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-rw-r--r--tools/perf/util/Build6
-rw-r--r--tools/perf/util/annotate.c128
-rw-r--r--tools/perf/util/annotate.h19
-rw-r--r--tools/perf/util/auxtrace.c15
-rw-r--r--tools/perf/util/auxtrace.h2
-rw-r--r--tools/perf/util/build-id.c38
-rw-r--r--tools/perf/util/build-id.h6
-rw-r--r--tools/perf/util/callchain.c93
-rw-r--r--tools/perf/util/callchain.h3
-rw-r--r--tools/perf/util/cloexec.h2
-rw-r--r--tools/perf/util/color.c21
-rw-r--r--tools/perf/util/color.h1
-rw-r--r--tools/perf/util/config.c4
-rw-r--r--tools/perf/util/counts.c52
-rw-r--r--tools/perf/util/counts.h37
-rw-r--r--tools/perf/util/debug.c5
-rw-r--r--tools/perf/util/debug.h1
-rw-r--r--tools/perf/util/dso.h6
-rw-r--r--tools/perf/util/dwarf-aux.c21
-rw-r--r--tools/perf/util/event.c28
-rw-r--r--tools/perf/util/event.h15
-rw-r--r--tools/perf/util/evlist.c48
-rw-r--r--tools/perf/util/evlist.h15
-rw-r--r--tools/perf/util/evsel.c173
-rw-r--r--tools/perf/util/evsel.h42
-rw-r--r--tools/perf/util/header.c36
-rw-r--r--tools/perf/util/header.h5
-rw-r--r--tools/perf/util/hist.c59
-rw-r--r--tools/perf/util/hist.h9
-rw-r--r--tools/perf/util/intel-bts.c933
-rw-r--r--tools/perf/util/intel-bts.h43
-rw-r--r--tools/perf/util/intel-pt-decoder/Build11
-rw-r--r--tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk386
-rw-r--r--tools/perf/util/intel-pt-decoder/inat.c96
-rw-r--r--tools/perf/util/intel-pt-decoder/inat.h221
-rw-r--r--tools/perf/util/intel-pt-decoder/inat_types.h29
-rw-r--r--tools/perf/util/intel-pt-decoder/insn.c594
-rw-r--r--tools/perf/util/intel-pt-decoder/insn.h201
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-decoder.c2345
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-decoder.h109
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c246
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h65
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-log.c155
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-log.h52
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c518
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h70
-rw-r--r--tools/perf/util/intel-pt-decoder/x86-opcode-map.txt970
-rw-r--r--tools/perf/util/intel-pt.c1956
-rw-r--r--tools/perf/util/intel-pt.h56
-rw-r--r--tools/perf/util/llvm-utils.c408
-rw-r--r--tools/perf/util/llvm-utils.h49
-rw-r--r--tools/perf/util/machine.c47
-rw-r--r--tools/perf/util/machine.h6
-rw-r--r--tools/perf/util/map.c27
-rw-r--r--tools/perf/util/map.h7
-rw-r--r--tools/perf/util/ordered-events.c3
-rw-r--r--tools/perf/util/parse-events.c184
-rw-r--r--tools/perf/util/parse-events.h5
-rw-r--r--tools/perf/util/parse-events.l4
-rw-r--r--tools/perf/util/pmu.c55
-rw-r--r--tools/perf/util/pmu.h1
-rw-r--r--tools/perf/util/probe-event.c603
-rw-r--r--tools/perf/util/probe-event.h13
-rw-r--r--tools/perf/util/probe-file.c301
-rw-r--r--tools/perf/util/probe-file.h18
-rw-r--r--tools/perf/util/probe-finder.c23
-rw-r--r--tools/perf/util/python-ext-sources2
-rw-r--r--tools/perf/util/python.c140
-rw-r--r--tools/perf/util/record.c34
-rw-r--r--tools/perf/util/session.c41
-rw-r--r--tools/perf/util/sort.c80
-rw-r--r--tools/perf/util/sort.h3
-rw-r--r--tools/perf/util/srcline.c6
-rw-r--r--tools/perf/util/stat-shadow.c8
-rw-r--r--tools/perf/util/stat.c188
-rw-r--r--tools/perf/util/stat.h36
-rw-r--r--tools/perf/util/string.c39
-rw-r--r--tools/perf/util/strlist.c43
-rw-r--r--tools/perf/util/strlist.h9
-rw-r--r--tools/perf/util/symbol-elf.c13
-rw-r--r--tools/perf/util/symbol.c27
-rw-r--r--tools/perf/util/symbol.h7
-rw-r--r--tools/perf/util/thread.c6
-rw-r--r--tools/perf/util/thread_map.c6
-rw-r--r--tools/perf/util/tool.h1
-rw-r--r--tools/perf/util/trace-event-info.c22
-rw-r--r--tools/perf/util/trace-event-parse.c30
-rw-r--r--tools/perf/util/trace-event-read.c28
-rw-r--r--tools/perf/util/trace-event.c44
-rw-r--r--tools/perf/util/trace-event.h2
-rw-r--r--tools/perf/util/util.c147
-rw-r--r--tools/perf/util/util.h17
92 files changed, 11803 insertions, 876 deletions
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index d2d318c59b37..e912856cc4e5 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -14,6 +14,7 @@ libperf-y += find_next_bit.o
libperf-y += help.o
libperf-y += kallsyms.o
libperf-y += levenshtein.o
+libperf-y += llvm-utils.o
libperf-y += parse-options.o
libperf-y += parse-events.o
libperf-y += path.o
@@ -67,6 +68,7 @@ libperf-y += target.o
libperf-y += rblist.o
libperf-y += intlist.o
libperf-y += vdso.o
+libperf-y += counts.o
libperf-y += stat.o
libperf-y += stat-shadow.o
libperf-y += record.o
@@ -76,9 +78,13 @@ libperf-$(CONFIG_X86) += tsc.o
libperf-y += cloexec.o
libperf-y += thread-stack.o
libperf-$(CONFIG_AUXTRACE) += auxtrace.o
+libperf-$(CONFIG_AUXTRACE) += intel-pt-decoder/
+libperf-$(CONFIG_AUXTRACE) += intel-pt.o
+libperf-$(CONFIG_AUXTRACE) += intel-bts.o
libperf-y += parse-branch-options.o
libperf-$(CONFIG_LIBELF) += symbol-elf.o
+libperf-$(CONFIG_LIBELF) += probe-file.o
libperf-$(CONFIG_LIBELF) += probe-event.o
ifndef CONFIG_LIBELF
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 03b7bc70eb66..d1eece70b84d 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -473,17 +473,73 @@ int symbol__alloc_hist(struct symbol *sym)
return 0;
}
+/* The cycles histogram is lazily allocated. */
+static int symbol__alloc_hist_cycles(struct symbol *sym)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ const size_t size = symbol__size(sym);
+
+ notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
+ if (notes->src->cycles_hist == NULL)
+ return -1;
+ return 0;
+}
+
void symbol__annotate_zero_histograms(struct symbol *sym)
{
struct annotation *notes = symbol__annotation(sym);
pthread_mutex_lock(&notes->lock);
- if (notes->src != NULL)
+ if (notes->src != NULL) {
memset(notes->src->histograms, 0,
notes->src->nr_histograms * notes->src->sizeof_sym_hist);
+ if (notes->src->cycles_hist)
+ memset(notes->src->cycles_hist, 0,
+ symbol__size(sym) * sizeof(struct cyc_hist));
+ }
pthread_mutex_unlock(&notes->lock);
}
+static int __symbol__account_cycles(struct annotation *notes,
+ u64 start,
+ unsigned offset, unsigned cycles,
+ unsigned have_start)
+{
+ struct cyc_hist *ch;
+
+ ch = notes->src->cycles_hist;
+ /*
+ * For now we can only account one basic block per
+ * final jump. But multiple could be overlapping.
+ * Always account the longest one. So when
+ * a shorter one has been already seen throw it away.
+ *
+ * We separately always account the full cycles.
+ */
+ ch[offset].num_aggr++;
+ ch[offset].cycles_aggr += cycles;
+
+ if (!have_start && ch[offset].have_start)
+ return 0;
+ if (ch[offset].num) {
+ if (have_start && (!ch[offset].have_start ||
+ ch[offset].start > start)) {
+ ch[offset].have_start = 0;
+ ch[offset].cycles = 0;
+ ch[offset].num = 0;
+ if (ch[offset].reset < 0xffff)
+ ch[offset].reset++;
+ } else if (have_start &&
+ ch[offset].start < start)
+ return 0;
+ }
+ ch[offset].have_start = have_start;
+ ch[offset].start = start;
+ ch[offset].cycles += cycles;
+ ch[offset].num++;
+ return 0;
+}
+
static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
struct annotation *notes, int evidx, u64 addr)
{
@@ -506,7 +562,7 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
return 0;
}
-static struct annotation *symbol__get_annotation(struct symbol *sym)
+static struct annotation *symbol__get_annotation(struct symbol *sym, bool cycles)
{
struct annotation *notes = symbol__annotation(sym);
@@ -514,6 +570,10 @@ static struct annotation *symbol__get_annotation(struct symbol *sym)
if (symbol__alloc_hist(sym) < 0)
return NULL;
}
+ if (!notes->src->cycles_hist && cycles) {
+ if (symbol__alloc_hist_cycles(sym) < 0)
+ return NULL;
+ }
return notes;
}
@@ -524,12 +584,73 @@ static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
if (sym == NULL)
return 0;
- notes = symbol__get_annotation(sym);
+ notes = symbol__get_annotation(sym, false);
if (notes == NULL)
return -ENOMEM;
return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
}
+static int symbol__account_cycles(u64 addr, u64 start,
+ struct symbol *sym, unsigned cycles)
+{
+ struct annotation *notes;
+ unsigned offset;
+
+ if (sym == NULL)
+ return 0;
+ notes = symbol__get_annotation(sym, true);
+ if (notes == NULL)
+ return -ENOMEM;
+ if (addr < sym->start || addr >= sym->end)
+ return -ERANGE;
+
+ if (start) {
+ if (start < sym->start || start >= sym->end)
+ return -ERANGE;
+ if (start >= addr)
+ start = 0;
+ }
+ offset = addr - sym->start;
+ return __symbol__account_cycles(notes,
+ start ? start - sym->start : 0,
+ offset, cycles,
+ !!start);
+}
+
+int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
+ struct addr_map_symbol *start,
+ unsigned cycles)
+{
+ u64 saddr = 0;
+ int err;
+
+ if (!cycles)
+ return 0;
+
+ /*
+ * Only set start when IPC can be computed. We can only
+ * compute it when the basic block is completely in a single
+ * function.
+ * Special case the case when the jump is elsewhere, but
+ * it starts on the function start.
+ */
+ if (start &&
+ (start->sym == ams->sym ||
+ (ams->sym &&
+ start->addr == ams->sym->start + ams->map->start)))
+ saddr = start->al_addr;
+ if (saddr == 0)
+ pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
+ ams->addr,
+ start ? start->addr : 0,
+ ams->sym ? ams->sym->start + ams->map->start : 0,
+ saddr);
+ err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles);
+ if (err)
+ pr_debug2("account_cycles failed %d\n", err);
+ return err;
+}
+
int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
{
return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
@@ -1005,6 +1126,7 @@ fallback:
dso->annotate_warned = 1;
pr_err("Can't annotate %s:\n\n"
"No vmlinux file%s\nwas found in the path.\n\n"
+ "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
"Please use:\n\n"
" perf buildid-cache -vu vmlinux\n\n"
"or:\n\n"
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 7e78e6c27078..e9996092a093 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -59,6 +59,8 @@ struct disasm_line {
char *name;
struct ins *ins;
int line_nr;
+ float ipc;
+ u64 cycles;
struct ins_operands ops;
};
@@ -79,6 +81,17 @@ struct sym_hist {
u64 addr[0];
};
+struct cyc_hist {
+ u64 start;
+ u64 cycles;
+ u64 cycles_aggr;
+ u32 num;
+ u32 num_aggr;
+ u8 have_start;
+ /* 1 byte padding */
+ u16 reset;
+};
+
struct source_line_samples {
double percent;
double percent_sum;
@@ -97,6 +110,7 @@ struct source_line {
* @histogram: Array of addr hit histograms per event being monitored
* @lines: If 'print_lines' is specified, per source code line percentages
* @source: source parsed from a disassembler like objdump -dS
+ * @cyc_hist: Average cycles per basic block
*
* lines is allocated, percentages calculated and all sorted by percentage
* when the annotation is about to be presented, so the percentages are for
@@ -109,6 +123,7 @@ struct annotated_source {
struct source_line *lines;
int nr_histograms;
int sizeof_sym_hist;
+ struct cyc_hist *cycles_hist;
struct sym_hist histograms[0];
};
@@ -130,6 +145,10 @@ static inline struct annotation *symbol__annotation(struct symbol *sym)
int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx);
+int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
+ struct addr_map_symbol *start,
+ unsigned cycles);
+
int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 addr);
int symbol__alloc_hist(struct symbol *sym);
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 83d9dd96fe08..a980e7c50ee0 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -47,6 +47,9 @@
#include "debug.h"
#include "parse-options.h"
+#include "intel-pt.h"
+#include "intel-bts.h"
+
int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
struct auxtrace_mmap_params *mp,
void *userpg, int fd)
@@ -876,7 +879,7 @@ static bool auxtrace__dont_decode(struct perf_session *session)
int perf_event__process_auxtrace_info(struct perf_tool *tool __maybe_unused,
union perf_event *event,
- struct perf_session *session __maybe_unused)
+ struct perf_session *session)
{
enum auxtrace_type type = event->auxtrace_info.type;
@@ -884,6 +887,10 @@ int perf_event__process_auxtrace_info(struct perf_tool *tool __maybe_unused,
fprintf(stdout, " type: %u\n", type);
switch (type) {
+ case PERF_AUXTRACE_INTEL_PT:
+ return intel_pt_process_auxtrace_info(event, session);
+ case PERF_AUXTRACE_INTEL_BTS:
+ return intel_bts_process_auxtrace_info(event, session);
case PERF_AUXTRACE_UNKNOWN:
default:
return -EINVAL;
@@ -942,6 +949,7 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
struct itrace_synth_opts *synth_opts = opt->value;
const char *p;
char *endptr;
+ bool period_type_set = false;
synth_opts->set = true;
@@ -970,10 +978,12 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
case 'i':
synth_opts->period_type =
PERF_ITRACE_PERIOD_INSTRUCTIONS;
+ period_type_set = true;
break;
case 't':
synth_opts->period_type =
PERF_ITRACE_PERIOD_TICKS;
+ period_type_set = true;
break;
case 'm':
synth_opts->period *= 1000;
@@ -986,6 +996,7 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
goto out_err;
synth_opts->period_type =
PERF_ITRACE_PERIOD_NANOSECS;
+ period_type_set = true;
break;
case '\0':
goto out;
@@ -1039,7 +1050,7 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
}
out:
if (synth_opts->instructions) {
- if (!synth_opts->period_type)
+ if (!period_type_set)
synth_opts->period_type =
PERF_ITRACE_DEFAULT_PERIOD_TYPE;
if (!synth_opts->period)
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 471aecbc4d68..bf72b77a588a 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -39,6 +39,8 @@ struct events_stats;
enum auxtrace_type {
PERF_AUXTRACE_UNKNOWN,
+ PERF_AUXTRACE_INTEL_PT,
+ PERF_AUXTRACE_INTEL_BTS,
};
enum itrace_period_type {
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 1f6fc2323ef9..d909459fb54c 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -93,6 +93,38 @@ int build_id__sprintf(const u8 *build_id, int len, char *bf)
return raw - build_id;
}
+int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id)
+{
+ char notes[PATH_MAX];
+ u8 build_id[BUILD_ID_SIZE];
+ int ret;
+
+ if (!root_dir)
+ root_dir = "";
+
+ scnprintf(notes, sizeof(notes), "%s/sys/kernel/notes", root_dir);
+
+ ret = sysfs__read_build_id(notes, build_id, sizeof(build_id));
+ if (ret < 0)
+ return ret;
+
+ return build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
+}
+
+int filename__sprintf_build_id(const char *pathname, char *sbuild_id)
+{
+ u8 build_id[BUILD_ID_SIZE];
+ int ret;
+
+ ret = filename__read_build_id(pathname, build_id, sizeof(build_id));
+ if (ret < 0)
+ return ret;
+ else if (ret != sizeof(build_id))
+ return -EINVAL;
+
+ return build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
+}
+
/* asnprintf consolidates asprintf and snprintf */
static int asnprintf(char **strp, size_t size, const char *fmt, ...)
{
@@ -124,7 +156,7 @@ static char *build_id__filename(const char *sbuild_id, char *bf, size_t size)
char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size)
{
- char build_id_hex[BUILD_ID_SIZE * 2 + 1];
+ char build_id_hex[SBUILD_ID_SIZE];
if (!dso->has_build_id)
return NULL;
@@ -291,7 +323,7 @@ int build_id_cache__list_build_ids(const char *pathname,
struct dirent *d;
int ret = 0;
- list = strlist__new(true, NULL);
+ list = strlist__new(NULL, NULL);
dir_name = build_id_cache__dirname_from_path(pathname, false, false);
if (!list || !dir_name) {
ret = -ENOMEM;
@@ -384,7 +416,7 @@ static int build_id_cache__add_b(const u8 *build_id, size_t build_id_size,
const char *name, bool is_kallsyms,
bool is_vdso)
{
- char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+ char sbuild_id[SBUILD_ID_SIZE];
build_id__sprintf(build_id, build_id_size, sbuild_id);
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index 85011222cc14..27a14a8a945b 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -1,7 +1,8 @@
#ifndef PERF_BUILD_ID_H_
#define PERF_BUILD_ID_H_ 1
-#define BUILD_ID_SIZE 20
+#define BUILD_ID_SIZE 20
+#define SBUILD_ID_SIZE (BUILD_ID_SIZE * 2 + 1)
#include "tool.h"
#include "strlist.h"
@@ -11,6 +12,9 @@ extern struct perf_tool build_id__mark_dso_hit_ops;
struct dso;
int build_id__sprintf(const u8 *build_id, int len, char *bf);
+int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id);
+int filename__sprintf_build_id(const char *pathname, char *sbuild_id);
+
char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size);
int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 9f643ee77001..773fe13ce627 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -25,96 +25,9 @@
__thread struct callchain_cursor callchain_cursor;
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
-static int get_stack_size(const char *str, unsigned long *_size)
-{
- char *endptr;
- unsigned long size;
- unsigned long max_size = round_down(USHRT_MAX, sizeof(u64));
-
- size = strtoul(str, &endptr, 0);
-
- do {
- if (*endptr)
- break;
-
- size = round_up(size, sizeof(u64));
- if (!size || size > max_size)
- break;
-
- *_size = size;
- return 0;
-
- } while (0);
-
- pr_err("callchain: Incorrect stack dump size (max %ld): %s\n",
- max_size, str);
- return -1;
-}
-#endif /* HAVE_DWARF_UNWIND_SUPPORT */
-
-int parse_callchain_record_opt(const char *arg)
+int parse_callchain_record_opt(const char *arg, struct callchain_param *param)
{
- char *tok, *name, *saveptr = NULL;
- char *buf;
- int ret = -1;
-
- /* We need buffer that we know we can write to. */
- buf = malloc(strlen(arg) + 1);
- if (!buf)
- return -ENOMEM;
-
- strcpy(buf, arg);
-
- tok = strtok_r((char *)buf, ",", &saveptr);
- name = tok ? : (char *)buf;
-
- do {
- /* Framepointer style */
- if (!strncmp(name, "fp", sizeof("fp"))) {
- if (!strtok_r(NULL, ",", &saveptr)) {
- callchain_param.record_mode = CALLCHAIN_FP;
- ret = 0;
- } else
- pr_err("callchain: No more arguments "
- "needed for --call-graph fp\n");
- break;
-
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
- /* Dwarf style */
- } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
- const unsigned long default_stack_dump_size = 8192;
-
- ret = 0;
- callchain_param.record_mode = CALLCHAIN_DWARF;
- callchain_param.dump_size = default_stack_dump_size;
-
- tok = strtok_r(NULL, ",", &saveptr);
- if (tok) {
- unsigned long size = 0;
-
- ret = get_stack_size(tok, &size);
- callchain_param.dump_size = size;
- }
-#endif /* HAVE_DWARF_UNWIND_SUPPORT */
- } else if (!strncmp(name, "lbr", sizeof("lbr"))) {
- if (!strtok_r(NULL, ",", &saveptr)) {
- callchain_param.record_mode = CALLCHAIN_LBR;
- ret = 0;
- } else
- pr_err("callchain: No more arguments "
- "needed for --call-graph lbr\n");
- break;
- } else {
- pr_err("callchain: Unknown --call-graph option "
- "value: %s\n", arg);
- break;
- }
-
- } while (0);
-
- free(buf);
- return ret;
+ return parse_callchain_record(arg, param);
}
static int parse_callchain_mode(const char *value)
@@ -219,7 +132,7 @@ int perf_callchain_config(const char *var, const char *value)
var += sizeof("call-graph.") - 1;
if (!strcmp(var, "record-mode"))
- return parse_callchain_record_opt(value);
+ return parse_callchain_record_opt(value, &callchain_param);
#ifdef HAVE_DWARF_UNWIND_SUPPORT
if (!strcmp(var, "dump-size")) {
unsigned long size = 0;
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 679c2c6d8ade..acee2b3cd801 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -177,7 +177,8 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *
bool hide_unresolved);
extern const char record_callchain_help[];
-int parse_callchain_record_opt(const char *arg);
+extern int parse_callchain_record(const char *arg, struct callchain_param *param);
+int parse_callchain_record_opt(const char *arg, struct callchain_param *param);
int parse_callchain_report_opt(const char *arg);
int perf_callchain_config(const char *var, const char *value);
diff --git a/tools/perf/util/cloexec.h b/tools/perf/util/cloexec.h
index 68888c29b04a..3bee6773ddb0 100644
--- a/tools/perf/util/cloexec.h
+++ b/tools/perf/util/cloexec.h
@@ -4,7 +4,7 @@
unsigned long perf_event_open_cloexec_flag(void);
#ifdef __GLIBC_PREREQ
-#if !__GLIBC_PREREQ(2, 6)
+#if !__GLIBC_PREREQ(2, 6) && !defined(__UCLIBC__)
extern int sched_getcpu(void) __THROW;
#endif
#endif
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index 55355b3d4f85..9b9565416f90 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -67,8 +67,9 @@ static int __color_vsnprintf(char *bf, size_t size, const char *color,
return r;
}
+/* Colors are not included in return value */
static int __color_vfprintf(FILE *fp, const char *color, const char *fmt,
- va_list args, const char *trail)
+ va_list args)
{
int r = 0;
@@ -83,12 +84,10 @@ static int __color_vfprintf(FILE *fp, const char *color, const char *fmt,
}
if (perf_use_color_default && *color)
- r += fprintf(fp, "%s", color);
+ fprintf(fp, "%s", color);
r += vfprintf(fp, fmt, args);
if (perf_use_color_default && *color)
- r += fprintf(fp, "%s", PERF_COLOR_RESET);
- if (trail)
- r += fprintf(fp, "%s", trail);
+ fprintf(fp, "%s", PERF_COLOR_RESET);
return r;
}
@@ -100,7 +99,7 @@ int color_vsnprintf(char *bf, size_t size, const char *color,
int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args)
{
- return __color_vfprintf(fp, color, fmt, args, NULL);
+ return __color_vfprintf(fp, color, fmt, args);
}
int color_snprintf(char *bf, size_t size, const char *color,
@@ -126,16 +125,6 @@ int color_fprintf(FILE *fp, const char *color, const char *fmt, ...)
return r;
}
-int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...)
-{
- va_list args;
- int r;
- va_start(args, fmt);
- r = __color_vfprintf(fp, color, fmt, args, "\n");
- va_end(args);
- return r;
-}
-
/*
* This function splits the buffer by newlines and colors the lines individually.
*
diff --git a/tools/perf/util/color.h b/tools/perf/util/color.h
index 38146f922c54..a93997f16dec 100644
--- a/tools/perf/util/color.h
+++ b/tools/perf/util/color.h
@@ -35,7 +35,6 @@ int color_vsnprintf(char *bf, size_t size, const char *color,
int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args);
int color_fprintf(FILE *fp, const char *color, const char *fmt, ...);
int color_snprintf(char *bf, size_t size, const char *color, const char *fmt, ...);
-int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);
int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf);
int value_color_snprintf(char *bf, size_t size, const char *fmt, double value);
int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...);
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index e18f653cd7db..2e452ac1353d 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -12,6 +12,7 @@
#include "cache.h"
#include "exec_cmd.h"
#include "util/hist.h" /* perf_hist_config */
+#include "util/llvm-utils.h" /* perf_llvm_config */
#define MAXNAME (256)
@@ -408,6 +409,9 @@ int perf_default_config(const char *var, const char *value,
if (!prefixcmp(var, "call-graph."))
return perf_callchain_config(var, value);
+ if (!prefixcmp(var, "llvm."))
+ return perf_llvm_config(var, value);
+
/* Add other config variables here. */
return 0;
}
diff --git a/tools/perf/util/counts.c b/tools/perf/util/counts.c
new file mode 100644
index 000000000000..e3fde313deb2
--- /dev/null
+++ b/tools/perf/util/counts.c
@@ -0,0 +1,52 @@
+#include <stdlib.h>
+#include "evsel.h"
+#include "counts.h"
+
+struct perf_counts *perf_counts__new(int ncpus, int nthreads)
+{
+ struct perf_counts *counts = zalloc(sizeof(*counts));
+
+ if (counts) {
+ struct xyarray *values;
+
+ values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
+ if (!values) {
+ free(counts);
+ return NULL;
+ }
+
+ counts->values = values;
+ }
+
+ return counts;
+}
+
+void perf_counts__delete(struct perf_counts *counts)
+{
+ if (counts) {
+ xyarray__delete(counts->values);
+ free(counts);
+ }
+}
+
+static void perf_counts__reset(struct perf_counts *counts)
+{
+ xyarray__reset(counts->values);
+}
+
+void perf_evsel__reset_counts(struct perf_evsel *evsel)
+{
+ perf_counts__reset(evsel->counts);
+}
+
+int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads)
+{
+ evsel->counts = perf_counts__new(ncpus, nthreads);
+ return evsel->counts != NULL ? 0 : -ENOMEM;
+}
+
+void perf_evsel__free_counts(struct perf_evsel *evsel)
+{
+ perf_counts__delete(evsel->counts);
+ evsel->counts = NULL;
+}
diff --git a/tools/perf/util/counts.h b/tools/perf/util/counts.h
new file mode 100644
index 000000000000..34d8baaf558a
--- /dev/null
+++ b/tools/perf/util/counts.h
@@ -0,0 +1,37 @@
+#ifndef __PERF_COUNTS_H
+#define __PERF_COUNTS_H
+
+#include "xyarray.h"
+
+struct perf_counts_values {
+ union {
+ struct {
+ u64 val;
+ u64 ena;
+ u64 run;
+ };
+ u64 values[3];
+ };
+};
+
+struct perf_counts {
+ s8 scaled;
+ struct perf_counts_values aggr;
+ struct xyarray *values;
+};
+
+
+static inline struct perf_counts_values*
+perf_counts(struct perf_counts *counts, int cpu, int thread)
+{
+ return xyarray__entry(counts->values, cpu, thread);
+}
+
+struct perf_counts *perf_counts__new(int ncpus, int nthreads);
+void perf_counts__delete(struct perf_counts *counts);
+
+void perf_evsel__reset_counts(struct perf_evsel *evsel);
+int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads);
+void perf_evsel__free_counts(struct perf_evsel *evsel);
+
+#endif /* __PERF_COUNTS_H */
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 2da5581ec74d..86d9c7302598 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -36,6 +36,11 @@ static int _eprintf(int level, int var, const char *fmt, va_list args)
return ret;
}
+int veprintf(int level, int var, const char *fmt, va_list args)
+{
+ return _eprintf(level, var, fmt, args);
+}
+
int eprintf(int level, int var, const char *fmt, ...)
{
va_list args;
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index caac2fdc6105..8b9a088c32ab 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -50,6 +50,7 @@ void pr_stat(const char *fmt, ...);
int eprintf(int level, int var, const char *fmt, ...) __attribute__((format(printf, 3, 4)));
int eprintf_time(int level, int var, u64 t, const char *fmt, ...) __attribute__((format(printf, 4, 5)));
+int veprintf(int level, int var, const char *fmt, va_list args);
int perf_debug_option(const char *str);
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 2fe98bb0e95b..fc8db9c764ac 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -137,6 +137,10 @@ struct dso {
struct rb_node rb_node; /* rbtree node sorted by long name */
struct rb_root symbols[MAP__NR_TYPES];
struct rb_root symbol_names[MAP__NR_TYPES];
+ struct {
+ u64 addr;
+ struct symbol *symbol;
+ } last_find_result[MAP__NR_TYPES];
void *a2l;
char *symsrc_filename;
unsigned int a2l_fails;
@@ -320,6 +324,8 @@ struct dso *__dsos__findnew(struct dsos *dsos, const char *name);
struct dso *dsos__findnew(struct dsos *dsos, const char *name);
bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
+void dso__reset_find_symbol_cache(struct dso *dso);
+
size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
bool (skip)(struct dso *dso, int parm), int parm);
size_t __dsos__fprintf(struct list_head *head, FILE *fp);
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
index 57f3ef41c2bc..a509aa8433a1 100644
--- a/tools/perf/util/dwarf-aux.c
+++ b/tools/perf/util/dwarf-aux.c
@@ -734,15 +734,18 @@ int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data)
Dwarf_Lines *lines;
Dwarf_Line *line;
Dwarf_Addr addr;
- const char *fname;
+ const char *fname, *decf = NULL;
int lineno, ret = 0;
+ int decl = 0, inl;
Dwarf_Die die_mem, *cu_die;
size_t nlines, i;
/* Get the CU die */
- if (dwarf_tag(rt_die) != DW_TAG_compile_unit)
+ if (dwarf_tag(rt_die) != DW_TAG_compile_unit) {
cu_die = dwarf_diecu(rt_die, &die_mem, NULL, NULL);
- else
+ dwarf_decl_line(rt_die, &decl);
+ decf = dwarf_decl_file(rt_die);
+ } else
cu_die = rt_die;
if (!cu_die) {
pr_debug2("Failed to get CU from given DIE.\n");
@@ -767,15 +770,21 @@ int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data)
continue;
}
/* Filter lines based on address */
- if (rt_die != cu_die)
+ if (rt_die != cu_die) {
/*
* Address filtering
* The line is included in given function, and
* no inline block includes it.
*/
- if (!dwarf_haspc(rt_die, addr) ||
- die_find_inlinefunc(rt_die, addr, &die_mem))
+ if (!dwarf_haspc(rt_die, addr))
continue;
+ if (die_find_inlinefunc(rt_die, addr, &die_mem)) {
+ dwarf_decl_line(&die_mem, &inl);
+ if (inl != decl ||
+ decf != dwarf_decl_file(&die_mem))
+ continue;
+ }
+ }
/* Get source line */
fname = dwarf_linesrc(line, NULL, NULL);
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 67a977e5d0ab..7ff61274ed57 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -26,6 +26,8 @@ static const char *perf_event__names[] = {
[PERF_RECORD_AUX] = "AUX",
[PERF_RECORD_ITRACE_START] = "ITRACE_START",
[PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES",
+ [PERF_RECORD_SWITCH] = "SWITCH",
+ [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE",
[PERF_RECORD_HEADER_ATTR] = "ATTR",
[PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE",
[PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA",
@@ -749,6 +751,14 @@ int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused,
return machine__process_lost_samples_event(machine, event, sample);
}
+int perf_event__process_switch(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine)
+{
+ return machine__process_switch_event(machine, event);
+}
+
size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
{
return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n",
@@ -827,6 +837,20 @@ size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
event->itrace_start.pid, event->itrace_start.tid);
}
+size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
+{
+ bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
+ const char *in_out = out ? "OUT" : "IN ";
+
+ if (event->header.type == PERF_RECORD_SWITCH)
+ return fprintf(fp, " %s\n", in_out);
+
+ return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n",
+ in_out, out ? "next" : "prev",
+ event->context_switch.next_prev_pid,
+ event->context_switch.next_prev_tid);
+}
+
size_t perf_event__fprintf(union perf_event *event, FILE *fp)
{
size_t ret = fprintf(fp, "PERF_RECORD_%s",
@@ -852,6 +876,10 @@ size_t perf_event__fprintf(union perf_event *event, FILE *fp)
case PERF_RECORD_ITRACE_START:
ret += perf_event__fprintf_itrace_start(event, fp);
break;
+ case PERF_RECORD_SWITCH:
+ case PERF_RECORD_SWITCH_CPU_WIDE:
+ ret += perf_event__fprintf_switch(event, fp);
+ break;
default:
ret += fprintf(fp, "\n");
}
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index c53f36384b64..f729df5e25e6 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -134,7 +134,8 @@ struct branch_flags {
u64 predicted:1;
u64 in_tx:1;
u64 abort:1;
- u64 reserved:60;
+ u64 cycles:16;
+ u64 reserved:44;
};
struct branch_entry {
@@ -348,6 +349,12 @@ struct itrace_start_event {
u32 pid, tid;
};
+struct context_switch_event {
+ struct perf_event_header header;
+ u32 next_prev_pid;
+ u32 next_prev_tid;
+};
+
union perf_event {
struct perf_event_header header;
struct mmap_event mmap;
@@ -369,6 +376,7 @@ union perf_event {
struct auxtrace_error_event auxtrace_error;
struct aux_event aux;
struct itrace_start_event itrace_start;
+ struct context_switch_event context_switch;
};
void perf_event__print_totals(void);
@@ -418,6 +426,10 @@ int perf_event__process_itrace_start(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
struct machine *machine);
+int perf_event__process_switch(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine);
int perf_event__process_mmap(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
@@ -480,6 +492,7 @@ size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
+size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
size_t perf_event__fprintf(union perf_event *event, FILE *fp);
u64 kallsyms__get_function_start(const char *kallsyms_filename,
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 6cfdee68e763..8d00039d6a20 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -98,6 +98,7 @@ static void perf_evlist__purge(struct perf_evlist *evlist)
evlist__for_each_safe(evlist, n, pos) {
list_del_init(&pos->node);
+ pos->evlist = NULL;
perf_evsel__delete(pos);
}
@@ -125,6 +126,7 @@ void perf_evlist__delete(struct perf_evlist *evlist)
void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
{
+ entry->evlist = evlist;
list_add_tail(&entry->node, &evlist->entries);
entry->idx = evlist->nr_entries;
entry->tracking = !entry->idx;
@@ -573,7 +575,7 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id)
{
struct perf_sample_id *sid;
- if (evlist->nr_entries == 1)
+ if (evlist->nr_entries == 1 || !id)
return perf_evlist__first(evlist);
sid = perf_evlist__id2sid(evlist, id);
@@ -1102,7 +1104,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
}
static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
- struct target *target)
+ bool has_user_cpus)
{
struct perf_evsel *evsel;
@@ -1111,15 +1113,16 @@ static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
* We already have cpus for evsel (via PMU sysfs) so
* keep it, if there's no target cpu list defined.
*/
- if (evsel->cpus && target->cpu_list)
+ if (evsel->cpus && has_user_cpus)
cpu_map__put(evsel->cpus);
- if (!evsel->cpus || target->cpu_list)
+ if (!evsel->cpus || has_user_cpus)
evsel->cpus = cpu_map__get(evlist->cpus);
evsel->threads = thread_map__get(evlist->threads);
- if (!evsel->cpus || !evsel->threads)
+ if ((evlist->cpus && !evsel->cpus) ||
+ (evlist->threads && !evsel->threads))
return -ENOMEM;
}
@@ -1142,7 +1145,7 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
if (evlist->cpus == NULL)
goto out_delete_threads;
- return perf_evlist__propagate_maps(evlist, target);
+ return perf_evlist__propagate_maps(evlist, !!target->cpu_list);
out_delete_threads:
thread_map__put(evlist->threads);
@@ -1150,6 +1153,23 @@ out_delete_threads:
return -1;
}
+int perf_evlist__set_maps(struct perf_evlist *evlist,
+ struct cpu_map *cpus,
+ struct thread_map *threads)
+{
+ if (evlist->cpus)
+ cpu_map__put(evlist->cpus);
+
+ evlist->cpus = cpus;
+
+ if (evlist->threads)
+ thread_map__put(evlist->threads);
+
+ evlist->threads = threads;
+
+ return perf_evlist__propagate_maps(evlist, false);
+}
+
int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel)
{
struct perf_evsel *evsel;
@@ -1161,7 +1181,7 @@ int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **e
if (evsel->filter == NULL)
continue;
- err = perf_evsel__set_filter(evsel, ncpus, nthreads, evsel->filter);
+ err = perf_evsel__apply_filter(evsel, ncpus, nthreads, evsel->filter);
if (err) {
*err_evsel = evsel;
break;
@@ -1175,11 +1195,9 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter)
{
struct perf_evsel *evsel;
int err = 0;
- const int ncpus = cpu_map__nr(evlist->cpus),
- nthreads = thread_map__nr(evlist->threads);
evlist__for_each(evlist, evsel) {
- err = perf_evsel__set_filter(evsel, ncpus, nthreads, filter);
+ err = perf_evsel__set_filter(evsel, filter);
if (err)
break;
}
@@ -1257,6 +1275,16 @@ u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist)
return __perf_evlist__combined_sample_type(evlist);
}
+u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel;
+ u64 branch_type = 0;
+
+ evlist__for_each(evlist, evsel)
+ branch_type |= evsel->attr.branch_sample_type;
+ return branch_type;
+}
+
bool perf_evlist__valid_read_format(struct perf_evlist *evlist)
{
struct perf_evsel *first = perf_evlist__first(evlist), *pos = first;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 037633c1da9d..b39a6198f4ac 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -56,6 +56,7 @@ struct perf_evlist {
struct cpu_map *cpus;
struct perf_evsel *selected;
struct events_stats stats;
+ struct perf_env *env;
};
struct perf_evsel_str_handler {
@@ -114,6 +115,8 @@ void perf_evlist__close(struct perf_evlist *evlist);
void perf_evlist__set_id_pos(struct perf_evlist *evlist);
bool perf_can_sample_identifier(void);
+bool perf_can_record_switch_events(void);
+bool perf_can_record_cpu_wide(void);
void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts);
int record_opts__config(struct record_opts *opts);
@@ -152,14 +155,9 @@ int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
void perf_evlist__set_selected(struct perf_evlist *evlist,
struct perf_evsel *evsel);
-static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
- struct cpu_map *cpus,
- struct thread_map *threads)
-{
- evlist->cpus = cpus;
- evlist->threads = threads;
-}
-
+int perf_evlist__set_maps(struct perf_evlist *evlist,
+ struct cpu_map *cpus,
+ struct thread_map *threads);
int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
@@ -169,6 +167,7 @@ void perf_evlist__set_leader(struct perf_evlist *evlist);
u64 perf_evlist__read_format(struct perf_evlist *evlist);
u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
+u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist);
bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 2936b3080722..bac25f41a751 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -206,10 +206,13 @@ void perf_evsel__init(struct perf_evsel *evsel,
evsel->leader = evsel;
evsel->unit = "";
evsel->scale = 1.0;
+ evsel->evlist = NULL;
INIT_LIST_HEAD(&evsel->node);
+ INIT_LIST_HEAD(&evsel->config_terms);
perf_evsel__object.init(evsel);
evsel->sample_size = __perf_evsel__sample_size(attr->sample_type);
perf_evsel__calc_id_pos(evsel);
+ evsel->cmdline_group_boundary = false;
}
struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)
@@ -543,14 +546,15 @@ int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size)
static void
perf_evsel__config_callgraph(struct perf_evsel *evsel,
- struct record_opts *opts)
+ struct record_opts *opts,
+ struct callchain_param *param)
{
bool function = perf_evsel__is_function_event(evsel);
struct perf_event_attr *attr = &evsel->attr;
perf_evsel__set_sample_bit(evsel, CALLCHAIN);
- if (callchain_param.record_mode == CALLCHAIN_LBR) {
+ if (param->record_mode == CALLCHAIN_LBR) {
if (!opts->branch_stack) {
if (attr->exclude_user) {
pr_warning("LBR callstack option is only available "
@@ -566,12 +570,12 @@ perf_evsel__config_callgraph(struct perf_evsel *evsel,
"Falling back to framepointers.\n");
}
- if (callchain_param.record_mode == CALLCHAIN_DWARF) {
+ if (param->record_mode == CALLCHAIN_DWARF) {
if (!function) {
perf_evsel__set_sample_bit(evsel, REGS_USER);
perf_evsel__set_sample_bit(evsel, STACK_USER);
attr->sample_regs_user = PERF_REGS_MASK;
- attr->sample_stack_user = callchain_param.dump_size;
+ attr->sample_stack_user = param->dump_size;
attr->exclude_callchain_user = 1;
} else {
pr_info("Cannot use DWARF unwind for function trace event,"
@@ -585,6 +589,97 @@ perf_evsel__config_callgraph(struct perf_evsel *evsel,
}
}
+static void
+perf_evsel__reset_callgraph(struct perf_evsel *evsel,
+ struct callchain_param *param)
+{
+ struct perf_event_attr *attr = &evsel->attr;
+
+ perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
+ if (param->record_mode == CALLCHAIN_LBR) {
+ perf_evsel__reset_sample_bit(evsel, BRANCH_STACK);
+ attr->branch_sample_type &= ~(PERF_SAMPLE_BRANCH_USER |
+ PERF_SAMPLE_BRANCH_CALL_STACK);
+ }
+ if (param->record_mode == CALLCHAIN_DWARF) {
+ perf_evsel__reset_sample_bit(evsel, REGS_USER);
+ perf_evsel__reset_sample_bit(evsel, STACK_USER);
+ }
+}
+
+static void apply_config_terms(struct perf_evsel *evsel,
+ struct record_opts *opts)
+{
+ struct perf_evsel_config_term *term;
+ struct list_head *config_terms = &evsel->config_terms;
+ struct perf_event_attr *attr = &evsel->attr;
+ struct callchain_param param;
+ u32 dump_size = 0;
+ char *callgraph_buf = NULL;
+
+ /* callgraph default */
+ param.record_mode = callchain_param.record_mode;
+
+ list_for_each_entry(term, config_terms, list) {
+ switch (term->type) {
+ case PERF_EVSEL__CONFIG_TERM_PERIOD:
+ attr->sample_period = term->val.period;
+ attr->freq = 0;
+ break;
+ case PERF_EVSEL__CONFIG_TERM_FREQ:
+ attr->sample_freq = term->val.freq;
+ attr->freq = 1;
+ break;
+ case PERF_EVSEL__CONFIG_TERM_TIME:
+ if (term->val.time)
+ perf_evsel__set_sample_bit(evsel, TIME);
+ else
+ perf_evsel__reset_sample_bit(evsel, TIME);
+ break;
+ case PERF_EVSEL__CONFIG_TERM_CALLGRAPH:
+ callgraph_buf = term->val.callgraph;
+ break;
+ case PERF_EVSEL__CONFIG_TERM_STACK_USER:
+ dump_size = term->val.stack_user;
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* User explicitly set per-event callgraph, clear the old setting and reset. */
+ if ((callgraph_buf != NULL) || (dump_size > 0)) {
+
+ /* parse callgraph parameters */
+ if (callgraph_buf != NULL) {
+ if (!strcmp(callgraph_buf, "no")) {
+ param.enabled = false;
+ param.record_mode = CALLCHAIN_NONE;
+ } else {
+ param.enabled = true;
+ if (parse_callchain_record(callgraph_buf, &param)) {
+ pr_err("per-event callgraph setting for %s failed. "
+ "Apply callgraph global setting for it\n",
+ evsel->name);
+ return;
+ }
+ }
+ }
+ if (dump_size > 0) {
+ dump_size = round_up(dump_size, sizeof(u64));
+ param.dump_size = dump_size;
+ }
+
+ /* If global callgraph set, clear it */
+ if (callchain_param.enabled)
+ perf_evsel__reset_callgraph(evsel, &callchain_param);
+
+ /* set perf-event callgraph */
+ if (param.enabled)
+ perf_evsel__config_callgraph(evsel, opts, &param);
+ }
+}
+
/*
* The enable_on_exec/disabled value strategy:
*
@@ -689,7 +784,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
evsel->attr.exclude_callchain_user = 1;
if (callchain_param.enabled && !evsel->no_aux_samples)
- perf_evsel__config_callgraph(evsel, opts);
+ perf_evsel__config_callgraph(evsel, opts, &callchain_param);
if (opts->sample_intr_regs) {
attr->sample_regs_intr = PERF_REGS_MASK;
@@ -707,7 +802,8 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
*/
if (opts->sample_time &&
(!perf_missing_features.sample_id_all &&
- (!opts->no_inherit || target__has_cpu(&opts->target) || per_cpu)))
+ (!opts->no_inherit || target__has_cpu(&opts->target) || per_cpu ||
+ opts->sample_time_set)))
perf_evsel__set_sample_bit(evsel, TIME);
if (opts->raw_samples && !evsel->no_aux_samples) {
@@ -736,6 +832,9 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
attr->mmap2 = track && !perf_missing_features.mmap2;
attr->comm = track;
+ if (opts->record_switch_events)
+ attr->context_switch = track;
+
if (opts->sample_transaction)
perf_evsel__set_sample_bit(evsel, TRANSACTION);
@@ -772,6 +871,12 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
attr->use_clockid = 1;
attr->clockid = opts->clockid;
}
+
+ /*
+ * Apply event specific term settings,
+ * it overloads any global configuration.
+ */
+ apply_config_terms(evsel, opts);
}
static int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
@@ -815,14 +920,44 @@ static int perf_evsel__run_ioctl(struct perf_evsel *evsel, int ncpus, int nthrea
return 0;
}
-int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
- const char *filter)
+int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
+ const char *filter)
{
return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
PERF_EVENT_IOC_SET_FILTER,
(void *)filter);
}
+int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter)
+{
+ char *new_filter = strdup(filter);
+
+ if (new_filter != NULL) {
+ free(evsel->filter);
+ evsel->filter = new_filter;
+ return 0;
+ }
+
+ return -1;
+}
+
+int perf_evsel__append_filter(struct perf_evsel *evsel,
+ const char *op, const char *filter)
+{
+ char *new_filter;
+
+ if (evsel->filter == NULL)
+ return perf_evsel__set_filter(evsel, filter);
+
+ if (asprintf(&new_filter,"(%s) %s (%s)", evsel->filter, op, filter) > 0) {
+ free(evsel->filter);
+ evsel->filter = new_filter;
+ return 0;
+ }
+
+ return -1;
+}
+
int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads)
{
return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
@@ -865,6 +1000,16 @@ static void perf_evsel__free_id(struct perf_evsel *evsel)
zfree(&evsel->id);
}
+static void perf_evsel__free_config_terms(struct perf_evsel *evsel)
+{
+ struct perf_evsel_config_term *term, *h;
+
+ list_for_each_entry_safe(term, h, &evsel->config_terms, list) {
+ list_del(&term->list);
+ free(term);
+ }
+}
+
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
{
int cpu, thread;
@@ -882,8 +1027,10 @@ void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
void perf_evsel__exit(struct perf_evsel *evsel)
{
assert(list_empty(&evsel->node));
+ assert(evsel->evlist == NULL);
perf_evsel__free_fd(evsel);
perf_evsel__free_id(evsel);
+ perf_evsel__free_config_terms(evsel);
close_cgroup(evsel->cgrp);
cpu_map__put(evsel->cpus);
thread_map__put(evsel->threads);
@@ -1095,6 +1242,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
PRINT_ATTRf(mmap2, p_unsigned);
PRINT_ATTRf(comm_exec, p_unsigned);
PRINT_ATTRf(use_clockid, p_unsigned);
+ PRINT_ATTRf(context_switch, p_unsigned);
PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsigned);
PRINT_ATTRf(bp_type, p_unsigned);
@@ -2075,8 +2223,13 @@ int perf_evsel__fprintf(struct perf_evsel *evsel,
printed += perf_event_attr__fprintf(fp, &evsel->attr,
__print_attr__fprintf, &first);
} else if (details->freq) {
- printed += comma_fprintf(fp, &first, " sample_freq=%" PRIu64,
- (u64)evsel->attr.sample_freq);
+ const char *term = "sample_freq";
+
+ if (!evsel->attr.freq)
+ term = "sample_period";
+
+ printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
+ term, (u64)evsel->attr.sample_freq);
}
out:
fputc('\n', fp);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 4a7ed5656cf0..298e6bbca200 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -9,7 +9,7 @@
#include "xyarray.h"
#include "symbol.h"
#include "cpumap.h"
-#include "stat.h"
+#include "counts.h"
struct perf_evsel;
@@ -31,8 +31,38 @@ struct perf_sample_id {
struct cgroup_sel;
+/*
+ * The 'struct perf_evsel_config_term' is used to pass event
+ * specific configuration data to perf_evsel__config routine.
+ * It is allocated within event parsing and attached to
+ * perf_evsel::config_terms list head.
+*/
+enum {
+ PERF_EVSEL__CONFIG_TERM_PERIOD,
+ PERF_EVSEL__CONFIG_TERM_FREQ,
+ PERF_EVSEL__CONFIG_TERM_TIME,
+ PERF_EVSEL__CONFIG_TERM_CALLGRAPH,
+ PERF_EVSEL__CONFIG_TERM_STACK_USER,
+ PERF_EVSEL__CONFIG_TERM_MAX,
+};
+
+struct perf_evsel_config_term {
+ struct list_head list;
+ int type;
+ union {
+ u64 period;
+ u64 freq;
+ bool time;
+ char *callgraph;
+ u64 stack_user;
+ } val;
+};
+
/** struct perf_evsel - event selector
*
+ * @evlist - evlist this evsel is in, if it is in one.
+ * @node - To insert it into evlist->entries or in other list_heads, say in
+ * the event parsing routines.
* @name - Can be set to retain the original event name passed by the user,
* so that when showing results in tools such as 'perf stat', we
* show the name used, not some alias.
@@ -46,6 +76,7 @@ struct cgroup_sel;
*/
struct perf_evsel {
struct list_head node;
+ struct perf_evlist *evlist;
struct perf_event_attr attr;
char *filter;
struct xyarray *fd;
@@ -86,6 +117,8 @@ struct perf_evsel {
unsigned long *per_pkg_mask;
struct perf_evsel *leader;
char *group_name;
+ bool cmdline_group_boundary;
+ struct list_head config_terms;
};
union u64_swap {
@@ -182,8 +215,11 @@ void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
void perf_evsel__set_sample_id(struct perf_evsel *evsel,
bool use_sample_identifier);
-int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
- const char *filter);
+int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter);
+int perf_evsel__append_filter(struct perf_evsel *evsel,
+ const char *op, const char *filter);
+int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
+ const char *filter);
int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 03ace57a800c..41814547da15 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -923,17 +923,13 @@ static void print_cmdline(struct perf_header *ph, int fd __maybe_unused,
FILE *fp)
{
int nr, i;
- char *str;
nr = ph->env.nr_cmdline;
- str = ph->env.cmdline;
fprintf(fp, "# cmdline : ");
- for (i = 0; i < nr; i++) {
- fprintf(fp, "%s ", str);
- str += strlen(str) + 1;
- }
+ for (i = 0; i < nr; i++)
+ fprintf(fp, "%s ", ph->env.cmdline_argv[i]);
fputc('\n', fp);
}
@@ -1541,14 +1537,13 @@ process_event_desc(struct perf_file_section *section __maybe_unused,
return 0;
}
-static int process_cmdline(struct perf_file_section *section __maybe_unused,
+static int process_cmdline(struct perf_file_section *section,
struct perf_header *ph, int fd,
void *data __maybe_unused)
{
ssize_t ret;
- char *str;
- u32 nr, i;
- struct strbuf sb;
+ char *str, *cmdline = NULL, **argv = NULL;
+ u32 nr, i, len = 0;
ret = readn(fd, &nr, sizeof(nr));
if (ret != sizeof(nr))
@@ -1558,22 +1553,32 @@ static int process_cmdline(struct perf_file_section *section __maybe_unused,
nr = bswap_32(nr);
ph->env.nr_cmdline = nr;
- strbuf_init(&sb, 128);
+
+ cmdline = zalloc(section->size + nr + 1);
+ if (!cmdline)
+ return -1;
+
+ argv = zalloc(sizeof(char *) * (nr + 1));
+ if (!argv)
+ goto error;
for (i = 0; i < nr; i++) {
str = do_read_string(fd, ph);
if (!str)
goto error;
- /* include a NULL character at the end */
- strbuf_add(&sb, str, strlen(str) + 1);
+ argv[i] = cmdline + len;
+ memcpy(argv[i], str, strlen(str) + 1);
+ len += strlen(str) + 1;
free(str);
}
- ph->env.cmdline = strbuf_detach(&sb, NULL);
+ ph->env.cmdline = cmdline;
+ ph->env.cmdline_argv = (const char **) argv;
return 0;
error:
- strbuf_release(&sb);
+ free(argv);
+ free(cmdline);
return -1;
}
@@ -2509,6 +2514,7 @@ int perf_session__read_header(struct perf_session *session)
if (session->evlist == NULL)
return -ENOMEM;
+ session->evlist->env = &header->env;
if (perf_data_file__is_pipe(file))
return perf_header__read_pipe(session);
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index d4d57962c591..396e4965f0c9 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -66,7 +66,7 @@ struct perf_header;
int perf_file_header__read(struct perf_file_header *header,
struct perf_header *ph, int fd);
-struct perf_session_env {
+struct perf_env {
char *hostname;
char *os_release;
char *version;
@@ -84,6 +84,7 @@ struct perf_session_env {
int nr_pmu_mappings;
int nr_groups;
char *cmdline;
+ const char **cmdline_argv;
char *sibling_cores;
char *sibling_threads;
char *numa_nodes;
@@ -97,7 +98,7 @@ struct perf_header {
u64 data_size;
u64 feat_offset;
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
- struct perf_session_env env;
+ struct perf_env env;
};
struct perf_evlist;
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 6f28d53d4e46..08b6cd945f1e 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -151,6 +151,12 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
hists__new_col_len(hists, HISTC_LOCAL_WEIGHT, 12);
hists__new_col_len(hists, HISTC_GLOBAL_WEIGHT, 12);
+ if (h->srcline)
+ hists__new_col_len(hists, HISTC_SRCLINE, strlen(h->srcline));
+
+ if (h->srcfile)
+ hists__new_col_len(hists, HISTC_SRCFILE, strlen(h->srcfile));
+
if (h->transaction)
hists__new_col_len(hists, HISTC_TRANSACTION,
hist_entry__transaction_len());
@@ -618,7 +624,8 @@ iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *a
* and not events sampled. Thus we use a pseudo period of 1.
*/
he = __hists__add_entry(hists, al, iter->parent, &bi[i], NULL,
- 1, 1, 0, true);
+ 1, bi->flags.cycles ? bi->flags.cycles : 1,
+ 0, true);
if (he == NULL)
return -ENOMEM;
@@ -760,6 +767,7 @@ iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
struct hist_entry **he_cache = iter->priv;
struct hist_entry *he;
struct hist_entry he_tmp = {
+ .hists = evsel__hists(evsel),
.cpu = al->cpu,
.thread = al->thread,
.comm = thread__comm(al->thread),
@@ -944,6 +952,8 @@ void hist_entry__delete(struct hist_entry *he)
zfree(&he->stat_acc);
free_srcline(he->srcline);
+ if (he->srcfile && he->srcfile[0])
+ free(he->srcfile);
free_callchain(he->callchain);
free(he);
}
@@ -1099,13 +1109,14 @@ void hists__inc_stats(struct hists *hists, struct hist_entry *h)
static void __hists__insert_output_entry(struct rb_root *entries,
struct hist_entry *he,
- u64 min_callchain_hits)
+ u64 min_callchain_hits,
+ bool use_callchain)
{
struct rb_node **p = &entries->rb_node;
struct rb_node *parent = NULL;
struct hist_entry *iter;
- if (symbol_conf.use_callchain)
+ if (use_callchain)
callchain_param.sort(&he->sorted_chain, he->callchain,
min_callchain_hits, &callchain_param);
@@ -1129,6 +1140,13 @@ void hists__output_resort(struct hists *hists, struct ui_progress *prog)
struct rb_node *next;
struct hist_entry *n;
u64 min_callchain_hits;
+ struct perf_evsel *evsel = hists_to_evsel(hists);
+ bool use_callchain;
+
+ if (evsel && !symbol_conf.show_ref_callgraph)
+ use_callchain = evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN;
+ else
+ use_callchain = symbol_conf.use_callchain;
min_callchain_hits = hists->stats.total_period * (callchain_param.min_percent / 100);
@@ -1147,7 +1165,7 @@ void hists__output_resort(struct hists *hists, struct ui_progress *prog)
n = rb_entry(next, struct hist_entry, rb_node_in);
next = rb_next(&n->rb_node_in);
- __hists__insert_output_entry(&hists->entries, n, min_callchain_hits);
+ __hists__insert_output_entry(&hists->entries, n, min_callchain_hits, use_callchain);
hists__inc_stats(hists, n);
if (!n->filtered)
@@ -1414,6 +1432,39 @@ int hists__link(struct hists *leader, struct hists *other)
return 0;
}
+void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
+ struct perf_sample *sample, bool nonany_branch_mode)
+{
+ struct branch_info *bi;
+
+ /* If we have branch cycles always annotate them. */
+ if (bs && bs->nr && bs->entries[0].flags.cycles) {
+ int i;
+
+ bi = sample__resolve_bstack(sample, al);
+ if (bi) {
+ struct addr_map_symbol *prev = NULL;
+
+ /*
+ * Ignore errors, still want to process the
+ * other entries.
+ *
+ * For non standard branch modes always
+ * force no IPC (prev == NULL)
+ *
+ * Note that perf stores branches reversed from
+ * program order!
+ */
+ for (i = bs->nr - 1; i >= 0; i--) {
+ addr_map_symbol__account_cycles(&bi[i].from,
+ nonany_branch_mode ? NULL : prev,
+ bi[i].flags.cycles);
+ prev = &bi[i].to;
+ }
+ free(bi);
+ }
+ }
+}
size_t perf_evlist__fprintf_nr_events(struct perf_evlist *evlist, FILE *fp)
{
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 5ed8d9c22981..de6d58e7f0d5 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -30,6 +30,7 @@ enum hist_column {
HISTC_PARENT,
HISTC_CPU,
HISTC_SRCLINE,
+ HISTC_SRCFILE,
HISTC_MISPREDICT,
HISTC_IN_TX,
HISTC_ABORT,
@@ -47,6 +48,7 @@ enum hist_column {
HISTC_MEM_SNOOP,
HISTC_MEM_DCACHELINE,
HISTC_TRANSACTION,
+ HISTC_CYCLES,
HISTC_NR_COLS, /* Last entry */
};
@@ -311,7 +313,7 @@ int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
struct hist_browser_timer *hbt,
float min_pcnt,
- struct perf_session_env *env);
+ struct perf_env *env);
int script_browse(const char *script_opt);
#else
static inline
@@ -319,7 +321,7 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
const char *help __maybe_unused,
struct hist_browser_timer *hbt __maybe_unused,
float min_pcnt __maybe_unused,
- struct perf_session_env *env __maybe_unused)
+ struct perf_env *env __maybe_unused)
{
return 0;
}
@@ -349,6 +351,9 @@ static inline int script_browse(const char *script_opt __maybe_unused)
unsigned int hists__sort_list_width(struct hists *hists);
+void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
+ struct perf_sample *sample, bool nonany_branch_mode);
+
struct option;
int parse_filter_percentage(const struct option *opt __maybe_unused,
const char *arg, int unset __maybe_unused);
diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c
new file mode 100644
index 000000000000..ea768625ab5b
--- /dev/null
+++ b/tools/perf/util/intel-bts.c
@@ -0,0 +1,933 @@
+/*
+ * intel-bts.c: Intel Processor Trace support
+ * Copyright (c) 2013-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <endian.h>
+#include <byteswap.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/log2.h>
+
+#include "cpumap.h"
+#include "color.h"
+#include "evsel.h"
+#include "evlist.h"
+#include "machine.h"
+#include "session.h"
+#include "util.h"
+#include "thread.h"
+#include "thread-stack.h"
+#include "debug.h"
+#include "tsc.h"
+#include "auxtrace.h"
+#include "intel-pt-decoder/intel-pt-insn-decoder.h"
+#include "intel-bts.h"
+
+#define MAX_TIMESTAMP (~0ULL)
+
+#define INTEL_BTS_ERR_NOINSN 5
+#define INTEL_BTS_ERR_LOST 9
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define le64_to_cpu bswap_64
+#else
+#define le64_to_cpu
+#endif
+
+struct intel_bts {
+ struct auxtrace auxtrace;
+ struct auxtrace_queues queues;
+ struct auxtrace_heap heap;
+ u32 auxtrace_type;
+ struct perf_session *session;
+ struct machine *machine;
+ bool sampling_mode;
+ bool snapshot_mode;
+ bool data_queued;
+ u32 pmu_type;
+ struct perf_tsc_conversion tc;
+ bool cap_user_time_zero;
+ struct itrace_synth_opts synth_opts;
+ bool sample_branches;
+ u32 branches_filter;
+ u64 branches_sample_type;
+ u64 branches_id;
+ size_t branches_event_size;
+ bool synth_needs_swap;
+};
+
+struct intel_bts_queue {
+ struct intel_bts *bts;
+ unsigned int queue_nr;
+ struct auxtrace_buffer *buffer;
+ bool on_heap;
+ bool done;
+ pid_t pid;
+ pid_t tid;
+ int cpu;
+ u64 time;
+ struct intel_pt_insn intel_pt_insn;
+ u32 sample_flags;
+};
+
+struct branch {
+ u64 from;
+ u64 to;
+ u64 misc;
+};
+
+static void intel_bts_dump(struct intel_bts *bts __maybe_unused,
+ unsigned char *buf, size_t len)
+{
+ struct branch *branch;
+ size_t i, pos = 0, br_sz = sizeof(struct branch), sz;
+ const char *color = PERF_COLOR_BLUE;
+
+ color_fprintf(stdout, color,
+ ". ... Intel BTS data: size %zu bytes\n",
+ len);
+
+ while (len) {
+ if (len >= br_sz)
+ sz = br_sz;
+ else
+ sz = len;
+ printf(".");
+ color_fprintf(stdout, color, " %08x: ", pos);
+ for (i = 0; i < sz; i++)
+ color_fprintf(stdout, color, " %02x", buf[i]);
+ for (; i < br_sz; i++)
+ color_fprintf(stdout, color, " ");
+ if (len >= br_sz) {
+ branch = (struct branch *)buf;
+ color_fprintf(stdout, color, " %"PRIx64" -> %"PRIx64" %s\n",
+ le64_to_cpu(branch->from),
+ le64_to_cpu(branch->to),
+ le64_to_cpu(branch->misc) & 0x10 ?
+ "pred" : "miss");
+ } else {
+ color_fprintf(stdout, color, " Bad record!\n");
+ }
+ pos += sz;
+ buf += sz;
+ len -= sz;
+ }
+}
+
+static void intel_bts_dump_event(struct intel_bts *bts, unsigned char *buf,
+ size_t len)
+{
+ printf(".\n");
+ intel_bts_dump(bts, buf, len);
+}
+
+static int intel_bts_lost(struct intel_bts *bts, struct perf_sample *sample)
+{
+ union perf_event event;
+ int err;
+
+ auxtrace_synth_error(&event.auxtrace_error, PERF_AUXTRACE_ERROR_ITRACE,
+ INTEL_BTS_ERR_LOST, sample->cpu, sample->pid,
+ sample->tid, 0, "Lost trace data");
+
+ err = perf_session__deliver_synth_event(bts->session, &event, NULL);
+ if (err)
+ pr_err("Intel BTS: failed to deliver error event, error %d\n",
+ err);
+
+ return err;
+}
+
+static struct intel_bts_queue *intel_bts_alloc_queue(struct intel_bts *bts,
+ unsigned int queue_nr)
+{
+ struct intel_bts_queue *btsq;
+
+ btsq = zalloc(sizeof(struct intel_bts_queue));
+ if (!btsq)
+ return NULL;
+
+ btsq->bts = bts;
+ btsq->queue_nr = queue_nr;
+ btsq->pid = -1;
+ btsq->tid = -1;
+ btsq->cpu = -1;
+
+ return btsq;
+}
+
+static int intel_bts_setup_queue(struct intel_bts *bts,
+ struct auxtrace_queue *queue,
+ unsigned int queue_nr)
+{
+ struct intel_bts_queue *btsq = queue->priv;
+
+ if (list_empty(&queue->head))
+ return 0;
+
+ if (!btsq) {
+ btsq = intel_bts_alloc_queue(bts, queue_nr);
+ if (!btsq)
+ return -ENOMEM;
+ queue->priv = btsq;
+
+ if (queue->cpu != -1)
+ btsq->cpu = queue->cpu;
+ btsq->tid = queue->tid;
+ }
+
+ if (bts->sampling_mode)
+ return 0;
+
+ if (!btsq->on_heap && !btsq->buffer) {
+ int ret;
+
+ btsq->buffer = auxtrace_buffer__next(queue, NULL);
+ if (!btsq->buffer)
+ return 0;
+
+ ret = auxtrace_heap__add(&bts->heap, queue_nr,
+ btsq->buffer->reference);
+ if (ret)
+ return ret;
+ btsq->on_heap = true;
+ }
+
+ return 0;
+}
+
+static int intel_bts_setup_queues(struct intel_bts *bts)
+{
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < bts->queues.nr_queues; i++) {
+ ret = intel_bts_setup_queue(bts, &bts->queues.queue_array[i],
+ i);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static inline int intel_bts_update_queues(struct intel_bts *bts)
+{
+ if (bts->queues.new_data) {
+ bts->queues.new_data = false;
+ return intel_bts_setup_queues(bts);
+ }
+ return 0;
+}
+
+static unsigned char *intel_bts_find_overlap(unsigned char *buf_a, size_t len_a,
+ unsigned char *buf_b, size_t len_b)
+{
+ size_t offs, len;
+
+ if (len_a > len_b)
+ offs = len_a - len_b;
+ else
+ offs = 0;
+
+ for (; offs < len_a; offs += sizeof(struct branch)) {
+ len = len_a - offs;
+ if (!memcmp(buf_a + offs, buf_b, len))
+ return buf_b + len;
+ }
+
+ return buf_b;
+}
+
+static int intel_bts_do_fix_overlap(struct auxtrace_queue *queue,
+ struct auxtrace_buffer *b)
+{
+ struct auxtrace_buffer *a;
+ void *start;
+
+ if (b->list.prev == &queue->head)
+ return 0;
+ a = list_entry(b->list.prev, struct auxtrace_buffer, list);
+ start = intel_bts_find_overlap(a->data, a->size, b->data, b->size);
+ if (!start)
+ return -EINVAL;
+ b->use_size = b->data + b->size - start;
+ b->use_data = start;
+ return 0;
+}
+
+static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq,
+ struct branch *branch)
+{
+ int ret;
+ struct intel_bts *bts = btsq->bts;
+ union perf_event event;
+ struct perf_sample sample = { .ip = 0, };
+
+ event.sample.header.type = PERF_RECORD_SAMPLE;
+ event.sample.header.misc = PERF_RECORD_MISC_USER;
+ event.sample.header.size = sizeof(struct perf_event_header);
+
+ sample.ip = le64_to_cpu(branch->from);
+ sample.pid = btsq->pid;
+ sample.tid = btsq->tid;
+ sample.addr = le64_to_cpu(branch->to);
+ sample.id = btsq->bts->branches_id;
+ sample.stream_id = btsq->bts->branches_id;
+ sample.period = 1;
+ sample.cpu = btsq->cpu;
+ sample.flags = btsq->sample_flags;
+ sample.insn_len = btsq->intel_pt_insn.length;
+
+ if (bts->synth_opts.inject) {
+ event.sample.header.size = bts->branches_event_size;
+ ret = perf_event__synthesize_sample(&event,
+ bts->branches_sample_type,
+ 0, &sample,
+ bts->synth_needs_swap);
+ if (ret)
+ return ret;
+ }
+
+ ret = perf_session__deliver_synth_event(bts->session, &event, &sample);
+ if (ret)
+ pr_err("Intel BTS: failed to deliver branch event, error %d\n",
+ ret);
+
+ return ret;
+}
+
+static int intel_bts_get_next_insn(struct intel_bts_queue *btsq, u64 ip)
+{
+ struct machine *machine = btsq->bts->machine;
+ struct thread *thread;
+ struct addr_location al;
+ unsigned char buf[1024];
+ size_t bufsz;
+ ssize_t len;
+ int x86_64;
+ uint8_t cpumode;
+ int err = -1;
+
+ bufsz = intel_pt_insn_max_size();
+
+ if (machine__kernel_ip(machine, ip))
+ cpumode = PERF_RECORD_MISC_KERNEL;
+ else
+ cpumode = PERF_RECORD_MISC_USER;
+
+ thread = machine__find_thread(machine, -1, btsq->tid);
+ if (!thread)
+ return -1;
+
+ thread__find_addr_map(thread, cpumode, MAP__FUNCTION, ip, &al);
+ if (!al.map || !al.map->dso)
+ goto out_put;
+
+ len = dso__data_read_addr(al.map->dso, al.map, machine, ip, buf, bufsz);
+ if (len <= 0)
+ goto out_put;
+
+ /* Load maps to ensure dso->is_64_bit has been updated */
+ map__load(al.map, machine->symbol_filter);
+
+ x86_64 = al.map->dso->is_64_bit;
+
+ if (intel_pt_get_insn(buf, len, x86_64, &btsq->intel_pt_insn))
+ goto out_put;
+
+ err = 0;
+out_put:
+ thread__put(thread);
+ return err;
+}
+
+static int intel_bts_synth_error(struct intel_bts *bts, int cpu, pid_t pid,
+ pid_t tid, u64 ip)
+{
+ union perf_event event;
+ int err;
+
+ auxtrace_synth_error(&event.auxtrace_error, PERF_AUXTRACE_ERROR_ITRACE,
+ INTEL_BTS_ERR_NOINSN, cpu, pid, tid, ip,
+ "Failed to get instruction");
+
+ err = perf_session__deliver_synth_event(bts->session, &event, NULL);
+ if (err)
+ pr_err("Intel BTS: failed to deliver error event, error %d\n",
+ err);
+
+ return err;
+}
+
+static int intel_bts_get_branch_type(struct intel_bts_queue *btsq,
+ struct branch *branch)
+{
+ int err;
+
+ if (!branch->from) {
+ if (branch->to)
+ btsq->sample_flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_TRACE_BEGIN;
+ else
+ btsq->sample_flags = 0;
+ btsq->intel_pt_insn.length = 0;
+ } else if (!branch->to) {
+ btsq->sample_flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_TRACE_END;
+ btsq->intel_pt_insn.length = 0;
+ } else {
+ err = intel_bts_get_next_insn(btsq, branch->from);
+ if (err) {
+ btsq->sample_flags = 0;
+ btsq->intel_pt_insn.length = 0;
+ if (!btsq->bts->synth_opts.errors)
+ return 0;
+ err = intel_bts_synth_error(btsq->bts, btsq->cpu,
+ btsq->pid, btsq->tid,
+ branch->from);
+ return err;
+ }
+ btsq->sample_flags = intel_pt_insn_type(btsq->intel_pt_insn.op);
+ /* Check for an async branch into the kernel */
+ if (!machine__kernel_ip(btsq->bts->machine, branch->from) &&
+ machine__kernel_ip(btsq->bts->machine, branch->to) &&
+ btsq->sample_flags != (PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_SYSCALLRET))
+ btsq->sample_flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_INTERRUPT;
+ }
+
+ return 0;
+}
+
+static int intel_bts_process_buffer(struct intel_bts_queue *btsq,
+ struct auxtrace_buffer *buffer)
+{
+ struct branch *branch;
+ size_t sz, bsz = sizeof(struct branch);
+ u32 filter = btsq->bts->branches_filter;
+ int err = 0;
+
+ if (buffer->use_data) {
+ sz = buffer->use_size;
+ branch = buffer->use_data;
+ } else {
+ sz = buffer->size;
+ branch = buffer->data;
+ }
+
+ if (!btsq->bts->sample_branches)
+ return 0;
+
+ for (; sz > bsz; branch += 1, sz -= bsz) {
+ if (!branch->from && !branch->to)
+ continue;
+ intel_bts_get_branch_type(btsq, branch);
+ if (filter && !(filter & btsq->sample_flags))
+ continue;
+ err = intel_bts_synth_branch_sample(btsq, branch);
+ if (err)
+ break;
+ }
+ return err;
+}
+
+static int intel_bts_process_queue(struct intel_bts_queue *btsq, u64 *timestamp)
+{
+ struct auxtrace_buffer *buffer = btsq->buffer, *old_buffer = buffer;
+ struct auxtrace_queue *queue;
+ struct thread *thread;
+ int err;
+
+ if (btsq->done)
+ return 1;
+
+ if (btsq->pid == -1) {
+ thread = machine__find_thread(btsq->bts->machine, -1,
+ btsq->tid);
+ if (thread)
+ btsq->pid = thread->pid_;
+ } else {
+ thread = machine__findnew_thread(btsq->bts->machine, btsq->pid,
+ btsq->tid);
+ }
+
+ queue = &btsq->bts->queues.queue_array[btsq->queue_nr];
+
+ if (!buffer)
+ buffer = auxtrace_buffer__next(queue, NULL);
+
+ if (!buffer) {
+ if (!btsq->bts->sampling_mode)
+ btsq->done = 1;
+ err = 1;
+ goto out_put;
+ }
+
+ /* Currently there is no support for split buffers */
+ if (buffer->consecutive) {
+ err = -EINVAL;
+ goto out_put;
+ }
+
+ if (!buffer->data) {
+ int fd = perf_data_file__fd(btsq->bts->session->file);
+
+ buffer->data = auxtrace_buffer__get_data(buffer, fd);
+ if (!buffer->data) {
+ err = -ENOMEM;
+ goto out_put;
+ }
+ }
+
+ if (btsq->bts->snapshot_mode && !buffer->consecutive &&
+ intel_bts_do_fix_overlap(queue, buffer)) {
+ err = -ENOMEM;
+ goto out_put;
+ }
+
+ if (!btsq->bts->synth_opts.callchain && thread &&
+ (!old_buffer || btsq->bts->sampling_mode ||
+ (btsq->bts->snapshot_mode && !buffer->consecutive)))
+ thread_stack__set_trace_nr(thread, buffer->buffer_nr + 1);
+
+ err = intel_bts_process_buffer(btsq, buffer);
+
+ auxtrace_buffer__drop_data(buffer);
+
+ btsq->buffer = auxtrace_buffer__next(queue, buffer);
+ if (btsq->buffer) {
+ if (timestamp)
+ *timestamp = btsq->buffer->reference;
+ } else {
+ if (!btsq->bts->sampling_mode)
+ btsq->done = 1;
+ }
+out_put:
+ thread__put(thread);
+ return err;
+}
+
+static int intel_bts_flush_queue(struct intel_bts_queue *btsq)
+{
+ u64 ts = 0;
+ int ret;
+
+ while (1) {
+ ret = intel_bts_process_queue(btsq, &ts);
+ if (ret < 0)
+ return ret;
+ if (ret)
+ break;
+ }
+ return 0;
+}
+
+static int intel_bts_process_tid_exit(struct intel_bts *bts, pid_t tid)
+{
+ struct auxtrace_queues *queues = &bts->queues;
+ unsigned int i;
+
+ for (i = 0; i < queues->nr_queues; i++) {
+ struct auxtrace_queue *queue = &bts->queues.queue_array[i];
+ struct intel_bts_queue *btsq = queue->priv;
+
+ if (btsq && btsq->tid == tid)
+ return intel_bts_flush_queue(btsq);
+ }
+ return 0;
+}
+
+static int intel_bts_process_queues(struct intel_bts *bts, u64 timestamp)
+{
+ while (1) {
+ unsigned int queue_nr;
+ struct auxtrace_queue *queue;
+ struct intel_bts_queue *btsq;
+ u64 ts = 0;
+ int ret;
+
+ if (!bts->heap.heap_cnt)
+ return 0;
+
+ if (bts->heap.heap_array[0].ordinal > timestamp)
+ return 0;
+
+ queue_nr = bts->heap.heap_array[0].queue_nr;
+ queue = &bts->queues.queue_array[queue_nr];
+ btsq = queue->priv;
+
+ auxtrace_heap__pop(&bts->heap);
+
+ ret = intel_bts_process_queue(btsq, &ts);
+ if (ret < 0) {
+ auxtrace_heap__add(&bts->heap, queue_nr, ts);
+ return ret;
+ }
+
+ if (!ret) {
+ ret = auxtrace_heap__add(&bts->heap, queue_nr, ts);
+ if (ret < 0)
+ return ret;
+ } else {
+ btsq->on_heap = false;
+ }
+ }
+
+ return 0;
+}
+
+static int intel_bts_process_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+ u64 timestamp;
+ int err;
+
+ if (dump_trace)
+ return 0;
+
+ if (!tool->ordered_events) {
+ pr_err("Intel BTS requires ordered events\n");
+ return -EINVAL;
+ }
+
+ if (sample->time && sample->time != (u64)-1)
+ timestamp = perf_time_to_tsc(sample->time, &bts->tc);
+ else
+ timestamp = 0;
+
+ err = intel_bts_update_queues(bts);
+ if (err)
+ return err;
+
+ err = intel_bts_process_queues(bts, timestamp);
+ if (err)
+ return err;
+ if (event->header.type == PERF_RECORD_EXIT) {
+ err = intel_bts_process_tid_exit(bts, event->comm.tid);
+ if (err)
+ return err;
+ }
+
+ if (event->header.type == PERF_RECORD_AUX &&
+ (event->aux.flags & PERF_AUX_FLAG_TRUNCATED) &&
+ bts->synth_opts.errors)
+ err = intel_bts_lost(bts, sample);
+
+ return err;
+}
+
+static int intel_bts_process_auxtrace_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_tool *tool __maybe_unused)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+
+ if (bts->sampling_mode)
+ return 0;
+
+ if (!bts->data_queued) {
+ struct auxtrace_buffer *buffer;
+ off_t data_offset;
+ int fd = perf_data_file__fd(session->file);
+ int err;
+
+ if (perf_data_file__is_pipe(session->file)) {
+ data_offset = 0;
+ } else {
+ data_offset = lseek(fd, 0, SEEK_CUR);
+ if (data_offset == -1)
+ return -errno;
+ }
+
+ err = auxtrace_queues__add_event(&bts->queues, session, event,
+ data_offset, &buffer);
+ if (err)
+ return err;
+
+ /* Dump here now we have copied a piped trace out of the pipe */
+ if (dump_trace) {
+ if (auxtrace_buffer__get_data(buffer, fd)) {
+ intel_bts_dump_event(bts, buffer->data,
+ buffer->size);
+ auxtrace_buffer__put_data(buffer);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int intel_bts_flush(struct perf_session *session __maybe_unused,
+ struct perf_tool *tool __maybe_unused)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+ int ret;
+
+ if (dump_trace || bts->sampling_mode)
+ return 0;
+
+ if (!tool->ordered_events)
+ return -EINVAL;
+
+ ret = intel_bts_update_queues(bts);
+ if (ret < 0)
+ return ret;
+
+ return intel_bts_process_queues(bts, MAX_TIMESTAMP);
+}
+
+static void intel_bts_free_queue(void *priv)
+{
+ struct intel_bts_queue *btsq = priv;
+
+ if (!btsq)
+ return;
+ free(btsq);
+}
+
+static void intel_bts_free_events(struct perf_session *session)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+ struct auxtrace_queues *queues = &bts->queues;
+ unsigned int i;
+
+ for (i = 0; i < queues->nr_queues; i++) {
+ intel_bts_free_queue(queues->queue_array[i].priv);
+ queues->queue_array[i].priv = NULL;
+ }
+ auxtrace_queues__free(queues);
+}
+
+static void intel_bts_free(struct perf_session *session)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+
+ auxtrace_heap__free(&bts->heap);
+ intel_bts_free_events(session);
+ session->auxtrace = NULL;
+ free(bts);
+}
+
+struct intel_bts_synth {
+ struct perf_tool dummy_tool;
+ struct perf_session *session;
+};
+
+static int intel_bts_event_synth(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct intel_bts_synth *intel_bts_synth =
+ container_of(tool, struct intel_bts_synth, dummy_tool);
+
+ return perf_session__deliver_synth_event(intel_bts_synth->session,
+ event, NULL);
+}
+
+static int intel_bts_synth_event(struct perf_session *session,
+ struct perf_event_attr *attr, u64 id)
+{
+ struct intel_bts_synth intel_bts_synth;
+
+ memset(&intel_bts_synth, 0, sizeof(struct intel_bts_synth));
+ intel_bts_synth.session = session;
+
+ return perf_event__synthesize_attr(&intel_bts_synth.dummy_tool, attr, 1,
+ &id, intel_bts_event_synth);
+}
+
+static int intel_bts_synth_events(struct intel_bts *bts,
+ struct perf_session *session)
+{
+ struct perf_evlist *evlist = session->evlist;
+ struct perf_evsel *evsel;
+ struct perf_event_attr attr;
+ bool found = false;
+ u64 id;
+ int err;
+
+ evlist__for_each(evlist, evsel) {
+ if (evsel->attr.type == bts->pmu_type && evsel->ids) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ pr_debug("There are no selected events with Intel BTS data\n");
+ return 0;
+ }
+
+ memset(&attr, 0, sizeof(struct perf_event_attr));
+ attr.size = sizeof(struct perf_event_attr);
+ attr.type = PERF_TYPE_HARDWARE;
+ attr.sample_type = evsel->attr.sample_type & PERF_SAMPLE_MASK;
+ attr.sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID |
+ PERF_SAMPLE_PERIOD;
+ attr.sample_type &= ~(u64)PERF_SAMPLE_TIME;
+ attr.sample_type &= ~(u64)PERF_SAMPLE_CPU;
+ attr.exclude_user = evsel->attr.exclude_user;
+ attr.exclude_kernel = evsel->attr.exclude_kernel;
+ attr.exclude_hv = evsel->attr.exclude_hv;
+ attr.exclude_host = evsel->attr.exclude_host;
+ attr.exclude_guest = evsel->attr.exclude_guest;
+ attr.sample_id_all = evsel->attr.sample_id_all;
+ attr.read_format = evsel->attr.read_format;
+
+ id = evsel->id[0] + 1000000000;
+ if (!id)
+ id = 1;
+
+ if (bts->synth_opts.branches) {
+ attr.config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS;
+ attr.sample_period = 1;
+ attr.sample_type |= PERF_SAMPLE_ADDR;
+ pr_debug("Synthesizing 'branches' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
+ id, (u64)attr.sample_type);
+ err = intel_bts_synth_event(session, &attr, id);
+ if (err) {
+ pr_err("%s: failed to synthesize 'branches' event type\n",
+ __func__);
+ return err;
+ }
+ bts->sample_branches = true;
+ bts->branches_sample_type = attr.sample_type;
+ bts->branches_id = id;
+ /*
+ * We only use sample types from PERF_SAMPLE_MASK so we can use
+ * __perf_evsel__sample_size() here.
+ */
+ bts->branches_event_size = sizeof(struct sample_event) +
+ __perf_evsel__sample_size(attr.sample_type);
+ }
+
+ bts->synth_needs_swap = evsel->needs_swap;
+
+ return 0;
+}
+
+static const char * const intel_bts_info_fmts[] = {
+ [INTEL_BTS_PMU_TYPE] = " PMU Type %"PRId64"\n",
+ [INTEL_BTS_TIME_SHIFT] = " Time Shift %"PRIu64"\n",
+ [INTEL_BTS_TIME_MULT] = " Time Muliplier %"PRIu64"\n",
+ [INTEL_BTS_TIME_ZERO] = " Time Zero %"PRIu64"\n",
+ [INTEL_BTS_CAP_USER_TIME_ZERO] = " Cap Time Zero %"PRId64"\n",
+ [INTEL_BTS_SNAPSHOT_MODE] = " Snapshot mode %"PRId64"\n",
+};
+
+static void intel_bts_print_info(u64 *arr, int start, int finish)
+{
+ int i;
+
+ if (!dump_trace)
+ return;
+
+ for (i = start; i <= finish; i++)
+ fprintf(stdout, intel_bts_info_fmts[i], arr[i]);
+}
+
+u64 intel_bts_auxtrace_info_priv[INTEL_BTS_AUXTRACE_PRIV_SIZE];
+
+int intel_bts_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session)
+{
+ struct auxtrace_info_event *auxtrace_info = &event->auxtrace_info;
+ size_t min_sz = sizeof(u64) * INTEL_BTS_SNAPSHOT_MODE;
+ struct intel_bts *bts;
+ int err;
+
+ if (auxtrace_info->header.size < sizeof(struct auxtrace_info_event) +
+ min_sz)
+ return -EINVAL;
+
+ bts = zalloc(sizeof(struct intel_bts));
+ if (!bts)
+ return -ENOMEM;
+
+ err = auxtrace_queues__init(&bts->queues);
+ if (err)
+ goto err_free;
+
+ bts->session = session;
+ bts->machine = &session->machines.host; /* No kvm support */
+ bts->auxtrace_type = auxtrace_info->type;
+ bts->pmu_type = auxtrace_info->priv[INTEL_BTS_PMU_TYPE];
+ bts->tc.time_shift = auxtrace_info->priv[INTEL_BTS_TIME_SHIFT];
+ bts->tc.time_mult = auxtrace_info->priv[INTEL_BTS_TIME_MULT];
+ bts->tc.time_zero = auxtrace_info->priv[INTEL_BTS_TIME_ZERO];
+ bts->cap_user_time_zero =
+ auxtrace_info->priv[INTEL_BTS_CAP_USER_TIME_ZERO];
+ bts->snapshot_mode = auxtrace_info->priv[INTEL_BTS_SNAPSHOT_MODE];
+
+ bts->sampling_mode = false;
+
+ bts->auxtrace.process_event = intel_bts_process_event;
+ bts->auxtrace.process_auxtrace_event = intel_bts_process_auxtrace_event;
+ bts->auxtrace.flush_events = intel_bts_flush;
+ bts->auxtrace.free_events = intel_bts_free_events;
+ bts->auxtrace.free = intel_bts_free;
+ session->auxtrace = &bts->auxtrace;
+
+ intel_bts_print_info(&auxtrace_info->priv[0], INTEL_BTS_PMU_TYPE,
+ INTEL_BTS_SNAPSHOT_MODE);
+
+ if (dump_trace)
+ return 0;
+
+ if (session->itrace_synth_opts && session->itrace_synth_opts->set)
+ bts->synth_opts = *session->itrace_synth_opts;
+ else
+ itrace_synth_opts__set_default(&bts->synth_opts);
+
+ if (bts->synth_opts.calls)
+ bts->branches_filter |= PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_TRACE_END;
+ if (bts->synth_opts.returns)
+ bts->branches_filter |= PERF_IP_FLAG_RETURN |
+ PERF_IP_FLAG_TRACE_BEGIN;
+
+ err = intel_bts_synth_events(bts, session);
+ if (err)
+ goto err_free_queues;
+
+ err = auxtrace_queues__process_index(&bts->queues, session);
+ if (err)
+ goto err_free_queues;
+
+ if (bts->queues.populated)
+ bts->data_queued = true;
+
+ return 0;
+
+err_free_queues:
+ auxtrace_queues__free(&bts->queues);
+ session->auxtrace = NULL;
+err_free:
+ free(bts);
+ return err;
+}
diff --git a/tools/perf/util/intel-bts.h b/tools/perf/util/intel-bts.h
new file mode 100644
index 000000000000..ca65e21b3e83
--- /dev/null
+++ b/tools/perf/util/intel-bts.h
@@ -0,0 +1,43 @@
+/*
+ * intel-bts.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__PERF_INTEL_BTS_H__
+#define INCLUDE__PERF_INTEL_BTS_H__
+
+#define INTEL_BTS_PMU_NAME "intel_bts"
+
+enum {
+ INTEL_BTS_PMU_TYPE,
+ INTEL_BTS_TIME_SHIFT,
+ INTEL_BTS_TIME_MULT,
+ INTEL_BTS_TIME_ZERO,
+ INTEL_BTS_CAP_USER_TIME_ZERO,
+ INTEL_BTS_SNAPSHOT_MODE,
+ INTEL_BTS_AUXTRACE_PRIV_MAX,
+};
+
+#define INTEL_BTS_AUXTRACE_PRIV_SIZE (INTEL_BTS_AUXTRACE_PRIV_MAX * sizeof(u64))
+
+struct auxtrace_record;
+struct perf_tool;
+union perf_event;
+struct perf_session;
+
+struct auxtrace_record *intel_bts_recording_init(int *err);
+
+int intel_bts_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session);
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/Build b/tools/perf/util/intel-pt-decoder/Build
new file mode 100644
index 000000000000..240730d682c1
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/Build
@@ -0,0 +1,11 @@
+libperf-$(CONFIG_AUXTRACE) += intel-pt-pkt-decoder.o intel-pt-insn-decoder.o intel-pt-log.o intel-pt-decoder.o
+
+inat_tables_script = util/intel-pt-decoder/gen-insn-attr-x86.awk
+inat_tables_maps = util/intel-pt-decoder/x86-opcode-map.txt
+
+$(OUTPUT)util/intel-pt-decoder/inat-tables.c: $(inat_tables_script) $(inat_tables_maps)
+ @$(call echo-cmd,gen)$(AWK) -f $(inat_tables_script) $(inat_tables_maps) > $@ || rm -f $@
+
+$(OUTPUT)util/intel-pt-decoder/intel-pt-insn-decoder.o: util/intel-pt-decoder/inat.c $(OUTPUT)util/intel-pt-decoder/inat-tables.c
+
+CFLAGS_intel-pt-insn-decoder.o += -I$(OUTPUT)util/intel-pt-decoder -Wno-override-init
diff --git a/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk b/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
new file mode 100644
index 000000000000..517567347aac
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
@@ -0,0 +1,386 @@
+#!/bin/awk -f
+# gen-insn-attr-x86.awk: Instruction attribute table generator
+# Written by Masami Hiramatsu <mhiramat@redhat.com>
+#
+# Usage: awk -f gen-insn-attr-x86.awk x86-opcode-map.txt > inat-tables.c
+
+# Awk implementation sanity check
+function check_awk_implement() {
+ if (sprintf("%x", 0) != "0")
+ return "Your awk has a printf-format problem."
+ return ""
+}
+
+# Clear working vars
+function clear_vars() {
+ delete table
+ delete lptable2
+ delete lptable1
+ delete lptable3
+ eid = -1 # escape id
+ gid = -1 # group id
+ aid = -1 # AVX id
+ tname = ""
+}
+
+BEGIN {
+ # Implementation error checking
+ awkchecked = check_awk_implement()
+ if (awkchecked != "") {
+ print "Error: " awkchecked > "/dev/stderr"
+ print "Please try to use gawk." > "/dev/stderr"
+ exit 1
+ }
+
+ # Setup generating tables
+ print "/* x86 opcode map generated from x86-opcode-map.txt */"
+ print "/* Do not change this code. */\n"
+ ggid = 1
+ geid = 1
+ gaid = 0
+ delete etable
+ delete gtable
+ delete atable
+
+ opnd_expr = "^[A-Za-z/]"
+ ext_expr = "^\\("
+ sep_expr = "^\\|$"
+ group_expr = "^Grp[0-9A-Za-z]+"
+
+ imm_expr = "^[IJAOL][a-z]"
+ imm_flag["Ib"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
+ imm_flag["Jb"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
+ imm_flag["Iw"] = "INAT_MAKE_IMM(INAT_IMM_WORD)"
+ imm_flag["Id"] = "INAT_MAKE_IMM(INAT_IMM_DWORD)"
+ imm_flag["Iq"] = "INAT_MAKE_IMM(INAT_IMM_QWORD)"
+ imm_flag["Ap"] = "INAT_MAKE_IMM(INAT_IMM_PTR)"
+ imm_flag["Iz"] = "INAT_MAKE_IMM(INAT_IMM_VWORD32)"
+ imm_flag["Jz"] = "INAT_MAKE_IMM(INAT_IMM_VWORD32)"
+ imm_flag["Iv"] = "INAT_MAKE_IMM(INAT_IMM_VWORD)"
+ imm_flag["Ob"] = "INAT_MOFFSET"
+ imm_flag["Ov"] = "INAT_MOFFSET"
+ imm_flag["Lx"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
+
+ modrm_expr = "^([CDEGMNPQRSUVW/][a-z]+|NTA|T[012])"
+ force64_expr = "\\([df]64\\)"
+ rex_expr = "^REX(\\.[XRWB]+)*"
+ fpu_expr = "^ESC" # TODO
+
+ lprefix1_expr = "\\((66|!F3)\\)"
+ lprefix2_expr = "\\(F3\\)"
+ lprefix3_expr = "\\((F2|!F3|66\\&F2)\\)"
+ lprefix_expr = "\\((66|F2|F3)\\)"
+ max_lprefix = 4
+
+ # All opcodes starting with lower-case 'v' or with (v1) superscript
+ # accepts VEX prefix
+ vexok_opcode_expr = "^v.*"
+ vexok_expr = "\\(v1\\)"
+ # All opcodes with (v) superscript supports *only* VEX prefix
+ vexonly_expr = "\\(v\\)"
+
+ prefix_expr = "\\(Prefix\\)"
+ prefix_num["Operand-Size"] = "INAT_PFX_OPNDSZ"
+ prefix_num["REPNE"] = "INAT_PFX_REPNE"
+ prefix_num["REP/REPE"] = "INAT_PFX_REPE"
+ prefix_num["XACQUIRE"] = "INAT_PFX_REPNE"
+ prefix_num["XRELEASE"] = "INAT_PFX_REPE"
+ prefix_num["LOCK"] = "INAT_PFX_LOCK"
+ prefix_num["SEG=CS"] = "INAT_PFX_CS"
+ prefix_num["SEG=DS"] = "INAT_PFX_DS"
+ prefix_num["SEG=ES"] = "INAT_PFX_ES"
+ prefix_num["SEG=FS"] = "INAT_PFX_FS"
+ prefix_num["SEG=GS"] = "INAT_PFX_GS"
+ prefix_num["SEG=SS"] = "INAT_PFX_SS"
+ prefix_num["Address-Size"] = "INAT_PFX_ADDRSZ"
+ prefix_num["VEX+1byte"] = "INAT_PFX_VEX2"
+ prefix_num["VEX+2byte"] = "INAT_PFX_VEX3"
+
+ clear_vars()
+}
+
+function semantic_error(msg) {
+ print "Semantic error at " NR ": " msg > "/dev/stderr"
+ exit 1
+}
+
+function debug(msg) {
+ print "DEBUG: " msg
+}
+
+function array_size(arr, i,c) {
+ c = 0
+ for (i in arr)
+ c++
+ return c
+}
+
+/^Table:/ {
+ print "/* " $0 " */"
+ if (tname != "")
+ semantic_error("Hit Table: before EndTable:.");
+}
+
+/^Referrer:/ {
+ if (NF != 1) {
+ # escape opcode table
+ ref = ""
+ for (i = 2; i <= NF; i++)
+ ref = ref $i
+ eid = escape[ref]
+ tname = sprintf("inat_escape_table_%d", eid)
+ }
+}
+
+/^AVXcode:/ {
+ if (NF != 1) {
+ # AVX/escape opcode table
+ aid = $2
+ if (gaid <= aid)
+ gaid = aid + 1
+ if (tname == "") # AVX only opcode table
+ tname = sprintf("inat_avx_table_%d", $2)
+ }
+ if (aid == -1 && eid == -1) # primary opcode table
+ tname = "inat_primary_table"
+}
+
+/^GrpTable:/ {
+ print "/* " $0 " */"
+ if (!($2 in group))
+ semantic_error("No group: " $2 )
+ gid = group[$2]
+ tname = "inat_group_table_" gid
+}
+
+function print_table(tbl,name,fmt,n)
+{
+ print "const insn_attr_t " name " = {"
+ for (i = 0; i < n; i++) {
+ id = sprintf(fmt, i)
+ if (tbl[id])
+ print " [" id "] = " tbl[id] ","
+ }
+ print "};"
+}
+
+/^EndTable/ {
+ if (gid != -1) {
+ # print group tables
+ if (array_size(table) != 0) {
+ print_table(table, tname "[INAT_GROUP_TABLE_SIZE]",
+ "0x%x", 8)
+ gtable[gid,0] = tname
+ }
+ if (array_size(lptable1) != 0) {
+ print_table(lptable1, tname "_1[INAT_GROUP_TABLE_SIZE]",
+ "0x%x", 8)
+ gtable[gid,1] = tname "_1"
+ }
+ if (array_size(lptable2) != 0) {
+ print_table(lptable2, tname "_2[INAT_GROUP_TABLE_SIZE]",
+ "0x%x", 8)
+ gtable[gid,2] = tname "_2"
+ }
+ if (array_size(lptable3) != 0) {
+ print_table(lptable3, tname "_3[INAT_GROUP_TABLE_SIZE]",
+ "0x%x", 8)
+ gtable[gid,3] = tname "_3"
+ }
+ } else {
+ # print primary/escaped tables
+ if (array_size(table) != 0) {
+ print_table(table, tname "[INAT_OPCODE_TABLE_SIZE]",
+ "0x%02x", 256)
+ etable[eid,0] = tname
+ if (aid >= 0)
+ atable[aid,0] = tname
+ }
+ if (array_size(lptable1) != 0) {
+ print_table(lptable1,tname "_1[INAT_OPCODE_TABLE_SIZE]",
+ "0x%02x", 256)
+ etable[eid,1] = tname "_1"
+ if (aid >= 0)
+ atable[aid,1] = tname "_1"
+ }
+ if (array_size(lptable2) != 0) {
+ print_table(lptable2,tname "_2[INAT_OPCODE_TABLE_SIZE]",
+ "0x%02x", 256)
+ etable[eid,2] = tname "_2"
+ if (aid >= 0)
+ atable[aid,2] = tname "_2"
+ }
+ if (array_size(lptable3) != 0) {
+ print_table(lptable3,tname "_3[INAT_OPCODE_TABLE_SIZE]",
+ "0x%02x", 256)
+ etable[eid,3] = tname "_3"
+ if (aid >= 0)
+ atable[aid,3] = tname "_3"
+ }
+ }
+ print ""
+ clear_vars()
+}
+
+function add_flags(old,new) {
+ if (old && new)
+ return old " | " new
+ else if (old)
+ return old
+ else
+ return new
+}
+
+# convert operands to flags.
+function convert_operands(count,opnd, i,j,imm,mod)
+{
+ imm = null
+ mod = null
+ for (j = 1; j <= count; j++) {
+ i = opnd[j]
+ if (match(i, imm_expr) == 1) {
+ if (!imm_flag[i])
+ semantic_error("Unknown imm opnd: " i)
+ if (imm) {
+ if (i != "Ib")
+ semantic_error("Second IMM error")
+ imm = add_flags(imm, "INAT_SCNDIMM")
+ } else
+ imm = imm_flag[i]
+ } else if (match(i, modrm_expr))
+ mod = "INAT_MODRM"
+ }
+ return add_flags(imm, mod)
+}
+
+/^[0-9a-f]+\:/ {
+ if (NR == 1)
+ next
+ # get index
+ idx = "0x" substr($1, 1, index($1,":") - 1)
+ if (idx in table)
+ semantic_error("Redefine " idx " in " tname)
+
+ # check if escaped opcode
+ if ("escape" == $2) {
+ if ($3 != "#")
+ semantic_error("No escaped name")
+ ref = ""
+ for (i = 4; i <= NF; i++)
+ ref = ref $i
+ if (ref in escape)
+ semantic_error("Redefine escape (" ref ")")
+ escape[ref] = geid
+ geid++
+ table[idx] = "INAT_MAKE_ESCAPE(" escape[ref] ")"
+ next
+ }
+
+ variant = null
+ # converts
+ i = 2
+ while (i <= NF) {
+ opcode = $(i++)
+ delete opnds
+ ext = null
+ flags = null
+ opnd = null
+ # parse one opcode
+ if (match($i, opnd_expr)) {
+ opnd = $i
+ count = split($(i++), opnds, ",")
+ flags = convert_operands(count, opnds)
+ }
+ if (match($i, ext_expr))
+ ext = $(i++)
+ if (match($i, sep_expr))
+ i++
+ else if (i < NF)
+ semantic_error($i " is not a separator")
+
+ # check if group opcode
+ if (match(opcode, group_expr)) {
+ if (!(opcode in group)) {
+ group[opcode] = ggid
+ ggid++
+ }
+ flags = add_flags(flags, "INAT_MAKE_GROUP(" group[opcode] ")")
+ }
+ # check force(or default) 64bit
+ if (match(ext, force64_expr))
+ flags = add_flags(flags, "INAT_FORCE64")
+
+ # check REX prefix
+ if (match(opcode, rex_expr))
+ flags = add_flags(flags, "INAT_MAKE_PREFIX(INAT_PFX_REX)")
+
+ # check coprocessor escape : TODO
+ if (match(opcode, fpu_expr))
+ flags = add_flags(flags, "INAT_MODRM")
+
+ # check VEX codes
+ if (match(ext, vexonly_expr))
+ flags = add_flags(flags, "INAT_VEXOK | INAT_VEXONLY")
+ else if (match(ext, vexok_expr) || match(opcode, vexok_opcode_expr))
+ flags = add_flags(flags, "INAT_VEXOK")
+
+ # check prefixes
+ if (match(ext, prefix_expr)) {
+ if (!prefix_num[opcode])
+ semantic_error("Unknown prefix: " opcode)
+ flags = add_flags(flags, "INAT_MAKE_PREFIX(" prefix_num[opcode] ")")
+ }
+ if (length(flags) == 0)
+ continue
+ # check if last prefix
+ if (match(ext, lprefix1_expr)) {
+ lptable1[idx] = add_flags(lptable1[idx],flags)
+ variant = "INAT_VARIANT"
+ }
+ if (match(ext, lprefix2_expr)) {
+ lptable2[idx] = add_flags(lptable2[idx],flags)
+ variant = "INAT_VARIANT"
+ }
+ if (match(ext, lprefix3_expr)) {
+ lptable3[idx] = add_flags(lptable3[idx],flags)
+ variant = "INAT_VARIANT"
+ }
+ if (!match(ext, lprefix_expr)){
+ table[idx] = add_flags(table[idx],flags)
+ }
+ }
+ if (variant)
+ table[idx] = add_flags(table[idx],variant)
+}
+
+END {
+ if (awkchecked != "")
+ exit 1
+ # print escape opcode map's array
+ print "/* Escape opcode map array */"
+ print "const insn_attr_t * const inat_escape_tables[INAT_ESC_MAX + 1]" \
+ "[INAT_LSTPFX_MAX + 1] = {"
+ for (i = 0; i < geid; i++)
+ for (j = 0; j < max_lprefix; j++)
+ if (etable[i,j])
+ print " ["i"]["j"] = "etable[i,j]","
+ print "};\n"
+ # print group opcode map's array
+ print "/* Group opcode map array */"
+ print "const insn_attr_t * const inat_group_tables[INAT_GRP_MAX + 1]"\
+ "[INAT_LSTPFX_MAX + 1] = {"
+ for (i = 0; i < ggid; i++)
+ for (j = 0; j < max_lprefix; j++)
+ if (gtable[i,j])
+ print " ["i"]["j"] = "gtable[i,j]","
+ print "};\n"
+ # print AVX opcode map's array
+ print "/* AVX opcode map array */"
+ print "const insn_attr_t * const inat_avx_tables[X86_VEX_M_MAX + 1]"\
+ "[INAT_LSTPFX_MAX + 1] = {"
+ for (i = 0; i < gaid; i++)
+ for (j = 0; j < max_lprefix; j++)
+ if (atable[i,j])
+ print " ["i"]["j"] = "atable[i,j]","
+ print "};"
+}
diff --git a/tools/perf/util/intel-pt-decoder/inat.c b/tools/perf/util/intel-pt-decoder/inat.c
new file mode 100644
index 000000000000..906d94aa0a24
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/inat.c
@@ -0,0 +1,96 @@
+/*
+ * x86 instruction attribute tables
+ *
+ * Written by Masami Hiramatsu <mhiramat@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+#include "insn.h"
+
+/* Attribute tables are generated from opcode map */
+#include "inat-tables.c"
+
+/* Attribute search APIs */
+insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode)
+{
+ return inat_primary_table[opcode];
+}
+
+int inat_get_last_prefix_id(insn_byte_t last_pfx)
+{
+ insn_attr_t lpfx_attr;
+
+ lpfx_attr = inat_get_opcode_attribute(last_pfx);
+ return inat_last_prefix_id(lpfx_attr);
+}
+
+insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, int lpfx_id,
+ insn_attr_t esc_attr)
+{
+ const insn_attr_t *table;
+ int n;
+
+ n = inat_escape_id(esc_attr);
+
+ table = inat_escape_tables[n][0];
+ if (!table)
+ return 0;
+ if (inat_has_variant(table[opcode]) && lpfx_id) {
+ table = inat_escape_tables[n][lpfx_id];
+ if (!table)
+ return 0;
+ }
+ return table[opcode];
+}
+
+insn_attr_t inat_get_group_attribute(insn_byte_t modrm, int lpfx_id,
+ insn_attr_t grp_attr)
+{
+ const insn_attr_t *table;
+ int n;
+
+ n = inat_group_id(grp_attr);
+
+ table = inat_group_tables[n][0];
+ if (!table)
+ return inat_group_common_attribute(grp_attr);
+ if (inat_has_variant(table[X86_MODRM_REG(modrm)]) && lpfx_id) {
+ table = inat_group_tables[n][lpfx_id];
+ if (!table)
+ return inat_group_common_attribute(grp_attr);
+ }
+ return table[X86_MODRM_REG(modrm)] |
+ inat_group_common_attribute(grp_attr);
+}
+
+insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, insn_byte_t vex_m,
+ insn_byte_t vex_p)
+{
+ const insn_attr_t *table;
+ if (vex_m > X86_VEX_M_MAX || vex_p > INAT_LSTPFX_MAX)
+ return 0;
+ /* At first, this checks the master table */
+ table = inat_avx_tables[vex_m][0];
+ if (!table)
+ return 0;
+ if (!inat_is_group(table[opcode]) && vex_p) {
+ /* If this is not a group, get attribute directly */
+ table = inat_avx_tables[vex_m][vex_p];
+ if (!table)
+ return 0;
+ }
+ return table[opcode];
+}
diff --git a/tools/perf/util/intel-pt-decoder/inat.h b/tools/perf/util/intel-pt-decoder/inat.h
new file mode 100644
index 000000000000..611645e903a8
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/inat.h
@@ -0,0 +1,221 @@
+#ifndef _ASM_X86_INAT_H
+#define _ASM_X86_INAT_H
+/*
+ * x86 instruction attributes
+ *
+ * Written by Masami Hiramatsu <mhiramat@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+#include "inat_types.h"
+
+/*
+ * Internal bits. Don't use bitmasks directly, because these bits are
+ * unstable. You should use checking functions.
+ */
+
+#define INAT_OPCODE_TABLE_SIZE 256
+#define INAT_GROUP_TABLE_SIZE 8
+
+/* Legacy last prefixes */
+#define INAT_PFX_OPNDSZ 1 /* 0x66 */ /* LPFX1 */
+#define INAT_PFX_REPE 2 /* 0xF3 */ /* LPFX2 */
+#define INAT_PFX_REPNE 3 /* 0xF2 */ /* LPFX3 */
+/* Other Legacy prefixes */
+#define INAT_PFX_LOCK 4 /* 0xF0 */
+#define INAT_PFX_CS 5 /* 0x2E */
+#define INAT_PFX_DS 6 /* 0x3E */
+#define INAT_PFX_ES 7 /* 0x26 */
+#define INAT_PFX_FS 8 /* 0x64 */
+#define INAT_PFX_GS 9 /* 0x65 */
+#define INAT_PFX_SS 10 /* 0x36 */
+#define INAT_PFX_ADDRSZ 11 /* 0x67 */
+/* x86-64 REX prefix */
+#define INAT_PFX_REX 12 /* 0x4X */
+/* AVX VEX prefixes */
+#define INAT_PFX_VEX2 13 /* 2-bytes VEX prefix */
+#define INAT_PFX_VEX3 14 /* 3-bytes VEX prefix */
+
+#define INAT_LSTPFX_MAX 3
+#define INAT_LGCPFX_MAX 11
+
+/* Immediate size */
+#define INAT_IMM_BYTE 1
+#define INAT_IMM_WORD 2
+#define INAT_IMM_DWORD 3
+#define INAT_IMM_QWORD 4
+#define INAT_IMM_PTR 5
+#define INAT_IMM_VWORD32 6
+#define INAT_IMM_VWORD 7
+
+/* Legacy prefix */
+#define INAT_PFX_OFFS 0
+#define INAT_PFX_BITS 4
+#define INAT_PFX_MAX ((1 << INAT_PFX_BITS) - 1)
+#define INAT_PFX_MASK (INAT_PFX_MAX << INAT_PFX_OFFS)
+/* Escape opcodes */
+#define INAT_ESC_OFFS (INAT_PFX_OFFS + INAT_PFX_BITS)
+#define INAT_ESC_BITS 2
+#define INAT_ESC_MAX ((1 << INAT_ESC_BITS) - 1)
+#define INAT_ESC_MASK (INAT_ESC_MAX << INAT_ESC_OFFS)
+/* Group opcodes (1-16) */
+#define INAT_GRP_OFFS (INAT_ESC_OFFS + INAT_ESC_BITS)
+#define INAT_GRP_BITS 5
+#define INAT_GRP_MAX ((1 << INAT_GRP_BITS) - 1)
+#define INAT_GRP_MASK (INAT_GRP_MAX << INAT_GRP_OFFS)
+/* Immediates */
+#define INAT_IMM_OFFS (INAT_GRP_OFFS + INAT_GRP_BITS)
+#define INAT_IMM_BITS 3
+#define INAT_IMM_MASK (((1 << INAT_IMM_BITS) - 1) << INAT_IMM_OFFS)
+/* Flags */
+#define INAT_FLAG_OFFS (INAT_IMM_OFFS + INAT_IMM_BITS)
+#define INAT_MODRM (1 << (INAT_FLAG_OFFS))
+#define INAT_FORCE64 (1 << (INAT_FLAG_OFFS + 1))
+#define INAT_SCNDIMM (1 << (INAT_FLAG_OFFS + 2))
+#define INAT_MOFFSET (1 << (INAT_FLAG_OFFS + 3))
+#define INAT_VARIANT (1 << (INAT_FLAG_OFFS + 4))
+#define INAT_VEXOK (1 << (INAT_FLAG_OFFS + 5))
+#define INAT_VEXONLY (1 << (INAT_FLAG_OFFS + 6))
+/* Attribute making macros for attribute tables */
+#define INAT_MAKE_PREFIX(pfx) (pfx << INAT_PFX_OFFS)
+#define INAT_MAKE_ESCAPE(esc) (esc << INAT_ESC_OFFS)
+#define INAT_MAKE_GROUP(grp) ((grp << INAT_GRP_OFFS) | INAT_MODRM)
+#define INAT_MAKE_IMM(imm) (imm << INAT_IMM_OFFS)
+
+/* Attribute search APIs */
+extern insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode);
+extern int inat_get_last_prefix_id(insn_byte_t last_pfx);
+extern insn_attr_t inat_get_escape_attribute(insn_byte_t opcode,
+ int lpfx_id,
+ insn_attr_t esc_attr);
+extern insn_attr_t inat_get_group_attribute(insn_byte_t modrm,
+ int lpfx_id,
+ insn_attr_t esc_attr);
+extern insn_attr_t inat_get_avx_attribute(insn_byte_t opcode,
+ insn_byte_t vex_m,
+ insn_byte_t vex_pp);
+
+/* Attribute checking functions */
+static inline int inat_is_legacy_prefix(insn_attr_t attr)
+{
+ attr &= INAT_PFX_MASK;
+ return attr && attr <= INAT_LGCPFX_MAX;
+}
+
+static inline int inat_is_address_size_prefix(insn_attr_t attr)
+{
+ return (attr & INAT_PFX_MASK) == INAT_PFX_ADDRSZ;
+}
+
+static inline int inat_is_operand_size_prefix(insn_attr_t attr)
+{
+ return (attr & INAT_PFX_MASK) == INAT_PFX_OPNDSZ;
+}
+
+static inline int inat_is_rex_prefix(insn_attr_t attr)
+{
+ return (attr & INAT_PFX_MASK) == INAT_PFX_REX;
+}
+
+static inline int inat_last_prefix_id(insn_attr_t attr)
+{
+ if ((attr & INAT_PFX_MASK) > INAT_LSTPFX_MAX)
+ return 0;
+ else
+ return attr & INAT_PFX_MASK;
+}
+
+static inline int inat_is_vex_prefix(insn_attr_t attr)
+{
+ attr &= INAT_PFX_MASK;
+ return attr == INAT_PFX_VEX2 || attr == INAT_PFX_VEX3;
+}
+
+static inline int inat_is_vex3_prefix(insn_attr_t attr)
+{
+ return (attr & INAT_PFX_MASK) == INAT_PFX_VEX3;
+}
+
+static inline int inat_is_escape(insn_attr_t attr)
+{
+ return attr & INAT_ESC_MASK;
+}
+
+static inline int inat_escape_id(insn_attr_t attr)
+{
+ return (attr & INAT_ESC_MASK) >> INAT_ESC_OFFS;
+}
+
+static inline int inat_is_group(insn_attr_t attr)
+{
+ return attr & INAT_GRP_MASK;
+}
+
+static inline int inat_group_id(insn_attr_t attr)
+{
+ return (attr & INAT_GRP_MASK) >> INAT_GRP_OFFS;
+}
+
+static inline int inat_group_common_attribute(insn_attr_t attr)
+{
+ return attr & ~INAT_GRP_MASK;
+}
+
+static inline int inat_has_immediate(insn_attr_t attr)
+{
+ return attr & INAT_IMM_MASK;
+}
+
+static inline int inat_immediate_size(insn_attr_t attr)
+{
+ return (attr & INAT_IMM_MASK) >> INAT_IMM_OFFS;
+}
+
+static inline int inat_has_modrm(insn_attr_t attr)
+{
+ return attr & INAT_MODRM;
+}
+
+static inline int inat_is_force64(insn_attr_t attr)
+{
+ return attr & INAT_FORCE64;
+}
+
+static inline int inat_has_second_immediate(insn_attr_t attr)
+{
+ return attr & INAT_SCNDIMM;
+}
+
+static inline int inat_has_moffset(insn_attr_t attr)
+{
+ return attr & INAT_MOFFSET;
+}
+
+static inline int inat_has_variant(insn_attr_t attr)
+{
+ return attr & INAT_VARIANT;
+}
+
+static inline int inat_accept_vex(insn_attr_t attr)
+{
+ return attr & INAT_VEXOK;
+}
+
+static inline int inat_must_vex(insn_attr_t attr)
+{
+ return attr & INAT_VEXONLY;
+}
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/inat_types.h b/tools/perf/util/intel-pt-decoder/inat_types.h
new file mode 100644
index 000000000000..cb3c20ce39cf
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/inat_types.h
@@ -0,0 +1,29 @@
+#ifndef _ASM_X86_INAT_TYPES_H
+#define _ASM_X86_INAT_TYPES_H
+/*
+ * x86 instruction attributes
+ *
+ * Written by Masami Hiramatsu <mhiramat@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+/* Instruction attributes */
+typedef unsigned int insn_attr_t;
+typedef unsigned char insn_byte_t;
+typedef signed int insn_value_t;
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/insn.c b/tools/perf/util/intel-pt-decoder/insn.c
new file mode 100644
index 000000000000..47314a64399c
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/insn.c
@@ -0,0 +1,594 @@
+/*
+ * x86 instruction analysis
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2002, 2004, 2009
+ */
+
+#ifdef __KERNEL__
+#include <linux/string.h>
+#else
+#include <string.h>
+#endif
+#include "inat.h"
+#include "insn.h"
+
+/* Verify next sizeof(t) bytes can be on the same instruction */
+#define validate_next(t, insn, n) \
+ ((insn)->next_byte + sizeof(t) + n <= (insn)->end_kaddr)
+
+#define __get_next(t, insn) \
+ ({ t r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); r; })
+
+#define __peek_nbyte_next(t, insn, n) \
+ ({ t r = *(t*)((insn)->next_byte + n); r; })
+
+#define get_next(t, insn) \
+ ({ if (unlikely(!validate_next(t, insn, 0))) goto err_out; __get_next(t, insn); })
+
+#define peek_nbyte_next(t, insn, n) \
+ ({ if (unlikely(!validate_next(t, insn, n))) goto err_out; __peek_nbyte_next(t, insn, n); })
+
+#define peek_next(t, insn) peek_nbyte_next(t, insn, 0)
+
+/**
+ * insn_init() - initialize struct insn
+ * @insn: &struct insn to be initialized
+ * @kaddr: address (in kernel memory) of instruction (or copy thereof)
+ * @x86_64: !0 for 64-bit kernel or 64-bit app
+ */
+void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64)
+{
+ /*
+ * Instructions longer than MAX_INSN_SIZE (15 bytes) are invalid
+ * even if the input buffer is long enough to hold them.
+ */
+ if (buf_len > MAX_INSN_SIZE)
+ buf_len = MAX_INSN_SIZE;
+
+ memset(insn, 0, sizeof(*insn));
+ insn->kaddr = kaddr;
+ insn->end_kaddr = kaddr + buf_len;
+ insn->next_byte = kaddr;
+ insn->x86_64 = x86_64 ? 1 : 0;
+ insn->opnd_bytes = 4;
+ if (x86_64)
+ insn->addr_bytes = 8;
+ else
+ insn->addr_bytes = 4;
+}
+
+/**
+ * insn_get_prefixes - scan x86 instruction prefix bytes
+ * @insn: &struct insn containing instruction
+ *
+ * Populates the @insn->prefixes bitmap, and updates @insn->next_byte
+ * to point to the (first) opcode. No effect if @insn->prefixes.got
+ * is already set.
+ */
+void insn_get_prefixes(struct insn *insn)
+{
+ struct insn_field *prefixes = &insn->prefixes;
+ insn_attr_t attr;
+ insn_byte_t b, lb;
+ int i, nb;
+
+ if (prefixes->got)
+ return;
+
+ nb = 0;
+ lb = 0;
+ b = peek_next(insn_byte_t, insn);
+ attr = inat_get_opcode_attribute(b);
+ while (inat_is_legacy_prefix(attr)) {
+ /* Skip if same prefix */
+ for (i = 0; i < nb; i++)
+ if (prefixes->bytes[i] == b)
+ goto found;
+ if (nb == 4)
+ /* Invalid instruction */
+ break;
+ prefixes->bytes[nb++] = b;
+ if (inat_is_address_size_prefix(attr)) {
+ /* address size switches 2/4 or 4/8 */
+ if (insn->x86_64)
+ insn->addr_bytes ^= 12;
+ else
+ insn->addr_bytes ^= 6;
+ } else if (inat_is_operand_size_prefix(attr)) {
+ /* oprand size switches 2/4 */
+ insn->opnd_bytes ^= 6;
+ }
+found:
+ prefixes->nbytes++;
+ insn->next_byte++;
+ lb = b;
+ b = peek_next(insn_byte_t, insn);
+ attr = inat_get_opcode_attribute(b);
+ }
+ /* Set the last prefix */
+ if (lb && lb != insn->prefixes.bytes[3]) {
+ if (unlikely(insn->prefixes.bytes[3])) {
+ /* Swap the last prefix */
+ b = insn->prefixes.bytes[3];
+ for (i = 0; i < nb; i++)
+ if (prefixes->bytes[i] == lb)
+ prefixes->bytes[i] = b;
+ }
+ insn->prefixes.bytes[3] = lb;
+ }
+
+ /* Decode REX prefix */
+ if (insn->x86_64) {
+ b = peek_next(insn_byte_t, insn);
+ attr = inat_get_opcode_attribute(b);
+ if (inat_is_rex_prefix(attr)) {
+ insn->rex_prefix.value = b;
+ insn->rex_prefix.nbytes = 1;
+ insn->next_byte++;
+ if (X86_REX_W(b))
+ /* REX.W overrides opnd_size */
+ insn->opnd_bytes = 8;
+ }
+ }
+ insn->rex_prefix.got = 1;
+
+ /* Decode VEX prefix */
+ b = peek_next(insn_byte_t, insn);
+ attr = inat_get_opcode_attribute(b);
+ if (inat_is_vex_prefix(attr)) {
+ insn_byte_t b2 = peek_nbyte_next(insn_byte_t, insn, 1);
+ if (!insn->x86_64) {
+ /*
+ * In 32-bits mode, if the [7:6] bits (mod bits of
+ * ModRM) on the second byte are not 11b, it is
+ * LDS or LES.
+ */
+ if (X86_MODRM_MOD(b2) != 3)
+ goto vex_end;
+ }
+ insn->vex_prefix.bytes[0] = b;
+ insn->vex_prefix.bytes[1] = b2;
+ if (inat_is_vex3_prefix(attr)) {
+ b2 = peek_nbyte_next(insn_byte_t, insn, 2);
+ insn->vex_prefix.bytes[2] = b2;
+ insn->vex_prefix.nbytes = 3;
+ insn->next_byte += 3;
+ if (insn->x86_64 && X86_VEX_W(b2))
+ /* VEX.W overrides opnd_size */
+ insn->opnd_bytes = 8;
+ } else {
+ /*
+ * For VEX2, fake VEX3-like byte#2.
+ * Makes it easier to decode vex.W, vex.vvvv,
+ * vex.L and vex.pp. Masking with 0x7f sets vex.W == 0.
+ */
+ insn->vex_prefix.bytes[2] = b2 & 0x7f;
+ insn->vex_prefix.nbytes = 2;
+ insn->next_byte += 2;
+ }
+ }
+vex_end:
+ insn->vex_prefix.got = 1;
+
+ prefixes->got = 1;
+
+err_out:
+ return;
+}
+
+/**
+ * insn_get_opcode - collect opcode(s)
+ * @insn: &struct insn containing instruction
+ *
+ * Populates @insn->opcode, updates @insn->next_byte to point past the
+ * opcode byte(s), and set @insn->attr (except for groups).
+ * If necessary, first collects any preceding (prefix) bytes.
+ * Sets @insn->opcode.value = opcode1. No effect if @insn->opcode.got
+ * is already 1.
+ */
+void insn_get_opcode(struct insn *insn)
+{
+ struct insn_field *opcode = &insn->opcode;
+ insn_byte_t op;
+ int pfx_id;
+ if (opcode->got)
+ return;
+ if (!insn->prefixes.got)
+ insn_get_prefixes(insn);
+
+ /* Get first opcode */
+ op = get_next(insn_byte_t, insn);
+ opcode->bytes[0] = op;
+ opcode->nbytes = 1;
+
+ /* Check if there is VEX prefix or not */
+ if (insn_is_avx(insn)) {
+ insn_byte_t m, p;
+ m = insn_vex_m_bits(insn);
+ p = insn_vex_p_bits(insn);
+ insn->attr = inat_get_avx_attribute(op, m, p);
+ if (!inat_accept_vex(insn->attr) && !inat_is_group(insn->attr))
+ insn->attr = 0; /* This instruction is bad */
+ goto end; /* VEX has only 1 byte for opcode */
+ }
+
+ insn->attr = inat_get_opcode_attribute(op);
+ while (inat_is_escape(insn->attr)) {
+ /* Get escaped opcode */
+ op = get_next(insn_byte_t, insn);
+ opcode->bytes[opcode->nbytes++] = op;
+ pfx_id = insn_last_prefix_id(insn);
+ insn->attr = inat_get_escape_attribute(op, pfx_id, insn->attr);
+ }
+ if (inat_must_vex(insn->attr))
+ insn->attr = 0; /* This instruction is bad */
+end:
+ opcode->got = 1;
+
+err_out:
+ return;
+}
+
+/**
+ * insn_get_modrm - collect ModRM byte, if any
+ * @insn: &struct insn containing instruction
+ *
+ * Populates @insn->modrm and updates @insn->next_byte to point past the
+ * ModRM byte, if any. If necessary, first collects the preceding bytes
+ * (prefixes and opcode(s)). No effect if @insn->modrm.got is already 1.
+ */
+void insn_get_modrm(struct insn *insn)
+{
+ struct insn_field *modrm = &insn->modrm;
+ insn_byte_t pfx_id, mod;
+ if (modrm->got)
+ return;
+ if (!insn->opcode.got)
+ insn_get_opcode(insn);
+
+ if (inat_has_modrm(insn->attr)) {
+ mod = get_next(insn_byte_t, insn);
+ modrm->value = mod;
+ modrm->nbytes = 1;
+ if (inat_is_group(insn->attr)) {
+ pfx_id = insn_last_prefix_id(insn);
+ insn->attr = inat_get_group_attribute(mod, pfx_id,
+ insn->attr);
+ if (insn_is_avx(insn) && !inat_accept_vex(insn->attr))
+ insn->attr = 0; /* This is bad */
+ }
+ }
+
+ if (insn->x86_64 && inat_is_force64(insn->attr))
+ insn->opnd_bytes = 8;
+ modrm->got = 1;
+
+err_out:
+ return;
+}
+
+
+/**
+ * insn_rip_relative() - Does instruction use RIP-relative addressing mode?
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * ModRM byte. No effect if @insn->x86_64 is 0.
+ */
+int insn_rip_relative(struct insn *insn)
+{
+ struct insn_field *modrm = &insn->modrm;
+
+ if (!insn->x86_64)
+ return 0;
+ if (!modrm->got)
+ insn_get_modrm(insn);
+ /*
+ * For rip-relative instructions, the mod field (top 2 bits)
+ * is zero and the r/m field (bottom 3 bits) is 0x5.
+ */
+ return (modrm->nbytes && (modrm->value & 0xc7) == 0x5);
+}
+
+/**
+ * insn_get_sib() - Get the SIB byte of instruction
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * ModRM byte.
+ */
+void insn_get_sib(struct insn *insn)
+{
+ insn_byte_t modrm;
+
+ if (insn->sib.got)
+ return;
+ if (!insn->modrm.got)
+ insn_get_modrm(insn);
+ if (insn->modrm.nbytes) {
+ modrm = (insn_byte_t)insn->modrm.value;
+ if (insn->addr_bytes != 2 &&
+ X86_MODRM_MOD(modrm) != 3 && X86_MODRM_RM(modrm) == 4) {
+ insn->sib.value = get_next(insn_byte_t, insn);
+ insn->sib.nbytes = 1;
+ }
+ }
+ insn->sib.got = 1;
+
+err_out:
+ return;
+}
+
+
+/**
+ * insn_get_displacement() - Get the displacement of instruction
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * SIB byte.
+ * Displacement value is sign-expanded.
+ */
+void insn_get_displacement(struct insn *insn)
+{
+ insn_byte_t mod, rm, base;
+
+ if (insn->displacement.got)
+ return;
+ if (!insn->sib.got)
+ insn_get_sib(insn);
+ if (insn->modrm.nbytes) {
+ /*
+ * Interpreting the modrm byte:
+ * mod = 00 - no displacement fields (exceptions below)
+ * mod = 01 - 1-byte displacement field
+ * mod = 10 - displacement field is 4 bytes, or 2 bytes if
+ * address size = 2 (0x67 prefix in 32-bit mode)
+ * mod = 11 - no memory operand
+ *
+ * If address size = 2...
+ * mod = 00, r/m = 110 - displacement field is 2 bytes
+ *
+ * If address size != 2...
+ * mod != 11, r/m = 100 - SIB byte exists
+ * mod = 00, SIB base = 101 - displacement field is 4 bytes
+ * mod = 00, r/m = 101 - rip-relative addressing, displacement
+ * field is 4 bytes
+ */
+ mod = X86_MODRM_MOD(insn->modrm.value);
+ rm = X86_MODRM_RM(insn->modrm.value);
+ base = X86_SIB_BASE(insn->sib.value);
+ if (mod == 3)
+ goto out;
+ if (mod == 1) {
+ insn->displacement.value = get_next(char, insn);
+ insn->displacement.nbytes = 1;
+ } else if (insn->addr_bytes == 2) {
+ if ((mod == 0 && rm == 6) || mod == 2) {
+ insn->displacement.value =
+ get_next(short, insn);
+ insn->displacement.nbytes = 2;
+ }
+ } else {
+ if ((mod == 0 && rm == 5) || mod == 2 ||
+ (mod == 0 && base == 5)) {
+ insn->displacement.value = get_next(int, insn);
+ insn->displacement.nbytes = 4;
+ }
+ }
+ }
+out:
+ insn->displacement.got = 1;
+
+err_out:
+ return;
+}
+
+/* Decode moffset16/32/64. Return 0 if failed */
+static int __get_moffset(struct insn *insn)
+{
+ switch (insn->addr_bytes) {
+ case 2:
+ insn->moffset1.value = get_next(short, insn);
+ insn->moffset1.nbytes = 2;
+ break;
+ case 4:
+ insn->moffset1.value = get_next(int, insn);
+ insn->moffset1.nbytes = 4;
+ break;
+ case 8:
+ insn->moffset1.value = get_next(int, insn);
+ insn->moffset1.nbytes = 4;
+ insn->moffset2.value = get_next(int, insn);
+ insn->moffset2.nbytes = 4;
+ break;
+ default: /* opnd_bytes must be modified manually */
+ goto err_out;
+ }
+ insn->moffset1.got = insn->moffset2.got = 1;
+
+ return 1;
+
+err_out:
+ return 0;
+}
+
+/* Decode imm v32(Iz). Return 0 if failed */
+static int __get_immv32(struct insn *insn)
+{
+ switch (insn->opnd_bytes) {
+ case 2:
+ insn->immediate.value = get_next(short, insn);
+ insn->immediate.nbytes = 2;
+ break;
+ case 4:
+ case 8:
+ insn->immediate.value = get_next(int, insn);
+ insn->immediate.nbytes = 4;
+ break;
+ default: /* opnd_bytes must be modified manually */
+ goto err_out;
+ }
+
+ return 1;
+
+err_out:
+ return 0;
+}
+
+/* Decode imm v64(Iv/Ov), Return 0 if failed */
+static int __get_immv(struct insn *insn)
+{
+ switch (insn->opnd_bytes) {
+ case 2:
+ insn->immediate1.value = get_next(short, insn);
+ insn->immediate1.nbytes = 2;
+ break;
+ case 4:
+ insn->immediate1.value = get_next(int, insn);
+ insn->immediate1.nbytes = 4;
+ break;
+ case 8:
+ insn->immediate1.value = get_next(int, insn);
+ insn->immediate1.nbytes = 4;
+ insn->immediate2.value = get_next(int, insn);
+ insn->immediate2.nbytes = 4;
+ break;
+ default: /* opnd_bytes must be modified manually */
+ goto err_out;
+ }
+ insn->immediate1.got = insn->immediate2.got = 1;
+
+ return 1;
+err_out:
+ return 0;
+}
+
+/* Decode ptr16:16/32(Ap) */
+static int __get_immptr(struct insn *insn)
+{
+ switch (insn->opnd_bytes) {
+ case 2:
+ insn->immediate1.value = get_next(short, insn);
+ insn->immediate1.nbytes = 2;
+ break;
+ case 4:
+ insn->immediate1.value = get_next(int, insn);
+ insn->immediate1.nbytes = 4;
+ break;
+ case 8:
+ /* ptr16:64 is not exist (no segment) */
+ return 0;
+ default: /* opnd_bytes must be modified manually */
+ goto err_out;
+ }
+ insn->immediate2.value = get_next(unsigned short, insn);
+ insn->immediate2.nbytes = 2;
+ insn->immediate1.got = insn->immediate2.got = 1;
+
+ return 1;
+err_out:
+ return 0;
+}
+
+/**
+ * insn_get_immediate() - Get the immediates of instruction
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * displacement bytes.
+ * Basically, most of immediates are sign-expanded. Unsigned-value can be
+ * get by bit masking with ((1 << (nbytes * 8)) - 1)
+ */
+void insn_get_immediate(struct insn *insn)
+{
+ if (insn->immediate.got)
+ return;
+ if (!insn->displacement.got)
+ insn_get_displacement(insn);
+
+ if (inat_has_moffset(insn->attr)) {
+ if (!__get_moffset(insn))
+ goto err_out;
+ goto done;
+ }
+
+ if (!inat_has_immediate(insn->attr))
+ /* no immediates */
+ goto done;
+
+ switch (inat_immediate_size(insn->attr)) {
+ case INAT_IMM_BYTE:
+ insn->immediate.value = get_next(char, insn);
+ insn->immediate.nbytes = 1;
+ break;
+ case INAT_IMM_WORD:
+ insn->immediate.value = get_next(short, insn);
+ insn->immediate.nbytes = 2;
+ break;
+ case INAT_IMM_DWORD:
+ insn->immediate.value = get_next(int, insn);
+ insn->immediate.nbytes = 4;
+ break;
+ case INAT_IMM_QWORD:
+ insn->immediate1.value = get_next(int, insn);
+ insn->immediate1.nbytes = 4;
+ insn->immediate2.value = get_next(int, insn);
+ insn->immediate2.nbytes = 4;
+ break;
+ case INAT_IMM_PTR:
+ if (!__get_immptr(insn))
+ goto err_out;
+ break;
+ case INAT_IMM_VWORD32:
+ if (!__get_immv32(insn))
+ goto err_out;
+ break;
+ case INAT_IMM_VWORD:
+ if (!__get_immv(insn))
+ goto err_out;
+ break;
+ default:
+ /* Here, insn must have an immediate, but failed */
+ goto err_out;
+ }
+ if (inat_has_second_immediate(insn->attr)) {
+ insn->immediate2.value = get_next(char, insn);
+ insn->immediate2.nbytes = 1;
+ }
+done:
+ insn->immediate.got = 1;
+
+err_out:
+ return;
+}
+
+/**
+ * insn_get_length() - Get the length of instruction
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * immediates bytes.
+ */
+void insn_get_length(struct insn *insn)
+{
+ if (insn->length)
+ return;
+ if (!insn->immediate.got)
+ insn_get_immediate(insn);
+ insn->length = (unsigned char)((unsigned long)insn->next_byte
+ - (unsigned long)insn->kaddr);
+}
diff --git a/tools/perf/util/intel-pt-decoder/insn.h b/tools/perf/util/intel-pt-decoder/insn.h
new file mode 100644
index 000000000000..dd12da0f4593
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/insn.h
@@ -0,0 +1,201 @@
+#ifndef _ASM_X86_INSN_H
+#define _ASM_X86_INSN_H
+/*
+ * x86 instruction analysis
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2009
+ */
+
+/* insn_attr_t is defined in inat.h */
+#include "inat.h"
+
+struct insn_field {
+ union {
+ insn_value_t value;
+ insn_byte_t bytes[4];
+ };
+ /* !0 if we've run insn_get_xxx() for this field */
+ unsigned char got;
+ unsigned char nbytes;
+};
+
+struct insn {
+ struct insn_field prefixes; /*
+ * Prefixes
+ * prefixes.bytes[3]: last prefix
+ */
+ struct insn_field rex_prefix; /* REX prefix */
+ struct insn_field vex_prefix; /* VEX prefix */
+ struct insn_field opcode; /*
+ * opcode.bytes[0]: opcode1
+ * opcode.bytes[1]: opcode2
+ * opcode.bytes[2]: opcode3
+ */
+ struct insn_field modrm;
+ struct insn_field sib;
+ struct insn_field displacement;
+ union {
+ struct insn_field immediate;
+ struct insn_field moffset1; /* for 64bit MOV */
+ struct insn_field immediate1; /* for 64bit imm or off16/32 */
+ };
+ union {
+ struct insn_field moffset2; /* for 64bit MOV */
+ struct insn_field immediate2; /* for 64bit imm or seg16 */
+ };
+
+ insn_attr_t attr;
+ unsigned char opnd_bytes;
+ unsigned char addr_bytes;
+ unsigned char length;
+ unsigned char x86_64;
+
+ const insn_byte_t *kaddr; /* kernel address of insn to analyze */
+ const insn_byte_t *end_kaddr; /* kernel address of last insn in buffer */
+ const insn_byte_t *next_byte;
+};
+
+#define MAX_INSN_SIZE 15
+
+#define X86_MODRM_MOD(modrm) (((modrm) & 0xc0) >> 6)
+#define X86_MODRM_REG(modrm) (((modrm) & 0x38) >> 3)
+#define X86_MODRM_RM(modrm) ((modrm) & 0x07)
+
+#define X86_SIB_SCALE(sib) (((sib) & 0xc0) >> 6)
+#define X86_SIB_INDEX(sib) (((sib) & 0x38) >> 3)
+#define X86_SIB_BASE(sib) ((sib) & 0x07)
+
+#define X86_REX_W(rex) ((rex) & 8)
+#define X86_REX_R(rex) ((rex) & 4)
+#define X86_REX_X(rex) ((rex) & 2)
+#define X86_REX_B(rex) ((rex) & 1)
+
+/* VEX bit flags */
+#define X86_VEX_W(vex) ((vex) & 0x80) /* VEX3 Byte2 */
+#define X86_VEX_R(vex) ((vex) & 0x80) /* VEX2/3 Byte1 */
+#define X86_VEX_X(vex) ((vex) & 0x40) /* VEX3 Byte1 */
+#define X86_VEX_B(vex) ((vex) & 0x20) /* VEX3 Byte1 */
+#define X86_VEX_L(vex) ((vex) & 0x04) /* VEX3 Byte2, VEX2 Byte1 */
+/* VEX bit fields */
+#define X86_VEX3_M(vex) ((vex) & 0x1f) /* VEX3 Byte1 */
+#define X86_VEX2_M 1 /* VEX2.M always 1 */
+#define X86_VEX_V(vex) (((vex) & 0x78) >> 3) /* VEX3 Byte2, VEX2 Byte1 */
+#define X86_VEX_P(vex) ((vex) & 0x03) /* VEX3 Byte2, VEX2 Byte1 */
+#define X86_VEX_M_MAX 0x1f /* VEX3.M Maximum value */
+
+extern void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64);
+extern void insn_get_prefixes(struct insn *insn);
+extern void insn_get_opcode(struct insn *insn);
+extern void insn_get_modrm(struct insn *insn);
+extern void insn_get_sib(struct insn *insn);
+extern void insn_get_displacement(struct insn *insn);
+extern void insn_get_immediate(struct insn *insn);
+extern void insn_get_length(struct insn *insn);
+
+/* Attribute will be determined after getting ModRM (for opcode groups) */
+static inline void insn_get_attribute(struct insn *insn)
+{
+ insn_get_modrm(insn);
+}
+
+/* Instruction uses RIP-relative addressing */
+extern int insn_rip_relative(struct insn *insn);
+
+/* Init insn for kernel text */
+static inline void kernel_insn_init(struct insn *insn,
+ const void *kaddr, int buf_len)
+{
+#ifdef CONFIG_X86_64
+ insn_init(insn, kaddr, buf_len, 1);
+#else /* CONFIG_X86_32 */
+ insn_init(insn, kaddr, buf_len, 0);
+#endif
+}
+
+static inline int insn_is_avx(struct insn *insn)
+{
+ if (!insn->prefixes.got)
+ insn_get_prefixes(insn);
+ return (insn->vex_prefix.value != 0);
+}
+
+/* Ensure this instruction is decoded completely */
+static inline int insn_complete(struct insn *insn)
+{
+ return insn->opcode.got && insn->modrm.got && insn->sib.got &&
+ insn->displacement.got && insn->immediate.got;
+}
+
+static inline insn_byte_t insn_vex_m_bits(struct insn *insn)
+{
+ if (insn->vex_prefix.nbytes == 2) /* 2 bytes VEX */
+ return X86_VEX2_M;
+ else
+ return X86_VEX3_M(insn->vex_prefix.bytes[1]);
+}
+
+static inline insn_byte_t insn_vex_p_bits(struct insn *insn)
+{
+ if (insn->vex_prefix.nbytes == 2) /* 2 bytes VEX */
+ return X86_VEX_P(insn->vex_prefix.bytes[1]);
+ else
+ return X86_VEX_P(insn->vex_prefix.bytes[2]);
+}
+
+/* Get the last prefix id from last prefix or VEX prefix */
+static inline int insn_last_prefix_id(struct insn *insn)
+{
+ if (insn_is_avx(insn))
+ return insn_vex_p_bits(insn); /* VEX_p is a SIMD prefix id */
+
+ if (insn->prefixes.bytes[3])
+ return inat_get_last_prefix_id(insn->prefixes.bytes[3]);
+
+ return 0;
+}
+
+/* Offset of each field from kaddr */
+static inline int insn_offset_rex_prefix(struct insn *insn)
+{
+ return insn->prefixes.nbytes;
+}
+static inline int insn_offset_vex_prefix(struct insn *insn)
+{
+ return insn_offset_rex_prefix(insn) + insn->rex_prefix.nbytes;
+}
+static inline int insn_offset_opcode(struct insn *insn)
+{
+ return insn_offset_vex_prefix(insn) + insn->vex_prefix.nbytes;
+}
+static inline int insn_offset_modrm(struct insn *insn)
+{
+ return insn_offset_opcode(insn) + insn->opcode.nbytes;
+}
+static inline int insn_offset_sib(struct insn *insn)
+{
+ return insn_offset_modrm(insn) + insn->modrm.nbytes;
+}
+static inline int insn_offset_displacement(struct insn *insn)
+{
+ return insn_offset_sib(insn) + insn->sib.nbytes;
+}
+static inline int insn_offset_immediate(struct insn *insn)
+{
+ return insn_offset_displacement(insn) + insn->displacement.nbytes;
+}
+
+#endif /* _ASM_X86_INSN_H */
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
new file mode 100644
index 000000000000..22ba50224319
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -0,0 +1,2345 @@
+/*
+ * intel_pt_decoder.c: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <errno.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include "../cache.h"
+#include "../util.h"
+
+#include "intel-pt-insn-decoder.h"
+#include "intel-pt-pkt-decoder.h"
+#include "intel-pt-decoder.h"
+#include "intel-pt-log.h"
+
+#define INTEL_PT_BLK_SIZE 1024
+
+#define BIT63 (((uint64_t)1 << 63))
+
+#define INTEL_PT_RETURN 1
+
+/* Maximum number of loops with no packets consumed i.e. stuck in a loop */
+#define INTEL_PT_MAX_LOOPS 10000
+
+struct intel_pt_blk {
+ struct intel_pt_blk *prev;
+ uint64_t ip[INTEL_PT_BLK_SIZE];
+};
+
+struct intel_pt_stack {
+ struct intel_pt_blk *blk;
+ struct intel_pt_blk *spare;
+ int pos;
+};
+
+enum intel_pt_pkt_state {
+ INTEL_PT_STATE_NO_PSB,
+ INTEL_PT_STATE_NO_IP,
+ INTEL_PT_STATE_ERR_RESYNC,
+ INTEL_PT_STATE_IN_SYNC,
+ INTEL_PT_STATE_TNT,
+ INTEL_PT_STATE_TIP,
+ INTEL_PT_STATE_TIP_PGD,
+ INTEL_PT_STATE_FUP,
+ INTEL_PT_STATE_FUP_NO_TIP,
+};
+
+#ifdef INTEL_PT_STRICT
+#define INTEL_PT_STATE_ERR1 INTEL_PT_STATE_NO_PSB
+#define INTEL_PT_STATE_ERR2 INTEL_PT_STATE_NO_PSB
+#define INTEL_PT_STATE_ERR3 INTEL_PT_STATE_NO_PSB
+#define INTEL_PT_STATE_ERR4 INTEL_PT_STATE_NO_PSB
+#else
+#define INTEL_PT_STATE_ERR1 (decoder->pkt_state)
+#define INTEL_PT_STATE_ERR2 INTEL_PT_STATE_NO_IP
+#define INTEL_PT_STATE_ERR3 INTEL_PT_STATE_ERR_RESYNC
+#define INTEL_PT_STATE_ERR4 INTEL_PT_STATE_IN_SYNC
+#endif
+
+struct intel_pt_decoder {
+ int (*get_trace)(struct intel_pt_buffer *buffer, void *data);
+ int (*walk_insn)(struct intel_pt_insn *intel_pt_insn,
+ uint64_t *insn_cnt_ptr, uint64_t *ip, uint64_t to_ip,
+ uint64_t max_insn_cnt, void *data);
+ void *data;
+ struct intel_pt_state state;
+ const unsigned char *buf;
+ size_t len;
+ bool return_compression;
+ bool mtc_insn;
+ bool pge;
+ bool have_tma;
+ bool have_cyc;
+ uint64_t pos;
+ uint64_t last_ip;
+ uint64_t ip;
+ uint64_t cr3;
+ uint64_t timestamp;
+ uint64_t tsc_timestamp;
+ uint64_t ref_timestamp;
+ uint64_t ret_addr;
+ uint64_t ctc_timestamp;
+ uint64_t ctc_delta;
+ uint64_t cycle_cnt;
+ uint64_t cyc_ref_timestamp;
+ uint32_t last_mtc;
+ uint32_t tsc_ctc_ratio_n;
+ uint32_t tsc_ctc_ratio_d;
+ uint32_t tsc_ctc_mult;
+ uint32_t tsc_slip;
+ uint32_t ctc_rem_mask;
+ int mtc_shift;
+ struct intel_pt_stack stack;
+ enum intel_pt_pkt_state pkt_state;
+ struct intel_pt_pkt packet;
+ struct intel_pt_pkt tnt;
+ int pkt_step;
+ int pkt_len;
+ int last_packet_type;
+ unsigned int cbr;
+ unsigned int max_non_turbo_ratio;
+ double max_non_turbo_ratio_fp;
+ double cbr_cyc_to_tsc;
+ double calc_cyc_to_tsc;
+ bool have_calc_cyc_to_tsc;
+ int exec_mode;
+ unsigned int insn_bytes;
+ uint64_t sign_bit;
+ uint64_t sign_bits;
+ uint64_t period;
+ enum intel_pt_period_type period_type;
+ uint64_t tot_insn_cnt;
+ uint64_t period_insn_cnt;
+ uint64_t period_mask;
+ uint64_t period_ticks;
+ uint64_t last_masked_timestamp;
+ bool continuous_period;
+ bool overflow;
+ bool set_fup_tx_flags;
+ unsigned int fup_tx_flags;
+ unsigned int tx_flags;
+ uint64_t timestamp_insn_cnt;
+ uint64_t stuck_ip;
+ int no_progress;
+ int stuck_ip_prd;
+ int stuck_ip_cnt;
+ const unsigned char *next_buf;
+ size_t next_len;
+ unsigned char temp_buf[INTEL_PT_PKT_MAX_SZ];
+};
+
+static uint64_t intel_pt_lower_power_of_2(uint64_t x)
+{
+ int i;
+
+ for (i = 0; x != 1; i++)
+ x >>= 1;
+
+ return x << i;
+}
+
+static void intel_pt_setup_period(struct intel_pt_decoder *decoder)
+{
+ if (decoder->period_type == INTEL_PT_PERIOD_TICKS) {
+ uint64_t period;
+
+ period = intel_pt_lower_power_of_2(decoder->period);
+ decoder->period_mask = ~(period - 1);
+ decoder->period_ticks = period;
+ }
+}
+
+static uint64_t multdiv(uint64_t t, uint32_t n, uint32_t d)
+{
+ if (!d)
+ return 0;
+ return (t / d) * n + ((t % d) * n) / d;
+}
+
+struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params)
+{
+ struct intel_pt_decoder *decoder;
+
+ if (!params->get_trace || !params->walk_insn)
+ return NULL;
+
+ decoder = zalloc(sizeof(struct intel_pt_decoder));
+ if (!decoder)
+ return NULL;
+
+ decoder->get_trace = params->get_trace;
+ decoder->walk_insn = params->walk_insn;
+ decoder->data = params->data;
+ decoder->return_compression = params->return_compression;
+
+ decoder->sign_bit = (uint64_t)1 << 47;
+ decoder->sign_bits = ~(((uint64_t)1 << 48) - 1);
+
+ decoder->period = params->period;
+ decoder->period_type = params->period_type;
+
+ decoder->max_non_turbo_ratio = params->max_non_turbo_ratio;
+ decoder->max_non_turbo_ratio_fp = params->max_non_turbo_ratio;
+
+ intel_pt_setup_period(decoder);
+
+ decoder->mtc_shift = params->mtc_period;
+ decoder->ctc_rem_mask = (1 << decoder->mtc_shift) - 1;
+
+ decoder->tsc_ctc_ratio_n = params->tsc_ctc_ratio_n;
+ decoder->tsc_ctc_ratio_d = params->tsc_ctc_ratio_d;
+
+ if (!decoder->tsc_ctc_ratio_n)
+ decoder->tsc_ctc_ratio_d = 0;
+
+ if (decoder->tsc_ctc_ratio_d) {
+ if (!(decoder->tsc_ctc_ratio_n % decoder->tsc_ctc_ratio_d))
+ decoder->tsc_ctc_mult = decoder->tsc_ctc_ratio_n /
+ decoder->tsc_ctc_ratio_d;
+
+ /*
+ * Allow for timestamps appearing to backwards because a TSC
+ * packet has slipped past a MTC packet, so allow 2 MTC ticks
+ * or ...
+ */
+ decoder->tsc_slip = multdiv(2 << decoder->mtc_shift,
+ decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+ /* ... or 0x100 paranoia */
+ if (decoder->tsc_slip < 0x100)
+ decoder->tsc_slip = 0x100;
+
+ intel_pt_log("timestamp: mtc_shift %u\n", decoder->mtc_shift);
+ intel_pt_log("timestamp: tsc_ctc_ratio_n %u\n", decoder->tsc_ctc_ratio_n);
+ intel_pt_log("timestamp: tsc_ctc_ratio_d %u\n", decoder->tsc_ctc_ratio_d);
+ intel_pt_log("timestamp: tsc_ctc_mult %u\n", decoder->tsc_ctc_mult);
+ intel_pt_log("timestamp: tsc_slip %#x\n", decoder->tsc_slip);
+
+ return decoder;
+}
+
+static void intel_pt_pop_blk(struct intel_pt_stack *stack)
+{
+ struct intel_pt_blk *blk = stack->blk;
+
+ stack->blk = blk->prev;
+ if (!stack->spare)
+ stack->spare = blk;
+ else
+ free(blk);
+}
+
+static uint64_t intel_pt_pop(struct intel_pt_stack *stack)
+{
+ if (!stack->pos) {
+ if (!stack->blk)
+ return 0;
+ intel_pt_pop_blk(stack);
+ if (!stack->blk)
+ return 0;
+ stack->pos = INTEL_PT_BLK_SIZE;
+ }
+ return stack->blk->ip[--stack->pos];
+}
+
+static int intel_pt_alloc_blk(struct intel_pt_stack *stack)
+{
+ struct intel_pt_blk *blk;
+
+ if (stack->spare) {
+ blk = stack->spare;
+ stack->spare = NULL;
+ } else {
+ blk = malloc(sizeof(struct intel_pt_blk));
+ if (!blk)
+ return -ENOMEM;
+ }
+
+ blk->prev = stack->blk;
+ stack->blk = blk;
+ stack->pos = 0;
+ return 0;
+}
+
+static int intel_pt_push(struct intel_pt_stack *stack, uint64_t ip)
+{
+ int err;
+
+ if (!stack->blk || stack->pos == INTEL_PT_BLK_SIZE) {
+ err = intel_pt_alloc_blk(stack);
+ if (err)
+ return err;
+ }
+
+ stack->blk->ip[stack->pos++] = ip;
+ return 0;
+}
+
+static void intel_pt_clear_stack(struct intel_pt_stack *stack)
+{
+ while (stack->blk)
+ intel_pt_pop_blk(stack);
+ stack->pos = 0;
+}
+
+static void intel_pt_free_stack(struct intel_pt_stack *stack)
+{
+ intel_pt_clear_stack(stack);
+ zfree(&stack->blk);
+ zfree(&stack->spare);
+}
+
+void intel_pt_decoder_free(struct intel_pt_decoder *decoder)
+{
+ intel_pt_free_stack(&decoder->stack);
+ free(decoder);
+}
+
+static int intel_pt_ext_err(int code)
+{
+ switch (code) {
+ case -ENOMEM:
+ return INTEL_PT_ERR_NOMEM;
+ case -ENOSYS:
+ return INTEL_PT_ERR_INTERN;
+ case -EBADMSG:
+ return INTEL_PT_ERR_BADPKT;
+ case -ENODATA:
+ return INTEL_PT_ERR_NODATA;
+ case -EILSEQ:
+ return INTEL_PT_ERR_NOINSN;
+ case -ENOENT:
+ return INTEL_PT_ERR_MISMAT;
+ case -EOVERFLOW:
+ return INTEL_PT_ERR_OVR;
+ case -ENOSPC:
+ return INTEL_PT_ERR_LOST;
+ case -ELOOP:
+ return INTEL_PT_ERR_NELOOP;
+ default:
+ return INTEL_PT_ERR_UNK;
+ }
+}
+
+static const char *intel_pt_err_msgs[] = {
+ [INTEL_PT_ERR_NOMEM] = "Memory allocation failed",
+ [INTEL_PT_ERR_INTERN] = "Internal error",
+ [INTEL_PT_ERR_BADPKT] = "Bad packet",
+ [INTEL_PT_ERR_NODATA] = "No more data",
+ [INTEL_PT_ERR_NOINSN] = "Failed to get instruction",
+ [INTEL_PT_ERR_MISMAT] = "Trace doesn't match instruction",
+ [INTEL_PT_ERR_OVR] = "Overflow packet",
+ [INTEL_PT_ERR_LOST] = "Lost trace data",
+ [INTEL_PT_ERR_UNK] = "Unknown error!",
+ [INTEL_PT_ERR_NELOOP] = "Never-ending loop",
+};
+
+int intel_pt__strerror(int code, char *buf, size_t buflen)
+{
+ if (code < 1 || code > INTEL_PT_ERR_MAX)
+ code = INTEL_PT_ERR_UNK;
+ strlcpy(buf, intel_pt_err_msgs[code], buflen);
+ return 0;
+}
+
+static uint64_t intel_pt_calc_ip(struct intel_pt_decoder *decoder,
+ const struct intel_pt_pkt *packet,
+ uint64_t last_ip)
+{
+ uint64_t ip;
+
+ switch (packet->count) {
+ case 2:
+ ip = (last_ip & (uint64_t)0xffffffffffff0000ULL) |
+ packet->payload;
+ break;
+ case 4:
+ ip = (last_ip & (uint64_t)0xffffffff00000000ULL) |
+ packet->payload;
+ break;
+ case 6:
+ ip = packet->payload;
+ break;
+ default:
+ return 0;
+ }
+
+ if (ip & decoder->sign_bit)
+ return ip | decoder->sign_bits;
+
+ return ip;
+}
+
+static inline void intel_pt_set_last_ip(struct intel_pt_decoder *decoder)
+{
+ decoder->last_ip = intel_pt_calc_ip(decoder, &decoder->packet,
+ decoder->last_ip);
+}
+
+static inline void intel_pt_set_ip(struct intel_pt_decoder *decoder)
+{
+ intel_pt_set_last_ip(decoder);
+ decoder->ip = decoder->last_ip;
+}
+
+static void intel_pt_decoder_log_packet(struct intel_pt_decoder *decoder)
+{
+ intel_pt_log_packet(&decoder->packet, decoder->pkt_len, decoder->pos,
+ decoder->buf);
+}
+
+static int intel_pt_bug(struct intel_pt_decoder *decoder)
+{
+ intel_pt_log("ERROR: Internal error\n");
+ decoder->pkt_state = INTEL_PT_STATE_NO_PSB;
+ return -ENOSYS;
+}
+
+static inline void intel_pt_clear_tx_flags(struct intel_pt_decoder *decoder)
+{
+ decoder->tx_flags = 0;
+}
+
+static inline void intel_pt_update_in_tx(struct intel_pt_decoder *decoder)
+{
+ decoder->tx_flags = decoder->packet.payload & INTEL_PT_IN_TX;
+}
+
+static int intel_pt_bad_packet(struct intel_pt_decoder *decoder)
+{
+ intel_pt_clear_tx_flags(decoder);
+ decoder->have_tma = false;
+ decoder->pkt_len = 1;
+ decoder->pkt_step = 1;
+ intel_pt_decoder_log_packet(decoder);
+ if (decoder->pkt_state != INTEL_PT_STATE_NO_PSB) {
+ intel_pt_log("ERROR: Bad packet\n");
+ decoder->pkt_state = INTEL_PT_STATE_ERR1;
+ }
+ return -EBADMSG;
+}
+
+static int intel_pt_get_data(struct intel_pt_decoder *decoder)
+{
+ struct intel_pt_buffer buffer = { .buf = 0, };
+ int ret;
+
+ decoder->pkt_step = 0;
+
+ intel_pt_log("Getting more data\n");
+ ret = decoder->get_trace(&buffer, decoder->data);
+ if (ret)
+ return ret;
+ decoder->buf = buffer.buf;
+ decoder->len = buffer.len;
+ if (!decoder->len) {
+ intel_pt_log("No more data\n");
+ return -ENODATA;
+ }
+ if (!buffer.consecutive) {
+ decoder->ip = 0;
+ decoder->pkt_state = INTEL_PT_STATE_NO_PSB;
+ decoder->ref_timestamp = buffer.ref_timestamp;
+ decoder->timestamp = 0;
+ decoder->have_tma = false;
+ decoder->state.trace_nr = buffer.trace_nr;
+ intel_pt_log("Reference timestamp 0x%" PRIx64 "\n",
+ decoder->ref_timestamp);
+ return -ENOLINK;
+ }
+
+ return 0;
+}
+
+static int intel_pt_get_next_data(struct intel_pt_decoder *decoder)
+{
+ if (!decoder->next_buf)
+ return intel_pt_get_data(decoder);
+
+ decoder->buf = decoder->next_buf;
+ decoder->len = decoder->next_len;
+ decoder->next_buf = 0;
+ decoder->next_len = 0;
+ return 0;
+}
+
+static int intel_pt_get_split_packet(struct intel_pt_decoder *decoder)
+{
+ unsigned char *buf = decoder->temp_buf;
+ size_t old_len, len, n;
+ int ret;
+
+ old_len = decoder->len;
+ len = decoder->len;
+ memcpy(buf, decoder->buf, len);
+
+ ret = intel_pt_get_data(decoder);
+ if (ret) {
+ decoder->pos += old_len;
+ return ret < 0 ? ret : -EINVAL;
+ }
+
+ n = INTEL_PT_PKT_MAX_SZ - len;
+ if (n > decoder->len)
+ n = decoder->len;
+ memcpy(buf + len, decoder->buf, n);
+ len += n;
+
+ ret = intel_pt_get_packet(buf, len, &decoder->packet);
+ if (ret < (int)old_len) {
+ decoder->next_buf = decoder->buf;
+ decoder->next_len = decoder->len;
+ decoder->buf = buf;
+ decoder->len = old_len;
+ return intel_pt_bad_packet(decoder);
+ }
+
+ decoder->next_buf = decoder->buf + (ret - old_len);
+ decoder->next_len = decoder->len - (ret - old_len);
+
+ decoder->buf = buf;
+ decoder->len = ret;
+
+ return ret;
+}
+
+struct intel_pt_pkt_info {
+ struct intel_pt_decoder *decoder;
+ struct intel_pt_pkt packet;
+ uint64_t pos;
+ int pkt_len;
+ int last_packet_type;
+ void *data;
+};
+
+typedef int (*intel_pt_pkt_cb_t)(struct intel_pt_pkt_info *pkt_info);
+
+/* Lookahead packets in current buffer */
+static int intel_pt_pkt_lookahead(struct intel_pt_decoder *decoder,
+ intel_pt_pkt_cb_t cb, void *data)
+{
+ struct intel_pt_pkt_info pkt_info;
+ const unsigned char *buf = decoder->buf;
+ size_t len = decoder->len;
+ int ret;
+
+ pkt_info.decoder = decoder;
+ pkt_info.pos = decoder->pos;
+ pkt_info.pkt_len = decoder->pkt_step;
+ pkt_info.last_packet_type = decoder->last_packet_type;
+ pkt_info.data = data;
+
+ while (1) {
+ do {
+ pkt_info.pos += pkt_info.pkt_len;
+ buf += pkt_info.pkt_len;
+ len -= pkt_info.pkt_len;
+
+ if (!len)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ ret = intel_pt_get_packet(buf, len, &pkt_info.packet);
+ if (!ret)
+ return INTEL_PT_NEED_MORE_BYTES;
+ if (ret < 0)
+ return ret;
+
+ pkt_info.pkt_len = ret;
+ } while (pkt_info.packet.type == INTEL_PT_PAD);
+
+ ret = cb(&pkt_info);
+ if (ret)
+ return 0;
+
+ pkt_info.last_packet_type = pkt_info.packet.type;
+ }
+}
+
+struct intel_pt_calc_cyc_to_tsc_info {
+ uint64_t cycle_cnt;
+ unsigned int cbr;
+ uint32_t last_mtc;
+ uint64_t ctc_timestamp;
+ uint64_t ctc_delta;
+ uint64_t tsc_timestamp;
+ uint64_t timestamp;
+ bool have_tma;
+ bool from_mtc;
+ double cbr_cyc_to_tsc;
+};
+
+static int intel_pt_calc_cyc_cb(struct intel_pt_pkt_info *pkt_info)
+{
+ struct intel_pt_decoder *decoder = pkt_info->decoder;
+ struct intel_pt_calc_cyc_to_tsc_info *data = pkt_info->data;
+ uint64_t timestamp;
+ double cyc_to_tsc;
+ unsigned int cbr;
+ uint32_t mtc, mtc_delta, ctc, fc, ctc_rem;
+
+ switch (pkt_info->packet.type) {
+ case INTEL_PT_TNT:
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ case INTEL_PT_FUP:
+ case INTEL_PT_PSB:
+ case INTEL_PT_PIP:
+ case INTEL_PT_MODE_EXEC:
+ case INTEL_PT_MODE_TSX:
+ case INTEL_PT_PSBEND:
+ case INTEL_PT_PAD:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ return 0;
+
+ case INTEL_PT_MTC:
+ if (!data->have_tma)
+ return 0;
+
+ mtc = pkt_info->packet.payload;
+ if (mtc > data->last_mtc)
+ mtc_delta = mtc - data->last_mtc;
+ else
+ mtc_delta = mtc + 256 - data->last_mtc;
+ data->ctc_delta += mtc_delta << decoder->mtc_shift;
+ data->last_mtc = mtc;
+
+ if (decoder->tsc_ctc_mult) {
+ timestamp = data->ctc_timestamp +
+ data->ctc_delta * decoder->tsc_ctc_mult;
+ } else {
+ timestamp = data->ctc_timestamp +
+ multdiv(data->ctc_delta,
+ decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+
+ if (timestamp < data->timestamp)
+ return 1;
+
+ if (pkt_info->last_packet_type != INTEL_PT_CYC) {
+ data->timestamp = timestamp;
+ return 0;
+ }
+
+ break;
+
+ case INTEL_PT_TSC:
+ timestamp = pkt_info->packet.payload |
+ (data->timestamp & (0xffULL << 56));
+ if (data->from_mtc && timestamp < data->timestamp &&
+ data->timestamp - timestamp < decoder->tsc_slip)
+ return 1;
+ while (timestamp < data->timestamp)
+ timestamp += (1ULL << 56);
+ if (pkt_info->last_packet_type != INTEL_PT_CYC) {
+ if (data->from_mtc)
+ return 1;
+ data->tsc_timestamp = timestamp;
+ data->timestamp = timestamp;
+ return 0;
+ }
+ break;
+
+ case INTEL_PT_TMA:
+ if (data->from_mtc)
+ return 1;
+
+ if (!decoder->tsc_ctc_ratio_d)
+ return 0;
+
+ ctc = pkt_info->packet.payload;
+ fc = pkt_info->packet.count;
+ ctc_rem = ctc & decoder->ctc_rem_mask;
+
+ data->last_mtc = (ctc >> decoder->mtc_shift) & 0xff;
+
+ data->ctc_timestamp = data->tsc_timestamp - fc;
+ if (decoder->tsc_ctc_mult) {
+ data->ctc_timestamp -= ctc_rem * decoder->tsc_ctc_mult;
+ } else {
+ data->ctc_timestamp -=
+ multdiv(ctc_rem, decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+
+ data->ctc_delta = 0;
+ data->have_tma = true;
+
+ return 0;
+
+ case INTEL_PT_CYC:
+ data->cycle_cnt += pkt_info->packet.payload;
+ return 0;
+
+ case INTEL_PT_CBR:
+ cbr = pkt_info->packet.payload;
+ if (data->cbr && data->cbr != cbr)
+ return 1;
+ data->cbr = cbr;
+ data->cbr_cyc_to_tsc = decoder->max_non_turbo_ratio_fp / cbr;
+ return 0;
+
+ case INTEL_PT_TIP_PGD:
+ case INTEL_PT_TRACESTOP:
+ case INTEL_PT_OVF:
+ case INTEL_PT_BAD: /* Does not happen */
+ default:
+ return 1;
+ }
+
+ if (!data->cbr && decoder->cbr) {
+ data->cbr = decoder->cbr;
+ data->cbr_cyc_to_tsc = decoder->cbr_cyc_to_tsc;
+ }
+
+ if (!data->cycle_cnt)
+ return 1;
+
+ cyc_to_tsc = (double)(timestamp - decoder->timestamp) / data->cycle_cnt;
+
+ if (data->cbr && cyc_to_tsc > data->cbr_cyc_to_tsc &&
+ cyc_to_tsc / data->cbr_cyc_to_tsc > 1.25) {
+ intel_pt_log("Timestamp: calculated %g TSC ticks per cycle too big (c.f. CBR-based value %g), pos " x64_fmt "\n",
+ cyc_to_tsc, data->cbr_cyc_to_tsc, pkt_info->pos);
+ return 1;
+ }
+
+ decoder->calc_cyc_to_tsc = cyc_to_tsc;
+ decoder->have_calc_cyc_to_tsc = true;
+
+ if (data->cbr) {
+ intel_pt_log("Timestamp: calculated %g TSC ticks per cycle c.f. CBR-based value %g, pos " x64_fmt "\n",
+ cyc_to_tsc, data->cbr_cyc_to_tsc, pkt_info->pos);
+ } else {
+ intel_pt_log("Timestamp: calculated %g TSC ticks per cycle c.f. unknown CBR-based value, pos " x64_fmt "\n",
+ cyc_to_tsc, pkt_info->pos);
+ }
+
+ return 1;
+}
+
+static void intel_pt_calc_cyc_to_tsc(struct intel_pt_decoder *decoder,
+ bool from_mtc)
+{
+ struct intel_pt_calc_cyc_to_tsc_info data = {
+ .cycle_cnt = 0,
+ .cbr = 0,
+ .last_mtc = decoder->last_mtc,
+ .ctc_timestamp = decoder->ctc_timestamp,
+ .ctc_delta = decoder->ctc_delta,
+ .tsc_timestamp = decoder->tsc_timestamp,
+ .timestamp = decoder->timestamp,
+ .have_tma = decoder->have_tma,
+ .from_mtc = from_mtc,
+ .cbr_cyc_to_tsc = 0,
+ };
+
+ intel_pt_pkt_lookahead(decoder, intel_pt_calc_cyc_cb, &data);
+}
+
+static int intel_pt_get_next_packet(struct intel_pt_decoder *decoder)
+{
+ int ret;
+
+ decoder->last_packet_type = decoder->packet.type;
+
+ do {
+ decoder->pos += decoder->pkt_step;
+ decoder->buf += decoder->pkt_step;
+ decoder->len -= decoder->pkt_step;
+
+ if (!decoder->len) {
+ ret = intel_pt_get_next_data(decoder);
+ if (ret)
+ return ret;
+ }
+
+ ret = intel_pt_get_packet(decoder->buf, decoder->len,
+ &decoder->packet);
+ if (ret == INTEL_PT_NEED_MORE_BYTES &&
+ decoder->len < INTEL_PT_PKT_MAX_SZ && !decoder->next_buf) {
+ ret = intel_pt_get_split_packet(decoder);
+ if (ret < 0)
+ return ret;
+ }
+ if (ret <= 0)
+ return intel_pt_bad_packet(decoder);
+
+ decoder->pkt_len = ret;
+ decoder->pkt_step = ret;
+ intel_pt_decoder_log_packet(decoder);
+ } while (decoder->packet.type == INTEL_PT_PAD);
+
+ return 0;
+}
+
+static uint64_t intel_pt_next_period(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp, masked_timestamp;
+
+ timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
+ masked_timestamp = timestamp & decoder->period_mask;
+ if (decoder->continuous_period) {
+ if (masked_timestamp != decoder->last_masked_timestamp)
+ return 1;
+ } else {
+ timestamp += 1;
+ masked_timestamp = timestamp & decoder->period_mask;
+ if (masked_timestamp != decoder->last_masked_timestamp) {
+ decoder->last_masked_timestamp = masked_timestamp;
+ decoder->continuous_period = true;
+ }
+ }
+ return decoder->period_ticks - (timestamp - masked_timestamp);
+}
+
+static uint64_t intel_pt_next_sample(struct intel_pt_decoder *decoder)
+{
+ switch (decoder->period_type) {
+ case INTEL_PT_PERIOD_INSTRUCTIONS:
+ return decoder->period - decoder->period_insn_cnt;
+ case INTEL_PT_PERIOD_TICKS:
+ return intel_pt_next_period(decoder);
+ case INTEL_PT_PERIOD_NONE:
+ case INTEL_PT_PERIOD_MTC:
+ default:
+ return 0;
+ }
+}
+
+static void intel_pt_sample_insn(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp, masked_timestamp;
+
+ switch (decoder->period_type) {
+ case INTEL_PT_PERIOD_INSTRUCTIONS:
+ decoder->period_insn_cnt = 0;
+ break;
+ case INTEL_PT_PERIOD_TICKS:
+ timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
+ masked_timestamp = timestamp & decoder->period_mask;
+ decoder->last_masked_timestamp = masked_timestamp;
+ break;
+ case INTEL_PT_PERIOD_NONE:
+ case INTEL_PT_PERIOD_MTC:
+ default:
+ break;
+ }
+
+ decoder->state.type |= INTEL_PT_INSTRUCTION;
+}
+
+static int intel_pt_walk_insn(struct intel_pt_decoder *decoder,
+ struct intel_pt_insn *intel_pt_insn, uint64_t ip)
+{
+ uint64_t max_insn_cnt, insn_cnt = 0;
+ int err;
+
+ if (!decoder->mtc_insn)
+ decoder->mtc_insn = true;
+
+ max_insn_cnt = intel_pt_next_sample(decoder);
+
+ err = decoder->walk_insn(intel_pt_insn, &insn_cnt, &decoder->ip, ip,
+ max_insn_cnt, decoder->data);
+
+ decoder->tot_insn_cnt += insn_cnt;
+ decoder->timestamp_insn_cnt += insn_cnt;
+ decoder->period_insn_cnt += insn_cnt;
+
+ if (err) {
+ decoder->no_progress = 0;
+ decoder->pkt_state = INTEL_PT_STATE_ERR2;
+ intel_pt_log_at("ERROR: Failed to get instruction",
+ decoder->ip);
+ if (err == -ENOENT)
+ return -ENOLINK;
+ return -EILSEQ;
+ }
+
+ if (ip && decoder->ip == ip) {
+ err = -EAGAIN;
+ goto out;
+ }
+
+ if (max_insn_cnt && insn_cnt >= max_insn_cnt)
+ intel_pt_sample_insn(decoder);
+
+ if (intel_pt_insn->branch == INTEL_PT_BR_NO_BRANCH) {
+ decoder->state.type = INTEL_PT_INSTRUCTION;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ decoder->ip += intel_pt_insn->length;
+ err = INTEL_PT_RETURN;
+ goto out;
+ }
+
+ if (intel_pt_insn->op == INTEL_PT_OP_CALL) {
+ /* Zero-length calls are excluded */
+ if (intel_pt_insn->branch != INTEL_PT_BR_UNCONDITIONAL ||
+ intel_pt_insn->rel) {
+ err = intel_pt_push(&decoder->stack, decoder->ip +
+ intel_pt_insn->length);
+ if (err)
+ goto out;
+ }
+ } else if (intel_pt_insn->op == INTEL_PT_OP_RET) {
+ decoder->ret_addr = intel_pt_pop(&decoder->stack);
+ }
+
+ if (intel_pt_insn->branch == INTEL_PT_BR_UNCONDITIONAL) {
+ int cnt = decoder->no_progress++;
+
+ decoder->state.from_ip = decoder->ip;
+ decoder->ip += intel_pt_insn->length +
+ intel_pt_insn->rel;
+ decoder->state.to_ip = decoder->ip;
+ err = INTEL_PT_RETURN;
+
+ /*
+ * Check for being stuck in a loop. This can happen if a
+ * decoder error results in the decoder erroneously setting the
+ * ip to an address that is itself in an infinite loop that
+ * consumes no packets. When that happens, there must be an
+ * unconditional branch.
+ */
+ if (cnt) {
+ if (cnt == 1) {
+ decoder->stuck_ip = decoder->state.to_ip;
+ decoder->stuck_ip_prd = 1;
+ decoder->stuck_ip_cnt = 1;
+ } else if (cnt > INTEL_PT_MAX_LOOPS ||
+ decoder->state.to_ip == decoder->stuck_ip) {
+ intel_pt_log_at("ERROR: Never-ending loop",
+ decoder->state.to_ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ err = -ELOOP;
+ goto out;
+ } else if (!--decoder->stuck_ip_cnt) {
+ decoder->stuck_ip_prd += 1;
+ decoder->stuck_ip_cnt = decoder->stuck_ip_prd;
+ decoder->stuck_ip = decoder->state.to_ip;
+ }
+ }
+ goto out_no_progress;
+ }
+out:
+ decoder->no_progress = 0;
+out_no_progress:
+ decoder->state.insn_op = intel_pt_insn->op;
+ decoder->state.insn_len = intel_pt_insn->length;
+
+ if (decoder->tx_flags & INTEL_PT_IN_TX)
+ decoder->state.flags |= INTEL_PT_IN_TX;
+
+ return err;
+}
+
+static int intel_pt_walk_fup(struct intel_pt_decoder *decoder)
+{
+ struct intel_pt_insn intel_pt_insn;
+ uint64_t ip;
+ int err;
+
+ ip = decoder->last_ip;
+
+ while (1) {
+ err = intel_pt_walk_insn(decoder, &intel_pt_insn, ip);
+ if (err == INTEL_PT_RETURN)
+ return 0;
+ if (err == -EAGAIN) {
+ if (decoder->set_fup_tx_flags) {
+ decoder->set_fup_tx_flags = false;
+ decoder->tx_flags = decoder->fup_tx_flags;
+ decoder->state.type = INTEL_PT_TRANSACTION;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ decoder->state.flags = decoder->fup_tx_flags;
+ return 0;
+ }
+ return err;
+ }
+ decoder->set_fup_tx_flags = false;
+ if (err)
+ return err;
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_INDIRECT) {
+ intel_pt_log_at("ERROR: Unexpected indirect branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ return -ENOENT;
+ }
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_CONDITIONAL) {
+ intel_pt_log_at("ERROR: Unexpected conditional branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ return -ENOENT;
+ }
+
+ intel_pt_bug(decoder);
+ }
+}
+
+static int intel_pt_walk_tip(struct intel_pt_decoder *decoder)
+{
+ struct intel_pt_insn intel_pt_insn;
+ int err;
+
+ err = intel_pt_walk_insn(decoder, &intel_pt_insn, 0);
+ if (err == INTEL_PT_RETURN)
+ return 0;
+ if (err)
+ return err;
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_INDIRECT) {
+ if (decoder->pkt_state == INTEL_PT_STATE_TIP_PGD) {
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ if (decoder->packet.count != 0)
+ decoder->ip = decoder->last_ip;
+ } else {
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ decoder->state.from_ip = decoder->ip;
+ if (decoder->packet.count == 0) {
+ decoder->state.to_ip = 0;
+ } else {
+ decoder->state.to_ip = decoder->last_ip;
+ decoder->ip = decoder->last_ip;
+ }
+ }
+ return 0;
+ }
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_CONDITIONAL) {
+ intel_pt_log_at("ERROR: Conditional branch when expecting indirect branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ return -ENOENT;
+ }
+
+ return intel_pt_bug(decoder);
+}
+
+static int intel_pt_walk_tnt(struct intel_pt_decoder *decoder)
+{
+ struct intel_pt_insn intel_pt_insn;
+ int err;
+
+ while (1) {
+ err = intel_pt_walk_insn(decoder, &intel_pt_insn, 0);
+ if (err == INTEL_PT_RETURN)
+ return 0;
+ if (err)
+ return err;
+
+ if (intel_pt_insn.op == INTEL_PT_OP_RET) {
+ if (!decoder->return_compression) {
+ intel_pt_log_at("ERROR: RET when expecting conditional branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+ }
+ if (!decoder->ret_addr) {
+ intel_pt_log_at("ERROR: Bad RET compression (stack empty)",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+ }
+ if (!(decoder->tnt.payload & BIT63)) {
+ intel_pt_log_at("ERROR: Bad RET compression (TNT=N)",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+ }
+ decoder->tnt.count -= 1;
+ if (!decoder->tnt.count)
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ decoder->tnt.payload <<= 1;
+ decoder->state.from_ip = decoder->ip;
+ decoder->ip = decoder->ret_addr;
+ decoder->state.to_ip = decoder->ip;
+ return 0;
+ }
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_INDIRECT) {
+ /* Handle deferred TIPs */
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+ if (decoder->packet.type != INTEL_PT_TIP ||
+ decoder->packet.count == 0) {
+ intel_pt_log_at("ERROR: Missing deferred TIP for indirect branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ decoder->pkt_step = 0;
+ return -ENOENT;
+ }
+ intel_pt_set_last_ip(decoder);
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = decoder->last_ip;
+ decoder->ip = decoder->last_ip;
+ return 0;
+ }
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_CONDITIONAL) {
+ decoder->tnt.count -= 1;
+ if (!decoder->tnt.count)
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ if (decoder->tnt.payload & BIT63) {
+ decoder->tnt.payload <<= 1;
+ decoder->state.from_ip = decoder->ip;
+ decoder->ip += intel_pt_insn.length +
+ intel_pt_insn.rel;
+ decoder->state.to_ip = decoder->ip;
+ return 0;
+ }
+ /* Instruction sample for a non-taken branch */
+ if (decoder->state.type & INTEL_PT_INSTRUCTION) {
+ decoder->tnt.payload <<= 1;
+ decoder->state.type = INTEL_PT_INSTRUCTION;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ decoder->ip += intel_pt_insn.length;
+ return 0;
+ }
+ decoder->ip += intel_pt_insn.length;
+ if (!decoder->tnt.count)
+ return -EAGAIN;
+ decoder->tnt.payload <<= 1;
+ continue;
+ }
+
+ return intel_pt_bug(decoder);
+ }
+}
+
+static int intel_pt_mode_tsx(struct intel_pt_decoder *decoder, bool *no_tip)
+{
+ unsigned int fup_tx_flags;
+ int err;
+
+ fup_tx_flags = decoder->packet.payload &
+ (INTEL_PT_IN_TX | INTEL_PT_ABORT_TX);
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+ if (decoder->packet.type == INTEL_PT_FUP) {
+ decoder->fup_tx_flags = fup_tx_flags;
+ decoder->set_fup_tx_flags = true;
+ if (!(decoder->fup_tx_flags & INTEL_PT_ABORT_TX))
+ *no_tip = true;
+ } else {
+ intel_pt_log_at("ERROR: Missing FUP after MODE.TSX",
+ decoder->pos);
+ intel_pt_update_in_tx(decoder);
+ }
+ return 0;
+}
+
+static void intel_pt_calc_tsc_timestamp(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp;
+
+ decoder->have_tma = false;
+
+ if (decoder->ref_timestamp) {
+ timestamp = decoder->packet.payload |
+ (decoder->ref_timestamp & (0xffULL << 56));
+ if (timestamp < decoder->ref_timestamp) {
+ if (decoder->ref_timestamp - timestamp > (1ULL << 55))
+ timestamp += (1ULL << 56);
+ } else {
+ if (timestamp - decoder->ref_timestamp > (1ULL << 55))
+ timestamp -= (1ULL << 56);
+ }
+ decoder->tsc_timestamp = timestamp;
+ decoder->timestamp = timestamp;
+ decoder->ref_timestamp = 0;
+ decoder->timestamp_insn_cnt = 0;
+ } else if (decoder->timestamp) {
+ timestamp = decoder->packet.payload |
+ (decoder->timestamp & (0xffULL << 56));
+ decoder->tsc_timestamp = timestamp;
+ if (timestamp < decoder->timestamp &&
+ decoder->timestamp - timestamp < decoder->tsc_slip) {
+ intel_pt_log_to("Suppressing backwards timestamp",
+ timestamp);
+ timestamp = decoder->timestamp;
+ }
+ while (timestamp < decoder->timestamp) {
+ intel_pt_log_to("Wraparound timestamp", timestamp);
+ timestamp += (1ULL << 56);
+ decoder->tsc_timestamp = timestamp;
+ }
+ decoder->timestamp = timestamp;
+ decoder->timestamp_insn_cnt = 0;
+ }
+
+ if (decoder->last_packet_type == INTEL_PT_CYC) {
+ decoder->cyc_ref_timestamp = decoder->timestamp;
+ decoder->cycle_cnt = 0;
+ decoder->have_calc_cyc_to_tsc = false;
+ intel_pt_calc_cyc_to_tsc(decoder, false);
+ }
+
+ intel_pt_log_to("Setting timestamp", decoder->timestamp);
+}
+
+static int intel_pt_overflow(struct intel_pt_decoder *decoder)
+{
+ intel_pt_log("ERROR: Buffer overflow\n");
+ intel_pt_clear_tx_flags(decoder);
+ decoder->have_tma = false;
+ decoder->cbr = 0;
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ decoder->overflow = true;
+ return -EOVERFLOW;
+}
+
+static void intel_pt_calc_tma(struct intel_pt_decoder *decoder)
+{
+ uint32_t ctc = decoder->packet.payload;
+ uint32_t fc = decoder->packet.count;
+ uint32_t ctc_rem = ctc & decoder->ctc_rem_mask;
+
+ if (!decoder->tsc_ctc_ratio_d)
+ return;
+
+ decoder->last_mtc = (ctc >> decoder->mtc_shift) & 0xff;
+ decoder->ctc_timestamp = decoder->tsc_timestamp - fc;
+ if (decoder->tsc_ctc_mult) {
+ decoder->ctc_timestamp -= ctc_rem * decoder->tsc_ctc_mult;
+ } else {
+ decoder->ctc_timestamp -= multdiv(ctc_rem,
+ decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+ decoder->ctc_delta = 0;
+ decoder->have_tma = true;
+ intel_pt_log("CTC timestamp " x64_fmt " last MTC %#x CTC rem %#x\n",
+ decoder->ctc_timestamp, decoder->last_mtc, ctc_rem);
+}
+
+static void intel_pt_calc_mtc_timestamp(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp;
+ uint32_t mtc, mtc_delta;
+
+ if (!decoder->have_tma)
+ return;
+
+ mtc = decoder->packet.payload;
+
+ if (mtc > decoder->last_mtc)
+ mtc_delta = mtc - decoder->last_mtc;
+ else
+ mtc_delta = mtc + 256 - decoder->last_mtc;
+
+ decoder->ctc_delta += mtc_delta << decoder->mtc_shift;
+
+ if (decoder->tsc_ctc_mult) {
+ timestamp = decoder->ctc_timestamp +
+ decoder->ctc_delta * decoder->tsc_ctc_mult;
+ } else {
+ timestamp = decoder->ctc_timestamp +
+ multdiv(decoder->ctc_delta,
+ decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+
+ if (timestamp < decoder->timestamp)
+ intel_pt_log("Suppressing MTC timestamp " x64_fmt " less than current timestamp " x64_fmt "\n",
+ timestamp, decoder->timestamp);
+ else
+ decoder->timestamp = timestamp;
+
+ decoder->timestamp_insn_cnt = 0;
+ decoder->last_mtc = mtc;
+
+ if (decoder->last_packet_type == INTEL_PT_CYC) {
+ decoder->cyc_ref_timestamp = decoder->timestamp;
+ decoder->cycle_cnt = 0;
+ decoder->have_calc_cyc_to_tsc = false;
+ intel_pt_calc_cyc_to_tsc(decoder, true);
+ }
+}
+
+static void intel_pt_calc_cbr(struct intel_pt_decoder *decoder)
+{
+ unsigned int cbr = decoder->packet.payload;
+
+ if (decoder->cbr == cbr)
+ return;
+
+ decoder->cbr = cbr;
+ decoder->cbr_cyc_to_tsc = decoder->max_non_turbo_ratio_fp / cbr;
+}
+
+static void intel_pt_calc_cyc_timestamp(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp = decoder->cyc_ref_timestamp;
+
+ decoder->have_cyc = true;
+
+ decoder->cycle_cnt += decoder->packet.payload;
+
+ if (!decoder->cyc_ref_timestamp)
+ return;
+
+ if (decoder->have_calc_cyc_to_tsc)
+ timestamp += decoder->cycle_cnt * decoder->calc_cyc_to_tsc;
+ else if (decoder->cbr)
+ timestamp += decoder->cycle_cnt * decoder->cbr_cyc_to_tsc;
+ else
+ return;
+
+ if (timestamp < decoder->timestamp)
+ intel_pt_log("Suppressing CYC timestamp " x64_fmt " less than current timestamp " x64_fmt "\n",
+ timestamp, decoder->timestamp);
+ else
+ decoder->timestamp = timestamp;
+}
+
+/* Walk PSB+ packets when already in sync. */
+static int intel_pt_walk_psbend(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+
+ switch (decoder->packet.type) {
+ case INTEL_PT_PSBEND:
+ return 0;
+
+ case INTEL_PT_TIP_PGD:
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ case INTEL_PT_TNT:
+ case INTEL_PT_TRACESTOP:
+ case INTEL_PT_BAD:
+ case INTEL_PT_PSB:
+ decoder->have_tma = false;
+ intel_pt_log("ERROR: Unexpected packet\n");
+ return -EAGAIN;
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_TSC:
+ intel_pt_calc_tsc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TMA:
+ intel_pt_calc_tma(decoder);
+ break;
+
+ case INTEL_PT_CBR:
+ intel_pt_calc_cbr(decoder);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_FUP:
+ decoder->pge = true;
+ intel_pt_set_last_ip(decoder);
+ break;
+
+ case INTEL_PT_MODE_TSX:
+ intel_pt_update_in_tx(decoder);
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ if (decoder->period_type == INTEL_PT_PERIOD_MTC)
+ decoder->state.type |= INTEL_PT_INSTRUCTION;
+ break;
+
+ case INTEL_PT_CYC:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ default:
+ break;
+ }
+ }
+}
+
+static int intel_pt_walk_fup_tip(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ if (decoder->tx_flags & INTEL_PT_ABORT_TX) {
+ decoder->tx_flags = 0;
+ decoder->state.flags &= ~INTEL_PT_IN_TX;
+ decoder->state.flags |= INTEL_PT_ABORT_TX;
+ } else {
+ decoder->state.flags |= INTEL_PT_ASYNC;
+ }
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+
+ switch (decoder->packet.type) {
+ case INTEL_PT_TNT:
+ case INTEL_PT_FUP:
+ case INTEL_PT_TRACESTOP:
+ case INTEL_PT_PSB:
+ case INTEL_PT_TSC:
+ case INTEL_PT_TMA:
+ case INTEL_PT_CBR:
+ case INTEL_PT_MODE_TSX:
+ case INTEL_PT_BAD:
+ case INTEL_PT_PSBEND:
+ intel_pt_log("ERROR: Missing TIP after FUP\n");
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_TIP_PGD:
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ if (decoder->packet.count != 0) {
+ intel_pt_set_ip(decoder);
+ intel_pt_log("Omitting PGD ip " x64_fmt "\n",
+ decoder->ip);
+ }
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ return 0;
+
+ case INTEL_PT_TIP_PGE:
+ decoder->pge = true;
+ intel_pt_log("Omitting PGE ip " x64_fmt "\n",
+ decoder->ip);
+ decoder->state.from_ip = 0;
+ if (decoder->packet.count == 0) {
+ decoder->state.to_ip = 0;
+ } else {
+ intel_pt_set_ip(decoder);
+ decoder->state.to_ip = decoder->ip;
+ }
+ return 0;
+
+ case INTEL_PT_TIP:
+ decoder->state.from_ip = decoder->ip;
+ if (decoder->packet.count == 0) {
+ decoder->state.to_ip = 0;
+ } else {
+ intel_pt_set_ip(decoder);
+ decoder->state.to_ip = decoder->ip;
+ }
+ return 0;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ if (decoder->period_type == INTEL_PT_PERIOD_MTC)
+ decoder->state.type |= INTEL_PT_INSTRUCTION;
+ break;
+
+ case INTEL_PT_CYC:
+ intel_pt_calc_cyc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ break;
+
+ default:
+ return intel_pt_bug(decoder);
+ }
+ }
+}
+
+static int intel_pt_walk_trace(struct intel_pt_decoder *decoder)
+{
+ bool no_tip = false;
+ int err;
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+next:
+ switch (decoder->packet.type) {
+ case INTEL_PT_TNT:
+ if (!decoder->packet.count)
+ break;
+ decoder->tnt = decoder->packet;
+ decoder->pkt_state = INTEL_PT_STATE_TNT;
+ err = intel_pt_walk_tnt(decoder);
+ if (err == -EAGAIN)
+ break;
+ return err;
+
+ case INTEL_PT_TIP_PGD:
+ if (decoder->packet.count != 0)
+ intel_pt_set_last_ip(decoder);
+ decoder->pkt_state = INTEL_PT_STATE_TIP_PGD;
+ return intel_pt_walk_tip(decoder);
+
+ case INTEL_PT_TIP_PGE: {
+ decoder->pge = true;
+ if (decoder->packet.count == 0) {
+ intel_pt_log_at("Skipping zero TIP.PGE",
+ decoder->pos);
+ break;
+ }
+ intel_pt_set_ip(decoder);
+ decoder->state.from_ip = 0;
+ decoder->state.to_ip = decoder->ip;
+ return 0;
+ }
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_TIP:
+ if (decoder->packet.count != 0)
+ intel_pt_set_last_ip(decoder);
+ decoder->pkt_state = INTEL_PT_STATE_TIP;
+ return intel_pt_walk_tip(decoder);
+
+ case INTEL_PT_FUP:
+ if (decoder->packet.count == 0) {
+ intel_pt_log_at("Skipping zero FUP",
+ decoder->pos);
+ no_tip = false;
+ break;
+ }
+ intel_pt_set_last_ip(decoder);
+ err = intel_pt_walk_fup(decoder);
+ if (err != -EAGAIN) {
+ if (err)
+ return err;
+ if (no_tip)
+ decoder->pkt_state =
+ INTEL_PT_STATE_FUP_NO_TIP;
+ else
+ decoder->pkt_state = INTEL_PT_STATE_FUP;
+ return 0;
+ }
+ if (no_tip) {
+ no_tip = false;
+ break;
+ }
+ return intel_pt_walk_fup_tip(decoder);
+
+ case INTEL_PT_TRACESTOP:
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ intel_pt_clear_tx_flags(decoder);
+ decoder->have_tma = false;
+ break;
+
+ case INTEL_PT_PSB:
+ intel_pt_clear_stack(&decoder->stack);
+ err = intel_pt_walk_psbend(decoder);
+ if (err == -EAGAIN)
+ goto next;
+ if (err)
+ return err;
+ break;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ if (decoder->period_type != INTEL_PT_PERIOD_MTC)
+ break;
+ /*
+ * Ensure that there has been an instruction since the
+ * last MTC.
+ */
+ if (!decoder->mtc_insn)
+ break;
+ decoder->mtc_insn = false;
+ /* Ensure that there is a timestamp */
+ if (!decoder->timestamp)
+ break;
+ decoder->state.type = INTEL_PT_INSTRUCTION;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ decoder->mtc_insn = false;
+ return 0;
+
+ case INTEL_PT_TSC:
+ intel_pt_calc_tsc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TMA:
+ intel_pt_calc_tma(decoder);
+ break;
+
+ case INTEL_PT_CYC:
+ intel_pt_calc_cyc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_CBR:
+ intel_pt_calc_cbr(decoder);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_MODE_TSX:
+ /* MODE_TSX need not be followed by FUP */
+ if (!decoder->pge) {
+ intel_pt_update_in_tx(decoder);
+ break;
+ }
+ err = intel_pt_mode_tsx(decoder, &no_tip);
+ if (err)
+ return err;
+ goto next;
+
+ case INTEL_PT_BAD: /* Does not happen */
+ return intel_pt_bug(decoder);
+
+ case INTEL_PT_PSBEND:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ break;
+
+ default:
+ return intel_pt_bug(decoder);
+ }
+ }
+}
+
+/* Walk PSB+ packets to get in sync. */
+static int intel_pt_walk_psb(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+
+ switch (decoder->packet.type) {
+ case INTEL_PT_TIP_PGD:
+ decoder->continuous_period = false;
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ intel_pt_log("ERROR: Unexpected packet\n");
+ return -ENOENT;
+
+ case INTEL_PT_FUP:
+ decoder->pge = true;
+ if (decoder->last_ip || decoder->packet.count == 6 ||
+ decoder->packet.count == 0) {
+ uint64_t current_ip = decoder->ip;
+
+ intel_pt_set_ip(decoder);
+ if (current_ip)
+ intel_pt_log_to("Setting IP",
+ decoder->ip);
+ }
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TSC:
+ intel_pt_calc_tsc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TMA:
+ intel_pt_calc_tma(decoder);
+ break;
+
+ case INTEL_PT_CYC:
+ intel_pt_calc_cyc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_CBR:
+ intel_pt_calc_cbr(decoder);
+ break;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_MODE_TSX:
+ intel_pt_update_in_tx(decoder);
+ break;
+
+ case INTEL_PT_TRACESTOP:
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ intel_pt_clear_tx_flags(decoder);
+ case INTEL_PT_TNT:
+ decoder->have_tma = false;
+ intel_pt_log("ERROR: Unexpected packet\n");
+ if (decoder->ip)
+ decoder->pkt_state = INTEL_PT_STATE_ERR4;
+ else
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+
+ case INTEL_PT_BAD: /* Does not happen */
+ return intel_pt_bug(decoder);
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_PSBEND:
+ return 0;
+
+ case INTEL_PT_PSB:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ default:
+ break;
+ }
+ }
+}
+
+static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+
+ switch (decoder->packet.type) {
+ case INTEL_PT_TIP_PGD:
+ decoder->continuous_period = false;
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ decoder->pge = decoder->packet.type != INTEL_PT_TIP_PGD;
+ if (decoder->last_ip || decoder->packet.count == 6 ||
+ decoder->packet.count == 0)
+ intel_pt_set_ip(decoder);
+ if (decoder->ip)
+ return 0;
+ break;
+
+ case INTEL_PT_FUP:
+ if (decoder->overflow) {
+ if (decoder->last_ip ||
+ decoder->packet.count == 6 ||
+ decoder->packet.count == 0)
+ intel_pt_set_ip(decoder);
+ if (decoder->ip)
+ return 0;
+ }
+ if (decoder->packet.count)
+ intel_pt_set_last_ip(decoder);
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TSC:
+ intel_pt_calc_tsc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TMA:
+ intel_pt_calc_tma(decoder);
+ break;
+
+ case INTEL_PT_CYC:
+ intel_pt_calc_cyc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_CBR:
+ intel_pt_calc_cbr(decoder);
+ break;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_MODE_TSX:
+ intel_pt_update_in_tx(decoder);
+ break;
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_BAD: /* Does not happen */
+ return intel_pt_bug(decoder);
+
+ case INTEL_PT_TRACESTOP:
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ intel_pt_clear_tx_flags(decoder);
+ decoder->have_tma = false;
+ break;
+
+ case INTEL_PT_PSB:
+ err = intel_pt_walk_psb(decoder);
+ if (err)
+ return err;
+ if (decoder->ip) {
+ /* Do not have a sample */
+ decoder->state.type = 0;
+ return 0;
+ }
+ break;
+
+ case INTEL_PT_TNT:
+ case INTEL_PT_PSBEND:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ default:
+ break;
+ }
+ }
+}
+
+static int intel_pt_sync_ip(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ intel_pt_log("Scanning for full IP\n");
+ err = intel_pt_walk_to_ip(decoder);
+ if (err)
+ return err;
+
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ decoder->overflow = false;
+
+ decoder->state.from_ip = 0;
+ decoder->state.to_ip = decoder->ip;
+ intel_pt_log_to("Setting IP", decoder->ip);
+
+ return 0;
+}
+
+static int intel_pt_part_psb(struct intel_pt_decoder *decoder)
+{
+ const unsigned char *end = decoder->buf + decoder->len;
+ size_t i;
+
+ for (i = INTEL_PT_PSB_LEN - 1; i; i--) {
+ if (i > decoder->len)
+ continue;
+ if (!memcmp(end - i, INTEL_PT_PSB_STR, i))
+ return i;
+ }
+ return 0;
+}
+
+static int intel_pt_rest_psb(struct intel_pt_decoder *decoder, int part_psb)
+{
+ size_t rest_psb = INTEL_PT_PSB_LEN - part_psb;
+ const char *psb = INTEL_PT_PSB_STR;
+
+ if (rest_psb > decoder->len ||
+ memcmp(decoder->buf, psb + part_psb, rest_psb))
+ return 0;
+
+ return rest_psb;
+}
+
+static int intel_pt_get_split_psb(struct intel_pt_decoder *decoder,
+ int part_psb)
+{
+ int rest_psb, ret;
+
+ decoder->pos += decoder->len;
+ decoder->len = 0;
+
+ ret = intel_pt_get_next_data(decoder);
+ if (ret)
+ return ret;
+
+ rest_psb = intel_pt_rest_psb(decoder, part_psb);
+ if (!rest_psb)
+ return 0;
+
+ decoder->pos -= part_psb;
+ decoder->next_buf = decoder->buf + rest_psb;
+ decoder->next_len = decoder->len - rest_psb;
+ memcpy(decoder->temp_buf, INTEL_PT_PSB_STR, INTEL_PT_PSB_LEN);
+ decoder->buf = decoder->temp_buf;
+ decoder->len = INTEL_PT_PSB_LEN;
+
+ return 0;
+}
+
+static int intel_pt_scan_for_psb(struct intel_pt_decoder *decoder)
+{
+ unsigned char *next;
+ int ret;
+
+ intel_pt_log("Scanning for PSB\n");
+ while (1) {
+ if (!decoder->len) {
+ ret = intel_pt_get_next_data(decoder);
+ if (ret)
+ return ret;
+ }
+
+ next = memmem(decoder->buf, decoder->len, INTEL_PT_PSB_STR,
+ INTEL_PT_PSB_LEN);
+ if (!next) {
+ int part_psb;
+
+ part_psb = intel_pt_part_psb(decoder);
+ if (part_psb) {
+ ret = intel_pt_get_split_psb(decoder, part_psb);
+ if (ret)
+ return ret;
+ } else {
+ decoder->pos += decoder->len;
+ decoder->len = 0;
+ }
+ continue;
+ }
+
+ decoder->pkt_step = next - decoder->buf;
+ return intel_pt_get_next_packet(decoder);
+ }
+}
+
+static int intel_pt_sync(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ decoder->last_ip = 0;
+ decoder->ip = 0;
+ intel_pt_clear_stack(&decoder->stack);
+
+ err = intel_pt_scan_for_psb(decoder);
+ if (err)
+ return err;
+
+ decoder->pkt_state = INTEL_PT_STATE_NO_IP;
+
+ err = intel_pt_walk_psb(decoder);
+ if (err)
+ return err;
+
+ if (decoder->ip) {
+ decoder->state.type = 0; /* Do not have a sample */
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ } else {
+ return intel_pt_sync_ip(decoder);
+ }
+
+ return 0;
+}
+
+static uint64_t intel_pt_est_timestamp(struct intel_pt_decoder *decoder)
+{
+ uint64_t est = decoder->timestamp_insn_cnt << 1;
+
+ if (!decoder->cbr || !decoder->max_non_turbo_ratio)
+ goto out;
+
+ est *= decoder->max_non_turbo_ratio;
+ est /= decoder->cbr;
+out:
+ return decoder->timestamp + est;
+}
+
+const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ do {
+ decoder->state.type = INTEL_PT_BRANCH;
+ decoder->state.flags = 0;
+
+ switch (decoder->pkt_state) {
+ case INTEL_PT_STATE_NO_PSB:
+ err = intel_pt_sync(decoder);
+ break;
+ case INTEL_PT_STATE_NO_IP:
+ decoder->last_ip = 0;
+ /* Fall through */
+ case INTEL_PT_STATE_ERR_RESYNC:
+ err = intel_pt_sync_ip(decoder);
+ break;
+ case INTEL_PT_STATE_IN_SYNC:
+ err = intel_pt_walk_trace(decoder);
+ break;
+ case INTEL_PT_STATE_TNT:
+ err = intel_pt_walk_tnt(decoder);
+ if (err == -EAGAIN)
+ err = intel_pt_walk_trace(decoder);
+ break;
+ case INTEL_PT_STATE_TIP:
+ case INTEL_PT_STATE_TIP_PGD:
+ err = intel_pt_walk_tip(decoder);
+ break;
+ case INTEL_PT_STATE_FUP:
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ err = intel_pt_walk_fup(decoder);
+ if (err == -EAGAIN)
+ err = intel_pt_walk_fup_tip(decoder);
+ else if (!err)
+ decoder->pkt_state = INTEL_PT_STATE_FUP;
+ break;
+ case INTEL_PT_STATE_FUP_NO_TIP:
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ err = intel_pt_walk_fup(decoder);
+ if (err == -EAGAIN)
+ err = intel_pt_walk_trace(decoder);
+ break;
+ default:
+ err = intel_pt_bug(decoder);
+ break;
+ }
+ } while (err == -ENOLINK);
+
+ decoder->state.err = err ? intel_pt_ext_err(err) : 0;
+ decoder->state.timestamp = decoder->timestamp;
+ decoder->state.est_timestamp = intel_pt_est_timestamp(decoder);
+ decoder->state.cr3 = decoder->cr3;
+ decoder->state.tot_insn_cnt = decoder->tot_insn_cnt;
+
+ if (err)
+ decoder->state.from_ip = decoder->ip;
+
+ return &decoder->state;
+}
+
+static bool intel_pt_at_psb(unsigned char *buf, size_t len)
+{
+ if (len < INTEL_PT_PSB_LEN)
+ return false;
+ return memmem(buf, INTEL_PT_PSB_LEN, INTEL_PT_PSB_STR,
+ INTEL_PT_PSB_LEN);
+}
+
+/**
+ * intel_pt_next_psb - move buffer pointer to the start of the next PSB packet.
+ * @buf: pointer to buffer pointer
+ * @len: size of buffer
+ *
+ * Updates the buffer pointer to point to the start of the next PSB packet if
+ * there is one, otherwise the buffer pointer is unchanged. If @buf is updated,
+ * @len is adjusted accordingly.
+ *
+ * Return: %true if a PSB packet is found, %false otherwise.
+ */
+static bool intel_pt_next_psb(unsigned char **buf, size_t *len)
+{
+ unsigned char *next;
+
+ next = memmem(*buf, *len, INTEL_PT_PSB_STR, INTEL_PT_PSB_LEN);
+ if (next) {
+ *len -= next - *buf;
+ *buf = next;
+ return true;
+ }
+ return false;
+}
+
+/**
+ * intel_pt_step_psb - move buffer pointer to the start of the following PSB
+ * packet.
+ * @buf: pointer to buffer pointer
+ * @len: size of buffer
+ *
+ * Updates the buffer pointer to point to the start of the following PSB packet
+ * (skipping the PSB at @buf itself) if there is one, otherwise the buffer
+ * pointer is unchanged. If @buf is updated, @len is adjusted accordingly.
+ *
+ * Return: %true if a PSB packet is found, %false otherwise.
+ */
+static bool intel_pt_step_psb(unsigned char **buf, size_t *len)
+{
+ unsigned char *next;
+
+ if (!*len)
+ return false;
+
+ next = memmem(*buf + 1, *len - 1, INTEL_PT_PSB_STR, INTEL_PT_PSB_LEN);
+ if (next) {
+ *len -= next - *buf;
+ *buf = next;
+ return true;
+ }
+ return false;
+}
+
+/**
+ * intel_pt_last_psb - find the last PSB packet in a buffer.
+ * @buf: buffer
+ * @len: size of buffer
+ *
+ * This function finds the last PSB in a buffer.
+ *
+ * Return: A pointer to the last PSB in @buf if found, %NULL otherwise.
+ */
+static unsigned char *intel_pt_last_psb(unsigned char *buf, size_t len)
+{
+ const char *n = INTEL_PT_PSB_STR;
+ unsigned char *p;
+ size_t k;
+
+ if (len < INTEL_PT_PSB_LEN)
+ return NULL;
+
+ k = len - INTEL_PT_PSB_LEN + 1;
+ while (1) {
+ p = memrchr(buf, n[0], k);
+ if (!p)
+ return NULL;
+ if (!memcmp(p + 1, n + 1, INTEL_PT_PSB_LEN - 1))
+ return p;
+ k = p - buf;
+ if (!k)
+ return NULL;
+ }
+}
+
+/**
+ * intel_pt_next_tsc - find and return next TSC.
+ * @buf: buffer
+ * @len: size of buffer
+ * @tsc: TSC value returned
+ *
+ * Find a TSC packet in @buf and return the TSC value. This function assumes
+ * that @buf starts at a PSB and that PSB+ will contain TSC and so stops if a
+ * PSBEND packet is found.
+ *
+ * Return: %true if TSC is found, false otherwise.
+ */
+static bool intel_pt_next_tsc(unsigned char *buf, size_t len, uint64_t *tsc)
+{
+ struct intel_pt_pkt packet;
+ int ret;
+
+ while (len) {
+ ret = intel_pt_get_packet(buf, len, &packet);
+ if (ret <= 0)
+ return false;
+ if (packet.type == INTEL_PT_TSC) {
+ *tsc = packet.payload;
+ return true;
+ }
+ if (packet.type == INTEL_PT_PSBEND)
+ return false;
+ buf += ret;
+ len -= ret;
+ }
+ return false;
+}
+
+/**
+ * intel_pt_tsc_cmp - compare 7-byte TSCs.
+ * @tsc1: first TSC to compare
+ * @tsc2: second TSC to compare
+ *
+ * This function compares 7-byte TSC values allowing for the possibility that
+ * TSC wrapped around. Generally it is not possible to know if TSC has wrapped
+ * around so for that purpose this function assumes the absolute difference is
+ * less than half the maximum difference.
+ *
+ * Return: %-1 if @tsc1 is before @tsc2, %0 if @tsc1 == @tsc2, %1 if @tsc1 is
+ * after @tsc2.
+ */
+static int intel_pt_tsc_cmp(uint64_t tsc1, uint64_t tsc2)
+{
+ const uint64_t halfway = (1ULL << 55);
+
+ if (tsc1 == tsc2)
+ return 0;
+
+ if (tsc1 < tsc2) {
+ if (tsc2 - tsc1 < halfway)
+ return -1;
+ else
+ return 1;
+ } else {
+ if (tsc1 - tsc2 < halfway)
+ return 1;
+ else
+ return -1;
+ }
+}
+
+/**
+ * intel_pt_find_overlap_tsc - determine start of non-overlapped trace data
+ * using TSC.
+ * @buf_a: first buffer
+ * @len_a: size of first buffer
+ * @buf_b: second buffer
+ * @len_b: size of second buffer
+ *
+ * If the trace contains TSC we can look at the last TSC of @buf_a and the
+ * first TSC of @buf_b in order to determine if the buffers overlap, and then
+ * walk forward in @buf_b until a later TSC is found. A precondition is that
+ * @buf_a and @buf_b are positioned at a PSB.
+ *
+ * Return: A pointer into @buf_b from where non-overlapped data starts, or
+ * @buf_b + @len_b if there is no non-overlapped data.
+ */
+static unsigned char *intel_pt_find_overlap_tsc(unsigned char *buf_a,
+ size_t len_a,
+ unsigned char *buf_b,
+ size_t len_b)
+{
+ uint64_t tsc_a, tsc_b;
+ unsigned char *p;
+ size_t len;
+
+ p = intel_pt_last_psb(buf_a, len_a);
+ if (!p)
+ return buf_b; /* No PSB in buf_a => no overlap */
+
+ len = len_a - (p - buf_a);
+ if (!intel_pt_next_tsc(p, len, &tsc_a)) {
+ /* The last PSB+ in buf_a is incomplete, so go back one more */
+ len_a -= len;
+ p = intel_pt_last_psb(buf_a, len_a);
+ if (!p)
+ return buf_b; /* No full PSB+ => assume no overlap */
+ len = len_a - (p - buf_a);
+ if (!intel_pt_next_tsc(p, len, &tsc_a))
+ return buf_b; /* No TSC in buf_a => assume no overlap */
+ }
+
+ while (1) {
+ /* Ignore PSB+ with no TSC */
+ if (intel_pt_next_tsc(buf_b, len_b, &tsc_b) &&
+ intel_pt_tsc_cmp(tsc_a, tsc_b) < 0)
+ return buf_b; /* tsc_a < tsc_b => no overlap */
+
+ if (!intel_pt_step_psb(&buf_b, &len_b))
+ return buf_b + len_b; /* No PSB in buf_b => no data */
+ }
+}
+
+/**
+ * intel_pt_find_overlap - determine start of non-overlapped trace data.
+ * @buf_a: first buffer
+ * @len_a: size of first buffer
+ * @buf_b: second buffer
+ * @len_b: size of second buffer
+ * @have_tsc: can use TSC packets to detect overlap
+ *
+ * When trace samples or snapshots are recorded there is the possibility that
+ * the data overlaps. Note that, for the purposes of decoding, data is only
+ * useful if it begins with a PSB packet.
+ *
+ * Return: A pointer into @buf_b from where non-overlapped data starts, or
+ * @buf_b + @len_b if there is no non-overlapped data.
+ */
+unsigned char *intel_pt_find_overlap(unsigned char *buf_a, size_t len_a,
+ unsigned char *buf_b, size_t len_b,
+ bool have_tsc)
+{
+ unsigned char *found;
+
+ /* Buffer 'b' must start at PSB so throw away everything before that */
+ if (!intel_pt_next_psb(&buf_b, &len_b))
+ return buf_b + len_b; /* No PSB */
+
+ if (!intel_pt_next_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+
+ if (have_tsc) {
+ found = intel_pt_find_overlap_tsc(buf_a, len_a, buf_b, len_b);
+ if (found)
+ return found;
+ }
+
+ /*
+ * Buffer 'b' cannot end within buffer 'a' so, for comparison purposes,
+ * we can ignore the first part of buffer 'a'.
+ */
+ while (len_b < len_a) {
+ if (!intel_pt_step_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+ }
+
+ /* Now len_b >= len_a */
+ if (len_b > len_a) {
+ /* The leftover buffer 'b' must start at a PSB */
+ while (!intel_pt_at_psb(buf_b + len_a, len_b - len_a)) {
+ if (!intel_pt_step_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+ }
+ }
+
+ while (1) {
+ /* Potential overlap so check the bytes */
+ found = memmem(buf_a, len_a, buf_b, len_a);
+ if (found)
+ return buf_b + len_a;
+
+ /* Try again at next PSB in buffer 'a' */
+ if (!intel_pt_step_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+
+ /* The leftover buffer 'b' must start at a PSB */
+ while (!intel_pt_at_psb(buf_b + len_a, len_b - len_a)) {
+ if (!intel_pt_step_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+ }
+ }
+}
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
new file mode 100644
index 000000000000..02c38fec1c37
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
@@ -0,0 +1,109 @@
+/*
+ * intel_pt_decoder.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__INTEL_PT_DECODER_H__
+#define INCLUDE__INTEL_PT_DECODER_H__
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#include "intel-pt-insn-decoder.h"
+
+#define INTEL_PT_IN_TX (1 << 0)
+#define INTEL_PT_ABORT_TX (1 << 1)
+#define INTEL_PT_ASYNC (1 << 2)
+
+enum intel_pt_sample_type {
+ INTEL_PT_BRANCH = 1 << 0,
+ INTEL_PT_INSTRUCTION = 1 << 1,
+ INTEL_PT_TRANSACTION = 1 << 2,
+};
+
+enum intel_pt_period_type {
+ INTEL_PT_PERIOD_NONE,
+ INTEL_PT_PERIOD_INSTRUCTIONS,
+ INTEL_PT_PERIOD_TICKS,
+ INTEL_PT_PERIOD_MTC,
+};
+
+enum {
+ INTEL_PT_ERR_NOMEM = 1,
+ INTEL_PT_ERR_INTERN,
+ INTEL_PT_ERR_BADPKT,
+ INTEL_PT_ERR_NODATA,
+ INTEL_PT_ERR_NOINSN,
+ INTEL_PT_ERR_MISMAT,
+ INTEL_PT_ERR_OVR,
+ INTEL_PT_ERR_LOST,
+ INTEL_PT_ERR_UNK,
+ INTEL_PT_ERR_NELOOP,
+ INTEL_PT_ERR_MAX,
+};
+
+struct intel_pt_state {
+ enum intel_pt_sample_type type;
+ int err;
+ uint64_t from_ip;
+ uint64_t to_ip;
+ uint64_t cr3;
+ uint64_t tot_insn_cnt;
+ uint64_t timestamp;
+ uint64_t est_timestamp;
+ uint64_t trace_nr;
+ uint32_t flags;
+ enum intel_pt_insn_op insn_op;
+ int insn_len;
+};
+
+struct intel_pt_insn;
+
+struct intel_pt_buffer {
+ const unsigned char *buf;
+ size_t len;
+ bool consecutive;
+ uint64_t ref_timestamp;
+ uint64_t trace_nr;
+};
+
+struct intel_pt_params {
+ int (*get_trace)(struct intel_pt_buffer *buffer, void *data);
+ int (*walk_insn)(struct intel_pt_insn *intel_pt_insn,
+ uint64_t *insn_cnt_ptr, uint64_t *ip, uint64_t to_ip,
+ uint64_t max_insn_cnt, void *data);
+ void *data;
+ bool return_compression;
+ uint64_t period;
+ enum intel_pt_period_type period_type;
+ unsigned max_non_turbo_ratio;
+ unsigned int mtc_period;
+ uint32_t tsc_ctc_ratio_n;
+ uint32_t tsc_ctc_ratio_d;
+};
+
+struct intel_pt_decoder;
+
+struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params);
+void intel_pt_decoder_free(struct intel_pt_decoder *decoder);
+
+const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder);
+
+unsigned char *intel_pt_find_overlap(unsigned char *buf_a, size_t len_a,
+ unsigned char *buf_b, size_t len_b,
+ bool have_tsc);
+
+int intel_pt__strerror(int code, char *buf, size_t buflen);
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
new file mode 100644
index 000000000000..9e4eb8fcd559
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
@@ -0,0 +1,246 @@
+/*
+ * intel_pt_insn_decoder.c: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <endian.h>
+#include <byteswap.h>
+
+#include "event.h"
+
+#include "insn.h"
+
+#include "inat.c"
+#include "insn.c"
+
+#include "intel-pt-insn-decoder.h"
+
+/* Based on branch_type() from perf_event_intel_lbr.c */
+static void intel_pt_insn_decoder(struct insn *insn,
+ struct intel_pt_insn *intel_pt_insn)
+{
+ enum intel_pt_insn_op op = INTEL_PT_OP_OTHER;
+ enum intel_pt_insn_branch branch = INTEL_PT_BR_NO_BRANCH;
+ int ext;
+
+ if (insn_is_avx(insn)) {
+ intel_pt_insn->op = INTEL_PT_OP_OTHER;
+ intel_pt_insn->branch = INTEL_PT_BR_NO_BRANCH;
+ intel_pt_insn->length = insn->length;
+ return;
+ }
+
+ switch (insn->opcode.bytes[0]) {
+ case 0xf:
+ switch (insn->opcode.bytes[1]) {
+ case 0x05: /* syscall */
+ case 0x34: /* sysenter */
+ op = INTEL_PT_OP_SYSCALL;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0x07: /* sysret */
+ case 0x35: /* sysexit */
+ op = INTEL_PT_OP_SYSRET;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0x80 ... 0x8f: /* jcc */
+ op = INTEL_PT_OP_JCC;
+ branch = INTEL_PT_BR_CONDITIONAL;
+ break;
+ default:
+ break;
+ }
+ break;
+ case 0x70 ... 0x7f: /* jcc */
+ op = INTEL_PT_OP_JCC;
+ branch = INTEL_PT_BR_CONDITIONAL;
+ break;
+ case 0xc2: /* near ret */
+ case 0xc3: /* near ret */
+ case 0xca: /* far ret */
+ case 0xcb: /* far ret */
+ op = INTEL_PT_OP_RET;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xcf: /* iret */
+ op = INTEL_PT_OP_IRET;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xcc ... 0xce: /* int */
+ op = INTEL_PT_OP_INT;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xe8: /* call near rel */
+ op = INTEL_PT_OP_CALL;
+ branch = INTEL_PT_BR_UNCONDITIONAL;
+ break;
+ case 0x9a: /* call far absolute */
+ op = INTEL_PT_OP_CALL;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xe0 ... 0xe2: /* loop */
+ op = INTEL_PT_OP_LOOP;
+ branch = INTEL_PT_BR_CONDITIONAL;
+ break;
+ case 0xe3: /* jcc */
+ op = INTEL_PT_OP_JCC;
+ branch = INTEL_PT_BR_CONDITIONAL;
+ break;
+ case 0xe9: /* jmp */
+ case 0xeb: /* jmp */
+ op = INTEL_PT_OP_JMP;
+ branch = INTEL_PT_BR_UNCONDITIONAL;
+ break;
+ case 0xea: /* far jmp */
+ op = INTEL_PT_OP_JMP;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xff: /* call near absolute, call far absolute ind */
+ ext = (insn->modrm.bytes[0] >> 3) & 0x7;
+ switch (ext) {
+ case 2: /* near ind call */
+ case 3: /* far ind call */
+ op = INTEL_PT_OP_CALL;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 4:
+ case 5:
+ op = INTEL_PT_OP_JMP;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ intel_pt_insn->op = op;
+ intel_pt_insn->branch = branch;
+ intel_pt_insn->length = insn->length;
+
+ if (branch == INTEL_PT_BR_CONDITIONAL ||
+ branch == INTEL_PT_BR_UNCONDITIONAL) {
+#if __BYTE_ORDER == __BIG_ENDIAN
+ switch (insn->immediate.nbytes) {
+ case 1:
+ intel_pt_insn->rel = insn->immediate.value;
+ break;
+ case 2:
+ intel_pt_insn->rel =
+ bswap_16((short)insn->immediate.value);
+ break;
+ case 4:
+ intel_pt_insn->rel = bswap_32(insn->immediate.value);
+ break;
+ }
+#else
+ intel_pt_insn->rel = insn->immediate.value;
+#endif
+ }
+}
+
+int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64,
+ struct intel_pt_insn *intel_pt_insn)
+{
+ struct insn insn;
+
+ insn_init(&insn, buf, len, x86_64);
+ insn_get_length(&insn);
+ if (!insn_complete(&insn) || insn.length > len)
+ return -1;
+ intel_pt_insn_decoder(&insn, intel_pt_insn);
+ if (insn.length < INTEL_PT_INSN_DBG_BUF_SZ)
+ memcpy(intel_pt_insn->buf, buf, insn.length);
+ else
+ memcpy(intel_pt_insn->buf, buf, INTEL_PT_INSN_DBG_BUF_SZ);
+ return 0;
+}
+
+const char *branch_name[] = {
+ [INTEL_PT_OP_OTHER] = "Other",
+ [INTEL_PT_OP_CALL] = "Call",
+ [INTEL_PT_OP_RET] = "Ret",
+ [INTEL_PT_OP_JCC] = "Jcc",
+ [INTEL_PT_OP_JMP] = "Jmp",
+ [INTEL_PT_OP_LOOP] = "Loop",
+ [INTEL_PT_OP_IRET] = "IRet",
+ [INTEL_PT_OP_INT] = "Int",
+ [INTEL_PT_OP_SYSCALL] = "Syscall",
+ [INTEL_PT_OP_SYSRET] = "Sysret",
+};
+
+const char *intel_pt_insn_name(enum intel_pt_insn_op op)
+{
+ return branch_name[op];
+}
+
+int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf,
+ size_t buf_len)
+{
+ switch (intel_pt_insn->branch) {
+ case INTEL_PT_BR_CONDITIONAL:
+ case INTEL_PT_BR_UNCONDITIONAL:
+ return snprintf(buf, buf_len, "%s %s%d",
+ intel_pt_insn_name(intel_pt_insn->op),
+ intel_pt_insn->rel > 0 ? "+" : "",
+ intel_pt_insn->rel);
+ case INTEL_PT_BR_NO_BRANCH:
+ case INTEL_PT_BR_INDIRECT:
+ return snprintf(buf, buf_len, "%s",
+ intel_pt_insn_name(intel_pt_insn->op));
+ default:
+ break;
+ }
+ return 0;
+}
+
+size_t intel_pt_insn_max_size(void)
+{
+ return MAX_INSN_SIZE;
+}
+
+int intel_pt_insn_type(enum intel_pt_insn_op op)
+{
+ switch (op) {
+ case INTEL_PT_OP_OTHER:
+ return 0;
+ case INTEL_PT_OP_CALL:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL;
+ case INTEL_PT_OP_RET:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN;
+ case INTEL_PT_OP_JCC:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL;
+ case INTEL_PT_OP_JMP:
+ return PERF_IP_FLAG_BRANCH;
+ case INTEL_PT_OP_LOOP:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL;
+ case INTEL_PT_OP_IRET:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN |
+ PERF_IP_FLAG_INTERRUPT;
+ case INTEL_PT_OP_INT:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_INTERRUPT;
+ case INTEL_PT_OP_SYSCALL:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_SYSCALLRET;
+ case INTEL_PT_OP_SYSRET:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN |
+ PERF_IP_FLAG_SYSCALLRET;
+ default:
+ return 0;
+ }
+}
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h
new file mode 100644
index 000000000000..b0adbf37323e
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h
@@ -0,0 +1,65 @@
+/*
+ * intel_pt_insn_decoder.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__INTEL_PT_INSN_DECODER_H__
+#define INCLUDE__INTEL_PT_INSN_DECODER_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define INTEL_PT_INSN_DESC_MAX 32
+#define INTEL_PT_INSN_DBG_BUF_SZ 16
+
+enum intel_pt_insn_op {
+ INTEL_PT_OP_OTHER,
+ INTEL_PT_OP_CALL,
+ INTEL_PT_OP_RET,
+ INTEL_PT_OP_JCC,
+ INTEL_PT_OP_JMP,
+ INTEL_PT_OP_LOOP,
+ INTEL_PT_OP_IRET,
+ INTEL_PT_OP_INT,
+ INTEL_PT_OP_SYSCALL,
+ INTEL_PT_OP_SYSRET,
+};
+
+enum intel_pt_insn_branch {
+ INTEL_PT_BR_NO_BRANCH,
+ INTEL_PT_BR_INDIRECT,
+ INTEL_PT_BR_CONDITIONAL,
+ INTEL_PT_BR_UNCONDITIONAL,
+};
+
+struct intel_pt_insn {
+ enum intel_pt_insn_op op;
+ enum intel_pt_insn_branch branch;
+ int length;
+ int32_t rel;
+ unsigned char buf[INTEL_PT_INSN_DBG_BUF_SZ];
+};
+
+int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64,
+ struct intel_pt_insn *intel_pt_insn);
+
+const char *intel_pt_insn_name(enum intel_pt_insn_op op);
+
+int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf,
+ size_t buf_len);
+
+size_t intel_pt_insn_max_size(void);
+
+int intel_pt_insn_type(enum intel_pt_insn_op op);
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-log.c b/tools/perf/util/intel-pt-decoder/intel-pt-log.c
new file mode 100644
index 000000000000..d09c7d9f9050
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-log.c
@@ -0,0 +1,155 @@
+/*
+ * intel_pt_log.c: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "intel-pt-log.h"
+#include "intel-pt-insn-decoder.h"
+
+#include "intel-pt-pkt-decoder.h"
+
+#define MAX_LOG_NAME 256
+
+static FILE *f;
+static char log_name[MAX_LOG_NAME];
+static bool enable_logging;
+
+void intel_pt_log_enable(void)
+{
+ enable_logging = true;
+}
+
+void intel_pt_log_disable(void)
+{
+ if (f)
+ fflush(f);
+ enable_logging = false;
+}
+
+void intel_pt_log_set_name(const char *name)
+{
+ strncpy(log_name, name, MAX_LOG_NAME - 5);
+ strcat(log_name, ".log");
+}
+
+static void intel_pt_print_data(const unsigned char *buf, int len, uint64_t pos,
+ int indent)
+{
+ int i;
+
+ for (i = 0; i < indent; i++)
+ fprintf(f, " ");
+
+ fprintf(f, " %08" PRIx64 ": ", pos);
+ for (i = 0; i < len; i++)
+ fprintf(f, " %02x", buf[i]);
+ for (; i < 16; i++)
+ fprintf(f, " ");
+ fprintf(f, " ");
+}
+
+static void intel_pt_print_no_data(uint64_t pos, int indent)
+{
+ int i;
+
+ for (i = 0; i < indent; i++)
+ fprintf(f, " ");
+
+ fprintf(f, " %08" PRIx64 ": ", pos);
+ for (i = 0; i < 16; i++)
+ fprintf(f, " ");
+ fprintf(f, " ");
+}
+
+static int intel_pt_log_open(void)
+{
+ if (!enable_logging)
+ return -1;
+
+ if (f)
+ return 0;
+
+ if (!log_name[0])
+ return -1;
+
+ f = fopen(log_name, "w+");
+ if (!f) {
+ enable_logging = false;
+ return -1;
+ }
+
+ return 0;
+}
+
+void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len,
+ uint64_t pos, const unsigned char *buf)
+{
+ char desc[INTEL_PT_PKT_DESC_MAX];
+
+ if (intel_pt_log_open())
+ return;
+
+ intel_pt_print_data(buf, pkt_len, pos, 0);
+ intel_pt_pkt_desc(packet, desc, INTEL_PT_PKT_DESC_MAX);
+ fprintf(f, "%s\n", desc);
+}
+
+void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip)
+{
+ char desc[INTEL_PT_INSN_DESC_MAX];
+ size_t len = intel_pt_insn->length;
+
+ if (intel_pt_log_open())
+ return;
+
+ if (len > INTEL_PT_INSN_DBG_BUF_SZ)
+ len = INTEL_PT_INSN_DBG_BUF_SZ;
+ intel_pt_print_data(intel_pt_insn->buf, len, ip, 8);
+ if (intel_pt_insn_desc(intel_pt_insn, desc, INTEL_PT_INSN_DESC_MAX) > 0)
+ fprintf(f, "%s\n", desc);
+ else
+ fprintf(f, "Bad instruction!\n");
+}
+
+void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn, uint64_t ip)
+{
+ char desc[INTEL_PT_INSN_DESC_MAX];
+
+ if (intel_pt_log_open())
+ return;
+
+ intel_pt_print_no_data(ip, 8);
+ if (intel_pt_insn_desc(intel_pt_insn, desc, INTEL_PT_INSN_DESC_MAX) > 0)
+ fprintf(f, "%s\n", desc);
+ else
+ fprintf(f, "Bad instruction!\n");
+}
+
+void intel_pt_log(const char *fmt, ...)
+{
+ va_list args;
+
+ if (intel_pt_log_open())
+ return;
+
+ va_start(args, fmt);
+ vfprintf(f, fmt, args);
+ va_end(args);
+}
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-log.h b/tools/perf/util/intel-pt-decoder/intel-pt-log.h
new file mode 100644
index 000000000000..db3942f83677
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-log.h
@@ -0,0 +1,52 @@
+/*
+ * intel_pt_log.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__INTEL_PT_LOG_H__
+#define INCLUDE__INTEL_PT_LOG_H__
+
+#include <stdint.h>
+#include <inttypes.h>
+
+struct intel_pt_pkt;
+
+void intel_pt_log_enable(void);
+void intel_pt_log_disable(void);
+void intel_pt_log_set_name(const char *name);
+
+void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len,
+ uint64_t pos, const unsigned char *buf);
+
+struct intel_pt_insn;
+
+void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip);
+void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn,
+ uint64_t ip);
+
+__attribute__((format(printf, 1, 2)))
+void intel_pt_log(const char *fmt, ...);
+
+#define x64_fmt "0x%" PRIx64
+
+static inline void intel_pt_log_at(const char *msg, uint64_t u)
+{
+ intel_pt_log("%s at " x64_fmt "\n", msg, u);
+}
+
+static inline void intel_pt_log_to(const char *msg, uint64_t u)
+{
+ intel_pt_log("%s to " x64_fmt "\n", msg, u);
+}
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
new file mode 100644
index 000000000000..b1257c816310
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
@@ -0,0 +1,518 @@
+/*
+ * intel_pt_pkt_decoder.c: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <endian.h>
+#include <byteswap.h>
+
+#include "intel-pt-pkt-decoder.h"
+
+#define BIT(n) (1 << (n))
+
+#define BIT63 ((uint64_t)1 << 63)
+
+#define NR_FLAG BIT63
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define le16_to_cpu bswap_16
+#define le32_to_cpu bswap_32
+#define le64_to_cpu bswap_64
+#define memcpy_le64(d, s, n) do { \
+ memcpy((d), (s), (n)); \
+ *(d) = le64_to_cpu(*(d)); \
+} while (0)
+#else
+#define le16_to_cpu
+#define le32_to_cpu
+#define le64_to_cpu
+#define memcpy_le64 memcpy
+#endif
+
+static const char * const packet_name[] = {
+ [INTEL_PT_BAD] = "Bad Packet!",
+ [INTEL_PT_PAD] = "PAD",
+ [INTEL_PT_TNT] = "TNT",
+ [INTEL_PT_TIP_PGD] = "TIP.PGD",
+ [INTEL_PT_TIP_PGE] = "TIP.PGE",
+ [INTEL_PT_TSC] = "TSC",
+ [INTEL_PT_TMA] = "TMA",
+ [INTEL_PT_MODE_EXEC] = "MODE.Exec",
+ [INTEL_PT_MODE_TSX] = "MODE.TSX",
+ [INTEL_PT_MTC] = "MTC",
+ [INTEL_PT_TIP] = "TIP",
+ [INTEL_PT_FUP] = "FUP",
+ [INTEL_PT_CYC] = "CYC",
+ [INTEL_PT_VMCS] = "VMCS",
+ [INTEL_PT_PSB] = "PSB",
+ [INTEL_PT_PSBEND] = "PSBEND",
+ [INTEL_PT_CBR] = "CBR",
+ [INTEL_PT_TRACESTOP] = "TraceSTOP",
+ [INTEL_PT_PIP] = "PIP",
+ [INTEL_PT_OVF] = "OVF",
+ [INTEL_PT_MNT] = "MNT",
+};
+
+const char *intel_pt_pkt_name(enum intel_pt_pkt_type type)
+{
+ return packet_name[type];
+}
+
+static int intel_pt_get_long_tnt(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ uint64_t payload;
+ int count;
+
+ if (len < 8)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ payload = le64_to_cpu(*(uint64_t *)buf);
+
+ for (count = 47; count; count--) {
+ if (payload & BIT63)
+ break;
+ payload <<= 1;
+ }
+
+ packet->type = INTEL_PT_TNT;
+ packet->count = count;
+ packet->payload = payload << 1;
+ return 8;
+}
+
+static int intel_pt_get_pip(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ uint64_t payload = 0;
+
+ if (len < 8)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ packet->type = INTEL_PT_PIP;
+ memcpy_le64(&payload, buf + 2, 6);
+ packet->payload = payload >> 1;
+ if (payload & 1)
+ packet->payload |= NR_FLAG;
+
+ return 8;
+}
+
+static int intel_pt_get_tracestop(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_TRACESTOP;
+ return 2;
+}
+
+static int intel_pt_get_cbr(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 4)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_CBR;
+ packet->payload = buf[2];
+ return 4;
+}
+
+static int intel_pt_get_vmcs(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ unsigned int count = (52 - 5) >> 3;
+
+ if (count < 1 || count > 7)
+ return INTEL_PT_BAD_PACKET;
+
+ if (len < count + 2)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ packet->type = INTEL_PT_VMCS;
+ packet->count = count;
+ memcpy_le64(&packet->payload, buf + 2, count);
+
+ return count + 2;
+}
+
+static int intel_pt_get_ovf(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_OVF;
+ return 2;
+}
+
+static int intel_pt_get_psb(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ int i;
+
+ if (len < 16)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ for (i = 2; i < 16; i += 2) {
+ if (buf[i] != 2 || buf[i + 1] != 0x82)
+ return INTEL_PT_BAD_PACKET;
+ }
+
+ packet->type = INTEL_PT_PSB;
+ return 16;
+}
+
+static int intel_pt_get_psbend(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_PSBEND;
+ return 2;
+}
+
+static int intel_pt_get_tma(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 7)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ packet->type = INTEL_PT_TMA;
+ packet->payload = buf[2] | (buf[3] << 8);
+ packet->count = buf[5] | ((buf[6] & BIT(0)) << 8);
+ return 7;
+}
+
+static int intel_pt_get_pad(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_PAD;
+ return 1;
+}
+
+static int intel_pt_get_mnt(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 11)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_MNT;
+ memcpy_le64(&packet->payload, buf + 3, 8);
+ return 11
+;
+}
+
+static int intel_pt_get_3byte(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 3)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ switch (buf[2]) {
+ case 0x88: /* MNT */
+ return intel_pt_get_mnt(buf, len, packet);
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+}
+
+static int intel_pt_get_ext(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 2)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ switch (buf[1]) {
+ case 0xa3: /* Long TNT */
+ return intel_pt_get_long_tnt(buf, len, packet);
+ case 0x43: /* PIP */
+ return intel_pt_get_pip(buf, len, packet);
+ case 0x83: /* TraceStop */
+ return intel_pt_get_tracestop(packet);
+ case 0x03: /* CBR */
+ return intel_pt_get_cbr(buf, len, packet);
+ case 0xc8: /* VMCS */
+ return intel_pt_get_vmcs(buf, len, packet);
+ case 0xf3: /* OVF */
+ return intel_pt_get_ovf(packet);
+ case 0x82: /* PSB */
+ return intel_pt_get_psb(buf, len, packet);
+ case 0x23: /* PSBEND */
+ return intel_pt_get_psbend(packet);
+ case 0x73: /* TMA */
+ return intel_pt_get_tma(buf, len, packet);
+ case 0xC3: /* 3-byte header */
+ return intel_pt_get_3byte(buf, len, packet);
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+}
+
+static int intel_pt_get_short_tnt(unsigned int byte,
+ struct intel_pt_pkt *packet)
+{
+ int count;
+
+ for (count = 6; count; count--) {
+ if (byte & BIT(7))
+ break;
+ byte <<= 1;
+ }
+
+ packet->type = INTEL_PT_TNT;
+ packet->count = count;
+ packet->payload = (uint64_t)byte << 57;
+
+ return 1;
+}
+
+static int intel_pt_get_cyc(unsigned int byte, const unsigned char *buf,
+ size_t len, struct intel_pt_pkt *packet)
+{
+ unsigned int offs = 1, shift;
+ uint64_t payload = byte >> 3;
+
+ byte >>= 2;
+ len -= 1;
+ for (shift = 5; byte & 1; shift += 7) {
+ if (offs > 9)
+ return INTEL_PT_BAD_PACKET;
+ if (len < offs)
+ return INTEL_PT_NEED_MORE_BYTES;
+ byte = buf[offs++];
+ payload |= (byte >> 1) << shift;
+ }
+
+ packet->type = INTEL_PT_CYC;
+ packet->payload = payload;
+ return offs;
+}
+
+static int intel_pt_get_ip(enum intel_pt_pkt_type type, unsigned int byte,
+ const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ switch (byte >> 5) {
+ case 0:
+ packet->count = 0;
+ break;
+ case 1:
+ if (len < 3)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->count = 2;
+ packet->payload = le16_to_cpu(*(uint16_t *)(buf + 1));
+ break;
+ case 2:
+ if (len < 5)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->count = 4;
+ packet->payload = le32_to_cpu(*(uint32_t *)(buf + 1));
+ break;
+ case 3:
+ case 6:
+ if (len < 7)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->count = 6;
+ memcpy_le64(&packet->payload, buf + 1, 6);
+ break;
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+
+ packet->type = type;
+
+ return packet->count + 1;
+}
+
+static int intel_pt_get_mode(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 2)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ switch (buf[1] >> 5) {
+ case 0:
+ packet->type = INTEL_PT_MODE_EXEC;
+ switch (buf[1] & 3) {
+ case 0:
+ packet->payload = 16;
+ break;
+ case 1:
+ packet->payload = 64;
+ break;
+ case 2:
+ packet->payload = 32;
+ break;
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+ break;
+ case 1:
+ packet->type = INTEL_PT_MODE_TSX;
+ if ((buf[1] & 3) == 3)
+ return INTEL_PT_BAD_PACKET;
+ packet->payload = buf[1] & 3;
+ break;
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+
+ return 2;
+}
+
+static int intel_pt_get_tsc(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 8)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_TSC;
+ memcpy_le64(&packet->payload, buf + 1, 7);
+ return 8;
+}
+
+static int intel_pt_get_mtc(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 2)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_MTC;
+ packet->payload = buf[1];
+ return 2;
+}
+
+static int intel_pt_do_get_packet(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ unsigned int byte;
+
+ memset(packet, 0, sizeof(struct intel_pt_pkt));
+
+ if (!len)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ byte = buf[0];
+ if (!(byte & BIT(0))) {
+ if (byte == 0)
+ return intel_pt_get_pad(packet);
+ if (byte == 2)
+ return intel_pt_get_ext(buf, len, packet);
+ return intel_pt_get_short_tnt(byte, packet);
+ }
+
+ if ((byte & 2))
+ return intel_pt_get_cyc(byte, buf, len, packet);
+
+ switch (byte & 0x1f) {
+ case 0x0D:
+ return intel_pt_get_ip(INTEL_PT_TIP, byte, buf, len, packet);
+ case 0x11:
+ return intel_pt_get_ip(INTEL_PT_TIP_PGE, byte, buf, len,
+ packet);
+ case 0x01:
+ return intel_pt_get_ip(INTEL_PT_TIP_PGD, byte, buf, len,
+ packet);
+ case 0x1D:
+ return intel_pt_get_ip(INTEL_PT_FUP, byte, buf, len, packet);
+ case 0x19:
+ switch (byte) {
+ case 0x99:
+ return intel_pt_get_mode(buf, len, packet);
+ case 0x19:
+ return intel_pt_get_tsc(buf, len, packet);
+ case 0x59:
+ return intel_pt_get_mtc(buf, len, packet);
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+}
+
+int intel_pt_get_packet(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ int ret;
+
+ ret = intel_pt_do_get_packet(buf, len, packet);
+ if (ret > 0) {
+ while (ret < 8 && len > (size_t)ret && !buf[ret])
+ ret += 1;
+ }
+ return ret;
+}
+
+int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf,
+ size_t buf_len)
+{
+ int ret, i, nr;
+ unsigned long long payload = packet->payload;
+ const char *name = intel_pt_pkt_name(packet->type);
+
+ switch (packet->type) {
+ case INTEL_PT_BAD:
+ case INTEL_PT_PAD:
+ case INTEL_PT_PSB:
+ case INTEL_PT_PSBEND:
+ case INTEL_PT_TRACESTOP:
+ case INTEL_PT_OVF:
+ return snprintf(buf, buf_len, "%s", name);
+ case INTEL_PT_TNT: {
+ size_t blen = buf_len;
+
+ ret = snprintf(buf, blen, "%s ", name);
+ if (ret < 0)
+ return ret;
+ buf += ret;
+ blen -= ret;
+ for (i = 0; i < packet->count; i++) {
+ if (payload & BIT63)
+ ret = snprintf(buf, blen, "T");
+ else
+ ret = snprintf(buf, blen, "N");
+ if (ret < 0)
+ return ret;
+ buf += ret;
+ blen -= ret;
+ payload <<= 1;
+ }
+ ret = snprintf(buf, blen, " (%d)", packet->count);
+ if (ret < 0)
+ return ret;
+ blen -= ret;
+ return buf_len - blen;
+ }
+ case INTEL_PT_TIP_PGD:
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ case INTEL_PT_FUP:
+ if (!(packet->count))
+ return snprintf(buf, buf_len, "%s no ip", name);
+ case INTEL_PT_CYC:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MTC:
+ case INTEL_PT_MNT:
+ case INTEL_PT_CBR:
+ case INTEL_PT_TSC:
+ return snprintf(buf, buf_len, "%s 0x%llx", name, payload);
+ case INTEL_PT_TMA:
+ return snprintf(buf, buf_len, "%s CTC 0x%x FC 0x%x", name,
+ (unsigned)payload, packet->count);
+ case INTEL_PT_MODE_EXEC:
+ return snprintf(buf, buf_len, "%s %lld", name, payload);
+ case INTEL_PT_MODE_TSX:
+ return snprintf(buf, buf_len, "%s TXAbort:%u InTX:%u",
+ name, (unsigned)(payload >> 1) & 1,
+ (unsigned)payload & 1);
+ case INTEL_PT_PIP:
+ nr = packet->payload & NR_FLAG ? 1 : 0;
+ payload &= ~NR_FLAG;
+ ret = snprintf(buf, buf_len, "%s 0x%llx (NR=%d)",
+ name, payload, nr);
+ return ret;
+ default:
+ break;
+ }
+ return snprintf(buf, buf_len, "%s 0x%llx (%d)",
+ name, payload, packet->count);
+}
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h
new file mode 100644
index 000000000000..781bb79883bd
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h
@@ -0,0 +1,70 @@
+/*
+ * intel_pt_pkt_decoder.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__INTEL_PT_PKT_DECODER_H__
+#define INCLUDE__INTEL_PT_PKT_DECODER_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define INTEL_PT_PKT_DESC_MAX 256
+
+#define INTEL_PT_NEED_MORE_BYTES -1
+#define INTEL_PT_BAD_PACKET -2
+
+#define INTEL_PT_PSB_STR "\002\202\002\202\002\202\002\202" \
+ "\002\202\002\202\002\202\002\202"
+#define INTEL_PT_PSB_LEN 16
+
+#define INTEL_PT_PKT_MAX_SZ 16
+
+enum intel_pt_pkt_type {
+ INTEL_PT_BAD,
+ INTEL_PT_PAD,
+ INTEL_PT_TNT,
+ INTEL_PT_TIP_PGD,
+ INTEL_PT_TIP_PGE,
+ INTEL_PT_TSC,
+ INTEL_PT_TMA,
+ INTEL_PT_MODE_EXEC,
+ INTEL_PT_MODE_TSX,
+ INTEL_PT_MTC,
+ INTEL_PT_TIP,
+ INTEL_PT_FUP,
+ INTEL_PT_CYC,
+ INTEL_PT_VMCS,
+ INTEL_PT_PSB,
+ INTEL_PT_PSBEND,
+ INTEL_PT_CBR,
+ INTEL_PT_TRACESTOP,
+ INTEL_PT_PIP,
+ INTEL_PT_OVF,
+ INTEL_PT_MNT,
+};
+
+struct intel_pt_pkt {
+ enum intel_pt_pkt_type type;
+ int count;
+ uint64_t payload;
+};
+
+const char *intel_pt_pkt_name(enum intel_pt_pkt_type);
+
+int intel_pt_get_packet(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet);
+
+int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf, size_t len);
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
new file mode 100644
index 000000000000..816488c0b97e
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
@@ -0,0 +1,970 @@
+# x86 Opcode Maps
+#
+# This is (mostly) based on following documentations.
+# - Intel(R) 64 and IA-32 Architectures Software Developer's Manual Vol.2C
+# (#326018-047US, June 2013)
+#
+#<Opcode maps>
+# Table: table-name
+# Referrer: escaped-name
+# AVXcode: avx-code
+# opcode: mnemonic|GrpXXX [operand1[,operand2...]] [(extra1)[,(extra2)...] [| 2nd-mnemonic ...]
+# (or)
+# opcode: escape # escaped-name
+# EndTable
+#
+#<group maps>
+# GrpTable: GrpXXX
+# reg: mnemonic [operand1[,operand2...]] [(extra1)[,(extra2)...] [| 2nd-mnemonic ...]
+# EndTable
+#
+# AVX Superscripts
+# (v): this opcode requires VEX prefix.
+# (v1): this opcode only supports 128bit VEX.
+#
+# Last Prefix Superscripts
+# - (66): the last prefix is 0x66
+# - (F3): the last prefix is 0xF3
+# - (F2): the last prefix is 0xF2
+# - (!F3) : the last prefix is not 0xF3 (including non-last prefix case)
+# - (66&F2): Both 0x66 and 0xF2 prefixes are specified.
+
+Table: one byte opcode
+Referrer:
+AVXcode:
+# 0x00 - 0x0f
+00: ADD Eb,Gb
+01: ADD Ev,Gv
+02: ADD Gb,Eb
+03: ADD Gv,Ev
+04: ADD AL,Ib
+05: ADD rAX,Iz
+06: PUSH ES (i64)
+07: POP ES (i64)
+08: OR Eb,Gb
+09: OR Ev,Gv
+0a: OR Gb,Eb
+0b: OR Gv,Ev
+0c: OR AL,Ib
+0d: OR rAX,Iz
+0e: PUSH CS (i64)
+0f: escape # 2-byte escape
+# 0x10 - 0x1f
+10: ADC Eb,Gb
+11: ADC Ev,Gv
+12: ADC Gb,Eb
+13: ADC Gv,Ev
+14: ADC AL,Ib
+15: ADC rAX,Iz
+16: PUSH SS (i64)
+17: POP SS (i64)
+18: SBB Eb,Gb
+19: SBB Ev,Gv
+1a: SBB Gb,Eb
+1b: SBB Gv,Ev
+1c: SBB AL,Ib
+1d: SBB rAX,Iz
+1e: PUSH DS (i64)
+1f: POP DS (i64)
+# 0x20 - 0x2f
+20: AND Eb,Gb
+21: AND Ev,Gv
+22: AND Gb,Eb
+23: AND Gv,Ev
+24: AND AL,Ib
+25: AND rAx,Iz
+26: SEG=ES (Prefix)
+27: DAA (i64)
+28: SUB Eb,Gb
+29: SUB Ev,Gv
+2a: SUB Gb,Eb
+2b: SUB Gv,Ev
+2c: SUB AL,Ib
+2d: SUB rAX,Iz
+2e: SEG=CS (Prefix)
+2f: DAS (i64)
+# 0x30 - 0x3f
+30: XOR Eb,Gb
+31: XOR Ev,Gv
+32: XOR Gb,Eb
+33: XOR Gv,Ev
+34: XOR AL,Ib
+35: XOR rAX,Iz
+36: SEG=SS (Prefix)
+37: AAA (i64)
+38: CMP Eb,Gb
+39: CMP Ev,Gv
+3a: CMP Gb,Eb
+3b: CMP Gv,Ev
+3c: CMP AL,Ib
+3d: CMP rAX,Iz
+3e: SEG=DS (Prefix)
+3f: AAS (i64)
+# 0x40 - 0x4f
+40: INC eAX (i64) | REX (o64)
+41: INC eCX (i64) | REX.B (o64)
+42: INC eDX (i64) | REX.X (o64)
+43: INC eBX (i64) | REX.XB (o64)
+44: INC eSP (i64) | REX.R (o64)
+45: INC eBP (i64) | REX.RB (o64)
+46: INC eSI (i64) | REX.RX (o64)
+47: INC eDI (i64) | REX.RXB (o64)
+48: DEC eAX (i64) | REX.W (o64)
+49: DEC eCX (i64) | REX.WB (o64)
+4a: DEC eDX (i64) | REX.WX (o64)
+4b: DEC eBX (i64) | REX.WXB (o64)
+4c: DEC eSP (i64) | REX.WR (o64)
+4d: DEC eBP (i64) | REX.WRB (o64)
+4e: DEC eSI (i64) | REX.WRX (o64)
+4f: DEC eDI (i64) | REX.WRXB (o64)
+# 0x50 - 0x5f
+50: PUSH rAX/r8 (d64)
+51: PUSH rCX/r9 (d64)
+52: PUSH rDX/r10 (d64)
+53: PUSH rBX/r11 (d64)
+54: PUSH rSP/r12 (d64)
+55: PUSH rBP/r13 (d64)
+56: PUSH rSI/r14 (d64)
+57: PUSH rDI/r15 (d64)
+58: POP rAX/r8 (d64)
+59: POP rCX/r9 (d64)
+5a: POP rDX/r10 (d64)
+5b: POP rBX/r11 (d64)
+5c: POP rSP/r12 (d64)
+5d: POP rBP/r13 (d64)
+5e: POP rSI/r14 (d64)
+5f: POP rDI/r15 (d64)
+# 0x60 - 0x6f
+60: PUSHA/PUSHAD (i64)
+61: POPA/POPAD (i64)
+62: BOUND Gv,Ma (i64)
+63: ARPL Ew,Gw (i64) | MOVSXD Gv,Ev (o64)
+64: SEG=FS (Prefix)
+65: SEG=GS (Prefix)
+66: Operand-Size (Prefix)
+67: Address-Size (Prefix)
+68: PUSH Iz (d64)
+69: IMUL Gv,Ev,Iz
+6a: PUSH Ib (d64)
+6b: IMUL Gv,Ev,Ib
+6c: INS/INSB Yb,DX
+6d: INS/INSW/INSD Yz,DX
+6e: OUTS/OUTSB DX,Xb
+6f: OUTS/OUTSW/OUTSD DX,Xz
+# 0x70 - 0x7f
+70: JO Jb
+71: JNO Jb
+72: JB/JNAE/JC Jb
+73: JNB/JAE/JNC Jb
+74: JZ/JE Jb
+75: JNZ/JNE Jb
+76: JBE/JNA Jb
+77: JNBE/JA Jb
+78: JS Jb
+79: JNS Jb
+7a: JP/JPE Jb
+7b: JNP/JPO Jb
+7c: JL/JNGE Jb
+7d: JNL/JGE Jb
+7e: JLE/JNG Jb
+7f: JNLE/JG Jb
+# 0x80 - 0x8f
+80: Grp1 Eb,Ib (1A)
+81: Grp1 Ev,Iz (1A)
+82: Grp1 Eb,Ib (1A),(i64)
+83: Grp1 Ev,Ib (1A)
+84: TEST Eb,Gb
+85: TEST Ev,Gv
+86: XCHG Eb,Gb
+87: XCHG Ev,Gv
+88: MOV Eb,Gb
+89: MOV Ev,Gv
+8a: MOV Gb,Eb
+8b: MOV Gv,Ev
+8c: MOV Ev,Sw
+8d: LEA Gv,M
+8e: MOV Sw,Ew
+8f: Grp1A (1A) | POP Ev (d64)
+# 0x90 - 0x9f
+90: NOP | PAUSE (F3) | XCHG r8,rAX
+91: XCHG rCX/r9,rAX
+92: XCHG rDX/r10,rAX
+93: XCHG rBX/r11,rAX
+94: XCHG rSP/r12,rAX
+95: XCHG rBP/r13,rAX
+96: XCHG rSI/r14,rAX
+97: XCHG rDI/r15,rAX
+98: CBW/CWDE/CDQE
+99: CWD/CDQ/CQO
+9a: CALLF Ap (i64)
+9b: FWAIT/WAIT
+9c: PUSHF/D/Q Fv (d64)
+9d: POPF/D/Q Fv (d64)
+9e: SAHF
+9f: LAHF
+# 0xa0 - 0xaf
+a0: MOV AL,Ob
+a1: MOV rAX,Ov
+a2: MOV Ob,AL
+a3: MOV Ov,rAX
+a4: MOVS/B Yb,Xb
+a5: MOVS/W/D/Q Yv,Xv
+a6: CMPS/B Xb,Yb
+a7: CMPS/W/D Xv,Yv
+a8: TEST AL,Ib
+a9: TEST rAX,Iz
+aa: STOS/B Yb,AL
+ab: STOS/W/D/Q Yv,rAX
+ac: LODS/B AL,Xb
+ad: LODS/W/D/Q rAX,Xv
+ae: SCAS/B AL,Yb
+# Note: The May 2011 Intel manual shows Xv for the second parameter of the
+# next instruction but Yv is correct
+af: SCAS/W/D/Q rAX,Yv
+# 0xb0 - 0xbf
+b0: MOV AL/R8L,Ib
+b1: MOV CL/R9L,Ib
+b2: MOV DL/R10L,Ib
+b3: MOV BL/R11L,Ib
+b4: MOV AH/R12L,Ib
+b5: MOV CH/R13L,Ib
+b6: MOV DH/R14L,Ib
+b7: MOV BH/R15L,Ib
+b8: MOV rAX/r8,Iv
+b9: MOV rCX/r9,Iv
+ba: MOV rDX/r10,Iv
+bb: MOV rBX/r11,Iv
+bc: MOV rSP/r12,Iv
+bd: MOV rBP/r13,Iv
+be: MOV rSI/r14,Iv
+bf: MOV rDI/r15,Iv
+# 0xc0 - 0xcf
+c0: Grp2 Eb,Ib (1A)
+c1: Grp2 Ev,Ib (1A)
+c2: RETN Iw (f64)
+c3: RETN
+c4: LES Gz,Mp (i64) | VEX+2byte (Prefix)
+c5: LDS Gz,Mp (i64) | VEX+1byte (Prefix)
+c6: Grp11A Eb,Ib (1A)
+c7: Grp11B Ev,Iz (1A)
+c8: ENTER Iw,Ib
+c9: LEAVE (d64)
+ca: RETF Iw
+cb: RETF
+cc: INT3
+cd: INT Ib
+ce: INTO (i64)
+cf: IRET/D/Q
+# 0xd0 - 0xdf
+d0: Grp2 Eb,1 (1A)
+d1: Grp2 Ev,1 (1A)
+d2: Grp2 Eb,CL (1A)
+d3: Grp2 Ev,CL (1A)
+d4: AAM Ib (i64)
+d5: AAD Ib (i64)
+d6:
+d7: XLAT/XLATB
+d8: ESC
+d9: ESC
+da: ESC
+db: ESC
+dc: ESC
+dd: ESC
+de: ESC
+df: ESC
+# 0xe0 - 0xef
+# Note: "forced64" is Intel CPU behavior: they ignore 0x66 prefix
+# in 64-bit mode. AMD CPUs accept 0x66 prefix, it causes RIP truncation
+# to 16 bits. In 32-bit mode, 0x66 is accepted by both Intel and AMD.
+e0: LOOPNE/LOOPNZ Jb (f64)
+e1: LOOPE/LOOPZ Jb (f64)
+e2: LOOP Jb (f64)
+e3: JrCXZ Jb (f64)
+e4: IN AL,Ib
+e5: IN eAX,Ib
+e6: OUT Ib,AL
+e7: OUT Ib,eAX
+# With 0x66 prefix in 64-bit mode, for AMD CPUs immediate offset
+# in "near" jumps and calls is 16-bit. For CALL,
+# push of return address is 16-bit wide, RSP is decremented by 2
+# but is not truncated to 16 bits, unlike RIP.
+e8: CALL Jz (f64)
+e9: JMP-near Jz (f64)
+ea: JMP-far Ap (i64)
+eb: JMP-short Jb (f64)
+ec: IN AL,DX
+ed: IN eAX,DX
+ee: OUT DX,AL
+ef: OUT DX,eAX
+# 0xf0 - 0xff
+f0: LOCK (Prefix)
+f1:
+f2: REPNE (Prefix) | XACQUIRE (Prefix)
+f3: REP/REPE (Prefix) | XRELEASE (Prefix)
+f4: HLT
+f5: CMC
+f6: Grp3_1 Eb (1A)
+f7: Grp3_2 Ev (1A)
+f8: CLC
+f9: STC
+fa: CLI
+fb: STI
+fc: CLD
+fd: STD
+fe: Grp4 (1A)
+ff: Grp5 (1A)
+EndTable
+
+Table: 2-byte opcode (0x0f)
+Referrer: 2-byte escape
+AVXcode: 1
+# 0x0f 0x00-0x0f
+00: Grp6 (1A)
+01: Grp7 (1A)
+02: LAR Gv,Ew
+03: LSL Gv,Ew
+04:
+05: SYSCALL (o64)
+06: CLTS
+07: SYSRET (o64)
+08: INVD
+09: WBINVD
+0a:
+0b: UD2 (1B)
+0c:
+# AMD's prefetch group. Intel supports prefetchw(/1) only.
+0d: GrpP
+0e: FEMMS
+# 3DNow! uses the last imm byte as opcode extension.
+0f: 3DNow! Pq,Qq,Ib
+# 0x0f 0x10-0x1f
+# NOTE: According to Intel SDM opcode map, vmovups and vmovupd has no operands
+# but it actually has operands. And also, vmovss and vmovsd only accept 128bit.
+# MOVSS/MOVSD has too many forms(3) on SDM. This map just shows a typical form.
+# Many AVX instructions lack v1 superscript, according to Intel AVX-Prgramming
+# Reference A.1
+10: vmovups Vps,Wps | vmovupd Vpd,Wpd (66) | vmovss Vx,Hx,Wss (F3),(v1) | vmovsd Vx,Hx,Wsd (F2),(v1)
+11: vmovups Wps,Vps | vmovupd Wpd,Vpd (66) | vmovss Wss,Hx,Vss (F3),(v1) | vmovsd Wsd,Hx,Vsd (F2),(v1)
+12: vmovlps Vq,Hq,Mq (v1) | vmovhlps Vq,Hq,Uq (v1) | vmovlpd Vq,Hq,Mq (66),(v1) | vmovsldup Vx,Wx (F3) | vmovddup Vx,Wx (F2)
+13: vmovlps Mq,Vq (v1) | vmovlpd Mq,Vq (66),(v1)
+14: vunpcklps Vx,Hx,Wx | vunpcklpd Vx,Hx,Wx (66)
+15: vunpckhps Vx,Hx,Wx | vunpckhpd Vx,Hx,Wx (66)
+16: vmovhps Vdq,Hq,Mq (v1) | vmovlhps Vdq,Hq,Uq (v1) | vmovhpd Vdq,Hq,Mq (66),(v1) | vmovshdup Vx,Wx (F3)
+17: vmovhps Mq,Vq (v1) | vmovhpd Mq,Vq (66),(v1)
+18: Grp16 (1A)
+19:
+1a: BNDCL Ev,Gv | BNDCU Ev,Gv | BNDMOV Gv,Ev | BNDLDX Gv,Ev,Gv
+1b: BNDCN Ev,Gv | BNDMOV Ev,Gv | BNDMK Gv,Ev | BNDSTX Ev,GV,Gv
+1c:
+1d:
+1e:
+1f: NOP Ev
+# 0x0f 0x20-0x2f
+20: MOV Rd,Cd
+21: MOV Rd,Dd
+22: MOV Cd,Rd
+23: MOV Dd,Rd
+24:
+25:
+26:
+27:
+28: vmovaps Vps,Wps | vmovapd Vpd,Wpd (66)
+29: vmovaps Wps,Vps | vmovapd Wpd,Vpd (66)
+2a: cvtpi2ps Vps,Qpi | cvtpi2pd Vpd,Qpi (66) | vcvtsi2ss Vss,Hss,Ey (F3),(v1) | vcvtsi2sd Vsd,Hsd,Ey (F2),(v1)
+2b: vmovntps Mps,Vps | vmovntpd Mpd,Vpd (66)
+2c: cvttps2pi Ppi,Wps | cvttpd2pi Ppi,Wpd (66) | vcvttss2si Gy,Wss (F3),(v1) | vcvttsd2si Gy,Wsd (F2),(v1)
+2d: cvtps2pi Ppi,Wps | cvtpd2pi Qpi,Wpd (66) | vcvtss2si Gy,Wss (F3),(v1) | vcvtsd2si Gy,Wsd (F2),(v1)
+2e: vucomiss Vss,Wss (v1) | vucomisd Vsd,Wsd (66),(v1)
+2f: vcomiss Vss,Wss (v1) | vcomisd Vsd,Wsd (66),(v1)
+# 0x0f 0x30-0x3f
+30: WRMSR
+31: RDTSC
+32: RDMSR
+33: RDPMC
+34: SYSENTER
+35: SYSEXIT
+36:
+37: GETSEC
+38: escape # 3-byte escape 1
+39:
+3a: escape # 3-byte escape 2
+3b:
+3c:
+3d:
+3e:
+3f:
+# 0x0f 0x40-0x4f
+40: CMOVO Gv,Ev
+41: CMOVNO Gv,Ev
+42: CMOVB/C/NAE Gv,Ev
+43: CMOVAE/NB/NC Gv,Ev
+44: CMOVE/Z Gv,Ev
+45: CMOVNE/NZ Gv,Ev
+46: CMOVBE/NA Gv,Ev
+47: CMOVA/NBE Gv,Ev
+48: CMOVS Gv,Ev
+49: CMOVNS Gv,Ev
+4a: CMOVP/PE Gv,Ev
+4b: CMOVNP/PO Gv,Ev
+4c: CMOVL/NGE Gv,Ev
+4d: CMOVNL/GE Gv,Ev
+4e: CMOVLE/NG Gv,Ev
+4f: CMOVNLE/G Gv,Ev
+# 0x0f 0x50-0x5f
+50: vmovmskps Gy,Ups | vmovmskpd Gy,Upd (66)
+51: vsqrtps Vps,Wps | vsqrtpd Vpd,Wpd (66) | vsqrtss Vss,Hss,Wss (F3),(v1) | vsqrtsd Vsd,Hsd,Wsd (F2),(v1)
+52: vrsqrtps Vps,Wps | vrsqrtss Vss,Hss,Wss (F3),(v1)
+53: vrcpps Vps,Wps | vrcpss Vss,Hss,Wss (F3),(v1)
+54: vandps Vps,Hps,Wps | vandpd Vpd,Hpd,Wpd (66)
+55: vandnps Vps,Hps,Wps | vandnpd Vpd,Hpd,Wpd (66)
+56: vorps Vps,Hps,Wps | vorpd Vpd,Hpd,Wpd (66)
+57: vxorps Vps,Hps,Wps | vxorpd Vpd,Hpd,Wpd (66)
+58: vaddps Vps,Hps,Wps | vaddpd Vpd,Hpd,Wpd (66) | vaddss Vss,Hss,Wss (F3),(v1) | vaddsd Vsd,Hsd,Wsd (F2),(v1)
+59: vmulps Vps,Hps,Wps | vmulpd Vpd,Hpd,Wpd (66) | vmulss Vss,Hss,Wss (F3),(v1) | vmulsd Vsd,Hsd,Wsd (F2),(v1)
+5a: vcvtps2pd Vpd,Wps | vcvtpd2ps Vps,Wpd (66) | vcvtss2sd Vsd,Hx,Wss (F3),(v1) | vcvtsd2ss Vss,Hx,Wsd (F2),(v1)
+5b: vcvtdq2ps Vps,Wdq | vcvtps2dq Vdq,Wps (66) | vcvttps2dq Vdq,Wps (F3)
+5c: vsubps Vps,Hps,Wps | vsubpd Vpd,Hpd,Wpd (66) | vsubss Vss,Hss,Wss (F3),(v1) | vsubsd Vsd,Hsd,Wsd (F2),(v1)
+5d: vminps Vps,Hps,Wps | vminpd Vpd,Hpd,Wpd (66) | vminss Vss,Hss,Wss (F3),(v1) | vminsd Vsd,Hsd,Wsd (F2),(v1)
+5e: vdivps Vps,Hps,Wps | vdivpd Vpd,Hpd,Wpd (66) | vdivss Vss,Hss,Wss (F3),(v1) | vdivsd Vsd,Hsd,Wsd (F2),(v1)
+5f: vmaxps Vps,Hps,Wps | vmaxpd Vpd,Hpd,Wpd (66) | vmaxss Vss,Hss,Wss (F3),(v1) | vmaxsd Vsd,Hsd,Wsd (F2),(v1)
+# 0x0f 0x60-0x6f
+60: punpcklbw Pq,Qd | vpunpcklbw Vx,Hx,Wx (66),(v1)
+61: punpcklwd Pq,Qd | vpunpcklwd Vx,Hx,Wx (66),(v1)
+62: punpckldq Pq,Qd | vpunpckldq Vx,Hx,Wx (66),(v1)
+63: packsswb Pq,Qq | vpacksswb Vx,Hx,Wx (66),(v1)
+64: pcmpgtb Pq,Qq | vpcmpgtb Vx,Hx,Wx (66),(v1)
+65: pcmpgtw Pq,Qq | vpcmpgtw Vx,Hx,Wx (66),(v1)
+66: pcmpgtd Pq,Qq | vpcmpgtd Vx,Hx,Wx (66),(v1)
+67: packuswb Pq,Qq | vpackuswb Vx,Hx,Wx (66),(v1)
+68: punpckhbw Pq,Qd | vpunpckhbw Vx,Hx,Wx (66),(v1)
+69: punpckhwd Pq,Qd | vpunpckhwd Vx,Hx,Wx (66),(v1)
+6a: punpckhdq Pq,Qd | vpunpckhdq Vx,Hx,Wx (66),(v1)
+6b: packssdw Pq,Qd | vpackssdw Vx,Hx,Wx (66),(v1)
+6c: vpunpcklqdq Vx,Hx,Wx (66),(v1)
+6d: vpunpckhqdq Vx,Hx,Wx (66),(v1)
+6e: movd/q Pd,Ey | vmovd/q Vy,Ey (66),(v1)
+6f: movq Pq,Qq | vmovdqa Vx,Wx (66) | vmovdqu Vx,Wx (F3)
+# 0x0f 0x70-0x7f
+70: pshufw Pq,Qq,Ib | vpshufd Vx,Wx,Ib (66),(v1) | vpshufhw Vx,Wx,Ib (F3),(v1) | vpshuflw Vx,Wx,Ib (F2),(v1)
+71: Grp12 (1A)
+72: Grp13 (1A)
+73: Grp14 (1A)
+74: pcmpeqb Pq,Qq | vpcmpeqb Vx,Hx,Wx (66),(v1)
+75: pcmpeqw Pq,Qq | vpcmpeqw Vx,Hx,Wx (66),(v1)
+76: pcmpeqd Pq,Qq | vpcmpeqd Vx,Hx,Wx (66),(v1)
+# Note: Remove (v), because vzeroall and vzeroupper becomes emms without VEX.
+77: emms | vzeroupper | vzeroall
+78: VMREAD Ey,Gy
+79: VMWRITE Gy,Ey
+7a:
+7b:
+7c: vhaddpd Vpd,Hpd,Wpd (66) | vhaddps Vps,Hps,Wps (F2)
+7d: vhsubpd Vpd,Hpd,Wpd (66) | vhsubps Vps,Hps,Wps (F2)
+7e: movd/q Ey,Pd | vmovd/q Ey,Vy (66),(v1) | vmovq Vq,Wq (F3),(v1)
+7f: movq Qq,Pq | vmovdqa Wx,Vx (66) | vmovdqu Wx,Vx (F3)
+# 0x0f 0x80-0x8f
+# Note: "forced64" is Intel CPU behavior (see comment about CALL insn).
+80: JO Jz (f64)
+81: JNO Jz (f64)
+82: JB/JC/JNAE Jz (f64)
+83: JAE/JNB/JNC Jz (f64)
+84: JE/JZ Jz (f64)
+85: JNE/JNZ Jz (f64)
+86: JBE/JNA Jz (f64)
+87: JA/JNBE Jz (f64)
+88: JS Jz (f64)
+89: JNS Jz (f64)
+8a: JP/JPE Jz (f64)
+8b: JNP/JPO Jz (f64)
+8c: JL/JNGE Jz (f64)
+8d: JNL/JGE Jz (f64)
+8e: JLE/JNG Jz (f64)
+8f: JNLE/JG Jz (f64)
+# 0x0f 0x90-0x9f
+90: SETO Eb
+91: SETNO Eb
+92: SETB/C/NAE Eb
+93: SETAE/NB/NC Eb
+94: SETE/Z Eb
+95: SETNE/NZ Eb
+96: SETBE/NA Eb
+97: SETA/NBE Eb
+98: SETS Eb
+99: SETNS Eb
+9a: SETP/PE Eb
+9b: SETNP/PO Eb
+9c: SETL/NGE Eb
+9d: SETNL/GE Eb
+9e: SETLE/NG Eb
+9f: SETNLE/G Eb
+# 0x0f 0xa0-0xaf
+a0: PUSH FS (d64)
+a1: POP FS (d64)
+a2: CPUID
+a3: BT Ev,Gv
+a4: SHLD Ev,Gv,Ib
+a5: SHLD Ev,Gv,CL
+a6: GrpPDLK
+a7: GrpRNG
+a8: PUSH GS (d64)
+a9: POP GS (d64)
+aa: RSM
+ab: BTS Ev,Gv
+ac: SHRD Ev,Gv,Ib
+ad: SHRD Ev,Gv,CL
+ae: Grp15 (1A),(1C)
+af: IMUL Gv,Ev
+# 0x0f 0xb0-0xbf
+b0: CMPXCHG Eb,Gb
+b1: CMPXCHG Ev,Gv
+b2: LSS Gv,Mp
+b3: BTR Ev,Gv
+b4: LFS Gv,Mp
+b5: LGS Gv,Mp
+b6: MOVZX Gv,Eb
+b7: MOVZX Gv,Ew
+b8: JMPE (!F3) | POPCNT Gv,Ev (F3)
+b9: Grp10 (1A)
+ba: Grp8 Ev,Ib (1A)
+bb: BTC Ev,Gv
+bc: BSF Gv,Ev (!F3) | TZCNT Gv,Ev (F3)
+bd: BSR Gv,Ev (!F3) | LZCNT Gv,Ev (F3)
+be: MOVSX Gv,Eb
+bf: MOVSX Gv,Ew
+# 0x0f 0xc0-0xcf
+c0: XADD Eb,Gb
+c1: XADD Ev,Gv
+c2: vcmpps Vps,Hps,Wps,Ib | vcmppd Vpd,Hpd,Wpd,Ib (66) | vcmpss Vss,Hss,Wss,Ib (F3),(v1) | vcmpsd Vsd,Hsd,Wsd,Ib (F2),(v1)
+c3: movnti My,Gy
+c4: pinsrw Pq,Ry/Mw,Ib | vpinsrw Vdq,Hdq,Ry/Mw,Ib (66),(v1)
+c5: pextrw Gd,Nq,Ib | vpextrw Gd,Udq,Ib (66),(v1)
+c6: vshufps Vps,Hps,Wps,Ib | vshufpd Vpd,Hpd,Wpd,Ib (66)
+c7: Grp9 (1A)
+c8: BSWAP RAX/EAX/R8/R8D
+c9: BSWAP RCX/ECX/R9/R9D
+ca: BSWAP RDX/EDX/R10/R10D
+cb: BSWAP RBX/EBX/R11/R11D
+cc: BSWAP RSP/ESP/R12/R12D
+cd: BSWAP RBP/EBP/R13/R13D
+ce: BSWAP RSI/ESI/R14/R14D
+cf: BSWAP RDI/EDI/R15/R15D
+# 0x0f 0xd0-0xdf
+d0: vaddsubpd Vpd,Hpd,Wpd (66) | vaddsubps Vps,Hps,Wps (F2)
+d1: psrlw Pq,Qq | vpsrlw Vx,Hx,Wx (66),(v1)
+d2: psrld Pq,Qq | vpsrld Vx,Hx,Wx (66),(v1)
+d3: psrlq Pq,Qq | vpsrlq Vx,Hx,Wx (66),(v1)
+d4: paddq Pq,Qq | vpaddq Vx,Hx,Wx (66),(v1)
+d5: pmullw Pq,Qq | vpmullw Vx,Hx,Wx (66),(v1)
+d6: vmovq Wq,Vq (66),(v1) | movq2dq Vdq,Nq (F3) | movdq2q Pq,Uq (F2)
+d7: pmovmskb Gd,Nq | vpmovmskb Gd,Ux (66),(v1)
+d8: psubusb Pq,Qq | vpsubusb Vx,Hx,Wx (66),(v1)
+d9: psubusw Pq,Qq | vpsubusw Vx,Hx,Wx (66),(v1)
+da: pminub Pq,Qq | vpminub Vx,Hx,Wx (66),(v1)
+db: pand Pq,Qq | vpand Vx,Hx,Wx (66),(v1)
+dc: paddusb Pq,Qq | vpaddusb Vx,Hx,Wx (66),(v1)
+dd: paddusw Pq,Qq | vpaddusw Vx,Hx,Wx (66),(v1)
+de: pmaxub Pq,Qq | vpmaxub Vx,Hx,Wx (66),(v1)
+df: pandn Pq,Qq | vpandn Vx,Hx,Wx (66),(v1)
+# 0x0f 0xe0-0xef
+e0: pavgb Pq,Qq | vpavgb Vx,Hx,Wx (66),(v1)
+e1: psraw Pq,Qq | vpsraw Vx,Hx,Wx (66),(v1)
+e2: psrad Pq,Qq | vpsrad Vx,Hx,Wx (66),(v1)
+e3: pavgw Pq,Qq | vpavgw Vx,Hx,Wx (66),(v1)
+e4: pmulhuw Pq,Qq | vpmulhuw Vx,Hx,Wx (66),(v1)
+e5: pmulhw Pq,Qq | vpmulhw Vx,Hx,Wx (66),(v1)
+e6: vcvttpd2dq Vx,Wpd (66) | vcvtdq2pd Vx,Wdq (F3) | vcvtpd2dq Vx,Wpd (F2)
+e7: movntq Mq,Pq | vmovntdq Mx,Vx (66)
+e8: psubsb Pq,Qq | vpsubsb Vx,Hx,Wx (66),(v1)
+e9: psubsw Pq,Qq | vpsubsw Vx,Hx,Wx (66),(v1)
+ea: pminsw Pq,Qq | vpminsw Vx,Hx,Wx (66),(v1)
+eb: por Pq,Qq | vpor Vx,Hx,Wx (66),(v1)
+ec: paddsb Pq,Qq | vpaddsb Vx,Hx,Wx (66),(v1)
+ed: paddsw Pq,Qq | vpaddsw Vx,Hx,Wx (66),(v1)
+ee: pmaxsw Pq,Qq | vpmaxsw Vx,Hx,Wx (66),(v1)
+ef: pxor Pq,Qq | vpxor Vx,Hx,Wx (66),(v1)
+# 0x0f 0xf0-0xff
+f0: vlddqu Vx,Mx (F2)
+f1: psllw Pq,Qq | vpsllw Vx,Hx,Wx (66),(v1)
+f2: pslld Pq,Qq | vpslld Vx,Hx,Wx (66),(v1)
+f3: psllq Pq,Qq | vpsllq Vx,Hx,Wx (66),(v1)
+f4: pmuludq Pq,Qq | vpmuludq Vx,Hx,Wx (66),(v1)
+f5: pmaddwd Pq,Qq | vpmaddwd Vx,Hx,Wx (66),(v1)
+f6: psadbw Pq,Qq | vpsadbw Vx,Hx,Wx (66),(v1)
+f7: maskmovq Pq,Nq | vmaskmovdqu Vx,Ux (66),(v1)
+f8: psubb Pq,Qq | vpsubb Vx,Hx,Wx (66),(v1)
+f9: psubw Pq,Qq | vpsubw Vx,Hx,Wx (66),(v1)
+fa: psubd Pq,Qq | vpsubd Vx,Hx,Wx (66),(v1)
+fb: psubq Pq,Qq | vpsubq Vx,Hx,Wx (66),(v1)
+fc: paddb Pq,Qq | vpaddb Vx,Hx,Wx (66),(v1)
+fd: paddw Pq,Qq | vpaddw Vx,Hx,Wx (66),(v1)
+fe: paddd Pq,Qq | vpaddd Vx,Hx,Wx (66),(v1)
+ff:
+EndTable
+
+Table: 3-byte opcode 1 (0x0f 0x38)
+Referrer: 3-byte escape 1
+AVXcode: 2
+# 0x0f 0x38 0x00-0x0f
+00: pshufb Pq,Qq | vpshufb Vx,Hx,Wx (66),(v1)
+01: phaddw Pq,Qq | vphaddw Vx,Hx,Wx (66),(v1)
+02: phaddd Pq,Qq | vphaddd Vx,Hx,Wx (66),(v1)
+03: phaddsw Pq,Qq | vphaddsw Vx,Hx,Wx (66),(v1)
+04: pmaddubsw Pq,Qq | vpmaddubsw Vx,Hx,Wx (66),(v1)
+05: phsubw Pq,Qq | vphsubw Vx,Hx,Wx (66),(v1)
+06: phsubd Pq,Qq | vphsubd Vx,Hx,Wx (66),(v1)
+07: phsubsw Pq,Qq | vphsubsw Vx,Hx,Wx (66),(v1)
+08: psignb Pq,Qq | vpsignb Vx,Hx,Wx (66),(v1)
+09: psignw Pq,Qq | vpsignw Vx,Hx,Wx (66),(v1)
+0a: psignd Pq,Qq | vpsignd Vx,Hx,Wx (66),(v1)
+0b: pmulhrsw Pq,Qq | vpmulhrsw Vx,Hx,Wx (66),(v1)
+0c: vpermilps Vx,Hx,Wx (66),(v)
+0d: vpermilpd Vx,Hx,Wx (66),(v)
+0e: vtestps Vx,Wx (66),(v)
+0f: vtestpd Vx,Wx (66),(v)
+# 0x0f 0x38 0x10-0x1f
+10: pblendvb Vdq,Wdq (66)
+11:
+12:
+13: vcvtph2ps Vx,Wx,Ib (66),(v)
+14: blendvps Vdq,Wdq (66)
+15: blendvpd Vdq,Wdq (66)
+16: vpermps Vqq,Hqq,Wqq (66),(v)
+17: vptest Vx,Wx (66)
+18: vbroadcastss Vx,Wd (66),(v)
+19: vbroadcastsd Vqq,Wq (66),(v)
+1a: vbroadcastf128 Vqq,Mdq (66),(v)
+1b:
+1c: pabsb Pq,Qq | vpabsb Vx,Wx (66),(v1)
+1d: pabsw Pq,Qq | vpabsw Vx,Wx (66),(v1)
+1e: pabsd Pq,Qq | vpabsd Vx,Wx (66),(v1)
+1f:
+# 0x0f 0x38 0x20-0x2f
+20: vpmovsxbw Vx,Ux/Mq (66),(v1)
+21: vpmovsxbd Vx,Ux/Md (66),(v1)
+22: vpmovsxbq Vx,Ux/Mw (66),(v1)
+23: vpmovsxwd Vx,Ux/Mq (66),(v1)
+24: vpmovsxwq Vx,Ux/Md (66),(v1)
+25: vpmovsxdq Vx,Ux/Mq (66),(v1)
+26:
+27:
+28: vpmuldq Vx,Hx,Wx (66),(v1)
+29: vpcmpeqq Vx,Hx,Wx (66),(v1)
+2a: vmovntdqa Vx,Mx (66),(v1)
+2b: vpackusdw Vx,Hx,Wx (66),(v1)
+2c: vmaskmovps Vx,Hx,Mx (66),(v)
+2d: vmaskmovpd Vx,Hx,Mx (66),(v)
+2e: vmaskmovps Mx,Hx,Vx (66),(v)
+2f: vmaskmovpd Mx,Hx,Vx (66),(v)
+# 0x0f 0x38 0x30-0x3f
+30: vpmovzxbw Vx,Ux/Mq (66),(v1)
+31: vpmovzxbd Vx,Ux/Md (66),(v1)
+32: vpmovzxbq Vx,Ux/Mw (66),(v1)
+33: vpmovzxwd Vx,Ux/Mq (66),(v1)
+34: vpmovzxwq Vx,Ux/Md (66),(v1)
+35: vpmovzxdq Vx,Ux/Mq (66),(v1)
+36: vpermd Vqq,Hqq,Wqq (66),(v)
+37: vpcmpgtq Vx,Hx,Wx (66),(v1)
+38: vpminsb Vx,Hx,Wx (66),(v1)
+39: vpminsd Vx,Hx,Wx (66),(v1)
+3a: vpminuw Vx,Hx,Wx (66),(v1)
+3b: vpminud Vx,Hx,Wx (66),(v1)
+3c: vpmaxsb Vx,Hx,Wx (66),(v1)
+3d: vpmaxsd Vx,Hx,Wx (66),(v1)
+3e: vpmaxuw Vx,Hx,Wx (66),(v1)
+3f: vpmaxud Vx,Hx,Wx (66),(v1)
+# 0x0f 0x38 0x40-0x8f
+40: vpmulld Vx,Hx,Wx (66),(v1)
+41: vphminposuw Vdq,Wdq (66),(v1)
+42:
+43:
+44:
+45: vpsrlvd/q Vx,Hx,Wx (66),(v)
+46: vpsravd Vx,Hx,Wx (66),(v)
+47: vpsllvd/q Vx,Hx,Wx (66),(v)
+# Skip 0x48-0x57
+58: vpbroadcastd Vx,Wx (66),(v)
+59: vpbroadcastq Vx,Wx (66),(v)
+5a: vbroadcasti128 Vqq,Mdq (66),(v)
+# Skip 0x5b-0x77
+78: vpbroadcastb Vx,Wx (66),(v)
+79: vpbroadcastw Vx,Wx (66),(v)
+# Skip 0x7a-0x7f
+80: INVEPT Gy,Mdq (66)
+81: INVPID Gy,Mdq (66)
+82: INVPCID Gy,Mdq (66)
+8c: vpmaskmovd/q Vx,Hx,Mx (66),(v)
+8e: vpmaskmovd/q Mx,Vx,Hx (66),(v)
+# 0x0f 0x38 0x90-0xbf (FMA)
+90: vgatherdd/q Vx,Hx,Wx (66),(v)
+91: vgatherqd/q Vx,Hx,Wx (66),(v)
+92: vgatherdps/d Vx,Hx,Wx (66),(v)
+93: vgatherqps/d Vx,Hx,Wx (66),(v)
+94:
+95:
+96: vfmaddsub132ps/d Vx,Hx,Wx (66),(v)
+97: vfmsubadd132ps/d Vx,Hx,Wx (66),(v)
+98: vfmadd132ps/d Vx,Hx,Wx (66),(v)
+99: vfmadd132ss/d Vx,Hx,Wx (66),(v),(v1)
+9a: vfmsub132ps/d Vx,Hx,Wx (66),(v)
+9b: vfmsub132ss/d Vx,Hx,Wx (66),(v),(v1)
+9c: vfnmadd132ps/d Vx,Hx,Wx (66),(v)
+9d: vfnmadd132ss/d Vx,Hx,Wx (66),(v),(v1)
+9e: vfnmsub132ps/d Vx,Hx,Wx (66),(v)
+9f: vfnmsub132ss/d Vx,Hx,Wx (66),(v),(v1)
+a6: vfmaddsub213ps/d Vx,Hx,Wx (66),(v)
+a7: vfmsubadd213ps/d Vx,Hx,Wx (66),(v)
+a8: vfmadd213ps/d Vx,Hx,Wx (66),(v)
+a9: vfmadd213ss/d Vx,Hx,Wx (66),(v),(v1)
+aa: vfmsub213ps/d Vx,Hx,Wx (66),(v)
+ab: vfmsub213ss/d Vx,Hx,Wx (66),(v),(v1)
+ac: vfnmadd213ps/d Vx,Hx,Wx (66),(v)
+ad: vfnmadd213ss/d Vx,Hx,Wx (66),(v),(v1)
+ae: vfnmsub213ps/d Vx,Hx,Wx (66),(v)
+af: vfnmsub213ss/d Vx,Hx,Wx (66),(v),(v1)
+b6: vfmaddsub231ps/d Vx,Hx,Wx (66),(v)
+b7: vfmsubadd231ps/d Vx,Hx,Wx (66),(v)
+b8: vfmadd231ps/d Vx,Hx,Wx (66),(v)
+b9: vfmadd231ss/d Vx,Hx,Wx (66),(v),(v1)
+ba: vfmsub231ps/d Vx,Hx,Wx (66),(v)
+bb: vfmsub231ss/d Vx,Hx,Wx (66),(v),(v1)
+bc: vfnmadd231ps/d Vx,Hx,Wx (66),(v)
+bd: vfnmadd231ss/d Vx,Hx,Wx (66),(v),(v1)
+be: vfnmsub231ps/d Vx,Hx,Wx (66),(v)
+bf: vfnmsub231ss/d Vx,Hx,Wx (66),(v),(v1)
+# 0x0f 0x38 0xc0-0xff
+db: VAESIMC Vdq,Wdq (66),(v1)
+dc: VAESENC Vdq,Hdq,Wdq (66),(v1)
+dd: VAESENCLAST Vdq,Hdq,Wdq (66),(v1)
+de: VAESDEC Vdq,Hdq,Wdq (66),(v1)
+df: VAESDECLAST Vdq,Hdq,Wdq (66),(v1)
+f0: MOVBE Gy,My | MOVBE Gw,Mw (66) | CRC32 Gd,Eb (F2) | CRC32 Gd,Eb (66&F2)
+f1: MOVBE My,Gy | MOVBE Mw,Gw (66) | CRC32 Gd,Ey (F2) | CRC32 Gd,Ew (66&F2)
+f2: ANDN Gy,By,Ey (v)
+f3: Grp17 (1A)
+f5: BZHI Gy,Ey,By (v) | PEXT Gy,By,Ey (F3),(v) | PDEP Gy,By,Ey (F2),(v)
+f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v)
+f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v)
+EndTable
+
+Table: 3-byte opcode 2 (0x0f 0x3a)
+Referrer: 3-byte escape 2
+AVXcode: 3
+# 0x0f 0x3a 0x00-0xff
+00: vpermq Vqq,Wqq,Ib (66),(v)
+01: vpermpd Vqq,Wqq,Ib (66),(v)
+02: vpblendd Vx,Hx,Wx,Ib (66),(v)
+03:
+04: vpermilps Vx,Wx,Ib (66),(v)
+05: vpermilpd Vx,Wx,Ib (66),(v)
+06: vperm2f128 Vqq,Hqq,Wqq,Ib (66),(v)
+07:
+08: vroundps Vx,Wx,Ib (66)
+09: vroundpd Vx,Wx,Ib (66)
+0a: vroundss Vss,Wss,Ib (66),(v1)
+0b: vroundsd Vsd,Wsd,Ib (66),(v1)
+0c: vblendps Vx,Hx,Wx,Ib (66)
+0d: vblendpd Vx,Hx,Wx,Ib (66)
+0e: vpblendw Vx,Hx,Wx,Ib (66),(v1)
+0f: palignr Pq,Qq,Ib | vpalignr Vx,Hx,Wx,Ib (66),(v1)
+14: vpextrb Rd/Mb,Vdq,Ib (66),(v1)
+15: vpextrw Rd/Mw,Vdq,Ib (66),(v1)
+16: vpextrd/q Ey,Vdq,Ib (66),(v1)
+17: vextractps Ed,Vdq,Ib (66),(v1)
+18: vinsertf128 Vqq,Hqq,Wqq,Ib (66),(v)
+19: vextractf128 Wdq,Vqq,Ib (66),(v)
+1d: vcvtps2ph Wx,Vx,Ib (66),(v)
+20: vpinsrb Vdq,Hdq,Ry/Mb,Ib (66),(v1)
+21: vinsertps Vdq,Hdq,Udq/Md,Ib (66),(v1)
+22: vpinsrd/q Vdq,Hdq,Ey,Ib (66),(v1)
+38: vinserti128 Vqq,Hqq,Wqq,Ib (66),(v)
+39: vextracti128 Wdq,Vqq,Ib (66),(v)
+40: vdpps Vx,Hx,Wx,Ib (66)
+41: vdppd Vdq,Hdq,Wdq,Ib (66),(v1)
+42: vmpsadbw Vx,Hx,Wx,Ib (66),(v1)
+44: vpclmulqdq Vdq,Hdq,Wdq,Ib (66),(v1)
+46: vperm2i128 Vqq,Hqq,Wqq,Ib (66),(v)
+4a: vblendvps Vx,Hx,Wx,Lx (66),(v)
+4b: vblendvpd Vx,Hx,Wx,Lx (66),(v)
+4c: vpblendvb Vx,Hx,Wx,Lx (66),(v1)
+60: vpcmpestrm Vdq,Wdq,Ib (66),(v1)
+61: vpcmpestri Vdq,Wdq,Ib (66),(v1)
+62: vpcmpistrm Vdq,Wdq,Ib (66),(v1)
+63: vpcmpistri Vdq,Wdq,Ib (66),(v1)
+df: VAESKEYGEN Vdq,Wdq,Ib (66),(v1)
+f0: RORX Gy,Ey,Ib (F2),(v)
+EndTable
+
+GrpTable: Grp1
+0: ADD
+1: OR
+2: ADC
+3: SBB
+4: AND
+5: SUB
+6: XOR
+7: CMP
+EndTable
+
+GrpTable: Grp1A
+0: POP
+EndTable
+
+GrpTable: Grp2
+0: ROL
+1: ROR
+2: RCL
+3: RCR
+4: SHL/SAL
+5: SHR
+6:
+7: SAR
+EndTable
+
+GrpTable: Grp3_1
+0: TEST Eb,Ib
+1:
+2: NOT Eb
+3: NEG Eb
+4: MUL AL,Eb
+5: IMUL AL,Eb
+6: DIV AL,Eb
+7: IDIV AL,Eb
+EndTable
+
+GrpTable: Grp3_2
+0: TEST Ev,Iz
+1:
+2: NOT Ev
+3: NEG Ev
+4: MUL rAX,Ev
+5: IMUL rAX,Ev
+6: DIV rAX,Ev
+7: IDIV rAX,Ev
+EndTable
+
+GrpTable: Grp4
+0: INC Eb
+1: DEC Eb
+EndTable
+
+GrpTable: Grp5
+0: INC Ev
+1: DEC Ev
+# Note: "forced64" is Intel CPU behavior (see comment about CALL insn).
+2: CALLN Ev (f64)
+3: CALLF Ep
+4: JMPN Ev (f64)
+5: JMPF Mp
+6: PUSH Ev (d64)
+7:
+EndTable
+
+GrpTable: Grp6
+0: SLDT Rv/Mw
+1: STR Rv/Mw
+2: LLDT Ew
+3: LTR Ew
+4: VERR Ew
+5: VERW Ew
+EndTable
+
+GrpTable: Grp7
+0: SGDT Ms | VMCALL (001),(11B) | VMLAUNCH (010),(11B) | VMRESUME (011),(11B) | VMXOFF (100),(11B)
+1: SIDT Ms | MONITOR (000),(11B) | MWAIT (001),(11B) | CLAC (010),(11B) | STAC (011),(11B)
+2: LGDT Ms | XGETBV (000),(11B) | XSETBV (001),(11B) | VMFUNC (100),(11B) | XEND (101)(11B) | XTEST (110)(11B)
+3: LIDT Ms
+4: SMSW Mw/Rv
+5:
+6: LMSW Ew
+7: INVLPG Mb | SWAPGS (o64),(000),(11B) | RDTSCP (001),(11B)
+EndTable
+
+GrpTable: Grp8
+4: BT
+5: BTS
+6: BTR
+7: BTC
+EndTable
+
+GrpTable: Grp9
+1: CMPXCHG8B/16B Mq/Mdq
+6: VMPTRLD Mq | VMCLEAR Mq (66) | VMXON Mq (F3) | RDRAND Rv (11B)
+7: VMPTRST Mq | VMPTRST Mq (F3) | RDSEED Rv (11B)
+EndTable
+
+GrpTable: Grp10
+EndTable
+
+# Grp11A and Grp11B are expressed as Grp11 in Intel SDM
+GrpTable: Grp11A
+0: MOV Eb,Ib
+7: XABORT Ib (000),(11B)
+EndTable
+
+GrpTable: Grp11B
+0: MOV Eb,Iz
+7: XBEGIN Jz (000),(11B)
+EndTable
+
+GrpTable: Grp12
+2: psrlw Nq,Ib (11B) | vpsrlw Hx,Ux,Ib (66),(11B),(v1)
+4: psraw Nq,Ib (11B) | vpsraw Hx,Ux,Ib (66),(11B),(v1)
+6: psllw Nq,Ib (11B) | vpsllw Hx,Ux,Ib (66),(11B),(v1)
+EndTable
+
+GrpTable: Grp13
+2: psrld Nq,Ib (11B) | vpsrld Hx,Ux,Ib (66),(11B),(v1)
+4: psrad Nq,Ib (11B) | vpsrad Hx,Ux,Ib (66),(11B),(v1)
+6: pslld Nq,Ib (11B) | vpslld Hx,Ux,Ib (66),(11B),(v1)
+EndTable
+
+GrpTable: Grp14
+2: psrlq Nq,Ib (11B) | vpsrlq Hx,Ux,Ib (66),(11B),(v1)
+3: vpsrldq Hx,Ux,Ib (66),(11B),(v1)
+6: psllq Nq,Ib (11B) | vpsllq Hx,Ux,Ib (66),(11B),(v1)
+7: vpslldq Hx,Ux,Ib (66),(11B),(v1)
+EndTable
+
+GrpTable: Grp15
+0: fxsave | RDFSBASE Ry (F3),(11B)
+1: fxstor | RDGSBASE Ry (F3),(11B)
+2: vldmxcsr Md (v1) | WRFSBASE Ry (F3),(11B)
+3: vstmxcsr Md (v1) | WRGSBASE Ry (F3),(11B)
+4: XSAVE
+5: XRSTOR | lfence (11B)
+6: XSAVEOPT | mfence (11B)
+7: clflush | sfence (11B)
+EndTable
+
+GrpTable: Grp16
+0: prefetch NTA
+1: prefetch T0
+2: prefetch T1
+3: prefetch T2
+EndTable
+
+GrpTable: Grp17
+1: BLSR By,Ey (v)
+2: BLSMSK By,Ey (v)
+3: BLSI By,Ey (v)
+EndTable
+
+# AMD's Prefetch Group
+GrpTable: GrpP
+0: PREFETCH
+1: PREFETCHW
+EndTable
+
+GrpTable: GrpPDLK
+0: MONTMUL
+1: XSHA1
+2: XSHA2
+EndTable
+
+GrpTable: GrpRNG
+0: xstore-rng
+1: xcrypt-ecb
+2: xcrypt-cbc
+4: xcrypt-cfb
+5: xcrypt-ofb
+EndTable
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
new file mode 100644
index 000000000000..bb41c20e6005
--- /dev/null
+++ b/tools/perf/util/intel-pt.c
@@ -0,0 +1,1956 @@
+/*
+ * intel_pt.c: Intel Processor Trace support
+ * Copyright (c) 2013-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+#include "../perf.h"
+#include "session.h"
+#include "machine.h"
+#include "tool.h"
+#include "event.h"
+#include "evlist.h"
+#include "evsel.h"
+#include "map.h"
+#include "color.h"
+#include "util.h"
+#include "thread.h"
+#include "thread-stack.h"
+#include "symbol.h"
+#include "callchain.h"
+#include "dso.h"
+#include "debug.h"
+#include "auxtrace.h"
+#include "tsc.h"
+#include "intel-pt.h"
+
+#include "intel-pt-decoder/intel-pt-log.h"
+#include "intel-pt-decoder/intel-pt-decoder.h"
+#include "intel-pt-decoder/intel-pt-insn-decoder.h"
+#include "intel-pt-decoder/intel-pt-pkt-decoder.h"
+
+#define MAX_TIMESTAMP (~0ULL)
+
+struct intel_pt {
+ struct auxtrace auxtrace;
+ struct auxtrace_queues queues;
+ struct auxtrace_heap heap;
+ u32 auxtrace_type;
+ struct perf_session *session;
+ struct machine *machine;
+ struct perf_evsel *switch_evsel;
+ struct thread *unknown_thread;
+ bool timeless_decoding;
+ bool sampling_mode;
+ bool snapshot_mode;
+ bool per_cpu_mmaps;
+ bool have_tsc;
+ bool data_queued;
+ bool est_tsc;
+ bool sync_switch;
+ int have_sched_switch;
+ u32 pmu_type;
+ u64 kernel_start;
+ u64 switch_ip;
+ u64 ptss_ip;
+
+ struct perf_tsc_conversion tc;
+ bool cap_user_time_zero;
+
+ struct itrace_synth_opts synth_opts;
+
+ bool sample_instructions;
+ u64 instructions_sample_type;
+ u64 instructions_sample_period;
+ u64 instructions_id;
+
+ bool sample_branches;
+ u32 branches_filter;
+ u64 branches_sample_type;
+ u64 branches_id;
+
+ bool sample_transactions;
+ u64 transactions_sample_type;
+ u64 transactions_id;
+
+ bool synth_needs_swap;
+
+ u64 tsc_bit;
+ u64 mtc_bit;
+ u64 mtc_freq_bits;
+ u32 tsc_ctc_ratio_n;
+ u32 tsc_ctc_ratio_d;
+ u64 cyc_bit;
+ u64 noretcomp_bit;
+ unsigned max_non_turbo_ratio;
+};
+
+enum switch_state {
+ INTEL_PT_SS_NOT_TRACING,
+ INTEL_PT_SS_UNKNOWN,
+ INTEL_PT_SS_TRACING,
+ INTEL_PT_SS_EXPECTING_SWITCH_EVENT,
+ INTEL_PT_SS_EXPECTING_SWITCH_IP,
+};
+
+struct intel_pt_queue {
+ struct intel_pt *pt;
+ unsigned int queue_nr;
+ struct auxtrace_buffer *buffer;
+ void *decoder;
+ const struct intel_pt_state *state;
+ struct ip_callchain *chain;
+ union perf_event *event_buf;
+ bool on_heap;
+ bool stop;
+ bool step_through_buffers;
+ bool use_buffer_pid_tid;
+ pid_t pid, tid;
+ int cpu;
+ int switch_state;
+ pid_t next_tid;
+ struct thread *thread;
+ bool exclude_kernel;
+ bool have_sample;
+ u64 time;
+ u64 timestamp;
+ u32 flags;
+ u16 insn_len;
+ u64 last_insn_cnt;
+};
+
+static void intel_pt_dump(struct intel_pt *pt __maybe_unused,
+ unsigned char *buf, size_t len)
+{
+ struct intel_pt_pkt packet;
+ size_t pos = 0;
+ int ret, pkt_len, i;
+ char desc[INTEL_PT_PKT_DESC_MAX];
+ const char *color = PERF_COLOR_BLUE;
+
+ color_fprintf(stdout, color,
+ ". ... Intel Processor Trace data: size %zu bytes\n",
+ len);
+
+ while (len) {
+ ret = intel_pt_get_packet(buf, len, &packet);
+ if (ret > 0)
+ pkt_len = ret;
+ else
+ pkt_len = 1;
+ printf(".");
+ color_fprintf(stdout, color, " %08x: ", pos);
+ for (i = 0; i < pkt_len; i++)
+ color_fprintf(stdout, color, " %02x", buf[i]);
+ for (; i < 16; i++)
+ color_fprintf(stdout, color, " ");
+ if (ret > 0) {
+ ret = intel_pt_pkt_desc(&packet, desc,
+ INTEL_PT_PKT_DESC_MAX);
+ if (ret > 0)
+ color_fprintf(stdout, color, " %s\n", desc);
+ } else {
+ color_fprintf(stdout, color, " Bad packet!\n");
+ }
+ pos += pkt_len;
+ buf += pkt_len;
+ len -= pkt_len;
+ }
+}
+
+static void intel_pt_dump_event(struct intel_pt *pt, unsigned char *buf,
+ size_t len)
+{
+ printf(".\n");
+ intel_pt_dump(pt, buf, len);
+}
+
+static int intel_pt_do_fix_overlap(struct intel_pt *pt, struct auxtrace_buffer *a,
+ struct auxtrace_buffer *b)
+{
+ void *start;
+
+ start = intel_pt_find_overlap(a->data, a->size, b->data, b->size,
+ pt->have_tsc);
+ if (!start)
+ return -EINVAL;
+ b->use_size = b->data + b->size - start;
+ b->use_data = start;
+ return 0;
+}
+
+static void intel_pt_use_buffer_pid_tid(struct intel_pt_queue *ptq,
+ struct auxtrace_queue *queue,
+ struct auxtrace_buffer *buffer)
+{
+ if (queue->cpu == -1 && buffer->cpu != -1)
+ ptq->cpu = buffer->cpu;
+
+ ptq->pid = buffer->pid;
+ ptq->tid = buffer->tid;
+
+ intel_pt_log("queue %u cpu %d pid %d tid %d\n",
+ ptq->queue_nr, ptq->cpu, ptq->pid, ptq->tid);
+
+ thread__zput(ptq->thread);
+
+ if (ptq->tid != -1) {
+ if (ptq->pid != -1)
+ ptq->thread = machine__findnew_thread(ptq->pt->machine,
+ ptq->pid,
+ ptq->tid);
+ else
+ ptq->thread = machine__find_thread(ptq->pt->machine, -1,
+ ptq->tid);
+ }
+}
+
+/* This function assumes data is processed sequentially only */
+static int intel_pt_get_trace(struct intel_pt_buffer *b, void *data)
+{
+ struct intel_pt_queue *ptq = data;
+ struct auxtrace_buffer *buffer = ptq->buffer, *old_buffer = buffer;
+ struct auxtrace_queue *queue;
+
+ if (ptq->stop) {
+ b->len = 0;
+ return 0;
+ }
+
+ queue = &ptq->pt->queues.queue_array[ptq->queue_nr];
+
+ buffer = auxtrace_buffer__next(queue, buffer);
+ if (!buffer) {
+ if (old_buffer)
+ auxtrace_buffer__drop_data(old_buffer);
+ b->len = 0;
+ return 0;
+ }
+
+ ptq->buffer = buffer;
+
+ if (!buffer->data) {
+ int fd = perf_data_file__fd(ptq->pt->session->file);
+
+ buffer->data = auxtrace_buffer__get_data(buffer, fd);
+ if (!buffer->data)
+ return -ENOMEM;
+ }
+
+ if (ptq->pt->snapshot_mode && !buffer->consecutive && old_buffer &&
+ intel_pt_do_fix_overlap(ptq->pt, old_buffer, buffer))
+ return -ENOMEM;
+
+ if (old_buffer)
+ auxtrace_buffer__drop_data(old_buffer);
+
+ if (buffer->use_data) {
+ b->len = buffer->use_size;
+ b->buf = buffer->use_data;
+ } else {
+ b->len = buffer->size;
+ b->buf = buffer->data;
+ }
+ b->ref_timestamp = buffer->reference;
+
+ if (!old_buffer || ptq->pt->sampling_mode || (ptq->pt->snapshot_mode &&
+ !buffer->consecutive)) {
+ b->consecutive = false;
+ b->trace_nr = buffer->buffer_nr + 1;
+ } else {
+ b->consecutive = true;
+ }
+
+ if (ptq->use_buffer_pid_tid && (ptq->pid != buffer->pid ||
+ ptq->tid != buffer->tid))
+ intel_pt_use_buffer_pid_tid(ptq, queue, buffer);
+
+ if (ptq->step_through_buffers)
+ ptq->stop = true;
+
+ if (!b->len)
+ return intel_pt_get_trace(b, data);
+
+ return 0;
+}
+
+struct intel_pt_cache_entry {
+ struct auxtrace_cache_entry entry;
+ u64 insn_cnt;
+ u64 byte_cnt;
+ enum intel_pt_insn_op op;
+ enum intel_pt_insn_branch branch;
+ int length;
+ int32_t rel;
+};
+
+static int intel_pt_config_div(const char *var, const char *value, void *data)
+{
+ int *d = data;
+ long val;
+
+ if (!strcmp(var, "intel-pt.cache-divisor")) {
+ val = strtol(value, NULL, 0);
+ if (val > 0 && val <= INT_MAX)
+ *d = val;
+ }
+
+ return 0;
+}
+
+static int intel_pt_cache_divisor(void)
+{
+ static int d;
+
+ if (d)
+ return d;
+
+ perf_config(intel_pt_config_div, &d);
+
+ if (!d)
+ d = 64;
+
+ return d;
+}
+
+static unsigned int intel_pt_cache_size(struct dso *dso,
+ struct machine *machine)
+{
+ off_t size;
+
+ size = dso__data_size(dso, machine);
+ size /= intel_pt_cache_divisor();
+ if (size < 1000)
+ return 10;
+ if (size > (1 << 21))
+ return 21;
+ return 32 - __builtin_clz(size);
+}
+
+static struct auxtrace_cache *intel_pt_cache(struct dso *dso,
+ struct machine *machine)
+{
+ struct auxtrace_cache *c;
+ unsigned int bits;
+
+ if (dso->auxtrace_cache)
+ return dso->auxtrace_cache;
+
+ bits = intel_pt_cache_size(dso, machine);
+
+ /* Ignoring cache creation failure */
+ c = auxtrace_cache__new(bits, sizeof(struct intel_pt_cache_entry), 200);
+
+ dso->auxtrace_cache = c;
+
+ return c;
+}
+
+static int intel_pt_cache_add(struct dso *dso, struct machine *machine,
+ u64 offset, u64 insn_cnt, u64 byte_cnt,
+ struct intel_pt_insn *intel_pt_insn)
+{
+ struct auxtrace_cache *c = intel_pt_cache(dso, machine);
+ struct intel_pt_cache_entry *e;
+ int err;
+
+ if (!c)
+ return -ENOMEM;
+
+ e = auxtrace_cache__alloc_entry(c);
+ if (!e)
+ return -ENOMEM;
+
+ e->insn_cnt = insn_cnt;
+ e->byte_cnt = byte_cnt;
+ e->op = intel_pt_insn->op;
+ e->branch = intel_pt_insn->branch;
+ e->length = intel_pt_insn->length;
+ e->rel = intel_pt_insn->rel;
+
+ err = auxtrace_cache__add(c, offset, &e->entry);
+ if (err)
+ auxtrace_cache__free_entry(c, e);
+
+ return err;
+}
+
+static struct intel_pt_cache_entry *
+intel_pt_cache_lookup(struct dso *dso, struct machine *machine, u64 offset)
+{
+ struct auxtrace_cache *c = intel_pt_cache(dso, machine);
+
+ if (!c)
+ return NULL;
+
+ return auxtrace_cache__lookup(dso->auxtrace_cache, offset);
+}
+
+static int intel_pt_walk_next_insn(struct intel_pt_insn *intel_pt_insn,
+ uint64_t *insn_cnt_ptr, uint64_t *ip,
+ uint64_t to_ip, uint64_t max_insn_cnt,
+ void *data)
+{
+ struct intel_pt_queue *ptq = data;
+ struct machine *machine = ptq->pt->machine;
+ struct thread *thread;
+ struct addr_location al;
+ unsigned char buf[1024];
+ size_t bufsz;
+ ssize_t len;
+ int x86_64;
+ u8 cpumode;
+ u64 offset, start_offset, start_ip;
+ u64 insn_cnt = 0;
+ bool one_map = true;
+
+ if (to_ip && *ip == to_ip)
+ goto out_no_cache;
+
+ bufsz = intel_pt_insn_max_size();
+
+ if (*ip >= ptq->pt->kernel_start)
+ cpumode = PERF_RECORD_MISC_KERNEL;
+ else
+ cpumode = PERF_RECORD_MISC_USER;
+
+ thread = ptq->thread;
+ if (!thread) {
+ if (cpumode != PERF_RECORD_MISC_KERNEL)
+ return -EINVAL;
+ thread = ptq->pt->unknown_thread;
+ }
+
+ while (1) {
+ thread__find_addr_map(thread, cpumode, MAP__FUNCTION, *ip, &al);
+ if (!al.map || !al.map->dso)
+ return -EINVAL;
+
+ if (al.map->dso->data.status == DSO_DATA_STATUS_ERROR &&
+ dso__data_status_seen(al.map->dso,
+ DSO_DATA_STATUS_SEEN_ITRACE))
+ return -ENOENT;
+
+ offset = al.map->map_ip(al.map, *ip);
+
+ if (!to_ip && one_map) {
+ struct intel_pt_cache_entry *e;
+
+ e = intel_pt_cache_lookup(al.map->dso, machine, offset);
+ if (e &&
+ (!max_insn_cnt || e->insn_cnt <= max_insn_cnt)) {
+ *insn_cnt_ptr = e->insn_cnt;
+ *ip += e->byte_cnt;
+ intel_pt_insn->op = e->op;
+ intel_pt_insn->branch = e->branch;
+ intel_pt_insn->length = e->length;
+ intel_pt_insn->rel = e->rel;
+ intel_pt_log_insn_no_data(intel_pt_insn, *ip);
+ return 0;
+ }
+ }
+
+ start_offset = offset;
+ start_ip = *ip;
+
+ /* Load maps to ensure dso->is_64_bit has been updated */
+ map__load(al.map, machine->symbol_filter);
+
+ x86_64 = al.map->dso->is_64_bit;
+
+ while (1) {
+ len = dso__data_read_offset(al.map->dso, machine,
+ offset, buf, bufsz);
+ if (len <= 0)
+ return -EINVAL;
+
+ if (intel_pt_get_insn(buf, len, x86_64, intel_pt_insn))
+ return -EINVAL;
+
+ intel_pt_log_insn(intel_pt_insn, *ip);
+
+ insn_cnt += 1;
+
+ if (intel_pt_insn->branch != INTEL_PT_BR_NO_BRANCH)
+ goto out;
+
+ if (max_insn_cnt && insn_cnt >= max_insn_cnt)
+ goto out_no_cache;
+
+ *ip += intel_pt_insn->length;
+
+ if (to_ip && *ip == to_ip)
+ goto out_no_cache;
+
+ if (*ip >= al.map->end)
+ break;
+
+ offset += intel_pt_insn->length;
+ }
+ one_map = false;
+ }
+out:
+ *insn_cnt_ptr = insn_cnt;
+
+ if (!one_map)
+ goto out_no_cache;
+
+ /*
+ * Didn't lookup in the 'to_ip' case, so do it now to prevent duplicate
+ * entries.
+ */
+ if (to_ip) {
+ struct intel_pt_cache_entry *e;
+
+ e = intel_pt_cache_lookup(al.map->dso, machine, start_offset);
+ if (e)
+ return 0;
+ }
+
+ /* Ignore cache errors */
+ intel_pt_cache_add(al.map->dso, machine, start_offset, insn_cnt,
+ *ip - start_ip, intel_pt_insn);
+
+ return 0;
+
+out_no_cache:
+ *insn_cnt_ptr = insn_cnt;
+ return 0;
+}
+
+static bool intel_pt_get_config(struct intel_pt *pt,
+ struct perf_event_attr *attr, u64 *config)
+{
+ if (attr->type == pt->pmu_type) {
+ if (config)
+ *config = attr->config;
+ return true;
+ }
+
+ return false;
+}
+
+static bool intel_pt_exclude_kernel(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, NULL) &&
+ !evsel->attr.exclude_kernel)
+ return false;
+ }
+ return true;
+}
+
+static bool intel_pt_return_compression(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+ u64 config;
+
+ if (!pt->noretcomp_bit)
+ return true;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, &config) &&
+ (config & pt->noretcomp_bit))
+ return false;
+ }
+ return true;
+}
+
+static unsigned int intel_pt_mtc_period(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+ unsigned int shift;
+ u64 config;
+
+ if (!pt->mtc_freq_bits)
+ return 0;
+
+ for (shift = 0, config = pt->mtc_freq_bits; !(config & 1); shift++)
+ config >>= 1;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, &config))
+ return (config & pt->mtc_freq_bits) >> shift;
+ }
+ return 0;
+}
+
+static bool intel_pt_timeless_decoding(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+ bool timeless_decoding = true;
+ u64 config;
+
+ if (!pt->tsc_bit || !pt->cap_user_time_zero)
+ return true;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (!(evsel->attr.sample_type & PERF_SAMPLE_TIME))
+ return true;
+ if (intel_pt_get_config(pt, &evsel->attr, &config)) {
+ if (config & pt->tsc_bit)
+ timeless_decoding = false;
+ else
+ return true;
+ }
+ }
+ return timeless_decoding;
+}
+
+static bool intel_pt_tracing_kernel(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, NULL) &&
+ !evsel->attr.exclude_kernel)
+ return true;
+ }
+ return false;
+}
+
+static bool intel_pt_have_tsc(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+ bool have_tsc = false;
+ u64 config;
+
+ if (!pt->tsc_bit)
+ return false;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, &config)) {
+ if (config & pt->tsc_bit)
+ have_tsc = true;
+ else
+ return false;
+ }
+ }
+ return have_tsc;
+}
+
+static u64 intel_pt_ns_to_ticks(const struct intel_pt *pt, u64 ns)
+{
+ u64 quot, rem;
+
+ quot = ns / pt->tc.time_mult;
+ rem = ns % pt->tc.time_mult;
+ return (quot << pt->tc.time_shift) + (rem << pt->tc.time_shift) /
+ pt->tc.time_mult;
+}
+
+static struct intel_pt_queue *intel_pt_alloc_queue(struct intel_pt *pt,
+ unsigned int queue_nr)
+{
+ struct intel_pt_params params = { .get_trace = 0, };
+ struct intel_pt_queue *ptq;
+
+ ptq = zalloc(sizeof(struct intel_pt_queue));
+ if (!ptq)
+ return NULL;
+
+ if (pt->synth_opts.callchain) {
+ size_t sz = sizeof(struct ip_callchain);
+
+ sz += pt->synth_opts.callchain_sz * sizeof(u64);
+ ptq->chain = zalloc(sz);
+ if (!ptq->chain)
+ goto out_free;
+ }
+
+ ptq->event_buf = malloc(PERF_SAMPLE_MAX_SIZE);
+ if (!ptq->event_buf)
+ goto out_free;
+
+ ptq->pt = pt;
+ ptq->queue_nr = queue_nr;
+ ptq->exclude_kernel = intel_pt_exclude_kernel(pt);
+ ptq->pid = -1;
+ ptq->tid = -1;
+ ptq->cpu = -1;
+ ptq->next_tid = -1;
+
+ params.get_trace = intel_pt_get_trace;
+ params.walk_insn = intel_pt_walk_next_insn;
+ params.data = ptq;
+ params.return_compression = intel_pt_return_compression(pt);
+ params.max_non_turbo_ratio = pt->max_non_turbo_ratio;
+ params.mtc_period = intel_pt_mtc_period(pt);
+ params.tsc_ctc_ratio_n = pt->tsc_ctc_ratio_n;
+ params.tsc_ctc_ratio_d = pt->tsc_ctc_ratio_d;
+
+ if (pt->synth_opts.instructions) {
+ if (pt->synth_opts.period) {
+ switch (pt->synth_opts.period_type) {
+ case PERF_ITRACE_PERIOD_INSTRUCTIONS:
+ params.period_type =
+ INTEL_PT_PERIOD_INSTRUCTIONS;
+ params.period = pt->synth_opts.period;
+ break;
+ case PERF_ITRACE_PERIOD_TICKS:
+ params.period_type = INTEL_PT_PERIOD_TICKS;
+ params.period = pt->synth_opts.period;
+ break;
+ case PERF_ITRACE_PERIOD_NANOSECS:
+ params.period_type = INTEL_PT_PERIOD_TICKS;
+ params.period = intel_pt_ns_to_ticks(pt,
+ pt->synth_opts.period);
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (!params.period) {
+ params.period_type = INTEL_PT_PERIOD_INSTRUCTIONS;
+ params.period = 1000;
+ }
+ }
+
+ ptq->decoder = intel_pt_decoder_new(&params);
+ if (!ptq->decoder)
+ goto out_free;
+
+ return ptq;
+
+out_free:
+ zfree(&ptq->event_buf);
+ zfree(&ptq->chain);
+ free(ptq);
+ return NULL;
+}
+
+static void intel_pt_free_queue(void *priv)
+{
+ struct intel_pt_queue *ptq = priv;
+
+ if (!ptq)
+ return;
+ thread__zput(ptq->thread);
+ intel_pt_decoder_free(ptq->decoder);
+ zfree(&ptq->event_buf);
+ zfree(&ptq->chain);
+ free(ptq);
+}
+
+static void intel_pt_set_pid_tid_cpu(struct intel_pt *pt,
+ struct auxtrace_queue *queue)
+{
+ struct intel_pt_queue *ptq = queue->priv;
+
+ if (queue->tid == -1 || pt->have_sched_switch) {
+ ptq->tid = machine__get_current_tid(pt->machine, ptq->cpu);
+ thread__zput(ptq->thread);
+ }
+
+ if (!ptq->thread && ptq->tid != -1)
+ ptq->thread = machine__find_thread(pt->machine, -1, ptq->tid);
+
+ if (ptq->thread) {
+ ptq->pid = ptq->thread->pid_;
+ if (queue->cpu == -1)
+ ptq->cpu = ptq->thread->cpu;
+ }
+}
+
+static void intel_pt_sample_flags(struct intel_pt_queue *ptq)
+{
+ if (ptq->state->flags & INTEL_PT_ABORT_TX) {
+ ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TX_ABORT;
+ } else if (ptq->state->flags & INTEL_PT_ASYNC) {
+ if (ptq->state->to_ip)
+ ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_INTERRUPT;
+ else
+ ptq->flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_TRACE_END;
+ ptq->insn_len = 0;
+ } else {
+ if (ptq->state->from_ip)
+ ptq->flags = intel_pt_insn_type(ptq->state->insn_op);
+ else
+ ptq->flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_TRACE_BEGIN;
+ if (ptq->state->flags & INTEL_PT_IN_TX)
+ ptq->flags |= PERF_IP_FLAG_IN_TX;
+ ptq->insn_len = ptq->state->insn_len;
+ }
+}
+
+static int intel_pt_setup_queue(struct intel_pt *pt,
+ struct auxtrace_queue *queue,
+ unsigned int queue_nr)
+{
+ struct intel_pt_queue *ptq = queue->priv;
+
+ if (list_empty(&queue->head))
+ return 0;
+
+ if (!ptq) {
+ ptq = intel_pt_alloc_queue(pt, queue_nr);
+ if (!ptq)
+ return -ENOMEM;
+ queue->priv = ptq;
+
+ if (queue->cpu != -1)
+ ptq->cpu = queue->cpu;
+ ptq->tid = queue->tid;
+
+ if (pt->sampling_mode) {
+ if (pt->timeless_decoding)
+ ptq->step_through_buffers = true;
+ if (pt->timeless_decoding || !pt->have_sched_switch)
+ ptq->use_buffer_pid_tid = true;
+ }
+ }
+
+ if (!ptq->on_heap &&
+ (!pt->sync_switch ||
+ ptq->switch_state != INTEL_PT_SS_EXPECTING_SWITCH_EVENT)) {
+ const struct intel_pt_state *state;
+ int ret;
+
+ if (pt->timeless_decoding)
+ return 0;
+
+ intel_pt_log("queue %u getting timestamp\n", queue_nr);
+ intel_pt_log("queue %u decoding cpu %d pid %d tid %d\n",
+ queue_nr, ptq->cpu, ptq->pid, ptq->tid);
+ while (1) {
+ state = intel_pt_decode(ptq->decoder);
+ if (state->err) {
+ if (state->err == INTEL_PT_ERR_NODATA) {
+ intel_pt_log("queue %u has no timestamp\n",
+ queue_nr);
+ return 0;
+ }
+ continue;
+ }
+ if (state->timestamp)
+ break;
+ }
+
+ ptq->timestamp = state->timestamp;
+ intel_pt_log("queue %u timestamp 0x%" PRIx64 "\n",
+ queue_nr, ptq->timestamp);
+ ptq->state = state;
+ ptq->have_sample = true;
+ intel_pt_sample_flags(ptq);
+ ret = auxtrace_heap__add(&pt->heap, queue_nr, ptq->timestamp);
+ if (ret)
+ return ret;
+ ptq->on_heap = true;
+ }
+
+ return 0;
+}
+
+static int intel_pt_setup_queues(struct intel_pt *pt)
+{
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < pt->queues.nr_queues; i++) {
+ ret = intel_pt_setup_queue(pt, &pt->queues.queue_array[i], i);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static int intel_pt_inject_event(union perf_event *event,
+ struct perf_sample *sample, u64 type,
+ bool swapped)
+{
+ event->header.size = perf_event__sample_event_size(sample, type, 0);
+ return perf_event__synthesize_sample(event, type, 0, sample, swapped);
+}
+
+static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq)
+{
+ int ret;
+ struct intel_pt *pt = ptq->pt;
+ union perf_event *event = ptq->event_buf;
+ struct perf_sample sample = { .ip = 0, };
+
+ event->sample.header.type = PERF_RECORD_SAMPLE;
+ event->sample.header.misc = PERF_RECORD_MISC_USER;
+ event->sample.header.size = sizeof(struct perf_event_header);
+
+ if (!pt->timeless_decoding)
+ sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
+
+ sample.ip = ptq->state->from_ip;
+ sample.pid = ptq->pid;
+ sample.tid = ptq->tid;
+ sample.addr = ptq->state->to_ip;
+ sample.id = ptq->pt->branches_id;
+ sample.stream_id = ptq->pt->branches_id;
+ sample.period = 1;
+ sample.cpu = ptq->cpu;
+ sample.flags = ptq->flags;
+ sample.insn_len = ptq->insn_len;
+
+ if (pt->branches_filter && !(pt->branches_filter & ptq->flags))
+ return 0;
+
+ if (pt->synth_opts.inject) {
+ ret = intel_pt_inject_event(event, &sample,
+ pt->branches_sample_type,
+ pt->synth_needs_swap);
+ if (ret)
+ return ret;
+ }
+
+ ret = perf_session__deliver_synth_event(pt->session, event, &sample);
+ if (ret)
+ pr_err("Intel Processor Trace: failed to deliver branch event, error %d\n",
+ ret);
+
+ return ret;
+}
+
+static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq)
+{
+ int ret;
+ struct intel_pt *pt = ptq->pt;
+ union perf_event *event = ptq->event_buf;
+ struct perf_sample sample = { .ip = 0, };
+
+ event->sample.header.type = PERF_RECORD_SAMPLE;
+ event->sample.header.misc = PERF_RECORD_MISC_USER;
+ event->sample.header.size = sizeof(struct perf_event_header);
+
+ if (!pt->timeless_decoding)
+ sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
+
+ sample.ip = ptq->state->from_ip;
+ sample.pid = ptq->pid;
+ sample.tid = ptq->tid;
+ sample.addr = ptq->state->to_ip;
+ sample.id = ptq->pt->instructions_id;
+ sample.stream_id = ptq->pt->instructions_id;
+ sample.period = ptq->state->tot_insn_cnt - ptq->last_insn_cnt;
+ sample.cpu = ptq->cpu;
+ sample.flags = ptq->flags;
+ sample.insn_len = ptq->insn_len;
+
+ ptq->last_insn_cnt = ptq->state->tot_insn_cnt;
+
+ if (pt->synth_opts.callchain) {
+ thread_stack__sample(ptq->thread, ptq->chain,
+ pt->synth_opts.callchain_sz, sample.ip);
+ sample.callchain = ptq->chain;
+ }
+
+ if (pt->synth_opts.inject) {
+ ret = intel_pt_inject_event(event, &sample,
+ pt->instructions_sample_type,
+ pt->synth_needs_swap);
+ if (ret)
+ return ret;
+ }
+
+ ret = perf_session__deliver_synth_event(pt->session, event, &sample);
+ if (ret)
+ pr_err("Intel Processor Trace: failed to deliver instruction event, error %d\n",
+ ret);
+
+ return ret;
+}
+
+static int intel_pt_synth_transaction_sample(struct intel_pt_queue *ptq)
+{
+ int ret;
+ struct intel_pt *pt = ptq->pt;
+ union perf_event *event = ptq->event_buf;
+ struct perf_sample sample = { .ip = 0, };
+
+ event->sample.header.type = PERF_RECORD_SAMPLE;
+ event->sample.header.misc = PERF_RECORD_MISC_USER;
+ event->sample.header.size = sizeof(struct perf_event_header);
+
+ if (!pt->timeless_decoding)
+ sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
+
+ sample.ip = ptq->state->from_ip;
+ sample.pid = ptq->pid;
+ sample.tid = ptq->tid;
+ sample.addr = ptq->state->to_ip;
+ sample.id = ptq->pt->transactions_id;
+ sample.stream_id = ptq->pt->transactions_id;
+ sample.period = 1;
+ sample.cpu = ptq->cpu;
+ sample.flags = ptq->flags;
+ sample.insn_len = ptq->insn_len;
+
+ if (pt->synth_opts.callchain) {
+ thread_stack__sample(ptq->thread, ptq->chain,
+ pt->synth_opts.callchain_sz, sample.ip);
+ sample.callchain = ptq->chain;
+ }
+
+ if (pt->synth_opts.inject) {
+ ret = intel_pt_inject_event(event, &sample,
+ pt->transactions_sample_type,
+ pt->synth_needs_swap);
+ if (ret)
+ return ret;
+ }
+
+ ret = perf_session__deliver_synth_event(pt->session, event, &sample);
+ if (ret)
+ pr_err("Intel Processor Trace: failed to deliver transaction event, error %d\n",
+ ret);
+
+ return ret;
+}
+
+static int intel_pt_synth_error(struct intel_pt *pt, int code, int cpu,
+ pid_t pid, pid_t tid, u64 ip)
+{
+ union perf_event event;
+ char msg[MAX_AUXTRACE_ERROR_MSG];
+ int err;
+
+ intel_pt__strerror(code, msg, MAX_AUXTRACE_ERROR_MSG);
+
+ auxtrace_synth_error(&event.auxtrace_error, PERF_AUXTRACE_ERROR_ITRACE,
+ code, cpu, pid, tid, ip, msg);
+
+ err = perf_session__deliver_synth_event(pt->session, &event, NULL);
+ if (err)
+ pr_err("Intel Processor Trace: failed to deliver error event, error %d\n",
+ err);
+
+ return err;
+}
+
+static int intel_pt_next_tid(struct intel_pt *pt, struct intel_pt_queue *ptq)
+{
+ struct auxtrace_queue *queue;
+ pid_t tid = ptq->next_tid;
+ int err;
+
+ if (tid == -1)
+ return 0;
+
+ intel_pt_log("switch: cpu %d tid %d\n", ptq->cpu, tid);
+
+ err = machine__set_current_tid(pt->machine, ptq->cpu, -1, tid);
+
+ queue = &pt->queues.queue_array[ptq->queue_nr];
+ intel_pt_set_pid_tid_cpu(pt, queue);
+
+ ptq->next_tid = -1;
+
+ return err;
+}
+
+static inline bool intel_pt_is_switch_ip(struct intel_pt_queue *ptq, u64 ip)
+{
+ struct intel_pt *pt = ptq->pt;
+
+ return ip == pt->switch_ip &&
+ (ptq->flags & PERF_IP_FLAG_BRANCH) &&
+ !(ptq->flags & (PERF_IP_FLAG_CONDITIONAL | PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_INTERRUPT | PERF_IP_FLAG_TX_ABORT));
+}
+
+static int intel_pt_sample(struct intel_pt_queue *ptq)
+{
+ const struct intel_pt_state *state = ptq->state;
+ struct intel_pt *pt = ptq->pt;
+ int err;
+
+ if (!ptq->have_sample)
+ return 0;
+
+ ptq->have_sample = false;
+
+ if (pt->sample_instructions &&
+ (state->type & INTEL_PT_INSTRUCTION)) {
+ err = intel_pt_synth_instruction_sample(ptq);
+ if (err)
+ return err;
+ }
+
+ if (pt->sample_transactions &&
+ (state->type & INTEL_PT_TRANSACTION)) {
+ err = intel_pt_synth_transaction_sample(ptq);
+ if (err)
+ return err;
+ }
+
+ if (!(state->type & INTEL_PT_BRANCH))
+ return 0;
+
+ if (pt->synth_opts.callchain)
+ thread_stack__event(ptq->thread, ptq->flags, state->from_ip,
+ state->to_ip, ptq->insn_len,
+ state->trace_nr);
+ else
+ thread_stack__set_trace_nr(ptq->thread, state->trace_nr);
+
+ if (pt->sample_branches) {
+ err = intel_pt_synth_branch_sample(ptq);
+ if (err)
+ return err;
+ }
+
+ if (!pt->sync_switch)
+ return 0;
+
+ if (intel_pt_is_switch_ip(ptq, state->to_ip)) {
+ switch (ptq->switch_state) {
+ case INTEL_PT_SS_UNKNOWN:
+ case INTEL_PT_SS_EXPECTING_SWITCH_IP:
+ err = intel_pt_next_tid(pt, ptq);
+ if (err)
+ return err;
+ ptq->switch_state = INTEL_PT_SS_TRACING;
+ break;
+ default:
+ ptq->switch_state = INTEL_PT_SS_EXPECTING_SWITCH_EVENT;
+ return 1;
+ }
+ } else if (!state->to_ip) {
+ ptq->switch_state = INTEL_PT_SS_NOT_TRACING;
+ } else if (ptq->switch_state == INTEL_PT_SS_NOT_TRACING) {
+ ptq->switch_state = INTEL_PT_SS_UNKNOWN;
+ } else if (ptq->switch_state == INTEL_PT_SS_UNKNOWN &&
+ state->to_ip == pt->ptss_ip &&
+ (ptq->flags & PERF_IP_FLAG_CALL)) {
+ ptq->switch_state = INTEL_PT_SS_TRACING;
+ }
+
+ return 0;
+}
+
+static u64 intel_pt_switch_ip(struct machine *machine, u64 *ptss_ip)
+{
+ struct map *map;
+ struct symbol *sym, *start;
+ u64 ip, switch_ip = 0;
+
+ if (ptss_ip)
+ *ptss_ip = 0;
+
+ map = machine__kernel_map(machine, MAP__FUNCTION);
+ if (!map)
+ return 0;
+
+ if (map__load(map, machine->symbol_filter))
+ return 0;
+
+ start = dso__first_symbol(map->dso, MAP__FUNCTION);
+
+ for (sym = start; sym; sym = dso__next_symbol(sym)) {
+ if (sym->binding == STB_GLOBAL &&
+ !strcmp(sym->name, "__switch_to")) {
+ ip = map->unmap_ip(map, sym->start);
+ if (ip >= map->start && ip < map->end) {
+ switch_ip = ip;
+ break;
+ }
+ }
+ }
+
+ if (!switch_ip || !ptss_ip)
+ return 0;
+
+ for (sym = start; sym; sym = dso__next_symbol(sym)) {
+ if (!strcmp(sym->name, "perf_trace_sched_switch")) {
+ ip = map->unmap_ip(map, sym->start);
+ if (ip >= map->start && ip < map->end) {
+ *ptss_ip = ip;
+ break;
+ }
+ }
+ }
+
+ return switch_ip;
+}
+
+static int intel_pt_run_decoder(struct intel_pt_queue *ptq, u64 *timestamp)
+{
+ const struct intel_pt_state *state = ptq->state;
+ struct intel_pt *pt = ptq->pt;
+ int err;
+
+ if (!pt->kernel_start) {
+ pt->kernel_start = machine__kernel_start(pt->machine);
+ if (pt->per_cpu_mmaps && pt->have_sched_switch &&
+ !pt->timeless_decoding && intel_pt_tracing_kernel(pt) &&
+ !pt->sampling_mode) {
+ pt->switch_ip = intel_pt_switch_ip(pt->machine,
+ &pt->ptss_ip);
+ if (pt->switch_ip) {
+ intel_pt_log("switch_ip: %"PRIx64" ptss_ip: %"PRIx64"\n",
+ pt->switch_ip, pt->ptss_ip);
+ pt->sync_switch = true;
+ }
+ }
+ }
+
+ intel_pt_log("queue %u decoding cpu %d pid %d tid %d\n",
+ ptq->queue_nr, ptq->cpu, ptq->pid, ptq->tid);
+ while (1) {
+ err = intel_pt_sample(ptq);
+ if (err)
+ return err;
+
+ state = intel_pt_decode(ptq->decoder);
+ if (state->err) {
+ if (state->err == INTEL_PT_ERR_NODATA)
+ return 1;
+ if (pt->sync_switch &&
+ state->from_ip >= pt->kernel_start) {
+ pt->sync_switch = false;
+ intel_pt_next_tid(pt, ptq);
+ }
+ if (pt->synth_opts.errors) {
+ err = intel_pt_synth_error(pt, state->err,
+ ptq->cpu, ptq->pid,
+ ptq->tid,
+ state->from_ip);
+ if (err)
+ return err;
+ }
+ continue;
+ }
+
+ ptq->state = state;
+ ptq->have_sample = true;
+ intel_pt_sample_flags(ptq);
+
+ /* Use estimated TSC upon return to user space */
+ if (pt->est_tsc &&
+ (state->from_ip >= pt->kernel_start || !state->from_ip) &&
+ state->to_ip && state->to_ip < pt->kernel_start) {
+ intel_pt_log("TSC %"PRIx64" est. TSC %"PRIx64"\n",
+ state->timestamp, state->est_timestamp);
+ ptq->timestamp = state->est_timestamp;
+ /* Use estimated TSC in unknown switch state */
+ } else if (pt->sync_switch &&
+ ptq->switch_state == INTEL_PT_SS_UNKNOWN &&
+ intel_pt_is_switch_ip(ptq, state->to_ip) &&
+ ptq->next_tid == -1) {
+ intel_pt_log("TSC %"PRIx64" est. TSC %"PRIx64"\n",
+ state->timestamp, state->est_timestamp);
+ ptq->timestamp = state->est_timestamp;
+ } else if (state->timestamp > ptq->timestamp) {
+ ptq->timestamp = state->timestamp;
+ }
+
+ if (!pt->timeless_decoding && ptq->timestamp >= *timestamp) {
+ *timestamp = ptq->timestamp;
+ return 0;
+ }
+ }
+ return 0;
+}
+
+static inline int intel_pt_update_queues(struct intel_pt *pt)
+{
+ if (pt->queues.new_data) {
+ pt->queues.new_data = false;
+ return intel_pt_setup_queues(pt);
+ }
+ return 0;
+}
+
+static int intel_pt_process_queues(struct intel_pt *pt, u64 timestamp)
+{
+ unsigned int queue_nr;
+ u64 ts;
+ int ret;
+
+ while (1) {
+ struct auxtrace_queue *queue;
+ struct intel_pt_queue *ptq;
+
+ if (!pt->heap.heap_cnt)
+ return 0;
+
+ if (pt->heap.heap_array[0].ordinal >= timestamp)
+ return 0;
+
+ queue_nr = pt->heap.heap_array[0].queue_nr;
+ queue = &pt->queues.queue_array[queue_nr];
+ ptq = queue->priv;
+
+ intel_pt_log("queue %u processing 0x%" PRIx64 " to 0x%" PRIx64 "\n",
+ queue_nr, pt->heap.heap_array[0].ordinal,
+ timestamp);
+
+ auxtrace_heap__pop(&pt->heap);
+
+ if (pt->heap.heap_cnt) {
+ ts = pt->heap.heap_array[0].ordinal + 1;
+ if (ts > timestamp)
+ ts = timestamp;
+ } else {
+ ts = timestamp;
+ }
+
+ intel_pt_set_pid_tid_cpu(pt, queue);
+
+ ret = intel_pt_run_decoder(ptq, &ts);
+
+ if (ret < 0) {
+ auxtrace_heap__add(&pt->heap, queue_nr, ts);
+ return ret;
+ }
+
+ if (!ret) {
+ ret = auxtrace_heap__add(&pt->heap, queue_nr, ts);
+ if (ret < 0)
+ return ret;
+ } else {
+ ptq->on_heap = false;
+ }
+ }
+
+ return 0;
+}
+
+static int intel_pt_process_timeless_queues(struct intel_pt *pt, pid_t tid,
+ u64 time_)
+{
+ struct auxtrace_queues *queues = &pt->queues;
+ unsigned int i;
+ u64 ts = 0;
+
+ for (i = 0; i < queues->nr_queues; i++) {
+ struct auxtrace_queue *queue = &pt->queues.queue_array[i];
+ struct intel_pt_queue *ptq = queue->priv;
+
+ if (ptq && (tid == -1 || ptq->tid == tid)) {
+ ptq->time = time_;
+ intel_pt_set_pid_tid_cpu(pt, queue);
+ intel_pt_run_decoder(ptq, &ts);
+ }
+ }
+ return 0;
+}
+
+static int intel_pt_lost(struct intel_pt *pt, struct perf_sample *sample)
+{
+ return intel_pt_synth_error(pt, INTEL_PT_ERR_LOST, sample->cpu,
+ sample->pid, sample->tid, 0);
+}
+
+static struct intel_pt_queue *intel_pt_cpu_to_ptq(struct intel_pt *pt, int cpu)
+{
+ unsigned i, j;
+
+ if (cpu < 0 || !pt->queues.nr_queues)
+ return NULL;
+
+ if ((unsigned)cpu >= pt->queues.nr_queues)
+ i = pt->queues.nr_queues - 1;
+ else
+ i = cpu;
+
+ if (pt->queues.queue_array[i].cpu == cpu)
+ return pt->queues.queue_array[i].priv;
+
+ for (j = 0; i > 0; j++) {
+ if (pt->queues.queue_array[--i].cpu == cpu)
+ return pt->queues.queue_array[i].priv;
+ }
+
+ for (; j < pt->queues.nr_queues; j++) {
+ if (pt->queues.queue_array[j].cpu == cpu)
+ return pt->queues.queue_array[j].priv;
+ }
+
+ return NULL;
+}
+
+static int intel_pt_process_switch(struct intel_pt *pt,
+ struct perf_sample *sample)
+{
+ struct intel_pt_queue *ptq;
+ struct perf_evsel *evsel;
+ pid_t tid;
+ int cpu, err;
+
+ evsel = perf_evlist__id2evsel(pt->session->evlist, sample->id);
+ if (evsel != pt->switch_evsel)
+ return 0;
+
+ tid = perf_evsel__intval(evsel, sample, "next_pid");
+ cpu = sample->cpu;
+
+ intel_pt_log("sched_switch: cpu %d tid %d time %"PRIu64" tsc %#"PRIx64"\n",
+ cpu, tid, sample->time, perf_time_to_tsc(sample->time,
+ &pt->tc));
+
+ if (!pt->sync_switch)
+ goto out;
+
+ ptq = intel_pt_cpu_to_ptq(pt, cpu);
+ if (!ptq)
+ goto out;
+
+ switch (ptq->switch_state) {
+ case INTEL_PT_SS_NOT_TRACING:
+ ptq->next_tid = -1;
+ break;
+ case INTEL_PT_SS_UNKNOWN:
+ case INTEL_PT_SS_TRACING:
+ ptq->next_tid = tid;
+ ptq->switch_state = INTEL_PT_SS_EXPECTING_SWITCH_IP;
+ return 0;
+ case INTEL_PT_SS_EXPECTING_SWITCH_EVENT:
+ if (!ptq->on_heap) {
+ ptq->timestamp = perf_time_to_tsc(sample->time,
+ &pt->tc);
+ err = auxtrace_heap__add(&pt->heap, ptq->queue_nr,
+ ptq->timestamp);
+ if (err)
+ return err;
+ ptq->on_heap = true;
+ }
+ ptq->switch_state = INTEL_PT_SS_TRACING;
+ break;
+ case INTEL_PT_SS_EXPECTING_SWITCH_IP:
+ ptq->next_tid = tid;
+ intel_pt_log("ERROR: cpu %d expecting switch ip\n", cpu);
+ break;
+ default:
+ break;
+ }
+out:
+ return machine__set_current_tid(pt->machine, cpu, -1, tid);
+}
+
+static int intel_pt_process_itrace_start(struct intel_pt *pt,
+ union perf_event *event,
+ struct perf_sample *sample)
+{
+ if (!pt->per_cpu_mmaps)
+ return 0;
+
+ intel_pt_log("itrace_start: cpu %d pid %d tid %d time %"PRIu64" tsc %#"PRIx64"\n",
+ sample->cpu, event->itrace_start.pid,
+ event->itrace_start.tid, sample->time,
+ perf_time_to_tsc(sample->time, &pt->tc));
+
+ return machine__set_current_tid(pt->machine, sample->cpu,
+ event->itrace_start.pid,
+ event->itrace_start.tid);
+}
+
+static int intel_pt_process_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+ u64 timestamp;
+ int err = 0;
+
+ if (dump_trace)
+ return 0;
+
+ if (!tool->ordered_events) {
+ pr_err("Intel Processor Trace requires ordered events\n");
+ return -EINVAL;
+ }
+
+ if (sample->time && sample->time != (u64)-1)
+ timestamp = perf_time_to_tsc(sample->time, &pt->tc);
+ else
+ timestamp = 0;
+
+ if (timestamp || pt->timeless_decoding) {
+ err = intel_pt_update_queues(pt);
+ if (err)
+ return err;
+ }
+
+ if (pt->timeless_decoding) {
+ if (event->header.type == PERF_RECORD_EXIT) {
+ err = intel_pt_process_timeless_queues(pt,
+ event->comm.tid,
+ sample->time);
+ }
+ } else if (timestamp) {
+ err = intel_pt_process_queues(pt, timestamp);
+ }
+ if (err)
+ return err;
+
+ if (event->header.type == PERF_RECORD_AUX &&
+ (event->aux.flags & PERF_AUX_FLAG_TRUNCATED) &&
+ pt->synth_opts.errors) {
+ err = intel_pt_lost(pt, sample);
+ if (err)
+ return err;
+ }
+
+ if (pt->switch_evsel && event->header.type == PERF_RECORD_SAMPLE)
+ err = intel_pt_process_switch(pt, sample);
+ else if (event->header.type == PERF_RECORD_ITRACE_START)
+ err = intel_pt_process_itrace_start(pt, event, sample);
+
+ intel_pt_log("event %s (%u): cpu %d time %"PRIu64" tsc %#"PRIx64"\n",
+ perf_event__name(event->header.type), event->header.type,
+ sample->cpu, sample->time, timestamp);
+
+ return err;
+}
+
+static int intel_pt_flush(struct perf_session *session, struct perf_tool *tool)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+ int ret;
+
+ if (dump_trace)
+ return 0;
+
+ if (!tool->ordered_events)
+ return -EINVAL;
+
+ ret = intel_pt_update_queues(pt);
+ if (ret < 0)
+ return ret;
+
+ if (pt->timeless_decoding)
+ return intel_pt_process_timeless_queues(pt, -1,
+ MAX_TIMESTAMP - 1);
+
+ return intel_pt_process_queues(pt, MAX_TIMESTAMP);
+}
+
+static void intel_pt_free_events(struct perf_session *session)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+ struct auxtrace_queues *queues = &pt->queues;
+ unsigned int i;
+
+ for (i = 0; i < queues->nr_queues; i++) {
+ intel_pt_free_queue(queues->queue_array[i].priv);
+ queues->queue_array[i].priv = NULL;
+ }
+ intel_pt_log_disable();
+ auxtrace_queues__free(queues);
+}
+
+static void intel_pt_free(struct perf_session *session)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+
+ auxtrace_heap__free(&pt->heap);
+ intel_pt_free_events(session);
+ session->auxtrace = NULL;
+ thread__delete(pt->unknown_thread);
+ free(pt);
+}
+
+static int intel_pt_process_auxtrace_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_tool *tool __maybe_unused)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+
+ if (pt->sampling_mode)
+ return 0;
+
+ if (!pt->data_queued) {
+ struct auxtrace_buffer *buffer;
+ off_t data_offset;
+ int fd = perf_data_file__fd(session->file);
+ int err;
+
+ if (perf_data_file__is_pipe(session->file)) {
+ data_offset = 0;
+ } else {
+ data_offset = lseek(fd, 0, SEEK_CUR);
+ if (data_offset == -1)
+ return -errno;
+ }
+
+ err = auxtrace_queues__add_event(&pt->queues, session, event,
+ data_offset, &buffer);
+ if (err)
+ return err;
+
+ /* Dump here now we have copied a piped trace out of the pipe */
+ if (dump_trace) {
+ if (auxtrace_buffer__get_data(buffer, fd)) {
+ intel_pt_dump_event(pt, buffer->data,
+ buffer->size);
+ auxtrace_buffer__put_data(buffer);
+ }
+ }
+ }
+
+ return 0;
+}
+
+struct intel_pt_synth {
+ struct perf_tool dummy_tool;
+ struct perf_session *session;
+};
+
+static int intel_pt_event_synth(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct intel_pt_synth *intel_pt_synth =
+ container_of(tool, struct intel_pt_synth, dummy_tool);
+
+ return perf_session__deliver_synth_event(intel_pt_synth->session, event,
+ NULL);
+}
+
+static int intel_pt_synth_event(struct perf_session *session,
+ struct perf_event_attr *attr, u64 id)
+{
+ struct intel_pt_synth intel_pt_synth;
+
+ memset(&intel_pt_synth, 0, sizeof(struct intel_pt_synth));
+ intel_pt_synth.session = session;
+
+ return perf_event__synthesize_attr(&intel_pt_synth.dummy_tool, attr, 1,
+ &id, intel_pt_event_synth);
+}
+
+static int intel_pt_synth_events(struct intel_pt *pt,
+ struct perf_session *session)
+{
+ struct perf_evlist *evlist = session->evlist;
+ struct perf_evsel *evsel;
+ struct perf_event_attr attr;
+ bool found = false;
+ u64 id;
+ int err;
+
+ evlist__for_each(evlist, evsel) {
+ if (evsel->attr.type == pt->pmu_type && evsel->ids) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ pr_debug("There are no selected events with Intel Processor Trace data\n");
+ return 0;
+ }
+
+ memset(&attr, 0, sizeof(struct perf_event_attr));
+ attr.size = sizeof(struct perf_event_attr);
+ attr.type = PERF_TYPE_HARDWARE;
+ attr.sample_type = evsel->attr.sample_type & PERF_SAMPLE_MASK;
+ attr.sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID |
+ PERF_SAMPLE_PERIOD;
+ if (pt->timeless_decoding)
+ attr.sample_type &= ~(u64)PERF_SAMPLE_TIME;
+ else
+ attr.sample_type |= PERF_SAMPLE_TIME;
+ if (!pt->per_cpu_mmaps)
+ attr.sample_type &= ~(u64)PERF_SAMPLE_CPU;
+ attr.exclude_user = evsel->attr.exclude_user;
+ attr.exclude_kernel = evsel->attr.exclude_kernel;
+ attr.exclude_hv = evsel->attr.exclude_hv;
+ attr.exclude_host = evsel->attr.exclude_host;
+ attr.exclude_guest = evsel->attr.exclude_guest;
+ attr.sample_id_all = evsel->attr.sample_id_all;
+ attr.read_format = evsel->attr.read_format;
+
+ id = evsel->id[0] + 1000000000;
+ if (!id)
+ id = 1;
+
+ if (pt->synth_opts.instructions) {
+ attr.config = PERF_COUNT_HW_INSTRUCTIONS;
+ if (pt->synth_opts.period_type == PERF_ITRACE_PERIOD_NANOSECS)
+ attr.sample_period =
+ intel_pt_ns_to_ticks(pt, pt->synth_opts.period);
+ else
+ attr.sample_period = pt->synth_opts.period;
+ pt->instructions_sample_period = attr.sample_period;
+ if (pt->synth_opts.callchain)
+ attr.sample_type |= PERF_SAMPLE_CALLCHAIN;
+ pr_debug("Synthesizing 'instructions' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
+ id, (u64)attr.sample_type);
+ err = intel_pt_synth_event(session, &attr, id);
+ if (err) {
+ pr_err("%s: failed to synthesize 'instructions' event type\n",
+ __func__);
+ return err;
+ }
+ pt->sample_instructions = true;
+ pt->instructions_sample_type = attr.sample_type;
+ pt->instructions_id = id;
+ id += 1;
+ }
+
+ if (pt->synth_opts.transactions) {
+ attr.config = PERF_COUNT_HW_INSTRUCTIONS;
+ attr.sample_period = 1;
+ if (pt->synth_opts.callchain)
+ attr.sample_type |= PERF_SAMPLE_CALLCHAIN;
+ pr_debug("Synthesizing 'transactions' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
+ id, (u64)attr.sample_type);
+ err = intel_pt_synth_event(session, &attr, id);
+ if (err) {
+ pr_err("%s: failed to synthesize 'transactions' event type\n",
+ __func__);
+ return err;
+ }
+ pt->sample_transactions = true;
+ pt->transactions_id = id;
+ id += 1;
+ evlist__for_each(evlist, evsel) {
+ if (evsel->id && evsel->id[0] == pt->transactions_id) {
+ if (evsel->name)
+ zfree(&evsel->name);
+ evsel->name = strdup("transactions");
+ break;
+ }
+ }
+ }
+
+ if (pt->synth_opts.branches) {
+ attr.config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS;
+ attr.sample_period = 1;
+ attr.sample_type |= PERF_SAMPLE_ADDR;
+ attr.sample_type &= ~(u64)PERF_SAMPLE_CALLCHAIN;
+ pr_debug("Synthesizing 'branches' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
+ id, (u64)attr.sample_type);
+ err = intel_pt_synth_event(session, &attr, id);
+ if (err) {
+ pr_err("%s: failed to synthesize 'branches' event type\n",
+ __func__);
+ return err;
+ }
+ pt->sample_branches = true;
+ pt->branches_sample_type = attr.sample_type;
+ pt->branches_id = id;
+ }
+
+ pt->synth_needs_swap = evsel->needs_swap;
+
+ return 0;
+}
+
+static struct perf_evsel *intel_pt_find_sched_switch(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each_reverse(evlist, evsel) {
+ const char *name = perf_evsel__name(evsel);
+
+ if (!strcmp(name, "sched:sched_switch"))
+ return evsel;
+ }
+
+ return NULL;
+}
+
+static const char * const intel_pt_info_fmts[] = {
+ [INTEL_PT_PMU_TYPE] = " PMU Type %"PRId64"\n",
+ [INTEL_PT_TIME_SHIFT] = " Time Shift %"PRIu64"\n",
+ [INTEL_PT_TIME_MULT] = " Time Muliplier %"PRIu64"\n",
+ [INTEL_PT_TIME_ZERO] = " Time Zero %"PRIu64"\n",
+ [INTEL_PT_CAP_USER_TIME_ZERO] = " Cap Time Zero %"PRId64"\n",
+ [INTEL_PT_TSC_BIT] = " TSC bit %#"PRIx64"\n",
+ [INTEL_PT_NORETCOMP_BIT] = " NoRETComp bit %#"PRIx64"\n",
+ [INTEL_PT_HAVE_SCHED_SWITCH] = " Have sched_switch %"PRId64"\n",
+ [INTEL_PT_SNAPSHOT_MODE] = " Snapshot mode %"PRId64"\n",
+ [INTEL_PT_PER_CPU_MMAPS] = " Per-cpu maps %"PRId64"\n",
+ [INTEL_PT_MTC_BIT] = " MTC bit %#"PRIx64"\n",
+ [INTEL_PT_TSC_CTC_N] = " TSC:CTC numerator %"PRIu64"\n",
+ [INTEL_PT_TSC_CTC_D] = " TSC:CTC denominator %"PRIu64"\n",
+ [INTEL_PT_CYC_BIT] = " CYC bit %#"PRIx64"\n",
+};
+
+static void intel_pt_print_info(u64 *arr, int start, int finish)
+{
+ int i;
+
+ if (!dump_trace)
+ return;
+
+ for (i = start; i <= finish; i++)
+ fprintf(stdout, intel_pt_info_fmts[i], arr[i]);
+}
+
+int intel_pt_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session)
+{
+ struct auxtrace_info_event *auxtrace_info = &event->auxtrace_info;
+ size_t min_sz = sizeof(u64) * INTEL_PT_PER_CPU_MMAPS;
+ struct intel_pt *pt;
+ int err;
+
+ if (auxtrace_info->header.size < sizeof(struct auxtrace_info_event) +
+ min_sz)
+ return -EINVAL;
+
+ pt = zalloc(sizeof(struct intel_pt));
+ if (!pt)
+ return -ENOMEM;
+
+ err = auxtrace_queues__init(&pt->queues);
+ if (err)
+ goto err_free;
+
+ intel_pt_log_set_name(INTEL_PT_PMU_NAME);
+
+ pt->session = session;
+ pt->machine = &session->machines.host; /* No kvm support */
+ pt->auxtrace_type = auxtrace_info->type;
+ pt->pmu_type = auxtrace_info->priv[INTEL_PT_PMU_TYPE];
+ pt->tc.time_shift = auxtrace_info->priv[INTEL_PT_TIME_SHIFT];
+ pt->tc.time_mult = auxtrace_info->priv[INTEL_PT_TIME_MULT];
+ pt->tc.time_zero = auxtrace_info->priv[INTEL_PT_TIME_ZERO];
+ pt->cap_user_time_zero = auxtrace_info->priv[INTEL_PT_CAP_USER_TIME_ZERO];
+ pt->tsc_bit = auxtrace_info->priv[INTEL_PT_TSC_BIT];
+ pt->noretcomp_bit = auxtrace_info->priv[INTEL_PT_NORETCOMP_BIT];
+ pt->have_sched_switch = auxtrace_info->priv[INTEL_PT_HAVE_SCHED_SWITCH];
+ pt->snapshot_mode = auxtrace_info->priv[INTEL_PT_SNAPSHOT_MODE];
+ pt->per_cpu_mmaps = auxtrace_info->priv[INTEL_PT_PER_CPU_MMAPS];
+ intel_pt_print_info(&auxtrace_info->priv[0], INTEL_PT_PMU_TYPE,
+ INTEL_PT_PER_CPU_MMAPS);
+
+ if (auxtrace_info->header.size >= sizeof(struct auxtrace_info_event) +
+ (sizeof(u64) * INTEL_PT_CYC_BIT)) {
+ pt->mtc_bit = auxtrace_info->priv[INTEL_PT_MTC_BIT];
+ pt->mtc_freq_bits = auxtrace_info->priv[INTEL_PT_MTC_FREQ_BITS];
+ pt->tsc_ctc_ratio_n = auxtrace_info->priv[INTEL_PT_TSC_CTC_N];
+ pt->tsc_ctc_ratio_d = auxtrace_info->priv[INTEL_PT_TSC_CTC_D];
+ pt->cyc_bit = auxtrace_info->priv[INTEL_PT_CYC_BIT];
+ intel_pt_print_info(&auxtrace_info->priv[0], INTEL_PT_MTC_BIT,
+ INTEL_PT_CYC_BIT);
+ }
+
+ pt->timeless_decoding = intel_pt_timeless_decoding(pt);
+ pt->have_tsc = intel_pt_have_tsc(pt);
+ pt->sampling_mode = false;
+ pt->est_tsc = !pt->timeless_decoding;
+
+ pt->unknown_thread = thread__new(999999999, 999999999);
+ if (!pt->unknown_thread) {
+ err = -ENOMEM;
+ goto err_free_queues;
+ }
+ err = thread__set_comm(pt->unknown_thread, "unknown", 0);
+ if (err)
+ goto err_delete_thread;
+ if (thread__init_map_groups(pt->unknown_thread, pt->machine)) {
+ err = -ENOMEM;
+ goto err_delete_thread;
+ }
+
+ pt->auxtrace.process_event = intel_pt_process_event;
+ pt->auxtrace.process_auxtrace_event = intel_pt_process_auxtrace_event;
+ pt->auxtrace.flush_events = intel_pt_flush;
+ pt->auxtrace.free_events = intel_pt_free_events;
+ pt->auxtrace.free = intel_pt_free;
+ session->auxtrace = &pt->auxtrace;
+
+ if (dump_trace)
+ return 0;
+
+ if (pt->have_sched_switch == 1) {
+ pt->switch_evsel = intel_pt_find_sched_switch(session->evlist);
+ if (!pt->switch_evsel) {
+ pr_err("%s: missing sched_switch event\n", __func__);
+ goto err_delete_thread;
+ }
+ }
+
+ if (session->itrace_synth_opts && session->itrace_synth_opts->set) {
+ pt->synth_opts = *session->itrace_synth_opts;
+ } else {
+ itrace_synth_opts__set_default(&pt->synth_opts);
+ if (use_browser != -1) {
+ pt->synth_opts.branches = false;
+ pt->synth_opts.callchain = true;
+ }
+ }
+
+ if (pt->synth_opts.log)
+ intel_pt_log_enable();
+
+ /* Maximum non-turbo ratio is TSC freq / 100 MHz */
+ if (pt->tc.time_mult) {
+ u64 tsc_freq = intel_pt_ns_to_ticks(pt, 1000000000);
+
+ pt->max_non_turbo_ratio = (tsc_freq + 50000000) / 100000000;
+ intel_pt_log("TSC frequency %"PRIu64"\n", tsc_freq);
+ intel_pt_log("Maximum non-turbo ratio %u\n",
+ pt->max_non_turbo_ratio);
+ }
+
+ if (pt->synth_opts.calls)
+ pt->branches_filter |= PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_TRACE_END;
+ if (pt->synth_opts.returns)
+ pt->branches_filter |= PERF_IP_FLAG_RETURN |
+ PERF_IP_FLAG_TRACE_BEGIN;
+
+ if (pt->synth_opts.callchain && !symbol_conf.use_callchain) {
+ symbol_conf.use_callchain = true;
+ if (callchain_register_param(&callchain_param) < 0) {
+ symbol_conf.use_callchain = false;
+ pt->synth_opts.callchain = false;
+ }
+ }
+
+ err = intel_pt_synth_events(pt, session);
+ if (err)
+ goto err_delete_thread;
+
+ err = auxtrace_queues__process_index(&pt->queues, session);
+ if (err)
+ goto err_delete_thread;
+
+ if (pt->queues.populated)
+ pt->data_queued = true;
+
+ if (pt->timeless_decoding)
+ pr_debug2("Intel PT decoding without timestamps\n");
+
+ return 0;
+
+err_delete_thread:
+ thread__delete(pt->unknown_thread);
+err_free_queues:
+ intel_pt_log_disable();
+ auxtrace_queues__free(&pt->queues);
+ session->auxtrace = NULL;
+err_free:
+ free(pt);
+ return err;
+}
diff --git a/tools/perf/util/intel-pt.h b/tools/perf/util/intel-pt.h
new file mode 100644
index 000000000000..0065949df693
--- /dev/null
+++ b/tools/perf/util/intel-pt.h
@@ -0,0 +1,56 @@
+/*
+ * intel_pt.h: Intel Processor Trace support
+ * Copyright (c) 2013-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__PERF_INTEL_PT_H__
+#define INCLUDE__PERF_INTEL_PT_H__
+
+#define INTEL_PT_PMU_NAME "intel_pt"
+
+enum {
+ INTEL_PT_PMU_TYPE,
+ INTEL_PT_TIME_SHIFT,
+ INTEL_PT_TIME_MULT,
+ INTEL_PT_TIME_ZERO,
+ INTEL_PT_CAP_USER_TIME_ZERO,
+ INTEL_PT_TSC_BIT,
+ INTEL_PT_NORETCOMP_BIT,
+ INTEL_PT_HAVE_SCHED_SWITCH,
+ INTEL_PT_SNAPSHOT_MODE,
+ INTEL_PT_PER_CPU_MMAPS,
+ INTEL_PT_MTC_BIT,
+ INTEL_PT_MTC_FREQ_BITS,
+ INTEL_PT_TSC_CTC_N,
+ INTEL_PT_TSC_CTC_D,
+ INTEL_PT_CYC_BIT,
+ INTEL_PT_AUXTRACE_PRIV_MAX,
+};
+
+#define INTEL_PT_AUXTRACE_PRIV_SIZE (INTEL_PT_AUXTRACE_PRIV_MAX * sizeof(u64))
+
+struct auxtrace_record;
+struct perf_tool;
+union perf_event;
+struct perf_session;
+struct perf_event_attr;
+struct perf_pmu;
+
+struct auxtrace_record *intel_pt_recording_init(int *err);
+
+int intel_pt_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session);
+
+struct perf_event_attr *intel_pt_pmu_default_config(struct perf_pmu *pmu);
+
+#endif
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
new file mode 100644
index 000000000000..4f6a4780bd5f
--- /dev/null
+++ b/tools/perf/util/llvm-utils.c
@@ -0,0 +1,408 @@
+/*
+ * Copyright (C) 2015, Wang Nan <wangnan0@huawei.com>
+ * Copyright (C) 2015, Huawei Inc.
+ */
+
+#include <stdio.h>
+#include <sys/utsname.h>
+#include "util.h"
+#include "debug.h"
+#include "llvm-utils.h"
+#include "cache.h"
+
+#define CLANG_BPF_CMD_DEFAULT_TEMPLATE \
+ "$CLANG_EXEC -D__KERNEL__ $CLANG_OPTIONS " \
+ "$KERNEL_INC_OPTIONS -Wno-unused-value " \
+ "-Wno-pointer-sign -working-directory " \
+ "$WORKING_DIR -c \"$CLANG_SOURCE\" -target bpf -O2 -o -"
+
+struct llvm_param llvm_param = {
+ .clang_path = "clang",
+ .clang_bpf_cmd_template = CLANG_BPF_CMD_DEFAULT_TEMPLATE,
+ .clang_opt = NULL,
+ .kbuild_dir = NULL,
+ .kbuild_opts = NULL,
+ .user_set_param = false,
+};
+
+int perf_llvm_config(const char *var, const char *value)
+{
+ if (prefixcmp(var, "llvm."))
+ return 0;
+ var += sizeof("llvm.") - 1;
+
+ if (!strcmp(var, "clang-path"))
+ llvm_param.clang_path = strdup(value);
+ else if (!strcmp(var, "clang-bpf-cmd-template"))
+ llvm_param.clang_bpf_cmd_template = strdup(value);
+ else if (!strcmp(var, "clang-opt"))
+ llvm_param.clang_opt = strdup(value);
+ else if (!strcmp(var, "kbuild-dir"))
+ llvm_param.kbuild_dir = strdup(value);
+ else if (!strcmp(var, "kbuild-opts"))
+ llvm_param.kbuild_opts = strdup(value);
+ else
+ return -1;
+ llvm_param.user_set_param = true;
+ return 0;
+}
+
+static int
+search_program(const char *def, const char *name,
+ char *output)
+{
+ char *env, *path, *tmp = NULL;
+ char buf[PATH_MAX];
+ int ret;
+
+ output[0] = '\0';
+ if (def && def[0] != '\0') {
+ if (def[0] == '/') {
+ if (access(def, F_OK) == 0) {
+ strlcpy(output, def, PATH_MAX);
+ return 0;
+ }
+ } else if (def[0] != '\0')
+ name = def;
+ }
+
+ env = getenv("PATH");
+ if (!env)
+ return -1;
+ env = strdup(env);
+ if (!env)
+ return -1;
+
+ ret = -ENOENT;
+ path = strtok_r(env, ":", &tmp);
+ while (path) {
+ scnprintf(buf, sizeof(buf), "%s/%s", path, name);
+ if (access(buf, F_OK) == 0) {
+ strlcpy(output, buf, PATH_MAX);
+ ret = 0;
+ break;
+ }
+ path = strtok_r(NULL, ":", &tmp);
+ }
+
+ free(env);
+ return ret;
+}
+
+#define READ_SIZE 4096
+static int
+read_from_pipe(const char *cmd, void **p_buf, size_t *p_read_sz)
+{
+ int err = 0;
+ void *buf = NULL;
+ FILE *file = NULL;
+ size_t read_sz = 0, buf_sz = 0;
+
+ file = popen(cmd, "r");
+ if (!file) {
+ pr_err("ERROR: unable to popen cmd: %s\n",
+ strerror(errno));
+ return -EINVAL;
+ }
+
+ while (!feof(file) && !ferror(file)) {
+ /*
+ * Make buf_sz always have obe byte extra space so we
+ * can put '\0' there.
+ */
+ if (buf_sz - read_sz < READ_SIZE + 1) {
+ void *new_buf;
+
+ buf_sz = read_sz + READ_SIZE + 1;
+ new_buf = realloc(buf, buf_sz);
+
+ if (!new_buf) {
+ pr_err("ERROR: failed to realloc memory\n");
+ err = -ENOMEM;
+ goto errout;
+ }
+
+ buf = new_buf;
+ }
+ read_sz += fread(buf + read_sz, 1, READ_SIZE, file);
+ }
+
+ if (buf_sz - read_sz < 1) {
+ pr_err("ERROR: internal error\n");
+ err = -EINVAL;
+ goto errout;
+ }
+
+ if (ferror(file)) {
+ pr_err("ERROR: error occurred when reading from pipe: %s\n",
+ strerror(errno));
+ err = -EIO;
+ goto errout;
+ }
+
+ err = WEXITSTATUS(pclose(file));
+ file = NULL;
+ if (err) {
+ err = -EINVAL;
+ goto errout;
+ }
+
+ /*
+ * If buf is string, give it terminal '\0' to make our life
+ * easier. If buf is not string, that '\0' is out of space
+ * indicated by read_sz so caller won't even notice it.
+ */
+ ((char *)buf)[read_sz] = '\0';
+
+ if (!p_buf)
+ free(buf);
+ else
+ *p_buf = buf;
+
+ if (p_read_sz)
+ *p_read_sz = read_sz;
+ return 0;
+
+errout:
+ if (file)
+ pclose(file);
+ free(buf);
+ if (p_buf)
+ *p_buf = NULL;
+ if (p_read_sz)
+ *p_read_sz = 0;
+ return err;
+}
+
+static inline void
+force_set_env(const char *var, const char *value)
+{
+ if (value) {
+ setenv(var, value, 1);
+ pr_debug("set env: %s=%s\n", var, value);
+ } else {
+ unsetenv(var);
+ pr_debug("unset env: %s\n", var);
+ }
+}
+
+static void
+version_notice(void)
+{
+ pr_err(
+" \tLLVM 3.7 or newer is required. Which can be found from http://llvm.org\n"
+" \tYou may want to try git trunk:\n"
+" \t\tgit clone http://llvm.org/git/llvm.git\n"
+" \t\t and\n"
+" \t\tgit clone http://llvm.org/git/clang.git\n\n"
+" \tOr fetch the latest clang/llvm 3.7 from pre-built llvm packages for\n"
+" \tdebian/ubuntu:\n"
+" \t\thttp://llvm.org/apt\n\n"
+" \tIf you are using old version of clang, change 'clang-bpf-cmd-template'\n"
+" \toption in [llvm] section of ~/.perfconfig to:\n\n"
+" \t \"$CLANG_EXEC $CLANG_OPTIONS $KERNEL_INC_OPTIONS \\\n"
+" \t -working-directory $WORKING_DIR -c $CLANG_SOURCE \\\n"
+" \t -emit-llvm -o - | /path/to/llc -march=bpf -filetype=obj -o -\"\n"
+" \t(Replace /path/to/llc with path to your llc)\n\n"
+);
+}
+
+static int detect_kbuild_dir(char **kbuild_dir)
+{
+ const char *test_dir = llvm_param.kbuild_dir;
+ const char *prefix_dir = "";
+ const char *suffix_dir = "";
+
+ char *autoconf_path;
+ struct utsname utsname;
+
+ int err;
+
+ if (!test_dir) {
+ err = uname(&utsname);
+ if (err) {
+ pr_warning("uname failed: %s\n", strerror(errno));
+ return -EINVAL;
+ }
+
+ test_dir = utsname.release;
+ prefix_dir = "/lib/modules/";
+ suffix_dir = "/build";
+ }
+
+ err = asprintf(&autoconf_path, "%s%s%s/include/generated/autoconf.h",
+ prefix_dir, test_dir, suffix_dir);
+ if (err < 0)
+ return -ENOMEM;
+
+ if (access(autoconf_path, R_OK) == 0) {
+ free(autoconf_path);
+
+ err = asprintf(kbuild_dir, "%s%s%s", prefix_dir, test_dir,
+ suffix_dir);
+ if (err < 0)
+ return -ENOMEM;
+ return 0;
+ }
+ free(autoconf_path);
+ return -ENOENT;
+}
+
+static const char *kinc_fetch_script =
+"#!/usr/bin/env sh\n"
+"if ! test -d \"$KBUILD_DIR\"\n"
+"then\n"
+" exit -1\n"
+"fi\n"
+"if ! test -f \"$KBUILD_DIR/include/generated/autoconf.h\"\n"
+"then\n"
+" exit -1\n"
+"fi\n"
+"TMPDIR=`mktemp -d`\n"
+"if test -z \"$TMPDIR\"\n"
+"then\n"
+" exit -1\n"
+"fi\n"
+"cat << EOF > $TMPDIR/Makefile\n"
+"obj-y := dummy.o\n"
+"\\$(obj)/%.o: \\$(src)/%.c\n"
+"\t@echo -n \"\\$(NOSTDINC_FLAGS) \\$(LINUXINCLUDE) \\$(EXTRA_CFLAGS)\"\n"
+"EOF\n"
+"touch $TMPDIR/dummy.c\n"
+"make -s -C $KBUILD_DIR M=$TMPDIR $KBUILD_OPTS dummy.o 2>/dev/null\n"
+"RET=$?\n"
+"rm -rf $TMPDIR\n"
+"exit $RET\n";
+
+static inline void
+get_kbuild_opts(char **kbuild_dir, char **kbuild_include_opts)
+{
+ int err;
+
+ if (!kbuild_dir || !kbuild_include_opts)
+ return;
+
+ *kbuild_dir = NULL;
+ *kbuild_include_opts = NULL;
+
+ if (llvm_param.kbuild_dir && !llvm_param.kbuild_dir[0]) {
+ pr_debug("[llvm.kbuild-dir] is set to \"\" deliberately.\n");
+ pr_debug("Skip kbuild options detection.\n");
+ return;
+ }
+
+ err = detect_kbuild_dir(kbuild_dir);
+ if (err) {
+ pr_warning(
+"WARNING:\tunable to get correct kernel building directory.\n"
+"Hint:\tSet correct kbuild directory using 'kbuild-dir' option in [llvm]\n"
+" \tsection of ~/.perfconfig or set it to \"\" to suppress kbuild\n"
+" \tdetection.\n\n");
+ return;
+ }
+
+ pr_debug("Kernel build dir is set to %s\n", *kbuild_dir);
+ force_set_env("KBUILD_DIR", *kbuild_dir);
+ force_set_env("KBUILD_OPTS", llvm_param.kbuild_opts);
+ err = read_from_pipe(kinc_fetch_script,
+ (void **)kbuild_include_opts,
+ NULL);
+ if (err) {
+ pr_warning(
+"WARNING:\tunable to get kernel include directories from '%s'\n"
+"Hint:\tTry set clang include options using 'clang-bpf-cmd-template'\n"
+" \toption in [llvm] section of ~/.perfconfig and set 'kbuild-dir'\n"
+" \toption in [llvm] to \"\" to suppress this detection.\n\n",
+ *kbuild_dir);
+
+ free(*kbuild_dir);
+ *kbuild_dir = NULL;
+ return;
+ }
+
+ pr_debug("include option is set to %s\n", *kbuild_include_opts);
+}
+
+int llvm__compile_bpf(const char *path, void **p_obj_buf,
+ size_t *p_obj_buf_sz)
+{
+ int err;
+ char clang_path[PATH_MAX];
+ const char *clang_opt = llvm_param.clang_opt;
+ const char *template = llvm_param.clang_bpf_cmd_template;
+ char *kbuild_dir = NULL, *kbuild_include_opts = NULL;
+ void *obj_buf = NULL;
+ size_t obj_buf_sz;
+
+ if (!template)
+ template = CLANG_BPF_CMD_DEFAULT_TEMPLATE;
+
+ err = search_program(llvm_param.clang_path,
+ "clang", clang_path);
+ if (err) {
+ pr_err(
+"ERROR:\tunable to find clang.\n"
+"Hint:\tTry to install latest clang/llvm to support BPF. Check your $PATH\n"
+" \tand 'clang-path' option in [llvm] section of ~/.perfconfig.\n");
+ version_notice();
+ return -ENOENT;
+ }
+
+ /*
+ * This is an optional work. Even it fail we can continue our
+ * work. Needn't to check error return.
+ */
+ get_kbuild_opts(&kbuild_dir, &kbuild_include_opts);
+
+ force_set_env("CLANG_EXEC", clang_path);
+ force_set_env("CLANG_OPTIONS", clang_opt);
+ force_set_env("KERNEL_INC_OPTIONS", kbuild_include_opts);
+ force_set_env("WORKING_DIR", kbuild_dir ? : ".");
+
+ /*
+ * Since we may reset clang's working dir, path of source file
+ * should be transferred into absolute path, except we want
+ * stdin to be source file (testing).
+ */
+ force_set_env("CLANG_SOURCE",
+ (path[0] == '-') ? path :
+ make_nonrelative_path(path));
+
+ pr_debug("llvm compiling command template: %s\n", template);
+ err = read_from_pipe(template, &obj_buf, &obj_buf_sz);
+ if (err) {
+ pr_err("ERROR:\tunable to compile %s\n", path);
+ pr_err("Hint:\tCheck error message shown above.\n");
+ pr_err("Hint:\tYou can also pre-compile it into .o using:\n");
+ pr_err(" \t\tclang -target bpf -O2 -c %s\n", path);
+ pr_err(" \twith proper -I and -D options.\n");
+ goto errout;
+ }
+
+ free(kbuild_dir);
+ free(kbuild_include_opts);
+ if (!p_obj_buf)
+ free(obj_buf);
+ else
+ *p_obj_buf = obj_buf;
+
+ if (p_obj_buf_sz)
+ *p_obj_buf_sz = obj_buf_sz;
+ return 0;
+errout:
+ free(kbuild_dir);
+ free(kbuild_include_opts);
+ free(obj_buf);
+ if (p_obj_buf)
+ *p_obj_buf = NULL;
+ if (p_obj_buf_sz)
+ *p_obj_buf_sz = 0;
+ return err;
+}
+
+int llvm__search_clang(void)
+{
+ char clang_path[PATH_MAX];
+
+ return search_program(llvm_param.clang_path, "clang", clang_path);
+}
diff --git a/tools/perf/util/llvm-utils.h b/tools/perf/util/llvm-utils.h
new file mode 100644
index 000000000000..5b3cf1c229e2
--- /dev/null
+++ b/tools/perf/util/llvm-utils.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2015, Wang Nan <wangnan0@huawei.com>
+ * Copyright (C) 2015, Huawei Inc.
+ */
+#ifndef __LLVM_UTILS_H
+#define __LLVM_UTILS_H
+
+#include "debug.h"
+
+struct llvm_param {
+ /* Path of clang executable */
+ const char *clang_path;
+ /*
+ * Template of clang bpf compiling. 5 env variables
+ * can be used:
+ * $CLANG_EXEC: Path to clang.
+ * $CLANG_OPTIONS: Extra options to clang.
+ * $KERNEL_INC_OPTIONS: Kernel include directories.
+ * $WORKING_DIR: Kernel source directory.
+ * $CLANG_SOURCE: Source file to be compiled.
+ */
+ const char *clang_bpf_cmd_template;
+ /* Will be filled in $CLANG_OPTIONS */
+ const char *clang_opt;
+ /* Where to find kbuild system */
+ const char *kbuild_dir;
+ /*
+ * Arguments passed to make, like 'ARCH=arm' if doing cross
+ * compiling. Should not be used for dynamic compiling.
+ */
+ const char *kbuild_opts;
+ /*
+ * Default is false. If one of the above fields is set by user
+ * explicitly then user_set_llvm is set to true. This is used
+ * for perf test. If user doesn't set anything in .perfconfig
+ * and clang is not found, don't trigger llvm test.
+ */
+ bool user_set_param;
+};
+
+extern struct llvm_param llvm_param;
+extern int perf_llvm_config(const char *var, const char *value);
+
+extern int llvm__compile_bpf(const char *path, void **p_obj_buf,
+ size_t *p_obj_buf_sz);
+
+/* This function is for test__llvm() use only */
+extern int llvm__search_clang(void);
+#endif
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 7ff682770fdb..6309f7ceb08f 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -250,7 +250,7 @@ struct machine *machines__findnew(struct machines *machines, pid_t pid)
static struct strlist *seen;
if (!seen)
- seen = strlist__new(true, NULL);
+ seen = strlist__new(NULL, NULL);
if (!strlist__has_entry(seen, path)) {
pr_err("Can't access file %s\n", path);
@@ -550,6 +550,14 @@ int machine__process_itrace_start_event(struct machine *machine __maybe_unused,
return 0;
}
+int machine__process_switch_event(struct machine *machine __maybe_unused,
+ union perf_event *event)
+{
+ if (dump_trace)
+ perf_event__fprintf_switch(event, stdout);
+ return 0;
+}
+
struct map *machine__findnew_module_map(struct machine *machine, u64 start,
const char *filename)
{
@@ -1387,6 +1395,24 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
event->fork.ptid);
int err = 0;
+ if (dump_trace)
+ perf_event__fprintf_task(event, stdout);
+
+ /*
+ * There may be an existing thread that is not actually the parent,
+ * either because we are processing events out of order, or because the
+ * (fork) event that would have removed the thread was lost. Assume the
+ * latter case and continue on as best we can.
+ */
+ if (parent->pid_ != (pid_t)event->fork.ppid) {
+ dump_printf("removing erroneous parent thread %d/%d\n",
+ parent->pid_, parent->tid);
+ machine__remove_thread(machine, parent);
+ thread__put(parent);
+ parent = machine__findnew_thread(machine, event->fork.ppid,
+ event->fork.ptid);
+ }
+
/* if a thread currently exists for the thread id remove it */
if (thread != NULL) {
machine__remove_thread(machine, thread);
@@ -1395,8 +1421,6 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
thread = machine__findnew_thread(machine, event->fork.pid,
event->fork.tid);
- if (dump_trace)
- perf_event__fprintf_task(event, stdout);
if (thread == NULL || parent == NULL ||
thread__fork(thread, parent, sample->time) < 0) {
@@ -1451,6 +1475,9 @@ int machine__process_event(struct machine *machine, union perf_event *event,
ret = machine__process_itrace_start_event(machine, event); break;
case PERF_RECORD_LOST_SAMPLES:
ret = machine__process_lost_samples_event(machine, event, sample); break;
+ case PERF_RECORD_SWITCH:
+ case PERF_RECORD_SWITCH_CPU_WIDE:
+ ret = machine__process_switch_event(machine, event); break;
default:
ret = -1;
break;
@@ -1993,3 +2020,17 @@ struct dso *machine__findnew_dso(struct machine *machine, const char *filename)
{
return dsos__findnew(&machine->dsos, filename);
}
+
+char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp)
+{
+ struct machine *machine = vmachine;
+ struct map *map;
+ struct symbol *sym = map_groups__find_symbol(&machine->kmaps, MAP__FUNCTION, *addrp, &map, NULL);
+
+ if (sym == NULL)
+ return NULL;
+
+ *modp = __map__is_kmodule(map) ? (char *)map->dso->short_name : NULL;
+ *addrp = map->unmap_ip(map, sym->start);
+ return sym->name;
+}
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 887798e511e9..ea5cb4a621db 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -87,6 +87,8 @@ int machine__process_aux_event(struct machine *machine,
union perf_event *event);
int machine__process_itrace_start_event(struct machine *machine,
union perf_event *event);
+int machine__process_switch_event(struct machine *machine __maybe_unused,
+ union perf_event *event);
int machine__process_mmap_event(struct machine *machine, union perf_event *event,
struct perf_sample *sample);
int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
@@ -237,5 +239,9 @@ int machine__synthesize_threads(struct machine *machine, struct target *target,
pid_t machine__get_current_tid(struct machine *machine, int cpu);
int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
pid_t tid);
+/*
+ * For use with libtraceevent's pevent_set_function_resolver()
+ */
+char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
#endif /* __PERF_MACHINE_H */
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index b5a5e9c02437..b1c475d9b240 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -224,6 +224,20 @@ struct map *map__new2(u64 start, struct dso *dso, enum map_type type)
return map;
}
+/*
+ * Use this and __map__is_kmodule() for map instances that are in
+ * machine->kmaps, and thus have map->groups->machine all properly set, to
+ * disambiguate between the kernel and modules.
+ *
+ * When the need arises, introduce map__is_{kernel,kmodule)() that
+ * checks (map->groups != NULL && map->groups->machine != NULL &&
+ * map->dso->kernel) before calling __map__is_{kernel,kmodule}())
+ */
+bool __map__is_kernel(const struct map *map)
+{
+ return map->groups->machine->vmlinux_maps[map->type] == map;
+}
+
static void map__exit(struct map *map)
{
BUG_ON(!RB_EMPTY_NODE(&map->rb_node));
@@ -334,9 +348,18 @@ struct symbol *map__find_symbol_by_name(struct map *map, const char *name,
return dso__find_symbol_by_name(map->dso, map->type, name);
}
-struct map *map__clone(struct map *map)
+struct map *map__clone(struct map *from)
{
- return memdup(map, sizeof(*map));
+ struct map *map = memdup(from, sizeof(*map));
+
+ if (map != NULL) {
+ atomic_set(&map->refcnt, 1);
+ RB_CLEAR_NODE(&map->rb_node);
+ dso__get(map->dso);
+ map->groups = NULL;
+ }
+
+ return map;
}
int map__overlap(struct map *l, struct map *r)
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index d73e687b224e..57829e89b78b 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -256,4 +256,11 @@ int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
struct map *map_groups__find_by_name(struct map_groups *mg,
enum map_type type, const char *name);
+bool __map__is_kernel(const struct map *map);
+
+static inline bool __map__is_kmodule(const struct map *map)
+{
+ return !__map__is_kernel(map);
+}
+
#endif /* __PERF_MAP_H */
diff --git a/tools/perf/util/ordered-events.c b/tools/perf/util/ordered-events.c
index 52be201b9b25..b1b9e2385f4b 100644
--- a/tools/perf/util/ordered-events.c
+++ b/tools/perf/util/ordered-events.c
@@ -220,6 +220,9 @@ static int __ordered_events__flush(struct ordered_events *oe)
else if (last_ts <= limit)
oe->last = list_entry(head->prev, struct ordered_event, list);
+ if (show_progress)
+ ui_progress__finish();
+
return 0;
}
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 09f8d2357108..d826e6f515db 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -276,7 +276,8 @@ const char *event_type(int type)
static struct perf_evsel *
__add_event(struct list_head *list, int *idx,
struct perf_event_attr *attr,
- char *name, struct cpu_map *cpus)
+ char *name, struct cpu_map *cpus,
+ struct list_head *config_terms)
{
struct perf_evsel *evsel;
@@ -291,14 +292,19 @@ __add_event(struct list_head *list, int *idx,
if (name)
evsel->name = strdup(name);
+
+ if (config_terms)
+ list_splice(config_terms, &evsel->config_terms);
+
list_add_tail(&evsel->node, list);
return evsel;
}
static int add_event(struct list_head *list, int *idx,
- struct perf_event_attr *attr, char *name)
+ struct perf_event_attr *attr, char *name,
+ struct list_head *config_terms)
{
- return __add_event(list, idx, attr, name, NULL) ? 0 : -ENOMEM;
+ return __add_event(list, idx, attr, name, NULL, config_terms) ? 0 : -ENOMEM;
}
static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
@@ -377,7 +383,7 @@ int parse_events_add_cache(struct list_head *list, int *idx,
memset(&attr, 0, sizeof(attr));
attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
attr.type = PERF_TYPE_HW_CACHE;
- return add_event(list, idx, &attr, name);
+ return add_event(list, idx, &attr, name, NULL);
}
static int add_tracepoint(struct list_head *list, int *idx,
@@ -539,7 +545,7 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx,
attr.type = PERF_TYPE_BREAKPOINT;
attr.sample_period = 1;
- return add_event(list, idx, &attr, NULL);
+ return add_event(list, idx, &attr, NULL, NULL);
}
static int check_type_val(struct parse_events_term *term,
@@ -590,7 +596,9 @@ do { \
break;
case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
CHECK_TYPE_VAL(NUM);
- attr->sample_period = term->val.num;
+ break;
+ case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
+ CHECK_TYPE_VAL(NUM);
break;
case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
/*
@@ -598,6 +606,20 @@ do { \
* attr->branch_sample_type = term->val.num;
*/
break;
+ case PARSE_EVENTS__TERM_TYPE_TIME:
+ CHECK_TYPE_VAL(NUM);
+ if (term->val.num > 1) {
+ err->str = strdup("expected 0 or 1");
+ err->idx = term->err_val;
+ return -EINVAL;
+ }
+ break;
+ case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
+ CHECK_TYPE_VAL(STR);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
+ CHECK_TYPE_VAL(NUM);
+ break;
case PARSE_EVENTS__TERM_TYPE_NAME:
CHECK_TYPE_VAL(STR);
break;
@@ -622,22 +644,71 @@ static int config_attr(struct perf_event_attr *attr,
return 0;
}
+static int get_config_terms(struct list_head *head_config,
+ struct list_head *head_terms __maybe_unused)
+{
+#define ADD_CONFIG_TERM(__type, __name, __val) \
+do { \
+ struct perf_evsel_config_term *__t; \
+ \
+ __t = zalloc(sizeof(*__t)); \
+ if (!__t) \
+ return -ENOMEM; \
+ \
+ INIT_LIST_HEAD(&__t->list); \
+ __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \
+ __t->val.__name = __val; \
+ list_add_tail(&__t->list, head_terms); \
+} while (0)
+
+ struct parse_events_term *term;
+
+ list_for_each_entry(term, head_config, list) {
+ switch (term->type_term) {
+ case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
+ ADD_CONFIG_TERM(PERIOD, period, term->val.num);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
+ ADD_CONFIG_TERM(FREQ, freq, term->val.num);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_TIME:
+ ADD_CONFIG_TERM(TIME, time, term->val.num);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
+ ADD_CONFIG_TERM(CALLGRAPH, callgraph, term->val.str);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
+ ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num);
+ break;
+ default:
+ break;
+ }
+ }
+#undef ADD_EVSEL_CONFIG
+ return 0;
+}
+
int parse_events_add_numeric(struct parse_events_evlist *data,
struct list_head *list,
u32 type, u64 config,
struct list_head *head_config)
{
struct perf_event_attr attr;
+ LIST_HEAD(config_terms);
memset(&attr, 0, sizeof(attr));
attr.type = type;
attr.config = config;
- if (head_config &&
- config_attr(&attr, head_config, data->error))
- return -EINVAL;
+ if (head_config) {
+ if (config_attr(&attr, head_config, data->error))
+ return -EINVAL;
+
+ if (get_config_terms(head_config, &config_terms))
+ return -ENOMEM;
+ }
- return add_event(list, &data->idx, &attr, NULL);
+ return add_event(list, &data->idx, &attr, NULL, &config_terms);
}
static int parse_events__is_name_term(struct parse_events_term *term)
@@ -664,6 +735,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
struct perf_pmu_info info;
struct perf_pmu *pmu;
struct perf_evsel *evsel;
+ LIST_HEAD(config_terms);
pmu = perf_pmu__find(name);
if (!pmu)
@@ -678,7 +750,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
if (!head_config) {
attr.type = pmu->type;
- evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus);
+ evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus, NULL);
return evsel ? 0 : -ENOMEM;
}
@@ -692,11 +764,15 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
if (config_attr(&attr, head_config, data->error))
return -EINVAL;
+ if (get_config_terms(head_config, &config_terms))
+ return -ENOMEM;
+
if (perf_pmu__config(pmu, &attr, head_config, data->error))
return -EINVAL;
evsel = __add_event(list, &data->idx, &attr,
- pmu_event_name(head_config), pmu->cpus);
+ pmu_event_name(head_config), pmu->cpus,
+ &config_terms);
if (evsel) {
evsel->unit = info.unit;
evsel->scale = info.scale;
@@ -1065,8 +1141,13 @@ int parse_events(struct perf_evlist *evlist, const char *str,
perf_pmu__parse_cleanup();
if (!ret) {
int entries = data.idx - evlist->nr_entries;
+ struct perf_evsel *last;
+
perf_evlist__splice_list_tail(evlist, &data.list, entries);
evlist->nr_groups += data.nr_groups;
+ last = perf_evlist__last(evlist);
+ last->cmdline_group_boundary = true;
+
return 0;
}
@@ -1105,7 +1186,7 @@ static void parse_events_print_error(struct parse_events_error *err,
* Maximum error index indent, we will cut
* the event string if it's bigger.
*/
- int max_err_idx = 10;
+ int max_err_idx = 13;
/*
* Let's be specific with the message when
@@ -1162,30 +1243,93 @@ int parse_events_option(const struct option *opt, const char *str,
return ret;
}
-int parse_filter(const struct option *opt, const char *str,
- int unset __maybe_unused)
+static int
+foreach_evsel_in_last_glob(struct perf_evlist *evlist,
+ int (*func)(struct perf_evsel *evsel,
+ const void *arg),
+ const void *arg)
{
- struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
struct perf_evsel *last = NULL;
+ int err;
if (evlist->nr_entries > 0)
last = perf_evlist__last(evlist);
- if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
+ do {
+ err = (*func)(last, arg);
+ if (err)
+ return -1;
+ if (!last)
+ return 0;
+
+ if (last->node.prev == &evlist->entries)
+ return 0;
+ last = list_entry(last->node.prev, struct perf_evsel, node);
+ } while (!last->cmdline_group_boundary);
+
+ return 0;
+}
+
+static int set_filter(struct perf_evsel *evsel, const void *arg)
+{
+ const char *str = arg;
+
+ if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
fprintf(stderr,
"--filter option should follow a -e tracepoint option\n");
return -1;
}
- last->filter = strdup(str);
- if (last->filter == NULL) {
- fprintf(stderr, "not enough memory to hold filter string\n");
+ if (perf_evsel__append_filter(evsel, "&&", str) < 0) {
+ fprintf(stderr,
+ "not enough memory to hold filter string\n");
return -1;
}
return 0;
}
+int parse_filter(const struct option *opt, const char *str,
+ int unset __maybe_unused)
+{
+ struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
+
+ return foreach_evsel_in_last_glob(evlist, set_filter,
+ (const void *)str);
+}
+
+static int add_exclude_perf_filter(struct perf_evsel *evsel,
+ const void *arg __maybe_unused)
+{
+ char new_filter[64];
+
+ if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
+ fprintf(stderr,
+ "--exclude-perf option should follow a -e tracepoint option\n");
+ return -1;
+ }
+
+ snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
+
+ if (perf_evsel__append_filter(evsel, "&&", new_filter) < 0) {
+ fprintf(stderr,
+ "not enough memory to hold filter string\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+int exclude_perf(const struct option *opt,
+ const char *arg __maybe_unused,
+ int unset __maybe_unused)
+{
+ struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
+
+ return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
+ NULL);
+}
+
static const char * const event_type_descriptors[] = {
"Hardware event",
"Software event",
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 131f29b2f132..a09b0e210997 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -34,6 +34,7 @@ extern int parse_events(struct perf_evlist *evlist, const char *str,
struct parse_events_error *error);
extern int parse_events_terms(struct list_head *terms, const char *str);
extern int parse_filter(const struct option *opt, const char *str, int unset);
+extern int exclude_perf(const struct option *opt, const char *arg, int unset);
#define EVENTS_HELP_MAX (128*1024)
@@ -61,7 +62,11 @@ enum {
PARSE_EVENTS__TERM_TYPE_CONFIG2,
PARSE_EVENTS__TERM_TYPE_NAME,
PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD,
+ PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ,
PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
+ PARSE_EVENTS__TERM_TYPE_TIME,
+ PARSE_EVENTS__TERM_TYPE_CALLGRAPH,
+ PARSE_EVENTS__TERM_TYPE_STACKSIZE,
};
struct parse_events_term {
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 13cef3c65565..936d566f48d8 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -182,7 +182,11 @@ config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
+freq { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ); }
branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
+time { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); }
+call-graph { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); }
+stack-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); }
, { return ','; }
"/" { BEGIN(INITIAL); return '/'; }
{name_minus} { return str(yyscanner, PE_NAME); }
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 7bcb8c315615..89c91a1a67e7 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -462,10 +462,6 @@ static struct perf_pmu *pmu_lookup(const char *name)
LIST_HEAD(aliases);
__u32 type;
- /* No support for intel_bts or intel_pt so disallow them */
- if (!strcmp(name, "intel_bts") || !strcmp(name, "intel_pt"))
- return NULL;
-
/*
* The pmu data we store & need consists of the pmu
* type value and format definitions. Load both right
@@ -542,7 +538,7 @@ struct perf_pmu *perf_pmu__find(const char *name)
}
static struct perf_pmu_format *
-pmu_find_format(struct list_head *formats, char *name)
+pmu_find_format(struct list_head *formats, const char *name)
{
struct perf_pmu_format *format;
@@ -553,6 +549,21 @@ pmu_find_format(struct list_head *formats, char *name)
return NULL;
}
+__u64 perf_pmu__format_bits(struct list_head *formats, const char *name)
+{
+ struct perf_pmu_format *format = pmu_find_format(formats, name);
+ __u64 bits = 0;
+ int fbit;
+
+ if (!format)
+ return 0;
+
+ for_each_set_bit(fbit, format->bits, PERF_PMU_FORMAT_BITS)
+ bits |= 1ULL << fbit;
+
+ return bits;
+}
+
/*
* Sets value based on the format definition (format parameter)
* and unformated value (value parameter).
@@ -574,6 +585,18 @@ static void pmu_format_value(unsigned long *format, __u64 value, __u64 *v,
}
}
+static __u64 pmu_format_max_value(const unsigned long *format)
+{
+ int w;
+
+ w = bitmap_weight(format, PERF_PMU_FORMAT_BITS);
+ if (!w)
+ return 0;
+ if (w < 64)
+ return (1ULL << w) - 1;
+ return -1;
+}
+
/*
* Term is a string term, and might be a param-term. Try to look up it's value
* in the remaining terms.
@@ -607,7 +630,9 @@ static char *formats_error_string(struct list_head *formats)
{
struct perf_pmu_format *format;
char *err, *str;
- static const char *static_terms = "config,config1,config2,name,period,branch_type\n";
+ static const char *static_terms = "config,config1,config2,name,"
+ "period,freq,branch_type,time,"
+ "call-graph,stack-size\n";
unsigned i = 0;
if (!asprintf(&str, "valid terms:"))
@@ -647,7 +672,7 @@ static int pmu_config_term(struct list_head *formats,
{
struct perf_pmu_format *format;
__u64 *vp;
- __u64 val;
+ __u64 val, max_val;
/*
* If this is a parameter we've already used for parameterized-eval,
@@ -713,6 +738,22 @@ static int pmu_config_term(struct list_head *formats,
} else
return -EINVAL;
+ max_val = pmu_format_max_value(format->bits);
+ if (val > max_val) {
+ if (err) {
+ err->idx = term->err_val;
+ if (asprintf(&err->str,
+ "value too big for format, maximum is %llu",
+ (unsigned long long)max_val) < 0)
+ err->str = strdup("value too big for format");
+ return -EINVAL;
+ }
+ /*
+ * Assume we don't care if !err, in which case the value will be
+ * silently truncated.
+ */
+ }
+
pmu_format_value(format->bits, val, vp, zero);
return 0;
}
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 7b9c8cf8ae3e..5d7e84466bee 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -54,6 +54,7 @@ int perf_pmu__config_terms(struct list_head *formats,
struct perf_event_attr *attr,
struct list_head *head_terms,
bool zero, struct parse_events_error *error);
+__u64 perf_pmu__format_bits(struct list_head *formats, const char *name);
int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
struct perf_pmu_info *info);
struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 381f23a443c7..eb5f18b75402 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -45,6 +45,7 @@
#include "trace-event.h" /* For __maybe_unused */
#include "probe-event.h"
#include "probe-finder.h"
+#include "probe-file.h"
#include "session.h"
#define MAX_CMDLEN 256
@@ -55,11 +56,7 @@ struct probe_conf probe_conf;
#define semantic_error(msg ...) pr_err("Semantic error :" msg)
-/* If there is no space to write, returns -E2BIG. */
-static int e_snprintf(char *str, size_t size, const char *format, ...)
- __attribute__((format(printf, 3, 4)));
-
-static int e_snprintf(char *str, size_t size, const char *format, ...)
+int e_snprintf(char *str, size_t size, const char *format, ...)
{
int ret;
va_list ap;
@@ -72,7 +69,6 @@ static int e_snprintf(char *str, size_t size, const char *format, ...)
}
static char *synthesize_perf_probe_point(struct perf_probe_point *pp);
-static void clear_probe_trace_event(struct probe_trace_event *tev);
static struct machine *host_machine;
/* Initialize symbol maps and path of vmlinux/modules */
@@ -519,7 +515,7 @@ static int find_perf_probe_point_from_dwarf(struct probe_trace_point *tp,
if (ret < 0)
goto error;
addr += stext;
- } else {
+ } else if (tp->symbol) {
addr = kernel_get_symbol_address_by_name(tp->symbol, false);
if (addr == 0)
goto error;
@@ -709,9 +705,10 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
}
/* Error path : ntevs < 0 */
pr_debug("An error occurred in debuginfo analysis (%d).\n", ntevs);
- if (ntevs == -EBADF) {
- pr_warning("Warning: No dwarf info found in the vmlinux - "
- "please rebuild kernel with CONFIG_DEBUG_INFO=y.\n");
+ if (ntevs < 0) {
+ if (ntevs == -EBADF)
+ pr_warning("Warning: No dwarf info found in the vmlinux - "
+ "please rebuild kernel with CONFIG_DEBUG_INFO=y.\n");
if (!need_dwarf) {
pr_debug("Trying to use symbols.\n");
return 0;
@@ -1197,15 +1194,37 @@ static int parse_perf_probe_point(char *arg, struct perf_probe_event *pev)
*ptr++ = '\0';
}
- tmp = strdup(arg);
- if (tmp == NULL)
- return -ENOMEM;
+ if (arg[0] == '\0')
+ tmp = NULL;
+ else {
+ tmp = strdup(arg);
+ if (tmp == NULL)
+ return -ENOMEM;
+ }
if (file_spec)
pp->file = tmp;
- else
+ else {
pp->function = tmp;
+ /*
+ * Keep pp->function even if this is absolute address,
+ * so it can mark whether abs_address is valid.
+ * Which make 'perf probe lib.bin 0x0' possible.
+ *
+ * Note that checking length of tmp is not needed
+ * because when we access tmp[1] we know tmp[0] is '0',
+ * so tmp[1] should always valid (but could be '\0').
+ */
+ if (tmp && !strncmp(tmp, "0x", 2)) {
+ pp->abs_address = strtoul(pp->function, &tmp, 0);
+ if (*tmp != '\0') {
+ semantic_error("Invalid absolute address.\n");
+ return -EINVAL;
+ }
+ }
+ }
+
/* Parse other options */
while (ptr) {
arg = ptr;
@@ -1467,8 +1486,7 @@ bool perf_probe_event_need_dwarf(struct perf_probe_event *pev)
}
/* Parse probe_events event into struct probe_point */
-static int parse_probe_trace_command(const char *cmd,
- struct probe_trace_event *tev)
+int parse_probe_trace_command(const char *cmd, struct probe_trace_event *tev)
{
struct probe_trace_point *tp = &tev->point;
char pr;
@@ -1523,9 +1541,31 @@ static int parse_probe_trace_command(const char *cmd,
} else
p = argv[1];
fmt1_str = strtok_r(p, "+", &fmt);
- if (fmt1_str[0] == '0') /* only the address started with 0x */
- tp->address = strtoul(fmt1_str, NULL, 0);
- else {
+ /* only the address started with 0x */
+ if (fmt1_str[0] == '0') {
+ /*
+ * Fix a special case:
+ * if address == 0, kernel reports something like:
+ * p:probe_libc/abs_0 /lib/libc-2.18.so:0x (null) arg1=%ax
+ * Newer kernel may fix that, but we want to
+ * support old kernel also.
+ */
+ if (strcmp(fmt1_str, "0x") == 0) {
+ if (!argv[2] || strcmp(argv[2], "(null)")) {
+ ret = -EINVAL;
+ goto out;
+ }
+ tp->address = 0;
+
+ free(argv[2]);
+ for (i = 2; argv[i + 1] != NULL; i++)
+ argv[i] = argv[i + 1];
+
+ argv[i] = NULL;
+ argc -= 1;
+ } else
+ tp->address = strtoul(fmt1_str, NULL, 0);
+ } else {
/* Only the symbol-based probe has offset */
tp->symbol = strdup(fmt1_str);
if (tp->symbol == NULL) {
@@ -1782,14 +1822,29 @@ char *synthesize_probe_trace_command(struct probe_trace_event *tev)
if (len <= 0)
goto error;
- /* Uprobes must have tp->address and tp->module */
- if (tev->uprobes && (!tp->address || !tp->module))
+ /* Uprobes must have tp->module */
+ if (tev->uprobes && !tp->module)
goto error;
+ /*
+ * If tp->address == 0, then this point must be a
+ * absolute address uprobe.
+ * try_to_find_absolute_address() should have made
+ * tp->symbol to "0x0".
+ */
+ if (tev->uprobes && !tp->address) {
+ if (!tp->symbol || strcmp(tp->symbol, "0x0"))
+ goto error;
+ }
/* Use the tp->address for uprobes */
if (tev->uprobes)
ret = e_snprintf(buf + len, MAX_CMDLEN - len, "%s:0x%lx",
tp->module, tp->address);
+ else if (!strncmp(tp->symbol, "0x", 2))
+ /* Absolute address. See try_to_find_absolute_address() */
+ ret = e_snprintf(buf + len, MAX_CMDLEN - len, "%s%s0x%lx",
+ tp->module ?: "", tp->module ? ":" : "",
+ tp->address);
else
ret = e_snprintf(buf + len, MAX_CMDLEN - len, "%s%s%s+%lu",
tp->module ?: "", tp->module ? ":" : "",
@@ -1819,17 +1874,17 @@ static int find_perf_probe_point_from_map(struct probe_trace_point *tp,
{
struct symbol *sym = NULL;
struct map *map;
- u64 addr;
+ u64 addr = tp->address;
int ret = -ENOENT;
if (!is_kprobe) {
map = dso__new_map(tp->module);
if (!map)
goto out;
- addr = tp->address;
sym = map__find_symbol(map, addr, NULL);
} else {
- addr = kernel_get_symbol_address_by_name(tp->symbol, true);
+ if (tp->symbol)
+ addr = kernel_get_symbol_address_by_name(tp->symbol, true);
if (addr) {
addr += tp->offset;
sym = __find_kernel_function(addr, &map);
@@ -1852,8 +1907,8 @@ out:
}
static int convert_to_perf_probe_point(struct probe_trace_point *tp,
- struct perf_probe_point *pp,
- bool is_kprobe)
+ struct perf_probe_point *pp,
+ bool is_kprobe)
{
char buf[128];
int ret;
@@ -1870,7 +1925,7 @@ static int convert_to_perf_probe_point(struct probe_trace_point *tp,
if (tp->symbol) {
pp->function = strdup(tp->symbol);
pp->offset = tp->offset;
- } else if (!tp->module && !is_kprobe) {
+ } else {
ret = e_snprintf(buf, 128, "0x%" PRIx64, (u64)tp->address);
if (ret < 0)
return ret;
@@ -1951,7 +2006,7 @@ void clear_perf_probe_event(struct perf_probe_event *pev)
memset(pev, 0, sizeof(*pev));
}
-static void clear_probe_trace_event(struct probe_trace_event *tev)
+void clear_probe_trace_event(struct probe_trace_event *tev)
{
struct probe_trace_arg_ref *ref, *next;
int i;
@@ -1976,119 +2031,6 @@ static void clear_probe_trace_event(struct probe_trace_event *tev)
memset(tev, 0, sizeof(*tev));
}
-static void print_open_warning(int err, bool is_kprobe)
-{
- char sbuf[STRERR_BUFSIZE];
-
- if (err == -ENOENT) {
- const char *config;
-
- if (!is_kprobe)
- config = "CONFIG_UPROBE_EVENTS";
- else
- config = "CONFIG_KPROBE_EVENTS";
-
- pr_warning("%cprobe_events file does not exist"
- " - please rebuild kernel with %s.\n",
- is_kprobe ? 'k' : 'u', config);
- } else if (err == -ENOTSUP)
- pr_warning("Tracefs or debugfs is not mounted.\n");
- else
- pr_warning("Failed to open %cprobe_events: %s\n",
- is_kprobe ? 'k' : 'u',
- strerror_r(-err, sbuf, sizeof(sbuf)));
-}
-
-static void print_both_open_warning(int kerr, int uerr)
-{
- /* Both kprobes and uprobes are disabled, warn it. */
- if (kerr == -ENOTSUP && uerr == -ENOTSUP)
- pr_warning("Tracefs or debugfs is not mounted.\n");
- else if (kerr == -ENOENT && uerr == -ENOENT)
- pr_warning("Please rebuild kernel with CONFIG_KPROBE_EVENTS "
- "or/and CONFIG_UPROBE_EVENTS.\n");
- else {
- char sbuf[STRERR_BUFSIZE];
- pr_warning("Failed to open kprobe events: %s.\n",
- strerror_r(-kerr, sbuf, sizeof(sbuf)));
- pr_warning("Failed to open uprobe events: %s.\n",
- strerror_r(-uerr, sbuf, sizeof(sbuf)));
- }
-}
-
-static int open_probe_events(const char *trace_file, bool readwrite)
-{
- char buf[PATH_MAX];
- const char *__debugfs;
- const char *tracing_dir = "";
- int ret;
-
- __debugfs = tracefs_find_mountpoint();
- if (__debugfs == NULL) {
- tracing_dir = "tracing/";
-
- __debugfs = debugfs_find_mountpoint();
- if (__debugfs == NULL)
- return -ENOTSUP;
- }
-
- ret = e_snprintf(buf, PATH_MAX, "%s/%s%s",
- __debugfs, tracing_dir, trace_file);
- if (ret >= 0) {
- pr_debug("Opening %s write=%d\n", buf, readwrite);
- if (readwrite && !probe_event_dry_run)
- ret = open(buf, O_RDWR | O_APPEND, 0);
- else
- ret = open(buf, O_RDONLY, 0);
-
- if (ret < 0)
- ret = -errno;
- }
- return ret;
-}
-
-static int open_kprobe_events(bool readwrite)
-{
- return open_probe_events("kprobe_events", readwrite);
-}
-
-static int open_uprobe_events(bool readwrite)
-{
- return open_probe_events("uprobe_events", readwrite);
-}
-
-/* Get raw string list of current kprobe_events or uprobe_events */
-static struct strlist *get_probe_trace_command_rawlist(int fd)
-{
- int ret, idx;
- FILE *fp;
- char buf[MAX_CMDLEN];
- char *p;
- struct strlist *sl;
-
- sl = strlist__new(true, NULL);
-
- fp = fdopen(dup(fd), "r");
- while (!feof(fp)) {
- p = fgets(buf, MAX_CMDLEN, fp);
- if (!p)
- break;
-
- idx = strlen(p) - 1;
- if (p[idx] == '\n')
- p[idx] = '\0';
- ret = strlist__add(sl, buf);
- if (ret < 0) {
- pr_debug("strlist__add failed (%d)\n", ret);
- strlist__delete(sl);
- return NULL;
- }
- }
- fclose(fp);
-
- return sl;
-}
-
struct kprobe_blacklist_node {
struct list_head list;
unsigned long start;
@@ -2284,7 +2226,7 @@ static int __show_perf_probe_events(int fd, bool is_kprobe,
memset(&tev, 0, sizeof(tev));
memset(&pev, 0, sizeof(pev));
- rawlist = get_probe_trace_command_rawlist(fd);
+ rawlist = probe_file__get_rawlist(fd);
if (!rawlist)
return -ENOMEM;
@@ -2325,89 +2267,20 @@ int show_perf_probe_events(struct strfilter *filter)
if (ret < 0)
return ret;
- kp_fd = open_kprobe_events(false);
- if (kp_fd >= 0) {
- ret = __show_perf_probe_events(kp_fd, true, filter);
- close(kp_fd);
- if (ret < 0)
- goto out;
- }
-
- up_fd = open_uprobe_events(false);
- if (kp_fd < 0 && up_fd < 0) {
- print_both_open_warning(kp_fd, up_fd);
- ret = kp_fd;
- goto out;
- }
+ ret = probe_file__open_both(&kp_fd, &up_fd, 0);
+ if (ret < 0)
+ return ret;
- if (up_fd >= 0) {
+ if (kp_fd >= 0)
+ ret = __show_perf_probe_events(kp_fd, true, filter);
+ if (up_fd >= 0 && ret >= 0)
ret = __show_perf_probe_events(up_fd, false, filter);
+ if (kp_fd > 0)
+ close(kp_fd);
+ if (up_fd > 0)
close(up_fd);
- }
-out:
exit_symbol_maps();
- return ret;
-}
-/* Get current perf-probe event names */
-static struct strlist *get_probe_trace_event_names(int fd, bool include_group)
-{
- char buf[128];
- struct strlist *sl, *rawlist;
- struct str_node *ent;
- struct probe_trace_event tev;
- int ret = 0;
-
- memset(&tev, 0, sizeof(tev));
- rawlist = get_probe_trace_command_rawlist(fd);
- if (!rawlist)
- return NULL;
- sl = strlist__new(true, NULL);
- strlist__for_each(ent, rawlist) {
- ret = parse_probe_trace_command(ent->s, &tev);
- if (ret < 0)
- break;
- if (include_group) {
- ret = e_snprintf(buf, 128, "%s:%s", tev.group,
- tev.event);
- if (ret >= 0)
- ret = strlist__add(sl, buf);
- } else
- ret = strlist__add(sl, tev.event);
- clear_probe_trace_event(&tev);
- if (ret < 0)
- break;
- }
- strlist__delete(rawlist);
-
- if (ret < 0) {
- strlist__delete(sl);
- return NULL;
- }
- return sl;
-}
-
-static int write_probe_trace_event(int fd, struct probe_trace_event *tev)
-{
- int ret = 0;
- char *buf = synthesize_probe_trace_command(tev);
- char sbuf[STRERR_BUFSIZE];
-
- if (!buf) {
- pr_debug("Failed to synthesize probe trace event.\n");
- return -EINVAL;
- }
-
- pr_debug("Writing event: %s\n", buf);
- if (!probe_event_dry_run) {
- ret = write(fd, buf, strlen(buf));
- if (ret <= 0) {
- ret = -errno;
- pr_warning("Failed to write event: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
- }
- }
- free(buf);
return ret;
}
@@ -2478,36 +2351,69 @@ out:
free(buf);
}
+/* Set new name from original perf_probe_event and namelist */
+static int probe_trace_event__set_name(struct probe_trace_event *tev,
+ struct perf_probe_event *pev,
+ struct strlist *namelist,
+ bool allow_suffix)
+{
+ const char *event, *group;
+ char buf[64];
+ int ret;
+
+ if (pev->event)
+ event = pev->event;
+ else
+ if (pev->point.function &&
+ (strncmp(pev->point.function, "0x", 2) != 0) &&
+ !strisglob(pev->point.function))
+ event = pev->point.function;
+ else
+ event = tev->point.realname;
+ if (pev->group)
+ group = pev->group;
+ else
+ group = PERFPROBE_GROUP;
+
+ /* Get an unused new event name */
+ ret = get_new_event_name(buf, 64, event,
+ namelist, allow_suffix);
+ if (ret < 0)
+ return ret;
+
+ event = buf;
+
+ tev->event = strdup(event);
+ tev->group = strdup(group);
+ if (tev->event == NULL || tev->group == NULL)
+ return -ENOMEM;
+
+ /* Add added event name to namelist */
+ strlist__add(namelist, event);
+ return 0;
+}
+
static int __add_probe_trace_events(struct perf_probe_event *pev,
struct probe_trace_event *tevs,
int ntevs, bool allow_suffix)
{
int i, fd, ret;
struct probe_trace_event *tev = NULL;
- char buf[64];
const char *event = NULL, *group = NULL;
struct strlist *namelist;
- bool safename;
-
- if (pev->uprobes)
- fd = open_uprobe_events(true);
- else
- fd = open_kprobe_events(true);
- if (fd < 0) {
- print_open_warning(fd, !pev->uprobes);
+ fd = probe_file__open(PF_FL_RW | (pev->uprobes ? PF_FL_UPROBE : 0));
+ if (fd < 0)
return fd;
- }
/* Get current event names */
- namelist = get_probe_trace_event_names(fd, false);
+ namelist = probe_file__get_namelist(fd);
if (!namelist) {
pr_debug("Failed to get current event list.\n");
ret = -ENOMEM;
goto close_out;
}
- safename = (pev->point.function && !strisglob(pev->point.function));
ret = 0;
pr_info("Added new event%s\n", (ntevs > 1) ? "s:" : ":");
for (i = 0; i < ntevs; i++) {
@@ -2516,36 +2422,15 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
if (!tev->point.symbol)
continue;
- if (pev->event)
- event = pev->event;
- else
- if (safename)
- event = pev->point.function;
- else
- event = tev->point.realname;
- if (pev->group)
- group = pev->group;
- else
- group = PERFPROBE_GROUP;
-
- /* Get an unused new event name */
- ret = get_new_event_name(buf, 64, event,
- namelist, allow_suffix);
+ /* Set new name for tev (and update namelist) */
+ ret = probe_trace_event__set_name(tev, pev, namelist,
+ allow_suffix);
if (ret < 0)
break;
- event = buf;
- tev->event = strdup(event);
- tev->group = strdup(group);
- if (tev->event == NULL || tev->group == NULL) {
- ret = -ENOMEM;
- break;
- }
- ret = write_probe_trace_event(fd, tev);
+ ret = probe_file__add_event(fd, tev);
if (ret < 0)
break;
- /* Add added event name to namelist */
- strlist__add(namelist, event);
/* We use tev's name for showing new events */
show_perf_probe_event(tev->group, tev->event, pev,
@@ -2748,6 +2633,98 @@ err_out:
goto out;
}
+static int try_to_find_absolute_address(struct perf_probe_event *pev,
+ struct probe_trace_event **tevs)
+{
+ struct perf_probe_point *pp = &pev->point;
+ struct probe_trace_event *tev;
+ struct probe_trace_point *tp;
+ int i, err;
+
+ if (!(pev->point.function && !strncmp(pev->point.function, "0x", 2)))
+ return -EINVAL;
+ if (perf_probe_event_need_dwarf(pev))
+ return -EINVAL;
+
+ /*
+ * This is 'perf probe /lib/libc.so 0xabcd'. Try to probe at
+ * absolute address.
+ *
+ * Only one tev can be generated by this.
+ */
+ *tevs = zalloc(sizeof(*tev));
+ if (!*tevs)
+ return -ENOMEM;
+
+ tev = *tevs;
+ tp = &tev->point;
+
+ /*
+ * Don't use tp->offset, use address directly, because
+ * in synthesize_probe_trace_command() address cannot be
+ * zero.
+ */
+ tp->address = pev->point.abs_address;
+ tp->retprobe = pp->retprobe;
+ tev->uprobes = pev->uprobes;
+
+ err = -ENOMEM;
+ /*
+ * Give it a '0x' leading symbol name.
+ * In __add_probe_trace_events, a NULL symbol is interpreted as
+ * invalud.
+ */
+ if (asprintf(&tp->symbol, "0x%lx", tp->address) < 0)
+ goto errout;
+
+ /* For kprobe, check range */
+ if ((!tev->uprobes) &&
+ (kprobe_warn_out_range(tev->point.symbol,
+ tev->point.address))) {
+ err = -EACCES;
+ goto errout;
+ }
+
+ if (asprintf(&tp->realname, "abs_%lx", tp->address) < 0)
+ goto errout;
+
+ if (pev->target) {
+ tp->module = strdup(pev->target);
+ if (!tp->module)
+ goto errout;
+ }
+
+ if (tev->group) {
+ tev->group = strdup(pev->group);
+ if (!tev->group)
+ goto errout;
+ }
+
+ if (pev->event) {
+ tev->event = strdup(pev->event);
+ if (!tev->event)
+ goto errout;
+ }
+
+ tev->nargs = pev->nargs;
+ tev->args = zalloc(sizeof(struct probe_trace_arg) * tev->nargs);
+ if (!tev->args) {
+ err = -ENOMEM;
+ goto errout;
+ }
+ for (i = 0; i < tev->nargs; i++)
+ copy_to_probe_trace_arg(&tev->args[i], &pev->args[i]);
+
+ return 1;
+
+errout:
+ if (*tevs) {
+ clear_probe_trace_events(*tevs, 1);
+ *tevs = NULL;
+ }
+ return err;
+}
+
bool __weak arch__prefers_symtab(void) { return false; }
static int convert_to_probe_trace_events(struct perf_probe_event *pev,
@@ -2764,6 +2741,10 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
}
}
+ ret = try_to_find_absolute_address(pev, tevs);
+ if (ret > 0)
+ return ret;
+
if (arch__prefers_symtab() && !perf_probe_event_need_dwarf(pev)) {
ret = find_probe_trace_events_from_map(pev, tevs);
if (ret > 0)
@@ -2838,68 +2819,9 @@ end:
return ret;
}
-static int __del_trace_probe_event(int fd, struct str_node *ent)
-{
- char *p;
- char buf[128];
- int ret;
-
- /* Convert from perf-probe event to trace-probe event */
- ret = e_snprintf(buf, 128, "-:%s", ent->s);
- if (ret < 0)
- goto error;
-
- p = strchr(buf + 2, ':');
- if (!p) {
- pr_debug("Internal error: %s should have ':' but not.\n",
- ent->s);
- ret = -ENOTSUP;
- goto error;
- }
- *p = '/';
-
- pr_debug("Writing event: %s\n", buf);
- ret = write(fd, buf, strlen(buf));
- if (ret < 0) {
- ret = -errno;
- goto error;
- }
-
- pr_info("Removed event: %s\n", ent->s);
- return 0;
-error:
- pr_warning("Failed to delete event: %s\n",
- strerror_r(-ret, buf, sizeof(buf)));
- return ret;
-}
-
-static int del_trace_probe_events(int fd, struct strfilter *filter,
- struct strlist *namelist)
-{
- struct str_node *ent;
- const char *p;
- int ret = -ENOENT;
-
- if (!namelist)
- return -ENOENT;
-
- strlist__for_each(ent, namelist) {
- p = strchr(ent->s, ':');
- if ((p && strfilter__compare(filter, p + 1)) ||
- strfilter__compare(filter, ent->s)) {
- ret = __del_trace_probe_event(fd, ent);
- if (ret < 0)
- break;
- }
- }
-
- return ret;
-}
-
int del_perf_probe_events(struct strfilter *filter)
{
int ret, ret2, ufd = -1, kfd = -1;
- struct strlist *namelist = NULL, *unamelist = NULL;
char *str = strfilter__string(filter);
if (!str)
@@ -2908,25 +2830,15 @@ int del_perf_probe_events(struct strfilter *filter)
pr_debug("Delete filter: \'%s\'\n", str);
/* Get current event names */
- kfd = open_kprobe_events(true);
- if (kfd >= 0)
- namelist = get_probe_trace_event_names(kfd, true);
-
- ufd = open_uprobe_events(true);
- if (ufd >= 0)
- unamelist = get_probe_trace_event_names(ufd, true);
-
- if (kfd < 0 && ufd < 0) {
- print_both_open_warning(kfd, ufd);
- ret = kfd;
- goto error;
- }
+ ret = probe_file__open_both(&kfd, &ufd, PF_FL_RW);
+ if (ret < 0)
+ goto out;
- ret = del_trace_probe_events(kfd, filter, namelist);
+ ret = probe_file__del_events(kfd, filter);
if (ret < 0 && ret != -ENOENT)
goto error;
- ret2 = del_trace_probe_events(ufd, filter, unamelist);
+ ret2 = probe_file__del_events(ufd, filter);
if (ret2 < 0 && ret2 != -ENOENT) {
ret = ret2;
goto error;
@@ -2937,15 +2849,11 @@ int del_perf_probe_events(struct strfilter *filter)
ret = 0;
error:
- if (kfd >= 0) {
- strlist__delete(namelist);
+ if (kfd >= 0)
close(kfd);
- }
-
- if (ufd >= 0) {
- strlist__delete(unamelist);
+ if (ufd >= 0)
close(ufd);
- }
+out:
free(str);
return ret;
@@ -3007,3 +2915,22 @@ end:
return ret;
}
+int copy_to_probe_trace_arg(struct probe_trace_arg *tvar,
+ struct perf_probe_arg *pvar)
+{
+ tvar->value = strdup(pvar->var);
+ if (tvar->value == NULL)
+ return -ENOMEM;
+ if (pvar->type) {
+ tvar->type = strdup(pvar->type);
+ if (tvar->type == NULL)
+ return -ENOMEM;
+ }
+ if (pvar->name) {
+ tvar->name = strdup(pvar->name);
+ if (tvar->name == NULL)
+ return -ENOMEM;
+ } else
+ tvar->name = NULL;
+ return 0;
+}
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 31db6ee7db54..6e7ec68a4aa8 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -59,6 +59,7 @@ struct perf_probe_point {
bool retprobe; /* Return probe flag */
char *lazy_line; /* Lazy matching pattern */
unsigned long offset; /* Offset from function entry */
+ unsigned long abs_address; /* Absolute address of the point */
};
/* Perf probe probing argument field chain */
@@ -106,9 +107,13 @@ struct variable_list {
struct strlist *vars; /* Available variables */
};
+struct map;
+
/* Command string to events */
extern int parse_perf_probe_command(const char *cmd,
struct perf_probe_event *pev);
+extern int parse_probe_trace_command(const char *cmd,
+ struct probe_trace_event *tev);
/* Events to command string */
extern char *synthesize_perf_probe_command(struct perf_probe_event *pev);
@@ -121,6 +126,7 @@ extern bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);
/* Release event contents */
extern void clear_perf_probe_event(struct perf_probe_event *pev);
+extern void clear_probe_trace_event(struct probe_trace_event *tev);
/* Command string to line-range */
extern int parse_line_range_desc(const char *cmd, struct line_range *lr);
@@ -144,7 +150,14 @@ bool arch__prefers_symtab(void);
void arch__fix_tev_from_maps(struct perf_probe_event *pev,
struct probe_trace_event *tev, struct map *map);
+/* If there is no space to write, returns -E2BIG. */
+int e_snprintf(char *str, size_t size, const char *format, ...)
+ __attribute__((format(printf, 3, 4)));
+
/* Maximum index number of event-name postfix */
#define MAX_EVENT_INDEX 1024
+int copy_to_probe_trace_arg(struct probe_trace_arg *tvar,
+ struct perf_probe_arg *pvar);
+
#endif /*_PROBE_EVENT_H */
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
new file mode 100644
index 000000000000..bbb243717ec8
--- /dev/null
+++ b/tools/perf/util/probe-file.c
@@ -0,0 +1,301 @@
+/*
+ * probe-file.c : operate ftrace k/uprobe events files
+ *
+ * Written by Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+#include "util.h"
+#include "event.h"
+#include "strlist.h"
+#include "debug.h"
+#include "cache.h"
+#include "color.h"
+#include "symbol.h"
+#include "thread.h"
+#include <api/fs/debugfs.h>
+#include <api/fs/tracefs.h>
+#include "probe-event.h"
+#include "probe-file.h"
+#include "session.h"
+
+#define MAX_CMDLEN 256
+
+static void print_open_warning(int err, bool uprobe)
+{
+ char sbuf[STRERR_BUFSIZE];
+
+ if (err == -ENOENT) {
+ const char *config;
+
+ if (uprobe)
+ config = "CONFIG_UPROBE_EVENTS";
+ else
+ config = "CONFIG_KPROBE_EVENTS";
+
+ pr_warning("%cprobe_events file does not exist"
+ " - please rebuild kernel with %s.\n",
+ uprobe ? 'u' : 'k', config);
+ } else if (err == -ENOTSUP)
+ pr_warning("Tracefs or debugfs is not mounted.\n");
+ else
+ pr_warning("Failed to open %cprobe_events: %s\n",
+ uprobe ? 'u' : 'k',
+ strerror_r(-err, sbuf, sizeof(sbuf)));
+}
+
+static void print_both_open_warning(int kerr, int uerr)
+{
+ /* Both kprobes and uprobes are disabled, warn it. */
+ if (kerr == -ENOTSUP && uerr == -ENOTSUP)
+ pr_warning("Tracefs or debugfs is not mounted.\n");
+ else if (kerr == -ENOENT && uerr == -ENOENT)
+ pr_warning("Please rebuild kernel with CONFIG_KPROBE_EVENTS "
+ "or/and CONFIG_UPROBE_EVENTS.\n");
+ else {
+ char sbuf[STRERR_BUFSIZE];
+ pr_warning("Failed to open kprobe events: %s.\n",
+ strerror_r(-kerr, sbuf, sizeof(sbuf)));
+ pr_warning("Failed to open uprobe events: %s.\n",
+ strerror_r(-uerr, sbuf, sizeof(sbuf)));
+ }
+}
+
+static int open_probe_events(const char *trace_file, bool readwrite)
+{
+ char buf[PATH_MAX];
+ const char *__debugfs;
+ const char *tracing_dir = "";
+ int ret;
+
+ __debugfs = tracefs_find_mountpoint();
+ if (__debugfs == NULL) {
+ tracing_dir = "tracing/";
+
+ __debugfs = debugfs_find_mountpoint();
+ if (__debugfs == NULL)
+ return -ENOTSUP;
+ }
+
+ ret = e_snprintf(buf, PATH_MAX, "%s/%s%s",
+ __debugfs, tracing_dir, trace_file);
+ if (ret >= 0) {
+ pr_debug("Opening %s write=%d\n", buf, readwrite);
+ if (readwrite && !probe_event_dry_run)
+ ret = open(buf, O_RDWR | O_APPEND, 0);
+ else
+ ret = open(buf, O_RDONLY, 0);
+
+ if (ret < 0)
+ ret = -errno;
+ }
+ return ret;
+}
+
+static int open_kprobe_events(bool readwrite)
+{
+ return open_probe_events("kprobe_events", readwrite);
+}
+
+static int open_uprobe_events(bool readwrite)
+{
+ return open_probe_events("uprobe_events", readwrite);
+}
+
+int probe_file__open(int flag)
+{
+ int fd;
+
+ if (flag & PF_FL_UPROBE)
+ fd = open_uprobe_events(flag & PF_FL_RW);
+ else
+ fd = open_kprobe_events(flag & PF_FL_RW);
+ if (fd < 0)
+ print_open_warning(fd, flag & PF_FL_UPROBE);
+
+ return fd;
+}
+
+int probe_file__open_both(int *kfd, int *ufd, int flag)
+{
+ if (!kfd || !ufd)
+ return -EINVAL;
+
+ *kfd = open_kprobe_events(flag & PF_FL_RW);
+ *ufd = open_uprobe_events(flag & PF_FL_RW);
+ if (*kfd < 0 && *ufd < 0) {
+ print_both_open_warning(*kfd, *ufd);
+ return *kfd;
+ }
+
+ return 0;
+}
+
+/* Get raw string list of current kprobe_events or uprobe_events */
+struct strlist *probe_file__get_rawlist(int fd)
+{
+ int ret, idx;
+ FILE *fp;
+ char buf[MAX_CMDLEN];
+ char *p;
+ struct strlist *sl;
+
+ sl = strlist__new(NULL, NULL);
+
+ fp = fdopen(dup(fd), "r");
+ while (!feof(fp)) {
+ p = fgets(buf, MAX_CMDLEN, fp);
+ if (!p)
+ break;
+
+ idx = strlen(p) - 1;
+ if (p[idx] == '\n')
+ p[idx] = '\0';
+ ret = strlist__add(sl, buf);
+ if (ret < 0) {
+ pr_debug("strlist__add failed (%d)\n", ret);
+ strlist__delete(sl);
+ return NULL;
+ }
+ }
+ fclose(fp);
+
+ return sl;
+}
+
+static struct strlist *__probe_file__get_namelist(int fd, bool include_group)
+{
+ char buf[128];
+ struct strlist *sl, *rawlist;
+ struct str_node *ent;
+ struct probe_trace_event tev;
+ int ret = 0;
+
+ memset(&tev, 0, sizeof(tev));
+ rawlist = probe_file__get_rawlist(fd);
+ if (!rawlist)
+ return NULL;
+ sl = strlist__new(NULL, NULL);
+ strlist__for_each(ent, rawlist) {
+ ret = parse_probe_trace_command(ent->s, &tev);
+ if (ret < 0)
+ break;
+ if (include_group) {
+ ret = e_snprintf(buf, 128, "%s:%s", tev.group,
+ tev.event);
+ if (ret >= 0)
+ ret = strlist__add(sl, buf);
+ } else
+ ret = strlist__add(sl, tev.event);
+ clear_probe_trace_event(&tev);
+ if (ret < 0)
+ break;
+ }
+ strlist__delete(rawlist);
+
+ if (ret < 0) {
+ strlist__delete(sl);
+ return NULL;
+ }
+ return sl;
+}
+
+/* Get current perf-probe event names */
+struct strlist *probe_file__get_namelist(int fd)
+{
+ return __probe_file__get_namelist(fd, false);
+}
+
+int probe_file__add_event(int fd, struct probe_trace_event *tev)
+{
+ int ret = 0;
+ char *buf = synthesize_probe_trace_command(tev);
+ char sbuf[STRERR_BUFSIZE];
+
+ if (!buf) {
+ pr_debug("Failed to synthesize probe trace event.\n");
+ return -EINVAL;
+ }
+
+ pr_debug("Writing event: %s\n", buf);
+ if (!probe_event_dry_run) {
+ ret = write(fd, buf, strlen(buf));
+ if (ret <= 0) {
+ ret = -errno;
+ pr_warning("Failed to write event: %s\n",
+ strerror_r(errno, sbuf, sizeof(sbuf)));
+ }
+ }
+ free(buf);
+
+ return ret;
+}
+
+static int __del_trace_probe_event(int fd, struct str_node *ent)
+{
+ char *p;
+ char buf[128];
+ int ret;
+
+ /* Convert from perf-probe event to trace-probe event */
+ ret = e_snprintf(buf, 128, "-:%s", ent->s);
+ if (ret < 0)
+ goto error;
+
+ p = strchr(buf + 2, ':');
+ if (!p) {
+ pr_debug("Internal error: %s should have ':' but not.\n",
+ ent->s);
+ ret = -ENOTSUP;
+ goto error;
+ }
+ *p = '/';
+
+ pr_debug("Writing event: %s\n", buf);
+ ret = write(fd, buf, strlen(buf));
+ if (ret < 0) {
+ ret = -errno;
+ goto error;
+ }
+
+ pr_info("Removed event: %s\n", ent->s);
+ return 0;
+error:
+ pr_warning("Failed to delete event: %s\n",
+ strerror_r(-ret, buf, sizeof(buf)));
+ return ret;
+}
+
+int probe_file__del_events(int fd, struct strfilter *filter)
+{
+ struct strlist *namelist;
+ struct str_node *ent;
+ const char *p;
+ int ret = -ENOENT;
+
+ namelist = __probe_file__get_namelist(fd, true);
+ if (!namelist)
+ return -ENOENT;
+
+ strlist__for_each(ent, namelist) {
+ p = strchr(ent->s, ':');
+ if ((p && strfilter__compare(filter, p + 1)) ||
+ strfilter__compare(filter, ent->s)) {
+ ret = __del_trace_probe_event(fd, ent);
+ if (ret < 0)
+ break;
+ }
+ }
+ strlist__delete(namelist);
+
+ return ret;
+}
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h
new file mode 100644
index 000000000000..ada94a242a17
--- /dev/null
+++ b/tools/perf/util/probe-file.h
@@ -0,0 +1,18 @@
+#ifndef __PROBE_FILE_H
+#define __PROBE_FILE_H
+
+#include "strlist.h"
+#include "strfilter.h"
+#include "probe-event.h"
+
+#define PF_FL_UPROBE 1
+#define PF_FL_RW 2
+
+int probe_file__open(int flag);
+int probe_file__open_both(int *kfd, int *ufd, int flag);
+struct strlist *probe_file__get_namelist(int fd);
+struct strlist *probe_file__get_rawlist(int fd);
+int probe_file__add_event(int fd, struct probe_trace_event *tev);
+int probe_file__del_events(int fd, struct strfilter *filter);
+
+#endif
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 2da65a710893..29c43c0680a8 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -553,24 +553,9 @@ static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf)
char buf[32], *ptr;
int ret = 0;
- if (!is_c_varname(pf->pvar->var)) {
- /* Copy raw parameters */
- pf->tvar->value = strdup(pf->pvar->var);
- if (pf->tvar->value == NULL)
- return -ENOMEM;
- if (pf->pvar->type) {
- pf->tvar->type = strdup(pf->pvar->type);
- if (pf->tvar->type == NULL)
- return -ENOMEM;
- }
- if (pf->pvar->name) {
- pf->tvar->name = strdup(pf->pvar->name);
- if (pf->tvar->name == NULL)
- return -ENOMEM;
- } else
- pf->tvar->name = NULL;
- return 0;
- }
+ /* Copy raw parameters */
+ if (!is_c_varname(pf->pvar->var))
+ return copy_to_probe_trace_arg(pf->tvar, pf->pvar);
if (pf->pvar->name)
pf->tvar->name = strdup(pf->pvar->name);
@@ -1355,7 +1340,7 @@ static int add_available_vars(Dwarf_Die *sc_die, struct probe_finder *pf)
vl->point.offset);
/* Find local variables */
- vl->vars = strlist__new(true, NULL);
+ vl->vars = strlist__new(NULL, NULL);
if (vl->vars == NULL)
return -ENOMEM;
af->child = true;
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index 0766d98c5da5..51be28b1bca2 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -16,7 +16,7 @@ util/util.c
util/xyarray.c
util/cgroup.c
util/rblist.c
-util/stat.c
+util/counts.c
util/strlist.c
util/trace-event.c
../lib/rbtree.c
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 626422eda727..6324fe6b161e 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -941,76 +941,84 @@ static int pyrf_evlist__setup_types(void)
return PyType_Ready(&pyrf_evlist__type);
}
+#define PERF_CONST(name) { #name, PERF_##name }
+
static struct {
const char *name;
int value;
} perf__constants[] = {
- { "TYPE_HARDWARE", PERF_TYPE_HARDWARE },
- { "TYPE_SOFTWARE", PERF_TYPE_SOFTWARE },
- { "TYPE_TRACEPOINT", PERF_TYPE_TRACEPOINT },
- { "TYPE_HW_CACHE", PERF_TYPE_HW_CACHE },
- { "TYPE_RAW", PERF_TYPE_RAW },
- { "TYPE_BREAKPOINT", PERF_TYPE_BREAKPOINT },
-
- { "COUNT_HW_CPU_CYCLES", PERF_COUNT_HW_CPU_CYCLES },
- { "COUNT_HW_INSTRUCTIONS", PERF_COUNT_HW_INSTRUCTIONS },
- { "COUNT_HW_CACHE_REFERENCES", PERF_COUNT_HW_CACHE_REFERENCES },
- { "COUNT_HW_CACHE_MISSES", PERF_COUNT_HW_CACHE_MISSES },
- { "COUNT_HW_BRANCH_INSTRUCTIONS", PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
- { "COUNT_HW_BRANCH_MISSES", PERF_COUNT_HW_BRANCH_MISSES },
- { "COUNT_HW_BUS_CYCLES", PERF_COUNT_HW_BUS_CYCLES },
- { "COUNT_HW_CACHE_L1D", PERF_COUNT_HW_CACHE_L1D },
- { "COUNT_HW_CACHE_L1I", PERF_COUNT_HW_CACHE_L1I },
- { "COUNT_HW_CACHE_LL", PERF_COUNT_HW_CACHE_LL },
- { "COUNT_HW_CACHE_DTLB", PERF_COUNT_HW_CACHE_DTLB },
- { "COUNT_HW_CACHE_ITLB", PERF_COUNT_HW_CACHE_ITLB },
- { "COUNT_HW_CACHE_BPU", PERF_COUNT_HW_CACHE_BPU },
- { "COUNT_HW_CACHE_OP_READ", PERF_COUNT_HW_CACHE_OP_READ },
- { "COUNT_HW_CACHE_OP_WRITE", PERF_COUNT_HW_CACHE_OP_WRITE },
- { "COUNT_HW_CACHE_OP_PREFETCH", PERF_COUNT_HW_CACHE_OP_PREFETCH },
- { "COUNT_HW_CACHE_RESULT_ACCESS", PERF_COUNT_HW_CACHE_RESULT_ACCESS },
- { "COUNT_HW_CACHE_RESULT_MISS", PERF_COUNT_HW_CACHE_RESULT_MISS },
-
- { "COUNT_HW_STALLED_CYCLES_FRONTEND", PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
- { "COUNT_HW_STALLED_CYCLES_BACKEND", PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
-
- { "COUNT_SW_CPU_CLOCK", PERF_COUNT_SW_CPU_CLOCK },
- { "COUNT_SW_TASK_CLOCK", PERF_COUNT_SW_TASK_CLOCK },
- { "COUNT_SW_PAGE_FAULTS", PERF_COUNT_SW_PAGE_FAULTS },
- { "COUNT_SW_CONTEXT_SWITCHES", PERF_COUNT_SW_CONTEXT_SWITCHES },
- { "COUNT_SW_CPU_MIGRATIONS", PERF_COUNT_SW_CPU_MIGRATIONS },
- { "COUNT_SW_PAGE_FAULTS_MIN", PERF_COUNT_SW_PAGE_FAULTS_MIN },
- { "COUNT_SW_PAGE_FAULTS_MAJ", PERF_COUNT_SW_PAGE_FAULTS_MAJ },
- { "COUNT_SW_ALIGNMENT_FAULTS", PERF_COUNT_SW_ALIGNMENT_FAULTS },
- { "COUNT_SW_EMULATION_FAULTS", PERF_COUNT_SW_EMULATION_FAULTS },
- { "COUNT_SW_DUMMY", PERF_COUNT_SW_DUMMY },
-
- { "SAMPLE_IP", PERF_SAMPLE_IP },
- { "SAMPLE_TID", PERF_SAMPLE_TID },
- { "SAMPLE_TIME", PERF_SAMPLE_TIME },
- { "SAMPLE_ADDR", PERF_SAMPLE_ADDR },
- { "SAMPLE_READ", PERF_SAMPLE_READ },
- { "SAMPLE_CALLCHAIN", PERF_SAMPLE_CALLCHAIN },
- { "SAMPLE_ID", PERF_SAMPLE_ID },
- { "SAMPLE_CPU", PERF_SAMPLE_CPU },
- { "SAMPLE_PERIOD", PERF_SAMPLE_PERIOD },
- { "SAMPLE_STREAM_ID", PERF_SAMPLE_STREAM_ID },
- { "SAMPLE_RAW", PERF_SAMPLE_RAW },
-
- { "FORMAT_TOTAL_TIME_ENABLED", PERF_FORMAT_TOTAL_TIME_ENABLED },
- { "FORMAT_TOTAL_TIME_RUNNING", PERF_FORMAT_TOTAL_TIME_RUNNING },
- { "FORMAT_ID", PERF_FORMAT_ID },
- { "FORMAT_GROUP", PERF_FORMAT_GROUP },
-
- { "RECORD_MMAP", PERF_RECORD_MMAP },
- { "RECORD_LOST", PERF_RECORD_LOST },
- { "RECORD_COMM", PERF_RECORD_COMM },
- { "RECORD_EXIT", PERF_RECORD_EXIT },
- { "RECORD_THROTTLE", PERF_RECORD_THROTTLE },
- { "RECORD_UNTHROTTLE", PERF_RECORD_UNTHROTTLE },
- { "RECORD_FORK", PERF_RECORD_FORK },
- { "RECORD_READ", PERF_RECORD_READ },
- { "RECORD_SAMPLE", PERF_RECORD_SAMPLE },
+ PERF_CONST(TYPE_HARDWARE),
+ PERF_CONST(TYPE_SOFTWARE),
+ PERF_CONST(TYPE_TRACEPOINT),
+ PERF_CONST(TYPE_HW_CACHE),
+ PERF_CONST(TYPE_RAW),
+ PERF_CONST(TYPE_BREAKPOINT),
+
+ PERF_CONST(COUNT_HW_CPU_CYCLES),
+ PERF_CONST(COUNT_HW_INSTRUCTIONS),
+ PERF_CONST(COUNT_HW_CACHE_REFERENCES),
+ PERF_CONST(COUNT_HW_CACHE_MISSES),
+ PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
+ PERF_CONST(COUNT_HW_BRANCH_MISSES),
+ PERF_CONST(COUNT_HW_BUS_CYCLES),
+ PERF_CONST(COUNT_HW_CACHE_L1D),
+ PERF_CONST(COUNT_HW_CACHE_L1I),
+ PERF_CONST(COUNT_HW_CACHE_LL),
+ PERF_CONST(COUNT_HW_CACHE_DTLB),
+ PERF_CONST(COUNT_HW_CACHE_ITLB),
+ PERF_CONST(COUNT_HW_CACHE_BPU),
+ PERF_CONST(COUNT_HW_CACHE_OP_READ),
+ PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
+ PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
+ PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
+ PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
+
+ PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
+ PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
+
+ PERF_CONST(COUNT_SW_CPU_CLOCK),
+ PERF_CONST(COUNT_SW_TASK_CLOCK),
+ PERF_CONST(COUNT_SW_PAGE_FAULTS),
+ PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
+ PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
+ PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
+ PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
+ PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
+ PERF_CONST(COUNT_SW_EMULATION_FAULTS),
+ PERF_CONST(COUNT_SW_DUMMY),
+
+ PERF_CONST(SAMPLE_IP),
+ PERF_CONST(SAMPLE_TID),
+ PERF_CONST(SAMPLE_TIME),
+ PERF_CONST(SAMPLE_ADDR),
+ PERF_CONST(SAMPLE_READ),
+ PERF_CONST(SAMPLE_CALLCHAIN),
+ PERF_CONST(SAMPLE_ID),
+ PERF_CONST(SAMPLE_CPU),
+ PERF_CONST(SAMPLE_PERIOD),
+ PERF_CONST(SAMPLE_STREAM_ID),
+ PERF_CONST(SAMPLE_RAW),
+
+ PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
+ PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
+ PERF_CONST(FORMAT_ID),
+ PERF_CONST(FORMAT_GROUP),
+
+ PERF_CONST(RECORD_MMAP),
+ PERF_CONST(RECORD_LOST),
+ PERF_CONST(RECORD_COMM),
+ PERF_CONST(RECORD_EXIT),
+ PERF_CONST(RECORD_THROTTLE),
+ PERF_CONST(RECORD_UNTHROTTLE),
+ PERF_CONST(RECORD_FORK),
+ PERF_CONST(RECORD_READ),
+ PERF_CONST(RECORD_SAMPLE),
+ PERF_CONST(RECORD_MMAP2),
+ PERF_CONST(RECORD_AUX),
+ PERF_CONST(RECORD_ITRACE_START),
+ PERF_CONST(RECORD_LOST_SAMPLES),
+ PERF_CONST(RECORD_SWITCH),
+ PERF_CONST(RECORD_SWITCH_CPU_WIDE),
{ .name = NULL, },
};
diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c
index 1f7becbe5e18..0467367dc315 100644
--- a/tools/perf/util/record.c
+++ b/tools/perf/util/record.c
@@ -85,6 +85,11 @@ static void perf_probe_comm_exec(struct perf_evsel *evsel)
evsel->attr.comm_exec = 1;
}
+static void perf_probe_context_switch(struct perf_evsel *evsel)
+{
+ evsel->attr.context_switch = 1;
+}
+
bool perf_can_sample_identifier(void)
{
return perf_probe_api(perf_probe_sample_identifier);
@@ -95,6 +100,35 @@ static bool perf_can_comm_exec(void)
return perf_probe_api(perf_probe_comm_exec);
}
+bool perf_can_record_switch_events(void)
+{
+ return perf_probe_api(perf_probe_context_switch);
+}
+
+bool perf_can_record_cpu_wide(void)
+{
+ struct perf_event_attr attr = {
+ .type = PERF_TYPE_SOFTWARE,
+ .config = PERF_COUNT_SW_CPU_CLOCK,
+ .exclude_kernel = 1,
+ };
+ struct cpu_map *cpus;
+ int cpu, fd;
+
+ cpus = cpu_map__new(NULL);
+ if (!cpus)
+ return false;
+ cpu = cpus->map[0];
+ cpu_map__put(cpus);
+
+ fd = sys_perf_event_open(&attr, -1, cpu, -1, 0);
+ if (fd < 0)
+ return false;
+ close(fd);
+
+ return true;
+}
+
void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts)
{
struct perf_evsel *evsel;
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index ed9dc2555ec7..8a4537ee9bc3 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -170,7 +170,7 @@ static void perf_session__delete_threads(struct perf_session *session)
machine__delete_threads(&session->machines.host);
}
-static void perf_session_env__delete(struct perf_session_env *env)
+static void perf_session_env__exit(struct perf_env *env)
{
zfree(&env->hostname);
zfree(&env->os_release);
@@ -180,6 +180,7 @@ static void perf_session_env__delete(struct perf_session_env *env)
zfree(&env->cpuid);
zfree(&env->cmdline);
+ zfree(&env->cmdline_argv);
zfree(&env->sibling_cores);
zfree(&env->sibling_threads);
zfree(&env->numa_nodes);
@@ -192,7 +193,7 @@ void perf_session__delete(struct perf_session *session)
auxtrace_index__free(&session->auxtrace_index);
perf_session__destroy_kernel_maps(session);
perf_session__delete_threads(session);
- perf_session_env__delete(&session->header.env);
+ perf_session_env__exit(&session->header.env);
machines__exit(&session->machines);
if (session->file)
perf_data_file__close(session->file);
@@ -332,6 +333,8 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
tool->aux = perf_event__process_aux;
if (tool->itrace_start == NULL)
tool->itrace_start = perf_event__process_itrace_start;
+ if (tool->context_switch == NULL)
+ tool->context_switch = perf_event__process_switch;
if (tool->read == NULL)
tool->read = process_event_sample_stub;
if (tool->throttle == NULL)
@@ -470,6 +473,19 @@ static void perf_event__itrace_start_swap(union perf_event *event,
swap_sample_id_all(event, &event->itrace_start + 1);
}
+static void perf_event__switch_swap(union perf_event *event, bool sample_id_all)
+{
+ if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) {
+ event->context_switch.next_prev_pid =
+ bswap_32(event->context_switch.next_prev_pid);
+ event->context_switch.next_prev_tid =
+ bswap_32(event->context_switch.next_prev_tid);
+ }
+
+ if (sample_id_all)
+ swap_sample_id_all(event, &event->context_switch + 1);
+}
+
static void perf_event__throttle_swap(union perf_event *event,
bool sample_id_all)
{
@@ -632,6 +648,8 @@ static perf_event__swap_op perf_event__swap_ops[] = {
[PERF_RECORD_AUX] = perf_event__aux_swap,
[PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap,
[PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap,
+ [PERF_RECORD_SWITCH] = perf_event__switch_swap,
+ [PERF_RECORD_SWITCH_CPU_WIDE] = perf_event__switch_swap,
[PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
[PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
[PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
@@ -766,10 +784,18 @@ static void branch_stack__printf(struct perf_sample *sample)
printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr);
- for (i = 0; i < sample->branch_stack->nr; i++)
- printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n",
- i, sample->branch_stack->entries[i].from,
- sample->branch_stack->entries[i].to);
+ for (i = 0; i < sample->branch_stack->nr; i++) {
+ struct branch_entry *e = &sample->branch_stack->entries[i];
+
+ printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n",
+ i, e->from, e->to,
+ e->flags.cycles,
+ e->flags.mispred ? "M" : " ",
+ e->flags.predicted ? "P" : " ",
+ e->flags.abort ? "A" : " ",
+ e->flags.in_tx ? "T" : " ",
+ (unsigned)e->flags.reserved);
+ }
}
static void regs_dump__printf(u64 mask, u64 *regs)
@@ -1093,6 +1119,9 @@ static int machines__deliver_event(struct machines *machines,
return tool->aux(tool, event, sample, machine);
case PERF_RECORD_ITRACE_START:
return tool->itrace_start(tool, event, sample, machine);
+ case PERF_RECORD_SWITCH:
+ case PERF_RECORD_SWITCH_CPU_WIDE:
+ return tool->context_switch(tool, event, sample, machine);
default:
++evlist->stats.nr_unknown_events;
return -1;
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 4c65a143a34c..7e3871606df3 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -9,7 +9,7 @@ regex_t parent_regex;
const char default_parent_pattern[] = "^sys_|^do_page_fault";
const char *parent_pattern = default_parent_pattern;
const char default_sort_order[] = "comm,dso,symbol";
-const char default_branch_sort_order[] = "comm,dso_from,symbol_from,dso_to,symbol_to";
+const char default_branch_sort_order[] = "comm,dso_from,symbol_from,symbol_to,cycles";
const char default_mem_sort_order[] = "local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked";
const char default_top_sort_order[] = "dso,symbol";
const char default_diff_sort_order[] = "dso,symbol";
@@ -319,6 +319,59 @@ struct sort_entry sort_srcline = {
.se_width_idx = HISTC_SRCLINE,
};
+/* --sort srcfile */
+
+static char no_srcfile[1];
+
+static char *get_srcfile(struct hist_entry *e)
+{
+ char *sf, *p;
+ struct map *map = e->ms.map;
+
+ sf = get_srcline(map->dso, map__rip_2objdump(map, e->ip),
+ e->ms.sym, true);
+ if (!strcmp(sf, SRCLINE_UNKNOWN))
+ return no_srcfile;
+ p = strchr(sf, ':');
+ if (p && *sf) {
+ *p = 0;
+ return sf;
+ }
+ free(sf);
+ return no_srcfile;
+}
+
+static int64_t
+sort__srcfile_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ if (!left->srcfile) {
+ if (!left->ms.map)
+ left->srcfile = no_srcfile;
+ else
+ left->srcfile = get_srcfile(left);
+ }
+ if (!right->srcfile) {
+ if (!right->ms.map)
+ right->srcfile = no_srcfile;
+ else
+ right->srcfile = get_srcfile(right);
+ }
+ return strcmp(right->srcfile, left->srcfile);
+}
+
+static int hist_entry__srcfile_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ return repsep_snprintf(bf, size, "%-*.*s", width, width, he->srcfile);
+}
+
+struct sort_entry sort_srcfile = {
+ .se_header = "Source File",
+ .se_cmp = sort__srcfile_cmp,
+ .se_snprintf = hist_entry__srcfile_snprintf,
+ .se_width_idx = HISTC_SRCFILE,
+};
+
/* --sort parent */
static int64_t
@@ -526,6 +579,29 @@ static int hist_entry__mispredict_snprintf(struct hist_entry *he, char *bf,
return repsep_snprintf(bf, size, "%-*.*s", width, width, out);
}
+static int64_t
+sort__cycles_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ return left->branch_info->flags.cycles -
+ right->branch_info->flags.cycles;
+}
+
+static int hist_entry__cycles_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ if (he->branch_info->flags.cycles == 0)
+ return repsep_snprintf(bf, size, "%-*s", width, "-");
+ return repsep_snprintf(bf, size, "%-*hd", width,
+ he->branch_info->flags.cycles);
+}
+
+struct sort_entry sort_cycles = {
+ .se_header = "Basic Block Cycles",
+ .se_cmp = sort__cycles_cmp,
+ .se_snprintf = hist_entry__cycles_snprintf,
+ .se_width_idx = HISTC_CYCLES,
+};
+
/* --sort daddr_sym */
static int64_t
sort__daddr_cmp(struct hist_entry *left, struct hist_entry *right)
@@ -1173,6 +1249,7 @@ static struct sort_dimension common_sort_dimensions[] = {
DIM(SORT_PARENT, "parent", sort_parent),
DIM(SORT_CPU, "cpu", sort_cpu),
DIM(SORT_SRCLINE, "srcline", sort_srcline),
+ DIM(SORT_SRCFILE, "srcfile", sort_srcfile),
DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight),
DIM(SORT_GLOBAL_WEIGHT, "weight", sort_global_weight),
DIM(SORT_TRANSACTION, "transaction", sort_transaction),
@@ -1190,6 +1267,7 @@ static struct sort_dimension bstack_sort_dimensions[] = {
DIM(SORT_MISPREDICT, "mispredict", sort_mispredict),
DIM(SORT_IN_TX, "in_tx", sort_in_tx),
DIM(SORT_ABORT, "abort", sort_abort),
+ DIM(SORT_CYCLES, "cycles", sort_cycles),
};
#undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index e97cd476d336..3c2a399f8f5b 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -114,6 +114,7 @@ struct hist_entry {
};
};
char *srcline;
+ char *srcfile;
struct symbol *parent;
struct rb_root sorted_chain;
struct branch_info *branch_info;
@@ -172,6 +173,7 @@ enum sort_type {
SORT_PARENT,
SORT_CPU,
SORT_SRCLINE,
+ SORT_SRCFILE,
SORT_LOCAL_WEIGHT,
SORT_GLOBAL_WEIGHT,
SORT_TRANSACTION,
@@ -185,6 +187,7 @@ enum sort_type {
SORT_MISPREDICT,
SORT_ABORT,
SORT_IN_TX,
+ SORT_CYCLES,
/* memory mode specific sort keys */
__SORT_MEMORY_MODE,
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index c93fb0c5bd0b..fc08248f08ca 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -10,6 +10,8 @@
#include "symbol.h"
+bool srcline_full_filename;
+
#ifdef HAVE_LIBBFD_SUPPORT
/*
@@ -277,7 +279,9 @@ char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
if (!addr2line(dso_name, addr, &file, &line, dso))
goto out;
- if (asprintf(&srcline, "%s:%u", basename(file), line) < 0) {
+ if (asprintf(&srcline, "%s:%u",
+ srcline_full_filename ? file : basename(file),
+ line) < 0) {
free(file);
goto out;
}
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 53e8bb7bc852..2a5d8d7698ae 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -85,7 +85,7 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
update_stats(&runtime_cycles_stats[ctx][cpu], count[0]);
else if (perf_stat_evsel__is(counter, CYCLES_IN_TX))
- update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);
+ update_stats(&runtime_cycles_in_tx_stats[ctx][cpu], count[0]);
else if (perf_stat_evsel__is(counter, TRANSACTION_START))
update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);
else if (perf_stat_evsel__is(counter, ELISION_START))
@@ -398,20 +398,18 @@ void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
" # %5.2f%% aborted cycles ",
100.0 * ((total2-avg) / total));
} else if (perf_stat_evsel__is(evsel, TRANSACTION_START) &&
- avg > 0 &&
runtime_cycles_in_tx_stats[ctx][cpu].n != 0) {
total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
- if (total)
+ if (avg)
ratio = total / avg;
fprintf(out, " # %8.0f cycles / transaction ", ratio);
} else if (perf_stat_evsel__is(evsel, ELISION_START) &&
- avg > 0 &&
runtime_cycles_in_tx_stats[ctx][cpu].n != 0) {
total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
- if (total)
+ if (avg)
ratio = total / avg;
fprintf(out, " # %8.0f cycles / elision ", ratio);
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index f2a0d1521e26..415c359de465 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -97,55 +97,6 @@ void perf_stat_evsel_id_init(struct perf_evsel *evsel)
}
}
-struct perf_counts *perf_counts__new(int ncpus, int nthreads)
-{
- struct perf_counts *counts = zalloc(sizeof(*counts));
-
- if (counts) {
- struct xyarray *values;
-
- values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
- if (!values) {
- free(counts);
- return NULL;
- }
-
- counts->values = values;
- }
-
- return counts;
-}
-
-void perf_counts__delete(struct perf_counts *counts)
-{
- if (counts) {
- xyarray__delete(counts->values);
- free(counts);
- }
-}
-
-static void perf_counts__reset(struct perf_counts *counts)
-{
- xyarray__reset(counts->values);
-}
-
-void perf_evsel__reset_counts(struct perf_evsel *evsel)
-{
- perf_counts__reset(evsel->counts);
-}
-
-int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads)
-{
- evsel->counts = perf_counts__new(ncpus, nthreads);
- return evsel->counts != NULL ? 0 : -ENOMEM;
-}
-
-void perf_evsel__free_counts(struct perf_evsel *evsel)
-{
- perf_counts__delete(evsel->counts);
- evsel->counts = NULL;
-}
-
void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
{
int i;
@@ -238,3 +189,142 @@ void perf_evlist__reset_stats(struct perf_evlist *evlist)
perf_evsel__reset_counts(evsel);
}
}
+
+static void zero_per_pkg(struct perf_evsel *counter)
+{
+ if (counter->per_pkg_mask)
+ memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
+}
+
+static int check_per_pkg(struct perf_evsel *counter, int cpu, bool *skip)
+{
+ unsigned long *mask = counter->per_pkg_mask;
+ struct cpu_map *cpus = perf_evsel__cpus(counter);
+ int s;
+
+ *skip = false;
+
+ if (!counter->per_pkg)
+ return 0;
+
+ if (cpu_map__empty(cpus))
+ return 0;
+
+ if (!mask) {
+ mask = zalloc(MAX_NR_CPUS);
+ if (!mask)
+ return -ENOMEM;
+
+ counter->per_pkg_mask = mask;
+ }
+
+ s = cpu_map__get_socket(cpus, cpu);
+ if (s < 0)
+ return -1;
+
+ *skip = test_and_set_bit(s, mask) == 1;
+ return 0;
+}
+
+static int
+process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel,
+ int cpu, int thread,
+ struct perf_counts_values *count)
+{
+ struct perf_counts_values *aggr = &evsel->counts->aggr;
+ static struct perf_counts_values zero;
+ bool skip = false;
+
+ if (check_per_pkg(evsel, cpu, &skip)) {
+ pr_err("failed to read per-pkg counter\n");
+ return -1;
+ }
+
+ if (skip)
+ count = &zero;
+
+ switch (config->aggr_mode) {
+ case AGGR_THREAD:
+ case AGGR_CORE:
+ case AGGR_SOCKET:
+ case AGGR_NONE:
+ if (!evsel->snapshot)
+ perf_evsel__compute_deltas(evsel, cpu, thread, count);
+ perf_counts_values__scale(count, config->scale, NULL);
+ if (config->aggr_mode == AGGR_NONE)
+ perf_stat__update_shadow_stats(evsel, count->values, cpu);
+ break;
+ case AGGR_GLOBAL:
+ aggr->val += count->val;
+ if (config->scale) {
+ aggr->ena += count->ena;
+ aggr->run += count->run;
+ }
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int process_counter_maps(struct perf_stat_config *config,
+ struct perf_evsel *counter)
+{
+ int nthreads = thread_map__nr(counter->threads);
+ int ncpus = perf_evsel__nr_cpus(counter);
+ int cpu, thread;
+
+ if (counter->system_wide)
+ nthreads = 1;
+
+ for (thread = 0; thread < nthreads; thread++) {
+ for (cpu = 0; cpu < ncpus; cpu++) {
+ if (process_counter_values(config, counter, cpu, thread,
+ perf_counts(counter->counts, cpu, thread)))
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+int perf_stat_process_counter(struct perf_stat_config *config,
+ struct perf_evsel *counter)
+{
+ struct perf_counts_values *aggr = &counter->counts->aggr;
+ struct perf_stat *ps = counter->priv;
+ u64 *count = counter->counts->aggr.values;
+ int i, ret;
+
+ aggr->val = aggr->ena = aggr->run = 0;
+ init_stats(ps->res_stats);
+
+ if (counter->per_pkg)
+ zero_per_pkg(counter);
+
+ ret = process_counter_maps(config, counter);
+ if (ret)
+ return ret;
+
+ if (config->aggr_mode != AGGR_GLOBAL)
+ return 0;
+
+ if (!counter->snapshot)
+ perf_evsel__compute_deltas(counter, -1, -1, aggr);
+ perf_counts_values__scale(aggr, config->scale, &counter->counts->scaled);
+
+ for (i = 0; i < 3; i++)
+ update_stats(&ps->res_stats[i], count[i]);
+
+ if (verbose) {
+ fprintf(config->output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
+ perf_evsel__name(counter), count[0], count[1], count[2]);
+ }
+
+ /*
+ * Save the full runtime - to allow normalization during printout:
+ */
+ perf_stat__update_shadow_stats(counter, count, 0);
+
+ return 0;
+}
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 1cfbe0a980ac..62448c8175d3 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -33,29 +33,13 @@ enum aggr_mode {
AGGR_THREAD,
};
-struct perf_counts_values {
- union {
- struct {
- u64 val;
- u64 ena;
- u64 run;
- };
- u64 values[3];
- };
+struct perf_stat_config {
+ enum aggr_mode aggr_mode;
+ bool scale;
+ FILE *output;
+ unsigned int interval;
};
-struct perf_counts {
- s8 scaled;
- struct perf_counts_values aggr;
- struct xyarray *values;
-};
-
-static inline struct perf_counts_values*
-perf_counts(struct perf_counts *counts, int cpu, int thread)
-{
- return xyarray__entry(counts->values, cpu, thread);
-}
-
void update_stats(struct stats *stats, u64 val);
double avg_stats(struct stats *stats);
double stddev_stats(struct stats *stats);
@@ -89,13 +73,6 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
double avg, int cpu, enum aggr_mode aggr);
-struct perf_counts *perf_counts__new(int ncpus, int nthreads);
-void perf_counts__delete(struct perf_counts *counts);
-
-void perf_evsel__reset_counts(struct perf_evsel *evsel);
-int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads);
-void perf_evsel__free_counts(struct perf_evsel *evsel);
-
void perf_evsel__reset_stat_priv(struct perf_evsel *evsel);
int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel);
void perf_evsel__free_stat_priv(struct perf_evsel *evsel);
@@ -109,4 +86,7 @@ int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw);
int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
void perf_evlist__free_stats(struct perf_evlist *evlist);
void perf_evlist__reset_stats(struct perf_evlist *evlist);
+
+int perf_stat_process_counter(struct perf_stat_config *config,
+ struct perf_evsel *counter);
#endif
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index 6afd6106ceb5..fc8781de62db 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -357,3 +357,42 @@ void *memdup(const void *src, size_t len)
return p;
}
+
+char *asprintf_expr_inout_ints(const char *var, bool in, size_t nints, int *ints)
+{
+ /*
+ * FIXME: replace this with an expression using log10() when we
+ * find a suitable implementation, maybe the one in the dvb drivers...
+ *
+ * "%s == %d || " = log10(MAXINT) * 2 + 8 chars for the operators
+ */
+ size_t size = nints * 28 + 1; /* \0 */
+ size_t i, printed = 0;
+ char *expr = malloc(size);
+
+ if (expr) {
+ const char *or_and = "||", *eq_neq = "==";
+ char *e = expr;
+
+ if (!in) {
+ or_and = "&&";
+ eq_neq = "!=";
+ }
+
+ for (i = 0; i < nints; ++i) {
+ if (printed == size)
+ goto out_err_overflow;
+
+ if (i > 0)
+ printed += snprintf(e + printed, size - printed, " %s ", or_and);
+ printed += scnprintf(e + printed, size - printed,
+ "%s %s %d", var, eq_neq, ints[i]);
+ }
+ }
+
+ return expr;
+
+out_err_overflow:
+ free(expr);
+ return NULL;
+}
diff --git a/tools/perf/util/strlist.c b/tools/perf/util/strlist.c
index 71f9d102b96f..bdf98f6f27bb 100644
--- a/tools/perf/util/strlist.c
+++ b/tools/perf/util/strlist.c
@@ -72,7 +72,7 @@ int strlist__load(struct strlist *slist, const char *filename)
FILE *fp = fopen(filename, "r");
if (fp == NULL)
- return errno;
+ return -errno;
while (fgets(entry, sizeof(entry), fp) != NULL) {
const size_t len = strlen(entry);
@@ -108,43 +108,70 @@ struct str_node *strlist__find(struct strlist *slist, const char *entry)
return snode;
}
-static int strlist__parse_list_entry(struct strlist *slist, const char *s)
+static int strlist__parse_list_entry(struct strlist *slist, const char *s,
+ const char *subst_dir)
{
+ int err;
+ char *subst = NULL;
+
if (strncmp(s, "file://", 7) == 0)
return strlist__load(slist, s + 7);
- return strlist__add(slist, s);
+ if (subst_dir) {
+ err = -ENOMEM;
+ if (asprintf(&subst, "%s/%s", subst_dir, s) < 0)
+ goto out;
+
+ if (access(subst, F_OK) == 0) {
+ err = strlist__load(slist, subst);
+ goto out;
+ }
+ }
+
+ err = strlist__add(slist, s);
+out:
+ free(subst);
+ return err;
}
-int strlist__parse_list(struct strlist *slist, const char *s)
+static int strlist__parse_list(struct strlist *slist, const char *s, const char *subst_dir)
{
char *sep;
int err;
while ((sep = strchr(s, ',')) != NULL) {
*sep = '\0';
- err = strlist__parse_list_entry(slist, s);
+ err = strlist__parse_list_entry(slist, s, subst_dir);
*sep = ',';
if (err != 0)
return err;
s = sep + 1;
}
- return *s ? strlist__parse_list_entry(slist, s) : 0;
+ return *s ? strlist__parse_list_entry(slist, s, subst_dir) : 0;
}
-struct strlist *strlist__new(bool dupstr, const char *list)
+struct strlist *strlist__new(const char *list, const struct strlist_config *config)
{
struct strlist *slist = malloc(sizeof(*slist));
if (slist != NULL) {
+ bool dupstr = true;
+ const char *dirname = NULL;
+
+ if (config) {
+ dupstr = !config->dont_dupstr;
+ dirname = config->dirname;
+ }
+
rblist__init(&slist->rblist);
slist->rblist.node_cmp = strlist__node_cmp;
slist->rblist.node_new = strlist__node_new;
slist->rblist.node_delete = strlist__node_delete;
slist->dupstr = dupstr;
- if (list && strlist__parse_list(slist, list) != 0)
+
+ if (list && strlist__parse_list(slist, list, dirname) != 0)
goto out_error;
}
diff --git a/tools/perf/util/strlist.h b/tools/perf/util/strlist.h
index 5c7f87069d9c..297565aa7535 100644
--- a/tools/perf/util/strlist.h
+++ b/tools/perf/util/strlist.h
@@ -16,7 +16,12 @@ struct strlist {
bool dupstr;
};
-struct strlist *strlist__new(bool dupstr, const char *slist);
+struct strlist_config {
+ bool dont_dupstr;
+ const char *dirname;
+};
+
+struct strlist *strlist__new(const char *slist, const struct strlist_config *config);
void strlist__delete(struct strlist *slist);
void strlist__remove(struct strlist *slist, struct str_node *sn);
@@ -74,6 +79,4 @@ static inline struct str_node *strlist__next(struct str_node *sn)
#define strlist__for_each_safe(pos, n, slist) \
for (pos = strlist__first(slist), n = strlist__next(pos); pos;\
pos = n, n = strlist__next(n))
-
-int strlist__parse_list(struct strlist *slist, const char *s);
#endif /* __PERF_STRLIST_H */
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 65f7e389ae09..53bb5f59ec58 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -38,7 +38,7 @@ static inline char *bfd_demangle(void __maybe_unused *v,
#endif
#ifndef HAVE_ELF_GETPHDRNUM_SUPPORT
-static int elf_getphdrnum(Elf *elf, size_t *dst)
+int elf_getphdrnum(Elf *elf, size_t *dst)
{
GElf_Ehdr gehdr;
GElf_Ehdr *ehdr;
@@ -875,6 +875,17 @@ int dso__load_sym(struct dso *dso, struct map *map,
}
}
+ /*
+ * Handle any relocation of vdso necessary because older kernels
+ * attempted to prelink vdso to its virtual address.
+ */
+ if (dso__is_vdso(dso)) {
+ GElf_Shdr tshdr;
+
+ if (elf_section_by_name(elf, &ehdr, &tshdr, ".text", NULL))
+ map->reloc = map->start - tshdr.sh_addr + tshdr.sh_offset;
+ }
+
dso->adjust_symbols = runtime_ss->adjust_symbols || ref_reloc(kmap);
/*
* Initial kernel and module mappings do not map to the dso. For
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 60f11414bb5c..1f97ffb158a6 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -441,10 +441,25 @@ static struct symbol *symbols__find_by_name(struct rb_root *symbols,
return &s->sym;
}
+void dso__reset_find_symbol_cache(struct dso *dso)
+{
+ enum map_type type;
+
+ for (type = MAP__FUNCTION; type <= MAP__VARIABLE; ++type) {
+ dso->last_find_result[type].addr = 0;
+ dso->last_find_result[type].symbol = NULL;
+ }
+}
+
struct symbol *dso__find_symbol(struct dso *dso,
enum map_type type, u64 addr)
{
- return symbols__find(&dso->symbols[type], addr);
+ if (dso->last_find_result[type].addr != addr) {
+ dso->last_find_result[type].addr = addr;
+ dso->last_find_result[type].symbol = symbols__find(&dso->symbols[type], addr);
+ }
+
+ return dso->last_find_result[type].symbol;
}
struct symbol *dso__first_symbol(struct dso *dso, enum map_type type)
@@ -1133,8 +1148,8 @@ static int dso__load_kcore(struct dso *dso, struct map *map,
fd = open(kcore_filename, O_RDONLY);
if (fd < 0) {
- pr_err("%s requires CAP_SYS_RAWIO capability to access.\n",
- kcore_filename);
+ pr_debug("Failed to open %s. Note /proc/kcore requires CAP_SYS_RAWIO capability to access.\n",
+ kcore_filename);
return -EINVAL;
}
@@ -1838,7 +1853,7 @@ static void vmlinux_path__exit(void)
zfree(&vmlinux_path);
}
-static int vmlinux_path__init(struct perf_session_env *env)
+static int vmlinux_path__init(struct perf_env *env)
{
struct utsname uts;
char bf[PATH_MAX];
@@ -1906,7 +1921,7 @@ int setup_list(struct strlist **list, const char *list_str,
if (list_str == NULL)
return 0;
- *list = strlist__new(true, list_str);
+ *list = strlist__new(list_str, NULL);
if (!*list) {
pr_err("problems parsing %s list\n", list_name);
return -1;
@@ -1949,7 +1964,7 @@ static bool symbol__read_kptr_restrict(void)
return value;
}
-int symbol__init(struct perf_session_env *env)
+int symbol__init(struct perf_env *env)
{
const char *symfs;
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index b98ce51af142..440ba8ae888f 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -106,7 +106,8 @@ struct symbol_conf {
filter_relative,
show_hist_headers,
branch_callstack,
- has_filter;
+ has_filter,
+ show_ref_callgraph;
const char *vmlinux_name,
*kallsyms_name,
*source_prefix,
@@ -251,8 +252,8 @@ int modules__parse(const char *filename, void *arg,
int filename__read_debuglink(const char *filename, char *debuglink,
size_t size);
-struct perf_session_env;
-int symbol__init(struct perf_session_env *env);
+struct perf_env;
+int symbol__init(struct perf_env *env);
void symbol__exit(void);
void symbol__elf_init(void);
struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 28c4b746baa1..0a9ae8014729 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -191,6 +191,12 @@ static int thread__clone_map_groups(struct thread *thread,
if (thread->pid_ == parent->pid_)
return 0;
+ if (thread->mg == parent->mg) {
+ pr_debug("broken map groups on thread %d/%d parent %d/%d\n",
+ thread->pid_, thread->tid, parent->pid_, parent->tid);
+ return 0;
+ }
+
/* But this one is new process, copy maps. */
for (i = 0; i < MAP__NR_TYPES; ++i)
if (map_groups__clone(thread->mg, parent->mg, i) < 0)
diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index 292ae2c90e06..6ec3c5ca438f 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -195,7 +195,8 @@ static struct thread_map *thread_map__new_by_pid_str(const char *pid_str)
pid_t pid, prev_pid = INT_MAX;
char *end_ptr;
struct str_node *pos;
- struct strlist *slist = strlist__new(false, pid_str);
+ struct strlist_config slist_config = { .dont_dupstr = true, };
+ struct strlist *slist = strlist__new(pid_str, &slist_config);
if (!slist)
return NULL;
@@ -265,13 +266,14 @@ static struct thread_map *thread_map__new_by_tid_str(const char *tid_str)
pid_t tid, prev_tid = INT_MAX;
char *end_ptr;
struct str_node *pos;
+ struct strlist_config slist_config = { .dont_dupstr = true, };
struct strlist *slist;
/* perf-stat expects threads to be generated even if tid not given */
if (!tid_str)
return thread_map__new_dummy();
- slist = strlist__new(false, tid_str);
+ slist = strlist__new(tid_str, &slist_config);
if (!slist)
return NULL;
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index c307dd438286..cab8cc24831b 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -46,6 +46,7 @@ struct perf_tool {
lost_samples,
aux,
itrace_start,
+ context_switch,
throttle,
unthrottle;
event_attr_op attr;
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index eb72716017ac..22245986e59e 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -341,20 +341,14 @@ out:
static int record_proc_kallsyms(void)
{
- unsigned int size;
- const char *path = "/proc/kallsyms";
- struct stat st;
- int ret, err = 0;
-
- ret = stat(path, &st);
- if (ret < 0) {
- /* not found */
- size = 0;
- if (write(output_fd, &size, 4) != 4)
- err = -EIO;
- return err;
- }
- return record_file(path, 4);
+ unsigned long long size = 0;
+ /*
+ * Just to keep older perf.data file parsers happy, record a zero
+ * sized kallsyms file, i.e. do the same thing that was done when
+ * /proc/kallsyms (or something specified via --kallsyms, in a
+ * different path) couldn't be read.
+ */
+ return write(output_fd, &size, 4) != 4 ? -EIO : 0;
}
static int record_ftrace_printk(void)
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index d4957418657e..8ff7d620d942 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -135,36 +135,6 @@ void event_format__print(struct event_format *event,
return event_format__fprintf(event, cpu, data, size, stdout);
}
-void parse_proc_kallsyms(struct pevent *pevent,
- char *file, unsigned int size __maybe_unused)
-{
- unsigned long long addr;
- char *func;
- char *line;
- char *next = NULL;
- char *addr_str;
- char *mod;
- char *fmt = NULL;
-
- line = strtok_r(file, "\n", &next);
- while (line) {
- mod = NULL;
- addr_str = strtok_r(line, " ", &fmt);
- addr = strtoull(addr_str, NULL, 16);
- /* skip character */
- strtok_r(NULL, " ", &fmt);
- func = strtok_r(NULL, "\t", &fmt);
- mod = strtok_r(NULL, "]", &fmt);
- /* truncate the extra '[' */
- if (mod)
- mod = mod + 1;
-
- pevent_register_function(pevent, func, addr, mod);
-
- line = strtok_r(NULL, "\n", &next);
- }
-}
-
void parse_ftrace_printk(struct pevent *pevent,
char *file, unsigned int size __maybe_unused)
{
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 54d9e9b548a8..b67a0ccf5ab9 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -162,25 +162,23 @@ out:
static int read_proc_kallsyms(struct pevent *pevent)
{
unsigned int size;
- char *buf;
size = read4(pevent);
if (!size)
return 0;
-
- buf = malloc(size + 1);
- if (buf == NULL)
- return -1;
-
- if (do_read(buf, size) < 0) {
- free(buf);
- return -1;
- }
- buf[size] = '\0';
-
- parse_proc_kallsyms(pevent, buf, size);
-
- free(buf);
+ /*
+ * Just skip it, now that we configure libtraceevent to use the
+ * tools/perf/ symbol resolver.
+ *
+ * We need to skip it so that we can continue parsing old perf.data
+ * files, that contains this /proc/kallsyms payload.
+ *
+ * Newer perf.data files will have just the 4-bytes zeros "kallsyms
+ * payload", so that older tools can continue reading it and interpret
+ * it as "no kallsyms payload is present".
+ */
+ lseek(input_fd, size, SEEK_CUR);
+ trace_data_size += size;
return 0;
}
diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c
index 6322d37164c5..b90e646c7a91 100644
--- a/tools/perf/util/trace-event.c
+++ b/tools/perf/util/trace-event.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <traceevent/event-parse.h>
#include "trace-event.h"
+#include "machine.h"
#include "util.h"
/*
@@ -19,6 +20,7 @@
* there.
*/
static struct trace_event tevent;
+static bool tevent_initialized;
int trace_event__init(struct trace_event *t)
{
@@ -32,6 +34,31 @@ int trace_event__init(struct trace_event *t)
return pevent ? 0 : -1;
}
+static int trace_event__init2(void)
+{
+ int be = traceevent_host_bigendian();
+ struct pevent *pevent;
+
+ if (trace_event__init(&tevent))
+ return -1;
+
+ pevent = tevent.pevent;
+ pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
+ pevent_set_file_bigendian(pevent, be);
+ pevent_set_host_bigendian(pevent, be);
+ tevent_initialized = true;
+ return 0;
+}
+
+int trace_event__register_resolver(struct machine *machine,
+ pevent_func_resolver_t *func)
+{
+ if (!tevent_initialized && trace_event__init2())
+ return -1;
+
+ return pevent_set_function_resolver(tevent.pevent, func, machine);
+}
+
void trace_event__cleanup(struct trace_event *t)
{
traceevent_unload_plugins(t->plugin_list, t->pevent);
@@ -62,21 +89,8 @@ tp_format(const char *sys, const char *name)
struct event_format*
trace_event__tp_format(const char *sys, const char *name)
{
- static bool initialized;
-
- if (!initialized) {
- int be = traceevent_host_bigendian();
- struct pevent *pevent;
-
- if (trace_event__init(&tevent))
- return NULL;
-
- pevent = tevent.pevent;
- pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
- pevent_set_file_bigendian(pevent, be);
- pevent_set_host_bigendian(pevent, be);
- initialized = true;
- }
+ if (!tevent_initialized && trace_event__init2())
+ return NULL;
return tp_format(sys, name);
}
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index d5168f0be4ec..da6cc4cc2a4f 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -18,6 +18,8 @@ struct trace_event {
int trace_event__init(struct trace_event *t);
void trace_event__cleanup(struct trace_event *t);
+int trace_event__register_resolver(struct machine *machine,
+ pevent_func_resolver_t *func);
struct event_format*
trace_event__tp_format(const char *sys, const char *name);
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index edc2d633b332..7acafb3c5592 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -34,6 +34,7 @@ bool test_attr__enabled;
bool perf_host = true;
bool perf_guest = false;
+char tracing_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing";
char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events";
void event_attr_init(struct perf_event_attr *attr)
@@ -391,6 +392,8 @@ void set_term_quiet_input(struct termios *old)
static void set_tracing_events_path(const char *tracing, const char *mountpoint)
{
+ snprintf(tracing_path, sizeof(tracing_path), "%s/%s",
+ mountpoint, tracing);
snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s%s",
mountpoint, tracing, "events");
}
@@ -436,66 +439,14 @@ const char *perf_debugfs_mount(const char *mountpoint)
void perf_debugfs_set_path(const char *mntpt)
{
- snprintf(debugfs_mountpoint, strlen(debugfs_mountpoint), "%s", mntpt);
set_tracing_events_path("tracing/", mntpt);
}
-static const char *find_tracefs(void)
-{
- const char *path = __perf_tracefs_mount(NULL);
-
- return path;
-}
-
-static const char *find_debugfs(void)
-{
- const char *path = __perf_debugfs_mount(NULL);
-
- if (!path)
- fprintf(stderr, "Your kernel does not support the debugfs filesystem");
-
- return path;
-}
-
-/*
- * Finds the path to the debugfs/tracing
- * Allocates the string and stores it.
- */
-const char *find_tracing_dir(void)
-{
- const char *tracing_dir = "";
- static char *tracing;
- static int tracing_found;
- const char *debugfs;
-
- if (tracing_found)
- return tracing;
-
- debugfs = find_tracefs();
- if (!debugfs) {
- tracing_dir = "/tracing";
- debugfs = find_debugfs();
- if (!debugfs)
- return NULL;
- }
-
- if (asprintf(&tracing, "%s%s", debugfs, tracing_dir) < 0)
- return NULL;
-
- tracing_found = 1;
- return tracing;
-}
-
char *get_tracing_file(const char *name)
{
- const char *tracing;
char *file;
- tracing = find_tracing_dir();
- if (!tracing)
- return NULL;
-
- if (asprintf(&file, "%s/%s", tracing, name) < 0)
+ if (asprintf(&file, "%s/%s", tracing_path, name) < 0)
return NULL;
return file;
@@ -566,6 +517,96 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
return (unsigned long) -1;
}
+int get_stack_size(const char *str, unsigned long *_size)
+{
+ char *endptr;
+ unsigned long size;
+ unsigned long max_size = round_down(USHRT_MAX, sizeof(u64));
+
+ size = strtoul(str, &endptr, 0);
+
+ do {
+ if (*endptr)
+ break;
+
+ size = round_up(size, sizeof(u64));
+ if (!size || size > max_size)
+ break;
+
+ *_size = size;
+ return 0;
+
+ } while (0);
+
+ pr_err("callchain: Incorrect stack dump size (max %ld): %s\n",
+ max_size, str);
+ return -1;
+}
+
+int parse_callchain_record(const char *arg, struct callchain_param *param)
+{
+ char *tok, *name, *saveptr = NULL;
+ char *buf;
+ int ret = -1;
+
+ /* We need buffer that we know we can write to. */
+ buf = malloc(strlen(arg) + 1);
+ if (!buf)
+ return -ENOMEM;
+
+ strcpy(buf, arg);
+
+ tok = strtok_r((char *)buf, ",", &saveptr);
+ name = tok ? : (char *)buf;
+
+ do {
+ /* Framepointer style */
+ if (!strncmp(name, "fp", sizeof("fp"))) {
+ if (!strtok_r(NULL, ",", &saveptr)) {
+ param->record_mode = CALLCHAIN_FP;
+ ret = 0;
+ } else
+ pr_err("callchain: No more arguments "
+ "needed for --call-graph fp\n");
+ break;
+
+#ifdef HAVE_DWARF_UNWIND_SUPPORT
+ /* Dwarf style */
+ } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
+ const unsigned long default_stack_dump_size = 8192;
+
+ ret = 0;
+ param->record_mode = CALLCHAIN_DWARF;
+ param->dump_size = default_stack_dump_size;
+
+ tok = strtok_r(NULL, ",", &saveptr);
+ if (tok) {
+ unsigned long size = 0;
+
+ ret = get_stack_size(tok, &size);
+ param->dump_size = size;
+ }
+#endif /* HAVE_DWARF_UNWIND_SUPPORT */
+ } else if (!strncmp(name, "lbr", sizeof("lbr"))) {
+ if (!strtok_r(NULL, ",", &saveptr)) {
+ param->record_mode = CALLCHAIN_LBR;
+ ret = 0;
+ } else
+ pr_err("callchain: No more arguments "
+ "needed for --call-graph lbr\n");
+ break;
+ } else {
+ pr_err("callchain: Unknown --call-graph option "
+ "value: %s\n", arg);
+ break;
+ }
+
+ } while (0);
+
+ free(buf);
+ return ret;
+}
+
int filename__read_str(const char *filename, char **buf, size_t *sizep)
{
size_t size = 0, alloc_size = 0;
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 8bce58b47a82..291be1d84bc3 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -83,10 +83,10 @@
extern const char *graph_line;
extern const char *graph_dotted_line;
extern char buildid_dir[];
+extern char tracing_path[];
extern char tracing_events_path[];
extern void perf_debugfs_set_path(const char *mountpoint);
const char *perf_debugfs_mount(const char *mountpoint);
-const char *find_tracing_dir(void);
char *get_tracing_file(const char *name);
void put_tracing_file(char *file);
@@ -318,6 +318,7 @@ static inline int path__join3(char *bf, size_t size,
struct dso;
struct symbol;
+extern bool srcline_full_filename;
char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
bool show_sym);
void free_srcline(char *srcline);
@@ -339,4 +340,18 @@ int gzip_decompress_to_file(const char *input, int output_fd);
int lzma_decompress_to_file(const char *input, int output_fd);
#endif
+char *asprintf_expr_inout_ints(const char *var, bool in, size_t nints, int *ints);
+
+static inline char *asprintf_expr_in_ints(const char *var, size_t nints, int *ints)
+{
+ return asprintf_expr_inout_ints(var, true, nints, ints);
+}
+
+static inline char *asprintf_expr_not_in_ints(const char *var, size_t nints, int *ints)
+{
+ return asprintf_expr_inout_ints(var, false, nints, ints);
+}
+
+int get_stack_size(const char *str, unsigned long *_size);
+
#endif /* GIT_COMPAT_UTIL_H */

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