aboutsummaryrefslogtreecommitdiffstats
path: root/tools
diff options
context:
space:
mode:
authorChris Zankel <chris@zankel.net>2015-08-29 23:55:58 +0000
committerChris Zankel <chris@zankel.net>2015-08-29 23:55:58 +0000
commit650c919798c71fb34b77a6f2ba03a06907f06a76 (patch)
treed1c60012d4d86846d25f1d0b783b5122c26a2e31 /tools
parent895fb3159280fe7695b35ec7c87ec19e13ca5b6e (diff)
parent64291f7db5bd8150a74ad2036f1037e6a0428df2 (diff)
Merge tag 'v4.2' into for_next
Linux 4.2
Diffstat (limited to 'tools')
-rw-r--r--tools/lib/api/Makefile2
-rw-r--r--tools/lib/hweight.c62
-rw-r--r--tools/lib/traceevent/Makefile2
-rw-r--r--tools/perf/MANIFEST2
-rw-r--r--tools/perf/Makefile.perf19
-rw-r--r--tools/perf/builtin-record.c11
-rw-r--r--tools/perf/builtin-stat.c4
-rw-r--r--tools/perf/builtin-top.c4
-rw-r--r--tools/perf/config/Makefile2
-rw-r--r--tools/perf/ui/browsers/hists.c2
-rw-r--r--tools/perf/util/Build2
-rw-r--r--tools/perf/util/auxtrace.c10
-rw-r--r--tools/perf/util/machine.c20
-rw-r--r--tools/perf/util/python-ext-sources4
-rw-r--r--tools/perf/util/stat-shadow.c8
-rw-r--r--tools/perf/util/symbol.c2
-rw-r--r--tools/perf/util/symbol.h3
-rw-r--r--tools/perf/util/thread.c6
-rw-r--r--tools/perf/util/thread_map.c3
-rw-r--r--tools/perf/util/vdso.c8
-rw-r--r--tools/testing/selftests/futex/functional/futex_requeue_pi_signal_restart.c2
21 files changed, 142 insertions, 36 deletions
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index 8bd960658463..fe1b02c2c95b 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -36,7 +36,7 @@ $(LIBFILE): $(API_IN)
clean:
$(call QUIET_CLEAN, libapi) $(RM) $(LIBFILE); \
- find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
+ find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
FORCE:
diff --git a/tools/lib/hweight.c b/tools/lib/hweight.c
new file mode 100644
index 000000000000..0b859b884339
--- /dev/null
+++ b/tools/lib/hweight.c
@@ -0,0 +1,62 @@
+#include <linux/bitops.h>
+#include <asm/types.h>
+
+/**
+ * hweightN - returns the hamming weight of a N-bit word
+ * @x: the word to weigh
+ *
+ * The Hamming Weight of a number is the total number of bits set in it.
+ */
+
+unsigned int __sw_hweight32(unsigned int w)
+{
+#ifdef CONFIG_ARCH_HAS_FAST_MULTIPLIER
+ w -= (w >> 1) & 0x55555555;
+ w = (w & 0x33333333) + ((w >> 2) & 0x33333333);
+ w = (w + (w >> 4)) & 0x0f0f0f0f;
+ return (w * 0x01010101) >> 24;
+#else
+ unsigned int res = w - ((w >> 1) & 0x55555555);
+ res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
+ res = (res + (res >> 4)) & 0x0F0F0F0F;
+ res = res + (res >> 8);
+ return (res + (res >> 16)) & 0x000000FF;
+#endif
+}
+
+unsigned int __sw_hweight16(unsigned int w)
+{
+ unsigned int res = w - ((w >> 1) & 0x5555);
+ res = (res & 0x3333) + ((res >> 2) & 0x3333);
+ res = (res + (res >> 4)) & 0x0F0F;
+ return (res + (res >> 8)) & 0x00FF;
+}
+
+unsigned int __sw_hweight8(unsigned int w)
+{
+ unsigned int res = w - ((w >> 1) & 0x55);
+ res = (res & 0x33) + ((res >> 2) & 0x33);
+ return (res + (res >> 4)) & 0x0F;
+}
+
+unsigned long __sw_hweight64(__u64 w)
+{
+#if BITS_PER_LONG == 32
+ return __sw_hweight32((unsigned int)(w >> 32)) +
+ __sw_hweight32((unsigned int)w);
+#elif BITS_PER_LONG == 64
+#ifdef CONFIG_ARCH_HAS_FAST_MULTIPLIER
+ w -= (w >> 1) & 0x5555555555555555ul;
+ w = (w & 0x3333333333333333ul) + ((w >> 2) & 0x3333333333333333ul);
+ w = (w + (w >> 4)) & 0x0f0f0f0f0f0f0f0ful;
+ return (w * 0x0101010101010101ul) >> 56;
+#else
+ __u64 res = w - ((w >> 1) & 0x5555555555555555ul);
+ res = (res & 0x3333333333333333ul) + ((res >> 2) & 0x3333333333333333ul);
+ res = (res + (res >> 4)) & 0x0F0F0F0F0F0F0F0Ful;
+ res = res + (res >> 8);
+ res = res + (res >> 16);
+ return (res + (res >> 32)) & 0x00000000000000FFul;
+#endif
+#endif
+}
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 6daaff652aff..7851df1490e0 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -268,7 +268,7 @@ install: install_lib
clean:
$(call QUIET_CLEAN, libtraceevent) \
- $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \
+ $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \
$(RM) TRACEEVENT-CFLAGS tags TAGS
PHONY += force plugins
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 09dc0aabb515..d01a0aad5a01 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -18,6 +18,7 @@ tools/arch/x86/include/asm/atomic.h
tools/arch/x86/include/asm/rmwcc.h
tools/lib/traceevent
tools/lib/api
+tools/lib/hweight.c
tools/lib/rbtree.c
tools/lib/symbol/kallsyms.c
tools/lib/symbol/kallsyms.h
@@ -57,7 +58,6 @@ include/linux/perf_event.h
include/linux/list.h
include/linux/hash.h
include/linux/stringify.h
-lib/hweight.c
include/linux/swab.h
arch/*/include/asm/unistd*.h
arch/*/include/uapi/asm/unistd*.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 7a4b549214e3..bba34636b733 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -109,9 +109,22 @@ $(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
$(Q)$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
$(Q)touch $(OUTPUT)PERF-VERSION-FILE
-CC = $(CROSS_COMPILE)gcc
-LD ?= $(CROSS_COMPILE)ld
-AR = $(CROSS_COMPILE)ar
+# Makefiles suck: This macro sets a default value of $(2) for the
+# variable named by $(1), unless the variable has been set by
+# environment or command line. This is necessary for CC and AR
+# because make sets default values, so the simpler ?= approach
+# won't work as expected.
+define allow-override
+ $(if $(or $(findstring environment,$(origin $(1))),\
+ $(findstring command line,$(origin $(1)))),,\
+ $(eval $(1) = $(2)))
+endef
+
+# Allow setting CC and AR and LD, or setting CROSS_COMPILE as a prefix.
+$(call allow-override,CC,$(CROSS_COMPILE)gcc)
+$(call allow-override,AR,$(CROSS_COMPILE)ar)
+$(call allow-override,LD,$(CROSS_COMPILE)ld)
+
PKG_CONFIG = $(CROSS_COMPILE)pkg-config
RM = rm -f
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index de165a1b9240..20b56eb987f8 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -521,6 +521,15 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
goto out_child;
}
+ /*
+ * Normally perf_session__new would do this, but it doesn't have the
+ * evlist.
+ */
+ if (rec->tool.ordered_events && !perf_evlist__sample_id_all(rec->evlist)) {
+ pr_warning("WARNING: No sample_id_all support, falling back to unordered processing\n");
+ rec->tool.ordered_events = false;
+ }
+
if (!rec->evlist->nr_groups)
perf_header__clear_feat(&session->header, HEADER_GROUP_DESC);
@@ -965,9 +974,11 @@ static struct record record = {
.tool = {
.sample = process_sample_event,
.fork = perf_event__process_fork,
+ .exit = perf_event__process_exit,
.comm = perf_event__process_comm,
.mmap = perf_event__process_mmap,
.mmap2 = perf_event__process_mmap2,
+ .ordered_events = true,
},
};
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 37e301a32f43..d99d850e1444 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -343,7 +343,7 @@ static int read_counter(struct perf_evsel *counter)
return 0;
}
-static void read_counters(bool close)
+static void read_counters(bool close_counters)
{
struct perf_evsel *counter;
@@ -354,7 +354,7 @@ static void read_counters(bool close)
if (process_counter(counter))
pr_warning("failed to process counter %s\n", counter->name);
- if (close) {
+ if (close_counters) {
perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
thread_map__nr(evsel_list->threads));
}
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index ecf319728f25..6135cc07213c 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -601,8 +601,8 @@ static void display_sig(int sig __maybe_unused)
static void display_setup_sig(void)
{
- signal(SIGSEGV, display_sig);
- signal(SIGFPE, display_sig);
+ signal(SIGSEGV, sighandler_dump_stack);
+ signal(SIGFPE, sighandler_dump_stack);
signal(SIGINT, display_sig);
signal(SIGQUIT, display_sig);
signal(SIGTERM, display_sig);
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 094ddaee104c..d31fac19c30b 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -638,7 +638,7 @@ ifndef DESTDIR
prefix ?= $(HOME)
endif
bindir_relative = bin
-bindir = $(prefix)/$(bindir_relative)
+bindir = $(abspath $(prefix)/$(bindir_relative))
mandir = share/man
infodir = share/info
perfexecdir = libexec/perf-core
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 7629bef2fd79..fa67613976a8 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -48,7 +48,7 @@ static struct rb_node *hists__filter_entries(struct rb_node *nd,
static bool hist_browser__has_filter(struct hist_browser *hb)
{
- return hists__has_filter(hb->hists) || hb->min_pcnt;
+ return hists__has_filter(hb->hists) || hb->min_pcnt || symbol_conf.has_filter;
}
static int hist_browser__get_folding(struct hist_browser *browser)
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 601d11440596..d2d318c59b37 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -143,6 +143,6 @@ $(OUTPUT)util/rbtree.o: ../lib/rbtree.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
-$(OUTPUT)util/hweight.o: ../../lib/hweight.c FORCE
+$(OUTPUT)util/hweight.o: ../lib/hweight.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 7e7405c9b936..83d9dd96fe08 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -53,11 +53,6 @@ int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
{
struct perf_event_mmap_page *pc = userpg;
-#if BITS_PER_LONG != 64 && !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
- pr_err("Cannot use AUX area tracing mmaps\n");
- return -1;
-#endif
-
WARN_ONCE(mm->base, "Uninitialized auxtrace_mmap\n");
mm->userpg = userpg;
@@ -73,6 +68,11 @@ int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
return 0;
}
+#if BITS_PER_LONG != 64 && !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
+ pr_err("Cannot use AUX area tracing mmaps\n");
+ return -1;
+#endif
+
pc->aux_offset = mp->offset;
pc->aux_size = mp->len;
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 7ff682770fdb..f1a4c833121e 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1387,6 +1387,24 @@ 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 +1413,6 @@ 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) {
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index e23ded40c79e..0766d98c5da5 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -10,7 +10,7 @@ util/ctype.c
util/evlist.c
util/evsel.c
util/cpumap.c
-../../lib/hweight.c
+../lib/hweight.c
util/thread_map.c
util/util.c
util/xyarray.c
@@ -19,5 +19,5 @@ util/rblist.c
util/stat.c
util/strlist.c
util/trace-event.c
-../../lib/rbtree.c
+../lib/rbtree.c
util/string.c
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/symbol.c b/tools/perf/util/symbol.c
index 48b588c6951a..60f11414bb5c 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1911,6 +1911,8 @@ int setup_list(struct strlist **list, const char *list_str,
pr_err("problems parsing %s list\n", list_name);
return -1;
}
+
+ symbol_conf.has_filter = true;
return 0;
}
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index bef47ead1d9b..b98ce51af142 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -105,7 +105,8 @@ struct symbol_conf {
demangle_kernel,
filter_relative,
show_hist_headers,
- branch_callstack;
+ branch_callstack,
+ has_filter;
const char *vmlinux_name,
*kallsyms_name,
*source_prefix,
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 da7646d767fe..292ae2c90e06 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -136,8 +136,7 @@ struct thread_map *thread_map__new_by_uid(uid_t uid)
if (grow) {
struct thread_map *tmp;
- tmp = realloc(threads, (sizeof(*threads) +
- max_threads * sizeof(pid_t)));
+ tmp = thread_map__realloc(threads, max_threads);
if (tmp == NULL)
goto out_free_namelist;
diff --git a/tools/perf/util/vdso.c b/tools/perf/util/vdso.c
index 4b89118f158d..44d440da15dc 100644
--- a/tools/perf/util/vdso.c
+++ b/tools/perf/util/vdso.c
@@ -236,18 +236,16 @@ static struct dso *__machine__findnew_compat(struct machine *machine,
const char *file_name;
struct dso *dso;
- pthread_rwlock_wrlock(&machine->dsos.lock);
dso = __dsos__find(&machine->dsos, vdso_file->dso_name, true);
if (dso)
- goto out_unlock;
+ goto out;
file_name = vdso__get_compat_file(vdso_file);
if (!file_name)
- goto out_unlock;
+ goto out;
dso = __machine__addnew_vdso(machine, vdso_file->dso_name, file_name);
-out_unlock:
- pthread_rwlock_unlock(&machine->dsos.lock);
+out:
return dso;
}
diff --git a/tools/testing/selftests/futex/functional/futex_requeue_pi_signal_restart.c b/tools/testing/selftests/futex/functional/futex_requeue_pi_signal_restart.c
index 7f0c756993af..3d7dc6afc3f8 100644
--- a/tools/testing/selftests/futex/functional/futex_requeue_pi_signal_restart.c
+++ b/tools/testing/selftests/futex/functional/futex_requeue_pi_signal_restart.c
@@ -191,7 +191,7 @@ int main(int argc, char *argv[])
if (res > 0) {
atomic_set(&requeued, 1);
break;
- } else if (res > 0) {
+ } else if (res < 0) {
error("FUTEX_CMP_REQUEUE_PI failed\n", errno);
ret = RET_ERROR;
break;

Privacy Policy