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authorDon Zickus <dzickus@redhat.com>2014-05-19 15:13:49 -0400
committerJiri Olsa <jolsa@kernel.org>2014-06-09 13:34:45 +0200
commit7ef807034ef33f8afe33fa7957c73954e8e4f89c (patch)
treee463ee2fc5566d80059985587b60d8ffcbdc5aa7 /tools
parentf972eb63b1003fae68d7b7e9b674d4ba5db681c2 (diff)
perf tools: Update mmap2 interface with protection and flag bits
The kernel piece passes more info now. Update the perf tool to reflect that and adjust the synthesized maps to play along. Signed-off-by: Don Zickus <dzickus@redhat.com> Link: http://lkml.kernel.org/r/1400526833-141779-4-git-send-email-dzickus@redhat.com Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/event.c23
-rw-r--r--tools/perf/util/event.h2
-rw-r--r--tools/perf/util/machine.c4
-rw-r--r--tools/perf/util/map.c4
-rw-r--r--tools/perf/util/map.h4
5 files changed, 32 insertions, 5 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 65795b835b39..ce43cbae3bd5 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1,4 +1,5 @@
#include <linux/types.h>
+#include <sys/mman.h>
#include "event.h"
#include "debug.h"
#include "hist.h"
@@ -212,6 +213,21 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool,
else
event->header.misc = PERF_RECORD_MISC_GUEST_USER;
+ /* map protection and flags bits */
+ event->mmap2.prot = 0;
+ event->mmap2.flags = 0;
+ if (prot[0] == 'r')
+ event->mmap2.prot |= PROT_READ;
+ if (prot[1] == 'w')
+ event->mmap2.prot |= PROT_WRITE;
+ if (prot[2] == 'x')
+ event->mmap2.prot |= PROT_EXEC;
+
+ if (prot[3] == 's')
+ event->mmap2.flags |= MAP_SHARED;
+ else
+ event->mmap2.flags |= MAP_PRIVATE;
+
if (prot[2] != 'x') {
if (!mmap_data || prot[0] != 'r')
continue;
@@ -612,12 +628,15 @@ size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
{
return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64
- " %02x:%02x %"PRIu64" %"PRIu64"]: %c %s\n",
+ " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n",
event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
event->mmap2.min, event->mmap2.ino,
event->mmap2.ino_generation,
- (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
+ (event->mmap2.prot & PROT_READ) ? 'r' : '-',
+ (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
+ (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
+ (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
event->mmap2.filename);
}
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index d970232cb270..9ba2eb3bdcfd 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -27,6 +27,8 @@ struct mmap2_event {
u32 min;
u64 ino;
u64 ino_generation;
+ u32 prot;
+ u32 flags;
char filename[PATH_MAX];
};
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 7409ac8de51c..0e5fea95d596 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1060,6 +1060,8 @@ int machine__process_mmap2_event(struct machine *machine,
event->mmap2.pid, event->mmap2.maj,
event->mmap2.min, event->mmap2.ino,
event->mmap2.ino_generation,
+ event->mmap2.prot,
+ event->mmap2.flags,
event->mmap2.filename, type);
if (map == NULL)
@@ -1105,7 +1107,7 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event
map = map__new(&machine->user_dsos, event->mmap.start,
event->mmap.len, event->mmap.pgoff,
- event->mmap.pid, 0, 0, 0, 0,
+ event->mmap.pid, 0, 0, 0, 0, 0, 0,
event->mmap.filename,
type);
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 8ccbb32eda25..25c571f4cba6 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -138,7 +138,7 @@ void map__init(struct map *map, enum map_type type,
struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
- u64 ino_gen, char *filename,
+ u64 ino_gen, u32 prot, u32 flags, char *filename,
enum map_type type)
{
struct map *map = malloc(sizeof(*map));
@@ -157,6 +157,8 @@ struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
map->min = d_min;
map->ino = ino;
map->ino_generation = ino_gen;
+ map->prot = prot;
+ map->flags = flags;
if ((anon || no_dso) && type == MAP__FUNCTION) {
snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", pid);
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index ae2d45110588..7758c72522ef 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -35,6 +35,8 @@ struct map {
bool referenced;
bool erange_warned;
u32 priv;
+ u32 prot;
+ u32 flags;
u64 pgoff;
u64 reloc;
u32 maj, min; /* only valid for MMAP2 record */
@@ -118,7 +120,7 @@ void map__init(struct map *map, enum map_type type,
u64 start, u64 end, u64 pgoff, struct dso *dso);
struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
- u64 ino_gen,
+ u64 ino_gen, u32 prot, u32 flags,
char *filename, enum map_type type);
struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
void map__delete(struct map *map);

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