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authorStephane Eranian <eranian@google.com>2013-01-24 16:10:40 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-04-01 12:22:00 -0300
commitbad4091791b0bb8c2d7919ddefe2f0d109299b5a (patch)
treeb551d801c52d221b3d0f11037d70272388322797 /tools/perf/util/machine.c
parent028f12ee6beff0961781c5ed3f740e5f3b56f781 (diff)
downloadvexpress-lsk-bad4091791b0bb8c2d7919ddefe2f0d109299b5a.tar.gz
perf machine: Detect data vs. text mappings
Leverages the PERF_RECORD_MISC_MMAP_DATA bit in the RECORD_MMAP record header. When the bit is set then the mapping type is set to MAP__VARIABLE. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1359040242-8269-17-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/machine.c')
-rw-r--r--tools/perf/util/machine.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index d77ba869d7e..b2ecad6ec46 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -955,6 +955,7 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct thread *thread;
struct map *map;
+ enum map_type type;
int ret = 0;
if (dump_trace)
@@ -971,10 +972,17 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event
thread = machine__findnew_thread(machine, event->mmap.pid);
if (thread == NULL)
goto out_problem;
+
+ if (event->header.misc & PERF_RECORD_MISC_MMAP_DATA)
+ type = MAP__VARIABLE;
+ else
+ type = MAP__FUNCTION;
+
map = map__new(&machine->user_dsos, event->mmap.start,
event->mmap.len, event->mmap.pgoff,
event->mmap.pid, event->mmap.filename,
- MAP__FUNCTION);
+ type);
+
if (map == NULL)
goto out_problem;