diff options
| author | Stephane Eranian <eranian@google.com> | 2013-01-24 16:10:40 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-04-01 17:22:00 +0200 |
| commit | bad4091791b0bb8c2d7919ddefe2f0d109299b5a (patch) | |
| tree | b551d801c52d221b3d0f11037d70272388322797 /tools/perf/util | |
| parent | perf tools: Add new mem command for memory access profiling (diff) | |
| download | linux-bad4091791b0bb8c2d7919ddefe2f0d109299b5a.tar.xz linux-bad4091791b0bb8c2d7919ddefe2f0d109299b5a.zip | |
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')
| -rw-r--r-- | tools/perf/util/machine.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index d77ba869d7ed..b2ecad6ec46b 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; |