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Commit bad40917 authored by Stephane Eranian's avatar Stephane Eranian Committed by Arnaldo Carvalho de Melo
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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: default avatarStephane 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 028f12ee

tools/perf/util/machine.c

+9 −1
Original line number Diff line number Diff line
@@ -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;