perf: Add PERF_RECORD_MISC_MMAP_DATA to RECORD_MMAP
authorStephane Eranian <eranian@google.com>
Thu, 24 Jan 2013 15:10:39 +0000 (16:10 +0100)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 1 Apr 2013 15:19:02 +0000 (12:19 -0300)
commit2fe85427e3bf65d791700d065132772fc26e4d75
tree8561cc61ebf26c519dec1ea0340e5af295632ebb
parent9ad64c0f481c37a63dd39842a0fd264bee44a097
perf: Add PERF_RECORD_MISC_MMAP_DATA to RECORD_MMAP

Type of mapping was lost and made it hard for a tool
to distinguish code vs. data mmaps. Perf has the ability
to distinguish the two.

Use a bit in the header->misc bitmask to keep track of
the mmap type. If PERF_RECORD_MISC_MMAP_DATA is set then
the mapping is not executable (!VM_EXEC). If not set, then
the mapping is executable.

Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: peterz@infradead.org
Cc: ak@linux.intel.com
Cc: acme@redhat.com
Cc: jolsa@redhat.com
Cc: namhyung.kim@lge.com
Link: http://lkml.kernel.org/r/1359040242-8269-16-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
include/uapi/linux/perf_event.h
kernel/events/core.c