perf trace: Check if sample raw_data field is set
authorArnaldo Carvalho de Melo <acme@redhat.com>
Sat, 20 Oct 2012 16:08:46 +0000 (13:08 -0300)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 22 Oct 2012 01:07:36 +0000 (23:07 -0200)
commitfc551f8d4427150da1ee7cbb0f53525c49ef4bca
tree87aaf6b20a79fb2b87e5e7bac2f138f9a7738444
parent3a531260a14631ae8d231279b8738884bf808e7b
perf trace: Check if sample raw_data field is set

Sometimes we're segfaulting because we were expecting that the
perf_sample.raw_data field was set as requested, but in some cases
that needs further investigation, that field can be NULL, leading
to segfaults.

Make the tool more robust by checking that before calling any per event
handlers that may try to use that field.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-g1fmodl6ys4lq8honbj1igoi@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-trace.c