perf session: Fail on processing event with unknown size
authorJiri Olsa <jolsa@redhat.com>
Mon, 16 Apr 2012 18:42:51 +0000 (20:42 +0200)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 4 May 2012 14:53:22 +0000 (11:53 -0300)
commit9389a46043c8f091dc8f8d8e25a5c1355f8bcc9b
tree54c4581ee79eea4e51530f9b423b8f7e825140e4
parentdc41b9b8f02dbe2228ae787d525dac43beebb7fa
perf session: Fail on processing event with unknown size

Currently if we cannot decide the size of the event, we guess next
event possition by:
  "... check alignment, and increment a single u64 in the hope
  to catch on again 'soon'"

This usually ends up with segfault or endless loop. It's better
to admit the failure right away, then pretend nothing happened.
It makes the life easier ;)

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20120416184251.GA11503@m.brq.redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/session.c