tree ea59e724cec133e301cd73306e31362a1ddfe8f3
parent c5fc472171ec4f96d06d1ac039d88f9b89bb95db
author Frederic Weisbecker <fweisbec@gmail.com> 1305990444 +0200
committer Frederic Weisbecker <fweisbec@gmail.com> 1306026733 +0200

perf tools: Check we are able to read the event size on mmap

Check we have enough mmaped space to read the current event
size from its headers, otherwise we may dereference some
hell there.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>