• Stephane Eranian's avatar
    perf tools: Fix bug in raw sample parsing · fa30c964
    Stephane Eranian authored
    In perf_event__parse_sample(), the array variable was not incremented
    by the amount of data used by the raw_data.
    
    That was okay until we added PERF_SAMPLE_BRANCH_STACK which depends on
    the array variable pointing to the beginning of the branch stack data.
    
    But that was not the case if branch stack was combined with raw mode
    sampling. That led to bogus branch stack addresses and count.
    
    The bug would show up with:
    $ perf record -R -b foo
    
    This patch fixes the problem by correctly moving the array pointer
    forward for RAW samples.
    Signed-off-by: default avatarStephane Eranian <eranian@google.com>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Link: http://lkml.kernel.org/r/20120317222317.GA8803@quad
    [ committer note: Fix also later submitted by Jiri Olsa ]
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    fa30c964
evsel.c 14.2 KB