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perf annotate: Fix sizeof_sym_hist overflow issue 

The annotated_source::sizeof_sym_hist could easily overflow int size,
resulting in crash in __symbol__inc_addr_samples.

Changing its type int size_t as was probably intended from beginning
based on the initialization code in symbol__alloc_hist.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1444068369-20978-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-10-05 20:06:03 +02:00 committed by Arnaldo Carvalho de Melo
parent 84422592e5
commit 5ec4502d77
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/annotate.h
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@ -122,7 +122,7 @@ struct annotated_source {
struct list_head source;
struct source_line *lines;
int nr_histograms;
int sizeof_sym_hist;
size_t sizeof_sym_hist;
struct cyc_hist *cycles_hist;
struct sym_hist histograms[0];
};