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authorArnaldo Carvalho de Melo <acme@redhat.com>2011-01-11 15:16:52 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-01-11 16:56:16 -0200
commitcc841580aa58ad7498b23e282859d07f8b721e24 (patch)
tree978472344a1ac34c202d07fd6afa9598b2063297 /tools
parentbd3bfe9eda94d3c050830217c1e1c338808de5b2 (diff)
downloadlinux-2.6.38-lt-ux500-cc841580aa58ad7498b23e282859d07f8b721e24.tar.gz
perf top: Fix annotate segv
Before we had sym_counter, it was initialized to zero and we used that as an index in the global attrs variable, now we have a list of evsel entries, and sym_counter became sym_evsel, that remained initialized to zero (NULL): b00m. Fix it by initializing it to the first entry in the evsel list. Bug-introduced: 69aad6f Reported-by: Kirill Smelkov <kirr@mns.spb.ru> Tested-by: Kirill Smelkov <kirr@mns.spb.ru> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Kirill Smelkov <kirr@mns.spb.ru> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/builtin-top.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 4b995ee099c..568b1950e63 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1473,6 +1473,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
pos->attr.sample_period = default_interval;
}
+ sym_evsel = list_entry(evsel_list.next, struct perf_evsel, node);
+
symbol_conf.priv_size = (sizeof(struct sym_entry) +
(nr_counters + 1) * sizeof(unsigned long));