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authorJiri Olsa <jolsa@redhat.com>2014-01-07 13:47:24 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-02-18 09:34:48 -0300
commit1cf0382af98f6365b01b59453fe18dffe3c73d2f (patch)
tree83fda6824039923316b40d02740f4e999c56e6e7 /tools
parentb42dc32d4f91e4c0f34b628fdb012eb423da9e69 (diff)
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perf callchain: Do not report zero address in unwind
We are not interested in zero addresses in callchain, do not report them. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Jean Pihet <jean.pihet@linaro.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1389098853-14466-8-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/unwind.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/unwind.c b/tools/perf/util/unwind.c
index bff3209305e1..3b7018102dfb 100644
--- a/tools/perf/util/unwind.c
+++ b/tools/perf/util/unwind.c
@@ -563,7 +563,7 @@ static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb,
unw_word_t ip;
unw_get_reg(&c, UNW_REG_IP, &ip);
- ret = entry(ip, ui->thread, ui->machine, cb, arg);
+ ret = ip ? entry(ip, ui->thread, ui->machine, cb, arg) : 0;
}
unw_destroy_addr_space(addr_space);