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perf symbols: Handle NULL dso in dso__name_len
author
David Miller
<davem@davemloft.net>
Sun, 25 Mar 2012 20:28:22 +0000
(16:28 -0400)
committer
Arnaldo Carvalho de Melo
<acme@redhat.com>
Tue, 27 Mar 2012 14:00:58 +0000
(11:00 -0300)
We should use "[unknown]" in this case, in concert with the code in
_hist_entry__dso_snprintf().
Otherwise we'll crash when recomputing the histogram column lengths in
hists__calc_col_len().
Signed-off-by: David S. Miller <davem@davemloft.net>
Link:
http://lkml.kernel.org/r/20120325.162822.2267799792062571623.davem@davemloft.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/symbol.c
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diff --git
a/tools/perf/util/symbol.c
b/tools/perf/util/symbol.c
index
d9e995b
..
c0a028c
100644
(file)
--- a/
tools/perf/util/symbol.c
+++ b/
tools/perf/util/symbol.c
@@
-50,6
+50,8
@@
struct symbol_conf symbol_conf = {
int dso__name_len(const struct dso *dso)
{
+ if (!dso)
+ return strlen("[unknown]");
if (verbose)
return dso->long_name_len;