path: root/tools
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authorAnton Blanchard <>2011-08-24 16:40:14 +1000
committerArnaldo Carvalho de Melo <>2011-09-23 14:35:57 -0300
commitadb091846318f86e4f46c7d6a7b40d2f478abdbe (patch)
treed5144d3e61af6632cbc13069555e71bc35e4a7b0 /tools
parentf66fedcb723a9f118170200e21dbabb305f8c702 (diff)
perf symbols: Fix ppc64 SEGV in dso__load_sym with debuginfo files
64bit PowerPC debuginfo files have an empty function descriptor section. I hit a SEGV when perf tried to use this section for symbol resolution. To fix this we need to check the section is valid and we can do this by checking for type SHT_PROGBITS. Cc: <> Cc: Ingo Molnar <> Cc: Paul Mackerras <> Cc: Peter Zijlstra <> Cc: Eric B Munson <> Link: Signed-off-by: Anton Blanchard <> Signed-off-by: Arnaldo Carvalho de Melo <>
Diffstat (limited to 'tools')
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 469c0264ed29..bb5d32f38af2 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1111,6 +1111,8 @@ static int dso__load_sym(struct dso *dso, struct map *map, const char *name,
opdsec = elf_section_by_name(elf, &ehdr, &opdshdr, ".opd", &opdidx);
+ if (opdshdr.sh_type != SHT_PROGBITS)
+ opdsec = NULL;
if (opdsec)
opddata = elf_rawdata(opdsec, NULL);