If .dynsym exists but .dynstr is empty (NO_BITS or size==0), a segfault
occurs. Avoid this by checking that .dynstr is not empty.
Signed-off-by: Cody P Schafer <c...@linux.vnet.ibm.com>
---
tools/perf/util/symbol-elf.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index e037609..a2e994e 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -232,6 +232,9 @@ int dso__synthesize_plt_symbols(struct dso *dso, char
*name, struct map *map,
if (symstrs == NULL)
goto out_elf_end;
+ if (symstrs->d_size == 0)
+ goto out_elf_end;
+
nr_rel_entries = shdr_rel_plt.sh_size / shdr_rel_plt.sh_entsize;
plt_offset = shdr_plt.sh_offset;
--
1.7.11.3
--
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