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| author | Jiri Olsa <jolsa@redhat.com> | 2014-03-02 14:32:07 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-03-10 11:17:14 -0300 |
| commit | 155b3a13a65d4217316dbe094843f2a7df0711fa (patch) | |
| tree | 50220eab009a1088fcc8b9de51dfb69e9845c536 /tools | |
| parent | 02c5bb4a352a4cca56e9b5d3a2a57d61062eb2e1 (diff) | |
| download | lwn-155b3a13a65d4217316dbe094843f2a7df0711fa.tar.gz lwn-155b3a13a65d4217316dbe094843f2a7df0711fa.zip | |
perf symbols: Fix crash in elf_section_by_name
Fixing crash in elf_section_by_name function caused by missing section
name in elf binary.
Reported-by: Albert Strasheim <albert@cloudflare.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Albert Strasheim <albert@cloudflare.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
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/1393767127-599-1-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/symbol-elf.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index 3e9f336740fa..516d19fb999b 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -151,15 +151,15 @@ Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, gelf_getshdr(sec, shp); str = elf_strptr(elf, ep->e_shstrndx, shp->sh_name); - if (!strcmp(name, str)) { + if (str && !strcmp(name, str)) { if (idx) *idx = cnt; - break; + return sec; } ++cnt; } - return sec; + return NULL; } #define elf_section__for_each_rel(reldata, pos, pos_mem, idx, nr_entries) \ |