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| author | Yannick Brosseau <scientist@fb.com> | 2015-06-17 16:41:10 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-06-19 18:14:05 -0300 |
| commit | c05676c06232e6459a6106ddf0d4e154ce6cd859 (patch) | |
| tree | 999a0847ccfcced28533205a0b8ed7d9dbc760bb /tools/perf | |
| parent | 3e323dc0a80c3921f30d03ca300426f70dc5a327 (diff) | |
| download | op-kernel-dev-c05676c06232e6459a6106ddf0d4e154ce6cd859.zip op-kernel-dev-c05676c06232e6459a6106ddf0d4e154ce6cd859.tar.gz | |
perf report: Fix sort__sym_cmp to also compare end of symbol
When using a map file from a JIT, due to memory reuse, we can obtain
multiple symbols with the same start address but a different length.
The symbols__find does check for the end so not doing it in
sort__sym_cmp was causing the hist_entry in the annotate part of a
report to match to the wrong entry, causing a fatal error.
Signed-off-by: Yannick Brosseau <scientist@fb.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: kernel-team@fb.com
Link: http://lkml.kernel.org/r/1434584470-17771-1-git-send-email-scientist@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/sort.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index 09d4696..4c65a14 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -182,18 +182,16 @@ static int64_t _sort__addr_cmp(u64 left_ip, u64 right_ip) static int64_t _sort__sym_cmp(struct symbol *sym_l, struct symbol *sym_r) { - u64 ip_l, ip_r; - if (!sym_l || !sym_r) return cmp_null(sym_l, sym_r); if (sym_l == sym_r) return 0; - ip_l = sym_l->start; - ip_r = sym_r->start; + if (sym_l->start != sym_r->start) + return (int64_t)(sym_r->start - sym_l->start); - return (int64_t)(ip_r - ip_l); + return (int64_t)(sym_r->end - sym_l->end); } static int64_t |
