From: Nicholas Fraser nfraser@codeweavers.com
[ Upstream commit 77771a97011fa9146ccfaf2983a3a2885dc57b6f ]
The first time dso__load() was called on a PE file it always returned -1 error. This caused the first call to map__find_symbol() to always fail on a PE file so the first sample from each PE file always had symbol <unknown>. Subsequent samples succeed however because the DSO is already loaded.
This fixes dso__load() to return 0 when successfully loading a DSO with libbfd.
Fixes: eac9a4342e5447ca ("perf symbols: Try reading the symbol table with libbfd") Signed-off-by: Nicholas Fraser nfraser@codeweavers.com Cc: Adrian Hunter adrian.hunter@intel.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Frank Ch. Eigler fche@redhat.com Cc: Huw Davies huw@codeweavers.com Cc: Ian Rogers irogers@google.com Cc: Jiri Olsa jolsa@redhat.com Cc: Kim Phillips kim.phillips@amd.com Cc: Mark Rutland mark.rutland@arm.com Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Remi Bernon rbernon@codeweavers.com Cc: Song Liu songliubraving@fb.com Cc: Tommi Rantala tommi.t.rantala@nokia.com Cc: Ulrich Czekalla uczekalla@codeweavers.com Link: http://lore.kernel.org/lkml/1671b43b-09c3-1911-dbf8-7f030242fbf7@codeweavers... Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/symbol.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 1645fb4ec9ed4..7dcf3327c5f7d 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1866,8 +1866,10 @@ int dso__load(struct dso *dso, struct map *map) if (nsexit) nsinfo__mountns_enter(dso->nsinfo, &nsc);
- if (bfdrc == 0) + if (bfdrc == 0) { + ret = 0; break; + }
if (!is_reg || sirc < 0) continue;