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authorArnaldo Carvalho de Melo <acme@redhat.com>2014-11-11 11:25:28 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-11-19 12:33:46 -0300
commit162bcc17bb876772793ca070ebd6488cfdae09bf (patch)
treed1276d1ac1d0bcde1be4f54a0b2e811bc2eb1e88 /tools/perf
parent5e2d4d0e88dac4003cf96aca00d63aff2314391e (diff)
perf symbols: Fallback to kallsyms when using the minimal 'ELF' loader
The minimal ELF loader should not return 1 when it manages to read the vmlinux build-id, it should instead return 0, meaning that it hasn't loaded any symbols, since it doesn't parses ELF at all. That way, the main symbol.c routines will understand that it is necessary to continue looking for a file with symbols, and when no libelf is linked, that means it will eventually try kallsyms. Reported-by: Peter Zijlstra <peterz@infradead.org> Tested-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20141111130326.GT18464@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/symbol-minimal.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c
index c9541fea951..fa585c63f56 100644
--- a/tools/perf/util/symbol-minimal.c
+++ b/tools/perf/util/symbol-minimal.c
@@ -341,7 +341,6 @@ int dso__load_sym(struct dso *dso, struct map *map __maybe_unused,
if (filename__read_build_id(ss->name, build_id, BUILD_ID_SIZE) > 0) {
dso__set_build_id(dso, build_id);
- return 1;
}
return 0;
}