Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 03/16] perf symbols: Fallback to kallsyms when using the minimal 'ELF' loader | Date | Wed, 19 Nov 2014 13:03:23 -0300 |
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
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> --- tools/perf/util/symbol-minimal.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c index c9541fea9514..fa585c63f56a 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; } -- 1.9.3
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