Currently code that tries to read corresponding debug symbol
file from .gnu_debuglink section (DSO_BINARY_TYPE__DEBUGLINK)
does not take in account symfs option, so filename__read_debuglink
function cannot open ELF file, if symfs option is used.
Fix is to add proper handling of symfs as it is done in other
places: use __symbol__join_symfs function to get real file name
of target ELF file.
Signed-off-by: Victor Kamensky <victor.kamen...@linaro.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: Waiman Long <waiman.l...@hp.com>
Cc: David Ahern <dsah...@gmail.com>
Acked-and-tested-by: David Ahern <dsah...@gmail.com>
---
tools/perf/util/dso.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 45be944..ca8d8d5 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -45,13 +45,13 @@ int dso__read_binary_type_filename(const struct dso *dso,
case DSO_BINARY_TYPE__DEBUGLINK: {
char *debuglink;
- strncpy(filename, dso->long_name, size);
- debuglink = filename + dso->long_name_len;
+ len = __symbol__join_symfs(filename, size, dso->long_name);
+ debuglink = filename + len;
while (debuglink != filename && *debuglink != '/')
debuglink--;
if (*debuglink == '/')
debuglink++;
- ret = filename__read_debuglink(dso->long_name, debuglink,
+ ret = filename__read_debuglink(filename, debuglink,
size - (debuglink - filename));
}
break;
--
1.9.3
--
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