diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2017-06-08 16:31:05 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-06-08 15:39:07 -0300 |
| commit | 1d6b3c9ba756a5134fd7ad1959acac776d17404b (patch) | |
| tree | 3379ed07cb377a694c74a65c5905b862677ef48c | |
| parent | 3c84fd53044f98017271101b59a21ddb20fb312b (diff) | |
| download | lwn-1d6b3c9ba756a5134fd7ad1959acac776d17404b.tar.gz lwn-1d6b3c9ba756a5134fd7ad1959acac776d17404b.zip | |
perf tools: Decompress kernel module when reading DSO data
Currently perf decompresses kernel modules when loading the symbol table
but it missed to do it when reading raw data.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20170608073109.30699-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/dso.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index b346b8eba65c..c63525d845c5 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -475,7 +475,23 @@ static int __open_dso(struct dso *dso, struct machine *machine) return -EINVAL; } + if (dso__needs_decompress(dso)) { + char newpath[KMOD_DECOMP_LEN]; + size_t len = sizeof(newpath); + + if (dso__decompress_kmodule_path(dso, name, newpath, len) < 0) { + free(name); + return -dso->load_errno; + } + + strcpy(name, newpath); + } + fd = do_open(name); + + if (dso__needs_decompress(dso)) + unlink(name); + free(name); return fd; } |