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authorNamhyung Kim <namhyung@kernel.org>2017-06-08 16:31:05 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-06-08 15:39:07 -0300
commit1d6b3c9ba756a5134fd7ad1959acac776d17404b (patch)
tree3379ed07cb377a694c74a65c5905b862677ef48c /tools
parent3c84fd53044f98017271101b59a21ddb20fb312b (diff)
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>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/dso.c16
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;
}

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