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Subject[PATCH v4 5/9] perf tools: Decompress kernel module when reading DSO data
Date
Currently perf decompresses kernel modules when loading symbol table but
it missed to do it when reading raw data.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/util/dso.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

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;
}
--
2.13.1
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