diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2015-01-29 08:06:42 (GMT) |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-01-29 19:56:54 (GMT) |
| commit | 0b064f43001fc2627ff8c3020647b85db040235f (patch) | |
| tree | efa0b06cbd345d8bff4d0272e6e6ae7b4030ce6d /tools/perf | |
| parent | 62e503b7ed98fcdf16308cda0b5378e7840f4339 (diff) | |
| download | linux-0b064f43001fc2627ff8c3020647b85db040235f.tar.xz | |
perf symbols: Support to read compressed module from build-id cache
The commit c00c48fc6e6e ("perf symbols: Preparation for compressed
kernel module support") added support for compressed kernel modules but
it only supports system path DSOs. When a dso is read from build-id
cache, its filename doesn't end with ".gz" but has build-id. In this
case, we should fallback to the original dso->name.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1422518843-25818-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/symbol-elf.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index 06fcd1b..b24f9d8 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -574,13 +574,16 @@ static int decompress_kmodule(struct dso *dso, const char *name, const char *ext = strrchr(name, '.'); char tmpbuf[] = "/tmp/perf-kmod-XXXXXX"; - if ((type != DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP && - type != DSO_BINARY_TYPE__GUEST_KMODULE_COMP) || - type != dso->symtab_type) + if (type != DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP && + type != DSO_BINARY_TYPE__GUEST_KMODULE_COMP && + type != DSO_BINARY_TYPE__BUILD_ID_CACHE) return -1; - if (!ext || !is_supported_compression(ext + 1)) - return -1; + if (!ext || !is_supported_compression(ext + 1)) { + ext = strrchr(dso->name, '.'); + if (!ext || !is_supported_compression(ext + 1)) + return -1; + } fd = mkstemp(tmpbuf); if (fd < 0) |