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perf symbols: Support to read compressed module from build-id cache
The commit c00c48fc6e
("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>
This commit is contained in:
parent
62e503b7ed
commit
0b064f4300
1 changed files with 8 additions and 5 deletions
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@ -574,13 +574,16 @@ static int decompress_kmodule(struct dso *dso, const char *name,
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const char *ext = strrchr(name, '.');
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char tmpbuf[] = "/tmp/perf-kmod-XXXXXX";
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if ((type != DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP &&
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type != DSO_BINARY_TYPE__GUEST_KMODULE_COMP) ||
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type != dso->symtab_type)
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if (type != DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP &&
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type != DSO_BINARY_TYPE__GUEST_KMODULE_COMP &&
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type != DSO_BINARY_TYPE__BUILD_ID_CACHE)
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return -1;
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if (!ext || !is_supported_compression(ext + 1))
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return -1;
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if (!ext || !is_supported_compression(ext + 1)) {
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ext = strrchr(dso->name, '.');
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if (!ext || !is_supported_compression(ext + 1))
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return -1;
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}
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fd = mkstemp(tmpbuf);
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if (fd < 0)
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