linux-kernel - [PATCH 02/25] perf tools: Use kmod_path__parse in decompress

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Message-Id: <1427213980-9015-3-git-send-email-acme@kernel.org>
Date:	Tue, 24 Mar 2015 13:19:17 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Stephane Eranian <eranian@...gle.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 02/25] perf tools: Use kmod_path__parse in decompress_kmodule

From: Jiri Olsa <jolsa@...nel.org>

Replacing the file name parsing with kmod_path__parse.

Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/n/tip-zpyyitlte7lwe2ywi51rj4n5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/symbol-elf.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 62742e46c010..78ffde9df9bf 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -579,32 +579,34 @@ static int dso__swap_init(struct dso *dso, unsigned char eidata)
 static int decompress_kmodule(struct dso *dso, const char *name,
 			      enum dso_binary_type type)
 {
-	int fd;
-	const char *ext = strrchr(name, '.');
+	int fd = -1;
 	char tmpbuf[] = "/tmp/perf-kmod-XXXXXX";
+	struct kmod_path m;
 
 	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)) {
-		ext = strrchr(dso->name, '.');
-		if (!ext || !is_supported_compression(ext + 1))
-			return -1;
-	}
+	if (type == DSO_BINARY_TYPE__BUILD_ID_CACHE)
+		name = dso->long_name;
+
+	if (kmod_path__parse_ext(&m, name) || !m.comp)
+		return -1;
 
 	fd = mkstemp(tmpbuf);
 	if (fd < 0)
-		return -1;
+		goto out;
 
-	if (!decompress_to_file(ext + 1, name, fd)) {
+	if (!decompress_to_file(m.ext, name, fd)) {
 		close(fd);
 		fd = -1;
 	}
 
 	unlink(tmpbuf);
 
+out:
+	free(m.ext);
 	return fd;
 }
 
-- 
1.9.3

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