linux-kernel - [tip:perf/urgent] perf annotate: Use dso__decompress_kmodule

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Date:   Thu, 8 Jun 2017 15:51:11 -0700
From:   tip-bot for Namhyung Kim <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     tglx@...utronix.de, wangnan0@...wei.com, acme@...hat.com,
        linux-kernel@...r.kernel.org, a.p.zijlstra@...llo.nl,
        dsahern@...il.com, jolsa@...nel.org, adrian.hunter@...el.com,
        hpa@...or.com, namhyung@...nel.org, mingo@...nel.org
Subject: [tip:perf/urgent] perf annotate: Use dso__decompress_kmodule_path()

Commit-ID:  3c84fd53044f98017271101b59a21ddb20fb312b
Gitweb:     http://git.kernel.org/tip/3c84fd53044f98017271101b59a21ddb20fb312b
Author:     Namhyung Kim <namhyung@...nel.org>
AuthorDate: Thu, 8 Jun 2017 16:31:04 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Thu, 8 Jun 2017 15:39:02 -0300

perf annotate: Use dso__decompress_kmodule_path()

Convert open-coded decompress routine to use the function.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Wang Nan <wangnan0@...wei.com>
Cc: kernel-team@....com
Link: http://lkml.kernel.org/r/20170608073109.30699-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/annotate.c | 27 +++------------------------
 1 file changed, 3 insertions(+), 24 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index df4486c..ddbd56d 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1431,31 +1431,10 @@ int symbol__disassemble(struct symbol *sym, struct map *map, const char *arch_na
 				sizeof(symfs_filename));
 		}
 	} else if (dso__needs_decompress(dso)) {
-		char tmp[PATH_MAX];
-		struct kmod_path m;
-		int fd;
-		bool ret;
+		char tmp[KMOD_DECOMP_LEN];
 
-		if (kmod_path__parse_ext(&m, symfs_filename))
-			goto out;
-
-		snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");
-
-		fd = mkstemp(tmp);
-		if (fd < 0) {
-			free(m.ext);
-			goto out;
-		}
-
-		ret = decompress_to_file(m.ext, symfs_filename, fd);
-
-		if (ret)
-			pr_err("Cannot decompress %s %s\n", m.ext, symfs_filename);
-
-		free(m.ext);
-		close(fd);
-
-		if (!ret)
+		if (dso__decompress_kmodule_path(dso, symfs_filename,
+						 tmp, sizeof(tmp)) < 0)
 			goto out;
 
 		strcpy(symfs_filename, tmp);