Commit-ID: 2c7da8c590ad719796f46c875a096eb45ef971c7
Gitweb: http://git.kernel.org/tip/2c7da8c590ad719796f46c875a096eb45ef971c7
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Mon, 2 Mar 2015 12:56:12 -0500
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 23 Mar 2015 12:49:27 -0300
perf annotate: Allow annotation for decompressed kernel modules
Decompressing kernel module file for objdump command if needed.
Annotation commands now display annotation for compressed kernel
modules.
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-x4jcytk2d5qjmnjvb0w75q3f@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/annotate.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 61bf912..b72086e 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1008,6 +1008,32 @@ fallback:
}
filename = symfs_filename;
}
+ } else if (dso__needs_decompress(dso)) {
+ char tmp[PATH_MAX];
+ struct kmod_path m;
+ int fd;
+ bool ret;
+
+ if (kmod_path__parse_ext(&m, symfs_filename))
+ goto out_free_filename;
+
+ snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");
+
+ fd = mkstemp(tmp);
+ if (fd < 0) {
+ free(m.ext);
+ goto out_free_filename;
+ }
+
+ ret = decompress_to_file(m.ext, symfs_filename, fd);
+
+ free(m.ext);
+ close(fd);
+
+ if (!ret)
+ goto out_free_filename;
+
+ strcpy(symfs_filename, tmp);
}
snprintf(command, sizeof(command),
@@ -1027,7 +1053,7 @@ fallback:
file = popen(command, "r");
if (!file)
- goto out_free_filename;
+ goto out_remove_tmp;
while (!feof(file))
if (symbol__parse_objdump_line(sym, map, file, privsize,
@@ -1042,6 +1068,10 @@ fallback:
delete_last_nop(sym);
pclose(file);
+
+out_remove_tmp:
+ if (dso__needs_decompress(dso))
+ unlink(symfs_filename);
out_free_filename:
if (delete_extract)
kcore_extract__delete(&kce);
--
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