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authorArnaldo Carvalho de Melo <acme@redhat.com>2009-12-14 20:09:30 -0200
committerIngo Molnar <mingo@elte.hu>2009-12-15 08:50:29 +0100
commitb38d34645cc52136b6c99623fef7ded26742e573 (patch)
treec395ed3bcda85d49f5a842f91ccca2d33a1efa5c /tools/perf/builtin-record.c
parentc8829c7a31c7e0156b230fa8d5a14be9881d7677 (diff)
downloadlinux-2.6.34-ux500-b38d34645cc52136b6c99623fef7ded26742e573.tar.gz
perf record: Rename perf.data to perf.data.old if --force/-f is used
Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260828571-3613-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-record.c')
-rw-r--r--tools/perf/builtin-record.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index a66a58d5281..66979a5553b 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -421,10 +421,19 @@ static int __cmd_record(int argc, const char **argv)
signal(SIGINT, sig_handler);
if (!stat(output_name, &st) && st.st_size) {
- if (!force && !append_file) {
- fprintf(stderr, "Error, output file %s exists, use -A to append or -f to overwrite.\n",
- output_name);
- exit(-1);
+ if (!force) {
+ if (!append_file) {
+ pr_err("Error, output file %s exists, use -A "
+ "to append or -f to overwrite.\n",
+ output_name);
+ exit(-1);
+ }
+ } else {
+ char oldname[PATH_MAX];
+ snprintf(oldname, sizeof(oldname), "%s.old",
+ output_name);
+ unlink(oldname);
+ rename(output_name, oldname);
}
} else {
append_file = 0;