Commit-ID: 452958fdd05b43b6c91cfd1341f4fac2f3ce661f
Gitweb: http://git.kernel.org/tip/452958fdd05b43b6c91cfd1341f4fac2f3ce661f
Author: Namhyung Kim <namhyung.kim@xxxxxxx>
AuthorDate: Thu, 21 Mar 2013 16:18:51 +0900
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 21 Mar 2013 13:37:13 -0300
perf tools: Get rid of die() calls in trace-data-read.c
Convert them to pr_debug() and propagate error code.
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1363850332-25297-9-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/trace-event-read.c | 44 +++++++++++++++++++++++++-------------
1 file changed, 29 insertions(+), 15 deletions(-)
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 877706b..644ad3b 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -130,17 +130,23 @@ static char *read_string(void)
for (;;) {
r = read(input_fd, &c, 1);
- if (r < 0)
- die("reading input file");
+ if (r < 0) {
+ pr_debug("reading input file");
+ goto out;
+ }
- if (!r)
- die("no data");
+ if (!r) {
+ pr_debug("no data");
+ goto out;
+ }
if (repipe) {
int retw = write(STDOUT_FILENO, &c, 1);
- if (retw <= 0 || retw != r)
- die("repiping input file string");
+ if (retw <= 0 || retw != r) {
+ pr_debug("repiping input file string");
+ goto out;
+ }
}
buf[size++] = c;
@@ -155,7 +161,7 @@ static char *read_string(void)
str = malloc(size);
if (str)
memcpy(str, buf, size);
-
+out:
return str;
}
@@ -219,8 +225,10 @@ static int read_header_files(struct pevent *pevent)
if (do_read(buf, 12) < 0)
return -1;
- if (memcmp(buf, "header_page", 12) != 0)
- die("did not read header page");
+ if (memcmp(buf, "header_page", 12) != 0) {
+ pr_debug("did not read header page");
+ return -1;
+ }
size = read8(pevent);
skip(size);
@@ -234,8 +242,10 @@ static int read_header_files(struct pevent *pevent)
if (do_read(buf, 13) < 0)
return -1;
- if (memcmp(buf, "header_event", 13) != 0)
- die("did not read header event");
+ if (memcmp(buf, "header_event", 13) != 0) {
+ pr_debug("did not read header event");
+ return -1;
+ }
size = read8(pevent);
header_event = malloc(size);
@@ -353,13 +363,17 @@ ssize_t trace_report(int fd, struct pevent **ppevent, bool __repipe)
if (do_read(buf, 3) < 0)
return -1;
- if (memcmp(buf, test, 3) != 0)
- die("no trace data in the file");
+ if (memcmp(buf, test, 3) != 0) {
+ pr_debug("no trace data in the file");
+ return -1;
+ }
if (do_read(buf, 7) < 0)
return -1;
- if (memcmp(buf, "tracing", 7) != 0)
- die("not a trace file (missing 'tracing' tag)");
+ if (memcmp(buf, "tracing", 7) != 0) {
+ pr_debug("not a trace file (missing 'tracing' tag)");
+ return -1;
+ }
version = read_string();
if (version == NULL)
--
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