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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2009-11-21 14:31:26 -0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-21 17:45:59 +0100 |
| commit | e25613683bd5c46d3e8c8ae6416dccc9f357dcdc (patch) | |
| tree | a78a494c84d705d8505bd45e80fe7375943bb76e /tools/perf/util/trace-event.h | |
| parent | c12e15e71d4b32da045e798ffd21cbb6197d1c65 (diff) | |
| download | blackbird-op-linux-e25613683bd5c46d3e8c8ae6416dccc9f357dcdc.tar.gz blackbird-op-linux-e25613683bd5c46d3e8c8ae6416dccc9f357dcdc.zip | |
perf trace: Read_tracing_data should die() another day
It better propagate errors, also if we do a simple:
[root@doppio linux-2.6-tip]# perf record -R -a -f sleep 3s ;
perf trace [ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.182 MB perf.data (~7972 samples) ]
Fatal: not an trace data file
[root@doppio linux-2.6-tip]#
That is what is expected, right? I.e. as we didn't specify any
tracepoint event via -e, it should gracefully bail out and not
SEGFAULT.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
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: <1258821086-11521-3-git-send-email-acme@infradead.org>
[ Fixed the error messages some more ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/trace-event.h')
| -rw-r--r-- | tools/perf/util/trace-event.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h index f6637c2fa1fe..dd51c6872a15 100644 --- a/tools/perf/util/trace-event.h +++ b/tools/perf/util/trace-event.h @@ -248,7 +248,7 @@ unsigned long long raw_field_value(struct event *event, const char *name, void *data); void *raw_field_ptr(struct event *event, const char *name, void *data); -void read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events); +int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events); /* taken from kernel/trace/trace.h */ enum trace_flag_type { |
