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| author | Daniel Bristot de Oliveira <bristot@redhat.com> | 2016-02-22 14:08:22 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-02-23 11:40:51 -0300 |
| commit | 0e47b38dcd24c78d0699b42f28d5986154d2aa11 (patch) | |
| tree | 41f30f6939d14fb0185936dc8b554f8456e2d40c /tools/lib | |
| parent | 03e0a7df3efd959e40cd7ff40b1fabddc234ec5a (diff) | |
| download | lwn-0e47b38dcd24c78d0699b42f28d5986154d2aa11.tar.gz lwn-0e47b38dcd24c78d0699b42f28d5986154d2aa11.zip | |
tools lib traceevent: Implement '%' operation
The operation '%' is not implemented on event-parse.c, causing an error
when parsing events with '%' the operation in its printk format. For
example,
# perf record -e sched:sched_deadline_yield ~/yield-test
Warning: [sched:sched_deadline_yield] unknown op '%'
....
# perf script
Warning: [sched:sched_deadline_yield] unknown op '%'
test 1641 [006] 3364.109319: sched:sched_deadline_yield: \
[FAILED TO PARSE] now=3364109314595 \
deadline=3364139295135 runtime=19975597
This patch implements the '%' operation. With this patch, we see the
correct output:
# perf record -e sched:sched_deadline_yield ~/yield-test
No Warning
# perf script
yield-test 4005 [001] 4623.650978: sched:sched_deadline_yield: \
now=4623.650974050 \
deadline=4623.680957364 remaining_runtime=19979611
Signed-off-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Juri Lelli <juri.lelli@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-rt-users <linux-rt-users@vger.kernel.org>
Link: http://lkml.kernel.org/r/5c96a395c56cea6d3d13d949051bdece86cc26e0.1456157869.git.bristot@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/traceevent/event-parse.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index c3bd294a63d1..575e75174087 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -1951,6 +1951,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok) strcmp(token, "*") == 0 || strcmp(token, "^") == 0 || strcmp(token, "/") == 0 || + strcmp(token, "%") == 0 || strcmp(token, "<") == 0 || strcmp(token, ">") == 0 || strcmp(token, "<=") == 0 || @@ -3689,6 +3690,9 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg case '/': val = left / right; break; + case '%': + val = left % right; + break; case '*': val = left * right; break; |