From: Steven Rostedt <rostedt@goodmis.org>
To: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>
Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [BUG] libtraceevent: perf script -g python segfaults
Date: Thu, 17 Oct 2019 14:38:41 -0400 [thread overview]
Message-ID: <20191017143841.317b26b5@gandalf.local.home> (raw)
In-Reply-To: <20191017154205.GC8974@kernel.org>
On Thu, 17 Oct 2019 12:42:05 -0300
Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com> wrote:
> I'll try and continue later, but if you guys can take a look...
Does this fix it for you?
-- Steve
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index ad74be1f0e42..227629796e32 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -193,30 +193,32 @@ int parse_event_file(struct tep_handle *pevent,
struct tep_event *trace_find_next_event(struct tep_handle *pevent,
struct tep_event *event)
{
+ static struct tep_event **all_events;
static int idx;
int events_count;
- struct tep_event *all_events;
- all_events = tep_get_first_event(pevent);
events_count = tep_get_events_count(pevent);
if (!pevent || !all_events || events_count < 1)
return NULL;
if (!event) {
idx = 0;
- return all_events;
+ all_events = tep_list_events(pevent, TEP_EVENT_SORT_ID);
+ if (all_events)
+ return all_events[0];
+ return NULL;
}
- if (idx < events_count && event == (all_events + idx)) {
+ if (idx < events_count && event == all_events[idx]) {
idx++;
if (idx == events_count)
return NULL;
- return (all_events + idx);
+ return all_events[idx];
}
for (idx = 1; idx < events_count; idx++) {
- if (event == (all_events + (idx - 1)))
- return (all_events + idx);
+ if (event == all_events[idx - 1])
+ return all_events[idx];
}
return NULL;
}
next prev parent reply other threads:[~2019-10-17 18:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-17 15:42 [BUG] libtraceevent: perf script -g python segfaults Arnaldo Carvalho de Melo
2019-10-17 17:45 ` Steven Rostedt
2019-10-17 18:38 ` Steven Rostedt [this message]
2019-10-17 18:41 ` Steven Rostedt
2019-10-17 19:28 ` Arnaldo Carvalho de Melo
2019-10-17 19:37 ` Steven Rostedt
2019-10-17 19:49 ` Arnaldo Carvalho de Melo
2019-10-17 19:51 ` Arnaldo Carvalho de Melo
2019-10-21 23:19 ` [tip: perf/core] perf scripting engines: Iterate on tep event arrays directly tip-bot2 for Steven Rostedt (VMware)
2019-11-06 18:14 ` [tip: perf/urgent] " tip-bot2 for Steven Rostedt (VMware)
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