perf evsel: Fix order of event list deletion
authorArnaldo Carvalho de Melo <acme@redhat.com>
Tue, 11 Jan 2011 14:42:00 +0000 (12:42 -0200)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Tue, 11 Jan 2011 14:51:03 +0000 (12:51 -0200)
commitbd3bfe9eda94d3c050830217c1e1c338808de5b2
treed2be87a7e681192994c2434592dac685f5178cc9
parent3d03e2ea74103a50c23d6ab1906cf73399c0dafb
perf evsel: Fix order of event list deletion

We need to defer calling perf_evsel_list__delete() till after atexit
registered routines, because we need to traverse the events being
recorded at that time at least on 'perf record'.

This fixes the problem reported by Thomas Renninger where cmd_record
called by cmd_timechart would not write the tracing data to the perf.data
file header because the evsel_list at atexit (control+C on 'perf timechart
record') time would be empty, being already deleted by run_builtin(),
and thus 'perf timechart' when trying to process such perf.data file would
die with:

"no trace data in the file"

Problem introduced in 70d544d.

Reported-by: Thomas Renninger <trenn@suse.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-record.c
tools/perf/builtin-stat.c
tools/perf/builtin-top.c
tools/perf/perf.c