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perf record: Release resources at exit 

So that we can reduce the noise on valgrind when looking for memory
leaks.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2010-07-29 14:08:55 -03:00
parent 8c31a1e049
commit 39d17dacb3
1 changed files with 26 additions and 6 deletions
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32
tools/perf/builtin-record.c
View File

@ -439,6 +439,7 @@ static void atexit_header(void)
process_buildids(); process_buildids();
perf_header__write(&session->header, output, true); perf_header__write(&session->header, output, true);
perf_session__delete(session);
} }
} }
@ -558,12 +559,15 @@ static int __cmd_record(int argc, const char **argv)
if (!file_new) { if (!file_new) {
err = perf_header__read(session, output); err = perf_header__read(session, output);
if (err < 0) if (err < 0)
return err; goto out_delete_session;
} }
if (have_tracepoints(attrs, nr_counters)) if (have_tracepoints(attrs, nr_counters))
perf_header__set_feat(&session->header, HEADER_TRACE_INFO); perf_header__set_feat(&session->header, HEADER_TRACE_INFO);
/*
* perf_session__delete(session) will be called at atexit_header()
*/
atexit(atexit_header); atexit(atexit_header);
if (forks) { if (forks) {
@ -768,6 +772,10 @@ static int __cmd_record(int argc, const char **argv)
bytes_written / 24); bytes_written / 24);
return 0; return 0;
out_delete_session:
perf_session__delete(session);
return err;
} }
static const char * const record_usage[] = { static const char * const record_usage[] = {
@ -824,7 +832,7 @@ static const struct option options[] = {
int cmd_record(int argc, const char **argv, const char *prefix __used) int cmd_record(int argc, const char **argv, const char *prefix __used)
{ {
int i,j; int i, j, err = -ENOMEM;
argc = parse_options(argc, argv, options, record_usage, argc = parse_options(argc, argv, options, record_usage,
PARSE_OPT_STOP_AT_NON_OPTION); PARSE_OPT_STOP_AT_NON_OPTION);
@ -873,13 +881,13 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
for (j = 0; j < MAX_COUNTERS; j++) { for (j = 0; j < MAX_COUNTERS; j++) {
fd[i][j] = malloc(sizeof(int)*thread_num); fd[i][j] = malloc(sizeof(int)*thread_num);
if (!fd[i][j]) if (!fd[i][j])
return -ENOMEM; goto out_free_fd;
} }
} }
event_array = malloc( event_array = malloc(
sizeof(struct pollfd)*MAX_NR_CPUS*MAX_COUNTERS*thread_num); sizeof(struct pollfd)*MAX_NR_CPUS*MAX_COUNTERS*thread_num);
if (!event_array) if (!event_array)
return -ENOMEM; goto out_free_fd;
if (user_interval != ULLONG_MAX) if (user_interval != ULLONG_MAX)
default_interval = user_interval; default_interval = user_interval;
@ -895,8 +903,20 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
default_interval = freq; default_interval = freq;
} else { } else {
fprintf(stderr, "frequency and count are zero, aborting\n"); fprintf(stderr, "frequency and count are zero, aborting\n");
exit(EXIT_FAILURE); err = -EINVAL;
goto out_free_event_array;
} }
return __cmd_record(argc, argv); err = __cmd_record(argc, argv);
out_free_event_array:
free(event_array);
out_free_fd:
for (i = 0; i < MAX_NR_CPUS; i++) {
for (j = 0; j < MAX_COUNTERS; j++)
free(fd[i][j]);
}
free(all_tids);
all_tids = NULL;
return err;
} }