From 39d17dacb3c25df878b56aa80a170d6088e041f9 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 29 Jul 2010 14:08:55 -0300 Subject: [PATCH] perf record: Release resources at exit So that we can reduce the noise on valgrind when looking for memory leaks. Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Stephane Eranian LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 32 ++++++++++++++++++++++++++------ 1 file changed, 26 insertions(+), 6 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index b93879677cca..5ae0d93d8597 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -439,6 +439,7 @@ static void atexit_header(void) process_buildids(); 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) { err = perf_header__read(session, output); if (err < 0) - return err; + goto out_delete_session; } if (have_tracepoints(attrs, nr_counters)) perf_header__set_feat(&session->header, HEADER_TRACE_INFO); + /* + * perf_session__delete(session) will be called at atexit_header() + */ atexit(atexit_header); if (forks) { @@ -768,6 +772,10 @@ static int __cmd_record(int argc, const char **argv) bytes_written / 24); return 0; + +out_delete_session: + perf_session__delete(session); + return err; } 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 i,j; + int i, j, err = -ENOMEM; argc = parse_options(argc, argv, options, record_usage, 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++) { fd[i][j] = malloc(sizeof(int)*thread_num); if (!fd[i][j]) - return -ENOMEM; + goto out_free_fd; } } event_array = malloc( sizeof(struct pollfd)*MAX_NR_CPUS*MAX_COUNTERS*thread_num); if (!event_array) - return -ENOMEM; + goto out_free_fd; if (user_interval != ULLONG_MAX) default_interval = user_interval; @@ -895,8 +903,20 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) default_interval = freq; } else { 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; } -- 2.34.1