diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2009-12-28 22:48:33 -0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-12-30 11:59:57 +0100 |
| commit | ae99fb2c335ef018520950ddc9692faacab39cf2 (patch) | |
| tree | 9476516a203657b118f878d8ca6b4d0793a12c1e /tools/perf | |
| parent | 769885f372300a7fcfb9e54e4e2990718d40b529 (diff) | |
perf header: perf_header__push_event() shouldn't die
Just propagate eventual errors.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1262047716-23171-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/header.c | 16 | ||||
| -rw-r--r-- | tools/perf/util/header.h | 2 | ||||
| -rw-r--r-- | tools/perf/util/parse-events.c | 18 |
3 files changed, 22 insertions, 14 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 6b3cb94e8a2..709e3252f04 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -105,24 +105,28 @@ struct perf_trace_event_type { static int event_count; static struct perf_trace_event_type *events; -void perf_header__push_event(u64 id, const char *name) +int perf_header__push_event(u64 id, const char *name) { if (strlen(name) > MAX_EVENT_NAME) pr_warning("Event %s will be truncated\n", name); if (!events) { events = malloc(sizeof(struct perf_trace_event_type)); - if (!events) - die("nomem"); + if (events == NULL) + return -ENOMEM; } else { - events = realloc(events, (event_count + 1) * sizeof(struct perf_trace_event_type)); - if (!events) - die("nomem"); + struct perf_trace_event_type *nevents; + + nevents = realloc(events, (event_count + 1) * sizeof(*events)); + if (nevents == NULL) + return -ENOMEM; + events = nevents; } memset(&events[event_count], 0, sizeof(struct perf_trace_event_type)); events[event_count].event_id = id; strncpy(events[event_count].name, name, MAX_EVENT_NAME - 1); event_count++; + return 0; } char *perf_header__find_event(u64 id) diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h index d118d05d3ab..2b69aab67e3 100644 --- a/tools/perf/util/header.h +++ b/tools/perf/util/header.h @@ -64,7 +64,7 @@ int perf_header__write(struct perf_header *self, int fd, bool at_exit); int perf_header__add_attr(struct perf_header *self, struct perf_header_attr *attr); -void perf_header__push_event(u64 id, const char *name); +int perf_header__push_event(u64 id, const char *name); char *perf_header__find_event(u64 id); struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr); diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index dc585a835ca..609d5a9470c 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -753,11 +753,11 @@ modifier: return ret; } -static void store_event_type(const char *orgname) +static int store_event_type(const char *orgname) { char filename[PATH_MAX], *c; FILE *file; - int id; + int id, n; sprintf(filename, "%s/", debugfs_path); strncat(filename, orgname, strlen(orgname)); @@ -769,11 +769,14 @@ static void store_event_type(const char *orgname) file = fopen(filename, "r"); if (!file) - return; - if (fscanf(file, "%i", &id) < 1) - die("cannot store event ID"); + return 0; + n = fscanf(file, "%i", &id); fclose(file); - perf_header__push_event(id, orgname); + if (n < 1) { + pr_err("cannot store event ID\n"); + return -EINVAL; + } + return perf_header__push_event(id, orgname); } int parse_events(const struct option *opt __used, const char *str, int unset __used) @@ -782,7 +785,8 @@ int parse_events(const struct option *opt __used, const char *str, int unset __u enum event_result ret; if (strchr(str, ':')) - store_event_type(str); + if (store_event_type(str) < 0) + return -1; for (;;) { if (nr_counters == MAX_COUNTERS) |