diff options
Diffstat (limited to 'tools/perf/util/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 9df9818e3701..22e43a57dc95 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -648,8 +648,9 @@ struct tep_event *evsel__tp_format(struct evsel *evsel) if (IS_ERR(tp_format)) { int err = -PTR_ERR(evsel->tp_format); - pr_err("Error getting tracepoint format '%s' '%s'(%d)\n", - evsel__name(evsel), strerror(err), err); + errno = err; + pr_err("Error getting tracepoint format '%s': %m\n", + evsel__name(evsel)); return NULL; } evsel->tp_format = tp_format; @@ -2750,8 +2751,8 @@ retry_open: PERF_EVENT_IOC_SET_BPF, bpf_fd); if (err && errno != EEXIST) { - pr_err("failed to attach bpf fd %d: %s\n", - bpf_fd, strerror(errno)); + pr_err("failed to attach bpf fd %d: %m\n", + bpf_fd); err = -EINVAL; goto out_close; } @@ -3815,7 +3816,6 @@ int evsel__open_strerror(struct evsel *evsel, struct target *target, int err, char *msg, size_t size) { struct perf_pmu *pmu; - char sbuf[STRERR_BUFSIZE]; int printed = 0, enforced = 0; int ret; @@ -3948,10 +3948,11 @@ int evsel__open_strerror(struct evsel *evsel, struct target *target, if (ret) return ret; + errno = err; return scnprintf(msg, size, - "The sys_perf_event_open() syscall returned with %d (%s) for event (%s).\n" - "\"dmesg | grep -i perf\" may provide additional information.\n", - err, str_error_r(err, sbuf, sizeof(sbuf)), evsel__name(evsel)); + "The sys_perf_event_open() syscall failed for event (%s): %m\n" + "\"dmesg | grep -i perf\" may provide additional information.\n", + evsel__name(evsel)); } struct perf_session *evsel__session(struct evsel *evsel) |