diff options
Diffstat (limited to 'tools/perf/builtin-inject.c')
| -rw-r--r-- | tools/perf/builtin-inject.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index 2023b7a0daa6..c8cf2fdd9cff 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -47,7 +47,7 @@ struct guest_event { struct perf_sample sample; union perf_event *event; - char event_buf[PERF_SAMPLE_MAX_SIZE]; + char *event_buf; }; struct guest_id { @@ -1374,11 +1374,19 @@ static void guest_session__convert_time(struct guest_session *gs, u64 guest_time static int guest_session__fetch(struct guest_session *gs) { - void *buf = gs->ev.event_buf; - struct perf_event_header *hdr = buf; + void *buf; + struct perf_event_header *hdr; size_t hdr_sz = sizeof(*hdr); ssize_t ret; + buf = gs->ev.event_buf; + if (!buf) { + buf = malloc(PERF_SAMPLE_MAX_SIZE); + if (!buf) + return -ENOMEM; + gs->ev.event_buf = buf; + } + hdr = buf; ret = readn(gs->tmp_fd, buf, hdr_sz); if (ret < 0) return ret; @@ -2401,5 +2409,6 @@ out_close_output: perf_data__close(&inject.output); free(inject.itrace_synth_opts.vm_tm_corr_args); free(inject.event_copy); + free(inject.guest_session.ev.event_buf); return ret; } |