diff options
Diffstat (limited to 'tools/perf/builtin-report.c')
| -rw-r--r-- | tools/perf/builtin-report.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 7a6577bf9a4..37b26ecb0d0 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -1366,11 +1366,13 @@ process_event(event_t *event, unsigned long offset, unsigned long head) return 0; } +static struct perf_file_header file_header; + static int __cmd_report(void) { int ret, rc = EXIT_FAILURE; unsigned long offset = 0; - unsigned long head = 0; + unsigned long head = sizeof(file_header); struct stat stat; event_t *event; uint32_t size; @@ -1398,6 +1400,14 @@ static int __cmd_report(void) exit(0); } + read(input, &file_header, sizeof(file_header)); + + if (sort__has_parent && + !(file_header.sample_type & PERF_SAMPLE_CALLCHAIN)) { + fprintf(stderr, "selected --sort parent, but no callchain data\n"); + exit(-1); + } + if (load_kernel() < 0) { perror("failed to load kernel symbols"); return EXIT_FAILURE; @@ -1469,9 +1479,13 @@ more: head += size; + if (offset + head >= sizeof(file_header) + file_header.data_size) + goto done; + if (offset + head < stat.st_size) goto more; +done: rc = EXIT_SUCCESS; close(input); |