diff options
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index e2cebc0..d7ebbd7 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -461,7 +461,8 @@ static void atexit_header(void) { file_header.data_size += bytes_written; - pwrite(output, &file_header, sizeof(file_header), 0); + if (pwrite(output, &file_header, sizeof(file_header), 0) == -1) + perror("failed to write on file headers"); } static int __cmd_record(int argc, const char **argv) @@ -500,7 +501,11 @@ static int __cmd_record(int argc, const char **argv) } if (!file_new) { - read(output, &file_header, sizeof(file_header)); + if (read(output, &file_header, sizeof(file_header)) == -1) { + perror("failed to read file headers"); + exit(-1); + } + lseek(output, file_header.data_size, SEEK_CUR); } |
