diff options
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 4ef78a5e6f32..0345aad8eba5 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -43,6 +43,7 @@ static int call_graph = 0; static int verbose = 0; static int inherit_stat = 0; static int no_samples = 0; +static int sample_address = 0; static long samples; static struct timeval last_read; @@ -313,6 +314,10 @@ static void pid_synthesize_mmap_samples(pid_t pid) if (*pbf == 'x') { /* vm_exec */ char *execname = strchr(bf, '/'); + /* Catch VDSO */ + if (execname == NULL) + execname = strstr(bf, "[vdso]"); + if (execname == NULL) continue; @@ -401,9 +406,13 @@ static void create_counter(int counter, int cpu, pid_t pid) if (inherit_stat) attr->inherit_stat = 1; + if (sample_address) + attr->sample_type |= PERF_SAMPLE_ADDR; + if (call_graph) attr->sample_type |= PERF_SAMPLE_CALLCHAIN; + attr->mmap = track; attr->comm = track; attr->inherit = (cpu < 0) && inherit; @@ -516,10 +525,14 @@ static int __cmd_record(int argc, const char **argv) signal(SIGCHLD, sig_handler); signal(SIGINT, sig_handler); - if (!stat(output_name, &st) && !force && !append_file) { - fprintf(stderr, "Error, output file %s exists, use -A to append or -f to overwrite.\n", - output_name); - exit(-1); + if (!stat(output_name, &st) && st.st_size) { + if (!force && !append_file) { + fprintf(stderr, "Error, output file %s exists, use -A to append or -f to overwrite.\n", + output_name); + exit(-1); + } + } else { + append_file = 0; } flags = O_CREAT|O_RDWR; @@ -645,6 +658,8 @@ static const struct option options[] = { "be more verbose (show counter open errors, etc)"), OPT_BOOLEAN('s', "stat", &inherit_stat, "per thread counts"), + OPT_BOOLEAN('d', "data", &sample_address, + "Sample addresses"), OPT_BOOLEAN('n', "no-samples", &no_samples, "don't sample"), OPT_END() @@ -654,7 +669,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) { int counter; - argc = parse_options(argc, argv, options, record_usage, 0); + argc = parse_options(argc, argv, options, record_usage, + PARSE_OPT_STOP_AT_NON_OPTION); if (!argc && target_pid == -1 && !system_wide) usage_with_options(record_usage, options); |