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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-01-03 20:53:33 +0100 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-01-04 03:24:16 +0100 |
commit | 5c98d466e49267a9221f30958d45cd06f794269a (patch) | |
tree | 0085e9391dc68d00b8260d9d36e8b0d1baf66098 /tools/perf/builtin-record.c | |
parent | perf tools: Refactor cpumap to hold nr and the map (diff) | |
download | linux-5c98d466e49267a9221f30958d45cd06f794269a.tar.xz linux-5c98d466e49267a9221f30958d45cd06f794269a.zip |
perf tools: Refactor all_tids to hold nr and the map
So that later, we can pass the thread_map instance instead of
(thread_num, thread_map) for things like perf_evsel__open and friends,
just like was done with cpu_map.
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-record.c')
-rw-r--r-- | tools/perf/builtin-record.c | 39 |
1 files changed, 15 insertions, 24 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 220e6e7f0b97..7bc049035484 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -54,8 +54,7 @@ static bool sample_id_all_avail = true; static bool system_wide = false; static pid_t target_pid = -1; static pid_t target_tid = -1; -static pid_t *all_tids = NULL; -static int thread_num = 0; +static struct thread_map *threads; static pid_t child_pid = -1; static bool no_inherit = false; static enum write_mode_t write_mode = WRITE_FORCE; @@ -318,9 +317,9 @@ static void create_counter(struct perf_evsel *evsel, int cpu) retry_sample_id: attr->sample_id_all = sample_id_all_avail ? 1 : 0; - for (thread_index = 0; thread_index < thread_num; thread_index++) { + for (thread_index = 0; thread_index < threads->nr; thread_index++) { try_again: - FD(evsel, nr_cpu, thread_index) = sys_perf_event_open(attr, all_tids[thread_index], cpu, group_fd, 0); + FD(evsel, nr_cpu, thread_index) = sys_perf_event_open(attr, threads->map[thread_index], cpu, group_fd, 0); if (FD(evsel, nr_cpu, thread_index) < 0) { int err = errno; @@ -653,7 +652,7 @@ static int __cmd_record(int argc, const char **argv) } if (!system_wide && target_tid == -1 && target_pid == -1) - all_tids[0] = child_pid; + threads->map[0] = child_pid; close(child_ready_pipe[1]); close(go_pipe[0]); @@ -793,7 +792,7 @@ static int __cmd_record(int argc, const char **argv) list_for_each_entry(pos, &evsel_list, node) { for (thread = 0; - thread < thread_num; + thread < threads->nr; thread++) ioctl(FD(pos, i, thread), PERF_EVENT_IOC_DISABLE); @@ -910,21 +909,13 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) goto out_symbol_exit; } - if (target_pid != -1) { + if (target_pid != -1) target_tid = target_pid; - thread_num = find_all_tid(target_pid, &all_tids); - if (thread_num <= 0) { - fprintf(stderr, "Can't find all threads of pid %d\n", - target_pid); - usage_with_options(record_usage, record_options); - } - } else { - all_tids=malloc(sizeof(pid_t)); - if (!all_tids) - goto out_symbol_exit; - all_tids[0] = target_tid; - thread_num = 1; + threads = thread_map__new(target_pid, target_tid); + if (threads == NULL) { + pr_err("Problems finding threads of monitor\n"); + usage_with_options(record_usage, record_options); } cpus = cpu_map__new(cpu_list); @@ -934,11 +925,11 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) } list_for_each_entry(pos, &evsel_list, node) { - if (perf_evsel__alloc_fd(pos, cpus->nr, thread_num) < 0) + if (perf_evsel__alloc_fd(pos, cpus->nr, threads->nr) < 0) goto out_free_fd; } - event_array = malloc( - sizeof(struct pollfd)*MAX_NR_CPUS*MAX_COUNTERS*thread_num); + event_array = malloc((sizeof(struct pollfd) * MAX_NR_CPUS * + MAX_COUNTERS * threads->nr)); if (!event_array) goto out_free_fd; @@ -965,8 +956,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) out_free_event_array: free(event_array); out_free_fd: - free(all_tids); - all_tids = NULL; + thread_map__delete(threads); + threads = NULL; out_symbol_exit: symbol__exit(); return err; |