perf thread_map: Enumerate all threads from /proc

This patch calls thread_map__new_all_cpus() to enumerate all threads
from /proc if per-thread flag is enabled.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1512482591-4646-10-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c
index dbcb6a1..4de1939 100644 (file)
--- a/tools/perf/tests/thread-map.c
+++ b/tools/perf/tests/thread-map.c
@@ -105,7 +105,7 @@ int test__thread_map_remove(struct test *test __maybe_unused, int subtest __mayb
        TEST_ASSERT_VAL("failed to allocate map string",
                        asprintf(&str, "%d,%d", getpid(), getppid()) >= 0);
 
-       threads = thread_map__new_str(str, NULL, 0);
+       threads = thread_map__new_str(str, NULL, 0, false);
 
        TEST_ASSERT_VAL("failed to allocate thread_map",
                        threads);

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 3570355..f0a5e09 100644 (file)
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1105,7 +1105,8 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
        struct cpu_map *cpus;
        struct thread_map *threads;
 
-       threads = thread_map__new_str(target->pid, target->tid, target->uid);
+       threads = thread_map__new_str(target->pid, target->tid, target->uid,
+                                     target->per_thread);
 
        if (!threads)
                return -1;

diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index 2b65385..3e1038f 100644 (file)
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -323,7 +323,7 @@ out_free_threads:
 }
 
 struct thread_map *thread_map__new_str(const char *pid, const char *tid,
-                                      uid_t uid)
+                                      uid_t uid, bool per_thread)
 {
        if (pid)
                return thread_map__new_by_pid_str(pid);
@@ -331,6 +331,9 @@ struct thread_map *thread_map__new_str(const char *pid, const char *tid,
        if (!tid && uid != UINT_MAX)
                return thread_map__new_by_uid(uid);
 
+       if (per_thread)
+               return thread_map__new_all_cpus();
+
        return thread_map__new_by_tid_str(tid);
 }
 

diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index 07a765f..0a806b9 100644 (file)
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -31,7 +31,7 @@ struct thread_map *thread_map__get(struct thread_map *map);
 void thread_map__put(struct thread_map *map);
 
 struct thread_map *thread_map__new_str(const char *pid,
-               const char *tid, uid_t uid);
+               const char *tid, uid_t uid, bool per_thread);
 
 struct thread_map *thread_map__new_by_tid_str(const char *tid_str);