Commit-ID: 4b49cce25e719587e934b745fe9bbb5bc8c4ba29 Gitweb: https://git.kernel.org/tip/4b49cce25e719587e934b745fe9bbb5bc8c4ba29 Author: Jiri Olsa <jo...@kernel.org> AuthorDate: Sun, 21 Jul 2019 13:24:19 +0200 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 29 Jul 2019 18:34:44 -0300
libperf: Add perf_thread_map__new_dummy() function Moving the following functions: thread_map__new_dummy() thread_map__realloc() thread_map__set_pid() to libperf with the following names: perf_thread_map__new_dummy() perf_thread_map__realloc() perf_thread_map__set_pid() the other 2 functions are dependencies of the perf_thread_map__new_dummy() function. The perf_thread_map__realloc() function is not exported. Signed-off-by: Jiri Olsa <jo...@kernel.org> Cc: Alexander Shishkin <alexander.shish...@linux.intel.com> Cc: Alexey Budankov <alexey.budan...@linux.intel.com> Cc: Andi Kleen <a...@linux.intel.com> Cc: Michael Petlan <mpet...@redhat.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/20190721112506.12306-33-jo...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/lib/include/internal/threadmap.h | 2 + tools/perf/lib/include/perf/threadmap.h | 7 ++++ tools/perf/lib/libperf.map | 2 + tools/perf/lib/threadmap.c | 43 +++++++++++++++++++++ tools/perf/tests/openat-syscall-tp-fields.c | 2 +- tools/perf/tests/thread-map.c | 2 +- tools/perf/util/evlist.c | 4 +- tools/perf/util/thread_map.c | 59 ++++++----------------------- tools/perf/util/thread_map.h | 7 +--- 9 files changed, 71 insertions(+), 57 deletions(-) diff --git a/tools/perf/lib/include/internal/threadmap.h b/tools/perf/lib/include/internal/threadmap.h index c8088005a9ab..df748baf9eda 100644 --- a/tools/perf/lib/include/internal/threadmap.h +++ b/tools/perf/lib/include/internal/threadmap.h @@ -18,4 +18,6 @@ struct perf_thread_map { struct thread_map_data map[]; }; +struct perf_thread_map *perf_thread_map__realloc(struct perf_thread_map *map, int nr); + #endif /* __LIBPERF_INTERNAL_THREADMAP_H */ diff --git a/tools/perf/lib/include/perf/threadmap.h b/tools/perf/lib/include/perf/threadmap.h index dc3a3837b56f..34ed7f587101 100644 --- a/tools/perf/lib/include/perf/threadmap.h +++ b/tools/perf/lib/include/perf/threadmap.h @@ -2,6 +2,13 @@ #ifndef __LIBPERF_THREADMAP_H #define __LIBPERF_THREADMAP_H +#include <perf/core.h> +#include <sys/types.h> + struct perf_thread_map; +LIBPERF_API struct perf_thread_map *perf_thread_map__new_dummy(void); + +LIBPERF_API void perf_thread_map__set_pid(struct perf_thread_map *map, int thread, pid_t pid); + #endif /* __LIBPERF_THREADMAP_H */ diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map index 76ce3bc59dd8..6b4ec1c4d3f3 100644 --- a/tools/perf/lib/libperf.map +++ b/tools/perf/lib/libperf.map @@ -4,6 +4,8 @@ LIBPERF_0.0.1 { perf_cpu_map__dummy_new; perf_cpu_map__get; perf_cpu_map__put; + perf_thread_map__new_dummy; + perf_thread_map__set_pid; local: *; }; diff --git a/tools/perf/lib/threadmap.c b/tools/perf/lib/threadmap.c index 163dc609b909..23e628a1437a 100644 --- a/tools/perf/lib/threadmap.c +++ b/tools/perf/lib/threadmap.c @@ -3,3 +3,46 @@ #include <stdlib.h> #include <linux/refcount.h> #include <internal/threadmap.h> +#include <string.h> + +static void perf_thread_map__reset(struct perf_thread_map *map, int start, int nr) +{ + size_t size = (nr - start) * sizeof(map->map[0]); + + memset(&map->map[start], 0, size); + map->err_thread = -1; +} + +struct perf_thread_map *perf_thread_map__realloc(struct perf_thread_map *map, int nr) +{ + size_t size = sizeof(*map) + sizeof(map->map[0]) * nr; + int start = map ? map->nr : 0; + + map = realloc(map, size); + /* + * We only realloc to add more items, let's reset new items. + */ + if (map) + perf_thread_map__reset(map, start, nr); + + return map; +} + +#define thread_map__alloc(__nr) perf_thread_map__realloc(NULL, __nr) + +void perf_thread_map__set_pid(struct perf_thread_map *map, int thread, pid_t pid) +{ + map->map[thread].pid = pid; +} + +struct perf_thread_map *perf_thread_map__new_dummy(void) +{ + struct perf_thread_map *threads = thread_map__alloc(1); + + if (threads != NULL) { + perf_thread_map__set_pid(threads, 0, -1); + threads->nr = 1; + refcount_set(&threads->refcnt, 1); + } + return threads; +} diff --git a/tools/perf/tests/openat-syscall-tp-fields.c b/tools/perf/tests/openat-syscall-tp-fields.c index c7182b7840e5..1de79208e690 100644 --- a/tools/perf/tests/openat-syscall-tp-fields.c +++ b/tools/perf/tests/openat-syscall-tp-fields.c @@ -58,7 +58,7 @@ int test__syscall_openat_tp_fields(struct test *test __maybe_unused, int subtest perf_evsel__config(evsel, &opts, NULL); - thread_map__set_pid(evlist->threads, 0, getpid()); + perf_thread_map__set_pid(evlist->threads, 0, getpid()); err = evlist__open(evlist); if (err < 0) { diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c index 367dfe708e4c..73bc404ed390 100644 --- a/tools/perf/tests/thread-map.c +++ b/tools/perf/tests/thread-map.c @@ -35,7 +35,7 @@ int test__thread_map(struct test *test __maybe_unused, int subtest __maybe_unuse thread_map__put(map); /* test dummy pid */ - map = thread_map__new_dummy(); + map = perf_thread_map__new_dummy(); TEST_ASSERT_VAL("failed to alloc map", map); thread_map__read_comms(map); diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 35020d50f51e..88d131769df4 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1375,7 +1375,7 @@ static int perf_evlist__create_syswide_maps(struct evlist *evlist) if (!cpus) goto out; - threads = thread_map__new_dummy(); + threads = perf_thread_map__new_dummy(); if (!threads) goto out_put; @@ -1504,7 +1504,7 @@ int perf_evlist__prepare_workload(struct evlist *evlist, struct target *target, __func__, __LINE__); goto out_close_pipes; } - thread_map__set_pid(evlist->threads, 0, evlist->workload.pid); + perf_thread_map__set_pid(evlist->threads, 0, evlist->workload.pid); } close(child_ready_pipe[1]); diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c index e89496c39d58..06dd9f2e4ce5 100644 --- a/tools/perf/util/thread_map.c +++ b/tools/perf/util/thread_map.c @@ -28,30 +28,7 @@ static int filter(const struct dirent *dir) return 1; } -static void thread_map__reset(struct perf_thread_map *map, int start, int nr) -{ - size_t size = (nr - start) * sizeof(map->map[0]); - - memset(&map->map[start], 0, size); - map->err_thread = -1; -} - -static struct perf_thread_map *thread_map__realloc(struct perf_thread_map *map, int nr) -{ - size_t size = sizeof(*map) + sizeof(map->map[0]) * nr; - int start = map ? map->nr : 0; - - map = realloc(map, size); - /* - * We only realloc to add more items, let's reset new items. - */ - if (map) - thread_map__reset(map, start, nr); - - return map; -} - -#define thread_map__alloc(__nr) thread_map__realloc(NULL, __nr) +#define thread_map__alloc(__nr) perf_thread_map__realloc(NULL, __nr) struct perf_thread_map *thread_map__new_by_pid(pid_t pid) { @@ -69,7 +46,7 @@ struct perf_thread_map *thread_map__new_by_pid(pid_t pid) threads = thread_map__alloc(items); if (threads != NULL) { for (i = 0; i < items; i++) - thread_map__set_pid(threads, i, atoi(namelist[i]->d_name)); + perf_thread_map__set_pid(threads, i, atoi(namelist[i]->d_name)); threads->nr = items; refcount_set(&threads->refcnt, 1); } @@ -86,7 +63,7 @@ struct perf_thread_map *thread_map__new_by_tid(pid_t tid) struct perf_thread_map *threads = thread_map__alloc(1); if (threads != NULL) { - thread_map__set_pid(threads, 0, tid); + perf_thread_map__set_pid(threads, 0, tid); threads->nr = 1; refcount_set(&threads->refcnt, 1); } @@ -142,7 +119,7 @@ static struct perf_thread_map *__thread_map__new_all_cpus(uid_t uid) if (grow) { struct perf_thread_map *tmp; - tmp = thread_map__realloc(threads, max_threads); + tmp = perf_thread_map__realloc(threads, max_threads); if (tmp == NULL) goto out_free_namelist; @@ -150,8 +127,8 @@ static struct perf_thread_map *__thread_map__new_all_cpus(uid_t uid) } for (i = 0; i < items; i++) { - thread_map__set_pid(threads, threads->nr + i, - atoi(namelist[i]->d_name)); + perf_thread_map__set_pid(threads, threads->nr + i, + atoi(namelist[i]->d_name)); } for (i = 0; i < items; i++) @@ -233,14 +210,14 @@ static struct perf_thread_map *thread_map__new_by_pid_str(const char *pid_str) goto out_free_threads; total_tasks += items; - nt = thread_map__realloc(threads, total_tasks); + nt = perf_thread_map__realloc(threads, total_tasks); if (nt == NULL) goto out_free_namelist; threads = nt; for (i = 0; i < items; i++) { - thread_map__set_pid(threads, j++, atoi(namelist[i]->d_name)); + perf_thread_map__set_pid(threads, j++, atoi(namelist[i]->d_name)); zfree(&namelist[i]); } threads->nr = total_tasks; @@ -263,18 +240,6 @@ out_free_threads: goto out; } -struct perf_thread_map *thread_map__new_dummy(void) -{ - struct perf_thread_map *threads = thread_map__alloc(1); - - if (threads != NULL) { - thread_map__set_pid(threads, 0, -1); - threads->nr = 1; - refcount_set(&threads->refcnt, 1); - } - return threads; -} - struct perf_thread_map *thread_map__new_by_tid_str(const char *tid_str) { struct perf_thread_map *threads = NULL, *nt; @@ -287,7 +252,7 @@ struct perf_thread_map *thread_map__new_by_tid_str(const char *tid_str) /* perf-stat expects threads to be generated even if tid not given */ if (!tid_str) - return thread_map__new_dummy(); + return perf_thread_map__new_dummy(); slist = strlist__new(tid_str, &slist_config); if (!slist) @@ -304,13 +269,13 @@ struct perf_thread_map *thread_map__new_by_tid_str(const char *tid_str) continue; ntasks++; - nt = thread_map__realloc(threads, ntasks); + nt = perf_thread_map__realloc(threads, ntasks); if (nt == NULL) goto out_free_threads; threads = nt; - thread_map__set_pid(threads, ntasks - 1, tid); + perf_thread_map__set_pid(threads, ntasks - 1, tid); threads->nr = ntasks; } out: @@ -437,7 +402,7 @@ static void thread_map__copy_event(struct perf_thread_map *threads, threads->nr = (int) event->nr; for (i = 0; i < event->nr; i++) { - thread_map__set_pid(threads, i, (pid_t) event->entries[i].pid); + perf_thread_map__set_pid(threads, i, (pid_t) event->entries[i].pid); threads->map[i].comm = strndup(event->entries[i].comm, 16); } diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h index 5a7be6f8934f..94a1f9565f5e 100644 --- a/tools/perf/util/thread_map.h +++ b/tools/perf/util/thread_map.h @@ -6,6 +6,7 @@ #include <stdio.h> #include <linux/refcount.h> #include <internal/threadmap.h> +#include <perf/threadmap.h> struct thread_map_event; @@ -37,12 +38,6 @@ static inline pid_t thread_map__pid(struct perf_thread_map *map, int thread) return map->map[thread].pid; } -static inline void -thread_map__set_pid(struct perf_thread_map *map, int thread, pid_t pid) -{ - map->map[thread].pid = pid; -} - static inline char *thread_map__comm(struct perf_thread_map *map, int thread) { return map->map[thread].comm;
