aboutsummaryrefslogtreecommitdiff
path: root/tools/perf/util
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/Build1
-rw-r--r--tools/perf/util/dso.c12
-rw-r--r--tools/perf/util/dso.h4
-rw-r--r--tools/perf/util/machine.c41
-rw-r--r--tools/perf/util/machine.h3
-rw-r--r--tools/perf/util/map.c34
-rw-r--r--tools/perf/util/map.h3
-rw-r--r--tools/perf/util/rwsem.c32
-rw-r--r--tools/perf/util/rwsem.h19
-rw-r--r--tools/perf/util/symbol.c8
-rw-r--r--tools/perf/util/thread.c4
-rw-r--r--tools/perf/util/trace-event-info.c1
-rw-r--r--tools/perf/util/trace-event-read.c1
-rw-r--r--tools/perf/util/util.c13
-rw-r--r--tools/perf/util/util.h5
-rw-r--r--tools/perf/util/vdso.c4
16 files changed, 128 insertions, 57 deletions
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 71ab8466714d..369c3163e68c 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -79,6 +79,7 @@ libperf-y += data.o
libperf-y += tsc.o
libperf-y += cloexec.o
libperf-y += call-path.o
+libperf-y += rwsem.o
libperf-y += thread-stack.o
libperf-$(CONFIG_AUXTRACE) += auxtrace.o
libperf-$(CONFIG_AUXTRACE) += intel-pt-decoder/
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index ffd723179a4b..339e52971380 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -1366,9 +1366,9 @@ void __dsos__add(struct dsos *dsos, struct dso *dso)
void dsos__add(struct dsos *dsos, struct dso *dso)
{
- pthread_rwlock_wrlock(&dsos->lock);
+ down_write(&dsos->lock);
__dsos__add(dsos, dso);
- pthread_rwlock_unlock(&dsos->lock);
+ up_write(&dsos->lock);
}
struct dso *__dsos__find(struct dsos *dsos, const char *name, bool cmp_short)
@@ -1387,9 +1387,9 @@ struct dso *__dsos__find(struct dsos *dsos, const char *name, bool cmp_short)
struct dso *dsos__find(struct dsos *dsos, const char *name, bool cmp_short)
{
struct dso *dso;
- pthread_rwlock_rdlock(&dsos->lock);
+ down_read(&dsos->lock);
dso = __dsos__find(dsos, name, cmp_short);
- pthread_rwlock_unlock(&dsos->lock);
+ up_read(&dsos->lock);
return dso;
}
@@ -1416,9 +1416,9 @@ struct dso *__dsos__findnew(struct dsos *dsos, const char *name)
struct dso *dsos__findnew(struct dsos *dsos, const char *name)
{
struct dso *dso;
- pthread_rwlock_wrlock(&dsos->lock);
+ down_write(&dsos->lock);
dso = dso__get(__dsos__findnew(dsos, name));
- pthread_rwlock_unlock(&dsos->lock);
+ up_write(&dsos->lock);
return dso;
}
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index f886141678eb..a2bbb21f301c 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -6,7 +6,7 @@
#include <linux/rbtree.h>
#include <sys/types.h>
#include <stdbool.h>
-#include <pthread.h>
+#include "rwsem.h"
#include <linux/types.h>
#include <linux/bitops.h>
#include "map.h"
@@ -129,7 +129,7 @@ struct dso_cache {
struct dsos {
struct list_head head;
struct rb_root root; /* rbtree root sorted by long name */
- pthread_rwlock_t lock;
+ struct rw_semaphore lock;
};
struct auxtrace_cache;
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index ddeea05eae86..585b4a3d64a4 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -30,7 +30,7 @@ static void dsos__init(struct dsos *dsos)
{
INIT_LIST_HEAD(&dsos->head);
dsos->root = RB_ROOT;
- pthread_rwlock_init(&dsos->lock, NULL);
+ init_rwsem(&dsos->lock);
}
static void machine__threads_init(struct machine *machine)
@@ -40,7 +40,7 @@ static void machine__threads_init(struct machine *machine)
for (i = 0; i < THREADS__TABLE_SIZE; i++) {
struct threads *threads = &machine->threads[i];
threads->entries = RB_ROOT;
- pthread_rwlock_init(&threads->lock, NULL);
+ init_rwsem(&threads->lock);
threads->nr = 0;
INIT_LIST_HEAD(&threads->dead);
threads->last_match = NULL;
@@ -130,7 +130,7 @@ static void dsos__purge(struct dsos *dsos)
{
struct dso *pos, *n;
- pthread_rwlock_wrlock(&dsos->lock);
+ down_write(&dsos->lock);
list_for_each_entry_safe(pos, n, &dsos->head, node) {
RB_CLEAR_NODE(&pos->rb_node);
@@ -139,13 +139,13 @@ static void dsos__purge(struct dsos *dsos)
dso__put(pos);
}
- pthread_rwlock_unlock(&dsos->lock);
+ up_write(&dsos->lock);
}
static void dsos__exit(struct dsos *dsos)
{
dsos__purge(dsos);
- pthread_rwlock_destroy(&dsos->lock);
+ exit_rwsem(&dsos->lock);
}
void machine__delete_threads(struct machine *machine)
@@ -155,7 +155,7 @@ void machine__delete_threads(struct machine *machine)
for (i = 0; i < THREADS__TABLE_SIZE; i++) {
struct threads *threads = &machine->threads[i];
- pthread_rwlock_wrlock(&threads->lock);
+ down_write(&threads->lock);
nd = rb_first(&threads->entries);
while (nd) {
struct thread *t = rb_entry(nd, struct thread, rb_node);
@@ -163,7 +163,7 @@ void machine__delete_threads(struct machine *machine)
nd = rb_next(nd);
__machine__remove_thread(machine, t, false);
}
- pthread_rwlock_unlock(&threads->lock);
+ up_write(&threads->lock);
}
}
@@ -180,7 +180,7 @@ void machine__exit(struct machine *machine)
for (i = 0; i < THREADS__TABLE_SIZE; i++) {
struct threads *threads = &machine->threads[i];
- pthread_rwlock_destroy(&threads->lock);
+ exit_rwsem(&threads->lock);
}
}
@@ -482,9 +482,9 @@ struct thread *machine__findnew_thread(struct machine *machine, pid_t pid,
struct threads *threads = machine__threads(machine, tid);
struct thread *th;
- pthread_rwlock_wrlock(&threads->lock);
+ down_write(&threads->lock);
th = __machine__findnew_thread(machine, pid, tid);
- pthread_rwlock_unlock(&threads->lock);
+ up_write(&threads->lock);
return th;
}
@@ -494,9 +494,9 @@ struct thread *machine__find_thread(struct machine *machine, pid_t pid,
struct threads *threads = machine__threads(machine, tid);
struct thread *th;
- pthread_rwlock_rdlock(&threads->lock);
+ down_read(&threads->lock);
th = ____machine__findnew_thread(machine, threads, pid, tid, false);
- pthread_rwlock_unlock(&threads->lock);
+ up_read(&threads->lock);
return th;
}
@@ -588,7 +588,7 @@ static struct dso *machine__findnew_module_dso(struct machine *machine,
{
struct dso *dso;
- pthread_rwlock_wrlock(&machine->dsos.lock);
+ down_write(&machine->dsos.lock);
dso = __dsos__find(&machine->dsos, m->name, true);
if (!dso) {
@@ -602,7 +602,7 @@ static struct dso *machine__findnew_module_dso(struct machine *machine,
dso__get(dso);
out_unlock:
- pthread_rwlock_unlock(&machine->dsos.lock);
+ up_write(&machine->dsos.lock);
return dso;
}
@@ -749,7 +749,8 @@ size_t machine__fprintf(struct machine *machine, FILE *fp)
for (i = 0; i < THREADS__TABLE_SIZE; i++) {
struct threads *threads = &machine->threads[i];
- pthread_rwlock_rdlock(&threads->lock);
+
+ down_read(&threads->lock);
ret = fprintf(fp, "Threads: %u\n", threads->nr);
@@ -759,7 +760,7 @@ size_t machine__fprintf(struct machine *machine, FILE *fp)
ret += thread__fprintf(pos, fp);
}
- pthread_rwlock_unlock(&threads->lock);
+ up_read(&threads->lock);
}
return ret;
}
@@ -1319,7 +1320,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine,
struct dso *kernel = NULL;
struct dso *dso;
- pthread_rwlock_rdlock(&machine->dsos.lock);
+ down_read(&machine->dsos.lock);
list_for_each_entry(dso, &machine->dsos.head, node) {
@@ -1349,7 +1350,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine,
break;
}
- pthread_rwlock_unlock(&machine->dsos.lock);
+ up_read(&machine->dsos.lock);
if (kernel == NULL)
kernel = machine__findnew_dso(machine, kmmap_prefix);
@@ -1513,7 +1514,7 @@ static void __machine__remove_thread(struct machine *machine, struct thread *th,
BUG_ON(refcount_read(&th->refcnt) == 0);
if (lock)
- pthread_rwlock_wrlock(&threads->lock);
+ down_write(&threads->lock);
rb_erase_init(&th->rb_node, &threads->entries);
RB_CLEAR_NODE(&th->rb_node);
--threads->nr;
@@ -1524,7 +1525,7 @@ static void __machine__remove_thread(struct machine *machine, struct thread *th,
*/
list_add_tail(&th->node, &threads->dead);
if (lock)
- pthread_rwlock_unlock(&threads->lock);
+ up_write(&threads->lock);
thread__put(th);
}
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index fe2f05848050..b1cd516f2025 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -6,6 +6,7 @@
#include "map.h"
#include "dso.h"
#include "event.h"
+#include "rwsem.h"
struct addr_location;
struct branch_stack;
@@ -28,7 +29,7 @@ struct vdso_info;
struct threads {
struct rb_root entries;
- pthread_rwlock_t lock;
+ struct rw_semaphore lock;
unsigned int nr;
struct list_head dead;
struct thread *last_match;
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index bdaa0a4edc17..5792d7a78152 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -488,7 +488,7 @@ u64 map__objdump_2mem(struct map *map, u64 ip)
static void maps__init(struct maps *maps)
{
maps->entries = RB_ROOT;
- pthread_rwlock_init(&maps->lock, NULL);
+ init_rwsem(&maps->lock);
}
void map_groups__init(struct map_groups *mg, struct machine *machine)
@@ -517,9 +517,9 @@ static void __maps__purge(struct maps *maps)
static void maps__exit(struct maps *maps)
{
- pthread_rwlock_wrlock(&maps->lock);
+ down_write(&maps->lock);
__maps__purge(maps);
- pthread_rwlock_unlock(&maps->lock);
+ up_write(&maps->lock);
}
void map_groups__exit(struct map_groups *mg)
@@ -586,7 +586,7 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name,
struct symbol *sym;
struct rb_node *nd;
- pthread_rwlock_rdlock(&maps->lock);
+ down_read(&maps->lock);
for (nd = rb_first(&maps->entries); nd; nd = rb_next(nd)) {
struct map *pos = rb_entry(nd, struct map, rb_node);
@@ -602,7 +602,7 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name,
sym = NULL;
out:
- pthread_rwlock_unlock(&maps->lock);
+ up_read(&maps->lock);
return sym;
}
@@ -638,7 +638,7 @@ static size_t maps__fprintf(struct maps *maps, FILE *fp)
size_t printed = 0;
struct rb_node *nd;
- pthread_rwlock_rdlock(&maps->lock);
+ down_read(&maps->lock);
for (nd = rb_first(&maps->entries); nd; nd = rb_next(nd)) {
struct map *pos = rb_entry(nd, struct map, rb_node);
@@ -650,7 +650,7 @@ static size_t maps__fprintf(struct maps *maps, FILE *fp)
}
}
- pthread_rwlock_unlock(&maps->lock);
+ up_read(&maps->lock);
return printed;
}
@@ -682,7 +682,7 @@ static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp
struct rb_node *next;
int err = 0;
- pthread_rwlock_wrlock(&maps->lock);
+ down_write(&maps->lock);
root = &maps->entries;
next = rb_first(root);
@@ -750,7 +750,7 @@ put_map:
err = 0;
out:
- pthread_rwlock_unlock(&maps->lock);
+ up_write(&maps->lock);
return err;
}
@@ -771,7 +771,7 @@ int map_groups__clone(struct thread *thread,
struct map *map;
struct maps *maps = &parent->maps[type];
- pthread_rwlock_rdlock(&maps->lock);
+ down_read(&maps->lock);
for (map = maps__first(maps); map; map = map__next(map)) {
struct map *new = map__clone(map);
@@ -788,7 +788,7 @@ int map_groups__clone(struct thread *thread,
err = 0;
out_unlock:
- pthread_rwlock_unlock(&maps->lock);
+ up_read(&maps->lock);
return err;
}
@@ -815,9 +815,9 @@ static void __maps__insert(struct maps *maps, struct map *map)
void maps__insert(struct maps *maps, struct map *map)
{
- pthread_rwlock_wrlock(&maps->lock);
+ down_write(&maps->lock);
__maps__insert(maps, map);
- pthread_rwlock_unlock(&maps->lock);
+ up_write(&maps->lock);
}
static void __maps__remove(struct maps *maps, struct map *map)
@@ -828,9 +828,9 @@ static void __maps__remove(struct maps *maps, struct map *map)
void maps__remove(struct maps *maps, struct map *map)
{
- pthread_rwlock_wrlock(&maps->lock);
+ down_write(&maps->lock);
__maps__remove(maps, map);
- pthread_rwlock_unlock(&maps->lock);
+ up_write(&maps->lock);
}
struct map *maps__find(struct maps *maps, u64 ip)
@@ -838,7 +838,7 @@ struct map *maps__find(struct maps *maps, u64 ip)
struct rb_node **p, *parent = NULL;
struct map *m;
- pthread_rwlock_rdlock(&maps->lock);
+ down_read(&maps->lock);
p = &maps->entries.rb_node;
while (*p != NULL) {
@@ -854,7 +854,7 @@ struct map *maps__find(struct maps *maps, u64 ip)
m = NULL;
out:
- pthread_rwlock_unlock(&maps->lock);
+ up_read(&maps->lock);
return m;
}
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 73aacf7a7dc4..d5d7442dac7a 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -9,6 +9,7 @@
#include <stdio.h>
#include <stdbool.h>
#include <linux/types.h>
+#include "rwsem.h"
enum map_type {
MAP__FUNCTION = 0,
@@ -61,7 +62,7 @@ struct kmap {
struct maps {
struct rb_root entries;
- pthread_rwlock_t lock;
+ struct rw_semaphore lock;
};
struct map_groups {
diff --git a/tools/perf/util/rwsem.c b/tools/perf/util/rwsem.c
new file mode 100644
index 000000000000..5e52e7baa7b6
--- /dev/null
+++ b/tools/perf/util/rwsem.c
@@ -0,0 +1,32 @@
+#include "util.h"
+#include "rwsem.h"
+
+int init_rwsem(struct rw_semaphore *sem)
+{
+ return pthread_rwlock_init(&sem->lock, NULL);
+}
+
+int exit_rwsem(struct rw_semaphore *sem)
+{
+ return pthread_rwlock_destroy(&sem->lock);
+}
+
+int down_read(struct rw_semaphore *sem)
+{
+ return perf_singlethreaded ? 0 : pthread_rwlock_rdlock(&sem->lock);
+}
+
+int up_read(struct rw_semaphore *sem)
+{
+ return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
+}
+
+int down_write(struct rw_semaphore *sem)
+{
+ return perf_singlethreaded ? 0 : pthread_rwlock_wrlock(&sem->lock);
+}
+
+int up_write(struct rw_semaphore *sem)
+{
+ return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
+}
diff --git a/tools/perf/util/rwsem.h b/tools/perf/util/rwsem.h
new file mode 100644
index 000000000000..94565ad4d494
--- /dev/null
+++ b/tools/perf/util/rwsem.h
@@ -0,0 +1,19 @@
+#ifndef _PERF_RWSEM_H
+#define _PERF_RWSEM_H
+
+#include <pthread.h>
+
+struct rw_semaphore {
+ pthread_rwlock_t lock;
+};
+
+int init_rwsem(struct rw_semaphore *sem);
+int exit_rwsem(struct rw_semaphore *sem);
+
+int down_read(struct rw_semaphore *sem);
+int up_read(struct rw_semaphore *sem);
+
+int down_write(struct rw_semaphore *sem);
+int up_write(struct rw_semaphore *sem);
+
+#endif /* _PERF_RWSEM_H */
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 5909ee4c7ade..066e38aa4063 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -226,7 +226,7 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type)
struct maps *maps = &mg->maps[type];
struct map *next, *curr;
- pthread_rwlock_wrlock(&maps->lock);
+ down_write(&maps->lock);
curr = maps__first(maps);
if (curr == NULL)
@@ -246,7 +246,7 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type)
curr->end = ~0ULL;
out_unlock:
- pthread_rwlock_unlock(&maps->lock);
+ up_write(&maps->lock);
}
struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name)
@@ -1671,7 +1671,7 @@ struct map *map_groups__find_by_name(struct map_groups *mg,
struct maps *maps = &mg->maps[type];
struct map *map;
- pthread_rwlock_rdlock(&maps->lock);
+ down_read(&maps->lock);
for (map = maps__first(maps); map; map = map__next(map)) {
if (map->dso && strcmp(map->dso->short_name, name) == 0)
@@ -1681,7 +1681,7 @@ struct map *map_groups__find_by_name(struct map_groups *mg,
map = NULL;
out_unlock:
- pthread_rwlock_unlock(&maps->lock);
+ up_read(&maps->lock);
return map;
}
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index aee9a42102ba..c09bdb509d82 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -264,7 +264,7 @@ static int __thread__prepare_access(struct thread *thread)
struct maps *maps = &thread->mg->maps[i];
struct map *map;
- pthread_rwlock_rdlock(&maps->lock);
+ down_read(&maps->lock);
for (map = maps__first(maps); map; map = map__next(map)) {
err = unwind__prepare_access(thread, map, &initialized);
@@ -272,7 +272,7 @@ static int __thread__prepare_access(struct thread *thread)
break;
}
- pthread_rwlock_unlock(&maps->lock);
+ up_read(&maps->lock);
}
return err;
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index e7d60d05596d..d7f2113462fb 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -28,7 +28,6 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
-#include <pthread.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 8a9a677f7576..40b425949aa3 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -27,7 +27,6 @@
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/mman.h>
-#include <pthread.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 3c9c39711343..97e0c8e26477 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -23,6 +23,19 @@
/*
* XXX We need to find a better place for these things...
*/
+
+bool perf_singlethreaded = true;
+
+void perf_set_singlethreaded(void)
+{
+ perf_singlethreaded = true;
+}
+
+void perf_set_multithreaded(void)
+{
+ perf_singlethreaded = false;
+}
+
unsigned int page_size;
int cacheline_size;
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 03946d5e4741..6c7e6cc902bb 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -62,4 +62,9 @@ int sched_getcpu(void);
int setns(int fd, int nstype);
#endif
+extern bool perf_singlethreaded;
+
+void perf_set_singlethreaded(void);
+void perf_set_multithreaded(void);
+
#endif /* GIT_COMPAT_UTIL_H */
diff --git a/tools/perf/util/vdso.c b/tools/perf/util/vdso.c
index d3c39eec89a8..f5f843d3c22f 100644
--- a/tools/perf/util/vdso.c
+++ b/tools/perf/util/vdso.c
@@ -319,7 +319,7 @@ struct dso *machine__findnew_vdso(struct machine *machine,
struct vdso_info *vdso_info;
struct dso *dso = NULL;
- pthread_rwlock_wrlock(&machine->dsos.lock);
+ down_write(&machine->dsos.lock);
if (!machine->vdso_info)
machine->vdso_info = vdso_info__new();
@@ -347,7 +347,7 @@ struct dso *machine__findnew_vdso(struct machine *machine,
out_unlock:
dso__get(dso);
- pthread_rwlock_unlock(&machine->dsos.lock);
+ up_write(&machine->dsos.lock);
return dso;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 08:39:20 +0000