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Use atomic_exchange_release/acquire

Browse Source 
Rename atomic_exchange_rel/acq to use atomic_exchange_release/acquire
since these map to the standard C11 atomic builtins.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Wilco Dijkstra 2022-09-26 16:58:08 +01:00
parent c02e29a0ba
commit 22f4ab2d20
31 changed files with 39 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
assert/assert.c
View File

@ -74,7 +74,7 @@ __assert_fail_base (const char *fmt, const char *assertion, const char *file,
/* We have to free the old buffer since the application might
catch the SIGABRT signal. */
struct abort_msg_s *old = atomic_exchange_acq (&__abort_msg, buf);
struct abort_msg_s *old = atomic_exchange_acquire (&__abort_msg, buf);
if (old != NULL)
__munmap (old, old->size);

2
hurd/hurdlock.c
View File

@ -89,7 +89,7 @@ __lll_abstimed_lock (void *ptr,
while (1)
{
if (atomic_exchange_acq ((int *)ptr, 2) == 0)
if (atomic_exchange_acquire ((int *)ptr, 2) == 0)
return 0;
else if (! valid_nanoseconds (tsp->tv_nsec))
return EINVAL;

4
mach/lowlevellock.h
View File

@ -78,7 +78,7 @@ extern kern_return_t __gsync_wait_intr
|| atomic_compare_and_exchange_bool_acq (__iptr, 1, 0) != 0) \
while (1) \
{ \
if (atomic_exchange_acq (__iptr, 2) == 0) \
if (atomic_exchange_acquire (__iptr, 2) == 0) \
break; \
__lll_wait (__iptr, 2, __flags); \
} \
@ -102,7 +102,7 @@ extern kern_return_t __gsync_wait_intr
#define __lll_unlock(ptr, flags) \
({ \
int *__iptr = (int *)(ptr); \
if (atomic_exchange_rel (__iptr, 0) == 2) \
if (atomic_exchange_release (__iptr, 0) == 2) \
__lll_wake (__iptr, (flags)); \
(void)0; \
})

2
malloc/malloc.c
View File

@ -4718,7 +4718,7 @@ static void malloc_consolidate(mstate av)
maxfb = &fastbin (av, NFASTBINS - 1);
fb = &fastbin (av, 0);
do {
p = atomic_exchange_acq (fb, NULL);
p = atomic_exchange_acquire (fb, NULL);
if (p != 0) {
do {
{

6
manual/llio.texi
View File

@ -2538,7 +2538,7 @@ aiocb64}, since the LFS transparently replaces the old interface.
@c munmap ok
@c THREAD_COPY_STACK_GUARD ok
@c THREAD_COPY_POINTER_GUARD ok
@c atomic_exchange_acq ok
@c atomic_exchange_acquire ok
@c lll_futex_wake ok
@c deallocate_stack @asulock @ascuheap @aculock @acsmem
@c lll_lock (state_cache_lock) @asulock @aculock
@ -2570,7 +2570,7 @@ aiocb64}, since the LFS transparently replaces the old interface.
@c atomic_fetch_add_relaxed ok
@c clone ok
@c atomic_fetch_add_relaxed ok
@c atomic_exchange_acq ok
@c atomic_exchange_acquire ok
@c lll_futex_wake ok
@c deallocate_stack dup
@c sched_setaffinity ok
@ -2590,7 +2590,7 @@ aiocb64}, since the LFS transparently replaces the old interface.
@c start_thread ok
@c HP_TIMING_NOW ok
@c ctype_init @mtslocale
@c atomic_exchange_acq ok
@c atomic_exchange_acquire ok
@c lll_futex_wake ok
@c sigemptyset ok
@c sigaddset ok

2
manual/memory.texi
View File

@ -451,7 +451,7 @@ this function is in @file{stdlib.h}.
@c clear_fastchunks ok
@c unsorted_chunks dup ok
@c fastbin dup ok
@c atomic_exchange_acq ok
@c atomic_exchange_acquire ok
@c check_inuse_chunk dup ok/disabled
@c chunk_at_offset dup ok
@c chunksize dup ok

2
nptl/pthread_create.c
View File

@ -415,7 +415,7 @@ start_thread (void *arg)
unwind_buf.priv.data.cleanup = NULL;
/* Allow setxid from now onwards. */
if (__glibc_unlikely (atomic_exchange_acq (&pd->setxid_futex, 0) == -2))
if (__glibc_unlikely (atomic_exchange_acquire (&pd->setxid_futex, 0) == -2))
futex_wake (&pd->setxid_futex, 1, FUTEX_PRIVATE);
if (__glibc_likely (! not_first_call))

2
nptl/pthread_mutex_unlock.c
View File

@ -171,7 +171,7 @@ __pthread_mutex_unlock_full (pthread_mutex_t *mutex, int decr)
The unlock operation must be the last access to the mutex to not
violate the mutex destruction requirements (see __lll_unlock). */
private = PTHREAD_ROBUST_MUTEX_PSHARED (mutex);
if (__glibc_unlikely ((atomic_exchange_rel (&mutex->__data.__lock, 0)
if (__glibc_unlikely ((atomic_exchange_release (&mutex->__data.__lock, 0)
& FUTEX_WAITERS) != 0))
futex_wake ((unsigned int *) &mutex->__data.__lock, 1, private);

2
sysdeps/aarch64/nptl/tls.h
View File

@ -98,7 +98,7 @@ typedef struct
# define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/alpha/nptl/tls.h
View File

@ -95,7 +95,7 @@ typedef struct
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/arc/nptl/tls.h
View File

@ -103,7 +103,7 @@ typedef struct
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/arm/nptl/tls.h
View File

@ -89,7 +89,7 @@ typedef struct
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/csky/nptl/tls.h
View File

@ -118,7 +118,7 @@ typedef struct
# define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

4
sysdeps/hppa/nptl/pthread_spin_init.c
View File

@ -23,7 +23,7 @@ __pthread_spin_init (pthread_spinlock_t *lock, int pshared)
{
/* CONCURRENCTY NOTES:
The atomic_exchange_rel synchronizes-with the atomic_exhange_acq in
The atomic_exchange_release synchronizes-with the atomic_exhange_acq in
pthread_spin_lock.
On hppa we must not use a plain `stw` to reset the guard lock. This
@ -40,7 +40,7 @@ __pthread_spin_init (pthread_spinlock_t *lock, int pshared)
Therefore if a variable is used in an atomic macro it must always be
manipulated with atomic macros in order for memory ordering rules to
be preserved. */
atomic_exchange_rel (lock, 0);
atomic_exchange_release (lock, 0);
return 0;
}
versioned_symbol (libc, __pthread_spin_init, pthread_spin_init,

4
sysdeps/hppa/nptl/pthread_spin_unlock.c
View File

@ -23,7 +23,7 @@ __pthread_spin_unlock (pthread_spinlock_t *lock)
{
/* CONCURRENCTY NOTES:
The atomic_exchange_rel synchronizes-with the atomic_exhange_acq in
The atomic_exchange_release synchronizes-with the atomic_exhange_acq in
pthread_spin_lock.
On hppa we must not use a plain `stw` to reset the guard lock. This
@ -40,7 +40,7 @@ __pthread_spin_unlock (pthread_spinlock_t *lock)
Therefore if a variable is used in an atomic macro it must always be
manipulated with atomic macros in order for memory ordering rules to
be preserved. */
atomic_exchange_rel (lock, 0);
atomic_exchange_release (lock, 0);
return 0;
}
versioned_symbol (libc, __pthread_spin_unlock, pthread_spin_unlock,

2
sysdeps/hppa/nptl/tls.h
View File

@ -123,7 +123,7 @@ static inline void __set_cr27(struct pthread *cr27)
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/ia64/nptl/tls.h
View File

@ -147,7 +147,7 @@ register struct pthread *__thread_self __asm__("r13");
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/loongarch/nptl/tls.h
View File

@ -119,7 +119,7 @@ typedef struct
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ \
int __res = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
int __res = atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/m68k/nptl/tls.h
View File

@ -122,7 +122,7 @@ extern void * __m68k_read_tp (void);
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/microblaze/nptl/tls.h
View File

@ -100,7 +100,7 @@ typedef struct
# define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/mips/nptl/tls.h
View File

@ -150,7 +150,7 @@ typedef struct
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/nios2/nptl/tls.h
View File

@ -130,7 +130,7 @@ register struct pthread *__thread_self __asm__("r23");
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/nptl/futex-internal.h
View File

@ -319,7 +319,7 @@ __futex_clocklock64 (int *futex, clockid_t clockid,
{
if (__glibc_unlikely (atomic_compare_and_exchange_bool_acq (futex, 1, 0)))
{
while (atomic_exchange_acq (futex, 2) != 0)
while (atomic_exchange_acquire (futex, 2) != 0)
{
int err = 0;
err = __futex_abstimed_wait64 ((unsigned int *) futex, 2, clockid,

4
sysdeps/nptl/lowlevellock.h
View File

@ -119,7 +119,7 @@ libc_hidden_proto (__lll_lock_wait)
((void) \
({ \
int *__futex = (futex); \
if (__glibc_unlikely (atomic_exchange_acq (__futex, 2) != 0)) \
if (__glibc_unlikely (atomic_exchange_acquire (__futex, 2) != 0)) \
__lll_lock_wait (__futex, private); \
}))
#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private)
@ -147,7 +147,7 @@ libc_hidden_proto (__lll_lock_wake)
({ \
int *__futex = (futex); \
int __private = (private); \
int __oldval = atomic_exchange_rel (__futex, 0); \
int __oldval = atomic_exchange_release (__futex, 0); \
if (__glibc_unlikely (__oldval > 1)) \
{ \
if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \

2
sysdeps/or1k/nptl/tls.h
View File

@ -164,7 +164,7 @@ register tcbhead_t *__thread_self __asm__("r10");
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ \
int __res = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag,\
int __res = atomic_exchange_release (&THREAD_SELF->header.gscope_flag,\
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, \

2
sysdeps/posix/libc_fatal.c
View File

@ -137,7 +137,7 @@ __libc_message (const char *fmt, ...)
/* We have to free the old buffer since the application might
catch the SIGABRT signal. */
struct abort_msg_s *old = atomic_exchange_acq (&__abort_msg,
struct abort_msg_s *old = atomic_exchange_acquire (&__abort_msg,
buf);
if (old != NULL)
__munmap (old, old->size);

2
sysdeps/powerpc/nptl/tls.h
View File

@ -214,7 +214,7 @@ typedef struct
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/riscv/nptl/tls.h
View File

@ -113,7 +113,7 @@ typedef struct
# define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/s390/nptl/tls.h
View File

@ -157,7 +157,7 @@ typedef struct
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/sh/nptl/tls.h
View File

@ -129,7 +129,7 @@ typedef struct
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \

2
sysdeps/sparc/nptl/tls.h
View File

@ -130,7 +130,7 @@ register struct pthread *__thread_self __asm__("%g7");
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
= atomic_exchange_release (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \