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* sysdeps/i386/tls.h (THREAD_SET_PRIVATE_FUTEX,

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THREAD_COPY_PRIVATE_FUTEX): Define.
	* sysdeps/x86_64/tls.h (THREAD_SET_PRIVATE_FUTEX,
	THREAD_COPY_PRIVATE_FUTEX): Define.
	* allocatestack.c (allocate_stack): Use THREAD_COPY_PRIVATE_FUTEX.
	* init.c (__pthread_initialize_minimal_internal): Use
	THREAD_SET_PRIVATE_FUTEX.
This commit is contained in:
Ulrich Drepper 2007-05-25 05:24:16 +00:00
parent 0a54ab53f2
commit 86acd59634
5 changed files with 31 additions and 9 deletions
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10
nptl/ChangeLog
View File

@ -1,4 +1,12 @@
2007-05-24 Jakub Jelinek <jakub@redhat.com>
2007-04-24 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/tls.h (THREAD_SET_PRIVATE_FUTEX,
THREAD_COPY_PRIVATE_FUTEX): Define.
* sysdeps/x86_64/tls.h (THREAD_SET_PRIVATE_FUTEX,
THREAD_COPY_PRIVATE_FUTEX): Define.
* allocatestack.c (allocate_stack): Use THREAD_COPY_PRIVATE_FUTEX.
* init.c (__pthread_initialize_minimal_internal): Use
THREAD_SET_PRIVATE_FUTEX.
* sysdeps/powerpc/tls.h (tcbhead_t): Add gscope_flag.
(THREAD_GSCOPE_FLAG_UNUSED, THREAD_GSCOPE_FLAG_USED,

10
nptl/allocatestack.c
View File

@ -376,10 +376,9 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
__pthread_multiple_threads = *__libc_multiple_threads_ptr = 1;
#endif
#ifndef __ASSUME_PRIVATE_FUTEX
#ifdef THREAD_COPY_PRIVATE_FUTEX
/* The thread must know when private futexes are supported. */
pd->header.private_futex = THREAD_GETMEM (THREAD_SELF,
header.private_futex);
THREAD_COPY_PRIVATE_FUTEX (pd);
#endif
#ifdef NEED_DL_SYSINFO
@ -516,10 +515,9 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
__pthread_multiple_threads = *__libc_multiple_threads_ptr = 1;
#endif
#ifndef __ASSUME_PRIVATE_FUTEX
#ifdef THREAD_COPY_PRIVATE_FUTEX
/* The thread must know when private futexes are supported. */
pd->header.private_futex = THREAD_GETMEM (THREAD_SELF,
header.private_futex);
THREAD_COPY_PRIVATE_FUTEX (pd);
#endif
#ifdef NEED_DL_SYSINFO

4
nptl/init.c
View File

@ -276,7 +276,7 @@ __pthread_initialize_minimal_internal (void)
#endif
set_robust_list_not_avail ();
#ifndef __ASSUME_PRIVATE_FUTEX
#ifdef THREAD_SET_PRIVATE_FUTEX
/* Private futexes are always used (at least internally) so that
doing the test once this early is beneficial. */
{
@ -284,7 +284,7 @@ __pthread_initialize_minimal_internal (void)
res = INTERNAL_SYSCALL (futex, err, 3, &word,
FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1);
if (!INTERNAL_SYSCALL_ERROR_P (res, err))
THREAD_SETMEM (pd, header.private_futex, FUTEX_PRIVATE_FLAG);
THREAD_SET_PRIVATE_FUTEX (pd, FUTEX_PRIVATE_FLAG);
}
#endif

9
nptl/sysdeps/i386/tls.h
View File

@ -459,6 +459,15 @@ union user_desc_init
GL(dl_wait_lookup_done) ()
#ifndef __ASSUME_PRIVATE_FUTEX
# define THREAD_SET_PRIVATE_FUTEX(value) \
THREAD_SETMEM (THREAD_SELF, header.private_futex, value)
# define THREAD_COPY_PRIVATE_FUTEX(descr) \
((descr)->header.private_futex \
= THREAD_GETMEM (THREAD_SELF, header.private_futex))
#endif
#endif /* __ASSEMBLER__ */
#endif /* tls.h */

7
nptl/sysdeps/x86_64/tls.h
View File

@ -364,6 +364,13 @@ typedef struct
#define THREAD_GSCOPE_WAIT() \
GL(dl_wait_lookup_done) ()
#ifndef __ASSUME_PRIVATE_FUTEX
# define THREAD_SET_PRIVATE_FUTEX(value) \
THREAD_SETMEM (THREAD_SELF, header.private_futex, value)
# define THREAD_COPY_PRIVATE_FUTEX(descr) \
((descr)->header.private_futex \
= THREAD_GETMEM (THREAD_SELF, header.private_futex))
#endif
#endif /* __ASSEMBLER__ */