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author | Ulrich Drepper <drepper@redhat.com> | 2007-06-17 16:42:55 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2007-06-17 16:42:55 +0000 |
commit | 339dbf0e392567a5f14acc81cf94f997b8262b98 (patch) | |
tree | 1edba81b692119c53a53c5963f40eb0781681ecc /nptl/sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S | |
parent | e0d4a4e53c831995fbb5ab4a17ea07ddc9b5ab52 (diff) | |
download | glibc-339dbf0e392567a5f14acc81cf94f997b8262b98.tar.gz glibc-339dbf0e392567a5f14acc81cf94f997b8262b98.tar.xz glibc-339dbf0e392567a5f14acc81cf94f997b8262b98.zip |
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_rdlock.S:
(__pthread_rwlock_rdlock): Don't use non SH-3/4 instruction. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_wrlock.S: (__pthread_rwlock_wrlock): Likewise. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S: (pthread_rwlock_timedrdlock): Likewise. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedwrlock.S: (pthread_rwlock_timedwrlock): Likewise. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S: (__pthread_rwlock_unlock): Likewise. 2007-06-10 Kaz Kojima <kkojima@rr.iij4u.or.jp> * sysdeps/sh/tcb-offsets.sym: Add PRIVATE_FUTEX. * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Include endian.h. Split __flags into __flags, __shared, __pad1 and __pad2. * sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S: Use private futexes if they are available. * sysdeps/unix/sysv/linux/sh/lowlevellock.S: Adjust so that change in libc-lowlevellock.S allow using private futexes. * sysdeps/unix/sysv/linux/sh/lowlevellock.h: Define FUTEX_PRIVATE_FLAG. Add additional parameter to lll_futex_wait, lll_futex_timed_wait and lll_futex_wake. Change lll_futex_wait to call lll_futex_timed_wait. Add lll_private_futex_wait, lll_private_futex_timed_wait and lll_private_futex_wake. (lll_robust_mutex_unlock): Fix typo. * sysdeps/unix/sysv/linux/sh/pthread_barrier_wait.S: Use private field in futex command setup. * sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S: Use COND_NWAITERS_SHIFT instead of COND_CLOCK_BITS. * sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/sh/pthread_once.S: Use private futexes if they are available. Remove clear_once_control. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_rdlock.S: Use private futexes if they are available. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S: Likewise. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedwrlock.S: Likewise. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S: Likewise. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_wrlock.S: Likewise. * sysdeps/unix/sysv/linux/sh/sem_post.S: Add private futex support. Wake only when there are waiters. * sysdeps/unix/sysv/linux/sh/sem_wait.S: Add private futex support. Indicate that there are waiters. Remove unnecessary extra cancellation test. * sysdeps/unix/sysv/linux/sh/sem_timedwait.S: Likewise. Removed left-over duplication of __sem_wait_cleanup.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S')
-rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S index 94a24b46ee..be85ab7414 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S +++ b/nptl/sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -16,4 +16,32 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ +#include <kernel-features.h> + +/* All locks in libc are private. Use the kernel feature if possible. */ +#define FUTEX_PRIVATE_FLAG 128 +#ifdef __ASSUME_PRIVATE_FUTEX +# define FUTEX_WAIT (0 | FUTEX_PRIVATE_FLAG) +# define FUTEX_WAKE (1 | FUTEX_PRIVATE_FLAG) +#else +# define LOAD_FUTEX_WAIT(reg,tmp) \ + stc gbr, tmp ; \ + mov.w 99f, reg ; \ + add reg, tmp ; \ + bra 98f ; \ + mov.l @tmp, reg ; \ +99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \ +98: + +# define LOAD_FUTEX_WAKE(reg,tmp) \ + stc gbr, tmp ; \ + mov.w 99f, reg ; \ + add reg, tmp ; \ + mov.l @tmp, reg ; \ + bra 98f ; \ + mov #FUTEX_WAKE, tmp ; \ +99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \ +98: or tmp, reg +#endif + #include "lowlevellock.S" |