diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S')
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S deleted file mode 100644 index ca0fe7966..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S +++ /dev/null @@ -1,262 +0,0 @@ -/* Copyright (C) 2003, 2004, 2006, 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 - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <lowlevellock.h> -#include <lowlevelcond.h> -#include <bits/kernel-features.h> -#include <pthread-pi-defines.h> -#include <pthread-errnos.h> -#include <tcb-offsets.h> -#include "lowlevel-atomic.h" - - .text - - /* int pthread_cond_broadcast (pthread_cond_t *cond) */ - .globl __pthread_cond_broadcast - .type __pthread_cond_broadcast, @function - .protected __pthread_cond_broadcast - .align 5 -__pthread_cond_broadcast: - mov.l r10, @-r15 - mov.l r9, @-r15 - mov.l r8, @-r15 - sts.l pr, @-r15 - mov r4, r8 - - /* Get internal lock. */ - mov #0, r3 - mov #1, r4 -#if cond_lock != 0 - CMPXCHG (r3, @(cond_lock,r8), r4, r2) -#else - CMPXCHG (r3, @r8, r4, r2) -#endif - bf 1f -2: - mov.l @(total_seq+4,r8),r0 - mov.l @(total_seq,r8),r1 - mov.l @(wakeup_seq+4,r8), r2 - cmp/hi r2, r0 - bt 3f - cmp/hi r0, r2 - bt 4f - mov.l @(wakeup_seq,r8), r2 - cmp/hi r2, r1 - bf 4f - -3: - /* Cause all currently waiting threads to recognize they are - woken up. */ - mov.l r1, @(wakeup_seq,r8) - mov.l r0, @(wakeup_seq+4,r8) - mov.l r1, @(woken_seq,r8) - mov.l r0, @(woken_seq+4,r8) - mov.l @(broadcast_seq,r8), r2 - add #1, r2 - mov.l r2, @(broadcast_seq,r8) - add r1, r1 - mov r1, r10 - mov.l r10, @(cond_futex,r8) - - /* Get the address of the mutex used. */ - mov.l @(dep_mutex,r8), r9 - - /* Unlock. */ -#if cond_lock != 0 - DEC (@(cond_lock,r8), r2) -#else - DEC (@r8, r2) -#endif - tst r2, r2 - bf 7f - -8: - /* Don't use requeue for pshared condvars. */ - mov #-1, r0 - cmp/eq r0, r9 - mov r8, r4 - bt/s 9f - add #cond_futex, r4 - - /* XXX: The kernel only supports FUTEX_CMP_REQUEUE to the same - type of futex (private resp. shared). */ - mov.l @(MUTEX_KIND,r9), r0 - tst #(PI_BIT|PS_BIT), r0 - bf 9f - - /* Wake up all threads. */ -#ifdef __ASSUME_PRIVATE_FUTEX - mov #(FUTEX_CMP_REQUEUE|FUTEX_PRIVATE_FLAG), r5 - extu.b r5, r5 -#else - stc gbr, r1 - mov.w .Lpfoff, r2 - add r2, r1 - mov.l @r1, r5 - mov #FUTEX_CMP_REQUEUE, r0 - or r0, r5 -#endif - mov #1, r6 - mov #-1, r7 - shlr r7 /* r7 = 0x7fffffff */ - mov r9, r0 -# if MUTEX_FUTEX != 0 - add #MUTEX_FUTEX, r0 -# endif - mov r10, r1 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x16 - SYSCALL_INST_PAD - - /* For any kind of error, which mainly is EAGAIN, we try again - with WAKE. The general test also covers running on old - kernels. */ - mov r0, r1 - mov #-12, r2 - shad r2, r1 - not r1, r1 - tst r1, r1 - mov r8, r4 - bt/s 9f - add #cond_futex, r4 - -10: - mov #0, r0 - lds.l @r15+, pr - mov.l @r15+, r8 - mov.l @r15+, r9 - rts - mov.l @r15+, r10 - -4: - /* Unlock. */ -#if cond_lock != 0 - DEC (@(cond_lock,r8), r2) -#else - DEC (@r8, r2) -#endif - tst r2, r2 - bf 5f -6: - mov #0, r0 - lds.l @r15+, pr - mov.l @r15+, r8 - mov.l @r15+, r9 - rts - mov.l @r15+, r10 - -1: - /* Initial locking failed. */ - mov r8, r5 -#if cond_lock != 0 - add #cond_lock, r5 -#endif - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bf/s 99f - mov #LLL_PRIVATE, r6 - mov #LLL_SHARED, r6 -99: - extu.b r6, r6 - mov.l .Lwait5, r1 - bsrf r1 - mov r2, r4 -.Lwait5b: - bra 2b - nop - -5: - /* Unlock in loop requires wakeup. */ - mov r8, r4 -#if cond_lock != 0 - add #cond_lock, r4 -#endif - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bf/s 99f - mov #LLL_PRIVATE, r5 - mov #LLL_SHARED, r5 -99: - mov.l .Lwake5, r1 - bsrf r1 - extu.b r5, r5 -.Lwake5b: - bra 6b - nop - -7: - /* Unlock in loop requires wakeup. */ - mov r8, r4 -#if cond_lock != 0 - add #cond_lock, r4 -#endif - mov #-1, r0 - cmp/eq r0, r9 - bf/s 99f - mov #LLL_PRIVATE, r5 - mov #LLL_SHARED, r5 -99: - mov.l .Lwake6, r1 - bsrf r1 - extu.b r5, r5 -.Lwake6b: - bra 8b - nop - -9: - mov #-1, r0 - cmp/eq r0, r9 - bt/s 99f - mov #FUTEX_WAKE, r5 -#ifdef __ASSUME_PRIVATE_FUTEX - mov #(FUTEX_WAKE|FUTEX_PRIVATE_FLAG), r5 - extu.b r5, r5 -#else - stc gbr, r1 - mov.w .Lpfoff, r2 - add r2, r1 - mov.l @r1, r5 - mov #FUTEX_WAKE, r0 - or r0, r5 -#endif -99: - mov #-1, r6 - shlr r6 /* r6 = 0x7fffffff */ - mov #0, r7 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - bra 10b - nop - -#ifndef __ASSUME_PRIVATE_FUTEX -.Lpfoff: - .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE -#endif - - .align 2 -.Lwait5: - .long __lll_lock_wait-.Lwait5b -.Lwake5: - .long __lll_unlock_wake-.Lwake5b -.Lwake6: - .long __lll_unlock_wake-.Lwake6b - .size __pthread_cond_broadcast, .-__pthread_cond_broadcast -weak_alias (__pthread_cond_broadcast, pthread_cond_broadcast) |