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Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h419
1 files changed, 0 insertions, 419 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h
deleted file mode 100644
index 438632d962..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h
+++ /dev/null
@@ -1,419 +0,0 @@
-/* Copyright (C) 2003-2014 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/>. */
-
-#ifndef _LOWLEVELLOCK_H
-#define _LOWLEVELLOCK_H 1
-
-#ifndef __ASSEMBLER__
-#include <time.h>
-#include <sys/param.h>
-#include <bits/pthreadtypes.h>
-#include <kernel-features.h>
-#endif
-
-#define SYS_futex 240
-#define FUTEX_WAIT 0
-#define FUTEX_WAKE 1
-#define FUTEX_CMP_REQUEUE 4
-#define FUTEX_WAKE_OP 5
-#define FUTEX_LOCK_PI 6
-#define FUTEX_UNLOCK_PI 7
-#define FUTEX_TRYLOCK_PI 8
-#define FUTEX_WAIT_BITSET 9
-#define FUTEX_WAKE_BITSET 10
-#define FUTEX_PRIVATE_FLAG 128
-#define FUTEX_CLOCK_REALTIME 256
-
-#define FUTEX_BITSET_MATCH_ANY 0xffffffff
-
-#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1)
-
-/* Values for 'private' parameter of locking macros. Yes, the
- definition seems to be backwards. But it is not. The bit will be
- reversed before passing to the system call. */
-#define LLL_PRIVATE 0
-#define LLL_SHARED FUTEX_PRIVATE_FLAG
-
-
-#if !defined NOT_IN_libc || defined IS_IN_rtld
-/* In libc.so or ld.so all futexes are private. */
-# ifdef __ASSUME_PRIVATE_FUTEX
-# define __lll_private_flag(fl, private) \
- ((fl) | FUTEX_PRIVATE_FLAG)
-# else
-# define __lll_private_flag(fl, private) \
- ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex))
-# endif
-#else
-# ifdef __ASSUME_PRIVATE_FUTEX
-# define __lll_private_flag(fl, private) \
- (((fl) | FUTEX_PRIVATE_FLAG) ^ (private))
-# else
-# define __lll_private_flag(fl, private) \
- (__builtin_constant_p (private) \
- ? ((private) == 0 \
- ? ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) \
- : (fl)) \
- : ((fl) | (((private) ^ FUTEX_PRIVATE_FLAG) \
- & THREAD_GETMEM (THREAD_SELF, header.private_futex))))
-# endif
-#endif
-
-#ifndef __ASSEMBLER__
-
-/* Initializer for compatibility lock. */
-#define LLL_LOCK_INITIALIZER (0)
-#define LLL_LOCK_INITIALIZER_LOCKED (1)
-#define LLL_LOCK_INITIALIZER_WAITERS (2)
-
-extern int __lll_lock_wait_private (int val, int *__futex)
- attribute_hidden;
-extern int __lll_lock_wait (int val, int *__futex, int private)
- attribute_hidden;
-extern int __lll_timedlock_wait (int val, int *__futex,
- const struct timespec *abstime, int private)
- attribute_hidden;
-extern int __lll_robust_lock_wait (int val, int *__futex, int private)
- attribute_hidden;
-extern int __lll_robust_timedlock_wait (int val, int *__futex,
- const struct timespec *abstime,
- int private)
- attribute_hidden;
-extern int __lll_unlock_wake_private (int *__futex) attribute_hidden;
-extern int __lll_unlock_wake (int *__futex, int private) attribute_hidden;
-
-#define lll_trylock(futex) \
- ({ unsigned char __result; \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- nop\n\
- mov r15,r1\n\
- mov #-8,r15\n\
- 0: mov.l @%1,r2\n\
- cmp/eq r2,%3\n\
- bf 1f\n\
- mov.l %2,@%1\n\
- 1: mov r1,r15\n\
- mov #-1,%0\n\
- negc %0,%0"\
- : "=r" (__result) \
- : "r" (&(futex)), \
- "r" (LLL_LOCK_INITIALIZER_LOCKED), \
- "r" (LLL_LOCK_INITIALIZER) \
- : "r0", "r1", "r2", "t", "memory"); \
- __result; })
-
-#define lll_robust_trylock(futex, id) \
- ({ unsigned char __result; \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- nop\n\
- mov r15,r1\n\
- mov #-8,r15\n\
- 0: mov.l @%1,r2\n\
- cmp/eq r2,%3\n\
- bf 1f\n\
- mov.l %2,@%1\n\
- 1: mov r1,r15\n\
- mov #-1,%0\n\
- negc %0,%0"\
- : "=r" (__result) \
- : "r" (&(futex)), \
- "r" (id), \
- "r" (LLL_LOCK_INITIALIZER) \
- : "r0", "r1", "r2", "t", "memory"); \
- __result; })
-
-#define lll_cond_trylock(futex) \
- ({ unsigned char __result; \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- nop\n\
- mov r15,r1\n\
- mov #-8,r15\n\
- 0: mov.l @%1,r2\n\
- cmp/eq r2,%3\n\
- bf 1f\n\
- mov.l %2,@%1\n\
- 1: mov r1,r15\n\
- mov #-1,%0\n\
- negc %0,%0"\
- : "=r" (__result) \
- : "r" (&(futex)), \
- "r" (LLL_LOCK_INITIALIZER_WAITERS), \
- "r" (LLL_LOCK_INITIALIZER) \
- : "r0", "r1", "r2", "t", "memory"); \
- __result; })
-
-#define lll_lock(futex, private) \
- (void) ({ int __result, *__futex = &(futex); \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- nop\n\
- mov r15,r1\n\
- mov #-8,r15\n\
- 0: mov.l @%2,%0\n\
- tst %0,%0\n\
- bf 1f\n\
- mov.l %1,@%2\n\
- 1: mov r1,r15"\
- : "=&r" (__result) : "r" (1), "r" (__futex) \
- : "r0", "r1", "t", "memory"); \
- if (__result) \
- { \
- if (__builtin_constant_p (private) \
- && (private) == LLL_PRIVATE) \
- __lll_lock_wait_private (__result, __futex); \
- else \
- __lll_lock_wait (__result, __futex, (private)); \
- } \
- })
-
-#define lll_robust_lock(futex, id, private) \
- ({ int __result, *__futex = &(futex); \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- nop\n\
- mov r15,r1\n\
- mov #-8,r15\n\
- 0: mov.l @%2,%0\n\
- tst %0,%0\n\
- bf 1f\n\
- mov.l %1,@%2\n\
- 1: mov r1,r15"\
- : "=&r" (__result) : "r" (id), "r" (__futex) \
- : "r0", "r1", "t", "memory"); \
- if (__result) \
- __result = __lll_robust_lock_wait (__result, __futex, private); \
- __result; })
-
-/* Special version of lll_mutex_lock which causes the unlock function to
- always wakeup waiters. */
-#define lll_cond_lock(futex, private) \
- (void) ({ int __result, *__futex = &(futex); \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- nop\n\
- mov r15,r1\n\
- mov #-8,r15\n\
- 0: mov.l @%2,%0\n\
- tst %0,%0\n\
- bf 1f\n\
- mov.l %1,@%2\n\
- 1: mov r1,r15"\
- : "=&r" (__result) : "r" (2), "r" (__futex) \
- : "r0", "r1", "t", "memory"); \
- if (__result) \
- __lll_lock_wait (__result, __futex, private); })
-
-#define lll_robust_cond_lock(futex, id, private) \
- ({ int __result, *__futex = &(futex); \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- nop\n\
- mov r15,r1\n\
- mov #-8,r15\n\
- 0: mov.l @%2,%0\n\
- tst %0,%0\n\
- bf 1f\n\
- mov.l %1,@%2\n\
- 1: mov r1,r15"\
- : "=&r" (__result) : "r" (id | FUTEX_WAITERS), "r" (__futex) \
- : "r0", "r1", "t", "memory"); \
- if (__result) \
- __result = __lll_robust_lock_wait (__result, __futex, private); \
- __result; })
-
-#define lll_timedlock(futex, timeout, private) \
- ({ int __result, *__futex = &(futex); \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- nop\n\
- mov r15,r1\n\
- mov #-8,r15\n\
- 0: mov.l @%2,%0\n\
- tst %0,%0\n\
- bf 1f\n\
- mov.l %1,@%2\n\
- 1: mov r1,r15"\
- : "=&r" (__result) : "r" (1), "r" (__futex) \
- : "r0", "r1", "t", "memory"); \
- if (__result) \
- __result = __lll_timedlock_wait (__result, __futex, timeout, private); \
- __result; })
-
-#define lll_robust_timedlock(futex, timeout, id, private) \
- ({ int __result, *__futex = &(futex); \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- nop\n\
- mov r15,r1\n\
- mov #-8,r15\n\
- 0: mov.l @%2,%0\n\
- tst %0,%0\n\
- bf 1f\n\
- mov.l %1,@%2\n\
- 1: mov r1,r15"\
- : "=&r" (__result) : "r" (id), "r" (__futex) \
- : "r0", "r1", "t", "memory"); \
- if (__result) \
- __result = __lll_robust_timedlock_wait (__result, __futex, \
- timeout, private); \
- __result; })
-
-#define lll_unlock(futex, private) \
- (void) ({ int __result, *__futex = &(futex); \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- mov r15,r1\n\
- mov #-6,r15\n\
- 0: mov.l @%1,%0\n\
- add #-1,%0\n\
- mov.l %0,@%1\n\
- 1: mov r1,r15"\
- : "=&r" (__result) : "r" (__futex) \
- : "r0", "r1", "memory"); \
- if (__result) \
- { \
- if (__builtin_constant_p (private) \
- && (private) == LLL_PRIVATE) \
- __lll_unlock_wake_private (__futex); \
- else \
- __lll_unlock_wake (__futex, (private)); \
- } \
- })
-
-#define lll_robust_unlock(futex, private) \
- (void) ({ int __result, *__futex = &(futex); \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- mov r15,r1\n\
- mov #-6,r15\n\
- 0: mov.l @%1,%0\n\
- and %2,%0\n\
- mov.l %0,@%1\n\
- 1: mov r1,r15"\
- : "=&r" (__result) : "r" (__futex), "r" (FUTEX_WAITERS) \
- : "r0", "r1", "memory"); \
- if (__result) \
- __lll_unlock_wake (__futex, private); })
-
-#define lll_robust_dead(futex, private) \
- (void) ({ int __ignore, *__futex = &(futex); \
- __asm __volatile ("\
- .align 2\n\
- mova 1f,r0\n\
- mov r15,r1\n\
- mov #-6,r15\n\
- 0: mov.l @%1,%0\n\
- or %2,%0\n\
- mov.l %0,@%1\n\
- 1: mov r1,r15"\
- : "=&r" (__ignore) : "r" (__futex), "r" (FUTEX_OWNER_DIED) \
- : "r0", "r1", "memory"); \
- lll_futex_wake (__futex, 1, private); })
-
-# ifdef NEED_SYSCALL_INST_PAD
-# define SYSCALL_WITH_INST_PAD "\
- trapa #0x14; or r0,r0; or r0,r0; or r0,r0; or r0,r0; or r0,r0"
-# else
-# define SYSCALL_WITH_INST_PAD "\
- trapa #0x14"
-# endif
-
-#define lll_futex_wait(futex, val, private) \
- lll_futex_timed_wait (futex, val, NULL, private)
-
-
-#define lll_futex_timed_wait(futex, val, timeout, private) \
- ({ \
- int __status; \
- register unsigned long __r3 asm ("r3") = SYS_futex; \
- register unsigned long __r4 asm ("r4") = (unsigned long) (futex); \
- register unsigned long __r5 asm ("r5") \
- = __lll_private_flag (FUTEX_WAIT, private); \
- register unsigned long __r6 asm ("r6") = (unsigned long) (val); \
- register unsigned long __r7 asm ("r7") = (timeout); \
- __asm __volatile (SYSCALL_WITH_INST_PAD \
- : "=z" (__status) \
- : "r" (__r3), "r" (__r4), "r" (__r5), \
- "r" (__r6), "r" (__r7) \
- : "memory", "t"); \
- __status; \
- })
-
-
-#define lll_futex_wake(futex, nr, private) \
- do { \
- int __ignore; \
- register unsigned long __r3 asm ("r3") = SYS_futex; \
- register unsigned long __r4 asm ("r4") = (unsigned long) (futex); \
- register unsigned long __r5 asm ("r5") \
- = __lll_private_flag (FUTEX_WAKE, private); \
- register unsigned long __r6 asm ("r6") = (unsigned long) (nr); \
- register unsigned long __r7 asm ("r7") = 0; \
- __asm __volatile (SYSCALL_WITH_INST_PAD \
- : "=z" (__ignore) \
- : "r" (__r3), "r" (__r4), "r" (__r5), \
- "r" (__r6), "r" (__r7) \
- : "memory", "t"); \
- } while (0)
-
-
-#define lll_islocked(futex) \
- (futex != LLL_LOCK_INITIALIZER)
-
-/* The kernel notifies a process which uses CLONE_CHILD_CLEARTID via futex
- wakeup when the clone terminates. The memory location contains the
- thread ID while the clone is running and is reset to zero
- afterwards. */
-
-#define lll_wait_tid(tid) \
- do { \
- __typeof (tid) *__tid = &(tid); \
- while (*__tid != 0) \
- lll_futex_wait (__tid, *__tid, LLL_SHARED); \
- } while (0)
-
-extern int __lll_timedwait_tid (int *tid, const struct timespec *abstime)
- attribute_hidden;
-#define lll_timedwait_tid(tid, abstime) \
- ({ \
- int __result = 0; \
- if (tid != 0) \
- { \
- if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) \
- __result = EINVAL; \
- else \
- __result = __lll_timedwait_tid (&tid, abstime); \
- } \
- __result; })
-
-#endif /* !__ASSEMBLER__ */
-
-#endif /* lowlevellock.h */
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