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authorJoseph Myers <joseph@codesourcery.com>2015-09-11 20:00:19 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-09-11 20:00:19 +0000
commitde071d199a8578055edf2722114788ae749823aa (patch)
treee873095059e9624873d9629a68885afebaf6fbee /sysdeps/mips/bits
parent20f366af163db7b9243a6bfd5d4d42ad6b3214c0 (diff)
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Move bits/atomic.h to atomic-machine.h (bug 14912).
It was noted in <https://sourceware.org/ml/libc-alpha/2012-09/msg00305.html> that the bits/*.h naming scheme should only be used for installed headers. This patch renames bits/atomic.h to atomic-machine.h to follow that convention. This is the only change in this series that needs to change the filename rather than simply removing a directory level (because both atomic.h and bits/atomic.h exist at present). Tested for x86_64 (testsuite, and that installed stripped shared libraries are unchanged by the patch). [BZ #14912] * sysdeps/aarch64/bits/atomic.h: Move to ... * sysdeps/aarch64/atomic-machine.h: ...here. (_AARCH64_BITS_ATOMIC_H): Rename macro to _AARCH64_ATOMIC_MACHINE_H. * sysdeps/alpha/bits/atomic.h: Move to ... * sysdeps/alpha/atomic-machine.h: ...here. * sysdeps/arm/bits/atomic.h: Move to ... * sysdeps/arm/atomic-machine.h: ...here. Update comments. * bits/atomic.h: Move to ... * sysdeps/generic/atomic-machine.h: ...here. (_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H. * sysdeps/i386/bits/atomic.h: Move to ... * sysdeps/i386/atomic-machine.h: ...here. * sysdeps/ia64/bits/atomic.h: Move to ... * sysdeps/ia64/atomic-machine.h: ...here. * sysdeps/m68k/coldfire/bits/atomic.h: Move to ... * sysdeps/m68k/coldfire/atomic-machine.h: ...here. (_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H. * sysdeps/m68k/m680x0/m68020/bits/atomic.h: Move to ... * sysdeps/m68k/m680x0/m68020/atomic-machine.h: ...here. * sysdeps/microblaze/bits/atomic.h: Move to ... * sysdeps/microblaze/atomic-machine.h: ...here. * sysdeps/mips/bits/atomic.h: Move to ... * sysdeps/mips/atomic-machine.h: ...here. (_MIPS_BITS_ATOMIC_H): Rename macro to _MIPS_ATOMIC_MACHINE_H. * sysdeps/powerpc/bits/atomic.h: Move to ... * sysdeps/powerpc/atomic-machine.h: ...here. Update comments. * sysdeps/powerpc/powerpc32/bits/atomic.h: Move to ... * sysdeps/powerpc/powerpc32/atomic-machine.h: ...here. Update comments. Include <atomic-machine.h> instead of <bits/atomic.h>. * sysdeps/powerpc/powerpc64/bits/atomic.h: Move to ... * sysdeps/powerpc/powerpc64/atomic-machine.h: ...here. Include <atomic-machine.h> instead of <bits/atomic.h>. * sysdeps/s390/bits/atomic.h: Move to ... * sysdeps/s390/atomic-machine.h: ...here. * sysdeps/sparc/sparc32/bits/atomic.h: Move to ... * sysdeps/sparc/sparc32/atomic-machine.h: ...here. (_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H. * sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Move to ... * sysdeps/sparc/sparc32/sparcv9/atomic-machine.h: ...here. * sysdeps/sparc/sparc64/bits/atomic.h: Move to ... * sysdeps/sparc/sparc64/atomic-machine.h: ...here. * sysdeps/tile/bits/atomic.h: Move to ... * sysdeps/tile/atomic-machine.h: ...here. * sysdeps/tile/tilegx/bits/atomic.h: Move to ... * sysdeps/tile/tilegx/atomic-machine.h: ...here. Include <sysdeps/tile/atomic-machine.h> instead of <sysdeps/tile/bits/atomic.h>. (_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H. * sysdeps/tile/tilepro/bits/atomic.h: Move to ... * sysdeps/tile/tilepro/atomic-machine.h: ...here. Include <sysdeps/tile/atomic-machine.h> instead of <sysdeps/tile/bits/atomic.h>. (_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H. * sysdeps/unix/sysv/linux/arm/bits/atomic.h: Move to ... * sysdeps/unix/sysv/linux/arm/atomic-machine.h: ...here. Include <sysdeps/arm/atomic-machine.h> instead of <sysdeps/arm/bits/atomic.h>. * sysdeps/unix/sysv/linux/hppa/bits/atomic.h: Move to ... * sysdeps/unix/sysv/linux/hppa/atomic-machine.h: ...here. (_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H. * sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h: Move to ... * sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h: ...here. (_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H. * sysdeps/unix/sysv/linux/nios2/bits/atomic.h: Move to ... * sysdeps/unix/sysv/linux/nios2/atomic-machine.h: ...here. (_NIOS2_BITS_ATOMIC_H): Rename macro to _NIOS2_ATOMIC_MACHINE_H. * sysdeps/unix/sysv/linux/sh/bits/atomic.h: Move to ... * sysdeps/unix/sysv/linux/sh/atomic-machine.h: ...here. * sysdeps/x86_64/bits/atomic.h: Move to ... * sysdeps/x86_64/atomic-machine.h: ...here. * include/atomic.h: Include <atomic-machine.h> instead of <bits/atomic.h>.
Diffstat (limited to 'sysdeps/mips/bits')
-rw-r--r--sysdeps/mips/bits/atomic.h503
1 files changed, 0 insertions, 503 deletions
diff --git a/sysdeps/mips/bits/atomic.h b/sysdeps/mips/bits/atomic.h
deleted file mode 100644
index 375448957c..0000000000
--- a/sysdeps/mips/bits/atomic.h
+++ /dev/null
@@ -1,503 +0,0 @@
-/* Low-level functions for atomic operations. Mips version.
- Copyright (C) 2005-2015 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 _MIPS_BITS_ATOMIC_H
-#define _MIPS_BITS_ATOMIC_H 1
-
-#include <stdint.h>
-#include <inttypes.h>
-#include <sgidefs.h>
-
-typedef int32_t atomic32_t;
-typedef uint32_t uatomic32_t;
-typedef int_fast32_t atomic_fast32_t;
-typedef uint_fast32_t uatomic_fast32_t;
-
-typedef int64_t atomic64_t;
-typedef uint64_t uatomic64_t;
-typedef int_fast64_t atomic_fast64_t;
-typedef uint_fast64_t uatomic_fast64_t;
-
-typedef intptr_t atomicptr_t;
-typedef uintptr_t uatomicptr_t;
-typedef intmax_t atomic_max_t;
-typedef uintmax_t uatomic_max_t;
-
-#if _MIPS_SIM == _ABIO32 && __mips < 2
-#define MIPS_PUSH_MIPS2 ".set mips2\n\t"
-#else
-#define MIPS_PUSH_MIPS2
-#endif
-
-#if _MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIN32
-#define __HAVE_64B_ATOMICS 0
-#else
-#define __HAVE_64B_ATOMICS 1
-#endif
-
-/* See the comments in <sys/asm.h> about the use of the sync instruction. */
-#ifndef MIPS_SYNC
-# define MIPS_SYNC sync
-#endif
-
-/* Certain revisions of the R10000 Processor need an LL/SC Workaround
- enabled. Revisions before 3.0 misbehave on atomic operations, and
- Revs 2.6 and lower deadlock after several seconds due to other errata.
-
- To quote the R10K Errata:
- Workaround: The basic idea is to inhibit the four instructions
- from simultaneously becoming active in R10000. Padding all
- ll/sc sequences with nops or changing the looping branch in the
- routines to a branch likely (which is always predicted taken
- by R10000) will work. The nops should go after the loop, and the
- number of them should be 28. This number could be decremented for
- each additional instruction in the ll/sc loop such as the lock
- modifier(s) between the ll and sc, the looping branch and its
- delay slot. For typical short routines with one ll/sc loop, any
- instructions after the loop could also count as a decrement. The
- nop workaround pollutes the cache more but would be a few cycles
- faster if all the code is in the cache and the looping branch
- is predicted not taken. */
-
-
-#ifdef _MIPS_ARCH_R10000
-#define R10K_BEQZ_INSN "beqzl"
-#else
-#define R10K_BEQZ_INSN "beqz"
-#endif
-
-#define MIPS_SYNC_STR_2(X) #X
-#define MIPS_SYNC_STR_1(X) MIPS_SYNC_STR_2(X)
-#define MIPS_SYNC_STR MIPS_SYNC_STR_1(MIPS_SYNC)
-
-#if __GNUC_PREREQ (4, 8) || (defined __mips16 && __GNUC_PREREQ (4, 7))
-/* The __atomic_* builtins are available in GCC 4.7 and later, but MIPS
- support for their efficient implementation was added only in GCC 4.8.
- We still want to use them even with GCC 4.7 for MIPS16 code where we
- have no assembly alternative available and want to avoid the __sync_*
- builtins if at all possible. */
-
-#define USE_ATOMIC_COMPILER_BUILTINS 1
-
-/* Compare and exchange.
- For all "bool" routines, we return FALSE if exchange succesful. */
-
-# define __arch_compare_and_exchange_bool_8_int(mem, newval, oldval, model) \
- (abort (), 0)
-
-# define __arch_compare_and_exchange_bool_16_int(mem, newval, oldval, model) \
- (abort (), 0)
-
-# define __arch_compare_and_exchange_bool_32_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- })
-
-# define __arch_compare_and_exchange_val_8_int(mem, newval, oldval, model) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_compare_and_exchange_val_16_int(mem, newval, oldval, model) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_compare_and_exchange_val_32_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- __oldval; \
- })
-
-# if _MIPS_SIM == _ABIO32
- /* We can't do an atomic 64-bit operation in O32. */
-# define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \
- (abort (), 0)
-# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
- (abort (), (typeof(*mem)) 0)
-# else
-# define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \
- __arch_compare_and_exchange_bool_32_int (mem, newval, oldval, model)
-# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
- __arch_compare_and_exchange_val_32_int (mem, newval, oldval, model)
-# endif
-
-/* Compare and exchange with "acquire" semantics, ie barrier after. */
-
-# define atomic_compare_and_exchange_bool_acq(mem, new, old) \
- __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \
- mem, new, old, __ATOMIC_ACQUIRE)
-
-# define atomic_compare_and_exchange_val_acq(mem, new, old) \
- __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
- mem, new, old, __ATOMIC_ACQUIRE)
-
-/* Compare and exchange with "release" semantics, ie barrier before. */
-
-# define atomic_compare_and_exchange_bool_rel(mem, new, old) \
- __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \
- mem, new, old, __ATOMIC_RELEASE)
-
-# define atomic_compare_and_exchange_val_rel(mem, new, old) \
- __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
- mem, new, old, __ATOMIC_RELEASE)
-
-
-/* Atomic exchange (without compare). */
-
-# define __arch_exchange_8_int(mem, newval, model) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_exchange_16_int(mem, newval, model) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_exchange_32_int(mem, newval, model) \
- __atomic_exchange_n (mem, newval, model)
-
-# if _MIPS_SIM == _ABIO32
-/* We can't do an atomic 64-bit operation in O32. */
-# define __arch_exchange_64_int(mem, newval, model) \
- (abort (), (typeof(*mem)) 0)
-# else
-# define __arch_exchange_64_int(mem, newval, model) \
- __atomic_exchange_n (mem, newval, model)
-# endif
-
-# define atomic_exchange_acq(mem, value) \
- __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_ACQUIRE)
-
-# define atomic_exchange_rel(mem, value) \
- __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_RELEASE)
-
-
-/* Atomically add value and return the previous (unincremented) value. */
-
-# define __arch_exchange_and_add_8_int(mem, value, model) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_exchange_and_add_16_int(mem, value, model) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_exchange_and_add_32_int(mem, value, model) \
- __atomic_fetch_add (mem, value, model)
-
-# if _MIPS_SIM == _ABIO32
-/* We can't do an atomic 64-bit operation in O32. */
-# define __arch_exchange_and_add_64_int(mem, value, model) \
- (abort (), (typeof(*mem)) 0)
-# else
-# define __arch_exchange_and_add_64_int(mem, value, model) \
- __atomic_fetch_add (mem, value, model)
-# endif
-
-# define atomic_exchange_and_add_acq(mem, value) \
- __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \
- __ATOMIC_ACQUIRE)
-
-# define atomic_exchange_and_add_rel(mem, value) \
- __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \
- __ATOMIC_RELEASE)
-
-#elif defined __mips16 /* !__GNUC_PREREQ (4, 7) */
-/* This implementation using __sync* builtins will be removed once glibc
- requires GCC 4.7 or later to build. */
-
-# define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
- __sync_val_compare_and_swap ((mem), (oldval), (newval))
-# define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
- (!__sync_bool_compare_and_swap ((mem), (oldval), (newval)))
-
-# define atomic_exchange_acq(mem, newval) \
- __sync_lock_test_and_set ((mem), (newval))
-
-# define atomic_exchange_and_add(mem, val) \
- __sync_fetch_and_add ((mem), (val))
-
-# define atomic_bit_test_set(mem, bit) \
- ({ __typeof (bit) __bit = (bit); \
- (__sync_fetch_and_or ((mem), 1 << (__bit)) & (1 << (__bit))); })
-
-# define atomic_and(mem, mask) (void) __sync_fetch_and_and ((mem), (mask))
-# define atomic_and_val(mem, mask) __sync_fetch_and_and ((mem), (mask))
-
-# define atomic_or(mem, mask) (void) __sync_fetch_and_or ((mem), (mask))
-# define atomic_or_val(mem, mask) __sync_fetch_and_or ((mem), (mask))
-
-#else /* !__mips16 && !__GNUC_PREREQ (4, 8) */
-/* This implementation using inline assembly will be removed once glibc
- requires GCC 4.8 or later to build. */
-
-#define USE_ATOMIC_COMPILER_BUILTINS 0
-
-/* Compare and exchange. For all of the "xxx" routines, we expect a
- "__prev" and a "__cmp" variable to be provided by the enclosing scope,
- in which values are returned. */
-
-# define __arch_compare_and_exchange_xxx_8_int(mem, newval, oldval, rel, acq) \
- (abort (), __prev = 0, __cmp = 0, (void) __cmp)
-
-# define __arch_compare_and_exchange_xxx_16_int(mem, newval, oldval, rel, acq) \
- (abort (), __prev = 0, __cmp = 0, (void) __cmp)
-
-# define __arch_compare_and_exchange_xxx_32_int(mem, newval, oldval, rel, acq) \
- __asm__ __volatile__ ( \
- ".set push\n\t" \
- MIPS_PUSH_MIPS2 \
- rel "\n" \
- "1:\t" \
- "ll %0,%5\n\t" \
- "move %1,$0\n\t" \
- "bne %0,%3,2f\n\t" \
- "move %1,%4\n\t" \
- "sc %1,%2\n\t" \
- R10K_BEQZ_INSN" %1,1b\n" \
- acq "\n\t" \
- ".set pop\n" \
- "2:\n\t" \
- : "=&r" (__prev), "=&r" (__cmp), "=m" (*mem) \
- : "r" (oldval), "r" (newval), "m" (*mem) \
- : "memory")
-
-# if _MIPS_SIM == _ABIO32
-/* We can't do an atomic 64-bit operation in O32. */
-# define __arch_compare_and_exchange_xxx_64_int(mem, newval, oldval, rel, acq) \
- (abort (), __prev = 0, __cmp = 0, (void) __cmp)
-# else
-# define __arch_compare_and_exchange_xxx_64_int(mem, newval, oldval, rel, acq) \
- __asm__ __volatile__ ("\n" \
- ".set push\n\t" \
- MIPS_PUSH_MIPS2 \
- rel "\n" \
- "1:\t" \
- "lld %0,%5\n\t" \
- "move %1,$0\n\t" \
- "bne %0,%3,2f\n\t" \
- "move %1,%4\n\t" \
- "scd %1,%2\n\t" \
- R10K_BEQZ_INSN" %1,1b\n" \
- acq "\n\t" \
- ".set pop\n" \
- "2:\n\t" \
- : "=&r" (__prev), "=&r" (__cmp), "=m" (*mem) \
- : "r" (oldval), "r" (newval), "m" (*mem) \
- : "memory")
-# endif
-
-/* For all "bool" routines, we return FALSE if exchange succesful. */
-
-# define __arch_compare_and_exchange_bool_8_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev __attribute__ ((unused)); int __cmp; \
- __arch_compare_and_exchange_xxx_8_int(mem, new, old, rel, acq); \
- !__cmp; })
-
-# define __arch_compare_and_exchange_bool_16_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev __attribute__ ((unused)); int __cmp; \
- __arch_compare_and_exchange_xxx_16_int(mem, new, old, rel, acq); \
- !__cmp; })
-
-# define __arch_compare_and_exchange_bool_32_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev __attribute__ ((unused)); int __cmp; \
- __arch_compare_and_exchange_xxx_32_int(mem, new, old, rel, acq); \
- !__cmp; })
-
-# define __arch_compare_and_exchange_bool_64_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev __attribute__ ((unused)); int __cmp; \
- __arch_compare_and_exchange_xxx_64_int(mem, new, old, rel, acq); \
- !__cmp; })
-
-/* For all "val" routines, return the old value whether exchange
- successful or not. */
-
-# define __arch_compare_and_exchange_val_8_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev; int __cmp; \
- __arch_compare_and_exchange_xxx_8_int(mem, new, old, rel, acq); \
- (typeof (*mem))__prev; })
-
-# define __arch_compare_and_exchange_val_16_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev; int __cmp; \
- __arch_compare_and_exchange_xxx_16_int(mem, new, old, rel, acq); \
- (typeof (*mem))__prev; })
-
-# define __arch_compare_and_exchange_val_32_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev; int __cmp; \
- __arch_compare_and_exchange_xxx_32_int(mem, new, old, rel, acq); \
- (typeof (*mem))__prev; })
-
-# define __arch_compare_and_exchange_val_64_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev; int __cmp; \
- __arch_compare_and_exchange_xxx_64_int(mem, new, old, rel, acq); \
- (typeof (*mem))__prev; })
-
-/* Compare and exchange with "acquire" semantics, ie barrier after. */
-
-# define atomic_compare_and_exchange_bool_acq(mem, new, old) \
- __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \
- mem, new, old, "", MIPS_SYNC_STR)
-
-# define atomic_compare_and_exchange_val_acq(mem, new, old) \
- __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
- mem, new, old, "", MIPS_SYNC_STR)
-
-/* Compare and exchange with "release" semantics, ie barrier before. */
-
-# define atomic_compare_and_exchange_bool_rel(mem, new, old) \
- __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \
- mem, new, old, MIPS_SYNC_STR, "")
-
-# define atomic_compare_and_exchange_val_rel(mem, new, old) \
- __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
- mem, new, old, MIPS_SYNC_STR, "")
-
-
-
-/* Atomic exchange (without compare). */
-
-# define __arch_exchange_xxx_8_int(mem, newval, rel, acq) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_exchange_xxx_16_int(mem, newval, rel, acq) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_exchange_xxx_32_int(mem, newval, rel, acq) \
-({ typeof (*mem) __prev; int __cmp; \
- __asm__ __volatile__ ("\n" \
- ".set push\n\t" \
- MIPS_PUSH_MIPS2 \
- rel "\n" \
- "1:\t" \
- "ll %0,%4\n\t" \
- "move %1,%3\n\t" \
- "sc %1,%2\n\t" \
- R10K_BEQZ_INSN" %1,1b\n" \
- acq "\n\t" \
- ".set pop\n" \
- "2:\n\t" \
- : "=&r" (__prev), "=&r" (__cmp), "=m" (*mem) \
- : "r" (newval), "m" (*mem) \
- : "memory"); \
- __prev; })
-
-# if _MIPS_SIM == _ABIO32
-/* We can't do an atomic 64-bit operation in O32. */
-# define __arch_exchange_xxx_64_int(mem, newval, rel, acq) \
- (abort (), (typeof(*mem)) 0)
-# else
-# define __arch_exchange_xxx_64_int(mem, newval, rel, acq) \
-({ typeof (*mem) __prev; int __cmp; \
- __asm__ __volatile__ ("\n" \
- ".set push\n\t" \
- MIPS_PUSH_MIPS2 \
- rel "\n" \
- "1:\n" \
- "lld %0,%4\n\t" \
- "move %1,%3\n\t" \
- "scd %1,%2\n\t" \
- R10K_BEQZ_INSN" %1,1b\n" \
- acq "\n\t" \
- ".set pop\n" \
- "2:\n\t" \
- : "=&r" (__prev), "=&r" (__cmp), "=m" (*mem) \
- : "r" (newval), "m" (*mem) \
- : "memory"); \
- __prev; })
-# endif
-
-# define atomic_exchange_acq(mem, value) \
- __atomic_val_bysize (__arch_exchange_xxx, int, mem, value, "", MIPS_SYNC_STR)
-
-# define atomic_exchange_rel(mem, value) \
- __atomic_val_bysize (__arch_exchange_xxx, int, mem, value, MIPS_SYNC_STR, "")
-
-
-/* Atomically add value and return the previous (unincremented) value. */
-
-# define __arch_exchange_and_add_8_int(mem, newval, rel, acq) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_exchange_and_add_16_int(mem, newval, rel, acq) \
- (abort (), (typeof(*mem)) 0)
-
-# define __arch_exchange_and_add_32_int(mem, value, rel, acq) \
-({ typeof (*mem) __prev; int __cmp; \
- __asm__ __volatile__ ("\n" \
- ".set push\n\t" \
- MIPS_PUSH_MIPS2 \
- rel "\n" \
- "1:\t" \
- "ll %0,%4\n\t" \
- "addu %1,%0,%3\n\t" \
- "sc %1,%2\n\t" \
- R10K_BEQZ_INSN" %1,1b\n" \
- acq "\n\t" \
- ".set pop\n" \
- "2:\n\t" \
- : "=&r" (__prev), "=&r" (__cmp), "=m" (*mem) \
- : "r" (value), "m" (*mem) \
- : "memory"); \
- __prev; })
-
-# if _MIPS_SIM == _ABIO32
-/* We can't do an atomic 64-bit operation in O32. */
-# define __arch_exchange_and_add_64_int(mem, value, rel, acq) \
- (abort (), (typeof(*mem)) 0)
-# else
-# define __arch_exchange_and_add_64_int(mem, value, rel, acq) \
-({ typeof (*mem) __prev; int __cmp; \
- __asm__ __volatile__ ( \
- ".set push\n\t" \
- MIPS_PUSH_MIPS2 \
- rel "\n" \
- "1:\t" \
- "lld %0,%4\n\t" \
- "daddu %1,%0,%3\n\t" \
- "scd %1,%2\n\t" \
- R10K_BEQZ_INSN" %1,1b\n" \
- acq "\n\t" \
- ".set pop\n" \
- "2:\n\t" \
- : "=&r" (__prev), "=&r" (__cmp), "=m" (*mem) \
- : "r" (value), "m" (*mem) \
- : "memory"); \
- __prev; })
-# endif
-
-# define atomic_exchange_and_add_acq(mem, value) \
- __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \
- "", MIPS_SYNC_STR)
-
-# define atomic_exchange_and_add_rel(mem, value) \
- __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \
- MIPS_SYNC_STR, "")
-
-#endif /* !__mips16 && !__GNUC_PREREQ (4, 8) */
-
-/* TODO: More atomic operations could be implemented efficiently; only the
- basic requirements are done. */
-
-#ifdef __mips16
-# define atomic_full_barrier() __sync_synchronize ()
-
-#else /* !__mips16 */
-# define atomic_full_barrier() \
- __asm__ __volatile__ (".set push\n\t" \
- MIPS_PUSH_MIPS2 \
- MIPS_SYNC_STR "\n\t" \
- ".set pop" : : : "memory")
-#endif /* !__mips16 */
-
-#endif /* bits/atomic.h */