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949ec76407
* posix/sched.h: Change prototypes of sched_getaffinity and sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO. * sysdeps/generic/sched_getaffinity.c: Adjust definition. * sysdeps/generic/sched_setaffinity.c: Likewise. * sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS, __CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET, __CPU_CLR, and __CPU_ISSET. * sysdeps/unix/sysv/linux/bits/sched.h: Likewise. * sysdeps/unix/sysv/linux/sched_getaffinity.c: New file. * sysdeps/unix/sysv/linux/sched_setaffinity.c: New file. * include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange. (atomic_exchange_rel): New #define. * sysdeps/ia64/bits/atomic.h: Likewise. * sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange. * sysdeps/m68k/m68020/bits/atomic.h: Likewise. * sysdeps/powerpc/bits/atomic.h: Likewise. * sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise. * sysdeps/sparc/sparc64/bits/atomic.h: Likewise. * sysdeps/x86_64/bits/atomic.h: Likewise. * csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
125 lines
4.4 KiB
C
125 lines
4.4 KiB
C
/* Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <stdint.h>
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#include <ia64intrin.h>
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typedef int8_t atomic8_t;
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typedef uint8_t uatomic8_t;
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typedef int_fast8_t atomic_fast8_t;
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typedef uint_fast8_t uatomic_fast8_t;
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typedef int16_t atomic16_t;
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typedef uint16_t uatomic16_t;
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typedef int_fast16_t atomic_fast16_t;
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typedef uint_fast16_t uatomic_fast16_t;
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typedef int32_t atomic32_t;
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typedef uint32_t uatomic32_t;
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typedef int_fast32_t atomic_fast32_t;
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typedef uint_fast32_t uatomic_fast32_t;
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typedef int64_t atomic64_t;
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typedef uint64_t uatomic64_t;
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typedef int_fast64_t atomic_fast64_t;
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typedef uint_fast64_t uatomic_fast64_t;
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typedef intptr_t atomicptr_t;
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typedef uintptr_t uatomicptr_t;
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typedef intmax_t atomic_max_t;
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typedef uintmax_t uatomic_max_t;
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#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \
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(abort (), 0)
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#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \
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(abort (), 0)
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#define __arch_compare_and_exchange_bool_32_acq(mem, newval, oldval) \
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(!__sync_bool_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \
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(int) (long) (newval)))
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#define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
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(!__sync_bool_compare_and_swap_di ((long *) (mem), (long) (oldval), \
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(long) (newval)))
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#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
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(abort (), (__typeof (*mem)) 0)
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#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
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(abort (), (__typeof (*mem)) 0)
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#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
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__sync_val_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \
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(int) (long) (newval))
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#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
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__sync_val_compare_and_swap_di ((long *) (mem), (long) (oldval), \
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(long) (newval))
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/* Atomically store newval and return the old value. */
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#define atomic_exchange_acq(mem, value) \
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__sync_lock_test_and_set (mem, value)
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#define atomic_exchange_rel(mem, value) \
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(__sync_synchronize (), __sync_lock_test_and_set (mem, value))
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#define atomic_exchange_and_add(mem, value) \
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({ __typeof (*mem) __result; \
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if (sizeof (*mem) == 4) \
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__result = __sync_fetch_and_add_si ((int *) (mem), (int) (value)); \
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else if (sizeof (*mem) == 8) \
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__result = __sync_fetch_and_add_di ((long *) (mem), (long) (value)); \
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else \
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abort (); \
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__result; })
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#define atomic_decrement_if_positive(mem) \
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({ __typeof (*mem) __oldval, __val; \
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__typeof (mem) __memp = (mem); \
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\
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__val = (*__memp); \
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do \
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{ \
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__oldval = __val; \
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if (__builtin_expect (__val <= 0, 0)) \
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break; \
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__val = atomic_compare_and_exchange_val_acq (__memp, __oldval - 1, \
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__oldval); \
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} \
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while (__builtin_expect (__val != __oldval, 0)); \
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__oldval; })
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#define atomic_bit_test_set(mem, bit) \
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({ __typeof (*mem) __oldval, __val; \
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__typeof (mem) __memp = (mem); \
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__typeof (*mem) __mask = ((__typeof (*mem)) 1 << (bit)); \
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\
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__val = (*__memp); \
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do \
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{ \
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__oldval = __val; \
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__val = atomic_compare_and_exchange_val_acq (__memp, \
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__oldval | __mask, \
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__oldval); \
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} \
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while (__builtin_expect (__val != __oldval, 0)); \
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__oldval & __mask; })
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