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1270fbaaee
This consolidates the copy-pasted arch specific semaphore header into single version (based on s390) which suffices 32-bit and and 64-bit arch/ABI based on the canonical WORDSIZE. For now I've left out arches which use alternate defines to choose for 32 vs 64-bit builds (aarch64, mips) which in theory can also use the same header. Passes build-many for aarch64-linux-gnu arm-linux-gnueabi arm-linux-gnueabihf riscv64-linux-gnu-rv64imac-lp64 riscv64-linux-gnu-rv64imafdc-lp64 x86_64-linux-gnu microblaze-linux-gnu nios2-linux-gnu Suggested-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* Generic POSIX semaphore type layout
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Copyright (C) 1995-2020 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, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _SEMAPHORE_H
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# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
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#endif
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#include <bits/wordsize.h>
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#if __WORDSIZE == 64
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# define __SIZEOF_SEM_T 32
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#else
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# define __SIZEOF_SEM_T 16
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#endif
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/* Value returned if `sem_open' failed. */
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#define SEM_FAILED ((sem_t *) 0)
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typedef union
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{
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char __size[__SIZEOF_SEM_T];
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long int __align;
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} sem_t;
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