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482b2f87a8
This patch defines __ASSUME_ALIGNED_REGISTER_PAIRS for the missing ports that require 64-bit value (e.g., long long) to be aligned to an even register pair in argument passing. No code change is expected, tested with builds for powerpc32, mips-o32, and armhf. * sysdeps/unix/sysv/linux/arm/kernel-features.h (__ASSUME_ALIGNED_REGISTER_PAIRS): Define. * sysdeps/unix/sysv/linux/mips/kernel-features.h [_MIPS_SIM == _ABIO32] (__ASSUME_ALIGNED_REGISTER_PAIRS): Likewise. * sysdeps/unix/sysv/linux/powerpc/kernel-features.h [!__powerpc64__] (__ASSUME_ALIGNED_REGISTER_PAIRS): Likewise.
34 lines
1.3 KiB
C
34 lines
1.3 KiB
C
/* Set flags signalling availability of kernel features based on given
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kernel version number.
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Copyright (C) 2006-2016 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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<http://www.gnu.org/licenses/>. */
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#include_next <kernel-features.h>
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/* The ARM kernel before 3.14.3 may or may not support
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futex_atomic_cmpxchg_inatomic, depending on kernel
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configuration. */
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#if __LINUX_KERNEL_VERSION < 0x030E03
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# undef __ASSUME_FUTEX_LOCK_PI
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# undef __ASSUME_REQUEUE_PI
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# undef __ASSUME_SET_ROBUST_LIST
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#endif
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/* Define this if your 32-bit syscall API requires 64-bit register
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pairs to start with an even-number register. */
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#define __ASSUME_ALIGNED_REGISTER_PAIRS 1
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