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b1115e916a
Reviewing (for all architectures, with a baseline kernel version of 2.6.32) the kernel support for features for which __ASSUME_* macros would be affected by a move to 2.6.32 as minimum kernel version showed up that __ASSUME_PREADV and __ASSUME_PWRITEV were wrongly defined for MicroBlaze (despite the corresponding syscall table entries not being wired up in the kernel) and Alpha for 2.6.30 and above (although the support on Alpha was added in 2.6.33). This patch makes the kernel-features.h files undefine those macros for appropriate versions. [BZ #16649] * sysdeps/unix/sysv/linux/alpha/kernel-features.h [__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_PREADV): Undefine. [__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_PWRITEV): Likewise. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h (__ASSUME_PREADV): Undefine. (__ASSUME_PWRITEV): Likewise.
51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/* Copyright (C) 2011-2014 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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/* MicroBlaze uses socketcall. */
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#define __ASSUME_SOCKETCALL 1
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/* MicroBlaze glibc support starts with 2.6.30, guaranteeing many kernel features. */
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#define __ASSUME_UTIMES 1
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#define __ASSUME_O_CLOEXEC 1
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#define __ASSUME_SOCK_CLOEXEC 1
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#define __ASSUME_IN_NONBLOCK 1
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#define __ASSUME_PIPE2 1
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#define __ASSUME_EVENTFD2 1
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#define __ASSUME_SIGNALFD4 1
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#define __ASSUME_DUP3 1
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/* Support for the accept4 and recvmmsg syscalls was added in 2.6.33. */
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#if __LINUX_KERNEL_VERSION >= 0x020621
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# define __ASSUME_ACCEPT4_SYSCALL 1
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# define __ASSUME_RECVMMSG_SYSCALL 1
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#endif
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#define __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL 1
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/* Support for the sendmmsg syscall was added in 3.3. */
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#if __LINUX_KERNEL_VERSION >= 0x030300
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# define __ASSUME_SENDMMSG_SYSCALL 1
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#endif
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#include_next <kernel-features.h>
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/* The MicroBlaze kernel does not support the pselect6, preadv and
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pwritev syscalls. */
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#undef __ASSUME_PSELECT
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#undef __ASSUME_PREADV
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#undef __ASSUME_PWRITEV
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