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bc688c1029
Similar to the issues for accept4 and recvmmsg, __ASSUME_SENDMMSG is also confused about whether it relates to function availability or socketcall operation availability, and the conditions for the definition are always wrong (sendmmsg appeared in Linux kernel 3.0, not 2.6.39); this is now bug 16611. This patch splits the macro into separate macros like those for accept4 and recvmmsg, defining them for appropriate kernel versions. Tested x86_64, including that disassembly of the installed shared libraries is unchanged by this patch. [BZ #16611] * sysdeps/unix/sysv/linux/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x030000 && __ASSUME_SOCKETCALL] (__ASSUME_SENDMMSG_SOCKETCALL): Define. [__LINUX_KERNEL_VERSION >= 0x030000 && (__i386__ || __x86_64__ || __powerpc__ || __sh__ || __sparc__)] (__ASSUME_SENDMMSG_SYSCALL): Likewise. [__i386__ || __powerpc__ || __sh__ || __sparc__] (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. [__ASSUME_SENDMMSG_SOCKETCALL || __ASSUME_SENDMMSG_SYSCALL] (__ASSUME_SENDMMSG): Define instead of using previous [__LINUX_KERNEL_VERSION >= 0x020627] condition. * sysdeps/unix/sysv/linux/aarch64/kernel-features.h (__ASSUME_SENDMMSG_SYSCALL): Define. * sysdeps/unix/sysv/linux/alpha/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x030200] (__ASSUME_SENDMMSG_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/arm/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x030000] (__ASSUME_SENDMMSG_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/ia64/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x030000] (__ASSUME_SENDMMSG_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/internal_sendmmsg.S [__ASSUME_SOCKETCALL && !__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL && !__ASSUME_SENDMMSG_SYSCALL] (__NR_sendmmsg): Undefine. [__ASSUME_SENDMMSG]: Change conditionals to [__ASSUME_SENDMMSG_SOCKETCALL]. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x030300] (__ASSUME_SENDMMSG_SYSCALL): Define. * sysdeps/unix/sysv/linux/mips/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x030100] (__ASSUME_SENDMMSG_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sendmmsg.c [__ASSUME_SOCKETCALL && !__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL && !__ASSUME_SENDMMSG_SYSCALL] (__NR_sendmmsg): Undefine. [!__ASSUME_SENDMMSG]: Change conditional to [!__ASSUME_SENDMMSG_SOCKETCALL]. * sysdeps/unix/sysv/linux/tile/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x030000] (__ASSUME_SENDMMSG_SYSCALL): Define. * sysdeps/unix/sysv/linux/hppa/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x030100] (__ASSUME_SENDMMSG_SYSCALL): Define.
97 lines
2.9 KiB
C
97 lines
2.9 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) 2010-2014 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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#ifndef _KERNEL_FEATURES_H
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#define _KERNEL_FEATURES_H 1
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#define __ASSUME_UTIMES 1
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/* Support for the O_CLOEXEC flag was added for alpha in 2.6.23. */
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#if __LINUX_KERNEL_VERSION >= 0x020617
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# define __ASSUME_O_CLOEXEC 1
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#endif
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/* Support for various CLOEXEC and NONBLOCK flags was added for alpha after
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2.6.33-rc1. */
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#if __LINUX_KERNEL_VERSION >= 0x020621
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# define __ASSUME_SOCK_CLOEXEC 1
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# define __ASSUME_IN_NONBLOCK 1
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#endif
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/* Support for the pipe2, eventfd2, signalfd4 syscalls was added for alpha
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after 2.6.33-rc1. */
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#if __LINUX_KERNEL_VERSION >= 0x020621
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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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#endif
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/* Support for recvmmsg was added for alpha in 2.6.33. */
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#if __LINUX_KERNEL_VERSION >= 0x020621
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# define __ASSUME_RECVMMSG_SYSCALL 1
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#endif
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/* Support for accept4 and sendmmsg was added for alpha in 3.2. */
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#if __LINUX_KERNEL_VERSION >= 0x030200
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# define __ASSUME_ACCEPT4_SYSCALL 1
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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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#undef __ASSUME_ST_INO_64_BIT
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/* pselect/ppoll were introduced on alpha just after 2.6.22-rc1. */
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#if __LINUX_KERNEL_VERSION < 0x020617
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# undef __ASSUME_PSELECT
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# undef __ASSUME_PPOLL
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#endif
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/* The *at syscalls were introduced on alpha just after 2.6.22-rc1. */
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#if __LINUX_KERNEL_VERSION < 0x020617
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# undef __ASSUME_ATFCTS
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#endif
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/* Support for inter-process robust mutexes was added on alpha just
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after 2.6.22-rc1. */
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#if __LINUX_KERNEL_VERSION < 0x020617
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# undef __ASSUME_SET_ROBUST_LIST
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#endif
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/* Support for utimensat was added on alpha after 2.6.22-rc1. */
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#if __LINUX_KERNEL_VERSION < 0x020617
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# undef __ASSUME_UTIMENSAT
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#endif
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/* Support for fallocate was added for alpha after 2.6.33-rc1. */
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#if __LINUX_KERNEL_VERSION < 0x020621
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# undef __ASSUME_FALLOCATE
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#endif
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/* There never has been support for fstat64. */
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#undef __ASSUME_STATFS64
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#define __ASSUME_STATFS64 0
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/* Support for fsyncdata was added for alpha after 2.6.21. */
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#if __LINUX_KERNEL_VERSION >= 0x020616
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# define __ASSUME_FDATASYNC 1
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#endif
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#endif /* _KERNEL_FEATURES_H */
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