glibc/sysdeps/unix/sysv/linux/i386/kernel-features.h

54 lines
1.9 KiB
C

/* Set flags signalling availability of kernel features based on given
kernel version number. i386 version.
Copyright (C) 1999-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* Direct socketcalls available with kernel 4.3. */
#if __LINUX_KERNEL_VERSION >= 0x040300
# define __ASSUME_SOCKET_SYSCALL 1
# define __ASSUME_SOCKETPAIR_SYSCALL 1
# define __ASSUME_BIND_SYSCALL 1
# define __ASSUME_LISTEN_SYSCALL 1
# define __ASSUME_GETSOCKOPT_SYSCALL 1
# define __ASSUME_SETSOCKOPT_SYSCALL 1
# define __ASSUME_GETSOCKNAME_SYSCALL 1
# define __ASSUME_GETPEERNAME_SYSCALL 1
# define __ASSUME_SHUTDOWN_SYSCALL 1
#endif
#include_next <kernel-features.h>
#undef __ASSUME_ACCEPT_SYSCALL
#if __LINUX_KERNEL_VERSION < 0x040300
# undef __ASSUME_ACCEPT4_SYSCALL
# undef __ASSUME_SENDMSG_SYSCALL
# undef __ASSUME_RECVMSG_SYSCALL
# undef __ASSUME_CONNECT_SYSCALL
# undef __ASSUME_RECVFROM_SYSCALL
# undef __ASSUME_SENDTO_SYSCALL
#endif
/* i686 only supports ipc syscall before 5.1. */
#if __LINUX_KERNEL_VERSION < 0x050100
# undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
# undef __ASSUME_SYSVIPC_DEFAULT_IPC_64
#endif
#undef __ASSUME_CLONE_DEFAULT
#define __ASSUME_CLONE_BACKWARDS 1