52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
/* Set flags signalling availability of kernel features based on given
|
|
kernel version number.
|
|
Copyright (C) 2006-2019 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include_next <kernel-features.h>
|
|
|
|
/* The ARM kernel before 3.14.3 may or may not support
|
|
futex_atomic_cmpxchg_inatomic, depending on kernel
|
|
configuration. */
|
|
#if __LINUX_KERNEL_VERSION < 0x030E03
|
|
# undef __ASSUME_SET_ROBUST_LIST
|
|
#endif
|
|
|
|
/* ARM fadvise64_64 reorganize the syscall arguments. */
|
|
#define __ASSUME_FADVISE64_64_6ARG 1
|
|
|
|
/* Define this if your 32-bit syscall API requires 64-bit register
|
|
pairs to start with an even-number register. */
|
|
#define __ASSUME_ALIGNED_REGISTER_PAIRS 1
|
|
|
|
/* ARM only has a syscall for fadvise64{_64} and it is defined with a
|
|
non-standard name. */
|
|
#define __NR_fadvise64_64 __NR_arm_fadvise64_64
|
|
|
|
#define __ASSUME_RECV_SYSCALL 1
|
|
#define __ASSUME_SEND_SYSCALL 1
|
|
|
|
/* Support for the mlock2 and copy_file_range syscalls was added to
|
|
the compat syscall table for 64-bit kernels in 4.7, although
|
|
present in 32-bit kernels from 4.4 and 4.5 respectively. */
|
|
#if __LINUX_KERNEL_VERSION < 0x040700
|
|
# undef __ASSUME_MLOCK2
|
|
#endif
|
|
|
|
#undef __ASSUME_CLONE_DEFAULT
|
|
#define __ASSUME_CLONE_BACKWARDS 1
|