mirror of
https://sourceware.org/git/glibc.git
synced 2025-04-23 10:27:48 +03:00
5a659ccc0e
The kernel is evolving this interface (e.g., removal of the restriction on cross-device copies), and keeping up with that is difficult. Applications which need the function should run kernels which support the system call instead of relying on the imperfect glibc emulation. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/* Set flags signalling availability of kernel features based on given
|
|
kernel version number.
|
|
Copyright (C) 2010-2019 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/>. */
|
|
|
|
#ifndef _KERNEL_FEATURES_H
|
|
#define _KERNEL_FEATURES_H 1
|
|
|
|
#include_next <kernel-features.h>
|
|
|
|
/* Support for statfs64 was added in 5.1. */
|
|
#if __LINUX_KERNEL_VERSION < 0x050100
|
|
# undef __ASSUME_STATFS64
|
|
# define __ASSUME_STATFS64 0
|
|
#endif
|
|
|
|
/* Alpha used to define SysV ipc shmat syscall with a different name. */
|
|
#ifndef __NR_shmat
|
|
# define __NR_shmat __NR_osf_shmat
|
|
#endif
|
|
|
|
#define __ASSUME_RECV_SYSCALL 1
|
|
#define __ASSUME_SEND_SYSCALL 1
|
|
|
|
/* Support for the renameat2 syscall was added in 3.17. */
|
|
#if __LINUX_KERNEL_VERSION < 0x031100
|
|
# undef __ASSUME_RENAMEAT2
|
|
#endif
|
|
|
|
/* Support for the execveat syscall was added in 4.2. */
|
|
#if __LINUX_KERNEL_VERSION < 0x040200
|
|
# undef __ASSUME_EXECVEAT
|
|
#endif
|
|
|
|
/* Support for copy_file_range, statx was added in kernel 4.13. */
|
|
#if __LINUX_KERNEL_VERSION < 0x040D00
|
|
# undef __ASSUME_MLOCK2
|
|
# undef __ASSUME_STATX
|
|
#endif
|
|
|
|
#endif /* _KERNEL_FEATURES_H */
|