diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/kernel-features.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/kernel-features.h | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h deleted file mode 100644 index 9495db4fef..0000000000 --- a/sysdeps/unix/sysv/linux/kernel-features.h +++ /dev/null @@ -1,104 +0,0 @@ -/* Set flags signalling availability of kernel features based on given - kernel version number. - Copyright (C) 1999-2017 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/>. */ - -/* This file must not contain any C code. At least it must be protected - to allow using the file also in assembler files. */ - -#ifndef __LINUX_KERNEL_VERSION -/* We assume the worst; all kernels should be supported. */ -# define __LINUX_KERNEL_VERSION 0 -#endif - -/* We assume for __LINUX_KERNEL_VERSION the same encoding used in - linux/version.h. I.e., the major, minor, and subminor all get a - byte with the major number being in the highest byte. This means - we can do numeric comparisons. - - In the following we will define certain symbols depending on - whether the describes kernel feature is available in the kernel - version given by __LINUX_KERNEL_VERSION. We are not always exactly - recording the correct versions in which the features were - introduced. If somebody cares these values can afterwards be - corrected. */ - -/* The sendfile syscall was introduced in 2.2.0. */ -#define __ASSUME_SENDFILE 1 - -/* Some architectures use the socketcall multiplexer for some or all - socket-related operations instead of separate syscalls. - __ASSUME_SOCKETCALL is defined for such architectures. */ - -/* The changed st_ino field appeared in 2.4.0-test6. However, SH is lame, - and still does not have a 64-bit inode field. */ -#define __ASSUME_ST_INO_64_BIT 1 - -/* The statfs64 syscalls are available in 2.5.74 (but not for alpha). */ -#define __ASSUME_STATFS64 1 - -/* pselect/ppoll were introduced just after 2.6.16-rc1. On x86_64 and - SH this appeared first in 2.6.19-rc1, on ia64 in 2.6.22-rc1. */ -#define __ASSUME_PSELECT 1 - -/* The *at syscalls were introduced just after 2.6.16-rc1. On PPC - they were introduced in 2.6.17-rc1, on SH in 2.6.19-rc1. */ -#define __ASSUME_ATFCTS 1 - -/* Support for inter-process robust mutexes was added in 2.6.17 (but - some architectures lack futex_atomic_cmpxchg_inatomic in some - configurations). */ -#define __ASSUME_SET_ROBUST_LIST 1 - -/* Support for private futexes was added in 2.6.22. */ -#define __ASSUME_PRIVATE_FUTEX 1 - -/* Support for various CLOEXEC and NONBLOCK flags was added in - 2.6.27. */ -#define __ASSUME_IN_NONBLOCK 1 - -/* Support for the FUTEX_CLOCK_REALTIME flag was added in 2.6.29. */ -#define __ASSUME_FUTEX_CLOCK_REALTIME 1 - -/* Support for preadv and pwritev was added in 2.6.30. */ -#define __ASSUME_PREADV 1 -#define __ASSUME_PWRITEV 1 - -/* Support for sendmmsg functionality was added in 3.0. */ -#define __ASSUME_SENDMMSG 1 - -/* On most architectures, most socket syscalls are supported for all - supported kernel versions, but on some socketcall architectures - separate syscalls were only added later. */ -#define __ASSUME_SENDMSG_SYSCALL 1 -#define __ASSUME_RECVMSG_SYSCALL 1 -#define __ASSUME_ACCEPT_SYSCALL 1 -#define __ASSUME_CONNECT_SYSCALL 1 -#define __ASSUME_RECVFROM_SYSCALL 1 -#define __ASSUME_SENDTO_SYSCALL 1 -#define __ASSUME_ACCEPT4_SYSCALL 1 -#define __ASSUME_RECVMMSG_SYSCALL 1 -#define __ASSUME_SENDMMSG_SYSCALL 1 - -/* Support for SysV IPC through wired syscalls. All supported architectures - either support ipc syscall and/or all the ipc correspondent syscalls. */ -#define __ASSUME_DIRECT_SYSVIPC_SYSCALLS 1 - -/* Support for p{read,write}v2 was added in 4.6. However Linux default - implementation does not assume the __ASSUME_* and instead use a fallback - implementation based on p{read,write}v and returning an error for - non supported flags. */ |