projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| ebabc882 DJ |
1 | /* Set flags signalling availability of kernel features based on given |
| 2 | kernel version number. | |
| 6d7e8eda | 3 | Copyright (C) 2006-2023 Free Software Foundation, Inc. |
| ebabc882 DJ |
4 | This file is part of the GNU C Library. |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 7 | modify it under the terms of the GNU Lesser General Public | |
| 8 | License as published by the Free Software Foundation; either | |
| 9 | version 2.1 of the License, or (at your option) any later version. | |
| 10 | ||
| 11 | The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | Lesser General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Lesser General Public | |
| ab84e3ff | 17 | License along with the GNU C Library. If not, see |
| 5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
| ebabc882 | 19 | |
| 2f959dfe | 20 | #include <endian.h> |
| ebabc882 | 21 | #include_next <kernel-features.h> |
| 2b03bcf4 | 22 | |
| 03d41216 | 23 | /* The ARM kernel before 3.14.3 may or may not support |
| 47c5adeb JM |
24 | futex_atomic_cmpxchg_inatomic, depending on kernel |
| 25 | configuration. */ | |
| 03d41216 | 26 | #if __LINUX_KERNEL_VERSION < 0x030E03 |
| 03d41216 GC |
27 | # undef __ASSUME_SET_ROBUST_LIST |
| 28 | #endif | |
| 482b2f87 | 29 | |
| 96b7fe42 AZ |
30 | /* ARM fadvise64_64 reorganize the syscall arguments. */ |
| 31 | #define __ASSUME_FADVISE64_64_6ARG 1 | |
| 32 | ||
| 482b2f87 AZ |
33 | /* Define this if your 32-bit syscall API requires 64-bit register |
| 34 | pairs to start with an even-number register. */ | |
| 35 | #define __ASSUME_ALIGNED_REGISTER_PAIRS 1 | |
| 96b7fe42 AZ |
36 | |
| 37 | /* ARM only has a syscall for fadvise64{_64} and it is defined with a | |
| 38 | non-standard name. */ | |
| 39 | #define __NR_fadvise64_64 __NR_arm_fadvise64_64 | |
| df799d9e AZ |
40 | |
| 41 | #define __ASSUME_RECV_SYSCALL 1 | |
| 60f9423b | 42 | #define __ASSUME_SEND_SYSCALL 1 |
| 3dc21497 | 43 | |
| 1283c478 JM |
44 | /* Support for the mlock2 and copy_file_range syscalls was added to |
| 45 | the compat syscall table for 64-bit kernels in 4.7, although | |
| 46 | present in 32-bit kernels from 4.4 and 4.5 respectively. */ | |
| 596cc360 JM |
47 | #if __LINUX_KERNEL_VERSION < 0x040700 |
| 48 | # undef __ASSUME_MLOCK2 | |
| 49 | #endif | |
| 50 | ||
| 3dc21497 AZ |
51 | #undef __ASSUME_CLONE_DEFAULT |
| 52 | #define __ASSUME_CLONE_BACKWARDS 1 | |
| 2f959dfe AZ |
53 | |
| 54 | #if __BYTE_ORDER == __BIG_ENDIAN | |
| 55 | # define __ASSUME_SYSVIPC_BROKEN_MODE_T | |
| 56 | #endif | |
| 06436acf AZ |
57 | |
| 58 | #undef __ASSUME_SYSVIPC_DEFAULT_IPC_64 |