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b14e8cb2 MT |
1 | /* Set flags signalling availability of kernel features based on given |
2 | kernel version number. | |
d4697bc9 | 3 | Copyright (C) 2010-2014 Free Software Foundation, Inc. |
b14e8cb2 MT |
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 PE |
17 | License along with the GNU C Library. If not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
b14e8cb2 | 19 | |
fe7b738e RH |
20 | #ifndef _KERNEL_FEATURES_H |
21 | #define _KERNEL_FEATURES_H 1 | |
22 | ||
b14e8cb2 MT |
23 | #define __ASSUME_UTIMES 1 |
24 | ||
742c00d3 MT |
25 | /* Support for the O_CLOEXEC flag was added for alpha in 2.6.23. */ |
26 | #if __LINUX_KERNEL_VERSION >= 0x020617 | |
27 | # define __ASSUME_O_CLOEXEC 1 | |
28 | #endif | |
29 | ||
30 | /* Support for various CLOEXEC and NONBLOCK flags was added for alpha after | |
31 | 2.6.33-rc1. */ | |
32 | #if __LINUX_KERNEL_VERSION >= 0x020621 | |
33 | # define __ASSUME_SOCK_CLOEXEC 1 | |
34 | # define __ASSUME_IN_NONBLOCK 1 | |
35 | #endif | |
36 | ||
5556231d | 37 | /* Support for the pipe2, eventfd2, signalfd4 syscalls was added for alpha |
742c00d3 MT |
38 | after 2.6.33-rc1. */ |
39 | #if __LINUX_KERNEL_VERSION >= 0x020621 | |
40 | # define __ASSUME_PIPE2 1 | |
41 | # define __ASSUME_EVENTFD2 1 | |
42 | # define __ASSUME_SIGNALFD4 1 | |
43 | #endif | |
44 | ||
0e31b18c JM |
45 | /* Support for recvmmsg was added for alpha in 2.6.33. */ |
46 | #if __LINUX_KERNEL_VERSION >= 0x020621 | |
47 | # define __ASSUME_RECVMMSG_SYSCALL 1 | |
48 | #endif | |
49 | ||
bc688c10 | 50 | /* Support for accept4 and sendmmsg was added for alpha in 3.2. */ |
dd481ccf JM |
51 | #if __LINUX_KERNEL_VERSION >= 0x030200 |
52 | # define __ASSUME_ACCEPT4_SYSCALL 1 | |
bc688c10 | 53 | # define __ASSUME_SENDMMSG_SYSCALL 1 |
742c00d3 MT |
54 | #endif |
55 | ||
b14e8cb2 MT |
56 | #include_next <kernel-features.h> |
57 | ||
58 | #undef __ASSUME_ST_INO_64_BIT | |
59 | ||
60 | /* pselect/ppoll were introduced on alpha just after 2.6.22-rc1. */ | |
61 | #if __LINUX_KERNEL_VERSION < 0x020617 | |
62 | # undef __ASSUME_PSELECT | |
63 | # undef __ASSUME_PPOLL | |
64 | #endif | |
65 | ||
66 | /* The *at syscalls were introduced on alpha just after 2.6.22-rc1. */ | |
67 | #if __LINUX_KERNEL_VERSION < 0x020617 | |
68 | # undef __ASSUME_ATFCTS | |
69 | #endif | |
70 | ||
71 | /* Support for inter-process robust mutexes was added on alpha just | |
72 | after 2.6.22-rc1. */ | |
73 | #if __LINUX_KERNEL_VERSION < 0x020617 | |
74 | # undef __ASSUME_SET_ROBUST_LIST | |
75 | #endif | |
76 | ||
77 | /* Support for utimensat was added on alpha after 2.6.22-rc1. */ | |
78 | #if __LINUX_KERNEL_VERSION < 0x020617 | |
79 | # undef __ASSUME_UTIMENSAT | |
80 | #endif | |
81 | ||
742c00d3 | 82 | /* Support for fallocate was added for alpha after 2.6.33-rc1. */ |
b14e8cb2 MT |
83 | #if __LINUX_KERNEL_VERSION < 0x020621 |
84 | # undef __ASSUME_FALLOCATE | |
85 | #endif | |
fe7b738e RH |
86 | |
87 | /* There never has been support for fstat64. */ | |
88 | #undef __ASSUME_STATFS64 | |
89 | #define __ASSUME_STATFS64 0 | |
90 | ||
563c8405 MF |
91 | /* Support for fsyncdata was added for alpha after 2.6.21. */ |
92 | #if __LINUX_KERNEL_VERSION >= 0x020616 | |
93 | # define __ASSUME_FDATASYNC 1 | |
94 | #endif | |
95 | ||
b1115e91 JM |
96 | /* Support for preadv and pwritev was added for alpha in 2.6.33. */ |
97 | #if __LINUX_KERNEL_VERSION < 0x020621 | |
98 | # undef __ASSUME_PREADV | |
99 | # undef __ASSUME_PWRITEV | |
100 | #endif | |
101 | ||
fe7b738e | 102 | #endif /* _KERNEL_FEATURES_H */ |