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b168057a | 1 | /* Copyright (C) 2011-2015 Free Software Foundation, Inc. |
a63c7fa1 CM |
2 | This file is part of the GNU C Library. |
3 | Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
ab84e3ff PE |
16 | License along with the GNU C Library. If not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
a63c7fa1 CM |
18 | |
19 | #include <bits/wordsize.h> | |
20 | #include <kernel-features.h> | |
21 | ||
22 | /* Provide the common name to allow more code reuse. */ | |
23 | #define __NR__llseek __NR_llseek | |
24 | ||
25 | #if __WORDSIZE == 64 | |
26 | /* By defining the older names, glibc will build syscall wrappers for | |
27 | both pread and pread64; sysdeps/unix/sysv/linux/wordsize-64/pread64.c | |
28 | will suppress generating any separate code for pread64.c. */ | |
29 | #define __NR_pread __NR_pread64 | |
30 | #define __NR_pwrite __NR_pwrite64 | |
31 | #endif | |
32 | ||
33 | /* Provide a dummy argument that can be used to force register | |
34 | alignment for register pairs if required by the syscall ABI. */ | |
35 | #ifdef __ASSUME_ALIGNED_REGISTER_PAIRS | |
36 | #define __ALIGNMENT_ARG 0, | |
37 | #define __ALIGNMENT_COUNT(a,b) b | |
38 | #else | |
39 | #define __ALIGNMENT_ARG | |
40 | #define __ALIGNMENT_COUNT(a,b) a | |
41 | #endif |