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b168057a | 1 | /* Copyright (C) 1997-2015 Free Software Foundation, Inc. |
de96d148 DJ |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. | |
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/>. */ | |
de96d148 DJ |
18 | |
19 | #include <errno.h> | |
20 | #include <endian.h> | |
21 | #include <unistd.h> | |
22 | ||
23 | #include <sysdep-cancel.h> | |
24 | #include <sys/syscall.h> | |
de96d148 DJ |
25 | |
26 | ssize_t | |
14bb4e57 | 27 | __libc_pwrite (int fd, const void *buf, size_t count, off_t offset) |
de96d148 DJ |
28 | { |
29 | ssize_t result; | |
30 | ||
31 | if (SINGLE_THREAD_P) | |
32 | { | |
33 | /* In the ARM EABI, 64-bit values are aligned to even/odd register | |
34 | pairs for syscalls. */ | |
a2da1673 | 35 | result = INLINE_SYSCALL (pwrite64, 6, fd, buf, count, 0, |
de96d148 DJ |
36 | __LONG_LONG_PAIR (offset >> 31, offset)); |
37 | ||
38 | return result; | |
39 | } | |
40 | ||
41 | int oldtype = LIBC_CANCEL_ASYNC (); | |
42 | ||
43 | /* In the ARM EABI, 64-bit values are aligned to even/odd register | |
44 | pairs for syscalls. */ | |
a2da1673 | 45 | result = INLINE_SYSCALL (pwrite64, 6, fd, buf, count, 0, |
de96d148 DJ |
46 | __LONG_LONG_PAIR (offset >> 31, offset)); |
47 | ||
48 | LIBC_CANCEL_RESET (oldtype); | |
49 | ||
50 | return result; | |
51 | } | |
52 | ||
53 | strong_alias (__libc_pwrite, __pwrite) | |
54 | weak_alias (__libc_pwrite, pwrite) |