1 /* Copyright (C) 1997, 1998, 2000, 2002, 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
25 #include <sysdep-cancel.h>
26 #include <sys/syscall.h>
27 #include <bp-checks.h>
29 #include <kernel-features.h>
31 #ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */
33 # error "__NR_pwrite and __NR_pwrite64 both defined???"
35 # define __NR_pwrite __NR_pwrite64
38 #if defined __NR_pwrite || __ASSUME_PWRITE_SYSCALL > 0
40 extern ssize_t __syscall_pwrite (int fd, const void *__unbounded buf, size_t count,
42 #if defined _ABI64 && _MIPS_SIM == _ABI64
45 off_t offset_hi, off_t offset_lo
49 # if __ASSUME_PWRITE_SYSCALL == 0
50 static ssize_t __emulate_pwrite (int fd, const void *buf, size_t count,
51 off_t offset) internal_function;
55 __libc_pwrite (fd, buf, count, offset)
65 /* First try the syscall. */
66 assert (sizeof (offset) == 4);
67 #if defined _ABI64 && _MIPS_SIM == _ABI64
68 result = INLINE_SYSCALL (pwrite, 5, fd, CHECK_N (buf, count), count, 0,
71 result = INLINE_SYSCALL (pwrite, 6, fd, CHECK_N (buf, count), count, 0,
72 __LONG_LONG_PAIR (offset >> 31, offset));
74 # if __ASSUME_PWRITE_SYSCALL == 0
75 if (result == -1 && errno == ENOSYS)
76 /* No system call available. Use the emulation. */
77 result = __emulate_pwrite (fd, buf, count, offset);
83 int oldtype = LIBC_CANCEL_ASYNC ();
85 /* First try the syscall. */
86 assert (sizeof (offset) == 4);
87 #if defined _ABI64 && _MIPS_SIM == _ABI64
88 result = INLINE_SYSCALL (pwrite, 5, fd, CHECK_N (buf, count), count, 0,
91 result = INLINE_SYSCALL (pwrite, 6, fd, CHECK_N (buf, count), count, 0,
92 __LONG_LONG_PAIR (offset >> 31, offset));
94 # if __ASSUME_PWRITE_SYSCALL == 0
95 if (result == -1 && errno == ENOSYS)
96 /* No system call available. Use the emulation. */
97 result = __emulate_pwrite (fd, buf, count, offset);
100 LIBC_CANCEL_RESET (oldtype);
105 strong_alias (__libc_pwrite, __pwrite)
106 weak_alias (__libc_pwrite, pwrite)
108 # define __libc_pwrite(fd, buf, count, offset) \
109 static internal_function __emulate_pwrite (fd, buf, count, offset)
112 #if __ASSUME_PWRITE_SYSCALL == 0
113 # include <sysdeps/posix/pwrite.c>