diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/arm/pwrite.c')
-rw-r--r-- | ports/sysdeps/unix/sysv/linux/arm/pwrite.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/arm/pwrite.c b/ports/sysdeps/unix/sysv/linux/arm/pwrite.c new file mode 100644 index 0000000000..43788e5420 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/arm/pwrite.c @@ -0,0 +1,60 @@ +/* Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2005 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <endian.h> +#include <unistd.h> + +#include <sysdep-cancel.h> +#include <sys/syscall.h> +#include <bp-checks.h> + +ssize_t +__libc_pwrite (fd, buf, count, offset) + int fd; + const void *buf; + size_t count; + off_t offset; +{ + ssize_t result; + + if (SINGLE_THREAD_P) + { + /* In the ARM EABI, 64-bit values are aligned to even/odd register + pairs for syscalls. */ + result = INLINE_SYSCALL (pwrite64, 6, fd, CHECK_N (buf, count), count, 0, + __LONG_LONG_PAIR (offset >> 31, offset)); + + return result; + } + + int oldtype = LIBC_CANCEL_ASYNC (); + + /* In the ARM EABI, 64-bit values are aligned to even/odd register + pairs for syscalls. */ + result = INLINE_SYSCALL (pwrite64, 6, fd, CHECK_N (buf, count), count, 0, + __LONG_LONG_PAIR (offset >> 31, offset)); + + LIBC_CANCEL_RESET (oldtype); + + return result; +} + +strong_alias (__libc_pwrite, __pwrite) +weak_alias (__libc_pwrite, pwrite) |