diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c')
-rw-r--r-- | ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c new file mode 100644 index 0000000000..1afc13d245 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c @@ -0,0 +1,59 @@ +/* Copyright (C) 2011 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. + Based on work 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 <kernel-features.h> + +static ssize_t +do_pwrite64 (int fd, const void *buf, size_t count, off64_t offset) +{ + return INLINE_SYSCALL (pwrite64, __ALIGNMENT_COUNT (5, 6), fd, + buf, count, __ALIGNMENT_ARG + __LONG_LONG_PAIR ((off_t) (offset >> 32), + (off_t) (offset & 0xffffffff))); +} + + +ssize_t +__libc_pwrite64 (fd, buf, count, offset) + int fd; + const void *buf; + size_t count; + off64_t offset; +{ + if (SINGLE_THREAD_P) + return do_pwrite64 (fd, buf, count, offset); + + int oldtype = LIBC_CANCEL_ASYNC (); + + ssize_t result = do_pwrite64 (fd, buf, count, offset); + + LIBC_CANCEL_RESET (oldtype); + + return result; +} + +weak_alias (__libc_pwrite64, __pwrite64) +libc_hidden_weak (__pwrite64) weak_alias (__libc_pwrite64, pwrite64) |