2013-05-07 02:30:41 +08:00
|
|
|
/* Message-writing for the dynamic linker. Linux version.
|
2015-01-03 00:28:19 +08:00
|
|
|
Copyright (C) 2013-2015 Free Software Foundation, Inc.
|
2013-05-07 02:30:41 +08:00
|
|
|
This file is part of the GNU C Library.
|
|
|
|
|
|
|
|
|
|
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 <sys/uio.h>
|
|
|
|
|
#include <sysdep.h>
|
|
|
|
|
|
|
|
|
|
/* This is used from only one place: dl-misc.c:_dl_debug_vdprintf.
|
|
|
|
|
Hence it's in a header with the expectation it will be inlined.
|
|
|
|
|
|
|
|
|
|
This is writev, but with a constraint added and others loosened:
|
|
|
|
|
|
|
|
|
|
1. Under RTLD_PRIVATE_ERRNO, it must not clobber the private errno
|
|
|
|
|
when another thread holds the dl_load_lock.
|
|
|
|
|
2. It is not obliged to detect and report errors at all.
|
|
|
|
|
3. It's not really obliged to deliver a single atomic write
|
|
|
|
|
(though it may be preferable). */
|
|
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
|
_dl_writev (int fd, const struct iovec *iov, size_t niov)
|
|
|
|
|
{
|
|
|
|
|
INTERNAL_SYSCALL_DECL (err);
|
|
|
|
|
INTERNAL_SYSCALL (writev, err, 3, fd, iov, niov);
|
|
|
|
|
}
|
