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libexec/rtld-elf/rtld-libc/rtld_libc.h
- This file was added.
/*- | |||||
* SPDX-License-Identifier: BSD-2-Clause | |||||
* | |||||
* Copyright 2019 Alex Richadson <arichardson@FreeBSD.org> | |||||
* | |||||
* This software was developed by SRI International and the University of | |||||
* Cambridge Computer Laboratory (Department of Computer Science and | |||||
* Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the | |||||
* DARPA SSITH research programme. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
*/ | |||||
#ifndef _RTLD_AVOID_LIBC_DEPS_H_ | |||||
#define _RTLD_AVOID_LIBC_DEPS_H_ | |||||
#include <sys/cdefs.h> | |||||
#include <sys/types.h> | |||||
#include <sys/fcntl.h> | |||||
/* Avoid dependencies on libthr (used by closedir/opendir/readdir) */ | |||||
#define __isthreaded 0 | |||||
#define _pthread_mutex_lock(mtx) (void)0 | |||||
#define _pthread_mutex_unlock(mtx) (void)0 | |||||
#define _pthread_mutex_destroy(mtx) (void)0 | |||||
void __sys_exit(int) __dead2; | |||||
int __sys_fcntl(int, int, ...); | |||||
int __sys_close(int); | |||||
int __sys_open(const char *, int, ...); | |||||
int __sys_openat(int, const char *, int, ...); | |||||
int __sys_sigprocmask(int, const sigset_t *, sigset_t *); | |||||
__ssize_t __sys_pread(int, void *, __size_t, __off_t); | |||||
__ssize_t __sys_read(int, void *, __size_t); | |||||
__ssize_t __sys_write(int, const void *, __size_t); | |||||
int __getosreldate(void); | |||||
/* | |||||
* Don't pull in any of the libc wrappers. Instead we use the system call | |||||
* directly inside RTLD to avoid pulling in __libc_interposing (which pulls | |||||
* in lots more object files). | |||||
*/ | |||||
#define exit(status) __sys_exit(status) | |||||
#define _exit(status) __sys_exit(status) | |||||
#define open(path, ...) __sys_open(path, __VA_ARGS__) | |||||
#define close(fd) __sys_close(fd) | |||||
#define _close(fd) __sys_close(fd) | |||||
#define fcntl(fd, cmd, arg) __sys_fcntl(fd, cmd, arg) | |||||
#define _fcntl(fd, cmd, arg) __sys_fcntl(fd, cmd, arg) | |||||
#define read(fd, buf, nbytes) __sys_read(fd, buf, nbytes) | |||||
#define write(fd, buf, nbytes) __sys_write(fd, buf, nbytes) | |||||
#define pread(fd, buf, nbytes, offset) __sys_pread(fd, buf, nbytes, offset) | |||||
#define sigprocmask(how, set, oset) __sys_sigprocmask(how, set, oset) | |||||
#define strerror(errno) rtld_strerror(errno) | |||||
#endif /* _RTLD_AVOID_LIBC_DEPS_H_ */ |