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