1/* $NetBSD: common.h,v 1.14 2011/02/22 05:45:06 joerg Exp $ */ 2 3/* 4 * Copyright (c) 1995 Christopher G. Demetriou 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the 18 * NetBSD Project. See http://www.NetBSD.org/ for 19 * information about NetBSD. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>> 35 */ 36 37#include <sys/types.h> 38#include <sys/exec.h> 39#include <sys/syscall.h> 40 41#include <stdlib.h> 42#ifdef DYNAMIC 43#ifdef __weak_alias 44#define dlopen _dlopen 45#define dlclose _dlclose 46#define dlsym _dlsym 47#define dlerror _dlerror 48#define dladdr _dladdr 49#endif 50#include <dlfcn.h> 51#include "rtld.h" 52#else 53typedef void Obj_Entry; 54#endif 55 56extern quad_t __syscall(quad_t, ...); 57#define _exit(v) __syscall(SYS_exit, (v)) 58#define write(fd, s, n) __syscall(SYS_write, (fd), (s), (n)) 59 60#define _FATAL(str) \ 61do { \ 62 write(2, str, sizeof(str)-1); \ 63 _exit(1); \ 64} while (0) 65 66static char *_strrchr(char *, int); 67 68char **environ; 69char *__progname = ""; 70struct ps_strings *__ps_strings = 0; 71 72extern void _init(void); 73extern void _fini(void); 74extern void _libc_init(void); 75 76#ifdef DYNAMIC 77void _rtld_setup(void (*)(void), const Obj_Entry *obj); 78 79/* 80 * Arrange for _DYNAMIC to be weak and undefined (and therefore to show up 81 * as being at address zero, unless something else defines it). That way, 82 * if we happen to be compiling without -static but with without any 83 * shared libs present, things will still work. 84 */ 85__weakref_visible int rtld_DYNAMIC __weak_reference(_DYNAMIC); 86#endif /* DYNAMIC */ 87 88#ifdef MCRT0 89extern void monstartup(u_long, u_long); 90extern void _mcleanup(void); 91extern unsigned char _etext, _eprol; 92#endif /* MCRT0 */ 93 94int main(int, char **, char **); 95