/*- * Copyright 1996-1998 John D. Polstra. * All rights reserved. * Copyright (c) 1995 Christopher G. Demetriou * All rights reserved. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Christopher G. Demetriou * for the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. * * $Id: crt1.c,v 1.1.1.2 1998/03/11 20:36:09 jb Exp $ */ #ifndef __GNUC__ #error "GCC is needed to compile this file" #endif #include #include #include #include const Obj_Entry *__mainprog_obj; extern int __syscall (int, ...); #define _exit(v) __syscall(SYS_exit, (v)) #define write(fd, s, n) __syscall(SYS_write, (fd), (s), (n)) #define _FATAL(str) \ do { \ write(2, str, sizeof(str)); \ _exit(1); \ } while (0) #pragma weak _DYNAMIC extern int _DYNAMIC; extern void _init(void); extern void _fini(void); extern int main(int, char **, char **); char **environ; char *__progname = ""; /* The entry function. */ void _start(char **ap, void (*cleanup)(void), /* from shared loader */ const Obj_Entry *obj, /* from shared loader */ struct ps_strings *ps_strings) { int argc; char **argv; char **env; argc = * (long *) ap; argv = ap + 1; env = ap + 2 + argc; environ = env; if(argc > 0) __progname = argv[0]; if (&_DYNAMIC != NULL) { if ((obj == NULL) || (obj->magic != RTLD_MAGIC)) _FATAL("Corrupt Obj_Entry pointer in GOT"); if (obj->version != RTLD_VERSION) _FATAL("Dynamic linker version mismatch"); __mainprog_obj = obj; atexit(cleanup); } atexit(_fini); _init(); exit( main(argc, argv, env) ); }