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/*-
* 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 1.2 1998/08/20 21:37:22 jb Exp $
*/
#ifndef __GNUC__
#error "GCC is needed to compile this file"
#endif
#include <stdlib.h>
#include <sys/exec.h>
#include <sys/syscall.h>
#include <rtld.h>
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 && argv[0] != NULL) {
char *s;
for (s = __progname; *s != '\0'; s++)
if (*s == '/')
__progname = s + 1;
}
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) );
}
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