78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/*-
|
|
* Copyright 1996-1998 John D. Polstra.
|
|
* 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.
|
|
*
|
|
* 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 1.4 1996/04/12 02:24:35 jdp Exp $
|
|
*/
|
|
|
|
#ifndef __GNUC__
|
|
#error "GCC is needed to compile this file"
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
|
|
typedef void (*fptr)(void);
|
|
|
|
extern void _fini(void);
|
|
extern void _init(void);
|
|
extern int main(int, char **, char **);
|
|
|
|
extern int _DYNAMIC;
|
|
#pragma weak _DYNAMIC
|
|
|
|
#ifdef __i386__
|
|
#define get_rtld_cleanup() \
|
|
({ fptr __value; \
|
|
__asm__("movl %%edx,%0" : "=rm"(__value)); \
|
|
__value; })
|
|
#else
|
|
#error "This file only supports the i386 architecture"
|
|
#endif
|
|
|
|
char **environ;
|
|
char *__progname = "";
|
|
|
|
void
|
|
_start(char *arguments, ...)
|
|
{
|
|
fptr rtld_cleanup;
|
|
int argc;
|
|
char **argv;
|
|
char **env;
|
|
|
|
rtld_cleanup = get_rtld_cleanup();
|
|
argv = &arguments;
|
|
argc = * (int *) (argv - 1);
|
|
env = argv + argc + 1;
|
|
environ = env;
|
|
if(argc > 0)
|
|
__progname = argv[0];
|
|
|
|
if(&_DYNAMIC != 0)
|
|
atexit(rtld_cleanup);
|
|
|
|
atexit(_fini);
|
|
_init();
|
|
exit( main(argc, argv, env) );
|
|
}
|