mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef __GNUC__
|
|
#error "GCC is needed to compile this file"
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include "crtbrand.c"
|
|
|
|
struct Struct_Obj_Entry;
|
|
struct ps_strings;
|
|
|
|
#pragma weak _DYNAMIC
|
|
extern int _DYNAMIC;
|
|
|
|
extern void _init(void);
|
|
extern void _fini(void);
|
|
extern int main(int, char **, char **);
|
|
|
|
#ifdef GCRT
|
|
extern void _mcleanup(void);
|
|
extern void monstartup(void *, void *);
|
|
extern int eprol;
|
|
extern int etext;
|
|
#endif
|
|
|
|
char **environ;
|
|
char *__progname = "";
|
|
|
|
/* The entry function. */
|
|
void
|
|
_start(char **ap,
|
|
struct ps_strings *ps_strings,
|
|
void (*cleanup)(void))
|
|
{
|
|
int argc;
|
|
char **argv;
|
|
char **env;
|
|
|
|
/* Calculate gp */
|
|
__asm __volatile(" \
|
|
movl gp=@gprel(1f) ; \
|
|
;; ; \
|
|
1: mov r14=ip ; \
|
|
;; ; \
|
|
sub gp=r14,gp ; \
|
|
;; ");
|
|
|
|
argc = * (long *) ap;
|
|
argv = ap + 1;
|
|
env = ap + 2 + argc;
|
|
environ = env;
|
|
if(argc > 0 && argv[0] != NULL) {
|
|
char *s;
|
|
__progname = argv[0];
|
|
for (s = __progname; *s != '\0'; s++)
|
|
if (*s == '/')
|
|
__progname = s + 1;
|
|
}
|
|
|
|
if (&_DYNAMIC != NULL)
|
|
atexit(cleanup);
|
|
|
|
#ifdef GCRT
|
|
atexit(_mcleanup);
|
|
#endif
|
|
atexit(_fini);
|
|
#ifdef GCRT
|
|
monstartup(&eprol, &etext);
|
|
#endif
|
|
_init();
|
|
exit( main(argc, argv, env) );
|
|
}
|
|
|
|
#ifdef GCRT
|
|
__asm__(".text");
|
|
__asm__("eprol:");
|
|
__asm__(".previous");
|
|
#endif
|