110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
/* $NetBSD: crt0.c,v 1.2 2001/07/17 06:39:14 matt Exp $ */
|
|
|
|
/*
|
|
* Copyright (C) 1997 Mark Brinicombe
|
|
* Copyright (C) 1995 Wolfgang Solfrank.
|
|
* Copyright (C) 1995 TooLs GmbH.
|
|
* 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 TooLs GmbH.
|
|
* 4. The name of TooLs GmbH may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
#include <machine/asm.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "common.h"
|
|
|
|
extern void _start(void);
|
|
void __start(int, char *[], char *[], struct ps_strings *,
|
|
const Obj_Entry *, void (*)());
|
|
|
|
__asm("
|
|
.text
|
|
.align 0
|
|
.global _start
|
|
_start:
|
|
mov r5, r2 /* cleanup */
|
|
mov r4, r1 /* obj_main */
|
|
mov r3, r0 /* ps_strings */
|
|
/* Get argc, argv, and envp from stack */
|
|
ldr r0, [sp, #0x0000]
|
|
add r1, sp, #0x0004
|
|
add r2, r1, r0, lsl #2
|
|
add r2, r2, #0x0004
|
|
|
|
sub sp, sp, #8
|
|
str r5, [sp, #4]
|
|
str r4, [sp, #0]
|
|
|
|
b " ___STRING(_C_LABEL(__start)) "
|
|
");
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
__RCSID("$NetBSD: crt0.c,v 1.2 2001/07/17 06:39:14 matt Exp $");
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
void
|
|
__start(int argc, char **argv, char **envp, struct ps_strings *ps_strings,
|
|
const Obj_Entry *obj, void (*cleanup)(void))
|
|
{
|
|
char *ap;
|
|
|
|
environ = envp;
|
|
__ps_strings = ps_strings;
|
|
|
|
if ((ap = argv[0]))
|
|
if ((__progname = _strrchr(ap, '/')) == NULL)
|
|
__progname = ap;
|
|
else
|
|
++__progname;
|
|
|
|
#ifdef DYNAMIC
|
|
/* ld(1) convention: if DYNAMIC = 0 then statically linked */
|
|
#ifdef stupid_gcc
|
|
if (&_DYNAMIC)
|
|
#else
|
|
if ( ({volatile caddr_t x = (caddr_t)&_DYNAMIC; x; }) )
|
|
#endif
|
|
_rtld_setup(cleanup, obj);
|
|
#endif /* DYNAMIC */
|
|
|
|
#ifdef MCRT0
|
|
atexit(_mcleanup);
|
|
monstartup((u_long)&_eprol, (u_long)&_etext);
|
|
#endif /* MCRT0 */
|
|
|
|
atexit(_fini);
|
|
_init();
|
|
|
|
__asm("__callmain:"); /* Defined for the benefit of debuggers */
|
|
exit(main(argc, argv, envp));
|
|
}
|
|
|
|
#include "common.c"
|
|
|