138 lines
4.0 KiB
C
138 lines
4.0 KiB
C
|
/* LINTLIBRARY */
|
||
|
|
/*-
|
||
|
|
* Copyright 2001 David E. O'Brien.
|
||
|
|
* All rights reserved.
|
||
|
|
* Copyright 1996-1998 John D. Polstra.
|
||
|
|
* All rights reserved.
|
||
|
|
* Copyright (c) 1997 Jason R. Thorpe.
|
||
|
|
* 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 for the
|
||
|
|
* FreeBSD Project. See http://www.freebsd.org/ for
|
||
|
|
* information about FreeBSD.
|
||
|
|
* This product includes software developed for the
|
||
|
|
* NetBSD Project. See http://www.netbsd.org/ for
|
||
|
|
* information about NetBSD.
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef lint
|
||
|
|
#ifndef __GNUC__
|
||
|
|
#error "GCC is needed to compile this file"
|
||
|
|
#endif
|
||
|
|
#endif /* lint */
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#include "libc_private.h"
|
||
|
|
#include "crtbrand.c"
|
||
|
|
#include <machine/asm.h>
|
||
|
|
|
||
|
|
struct Struct_Obj_Entry;
|
||
|
|
struct ps_strings;
|
||
|
|
|
||
|
|
extern int _DYNAMIC;
|
||
|
|
#pragma weak _DYNAMIC
|
||
|
|
|
||
|
|
extern void _fini(void);
|
||
|
|
extern void _init(void);
|
||
|
|
extern int main(int, char **, char **);
|
||
|
|
extern void _start(int, char **, char **, const struct Struct_Obj_Entry *,
|
||
|
|
void (*)(void), struct ps_strings *);
|
||
|
|
|
||
|
|
#ifdef GCRT
|
||
|
|
extern void _mcleanup(void);
|
||
|
|
extern void monstartup(void *, void *);
|
||
|
|
extern int eprol;
|
||
|
|
extern int etext;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
char **environ;
|
||
|
|
const char *__progname = "";
|
||
|
|
struct ps_strings *__ps_strings;
|
||
|
|
|
||
|
|
/* The entry function. */
|
||
|
|
__asm(" .text \n"
|
||
|
|
" .align 0 \n"
|
||
|
|
" .globl _start \n"
|
||
|
|
" _start: \n"
|
||
|
|
" mov r5, r2 /* cleanup */ \n"
|
||
|
|
" mov r4, r1 /* obj_main */ \n"
|
||
|
|
" mov r3, r0 /* ps_strings */ \n"
|
||
|
|
" /* Get argc, argv, and envp from stack */ \n"
|
||
|
|
" ldr r0, [sp, #0x0000] \n"
|
||
|
|
" add r1, sp, #0x0004 \n"
|
||
|
|
" add r2, r1, r0, lsl #2 \n"
|
||
|
|
" add r2, r2, #0x0004 \n"
|
||
|
|
" /* Ensure the stack is properly aligned before calling C code. */\n"
|
||
|
|
" bic sp, sp, #7 \n"
|
||
|
|
" sub sp, sp, #8 \n"
|
||
|
|
" str r5, [sp, #4] \n"
|
||
|
|
" str r4, [sp, #0] \n"
|
||
|
|
"\n"
|
||
|
|
" b __start ");
|
||
|
|
/* ARGSUSED */
|
||
|
|
void
|
||
|
|
__start(int argc, char **argv, char **env,
|
||
|
|
const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void),
|
||
|
|
struct ps_strings *ps_strings)
|
||
|
|
{
|
||
|
|
const char *s;
|
||
|
|
|
||
|
|
environ = env;
|
||
|
|
|
||
|
|
if (argc > 0 && argv[0] != NULL) {
|
||
|
|
__progname = argv[0];
|
||
|
|
for (s = __progname; *s != '\0'; s++)
|
||
|
|
if (*s == '/')
|
||
|
|
__progname = s + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ps_strings != (struct ps_strings *)0)
|
||
|
|
__ps_strings = ps_strings;
|
||
|
|
|
||
|
|
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
|
||
|
|
|
||
|
|
__asm__(".ident\t\"$FreeBSD$\"");
|