f2602cd538
doubtful this will ever be used by anything and rtld uses %g1. Comment out references to _init and _fini for now too.
138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
/*
|
|
* Copyright 2001 David E. O'Brien
|
|
* All rights reserved.
|
|
* Copyright (c) 1995, 1998 Berkeley Software Design, Inc.
|
|
* All rights reserved.
|
|
* 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.
|
|
* 3. The name of the authors 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 __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. */
|
|
/*
|
|
*
|
|
* %o0 holds ps_strings pointer. For Solaris compat and/or shared
|
|
* libraries, if %g1 is not 0, it is a routine to pass to atexit().
|
|
* (By passing the pointer in the usual argument register, we avoid
|
|
* having to do any inline assembly, except to recover %g1.)
|
|
*
|
|
* Note: kernel may (is not set in stone yet) pass ELF aux vector in %o1,
|
|
* but for now we do not use it here.
|
|
*/
|
|
void
|
|
_start(char **ap,
|
|
void (*cleanup)(void), /* from shared loader */
|
|
struct Struct_Obj_Entry *obj, /* from shared loader */
|
|
struct ps_strings *ps_strings)
|
|
{
|
|
int argc;
|
|
char **argv;
|
|
char **env;
|
|
#if 0
|
|
void (*term)(void);
|
|
|
|
/* Grab %g1 before it gets used for anything by the compiler. */
|
|
/* Sparc ELF psABI specifies a termination routine (if any) will be in
|
|
%g1 */
|
|
__asm__ volatile("mov %%g1,%0" : "=r"(term));
|
|
#endif
|
|
|
|
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 0
|
|
/*
|
|
* If the kernel or a shared library wants us to call
|
|
* a termination function, arrange to do so.
|
|
*/
|
|
if (term)
|
|
atexit(term);
|
|
#endif
|
|
|
|
if (&_DYNAMIC != NULL)
|
|
atexit(cleanup);
|
|
|
|
#ifdef GCRT
|
|
atexit(_mcleanup);
|
|
#endif
|
|
#if 0
|
|
atexit(_fini);
|
|
#endif
|
|
#ifdef GCRT
|
|
monstartup(&eprol, &etext);
|
|
#endif
|
|
#if 0
|
|
_init();
|
|
#endif
|
|
exit( main(argc, argv, env) );
|
|
}
|
|
|
|
#ifdef GCRT
|
|
__asm__(".text");
|
|
__asm__("eprol:");
|
|
__asm__(".previous");
|
|
#endif
|
|
|
|
/*
|
|
* NOTE: Leave the RCS ID _after_ __start(), in case it gets placed in .text.
|
|
*/
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|