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/*
* 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;
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));
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 the kernel or a shared library wants us to call
* a termination function, arrange to do so.
*/
if (term)
atexit(term);
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
/*
* NOTE: Leave the RCS ID _after_ __start(), in case it gets placed in .text.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
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