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/* $OpenBSD: crt0.c,v 1.15 2020/10/14 22:11:18 deraadt Exp $ */
/*
* 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.
*/
#include <sys/syscall.h>
#include <stdlib.h>
#include <limits.h>
#include "md_init.h"
#ifdef MD_RCRT0_START
#include "boot.h"
#endif
#include "extern.h"
#define STR(x) __STRING(x) /* shorter macro name for MD_RCRT0_START */
/* some defaults */
#ifndef MD_START_ARGS
#define MD_START_ARGS \
int argc, char **argv, char **envp, void (*cleanup)(void)
#endif
static void ___start(MD_START_ARGS) __used;
#ifndef MD_EPROL_LABEL
#define MD_EPROL_LABEL __asm(" .text\n_eprol:")
#endif
#ifndef RCRT0_RELRO
#define RCRT0_RELRO() do {} while (0)
#endif
char ***_csu_finish(char **_argv, char **_envp, void (*_cleanup)(void));
#ifdef MCRT0
#include <sys/gmon.h>
extern unsigned char _etext, _eprol;
#endif /* MCRT0 */
#ifdef RCRT0
#ifdef MD_RCRT0_START
MD_RCRT0_START;
#endif
#else
#ifdef MD_CRT0_START
MD_CRT0_START;
#endif
#endif
extern __dso_hidden initarray_f __preinit_array_start[],
__preinit_array_end[], __init_array_start[], __init_array_end[];
extern char __csu_do_fini_array __dso_hidden;
static void
___start(MD_START_ARGS)
{
size_t size, i;
char ***environp;
#ifdef MD_START_SETUP
MD_START_SETUP
#endif
environp = _csu_finish(argv, envp, cleanup);
#ifndef RCRT0
if (cleanup == NULL) {
#endif
size = __preinit_array_end - __preinit_array_start;
for (i = 0; i < size; i++)
__preinit_array_start[i](argc, argv, envp, NULL);
RCRT0_RELRO();
size = __init_array_end - __init_array_start;
for (i = 0; i < size; i++)
__init_array_start[i](argc, argv, envp, NULL);
__csu_do_fini_array = 1;
#ifndef RCRT0
}
#endif
#ifdef MCRT0
atexit(_mcleanup);
_monstartup((u_long)&_eprol, (u_long)&_etext);
#endif
__init();
exit(main(argc, argv, *environp));
}
#ifdef MCRT0
MD_EPROL_LABEL;
#endif
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