freebsd-nq/contrib/gcc/config/i386/netware-crt0.c
2007-05-19 01:19:51 +00:00

81 lines
2.5 KiB
C

/* Startup routines for NetWare.
Contributed by Jan Beulich (jbeulich@novell.com)
Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#include <stddef.h>
#include <stdint.h>
#include "unwind-dw2-fde.h"
int __init_environment (void *);
int __deinit_environment (void *);
#define SECTION_DECL(name, decl) decl __attribute__((__section__(name)))
SECTION_DECL(".ctors", void(*const __CTOR_LIST__)(void))
= (void(*)(void))(intptr_t)-1;
SECTION_DECL(".ctors$_", void(*const __CTOR_END__)(void)) = NULL;
SECTION_DECL(".dtors", void(*const __DTOR_LIST__)(void))
= (void(*)(void))(intptr_t)-1;
SECTION_DECL(".dtors$_", void(*const __DTOR_END__)(void)) = NULL;
/* No need to use the __[de]register_frame_info_bases functions since
for us the bases are NULL always anyway. */
void __register_frame_info (const void *, struct object *)
__attribute__((__weak__));
void *__deregister_frame_info (const void *) __attribute__((__weak__));
SECTION_DECL(".eh_frame", /*const*/ uint32_t __EH_FRAME_BEGIN__[]) = { };
SECTION_DECL(".eh_frame$_", /*const*/ uint32_t __EH_FRAME_END__[]) = {0};
int
__init_environment (void *unused __attribute__((__unused__)))
{
void (* const * pctor)(void);
static struct object object;
if (__register_frame_info)
__register_frame_info (__EH_FRAME_BEGIN__, &object);
for (pctor = &__CTOR_END__ - 1; pctor > &__CTOR_LIST__; --pctor)
if (*pctor != NULL)
(*pctor)();
return 0;
}
int
__deinit_environment (void *unused __attribute__((__unused__)))
{
/* This should be static to prevent calling the same destructor
twice (just in case where we get here multiple times). */
static void (* const * pdtor)(void) = &__DTOR_LIST__ + 1;
while (pdtor < &__DTOR_END__)
if (*pdtor++ != NULL)
pdtor[-1] ();
if (__deregister_frame_info)
__deregister_frame_info(__EH_FRAME_BEGIN__);
return 0;
}