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.init/.fini support.

This commit is contained in:
tsubai 2001-07-23 20:43:31 +00:00
parent 585f21f3fe
commit 1278735b51
2 changed files with 78 additions and 1 deletions
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4
lib/csu/sh3_elf/Makefile
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# $NetBSD: Makefile,v 1.1 1999/10/07 11:56:29 msaitoh Exp $
# $NetBSD: Makefile,v 1.2 2001/07/23 20:43:31 tsubai Exp $
CPPFLAGS+= -I- -I${.CURDIR}
.include "${.CURDIR}/../common_elf/Makefile.inc"

75
lib/csu/sh3_elf/dot_init.h Normal file
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/* $NetBSD: dot_init.h,v 1.1 2001/07/23 20:43:31 tsubai Exp $ */
/*-
* Copyright (c) 2001 Ross Harvey
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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/cdefs.h> /* RCS ID & Copyright macro defns */
/*
* These must be extern to avoid warnings ("declared static but never defined")
* However, only the declaration is extern, the actually __asm() defines them
* as static.
*/
#define INIT_FALLTHRU_DECL void init_fallthru(void)
#define FINI_FALLTHRU_DECL void fini_fallthru(void)
#define INIT_FALLTHRU() init_fallthru()
#define FINI_FALLTHRU() fini_fallthru()
#define MD_SECTION_PROLOGUE(sect, entry_pt) \
__asm ( \
".section "#sect",\"ax\",@progbits \n" \
#entry_pt": \n" \
" sts.l pr, @-r15 \n" \
" .align 2 \n" \
" /* fall thru */ \n" \
".previous")
#define MD_SECTION_EPILOGUE(sect) \
__asm ( \
".section "#sect",\"ax\",@progbits \n" \
" lds.l @r15+, pr \n" \
" rts \n" \
" nop \n" \
".previous")
#ifdef __LEADING_UNDERSCORE
#define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, _init_fallthru)
#define MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, _fini_fallthru)
#else
#define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, init_fallthru)
#define MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, fini_fallthru)
#endif
#define MD_INIT_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.init)
#define MD_FINI_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.fini)