NetBSD/lib/csu/sh5/dot_init.h

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2003-03-24 17:32:57 +03:00
/* $NetBSD: dot_init.h,v 1.4 2003/03/24 14:32:57 scw Exp $ */
/*
* Copyright 2002 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Steve C. Woodford for Wasabi Systems, Inc.
*
* 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 for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*/
/*-
* 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 */
/*
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* The SH5 toolchain generates a bogus GOT access in _init() if we use
* the traditional approach as used by other ports.
* Work-around this using a totally gross hack for now.
*/
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#define INIT_FALLTHRU_DECL
#define FINI_FALLTHRU_DECL
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#define INIT_FALLTHRU() \
__asm __volatile(" addi r15, -16, r15 \n"\
" st.q r15, 0, r18 \n"\
" gettr tr0, r18 \n"\
" st.q r15, 8, r18 \n"\
" pt/u init_fallthru, tr0 \n"\
" gettr tr0, r18 \n"\
" ori r18, 1, r18 \n"\
" ptabs/l r18, tr0 \n"\
" blink tr0, r18 \n"\
" ld.q r15, 8, r18 \n"\
" ptabs/u r18, tr0 \n"\
" ld.q r15, 0, r18 \n"\
" addi r15, 16, r15")
#define FINI_FALLTHRU() \
__asm __volatile(" addi r15, -16, r15 \n"\
" st.q r15, 0, r18 \n"\
" gettr tr0, r18 \n"\
" st.q r15, 8, r18 \n"\
" pt/u fini_fallthru, tr0 \n"\
" gettr tr0, r18 \n"\
" ori r18, 1, r18 \n"\
" ptabs/l r18, tr0 \n"\
" blink tr0, r18 \n"\
" ld.q r15, 8, r18 \n"\
" ptabs/u r18, tr0 \n"\
" ld.q r15, 0, r18 \n"\
" addi r15, 16, r15")
#define MD_SECTION_PROLOGUE(sect, entry_pt) \
__asm ( \
".section "#sect",\"ax\",@progbits \n"\
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".align 5 \n"\
".type "#entry_pt",@function \n"\
#entry_pt": \n"\
" addi r15, -16, r15 \n"\
" st.q r15, 0, r14 \n"\
" st.q r15, 8, r18 \n"\
" add r15, r63, r14 \n"\
" nop; nop; nop; nop \n"\
" /* fall thru */ \n"\
".previous")
#define MD_SECTION_EPILOGUE(sect) \
__asm ( \
".section "#sect",\"ax\",@progbits \n"\
" ld.q r15, 8, r18 \n"\
" ld.q r15, 0, r14 \n"\
" ptabs/l r18, tr0 \n"\
" addi r15, 16, r15 \n"\
" blink tr0, r63 \n"\
".previous")
#if __GNUC__ < 3
#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)