143 lines
5.7 KiB
C
143 lines
5.7 KiB
C
/* $NetBSD: dot_init.h,v 1.4 2003/03/24 14:32:57 scw Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 2001 Ross Harvey
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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/*
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* The SH5 toolchain generates a bogus GOT access in _init() if we use
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* the traditional approach as used by other ports.
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* Work-around this using a totally gross hack for now.
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*/
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#define INIT_FALLTHRU_DECL
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#define FINI_FALLTHRU_DECL
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#define INIT_FALLTHRU() \
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__asm __volatile(" addi r15, -16, r15 \n"\
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" st.q r15, 0, r18 \n"\
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" gettr tr0, r18 \n"\
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" st.q r15, 8, r18 \n"\
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" pt/u init_fallthru, tr0 \n"\
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" gettr tr0, r18 \n"\
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" ori r18, 1, r18 \n"\
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" ptabs/l r18, tr0 \n"\
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" blink tr0, r18 \n"\
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" ld.q r15, 8, r18 \n"\
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" ptabs/u r18, tr0 \n"\
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" ld.q r15, 0, r18 \n"\
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" addi r15, 16, r15")
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#define FINI_FALLTHRU() \
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__asm __volatile(" addi r15, -16, r15 \n"\
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" st.q r15, 0, r18 \n"\
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" gettr tr0, r18 \n"\
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" st.q r15, 8, r18 \n"\
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" pt/u fini_fallthru, tr0 \n"\
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" gettr tr0, r18 \n"\
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" ori r18, 1, r18 \n"\
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" ptabs/l r18, tr0 \n"\
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" blink tr0, r18 \n"\
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" ld.q r15, 8, r18 \n"\
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" ptabs/u r18, tr0 \n"\
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" ld.q r15, 0, r18 \n"\
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" addi r15, 16, r15")
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#define MD_SECTION_PROLOGUE(sect, entry_pt) \
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__asm ( \
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".section "#sect",\"ax\",@progbits \n"\
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".align 5 \n"\
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".type "#entry_pt",@function \n"\
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#entry_pt": \n"\
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" addi r15, -16, r15 \n"\
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" st.q r15, 0, r14 \n"\
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" st.q r15, 8, r18 \n"\
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" add r15, r63, r14 \n"\
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" nop; nop; nop; nop \n"\
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" /* fall thru */ \n"\
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".previous")
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#define MD_SECTION_EPILOGUE(sect) \
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__asm ( \
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".section "#sect",\"ax\",@progbits \n"\
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" ld.q r15, 8, r18 \n"\
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" ld.q r15, 0, r14 \n"\
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" ptabs/l r18, tr0 \n"\
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" addi r15, 16, r15 \n"\
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" blink tr0, r63 \n"\
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".previous")
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#if __GNUC__ < 3
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#define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, _init_fallthru)
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#define MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, _fini_fallthru)
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#else
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#define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, init_fallthru)
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#define MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, fini_fallthru)
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#endif
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#define MD_INIT_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.init)
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#define MD_FINI_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.fini)
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