/* $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 /* RCS ID & Copyright macro defns */ /* * 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. */ #define INIT_FALLTHRU_DECL #define FINI_FALLTHRU_DECL #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"\ ".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)