1 /* $OpenBSD: md_init.h,v 1.1 2004/01/08 14:59:15 drahn Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Ross Harvey 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #define MD_SECT_CALL_FUNC(section, func) \ 37 __asm (".section "#section", \"ax\"\n" \ 38 " bl " #func "\n" \ 39 " .previous") 40 41 #define MD_SECTION_PROLOGUE(sect, entry_pt) \ 42 __asm ( \ 43 ".section "#sect",\"ax\",@progbits \n" \ 44 " .globl " #entry_pt " \n" \ 45 " .type " #entry_pt ",@function \n" \ 46 " .align 4 \n" \ 47 #entry_pt": \n" \ 48 " stwu %r1,-16(%r1) \n" \ 49 " mflr %r0 \n" \ 50 " stw %r0,12(%r1) \n" \ 51 " /* fall thru */ \n" \ 52 " .previous") 53 54 55 #define MD_SECTION_EPILOGUE(sect) \ 56 __asm ( \ 57 ".section "#sect",\"ax\",@progbits \n" \ 58 " lwz %r0,12(%r1) \n" \ 59 " mtlr %r0 \n" \ 60 " addi %r1,%r1,16 \n" \ 61 " blr \n" \ 62 " .previous") 63