1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)asm.h 5.5 (Berkeley) 5/7/91 37 * $Id: asm.h,v 1.5 1994/03/12 01:23:21 jtc Exp $ 38 */ 39 40 #ifndef _I386_ASM_H_ 41 #define _I386_ASM_H_ 42 43 #ifdef PIC 44 #define PIC_PROLOGUE \ 45 pushl %ebx; \ 46 call 1f; \ 47 1: \ 48 popl %ebx; \ 49 addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx 50 #define PIC_EPILOGUE \ 51 popl %ebx 52 #define PIC_PLT(x) x@PLT 53 #define PIC_GOT(x) x@GOT(%ebx) 54 #define PIC_GOTOFF(x) x@GOTOFF(%ebx) 55 #else 56 #define PIC_PROLOGUE 57 #define PIC_EPILOGUE 58 #define PIC_PLT(x) x 59 #define PIC_GOT(x) x 60 #define PIC_GOTOFF(x) x 61 #endif 62 63 #ifdef PROF 64 /* 65 * XXX assumes that arguments are not passed in %eax 66 */ 67 # define _BEGIN_ENTRY .data; 1:; .long 0; .text; .align 2 68 # define _END_ENTRY movl $1b,%eax; call PIC_PLT(mcount) 69 #else 70 # define _BEGIN_ENTRY .text; .align 2 71 # define _END_ENTRY 72 #endif 73 74 #ifdef __STDC__ 75 # define _C_FUNC(x) _ ## x 76 #else 77 # define _C_FUNC(x) _/**/x 78 #endif 79 #define _ASM_FUNC(x) x 80 81 #define _ENTRY(x) .globl x; .type x,@function; x: 82 83 #define ENTRY(y) _BEGIN_ENTRY; _ENTRY(_C_FUNC(y)); _END_ENTRY 84 #define TWOENTRY(y,z) _BEGIN_ENTRY; _ENTRY(_C_FUNC(y)); _ENTRY(_C_FUNC(z)); \ 85 _END_ENTRY 86 #define ASENTRY(y) _BEGIN_ENTRY; _ENTRY(_ASM_FUNC(y)); _END_ENTRY 87 88 #define ASMSTR .asciz 89 90 #define RCSID(x) .text; .asciz x 91 92 #endif /* !_I386_ASM_H_ */ 93