1/*- 2 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 3 * Copyright (C) 1995, 1996 TooLs GmbH. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by TooLs GmbH. 17 * 4. The name of TooLs GmbH may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $NetBSD: asm.h,v 1.6.18.1 2000/07/25 08:37:14 kleink Exp $ 32 * $FreeBSD: stable/11/sys/powerpc/include/asm.h 316369 2017-04-01 19:27:06Z jhibbits $ 33 */ 34 35#ifndef _MACHINE_ASM_H_ 36#define _MACHINE_ASM_H_ 37 38#include <sys/cdefs.h> 39 40#if defined(PIC) && !defined(__powerpc64__) 41#define PIC_PROLOGUE XXX 42#define PIC_EPILOGUE XXX 43#define PIC_PLT(x) x@plt 44#ifdef __STDC__ 45#define PIC_GOT(x) XXX 46#else /* not __STDC__ */ 47#define PIC_GOT(x) XXX 48#endif /* __STDC__ */ 49#else 50#define PIC_PROLOGUE 51#define PIC_EPILOGUE 52#define PIC_PLT(x) x 53#define PIC_GOT(x) x 54#endif 55 56#define CNAME(csym) csym 57#define ASMNAME(asmsym) asmsym 58#ifdef __powerpc64__ 59#define HIDENAME(asmsym) __CONCAT(_,asmsym) 60#else 61#define HIDENAME(asmsym) __CONCAT(.,asmsym) 62#endif 63 64#if !defined(_CALL_ELF) || _CALL_ELF == 1 65#ifdef _KERNEL 66/* ELFv1 kernel uses global dot symbols */ 67#define DOT_LABEL(name) __CONCAT(.,name) 68#define TYPE_ENTRY(name) .size name,24; \ 69 .type DOT_LABEL(name),@function; \ 70 .globl DOT_LABEL(name); 71#define END_SIZE(name) .size DOT_LABEL(name),.-DOT_LABEL(name); 72#else /* !_KERNEL */ 73/* ELFv1 user code uses local function entry points */ 74#define DOT_LABEL(name) __CONCAT(.L.,name) 75#define TYPE_ENTRY(name) .type name,@function; 76#define END_SIZE(name) .size name,.-DOT_LABEL(name); 77#endif /* _KERNEL */ 78#else 79/* ELFv2 doesn't have any of this complication */ 80#define DOT_LABEL(name) name 81#define TYPE_ENTRY(name) .type name,@function; 82#define END_SIZE(name) .size name,.-DOT_LABEL(name); 83#endif 84 85#define _GLOBAL(name) \ 86 .data; \ 87 .p2align 2; \ 88 .globl name; \ 89 name: 90 91#ifdef __powerpc64__ 92#define TOC_NAME_FOR_REF(name) __CONCAT(.L,name) 93#define TOC_REF(name) TOC_NAME_FOR_REF(name)@toc 94#define TOC_ENTRY(name) \ 95 .section ".toc","aw"; \ 96 TOC_NAME_FOR_REF(name): \ 97 .tc name[TC],name 98#endif 99 100#ifdef __powerpc64__ 101 102#if !defined(_CALL_ELF) || _CALL_ELF == 1 103#define _ENTRY(name) \ 104 .section ".text"; \ 105 .p2align 2; \ 106 .globl name; \ 107 .section ".opd","aw"; \ 108 .p2align 3; \ 109 name: \ 110 .quad DOT_LABEL(name),.TOC.@tocbase,0; \ 111 .previous; \ 112 .p2align 4; \ 113 TYPE_ENTRY(name) \ 114DOT_LABEL(name): 115#else 116#define _ENTRY(name) \ 117 .text; \ 118 .p2align 4; \ 119 .globl name; \ 120 .type name,@function; \ 121name: \ 122 addis %r2, %r12, (.TOC.-name)@ha; \ 123 addi %r2, %r2, (.TOC.-name)@l; \ 124 .localentry name, .-name; 125#endif 126 127#define _END(name) \ 128 .long 0; \ 129 .byte 0,0,0,0,0,0,0,0; \ 130 END_SIZE(name) 131#else /* !__powerpc64__ */ 132#define _ENTRY(name) \ 133 .text; \ 134 .p2align 4; \ 135 .globl name; \ 136 .type name,@function; \ 137 name: 138#define _END(name) 139#endif /* __powerpc64__ */ 140 141#if defined(PROF) || (defined(_KERNEL) && defined(GPROF)) 142# ifdef __powerpc64__ 143# define _PROF_PROLOGUE mflr 0; \ 144 std 3,48(1); \ 145 std 4,56(1); \ 146 std 5,64(1); \ 147 std 0,16(1); \ 148 stdu 1,-112(1); \ 149 bl _mcount; \ 150 nop; \ 151 ld 0,112+16(1); \ 152 ld 3,112+48(1); \ 153 ld 4,112+56(1); \ 154 ld 5,112+64(1); \ 155 mtlr 0; \ 156 addi 1,1,112 157# else 158# define _PROF_PROLOGUE mflr 0; stw 0,4(1); bl _mcount 159# endif 160#else 161# define _PROF_PROLOGUE 162#endif 163 164#define ASENTRY(y) _ENTRY(ASMNAME(y)); _PROF_PROLOGUE 165#define END(y) _END(CNAME(y)) 166#define ENTRY(y) _ENTRY(CNAME(y)); _PROF_PROLOGUE 167#define GLOBAL(y) _GLOBAL(CNAME(y)) 168 169#define ASENTRY_NOPROF(y) _ENTRY(ASMNAME(y)) 170#define ENTRY_NOPROF(y) _ENTRY(CNAME(y)) 171 172#define ASMSTR .asciz 173 174#define RCSID(x) .text; .asciz x 175 176#undef __FBSDID 177#if !defined(lint) && !defined(STRIP_FBSDID) 178#define __FBSDID(s) .ident s 179#else 180#define __FBSDID(s) /* nothing */ 181#endif /* not lint and not STRIP_FBSDID */ 182 183#define WEAK_REFERENCE(sym, alias) \ 184 .weak alias; \ 185 .equ alias,sym 186 187#ifdef __STDC__ 188#define WARN_REFERENCES(_sym,_msg) \ 189 .section .gnu.warning. ## _sym ; .ascii _msg ; .text 190#else 191#define WARN_REFERENCES(_sym,_msg) \ 192 .section .gnu.warning./**/_sym ; .ascii _msg ; .text 193#endif /* __STDC__ */ 194 195#endif /* !_MACHINE_ASM_H_ */ 196