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 * $FreeBSD$ 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_REF(name) __CONCAT(.L,name) 93 #define TOC_ENTRY(name) \ 94 .section ".toc","aw"; \ 95 TOC_REF(name): \ 96 .tc name[TC],name 97 #endif 98 99 #ifdef __powerpc64__ 100 101 #if !defined(_CALL_ELF) || _CALL_ELF == 1 102 #define _ENTRY(name) \ 103 .section ".text"; \ 104 .p2align 2; \ 105 .globl name; \ 106 .section ".opd","aw"; \ 107 .p2align 3; \ 108 name: \ 109 .quad DOT_LABEL(name),.TOC.@tocbase,0; \ 110 .previous; \ 111 .p2align 4; \ 112 TYPE_ENTRY(name) \ 113 DOT_LABEL(name): 114 #else 115 #define _ENTRY(name) \ 116 .text; \ 117 .p2align 4; \ 118 .globl name; \ 119 .type name,@function; \ 120 name: \ 121 addis %r2, %r12, (.TOC.-name)@ha; \ 122 addi %r2, %r2, (.TOC.-name)@l; \ 123 .localentry name, .-name; 124 #endif 125 126 #define _END(name) \ 127 .long 0; \ 128 .byte 0,0,0,0,0,0,0,0; \ 129 END_SIZE(name) 130 #else /* !__powerpc64__ */ 131 #define _ENTRY(name) \ 132 .text; \ 133 .p2align 4; \ 134 .globl name; \ 135 .type name,@function; \ 136 name: 137 #define _END(name) 138 #endif /* __powerpc64__ */ 139 140 #if defined(PROF) || (defined(_KERNEL) && defined(GPROF)) 141 # ifdef __powerpc64__ 142 # define _PROF_PROLOGUE mflr 0; \ 143 std 3,48(1); \ 144 std 4,56(1); \ 145 std 5,64(1); \ 146 std 0,16(1); \ 147 stdu 1,-112(1); \ 148 bl _mcount; \ 149 nop; \ 150 ld 0,112+16(1); \ 151 ld 3,112+48(1); \ 152 ld 4,112+56(1); \ 153 ld 5,112+64(1); \ 154 mtlr 0; \ 155 addi 1,1,112 156 # else 157 # define _PROF_PROLOGUE mflr 0; stw 0,4(1); bl _mcount 158 # endif 159 #else 160 # define _PROF_PROLOGUE 161 #endif 162 163 #define ASENTRY(y) _ENTRY(ASMNAME(y)); _PROF_PROLOGUE 164 #define END(y) _END(CNAME(y)) 165 #define ENTRY(y) _ENTRY(CNAME(y)); _PROF_PROLOGUE 166 #define GLOBAL(y) _GLOBAL(CNAME(y)) 167 168 #define ASENTRY_NOPROF(y) _ENTRY(ASMNAME(y)) 169 #define ENTRY_NOPROF(y) _ENTRY(CNAME(y)) 170 171 #define ASMSTR .asciz 172 173 #define RCSID(x) .text; .asciz x 174 175 #undef __FBSDID 176 #if !defined(lint) && !defined(STRIP_FBSDID) 177 #define __FBSDID(s) .ident s 178 #else 179 #define __FBSDID(s) /* nothing */ 180 #endif /* not lint and not STRIP_FBSDID */ 181 182 #define WEAK_REFERENCE(sym, alias) \ 183 .weak alias; \ 184 .equ alias,sym 185 186 #ifdef __STDC__ 187 #define WARN_REFERENCES(_sym,_msg) \ 188 .section .gnu.warning. ## _sym ; .ascii _msg ; .text 189 #else 190 #define WARN_REFERENCES(_sym,_msg) \ 191 .section .gnu.warning./**/_sym ; .ascii _msg ; .text 192 #endif /* __STDC__ */ 193 194 #endif /* !_MACHINE_ASM_H_ */ 195