| 1 | /*␊ |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * This file contains Original Code and/or Modifications of Original Code␊ |
| 7 | * as defined in and that are subject to the Apple Public Source License␊ |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
| 9 | * compliance with the License. The rights granted to you under the License␊ |
| 10 | * may not be used to create, or enable the creation or redistribution of,␊ |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to␊ |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any␊ |
| 13 | * terms of an Apple operating system software license agreement.␊ |
| 14 | * ␊ |
| 15 | * Please obtain a copy of the License at␊ |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file.␊ |
| 17 | * ␊ |
| 18 | * The Original Code and all software distributed under the License are␊ |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
| 23 | * Please see the License for the specific language governing rights and␊ |
| 24 | * limitations under the License.␊ |
| 25 | * ␊ |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@␊ |
| 27 | */␊ |
| 28 | /*␊ |
| 29 | * @OSF_COPYRIGHT@␊ |
| 30 | */␊ |
| 31 | /* ␊ |
| 32 | * Mach Operating System␊ |
| 33 | * Copyright (c) 1991,1990,1989 Carnegie Mellon University␊ |
| 34 | * All Rights Reserved.␊ |
| 35 | * ␊ |
| 36 | * Permission to use, copy, modify and distribute this software and its␊ |
| 37 | * documentation is hereby granted, provided that both the copyright␊ |
| 38 | * notice and this permission notice appear in all copies of the␊ |
| 39 | * software, derivative works or modified versions, and any portions␊ |
| 40 | * thereof, and that both notices appear in supporting documentation.␊ |
| 41 | * ␊ |
| 42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"␊ |
| 43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR␊ |
| 44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.␊ |
| 45 | * ␊ |
| 46 | * Carnegie Mellon requests users of this software to return to␊ |
| 47 | * ␊ |
| 48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU␊ |
| 49 | * School of Computer Science␊ |
| 50 | * Carnegie Mellon University␊ |
| 51 | * Pittsburgh PA 15213-3890␊ |
| 52 | * ␊ |
| 53 | * any improvements or extensions that they make and grant Carnegie Mellon␊ |
| 54 | * the rights to redistribute these changes.␊ |
| 55 | */␊ |
| 56 | ␊ |
| 57 | #ifndef␉_I386_ASM_H_␊ |
| 58 | #define␉_I386_ASM_H_␊ |
| 59 | ␊ |
| 60 | #ifdef _KERNEL␊ |
| 61 | #include <gprof.h>␊ |
| 62 | #endif␉/* _KERNEL */␊ |
| 63 | ␊ |
| 64 | #ifdef MACH_KERNEL␊ |
| 65 | #include <mach_kdb.h>␊ |
| 66 | #else␉/* !MACH_KERNEL */␊ |
| 67 | #define␉MACH_KDB 0␊ |
| 68 | #endif␉/* !MACH_KERNEL */␊ |
| 69 | ␊ |
| 70 | ␊ |
| 71 | #if␉defined(MACH_KERNEL) || defined(_KERNEL)␊ |
| 72 | #include <gprof.h>␊ |
| 73 | #endif␉/* MACH_KERNEL || _KERNEL */␊ |
| 74 | ␊ |
| 75 | #if defined(__i386__)␊ |
| 76 | ␊ |
| 77 | #define S_PC␉ (%esp)␊ |
| 78 | #define S_ARG0␉ 4(%esp)␊ |
| 79 | #define S_ARG1␉ 8(%esp)␊ |
| 80 | #define S_ARG2␉12(%esp)␊ |
| 81 | #define S_ARG3␉16(%esp)␊ |
| 82 | #define S_ARG4␉20(%esp)␊ |
| 83 | ␊ |
| 84 | #define FRAME␉pushl %ebp; movl %esp, %ebp␊ |
| 85 | #define EMARF␉leave␊ |
| 86 | ␊ |
| 87 | #define B_LINK␉ (%ebp)␊ |
| 88 | #define B_PC␉ 4(%ebp)␊ |
| 89 | #define B_ARG0␉ 8(%ebp)␊ |
| 90 | #define B_ARG1␉12(%ebp)␊ |
| 91 | #define B_ARG2␉16(%ebp)␊ |
| 92 | #define B_ARG3␉20(%ebp)␊ |
| 93 | ␊ |
| 94 | #elif defined(__x86_64__)␊ |
| 95 | ␊ |
| 96 | #define S_PC␉ (%rsp)␊ |
| 97 | ␊ |
| 98 | #define FRAME␉pushq %rbp; movq %rsp, %rbp␊ |
| 99 | #define EMARF␉leave␊ |
| 100 | ␊ |
| 101 | #define B_LINK␉ (%rbp)␊ |
| 102 | #define B_PC␉ 8(%rbp)␊ |
| 103 | ␊ |
| 104 | #else␊ |
| 105 | #error unsupported architecture␊ |
| 106 | #endif␊ |
| 107 | ␊ |
| 108 | /* There is another definition of ALIGN for .c sources */␊ |
| 109 | #ifdef ASSEMBLER␊ |
| 110 | #define ALIGN 4,0x90␊ |
| 111 | #endif /* ASSEMBLER */␊ |
| 112 | ␊ |
| 113 | #ifndef FALIGN␊ |
| 114 | #define FALIGN ALIGN␊ |
| 115 | #endif␊ |
| 116 | ␊ |
| 117 | #define LB(x,n) n␊ |
| 118 | #if␉__STDC__␊ |
| 119 | #ifndef __NO_UNDERSCORES__␊ |
| 120 | #define␉LCL(x)␉L ## x␊ |
| 121 | #define EXT(x) _ ## x␊ |
| 122 | #define LEXT(x) _ ## x ## :␊ |
| 123 | #else␊ |
| 124 | #define␉LCL(x)␉.L ## x␊ |
| 125 | #define EXT(x) x␊ |
| 126 | #define LEXT(x) x ## :␊ |
| 127 | #endif␊ |
| 128 | #define LBc(x,n) n ## :␊ |
| 129 | #define LBb(x,n) n ## b␊ |
| 130 | #define LBf(x,n) n ## f␊ |
| 131 | #else /* __STDC__ */␊ |
| 132 | #ifndef __NO_UNDERSCORES__␊ |
| 133 | #define LCL(x) L/**/x␊ |
| 134 | #define EXT(x) _/**/x␊ |
| 135 | #define LEXT(x) _/**/x/**/:␊ |
| 136 | #else /* __NO_UNDERSCORES__ */␊ |
| 137 | #define␉LCL(x)␉.L/**/x␊ |
| 138 | #define EXT(x) x␊ |
| 139 | #define LEXT(x) x/**/:␊ |
| 140 | #endif /* __NO_UNDERSCORES__ */␊ |
| 141 | #define LBc(x,n) n/**/:␊ |
| 142 | #define LBb(x,n) n/**/b␊ |
| 143 | #define LBf(x,n) n/**/f␊ |
| 144 | #endif /* __STDC__ */␊ |
| 145 | ␊ |
| 146 | #define SVC .byte 0x9a; .long 0; .word 0x7␊ |
| 147 | ␊ |
| 148 | #define RPC_SVC .byte 0x9a; .long 0; .word 0xf␊ |
| 149 | ␊ |
| 150 | #define String␉.asciz␊ |
| 151 | #define Value␉.word␊ |
| 152 | #define Times(a,b) (a*b)␊ |
| 153 | #define Divide(a,b) (a/b)␊ |
| 154 | ␊ |
| 155 | #define INB␉inb␉%dx, %al␊ |
| 156 | #define OUTB␉outb␉%al, %dx␊ |
| 157 | #define INL␉inl␉%dx, %eax␊ |
| 158 | #define OUTL␉outl␉%eax, %dx␊ |
| 159 | ␊ |
| 160 | #define data16␉.byte 0x66␊ |
| 161 | #define addr16␉.byte 0x67␊ |
| 162 | ␊ |
| 163 | #if !GPROF␊ |
| 164 | #define MCOUNT␊ |
| 165 | ␊ |
| 166 | #elif defined(__SHARED__)␊ |
| 167 | #define MCOUNT␉␉; .data;\␊ |
| 168 | ␉␉␉.align ALIGN;\␊ |
| 169 | ␉␉␉LBc(x, 8) .long 0;\␊ |
| 170 | ␉␉␉.text;\␊ |
| 171 | ␉␉␉Gpush;\␊ |
| 172 | ␉␉␉Gload;\␊ |
| 173 | ␉␉␉leal Gotoff(LBb(x,8)),%edx;\␊ |
| 174 | ␉␉␉Egaddr(%eax,_mcount_ptr);\␊ |
| 175 | ␉␉␉Gpop;\␊ |
| 176 | ␉␉␉call *(%eax);␊ |
| 177 | ␊ |
| 178 | #else␉/* !GPROF, !__SHARED__ */␊ |
| 179 | #define MCOUNT␉␉; call mcount;␊ |
| 180 | #endif /* GPROF */␊ |
| 181 | ␊ |
| 182 | #ifdef __ELF__␊ |
| 183 | #define ELF_FUNC(x)␉.type x,@function␊ |
| 184 | #define ELF_DATA(x)␉.type x,@object␊ |
| 185 | #define ELF_SIZE(x,s)␉.size x,s␊ |
| 186 | #else␊ |
| 187 | #define ELF_FUNC(x)␊ |
| 188 | #define ELF_DATA(x)␊ |
| 189 | #define ELF_SIZE(x,s)␊ |
| 190 | #endif␊ |
| 191 | ␊ |
| 192 | #define␉Entry(x)␉.globl EXT(x); ELF_FUNC(EXT(x)); .align FALIGN; LEXT(x)␊ |
| 193 | #define␉ENTRY(x)␉Entry(x) MCOUNT␊ |
| 194 | #define␉ENTRY2(x,y)␉.globl EXT(x); .globl EXT(y); \␊ |
| 195 | ␉␉␉ELF_FUNC(EXT(x)); ELF_FUNC(EXT(y)); \␊ |
| 196 | ␉␉␉.align FALIGN; LEXT(x); LEXT(y) \␊ |
| 197 | ␉␉␉MCOUNT␊ |
| 198 | #if __STDC__␊ |
| 199 | #define␉ASENTRY(x) ␉.globl x; .align FALIGN; x ## : ELF_FUNC(x) MCOUNT␊ |
| 200 | #else␊ |
| 201 | #define␉ASENTRY(x) ␉.globl x; .align FALIGN; x: ELF_FUNC(x) MCOUNT␊ |
| 202 | #endif /* __STDC__ */␊ |
| 203 | ␊ |
| 204 | #define␉DATA(x)␉␉.globl EXT(x); ELF_DATA(EXT(x)); .align ALIGN; LEXT(x)␊ |
| 205 | ␊ |
| 206 | #define End(x)␉␉ELF_SIZE(x,.-x)␊ |
| 207 | #define END(x)␉␉End(EXT(x))␊ |
| 208 | #define ENDDATA(x)␉END(x)␊ |
| 209 | #define Enddata(x)␉End(x)␊ |
| 210 | ␊ |
| 211 | /*␊ |
| 212 | * ELF shared library accessor macros.␊ |
| 213 | * Gpush saves the %ebx register used for the GOT address␊ |
| 214 | * Gpop pops %ebx if we need a GOT␊ |
| 215 | * Gload loads %ebx with the GOT address if shared libraries are used␊ |
| 216 | * Gcall calls an external function.␊ |
| 217 | * Gotoff allows you to reference local labels.␊ |
| 218 | * Gotoff2 allows you to reference local labels with an index reg.␊ |
| 219 | * Gotoff3 allows you to reference local labels with an index reg & size.␊ |
| 220 | * Gaddr loads up a register with an address of an external item.␊ |
| 221 | * Gstack is the number of bytes that Gpush pushes on the stack.␊ |
| 222 | *␊ |
| 223 | * Varients of the above with E or L prefixes do EXT(name) or LCL(name)␊ |
| 224 | * respectively.␊ |
| 225 | */␊ |
| 226 | ␊ |
| 227 | #ifndef __SHARED__␊ |
| 228 | #define Gpush␊ |
| 229 | #define Gpop␊ |
| 230 | #define Gload␊ |
| 231 | #define Gcall(func)␉␉call func␊ |
| 232 | #define Gotoff(lab)␉␉lab␊ |
| 233 | #define Gotoff2(l,r)␉␉l(r)␊ |
| 234 | #define Gotoff3(l,r,s)␉␉l(,r,s)␊ |
| 235 | #define Gaddr(to,lab)␉␉movl $lab,to␊ |
| 236 | #define Gcmp(lab,reg)␉␉cmpl $lab,reg␊ |
| 237 | #define Gmemload(lab,reg)␉movl lab,reg␊ |
| 238 | #define Gmemstore(reg,lab,tmp)␉movl reg,lab␊ |
| 239 | #define Gstack␉␉␉0␊ |
| 240 | ␊ |
| 241 | #else␊ |
| 242 | #ifdef __ELF__␉␉␉/* ELF shared libraries */␊ |
| 243 | #define Gpush␉␉␉pushl %ebx␊ |
| 244 | #define Gpop␉␉␉popl %ebx␊ |
| 245 | #define Gload␉␉␉call 9f; 9: popl %ebx; addl $_GLOBAL_OFFSET_TABLE_+[.-9b],%ebx␊ |
| 246 | #define Gcall(func)␉␉call EXT(func)@PLT␊ |
| 247 | #define Gotoff(lab)␉␉lab@GOTOFF(%ebx)␊ |
| 248 | #define Gotoff2(l,r)␉␉l@GOTOFF(%ebx,r)␊ |
| 249 | #define Gotoff3(l,r,s)␉␉l@GOTOFF(%ebx,r,s)␊ |
| 250 | #define Gaddr(to,lab)␉␉movl lab@GOT(%ebx),to␊ |
| 251 | #define Gcmp(lab,reg)␉␉cmpl reg,lab@GOT(%ebx)␊ |
| 252 | #define Gmemload(lab,reg)␉movl lab@GOT(%ebx),reg; movl (reg),reg␊ |
| 253 | #define Gmemstore(reg,lab,tmp)␉movl lab@GOT(%ebx),tmp; movl reg,(tmp)␊ |
| 254 | #define Gstack␉␉␉4␊ |
| 255 | ␊ |
| 256 | #else␉␉␉␉/* ROSE shared libraries */␊ |
| 257 | #define Gpush␊ |
| 258 | #define Gpop␊ |
| 259 | #define Gload␊ |
| 260 | #define Gcall(func)␉␉call *9f; .data; .align ALIGN; 9: .long func; .text␊ |
| 261 | #define Gotoff(lab)␉␉lab␊ |
| 262 | #define Gotoff2(l,r)␉␉l(r)␊ |
| 263 | #define Gotoff3(l,r,s)␉␉l(,r,s)␊ |
| 264 | #define Gaddr(to,lab)␉␉movl 9f,to; .data; .align ALIGN; 9: .long lab; .text␊ |
| 265 | #define Gcmp(lab,reg)␉␉cmpl reg,9f; .data; .align ALIGN; 9: .long lab; .text␊ |
| 266 | #define Gmemload(lab,reg)␉movl 9f,reg; movl (reg),reg; .data; .align ALIGN; 9: .long lab; .text␊ |
| 267 | #define Gmemstore(reg,lab,tmp)␉movl 9f,tmp; movl reg,(tmp); .data; .align ALIGN; 9: .long lab; .text␊ |
| 268 | #define Gstack␉␉␉0␊ |
| 269 | #endif␉/* __ELF__ */␊ |
| 270 | #endif␉/* __SHARED__ */␊ |
| 271 | ␊ |
| 272 | /* Egotoff is not provided, since external symbols should not use @GOTOFF␊ |
| 273 | relocations. */␊ |
| 274 | #define Egcall(func)␉␉Gcall(EXT(func))␊ |
| 275 | #define Egaddr(to,lab)␉␉Gaddr(to,EXT(lab))␊ |
| 276 | #define Egcmp(lab,reg)␉␉Gcmp(EXT(lab),reg)␊ |
| 277 | #define Egmemload(lab,reg)␉Gmemload(EXT(lab),reg)␊ |
| 278 | #define Egmemstore(reg,lab,tmp)␉Gmemstore(reg,EXT(lab),tmp)␊ |
| 279 | ␊ |
| 280 | #define Lgotoff(lab)␉␉Gotoff(LCL(lab))␊ |
| 281 | #define Lgotoff2(l,r)␉␉Gotoff2(LCL(l),r)␊ |
| 282 | #define Lgotoff3(l,r,s)␉␉Gotoff3(LCL(l),r,s)␊ |
| 283 | #define Lgcmp(lab,reg)␉␉Gcmp(LCL(lab),reg)␊ |
| 284 | #define Lgmemload(lab,reg)␉movl Lgotoff(lab),reg␊ |
| 285 | #define Lgmemstore(reg,lab,tmp)␉movl reg,Lgotoff(lab)␊ |
| 286 | ␊ |
| 287 | #ifdef ASSEMBLER␊ |
| 288 | #if␉MACH_KDB␊ |
| 289 | #include <ddb/stab.h>␊ |
| 290 | /*␊ |
| 291 | * This pseudo-assembler line is added so that there will be at least␊ |
| 292 | *␉one N_SO entry in the symbol stable to define the current file name.␊ |
| 293 | */␊ |
| 294 | #endif␉/* MACH_KDB */␊ |
| 295 | ␊ |
| 296 | #else /* NOT ASSEMBLER */␊ |
| 297 | ␊ |
| 298 | /* These defines are here for .c files that wish to reference global symbols␊ |
| 299 | * within __asm__ statements. ␊ |
| 300 | */␊ |
| 301 | #ifndef __NO_UNDERSCORES__␊ |
| 302 | #define CC_SYM_PREFIX "_"␊ |
| 303 | #else␊ |
| 304 | #define CC_SYM_PREFIX ""␊ |
| 305 | #endif /* __NO_UNDERSCORES__ */␊ |
| 306 | #endif /* ASSEMBLER */␊ |
| 307 | ␊ |
| 308 | #endif /* _I386_ASM_H_ */␊ |
| 309 | |
