| 1 | /*␊ |
| 2 | * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_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. Please obtain a copy of the License at␊ |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this␊ |
| 11 | * file.␊ |
| 12 | * ␊ |
| 13 | * The Original Code and all software distributed under the License are␊ |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
| 18 | * Please see the License for the specific language governing rights and␊ |
| 19 | * limitations under the License.␊ |
| 20 | * ␊ |
| 21 | * @APPLE_LICENSE_HEADER_END@␊ |
| 22 | */␊ |
| 23 | /* Copyright (c) 1996 NeXT Software, Inc. All rights reserved.␊ |
| 24 | *␊ |
| 25 | *␉File:␉architecture/ppc/asm_help.h␊ |
| 26 | *␉Author:␉Mike DeMoney, NeXT Software, Inc.␊ |
| 27 | *␊ |
| 28 | *␉This header file defines macros useful when writing assembly code␊ |
| 29 | *␉for the PowerPC processors.␊ |
| 30 | *␉r12 is used as the tmp register / PICIFY base.␊ |
| 31 | *␊ |
| 32 | * HISTORY␊ |
| 33 | * 20-May-97 Umesh Vaishampayan (umeshv@apple.com)␊ |
| 34 | *␉Implemented Dynamic / PIC macros.␊ |
| 35 | *␊ |
| 36 | * 28-Dec-96 Umesh Vaishampayan (umeshv@NeXT.com)␊ |
| 37 | *␉added ".align" directive to various macros to avoid alignment ␊ |
| 38 | * ␉faults. Moved Register Usage #defines to reg_help.h as that's␊ |
| 39 | *␉where they should have been in the first place.␊ |
| 40 | *␉Added Dynamic / PIC macroes for routines which refernce external␊ |
| 41 | *␉symbols. Not implemented fully as yet.␊ |
| 42 | *␊ |
| 43 | * 05-Nov-92 Mike DeMoney (mike@next.com)␊ |
| 44 | *␉Created.␊ |
| 45 | */␊ |
| 46 | ␊ |
| 47 | #ifndef␉_ARCH_PPC_ASM_HELP_H_␊ |
| 48 | #define␉_ARCH_PPC_ASM_HELP_H_␊ |
| 49 | ␊ |
| 50 | #include␉<architecture/ppc/reg_help.h>␊ |
| 51 | ␊ |
| 52 | #ifdef␉__ASSEMBLER__␊ |
| 53 | /*␊ |
| 54 | * ppc stack frames look like this after procedure prolog has␊ |
| 55 | * been executed:␊ |
| 56 | *␊ |
| 57 | * Higher address:␊ |
| 58 | *␉␉␉.........␊ |
| 59 | *␉␉+-------------------------------+␊ |
| 60 | * ␉␉| caller's LR␉␉␉|␊ |
| 61 | *␉␉+-------------------------------+␊ |
| 62 | * ␉␉| caller's CR␉␉␉|␊ |
| 63 | *␉␉+-------------------------------+␊ |
| 64 | * Caller's SP->| caller's caller's sp␉␉| ^^ Caller's Frame ^^␊ |
| 65 | *␉␉+===============================+ vv Called Rtn Frame vv␊ |
| 66 | *␉␉|␉Save Area for␉␉| FPF 31␊ |
| 67 | *␉␉␉..........␊ |
| 68 | *␉␉| ␉Caller's FPF's␉␉| FPF n␊ |
| 69 | *␉␉+-------------------------------+␊ |
| 70 | *␉␉|␉Save Area for␉␉| GRF 31␊ |
| 71 | *␉␉␉..........␊ |
| 72 | *␉␉| ␉Caller's GRF's␉␉| GRF n␊ |
| 73 | *␉␉+-------------------------------+␊ |
| 74 | *␉␉|␉alignment pad␉␉|␊ |
| 75 | *␉␉␉............␊ |
| 76 | *␉␉|␉(if necessary)␉␉|␊ |
| 77 | *␉␉+-------------------------------+␊ |
| 78 | *␉␉|␉Local␉␉␉|␊ |
| 79 | *␉␉␉........␊ |
| 80 | *␉␉| ␉Variables␉␉|␊ |
| 81 | *␉␉+-------------------------------+␊ |
| 82 | * SP + X ->␉| aN for FUTURE call␉␉|␊ |
| 83 | *␉␉+-------------------------------+␊ |
| 84 | *␉␉␉..........␊ |
| 85 | *␉␉+-------------------------------+␊ |
| 86 | * SP + 28 ->␉| a1 for FUTURE call␉␉|␊ |
| 87 | *␉␉+-------------------------------+␊ |
| 88 | * SP + 24 ->␉| a0 for FUTURE call␉␉|␊ |
| 89 | *␉␉+-------------------------------+␊ |
| 90 | * SP + 20 ->␉| caller's TOC␉␉␉|␊ |
| 91 | *␉␉+-------------------------------+␊ |
| 92 | * SP + 16 ->␉| reserved␉␉␉|␊ |
| 93 | *␉␉+-------------------------------+␊ |
| 94 | * SP + 12 ->␉| reserved␉␉␉|␊ |
| 95 | *␉␉+-------------------------------+␊ |
| 96 | * SP + 8 ->␉| LR callee-save for FUTURE call|␊ |
| 97 | *␉␉+-------------------------------+␊ |
| 98 | * SP + 4 ->␉| CR callee-save for FUTURE call|␊ |
| 99 | *␉␉+-------------------------------+␊ |
| 100 | * SP ->␉| caller's sp␉␉␉|␊ |
| 101 | *␉␉+===============================+␊ |
| 102 | * Lower address:␊ |
| 103 | *␊ |
| 104 | * NOTE: All state with the exception of LR and CR are saved in the␊ |
| 105 | * called routines frame. LR and CR are saved in the CALLER'S FRAME.␊ |
| 106 | *␊ |
| 107 | * ALSO NOTE: Args to the called routine are found in the caller's frame.␊ |
| 108 | */␊ |
| 109 | ␊ |
| 110 | /*␊ |
| 111 | * ARG(n) -- stack offset to n'th argument␊ |
| 112 | *␊ |
| 113 | * NOTE CAREFULLY! These macros start numbering arguments at 1 (NOT 0)␊ |
| 114 | * The first argument is ARG(1).␊ |
| 115 | *␊ |
| 116 | * ALSO NOTE: This stack offset is only valid if using routine␊ |
| 117 | * DOES NOT alter SP.␊ |
| 118 | *␊ |
| 119 | */␊ |
| 120 | #define␉ARG(n)␉␉((((n) - 1) * 4) + 24)␊ |
| 121 | ␊ |
| 122 | /*␊ |
| 123 | * Macros for building stack frame according to C calling conventions.␊ |
| 124 | * lr, cr, and sp are saved.␊ |
| 125 | *␊ |
| 126 | * NOTE WELL: localvarsize is in bytes, maxargsout is a count of words,␊ |
| 127 | * grfsaved and fpfsaved is a count of registers. BE SURE TO COUNT␊ |
| 128 | * BOTH FP (r31) AND sN REGISTERS IN THE COUNT OF GRF REGISTERS SAVED!␊ |
| 129 | * This will be TWO more than the N of the highest sN register you␊ |
| 130 | * save: s2 implies you are saving s2, s1, s0, and fp => grfsaved␊ |
| 131 | * should be 4!␊ |
| 132 | *␊ |
| 133 | * FURTHER NOTE: These macros do NOT SAVE GRF or FPF registers. User␊ |
| 134 | * must do that. GRF sN regs should be saved via␊ |
| 135 | *␉stmw␉sN,SAVED_GRF_S(N)(sp)␊ |
| 136 | * where N is the highest numbered s* register to be saved. E.g. if␊ |
| 137 | * s0, s1, and s2 are to be saved use:␊ |
| 138 | *␉stmw␉s2,SAVED_GRF_S(2)(sp)␊ |
| 139 | * Note that this also saves fp.␊ |
| 140 | * An individual saved grf can be loaded via:␊ |
| 141 | *␉lwz␉s2,SAVED_GRF_S(2)(sp)␊ |
| 142 | * Analogous stuff works for fpf's.␊ |
| 143 | *␊ |
| 144 | * NOTE: these simple routines will be replaced with more complicated␊ |
| 145 | * ones once we know what the linker and gdb will require as for as ␊ |
| 146 | * register use masks and frame declarations.␊ |
| 147 | *␊ |
| 148 | * Warning: ROUND_TO_STACK is only to be used in assembly language;␊ |
| 149 | * for C usage, use ROUND_FRAME() in reg_help.h.␊ |
| 150 | */␊ |
| 151 | #define␉ROUND_TO_STACK(len)␉␉␉␉\␊ |
| 152 | ␉(((len) + STACK_INCR - 1) / STACK_INCR * STACK_INCR)␊ |
| 153 | ␊ |
| 154 | #define␉BUILD_FRAME(localvarsize, maxargsout, grfsaved, fpfsaved)␉\␊ |
| 155 | ␉.set␉__argoutsize, ROUND_TO_STACK((maxargsout) * 4)␉␉@\␊ |
| 156 | ␉.if␉__argoutsize < 32␉␉␉␉␉@\␊ |
| 157 | ␉ .set␉__argoutsize,32␉␉␉␉␉␉@\␊ |
| 158 | ␉.endif␉␉␉␉␉␉␉␉@\␊ |
| 159 | ␉.set␉__framesize, ROUND_TO_STACK(␉␉␉␉\␊ |
| 160 | ␉␉␉24 + __argoutsize + (localvarsize)␉␉\␊ |
| 161 | ␉␉␉+ 4*(grfsaved) + 8*(fpfsaved))␉␉␉@\␊ |
| 162 | ␉.set␉__grfbase,(__framesize - 4*(grfsaved) - 8*(fpfsaved))␉@\␊ |
| 163 | ␉.set␉__fpfbase,(__framesize - 8*(fpfsaved))␉␉␉@\␊ |
| 164 | ␉mflr␉r0␉␉␉␉␉␉␉@\␊ |
| 165 | ␉mfcr␉r12␉␉␉␉␉␉␉@\␊ |
| 166 | ␉stw␉r0,8(sp)␉␉␉␉␉␉@\␊ |
| 167 | ␉stw␉r12,4(sp)␉␉␉␉␉␉@\␊ |
| 168 | ␉stwu␉r1,-__framesize(r1)␊ |
| 169 | ␊ |
| 170 | /*␊ |
| 171 | * Macros for referencing data in stack frame.␊ |
| 172 | *␊ |
| 173 | * NOTE WELL: ARG's and VAR's start at 1, NOT 0. Why ??? (FIXME)␊ |
| 174 | */␊ |
| 175 | #define␉LOCAL_VAR(n)␉(((n)-1)*4 + __argoutsize + 24)␊ |
| 176 | #define␉SAVED_GRF_S(n)␉(__grfbase + ((grfsaved) - (n) - 2) * 4)␊ |
| 177 | #define␉SAVED_FRF_FS(n)␉(__fpfbase + ((fpfsaved) - (n) - 1) * 4)␊ |
| 178 | #define␉ARG_IN(n)␉(ARG(n) + __framesize)␊ |
| 179 | #define␉ARG_OUT(n)␉(ARG(n) + 0)␊ |
| 180 | #define␉SAVED_FP␉(__grfbase + ((grfsaved) - 1) * 4)␊ |
| 181 | #define␉SAVED_LR␉(__framesize + 8)␊ |
| 182 | #define␉SAVED_CR␉(__framesize + 4)␊ |
| 183 | ␊ |
| 184 | /*␊ |
| 185 | * Macros for unwinding stack frame.␊ |
| 186 | * NOTE: GRF's and FPF's are NOT RESTORED. User must do this before␊ |
| 187 | * using this macro.␊ |
| 188 | */␊ |
| 189 | #define␉RETURN␉␉␉␉␉␉\␊ |
| 190 | ␉.if␉__framesize␉␉␉␉@\␊ |
| 191 | ␉ lwz32␉r0,r1,SAVED_LR␉␉␉␉@\␊ |
| 192 | ␉ lwz32␉r12,r1,SAVED_CR␉␉␉␉@\␊ |
| 193 | ␉ addic␉sp,r1,__framesize␉␉␉@\␊ |
| 194 | ␉ mtlr␉r0␉␉␉␉␉@\␊ |
| 195 | ␉ mtcrf␉0xff,r12␉␉␉␉@\␊ |
| 196 | ␉ blr␉␉␉␉␉␉@\␊ |
| 197 | ␉.else␉␉␉␉␉␉@\␊ |
| 198 | ␉ blr␉␉␉␉␉␉@\␊ |
| 199 | ␉.endif␊ |
| 200 | ␊ |
| 201 | ␊ |
| 202 | /*␊ |
| 203 | * Macros for declaring procedures␊ |
| 204 | *␊ |
| 205 | * Use of these macros allows ctags to have a predictable way␊ |
| 206 | * to find various types of declarations. They also simplify␊ |
| 207 | * inserting appropriate symbol table information.␊ |
| 208 | *␊ |
| 209 | * NOTE: these simple stubs will be replaced with more␊ |
| 210 | * complicated versions once we know what the linker and gdb␊ |
| 211 | * will require as far as register use masks and frame declarations.␊ |
| 212 | * These macros may also be ifdef'ed in the future to contain profiling␊ |
| 213 | * code.␊ |
| 214 | *␊ |
| 215 | * FIXME: Document what makes a leaf a LEAF and a handler a HANDLER.␊ |
| 216 | * (E.g. leaf's have return pc in lr, NESTED's have rpc in offset off␊ |
| 217 | * sp, handlers have rpc in exception frame which is found via exception␊ |
| 218 | * link, etc etc.)␊ |
| 219 | */␊ |
| 220 | ␊ |
| 221 | /*␊ |
| 222 | * TEXT -- declare start of text segment␊ |
| 223 | */␊ |
| 224 | #define␉TEXT␉␉␉␉␉␉\␊ |
| 225 | ␉.text␉␉␉␉␉␉@\␊ |
| 226 | ␉.align 2␊ |
| 227 | ␊ |
| 228 | /*␊ |
| 229 | * LEAF -- declare global leaf procedure␊ |
| 230 | * NOTE: Control SHOULD NOT FLOW into a LEAF! A LEAF should only␊ |
| 231 | * be jumped to. (A leaf may do an align.) Use a LABEL() if you␊ |
| 232 | * need control to flow into the label.␊ |
| 233 | */␊ |
| 234 | #define␉LEAF(name)␉␉␉␉␉\␊ |
| 235 | ␉.align 2␉␉␉␉␉@\␊ |
| 236 | ␉.globl␉name␉␉␉␉␉@\␊ |
| 237 | name:␉␉␉␉␉␉␉@\␊ |
| 238 | ␉.set␉__framesize,0␊ |
| 239 | ␊ |
| 240 | /*␊ |
| 241 | * X_LEAF -- declare alternate global label for leaf␊ |
| 242 | */␊ |
| 243 | #define␉X_LEAF(name, value)␉␉␉␉\␊ |
| 244 | ␉.globl␉name␉␉␉␉␉@\␊ |
| 245 | ␉.set␉name,value␊ |
| 246 | ␊ |
| 247 | /*␊ |
| 248 | * P_LEAF -- declare private leaf procedure␊ |
| 249 | */␊ |
| 250 | #define␉P_LEAF(name)␉␉␉␉␉\␊ |
| 251 | ␉.align 2␉␉␉␉␉@\␊ |
| 252 | name:␉␉␉␉␉␉␉@\␊ |
| 253 | ␉.set␉__framesize,0␊ |
| 254 | ␊ |
| 255 | /*␊ |
| 256 | * LABEL -- declare a global code label␊ |
| 257 | * MUST be used (rather than LEAF, NESTED, etc) if control␊ |
| 258 | * "flows into" the label.␊ |
| 259 | */␊ |
| 260 | #define␉LABEL(name)␉␉␉␉␉\␊ |
| 261 | ␉.align 2␉␉␉␉␉@\␊ |
| 262 | ␉.globl␉name␉␉␉␉␉@\␊ |
| 263 | name:␊ |
| 264 | ␊ |
| 265 | /*␊ |
| 266 | * NESTED -- declare procedure that invokes other procedures␊ |
| 267 | */␊ |
| 268 | #define␉NESTED(name, localvarsize, maxargsout, grfsaved, fpfsaved)\␊ |
| 269 | ␉.align 2␉␉␉␉@\␊ |
| 270 | ␉.globl␉name␉␉␉␉@\␊ |
| 271 | name:␉␉␉␉␉␉@\␊ |
| 272 | ␉BUILD_FRAME(localvarsize, maxargsout, grfsaved, fpfsaved)␊ |
| 273 | ␊ |
| 274 | /*␊ |
| 275 | * X_NESTED -- declare alternate global label for nested proc␊ |
| 276 | */␊ |
| 277 | #define␉X_NESTED(name, value)␉␉␉\␊ |
| 278 | ␉.globl␉name␉␉␉␉@\␊ |
| 279 | ␉.set␉name,value␊ |
| 280 | ␊ |
| 281 | /*␊ |
| 282 | * P_NESTED -- declare private nested procedure␊ |
| 283 | */␊ |
| 284 | #define␉P_NESTED(name, localvarsize, maxargsout, grfsaved, fpfsaved)\␊ |
| 285 | ␉.align 2␉␉␉␉␉@\␊ |
| 286 | name:␉␉␉␉␉␉␉@\␊ |
| 287 | ␉BUILD_FRAME(locavarsize, maxargsout, grfsaved, fpfsaved)␊ |
| 288 | ␊ |
| 289 | /*␊ |
| 290 | * HANDLER -- declare procedure with exception frame rather than␊ |
| 291 | * standard C frame␊ |
| 292 | */␊ |
| 293 | #define␉HANDLER(name)␉␉␉␉␉\␊ |
| 294 | ␉.align 2␉␉␉␉␉@\␊ |
| 295 | ␉.globl␉name␉␉␉␉␉@\␊ |
| 296 | name:␊ |
| 297 | ␊ |
| 298 | /*␊ |
| 299 | * X_HANDLER -- declare alternate name for exception handler␊ |
| 300 | * (Should appear immediately before a HANDLER declaration or␊ |
| 301 | * another X_HANDLER declaration)␊ |
| 302 | */␊ |
| 303 | #define␉X_HANDLER(name)␉␉␉␉␉\␊ |
| 304 | ␉.align 2␉␉␉␉␉@\␊ |
| 305 | ␉.globl␉name␉␉␉␉␉@\␊ |
| 306 | name:␊ |
| 307 | ␊ |
| 308 | /*␊ |
| 309 | * P_HANDLER -- declare private handler␊ |
| 310 | */␊ |
| 311 | #define␉P_HANDLER(name)␉␉␉␉␉\␊ |
| 312 | ␉.align 2␉␉␉␉@\␊ |
| 313 | name:␊ |
| 314 | ␊ |
| 315 | /*␊ |
| 316 | * END -- mark end of procedure␊ |
| 317 | * FIXME: Unimplemented for now.␊ |
| 318 | */␊ |
| 319 | #define␉END(name)␊ |
| 320 | ␊ |
| 321 | /*␊ |
| 322 | * BL -- call procedure (relative)␊ |
| 323 | */␊ |
| 324 | #define␉BL(name)␉␉␉␉␉\␊ |
| 325 | ␉bl␉name␊ |
| 326 | ␊ |
| 327 | /*␊ |
| 328 | * Storage definition macros␊ |
| 329 | * The main purpose of these is to allow an easy handle for ctags␊ |
| 330 | */␊ |
| 331 | ␊ |
| 332 | /*␊ |
| 333 | * IMPORT -- import symbol␊ |
| 334 | */␊ |
| 335 | #define␉IMPORT(name)␉␉␉␉␉\␊ |
| 336 | ␉.reference␉name␊ |
| 337 | ␊ |
| 338 | /*␊ |
| 339 | * ABS -- declare global absolute symbol␊ |
| 340 | */␊ |
| 341 | #define␉ABS(name, value)␉␉␉␉\␊ |
| 342 | ␉.globl␉name␉␉␉␉␉@\␊ |
| 343 | ␉.set␉name,value␊ |
| 344 | ␊ |
| 345 | /*␊ |
| 346 | * P_ABS -- declare private absolute symbol␊ |
| 347 | */␊ |
| 348 | #define␉P_ABS(name, value)␉␉␉␉\␊ |
| 349 | ␉.set␉name,value␊ |
| 350 | ␊ |
| 351 | /*␊ |
| 352 | * EXPORT -- declare global label for data␊ |
| 353 | */␊ |
| 354 | #define␉EXPORT(name)␉␉␉␉␉\␊ |
| 355 | ␉.align 2␉␉␉␉␉@\␊ |
| 356 | ␉.globl␉name␉␉␉␉␉@\␊ |
| 357 | name:␊ |
| 358 | ␊ |
| 359 | /*␊ |
| 360 | * BSS -- declare global zero'ed storage␊ |
| 361 | */␊ |
| 362 | #define␉BSS(name,size)␉␉␉␉␉\␊ |
| 363 | ␉.comm␉name,size␊ |
| 364 | ␊ |
| 365 | ␊ |
| 366 | /*␊ |
| 367 | * P_BSS -- declare private zero'ed storage␊ |
| 368 | */␊ |
| 369 | #define␉P_BSS(name,size)␉␉␉␉\␊ |
| 370 | ␉.lcomm␉name,size␊ |
| 371 | ␊ |
| 372 | /*␊ |
| 373 | * dynamic/PIC macros for routines which reference external symbols␊ |
| 374 | */␊ |
| 375 | #if defined(__DYNAMIC__)␊ |
| 376 | #define PICIFY_REG r12␊ |
| 377 | ␊ |
| 378 | /* Assume that the lr is saved before calling any of these macros */␊ |
| 379 | /* using PICIFY() */␊ |
| 380 | ␊ |
| 381 | #define PICIFY(var)␉␉␉␉\␊ |
| 382 | ␉mflr␉r0␉␉␉␉@\␊ |
| 383 | ␉bcl␉20,31,1f␉␉␉@\␊ |
| 384 | 1:␉mflr␉PICIFY_REG␉␉␉@\␊ |
| 385 | ␉mtlr␉r0␉␉␉␉@\␊ |
| 386 | ␉addis␉PICIFY_REG, PICIFY_REG, ha16(L ## var ## __non_lazy_ptr - 1b) @\␊ |
| 387 | ␉lwz␉PICIFY_REG, lo16(L ## var ## __non_lazy_ptr - 1b)(PICIFY_REG)␊ |
| 388 | ␊ |
| 389 | #define CALL_EXTERN_AGAIN(var)␉␉␉\␊ |
| 390 | ␉PICIFY(var)␉␉␉␉@\␊ |
| 391 | ␉mtctr␉PICIFY_REG␉␉␉@\␊ |
| 392 | ␉mflr␉r0␉␉␉␉@\␊ |
| 393 | ␉stw␉r0,8(r1)␉␉␉@\␊ |
| 394 | ␉stwu␉r1,-64(r1)␉␉␉@\␊ |
| 395 | ␉bctrl␉␉␉␉␉@\␊ |
| 396 | ␉addic␉r1,r1,64 ␉␉␉@\␊ |
| 397 | ␉lwz␉r0,8(r1)␉␉␉@\␊ |
| 398 | ␉mtlr␉r0␊ |
| 399 | ␊ |
| 400 | #define NON_LAZY_STUB(var)␉␉␉\␊ |
| 401 | ␉.non_lazy_symbol_pointer␉␉@\␊ |
| 402 | ␉.align 2␉␉␉␉@\␊ |
| 403 | L ## var ## __non_lazy_ptr:␉␉␉@\␊ |
| 404 | ␉.indirect_symbol var␉␉␉@\␊ |
| 405 | ␉.long 0␉␉␉␉␉@\␊ |
| 406 | ␉.text␉␉␉␉␉@\␊ |
| 407 | ␉.align 2␊ |
| 408 | ␊ |
| 409 | #define␉BRANCH_EXTERN(var)␉␉␉\␊ |
| 410 | ␉PICIFY(var)␉␉␉␉@\␊ |
| 411 | ␉mtctr␉PICIFY_REG␉␉␉@\␊ |
| 412 | ␉bctr␉␉␉␉␉@\␊ |
| 413 | ␉NON_LAZY_STUB(var)␊ |
| 414 | ␊ |
| 415 | #define CALL_EXTERN(var)␉␉␉\␊ |
| 416 | ␉CALL_EXTERN_AGAIN(var)␉␉␉@\␊ |
| 417 | ␉NON_LAZY_STUB(var)␊ |
| 418 | ␊ |
| 419 | #define REG_TO_EXTERN(reg, var)␉␉␉\␊ |
| 420 | ␉PICIFY(var)␉␉␉␉@\␊ |
| 421 | ␉stw reg, 0(PICIFY_REG)␉␉␉@\␊ |
| 422 | ␉NON_LAZY_STUB(var)␊ |
| 423 | ␊ |
| 424 | #define EXTERN_TO_REG(reg, var)␉␉␉\␊ |
| 425 | ␉PICIFY(var)␉␉␉␉@\␊ |
| 426 | ␉lwz␉reg, 0(PICIFY_REG)␉␉@\␊ |
| 427 | ␉NON_LAZY_STUB(var)␊ |
| 428 | ␊ |
| 429 | #else /* ! __DYNAMIC__ */␊ |
| 430 | #define TMP_REG r12␊ |
| 431 | #define BRANCH_EXTERN(var)␉␉␉\␊ |
| 432 | ␉b␉var␊ |
| 433 | ␊ |
| 434 | #define CALL_EXTERN(var)␉␉␉\␊ |
| 435 | ␉bl␉var␊ |
| 436 | ␊ |
| 437 | #define CALL_EXTERN_AGAIN(var)␉␉␉\␊ |
| 438 | ␉CALL_EXTERN(var)␊ |
| 439 | ␊ |
| 440 | #define REG_TO_EXTERN(reg, var)␉␉␉\␊ |
| 441 | ␉lis␉TMP_REG, ha16(var)␉␉@\␊ |
| 442 | ␉stw␉reg, lo16(var)(TMP_REG)␊ |
| 443 | ␊ |
| 444 | #define EXTERN_TO_REG(reg, var)␉␉␉\␊ |
| 445 | ␉lis␉reg, ha16(var)␉␉␉@\␊ |
| 446 | ␉lwz␉reg, lo16(var)(reg)␊ |
| 447 | ␊ |
| 448 | #endif␉/* __DYNAMIC__ */␊ |
| 449 | ␊ |
| 450 | #endif␉/* __ASSEMBLER__ */␊ |
| 451 | #endif␉/* _ARCH_PPC_ASM_HELP_H_ */␊ |
| 452 | |
