arch/powerpc/lib/crtsavres.S

/* [<][>][^][v][top][bottom][index][help] */
   1 /*
   2  * Special support for eabi and SVR4
   3  *
   4  *   Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
   5  *   Copyright 2008 Freescale Semiconductor, Inc.
   6  *   Written By Michael Meissner
   7  *
   8  * Based on gcc/config/rs6000/crtsavres.asm from gcc
   9  * 64 bit additions from reading the PPC elf64abi document.
  10  *
  11  * This file is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU General Public License as published by the
  13  * Free Software Foundation; either version 2, or (at your option) any
  14  * later version.
  15  *
  16  * In addition to the permissions in the GNU General Public License, the
  17  * Free Software Foundation gives you unlimited permission to link the
  18  * compiled version of this file with other programs, and to distribute
  19  * those programs without any restriction coming from the use of this
  20  * file.  (The General Public License restrictions do apply in other
  21  * respects; for example, they cover modification of the file, and
  22  * distribution when not linked into another program.)
  23  *
  24  * This file is distributed in the hope that it will be useful, but
  25  * WITHOUT ANY WARRANTY; without even the implied warranty of
  26  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  27  * General Public License for more details.
  28  *
  29  * You should have received a copy of the GNU General Public License
  30  * along with this program; see the file COPYING.  If not, write to
  31  * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  32  * Boston, MA 02110-1301, USA.
  33  *
  34  *    As a special exception, if you link this library with files
  35  *    compiled with GCC to produce an executable, this does not cause
  36  *    the resulting executable to be covered by the GNU General Public License.
  37  *    This exception does not however invalidate any other reasons why
  38  *    the executable file might be covered by the GNU General Public License.
  39  */
  40 
  41 #include <asm/ppc_asm.h>
  42 
  43         .file   "crtsavres.S"
  44 
  45 #ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
  46 
  47         .section ".text"
  48 
  49 #ifndef CONFIG_PPC64
  50 
  51 /* Routines for saving integer registers, called by the compiler.  */
  52 /* Called with r11 pointing to the stack header word of the caller of the */
  53 /* function, just beyond the end of the integer save area.  */
  54 
  55 _GLOBAL(_savegpr_14)
  56 _GLOBAL(_save32gpr_14)
  57         stw     14,-72(11)      /* save gp registers */
  58 _GLOBAL(_savegpr_15)
  59 _GLOBAL(_save32gpr_15)
  60         stw     15,-68(11)
  61 _GLOBAL(_savegpr_16)
  62 _GLOBAL(_save32gpr_16)
  63         stw     16,-64(11)
  64 _GLOBAL(_savegpr_17)
  65 _GLOBAL(_save32gpr_17)
  66         stw     17,-60(11)
  67 _GLOBAL(_savegpr_18)
  68 _GLOBAL(_save32gpr_18)
  69         stw     18,-56(11)
  70 _GLOBAL(_savegpr_19)
  71 _GLOBAL(_save32gpr_19)
  72         stw     19,-52(11)
  73 _GLOBAL(_savegpr_20)
  74 _GLOBAL(_save32gpr_20)
  75         stw     20,-48(11)
  76 _GLOBAL(_savegpr_21)
  77 _GLOBAL(_save32gpr_21)
  78         stw     21,-44(11)
  79 _GLOBAL(_savegpr_22)
  80 _GLOBAL(_save32gpr_22)
  81         stw     22,-40(11)
  82 _GLOBAL(_savegpr_23)
  83 _GLOBAL(_save32gpr_23)
  84         stw     23,-36(11)
  85 _GLOBAL(_savegpr_24)
  86 _GLOBAL(_save32gpr_24)
  87         stw     24,-32(11)
  88 _GLOBAL(_savegpr_25)
  89 _GLOBAL(_save32gpr_25)
  90         stw     25,-28(11)
  91 _GLOBAL(_savegpr_26)
  92 _GLOBAL(_save32gpr_26)
  93         stw     26,-24(11)
  94 _GLOBAL(_savegpr_27)
  95 _GLOBAL(_save32gpr_27)
  96         stw     27,-20(11)
  97 _GLOBAL(_savegpr_28)
  98 _GLOBAL(_save32gpr_28)
  99         stw     28,-16(11)
 100 _GLOBAL(_savegpr_29)
 101 _GLOBAL(_save32gpr_29)
 102         stw     29,-12(11)
 103 _GLOBAL(_savegpr_30)
 104 _GLOBAL(_save32gpr_30)
 105         stw     30,-8(11)
 106 _GLOBAL(_savegpr_31)
 107 _GLOBAL(_save32gpr_31)
 108         stw     31,-4(11)
 109         blr
 110 
 111 /* Routines for restoring integer registers, called by the compiler.  */
 112 /* Called with r11 pointing to the stack header word of the caller of the */
 113 /* function, just beyond the end of the integer restore area.  */
 114 
 115 _GLOBAL(_restgpr_14)
 116 _GLOBAL(_rest32gpr_14)
 117         lwz     14,-72(11)      /* restore gp registers */
 118 _GLOBAL(_restgpr_15)
 119 _GLOBAL(_rest32gpr_15)
 120         lwz     15,-68(11)
 121 _GLOBAL(_restgpr_16)
 122 _GLOBAL(_rest32gpr_16)
 123         lwz     16,-64(11)
 124 _GLOBAL(_restgpr_17)
 125 _GLOBAL(_rest32gpr_17)
 126         lwz     17,-60(11)
 127 _GLOBAL(_restgpr_18)
 128 _GLOBAL(_rest32gpr_18)
 129         lwz     18,-56(11)
 130 _GLOBAL(_restgpr_19)
 131 _GLOBAL(_rest32gpr_19)
 132         lwz     19,-52(11)
 133 _GLOBAL(_restgpr_20)
 134 _GLOBAL(_rest32gpr_20)
 135         lwz     20,-48(11)
 136 _GLOBAL(_restgpr_21)
 137 _GLOBAL(_rest32gpr_21)
 138         lwz     21,-44(11)
 139 _GLOBAL(_restgpr_22)
 140 _GLOBAL(_rest32gpr_22)
 141         lwz     22,-40(11)
 142 _GLOBAL(_restgpr_23)
 143 _GLOBAL(_rest32gpr_23)
 144         lwz     23,-36(11)
 145 _GLOBAL(_restgpr_24)
 146 _GLOBAL(_rest32gpr_24)
 147         lwz     24,-32(11)
 148 _GLOBAL(_restgpr_25)
 149 _GLOBAL(_rest32gpr_25)
 150         lwz     25,-28(11)
 151 _GLOBAL(_restgpr_26)
 152 _GLOBAL(_rest32gpr_26)
 153         lwz     26,-24(11)
 154 _GLOBAL(_restgpr_27)
 155 _GLOBAL(_rest32gpr_27)
 156         lwz     27,-20(11)
 157 _GLOBAL(_restgpr_28)
 158 _GLOBAL(_rest32gpr_28)
 159         lwz     28,-16(11)
 160 _GLOBAL(_restgpr_29)
 161 _GLOBAL(_rest32gpr_29)
 162         lwz     29,-12(11)
 163 _GLOBAL(_restgpr_30)
 164 _GLOBAL(_rest32gpr_30)
 165         lwz     30,-8(11)
 166 _GLOBAL(_restgpr_31)
 167 _GLOBAL(_rest32gpr_31)
 168         lwz     31,-4(11)
 169         blr
 170 
 171 /* Routines for restoring integer registers, called by the compiler.  */
 172 /* Called with r11 pointing to the stack header word of the caller of the */
 173 /* function, just beyond the end of the integer restore area.  */
 174 
 175 _GLOBAL(_restgpr_14_x)
 176 _GLOBAL(_rest32gpr_14_x)
 177         lwz     14,-72(11)      /* restore gp registers */
 178 _GLOBAL(_restgpr_15_x)
 179 _GLOBAL(_rest32gpr_15_x)
 180         lwz     15,-68(11)
 181 _GLOBAL(_restgpr_16_x)
 182 _GLOBAL(_rest32gpr_16_x)
 183         lwz     16,-64(11)
 184 _GLOBAL(_restgpr_17_x)
 185 _GLOBAL(_rest32gpr_17_x)
 186         lwz     17,-60(11)
 187 _GLOBAL(_restgpr_18_x)
 188 _GLOBAL(_rest32gpr_18_x)
 189         lwz     18,-56(11)
 190 _GLOBAL(_restgpr_19_x)
 191 _GLOBAL(_rest32gpr_19_x)
 192         lwz     19,-52(11)
 193 _GLOBAL(_restgpr_20_x)
 194 _GLOBAL(_rest32gpr_20_x)
 195         lwz     20,-48(11)
 196 _GLOBAL(_restgpr_21_x)
 197 _GLOBAL(_rest32gpr_21_x)
 198         lwz     21,-44(11)
 199 _GLOBAL(_restgpr_22_x)
 200 _GLOBAL(_rest32gpr_22_x)
 201         lwz     22,-40(11)
 202 _GLOBAL(_restgpr_23_x)
 203 _GLOBAL(_rest32gpr_23_x)
 204         lwz     23,-36(11)
 205 _GLOBAL(_restgpr_24_x)
 206 _GLOBAL(_rest32gpr_24_x)
 207         lwz     24,-32(11)
 208 _GLOBAL(_restgpr_25_x)
 209 _GLOBAL(_rest32gpr_25_x)
 210         lwz     25,-28(11)
 211 _GLOBAL(_restgpr_26_x)
 212 _GLOBAL(_rest32gpr_26_x)
 213         lwz     26,-24(11)
 214 _GLOBAL(_restgpr_27_x)
 215 _GLOBAL(_rest32gpr_27_x)
 216         lwz     27,-20(11)
 217 _GLOBAL(_restgpr_28_x)
 218 _GLOBAL(_rest32gpr_28_x)
 219         lwz     28,-16(11)
 220 _GLOBAL(_restgpr_29_x)
 221 _GLOBAL(_rest32gpr_29_x)
 222         lwz     29,-12(11)
 223 _GLOBAL(_restgpr_30_x)
 224 _GLOBAL(_rest32gpr_30_x)
 225         lwz     30,-8(11)
 226 _GLOBAL(_restgpr_31_x)
 227 _GLOBAL(_rest32gpr_31_x)
 228         lwz     0,4(11)
 229         lwz     31,-4(11)
 230         mtlr    0
 231         mr      1,11
 232         blr
 233 
 234 #ifdef CONFIG_ALTIVEC
 235 /* Called with r0 pointing just beyond the end of the vector save area.  */
 236 
 237 _GLOBAL(_savevr_20)
 238         li      r11,-192
 239         stvx    v20,r11,r0
 240 _GLOBAL(_savevr_21)
 241         li      r11,-176
 242         stvx    v21,r11,r0
 243 _GLOBAL(_savevr_22)
 244         li      r11,-160
 245         stvx    v22,r11,r0
 246 _GLOBAL(_savevr_23)
 247         li      r11,-144
 248         stvx    v23,r11,r0
 249 _GLOBAL(_savevr_24)
 250         li      r11,-128
 251         stvx    v24,r11,r0
 252 _GLOBAL(_savevr_25)
 253         li      r11,-112
 254         stvx    v25,r11,r0
 255 _GLOBAL(_savevr_26)
 256         li      r11,-96
 257         stvx    v26,r11,r0
 258 _GLOBAL(_savevr_27)
 259         li      r11,-80
 260         stvx    v27,r11,r0
 261 _GLOBAL(_savevr_28)
 262         li      r11,-64
 263         stvx    v28,r11,r0
 264 _GLOBAL(_savevr_29)
 265         li      r11,-48
 266         stvx    v29,r11,r0
 267 _GLOBAL(_savevr_30)
 268         li      r11,-32
 269         stvx    v30,r11,r0
 270 _GLOBAL(_savevr_31)
 271         li      r11,-16
 272         stvx    v31,r11,r0
 273         blr
 274 
 275 _GLOBAL(_restvr_20)
 276         li      r11,-192
 277         lvx     v20,r11,r0
 278 _GLOBAL(_restvr_21)
 279         li      r11,-176
 280         lvx     v21,r11,r0
 281 _GLOBAL(_restvr_22)
 282         li      r11,-160
 283         lvx     v22,r11,r0
 284 _GLOBAL(_restvr_23)
 285         li      r11,-144
 286         lvx     v23,r11,r0
 287 _GLOBAL(_restvr_24)
 288         li      r11,-128
 289         lvx     v24,r11,r0
 290 _GLOBAL(_restvr_25)
 291         li      r11,-112
 292         lvx     v25,r11,r0
 293 _GLOBAL(_restvr_26)
 294         li      r11,-96
 295         lvx     v26,r11,r0
 296 _GLOBAL(_restvr_27)
 297         li      r11,-80
 298         lvx     v27,r11,r0
 299 _GLOBAL(_restvr_28)
 300         li      r11,-64
 301         lvx     v28,r11,r0
 302 _GLOBAL(_restvr_29)
 303         li      r11,-48
 304         lvx     v29,r11,r0
 305 _GLOBAL(_restvr_30)
 306         li      r11,-32
 307         lvx     v30,r11,r0
 308 _GLOBAL(_restvr_31)
 309         li      r11,-16
 310         lvx     v31,r11,r0
 311         blr
 312 
 313 #endif /* CONFIG_ALTIVEC */
 314 
 315 #else /* CONFIG_PPC64 */
 316 
 317 .globl  _savegpr0_14
 318 _savegpr0_14:
 319         std     r14,-144(r1)
 320 .globl  _savegpr0_15
 321 _savegpr0_15:
 322         std     r15,-136(r1)
 323 .globl  _savegpr0_16
 324 _savegpr0_16:
 325         std     r16,-128(r1)
 326 .globl  _savegpr0_17
 327 _savegpr0_17:
 328         std     r17,-120(r1)
 329 .globl  _savegpr0_18
 330 _savegpr0_18:
 331         std     r18,-112(r1)
 332 .globl  _savegpr0_19
 333 _savegpr0_19:
 334         std     r19,-104(r1)
 335 .globl  _savegpr0_20
 336 _savegpr0_20:
 337         std     r20,-96(r1)
 338 .globl  _savegpr0_21
 339 _savegpr0_21:
 340         std     r21,-88(r1)
 341 .globl  _savegpr0_22
 342 _savegpr0_22:
 343         std     r22,-80(r1)
 344 .globl  _savegpr0_23
 345 _savegpr0_23:
 346         std     r23,-72(r1)
 347 .globl  _savegpr0_24
 348 _savegpr0_24:
 349         std     r24,-64(r1)
 350 .globl  _savegpr0_25
 351 _savegpr0_25:
 352         std     r25,-56(r1)
 353 .globl  _savegpr0_26
 354 _savegpr0_26:
 355         std     r26,-48(r1)
 356 .globl  _savegpr0_27
 357 _savegpr0_27:
 358         std     r27,-40(r1)
 359 .globl  _savegpr0_28
 360 _savegpr0_28:
 361         std     r28,-32(r1)
 362 .globl  _savegpr0_29
 363 _savegpr0_29:
 364         std     r29,-24(r1)
 365 .globl  _savegpr0_30
 366 _savegpr0_30:
 367         std     r30,-16(r1)
 368 .globl  _savegpr0_31
 369 _savegpr0_31:
 370         std     r31,-8(r1)
 371         std     r0,16(r1)
 372         blr
 373 
 374 .globl  _restgpr0_14
 375 _restgpr0_14:
 376         ld      r14,-144(r1)
 377 .globl  _restgpr0_15
 378 _restgpr0_15:
 379         ld      r15,-136(r1)
 380 .globl  _restgpr0_16
 381 _restgpr0_16:
 382         ld      r16,-128(r1)
 383 .globl  _restgpr0_17
 384 _restgpr0_17:
 385         ld      r17,-120(r1)
 386 .globl  _restgpr0_18
 387 _restgpr0_18:
 388         ld      r18,-112(r1)
 389 .globl  _restgpr0_19
 390 _restgpr0_19:
 391         ld      r19,-104(r1)
 392 .globl  _restgpr0_20
 393 _restgpr0_20:
 394         ld      r20,-96(r1)
 395 .globl  _restgpr0_21
 396 _restgpr0_21:
 397         ld      r21,-88(r1)
 398 .globl  _restgpr0_22
 399 _restgpr0_22:
 400         ld      r22,-80(r1)
 401 .globl  _restgpr0_23
 402 _restgpr0_23:
 403         ld      r23,-72(r1)
 404 .globl  _restgpr0_24
 405 _restgpr0_24:
 406         ld      r24,-64(r1)
 407 .globl  _restgpr0_25
 408 _restgpr0_25:
 409         ld      r25,-56(r1)
 410 .globl  _restgpr0_26
 411 _restgpr0_26:
 412         ld      r26,-48(r1)
 413 .globl  _restgpr0_27
 414 _restgpr0_27:
 415         ld      r27,-40(r1)
 416 .globl  _restgpr0_28
 417 _restgpr0_28:
 418         ld      r28,-32(r1)
 419 .globl  _restgpr0_29
 420 _restgpr0_29:
 421         ld      r0,16(r1)
 422         ld      r29,-24(r1)
 423         mtlr    r0
 424         ld      r30,-16(r1)
 425         ld      r31,-8(r1)
 426         blr
 427 
 428 .globl  _restgpr0_30
 429 _restgpr0_30:
 430         ld      r30,-16(r1)
 431 .globl  _restgpr0_31
 432 _restgpr0_31:
 433         ld      r0,16(r1)
 434         ld      r31,-8(r1)
 435         mtlr    r0
 436         blr
 437 
 438 #ifdef CONFIG_ALTIVEC
 439 /* Called with r0 pointing just beyond the end of the vector save area.  */
 440 
 441 .globl  _savevr_20
 442 _savevr_20:
 443         li      r12,-192
 444         stvx    v20,r12,r0
 445 .globl  _savevr_21
 446 _savevr_21:
 447         li      r12,-176
 448         stvx    v21,r12,r0
 449 .globl  _savevr_22
 450 _savevr_22:
 451         li      r12,-160
 452         stvx    v22,r12,r0
 453 .globl  _savevr_23
 454 _savevr_23:
 455         li      r12,-144
 456         stvx    v23,r12,r0
 457 .globl  _savevr_24
 458 _savevr_24:
 459         li      r12,-128
 460         stvx    v24,r12,r0
 461 .globl  _savevr_25
 462 _savevr_25:
 463         li      r12,-112
 464         stvx    v25,r12,r0
 465 .globl  _savevr_26
 466 _savevr_26:
 467         li      r12,-96
 468         stvx    v26,r12,r0
 469 .globl  _savevr_27
 470 _savevr_27:
 471         li      r12,-80
 472         stvx    v27,r12,r0
 473 .globl  _savevr_28
 474 _savevr_28:
 475         li      r12,-64
 476         stvx    v28,r12,r0
 477 .globl  _savevr_29
 478 _savevr_29:
 479         li      r12,-48
 480         stvx    v29,r12,r0
 481 .globl  _savevr_30
 482 _savevr_30:
 483         li      r12,-32
 484         stvx    v30,r12,r0
 485 .globl  _savevr_31
 486 _savevr_31:
 487         li      r12,-16
 488         stvx    v31,r12,r0
 489         blr
 490 
 491 .globl  _restvr_20
 492 _restvr_20:
 493         li      r12,-192
 494         lvx     v20,r12,r0
 495 .globl  _restvr_21
 496 _restvr_21:
 497         li      r12,-176
 498         lvx     v21,r12,r0
 499 .globl  _restvr_22
 500 _restvr_22:
 501         li      r12,-160
 502         lvx     v22,r12,r0
 503 .globl  _restvr_23
 504 _restvr_23:
 505         li      r12,-144
 506         lvx     v23,r12,r0
 507 .globl  _restvr_24
 508 _restvr_24:
 509         li      r12,-128
 510         lvx     v24,r12,r0
 511 .globl  _restvr_25
 512 _restvr_25:
 513         li      r12,-112
 514         lvx     v25,r12,r0
 515 .globl  _restvr_26
 516 _restvr_26:
 517         li      r12,-96
 518         lvx     v26,r12,r0
 519 .globl  _restvr_27
 520 _restvr_27:
 521         li      r12,-80
 522         lvx     v27,r12,r0
 523 .globl  _restvr_28
 524 _restvr_28:
 525         li      r12,-64
 526         lvx     v28,r12,r0
 527 .globl  _restvr_29
 528 _restvr_29:
 529         li      r12,-48
 530         lvx     v29,r12,r0
 531 .globl  _restvr_30
 532 _restvr_30:
 533         li      r12,-32
 534         lvx     v30,r12,r0
 535 .globl  _restvr_31
 536 _restvr_31:
 537         li      r12,-16
 538         lvx     v31,r12,r0
 539         blr
 540 
 541 #endif /* CONFIG_ALTIVEC */
 542 
 543 #endif /* CONFIG_PPC64 */
 544 
 545 #endif
/* [<][>][^][v][top][bottom][index][help] */
root/arch/powerpc/lib/crtsavres.S
