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#ifndef CONFIG_PPC64 48 49 .section ".text" 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 .section ".text.save.restore","ax",@progbits 318 319.globl _savegpr0_14 320_savegpr0_14: 321 std r14,-144(r1) 322.globl _savegpr0_15 323_savegpr0_15: 324 std r15,-136(r1) 325.globl _savegpr0_16 326_savegpr0_16: 327 std r16,-128(r1) 328.globl _savegpr0_17 329_savegpr0_17: 330 std r17,-120(r1) 331.globl _savegpr0_18 332_savegpr0_18: 333 std r18,-112(r1) 334.globl _savegpr0_19 335_savegpr0_19: 336 std r19,-104(r1) 337.globl _savegpr0_20 338_savegpr0_20: 339 std r20,-96(r1) 340.globl _savegpr0_21 341_savegpr0_21: 342 std r21,-88(r1) 343.globl _savegpr0_22 344_savegpr0_22: 345 std r22,-80(r1) 346.globl _savegpr0_23 347_savegpr0_23: 348 std r23,-72(r1) 349.globl _savegpr0_24 350_savegpr0_24: 351 std r24,-64(r1) 352.globl _savegpr0_25 353_savegpr0_25: 354 std r25,-56(r1) 355.globl _savegpr0_26 356_savegpr0_26: 357 std r26,-48(r1) 358.globl _savegpr0_27 359_savegpr0_27: 360 std r27,-40(r1) 361.globl _savegpr0_28 362_savegpr0_28: 363 std r28,-32(r1) 364.globl _savegpr0_29 365_savegpr0_29: 366 std r29,-24(r1) 367.globl _savegpr0_30 368_savegpr0_30: 369 std r30,-16(r1) 370.globl _savegpr0_31 371_savegpr0_31: 372 std r31,-8(r1) 373 std r0,16(r1) 374 blr 375 376.globl _restgpr0_14 377_restgpr0_14: 378 ld r14,-144(r1) 379.globl _restgpr0_15 380_restgpr0_15: 381 ld r15,-136(r1) 382.globl _restgpr0_16 383_restgpr0_16: 384 ld r16,-128(r1) 385.globl _restgpr0_17 386_restgpr0_17: 387 ld r17,-120(r1) 388.globl _restgpr0_18 389_restgpr0_18: 390 ld r18,-112(r1) 391.globl _restgpr0_19 392_restgpr0_19: 393 ld r19,-104(r1) 394.globl _restgpr0_20 395_restgpr0_20: 396 ld r20,-96(r1) 397.globl _restgpr0_21 398_restgpr0_21: 399 ld r21,-88(r1) 400.globl _restgpr0_22 401_restgpr0_22: 402 ld r22,-80(r1) 403.globl _restgpr0_23 404_restgpr0_23: 405 ld r23,-72(r1) 406.globl _restgpr0_24 407_restgpr0_24: 408 ld r24,-64(r1) 409.globl _restgpr0_25 410_restgpr0_25: 411 ld r25,-56(r1) 412.globl _restgpr0_26 413_restgpr0_26: 414 ld r26,-48(r1) 415.globl _restgpr0_27 416_restgpr0_27: 417 ld r27,-40(r1) 418.globl _restgpr0_28 419_restgpr0_28: 420 ld r28,-32(r1) 421.globl _restgpr0_29 422_restgpr0_29: 423 ld r0,16(r1) 424 ld r29,-24(r1) 425 mtlr r0 426 ld r30,-16(r1) 427 ld r31,-8(r1) 428 blr 429 430.globl _restgpr0_30 431_restgpr0_30: 432 ld r30,-16(r1) 433.globl _restgpr0_31 434_restgpr0_31: 435 ld r0,16(r1) 436 ld r31,-8(r1) 437 mtlr r0 438 blr 439 440#ifdef CONFIG_ALTIVEC 441/* Called with r0 pointing just beyond the end of the vector save area. */ 442 443.globl _savevr_20 444_savevr_20: 445 li r12,-192 446 stvx v20,r12,r0 447.globl _savevr_21 448_savevr_21: 449 li r12,-176 450 stvx v21,r12,r0 451.globl _savevr_22 452_savevr_22: 453 li r12,-160 454 stvx v22,r12,r0 455.globl _savevr_23 456_savevr_23: 457 li r12,-144 458 stvx v23,r12,r0 459.globl _savevr_24 460_savevr_24: 461 li r12,-128 462 stvx v24,r12,r0 463.globl _savevr_25 464_savevr_25: 465 li r12,-112 466 stvx v25,r12,r0 467.globl _savevr_26 468_savevr_26: 469 li r12,-96 470 stvx v26,r12,r0 471.globl _savevr_27 472_savevr_27: 473 li r12,-80 474 stvx v27,r12,r0 475.globl _savevr_28 476_savevr_28: 477 li r12,-64 478 stvx v28,r12,r0 479.globl _savevr_29 480_savevr_29: 481 li r12,-48 482 stvx v29,r12,r0 483.globl _savevr_30 484_savevr_30: 485 li r12,-32 486 stvx v30,r12,r0 487.globl _savevr_31 488_savevr_31: 489 li r12,-16 490 stvx v31,r12,r0 491 blr 492 493.globl _restvr_20 494_restvr_20: 495 li r12,-192 496 lvx v20,r12,r0 497.globl _restvr_21 498_restvr_21: 499 li r12,-176 500 lvx v21,r12,r0 501.globl _restvr_22 502_restvr_22: 503 li r12,-160 504 lvx v22,r12,r0 505.globl _restvr_23 506_restvr_23: 507 li r12,-144 508 lvx v23,r12,r0 509.globl _restvr_24 510_restvr_24: 511 li r12,-128 512 lvx v24,r12,r0 513.globl _restvr_25 514_restvr_25: 515 li r12,-112 516 lvx v25,r12,r0 517.globl _restvr_26 518_restvr_26: 519 li r12,-96 520 lvx v26,r12,r0 521.globl _restvr_27 522_restvr_27: 523 li r12,-80 524 lvx v27,r12,r0 525.globl _restvr_28 526_restvr_28: 527 li r12,-64 528 lvx v28,r12,r0 529.globl _restvr_29 530_restvr_29: 531 li r12,-48 532 lvx v29,r12,r0 533.globl _restvr_30 534_restvr_30: 535 li r12,-32 536 lvx v30,r12,r0 537.globl _restvr_31 538_restvr_31: 539 li r12,-16 540 lvx v31,r12,r0 541 blr 542 543#endif /* CONFIG_ALTIVEC */ 544 545#endif /* CONFIG_PPC64 */ 546 547#endif 548