Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/powerpc/lib/crtsavres.S
26424 views
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 __powerpc64__

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

546


547