| blob | 7e5e1c28e56ac58b4cd3ce718c8eeea92c18735e |
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 */
41 #include <asm/ppc_asm.h>
43 .file "crtsavres.S"
45 #ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
47 .section ".text"
49 #ifndef CONFIG_PPC64
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. */
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
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. */
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
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. */
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
234 #ifdef CONFIG_ALTIVEC
235 /* Called with r0 pointing just beyond the end of the vector save area. */
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
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
313 #endif /* CONFIG_ALTIVEC */
315 #else /* CONFIG_PPC64 */
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
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
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
438 #ifdef CONFIG_ALTIVEC
439 /* Called with r0 pointing just beyond the end of the vector save area. */
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
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
541 #endif /* CONFIG_ALTIVEC */
543 #endif /* CONFIG_PPC64 */
545 #endif