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
546

source code of linux/arch/powerpc/lib/crtsavres.S