]>
Commit | Line | Data |
---|---|---|
58caa3dc | 1 | /* i387-specific utility functions, for the remote server for GDB. |
28e7fd62 | 2 | Copyright (C) 2000-2013 Free Software Foundation, Inc. |
58caa3dc DJ |
3 | |
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
58caa3dc DJ |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
58caa3dc DJ |
18 | |
19 | #include "server.h" | |
0d62e5e8 | 20 | #include "i387-fp.h" |
1570b33e | 21 | #include "i386-xstate.h" |
58caa3dc DJ |
22 | |
23 | int num_xmm_registers = 8; | |
24 | ||
25 | /* Note: These functions preserve the reserved bits in control registers. | |
26 | However, gdbserver promptly throws away that information. */ | |
27 | ||
28 | /* These structs should have the proper sizes and alignment on both | |
29 | i386 and x86-64 machines. */ | |
30 | ||
31 | struct i387_fsave { | |
32 | /* All these are only sixteen bits, plus padding, except for fop (which | |
33 | is only eleven bits), and fooff / fioff (which are 32 bits each). */ | |
0c2ead7e DJ |
34 | unsigned short fctrl; |
35 | unsigned short pad1; | |
36 | unsigned short fstat; | |
37 | unsigned short pad2; | |
38 | unsigned short ftag; | |
39 | unsigned short pad3; | |
58caa3dc DJ |
40 | unsigned int fioff; |
41 | unsigned short fiseg; | |
42 | unsigned short fop; | |
43 | unsigned int fooff; | |
0c2ead7e DJ |
44 | unsigned short foseg; |
45 | unsigned short pad4; | |
58caa3dc DJ |
46 | |
47 | /* Space for eight 80-bit FP values. */ | |
f450004a | 48 | unsigned char st_space[80]; |
58caa3dc DJ |
49 | }; |
50 | ||
51 | struct i387_fxsave { | |
52 | /* All these are only sixteen bits, plus padding, except for fop (which | |
53 | is only eleven bits), and fooff / fioff (which are 32 bits each). */ | |
54 | unsigned short fctrl; | |
55 | unsigned short fstat; | |
56 | unsigned short ftag; | |
57 | unsigned short fop; | |
58 | unsigned int fioff; | |
0c2ead7e DJ |
59 | unsigned short fiseg; |
60 | unsigned short pad1; | |
58caa3dc | 61 | unsigned int fooff; |
0c2ead7e DJ |
62 | unsigned short foseg; |
63 | unsigned short pad12; | |
58caa3dc DJ |
64 | |
65 | unsigned int mxcsr; | |
0c2ead7e | 66 | unsigned int pad3; |
58caa3dc DJ |
67 | |
68 | /* Space for eight 80-bit FP values in 128-bit spaces. */ | |
f450004a | 69 | unsigned char st_space[128]; |
58caa3dc DJ |
70 | |
71 | /* Space for eight 128-bit XMM values, or 16 on x86-64. */ | |
f450004a | 72 | unsigned char xmm_space[256]; |
58caa3dc DJ |
73 | }; |
74 | ||
1570b33e L |
75 | struct i387_xsave { |
76 | /* All these are only sixteen bits, plus padding, except for fop (which | |
77 | is only eleven bits), and fooff / fioff (which are 32 bits each). */ | |
78 | unsigned short fctrl; | |
79 | unsigned short fstat; | |
80 | unsigned short ftag; | |
81 | unsigned short fop; | |
82 | unsigned int fioff; | |
83 | unsigned short fiseg; | |
84 | unsigned short pad1; | |
85 | unsigned int fooff; | |
86 | unsigned short foseg; | |
87 | unsigned short pad12; | |
88 | ||
89 | unsigned int mxcsr; | |
90 | unsigned int mxcsr_mask; | |
91 | ||
92 | /* Space for eight 80-bit FP values in 128-bit spaces. */ | |
93 | unsigned char st_space[128]; | |
94 | ||
95 | /* Space for eight 128-bit XMM values, or 16 on x86-64. */ | |
96 | unsigned char xmm_space[256]; | |
97 | ||
98 | unsigned char reserved1[48]; | |
99 | ||
100 | /* The extended control register 0 (the XFEATURE_ENABLED_MASK | |
101 | register). */ | |
102 | unsigned long long xcr0; | |
103 | ||
104 | unsigned char reserved2[40]; | |
105 | ||
106 | /* The XSTATE_BV bit vector. */ | |
107 | unsigned long long xstate_bv; | |
108 | ||
109 | unsigned char reserved3[56]; | |
110 | ||
111 | /* Space for eight upper 128-bit YMM values, or 16 on x86-64. */ | |
112 | unsigned char ymmh_space[256]; | |
113 | }; | |
114 | ||
58caa3dc | 115 | void |
442ea881 | 116 | i387_cache_to_fsave (struct regcache *regcache, void *buf) |
58caa3dc DJ |
117 | { |
118 | struct i387_fsave *fp = (struct i387_fsave *) buf; | |
119 | int i; | |
120 | int st0_regnum = find_regno ("st0"); | |
121 | unsigned long val, val2; | |
122 | ||
123 | for (i = 0; i < 8; i++) | |
442ea881 PA |
124 | collect_register (regcache, i + st0_regnum, |
125 | ((char *) &fp->st_space[0]) + i * 10); | |
58caa3dc | 126 | |
442ea881 PA |
127 | collect_register_by_name (regcache, "fioff", &fp->fioff); |
128 | collect_register_by_name (regcache, "fooff", &fp->fooff); | |
58caa3dc DJ |
129 | |
130 | /* This one's 11 bits... */ | |
442ea881 | 131 | collect_register_by_name (regcache, "fop", &val2); |
58caa3dc DJ |
132 | fp->fop = (val2 & 0x7FF) | (fp->fop & 0xF800); |
133 | ||
134 | /* Some registers are 16-bit. */ | |
442ea881 | 135 | collect_register_by_name (regcache, "fctrl", &val); |
0c2ead7e | 136 | fp->fctrl = val; |
58caa3dc | 137 | |
442ea881 | 138 | collect_register_by_name (regcache, "fstat", &val); |
58caa3dc | 139 | val &= 0xFFFF; |
0c2ead7e | 140 | fp->fstat = val; |
58caa3dc | 141 | |
442ea881 | 142 | collect_register_by_name (regcache, "ftag", &val); |
58caa3dc | 143 | val &= 0xFFFF; |
0c2ead7e | 144 | fp->ftag = val; |
58caa3dc | 145 | |
442ea881 | 146 | collect_register_by_name (regcache, "fiseg", &val); |
58caa3dc | 147 | val &= 0xFFFF; |
0c2ead7e | 148 | fp->fiseg = val; |
58caa3dc | 149 | |
442ea881 | 150 | collect_register_by_name (regcache, "foseg", &val); |
58caa3dc | 151 | val &= 0xFFFF; |
0c2ead7e | 152 | fp->foseg = val; |
58caa3dc DJ |
153 | } |
154 | ||
155 | void | |
442ea881 | 156 | i387_fsave_to_cache (struct regcache *regcache, const void *buf) |
58caa3dc DJ |
157 | { |
158 | struct i387_fsave *fp = (struct i387_fsave *) buf; | |
159 | int i; | |
160 | int st0_regnum = find_regno ("st0"); | |
161 | unsigned long val; | |
162 | ||
163 | for (i = 0; i < 8; i++) | |
442ea881 PA |
164 | supply_register (regcache, i + st0_regnum, |
165 | ((char *) &fp->st_space[0]) + i * 10); | |
58caa3dc | 166 | |
442ea881 PA |
167 | supply_register_by_name (regcache, "fioff", &fp->fioff); |
168 | supply_register_by_name (regcache, "fooff", &fp->fooff); | |
1b3f6016 | 169 | |
58caa3dc DJ |
170 | /* Some registers are 16-bit. */ |
171 | val = fp->fctrl & 0xFFFF; | |
442ea881 | 172 | supply_register_by_name (regcache, "fctrl", &val); |
58caa3dc DJ |
173 | |
174 | val = fp->fstat & 0xFFFF; | |
442ea881 | 175 | supply_register_by_name (regcache, "fstat", &val); |
58caa3dc DJ |
176 | |
177 | val = fp->ftag & 0xFFFF; | |
442ea881 | 178 | supply_register_by_name (regcache, "ftag", &val); |
58caa3dc DJ |
179 | |
180 | val = fp->fiseg & 0xFFFF; | |
442ea881 | 181 | supply_register_by_name (regcache, "fiseg", &val); |
58caa3dc DJ |
182 | |
183 | val = fp->foseg & 0xFFFF; | |
442ea881 | 184 | supply_register_by_name (regcache, "foseg", &val); |
58caa3dc | 185 | |
0c2ead7e | 186 | /* fop has only 11 valid bits. */ |
58caa3dc | 187 | val = (fp->fop) & 0x7FF; |
442ea881 | 188 | supply_register_by_name (regcache, "fop", &val); |
58caa3dc DJ |
189 | } |
190 | ||
191 | void | |
442ea881 | 192 | i387_cache_to_fxsave (struct regcache *regcache, void *buf) |
58caa3dc DJ |
193 | { |
194 | struct i387_fxsave *fp = (struct i387_fxsave *) buf; | |
195 | int i; | |
196 | int st0_regnum = find_regno ("st0"); | |
197 | int xmm0_regnum = find_regno ("xmm0"); | |
198 | unsigned long val, val2; | |
199 | ||
200 | for (i = 0; i < 8; i++) | |
442ea881 PA |
201 | collect_register (regcache, i + st0_regnum, |
202 | ((char *) &fp->st_space[0]) + i * 16); | |
58caa3dc | 203 | for (i = 0; i < num_xmm_registers; i++) |
442ea881 PA |
204 | collect_register (regcache, i + xmm0_regnum, |
205 | ((char *) &fp->xmm_space[0]) + i * 16); | |
58caa3dc | 206 | |
442ea881 PA |
207 | collect_register_by_name (regcache, "fioff", &fp->fioff); |
208 | collect_register_by_name (regcache, "fooff", &fp->fooff); | |
209 | collect_register_by_name (regcache, "mxcsr", &fp->mxcsr); | |
1b3f6016 | 210 | |
58caa3dc | 211 | /* This one's 11 bits... */ |
442ea881 | 212 | collect_register_by_name (regcache, "fop", &val2); |
58caa3dc DJ |
213 | fp->fop = (val2 & 0x7FF) | (fp->fop & 0xF800); |
214 | ||
215 | /* Some registers are 16-bit. */ | |
442ea881 | 216 | collect_register_by_name (regcache, "fctrl", &val); |
0c2ead7e | 217 | fp->fctrl = val; |
58caa3dc | 218 | |
442ea881 | 219 | collect_register_by_name (regcache, "fstat", &val); |
0c2ead7e | 220 | fp->fstat = val; |
58caa3dc DJ |
221 | |
222 | /* Convert to the simplifed tag form stored in fxsave data. */ | |
442ea881 | 223 | collect_register_by_name (regcache, "ftag", &val); |
58caa3dc | 224 | val &= 0xFFFF; |
73725ff3 | 225 | val2 = 0; |
58caa3dc DJ |
226 | for (i = 7; i >= 0; i--) |
227 | { | |
228 | int tag = (val >> (i * 2)) & 3; | |
229 | ||
230 | if (tag != 3) | |
231 | val2 |= (1 << i); | |
232 | } | |
0c2ead7e | 233 | fp->ftag = val2; |
58caa3dc | 234 | |
442ea881 | 235 | collect_register_by_name (regcache, "fiseg", &val); |
0c2ead7e | 236 | fp->fiseg = val; |
58caa3dc | 237 | |
442ea881 | 238 | collect_register_by_name (regcache, "foseg", &val); |
0c2ead7e | 239 | fp->foseg = val; |
58caa3dc DJ |
240 | } |
241 | ||
1570b33e L |
242 | void |
243 | i387_cache_to_xsave (struct regcache *regcache, void *buf) | |
244 | { | |
245 | struct i387_xsave *fp = (struct i387_xsave *) buf; | |
246 | int i; | |
247 | unsigned long val, val2; | |
248 | unsigned int clear_bv; | |
249 | unsigned long long xstate_bv = 0; | |
250 | char raw[16]; | |
251 | char *p; | |
252 | ||
253 | /* The supported bits in `xstat_bv' are 1 byte. Clear part in | |
254 | vector registers if its bit in xstat_bv is zero. */ | |
255 | clear_bv = (~fp->xstate_bv) & x86_xcr0; | |
256 | ||
257 | /* Clear part in x87 and vector registers if its bit in xstat_bv is | |
258 | zero. */ | |
259 | if (clear_bv) | |
260 | { | |
261 | if ((clear_bv & I386_XSTATE_X87)) | |
262 | for (i = 0; i < 8; i++) | |
263 | memset (((char *) &fp->st_space[0]) + i * 16, 0, 10); | |
264 | ||
265 | if ((clear_bv & I386_XSTATE_SSE)) | |
266 | for (i = 0; i < num_xmm_registers; i++) | |
267 | memset (((char *) &fp->xmm_space[0]) + i * 16, 0, 16); | |
268 | ||
269 | if ((clear_bv & I386_XSTATE_AVX)) | |
270 | for (i = 0; i < num_xmm_registers; i++) | |
271 | memset (((char *) &fp->ymmh_space[0]) + i * 16, 0, 16); | |
272 | } | |
273 | ||
274 | /* Check if any x87 registers are changed. */ | |
275 | if ((x86_xcr0 & I386_XSTATE_X87)) | |
276 | { | |
277 | int st0_regnum = find_regno ("st0"); | |
278 | ||
279 | for (i = 0; i < 8; i++) | |
280 | { | |
281 | collect_register (regcache, i + st0_regnum, raw); | |
282 | p = ((char *) &fp->st_space[0]) + i * 16; | |
283 | if (memcmp (raw, p, 10)) | |
284 | { | |
285 | xstate_bv |= I386_XSTATE_X87; | |
286 | memcpy (p, raw, 10); | |
287 | } | |
288 | } | |
289 | } | |
290 | ||
291 | /* Check if any SSE registers are changed. */ | |
292 | if ((x86_xcr0 & I386_XSTATE_SSE)) | |
293 | { | |
294 | int xmm0_regnum = find_regno ("xmm0"); | |
295 | ||
296 | for (i = 0; i < num_xmm_registers; i++) | |
297 | { | |
298 | collect_register (regcache, i + xmm0_regnum, raw); | |
299 | p = ((char *) &fp->xmm_space[0]) + i * 16; | |
300 | if (memcmp (raw, p, 16)) | |
301 | { | |
302 | xstate_bv |= I386_XSTATE_SSE; | |
303 | memcpy (p, raw, 16); | |
304 | } | |
305 | } | |
306 | } | |
307 | ||
308 | /* Check if any AVX registers are changed. */ | |
309 | if ((x86_xcr0 & I386_XSTATE_AVX)) | |
310 | { | |
311 | int ymm0h_regnum = find_regno ("ymm0h"); | |
312 | ||
313 | for (i = 0; i < num_xmm_registers; i++) | |
314 | { | |
315 | collect_register (regcache, i + ymm0h_regnum, raw); | |
316 | p = ((char *) &fp->ymmh_space[0]) + i * 16; | |
317 | if (memcmp (raw, p, 16)) | |
318 | { | |
319 | xstate_bv |= I386_XSTATE_AVX; | |
320 | memcpy (p, raw, 16); | |
321 | } | |
322 | } | |
323 | } | |
324 | ||
325 | /* Update the corresponding bits in xstate_bv if any SSE/AVX | |
326 | registers are changed. */ | |
327 | fp->xstate_bv |= xstate_bv; | |
328 | ||
329 | collect_register_by_name (regcache, "fioff", &fp->fioff); | |
330 | collect_register_by_name (regcache, "fooff", &fp->fooff); | |
331 | collect_register_by_name (regcache, "mxcsr", &fp->mxcsr); | |
332 | ||
333 | /* This one's 11 bits... */ | |
334 | collect_register_by_name (regcache, "fop", &val2); | |
335 | fp->fop = (val2 & 0x7FF) | (fp->fop & 0xF800); | |
336 | ||
337 | /* Some registers are 16-bit. */ | |
338 | collect_register_by_name (regcache, "fctrl", &val); | |
339 | fp->fctrl = val; | |
340 | ||
341 | collect_register_by_name (regcache, "fstat", &val); | |
342 | fp->fstat = val; | |
343 | ||
344 | /* Convert to the simplifed tag form stored in fxsave data. */ | |
345 | collect_register_by_name (regcache, "ftag", &val); | |
346 | val &= 0xFFFF; | |
347 | val2 = 0; | |
348 | for (i = 7; i >= 0; i--) | |
349 | { | |
350 | int tag = (val >> (i * 2)) & 3; | |
351 | ||
352 | if (tag != 3) | |
353 | val2 |= (1 << i); | |
354 | } | |
355 | fp->ftag = val2; | |
356 | ||
357 | collect_register_by_name (regcache, "fiseg", &val); | |
358 | fp->fiseg = val; | |
359 | ||
360 | collect_register_by_name (regcache, "foseg", &val); | |
361 | fp->foseg = val; | |
362 | } | |
363 | ||
58caa3dc DJ |
364 | static int |
365 | i387_ftag (struct i387_fxsave *fp, int regno) | |
366 | { | |
367 | unsigned char *raw = &fp->st_space[regno * 16]; | |
368 | unsigned int exponent; | |
369 | unsigned long fraction[2]; | |
370 | int integer; | |
371 | ||
372 | integer = raw[7] & 0x80; | |
373 | exponent = (((raw[9] & 0x7f) << 8) | raw[8]); | |
374 | fraction[0] = ((raw[3] << 24) | (raw[2] << 16) | (raw[1] << 8) | raw[0]); | |
375 | fraction[1] = (((raw[7] & 0x7f) << 24) | (raw[6] << 16) | |
1b3f6016 | 376 | | (raw[5] << 8) | raw[4]); |
58caa3dc DJ |
377 | |
378 | if (exponent == 0x7fff) | |
379 | { | |
380 | /* Special. */ | |
381 | return (2); | |
382 | } | |
383 | else if (exponent == 0x0000) | |
384 | { | |
385 | if (fraction[0] == 0x0000 && fraction[1] == 0x0000 && !integer) | |
1b3f6016 PA |
386 | { |
387 | /* Zero. */ | |
388 | return (1); | |
389 | } | |
58caa3dc | 390 | else |
1b3f6016 PA |
391 | { |
392 | /* Special. */ | |
393 | return (2); | |
394 | } | |
58caa3dc DJ |
395 | } |
396 | else | |
397 | { | |
398 | if (integer) | |
1b3f6016 PA |
399 | { |
400 | /* Valid. */ | |
401 | return (0); | |
402 | } | |
58caa3dc | 403 | else |
1b3f6016 PA |
404 | { |
405 | /* Special. */ | |
406 | return (2); | |
407 | } | |
58caa3dc DJ |
408 | } |
409 | } | |
410 | ||
411 | void | |
442ea881 | 412 | i387_fxsave_to_cache (struct regcache *regcache, const void *buf) |
58caa3dc DJ |
413 | { |
414 | struct i387_fxsave *fp = (struct i387_fxsave *) buf; | |
415 | int i, top; | |
416 | int st0_regnum = find_regno ("st0"); | |
417 | int xmm0_regnum = find_regno ("xmm0"); | |
418 | unsigned long val; | |
419 | ||
420 | for (i = 0; i < 8; i++) | |
442ea881 PA |
421 | supply_register (regcache, i + st0_regnum, |
422 | ((char *) &fp->st_space[0]) + i * 16); | |
58caa3dc | 423 | for (i = 0; i < num_xmm_registers; i++) |
442ea881 PA |
424 | supply_register (regcache, i + xmm0_regnum, |
425 | ((char *) &fp->xmm_space[0]) + i * 16); | |
58caa3dc | 426 | |
442ea881 PA |
427 | supply_register_by_name (regcache, "fioff", &fp->fioff); |
428 | supply_register_by_name (regcache, "fooff", &fp->fooff); | |
429 | supply_register_by_name (regcache, "mxcsr", &fp->mxcsr); | |
1b3f6016 | 430 | |
58caa3dc DJ |
431 | /* Some registers are 16-bit. */ |
432 | val = fp->fctrl & 0xFFFF; | |
442ea881 | 433 | supply_register_by_name (regcache, "fctrl", &val); |
58caa3dc DJ |
434 | |
435 | val = fp->fstat & 0xFFFF; | |
442ea881 | 436 | supply_register_by_name (regcache, "fstat", &val); |
58caa3dc DJ |
437 | |
438 | /* Generate the form of ftag data that GDB expects. */ | |
439 | top = (fp->fstat >> 11) & 0x7; | |
440 | val = 0; | |
441 | for (i = 7; i >= 0; i--) | |
442 | { | |
443 | int tag; | |
73725ff3 | 444 | if (fp->ftag & (1 << i)) |
58caa3dc DJ |
445 | tag = i387_ftag (fp, (i + 8 - top) % 8); |
446 | else | |
447 | tag = 3; | |
448 | val |= tag << (2 * i); | |
449 | } | |
442ea881 | 450 | supply_register_by_name (regcache, "ftag", &val); |
58caa3dc DJ |
451 | |
452 | val = fp->fiseg & 0xFFFF; | |
442ea881 | 453 | supply_register_by_name (regcache, "fiseg", &val); |
58caa3dc DJ |
454 | |
455 | val = fp->foseg & 0xFFFF; | |
442ea881 | 456 | supply_register_by_name (regcache, "foseg", &val); |
58caa3dc DJ |
457 | |
458 | val = (fp->fop) & 0x7FF; | |
442ea881 | 459 | supply_register_by_name (regcache, "fop", &val); |
58caa3dc | 460 | } |
1570b33e L |
461 | |
462 | void | |
463 | i387_xsave_to_cache (struct regcache *regcache, const void *buf) | |
464 | { | |
465 | struct i387_xsave *fp = (struct i387_xsave *) buf; | |
466 | struct i387_fxsave *fxp = (struct i387_fxsave *) buf; | |
467 | int i, top; | |
468 | unsigned long val; | |
469 | unsigned int clear_bv; | |
85724a0e | 470 | gdb_byte *p; |
1570b33e L |
471 | |
472 | /* The supported bits in `xstat_bv' are 1 byte. Clear part in | |
473 | vector registers if its bit in xstat_bv is zero. */ | |
474 | clear_bv = (~fp->xstate_bv) & x86_xcr0; | |
475 | ||
476 | /* Check if any x87 registers are changed. */ | |
85724a0e | 477 | if ((x86_xcr0 & I386_XSTATE_X87) != 0) |
1570b33e L |
478 | { |
479 | int st0_regnum = find_regno ("st0"); | |
480 | ||
85724a0e PA |
481 | if ((clear_bv & I386_XSTATE_X87) != 0) |
482 | { | |
483 | for (i = 0; i < 8; i++) | |
1c79eb8a | 484 | supply_register_zeroed (regcache, i + st0_regnum); |
85724a0e | 485 | } |
1570b33e | 486 | else |
1570b33e | 487 | { |
85724a0e PA |
488 | p = (gdb_byte *) &fp->st_space[0]; |
489 | for (i = 0; i < 8; i++) | |
490 | supply_register (regcache, i + st0_regnum, p + i * 16); | |
1570b33e L |
491 | } |
492 | } | |
493 | ||
85724a0e | 494 | if ((x86_xcr0 & I386_XSTATE_SSE) != 0) |
1570b33e L |
495 | { |
496 | int xmm0_regnum = find_regno ("xmm0"); | |
497 | ||
498 | if ((clear_bv & I386_XSTATE_SSE)) | |
85724a0e PA |
499 | { |
500 | for (i = 0; i < num_xmm_registers; i++) | |
1c79eb8a | 501 | supply_register_zeroed (regcache, i + xmm0_regnum); |
85724a0e | 502 | } |
1570b33e | 503 | else |
1570b33e | 504 | { |
85724a0e PA |
505 | p = (gdb_byte *) &fp->xmm_space[0]; |
506 | for (i = 0; i < num_xmm_registers; i++) | |
507 | supply_register (regcache, i + xmm0_regnum, p + i * 16); | |
1570b33e L |
508 | } |
509 | } | |
510 | ||
85724a0e | 511 | if ((x86_xcr0 & I386_XSTATE_AVX) != 0) |
1570b33e L |
512 | { |
513 | int ymm0h_regnum = find_regno ("ymm0h"); | |
514 | ||
85724a0e PA |
515 | if ((clear_bv & I386_XSTATE_AVX) != 0) |
516 | { | |
517 | for (i = 0; i < num_xmm_registers; i++) | |
1c79eb8a | 518 | supply_register_zeroed (regcache, i + ymm0h_regnum); |
85724a0e | 519 | } |
1570b33e | 520 | else |
1570b33e | 521 | { |
85724a0e PA |
522 | p = (gdb_byte *) &fp->ymmh_space[0]; |
523 | for (i = 0; i < num_xmm_registers; i++) | |
524 | supply_register (regcache, i + ymm0h_regnum, p + i * 16); | |
1570b33e L |
525 | } |
526 | } | |
527 | ||
528 | supply_register_by_name (regcache, "fioff", &fp->fioff); | |
529 | supply_register_by_name (regcache, "fooff", &fp->fooff); | |
530 | supply_register_by_name (regcache, "mxcsr", &fp->mxcsr); | |
531 | ||
532 | /* Some registers are 16-bit. */ | |
533 | val = fp->fctrl & 0xFFFF; | |
534 | supply_register_by_name (regcache, "fctrl", &val); | |
535 | ||
536 | val = fp->fstat & 0xFFFF; | |
537 | supply_register_by_name (regcache, "fstat", &val); | |
538 | ||
539 | /* Generate the form of ftag data that GDB expects. */ | |
540 | top = (fp->fstat >> 11) & 0x7; | |
541 | val = 0; | |
542 | for (i = 7; i >= 0; i--) | |
543 | { | |
544 | int tag; | |
545 | if (fp->ftag & (1 << i)) | |
546 | tag = i387_ftag (fxp, (i + 8 - top) % 8); | |
547 | else | |
548 | tag = 3; | |
549 | val |= tag << (2 * i); | |
550 | } | |
551 | supply_register_by_name (regcache, "ftag", &val); | |
552 | ||
553 | val = fp->fiseg & 0xFFFF; | |
554 | supply_register_by_name (regcache, "fiseg", &val); | |
555 | ||
556 | val = fp->foseg & 0xFFFF; | |
557 | supply_register_by_name (regcache, "foseg", &val); | |
558 | ||
559 | val = (fp->fop) & 0x7FF; | |
560 | supply_register_by_name (regcache, "fop", &val); | |
561 | } | |
562 | ||
563 | /* Default to SSE. */ | |
564 | unsigned long long x86_xcr0 = I386_XSTATE_SSE_MASK; |