Commit | Line | Data |
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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 | 22 | |
58caa3dc DJ |
23 | /* Note: These functions preserve the reserved bits in control registers. |
24 | However, gdbserver promptly throws away that information. */ | |
25 | ||
26 | /* These structs should have the proper sizes and alignment on both | |
27 | i386 and x86-64 machines. */ | |
28 | ||
29 | struct i387_fsave { | |
30 | /* All these are only sixteen bits, plus padding, except for fop (which | |
31 | is only eleven bits), and fooff / fioff (which are 32 bits each). */ | |
0c2ead7e DJ |
32 | unsigned short fctrl; |
33 | unsigned short pad1; | |
34 | unsigned short fstat; | |
35 | unsigned short pad2; | |
36 | unsigned short ftag; | |
37 | unsigned short pad3; | |
58caa3dc DJ |
38 | unsigned int fioff; |
39 | unsigned short fiseg; | |
40 | unsigned short fop; | |
41 | unsigned int fooff; | |
0c2ead7e DJ |
42 | unsigned short foseg; |
43 | unsigned short pad4; | |
58caa3dc DJ |
44 | |
45 | /* Space for eight 80-bit FP values. */ | |
f450004a | 46 | unsigned char st_space[80]; |
58caa3dc DJ |
47 | }; |
48 | ||
49 | struct i387_fxsave { | |
50 | /* All these are only sixteen bits, plus padding, except for fop (which | |
51 | is only eleven bits), and fooff / fioff (which are 32 bits each). */ | |
52 | unsigned short fctrl; | |
53 | unsigned short fstat; | |
54 | unsigned short ftag; | |
55 | unsigned short fop; | |
56 | unsigned int fioff; | |
0c2ead7e DJ |
57 | unsigned short fiseg; |
58 | unsigned short pad1; | |
58caa3dc | 59 | unsigned int fooff; |
0c2ead7e DJ |
60 | unsigned short foseg; |
61 | unsigned short pad12; | |
58caa3dc DJ |
62 | |
63 | unsigned int mxcsr; | |
0c2ead7e | 64 | unsigned int pad3; |
58caa3dc DJ |
65 | |
66 | /* Space for eight 80-bit FP values in 128-bit spaces. */ | |
f450004a | 67 | unsigned char st_space[128]; |
58caa3dc DJ |
68 | |
69 | /* Space for eight 128-bit XMM values, or 16 on x86-64. */ | |
f450004a | 70 | unsigned char xmm_space[256]; |
58caa3dc DJ |
71 | }; |
72 | ||
1570b33e L |
73 | struct i387_xsave { |
74 | /* All these are only sixteen bits, plus padding, except for fop (which | |
75 | is only eleven bits), and fooff / fioff (which are 32 bits each). */ | |
76 | unsigned short fctrl; | |
77 | unsigned short fstat; | |
78 | unsigned short ftag; | |
79 | unsigned short fop; | |
80 | unsigned int fioff; | |
81 | unsigned short fiseg; | |
82 | unsigned short pad1; | |
83 | unsigned int fooff; | |
84 | unsigned short foseg; | |
85 | unsigned short pad12; | |
86 | ||
87 | unsigned int mxcsr; | |
88 | unsigned int mxcsr_mask; | |
89 | ||
90 | /* Space for eight 80-bit FP values in 128-bit spaces. */ | |
91 | unsigned char st_space[128]; | |
92 | ||
93 | /* Space for eight 128-bit XMM values, or 16 on x86-64. */ | |
94 | unsigned char xmm_space[256]; | |
95 | ||
96 | unsigned char reserved1[48]; | |
97 | ||
98 | /* The extended control register 0 (the XFEATURE_ENABLED_MASK | |
99 | register). */ | |
100 | unsigned long long xcr0; | |
101 | ||
102 | unsigned char reserved2[40]; | |
103 | ||
104 | /* The XSTATE_BV bit vector. */ | |
105 | unsigned long long xstate_bv; | |
106 | ||
107 | unsigned char reserved3[56]; | |
108 | ||
109 | /* Space for eight upper 128-bit YMM values, or 16 on x86-64. */ | |
110 | unsigned char ymmh_space[256]; | |
111 | }; | |
112 | ||
58caa3dc | 113 | void |
442ea881 | 114 | i387_cache_to_fsave (struct regcache *regcache, void *buf) |
58caa3dc DJ |
115 | { |
116 | struct i387_fsave *fp = (struct i387_fsave *) buf; | |
117 | int i; | |
3aee8918 | 118 | int st0_regnum = find_regno (regcache->tdesc, "st0"); |
58caa3dc DJ |
119 | unsigned long val, val2; |
120 | ||
121 | for (i = 0; i < 8; i++) | |
442ea881 PA |
122 | collect_register (regcache, i + st0_regnum, |
123 | ((char *) &fp->st_space[0]) + i * 10); | |
58caa3dc | 124 | |
442ea881 PA |
125 | collect_register_by_name (regcache, "fioff", &fp->fioff); |
126 | collect_register_by_name (regcache, "fooff", &fp->fooff); | |
58caa3dc DJ |
127 | |
128 | /* This one's 11 bits... */ | |
442ea881 | 129 | collect_register_by_name (regcache, "fop", &val2); |
58caa3dc DJ |
130 | fp->fop = (val2 & 0x7FF) | (fp->fop & 0xF800); |
131 | ||
132 | /* Some registers are 16-bit. */ | |
442ea881 | 133 | collect_register_by_name (regcache, "fctrl", &val); |
0c2ead7e | 134 | fp->fctrl = val; |
58caa3dc | 135 | |
442ea881 | 136 | collect_register_by_name (regcache, "fstat", &val); |
58caa3dc | 137 | val &= 0xFFFF; |
0c2ead7e | 138 | fp->fstat = val; |
58caa3dc | 139 | |
442ea881 | 140 | collect_register_by_name (regcache, "ftag", &val); |
58caa3dc | 141 | val &= 0xFFFF; |
0c2ead7e | 142 | fp->ftag = val; |
58caa3dc | 143 | |
442ea881 | 144 | collect_register_by_name (regcache, "fiseg", &val); |
58caa3dc | 145 | val &= 0xFFFF; |
0c2ead7e | 146 | fp->fiseg = val; |
58caa3dc | 147 | |
442ea881 | 148 | collect_register_by_name (regcache, "foseg", &val); |
58caa3dc | 149 | val &= 0xFFFF; |
0c2ead7e | 150 | fp->foseg = val; |
58caa3dc DJ |
151 | } |
152 | ||
153 | void | |
442ea881 | 154 | i387_fsave_to_cache (struct regcache *regcache, const void *buf) |
58caa3dc DJ |
155 | { |
156 | struct i387_fsave *fp = (struct i387_fsave *) buf; | |
157 | int i; | |
3aee8918 | 158 | int st0_regnum = find_regno (regcache->tdesc, "st0"); |
58caa3dc DJ |
159 | unsigned long val; |
160 | ||
161 | for (i = 0; i < 8; i++) | |
442ea881 PA |
162 | supply_register (regcache, i + st0_regnum, |
163 | ((char *) &fp->st_space[0]) + i * 10); | |
58caa3dc | 164 | |
442ea881 PA |
165 | supply_register_by_name (regcache, "fioff", &fp->fioff); |
166 | supply_register_by_name (regcache, "fooff", &fp->fooff); | |
1b3f6016 | 167 | |
58caa3dc DJ |
168 | /* Some registers are 16-bit. */ |
169 | val = fp->fctrl & 0xFFFF; | |
442ea881 | 170 | supply_register_by_name (regcache, "fctrl", &val); |
58caa3dc DJ |
171 | |
172 | val = fp->fstat & 0xFFFF; | |
442ea881 | 173 | supply_register_by_name (regcache, "fstat", &val); |
58caa3dc DJ |
174 | |
175 | val = fp->ftag & 0xFFFF; | |
442ea881 | 176 | supply_register_by_name (regcache, "ftag", &val); |
58caa3dc DJ |
177 | |
178 | val = fp->fiseg & 0xFFFF; | |
442ea881 | 179 | supply_register_by_name (regcache, "fiseg", &val); |
58caa3dc DJ |
180 | |
181 | val = fp->foseg & 0xFFFF; | |
442ea881 | 182 | supply_register_by_name (regcache, "foseg", &val); |
58caa3dc | 183 | |
0c2ead7e | 184 | /* fop has only 11 valid bits. */ |
58caa3dc | 185 | val = (fp->fop) & 0x7FF; |
442ea881 | 186 | supply_register_by_name (regcache, "fop", &val); |
58caa3dc DJ |
187 | } |
188 | ||
189 | void | |
442ea881 | 190 | i387_cache_to_fxsave (struct regcache *regcache, void *buf) |
58caa3dc DJ |
191 | { |
192 | struct i387_fxsave *fp = (struct i387_fxsave *) buf; | |
193 | int i; | |
3aee8918 PA |
194 | int st0_regnum = find_regno (regcache->tdesc, "st0"); |
195 | int xmm0_regnum = find_regno (regcache->tdesc, "xmm0"); | |
58caa3dc | 196 | unsigned long val, val2; |
3aee8918 PA |
197 | /* Amd64 has 16 xmm regs; I386 has 8 xmm regs. */ |
198 | int num_xmm_registers = register_size (regcache->tdesc, 0) == 8 ? 16 : 8; | |
58caa3dc DJ |
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; | |
3aee8918 PA |
252 | /* Amd64 has 16 xmm regs; I386 has 8 xmm regs. */ |
253 | int num_xmm_registers = register_size (regcache->tdesc, 0) == 8 ? 16 : 8; | |
1570b33e L |
254 | |
255 | /* The supported bits in `xstat_bv' are 1 byte. Clear part in | |
256 | vector registers if its bit in xstat_bv is zero. */ | |
257 | clear_bv = (~fp->xstate_bv) & x86_xcr0; | |
258 | ||
259 | /* Clear part in x87 and vector registers if its bit in xstat_bv is | |
260 | zero. */ | |
261 | if (clear_bv) | |
262 | { | |
263 | if ((clear_bv & I386_XSTATE_X87)) | |
264 | for (i = 0; i < 8; i++) | |
265 | memset (((char *) &fp->st_space[0]) + i * 16, 0, 10); | |
266 | ||
267 | if ((clear_bv & I386_XSTATE_SSE)) | |
268 | for (i = 0; i < num_xmm_registers; i++) | |
269 | memset (((char *) &fp->xmm_space[0]) + i * 16, 0, 16); | |
270 | ||
271 | if ((clear_bv & I386_XSTATE_AVX)) | |
272 | for (i = 0; i < num_xmm_registers; i++) | |
273 | memset (((char *) &fp->ymmh_space[0]) + i * 16, 0, 16); | |
274 | } | |
275 | ||
276 | /* Check if any x87 registers are changed. */ | |
277 | if ((x86_xcr0 & I386_XSTATE_X87)) | |
278 | { | |
3aee8918 | 279 | int st0_regnum = find_regno (regcache->tdesc, "st0"); |
1570b33e L |
280 | |
281 | for (i = 0; i < 8; i++) | |
282 | { | |
283 | collect_register (regcache, i + st0_regnum, raw); | |
284 | p = ((char *) &fp->st_space[0]) + i * 16; | |
285 | if (memcmp (raw, p, 10)) | |
286 | { | |
287 | xstate_bv |= I386_XSTATE_X87; | |
288 | memcpy (p, raw, 10); | |
289 | } | |
290 | } | |
291 | } | |
292 | ||
293 | /* Check if any SSE registers are changed. */ | |
294 | if ((x86_xcr0 & I386_XSTATE_SSE)) | |
295 | { | |
3aee8918 | 296 | int xmm0_regnum = find_regno (regcache->tdesc, "xmm0"); |
1570b33e L |
297 | |
298 | for (i = 0; i < num_xmm_registers; i++) | |
299 | { | |
300 | collect_register (regcache, i + xmm0_regnum, raw); | |
301 | p = ((char *) &fp->xmm_space[0]) + i * 16; | |
302 | if (memcmp (raw, p, 16)) | |
303 | { | |
304 | xstate_bv |= I386_XSTATE_SSE; | |
305 | memcpy (p, raw, 16); | |
306 | } | |
307 | } | |
308 | } | |
309 | ||
310 | /* Check if any AVX registers are changed. */ | |
311 | if ((x86_xcr0 & I386_XSTATE_AVX)) | |
312 | { | |
3aee8918 | 313 | int ymm0h_regnum = find_regno (regcache->tdesc, "ymm0h"); |
1570b33e L |
314 | |
315 | for (i = 0; i < num_xmm_registers; i++) | |
316 | { | |
317 | collect_register (regcache, i + ymm0h_regnum, raw); | |
318 | p = ((char *) &fp->ymmh_space[0]) + i * 16; | |
319 | if (memcmp (raw, p, 16)) | |
320 | { | |
321 | xstate_bv |= I386_XSTATE_AVX; | |
322 | memcpy (p, raw, 16); | |
323 | } | |
324 | } | |
325 | } | |
326 | ||
327 | /* Update the corresponding bits in xstate_bv if any SSE/AVX | |
328 | registers are changed. */ | |
329 | fp->xstate_bv |= xstate_bv; | |
330 | ||
331 | collect_register_by_name (regcache, "fioff", &fp->fioff); | |
332 | collect_register_by_name (regcache, "fooff", &fp->fooff); | |
333 | collect_register_by_name (regcache, "mxcsr", &fp->mxcsr); | |
334 | ||
335 | /* This one's 11 bits... */ | |
336 | collect_register_by_name (regcache, "fop", &val2); | |
337 | fp->fop = (val2 & 0x7FF) | (fp->fop & 0xF800); | |
338 | ||
339 | /* Some registers are 16-bit. */ | |
340 | collect_register_by_name (regcache, "fctrl", &val); | |
341 | fp->fctrl = val; | |
342 | ||
343 | collect_register_by_name (regcache, "fstat", &val); | |
344 | fp->fstat = val; | |
345 | ||
346 | /* Convert to the simplifed tag form stored in fxsave data. */ | |
347 | collect_register_by_name (regcache, "ftag", &val); | |
348 | val &= 0xFFFF; | |
349 | val2 = 0; | |
350 | for (i = 7; i >= 0; i--) | |
351 | { | |
352 | int tag = (val >> (i * 2)) & 3; | |
353 | ||
354 | if (tag != 3) | |
355 | val2 |= (1 << i); | |
356 | } | |
357 | fp->ftag = val2; | |
358 | ||
359 | collect_register_by_name (regcache, "fiseg", &val); | |
360 | fp->fiseg = val; | |
361 | ||
362 | collect_register_by_name (regcache, "foseg", &val); | |
363 | fp->foseg = val; | |
364 | } | |
365 | ||
58caa3dc DJ |
366 | static int |
367 | i387_ftag (struct i387_fxsave *fp, int regno) | |
368 | { | |
369 | unsigned char *raw = &fp->st_space[regno * 16]; | |
370 | unsigned int exponent; | |
371 | unsigned long fraction[2]; | |
372 | int integer; | |
373 | ||
374 | integer = raw[7] & 0x80; | |
375 | exponent = (((raw[9] & 0x7f) << 8) | raw[8]); | |
376 | fraction[0] = ((raw[3] << 24) | (raw[2] << 16) | (raw[1] << 8) | raw[0]); | |
377 | fraction[1] = (((raw[7] & 0x7f) << 24) | (raw[6] << 16) | |
1b3f6016 | 378 | | (raw[5] << 8) | raw[4]); |
58caa3dc DJ |
379 | |
380 | if (exponent == 0x7fff) | |
381 | { | |
382 | /* Special. */ | |
383 | return (2); | |
384 | } | |
385 | else if (exponent == 0x0000) | |
386 | { | |
387 | if (fraction[0] == 0x0000 && fraction[1] == 0x0000 && !integer) | |
1b3f6016 PA |
388 | { |
389 | /* Zero. */ | |
390 | return (1); | |
391 | } | |
58caa3dc | 392 | else |
1b3f6016 PA |
393 | { |
394 | /* Special. */ | |
395 | return (2); | |
396 | } | |
58caa3dc DJ |
397 | } |
398 | else | |
399 | { | |
400 | if (integer) | |
1b3f6016 PA |
401 | { |
402 | /* Valid. */ | |
403 | return (0); | |
404 | } | |
58caa3dc | 405 | else |
1b3f6016 PA |
406 | { |
407 | /* Special. */ | |
408 | return (2); | |
409 | } | |
58caa3dc DJ |
410 | } |
411 | } | |
412 | ||
413 | void | |
442ea881 | 414 | i387_fxsave_to_cache (struct regcache *regcache, const void *buf) |
58caa3dc DJ |
415 | { |
416 | struct i387_fxsave *fp = (struct i387_fxsave *) buf; | |
417 | int i, top; | |
3aee8918 PA |
418 | int st0_regnum = find_regno (regcache->tdesc, "st0"); |
419 | int xmm0_regnum = find_regno (regcache->tdesc, "xmm0"); | |
58caa3dc | 420 | unsigned long val; |
3aee8918 PA |
421 | /* Amd64 has 16 xmm regs; I386 has 8 xmm regs. */ |
422 | int num_xmm_registers = register_size (regcache->tdesc, 0) == 8 ? 16 : 8; | |
58caa3dc DJ |
423 | |
424 | for (i = 0; i < 8; i++) | |
442ea881 PA |
425 | supply_register (regcache, i + st0_regnum, |
426 | ((char *) &fp->st_space[0]) + i * 16); | |
58caa3dc | 427 | for (i = 0; i < num_xmm_registers; i++) |
442ea881 PA |
428 | supply_register (regcache, i + xmm0_regnum, |
429 | ((char *) &fp->xmm_space[0]) + i * 16); | |
58caa3dc | 430 | |
442ea881 PA |
431 | supply_register_by_name (regcache, "fioff", &fp->fioff); |
432 | supply_register_by_name (regcache, "fooff", &fp->fooff); | |
433 | supply_register_by_name (regcache, "mxcsr", &fp->mxcsr); | |
1b3f6016 | 434 | |
58caa3dc DJ |
435 | /* Some registers are 16-bit. */ |
436 | val = fp->fctrl & 0xFFFF; | |
442ea881 | 437 | supply_register_by_name (regcache, "fctrl", &val); |
58caa3dc DJ |
438 | |
439 | val = fp->fstat & 0xFFFF; | |
442ea881 | 440 | supply_register_by_name (regcache, "fstat", &val); |
58caa3dc DJ |
441 | |
442 | /* Generate the form of ftag data that GDB expects. */ | |
443 | top = (fp->fstat >> 11) & 0x7; | |
444 | val = 0; | |
445 | for (i = 7; i >= 0; i--) | |
446 | { | |
447 | int tag; | |
73725ff3 | 448 | if (fp->ftag & (1 << i)) |
58caa3dc DJ |
449 | tag = i387_ftag (fp, (i + 8 - top) % 8); |
450 | else | |
451 | tag = 3; | |
452 | val |= tag << (2 * i); | |
453 | } | |
442ea881 | 454 | supply_register_by_name (regcache, "ftag", &val); |
58caa3dc DJ |
455 | |
456 | val = fp->fiseg & 0xFFFF; | |
442ea881 | 457 | supply_register_by_name (regcache, "fiseg", &val); |
58caa3dc DJ |
458 | |
459 | val = fp->foseg & 0xFFFF; | |
442ea881 | 460 | supply_register_by_name (regcache, "foseg", &val); |
58caa3dc DJ |
461 | |
462 | val = (fp->fop) & 0x7FF; | |
442ea881 | 463 | supply_register_by_name (regcache, "fop", &val); |
58caa3dc | 464 | } |
1570b33e L |
465 | |
466 | void | |
467 | i387_xsave_to_cache (struct regcache *regcache, const void *buf) | |
468 | { | |
469 | struct i387_xsave *fp = (struct i387_xsave *) buf; | |
470 | struct i387_fxsave *fxp = (struct i387_fxsave *) buf; | |
471 | int i, top; | |
472 | unsigned long val; | |
473 | unsigned int clear_bv; | |
85724a0e | 474 | gdb_byte *p; |
3aee8918 PA |
475 | /* Amd64 has 16 xmm regs; I386 has 8 xmm regs. */ |
476 | int num_xmm_registers = register_size (regcache->tdesc, 0) == 8 ? 16 : 8; | |
1570b33e L |
477 | |
478 | /* The supported bits in `xstat_bv' are 1 byte. Clear part in | |
479 | vector registers if its bit in xstat_bv is zero. */ | |
480 | clear_bv = (~fp->xstate_bv) & x86_xcr0; | |
481 | ||
482 | /* Check if any x87 registers are changed. */ | |
85724a0e | 483 | if ((x86_xcr0 & I386_XSTATE_X87) != 0) |
1570b33e | 484 | { |
3aee8918 | 485 | int st0_regnum = find_regno (regcache->tdesc, "st0"); |
1570b33e | 486 | |
85724a0e PA |
487 | if ((clear_bv & I386_XSTATE_X87) != 0) |
488 | { | |
489 | for (i = 0; i < 8; i++) | |
1c79eb8a | 490 | supply_register_zeroed (regcache, i + st0_regnum); |
85724a0e | 491 | } |
1570b33e | 492 | else |
1570b33e | 493 | { |
85724a0e PA |
494 | p = (gdb_byte *) &fp->st_space[0]; |
495 | for (i = 0; i < 8; i++) | |
496 | supply_register (regcache, i + st0_regnum, p + i * 16); | |
1570b33e L |
497 | } |
498 | } | |
499 | ||
85724a0e | 500 | if ((x86_xcr0 & I386_XSTATE_SSE) != 0) |
1570b33e | 501 | { |
3aee8918 | 502 | int xmm0_regnum = find_regno (regcache->tdesc, "xmm0"); |
1570b33e L |
503 | |
504 | if ((clear_bv & I386_XSTATE_SSE)) | |
85724a0e PA |
505 | { |
506 | for (i = 0; i < num_xmm_registers; i++) | |
1c79eb8a | 507 | supply_register_zeroed (regcache, i + xmm0_regnum); |
85724a0e | 508 | } |
1570b33e | 509 | else |
1570b33e | 510 | { |
85724a0e PA |
511 | p = (gdb_byte *) &fp->xmm_space[0]; |
512 | for (i = 0; i < num_xmm_registers; i++) | |
513 | supply_register (regcache, i + xmm0_regnum, p + i * 16); | |
1570b33e L |
514 | } |
515 | } | |
516 | ||
85724a0e | 517 | if ((x86_xcr0 & I386_XSTATE_AVX) != 0) |
1570b33e | 518 | { |
3aee8918 | 519 | int ymm0h_regnum = find_regno (regcache->tdesc, "ymm0h"); |
1570b33e | 520 | |
85724a0e PA |
521 | if ((clear_bv & I386_XSTATE_AVX) != 0) |
522 | { | |
523 | for (i = 0; i < num_xmm_registers; i++) | |
1c79eb8a | 524 | supply_register_zeroed (regcache, i + ymm0h_regnum); |
85724a0e | 525 | } |
1570b33e | 526 | else |
1570b33e | 527 | { |
85724a0e PA |
528 | p = (gdb_byte *) &fp->ymmh_space[0]; |
529 | for (i = 0; i < num_xmm_registers; i++) | |
530 | supply_register (regcache, i + ymm0h_regnum, p + i * 16); | |
1570b33e L |
531 | } |
532 | } | |
533 | ||
534 | supply_register_by_name (regcache, "fioff", &fp->fioff); | |
535 | supply_register_by_name (regcache, "fooff", &fp->fooff); | |
536 | supply_register_by_name (regcache, "mxcsr", &fp->mxcsr); | |
537 | ||
538 | /* Some registers are 16-bit. */ | |
539 | val = fp->fctrl & 0xFFFF; | |
540 | supply_register_by_name (regcache, "fctrl", &val); | |
541 | ||
542 | val = fp->fstat & 0xFFFF; | |
543 | supply_register_by_name (regcache, "fstat", &val); | |
544 | ||
545 | /* Generate the form of ftag data that GDB expects. */ | |
546 | top = (fp->fstat >> 11) & 0x7; | |
547 | val = 0; | |
548 | for (i = 7; i >= 0; i--) | |
549 | { | |
550 | int tag; | |
551 | if (fp->ftag & (1 << i)) | |
552 | tag = i387_ftag (fxp, (i + 8 - top) % 8); | |
553 | else | |
554 | tag = 3; | |
555 | val |= tag << (2 * i); | |
556 | } | |
557 | supply_register_by_name (regcache, "ftag", &val); | |
558 | ||
559 | val = fp->fiseg & 0xFFFF; | |
560 | supply_register_by_name (regcache, "fiseg", &val); | |
561 | ||
562 | val = fp->foseg & 0xFFFF; | |
563 | supply_register_by_name (regcache, "foseg", &val); | |
564 | ||
565 | val = (fp->fop) & 0x7FF; | |
566 | supply_register_by_name (regcache, "fop", &val); | |
567 | } | |
568 | ||
569 | /* Default to SSE. */ | |
570 | unsigned long long x86_xcr0 = I386_XSTATE_SSE_MASK; |