Commit | Line | Data |
---|---|---|
b811d2c2 | 1 | /* Copyright (C) 2007-2020 Free Software Foundation, Inc. |
68070c10 PA |
2 | |
3 | This file is part of GDB. | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 7 | the Free Software Foundation; either version 3 of the License, or |
68070c10 PA |
8 | (at your option) any later version. |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
68070c10 PA |
17 | |
18 | #include "server.h" | |
19 | #include "win32-low.h" | |
df7e5265 | 20 | #include "x86-low.h" |
268a13a5 | 21 | #include "gdbsupport/x86-xstate.h" |
22916b07 YQ |
22 | #ifdef __x86_64__ |
23 | #include "arch/amd64.h" | |
24 | #endif | |
25 | #include "arch/i386.h" | |
cc4d742f | 26 | #include "tdesc.h" |
190852c8 | 27 | #include "x86-tdesc.h" |
68070c10 | 28 | |
4834dad0 TT |
29 | using namespace windows_nat; |
30 | ||
54709339 PM |
31 | #ifndef CONTEXT_EXTENDED_REGISTERS |
32 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
33 | #endif | |
34 | ||
68070c10 PA |
35 | #define FCS_REGNUM 27 |
36 | #define FOP_REGNUM 31 | |
37 | ||
38 | #define FLAG_TRACE_BIT 0x100 | |
39 | ||
df7e5265 | 40 | static struct x86_debug_reg_state debug_reg_state; |
68070c10 | 41 | |
0b360f19 SM |
42 | static void |
43 | update_debug_registers (thread_info *thread) | |
a2abc7de | 44 | { |
e56f8ccb | 45 | windows_thread_info *th = (windows_thread_info *) thread_target_data (thread); |
a2abc7de | 46 | |
0b360f19 SM |
47 | /* The actual update is done later just before resuming the lwp, |
48 | we just mark that the registers need updating. */ | |
62fe396b | 49 | th->debug_registers_changed = true; |
a2abc7de | 50 | } |
34b34921 | 51 | |
aa5ca48f DE |
52 | /* Update the inferior's debug register REGNUM from STATE. */ |
53 | ||
42995dbd | 54 | static void |
df7e5265 | 55 | x86_dr_low_set_addr (int regnum, CORE_ADDR addr) |
aa5ca48f | 56 | { |
0a5b1e09 | 57 | gdb_assert (DR_FIRSTADDR <= regnum && regnum <= DR_LASTADDR); |
964e4306 | 58 | |
0b360f19 SM |
59 | /* Only update the threads of this process. */ |
60 | for_each_thread (current_thread->id.pid (), update_debug_registers); | |
964e4306 PA |
61 | } |
62 | ||
aa5ca48f DE |
63 | /* Update the inferior's DR7 debug control register from STATE. */ |
64 | ||
42995dbd | 65 | static void |
df7e5265 | 66 | x86_dr_low_set_control (unsigned long control) |
aa5ca48f | 67 | { |
a2abc7de | 68 | /* Only update the threads of this process. */ |
0b360f19 | 69 | for_each_thread (current_thread->id.pid (), update_debug_registers); |
a2abc7de PA |
70 | } |
71 | ||
72 | /* Return the current value of a DR register of the current thread's | |
73 | context. */ | |
74 | ||
75 | static DWORD64 | |
76 | win32_get_current_dr (int dr) | |
77 | { | |
e56f8ccb TT |
78 | windows_thread_info *th |
79 | = (windows_thread_info *) thread_target_data (current_thread); | |
a2abc7de PA |
80 | |
81 | win32_require_context (th); | |
82 | ||
7d186bc0 HD |
83 | #ifdef __x86_64__ |
84 | #define RET_DR(DR) \ | |
85 | case DR: \ | |
86 | return th->wow64_context.Dr ## DR | |
87 | ||
88 | if (wow64_process) | |
89 | { | |
90 | switch (dr) | |
91 | { | |
92 | RET_DR (0); | |
93 | RET_DR (1); | |
94 | RET_DR (2); | |
95 | RET_DR (3); | |
96 | RET_DR (6); | |
97 | RET_DR (7); | |
98 | } | |
99 | } | |
100 | else | |
101 | #undef RET_DR | |
102 | #endif | |
a2abc7de PA |
103 | #define RET_DR(DR) \ |
104 | case DR: \ | |
105 | return th->context.Dr ## DR | |
106 | ||
a2abc7de | 107 | { |
7d186bc0 HD |
108 | switch (dr) |
109 | { | |
110 | RET_DR (0); | |
111 | RET_DR (1); | |
112 | RET_DR (2); | |
113 | RET_DR (3); | |
114 | RET_DR (6); | |
115 | RET_DR (7); | |
116 | } | |
a2abc7de PA |
117 | } |
118 | ||
119 | #undef RET_DR | |
120 | ||
121 | gdb_assert_not_reached ("unhandled dr"); | |
122 | } | |
123 | ||
124 | static CORE_ADDR | |
125 | x86_dr_low_get_addr (int regnum) | |
126 | { | |
127 | gdb_assert (DR_FIRSTADDR <= regnum && regnum <= DR_LASTADDR); | |
128 | ||
129 | return win32_get_current_dr (regnum - DR_FIRSTADDR); | |
aa5ca48f DE |
130 | } |
131 | ||
42995dbd | 132 | static unsigned long |
df7e5265 | 133 | x86_dr_low_get_control (void) |
964e4306 | 134 | { |
a2abc7de | 135 | return win32_get_current_dr (7); |
964e4306 PA |
136 | } |
137 | ||
aa5ca48f DE |
138 | /* Get the value of the DR6 debug status register from the inferior |
139 | and record it in STATE. */ | |
140 | ||
42995dbd | 141 | static unsigned long |
df7e5265 | 142 | x86_dr_low_get_status (void) |
aa5ca48f | 143 | { |
a2abc7de | 144 | return win32_get_current_dr (6); |
aa5ca48f DE |
145 | } |
146 | ||
42995dbd | 147 | /* Low-level function vector. */ |
df7e5265 | 148 | struct x86_dr_low_type x86_dr_low = |
42995dbd | 149 | { |
df7e5265 GB |
150 | x86_dr_low_set_control, |
151 | x86_dr_low_set_addr, | |
152 | x86_dr_low_get_addr, | |
153 | x86_dr_low_get_status, | |
154 | x86_dr_low_get_control, | |
42995dbd GB |
155 | sizeof (void *), |
156 | }; | |
157 | ||
802e8e6d | 158 | /* Breakpoint/watchpoint support. */ |
aa5ca48f DE |
159 | |
160 | static int | |
802e8e6d PA |
161 | i386_supports_z_point_type (char z_type) |
162 | { | |
163 | switch (z_type) | |
164 | { | |
165 | case Z_PACKET_WRITE_WP: | |
166 | case Z_PACKET_ACCESS_WP: | |
167 | return 1; | |
168 | default: | |
169 | return 0; | |
170 | } | |
171 | } | |
172 | ||
173 | static int | |
174 | i386_insert_point (enum raw_bkpt_type type, CORE_ADDR addr, | |
175 | int size, struct raw_breakpoint *bp) | |
aa5ca48f DE |
176 | { |
177 | switch (type) | |
178 | { | |
802e8e6d PA |
179 | case raw_bkpt_type_write_wp: |
180 | case raw_bkpt_type_access_wp: | |
a4165e94 | 181 | { |
802e8e6d PA |
182 | enum target_hw_bp_type hw_type |
183 | = raw_bkpt_type_to_target_hw_bp_type (type); | |
a4165e94 | 184 | |
df7e5265 GB |
185 | return x86_dr_insert_watchpoint (&debug_reg_state, |
186 | hw_type, addr, size); | |
a4165e94 | 187 | } |
aa5ca48f DE |
188 | default: |
189 | /* Unsupported. */ | |
190 | return 1; | |
191 | } | |
192 | } | |
193 | ||
194 | static int | |
802e8e6d PA |
195 | i386_remove_point (enum raw_bkpt_type type, CORE_ADDR addr, |
196 | int size, struct raw_breakpoint *bp) | |
aa5ca48f DE |
197 | { |
198 | switch (type) | |
199 | { | |
802e8e6d PA |
200 | case raw_bkpt_type_write_wp: |
201 | case raw_bkpt_type_access_wp: | |
a4165e94 | 202 | { |
802e8e6d PA |
203 | enum target_hw_bp_type hw_type |
204 | = raw_bkpt_type_to_target_hw_bp_type (type); | |
a4165e94 | 205 | |
df7e5265 GB |
206 | return x86_dr_remove_watchpoint (&debug_reg_state, |
207 | hw_type, addr, size); | |
a4165e94 | 208 | } |
aa5ca48f DE |
209 | default: |
210 | /* Unsupported. */ | |
211 | return 1; | |
212 | } | |
213 | } | |
214 | ||
215 | static int | |
df7e5265 | 216 | x86_stopped_by_watchpoint (void) |
aa5ca48f | 217 | { |
df7e5265 | 218 | return x86_dr_stopped_by_watchpoint (&debug_reg_state); |
aa5ca48f DE |
219 | } |
220 | ||
221 | static CORE_ADDR | |
df7e5265 | 222 | x86_stopped_data_address (void) |
aa5ca48f DE |
223 | { |
224 | CORE_ADDR addr; | |
df7e5265 | 225 | if (x86_dr_stopped_data_address (&debug_reg_state, &addr)) |
aa5ca48f DE |
226 | return addr; |
227 | return 0; | |
228 | } | |
229 | ||
68070c10 | 230 | static void |
34b34921 | 231 | i386_initial_stuff (void) |
68070c10 | 232 | { |
df7e5265 | 233 | x86_low_init_dregs (&debug_reg_state); |
68070c10 PA |
234 | } |
235 | ||
236 | static void | |
e56f8ccb | 237 | i386_get_thread_context (windows_thread_info *th) |
68070c10 | 238 | { |
912cf4ba PA |
239 | /* Requesting the CONTEXT_EXTENDED_REGISTERS register set fails if |
240 | the system doesn't support extended registers. */ | |
241 | static DWORD extended_registers = CONTEXT_EXTENDED_REGISTERS; | |
34b34921 | 242 | |
912cf4ba | 243 | again: |
7d186bc0 HD |
244 | #ifdef __x86_64__ |
245 | if (wow64_process) | |
246 | th->wow64_context.ContextFlags = (CONTEXT_FULL | |
247 | | CONTEXT_FLOATING_POINT | |
248 | | CONTEXT_DEBUG_REGISTERS | |
249 | | extended_registers); | |
250 | else | |
251 | #endif | |
252 | th->context.ContextFlags = (CONTEXT_FULL | |
253 | | CONTEXT_FLOATING_POINT | |
254 | | CONTEXT_DEBUG_REGISTERS | |
255 | | extended_registers); | |
912cf4ba | 256 | |
7d186bc0 HD |
257 | BOOL ret; |
258 | #ifdef __x86_64__ | |
259 | if (wow64_process) | |
260 | ret = win32_Wow64GetThreadContext (th->h, &th->wow64_context); | |
261 | else | |
262 | #endif | |
263 | ret = GetThreadContext (th->h, &th->context); | |
264 | if (!ret) | |
912cf4ba PA |
265 | { |
266 | DWORD e = GetLastError (); | |
267 | ||
268 | if (extended_registers && e == ERROR_INVALID_PARAMETER) | |
269 | { | |
270 | extended_registers = 0; | |
271 | goto again; | |
272 | } | |
273 | ||
274 | error ("GetThreadContext failure %ld\n", (long) e); | |
275 | } | |
68070c10 PA |
276 | } |
277 | ||
278 | static void | |
e56f8ccb | 279 | i386_prepare_to_resume (windows_thread_info *th) |
68070c10 | 280 | { |
a2abc7de | 281 | if (th->debug_registers_changed) |
34b34921 | 282 | { |
df7e5265 | 283 | struct x86_debug_reg_state *dr = &debug_reg_state; |
a2abc7de PA |
284 | |
285 | win32_require_context (th); | |
286 | ||
7d186bc0 HD |
287 | #ifdef __x86_64__ |
288 | if (wow64_process) | |
289 | { | |
290 | th->wow64_context.Dr0 = dr->dr_mirror[0]; | |
291 | th->wow64_context.Dr1 = dr->dr_mirror[1]; | |
292 | th->wow64_context.Dr2 = dr->dr_mirror[2]; | |
293 | th->wow64_context.Dr3 = dr->dr_mirror[3]; | |
294 | /* th->wow64_context.Dr6 = dr->dr_status_mirror; | |
295 | FIXME: should we set dr6 also ?? */ | |
296 | th->wow64_context.Dr7 = dr->dr_control_mirror; | |
297 | } | |
298 | else | |
299 | #endif | |
300 | { | |
301 | th->context.Dr0 = dr->dr_mirror[0]; | |
302 | th->context.Dr1 = dr->dr_mirror[1]; | |
303 | th->context.Dr2 = dr->dr_mirror[2]; | |
304 | th->context.Dr3 = dr->dr_mirror[3]; | |
305 | /* th->context.Dr6 = dr->dr_status_mirror; | |
306 | FIXME: should we set dr6 also ?? */ | |
307 | th->context.Dr7 = dr->dr_control_mirror; | |
308 | } | |
34b34921 | 309 | |
62fe396b | 310 | th->debug_registers_changed = false; |
a2abc7de | 311 | } |
68070c10 PA |
312 | } |
313 | ||
68070c10 | 314 | static void |
e56f8ccb | 315 | i386_thread_added (windows_thread_info *th) |
68070c10 | 316 | { |
62fe396b | 317 | th->debug_registers_changed = true; |
68070c10 PA |
318 | } |
319 | ||
320 | static void | |
e56f8ccb | 321 | i386_single_step (windows_thread_info *th) |
68070c10 | 322 | { |
7d186bc0 HD |
323 | #ifdef __x86_64__ |
324 | if (wow64_process) | |
325 | th->wow64_context.EFlags |= FLAG_TRACE_BIT; | |
326 | else | |
327 | #endif | |
328 | th->context.EFlags |= FLAG_TRACE_BIT; | |
68070c10 PA |
329 | } |
330 | ||
331 | /* An array of offset mappings into a Win32 Context structure. | |
332 | This is a one-to-one mapping which is indexed by gdb's register | |
333 | numbers. It retrieves an offset into the context structure where | |
334 | the 4 byte register is located. | |
335 | An offset value of -1 indicates that Win32 does not provide this | |
336 | register in it's CONTEXT structure. In this case regptr will return | |
337 | a pointer into a dummy register. */ | |
7d186bc0 HD |
338 | #ifdef __x86_64__ |
339 | #define context_offset(x) (offsetof (WOW64_CONTEXT, x)) | |
340 | #else | |
68070c10 | 341 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) |
7d186bc0 HD |
342 | #endif |
343 | static const int i386_mappings[] = { | |
68070c10 PA |
344 | context_offset (Eax), |
345 | context_offset (Ecx), | |
346 | context_offset (Edx), | |
347 | context_offset (Ebx), | |
348 | context_offset (Esp), | |
349 | context_offset (Ebp), | |
350 | context_offset (Esi), | |
351 | context_offset (Edi), | |
352 | context_offset (Eip), | |
353 | context_offset (EFlags), | |
354 | context_offset (SegCs), | |
355 | context_offset (SegSs), | |
356 | context_offset (SegDs), | |
357 | context_offset (SegEs), | |
358 | context_offset (SegFs), | |
359 | context_offset (SegGs), | |
360 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
361 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
362 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
363 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
364 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
365 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
366 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
367 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
368 | context_offset (FloatSave.ControlWord), | |
369 | context_offset (FloatSave.StatusWord), | |
370 | context_offset (FloatSave.TagWord), | |
371 | context_offset (FloatSave.ErrorSelector), | |
372 | context_offset (FloatSave.ErrorOffset), | |
373 | context_offset (FloatSave.DataSelector), | |
374 | context_offset (FloatSave.DataOffset), | |
375 | context_offset (FloatSave.ErrorSelector), | |
376 | /* XMM0-7 */ | |
377 | context_offset (ExtendedRegisters[10 * 16]), | |
378 | context_offset (ExtendedRegisters[11 * 16]), | |
379 | context_offset (ExtendedRegisters[12 * 16]), | |
380 | context_offset (ExtendedRegisters[13 * 16]), | |
381 | context_offset (ExtendedRegisters[14 * 16]), | |
382 | context_offset (ExtendedRegisters[15 * 16]), | |
383 | context_offset (ExtendedRegisters[16 * 16]), | |
384 | context_offset (ExtendedRegisters[17 * 16]), | |
385 | /* MXCSR */ | |
386 | context_offset (ExtendedRegisters[24]) | |
387 | }; | |
388 | #undef context_offset | |
389 | ||
7d186bc0 | 390 | #ifdef __x86_64__ |
54709339 PM |
391 | |
392 | #define context_offset(x) (offsetof (CONTEXT, x)) | |
7d186bc0 | 393 | static const int amd64_mappings[] = |
54709339 PM |
394 | { |
395 | context_offset (Rax), | |
396 | context_offset (Rbx), | |
397 | context_offset (Rcx), | |
398 | context_offset (Rdx), | |
399 | context_offset (Rsi), | |
400 | context_offset (Rdi), | |
401 | context_offset (Rbp), | |
402 | context_offset (Rsp), | |
403 | context_offset (R8), | |
404 | context_offset (R9), | |
405 | context_offset (R10), | |
406 | context_offset (R11), | |
407 | context_offset (R12), | |
408 | context_offset (R13), | |
409 | context_offset (R14), | |
410 | context_offset (R15), | |
411 | context_offset (Rip), | |
412 | context_offset (EFlags), | |
413 | context_offset (SegCs), | |
414 | context_offset (SegSs), | |
415 | context_offset (SegDs), | |
416 | context_offset (SegEs), | |
417 | context_offset (SegFs), | |
418 | context_offset (SegGs), | |
419 | context_offset (FloatSave.FloatRegisters[0]), | |
420 | context_offset (FloatSave.FloatRegisters[1]), | |
421 | context_offset (FloatSave.FloatRegisters[2]), | |
422 | context_offset (FloatSave.FloatRegisters[3]), | |
423 | context_offset (FloatSave.FloatRegisters[4]), | |
424 | context_offset (FloatSave.FloatRegisters[5]), | |
425 | context_offset (FloatSave.FloatRegisters[6]), | |
426 | context_offset (FloatSave.FloatRegisters[7]), | |
427 | context_offset (FloatSave.ControlWord), | |
428 | context_offset (FloatSave.StatusWord), | |
429 | context_offset (FloatSave.TagWord), | |
430 | context_offset (FloatSave.ErrorSelector), | |
431 | context_offset (FloatSave.ErrorOffset), | |
432 | context_offset (FloatSave.DataSelector), | |
433 | context_offset (FloatSave.DataOffset), | |
434 | context_offset (FloatSave.ErrorSelector) | |
435 | /* XMM0-7 */ , | |
436 | context_offset (Xmm0), | |
437 | context_offset (Xmm1), | |
438 | context_offset (Xmm2), | |
439 | context_offset (Xmm3), | |
440 | context_offset (Xmm4), | |
441 | context_offset (Xmm5), | |
442 | context_offset (Xmm6), | |
443 | context_offset (Xmm7), | |
444 | context_offset (Xmm8), | |
445 | context_offset (Xmm9), | |
446 | context_offset (Xmm10), | |
447 | context_offset (Xmm11), | |
448 | context_offset (Xmm12), | |
449 | context_offset (Xmm13), | |
450 | context_offset (Xmm14), | |
451 | context_offset (Xmm15), | |
452 | /* MXCSR */ | |
453 | context_offset (FloatSave.MxCsr) | |
454 | }; | |
455 | #undef context_offset | |
456 | ||
1c07cc19 | 457 | #endif /* __x86_64__ */ |
54709339 | 458 | |
34b34921 PA |
459 | /* Fetch register from gdbserver regcache data. */ |
460 | static void | |
442ea881 | 461 | i386_fetch_inferior_register (struct regcache *regcache, |
e56f8ccb | 462 | windows_thread_info *th, int r) |
34b34921 | 463 | { |
7d186bc0 HD |
464 | const int *mappings; |
465 | #ifdef __x86_64__ | |
466 | if (!wow64_process) | |
467 | mappings = amd64_mappings; | |
468 | else | |
469 | #endif | |
470 | mappings = i386_mappings; | |
471 | ||
472 | char *context_offset; | |
473 | #ifdef __x86_64__ | |
474 | if (wow64_process) | |
475 | context_offset = (char *) &th->wow64_context + mappings[r]; | |
476 | else | |
477 | #endif | |
478 | context_offset = (char *) &th->context + mappings[r]; | |
34b34921 PA |
479 | |
480 | long l; | |
481 | if (r == FCS_REGNUM) | |
482 | { | |
483 | l = *((long *) context_offset) & 0xffff; | |
442ea881 | 484 | supply_register (regcache, r, (char *) &l); |
34b34921 PA |
485 | } |
486 | else if (r == FOP_REGNUM) | |
487 | { | |
488 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); | |
442ea881 | 489 | supply_register (regcache, r, (char *) &l); |
34b34921 PA |
490 | } |
491 | else | |
442ea881 | 492 | supply_register (regcache, r, context_offset); |
34b34921 PA |
493 | } |
494 | ||
495 | /* Store a new register value into the thread context of TH. */ | |
496 | static void | |
442ea881 | 497 | i386_store_inferior_register (struct regcache *regcache, |
e56f8ccb | 498 | windows_thread_info *th, int r) |
34b34921 | 499 | { |
7d186bc0 HD |
500 | const int *mappings; |
501 | #ifdef __x86_64__ | |
502 | if (!wow64_process) | |
503 | mappings = amd64_mappings; | |
504 | else | |
505 | #endif | |
506 | mappings = i386_mappings; | |
507 | ||
508 | char *context_offset; | |
509 | #ifdef __x86_64__ | |
510 | if (wow64_process) | |
511 | context_offset = (char *) &th->wow64_context + mappings[r]; | |
512 | else | |
513 | #endif | |
514 | context_offset = (char *) &th->context + mappings[r]; | |
515 | ||
442ea881 | 516 | collect_register (regcache, r, context_offset); |
34b34921 PA |
517 | } |
518 | ||
912cf4ba PA |
519 | static const unsigned char i386_win32_breakpoint = 0xcc; |
520 | #define i386_win32_breakpoint_len 1 | |
521 | ||
54709339 | 522 | static void |
3aee8918 | 523 | i386_arch_setup (void) |
54709339 | 524 | { |
cc4d742f SM |
525 | struct target_desc *tdesc; |
526 | ||
1c07cc19 | 527 | #ifdef __x86_64__ |
cc4d742f | 528 | tdesc = amd64_create_target_description (X86_XSTATE_SSE_MASK, false, |
de52b960 | 529 | false, false); |
7d186bc0 HD |
530 | init_target_desc (tdesc, amd64_expedite_regs); |
531 | win32_tdesc = tdesc; | |
532 | #endif | |
533 | ||
1163a4b7 | 534 | tdesc = i386_create_target_description (X86_XSTATE_SSE_MASK, false, false); |
7d186bc0 HD |
535 | init_target_desc (tdesc, i386_expedite_regs); |
536 | #ifdef __x86_64__ | |
537 | wow64_win32_tdesc = tdesc; | |
538 | #else | |
539 | win32_tdesc = tdesc; | |
54709339 | 540 | #endif |
7d186bc0 | 541 | } |
cc4d742f | 542 | |
7d186bc0 | 543 | /* Implement win32_target_ops "num_regs" method. */ |
cc4d742f | 544 | |
7d186bc0 HD |
545 | static int |
546 | i386_win32_num_regs (void) | |
547 | { | |
548 | int num_regs; | |
549 | #ifdef __x86_64__ | |
550 | if (!wow64_process) | |
551 | num_regs = sizeof (amd64_mappings) / sizeof (amd64_mappings[0]); | |
552 | else | |
553 | #endif | |
554 | num_regs = sizeof (i386_mappings) / sizeof (i386_mappings[0]); | |
555 | return num_regs; | |
54709339 PM |
556 | } |
557 | ||
d6225aff TT |
558 | /* Implement win32_target_ops "get_pc" method. */ |
559 | ||
560 | static CORE_ADDR | |
561 | i386_win32_get_pc (struct regcache *regcache) | |
562 | { | |
563 | bool use_64bit = register_size (regcache->tdesc, 0) == 8; | |
564 | ||
565 | if (use_64bit) | |
566 | { | |
567 | uint64_t pc; | |
568 | ||
569 | collect_register_by_name (regcache, "rip", &pc); | |
570 | return (CORE_ADDR) pc; | |
571 | } | |
572 | else | |
573 | { | |
574 | uint32_t pc; | |
575 | ||
576 | collect_register_by_name (regcache, "eip", &pc); | |
577 | return (CORE_ADDR) pc; | |
578 | } | |
579 | } | |
580 | ||
581 | /* Implement win32_target_ops "set_pc" method. */ | |
582 | ||
583 | static void | |
584 | i386_win32_set_pc (struct regcache *regcache, CORE_ADDR pc) | |
585 | { | |
586 | bool use_64bit = register_size (regcache->tdesc, 0) == 8; | |
587 | ||
588 | if (use_64bit) | |
589 | { | |
590 | uint64_t newpc = pc; | |
591 | ||
592 | supply_register_by_name (regcache, "rip", &newpc); | |
593 | } | |
594 | else | |
595 | { | |
596 | uint32_t newpc = pc; | |
597 | ||
598 | supply_register_by_name (regcache, "eip", &newpc); | |
599 | } | |
600 | } | |
601 | ||
68070c10 | 602 | struct win32_target_ops the_low_target = { |
3aee8918 | 603 | i386_arch_setup, |
7d186bc0 | 604 | i386_win32_num_regs, |
34b34921 PA |
605 | i386_initial_stuff, |
606 | i386_get_thread_context, | |
a2abc7de | 607 | i386_prepare_to_resume, |
34b34921 PA |
608 | i386_thread_added, |
609 | i386_fetch_inferior_register, | |
610 | i386_store_inferior_register, | |
611 | i386_single_step, | |
912cf4ba PA |
612 | &i386_win32_breakpoint, |
613 | i386_win32_breakpoint_len, | |
e54e5929 | 614 | 1, |
d6225aff TT |
615 | i386_win32_get_pc, |
616 | i386_win32_set_pc, | |
802e8e6d | 617 | i386_supports_z_point_type, |
aa5ca48f DE |
618 | i386_insert_point, |
619 | i386_remove_point, | |
df7e5265 GB |
620 | x86_stopped_by_watchpoint, |
621 | x86_stopped_data_address | |
68070c10 | 622 | }; |