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b80864fb | 1 | /* Low level interface to Windows debugging, for gdbserver. |
6aba47ca | 2 | Copyright (C) 2006, 2007 Free Software Foundation, Inc. |
b80864fb DJ |
3 | |
4 | Contributed by Leo Zayas. Based on "win32-nat.c" from GDB. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
21 | Boston, MA 02110-1301, USA. */ | |
22 | ||
23 | #include "server.h" | |
24 | #include "regcache.h" | |
25 | #include "gdb/signals.h" | |
26 | ||
27 | #include <windows.h> | |
28 | #include <imagehlp.h> | |
29 | #include <psapi.h> | |
30 | #include <sys/param.h> | |
31 | #include <malloc.h> | |
32 | #include <process.h> | |
33 | ||
34 | #ifndef USE_WIN32API | |
35 | #include <sys/cygwin.h> | |
36 | #endif | |
37 | ||
38 | #define LOG 0 | |
39 | ||
40 | #define OUTMSG(X) do { printf X; fflush (stdout); } while (0) | |
41 | #if LOG | |
42 | #define OUTMSG2(X) do { printf X; fflush (stdout); } while (0) | |
43 | #else | |
44 | #define OUTMSG2(X) | |
45 | #endif | |
46 | ||
b80864fb DJ |
47 | int using_threads = 1; |
48 | ||
49 | /* Globals. */ | |
50 | static HANDLE current_process_handle = NULL; | |
51 | static DWORD current_process_id = 0; | |
52 | static enum target_signal last_sig = TARGET_SIGNAL_0; | |
53 | ||
54 | /* The current debug event from WaitForDebugEvent. */ | |
55 | static DEBUG_EVENT current_event; | |
56 | ||
57 | static int debug_registers_changed = 0; | |
58 | static int debug_registers_used = 0; | |
59 | static unsigned dr[8]; | |
60 | ||
61 | typedef BOOL winapi_DebugActiveProcessStop (DWORD dwProcessId); | |
62 | typedef BOOL winapi_DebugSetProcessKillOnExit (BOOL KillOnExit); | |
63 | ||
64 | #define FLAG_TRACE_BIT 0x100 | |
65 | #define CONTEXT_DEBUGGER (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
66 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ | |
67 | | CONTEXT_EXTENDED_REGISTERS | |
68 | ||
69 | /* Thread information structure used to track extra information about | |
70 | each thread. */ | |
41093d81 | 71 | typedef struct win32_thread_info |
b80864fb DJ |
72 | { |
73 | DWORD tid; | |
74 | HANDLE h; | |
75 | int suspend_count; | |
76 | CONTEXT context; | |
41093d81 | 77 | } win32_thread_info; |
b80864fb DJ |
78 | static DWORD main_thread_id = 0; |
79 | ||
80 | /* Get the thread ID from the current selected inferior (the current | |
81 | thread). */ | |
82 | static DWORD | |
83 | current_inferior_tid (void) | |
84 | { | |
41093d81 | 85 | win32_thread_info *th = inferior_target_data (current_inferior); |
b80864fb DJ |
86 | return th->tid; |
87 | } | |
88 | ||
89 | /* Find a thread record given a thread id. If GET_CONTEXT is set then | |
90 | also retrieve the context for this thread. */ | |
41093d81 | 91 | static win32_thread_info * |
b80864fb DJ |
92 | thread_rec (DWORD id, int get_context) |
93 | { | |
94 | struct thread_info *thread; | |
41093d81 | 95 | win32_thread_info *th; |
b80864fb DJ |
96 | |
97 | thread = (struct thread_info *) find_inferior_id (&all_threads, id); | |
98 | if (thread == NULL) | |
99 | return NULL; | |
100 | ||
101 | th = inferior_target_data (thread); | |
102 | if (!th->suspend_count && get_context) | |
103 | { | |
104 | if (get_context > 0 && id != current_event.dwThreadId) | |
105 | th->suspend_count = SuspendThread (th->h) + 1; | |
106 | else if (get_context < 0) | |
107 | th->suspend_count = -1; | |
108 | ||
109 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
110 | ||
111 | GetThreadContext (th->h, &th->context); | |
112 | ||
113 | if (id == current_event.dwThreadId) | |
114 | { | |
115 | /* Copy dr values from that thread. */ | |
116 | dr[0] = th->context.Dr0; | |
117 | dr[1] = th->context.Dr1; | |
118 | dr[2] = th->context.Dr2; | |
119 | dr[3] = th->context.Dr3; | |
120 | dr[6] = th->context.Dr6; | |
121 | dr[7] = th->context.Dr7; | |
122 | } | |
123 | } | |
124 | ||
125 | return th; | |
126 | } | |
127 | ||
128 | /* Add a thread to the thread list. */ | |
41093d81 | 129 | static win32_thread_info * |
b80864fb DJ |
130 | child_add_thread (DWORD tid, HANDLE h) |
131 | { | |
41093d81 | 132 | win32_thread_info *th; |
b80864fb DJ |
133 | |
134 | if ((th = thread_rec (tid, FALSE))) | |
135 | return th; | |
136 | ||
41093d81 | 137 | th = (win32_thread_info *) malloc (sizeof (*th)); |
b80864fb DJ |
138 | memset (th, 0, sizeof (*th)); |
139 | th->tid = tid; | |
140 | th->h = h; | |
141 | ||
142 | add_thread (tid, th, (unsigned int) tid); | |
143 | set_inferior_regcache_data ((struct thread_info *) | |
144 | find_inferior_id (&all_threads, tid), | |
145 | new_register_cache ()); | |
146 | ||
147 | /* Set the debug registers for the new thread if they are used. */ | |
148 | if (debug_registers_used) | |
149 | { | |
150 | /* Only change the value of the debug registers. */ | |
151 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
152 | ||
153 | GetThreadContext (th->h, &th->context); | |
154 | ||
155 | th->context.Dr0 = dr[0]; | |
156 | th->context.Dr1 = dr[1]; | |
157 | th->context.Dr2 = dr[2]; | |
158 | th->context.Dr3 = dr[3]; | |
159 | /* th->context.Dr6 = dr[6]; | |
160 | FIXME: should we set dr6 also ?? */ | |
161 | th->context.Dr7 = dr[7]; | |
162 | SetThreadContext (th->h, &th->context); | |
163 | th->context.ContextFlags = 0; | |
164 | } | |
165 | ||
166 | return th; | |
167 | } | |
168 | ||
169 | /* Delete a thread from the list of threads. */ | |
170 | static void | |
171 | delete_thread_info (struct inferior_list_entry *thread) | |
172 | { | |
41093d81 | 173 | win32_thread_info *th = inferior_target_data ((struct thread_info *) thread); |
b80864fb DJ |
174 | |
175 | remove_thread ((struct thread_info *) thread); | |
176 | CloseHandle (th->h); | |
177 | free (th); | |
178 | } | |
179 | ||
180 | /* Delete a thread from the list of threads. */ | |
181 | static void | |
182 | child_delete_thread (DWORD id) | |
183 | { | |
184 | struct inferior_list_entry *thread; | |
185 | ||
186 | /* If the last thread is exiting, just return. */ | |
187 | if (all_threads.head == all_threads.tail) | |
188 | return; | |
189 | ||
190 | thread = find_inferior_id (&all_threads, id); | |
191 | if (thread == NULL) | |
192 | return; | |
193 | ||
194 | delete_thread_info (thread); | |
195 | } | |
196 | ||
197 | /* Transfer memory from/to the debugged process. */ | |
198 | static int | |
199 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
200 | int write, struct target_ops *target) | |
201 | { | |
202 | SIZE_T done; | |
203 | long addr = (long) memaddr; | |
204 | ||
205 | if (write) | |
206 | { | |
207 | WriteProcessMemory (current_process_handle, (LPVOID) addr, | |
208 | (LPCVOID) our, len, &done); | |
209 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); | |
210 | } | |
211 | else | |
212 | { | |
213 | ReadProcessMemory (current_process_handle, (LPCVOID) addr, (LPVOID) our, | |
214 | len, &done); | |
215 | } | |
216 | return done; | |
217 | } | |
218 | ||
219 | /* Generally, what has the program done? */ | |
220 | enum target_waitkind | |
221 | { | |
222 | /* The program has exited. The exit status is in value.integer. */ | |
223 | TARGET_WAITKIND_EXITED, | |
224 | ||
225 | /* The program has stopped with a signal. Which signal is in | |
226 | value.sig. */ | |
227 | TARGET_WAITKIND_STOPPED, | |
228 | ||
229 | /* The program is letting us know that it dynamically loaded something | |
230 | (e.g. it called load(2) on AIX). */ | |
231 | TARGET_WAITKIND_LOADED, | |
232 | ||
233 | /* The program has exec'ed a new executable file. The new file's | |
234 | pathname is pointed to by value.execd_pathname. */ | |
235 | ||
236 | TARGET_WAITKIND_EXECD, | |
237 | ||
238 | /* Nothing happened, but we stopped anyway. This perhaps should be handled | |
239 | within target_wait, but I'm not sure target_wait should be resuming the | |
240 | inferior. */ | |
241 | TARGET_WAITKIND_SPURIOUS, | |
242 | }; | |
243 | ||
244 | struct target_waitstatus | |
245 | { | |
246 | enum target_waitkind kind; | |
247 | ||
248 | /* Forked child pid, execd pathname, exit status or signal number. */ | |
249 | union | |
250 | { | |
251 | int integer; | |
252 | enum target_signal sig; | |
253 | int related_pid; | |
254 | char *execd_pathname; | |
255 | int syscall_id; | |
256 | } | |
257 | value; | |
258 | }; | |
259 | ||
260 | #define NUM_REGS 41 | |
261 | #define FCS_REGNUM 27 | |
262 | #define FOP_REGNUM 31 | |
263 | ||
264 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) | |
265 | static const int mappings[] = { | |
266 | context_offset (Eax), | |
267 | context_offset (Ecx), | |
268 | context_offset (Edx), | |
269 | context_offset (Ebx), | |
270 | context_offset (Esp), | |
271 | context_offset (Ebp), | |
272 | context_offset (Esi), | |
273 | context_offset (Edi), | |
274 | context_offset (Eip), | |
275 | context_offset (EFlags), | |
276 | context_offset (SegCs), | |
277 | context_offset (SegSs), | |
278 | context_offset (SegDs), | |
279 | context_offset (SegEs), | |
280 | context_offset (SegFs), | |
281 | context_offset (SegGs), | |
282 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
283 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
284 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
285 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
286 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
287 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
288 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
289 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
290 | context_offset (FloatSave.ControlWord), | |
291 | context_offset (FloatSave.StatusWord), | |
292 | context_offset (FloatSave.TagWord), | |
293 | context_offset (FloatSave.ErrorSelector), | |
294 | context_offset (FloatSave.ErrorOffset), | |
295 | context_offset (FloatSave.DataSelector), | |
296 | context_offset (FloatSave.DataOffset), | |
297 | context_offset (FloatSave.ErrorSelector), | |
298 | /* XMM0-7 */ | |
299 | context_offset (ExtendedRegisters[10 * 16]), | |
300 | context_offset (ExtendedRegisters[11 * 16]), | |
301 | context_offset (ExtendedRegisters[12 * 16]), | |
302 | context_offset (ExtendedRegisters[13 * 16]), | |
303 | context_offset (ExtendedRegisters[14 * 16]), | |
304 | context_offset (ExtendedRegisters[15 * 16]), | |
305 | context_offset (ExtendedRegisters[16 * 16]), | |
306 | context_offset (ExtendedRegisters[17 * 16]), | |
307 | /* MXCSR */ | |
308 | context_offset (ExtendedRegisters[24]) | |
309 | }; | |
310 | ||
311 | #undef context_offset | |
312 | ||
313 | /* Clear out any old thread list and reintialize it to a pristine | |
314 | state. */ | |
315 | static void | |
316 | child_init_thread_list (void) | |
317 | { | |
318 | for_each_inferior (&all_threads, delete_thread_info); | |
319 | } | |
320 | ||
321 | static void | |
322 | do_initial_child_stuff (DWORD pid) | |
323 | { | |
324 | int i; | |
325 | ||
326 | last_sig = TARGET_SIGNAL_0; | |
327 | ||
328 | debug_registers_changed = 0; | |
329 | debug_registers_used = 0; | |
330 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) | |
331 | dr[i] = 0; | |
332 | memset (¤t_event, 0, sizeof (current_event)); | |
333 | ||
334 | child_init_thread_list (); | |
335 | } | |
336 | ||
337 | /* Resume all artificially suspended threads if we are continuing | |
338 | execution. */ | |
339 | static int | |
340 | continue_one_thread (struct inferior_list_entry *this_thread, void *id_ptr) | |
341 | { | |
342 | struct thread_info *thread = (struct thread_info *) this_thread; | |
343 | int thread_id = * (int *) id_ptr; | |
41093d81 | 344 | win32_thread_info *th = inferior_target_data (thread); |
b80864fb DJ |
345 | int i; |
346 | ||
347 | if ((thread_id == -1 || thread_id == th->tid) | |
348 | && th->suspend_count) | |
349 | { | |
350 | for (i = 0; i < th->suspend_count; i++) | |
351 | (void) ResumeThread (th->h); | |
352 | th->suspend_count = 0; | |
353 | if (debug_registers_changed) | |
354 | { | |
355 | /* Only change the value of the debug registers. */ | |
356 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
357 | th->context.Dr0 = dr[0]; | |
358 | th->context.Dr1 = dr[1]; | |
359 | th->context.Dr2 = dr[2]; | |
360 | th->context.Dr3 = dr[3]; | |
361 | /* th->context.Dr6 = dr[6]; | |
362 | FIXME: should we set dr6 also ?? */ | |
363 | th->context.Dr7 = dr[7]; | |
364 | SetThreadContext (th->h, &th->context); | |
365 | th->context.ContextFlags = 0; | |
366 | } | |
367 | } | |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
372 | static BOOL | |
373 | child_continue (DWORD continue_status, int thread_id) | |
374 | { | |
375 | BOOL res; | |
376 | ||
377 | res = ContinueDebugEvent (current_event.dwProcessId, | |
378 | current_event.dwThreadId, continue_status); | |
379 | continue_status = 0; | |
380 | if (res) | |
381 | find_inferior (&all_threads, continue_one_thread, &thread_id); | |
382 | ||
383 | debug_registers_changed = 0; | |
384 | return res; | |
385 | } | |
386 | ||
387 | /* Fetch register(s) from gdbserver regcache data. */ | |
388 | static void | |
41093d81 | 389 | do_child_fetch_inferior_registers (win32_thread_info *th, int r) |
b80864fb DJ |
390 | { |
391 | char *context_offset = ((char *) &th->context) + mappings[r]; | |
392 | long l; | |
393 | if (r == FCS_REGNUM) | |
394 | { | |
395 | l = *((long *) context_offset) & 0xffff; | |
396 | supply_register (r, (char *) &l); | |
397 | } | |
398 | else if (r == FOP_REGNUM) | |
399 | { | |
400 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); | |
401 | supply_register (r, (char *) &l); | |
402 | } | |
403 | else | |
404 | supply_register (r, context_offset); | |
405 | } | |
406 | ||
407 | /* Fetch register(s) from the current thread context. */ | |
408 | static void | |
409 | child_fetch_inferior_registers (int r) | |
410 | { | |
411 | int regno; | |
41093d81 | 412 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
413 | if (r == -1 || r == 0 || r > NUM_REGS) |
414 | child_fetch_inferior_registers (NUM_REGS); | |
415 | else | |
416 | for (regno = 0; regno < r; regno++) | |
417 | do_child_fetch_inferior_registers (th, regno); | |
418 | } | |
419 | ||
420 | /* Get register from gdbserver regcache data. */ | |
421 | static void | |
41093d81 | 422 | do_child_store_inferior_registers (win32_thread_info *th, int r) |
b80864fb DJ |
423 | { |
424 | collect_register (r, ((char *) &th->context) + mappings[r]); | |
425 | } | |
426 | ||
427 | /* Store a new register value into the current thread context. We don't | |
428 | change the program's context until later, when we resume it. */ | |
429 | static void | |
430 | child_store_inferior_registers (int r) | |
431 | { | |
432 | int regno; | |
41093d81 | 433 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
434 | if (r == -1 || r == 0 || r > NUM_REGS) |
435 | child_store_inferior_registers (NUM_REGS); | |
436 | else | |
437 | for (regno = 0; regno < r; regno++) | |
438 | do_child_store_inferior_registers (th, regno); | |
439 | } | |
440 | ||
441 | /* Start a new process. | |
442 | PROGRAM is a path to the program to execute. | |
443 | ARGS is a standard NULL-terminated array of arguments, | |
444 | to be passed to the inferior as ``argv''. | |
445 | Returns the new PID on success, -1 on failure. Registers the new | |
446 | process with the process list. */ | |
447 | static int | |
448 | win32_create_inferior (char *program, char **program_args) | |
449 | { | |
450 | #ifndef USE_WIN32API | |
451 | char real_path[MAXPATHLEN]; | |
452 | char *orig_path, *new_path, *path_ptr; | |
453 | #endif | |
454 | char *winenv = NULL; | |
455 | STARTUPINFO si; | |
456 | PROCESS_INFORMATION pi; | |
457 | BOOL ret; | |
458 | DWORD flags; | |
459 | char *args; | |
460 | int argslen; | |
461 | int argc; | |
462 | ||
463 | if (!program) | |
464 | error ("No executable specified, specify executable to debug.\n"); | |
465 | ||
466 | memset (&si, 0, sizeof (si)); | |
467 | si.cb = sizeof (si); | |
468 | ||
469 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; | |
470 | ||
471 | #ifndef USE_WIN32API | |
472 | orig_path = NULL; | |
473 | path_ptr = getenv ("PATH"); | |
474 | if (path_ptr) | |
475 | { | |
476 | orig_path = alloca (strlen (path_ptr) + 1); | |
477 | new_path = alloca (cygwin_posix_to_win32_path_list_buf_size (path_ptr)); | |
478 | strcpy (orig_path, path_ptr); | |
479 | cygwin_posix_to_win32_path_list (path_ptr, new_path); | |
480 | setenv ("PATH", new_path, 1); | |
481 | } | |
482 | cygwin_conv_to_win32_path (program, real_path); | |
483 | program = real_path; | |
484 | #endif | |
485 | ||
486 | argslen = strlen (program) + 1; | |
487 | for (argc = 1; program_args[argc]; argc++) | |
488 | argslen += strlen (program_args[argc]) + 1; | |
489 | args = alloca (argslen); | |
490 | strcpy (args, program); | |
491 | for (argc = 1; program_args[argc]; argc++) | |
492 | { | |
493 | /* FIXME: Can we do better about quoting? How does Cygwin | |
494 | handle this? */ | |
495 | strcat (args, " "); | |
496 | strcat (args, program_args[argc]); | |
497 | } | |
498 | OUTMSG2 (("Command line is %s\n", args)); | |
499 | ||
500 | flags |= CREATE_NEW_PROCESS_GROUP; | |
501 | ||
502 | ret = CreateProcess (0, args, /* command line */ | |
503 | NULL, /* Security */ | |
504 | NULL, /* thread */ | |
505 | TRUE, /* inherit handles */ | |
506 | flags, /* start flags */ | |
507 | winenv, NULL, /* current directory */ | |
508 | &si, &pi); | |
509 | ||
510 | #ifndef USE_WIN32API | |
511 | if (orig_path) | |
512 | setenv ("PATH", orig_path, 1); | |
513 | #endif | |
514 | ||
515 | if (!ret) | |
516 | { | |
517 | error ("Error creating process %s, (error %d): %s\n", args, | |
518 | (int) GetLastError (), strerror (GetLastError ())); | |
519 | } | |
520 | else | |
521 | { | |
522 | OUTMSG2 (("Process created: %s\n", (char *) args)); | |
523 | } | |
524 | ||
525 | CloseHandle (pi.hThread); | |
526 | ||
527 | current_process_handle = pi.hProcess; | |
528 | current_process_id = pi.dwProcessId; | |
529 | ||
530 | do_initial_child_stuff (current_process_id); | |
531 | ||
532 | return current_process_id; | |
533 | } | |
534 | ||
535 | /* Attach to a running process. | |
536 | PID is the process ID to attach to, specified by the user | |
537 | or a higher layer. */ | |
538 | static int | |
539 | win32_attach (unsigned long pid) | |
540 | { | |
541 | int res = 0; | |
542 | HMODULE kernel32 = LoadLibrary ("KERNEL32.DLL"); | |
543 | winapi_DebugActiveProcessStop *DebugActiveProcessStop = NULL; | |
544 | winapi_DebugSetProcessKillOnExit *DebugSetProcessKillOnExit = NULL; | |
545 | ||
546 | DebugActiveProcessStop = | |
547 | (winapi_DebugActiveProcessStop *) GetProcAddress (kernel32, | |
548 | "DebugActiveProcessStop"); | |
549 | DebugSetProcessKillOnExit = | |
550 | (winapi_DebugSetProcessKillOnExit *) GetProcAddress (kernel32, | |
551 | "DebugSetProcessKillOnExit"); | |
552 | ||
553 | res = DebugActiveProcess (pid) ? 1 : 0; | |
554 | ||
555 | if (!res) | |
556 | error ("Attach to process failed."); | |
557 | ||
558 | if (DebugSetProcessKillOnExit != NULL) | |
559 | DebugSetProcessKillOnExit (FALSE); | |
560 | ||
561 | current_process_id = pid; | |
562 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); | |
563 | ||
564 | if (current_process_handle == NULL) | |
565 | { | |
566 | res = 0; | |
567 | if (DebugActiveProcessStop != NULL) | |
568 | DebugActiveProcessStop (current_process_id); | |
569 | } | |
570 | ||
571 | if (res) | |
572 | do_initial_child_stuff (pid); | |
573 | ||
574 | FreeLibrary (kernel32); | |
575 | ||
576 | return res; | |
577 | } | |
578 | ||
bce7165d PA |
579 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
580 | static void | |
581 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
582 | { | |
583 | #define READ_BUFFER_LEN 1024 | |
584 | CORE_ADDR addr; | |
585 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
586 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
587 | ||
588 | if (nbytes == 0) | |
589 | return; | |
590 | ||
591 | if (nbytes > READ_BUFFER_LEN) | |
592 | nbytes = READ_BUFFER_LEN; | |
593 | ||
594 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
595 | ||
596 | if (current_event.u.DebugString.fUnicode) | |
597 | { | |
598 | /* The event tells us how many bytes, not chars, even | |
599 | in Unicode. */ | |
600 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; | |
601 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
602 | return; | |
603 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
604 | } | |
605 | else | |
606 | { | |
607 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
608 | return; | |
609 | } | |
610 | ||
611 | if (strncmp (s, "cYg", 3) != 0) | |
612 | monitor_output (s); | |
613 | #undef READ_BUFFER_LEN | |
614 | } | |
615 | ||
b80864fb DJ |
616 | /* Kill all inferiors. */ |
617 | static void | |
618 | win32_kill (void) | |
619 | { | |
9d606399 DJ |
620 | if (current_process_handle == NULL) |
621 | return; | |
622 | ||
b80864fb DJ |
623 | TerminateProcess (current_process_handle, 0); |
624 | for (;;) | |
625 | { | |
626 | if (!child_continue (DBG_CONTINUE, -1)) | |
627 | break; | |
628 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
629 | break; | |
630 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
631 | break; | |
bce7165d PA |
632 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
633 | { | |
634 | struct target_waitstatus our_status = { 0 }; | |
635 | handle_output_debug_string (&our_status); | |
636 | } | |
b80864fb DJ |
637 | } |
638 | } | |
639 | ||
640 | /* Detach from all inferiors. */ | |
641 | static void | |
642 | win32_detach (void) | |
643 | { | |
644 | HMODULE kernel32 = LoadLibrary ("KERNEL32.DLL"); | |
645 | winapi_DebugActiveProcessStop *DebugActiveProcessStop = NULL; | |
646 | winapi_DebugSetProcessKillOnExit *DebugSetProcessKillOnExit = NULL; | |
647 | ||
648 | DebugActiveProcessStop = | |
649 | (winapi_DebugActiveProcessStop *) GetProcAddress (kernel32, | |
650 | "DebugActiveProcessStop"); | |
651 | DebugSetProcessKillOnExit = | |
652 | (winapi_DebugSetProcessKillOnExit *) GetProcAddress (kernel32, | |
653 | "DebugSetProcessKillOnExit"); | |
654 | ||
655 | if (DebugSetProcessKillOnExit != NULL) | |
656 | DebugSetProcessKillOnExit (FALSE); | |
657 | ||
658 | if (DebugActiveProcessStop != NULL) | |
659 | DebugActiveProcessStop (current_process_id); | |
660 | else | |
661 | win32_kill (); | |
662 | ||
663 | FreeLibrary (kernel32); | |
664 | } | |
665 | ||
666 | /* Return 1 iff the thread with thread ID TID is alive. */ | |
667 | static int | |
668 | win32_thread_alive (unsigned long tid) | |
669 | { | |
670 | int res; | |
671 | ||
672 | /* Our thread list is reliable; don't bother to poll target | |
673 | threads. */ | |
674 | if (find_inferior_id (&all_threads, tid) != NULL) | |
675 | res = 1; | |
676 | else | |
677 | res = 0; | |
678 | return res; | |
679 | } | |
680 | ||
681 | /* Resume the inferior process. RESUME_INFO describes how we want | |
682 | to resume. */ | |
683 | static void | |
684 | win32_resume (struct thread_resume *resume_info) | |
685 | { | |
686 | DWORD tid; | |
687 | enum target_signal sig; | |
688 | int step; | |
41093d81 | 689 | win32_thread_info *th; |
b80864fb DJ |
690 | DWORD continue_status = DBG_CONTINUE; |
691 | ||
692 | /* This handles the very limited set of resume packets that GDB can | |
693 | currently produce. */ | |
694 | ||
695 | if (resume_info[0].thread == -1) | |
696 | tid = -1; | |
697 | else if (resume_info[1].thread == -1 && !resume_info[1].leave_stopped) | |
698 | tid = -1; | |
699 | else | |
700 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
701 | the Windows resume code do the right thing for thread switching. */ | |
702 | tid = current_event.dwThreadId; | |
703 | ||
704 | if (resume_info[0].thread != -1) | |
705 | { | |
706 | sig = resume_info[0].sig; | |
707 | step = resume_info[0].step; | |
708 | } | |
709 | else | |
710 | { | |
711 | sig = 0; | |
712 | step = 0; | |
713 | } | |
714 | ||
715 | if (sig != TARGET_SIGNAL_0) | |
716 | { | |
717 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
718 | { | |
719 | OUTMSG (("Cannot continue with signal %d here.\n", sig)); | |
720 | } | |
721 | else if (sig == last_sig) | |
722 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
723 | else | |
724 | OUTMSG (("Can only continue with recieved signal %d.\n", last_sig)); | |
725 | } | |
726 | ||
727 | last_sig = TARGET_SIGNAL_0; | |
728 | ||
729 | /* Get context for the currently selected thread. */ | |
730 | th = thread_rec (current_event.dwThreadId, FALSE); | |
731 | if (th) | |
732 | { | |
733 | if (th->context.ContextFlags) | |
734 | { | |
735 | if (debug_registers_changed) | |
736 | { | |
737 | th->context.Dr0 = dr[0]; | |
738 | th->context.Dr1 = dr[1]; | |
739 | th->context.Dr2 = dr[2]; | |
740 | th->context.Dr3 = dr[3]; | |
741 | /* th->context.Dr6 = dr[6]; | |
742 | FIXME: should we set dr6 also ?? */ | |
743 | th->context.Dr7 = dr[7]; | |
744 | } | |
745 | ||
746 | /* Move register values from the inferior into the thread | |
747 | context structure. */ | |
748 | regcache_invalidate (); | |
749 | ||
750 | if (step) | |
751 | th->context.EFlags |= FLAG_TRACE_BIT; | |
752 | ||
753 | SetThreadContext (th->h, &th->context); | |
754 | th->context.ContextFlags = 0; | |
755 | } | |
756 | } | |
757 | ||
758 | /* Allow continuing with the same signal that interrupted us. | |
759 | Otherwise complain. */ | |
760 | ||
761 | child_continue (continue_status, tid); | |
762 | } | |
763 | ||
764 | static int | |
765 | handle_exception (struct target_waitstatus *ourstatus) | |
766 | { | |
41093d81 | 767 | win32_thread_info *th; |
b80864fb DJ |
768 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
769 | ||
770 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
771 | ||
772 | /* Record the context of the current thread. */ | |
773 | th = thread_rec (current_event.dwThreadId, -1); | |
774 | ||
775 | switch (code) | |
776 | { | |
777 | case EXCEPTION_ACCESS_VIOLATION: | |
778 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
779 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
780 | break; | |
781 | case STATUS_STACK_OVERFLOW: | |
782 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
783 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
784 | break; | |
785 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
786 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
787 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
788 | break; | |
789 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
790 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
791 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
792 | break; | |
793 | case STATUS_FLOAT_INEXACT_RESULT: | |
794 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
795 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
796 | break; | |
797 | case STATUS_FLOAT_INVALID_OPERATION: | |
798 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
799 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
800 | break; | |
801 | case STATUS_FLOAT_OVERFLOW: | |
802 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
803 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
804 | break; | |
805 | case STATUS_FLOAT_STACK_CHECK: | |
806 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
807 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
808 | break; | |
809 | case STATUS_FLOAT_UNDERFLOW: | |
810 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
811 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
812 | break; | |
813 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
814 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
815 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
816 | break; | |
817 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
818 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
819 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
820 | break; | |
821 | case STATUS_INTEGER_OVERFLOW: | |
822 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
823 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
824 | break; | |
825 | case EXCEPTION_BREAKPOINT: | |
826 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
827 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
828 | break; | |
829 | case DBG_CONTROL_C: | |
830 | OUTMSG2 (("DBG_CONTROL_C")); | |
831 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
832 | break; | |
833 | case DBG_CONTROL_BREAK: | |
834 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
835 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
836 | break; | |
837 | case EXCEPTION_SINGLE_STEP: | |
838 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
839 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
840 | break; | |
841 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
842 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
843 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
844 | break; | |
845 | case EXCEPTION_PRIV_INSTRUCTION: | |
846 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
847 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
848 | break; | |
849 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
850 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
851 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
852 | break; | |
853 | default: | |
854 | if (current_event.u.Exception.dwFirstChance) | |
855 | return 0; | |
856 | OUTMSG2 (("gdbserver: unknown target exception 0x%08lx at 0x%08lx", | |
857 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
858 | (DWORD) current_event.u.Exception.ExceptionRecord. | |
859 | ExceptionAddress)); | |
860 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
861 | break; | |
862 | } | |
863 | OUTMSG2 (("\n")); | |
864 | last_sig = ourstatus->value.sig; | |
865 | return 1; | |
866 | } | |
867 | ||
868 | /* Get the next event from the child. Return 1 if the event requires | |
869 | handling. */ | |
870 | static int | |
871 | get_child_debug_event (struct target_waitstatus *ourstatus) | |
872 | { | |
873 | BOOL debug_event; | |
874 | DWORD continue_status, event_code; | |
41093d81 PA |
875 | win32_thread_info *th = NULL; |
876 | static win32_thread_info dummy_thread_info; | |
b80864fb DJ |
877 | int retval = 0; |
878 | ||
879 | in: | |
880 | ||
881 | last_sig = TARGET_SIGNAL_0; | |
882 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
883 | ||
884 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) | |
885 | goto out; | |
886 | ||
887 | current_inferior = | |
888 | (struct thread_info *) find_inferior_id (&all_threads, | |
889 | current_event.dwThreadId); | |
890 | ||
891 | continue_status = DBG_CONTINUE; | |
892 | event_code = current_event.dwDebugEventCode; | |
893 | ||
894 | switch (event_code) | |
895 | { | |
896 | case CREATE_THREAD_DEBUG_EVENT: | |
897 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
898 | "for pid=%d tid=%x)\n", | |
899 | (unsigned) current_event.dwProcessId, | |
900 | (unsigned) current_event.dwThreadId)); | |
901 | ||
902 | /* Record the existence of this thread. */ | |
903 | th = child_add_thread (current_event.dwThreadId, | |
904 | current_event.u.CreateThread.hThread); | |
905 | ||
906 | retval = current_event.dwThreadId; | |
907 | break; | |
908 | ||
909 | case EXIT_THREAD_DEBUG_EVENT: | |
910 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
911 | "for pid=%d tid=%x\n", | |
912 | (unsigned) current_event.dwProcessId, | |
913 | (unsigned) current_event.dwThreadId)); | |
914 | child_delete_thread (current_event.dwThreadId); | |
915 | th = &dummy_thread_info; | |
916 | break; | |
917 | ||
918 | case CREATE_PROCESS_DEBUG_EVENT: | |
919 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
920 | "for pid=%d tid=%x\n", | |
921 | (unsigned) current_event.dwProcessId, | |
922 | (unsigned) current_event.dwThreadId)); | |
923 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
924 | ||
925 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
926 | main_thread_id = current_event.dwThreadId; | |
927 | ||
928 | ourstatus->kind = TARGET_WAITKIND_EXECD; | |
929 | ourstatus->value.execd_pathname = "Main executable"; | |
930 | ||
931 | /* Add the main thread. */ | |
932 | th = | |
933 | child_add_thread (main_thread_id, | |
934 | current_event.u.CreateProcessInfo.hThread); | |
935 | ||
936 | retval = ourstatus->value.related_pid = current_event.dwThreadId; | |
937 | break; | |
938 | ||
939 | case EXIT_PROCESS_DEBUG_EVENT: | |
940 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
941 | "for pid=%d tid=%x\n", | |
942 | (unsigned) current_event.dwProcessId, | |
943 | (unsigned) current_event.dwThreadId)); | |
944 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
945 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
946 | CloseHandle (current_process_handle); | |
9d606399 | 947 | current_process_handle = NULL; |
b80864fb DJ |
948 | retval = main_thread_id; |
949 | break; | |
950 | ||
951 | case LOAD_DLL_DEBUG_EVENT: | |
952 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
953 | "for pid=%d tid=%x\n", | |
954 | (unsigned) current_event.dwProcessId, | |
955 | (unsigned) current_event.dwThreadId)); | |
956 | CloseHandle (current_event.u.LoadDll.hFile); | |
957 | ||
958 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
959 | ourstatus->value.integer = 0; | |
960 | retval = main_thread_id; | |
961 | break; | |
962 | ||
963 | case UNLOAD_DLL_DEBUG_EVENT: | |
964 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
965 | "for pid=%d tid=%x\n", | |
966 | (unsigned) current_event.dwProcessId, | |
967 | (unsigned) current_event.dwThreadId)); | |
968 | break; | |
969 | ||
970 | case EXCEPTION_DEBUG_EVENT: | |
971 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
972 | "for pid=%d tid=%x\n", | |
973 | (unsigned) current_event.dwProcessId, | |
974 | (unsigned) current_event.dwThreadId)); | |
975 | retval = handle_exception (ourstatus); | |
976 | break; | |
977 | ||
978 | case OUTPUT_DEBUG_STRING_EVENT: | |
979 | /* A message from the kernel (or Cygwin). */ | |
980 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
981 | "for pid=%d tid=%x\n", | |
982 | (unsigned) current_event.dwProcessId, | |
983 | (unsigned) current_event.dwThreadId)); | |
bce7165d | 984 | handle_output_debug_string (ourstatus); |
b80864fb DJ |
985 | break; |
986 | ||
987 | default: | |
988 | OUTMSG2 (("gdbserver: kernel event unknown " | |
989 | "for pid=%d tid=%x code=%ld\n", | |
990 | (unsigned) current_event.dwProcessId, | |
991 | (unsigned) current_event.dwThreadId, | |
992 | current_event.dwDebugEventCode)); | |
993 | break; | |
994 | } | |
995 | ||
996 | current_inferior = | |
997 | (struct thread_info *) find_inferior_id (&all_threads, | |
998 | current_event.dwThreadId); | |
999 | ||
1000 | if (!retval || (event_code != EXCEPTION_DEBUG_EVENT && event_code != EXIT_PROCESS_DEBUG_EVENT)) | |
1001 | { | |
1002 | child_continue (continue_status, -1); | |
1003 | goto in; | |
1004 | } | |
1005 | ||
1006 | if (th == NULL) | |
1007 | thread_rec (current_event.dwThreadId, TRUE); | |
1008 | ||
1009 | out: | |
1010 | return retval; | |
1011 | } | |
1012 | ||
1013 | /* Wait for the inferior process to change state. | |
1014 | STATUS will be filled in with a response code to send to GDB. | |
1015 | Returns the signal which caused the process to stop. */ | |
1016 | static unsigned char | |
1017 | win32_wait (char *status) | |
1018 | { | |
1019 | struct target_waitstatus our_status; | |
1020 | ||
1021 | *status = 'T'; | |
1022 | ||
1023 | while (1) | |
1024 | { | |
1025 | get_child_debug_event (&our_status); | |
1026 | ||
1027 | if (our_status.kind == TARGET_WAITKIND_EXITED) | |
1028 | { | |
1029 | OUTMSG2 (("Child exited with retcode = %x\n", | |
1030 | our_status.value.integer)); | |
1031 | ||
1032 | *status = 'W'; | |
1033 | ||
1034 | child_fetch_inferior_registers (-1); | |
1035 | ||
1036 | return our_status.value.integer; | |
1037 | } | |
1038 | else if (our_status.kind == TARGET_WAITKIND_STOPPED) | |
1039 | { | |
1040 | OUTMSG2 (("Child Stopped with signal = %x \n", | |
1041 | WSTOPSIG (our_status.value.sig))); | |
1042 | ||
1043 | *status = 'T'; | |
1044 | ||
1045 | child_fetch_inferior_registers (-1); | |
1046 | ||
1047 | return our_status.value.sig; | |
1048 | } | |
1049 | else | |
1050 | OUTMSG (("Ignoring unknown internal event, %d\n", our_status.kind)); | |
1051 | ||
1052 | { | |
1053 | struct thread_resume resume; | |
1054 | resume.thread = -1; | |
1055 | resume.step = 0; | |
1056 | resume.sig = 0; | |
1057 | resume.leave_stopped = 0; | |
1058 | win32_resume (&resume); | |
1059 | } | |
1060 | } | |
1061 | } | |
1062 | ||
1063 | /* Fetch registers from the inferior process. | |
1064 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
1065 | static void | |
1066 | win32_fetch_inferior_registers (int regno) | |
1067 | { | |
1068 | child_fetch_inferior_registers (regno); | |
1069 | } | |
1070 | ||
1071 | /* Store registers to the inferior process. | |
1072 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
1073 | static void | |
1074 | win32_store_inferior_registers (int regno) | |
1075 | { | |
1076 | child_store_inferior_registers (regno); | |
1077 | } | |
1078 | ||
1079 | /* Read memory from the inferior process. This should generally be | |
1080 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1081 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
1082 | static int | |
1083 | win32_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) | |
1084 | { | |
1085 | return child_xfer_memory (memaddr, myaddr, len, 0, 0) != len; | |
1086 | } | |
1087 | ||
1088 | /* Write memory to the inferior process. This should generally be | |
1089 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1090 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1091 | Returns 0 on success and errno on failure. */ | |
1092 | static int | |
1093 | win32_write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, | |
1094 | int len) | |
1095 | { | |
1096 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1097 | } | |
1098 | ||
820f2bda PA |
1099 | static const char * |
1100 | win32_arch_string (void) | |
1101 | { | |
1102 | return "i386"; | |
1103 | } | |
1104 | ||
b80864fb DJ |
1105 | static struct target_ops win32_target_ops = { |
1106 | win32_create_inferior, | |
1107 | win32_attach, | |
1108 | win32_kill, | |
1109 | win32_detach, | |
1110 | win32_thread_alive, | |
1111 | win32_resume, | |
1112 | win32_wait, | |
1113 | win32_fetch_inferior_registers, | |
1114 | win32_store_inferior_registers, | |
1115 | win32_read_inferior_memory, | |
1116 | win32_write_inferior_memory, | |
820f2bda PA |
1117 | NULL, |
1118 | NULL, | |
1119 | NULL, | |
1120 | NULL, | |
1121 | NULL, | |
1122 | NULL, | |
1123 | NULL, | |
1124 | NULL, | |
1125 | NULL, | |
1126 | win32_arch_string | |
b80864fb DJ |
1127 | }; |
1128 | ||
1129 | /* Initialize the Win32 backend. */ | |
1130 | void | |
1131 | initialize_low (void) | |
1132 | { | |
1133 | set_target_ops (&win32_target_ops); | |
1134 | ||
1135 | init_registers (); | |
1136 | } |