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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 | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
b80864fb DJ |
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 | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
b80864fb DJ |
20 | |
21 | #include "server.h" | |
22 | #include "regcache.h" | |
23 | #include "gdb/signals.h" | |
ed50f18f PA |
24 | #include "mem-break.h" |
25 | #include "win32-low.h" | |
b80864fb DJ |
26 | |
27 | #include <windows.h> | |
ed50f18f | 28 | #include <winnt.h> |
b80864fb | 29 | #include <imagehlp.h> |
255e7678 | 30 | #include <tlhelp32.h> |
b80864fb DJ |
31 | #include <psapi.h> |
32 | #include <sys/param.h> | |
33 | #include <malloc.h> | |
34 | #include <process.h> | |
35 | ||
36 | #ifndef USE_WIN32API | |
37 | #include <sys/cygwin.h> | |
38 | #endif | |
39 | ||
40 | #define LOG 0 | |
41 | ||
42 | #define OUTMSG(X) do { printf X; fflush (stdout); } while (0) | |
43 | #if LOG | |
44 | #define OUTMSG2(X) do { printf X; fflush (stdout); } while (0) | |
45 | #else | |
ed50f18f PA |
46 | #define OUTMSG2(X) do ; while (0) |
47 | #endif | |
48 | ||
49 | #ifndef _T | |
50 | #define _T(x) TEXT (x) | |
51 | #endif | |
52 | ||
53 | #ifndef COUNTOF | |
54 | #define COUNTOF(STR) (sizeof (STR) / sizeof ((STR)[0])) | |
b80864fb DJ |
55 | #endif |
56 | ||
bf914831 PA |
57 | #ifdef _WIN32_WCE |
58 | # define GETPROCADDRESS(DLL, PROC) \ | |
59 | ((winapi_ ## PROC) GetProcAddress (DLL, TEXT (#PROC))) | |
60 | #else | |
61 | # define GETPROCADDRESS(DLL, PROC) \ | |
62 | ((winapi_ ## PROC) GetProcAddress (DLL, #PROC)) | |
63 | #endif | |
64 | ||
b80864fb DJ |
65 | int using_threads = 1; |
66 | ||
67 | /* Globals. */ | |
68 | static HANDLE current_process_handle = NULL; | |
69 | static DWORD current_process_id = 0; | |
70 | static enum target_signal last_sig = TARGET_SIGNAL_0; | |
71 | ||
72 | /* The current debug event from WaitForDebugEvent. */ | |
73 | static DEBUG_EVENT current_event; | |
74 | ||
4d5d1aaa PA |
75 | /* Non zero if an interrupt request is to be satisfied by suspending |
76 | all threads. */ | |
77 | static int soft_interrupt_requested = 0; | |
78 | ||
79 | /* Non zero if the inferior is stopped in a simulated breakpoint done | |
80 | by suspending all the threads. */ | |
81 | static int faked_breakpoint = 0; | |
82 | ||
ed50f18f | 83 | #define NUM_REGS (the_low_target.num_regs) |
b80864fb | 84 | |
bf914831 PA |
85 | typedef BOOL WINAPI (*winapi_DebugActiveProcessStop) (DWORD dwProcessId); |
86 | typedef BOOL WINAPI (*winapi_DebugSetProcessKillOnExit) (BOOL KillOnExit); | |
7390519e PA |
87 | typedef BOOL WINAPI (*winapi_DebugBreakProcess) (HANDLE); |
88 | typedef BOOL WINAPI (*winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD); | |
b80864fb | 89 | |
b80864fb DJ |
90 | static DWORD main_thread_id = 0; |
91 | ||
34b34921 PA |
92 | static void win32_resume (struct thread_resume *resume_info); |
93 | ||
b80864fb DJ |
94 | /* Get the thread ID from the current selected inferior (the current |
95 | thread). */ | |
96 | static DWORD | |
97 | current_inferior_tid (void) | |
98 | { | |
41093d81 | 99 | win32_thread_info *th = inferior_target_data (current_inferior); |
b80864fb DJ |
100 | return th->tid; |
101 | } | |
102 | ||
9c6c8194 PA |
103 | /* Get the thread context of the thread associated with TH. */ |
104 | ||
105 | static void | |
106 | win32_get_thread_context (win32_thread_info *th) | |
107 | { | |
108 | memset (&th->context, 0, sizeof (CONTEXT)); | |
109 | (*the_low_target.get_thread_context) (th, ¤t_event); | |
110 | #ifdef _WIN32_WCE | |
111 | memcpy (&th->base_context, &th->context, sizeof (CONTEXT)); | |
112 | #endif | |
113 | } | |
114 | ||
115 | /* Set the thread context of the thread associated with TH. */ | |
116 | ||
117 | static void | |
118 | win32_set_thread_context (win32_thread_info *th) | |
119 | { | |
120 | #ifdef _WIN32_WCE | |
121 | /* Calling SuspendThread on a thread that is running kernel code | |
122 | will report that the suspending was successful, but in fact, that | |
123 | will often not be true. In those cases, the context returned by | |
124 | GetThreadContext will not be correct by the time the thread | |
125 | stops, hence we can't set that context back into the thread when | |
126 | resuming - it will most likelly crash the inferior. | |
127 | Unfortunately, there is no way to know when the thread will | |
128 | really stop. To work around it, we'll only write the context | |
129 | back to the thread when either the user or GDB explicitly change | |
130 | it between stopping and resuming. */ | |
131 | if (memcmp (&th->context, &th->base_context, sizeof (CONTEXT)) != 0) | |
132 | #endif | |
133 | (*the_low_target.set_thread_context) (th, ¤t_event); | |
134 | } | |
135 | ||
b80864fb DJ |
136 | /* Find a thread record given a thread id. If GET_CONTEXT is set then |
137 | also retrieve the context for this thread. */ | |
41093d81 | 138 | static win32_thread_info * |
b80864fb DJ |
139 | thread_rec (DWORD id, int get_context) |
140 | { | |
141 | struct thread_info *thread; | |
41093d81 | 142 | win32_thread_info *th; |
b80864fb DJ |
143 | |
144 | thread = (struct thread_info *) find_inferior_id (&all_threads, id); | |
145 | if (thread == NULL) | |
146 | return NULL; | |
147 | ||
148 | th = inferior_target_data (thread); | |
c436e841 | 149 | if (get_context && th->context.ContextFlags == 0) |
b80864fb | 150 | { |
c436e841 PA |
151 | if (!th->suspended) |
152 | { | |
153 | if (SuspendThread (th->h) == (DWORD) -1) | |
154 | { | |
155 | DWORD err = GetLastError (); | |
156 | OUTMSG (("warning: SuspendThread failed in thread_rec, " | |
157 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
158 | } | |
159 | else | |
160 | th->suspended = 1; | |
161 | } | |
b80864fb | 162 | |
9c6c8194 | 163 | win32_get_thread_context (th); |
b80864fb DJ |
164 | } |
165 | ||
166 | return th; | |
167 | } | |
168 | ||
169 | /* Add a thread to the thread list. */ | |
41093d81 | 170 | static win32_thread_info * |
b80864fb DJ |
171 | child_add_thread (DWORD tid, HANDLE h) |
172 | { | |
41093d81 | 173 | win32_thread_info *th; |
b80864fb DJ |
174 | |
175 | if ((th = thread_rec (tid, FALSE))) | |
176 | return th; | |
177 | ||
4d5d1aaa | 178 | th = calloc (1, sizeof (*th)); |
b80864fb DJ |
179 | th->tid = tid; |
180 | th->h = h; | |
181 | ||
182 | add_thread (tid, th, (unsigned int) tid); | |
183 | set_inferior_regcache_data ((struct thread_info *) | |
184 | find_inferior_id (&all_threads, tid), | |
185 | new_register_cache ()); | |
186 | ||
34b34921 PA |
187 | if (the_low_target.thread_added != NULL) |
188 | (*the_low_target.thread_added) (th); | |
b80864fb DJ |
189 | |
190 | return th; | |
191 | } | |
192 | ||
193 | /* Delete a thread from the list of threads. */ | |
194 | static void | |
195 | delete_thread_info (struct inferior_list_entry *thread) | |
196 | { | |
41093d81 | 197 | win32_thread_info *th = inferior_target_data ((struct thread_info *) thread); |
b80864fb DJ |
198 | |
199 | remove_thread ((struct thread_info *) thread); | |
200 | CloseHandle (th->h); | |
201 | free (th); | |
202 | } | |
203 | ||
204 | /* Delete a thread from the list of threads. */ | |
205 | static void | |
206 | child_delete_thread (DWORD id) | |
207 | { | |
208 | struct inferior_list_entry *thread; | |
209 | ||
210 | /* If the last thread is exiting, just return. */ | |
211 | if (all_threads.head == all_threads.tail) | |
212 | return; | |
213 | ||
214 | thread = find_inferior_id (&all_threads, id); | |
215 | if (thread == NULL) | |
216 | return; | |
217 | ||
218 | delete_thread_info (thread); | |
219 | } | |
220 | ||
221 | /* Transfer memory from/to the debugged process. */ | |
222 | static int | |
223 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
224 | int write, struct target_ops *target) | |
225 | { | |
226 | SIZE_T done; | |
227 | long addr = (long) memaddr; | |
228 | ||
229 | if (write) | |
230 | { | |
231 | WriteProcessMemory (current_process_handle, (LPVOID) addr, | |
232 | (LPCVOID) our, len, &done); | |
233 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); | |
234 | } | |
235 | else | |
236 | { | |
237 | ReadProcessMemory (current_process_handle, (LPCVOID) addr, (LPVOID) our, | |
238 | len, &done); | |
239 | } | |
240 | return done; | |
241 | } | |
242 | ||
243 | /* Generally, what has the program done? */ | |
244 | enum target_waitkind | |
245 | { | |
246 | /* The program has exited. The exit status is in value.integer. */ | |
247 | TARGET_WAITKIND_EXITED, | |
248 | ||
249 | /* The program has stopped with a signal. Which signal is in | |
250 | value.sig. */ | |
251 | TARGET_WAITKIND_STOPPED, | |
252 | ||
255e7678 DJ |
253 | /* The program is letting us know that it dynamically loaded |
254 | or unloaded something. */ | |
b80864fb DJ |
255 | TARGET_WAITKIND_LOADED, |
256 | ||
257 | /* The program has exec'ed a new executable file. The new file's | |
258 | pathname is pointed to by value.execd_pathname. */ | |
b80864fb DJ |
259 | TARGET_WAITKIND_EXECD, |
260 | ||
7390519e PA |
261 | /* Nothing interesting happened, but we stopped anyway. We take the |
262 | chance to check if GDB requested an interrupt. */ | |
b80864fb DJ |
263 | TARGET_WAITKIND_SPURIOUS, |
264 | }; | |
265 | ||
266 | struct target_waitstatus | |
267 | { | |
268 | enum target_waitkind kind; | |
269 | ||
270 | /* Forked child pid, execd pathname, exit status or signal number. */ | |
271 | union | |
272 | { | |
273 | int integer; | |
274 | enum target_signal sig; | |
275 | int related_pid; | |
276 | char *execd_pathname; | |
277 | int syscall_id; | |
278 | } | |
279 | value; | |
280 | }; | |
281 | ||
ed50f18f | 282 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
283 | state. */ |
284 | static void | |
285 | child_init_thread_list (void) | |
286 | { | |
287 | for_each_inferior (&all_threads, delete_thread_info); | |
288 | } | |
289 | ||
290 | static void | |
291 | do_initial_child_stuff (DWORD pid) | |
292 | { | |
b80864fb DJ |
293 | last_sig = TARGET_SIGNAL_0; |
294 | ||
b80864fb DJ |
295 | memset (¤t_event, 0, sizeof (current_event)); |
296 | ||
297 | child_init_thread_list (); | |
ed50f18f PA |
298 | |
299 | if (the_low_target.initial_stuff != NULL) | |
300 | (*the_low_target.initial_stuff) (); | |
b80864fb DJ |
301 | } |
302 | ||
303 | /* Resume all artificially suspended threads if we are continuing | |
304 | execution. */ | |
305 | static int | |
306 | continue_one_thread (struct inferior_list_entry *this_thread, void *id_ptr) | |
307 | { | |
308 | struct thread_info *thread = (struct thread_info *) this_thread; | |
309 | int thread_id = * (int *) id_ptr; | |
41093d81 | 310 | win32_thread_info *th = inferior_target_data (thread); |
b80864fb DJ |
311 | |
312 | if ((thread_id == -1 || thread_id == th->tid) | |
c436e841 | 313 | && th->suspended) |
b80864fb | 314 | { |
34b34921 | 315 | if (th->context.ContextFlags) |
b80864fb | 316 | { |
9c6c8194 | 317 | win32_set_thread_context (th); |
b80864fb DJ |
318 | th->context.ContextFlags = 0; |
319 | } | |
34b34921 | 320 | |
c436e841 PA |
321 | if (ResumeThread (th->h) == (DWORD) -1) |
322 | { | |
323 | DWORD err = GetLastError (); | |
324 | OUTMSG (("warning: ResumeThread failed in continue_one_thread, " | |
325 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
326 | } | |
327 | th->suspended = 0; | |
b80864fb DJ |
328 | } |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
333 | static BOOL | |
334 | child_continue (DWORD continue_status, int thread_id) | |
335 | { | |
4d5d1aaa PA |
336 | /* The inferior will only continue after the ContinueDebugEvent |
337 | call. */ | |
338 | find_inferior (&all_threads, continue_one_thread, &thread_id); | |
339 | faked_breakpoint = 0; | |
b80864fb | 340 | |
4d5d1aaa PA |
341 | if (!ContinueDebugEvent (current_event.dwProcessId, |
342 | current_event.dwThreadId, | |
343 | continue_status)) | |
344 | return FALSE; | |
b80864fb | 345 | |
4d5d1aaa | 346 | return TRUE; |
b80864fb DJ |
347 | } |
348 | ||
b80864fb DJ |
349 | /* Fetch register(s) from the current thread context. */ |
350 | static void | |
351 | child_fetch_inferior_registers (int r) | |
352 | { | |
353 | int regno; | |
41093d81 | 354 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
355 | if (r == -1 || r == 0 || r > NUM_REGS) |
356 | child_fetch_inferior_registers (NUM_REGS); | |
357 | else | |
358 | for (regno = 0; regno < r; regno++) | |
34b34921 | 359 | (*the_low_target.fetch_inferior_register) (th, regno); |
b80864fb DJ |
360 | } |
361 | ||
362 | /* Store a new register value into the current thread context. We don't | |
363 | change the program's context until later, when we resume it. */ | |
364 | static void | |
365 | child_store_inferior_registers (int r) | |
366 | { | |
367 | int regno; | |
41093d81 | 368 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
369 | if (r == -1 || r == 0 || r > NUM_REGS) |
370 | child_store_inferior_registers (NUM_REGS); | |
371 | else | |
372 | for (regno = 0; regno < r; regno++) | |
34b34921 | 373 | (*the_low_target.store_inferior_register) (th, regno); |
b80864fb DJ |
374 | } |
375 | ||
ed50f18f PA |
376 | /* Map the Windows error number in ERROR to a locale-dependent error |
377 | message string and return a pointer to it. Typically, the values | |
378 | for ERROR come from GetLastError. | |
379 | ||
380 | The string pointed to shall not be modified by the application, | |
381 | but may be overwritten by a subsequent call to strwinerror | |
382 | ||
383 | The strwinerror function does not change the current setting | |
384 | of GetLastError. */ | |
385 | ||
386 | char * | |
387 | strwinerror (DWORD error) | |
388 | { | |
389 | static char buf[1024]; | |
390 | TCHAR *msgbuf; | |
391 | DWORD lasterr = GetLastError (); | |
392 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
393 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
394 | NULL, | |
395 | error, | |
396 | 0, /* Default language */ | |
397 | (LPVOID)&msgbuf, | |
398 | 0, | |
399 | NULL); | |
400 | if (chars != 0) | |
401 | { | |
402 | /* If there is an \r\n appended, zap it. */ | |
403 | if (chars >= 2 | |
404 | && msgbuf[chars - 2] == '\r' | |
405 | && msgbuf[chars - 1] == '\n') | |
406 | { | |
407 | chars -= 2; | |
408 | msgbuf[chars] = 0; | |
409 | } | |
410 | ||
411 | if (chars > ((COUNTOF (buf)) - 1)) | |
412 | { | |
413 | chars = COUNTOF (buf) - 1; | |
414 | msgbuf [chars] = 0; | |
415 | } | |
416 | ||
417 | #ifdef UNICODE | |
418 | wcstombs (buf, msgbuf, chars + 1); | |
419 | #else | |
420 | strncpy (buf, msgbuf, chars + 1); | |
421 | #endif | |
422 | LocalFree (msgbuf); | |
423 | } | |
424 | else | |
425 | sprintf (buf, "unknown win32 error (%ld)", error); | |
426 | ||
427 | SetLastError (lasterr); | |
428 | return buf; | |
429 | } | |
430 | ||
aec18585 PA |
431 | static BOOL |
432 | create_process (const char *program, char *args, | |
433 | DWORD flags, PROCESS_INFORMATION *pi) | |
434 | { | |
435 | BOOL ret; | |
436 | ||
437 | #ifdef _WIN32_WCE | |
438 | wchar_t *p, *wprogram, *wargs; | |
439 | size_t argslen; | |
440 | ||
441 | wprogram = alloca ((strlen (program) + 1) * sizeof (wchar_t)); | |
442 | mbstowcs (wprogram, program, strlen (program) + 1); | |
443 | ||
444 | for (p = wprogram; *p; ++p) | |
445 | if (L'/' == *p) | |
446 | *p = L'\\'; | |
447 | ||
448 | argslen = strlen (args); | |
449 | wargs = alloca ((argslen + 1) * sizeof (wchar_t)); | |
450 | mbstowcs (wargs, args, argslen + 1); | |
451 | ||
452 | ret = CreateProcessW (wprogram, /* image name */ | |
453 | wargs, /* command line */ | |
454 | NULL, /* security, not supported */ | |
455 | NULL, /* thread, not supported */ | |
456 | FALSE, /* inherit handles, not supported */ | |
457 | flags, /* start flags */ | |
458 | NULL, /* environment, not supported */ | |
459 | NULL, /* current directory, not supported */ | |
460 | NULL, /* start info, not supported */ | |
461 | pi); /* proc info */ | |
462 | #else | |
463 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; | |
464 | ||
465 | ret = CreateProcessA (program, /* image name */ | |
466 | args, /* command line */ | |
467 | NULL, /* security */ | |
468 | NULL, /* thread */ | |
469 | TRUE, /* inherit handles */ | |
470 | flags, /* start flags */ | |
471 | NULL, /* environment */ | |
472 | NULL, /* current directory */ | |
473 | &si, /* start info */ | |
474 | pi); /* proc info */ | |
475 | #endif | |
476 | ||
477 | return ret; | |
478 | } | |
479 | ||
b80864fb DJ |
480 | /* Start a new process. |
481 | PROGRAM is a path to the program to execute. | |
482 | ARGS is a standard NULL-terminated array of arguments, | |
483 | to be passed to the inferior as ``argv''. | |
484 | Returns the new PID on success, -1 on failure. Registers the new | |
485 | process with the process list. */ | |
486 | static int | |
487 | win32_create_inferior (char *program, char **program_args) | |
488 | { | |
489 | #ifndef USE_WIN32API | |
490 | char real_path[MAXPATHLEN]; | |
491 | char *orig_path, *new_path, *path_ptr; | |
492 | #endif | |
b80864fb DJ |
493 | BOOL ret; |
494 | DWORD flags; | |
495 | char *args; | |
496 | int argslen; | |
497 | int argc; | |
ed50f18f | 498 | PROCESS_INFORMATION pi; |
aec18585 | 499 | DWORD err; |
b80864fb DJ |
500 | |
501 | if (!program) | |
502 | error ("No executable specified, specify executable to debug.\n"); | |
503 | ||
b80864fb DJ |
504 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
505 | ||
506 | #ifndef USE_WIN32API | |
507 | orig_path = NULL; | |
508 | path_ptr = getenv ("PATH"); | |
509 | if (path_ptr) | |
510 | { | |
511 | orig_path = alloca (strlen (path_ptr) + 1); | |
512 | new_path = alloca (cygwin_posix_to_win32_path_list_buf_size (path_ptr)); | |
513 | strcpy (orig_path, path_ptr); | |
514 | cygwin_posix_to_win32_path_list (path_ptr, new_path); | |
515 | setenv ("PATH", new_path, 1); | |
516 | } | |
517 | cygwin_conv_to_win32_path (program, real_path); | |
518 | program = real_path; | |
519 | #endif | |
520 | ||
ed50f18f | 521 | argslen = 1; |
b80864fb DJ |
522 | for (argc = 1; program_args[argc]; argc++) |
523 | argslen += strlen (program_args[argc]) + 1; | |
524 | args = alloca (argslen); | |
ed50f18f | 525 | args[0] = '\0'; |
b80864fb DJ |
526 | for (argc = 1; program_args[argc]; argc++) |
527 | { | |
528 | /* FIXME: Can we do better about quoting? How does Cygwin | |
529 | handle this? */ | |
530 | strcat (args, " "); | |
531 | strcat (args, program_args[argc]); | |
532 | } | |
ed50f18f | 533 | OUTMSG2 (("Command line is \"%s\"\n", args)); |
b80864fb | 534 | |
ed50f18f | 535 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 536 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 537 | #endif |
b80864fb | 538 | |
aec18585 PA |
539 | ret = create_process (program, args, flags, &pi); |
540 | err = GetLastError (); | |
541 | if (!ret && err == ERROR_FILE_NOT_FOUND) | |
542 | { | |
543 | char *exename = alloca (strlen (program) + 5); | |
544 | strcat (strcpy (exename, program), ".exe"); | |
545 | ret = create_process (exename, args, flags, &pi); | |
546 | err = GetLastError (); | |
547 | } | |
b80864fb DJ |
548 | |
549 | #ifndef USE_WIN32API | |
550 | if (orig_path) | |
551 | setenv ("PATH", orig_path, 1); | |
552 | #endif | |
553 | ||
554 | if (!ret) | |
555 | { | |
ed50f18f PA |
556 | error ("Error creating process \"%s%s\", (error %d): %s\n", |
557 | program, args, (int) err, strwinerror (err)); | |
b80864fb DJ |
558 | } |
559 | else | |
560 | { | |
561 | OUTMSG2 (("Process created: %s\n", (char *) args)); | |
562 | } | |
563 | ||
ed50f18f PA |
564 | #ifndef _WIN32_WCE |
565 | /* On Windows CE this handle can't be closed. The OS reuses | |
566 | it in the debug events, while the 9x/NT versions of Windows | |
567 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 568 | CloseHandle (pi.hThread); |
ed50f18f | 569 | #endif |
b80864fb DJ |
570 | |
571 | current_process_handle = pi.hProcess; | |
572 | current_process_id = pi.dwProcessId; | |
573 | ||
574 | do_initial_child_stuff (current_process_id); | |
575 | ||
576 | return current_process_id; | |
577 | } | |
578 | ||
579 | /* Attach to a running process. | |
580 | PID is the process ID to attach to, specified by the user | |
581 | or a higher layer. */ | |
582 | static int | |
583 | win32_attach (unsigned long pid) | |
584 | { | |
5ca906e6 | 585 | HANDLE h; |
bf914831 | 586 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; |
5ca906e6 | 587 | DWORD err; |
ed50f18f PA |
588 | #ifdef _WIN32_WCE |
589 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
590 | #else | |
591 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
592 | #endif | |
bf914831 | 593 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); |
b80864fb | 594 | |
5ca906e6 PA |
595 | h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
596 | if (h != NULL) | |
1d5315fe | 597 | { |
5ca906e6 PA |
598 | if (DebugActiveProcess (pid)) |
599 | { | |
600 | if (DebugSetProcessKillOnExit != NULL) | |
601 | DebugSetProcessKillOnExit (FALSE); | |
602 | ||
603 | current_process_handle = h; | |
604 | current_process_id = pid; | |
605 | do_initial_child_stuff (pid); | |
606 | return 0; | |
607 | } | |
608 | ||
609 | CloseHandle (h); | |
b80864fb DJ |
610 | } |
611 | ||
5ca906e6 PA |
612 | err = GetLastError (); |
613 | error ("Attach to process failed (error %d): %s\n", | |
614 | (int) err, strwinerror (err)); | |
b80864fb DJ |
615 | } |
616 | ||
bce7165d PA |
617 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
618 | static void | |
619 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
620 | { | |
621 | #define READ_BUFFER_LEN 1024 | |
622 | CORE_ADDR addr; | |
623 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
624 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
625 | ||
626 | if (nbytes == 0) | |
627 | return; | |
628 | ||
629 | if (nbytes > READ_BUFFER_LEN) | |
630 | nbytes = READ_BUFFER_LEN; | |
631 | ||
632 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
633 | ||
634 | if (current_event.u.DebugString.fUnicode) | |
635 | { | |
636 | /* The event tells us how many bytes, not chars, even | |
637 | in Unicode. */ | |
638 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; | |
639 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
640 | return; | |
641 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
642 | } | |
643 | else | |
644 | { | |
645 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
646 | return; | |
647 | } | |
648 | ||
649 | if (strncmp (s, "cYg", 3) != 0) | |
45e2715e PA |
650 | { |
651 | if (!server_waiting) | |
652 | { | |
653 | OUTMSG2(("%s", s)); | |
654 | return; | |
655 | } | |
656 | ||
657 | monitor_output (s); | |
658 | } | |
bce7165d PA |
659 | #undef READ_BUFFER_LEN |
660 | } | |
661 | ||
b80864fb DJ |
662 | /* Kill all inferiors. */ |
663 | static void | |
664 | win32_kill (void) | |
665 | { | |
ed50f18f PA |
666 | win32_thread_info *current_thread; |
667 | ||
9d606399 DJ |
668 | if (current_process_handle == NULL) |
669 | return; | |
670 | ||
b80864fb DJ |
671 | TerminateProcess (current_process_handle, 0); |
672 | for (;;) | |
673 | { | |
674 | if (!child_continue (DBG_CONTINUE, -1)) | |
675 | break; | |
676 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
677 | break; | |
678 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
679 | break; | |
bce7165d PA |
680 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
681 | { | |
682 | struct target_waitstatus our_status = { 0 }; | |
683 | handle_output_debug_string (&our_status); | |
684 | } | |
b80864fb | 685 | } |
ed50f18f PA |
686 | |
687 | CloseHandle (current_process_handle); | |
688 | ||
689 | current_thread = inferior_target_data (current_inferior); | |
690 | if (current_thread && current_thread->h) | |
691 | { | |
692 | /* This may fail in an attached process, so don't check. */ | |
693 | (void) CloseHandle (current_thread->h); | |
694 | } | |
b80864fb DJ |
695 | } |
696 | ||
697 | /* Detach from all inferiors. */ | |
444d6139 | 698 | static int |
b80864fb DJ |
699 | win32_detach (void) |
700 | { | |
444d6139 PA |
701 | HANDLE h; |
702 | ||
bf914831 PA |
703 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
704 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
705 | #ifdef _WIN32_WCE |
706 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
707 | #else | |
708 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
709 | #endif | |
bf914831 PA |
710 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
711 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 712 | |
444d6139 PA |
713 | if (DebugSetProcessKillOnExit == NULL |
714 | || DebugActiveProcessStop == NULL) | |
715 | return -1; | |
b80864fb | 716 | |
444d6139 PA |
717 | /* We need a new handle, since DebugActiveProcessStop |
718 | closes all the ones that came through the events. */ | |
719 | if ((h = OpenProcess (PROCESS_ALL_ACCESS, | |
720 | FALSE, | |
721 | current_process_id)) == NULL) | |
722 | { | |
723 | /* The process died. */ | |
724 | return -1; | |
725 | } | |
726 | ||
727 | { | |
728 | struct thread_resume resume; | |
729 | resume.thread = -1; | |
730 | resume.step = 0; | |
731 | resume.sig = 0; | |
732 | resume.leave_stopped = 0; | |
733 | win32_resume (&resume); | |
734 | } | |
735 | ||
736 | if (!DebugActiveProcessStop (current_process_id)) | |
737 | { | |
738 | CloseHandle (h); | |
739 | return -1; | |
740 | } | |
741 | DebugSetProcessKillOnExit (FALSE); | |
742 | ||
743 | current_process_handle = h; | |
744 | return 0; | |
745 | } | |
746 | ||
747 | /* Wait for inferiors to end. */ | |
748 | static void | |
749 | win32_join (void) | |
750 | { | |
751 | if (current_process_id == 0 | |
752 | || current_process_handle == NULL) | |
753 | return; | |
754 | ||
755 | WaitForSingleObject (current_process_handle, INFINITE); | |
756 | CloseHandle (current_process_handle); | |
757 | ||
758 | current_process_handle = NULL; | |
759 | current_process_id = 0; | |
b80864fb DJ |
760 | } |
761 | ||
762 | /* Return 1 iff the thread with thread ID TID is alive. */ | |
763 | static int | |
764 | win32_thread_alive (unsigned long tid) | |
765 | { | |
766 | int res; | |
767 | ||
768 | /* Our thread list is reliable; don't bother to poll target | |
769 | threads. */ | |
770 | if (find_inferior_id (&all_threads, tid) != NULL) | |
771 | res = 1; | |
772 | else | |
773 | res = 0; | |
774 | return res; | |
775 | } | |
776 | ||
777 | /* Resume the inferior process. RESUME_INFO describes how we want | |
778 | to resume. */ | |
779 | static void | |
780 | win32_resume (struct thread_resume *resume_info) | |
781 | { | |
782 | DWORD tid; | |
783 | enum target_signal sig; | |
784 | int step; | |
41093d81 | 785 | win32_thread_info *th; |
b80864fb DJ |
786 | DWORD continue_status = DBG_CONTINUE; |
787 | ||
788 | /* This handles the very limited set of resume packets that GDB can | |
789 | currently produce. */ | |
790 | ||
791 | if (resume_info[0].thread == -1) | |
792 | tid = -1; | |
793 | else if (resume_info[1].thread == -1 && !resume_info[1].leave_stopped) | |
794 | tid = -1; | |
795 | else | |
796 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
797 | the Windows resume code do the right thing for thread switching. */ | |
798 | tid = current_event.dwThreadId; | |
799 | ||
800 | if (resume_info[0].thread != -1) | |
801 | { | |
802 | sig = resume_info[0].sig; | |
803 | step = resume_info[0].step; | |
804 | } | |
805 | else | |
806 | { | |
807 | sig = 0; | |
808 | step = 0; | |
809 | } | |
810 | ||
811 | if (sig != TARGET_SIGNAL_0) | |
812 | { | |
813 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
814 | { | |
815 | OUTMSG (("Cannot continue with signal %d here.\n", sig)); | |
816 | } | |
817 | else if (sig == last_sig) | |
818 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
819 | else | |
820 | OUTMSG (("Can only continue with recieved signal %d.\n", last_sig)); | |
821 | } | |
822 | ||
823 | last_sig = TARGET_SIGNAL_0; | |
824 | ||
825 | /* Get context for the currently selected thread. */ | |
826 | th = thread_rec (current_event.dwThreadId, FALSE); | |
827 | if (th) | |
828 | { | |
829 | if (th->context.ContextFlags) | |
830 | { | |
b80864fb DJ |
831 | /* Move register values from the inferior into the thread |
832 | context structure. */ | |
833 | regcache_invalidate (); | |
834 | ||
835 | if (step) | |
ed50f18f PA |
836 | { |
837 | if (the_low_target.single_step != NULL) | |
838 | (*the_low_target.single_step) (th); | |
839 | else | |
840 | error ("Single stepping is not supported " | |
841 | "in this configuration.\n"); | |
842 | } | |
34b34921 | 843 | |
9c6c8194 | 844 | win32_set_thread_context (th); |
b80864fb DJ |
845 | th->context.ContextFlags = 0; |
846 | } | |
847 | } | |
848 | ||
849 | /* Allow continuing with the same signal that interrupted us. | |
850 | Otherwise complain. */ | |
851 | ||
852 | child_continue (continue_status, tid); | |
853 | } | |
854 | ||
255e7678 DJ |
855 | static void |
856 | win32_add_one_solib (const char *name, CORE_ADDR load_addr) | |
857 | { | |
858 | char buf[MAX_PATH + 1]; | |
859 | char buf2[MAX_PATH + 1]; | |
860 | ||
861 | #ifdef _WIN32_WCE | |
862 | WIN32_FIND_DATA w32_fd; | |
863 | WCHAR wname[MAX_PATH + 1]; | |
864 | mbstowcs (wname, name, MAX_PATH); | |
865 | HANDLE h = FindFirstFile (wname, &w32_fd); | |
866 | #else | |
867 | WIN32_FIND_DATAA w32_fd; | |
868 | HANDLE h = FindFirstFileA (name, &w32_fd); | |
869 | #endif | |
870 | ||
871 | if (h == INVALID_HANDLE_VALUE) | |
872 | strcpy (buf, name); | |
873 | else | |
874 | { | |
875 | FindClose (h); | |
876 | strcpy (buf, name); | |
877 | #ifndef _WIN32_WCE | |
878 | { | |
879 | char cwd[MAX_PATH + 1]; | |
880 | char *p; | |
881 | if (GetCurrentDirectoryA (MAX_PATH + 1, cwd)) | |
882 | { | |
883 | p = strrchr (buf, '\\'); | |
884 | if (p) | |
885 | p[1] = '\0'; | |
886 | SetCurrentDirectoryA (buf); | |
887 | GetFullPathNameA (w32_fd.cFileName, MAX_PATH, buf, &p); | |
888 | SetCurrentDirectoryA (cwd); | |
889 | } | |
890 | } | |
891 | #endif | |
892 | } | |
893 | ||
894 | #ifdef __CYGWIN__ | |
895 | cygwin_conv_to_posix_path (buf, buf2); | |
896 | #else | |
897 | strcpy (buf2, buf); | |
898 | #endif | |
899 | ||
900 | loaded_dll (buf2, load_addr); | |
901 | } | |
902 | ||
903 | static char * | |
904 | get_image_name (HANDLE h, void *address, int unicode) | |
905 | { | |
906 | static char buf[(2 * MAX_PATH) + 1]; | |
907 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
908 | char *address_ptr; | |
909 | int len = 0; | |
910 | char b[2]; | |
911 | DWORD done; | |
912 | ||
913 | /* Attempt to read the name of the dll that was detected. | |
914 | This is documented to work only when actively debugging | |
915 | a program. It will not work for attached processes. */ | |
916 | if (address == NULL) | |
917 | return NULL; | |
918 | ||
919 | #ifdef _WIN32_WCE | |
920 | /* Windows CE reports the address of the image name, | |
921 | instead of an address of a pointer into the image name. */ | |
922 | address_ptr = address; | |
923 | #else | |
924 | /* See if we could read the address of a string, and that the | |
925 | address isn't null. */ | |
926 | if (!ReadProcessMemory (h, address, &address_ptr, | |
927 | sizeof (address_ptr), &done) | |
928 | || done != sizeof (address_ptr) | |
929 | || !address_ptr) | |
930 | return NULL; | |
931 | #endif | |
932 | ||
933 | /* Find the length of the string */ | |
934 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) | |
935 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
936 | continue; | |
937 | ||
938 | if (!unicode) | |
939 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
940 | else | |
941 | { | |
942 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
943 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
944 | &done); | |
945 | ||
946 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
947 | } | |
948 | ||
949 | return buf; | |
950 | } | |
951 | ||
952 | typedef BOOL (WINAPI *winapi_EnumProcessModules) (HANDLE, HMODULE *, | |
953 | DWORD, LPDWORD); | |
954 | typedef BOOL (WINAPI *winapi_GetModuleInformation) (HANDLE, HMODULE, | |
955 | LPMODULEINFO, DWORD); | |
956 | typedef DWORD (WINAPI *winapi_GetModuleFileNameExA) (HANDLE, HMODULE, | |
957 | LPSTR, DWORD); | |
958 | ||
959 | static winapi_EnumProcessModules win32_EnumProcessModules; | |
960 | static winapi_GetModuleInformation win32_GetModuleInformation; | |
961 | static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA; | |
962 | ||
963 | static BOOL | |
964 | load_psapi (void) | |
965 | { | |
966 | static int psapi_loaded = 0; | |
967 | static HMODULE dll = NULL; | |
968 | ||
969 | if (!psapi_loaded) | |
970 | { | |
971 | psapi_loaded = 1; | |
972 | dll = LoadLibrary (TEXT("psapi.dll")); | |
973 | if (!dll) | |
974 | return FALSE; | |
975 | win32_EnumProcessModules = | |
976 | GETPROCADDRESS (dll, EnumProcessModules); | |
977 | win32_GetModuleInformation = | |
978 | GETPROCADDRESS (dll, GetModuleInformation); | |
979 | win32_GetModuleFileNameExA = | |
980 | GETPROCADDRESS (dll, GetModuleFileNameExA); | |
981 | } | |
982 | ||
983 | return (win32_EnumProcessModules != NULL | |
984 | && win32_GetModuleInformation != NULL | |
985 | && win32_GetModuleFileNameExA != NULL); | |
986 | } | |
987 | ||
988 | static int | |
989 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
990 | { | |
991 | DWORD len; | |
992 | MODULEINFO mi; | |
993 | size_t i; | |
994 | HMODULE dh_buf[1]; | |
995 | HMODULE *DllHandle = dh_buf; | |
996 | DWORD cbNeeded; | |
997 | BOOL ok; | |
998 | ||
999 | if (!load_psapi ()) | |
1000 | goto failed; | |
1001 | ||
1002 | cbNeeded = 0; | |
1003 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1004 | DllHandle, | |
1005 | sizeof (HMODULE), | |
1006 | &cbNeeded); | |
1007 | ||
1008 | if (!ok || !cbNeeded) | |
1009 | goto failed; | |
1010 | ||
1011 | DllHandle = (HMODULE *) alloca (cbNeeded); | |
1012 | if (!DllHandle) | |
1013 | goto failed; | |
1014 | ||
1015 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1016 | DllHandle, | |
1017 | cbNeeded, | |
1018 | &cbNeeded); | |
1019 | if (!ok) | |
1020 | goto failed; | |
1021 | ||
1022 | for (i = 0; i < ((size_t) cbNeeded / sizeof (HMODULE)); i++) | |
1023 | { | |
1024 | if (!(*win32_GetModuleInformation) (current_process_handle, | |
1025 | DllHandle[i], | |
1026 | &mi, | |
1027 | sizeof (mi))) | |
1028 | { | |
1029 | DWORD err = GetLastError (); | |
1030 | error ("Can't get module info: (error %d): %s\n", | |
1031 | (int) err, strwinerror (err)); | |
1032 | } | |
1033 | ||
1034 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
1035 | { | |
1036 | len = (*win32_GetModuleFileNameExA) (current_process_handle, | |
1037 | DllHandle[i], | |
1038 | dll_name_ret, | |
1039 | MAX_PATH); | |
1040 | if (len == 0) | |
1041 | { | |
1042 | DWORD err = GetLastError (); | |
1043 | error ("Error getting dll name: (error %d): %s\n", | |
1044 | (int) err, strwinerror (err)); | |
1045 | } | |
1046 | return 1; | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | failed: | |
1051 | dll_name_ret[0] = '\0'; | |
1052 | return 0; | |
1053 | } | |
1054 | ||
1055 | typedef HANDLE (WINAPI *winapi_CreateToolhelp32Snapshot) (DWORD, DWORD); | |
1056 | typedef BOOL (WINAPI *winapi_Module32First) (HANDLE, LPMODULEENTRY32); | |
1057 | typedef BOOL (WINAPI *winapi_Module32Next) (HANDLE, LPMODULEENTRY32); | |
1058 | ||
1059 | static winapi_CreateToolhelp32Snapshot win32_CreateToolhelp32Snapshot; | |
1060 | static winapi_Module32First win32_Module32First; | |
1061 | static winapi_Module32Next win32_Module32Next; | |
6b3d9b83 PA |
1062 | #ifdef _WIN32_WCE |
1063 | typedef BOOL (WINAPI *winapi_CloseToolhelp32Snapshot) (HANDLE); | |
1064 | static winapi_CloseToolhelp32Snapshot win32_CloseToolhelp32Snapshot; | |
1065 | #endif | |
255e7678 DJ |
1066 | |
1067 | static BOOL | |
1068 | load_toolhelp (void) | |
1069 | { | |
1070 | static int toolhelp_loaded = 0; | |
1071 | static HMODULE dll = NULL; | |
1072 | ||
1073 | if (!toolhelp_loaded) | |
1074 | { | |
1075 | toolhelp_loaded = 1; | |
1076 | #ifndef _WIN32_WCE | |
1077 | dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1078 | #else | |
6b3d9b83 | 1079 | dll = LoadLibrary (L"TOOLHELP.DLL"); |
255e7678 DJ |
1080 | #endif |
1081 | if (!dll) | |
1082 | return FALSE; | |
1083 | ||
1084 | win32_CreateToolhelp32Snapshot = | |
1085 | GETPROCADDRESS (dll, CreateToolhelp32Snapshot); | |
1086 | win32_Module32First = GETPROCADDRESS (dll, Module32First); | |
1087 | win32_Module32Next = GETPROCADDRESS (dll, Module32Next); | |
6b3d9b83 PA |
1088 | #ifdef _WIN32_WCE |
1089 | win32_CloseToolhelp32Snapshot = | |
1090 | GETPROCADDRESS (dll, CloseToolhelp32Snapshot); | |
1091 | #endif | |
255e7678 DJ |
1092 | } |
1093 | ||
1094 | return (win32_CreateToolhelp32Snapshot != NULL | |
1095 | && win32_Module32First != NULL | |
6b3d9b83 PA |
1096 | && win32_Module32Next != NULL |
1097 | #ifdef _WIN32_WCE | |
1098 | && win32_CloseToolhelp32Snapshot != NULL | |
1099 | #endif | |
1100 | ); | |
255e7678 DJ |
1101 | } |
1102 | ||
1103 | static int | |
1104 | toolhelp_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
1105 | { | |
1106 | HANDLE snapshot_module; | |
1107 | MODULEENTRY32 modEntry = { sizeof (MODULEENTRY32) }; | |
6b3d9b83 | 1108 | int found = 0; |
255e7678 DJ |
1109 | |
1110 | if (!load_toolhelp ()) | |
1111 | return 0; | |
1112 | ||
1113 | snapshot_module = win32_CreateToolhelp32Snapshot (TH32CS_SNAPMODULE, | |
1114 | current_event.dwProcessId); | |
1115 | if (snapshot_module == INVALID_HANDLE_VALUE) | |
1116 | return 0; | |
1117 | ||
1118 | /* Ignore the first module, which is the exe. */ | |
6b3d9b83 PA |
1119 | if (win32_Module32First (snapshot_module, &modEntry)) |
1120 | while (win32_Module32Next (snapshot_module, &modEntry)) | |
1121 | if ((DWORD) modEntry.modBaseAddr == BaseAddress) | |
1122 | { | |
255e7678 | 1123 | #ifdef UNICODE |
6b3d9b83 | 1124 | wcstombs (dll_name_ret, modEntry.szExePath, MAX_PATH + 1); |
255e7678 | 1125 | #else |
6b3d9b83 | 1126 | strcpy (dll_name_ret, modEntry.szExePath); |
255e7678 | 1127 | #endif |
6b3d9b83 PA |
1128 | found = 1; |
1129 | break; | |
1130 | } | |
255e7678 | 1131 | |
6b3d9b83 PA |
1132 | #ifdef _WIN32_WCE |
1133 | win32_CloseToolhelp32Snapshot (snapshot_module); | |
1134 | #else | |
255e7678 | 1135 | CloseHandle (snapshot_module); |
6b3d9b83 PA |
1136 | #endif |
1137 | return found; | |
255e7678 DJ |
1138 | } |
1139 | ||
1140 | static void | |
1141 | handle_load_dll (void) | |
1142 | { | |
1143 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
1144 | char dll_buf[MAX_PATH + 1]; | |
1145 | char *dll_name = NULL; | |
1146 | DWORD load_addr; | |
1147 | ||
1148 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; | |
1149 | ||
34d86ddd PA |
1150 | /* Windows does not report the image name of the dlls in the debug |
1151 | event on attaches. We resort to iterating over the list of | |
1152 | loaded dlls looking for a match by image base. */ | |
1153 | if (!psapi_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf)) | |
1154 | { | |
1155 | if (!server_waiting) | |
1156 | /* On some versions of Windows and Windows CE, we can't create | |
1157 | toolhelp snapshots while the inferior is stopped in a | |
1158 | LOAD_DLL_DEBUG_EVENT due to a dll load, but we can while | |
1159 | Windows is reporting the already loaded dlls. */ | |
1160 | toolhelp_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf); | |
1161 | } | |
255e7678 DJ |
1162 | |
1163 | dll_name = dll_buf; | |
1164 | ||
1165 | if (*dll_name == '\0') | |
1166 | dll_name = get_image_name (current_process_handle, | |
1167 | event->lpImageName, event->fUnicode); | |
1168 | if (!dll_name) | |
1169 | return; | |
1170 | ||
1171 | /* The symbols in a dll are offset by 0x1000, which is the | |
1172 | the offset from 0 of the first byte in an image - because | |
1173 | of the file header and the section alignment. */ | |
1174 | ||
1175 | load_addr = (DWORD) event->lpBaseOfDll + 0x1000; | |
1176 | win32_add_one_solib (dll_name, load_addr); | |
1177 | } | |
1178 | ||
1179 | static void | |
1180 | handle_unload_dll (void) | |
1181 | { | |
1182 | CORE_ADDR load_addr = | |
1183 | (CORE_ADDR) (DWORD) current_event.u.UnloadDll.lpBaseOfDll; | |
1184 | load_addr += 0x1000; | |
1185 | unloaded_dll (NULL, load_addr); | |
1186 | } | |
1187 | ||
34b34921 | 1188 | static void |
b80864fb DJ |
1189 | handle_exception (struct target_waitstatus *ourstatus) |
1190 | { | |
b80864fb DJ |
1191 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
1192 | ||
1193 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1194 | ||
b80864fb DJ |
1195 | switch (code) |
1196 | { | |
1197 | case EXCEPTION_ACCESS_VIOLATION: | |
1198 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
1199 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1200 | break; | |
1201 | case STATUS_STACK_OVERFLOW: | |
1202 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
1203 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1204 | break; | |
1205 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1206 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
1207 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1208 | break; | |
1209 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1210 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
1211 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1212 | break; | |
1213 | case STATUS_FLOAT_INEXACT_RESULT: | |
1214 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
1215 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1216 | break; | |
1217 | case STATUS_FLOAT_INVALID_OPERATION: | |
1218 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
1219 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1220 | break; | |
1221 | case STATUS_FLOAT_OVERFLOW: | |
1222 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
1223 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1224 | break; | |
1225 | case STATUS_FLOAT_STACK_CHECK: | |
1226 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
1227 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1228 | break; | |
1229 | case STATUS_FLOAT_UNDERFLOW: | |
1230 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
1231 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1232 | break; | |
1233 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
1234 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
1235 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1236 | break; | |
1237 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
1238 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
1239 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1240 | break; | |
1241 | case STATUS_INTEGER_OVERFLOW: | |
1242 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
1243 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1244 | break; | |
1245 | case EXCEPTION_BREAKPOINT: | |
1246 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
1247 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
ed50f18f PA |
1248 | #ifdef _WIN32_WCE |
1249 | /* Remove the initial breakpoint. */ | |
1250 | check_breakpoints ((CORE_ADDR) (long) current_event | |
1251 | .u.Exception.ExceptionRecord.ExceptionAddress); | |
1252 | #endif | |
b80864fb DJ |
1253 | break; |
1254 | case DBG_CONTROL_C: | |
1255 | OUTMSG2 (("DBG_CONTROL_C")); | |
1256 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1257 | break; | |
1258 | case DBG_CONTROL_BREAK: | |
1259 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
1260 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1261 | break; | |
1262 | case EXCEPTION_SINGLE_STEP: | |
1263 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
1264 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
1265 | break; | |
1266 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
1267 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
1268 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1269 | break; | |
1270 | case EXCEPTION_PRIV_INSTRUCTION: | |
1271 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
1272 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1273 | break; | |
1274 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1275 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
1276 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1277 | break; | |
1278 | default: | |
1279 | if (current_event.u.Exception.dwFirstChance) | |
34b34921 PA |
1280 | { |
1281 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1282 | return; | |
1283 | } | |
b80864fb DJ |
1284 | OUTMSG2 (("gdbserver: unknown target exception 0x%08lx at 0x%08lx", |
1285 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1286 | (DWORD) current_event.u.Exception.ExceptionRecord. | |
1287 | ExceptionAddress)); | |
1288 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
1289 | break; | |
1290 | } | |
1291 | OUTMSG2 (("\n")); | |
1292 | last_sig = ourstatus->value.sig; | |
b80864fb DJ |
1293 | } |
1294 | ||
4d5d1aaa | 1295 | |
34b34921 | 1296 | static void |
4d5d1aaa PA |
1297 | suspend_one_thread (struct inferior_list_entry *entry) |
1298 | { | |
1299 | struct thread_info *thread = (struct thread_info *) entry; | |
1300 | win32_thread_info *th = inferior_target_data (thread); | |
1301 | ||
1302 | if (!th->suspended) | |
1303 | { | |
1304 | if (SuspendThread (th->h) == (DWORD) -1) | |
1305 | { | |
1306 | DWORD err = GetLastError (); | |
1307 | OUTMSG (("warning: SuspendThread failed in suspend_one_thread, " | |
1308 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
1309 | } | |
1310 | else | |
1311 | th->suspended = 1; | |
1312 | } | |
1313 | } | |
1314 | ||
1315 | static void | |
1316 | fake_breakpoint_event (void) | |
b80864fb | 1317 | { |
4d5d1aaa | 1318 | OUTMSG2(("fake_breakpoint_event\n")); |
b80864fb | 1319 | |
4d5d1aaa PA |
1320 | faked_breakpoint = 1; |
1321 | ||
1322 | memset (¤t_event, 0, sizeof (current_event)); | |
1323 | current_event.dwThreadId = main_thread_id; | |
1324 | current_event.dwDebugEventCode = EXCEPTION_DEBUG_EVENT; | |
1325 | current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1326 | = EXCEPTION_BREAKPOINT; | |
1327 | ||
1328 | for_each_inferior (&all_threads, suspend_one_thread); | |
1329 | } | |
1330 | ||
1331 | /* Get the next event from the child. */ | |
1332 | ||
1333 | static int | |
1334 | get_child_debug_event (struct target_waitstatus *ourstatus) | |
1335 | { | |
b80864fb DJ |
1336 | last_sig = TARGET_SIGNAL_0; |
1337 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1338 | ||
4d5d1aaa PA |
1339 | /* Check if GDB sent us an interrupt request. */ |
1340 | check_remote_input_interrupt_request (); | |
1341 | ||
1342 | if (soft_interrupt_requested) | |
1343 | { | |
1344 | soft_interrupt_requested = 0; | |
1345 | fake_breakpoint_event (); | |
1346 | goto gotevent; | |
1347 | } | |
1348 | ||
1349 | /* Keep the wait time low enough for confortable remote | |
1350 | interruption, but high enough so gdbserver doesn't become a | |
1351 | bottleneck. */ | |
1352 | if (!WaitForDebugEvent (¤t_event, 250)) | |
1353 | return 0; | |
1354 | ||
1355 | gotevent: | |
b80864fb DJ |
1356 | |
1357 | current_inferior = | |
1358 | (struct thread_info *) find_inferior_id (&all_threads, | |
1359 | current_event.dwThreadId); | |
1360 | ||
34b34921 | 1361 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
1362 | { |
1363 | case CREATE_THREAD_DEBUG_EVENT: | |
1364 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
1365 | "for pid=%d tid=%x)\n", | |
1366 | (unsigned) current_event.dwProcessId, | |
1367 | (unsigned) current_event.dwThreadId)); | |
1368 | ||
1369 | /* Record the existence of this thread. */ | |
34b34921 | 1370 | child_add_thread (current_event.dwThreadId, |
b80864fb | 1371 | current_event.u.CreateThread.hThread); |
b80864fb DJ |
1372 | break; |
1373 | ||
1374 | case EXIT_THREAD_DEBUG_EVENT: | |
1375 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
1376 | "for pid=%d tid=%x\n", | |
1377 | (unsigned) current_event.dwProcessId, | |
1378 | (unsigned) current_event.dwThreadId)); | |
1379 | child_delete_thread (current_event.dwThreadId); | |
b80864fb DJ |
1380 | break; |
1381 | ||
1382 | case CREATE_PROCESS_DEBUG_EVENT: | |
1383 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
1384 | "for pid=%d tid=%x\n", | |
1385 | (unsigned) current_event.dwProcessId, | |
1386 | (unsigned) current_event.dwThreadId)); | |
1387 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
1388 | ||
1389 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1390 | main_thread_id = current_event.dwThreadId; | |
1391 | ||
1392 | ourstatus->kind = TARGET_WAITKIND_EXECD; | |
1393 | ourstatus->value.execd_pathname = "Main executable"; | |
1394 | ||
1395 | /* Add the main thread. */ | |
34b34921 PA |
1396 | child_add_thread (main_thread_id, |
1397 | current_event.u.CreateProcessInfo.hThread); | |
b80864fb | 1398 | |
34b34921 | 1399 | ourstatus->value.related_pid = current_event.dwThreadId; |
ed50f18f PA |
1400 | #ifdef _WIN32_WCE |
1401 | /* Windows CE doesn't set the initial breakpoint automatically | |
1402 | like the desktop versions of Windows do. We add it explicitly | |
1403 | here. It will be removed as soon as it is hit. */ | |
1404 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
1405 | .CreateProcessInfo.lpStartAddress, | |
1406 | delete_breakpoint_at); | |
1407 | #endif | |
b80864fb DJ |
1408 | break; |
1409 | ||
1410 | case EXIT_PROCESS_DEBUG_EVENT: | |
1411 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
1412 | "for pid=%d tid=%x\n", | |
1413 | (unsigned) current_event.dwProcessId, | |
1414 | (unsigned) current_event.dwThreadId)); | |
1415 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1416 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1417 | CloseHandle (current_process_handle); | |
9d606399 | 1418 | current_process_handle = NULL; |
b80864fb DJ |
1419 | break; |
1420 | ||
1421 | case LOAD_DLL_DEBUG_EVENT: | |
1422 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
1423 | "for pid=%d tid=%x\n", | |
1424 | (unsigned) current_event.dwProcessId, | |
1425 | (unsigned) current_event.dwThreadId)); | |
1426 | CloseHandle (current_event.u.LoadDll.hFile); | |
255e7678 | 1427 | handle_load_dll (); |
b80864fb DJ |
1428 | |
1429 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
255e7678 | 1430 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
b80864fb DJ |
1431 | break; |
1432 | ||
1433 | case UNLOAD_DLL_DEBUG_EVENT: | |
1434 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
1435 | "for pid=%d tid=%x\n", | |
1436 | (unsigned) current_event.dwProcessId, | |
1437 | (unsigned) current_event.dwThreadId)); | |
255e7678 DJ |
1438 | handle_unload_dll (); |
1439 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
1440 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
b80864fb DJ |
1441 | break; |
1442 | ||
1443 | case EXCEPTION_DEBUG_EVENT: | |
1444 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
1445 | "for pid=%d tid=%x\n", | |
1446 | (unsigned) current_event.dwProcessId, | |
1447 | (unsigned) current_event.dwThreadId)); | |
34b34921 | 1448 | handle_exception (ourstatus); |
b80864fb DJ |
1449 | break; |
1450 | ||
1451 | case OUTPUT_DEBUG_STRING_EVENT: | |
1452 | /* A message from the kernel (or Cygwin). */ | |
1453 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
1454 | "for pid=%d tid=%x\n", | |
1455 | (unsigned) current_event.dwProcessId, | |
1456 | (unsigned) current_event.dwThreadId)); | |
bce7165d | 1457 | handle_output_debug_string (ourstatus); |
b80864fb DJ |
1458 | break; |
1459 | ||
1460 | default: | |
1461 | OUTMSG2 (("gdbserver: kernel event unknown " | |
1462 | "for pid=%d tid=%x code=%ld\n", | |
1463 | (unsigned) current_event.dwProcessId, | |
1464 | (unsigned) current_event.dwThreadId, | |
1465 | current_event.dwDebugEventCode)); | |
1466 | break; | |
1467 | } | |
1468 | ||
1469 | current_inferior = | |
1470 | (struct thread_info *) find_inferior_id (&all_threads, | |
1471 | current_event.dwThreadId); | |
4d5d1aaa | 1472 | return 1; |
b80864fb DJ |
1473 | } |
1474 | ||
1475 | /* Wait for the inferior process to change state. | |
1476 | STATUS will be filled in with a response code to send to GDB. | |
1477 | Returns the signal which caused the process to stop. */ | |
1478 | static unsigned char | |
1479 | win32_wait (char *status) | |
1480 | { | |
1481 | struct target_waitstatus our_status; | |
1482 | ||
1483 | *status = 'T'; | |
1484 | ||
1485 | while (1) | |
1486 | { | |
4d5d1aaa PA |
1487 | if (!get_child_debug_event (&our_status)) |
1488 | continue; | |
b80864fb | 1489 | |
34b34921 | 1490 | switch (our_status.kind) |
b80864fb | 1491 | { |
34b34921 | 1492 | case TARGET_WAITKIND_EXITED: |
b80864fb DJ |
1493 | OUTMSG2 (("Child exited with retcode = %x\n", |
1494 | our_status.value.integer)); | |
1495 | ||
1496 | *status = 'W'; | |
b80864fb | 1497 | return our_status.value.integer; |
34b34921 | 1498 | case TARGET_WAITKIND_STOPPED: |
255e7678 | 1499 | case TARGET_WAITKIND_LOADED: |
f72f3e60 | 1500 | OUTMSG2 (("Child Stopped with signal = %d \n", |
ed50f18f | 1501 | our_status.value.sig)); |
b80864fb DJ |
1502 | |
1503 | *status = 'T'; | |
1504 | ||
1505 | child_fetch_inferior_registers (-1); | |
1506 | ||
255e7678 DJ |
1507 | if (our_status.kind == TARGET_WAITKIND_LOADED |
1508 | && !server_waiting) | |
1509 | { | |
1510 | /* When gdb connects, we want to be stopped at the | |
1511 | initial breakpoint, not in some dll load event. */ | |
1512 | child_continue (DBG_CONTINUE, -1); | |
1513 | break; | |
1514 | } | |
1515 | ||
b80864fb | 1516 | return our_status.value.sig; |
34b34921 PA |
1517 | default: |
1518 | OUTMSG (("Ignoring unknown internal event, %d\n", our_status.kind)); | |
1519 | /* fall-through */ | |
1520 | case TARGET_WAITKIND_SPURIOUS: | |
34b34921 PA |
1521 | case TARGET_WAITKIND_EXECD: |
1522 | /* do nothing, just continue */ | |
1523 | child_continue (DBG_CONTINUE, -1); | |
1524 | break; | |
b80864fb | 1525 | } |
b80864fb DJ |
1526 | } |
1527 | } | |
1528 | ||
1529 | /* Fetch registers from the inferior process. | |
1530 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
1531 | static void | |
1532 | win32_fetch_inferior_registers (int regno) | |
1533 | { | |
1534 | child_fetch_inferior_registers (regno); | |
1535 | } | |
1536 | ||
1537 | /* Store registers to the inferior process. | |
1538 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
1539 | static void | |
1540 | win32_store_inferior_registers (int regno) | |
1541 | { | |
1542 | child_store_inferior_registers (regno); | |
1543 | } | |
1544 | ||
1545 | /* Read memory from the inferior process. This should generally be | |
1546 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1547 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
1548 | static int | |
1549 | win32_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) | |
1550 | { | |
ed50f18f | 1551 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1552 | } |
1553 | ||
1554 | /* Write memory to the inferior process. This should generally be | |
1555 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1556 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1557 | Returns 0 on success and errno on failure. */ | |
1558 | static int | |
1559 | win32_write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, | |
1560 | int len) | |
1561 | { | |
1562 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1563 | } | |
1564 | ||
7390519e PA |
1565 | /* Send an interrupt request to the inferior process. */ |
1566 | static void | |
1567 | win32_request_interrupt (void) | |
1568 | { | |
1569 | winapi_DebugBreakProcess DebugBreakProcess; | |
1570 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1571 | ||
1572 | #ifdef _WIN32_WCE | |
1573 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1574 | #else | |
1575 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1576 | #endif | |
1577 | ||
1578 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1579 | ||
1580 | if (GenerateConsoleCtrlEvent != NULL | |
1581 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1582 | return; | |
1583 | ||
1584 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1585 | not a process group id. | |
1586 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1587 | breakpoint exception in the interior process. */ | |
1588 | ||
1589 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1590 | ||
1591 | if (DebugBreakProcess != NULL | |
1592 | && DebugBreakProcess (current_process_handle)) | |
1593 | return; | |
1594 | ||
4d5d1aaa PA |
1595 | /* Last resort, suspend all threads manually. */ |
1596 | soft_interrupt_requested = 1; | |
7390519e PA |
1597 | } |
1598 | ||
820f2bda PA |
1599 | static const char * |
1600 | win32_arch_string (void) | |
1601 | { | |
ed50f18f | 1602 | return the_low_target.arch_string; |
820f2bda PA |
1603 | } |
1604 | ||
b80864fb DJ |
1605 | static struct target_ops win32_target_ops = { |
1606 | win32_create_inferior, | |
1607 | win32_attach, | |
1608 | win32_kill, | |
1609 | win32_detach, | |
444d6139 | 1610 | win32_join, |
b80864fb DJ |
1611 | win32_thread_alive, |
1612 | win32_resume, | |
1613 | win32_wait, | |
1614 | win32_fetch_inferior_registers, | |
1615 | win32_store_inferior_registers, | |
1616 | win32_read_inferior_memory, | |
1617 | win32_write_inferior_memory, | |
820f2bda | 1618 | NULL, |
7390519e | 1619 | win32_request_interrupt, |
820f2bda PA |
1620 | NULL, |
1621 | NULL, | |
1622 | NULL, | |
1623 | NULL, | |
1624 | NULL, | |
1625 | NULL, | |
1626 | NULL, | |
1627 | win32_arch_string | |
b80864fb DJ |
1628 | }; |
1629 | ||
1630 | /* Initialize the Win32 backend. */ | |
1631 | void | |
1632 | initialize_low (void) | |
1633 | { | |
1634 | set_target_ops (&win32_target_ops); | |
ed50f18f PA |
1635 | if (the_low_target.breakpoint != NULL) |
1636 | set_breakpoint_data (the_low_target.breakpoint, | |
1637 | the_low_target.breakpoint_len); | |
b80864fb DJ |
1638 | init_registers (); |
1639 | } |