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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. */ | |
d97903b2 | 68 | static int attaching = 0; |
b80864fb DJ |
69 | static HANDLE current_process_handle = NULL; |
70 | static DWORD current_process_id = 0; | |
71 | static enum target_signal last_sig = TARGET_SIGNAL_0; | |
72 | ||
73 | /* The current debug event from WaitForDebugEvent. */ | |
74 | static DEBUG_EVENT current_event; | |
75 | ||
4d5d1aaa PA |
76 | /* Non zero if an interrupt request is to be satisfied by suspending |
77 | all threads. */ | |
78 | static int soft_interrupt_requested = 0; | |
79 | ||
80 | /* Non zero if the inferior is stopped in a simulated breakpoint done | |
81 | by suspending all the threads. */ | |
82 | static int faked_breakpoint = 0; | |
83 | ||
ed50f18f | 84 | #define NUM_REGS (the_low_target.num_regs) |
b80864fb | 85 | |
bf914831 PA |
86 | typedef BOOL WINAPI (*winapi_DebugActiveProcessStop) (DWORD dwProcessId); |
87 | typedef BOOL WINAPI (*winapi_DebugSetProcessKillOnExit) (BOOL KillOnExit); | |
7390519e PA |
88 | typedef BOOL WINAPI (*winapi_DebugBreakProcess) (HANDLE); |
89 | typedef BOOL WINAPI (*winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD); | |
b80864fb | 90 | |
b80864fb DJ |
91 | static DWORD main_thread_id = 0; |
92 | ||
34b34921 PA |
93 | static void win32_resume (struct thread_resume *resume_info); |
94 | ||
b80864fb DJ |
95 | /* Get the thread ID from the current selected inferior (the current |
96 | thread). */ | |
97 | static DWORD | |
98 | current_inferior_tid (void) | |
99 | { | |
41093d81 | 100 | win32_thread_info *th = inferior_target_data (current_inferior); |
b80864fb DJ |
101 | return th->tid; |
102 | } | |
103 | ||
9c6c8194 PA |
104 | /* Get the thread context of the thread associated with TH. */ |
105 | ||
106 | static void | |
107 | win32_get_thread_context (win32_thread_info *th) | |
108 | { | |
109 | memset (&th->context, 0, sizeof (CONTEXT)); | |
110 | (*the_low_target.get_thread_context) (th, ¤t_event); | |
111 | #ifdef _WIN32_WCE | |
112 | memcpy (&th->base_context, &th->context, sizeof (CONTEXT)); | |
113 | #endif | |
114 | } | |
115 | ||
116 | /* Set the thread context of the thread associated with TH. */ | |
117 | ||
118 | static void | |
119 | win32_set_thread_context (win32_thread_info *th) | |
120 | { | |
121 | #ifdef _WIN32_WCE | |
122 | /* Calling SuspendThread on a thread that is running kernel code | |
123 | will report that the suspending was successful, but in fact, that | |
124 | will often not be true. In those cases, the context returned by | |
125 | GetThreadContext will not be correct by the time the thread | |
126 | stops, hence we can't set that context back into the thread when | |
127 | resuming - it will most likelly crash the inferior. | |
128 | Unfortunately, there is no way to know when the thread will | |
129 | really stop. To work around it, we'll only write the context | |
130 | back to the thread when either the user or GDB explicitly change | |
131 | it between stopping and resuming. */ | |
132 | if (memcmp (&th->context, &th->base_context, sizeof (CONTEXT)) != 0) | |
133 | #endif | |
134 | (*the_low_target.set_thread_context) (th, ¤t_event); | |
135 | } | |
136 | ||
b80864fb DJ |
137 | /* Find a thread record given a thread id. If GET_CONTEXT is set then |
138 | also retrieve the context for this thread. */ | |
41093d81 | 139 | static win32_thread_info * |
b80864fb DJ |
140 | thread_rec (DWORD id, int get_context) |
141 | { | |
142 | struct thread_info *thread; | |
41093d81 | 143 | win32_thread_info *th; |
b80864fb DJ |
144 | |
145 | thread = (struct thread_info *) find_inferior_id (&all_threads, id); | |
146 | if (thread == NULL) | |
147 | return NULL; | |
148 | ||
149 | th = inferior_target_data (thread); | |
c436e841 | 150 | if (get_context && th->context.ContextFlags == 0) |
b80864fb | 151 | { |
c436e841 PA |
152 | if (!th->suspended) |
153 | { | |
154 | if (SuspendThread (th->h) == (DWORD) -1) | |
155 | { | |
156 | DWORD err = GetLastError (); | |
157 | OUTMSG (("warning: SuspendThread failed in thread_rec, " | |
158 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
159 | } | |
160 | else | |
161 | th->suspended = 1; | |
162 | } | |
b80864fb | 163 | |
9c6c8194 | 164 | win32_get_thread_context (th); |
b80864fb DJ |
165 | } |
166 | ||
167 | return th; | |
168 | } | |
169 | ||
170 | /* Add a thread to the thread list. */ | |
41093d81 | 171 | static win32_thread_info * |
b80864fb DJ |
172 | child_add_thread (DWORD tid, HANDLE h) |
173 | { | |
41093d81 | 174 | win32_thread_info *th; |
b80864fb DJ |
175 | |
176 | if ((th = thread_rec (tid, FALSE))) | |
177 | return th; | |
178 | ||
4d5d1aaa | 179 | th = calloc (1, sizeof (*th)); |
b80864fb DJ |
180 | th->tid = tid; |
181 | th->h = h; | |
182 | ||
183 | add_thread (tid, th, (unsigned int) tid); | |
184 | set_inferior_regcache_data ((struct thread_info *) | |
185 | find_inferior_id (&all_threads, tid), | |
186 | new_register_cache ()); | |
187 | ||
34b34921 PA |
188 | if (the_low_target.thread_added != NULL) |
189 | (*the_low_target.thread_added) (th); | |
b80864fb DJ |
190 | |
191 | return th; | |
192 | } | |
193 | ||
194 | /* Delete a thread from the list of threads. */ | |
195 | static void | |
196 | delete_thread_info (struct inferior_list_entry *thread) | |
197 | { | |
41093d81 | 198 | win32_thread_info *th = inferior_target_data ((struct thread_info *) thread); |
b80864fb DJ |
199 | |
200 | remove_thread ((struct thread_info *) thread); | |
201 | CloseHandle (th->h); | |
202 | free (th); | |
203 | } | |
204 | ||
205 | /* Delete a thread from the list of threads. */ | |
206 | static void | |
207 | child_delete_thread (DWORD id) | |
208 | { | |
209 | struct inferior_list_entry *thread; | |
210 | ||
211 | /* If the last thread is exiting, just return. */ | |
212 | if (all_threads.head == all_threads.tail) | |
213 | return; | |
214 | ||
215 | thread = find_inferior_id (&all_threads, id); | |
216 | if (thread == NULL) | |
217 | return; | |
218 | ||
219 | delete_thread_info (thread); | |
220 | } | |
221 | ||
222 | /* Transfer memory from/to the debugged process. */ | |
223 | static int | |
224 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
225 | int write, struct target_ops *target) | |
226 | { | |
227 | SIZE_T done; | |
228 | long addr = (long) memaddr; | |
229 | ||
230 | if (write) | |
231 | { | |
232 | WriteProcessMemory (current_process_handle, (LPVOID) addr, | |
233 | (LPCVOID) our, len, &done); | |
234 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); | |
235 | } | |
236 | else | |
237 | { | |
238 | ReadProcessMemory (current_process_handle, (LPCVOID) addr, (LPVOID) our, | |
239 | len, &done); | |
240 | } | |
241 | return done; | |
242 | } | |
243 | ||
244 | /* Generally, what has the program done? */ | |
245 | enum target_waitkind | |
246 | { | |
247 | /* The program has exited. The exit status is in value.integer. */ | |
248 | TARGET_WAITKIND_EXITED, | |
249 | ||
250 | /* The program has stopped with a signal. Which signal is in | |
251 | value.sig. */ | |
252 | TARGET_WAITKIND_STOPPED, | |
253 | ||
255e7678 DJ |
254 | /* The program is letting us know that it dynamically loaded |
255 | or unloaded something. */ | |
b80864fb DJ |
256 | TARGET_WAITKIND_LOADED, |
257 | ||
258 | /* The program has exec'ed a new executable file. The new file's | |
259 | pathname is pointed to by value.execd_pathname. */ | |
b80864fb DJ |
260 | TARGET_WAITKIND_EXECD, |
261 | ||
7390519e PA |
262 | /* Nothing interesting happened, but we stopped anyway. We take the |
263 | chance to check if GDB requested an interrupt. */ | |
b80864fb DJ |
264 | TARGET_WAITKIND_SPURIOUS, |
265 | }; | |
266 | ||
267 | struct target_waitstatus | |
268 | { | |
269 | enum target_waitkind kind; | |
270 | ||
271 | /* Forked child pid, execd pathname, exit status or signal number. */ | |
272 | union | |
273 | { | |
274 | int integer; | |
275 | enum target_signal sig; | |
276 | int related_pid; | |
277 | char *execd_pathname; | |
278 | int syscall_id; | |
279 | } | |
280 | value; | |
281 | }; | |
282 | ||
ed50f18f | 283 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
284 | state. */ |
285 | static void | |
286 | child_init_thread_list (void) | |
287 | { | |
288 | for_each_inferior (&all_threads, delete_thread_info); | |
289 | } | |
290 | ||
291 | static void | |
292 | do_initial_child_stuff (DWORD pid) | |
293 | { | |
b80864fb DJ |
294 | last_sig = TARGET_SIGNAL_0; |
295 | ||
b80864fb DJ |
296 | memset (¤t_event, 0, sizeof (current_event)); |
297 | ||
298 | child_init_thread_list (); | |
ed50f18f PA |
299 | |
300 | if (the_low_target.initial_stuff != NULL) | |
301 | (*the_low_target.initial_stuff) (); | |
b80864fb DJ |
302 | } |
303 | ||
304 | /* Resume all artificially suspended threads if we are continuing | |
305 | execution. */ | |
306 | static int | |
307 | continue_one_thread (struct inferior_list_entry *this_thread, void *id_ptr) | |
308 | { | |
309 | struct thread_info *thread = (struct thread_info *) this_thread; | |
310 | int thread_id = * (int *) id_ptr; | |
41093d81 | 311 | win32_thread_info *th = inferior_target_data (thread); |
b80864fb DJ |
312 | |
313 | if ((thread_id == -1 || thread_id == th->tid) | |
c436e841 | 314 | && th->suspended) |
b80864fb | 315 | { |
34b34921 | 316 | if (th->context.ContextFlags) |
b80864fb | 317 | { |
9c6c8194 | 318 | win32_set_thread_context (th); |
b80864fb DJ |
319 | th->context.ContextFlags = 0; |
320 | } | |
34b34921 | 321 | |
c436e841 PA |
322 | if (ResumeThread (th->h) == (DWORD) -1) |
323 | { | |
324 | DWORD err = GetLastError (); | |
325 | OUTMSG (("warning: ResumeThread failed in continue_one_thread, " | |
326 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
327 | } | |
328 | th->suspended = 0; | |
b80864fb DJ |
329 | } |
330 | ||
331 | return 0; | |
332 | } | |
333 | ||
334 | static BOOL | |
335 | child_continue (DWORD continue_status, int thread_id) | |
336 | { | |
4d5d1aaa PA |
337 | /* The inferior will only continue after the ContinueDebugEvent |
338 | call. */ | |
339 | find_inferior (&all_threads, continue_one_thread, &thread_id); | |
340 | faked_breakpoint = 0; | |
b80864fb | 341 | |
4d5d1aaa PA |
342 | if (!ContinueDebugEvent (current_event.dwProcessId, |
343 | current_event.dwThreadId, | |
344 | continue_status)) | |
345 | return FALSE; | |
b80864fb | 346 | |
4d5d1aaa | 347 | return TRUE; |
b80864fb DJ |
348 | } |
349 | ||
b80864fb DJ |
350 | /* Fetch register(s) from the current thread context. */ |
351 | static void | |
352 | child_fetch_inferior_registers (int r) | |
353 | { | |
354 | int regno; | |
41093d81 | 355 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
356 | if (r == -1 || r == 0 || r > NUM_REGS) |
357 | child_fetch_inferior_registers (NUM_REGS); | |
358 | else | |
359 | for (regno = 0; regno < r; regno++) | |
34b34921 | 360 | (*the_low_target.fetch_inferior_register) (th, regno); |
b80864fb DJ |
361 | } |
362 | ||
363 | /* Store a new register value into the current thread context. We don't | |
364 | change the program's context until later, when we resume it. */ | |
365 | static void | |
366 | child_store_inferior_registers (int r) | |
367 | { | |
368 | int regno; | |
41093d81 | 369 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
370 | if (r == -1 || r == 0 || r > NUM_REGS) |
371 | child_store_inferior_registers (NUM_REGS); | |
372 | else | |
373 | for (regno = 0; regno < r; regno++) | |
34b34921 | 374 | (*the_low_target.store_inferior_register) (th, regno); |
b80864fb DJ |
375 | } |
376 | ||
ed50f18f PA |
377 | /* Map the Windows error number in ERROR to a locale-dependent error |
378 | message string and return a pointer to it. Typically, the values | |
379 | for ERROR come from GetLastError. | |
380 | ||
381 | The string pointed to shall not be modified by the application, | |
382 | but may be overwritten by a subsequent call to strwinerror | |
383 | ||
384 | The strwinerror function does not change the current setting | |
385 | of GetLastError. */ | |
386 | ||
387 | char * | |
388 | strwinerror (DWORD error) | |
389 | { | |
390 | static char buf[1024]; | |
391 | TCHAR *msgbuf; | |
392 | DWORD lasterr = GetLastError (); | |
393 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
394 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
395 | NULL, | |
396 | error, | |
397 | 0, /* Default language */ | |
398 | (LPVOID)&msgbuf, | |
399 | 0, | |
400 | NULL); | |
401 | if (chars != 0) | |
402 | { | |
403 | /* If there is an \r\n appended, zap it. */ | |
404 | if (chars >= 2 | |
405 | && msgbuf[chars - 2] == '\r' | |
406 | && msgbuf[chars - 1] == '\n') | |
407 | { | |
408 | chars -= 2; | |
409 | msgbuf[chars] = 0; | |
410 | } | |
411 | ||
412 | if (chars > ((COUNTOF (buf)) - 1)) | |
413 | { | |
414 | chars = COUNTOF (buf) - 1; | |
415 | msgbuf [chars] = 0; | |
416 | } | |
417 | ||
418 | #ifdef UNICODE | |
419 | wcstombs (buf, msgbuf, chars + 1); | |
420 | #else | |
421 | strncpy (buf, msgbuf, chars + 1); | |
422 | #endif | |
423 | LocalFree (msgbuf); | |
424 | } | |
425 | else | |
426 | sprintf (buf, "unknown win32 error (%ld)", error); | |
427 | ||
428 | SetLastError (lasterr); | |
429 | return buf; | |
430 | } | |
431 | ||
aec18585 PA |
432 | static BOOL |
433 | create_process (const char *program, char *args, | |
434 | DWORD flags, PROCESS_INFORMATION *pi) | |
435 | { | |
436 | BOOL ret; | |
437 | ||
438 | #ifdef _WIN32_WCE | |
439 | wchar_t *p, *wprogram, *wargs; | |
440 | size_t argslen; | |
441 | ||
442 | wprogram = alloca ((strlen (program) + 1) * sizeof (wchar_t)); | |
443 | mbstowcs (wprogram, program, strlen (program) + 1); | |
444 | ||
445 | for (p = wprogram; *p; ++p) | |
446 | if (L'/' == *p) | |
447 | *p = L'\\'; | |
448 | ||
449 | argslen = strlen (args); | |
450 | wargs = alloca ((argslen + 1) * sizeof (wchar_t)); | |
451 | mbstowcs (wargs, args, argslen + 1); | |
452 | ||
453 | ret = CreateProcessW (wprogram, /* image name */ | |
454 | wargs, /* command line */ | |
455 | NULL, /* security, not supported */ | |
456 | NULL, /* thread, not supported */ | |
457 | FALSE, /* inherit handles, not supported */ | |
458 | flags, /* start flags */ | |
459 | NULL, /* environment, not supported */ | |
460 | NULL, /* current directory, not supported */ | |
461 | NULL, /* start info, not supported */ | |
462 | pi); /* proc info */ | |
463 | #else | |
464 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; | |
465 | ||
466 | ret = CreateProcessA (program, /* image name */ | |
467 | args, /* command line */ | |
468 | NULL, /* security */ | |
469 | NULL, /* thread */ | |
470 | TRUE, /* inherit handles */ | |
471 | flags, /* start flags */ | |
472 | NULL, /* environment */ | |
473 | NULL, /* current directory */ | |
474 | &si, /* start info */ | |
475 | pi); /* proc info */ | |
476 | #endif | |
477 | ||
478 | return ret; | |
479 | } | |
480 | ||
b80864fb DJ |
481 | /* Start a new process. |
482 | PROGRAM is a path to the program to execute. | |
483 | ARGS is a standard NULL-terminated array of arguments, | |
484 | to be passed to the inferior as ``argv''. | |
485 | Returns the new PID on success, -1 on failure. Registers the new | |
486 | process with the process list. */ | |
487 | static int | |
488 | win32_create_inferior (char *program, char **program_args) | |
489 | { | |
490 | #ifndef USE_WIN32API | |
491 | char real_path[MAXPATHLEN]; | |
492 | char *orig_path, *new_path, *path_ptr; | |
493 | #endif | |
b80864fb DJ |
494 | BOOL ret; |
495 | DWORD flags; | |
496 | char *args; | |
497 | int argslen; | |
498 | int argc; | |
ed50f18f | 499 | PROCESS_INFORMATION pi; |
aec18585 | 500 | DWORD err; |
b80864fb | 501 | |
d97903b2 PA |
502 | /* win32_wait needs to know we're not attaching. */ |
503 | attaching = 0; | |
504 | ||
b80864fb DJ |
505 | if (!program) |
506 | error ("No executable specified, specify executable to debug.\n"); | |
507 | ||
b80864fb DJ |
508 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
509 | ||
510 | #ifndef USE_WIN32API | |
511 | orig_path = NULL; | |
512 | path_ptr = getenv ("PATH"); | |
513 | if (path_ptr) | |
514 | { | |
515 | orig_path = alloca (strlen (path_ptr) + 1); | |
516 | new_path = alloca (cygwin_posix_to_win32_path_list_buf_size (path_ptr)); | |
517 | strcpy (orig_path, path_ptr); | |
518 | cygwin_posix_to_win32_path_list (path_ptr, new_path); | |
519 | setenv ("PATH", new_path, 1); | |
520 | } | |
521 | cygwin_conv_to_win32_path (program, real_path); | |
522 | program = real_path; | |
523 | #endif | |
524 | ||
ed50f18f | 525 | argslen = 1; |
b80864fb DJ |
526 | for (argc = 1; program_args[argc]; argc++) |
527 | argslen += strlen (program_args[argc]) + 1; | |
528 | args = alloca (argslen); | |
ed50f18f | 529 | args[0] = '\0'; |
b80864fb DJ |
530 | for (argc = 1; program_args[argc]; argc++) |
531 | { | |
532 | /* FIXME: Can we do better about quoting? How does Cygwin | |
533 | handle this? */ | |
534 | strcat (args, " "); | |
535 | strcat (args, program_args[argc]); | |
536 | } | |
ed50f18f | 537 | OUTMSG2 (("Command line is \"%s\"\n", args)); |
b80864fb | 538 | |
ed50f18f | 539 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 540 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 541 | #endif |
b80864fb | 542 | |
aec18585 PA |
543 | ret = create_process (program, args, flags, &pi); |
544 | err = GetLastError (); | |
545 | if (!ret && err == ERROR_FILE_NOT_FOUND) | |
546 | { | |
547 | char *exename = alloca (strlen (program) + 5); | |
548 | strcat (strcpy (exename, program), ".exe"); | |
549 | ret = create_process (exename, args, flags, &pi); | |
550 | err = GetLastError (); | |
551 | } | |
b80864fb DJ |
552 | |
553 | #ifndef USE_WIN32API | |
554 | if (orig_path) | |
555 | setenv ("PATH", orig_path, 1); | |
556 | #endif | |
557 | ||
558 | if (!ret) | |
559 | { | |
ed50f18f PA |
560 | error ("Error creating process \"%s%s\", (error %d): %s\n", |
561 | program, args, (int) err, strwinerror (err)); | |
b80864fb DJ |
562 | } |
563 | else | |
564 | { | |
565 | OUTMSG2 (("Process created: %s\n", (char *) args)); | |
566 | } | |
567 | ||
ed50f18f PA |
568 | #ifndef _WIN32_WCE |
569 | /* On Windows CE this handle can't be closed. The OS reuses | |
570 | it in the debug events, while the 9x/NT versions of Windows | |
571 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 572 | CloseHandle (pi.hThread); |
ed50f18f | 573 | #endif |
b80864fb DJ |
574 | |
575 | current_process_handle = pi.hProcess; | |
576 | current_process_id = pi.dwProcessId; | |
577 | ||
578 | do_initial_child_stuff (current_process_id); | |
579 | ||
580 | return current_process_id; | |
581 | } | |
582 | ||
583 | /* Attach to a running process. | |
584 | PID is the process ID to attach to, specified by the user | |
585 | or a higher layer. */ | |
586 | static int | |
587 | win32_attach (unsigned long pid) | |
588 | { | |
5ca906e6 | 589 | HANDLE h; |
bf914831 | 590 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; |
5ca906e6 | 591 | DWORD err; |
ed50f18f PA |
592 | #ifdef _WIN32_WCE |
593 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
594 | #else | |
595 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
596 | #endif | |
bf914831 | 597 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); |
b80864fb | 598 | |
5ca906e6 PA |
599 | h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
600 | if (h != NULL) | |
1d5315fe | 601 | { |
5ca906e6 PA |
602 | if (DebugActiveProcess (pid)) |
603 | { | |
604 | if (DebugSetProcessKillOnExit != NULL) | |
605 | DebugSetProcessKillOnExit (FALSE); | |
606 | ||
d97903b2 PA |
607 | /* win32_wait needs to know we're attaching. */ |
608 | attaching = 1; | |
5ca906e6 PA |
609 | current_process_handle = h; |
610 | current_process_id = pid; | |
611 | do_initial_child_stuff (pid); | |
612 | return 0; | |
613 | } | |
614 | ||
615 | CloseHandle (h); | |
b80864fb DJ |
616 | } |
617 | ||
5ca906e6 PA |
618 | err = GetLastError (); |
619 | error ("Attach to process failed (error %d): %s\n", | |
620 | (int) err, strwinerror (err)); | |
b80864fb DJ |
621 | } |
622 | ||
bce7165d PA |
623 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
624 | static void | |
625 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
626 | { | |
627 | #define READ_BUFFER_LEN 1024 | |
628 | CORE_ADDR addr; | |
629 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
630 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
631 | ||
632 | if (nbytes == 0) | |
633 | return; | |
634 | ||
635 | if (nbytes > READ_BUFFER_LEN) | |
636 | nbytes = READ_BUFFER_LEN; | |
637 | ||
638 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
639 | ||
640 | if (current_event.u.DebugString.fUnicode) | |
641 | { | |
642 | /* The event tells us how many bytes, not chars, even | |
643 | in Unicode. */ | |
644 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; | |
645 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
646 | return; | |
647 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
648 | } | |
649 | else | |
650 | { | |
651 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
652 | return; | |
653 | } | |
654 | ||
655 | if (strncmp (s, "cYg", 3) != 0) | |
45e2715e PA |
656 | { |
657 | if (!server_waiting) | |
658 | { | |
659 | OUTMSG2(("%s", s)); | |
660 | return; | |
661 | } | |
662 | ||
663 | monitor_output (s); | |
664 | } | |
bce7165d PA |
665 | #undef READ_BUFFER_LEN |
666 | } | |
667 | ||
b80864fb DJ |
668 | /* Kill all inferiors. */ |
669 | static void | |
670 | win32_kill (void) | |
671 | { | |
ed50f18f PA |
672 | win32_thread_info *current_thread; |
673 | ||
9d606399 DJ |
674 | if (current_process_handle == NULL) |
675 | return; | |
676 | ||
b80864fb DJ |
677 | TerminateProcess (current_process_handle, 0); |
678 | for (;;) | |
679 | { | |
680 | if (!child_continue (DBG_CONTINUE, -1)) | |
681 | break; | |
682 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
683 | break; | |
684 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
685 | break; | |
bce7165d PA |
686 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
687 | { | |
688 | struct target_waitstatus our_status = { 0 }; | |
689 | handle_output_debug_string (&our_status); | |
690 | } | |
b80864fb | 691 | } |
ed50f18f PA |
692 | |
693 | CloseHandle (current_process_handle); | |
694 | ||
695 | current_thread = inferior_target_data (current_inferior); | |
696 | if (current_thread && current_thread->h) | |
697 | { | |
698 | /* This may fail in an attached process, so don't check. */ | |
699 | (void) CloseHandle (current_thread->h); | |
700 | } | |
b80864fb DJ |
701 | } |
702 | ||
703 | /* Detach from all inferiors. */ | |
444d6139 | 704 | static int |
b80864fb DJ |
705 | win32_detach (void) |
706 | { | |
444d6139 PA |
707 | HANDLE h; |
708 | ||
bf914831 PA |
709 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
710 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
711 | #ifdef _WIN32_WCE |
712 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
713 | #else | |
714 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
715 | #endif | |
bf914831 PA |
716 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
717 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 718 | |
444d6139 PA |
719 | if (DebugSetProcessKillOnExit == NULL |
720 | || DebugActiveProcessStop == NULL) | |
721 | return -1; | |
b80864fb | 722 | |
444d6139 PA |
723 | /* We need a new handle, since DebugActiveProcessStop |
724 | closes all the ones that came through the events. */ | |
725 | if ((h = OpenProcess (PROCESS_ALL_ACCESS, | |
726 | FALSE, | |
727 | current_process_id)) == NULL) | |
728 | { | |
729 | /* The process died. */ | |
730 | return -1; | |
731 | } | |
732 | ||
733 | { | |
734 | struct thread_resume resume; | |
735 | resume.thread = -1; | |
736 | resume.step = 0; | |
737 | resume.sig = 0; | |
738 | resume.leave_stopped = 0; | |
739 | win32_resume (&resume); | |
740 | } | |
741 | ||
742 | if (!DebugActiveProcessStop (current_process_id)) | |
743 | { | |
744 | CloseHandle (h); | |
745 | return -1; | |
746 | } | |
747 | DebugSetProcessKillOnExit (FALSE); | |
748 | ||
749 | current_process_handle = h; | |
750 | return 0; | |
751 | } | |
752 | ||
753 | /* Wait for inferiors to end. */ | |
754 | static void | |
755 | win32_join (void) | |
756 | { | |
757 | if (current_process_id == 0 | |
758 | || current_process_handle == NULL) | |
759 | return; | |
760 | ||
761 | WaitForSingleObject (current_process_handle, INFINITE); | |
762 | CloseHandle (current_process_handle); | |
763 | ||
764 | current_process_handle = NULL; | |
765 | current_process_id = 0; | |
b80864fb DJ |
766 | } |
767 | ||
768 | /* Return 1 iff the thread with thread ID TID is alive. */ | |
769 | static int | |
770 | win32_thread_alive (unsigned long tid) | |
771 | { | |
772 | int res; | |
773 | ||
774 | /* Our thread list is reliable; don't bother to poll target | |
775 | threads. */ | |
776 | if (find_inferior_id (&all_threads, tid) != NULL) | |
777 | res = 1; | |
778 | else | |
779 | res = 0; | |
780 | return res; | |
781 | } | |
782 | ||
783 | /* Resume the inferior process. RESUME_INFO describes how we want | |
784 | to resume. */ | |
785 | static void | |
786 | win32_resume (struct thread_resume *resume_info) | |
787 | { | |
788 | DWORD tid; | |
789 | enum target_signal sig; | |
790 | int step; | |
41093d81 | 791 | win32_thread_info *th; |
b80864fb DJ |
792 | DWORD continue_status = DBG_CONTINUE; |
793 | ||
794 | /* This handles the very limited set of resume packets that GDB can | |
795 | currently produce. */ | |
796 | ||
797 | if (resume_info[0].thread == -1) | |
798 | tid = -1; | |
799 | else if (resume_info[1].thread == -1 && !resume_info[1].leave_stopped) | |
800 | tid = -1; | |
801 | else | |
802 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
803 | the Windows resume code do the right thing for thread switching. */ | |
804 | tid = current_event.dwThreadId; | |
805 | ||
806 | if (resume_info[0].thread != -1) | |
807 | { | |
808 | sig = resume_info[0].sig; | |
809 | step = resume_info[0].step; | |
810 | } | |
811 | else | |
812 | { | |
813 | sig = 0; | |
814 | step = 0; | |
815 | } | |
816 | ||
817 | if (sig != TARGET_SIGNAL_0) | |
818 | { | |
819 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
820 | { | |
821 | OUTMSG (("Cannot continue with signal %d here.\n", sig)); | |
822 | } | |
823 | else if (sig == last_sig) | |
824 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
825 | else | |
826 | OUTMSG (("Can only continue with recieved signal %d.\n", last_sig)); | |
827 | } | |
828 | ||
829 | last_sig = TARGET_SIGNAL_0; | |
830 | ||
831 | /* Get context for the currently selected thread. */ | |
832 | th = thread_rec (current_event.dwThreadId, FALSE); | |
833 | if (th) | |
834 | { | |
835 | if (th->context.ContextFlags) | |
836 | { | |
b80864fb DJ |
837 | /* Move register values from the inferior into the thread |
838 | context structure. */ | |
839 | regcache_invalidate (); | |
840 | ||
841 | if (step) | |
ed50f18f PA |
842 | { |
843 | if (the_low_target.single_step != NULL) | |
844 | (*the_low_target.single_step) (th); | |
845 | else | |
846 | error ("Single stepping is not supported " | |
847 | "in this configuration.\n"); | |
848 | } | |
34b34921 | 849 | |
9c6c8194 | 850 | win32_set_thread_context (th); |
b80864fb DJ |
851 | th->context.ContextFlags = 0; |
852 | } | |
853 | } | |
854 | ||
855 | /* Allow continuing with the same signal that interrupted us. | |
856 | Otherwise complain. */ | |
857 | ||
858 | child_continue (continue_status, tid); | |
859 | } | |
860 | ||
255e7678 DJ |
861 | static void |
862 | win32_add_one_solib (const char *name, CORE_ADDR load_addr) | |
863 | { | |
864 | char buf[MAX_PATH + 1]; | |
865 | char buf2[MAX_PATH + 1]; | |
866 | ||
867 | #ifdef _WIN32_WCE | |
868 | WIN32_FIND_DATA w32_fd; | |
869 | WCHAR wname[MAX_PATH + 1]; | |
870 | mbstowcs (wname, name, MAX_PATH); | |
871 | HANDLE h = FindFirstFile (wname, &w32_fd); | |
872 | #else | |
873 | WIN32_FIND_DATAA w32_fd; | |
874 | HANDLE h = FindFirstFileA (name, &w32_fd); | |
875 | #endif | |
876 | ||
877 | if (h == INVALID_HANDLE_VALUE) | |
878 | strcpy (buf, name); | |
879 | else | |
880 | { | |
881 | FindClose (h); | |
882 | strcpy (buf, name); | |
883 | #ifndef _WIN32_WCE | |
884 | { | |
885 | char cwd[MAX_PATH + 1]; | |
886 | char *p; | |
887 | if (GetCurrentDirectoryA (MAX_PATH + 1, cwd)) | |
888 | { | |
889 | p = strrchr (buf, '\\'); | |
890 | if (p) | |
891 | p[1] = '\0'; | |
892 | SetCurrentDirectoryA (buf); | |
893 | GetFullPathNameA (w32_fd.cFileName, MAX_PATH, buf, &p); | |
894 | SetCurrentDirectoryA (cwd); | |
895 | } | |
896 | } | |
897 | #endif | |
898 | } | |
899 | ||
900 | #ifdef __CYGWIN__ | |
901 | cygwin_conv_to_posix_path (buf, buf2); | |
902 | #else | |
903 | strcpy (buf2, buf); | |
904 | #endif | |
905 | ||
906 | loaded_dll (buf2, load_addr); | |
907 | } | |
908 | ||
909 | static char * | |
910 | get_image_name (HANDLE h, void *address, int unicode) | |
911 | { | |
912 | static char buf[(2 * MAX_PATH) + 1]; | |
913 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
914 | char *address_ptr; | |
915 | int len = 0; | |
916 | char b[2]; | |
917 | DWORD done; | |
918 | ||
919 | /* Attempt to read the name of the dll that was detected. | |
920 | This is documented to work only when actively debugging | |
921 | a program. It will not work for attached processes. */ | |
922 | if (address == NULL) | |
923 | return NULL; | |
924 | ||
925 | #ifdef _WIN32_WCE | |
926 | /* Windows CE reports the address of the image name, | |
927 | instead of an address of a pointer into the image name. */ | |
928 | address_ptr = address; | |
929 | #else | |
930 | /* See if we could read the address of a string, and that the | |
931 | address isn't null. */ | |
932 | if (!ReadProcessMemory (h, address, &address_ptr, | |
933 | sizeof (address_ptr), &done) | |
934 | || done != sizeof (address_ptr) | |
935 | || !address_ptr) | |
936 | return NULL; | |
937 | #endif | |
938 | ||
939 | /* Find the length of the string */ | |
940 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) | |
941 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
942 | continue; | |
943 | ||
944 | if (!unicode) | |
945 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
946 | else | |
947 | { | |
948 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
949 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
950 | &done); | |
951 | ||
952 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
953 | } | |
954 | ||
955 | return buf; | |
956 | } | |
957 | ||
958 | typedef BOOL (WINAPI *winapi_EnumProcessModules) (HANDLE, HMODULE *, | |
959 | DWORD, LPDWORD); | |
960 | typedef BOOL (WINAPI *winapi_GetModuleInformation) (HANDLE, HMODULE, | |
961 | LPMODULEINFO, DWORD); | |
962 | typedef DWORD (WINAPI *winapi_GetModuleFileNameExA) (HANDLE, HMODULE, | |
963 | LPSTR, DWORD); | |
964 | ||
965 | static winapi_EnumProcessModules win32_EnumProcessModules; | |
966 | static winapi_GetModuleInformation win32_GetModuleInformation; | |
967 | static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA; | |
968 | ||
969 | static BOOL | |
970 | load_psapi (void) | |
971 | { | |
972 | static int psapi_loaded = 0; | |
973 | static HMODULE dll = NULL; | |
974 | ||
975 | if (!psapi_loaded) | |
976 | { | |
977 | psapi_loaded = 1; | |
978 | dll = LoadLibrary (TEXT("psapi.dll")); | |
979 | if (!dll) | |
980 | return FALSE; | |
981 | win32_EnumProcessModules = | |
982 | GETPROCADDRESS (dll, EnumProcessModules); | |
983 | win32_GetModuleInformation = | |
984 | GETPROCADDRESS (dll, GetModuleInformation); | |
985 | win32_GetModuleFileNameExA = | |
986 | GETPROCADDRESS (dll, GetModuleFileNameExA); | |
987 | } | |
988 | ||
989 | return (win32_EnumProcessModules != NULL | |
990 | && win32_GetModuleInformation != NULL | |
991 | && win32_GetModuleFileNameExA != NULL); | |
992 | } | |
993 | ||
994 | static int | |
995 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
996 | { | |
997 | DWORD len; | |
998 | MODULEINFO mi; | |
999 | size_t i; | |
1000 | HMODULE dh_buf[1]; | |
1001 | HMODULE *DllHandle = dh_buf; | |
1002 | DWORD cbNeeded; | |
1003 | BOOL ok; | |
1004 | ||
1005 | if (!load_psapi ()) | |
1006 | goto failed; | |
1007 | ||
1008 | cbNeeded = 0; | |
1009 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1010 | DllHandle, | |
1011 | sizeof (HMODULE), | |
1012 | &cbNeeded); | |
1013 | ||
1014 | if (!ok || !cbNeeded) | |
1015 | goto failed; | |
1016 | ||
1017 | DllHandle = (HMODULE *) alloca (cbNeeded); | |
1018 | if (!DllHandle) | |
1019 | goto failed; | |
1020 | ||
1021 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1022 | DllHandle, | |
1023 | cbNeeded, | |
1024 | &cbNeeded); | |
1025 | if (!ok) | |
1026 | goto failed; | |
1027 | ||
1028 | for (i = 0; i < ((size_t) cbNeeded / sizeof (HMODULE)); i++) | |
1029 | { | |
1030 | if (!(*win32_GetModuleInformation) (current_process_handle, | |
1031 | DllHandle[i], | |
1032 | &mi, | |
1033 | sizeof (mi))) | |
1034 | { | |
1035 | DWORD err = GetLastError (); | |
1036 | error ("Can't get module info: (error %d): %s\n", | |
1037 | (int) err, strwinerror (err)); | |
1038 | } | |
1039 | ||
1040 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
1041 | { | |
1042 | len = (*win32_GetModuleFileNameExA) (current_process_handle, | |
1043 | DllHandle[i], | |
1044 | dll_name_ret, | |
1045 | MAX_PATH); | |
1046 | if (len == 0) | |
1047 | { | |
1048 | DWORD err = GetLastError (); | |
1049 | error ("Error getting dll name: (error %d): %s\n", | |
1050 | (int) err, strwinerror (err)); | |
1051 | } | |
1052 | return 1; | |
1053 | } | |
1054 | } | |
1055 | ||
1056 | failed: | |
1057 | dll_name_ret[0] = '\0'; | |
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | typedef HANDLE (WINAPI *winapi_CreateToolhelp32Snapshot) (DWORD, DWORD); | |
1062 | typedef BOOL (WINAPI *winapi_Module32First) (HANDLE, LPMODULEENTRY32); | |
1063 | typedef BOOL (WINAPI *winapi_Module32Next) (HANDLE, LPMODULEENTRY32); | |
1064 | ||
1065 | static winapi_CreateToolhelp32Snapshot win32_CreateToolhelp32Snapshot; | |
1066 | static winapi_Module32First win32_Module32First; | |
1067 | static winapi_Module32Next win32_Module32Next; | |
6b3d9b83 PA |
1068 | #ifdef _WIN32_WCE |
1069 | typedef BOOL (WINAPI *winapi_CloseToolhelp32Snapshot) (HANDLE); | |
1070 | static winapi_CloseToolhelp32Snapshot win32_CloseToolhelp32Snapshot; | |
1071 | #endif | |
255e7678 DJ |
1072 | |
1073 | static BOOL | |
1074 | load_toolhelp (void) | |
1075 | { | |
1076 | static int toolhelp_loaded = 0; | |
1077 | static HMODULE dll = NULL; | |
1078 | ||
1079 | if (!toolhelp_loaded) | |
1080 | { | |
1081 | toolhelp_loaded = 1; | |
1082 | #ifndef _WIN32_WCE | |
1083 | dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1084 | #else | |
6b3d9b83 | 1085 | dll = LoadLibrary (L"TOOLHELP.DLL"); |
255e7678 DJ |
1086 | #endif |
1087 | if (!dll) | |
1088 | return FALSE; | |
1089 | ||
1090 | win32_CreateToolhelp32Snapshot = | |
1091 | GETPROCADDRESS (dll, CreateToolhelp32Snapshot); | |
1092 | win32_Module32First = GETPROCADDRESS (dll, Module32First); | |
1093 | win32_Module32Next = GETPROCADDRESS (dll, Module32Next); | |
6b3d9b83 PA |
1094 | #ifdef _WIN32_WCE |
1095 | win32_CloseToolhelp32Snapshot = | |
1096 | GETPROCADDRESS (dll, CloseToolhelp32Snapshot); | |
1097 | #endif | |
255e7678 DJ |
1098 | } |
1099 | ||
1100 | return (win32_CreateToolhelp32Snapshot != NULL | |
1101 | && win32_Module32First != NULL | |
6b3d9b83 PA |
1102 | && win32_Module32Next != NULL |
1103 | #ifdef _WIN32_WCE | |
1104 | && win32_CloseToolhelp32Snapshot != NULL | |
1105 | #endif | |
1106 | ); | |
255e7678 DJ |
1107 | } |
1108 | ||
1109 | static int | |
1110 | toolhelp_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
1111 | { | |
1112 | HANDLE snapshot_module; | |
1113 | MODULEENTRY32 modEntry = { sizeof (MODULEENTRY32) }; | |
6b3d9b83 | 1114 | int found = 0; |
255e7678 DJ |
1115 | |
1116 | if (!load_toolhelp ()) | |
1117 | return 0; | |
1118 | ||
1119 | snapshot_module = win32_CreateToolhelp32Snapshot (TH32CS_SNAPMODULE, | |
1120 | current_event.dwProcessId); | |
1121 | if (snapshot_module == INVALID_HANDLE_VALUE) | |
1122 | return 0; | |
1123 | ||
1124 | /* Ignore the first module, which is the exe. */ | |
6b3d9b83 PA |
1125 | if (win32_Module32First (snapshot_module, &modEntry)) |
1126 | while (win32_Module32Next (snapshot_module, &modEntry)) | |
1127 | if ((DWORD) modEntry.modBaseAddr == BaseAddress) | |
1128 | { | |
255e7678 | 1129 | #ifdef UNICODE |
6b3d9b83 | 1130 | wcstombs (dll_name_ret, modEntry.szExePath, MAX_PATH + 1); |
255e7678 | 1131 | #else |
6b3d9b83 | 1132 | strcpy (dll_name_ret, modEntry.szExePath); |
255e7678 | 1133 | #endif |
6b3d9b83 PA |
1134 | found = 1; |
1135 | break; | |
1136 | } | |
255e7678 | 1137 | |
6b3d9b83 PA |
1138 | #ifdef _WIN32_WCE |
1139 | win32_CloseToolhelp32Snapshot (snapshot_module); | |
1140 | #else | |
255e7678 | 1141 | CloseHandle (snapshot_module); |
6b3d9b83 PA |
1142 | #endif |
1143 | return found; | |
255e7678 DJ |
1144 | } |
1145 | ||
1146 | static void | |
1147 | handle_load_dll (void) | |
1148 | { | |
1149 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
1150 | char dll_buf[MAX_PATH + 1]; | |
1151 | char *dll_name = NULL; | |
1152 | DWORD load_addr; | |
1153 | ||
1154 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; | |
1155 | ||
34d86ddd PA |
1156 | /* Windows does not report the image name of the dlls in the debug |
1157 | event on attaches. We resort to iterating over the list of | |
1158 | loaded dlls looking for a match by image base. */ | |
1159 | if (!psapi_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf)) | |
1160 | { | |
1161 | if (!server_waiting) | |
1162 | /* On some versions of Windows and Windows CE, we can't create | |
1163 | toolhelp snapshots while the inferior is stopped in a | |
1164 | LOAD_DLL_DEBUG_EVENT due to a dll load, but we can while | |
1165 | Windows is reporting the already loaded dlls. */ | |
1166 | toolhelp_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf); | |
1167 | } | |
255e7678 DJ |
1168 | |
1169 | dll_name = dll_buf; | |
1170 | ||
1171 | if (*dll_name == '\0') | |
1172 | dll_name = get_image_name (current_process_handle, | |
1173 | event->lpImageName, event->fUnicode); | |
1174 | if (!dll_name) | |
1175 | return; | |
1176 | ||
1177 | /* The symbols in a dll are offset by 0x1000, which is the | |
1178 | the offset from 0 of the first byte in an image - because | |
1179 | of the file header and the section alignment. */ | |
1180 | ||
1181 | load_addr = (DWORD) event->lpBaseOfDll + 0x1000; | |
1182 | win32_add_one_solib (dll_name, load_addr); | |
1183 | } | |
1184 | ||
1185 | static void | |
1186 | handle_unload_dll (void) | |
1187 | { | |
1188 | CORE_ADDR load_addr = | |
1189 | (CORE_ADDR) (DWORD) current_event.u.UnloadDll.lpBaseOfDll; | |
1190 | load_addr += 0x1000; | |
1191 | unloaded_dll (NULL, load_addr); | |
1192 | } | |
1193 | ||
34b34921 | 1194 | static void |
b80864fb DJ |
1195 | handle_exception (struct target_waitstatus *ourstatus) |
1196 | { | |
b80864fb DJ |
1197 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
1198 | ||
1199 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1200 | ||
b80864fb DJ |
1201 | switch (code) |
1202 | { | |
1203 | case EXCEPTION_ACCESS_VIOLATION: | |
1204 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
1205 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1206 | break; | |
1207 | case STATUS_STACK_OVERFLOW: | |
1208 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
1209 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1210 | break; | |
1211 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1212 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
1213 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1214 | break; | |
1215 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1216 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
1217 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1218 | break; | |
1219 | case STATUS_FLOAT_INEXACT_RESULT: | |
1220 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
1221 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1222 | break; | |
1223 | case STATUS_FLOAT_INVALID_OPERATION: | |
1224 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
1225 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1226 | break; | |
1227 | case STATUS_FLOAT_OVERFLOW: | |
1228 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
1229 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1230 | break; | |
1231 | case STATUS_FLOAT_STACK_CHECK: | |
1232 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
1233 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1234 | break; | |
1235 | case STATUS_FLOAT_UNDERFLOW: | |
1236 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
1237 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1238 | break; | |
1239 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
1240 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
1241 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1242 | break; | |
1243 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
1244 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
1245 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1246 | break; | |
1247 | case STATUS_INTEGER_OVERFLOW: | |
1248 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
1249 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1250 | break; | |
1251 | case EXCEPTION_BREAKPOINT: | |
1252 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
1253 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
ed50f18f PA |
1254 | #ifdef _WIN32_WCE |
1255 | /* Remove the initial breakpoint. */ | |
1256 | check_breakpoints ((CORE_ADDR) (long) current_event | |
1257 | .u.Exception.ExceptionRecord.ExceptionAddress); | |
1258 | #endif | |
b80864fb DJ |
1259 | break; |
1260 | case DBG_CONTROL_C: | |
1261 | OUTMSG2 (("DBG_CONTROL_C")); | |
1262 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1263 | break; | |
1264 | case DBG_CONTROL_BREAK: | |
1265 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
1266 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1267 | break; | |
1268 | case EXCEPTION_SINGLE_STEP: | |
1269 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
1270 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
1271 | break; | |
1272 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
1273 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
1274 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1275 | break; | |
1276 | case EXCEPTION_PRIV_INSTRUCTION: | |
1277 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
1278 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1279 | break; | |
1280 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1281 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
1282 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1283 | break; | |
1284 | default: | |
1285 | if (current_event.u.Exception.dwFirstChance) | |
34b34921 PA |
1286 | { |
1287 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1288 | return; | |
1289 | } | |
b80864fb DJ |
1290 | OUTMSG2 (("gdbserver: unknown target exception 0x%08lx at 0x%08lx", |
1291 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1292 | (DWORD) current_event.u.Exception.ExceptionRecord. | |
1293 | ExceptionAddress)); | |
1294 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
1295 | break; | |
1296 | } | |
1297 | OUTMSG2 (("\n")); | |
1298 | last_sig = ourstatus->value.sig; | |
b80864fb DJ |
1299 | } |
1300 | ||
4d5d1aaa | 1301 | |
34b34921 | 1302 | static void |
4d5d1aaa PA |
1303 | suspend_one_thread (struct inferior_list_entry *entry) |
1304 | { | |
1305 | struct thread_info *thread = (struct thread_info *) entry; | |
1306 | win32_thread_info *th = inferior_target_data (thread); | |
1307 | ||
1308 | if (!th->suspended) | |
1309 | { | |
1310 | if (SuspendThread (th->h) == (DWORD) -1) | |
1311 | { | |
1312 | DWORD err = GetLastError (); | |
1313 | OUTMSG (("warning: SuspendThread failed in suspend_one_thread, " | |
1314 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
1315 | } | |
1316 | else | |
1317 | th->suspended = 1; | |
1318 | } | |
1319 | } | |
1320 | ||
1321 | static void | |
1322 | fake_breakpoint_event (void) | |
b80864fb | 1323 | { |
4d5d1aaa | 1324 | OUTMSG2(("fake_breakpoint_event\n")); |
b80864fb | 1325 | |
4d5d1aaa PA |
1326 | faked_breakpoint = 1; |
1327 | ||
1328 | memset (¤t_event, 0, sizeof (current_event)); | |
1329 | current_event.dwThreadId = main_thread_id; | |
1330 | current_event.dwDebugEventCode = EXCEPTION_DEBUG_EVENT; | |
1331 | current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1332 | = EXCEPTION_BREAKPOINT; | |
1333 | ||
1334 | for_each_inferior (&all_threads, suspend_one_thread); | |
1335 | } | |
1336 | ||
1337 | /* Get the next event from the child. */ | |
1338 | ||
1339 | static int | |
1340 | get_child_debug_event (struct target_waitstatus *ourstatus) | |
1341 | { | |
b80864fb DJ |
1342 | last_sig = TARGET_SIGNAL_0; |
1343 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1344 | ||
4d5d1aaa PA |
1345 | /* Check if GDB sent us an interrupt request. */ |
1346 | check_remote_input_interrupt_request (); | |
1347 | ||
1348 | if (soft_interrupt_requested) | |
1349 | { | |
1350 | soft_interrupt_requested = 0; | |
1351 | fake_breakpoint_event (); | |
1352 | goto gotevent; | |
1353 | } | |
1354 | ||
d97903b2 PA |
1355 | #ifndef _WIN32_WCE |
1356 | attaching = 0; | |
1357 | #else | |
1358 | if (attaching) | |
1359 | { | |
1360 | /* WinCE doesn't set an initial breakpoint automatically. To | |
1361 | stop the inferior, we flush all currently pending debug | |
1362 | events -- the thread list and the dll list are always | |
1363 | reported immediatelly without delay, then, we suspend all | |
1364 | threads and pretend we saw a trap at the current PC of the | |
1365 | main thread. | |
1366 | ||
1367 | Contrary to desktop Windows, Windows CE *does* report the dll | |
1368 | names on LOAD_DLL_DEBUG_EVENTs resulting from a | |
1369 | DebugActiveProcess call. This limits the way we can detect | |
1370 | if all the dlls have already been reported. If we get a real | |
1371 | debug event before leaving attaching, the worst that will | |
1372 | happen is the user will see a spurious breakpoint. */ | |
1373 | ||
1374 | current_event.dwDebugEventCode = 0; | |
1375 | if (!WaitForDebugEvent (¤t_event, 0)) | |
1376 | { | |
1377 | OUTMSG2(("no attach events left\n")); | |
1378 | fake_breakpoint_event (); | |
1379 | attaching = 0; | |
1380 | } | |
1381 | else | |
1382 | OUTMSG2(("got attach event\n")); | |
1383 | } | |
1384 | else | |
1385 | #endif | |
1386 | { | |
1387 | /* Keep the wait time low enough for confortable remote | |
1388 | interruption, but high enough so gdbserver doesn't become a | |
1389 | bottleneck. */ | |
1390 | if (!WaitForDebugEvent (¤t_event, 250)) | |
1391 | return 0; | |
1392 | } | |
4d5d1aaa PA |
1393 | |
1394 | gotevent: | |
b80864fb DJ |
1395 | |
1396 | current_inferior = | |
1397 | (struct thread_info *) find_inferior_id (&all_threads, | |
1398 | current_event.dwThreadId); | |
1399 | ||
34b34921 | 1400 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
1401 | { |
1402 | case CREATE_THREAD_DEBUG_EVENT: | |
1403 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
1404 | "for pid=%d tid=%x)\n", | |
1405 | (unsigned) current_event.dwProcessId, | |
1406 | (unsigned) current_event.dwThreadId)); | |
1407 | ||
1408 | /* Record the existence of this thread. */ | |
34b34921 | 1409 | child_add_thread (current_event.dwThreadId, |
b80864fb | 1410 | current_event.u.CreateThread.hThread); |
b80864fb DJ |
1411 | break; |
1412 | ||
1413 | case EXIT_THREAD_DEBUG_EVENT: | |
1414 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
1415 | "for pid=%d tid=%x\n", | |
1416 | (unsigned) current_event.dwProcessId, | |
1417 | (unsigned) current_event.dwThreadId)); | |
1418 | child_delete_thread (current_event.dwThreadId); | |
b80864fb DJ |
1419 | break; |
1420 | ||
1421 | case CREATE_PROCESS_DEBUG_EVENT: | |
1422 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
1423 | "for pid=%d tid=%x\n", | |
1424 | (unsigned) current_event.dwProcessId, | |
1425 | (unsigned) current_event.dwThreadId)); | |
1426 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
1427 | ||
1428 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1429 | main_thread_id = current_event.dwThreadId; | |
1430 | ||
1431 | ourstatus->kind = TARGET_WAITKIND_EXECD; | |
1432 | ourstatus->value.execd_pathname = "Main executable"; | |
1433 | ||
1434 | /* Add the main thread. */ | |
34b34921 PA |
1435 | child_add_thread (main_thread_id, |
1436 | current_event.u.CreateProcessInfo.hThread); | |
b80864fb | 1437 | |
34b34921 | 1438 | ourstatus->value.related_pid = current_event.dwThreadId; |
ed50f18f | 1439 | #ifdef _WIN32_WCE |
d97903b2 PA |
1440 | if (!attaching) |
1441 | { | |
1442 | /* Windows CE doesn't set the initial breakpoint | |
1443 | automatically like the desktop versions of Windows do. | |
1444 | We add it explicitly here. It will be removed as soon as | |
1445 | it is hit. */ | |
1446 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
1447 | .CreateProcessInfo.lpStartAddress, | |
1448 | delete_breakpoint_at); | |
1449 | } | |
ed50f18f | 1450 | #endif |
b80864fb DJ |
1451 | break; |
1452 | ||
1453 | case EXIT_PROCESS_DEBUG_EVENT: | |
1454 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
1455 | "for pid=%d tid=%x\n", | |
1456 | (unsigned) current_event.dwProcessId, | |
1457 | (unsigned) current_event.dwThreadId)); | |
1458 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1459 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1460 | CloseHandle (current_process_handle); | |
9d606399 | 1461 | current_process_handle = NULL; |
b80864fb DJ |
1462 | break; |
1463 | ||
1464 | case LOAD_DLL_DEBUG_EVENT: | |
1465 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
1466 | "for pid=%d tid=%x\n", | |
1467 | (unsigned) current_event.dwProcessId, | |
1468 | (unsigned) current_event.dwThreadId)); | |
1469 | CloseHandle (current_event.u.LoadDll.hFile); | |
255e7678 | 1470 | handle_load_dll (); |
b80864fb DJ |
1471 | |
1472 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
255e7678 | 1473 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
b80864fb DJ |
1474 | break; |
1475 | ||
1476 | case UNLOAD_DLL_DEBUG_EVENT: | |
1477 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
1478 | "for pid=%d tid=%x\n", | |
1479 | (unsigned) current_event.dwProcessId, | |
1480 | (unsigned) current_event.dwThreadId)); | |
255e7678 DJ |
1481 | handle_unload_dll (); |
1482 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
1483 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
b80864fb DJ |
1484 | break; |
1485 | ||
1486 | case EXCEPTION_DEBUG_EVENT: | |
1487 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
1488 | "for pid=%d tid=%x\n", | |
1489 | (unsigned) current_event.dwProcessId, | |
1490 | (unsigned) current_event.dwThreadId)); | |
34b34921 | 1491 | handle_exception (ourstatus); |
b80864fb DJ |
1492 | break; |
1493 | ||
1494 | case OUTPUT_DEBUG_STRING_EVENT: | |
1495 | /* A message from the kernel (or Cygwin). */ | |
1496 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
1497 | "for pid=%d tid=%x\n", | |
1498 | (unsigned) current_event.dwProcessId, | |
1499 | (unsigned) current_event.dwThreadId)); | |
bce7165d | 1500 | handle_output_debug_string (ourstatus); |
b80864fb DJ |
1501 | break; |
1502 | ||
1503 | default: | |
1504 | OUTMSG2 (("gdbserver: kernel event unknown " | |
1505 | "for pid=%d tid=%x code=%ld\n", | |
1506 | (unsigned) current_event.dwProcessId, | |
1507 | (unsigned) current_event.dwThreadId, | |
1508 | current_event.dwDebugEventCode)); | |
1509 | break; | |
1510 | } | |
1511 | ||
1512 | current_inferior = | |
1513 | (struct thread_info *) find_inferior_id (&all_threads, | |
1514 | current_event.dwThreadId); | |
4d5d1aaa | 1515 | return 1; |
b80864fb DJ |
1516 | } |
1517 | ||
1518 | /* Wait for the inferior process to change state. | |
1519 | STATUS will be filled in with a response code to send to GDB. | |
1520 | Returns the signal which caused the process to stop. */ | |
1521 | static unsigned char | |
1522 | win32_wait (char *status) | |
1523 | { | |
1524 | struct target_waitstatus our_status; | |
1525 | ||
1526 | *status = 'T'; | |
1527 | ||
1528 | while (1) | |
1529 | { | |
4d5d1aaa PA |
1530 | if (!get_child_debug_event (&our_status)) |
1531 | continue; | |
b80864fb | 1532 | |
34b34921 | 1533 | switch (our_status.kind) |
b80864fb | 1534 | { |
34b34921 | 1535 | case TARGET_WAITKIND_EXITED: |
b80864fb DJ |
1536 | OUTMSG2 (("Child exited with retcode = %x\n", |
1537 | our_status.value.integer)); | |
1538 | ||
1539 | *status = 'W'; | |
b80864fb | 1540 | return our_status.value.integer; |
34b34921 | 1541 | case TARGET_WAITKIND_STOPPED: |
255e7678 | 1542 | case TARGET_WAITKIND_LOADED: |
f72f3e60 | 1543 | OUTMSG2 (("Child Stopped with signal = %d \n", |
ed50f18f | 1544 | our_status.value.sig)); |
b80864fb DJ |
1545 | |
1546 | *status = 'T'; | |
1547 | ||
1548 | child_fetch_inferior_registers (-1); | |
1549 | ||
255e7678 DJ |
1550 | if (our_status.kind == TARGET_WAITKIND_LOADED |
1551 | && !server_waiting) | |
1552 | { | |
1553 | /* When gdb connects, we want to be stopped at the | |
1554 | initial breakpoint, not in some dll load event. */ | |
1555 | child_continue (DBG_CONTINUE, -1); | |
1556 | break; | |
1557 | } | |
1558 | ||
b80864fb | 1559 | return our_status.value.sig; |
34b34921 PA |
1560 | default: |
1561 | OUTMSG (("Ignoring unknown internal event, %d\n", our_status.kind)); | |
1562 | /* fall-through */ | |
1563 | case TARGET_WAITKIND_SPURIOUS: | |
34b34921 PA |
1564 | case TARGET_WAITKIND_EXECD: |
1565 | /* do nothing, just continue */ | |
1566 | child_continue (DBG_CONTINUE, -1); | |
1567 | break; | |
b80864fb | 1568 | } |
b80864fb DJ |
1569 | } |
1570 | } | |
1571 | ||
1572 | /* Fetch registers from the inferior process. | |
1573 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
1574 | static void | |
1575 | win32_fetch_inferior_registers (int regno) | |
1576 | { | |
1577 | child_fetch_inferior_registers (regno); | |
1578 | } | |
1579 | ||
1580 | /* Store registers to the inferior process. | |
1581 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
1582 | static void | |
1583 | win32_store_inferior_registers (int regno) | |
1584 | { | |
1585 | child_store_inferior_registers (regno); | |
1586 | } | |
1587 | ||
1588 | /* Read memory from the inferior process. This should generally be | |
1589 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1590 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
1591 | static int | |
1592 | win32_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) | |
1593 | { | |
ed50f18f | 1594 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1595 | } |
1596 | ||
1597 | /* Write memory to the inferior process. This should generally be | |
1598 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1599 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1600 | Returns 0 on success and errno on failure. */ | |
1601 | static int | |
1602 | win32_write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, | |
1603 | int len) | |
1604 | { | |
1605 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1606 | } | |
1607 | ||
7390519e PA |
1608 | /* Send an interrupt request to the inferior process. */ |
1609 | static void | |
1610 | win32_request_interrupt (void) | |
1611 | { | |
1612 | winapi_DebugBreakProcess DebugBreakProcess; | |
1613 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1614 | ||
1615 | #ifdef _WIN32_WCE | |
1616 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1617 | #else | |
1618 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1619 | #endif | |
1620 | ||
1621 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1622 | ||
1623 | if (GenerateConsoleCtrlEvent != NULL | |
1624 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1625 | return; | |
1626 | ||
1627 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1628 | not a process group id. | |
1629 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1630 | breakpoint exception in the interior process. */ | |
1631 | ||
1632 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1633 | ||
1634 | if (DebugBreakProcess != NULL | |
1635 | && DebugBreakProcess (current_process_handle)) | |
1636 | return; | |
1637 | ||
4d5d1aaa PA |
1638 | /* Last resort, suspend all threads manually. */ |
1639 | soft_interrupt_requested = 1; | |
7390519e PA |
1640 | } |
1641 | ||
820f2bda PA |
1642 | static const char * |
1643 | win32_arch_string (void) | |
1644 | { | |
ed50f18f | 1645 | return the_low_target.arch_string; |
820f2bda PA |
1646 | } |
1647 | ||
b80864fb DJ |
1648 | static struct target_ops win32_target_ops = { |
1649 | win32_create_inferior, | |
1650 | win32_attach, | |
1651 | win32_kill, | |
1652 | win32_detach, | |
444d6139 | 1653 | win32_join, |
b80864fb DJ |
1654 | win32_thread_alive, |
1655 | win32_resume, | |
1656 | win32_wait, | |
1657 | win32_fetch_inferior_registers, | |
1658 | win32_store_inferior_registers, | |
1659 | win32_read_inferior_memory, | |
1660 | win32_write_inferior_memory, | |
820f2bda | 1661 | NULL, |
7390519e | 1662 | win32_request_interrupt, |
820f2bda PA |
1663 | NULL, |
1664 | NULL, | |
1665 | NULL, | |
1666 | NULL, | |
1667 | NULL, | |
1668 | NULL, | |
1669 | NULL, | |
1670 | win32_arch_string | |
b80864fb DJ |
1671 | }; |
1672 | ||
1673 | /* Initialize the Win32 backend. */ | |
1674 | void | |
1675 | initialize_low (void) | |
1676 | { | |
1677 | set_target_ops (&win32_target_ops); | |
ed50f18f PA |
1678 | if (the_low_target.breakpoint != NULL) |
1679 | set_breakpoint_data (the_low_target.breakpoint, | |
1680 | the_low_target.breakpoint_len); | |
b80864fb DJ |
1681 | init_registers (); |
1682 | } |