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b80864fb | 1 | /* Low level interface to Windows debugging, for gdbserver. |
0fb0cc75 | 2 | Copyright (C) 2006, 2007, 2008, 2009 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" | |
59a016f0 | 24 | #include "gdb/fileio.h" |
ed50f18f PA |
25 | #include "mem-break.h" |
26 | #include "win32-low.h" | |
b80864fb DJ |
27 | |
28 | #include <windows.h> | |
ed50f18f | 29 | #include <winnt.h> |
b80864fb | 30 | #include <imagehlp.h> |
255e7678 | 31 | #include <tlhelp32.h> |
b80864fb DJ |
32 | #include <psapi.h> |
33 | #include <sys/param.h> | |
34 | #include <malloc.h> | |
35 | #include <process.h> | |
36 | ||
37 | #ifndef USE_WIN32API | |
38 | #include <sys/cygwin.h> | |
39 | #endif | |
40 | ||
41 | #define LOG 0 | |
42 | ||
43 | #define OUTMSG(X) do { printf X; fflush (stdout); } while (0) | |
44 | #if LOG | |
45 | #define OUTMSG2(X) do { printf X; fflush (stdout); } while (0) | |
46 | #else | |
ed50f18f PA |
47 | #define OUTMSG2(X) do ; while (0) |
48 | #endif | |
49 | ||
50 | #ifndef _T | |
51 | #define _T(x) TEXT (x) | |
52 | #endif | |
53 | ||
54 | #ifndef COUNTOF | |
55 | #define COUNTOF(STR) (sizeof (STR) / sizeof ((STR)[0])) | |
b80864fb DJ |
56 | #endif |
57 | ||
bf914831 PA |
58 | #ifdef _WIN32_WCE |
59 | # define GETPROCADDRESS(DLL, PROC) \ | |
60 | ((winapi_ ## PROC) GetProcAddress (DLL, TEXT (#PROC))) | |
61 | #else | |
62 | # define GETPROCADDRESS(DLL, PROC) \ | |
63 | ((winapi_ ## PROC) GetProcAddress (DLL, #PROC)) | |
64 | #endif | |
65 | ||
b80864fb DJ |
66 | int using_threads = 1; |
67 | ||
68 | /* Globals. */ | |
d97903b2 | 69 | static int attaching = 0; |
b80864fb DJ |
70 | static HANDLE current_process_handle = NULL; |
71 | static DWORD current_process_id = 0; | |
5ac588cf | 72 | static DWORD main_thread_id = 0; |
b80864fb DJ |
73 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
74 | ||
75 | /* The current debug event from WaitForDebugEvent. */ | |
76 | static DEBUG_EVENT current_event; | |
77 | ||
4d5d1aaa PA |
78 | /* Non zero if an interrupt request is to be satisfied by suspending |
79 | all threads. */ | |
80 | static int soft_interrupt_requested = 0; | |
81 | ||
82 | /* Non zero if the inferior is stopped in a simulated breakpoint done | |
83 | by suspending all the threads. */ | |
84 | static int faked_breakpoint = 0; | |
85 | ||
ed50f18f | 86 | #define NUM_REGS (the_low_target.num_regs) |
b80864fb | 87 | |
bf914831 PA |
88 | typedef BOOL WINAPI (*winapi_DebugActiveProcessStop) (DWORD dwProcessId); |
89 | typedef BOOL WINAPI (*winapi_DebugSetProcessKillOnExit) (BOOL KillOnExit); | |
7390519e PA |
90 | typedef BOOL WINAPI (*winapi_DebugBreakProcess) (HANDLE); |
91 | typedef BOOL WINAPI (*winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD); | |
b80864fb | 92 | |
2bd7c093 | 93 | static void win32_resume (struct thread_resume *resume_info, size_t n); |
34b34921 | 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 | ||
bca929d3 | 179 | th = xcalloc (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 | ||
ed50f18f | 244 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
245 | state. */ |
246 | static void | |
247 | child_init_thread_list (void) | |
248 | { | |
249 | for_each_inferior (&all_threads, delete_thread_info); | |
250 | } | |
251 | ||
252 | static void | |
5ac588cf | 253 | do_initial_child_stuff (HANDLE proch, DWORD pid) |
b80864fb | 254 | { |
b80864fb DJ |
255 | last_sig = TARGET_SIGNAL_0; |
256 | ||
5ac588cf PA |
257 | current_process_handle = proch; |
258 | current_process_id = pid; | |
259 | main_thread_id = 0; | |
260 | ||
261 | soft_interrupt_requested = 0; | |
262 | faked_breakpoint = 0; | |
263 | ||
b80864fb DJ |
264 | memset (¤t_event, 0, sizeof (current_event)); |
265 | ||
266 | child_init_thread_list (); | |
ed50f18f PA |
267 | |
268 | if (the_low_target.initial_stuff != NULL) | |
269 | (*the_low_target.initial_stuff) (); | |
b80864fb DJ |
270 | } |
271 | ||
272 | /* Resume all artificially suspended threads if we are continuing | |
273 | execution. */ | |
274 | static int | |
275 | continue_one_thread (struct inferior_list_entry *this_thread, void *id_ptr) | |
276 | { | |
277 | struct thread_info *thread = (struct thread_info *) this_thread; | |
278 | int thread_id = * (int *) id_ptr; | |
41093d81 | 279 | win32_thread_info *th = inferior_target_data (thread); |
b80864fb DJ |
280 | |
281 | if ((thread_id == -1 || thread_id == th->tid) | |
c436e841 | 282 | && th->suspended) |
b80864fb | 283 | { |
34b34921 | 284 | if (th->context.ContextFlags) |
b80864fb | 285 | { |
9c6c8194 | 286 | win32_set_thread_context (th); |
b80864fb DJ |
287 | th->context.ContextFlags = 0; |
288 | } | |
34b34921 | 289 | |
c436e841 PA |
290 | if (ResumeThread (th->h) == (DWORD) -1) |
291 | { | |
292 | DWORD err = GetLastError (); | |
293 | OUTMSG (("warning: ResumeThread failed in continue_one_thread, " | |
294 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
295 | } | |
296 | th->suspended = 0; | |
b80864fb DJ |
297 | } |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
302 | static BOOL | |
303 | child_continue (DWORD continue_status, int thread_id) | |
304 | { | |
4d5d1aaa PA |
305 | /* The inferior will only continue after the ContinueDebugEvent |
306 | call. */ | |
307 | find_inferior (&all_threads, continue_one_thread, &thread_id); | |
308 | faked_breakpoint = 0; | |
b80864fb | 309 | |
4d5d1aaa PA |
310 | if (!ContinueDebugEvent (current_event.dwProcessId, |
311 | current_event.dwThreadId, | |
312 | continue_status)) | |
313 | return FALSE; | |
b80864fb | 314 | |
4d5d1aaa | 315 | return TRUE; |
b80864fb DJ |
316 | } |
317 | ||
b80864fb DJ |
318 | /* Fetch register(s) from the current thread context. */ |
319 | static void | |
320 | child_fetch_inferior_registers (int r) | |
321 | { | |
322 | int regno; | |
41093d81 | 323 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
324 | if (r == -1 || r == 0 || r > NUM_REGS) |
325 | child_fetch_inferior_registers (NUM_REGS); | |
326 | else | |
327 | for (regno = 0; regno < r; regno++) | |
34b34921 | 328 | (*the_low_target.fetch_inferior_register) (th, regno); |
b80864fb DJ |
329 | } |
330 | ||
331 | /* Store a new register value into the current thread context. We don't | |
332 | change the program's context until later, when we resume it. */ | |
333 | static void | |
334 | child_store_inferior_registers (int r) | |
335 | { | |
336 | int regno; | |
41093d81 | 337 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
338 | if (r == -1 || r == 0 || r > NUM_REGS) |
339 | child_store_inferior_registers (NUM_REGS); | |
340 | else | |
341 | for (regno = 0; regno < r; regno++) | |
34b34921 | 342 | (*the_low_target.store_inferior_register) (th, regno); |
b80864fb DJ |
343 | } |
344 | ||
ed50f18f PA |
345 | /* Map the Windows error number in ERROR to a locale-dependent error |
346 | message string and return a pointer to it. Typically, the values | |
347 | for ERROR come from GetLastError. | |
348 | ||
349 | The string pointed to shall not be modified by the application, | |
350 | but may be overwritten by a subsequent call to strwinerror | |
351 | ||
352 | The strwinerror function does not change the current setting | |
353 | of GetLastError. */ | |
354 | ||
355 | char * | |
356 | strwinerror (DWORD error) | |
357 | { | |
358 | static char buf[1024]; | |
359 | TCHAR *msgbuf; | |
360 | DWORD lasterr = GetLastError (); | |
361 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
362 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
363 | NULL, | |
364 | error, | |
365 | 0, /* Default language */ | |
366 | (LPVOID)&msgbuf, | |
367 | 0, | |
368 | NULL); | |
369 | if (chars != 0) | |
370 | { | |
371 | /* If there is an \r\n appended, zap it. */ | |
372 | if (chars >= 2 | |
373 | && msgbuf[chars - 2] == '\r' | |
374 | && msgbuf[chars - 1] == '\n') | |
375 | { | |
376 | chars -= 2; | |
377 | msgbuf[chars] = 0; | |
378 | } | |
379 | ||
380 | if (chars > ((COUNTOF (buf)) - 1)) | |
381 | { | |
382 | chars = COUNTOF (buf) - 1; | |
383 | msgbuf [chars] = 0; | |
384 | } | |
385 | ||
386 | #ifdef UNICODE | |
387 | wcstombs (buf, msgbuf, chars + 1); | |
388 | #else | |
389 | strncpy (buf, msgbuf, chars + 1); | |
390 | #endif | |
391 | LocalFree (msgbuf); | |
392 | } | |
393 | else | |
394 | sprintf (buf, "unknown win32 error (%ld)", error); | |
395 | ||
396 | SetLastError (lasterr); | |
397 | return buf; | |
398 | } | |
399 | ||
aec18585 PA |
400 | static BOOL |
401 | create_process (const char *program, char *args, | |
402 | DWORD flags, PROCESS_INFORMATION *pi) | |
403 | { | |
404 | BOOL ret; | |
405 | ||
406 | #ifdef _WIN32_WCE | |
407 | wchar_t *p, *wprogram, *wargs; | |
408 | size_t argslen; | |
409 | ||
410 | wprogram = alloca ((strlen (program) + 1) * sizeof (wchar_t)); | |
411 | mbstowcs (wprogram, program, strlen (program) + 1); | |
412 | ||
413 | for (p = wprogram; *p; ++p) | |
414 | if (L'/' == *p) | |
415 | *p = L'\\'; | |
416 | ||
417 | argslen = strlen (args); | |
418 | wargs = alloca ((argslen + 1) * sizeof (wchar_t)); | |
419 | mbstowcs (wargs, args, argslen + 1); | |
420 | ||
421 | ret = CreateProcessW (wprogram, /* image name */ | |
1b3f6016 PA |
422 | wargs, /* command line */ |
423 | NULL, /* security, not supported */ | |
424 | NULL, /* thread, not supported */ | |
425 | FALSE, /* inherit handles, not supported */ | |
426 | flags, /* start flags */ | |
427 | NULL, /* environment, not supported */ | |
428 | NULL, /* current directory, not supported */ | |
429 | NULL, /* start info, not supported */ | |
430 | pi); /* proc info */ | |
aec18585 PA |
431 | #else |
432 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; | |
433 | ||
434 | ret = CreateProcessA (program, /* image name */ | |
435 | args, /* command line */ | |
436 | NULL, /* security */ | |
437 | NULL, /* thread */ | |
438 | TRUE, /* inherit handles */ | |
439 | flags, /* start flags */ | |
440 | NULL, /* environment */ | |
441 | NULL, /* current directory */ | |
442 | &si, /* start info */ | |
443 | pi); /* proc info */ | |
444 | #endif | |
445 | ||
446 | return ret; | |
447 | } | |
448 | ||
b80864fb DJ |
449 | /* Start a new process. |
450 | PROGRAM is a path to the program to execute. | |
451 | ARGS is a standard NULL-terminated array of arguments, | |
452 | to be passed to the inferior as ``argv''. | |
453 | Returns the new PID on success, -1 on failure. Registers the new | |
454 | process with the process list. */ | |
455 | static int | |
456 | win32_create_inferior (char *program, char **program_args) | |
457 | { | |
458 | #ifndef USE_WIN32API | |
459 | char real_path[MAXPATHLEN]; | |
460 | char *orig_path, *new_path, *path_ptr; | |
461 | #endif | |
b80864fb DJ |
462 | BOOL ret; |
463 | DWORD flags; | |
464 | char *args; | |
465 | int argslen; | |
466 | int argc; | |
ed50f18f | 467 | PROCESS_INFORMATION pi; |
aec18585 | 468 | DWORD err; |
b80864fb | 469 | |
d97903b2 PA |
470 | /* win32_wait needs to know we're not attaching. */ |
471 | attaching = 0; | |
472 | ||
b80864fb DJ |
473 | if (!program) |
474 | error ("No executable specified, specify executable to debug.\n"); | |
475 | ||
b80864fb DJ |
476 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
477 | ||
478 | #ifndef USE_WIN32API | |
479 | orig_path = NULL; | |
480 | path_ptr = getenv ("PATH"); | |
481 | if (path_ptr) | |
482 | { | |
483 | orig_path = alloca (strlen (path_ptr) + 1); | |
484 | new_path = alloca (cygwin_posix_to_win32_path_list_buf_size (path_ptr)); | |
485 | strcpy (orig_path, path_ptr); | |
486 | cygwin_posix_to_win32_path_list (path_ptr, new_path); | |
487 | setenv ("PATH", new_path, 1); | |
488 | } | |
489 | cygwin_conv_to_win32_path (program, real_path); | |
490 | program = real_path; | |
491 | #endif | |
492 | ||
ed50f18f | 493 | argslen = 1; |
b80864fb DJ |
494 | for (argc = 1; program_args[argc]; argc++) |
495 | argslen += strlen (program_args[argc]) + 1; | |
496 | args = alloca (argslen); | |
ed50f18f | 497 | args[0] = '\0'; |
b80864fb DJ |
498 | for (argc = 1; program_args[argc]; argc++) |
499 | { | |
500 | /* FIXME: Can we do better about quoting? How does Cygwin | |
1b3f6016 | 501 | handle this? */ |
b80864fb DJ |
502 | strcat (args, " "); |
503 | strcat (args, program_args[argc]); | |
504 | } | |
ed50f18f | 505 | OUTMSG2 (("Command line is \"%s\"\n", args)); |
b80864fb | 506 | |
ed50f18f | 507 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 508 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 509 | #endif |
b80864fb | 510 | |
aec18585 PA |
511 | ret = create_process (program, args, flags, &pi); |
512 | err = GetLastError (); | |
513 | if (!ret && err == ERROR_FILE_NOT_FOUND) | |
514 | { | |
515 | char *exename = alloca (strlen (program) + 5); | |
516 | strcat (strcpy (exename, program), ".exe"); | |
517 | ret = create_process (exename, args, flags, &pi); | |
518 | err = GetLastError (); | |
519 | } | |
b80864fb DJ |
520 | |
521 | #ifndef USE_WIN32API | |
522 | if (orig_path) | |
523 | setenv ("PATH", orig_path, 1); | |
524 | #endif | |
525 | ||
526 | if (!ret) | |
527 | { | |
ed50f18f PA |
528 | error ("Error creating process \"%s%s\", (error %d): %s\n", |
529 | program, args, (int) err, strwinerror (err)); | |
b80864fb DJ |
530 | } |
531 | else | |
532 | { | |
533 | OUTMSG2 (("Process created: %s\n", (char *) args)); | |
534 | } | |
535 | ||
ed50f18f PA |
536 | #ifndef _WIN32_WCE |
537 | /* On Windows CE this handle can't be closed. The OS reuses | |
538 | it in the debug events, while the 9x/NT versions of Windows | |
539 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 540 | CloseHandle (pi.hThread); |
ed50f18f | 541 | #endif |
b80864fb | 542 | |
5ac588cf | 543 | do_initial_child_stuff (pi.hProcess, pi.dwProcessId); |
b80864fb DJ |
544 | |
545 | return current_process_id; | |
546 | } | |
547 | ||
548 | /* Attach to a running process. | |
549 | PID is the process ID to attach to, specified by the user | |
550 | or a higher layer. */ | |
551 | static int | |
552 | win32_attach (unsigned long pid) | |
553 | { | |
5ca906e6 | 554 | HANDLE h; |
bf914831 | 555 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; |
5ca906e6 | 556 | DWORD err; |
ed50f18f PA |
557 | #ifdef _WIN32_WCE |
558 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
559 | #else | |
560 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
561 | #endif | |
bf914831 | 562 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); |
b80864fb | 563 | |
5ca906e6 PA |
564 | h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
565 | if (h != NULL) | |
1d5315fe | 566 | { |
5ca906e6 PA |
567 | if (DebugActiveProcess (pid)) |
568 | { | |
569 | if (DebugSetProcessKillOnExit != NULL) | |
570 | DebugSetProcessKillOnExit (FALSE); | |
571 | ||
d97903b2 | 572 | /* win32_wait needs to know we're attaching. */ |
1b3f6016 | 573 | attaching = 1; |
5ac588cf | 574 | do_initial_child_stuff (h, pid); |
5ca906e6 PA |
575 | return 0; |
576 | } | |
577 | ||
578 | CloseHandle (h); | |
b80864fb DJ |
579 | } |
580 | ||
5ca906e6 PA |
581 | err = GetLastError (); |
582 | error ("Attach to process failed (error %d): %s\n", | |
583 | (int) err, strwinerror (err)); | |
b80864fb DJ |
584 | } |
585 | ||
bce7165d PA |
586 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
587 | static void | |
588 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
589 | { | |
590 | #define READ_BUFFER_LEN 1024 | |
591 | CORE_ADDR addr; | |
592 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
593 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
594 | ||
595 | if (nbytes == 0) | |
596 | return; | |
597 | ||
598 | if (nbytes > READ_BUFFER_LEN) | |
599 | nbytes = READ_BUFFER_LEN; | |
600 | ||
601 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
602 | ||
603 | if (current_event.u.DebugString.fUnicode) | |
604 | { | |
605 | /* The event tells us how many bytes, not chars, even | |
1b3f6016 | 606 | in Unicode. */ |
bce7165d PA |
607 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; |
608 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
609 | return; | |
610 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
611 | } | |
612 | else | |
613 | { | |
614 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
615 | return; | |
616 | } | |
617 | ||
618 | if (strncmp (s, "cYg", 3) != 0) | |
45e2715e PA |
619 | { |
620 | if (!server_waiting) | |
621 | { | |
622 | OUTMSG2(("%s", s)); | |
623 | return; | |
624 | } | |
625 | ||
626 | monitor_output (s); | |
627 | } | |
bce7165d PA |
628 | #undef READ_BUFFER_LEN |
629 | } | |
630 | ||
5ac588cf PA |
631 | static void |
632 | win32_clear_inferiors (void) | |
633 | { | |
634 | if (current_process_handle != NULL) | |
635 | CloseHandle (current_process_handle); | |
636 | ||
637 | for_each_inferior (&all_threads, delete_thread_info); | |
638 | clear_inferiors (); | |
639 | } | |
640 | ||
b80864fb DJ |
641 | /* Kill all inferiors. */ |
642 | static void | |
643 | win32_kill (void) | |
644 | { | |
9d606399 DJ |
645 | if (current_process_handle == NULL) |
646 | return; | |
647 | ||
b80864fb DJ |
648 | TerminateProcess (current_process_handle, 0); |
649 | for (;;) | |
650 | { | |
651 | if (!child_continue (DBG_CONTINUE, -1)) | |
652 | break; | |
653 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
654 | break; | |
655 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
656 | break; | |
bce7165d PA |
657 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
658 | { | |
1b3f6016 | 659 | struct target_waitstatus our_status = { 0 }; |
bce7165d | 660 | handle_output_debug_string (&our_status); |
1b3f6016 | 661 | } |
b80864fb | 662 | } |
ed50f18f | 663 | |
5ac588cf | 664 | win32_clear_inferiors (); |
b80864fb DJ |
665 | } |
666 | ||
667 | /* Detach from all inferiors. */ | |
444d6139 | 668 | static int |
b80864fb DJ |
669 | win32_detach (void) |
670 | { | |
bf914831 PA |
671 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
672 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
673 | #ifdef _WIN32_WCE |
674 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
675 | #else | |
676 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
677 | #endif | |
bf914831 PA |
678 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
679 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 680 | |
444d6139 PA |
681 | if (DebugSetProcessKillOnExit == NULL |
682 | || DebugActiveProcessStop == NULL) | |
683 | return -1; | |
b80864fb | 684 | |
444d6139 PA |
685 | { |
686 | struct thread_resume resume; | |
687 | resume.thread = -1; | |
688 | resume.step = 0; | |
689 | resume.sig = 0; | |
2bd7c093 | 690 | win32_resume (&resume, 1); |
444d6139 PA |
691 | } |
692 | ||
693 | if (!DebugActiveProcessStop (current_process_id)) | |
5ac588cf PA |
694 | return -1; |
695 | ||
444d6139 PA |
696 | DebugSetProcessKillOnExit (FALSE); |
697 | ||
5ac588cf | 698 | win32_clear_inferiors (); |
444d6139 PA |
699 | return 0; |
700 | } | |
701 | ||
702 | /* Wait for inferiors to end. */ | |
703 | static void | |
704 | win32_join (void) | |
705 | { | |
5ac588cf | 706 | extern unsigned long signal_pid; |
444d6139 | 707 | |
5ac588cf PA |
708 | HANDLE h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, signal_pid); |
709 | if (h != NULL) | |
710 | { | |
711 | WaitForSingleObject (h, INFINITE); | |
712 | CloseHandle (h); | |
713 | } | |
b80864fb DJ |
714 | } |
715 | ||
716 | /* Return 1 iff the thread with thread ID TID is alive. */ | |
717 | static int | |
718 | win32_thread_alive (unsigned long tid) | |
719 | { | |
720 | int res; | |
721 | ||
722 | /* Our thread list is reliable; don't bother to poll target | |
723 | threads. */ | |
724 | if (find_inferior_id (&all_threads, tid) != NULL) | |
725 | res = 1; | |
726 | else | |
727 | res = 0; | |
728 | return res; | |
729 | } | |
730 | ||
731 | /* Resume the inferior process. RESUME_INFO describes how we want | |
732 | to resume. */ | |
733 | static void | |
2bd7c093 | 734 | win32_resume (struct thread_resume *resume_info, size_t n) |
b80864fb DJ |
735 | { |
736 | DWORD tid; | |
737 | enum target_signal sig; | |
738 | int step; | |
41093d81 | 739 | win32_thread_info *th; |
b80864fb DJ |
740 | DWORD continue_status = DBG_CONTINUE; |
741 | ||
742 | /* This handles the very limited set of resume packets that GDB can | |
743 | currently produce. */ | |
744 | ||
2bd7c093 | 745 | if (n == 1 && resume_info[0].thread == -1) |
b80864fb | 746 | tid = -1; |
2bd7c093 | 747 | else if (n > 1) |
b80864fb DJ |
748 | tid = -1; |
749 | else | |
750 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
751 | the Windows resume code do the right thing for thread switching. */ | |
752 | tid = current_event.dwThreadId; | |
753 | ||
754 | if (resume_info[0].thread != -1) | |
755 | { | |
756 | sig = resume_info[0].sig; | |
757 | step = resume_info[0].step; | |
758 | } | |
759 | else | |
760 | { | |
761 | sig = 0; | |
762 | step = 0; | |
763 | } | |
764 | ||
765 | if (sig != TARGET_SIGNAL_0) | |
766 | { | |
767 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
768 | { | |
769 | OUTMSG (("Cannot continue with signal %d here.\n", sig)); | |
770 | } | |
771 | else if (sig == last_sig) | |
772 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
773 | else | |
774 | OUTMSG (("Can only continue with recieved signal %d.\n", last_sig)); | |
775 | } | |
776 | ||
777 | last_sig = TARGET_SIGNAL_0; | |
778 | ||
779 | /* Get context for the currently selected thread. */ | |
780 | th = thread_rec (current_event.dwThreadId, FALSE); | |
781 | if (th) | |
782 | { | |
783 | if (th->context.ContextFlags) | |
784 | { | |
b80864fb DJ |
785 | /* Move register values from the inferior into the thread |
786 | context structure. */ | |
787 | regcache_invalidate (); | |
788 | ||
789 | if (step) | |
ed50f18f PA |
790 | { |
791 | if (the_low_target.single_step != NULL) | |
792 | (*the_low_target.single_step) (th); | |
793 | else | |
794 | error ("Single stepping is not supported " | |
795 | "in this configuration.\n"); | |
796 | } | |
34b34921 | 797 | |
9c6c8194 | 798 | win32_set_thread_context (th); |
b80864fb DJ |
799 | th->context.ContextFlags = 0; |
800 | } | |
801 | } | |
802 | ||
803 | /* Allow continuing with the same signal that interrupted us. | |
804 | Otherwise complain. */ | |
805 | ||
806 | child_continue (continue_status, tid); | |
807 | } | |
808 | ||
255e7678 DJ |
809 | static void |
810 | win32_add_one_solib (const char *name, CORE_ADDR load_addr) | |
811 | { | |
812 | char buf[MAX_PATH + 1]; | |
813 | char buf2[MAX_PATH + 1]; | |
814 | ||
815 | #ifdef _WIN32_WCE | |
816 | WIN32_FIND_DATA w32_fd; | |
817 | WCHAR wname[MAX_PATH + 1]; | |
818 | mbstowcs (wname, name, MAX_PATH); | |
819 | HANDLE h = FindFirstFile (wname, &w32_fd); | |
820 | #else | |
821 | WIN32_FIND_DATAA w32_fd; | |
822 | HANDLE h = FindFirstFileA (name, &w32_fd); | |
823 | #endif | |
824 | ||
825 | if (h == INVALID_HANDLE_VALUE) | |
826 | strcpy (buf, name); | |
827 | else | |
828 | { | |
829 | FindClose (h); | |
830 | strcpy (buf, name); | |
831 | #ifndef _WIN32_WCE | |
832 | { | |
833 | char cwd[MAX_PATH + 1]; | |
834 | char *p; | |
835 | if (GetCurrentDirectoryA (MAX_PATH + 1, cwd)) | |
836 | { | |
837 | p = strrchr (buf, '\\'); | |
838 | if (p) | |
839 | p[1] = '\0'; | |
840 | SetCurrentDirectoryA (buf); | |
841 | GetFullPathNameA (w32_fd.cFileName, MAX_PATH, buf, &p); | |
842 | SetCurrentDirectoryA (cwd); | |
843 | } | |
844 | } | |
845 | #endif | |
846 | } | |
847 | ||
848 | #ifdef __CYGWIN__ | |
849 | cygwin_conv_to_posix_path (buf, buf2); | |
850 | #else | |
851 | strcpy (buf2, buf); | |
852 | #endif | |
853 | ||
854 | loaded_dll (buf2, load_addr); | |
855 | } | |
856 | ||
857 | static char * | |
858 | get_image_name (HANDLE h, void *address, int unicode) | |
859 | { | |
860 | static char buf[(2 * MAX_PATH) + 1]; | |
861 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
862 | char *address_ptr; | |
863 | int len = 0; | |
864 | char b[2]; | |
865 | DWORD done; | |
866 | ||
867 | /* Attempt to read the name of the dll that was detected. | |
868 | This is documented to work only when actively debugging | |
869 | a program. It will not work for attached processes. */ | |
870 | if (address == NULL) | |
871 | return NULL; | |
872 | ||
873 | #ifdef _WIN32_WCE | |
874 | /* Windows CE reports the address of the image name, | |
875 | instead of an address of a pointer into the image name. */ | |
876 | address_ptr = address; | |
877 | #else | |
878 | /* See if we could read the address of a string, and that the | |
879 | address isn't null. */ | |
880 | if (!ReadProcessMemory (h, address, &address_ptr, | |
881 | sizeof (address_ptr), &done) | |
882 | || done != sizeof (address_ptr) | |
883 | || !address_ptr) | |
884 | return NULL; | |
885 | #endif | |
886 | ||
887 | /* Find the length of the string */ | |
888 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) | |
889 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
890 | continue; | |
891 | ||
892 | if (!unicode) | |
893 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
894 | else | |
895 | { | |
896 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
897 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
898 | &done); | |
899 | ||
900 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
901 | } | |
902 | ||
903 | return buf; | |
904 | } | |
905 | ||
906 | typedef BOOL (WINAPI *winapi_EnumProcessModules) (HANDLE, HMODULE *, | |
907 | DWORD, LPDWORD); | |
908 | typedef BOOL (WINAPI *winapi_GetModuleInformation) (HANDLE, HMODULE, | |
909 | LPMODULEINFO, DWORD); | |
910 | typedef DWORD (WINAPI *winapi_GetModuleFileNameExA) (HANDLE, HMODULE, | |
911 | LPSTR, DWORD); | |
912 | ||
913 | static winapi_EnumProcessModules win32_EnumProcessModules; | |
914 | static winapi_GetModuleInformation win32_GetModuleInformation; | |
915 | static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA; | |
916 | ||
917 | static BOOL | |
918 | load_psapi (void) | |
919 | { | |
920 | static int psapi_loaded = 0; | |
921 | static HMODULE dll = NULL; | |
922 | ||
923 | if (!psapi_loaded) | |
924 | { | |
925 | psapi_loaded = 1; | |
926 | dll = LoadLibrary (TEXT("psapi.dll")); | |
927 | if (!dll) | |
928 | return FALSE; | |
929 | win32_EnumProcessModules = | |
930 | GETPROCADDRESS (dll, EnumProcessModules); | |
931 | win32_GetModuleInformation = | |
932 | GETPROCADDRESS (dll, GetModuleInformation); | |
933 | win32_GetModuleFileNameExA = | |
934 | GETPROCADDRESS (dll, GetModuleFileNameExA); | |
935 | } | |
936 | ||
937 | return (win32_EnumProcessModules != NULL | |
938 | && win32_GetModuleInformation != NULL | |
939 | && win32_GetModuleFileNameExA != NULL); | |
940 | } | |
941 | ||
942 | static int | |
943 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
944 | { | |
945 | DWORD len; | |
946 | MODULEINFO mi; | |
947 | size_t i; | |
948 | HMODULE dh_buf[1]; | |
949 | HMODULE *DllHandle = dh_buf; | |
950 | DWORD cbNeeded; | |
951 | BOOL ok; | |
952 | ||
953 | if (!load_psapi ()) | |
954 | goto failed; | |
955 | ||
956 | cbNeeded = 0; | |
957 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
958 | DllHandle, | |
959 | sizeof (HMODULE), | |
960 | &cbNeeded); | |
961 | ||
962 | if (!ok || !cbNeeded) | |
963 | goto failed; | |
964 | ||
965 | DllHandle = (HMODULE *) alloca (cbNeeded); | |
966 | if (!DllHandle) | |
967 | goto failed; | |
968 | ||
969 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
970 | DllHandle, | |
971 | cbNeeded, | |
972 | &cbNeeded); | |
973 | if (!ok) | |
974 | goto failed; | |
975 | ||
976 | for (i = 0; i < ((size_t) cbNeeded / sizeof (HMODULE)); i++) | |
977 | { | |
978 | if (!(*win32_GetModuleInformation) (current_process_handle, | |
979 | DllHandle[i], | |
980 | &mi, | |
981 | sizeof (mi))) | |
982 | { | |
983 | DWORD err = GetLastError (); | |
984 | error ("Can't get module info: (error %d): %s\n", | |
985 | (int) err, strwinerror (err)); | |
986 | } | |
987 | ||
988 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
989 | { | |
990 | len = (*win32_GetModuleFileNameExA) (current_process_handle, | |
991 | DllHandle[i], | |
992 | dll_name_ret, | |
993 | MAX_PATH); | |
994 | if (len == 0) | |
995 | { | |
996 | DWORD err = GetLastError (); | |
997 | error ("Error getting dll name: (error %d): %s\n", | |
998 | (int) err, strwinerror (err)); | |
999 | } | |
1000 | return 1; | |
1001 | } | |
1002 | } | |
1003 | ||
1004 | failed: | |
1005 | dll_name_ret[0] = '\0'; | |
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | typedef HANDLE (WINAPI *winapi_CreateToolhelp32Snapshot) (DWORD, DWORD); | |
1010 | typedef BOOL (WINAPI *winapi_Module32First) (HANDLE, LPMODULEENTRY32); | |
1011 | typedef BOOL (WINAPI *winapi_Module32Next) (HANDLE, LPMODULEENTRY32); | |
1012 | ||
1013 | static winapi_CreateToolhelp32Snapshot win32_CreateToolhelp32Snapshot; | |
1014 | static winapi_Module32First win32_Module32First; | |
1015 | static winapi_Module32Next win32_Module32Next; | |
6b3d9b83 PA |
1016 | #ifdef _WIN32_WCE |
1017 | typedef BOOL (WINAPI *winapi_CloseToolhelp32Snapshot) (HANDLE); | |
1018 | static winapi_CloseToolhelp32Snapshot win32_CloseToolhelp32Snapshot; | |
1019 | #endif | |
255e7678 DJ |
1020 | |
1021 | static BOOL | |
1022 | load_toolhelp (void) | |
1023 | { | |
1024 | static int toolhelp_loaded = 0; | |
1025 | static HMODULE dll = NULL; | |
1026 | ||
1027 | if (!toolhelp_loaded) | |
1028 | { | |
1029 | toolhelp_loaded = 1; | |
1030 | #ifndef _WIN32_WCE | |
1031 | dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1032 | #else | |
6b3d9b83 | 1033 | dll = LoadLibrary (L"TOOLHELP.DLL"); |
255e7678 DJ |
1034 | #endif |
1035 | if (!dll) | |
1036 | return FALSE; | |
1037 | ||
1038 | win32_CreateToolhelp32Snapshot = | |
1039 | GETPROCADDRESS (dll, CreateToolhelp32Snapshot); | |
1040 | win32_Module32First = GETPROCADDRESS (dll, Module32First); | |
1041 | win32_Module32Next = GETPROCADDRESS (dll, Module32Next); | |
6b3d9b83 PA |
1042 | #ifdef _WIN32_WCE |
1043 | win32_CloseToolhelp32Snapshot = | |
1044 | GETPROCADDRESS (dll, CloseToolhelp32Snapshot); | |
1045 | #endif | |
255e7678 DJ |
1046 | } |
1047 | ||
1048 | return (win32_CreateToolhelp32Snapshot != NULL | |
1049 | && win32_Module32First != NULL | |
6b3d9b83 PA |
1050 | && win32_Module32Next != NULL |
1051 | #ifdef _WIN32_WCE | |
1052 | && win32_CloseToolhelp32Snapshot != NULL | |
1053 | #endif | |
1054 | ); | |
255e7678 DJ |
1055 | } |
1056 | ||
1057 | static int | |
1058 | toolhelp_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
1059 | { | |
1060 | HANDLE snapshot_module; | |
1061 | MODULEENTRY32 modEntry = { sizeof (MODULEENTRY32) }; | |
6b3d9b83 | 1062 | int found = 0; |
255e7678 DJ |
1063 | |
1064 | if (!load_toolhelp ()) | |
1065 | return 0; | |
1066 | ||
1067 | snapshot_module = win32_CreateToolhelp32Snapshot (TH32CS_SNAPMODULE, | |
1068 | current_event.dwProcessId); | |
1069 | if (snapshot_module == INVALID_HANDLE_VALUE) | |
1070 | return 0; | |
1071 | ||
1072 | /* Ignore the first module, which is the exe. */ | |
6b3d9b83 PA |
1073 | if (win32_Module32First (snapshot_module, &modEntry)) |
1074 | while (win32_Module32Next (snapshot_module, &modEntry)) | |
1075 | if ((DWORD) modEntry.modBaseAddr == BaseAddress) | |
1076 | { | |
255e7678 | 1077 | #ifdef UNICODE |
6b3d9b83 | 1078 | wcstombs (dll_name_ret, modEntry.szExePath, MAX_PATH + 1); |
255e7678 | 1079 | #else |
6b3d9b83 | 1080 | strcpy (dll_name_ret, modEntry.szExePath); |
255e7678 | 1081 | #endif |
6b3d9b83 PA |
1082 | found = 1; |
1083 | break; | |
1084 | } | |
255e7678 | 1085 | |
6b3d9b83 PA |
1086 | #ifdef _WIN32_WCE |
1087 | win32_CloseToolhelp32Snapshot (snapshot_module); | |
1088 | #else | |
255e7678 | 1089 | CloseHandle (snapshot_module); |
6b3d9b83 PA |
1090 | #endif |
1091 | return found; | |
255e7678 DJ |
1092 | } |
1093 | ||
1094 | static void | |
1095 | handle_load_dll (void) | |
1096 | { | |
1097 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
1098 | char dll_buf[MAX_PATH + 1]; | |
1099 | char *dll_name = NULL; | |
1100 | DWORD load_addr; | |
1101 | ||
1102 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; | |
1103 | ||
34d86ddd PA |
1104 | /* Windows does not report the image name of the dlls in the debug |
1105 | event on attaches. We resort to iterating over the list of | |
1106 | loaded dlls looking for a match by image base. */ | |
1107 | if (!psapi_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf)) | |
1108 | { | |
1109 | if (!server_waiting) | |
1110 | /* On some versions of Windows and Windows CE, we can't create | |
1111 | toolhelp snapshots while the inferior is stopped in a | |
1112 | LOAD_DLL_DEBUG_EVENT due to a dll load, but we can while | |
1113 | Windows is reporting the already loaded dlls. */ | |
1114 | toolhelp_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf); | |
1115 | } | |
255e7678 DJ |
1116 | |
1117 | dll_name = dll_buf; | |
1118 | ||
1119 | if (*dll_name == '\0') | |
1120 | dll_name = get_image_name (current_process_handle, | |
1121 | event->lpImageName, event->fUnicode); | |
1122 | if (!dll_name) | |
1123 | return; | |
1124 | ||
1125 | /* The symbols in a dll are offset by 0x1000, which is the | |
1126 | the offset from 0 of the first byte in an image - because | |
1127 | of the file header and the section alignment. */ | |
1128 | ||
1129 | load_addr = (DWORD) event->lpBaseOfDll + 0x1000; | |
1130 | win32_add_one_solib (dll_name, load_addr); | |
1131 | } | |
1132 | ||
1133 | static void | |
1134 | handle_unload_dll (void) | |
1135 | { | |
1136 | CORE_ADDR load_addr = | |
1137 | (CORE_ADDR) (DWORD) current_event.u.UnloadDll.lpBaseOfDll; | |
1138 | load_addr += 0x1000; | |
1139 | unloaded_dll (NULL, load_addr); | |
1140 | } | |
1141 | ||
34b34921 | 1142 | static void |
b80864fb DJ |
1143 | handle_exception (struct target_waitstatus *ourstatus) |
1144 | { | |
b80864fb DJ |
1145 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
1146 | ||
1147 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1148 | ||
b80864fb DJ |
1149 | switch (code) |
1150 | { | |
1151 | case EXCEPTION_ACCESS_VIOLATION: | |
1152 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
1153 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1154 | break; | |
1155 | case STATUS_STACK_OVERFLOW: | |
1156 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
1157 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1158 | break; | |
1159 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1160 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
1161 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1162 | break; | |
1163 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1164 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
1165 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1166 | break; | |
1167 | case STATUS_FLOAT_INEXACT_RESULT: | |
1168 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
1169 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1170 | break; | |
1171 | case STATUS_FLOAT_INVALID_OPERATION: | |
1172 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
1173 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1174 | break; | |
1175 | case STATUS_FLOAT_OVERFLOW: | |
1176 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
1177 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1178 | break; | |
1179 | case STATUS_FLOAT_STACK_CHECK: | |
1180 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
1181 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1182 | break; | |
1183 | case STATUS_FLOAT_UNDERFLOW: | |
1184 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
1185 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1186 | break; | |
1187 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
1188 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
1189 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1190 | break; | |
1191 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
1192 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
1193 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1194 | break; | |
1195 | case STATUS_INTEGER_OVERFLOW: | |
1196 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
1197 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1198 | break; | |
1199 | case EXCEPTION_BREAKPOINT: | |
1200 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
1201 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
ed50f18f PA |
1202 | #ifdef _WIN32_WCE |
1203 | /* Remove the initial breakpoint. */ | |
1204 | check_breakpoints ((CORE_ADDR) (long) current_event | |
1b3f6016 | 1205 | .u.Exception.ExceptionRecord.ExceptionAddress); |
ed50f18f | 1206 | #endif |
b80864fb DJ |
1207 | break; |
1208 | case DBG_CONTROL_C: | |
1209 | OUTMSG2 (("DBG_CONTROL_C")); | |
1210 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1211 | break; | |
1212 | case DBG_CONTROL_BREAK: | |
1213 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
1214 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1215 | break; | |
1216 | case EXCEPTION_SINGLE_STEP: | |
1217 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
1218 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
1219 | break; | |
1220 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
1221 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
1222 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1223 | break; | |
1224 | case EXCEPTION_PRIV_INSTRUCTION: | |
1225 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
1226 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1227 | break; | |
1228 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1229 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
1230 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1231 | break; | |
1232 | default: | |
1233 | if (current_event.u.Exception.dwFirstChance) | |
34b34921 PA |
1234 | { |
1235 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1236 | return; | |
1237 | } | |
b80864fb DJ |
1238 | OUTMSG2 (("gdbserver: unknown target exception 0x%08lx at 0x%08lx", |
1239 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1240 | (DWORD) current_event.u.Exception.ExceptionRecord. | |
1241 | ExceptionAddress)); | |
1242 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
1243 | break; | |
1244 | } | |
1245 | OUTMSG2 (("\n")); | |
1246 | last_sig = ourstatus->value.sig; | |
b80864fb DJ |
1247 | } |
1248 | ||
4d5d1aaa | 1249 | |
34b34921 | 1250 | static void |
4d5d1aaa PA |
1251 | suspend_one_thread (struct inferior_list_entry *entry) |
1252 | { | |
1253 | struct thread_info *thread = (struct thread_info *) entry; | |
1254 | win32_thread_info *th = inferior_target_data (thread); | |
1255 | ||
1256 | if (!th->suspended) | |
1257 | { | |
1258 | if (SuspendThread (th->h) == (DWORD) -1) | |
1259 | { | |
1260 | DWORD err = GetLastError (); | |
1261 | OUTMSG (("warning: SuspendThread failed in suspend_one_thread, " | |
1262 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
1263 | } | |
1264 | else | |
1265 | th->suspended = 1; | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | static void | |
1270 | fake_breakpoint_event (void) | |
b80864fb | 1271 | { |
4d5d1aaa | 1272 | OUTMSG2(("fake_breakpoint_event\n")); |
b80864fb | 1273 | |
4d5d1aaa PA |
1274 | faked_breakpoint = 1; |
1275 | ||
1276 | memset (¤t_event, 0, sizeof (current_event)); | |
1277 | current_event.dwThreadId = main_thread_id; | |
1278 | current_event.dwDebugEventCode = EXCEPTION_DEBUG_EVENT; | |
1279 | current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1280 | = EXCEPTION_BREAKPOINT; | |
1281 | ||
1282 | for_each_inferior (&all_threads, suspend_one_thread); | |
1283 | } | |
1284 | ||
b65d95c5 DJ |
1285 | #ifdef _WIN32_WCE |
1286 | static int | |
1287 | auto_delete_breakpoint (CORE_ADDR stop_pc) | |
1288 | { | |
1289 | return 1; | |
1290 | } | |
1291 | #endif | |
1292 | ||
4d5d1aaa PA |
1293 | /* Get the next event from the child. */ |
1294 | ||
1295 | static int | |
1296 | get_child_debug_event (struct target_waitstatus *ourstatus) | |
1297 | { | |
b80864fb DJ |
1298 | last_sig = TARGET_SIGNAL_0; |
1299 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1300 | ||
4d5d1aaa PA |
1301 | /* Check if GDB sent us an interrupt request. */ |
1302 | check_remote_input_interrupt_request (); | |
1303 | ||
1304 | if (soft_interrupt_requested) | |
1305 | { | |
1306 | soft_interrupt_requested = 0; | |
1307 | fake_breakpoint_event (); | |
1308 | goto gotevent; | |
1309 | } | |
1310 | ||
d97903b2 PA |
1311 | #ifndef _WIN32_WCE |
1312 | attaching = 0; | |
1313 | #else | |
1314 | if (attaching) | |
1315 | { | |
1316 | /* WinCE doesn't set an initial breakpoint automatically. To | |
1b3f6016 PA |
1317 | stop the inferior, we flush all currently pending debug |
1318 | events -- the thread list and the dll list are always | |
1319 | reported immediatelly without delay, then, we suspend all | |
1320 | threads and pretend we saw a trap at the current PC of the | |
1321 | main thread. | |
1322 | ||
1323 | Contrary to desktop Windows, Windows CE *does* report the dll | |
1324 | names on LOAD_DLL_DEBUG_EVENTs resulting from a | |
1325 | DebugActiveProcess call. This limits the way we can detect | |
1326 | if all the dlls have already been reported. If we get a real | |
1327 | debug event before leaving attaching, the worst that will | |
1328 | happen is the user will see a spurious breakpoint. */ | |
d97903b2 PA |
1329 | |
1330 | current_event.dwDebugEventCode = 0; | |
1331 | if (!WaitForDebugEvent (¤t_event, 0)) | |
1b3f6016 PA |
1332 | { |
1333 | OUTMSG2(("no attach events left\n")); | |
1334 | fake_breakpoint_event (); | |
1335 | attaching = 0; | |
1336 | } | |
d97903b2 | 1337 | else |
1b3f6016 | 1338 | OUTMSG2(("got attach event\n")); |
d97903b2 PA |
1339 | } |
1340 | else | |
1341 | #endif | |
1342 | { | |
1343 | /* Keep the wait time low enough for confortable remote | |
1b3f6016 PA |
1344 | interruption, but high enough so gdbserver doesn't become a |
1345 | bottleneck. */ | |
d97903b2 | 1346 | if (!WaitForDebugEvent (¤t_event, 250)) |
1b3f6016 | 1347 | return 0; |
d97903b2 | 1348 | } |
4d5d1aaa PA |
1349 | |
1350 | gotevent: | |
b80864fb DJ |
1351 | |
1352 | current_inferior = | |
1353 | (struct thread_info *) find_inferior_id (&all_threads, | |
1354 | current_event.dwThreadId); | |
1355 | ||
34b34921 | 1356 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
1357 | { |
1358 | case CREATE_THREAD_DEBUG_EVENT: | |
1359 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
1360 | "for pid=%d tid=%x)\n", | |
1361 | (unsigned) current_event.dwProcessId, | |
1362 | (unsigned) current_event.dwThreadId)); | |
1363 | ||
1364 | /* Record the existence of this thread. */ | |
34b34921 | 1365 | child_add_thread (current_event.dwThreadId, |
b80864fb | 1366 | current_event.u.CreateThread.hThread); |
b80864fb DJ |
1367 | break; |
1368 | ||
1369 | case EXIT_THREAD_DEBUG_EVENT: | |
1370 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
1371 | "for pid=%d tid=%x\n", | |
1372 | (unsigned) current_event.dwProcessId, | |
1373 | (unsigned) current_event.dwThreadId)); | |
1374 | child_delete_thread (current_event.dwThreadId); | |
b80864fb DJ |
1375 | break; |
1376 | ||
1377 | case CREATE_PROCESS_DEBUG_EVENT: | |
1378 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
1379 | "for pid=%d tid=%x\n", | |
1380 | (unsigned) current_event.dwProcessId, | |
1381 | (unsigned) current_event.dwThreadId)); | |
1382 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
1383 | ||
1384 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1385 | main_thread_id = current_event.dwThreadId; | |
1386 | ||
1387 | ourstatus->kind = TARGET_WAITKIND_EXECD; | |
1388 | ourstatus->value.execd_pathname = "Main executable"; | |
1389 | ||
1390 | /* Add the main thread. */ | |
34b34921 PA |
1391 | child_add_thread (main_thread_id, |
1392 | current_event.u.CreateProcessInfo.hThread); | |
b80864fb | 1393 | |
34b34921 | 1394 | ourstatus->value.related_pid = current_event.dwThreadId; |
ed50f18f | 1395 | #ifdef _WIN32_WCE |
d97903b2 PA |
1396 | if (!attaching) |
1397 | { | |
1398 | /* Windows CE doesn't set the initial breakpoint | |
1399 | automatically like the desktop versions of Windows do. | |
1400 | We add it explicitly here. It will be removed as soon as | |
1401 | it is hit. */ | |
1402 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
1403 | .CreateProcessInfo.lpStartAddress, | |
b65d95c5 | 1404 | auto_delete_breakpoint); |
d97903b2 | 1405 | } |
ed50f18f | 1406 | #endif |
b80864fb DJ |
1407 | break; |
1408 | ||
1409 | case EXIT_PROCESS_DEBUG_EVENT: | |
1410 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
1411 | "for pid=%d tid=%x\n", | |
1412 | (unsigned) current_event.dwProcessId, | |
1413 | (unsigned) current_event.dwThreadId)); | |
1414 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1415 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
18aae699 | 1416 | child_continue (DBG_CONTINUE, -1); |
b80864fb | 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. */ | |
5b1c542e PA |
1478 | static unsigned long |
1479 | win32_wait (struct target_waitstatus *ourstatus) | |
b80864fb | 1480 | { |
b80864fb DJ |
1481 | while (1) |
1482 | { | |
5b1c542e | 1483 | if (!get_child_debug_event (ourstatus)) |
4d5d1aaa | 1484 | continue; |
b80864fb | 1485 | |
5b1c542e | 1486 | switch (ourstatus->kind) |
b80864fb | 1487 | { |
34b34921 | 1488 | case TARGET_WAITKIND_EXITED: |
b80864fb | 1489 | OUTMSG2 (("Child exited with retcode = %x\n", |
5b1c542e | 1490 | ourstatus->value.integer)); |
b80864fb | 1491 | |
5ac588cf | 1492 | win32_clear_inferiors (); |
5b1c542e | 1493 | return current_event.dwProcessId; |
34b34921 | 1494 | case TARGET_WAITKIND_STOPPED: |
1b3f6016 | 1495 | case TARGET_WAITKIND_LOADED: |
f72f3e60 | 1496 | OUTMSG2 (("Child Stopped with signal = %d \n", |
ed50f18f | 1497 | our_status.value.sig)); |
b80864fb | 1498 | |
b80864fb DJ |
1499 | child_fetch_inferior_registers (-1); |
1500 | ||
5b1c542e | 1501 | if (ourstatus->kind == TARGET_WAITKIND_LOADED |
255e7678 DJ |
1502 | && !server_waiting) |
1503 | { | |
1504 | /* When gdb connects, we want to be stopped at the | |
1505 | initial breakpoint, not in some dll load event. */ | |
1506 | child_continue (DBG_CONTINUE, -1); | |
1507 | break; | |
1508 | } | |
1509 | ||
5b1c542e PA |
1510 | /* We don't expose _LOADED events to gdbserver core. See |
1511 | the `dlls_changed' global. */ | |
1512 | if (ourstatus->kind == TARGET_WAITKIND_LOADED) | |
1513 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1514 | ||
1515 | return current_event.dwThreadId; | |
1b3f6016 | 1516 | default: |
5b1c542e | 1517 | OUTMSG (("Ignoring unknown internal event, %d\n", ourstatus->kind)); |
1b3f6016 PA |
1518 | /* fall-through */ |
1519 | case TARGET_WAITKIND_SPURIOUS: | |
1520 | case TARGET_WAITKIND_EXECD: | |
34b34921 PA |
1521 | /* do nothing, just continue */ |
1522 | child_continue (DBG_CONTINUE, -1); | |
1523 | break; | |
b80864fb | 1524 | } |
b80864fb DJ |
1525 | } |
1526 | } | |
1527 | ||
1528 | /* Fetch registers from the inferior process. | |
1529 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
1530 | static void | |
1531 | win32_fetch_inferior_registers (int regno) | |
1532 | { | |
1533 | child_fetch_inferior_registers (regno); | |
1534 | } | |
1535 | ||
1536 | /* Store registers to the inferior process. | |
1537 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
1538 | static void | |
1539 | win32_store_inferior_registers (int regno) | |
1540 | { | |
1541 | child_store_inferior_registers (regno); | |
1542 | } | |
1543 | ||
1544 | /* Read memory from the inferior process. This should generally be | |
1545 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1546 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
1547 | static int | |
1548 | win32_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) | |
1549 | { | |
ed50f18f | 1550 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1551 | } |
1552 | ||
1553 | /* Write memory to the inferior process. This should generally be | |
1554 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1555 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1556 | Returns 0 on success and errno on failure. */ | |
1557 | static int | |
1558 | win32_write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, | |
1559 | int len) | |
1560 | { | |
1561 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1562 | } | |
1563 | ||
7390519e PA |
1564 | /* Send an interrupt request to the inferior process. */ |
1565 | static void | |
1566 | win32_request_interrupt (void) | |
1567 | { | |
1568 | winapi_DebugBreakProcess DebugBreakProcess; | |
1569 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1570 | ||
1571 | #ifdef _WIN32_WCE | |
1572 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1573 | #else | |
1574 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1575 | #endif | |
1576 | ||
1577 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1578 | ||
1579 | if (GenerateConsoleCtrlEvent != NULL | |
1580 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1581 | return; | |
1582 | ||
1583 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1584 | not a process group id. | |
1585 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1586 | breakpoint exception in the interior process. */ | |
1587 | ||
1588 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1589 | ||
1590 | if (DebugBreakProcess != NULL | |
1591 | && DebugBreakProcess (current_process_handle)) | |
1592 | return; | |
1593 | ||
4d5d1aaa PA |
1594 | /* Last resort, suspend all threads manually. */ |
1595 | soft_interrupt_requested = 1; | |
7390519e PA |
1596 | } |
1597 | ||
59a016f0 PA |
1598 | #ifdef _WIN32_WCE |
1599 | int | |
1600 | win32_error_to_fileio_error (DWORD err) | |
1601 | { | |
1602 | switch (err) | |
1603 | { | |
1604 | case ERROR_BAD_PATHNAME: | |
1605 | case ERROR_FILE_NOT_FOUND: | |
1606 | case ERROR_INVALID_NAME: | |
1607 | case ERROR_PATH_NOT_FOUND: | |
1608 | return FILEIO_ENOENT; | |
1609 | case ERROR_CRC: | |
1610 | case ERROR_IO_DEVICE: | |
1611 | case ERROR_OPEN_FAILED: | |
1612 | return FILEIO_EIO; | |
1613 | case ERROR_INVALID_HANDLE: | |
1614 | return FILEIO_EBADF; | |
1615 | case ERROR_ACCESS_DENIED: | |
1616 | case ERROR_SHARING_VIOLATION: | |
1617 | return FILEIO_EACCES; | |
1618 | case ERROR_NOACCESS: | |
1619 | return FILEIO_EFAULT; | |
1620 | case ERROR_BUSY: | |
1621 | return FILEIO_EBUSY; | |
1622 | case ERROR_ALREADY_EXISTS: | |
1623 | case ERROR_FILE_EXISTS: | |
1624 | return FILEIO_EEXIST; | |
1625 | case ERROR_BAD_DEVICE: | |
1626 | return FILEIO_ENODEV; | |
1627 | case ERROR_DIRECTORY: | |
1628 | return FILEIO_ENOTDIR; | |
1629 | case ERROR_FILENAME_EXCED_RANGE: | |
1630 | case ERROR_INVALID_DATA: | |
1631 | case ERROR_INVALID_PARAMETER: | |
1632 | case ERROR_NEGATIVE_SEEK: | |
1633 | return FILEIO_EINVAL; | |
1634 | case ERROR_TOO_MANY_OPEN_FILES: | |
1635 | return FILEIO_EMFILE; | |
1636 | case ERROR_HANDLE_DISK_FULL: | |
1637 | case ERROR_DISK_FULL: | |
1638 | return FILEIO_ENOSPC; | |
1639 | case ERROR_WRITE_PROTECT: | |
1640 | return FILEIO_EROFS; | |
1641 | case ERROR_NOT_SUPPORTED: | |
1642 | return FILEIO_ENOSYS; | |
1643 | } | |
1644 | ||
1645 | return FILEIO_EUNKNOWN; | |
1646 | } | |
1647 | ||
1648 | static void | |
1649 | wince_hostio_last_error (char *buf) | |
1650 | { | |
1651 | DWORD winerr = GetLastError (); | |
1652 | int fileio_err = win32_error_to_fileio_error (winerr); | |
1653 | sprintf (buf, "F-1,%x", fileio_err); | |
1654 | } | |
1655 | #endif | |
1656 | ||
b80864fb DJ |
1657 | static struct target_ops win32_target_ops = { |
1658 | win32_create_inferior, | |
1659 | win32_attach, | |
1660 | win32_kill, | |
1661 | win32_detach, | |
444d6139 | 1662 | win32_join, |
b80864fb DJ |
1663 | win32_thread_alive, |
1664 | win32_resume, | |
1665 | win32_wait, | |
1666 | win32_fetch_inferior_registers, | |
1667 | win32_store_inferior_registers, | |
1668 | win32_read_inferior_memory, | |
1669 | win32_write_inferior_memory, | |
820f2bda | 1670 | NULL, |
7390519e | 1671 | win32_request_interrupt, |
820f2bda PA |
1672 | NULL, |
1673 | NULL, | |
1674 | NULL, | |
1675 | NULL, | |
1676 | NULL, | |
1677 | NULL, | |
1678 | NULL, | |
59a016f0 PA |
1679 | NULL, |
1680 | #ifdef _WIN32_WCE | |
1681 | wince_hostio_last_error, | |
1682 | #else | |
1683 | hostio_last_error_from_errno, | |
1684 | #endif | |
b80864fb DJ |
1685 | }; |
1686 | ||
1687 | /* Initialize the Win32 backend. */ | |
1688 | void | |
1689 | initialize_low (void) | |
1690 | { | |
1691 | set_target_ops (&win32_target_ops); | |
ed50f18f PA |
1692 | if (the_low_target.breakpoint != NULL) |
1693 | set_breakpoint_data (the_low_target.breakpoint, | |
1694 | the_low_target.breakpoint_len); | |
d05b4ac3 | 1695 | the_low_target.arch_setup (); |
b80864fb | 1696 | } |