Commit | Line | Data |
---|---|---|
b80864fb | 1 | /* Low level interface to Windows debugging, for gdbserver. |
9b254dd1 | 2 | Copyright (C) 2006, 2007, 2008 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; | |
72 | static enum target_signal last_sig = TARGET_SIGNAL_0; | |
73 | ||
74 | /* The current debug event from WaitForDebugEvent. */ | |
75 | static DEBUG_EVENT current_event; | |
76 | ||
4d5d1aaa PA |
77 | /* Non zero if an interrupt request is to be satisfied by suspending |
78 | all threads. */ | |
79 | static int soft_interrupt_requested = 0; | |
80 | ||
81 | /* Non zero if the inferior is stopped in a simulated breakpoint done | |
82 | by suspending all the threads. */ | |
83 | static int faked_breakpoint = 0; | |
84 | ||
ed50f18f | 85 | #define NUM_REGS (the_low_target.num_regs) |
b80864fb | 86 | |
bf914831 PA |
87 | typedef BOOL WINAPI (*winapi_DebugActiveProcessStop) (DWORD dwProcessId); |
88 | typedef BOOL WINAPI (*winapi_DebugSetProcessKillOnExit) (BOOL KillOnExit); | |
7390519e PA |
89 | typedef BOOL WINAPI (*winapi_DebugBreakProcess) (HANDLE); |
90 | typedef BOOL WINAPI (*winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD); | |
b80864fb | 91 | |
b80864fb DJ |
92 | static DWORD main_thread_id = 0; |
93 | ||
34b34921 PA |
94 | static void win32_resume (struct thread_resume *resume_info); |
95 | ||
b80864fb DJ |
96 | /* Get the thread ID from the current selected inferior (the current |
97 | thread). */ | |
98 | static DWORD | |
99 | current_inferior_tid (void) | |
100 | { | |
41093d81 | 101 | win32_thread_info *th = inferior_target_data (current_inferior); |
b80864fb DJ |
102 | return th->tid; |
103 | } | |
104 | ||
9c6c8194 PA |
105 | /* Get the thread context of the thread associated with TH. */ |
106 | ||
107 | static void | |
108 | win32_get_thread_context (win32_thread_info *th) | |
109 | { | |
110 | memset (&th->context, 0, sizeof (CONTEXT)); | |
111 | (*the_low_target.get_thread_context) (th, ¤t_event); | |
112 | #ifdef _WIN32_WCE | |
113 | memcpy (&th->base_context, &th->context, sizeof (CONTEXT)); | |
114 | #endif | |
115 | } | |
116 | ||
117 | /* Set the thread context of the thread associated with TH. */ | |
118 | ||
119 | static void | |
120 | win32_set_thread_context (win32_thread_info *th) | |
121 | { | |
122 | #ifdef _WIN32_WCE | |
123 | /* Calling SuspendThread on a thread that is running kernel code | |
124 | will report that the suspending was successful, but in fact, that | |
125 | will often not be true. In those cases, the context returned by | |
126 | GetThreadContext will not be correct by the time the thread | |
127 | stops, hence we can't set that context back into the thread when | |
128 | resuming - it will most likelly crash the inferior. | |
129 | Unfortunately, there is no way to know when the thread will | |
130 | really stop. To work around it, we'll only write the context | |
131 | back to the thread when either the user or GDB explicitly change | |
132 | it between stopping and resuming. */ | |
133 | if (memcmp (&th->context, &th->base_context, sizeof (CONTEXT)) != 0) | |
134 | #endif | |
135 | (*the_low_target.set_thread_context) (th, ¤t_event); | |
136 | } | |
137 | ||
b80864fb DJ |
138 | /* Find a thread record given a thread id. If GET_CONTEXT is set then |
139 | also retrieve the context for this thread. */ | |
41093d81 | 140 | static win32_thread_info * |
b80864fb DJ |
141 | thread_rec (DWORD id, int get_context) |
142 | { | |
143 | struct thread_info *thread; | |
41093d81 | 144 | win32_thread_info *th; |
b80864fb DJ |
145 | |
146 | thread = (struct thread_info *) find_inferior_id (&all_threads, id); | |
147 | if (thread == NULL) | |
148 | return NULL; | |
149 | ||
150 | th = inferior_target_data (thread); | |
c436e841 | 151 | if (get_context && th->context.ContextFlags == 0) |
b80864fb | 152 | { |
c436e841 PA |
153 | if (!th->suspended) |
154 | { | |
155 | if (SuspendThread (th->h) == (DWORD) -1) | |
156 | { | |
157 | DWORD err = GetLastError (); | |
158 | OUTMSG (("warning: SuspendThread failed in thread_rec, " | |
159 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
160 | } | |
161 | else | |
162 | th->suspended = 1; | |
163 | } | |
b80864fb | 164 | |
9c6c8194 | 165 | win32_get_thread_context (th); |
b80864fb DJ |
166 | } |
167 | ||
168 | return th; | |
169 | } | |
170 | ||
171 | /* Add a thread to the thread list. */ | |
41093d81 | 172 | static win32_thread_info * |
b80864fb DJ |
173 | child_add_thread (DWORD tid, HANDLE h) |
174 | { | |
41093d81 | 175 | win32_thread_info *th; |
b80864fb DJ |
176 | |
177 | if ((th = thread_rec (tid, FALSE))) | |
178 | return th; | |
179 | ||
4d5d1aaa | 180 | th = calloc (1, sizeof (*th)); |
b80864fb DJ |
181 | th->tid = tid; |
182 | th->h = h; | |
183 | ||
184 | add_thread (tid, th, (unsigned int) tid); | |
185 | set_inferior_regcache_data ((struct thread_info *) | |
186 | find_inferior_id (&all_threads, tid), | |
187 | new_register_cache ()); | |
188 | ||
34b34921 PA |
189 | if (the_low_target.thread_added != NULL) |
190 | (*the_low_target.thread_added) (th); | |
b80864fb DJ |
191 | |
192 | return th; | |
193 | } | |
194 | ||
195 | /* Delete a thread from the list of threads. */ | |
196 | static void | |
197 | delete_thread_info (struct inferior_list_entry *thread) | |
198 | { | |
41093d81 | 199 | win32_thread_info *th = inferior_target_data ((struct thread_info *) thread); |
b80864fb DJ |
200 | |
201 | remove_thread ((struct thread_info *) thread); | |
202 | CloseHandle (th->h); | |
203 | free (th); | |
204 | } | |
205 | ||
206 | /* Delete a thread from the list of threads. */ | |
207 | static void | |
208 | child_delete_thread (DWORD id) | |
209 | { | |
210 | struct inferior_list_entry *thread; | |
211 | ||
212 | /* If the last thread is exiting, just return. */ | |
213 | if (all_threads.head == all_threads.tail) | |
214 | return; | |
215 | ||
216 | thread = find_inferior_id (&all_threads, id); | |
217 | if (thread == NULL) | |
218 | return; | |
219 | ||
220 | delete_thread_info (thread); | |
221 | } | |
222 | ||
223 | /* Transfer memory from/to the debugged process. */ | |
224 | static int | |
225 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
226 | int write, struct target_ops *target) | |
227 | { | |
228 | SIZE_T done; | |
229 | long addr = (long) memaddr; | |
230 | ||
231 | if (write) | |
232 | { | |
233 | WriteProcessMemory (current_process_handle, (LPVOID) addr, | |
234 | (LPCVOID) our, len, &done); | |
235 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); | |
236 | } | |
237 | else | |
238 | { | |
239 | ReadProcessMemory (current_process_handle, (LPCVOID) addr, (LPVOID) our, | |
240 | len, &done); | |
241 | } | |
242 | return done; | |
243 | } | |
244 | ||
245 | /* Generally, what has the program done? */ | |
246 | enum target_waitkind | |
247 | { | |
248 | /* The program has exited. The exit status is in value.integer. */ | |
249 | TARGET_WAITKIND_EXITED, | |
250 | ||
251 | /* The program has stopped with a signal. Which signal is in | |
252 | value.sig. */ | |
253 | TARGET_WAITKIND_STOPPED, | |
254 | ||
255e7678 DJ |
255 | /* The program is letting us know that it dynamically loaded |
256 | or unloaded something. */ | |
b80864fb DJ |
257 | TARGET_WAITKIND_LOADED, |
258 | ||
259 | /* The program has exec'ed a new executable file. The new file's | |
260 | pathname is pointed to by value.execd_pathname. */ | |
b80864fb DJ |
261 | TARGET_WAITKIND_EXECD, |
262 | ||
7390519e PA |
263 | /* Nothing interesting happened, but we stopped anyway. We take the |
264 | chance to check if GDB requested an interrupt. */ | |
b80864fb DJ |
265 | TARGET_WAITKIND_SPURIOUS, |
266 | }; | |
267 | ||
268 | struct target_waitstatus | |
269 | { | |
270 | enum target_waitkind kind; | |
271 | ||
272 | /* Forked child pid, execd pathname, exit status or signal number. */ | |
273 | union | |
274 | { | |
275 | int integer; | |
276 | enum target_signal sig; | |
277 | int related_pid; | |
278 | char *execd_pathname; | |
279 | int syscall_id; | |
280 | } | |
281 | value; | |
282 | }; | |
283 | ||
ed50f18f | 284 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
285 | state. */ |
286 | static void | |
287 | child_init_thread_list (void) | |
288 | { | |
289 | for_each_inferior (&all_threads, delete_thread_info); | |
290 | } | |
291 | ||
292 | static void | |
293 | do_initial_child_stuff (DWORD pid) | |
294 | { | |
b80864fb DJ |
295 | last_sig = TARGET_SIGNAL_0; |
296 | ||
b80864fb DJ |
297 | memset (¤t_event, 0, sizeof (current_event)); |
298 | ||
299 | child_init_thread_list (); | |
ed50f18f PA |
300 | |
301 | if (the_low_target.initial_stuff != NULL) | |
302 | (*the_low_target.initial_stuff) (); | |
b80864fb DJ |
303 | } |
304 | ||
305 | /* Resume all artificially suspended threads if we are continuing | |
306 | execution. */ | |
307 | static int | |
308 | continue_one_thread (struct inferior_list_entry *this_thread, void *id_ptr) | |
309 | { | |
310 | struct thread_info *thread = (struct thread_info *) this_thread; | |
311 | int thread_id = * (int *) id_ptr; | |
41093d81 | 312 | win32_thread_info *th = inferior_target_data (thread); |
b80864fb DJ |
313 | |
314 | if ((thread_id == -1 || thread_id == th->tid) | |
c436e841 | 315 | && th->suspended) |
b80864fb | 316 | { |
34b34921 | 317 | if (th->context.ContextFlags) |
b80864fb | 318 | { |
9c6c8194 | 319 | win32_set_thread_context (th); |
b80864fb DJ |
320 | th->context.ContextFlags = 0; |
321 | } | |
34b34921 | 322 | |
c436e841 PA |
323 | if (ResumeThread (th->h) == (DWORD) -1) |
324 | { | |
325 | DWORD err = GetLastError (); | |
326 | OUTMSG (("warning: ResumeThread failed in continue_one_thread, " | |
327 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
328 | } | |
329 | th->suspended = 0; | |
b80864fb DJ |
330 | } |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
335 | static BOOL | |
336 | child_continue (DWORD continue_status, int thread_id) | |
337 | { | |
4d5d1aaa PA |
338 | /* The inferior will only continue after the ContinueDebugEvent |
339 | call. */ | |
340 | find_inferior (&all_threads, continue_one_thread, &thread_id); | |
341 | faked_breakpoint = 0; | |
b80864fb | 342 | |
4d5d1aaa PA |
343 | if (!ContinueDebugEvent (current_event.dwProcessId, |
344 | current_event.dwThreadId, | |
345 | continue_status)) | |
346 | return FALSE; | |
b80864fb | 347 | |
4d5d1aaa | 348 | return TRUE; |
b80864fb DJ |
349 | } |
350 | ||
b80864fb DJ |
351 | /* Fetch register(s) from the current thread context. */ |
352 | static void | |
353 | child_fetch_inferior_registers (int r) | |
354 | { | |
355 | int regno; | |
41093d81 | 356 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
357 | if (r == -1 || r == 0 || r > NUM_REGS) |
358 | child_fetch_inferior_registers (NUM_REGS); | |
359 | else | |
360 | for (regno = 0; regno < r; regno++) | |
34b34921 | 361 | (*the_low_target.fetch_inferior_register) (th, regno); |
b80864fb DJ |
362 | } |
363 | ||
364 | /* Store a new register value into the current thread context. We don't | |
365 | change the program's context until later, when we resume it. */ | |
366 | static void | |
367 | child_store_inferior_registers (int r) | |
368 | { | |
369 | int regno; | |
41093d81 | 370 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
371 | if (r == -1 || r == 0 || r > NUM_REGS) |
372 | child_store_inferior_registers (NUM_REGS); | |
373 | else | |
374 | for (regno = 0; regno < r; regno++) | |
34b34921 | 375 | (*the_low_target.store_inferior_register) (th, regno); |
b80864fb DJ |
376 | } |
377 | ||
ed50f18f PA |
378 | /* Map the Windows error number in ERROR to a locale-dependent error |
379 | message string and return a pointer to it. Typically, the values | |
380 | for ERROR come from GetLastError. | |
381 | ||
382 | The string pointed to shall not be modified by the application, | |
383 | but may be overwritten by a subsequent call to strwinerror | |
384 | ||
385 | The strwinerror function does not change the current setting | |
386 | of GetLastError. */ | |
387 | ||
388 | char * | |
389 | strwinerror (DWORD error) | |
390 | { | |
391 | static char buf[1024]; | |
392 | TCHAR *msgbuf; | |
393 | DWORD lasterr = GetLastError (); | |
394 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
395 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
396 | NULL, | |
397 | error, | |
398 | 0, /* Default language */ | |
399 | (LPVOID)&msgbuf, | |
400 | 0, | |
401 | NULL); | |
402 | if (chars != 0) | |
403 | { | |
404 | /* If there is an \r\n appended, zap it. */ | |
405 | if (chars >= 2 | |
406 | && msgbuf[chars - 2] == '\r' | |
407 | && msgbuf[chars - 1] == '\n') | |
408 | { | |
409 | chars -= 2; | |
410 | msgbuf[chars] = 0; | |
411 | } | |
412 | ||
413 | if (chars > ((COUNTOF (buf)) - 1)) | |
414 | { | |
415 | chars = COUNTOF (buf) - 1; | |
416 | msgbuf [chars] = 0; | |
417 | } | |
418 | ||
419 | #ifdef UNICODE | |
420 | wcstombs (buf, msgbuf, chars + 1); | |
421 | #else | |
422 | strncpy (buf, msgbuf, chars + 1); | |
423 | #endif | |
424 | LocalFree (msgbuf); | |
425 | } | |
426 | else | |
427 | sprintf (buf, "unknown win32 error (%ld)", error); | |
428 | ||
429 | SetLastError (lasterr); | |
430 | return buf; | |
431 | } | |
432 | ||
aec18585 PA |
433 | static BOOL |
434 | create_process (const char *program, char *args, | |
435 | DWORD flags, PROCESS_INFORMATION *pi) | |
436 | { | |
437 | BOOL ret; | |
438 | ||
439 | #ifdef _WIN32_WCE | |
440 | wchar_t *p, *wprogram, *wargs; | |
441 | size_t argslen; | |
442 | ||
443 | wprogram = alloca ((strlen (program) + 1) * sizeof (wchar_t)); | |
444 | mbstowcs (wprogram, program, strlen (program) + 1); | |
445 | ||
446 | for (p = wprogram; *p; ++p) | |
447 | if (L'/' == *p) | |
448 | *p = L'\\'; | |
449 | ||
450 | argslen = strlen (args); | |
451 | wargs = alloca ((argslen + 1) * sizeof (wchar_t)); | |
452 | mbstowcs (wargs, args, argslen + 1); | |
453 | ||
454 | ret = CreateProcessW (wprogram, /* image name */ | |
455 | wargs, /* command line */ | |
456 | NULL, /* security, not supported */ | |
457 | NULL, /* thread, not supported */ | |
458 | FALSE, /* inherit handles, not supported */ | |
459 | flags, /* start flags */ | |
460 | NULL, /* environment, not supported */ | |
461 | NULL, /* current directory, not supported */ | |
462 | NULL, /* start info, not supported */ | |
463 | pi); /* proc info */ | |
464 | #else | |
465 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; | |
466 | ||
467 | ret = CreateProcessA (program, /* image name */ | |
468 | args, /* command line */ | |
469 | NULL, /* security */ | |
470 | NULL, /* thread */ | |
471 | TRUE, /* inherit handles */ | |
472 | flags, /* start flags */ | |
473 | NULL, /* environment */ | |
474 | NULL, /* current directory */ | |
475 | &si, /* start info */ | |
476 | pi); /* proc info */ | |
477 | #endif | |
478 | ||
479 | return ret; | |
480 | } | |
481 | ||
b80864fb DJ |
482 | /* Start a new process. |
483 | PROGRAM is a path to the program to execute. | |
484 | ARGS is a standard NULL-terminated array of arguments, | |
485 | to be passed to the inferior as ``argv''. | |
486 | Returns the new PID on success, -1 on failure. Registers the new | |
487 | process with the process list. */ | |
488 | static int | |
489 | win32_create_inferior (char *program, char **program_args) | |
490 | { | |
491 | #ifndef USE_WIN32API | |
492 | char real_path[MAXPATHLEN]; | |
493 | char *orig_path, *new_path, *path_ptr; | |
494 | #endif | |
b80864fb DJ |
495 | BOOL ret; |
496 | DWORD flags; | |
497 | char *args; | |
498 | int argslen; | |
499 | int argc; | |
ed50f18f | 500 | PROCESS_INFORMATION pi; |
aec18585 | 501 | DWORD err; |
b80864fb | 502 | |
d97903b2 PA |
503 | /* win32_wait needs to know we're not attaching. */ |
504 | attaching = 0; | |
505 | ||
b80864fb DJ |
506 | if (!program) |
507 | error ("No executable specified, specify executable to debug.\n"); | |
508 | ||
b80864fb DJ |
509 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
510 | ||
511 | #ifndef USE_WIN32API | |
512 | orig_path = NULL; | |
513 | path_ptr = getenv ("PATH"); | |
514 | if (path_ptr) | |
515 | { | |
516 | orig_path = alloca (strlen (path_ptr) + 1); | |
517 | new_path = alloca (cygwin_posix_to_win32_path_list_buf_size (path_ptr)); | |
518 | strcpy (orig_path, path_ptr); | |
519 | cygwin_posix_to_win32_path_list (path_ptr, new_path); | |
520 | setenv ("PATH", new_path, 1); | |
521 | } | |
522 | cygwin_conv_to_win32_path (program, real_path); | |
523 | program = real_path; | |
524 | #endif | |
525 | ||
ed50f18f | 526 | argslen = 1; |
b80864fb DJ |
527 | for (argc = 1; program_args[argc]; argc++) |
528 | argslen += strlen (program_args[argc]) + 1; | |
529 | args = alloca (argslen); | |
ed50f18f | 530 | args[0] = '\0'; |
b80864fb DJ |
531 | for (argc = 1; program_args[argc]; argc++) |
532 | { | |
533 | /* FIXME: Can we do better about quoting? How does Cygwin | |
534 | handle this? */ | |
535 | strcat (args, " "); | |
536 | strcat (args, program_args[argc]); | |
537 | } | |
ed50f18f | 538 | OUTMSG2 (("Command line is \"%s\"\n", args)); |
b80864fb | 539 | |
ed50f18f | 540 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 541 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 542 | #endif |
b80864fb | 543 | |
aec18585 PA |
544 | ret = create_process (program, args, flags, &pi); |
545 | err = GetLastError (); | |
546 | if (!ret && err == ERROR_FILE_NOT_FOUND) | |
547 | { | |
548 | char *exename = alloca (strlen (program) + 5); | |
549 | strcat (strcpy (exename, program), ".exe"); | |
550 | ret = create_process (exename, args, flags, &pi); | |
551 | err = GetLastError (); | |
552 | } | |
b80864fb DJ |
553 | |
554 | #ifndef USE_WIN32API | |
555 | if (orig_path) | |
556 | setenv ("PATH", orig_path, 1); | |
557 | #endif | |
558 | ||
559 | if (!ret) | |
560 | { | |
ed50f18f PA |
561 | error ("Error creating process \"%s%s\", (error %d): %s\n", |
562 | program, args, (int) err, strwinerror (err)); | |
b80864fb DJ |
563 | } |
564 | else | |
565 | { | |
566 | OUTMSG2 (("Process created: %s\n", (char *) args)); | |
567 | } | |
568 | ||
ed50f18f PA |
569 | #ifndef _WIN32_WCE |
570 | /* On Windows CE this handle can't be closed. The OS reuses | |
571 | it in the debug events, while the 9x/NT versions of Windows | |
572 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 573 | CloseHandle (pi.hThread); |
ed50f18f | 574 | #endif |
b80864fb DJ |
575 | |
576 | current_process_handle = pi.hProcess; | |
577 | current_process_id = pi.dwProcessId; | |
578 | ||
579 | do_initial_child_stuff (current_process_id); | |
580 | ||
581 | return current_process_id; | |
582 | } | |
583 | ||
584 | /* Attach to a running process. | |
585 | PID is the process ID to attach to, specified by the user | |
586 | or a higher layer. */ | |
587 | static int | |
588 | win32_attach (unsigned long pid) | |
589 | { | |
5ca906e6 | 590 | HANDLE h; |
bf914831 | 591 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; |
5ca906e6 | 592 | DWORD err; |
ed50f18f PA |
593 | #ifdef _WIN32_WCE |
594 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
595 | #else | |
596 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
597 | #endif | |
bf914831 | 598 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); |
b80864fb | 599 | |
5ca906e6 PA |
600 | h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
601 | if (h != NULL) | |
1d5315fe | 602 | { |
5ca906e6 PA |
603 | if (DebugActiveProcess (pid)) |
604 | { | |
605 | if (DebugSetProcessKillOnExit != NULL) | |
606 | DebugSetProcessKillOnExit (FALSE); | |
607 | ||
d97903b2 PA |
608 | /* win32_wait needs to know we're attaching. */ |
609 | attaching = 1; | |
5ca906e6 PA |
610 | current_process_handle = h; |
611 | current_process_id = pid; | |
612 | do_initial_child_stuff (pid); | |
613 | return 0; | |
614 | } | |
615 | ||
616 | CloseHandle (h); | |
b80864fb DJ |
617 | } |
618 | ||
5ca906e6 PA |
619 | err = GetLastError (); |
620 | error ("Attach to process failed (error %d): %s\n", | |
621 | (int) err, strwinerror (err)); | |
b80864fb DJ |
622 | } |
623 | ||
bce7165d PA |
624 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
625 | static void | |
626 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
627 | { | |
628 | #define READ_BUFFER_LEN 1024 | |
629 | CORE_ADDR addr; | |
630 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
631 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
632 | ||
633 | if (nbytes == 0) | |
634 | return; | |
635 | ||
636 | if (nbytes > READ_BUFFER_LEN) | |
637 | nbytes = READ_BUFFER_LEN; | |
638 | ||
639 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
640 | ||
641 | if (current_event.u.DebugString.fUnicode) | |
642 | { | |
643 | /* The event tells us how many bytes, not chars, even | |
644 | in Unicode. */ | |
645 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; | |
646 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
647 | return; | |
648 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
649 | } | |
650 | else | |
651 | { | |
652 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
653 | return; | |
654 | } | |
655 | ||
656 | if (strncmp (s, "cYg", 3) != 0) | |
45e2715e PA |
657 | { |
658 | if (!server_waiting) | |
659 | { | |
660 | OUTMSG2(("%s", s)); | |
661 | return; | |
662 | } | |
663 | ||
664 | monitor_output (s); | |
665 | } | |
bce7165d PA |
666 | #undef READ_BUFFER_LEN |
667 | } | |
668 | ||
b80864fb DJ |
669 | /* Kill all inferiors. */ |
670 | static void | |
671 | win32_kill (void) | |
672 | { | |
ed50f18f PA |
673 | win32_thread_info *current_thread; |
674 | ||
9d606399 DJ |
675 | if (current_process_handle == NULL) |
676 | return; | |
677 | ||
b80864fb DJ |
678 | TerminateProcess (current_process_handle, 0); |
679 | for (;;) | |
680 | { | |
681 | if (!child_continue (DBG_CONTINUE, -1)) | |
682 | break; | |
683 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
684 | break; | |
685 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
686 | break; | |
bce7165d PA |
687 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
688 | { | |
689 | struct target_waitstatus our_status = { 0 }; | |
690 | handle_output_debug_string (&our_status); | |
691 | } | |
b80864fb | 692 | } |
ed50f18f PA |
693 | |
694 | CloseHandle (current_process_handle); | |
695 | ||
696 | current_thread = inferior_target_data (current_inferior); | |
697 | if (current_thread && current_thread->h) | |
698 | { | |
699 | /* This may fail in an attached process, so don't check. */ | |
700 | (void) CloseHandle (current_thread->h); | |
701 | } | |
b80864fb DJ |
702 | } |
703 | ||
704 | /* Detach from all inferiors. */ | |
444d6139 | 705 | static int |
b80864fb DJ |
706 | win32_detach (void) |
707 | { | |
444d6139 PA |
708 | HANDLE h; |
709 | ||
bf914831 PA |
710 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
711 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
712 | #ifdef _WIN32_WCE |
713 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
714 | #else | |
715 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
716 | #endif | |
bf914831 PA |
717 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
718 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 719 | |
444d6139 PA |
720 | if (DebugSetProcessKillOnExit == NULL |
721 | || DebugActiveProcessStop == NULL) | |
722 | return -1; | |
b80864fb | 723 | |
444d6139 PA |
724 | /* We need a new handle, since DebugActiveProcessStop |
725 | closes all the ones that came through the events. */ | |
726 | if ((h = OpenProcess (PROCESS_ALL_ACCESS, | |
727 | FALSE, | |
728 | current_process_id)) == NULL) | |
729 | { | |
730 | /* The process died. */ | |
731 | return -1; | |
732 | } | |
733 | ||
734 | { | |
735 | struct thread_resume resume; | |
736 | resume.thread = -1; | |
737 | resume.step = 0; | |
738 | resume.sig = 0; | |
739 | resume.leave_stopped = 0; | |
740 | win32_resume (&resume); | |
741 | } | |
742 | ||
743 | if (!DebugActiveProcessStop (current_process_id)) | |
744 | { | |
745 | CloseHandle (h); | |
746 | return -1; | |
747 | } | |
748 | DebugSetProcessKillOnExit (FALSE); | |
749 | ||
750 | current_process_handle = h; | |
751 | return 0; | |
752 | } | |
753 | ||
754 | /* Wait for inferiors to end. */ | |
755 | static void | |
756 | win32_join (void) | |
757 | { | |
758 | if (current_process_id == 0 | |
759 | || current_process_handle == NULL) | |
760 | return; | |
761 | ||
762 | WaitForSingleObject (current_process_handle, INFINITE); | |
763 | CloseHandle (current_process_handle); | |
764 | ||
765 | current_process_handle = NULL; | |
766 | current_process_id = 0; | |
b80864fb DJ |
767 | } |
768 | ||
769 | /* Return 1 iff the thread with thread ID TID is alive. */ | |
770 | static int | |
771 | win32_thread_alive (unsigned long tid) | |
772 | { | |
773 | int res; | |
774 | ||
775 | /* Our thread list is reliable; don't bother to poll target | |
776 | threads. */ | |
777 | if (find_inferior_id (&all_threads, tid) != NULL) | |
778 | res = 1; | |
779 | else | |
780 | res = 0; | |
781 | return res; | |
782 | } | |
783 | ||
784 | /* Resume the inferior process. RESUME_INFO describes how we want | |
785 | to resume. */ | |
786 | static void | |
787 | win32_resume (struct thread_resume *resume_info) | |
788 | { | |
789 | DWORD tid; | |
790 | enum target_signal sig; | |
791 | int step; | |
41093d81 | 792 | win32_thread_info *th; |
b80864fb DJ |
793 | DWORD continue_status = DBG_CONTINUE; |
794 | ||
795 | /* This handles the very limited set of resume packets that GDB can | |
796 | currently produce. */ | |
797 | ||
798 | if (resume_info[0].thread == -1) | |
799 | tid = -1; | |
800 | else if (resume_info[1].thread == -1 && !resume_info[1].leave_stopped) | |
801 | tid = -1; | |
802 | else | |
803 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
804 | the Windows resume code do the right thing for thread switching. */ | |
805 | tid = current_event.dwThreadId; | |
806 | ||
807 | if (resume_info[0].thread != -1) | |
808 | { | |
809 | sig = resume_info[0].sig; | |
810 | step = resume_info[0].step; | |
811 | } | |
812 | else | |
813 | { | |
814 | sig = 0; | |
815 | step = 0; | |
816 | } | |
817 | ||
818 | if (sig != TARGET_SIGNAL_0) | |
819 | { | |
820 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
821 | { | |
822 | OUTMSG (("Cannot continue with signal %d here.\n", sig)); | |
823 | } | |
824 | else if (sig == last_sig) | |
825 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
826 | else | |
827 | OUTMSG (("Can only continue with recieved signal %d.\n", last_sig)); | |
828 | } | |
829 | ||
830 | last_sig = TARGET_SIGNAL_0; | |
831 | ||
832 | /* Get context for the currently selected thread. */ | |
833 | th = thread_rec (current_event.dwThreadId, FALSE); | |
834 | if (th) | |
835 | { | |
836 | if (th->context.ContextFlags) | |
837 | { | |
b80864fb DJ |
838 | /* Move register values from the inferior into the thread |
839 | context structure. */ | |
840 | regcache_invalidate (); | |
841 | ||
842 | if (step) | |
ed50f18f PA |
843 | { |
844 | if (the_low_target.single_step != NULL) | |
845 | (*the_low_target.single_step) (th); | |
846 | else | |
847 | error ("Single stepping is not supported " | |
848 | "in this configuration.\n"); | |
849 | } | |
34b34921 | 850 | |
9c6c8194 | 851 | win32_set_thread_context (th); |
b80864fb DJ |
852 | th->context.ContextFlags = 0; |
853 | } | |
854 | } | |
855 | ||
856 | /* Allow continuing with the same signal that interrupted us. | |
857 | Otherwise complain. */ | |
858 | ||
859 | child_continue (continue_status, tid); | |
860 | } | |
861 | ||
255e7678 DJ |
862 | static void |
863 | win32_add_one_solib (const char *name, CORE_ADDR load_addr) | |
864 | { | |
865 | char buf[MAX_PATH + 1]; | |
866 | char buf2[MAX_PATH + 1]; | |
867 | ||
868 | #ifdef _WIN32_WCE | |
869 | WIN32_FIND_DATA w32_fd; | |
870 | WCHAR wname[MAX_PATH + 1]; | |
871 | mbstowcs (wname, name, MAX_PATH); | |
872 | HANDLE h = FindFirstFile (wname, &w32_fd); | |
873 | #else | |
874 | WIN32_FIND_DATAA w32_fd; | |
875 | HANDLE h = FindFirstFileA (name, &w32_fd); | |
876 | #endif | |
877 | ||
878 | if (h == INVALID_HANDLE_VALUE) | |
879 | strcpy (buf, name); | |
880 | else | |
881 | { | |
882 | FindClose (h); | |
883 | strcpy (buf, name); | |
884 | #ifndef _WIN32_WCE | |
885 | { | |
886 | char cwd[MAX_PATH + 1]; | |
887 | char *p; | |
888 | if (GetCurrentDirectoryA (MAX_PATH + 1, cwd)) | |
889 | { | |
890 | p = strrchr (buf, '\\'); | |
891 | if (p) | |
892 | p[1] = '\0'; | |
893 | SetCurrentDirectoryA (buf); | |
894 | GetFullPathNameA (w32_fd.cFileName, MAX_PATH, buf, &p); | |
895 | SetCurrentDirectoryA (cwd); | |
896 | } | |
897 | } | |
898 | #endif | |
899 | } | |
900 | ||
901 | #ifdef __CYGWIN__ | |
902 | cygwin_conv_to_posix_path (buf, buf2); | |
903 | #else | |
904 | strcpy (buf2, buf); | |
905 | #endif | |
906 | ||
907 | loaded_dll (buf2, load_addr); | |
908 | } | |
909 | ||
910 | static char * | |
911 | get_image_name (HANDLE h, void *address, int unicode) | |
912 | { | |
913 | static char buf[(2 * MAX_PATH) + 1]; | |
914 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
915 | char *address_ptr; | |
916 | int len = 0; | |
917 | char b[2]; | |
918 | DWORD done; | |
919 | ||
920 | /* Attempt to read the name of the dll that was detected. | |
921 | This is documented to work only when actively debugging | |
922 | a program. It will not work for attached processes. */ | |
923 | if (address == NULL) | |
924 | return NULL; | |
925 | ||
926 | #ifdef _WIN32_WCE | |
927 | /* Windows CE reports the address of the image name, | |
928 | instead of an address of a pointer into the image name. */ | |
929 | address_ptr = address; | |
930 | #else | |
931 | /* See if we could read the address of a string, and that the | |
932 | address isn't null. */ | |
933 | if (!ReadProcessMemory (h, address, &address_ptr, | |
934 | sizeof (address_ptr), &done) | |
935 | || done != sizeof (address_ptr) | |
936 | || !address_ptr) | |
937 | return NULL; | |
938 | #endif | |
939 | ||
940 | /* Find the length of the string */ | |
941 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) | |
942 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
943 | continue; | |
944 | ||
945 | if (!unicode) | |
946 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
947 | else | |
948 | { | |
949 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
950 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
951 | &done); | |
952 | ||
953 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
954 | } | |
955 | ||
956 | return buf; | |
957 | } | |
958 | ||
959 | typedef BOOL (WINAPI *winapi_EnumProcessModules) (HANDLE, HMODULE *, | |
960 | DWORD, LPDWORD); | |
961 | typedef BOOL (WINAPI *winapi_GetModuleInformation) (HANDLE, HMODULE, | |
962 | LPMODULEINFO, DWORD); | |
963 | typedef DWORD (WINAPI *winapi_GetModuleFileNameExA) (HANDLE, HMODULE, | |
964 | LPSTR, DWORD); | |
965 | ||
966 | static winapi_EnumProcessModules win32_EnumProcessModules; | |
967 | static winapi_GetModuleInformation win32_GetModuleInformation; | |
968 | static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA; | |
969 | ||
970 | static BOOL | |
971 | load_psapi (void) | |
972 | { | |
973 | static int psapi_loaded = 0; | |
974 | static HMODULE dll = NULL; | |
975 | ||
976 | if (!psapi_loaded) | |
977 | { | |
978 | psapi_loaded = 1; | |
979 | dll = LoadLibrary (TEXT("psapi.dll")); | |
980 | if (!dll) | |
981 | return FALSE; | |
982 | win32_EnumProcessModules = | |
983 | GETPROCADDRESS (dll, EnumProcessModules); | |
984 | win32_GetModuleInformation = | |
985 | GETPROCADDRESS (dll, GetModuleInformation); | |
986 | win32_GetModuleFileNameExA = | |
987 | GETPROCADDRESS (dll, GetModuleFileNameExA); | |
988 | } | |
989 | ||
990 | return (win32_EnumProcessModules != NULL | |
991 | && win32_GetModuleInformation != NULL | |
992 | && win32_GetModuleFileNameExA != NULL); | |
993 | } | |
994 | ||
995 | static int | |
996 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
997 | { | |
998 | DWORD len; | |
999 | MODULEINFO mi; | |
1000 | size_t i; | |
1001 | HMODULE dh_buf[1]; | |
1002 | HMODULE *DllHandle = dh_buf; | |
1003 | DWORD cbNeeded; | |
1004 | BOOL ok; | |
1005 | ||
1006 | if (!load_psapi ()) | |
1007 | goto failed; | |
1008 | ||
1009 | cbNeeded = 0; | |
1010 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1011 | DllHandle, | |
1012 | sizeof (HMODULE), | |
1013 | &cbNeeded); | |
1014 | ||
1015 | if (!ok || !cbNeeded) | |
1016 | goto failed; | |
1017 | ||
1018 | DllHandle = (HMODULE *) alloca (cbNeeded); | |
1019 | if (!DllHandle) | |
1020 | goto failed; | |
1021 | ||
1022 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1023 | DllHandle, | |
1024 | cbNeeded, | |
1025 | &cbNeeded); | |
1026 | if (!ok) | |
1027 | goto failed; | |
1028 | ||
1029 | for (i = 0; i < ((size_t) cbNeeded / sizeof (HMODULE)); i++) | |
1030 | { | |
1031 | if (!(*win32_GetModuleInformation) (current_process_handle, | |
1032 | DllHandle[i], | |
1033 | &mi, | |
1034 | sizeof (mi))) | |
1035 | { | |
1036 | DWORD err = GetLastError (); | |
1037 | error ("Can't get module info: (error %d): %s\n", | |
1038 | (int) err, strwinerror (err)); | |
1039 | } | |
1040 | ||
1041 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
1042 | { | |
1043 | len = (*win32_GetModuleFileNameExA) (current_process_handle, | |
1044 | DllHandle[i], | |
1045 | dll_name_ret, | |
1046 | MAX_PATH); | |
1047 | if (len == 0) | |
1048 | { | |
1049 | DWORD err = GetLastError (); | |
1050 | error ("Error getting dll name: (error %d): %s\n", | |
1051 | (int) err, strwinerror (err)); | |
1052 | } | |
1053 | return 1; | |
1054 | } | |
1055 | } | |
1056 | ||
1057 | failed: | |
1058 | dll_name_ret[0] = '\0'; | |
1059 | return 0; | |
1060 | } | |
1061 | ||
1062 | typedef HANDLE (WINAPI *winapi_CreateToolhelp32Snapshot) (DWORD, DWORD); | |
1063 | typedef BOOL (WINAPI *winapi_Module32First) (HANDLE, LPMODULEENTRY32); | |
1064 | typedef BOOL (WINAPI *winapi_Module32Next) (HANDLE, LPMODULEENTRY32); | |
1065 | ||
1066 | static winapi_CreateToolhelp32Snapshot win32_CreateToolhelp32Snapshot; | |
1067 | static winapi_Module32First win32_Module32First; | |
1068 | static winapi_Module32Next win32_Module32Next; | |
6b3d9b83 PA |
1069 | #ifdef _WIN32_WCE |
1070 | typedef BOOL (WINAPI *winapi_CloseToolhelp32Snapshot) (HANDLE); | |
1071 | static winapi_CloseToolhelp32Snapshot win32_CloseToolhelp32Snapshot; | |
1072 | #endif | |
255e7678 DJ |
1073 | |
1074 | static BOOL | |
1075 | load_toolhelp (void) | |
1076 | { | |
1077 | static int toolhelp_loaded = 0; | |
1078 | static HMODULE dll = NULL; | |
1079 | ||
1080 | if (!toolhelp_loaded) | |
1081 | { | |
1082 | toolhelp_loaded = 1; | |
1083 | #ifndef _WIN32_WCE | |
1084 | dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1085 | #else | |
6b3d9b83 | 1086 | dll = LoadLibrary (L"TOOLHELP.DLL"); |
255e7678 DJ |
1087 | #endif |
1088 | if (!dll) | |
1089 | return FALSE; | |
1090 | ||
1091 | win32_CreateToolhelp32Snapshot = | |
1092 | GETPROCADDRESS (dll, CreateToolhelp32Snapshot); | |
1093 | win32_Module32First = GETPROCADDRESS (dll, Module32First); | |
1094 | win32_Module32Next = GETPROCADDRESS (dll, Module32Next); | |
6b3d9b83 PA |
1095 | #ifdef _WIN32_WCE |
1096 | win32_CloseToolhelp32Snapshot = | |
1097 | GETPROCADDRESS (dll, CloseToolhelp32Snapshot); | |
1098 | #endif | |
255e7678 DJ |
1099 | } |
1100 | ||
1101 | return (win32_CreateToolhelp32Snapshot != NULL | |
1102 | && win32_Module32First != NULL | |
6b3d9b83 PA |
1103 | && win32_Module32Next != NULL |
1104 | #ifdef _WIN32_WCE | |
1105 | && win32_CloseToolhelp32Snapshot != NULL | |
1106 | #endif | |
1107 | ); | |
255e7678 DJ |
1108 | } |
1109 | ||
1110 | static int | |
1111 | toolhelp_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
1112 | { | |
1113 | HANDLE snapshot_module; | |
1114 | MODULEENTRY32 modEntry = { sizeof (MODULEENTRY32) }; | |
6b3d9b83 | 1115 | int found = 0; |
255e7678 DJ |
1116 | |
1117 | if (!load_toolhelp ()) | |
1118 | return 0; | |
1119 | ||
1120 | snapshot_module = win32_CreateToolhelp32Snapshot (TH32CS_SNAPMODULE, | |
1121 | current_event.dwProcessId); | |
1122 | if (snapshot_module == INVALID_HANDLE_VALUE) | |
1123 | return 0; | |
1124 | ||
1125 | /* Ignore the first module, which is the exe. */ | |
6b3d9b83 PA |
1126 | if (win32_Module32First (snapshot_module, &modEntry)) |
1127 | while (win32_Module32Next (snapshot_module, &modEntry)) | |
1128 | if ((DWORD) modEntry.modBaseAddr == BaseAddress) | |
1129 | { | |
255e7678 | 1130 | #ifdef UNICODE |
6b3d9b83 | 1131 | wcstombs (dll_name_ret, modEntry.szExePath, MAX_PATH + 1); |
255e7678 | 1132 | #else |
6b3d9b83 | 1133 | strcpy (dll_name_ret, modEntry.szExePath); |
255e7678 | 1134 | #endif |
6b3d9b83 PA |
1135 | found = 1; |
1136 | break; | |
1137 | } | |
255e7678 | 1138 | |
6b3d9b83 PA |
1139 | #ifdef _WIN32_WCE |
1140 | win32_CloseToolhelp32Snapshot (snapshot_module); | |
1141 | #else | |
255e7678 | 1142 | CloseHandle (snapshot_module); |
6b3d9b83 PA |
1143 | #endif |
1144 | return found; | |
255e7678 DJ |
1145 | } |
1146 | ||
1147 | static void | |
1148 | handle_load_dll (void) | |
1149 | { | |
1150 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
1151 | char dll_buf[MAX_PATH + 1]; | |
1152 | char *dll_name = NULL; | |
1153 | DWORD load_addr; | |
1154 | ||
1155 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; | |
1156 | ||
34d86ddd PA |
1157 | /* Windows does not report the image name of the dlls in the debug |
1158 | event on attaches. We resort to iterating over the list of | |
1159 | loaded dlls looking for a match by image base. */ | |
1160 | if (!psapi_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf)) | |
1161 | { | |
1162 | if (!server_waiting) | |
1163 | /* On some versions of Windows and Windows CE, we can't create | |
1164 | toolhelp snapshots while the inferior is stopped in a | |
1165 | LOAD_DLL_DEBUG_EVENT due to a dll load, but we can while | |
1166 | Windows is reporting the already loaded dlls. */ | |
1167 | toolhelp_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf); | |
1168 | } | |
255e7678 DJ |
1169 | |
1170 | dll_name = dll_buf; | |
1171 | ||
1172 | if (*dll_name == '\0') | |
1173 | dll_name = get_image_name (current_process_handle, | |
1174 | event->lpImageName, event->fUnicode); | |
1175 | if (!dll_name) | |
1176 | return; | |
1177 | ||
1178 | /* The symbols in a dll are offset by 0x1000, which is the | |
1179 | the offset from 0 of the first byte in an image - because | |
1180 | of the file header and the section alignment. */ | |
1181 | ||
1182 | load_addr = (DWORD) event->lpBaseOfDll + 0x1000; | |
1183 | win32_add_one_solib (dll_name, load_addr); | |
1184 | } | |
1185 | ||
1186 | static void | |
1187 | handle_unload_dll (void) | |
1188 | { | |
1189 | CORE_ADDR load_addr = | |
1190 | (CORE_ADDR) (DWORD) current_event.u.UnloadDll.lpBaseOfDll; | |
1191 | load_addr += 0x1000; | |
1192 | unloaded_dll (NULL, load_addr); | |
1193 | } | |
1194 | ||
34b34921 | 1195 | static void |
b80864fb DJ |
1196 | handle_exception (struct target_waitstatus *ourstatus) |
1197 | { | |
b80864fb DJ |
1198 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
1199 | ||
1200 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1201 | ||
b80864fb DJ |
1202 | switch (code) |
1203 | { | |
1204 | case EXCEPTION_ACCESS_VIOLATION: | |
1205 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
1206 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1207 | break; | |
1208 | case STATUS_STACK_OVERFLOW: | |
1209 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
1210 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1211 | break; | |
1212 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1213 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
1214 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1215 | break; | |
1216 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1217 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
1218 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1219 | break; | |
1220 | case STATUS_FLOAT_INEXACT_RESULT: | |
1221 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
1222 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1223 | break; | |
1224 | case STATUS_FLOAT_INVALID_OPERATION: | |
1225 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
1226 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1227 | break; | |
1228 | case STATUS_FLOAT_OVERFLOW: | |
1229 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
1230 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1231 | break; | |
1232 | case STATUS_FLOAT_STACK_CHECK: | |
1233 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
1234 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1235 | break; | |
1236 | case STATUS_FLOAT_UNDERFLOW: | |
1237 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
1238 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1239 | break; | |
1240 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
1241 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
1242 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1243 | break; | |
1244 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
1245 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
1246 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1247 | break; | |
1248 | case STATUS_INTEGER_OVERFLOW: | |
1249 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
1250 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1251 | break; | |
1252 | case EXCEPTION_BREAKPOINT: | |
1253 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
1254 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
ed50f18f PA |
1255 | #ifdef _WIN32_WCE |
1256 | /* Remove the initial breakpoint. */ | |
1257 | check_breakpoints ((CORE_ADDR) (long) current_event | |
1258 | .u.Exception.ExceptionRecord.ExceptionAddress); | |
1259 | #endif | |
b80864fb DJ |
1260 | break; |
1261 | case DBG_CONTROL_C: | |
1262 | OUTMSG2 (("DBG_CONTROL_C")); | |
1263 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1264 | break; | |
1265 | case DBG_CONTROL_BREAK: | |
1266 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
1267 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1268 | break; | |
1269 | case EXCEPTION_SINGLE_STEP: | |
1270 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
1271 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
1272 | break; | |
1273 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
1274 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
1275 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1276 | break; | |
1277 | case EXCEPTION_PRIV_INSTRUCTION: | |
1278 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
1279 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1280 | break; | |
1281 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1282 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
1283 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1284 | break; | |
1285 | default: | |
1286 | if (current_event.u.Exception.dwFirstChance) | |
34b34921 PA |
1287 | { |
1288 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1289 | return; | |
1290 | } | |
b80864fb DJ |
1291 | OUTMSG2 (("gdbserver: unknown target exception 0x%08lx at 0x%08lx", |
1292 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1293 | (DWORD) current_event.u.Exception.ExceptionRecord. | |
1294 | ExceptionAddress)); | |
1295 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
1296 | break; | |
1297 | } | |
1298 | OUTMSG2 (("\n")); | |
1299 | last_sig = ourstatus->value.sig; | |
b80864fb DJ |
1300 | } |
1301 | ||
4d5d1aaa | 1302 | |
34b34921 | 1303 | static void |
4d5d1aaa PA |
1304 | suspend_one_thread (struct inferior_list_entry *entry) |
1305 | { | |
1306 | struct thread_info *thread = (struct thread_info *) entry; | |
1307 | win32_thread_info *th = inferior_target_data (thread); | |
1308 | ||
1309 | if (!th->suspended) | |
1310 | { | |
1311 | if (SuspendThread (th->h) == (DWORD) -1) | |
1312 | { | |
1313 | DWORD err = GetLastError (); | |
1314 | OUTMSG (("warning: SuspendThread failed in suspend_one_thread, " | |
1315 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
1316 | } | |
1317 | else | |
1318 | th->suspended = 1; | |
1319 | } | |
1320 | } | |
1321 | ||
1322 | static void | |
1323 | fake_breakpoint_event (void) | |
b80864fb | 1324 | { |
4d5d1aaa | 1325 | OUTMSG2(("fake_breakpoint_event\n")); |
b80864fb | 1326 | |
4d5d1aaa PA |
1327 | faked_breakpoint = 1; |
1328 | ||
1329 | memset (¤t_event, 0, sizeof (current_event)); | |
1330 | current_event.dwThreadId = main_thread_id; | |
1331 | current_event.dwDebugEventCode = EXCEPTION_DEBUG_EVENT; | |
1332 | current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1333 | = EXCEPTION_BREAKPOINT; | |
1334 | ||
1335 | for_each_inferior (&all_threads, suspend_one_thread); | |
1336 | } | |
1337 | ||
b65d95c5 DJ |
1338 | #ifdef _WIN32_WCE |
1339 | static int | |
1340 | auto_delete_breakpoint (CORE_ADDR stop_pc) | |
1341 | { | |
1342 | return 1; | |
1343 | } | |
1344 | #endif | |
1345 | ||
4d5d1aaa PA |
1346 | /* Get the next event from the child. */ |
1347 | ||
1348 | static int | |
1349 | get_child_debug_event (struct target_waitstatus *ourstatus) | |
1350 | { | |
b80864fb DJ |
1351 | last_sig = TARGET_SIGNAL_0; |
1352 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1353 | ||
4d5d1aaa PA |
1354 | /* Check if GDB sent us an interrupt request. */ |
1355 | check_remote_input_interrupt_request (); | |
1356 | ||
1357 | if (soft_interrupt_requested) | |
1358 | { | |
1359 | soft_interrupt_requested = 0; | |
1360 | fake_breakpoint_event (); | |
1361 | goto gotevent; | |
1362 | } | |
1363 | ||
d97903b2 PA |
1364 | #ifndef _WIN32_WCE |
1365 | attaching = 0; | |
1366 | #else | |
1367 | if (attaching) | |
1368 | { | |
1369 | /* WinCE doesn't set an initial breakpoint automatically. To | |
1370 | stop the inferior, we flush all currently pending debug | |
1371 | events -- the thread list and the dll list are always | |
1372 | reported immediatelly without delay, then, we suspend all | |
1373 | threads and pretend we saw a trap at the current PC of the | |
1374 | main thread. | |
1375 | ||
1376 | Contrary to desktop Windows, Windows CE *does* report the dll | |
1377 | names on LOAD_DLL_DEBUG_EVENTs resulting from a | |
1378 | DebugActiveProcess call. This limits the way we can detect | |
1379 | if all the dlls have already been reported. If we get a real | |
1380 | debug event before leaving attaching, the worst that will | |
1381 | happen is the user will see a spurious breakpoint. */ | |
1382 | ||
1383 | current_event.dwDebugEventCode = 0; | |
1384 | if (!WaitForDebugEvent (¤t_event, 0)) | |
1385 | { | |
1386 | OUTMSG2(("no attach events left\n")); | |
1387 | fake_breakpoint_event (); | |
1388 | attaching = 0; | |
1389 | } | |
1390 | else | |
1391 | OUTMSG2(("got attach event\n")); | |
1392 | } | |
1393 | else | |
1394 | #endif | |
1395 | { | |
1396 | /* Keep the wait time low enough for confortable remote | |
1397 | interruption, but high enough so gdbserver doesn't become a | |
1398 | bottleneck. */ | |
1399 | if (!WaitForDebugEvent (¤t_event, 250)) | |
1400 | return 0; | |
1401 | } | |
4d5d1aaa PA |
1402 | |
1403 | gotevent: | |
b80864fb DJ |
1404 | |
1405 | current_inferior = | |
1406 | (struct thread_info *) find_inferior_id (&all_threads, | |
1407 | current_event.dwThreadId); | |
1408 | ||
34b34921 | 1409 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
1410 | { |
1411 | case CREATE_THREAD_DEBUG_EVENT: | |
1412 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
1413 | "for pid=%d tid=%x)\n", | |
1414 | (unsigned) current_event.dwProcessId, | |
1415 | (unsigned) current_event.dwThreadId)); | |
1416 | ||
1417 | /* Record the existence of this thread. */ | |
34b34921 | 1418 | child_add_thread (current_event.dwThreadId, |
b80864fb | 1419 | current_event.u.CreateThread.hThread); |
b80864fb DJ |
1420 | break; |
1421 | ||
1422 | case EXIT_THREAD_DEBUG_EVENT: | |
1423 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
1424 | "for pid=%d tid=%x\n", | |
1425 | (unsigned) current_event.dwProcessId, | |
1426 | (unsigned) current_event.dwThreadId)); | |
1427 | child_delete_thread (current_event.dwThreadId); | |
b80864fb DJ |
1428 | break; |
1429 | ||
1430 | case CREATE_PROCESS_DEBUG_EVENT: | |
1431 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
1432 | "for pid=%d tid=%x\n", | |
1433 | (unsigned) current_event.dwProcessId, | |
1434 | (unsigned) current_event.dwThreadId)); | |
1435 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
1436 | ||
1437 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1438 | main_thread_id = current_event.dwThreadId; | |
1439 | ||
1440 | ourstatus->kind = TARGET_WAITKIND_EXECD; | |
1441 | ourstatus->value.execd_pathname = "Main executable"; | |
1442 | ||
1443 | /* Add the main thread. */ | |
34b34921 PA |
1444 | child_add_thread (main_thread_id, |
1445 | current_event.u.CreateProcessInfo.hThread); | |
b80864fb | 1446 | |
34b34921 | 1447 | ourstatus->value.related_pid = current_event.dwThreadId; |
ed50f18f | 1448 | #ifdef _WIN32_WCE |
d97903b2 PA |
1449 | if (!attaching) |
1450 | { | |
1451 | /* Windows CE doesn't set the initial breakpoint | |
1452 | automatically like the desktop versions of Windows do. | |
1453 | We add it explicitly here. It will be removed as soon as | |
1454 | it is hit. */ | |
1455 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
1456 | .CreateProcessInfo.lpStartAddress, | |
b65d95c5 | 1457 | auto_delete_breakpoint); |
d97903b2 | 1458 | } |
ed50f18f | 1459 | #endif |
b80864fb DJ |
1460 | break; |
1461 | ||
1462 | case EXIT_PROCESS_DEBUG_EVENT: | |
1463 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
1464 | "for pid=%d tid=%x\n", | |
1465 | (unsigned) current_event.dwProcessId, | |
1466 | (unsigned) current_event.dwThreadId)); | |
1467 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1468 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1469 | CloseHandle (current_process_handle); | |
9d606399 | 1470 | current_process_handle = NULL; |
b80864fb DJ |
1471 | break; |
1472 | ||
1473 | case LOAD_DLL_DEBUG_EVENT: | |
1474 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
1475 | "for pid=%d tid=%x\n", | |
1476 | (unsigned) current_event.dwProcessId, | |
1477 | (unsigned) current_event.dwThreadId)); | |
1478 | CloseHandle (current_event.u.LoadDll.hFile); | |
255e7678 | 1479 | handle_load_dll (); |
b80864fb DJ |
1480 | |
1481 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
255e7678 | 1482 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
b80864fb DJ |
1483 | break; |
1484 | ||
1485 | case UNLOAD_DLL_DEBUG_EVENT: | |
1486 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
1487 | "for pid=%d tid=%x\n", | |
1488 | (unsigned) current_event.dwProcessId, | |
1489 | (unsigned) current_event.dwThreadId)); | |
255e7678 DJ |
1490 | handle_unload_dll (); |
1491 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
1492 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
b80864fb DJ |
1493 | break; |
1494 | ||
1495 | case EXCEPTION_DEBUG_EVENT: | |
1496 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
1497 | "for pid=%d tid=%x\n", | |
1498 | (unsigned) current_event.dwProcessId, | |
1499 | (unsigned) current_event.dwThreadId)); | |
34b34921 | 1500 | handle_exception (ourstatus); |
b80864fb DJ |
1501 | break; |
1502 | ||
1503 | case OUTPUT_DEBUG_STRING_EVENT: | |
1504 | /* A message from the kernel (or Cygwin). */ | |
1505 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
1506 | "for pid=%d tid=%x\n", | |
1507 | (unsigned) current_event.dwProcessId, | |
1508 | (unsigned) current_event.dwThreadId)); | |
bce7165d | 1509 | handle_output_debug_string (ourstatus); |
b80864fb DJ |
1510 | break; |
1511 | ||
1512 | default: | |
1513 | OUTMSG2 (("gdbserver: kernel event unknown " | |
1514 | "for pid=%d tid=%x code=%ld\n", | |
1515 | (unsigned) current_event.dwProcessId, | |
1516 | (unsigned) current_event.dwThreadId, | |
1517 | current_event.dwDebugEventCode)); | |
1518 | break; | |
1519 | } | |
1520 | ||
1521 | current_inferior = | |
1522 | (struct thread_info *) find_inferior_id (&all_threads, | |
1523 | current_event.dwThreadId); | |
4d5d1aaa | 1524 | return 1; |
b80864fb DJ |
1525 | } |
1526 | ||
1527 | /* Wait for the inferior process to change state. | |
1528 | STATUS will be filled in with a response code to send to GDB. | |
1529 | Returns the signal which caused the process to stop. */ | |
1530 | static unsigned char | |
1531 | win32_wait (char *status) | |
1532 | { | |
1533 | struct target_waitstatus our_status; | |
1534 | ||
1535 | *status = 'T'; | |
1536 | ||
1537 | while (1) | |
1538 | { | |
4d5d1aaa PA |
1539 | if (!get_child_debug_event (&our_status)) |
1540 | continue; | |
b80864fb | 1541 | |
34b34921 | 1542 | switch (our_status.kind) |
b80864fb | 1543 | { |
34b34921 | 1544 | case TARGET_WAITKIND_EXITED: |
b80864fb DJ |
1545 | OUTMSG2 (("Child exited with retcode = %x\n", |
1546 | our_status.value.integer)); | |
1547 | ||
1548 | *status = 'W'; | |
b80864fb | 1549 | return our_status.value.integer; |
34b34921 | 1550 | case TARGET_WAITKIND_STOPPED: |
255e7678 | 1551 | case TARGET_WAITKIND_LOADED: |
f72f3e60 | 1552 | OUTMSG2 (("Child Stopped with signal = %d \n", |
ed50f18f | 1553 | our_status.value.sig)); |
b80864fb DJ |
1554 | |
1555 | *status = 'T'; | |
1556 | ||
1557 | child_fetch_inferior_registers (-1); | |
1558 | ||
255e7678 DJ |
1559 | if (our_status.kind == TARGET_WAITKIND_LOADED |
1560 | && !server_waiting) | |
1561 | { | |
1562 | /* When gdb connects, we want to be stopped at the | |
1563 | initial breakpoint, not in some dll load event. */ | |
1564 | child_continue (DBG_CONTINUE, -1); | |
1565 | break; | |
1566 | } | |
1567 | ||
b80864fb | 1568 | return our_status.value.sig; |
34b34921 PA |
1569 | default: |
1570 | OUTMSG (("Ignoring unknown internal event, %d\n", our_status.kind)); | |
1571 | /* fall-through */ | |
1572 | case TARGET_WAITKIND_SPURIOUS: | |
34b34921 PA |
1573 | case TARGET_WAITKIND_EXECD: |
1574 | /* do nothing, just continue */ | |
1575 | child_continue (DBG_CONTINUE, -1); | |
1576 | break; | |
b80864fb | 1577 | } |
b80864fb DJ |
1578 | } |
1579 | } | |
1580 | ||
1581 | /* Fetch registers from the inferior process. | |
1582 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
1583 | static void | |
1584 | win32_fetch_inferior_registers (int regno) | |
1585 | { | |
1586 | child_fetch_inferior_registers (regno); | |
1587 | } | |
1588 | ||
1589 | /* Store registers to the inferior process. | |
1590 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
1591 | static void | |
1592 | win32_store_inferior_registers (int regno) | |
1593 | { | |
1594 | child_store_inferior_registers (regno); | |
1595 | } | |
1596 | ||
1597 | /* Read memory from the inferior process. This should generally be | |
1598 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1599 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
1600 | static int | |
1601 | win32_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) | |
1602 | { | |
ed50f18f | 1603 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1604 | } |
1605 | ||
1606 | /* Write memory to the inferior process. This should generally be | |
1607 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1608 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1609 | Returns 0 on success and errno on failure. */ | |
1610 | static int | |
1611 | win32_write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, | |
1612 | int len) | |
1613 | { | |
1614 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1615 | } | |
1616 | ||
7390519e PA |
1617 | /* Send an interrupt request to the inferior process. */ |
1618 | static void | |
1619 | win32_request_interrupt (void) | |
1620 | { | |
1621 | winapi_DebugBreakProcess DebugBreakProcess; | |
1622 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1623 | ||
1624 | #ifdef _WIN32_WCE | |
1625 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1626 | #else | |
1627 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1628 | #endif | |
1629 | ||
1630 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1631 | ||
1632 | if (GenerateConsoleCtrlEvent != NULL | |
1633 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1634 | return; | |
1635 | ||
1636 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1637 | not a process group id. | |
1638 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1639 | breakpoint exception in the interior process. */ | |
1640 | ||
1641 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1642 | ||
1643 | if (DebugBreakProcess != NULL | |
1644 | && DebugBreakProcess (current_process_handle)) | |
1645 | return; | |
1646 | ||
4d5d1aaa PA |
1647 | /* Last resort, suspend all threads manually. */ |
1648 | soft_interrupt_requested = 1; | |
7390519e PA |
1649 | } |
1650 | ||
820f2bda PA |
1651 | static const char * |
1652 | win32_arch_string (void) | |
1653 | { | |
ed50f18f | 1654 | return the_low_target.arch_string; |
820f2bda PA |
1655 | } |
1656 | ||
59a016f0 PA |
1657 | #ifdef _WIN32_WCE |
1658 | int | |
1659 | win32_error_to_fileio_error (DWORD err) | |
1660 | { | |
1661 | switch (err) | |
1662 | { | |
1663 | case ERROR_BAD_PATHNAME: | |
1664 | case ERROR_FILE_NOT_FOUND: | |
1665 | case ERROR_INVALID_NAME: | |
1666 | case ERROR_PATH_NOT_FOUND: | |
1667 | return FILEIO_ENOENT; | |
1668 | case ERROR_CRC: | |
1669 | case ERROR_IO_DEVICE: | |
1670 | case ERROR_OPEN_FAILED: | |
1671 | return FILEIO_EIO; | |
1672 | case ERROR_INVALID_HANDLE: | |
1673 | return FILEIO_EBADF; | |
1674 | case ERROR_ACCESS_DENIED: | |
1675 | case ERROR_SHARING_VIOLATION: | |
1676 | return FILEIO_EACCES; | |
1677 | case ERROR_NOACCESS: | |
1678 | return FILEIO_EFAULT; | |
1679 | case ERROR_BUSY: | |
1680 | return FILEIO_EBUSY; | |
1681 | case ERROR_ALREADY_EXISTS: | |
1682 | case ERROR_FILE_EXISTS: | |
1683 | return FILEIO_EEXIST; | |
1684 | case ERROR_BAD_DEVICE: | |
1685 | return FILEIO_ENODEV; | |
1686 | case ERROR_DIRECTORY: | |
1687 | return FILEIO_ENOTDIR; | |
1688 | case ERROR_FILENAME_EXCED_RANGE: | |
1689 | case ERROR_INVALID_DATA: | |
1690 | case ERROR_INVALID_PARAMETER: | |
1691 | case ERROR_NEGATIVE_SEEK: | |
1692 | return FILEIO_EINVAL; | |
1693 | case ERROR_TOO_MANY_OPEN_FILES: | |
1694 | return FILEIO_EMFILE; | |
1695 | case ERROR_HANDLE_DISK_FULL: | |
1696 | case ERROR_DISK_FULL: | |
1697 | return FILEIO_ENOSPC; | |
1698 | case ERROR_WRITE_PROTECT: | |
1699 | return FILEIO_EROFS; | |
1700 | case ERROR_NOT_SUPPORTED: | |
1701 | return FILEIO_ENOSYS; | |
1702 | } | |
1703 | ||
1704 | return FILEIO_EUNKNOWN; | |
1705 | } | |
1706 | ||
1707 | static void | |
1708 | wince_hostio_last_error (char *buf) | |
1709 | { | |
1710 | DWORD winerr = GetLastError (); | |
1711 | int fileio_err = win32_error_to_fileio_error (winerr); | |
1712 | sprintf (buf, "F-1,%x", fileio_err); | |
1713 | } | |
1714 | #endif | |
1715 | ||
b80864fb DJ |
1716 | static struct target_ops win32_target_ops = { |
1717 | win32_create_inferior, | |
1718 | win32_attach, | |
1719 | win32_kill, | |
1720 | win32_detach, | |
444d6139 | 1721 | win32_join, |
b80864fb DJ |
1722 | win32_thread_alive, |
1723 | win32_resume, | |
1724 | win32_wait, | |
1725 | win32_fetch_inferior_registers, | |
1726 | win32_store_inferior_registers, | |
1727 | win32_read_inferior_memory, | |
1728 | win32_write_inferior_memory, | |
820f2bda | 1729 | NULL, |
7390519e | 1730 | win32_request_interrupt, |
820f2bda PA |
1731 | NULL, |
1732 | NULL, | |
1733 | NULL, | |
1734 | NULL, | |
1735 | NULL, | |
1736 | NULL, | |
1737 | NULL, | |
59a016f0 PA |
1738 | win32_arch_string, |
1739 | NULL, | |
1740 | #ifdef _WIN32_WCE | |
1741 | wince_hostio_last_error, | |
1742 | #else | |
1743 | hostio_last_error_from_errno, | |
1744 | #endif | |
b80864fb DJ |
1745 | }; |
1746 | ||
1747 | /* Initialize the Win32 backend. */ | |
1748 | void | |
1749 | initialize_low (void) | |
1750 | { | |
1751 | set_target_ops (&win32_target_ops); | |
ed50f18f PA |
1752 | if (the_low_target.breakpoint != NULL) |
1753 | set_breakpoint_data (the_low_target.breakpoint, | |
1754 | the_low_target.breakpoint_len); | |
b80864fb DJ |
1755 | init_registers (); |
1756 | } |