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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). */ | |
95954743 PA |
97 | static ptid_t |
98 | current_inferior_ptid (void) | |
b80864fb | 99 | { |
95954743 PA |
100 | return ((struct inferior_list_entry*) current_inferior)->id; |
101 | } | |
102 | ||
103 | /* The current debug event from WaitForDebugEvent. */ | |
104 | static ptid_t | |
105 | debug_event_ptid (DEBUG_EVENT *event) | |
106 | { | |
107 | return ptid_build (event->dwProcessId, event->dwThreadId, 0); | |
b80864fb DJ |
108 | } |
109 | ||
9c6c8194 PA |
110 | /* Get the thread context of the thread associated with TH. */ |
111 | ||
112 | static void | |
113 | win32_get_thread_context (win32_thread_info *th) | |
114 | { | |
115 | memset (&th->context, 0, sizeof (CONTEXT)); | |
116 | (*the_low_target.get_thread_context) (th, ¤t_event); | |
117 | #ifdef _WIN32_WCE | |
118 | memcpy (&th->base_context, &th->context, sizeof (CONTEXT)); | |
119 | #endif | |
120 | } | |
121 | ||
122 | /* Set the thread context of the thread associated with TH. */ | |
123 | ||
124 | static void | |
125 | win32_set_thread_context (win32_thread_info *th) | |
126 | { | |
127 | #ifdef _WIN32_WCE | |
128 | /* Calling SuspendThread on a thread that is running kernel code | |
129 | will report that the suspending was successful, but in fact, that | |
130 | will often not be true. In those cases, the context returned by | |
131 | GetThreadContext will not be correct by the time the thread | |
132 | stops, hence we can't set that context back into the thread when | |
133 | resuming - it will most likelly crash the inferior. | |
134 | Unfortunately, there is no way to know when the thread will | |
135 | really stop. To work around it, we'll only write the context | |
136 | back to the thread when either the user or GDB explicitly change | |
137 | it between stopping and resuming. */ | |
138 | if (memcmp (&th->context, &th->base_context, sizeof (CONTEXT)) != 0) | |
139 | #endif | |
140 | (*the_low_target.set_thread_context) (th, ¤t_event); | |
141 | } | |
142 | ||
b80864fb DJ |
143 | /* Find a thread record given a thread id. If GET_CONTEXT is set then |
144 | also retrieve the context for this thread. */ | |
41093d81 | 145 | static win32_thread_info * |
95954743 | 146 | thread_rec (ptid_t ptid, int get_context) |
b80864fb DJ |
147 | { |
148 | struct thread_info *thread; | |
41093d81 | 149 | win32_thread_info *th; |
b80864fb | 150 | |
95954743 | 151 | thread = (struct thread_info *) find_inferior_id (&all_threads, ptid); |
b80864fb DJ |
152 | if (thread == NULL) |
153 | return NULL; | |
154 | ||
155 | th = inferior_target_data (thread); | |
c436e841 | 156 | if (get_context && th->context.ContextFlags == 0) |
b80864fb | 157 | { |
c436e841 PA |
158 | if (!th->suspended) |
159 | { | |
160 | if (SuspendThread (th->h) == (DWORD) -1) | |
161 | { | |
162 | DWORD err = GetLastError (); | |
163 | OUTMSG (("warning: SuspendThread failed in thread_rec, " | |
164 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
165 | } | |
166 | else | |
167 | th->suspended = 1; | |
168 | } | |
b80864fb | 169 | |
9c6c8194 | 170 | win32_get_thread_context (th); |
b80864fb DJ |
171 | } |
172 | ||
173 | return th; | |
174 | } | |
175 | ||
176 | /* Add a thread to the thread list. */ | |
41093d81 | 177 | static win32_thread_info * |
95954743 | 178 | child_add_thread (DWORD pid, DWORD tid, HANDLE h) |
b80864fb | 179 | { |
41093d81 | 180 | win32_thread_info *th; |
95954743 | 181 | ptid_t ptid = ptid_build (pid, tid, 0); |
b80864fb | 182 | |
95954743 | 183 | if ((th = thread_rec (ptid, FALSE))) |
b80864fb DJ |
184 | return th; |
185 | ||
bca929d3 | 186 | th = xcalloc (1, sizeof (*th)); |
b80864fb DJ |
187 | th->tid = tid; |
188 | th->h = h; | |
189 | ||
95954743 | 190 | add_thread (ptid, th); |
b80864fb | 191 | set_inferior_regcache_data ((struct thread_info *) |
95954743 | 192 | find_inferior_id (&all_threads, ptid), |
b80864fb DJ |
193 | new_register_cache ()); |
194 | ||
34b34921 PA |
195 | if (the_low_target.thread_added != NULL) |
196 | (*the_low_target.thread_added) (th); | |
b80864fb DJ |
197 | |
198 | return th; | |
199 | } | |
200 | ||
201 | /* Delete a thread from the list of threads. */ | |
202 | static void | |
203 | delete_thread_info (struct inferior_list_entry *thread) | |
204 | { | |
41093d81 | 205 | win32_thread_info *th = inferior_target_data ((struct thread_info *) thread); |
b80864fb DJ |
206 | |
207 | remove_thread ((struct thread_info *) thread); | |
208 | CloseHandle (th->h); | |
209 | free (th); | |
210 | } | |
211 | ||
212 | /* Delete a thread from the list of threads. */ | |
213 | static void | |
95954743 | 214 | child_delete_thread (DWORD pid, DWORD tid) |
b80864fb DJ |
215 | { |
216 | struct inferior_list_entry *thread; | |
95954743 | 217 | ptid_t ptid; |
b80864fb DJ |
218 | |
219 | /* If the last thread is exiting, just return. */ | |
220 | if (all_threads.head == all_threads.tail) | |
221 | return; | |
222 | ||
95954743 PA |
223 | ptid = ptid_build (pid, tid, 0); |
224 | thread = find_inferior_id (&all_threads, ptid); | |
b80864fb DJ |
225 | if (thread == NULL) |
226 | return; | |
227 | ||
228 | delete_thread_info (thread); | |
229 | } | |
230 | ||
aa5ca48f DE |
231 | /* These watchpoint related wrapper functions simply pass on the function call |
232 | if the low target has registered a corresponding function. */ | |
233 | ||
234 | static int | |
235 | win32_insert_point (char type, CORE_ADDR addr, int len) | |
236 | { | |
237 | if (the_low_target.insert_point != NULL) | |
238 | return the_low_target.insert_point (type, addr, len); | |
239 | else | |
240 | /* Unsupported (see target.h). */ | |
241 | return 1; | |
242 | } | |
243 | ||
244 | static int | |
245 | win32_remove_point (char type, CORE_ADDR addr, int len) | |
246 | { | |
247 | if (the_low_target.remove_point != NULL) | |
248 | return the_low_target.remove_point (type, addr, len); | |
249 | else | |
250 | /* Unsupported (see target.h). */ | |
251 | return 1; | |
252 | } | |
253 | ||
254 | static int | |
255 | win32_stopped_by_watchpoint (void) | |
256 | { | |
257 | if (the_low_target.stopped_by_watchpoint != NULL) | |
258 | return the_low_target.stopped_by_watchpoint (); | |
259 | else | |
260 | return 0; | |
261 | } | |
262 | ||
263 | static CORE_ADDR | |
264 | win32_stopped_data_address (void) | |
265 | { | |
266 | if (the_low_target.stopped_data_address != NULL) | |
267 | return the_low_target.stopped_data_address (); | |
268 | else | |
269 | return 0; | |
270 | } | |
271 | ||
272 | ||
b80864fb DJ |
273 | /* Transfer memory from/to the debugged process. */ |
274 | static int | |
275 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
276 | int write, struct target_ops *target) | |
277 | { | |
278 | SIZE_T done; | |
279 | long addr = (long) memaddr; | |
280 | ||
281 | if (write) | |
282 | { | |
283 | WriteProcessMemory (current_process_handle, (LPVOID) addr, | |
284 | (LPCVOID) our, len, &done); | |
285 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); | |
286 | } | |
287 | else | |
288 | { | |
289 | ReadProcessMemory (current_process_handle, (LPCVOID) addr, (LPVOID) our, | |
290 | len, &done); | |
291 | } | |
292 | return done; | |
293 | } | |
294 | ||
ed50f18f | 295 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
296 | state. */ |
297 | static void | |
298 | child_init_thread_list (void) | |
299 | { | |
300 | for_each_inferior (&all_threads, delete_thread_info); | |
301 | } | |
302 | ||
303 | static void | |
95954743 | 304 | do_initial_child_stuff (HANDLE proch, DWORD pid, int attached) |
b80864fb | 305 | { |
b80864fb DJ |
306 | last_sig = TARGET_SIGNAL_0; |
307 | ||
5ac588cf PA |
308 | current_process_handle = proch; |
309 | current_process_id = pid; | |
310 | main_thread_id = 0; | |
311 | ||
312 | soft_interrupt_requested = 0; | |
313 | faked_breakpoint = 0; | |
314 | ||
b80864fb DJ |
315 | memset (¤t_event, 0, sizeof (current_event)); |
316 | ||
95954743 | 317 | add_process (pid, attached); |
b80864fb | 318 | child_init_thread_list (); |
ed50f18f PA |
319 | |
320 | if (the_low_target.initial_stuff != NULL) | |
321 | (*the_low_target.initial_stuff) (); | |
b80864fb DJ |
322 | } |
323 | ||
324 | /* Resume all artificially suspended threads if we are continuing | |
325 | execution. */ | |
326 | static int | |
327 | continue_one_thread (struct inferior_list_entry *this_thread, void *id_ptr) | |
328 | { | |
329 | struct thread_info *thread = (struct thread_info *) this_thread; | |
330 | int thread_id = * (int *) id_ptr; | |
41093d81 | 331 | win32_thread_info *th = inferior_target_data (thread); |
b80864fb DJ |
332 | |
333 | if ((thread_id == -1 || thread_id == th->tid) | |
c436e841 | 334 | && th->suspended) |
b80864fb | 335 | { |
34b34921 | 336 | if (th->context.ContextFlags) |
b80864fb | 337 | { |
9c6c8194 | 338 | win32_set_thread_context (th); |
b80864fb DJ |
339 | th->context.ContextFlags = 0; |
340 | } | |
34b34921 | 341 | |
c436e841 PA |
342 | if (ResumeThread (th->h) == (DWORD) -1) |
343 | { | |
344 | DWORD err = GetLastError (); | |
345 | OUTMSG (("warning: ResumeThread failed in continue_one_thread, " | |
346 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
347 | } | |
348 | th->suspended = 0; | |
b80864fb DJ |
349 | } |
350 | ||
351 | return 0; | |
352 | } | |
353 | ||
354 | static BOOL | |
355 | child_continue (DWORD continue_status, int thread_id) | |
356 | { | |
4d5d1aaa PA |
357 | /* The inferior will only continue after the ContinueDebugEvent |
358 | call. */ | |
359 | find_inferior (&all_threads, continue_one_thread, &thread_id); | |
360 | faked_breakpoint = 0; | |
b80864fb | 361 | |
4d5d1aaa PA |
362 | if (!ContinueDebugEvent (current_event.dwProcessId, |
363 | current_event.dwThreadId, | |
364 | continue_status)) | |
365 | return FALSE; | |
b80864fb | 366 | |
4d5d1aaa | 367 | return TRUE; |
b80864fb DJ |
368 | } |
369 | ||
b80864fb DJ |
370 | /* Fetch register(s) from the current thread context. */ |
371 | static void | |
372 | child_fetch_inferior_registers (int r) | |
373 | { | |
374 | int regno; | |
95954743 | 375 | win32_thread_info *th = thread_rec (current_inferior_ptid (), TRUE); |
4463ce24 | 376 | if (r == -1 || r > NUM_REGS) |
b80864fb DJ |
377 | child_fetch_inferior_registers (NUM_REGS); |
378 | else | |
379 | for (regno = 0; regno < r; regno++) | |
34b34921 | 380 | (*the_low_target.fetch_inferior_register) (th, regno); |
b80864fb DJ |
381 | } |
382 | ||
383 | /* Store a new register value into the current thread context. We don't | |
384 | change the program's context until later, when we resume it. */ | |
385 | static void | |
386 | child_store_inferior_registers (int r) | |
387 | { | |
388 | int regno; | |
95954743 | 389 | win32_thread_info *th = thread_rec (current_inferior_ptid (), TRUE); |
b80864fb DJ |
390 | if (r == -1 || r == 0 || r > NUM_REGS) |
391 | child_store_inferior_registers (NUM_REGS); | |
392 | else | |
393 | for (regno = 0; regno < r; regno++) | |
34b34921 | 394 | (*the_low_target.store_inferior_register) (th, regno); |
b80864fb DJ |
395 | } |
396 | ||
ed50f18f PA |
397 | /* Map the Windows error number in ERROR to a locale-dependent error |
398 | message string and return a pointer to it. Typically, the values | |
399 | for ERROR come from GetLastError. | |
400 | ||
401 | The string pointed to shall not be modified by the application, | |
402 | but may be overwritten by a subsequent call to strwinerror | |
403 | ||
404 | The strwinerror function does not change the current setting | |
405 | of GetLastError. */ | |
406 | ||
407 | char * | |
408 | strwinerror (DWORD error) | |
409 | { | |
410 | static char buf[1024]; | |
411 | TCHAR *msgbuf; | |
412 | DWORD lasterr = GetLastError (); | |
413 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
414 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
415 | NULL, | |
416 | error, | |
417 | 0, /* Default language */ | |
418 | (LPVOID)&msgbuf, | |
419 | 0, | |
420 | NULL); | |
421 | if (chars != 0) | |
422 | { | |
423 | /* If there is an \r\n appended, zap it. */ | |
424 | if (chars >= 2 | |
425 | && msgbuf[chars - 2] == '\r' | |
426 | && msgbuf[chars - 1] == '\n') | |
427 | { | |
428 | chars -= 2; | |
429 | msgbuf[chars] = 0; | |
430 | } | |
431 | ||
432 | if (chars > ((COUNTOF (buf)) - 1)) | |
433 | { | |
434 | chars = COUNTOF (buf) - 1; | |
435 | msgbuf [chars] = 0; | |
436 | } | |
437 | ||
438 | #ifdef UNICODE | |
439 | wcstombs (buf, msgbuf, chars + 1); | |
440 | #else | |
441 | strncpy (buf, msgbuf, chars + 1); | |
442 | #endif | |
443 | LocalFree (msgbuf); | |
444 | } | |
445 | else | |
446 | sprintf (buf, "unknown win32 error (%ld)", error); | |
447 | ||
448 | SetLastError (lasterr); | |
449 | return buf; | |
450 | } | |
451 | ||
aec18585 PA |
452 | static BOOL |
453 | create_process (const char *program, char *args, | |
454 | DWORD flags, PROCESS_INFORMATION *pi) | |
455 | { | |
456 | BOOL ret; | |
457 | ||
458 | #ifdef _WIN32_WCE | |
459 | wchar_t *p, *wprogram, *wargs; | |
460 | size_t argslen; | |
461 | ||
462 | wprogram = alloca ((strlen (program) + 1) * sizeof (wchar_t)); | |
463 | mbstowcs (wprogram, program, strlen (program) + 1); | |
464 | ||
465 | for (p = wprogram; *p; ++p) | |
466 | if (L'/' == *p) | |
467 | *p = L'\\'; | |
468 | ||
469 | argslen = strlen (args); | |
470 | wargs = alloca ((argslen + 1) * sizeof (wchar_t)); | |
471 | mbstowcs (wargs, args, argslen + 1); | |
472 | ||
473 | ret = CreateProcessW (wprogram, /* image name */ | |
1b3f6016 PA |
474 | wargs, /* command line */ |
475 | NULL, /* security, not supported */ | |
476 | NULL, /* thread, not supported */ | |
477 | FALSE, /* inherit handles, not supported */ | |
478 | flags, /* start flags */ | |
479 | NULL, /* environment, not supported */ | |
480 | NULL, /* current directory, not supported */ | |
481 | NULL, /* start info, not supported */ | |
482 | pi); /* proc info */ | |
aec18585 PA |
483 | #else |
484 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; | |
485 | ||
486 | ret = CreateProcessA (program, /* image name */ | |
487 | args, /* command line */ | |
488 | NULL, /* security */ | |
489 | NULL, /* thread */ | |
490 | TRUE, /* inherit handles */ | |
491 | flags, /* start flags */ | |
492 | NULL, /* environment */ | |
493 | NULL, /* current directory */ | |
494 | &si, /* start info */ | |
495 | pi); /* proc info */ | |
496 | #endif | |
497 | ||
498 | return ret; | |
499 | } | |
500 | ||
b80864fb DJ |
501 | /* Start a new process. |
502 | PROGRAM is a path to the program to execute. | |
503 | ARGS is a standard NULL-terminated array of arguments, | |
504 | to be passed to the inferior as ``argv''. | |
505 | Returns the new PID on success, -1 on failure. Registers the new | |
506 | process with the process list. */ | |
507 | static int | |
508 | win32_create_inferior (char *program, char **program_args) | |
509 | { | |
510 | #ifndef USE_WIN32API | |
511 | char real_path[MAXPATHLEN]; | |
512 | char *orig_path, *new_path, *path_ptr; | |
513 | #endif | |
b80864fb DJ |
514 | BOOL ret; |
515 | DWORD flags; | |
516 | char *args; | |
517 | int argslen; | |
518 | int argc; | |
ed50f18f | 519 | PROCESS_INFORMATION pi; |
aec18585 | 520 | DWORD err; |
b80864fb | 521 | |
d97903b2 PA |
522 | /* win32_wait needs to know we're not attaching. */ |
523 | attaching = 0; | |
524 | ||
b80864fb DJ |
525 | if (!program) |
526 | error ("No executable specified, specify executable to debug.\n"); | |
527 | ||
b80864fb DJ |
528 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
529 | ||
530 | #ifndef USE_WIN32API | |
531 | orig_path = NULL; | |
532 | path_ptr = getenv ("PATH"); | |
533 | if (path_ptr) | |
534 | { | |
535 | orig_path = alloca (strlen (path_ptr) + 1); | |
536 | new_path = alloca (cygwin_posix_to_win32_path_list_buf_size (path_ptr)); | |
537 | strcpy (orig_path, path_ptr); | |
538 | cygwin_posix_to_win32_path_list (path_ptr, new_path); | |
539 | setenv ("PATH", new_path, 1); | |
540 | } | |
541 | cygwin_conv_to_win32_path (program, real_path); | |
542 | program = real_path; | |
543 | #endif | |
544 | ||
ed50f18f | 545 | argslen = 1; |
b80864fb DJ |
546 | for (argc = 1; program_args[argc]; argc++) |
547 | argslen += strlen (program_args[argc]) + 1; | |
548 | args = alloca (argslen); | |
ed50f18f | 549 | args[0] = '\0'; |
b80864fb DJ |
550 | for (argc = 1; program_args[argc]; argc++) |
551 | { | |
552 | /* FIXME: Can we do better about quoting? How does Cygwin | |
1b3f6016 | 553 | handle this? */ |
b80864fb DJ |
554 | strcat (args, " "); |
555 | strcat (args, program_args[argc]); | |
556 | } | |
ed50f18f | 557 | OUTMSG2 (("Command line is \"%s\"\n", args)); |
b80864fb | 558 | |
ed50f18f | 559 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 560 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 561 | #endif |
b80864fb | 562 | |
aec18585 PA |
563 | ret = create_process (program, args, flags, &pi); |
564 | err = GetLastError (); | |
565 | if (!ret && err == ERROR_FILE_NOT_FOUND) | |
566 | { | |
567 | char *exename = alloca (strlen (program) + 5); | |
568 | strcat (strcpy (exename, program), ".exe"); | |
569 | ret = create_process (exename, args, flags, &pi); | |
570 | err = GetLastError (); | |
571 | } | |
b80864fb DJ |
572 | |
573 | #ifndef USE_WIN32API | |
574 | if (orig_path) | |
575 | setenv ("PATH", orig_path, 1); | |
576 | #endif | |
577 | ||
578 | if (!ret) | |
579 | { | |
ed50f18f PA |
580 | error ("Error creating process \"%s%s\", (error %d): %s\n", |
581 | program, args, (int) err, strwinerror (err)); | |
b80864fb DJ |
582 | } |
583 | else | |
584 | { | |
585 | OUTMSG2 (("Process created: %s\n", (char *) args)); | |
586 | } | |
587 | ||
ed50f18f PA |
588 | #ifndef _WIN32_WCE |
589 | /* On Windows CE this handle can't be closed. The OS reuses | |
590 | it in the debug events, while the 9x/NT versions of Windows | |
591 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 592 | CloseHandle (pi.hThread); |
ed50f18f | 593 | #endif |
b80864fb | 594 | |
95954743 | 595 | do_initial_child_stuff (pi.hProcess, pi.dwProcessId, 0); |
b80864fb DJ |
596 | |
597 | return current_process_id; | |
598 | } | |
599 | ||
600 | /* Attach to a running process. | |
601 | PID is the process ID to attach to, specified by the user | |
602 | or a higher layer. */ | |
603 | static int | |
604 | win32_attach (unsigned long pid) | |
605 | { | |
5ca906e6 | 606 | HANDLE h; |
bf914831 | 607 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; |
5ca906e6 | 608 | DWORD err; |
ed50f18f PA |
609 | #ifdef _WIN32_WCE |
610 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
611 | #else | |
612 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
613 | #endif | |
bf914831 | 614 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); |
b80864fb | 615 | |
5ca906e6 PA |
616 | h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
617 | if (h != NULL) | |
1d5315fe | 618 | { |
5ca906e6 PA |
619 | if (DebugActiveProcess (pid)) |
620 | { | |
621 | if (DebugSetProcessKillOnExit != NULL) | |
622 | DebugSetProcessKillOnExit (FALSE); | |
623 | ||
d97903b2 | 624 | /* win32_wait needs to know we're attaching. */ |
1b3f6016 | 625 | attaching = 1; |
95954743 | 626 | do_initial_child_stuff (h, pid, 1); |
5ca906e6 PA |
627 | return 0; |
628 | } | |
629 | ||
630 | CloseHandle (h); | |
b80864fb DJ |
631 | } |
632 | ||
5ca906e6 PA |
633 | err = GetLastError (); |
634 | error ("Attach to process failed (error %d): %s\n", | |
635 | (int) err, strwinerror (err)); | |
b80864fb DJ |
636 | } |
637 | ||
bce7165d PA |
638 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
639 | static void | |
640 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
641 | { | |
642 | #define READ_BUFFER_LEN 1024 | |
643 | CORE_ADDR addr; | |
644 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
645 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
646 | ||
647 | if (nbytes == 0) | |
648 | return; | |
649 | ||
650 | if (nbytes > READ_BUFFER_LEN) | |
651 | nbytes = READ_BUFFER_LEN; | |
652 | ||
653 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
654 | ||
655 | if (current_event.u.DebugString.fUnicode) | |
656 | { | |
657 | /* The event tells us how many bytes, not chars, even | |
1b3f6016 | 658 | in Unicode. */ |
bce7165d PA |
659 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; |
660 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
661 | return; | |
662 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
663 | } | |
664 | else | |
665 | { | |
666 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
667 | return; | |
668 | } | |
669 | ||
670 | if (strncmp (s, "cYg", 3) != 0) | |
45e2715e PA |
671 | { |
672 | if (!server_waiting) | |
673 | { | |
674 | OUTMSG2(("%s", s)); | |
675 | return; | |
676 | } | |
677 | ||
678 | monitor_output (s); | |
679 | } | |
bce7165d PA |
680 | #undef READ_BUFFER_LEN |
681 | } | |
682 | ||
5ac588cf PA |
683 | static void |
684 | win32_clear_inferiors (void) | |
685 | { | |
686 | if (current_process_handle != NULL) | |
687 | CloseHandle (current_process_handle); | |
688 | ||
689 | for_each_inferior (&all_threads, delete_thread_info); | |
690 | clear_inferiors (); | |
691 | } | |
692 | ||
b80864fb | 693 | /* Kill all inferiors. */ |
95954743 PA |
694 | static int |
695 | win32_kill (int pid) | |
b80864fb | 696 | { |
95954743 PA |
697 | struct process_info *process; |
698 | ||
9d606399 | 699 | if (current_process_handle == NULL) |
95954743 | 700 | return -1; |
9d606399 | 701 | |
b80864fb DJ |
702 | TerminateProcess (current_process_handle, 0); |
703 | for (;;) | |
704 | { | |
705 | if (!child_continue (DBG_CONTINUE, -1)) | |
706 | break; | |
707 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
708 | break; | |
709 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
710 | break; | |
bce7165d PA |
711 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
712 | { | |
1b3f6016 | 713 | struct target_waitstatus our_status = { 0 }; |
bce7165d | 714 | handle_output_debug_string (&our_status); |
1b3f6016 | 715 | } |
b80864fb | 716 | } |
ed50f18f | 717 | |
5ac588cf | 718 | win32_clear_inferiors (); |
95954743 PA |
719 | |
720 | process = find_process_pid (pid); | |
721 | remove_process (process); | |
722 | return 0; | |
b80864fb DJ |
723 | } |
724 | ||
95954743 | 725 | /* Detach from inferior PID. */ |
444d6139 | 726 | static int |
95954743 | 727 | win32_detach (int pid) |
b80864fb | 728 | { |
95954743 | 729 | struct process_info *process; |
bf914831 PA |
730 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
731 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
732 | #ifdef _WIN32_WCE |
733 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
734 | #else | |
735 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
736 | #endif | |
bf914831 PA |
737 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
738 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 739 | |
444d6139 PA |
740 | if (DebugSetProcessKillOnExit == NULL |
741 | || DebugActiveProcessStop == NULL) | |
742 | return -1; | |
b80864fb | 743 | |
444d6139 PA |
744 | { |
745 | struct thread_resume resume; | |
95954743 | 746 | resume.thread = minus_one_ptid; |
bd99dc85 | 747 | resume.kind = resume_continue; |
444d6139 | 748 | resume.sig = 0; |
2bd7c093 | 749 | win32_resume (&resume, 1); |
444d6139 PA |
750 | } |
751 | ||
752 | if (!DebugActiveProcessStop (current_process_id)) | |
5ac588cf PA |
753 | return -1; |
754 | ||
444d6139 | 755 | DebugSetProcessKillOnExit (FALSE); |
95954743 PA |
756 | process = find_process_pid (pid); |
757 | remove_process (process); | |
444d6139 | 758 | |
5ac588cf | 759 | win32_clear_inferiors (); |
444d6139 PA |
760 | return 0; |
761 | } | |
762 | ||
763 | /* Wait for inferiors to end. */ | |
764 | static void | |
95954743 | 765 | win32_join (int pid) |
444d6139 | 766 | { |
95954743 | 767 | HANDLE h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
5ac588cf PA |
768 | if (h != NULL) |
769 | { | |
770 | WaitForSingleObject (h, INFINITE); | |
771 | CloseHandle (h); | |
772 | } | |
b80864fb DJ |
773 | } |
774 | ||
775 | /* Return 1 iff the thread with thread ID TID is alive. */ | |
776 | static int | |
95954743 | 777 | win32_thread_alive (ptid_t ptid) |
b80864fb DJ |
778 | { |
779 | int res; | |
780 | ||
781 | /* Our thread list is reliable; don't bother to poll target | |
782 | threads. */ | |
95954743 | 783 | if (find_inferior_id (&all_threads, ptid) != NULL) |
b80864fb DJ |
784 | res = 1; |
785 | else | |
786 | res = 0; | |
787 | return res; | |
788 | } | |
789 | ||
790 | /* Resume the inferior process. RESUME_INFO describes how we want | |
791 | to resume. */ | |
792 | static void | |
2bd7c093 | 793 | win32_resume (struct thread_resume *resume_info, size_t n) |
b80864fb DJ |
794 | { |
795 | DWORD tid; | |
796 | enum target_signal sig; | |
797 | int step; | |
41093d81 | 798 | win32_thread_info *th; |
b80864fb | 799 | DWORD continue_status = DBG_CONTINUE; |
95954743 | 800 | ptid_t ptid; |
b80864fb DJ |
801 | |
802 | /* This handles the very limited set of resume packets that GDB can | |
803 | currently produce. */ | |
804 | ||
95954743 | 805 | if (n == 1 && ptid_equal (resume_info[0].thread, minus_one_ptid)) |
b80864fb | 806 | tid = -1; |
2bd7c093 | 807 | else if (n > 1) |
b80864fb DJ |
808 | tid = -1; |
809 | else | |
810 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
811 | the Windows resume code do the right thing for thread switching. */ | |
812 | tid = current_event.dwThreadId; | |
813 | ||
95954743 | 814 | if (!ptid_equal (resume_info[0].thread, minus_one_ptid)) |
b80864fb DJ |
815 | { |
816 | sig = resume_info[0].sig; | |
bd99dc85 | 817 | step = resume_info[0].kind == resume_step; |
b80864fb DJ |
818 | } |
819 | else | |
820 | { | |
821 | sig = 0; | |
822 | step = 0; | |
823 | } | |
824 | ||
825 | if (sig != TARGET_SIGNAL_0) | |
826 | { | |
827 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
828 | { | |
829 | OUTMSG (("Cannot continue with signal %d here.\n", sig)); | |
830 | } | |
831 | else if (sig == last_sig) | |
832 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
833 | else | |
834 | OUTMSG (("Can only continue with recieved signal %d.\n", last_sig)); | |
835 | } | |
836 | ||
837 | last_sig = TARGET_SIGNAL_0; | |
838 | ||
839 | /* Get context for the currently selected thread. */ | |
95954743 PA |
840 | ptid = debug_event_ptid (¤t_event); |
841 | th = thread_rec (ptid, FALSE); | |
b80864fb DJ |
842 | if (th) |
843 | { | |
844 | if (th->context.ContextFlags) | |
845 | { | |
b80864fb DJ |
846 | /* Move register values from the inferior into the thread |
847 | context structure. */ | |
848 | regcache_invalidate (); | |
849 | ||
850 | if (step) | |
ed50f18f PA |
851 | { |
852 | if (the_low_target.single_step != NULL) | |
853 | (*the_low_target.single_step) (th); | |
854 | else | |
855 | error ("Single stepping is not supported " | |
856 | "in this configuration.\n"); | |
857 | } | |
34b34921 | 858 | |
9c6c8194 | 859 | win32_set_thread_context (th); |
b80864fb DJ |
860 | th->context.ContextFlags = 0; |
861 | } | |
862 | } | |
863 | ||
864 | /* Allow continuing with the same signal that interrupted us. | |
865 | Otherwise complain. */ | |
866 | ||
867 | child_continue (continue_status, tid); | |
868 | } | |
869 | ||
255e7678 DJ |
870 | static void |
871 | win32_add_one_solib (const char *name, CORE_ADDR load_addr) | |
872 | { | |
873 | char buf[MAX_PATH + 1]; | |
874 | char buf2[MAX_PATH + 1]; | |
875 | ||
876 | #ifdef _WIN32_WCE | |
877 | WIN32_FIND_DATA w32_fd; | |
878 | WCHAR wname[MAX_PATH + 1]; | |
879 | mbstowcs (wname, name, MAX_PATH); | |
880 | HANDLE h = FindFirstFile (wname, &w32_fd); | |
881 | #else | |
882 | WIN32_FIND_DATAA w32_fd; | |
883 | HANDLE h = FindFirstFileA (name, &w32_fd); | |
884 | #endif | |
885 | ||
886 | if (h == INVALID_HANDLE_VALUE) | |
887 | strcpy (buf, name); | |
888 | else | |
889 | { | |
890 | FindClose (h); | |
891 | strcpy (buf, name); | |
892 | #ifndef _WIN32_WCE | |
893 | { | |
894 | char cwd[MAX_PATH + 1]; | |
895 | char *p; | |
896 | if (GetCurrentDirectoryA (MAX_PATH + 1, cwd)) | |
897 | { | |
898 | p = strrchr (buf, '\\'); | |
899 | if (p) | |
900 | p[1] = '\0'; | |
901 | SetCurrentDirectoryA (buf); | |
902 | GetFullPathNameA (w32_fd.cFileName, MAX_PATH, buf, &p); | |
903 | SetCurrentDirectoryA (cwd); | |
904 | } | |
905 | } | |
906 | #endif | |
907 | } | |
908 | ||
cf6e3471 PA |
909 | #ifndef _WIN32_WCE |
910 | if (strcasecmp (buf, "ntdll.dll") == 0) | |
911 | { | |
912 | GetSystemDirectoryA (buf, sizeof (buf)); | |
913 | strcat (buf, "\\ntdll.dll"); | |
914 | } | |
915 | #endif | |
916 | ||
255e7678 DJ |
917 | #ifdef __CYGWIN__ |
918 | cygwin_conv_to_posix_path (buf, buf2); | |
919 | #else | |
920 | strcpy (buf2, buf); | |
921 | #endif | |
922 | ||
923 | loaded_dll (buf2, load_addr); | |
924 | } | |
925 | ||
926 | static char * | |
927 | get_image_name (HANDLE h, void *address, int unicode) | |
928 | { | |
929 | static char buf[(2 * MAX_PATH) + 1]; | |
930 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
931 | char *address_ptr; | |
932 | int len = 0; | |
933 | char b[2]; | |
934 | DWORD done; | |
935 | ||
936 | /* Attempt to read the name of the dll that was detected. | |
937 | This is documented to work only when actively debugging | |
938 | a program. It will not work for attached processes. */ | |
939 | if (address == NULL) | |
940 | return NULL; | |
941 | ||
942 | #ifdef _WIN32_WCE | |
943 | /* Windows CE reports the address of the image name, | |
944 | instead of an address of a pointer into the image name. */ | |
945 | address_ptr = address; | |
946 | #else | |
947 | /* See if we could read the address of a string, and that the | |
948 | address isn't null. */ | |
949 | if (!ReadProcessMemory (h, address, &address_ptr, | |
950 | sizeof (address_ptr), &done) | |
951 | || done != sizeof (address_ptr) | |
952 | || !address_ptr) | |
953 | return NULL; | |
954 | #endif | |
955 | ||
956 | /* Find the length of the string */ | |
957 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) | |
958 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
959 | continue; | |
960 | ||
961 | if (!unicode) | |
962 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
963 | else | |
964 | { | |
965 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
966 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
967 | &done); | |
968 | ||
969 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
970 | } | |
971 | ||
972 | return buf; | |
973 | } | |
974 | ||
975 | typedef BOOL (WINAPI *winapi_EnumProcessModules) (HANDLE, HMODULE *, | |
976 | DWORD, LPDWORD); | |
977 | typedef BOOL (WINAPI *winapi_GetModuleInformation) (HANDLE, HMODULE, | |
978 | LPMODULEINFO, DWORD); | |
979 | typedef DWORD (WINAPI *winapi_GetModuleFileNameExA) (HANDLE, HMODULE, | |
980 | LPSTR, DWORD); | |
981 | ||
982 | static winapi_EnumProcessModules win32_EnumProcessModules; | |
983 | static winapi_GetModuleInformation win32_GetModuleInformation; | |
984 | static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA; | |
985 | ||
986 | static BOOL | |
987 | load_psapi (void) | |
988 | { | |
989 | static int psapi_loaded = 0; | |
990 | static HMODULE dll = NULL; | |
991 | ||
992 | if (!psapi_loaded) | |
993 | { | |
994 | psapi_loaded = 1; | |
995 | dll = LoadLibrary (TEXT("psapi.dll")); | |
996 | if (!dll) | |
997 | return FALSE; | |
998 | win32_EnumProcessModules = | |
999 | GETPROCADDRESS (dll, EnumProcessModules); | |
1000 | win32_GetModuleInformation = | |
1001 | GETPROCADDRESS (dll, GetModuleInformation); | |
1002 | win32_GetModuleFileNameExA = | |
1003 | GETPROCADDRESS (dll, GetModuleFileNameExA); | |
1004 | } | |
1005 | ||
1006 | return (win32_EnumProcessModules != NULL | |
1007 | && win32_GetModuleInformation != NULL | |
1008 | && win32_GetModuleFileNameExA != NULL); | |
1009 | } | |
1010 | ||
1011 | static int | |
1012 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
1013 | { | |
1014 | DWORD len; | |
1015 | MODULEINFO mi; | |
1016 | size_t i; | |
1017 | HMODULE dh_buf[1]; | |
1018 | HMODULE *DllHandle = dh_buf; | |
1019 | DWORD cbNeeded; | |
1020 | BOOL ok; | |
1021 | ||
1022 | if (!load_psapi ()) | |
1023 | goto failed; | |
1024 | ||
1025 | cbNeeded = 0; | |
1026 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1027 | DllHandle, | |
1028 | sizeof (HMODULE), | |
1029 | &cbNeeded); | |
1030 | ||
1031 | if (!ok || !cbNeeded) | |
1032 | goto failed; | |
1033 | ||
1034 | DllHandle = (HMODULE *) alloca (cbNeeded); | |
1035 | if (!DllHandle) | |
1036 | goto failed; | |
1037 | ||
1038 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1039 | DllHandle, | |
1040 | cbNeeded, | |
1041 | &cbNeeded); | |
1042 | if (!ok) | |
1043 | goto failed; | |
1044 | ||
1045 | for (i = 0; i < ((size_t) cbNeeded / sizeof (HMODULE)); i++) | |
1046 | { | |
1047 | if (!(*win32_GetModuleInformation) (current_process_handle, | |
1048 | DllHandle[i], | |
1049 | &mi, | |
1050 | sizeof (mi))) | |
1051 | { | |
1052 | DWORD err = GetLastError (); | |
1053 | error ("Can't get module info: (error %d): %s\n", | |
1054 | (int) err, strwinerror (err)); | |
1055 | } | |
1056 | ||
1057 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
1058 | { | |
1059 | len = (*win32_GetModuleFileNameExA) (current_process_handle, | |
1060 | DllHandle[i], | |
1061 | dll_name_ret, | |
1062 | MAX_PATH); | |
1063 | if (len == 0) | |
1064 | { | |
1065 | DWORD err = GetLastError (); | |
1066 | error ("Error getting dll name: (error %d): %s\n", | |
1067 | (int) err, strwinerror (err)); | |
1068 | } | |
1069 | return 1; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | failed: | |
1074 | dll_name_ret[0] = '\0'; | |
1075 | return 0; | |
1076 | } | |
1077 | ||
1078 | typedef HANDLE (WINAPI *winapi_CreateToolhelp32Snapshot) (DWORD, DWORD); | |
1079 | typedef BOOL (WINAPI *winapi_Module32First) (HANDLE, LPMODULEENTRY32); | |
1080 | typedef BOOL (WINAPI *winapi_Module32Next) (HANDLE, LPMODULEENTRY32); | |
1081 | ||
1082 | static winapi_CreateToolhelp32Snapshot win32_CreateToolhelp32Snapshot; | |
1083 | static winapi_Module32First win32_Module32First; | |
1084 | static winapi_Module32Next win32_Module32Next; | |
6b3d9b83 PA |
1085 | #ifdef _WIN32_WCE |
1086 | typedef BOOL (WINAPI *winapi_CloseToolhelp32Snapshot) (HANDLE); | |
1087 | static winapi_CloseToolhelp32Snapshot win32_CloseToolhelp32Snapshot; | |
1088 | #endif | |
255e7678 DJ |
1089 | |
1090 | static BOOL | |
1091 | load_toolhelp (void) | |
1092 | { | |
1093 | static int toolhelp_loaded = 0; | |
1094 | static HMODULE dll = NULL; | |
1095 | ||
1096 | if (!toolhelp_loaded) | |
1097 | { | |
1098 | toolhelp_loaded = 1; | |
1099 | #ifndef _WIN32_WCE | |
1100 | dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1101 | #else | |
6b3d9b83 | 1102 | dll = LoadLibrary (L"TOOLHELP.DLL"); |
255e7678 DJ |
1103 | #endif |
1104 | if (!dll) | |
1105 | return FALSE; | |
1106 | ||
1107 | win32_CreateToolhelp32Snapshot = | |
1108 | GETPROCADDRESS (dll, CreateToolhelp32Snapshot); | |
1109 | win32_Module32First = GETPROCADDRESS (dll, Module32First); | |
1110 | win32_Module32Next = GETPROCADDRESS (dll, Module32Next); | |
6b3d9b83 PA |
1111 | #ifdef _WIN32_WCE |
1112 | win32_CloseToolhelp32Snapshot = | |
1113 | GETPROCADDRESS (dll, CloseToolhelp32Snapshot); | |
1114 | #endif | |
255e7678 DJ |
1115 | } |
1116 | ||
1117 | return (win32_CreateToolhelp32Snapshot != NULL | |
1118 | && win32_Module32First != NULL | |
6b3d9b83 PA |
1119 | && win32_Module32Next != NULL |
1120 | #ifdef _WIN32_WCE | |
1121 | && win32_CloseToolhelp32Snapshot != NULL | |
1122 | #endif | |
1123 | ); | |
255e7678 DJ |
1124 | } |
1125 | ||
1126 | static int | |
1127 | toolhelp_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
1128 | { | |
1129 | HANDLE snapshot_module; | |
1130 | MODULEENTRY32 modEntry = { sizeof (MODULEENTRY32) }; | |
6b3d9b83 | 1131 | int found = 0; |
255e7678 DJ |
1132 | |
1133 | if (!load_toolhelp ()) | |
1134 | return 0; | |
1135 | ||
1136 | snapshot_module = win32_CreateToolhelp32Snapshot (TH32CS_SNAPMODULE, | |
1137 | current_event.dwProcessId); | |
1138 | if (snapshot_module == INVALID_HANDLE_VALUE) | |
1139 | return 0; | |
1140 | ||
1141 | /* Ignore the first module, which is the exe. */ | |
6b3d9b83 PA |
1142 | if (win32_Module32First (snapshot_module, &modEntry)) |
1143 | while (win32_Module32Next (snapshot_module, &modEntry)) | |
1144 | if ((DWORD) modEntry.modBaseAddr == BaseAddress) | |
1145 | { | |
255e7678 | 1146 | #ifdef UNICODE |
6b3d9b83 | 1147 | wcstombs (dll_name_ret, modEntry.szExePath, MAX_PATH + 1); |
255e7678 | 1148 | #else |
6b3d9b83 | 1149 | strcpy (dll_name_ret, modEntry.szExePath); |
255e7678 | 1150 | #endif |
6b3d9b83 PA |
1151 | found = 1; |
1152 | break; | |
1153 | } | |
255e7678 | 1154 | |
6b3d9b83 PA |
1155 | #ifdef _WIN32_WCE |
1156 | win32_CloseToolhelp32Snapshot (snapshot_module); | |
1157 | #else | |
255e7678 | 1158 | CloseHandle (snapshot_module); |
6b3d9b83 PA |
1159 | #endif |
1160 | return found; | |
255e7678 DJ |
1161 | } |
1162 | ||
1163 | static void | |
1164 | handle_load_dll (void) | |
1165 | { | |
1166 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
1167 | char dll_buf[MAX_PATH + 1]; | |
1168 | char *dll_name = NULL; | |
1169 | DWORD load_addr; | |
1170 | ||
1171 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; | |
1172 | ||
34d86ddd PA |
1173 | /* Windows does not report the image name of the dlls in the debug |
1174 | event on attaches. We resort to iterating over the list of | |
1175 | loaded dlls looking for a match by image base. */ | |
1176 | if (!psapi_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf)) | |
1177 | { | |
1178 | if (!server_waiting) | |
1179 | /* On some versions of Windows and Windows CE, we can't create | |
1180 | toolhelp snapshots while the inferior is stopped in a | |
1181 | LOAD_DLL_DEBUG_EVENT due to a dll load, but we can while | |
1182 | Windows is reporting the already loaded dlls. */ | |
1183 | toolhelp_get_dll_name ((DWORD) event->lpBaseOfDll, dll_buf); | |
1184 | } | |
255e7678 DJ |
1185 | |
1186 | dll_name = dll_buf; | |
1187 | ||
1188 | if (*dll_name == '\0') | |
1189 | dll_name = get_image_name (current_process_handle, | |
1190 | event->lpImageName, event->fUnicode); | |
1191 | if (!dll_name) | |
1192 | return; | |
1193 | ||
1194 | /* The symbols in a dll are offset by 0x1000, which is the | |
1195 | the offset from 0 of the first byte in an image - because | |
1196 | of the file header and the section alignment. */ | |
1197 | ||
1198 | load_addr = (DWORD) event->lpBaseOfDll + 0x1000; | |
1199 | win32_add_one_solib (dll_name, load_addr); | |
1200 | } | |
1201 | ||
1202 | static void | |
1203 | handle_unload_dll (void) | |
1204 | { | |
1205 | CORE_ADDR load_addr = | |
1206 | (CORE_ADDR) (DWORD) current_event.u.UnloadDll.lpBaseOfDll; | |
1207 | load_addr += 0x1000; | |
1208 | unloaded_dll (NULL, load_addr); | |
1209 | } | |
1210 | ||
34b34921 | 1211 | static void |
b80864fb DJ |
1212 | handle_exception (struct target_waitstatus *ourstatus) |
1213 | { | |
b80864fb DJ |
1214 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
1215 | ||
1216 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1217 | ||
b80864fb DJ |
1218 | switch (code) |
1219 | { | |
1220 | case EXCEPTION_ACCESS_VIOLATION: | |
1221 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
1222 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1223 | break; | |
1224 | case STATUS_STACK_OVERFLOW: | |
1225 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
1226 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1227 | break; | |
1228 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1229 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
1230 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1231 | break; | |
1232 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1233 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
1234 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1235 | break; | |
1236 | case STATUS_FLOAT_INEXACT_RESULT: | |
1237 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
1238 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1239 | break; | |
1240 | case STATUS_FLOAT_INVALID_OPERATION: | |
1241 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
1242 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1243 | break; | |
1244 | case STATUS_FLOAT_OVERFLOW: | |
1245 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
1246 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1247 | break; | |
1248 | case STATUS_FLOAT_STACK_CHECK: | |
1249 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
1250 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1251 | break; | |
1252 | case STATUS_FLOAT_UNDERFLOW: | |
1253 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
1254 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1255 | break; | |
1256 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
1257 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
1258 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1259 | break; | |
1260 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
1261 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
1262 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1263 | break; | |
1264 | case STATUS_INTEGER_OVERFLOW: | |
1265 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
1266 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1267 | break; | |
1268 | case EXCEPTION_BREAKPOINT: | |
1269 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
1270 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
ed50f18f PA |
1271 | #ifdef _WIN32_WCE |
1272 | /* Remove the initial breakpoint. */ | |
1273 | check_breakpoints ((CORE_ADDR) (long) current_event | |
1b3f6016 | 1274 | .u.Exception.ExceptionRecord.ExceptionAddress); |
ed50f18f | 1275 | #endif |
b80864fb DJ |
1276 | break; |
1277 | case DBG_CONTROL_C: | |
1278 | OUTMSG2 (("DBG_CONTROL_C")); | |
1279 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1280 | break; | |
1281 | case DBG_CONTROL_BREAK: | |
1282 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
1283 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1284 | break; | |
1285 | case EXCEPTION_SINGLE_STEP: | |
1286 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
1287 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
1288 | break; | |
1289 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
1290 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
1291 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1292 | break; | |
1293 | case EXCEPTION_PRIV_INSTRUCTION: | |
1294 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
1295 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1296 | break; | |
1297 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1298 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
1299 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1300 | break; | |
1301 | default: | |
1302 | if (current_event.u.Exception.dwFirstChance) | |
34b34921 PA |
1303 | { |
1304 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1305 | return; | |
1306 | } | |
b80864fb DJ |
1307 | OUTMSG2 (("gdbserver: unknown target exception 0x%08lx at 0x%08lx", |
1308 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1309 | (DWORD) current_event.u.Exception.ExceptionRecord. | |
1310 | ExceptionAddress)); | |
1311 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
1312 | break; | |
1313 | } | |
1314 | OUTMSG2 (("\n")); | |
1315 | last_sig = ourstatus->value.sig; | |
b80864fb DJ |
1316 | } |
1317 | ||
4d5d1aaa | 1318 | |
34b34921 | 1319 | static void |
4d5d1aaa PA |
1320 | suspend_one_thread (struct inferior_list_entry *entry) |
1321 | { | |
1322 | struct thread_info *thread = (struct thread_info *) entry; | |
1323 | win32_thread_info *th = inferior_target_data (thread); | |
1324 | ||
1325 | if (!th->suspended) | |
1326 | { | |
1327 | if (SuspendThread (th->h) == (DWORD) -1) | |
1328 | { | |
1329 | DWORD err = GetLastError (); | |
1330 | OUTMSG (("warning: SuspendThread failed in suspend_one_thread, " | |
1331 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
1332 | } | |
1333 | else | |
1334 | th->suspended = 1; | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | static void | |
1339 | fake_breakpoint_event (void) | |
b80864fb | 1340 | { |
4d5d1aaa | 1341 | OUTMSG2(("fake_breakpoint_event\n")); |
b80864fb | 1342 | |
4d5d1aaa PA |
1343 | faked_breakpoint = 1; |
1344 | ||
1345 | memset (¤t_event, 0, sizeof (current_event)); | |
1346 | current_event.dwThreadId = main_thread_id; | |
1347 | current_event.dwDebugEventCode = EXCEPTION_DEBUG_EVENT; | |
1348 | current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1349 | = EXCEPTION_BREAKPOINT; | |
1350 | ||
1351 | for_each_inferior (&all_threads, suspend_one_thread); | |
1352 | } | |
1353 | ||
b65d95c5 DJ |
1354 | #ifdef _WIN32_WCE |
1355 | static int | |
1356 | auto_delete_breakpoint (CORE_ADDR stop_pc) | |
1357 | { | |
1358 | return 1; | |
1359 | } | |
1360 | #endif | |
1361 | ||
4d5d1aaa PA |
1362 | /* Get the next event from the child. */ |
1363 | ||
1364 | static int | |
1365 | get_child_debug_event (struct target_waitstatus *ourstatus) | |
1366 | { | |
95954743 PA |
1367 | ptid_t ptid; |
1368 | ||
b80864fb DJ |
1369 | last_sig = TARGET_SIGNAL_0; |
1370 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1371 | ||
4d5d1aaa PA |
1372 | /* Check if GDB sent us an interrupt request. */ |
1373 | check_remote_input_interrupt_request (); | |
1374 | ||
1375 | if (soft_interrupt_requested) | |
1376 | { | |
1377 | soft_interrupt_requested = 0; | |
1378 | fake_breakpoint_event (); | |
1379 | goto gotevent; | |
1380 | } | |
1381 | ||
d97903b2 PA |
1382 | #ifndef _WIN32_WCE |
1383 | attaching = 0; | |
1384 | #else | |
1385 | if (attaching) | |
1386 | { | |
1387 | /* WinCE doesn't set an initial breakpoint automatically. To | |
1b3f6016 PA |
1388 | stop the inferior, we flush all currently pending debug |
1389 | events -- the thread list and the dll list are always | |
1390 | reported immediatelly without delay, then, we suspend all | |
1391 | threads and pretend we saw a trap at the current PC of the | |
1392 | main thread. | |
1393 | ||
1394 | Contrary to desktop Windows, Windows CE *does* report the dll | |
1395 | names on LOAD_DLL_DEBUG_EVENTs resulting from a | |
1396 | DebugActiveProcess call. This limits the way we can detect | |
1397 | if all the dlls have already been reported. If we get a real | |
1398 | debug event before leaving attaching, the worst that will | |
1399 | happen is the user will see a spurious breakpoint. */ | |
d97903b2 PA |
1400 | |
1401 | current_event.dwDebugEventCode = 0; | |
1402 | if (!WaitForDebugEvent (¤t_event, 0)) | |
1b3f6016 PA |
1403 | { |
1404 | OUTMSG2(("no attach events left\n")); | |
1405 | fake_breakpoint_event (); | |
1406 | attaching = 0; | |
1407 | } | |
d97903b2 | 1408 | else |
1b3f6016 | 1409 | OUTMSG2(("got attach event\n")); |
d97903b2 PA |
1410 | } |
1411 | else | |
1412 | #endif | |
1413 | { | |
1414 | /* Keep the wait time low enough for confortable remote | |
1b3f6016 PA |
1415 | interruption, but high enough so gdbserver doesn't become a |
1416 | bottleneck. */ | |
d97903b2 | 1417 | if (!WaitForDebugEvent (¤t_event, 250)) |
912cf4ba PA |
1418 | { |
1419 | DWORD e = GetLastError(); | |
1420 | ||
1421 | if (e == ERROR_PIPE_NOT_CONNECTED) | |
1422 | { | |
1423 | /* This will happen if the loader fails to succesfully | |
1424 | load the application, e.g., if the main executable | |
1425 | tries to pull in a non-existing export from a | |
1426 | DLL. */ | |
1427 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1428 | ourstatus->value.integer = 1; | |
1429 | return 1; | |
1430 | } | |
1431 | ||
1432 | return 0; | |
1433 | } | |
d97903b2 | 1434 | } |
4d5d1aaa PA |
1435 | |
1436 | gotevent: | |
b80864fb | 1437 | |
95954743 | 1438 | ptid = debug_event_ptid (¤t_event); |
b80864fb | 1439 | current_inferior = |
95954743 | 1440 | (struct thread_info *) find_inferior_id (&all_threads, ptid); |
b80864fb | 1441 | |
34b34921 | 1442 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
1443 | { |
1444 | case CREATE_THREAD_DEBUG_EVENT: | |
1445 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
1446 | "for pid=%d tid=%x)\n", | |
1447 | (unsigned) current_event.dwProcessId, | |
1448 | (unsigned) current_event.dwThreadId)); | |
1449 | ||
1450 | /* Record the existence of this thread. */ | |
95954743 PA |
1451 | child_add_thread (current_event.dwProcessId, |
1452 | current_event.dwThreadId, | |
1453 | current_event.u.CreateThread.hThread); | |
b80864fb DJ |
1454 | break; |
1455 | ||
1456 | case EXIT_THREAD_DEBUG_EVENT: | |
1457 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
1458 | "for pid=%d tid=%x\n", | |
1459 | (unsigned) current_event.dwProcessId, | |
1460 | (unsigned) current_event.dwThreadId)); | |
95954743 PA |
1461 | child_delete_thread (current_event.dwProcessId, |
1462 | current_event.dwThreadId); | |
b80864fb DJ |
1463 | break; |
1464 | ||
1465 | case CREATE_PROCESS_DEBUG_EVENT: | |
1466 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
1467 | "for pid=%d tid=%x\n", | |
1468 | (unsigned) current_event.dwProcessId, | |
1469 | (unsigned) current_event.dwThreadId)); | |
1470 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
1471 | ||
1472 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1473 | main_thread_id = current_event.dwThreadId; | |
1474 | ||
1475 | ourstatus->kind = TARGET_WAITKIND_EXECD; | |
1476 | ourstatus->value.execd_pathname = "Main executable"; | |
1477 | ||
1478 | /* Add the main thread. */ | |
95954743 PA |
1479 | child_add_thread (current_event.dwProcessId, |
1480 | main_thread_id, | |
34b34921 | 1481 | current_event.u.CreateProcessInfo.hThread); |
b80864fb | 1482 | |
95954743 | 1483 | ourstatus->value.related_pid = debug_event_ptid (¤t_event); |
ed50f18f | 1484 | #ifdef _WIN32_WCE |
d97903b2 PA |
1485 | if (!attaching) |
1486 | { | |
1487 | /* Windows CE doesn't set the initial breakpoint | |
1488 | automatically like the desktop versions of Windows do. | |
1489 | We add it explicitly here. It will be removed as soon as | |
1490 | it is hit. */ | |
1491 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
1492 | .CreateProcessInfo.lpStartAddress, | |
b65d95c5 | 1493 | auto_delete_breakpoint); |
d97903b2 | 1494 | } |
ed50f18f | 1495 | #endif |
b80864fb DJ |
1496 | break; |
1497 | ||
1498 | case EXIT_PROCESS_DEBUG_EVENT: | |
1499 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
1500 | "for pid=%d tid=%x\n", | |
1501 | (unsigned) current_event.dwProcessId, | |
1502 | (unsigned) current_event.dwThreadId)); | |
1503 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1504 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
18aae699 | 1505 | child_continue (DBG_CONTINUE, -1); |
b80864fb | 1506 | CloseHandle (current_process_handle); |
9d606399 | 1507 | current_process_handle = NULL; |
b80864fb DJ |
1508 | break; |
1509 | ||
1510 | case LOAD_DLL_DEBUG_EVENT: | |
1511 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
1512 | "for pid=%d tid=%x\n", | |
1513 | (unsigned) current_event.dwProcessId, | |
1514 | (unsigned) current_event.dwThreadId)); | |
1515 | CloseHandle (current_event.u.LoadDll.hFile); | |
255e7678 | 1516 | handle_load_dll (); |
b80864fb DJ |
1517 | |
1518 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
255e7678 | 1519 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
b80864fb DJ |
1520 | break; |
1521 | ||
1522 | case UNLOAD_DLL_DEBUG_EVENT: | |
1523 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
1524 | "for pid=%d tid=%x\n", | |
1525 | (unsigned) current_event.dwProcessId, | |
1526 | (unsigned) current_event.dwThreadId)); | |
255e7678 DJ |
1527 | handle_unload_dll (); |
1528 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
1529 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
b80864fb DJ |
1530 | break; |
1531 | ||
1532 | case EXCEPTION_DEBUG_EVENT: | |
1533 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
1534 | "for pid=%d tid=%x\n", | |
1535 | (unsigned) current_event.dwProcessId, | |
1536 | (unsigned) current_event.dwThreadId)); | |
34b34921 | 1537 | handle_exception (ourstatus); |
b80864fb DJ |
1538 | break; |
1539 | ||
1540 | case OUTPUT_DEBUG_STRING_EVENT: | |
1541 | /* A message from the kernel (or Cygwin). */ | |
1542 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
1543 | "for pid=%d tid=%x\n", | |
1544 | (unsigned) current_event.dwProcessId, | |
1545 | (unsigned) current_event.dwThreadId)); | |
bce7165d | 1546 | handle_output_debug_string (ourstatus); |
b80864fb DJ |
1547 | break; |
1548 | ||
1549 | default: | |
1550 | OUTMSG2 (("gdbserver: kernel event unknown " | |
1551 | "for pid=%d tid=%x code=%ld\n", | |
1552 | (unsigned) current_event.dwProcessId, | |
1553 | (unsigned) current_event.dwThreadId, | |
1554 | current_event.dwDebugEventCode)); | |
1555 | break; | |
1556 | } | |
1557 | ||
1558 | current_inferior = | |
95954743 | 1559 | (struct thread_info *) find_inferior_id (&all_threads, ptid); |
4d5d1aaa | 1560 | return 1; |
b80864fb DJ |
1561 | } |
1562 | ||
1563 | /* Wait for the inferior process to change state. | |
1564 | STATUS will be filled in with a response code to send to GDB. | |
1565 | Returns the signal which caused the process to stop. */ | |
95954743 PA |
1566 | static ptid_t |
1567 | win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus, int options) | |
b80864fb | 1568 | { |
95954743 PA |
1569 | struct process_info *process; |
1570 | ||
b80864fb DJ |
1571 | while (1) |
1572 | { | |
5b1c542e | 1573 | if (!get_child_debug_event (ourstatus)) |
4d5d1aaa | 1574 | continue; |
b80864fb | 1575 | |
5b1c542e | 1576 | switch (ourstatus->kind) |
b80864fb | 1577 | { |
34b34921 | 1578 | case TARGET_WAITKIND_EXITED: |
b80864fb | 1579 | OUTMSG2 (("Child exited with retcode = %x\n", |
5b1c542e | 1580 | ourstatus->value.integer)); |
b80864fb | 1581 | |
95954743 PA |
1582 | process = find_process_pid (current_process_id); |
1583 | remove_process (process); | |
5ac588cf | 1584 | win32_clear_inferiors (); |
95954743 | 1585 | return pid_to_ptid (current_event.dwProcessId); |
34b34921 | 1586 | case TARGET_WAITKIND_STOPPED: |
1b3f6016 | 1587 | case TARGET_WAITKIND_LOADED: |
f72f3e60 | 1588 | OUTMSG2 (("Child Stopped with signal = %d \n", |
ed50f18f | 1589 | our_status.value.sig)); |
b80864fb | 1590 | |
b80864fb DJ |
1591 | child_fetch_inferior_registers (-1); |
1592 | ||
5b1c542e | 1593 | if (ourstatus->kind == TARGET_WAITKIND_LOADED |
255e7678 DJ |
1594 | && !server_waiting) |
1595 | { | |
1596 | /* When gdb connects, we want to be stopped at the | |
1597 | initial breakpoint, not in some dll load event. */ | |
1598 | child_continue (DBG_CONTINUE, -1); | |
1599 | break; | |
1600 | } | |
1601 | ||
5b1c542e PA |
1602 | /* We don't expose _LOADED events to gdbserver core. See |
1603 | the `dlls_changed' global. */ | |
1604 | if (ourstatus->kind == TARGET_WAITKIND_LOADED) | |
1605 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1606 | ||
95954743 | 1607 | return debug_event_ptid (¤t_event); |
1b3f6016 | 1608 | default: |
5b1c542e | 1609 | OUTMSG (("Ignoring unknown internal event, %d\n", ourstatus->kind)); |
1b3f6016 PA |
1610 | /* fall-through */ |
1611 | case TARGET_WAITKIND_SPURIOUS: | |
1612 | case TARGET_WAITKIND_EXECD: | |
34b34921 PA |
1613 | /* do nothing, just continue */ |
1614 | child_continue (DBG_CONTINUE, -1); | |
1615 | break; | |
b80864fb | 1616 | } |
b80864fb DJ |
1617 | } |
1618 | } | |
1619 | ||
1620 | /* Fetch registers from the inferior process. | |
1621 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
1622 | static void | |
1623 | win32_fetch_inferior_registers (int regno) | |
1624 | { | |
1625 | child_fetch_inferior_registers (regno); | |
1626 | } | |
1627 | ||
1628 | /* Store registers to the inferior process. | |
1629 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
1630 | static void | |
1631 | win32_store_inferior_registers (int regno) | |
1632 | { | |
1633 | child_store_inferior_registers (regno); | |
1634 | } | |
1635 | ||
1636 | /* Read memory from the inferior process. This should generally be | |
1637 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1638 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
1639 | static int | |
1640 | win32_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) | |
1641 | { | |
ed50f18f | 1642 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1643 | } |
1644 | ||
1645 | /* Write memory to the inferior process. This should generally be | |
1646 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1647 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1648 | Returns 0 on success and errno on failure. */ | |
1649 | static int | |
1650 | win32_write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, | |
1651 | int len) | |
1652 | { | |
1653 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1654 | } | |
1655 | ||
7390519e PA |
1656 | /* Send an interrupt request to the inferior process. */ |
1657 | static void | |
1658 | win32_request_interrupt (void) | |
1659 | { | |
1660 | winapi_DebugBreakProcess DebugBreakProcess; | |
1661 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1662 | ||
1663 | #ifdef _WIN32_WCE | |
1664 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1665 | #else | |
1666 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1667 | #endif | |
1668 | ||
1669 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1670 | ||
1671 | if (GenerateConsoleCtrlEvent != NULL | |
1672 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1673 | return; | |
1674 | ||
1675 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1676 | not a process group id. | |
1677 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1678 | breakpoint exception in the interior process. */ | |
1679 | ||
1680 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1681 | ||
1682 | if (DebugBreakProcess != NULL | |
1683 | && DebugBreakProcess (current_process_handle)) | |
1684 | return; | |
1685 | ||
4d5d1aaa PA |
1686 | /* Last resort, suspend all threads manually. */ |
1687 | soft_interrupt_requested = 1; | |
7390519e PA |
1688 | } |
1689 | ||
59a016f0 PA |
1690 | #ifdef _WIN32_WCE |
1691 | int | |
1692 | win32_error_to_fileio_error (DWORD err) | |
1693 | { | |
1694 | switch (err) | |
1695 | { | |
1696 | case ERROR_BAD_PATHNAME: | |
1697 | case ERROR_FILE_NOT_FOUND: | |
1698 | case ERROR_INVALID_NAME: | |
1699 | case ERROR_PATH_NOT_FOUND: | |
1700 | return FILEIO_ENOENT; | |
1701 | case ERROR_CRC: | |
1702 | case ERROR_IO_DEVICE: | |
1703 | case ERROR_OPEN_FAILED: | |
1704 | return FILEIO_EIO; | |
1705 | case ERROR_INVALID_HANDLE: | |
1706 | return FILEIO_EBADF; | |
1707 | case ERROR_ACCESS_DENIED: | |
1708 | case ERROR_SHARING_VIOLATION: | |
1709 | return FILEIO_EACCES; | |
1710 | case ERROR_NOACCESS: | |
1711 | return FILEIO_EFAULT; | |
1712 | case ERROR_BUSY: | |
1713 | return FILEIO_EBUSY; | |
1714 | case ERROR_ALREADY_EXISTS: | |
1715 | case ERROR_FILE_EXISTS: | |
1716 | return FILEIO_EEXIST; | |
1717 | case ERROR_BAD_DEVICE: | |
1718 | return FILEIO_ENODEV; | |
1719 | case ERROR_DIRECTORY: | |
1720 | return FILEIO_ENOTDIR; | |
1721 | case ERROR_FILENAME_EXCED_RANGE: | |
1722 | case ERROR_INVALID_DATA: | |
1723 | case ERROR_INVALID_PARAMETER: | |
1724 | case ERROR_NEGATIVE_SEEK: | |
1725 | return FILEIO_EINVAL; | |
1726 | case ERROR_TOO_MANY_OPEN_FILES: | |
1727 | return FILEIO_EMFILE; | |
1728 | case ERROR_HANDLE_DISK_FULL: | |
1729 | case ERROR_DISK_FULL: | |
1730 | return FILEIO_ENOSPC; | |
1731 | case ERROR_WRITE_PROTECT: | |
1732 | return FILEIO_EROFS; | |
1733 | case ERROR_NOT_SUPPORTED: | |
1734 | return FILEIO_ENOSYS; | |
1735 | } | |
1736 | ||
1737 | return FILEIO_EUNKNOWN; | |
1738 | } | |
1739 | ||
1740 | static void | |
1741 | wince_hostio_last_error (char *buf) | |
1742 | { | |
1743 | DWORD winerr = GetLastError (); | |
1744 | int fileio_err = win32_error_to_fileio_error (winerr); | |
1745 | sprintf (buf, "F-1,%x", fileio_err); | |
1746 | } | |
1747 | #endif | |
1748 | ||
b80864fb DJ |
1749 | static struct target_ops win32_target_ops = { |
1750 | win32_create_inferior, | |
1751 | win32_attach, | |
1752 | win32_kill, | |
1753 | win32_detach, | |
444d6139 | 1754 | win32_join, |
b80864fb DJ |
1755 | win32_thread_alive, |
1756 | win32_resume, | |
1757 | win32_wait, | |
1758 | win32_fetch_inferior_registers, | |
1759 | win32_store_inferior_registers, | |
1760 | win32_read_inferior_memory, | |
1761 | win32_write_inferior_memory, | |
820f2bda | 1762 | NULL, |
7390519e | 1763 | win32_request_interrupt, |
820f2bda | 1764 | NULL, |
aa5ca48f DE |
1765 | win32_insert_point, |
1766 | win32_remove_point, | |
1767 | win32_stopped_by_watchpoint, | |
1768 | win32_stopped_data_address, | |
820f2bda PA |
1769 | NULL, |
1770 | NULL, | |
59a016f0 PA |
1771 | NULL, |
1772 | #ifdef _WIN32_WCE | |
1773 | wince_hostio_last_error, | |
1774 | #else | |
1775 | hostio_last_error_from_errno, | |
1776 | #endif | |
b80864fb DJ |
1777 | }; |
1778 | ||
1779 | /* Initialize the Win32 backend. */ | |
1780 | void | |
1781 | initialize_low (void) | |
1782 | { | |
1783 | set_target_ops (&win32_target_ops); | |
ed50f18f PA |
1784 | if (the_low_target.breakpoint != NULL) |
1785 | set_breakpoint_data (the_low_target.breakpoint, | |
1786 | the_low_target.breakpoint_len); | |
d05b4ac3 | 1787 | the_low_target.arch_setup (); |
b80864fb | 1788 | } |