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b80864fb | 1 | /* Low level interface to Windows debugging, for gdbserver. |
6aba47ca | 2 | Copyright (C) 2006, 2007 Free Software Foundation, Inc. |
b80864fb DJ |
3 | |
4 | Contributed by Leo Zayas. Based on "win32-nat.c" from GDB. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
21 | Boston, MA 02110-1301, USA. */ | |
22 | ||
23 | #include "server.h" | |
24 | #include "regcache.h" | |
25 | #include "gdb/signals.h" | |
ed50f18f PA |
26 | #include "mem-break.h" |
27 | #include "win32-low.h" | |
b80864fb DJ |
28 | |
29 | #include <windows.h> | |
ed50f18f | 30 | #include <winnt.h> |
b80864fb DJ |
31 | #include <imagehlp.h> |
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. */ | |
69 | static HANDLE current_process_handle = NULL; | |
70 | static DWORD current_process_id = 0; | |
71 | static enum target_signal last_sig = TARGET_SIGNAL_0; | |
72 | ||
73 | /* The current debug event from WaitForDebugEvent. */ | |
74 | static DEBUG_EVENT current_event; | |
75 | ||
ed50f18f | 76 | #define NUM_REGS (the_low_target.num_regs) |
b80864fb | 77 | |
bf914831 PA |
78 | typedef BOOL WINAPI (*winapi_DebugActiveProcessStop) (DWORD dwProcessId); |
79 | typedef BOOL WINAPI (*winapi_DebugSetProcessKillOnExit) (BOOL KillOnExit); | |
7390519e PA |
80 | typedef BOOL WINAPI (*winapi_DebugBreakProcess) (HANDLE); |
81 | typedef BOOL WINAPI (*winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD); | |
b80864fb | 82 | |
b80864fb DJ |
83 | static DWORD main_thread_id = 0; |
84 | ||
34b34921 PA |
85 | static void win32_resume (struct thread_resume *resume_info); |
86 | ||
b80864fb DJ |
87 | /* Get the thread ID from the current selected inferior (the current |
88 | thread). */ | |
89 | static DWORD | |
90 | current_inferior_tid (void) | |
91 | { | |
41093d81 | 92 | win32_thread_info *th = inferior_target_data (current_inferior); |
b80864fb DJ |
93 | return th->tid; |
94 | } | |
95 | ||
96 | /* Find a thread record given a thread id. If GET_CONTEXT is set then | |
97 | also retrieve the context for this thread. */ | |
41093d81 | 98 | static win32_thread_info * |
b80864fb DJ |
99 | thread_rec (DWORD id, int get_context) |
100 | { | |
101 | struct thread_info *thread; | |
41093d81 | 102 | win32_thread_info *th; |
b80864fb DJ |
103 | |
104 | thread = (struct thread_info *) find_inferior_id (&all_threads, id); | |
105 | if (thread == NULL) | |
106 | return NULL; | |
107 | ||
108 | th = inferior_target_data (thread); | |
109 | if (!th->suspend_count && get_context) | |
110 | { | |
34b34921 | 111 | if (id != current_event.dwThreadId) |
b80864fb | 112 | th->suspend_count = SuspendThread (th->h) + 1; |
b80864fb | 113 | |
34b34921 | 114 | (*the_low_target.get_thread_context) (th, ¤t_event); |
b80864fb DJ |
115 | } |
116 | ||
117 | return th; | |
118 | } | |
119 | ||
120 | /* Add a thread to the thread list. */ | |
41093d81 | 121 | static win32_thread_info * |
b80864fb DJ |
122 | child_add_thread (DWORD tid, HANDLE h) |
123 | { | |
41093d81 | 124 | win32_thread_info *th; |
b80864fb DJ |
125 | |
126 | if ((th = thread_rec (tid, FALSE))) | |
127 | return th; | |
128 | ||
41093d81 | 129 | th = (win32_thread_info *) malloc (sizeof (*th)); |
b80864fb DJ |
130 | memset (th, 0, sizeof (*th)); |
131 | th->tid = tid; | |
132 | th->h = h; | |
133 | ||
134 | add_thread (tid, th, (unsigned int) tid); | |
135 | set_inferior_regcache_data ((struct thread_info *) | |
136 | find_inferior_id (&all_threads, tid), | |
137 | new_register_cache ()); | |
138 | ||
34b34921 PA |
139 | if (the_low_target.thread_added != NULL) |
140 | (*the_low_target.thread_added) (th); | |
b80864fb DJ |
141 | |
142 | return th; | |
143 | } | |
144 | ||
145 | /* Delete a thread from the list of threads. */ | |
146 | static void | |
147 | delete_thread_info (struct inferior_list_entry *thread) | |
148 | { | |
41093d81 | 149 | win32_thread_info *th = inferior_target_data ((struct thread_info *) thread); |
b80864fb DJ |
150 | |
151 | remove_thread ((struct thread_info *) thread); | |
152 | CloseHandle (th->h); | |
153 | free (th); | |
154 | } | |
155 | ||
156 | /* Delete a thread from the list of threads. */ | |
157 | static void | |
158 | child_delete_thread (DWORD id) | |
159 | { | |
160 | struct inferior_list_entry *thread; | |
161 | ||
162 | /* If the last thread is exiting, just return. */ | |
163 | if (all_threads.head == all_threads.tail) | |
164 | return; | |
165 | ||
166 | thread = find_inferior_id (&all_threads, id); | |
167 | if (thread == NULL) | |
168 | return; | |
169 | ||
170 | delete_thread_info (thread); | |
171 | } | |
172 | ||
173 | /* Transfer memory from/to the debugged process. */ | |
174 | static int | |
175 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
176 | int write, struct target_ops *target) | |
177 | { | |
178 | SIZE_T done; | |
179 | long addr = (long) memaddr; | |
180 | ||
181 | if (write) | |
182 | { | |
183 | WriteProcessMemory (current_process_handle, (LPVOID) addr, | |
184 | (LPCVOID) our, len, &done); | |
185 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); | |
186 | } | |
187 | else | |
188 | { | |
189 | ReadProcessMemory (current_process_handle, (LPCVOID) addr, (LPVOID) our, | |
190 | len, &done); | |
191 | } | |
192 | return done; | |
193 | } | |
194 | ||
195 | /* Generally, what has the program done? */ | |
196 | enum target_waitkind | |
197 | { | |
198 | /* The program has exited. The exit status is in value.integer. */ | |
199 | TARGET_WAITKIND_EXITED, | |
200 | ||
201 | /* The program has stopped with a signal. Which signal is in | |
202 | value.sig. */ | |
203 | TARGET_WAITKIND_STOPPED, | |
204 | ||
205 | /* The program is letting us know that it dynamically loaded something | |
206 | (e.g. it called load(2) on AIX). */ | |
207 | TARGET_WAITKIND_LOADED, | |
208 | ||
209 | /* The program has exec'ed a new executable file. The new file's | |
210 | pathname is pointed to by value.execd_pathname. */ | |
b80864fb DJ |
211 | TARGET_WAITKIND_EXECD, |
212 | ||
7390519e PA |
213 | /* Nothing interesting happened, but we stopped anyway. We take the |
214 | chance to check if GDB requested an interrupt. */ | |
b80864fb DJ |
215 | TARGET_WAITKIND_SPURIOUS, |
216 | }; | |
217 | ||
218 | struct target_waitstatus | |
219 | { | |
220 | enum target_waitkind kind; | |
221 | ||
222 | /* Forked child pid, execd pathname, exit status or signal number. */ | |
223 | union | |
224 | { | |
225 | int integer; | |
226 | enum target_signal sig; | |
227 | int related_pid; | |
228 | char *execd_pathname; | |
229 | int syscall_id; | |
230 | } | |
231 | value; | |
232 | }; | |
233 | ||
ed50f18f | 234 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
235 | state. */ |
236 | static void | |
237 | child_init_thread_list (void) | |
238 | { | |
239 | for_each_inferior (&all_threads, delete_thread_info); | |
240 | } | |
241 | ||
242 | static void | |
243 | do_initial_child_stuff (DWORD pid) | |
244 | { | |
b80864fb DJ |
245 | last_sig = TARGET_SIGNAL_0; |
246 | ||
b80864fb DJ |
247 | memset (¤t_event, 0, sizeof (current_event)); |
248 | ||
249 | child_init_thread_list (); | |
ed50f18f PA |
250 | |
251 | if (the_low_target.initial_stuff != NULL) | |
252 | (*the_low_target.initial_stuff) (); | |
b80864fb DJ |
253 | } |
254 | ||
255 | /* Resume all artificially suspended threads if we are continuing | |
256 | execution. */ | |
257 | static int | |
258 | continue_one_thread (struct inferior_list_entry *this_thread, void *id_ptr) | |
259 | { | |
260 | struct thread_info *thread = (struct thread_info *) this_thread; | |
261 | int thread_id = * (int *) id_ptr; | |
41093d81 | 262 | win32_thread_info *th = inferior_target_data (thread); |
b80864fb DJ |
263 | int i; |
264 | ||
265 | if ((thread_id == -1 || thread_id == th->tid) | |
266 | && th->suspend_count) | |
267 | { | |
34b34921 | 268 | if (th->context.ContextFlags) |
b80864fb | 269 | { |
34b34921 | 270 | (*the_low_target.set_thread_context) (th, ¤t_event); |
b80864fb DJ |
271 | th->context.ContextFlags = 0; |
272 | } | |
34b34921 PA |
273 | |
274 | for (i = 0; i < th->suspend_count; i++) | |
275 | (void) ResumeThread (th->h); | |
276 | th->suspend_count = 0; | |
b80864fb DJ |
277 | } |
278 | ||
279 | return 0; | |
280 | } | |
281 | ||
282 | static BOOL | |
283 | child_continue (DWORD continue_status, int thread_id) | |
284 | { | |
285 | BOOL res; | |
286 | ||
287 | res = ContinueDebugEvent (current_event.dwProcessId, | |
288 | current_event.dwThreadId, continue_status); | |
b80864fb DJ |
289 | if (res) |
290 | find_inferior (&all_threads, continue_one_thread, &thread_id); | |
291 | ||
b80864fb DJ |
292 | return res; |
293 | } | |
294 | ||
b80864fb DJ |
295 | /* Fetch register(s) from the current thread context. */ |
296 | static void | |
297 | child_fetch_inferior_registers (int r) | |
298 | { | |
299 | int regno; | |
41093d81 | 300 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
301 | if (r == -1 || r == 0 || r > NUM_REGS) |
302 | child_fetch_inferior_registers (NUM_REGS); | |
303 | else | |
304 | for (regno = 0; regno < r; regno++) | |
34b34921 | 305 | (*the_low_target.fetch_inferior_register) (th, regno); |
b80864fb DJ |
306 | } |
307 | ||
308 | /* Store a new register value into the current thread context. We don't | |
309 | change the program's context until later, when we resume it. */ | |
310 | static void | |
311 | child_store_inferior_registers (int r) | |
312 | { | |
313 | int regno; | |
41093d81 | 314 | win32_thread_info *th = thread_rec (current_inferior_tid (), TRUE); |
b80864fb DJ |
315 | if (r == -1 || r == 0 || r > NUM_REGS) |
316 | child_store_inferior_registers (NUM_REGS); | |
317 | else | |
318 | for (regno = 0; regno < r; regno++) | |
34b34921 | 319 | (*the_low_target.store_inferior_register) (th, regno); |
b80864fb DJ |
320 | } |
321 | ||
ed50f18f PA |
322 | /* Map the Windows error number in ERROR to a locale-dependent error |
323 | message string and return a pointer to it. Typically, the values | |
324 | for ERROR come from GetLastError. | |
325 | ||
326 | The string pointed to shall not be modified by the application, | |
327 | but may be overwritten by a subsequent call to strwinerror | |
328 | ||
329 | The strwinerror function does not change the current setting | |
330 | of GetLastError. */ | |
331 | ||
332 | char * | |
333 | strwinerror (DWORD error) | |
334 | { | |
335 | static char buf[1024]; | |
336 | TCHAR *msgbuf; | |
337 | DWORD lasterr = GetLastError (); | |
338 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
339 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
340 | NULL, | |
341 | error, | |
342 | 0, /* Default language */ | |
343 | (LPVOID)&msgbuf, | |
344 | 0, | |
345 | NULL); | |
346 | if (chars != 0) | |
347 | { | |
348 | /* If there is an \r\n appended, zap it. */ | |
349 | if (chars >= 2 | |
350 | && msgbuf[chars - 2] == '\r' | |
351 | && msgbuf[chars - 1] == '\n') | |
352 | { | |
353 | chars -= 2; | |
354 | msgbuf[chars] = 0; | |
355 | } | |
356 | ||
357 | if (chars > ((COUNTOF (buf)) - 1)) | |
358 | { | |
359 | chars = COUNTOF (buf) - 1; | |
360 | msgbuf [chars] = 0; | |
361 | } | |
362 | ||
363 | #ifdef UNICODE | |
364 | wcstombs (buf, msgbuf, chars + 1); | |
365 | #else | |
366 | strncpy (buf, msgbuf, chars + 1); | |
367 | #endif | |
368 | LocalFree (msgbuf); | |
369 | } | |
370 | else | |
371 | sprintf (buf, "unknown win32 error (%ld)", error); | |
372 | ||
373 | SetLastError (lasterr); | |
374 | return buf; | |
375 | } | |
376 | ||
b80864fb DJ |
377 | /* Start a new process. |
378 | PROGRAM is a path to the program to execute. | |
379 | ARGS is a standard NULL-terminated array of arguments, | |
380 | to be passed to the inferior as ``argv''. | |
381 | Returns the new PID on success, -1 on failure. Registers the new | |
382 | process with the process list. */ | |
383 | static int | |
384 | win32_create_inferior (char *program, char **program_args) | |
385 | { | |
386 | #ifndef USE_WIN32API | |
387 | char real_path[MAXPATHLEN]; | |
388 | char *orig_path, *new_path, *path_ptr; | |
389 | #endif | |
b80864fb DJ |
390 | BOOL ret; |
391 | DWORD flags; | |
392 | char *args; | |
393 | int argslen; | |
394 | int argc; | |
ed50f18f PA |
395 | PROCESS_INFORMATION pi; |
396 | #ifndef __MINGW32CE__ | |
bf914831 | 397 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; |
ed50f18f PA |
398 | char *winenv = NULL; |
399 | #else | |
400 | wchar_t *wargs, *wprogram; | |
401 | #endif | |
b80864fb DJ |
402 | |
403 | if (!program) | |
404 | error ("No executable specified, specify executable to debug.\n"); | |
405 | ||
b80864fb DJ |
406 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
407 | ||
408 | #ifndef USE_WIN32API | |
409 | orig_path = NULL; | |
410 | path_ptr = getenv ("PATH"); | |
411 | if (path_ptr) | |
412 | { | |
413 | orig_path = alloca (strlen (path_ptr) + 1); | |
414 | new_path = alloca (cygwin_posix_to_win32_path_list_buf_size (path_ptr)); | |
415 | strcpy (orig_path, path_ptr); | |
416 | cygwin_posix_to_win32_path_list (path_ptr, new_path); | |
417 | setenv ("PATH", new_path, 1); | |
418 | } | |
419 | cygwin_conv_to_win32_path (program, real_path); | |
420 | program = real_path; | |
421 | #endif | |
422 | ||
ed50f18f | 423 | argslen = 1; |
b80864fb DJ |
424 | for (argc = 1; program_args[argc]; argc++) |
425 | argslen += strlen (program_args[argc]) + 1; | |
426 | args = alloca (argslen); | |
ed50f18f | 427 | args[0] = '\0'; |
b80864fb DJ |
428 | for (argc = 1; program_args[argc]; argc++) |
429 | { | |
430 | /* FIXME: Can we do better about quoting? How does Cygwin | |
431 | handle this? */ | |
432 | strcat (args, " "); | |
433 | strcat (args, program_args[argc]); | |
434 | } | |
ed50f18f | 435 | OUTMSG2 (("Command line is \"%s\"\n", args)); |
b80864fb | 436 | |
ed50f18f | 437 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 438 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 439 | #endif |
b80864fb | 440 | |
ed50f18f PA |
441 | #ifdef __MINGW32CE__ |
442 | to_back_slashes (program); | |
443 | wargs = alloca (argslen * sizeof (wchar_t)); | |
444 | mbstowcs (wargs, args, argslen); | |
445 | wprogram = alloca ((strlen (program) + 1) * sizeof (wchar_t)); | |
446 | mbstowcs (wprogram, program, strlen (program) + 1); | |
447 | ret = CreateProcessW (wprogram, /* image name */ | |
448 | wargs, /* command line */ | |
449 | NULL, /* security, not supported */ | |
450 | NULL, /* thread, not supported */ | |
451 | FALSE, /* inherit handles, not supported */ | |
452 | flags, /* start flags */ | |
453 | NULL, /* environment, not supported */ | |
454 | NULL, /* current directory, not supported */ | |
455 | NULL, /* start info, not supported */ | |
456 | &pi); /* proc info */ | |
457 | #else | |
bf914831 PA |
458 | ret = CreateProcessA (program, /* image name */ |
459 | args, /* command line */ | |
460 | NULL, /* security */ | |
461 | NULL, /* thread */ | |
462 | TRUE, /* inherit handles */ | |
463 | flags, /* start flags */ | |
464 | winenv, /* environment */ | |
465 | NULL, /* current directory */ | |
466 | &si, /* start info */ | |
467 | &pi); /* proc info */ | |
ed50f18f | 468 | #endif |
b80864fb DJ |
469 | |
470 | #ifndef USE_WIN32API | |
471 | if (orig_path) | |
472 | setenv ("PATH", orig_path, 1); | |
473 | #endif | |
474 | ||
475 | if (!ret) | |
476 | { | |
ed50f18f PA |
477 | DWORD err = GetLastError (); |
478 | error ("Error creating process \"%s%s\", (error %d): %s\n", | |
479 | program, args, (int) err, strwinerror (err)); | |
b80864fb DJ |
480 | } |
481 | else | |
482 | { | |
483 | OUTMSG2 (("Process created: %s\n", (char *) args)); | |
484 | } | |
485 | ||
ed50f18f PA |
486 | #ifndef _WIN32_WCE |
487 | /* On Windows CE this handle can't be closed. The OS reuses | |
488 | it in the debug events, while the 9x/NT versions of Windows | |
489 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 490 | CloseHandle (pi.hThread); |
ed50f18f | 491 | #endif |
b80864fb DJ |
492 | |
493 | current_process_handle = pi.hProcess; | |
494 | current_process_id = pi.dwProcessId; | |
495 | ||
496 | do_initial_child_stuff (current_process_id); | |
497 | ||
498 | return current_process_id; | |
499 | } | |
500 | ||
501 | /* Attach to a running process. | |
502 | PID is the process ID to attach to, specified by the user | |
503 | or a higher layer. */ | |
504 | static int | |
505 | win32_attach (unsigned long pid) | |
506 | { | |
bf914831 PA |
507 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
508 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
509 | #ifdef _WIN32_WCE |
510 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
511 | #else | |
512 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
513 | #endif | |
bf914831 PA |
514 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
515 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 516 | |
1d5315fe PA |
517 | if (DebugActiveProcess (pid)) |
518 | { | |
519 | if (DebugSetProcessKillOnExit != NULL) | |
520 | DebugSetProcessKillOnExit (FALSE); | |
b80864fb | 521 | |
1d5315fe | 522 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
b80864fb | 523 | |
1d5315fe PA |
524 | if (current_process_handle != NULL) |
525 | { | |
526 | current_process_id = pid; | |
527 | do_initial_child_stuff (pid); | |
528 | return 0; | |
529 | } | |
b80864fb DJ |
530 | if (DebugActiveProcessStop != NULL) |
531 | DebugActiveProcessStop (current_process_id); | |
532 | } | |
533 | ||
1d5315fe | 534 | error ("Attach to process failed."); |
b80864fb DJ |
535 | } |
536 | ||
bce7165d PA |
537 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
538 | static void | |
539 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
540 | { | |
541 | #define READ_BUFFER_LEN 1024 | |
542 | CORE_ADDR addr; | |
543 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
544 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
545 | ||
546 | if (nbytes == 0) | |
547 | return; | |
548 | ||
549 | if (nbytes > READ_BUFFER_LEN) | |
550 | nbytes = READ_BUFFER_LEN; | |
551 | ||
552 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
553 | ||
554 | if (current_event.u.DebugString.fUnicode) | |
555 | { | |
556 | /* The event tells us how many bytes, not chars, even | |
557 | in Unicode. */ | |
558 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; | |
559 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
560 | return; | |
561 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
562 | } | |
563 | else | |
564 | { | |
565 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
566 | return; | |
567 | } | |
568 | ||
569 | if (strncmp (s, "cYg", 3) != 0) | |
570 | monitor_output (s); | |
571 | #undef READ_BUFFER_LEN | |
572 | } | |
573 | ||
b80864fb DJ |
574 | /* Kill all inferiors. */ |
575 | static void | |
576 | win32_kill (void) | |
577 | { | |
ed50f18f PA |
578 | win32_thread_info *current_thread; |
579 | ||
9d606399 DJ |
580 | if (current_process_handle == NULL) |
581 | return; | |
582 | ||
b80864fb DJ |
583 | TerminateProcess (current_process_handle, 0); |
584 | for (;;) | |
585 | { | |
586 | if (!child_continue (DBG_CONTINUE, -1)) | |
587 | break; | |
588 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
589 | break; | |
590 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
591 | break; | |
bce7165d PA |
592 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
593 | { | |
594 | struct target_waitstatus our_status = { 0 }; | |
595 | handle_output_debug_string (&our_status); | |
596 | } | |
b80864fb | 597 | } |
ed50f18f PA |
598 | |
599 | CloseHandle (current_process_handle); | |
600 | ||
601 | current_thread = inferior_target_data (current_inferior); | |
602 | if (current_thread && current_thread->h) | |
603 | { | |
604 | /* This may fail in an attached process, so don't check. */ | |
605 | (void) CloseHandle (current_thread->h); | |
606 | } | |
b80864fb DJ |
607 | } |
608 | ||
609 | /* Detach from all inferiors. */ | |
444d6139 | 610 | static int |
b80864fb DJ |
611 | win32_detach (void) |
612 | { | |
444d6139 PA |
613 | HANDLE h; |
614 | ||
bf914831 PA |
615 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
616 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
617 | #ifdef _WIN32_WCE |
618 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
619 | #else | |
620 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
621 | #endif | |
bf914831 PA |
622 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
623 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 624 | |
444d6139 PA |
625 | if (DebugSetProcessKillOnExit == NULL |
626 | || DebugActiveProcessStop == NULL) | |
627 | return -1; | |
b80864fb | 628 | |
444d6139 PA |
629 | /* We need a new handle, since DebugActiveProcessStop |
630 | closes all the ones that came through the events. */ | |
631 | if ((h = OpenProcess (PROCESS_ALL_ACCESS, | |
632 | FALSE, | |
633 | current_process_id)) == NULL) | |
634 | { | |
635 | /* The process died. */ | |
636 | return -1; | |
637 | } | |
638 | ||
639 | { | |
640 | struct thread_resume resume; | |
641 | resume.thread = -1; | |
642 | resume.step = 0; | |
643 | resume.sig = 0; | |
644 | resume.leave_stopped = 0; | |
645 | win32_resume (&resume); | |
646 | } | |
647 | ||
648 | if (!DebugActiveProcessStop (current_process_id)) | |
649 | { | |
650 | CloseHandle (h); | |
651 | return -1; | |
652 | } | |
653 | DebugSetProcessKillOnExit (FALSE); | |
654 | ||
655 | current_process_handle = h; | |
656 | return 0; | |
657 | } | |
658 | ||
659 | /* Wait for inferiors to end. */ | |
660 | static void | |
661 | win32_join (void) | |
662 | { | |
663 | if (current_process_id == 0 | |
664 | || current_process_handle == NULL) | |
665 | return; | |
666 | ||
667 | WaitForSingleObject (current_process_handle, INFINITE); | |
668 | CloseHandle (current_process_handle); | |
669 | ||
670 | current_process_handle = NULL; | |
671 | current_process_id = 0; | |
b80864fb DJ |
672 | } |
673 | ||
674 | /* Return 1 iff the thread with thread ID TID is alive. */ | |
675 | static int | |
676 | win32_thread_alive (unsigned long tid) | |
677 | { | |
678 | int res; | |
679 | ||
680 | /* Our thread list is reliable; don't bother to poll target | |
681 | threads. */ | |
682 | if (find_inferior_id (&all_threads, tid) != NULL) | |
683 | res = 1; | |
684 | else | |
685 | res = 0; | |
686 | return res; | |
687 | } | |
688 | ||
689 | /* Resume the inferior process. RESUME_INFO describes how we want | |
690 | to resume. */ | |
691 | static void | |
692 | win32_resume (struct thread_resume *resume_info) | |
693 | { | |
694 | DWORD tid; | |
695 | enum target_signal sig; | |
696 | int step; | |
41093d81 | 697 | win32_thread_info *th; |
b80864fb DJ |
698 | DWORD continue_status = DBG_CONTINUE; |
699 | ||
700 | /* This handles the very limited set of resume packets that GDB can | |
701 | currently produce. */ | |
702 | ||
703 | if (resume_info[0].thread == -1) | |
704 | tid = -1; | |
705 | else if (resume_info[1].thread == -1 && !resume_info[1].leave_stopped) | |
706 | tid = -1; | |
707 | else | |
708 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
709 | the Windows resume code do the right thing for thread switching. */ | |
710 | tid = current_event.dwThreadId; | |
711 | ||
712 | if (resume_info[0].thread != -1) | |
713 | { | |
714 | sig = resume_info[0].sig; | |
715 | step = resume_info[0].step; | |
716 | } | |
717 | else | |
718 | { | |
719 | sig = 0; | |
720 | step = 0; | |
721 | } | |
722 | ||
723 | if (sig != TARGET_SIGNAL_0) | |
724 | { | |
725 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
726 | { | |
727 | OUTMSG (("Cannot continue with signal %d here.\n", sig)); | |
728 | } | |
729 | else if (sig == last_sig) | |
730 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
731 | else | |
732 | OUTMSG (("Can only continue with recieved signal %d.\n", last_sig)); | |
733 | } | |
734 | ||
735 | last_sig = TARGET_SIGNAL_0; | |
736 | ||
737 | /* Get context for the currently selected thread. */ | |
738 | th = thread_rec (current_event.dwThreadId, FALSE); | |
739 | if (th) | |
740 | { | |
741 | if (th->context.ContextFlags) | |
742 | { | |
b80864fb DJ |
743 | /* Move register values from the inferior into the thread |
744 | context structure. */ | |
745 | regcache_invalidate (); | |
746 | ||
747 | if (step) | |
ed50f18f PA |
748 | { |
749 | if (the_low_target.single_step != NULL) | |
750 | (*the_low_target.single_step) (th); | |
751 | else | |
752 | error ("Single stepping is not supported " | |
753 | "in this configuration.\n"); | |
754 | } | |
34b34921 PA |
755 | |
756 | (*the_low_target.set_thread_context) (th, ¤t_event); | |
b80864fb DJ |
757 | th->context.ContextFlags = 0; |
758 | } | |
759 | } | |
760 | ||
761 | /* Allow continuing with the same signal that interrupted us. | |
762 | Otherwise complain. */ | |
763 | ||
764 | child_continue (continue_status, tid); | |
765 | } | |
766 | ||
34b34921 | 767 | static void |
b80864fb DJ |
768 | handle_exception (struct target_waitstatus *ourstatus) |
769 | { | |
b80864fb DJ |
770 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
771 | ||
772 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
773 | ||
b80864fb DJ |
774 | switch (code) |
775 | { | |
776 | case EXCEPTION_ACCESS_VIOLATION: | |
777 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
778 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
779 | break; | |
780 | case STATUS_STACK_OVERFLOW: | |
781 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
782 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
783 | break; | |
784 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
785 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
786 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
787 | break; | |
788 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
789 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
790 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
791 | break; | |
792 | case STATUS_FLOAT_INEXACT_RESULT: | |
793 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
794 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
795 | break; | |
796 | case STATUS_FLOAT_INVALID_OPERATION: | |
797 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
798 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
799 | break; | |
800 | case STATUS_FLOAT_OVERFLOW: | |
801 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
802 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
803 | break; | |
804 | case STATUS_FLOAT_STACK_CHECK: | |
805 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
806 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
807 | break; | |
808 | case STATUS_FLOAT_UNDERFLOW: | |
809 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
810 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
811 | break; | |
812 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
813 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
814 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
815 | break; | |
816 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
817 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
818 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
819 | break; | |
820 | case STATUS_INTEGER_OVERFLOW: | |
821 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
822 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
823 | break; | |
824 | case EXCEPTION_BREAKPOINT: | |
825 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
826 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
ed50f18f PA |
827 | #ifdef _WIN32_WCE |
828 | /* Remove the initial breakpoint. */ | |
829 | check_breakpoints ((CORE_ADDR) (long) current_event | |
830 | .u.Exception.ExceptionRecord.ExceptionAddress); | |
831 | #endif | |
b80864fb DJ |
832 | break; |
833 | case DBG_CONTROL_C: | |
834 | OUTMSG2 (("DBG_CONTROL_C")); | |
835 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
836 | break; | |
837 | case DBG_CONTROL_BREAK: | |
838 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
839 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
840 | break; | |
841 | case EXCEPTION_SINGLE_STEP: | |
842 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
843 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
844 | break; | |
845 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
846 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
847 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
848 | break; | |
849 | case EXCEPTION_PRIV_INSTRUCTION: | |
850 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
851 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
852 | break; | |
853 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
854 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
855 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
856 | break; | |
857 | default: | |
858 | if (current_event.u.Exception.dwFirstChance) | |
34b34921 PA |
859 | { |
860 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
861 | return; | |
862 | } | |
b80864fb DJ |
863 | OUTMSG2 (("gdbserver: unknown target exception 0x%08lx at 0x%08lx", |
864 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
865 | (DWORD) current_event.u.Exception.ExceptionRecord. | |
866 | ExceptionAddress)); | |
867 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
868 | break; | |
869 | } | |
870 | OUTMSG2 (("\n")); | |
871 | last_sig = ourstatus->value.sig; | |
b80864fb DJ |
872 | } |
873 | ||
34b34921 PA |
874 | /* Get the next event from the child. */ |
875 | static void | |
b80864fb DJ |
876 | get_child_debug_event (struct target_waitstatus *ourstatus) |
877 | { | |
878 | BOOL debug_event; | |
b80864fb DJ |
879 | |
880 | last_sig = TARGET_SIGNAL_0; | |
881 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
882 | ||
7390519e PA |
883 | /* Keep the wait time low enough for confortable remote interruption, |
884 | but high enough so gdbserver doesn't become a bottleneck. */ | |
885 | if (!(debug_event = WaitForDebugEvent (¤t_event, 250))) | |
34b34921 | 886 | return; |
b80864fb DJ |
887 | |
888 | current_inferior = | |
889 | (struct thread_info *) find_inferior_id (&all_threads, | |
890 | current_event.dwThreadId); | |
891 | ||
34b34921 | 892 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
893 | { |
894 | case CREATE_THREAD_DEBUG_EVENT: | |
895 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
896 | "for pid=%d tid=%x)\n", | |
897 | (unsigned) current_event.dwProcessId, | |
898 | (unsigned) current_event.dwThreadId)); | |
899 | ||
900 | /* Record the existence of this thread. */ | |
34b34921 | 901 | child_add_thread (current_event.dwThreadId, |
b80864fb | 902 | current_event.u.CreateThread.hThread); |
b80864fb DJ |
903 | break; |
904 | ||
905 | case EXIT_THREAD_DEBUG_EVENT: | |
906 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
907 | "for pid=%d tid=%x\n", | |
908 | (unsigned) current_event.dwProcessId, | |
909 | (unsigned) current_event.dwThreadId)); | |
910 | child_delete_thread (current_event.dwThreadId); | |
b80864fb DJ |
911 | break; |
912 | ||
913 | case CREATE_PROCESS_DEBUG_EVENT: | |
914 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
915 | "for pid=%d tid=%x\n", | |
916 | (unsigned) current_event.dwProcessId, | |
917 | (unsigned) current_event.dwThreadId)); | |
918 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
919 | ||
920 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
921 | main_thread_id = current_event.dwThreadId; | |
922 | ||
923 | ourstatus->kind = TARGET_WAITKIND_EXECD; | |
924 | ourstatus->value.execd_pathname = "Main executable"; | |
925 | ||
926 | /* Add the main thread. */ | |
34b34921 PA |
927 | child_add_thread (main_thread_id, |
928 | current_event.u.CreateProcessInfo.hThread); | |
b80864fb | 929 | |
34b34921 | 930 | ourstatus->value.related_pid = current_event.dwThreadId; |
ed50f18f PA |
931 | #ifdef _WIN32_WCE |
932 | /* Windows CE doesn't set the initial breakpoint automatically | |
933 | like the desktop versions of Windows do. We add it explicitly | |
934 | here. It will be removed as soon as it is hit. */ | |
935 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
936 | .CreateProcessInfo.lpStartAddress, | |
937 | delete_breakpoint_at); | |
938 | #endif | |
b80864fb DJ |
939 | break; |
940 | ||
941 | case EXIT_PROCESS_DEBUG_EVENT: | |
942 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
943 | "for pid=%d tid=%x\n", | |
944 | (unsigned) current_event.dwProcessId, | |
945 | (unsigned) current_event.dwThreadId)); | |
946 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
947 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
948 | CloseHandle (current_process_handle); | |
9d606399 | 949 | current_process_handle = NULL; |
b80864fb DJ |
950 | break; |
951 | ||
952 | case LOAD_DLL_DEBUG_EVENT: | |
953 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
954 | "for pid=%d tid=%x\n", | |
955 | (unsigned) current_event.dwProcessId, | |
956 | (unsigned) current_event.dwThreadId)); | |
957 | CloseHandle (current_event.u.LoadDll.hFile); | |
958 | ||
959 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
960 | ourstatus->value.integer = 0; | |
b80864fb DJ |
961 | break; |
962 | ||
963 | case UNLOAD_DLL_DEBUG_EVENT: | |
964 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
965 | "for pid=%d tid=%x\n", | |
966 | (unsigned) current_event.dwProcessId, | |
967 | (unsigned) current_event.dwThreadId)); | |
968 | break; | |
969 | ||
970 | case EXCEPTION_DEBUG_EVENT: | |
971 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
972 | "for pid=%d tid=%x\n", | |
973 | (unsigned) current_event.dwProcessId, | |
974 | (unsigned) current_event.dwThreadId)); | |
34b34921 | 975 | handle_exception (ourstatus); |
b80864fb DJ |
976 | break; |
977 | ||
978 | case OUTPUT_DEBUG_STRING_EVENT: | |
979 | /* A message from the kernel (or Cygwin). */ | |
980 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
981 | "for pid=%d tid=%x\n", | |
982 | (unsigned) current_event.dwProcessId, | |
983 | (unsigned) current_event.dwThreadId)); | |
bce7165d | 984 | handle_output_debug_string (ourstatus); |
b80864fb DJ |
985 | break; |
986 | ||
987 | default: | |
988 | OUTMSG2 (("gdbserver: kernel event unknown " | |
989 | "for pid=%d tid=%x code=%ld\n", | |
990 | (unsigned) current_event.dwProcessId, | |
991 | (unsigned) current_event.dwThreadId, | |
992 | current_event.dwDebugEventCode)); | |
993 | break; | |
994 | } | |
995 | ||
996 | current_inferior = | |
997 | (struct thread_info *) find_inferior_id (&all_threads, | |
998 | current_event.dwThreadId); | |
b80864fb DJ |
999 | } |
1000 | ||
1001 | /* Wait for the inferior process to change state. | |
1002 | STATUS will be filled in with a response code to send to GDB. | |
1003 | Returns the signal which caused the process to stop. */ | |
1004 | static unsigned char | |
1005 | win32_wait (char *status) | |
1006 | { | |
1007 | struct target_waitstatus our_status; | |
1008 | ||
1009 | *status = 'T'; | |
1010 | ||
1011 | while (1) | |
1012 | { | |
7390519e PA |
1013 | /* Check if GDB sent us an interrupt request. */ |
1014 | check_remote_input_interrupt_request (); | |
1015 | ||
b80864fb DJ |
1016 | get_child_debug_event (&our_status); |
1017 | ||
34b34921 | 1018 | switch (our_status.kind) |
b80864fb | 1019 | { |
34b34921 | 1020 | case TARGET_WAITKIND_EXITED: |
b80864fb DJ |
1021 | OUTMSG2 (("Child exited with retcode = %x\n", |
1022 | our_status.value.integer)); | |
1023 | ||
1024 | *status = 'W'; | |
1025 | ||
1026 | child_fetch_inferior_registers (-1); | |
1027 | ||
1028 | return our_status.value.integer; | |
34b34921 | 1029 | case TARGET_WAITKIND_STOPPED: |
f72f3e60 | 1030 | OUTMSG2 (("Child Stopped with signal = %d \n", |
ed50f18f | 1031 | our_status.value.sig)); |
b80864fb DJ |
1032 | |
1033 | *status = 'T'; | |
1034 | ||
1035 | child_fetch_inferior_registers (-1); | |
1036 | ||
1037 | return our_status.value.sig; | |
34b34921 PA |
1038 | default: |
1039 | OUTMSG (("Ignoring unknown internal event, %d\n", our_status.kind)); | |
1040 | /* fall-through */ | |
1041 | case TARGET_WAITKIND_SPURIOUS: | |
1042 | case TARGET_WAITKIND_LOADED: | |
1043 | case TARGET_WAITKIND_EXECD: | |
1044 | /* do nothing, just continue */ | |
1045 | child_continue (DBG_CONTINUE, -1); | |
1046 | break; | |
b80864fb | 1047 | } |
b80864fb DJ |
1048 | } |
1049 | } | |
1050 | ||
1051 | /* Fetch registers from the inferior process. | |
1052 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
1053 | static void | |
1054 | win32_fetch_inferior_registers (int regno) | |
1055 | { | |
1056 | child_fetch_inferior_registers (regno); | |
1057 | } | |
1058 | ||
1059 | /* Store registers to the inferior process. | |
1060 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
1061 | static void | |
1062 | win32_store_inferior_registers (int regno) | |
1063 | { | |
1064 | child_store_inferior_registers (regno); | |
1065 | } | |
1066 | ||
1067 | /* Read memory from the inferior process. This should generally be | |
1068 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1069 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
1070 | static int | |
1071 | win32_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) | |
1072 | { | |
ed50f18f | 1073 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1074 | } |
1075 | ||
1076 | /* Write memory to the inferior process. This should generally be | |
1077 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1078 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1079 | Returns 0 on success and errno on failure. */ | |
1080 | static int | |
1081 | win32_write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, | |
1082 | int len) | |
1083 | { | |
1084 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1085 | } | |
1086 | ||
7390519e PA |
1087 | /* Send an interrupt request to the inferior process. */ |
1088 | static void | |
1089 | win32_request_interrupt (void) | |
1090 | { | |
1091 | winapi_DebugBreakProcess DebugBreakProcess; | |
1092 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1093 | ||
1094 | #ifdef _WIN32_WCE | |
1095 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1096 | #else | |
1097 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1098 | #endif | |
1099 | ||
1100 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1101 | ||
1102 | if (GenerateConsoleCtrlEvent != NULL | |
1103 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1104 | return; | |
1105 | ||
1106 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1107 | not a process group id. | |
1108 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1109 | breakpoint exception in the interior process. */ | |
1110 | ||
1111 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1112 | ||
1113 | if (DebugBreakProcess != NULL | |
1114 | && DebugBreakProcess (current_process_handle)) | |
1115 | return; | |
1116 | ||
1117 | OUTMSG (("Could not interrupt process.\n")); | |
1118 | } | |
1119 | ||
820f2bda PA |
1120 | static const char * |
1121 | win32_arch_string (void) | |
1122 | { | |
ed50f18f | 1123 | return the_low_target.arch_string; |
820f2bda PA |
1124 | } |
1125 | ||
b80864fb DJ |
1126 | static struct target_ops win32_target_ops = { |
1127 | win32_create_inferior, | |
1128 | win32_attach, | |
1129 | win32_kill, | |
1130 | win32_detach, | |
444d6139 | 1131 | win32_join, |
b80864fb DJ |
1132 | win32_thread_alive, |
1133 | win32_resume, | |
1134 | win32_wait, | |
1135 | win32_fetch_inferior_registers, | |
1136 | win32_store_inferior_registers, | |
1137 | win32_read_inferior_memory, | |
1138 | win32_write_inferior_memory, | |
820f2bda | 1139 | NULL, |
7390519e | 1140 | win32_request_interrupt, |
820f2bda PA |
1141 | NULL, |
1142 | NULL, | |
1143 | NULL, | |
1144 | NULL, | |
1145 | NULL, | |
1146 | NULL, | |
1147 | NULL, | |
1148 | win32_arch_string | |
b80864fb DJ |
1149 | }; |
1150 | ||
1151 | /* Initialize the Win32 backend. */ | |
1152 | void | |
1153 | initialize_low (void) | |
1154 | { | |
1155 | set_target_ops (&win32_target_ops); | |
ed50f18f PA |
1156 | if (the_low_target.breakpoint != NULL) |
1157 | set_breakpoint_data (the_low_target.breakpoint, | |
1158 | the_low_target.breakpoint_len); | |
b80864fb DJ |
1159 | init_registers (); |
1160 | } |