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b80864fb | 1 | /* Low level interface to Windows debugging, for gdbserver. |
618f726f | 2 | Copyright (C) 2006-2016 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" | |
59a016f0 | 23 | #include "gdb/fileio.h" |
ed50f18f PA |
24 | #include "mem-break.h" |
25 | #include "win32-low.h" | |
623b6bdf | 26 | #include "gdbthread.h" |
799cdc37 | 27 | #include "dll.h" |
533b0600 | 28 | #include "hostio.h" |
b80864fb | 29 | #include <windows.h> |
ed50f18f | 30 | #include <winnt.h> |
b80864fb | 31 | #include <imagehlp.h> |
255e7678 | 32 | #include <tlhelp32.h> |
b80864fb | 33 | #include <psapi.h> |
b80864fb DJ |
34 | #include <process.h> |
35 | ||
36 | #ifndef USE_WIN32API | |
37 | #include <sys/cygwin.h> | |
38 | #endif | |
39 | ||
10357975 PA |
40 | #define OUTMSG(X) do { printf X; fflush (stderr); } while (0) |
41 | ||
42 | #define OUTMSG2(X) \ | |
43 | do \ | |
44 | { \ | |
45 | if (debug_threads) \ | |
46 | { \ | |
47 | printf X; \ | |
48 | fflush (stderr); \ | |
49 | } \ | |
50 | } while (0) | |
ed50f18f PA |
51 | |
52 | #ifndef _T | |
53 | #define _T(x) TEXT (x) | |
54 | #endif | |
55 | ||
56 | #ifndef COUNTOF | |
57 | #define COUNTOF(STR) (sizeof (STR) / sizeof ((STR)[0])) | |
b80864fb DJ |
58 | #endif |
59 | ||
bf914831 PA |
60 | #ifdef _WIN32_WCE |
61 | # define GETPROCADDRESS(DLL, PROC) \ | |
62 | ((winapi_ ## PROC) GetProcAddress (DLL, TEXT (#PROC))) | |
63 | #else | |
64 | # define GETPROCADDRESS(DLL, PROC) \ | |
65 | ((winapi_ ## PROC) GetProcAddress (DLL, #PROC)) | |
66 | #endif | |
67 | ||
b80864fb DJ |
68 | int using_threads = 1; |
69 | ||
70 | /* Globals. */ | |
d97903b2 | 71 | static int attaching = 0; |
b80864fb DJ |
72 | static HANDLE current_process_handle = NULL; |
73 | static DWORD current_process_id = 0; | |
5ac588cf | 74 | static DWORD main_thread_id = 0; |
a493e3e2 | 75 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
76 | |
77 | /* The current debug event from WaitForDebugEvent. */ | |
78 | static DEBUG_EVENT current_event; | |
79 | ||
4210d83e PA |
80 | /* A status that hasn't been reported to the core yet, and so |
81 | win32_wait should return it next, instead of fetching the next | |
82 | debug event off the win32 API. */ | |
83 | static struct target_waitstatus cached_status; | |
84 | ||
4d5d1aaa PA |
85 | /* Non zero if an interrupt request is to be satisfied by suspending |
86 | all threads. */ | |
87 | static int soft_interrupt_requested = 0; | |
88 | ||
89 | /* Non zero if the inferior is stopped in a simulated breakpoint done | |
90 | by suspending all the threads. */ | |
91 | static int faked_breakpoint = 0; | |
92 | ||
3aee8918 PA |
93 | const struct target_desc *win32_tdesc; |
94 | ||
ed50f18f | 95 | #define NUM_REGS (the_low_target.num_regs) |
b80864fb | 96 | |
7a9a7487 MG |
97 | typedef BOOL (WINAPI *winapi_DebugActiveProcessStop) (DWORD dwProcessId); |
98 | typedef BOOL (WINAPI *winapi_DebugSetProcessKillOnExit) (BOOL KillOnExit); | |
99 | typedef BOOL (WINAPI *winapi_DebugBreakProcess) (HANDLE); | |
100 | typedef BOOL (WINAPI *winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD); | |
b80864fb | 101 | |
4210d83e PA |
102 | static ptid_t win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus, |
103 | int options); | |
2bd7c093 | 104 | static void win32_resume (struct thread_resume *resume_info, size_t n); |
379a5e2d | 105 | #ifndef _WIN32_WCE |
f25b3fc3 | 106 | static void win32_add_all_dlls (void); |
379a5e2d | 107 | #endif |
34b34921 | 108 | |
b80864fb DJ |
109 | /* Get the thread ID from the current selected inferior (the current |
110 | thread). */ | |
95954743 | 111 | static ptid_t |
0bfdf32f | 112 | current_thread_ptid (void) |
b80864fb | 113 | { |
80894984 | 114 | return current_ptid; |
95954743 PA |
115 | } |
116 | ||
117 | /* The current debug event from WaitForDebugEvent. */ | |
118 | static ptid_t | |
119 | debug_event_ptid (DEBUG_EVENT *event) | |
120 | { | |
121 | return ptid_build (event->dwProcessId, event->dwThreadId, 0); | |
b80864fb DJ |
122 | } |
123 | ||
9c6c8194 PA |
124 | /* Get the thread context of the thread associated with TH. */ |
125 | ||
126 | static void | |
127 | win32_get_thread_context (win32_thread_info *th) | |
128 | { | |
129 | memset (&th->context, 0, sizeof (CONTEXT)); | |
a2abc7de | 130 | (*the_low_target.get_thread_context) (th); |
9c6c8194 PA |
131 | #ifdef _WIN32_WCE |
132 | memcpy (&th->base_context, &th->context, sizeof (CONTEXT)); | |
133 | #endif | |
134 | } | |
135 | ||
136 | /* Set the thread context of the thread associated with TH. */ | |
137 | ||
138 | static void | |
139 | win32_set_thread_context (win32_thread_info *th) | |
140 | { | |
141 | #ifdef _WIN32_WCE | |
142 | /* Calling SuspendThread on a thread that is running kernel code | |
143 | will report that the suspending was successful, but in fact, that | |
144 | will often not be true. In those cases, the context returned by | |
145 | GetThreadContext will not be correct by the time the thread | |
146 | stops, hence we can't set that context back into the thread when | |
147 | resuming - it will most likelly crash the inferior. | |
148 | Unfortunately, there is no way to know when the thread will | |
149 | really stop. To work around it, we'll only write the context | |
150 | back to the thread when either the user or GDB explicitly change | |
151 | it between stopping and resuming. */ | |
152 | if (memcmp (&th->context, &th->base_context, sizeof (CONTEXT)) != 0) | |
153 | #endif | |
a2abc7de | 154 | SetThreadContext (th->h, &th->context); |
9c6c8194 PA |
155 | } |
156 | ||
a2abc7de PA |
157 | /* Set the thread context of the thread associated with TH. */ |
158 | ||
159 | static void | |
160 | win32_prepare_to_resume (win32_thread_info *th) | |
b80864fb | 161 | { |
a2abc7de PA |
162 | if (the_low_target.prepare_to_resume != NULL) |
163 | (*the_low_target.prepare_to_resume) (th); | |
164 | } | |
b80864fb | 165 | |
a2abc7de | 166 | /* See win32-low.h. */ |
b80864fb | 167 | |
a2abc7de PA |
168 | void |
169 | win32_require_context (win32_thread_info *th) | |
170 | { | |
171 | if (th->context.ContextFlags == 0) | |
b80864fb | 172 | { |
c436e841 PA |
173 | if (!th->suspended) |
174 | { | |
175 | if (SuspendThread (th->h) == (DWORD) -1) | |
176 | { | |
177 | DWORD err = GetLastError (); | |
178 | OUTMSG (("warning: SuspendThread failed in thread_rec, " | |
179 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
180 | } | |
181 | else | |
182 | th->suspended = 1; | |
183 | } | |
b80864fb | 184 | |
9c6c8194 | 185 | win32_get_thread_context (th); |
b80864fb | 186 | } |
a2abc7de PA |
187 | } |
188 | ||
189 | /* Find a thread record given a thread id. If GET_CONTEXT is set then | |
190 | also retrieve the context for this thread. */ | |
191 | static win32_thread_info * | |
192 | thread_rec (ptid_t ptid, int get_context) | |
193 | { | |
194 | struct thread_info *thread; | |
195 | win32_thread_info *th; | |
b80864fb | 196 | |
a2abc7de PA |
197 | thread = (struct thread_info *) find_inferior_id (&all_threads, ptid); |
198 | if (thread == NULL) | |
199 | return NULL; | |
200 | ||
c3de4d92 | 201 | th = (win32_thread_info *) inferior_target_data (thread); |
a2abc7de PA |
202 | if (get_context) |
203 | win32_require_context (th); | |
b80864fb DJ |
204 | return th; |
205 | } | |
206 | ||
207 | /* Add a thread to the thread list. */ | |
41093d81 | 208 | static win32_thread_info * |
711e434b | 209 | child_add_thread (DWORD pid, DWORD tid, HANDLE h, void *tlb) |
b80864fb | 210 | { |
41093d81 | 211 | win32_thread_info *th; |
95954743 | 212 | ptid_t ptid = ptid_build (pid, tid, 0); |
b80864fb | 213 | |
95954743 | 214 | if ((th = thread_rec (ptid, FALSE))) |
b80864fb DJ |
215 | return th; |
216 | ||
8d749320 | 217 | th = XCNEW (win32_thread_info); |
b80864fb DJ |
218 | th->tid = tid; |
219 | th->h = h; | |
711e434b | 220 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
b80864fb | 221 | |
95954743 | 222 | add_thread (ptid, th); |
b80864fb | 223 | |
34b34921 PA |
224 | if (the_low_target.thread_added != NULL) |
225 | (*the_low_target.thread_added) (th); | |
b80864fb DJ |
226 | |
227 | return th; | |
228 | } | |
229 | ||
230 | /* Delete a thread from the list of threads. */ | |
231 | static void | |
c3de4d92 | 232 | delete_thread_info (struct inferior_list_entry *entry) |
b80864fb | 233 | { |
c3de4d92 PA |
234 | struct thread_info *thread = (struct thread_info *) entry; |
235 | win32_thread_info *th = (win32_thread_info *) inferior_target_data (thread); | |
b80864fb | 236 | |
c3de4d92 | 237 | remove_thread (thread); |
b80864fb DJ |
238 | CloseHandle (th->h); |
239 | free (th); | |
240 | } | |
241 | ||
242 | /* Delete a thread from the list of threads. */ | |
243 | static void | |
95954743 | 244 | child_delete_thread (DWORD pid, DWORD tid) |
b80864fb DJ |
245 | { |
246 | struct inferior_list_entry *thread; | |
95954743 | 247 | ptid_t ptid; |
b80864fb DJ |
248 | |
249 | /* If the last thread is exiting, just return. */ | |
649ebbca | 250 | if (one_inferior_p (&all_threads)) |
b80864fb DJ |
251 | return; |
252 | ||
95954743 PA |
253 | ptid = ptid_build (pid, tid, 0); |
254 | thread = find_inferior_id (&all_threads, ptid); | |
b80864fb DJ |
255 | if (thread == NULL) |
256 | return; | |
257 | ||
258 | delete_thread_info (thread); | |
259 | } | |
260 | ||
aa5ca48f DE |
261 | /* These watchpoint related wrapper functions simply pass on the function call |
262 | if the low target has registered a corresponding function. */ | |
263 | ||
264 | static int | |
802e8e6d PA |
265 | win32_supports_z_point_type (char z_type) |
266 | { | |
267 | return (the_low_target.supports_z_point_type != NULL | |
268 | && the_low_target.supports_z_point_type (z_type)); | |
269 | } | |
270 | ||
271 | static int | |
272 | win32_insert_point (enum raw_bkpt_type type, CORE_ADDR addr, | |
273 | int size, struct raw_breakpoint *bp) | |
aa5ca48f DE |
274 | { |
275 | if (the_low_target.insert_point != NULL) | |
802e8e6d | 276 | return the_low_target.insert_point (type, addr, size, bp); |
aa5ca48f DE |
277 | else |
278 | /* Unsupported (see target.h). */ | |
279 | return 1; | |
280 | } | |
281 | ||
282 | static int | |
802e8e6d PA |
283 | win32_remove_point (enum raw_bkpt_type type, CORE_ADDR addr, |
284 | int size, struct raw_breakpoint *bp) | |
aa5ca48f DE |
285 | { |
286 | if (the_low_target.remove_point != NULL) | |
802e8e6d | 287 | return the_low_target.remove_point (type, addr, size, bp); |
aa5ca48f DE |
288 | else |
289 | /* Unsupported (see target.h). */ | |
290 | return 1; | |
291 | } | |
292 | ||
293 | static int | |
294 | win32_stopped_by_watchpoint (void) | |
295 | { | |
296 | if (the_low_target.stopped_by_watchpoint != NULL) | |
297 | return the_low_target.stopped_by_watchpoint (); | |
298 | else | |
299 | return 0; | |
300 | } | |
301 | ||
302 | static CORE_ADDR | |
303 | win32_stopped_data_address (void) | |
304 | { | |
305 | if (the_low_target.stopped_data_address != NULL) | |
306 | return the_low_target.stopped_data_address (); | |
307 | else | |
308 | return 0; | |
309 | } | |
310 | ||
311 | ||
b80864fb DJ |
312 | /* Transfer memory from/to the debugged process. */ |
313 | static int | |
314 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
315 | int write, struct target_ops *target) | |
316 | { | |
cee83bcb PM |
317 | BOOL success; |
318 | SIZE_T done = 0; | |
319 | DWORD lasterror = 0; | |
e8f0053d | 320 | uintptr_t addr = (uintptr_t) memaddr; |
b80864fb DJ |
321 | |
322 | if (write) | |
323 | { | |
cee83bcb PM |
324 | success = WriteProcessMemory (current_process_handle, (LPVOID) addr, |
325 | (LPCVOID) our, len, &done); | |
326 | if (!success) | |
327 | lasterror = GetLastError (); | |
b80864fb DJ |
328 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); |
329 | } | |
330 | else | |
331 | { | |
cee83bcb PM |
332 | success = ReadProcessMemory (current_process_handle, (LPCVOID) addr, |
333 | (LPVOID) our, len, &done); | |
334 | if (!success) | |
335 | lasterror = GetLastError (); | |
b80864fb | 336 | } |
cee83bcb PM |
337 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
338 | return done; | |
339 | else | |
340 | return success ? done : -1; | |
b80864fb DJ |
341 | } |
342 | ||
ed50f18f | 343 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
344 | state. */ |
345 | static void | |
346 | child_init_thread_list (void) | |
347 | { | |
348 | for_each_inferior (&all_threads, delete_thread_info); | |
349 | } | |
350 | ||
f25b3fc3 JB |
351 | /* Zero during the child initialization phase, and nonzero otherwise. */ |
352 | ||
353 | static int child_initialization_done = 0; | |
354 | ||
b80864fb | 355 | static void |
95954743 | 356 | do_initial_child_stuff (HANDLE proch, DWORD pid, int attached) |
b80864fb | 357 | { |
3aee8918 PA |
358 | struct process_info *proc; |
359 | ||
a493e3e2 | 360 | last_sig = GDB_SIGNAL_0; |
b80864fb | 361 | |
5ac588cf PA |
362 | current_process_handle = proch; |
363 | current_process_id = pid; | |
364 | main_thread_id = 0; | |
365 | ||
366 | soft_interrupt_requested = 0; | |
367 | faked_breakpoint = 0; | |
368 | ||
b80864fb DJ |
369 | memset (¤t_event, 0, sizeof (current_event)); |
370 | ||
3aee8918 PA |
371 | proc = add_process (pid, attached); |
372 | proc->tdesc = win32_tdesc; | |
b80864fb | 373 | child_init_thread_list (); |
f25b3fc3 | 374 | child_initialization_done = 0; |
ed50f18f PA |
375 | |
376 | if (the_low_target.initial_stuff != NULL) | |
377 | (*the_low_target.initial_stuff) (); | |
4210d83e PA |
378 | |
379 | cached_status.kind = TARGET_WAITKIND_IGNORE; | |
380 | ||
381 | /* Flush all currently pending debug events (thread and dll list) up | |
382 | to the initial breakpoint. */ | |
383 | while (1) | |
384 | { | |
385 | struct target_waitstatus status; | |
386 | ||
387 | win32_wait (minus_one_ptid, &status, 0); | |
388 | ||
389 | /* Note win32_wait doesn't return thread events. */ | |
390 | if (status.kind != TARGET_WAITKIND_LOADED) | |
391 | { | |
392 | cached_status = status; | |
393 | break; | |
394 | } | |
395 | ||
396 | { | |
397 | struct thread_resume resume; | |
398 | ||
399 | resume.thread = minus_one_ptid; | |
400 | resume.kind = resume_continue; | |
401 | resume.sig = 0; | |
402 | ||
403 | win32_resume (&resume, 1); | |
404 | } | |
405 | } | |
379a5e2d JB |
406 | |
407 | #ifndef _WIN32_WCE | |
f25b3fc3 JB |
408 | /* Now that the inferior has been started and all DLLs have been mapped, |
409 | we can iterate over all DLLs and load them in. | |
410 | ||
411 | We avoid doing it any earlier because, on certain versions of Windows, | |
412 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
413 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
414 | include the DLL name, preventing us from creating an associated SO. | |
415 | A possible explanation is that ntdll.dll might be mapped before | |
416 | the SO info gets created by the Windows system -- ntdll.dll is | |
417 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
418 | do not seem to suffer from that problem. | |
419 | ||
420 | Rather than try to work around this sort of issue, it is much | |
421 | simpler to just ignore DLL load/unload events during the startup | |
422 | phase, and then process them all in one batch now. */ | |
423 | win32_add_all_dlls (); | |
379a5e2d | 424 | #endif |
f25b3fc3 JB |
425 | |
426 | child_initialization_done = 1; | |
b80864fb DJ |
427 | } |
428 | ||
429 | /* Resume all artificially suspended threads if we are continuing | |
430 | execution. */ | |
431 | static int | |
432 | continue_one_thread (struct inferior_list_entry *this_thread, void *id_ptr) | |
433 | { | |
434 | struct thread_info *thread = (struct thread_info *) this_thread; | |
435 | int thread_id = * (int *) id_ptr; | |
c3de4d92 | 436 | win32_thread_info *th = (win32_thread_info *) inferior_target_data (thread); |
b80864fb | 437 | |
a2abc7de | 438 | if (thread_id == -1 || thread_id == th->tid) |
b80864fb | 439 | { |
a2abc7de | 440 | win32_prepare_to_resume (th); |
34b34921 | 441 | |
a2abc7de | 442 | if (th->suspended) |
c436e841 | 443 | { |
a2abc7de PA |
444 | if (th->context.ContextFlags) |
445 | { | |
446 | win32_set_thread_context (th); | |
447 | th->context.ContextFlags = 0; | |
448 | } | |
449 | ||
450 | if (ResumeThread (th->h) == (DWORD) -1) | |
451 | { | |
452 | DWORD err = GetLastError (); | |
453 | OUTMSG (("warning: ResumeThread failed in continue_one_thread, " | |
454 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
455 | } | |
456 | th->suspended = 0; | |
c436e841 | 457 | } |
b80864fb DJ |
458 | } |
459 | ||
460 | return 0; | |
461 | } | |
462 | ||
463 | static BOOL | |
464 | child_continue (DWORD continue_status, int thread_id) | |
465 | { | |
4d5d1aaa PA |
466 | /* The inferior will only continue after the ContinueDebugEvent |
467 | call. */ | |
468 | find_inferior (&all_threads, continue_one_thread, &thread_id); | |
469 | faked_breakpoint = 0; | |
b80864fb | 470 | |
4d5d1aaa PA |
471 | if (!ContinueDebugEvent (current_event.dwProcessId, |
472 | current_event.dwThreadId, | |
473 | continue_status)) | |
474 | return FALSE; | |
b80864fb | 475 | |
4d5d1aaa | 476 | return TRUE; |
b80864fb DJ |
477 | } |
478 | ||
b80864fb DJ |
479 | /* Fetch register(s) from the current thread context. */ |
480 | static void | |
442ea881 | 481 | child_fetch_inferior_registers (struct regcache *regcache, int r) |
b80864fb DJ |
482 | { |
483 | int regno; | |
0bfdf32f | 484 | win32_thread_info *th = thread_rec (current_thread_ptid (), TRUE); |
4463ce24 | 485 | if (r == -1 || r > NUM_REGS) |
442ea881 | 486 | child_fetch_inferior_registers (regcache, NUM_REGS); |
b80864fb DJ |
487 | else |
488 | for (regno = 0; regno < r; regno++) | |
442ea881 | 489 | (*the_low_target.fetch_inferior_register) (regcache, th, regno); |
b80864fb DJ |
490 | } |
491 | ||
492 | /* Store a new register value into the current thread context. We don't | |
493 | change the program's context until later, when we resume it. */ | |
494 | static void | |
442ea881 | 495 | child_store_inferior_registers (struct regcache *regcache, int r) |
b80864fb DJ |
496 | { |
497 | int regno; | |
0bfdf32f | 498 | win32_thread_info *th = thread_rec (current_thread_ptid (), TRUE); |
b80864fb | 499 | if (r == -1 || r == 0 || r > NUM_REGS) |
442ea881 | 500 | child_store_inferior_registers (regcache, NUM_REGS); |
b80864fb DJ |
501 | else |
502 | for (regno = 0; regno < r; regno++) | |
442ea881 | 503 | (*the_low_target.store_inferior_register) (regcache, th, regno); |
b80864fb DJ |
504 | } |
505 | ||
ed50f18f PA |
506 | /* Map the Windows error number in ERROR to a locale-dependent error |
507 | message string and return a pointer to it. Typically, the values | |
508 | for ERROR come from GetLastError. | |
509 | ||
510 | The string pointed to shall not be modified by the application, | |
511 | but may be overwritten by a subsequent call to strwinerror | |
512 | ||
513 | The strwinerror function does not change the current setting | |
514 | of GetLastError. */ | |
515 | ||
516 | char * | |
517 | strwinerror (DWORD error) | |
518 | { | |
519 | static char buf[1024]; | |
520 | TCHAR *msgbuf; | |
521 | DWORD lasterr = GetLastError (); | |
522 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
523 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
524 | NULL, | |
525 | error, | |
526 | 0, /* Default language */ | |
c3de4d92 | 527 | (LPTSTR) &msgbuf, |
ed50f18f PA |
528 | 0, |
529 | NULL); | |
530 | if (chars != 0) | |
531 | { | |
532 | /* If there is an \r\n appended, zap it. */ | |
533 | if (chars >= 2 | |
534 | && msgbuf[chars - 2] == '\r' | |
535 | && msgbuf[chars - 1] == '\n') | |
536 | { | |
537 | chars -= 2; | |
538 | msgbuf[chars] = 0; | |
539 | } | |
540 | ||
541 | if (chars > ((COUNTOF (buf)) - 1)) | |
542 | { | |
543 | chars = COUNTOF (buf) - 1; | |
544 | msgbuf [chars] = 0; | |
545 | } | |
546 | ||
547 | #ifdef UNICODE | |
548 | wcstombs (buf, msgbuf, chars + 1); | |
549 | #else | |
550 | strncpy (buf, msgbuf, chars + 1); | |
551 | #endif | |
552 | LocalFree (msgbuf); | |
553 | } | |
554 | else | |
dfe07582 | 555 | sprintf (buf, "unknown win32 error (%u)", (unsigned) error); |
ed50f18f PA |
556 | |
557 | SetLastError (lasterr); | |
558 | return buf; | |
559 | } | |
560 | ||
aec18585 PA |
561 | static BOOL |
562 | create_process (const char *program, char *args, | |
563 | DWORD flags, PROCESS_INFORMATION *pi) | |
564 | { | |
565 | BOOL ret; | |
566 | ||
567 | #ifdef _WIN32_WCE | |
568 | wchar_t *p, *wprogram, *wargs; | |
569 | size_t argslen; | |
570 | ||
571 | wprogram = alloca ((strlen (program) + 1) * sizeof (wchar_t)); | |
572 | mbstowcs (wprogram, program, strlen (program) + 1); | |
573 | ||
574 | for (p = wprogram; *p; ++p) | |
575 | if (L'/' == *p) | |
576 | *p = L'\\'; | |
577 | ||
578 | argslen = strlen (args); | |
579 | wargs = alloca ((argslen + 1) * sizeof (wchar_t)); | |
580 | mbstowcs (wargs, args, argslen + 1); | |
581 | ||
582 | ret = CreateProcessW (wprogram, /* image name */ | |
1b3f6016 PA |
583 | wargs, /* command line */ |
584 | NULL, /* security, not supported */ | |
585 | NULL, /* thread, not supported */ | |
586 | FALSE, /* inherit handles, not supported */ | |
587 | flags, /* start flags */ | |
588 | NULL, /* environment, not supported */ | |
589 | NULL, /* current directory, not supported */ | |
590 | NULL, /* start info, not supported */ | |
591 | pi); /* proc info */ | |
aec18585 PA |
592 | #else |
593 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; | |
594 | ||
595 | ret = CreateProcessA (program, /* image name */ | |
596 | args, /* command line */ | |
597 | NULL, /* security */ | |
598 | NULL, /* thread */ | |
599 | TRUE, /* inherit handles */ | |
600 | flags, /* start flags */ | |
601 | NULL, /* environment */ | |
602 | NULL, /* current directory */ | |
603 | &si, /* start info */ | |
604 | pi); /* proc info */ | |
605 | #endif | |
606 | ||
607 | return ret; | |
608 | } | |
609 | ||
b80864fb DJ |
610 | /* Start a new process. |
611 | PROGRAM is a path to the program to execute. | |
612 | ARGS is a standard NULL-terminated array of arguments, | |
613 | to be passed to the inferior as ``argv''. | |
614 | Returns the new PID on success, -1 on failure. Registers the new | |
615 | process with the process list. */ | |
616 | static int | |
617 | win32_create_inferior (char *program, char **program_args) | |
618 | { | |
619 | #ifndef USE_WIN32API | |
d8d2a3ee | 620 | char real_path[PATH_MAX]; |
b80864fb DJ |
621 | char *orig_path, *new_path, *path_ptr; |
622 | #endif | |
b80864fb DJ |
623 | BOOL ret; |
624 | DWORD flags; | |
625 | char *args; | |
626 | int argslen; | |
627 | int argc; | |
ed50f18f | 628 | PROCESS_INFORMATION pi; |
aec18585 | 629 | DWORD err; |
b80864fb | 630 | |
d97903b2 PA |
631 | /* win32_wait needs to know we're not attaching. */ |
632 | attaching = 0; | |
633 | ||
b80864fb DJ |
634 | if (!program) |
635 | error ("No executable specified, specify executable to debug.\n"); | |
636 | ||
b80864fb DJ |
637 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
638 | ||
639 | #ifndef USE_WIN32API | |
640 | orig_path = NULL; | |
641 | path_ptr = getenv ("PATH"); | |
642 | if (path_ptr) | |
643 | { | |
81239425 | 644 | int size = cygwin_conv_path_list (CCP_POSIX_TO_WIN_A, path_ptr, NULL, 0); |
b80864fb | 645 | orig_path = alloca (strlen (path_ptr) + 1); |
81239425 | 646 | new_path = alloca (size); |
b80864fb | 647 | strcpy (orig_path, path_ptr); |
81239425 | 648 | cygwin_conv_path_list (CCP_POSIX_TO_WIN_A, path_ptr, new_path, size); |
b80864fb | 649 | setenv ("PATH", new_path, 1); |
81239425 | 650 | } |
d8d2a3ee | 651 | cygwin_conv_path (CCP_POSIX_TO_WIN_A, program, real_path, PATH_MAX); |
b80864fb DJ |
652 | program = real_path; |
653 | #endif | |
654 | ||
ed50f18f | 655 | argslen = 1; |
b80864fb DJ |
656 | for (argc = 1; program_args[argc]; argc++) |
657 | argslen += strlen (program_args[argc]) + 1; | |
c3de4d92 | 658 | args = (char *) alloca (argslen); |
ed50f18f | 659 | args[0] = '\0'; |
b80864fb DJ |
660 | for (argc = 1; program_args[argc]; argc++) |
661 | { | |
662 | /* FIXME: Can we do better about quoting? How does Cygwin | |
1b3f6016 | 663 | handle this? */ |
b80864fb DJ |
664 | strcat (args, " "); |
665 | strcat (args, program_args[argc]); | |
666 | } | |
ed50f18f | 667 | OUTMSG2 (("Command line is \"%s\"\n", args)); |
b80864fb | 668 | |
ed50f18f | 669 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 670 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 671 | #endif |
b80864fb | 672 | |
aec18585 PA |
673 | ret = create_process (program, args, flags, &pi); |
674 | err = GetLastError (); | |
675 | if (!ret && err == ERROR_FILE_NOT_FOUND) | |
676 | { | |
c3de4d92 | 677 | char *exename = (char *) alloca (strlen (program) + 5); |
aec18585 PA |
678 | strcat (strcpy (exename, program), ".exe"); |
679 | ret = create_process (exename, args, flags, &pi); | |
680 | err = GetLastError (); | |
681 | } | |
b80864fb DJ |
682 | |
683 | #ifndef USE_WIN32API | |
684 | if (orig_path) | |
685 | setenv ("PATH", orig_path, 1); | |
686 | #endif | |
687 | ||
688 | if (!ret) | |
689 | { | |
ed50f18f PA |
690 | error ("Error creating process \"%s%s\", (error %d): %s\n", |
691 | program, args, (int) err, strwinerror (err)); | |
b80864fb DJ |
692 | } |
693 | else | |
694 | { | |
695 | OUTMSG2 (("Process created: %s\n", (char *) args)); | |
696 | } | |
697 | ||
ed50f18f PA |
698 | #ifndef _WIN32_WCE |
699 | /* On Windows CE this handle can't be closed. The OS reuses | |
700 | it in the debug events, while the 9x/NT versions of Windows | |
701 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 702 | CloseHandle (pi.hThread); |
ed50f18f | 703 | #endif |
b80864fb | 704 | |
95954743 | 705 | do_initial_child_stuff (pi.hProcess, pi.dwProcessId, 0); |
b80864fb DJ |
706 | |
707 | return current_process_id; | |
708 | } | |
709 | ||
710 | /* Attach to a running process. | |
711 | PID is the process ID to attach to, specified by the user | |
712 | or a higher layer. */ | |
713 | static int | |
714 | win32_attach (unsigned long pid) | |
715 | { | |
5ca906e6 | 716 | HANDLE h; |
bf914831 | 717 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; |
5ca906e6 | 718 | DWORD err; |
ed50f18f PA |
719 | #ifdef _WIN32_WCE |
720 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
721 | #else | |
722 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
723 | #endif | |
bf914831 | 724 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); |
b80864fb | 725 | |
5ca906e6 PA |
726 | h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
727 | if (h != NULL) | |
1d5315fe | 728 | { |
5ca906e6 PA |
729 | if (DebugActiveProcess (pid)) |
730 | { | |
731 | if (DebugSetProcessKillOnExit != NULL) | |
732 | DebugSetProcessKillOnExit (FALSE); | |
733 | ||
d97903b2 | 734 | /* win32_wait needs to know we're attaching. */ |
1b3f6016 | 735 | attaching = 1; |
95954743 | 736 | do_initial_child_stuff (h, pid, 1); |
5ca906e6 PA |
737 | return 0; |
738 | } | |
739 | ||
740 | CloseHandle (h); | |
b80864fb DJ |
741 | } |
742 | ||
5ca906e6 PA |
743 | err = GetLastError (); |
744 | error ("Attach to process failed (error %d): %s\n", | |
745 | (int) err, strwinerror (err)); | |
b80864fb DJ |
746 | } |
747 | ||
bce7165d PA |
748 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
749 | static void | |
c0879059 | 750 | handle_output_debug_string (void) |
bce7165d PA |
751 | { |
752 | #define READ_BUFFER_LEN 1024 | |
753 | CORE_ADDR addr; | |
754 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
755 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
756 | ||
757 | if (nbytes == 0) | |
758 | return; | |
759 | ||
760 | if (nbytes > READ_BUFFER_LEN) | |
761 | nbytes = READ_BUFFER_LEN; | |
762 | ||
763 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
764 | ||
765 | if (current_event.u.DebugString.fUnicode) | |
766 | { | |
767 | /* The event tells us how many bytes, not chars, even | |
1b3f6016 | 768 | in Unicode. */ |
bce7165d PA |
769 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; |
770 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
771 | return; | |
772 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
773 | } | |
774 | else | |
775 | { | |
776 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
777 | return; | |
778 | } | |
779 | ||
61012eef | 780 | if (!startswith (s, "cYg")) |
45e2715e PA |
781 | { |
782 | if (!server_waiting) | |
783 | { | |
784 | OUTMSG2(("%s", s)); | |
785 | return; | |
786 | } | |
787 | ||
788 | monitor_output (s); | |
789 | } | |
bce7165d PA |
790 | #undef READ_BUFFER_LEN |
791 | } | |
792 | ||
5ac588cf PA |
793 | static void |
794 | win32_clear_inferiors (void) | |
795 | { | |
796 | if (current_process_handle != NULL) | |
797 | CloseHandle (current_process_handle); | |
798 | ||
799 | for_each_inferior (&all_threads, delete_thread_info); | |
800 | clear_inferiors (); | |
801 | } | |
802 | ||
b80864fb | 803 | /* Kill all inferiors. */ |
95954743 PA |
804 | static int |
805 | win32_kill (int pid) | |
b80864fb | 806 | { |
95954743 PA |
807 | struct process_info *process; |
808 | ||
9d606399 | 809 | if (current_process_handle == NULL) |
95954743 | 810 | return -1; |
9d606399 | 811 | |
b80864fb DJ |
812 | TerminateProcess (current_process_handle, 0); |
813 | for (;;) | |
814 | { | |
815 | if (!child_continue (DBG_CONTINUE, -1)) | |
816 | break; | |
817 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
818 | break; | |
819 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
820 | break; | |
bce7165d | 821 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
c0879059 | 822 | handle_output_debug_string (); |
b80864fb | 823 | } |
ed50f18f | 824 | |
5ac588cf | 825 | win32_clear_inferiors (); |
95954743 PA |
826 | |
827 | process = find_process_pid (pid); | |
828 | remove_process (process); | |
829 | return 0; | |
b80864fb DJ |
830 | } |
831 | ||
95954743 | 832 | /* Detach from inferior PID. */ |
444d6139 | 833 | static int |
95954743 | 834 | win32_detach (int pid) |
b80864fb | 835 | { |
95954743 | 836 | struct process_info *process; |
bf914831 PA |
837 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
838 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
839 | #ifdef _WIN32_WCE |
840 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
841 | #else | |
842 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
843 | #endif | |
bf914831 PA |
844 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
845 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 846 | |
444d6139 PA |
847 | if (DebugSetProcessKillOnExit == NULL |
848 | || DebugActiveProcessStop == NULL) | |
849 | return -1; | |
b80864fb | 850 | |
444d6139 PA |
851 | { |
852 | struct thread_resume resume; | |
95954743 | 853 | resume.thread = minus_one_ptid; |
bd99dc85 | 854 | resume.kind = resume_continue; |
444d6139 | 855 | resume.sig = 0; |
2bd7c093 | 856 | win32_resume (&resume, 1); |
444d6139 PA |
857 | } |
858 | ||
859 | if (!DebugActiveProcessStop (current_process_id)) | |
5ac588cf PA |
860 | return -1; |
861 | ||
444d6139 | 862 | DebugSetProcessKillOnExit (FALSE); |
95954743 PA |
863 | process = find_process_pid (pid); |
864 | remove_process (process); | |
444d6139 | 865 | |
5ac588cf | 866 | win32_clear_inferiors (); |
444d6139 PA |
867 | return 0; |
868 | } | |
869 | ||
505106cd PA |
870 | static void |
871 | win32_mourn (struct process_info *process) | |
872 | { | |
873 | remove_process (process); | |
874 | } | |
875 | ||
444d6139 PA |
876 | /* Wait for inferiors to end. */ |
877 | static void | |
95954743 | 878 | win32_join (int pid) |
444d6139 | 879 | { |
95954743 | 880 | HANDLE h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
5ac588cf PA |
881 | if (h != NULL) |
882 | { | |
883 | WaitForSingleObject (h, INFINITE); | |
884 | CloseHandle (h); | |
885 | } | |
b80864fb DJ |
886 | } |
887 | ||
888 | /* Return 1 iff the thread with thread ID TID is alive. */ | |
889 | static int | |
95954743 | 890 | win32_thread_alive (ptid_t ptid) |
b80864fb DJ |
891 | { |
892 | int res; | |
893 | ||
894 | /* Our thread list is reliable; don't bother to poll target | |
895 | threads. */ | |
95954743 | 896 | if (find_inferior_id (&all_threads, ptid) != NULL) |
b80864fb DJ |
897 | res = 1; |
898 | else | |
899 | res = 0; | |
900 | return res; | |
901 | } | |
902 | ||
903 | /* Resume the inferior process. RESUME_INFO describes how we want | |
904 | to resume. */ | |
905 | static void | |
2bd7c093 | 906 | win32_resume (struct thread_resume *resume_info, size_t n) |
b80864fb DJ |
907 | { |
908 | DWORD tid; | |
2ea28649 | 909 | enum gdb_signal sig; |
b80864fb | 910 | int step; |
41093d81 | 911 | win32_thread_info *th; |
b80864fb | 912 | DWORD continue_status = DBG_CONTINUE; |
95954743 | 913 | ptid_t ptid; |
b80864fb DJ |
914 | |
915 | /* This handles the very limited set of resume packets that GDB can | |
916 | currently produce. */ | |
917 | ||
95954743 | 918 | if (n == 1 && ptid_equal (resume_info[0].thread, minus_one_ptid)) |
b80864fb | 919 | tid = -1; |
2bd7c093 | 920 | else if (n > 1) |
b80864fb DJ |
921 | tid = -1; |
922 | else | |
923 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
924 | the Windows resume code do the right thing for thread switching. */ | |
925 | tid = current_event.dwThreadId; | |
926 | ||
95954743 | 927 | if (!ptid_equal (resume_info[0].thread, minus_one_ptid)) |
b80864fb | 928 | { |
ce7715e2 | 929 | sig = gdb_signal_from_host (resume_info[0].sig); |
bd99dc85 | 930 | step = resume_info[0].kind == resume_step; |
b80864fb DJ |
931 | } |
932 | else | |
933 | { | |
ce7715e2 | 934 | sig = GDB_SIGNAL_0; |
b80864fb DJ |
935 | step = 0; |
936 | } | |
937 | ||
a493e3e2 | 938 | if (sig != GDB_SIGNAL_0) |
b80864fb DJ |
939 | { |
940 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
941 | { | |
ce7715e2 PA |
942 | OUTMSG (("Cannot continue with signal %s here.\n", |
943 | gdb_signal_to_string (sig))); | |
b80864fb DJ |
944 | } |
945 | else if (sig == last_sig) | |
946 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
947 | else | |
ce7715e2 PA |
948 | OUTMSG (("Can only continue with received signal %s.\n", |
949 | gdb_signal_to_string (last_sig))); | |
b80864fb DJ |
950 | } |
951 | ||
a493e3e2 | 952 | last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
953 | |
954 | /* Get context for the currently selected thread. */ | |
95954743 PA |
955 | ptid = debug_event_ptid (¤t_event); |
956 | th = thread_rec (ptid, FALSE); | |
b80864fb DJ |
957 | if (th) |
958 | { | |
a2abc7de PA |
959 | win32_prepare_to_resume (th); |
960 | ||
b80864fb DJ |
961 | if (th->context.ContextFlags) |
962 | { | |
b80864fb DJ |
963 | /* Move register values from the inferior into the thread |
964 | context structure. */ | |
965 | regcache_invalidate (); | |
966 | ||
967 | if (step) | |
ed50f18f PA |
968 | { |
969 | if (the_low_target.single_step != NULL) | |
970 | (*the_low_target.single_step) (th); | |
971 | else | |
972 | error ("Single stepping is not supported " | |
973 | "in this configuration.\n"); | |
974 | } | |
34b34921 | 975 | |
9c6c8194 | 976 | win32_set_thread_context (th); |
b80864fb DJ |
977 | th->context.ContextFlags = 0; |
978 | } | |
979 | } | |
980 | ||
981 | /* Allow continuing with the same signal that interrupted us. | |
982 | Otherwise complain. */ | |
983 | ||
984 | child_continue (continue_status, tid); | |
985 | } | |
986 | ||
255e7678 DJ |
987 | static void |
988 | win32_add_one_solib (const char *name, CORE_ADDR load_addr) | |
989 | { | |
990 | char buf[MAX_PATH + 1]; | |
991 | char buf2[MAX_PATH + 1]; | |
992 | ||
993 | #ifdef _WIN32_WCE | |
994 | WIN32_FIND_DATA w32_fd; | |
995 | WCHAR wname[MAX_PATH + 1]; | |
996 | mbstowcs (wname, name, MAX_PATH); | |
997 | HANDLE h = FindFirstFile (wname, &w32_fd); | |
998 | #else | |
999 | WIN32_FIND_DATAA w32_fd; | |
1000 | HANDLE h = FindFirstFileA (name, &w32_fd); | |
1001 | #endif | |
1002 | ||
850a0f76 JB |
1003 | /* The symbols in a dll are offset by 0x1000, which is the |
1004 | offset from 0 of the first byte in an image - because | |
1005 | of the file header and the section alignment. */ | |
1006 | load_addr += 0x1000; | |
1007 | ||
255e7678 DJ |
1008 | if (h == INVALID_HANDLE_VALUE) |
1009 | strcpy (buf, name); | |
1010 | else | |
1011 | { | |
1012 | FindClose (h); | |
1013 | strcpy (buf, name); | |
1014 | #ifndef _WIN32_WCE | |
1015 | { | |
1016 | char cwd[MAX_PATH + 1]; | |
1017 | char *p; | |
1018 | if (GetCurrentDirectoryA (MAX_PATH + 1, cwd)) | |
1019 | { | |
1020 | p = strrchr (buf, '\\'); | |
1021 | if (p) | |
1022 | p[1] = '\0'; | |
1023 | SetCurrentDirectoryA (buf); | |
1024 | GetFullPathNameA (w32_fd.cFileName, MAX_PATH, buf, &p); | |
1025 | SetCurrentDirectoryA (cwd); | |
1026 | } | |
1027 | } | |
1028 | #endif | |
1029 | } | |
1030 | ||
cf6e3471 PA |
1031 | #ifndef _WIN32_WCE |
1032 | if (strcasecmp (buf, "ntdll.dll") == 0) | |
1033 | { | |
1034 | GetSystemDirectoryA (buf, sizeof (buf)); | |
1035 | strcat (buf, "\\ntdll.dll"); | |
1036 | } | |
1037 | #endif | |
1038 | ||
255e7678 | 1039 | #ifdef __CYGWIN__ |
81239425 | 1040 | cygwin_conv_path (CCP_WIN_A_TO_POSIX, buf, buf2, sizeof (buf2)); |
255e7678 DJ |
1041 | #else |
1042 | strcpy (buf2, buf); | |
1043 | #endif | |
1044 | ||
1045 | loaded_dll (buf2, load_addr); | |
1046 | } | |
1047 | ||
1048 | static char * | |
1049 | get_image_name (HANDLE h, void *address, int unicode) | |
1050 | { | |
1051 | static char buf[(2 * MAX_PATH) + 1]; | |
1052 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
1053 | char *address_ptr; | |
1054 | int len = 0; | |
1055 | char b[2]; | |
e8f0053d | 1056 | SIZE_T done; |
255e7678 DJ |
1057 | |
1058 | /* Attempt to read the name of the dll that was detected. | |
1059 | This is documented to work only when actively debugging | |
1060 | a program. It will not work for attached processes. */ | |
1061 | if (address == NULL) | |
1062 | return NULL; | |
1063 | ||
1064 | #ifdef _WIN32_WCE | |
1065 | /* Windows CE reports the address of the image name, | |
1066 | instead of an address of a pointer into the image name. */ | |
1067 | address_ptr = address; | |
1068 | #else | |
1069 | /* See if we could read the address of a string, and that the | |
1070 | address isn't null. */ | |
1071 | if (!ReadProcessMemory (h, address, &address_ptr, | |
1072 | sizeof (address_ptr), &done) | |
1073 | || done != sizeof (address_ptr) | |
1074 | || !address_ptr) | |
1075 | return NULL; | |
1076 | #endif | |
1077 | ||
1078 | /* Find the length of the string */ | |
1079 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) | |
1080 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
1081 | continue; | |
1082 | ||
1083 | if (!unicode) | |
1084 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
1085 | else | |
1086 | { | |
8d749320 | 1087 | WCHAR *unicode_address = XALLOCAVEC (WCHAR, len); |
255e7678 DJ |
1088 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), |
1089 | &done); | |
1090 | ||
1091 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
1092 | } | |
1093 | ||
1094 | return buf; | |
1095 | } | |
1096 | ||
1097 | typedef BOOL (WINAPI *winapi_EnumProcessModules) (HANDLE, HMODULE *, | |
1098 | DWORD, LPDWORD); | |
1099 | typedef BOOL (WINAPI *winapi_GetModuleInformation) (HANDLE, HMODULE, | |
1100 | LPMODULEINFO, DWORD); | |
1101 | typedef DWORD (WINAPI *winapi_GetModuleFileNameExA) (HANDLE, HMODULE, | |
1102 | LPSTR, DWORD); | |
1103 | ||
1104 | static winapi_EnumProcessModules win32_EnumProcessModules; | |
1105 | static winapi_GetModuleInformation win32_GetModuleInformation; | |
1106 | static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA; | |
1107 | ||
1108 | static BOOL | |
1109 | load_psapi (void) | |
1110 | { | |
1111 | static int psapi_loaded = 0; | |
1112 | static HMODULE dll = NULL; | |
1113 | ||
1114 | if (!psapi_loaded) | |
1115 | { | |
1116 | psapi_loaded = 1; | |
1117 | dll = LoadLibrary (TEXT("psapi.dll")); | |
1118 | if (!dll) | |
1119 | return FALSE; | |
1120 | win32_EnumProcessModules = | |
1121 | GETPROCADDRESS (dll, EnumProcessModules); | |
1122 | win32_GetModuleInformation = | |
1123 | GETPROCADDRESS (dll, GetModuleInformation); | |
1124 | win32_GetModuleFileNameExA = | |
1125 | GETPROCADDRESS (dll, GetModuleFileNameExA); | |
1126 | } | |
1127 | ||
1128 | return (win32_EnumProcessModules != NULL | |
1129 | && win32_GetModuleInformation != NULL | |
1130 | && win32_GetModuleFileNameExA != NULL); | |
1131 | } | |
1132 | ||
379a5e2d | 1133 | #ifndef _WIN32_WCE |
649ebbca | 1134 | |
f25b3fc3 JB |
1135 | /* Iterate over all DLLs currently mapped by our inferior, and |
1136 | add them to our list of solibs. */ | |
379a5e2d JB |
1137 | |
1138 | static void | |
f25b3fc3 | 1139 | win32_add_all_dlls (void) |
379a5e2d | 1140 | { |
379a5e2d JB |
1141 | size_t i; |
1142 | HMODULE dh_buf[1]; | |
1143 | HMODULE *DllHandle = dh_buf; | |
1144 | DWORD cbNeeded; | |
1145 | BOOL ok; | |
1146 | ||
379a5e2d JB |
1147 | if (!load_psapi ()) |
1148 | return; | |
1149 | ||
1150 | cbNeeded = 0; | |
1151 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1152 | DllHandle, | |
1153 | sizeof (HMODULE), | |
1154 | &cbNeeded); | |
1155 | ||
1156 | if (!ok || !cbNeeded) | |
1157 | return; | |
1158 | ||
1159 | DllHandle = (HMODULE *) alloca (cbNeeded); | |
1160 | if (!DllHandle) | |
1161 | return; | |
1162 | ||
1163 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1164 | DllHandle, | |
1165 | cbNeeded, | |
1166 | &cbNeeded); | |
1167 | if (!ok) | |
1168 | return; | |
1169 | ||
f25b3fc3 | 1170 | for (i = 1; i < ((size_t) cbNeeded / sizeof (HMODULE)); i++) |
379a5e2d JB |
1171 | { |
1172 | MODULEINFO mi; | |
1173 | char dll_name[MAX_PATH]; | |
1174 | ||
1175 | if (!(*win32_GetModuleInformation) (current_process_handle, | |
1176 | DllHandle[i], | |
1177 | &mi, | |
1178 | sizeof (mi))) | |
1179 | continue; | |
1180 | if ((*win32_GetModuleFileNameExA) (current_process_handle, | |
1181 | DllHandle[i], | |
1182 | dll_name, | |
1183 | MAX_PATH) == 0) | |
1184 | continue; | |
850a0f76 | 1185 | win32_add_one_solib (dll_name, (CORE_ADDR) (uintptr_t) mi.lpBaseOfDll); |
379a5e2d JB |
1186 | } |
1187 | } | |
1188 | #endif | |
1189 | ||
255e7678 DJ |
1190 | typedef HANDLE (WINAPI *winapi_CreateToolhelp32Snapshot) (DWORD, DWORD); |
1191 | typedef BOOL (WINAPI *winapi_Module32First) (HANDLE, LPMODULEENTRY32); | |
1192 | typedef BOOL (WINAPI *winapi_Module32Next) (HANDLE, LPMODULEENTRY32); | |
1193 | ||
d763de10 | 1194 | /* Handle a DLL load event. |
255e7678 | 1195 | |
d763de10 JB |
1196 | This function assumes that this event did not occur during inferior |
1197 | initialization, where their event info may be incomplete (see | |
1198 | do_initial_child_stuff and win32_add_all_dlls for more info on | |
1199 | how we handle DLL loading during that phase). */ | |
255e7678 DJ |
1200 | |
1201 | static void | |
1202 | handle_load_dll (void) | |
1203 | { | |
1204 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
d763de10 | 1205 | char *dll_name; |
255e7678 | 1206 | |
d763de10 JB |
1207 | dll_name = get_image_name (current_process_handle, |
1208 | event->lpImageName, event->fUnicode); | |
255e7678 DJ |
1209 | if (!dll_name) |
1210 | return; | |
1211 | ||
850a0f76 | 1212 | win32_add_one_solib (dll_name, (CORE_ADDR) (uintptr_t) event->lpBaseOfDll); |
255e7678 DJ |
1213 | } |
1214 | ||
f25b3fc3 JB |
1215 | /* Handle a DLL unload event. |
1216 | ||
1217 | This function assumes that this event did not occur during inferior | |
1218 | initialization, where their event info may be incomplete (see | |
1219 | do_initial_child_stuff and win32_add_one_solib for more info | |
1220 | on how we handle DLL loading during that phase). */ | |
1221 | ||
255e7678 DJ |
1222 | static void |
1223 | handle_unload_dll (void) | |
1224 | { | |
1225 | CORE_ADDR load_addr = | |
e8f0053d | 1226 | (CORE_ADDR) (uintptr_t) current_event.u.UnloadDll.lpBaseOfDll; |
850a0f76 JB |
1227 | |
1228 | /* The symbols in a dll are offset by 0x1000, which is the | |
1229 | offset from 0 of the first byte in an image - because | |
1230 | of the file header and the section alignment. */ | |
255e7678 DJ |
1231 | load_addr += 0x1000; |
1232 | unloaded_dll (NULL, load_addr); | |
1233 | } | |
1234 | ||
34b34921 | 1235 | static void |
b80864fb DJ |
1236 | handle_exception (struct target_waitstatus *ourstatus) |
1237 | { | |
b80864fb DJ |
1238 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
1239 | ||
1240 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1241 | ||
b80864fb DJ |
1242 | switch (code) |
1243 | { | |
1244 | case EXCEPTION_ACCESS_VIOLATION: | |
1245 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
a493e3e2 | 1246 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
b80864fb DJ |
1247 | break; |
1248 | case STATUS_STACK_OVERFLOW: | |
1249 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
a493e3e2 | 1250 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
b80864fb DJ |
1251 | break; |
1252 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1253 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
a493e3e2 | 1254 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1255 | break; |
1256 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1257 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
a493e3e2 | 1258 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1259 | break; |
1260 | case STATUS_FLOAT_INEXACT_RESULT: | |
1261 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
a493e3e2 | 1262 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1263 | break; |
1264 | case STATUS_FLOAT_INVALID_OPERATION: | |
1265 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
a493e3e2 | 1266 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1267 | break; |
1268 | case STATUS_FLOAT_OVERFLOW: | |
1269 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
a493e3e2 | 1270 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1271 | break; |
1272 | case STATUS_FLOAT_STACK_CHECK: | |
1273 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
a493e3e2 | 1274 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1275 | break; |
1276 | case STATUS_FLOAT_UNDERFLOW: | |
1277 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
a493e3e2 | 1278 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1279 | break; |
1280 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
1281 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
a493e3e2 | 1282 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1283 | break; |
1284 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
1285 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
a493e3e2 | 1286 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1287 | break; |
1288 | case STATUS_INTEGER_OVERFLOW: | |
1289 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
a493e3e2 | 1290 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1291 | break; |
1292 | case EXCEPTION_BREAKPOINT: | |
1293 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
a493e3e2 | 1294 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
ed50f18f PA |
1295 | #ifdef _WIN32_WCE |
1296 | /* Remove the initial breakpoint. */ | |
1297 | check_breakpoints ((CORE_ADDR) (long) current_event | |
1b3f6016 | 1298 | .u.Exception.ExceptionRecord.ExceptionAddress); |
ed50f18f | 1299 | #endif |
b80864fb DJ |
1300 | break; |
1301 | case DBG_CONTROL_C: | |
1302 | OUTMSG2 (("DBG_CONTROL_C")); | |
a493e3e2 | 1303 | ourstatus->value.sig = GDB_SIGNAL_INT; |
b80864fb DJ |
1304 | break; |
1305 | case DBG_CONTROL_BREAK: | |
1306 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
a493e3e2 | 1307 | ourstatus->value.sig = GDB_SIGNAL_INT; |
b80864fb DJ |
1308 | break; |
1309 | case EXCEPTION_SINGLE_STEP: | |
1310 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
a493e3e2 | 1311 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1312 | break; |
1313 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
1314 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
a493e3e2 | 1315 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
b80864fb DJ |
1316 | break; |
1317 | case EXCEPTION_PRIV_INSTRUCTION: | |
1318 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
a493e3e2 | 1319 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
b80864fb DJ |
1320 | break; |
1321 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1322 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
a493e3e2 | 1323 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
b80864fb DJ |
1324 | break; |
1325 | default: | |
1326 | if (current_event.u.Exception.dwFirstChance) | |
34b34921 PA |
1327 | { |
1328 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1329 | return; | |
1330 | } | |
dfe07582 CV |
1331 | OUTMSG2 (("gdbserver: unknown target exception 0x%08x at 0x%s", |
1332 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1333 | phex_nz ((uintptr_t) current_event.u.Exception.ExceptionRecord. | |
1334 | ExceptionAddress, sizeof (uintptr_t)))); | |
a493e3e2 | 1335 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
b80864fb DJ |
1336 | break; |
1337 | } | |
1338 | OUTMSG2 (("\n")); | |
1339 | last_sig = ourstatus->value.sig; | |
b80864fb DJ |
1340 | } |
1341 | ||
4d5d1aaa | 1342 | |
34b34921 | 1343 | static void |
4d5d1aaa PA |
1344 | suspend_one_thread (struct inferior_list_entry *entry) |
1345 | { | |
1346 | struct thread_info *thread = (struct thread_info *) entry; | |
c3de4d92 | 1347 | win32_thread_info *th = (win32_thread_info *) inferior_target_data (thread); |
4d5d1aaa PA |
1348 | |
1349 | if (!th->suspended) | |
1350 | { | |
1351 | if (SuspendThread (th->h) == (DWORD) -1) | |
1352 | { | |
1353 | DWORD err = GetLastError (); | |
1354 | OUTMSG (("warning: SuspendThread failed in suspend_one_thread, " | |
1355 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
1356 | } | |
1357 | else | |
1358 | th->suspended = 1; | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | static void | |
1363 | fake_breakpoint_event (void) | |
b80864fb | 1364 | { |
4d5d1aaa | 1365 | OUTMSG2(("fake_breakpoint_event\n")); |
b80864fb | 1366 | |
4d5d1aaa PA |
1367 | faked_breakpoint = 1; |
1368 | ||
1369 | memset (¤t_event, 0, sizeof (current_event)); | |
1370 | current_event.dwThreadId = main_thread_id; | |
1371 | current_event.dwDebugEventCode = EXCEPTION_DEBUG_EVENT; | |
1372 | current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1373 | = EXCEPTION_BREAKPOINT; | |
1374 | ||
1375 | for_each_inferior (&all_threads, suspend_one_thread); | |
1376 | } | |
1377 | ||
b65d95c5 DJ |
1378 | #ifdef _WIN32_WCE |
1379 | static int | |
1380 | auto_delete_breakpoint (CORE_ADDR stop_pc) | |
1381 | { | |
1382 | return 1; | |
1383 | } | |
1384 | #endif | |
1385 | ||
4d5d1aaa PA |
1386 | /* Get the next event from the child. */ |
1387 | ||
1388 | static int | |
1389 | get_child_debug_event (struct target_waitstatus *ourstatus) | |
1390 | { | |
95954743 PA |
1391 | ptid_t ptid; |
1392 | ||
a493e3e2 | 1393 | last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
1394 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
1395 | ||
4d5d1aaa PA |
1396 | /* Check if GDB sent us an interrupt request. */ |
1397 | check_remote_input_interrupt_request (); | |
1398 | ||
1399 | if (soft_interrupt_requested) | |
1400 | { | |
1401 | soft_interrupt_requested = 0; | |
1402 | fake_breakpoint_event (); | |
1403 | goto gotevent; | |
1404 | } | |
1405 | ||
d97903b2 PA |
1406 | #ifndef _WIN32_WCE |
1407 | attaching = 0; | |
1408 | #else | |
1409 | if (attaching) | |
1410 | { | |
1411 | /* WinCE doesn't set an initial breakpoint automatically. To | |
1b3f6016 PA |
1412 | stop the inferior, we flush all currently pending debug |
1413 | events -- the thread list and the dll list are always | |
1414 | reported immediatelly without delay, then, we suspend all | |
1415 | threads and pretend we saw a trap at the current PC of the | |
1416 | main thread. | |
1417 | ||
1418 | Contrary to desktop Windows, Windows CE *does* report the dll | |
1419 | names on LOAD_DLL_DEBUG_EVENTs resulting from a | |
1420 | DebugActiveProcess call. This limits the way we can detect | |
1421 | if all the dlls have already been reported. If we get a real | |
1422 | debug event before leaving attaching, the worst that will | |
1423 | happen is the user will see a spurious breakpoint. */ | |
d97903b2 PA |
1424 | |
1425 | current_event.dwDebugEventCode = 0; | |
1426 | if (!WaitForDebugEvent (¤t_event, 0)) | |
1b3f6016 PA |
1427 | { |
1428 | OUTMSG2(("no attach events left\n")); | |
1429 | fake_breakpoint_event (); | |
1430 | attaching = 0; | |
1431 | } | |
d97903b2 | 1432 | else |
1b3f6016 | 1433 | OUTMSG2(("got attach event\n")); |
d97903b2 PA |
1434 | } |
1435 | else | |
1436 | #endif | |
1437 | { | |
1438 | /* Keep the wait time low enough for confortable remote | |
1b3f6016 PA |
1439 | interruption, but high enough so gdbserver doesn't become a |
1440 | bottleneck. */ | |
d97903b2 | 1441 | if (!WaitForDebugEvent (¤t_event, 250)) |
912cf4ba PA |
1442 | { |
1443 | DWORD e = GetLastError(); | |
1444 | ||
1445 | if (e == ERROR_PIPE_NOT_CONNECTED) | |
1446 | { | |
1447 | /* This will happen if the loader fails to succesfully | |
1448 | load the application, e.g., if the main executable | |
1449 | tries to pull in a non-existing export from a | |
1450 | DLL. */ | |
1451 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1452 | ourstatus->value.integer = 1; | |
1453 | return 1; | |
1454 | } | |
1455 | ||
1456 | return 0; | |
1457 | } | |
d97903b2 | 1458 | } |
4d5d1aaa PA |
1459 | |
1460 | gotevent: | |
b80864fb | 1461 | |
34b34921 | 1462 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
1463 | { |
1464 | case CREATE_THREAD_DEBUG_EVENT: | |
1465 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
dfe07582 | 1466 | "for pid=%u tid=%x)\n", |
b80864fb DJ |
1467 | (unsigned) current_event.dwProcessId, |
1468 | (unsigned) current_event.dwThreadId)); | |
1469 | ||
1470 | /* Record the existence of this thread. */ | |
95954743 PA |
1471 | child_add_thread (current_event.dwProcessId, |
1472 | current_event.dwThreadId, | |
711e434b PM |
1473 | current_event.u.CreateThread.hThread, |
1474 | current_event.u.CreateThread.lpThreadLocalBase); | |
b80864fb DJ |
1475 | break; |
1476 | ||
1477 | case EXIT_THREAD_DEBUG_EVENT: | |
1478 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
dfe07582 | 1479 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1480 | (unsigned) current_event.dwProcessId, |
1481 | (unsigned) current_event.dwThreadId)); | |
95954743 PA |
1482 | child_delete_thread (current_event.dwProcessId, |
1483 | current_event.dwThreadId); | |
aeeb81d1 | 1484 | |
0bfdf32f | 1485 | current_thread = (struct thread_info *) all_threads.head; |
aeeb81d1 | 1486 | return 1; |
b80864fb DJ |
1487 | |
1488 | case CREATE_PROCESS_DEBUG_EVENT: | |
1489 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
dfe07582 | 1490 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1491 | (unsigned) current_event.dwProcessId, |
1492 | (unsigned) current_event.dwThreadId)); | |
1493 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
1494 | ||
1495 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1496 | main_thread_id = current_event.dwThreadId; | |
1497 | ||
1498 | ourstatus->kind = TARGET_WAITKIND_EXECD; | |
1499 | ourstatus->value.execd_pathname = "Main executable"; | |
1500 | ||
1501 | /* Add the main thread. */ | |
95954743 PA |
1502 | child_add_thread (current_event.dwProcessId, |
1503 | main_thread_id, | |
711e434b PM |
1504 | current_event.u.CreateProcessInfo.hThread, |
1505 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
b80864fb | 1506 | |
95954743 | 1507 | ourstatus->value.related_pid = debug_event_ptid (¤t_event); |
ed50f18f | 1508 | #ifdef _WIN32_WCE |
d97903b2 PA |
1509 | if (!attaching) |
1510 | { | |
1511 | /* Windows CE doesn't set the initial breakpoint | |
1512 | automatically like the desktop versions of Windows do. | |
1513 | We add it explicitly here. It will be removed as soon as | |
1514 | it is hit. */ | |
1515 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
1516 | .CreateProcessInfo.lpStartAddress, | |
b65d95c5 | 1517 | auto_delete_breakpoint); |
d97903b2 | 1518 | } |
ed50f18f | 1519 | #endif |
b80864fb DJ |
1520 | break; |
1521 | ||
1522 | case EXIT_PROCESS_DEBUG_EVENT: | |
1523 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
dfe07582 | 1524 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1525 | (unsigned) current_event.dwProcessId, |
1526 | (unsigned) current_event.dwThreadId)); | |
1527 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1528 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
18aae699 | 1529 | child_continue (DBG_CONTINUE, -1); |
b80864fb | 1530 | CloseHandle (current_process_handle); |
9d606399 | 1531 | current_process_handle = NULL; |
b80864fb DJ |
1532 | break; |
1533 | ||
1534 | case LOAD_DLL_DEBUG_EVENT: | |
1535 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
dfe07582 | 1536 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1537 | (unsigned) current_event.dwProcessId, |
1538 | (unsigned) current_event.dwThreadId)); | |
1539 | CloseHandle (current_event.u.LoadDll.hFile); | |
f25b3fc3 JB |
1540 | if (! child_initialization_done) |
1541 | break; | |
255e7678 | 1542 | handle_load_dll (); |
b80864fb DJ |
1543 | |
1544 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
a493e3e2 | 1545 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1546 | break; |
1547 | ||
1548 | case UNLOAD_DLL_DEBUG_EVENT: | |
1549 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
dfe07582 | 1550 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1551 | (unsigned) current_event.dwProcessId, |
1552 | (unsigned) current_event.dwThreadId)); | |
f25b3fc3 JB |
1553 | if (! child_initialization_done) |
1554 | break; | |
255e7678 DJ |
1555 | handle_unload_dll (); |
1556 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
a493e3e2 | 1557 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1558 | break; |
1559 | ||
1560 | case EXCEPTION_DEBUG_EVENT: | |
1561 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
dfe07582 | 1562 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1563 | (unsigned) current_event.dwProcessId, |
1564 | (unsigned) current_event.dwThreadId)); | |
34b34921 | 1565 | handle_exception (ourstatus); |
b80864fb DJ |
1566 | break; |
1567 | ||
1568 | case OUTPUT_DEBUG_STRING_EVENT: | |
1569 | /* A message from the kernel (or Cygwin). */ | |
1570 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
dfe07582 | 1571 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1572 | (unsigned) current_event.dwProcessId, |
1573 | (unsigned) current_event.dwThreadId)); | |
c0879059 | 1574 | handle_output_debug_string (); |
b80864fb DJ |
1575 | break; |
1576 | ||
1577 | default: | |
1578 | OUTMSG2 (("gdbserver: kernel event unknown " | |
dfe07582 | 1579 | "for pid=%u tid=%x code=%x\n", |
b80864fb DJ |
1580 | (unsigned) current_event.dwProcessId, |
1581 | (unsigned) current_event.dwThreadId, | |
dfe07582 | 1582 | (unsigned) current_event.dwDebugEventCode)); |
b80864fb DJ |
1583 | break; |
1584 | } | |
1585 | ||
aeeb81d1 | 1586 | ptid = debug_event_ptid (¤t_event); |
0bfdf32f | 1587 | current_thread = |
95954743 | 1588 | (struct thread_info *) find_inferior_id (&all_threads, ptid); |
4d5d1aaa | 1589 | return 1; |
b80864fb DJ |
1590 | } |
1591 | ||
1592 | /* Wait for the inferior process to change state. | |
1593 | STATUS will be filled in with a response code to send to GDB. | |
1594 | Returns the signal which caused the process to stop. */ | |
95954743 PA |
1595 | static ptid_t |
1596 | win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus, int options) | |
b80864fb | 1597 | { |
442ea881 | 1598 | struct regcache *regcache; |
95954743 | 1599 | |
4210d83e PA |
1600 | if (cached_status.kind != TARGET_WAITKIND_IGNORE) |
1601 | { | |
1602 | /* The core always does a wait after creating the inferior, and | |
1603 | do_initial_child_stuff already ran the inferior to the | |
1604 | initial breakpoint (or an exit, if creating the process | |
1605 | fails). Report it now. */ | |
1606 | *ourstatus = cached_status; | |
1607 | cached_status.kind = TARGET_WAITKIND_IGNORE; | |
1608 | return debug_event_ptid (¤t_event); | |
1609 | } | |
1610 | ||
b80864fb DJ |
1611 | while (1) |
1612 | { | |
5b1c542e | 1613 | if (!get_child_debug_event (ourstatus)) |
4d5d1aaa | 1614 | continue; |
b80864fb | 1615 | |
5b1c542e | 1616 | switch (ourstatus->kind) |
b80864fb | 1617 | { |
34b34921 | 1618 | case TARGET_WAITKIND_EXITED: |
b80864fb | 1619 | OUTMSG2 (("Child exited with retcode = %x\n", |
5b1c542e | 1620 | ourstatus->value.integer)); |
5ac588cf | 1621 | win32_clear_inferiors (); |
95954743 | 1622 | return pid_to_ptid (current_event.dwProcessId); |
34b34921 | 1623 | case TARGET_WAITKIND_STOPPED: |
1b3f6016 | 1624 | case TARGET_WAITKIND_LOADED: |
f72f3e60 | 1625 | OUTMSG2 (("Child Stopped with signal = %d \n", |
10357975 | 1626 | ourstatus->value.sig)); |
b80864fb | 1627 | |
0bfdf32f | 1628 | regcache = get_thread_regcache (current_thread, 1); |
442ea881 | 1629 | child_fetch_inferior_registers (regcache, -1); |
95954743 | 1630 | return debug_event_ptid (¤t_event); |
1b3f6016 | 1631 | default: |
5b1c542e | 1632 | OUTMSG (("Ignoring unknown internal event, %d\n", ourstatus->kind)); |
1b3f6016 PA |
1633 | /* fall-through */ |
1634 | case TARGET_WAITKIND_SPURIOUS: | |
1635 | case TARGET_WAITKIND_EXECD: | |
34b34921 PA |
1636 | /* do nothing, just continue */ |
1637 | child_continue (DBG_CONTINUE, -1); | |
1638 | break; | |
b80864fb | 1639 | } |
b80864fb DJ |
1640 | } |
1641 | } | |
1642 | ||
1643 | /* Fetch registers from the inferior process. | |
1644 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
1645 | static void | |
442ea881 | 1646 | win32_fetch_inferior_registers (struct regcache *regcache, int regno) |
b80864fb | 1647 | { |
442ea881 | 1648 | child_fetch_inferior_registers (regcache, regno); |
b80864fb DJ |
1649 | } |
1650 | ||
1651 | /* Store registers to the inferior process. | |
1652 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
1653 | static void | |
442ea881 | 1654 | win32_store_inferior_registers (struct regcache *regcache, int regno) |
b80864fb | 1655 | { |
442ea881 | 1656 | child_store_inferior_registers (regcache, regno); |
b80864fb DJ |
1657 | } |
1658 | ||
1659 | /* Read memory from the inferior process. This should generally be | |
1660 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1661 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
1662 | static int | |
1663 | win32_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) | |
1664 | { | |
ed50f18f | 1665 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1666 | } |
1667 | ||
1668 | /* Write memory to the inferior process. This should generally be | |
1669 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1670 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1671 | Returns 0 on success and errno on failure. */ | |
1672 | static int | |
1673 | win32_write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, | |
1674 | int len) | |
1675 | { | |
1676 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1677 | } | |
1678 | ||
7390519e PA |
1679 | /* Send an interrupt request to the inferior process. */ |
1680 | static void | |
1681 | win32_request_interrupt (void) | |
1682 | { | |
1683 | winapi_DebugBreakProcess DebugBreakProcess; | |
1684 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1685 | ||
1686 | #ifdef _WIN32_WCE | |
1687 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1688 | #else | |
1689 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1690 | #endif | |
1691 | ||
1692 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1693 | ||
1694 | if (GenerateConsoleCtrlEvent != NULL | |
1695 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1696 | return; | |
1697 | ||
1698 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1699 | not a process group id. | |
1700 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1701 | breakpoint exception in the interior process. */ | |
1702 | ||
1703 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1704 | ||
1705 | if (DebugBreakProcess != NULL | |
1706 | && DebugBreakProcess (current_process_handle)) | |
1707 | return; | |
1708 | ||
4d5d1aaa PA |
1709 | /* Last resort, suspend all threads manually. */ |
1710 | soft_interrupt_requested = 1; | |
7390519e PA |
1711 | } |
1712 | ||
59a016f0 PA |
1713 | #ifdef _WIN32_WCE |
1714 | int | |
1715 | win32_error_to_fileio_error (DWORD err) | |
1716 | { | |
1717 | switch (err) | |
1718 | { | |
1719 | case ERROR_BAD_PATHNAME: | |
1720 | case ERROR_FILE_NOT_FOUND: | |
1721 | case ERROR_INVALID_NAME: | |
1722 | case ERROR_PATH_NOT_FOUND: | |
1723 | return FILEIO_ENOENT; | |
1724 | case ERROR_CRC: | |
1725 | case ERROR_IO_DEVICE: | |
1726 | case ERROR_OPEN_FAILED: | |
1727 | return FILEIO_EIO; | |
1728 | case ERROR_INVALID_HANDLE: | |
1729 | return FILEIO_EBADF; | |
1730 | case ERROR_ACCESS_DENIED: | |
1731 | case ERROR_SHARING_VIOLATION: | |
1732 | return FILEIO_EACCES; | |
1733 | case ERROR_NOACCESS: | |
1734 | return FILEIO_EFAULT; | |
1735 | case ERROR_BUSY: | |
1736 | return FILEIO_EBUSY; | |
1737 | case ERROR_ALREADY_EXISTS: | |
1738 | case ERROR_FILE_EXISTS: | |
1739 | return FILEIO_EEXIST; | |
1740 | case ERROR_BAD_DEVICE: | |
1741 | return FILEIO_ENODEV; | |
1742 | case ERROR_DIRECTORY: | |
1743 | return FILEIO_ENOTDIR; | |
1744 | case ERROR_FILENAME_EXCED_RANGE: | |
1745 | case ERROR_INVALID_DATA: | |
1746 | case ERROR_INVALID_PARAMETER: | |
1747 | case ERROR_NEGATIVE_SEEK: | |
1748 | return FILEIO_EINVAL; | |
1749 | case ERROR_TOO_MANY_OPEN_FILES: | |
1750 | return FILEIO_EMFILE; | |
1751 | case ERROR_HANDLE_DISK_FULL: | |
1752 | case ERROR_DISK_FULL: | |
1753 | return FILEIO_ENOSPC; | |
1754 | case ERROR_WRITE_PROTECT: | |
1755 | return FILEIO_EROFS; | |
1756 | case ERROR_NOT_SUPPORTED: | |
1757 | return FILEIO_ENOSYS; | |
1758 | } | |
1759 | ||
1760 | return FILEIO_EUNKNOWN; | |
1761 | } | |
1762 | ||
1763 | static void | |
1764 | wince_hostio_last_error (char *buf) | |
1765 | { | |
1766 | DWORD winerr = GetLastError (); | |
1767 | int fileio_err = win32_error_to_fileio_error (winerr); | |
1768 | sprintf (buf, "F-1,%x", fileio_err); | |
1769 | } | |
1770 | #endif | |
1771 | ||
711e434b PM |
1772 | /* Write Windows OS Thread Information Block address. */ |
1773 | ||
1774 | static int | |
1775 | win32_get_tib_address (ptid_t ptid, CORE_ADDR *addr) | |
1776 | { | |
1777 | win32_thread_info *th; | |
1778 | th = thread_rec (ptid, 0); | |
1779 | if (th == NULL) | |
1780 | return 0; | |
1781 | if (addr != NULL) | |
1782 | *addr = th->thread_local_base; | |
1783 | return 1; | |
1784 | } | |
1785 | ||
fb78e89c AT |
1786 | /* Implementation of the target_ops method "sw_breakpoint_from_kind". */ |
1787 | ||
1788 | static const gdb_byte * | |
1789 | win32_sw_breakpoint_from_kind (int kind, int *size) | |
1790 | { | |
1791 | *size = the_low_target.breakpoint_len; | |
1792 | return the_low_target.breakpoint; | |
1793 | } | |
1794 | ||
b80864fb DJ |
1795 | static struct target_ops win32_target_ops = { |
1796 | win32_create_inferior, | |
ece66d65 | 1797 | NULL, /* post_create_inferior */ |
b80864fb DJ |
1798 | win32_attach, |
1799 | win32_kill, | |
1800 | win32_detach, | |
505106cd | 1801 | win32_mourn, |
444d6139 | 1802 | win32_join, |
b80864fb DJ |
1803 | win32_thread_alive, |
1804 | win32_resume, | |
1805 | win32_wait, | |
1806 | win32_fetch_inferior_registers, | |
1807 | win32_store_inferior_registers, | |
90d74c30 | 1808 | NULL, /* prepare_to_access_memory */ |
0146f85b | 1809 | NULL, /* done_accessing_memory */ |
b80864fb DJ |
1810 | win32_read_inferior_memory, |
1811 | win32_write_inferior_memory, | |
711e434b | 1812 | NULL, /* lookup_symbols */ |
7390519e | 1813 | win32_request_interrupt, |
711e434b | 1814 | NULL, /* read_auxv */ |
802e8e6d | 1815 | win32_supports_z_point_type, |
aa5ca48f DE |
1816 | win32_insert_point, |
1817 | win32_remove_point, | |
f5771b1d PA |
1818 | NULL, /* stopped_by_sw_breakpoint */ |
1819 | NULL, /* supports_stopped_by_sw_breakpoint */ | |
1820 | NULL, /* stopped_by_hw_breakpoint */ | |
1821 | NULL, /* supports_stopped_by_hw_breakpoint */ | |
70b90b91 | 1822 | target_can_do_hardware_single_step, |
aa5ca48f DE |
1823 | win32_stopped_by_watchpoint, |
1824 | win32_stopped_data_address, | |
711e434b PM |
1825 | NULL, /* read_offsets */ |
1826 | NULL, /* get_tls_address */ | |
1827 | NULL, /* qxfer_spu */ | |
59a016f0 PA |
1828 | #ifdef _WIN32_WCE |
1829 | wince_hostio_last_error, | |
1830 | #else | |
1831 | hostio_last_error_from_errno, | |
1832 | #endif | |
711e434b PM |
1833 | NULL, /* qxfer_osdata */ |
1834 | NULL, /* qxfer_siginfo */ | |
1835 | NULL, /* supports_non_stop */ | |
1836 | NULL, /* async */ | |
1837 | NULL, /* start_non_stop */ | |
1838 | NULL, /* supports_multi_process */ | |
89245bc0 DB |
1839 | NULL, /* supports_fork_events */ |
1840 | NULL, /* supports_vfork_events */ | |
94585166 | 1841 | NULL, /* supports_exec_events */ |
de0d863e | 1842 | NULL, /* handle_new_gdb_connection */ |
711e434b PM |
1843 | NULL, /* handle_monitor_command */ |
1844 | NULL, /* core_of_thread */ | |
881127c9 | 1845 | NULL, /* read_loadmap */ |
711e434b PM |
1846 | NULL, /* process_qsupported */ |
1847 | NULL, /* supports_tracepoints */ | |
1848 | NULL, /* read_pc */ | |
1849 | NULL, /* write_pc */ | |
1850 | NULL, /* thread_stopped */ | |
fb78e89c AT |
1851 | win32_get_tib_address, |
1852 | NULL, /* pause_all */ | |
1853 | NULL, /* unpause_all */ | |
1854 | NULL, /* stabilize_threads */ | |
1855 | NULL, /* install_fast_tracepoint_jump_pad */ | |
1856 | NULL, /* emit_ops */ | |
1857 | NULL, /* supports_disable_randomization */ | |
1858 | NULL, /* get_min_fast_tracepoint_insn_len */ | |
1859 | NULL, /* qxfer_libraries_svr4 */ | |
1860 | NULL, /* support_agent */ | |
1861 | NULL, /* support_btrace */ | |
1862 | NULL, /* enable_btrace */ | |
1863 | NULL, /* disable_btrace */ | |
1864 | NULL, /* read_btrace */ | |
1865 | NULL, /* read_btrace_conf */ | |
1866 | NULL, /* supports_range_stepping */ | |
1867 | NULL, /* pid_to_exec_file */ | |
1868 | NULL, /* multifs_open */ | |
1869 | NULL, /* multifs_unlink */ | |
1870 | NULL, /* multifs_readlink */ | |
1871 | NULL, /* breakpoint_kind_from_pc */ | |
1872 | win32_sw_breakpoint_from_kind, | |
b80864fb DJ |
1873 | }; |
1874 | ||
1875 | /* Initialize the Win32 backend. */ | |
1876 | void | |
1877 | initialize_low (void) | |
1878 | { | |
1879 | set_target_ops (&win32_target_ops); | |
d05b4ac3 | 1880 | the_low_target.arch_setup (); |
b80864fb | 1881 | } |