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b80864fb | 1 | /* Low level interface to Windows debugging, for gdbserver. |
b811d2c2 | 2 | Copyright (C) 2006-2020 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 | 34 | #include <process.h> |
268a13a5 TT |
35 | #include "gdbsupport/gdb_tilde_expand.h" |
36 | #include "gdbsupport/common-inferior.h" | |
559e7e50 | 37 | #include "gdbsupport/gdb_wait.h" |
b80864fb DJ |
38 | |
39 | #ifndef USE_WIN32API | |
40 | #include <sys/cygwin.h> | |
41 | #endif | |
42 | ||
10357975 PA |
43 | #define OUTMSG(X) do { printf X; fflush (stderr); } while (0) |
44 | ||
45 | #define OUTMSG2(X) \ | |
46 | do \ | |
47 | { \ | |
48 | if (debug_threads) \ | |
49 | { \ | |
50 | printf X; \ | |
51 | fflush (stderr); \ | |
52 | } \ | |
53 | } while (0) | |
ed50f18f PA |
54 | |
55 | #ifndef _T | |
56 | #define _T(x) TEXT (x) | |
57 | #endif | |
58 | ||
59 | #ifndef COUNTOF | |
60 | #define COUNTOF(STR) (sizeof (STR) / sizeof ((STR)[0])) | |
b80864fb DJ |
61 | #endif |
62 | ||
bf914831 PA |
63 | #ifdef _WIN32_WCE |
64 | # define GETPROCADDRESS(DLL, PROC) \ | |
65 | ((winapi_ ## PROC) GetProcAddress (DLL, TEXT (#PROC))) | |
66 | #else | |
67 | # define GETPROCADDRESS(DLL, PROC) \ | |
68 | ((winapi_ ## PROC) GetProcAddress (DLL, #PROC)) | |
69 | #endif | |
70 | ||
b80864fb DJ |
71 | int using_threads = 1; |
72 | ||
73 | /* Globals. */ | |
d97903b2 | 74 | static int attaching = 0; |
b80864fb DJ |
75 | static HANDLE current_process_handle = NULL; |
76 | static DWORD current_process_id = 0; | |
5ac588cf | 77 | static DWORD main_thread_id = 0; |
7928d571 | 78 | static EXCEPTION_RECORD siginfo_er; /* Contents of $_siginfo */ |
a493e3e2 | 79 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
80 | |
81 | /* The current debug event from WaitForDebugEvent. */ | |
82 | static DEBUG_EVENT current_event; | |
83 | ||
4210d83e PA |
84 | /* A status that hasn't been reported to the core yet, and so |
85 | win32_wait should return it next, instead of fetching the next | |
86 | debug event off the win32 API. */ | |
87 | static struct target_waitstatus cached_status; | |
88 | ||
4d5d1aaa PA |
89 | /* Non zero if an interrupt request is to be satisfied by suspending |
90 | all threads. */ | |
91 | static int soft_interrupt_requested = 0; | |
92 | ||
93 | /* Non zero if the inferior is stopped in a simulated breakpoint done | |
94 | by suspending all the threads. */ | |
95 | static int faked_breakpoint = 0; | |
96 | ||
3aee8918 PA |
97 | const struct target_desc *win32_tdesc; |
98 | ||
ed50f18f | 99 | #define NUM_REGS (the_low_target.num_regs) |
b80864fb | 100 | |
7a9a7487 MG |
101 | typedef BOOL (WINAPI *winapi_DebugActiveProcessStop) (DWORD dwProcessId); |
102 | typedef BOOL (WINAPI *winapi_DebugSetProcessKillOnExit) (BOOL KillOnExit); | |
103 | typedef BOOL (WINAPI *winapi_DebugBreakProcess) (HANDLE); | |
104 | typedef BOOL (WINAPI *winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD); | |
b80864fb | 105 | |
379a5e2d | 106 | #ifndef _WIN32_WCE |
f25b3fc3 | 107 | static void win32_add_all_dlls (void); |
379a5e2d | 108 | #endif |
34b34921 | 109 | |
b80864fb DJ |
110 | /* Get the thread ID from the current selected inferior (the current |
111 | thread). */ | |
95954743 | 112 | static ptid_t |
0bfdf32f | 113 | current_thread_ptid (void) |
b80864fb | 114 | { |
80894984 | 115 | return current_ptid; |
95954743 PA |
116 | } |
117 | ||
118 | /* The current debug event from WaitForDebugEvent. */ | |
119 | static ptid_t | |
120 | debug_event_ptid (DEBUG_EVENT *event) | |
121 | { | |
fd79271b | 122 | return ptid_t (event->dwProcessId, event->dwThreadId, 0); |
b80864fb DJ |
123 | } |
124 | ||
9c6c8194 PA |
125 | /* Get the thread context of the thread associated with TH. */ |
126 | ||
127 | static void | |
128 | win32_get_thread_context (win32_thread_info *th) | |
129 | { | |
130 | memset (&th->context, 0, sizeof (CONTEXT)); | |
a2abc7de | 131 | (*the_low_target.get_thread_context) (th); |
9c6c8194 PA |
132 | #ifdef _WIN32_WCE |
133 | memcpy (&th->base_context, &th->context, sizeof (CONTEXT)); | |
134 | #endif | |
135 | } | |
136 | ||
137 | /* Set the thread context of the thread associated with TH. */ | |
138 | ||
139 | static void | |
140 | win32_set_thread_context (win32_thread_info *th) | |
141 | { | |
142 | #ifdef _WIN32_WCE | |
143 | /* Calling SuspendThread on a thread that is running kernel code | |
144 | will report that the suspending was successful, but in fact, that | |
145 | will often not be true. In those cases, the context returned by | |
146 | GetThreadContext will not be correct by the time the thread | |
147 | stops, hence we can't set that context back into the thread when | |
30baf67b | 148 | resuming - it will most likely crash the inferior. |
9c6c8194 PA |
149 | Unfortunately, there is no way to know when the thread will |
150 | really stop. To work around it, we'll only write the context | |
151 | back to the thread when either the user or GDB explicitly change | |
152 | it between stopping and resuming. */ | |
153 | if (memcmp (&th->context, &th->base_context, sizeof (CONTEXT)) != 0) | |
154 | #endif | |
a2abc7de | 155 | SetThreadContext (th->h, &th->context); |
9c6c8194 PA |
156 | } |
157 | ||
a2abc7de PA |
158 | /* Set the thread context of the thread associated with TH. */ |
159 | ||
160 | static void | |
161 | win32_prepare_to_resume (win32_thread_info *th) | |
b80864fb | 162 | { |
a2abc7de PA |
163 | if (the_low_target.prepare_to_resume != NULL) |
164 | (*the_low_target.prepare_to_resume) (th); | |
165 | } | |
b80864fb | 166 | |
a2abc7de | 167 | /* See win32-low.h. */ |
b80864fb | 168 | |
a2abc7de PA |
169 | void |
170 | win32_require_context (win32_thread_info *th) | |
171 | { | |
172 | if (th->context.ContextFlags == 0) | |
b80864fb | 173 | { |
c436e841 PA |
174 | if (!th->suspended) |
175 | { | |
176 | if (SuspendThread (th->h) == (DWORD) -1) | |
177 | { | |
178 | DWORD err = GetLastError (); | |
179 | OUTMSG (("warning: SuspendThread failed in thread_rec, " | |
180 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
181 | } | |
182 | else | |
183 | th->suspended = 1; | |
184 | } | |
b80864fb | 185 | |
9c6c8194 | 186 | win32_get_thread_context (th); |
b80864fb | 187 | } |
a2abc7de PA |
188 | } |
189 | ||
190 | /* Find a thread record given a thread id. If GET_CONTEXT is set then | |
191 | also retrieve the context for this thread. */ | |
192 | static win32_thread_info * | |
193 | thread_rec (ptid_t ptid, int get_context) | |
194 | { | |
8dc7b443 | 195 | thread_info *thread = find_thread_ptid (ptid); |
a2abc7de PA |
196 | if (thread == NULL) |
197 | return NULL; | |
198 | ||
8dc7b443 | 199 | win32_thread_info *th = (win32_thread_info *) thread_target_data (thread); |
a2abc7de PA |
200 | if (get_context) |
201 | win32_require_context (th); | |
b80864fb DJ |
202 | return th; |
203 | } | |
204 | ||
205 | /* Add a thread to the thread list. */ | |
41093d81 | 206 | static win32_thread_info * |
711e434b | 207 | child_add_thread (DWORD pid, DWORD tid, HANDLE h, void *tlb) |
b80864fb | 208 | { |
41093d81 | 209 | win32_thread_info *th; |
fd79271b | 210 | ptid_t ptid = ptid_t (pid, tid, 0); |
b80864fb | 211 | |
95954743 | 212 | if ((th = thread_rec (ptid, FALSE))) |
b80864fb DJ |
213 | return th; |
214 | ||
8d749320 | 215 | th = XCNEW (win32_thread_info); |
b80864fb DJ |
216 | th->tid = tid; |
217 | th->h = h; | |
711e434b | 218 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
b80864fb | 219 | |
95954743 | 220 | add_thread (ptid, th); |
b80864fb | 221 | |
34b34921 PA |
222 | if (the_low_target.thread_added != NULL) |
223 | (*the_low_target.thread_added) (th); | |
b80864fb DJ |
224 | |
225 | return th; | |
226 | } | |
227 | ||
228 | /* Delete a thread from the list of threads. */ | |
229 | static void | |
9c80ecd6 | 230 | delete_thread_info (thread_info *thread) |
b80864fb | 231 | { |
6afd337d | 232 | win32_thread_info *th = (win32_thread_info *) thread_target_data (thread); |
b80864fb | 233 | |
c3de4d92 | 234 | remove_thread (thread); |
b80864fb DJ |
235 | CloseHandle (th->h); |
236 | free (th); | |
237 | } | |
238 | ||
239 | /* Delete a thread from the list of threads. */ | |
240 | static void | |
95954743 | 241 | child_delete_thread (DWORD pid, DWORD tid) |
b80864fb | 242 | { |
b80864fb | 243 | /* If the last thread is exiting, just return. */ |
9c80ecd6 | 244 | if (all_threads.size () == 1) |
b80864fb DJ |
245 | return; |
246 | ||
8dc7b443 | 247 | thread_info *thread = find_thread_ptid (ptid_t (pid, tid)); |
b80864fb DJ |
248 | if (thread == NULL) |
249 | return; | |
250 | ||
251 | delete_thread_info (thread); | |
252 | } | |
253 | ||
aa5ca48f DE |
254 | /* These watchpoint related wrapper functions simply pass on the function call |
255 | if the low target has registered a corresponding function. */ | |
256 | ||
a2b2297a TBA |
257 | bool |
258 | win32_process_target::supports_z_point_type (char z_type) | |
802e8e6d PA |
259 | { |
260 | return (the_low_target.supports_z_point_type != NULL | |
261 | && the_low_target.supports_z_point_type (z_type)); | |
262 | } | |
263 | ||
7e0bde70 TBA |
264 | int |
265 | win32_process_target::insert_point (enum raw_bkpt_type type, CORE_ADDR addr, | |
266 | int size, raw_breakpoint *bp) | |
aa5ca48f DE |
267 | { |
268 | if (the_low_target.insert_point != NULL) | |
802e8e6d | 269 | return the_low_target.insert_point (type, addr, size, bp); |
aa5ca48f DE |
270 | else |
271 | /* Unsupported (see target.h). */ | |
272 | return 1; | |
273 | } | |
274 | ||
7e0bde70 TBA |
275 | int |
276 | win32_process_target::remove_point (enum raw_bkpt_type type, CORE_ADDR addr, | |
277 | int size, raw_breakpoint *bp) | |
aa5ca48f DE |
278 | { |
279 | if (the_low_target.remove_point != NULL) | |
802e8e6d | 280 | return the_low_target.remove_point (type, addr, size, bp); |
aa5ca48f DE |
281 | else |
282 | /* Unsupported (see target.h). */ | |
283 | return 1; | |
284 | } | |
285 | ||
6eeb5c55 TBA |
286 | bool |
287 | win32_process_target::stopped_by_watchpoint () | |
aa5ca48f DE |
288 | { |
289 | if (the_low_target.stopped_by_watchpoint != NULL) | |
290 | return the_low_target.stopped_by_watchpoint (); | |
291 | else | |
6eeb5c55 | 292 | return false; |
aa5ca48f DE |
293 | } |
294 | ||
6eeb5c55 TBA |
295 | CORE_ADDR |
296 | win32_process_target::stopped_data_address () | |
aa5ca48f DE |
297 | { |
298 | if (the_low_target.stopped_data_address != NULL) | |
299 | return the_low_target.stopped_data_address (); | |
300 | else | |
301 | return 0; | |
302 | } | |
303 | ||
304 | ||
b80864fb DJ |
305 | /* Transfer memory from/to the debugged process. */ |
306 | static int | |
307 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
5b6d1e4f | 308 | int write, process_stratum_target *target) |
b80864fb | 309 | { |
cee83bcb PM |
310 | BOOL success; |
311 | SIZE_T done = 0; | |
312 | DWORD lasterror = 0; | |
e8f0053d | 313 | uintptr_t addr = (uintptr_t) memaddr; |
b80864fb DJ |
314 | |
315 | if (write) | |
316 | { | |
cee83bcb PM |
317 | success = WriteProcessMemory (current_process_handle, (LPVOID) addr, |
318 | (LPCVOID) our, len, &done); | |
319 | if (!success) | |
320 | lasterror = GetLastError (); | |
b80864fb DJ |
321 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); |
322 | } | |
323 | else | |
324 | { | |
cee83bcb PM |
325 | success = ReadProcessMemory (current_process_handle, (LPCVOID) addr, |
326 | (LPVOID) our, len, &done); | |
327 | if (!success) | |
328 | lasterror = GetLastError (); | |
b80864fb | 329 | } |
cee83bcb PM |
330 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
331 | return done; | |
332 | else | |
333 | return success ? done : -1; | |
b80864fb DJ |
334 | } |
335 | ||
ed50f18f | 336 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
337 | state. */ |
338 | static void | |
339 | child_init_thread_list (void) | |
340 | { | |
f0045347 | 341 | for_each_thread (delete_thread_info); |
b80864fb DJ |
342 | } |
343 | ||
f25b3fc3 JB |
344 | /* Zero during the child initialization phase, and nonzero otherwise. */ |
345 | ||
346 | static int child_initialization_done = 0; | |
347 | ||
b80864fb | 348 | static void |
95954743 | 349 | do_initial_child_stuff (HANDLE proch, DWORD pid, int attached) |
b80864fb | 350 | { |
3aee8918 PA |
351 | struct process_info *proc; |
352 | ||
a493e3e2 | 353 | last_sig = GDB_SIGNAL_0; |
b80864fb | 354 | |
5ac588cf PA |
355 | current_process_handle = proch; |
356 | current_process_id = pid; | |
357 | main_thread_id = 0; | |
358 | ||
359 | soft_interrupt_requested = 0; | |
360 | faked_breakpoint = 0; | |
361 | ||
b80864fb DJ |
362 | memset (¤t_event, 0, sizeof (current_event)); |
363 | ||
3aee8918 PA |
364 | proc = add_process (pid, attached); |
365 | proc->tdesc = win32_tdesc; | |
b80864fb | 366 | child_init_thread_list (); |
f25b3fc3 | 367 | child_initialization_done = 0; |
ed50f18f PA |
368 | |
369 | if (the_low_target.initial_stuff != NULL) | |
370 | (*the_low_target.initial_stuff) (); | |
4210d83e PA |
371 | |
372 | cached_status.kind = TARGET_WAITKIND_IGNORE; | |
373 | ||
374 | /* Flush all currently pending debug events (thread and dll list) up | |
375 | to the initial breakpoint. */ | |
376 | while (1) | |
377 | { | |
378 | struct target_waitstatus status; | |
379 | ||
6532e7e3 | 380 | the_target->pt->wait (minus_one_ptid, &status, 0); |
4210d83e PA |
381 | |
382 | /* Note win32_wait doesn't return thread events. */ | |
383 | if (status.kind != TARGET_WAITKIND_LOADED) | |
384 | { | |
385 | cached_status = status; | |
386 | break; | |
387 | } | |
388 | ||
389 | { | |
390 | struct thread_resume resume; | |
391 | ||
392 | resume.thread = minus_one_ptid; | |
393 | resume.kind = resume_continue; | |
394 | resume.sig = 0; | |
395 | ||
0e4d7e35 | 396 | the_target->pt->resume (&resume, 1); |
4210d83e PA |
397 | } |
398 | } | |
379a5e2d JB |
399 | |
400 | #ifndef _WIN32_WCE | |
f25b3fc3 JB |
401 | /* Now that the inferior has been started and all DLLs have been mapped, |
402 | we can iterate over all DLLs and load them in. | |
403 | ||
404 | We avoid doing it any earlier because, on certain versions of Windows, | |
405 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
406 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
407 | include the DLL name, preventing us from creating an associated SO. | |
408 | A possible explanation is that ntdll.dll might be mapped before | |
409 | the SO info gets created by the Windows system -- ntdll.dll is | |
410 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
411 | do not seem to suffer from that problem. | |
412 | ||
413 | Rather than try to work around this sort of issue, it is much | |
414 | simpler to just ignore DLL load/unload events during the startup | |
415 | phase, and then process them all in one batch now. */ | |
416 | win32_add_all_dlls (); | |
379a5e2d | 417 | #endif |
f25b3fc3 JB |
418 | |
419 | child_initialization_done = 1; | |
b80864fb DJ |
420 | } |
421 | ||
422 | /* Resume all artificially suspended threads if we are continuing | |
423 | execution. */ | |
2bee2b6c SM |
424 | static void |
425 | continue_one_thread (thread_info *thread, int thread_id) | |
b80864fb | 426 | { |
6afd337d | 427 | win32_thread_info *th = (win32_thread_info *) thread_target_data (thread); |
b80864fb | 428 | |
a2abc7de | 429 | if (thread_id == -1 || thread_id == th->tid) |
b80864fb | 430 | { |
a2abc7de | 431 | win32_prepare_to_resume (th); |
34b34921 | 432 | |
a2abc7de | 433 | if (th->suspended) |
c436e841 | 434 | { |
a2abc7de PA |
435 | if (th->context.ContextFlags) |
436 | { | |
437 | win32_set_thread_context (th); | |
438 | th->context.ContextFlags = 0; | |
439 | } | |
440 | ||
441 | if (ResumeThread (th->h) == (DWORD) -1) | |
442 | { | |
443 | DWORD err = GetLastError (); | |
444 | OUTMSG (("warning: ResumeThread failed in continue_one_thread, " | |
445 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
446 | } | |
447 | th->suspended = 0; | |
c436e841 | 448 | } |
b80864fb | 449 | } |
b80864fb DJ |
450 | } |
451 | ||
452 | static BOOL | |
453 | child_continue (DWORD continue_status, int thread_id) | |
454 | { | |
4d5d1aaa PA |
455 | /* The inferior will only continue after the ContinueDebugEvent |
456 | call. */ | |
2bee2b6c SM |
457 | for_each_thread ([&] (thread_info *thread) |
458 | { | |
459 | continue_one_thread (thread, thread_id); | |
460 | }); | |
4d5d1aaa | 461 | faked_breakpoint = 0; |
b80864fb | 462 | |
4d5d1aaa PA |
463 | if (!ContinueDebugEvent (current_event.dwProcessId, |
464 | current_event.dwThreadId, | |
465 | continue_status)) | |
466 | return FALSE; | |
b80864fb | 467 | |
4d5d1aaa | 468 | return TRUE; |
b80864fb DJ |
469 | } |
470 | ||
b80864fb DJ |
471 | /* Fetch register(s) from the current thread context. */ |
472 | static void | |
442ea881 | 473 | child_fetch_inferior_registers (struct regcache *regcache, int r) |
b80864fb DJ |
474 | { |
475 | int regno; | |
0bfdf32f | 476 | win32_thread_info *th = thread_rec (current_thread_ptid (), TRUE); |
4463ce24 | 477 | if (r == -1 || r > NUM_REGS) |
442ea881 | 478 | child_fetch_inferior_registers (regcache, NUM_REGS); |
b80864fb DJ |
479 | else |
480 | for (regno = 0; regno < r; regno++) | |
442ea881 | 481 | (*the_low_target.fetch_inferior_register) (regcache, th, regno); |
b80864fb DJ |
482 | } |
483 | ||
484 | /* Store a new register value into the current thread context. We don't | |
485 | change the program's context until later, when we resume it. */ | |
486 | static void | |
442ea881 | 487 | child_store_inferior_registers (struct regcache *regcache, int r) |
b80864fb DJ |
488 | { |
489 | int regno; | |
0bfdf32f | 490 | win32_thread_info *th = thread_rec (current_thread_ptid (), TRUE); |
b80864fb | 491 | if (r == -1 || r == 0 || r > NUM_REGS) |
442ea881 | 492 | child_store_inferior_registers (regcache, NUM_REGS); |
b80864fb DJ |
493 | else |
494 | for (regno = 0; regno < r; regno++) | |
442ea881 | 495 | (*the_low_target.store_inferior_register) (regcache, th, regno); |
b80864fb DJ |
496 | } |
497 | ||
ed50f18f PA |
498 | /* Map the Windows error number in ERROR to a locale-dependent error |
499 | message string and return a pointer to it. Typically, the values | |
500 | for ERROR come from GetLastError. | |
501 | ||
502 | The string pointed to shall not be modified by the application, | |
503 | but may be overwritten by a subsequent call to strwinerror | |
504 | ||
505 | The strwinerror function does not change the current setting | |
506 | of GetLastError. */ | |
507 | ||
508 | char * | |
509 | strwinerror (DWORD error) | |
510 | { | |
511 | static char buf[1024]; | |
512 | TCHAR *msgbuf; | |
513 | DWORD lasterr = GetLastError (); | |
514 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
515 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
516 | NULL, | |
517 | error, | |
518 | 0, /* Default language */ | |
c3de4d92 | 519 | (LPTSTR) &msgbuf, |
ed50f18f PA |
520 | 0, |
521 | NULL); | |
522 | if (chars != 0) | |
523 | { | |
524 | /* If there is an \r\n appended, zap it. */ | |
525 | if (chars >= 2 | |
526 | && msgbuf[chars - 2] == '\r' | |
527 | && msgbuf[chars - 1] == '\n') | |
528 | { | |
529 | chars -= 2; | |
530 | msgbuf[chars] = 0; | |
531 | } | |
532 | ||
533 | if (chars > ((COUNTOF (buf)) - 1)) | |
534 | { | |
535 | chars = COUNTOF (buf) - 1; | |
536 | msgbuf [chars] = 0; | |
537 | } | |
538 | ||
539 | #ifdef UNICODE | |
540 | wcstombs (buf, msgbuf, chars + 1); | |
541 | #else | |
542 | strncpy (buf, msgbuf, chars + 1); | |
543 | #endif | |
544 | LocalFree (msgbuf); | |
545 | } | |
546 | else | |
dfe07582 | 547 | sprintf (buf, "unknown win32 error (%u)", (unsigned) error); |
ed50f18f PA |
548 | |
549 | SetLastError (lasterr); | |
550 | return buf; | |
551 | } | |
552 | ||
aec18585 PA |
553 | static BOOL |
554 | create_process (const char *program, char *args, | |
555 | DWORD flags, PROCESS_INFORMATION *pi) | |
556 | { | |
bc3b087d | 557 | const char *inferior_cwd = get_inferior_cwd (); |
aec18585 | 558 | BOOL ret; |
a9b34532 EZ |
559 | size_t argslen, proglen; |
560 | ||
561 | proglen = strlen (program) + 1; | |
562 | argslen = strlen (args) + proglen; | |
aec18585 PA |
563 | |
564 | #ifdef _WIN32_WCE | |
bc3b087d | 565 | wchar_t *p, *wprogram, *wargs, *wcwd = NULL; |
aec18585 | 566 | |
a9b34532 EZ |
567 | wprogram = (wchar_t *) alloca (proglen * sizeof (wchar_t)); |
568 | mbstowcs (wprogram, program, proglen); | |
aec18585 PA |
569 | |
570 | for (p = wprogram; *p; ++p) | |
571 | if (L'/' == *p) | |
572 | *p = L'\\'; | |
573 | ||
aec18585 | 574 | wargs = alloca ((argslen + 1) * sizeof (wchar_t)); |
a9b34532 EZ |
575 | wcscpy (wargs, wprogram); |
576 | wcscat (wargs, L" "); | |
577 | mbstowcs (wargs + proglen, args, argslen + 1 - proglen); | |
aec18585 | 578 | |
bc3b087d SDJ |
579 | if (inferior_cwd != NULL) |
580 | { | |
906994d9 | 581 | std::string expanded_infcwd = gdb_tilde_expand (inferior_cwd); |
bc3b087d SDJ |
582 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), |
583 | '/', '\\'); | |
584 | wcwd = alloca ((expanded_infcwd.size () + 1) * sizeof (wchar_t)); | |
585 | if (mbstowcs (wcwd, expanded_infcwd.c_str (), | |
586 | expanded_infcwd.size () + 1) == NULL) | |
587 | { | |
588 | error (_("\ | |
589 | Could not convert the expanded inferior cwd to wide-char.")); | |
590 | } | |
591 | } | |
592 | ||
aec18585 | 593 | ret = CreateProcessW (wprogram, /* image name */ |
1b3f6016 PA |
594 | wargs, /* command line */ |
595 | NULL, /* security, not supported */ | |
596 | NULL, /* thread, not supported */ | |
597 | FALSE, /* inherit handles, not supported */ | |
598 | flags, /* start flags */ | |
599 | NULL, /* environment, not supported */ | |
bc3b087d | 600 | wcwd, /* current directory */ |
1b3f6016 PA |
601 | NULL, /* start info, not supported */ |
602 | pi); /* proc info */ | |
aec18585 PA |
603 | #else |
604 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; | |
a9b34532 EZ |
605 | char *program_and_args = (char *) alloca (argslen + 1); |
606 | ||
607 | strcpy (program_and_args, program); | |
608 | strcat (program_and_args, " "); | |
609 | strcat (program_and_args, args); | |
610 | ret = CreateProcessA (program, /* image name */ | |
611 | program_and_args, /* command line */ | |
612 | NULL, /* security */ | |
613 | NULL, /* thread */ | |
614 | TRUE, /* inherit handles */ | |
615 | flags, /* start flags */ | |
616 | NULL, /* environment */ | |
906994d9 JB |
617 | /* current directory */ |
618 | (inferior_cwd == NULL | |
619 | ? NULL | |
620 | : gdb_tilde_expand (inferior_cwd).c_str()), | |
a9b34532 EZ |
621 | &si, /* start info */ |
622 | pi); /* proc info */ | |
aec18585 PA |
623 | #endif |
624 | ||
625 | return ret; | |
626 | } | |
627 | ||
b80864fb | 628 | /* Start a new process. |
2090129c SDJ |
629 | PROGRAM is the program name. |
630 | PROGRAM_ARGS is the vector containing the inferior's args. | |
b80864fb DJ |
631 | Returns the new PID on success, -1 on failure. Registers the new |
632 | process with the process list. */ | |
15295543 TBA |
633 | int |
634 | win32_process_target::create_inferior (const char *program, | |
635 | const std::vector<char *> &program_args) | |
b80864fb | 636 | { |
6341380d | 637 | client_state &cs = get_client_state (); |
b80864fb | 638 | #ifndef USE_WIN32API |
d8d2a3ee | 639 | char real_path[PATH_MAX]; |
b80864fb DJ |
640 | char *orig_path, *new_path, *path_ptr; |
641 | #endif | |
b80864fb DJ |
642 | BOOL ret; |
643 | DWORD flags; | |
ed50f18f | 644 | PROCESS_INFORMATION pi; |
aec18585 | 645 | DWORD err; |
2090129c SDJ |
646 | std::string str_program_args = stringify_argv (program_args); |
647 | char *args = (char *) str_program_args.c_str (); | |
b80864fb | 648 | |
d97903b2 PA |
649 | /* win32_wait needs to know we're not attaching. */ |
650 | attaching = 0; | |
651 | ||
b80864fb DJ |
652 | if (!program) |
653 | error ("No executable specified, specify executable to debug.\n"); | |
654 | ||
b80864fb DJ |
655 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
656 | ||
657 | #ifndef USE_WIN32API | |
658 | orig_path = NULL; | |
659 | path_ptr = getenv ("PATH"); | |
660 | if (path_ptr) | |
661 | { | |
81239425 | 662 | int size = cygwin_conv_path_list (CCP_POSIX_TO_WIN_A, path_ptr, NULL, 0); |
0ae534d2 JT |
663 | orig_path = (char *) alloca (strlen (path_ptr) + 1); |
664 | new_path = (char *) alloca (size); | |
b80864fb | 665 | strcpy (orig_path, path_ptr); |
81239425 | 666 | cygwin_conv_path_list (CCP_POSIX_TO_WIN_A, path_ptr, new_path, size); |
b80864fb | 667 | setenv ("PATH", new_path, 1); |
81239425 | 668 | } |
d8d2a3ee | 669 | cygwin_conv_path (CCP_POSIX_TO_WIN_A, program, real_path, PATH_MAX); |
b80864fb DJ |
670 | program = real_path; |
671 | #endif | |
672 | ||
a9b34532 | 673 | OUTMSG2 (("Command line is \"%s %s\"\n", program, args)); |
b80864fb | 674 | |
ed50f18f | 675 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 676 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 677 | #endif |
b80864fb | 678 | |
aec18585 PA |
679 | ret = create_process (program, args, flags, &pi); |
680 | err = GetLastError (); | |
681 | if (!ret && err == ERROR_FILE_NOT_FOUND) | |
682 | { | |
c3de4d92 | 683 | char *exename = (char *) alloca (strlen (program) + 5); |
aec18585 PA |
684 | strcat (strcpy (exename, program), ".exe"); |
685 | ret = create_process (exename, args, flags, &pi); | |
686 | err = GetLastError (); | |
687 | } | |
b80864fb DJ |
688 | |
689 | #ifndef USE_WIN32API | |
690 | if (orig_path) | |
691 | setenv ("PATH", orig_path, 1); | |
692 | #endif | |
693 | ||
694 | if (!ret) | |
695 | { | |
a9b34532 | 696 | error ("Error creating process \"%s %s\", (error %d): %s\n", |
ed50f18f | 697 | program, args, (int) err, strwinerror (err)); |
b80864fb DJ |
698 | } |
699 | else | |
700 | { | |
a9b34532 | 701 | OUTMSG2 (("Process created: %s %s\n", program, (char *) args)); |
b80864fb DJ |
702 | } |
703 | ||
ed50f18f PA |
704 | #ifndef _WIN32_WCE |
705 | /* On Windows CE this handle can't be closed. The OS reuses | |
706 | it in the debug events, while the 9x/NT versions of Windows | |
707 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 708 | CloseHandle (pi.hThread); |
ed50f18f | 709 | #endif |
b80864fb | 710 | |
95954743 | 711 | do_initial_child_stuff (pi.hProcess, pi.dwProcessId, 0); |
b80864fb | 712 | |
7dbac825 JB |
713 | /* Wait till we are at 1st instruction in program, return new pid |
714 | (assuming success). */ | |
6532e7e3 | 715 | cs.last_ptid = wait (ptid_t (current_process_id), &cs.last_status, 0); |
7dbac825 | 716 | |
052793ad HD |
717 | /* Necessary for handle_v_kill. */ |
718 | signal_pid = current_process_id; | |
719 | ||
b80864fb DJ |
720 | return current_process_id; |
721 | } | |
722 | ||
723 | /* Attach to a running process. | |
724 | PID is the process ID to attach to, specified by the user | |
725 | or a higher layer. */ | |
ef03dad8 TBA |
726 | int |
727 | win32_process_target::attach (unsigned long pid) | |
b80864fb | 728 | { |
5ca906e6 | 729 | HANDLE h; |
bf914831 | 730 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; |
5ca906e6 | 731 | DWORD err; |
ed50f18f PA |
732 | #ifdef _WIN32_WCE |
733 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
734 | #else | |
735 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
736 | #endif | |
bf914831 | 737 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); |
b80864fb | 738 | |
5ca906e6 PA |
739 | h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
740 | if (h != NULL) | |
1d5315fe | 741 | { |
5ca906e6 PA |
742 | if (DebugActiveProcess (pid)) |
743 | { | |
744 | if (DebugSetProcessKillOnExit != NULL) | |
745 | DebugSetProcessKillOnExit (FALSE); | |
746 | ||
d97903b2 | 747 | /* win32_wait needs to know we're attaching. */ |
1b3f6016 | 748 | attaching = 1; |
95954743 | 749 | do_initial_child_stuff (h, pid, 1); |
5ca906e6 PA |
750 | return 0; |
751 | } | |
752 | ||
753 | CloseHandle (h); | |
b80864fb DJ |
754 | } |
755 | ||
5ca906e6 PA |
756 | err = GetLastError (); |
757 | error ("Attach to process failed (error %d): %s\n", | |
758 | (int) err, strwinerror (err)); | |
b80864fb DJ |
759 | } |
760 | ||
bce7165d PA |
761 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
762 | static void | |
c0879059 | 763 | handle_output_debug_string (void) |
bce7165d PA |
764 | { |
765 | #define READ_BUFFER_LEN 1024 | |
766 | CORE_ADDR addr; | |
767 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
768 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
769 | ||
770 | if (nbytes == 0) | |
771 | return; | |
772 | ||
773 | if (nbytes > READ_BUFFER_LEN) | |
774 | nbytes = READ_BUFFER_LEN; | |
775 | ||
776 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
777 | ||
778 | if (current_event.u.DebugString.fUnicode) | |
779 | { | |
780 | /* The event tells us how many bytes, not chars, even | |
1b3f6016 | 781 | in Unicode. */ |
bce7165d PA |
782 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; |
783 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
784 | return; | |
785 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
786 | } | |
787 | else | |
788 | { | |
789 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
790 | return; | |
791 | } | |
792 | ||
61012eef | 793 | if (!startswith (s, "cYg")) |
45e2715e PA |
794 | { |
795 | if (!server_waiting) | |
796 | { | |
797 | OUTMSG2(("%s", s)); | |
798 | return; | |
799 | } | |
800 | ||
801 | monitor_output (s); | |
802 | } | |
bce7165d PA |
803 | #undef READ_BUFFER_LEN |
804 | } | |
805 | ||
5ac588cf PA |
806 | static void |
807 | win32_clear_inferiors (void) | |
808 | { | |
809 | if (current_process_handle != NULL) | |
810 | CloseHandle (current_process_handle); | |
811 | ||
f0045347 | 812 | for_each_thread (delete_thread_info); |
7928d571 | 813 | siginfo_er.ExceptionCode = 0; |
5ac588cf PA |
814 | clear_inferiors (); |
815 | } | |
816 | ||
a780ef4f PA |
817 | /* Implementation of target_ops::kill. */ |
818 | ||
c6885a57 TBA |
819 | int |
820 | win32_process_target::kill (process_info *process) | |
b80864fb DJ |
821 | { |
822 | TerminateProcess (current_process_handle, 0); | |
823 | for (;;) | |
824 | { | |
825 | if (!child_continue (DBG_CONTINUE, -1)) | |
826 | break; | |
827 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
828 | break; | |
829 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
830 | break; | |
bce7165d | 831 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
c0879059 | 832 | handle_output_debug_string (); |
b80864fb | 833 | } |
ed50f18f | 834 | |
5ac588cf | 835 | win32_clear_inferiors (); |
95954743 | 836 | |
95954743 PA |
837 | remove_process (process); |
838 | return 0; | |
b80864fb DJ |
839 | } |
840 | ||
ef2ddb33 PA |
841 | /* Implementation of target_ops::detach. */ |
842 | ||
9061c9cf TBA |
843 | int |
844 | win32_process_target::detach (process_info *process) | |
b80864fb | 845 | { |
bf914831 PA |
846 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
847 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
848 | #ifdef _WIN32_WCE |
849 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
850 | #else | |
851 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
852 | #endif | |
bf914831 PA |
853 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
854 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 855 | |
444d6139 PA |
856 | if (DebugSetProcessKillOnExit == NULL |
857 | || DebugActiveProcessStop == NULL) | |
858 | return -1; | |
b80864fb | 859 | |
444d6139 PA |
860 | { |
861 | struct thread_resume resume; | |
95954743 | 862 | resume.thread = minus_one_ptid; |
bd99dc85 | 863 | resume.kind = resume_continue; |
444d6139 | 864 | resume.sig = 0; |
0e4d7e35 | 865 | this->resume (&resume, 1); |
444d6139 PA |
866 | } |
867 | ||
868 | if (!DebugActiveProcessStop (current_process_id)) | |
5ac588cf PA |
869 | return -1; |
870 | ||
444d6139 | 871 | DebugSetProcessKillOnExit (FALSE); |
95954743 | 872 | remove_process (process); |
444d6139 | 873 | |
5ac588cf | 874 | win32_clear_inferiors (); |
444d6139 PA |
875 | return 0; |
876 | } | |
877 | ||
8adb37b9 TBA |
878 | void |
879 | win32_process_target::mourn (struct process_info *process) | |
505106cd PA |
880 | { |
881 | remove_process (process); | |
882 | } | |
883 | ||
ef2ddb33 PA |
884 | /* Implementation of target_ops::join. */ |
885 | ||
95a49a39 TBA |
886 | void |
887 | win32_process_target::join (int pid) | |
444d6139 | 888 | { |
d105de22 | 889 | HANDLE h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
5ac588cf PA |
890 | if (h != NULL) |
891 | { | |
892 | WaitForSingleObject (h, INFINITE); | |
893 | CloseHandle (h); | |
894 | } | |
b80864fb DJ |
895 | } |
896 | ||
13d3d99b TBA |
897 | /* Return true iff the thread with thread ID TID is alive. */ |
898 | bool | |
899 | win32_process_target::thread_alive (ptid_t ptid) | |
b80864fb | 900 | { |
b80864fb DJ |
901 | /* Our thread list is reliable; don't bother to poll target |
902 | threads. */ | |
8dc7b443 | 903 | return find_thread_ptid (ptid) != NULL; |
b80864fb DJ |
904 | } |
905 | ||
906 | /* Resume the inferior process. RESUME_INFO describes how we want | |
907 | to resume. */ | |
0e4d7e35 TBA |
908 | void |
909 | win32_process_target::resume (thread_resume *resume_info, size_t n) | |
b80864fb DJ |
910 | { |
911 | DWORD tid; | |
2ea28649 | 912 | enum gdb_signal sig; |
b80864fb | 913 | int step; |
41093d81 | 914 | win32_thread_info *th; |
b80864fb | 915 | DWORD continue_status = DBG_CONTINUE; |
95954743 | 916 | ptid_t ptid; |
b80864fb DJ |
917 | |
918 | /* This handles the very limited set of resume packets that GDB can | |
919 | currently produce. */ | |
920 | ||
d7e15655 | 921 | if (n == 1 && resume_info[0].thread == minus_one_ptid) |
b80864fb | 922 | tid = -1; |
2bd7c093 | 923 | else if (n > 1) |
b80864fb DJ |
924 | tid = -1; |
925 | else | |
926 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
927 | the Windows resume code do the right thing for thread switching. */ | |
928 | tid = current_event.dwThreadId; | |
929 | ||
d7e15655 | 930 | if (resume_info[0].thread != minus_one_ptid) |
b80864fb | 931 | { |
ce7715e2 | 932 | sig = gdb_signal_from_host (resume_info[0].sig); |
bd99dc85 | 933 | step = resume_info[0].kind == resume_step; |
b80864fb DJ |
934 | } |
935 | else | |
936 | { | |
ce7715e2 | 937 | sig = GDB_SIGNAL_0; |
b80864fb DJ |
938 | step = 0; |
939 | } | |
940 | ||
a493e3e2 | 941 | if (sig != GDB_SIGNAL_0) |
b80864fb DJ |
942 | { |
943 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
944 | { | |
ce7715e2 PA |
945 | OUTMSG (("Cannot continue with signal %s here.\n", |
946 | gdb_signal_to_string (sig))); | |
b80864fb DJ |
947 | } |
948 | else if (sig == last_sig) | |
949 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
950 | else | |
ce7715e2 PA |
951 | OUTMSG (("Can only continue with received signal %s.\n", |
952 | gdb_signal_to_string (last_sig))); | |
b80864fb DJ |
953 | } |
954 | ||
a493e3e2 | 955 | last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
956 | |
957 | /* Get context for the currently selected thread. */ | |
95954743 PA |
958 | ptid = debug_event_ptid (¤t_event); |
959 | th = thread_rec (ptid, FALSE); | |
b80864fb DJ |
960 | if (th) |
961 | { | |
a2abc7de PA |
962 | win32_prepare_to_resume (th); |
963 | ||
b80864fb DJ |
964 | if (th->context.ContextFlags) |
965 | { | |
b80864fb DJ |
966 | /* Move register values from the inferior into the thread |
967 | context structure. */ | |
968 | regcache_invalidate (); | |
969 | ||
970 | if (step) | |
ed50f18f PA |
971 | { |
972 | if (the_low_target.single_step != NULL) | |
973 | (*the_low_target.single_step) (th); | |
974 | else | |
975 | error ("Single stepping is not supported " | |
976 | "in this configuration.\n"); | |
977 | } | |
34b34921 | 978 | |
9c6c8194 | 979 | win32_set_thread_context (th); |
b80864fb DJ |
980 | th->context.ContextFlags = 0; |
981 | } | |
982 | } | |
983 | ||
984 | /* Allow continuing with the same signal that interrupted us. | |
985 | Otherwise complain. */ | |
986 | ||
987 | child_continue (continue_status, tid); | |
988 | } | |
989 | ||
255e7678 DJ |
990 | static void |
991 | win32_add_one_solib (const char *name, CORE_ADDR load_addr) | |
992 | { | |
993 | char buf[MAX_PATH + 1]; | |
994 | char buf2[MAX_PATH + 1]; | |
995 | ||
996 | #ifdef _WIN32_WCE | |
997 | WIN32_FIND_DATA w32_fd; | |
998 | WCHAR wname[MAX_PATH + 1]; | |
999 | mbstowcs (wname, name, MAX_PATH); | |
1000 | HANDLE h = FindFirstFile (wname, &w32_fd); | |
1001 | #else | |
1002 | WIN32_FIND_DATAA w32_fd; | |
1003 | HANDLE h = FindFirstFileA (name, &w32_fd); | |
1004 | #endif | |
1005 | ||
850a0f76 JB |
1006 | /* The symbols in a dll are offset by 0x1000, which is the |
1007 | offset from 0 of the first byte in an image - because | |
1008 | of the file header and the section alignment. */ | |
1009 | load_addr += 0x1000; | |
1010 | ||
255e7678 DJ |
1011 | if (h == INVALID_HANDLE_VALUE) |
1012 | strcpy (buf, name); | |
1013 | else | |
1014 | { | |
1015 | FindClose (h); | |
1016 | strcpy (buf, name); | |
1017 | #ifndef _WIN32_WCE | |
1018 | { | |
1019 | char cwd[MAX_PATH + 1]; | |
1020 | char *p; | |
1021 | if (GetCurrentDirectoryA (MAX_PATH + 1, cwd)) | |
1022 | { | |
1023 | p = strrchr (buf, '\\'); | |
1024 | if (p) | |
1025 | p[1] = '\0'; | |
1026 | SetCurrentDirectoryA (buf); | |
1027 | GetFullPathNameA (w32_fd.cFileName, MAX_PATH, buf, &p); | |
1028 | SetCurrentDirectoryA (cwd); | |
1029 | } | |
1030 | } | |
1031 | #endif | |
1032 | } | |
1033 | ||
cf6e3471 PA |
1034 | #ifndef _WIN32_WCE |
1035 | if (strcasecmp (buf, "ntdll.dll") == 0) | |
1036 | { | |
1037 | GetSystemDirectoryA (buf, sizeof (buf)); | |
1038 | strcat (buf, "\\ntdll.dll"); | |
1039 | } | |
1040 | #endif | |
1041 | ||
255e7678 | 1042 | #ifdef __CYGWIN__ |
81239425 | 1043 | cygwin_conv_path (CCP_WIN_A_TO_POSIX, buf, buf2, sizeof (buf2)); |
255e7678 DJ |
1044 | #else |
1045 | strcpy (buf2, buf); | |
1046 | #endif | |
1047 | ||
1048 | loaded_dll (buf2, load_addr); | |
1049 | } | |
1050 | ||
1051 | static char * | |
1052 | get_image_name (HANDLE h, void *address, int unicode) | |
1053 | { | |
1054 | static char buf[(2 * MAX_PATH) + 1]; | |
1055 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
1056 | char *address_ptr; | |
1057 | int len = 0; | |
1058 | char b[2]; | |
e8f0053d | 1059 | SIZE_T done; |
255e7678 DJ |
1060 | |
1061 | /* Attempt to read the name of the dll that was detected. | |
1062 | This is documented to work only when actively debugging | |
1063 | a program. It will not work for attached processes. */ | |
1064 | if (address == NULL) | |
1065 | return NULL; | |
1066 | ||
1067 | #ifdef _WIN32_WCE | |
1068 | /* Windows CE reports the address of the image name, | |
1069 | instead of an address of a pointer into the image name. */ | |
1070 | address_ptr = address; | |
1071 | #else | |
1072 | /* See if we could read the address of a string, and that the | |
1073 | address isn't null. */ | |
1074 | if (!ReadProcessMemory (h, address, &address_ptr, | |
1075 | sizeof (address_ptr), &done) | |
1076 | || done != sizeof (address_ptr) | |
1077 | || !address_ptr) | |
1078 | return NULL; | |
1079 | #endif | |
1080 | ||
1081 | /* Find the length of the string */ | |
1082 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) | |
1083 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
1084 | continue; | |
1085 | ||
1086 | if (!unicode) | |
1087 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
1088 | else | |
1089 | { | |
8d749320 | 1090 | WCHAR *unicode_address = XALLOCAVEC (WCHAR, len); |
255e7678 DJ |
1091 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), |
1092 | &done); | |
1093 | ||
1094 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
1095 | } | |
1096 | ||
1097 | return buf; | |
1098 | } | |
1099 | ||
1100 | typedef BOOL (WINAPI *winapi_EnumProcessModules) (HANDLE, HMODULE *, | |
1101 | DWORD, LPDWORD); | |
1102 | typedef BOOL (WINAPI *winapi_GetModuleInformation) (HANDLE, HMODULE, | |
1103 | LPMODULEINFO, DWORD); | |
1104 | typedef DWORD (WINAPI *winapi_GetModuleFileNameExA) (HANDLE, HMODULE, | |
1105 | LPSTR, DWORD); | |
1106 | ||
1107 | static winapi_EnumProcessModules win32_EnumProcessModules; | |
1108 | static winapi_GetModuleInformation win32_GetModuleInformation; | |
1109 | static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA; | |
1110 | ||
1111 | static BOOL | |
1112 | load_psapi (void) | |
1113 | { | |
1114 | static int psapi_loaded = 0; | |
1115 | static HMODULE dll = NULL; | |
1116 | ||
1117 | if (!psapi_loaded) | |
1118 | { | |
1119 | psapi_loaded = 1; | |
1120 | dll = LoadLibrary (TEXT("psapi.dll")); | |
1121 | if (!dll) | |
1122 | return FALSE; | |
1123 | win32_EnumProcessModules = | |
1124 | GETPROCADDRESS (dll, EnumProcessModules); | |
1125 | win32_GetModuleInformation = | |
1126 | GETPROCADDRESS (dll, GetModuleInformation); | |
1127 | win32_GetModuleFileNameExA = | |
1128 | GETPROCADDRESS (dll, GetModuleFileNameExA); | |
1129 | } | |
1130 | ||
1131 | return (win32_EnumProcessModules != NULL | |
1132 | && win32_GetModuleInformation != NULL | |
1133 | && win32_GetModuleFileNameExA != NULL); | |
1134 | } | |
1135 | ||
379a5e2d | 1136 | #ifndef _WIN32_WCE |
649ebbca | 1137 | |
f25b3fc3 JB |
1138 | /* Iterate over all DLLs currently mapped by our inferior, and |
1139 | add them to our list of solibs. */ | |
379a5e2d JB |
1140 | |
1141 | static void | |
f25b3fc3 | 1142 | win32_add_all_dlls (void) |
379a5e2d | 1143 | { |
379a5e2d JB |
1144 | size_t i; |
1145 | HMODULE dh_buf[1]; | |
1146 | HMODULE *DllHandle = dh_buf; | |
1147 | DWORD cbNeeded; | |
1148 | BOOL ok; | |
1149 | ||
379a5e2d JB |
1150 | if (!load_psapi ()) |
1151 | return; | |
1152 | ||
1153 | cbNeeded = 0; | |
1154 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1155 | DllHandle, | |
1156 | sizeof (HMODULE), | |
1157 | &cbNeeded); | |
1158 | ||
1159 | if (!ok || !cbNeeded) | |
1160 | return; | |
1161 | ||
1162 | DllHandle = (HMODULE *) alloca (cbNeeded); | |
1163 | if (!DllHandle) | |
1164 | return; | |
1165 | ||
1166 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1167 | DllHandle, | |
1168 | cbNeeded, | |
1169 | &cbNeeded); | |
1170 | if (!ok) | |
1171 | return; | |
1172 | ||
f25b3fc3 | 1173 | for (i = 1; i < ((size_t) cbNeeded / sizeof (HMODULE)); i++) |
379a5e2d JB |
1174 | { |
1175 | MODULEINFO mi; | |
1176 | char dll_name[MAX_PATH]; | |
1177 | ||
1178 | if (!(*win32_GetModuleInformation) (current_process_handle, | |
1179 | DllHandle[i], | |
1180 | &mi, | |
1181 | sizeof (mi))) | |
1182 | continue; | |
1183 | if ((*win32_GetModuleFileNameExA) (current_process_handle, | |
1184 | DllHandle[i], | |
1185 | dll_name, | |
1186 | MAX_PATH) == 0) | |
1187 | continue; | |
850a0f76 | 1188 | win32_add_one_solib (dll_name, (CORE_ADDR) (uintptr_t) mi.lpBaseOfDll); |
379a5e2d JB |
1189 | } |
1190 | } | |
1191 | #endif | |
1192 | ||
255e7678 DJ |
1193 | typedef HANDLE (WINAPI *winapi_CreateToolhelp32Snapshot) (DWORD, DWORD); |
1194 | typedef BOOL (WINAPI *winapi_Module32First) (HANDLE, LPMODULEENTRY32); | |
1195 | typedef BOOL (WINAPI *winapi_Module32Next) (HANDLE, LPMODULEENTRY32); | |
1196 | ||
d763de10 | 1197 | /* Handle a DLL load event. |
255e7678 | 1198 | |
d763de10 JB |
1199 | This function assumes that this event did not occur during inferior |
1200 | initialization, where their event info may be incomplete (see | |
1201 | do_initial_child_stuff and win32_add_all_dlls for more info on | |
1202 | how we handle DLL loading during that phase). */ | |
255e7678 DJ |
1203 | |
1204 | static void | |
1205 | handle_load_dll (void) | |
1206 | { | |
1207 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
d763de10 | 1208 | char *dll_name; |
255e7678 | 1209 | |
d763de10 JB |
1210 | dll_name = get_image_name (current_process_handle, |
1211 | event->lpImageName, event->fUnicode); | |
255e7678 DJ |
1212 | if (!dll_name) |
1213 | return; | |
1214 | ||
850a0f76 | 1215 | win32_add_one_solib (dll_name, (CORE_ADDR) (uintptr_t) event->lpBaseOfDll); |
255e7678 DJ |
1216 | } |
1217 | ||
f25b3fc3 JB |
1218 | /* Handle a DLL unload event. |
1219 | ||
1220 | This function assumes that this event did not occur during inferior | |
1221 | initialization, where their event info may be incomplete (see | |
1222 | do_initial_child_stuff and win32_add_one_solib for more info | |
1223 | on how we handle DLL loading during that phase). */ | |
1224 | ||
255e7678 DJ |
1225 | static void |
1226 | handle_unload_dll (void) | |
1227 | { | |
1228 | CORE_ADDR load_addr = | |
e8f0053d | 1229 | (CORE_ADDR) (uintptr_t) current_event.u.UnloadDll.lpBaseOfDll; |
850a0f76 JB |
1230 | |
1231 | /* The symbols in a dll are offset by 0x1000, which is the | |
1232 | offset from 0 of the first byte in an image - because | |
1233 | of the file header and the section alignment. */ | |
255e7678 DJ |
1234 | load_addr += 0x1000; |
1235 | unloaded_dll (NULL, load_addr); | |
1236 | } | |
1237 | ||
34b34921 | 1238 | static void |
b80864fb DJ |
1239 | handle_exception (struct target_waitstatus *ourstatus) |
1240 | { | |
b80864fb DJ |
1241 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
1242 | ||
7928d571 HD |
1243 | memcpy (&siginfo_er, ¤t_event.u.Exception.ExceptionRecord, |
1244 | sizeof siginfo_er); | |
1245 | ||
b80864fb DJ |
1246 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
1247 | ||
b80864fb DJ |
1248 | switch (code) |
1249 | { | |
1250 | case EXCEPTION_ACCESS_VIOLATION: | |
1251 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
a493e3e2 | 1252 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
b80864fb DJ |
1253 | break; |
1254 | case STATUS_STACK_OVERFLOW: | |
1255 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
a493e3e2 | 1256 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
b80864fb DJ |
1257 | break; |
1258 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1259 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
a493e3e2 | 1260 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1261 | break; |
1262 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1263 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
a493e3e2 | 1264 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1265 | break; |
1266 | case STATUS_FLOAT_INEXACT_RESULT: | |
1267 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
a493e3e2 | 1268 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1269 | break; |
1270 | case STATUS_FLOAT_INVALID_OPERATION: | |
1271 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
a493e3e2 | 1272 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1273 | break; |
1274 | case STATUS_FLOAT_OVERFLOW: | |
1275 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
a493e3e2 | 1276 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1277 | break; |
1278 | case STATUS_FLOAT_STACK_CHECK: | |
1279 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
a493e3e2 | 1280 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1281 | break; |
1282 | case STATUS_FLOAT_UNDERFLOW: | |
1283 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
a493e3e2 | 1284 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1285 | break; |
1286 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
1287 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
a493e3e2 | 1288 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1289 | break; |
1290 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
1291 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
a493e3e2 | 1292 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1293 | break; |
1294 | case STATUS_INTEGER_OVERFLOW: | |
1295 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
a493e3e2 | 1296 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1297 | break; |
1298 | case EXCEPTION_BREAKPOINT: | |
1299 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
a493e3e2 | 1300 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
ed50f18f PA |
1301 | #ifdef _WIN32_WCE |
1302 | /* Remove the initial breakpoint. */ | |
1303 | check_breakpoints ((CORE_ADDR) (long) current_event | |
1b3f6016 | 1304 | .u.Exception.ExceptionRecord.ExceptionAddress); |
ed50f18f | 1305 | #endif |
b80864fb DJ |
1306 | break; |
1307 | case DBG_CONTROL_C: | |
1308 | OUTMSG2 (("DBG_CONTROL_C")); | |
a493e3e2 | 1309 | ourstatus->value.sig = GDB_SIGNAL_INT; |
b80864fb DJ |
1310 | break; |
1311 | case DBG_CONTROL_BREAK: | |
1312 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
a493e3e2 | 1313 | ourstatus->value.sig = GDB_SIGNAL_INT; |
b80864fb DJ |
1314 | break; |
1315 | case EXCEPTION_SINGLE_STEP: | |
1316 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
a493e3e2 | 1317 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1318 | break; |
1319 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
1320 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
a493e3e2 | 1321 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
b80864fb DJ |
1322 | break; |
1323 | case EXCEPTION_PRIV_INSTRUCTION: | |
1324 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
a493e3e2 | 1325 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
b80864fb DJ |
1326 | break; |
1327 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1328 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
a493e3e2 | 1329 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
b80864fb DJ |
1330 | break; |
1331 | default: | |
1332 | if (current_event.u.Exception.dwFirstChance) | |
34b34921 PA |
1333 | { |
1334 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1335 | return; | |
1336 | } | |
dfe07582 CV |
1337 | OUTMSG2 (("gdbserver: unknown target exception 0x%08x at 0x%s", |
1338 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1339 | phex_nz ((uintptr_t) current_event.u.Exception.ExceptionRecord. | |
1340 | ExceptionAddress, sizeof (uintptr_t)))); | |
a493e3e2 | 1341 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
b80864fb DJ |
1342 | break; |
1343 | } | |
1344 | OUTMSG2 (("\n")); | |
1345 | last_sig = ourstatus->value.sig; | |
b80864fb DJ |
1346 | } |
1347 | ||
4d5d1aaa | 1348 | |
34b34921 | 1349 | static void |
9c80ecd6 | 1350 | suspend_one_thread (thread_info *thread) |
4d5d1aaa | 1351 | { |
6afd337d | 1352 | win32_thread_info *th = (win32_thread_info *) thread_target_data (thread); |
4d5d1aaa PA |
1353 | |
1354 | if (!th->suspended) | |
1355 | { | |
1356 | if (SuspendThread (th->h) == (DWORD) -1) | |
1357 | { | |
1358 | DWORD err = GetLastError (); | |
1359 | OUTMSG (("warning: SuspendThread failed in suspend_one_thread, " | |
1360 | "(error %d): %s\n", (int) err, strwinerror (err))); | |
1361 | } | |
1362 | else | |
1363 | th->suspended = 1; | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | static void | |
1368 | fake_breakpoint_event (void) | |
b80864fb | 1369 | { |
4d5d1aaa | 1370 | OUTMSG2(("fake_breakpoint_event\n")); |
b80864fb | 1371 | |
4d5d1aaa PA |
1372 | faked_breakpoint = 1; |
1373 | ||
1374 | memset (¤t_event, 0, sizeof (current_event)); | |
1375 | current_event.dwThreadId = main_thread_id; | |
1376 | current_event.dwDebugEventCode = EXCEPTION_DEBUG_EVENT; | |
1377 | current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1378 | = EXCEPTION_BREAKPOINT; | |
1379 | ||
f0045347 | 1380 | for_each_thread (suspend_one_thread); |
4d5d1aaa PA |
1381 | } |
1382 | ||
b65d95c5 DJ |
1383 | #ifdef _WIN32_WCE |
1384 | static int | |
1385 | auto_delete_breakpoint (CORE_ADDR stop_pc) | |
1386 | { | |
1387 | return 1; | |
1388 | } | |
1389 | #endif | |
1390 | ||
4d5d1aaa PA |
1391 | /* Get the next event from the child. */ |
1392 | ||
1393 | static int | |
1394 | get_child_debug_event (struct target_waitstatus *ourstatus) | |
1395 | { | |
95954743 PA |
1396 | ptid_t ptid; |
1397 | ||
a493e3e2 | 1398 | last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
1399 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
1400 | ||
4d5d1aaa PA |
1401 | /* Check if GDB sent us an interrupt request. */ |
1402 | check_remote_input_interrupt_request (); | |
1403 | ||
1404 | if (soft_interrupt_requested) | |
1405 | { | |
1406 | soft_interrupt_requested = 0; | |
1407 | fake_breakpoint_event (); | |
1408 | goto gotevent; | |
1409 | } | |
1410 | ||
d97903b2 PA |
1411 | #ifndef _WIN32_WCE |
1412 | attaching = 0; | |
1413 | #else | |
1414 | if (attaching) | |
1415 | { | |
1416 | /* WinCE doesn't set an initial breakpoint automatically. To | |
1b3f6016 PA |
1417 | stop the inferior, we flush all currently pending debug |
1418 | events -- the thread list and the dll list are always | |
1419 | reported immediatelly without delay, then, we suspend all | |
1420 | threads and pretend we saw a trap at the current PC of the | |
1421 | main thread. | |
1422 | ||
1423 | Contrary to desktop Windows, Windows CE *does* report the dll | |
1424 | names on LOAD_DLL_DEBUG_EVENTs resulting from a | |
1425 | DebugActiveProcess call. This limits the way we can detect | |
1426 | if all the dlls have already been reported. If we get a real | |
1427 | debug event before leaving attaching, the worst that will | |
1428 | happen is the user will see a spurious breakpoint. */ | |
d97903b2 PA |
1429 | |
1430 | current_event.dwDebugEventCode = 0; | |
1431 | if (!WaitForDebugEvent (¤t_event, 0)) | |
1b3f6016 PA |
1432 | { |
1433 | OUTMSG2(("no attach events left\n")); | |
1434 | fake_breakpoint_event (); | |
1435 | attaching = 0; | |
1436 | } | |
d97903b2 | 1437 | else |
1b3f6016 | 1438 | OUTMSG2(("got attach event\n")); |
d97903b2 PA |
1439 | } |
1440 | else | |
1441 | #endif | |
1442 | { | |
30baf67b | 1443 | /* Keep the wait time low enough for comfortable remote |
1b3f6016 PA |
1444 | interruption, but high enough so gdbserver doesn't become a |
1445 | bottleneck. */ | |
d97903b2 | 1446 | if (!WaitForDebugEvent (¤t_event, 250)) |
912cf4ba PA |
1447 | { |
1448 | DWORD e = GetLastError(); | |
1449 | ||
1450 | if (e == ERROR_PIPE_NOT_CONNECTED) | |
1451 | { | |
1452 | /* This will happen if the loader fails to succesfully | |
1453 | load the application, e.g., if the main executable | |
1454 | tries to pull in a non-existing export from a | |
1455 | DLL. */ | |
1456 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1457 | ourstatus->value.integer = 1; | |
1458 | return 1; | |
1459 | } | |
1460 | ||
1461 | return 0; | |
1462 | } | |
d97903b2 | 1463 | } |
4d5d1aaa PA |
1464 | |
1465 | gotevent: | |
b80864fb | 1466 | |
34b34921 | 1467 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
1468 | { |
1469 | case CREATE_THREAD_DEBUG_EVENT: | |
1470 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
dfe07582 | 1471 | "for pid=%u tid=%x)\n", |
b80864fb DJ |
1472 | (unsigned) current_event.dwProcessId, |
1473 | (unsigned) current_event.dwThreadId)); | |
1474 | ||
1475 | /* Record the existence of this thread. */ | |
95954743 PA |
1476 | child_add_thread (current_event.dwProcessId, |
1477 | current_event.dwThreadId, | |
711e434b PM |
1478 | current_event.u.CreateThread.hThread, |
1479 | current_event.u.CreateThread.lpThreadLocalBase); | |
b80864fb DJ |
1480 | break; |
1481 | ||
1482 | case EXIT_THREAD_DEBUG_EVENT: | |
1483 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
dfe07582 | 1484 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1485 | (unsigned) current_event.dwProcessId, |
1486 | (unsigned) current_event.dwThreadId)); | |
95954743 PA |
1487 | child_delete_thread (current_event.dwProcessId, |
1488 | current_event.dwThreadId); | |
aeeb81d1 | 1489 | |
9c80ecd6 | 1490 | current_thread = get_first_thread (); |
aeeb81d1 | 1491 | return 1; |
b80864fb DJ |
1492 | |
1493 | case CREATE_PROCESS_DEBUG_EVENT: | |
1494 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
dfe07582 | 1495 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1496 | (unsigned) current_event.dwProcessId, |
1497 | (unsigned) current_event.dwThreadId)); | |
1498 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
1499 | ||
1500 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1501 | main_thread_id = current_event.dwThreadId; | |
1502 | ||
b80864fb | 1503 | /* Add the main thread. */ |
95954743 PA |
1504 | child_add_thread (current_event.dwProcessId, |
1505 | main_thread_id, | |
711e434b PM |
1506 | current_event.u.CreateProcessInfo.hThread, |
1507 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
b80864fb | 1508 | |
ed50f18f | 1509 | #ifdef _WIN32_WCE |
d97903b2 PA |
1510 | if (!attaching) |
1511 | { | |
1512 | /* Windows CE doesn't set the initial breakpoint | |
1513 | automatically like the desktop versions of Windows do. | |
1514 | We add it explicitly here. It will be removed as soon as | |
1515 | it is hit. */ | |
1516 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
1517 | .CreateProcessInfo.lpStartAddress, | |
b65d95c5 | 1518 | auto_delete_breakpoint); |
d97903b2 | 1519 | } |
ed50f18f | 1520 | #endif |
b80864fb DJ |
1521 | break; |
1522 | ||
1523 | case EXIT_PROCESS_DEBUG_EVENT: | |
1524 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
dfe07582 | 1525 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1526 | (unsigned) current_event.dwProcessId, |
1527 | (unsigned) current_event.dwThreadId)); | |
559e7e50 EZ |
1528 | { |
1529 | DWORD exit_status = current_event.u.ExitProcess.dwExitCode; | |
1530 | /* If the exit status looks like a fatal exception, but we | |
1531 | don't recognize the exception's code, make the original | |
1532 | exit status value available, to avoid losing information. */ | |
1533 | int exit_signal | |
1534 | = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1; | |
1535 | if (exit_signal == -1) | |
1536 | { | |
1537 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1538 | ourstatus->value.integer = exit_status; | |
1539 | } | |
1540 | else | |
1541 | { | |
1542 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1543 | ourstatus->value.sig = gdb_signal_from_host (exit_signal); | |
1544 | } | |
1545 | } | |
18aae699 | 1546 | child_continue (DBG_CONTINUE, -1); |
b80864fb | 1547 | CloseHandle (current_process_handle); |
9d606399 | 1548 | current_process_handle = NULL; |
b80864fb DJ |
1549 | break; |
1550 | ||
1551 | case LOAD_DLL_DEBUG_EVENT: | |
1552 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
dfe07582 | 1553 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1554 | (unsigned) current_event.dwProcessId, |
1555 | (unsigned) current_event.dwThreadId)); | |
1556 | CloseHandle (current_event.u.LoadDll.hFile); | |
f25b3fc3 JB |
1557 | if (! child_initialization_done) |
1558 | break; | |
255e7678 | 1559 | handle_load_dll (); |
b80864fb DJ |
1560 | |
1561 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
a493e3e2 | 1562 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1563 | break; |
1564 | ||
1565 | case UNLOAD_DLL_DEBUG_EVENT: | |
1566 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
dfe07582 | 1567 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1568 | (unsigned) current_event.dwProcessId, |
1569 | (unsigned) current_event.dwThreadId)); | |
f25b3fc3 JB |
1570 | if (! child_initialization_done) |
1571 | break; | |
255e7678 DJ |
1572 | handle_unload_dll (); |
1573 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
a493e3e2 | 1574 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1575 | break; |
1576 | ||
1577 | case EXCEPTION_DEBUG_EVENT: | |
1578 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
dfe07582 | 1579 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1580 | (unsigned) current_event.dwProcessId, |
1581 | (unsigned) current_event.dwThreadId)); | |
34b34921 | 1582 | handle_exception (ourstatus); |
b80864fb DJ |
1583 | break; |
1584 | ||
1585 | case OUTPUT_DEBUG_STRING_EVENT: | |
1586 | /* A message from the kernel (or Cygwin). */ | |
1587 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
dfe07582 | 1588 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1589 | (unsigned) current_event.dwProcessId, |
1590 | (unsigned) current_event.dwThreadId)); | |
c0879059 | 1591 | handle_output_debug_string (); |
b80864fb DJ |
1592 | break; |
1593 | ||
1594 | default: | |
1595 | OUTMSG2 (("gdbserver: kernel event unknown " | |
dfe07582 | 1596 | "for pid=%u tid=%x code=%x\n", |
b80864fb DJ |
1597 | (unsigned) current_event.dwProcessId, |
1598 | (unsigned) current_event.dwThreadId, | |
dfe07582 | 1599 | (unsigned) current_event.dwDebugEventCode)); |
b80864fb DJ |
1600 | break; |
1601 | } | |
1602 | ||
aeeb81d1 | 1603 | ptid = debug_event_ptid (¤t_event); |
8dc7b443 | 1604 | current_thread = find_thread_ptid (ptid); |
4d5d1aaa | 1605 | return 1; |
b80864fb DJ |
1606 | } |
1607 | ||
1608 | /* Wait for the inferior process to change state. | |
1609 | STATUS will be filled in with a response code to send to GDB. | |
1610 | Returns the signal which caused the process to stop. */ | |
6532e7e3 TBA |
1611 | ptid_t |
1612 | win32_process_target::wait (ptid_t ptid, target_waitstatus *ourstatus, | |
1613 | int options) | |
b80864fb | 1614 | { |
442ea881 | 1615 | struct regcache *regcache; |
95954743 | 1616 | |
4210d83e PA |
1617 | if (cached_status.kind != TARGET_WAITKIND_IGNORE) |
1618 | { | |
1619 | /* The core always does a wait after creating the inferior, and | |
1620 | do_initial_child_stuff already ran the inferior to the | |
1621 | initial breakpoint (or an exit, if creating the process | |
1622 | fails). Report it now. */ | |
1623 | *ourstatus = cached_status; | |
1624 | cached_status.kind = TARGET_WAITKIND_IGNORE; | |
1625 | return debug_event_ptid (¤t_event); | |
1626 | } | |
1627 | ||
b80864fb DJ |
1628 | while (1) |
1629 | { | |
5b1c542e | 1630 | if (!get_child_debug_event (ourstatus)) |
4d5d1aaa | 1631 | continue; |
b80864fb | 1632 | |
5b1c542e | 1633 | switch (ourstatus->kind) |
b80864fb | 1634 | { |
34b34921 | 1635 | case TARGET_WAITKIND_EXITED: |
b80864fb | 1636 | OUTMSG2 (("Child exited with retcode = %x\n", |
5b1c542e | 1637 | ourstatus->value.integer)); |
5ac588cf | 1638 | win32_clear_inferiors (); |
f2907e49 | 1639 | return ptid_t (current_event.dwProcessId); |
34b34921 | 1640 | case TARGET_WAITKIND_STOPPED: |
559e7e50 | 1641 | case TARGET_WAITKIND_SIGNALLED: |
1b3f6016 | 1642 | case TARGET_WAITKIND_LOADED: |
f72f3e60 | 1643 | OUTMSG2 (("Child Stopped with signal = %d \n", |
10357975 | 1644 | ourstatus->value.sig)); |
b80864fb | 1645 | |
0bfdf32f | 1646 | regcache = get_thread_regcache (current_thread, 1); |
442ea881 | 1647 | child_fetch_inferior_registers (regcache, -1); |
95954743 | 1648 | return debug_event_ptid (¤t_event); |
1b3f6016 | 1649 | default: |
5b1c542e | 1650 | OUTMSG (("Ignoring unknown internal event, %d\n", ourstatus->kind)); |
1b3f6016 PA |
1651 | /* fall-through */ |
1652 | case TARGET_WAITKIND_SPURIOUS: | |
34b34921 PA |
1653 | /* do nothing, just continue */ |
1654 | child_continue (DBG_CONTINUE, -1); | |
1655 | break; | |
b80864fb | 1656 | } |
b80864fb DJ |
1657 | } |
1658 | } | |
1659 | ||
1660 | /* Fetch registers from the inferior process. | |
1661 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
a5a4d4cd TBA |
1662 | void |
1663 | win32_process_target::fetch_registers (regcache *regcache, int regno) | |
b80864fb | 1664 | { |
442ea881 | 1665 | child_fetch_inferior_registers (regcache, regno); |
b80864fb DJ |
1666 | } |
1667 | ||
1668 | /* Store registers to the inferior process. | |
1669 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
a5a4d4cd TBA |
1670 | void |
1671 | win32_process_target::store_registers (regcache *regcache, int regno) | |
b80864fb | 1672 | { |
442ea881 | 1673 | child_store_inferior_registers (regcache, regno); |
b80864fb DJ |
1674 | } |
1675 | ||
1676 | /* Read memory from the inferior process. This should generally be | |
1677 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1678 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
e2558df3 TBA |
1679 | int |
1680 | win32_process_target::read_memory (CORE_ADDR memaddr, unsigned char *myaddr, | |
1681 | int len) | |
b80864fb | 1682 | { |
ed50f18f | 1683 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1684 | } |
1685 | ||
1686 | /* Write memory to the inferior process. This should generally be | |
1687 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1688 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1689 | Returns 0 on success and errno on failure. */ | |
e2558df3 TBA |
1690 | int |
1691 | win32_process_target::write_memory (CORE_ADDR memaddr, | |
1692 | const unsigned char *myaddr, int len) | |
b80864fb DJ |
1693 | { |
1694 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1695 | } | |
1696 | ||
7390519e | 1697 | /* Send an interrupt request to the inferior process. */ |
eb497a2a TBA |
1698 | void |
1699 | win32_process_target::request_interrupt () | |
7390519e PA |
1700 | { |
1701 | winapi_DebugBreakProcess DebugBreakProcess; | |
1702 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1703 | ||
1704 | #ifdef _WIN32_WCE | |
1705 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1706 | #else | |
1707 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1708 | #endif | |
1709 | ||
1710 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1711 | ||
1712 | if (GenerateConsoleCtrlEvent != NULL | |
1713 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1714 | return; | |
1715 | ||
1716 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1717 | not a process group id. | |
1718 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1719 | breakpoint exception in the interior process. */ | |
1720 | ||
1721 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1722 | ||
1723 | if (DebugBreakProcess != NULL | |
1724 | && DebugBreakProcess (current_process_handle)) | |
1725 | return; | |
1726 | ||
4d5d1aaa PA |
1727 | /* Last resort, suspend all threads manually. */ |
1728 | soft_interrupt_requested = 1; | |
7390519e PA |
1729 | } |
1730 | ||
22aa6223 TBA |
1731 | bool |
1732 | win32_process_target::supports_hardware_single_step () | |
1733 | { | |
1734 | return true; | |
1735 | } | |
1736 | ||
59a016f0 PA |
1737 | #ifdef _WIN32_WCE |
1738 | int | |
1739 | win32_error_to_fileio_error (DWORD err) | |
1740 | { | |
1741 | switch (err) | |
1742 | { | |
1743 | case ERROR_BAD_PATHNAME: | |
1744 | case ERROR_FILE_NOT_FOUND: | |
1745 | case ERROR_INVALID_NAME: | |
1746 | case ERROR_PATH_NOT_FOUND: | |
1747 | return FILEIO_ENOENT; | |
1748 | case ERROR_CRC: | |
1749 | case ERROR_IO_DEVICE: | |
1750 | case ERROR_OPEN_FAILED: | |
1751 | return FILEIO_EIO; | |
1752 | case ERROR_INVALID_HANDLE: | |
1753 | return FILEIO_EBADF; | |
1754 | case ERROR_ACCESS_DENIED: | |
1755 | case ERROR_SHARING_VIOLATION: | |
1756 | return FILEIO_EACCES; | |
1757 | case ERROR_NOACCESS: | |
1758 | return FILEIO_EFAULT; | |
1759 | case ERROR_BUSY: | |
1760 | return FILEIO_EBUSY; | |
1761 | case ERROR_ALREADY_EXISTS: | |
1762 | case ERROR_FILE_EXISTS: | |
1763 | return FILEIO_EEXIST; | |
1764 | case ERROR_BAD_DEVICE: | |
1765 | return FILEIO_ENODEV; | |
1766 | case ERROR_DIRECTORY: | |
1767 | return FILEIO_ENOTDIR; | |
1768 | case ERROR_FILENAME_EXCED_RANGE: | |
1769 | case ERROR_INVALID_DATA: | |
1770 | case ERROR_INVALID_PARAMETER: | |
1771 | case ERROR_NEGATIVE_SEEK: | |
1772 | return FILEIO_EINVAL; | |
1773 | case ERROR_TOO_MANY_OPEN_FILES: | |
1774 | return FILEIO_EMFILE; | |
1775 | case ERROR_HANDLE_DISK_FULL: | |
1776 | case ERROR_DISK_FULL: | |
1777 | return FILEIO_ENOSPC; | |
1778 | case ERROR_WRITE_PROTECT: | |
1779 | return FILEIO_EROFS; | |
1780 | case ERROR_NOT_SUPPORTED: | |
1781 | return FILEIO_ENOSYS; | |
1782 | } | |
1783 | ||
1784 | return FILEIO_EUNKNOWN; | |
1785 | } | |
1786 | ||
ea06bbaa TBA |
1787 | void |
1788 | win32_process_target::hostio_last_error (char *buf) | |
59a016f0 PA |
1789 | { |
1790 | DWORD winerr = GetLastError (); | |
1791 | int fileio_err = win32_error_to_fileio_error (winerr); | |
1792 | sprintf (buf, "F-1,%x", fileio_err); | |
1793 | } | |
1794 | #endif | |
1795 | ||
d7abedf7 TBA |
1796 | bool |
1797 | win32_process_target::supports_qxfer_siginfo () | |
1798 | { | |
1799 | return true; | |
1800 | } | |
1801 | ||
7928d571 HD |
1802 | /* Write Windows signal info. */ |
1803 | ||
d7abedf7 TBA |
1804 | int |
1805 | win32_process_target::qxfer_siginfo (const char *annex, | |
1806 | unsigned char *readbuf, | |
1807 | unsigned const char *writebuf, | |
1808 | CORE_ADDR offset, int len) | |
7928d571 HD |
1809 | { |
1810 | if (siginfo_er.ExceptionCode == 0) | |
1811 | return -1; | |
1812 | ||
1813 | if (readbuf == nullptr) | |
1814 | return -1; | |
1815 | ||
1816 | if (offset > sizeof (siginfo_er)) | |
1817 | return -1; | |
1818 | ||
1819 | if (offset + len > sizeof (siginfo_er)) | |
1820 | len = sizeof (siginfo_er) - offset; | |
1821 | ||
1822 | memcpy (readbuf, (char *) &siginfo_er + offset, len); | |
1823 | ||
1824 | return len; | |
1825 | } | |
1826 | ||
4e2e869c TBA |
1827 | bool |
1828 | win32_process_target::supports_get_tib_address () | |
1829 | { | |
1830 | return true; | |
1831 | } | |
1832 | ||
711e434b PM |
1833 | /* Write Windows OS Thread Information Block address. */ |
1834 | ||
4e2e869c TBA |
1835 | int |
1836 | win32_process_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) | |
711e434b PM |
1837 | { |
1838 | win32_thread_info *th; | |
1839 | th = thread_rec (ptid, 0); | |
1840 | if (th == NULL) | |
1841 | return 0; | |
1842 | if (addr != NULL) | |
1843 | *addr = th->thread_local_base; | |
1844 | return 1; | |
1845 | } | |
1846 | ||
fb78e89c AT |
1847 | /* Implementation of the target_ops method "sw_breakpoint_from_kind". */ |
1848 | ||
1849 | static const gdb_byte * | |
1850 | win32_sw_breakpoint_from_kind (int kind, int *size) | |
1851 | { | |
1852 | *size = the_low_target.breakpoint_len; | |
1853 | return the_low_target.breakpoint; | |
1854 | } | |
1855 | ||
5ef9273d TBA |
1856 | /* The win32 target ops object. */ |
1857 | ||
1858 | static win32_process_target the_win32_target; | |
1859 | ||
5b6d1e4f | 1860 | static process_stratum_target win32_target_ops = { |
fb78e89c AT |
1861 | NULL, /* enable_btrace */ |
1862 | NULL, /* disable_btrace */ | |
1863 | NULL, /* read_btrace */ | |
1864 | NULL, /* read_btrace_conf */ | |
1865 | NULL, /* supports_range_stepping */ | |
1866 | NULL, /* pid_to_exec_file */ | |
1867 | NULL, /* multifs_open */ | |
1868 | NULL, /* multifs_unlink */ | |
1869 | NULL, /* multifs_readlink */ | |
1870 | NULL, /* breakpoint_kind_from_pc */ | |
1871 | win32_sw_breakpoint_from_kind, | |
5ef9273d TBA |
1872 | NULL, /* thread_name */ |
1873 | NULL, /* breakpoint_kind_from_current_state */ | |
1874 | NULL, /* supports_software_single_step */ | |
1875 | NULL, /* supports_catch_syscall */ | |
1876 | NULL, /* get_ipa_tdesc_idx */ | |
1877 | NULL, /* thread_handle */ | |
1878 | &the_win32_target, | |
b80864fb DJ |
1879 | }; |
1880 | ||
1881 | /* Initialize the Win32 backend. */ | |
1882 | void | |
1883 | initialize_low (void) | |
1884 | { | |
1885 | set_target_ops (&win32_target_ops); | |
d05b4ac3 | 1886 | the_low_target.arch_setup (); |
b80864fb | 1887 | } |