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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 | 38 | |
4834dad0 TT |
39 | using namespace windows_nat; |
40 | ||
b80864fb DJ |
41 | #ifndef USE_WIN32API |
42 | #include <sys/cygwin.h> | |
43 | #endif | |
44 | ||
10357975 PA |
45 | #define OUTMSG(X) do { printf X; fflush (stderr); } while (0) |
46 | ||
47 | #define OUTMSG2(X) \ | |
48 | do \ | |
49 | { \ | |
50 | if (debug_threads) \ | |
51 | { \ | |
52 | printf X; \ | |
53 | fflush (stderr); \ | |
54 | } \ | |
55 | } while (0) | |
ed50f18f PA |
56 | |
57 | #ifndef _T | |
58 | #define _T(x) TEXT (x) | |
59 | #endif | |
60 | ||
61 | #ifndef COUNTOF | |
62 | #define COUNTOF(STR) (sizeof (STR) / sizeof ((STR)[0])) | |
b80864fb DJ |
63 | #endif |
64 | ||
bf914831 PA |
65 | #ifdef _WIN32_WCE |
66 | # define GETPROCADDRESS(DLL, PROC) \ | |
67 | ((winapi_ ## PROC) GetProcAddress (DLL, TEXT (#PROC))) | |
68 | #else | |
69 | # define GETPROCADDRESS(DLL, PROC) \ | |
70 | ((winapi_ ## PROC) GetProcAddress (DLL, #PROC)) | |
71 | #endif | |
72 | ||
b80864fb DJ |
73 | int using_threads = 1; |
74 | ||
75 | /* Globals. */ | |
d97903b2 | 76 | static int attaching = 0; |
b80864fb | 77 | |
4210d83e PA |
78 | /* A status that hasn't been reported to the core yet, and so |
79 | win32_wait should return it next, instead of fetching the next | |
80 | debug event off the win32 API. */ | |
81 | static struct target_waitstatus cached_status; | |
82 | ||
4d5d1aaa PA |
83 | /* Non zero if an interrupt request is to be satisfied by suspending |
84 | all threads. */ | |
85 | static int soft_interrupt_requested = 0; | |
86 | ||
87 | /* Non zero if the inferior is stopped in a simulated breakpoint done | |
88 | by suspending all the threads. */ | |
89 | static int faked_breakpoint = 0; | |
90 | ||
3aee8918 PA |
91 | const struct target_desc *win32_tdesc; |
92 | ||
ed50f18f | 93 | #define NUM_REGS (the_low_target.num_regs) |
b80864fb | 94 | |
7a9a7487 MG |
95 | typedef BOOL (WINAPI *winapi_DebugActiveProcessStop) (DWORD dwProcessId); |
96 | typedef BOOL (WINAPI *winapi_DebugSetProcessKillOnExit) (BOOL KillOnExit); | |
97 | typedef BOOL (WINAPI *winapi_DebugBreakProcess) (HANDLE); | |
98 | typedef BOOL (WINAPI *winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD); | |
b80864fb | 99 | |
379a5e2d | 100 | #ifndef _WIN32_WCE |
f25b3fc3 | 101 | static void win32_add_all_dlls (void); |
379a5e2d | 102 | #endif |
34b34921 | 103 | |
b80864fb DJ |
104 | /* Get the thread ID from the current selected inferior (the current |
105 | thread). */ | |
95954743 | 106 | static ptid_t |
0bfdf32f | 107 | current_thread_ptid (void) |
b80864fb | 108 | { |
80894984 | 109 | return current_ptid; |
95954743 PA |
110 | } |
111 | ||
112 | /* The current debug event from WaitForDebugEvent. */ | |
113 | static ptid_t | |
114 | debug_event_ptid (DEBUG_EVENT *event) | |
115 | { | |
fd79271b | 116 | return ptid_t (event->dwProcessId, event->dwThreadId, 0); |
b80864fb DJ |
117 | } |
118 | ||
9c6c8194 PA |
119 | /* Get the thread context of the thread associated with TH. */ |
120 | ||
121 | static void | |
e56f8ccb | 122 | win32_get_thread_context (windows_thread_info *th) |
9c6c8194 PA |
123 | { |
124 | memset (&th->context, 0, sizeof (CONTEXT)); | |
a2abc7de | 125 | (*the_low_target.get_thread_context) (th); |
9c6c8194 PA |
126 | #ifdef _WIN32_WCE |
127 | memcpy (&th->base_context, &th->context, sizeof (CONTEXT)); | |
128 | #endif | |
129 | } | |
130 | ||
131 | /* Set the thread context of the thread associated with TH. */ | |
132 | ||
133 | static void | |
e56f8ccb | 134 | win32_set_thread_context (windows_thread_info *th) |
9c6c8194 PA |
135 | { |
136 | #ifdef _WIN32_WCE | |
137 | /* Calling SuspendThread on a thread that is running kernel code | |
138 | will report that the suspending was successful, but in fact, that | |
139 | will often not be true. In those cases, the context returned by | |
140 | GetThreadContext will not be correct by the time the thread | |
141 | stops, hence we can't set that context back into the thread when | |
30baf67b | 142 | resuming - it will most likely crash the inferior. |
9c6c8194 PA |
143 | Unfortunately, there is no way to know when the thread will |
144 | really stop. To work around it, we'll only write the context | |
145 | back to the thread when either the user or GDB explicitly change | |
146 | it between stopping and resuming. */ | |
147 | if (memcmp (&th->context, &th->base_context, sizeof (CONTEXT)) != 0) | |
148 | #endif | |
a2abc7de | 149 | SetThreadContext (th->h, &th->context); |
9c6c8194 PA |
150 | } |
151 | ||
a2abc7de PA |
152 | /* Set the thread context of the thread associated with TH. */ |
153 | ||
154 | static void | |
e56f8ccb | 155 | win32_prepare_to_resume (windows_thread_info *th) |
b80864fb | 156 | { |
a2abc7de PA |
157 | if (the_low_target.prepare_to_resume != NULL) |
158 | (*the_low_target.prepare_to_resume) (th); | |
159 | } | |
b80864fb | 160 | |
a2abc7de | 161 | /* See win32-low.h. */ |
b80864fb | 162 | |
a2abc7de | 163 | void |
e56f8ccb | 164 | win32_require_context (windows_thread_info *th) |
a2abc7de PA |
165 | { |
166 | if (th->context.ContextFlags == 0) | |
b80864fb | 167 | { |
98a03287 | 168 | th->suspend (); |
9c6c8194 | 169 | win32_get_thread_context (th); |
b80864fb | 170 | } |
a2abc7de PA |
171 | } |
172 | ||
28688adf TT |
173 | /* See nat/windows-nat.h. */ |
174 | ||
175 | windows_thread_info * | |
176 | windows_nat::thread_rec (ptid_t ptid, thread_disposition_type disposition) | |
a2abc7de | 177 | { |
8dc7b443 | 178 | thread_info *thread = find_thread_ptid (ptid); |
a2abc7de PA |
179 | if (thread == NULL) |
180 | return NULL; | |
181 | ||
e56f8ccb | 182 | windows_thread_info *th = (windows_thread_info *) thread_target_data (thread); |
28688adf | 183 | if (disposition != DONT_INVALIDATE_CONTEXT) |
a2abc7de | 184 | win32_require_context (th); |
b80864fb DJ |
185 | return th; |
186 | } | |
187 | ||
188 | /* Add a thread to the thread list. */ | |
e56f8ccb | 189 | static windows_thread_info * |
711e434b | 190 | child_add_thread (DWORD pid, DWORD tid, HANDLE h, void *tlb) |
b80864fb | 191 | { |
e56f8ccb | 192 | windows_thread_info *th; |
fd79271b | 193 | ptid_t ptid = ptid_t (pid, tid, 0); |
b80864fb | 194 | |
28688adf | 195 | if ((th = thread_rec (ptid, DONT_INVALIDATE_CONTEXT))) |
b80864fb DJ |
196 | return th; |
197 | ||
e9534bd2 | 198 | th = new windows_thread_info (tid, h, (CORE_ADDR) (uintptr_t) tlb); |
b80864fb | 199 | |
95954743 | 200 | add_thread (ptid, th); |
b80864fb | 201 | |
34b34921 PA |
202 | if (the_low_target.thread_added != NULL) |
203 | (*the_low_target.thread_added) (th); | |
b80864fb DJ |
204 | |
205 | return th; | |
206 | } | |
207 | ||
208 | /* Delete a thread from the list of threads. */ | |
209 | static void | |
9c80ecd6 | 210 | delete_thread_info (thread_info *thread) |
b80864fb | 211 | { |
e56f8ccb | 212 | windows_thread_info *th = (windows_thread_info *) thread_target_data (thread); |
b80864fb | 213 | |
c3de4d92 | 214 | remove_thread (thread); |
e9534bd2 | 215 | delete th; |
b80864fb DJ |
216 | } |
217 | ||
218 | /* Delete a thread from the list of threads. */ | |
219 | static void | |
95954743 | 220 | child_delete_thread (DWORD pid, DWORD tid) |
b80864fb | 221 | { |
b80864fb | 222 | /* If the last thread is exiting, just return. */ |
9c80ecd6 | 223 | if (all_threads.size () == 1) |
b80864fb DJ |
224 | return; |
225 | ||
8dc7b443 | 226 | thread_info *thread = find_thread_ptid (ptid_t (pid, tid)); |
b80864fb DJ |
227 | if (thread == NULL) |
228 | return; | |
229 | ||
230 | delete_thread_info (thread); | |
231 | } | |
232 | ||
aa5ca48f DE |
233 | /* These watchpoint related wrapper functions simply pass on the function call |
234 | if the low target has registered a corresponding function. */ | |
235 | ||
a2b2297a TBA |
236 | bool |
237 | win32_process_target::supports_z_point_type (char z_type) | |
802e8e6d | 238 | { |
523d4f80 TT |
239 | return (z_type == Z_PACKET_SW_BP |
240 | || (the_low_target.supports_z_point_type != NULL | |
241 | && the_low_target.supports_z_point_type (z_type))); | |
802e8e6d PA |
242 | } |
243 | ||
7e0bde70 TBA |
244 | int |
245 | win32_process_target::insert_point (enum raw_bkpt_type type, CORE_ADDR addr, | |
246 | int size, raw_breakpoint *bp) | |
aa5ca48f | 247 | { |
523d4f80 TT |
248 | if (type == raw_bkpt_type_sw) |
249 | return insert_memory_breakpoint (bp); | |
250 | else if (the_low_target.insert_point != NULL) | |
802e8e6d | 251 | return the_low_target.insert_point (type, addr, size, bp); |
aa5ca48f DE |
252 | else |
253 | /* Unsupported (see target.h). */ | |
254 | return 1; | |
255 | } | |
256 | ||
7e0bde70 TBA |
257 | int |
258 | win32_process_target::remove_point (enum raw_bkpt_type type, CORE_ADDR addr, | |
259 | int size, raw_breakpoint *bp) | |
aa5ca48f | 260 | { |
523d4f80 TT |
261 | if (type == raw_bkpt_type_sw) |
262 | return remove_memory_breakpoint (bp); | |
263 | else if (the_low_target.remove_point != NULL) | |
802e8e6d | 264 | return the_low_target.remove_point (type, addr, size, bp); |
aa5ca48f DE |
265 | else |
266 | /* Unsupported (see target.h). */ | |
267 | return 1; | |
268 | } | |
269 | ||
6eeb5c55 TBA |
270 | bool |
271 | win32_process_target::stopped_by_watchpoint () | |
aa5ca48f DE |
272 | { |
273 | if (the_low_target.stopped_by_watchpoint != NULL) | |
274 | return the_low_target.stopped_by_watchpoint (); | |
275 | else | |
6eeb5c55 | 276 | return false; |
aa5ca48f DE |
277 | } |
278 | ||
6eeb5c55 TBA |
279 | CORE_ADDR |
280 | win32_process_target::stopped_data_address () | |
aa5ca48f DE |
281 | { |
282 | if (the_low_target.stopped_data_address != NULL) | |
283 | return the_low_target.stopped_data_address (); | |
284 | else | |
285 | return 0; | |
286 | } | |
287 | ||
288 | ||
b80864fb DJ |
289 | /* Transfer memory from/to the debugged process. */ |
290 | static int | |
291 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
5b6d1e4f | 292 | int write, process_stratum_target *target) |
b80864fb | 293 | { |
cee83bcb PM |
294 | BOOL success; |
295 | SIZE_T done = 0; | |
296 | DWORD lasterror = 0; | |
e8f0053d | 297 | uintptr_t addr = (uintptr_t) memaddr; |
b80864fb DJ |
298 | |
299 | if (write) | |
300 | { | |
cee83bcb PM |
301 | success = WriteProcessMemory (current_process_handle, (LPVOID) addr, |
302 | (LPCVOID) our, len, &done); | |
303 | if (!success) | |
304 | lasterror = GetLastError (); | |
b80864fb DJ |
305 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); |
306 | } | |
307 | else | |
308 | { | |
cee83bcb PM |
309 | success = ReadProcessMemory (current_process_handle, (LPCVOID) addr, |
310 | (LPVOID) our, len, &done); | |
311 | if (!success) | |
312 | lasterror = GetLastError (); | |
b80864fb | 313 | } |
cee83bcb PM |
314 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
315 | return done; | |
316 | else | |
317 | return success ? done : -1; | |
b80864fb DJ |
318 | } |
319 | ||
ed50f18f | 320 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
321 | state. */ |
322 | static void | |
323 | child_init_thread_list (void) | |
324 | { | |
f0045347 | 325 | for_each_thread (delete_thread_info); |
b80864fb DJ |
326 | } |
327 | ||
f25b3fc3 JB |
328 | /* Zero during the child initialization phase, and nonzero otherwise. */ |
329 | ||
330 | static int child_initialization_done = 0; | |
331 | ||
b80864fb | 332 | static void |
95954743 | 333 | do_initial_child_stuff (HANDLE proch, DWORD pid, int attached) |
b80864fb | 334 | { |
3aee8918 PA |
335 | struct process_info *proc; |
336 | ||
a493e3e2 | 337 | last_sig = GDB_SIGNAL_0; |
b80864fb | 338 | |
5ac588cf PA |
339 | current_process_handle = proch; |
340 | current_process_id = pid; | |
341 | main_thread_id = 0; | |
342 | ||
343 | soft_interrupt_requested = 0; | |
344 | faked_breakpoint = 0; | |
345 | ||
b80864fb DJ |
346 | memset (¤t_event, 0, sizeof (current_event)); |
347 | ||
3aee8918 PA |
348 | proc = add_process (pid, attached); |
349 | proc->tdesc = win32_tdesc; | |
b80864fb | 350 | child_init_thread_list (); |
f25b3fc3 | 351 | child_initialization_done = 0; |
ed50f18f PA |
352 | |
353 | if (the_low_target.initial_stuff != NULL) | |
354 | (*the_low_target.initial_stuff) (); | |
4210d83e PA |
355 | |
356 | cached_status.kind = TARGET_WAITKIND_IGNORE; | |
357 | ||
358 | /* Flush all currently pending debug events (thread and dll list) up | |
359 | to the initial breakpoint. */ | |
360 | while (1) | |
361 | { | |
362 | struct target_waitstatus status; | |
363 | ||
52405d85 | 364 | the_target->wait (minus_one_ptid, &status, 0); |
4210d83e PA |
365 | |
366 | /* Note win32_wait doesn't return thread events. */ | |
367 | if (status.kind != TARGET_WAITKIND_LOADED) | |
368 | { | |
369 | cached_status = status; | |
370 | break; | |
371 | } | |
372 | ||
373 | { | |
374 | struct thread_resume resume; | |
375 | ||
376 | resume.thread = minus_one_ptid; | |
377 | resume.kind = resume_continue; | |
378 | resume.sig = 0; | |
379 | ||
52405d85 | 380 | the_target->resume (&resume, 1); |
4210d83e PA |
381 | } |
382 | } | |
379a5e2d JB |
383 | |
384 | #ifndef _WIN32_WCE | |
f25b3fc3 JB |
385 | /* Now that the inferior has been started and all DLLs have been mapped, |
386 | we can iterate over all DLLs and load them in. | |
387 | ||
388 | We avoid doing it any earlier because, on certain versions of Windows, | |
389 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
390 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
391 | include the DLL name, preventing us from creating an associated SO. | |
392 | A possible explanation is that ntdll.dll might be mapped before | |
393 | the SO info gets created by the Windows system -- ntdll.dll is | |
394 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
395 | do not seem to suffer from that problem. | |
396 | ||
397 | Rather than try to work around this sort of issue, it is much | |
398 | simpler to just ignore DLL load/unload events during the startup | |
399 | phase, and then process them all in one batch now. */ | |
400 | win32_add_all_dlls (); | |
379a5e2d | 401 | #endif |
f25b3fc3 JB |
402 | |
403 | child_initialization_done = 1; | |
b80864fb DJ |
404 | } |
405 | ||
406 | /* Resume all artificially suspended threads if we are continuing | |
407 | execution. */ | |
2bee2b6c SM |
408 | static void |
409 | continue_one_thread (thread_info *thread, int thread_id) | |
b80864fb | 410 | { |
e56f8ccb | 411 | windows_thread_info *th = (windows_thread_info *) thread_target_data (thread); |
b80864fb | 412 | |
a2abc7de | 413 | if (thread_id == -1 || thread_id == th->tid) |
b80864fb | 414 | { |
a2abc7de | 415 | win32_prepare_to_resume (th); |
34b34921 | 416 | |
a2abc7de | 417 | if (th->suspended) |
c436e841 | 418 | { |
a2abc7de PA |
419 | if (th->context.ContextFlags) |
420 | { | |
421 | win32_set_thread_context (th); | |
422 | th->context.ContextFlags = 0; | |
423 | } | |
424 | ||
98a03287 | 425 | th->resume (); |
c436e841 | 426 | } |
b80864fb | 427 | } |
b80864fb DJ |
428 | } |
429 | ||
430 | static BOOL | |
431 | child_continue (DWORD continue_status, int thread_id) | |
432 | { | |
360ad8b3 TT |
433 | desired_stop_thread_id = thread_id; |
434 | if (matching_pending_stop (debug_threads)) | |
435 | return TRUE; | |
436 | ||
4d5d1aaa PA |
437 | /* The inferior will only continue after the ContinueDebugEvent |
438 | call. */ | |
2bee2b6c SM |
439 | for_each_thread ([&] (thread_info *thread) |
440 | { | |
441 | continue_one_thread (thread, thread_id); | |
442 | }); | |
4d5d1aaa | 443 | faked_breakpoint = 0; |
b80864fb | 444 | |
e758e19c | 445 | return continue_last_debug_event (continue_status, debug_threads); |
b80864fb DJ |
446 | } |
447 | ||
b80864fb DJ |
448 | /* Fetch register(s) from the current thread context. */ |
449 | static void | |
442ea881 | 450 | child_fetch_inferior_registers (struct regcache *regcache, int r) |
b80864fb DJ |
451 | { |
452 | int regno; | |
28688adf TT |
453 | windows_thread_info *th = thread_rec (current_thread_ptid (), |
454 | INVALIDATE_CONTEXT); | |
4463ce24 | 455 | if (r == -1 || r > NUM_REGS) |
442ea881 | 456 | child_fetch_inferior_registers (regcache, NUM_REGS); |
b80864fb DJ |
457 | else |
458 | for (regno = 0; regno < r; regno++) | |
442ea881 | 459 | (*the_low_target.fetch_inferior_register) (regcache, th, regno); |
b80864fb DJ |
460 | } |
461 | ||
462 | /* Store a new register value into the current thread context. We don't | |
463 | change the program's context until later, when we resume it. */ | |
464 | static void | |
442ea881 | 465 | child_store_inferior_registers (struct regcache *regcache, int r) |
b80864fb DJ |
466 | { |
467 | int regno; | |
28688adf TT |
468 | windows_thread_info *th = thread_rec (current_thread_ptid (), |
469 | INVALIDATE_CONTEXT); | |
b80864fb | 470 | if (r == -1 || r == 0 || r > NUM_REGS) |
442ea881 | 471 | child_store_inferior_registers (regcache, NUM_REGS); |
b80864fb DJ |
472 | else |
473 | for (regno = 0; regno < r; regno++) | |
442ea881 | 474 | (*the_low_target.store_inferior_register) (regcache, th, regno); |
b80864fb DJ |
475 | } |
476 | ||
ed50f18f PA |
477 | /* Map the Windows error number in ERROR to a locale-dependent error |
478 | message string and return a pointer to it. Typically, the values | |
479 | for ERROR come from GetLastError. | |
480 | ||
481 | The string pointed to shall not be modified by the application, | |
482 | but may be overwritten by a subsequent call to strwinerror | |
483 | ||
484 | The strwinerror function does not change the current setting | |
485 | of GetLastError. */ | |
486 | ||
487 | char * | |
488 | strwinerror (DWORD error) | |
489 | { | |
490 | static char buf[1024]; | |
491 | TCHAR *msgbuf; | |
492 | DWORD lasterr = GetLastError (); | |
493 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
494 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
495 | NULL, | |
496 | error, | |
497 | 0, /* Default language */ | |
c3de4d92 | 498 | (LPTSTR) &msgbuf, |
ed50f18f PA |
499 | 0, |
500 | NULL); | |
501 | if (chars != 0) | |
502 | { | |
503 | /* If there is an \r\n appended, zap it. */ | |
504 | if (chars >= 2 | |
505 | && msgbuf[chars - 2] == '\r' | |
506 | && msgbuf[chars - 1] == '\n') | |
507 | { | |
508 | chars -= 2; | |
509 | msgbuf[chars] = 0; | |
510 | } | |
511 | ||
512 | if (chars > ((COUNTOF (buf)) - 1)) | |
513 | { | |
514 | chars = COUNTOF (buf) - 1; | |
515 | msgbuf [chars] = 0; | |
516 | } | |
517 | ||
518 | #ifdef UNICODE | |
519 | wcstombs (buf, msgbuf, chars + 1); | |
520 | #else | |
521 | strncpy (buf, msgbuf, chars + 1); | |
522 | #endif | |
523 | LocalFree (msgbuf); | |
524 | } | |
525 | else | |
dfe07582 | 526 | sprintf (buf, "unknown win32 error (%u)", (unsigned) error); |
ed50f18f PA |
527 | |
528 | SetLastError (lasterr); | |
529 | return buf; | |
530 | } | |
531 | ||
aec18585 PA |
532 | static BOOL |
533 | create_process (const char *program, char *args, | |
534 | DWORD flags, PROCESS_INFORMATION *pi) | |
535 | { | |
bc3b087d | 536 | const char *inferior_cwd = get_inferior_cwd (); |
aec18585 | 537 | BOOL ret; |
a9b34532 EZ |
538 | size_t argslen, proglen; |
539 | ||
540 | proglen = strlen (program) + 1; | |
541 | argslen = strlen (args) + proglen; | |
aec18585 PA |
542 | |
543 | #ifdef _WIN32_WCE | |
bc3b087d | 544 | wchar_t *p, *wprogram, *wargs, *wcwd = NULL; |
aec18585 | 545 | |
a9b34532 EZ |
546 | wprogram = (wchar_t *) alloca (proglen * sizeof (wchar_t)); |
547 | mbstowcs (wprogram, program, proglen); | |
aec18585 PA |
548 | |
549 | for (p = wprogram; *p; ++p) | |
550 | if (L'/' == *p) | |
551 | *p = L'\\'; | |
552 | ||
aec18585 | 553 | wargs = alloca ((argslen + 1) * sizeof (wchar_t)); |
a9b34532 EZ |
554 | wcscpy (wargs, wprogram); |
555 | wcscat (wargs, L" "); | |
556 | mbstowcs (wargs + proglen, args, argslen + 1 - proglen); | |
aec18585 | 557 | |
bc3b087d SDJ |
558 | if (inferior_cwd != NULL) |
559 | { | |
906994d9 | 560 | std::string expanded_infcwd = gdb_tilde_expand (inferior_cwd); |
bc3b087d SDJ |
561 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), |
562 | '/', '\\'); | |
563 | wcwd = alloca ((expanded_infcwd.size () + 1) * sizeof (wchar_t)); | |
564 | if (mbstowcs (wcwd, expanded_infcwd.c_str (), | |
565 | expanded_infcwd.size () + 1) == NULL) | |
566 | { | |
567 | error (_("\ | |
568 | Could not convert the expanded inferior cwd to wide-char.")); | |
569 | } | |
570 | } | |
571 | ||
aec18585 | 572 | ret = CreateProcessW (wprogram, /* image name */ |
1b3f6016 PA |
573 | wargs, /* command line */ |
574 | NULL, /* security, not supported */ | |
575 | NULL, /* thread, not supported */ | |
576 | FALSE, /* inherit handles, not supported */ | |
577 | flags, /* start flags */ | |
578 | NULL, /* environment, not supported */ | |
bc3b087d | 579 | wcwd, /* current directory */ |
1b3f6016 PA |
580 | NULL, /* start info, not supported */ |
581 | pi); /* proc info */ | |
aec18585 PA |
582 | #else |
583 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; | |
a9b34532 EZ |
584 | char *program_and_args = (char *) alloca (argslen + 1); |
585 | ||
586 | strcpy (program_and_args, program); | |
587 | strcat (program_and_args, " "); | |
588 | strcat (program_and_args, args); | |
589 | ret = CreateProcessA (program, /* image name */ | |
590 | program_and_args, /* command line */ | |
591 | NULL, /* security */ | |
592 | NULL, /* thread */ | |
593 | TRUE, /* inherit handles */ | |
594 | flags, /* start flags */ | |
595 | NULL, /* environment */ | |
906994d9 JB |
596 | /* current directory */ |
597 | (inferior_cwd == NULL | |
598 | ? NULL | |
599 | : gdb_tilde_expand (inferior_cwd).c_str()), | |
a9b34532 EZ |
600 | &si, /* start info */ |
601 | pi); /* proc info */ | |
aec18585 PA |
602 | #endif |
603 | ||
604 | return ret; | |
605 | } | |
606 | ||
b80864fb | 607 | /* Start a new process. |
2090129c SDJ |
608 | PROGRAM is the program name. |
609 | PROGRAM_ARGS is the vector containing the inferior's args. | |
b80864fb DJ |
610 | Returns the new PID on success, -1 on failure. Registers the new |
611 | process with the process list. */ | |
15295543 TBA |
612 | int |
613 | win32_process_target::create_inferior (const char *program, | |
614 | const std::vector<char *> &program_args) | |
b80864fb | 615 | { |
6341380d | 616 | client_state &cs = get_client_state (); |
b80864fb | 617 | #ifndef USE_WIN32API |
d8d2a3ee | 618 | char real_path[PATH_MAX]; |
b80864fb DJ |
619 | char *orig_path, *new_path, *path_ptr; |
620 | #endif | |
b80864fb DJ |
621 | BOOL ret; |
622 | DWORD flags; | |
ed50f18f | 623 | PROCESS_INFORMATION pi; |
aec18585 | 624 | DWORD err; |
2090129c SDJ |
625 | std::string str_program_args = stringify_argv (program_args); |
626 | char *args = (char *) str_program_args.c_str (); | |
b80864fb | 627 | |
d97903b2 PA |
628 | /* win32_wait needs to know we're not attaching. */ |
629 | attaching = 0; | |
630 | ||
b80864fb DJ |
631 | if (!program) |
632 | error ("No executable specified, specify executable to debug.\n"); | |
633 | ||
b80864fb DJ |
634 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
635 | ||
636 | #ifndef USE_WIN32API | |
637 | orig_path = NULL; | |
638 | path_ptr = getenv ("PATH"); | |
639 | if (path_ptr) | |
640 | { | |
81239425 | 641 | int size = cygwin_conv_path_list (CCP_POSIX_TO_WIN_A, path_ptr, NULL, 0); |
0ae534d2 JT |
642 | orig_path = (char *) alloca (strlen (path_ptr) + 1); |
643 | new_path = (char *) alloca (size); | |
b80864fb | 644 | strcpy (orig_path, path_ptr); |
81239425 | 645 | cygwin_conv_path_list (CCP_POSIX_TO_WIN_A, path_ptr, new_path, size); |
b80864fb | 646 | setenv ("PATH", new_path, 1); |
81239425 | 647 | } |
d8d2a3ee | 648 | cygwin_conv_path (CCP_POSIX_TO_WIN_A, program, real_path, PATH_MAX); |
b80864fb DJ |
649 | program = real_path; |
650 | #endif | |
651 | ||
a9b34532 | 652 | OUTMSG2 (("Command line is \"%s %s\"\n", program, args)); |
b80864fb | 653 | |
ed50f18f | 654 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 655 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 656 | #endif |
b80864fb | 657 | |
aec18585 PA |
658 | ret = create_process (program, args, flags, &pi); |
659 | err = GetLastError (); | |
660 | if (!ret && err == ERROR_FILE_NOT_FOUND) | |
661 | { | |
c3de4d92 | 662 | char *exename = (char *) alloca (strlen (program) + 5); |
aec18585 PA |
663 | strcat (strcpy (exename, program), ".exe"); |
664 | ret = create_process (exename, args, flags, &pi); | |
665 | err = GetLastError (); | |
666 | } | |
b80864fb DJ |
667 | |
668 | #ifndef USE_WIN32API | |
669 | if (orig_path) | |
670 | setenv ("PATH", orig_path, 1); | |
671 | #endif | |
672 | ||
673 | if (!ret) | |
674 | { | |
a9b34532 | 675 | error ("Error creating process \"%s %s\", (error %d): %s\n", |
ed50f18f | 676 | program, args, (int) err, strwinerror (err)); |
b80864fb DJ |
677 | } |
678 | else | |
679 | { | |
a9b34532 | 680 | OUTMSG2 (("Process created: %s %s\n", program, (char *) args)); |
b80864fb DJ |
681 | } |
682 | ||
ed50f18f PA |
683 | #ifndef _WIN32_WCE |
684 | /* On Windows CE this handle can't be closed. The OS reuses | |
685 | it in the debug events, while the 9x/NT versions of Windows | |
686 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 687 | CloseHandle (pi.hThread); |
ed50f18f | 688 | #endif |
b80864fb | 689 | |
95954743 | 690 | do_initial_child_stuff (pi.hProcess, pi.dwProcessId, 0); |
b80864fb | 691 | |
7dbac825 JB |
692 | /* Wait till we are at 1st instruction in program, return new pid |
693 | (assuming success). */ | |
6532e7e3 | 694 | cs.last_ptid = wait (ptid_t (current_process_id), &cs.last_status, 0); |
7dbac825 | 695 | |
052793ad HD |
696 | /* Necessary for handle_v_kill. */ |
697 | signal_pid = current_process_id; | |
698 | ||
b80864fb DJ |
699 | return current_process_id; |
700 | } | |
701 | ||
702 | /* Attach to a running process. | |
703 | PID is the process ID to attach to, specified by the user | |
704 | or a higher layer. */ | |
ef03dad8 TBA |
705 | int |
706 | win32_process_target::attach (unsigned long pid) | |
b80864fb | 707 | { |
5ca906e6 | 708 | HANDLE h; |
bf914831 | 709 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; |
5ca906e6 | 710 | DWORD err; |
ed50f18f PA |
711 | #ifdef _WIN32_WCE |
712 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
713 | #else | |
714 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
715 | #endif | |
bf914831 | 716 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); |
b80864fb | 717 | |
5ca906e6 PA |
718 | h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
719 | if (h != NULL) | |
1d5315fe | 720 | { |
5ca906e6 PA |
721 | if (DebugActiveProcess (pid)) |
722 | { | |
723 | if (DebugSetProcessKillOnExit != NULL) | |
724 | DebugSetProcessKillOnExit (FALSE); | |
725 | ||
d97903b2 | 726 | /* win32_wait needs to know we're attaching. */ |
1b3f6016 | 727 | attaching = 1; |
95954743 | 728 | do_initial_child_stuff (h, pid, 1); |
5ca906e6 PA |
729 | return 0; |
730 | } | |
731 | ||
732 | CloseHandle (h); | |
b80864fb DJ |
733 | } |
734 | ||
5ca906e6 PA |
735 | err = GetLastError (); |
736 | error ("Attach to process failed (error %d): %s\n", | |
737 | (int) err, strwinerror (err)); | |
b80864fb DJ |
738 | } |
739 | ||
d41b524f TT |
740 | /* See nat/windows-nat.h. */ |
741 | ||
742 | int | |
743 | windows_nat::handle_output_debug_string (struct target_waitstatus *ourstatus) | |
bce7165d PA |
744 | { |
745 | #define READ_BUFFER_LEN 1024 | |
746 | CORE_ADDR addr; | |
747 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
748 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
749 | ||
750 | if (nbytes == 0) | |
d41b524f | 751 | return 0; |
bce7165d PA |
752 | |
753 | if (nbytes > READ_BUFFER_LEN) | |
754 | nbytes = READ_BUFFER_LEN; | |
755 | ||
756 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
757 | ||
758 | if (current_event.u.DebugString.fUnicode) | |
759 | { | |
760 | /* The event tells us how many bytes, not chars, even | |
1b3f6016 | 761 | in Unicode. */ |
bce7165d PA |
762 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; |
763 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
d41b524f | 764 | return 0; |
bce7165d PA |
765 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); |
766 | } | |
767 | else | |
768 | { | |
769 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
d41b524f | 770 | return 0; |
bce7165d PA |
771 | } |
772 | ||
61012eef | 773 | if (!startswith (s, "cYg")) |
45e2715e PA |
774 | { |
775 | if (!server_waiting) | |
776 | { | |
777 | OUTMSG2(("%s", s)); | |
d41b524f | 778 | return 0; |
45e2715e PA |
779 | } |
780 | ||
781 | monitor_output (s); | |
782 | } | |
bce7165d | 783 | #undef READ_BUFFER_LEN |
d41b524f TT |
784 | |
785 | return 0; | |
bce7165d PA |
786 | } |
787 | ||
5ac588cf PA |
788 | static void |
789 | win32_clear_inferiors (void) | |
790 | { | |
791 | if (current_process_handle != NULL) | |
792 | CloseHandle (current_process_handle); | |
793 | ||
f0045347 | 794 | for_each_thread (delete_thread_info); |
7928d571 | 795 | siginfo_er.ExceptionCode = 0; |
5ac588cf PA |
796 | clear_inferiors (); |
797 | } | |
798 | ||
a780ef4f PA |
799 | /* Implementation of target_ops::kill. */ |
800 | ||
c6885a57 TBA |
801 | int |
802 | win32_process_target::kill (process_info *process) | |
b80864fb DJ |
803 | { |
804 | TerminateProcess (current_process_handle, 0); | |
805 | for (;;) | |
806 | { | |
807 | if (!child_continue (DBG_CONTINUE, -1)) | |
808 | break; | |
2c1d95e8 | 809 | if (!wait_for_debug_event (¤t_event, INFINITE)) |
b80864fb DJ |
810 | break; |
811 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
812 | break; | |
bce7165d | 813 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
d41b524f | 814 | handle_output_debug_string (nullptr); |
b80864fb | 815 | } |
ed50f18f | 816 | |
5ac588cf | 817 | win32_clear_inferiors (); |
95954743 | 818 | |
95954743 PA |
819 | remove_process (process); |
820 | return 0; | |
b80864fb DJ |
821 | } |
822 | ||
ef2ddb33 PA |
823 | /* Implementation of target_ops::detach. */ |
824 | ||
9061c9cf TBA |
825 | int |
826 | win32_process_target::detach (process_info *process) | |
b80864fb | 827 | { |
bf914831 PA |
828 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
829 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
830 | #ifdef _WIN32_WCE |
831 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
832 | #else | |
833 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
834 | #endif | |
bf914831 PA |
835 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
836 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 837 | |
444d6139 PA |
838 | if (DebugSetProcessKillOnExit == NULL |
839 | || DebugActiveProcessStop == NULL) | |
840 | return -1; | |
b80864fb | 841 | |
444d6139 PA |
842 | { |
843 | struct thread_resume resume; | |
95954743 | 844 | resume.thread = minus_one_ptid; |
bd99dc85 | 845 | resume.kind = resume_continue; |
444d6139 | 846 | resume.sig = 0; |
0e4d7e35 | 847 | this->resume (&resume, 1); |
444d6139 PA |
848 | } |
849 | ||
850 | if (!DebugActiveProcessStop (current_process_id)) | |
5ac588cf PA |
851 | return -1; |
852 | ||
444d6139 | 853 | DebugSetProcessKillOnExit (FALSE); |
95954743 | 854 | remove_process (process); |
444d6139 | 855 | |
5ac588cf | 856 | win32_clear_inferiors (); |
444d6139 PA |
857 | return 0; |
858 | } | |
859 | ||
8adb37b9 TBA |
860 | void |
861 | win32_process_target::mourn (struct process_info *process) | |
505106cd PA |
862 | { |
863 | remove_process (process); | |
864 | } | |
865 | ||
ef2ddb33 PA |
866 | /* Implementation of target_ops::join. */ |
867 | ||
95a49a39 TBA |
868 | void |
869 | win32_process_target::join (int pid) | |
444d6139 | 870 | { |
d105de22 | 871 | HANDLE h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
5ac588cf PA |
872 | if (h != NULL) |
873 | { | |
874 | WaitForSingleObject (h, INFINITE); | |
875 | CloseHandle (h); | |
876 | } | |
b80864fb DJ |
877 | } |
878 | ||
13d3d99b TBA |
879 | /* Return true iff the thread with thread ID TID is alive. */ |
880 | bool | |
881 | win32_process_target::thread_alive (ptid_t ptid) | |
b80864fb | 882 | { |
b80864fb DJ |
883 | /* Our thread list is reliable; don't bother to poll target |
884 | threads. */ | |
8dc7b443 | 885 | return find_thread_ptid (ptid) != NULL; |
b80864fb DJ |
886 | } |
887 | ||
888 | /* Resume the inferior process. RESUME_INFO describes how we want | |
889 | to resume. */ | |
0e4d7e35 TBA |
890 | void |
891 | win32_process_target::resume (thread_resume *resume_info, size_t n) | |
b80864fb DJ |
892 | { |
893 | DWORD tid; | |
2ea28649 | 894 | enum gdb_signal sig; |
b80864fb | 895 | int step; |
e56f8ccb | 896 | windows_thread_info *th; |
b80864fb | 897 | DWORD continue_status = DBG_CONTINUE; |
95954743 | 898 | ptid_t ptid; |
b80864fb DJ |
899 | |
900 | /* This handles the very limited set of resume packets that GDB can | |
901 | currently produce. */ | |
902 | ||
d7e15655 | 903 | if (n == 1 && resume_info[0].thread == minus_one_ptid) |
b80864fb | 904 | tid = -1; |
2bd7c093 | 905 | else if (n > 1) |
b80864fb DJ |
906 | tid = -1; |
907 | else | |
908 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
909 | the Windows resume code do the right thing for thread switching. */ | |
910 | tid = current_event.dwThreadId; | |
911 | ||
d7e15655 | 912 | if (resume_info[0].thread != minus_one_ptid) |
b80864fb | 913 | { |
ce7715e2 | 914 | sig = gdb_signal_from_host (resume_info[0].sig); |
bd99dc85 | 915 | step = resume_info[0].kind == resume_step; |
b80864fb DJ |
916 | } |
917 | else | |
918 | { | |
ce7715e2 | 919 | sig = GDB_SIGNAL_0; |
b80864fb DJ |
920 | step = 0; |
921 | } | |
922 | ||
a493e3e2 | 923 | if (sig != GDB_SIGNAL_0) |
b80864fb DJ |
924 | { |
925 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
926 | { | |
ce7715e2 PA |
927 | OUTMSG (("Cannot continue with signal %s here.\n", |
928 | gdb_signal_to_string (sig))); | |
b80864fb DJ |
929 | } |
930 | else if (sig == last_sig) | |
931 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
932 | else | |
ce7715e2 PA |
933 | OUTMSG (("Can only continue with received signal %s.\n", |
934 | gdb_signal_to_string (last_sig))); | |
b80864fb DJ |
935 | } |
936 | ||
a493e3e2 | 937 | last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
938 | |
939 | /* Get context for the currently selected thread. */ | |
95954743 | 940 | ptid = debug_event_ptid (¤t_event); |
28688adf | 941 | th = thread_rec (ptid, DONT_INVALIDATE_CONTEXT); |
b80864fb DJ |
942 | if (th) |
943 | { | |
a2abc7de PA |
944 | win32_prepare_to_resume (th); |
945 | ||
b80864fb DJ |
946 | if (th->context.ContextFlags) |
947 | { | |
b80864fb DJ |
948 | /* Move register values from the inferior into the thread |
949 | context structure. */ | |
950 | regcache_invalidate (); | |
951 | ||
952 | if (step) | |
ed50f18f PA |
953 | { |
954 | if (the_low_target.single_step != NULL) | |
955 | (*the_low_target.single_step) (th); | |
956 | else | |
957 | error ("Single stepping is not supported " | |
958 | "in this configuration.\n"); | |
959 | } | |
34b34921 | 960 | |
9c6c8194 | 961 | win32_set_thread_context (th); |
b80864fb DJ |
962 | th->context.ContextFlags = 0; |
963 | } | |
964 | } | |
965 | ||
966 | /* Allow continuing with the same signal that interrupted us. | |
967 | Otherwise complain. */ | |
968 | ||
969 | child_continue (continue_status, tid); | |
970 | } | |
971 | ||
255e7678 DJ |
972 | static void |
973 | win32_add_one_solib (const char *name, CORE_ADDR load_addr) | |
974 | { | |
975 | char buf[MAX_PATH + 1]; | |
976 | char buf2[MAX_PATH + 1]; | |
977 | ||
978 | #ifdef _WIN32_WCE | |
979 | WIN32_FIND_DATA w32_fd; | |
980 | WCHAR wname[MAX_PATH + 1]; | |
981 | mbstowcs (wname, name, MAX_PATH); | |
982 | HANDLE h = FindFirstFile (wname, &w32_fd); | |
983 | #else | |
984 | WIN32_FIND_DATAA w32_fd; | |
985 | HANDLE h = FindFirstFileA (name, &w32_fd); | |
986 | #endif | |
987 | ||
850a0f76 JB |
988 | /* The symbols in a dll are offset by 0x1000, which is the |
989 | offset from 0 of the first byte in an image - because | |
990 | of the file header and the section alignment. */ | |
991 | load_addr += 0x1000; | |
992 | ||
255e7678 DJ |
993 | if (h == INVALID_HANDLE_VALUE) |
994 | strcpy (buf, name); | |
995 | else | |
996 | { | |
997 | FindClose (h); | |
998 | strcpy (buf, name); | |
999 | #ifndef _WIN32_WCE | |
1000 | { | |
1001 | char cwd[MAX_PATH + 1]; | |
1002 | char *p; | |
1003 | if (GetCurrentDirectoryA (MAX_PATH + 1, cwd)) | |
1004 | { | |
1005 | p = strrchr (buf, '\\'); | |
1006 | if (p) | |
1007 | p[1] = '\0'; | |
1008 | SetCurrentDirectoryA (buf); | |
1009 | GetFullPathNameA (w32_fd.cFileName, MAX_PATH, buf, &p); | |
1010 | SetCurrentDirectoryA (cwd); | |
1011 | } | |
1012 | } | |
1013 | #endif | |
1014 | } | |
1015 | ||
cf6e3471 PA |
1016 | #ifndef _WIN32_WCE |
1017 | if (strcasecmp (buf, "ntdll.dll") == 0) | |
1018 | { | |
1019 | GetSystemDirectoryA (buf, sizeof (buf)); | |
1020 | strcat (buf, "\\ntdll.dll"); | |
1021 | } | |
1022 | #endif | |
1023 | ||
255e7678 | 1024 | #ifdef __CYGWIN__ |
81239425 | 1025 | cygwin_conv_path (CCP_WIN_A_TO_POSIX, buf, buf2, sizeof (buf2)); |
255e7678 DJ |
1026 | #else |
1027 | strcpy (buf2, buf); | |
1028 | #endif | |
1029 | ||
1030 | loaded_dll (buf2, load_addr); | |
1031 | } | |
1032 | ||
255e7678 DJ |
1033 | typedef BOOL (WINAPI *winapi_EnumProcessModules) (HANDLE, HMODULE *, |
1034 | DWORD, LPDWORD); | |
1035 | typedef BOOL (WINAPI *winapi_GetModuleInformation) (HANDLE, HMODULE, | |
1036 | LPMODULEINFO, DWORD); | |
1037 | typedef DWORD (WINAPI *winapi_GetModuleFileNameExA) (HANDLE, HMODULE, | |
1038 | LPSTR, DWORD); | |
1039 | ||
1040 | static winapi_EnumProcessModules win32_EnumProcessModules; | |
1041 | static winapi_GetModuleInformation win32_GetModuleInformation; | |
1042 | static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA; | |
1043 | ||
1044 | static BOOL | |
1045 | load_psapi (void) | |
1046 | { | |
1047 | static int psapi_loaded = 0; | |
1048 | static HMODULE dll = NULL; | |
1049 | ||
1050 | if (!psapi_loaded) | |
1051 | { | |
1052 | psapi_loaded = 1; | |
1053 | dll = LoadLibrary (TEXT("psapi.dll")); | |
1054 | if (!dll) | |
1055 | return FALSE; | |
1056 | win32_EnumProcessModules = | |
1057 | GETPROCADDRESS (dll, EnumProcessModules); | |
1058 | win32_GetModuleInformation = | |
1059 | GETPROCADDRESS (dll, GetModuleInformation); | |
1060 | win32_GetModuleFileNameExA = | |
1061 | GETPROCADDRESS (dll, GetModuleFileNameExA); | |
1062 | } | |
1063 | ||
1064 | return (win32_EnumProcessModules != NULL | |
1065 | && win32_GetModuleInformation != NULL | |
1066 | && win32_GetModuleFileNameExA != NULL); | |
1067 | } | |
1068 | ||
379a5e2d | 1069 | #ifndef _WIN32_WCE |
649ebbca | 1070 | |
f25b3fc3 JB |
1071 | /* Iterate over all DLLs currently mapped by our inferior, and |
1072 | add them to our list of solibs. */ | |
379a5e2d JB |
1073 | |
1074 | static void | |
f25b3fc3 | 1075 | win32_add_all_dlls (void) |
379a5e2d | 1076 | { |
379a5e2d JB |
1077 | size_t i; |
1078 | HMODULE dh_buf[1]; | |
1079 | HMODULE *DllHandle = dh_buf; | |
1080 | DWORD cbNeeded; | |
1081 | BOOL ok; | |
1082 | ||
379a5e2d JB |
1083 | if (!load_psapi ()) |
1084 | return; | |
1085 | ||
1086 | cbNeeded = 0; | |
1087 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1088 | DllHandle, | |
1089 | sizeof (HMODULE), | |
1090 | &cbNeeded); | |
1091 | ||
1092 | if (!ok || !cbNeeded) | |
1093 | return; | |
1094 | ||
1095 | DllHandle = (HMODULE *) alloca (cbNeeded); | |
1096 | if (!DllHandle) | |
1097 | return; | |
1098 | ||
1099 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1100 | DllHandle, | |
1101 | cbNeeded, | |
1102 | &cbNeeded); | |
1103 | if (!ok) | |
1104 | return; | |
1105 | ||
f25b3fc3 | 1106 | for (i = 1; i < ((size_t) cbNeeded / sizeof (HMODULE)); i++) |
379a5e2d JB |
1107 | { |
1108 | MODULEINFO mi; | |
1109 | char dll_name[MAX_PATH]; | |
1110 | ||
1111 | if (!(*win32_GetModuleInformation) (current_process_handle, | |
1112 | DllHandle[i], | |
1113 | &mi, | |
1114 | sizeof (mi))) | |
1115 | continue; | |
1116 | if ((*win32_GetModuleFileNameExA) (current_process_handle, | |
1117 | DllHandle[i], | |
1118 | dll_name, | |
1119 | MAX_PATH) == 0) | |
1120 | continue; | |
850a0f76 | 1121 | win32_add_one_solib (dll_name, (CORE_ADDR) (uintptr_t) mi.lpBaseOfDll); |
379a5e2d JB |
1122 | } |
1123 | } | |
1124 | #endif | |
1125 | ||
255e7678 DJ |
1126 | typedef HANDLE (WINAPI *winapi_CreateToolhelp32Snapshot) (DWORD, DWORD); |
1127 | typedef BOOL (WINAPI *winapi_Module32First) (HANDLE, LPMODULEENTRY32); | |
1128 | typedef BOOL (WINAPI *winapi_Module32Next) (HANDLE, LPMODULEENTRY32); | |
1129 | ||
a816ba18 | 1130 | /* See nat/windows-nat.h. */ |
255e7678 | 1131 | |
a816ba18 TT |
1132 | void |
1133 | windows_nat::handle_load_dll () | |
255e7678 DJ |
1134 | { |
1135 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
9d8679cc | 1136 | const char *dll_name; |
255e7678 | 1137 | |
d763de10 JB |
1138 | dll_name = get_image_name (current_process_handle, |
1139 | event->lpImageName, event->fUnicode); | |
255e7678 DJ |
1140 | if (!dll_name) |
1141 | return; | |
1142 | ||
850a0f76 | 1143 | win32_add_one_solib (dll_name, (CORE_ADDR) (uintptr_t) event->lpBaseOfDll); |
255e7678 DJ |
1144 | } |
1145 | ||
a816ba18 | 1146 | /* See nat/windows-nat.h. */ |
f25b3fc3 | 1147 | |
a816ba18 TT |
1148 | void |
1149 | windows_nat::handle_unload_dll () | |
255e7678 DJ |
1150 | { |
1151 | CORE_ADDR load_addr = | |
e8f0053d | 1152 | (CORE_ADDR) (uintptr_t) current_event.u.UnloadDll.lpBaseOfDll; |
850a0f76 JB |
1153 | |
1154 | /* The symbols in a dll are offset by 0x1000, which is the | |
1155 | offset from 0 of the first byte in an image - because | |
1156 | of the file header and the section alignment. */ | |
255e7678 DJ |
1157 | load_addr += 0x1000; |
1158 | unloaded_dll (NULL, load_addr); | |
1159 | } | |
1160 | ||
34b34921 | 1161 | static void |
9c80ecd6 | 1162 | suspend_one_thread (thread_info *thread) |
4d5d1aaa | 1163 | { |
e56f8ccb | 1164 | windows_thread_info *th = (windows_thread_info *) thread_target_data (thread); |
4d5d1aaa | 1165 | |
98a03287 | 1166 | th->suspend (); |
4d5d1aaa PA |
1167 | } |
1168 | ||
1169 | static void | |
1170 | fake_breakpoint_event (void) | |
b80864fb | 1171 | { |
4d5d1aaa | 1172 | OUTMSG2(("fake_breakpoint_event\n")); |
b80864fb | 1173 | |
4d5d1aaa PA |
1174 | faked_breakpoint = 1; |
1175 | ||
1176 | memset (¤t_event, 0, sizeof (current_event)); | |
1177 | current_event.dwThreadId = main_thread_id; | |
1178 | current_event.dwDebugEventCode = EXCEPTION_DEBUG_EVENT; | |
1179 | current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1180 | = EXCEPTION_BREAKPOINT; | |
1181 | ||
f0045347 | 1182 | for_each_thread (suspend_one_thread); |
4d5d1aaa PA |
1183 | } |
1184 | ||
b65d95c5 DJ |
1185 | #ifdef _WIN32_WCE |
1186 | static int | |
1187 | auto_delete_breakpoint (CORE_ADDR stop_pc) | |
1188 | { | |
1189 | return 1; | |
1190 | } | |
1191 | #endif | |
1192 | ||
8d30e395 TT |
1193 | /* See nat/windows-nat.h. */ |
1194 | ||
1195 | bool | |
1196 | windows_nat::handle_ms_vc_exception (const EXCEPTION_RECORD *rec) | |
1197 | { | |
1198 | return false; | |
1199 | } | |
1200 | ||
a010605f TT |
1201 | /* See nat/windows-nat.h. */ |
1202 | ||
1203 | bool | |
1204 | windows_nat::handle_access_violation (const EXCEPTION_RECORD *rec) | |
1205 | { | |
1206 | return false; | |
1207 | } | |
1208 | ||
523d4f80 TT |
1209 | /* A helper function that will, if needed, set |
1210 | 'stopped_at_software_breakpoint' on the thread and adjust the | |
1211 | PC. */ | |
1212 | ||
1213 | static void | |
1214 | maybe_adjust_pc () | |
1215 | { | |
1216 | struct regcache *regcache = get_thread_regcache (current_thread, 1); | |
1217 | child_fetch_inferior_registers (regcache, -1); | |
1218 | ||
1219 | windows_thread_info *th = thread_rec (current_thread_ptid (), | |
1220 | DONT_INVALIDATE_CONTEXT); | |
1221 | th->stopped_at_software_breakpoint = false; | |
1222 | ||
1223 | if (current_event.dwDebugEventCode == EXCEPTION_DEBUG_EVENT | |
1224 | && (current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1225 | == EXCEPTION_BREAKPOINT) | |
1226 | && child_initialization_done) | |
1227 | { | |
1228 | th->stopped_at_software_breakpoint = true; | |
1229 | CORE_ADDR pc = regcache_read_pc (regcache); | |
1230 | CORE_ADDR sw_breakpoint_pc = pc - the_low_target.decr_pc_after_break; | |
1231 | regcache_write_pc (regcache, sw_breakpoint_pc); | |
1232 | } | |
1233 | } | |
1234 | ||
4d5d1aaa PA |
1235 | /* Get the next event from the child. */ |
1236 | ||
1237 | static int | |
8d30e395 TT |
1238 | get_child_debug_event (DWORD *continue_status, |
1239 | struct target_waitstatus *ourstatus) | |
4d5d1aaa | 1240 | { |
95954743 PA |
1241 | ptid_t ptid; |
1242 | ||
a493e3e2 | 1243 | last_sig = GDB_SIGNAL_0; |
b80864fb | 1244 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
8d30e395 | 1245 | *continue_status = DBG_CONTINUE; |
b80864fb | 1246 | |
4d5d1aaa PA |
1247 | /* Check if GDB sent us an interrupt request. */ |
1248 | check_remote_input_interrupt_request (); | |
1249 | ||
1250 | if (soft_interrupt_requested) | |
1251 | { | |
1252 | soft_interrupt_requested = 0; | |
1253 | fake_breakpoint_event (); | |
1254 | goto gotevent; | |
1255 | } | |
1256 | ||
d97903b2 PA |
1257 | #ifndef _WIN32_WCE |
1258 | attaching = 0; | |
1259 | #else | |
1260 | if (attaching) | |
1261 | { | |
1262 | /* WinCE doesn't set an initial breakpoint automatically. To | |
1b3f6016 PA |
1263 | stop the inferior, we flush all currently pending debug |
1264 | events -- the thread list and the dll list are always | |
1265 | reported immediatelly without delay, then, we suspend all | |
1266 | threads and pretend we saw a trap at the current PC of the | |
1267 | main thread. | |
1268 | ||
1269 | Contrary to desktop Windows, Windows CE *does* report the dll | |
1270 | names on LOAD_DLL_DEBUG_EVENTs resulting from a | |
1271 | DebugActiveProcess call. This limits the way we can detect | |
1272 | if all the dlls have already been reported. If we get a real | |
1273 | debug event before leaving attaching, the worst that will | |
1274 | happen is the user will see a spurious breakpoint. */ | |
d97903b2 PA |
1275 | |
1276 | current_event.dwDebugEventCode = 0; | |
2c1d95e8 | 1277 | if (!wait_for_debug_event (¤t_event, 0)) |
1b3f6016 PA |
1278 | { |
1279 | OUTMSG2(("no attach events left\n")); | |
1280 | fake_breakpoint_event (); | |
1281 | attaching = 0; | |
1282 | } | |
d97903b2 | 1283 | else |
1b3f6016 | 1284 | OUTMSG2(("got attach event\n")); |
d97903b2 PA |
1285 | } |
1286 | else | |
1287 | #endif | |
1288 | { | |
360ad8b3 TT |
1289 | gdb::optional<pending_stop> stop = fetch_pending_stop (debug_threads); |
1290 | if (stop.has_value ()) | |
1291 | { | |
1292 | *ourstatus = stop->status; | |
1293 | current_event = stop->event; | |
1294 | ptid = debug_event_ptid (¤t_event); | |
1295 | current_thread = find_thread_ptid (ptid); | |
1296 | return 1; | |
1297 | } | |
1298 | ||
30baf67b | 1299 | /* Keep the wait time low enough for comfortable remote |
1b3f6016 PA |
1300 | interruption, but high enough so gdbserver doesn't become a |
1301 | bottleneck. */ | |
2c1d95e8 | 1302 | if (!wait_for_debug_event (¤t_event, 250)) |
912cf4ba PA |
1303 | { |
1304 | DWORD e = GetLastError(); | |
1305 | ||
1306 | if (e == ERROR_PIPE_NOT_CONNECTED) | |
1307 | { | |
1308 | /* This will happen if the loader fails to succesfully | |
1309 | load the application, e.g., if the main executable | |
1310 | tries to pull in a non-existing export from a | |
1311 | DLL. */ | |
1312 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1313 | ourstatus->value.integer = 1; | |
1314 | return 1; | |
1315 | } | |
1316 | ||
1317 | return 0; | |
1318 | } | |
d97903b2 | 1319 | } |
4d5d1aaa PA |
1320 | |
1321 | gotevent: | |
b80864fb | 1322 | |
34b34921 | 1323 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
1324 | { |
1325 | case CREATE_THREAD_DEBUG_EVENT: | |
1326 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
dfe07582 | 1327 | "for pid=%u tid=%x)\n", |
b80864fb DJ |
1328 | (unsigned) current_event.dwProcessId, |
1329 | (unsigned) current_event.dwThreadId)); | |
1330 | ||
1331 | /* Record the existence of this thread. */ | |
95954743 PA |
1332 | child_add_thread (current_event.dwProcessId, |
1333 | current_event.dwThreadId, | |
711e434b PM |
1334 | current_event.u.CreateThread.hThread, |
1335 | current_event.u.CreateThread.lpThreadLocalBase); | |
b80864fb DJ |
1336 | break; |
1337 | ||
1338 | case EXIT_THREAD_DEBUG_EVENT: | |
1339 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
dfe07582 | 1340 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1341 | (unsigned) current_event.dwProcessId, |
1342 | (unsigned) current_event.dwThreadId)); | |
95954743 PA |
1343 | child_delete_thread (current_event.dwProcessId, |
1344 | current_event.dwThreadId); | |
aeeb81d1 | 1345 | |
9c80ecd6 | 1346 | current_thread = get_first_thread (); |
aeeb81d1 | 1347 | return 1; |
b80864fb DJ |
1348 | |
1349 | case CREATE_PROCESS_DEBUG_EVENT: | |
1350 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
dfe07582 | 1351 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1352 | (unsigned) current_event.dwProcessId, |
1353 | (unsigned) current_event.dwThreadId)); | |
1354 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
1355 | ||
1356 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1357 | main_thread_id = current_event.dwThreadId; | |
1358 | ||
b80864fb | 1359 | /* Add the main thread. */ |
95954743 PA |
1360 | child_add_thread (current_event.dwProcessId, |
1361 | main_thread_id, | |
711e434b PM |
1362 | current_event.u.CreateProcessInfo.hThread, |
1363 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
b80864fb | 1364 | |
ed50f18f | 1365 | #ifdef _WIN32_WCE |
d97903b2 PA |
1366 | if (!attaching) |
1367 | { | |
1368 | /* Windows CE doesn't set the initial breakpoint | |
1369 | automatically like the desktop versions of Windows do. | |
1370 | We add it explicitly here. It will be removed as soon as | |
1371 | it is hit. */ | |
1372 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
1373 | .CreateProcessInfo.lpStartAddress, | |
b65d95c5 | 1374 | auto_delete_breakpoint); |
d97903b2 | 1375 | } |
ed50f18f | 1376 | #endif |
b80864fb DJ |
1377 | break; |
1378 | ||
1379 | case EXIT_PROCESS_DEBUG_EVENT: | |
1380 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
dfe07582 | 1381 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1382 | (unsigned) current_event.dwProcessId, |
1383 | (unsigned) current_event.dwThreadId)); | |
559e7e50 EZ |
1384 | { |
1385 | DWORD exit_status = current_event.u.ExitProcess.dwExitCode; | |
1386 | /* If the exit status looks like a fatal exception, but we | |
1387 | don't recognize the exception's code, make the original | |
1388 | exit status value available, to avoid losing information. */ | |
1389 | int exit_signal | |
1390 | = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1; | |
1391 | if (exit_signal == -1) | |
1392 | { | |
1393 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1394 | ourstatus->value.integer = exit_status; | |
1395 | } | |
1396 | else | |
1397 | { | |
1398 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1399 | ourstatus->value.sig = gdb_signal_from_host (exit_signal); | |
1400 | } | |
1401 | } | |
360ad8b3 | 1402 | child_continue (DBG_CONTINUE, desired_stop_thread_id); |
b80864fb | 1403 | CloseHandle (current_process_handle); |
9d606399 | 1404 | current_process_handle = NULL; |
b80864fb DJ |
1405 | break; |
1406 | ||
1407 | case LOAD_DLL_DEBUG_EVENT: | |
1408 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
dfe07582 | 1409 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1410 | (unsigned) current_event.dwProcessId, |
1411 | (unsigned) current_event.dwThreadId)); | |
1412 | CloseHandle (current_event.u.LoadDll.hFile); | |
f25b3fc3 JB |
1413 | if (! child_initialization_done) |
1414 | break; | |
255e7678 | 1415 | handle_load_dll (); |
b80864fb DJ |
1416 | |
1417 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
a493e3e2 | 1418 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1419 | break; |
1420 | ||
1421 | case UNLOAD_DLL_DEBUG_EVENT: | |
1422 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
dfe07582 | 1423 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1424 | (unsigned) current_event.dwProcessId, |
1425 | (unsigned) current_event.dwThreadId)); | |
f25b3fc3 JB |
1426 | if (! child_initialization_done) |
1427 | break; | |
255e7678 DJ |
1428 | handle_unload_dll (); |
1429 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
a493e3e2 | 1430 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1431 | break; |
1432 | ||
1433 | case EXCEPTION_DEBUG_EVENT: | |
1434 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
dfe07582 | 1435 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1436 | (unsigned) current_event.dwProcessId, |
1437 | (unsigned) current_event.dwThreadId)); | |
8d30e395 TT |
1438 | if (handle_exception (ourstatus, debug_threads) |
1439 | == HANDLE_EXCEPTION_UNHANDLED) | |
1440 | *continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
b80864fb DJ |
1441 | break; |
1442 | ||
1443 | case OUTPUT_DEBUG_STRING_EVENT: | |
1444 | /* A message from the kernel (or Cygwin). */ | |
1445 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
dfe07582 | 1446 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1447 | (unsigned) current_event.dwProcessId, |
1448 | (unsigned) current_event.dwThreadId)); | |
d41b524f | 1449 | handle_output_debug_string (nullptr); |
b80864fb DJ |
1450 | break; |
1451 | ||
1452 | default: | |
1453 | OUTMSG2 (("gdbserver: kernel event unknown " | |
dfe07582 | 1454 | "for pid=%u tid=%x code=%x\n", |
b80864fb DJ |
1455 | (unsigned) current_event.dwProcessId, |
1456 | (unsigned) current_event.dwThreadId, | |
dfe07582 | 1457 | (unsigned) current_event.dwDebugEventCode)); |
b80864fb DJ |
1458 | break; |
1459 | } | |
1460 | ||
aeeb81d1 | 1461 | ptid = debug_event_ptid (¤t_event); |
360ad8b3 TT |
1462 | |
1463 | if (desired_stop_thread_id != -1 && desired_stop_thread_id != ptid.lwp ()) | |
1464 | { | |
1465 | /* Pending stop. See the comment by the definition of | |
1466 | "pending_stops" for details on why this is needed. */ | |
1467 | OUTMSG2 (("get_windows_debug_event - " | |
e2275c6e | 1468 | "unexpected stop in 0x%lx (expecting 0x%x)\n", |
360ad8b3 TT |
1469 | ptid.lwp (), desired_stop_thread_id)); |
1470 | maybe_adjust_pc (); | |
1471 | pending_stops.push_back ({(DWORD) ptid.lwp (), *ourstatus, current_event}); | |
1472 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1473 | } | |
1474 | else | |
1475 | current_thread = find_thread_ptid (ptid); | |
1476 | ||
4d5d1aaa | 1477 | return 1; |
b80864fb DJ |
1478 | } |
1479 | ||
1480 | /* Wait for the inferior process to change state. | |
1481 | STATUS will be filled in with a response code to send to GDB. | |
1482 | Returns the signal which caused the process to stop. */ | |
6532e7e3 TBA |
1483 | ptid_t |
1484 | win32_process_target::wait (ptid_t ptid, target_waitstatus *ourstatus, | |
1485 | int options) | |
b80864fb | 1486 | { |
4210d83e PA |
1487 | if (cached_status.kind != TARGET_WAITKIND_IGNORE) |
1488 | { | |
1489 | /* The core always does a wait after creating the inferior, and | |
1490 | do_initial_child_stuff already ran the inferior to the | |
1491 | initial breakpoint (or an exit, if creating the process | |
1492 | fails). Report it now. */ | |
1493 | *ourstatus = cached_status; | |
1494 | cached_status.kind = TARGET_WAITKIND_IGNORE; | |
1495 | return debug_event_ptid (¤t_event); | |
1496 | } | |
1497 | ||
b80864fb DJ |
1498 | while (1) |
1499 | { | |
8d30e395 TT |
1500 | DWORD continue_status; |
1501 | if (!get_child_debug_event (&continue_status, ourstatus)) | |
4d5d1aaa | 1502 | continue; |
b80864fb | 1503 | |
5b1c542e | 1504 | switch (ourstatus->kind) |
b80864fb | 1505 | { |
34b34921 | 1506 | case TARGET_WAITKIND_EXITED: |
b80864fb | 1507 | OUTMSG2 (("Child exited with retcode = %x\n", |
5b1c542e | 1508 | ourstatus->value.integer)); |
5ac588cf | 1509 | win32_clear_inferiors (); |
f2907e49 | 1510 | return ptid_t (current_event.dwProcessId); |
34b34921 | 1511 | case TARGET_WAITKIND_STOPPED: |
559e7e50 | 1512 | case TARGET_WAITKIND_SIGNALLED: |
1b3f6016 | 1513 | case TARGET_WAITKIND_LOADED: |
523d4f80 TT |
1514 | { |
1515 | OUTMSG2 (("Child Stopped with signal = %d \n", | |
1516 | ourstatus->value.sig)); | |
1517 | maybe_adjust_pc (); | |
1518 | return debug_event_ptid (¤t_event); | |
1519 | } | |
1b3f6016 | 1520 | default: |
5b1c542e | 1521 | OUTMSG (("Ignoring unknown internal event, %d\n", ourstatus->kind)); |
1b3f6016 PA |
1522 | /* fall-through */ |
1523 | case TARGET_WAITKIND_SPURIOUS: | |
34b34921 | 1524 | /* do nothing, just continue */ |
360ad8b3 | 1525 | child_continue (continue_status, desired_stop_thread_id); |
34b34921 | 1526 | break; |
b80864fb | 1527 | } |
b80864fb DJ |
1528 | } |
1529 | } | |
1530 | ||
1531 | /* Fetch registers from the inferior process. | |
1532 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
a5a4d4cd TBA |
1533 | void |
1534 | win32_process_target::fetch_registers (regcache *regcache, int regno) | |
b80864fb | 1535 | { |
442ea881 | 1536 | child_fetch_inferior_registers (regcache, regno); |
b80864fb DJ |
1537 | } |
1538 | ||
1539 | /* Store registers to the inferior process. | |
1540 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
a5a4d4cd TBA |
1541 | void |
1542 | win32_process_target::store_registers (regcache *regcache, int regno) | |
b80864fb | 1543 | { |
442ea881 | 1544 | child_store_inferior_registers (regcache, regno); |
b80864fb DJ |
1545 | } |
1546 | ||
1547 | /* Read memory from the inferior process. This should generally be | |
1548 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1549 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
e2558df3 TBA |
1550 | int |
1551 | win32_process_target::read_memory (CORE_ADDR memaddr, unsigned char *myaddr, | |
1552 | int len) | |
b80864fb | 1553 | { |
ed50f18f | 1554 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1555 | } |
1556 | ||
1557 | /* Write memory to the inferior process. This should generally be | |
1558 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1559 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1560 | Returns 0 on success and errno on failure. */ | |
e2558df3 TBA |
1561 | int |
1562 | win32_process_target::write_memory (CORE_ADDR memaddr, | |
1563 | const unsigned char *myaddr, int len) | |
b80864fb DJ |
1564 | { |
1565 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1566 | } | |
1567 | ||
7390519e | 1568 | /* Send an interrupt request to the inferior process. */ |
eb497a2a TBA |
1569 | void |
1570 | win32_process_target::request_interrupt () | |
7390519e PA |
1571 | { |
1572 | winapi_DebugBreakProcess DebugBreakProcess; | |
1573 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1574 | ||
1575 | #ifdef _WIN32_WCE | |
1576 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1577 | #else | |
1578 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1579 | #endif | |
1580 | ||
1581 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1582 | ||
1583 | if (GenerateConsoleCtrlEvent != NULL | |
1584 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1585 | return; | |
1586 | ||
1587 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1588 | not a process group id. | |
1589 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1590 | breakpoint exception in the interior process. */ | |
1591 | ||
1592 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1593 | ||
1594 | if (DebugBreakProcess != NULL | |
1595 | && DebugBreakProcess (current_process_handle)) | |
1596 | return; | |
1597 | ||
4d5d1aaa PA |
1598 | /* Last resort, suspend all threads manually. */ |
1599 | soft_interrupt_requested = 1; | |
7390519e PA |
1600 | } |
1601 | ||
22aa6223 TBA |
1602 | bool |
1603 | win32_process_target::supports_hardware_single_step () | |
1604 | { | |
1605 | return true; | |
1606 | } | |
1607 | ||
59a016f0 PA |
1608 | #ifdef _WIN32_WCE |
1609 | int | |
1610 | win32_error_to_fileio_error (DWORD err) | |
1611 | { | |
1612 | switch (err) | |
1613 | { | |
1614 | case ERROR_BAD_PATHNAME: | |
1615 | case ERROR_FILE_NOT_FOUND: | |
1616 | case ERROR_INVALID_NAME: | |
1617 | case ERROR_PATH_NOT_FOUND: | |
1618 | return FILEIO_ENOENT; | |
1619 | case ERROR_CRC: | |
1620 | case ERROR_IO_DEVICE: | |
1621 | case ERROR_OPEN_FAILED: | |
1622 | return FILEIO_EIO; | |
1623 | case ERROR_INVALID_HANDLE: | |
1624 | return FILEIO_EBADF; | |
1625 | case ERROR_ACCESS_DENIED: | |
1626 | case ERROR_SHARING_VIOLATION: | |
1627 | return FILEIO_EACCES; | |
1628 | case ERROR_NOACCESS: | |
1629 | return FILEIO_EFAULT; | |
1630 | case ERROR_BUSY: | |
1631 | return FILEIO_EBUSY; | |
1632 | case ERROR_ALREADY_EXISTS: | |
1633 | case ERROR_FILE_EXISTS: | |
1634 | return FILEIO_EEXIST; | |
1635 | case ERROR_BAD_DEVICE: | |
1636 | return FILEIO_ENODEV; | |
1637 | case ERROR_DIRECTORY: | |
1638 | return FILEIO_ENOTDIR; | |
1639 | case ERROR_FILENAME_EXCED_RANGE: | |
1640 | case ERROR_INVALID_DATA: | |
1641 | case ERROR_INVALID_PARAMETER: | |
1642 | case ERROR_NEGATIVE_SEEK: | |
1643 | return FILEIO_EINVAL; | |
1644 | case ERROR_TOO_MANY_OPEN_FILES: | |
1645 | return FILEIO_EMFILE; | |
1646 | case ERROR_HANDLE_DISK_FULL: | |
1647 | case ERROR_DISK_FULL: | |
1648 | return FILEIO_ENOSPC; | |
1649 | case ERROR_WRITE_PROTECT: | |
1650 | return FILEIO_EROFS; | |
1651 | case ERROR_NOT_SUPPORTED: | |
1652 | return FILEIO_ENOSYS; | |
1653 | } | |
1654 | ||
1655 | return FILEIO_EUNKNOWN; | |
1656 | } | |
1657 | ||
ea06bbaa TBA |
1658 | void |
1659 | win32_process_target::hostio_last_error (char *buf) | |
59a016f0 PA |
1660 | { |
1661 | DWORD winerr = GetLastError (); | |
1662 | int fileio_err = win32_error_to_fileio_error (winerr); | |
1663 | sprintf (buf, "F-1,%x", fileio_err); | |
1664 | } | |
1665 | #endif | |
1666 | ||
d7abedf7 TBA |
1667 | bool |
1668 | win32_process_target::supports_qxfer_siginfo () | |
1669 | { | |
1670 | return true; | |
1671 | } | |
1672 | ||
7928d571 HD |
1673 | /* Write Windows signal info. */ |
1674 | ||
d7abedf7 TBA |
1675 | int |
1676 | win32_process_target::qxfer_siginfo (const char *annex, | |
1677 | unsigned char *readbuf, | |
1678 | unsigned const char *writebuf, | |
1679 | CORE_ADDR offset, int len) | |
7928d571 HD |
1680 | { |
1681 | if (siginfo_er.ExceptionCode == 0) | |
1682 | return -1; | |
1683 | ||
1684 | if (readbuf == nullptr) | |
1685 | return -1; | |
1686 | ||
1687 | if (offset > sizeof (siginfo_er)) | |
1688 | return -1; | |
1689 | ||
1690 | if (offset + len > sizeof (siginfo_er)) | |
1691 | len = sizeof (siginfo_er) - offset; | |
1692 | ||
1693 | memcpy (readbuf, (char *) &siginfo_er + offset, len); | |
1694 | ||
1695 | return len; | |
1696 | } | |
1697 | ||
4e2e869c TBA |
1698 | bool |
1699 | win32_process_target::supports_get_tib_address () | |
1700 | { | |
1701 | return true; | |
1702 | } | |
1703 | ||
711e434b PM |
1704 | /* Write Windows OS Thread Information Block address. */ |
1705 | ||
4e2e869c TBA |
1706 | int |
1707 | win32_process_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) | |
711e434b | 1708 | { |
e56f8ccb | 1709 | windows_thread_info *th; |
28688adf | 1710 | th = thread_rec (ptid, DONT_INVALIDATE_CONTEXT); |
711e434b PM |
1711 | if (th == NULL) |
1712 | return 0; | |
1713 | if (addr != NULL) | |
1714 | *addr = th->thread_local_base; | |
1715 | return 1; | |
1716 | } | |
1717 | ||
fb78e89c AT |
1718 | /* Implementation of the target_ops method "sw_breakpoint_from_kind". */ |
1719 | ||
d367006f TBA |
1720 | const gdb_byte * |
1721 | win32_process_target::sw_breakpoint_from_kind (int kind, int *size) | |
fb78e89c AT |
1722 | { |
1723 | *size = the_low_target.breakpoint_len; | |
1724 | return the_low_target.breakpoint; | |
1725 | } | |
1726 | ||
523d4f80 TT |
1727 | bool |
1728 | win32_process_target::stopped_by_sw_breakpoint () | |
1729 | { | |
1730 | windows_thread_info *th = thread_rec (current_thread_ptid (), | |
1731 | DONT_INVALIDATE_CONTEXT); | |
1732 | return th == nullptr ? false : th->stopped_at_software_breakpoint; | |
1733 | } | |
1734 | ||
1735 | bool | |
1736 | win32_process_target::supports_stopped_by_sw_breakpoint () | |
1737 | { | |
1738 | return true; | |
1739 | } | |
1740 | ||
d6225aff TT |
1741 | CORE_ADDR |
1742 | win32_process_target::read_pc (struct regcache *regcache) | |
1743 | { | |
1744 | return (*the_low_target.get_pc) (regcache); | |
1745 | } | |
1746 | ||
1747 | void | |
1748 | win32_process_target::write_pc (struct regcache *regcache, CORE_ADDR pc) | |
1749 | { | |
1750 | return (*the_low_target.set_pc) (regcache, pc); | |
1751 | } | |
1752 | ||
5ef9273d TBA |
1753 | /* The win32 target ops object. */ |
1754 | ||
1755 | static win32_process_target the_win32_target; | |
1756 | ||
b80864fb DJ |
1757 | /* Initialize the Win32 backend. */ |
1758 | void | |
1759 | initialize_low (void) | |
1760 | { | |
52405d85 | 1761 | set_target_ops (&the_win32_target); |
d05b4ac3 | 1762 | the_low_target.arch_setup (); |
b80864fb | 1763 | } |