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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 DJ |
77 | static HANDLE current_process_handle = NULL; |
78 | static DWORD current_process_id = 0; | |
5ac588cf | 79 | static DWORD main_thread_id = 0; |
7928d571 | 80 | static EXCEPTION_RECORD siginfo_er; /* Contents of $_siginfo */ |
a493e3e2 | 81 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
82 | |
83 | /* The current debug event from WaitForDebugEvent. */ | |
84 | static DEBUG_EVENT current_event; | |
85 | ||
4210d83e PA |
86 | /* A status that hasn't been reported to the core yet, and so |
87 | win32_wait should return it next, instead of fetching the next | |
88 | debug event off the win32 API. */ | |
89 | static struct target_waitstatus cached_status; | |
90 | ||
4d5d1aaa PA |
91 | /* Non zero if an interrupt request is to be satisfied by suspending |
92 | all threads. */ | |
93 | static int soft_interrupt_requested = 0; | |
94 | ||
95 | /* Non zero if the inferior is stopped in a simulated breakpoint done | |
96 | by suspending all the threads. */ | |
97 | static int faked_breakpoint = 0; | |
98 | ||
3aee8918 PA |
99 | const struct target_desc *win32_tdesc; |
100 | ||
ed50f18f | 101 | #define NUM_REGS (the_low_target.num_regs) |
b80864fb | 102 | |
7a9a7487 MG |
103 | typedef BOOL (WINAPI *winapi_DebugActiveProcessStop) (DWORD dwProcessId); |
104 | typedef BOOL (WINAPI *winapi_DebugSetProcessKillOnExit) (BOOL KillOnExit); | |
105 | typedef BOOL (WINAPI *winapi_DebugBreakProcess) (HANDLE); | |
106 | typedef BOOL (WINAPI *winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD); | |
b80864fb | 107 | |
379a5e2d | 108 | #ifndef _WIN32_WCE |
f25b3fc3 | 109 | static void win32_add_all_dlls (void); |
379a5e2d | 110 | #endif |
34b34921 | 111 | |
b80864fb DJ |
112 | /* Get the thread ID from the current selected inferior (the current |
113 | thread). */ | |
95954743 | 114 | static ptid_t |
0bfdf32f | 115 | current_thread_ptid (void) |
b80864fb | 116 | { |
80894984 | 117 | return current_ptid; |
95954743 PA |
118 | } |
119 | ||
120 | /* The current debug event from WaitForDebugEvent. */ | |
121 | static ptid_t | |
122 | debug_event_ptid (DEBUG_EVENT *event) | |
123 | { | |
fd79271b | 124 | return ptid_t (event->dwProcessId, event->dwThreadId, 0); |
b80864fb DJ |
125 | } |
126 | ||
9c6c8194 PA |
127 | /* Get the thread context of the thread associated with TH. */ |
128 | ||
129 | static void | |
e56f8ccb | 130 | win32_get_thread_context (windows_thread_info *th) |
9c6c8194 PA |
131 | { |
132 | memset (&th->context, 0, sizeof (CONTEXT)); | |
a2abc7de | 133 | (*the_low_target.get_thread_context) (th); |
9c6c8194 PA |
134 | #ifdef _WIN32_WCE |
135 | memcpy (&th->base_context, &th->context, sizeof (CONTEXT)); | |
136 | #endif | |
137 | } | |
138 | ||
139 | /* Set the thread context of the thread associated with TH. */ | |
140 | ||
141 | static void | |
e56f8ccb | 142 | win32_set_thread_context (windows_thread_info *th) |
9c6c8194 PA |
143 | { |
144 | #ifdef _WIN32_WCE | |
145 | /* Calling SuspendThread on a thread that is running kernel code | |
146 | will report that the suspending was successful, but in fact, that | |
147 | will often not be true. In those cases, the context returned by | |
148 | GetThreadContext will not be correct by the time the thread | |
149 | stops, hence we can't set that context back into the thread when | |
30baf67b | 150 | resuming - it will most likely crash the inferior. |
9c6c8194 PA |
151 | Unfortunately, there is no way to know when the thread will |
152 | really stop. To work around it, we'll only write the context | |
153 | back to the thread when either the user or GDB explicitly change | |
154 | it between stopping and resuming. */ | |
155 | if (memcmp (&th->context, &th->base_context, sizeof (CONTEXT)) != 0) | |
156 | #endif | |
a2abc7de | 157 | SetThreadContext (th->h, &th->context); |
9c6c8194 PA |
158 | } |
159 | ||
a2abc7de PA |
160 | /* Set the thread context of the thread associated with TH. */ |
161 | ||
162 | static void | |
e56f8ccb | 163 | win32_prepare_to_resume (windows_thread_info *th) |
b80864fb | 164 | { |
a2abc7de PA |
165 | if (the_low_target.prepare_to_resume != NULL) |
166 | (*the_low_target.prepare_to_resume) (th); | |
167 | } | |
b80864fb | 168 | |
a2abc7de | 169 | /* See win32-low.h. */ |
b80864fb | 170 | |
a2abc7de | 171 | void |
e56f8ccb | 172 | win32_require_context (windows_thread_info *th) |
a2abc7de PA |
173 | { |
174 | if (th->context.ContextFlags == 0) | |
b80864fb | 175 | { |
98a03287 | 176 | th->suspend (); |
9c6c8194 | 177 | win32_get_thread_context (th); |
b80864fb | 178 | } |
a2abc7de PA |
179 | } |
180 | ||
181 | /* Find a thread record given a thread id. If GET_CONTEXT is set then | |
182 | also retrieve the context for this thread. */ | |
e56f8ccb | 183 | static windows_thread_info * |
a2abc7de PA |
184 | thread_rec (ptid_t ptid, int get_context) |
185 | { | |
8dc7b443 | 186 | thread_info *thread = find_thread_ptid (ptid); |
a2abc7de PA |
187 | if (thread == NULL) |
188 | return NULL; | |
189 | ||
e56f8ccb | 190 | windows_thread_info *th = (windows_thread_info *) thread_target_data (thread); |
a2abc7de PA |
191 | if (get_context) |
192 | win32_require_context (th); | |
b80864fb DJ |
193 | return th; |
194 | } | |
195 | ||
196 | /* Add a thread to the thread list. */ | |
e56f8ccb | 197 | static windows_thread_info * |
711e434b | 198 | child_add_thread (DWORD pid, DWORD tid, HANDLE h, void *tlb) |
b80864fb | 199 | { |
e56f8ccb | 200 | windows_thread_info *th; |
fd79271b | 201 | ptid_t ptid = ptid_t (pid, tid, 0); |
b80864fb | 202 | |
95954743 | 203 | if ((th = thread_rec (ptid, FALSE))) |
b80864fb DJ |
204 | return th; |
205 | ||
e9534bd2 | 206 | th = new windows_thread_info (tid, h, (CORE_ADDR) (uintptr_t) tlb); |
b80864fb | 207 | |
95954743 | 208 | add_thread (ptid, th); |
b80864fb | 209 | |
34b34921 PA |
210 | if (the_low_target.thread_added != NULL) |
211 | (*the_low_target.thread_added) (th); | |
b80864fb DJ |
212 | |
213 | return th; | |
214 | } | |
215 | ||
216 | /* Delete a thread from the list of threads. */ | |
217 | static void | |
9c80ecd6 | 218 | delete_thread_info (thread_info *thread) |
b80864fb | 219 | { |
e56f8ccb | 220 | windows_thread_info *th = (windows_thread_info *) thread_target_data (thread); |
b80864fb | 221 | |
c3de4d92 | 222 | remove_thread (thread); |
e9534bd2 | 223 | delete th; |
b80864fb DJ |
224 | } |
225 | ||
226 | /* Delete a thread from the list of threads. */ | |
227 | static void | |
95954743 | 228 | child_delete_thread (DWORD pid, DWORD tid) |
b80864fb | 229 | { |
b80864fb | 230 | /* If the last thread is exiting, just return. */ |
9c80ecd6 | 231 | if (all_threads.size () == 1) |
b80864fb DJ |
232 | return; |
233 | ||
8dc7b443 | 234 | thread_info *thread = find_thread_ptid (ptid_t (pid, tid)); |
b80864fb DJ |
235 | if (thread == NULL) |
236 | return; | |
237 | ||
238 | delete_thread_info (thread); | |
239 | } | |
240 | ||
aa5ca48f DE |
241 | /* These watchpoint related wrapper functions simply pass on the function call |
242 | if the low target has registered a corresponding function. */ | |
243 | ||
a2b2297a TBA |
244 | bool |
245 | win32_process_target::supports_z_point_type (char z_type) | |
802e8e6d PA |
246 | { |
247 | return (the_low_target.supports_z_point_type != NULL | |
248 | && the_low_target.supports_z_point_type (z_type)); | |
249 | } | |
250 | ||
7e0bde70 TBA |
251 | int |
252 | win32_process_target::insert_point (enum raw_bkpt_type type, CORE_ADDR addr, | |
253 | int size, raw_breakpoint *bp) | |
aa5ca48f DE |
254 | { |
255 | if (the_low_target.insert_point != NULL) | |
802e8e6d | 256 | return the_low_target.insert_point (type, addr, size, bp); |
aa5ca48f DE |
257 | else |
258 | /* Unsupported (see target.h). */ | |
259 | return 1; | |
260 | } | |
261 | ||
7e0bde70 TBA |
262 | int |
263 | win32_process_target::remove_point (enum raw_bkpt_type type, CORE_ADDR addr, | |
264 | int size, raw_breakpoint *bp) | |
aa5ca48f DE |
265 | { |
266 | if (the_low_target.remove_point != NULL) | |
802e8e6d | 267 | return the_low_target.remove_point (type, addr, size, bp); |
aa5ca48f DE |
268 | else |
269 | /* Unsupported (see target.h). */ | |
270 | return 1; | |
271 | } | |
272 | ||
6eeb5c55 TBA |
273 | bool |
274 | win32_process_target::stopped_by_watchpoint () | |
aa5ca48f DE |
275 | { |
276 | if (the_low_target.stopped_by_watchpoint != NULL) | |
277 | return the_low_target.stopped_by_watchpoint (); | |
278 | else | |
6eeb5c55 | 279 | return false; |
aa5ca48f DE |
280 | } |
281 | ||
6eeb5c55 TBA |
282 | CORE_ADDR |
283 | win32_process_target::stopped_data_address () | |
aa5ca48f DE |
284 | { |
285 | if (the_low_target.stopped_data_address != NULL) | |
286 | return the_low_target.stopped_data_address (); | |
287 | else | |
288 | return 0; | |
289 | } | |
290 | ||
291 | ||
b80864fb DJ |
292 | /* Transfer memory from/to the debugged process. */ |
293 | static int | |
294 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
5b6d1e4f | 295 | int write, process_stratum_target *target) |
b80864fb | 296 | { |
cee83bcb PM |
297 | BOOL success; |
298 | SIZE_T done = 0; | |
299 | DWORD lasterror = 0; | |
e8f0053d | 300 | uintptr_t addr = (uintptr_t) memaddr; |
b80864fb DJ |
301 | |
302 | if (write) | |
303 | { | |
cee83bcb PM |
304 | success = WriteProcessMemory (current_process_handle, (LPVOID) addr, |
305 | (LPCVOID) our, len, &done); | |
306 | if (!success) | |
307 | lasterror = GetLastError (); | |
b80864fb DJ |
308 | FlushInstructionCache (current_process_handle, (LPCVOID) addr, len); |
309 | } | |
310 | else | |
311 | { | |
cee83bcb PM |
312 | success = ReadProcessMemory (current_process_handle, (LPCVOID) addr, |
313 | (LPVOID) our, len, &done); | |
314 | if (!success) | |
315 | lasterror = GetLastError (); | |
b80864fb | 316 | } |
cee83bcb PM |
317 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
318 | return done; | |
319 | else | |
320 | return success ? done : -1; | |
b80864fb DJ |
321 | } |
322 | ||
ed50f18f | 323 | /* Clear out any old thread list and reinitialize it to a pristine |
b80864fb DJ |
324 | state. */ |
325 | static void | |
326 | child_init_thread_list (void) | |
327 | { | |
f0045347 | 328 | for_each_thread (delete_thread_info); |
b80864fb DJ |
329 | } |
330 | ||
f25b3fc3 JB |
331 | /* Zero during the child initialization phase, and nonzero otherwise. */ |
332 | ||
333 | static int child_initialization_done = 0; | |
334 | ||
b80864fb | 335 | static void |
95954743 | 336 | do_initial_child_stuff (HANDLE proch, DWORD pid, int attached) |
b80864fb | 337 | { |
3aee8918 PA |
338 | struct process_info *proc; |
339 | ||
a493e3e2 | 340 | last_sig = GDB_SIGNAL_0; |
b80864fb | 341 | |
5ac588cf PA |
342 | current_process_handle = proch; |
343 | current_process_id = pid; | |
344 | main_thread_id = 0; | |
345 | ||
346 | soft_interrupt_requested = 0; | |
347 | faked_breakpoint = 0; | |
348 | ||
b80864fb DJ |
349 | memset (¤t_event, 0, sizeof (current_event)); |
350 | ||
3aee8918 PA |
351 | proc = add_process (pid, attached); |
352 | proc->tdesc = win32_tdesc; | |
b80864fb | 353 | child_init_thread_list (); |
f25b3fc3 | 354 | child_initialization_done = 0; |
ed50f18f PA |
355 | |
356 | if (the_low_target.initial_stuff != NULL) | |
357 | (*the_low_target.initial_stuff) (); | |
4210d83e PA |
358 | |
359 | cached_status.kind = TARGET_WAITKIND_IGNORE; | |
360 | ||
361 | /* Flush all currently pending debug events (thread and dll list) up | |
362 | to the initial breakpoint. */ | |
363 | while (1) | |
364 | { | |
365 | struct target_waitstatus status; | |
366 | ||
52405d85 | 367 | the_target->wait (minus_one_ptid, &status, 0); |
4210d83e PA |
368 | |
369 | /* Note win32_wait doesn't return thread events. */ | |
370 | if (status.kind != TARGET_WAITKIND_LOADED) | |
371 | { | |
372 | cached_status = status; | |
373 | break; | |
374 | } | |
375 | ||
376 | { | |
377 | struct thread_resume resume; | |
378 | ||
379 | resume.thread = minus_one_ptid; | |
380 | resume.kind = resume_continue; | |
381 | resume.sig = 0; | |
382 | ||
52405d85 | 383 | the_target->resume (&resume, 1); |
4210d83e PA |
384 | } |
385 | } | |
379a5e2d JB |
386 | |
387 | #ifndef _WIN32_WCE | |
f25b3fc3 JB |
388 | /* Now that the inferior has been started and all DLLs have been mapped, |
389 | we can iterate over all DLLs and load them in. | |
390 | ||
391 | We avoid doing it any earlier because, on certain versions of Windows, | |
392 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
393 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
394 | include the DLL name, preventing us from creating an associated SO. | |
395 | A possible explanation is that ntdll.dll might be mapped before | |
396 | the SO info gets created by the Windows system -- ntdll.dll is | |
397 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
398 | do not seem to suffer from that problem. | |
399 | ||
400 | Rather than try to work around this sort of issue, it is much | |
401 | simpler to just ignore DLL load/unload events during the startup | |
402 | phase, and then process them all in one batch now. */ | |
403 | win32_add_all_dlls (); | |
379a5e2d | 404 | #endif |
f25b3fc3 JB |
405 | |
406 | child_initialization_done = 1; | |
b80864fb DJ |
407 | } |
408 | ||
409 | /* Resume all artificially suspended threads if we are continuing | |
410 | execution. */ | |
2bee2b6c SM |
411 | static void |
412 | continue_one_thread (thread_info *thread, int thread_id) | |
b80864fb | 413 | { |
e56f8ccb | 414 | windows_thread_info *th = (windows_thread_info *) thread_target_data (thread); |
b80864fb | 415 | |
a2abc7de | 416 | if (thread_id == -1 || thread_id == th->tid) |
b80864fb | 417 | { |
a2abc7de | 418 | win32_prepare_to_resume (th); |
34b34921 | 419 | |
a2abc7de | 420 | if (th->suspended) |
c436e841 | 421 | { |
a2abc7de PA |
422 | if (th->context.ContextFlags) |
423 | { | |
424 | win32_set_thread_context (th); | |
425 | th->context.ContextFlags = 0; | |
426 | } | |
427 | ||
98a03287 | 428 | th->resume (); |
c436e841 | 429 | } |
b80864fb | 430 | } |
b80864fb DJ |
431 | } |
432 | ||
433 | static BOOL | |
434 | child_continue (DWORD continue_status, int thread_id) | |
435 | { | |
4d5d1aaa PA |
436 | /* The inferior will only continue after the ContinueDebugEvent |
437 | call. */ | |
2bee2b6c SM |
438 | for_each_thread ([&] (thread_info *thread) |
439 | { | |
440 | continue_one_thread (thread, thread_id); | |
441 | }); | |
4d5d1aaa | 442 | faked_breakpoint = 0; |
b80864fb | 443 | |
4d5d1aaa PA |
444 | if (!ContinueDebugEvent (current_event.dwProcessId, |
445 | current_event.dwThreadId, | |
446 | continue_status)) | |
447 | return FALSE; | |
b80864fb | 448 | |
4d5d1aaa | 449 | return TRUE; |
b80864fb DJ |
450 | } |
451 | ||
b80864fb DJ |
452 | /* Fetch register(s) from the current thread context. */ |
453 | static void | |
442ea881 | 454 | child_fetch_inferior_registers (struct regcache *regcache, int r) |
b80864fb DJ |
455 | { |
456 | int regno; | |
e56f8ccb | 457 | windows_thread_info *th = thread_rec (current_thread_ptid (), TRUE); |
4463ce24 | 458 | if (r == -1 || r > NUM_REGS) |
442ea881 | 459 | child_fetch_inferior_registers (regcache, NUM_REGS); |
b80864fb DJ |
460 | else |
461 | for (regno = 0; regno < r; regno++) | |
442ea881 | 462 | (*the_low_target.fetch_inferior_register) (regcache, th, regno); |
b80864fb DJ |
463 | } |
464 | ||
465 | /* Store a new register value into the current thread context. We don't | |
466 | change the program's context until later, when we resume it. */ | |
467 | static void | |
442ea881 | 468 | child_store_inferior_registers (struct regcache *regcache, int r) |
b80864fb DJ |
469 | { |
470 | int regno; | |
e56f8ccb | 471 | windows_thread_info *th = thread_rec (current_thread_ptid (), TRUE); |
b80864fb | 472 | if (r == -1 || r == 0 || r > NUM_REGS) |
442ea881 | 473 | child_store_inferior_registers (regcache, NUM_REGS); |
b80864fb DJ |
474 | else |
475 | for (regno = 0; regno < r; regno++) | |
442ea881 | 476 | (*the_low_target.store_inferior_register) (regcache, th, regno); |
b80864fb DJ |
477 | } |
478 | ||
ed50f18f PA |
479 | /* Map the Windows error number in ERROR to a locale-dependent error |
480 | message string and return a pointer to it. Typically, the values | |
481 | for ERROR come from GetLastError. | |
482 | ||
483 | The string pointed to shall not be modified by the application, | |
484 | but may be overwritten by a subsequent call to strwinerror | |
485 | ||
486 | The strwinerror function does not change the current setting | |
487 | of GetLastError. */ | |
488 | ||
489 | char * | |
490 | strwinerror (DWORD error) | |
491 | { | |
492 | static char buf[1024]; | |
493 | TCHAR *msgbuf; | |
494 | DWORD lasterr = GetLastError (); | |
495 | DWORD chars = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
496 | | FORMAT_MESSAGE_ALLOCATE_BUFFER, | |
497 | NULL, | |
498 | error, | |
499 | 0, /* Default language */ | |
c3de4d92 | 500 | (LPTSTR) &msgbuf, |
ed50f18f PA |
501 | 0, |
502 | NULL); | |
503 | if (chars != 0) | |
504 | { | |
505 | /* If there is an \r\n appended, zap it. */ | |
506 | if (chars >= 2 | |
507 | && msgbuf[chars - 2] == '\r' | |
508 | && msgbuf[chars - 1] == '\n') | |
509 | { | |
510 | chars -= 2; | |
511 | msgbuf[chars] = 0; | |
512 | } | |
513 | ||
514 | if (chars > ((COUNTOF (buf)) - 1)) | |
515 | { | |
516 | chars = COUNTOF (buf) - 1; | |
517 | msgbuf [chars] = 0; | |
518 | } | |
519 | ||
520 | #ifdef UNICODE | |
521 | wcstombs (buf, msgbuf, chars + 1); | |
522 | #else | |
523 | strncpy (buf, msgbuf, chars + 1); | |
524 | #endif | |
525 | LocalFree (msgbuf); | |
526 | } | |
527 | else | |
dfe07582 | 528 | sprintf (buf, "unknown win32 error (%u)", (unsigned) error); |
ed50f18f PA |
529 | |
530 | SetLastError (lasterr); | |
531 | return buf; | |
532 | } | |
533 | ||
aec18585 PA |
534 | static BOOL |
535 | create_process (const char *program, char *args, | |
536 | DWORD flags, PROCESS_INFORMATION *pi) | |
537 | { | |
bc3b087d | 538 | const char *inferior_cwd = get_inferior_cwd (); |
aec18585 | 539 | BOOL ret; |
a9b34532 EZ |
540 | size_t argslen, proglen; |
541 | ||
542 | proglen = strlen (program) + 1; | |
543 | argslen = strlen (args) + proglen; | |
aec18585 PA |
544 | |
545 | #ifdef _WIN32_WCE | |
bc3b087d | 546 | wchar_t *p, *wprogram, *wargs, *wcwd = NULL; |
aec18585 | 547 | |
a9b34532 EZ |
548 | wprogram = (wchar_t *) alloca (proglen * sizeof (wchar_t)); |
549 | mbstowcs (wprogram, program, proglen); | |
aec18585 PA |
550 | |
551 | for (p = wprogram; *p; ++p) | |
552 | if (L'/' == *p) | |
553 | *p = L'\\'; | |
554 | ||
aec18585 | 555 | wargs = alloca ((argslen + 1) * sizeof (wchar_t)); |
a9b34532 EZ |
556 | wcscpy (wargs, wprogram); |
557 | wcscat (wargs, L" "); | |
558 | mbstowcs (wargs + proglen, args, argslen + 1 - proglen); | |
aec18585 | 559 | |
bc3b087d SDJ |
560 | if (inferior_cwd != NULL) |
561 | { | |
906994d9 | 562 | std::string expanded_infcwd = gdb_tilde_expand (inferior_cwd); |
bc3b087d SDJ |
563 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), |
564 | '/', '\\'); | |
565 | wcwd = alloca ((expanded_infcwd.size () + 1) * sizeof (wchar_t)); | |
566 | if (mbstowcs (wcwd, expanded_infcwd.c_str (), | |
567 | expanded_infcwd.size () + 1) == NULL) | |
568 | { | |
569 | error (_("\ | |
570 | Could not convert the expanded inferior cwd to wide-char.")); | |
571 | } | |
572 | } | |
573 | ||
aec18585 | 574 | ret = CreateProcessW (wprogram, /* image name */ |
1b3f6016 PA |
575 | wargs, /* command line */ |
576 | NULL, /* security, not supported */ | |
577 | NULL, /* thread, not supported */ | |
578 | FALSE, /* inherit handles, not supported */ | |
579 | flags, /* start flags */ | |
580 | NULL, /* environment, not supported */ | |
bc3b087d | 581 | wcwd, /* current directory */ |
1b3f6016 PA |
582 | NULL, /* start info, not supported */ |
583 | pi); /* proc info */ | |
aec18585 PA |
584 | #else |
585 | STARTUPINFOA si = { sizeof (STARTUPINFOA) }; | |
a9b34532 EZ |
586 | char *program_and_args = (char *) alloca (argslen + 1); |
587 | ||
588 | strcpy (program_and_args, program); | |
589 | strcat (program_and_args, " "); | |
590 | strcat (program_and_args, args); | |
591 | ret = CreateProcessA (program, /* image name */ | |
592 | program_and_args, /* command line */ | |
593 | NULL, /* security */ | |
594 | NULL, /* thread */ | |
595 | TRUE, /* inherit handles */ | |
596 | flags, /* start flags */ | |
597 | NULL, /* environment */ | |
906994d9 JB |
598 | /* current directory */ |
599 | (inferior_cwd == NULL | |
600 | ? NULL | |
601 | : gdb_tilde_expand (inferior_cwd).c_str()), | |
a9b34532 EZ |
602 | &si, /* start info */ |
603 | pi); /* proc info */ | |
aec18585 PA |
604 | #endif |
605 | ||
606 | return ret; | |
607 | } | |
608 | ||
b80864fb | 609 | /* Start a new process. |
2090129c SDJ |
610 | PROGRAM is the program name. |
611 | PROGRAM_ARGS is the vector containing the inferior's args. | |
b80864fb DJ |
612 | Returns the new PID on success, -1 on failure. Registers the new |
613 | process with the process list. */ | |
15295543 TBA |
614 | int |
615 | win32_process_target::create_inferior (const char *program, | |
616 | const std::vector<char *> &program_args) | |
b80864fb | 617 | { |
6341380d | 618 | client_state &cs = get_client_state (); |
b80864fb | 619 | #ifndef USE_WIN32API |
d8d2a3ee | 620 | char real_path[PATH_MAX]; |
b80864fb DJ |
621 | char *orig_path, *new_path, *path_ptr; |
622 | #endif | |
b80864fb DJ |
623 | BOOL ret; |
624 | DWORD flags; | |
ed50f18f | 625 | PROCESS_INFORMATION pi; |
aec18585 | 626 | DWORD err; |
2090129c SDJ |
627 | std::string str_program_args = stringify_argv (program_args); |
628 | char *args = (char *) str_program_args.c_str (); | |
b80864fb | 629 | |
d97903b2 PA |
630 | /* win32_wait needs to know we're not attaching. */ |
631 | attaching = 0; | |
632 | ||
b80864fb DJ |
633 | if (!program) |
634 | error ("No executable specified, specify executable to debug.\n"); | |
635 | ||
b80864fb DJ |
636 | flags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; |
637 | ||
638 | #ifndef USE_WIN32API | |
639 | orig_path = NULL; | |
640 | path_ptr = getenv ("PATH"); | |
641 | if (path_ptr) | |
642 | { | |
81239425 | 643 | int size = cygwin_conv_path_list (CCP_POSIX_TO_WIN_A, path_ptr, NULL, 0); |
0ae534d2 JT |
644 | orig_path = (char *) alloca (strlen (path_ptr) + 1); |
645 | new_path = (char *) alloca (size); | |
b80864fb | 646 | strcpy (orig_path, path_ptr); |
81239425 | 647 | cygwin_conv_path_list (CCP_POSIX_TO_WIN_A, path_ptr, new_path, size); |
b80864fb | 648 | setenv ("PATH", new_path, 1); |
81239425 | 649 | } |
d8d2a3ee | 650 | cygwin_conv_path (CCP_POSIX_TO_WIN_A, program, real_path, PATH_MAX); |
b80864fb DJ |
651 | program = real_path; |
652 | #endif | |
653 | ||
a9b34532 | 654 | OUTMSG2 (("Command line is \"%s %s\"\n", program, args)); |
b80864fb | 655 | |
ed50f18f | 656 | #ifdef CREATE_NEW_PROCESS_GROUP |
b80864fb | 657 | flags |= CREATE_NEW_PROCESS_GROUP; |
ed50f18f | 658 | #endif |
b80864fb | 659 | |
aec18585 PA |
660 | ret = create_process (program, args, flags, &pi); |
661 | err = GetLastError (); | |
662 | if (!ret && err == ERROR_FILE_NOT_FOUND) | |
663 | { | |
c3de4d92 | 664 | char *exename = (char *) alloca (strlen (program) + 5); |
aec18585 PA |
665 | strcat (strcpy (exename, program), ".exe"); |
666 | ret = create_process (exename, args, flags, &pi); | |
667 | err = GetLastError (); | |
668 | } | |
b80864fb DJ |
669 | |
670 | #ifndef USE_WIN32API | |
671 | if (orig_path) | |
672 | setenv ("PATH", orig_path, 1); | |
673 | #endif | |
674 | ||
675 | if (!ret) | |
676 | { | |
a9b34532 | 677 | error ("Error creating process \"%s %s\", (error %d): %s\n", |
ed50f18f | 678 | program, args, (int) err, strwinerror (err)); |
b80864fb DJ |
679 | } |
680 | else | |
681 | { | |
a9b34532 | 682 | OUTMSG2 (("Process created: %s %s\n", program, (char *) args)); |
b80864fb DJ |
683 | } |
684 | ||
ed50f18f PA |
685 | #ifndef _WIN32_WCE |
686 | /* On Windows CE this handle can't be closed. The OS reuses | |
687 | it in the debug events, while the 9x/NT versions of Windows | |
688 | probably use a DuplicateHandle'd one. */ | |
b80864fb | 689 | CloseHandle (pi.hThread); |
ed50f18f | 690 | #endif |
b80864fb | 691 | |
95954743 | 692 | do_initial_child_stuff (pi.hProcess, pi.dwProcessId, 0); |
b80864fb | 693 | |
7dbac825 JB |
694 | /* Wait till we are at 1st instruction in program, return new pid |
695 | (assuming success). */ | |
6532e7e3 | 696 | cs.last_ptid = wait (ptid_t (current_process_id), &cs.last_status, 0); |
7dbac825 | 697 | |
052793ad HD |
698 | /* Necessary for handle_v_kill. */ |
699 | signal_pid = current_process_id; | |
700 | ||
b80864fb DJ |
701 | return current_process_id; |
702 | } | |
703 | ||
704 | /* Attach to a running process. | |
705 | PID is the process ID to attach to, specified by the user | |
706 | or a higher layer. */ | |
ef03dad8 TBA |
707 | int |
708 | win32_process_target::attach (unsigned long pid) | |
b80864fb | 709 | { |
5ca906e6 | 710 | HANDLE h; |
bf914831 | 711 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; |
5ca906e6 | 712 | DWORD err; |
ed50f18f PA |
713 | #ifdef _WIN32_WCE |
714 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
715 | #else | |
716 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
717 | #endif | |
bf914831 | 718 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); |
b80864fb | 719 | |
5ca906e6 PA |
720 | h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
721 | if (h != NULL) | |
1d5315fe | 722 | { |
5ca906e6 PA |
723 | if (DebugActiveProcess (pid)) |
724 | { | |
725 | if (DebugSetProcessKillOnExit != NULL) | |
726 | DebugSetProcessKillOnExit (FALSE); | |
727 | ||
d97903b2 | 728 | /* win32_wait needs to know we're attaching. */ |
1b3f6016 | 729 | attaching = 1; |
95954743 | 730 | do_initial_child_stuff (h, pid, 1); |
5ca906e6 PA |
731 | return 0; |
732 | } | |
733 | ||
734 | CloseHandle (h); | |
b80864fb DJ |
735 | } |
736 | ||
5ca906e6 PA |
737 | err = GetLastError (); |
738 | error ("Attach to process failed (error %d): %s\n", | |
739 | (int) err, strwinerror (err)); | |
b80864fb DJ |
740 | } |
741 | ||
bce7165d PA |
742 | /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */ |
743 | static void | |
c0879059 | 744 | handle_output_debug_string (void) |
bce7165d PA |
745 | { |
746 | #define READ_BUFFER_LEN 1024 | |
747 | CORE_ADDR addr; | |
748 | char s[READ_BUFFER_LEN + 1] = { 0 }; | |
749 | DWORD nbytes = current_event.u.DebugString.nDebugStringLength; | |
750 | ||
751 | if (nbytes == 0) | |
752 | return; | |
753 | ||
754 | if (nbytes > READ_BUFFER_LEN) | |
755 | nbytes = READ_BUFFER_LEN; | |
756 | ||
757 | addr = (CORE_ADDR) (size_t) current_event.u.DebugString.lpDebugStringData; | |
758 | ||
759 | if (current_event.u.DebugString.fUnicode) | |
760 | { | |
761 | /* The event tells us how many bytes, not chars, even | |
1b3f6016 | 762 | in Unicode. */ |
bce7165d PA |
763 | WCHAR buffer[(READ_BUFFER_LEN + 1) / sizeof (WCHAR)] = { 0 }; |
764 | if (read_inferior_memory (addr, (unsigned char *) buffer, nbytes) != 0) | |
765 | return; | |
766 | wcstombs (s, buffer, (nbytes + 1) / sizeof (WCHAR)); | |
767 | } | |
768 | else | |
769 | { | |
770 | if (read_inferior_memory (addr, (unsigned char *) s, nbytes) != 0) | |
771 | return; | |
772 | } | |
773 | ||
61012eef | 774 | if (!startswith (s, "cYg")) |
45e2715e PA |
775 | { |
776 | if (!server_waiting) | |
777 | { | |
778 | OUTMSG2(("%s", s)); | |
779 | return; | |
780 | } | |
781 | ||
782 | monitor_output (s); | |
783 | } | |
bce7165d PA |
784 | #undef READ_BUFFER_LEN |
785 | } | |
786 | ||
5ac588cf PA |
787 | static void |
788 | win32_clear_inferiors (void) | |
789 | { | |
790 | if (current_process_handle != NULL) | |
791 | CloseHandle (current_process_handle); | |
792 | ||
f0045347 | 793 | for_each_thread (delete_thread_info); |
7928d571 | 794 | siginfo_er.ExceptionCode = 0; |
5ac588cf PA |
795 | clear_inferiors (); |
796 | } | |
797 | ||
a780ef4f PA |
798 | /* Implementation of target_ops::kill. */ |
799 | ||
c6885a57 TBA |
800 | int |
801 | win32_process_target::kill (process_info *process) | |
b80864fb DJ |
802 | { |
803 | TerminateProcess (current_process_handle, 0); | |
804 | for (;;) | |
805 | { | |
806 | if (!child_continue (DBG_CONTINUE, -1)) | |
807 | break; | |
808 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
809 | break; | |
810 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
811 | break; | |
bce7165d | 812 | else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
c0879059 | 813 | handle_output_debug_string (); |
b80864fb | 814 | } |
ed50f18f | 815 | |
5ac588cf | 816 | win32_clear_inferiors (); |
95954743 | 817 | |
95954743 PA |
818 | remove_process (process); |
819 | return 0; | |
b80864fb DJ |
820 | } |
821 | ||
ef2ddb33 PA |
822 | /* Implementation of target_ops::detach. */ |
823 | ||
9061c9cf TBA |
824 | int |
825 | win32_process_target::detach (process_info *process) | |
b80864fb | 826 | { |
bf914831 PA |
827 | winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL; |
828 | winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL; | |
ed50f18f PA |
829 | #ifdef _WIN32_WCE |
830 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
831 | #else | |
832 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
833 | #endif | |
bf914831 PA |
834 | DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop); |
835 | DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit); | |
b80864fb | 836 | |
444d6139 PA |
837 | if (DebugSetProcessKillOnExit == NULL |
838 | || DebugActiveProcessStop == NULL) | |
839 | return -1; | |
b80864fb | 840 | |
444d6139 PA |
841 | { |
842 | struct thread_resume resume; | |
95954743 | 843 | resume.thread = minus_one_ptid; |
bd99dc85 | 844 | resume.kind = resume_continue; |
444d6139 | 845 | resume.sig = 0; |
0e4d7e35 | 846 | this->resume (&resume, 1); |
444d6139 PA |
847 | } |
848 | ||
849 | if (!DebugActiveProcessStop (current_process_id)) | |
5ac588cf PA |
850 | return -1; |
851 | ||
444d6139 | 852 | DebugSetProcessKillOnExit (FALSE); |
95954743 | 853 | remove_process (process); |
444d6139 | 854 | |
5ac588cf | 855 | win32_clear_inferiors (); |
444d6139 PA |
856 | return 0; |
857 | } | |
858 | ||
8adb37b9 TBA |
859 | void |
860 | win32_process_target::mourn (struct process_info *process) | |
505106cd PA |
861 | { |
862 | remove_process (process); | |
863 | } | |
864 | ||
ef2ddb33 PA |
865 | /* Implementation of target_ops::join. */ |
866 | ||
95a49a39 TBA |
867 | void |
868 | win32_process_target::join (int pid) | |
444d6139 | 869 | { |
d105de22 | 870 | HANDLE h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); |
5ac588cf PA |
871 | if (h != NULL) |
872 | { | |
873 | WaitForSingleObject (h, INFINITE); | |
874 | CloseHandle (h); | |
875 | } | |
b80864fb DJ |
876 | } |
877 | ||
13d3d99b TBA |
878 | /* Return true iff the thread with thread ID TID is alive. */ |
879 | bool | |
880 | win32_process_target::thread_alive (ptid_t ptid) | |
b80864fb | 881 | { |
b80864fb DJ |
882 | /* Our thread list is reliable; don't bother to poll target |
883 | threads. */ | |
8dc7b443 | 884 | return find_thread_ptid (ptid) != NULL; |
b80864fb DJ |
885 | } |
886 | ||
887 | /* Resume the inferior process. RESUME_INFO describes how we want | |
888 | to resume. */ | |
0e4d7e35 TBA |
889 | void |
890 | win32_process_target::resume (thread_resume *resume_info, size_t n) | |
b80864fb DJ |
891 | { |
892 | DWORD tid; | |
2ea28649 | 893 | enum gdb_signal sig; |
b80864fb | 894 | int step; |
e56f8ccb | 895 | windows_thread_info *th; |
b80864fb | 896 | DWORD continue_status = DBG_CONTINUE; |
95954743 | 897 | ptid_t ptid; |
b80864fb DJ |
898 | |
899 | /* This handles the very limited set of resume packets that GDB can | |
900 | currently produce. */ | |
901 | ||
d7e15655 | 902 | if (n == 1 && resume_info[0].thread == minus_one_ptid) |
b80864fb | 903 | tid = -1; |
2bd7c093 | 904 | else if (n > 1) |
b80864fb DJ |
905 | tid = -1; |
906 | else | |
907 | /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make | |
908 | the Windows resume code do the right thing for thread switching. */ | |
909 | tid = current_event.dwThreadId; | |
910 | ||
d7e15655 | 911 | if (resume_info[0].thread != minus_one_ptid) |
b80864fb | 912 | { |
ce7715e2 | 913 | sig = gdb_signal_from_host (resume_info[0].sig); |
bd99dc85 | 914 | step = resume_info[0].kind == resume_step; |
b80864fb DJ |
915 | } |
916 | else | |
917 | { | |
ce7715e2 | 918 | sig = GDB_SIGNAL_0; |
b80864fb DJ |
919 | step = 0; |
920 | } | |
921 | ||
a493e3e2 | 922 | if (sig != GDB_SIGNAL_0) |
b80864fb DJ |
923 | { |
924 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
925 | { | |
ce7715e2 PA |
926 | OUTMSG (("Cannot continue with signal %s here.\n", |
927 | gdb_signal_to_string (sig))); | |
b80864fb DJ |
928 | } |
929 | else if (sig == last_sig) | |
930 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
931 | else | |
ce7715e2 PA |
932 | OUTMSG (("Can only continue with received signal %s.\n", |
933 | gdb_signal_to_string (last_sig))); | |
b80864fb DJ |
934 | } |
935 | ||
a493e3e2 | 936 | last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
937 | |
938 | /* Get context for the currently selected thread. */ | |
95954743 PA |
939 | ptid = debug_event_ptid (¤t_event); |
940 | th = thread_rec (ptid, FALSE); | |
b80864fb DJ |
941 | if (th) |
942 | { | |
a2abc7de PA |
943 | win32_prepare_to_resume (th); |
944 | ||
b80864fb DJ |
945 | if (th->context.ContextFlags) |
946 | { | |
b80864fb DJ |
947 | /* Move register values from the inferior into the thread |
948 | context structure. */ | |
949 | regcache_invalidate (); | |
950 | ||
951 | if (step) | |
ed50f18f PA |
952 | { |
953 | if (the_low_target.single_step != NULL) | |
954 | (*the_low_target.single_step) (th); | |
955 | else | |
956 | error ("Single stepping is not supported " | |
957 | "in this configuration.\n"); | |
958 | } | |
34b34921 | 959 | |
9c6c8194 | 960 | win32_set_thread_context (th); |
b80864fb DJ |
961 | th->context.ContextFlags = 0; |
962 | } | |
963 | } | |
964 | ||
965 | /* Allow continuing with the same signal that interrupted us. | |
966 | Otherwise complain. */ | |
967 | ||
968 | child_continue (continue_status, tid); | |
969 | } | |
970 | ||
255e7678 DJ |
971 | static void |
972 | win32_add_one_solib (const char *name, CORE_ADDR load_addr) | |
973 | { | |
974 | char buf[MAX_PATH + 1]; | |
975 | char buf2[MAX_PATH + 1]; | |
976 | ||
977 | #ifdef _WIN32_WCE | |
978 | WIN32_FIND_DATA w32_fd; | |
979 | WCHAR wname[MAX_PATH + 1]; | |
980 | mbstowcs (wname, name, MAX_PATH); | |
981 | HANDLE h = FindFirstFile (wname, &w32_fd); | |
982 | #else | |
983 | WIN32_FIND_DATAA w32_fd; | |
984 | HANDLE h = FindFirstFileA (name, &w32_fd); | |
985 | #endif | |
986 | ||
850a0f76 JB |
987 | /* The symbols in a dll are offset by 0x1000, which is the |
988 | offset from 0 of the first byte in an image - because | |
989 | of the file header and the section alignment. */ | |
990 | load_addr += 0x1000; | |
991 | ||
255e7678 DJ |
992 | if (h == INVALID_HANDLE_VALUE) |
993 | strcpy (buf, name); | |
994 | else | |
995 | { | |
996 | FindClose (h); | |
997 | strcpy (buf, name); | |
998 | #ifndef _WIN32_WCE | |
999 | { | |
1000 | char cwd[MAX_PATH + 1]; | |
1001 | char *p; | |
1002 | if (GetCurrentDirectoryA (MAX_PATH + 1, cwd)) | |
1003 | { | |
1004 | p = strrchr (buf, '\\'); | |
1005 | if (p) | |
1006 | p[1] = '\0'; | |
1007 | SetCurrentDirectoryA (buf); | |
1008 | GetFullPathNameA (w32_fd.cFileName, MAX_PATH, buf, &p); | |
1009 | SetCurrentDirectoryA (cwd); | |
1010 | } | |
1011 | } | |
1012 | #endif | |
1013 | } | |
1014 | ||
cf6e3471 PA |
1015 | #ifndef _WIN32_WCE |
1016 | if (strcasecmp (buf, "ntdll.dll") == 0) | |
1017 | { | |
1018 | GetSystemDirectoryA (buf, sizeof (buf)); | |
1019 | strcat (buf, "\\ntdll.dll"); | |
1020 | } | |
1021 | #endif | |
1022 | ||
255e7678 | 1023 | #ifdef __CYGWIN__ |
81239425 | 1024 | cygwin_conv_path (CCP_WIN_A_TO_POSIX, buf, buf2, sizeof (buf2)); |
255e7678 DJ |
1025 | #else |
1026 | strcpy (buf2, buf); | |
1027 | #endif | |
1028 | ||
1029 | loaded_dll (buf2, load_addr); | |
1030 | } | |
1031 | ||
1032 | static char * | |
1033 | get_image_name (HANDLE h, void *address, int unicode) | |
1034 | { | |
1035 | static char buf[(2 * MAX_PATH) + 1]; | |
1036 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
1037 | char *address_ptr; | |
1038 | int len = 0; | |
1039 | char b[2]; | |
e8f0053d | 1040 | SIZE_T done; |
255e7678 DJ |
1041 | |
1042 | /* Attempt to read the name of the dll that was detected. | |
1043 | This is documented to work only when actively debugging | |
1044 | a program. It will not work for attached processes. */ | |
1045 | if (address == NULL) | |
1046 | return NULL; | |
1047 | ||
1048 | #ifdef _WIN32_WCE | |
1049 | /* Windows CE reports the address of the image name, | |
1050 | instead of an address of a pointer into the image name. */ | |
1051 | address_ptr = address; | |
1052 | #else | |
1053 | /* See if we could read the address of a string, and that the | |
1054 | address isn't null. */ | |
1055 | if (!ReadProcessMemory (h, address, &address_ptr, | |
1056 | sizeof (address_ptr), &done) | |
1057 | || done != sizeof (address_ptr) | |
1058 | || !address_ptr) | |
1059 | return NULL; | |
1060 | #endif | |
1061 | ||
1062 | /* Find the length of the string */ | |
1063 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) | |
1064 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
1065 | continue; | |
1066 | ||
1067 | if (!unicode) | |
1068 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
1069 | else | |
1070 | { | |
8d749320 | 1071 | WCHAR *unicode_address = XALLOCAVEC (WCHAR, len); |
255e7678 DJ |
1072 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), |
1073 | &done); | |
1074 | ||
1075 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
1076 | } | |
1077 | ||
1078 | return buf; | |
1079 | } | |
1080 | ||
1081 | typedef BOOL (WINAPI *winapi_EnumProcessModules) (HANDLE, HMODULE *, | |
1082 | DWORD, LPDWORD); | |
1083 | typedef BOOL (WINAPI *winapi_GetModuleInformation) (HANDLE, HMODULE, | |
1084 | LPMODULEINFO, DWORD); | |
1085 | typedef DWORD (WINAPI *winapi_GetModuleFileNameExA) (HANDLE, HMODULE, | |
1086 | LPSTR, DWORD); | |
1087 | ||
1088 | static winapi_EnumProcessModules win32_EnumProcessModules; | |
1089 | static winapi_GetModuleInformation win32_GetModuleInformation; | |
1090 | static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA; | |
1091 | ||
1092 | static BOOL | |
1093 | load_psapi (void) | |
1094 | { | |
1095 | static int psapi_loaded = 0; | |
1096 | static HMODULE dll = NULL; | |
1097 | ||
1098 | if (!psapi_loaded) | |
1099 | { | |
1100 | psapi_loaded = 1; | |
1101 | dll = LoadLibrary (TEXT("psapi.dll")); | |
1102 | if (!dll) | |
1103 | return FALSE; | |
1104 | win32_EnumProcessModules = | |
1105 | GETPROCADDRESS (dll, EnumProcessModules); | |
1106 | win32_GetModuleInformation = | |
1107 | GETPROCADDRESS (dll, GetModuleInformation); | |
1108 | win32_GetModuleFileNameExA = | |
1109 | GETPROCADDRESS (dll, GetModuleFileNameExA); | |
1110 | } | |
1111 | ||
1112 | return (win32_EnumProcessModules != NULL | |
1113 | && win32_GetModuleInformation != NULL | |
1114 | && win32_GetModuleFileNameExA != NULL); | |
1115 | } | |
1116 | ||
379a5e2d | 1117 | #ifndef _WIN32_WCE |
649ebbca | 1118 | |
f25b3fc3 JB |
1119 | /* Iterate over all DLLs currently mapped by our inferior, and |
1120 | add them to our list of solibs. */ | |
379a5e2d JB |
1121 | |
1122 | static void | |
f25b3fc3 | 1123 | win32_add_all_dlls (void) |
379a5e2d | 1124 | { |
379a5e2d JB |
1125 | size_t i; |
1126 | HMODULE dh_buf[1]; | |
1127 | HMODULE *DllHandle = dh_buf; | |
1128 | DWORD cbNeeded; | |
1129 | BOOL ok; | |
1130 | ||
379a5e2d JB |
1131 | if (!load_psapi ()) |
1132 | return; | |
1133 | ||
1134 | cbNeeded = 0; | |
1135 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1136 | DllHandle, | |
1137 | sizeof (HMODULE), | |
1138 | &cbNeeded); | |
1139 | ||
1140 | if (!ok || !cbNeeded) | |
1141 | return; | |
1142 | ||
1143 | DllHandle = (HMODULE *) alloca (cbNeeded); | |
1144 | if (!DllHandle) | |
1145 | return; | |
1146 | ||
1147 | ok = (*win32_EnumProcessModules) (current_process_handle, | |
1148 | DllHandle, | |
1149 | cbNeeded, | |
1150 | &cbNeeded); | |
1151 | if (!ok) | |
1152 | return; | |
1153 | ||
f25b3fc3 | 1154 | for (i = 1; i < ((size_t) cbNeeded / sizeof (HMODULE)); i++) |
379a5e2d JB |
1155 | { |
1156 | MODULEINFO mi; | |
1157 | char dll_name[MAX_PATH]; | |
1158 | ||
1159 | if (!(*win32_GetModuleInformation) (current_process_handle, | |
1160 | DllHandle[i], | |
1161 | &mi, | |
1162 | sizeof (mi))) | |
1163 | continue; | |
1164 | if ((*win32_GetModuleFileNameExA) (current_process_handle, | |
1165 | DllHandle[i], | |
1166 | dll_name, | |
1167 | MAX_PATH) == 0) | |
1168 | continue; | |
850a0f76 | 1169 | win32_add_one_solib (dll_name, (CORE_ADDR) (uintptr_t) mi.lpBaseOfDll); |
379a5e2d JB |
1170 | } |
1171 | } | |
1172 | #endif | |
1173 | ||
255e7678 DJ |
1174 | typedef HANDLE (WINAPI *winapi_CreateToolhelp32Snapshot) (DWORD, DWORD); |
1175 | typedef BOOL (WINAPI *winapi_Module32First) (HANDLE, LPMODULEENTRY32); | |
1176 | typedef BOOL (WINAPI *winapi_Module32Next) (HANDLE, LPMODULEENTRY32); | |
1177 | ||
d763de10 | 1178 | /* Handle a DLL load event. |
255e7678 | 1179 | |
d763de10 JB |
1180 | This function assumes that this event did not occur during inferior |
1181 | initialization, where their event info may be incomplete (see | |
1182 | do_initial_child_stuff and win32_add_all_dlls for more info on | |
1183 | how we handle DLL loading during that phase). */ | |
255e7678 DJ |
1184 | |
1185 | static void | |
1186 | handle_load_dll (void) | |
1187 | { | |
1188 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
d763de10 | 1189 | char *dll_name; |
255e7678 | 1190 | |
d763de10 JB |
1191 | dll_name = get_image_name (current_process_handle, |
1192 | event->lpImageName, event->fUnicode); | |
255e7678 DJ |
1193 | if (!dll_name) |
1194 | return; | |
1195 | ||
850a0f76 | 1196 | win32_add_one_solib (dll_name, (CORE_ADDR) (uintptr_t) event->lpBaseOfDll); |
255e7678 DJ |
1197 | } |
1198 | ||
f25b3fc3 JB |
1199 | /* Handle a DLL unload event. |
1200 | ||
1201 | This function assumes that this event did not occur during inferior | |
1202 | initialization, where their event info may be incomplete (see | |
1203 | do_initial_child_stuff and win32_add_one_solib for more info | |
1204 | on how we handle DLL loading during that phase). */ | |
1205 | ||
255e7678 DJ |
1206 | static void |
1207 | handle_unload_dll (void) | |
1208 | { | |
1209 | CORE_ADDR load_addr = | |
e8f0053d | 1210 | (CORE_ADDR) (uintptr_t) current_event.u.UnloadDll.lpBaseOfDll; |
850a0f76 JB |
1211 | |
1212 | /* The symbols in a dll are offset by 0x1000, which is the | |
1213 | offset from 0 of the first byte in an image - because | |
1214 | of the file header and the section alignment. */ | |
255e7678 DJ |
1215 | load_addr += 0x1000; |
1216 | unloaded_dll (NULL, load_addr); | |
1217 | } | |
1218 | ||
34b34921 | 1219 | static void |
b80864fb DJ |
1220 | handle_exception (struct target_waitstatus *ourstatus) |
1221 | { | |
b80864fb DJ |
1222 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
1223 | ||
7928d571 HD |
1224 | memcpy (&siginfo_er, ¤t_event.u.Exception.ExceptionRecord, |
1225 | sizeof siginfo_er); | |
1226 | ||
b80864fb DJ |
1227 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
1228 | ||
b80864fb DJ |
1229 | switch (code) |
1230 | { | |
1231 | case EXCEPTION_ACCESS_VIOLATION: | |
1232 | OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION")); | |
a493e3e2 | 1233 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
b80864fb DJ |
1234 | break; |
1235 | case STATUS_STACK_OVERFLOW: | |
1236 | OUTMSG2 (("STATUS_STACK_OVERFLOW")); | |
a493e3e2 | 1237 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
b80864fb DJ |
1238 | break; |
1239 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1240 | OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND")); | |
a493e3e2 | 1241 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1242 | break; |
1243 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1244 | OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED")); | |
a493e3e2 | 1245 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1246 | break; |
1247 | case STATUS_FLOAT_INEXACT_RESULT: | |
1248 | OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT")); | |
a493e3e2 | 1249 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1250 | break; |
1251 | case STATUS_FLOAT_INVALID_OPERATION: | |
1252 | OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION")); | |
a493e3e2 | 1253 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1254 | break; |
1255 | case STATUS_FLOAT_OVERFLOW: | |
1256 | OUTMSG2 (("STATUS_FLOAT_OVERFLOW")); | |
a493e3e2 | 1257 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1258 | break; |
1259 | case STATUS_FLOAT_STACK_CHECK: | |
1260 | OUTMSG2 (("STATUS_FLOAT_STACK_CHECK")); | |
a493e3e2 | 1261 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1262 | break; |
1263 | case STATUS_FLOAT_UNDERFLOW: | |
1264 | OUTMSG2 (("STATUS_FLOAT_UNDERFLOW")); | |
a493e3e2 | 1265 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1266 | break; |
1267 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
1268 | OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO")); | |
a493e3e2 | 1269 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1270 | break; |
1271 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
1272 | OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO")); | |
a493e3e2 | 1273 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1274 | break; |
1275 | case STATUS_INTEGER_OVERFLOW: | |
1276 | OUTMSG2 (("STATUS_INTEGER_OVERFLOW")); | |
a493e3e2 | 1277 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
b80864fb DJ |
1278 | break; |
1279 | case EXCEPTION_BREAKPOINT: | |
1280 | OUTMSG2 (("EXCEPTION_BREAKPOINT")); | |
a493e3e2 | 1281 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
ed50f18f PA |
1282 | #ifdef _WIN32_WCE |
1283 | /* Remove the initial breakpoint. */ | |
1284 | check_breakpoints ((CORE_ADDR) (long) current_event | |
1b3f6016 | 1285 | .u.Exception.ExceptionRecord.ExceptionAddress); |
ed50f18f | 1286 | #endif |
b80864fb DJ |
1287 | break; |
1288 | case DBG_CONTROL_C: | |
1289 | OUTMSG2 (("DBG_CONTROL_C")); | |
a493e3e2 | 1290 | ourstatus->value.sig = GDB_SIGNAL_INT; |
b80864fb DJ |
1291 | break; |
1292 | case DBG_CONTROL_BREAK: | |
1293 | OUTMSG2 (("DBG_CONTROL_BREAK")); | |
a493e3e2 | 1294 | ourstatus->value.sig = GDB_SIGNAL_INT; |
b80864fb DJ |
1295 | break; |
1296 | case EXCEPTION_SINGLE_STEP: | |
1297 | OUTMSG2 (("EXCEPTION_SINGLE_STEP")); | |
a493e3e2 | 1298 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1299 | break; |
1300 | case EXCEPTION_ILLEGAL_INSTRUCTION: | |
1301 | OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION")); | |
a493e3e2 | 1302 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
b80864fb DJ |
1303 | break; |
1304 | case EXCEPTION_PRIV_INSTRUCTION: | |
1305 | OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION")); | |
a493e3e2 | 1306 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
b80864fb DJ |
1307 | break; |
1308 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1309 | OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION")); | |
a493e3e2 | 1310 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
b80864fb DJ |
1311 | break; |
1312 | default: | |
1313 | if (current_event.u.Exception.dwFirstChance) | |
34b34921 PA |
1314 | { |
1315 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1316 | return; | |
1317 | } | |
dfe07582 CV |
1318 | OUTMSG2 (("gdbserver: unknown target exception 0x%08x at 0x%s", |
1319 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1320 | phex_nz ((uintptr_t) current_event.u.Exception.ExceptionRecord. | |
1321 | ExceptionAddress, sizeof (uintptr_t)))); | |
a493e3e2 | 1322 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
b80864fb DJ |
1323 | break; |
1324 | } | |
1325 | OUTMSG2 (("\n")); | |
1326 | last_sig = ourstatus->value.sig; | |
b80864fb DJ |
1327 | } |
1328 | ||
4d5d1aaa | 1329 | |
34b34921 | 1330 | static void |
9c80ecd6 | 1331 | suspend_one_thread (thread_info *thread) |
4d5d1aaa | 1332 | { |
e56f8ccb | 1333 | windows_thread_info *th = (windows_thread_info *) thread_target_data (thread); |
4d5d1aaa | 1334 | |
98a03287 | 1335 | th->suspend (); |
4d5d1aaa PA |
1336 | } |
1337 | ||
1338 | static void | |
1339 | fake_breakpoint_event (void) | |
b80864fb | 1340 | { |
4d5d1aaa | 1341 | OUTMSG2(("fake_breakpoint_event\n")); |
b80864fb | 1342 | |
4d5d1aaa PA |
1343 | faked_breakpoint = 1; |
1344 | ||
1345 | memset (¤t_event, 0, sizeof (current_event)); | |
1346 | current_event.dwThreadId = main_thread_id; | |
1347 | current_event.dwDebugEventCode = EXCEPTION_DEBUG_EVENT; | |
1348 | current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1349 | = EXCEPTION_BREAKPOINT; | |
1350 | ||
f0045347 | 1351 | for_each_thread (suspend_one_thread); |
4d5d1aaa PA |
1352 | } |
1353 | ||
b65d95c5 DJ |
1354 | #ifdef _WIN32_WCE |
1355 | static int | |
1356 | auto_delete_breakpoint (CORE_ADDR stop_pc) | |
1357 | { | |
1358 | return 1; | |
1359 | } | |
1360 | #endif | |
1361 | ||
4d5d1aaa PA |
1362 | /* Get the next event from the child. */ |
1363 | ||
1364 | static int | |
1365 | get_child_debug_event (struct target_waitstatus *ourstatus) | |
1366 | { | |
95954743 PA |
1367 | ptid_t ptid; |
1368 | ||
a493e3e2 | 1369 | last_sig = GDB_SIGNAL_0; |
b80864fb DJ |
1370 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
1371 | ||
4d5d1aaa PA |
1372 | /* Check if GDB sent us an interrupt request. */ |
1373 | check_remote_input_interrupt_request (); | |
1374 | ||
1375 | if (soft_interrupt_requested) | |
1376 | { | |
1377 | soft_interrupt_requested = 0; | |
1378 | fake_breakpoint_event (); | |
1379 | goto gotevent; | |
1380 | } | |
1381 | ||
d97903b2 PA |
1382 | #ifndef _WIN32_WCE |
1383 | attaching = 0; | |
1384 | #else | |
1385 | if (attaching) | |
1386 | { | |
1387 | /* WinCE doesn't set an initial breakpoint automatically. To | |
1b3f6016 PA |
1388 | stop the inferior, we flush all currently pending debug |
1389 | events -- the thread list and the dll list are always | |
1390 | reported immediatelly without delay, then, we suspend all | |
1391 | threads and pretend we saw a trap at the current PC of the | |
1392 | main thread. | |
1393 | ||
1394 | Contrary to desktop Windows, Windows CE *does* report the dll | |
1395 | names on LOAD_DLL_DEBUG_EVENTs resulting from a | |
1396 | DebugActiveProcess call. This limits the way we can detect | |
1397 | if all the dlls have already been reported. If we get a real | |
1398 | debug event before leaving attaching, the worst that will | |
1399 | happen is the user will see a spurious breakpoint. */ | |
d97903b2 PA |
1400 | |
1401 | current_event.dwDebugEventCode = 0; | |
1402 | if (!WaitForDebugEvent (¤t_event, 0)) | |
1b3f6016 PA |
1403 | { |
1404 | OUTMSG2(("no attach events left\n")); | |
1405 | fake_breakpoint_event (); | |
1406 | attaching = 0; | |
1407 | } | |
d97903b2 | 1408 | else |
1b3f6016 | 1409 | OUTMSG2(("got attach event\n")); |
d97903b2 PA |
1410 | } |
1411 | else | |
1412 | #endif | |
1413 | { | |
30baf67b | 1414 | /* Keep the wait time low enough for comfortable remote |
1b3f6016 PA |
1415 | interruption, but high enough so gdbserver doesn't become a |
1416 | bottleneck. */ | |
d97903b2 | 1417 | if (!WaitForDebugEvent (¤t_event, 250)) |
912cf4ba PA |
1418 | { |
1419 | DWORD e = GetLastError(); | |
1420 | ||
1421 | if (e == ERROR_PIPE_NOT_CONNECTED) | |
1422 | { | |
1423 | /* This will happen if the loader fails to succesfully | |
1424 | load the application, e.g., if the main executable | |
1425 | tries to pull in a non-existing export from a | |
1426 | DLL. */ | |
1427 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1428 | ourstatus->value.integer = 1; | |
1429 | return 1; | |
1430 | } | |
1431 | ||
1432 | return 0; | |
1433 | } | |
d97903b2 | 1434 | } |
4d5d1aaa PA |
1435 | |
1436 | gotevent: | |
b80864fb | 1437 | |
34b34921 | 1438 | switch (current_event.dwDebugEventCode) |
b80864fb DJ |
1439 | { |
1440 | case CREATE_THREAD_DEBUG_EVENT: | |
1441 | OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT " | |
dfe07582 | 1442 | "for pid=%u tid=%x)\n", |
b80864fb DJ |
1443 | (unsigned) current_event.dwProcessId, |
1444 | (unsigned) current_event.dwThreadId)); | |
1445 | ||
1446 | /* Record the existence of this thread. */ | |
95954743 PA |
1447 | child_add_thread (current_event.dwProcessId, |
1448 | current_event.dwThreadId, | |
711e434b PM |
1449 | current_event.u.CreateThread.hThread, |
1450 | current_event.u.CreateThread.lpThreadLocalBase); | |
b80864fb DJ |
1451 | break; |
1452 | ||
1453 | case EXIT_THREAD_DEBUG_EVENT: | |
1454 | OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT " | |
dfe07582 | 1455 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1456 | (unsigned) current_event.dwProcessId, |
1457 | (unsigned) current_event.dwThreadId)); | |
95954743 PA |
1458 | child_delete_thread (current_event.dwProcessId, |
1459 | current_event.dwThreadId); | |
aeeb81d1 | 1460 | |
9c80ecd6 | 1461 | current_thread = get_first_thread (); |
aeeb81d1 | 1462 | return 1; |
b80864fb DJ |
1463 | |
1464 | case CREATE_PROCESS_DEBUG_EVENT: | |
1465 | OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT " | |
dfe07582 | 1466 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1467 | (unsigned) current_event.dwProcessId, |
1468 | (unsigned) current_event.dwThreadId)); | |
1469 | CloseHandle (current_event.u.CreateProcessInfo.hFile); | |
1470 | ||
1471 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1472 | main_thread_id = current_event.dwThreadId; | |
1473 | ||
b80864fb | 1474 | /* Add the main thread. */ |
95954743 PA |
1475 | child_add_thread (current_event.dwProcessId, |
1476 | main_thread_id, | |
711e434b PM |
1477 | current_event.u.CreateProcessInfo.hThread, |
1478 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
b80864fb | 1479 | |
ed50f18f | 1480 | #ifdef _WIN32_WCE |
d97903b2 PA |
1481 | if (!attaching) |
1482 | { | |
1483 | /* Windows CE doesn't set the initial breakpoint | |
1484 | automatically like the desktop versions of Windows do. | |
1485 | We add it explicitly here. It will be removed as soon as | |
1486 | it is hit. */ | |
1487 | set_breakpoint_at ((CORE_ADDR) (long) current_event.u | |
1488 | .CreateProcessInfo.lpStartAddress, | |
b65d95c5 | 1489 | auto_delete_breakpoint); |
d97903b2 | 1490 | } |
ed50f18f | 1491 | #endif |
b80864fb DJ |
1492 | break; |
1493 | ||
1494 | case EXIT_PROCESS_DEBUG_EVENT: | |
1495 | OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT " | |
dfe07582 | 1496 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1497 | (unsigned) current_event.dwProcessId, |
1498 | (unsigned) current_event.dwThreadId)); | |
559e7e50 EZ |
1499 | { |
1500 | DWORD exit_status = current_event.u.ExitProcess.dwExitCode; | |
1501 | /* If the exit status looks like a fatal exception, but we | |
1502 | don't recognize the exception's code, make the original | |
1503 | exit status value available, to avoid losing information. */ | |
1504 | int exit_signal | |
1505 | = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1; | |
1506 | if (exit_signal == -1) | |
1507 | { | |
1508 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1509 | ourstatus->value.integer = exit_status; | |
1510 | } | |
1511 | else | |
1512 | { | |
1513 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1514 | ourstatus->value.sig = gdb_signal_from_host (exit_signal); | |
1515 | } | |
1516 | } | |
18aae699 | 1517 | child_continue (DBG_CONTINUE, -1); |
b80864fb | 1518 | CloseHandle (current_process_handle); |
9d606399 | 1519 | current_process_handle = NULL; |
b80864fb DJ |
1520 | break; |
1521 | ||
1522 | case LOAD_DLL_DEBUG_EVENT: | |
1523 | OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT " | |
dfe07582 | 1524 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1525 | (unsigned) current_event.dwProcessId, |
1526 | (unsigned) current_event.dwThreadId)); | |
1527 | CloseHandle (current_event.u.LoadDll.hFile); | |
f25b3fc3 JB |
1528 | if (! child_initialization_done) |
1529 | break; | |
255e7678 | 1530 | handle_load_dll (); |
b80864fb DJ |
1531 | |
1532 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
a493e3e2 | 1533 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1534 | break; |
1535 | ||
1536 | case UNLOAD_DLL_DEBUG_EVENT: | |
1537 | OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT " | |
dfe07582 | 1538 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1539 | (unsigned) current_event.dwProcessId, |
1540 | (unsigned) current_event.dwThreadId)); | |
f25b3fc3 JB |
1541 | if (! child_initialization_done) |
1542 | break; | |
255e7678 DJ |
1543 | handle_unload_dll (); |
1544 | ourstatus->kind = TARGET_WAITKIND_LOADED; | |
a493e3e2 | 1545 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
b80864fb DJ |
1546 | break; |
1547 | ||
1548 | case EXCEPTION_DEBUG_EVENT: | |
1549 | OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT " | |
dfe07582 | 1550 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1551 | (unsigned) current_event.dwProcessId, |
1552 | (unsigned) current_event.dwThreadId)); | |
34b34921 | 1553 | handle_exception (ourstatus); |
b80864fb DJ |
1554 | break; |
1555 | ||
1556 | case OUTPUT_DEBUG_STRING_EVENT: | |
1557 | /* A message from the kernel (or Cygwin). */ | |
1558 | OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT " | |
dfe07582 | 1559 | "for pid=%u tid=%x\n", |
b80864fb DJ |
1560 | (unsigned) current_event.dwProcessId, |
1561 | (unsigned) current_event.dwThreadId)); | |
c0879059 | 1562 | handle_output_debug_string (); |
b80864fb DJ |
1563 | break; |
1564 | ||
1565 | default: | |
1566 | OUTMSG2 (("gdbserver: kernel event unknown " | |
dfe07582 | 1567 | "for pid=%u tid=%x code=%x\n", |
b80864fb DJ |
1568 | (unsigned) current_event.dwProcessId, |
1569 | (unsigned) current_event.dwThreadId, | |
dfe07582 | 1570 | (unsigned) current_event.dwDebugEventCode)); |
b80864fb DJ |
1571 | break; |
1572 | } | |
1573 | ||
aeeb81d1 | 1574 | ptid = debug_event_ptid (¤t_event); |
8dc7b443 | 1575 | current_thread = find_thread_ptid (ptid); |
4d5d1aaa | 1576 | return 1; |
b80864fb DJ |
1577 | } |
1578 | ||
1579 | /* Wait for the inferior process to change state. | |
1580 | STATUS will be filled in with a response code to send to GDB. | |
1581 | Returns the signal which caused the process to stop. */ | |
6532e7e3 TBA |
1582 | ptid_t |
1583 | win32_process_target::wait (ptid_t ptid, target_waitstatus *ourstatus, | |
1584 | int options) | |
b80864fb | 1585 | { |
442ea881 | 1586 | struct regcache *regcache; |
95954743 | 1587 | |
4210d83e PA |
1588 | if (cached_status.kind != TARGET_WAITKIND_IGNORE) |
1589 | { | |
1590 | /* The core always does a wait after creating the inferior, and | |
1591 | do_initial_child_stuff already ran the inferior to the | |
1592 | initial breakpoint (or an exit, if creating the process | |
1593 | fails). Report it now. */ | |
1594 | *ourstatus = cached_status; | |
1595 | cached_status.kind = TARGET_WAITKIND_IGNORE; | |
1596 | return debug_event_ptid (¤t_event); | |
1597 | } | |
1598 | ||
b80864fb DJ |
1599 | while (1) |
1600 | { | |
5b1c542e | 1601 | if (!get_child_debug_event (ourstatus)) |
4d5d1aaa | 1602 | continue; |
b80864fb | 1603 | |
5b1c542e | 1604 | switch (ourstatus->kind) |
b80864fb | 1605 | { |
34b34921 | 1606 | case TARGET_WAITKIND_EXITED: |
b80864fb | 1607 | OUTMSG2 (("Child exited with retcode = %x\n", |
5b1c542e | 1608 | ourstatus->value.integer)); |
5ac588cf | 1609 | win32_clear_inferiors (); |
f2907e49 | 1610 | return ptid_t (current_event.dwProcessId); |
34b34921 | 1611 | case TARGET_WAITKIND_STOPPED: |
559e7e50 | 1612 | case TARGET_WAITKIND_SIGNALLED: |
1b3f6016 | 1613 | case TARGET_WAITKIND_LOADED: |
f72f3e60 | 1614 | OUTMSG2 (("Child Stopped with signal = %d \n", |
10357975 | 1615 | ourstatus->value.sig)); |
b80864fb | 1616 | |
0bfdf32f | 1617 | regcache = get_thread_regcache (current_thread, 1); |
442ea881 | 1618 | child_fetch_inferior_registers (regcache, -1); |
95954743 | 1619 | return debug_event_ptid (¤t_event); |
1b3f6016 | 1620 | default: |
5b1c542e | 1621 | OUTMSG (("Ignoring unknown internal event, %d\n", ourstatus->kind)); |
1b3f6016 PA |
1622 | /* fall-through */ |
1623 | case TARGET_WAITKIND_SPURIOUS: | |
34b34921 PA |
1624 | /* do nothing, just continue */ |
1625 | child_continue (DBG_CONTINUE, -1); | |
1626 | break; | |
b80864fb | 1627 | } |
b80864fb DJ |
1628 | } |
1629 | } | |
1630 | ||
1631 | /* Fetch registers from the inferior process. | |
1632 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
a5a4d4cd TBA |
1633 | void |
1634 | win32_process_target::fetch_registers (regcache *regcache, int regno) | |
b80864fb | 1635 | { |
442ea881 | 1636 | child_fetch_inferior_registers (regcache, regno); |
b80864fb DJ |
1637 | } |
1638 | ||
1639 | /* Store registers to the inferior process. | |
1640 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
a5a4d4cd TBA |
1641 | void |
1642 | win32_process_target::store_registers (regcache *regcache, int regno) | |
b80864fb | 1643 | { |
442ea881 | 1644 | child_store_inferior_registers (regcache, regno); |
b80864fb DJ |
1645 | } |
1646 | ||
1647 | /* Read memory from the inferior process. This should generally be | |
1648 | called through read_inferior_memory, which handles breakpoint shadowing. | |
1649 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
e2558df3 TBA |
1650 | int |
1651 | win32_process_target::read_memory (CORE_ADDR memaddr, unsigned char *myaddr, | |
1652 | int len) | |
b80864fb | 1653 | { |
ed50f18f | 1654 | return child_xfer_memory (memaddr, (char *) myaddr, len, 0, 0) != len; |
b80864fb DJ |
1655 | } |
1656 | ||
1657 | /* Write memory to the inferior process. This should generally be | |
1658 | called through write_inferior_memory, which handles breakpoint shadowing. | |
1659 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
1660 | Returns 0 on success and errno on failure. */ | |
e2558df3 TBA |
1661 | int |
1662 | win32_process_target::write_memory (CORE_ADDR memaddr, | |
1663 | const unsigned char *myaddr, int len) | |
b80864fb DJ |
1664 | { |
1665 | return child_xfer_memory (memaddr, (char *) myaddr, len, 1, 0) != len; | |
1666 | } | |
1667 | ||
7390519e | 1668 | /* Send an interrupt request to the inferior process. */ |
eb497a2a TBA |
1669 | void |
1670 | win32_process_target::request_interrupt () | |
7390519e PA |
1671 | { |
1672 | winapi_DebugBreakProcess DebugBreakProcess; | |
1673 | winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent; | |
1674 | ||
1675 | #ifdef _WIN32_WCE | |
1676 | HMODULE dll = GetModuleHandle (_T("COREDLL.DLL")); | |
1677 | #else | |
1678 | HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL")); | |
1679 | #endif | |
1680 | ||
1681 | GenerateConsoleCtrlEvent = GETPROCADDRESS (dll, GenerateConsoleCtrlEvent); | |
1682 | ||
1683 | if (GenerateConsoleCtrlEvent != NULL | |
1684 | && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, current_process_id)) | |
1685 | return; | |
1686 | ||
1687 | /* GenerateConsoleCtrlEvent can fail if process id being debugged is | |
1688 | not a process group id. | |
1689 | Fallback to XP/Vista 'DebugBreakProcess', which generates a | |
1690 | breakpoint exception in the interior process. */ | |
1691 | ||
1692 | DebugBreakProcess = GETPROCADDRESS (dll, DebugBreakProcess); | |
1693 | ||
1694 | if (DebugBreakProcess != NULL | |
1695 | && DebugBreakProcess (current_process_handle)) | |
1696 | return; | |
1697 | ||
4d5d1aaa PA |
1698 | /* Last resort, suspend all threads manually. */ |
1699 | soft_interrupt_requested = 1; | |
7390519e PA |
1700 | } |
1701 | ||
22aa6223 TBA |
1702 | bool |
1703 | win32_process_target::supports_hardware_single_step () | |
1704 | { | |
1705 | return true; | |
1706 | } | |
1707 | ||
59a016f0 PA |
1708 | #ifdef _WIN32_WCE |
1709 | int | |
1710 | win32_error_to_fileio_error (DWORD err) | |
1711 | { | |
1712 | switch (err) | |
1713 | { | |
1714 | case ERROR_BAD_PATHNAME: | |
1715 | case ERROR_FILE_NOT_FOUND: | |
1716 | case ERROR_INVALID_NAME: | |
1717 | case ERROR_PATH_NOT_FOUND: | |
1718 | return FILEIO_ENOENT; | |
1719 | case ERROR_CRC: | |
1720 | case ERROR_IO_DEVICE: | |
1721 | case ERROR_OPEN_FAILED: | |
1722 | return FILEIO_EIO; | |
1723 | case ERROR_INVALID_HANDLE: | |
1724 | return FILEIO_EBADF; | |
1725 | case ERROR_ACCESS_DENIED: | |
1726 | case ERROR_SHARING_VIOLATION: | |
1727 | return FILEIO_EACCES; | |
1728 | case ERROR_NOACCESS: | |
1729 | return FILEIO_EFAULT; | |
1730 | case ERROR_BUSY: | |
1731 | return FILEIO_EBUSY; | |
1732 | case ERROR_ALREADY_EXISTS: | |
1733 | case ERROR_FILE_EXISTS: | |
1734 | return FILEIO_EEXIST; | |
1735 | case ERROR_BAD_DEVICE: | |
1736 | return FILEIO_ENODEV; | |
1737 | case ERROR_DIRECTORY: | |
1738 | return FILEIO_ENOTDIR; | |
1739 | case ERROR_FILENAME_EXCED_RANGE: | |
1740 | case ERROR_INVALID_DATA: | |
1741 | case ERROR_INVALID_PARAMETER: | |
1742 | case ERROR_NEGATIVE_SEEK: | |
1743 | return FILEIO_EINVAL; | |
1744 | case ERROR_TOO_MANY_OPEN_FILES: | |
1745 | return FILEIO_EMFILE; | |
1746 | case ERROR_HANDLE_DISK_FULL: | |
1747 | case ERROR_DISK_FULL: | |
1748 | return FILEIO_ENOSPC; | |
1749 | case ERROR_WRITE_PROTECT: | |
1750 | return FILEIO_EROFS; | |
1751 | case ERROR_NOT_SUPPORTED: | |
1752 | return FILEIO_ENOSYS; | |
1753 | } | |
1754 | ||
1755 | return FILEIO_EUNKNOWN; | |
1756 | } | |
1757 | ||
ea06bbaa TBA |
1758 | void |
1759 | win32_process_target::hostio_last_error (char *buf) | |
59a016f0 PA |
1760 | { |
1761 | DWORD winerr = GetLastError (); | |
1762 | int fileio_err = win32_error_to_fileio_error (winerr); | |
1763 | sprintf (buf, "F-1,%x", fileio_err); | |
1764 | } | |
1765 | #endif | |
1766 | ||
d7abedf7 TBA |
1767 | bool |
1768 | win32_process_target::supports_qxfer_siginfo () | |
1769 | { | |
1770 | return true; | |
1771 | } | |
1772 | ||
7928d571 HD |
1773 | /* Write Windows signal info. */ |
1774 | ||
d7abedf7 TBA |
1775 | int |
1776 | win32_process_target::qxfer_siginfo (const char *annex, | |
1777 | unsigned char *readbuf, | |
1778 | unsigned const char *writebuf, | |
1779 | CORE_ADDR offset, int len) | |
7928d571 HD |
1780 | { |
1781 | if (siginfo_er.ExceptionCode == 0) | |
1782 | return -1; | |
1783 | ||
1784 | if (readbuf == nullptr) | |
1785 | return -1; | |
1786 | ||
1787 | if (offset > sizeof (siginfo_er)) | |
1788 | return -1; | |
1789 | ||
1790 | if (offset + len > sizeof (siginfo_er)) | |
1791 | len = sizeof (siginfo_er) - offset; | |
1792 | ||
1793 | memcpy (readbuf, (char *) &siginfo_er + offset, len); | |
1794 | ||
1795 | return len; | |
1796 | } | |
1797 | ||
4e2e869c TBA |
1798 | bool |
1799 | win32_process_target::supports_get_tib_address () | |
1800 | { | |
1801 | return true; | |
1802 | } | |
1803 | ||
711e434b PM |
1804 | /* Write Windows OS Thread Information Block address. */ |
1805 | ||
4e2e869c TBA |
1806 | int |
1807 | win32_process_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) | |
711e434b | 1808 | { |
e56f8ccb | 1809 | windows_thread_info *th; |
711e434b PM |
1810 | th = thread_rec (ptid, 0); |
1811 | if (th == NULL) | |
1812 | return 0; | |
1813 | if (addr != NULL) | |
1814 | *addr = th->thread_local_base; | |
1815 | return 1; | |
1816 | } | |
1817 | ||
fb78e89c AT |
1818 | /* Implementation of the target_ops method "sw_breakpoint_from_kind". */ |
1819 | ||
d367006f TBA |
1820 | const gdb_byte * |
1821 | win32_process_target::sw_breakpoint_from_kind (int kind, int *size) | |
fb78e89c AT |
1822 | { |
1823 | *size = the_low_target.breakpoint_len; | |
1824 | return the_low_target.breakpoint; | |
1825 | } | |
1826 | ||
5ef9273d TBA |
1827 | /* The win32 target ops object. */ |
1828 | ||
1829 | static win32_process_target the_win32_target; | |
1830 | ||
b80864fb DJ |
1831 | /* Initialize the Win32 backend. */ |
1832 | void | |
1833 | initialize_low (void) | |
1834 | { | |
52405d85 | 1835 | set_target_ops (&the_win32_target); |
d05b4ac3 | 1836 | the_low_target.arch_setup (); |
b80864fb | 1837 | } |