Commit | Line | Data |
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24e60978 | 1 | /* Target-vector operations for controlling win32 child processes, for GDB. |
b5edcb45 | 2 | Copyright 1995, 1996, 1997, 1998 Free Software Foundation, Inc. |
24e60978 | 3 | Contributed by Cygnus Support. |
e88c49c3 | 4 | |
24e60978 SC |
5 | This file is part of GDB. |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without eve nthe implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
cad9cd60 GN |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
20 | */ | |
24e60978 SC |
21 | |
22 | /* by Steve Chamberlain, sac@cygnus.com */ | |
23 | ||
3cee93ac | 24 | /* We assume we're being built with and will be used for cygwin. */ |
e88c49c3 | 25 | |
24e60978 SC |
26 | #include "defs.h" |
27 | #include "frame.h" /* required by inferior.h */ | |
28 | #include "inferior.h" | |
29 | #include "target.h" | |
30 | #include "wait.h" | |
31 | #include "gdbcore.h" | |
32 | #include "command.h" | |
33 | #include <signal.h> | |
34 | #include <sys/types.h> | |
35 | #include <fcntl.h> | |
cad9cd60 GN |
36 | #include <stdlib.h> |
37 | ||
38 | #ifdef _MSC_VER | |
28444bf3 | 39 | #include "windefs.h" |
cad9cd60 GN |
40 | #else /* other WIN32 compiler */ |
41 | #include <windows.h> | |
42 | #endif | |
43 | ||
24e60978 | 44 | #include "buildsym.h" |
1ef980b9 SC |
45 | #include "symfile.h" |
46 | #include "objfiles.h" | |
24e60978 | 47 | #include "gdb_string.h" |
fdfa3315 | 48 | #include "gdbthread.h" |
24e60978 | 49 | #include "gdbcmd.h" |
1750a5ef | 50 | #include <sys/param.h> |
e88c49c3 | 51 | #include <unistd.h> |
24e60978 | 52 | |
0714f9bf SS |
53 | /* The ui's event loop. */ |
54 | extern int (*ui_loop_hook) PARAMS ((int signo)); | |
55 | ||
56 | /* If we're not using the old Cygwin header file set, define the | |
57 | following which never should have been in the generic Win32 API | |
58 | headers in the first place since they were our own invention... */ | |
59 | #ifndef _GNU_H_WINDOWS_H | |
60 | #define FLAG_TRACE_BIT 0x100 | |
61 | #define CONTEXT_DEBUGGER (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
62 | #endif | |
63 | ||
3cee93ac CF |
64 | /* The string sent by cygwin when it processes a signal. |
65 | FIXME: This should be in a cygwin include file. */ | |
66 | #define CYGWIN_SIGNAL_STRING "cygwin: signal" | |
67 | ||
1ef980b9 SC |
68 | #define CHECK(x) check (x, __FILE__,__LINE__) |
69 | #define DEBUG_EXEC(x) if (debug_exec) printf x | |
70 | #define DEBUG_EVENTS(x) if (debug_events) printf x | |
71 | #define DEBUG_MEM(x) if (debug_memory) printf x | |
72 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf x | |
24e60978 SC |
73 | |
74 | /* Forward declaration */ | |
75 | extern struct target_ops child_ops; | |
76 | ||
b607efe7 | 77 | static void child_stop PARAMS ((void)); |
bc8bd256 | 78 | static int win32_child_thread_alive PARAMS ((int)); |
0714f9bf | 79 | void child_kill_inferior PARAMS ((void)); |
3cee93ac CF |
80 | |
81 | static int last_sig = 0; /* Set if a signal was received from the | |
82 | debugged process */ | |
b607efe7 | 83 | |
3cee93ac CF |
84 | /* Thread information structure used to track information that is |
85 | not available in gdb's thread structure. */ | |
86 | typedef struct thread_info_struct | |
87 | { | |
88 | struct thread_info_struct *next; | |
89 | DWORD id; | |
90 | HANDLE h; | |
91 | char *name; | |
92 | int suspend_count; | |
93 | CONTEXT context; | |
94 | } thread_info; | |
24e60978 | 95 | |
3cee93ac | 96 | static thread_info thread_head = {NULL}; |
24e60978 SC |
97 | |
98 | /* The process and thread handles for the above context. */ | |
99 | ||
3cee93ac CF |
100 | static DEBUG_EVENT current_event; /* The current debug event from |
101 | WaitForDebugEvent */ | |
102 | static HANDLE current_process_handle; /* Currently executing process */ | |
103 | static thread_info *current_thread; /* Info on currently selected thread */ | |
104 | static DWORD main_thread_id; /* Thread ID of the main thread */ | |
24e60978 SC |
105 | |
106 | /* Counts of things. */ | |
107 | static int exception_count = 0; | |
108 | static int event_count = 0; | |
109 | ||
110 | /* User options. */ | |
111 | static int new_console = 0; | |
112 | static int new_group = 0; | |
1ef980b9 SC |
113 | static int debug_exec = 0; /* show execution */ |
114 | static int debug_events = 0; /* show events from kernel */ | |
115 | static int debug_memory = 0; /* show target memory accesses */ | |
116 | static int debug_exceptions = 0; /* show target exceptions */ | |
24e60978 SC |
117 | |
118 | /* This vector maps GDB's idea of a register's number into an address | |
3cee93ac | 119 | in the win32 exception context vector. |
24e60978 | 120 | |
3cee93ac | 121 | It also contains the bit mask needed to load the register in question. |
24e60978 SC |
122 | |
123 | One day we could read a reg, we could inspect the context we | |
124 | already have loaded, if it doesn't have the bit set that we need, | |
125 | we read that set of registers in using GetThreadContext. If the | |
126 | context already contains what we need, we just unpack it. Then to | |
127 | write a register, first we have to ensure that the context contains | |
128 | the other regs of the group, and then we copy the info in and set | |
129 | out bit. */ | |
130 | ||
3cee93ac CF |
131 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) |
132 | static const int mappings[] = | |
24e60978 | 133 | { |
3cee93ac CF |
134 | context_offset(Eax), |
135 | context_offset(Ecx), | |
136 | context_offset(Edx), | |
137 | context_offset(Ebx), | |
138 | context_offset(Esp), | |
139 | context_offset(Ebp), | |
140 | context_offset(Esi), | |
141 | context_offset(Edi), | |
142 | context_offset(Eip), | |
143 | context_offset(EFlags), | |
144 | context_offset(SegCs), | |
145 | context_offset(SegSs), | |
146 | context_offset(SegDs), | |
147 | context_offset(SegEs), | |
148 | context_offset(SegFs), | |
149 | context_offset(SegGs), | |
150 | context_offset(FloatSave.RegisterArea[0 * 10]), | |
151 | context_offset(FloatSave.RegisterArea[1 * 10]), | |
152 | context_offset(FloatSave.RegisterArea[2 * 10]), | |
153 | context_offset(FloatSave.RegisterArea[3 * 10]), | |
154 | context_offset(FloatSave.RegisterArea[4 * 10]), | |
155 | context_offset(FloatSave.RegisterArea[5 * 10]), | |
156 | context_offset(FloatSave.RegisterArea[6 * 10]), | |
157 | context_offset(FloatSave.RegisterArea[7 * 10]), | |
24e60978 SC |
158 | }; |
159 | ||
24e60978 SC |
160 | /* This vector maps the target's idea of an exception (extracted |
161 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
162 | ||
163 | struct xlate_exception | |
164 | { | |
165 | int them; | |
166 | enum target_signal us; | |
167 | }; | |
168 | ||
24e60978 SC |
169 | static const struct xlate_exception |
170 | xlate[] = | |
171 | { | |
172 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 173 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
174 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
175 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
176 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
177 | {-1, -1}}; | |
178 | ||
3cee93ac CF |
179 | /* Find a thread record given a thread id. |
180 | If get_context then also retrieve the context for this | |
181 | thread. */ | |
182 | static thread_info * | |
183 | thread_rec (DWORD id, int get_context) | |
24e60978 | 184 | { |
3cee93ac CF |
185 | thread_info *th; |
186 | ||
187 | for (th = &thread_head; (th = th->next) != NULL; ) | |
188 | if (th->id == id) | |
189 | { | |
190 | if (!th->suspend_count && get_context) | |
191 | { | |
192 | if (get_context > 0) | |
193 | th->suspend_count = SuspendThread (th->h) + 1; | |
194 | else if (get_context < 0) | |
195 | th->suspend_count = -1; | |
196 | ||
197 | th->context.ContextFlags = CONTEXT_DEBUGGER; | |
198 | GetThreadContext (th->h, &th->context); | |
199 | } | |
200 | return th; | |
201 | } | |
202 | ||
203 | return NULL; | |
204 | } | |
205 | ||
206 | /* Add a thread to the thread list */ | |
207 | static thread_info * | |
208 | child_add_thread(DWORD id, HANDLE h) | |
209 | { | |
210 | thread_info *th; | |
211 | ||
212 | if ((th = thread_rec (id, FALSE))) | |
213 | return th; | |
214 | ||
215 | th = (thread_info *) xmalloc (sizeof (*th)); | |
216 | memset(th, 0, sizeof (*th)); | |
217 | th->id = id; | |
218 | th->h = h; | |
219 | th->next = thread_head.next; | |
220 | thread_head.next = th; | |
221 | add_thread (id); | |
222 | return th; | |
24e60978 SC |
223 | } |
224 | ||
3cee93ac CF |
225 | /* Clear out any old thread list and reintialize it to a |
226 | pristine state. */ | |
24e60978 | 227 | static void |
3cee93ac | 228 | child_init_thread_list () |
24e60978 | 229 | { |
3cee93ac CF |
230 | thread_info *th = &thread_head; |
231 | ||
232 | DEBUG_EVENTS (("gdb: child_init_thread_list\n")); | |
233 | init_thread_list (); | |
234 | while (th->next != NULL) | |
24e60978 | 235 | { |
3cee93ac CF |
236 | thread_info *here = th->next; |
237 | th->next = here->next; | |
238 | (void) CloseHandle (here->h); | |
239 | free (here); | |
24e60978 | 240 | } |
3cee93ac CF |
241 | } |
242 | ||
243 | /* Delete a thread from the list of threads */ | |
244 | static void | |
245 | child_delete_thread (DWORD id) | |
246 | { | |
247 | thread_info *th; | |
248 | ||
249 | if (info_verbose) | |
250 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (id)); | |
251 | delete_thread (id); | |
252 | ||
253 | for (th = &thread_head; | |
254 | th->next != NULL && th->next->id != id; | |
255 | th = th->next) | |
256 | continue; | |
257 | ||
258 | if (th->next != NULL) | |
24e60978 | 259 | { |
3cee93ac CF |
260 | thread_info *here = th->next; |
261 | th->next = here->next; | |
262 | CloseHandle (here->h); | |
263 | free (here); | |
24e60978 SC |
264 | } |
265 | } | |
266 | ||
267 | static void | |
3cee93ac CF |
268 | check (BOOL ok, const char *file, int line) |
269 | { | |
270 | if (!ok) | |
271 | printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ()); | |
272 | } | |
273 | ||
274 | static void | |
275 | do_child_fetch_inferior_registers (int r) | |
24e60978 | 276 | { |
3cee93ac CF |
277 | if (r >= 0) |
278 | supply_register (r, ((char *) ¤t_thread->context) + mappings[r]); | |
279 | else | |
24e60978 SC |
280 | { |
281 | for (r = 0; r < NUM_REGS; r++) | |
3cee93ac | 282 | do_child_fetch_inferior_registers (r); |
24e60978 | 283 | } |
3cee93ac CF |
284 | } |
285 | ||
286 | static void | |
287 | child_fetch_inferior_registers (int r) | |
288 | { | |
289 | current_thread = thread_rec (inferior_pid, TRUE); | |
290 | do_child_fetch_inferior_registers (r); | |
291 | } | |
292 | ||
293 | static void | |
294 | do_child_store_inferior_registers (int r) | |
295 | { | |
296 | if (r >= 0) | |
297 | read_register_gen (r, ((char *) ¤t_thread->context) + mappings[r]); | |
24e60978 SC |
298 | else |
299 | { | |
3cee93ac CF |
300 | for (r = 0; r < NUM_REGS; r++) |
301 | do_child_store_inferior_registers (r); | |
24e60978 SC |
302 | } |
303 | } | |
304 | ||
3cee93ac CF |
305 | /* Store a new register value into the current thread context */ |
306 | static void | |
307 | child_store_inferior_registers (int r) | |
308 | { | |
309 | current_thread = thread_rec (inferior_pid, TRUE); | |
310 | do_child_store_inferior_registers (r); | |
311 | } | |
24e60978 SC |
312 | |
313 | /* Wait for child to do something. Return pid of child, or -1 in case | |
314 | of error; store status through argument pointer OURSTATUS. */ | |
315 | ||
1750a5ef | 316 | static int |
bc8bd256 | 317 | handle_load_dll (PTR dummy) |
24e60978 | 318 | { |
3cee93ac | 319 | LOAD_DLL_DEBUG_INFO * event = ¤t_event.u.LoadDll; |
24e60978 SC |
320 | DWORD dll_name_ptr; |
321 | DWORD done; | |
3cee93ac CF |
322 | char dll_buf[MAX_PATH + 1]; |
323 | char *p, *dll_name = NULL, *dll_basename; | |
324 | struct objfile *objfile; | |
325 | MEMORY_BASIC_INFORMATION minfo; | |
326 | ||
327 | dll_buf[0] = dll_buf[sizeof(dll_buf) - 1] = '\0'; | |
328 | ||
329 | /* The following code attempts to find the name of the dll by reading the | |
330 | name from the processes memory. Unfortunately it doesn't work right. | |
331 | Doing this the "right way" for Windows is very difficult. FIXME */ | |
332 | #ifdef DOESNT_WORK | |
333 | memset (&minfo, 0, sizeof minfo); | |
334 | if (VirtualQueryEx (current_process_handle, (LPCVOID) event->lpBaseOfDll, | |
335 | &minfo, sizeof(minfo)) && minfo.BaseAddress) { | |
336 | DWORD len; | |
337 | IMAGE_DOS_HEADER *hmm0 = (IMAGE_DOS_HEADER *) minfo.BaseAddress; | |
338 | HMODULE hmm = (HMODULE) (((DWORD) hmm0) + hmm0->e_lfanew); | |
339 | ||
340 | if ((len = GetModuleFileName (hmm, dll_buf, MAX_PATH))) | |
341 | { | |
342 | dll_name = dll_buf; | |
343 | dll_name[len] = '\0'; | |
344 | } | |
345 | } | |
346 | #endif | |
24e60978 | 347 | |
3cee93ac CF |
348 | /* Attempt to read the name of the dll that was detected. |
349 | This is documented to work only when actively debugging | |
350 | a program. It will not work for attached processes. */ | |
351 | if (dll_name == NULL || *dll_name == '\0') | |
24e60978 | 352 | { |
3cee93ac | 353 | int size = event->fUnicode ? sizeof (WCHAR) : sizeof (char); |
24e60978 SC |
354 | int len = 0; |
355 | char b[2]; | |
3cee93ac CF |
356 | |
357 | ReadProcessMemory (current_process_handle, | |
358 | (LPCVOID) event->lpImageName, | |
359 | (char *) &dll_name_ptr, | |
360 | sizeof (dll_name_ptr), &done); | |
361 | ||
362 | /* See if we could read the address of a string, and that the | |
363 | address isn't null. */ | |
364 | ||
365 | if (done != sizeof (dll_name_ptr) || !dll_name_ptr) | |
366 | return 1; | |
367 | ||
24e60978 SC |
368 | do |
369 | { | |
3cee93ac CF |
370 | ReadProcessMemory (current_process_handle, |
371 | (LPCVOID) (dll_name_ptr + len * size), | |
24e60978 SC |
372 | &b, |
373 | size, | |
374 | &done); | |
375 | len++; | |
376 | } | |
377 | while ((b[0] != 0 || b[size - 1] != 0) && done == size); | |
378 | ||
24e60978 SC |
379 | dll_name = alloca (len); |
380 | ||
3cee93ac | 381 | if (event->fUnicode) |
24e60978 SC |
382 | { |
383 | WCHAR *unicode_dll_name = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
3cee93ac CF |
384 | ReadProcessMemory (current_process_handle, |
385 | (LPCVOID) dll_name_ptr, | |
24e60978 SC |
386 | unicode_dll_name, |
387 | len * sizeof (WCHAR), | |
388 | &done); | |
389 | ||
390 | WideCharToMultiByte (CP_ACP, 0, | |
391 | unicode_dll_name, len, | |
392 | dll_name, len, 0, 0); | |
393 | } | |
394 | else | |
395 | { | |
3cee93ac CF |
396 | ReadProcessMemory (current_process_handle, |
397 | (LPCVOID) dll_name_ptr, | |
24e60978 SC |
398 | dll_name, |
399 | len, | |
400 | &done); | |
401 | } | |
24e60978 | 402 | } |
3cee93ac CF |
403 | |
404 | if (!dll_name) | |
405 | return 1; | |
406 | ||
407 | while ((p = strchr (dll_name, '\\'))) | |
408 | *p = '/'; | |
409 | ||
410 | /* FIXME!! It would be nice to define one symbol which pointed to the | |
411 | front of the dll if we can't find any symbols. */ | |
412 | ||
413 | if (!(dll_basename = strrchr(dll_name, '/'))) | |
414 | dll_basename = dll_name; | |
415 | else | |
416 | dll_basename++; | |
417 | ||
418 | ALL_OBJFILES(objfile) | |
419 | { | |
420 | char *objfile_basename; | |
421 | objfile_basename = strrchr(objfile->name, '/'); | |
422 | ||
423 | if (objfile_basename && | |
424 | strcmp(dll_basename, objfile_basename + 1) == 0) | |
425 | { | |
426 | printf_unfiltered ("%x:%s (symbols previously loaded)\n", | |
427 | event->lpBaseOfDll, dll_name); | |
428 | goto out; | |
429 | } | |
430 | } | |
431 | ||
432 | /* The symbols in a dll are offset by 0x1000, which is the | |
433 | the offset from 0 of the first byte in an image - because | |
434 | of the file header and the section alignment. | |
435 | ||
436 | FIXME: Is this the real reason that we need the 0x1000 ? */ | |
437 | ||
438 | printf_unfiltered ("%x:%s", event->lpBaseOfDll, dll_name); | |
65b07ddc | 439 | symbol_file_add (dll_name, 0, (int) event->lpBaseOfDll + 0x1000, 0, 0, 0, 0, 1); |
3cee93ac CF |
440 | printf_unfiltered ("\n"); |
441 | ||
442 | out: | |
1750a5ef | 443 | return 1; |
24e60978 SC |
444 | } |
445 | ||
3cee93ac CF |
446 | /* Handle DEBUG_STRING output from child process. |
447 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
448 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
449 | static int | |
450 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
451 | { | |
452 | char *s; | |
453 | int gotasig = FALSE; | |
454 | ||
455 | if (!target_read_string | |
456 | ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0) | |
457 | || !s || !*s) | |
458 | return gotasig; | |
459 | ||
460 | if (strncmp(s, CYGWIN_SIGNAL_STRING, sizeof(CYGWIN_SIGNAL_STRING) - 1)) | |
461 | { | |
462 | warning (s); | |
463 | } | |
464 | else | |
465 | { | |
466 | char *p; | |
467 | /*last_sig = */strtol(s + sizeof(CYGWIN_SIGNAL_STRING) - 1, &p, 0); | |
0714f9bf SS |
468 | gotasig = target_signal_from_host (last_sig); |
469 | ourstatus->value.sig = gotasig; | |
470 | if (gotasig) | |
3cee93ac CF |
471 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
472 | } | |
473 | ||
474 | free (s); | |
475 | return gotasig; | |
476 | } | |
24e60978 | 477 | |
36339ecd | 478 | static int |
3cee93ac | 479 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 SC |
480 | { |
481 | int i; | |
482 | int done = 0; | |
3cee93ac CF |
483 | thread_info *th; |
484 | ||
24e60978 SC |
485 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
486 | ||
3cee93ac CF |
487 | /* Record the context of the current thread */ |
488 | th = thread_rec (current_event.dwThreadId, -1); | |
24e60978 | 489 | |
3cee93ac | 490 | switch (current_event.u.Exception.ExceptionRecord.ExceptionCode) |
24e60978 | 491 | { |
1ef980b9 SC |
492 | case EXCEPTION_ACCESS_VIOLATION: |
493 | DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n", | |
3cee93ac | 494 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
495 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
496 | break; | |
497 | case STATUS_STACK_OVERFLOW: | |
498 | DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n", | |
3cee93ac | 499 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
500 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
501 | break; | |
502 | case EXCEPTION_BREAKPOINT: | |
503 | DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n", | |
3cee93ac | 504 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
505 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
506 | break; | |
507 | case DBG_CONTROL_C: | |
508 | DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n", | |
3cee93ac | 509 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 | 510 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
3cee93ac CF |
511 | /* User typed CTRL-C. Continue with this status */ |
512 | last_sig = SIGINT; /* FIXME - should check pass state */ | |
1ef980b9 SC |
513 | break; |
514 | case EXCEPTION_SINGLE_STEP: | |
515 | DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n", | |
3cee93ac | 516 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
517 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
518 | break; | |
519 | default: | |
36339ecd | 520 | /* This may be a structured exception handling exception. In |
3cee93ac CF |
521 | that case, we want to let the program try to handle it, and |
522 | only break if we see the exception a second time. */ | |
523 | if (current_event.u.Exception.dwFirstChance) | |
36339ecd ILT |
524 | return 0; |
525 | ||
1ef980b9 | 526 | printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n", |
3cee93ac CF |
527 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
528 | current_event.u.Exception.ExceptionRecord.ExceptionAddress); | |
24e60978 | 529 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 530 | break; |
24e60978 | 531 | } |
24e60978 | 532 | exception_count++; |
36339ecd | 533 | return 1; |
24e60978 SC |
534 | } |
535 | ||
3cee93ac CF |
536 | /* Resume all artificially suspended threads if we are continuing |
537 | execution */ | |
538 | static BOOL | |
539 | child_continue (DWORD continue_status, int id) | |
540 | { | |
541 | int i; | |
542 | thread_info *th; | |
543 | BOOL res; | |
544 | ||
545 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n", | |
546 | current_event.dwProcessId, current_event.dwThreadId)); | |
0714f9bf SS |
547 | res = ContinueDebugEvent (current_event.dwProcessId, |
548 | current_event.dwThreadId, | |
549 | continue_status); | |
550 | if (res) | |
3cee93ac CF |
551 | for (th = &thread_head; (th = th->next) != NULL; ) |
552 | if (((id == -1) || (id == th->id)) && th->suspend_count) | |
553 | { | |
554 | for (i = 0; i < th->suspend_count; i++) | |
555 | (void) ResumeThread (th->h); | |
556 | th->suspend_count = 0; | |
557 | } | |
558 | ||
559 | return res; | |
560 | } | |
561 | ||
24e60978 SC |
562 | static int |
563 | child_wait (int pid, struct target_waitstatus *ourstatus) | |
564 | { | |
565 | /* We loop when we get a non-standard exception rather than return | |
566 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 567 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 SC |
568 | the birth or death of threads, which mean that the current thread |
569 | isn't necessarily what you think it is. */ | |
570 | ||
571 | while (1) | |
572 | { | |
36339ecd | 573 | DWORD continue_status; |
0714f9bf | 574 | BOOL debug_event = WaitForDebugEvent (¤t_event, 20); |
3cee93ac CF |
575 | char *p; |
576 | thread_info *th; | |
577 | int sig; | |
24e60978 | 578 | |
0714f9bf | 579 | if (debug_event) |
24e60978 | 580 | { |
0714f9bf SS |
581 | event_count++; |
582 | ||
583 | continue_status = DBG_CONTINUE; | |
584 | ||
585 | switch (current_event.dwDebugEventCode) | |
586 | { | |
587 | case CREATE_THREAD_DEBUG_EVENT: | |
588 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
589 | current_event.dwProcessId, current_event.dwThreadId, | |
590 | "CREATE_THREAD_DEBUG_EVENT")); | |
591 | /* Record the existence of this thread */ | |
592 | child_add_thread (current_event.dwThreadId, | |
593 | current_event.u.CreateThread.hThread); | |
594 | if (info_verbose) | |
595 | printf_unfiltered ("[New %s]\n", | |
596 | target_pid_to_str (current_event.dwThreadId)); | |
597 | break; | |
598 | ||
599 | case EXIT_THREAD_DEBUG_EVENT: | |
600 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
601 | current_event.dwProcessId, current_event.dwThreadId, | |
602 | "EXIT_THREAD_DEBUG_EVENT")); | |
603 | child_delete_thread (current_event.dwThreadId); | |
604 | break; | |
605 | ||
606 | case CREATE_PROCESS_DEBUG_EVENT: | |
607 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
608 | current_event.dwProcessId, current_event.dwThreadId, | |
609 | "CREATE_PROCESS_DEBUG_EVENT")); | |
610 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
611 | ||
612 | main_thread_id = inferior_pid = current_event.dwThreadId; | |
613 | /* Add the main thread */ | |
614 | current_thread = child_add_thread (inferior_pid, | |
615 | current_event.u.CreateProcessInfo.hThread); | |
616 | break; | |
617 | ||
618 | case EXIT_PROCESS_DEBUG_EVENT: | |
619 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
620 | current_event.dwProcessId, current_event.dwThreadId, | |
621 | "EXIT_PROCESS_DEBUG_EVENT")); | |
622 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
623 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
624 | CloseHandle (current_process_handle); | |
625 | return current_event.dwProcessId; | |
626 | break; | |
627 | ||
628 | case LOAD_DLL_DEBUG_EVENT: | |
629 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
630 | current_event.dwProcessId, current_event.dwThreadId, | |
631 | "LOAD_DLL_DEBUG_EVENT")); | |
632 | catch_errors (handle_load_dll, NULL, "", RETURN_MASK_ALL); | |
633 | registers_changed(); /* mark all regs invalid */ | |
634 | break; | |
635 | ||
636 | case UNLOAD_DLL_DEBUG_EVENT: | |
637 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
638 | current_event.dwProcessId, current_event.dwThreadId, | |
639 | "UNLOAD_DLL_DEBUG_EVENT")); | |
640 | break; /* FIXME: don't know what to do here */ | |
641 | ||
642 | case EXCEPTION_DEBUG_EVENT: | |
643 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
644 | current_event.dwProcessId, current_event.dwThreadId, | |
645 | "EXCEPTION_DEBUG_EVENT")); | |
646 | if (handle_exception (ourstatus)) | |
647 | return current_event.dwThreadId; | |
648 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
649 | break; | |
650 | ||
651 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ | |
652 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
653 | current_event.dwProcessId, current_event.dwThreadId, | |
654 | "OUTPUT_DEBUG_STRING_EVENT")); | |
655 | if (handle_output_debug_string (ourstatus)) | |
656 | return main_thread_id; | |
657 | break; | |
658 | default: | |
659 | printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n", | |
660 | current_event.dwProcessId, | |
661 | current_event.dwThreadId); | |
662 | printf_unfiltered (" unknown event code %d\n", | |
663 | current_event.dwDebugEventCode); | |
664 | break; | |
665 | } | |
666 | ||
667 | CHECK (child_continue (continue_status, -1)); | |
24e60978 | 668 | } |
0714f9bf SS |
669 | else |
670 | { | |
671 | int detach = 0; | |
3cee93ac | 672 | |
0714f9bf SS |
673 | if (ui_loop_hook != NULL) |
674 | detach = ui_loop_hook (0); | |
675 | ||
676 | if (detach) | |
677 | child_kill_inferior (); | |
678 | } | |
24e60978 SC |
679 | } |
680 | } | |
681 | ||
24e60978 SC |
682 | /* Attach to process PID, then initialize for debugging it. */ |
683 | ||
684 | static void | |
685 | child_attach (args, from_tty) | |
686 | char *args; | |
687 | int from_tty; | |
688 | { | |
689 | BOOL ok; | |
690 | ||
691 | if (!args) | |
692 | error_no_arg ("process-id to attach"); | |
693 | ||
3cee93ac | 694 | current_event.dwProcessId = strtoul (args, 0, 0); |
24e60978 | 695 | |
3cee93ac | 696 | ok = DebugActiveProcess (current_event.dwProcessId); |
24e60978 SC |
697 | |
698 | if (!ok) | |
699 | error ("Can't attach to process."); | |
700 | ||
24e60978 SC |
701 | exception_count = 0; |
702 | event_count = 0; | |
703 | ||
704 | if (from_tty) | |
705 | { | |
706 | char *exec_file = (char *) get_exec_file (0); | |
707 | ||
708 | if (exec_file) | |
709 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
3cee93ac | 710 | target_pid_to_str (current_event.dwProcessId)); |
24e60978 SC |
711 | else |
712 | printf_unfiltered ("Attaching to %s\n", | |
3cee93ac | 713 | target_pid_to_str (current_event.dwProcessId)); |
24e60978 SC |
714 | |
715 | gdb_flush (gdb_stdout); | |
716 | } | |
717 | ||
24e60978 SC |
718 | push_target (&child_ops); |
719 | } | |
720 | ||
24e60978 SC |
721 | static void |
722 | child_detach (args, from_tty) | |
723 | char *args; | |
724 | int from_tty; | |
725 | { | |
726 | if (from_tty) | |
727 | { | |
728 | char *exec_file = get_exec_file (0); | |
729 | if (exec_file == 0) | |
730 | exec_file = ""; | |
731 | printf_unfiltered ("Detaching from program: %s %s\n", exec_file, | |
732 | target_pid_to_str (inferior_pid)); | |
733 | gdb_flush (gdb_stdout); | |
734 | } | |
735 | inferior_pid = 0; | |
736 | unpush_target (&child_ops); | |
737 | } | |
738 | ||
24e60978 SC |
739 | /* Print status information about what we're accessing. */ |
740 | ||
741 | static void | |
742 | child_files_info (ignore) | |
743 | struct target_ops *ignore; | |
744 | { | |
745 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
746 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid)); | |
747 | } | |
748 | ||
749 | /* ARGSUSED */ | |
750 | static void | |
751 | child_open (arg, from_tty) | |
752 | char *arg; | |
753 | int from_tty; | |
754 | { | |
755 | error ("Use the \"run\" command to start a Unix child process."); | |
756 | } | |
757 | ||
eb708f2e | 758 | /* Start an inferior win32 child process and sets inferior_pid to its pid. |
24e60978 SC |
759 | EXEC_FILE is the file to run. |
760 | ALLARGS is a string containing the arguments to the program. | |
761 | ENV is the environment vector to pass. Errors reported with error(). */ | |
762 | ||
24e60978 SC |
763 | static void |
764 | child_create_inferior (exec_file, allargs, env) | |
765 | char *exec_file; | |
766 | char *allargs; | |
767 | char **env; | |
768 | { | |
1750a5ef SC |
769 | char real_path[MAXPATHLEN]; |
770 | char *winenv; | |
771 | char *temp; | |
772 | int envlen; | |
773 | int i; | |
774 | ||
24e60978 SC |
775 | STARTUPINFO si; |
776 | PROCESS_INFORMATION pi; | |
777 | struct target_waitstatus dummy; | |
778 | BOOL ret; | |
779 | DWORD flags; | |
eb708f2e | 780 | char *args; |
24e60978 SC |
781 | |
782 | if (!exec_file) | |
783 | { | |
784 | error ("No executable specified, use `target exec'.\n"); | |
785 | } | |
786 | ||
787 | memset (&si, 0, sizeof (si)); | |
788 | si.cb = sizeof (si); | |
789 | ||
1a443730 | 790 | cygwin32_conv_to_win32_path (exec_file, real_path); |
24e60978 | 791 | |
3cee93ac | 792 | flags = DEBUG_ONLY_THIS_PROCESS; |
24e60978 SC |
793 | |
794 | if (new_group) | |
795 | flags |= CREATE_NEW_PROCESS_GROUP; | |
796 | ||
797 | if (new_console) | |
798 | flags |= CREATE_NEW_CONSOLE; | |
799 | ||
3d78f532 SC |
800 | args = alloca (strlen (real_path) + strlen (allargs) + 2); |
801 | ||
802 | strcpy (args, real_path); | |
eb708f2e | 803 | |
eb708f2e SC |
804 | strcat (args, " "); |
805 | strcat (args, allargs); | |
806 | ||
e88c49c3 DE |
807 | /* Prepare the environment vars for CreateProcess. */ |
808 | { | |
809 | /* This code use to assume all env vars were file names and would | |
810 | translate them all to win32 style. That obviously doesn't work in the | |
2dcfc9c7 DE |
811 | general case. The current rule is that we only translate PATH. |
812 | We need to handle PATH because we're about to call CreateProcess and | |
813 | it uses PATH to find DLL's. Fortunately PATH has a well-defined value | |
814 | in both posix and win32 environments. cygwin.dll will change it back | |
815 | to posix style if necessary. */ | |
e88c49c3 DE |
816 | |
817 | static const char *conv_path_names[] = | |
818 | { | |
819 | "PATH=", | |
820 | 0 | |
821 | }; | |
e88c49c3 DE |
822 | |
823 | /* CreateProcess takes the environment list as a null terminated set of | |
824 | strings (i.e. two nulls terminate the list). */ | |
825 | ||
826 | /* Get total size for env strings. */ | |
827 | for (envlen = 0, i = 0; env[i] && *env[i]; i++) | |
828 | { | |
2dcfc9c7 | 829 | int j, len; |
e88c49c3 | 830 | |
2dcfc9c7 DE |
831 | for (j = 0; conv_path_names[j]; j++) |
832 | { | |
833 | len = strlen (conv_path_names[j]); | |
834 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 835 | { |
1a443730 | 836 | if (cygwin32_posix_path_list_p (env[i] + len)) |
2dcfc9c7 | 837 | envlen += len |
1a443730 | 838 | + cygwin32_posix_to_win32_path_list_buf_size (env[i] + len); |
2dcfc9c7 DE |
839 | else |
840 | envlen += strlen (env[i]) + 1; | |
841 | break; | |
e88c49c3 | 842 | } |
e88c49c3 | 843 | } |
2dcfc9c7 | 844 | if (conv_path_names[j] == NULL) |
e88c49c3 DE |
845 | envlen += strlen (env[i]) + 1; |
846 | } | |
847 | ||
848 | winenv = alloca (envlen + 1); | |
849 | ||
850 | /* Copy env strings into new buffer. */ | |
3cee93ac | 851 | for (temp = winenv, i = 0; env[i] && *env[i]; i++) |
e88c49c3 | 852 | { |
2dcfc9c7 | 853 | int j, len; |
e88c49c3 | 854 | |
2dcfc9c7 DE |
855 | for (j = 0; conv_path_names[j]; j++) |
856 | { | |
857 | len = strlen (conv_path_names[j]); | |
858 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 859 | { |
1a443730 | 860 | if (cygwin32_posix_path_list_p (env[i] + len)) |
e88c49c3 DE |
861 | { |
862 | memcpy (temp, env[i], len); | |
1a443730 | 863 | cygwin32_posix_to_win32_path_list (env[i] + len, temp + len); |
e88c49c3 | 864 | } |
2dcfc9c7 DE |
865 | else |
866 | strcpy (temp, env[i]); | |
867 | break; | |
e88c49c3 | 868 | } |
e88c49c3 | 869 | } |
2dcfc9c7 | 870 | if (conv_path_names[j] == NULL) |
e88c49c3 | 871 | strcpy (temp, env[i]); |
2dcfc9c7 | 872 | |
e88c49c3 DE |
873 | temp += strlen (temp) + 1; |
874 | } | |
875 | ||
876 | /* Final nil string to terminate new env. */ | |
877 | *temp = 0; | |
878 | } | |
1750a5ef | 879 | |
1750a5ef | 880 | ret = CreateProcess (0, |
3d78f532 | 881 | args, /* command line */ |
24e60978 SC |
882 | NULL, /* Security */ |
883 | NULL, /* thread */ | |
884 | TRUE, /* inherit handles */ | |
885 | flags, /* start flags */ | |
1750a5ef | 886 | winenv, |
24e60978 SC |
887 | NULL, /* current directory */ |
888 | &si, | |
889 | &pi); | |
890 | if (!ret) | |
686941a9 | 891 | error ("Error creating process %s, (error %d)\n", exec_file, GetLastError()); |
24e60978 SC |
892 | |
893 | exception_count = 0; | |
894 | event_count = 0; | |
895 | ||
3cee93ac CF |
896 | current_process_handle = pi.hProcess; |
897 | current_event.dwProcessId = pi.dwProcessId; | |
898 | memset (¤t_event, 0, sizeof (current_event)); | |
899 | inferior_pid = current_event.dwThreadId = pi.dwThreadId; | |
24e60978 | 900 | push_target (&child_ops); |
3cee93ac | 901 | child_init_thread_list (); |
24e60978 SC |
902 | init_wait_for_inferior (); |
903 | clear_proceed_status (); | |
904 | target_terminal_init (); | |
905 | target_terminal_inferior (); | |
906 | ||
907 | /* Ignore the first trap */ | |
908 | child_wait (inferior_pid, &dummy); | |
909 | ||
910 | proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0); | |
911 | } | |
912 | ||
913 | static void | |
914 | child_mourn_inferior () | |
915 | { | |
3cee93ac | 916 | (void) child_continue (DBG_CONTINUE, -1); |
24e60978 SC |
917 | unpush_target (&child_ops); |
918 | generic_mourn_inferior (); | |
919 | } | |
920 | ||
24e60978 SC |
921 | /* Send a SIGINT to the process group. This acts just like the user typed a |
922 | ^C on the controlling terminal. */ | |
923 | ||
b607efe7 | 924 | static void |
24e60978 SC |
925 | child_stop () |
926 | { | |
1ef980b9 | 927 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
24e60978 | 928 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, 0)); |
1ef980b9 | 929 | registers_changed(); /* refresh register state */ |
24e60978 SC |
930 | } |
931 | ||
932 | int | |
eb708f2e SC |
933 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, |
934 | int write, struct target_ops *target) | |
24e60978 SC |
935 | { |
936 | DWORD done; | |
937 | if (write) | |
938 | { | |
1ef980b9 SC |
939 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08x\n", |
940 | len, memaddr)); | |
3cee93ac CF |
941 | WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our, |
942 | len, &done); | |
943 | FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len); | |
24e60978 SC |
944 | } |
945 | else | |
946 | { | |
1ef980b9 SC |
947 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08x\n", |
948 | len, memaddr)); | |
3cee93ac CF |
949 | ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, len, |
950 | &done); | |
24e60978 SC |
951 | } |
952 | return done; | |
953 | } | |
954 | ||
955 | void | |
956 | child_kill_inferior (void) | |
957 | { | |
3cee93ac CF |
958 | CHECK (TerminateProcess (current_process_handle, 0)); |
959 | ||
b5edcb45 ILT |
960 | for (;;) |
961 | { | |
3cee93ac | 962 | if (!child_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 963 | break; |
3cee93ac | 964 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 965 | break; |
3cee93ac | 966 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
967 | break; |
968 | } | |
969 | ||
3cee93ac CF |
970 | CHECK (CloseHandle (current_process_handle)); |
971 | ||
972 | /* this may fail in an attached process so don't check. */ | |
973 | (void) CloseHandle (current_thread->h); | |
1ef980b9 | 974 | target_mourn_inferior(); /* or just child_mourn_inferior? */ |
24e60978 SC |
975 | } |
976 | ||
977 | void | |
3cee93ac | 978 | child_resume (int pid, int step, enum target_signal sig) |
24e60978 | 979 | { |
3cee93ac CF |
980 | int i; |
981 | thread_info *th; | |
982 | DWORD continue_status = last_sig > 0 && last_sig < NSIG ? | |
983 | DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE; | |
24e60978 | 984 | |
3cee93ac CF |
985 | DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n", |
986 | pid, step, sig)); | |
987 | ||
988 | /* Get context for currently selected thread */ | |
989 | th = thread_rec (current_event.dwThreadId, FALSE); | |
24e60978 SC |
990 | if (step) |
991 | { | |
1ef980b9 | 992 | #ifdef i386 |
24e60978 SC |
993 | /* Single step by setting t bit */ |
994 | child_fetch_inferior_registers (PS_REGNUM); | |
3cee93ac | 995 | th->context.EFlags |= FLAG_TRACE_BIT; |
454ffae5 | 996 | #endif |
24e60978 SC |
997 | } |
998 | ||
3cee93ac | 999 | if (th->context.ContextFlags) |
24e60978 | 1000 | { |
3cee93ac CF |
1001 | CHECK (SetThreadContext (th->h, &th->context)); |
1002 | th->context.ContextFlags = 0; | |
24e60978 SC |
1003 | } |
1004 | ||
3cee93ac CF |
1005 | /* Allow continuing with the same signal that interrupted us. |
1006 | Otherwise complain. */ | |
1007 | if (sig && sig != last_sig) | |
1008 | fprintf_unfiltered (gdb_stderr, "Can't send signals to the child. signal %d\n", sig); | |
24e60978 | 1009 | |
3cee93ac CF |
1010 | last_sig = 0; |
1011 | child_continue (continue_status, pid); | |
24e60978 SC |
1012 | } |
1013 | ||
1014 | static void | |
1015 | child_prepare_to_store () | |
1016 | { | |
1017 | /* Do nothing, since we can store individual regs */ | |
1018 | } | |
1019 | ||
1020 | static int | |
1021 | child_can_run () | |
1022 | { | |
1023 | return 1; | |
1024 | } | |
1025 | ||
1026 | static void | |
1027 | child_close () | |
1028 | { | |
1ef980b9 | 1029 | DEBUG_EVENTS (("gdb: child_close, inferior_pid=%d\n", inferior_pid)); |
24e60978 | 1030 | } |
1ef980b9 | 1031 | |
c719b714 JM |
1032 | struct target_ops child_ops ; |
1033 | ||
ba4d67c2 FN |
1034 | static void |
1035 | init_child_ops(void) | |
24e60978 | 1036 | { |
3cee93ac | 1037 | child_ops.to_shortname = "child"; |
c719b714 | 1038 | child_ops.to_longname = "Win32 child process"; |
3cee93ac CF |
1039 | child_ops.to_doc = "Win32 child process (started by the \"run\" command)."; |
1040 | child_ops.to_open = child_open; | |
1041 | child_ops.to_close = child_close; | |
1042 | child_ops.to_attach = child_attach; | |
1043 | child_ops.to_detach = child_detach; | |
1044 | child_ops.to_resume = child_resume; | |
1045 | child_ops.to_wait = child_wait; | |
c719b714 JM |
1046 | child_ops.to_fetch_registers = child_fetch_inferior_registers; |
1047 | child_ops.to_store_registers = child_store_inferior_registers; | |
3cee93ac CF |
1048 | child_ops.to_prepare_to_store = child_prepare_to_store; |
1049 | child_ops.to_xfer_memory = child_xfer_memory; | |
1050 | child_ops.to_files_info = child_files_info; | |
c719b714 JM |
1051 | child_ops.to_insert_breakpoint = memory_insert_breakpoint; |
1052 | child_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
1053 | child_ops.to_terminal_init = terminal_init_inferior; | |
3cee93ac | 1054 | child_ops.to_terminal_inferior = terminal_inferior; |
c719b714 | 1055 | child_ops.to_terminal_ours_for_output = terminal_ours_for_output; |
3cee93ac CF |
1056 | child_ops.to_terminal_ours = terminal_ours; |
1057 | child_ops.to_terminal_info = child_terminal_info; | |
1058 | child_ops.to_kill = child_kill_inferior; | |
1059 | child_ops.to_load = 0; | |
1060 | child_ops.to_lookup_symbol = 0; | |
c719b714 | 1061 | child_ops.to_create_inferior = child_create_inferior; |
3cee93ac CF |
1062 | child_ops.to_mourn_inferior = child_mourn_inferior; |
1063 | child_ops.to_can_run = child_can_run; | |
1064 | child_ops.to_notice_signals = 0; | |
bc8bd256 | 1065 | child_ops.to_thread_alive = win32_child_thread_alive; |
3cee93ac | 1066 | child_ops.to_stop = child_stop; |
c719b714 | 1067 | child_ops.to_stratum = process_stratum; |
3cee93ac CF |
1068 | child_ops.DONT_USE = 0; |
1069 | child_ops.to_has_all_memory = 1; | |
1070 | child_ops.to_has_memory = 1; | |
1071 | child_ops.to_has_stack = 1; | |
1072 | child_ops.to_has_registers = 1; | |
1073 | child_ops.to_has_execution = 1; | |
1074 | child_ops.to_sections = 0; | |
1075 | child_ops.to_sections_end = 0; | |
c719b714 JM |
1076 | child_ops.to_magic = OPS_MAGIC; |
1077 | } | |
24e60978 SC |
1078 | |
1079 | void | |
1080 | _initialize_inftarg () | |
1081 | { | |
1ef980b9 | 1082 | struct cmd_list_element *c; |
c719b714 | 1083 | init_child_ops() ; |
1ef980b9 | 1084 | |
24e60978 SC |
1085 | add_show_from_set |
1086 | (add_set_cmd ("new-console", class_support, var_boolean, | |
1087 | (char *) &new_console, | |
1088 | "Set creation of new console when creating child process.", | |
1089 | &setlist), | |
1090 | &showlist); | |
1091 | ||
1092 | add_show_from_set | |
1093 | (add_set_cmd ("new-group", class_support, var_boolean, | |
1094 | (char *) &new_group, | |
1095 | "Set creation of new group when creating child process.", | |
1096 | &setlist), | |
1097 | &showlist); | |
1098 | ||
1ef980b9 SC |
1099 | add_show_from_set |
1100 | (add_set_cmd ("debugexec", class_support, var_boolean, | |
1101 | (char *) &debug_exec, | |
1102 | "Set whether to display execution in child process.", | |
1103 | &setlist), | |
1104 | &showlist); | |
1105 | ||
1106 | add_show_from_set | |
1107 | (add_set_cmd ("debugevents", class_support, var_boolean, | |
1108 | (char *) &debug_events, | |
1109 | "Set whether to display kernel events in child process.", | |
1110 | &setlist), | |
1111 | &showlist); | |
1112 | ||
1113 | add_show_from_set | |
1114 | (add_set_cmd ("debugmemory", class_support, var_boolean, | |
1115 | (char *) &debug_memory, | |
1116 | "Set whether to display memory accesses in child process.", | |
1117 | &setlist), | |
1118 | &showlist); | |
1119 | ||
1120 | add_show_from_set | |
1121 | (add_set_cmd ("debugexceptions", class_support, var_boolean, | |
1122 | (char *) &debug_exceptions, | |
1123 | "Set whether to display kernel exceptions in child process.", | |
1124 | &setlist), | |
1125 | &showlist); | |
1126 | ||
24e60978 SC |
1127 | add_target (&child_ops); |
1128 | } | |
3cee93ac CF |
1129 | |
1130 | /* Determine if the thread referenced by "pid" is alive | |
1131 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 | |
1132 | it means that the pid has died. Otherwise it is assumed to be alive. */ | |
1133 | static int | |
bc8bd256 | 1134 | win32_child_thread_alive (int pid) |
3cee93ac CF |
1135 | { |
1136 | return WaitForSingleObject(thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ? | |
1137 | FALSE : TRUE; | |
1138 | } | |
1139 | ||
1140 | /* Convert pid to printable format. */ | |
1141 | char * | |
1142 | cygwin_pid_to_str (int pid) | |
1143 | { | |
1144 | static char buf[80]; | |
1145 | if (pid == current_event.dwProcessId) | |
1146 | sprintf (buf, "process %d", pid); | |
1147 | else | |
1148 | sprintf (buf, "thread %d.0x%x", current_event.dwProcessId, pid); | |
1149 | return buf; | |
1150 | } |