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 | |
3a4b77d8 JM |
19 | Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. | |
21 | */ | |
24e60978 SC |
22 | |
23 | /* by Steve Chamberlain, sac@cygnus.com */ | |
24 | ||
3cee93ac | 25 | /* We assume we're being built with and will be used for cygwin. */ |
e88c49c3 | 26 | |
24e60978 SC |
27 | #include "defs.h" |
28 | #include "frame.h" /* required by inferior.h */ | |
29 | #include "inferior.h" | |
30 | #include "target.h" | |
31 | #include "wait.h" | |
32 | #include "gdbcore.h" | |
33 | #include "command.h" | |
34 | #include <signal.h> | |
35 | #include <sys/types.h> | |
36 | #include <fcntl.h> | |
cad9cd60 GN |
37 | #include <stdlib.h> |
38 | ||
39 | #ifdef _MSC_VER | |
28444bf3 | 40 | #include "windefs.h" |
cad9cd60 GN |
41 | #else /* other WIN32 compiler */ |
42 | #include <windows.h> | |
43 | #endif | |
44 | ||
24e60978 | 45 | #include "buildsym.h" |
1ef980b9 SC |
46 | #include "symfile.h" |
47 | #include "objfiles.h" | |
24e60978 | 48 | #include "gdb_string.h" |
fdfa3315 | 49 | #include "gdbthread.h" |
24e60978 | 50 | #include "gdbcmd.h" |
1750a5ef | 51 | #include <sys/param.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 | |
3a4b77d8 JM |
87 | { |
88 | struct thread_info_struct *next; | |
89 | DWORD id; | |
90 | HANDLE h; | |
91 | char *name; | |
92 | int suspend_count; | |
93 | CONTEXT context; | |
94 | } | |
95 | thread_info; | |
24e60978 | 96 | |
3a4b77d8 JM |
97 | static thread_info thread_head = |
98 | {NULL}; | |
24e60978 SC |
99 | |
100 | /* The process and thread handles for the above context. */ | |
101 | ||
3cee93ac CF |
102 | static DEBUG_EVENT current_event; /* The current debug event from |
103 | WaitForDebugEvent */ | |
104 | static HANDLE current_process_handle; /* Currently executing process */ | |
105 | static thread_info *current_thread; /* Info on currently selected thread */ | |
3a4b77d8 | 106 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 SC |
107 | |
108 | /* Counts of things. */ | |
109 | static int exception_count = 0; | |
110 | static int event_count = 0; | |
111 | ||
112 | /* User options. */ | |
113 | static int new_console = 0; | |
114 | static int new_group = 0; | |
3a4b77d8 JM |
115 | static int debug_exec = 0; /* show execution */ |
116 | static int debug_events = 0; /* show events from kernel */ | |
117 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 118 | static int debug_exceptions = 0; /* show target exceptions */ |
24e60978 SC |
119 | |
120 | /* This vector maps GDB's idea of a register's number into an address | |
3cee93ac | 121 | in the win32 exception context vector. |
24e60978 | 122 | |
3cee93ac | 123 | It also contains the bit mask needed to load the register in question. |
24e60978 SC |
124 | |
125 | One day we could read a reg, we could inspect the context we | |
126 | already have loaded, if it doesn't have the bit set that we need, | |
127 | we read that set of registers in using GetThreadContext. If the | |
128 | context already contains what we need, we just unpack it. Then to | |
129 | write a register, first we have to ensure that the context contains | |
130 | the other regs of the group, and then we copy the info in and set | |
131 | out bit. */ | |
132 | ||
3cee93ac CF |
133 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) |
134 | static const int mappings[] = | |
24e60978 | 135 | { |
3a4b77d8 JM |
136 | context_offset (Eax), |
137 | context_offset (Ecx), | |
138 | context_offset (Edx), | |
139 | context_offset (Ebx), | |
140 | context_offset (Esp), | |
141 | context_offset (Ebp), | |
142 | context_offset (Esi), | |
143 | context_offset (Edi), | |
144 | context_offset (Eip), | |
145 | context_offset (EFlags), | |
146 | context_offset (SegCs), | |
147 | context_offset (SegSs), | |
148 | context_offset (SegDs), | |
149 | context_offset (SegEs), | |
150 | context_offset (SegFs), | |
151 | context_offset (SegGs), | |
152 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
153 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
154 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
155 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
156 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
157 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
158 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
159 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
24e60978 SC |
160 | }; |
161 | ||
24e60978 SC |
162 | /* This vector maps the target's idea of an exception (extracted |
163 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
164 | ||
165 | struct xlate_exception | |
166 | { | |
167 | int them; | |
168 | enum target_signal us; | |
169 | }; | |
170 | ||
24e60978 SC |
171 | static const struct xlate_exception |
172 | xlate[] = | |
173 | { | |
174 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 175 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
176 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
177 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
178 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
179 | {-1, -1}}; | |
180 | ||
3cee93ac CF |
181 | /* Find a thread record given a thread id. |
182 | If get_context then also retrieve the context for this | |
183 | thread. */ | |
184 | static thread_info * | |
185 | thread_rec (DWORD id, int get_context) | |
24e60978 | 186 | { |
3cee93ac CF |
187 | thread_info *th; |
188 | ||
3a4b77d8 | 189 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
190 | if (th->id == id) |
191 | { | |
192 | if (!th->suspend_count && get_context) | |
193 | { | |
194 | if (get_context > 0) | |
195 | th->suspend_count = SuspendThread (th->h) + 1; | |
196 | else if (get_context < 0) | |
197 | th->suspend_count = -1; | |
198 | ||
199 | th->context.ContextFlags = CONTEXT_DEBUGGER; | |
200 | GetThreadContext (th->h, &th->context); | |
201 | } | |
202 | return th; | |
203 | } | |
204 | ||
205 | return NULL; | |
206 | } | |
207 | ||
208 | /* Add a thread to the thread list */ | |
209 | static thread_info * | |
3a4b77d8 | 210 | child_add_thread (DWORD id, HANDLE h) |
3cee93ac CF |
211 | { |
212 | thread_info *th; | |
213 | ||
214 | if ((th = thread_rec (id, FALSE))) | |
215 | return th; | |
216 | ||
217 | th = (thread_info *) xmalloc (sizeof (*th)); | |
3a4b77d8 | 218 | memset (th, 0, sizeof (*th)); |
3cee93ac CF |
219 | th->id = id; |
220 | th->h = h; | |
221 | th->next = thread_head.next; | |
222 | thread_head.next = th; | |
223 | add_thread (id); | |
224 | return th; | |
24e60978 SC |
225 | } |
226 | ||
3cee93ac CF |
227 | /* Clear out any old thread list and reintialize it to a |
228 | pristine state. */ | |
24e60978 | 229 | static void |
3cee93ac | 230 | child_init_thread_list () |
24e60978 | 231 | { |
3cee93ac CF |
232 | thread_info *th = &thread_head; |
233 | ||
234 | DEBUG_EVENTS (("gdb: child_init_thread_list\n")); | |
235 | init_thread_list (); | |
236 | while (th->next != NULL) | |
24e60978 | 237 | { |
3cee93ac CF |
238 | thread_info *here = th->next; |
239 | th->next = here->next; | |
240 | (void) CloseHandle (here->h); | |
241 | free (here); | |
24e60978 | 242 | } |
3cee93ac CF |
243 | } |
244 | ||
245 | /* Delete a thread from the list of threads */ | |
246 | static void | |
247 | child_delete_thread (DWORD id) | |
248 | { | |
249 | thread_info *th; | |
250 | ||
251 | if (info_verbose) | |
252 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (id)); | |
253 | delete_thread (id); | |
254 | ||
255 | for (th = &thread_head; | |
256 | th->next != NULL && th->next->id != id; | |
257 | th = th->next) | |
258 | continue; | |
259 | ||
260 | if (th->next != NULL) | |
24e60978 | 261 | { |
3cee93ac CF |
262 | thread_info *here = th->next; |
263 | th->next = here->next; | |
264 | CloseHandle (here->h); | |
265 | free (here); | |
24e60978 SC |
266 | } |
267 | } | |
268 | ||
269 | static void | |
3cee93ac CF |
270 | check (BOOL ok, const char *file, int line) |
271 | { | |
272 | if (!ok) | |
273 | printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ()); | |
274 | } | |
275 | ||
276 | static void | |
277 | do_child_fetch_inferior_registers (int r) | |
24e60978 | 278 | { |
3cee93ac CF |
279 | if (r >= 0) |
280 | supply_register (r, ((char *) ¤t_thread->context) + mappings[r]); | |
281 | else | |
24e60978 SC |
282 | { |
283 | for (r = 0; r < NUM_REGS; r++) | |
3cee93ac | 284 | do_child_fetch_inferior_registers (r); |
24e60978 | 285 | } |
3cee93ac CF |
286 | } |
287 | ||
288 | static void | |
289 | child_fetch_inferior_registers (int r) | |
290 | { | |
291 | current_thread = thread_rec (inferior_pid, TRUE); | |
292 | do_child_fetch_inferior_registers (r); | |
293 | } | |
294 | ||
295 | static void | |
296 | do_child_store_inferior_registers (int r) | |
297 | { | |
298 | if (r >= 0) | |
299 | read_register_gen (r, ((char *) ¤t_thread->context) + mappings[r]); | |
24e60978 SC |
300 | else |
301 | { | |
3cee93ac CF |
302 | for (r = 0; r < NUM_REGS; r++) |
303 | do_child_store_inferior_registers (r); | |
24e60978 SC |
304 | } |
305 | } | |
306 | ||
3cee93ac CF |
307 | /* Store a new register value into the current thread context */ |
308 | static void | |
309 | child_store_inferior_registers (int r) | |
310 | { | |
311 | current_thread = thread_rec (inferior_pid, TRUE); | |
312 | do_child_store_inferior_registers (r); | |
313 | } | |
24e60978 SC |
314 | |
315 | /* Wait for child to do something. Return pid of child, or -1 in case | |
316 | of error; store status through argument pointer OURSTATUS. */ | |
317 | ||
1750a5ef | 318 | static int |
bc8bd256 | 319 | handle_load_dll (PTR dummy) |
24e60978 | 320 | { |
3a4b77d8 | 321 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
24e60978 SC |
322 | DWORD dll_name_ptr; |
323 | DWORD done; | |
3cee93ac | 324 | char dll_buf[MAX_PATH + 1]; |
041d852c | 325 | char *p, *dll_name = NULL; |
3cee93ac CF |
326 | struct objfile *objfile; |
327 | MEMORY_BASIC_INFORMATION minfo; | |
3e9c4287 | 328 | struct section_addr_info section_addrs; |
3cee93ac | 329 | |
3e9c4287 | 330 | memset (§ion_addrs, 0, sizeof (section_addrs)); |
3a4b77d8 | 331 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac CF |
332 | |
333 | /* The following code attempts to find the name of the dll by reading the | |
334 | name from the processes memory. Unfortunately it doesn't work right. | |
335 | Doing this the "right way" for Windows is very difficult. FIXME */ | |
336 | #ifdef DOESNT_WORK | |
337 | memset (&minfo, 0, sizeof minfo); | |
338 | if (VirtualQueryEx (current_process_handle, (LPCVOID) event->lpBaseOfDll, | |
3a4b77d8 JM |
339 | &minfo, sizeof (minfo)) && minfo.BaseAddress) |
340 | { | |
3cee93ac CF |
341 | DWORD len; |
342 | IMAGE_DOS_HEADER *hmm0 = (IMAGE_DOS_HEADER *) minfo.BaseAddress; | |
343 | HMODULE hmm = (HMODULE) (((DWORD) hmm0) + hmm0->e_lfanew); | |
344 | ||
345 | if ((len = GetModuleFileName (hmm, dll_buf, MAX_PATH))) | |
346 | { | |
347 | dll_name = dll_buf; | |
348 | dll_name[len] = '\0'; | |
349 | } | |
3a4b77d8 | 350 | } |
3cee93ac | 351 | #endif |
24e60978 | 352 | |
3cee93ac CF |
353 | /* Attempt to read the name of the dll that was detected. |
354 | This is documented to work only when actively debugging | |
355 | a program. It will not work for attached processes. */ | |
356 | if (dll_name == NULL || *dll_name == '\0') | |
24e60978 | 357 | { |
3cee93ac | 358 | int size = event->fUnicode ? sizeof (WCHAR) : sizeof (char); |
24e60978 SC |
359 | int len = 0; |
360 | char b[2]; | |
3cee93ac CF |
361 | |
362 | ReadProcessMemory (current_process_handle, | |
363 | (LPCVOID) event->lpImageName, | |
364 | (char *) &dll_name_ptr, | |
365 | sizeof (dll_name_ptr), &done); | |
366 | ||
367 | /* See if we could read the address of a string, and that the | |
3a4b77d8 | 368 | address isn't null. */ |
3cee93ac CF |
369 | |
370 | if (done != sizeof (dll_name_ptr) || !dll_name_ptr) | |
371 | return 1; | |
372 | ||
24e60978 SC |
373 | do |
374 | { | |
3cee93ac CF |
375 | ReadProcessMemory (current_process_handle, |
376 | (LPCVOID) (dll_name_ptr + len * size), | |
24e60978 SC |
377 | &b, |
378 | size, | |
379 | &done); | |
380 | len++; | |
381 | } | |
382 | while ((b[0] != 0 || b[size - 1] != 0) && done == size); | |
383 | ||
24e60978 SC |
384 | dll_name = alloca (len); |
385 | ||
3cee93ac | 386 | if (event->fUnicode) |
24e60978 SC |
387 | { |
388 | WCHAR *unicode_dll_name = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
3cee93ac CF |
389 | ReadProcessMemory (current_process_handle, |
390 | (LPCVOID) dll_name_ptr, | |
24e60978 SC |
391 | unicode_dll_name, |
392 | len * sizeof (WCHAR), | |
393 | &done); | |
394 | ||
395 | WideCharToMultiByte (CP_ACP, 0, | |
396 | unicode_dll_name, len, | |
397 | dll_name, len, 0, 0); | |
398 | } | |
399 | else | |
400 | { | |
3cee93ac CF |
401 | ReadProcessMemory (current_process_handle, |
402 | (LPCVOID) dll_name_ptr, | |
24e60978 SC |
403 | dll_name, |
404 | len, | |
405 | &done); | |
406 | } | |
24e60978 | 407 | } |
3cee93ac CF |
408 | |
409 | if (!dll_name) | |
410 | return 1; | |
411 | ||
412 | while ((p = strchr (dll_name, '\\'))) | |
413 | *p = '/'; | |
414 | ||
3cee93ac CF |
415 | /* The symbols in a dll are offset by 0x1000, which is the |
416 | the offset from 0 of the first byte in an image - because | |
417 | of the file header and the section alignment. | |
418 | ||
419 | FIXME: Is this the real reason that we need the 0x1000 ? */ | |
420 | ||
421 | printf_unfiltered ("%x:%s", event->lpBaseOfDll, dll_name); | |
3e9c4287 | 422 | section_addrs.text_addr = (int) event->lpBaseOfDll + 0x1000; |
50a6e31f | 423 | symbol_file_add (dll_name, 0, §ion_addrs, 0, OBJF_SHARED); |
3cee93ac CF |
424 | printf_unfiltered ("\n"); |
425 | ||
1750a5ef | 426 | return 1; |
24e60978 SC |
427 | } |
428 | ||
3cee93ac CF |
429 | /* Handle DEBUG_STRING output from child process. |
430 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
431 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
432 | static int | |
433 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
434 | { | |
435 | char *s; | |
436 | int gotasig = FALSE; | |
437 | ||
438 | if (!target_read_string | |
3a4b77d8 | 439 | ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0) |
3cee93ac CF |
440 | || !s || !*s) |
441 | return gotasig; | |
442 | ||
3a4b77d8 | 443 | if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1)) |
3cee93ac CF |
444 | { |
445 | warning (s); | |
446 | } | |
447 | else | |
448 | { | |
449 | char *p; | |
3a4b77d8 | 450 | /*last_sig = */ strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0714f9bf SS |
451 | gotasig = target_signal_from_host (last_sig); |
452 | ourstatus->value.sig = gotasig; | |
453 | if (gotasig) | |
3cee93ac CF |
454 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
455 | } | |
456 | ||
457 | free (s); | |
458 | return gotasig; | |
459 | } | |
24e60978 | 460 | |
36339ecd | 461 | static int |
3cee93ac | 462 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 SC |
463 | { |
464 | int i; | |
465 | int done = 0; | |
3cee93ac CF |
466 | thread_info *th; |
467 | ||
24e60978 SC |
468 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
469 | ||
3cee93ac CF |
470 | /* Record the context of the current thread */ |
471 | th = thread_rec (current_event.dwThreadId, -1); | |
24e60978 | 472 | |
3cee93ac | 473 | switch (current_event.u.Exception.ExceptionRecord.ExceptionCode) |
24e60978 | 474 | { |
1ef980b9 SC |
475 | case EXCEPTION_ACCESS_VIOLATION: |
476 | DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n", | |
3a4b77d8 | 477 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
478 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
479 | break; | |
480 | case STATUS_STACK_OVERFLOW: | |
481 | DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n", | |
3a4b77d8 | 482 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
483 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
484 | break; | |
485 | case EXCEPTION_BREAKPOINT: | |
486 | DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n", | |
3a4b77d8 | 487 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
488 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
489 | break; | |
490 | case DBG_CONTROL_C: | |
491 | DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n", | |
3a4b77d8 | 492 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 | 493 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
3cee93ac CF |
494 | /* User typed CTRL-C. Continue with this status */ |
495 | last_sig = SIGINT; /* FIXME - should check pass state */ | |
1ef980b9 SC |
496 | break; |
497 | case EXCEPTION_SINGLE_STEP: | |
498 | DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n", | |
3a4b77d8 | 499 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
500 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
501 | break; | |
502 | default: | |
36339ecd | 503 | /* This may be a structured exception handling exception. In |
3a4b77d8 JM |
504 | that case, we want to let the program try to handle it, and |
505 | only break if we see the exception a second time. */ | |
3cee93ac | 506 | if (current_event.u.Exception.dwFirstChance) |
36339ecd ILT |
507 | return 0; |
508 | ||
1ef980b9 | 509 | printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n", |
3a4b77d8 JM |
510 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
511 | current_event.u.Exception.ExceptionRecord.ExceptionAddress); | |
24e60978 | 512 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 513 | break; |
24e60978 | 514 | } |
24e60978 | 515 | exception_count++; |
36339ecd | 516 | return 1; |
24e60978 SC |
517 | } |
518 | ||
3cee93ac CF |
519 | /* Resume all artificially suspended threads if we are continuing |
520 | execution */ | |
521 | static BOOL | |
522 | child_continue (DWORD continue_status, int id) | |
523 | { | |
524 | int i; | |
525 | thread_info *th; | |
526 | BOOL res; | |
527 | ||
528 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n", | |
529 | current_event.dwProcessId, current_event.dwThreadId)); | |
0714f9bf SS |
530 | res = ContinueDebugEvent (current_event.dwProcessId, |
531 | current_event.dwThreadId, | |
532 | continue_status); | |
533 | if (res) | |
3a4b77d8 | 534 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
535 | if (((id == -1) || (id == th->id)) && th->suspend_count) |
536 | { | |
537 | for (i = 0; i < th->suspend_count; i++) | |
538 | (void) ResumeThread (th->h); | |
539 | th->suspend_count = 0; | |
540 | } | |
541 | ||
542 | return res; | |
543 | } | |
544 | ||
24e60978 SC |
545 | static int |
546 | child_wait (int pid, struct target_waitstatus *ourstatus) | |
547 | { | |
548 | /* We loop when we get a non-standard exception rather than return | |
549 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 550 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 SC |
551 | the birth or death of threads, which mean that the current thread |
552 | isn't necessarily what you think it is. */ | |
553 | ||
554 | while (1) | |
555 | { | |
36339ecd | 556 | DWORD continue_status; |
0714f9bf | 557 | BOOL debug_event = WaitForDebugEvent (¤t_event, 20); |
3cee93ac CF |
558 | char *p; |
559 | thread_info *th; | |
560 | int sig; | |
24e60978 | 561 | |
0714f9bf | 562 | if (debug_event) |
24e60978 | 563 | { |
0714f9bf SS |
564 | event_count++; |
565 | ||
566 | continue_status = DBG_CONTINUE; | |
567 | ||
568 | switch (current_event.dwDebugEventCode) | |
569 | { | |
570 | case CREATE_THREAD_DEBUG_EVENT: | |
571 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
3a4b77d8 | 572 | current_event.dwProcessId, current_event.dwThreadId, |
0714f9bf SS |
573 | "CREATE_THREAD_DEBUG_EVENT")); |
574 | /* Record the existence of this thread */ | |
575 | child_add_thread (current_event.dwThreadId, | |
576 | current_event.u.CreateThread.hThread); | |
577 | if (info_verbose) | |
578 | printf_unfiltered ("[New %s]\n", | |
3a4b77d8 | 579 | target_pid_to_str (current_event.dwThreadId)); |
0714f9bf SS |
580 | break; |
581 | ||
582 | case EXIT_THREAD_DEBUG_EVENT: | |
583 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
3a4b77d8 | 584 | current_event.dwProcessId, current_event.dwThreadId, |
0714f9bf SS |
585 | "EXIT_THREAD_DEBUG_EVENT")); |
586 | child_delete_thread (current_event.dwThreadId); | |
587 | break; | |
588 | ||
589 | case CREATE_PROCESS_DEBUG_EVENT: | |
590 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
3a4b77d8 | 591 | current_event.dwProcessId, current_event.dwThreadId, |
0714f9bf SS |
592 | "CREATE_PROCESS_DEBUG_EVENT")); |
593 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
594 | ||
595 | main_thread_id = inferior_pid = current_event.dwThreadId; | |
596 | /* Add the main thread */ | |
597 | current_thread = child_add_thread (inferior_pid, | |
3a4b77d8 | 598 | current_event.u.CreateProcessInfo.hThread); |
0714f9bf SS |
599 | break; |
600 | ||
601 | case EXIT_PROCESS_DEBUG_EVENT: | |
602 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
3a4b77d8 | 603 | current_event.dwProcessId, current_event.dwThreadId, |
0714f9bf SS |
604 | "EXIT_PROCESS_DEBUG_EVENT")); |
605 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
606 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
607 | CloseHandle (current_process_handle); | |
608 | return current_event.dwProcessId; | |
609 | break; | |
610 | ||
611 | case LOAD_DLL_DEBUG_EVENT: | |
612 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
3a4b77d8 | 613 | current_event.dwProcessId, current_event.dwThreadId, |
0714f9bf SS |
614 | "LOAD_DLL_DEBUG_EVENT")); |
615 | catch_errors (handle_load_dll, NULL, "", RETURN_MASK_ALL); | |
3a4b77d8 | 616 | registers_changed (); /* mark all regs invalid */ |
0714f9bf SS |
617 | break; |
618 | ||
619 | case UNLOAD_DLL_DEBUG_EVENT: | |
620 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
3a4b77d8 | 621 | current_event.dwProcessId, current_event.dwThreadId, |
0714f9bf | 622 | "UNLOAD_DLL_DEBUG_EVENT")); |
3a4b77d8 | 623 | break; /* FIXME: don't know what to do here */ |
0714f9bf SS |
624 | |
625 | case EXCEPTION_DEBUG_EVENT: | |
626 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
3a4b77d8 | 627 | current_event.dwProcessId, current_event.dwThreadId, |
0714f9bf SS |
628 | "EXCEPTION_DEBUG_EVENT")); |
629 | if (handle_exception (ourstatus)) | |
630 | return current_event.dwThreadId; | |
631 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
632 | break; | |
633 | ||
3a4b77d8 | 634 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
0714f9bf | 635 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", |
3a4b77d8 | 636 | current_event.dwProcessId, current_event.dwThreadId, |
0714f9bf SS |
637 | "OUTPUT_DEBUG_STRING_EVENT")); |
638 | if (handle_output_debug_string (ourstatus)) | |
639 | return main_thread_id; | |
640 | break; | |
641 | default: | |
642 | printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n", | |
643 | current_event.dwProcessId, | |
644 | current_event.dwThreadId); | |
645 | printf_unfiltered (" unknown event code %d\n", | |
646 | current_event.dwDebugEventCode); | |
647 | break; | |
648 | } | |
649 | ||
650 | CHECK (child_continue (continue_status, -1)); | |
24e60978 | 651 | } |
0714f9bf SS |
652 | else |
653 | { | |
654 | int detach = 0; | |
3cee93ac | 655 | |
0714f9bf SS |
656 | if (ui_loop_hook != NULL) |
657 | detach = ui_loop_hook (0); | |
658 | ||
659 | if (detach) | |
660 | child_kill_inferior (); | |
661 | } | |
24e60978 SC |
662 | } |
663 | } | |
664 | ||
24e60978 SC |
665 | /* Attach to process PID, then initialize for debugging it. */ |
666 | ||
667 | static void | |
668 | child_attach (args, from_tty) | |
669 | char *args; | |
670 | int from_tty; | |
671 | { | |
672 | BOOL ok; | |
673 | ||
674 | if (!args) | |
675 | error_no_arg ("process-id to attach"); | |
676 | ||
3cee93ac | 677 | current_event.dwProcessId = strtoul (args, 0, 0); |
24e60978 | 678 | |
3cee93ac | 679 | ok = DebugActiveProcess (current_event.dwProcessId); |
24e60978 SC |
680 | |
681 | if (!ok) | |
682 | error ("Can't attach to process."); | |
683 | ||
24e60978 SC |
684 | exception_count = 0; |
685 | event_count = 0; | |
686 | ||
687 | if (from_tty) | |
688 | { | |
689 | char *exec_file = (char *) get_exec_file (0); | |
690 | ||
691 | if (exec_file) | |
692 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
3cee93ac | 693 | target_pid_to_str (current_event.dwProcessId)); |
24e60978 SC |
694 | else |
695 | printf_unfiltered ("Attaching to %s\n", | |
3cee93ac | 696 | target_pid_to_str (current_event.dwProcessId)); |
24e60978 SC |
697 | |
698 | gdb_flush (gdb_stdout); | |
699 | } | |
700 | ||
24e60978 SC |
701 | push_target (&child_ops); |
702 | } | |
703 | ||
24e60978 SC |
704 | static void |
705 | child_detach (args, from_tty) | |
706 | char *args; | |
707 | int from_tty; | |
708 | { | |
709 | if (from_tty) | |
710 | { | |
711 | char *exec_file = get_exec_file (0); | |
712 | if (exec_file == 0) | |
713 | exec_file = ""; | |
714 | printf_unfiltered ("Detaching from program: %s %s\n", exec_file, | |
715 | target_pid_to_str (inferior_pid)); | |
716 | gdb_flush (gdb_stdout); | |
717 | } | |
718 | inferior_pid = 0; | |
719 | unpush_target (&child_ops); | |
720 | } | |
721 | ||
24e60978 SC |
722 | /* Print status information about what we're accessing. */ |
723 | ||
724 | static void | |
725 | child_files_info (ignore) | |
726 | struct target_ops *ignore; | |
727 | { | |
728 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
729 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid)); | |
730 | } | |
731 | ||
732 | /* ARGSUSED */ | |
733 | static void | |
734 | child_open (arg, from_tty) | |
735 | char *arg; | |
736 | int from_tty; | |
737 | { | |
738 | error ("Use the \"run\" command to start a Unix child process."); | |
739 | } | |
740 | ||
eb708f2e | 741 | /* Start an inferior win32 child process and sets inferior_pid to its pid. |
24e60978 SC |
742 | EXEC_FILE is the file to run. |
743 | ALLARGS is a string containing the arguments to the program. | |
744 | ENV is the environment vector to pass. Errors reported with error(). */ | |
745 | ||
24e60978 SC |
746 | static void |
747 | child_create_inferior (exec_file, allargs, env) | |
748 | char *exec_file; | |
749 | char *allargs; | |
750 | char **env; | |
751 | { | |
1750a5ef SC |
752 | char real_path[MAXPATHLEN]; |
753 | char *winenv; | |
754 | char *temp; | |
3a4b77d8 | 755 | int envlen; |
1750a5ef SC |
756 | int i; |
757 | ||
24e60978 SC |
758 | STARTUPINFO si; |
759 | PROCESS_INFORMATION pi; | |
760 | struct target_waitstatus dummy; | |
761 | BOOL ret; | |
762 | DWORD flags; | |
eb708f2e | 763 | char *args; |
24e60978 SC |
764 | |
765 | if (!exec_file) | |
766 | { | |
767 | error ("No executable specified, use `target exec'.\n"); | |
768 | } | |
769 | ||
770 | memset (&si, 0, sizeof (si)); | |
771 | si.cb = sizeof (si); | |
772 | ||
1a443730 | 773 | cygwin32_conv_to_win32_path (exec_file, real_path); |
24e60978 | 774 | |
3cee93ac | 775 | flags = DEBUG_ONLY_THIS_PROCESS; |
24e60978 SC |
776 | |
777 | if (new_group) | |
778 | flags |= CREATE_NEW_PROCESS_GROUP; | |
779 | ||
780 | if (new_console) | |
781 | flags |= CREATE_NEW_CONSOLE; | |
782 | ||
3d78f532 SC |
783 | args = alloca (strlen (real_path) + strlen (allargs) + 2); |
784 | ||
785 | strcpy (args, real_path); | |
eb708f2e | 786 | |
eb708f2e SC |
787 | strcat (args, " "); |
788 | strcat (args, allargs); | |
789 | ||
e88c49c3 DE |
790 | /* Prepare the environment vars for CreateProcess. */ |
791 | { | |
792 | /* This code use to assume all env vars were file names and would | |
793 | translate them all to win32 style. That obviously doesn't work in the | |
2dcfc9c7 DE |
794 | general case. The current rule is that we only translate PATH. |
795 | We need to handle PATH because we're about to call CreateProcess and | |
796 | it uses PATH to find DLL's. Fortunately PATH has a well-defined value | |
797 | in both posix and win32 environments. cygwin.dll will change it back | |
798 | to posix style if necessary. */ | |
e88c49c3 DE |
799 | |
800 | static const char *conv_path_names[] = | |
3a4b77d8 JM |
801 | { |
802 | "PATH=", | |
803 | 0 | |
804 | }; | |
e88c49c3 DE |
805 | |
806 | /* CreateProcess takes the environment list as a null terminated set of | |
807 | strings (i.e. two nulls terminate the list). */ | |
808 | ||
809 | /* Get total size for env strings. */ | |
810 | for (envlen = 0, i = 0; env[i] && *env[i]; i++) | |
811 | { | |
2dcfc9c7 | 812 | int j, len; |
e88c49c3 | 813 | |
2dcfc9c7 DE |
814 | for (j = 0; conv_path_names[j]; j++) |
815 | { | |
816 | len = strlen (conv_path_names[j]); | |
817 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 818 | { |
1a443730 | 819 | if (cygwin32_posix_path_list_p (env[i] + len)) |
2dcfc9c7 | 820 | envlen += len |
1a443730 | 821 | + cygwin32_posix_to_win32_path_list_buf_size (env[i] + len); |
2dcfc9c7 DE |
822 | else |
823 | envlen += strlen (env[i]) + 1; | |
824 | break; | |
e88c49c3 | 825 | } |
e88c49c3 | 826 | } |
2dcfc9c7 | 827 | if (conv_path_names[j] == NULL) |
e88c49c3 DE |
828 | envlen += strlen (env[i]) + 1; |
829 | } | |
830 | ||
831 | winenv = alloca (envlen + 1); | |
832 | ||
833 | /* Copy env strings into new buffer. */ | |
3cee93ac | 834 | for (temp = winenv, i = 0; env[i] && *env[i]; i++) |
e88c49c3 | 835 | { |
2dcfc9c7 | 836 | int j, len; |
e88c49c3 | 837 | |
2dcfc9c7 DE |
838 | for (j = 0; conv_path_names[j]; j++) |
839 | { | |
840 | len = strlen (conv_path_names[j]); | |
841 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 842 | { |
1a443730 | 843 | if (cygwin32_posix_path_list_p (env[i] + len)) |
e88c49c3 DE |
844 | { |
845 | memcpy (temp, env[i], len); | |
1a443730 | 846 | cygwin32_posix_to_win32_path_list (env[i] + len, temp + len); |
e88c49c3 | 847 | } |
2dcfc9c7 DE |
848 | else |
849 | strcpy (temp, env[i]); | |
850 | break; | |
e88c49c3 | 851 | } |
e88c49c3 | 852 | } |
2dcfc9c7 | 853 | if (conv_path_names[j] == NULL) |
e88c49c3 | 854 | strcpy (temp, env[i]); |
2dcfc9c7 | 855 | |
e88c49c3 DE |
856 | temp += strlen (temp) + 1; |
857 | } | |
858 | ||
859 | /* Final nil string to terminate new env. */ | |
860 | *temp = 0; | |
861 | } | |
1750a5ef | 862 | |
1750a5ef | 863 | ret = CreateProcess (0, |
3a4b77d8 | 864 | args, /* command line */ |
24e60978 SC |
865 | NULL, /* Security */ |
866 | NULL, /* thread */ | |
867 | TRUE, /* inherit handles */ | |
868 | flags, /* start flags */ | |
1750a5ef | 869 | winenv, |
24e60978 SC |
870 | NULL, /* current directory */ |
871 | &si, | |
872 | &pi); | |
873 | if (!ret) | |
3a4b77d8 | 874 | error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ()); |
24e60978 SC |
875 | |
876 | exception_count = 0; | |
877 | event_count = 0; | |
878 | ||
3cee93ac CF |
879 | current_process_handle = pi.hProcess; |
880 | current_event.dwProcessId = pi.dwProcessId; | |
881 | memset (¤t_event, 0, sizeof (current_event)); | |
882 | inferior_pid = current_event.dwThreadId = pi.dwThreadId; | |
24e60978 | 883 | push_target (&child_ops); |
3cee93ac | 884 | child_init_thread_list (); |
24e60978 SC |
885 | init_wait_for_inferior (); |
886 | clear_proceed_status (); | |
887 | target_terminal_init (); | |
888 | target_terminal_inferior (); | |
889 | ||
890 | /* Ignore the first trap */ | |
891 | child_wait (inferior_pid, &dummy); | |
892 | ||
3e9c4287 | 893 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); |
24e60978 SC |
894 | } |
895 | ||
896 | static void | |
897 | child_mourn_inferior () | |
898 | { | |
3cee93ac | 899 | (void) child_continue (DBG_CONTINUE, -1); |
24e60978 SC |
900 | unpush_target (&child_ops); |
901 | generic_mourn_inferior (); | |
902 | } | |
903 | ||
24e60978 SC |
904 | /* Send a SIGINT to the process group. This acts just like the user typed a |
905 | ^C on the controlling terminal. */ | |
906 | ||
b607efe7 | 907 | static void |
24e60978 SC |
908 | child_stop () |
909 | { | |
1ef980b9 | 910 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
24e60978 | 911 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, 0)); |
3a4b77d8 | 912 | registers_changed (); /* refresh register state */ |
24e60978 SC |
913 | } |
914 | ||
915 | int | |
eb708f2e SC |
916 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, |
917 | int write, struct target_ops *target) | |
24e60978 SC |
918 | { |
919 | DWORD done; | |
920 | if (write) | |
921 | { | |
1ef980b9 SC |
922 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08x\n", |
923 | len, memaddr)); | |
3cee93ac CF |
924 | WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our, |
925 | len, &done); | |
926 | FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len); | |
24e60978 SC |
927 | } |
928 | else | |
929 | { | |
1ef980b9 SC |
930 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08x\n", |
931 | len, memaddr)); | |
3cee93ac CF |
932 | ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, len, |
933 | &done); | |
24e60978 SC |
934 | } |
935 | return done; | |
936 | } | |
937 | ||
938 | void | |
939 | child_kill_inferior (void) | |
940 | { | |
3cee93ac CF |
941 | CHECK (TerminateProcess (current_process_handle, 0)); |
942 | ||
b5edcb45 ILT |
943 | for (;;) |
944 | { | |
3cee93ac | 945 | if (!child_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 946 | break; |
3cee93ac | 947 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 948 | break; |
3cee93ac | 949 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
950 | break; |
951 | } | |
952 | ||
3cee93ac CF |
953 | CHECK (CloseHandle (current_process_handle)); |
954 | ||
955 | /* this may fail in an attached process so don't check. */ | |
956 | (void) CloseHandle (current_thread->h); | |
3a4b77d8 | 957 | target_mourn_inferior (); /* or just child_mourn_inferior? */ |
24e60978 SC |
958 | } |
959 | ||
960 | void | |
3cee93ac | 961 | child_resume (int pid, int step, enum target_signal sig) |
24e60978 | 962 | { |
3cee93ac CF |
963 | int i; |
964 | thread_info *th; | |
965 | DWORD continue_status = last_sig > 0 && last_sig < NSIG ? | |
3a4b77d8 | 966 | DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE; |
24e60978 | 967 | |
3cee93ac CF |
968 | DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n", |
969 | pid, step, sig)); | |
970 | ||
971 | /* Get context for currently selected thread */ | |
972 | th = thread_rec (current_event.dwThreadId, FALSE); | |
24e60978 SC |
973 | if (step) |
974 | { | |
1ef980b9 | 975 | #ifdef i386 |
24e60978 SC |
976 | /* Single step by setting t bit */ |
977 | child_fetch_inferior_registers (PS_REGNUM); | |
3cee93ac | 978 | th->context.EFlags |= FLAG_TRACE_BIT; |
454ffae5 | 979 | #endif |
24e60978 SC |
980 | } |
981 | ||
3cee93ac | 982 | if (th->context.ContextFlags) |
24e60978 | 983 | { |
3cee93ac CF |
984 | CHECK (SetThreadContext (th->h, &th->context)); |
985 | th->context.ContextFlags = 0; | |
24e60978 SC |
986 | } |
987 | ||
3cee93ac CF |
988 | /* Allow continuing with the same signal that interrupted us. |
989 | Otherwise complain. */ | |
990 | if (sig && sig != last_sig) | |
991 | fprintf_unfiltered (gdb_stderr, "Can't send signals to the child. signal %d\n", sig); | |
24e60978 | 992 | |
3cee93ac CF |
993 | last_sig = 0; |
994 | child_continue (continue_status, pid); | |
24e60978 SC |
995 | } |
996 | ||
997 | static void | |
998 | child_prepare_to_store () | |
999 | { | |
1000 | /* Do nothing, since we can store individual regs */ | |
1001 | } | |
1002 | ||
1003 | static int | |
1004 | child_can_run () | |
1005 | { | |
1006 | return 1; | |
1007 | } | |
1008 | ||
1009 | static void | |
1010 | child_close () | |
1011 | { | |
1ef980b9 | 1012 | DEBUG_EVENTS (("gdb: child_close, inferior_pid=%d\n", inferior_pid)); |
24e60978 | 1013 | } |
1ef980b9 | 1014 | |
3a4b77d8 | 1015 | struct target_ops child_ops; |
c719b714 | 1016 | |
3a4b77d8 JM |
1017 | static void |
1018 | init_child_ops (void) | |
24e60978 | 1019 | { |
3a4b77d8 JM |
1020 | child_ops.to_shortname = "child"; |
1021 | child_ops.to_longname = "Win32 child process"; | |
1022 | child_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
1023 | child_ops.to_open = child_open; | |
1024 | child_ops.to_close = child_close; | |
1025 | child_ops.to_attach = child_attach; | |
1026 | child_ops.to_detach = child_detach; | |
1027 | child_ops.to_resume = child_resume; | |
1028 | child_ops.to_wait = child_wait; | |
1029 | child_ops.to_fetch_registers = child_fetch_inferior_registers; | |
1030 | child_ops.to_store_registers = child_store_inferior_registers; | |
1031 | child_ops.to_prepare_to_store = child_prepare_to_store; | |
1032 | child_ops.to_xfer_memory = child_xfer_memory; | |
1033 | child_ops.to_files_info = child_files_info; | |
1034 | child_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
1035 | child_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
1036 | child_ops.to_terminal_init = terminal_init_inferior; | |
1037 | child_ops.to_terminal_inferior = terminal_inferior; | |
1038 | child_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
1039 | child_ops.to_terminal_ours = terminal_ours; | |
1040 | child_ops.to_terminal_info = child_terminal_info; | |
1041 | child_ops.to_kill = child_kill_inferior; | |
1042 | child_ops.to_load = 0; | |
1043 | child_ops.to_lookup_symbol = 0; | |
1044 | child_ops.to_create_inferior = child_create_inferior; | |
1045 | child_ops.to_mourn_inferior = child_mourn_inferior; | |
1046 | child_ops.to_can_run = child_can_run; | |
1047 | child_ops.to_notice_signals = 0; | |
1048 | child_ops.to_thread_alive = win32_child_thread_alive; | |
1049 | child_ops.to_stop = child_stop; | |
1050 | child_ops.to_stratum = process_stratum; | |
1051 | child_ops.DONT_USE = 0; | |
1052 | child_ops.to_has_all_memory = 1; | |
1053 | child_ops.to_has_memory = 1; | |
1054 | child_ops.to_has_stack = 1; | |
1055 | child_ops.to_has_registers = 1; | |
1056 | child_ops.to_has_execution = 1; | |
1057 | child_ops.to_sections = 0; | |
1058 | child_ops.to_sections_end = 0; | |
1059 | child_ops.to_magic = OPS_MAGIC; | |
c719b714 | 1060 | } |
24e60978 SC |
1061 | |
1062 | void | |
1063 | _initialize_inftarg () | |
1064 | { | |
1ef980b9 | 1065 | struct cmd_list_element *c; |
3a4b77d8 | 1066 | init_child_ops (); |
1ef980b9 | 1067 | |
24e60978 SC |
1068 | add_show_from_set |
1069 | (add_set_cmd ("new-console", class_support, var_boolean, | |
1070 | (char *) &new_console, | |
1071 | "Set creation of new console when creating child process.", | |
1072 | &setlist), | |
1073 | &showlist); | |
1074 | ||
1075 | add_show_from_set | |
1076 | (add_set_cmd ("new-group", class_support, var_boolean, | |
1077 | (char *) &new_group, | |
1078 | "Set creation of new group when creating child process.", | |
1079 | &setlist), | |
1080 | &showlist); | |
1081 | ||
1ef980b9 SC |
1082 | add_show_from_set |
1083 | (add_set_cmd ("debugexec", class_support, var_boolean, | |
1084 | (char *) &debug_exec, | |
1085 | "Set whether to display execution in child process.", | |
1086 | &setlist), | |
1087 | &showlist); | |
1088 | ||
1089 | add_show_from_set | |
1090 | (add_set_cmd ("debugevents", class_support, var_boolean, | |
1091 | (char *) &debug_events, | |
1092 | "Set whether to display kernel events in child process.", | |
1093 | &setlist), | |
1094 | &showlist); | |
1095 | ||
1096 | add_show_from_set | |
1097 | (add_set_cmd ("debugmemory", class_support, var_boolean, | |
1098 | (char *) &debug_memory, | |
1099 | "Set whether to display memory accesses in child process.", | |
1100 | &setlist), | |
1101 | &showlist); | |
1102 | ||
1103 | add_show_from_set | |
1104 | (add_set_cmd ("debugexceptions", class_support, var_boolean, | |
1105 | (char *) &debug_exceptions, | |
3a4b77d8 | 1106 | "Set whether to display kernel exceptions in child process.", |
1ef980b9 SC |
1107 | &setlist), |
1108 | &showlist); | |
1109 | ||
24e60978 SC |
1110 | add_target (&child_ops); |
1111 | } | |
3cee93ac CF |
1112 | |
1113 | /* Determine if the thread referenced by "pid" is alive | |
1114 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 | |
1115 | it means that the pid has died. Otherwise it is assumed to be alive. */ | |
1116 | static int | |
bc8bd256 | 1117 | win32_child_thread_alive (int pid) |
3cee93ac | 1118 | { |
3a4b77d8 JM |
1119 | return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
1120 | FALSE : TRUE; | |
3cee93ac CF |
1121 | } |
1122 | ||
1123 | /* Convert pid to printable format. */ | |
1124 | char * | |
1125 | cygwin_pid_to_str (int pid) | |
1126 | { | |
1127 | static char buf[80]; | |
1128 | if (pid == current_event.dwProcessId) | |
1129 | sprintf (buf, "process %d", pid); | |
1130 | else | |
1131 | sprintf (buf, "thread %d.0x%x", current_event.dwProcessId, pid); | |
1132 | return buf; | |
1133 | } |