Commit | Line | Data |
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24e60978 | 1 | /* Target-vector operations for controlling win32 child processes, for GDB. |
b6ba6518 KB |
2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
3 | Free Software Foundation, Inc. | |
e6433c28 | 4 | Contributed by Cygnus Solutions, A Red Hat Company. |
e88c49c3 | 5 | |
24e60978 SC |
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 | |
10 | the Free Software Foundation; either version 2 of the License, or | |
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 eve nthe 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 | |
19 | along with this program; if not, write to the Free Software | |
3a4b77d8 | 20 | Foundation, Inc., 59 Temple Place - Suite 330, |
4e052eda | 21 | Boston, MA 02111-1307, USA. */ |
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" | |
24e60978 SC |
31 | #include "gdbcore.h" |
32 | #include "command.h" | |
fa58ee11 | 33 | #include "completer.h" |
4e052eda | 34 | #include "regcache.h" |
24e60978 SC |
35 | #include <signal.h> |
36 | #include <sys/types.h> | |
37 | #include <fcntl.h> | |
cad9cd60 | 38 | #include <stdlib.h> |
cad9cd60 | 39 | #include <windows.h> |
1e37c281 | 40 | #include <imagehlp.h> |
29fe111d | 41 | #include <sys/cygwin.h> |
cad9cd60 | 42 | |
24e60978 | 43 | #include "buildsym.h" |
1ef980b9 SC |
44 | #include "symfile.h" |
45 | #include "objfiles.h" | |
24e60978 | 46 | #include "gdb_string.h" |
fdfa3315 | 47 | #include "gdbthread.h" |
24e60978 | 48 | #include "gdbcmd.h" |
1750a5ef | 49 | #include <sys/param.h> |
1e37c281 | 50 | #include <unistd.h> |
24e60978 | 51 | |
0714f9bf | 52 | /* The ui's event loop. */ |
507f3c78 | 53 | extern int (*ui_loop_hook) (int signo); |
0714f9bf SS |
54 | |
55 | /* If we're not using the old Cygwin header file set, define the | |
56 | following which never should have been in the generic Win32 API | |
57 | headers in the first place since they were our own invention... */ | |
58 | #ifndef _GNU_H_WINDOWS_H | |
9d3789f7 | 59 | enum |
8e860359 CF |
60 | { |
61 | FLAG_TRACE_BIT = 0x100, | |
62 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
63 | }; | |
0714f9bf | 64 | #endif |
8e860359 CF |
65 | #include <sys/procfs.h> |
66 | #include <psapi.h> | |
0714f9bf | 67 | |
3cee93ac CF |
68 | /* The string sent by cygwin when it processes a signal. |
69 | FIXME: This should be in a cygwin include file. */ | |
70 | #define CYGWIN_SIGNAL_STRING "cygwin: signal" | |
71 | ||
29fe111d | 72 | #define CHECK(x) check (x, __FILE__,__LINE__) |
1ef980b9 SC |
73 | #define DEBUG_EXEC(x) if (debug_exec) printf x |
74 | #define DEBUG_EVENTS(x) if (debug_events) printf x | |
75 | #define DEBUG_MEM(x) if (debug_memory) printf x | |
76 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf x | |
24e60978 SC |
77 | |
78 | /* Forward declaration */ | |
79 | extern struct target_ops child_ops; | |
80 | ||
a14ed312 | 81 | static void child_stop (void); |
39f77062 | 82 | static int win32_child_thread_alive (ptid_t); |
a14ed312 | 83 | void child_kill_inferior (void); |
3cee93ac | 84 | |
8a892701 CF |
85 | static int last_sig = 0; /* Set if a signal was received from the |
86 | debugged process */ | |
3cee93ac CF |
87 | /* Thread information structure used to track information that is |
88 | not available in gdb's thread structure. */ | |
89 | typedef struct thread_info_struct | |
3a4b77d8 JM |
90 | { |
91 | struct thread_info_struct *next; | |
92 | DWORD id; | |
93 | HANDLE h; | |
94 | char *name; | |
95 | int suspend_count; | |
96 | CONTEXT context; | |
1e37c281 | 97 | STACKFRAME sf; |
8e860359 CF |
98 | } |
99 | thread_info; | |
1e37c281 | 100 | |
29fe111d | 101 | static thread_info thread_head; |
24e60978 | 102 | |
24e60978 SC |
103 | /* The process and thread handles for the above context. */ |
104 | ||
3cee93ac CF |
105 | static DEBUG_EVENT current_event; /* The current debug event from |
106 | WaitForDebugEvent */ | |
107 | static HANDLE current_process_handle; /* Currently executing process */ | |
108 | static thread_info *current_thread; /* Info on currently selected thread */ | |
3a4b77d8 | 109 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 SC |
110 | |
111 | /* Counts of things. */ | |
112 | static int exception_count = 0; | |
113 | static int event_count = 0; | |
114 | ||
115 | /* User options. */ | |
116 | static int new_console = 0; | |
1e37c281 | 117 | static int new_group = 1; |
3a4b77d8 JM |
118 | static int debug_exec = 0; /* show execution */ |
119 | static int debug_events = 0; /* show events from kernel */ | |
120 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 121 | static int debug_exceptions = 0; /* show target exceptions */ |
24e60978 SC |
122 | |
123 | /* This vector maps GDB's idea of a register's number into an address | |
3cee93ac | 124 | in the win32 exception context vector. |
24e60978 | 125 | |
3cee93ac | 126 | It also contains the bit mask needed to load the register in question. |
24e60978 SC |
127 | |
128 | One day we could read a reg, we could inspect the context we | |
129 | already have loaded, if it doesn't have the bit set that we need, | |
130 | we read that set of registers in using GetThreadContext. If the | |
131 | context already contains what we need, we just unpack it. Then to | |
132 | write a register, first we have to ensure that the context contains | |
133 | the other regs of the group, and then we copy the info in and set | |
134 | out bit. */ | |
135 | ||
3cee93ac CF |
136 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) |
137 | static const int mappings[] = | |
24e60978 | 138 | { |
3a4b77d8 JM |
139 | context_offset (Eax), |
140 | context_offset (Ecx), | |
141 | context_offset (Edx), | |
142 | context_offset (Ebx), | |
143 | context_offset (Esp), | |
144 | context_offset (Ebp), | |
145 | context_offset (Esi), | |
146 | context_offset (Edi), | |
147 | context_offset (Eip), | |
148 | context_offset (EFlags), | |
149 | context_offset (SegCs), | |
150 | context_offset (SegSs), | |
151 | context_offset (SegDs), | |
152 | context_offset (SegEs), | |
153 | context_offset (SegFs), | |
154 | context_offset (SegGs), | |
155 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
156 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
157 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
158 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
159 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
160 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
161 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
162 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
1e37c281 JM |
163 | context_offset (FloatSave.ControlWord), |
164 | context_offset (FloatSave.StatusWord), | |
165 | context_offset (FloatSave.TagWord), | |
166 | context_offset (FloatSave.ErrorSelector), | |
167 | context_offset (FloatSave.ErrorOffset), | |
168 | context_offset (FloatSave.DataSelector), | |
169 | context_offset (FloatSave.DataOffset), | |
d3a09475 | 170 | context_offset (FloatSave.ErrorSelector) |
24e60978 SC |
171 | }; |
172 | ||
d3a09475 JM |
173 | #undef context_offset |
174 | ||
24e60978 SC |
175 | /* This vector maps the target's idea of an exception (extracted |
176 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
177 | ||
178 | struct xlate_exception | |
179 | { | |
180 | int them; | |
181 | enum target_signal us; | |
182 | }; | |
183 | ||
24e60978 SC |
184 | static const struct xlate_exception |
185 | xlate[] = | |
186 | { | |
187 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 188 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
189 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
190 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
191 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
192 | {-1, -1}}; | |
193 | ||
3cee93ac CF |
194 | /* Find a thread record given a thread id. |
195 | If get_context then also retrieve the context for this | |
196 | thread. */ | |
197 | static thread_info * | |
198 | thread_rec (DWORD id, int get_context) | |
24e60978 | 199 | { |
3cee93ac CF |
200 | thread_info *th; |
201 | ||
3a4b77d8 | 202 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
203 | if (th->id == id) |
204 | { | |
205 | if (!th->suspend_count && get_context) | |
206 | { | |
8a892701 | 207 | if (get_context > 0 && id != current_event.dwThreadId) |
3cee93ac CF |
208 | th->suspend_count = SuspendThread (th->h) + 1; |
209 | else if (get_context < 0) | |
210 | th->suspend_count = -1; | |
211 | ||
212 | th->context.ContextFlags = CONTEXT_DEBUGGER; | |
213 | GetThreadContext (th->h, &th->context); | |
214 | } | |
215 | return th; | |
216 | } | |
217 | ||
218 | return NULL; | |
219 | } | |
220 | ||
221 | /* Add a thread to the thread list */ | |
222 | static thread_info * | |
3a4b77d8 | 223 | child_add_thread (DWORD id, HANDLE h) |
3cee93ac CF |
224 | { |
225 | thread_info *th; | |
226 | ||
227 | if ((th = thread_rec (id, FALSE))) | |
228 | return th; | |
229 | ||
230 | th = (thread_info *) xmalloc (sizeof (*th)); | |
3a4b77d8 | 231 | memset (th, 0, sizeof (*th)); |
3cee93ac CF |
232 | th->id = id; |
233 | th->h = h; | |
234 | th->next = thread_head.next; | |
235 | thread_head.next = th; | |
39f77062 | 236 | add_thread (pid_to_ptid (id)); |
3cee93ac | 237 | return th; |
24e60978 SC |
238 | } |
239 | ||
3cee93ac CF |
240 | /* Clear out any old thread list and reintialize it to a |
241 | pristine state. */ | |
24e60978 | 242 | static void |
fba45db2 | 243 | child_init_thread_list (void) |
24e60978 | 244 | { |
3cee93ac CF |
245 | thread_info *th = &thread_head; |
246 | ||
247 | DEBUG_EVENTS (("gdb: child_init_thread_list\n")); | |
248 | init_thread_list (); | |
249 | while (th->next != NULL) | |
24e60978 | 250 | { |
3cee93ac CF |
251 | thread_info *here = th->next; |
252 | th->next = here->next; | |
253 | (void) CloseHandle (here->h); | |
b8c9b27d | 254 | xfree (here); |
24e60978 | 255 | } |
3cee93ac CF |
256 | } |
257 | ||
258 | /* Delete a thread from the list of threads */ | |
259 | static void | |
260 | child_delete_thread (DWORD id) | |
261 | { | |
262 | thread_info *th; | |
263 | ||
264 | if (info_verbose) | |
39f77062 KB |
265 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id))); |
266 | delete_thread (pid_to_ptid (id)); | |
3cee93ac CF |
267 | |
268 | for (th = &thread_head; | |
269 | th->next != NULL && th->next->id != id; | |
270 | th = th->next) | |
271 | continue; | |
272 | ||
273 | if (th->next != NULL) | |
24e60978 | 274 | { |
3cee93ac CF |
275 | thread_info *here = th->next; |
276 | th->next = here->next; | |
277 | CloseHandle (here->h); | |
b8c9b27d | 278 | xfree (here); |
24e60978 SC |
279 | } |
280 | } | |
281 | ||
282 | static void | |
3cee93ac CF |
283 | check (BOOL ok, const char *file, int line) |
284 | { | |
285 | if (!ok) | |
29fe111d | 286 | printf_filtered ("error return %s:%d was %lu\n", file, line, GetLastError ()); |
3cee93ac CF |
287 | } |
288 | ||
289 | static void | |
290 | do_child_fetch_inferior_registers (int r) | |
24e60978 | 291 | { |
1e37c281 JM |
292 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
293 | long l; | |
294 | if (r == FCS_REGNUM) | |
295 | { | |
8e860359 | 296 | l = *((long *) context_offset) & 0xffff; |
1e37c281 JM |
297 | supply_register (r, (char *) &l); |
298 | } | |
299 | else if (r == FOP_REGNUM) | |
300 | { | |
8e860359 | 301 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
1e37c281 JM |
302 | supply_register (r, (char *) &l); |
303 | } | |
304 | else if (r >= 0) | |
d3a09475 | 305 | supply_register (r, context_offset); |
3cee93ac | 306 | else |
24e60978 SC |
307 | { |
308 | for (r = 0; r < NUM_REGS; r++) | |
3cee93ac | 309 | do_child_fetch_inferior_registers (r); |
24e60978 | 310 | } |
3cee93ac CF |
311 | } |
312 | ||
313 | static void | |
314 | child_fetch_inferior_registers (int r) | |
315 | { | |
39f77062 | 316 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
3cee93ac CF |
317 | do_child_fetch_inferior_registers (r); |
318 | } | |
319 | ||
320 | static void | |
321 | do_child_store_inferior_registers (int r) | |
322 | { | |
323 | if (r >= 0) | |
324 | read_register_gen (r, ((char *) ¤t_thread->context) + mappings[r]); | |
24e60978 SC |
325 | else |
326 | { | |
3cee93ac CF |
327 | for (r = 0; r < NUM_REGS; r++) |
328 | do_child_store_inferior_registers (r); | |
24e60978 SC |
329 | } |
330 | } | |
331 | ||
3cee93ac CF |
332 | /* Store a new register value into the current thread context */ |
333 | static void | |
334 | child_store_inferior_registers (int r) | |
335 | { | |
39f77062 | 336 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
3cee93ac CF |
337 | do_child_store_inferior_registers (r); |
338 | } | |
24e60978 | 339 | |
1e37c281 JM |
340 | static int psapi_loaded = 0; |
341 | static HMODULE psapi_module_handle = NULL; | |
8e860359 CF |
342 | static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, LPDWORD) = NULL; |
343 | static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD) = NULL; | |
344 | static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD) = NULL; | |
1e37c281 | 345 | |
8e860359 CF |
346 | int |
347 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) | |
1e37c281 JM |
348 | { |
349 | DWORD len; | |
350 | MODULEINFO mi; | |
351 | int i; | |
8e860359 CF |
352 | HMODULE dh_buf[1]; |
353 | HMODULE *DllHandle = dh_buf; | |
1e37c281 JM |
354 | DWORD cbNeeded; |
355 | BOOL ok; | |
356 | ||
357 | if (!psapi_loaded || | |
8e860359 CF |
358 | psapi_EnumProcessModules == NULL || |
359 | psapi_GetModuleInformation == NULL || | |
360 | psapi_GetModuleFileNameExA == NULL) | |
1e37c281 | 361 | { |
8e860359 CF |
362 | if (psapi_loaded) |
363 | goto failed; | |
1e37c281 JM |
364 | psapi_loaded = 1; |
365 | psapi_module_handle = LoadLibrary ("psapi.dll"); | |
366 | if (!psapi_module_handle) | |
8e860359 CF |
367 | { |
368 | /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */ | |
369 | goto failed; | |
370 | } | |
371 | psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules"); | |
1e37c281 JM |
372 | psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation"); |
373 | psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, | |
8e860359 CF |
374 | "GetModuleFileNameExA"); |
375 | if (psapi_EnumProcessModules == NULL || | |
376 | psapi_GetModuleInformation == NULL || | |
377 | psapi_GetModuleFileNameExA == NULL) | |
1e37c281 JM |
378 | goto failed; |
379 | } | |
380 | ||
381 | cbNeeded = 0; | |
382 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
383 | DllHandle, |
384 | sizeof (HMODULE), | |
385 | &cbNeeded); | |
1e37c281 JM |
386 | |
387 | if (!ok || !cbNeeded) | |
388 | goto failed; | |
389 | ||
8e860359 | 390 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
391 | if (!DllHandle) |
392 | goto failed; | |
393 | ||
394 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
395 | DllHandle, |
396 | cbNeeded, | |
397 | &cbNeeded); | |
1e37c281 JM |
398 | if (!ok) |
399 | goto failed; | |
400 | ||
29fe111d | 401 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 JM |
402 | { |
403 | if (!(*psapi_GetModuleInformation) (current_process_handle, | |
8e860359 CF |
404 | DllHandle[i], |
405 | &mi, | |
406 | sizeof (mi))) | |
1e37c281 JM |
407 | error ("Can't get module info"); |
408 | ||
409 | len = (*psapi_GetModuleFileNameExA) (current_process_handle, | |
8e860359 CF |
410 | DllHandle[i], |
411 | dll_name_ret, | |
412 | MAX_PATH); | |
1e37c281 | 413 | if (len == 0) |
29fe111d | 414 | error ("Error getting dll name: %u\n", GetLastError ()); |
1e37c281 JM |
415 | |
416 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
417 | return 1; | |
418 | } | |
419 | ||
420 | failed: | |
421 | dll_name_ret[0] = '\0'; | |
422 | return 0; | |
423 | } | |
424 | ||
450005e7 CF |
425 | /* Encapsulate the information required in a call to |
426 | symbol_file_add_args */ | |
8a892701 CF |
427 | struct safe_symbol_file_add_args |
428 | { | |
429 | char *name; | |
430 | int from_tty; | |
431 | struct section_addr_info *addrs; | |
432 | int mainline; | |
433 | int flags; | |
7c5c87c0 | 434 | struct ui_file *err, *out; |
8a892701 CF |
435 | struct objfile *ret; |
436 | }; | |
437 | ||
02e423b9 CF |
438 | /* Maintain a linked list of "so" information. */ |
439 | struct so_stuff | |
440 | { | |
441 | struct so_stuff *next, **last; | |
442 | DWORD load_addr; | |
7470a420 CF |
443 | int loaded; |
444 | char name[1]; | |
445 | } solib_start, *solib_end; | |
02e423b9 | 446 | |
450005e7 CF |
447 | /* Call symbol_file_add with stderr redirected. We don't care if there |
448 | are errors. */ | |
8a892701 CF |
449 | static int |
450 | safe_symbol_file_add_stub (void *argv) | |
451 | { | |
452 | #define p ((struct safe_symbol_file_add_args *)argv) | |
fefd0a37 | 453 | struct so_stuff *so = &solib_start; |
02e423b9 CF |
454 | |
455 | while ((so = so->next)) | |
7470a420 | 456 | if (so->loaded && strcasecmp (so->name, p->name) == 0) |
02e423b9 | 457 | return 0; |
8a892701 CF |
458 | p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags); |
459 | return !!p->ret; | |
460 | #undef p | |
461 | } | |
462 | ||
450005e7 | 463 | /* Restore gdb's stderr after calling symbol_file_add */ |
8a892701 | 464 | static void |
7c5c87c0 | 465 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 466 | { |
8e860359 | 467 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 468 | gdb_flush (gdb_stderr); |
7c5c87c0 | 469 | gdb_flush (gdb_stdout); |
02e423b9 | 470 | /* ui_file_delete (gdb_stderr); */ |
7c5c87c0 | 471 | ui_file_delete (gdb_stdout); |
02e423b9 | 472 | /* gdb_stderr = sp->err; */ |
9d3789f7 | 473 | gdb_stdout = sp->out; |
8e860359 | 474 | #undef sp |
8a892701 CF |
475 | } |
476 | ||
450005e7 | 477 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
478 | static struct objfile * |
479 | safe_symbol_file_add (char *name, int from_tty, | |
480 | struct section_addr_info *addrs, | |
481 | int mainline, int flags) | |
8a892701 CF |
482 | { |
483 | struct safe_symbol_file_add_args p; | |
484 | struct cleanup *cleanup; | |
485 | ||
7c5c87c0 | 486 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 487 | |
7c5c87c0 CF |
488 | p.err = gdb_stderr; |
489 | p.out = gdb_stdout; | |
450005e7 | 490 | gdb_flush (gdb_stderr); |
7c5c87c0 | 491 | gdb_flush (gdb_stdout); |
02e423b9 | 492 | /* gdb_stderr = ui_file_new (); */ |
7c5c87c0 | 493 | gdb_stdout = ui_file_new (); |
8a892701 CF |
494 | p.name = name; |
495 | p.from_tty = from_tty; | |
496 | p.addrs = addrs; | |
497 | p.mainline = mainline; | |
498 | p.flags = flags; | |
499 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
500 | ||
501 | do_cleanups (cleanup); | |
502 | return p.ret; | |
503 | } | |
504 | ||
450005e7 CF |
505 | /* Remember the maximum DLL length for printing in info dll command. */ |
506 | int max_dll_name_len; | |
507 | ||
8e860359 CF |
508 | static void |
509 | register_loaded_dll (const char *name, DWORD load_addr) | |
510 | { | |
511 | struct so_stuff *so; | |
7470a420 | 512 | char ppath[MAX_PATH + 1]; |
3f8ad85b CF |
513 | char buf[MAX_PATH + 1]; |
514 | char cwd[MAX_PATH + 1]; | |
515 | char *p; | |
516 | WIN32_FIND_DATA w32_fd; | |
517 | HANDLE h = FindFirstFile(name, &w32_fd); | |
518 | size_t len; | |
519 | ||
520 | FindClose (h); | |
521 | strcpy (buf, name); | |
522 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
523 | { | |
524 | p = strrchr (buf, '\\'); | |
525 | if (p) | |
526 | p[1] = '\0'; | |
527 | SetCurrentDirectory (buf); | |
528 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
529 | SetCurrentDirectory (cwd); | |
530 | } | |
531 | ||
532 | cygwin_conv_to_posix_path (buf, ppath); | |
7470a420 CF |
533 | so = (struct so_stuff *) xmalloc (sizeof (struct so_stuff) + strlen (ppath) + 8 + 1); |
534 | so->loaded = 0; | |
8e860359 | 535 | so->load_addr = load_addr; |
7470a420 | 536 | strcpy (so->name, ppath); |
8e860359 CF |
537 | |
538 | solib_end->next = so; | |
539 | solib_end = so; | |
540 | so->next = NULL; | |
3f8ad85b CF |
541 | len = strlen (ppath); |
542 | if (len > max_dll_name_len) | |
543 | max_dll_name_len = len; | |
8e860359 CF |
544 | } |
545 | ||
24e60978 SC |
546 | /* Wait for child to do something. Return pid of child, or -1 in case |
547 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 548 | static int |
554cb486 | 549 | handle_load_dll (void *dummy ATTRIBUTE_UNUSED) |
24e60978 | 550 | { |
3a4b77d8 | 551 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
24e60978 SC |
552 | DWORD dll_name_ptr; |
553 | DWORD done; | |
3cee93ac | 554 | char dll_buf[MAX_PATH + 1]; |
450005e7 | 555 | char *dll_name = NULL; |
450005e7 | 556 | char *p; |
3cee93ac | 557 | |
3a4b77d8 | 558 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 559 | |
1e37c281 | 560 | if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf)) |
8e860359 | 561 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 562 | |
1e37c281 | 563 | dll_name = dll_buf; |
24e60978 | 564 | |
3cee93ac CF |
565 | /* Attempt to read the name of the dll that was detected. |
566 | This is documented to work only when actively debugging | |
567 | a program. It will not work for attached processes. */ | |
568 | if (dll_name == NULL || *dll_name == '\0') | |
24e60978 | 569 | { |
29fe111d | 570 | DWORD size = event->fUnicode ? sizeof (WCHAR) : sizeof (char); |
24e60978 SC |
571 | int len = 0; |
572 | char b[2]; | |
3cee93ac CF |
573 | |
574 | ReadProcessMemory (current_process_handle, | |
575 | (LPCVOID) event->lpImageName, | |
576 | (char *) &dll_name_ptr, | |
577 | sizeof (dll_name_ptr), &done); | |
578 | ||
579 | /* See if we could read the address of a string, and that the | |
3a4b77d8 | 580 | address isn't null. */ |
3cee93ac CF |
581 | |
582 | if (done != sizeof (dll_name_ptr) || !dll_name_ptr) | |
583 | return 1; | |
584 | ||
24e60978 SC |
585 | do |
586 | { | |
3cee93ac CF |
587 | ReadProcessMemory (current_process_handle, |
588 | (LPCVOID) (dll_name_ptr + len * size), | |
24e60978 SC |
589 | &b, |
590 | size, | |
591 | &done); | |
592 | len++; | |
593 | } | |
594 | while ((b[0] != 0 || b[size - 1] != 0) && done == size); | |
595 | ||
24e60978 SC |
596 | dll_name = alloca (len); |
597 | ||
3cee93ac | 598 | if (event->fUnicode) |
24e60978 SC |
599 | { |
600 | WCHAR *unicode_dll_name = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
3cee93ac CF |
601 | ReadProcessMemory (current_process_handle, |
602 | (LPCVOID) dll_name_ptr, | |
24e60978 SC |
603 | unicode_dll_name, |
604 | len * sizeof (WCHAR), | |
605 | &done); | |
606 | ||
607 | WideCharToMultiByte (CP_ACP, 0, | |
608 | unicode_dll_name, len, | |
609 | dll_name, len, 0, 0); | |
610 | } | |
611 | else | |
612 | { | |
3cee93ac CF |
613 | ReadProcessMemory (current_process_handle, |
614 | (LPCVOID) dll_name_ptr, | |
24e60978 SC |
615 | dll_name, |
616 | len, | |
617 | &done); | |
618 | } | |
24e60978 | 619 | } |
3cee93ac CF |
620 | |
621 | if (!dll_name) | |
622 | return 1; | |
623 | ||
8e860359 | 624 | register_loaded_dll (dll_name, (DWORD) event->lpBaseOfDll + 0x1000); |
450005e7 CF |
625 | |
626 | return 1; | |
627 | } | |
628 | ||
629 | /* Return name of last loaded DLL. */ | |
630 | char * | |
9d3789f7 | 631 | child_solib_loaded_library_pathname (int pid ATTRIBUTE_UNUSED) |
450005e7 | 632 | { |
8e860359 | 633 | return !solib_end || !solib_end->name[0] ? NULL : solib_end->name; |
450005e7 CF |
634 | } |
635 | ||
636 | /* Clear list of loaded DLLs. */ | |
637 | void | |
638 | child_clear_solibs (void) | |
639 | { | |
640 | struct so_stuff *so, *so1 = solib_start.next; | |
641 | ||
642 | while ((so = so1) != NULL) | |
643 | { | |
644 | so1 = so->next; | |
b8c9b27d | 645 | xfree (so); |
450005e7 CF |
646 | } |
647 | ||
648 | solib_start.next = NULL; | |
649 | solib_end = &solib_start; | |
650 | max_dll_name_len = sizeof ("DLL Name") - 1; | |
651 | } | |
652 | ||
653 | /* Add DLL symbol information. */ | |
02e423b9 CF |
654 | static void |
655 | solib_symbols_add (char *name, int from_tty, CORE_ADDR load_addr) | |
450005e7 CF |
656 | { |
657 | struct section_addr_info section_addrs; | |
658 | ||
3cee93ac CF |
659 | /* The symbols in a dll are offset by 0x1000, which is the |
660 | the offset from 0 of the first byte in an image - because | |
8a892701 | 661 | of the file header and the section alignment. */ |
3cee93ac | 662 | |
8e860359 | 663 | if (!name || !name[0]) |
450005e7 CF |
664 | return; |
665 | ||
666 | memset (§ion_addrs, 0, sizeof (section_addrs)); | |
0aa9cf96 | 667 | section_addrs.other[0].name = ".text"; |
8e860359 | 668 | section_addrs.other[0].addr = load_addr; |
7470a420 | 669 | safe_symbol_file_add (name, from_tty, NULL, 0, OBJF_SHARED); |
3cee93ac | 670 | |
450005e7 CF |
671 | return; |
672 | } | |
673 | ||
674 | /* Load DLL symbol info. */ | |
675 | void | |
7470a420 | 676 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 677 | { |
8e860359 | 678 | int n; |
450005e7 | 679 | dont_repeat (); |
8e860359 | 680 | |
450005e7 CF |
681 | if (args == NULL) |
682 | error ("dll-symbols requires a file name"); | |
683 | ||
8e860359 CF |
684 | n = strlen (args); |
685 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
686 | { | |
687 | char *newargs = (char *) alloca (n + 4 + 1); | |
688 | strcpy (newargs, args); | |
689 | strcat (newargs, ".dll"); | |
690 | args = newargs; | |
691 | } | |
692 | ||
7470a420 | 693 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 694 | } |
450005e7 CF |
695 | |
696 | /* List currently loaded DLLs. */ | |
697 | void | |
9d3789f7 | 698 | info_dll_command (char *ignore ATTRIBUTE_UNUSED, int from_tty ATTRIBUTE_UNUSED) |
450005e7 CF |
699 | { |
700 | struct so_stuff *so = &solib_start; | |
701 | ||
702 | if (!so->next) | |
703 | return; | |
704 | ||
705 | printf ("%*s Load Address\n", -max_dll_name_len, "DLL Name"); | |
706 | while ((so = so->next) != NULL) | |
7c5c87c0 | 707 | printf_filtered ("%*s %08lx\n", -max_dll_name_len, so->name, so->load_addr); |
450005e7 CF |
708 | |
709 | return; | |
24e60978 SC |
710 | } |
711 | ||
3cee93ac CF |
712 | /* Handle DEBUG_STRING output from child process. |
713 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
714 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
715 | static int | |
716 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
717 | { | |
718 | char *s; | |
719 | int gotasig = FALSE; | |
720 | ||
721 | if (!target_read_string | |
3a4b77d8 | 722 | ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0) |
3cee93ac CF |
723 | || !s || !*s) |
724 | return gotasig; | |
725 | ||
d3a09475 | 726 | if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0) |
3cee93ac | 727 | { |
d3a09475 | 728 | if (strncmp (s, "cYg", 3) != 0) |
29fe111d | 729 | warning ("%s", s); |
3cee93ac | 730 | } |
d3a09475 | 731 | else |
3cee93ac CF |
732 | { |
733 | char *p; | |
1e37c281 JM |
734 | int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
735 | gotasig = target_signal_from_host (sig); | |
0714f9bf SS |
736 | ourstatus->value.sig = gotasig; |
737 | if (gotasig) | |
3cee93ac CF |
738 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
739 | } | |
740 | ||
b8c9b27d | 741 | xfree (s); |
3cee93ac CF |
742 | return gotasig; |
743 | } | |
24e60978 | 744 | |
36339ecd | 745 | static int |
450005e7 | 746 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 747 | { |
3cee93ac | 748 | thread_info *th; |
29fe111d | 749 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 750 | |
29fe111d | 751 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 752 | |
3cee93ac CF |
753 | /* Record the context of the current thread */ |
754 | th = thread_rec (current_event.dwThreadId, -1); | |
24e60978 | 755 | |
29fe111d | 756 | switch (code) |
24e60978 | 757 | { |
1ef980b9 | 758 | case EXCEPTION_ACCESS_VIOLATION: |
29fe111d | 759 | DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08lx\n", |
8e860359 | 760 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 | 761 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
8a892701 | 762 | last_sig = SIGSEGV; |
1ef980b9 | 763 | break; |
3b7c8b74 JM |
764 | case STATUS_FLOAT_UNDERFLOW: |
765 | case STATUS_FLOAT_DIVIDE_BY_ZERO: | |
766 | case STATUS_FLOAT_OVERFLOW: | |
767 | case STATUS_INTEGER_DIVIDE_BY_ZERO: | |
29fe111d | 768 | DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08lx\n", |
8e860359 | 769 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
3b7c8b74 | 770 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
29fe111d | 771 | last_sig = SIGFPE; |
3b7c8b74 | 772 | break; |
1ef980b9 | 773 | case STATUS_STACK_OVERFLOW: |
29fe111d | 774 | DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08lx\n", |
8e860359 | 775 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
776 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
777 | break; | |
778 | case EXCEPTION_BREAKPOINT: | |
29fe111d | 779 | DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08lx\n", |
8e860359 | 780 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
781 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
782 | break; | |
783 | case DBG_CONTROL_C: | |
29fe111d | 784 | DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08lx\n", |
8e860359 | 785 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 | 786 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
8a892701 | 787 | last_sig = SIGINT; /* FIXME - should check pass state */ |
1ef980b9 SC |
788 | break; |
789 | case EXCEPTION_SINGLE_STEP: | |
29fe111d | 790 | DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08lx\n", |
8e860359 | 791 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
1ef980b9 SC |
792 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
793 | break; | |
8227c82d | 794 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
29fe111d | 795 | DEBUG_EXCEPT (("gdb: Target exception SINGLE_ILL at 0x%08lx\n", |
8e860359 | 796 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); |
8227c82d | 797 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
8a892701 | 798 | last_sig = SIGILL; |
8227c82d | 799 | break; |
1ef980b9 | 800 | default: |
02e423b9 CF |
801 | if (current_event.u.Exception.dwFirstChance) |
802 | return 0; | |
29fe111d | 803 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n", |
3a4b77d8 | 804 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
8e860359 | 805 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress); |
24e60978 | 806 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 807 | break; |
24e60978 | 808 | } |
24e60978 | 809 | exception_count++; |
36339ecd | 810 | return 1; |
24e60978 SC |
811 | } |
812 | ||
3cee93ac CF |
813 | /* Resume all artificially suspended threads if we are continuing |
814 | execution */ | |
815 | static BOOL | |
8a892701 | 816 | child_continue (DWORD continue_status, int id) |
3cee93ac CF |
817 | { |
818 | int i; | |
819 | thread_info *th; | |
820 | BOOL res; | |
821 | ||
29fe111d | 822 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, DBG_CONTINUE);\n", |
3cee93ac | 823 | current_event.dwProcessId, current_event.dwThreadId)); |
0714f9bf SS |
824 | res = ContinueDebugEvent (current_event.dwProcessId, |
825 | current_event.dwThreadId, | |
826 | continue_status); | |
1e37c281 | 827 | continue_status = 0; |
0714f9bf | 828 | if (res) |
3a4b77d8 | 829 | for (th = &thread_head; (th = th->next) != NULL;) |
29fe111d | 830 | if (((id == -1) || (id == (int) th->id)) && th->suspend_count) |
3cee93ac CF |
831 | { |
832 | for (i = 0; i < th->suspend_count; i++) | |
833 | (void) ResumeThread (th->h); | |
834 | th->suspend_count = 0; | |
835 | } | |
836 | ||
837 | return res; | |
838 | } | |
839 | ||
8a892701 CF |
840 | /* Get the next event from the child. Return 1 if the event requires |
841 | handling by WFI (or whatever). | |
842 | */ | |
1e37c281 | 843 | static int |
450005e7 | 844 | get_child_debug_event (int pid ATTRIBUTE_UNUSED, struct target_waitstatus *ourstatus) |
1e37c281 JM |
845 | { |
846 | BOOL debug_event; | |
8a892701 CF |
847 | DWORD continue_status, event_code; |
848 | thread_info *th = NULL; | |
849 | static thread_info dummy_thread_info; | |
450005e7 | 850 | int retval = 0; |
1e37c281 | 851 | |
9d3789f7 CF |
852 | last_sig = 0; |
853 | ||
8a892701 | 854 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 855 | goto out; |
1e37c281 JM |
856 | |
857 | event_count++; | |
858 | continue_status = DBG_CONTINUE; | |
1e37c281 | 859 | |
8a892701 | 860 | event_code = current_event.dwDebugEventCode; |
450005e7 | 861 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
8a892701 CF |
862 | |
863 | switch (event_code) | |
1e37c281 JM |
864 | { |
865 | case CREATE_THREAD_DEBUG_EVENT: | |
866 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
867 | (unsigned) current_event.dwProcessId, |
868 | (unsigned) current_event.dwThreadId, | |
869 | "CREATE_THREAD_DEBUG_EVENT")); | |
1e37c281 | 870 | /* Record the existence of this thread */ |
8a892701 CF |
871 | th = child_add_thread (current_event.dwThreadId, |
872 | current_event.u.CreateThread.hThread); | |
1e37c281 JM |
873 | if (info_verbose) |
874 | printf_unfiltered ("[New %s]\n", | |
39f77062 KB |
875 | target_pid_to_str ( |
876 | pid_to_ptid (current_event.dwThreadId))); | |
450005e7 | 877 | retval = current_event.dwThreadId; |
1e37c281 JM |
878 | break; |
879 | ||
880 | case EXIT_THREAD_DEBUG_EVENT: | |
881 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
882 | (unsigned) current_event.dwProcessId, |
883 | (unsigned) current_event.dwThreadId, | |
884 | "EXIT_THREAD_DEBUG_EVENT")); | |
1e37c281 | 885 | child_delete_thread (current_event.dwThreadId); |
8a892701 | 886 | th = &dummy_thread_info; |
1e37c281 JM |
887 | break; |
888 | ||
889 | case CREATE_PROCESS_DEBUG_EVENT: | |
890 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
891 | (unsigned) current_event.dwProcessId, |
892 | (unsigned) current_event.dwThreadId, | |
893 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 894 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
1e37c281 JM |
895 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
896 | ||
9d3789f7 | 897 | main_thread_id = current_event.dwThreadId; |
1e37c281 | 898 | /* Add the main thread */ |
9d3789f7 | 899 | #if 0 |
450005e7 CF |
900 | th = child_add_thread (current_event.dwProcessId, |
901 | current_event.u.CreateProcessInfo.hProcess); | |
9d3789f7 CF |
902 | #endif |
903 | th = child_add_thread (main_thread_id, | |
8a892701 | 904 | current_event.u.CreateProcessInfo.hThread); |
9d3789f7 | 905 | retval = ourstatus->value.related_pid = current_event.dwThreadId; |
1e37c281 JM |
906 | break; |
907 | ||
908 | case EXIT_PROCESS_DEBUG_EVENT: | |
909 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
910 | (unsigned) current_event.dwProcessId, |
911 | (unsigned) current_event.dwThreadId, | |
912 | "EXIT_PROCESS_DEBUG_EVENT")); | |
1e37c281 JM |
913 | ourstatus->kind = TARGET_WAITKIND_EXITED; |
914 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
915 | CloseHandle (current_process_handle); | |
9d3789f7 | 916 | retval = main_thread_id; |
8a892701 | 917 | break; |
1e37c281 JM |
918 | |
919 | case LOAD_DLL_DEBUG_EVENT: | |
920 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
921 | (unsigned) current_event.dwProcessId, |
922 | (unsigned) current_event.dwThreadId, | |
923 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 924 | CloseHandle (current_event.u.LoadDll.hFile); |
8a892701 | 925 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
1e37c281 | 926 | registers_changed (); /* mark all regs invalid */ |
450005e7 CF |
927 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
928 | ourstatus->value.integer = 0; | |
9d3789f7 | 929 | retval = main_thread_id; |
1e37c281 JM |
930 | break; |
931 | ||
932 | case UNLOAD_DLL_DEBUG_EVENT: | |
933 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
934 | (unsigned) current_event.dwProcessId, |
935 | (unsigned) current_event.dwThreadId, | |
936 | "UNLOAD_DLL_DEBUG_EVENT")); | |
937 | break; /* FIXME: don't know what to do here */ | |
1e37c281 JM |
938 | |
939 | case EXCEPTION_DEBUG_EVENT: | |
940 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
941 | (unsigned) current_event.dwProcessId, |
942 | (unsigned) current_event.dwThreadId, | |
943 | "EXCEPTION_DEBUG_EVENT")); | |
02e423b9 CF |
944 | if (handle_exception (ourstatus)) |
945 | retval = current_event.dwThreadId; | |
1e37c281 JM |
946 | break; |
947 | ||
8a892701 | 948 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
1e37c281 | 949 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", |
8a892701 CF |
950 | (unsigned) current_event.dwProcessId, |
951 | (unsigned) current_event.dwThreadId, | |
952 | "OUTPUT_DEBUG_STRING_EVENT")); | |
8e860359 | 953 | if (handle_output_debug_string (ourstatus)) |
9d3789f7 | 954 | retval = main_thread_id; |
1e37c281 | 955 | break; |
9d3789f7 | 956 | |
1e37c281 | 957 | default: |
29fe111d CF |
958 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
959 | (DWORD) current_event.dwProcessId, | |
960 | (DWORD) current_event.dwThreadId); | |
961 | printf_unfiltered (" unknown event code %ld\n", | |
1e37c281 JM |
962 | current_event.dwDebugEventCode); |
963 | break; | |
964 | } | |
965 | ||
450005e7 | 966 | if (!retval) |
8a892701 | 967 | CHECK (child_continue (continue_status, -1)); |
450005e7 | 968 | else |
9d3789f7 | 969 | { |
8e860359 | 970 | current_thread = th ? : thread_rec (current_event.dwThreadId, TRUE); |
39f77062 | 971 | inferior_ptid = pid_to_ptid (retval); |
9d3789f7 | 972 | } |
1e37c281 JM |
973 | |
974 | out: | |
450005e7 | 975 | return retval; |
1e37c281 JM |
976 | } |
977 | ||
1e37c281 | 978 | /* Wait for interesting events to occur in the target process. */ |
39f77062 KB |
979 | static ptid_t |
980 | child_wait (ptid_t ptid, struct target_waitstatus *ourstatus) | |
24e60978 | 981 | { |
39f77062 KB |
982 | int pid = PIDGET (ptid); |
983 | ||
24e60978 SC |
984 | /* We loop when we get a non-standard exception rather than return |
985 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 986 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 SC |
987 | the birth or death of threads, which mean that the current thread |
988 | isn't necessarily what you think it is. */ | |
989 | ||
990 | while (1) | |
450005e7 CF |
991 | { |
992 | int retval = get_child_debug_event (pid, ourstatus); | |
993 | if (retval) | |
39f77062 | 994 | return pid_to_ptid (retval); |
450005e7 CF |
995 | else |
996 | { | |
997 | int detach = 0; | |
3cee93ac | 998 | |
450005e7 CF |
999 | if (ui_loop_hook != NULL) |
1000 | detach = ui_loop_hook (0); | |
0714f9bf | 1001 | |
450005e7 CF |
1002 | if (detach) |
1003 | child_kill_inferior (); | |
1004 | } | |
1005 | } | |
24e60978 SC |
1006 | } |
1007 | ||
9d3789f7 CF |
1008 | static void |
1009 | do_initial_child_stuff (DWORD pid) | |
1010 | { | |
1011 | extern int stop_after_trap; | |
1012 | ||
1013 | last_sig = 0; | |
1014 | event_count = 0; | |
1015 | exception_count = 0; | |
1016 | current_event.dwProcessId = pid; | |
1017 | memset (¤t_event, 0, sizeof (current_event)); | |
1018 | push_target (&child_ops); | |
1019 | child_init_thread_list (); | |
1020 | child_clear_solibs (); | |
1021 | clear_proceed_status (); | |
1022 | init_wait_for_inferior (); | |
1023 | ||
1024 | target_terminal_init (); | |
1025 | target_terminal_inferior (); | |
1026 | ||
1027 | while (1) | |
1028 | { | |
1029 | stop_after_trap = 1; | |
1030 | wait_for_inferior (); | |
1031 | if (stop_signal != TARGET_SIGNAL_TRAP) | |
1032 | resume (0, stop_signal); | |
1033 | else | |
1034 | break; | |
1035 | } | |
1036 | stop_after_trap = 0; | |
1037 | return; | |
1038 | } | |
1039 | ||
02cc9f49 CV |
1040 | /* Since Windows XP, detaching from a process is supported by Windows. |
1041 | The following code tries loading the appropriate functions dynamically. | |
1042 | If loading these functions succeeds use them to actually detach from | |
1043 | the inferior process, otherwise behave as usual, pretending that | |
1044 | detach has worked. */ | |
1045 | static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL); | |
1046 | static BOOL WINAPI (*DebugActiveProcessStop)(DWORD); | |
1047 | ||
1048 | static int | |
1049 | has_detach_ability () | |
1050 | { | |
1051 | static HMODULE kernel32 = NULL; | |
1052 | ||
1053 | if (!kernel32) | |
1054 | kernel32 = LoadLibrary ("kernel32.dll"); | |
1055 | if (kernel32) | |
1056 | { | |
1057 | if (!DebugSetProcessKillOnExit) | |
1058 | DebugSetProcessKillOnExit = GetProcAddress (kernel32, | |
1059 | "DebugSetProcessKillOnExit"); | |
1060 | if (!DebugActiveProcessStop) | |
1061 | DebugActiveProcessStop = GetProcAddress (kernel32, | |
1062 | "DebugActiveProcessStop"); | |
1063 | if (DebugSetProcessKillOnExit && DebugActiveProcessStop) | |
1064 | return 1; | |
1065 | } | |
1066 | return 0; | |
1067 | } | |
24e60978 | 1068 | |
02cc9f49 | 1069 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1070 | static void |
fba45db2 | 1071 | child_attach (char *args, int from_tty) |
24e60978 SC |
1072 | { |
1073 | BOOL ok; | |
559e75c0 | 1074 | DWORD pid; |
24e60978 SC |
1075 | |
1076 | if (!args) | |
1077 | error_no_arg ("process-id to attach"); | |
1078 | ||
559e75c0 | 1079 | pid = strtoul (args, 0, 0); |
9d3789f7 | 1080 | ok = DebugActiveProcess (pid); |
24e60978 SC |
1081 | |
1082 | if (!ok) | |
1083 | error ("Can't attach to process."); | |
1084 | ||
02cc9f49 CV |
1085 | if (has_detach_ability ()) |
1086 | { | |
1087 | attach_flag = 1; | |
1088 | DebugSetProcessKillOnExit (FALSE); | |
1089 | } | |
1090 | ||
24e60978 SC |
1091 | if (from_tty) |
1092 | { | |
1093 | char *exec_file = (char *) get_exec_file (0); | |
1094 | ||
1095 | if (exec_file) | |
1096 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1097 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1098 | else |
1099 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1100 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1101 | |
1102 | gdb_flush (gdb_stdout); | |
1103 | } | |
1104 | ||
9d3789f7 CF |
1105 | do_initial_child_stuff (pid); |
1106 | target_terminal_ours (); | |
24e60978 SC |
1107 | } |
1108 | ||
24e60978 | 1109 | static void |
29fe111d | 1110 | child_detach (char *args ATTRIBUTE_UNUSED, int from_tty) |
24e60978 | 1111 | { |
02cc9f49 CV |
1112 | int detached = 1; |
1113 | ||
1114 | if (has_detach_ability ()) | |
1115 | { | |
1116 | delete_command (NULL, 0); | |
1117 | child_continue (DBG_CONTINUE, -1); | |
1118 | if (!DebugActiveProcessStop (current_event.dwProcessId)) | |
1119 | { | |
1120 | error ("Can't detach process %lu (error %lu)", | |
1121 | current_event.dwProcessId, GetLastError ()); | |
1122 | detached = 0; | |
1123 | } | |
1124 | DebugSetProcessKillOnExit (FALSE); | |
1125 | } | |
1126 | if (detached && from_tty) | |
24e60978 SC |
1127 | { |
1128 | char *exec_file = get_exec_file (0); | |
1129 | if (exec_file == 0) | |
1130 | exec_file = ""; | |
02cc9f49 CV |
1131 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1132 | current_event.dwProcessId); | |
24e60978 SC |
1133 | gdb_flush (gdb_stdout); |
1134 | } | |
39f77062 | 1135 | inferior_ptid = null_ptid; |
24e60978 SC |
1136 | unpush_target (&child_ops); |
1137 | } | |
1138 | ||
24e60978 SC |
1139 | /* Print status information about what we're accessing. */ |
1140 | ||
1141 | static void | |
29fe111d | 1142 | child_files_info (struct target_ops *ignore ATTRIBUTE_UNUSED) |
24e60978 SC |
1143 | { |
1144 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
39f77062 | 1145 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid)); |
24e60978 SC |
1146 | } |
1147 | ||
1148 | /* ARGSUSED */ | |
1149 | static void | |
29fe111d | 1150 | child_open (char *arg ATTRIBUTE_UNUSED, int from_tty ATTRIBUTE_UNUSED) |
24e60978 SC |
1151 | { |
1152 | error ("Use the \"run\" command to start a Unix child process."); | |
1153 | } | |
1154 | ||
39f77062 | 1155 | /* Start an inferior win32 child process and sets inferior_ptid to its pid. |
24e60978 SC |
1156 | EXEC_FILE is the file to run. |
1157 | ALLARGS is a string containing the arguments to the program. | |
1158 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1159 | ||
24e60978 | 1160 | static void |
fba45db2 | 1161 | child_create_inferior (char *exec_file, char *allargs, char **env) |
24e60978 | 1162 | { |
1750a5ef SC |
1163 | char real_path[MAXPATHLEN]; |
1164 | char *winenv; | |
1165 | char *temp; | |
3a4b77d8 | 1166 | int envlen; |
1750a5ef | 1167 | int i; |
24e60978 SC |
1168 | STARTUPINFO si; |
1169 | PROCESS_INFORMATION pi; | |
24e60978 SC |
1170 | BOOL ret; |
1171 | DWORD flags; | |
eb708f2e | 1172 | char *args; |
24e60978 SC |
1173 | |
1174 | if (!exec_file) | |
450005e7 | 1175 | error ("No executable specified, use `target exec'.\n"); |
24e60978 SC |
1176 | |
1177 | memset (&si, 0, sizeof (si)); | |
1178 | si.cb = sizeof (si); | |
1179 | ||
29fe111d | 1180 | cygwin_conv_to_win32_path (exec_file, real_path); |
24e60978 | 1181 | |
3cee93ac | 1182 | flags = DEBUG_ONLY_THIS_PROCESS; |
24e60978 SC |
1183 | |
1184 | if (new_group) | |
1185 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1186 | ||
1187 | if (new_console) | |
1188 | flags |= CREATE_NEW_CONSOLE; | |
1189 | ||
3d78f532 SC |
1190 | args = alloca (strlen (real_path) + strlen (allargs) + 2); |
1191 | ||
1192 | strcpy (args, real_path); | |
eb708f2e | 1193 | |
eb708f2e SC |
1194 | strcat (args, " "); |
1195 | strcat (args, allargs); | |
1196 | ||
e88c49c3 DE |
1197 | /* Prepare the environment vars for CreateProcess. */ |
1198 | { | |
1199 | /* This code use to assume all env vars were file names and would | |
1200 | translate them all to win32 style. That obviously doesn't work in the | |
2dcfc9c7 DE |
1201 | general case. The current rule is that we only translate PATH. |
1202 | We need to handle PATH because we're about to call CreateProcess and | |
1203 | it uses PATH to find DLL's. Fortunately PATH has a well-defined value | |
1204 | in both posix and win32 environments. cygwin.dll will change it back | |
1205 | to posix style if necessary. */ | |
e88c49c3 DE |
1206 | |
1207 | static const char *conv_path_names[] = | |
3a4b77d8 JM |
1208 | { |
1209 | "PATH=", | |
1210 | 0 | |
1211 | }; | |
e88c49c3 DE |
1212 | |
1213 | /* CreateProcess takes the environment list as a null terminated set of | |
1214 | strings (i.e. two nulls terminate the list). */ | |
1215 | ||
1216 | /* Get total size for env strings. */ | |
1217 | for (envlen = 0, i = 0; env[i] && *env[i]; i++) | |
1218 | { | |
2dcfc9c7 | 1219 | int j, len; |
e88c49c3 | 1220 | |
2dcfc9c7 DE |
1221 | for (j = 0; conv_path_names[j]; j++) |
1222 | { | |
1223 | len = strlen (conv_path_names[j]); | |
1224 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 1225 | { |
29fe111d | 1226 | if (cygwin_posix_path_list_p (env[i] + len)) |
2dcfc9c7 | 1227 | envlen += len |
29fe111d | 1228 | + cygwin_posix_to_win32_path_list_buf_size (env[i] + len); |
2dcfc9c7 DE |
1229 | else |
1230 | envlen += strlen (env[i]) + 1; | |
1231 | break; | |
e88c49c3 | 1232 | } |
e88c49c3 | 1233 | } |
2dcfc9c7 | 1234 | if (conv_path_names[j] == NULL) |
e88c49c3 DE |
1235 | envlen += strlen (env[i]) + 1; |
1236 | } | |
1237 | ||
1238 | winenv = alloca (envlen + 1); | |
1239 | ||
1240 | /* Copy env strings into new buffer. */ | |
3cee93ac | 1241 | for (temp = winenv, i = 0; env[i] && *env[i]; i++) |
e88c49c3 | 1242 | { |
2dcfc9c7 | 1243 | int j, len; |
e88c49c3 | 1244 | |
2dcfc9c7 DE |
1245 | for (j = 0; conv_path_names[j]; j++) |
1246 | { | |
1247 | len = strlen (conv_path_names[j]); | |
1248 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 1249 | { |
29fe111d | 1250 | if (cygwin_posix_path_list_p (env[i] + len)) |
e88c49c3 DE |
1251 | { |
1252 | memcpy (temp, env[i], len); | |
29fe111d | 1253 | cygwin_posix_to_win32_path_list (env[i] + len, temp + len); |
e88c49c3 | 1254 | } |
2dcfc9c7 DE |
1255 | else |
1256 | strcpy (temp, env[i]); | |
1257 | break; | |
e88c49c3 | 1258 | } |
e88c49c3 | 1259 | } |
2dcfc9c7 | 1260 | if (conv_path_names[j] == NULL) |
e88c49c3 | 1261 | strcpy (temp, env[i]); |
2dcfc9c7 | 1262 | |
e88c49c3 DE |
1263 | temp += strlen (temp) + 1; |
1264 | } | |
1265 | ||
1266 | /* Final nil string to terminate new env. */ | |
1267 | *temp = 0; | |
1268 | } | |
1750a5ef | 1269 | |
1750a5ef | 1270 | ret = CreateProcess (0, |
3a4b77d8 | 1271 | args, /* command line */ |
24e60978 SC |
1272 | NULL, /* Security */ |
1273 | NULL, /* thread */ | |
1274 | TRUE, /* inherit handles */ | |
1275 | flags, /* start flags */ | |
1750a5ef | 1276 | winenv, |
24e60978 SC |
1277 | NULL, /* current directory */ |
1278 | &si, | |
1279 | &pi); | |
1280 | if (!ret) | |
3a4b77d8 | 1281 | error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ()); |
24e60978 | 1282 | |
700b351b CF |
1283 | CloseHandle (pi.hThread); |
1284 | CloseHandle (pi.hProcess); | |
9d3789f7 | 1285 | do_initial_child_stuff (pi.dwProcessId); |
d3a09475 | 1286 | |
8e860359 | 1287 | /* child_continue (DBG_CONTINUE, -1); */ |
1e37c281 | 1288 | proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0); |
24e60978 SC |
1289 | } |
1290 | ||
1291 | static void | |
fba45db2 | 1292 | child_mourn_inferior (void) |
24e60978 | 1293 | { |
8a892701 | 1294 | (void) child_continue (DBG_CONTINUE, -1); |
24e60978 SC |
1295 | unpush_target (&child_ops); |
1296 | generic_mourn_inferior (); | |
1297 | } | |
1298 | ||
24e60978 SC |
1299 | /* Send a SIGINT to the process group. This acts just like the user typed a |
1300 | ^C on the controlling terminal. */ | |
1301 | ||
b607efe7 | 1302 | static void |
fba45db2 | 1303 | child_stop (void) |
24e60978 | 1304 | { |
1ef980b9 | 1305 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 1306 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 1307 | registers_changed (); /* refresh register state */ |
24e60978 SC |
1308 | } |
1309 | ||
1310 | int | |
eb708f2e | 1311 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, |
56c40d46 | 1312 | int write, struct mem_attrib *mem ATTRIBUTE_UNUSED, |
aea02b6b | 1313 | struct target_ops *target ATTRIBUTE_UNUSED) |
24e60978 SC |
1314 | { |
1315 | DWORD done; | |
1316 | if (write) | |
1317 | { | |
29fe111d CF |
1318 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
1319 | len, (DWORD) memaddr)); | |
3cee93ac CF |
1320 | WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our, |
1321 | len, &done); | |
1322 | FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len); | |
24e60978 SC |
1323 | } |
1324 | else | |
1325 | { | |
29fe111d CF |
1326 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
1327 | len, (DWORD) memaddr)); | |
3cee93ac CF |
1328 | ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, len, |
1329 | &done); | |
24e60978 SC |
1330 | } |
1331 | return done; | |
1332 | } | |
1333 | ||
1334 | void | |
1335 | child_kill_inferior (void) | |
1336 | { | |
3cee93ac CF |
1337 | CHECK (TerminateProcess (current_process_handle, 0)); |
1338 | ||
b5edcb45 ILT |
1339 | for (;;) |
1340 | { | |
8a892701 | 1341 | if (!child_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 1342 | break; |
3cee93ac | 1343 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 1344 | break; |
3cee93ac | 1345 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
1346 | break; |
1347 | } | |
1348 | ||
3cee93ac CF |
1349 | CHECK (CloseHandle (current_process_handle)); |
1350 | ||
1351 | /* this may fail in an attached process so don't check. */ | |
1352 | (void) CloseHandle (current_thread->h); | |
3a4b77d8 | 1353 | target_mourn_inferior (); /* or just child_mourn_inferior? */ |
24e60978 SC |
1354 | } |
1355 | ||
1356 | void | |
39f77062 | 1357 | child_resume (ptid_t ptid, int step, enum target_signal sig) |
24e60978 | 1358 | { |
3cee93ac | 1359 | thread_info *th; |
8a892701 | 1360 | DWORD continue_status = last_sig > 0 && last_sig < NSIG ? |
8e860359 | 1361 | DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE; |
39f77062 | 1362 | int pid = PIDGET (ptid); |
8a892701 CF |
1363 | |
1364 | last_sig = 0; | |
24e60978 | 1365 | |
3cee93ac CF |
1366 | DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n", |
1367 | pid, step, sig)); | |
1368 | ||
1369 | /* Get context for currently selected thread */ | |
1370 | th = thread_rec (current_event.dwThreadId, FALSE); | |
450005e7 | 1371 | if (th) |
24e60978 | 1372 | { |
450005e7 CF |
1373 | if (step) |
1374 | { | |
1375 | /* Single step by setting t bit */ | |
1376 | child_fetch_inferior_registers (PS_REGNUM); | |
1377 | th->context.EFlags |= FLAG_TRACE_BIT; | |
1378 | } | |
24e60978 | 1379 | |
450005e7 CF |
1380 | if (th->context.ContextFlags) |
1381 | { | |
1382 | CHECK (SetThreadContext (th->h, &th->context)); | |
1383 | th->context.ContextFlags = 0; | |
1384 | } | |
24e60978 SC |
1385 | } |
1386 | ||
3cee93ac CF |
1387 | /* Allow continuing with the same signal that interrupted us. |
1388 | Otherwise complain. */ | |
24e60978 | 1389 | |
8a892701 | 1390 | child_continue (continue_status, pid); |
24e60978 SC |
1391 | } |
1392 | ||
1393 | static void | |
fba45db2 | 1394 | child_prepare_to_store (void) |
24e60978 SC |
1395 | { |
1396 | /* Do nothing, since we can store individual regs */ | |
1397 | } | |
1398 | ||
1399 | static int | |
fba45db2 | 1400 | child_can_run (void) |
24e60978 SC |
1401 | { |
1402 | return 1; | |
1403 | } | |
1404 | ||
1405 | static void | |
9d3789f7 | 1406 | child_close (int x ATTRIBUTE_UNUSED) |
24e60978 | 1407 | { |
39f77062 KB |
1408 | DEBUG_EVENTS (("gdb: child_close, inferior_ptid=%d\n", |
1409 | PIDGET (inferior_ptid))); | |
24e60978 | 1410 | } |
1ef980b9 | 1411 | |
3a4b77d8 | 1412 | struct target_ops child_ops; |
c719b714 | 1413 | |
3a4b77d8 JM |
1414 | static void |
1415 | init_child_ops (void) | |
24e60978 | 1416 | { |
3a4b77d8 JM |
1417 | child_ops.to_shortname = "child"; |
1418 | child_ops.to_longname = "Win32 child process"; | |
1419 | child_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
1420 | child_ops.to_open = child_open; | |
1421 | child_ops.to_close = child_close; | |
1422 | child_ops.to_attach = child_attach; | |
1423 | child_ops.to_detach = child_detach; | |
1424 | child_ops.to_resume = child_resume; | |
1425 | child_ops.to_wait = child_wait; | |
1426 | child_ops.to_fetch_registers = child_fetch_inferior_registers; | |
1427 | child_ops.to_store_registers = child_store_inferior_registers; | |
1428 | child_ops.to_prepare_to_store = child_prepare_to_store; | |
1429 | child_ops.to_xfer_memory = child_xfer_memory; | |
1430 | child_ops.to_files_info = child_files_info; | |
1431 | child_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
1432 | child_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
1433 | child_ops.to_terminal_init = terminal_init_inferior; | |
1434 | child_ops.to_terminal_inferior = terminal_inferior; | |
1435 | child_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
1436 | child_ops.to_terminal_ours = terminal_ours; | |
1437 | child_ops.to_terminal_info = child_terminal_info; | |
1438 | child_ops.to_kill = child_kill_inferior; | |
1439 | child_ops.to_load = 0; | |
1440 | child_ops.to_lookup_symbol = 0; | |
1441 | child_ops.to_create_inferior = child_create_inferior; | |
1442 | child_ops.to_mourn_inferior = child_mourn_inferior; | |
1443 | child_ops.to_can_run = child_can_run; | |
1444 | child_ops.to_notice_signals = 0; | |
1445 | child_ops.to_thread_alive = win32_child_thread_alive; | |
d3a09475 | 1446 | child_ops.to_pid_to_str = cygwin_pid_to_str; |
3a4b77d8 JM |
1447 | child_ops.to_stop = child_stop; |
1448 | child_ops.to_stratum = process_stratum; | |
1449 | child_ops.DONT_USE = 0; | |
1450 | child_ops.to_has_all_memory = 1; | |
1451 | child_ops.to_has_memory = 1; | |
1452 | child_ops.to_has_stack = 1; | |
1453 | child_ops.to_has_registers = 1; | |
1454 | child_ops.to_has_execution = 1; | |
1455 | child_ops.to_sections = 0; | |
1456 | child_ops.to_sections_end = 0; | |
1457 | child_ops.to_magic = OPS_MAGIC; | |
c719b714 | 1458 | } |
24e60978 SC |
1459 | |
1460 | void | |
fba45db2 | 1461 | _initialize_inftarg (void) |
24e60978 | 1462 | { |
fa58ee11 EZ |
1463 | struct cmd_list_element *c; |
1464 | ||
3a4b77d8 | 1465 | init_child_ops (); |
1ef980b9 | 1466 | |
fa58ee11 EZ |
1467 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1468 | "Load dll library symbols from FILE."); | |
1469 | c->completer = filename_completer; | |
450005e7 CF |
1470 | |
1471 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
1472 | ||
1473 | add_show_from_set (add_set_cmd ("new-console", class_support, var_boolean, | |
8e860359 CF |
1474 | (char *) &new_console, |
1475 | "Set creation of new console when creating child process.", | |
1476 | &setlist), | |
1477 | &showlist); | |
24e60978 | 1478 | |
450005e7 | 1479 | add_show_from_set (add_set_cmd ("new-group", class_support, var_boolean, |
8e860359 CF |
1480 | (char *) &new_group, |
1481 | "Set creation of new group when creating child process.", | |
1482 | &setlist), | |
1483 | &showlist); | |
24e60978 | 1484 | |
450005e7 | 1485 | add_show_from_set (add_set_cmd ("debugexec", class_support, var_boolean, |
8e860359 CF |
1486 | (char *) &debug_exec, |
1487 | "Set whether to display execution in child process.", | |
1488 | &setlist), | |
1489 | &showlist); | |
1ef980b9 | 1490 | |
450005e7 | 1491 | add_show_from_set (add_set_cmd ("debugevents", class_support, var_boolean, |
8e860359 CF |
1492 | (char *) &debug_events, |
1493 | "Set whether to display kernel events in child process.", | |
1494 | &setlist), | |
1495 | &showlist); | |
1ef980b9 | 1496 | |
450005e7 | 1497 | add_show_from_set (add_set_cmd ("debugmemory", class_support, var_boolean, |
8e860359 CF |
1498 | (char *) &debug_memory, |
1499 | "Set whether to display memory accesses in child process.", | |
1500 | &setlist), | |
1501 | &showlist); | |
1ef980b9 | 1502 | |
450005e7 | 1503 | add_show_from_set (add_set_cmd ("debugexceptions", class_support, var_boolean, |
8e860359 CF |
1504 | (char *) &debug_exceptions, |
1505 | "Set whether to display kernel exceptions in child process.", | |
1506 | &setlist), | |
1507 | &showlist); | |
1ef980b9 | 1508 | |
450005e7 CF |
1509 | add_info ("dll", info_dll_command, "Status of loaded DLLs."); |
1510 | add_info_alias ("sharedlibrary", "dll", 1); | |
1511 | ||
24e60978 SC |
1512 | add_target (&child_ops); |
1513 | } | |
3cee93ac CF |
1514 | |
1515 | /* Determine if the thread referenced by "pid" is alive | |
1516 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 | |
1517 | it means that the pid has died. Otherwise it is assumed to be alive. */ | |
1518 | static int | |
39f77062 | 1519 | win32_child_thread_alive (ptid_t ptid) |
3cee93ac | 1520 | { |
39f77062 KB |
1521 | int pid = PIDGET (ptid); |
1522 | ||
3a4b77d8 JM |
1523 | return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
1524 | FALSE : TRUE; | |
3cee93ac CF |
1525 | } |
1526 | ||
1527 | /* Convert pid to printable format. */ | |
1528 | char * | |
39f77062 | 1529 | cygwin_pid_to_str (ptid_t ptid) |
3cee93ac CF |
1530 | { |
1531 | static char buf[80]; | |
39f77062 KB |
1532 | int pid = PIDGET (ptid); |
1533 | ||
29fe111d | 1534 | if ((DWORD) pid == current_event.dwProcessId) |
3cee93ac CF |
1535 | sprintf (buf, "process %d", pid); |
1536 | else | |
29fe111d | 1537 | sprintf (buf, "thread %ld.0x%x", current_event.dwProcessId, pid); |
3cee93ac CF |
1538 | return buf; |
1539 | } | |
8e860359 CF |
1540 | |
1541 | static int | |
1542 | core_dll_symbols_add (char *dll_name, DWORD base_addr) | |
1543 | { | |
1544 | struct objfile *objfile; | |
1545 | char *objfile_basename; | |
1546 | const char *dll_basename; | |
1547 | ||
1548 | if (!(dll_basename = strrchr (dll_name, '/'))) | |
1549 | dll_basename = dll_name; | |
1550 | else | |
1551 | dll_basename++; | |
1552 | ||
1553 | ALL_OBJFILES (objfile) | |
1554 | { | |
1555 | objfile_basename = strrchr (objfile->name, '/'); | |
1556 | ||
1557 | if (objfile_basename && | |
1558 | strcmp (dll_basename, objfile_basename + 1) == 0) | |
1559 | { | |
1560 | printf_unfiltered ("%08lx:%s (symbols previously loaded)\n", | |
1561 | base_addr, dll_name); | |
1562 | goto out; | |
1563 | } | |
1564 | } | |
1565 | ||
1566 | register_loaded_dll (dll_name, base_addr + 0x1000); | |
02e423b9 | 1567 | solib_symbols_add (dll_name, 0, (CORE_ADDR) base_addr + 0x1000); |
8e860359 CF |
1568 | |
1569 | out: | |
1570 | return 1; | |
1571 | } | |
1572 | ||
1573 | typedef struct | |
1574 | { | |
1575 | struct target_ops *target; | |
1576 | bfd_vma addr; | |
1577 | } | |
1578 | map_code_section_args; | |
1579 | ||
1580 | static void | |
554cb486 | 1581 | map_single_dll_code_section (bfd * abfd, asection * sect, void *obj) |
8e860359 CF |
1582 | { |
1583 | int old; | |
1584 | int update_coreops; | |
1585 | struct section_table *new_target_sect_ptr; | |
1586 | ||
1587 | map_code_section_args *args = (map_code_section_args *) obj; | |
1588 | struct target_ops *target = args->target; | |
1589 | if (sect->flags & SEC_CODE) | |
1590 | { | |
1591 | update_coreops = core_ops.to_sections == target->to_sections; | |
1592 | ||
1593 | if (target->to_sections) | |
1594 | { | |
1595 | old = target->to_sections_end - target->to_sections; | |
1596 | target->to_sections = (struct section_table *) | |
1597 | xrealloc ((char *) target->to_sections, | |
1598 | (sizeof (struct section_table)) * (1 + old)); | |
1599 | } | |
1600 | else | |
1601 | { | |
1602 | old = 0; | |
1603 | target->to_sections = (struct section_table *) | |
1604 | xmalloc ((sizeof (struct section_table))); | |
1605 | } | |
1606 | target->to_sections_end = target->to_sections + (1 + old); | |
1607 | ||
1608 | /* Update the to_sections field in the core_ops structure | |
1609 | if needed. */ | |
1610 | if (update_coreops) | |
1611 | { | |
1612 | core_ops.to_sections = target->to_sections; | |
1613 | core_ops.to_sections_end = target->to_sections_end; | |
1614 | } | |
1615 | new_target_sect_ptr = target->to_sections + old; | |
1616 | new_target_sect_ptr->addr = args->addr + bfd_section_vma (abfd, sect); | |
1617 | new_target_sect_ptr->endaddr = args->addr + bfd_section_vma (abfd, sect) + | |
1618 | bfd_section_size (abfd, sect);; | |
1619 | new_target_sect_ptr->the_bfd_section = sect; | |
1620 | new_target_sect_ptr->bfd = abfd; | |
1621 | } | |
1622 | } | |
1623 | ||
1624 | static int | |
1625 | dll_code_sections_add (const char *dll_name, int base_addr, struct target_ops *target) | |
1626 | { | |
1627 | bfd *dll_bfd; | |
1628 | map_code_section_args map_args; | |
1629 | asection *lowest_sect; | |
1630 | char *name; | |
1631 | if (dll_name == NULL || target == NULL) | |
1632 | return 0; | |
66ed1d85 | 1633 | name = xstrdup (dll_name); |
8e860359 CF |
1634 | dll_bfd = bfd_openr (name, "pei-i386"); |
1635 | if (dll_bfd == NULL) | |
1636 | return 0; | |
1637 | ||
1638 | if (bfd_check_format (dll_bfd, bfd_object)) | |
1639 | { | |
1640 | lowest_sect = bfd_get_section_by_name (dll_bfd, ".text"); | |
1641 | if (lowest_sect == NULL) | |
1642 | return 0; | |
1643 | map_args.target = target; | |
1644 | map_args.addr = base_addr - bfd_section_vma (dll_bfd, lowest_sect); | |
1645 | ||
554cb486 | 1646 | bfd_map_over_sections (dll_bfd, &map_single_dll_code_section, (void *) (&map_args)); |
8e860359 CF |
1647 | } |
1648 | ||
1649 | return 1; | |
1650 | } | |
1651 | ||
1652 | static void | |
554cb486 | 1653 | core_section_load_dll_symbols (bfd * abfd, asection * sect, void *obj) |
8e860359 CF |
1654 | { |
1655 | struct target_ops *target = (struct target_ops *) obj; | |
1656 | ||
1657 | DWORD base_addr; | |
1658 | ||
1659 | int dll_name_size; | |
1660 | char *dll_name = NULL; | |
1661 | char *buf = NULL; | |
1662 | struct win32_pstatus *pstatus; | |
1663 | char *p; | |
1664 | ||
1665 | if (strncmp (sect->name, ".module", 7)) | |
1666 | return; | |
1667 | ||
1668 | buf = (char *) xmalloc (sect->_raw_size + 1); | |
1669 | if (!buf) | |
1670 | { | |
1671 | printf_unfiltered ("memory allocation failed for %s\n", sect->name); | |
1672 | goto out; | |
1673 | } | |
1674 | if (!bfd_get_section_contents (abfd, sect, buf, 0, sect->_raw_size)) | |
1675 | goto out; | |
1676 | ||
1677 | pstatus = (struct win32_pstatus *) buf; | |
1678 | ||
1679 | memmove (&base_addr, &(pstatus->data.module_info.base_address), sizeof (base_addr)); | |
1680 | dll_name_size = pstatus->data.module_info.module_name_size; | |
1681 | if (offsetof (struct win32_pstatus, data.module_info.module_name) + dll_name_size > sect->_raw_size) | |
1682 | goto out; | |
1683 | ||
1684 | dll_name = (char *) xmalloc (dll_name_size + 1); | |
1685 | if (!dll_name) | |
1686 | { | |
1687 | printf_unfiltered ("memory allocation failed for %s\n", sect->name); | |
1688 | goto out; | |
1689 | } | |
1690 | strncpy (dll_name, pstatus->data.module_info.module_name, dll_name_size); | |
1691 | ||
1692 | while ((p = strchr (dll_name, '\\'))) | |
1693 | *p = '/'; | |
1694 | ||
1695 | if (!core_dll_symbols_add (dll_name, (DWORD) base_addr)) | |
1696 | printf_unfiltered ("%s: Failed to load dll symbols.\n", dll_name); | |
1697 | ||
1698 | if (!dll_code_sections_add (dll_name, (DWORD) base_addr + 0x1000, target)) | |
1699 | printf_unfiltered ("%s: Failed to map dll code sections.\n", dll_name); | |
1700 | ||
1701 | out: | |
1702 | if (buf) | |
b8c9b27d | 1703 | xfree (buf); |
8e860359 | 1704 | if (dll_name) |
b8c9b27d | 1705 | xfree (dll_name); |
8e860359 CF |
1706 | return; |
1707 | } | |
1708 | ||
1709 | void | |
02e423b9 | 1710 | child_solib_add (char *filename ATTRIBUTE_UNUSED, int from_tty, struct target_ops *target) |
8e860359 CF |
1711 | { |
1712 | if (core_bfd) | |
1713 | { | |
1714 | child_clear_solibs (); | |
1715 | bfd_map_over_sections (core_bfd, &core_section_load_dll_symbols, target); | |
1716 | } | |
1717 | else | |
1718 | { | |
1719 | if (solib_end && solib_end->name) | |
02e423b9 | 1720 | solib_symbols_add (solib_end->name, from_tty, solib_end->load_addr); |
8e860359 CF |
1721 | } |
1722 | } | |
1723 | ||
1724 | static void | |
1725 | fetch_elf_core_registers (char *core_reg_sect, | |
1726 | unsigned core_reg_size, | |
1727 | int which, | |
1728 | CORE_ADDR reg_addr) | |
1729 | { | |
1730 | int r; | |
1731 | if (core_reg_size < sizeof (CONTEXT)) | |
1732 | { | |
1733 | error ("Core file register section too small (%u bytes).", core_reg_size); | |
1734 | return; | |
1735 | } | |
1736 | for (r = 0; r < NUM_REGS; r++) | |
1737 | supply_register (r, core_reg_sect + mappings[r]); | |
1738 | } | |
1739 | ||
1740 | static struct core_fns win32_elf_core_fns = | |
1741 | { | |
1742 | bfd_target_elf_flavour, | |
1743 | default_check_format, | |
1744 | default_core_sniffer, | |
1745 | fetch_elf_core_registers, | |
1746 | NULL | |
1747 | }; | |
1748 | ||
1749 | void | |
0613c401 | 1750 | _initialize_core_win32 (void) |
8e860359 CF |
1751 | { |
1752 | add_core_fns (&win32_elf_core_fns); | |
1753 | } |