Commit | Line | Data |
---|---|---|
24e60978 | 1 | /* Target-vector operations for controlling win32 child processes, for GDB. |
0a65a603 | 2 | |
1bac305b | 3 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free |
0a65a603 AC |
4 | Software Foundation, Inc. |
5 | ||
e6433c28 | 6 | Contributed by Cygnus Solutions, A Red Hat Company. |
e88c49c3 | 7 | |
24e60978 SC |
8 | This file is part of GDB. |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without eve nthe implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software | |
3a4b77d8 | 22 | Foundation, Inc., 59 Temple Place - Suite 330, |
4e052eda | 23 | Boston, MA 02111-1307, USA. */ |
24e60978 | 24 | |
dfe7f3ac | 25 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
24e60978 | 26 | |
3cee93ac | 27 | /* We assume we're being built with and will be used for cygwin. */ |
e88c49c3 | 28 | |
24e60978 SC |
29 | #include "defs.h" |
30 | #include "frame.h" /* required by inferior.h */ | |
31 | #include "inferior.h" | |
32 | #include "target.h" | |
24e60978 SC |
33 | #include "gdbcore.h" |
34 | #include "command.h" | |
fa58ee11 | 35 | #include "completer.h" |
4e052eda | 36 | #include "regcache.h" |
2a3d5645 | 37 | #include "top.h" |
403d9909 CF |
38 | #include <signal.h> |
39 | #include <sys/types.h> | |
40 | #include <fcntl.h> | |
41 | #include <stdlib.h> | |
42 | #include <windows.h> | |
43 | #include <imagehlp.h> | |
44 | #include <sys/cygwin.h> | |
cad9cd60 | 45 | |
24e60978 | 46 | #include "buildsym.h" |
1ef980b9 SC |
47 | #include "symfile.h" |
48 | #include "objfiles.h" | |
24e60978 | 49 | #include "gdb_string.h" |
fdfa3315 | 50 | #include "gdbthread.h" |
24e60978 | 51 | #include "gdbcmd.h" |
1750a5ef | 52 | #include <sys/param.h> |
1e37c281 | 53 | #include <unistd.h> |
4646aa9d | 54 | #include "exec.h" |
24e60978 | 55 | |
6c7de422 MK |
56 | #include "i386-tdep.h" |
57 | #include "i387-tdep.h" | |
58 | ||
0714f9bf | 59 | /* The ui's event loop. */ |
507f3c78 | 60 | extern int (*ui_loop_hook) (int signo); |
0714f9bf SS |
61 | |
62 | /* If we're not using the old Cygwin header file set, define the | |
63 | following which never should have been in the generic Win32 API | |
64 | headers in the first place since they were our own invention... */ | |
65 | #ifndef _GNU_H_WINDOWS_H | |
9d3789f7 | 66 | enum |
8e860359 CF |
67 | { |
68 | FLAG_TRACE_BIT = 0x100, | |
69 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
70 | }; | |
0714f9bf | 71 | #endif |
8e860359 CF |
72 | #include <sys/procfs.h> |
73 | #include <psapi.h> | |
0714f9bf | 74 | |
fa4ba8da PM |
75 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
76 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 77 | |
fa4ba8da | 78 | static unsigned dr[8]; |
87a45c96 CF |
79 | static int debug_registers_changed; |
80 | static int debug_registers_used; | |
97da3b20 | 81 | |
3cee93ac CF |
82 | /* The string sent by cygwin when it processes a signal. |
83 | FIXME: This should be in a cygwin include file. */ | |
84 | #define CYGWIN_SIGNAL_STRING "cygwin: signal" | |
85 | ||
29fe111d | 86 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 87 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
88 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
89 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
90 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 SC |
91 | |
92 | /* Forward declaration */ | |
93 | extern struct target_ops child_ops; | |
94 | ||
a14ed312 | 95 | static void child_stop (void); |
39f77062 | 96 | static int win32_child_thread_alive (ptid_t); |
a14ed312 | 97 | void child_kill_inferior (void); |
3cee93ac | 98 | |
7393af7c PM |
99 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
100 | /* Set if a signal was received from the debugged process */ | |
101 | ||
3cee93ac CF |
102 | /* Thread information structure used to track information that is |
103 | not available in gdb's thread structure. */ | |
104 | typedef struct thread_info_struct | |
3a4b77d8 JM |
105 | { |
106 | struct thread_info_struct *next; | |
107 | DWORD id; | |
108 | HANDLE h; | |
109 | char *name; | |
110 | int suspend_count; | |
3ade5333 | 111 | int reload_context; |
3a4b77d8 | 112 | CONTEXT context; |
1e37c281 | 113 | STACKFRAME sf; |
8e860359 CF |
114 | } |
115 | thread_info; | |
1e37c281 | 116 | |
29fe111d | 117 | static thread_info thread_head; |
24e60978 | 118 | |
24e60978 SC |
119 | /* The process and thread handles for the above context. */ |
120 | ||
3cee93ac CF |
121 | static DEBUG_EVENT current_event; /* The current debug event from |
122 | WaitForDebugEvent */ | |
123 | static HANDLE current_process_handle; /* Currently executing process */ | |
124 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 125 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 SC |
126 | |
127 | /* Counts of things. */ | |
128 | static int exception_count = 0; | |
129 | static int event_count = 0; | |
dfe7f3ac | 130 | static int saw_create; |
24e60978 SC |
131 | |
132 | /* User options. */ | |
133 | static int new_console = 0; | |
1e37c281 | 134 | static int new_group = 1; |
dfe7f3ac CF |
135 | static int debug_exec = 0; /* show execution */ |
136 | static int debug_events = 0; /* show events from kernel */ | |
137 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 138 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
139 | static int useshell = 0; /* use shell for subprocesses */ |
140 | ||
24e60978 | 141 | /* This vector maps GDB's idea of a register's number into an address |
3cee93ac | 142 | in the win32 exception context vector. |
24e60978 | 143 | |
3cee93ac | 144 | It also contains the bit mask needed to load the register in question. |
24e60978 SC |
145 | |
146 | One day we could read a reg, we could inspect the context we | |
147 | already have loaded, if it doesn't have the bit set that we need, | |
148 | we read that set of registers in using GetThreadContext. If the | |
149 | context already contains what we need, we just unpack it. Then to | |
150 | write a register, first we have to ensure that the context contains | |
151 | the other regs of the group, and then we copy the info in and set | |
152 | out bit. */ | |
153 | ||
3cee93ac CF |
154 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) |
155 | static const int mappings[] = | |
24e60978 | 156 | { |
3a4b77d8 JM |
157 | context_offset (Eax), |
158 | context_offset (Ecx), | |
159 | context_offset (Edx), | |
160 | context_offset (Ebx), | |
161 | context_offset (Esp), | |
162 | context_offset (Ebp), | |
163 | context_offset (Esi), | |
164 | context_offset (Edi), | |
165 | context_offset (Eip), | |
166 | context_offset (EFlags), | |
167 | context_offset (SegCs), | |
168 | context_offset (SegSs), | |
169 | context_offset (SegDs), | |
170 | context_offset (SegEs), | |
171 | context_offset (SegFs), | |
172 | context_offset (SegGs), | |
173 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
174 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
175 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
176 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
177 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
178 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
179 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
180 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
1e37c281 JM |
181 | context_offset (FloatSave.ControlWord), |
182 | context_offset (FloatSave.StatusWord), | |
183 | context_offset (FloatSave.TagWord), | |
184 | context_offset (FloatSave.ErrorSelector), | |
185 | context_offset (FloatSave.ErrorOffset), | |
186 | context_offset (FloatSave.DataSelector), | |
187 | context_offset (FloatSave.DataOffset), | |
d3a09475 | 188 | context_offset (FloatSave.ErrorSelector) |
97da3b20 | 189 | /* XMM0-7 */ , |
441532d7 PM |
190 | context_offset (ExtendedRegisters[10*16]), |
191 | context_offset (ExtendedRegisters[11*16]), | |
192 | context_offset (ExtendedRegisters[12*16]), | |
193 | context_offset (ExtendedRegisters[13*16]), | |
194 | context_offset (ExtendedRegisters[14*16]), | |
195 | context_offset (ExtendedRegisters[15*16]), | |
196 | context_offset (ExtendedRegisters[16*16]), | |
197 | context_offset (ExtendedRegisters[17*16]), | |
198 | /* MXCSR */ | |
199 | context_offset (ExtendedRegisters[24]) | |
24e60978 SC |
200 | }; |
201 | ||
d3a09475 JM |
202 | #undef context_offset |
203 | ||
24e60978 SC |
204 | /* This vector maps the target's idea of an exception (extracted |
205 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
206 | ||
207 | struct xlate_exception | |
208 | { | |
209 | int them; | |
210 | enum target_signal us; | |
211 | }; | |
212 | ||
24e60978 SC |
213 | static const struct xlate_exception |
214 | xlate[] = | |
215 | { | |
216 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 217 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
218 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
219 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
220 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
7393af7c | 221 | {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE}, |
24e60978 SC |
222 | {-1, -1}}; |
223 | ||
fa4ba8da PM |
224 | static void |
225 | check (BOOL ok, const char *file, int line) | |
226 | { | |
227 | if (!ok) | |
dfe7f3ac | 228 | printf_filtered ("error return %s:%d was %lu\n", file, line, |
fa4ba8da PM |
229 | GetLastError ()); |
230 | } | |
231 | ||
3cee93ac CF |
232 | /* Find a thread record given a thread id. |
233 | If get_context then also retrieve the context for this | |
234 | thread. */ | |
235 | static thread_info * | |
236 | thread_rec (DWORD id, int get_context) | |
24e60978 | 237 | { |
3cee93ac CF |
238 | thread_info *th; |
239 | ||
3a4b77d8 | 240 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
241 | if (th->id == id) |
242 | { | |
243 | if (!th->suspend_count && get_context) | |
244 | { | |
8a892701 | 245 | if (get_context > 0 && id != current_event.dwThreadId) |
3cee93ac CF |
246 | th->suspend_count = SuspendThread (th->h) + 1; |
247 | else if (get_context < 0) | |
248 | th->suspend_count = -1; | |
3ade5333 | 249 | th->reload_context = 1; |
3cee93ac CF |
250 | } |
251 | return th; | |
252 | } | |
253 | ||
254 | return NULL; | |
255 | } | |
256 | ||
257 | /* Add a thread to the thread list */ | |
258 | static thread_info * | |
3a4b77d8 | 259 | child_add_thread (DWORD id, HANDLE h) |
3cee93ac CF |
260 | { |
261 | thread_info *th; | |
262 | ||
263 | if ((th = thread_rec (id, FALSE))) | |
264 | return th; | |
265 | ||
266 | th = (thread_info *) xmalloc (sizeof (*th)); | |
3a4b77d8 | 267 | memset (th, 0, sizeof (*th)); |
3cee93ac CF |
268 | th->id = id; |
269 | th->h = h; | |
270 | th->next = thread_head.next; | |
271 | thread_head.next = th; | |
39f77062 | 272 | add_thread (pid_to_ptid (id)); |
dfe7f3ac | 273 | /* Set the debug registers for the new thread in they are used. */ |
fa4ba8da PM |
274 | if (debug_registers_used) |
275 | { | |
276 | /* Only change the value of the debug registers. */ | |
277 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
278 | CHECK (GetThreadContext (th->h, &th->context)); | |
279 | th->context.Dr0 = dr[0]; | |
280 | th->context.Dr1 = dr[1]; | |
281 | th->context.Dr2 = dr[2]; | |
282 | th->context.Dr3 = dr[3]; | |
283 | /* th->context.Dr6 = dr[6]; | |
284 | FIXME: should we set dr6 also ?? */ | |
285 | th->context.Dr7 = dr[7]; | |
286 | CHECK (SetThreadContext (th->h, &th->context)); | |
287 | th->context.ContextFlags = 0; | |
288 | } | |
3cee93ac | 289 | return th; |
24e60978 SC |
290 | } |
291 | ||
3cee93ac CF |
292 | /* Clear out any old thread list and reintialize it to a |
293 | pristine state. */ | |
24e60978 | 294 | static void |
fba45db2 | 295 | child_init_thread_list (void) |
24e60978 | 296 | { |
3cee93ac CF |
297 | thread_info *th = &thread_head; |
298 | ||
299 | DEBUG_EVENTS (("gdb: child_init_thread_list\n")); | |
300 | init_thread_list (); | |
301 | while (th->next != NULL) | |
24e60978 | 302 | { |
3cee93ac CF |
303 | thread_info *here = th->next; |
304 | th->next = here->next; | |
305 | (void) CloseHandle (here->h); | |
b8c9b27d | 306 | xfree (here); |
24e60978 | 307 | } |
3cee93ac CF |
308 | } |
309 | ||
310 | /* Delete a thread from the list of threads */ | |
311 | static void | |
312 | child_delete_thread (DWORD id) | |
313 | { | |
314 | thread_info *th; | |
315 | ||
316 | if (info_verbose) | |
39f77062 KB |
317 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id))); |
318 | delete_thread (pid_to_ptid (id)); | |
3cee93ac CF |
319 | |
320 | for (th = &thread_head; | |
321 | th->next != NULL && th->next->id != id; | |
322 | th = th->next) | |
323 | continue; | |
324 | ||
325 | if (th->next != NULL) | |
24e60978 | 326 | { |
3cee93ac CF |
327 | thread_info *here = th->next; |
328 | th->next = here->next; | |
329 | CloseHandle (here->h); | |
b8c9b27d | 330 | xfree (here); |
24e60978 SC |
331 | } |
332 | } | |
333 | ||
3cee93ac CF |
334 | static void |
335 | do_child_fetch_inferior_registers (int r) | |
24e60978 | 336 | { |
1e37c281 JM |
337 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
338 | long l; | |
6c7de422 | 339 | |
3ade5333 | 340 | if (!current_thread) |
d6dc8049 CF |
341 | return; /* Windows sometimes uses a non-existent thread id in its |
342 | events */ | |
3ade5333 CF |
343 | |
344 | if (current_thread->reload_context) | |
345 | { | |
346 | thread_info *th = current_thread; | |
347 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
348 | GetThreadContext (th->h, &th->context); | |
349 | /* Copy dr values from that thread. */ | |
350 | dr[0] = th->context.Dr0; | |
351 | dr[1] = th->context.Dr1; | |
352 | dr[2] = th->context.Dr2; | |
353 | dr[3] = th->context.Dr3; | |
354 | dr[6] = th->context.Dr6; | |
355 | dr[7] = th->context.Dr7; | |
356 | current_thread->reload_context = 0; | |
357 | } | |
358 | ||
6c7de422 MK |
359 | #define I387_ST0_REGNUM I386_ST0_REGNUM |
360 | ||
361 | if (r == I387_FISEG_REGNUM) | |
1e37c281 | 362 | { |
8e860359 | 363 | l = *((long *) context_offset) & 0xffff; |
1e37c281 JM |
364 | supply_register (r, (char *) &l); |
365 | } | |
6c7de422 | 366 | else if (r == I387_FOP_REGNUM) |
1e37c281 | 367 | { |
8e860359 | 368 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
1e37c281 JM |
369 | supply_register (r, (char *) &l); |
370 | } | |
371 | else if (r >= 0) | |
d3a09475 | 372 | supply_register (r, context_offset); |
3cee93ac | 373 | else |
24e60978 SC |
374 | { |
375 | for (r = 0; r < NUM_REGS; r++) | |
3cee93ac | 376 | do_child_fetch_inferior_registers (r); |
24e60978 | 377 | } |
6c7de422 MK |
378 | |
379 | #undef I387_ST0_REGNUM | |
3cee93ac CF |
380 | } |
381 | ||
382 | static void | |
383 | child_fetch_inferior_registers (int r) | |
384 | { | |
39f77062 | 385 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
d6dc8049 CF |
386 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
387 | thread id in its events */ | |
3ade5333 CF |
388 | if (current_thread) |
389 | do_child_fetch_inferior_registers (r); | |
3cee93ac CF |
390 | } |
391 | ||
392 | static void | |
393 | do_child_store_inferior_registers (int r) | |
394 | { | |
3ade5333 | 395 | if (!current_thread) |
d6dc8049 | 396 | /* Windows sometimes uses a non-existent thread id in its events */; |
3ade5333 | 397 | else if (r >= 0) |
baa93fa6 | 398 | regcache_collect (r, ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
399 | else |
400 | { | |
3cee93ac CF |
401 | for (r = 0; r < NUM_REGS; r++) |
402 | do_child_store_inferior_registers (r); | |
24e60978 SC |
403 | } |
404 | } | |
405 | ||
3cee93ac CF |
406 | /* Store a new register value into the current thread context */ |
407 | static void | |
408 | child_store_inferior_registers (int r) | |
409 | { | |
39f77062 | 410 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
d6dc8049 CF |
411 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
412 | thread id in its events */ | |
3ade5333 CF |
413 | if (current_thread) |
414 | do_child_store_inferior_registers (r); | |
3cee93ac | 415 | } |
24e60978 | 416 | |
1e37c281 JM |
417 | static int psapi_loaded = 0; |
418 | static HMODULE psapi_module_handle = NULL; | |
8e860359 CF |
419 | static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, LPDWORD) = NULL; |
420 | static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD) = NULL; | |
421 | static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD) = NULL; | |
1e37c281 | 422 | |
3bccec63 | 423 | int |
8e860359 | 424 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) |
1e37c281 JM |
425 | { |
426 | DWORD len; | |
427 | MODULEINFO mi; | |
428 | int i; | |
8e860359 CF |
429 | HMODULE dh_buf[1]; |
430 | HMODULE *DllHandle = dh_buf; | |
1e37c281 JM |
431 | DWORD cbNeeded; |
432 | BOOL ok; | |
433 | ||
434 | if (!psapi_loaded || | |
8e860359 CF |
435 | psapi_EnumProcessModules == NULL || |
436 | psapi_GetModuleInformation == NULL || | |
437 | psapi_GetModuleFileNameExA == NULL) | |
1e37c281 | 438 | { |
8e860359 CF |
439 | if (psapi_loaded) |
440 | goto failed; | |
1e37c281 JM |
441 | psapi_loaded = 1; |
442 | psapi_module_handle = LoadLibrary ("psapi.dll"); | |
443 | if (!psapi_module_handle) | |
8e860359 CF |
444 | { |
445 | /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */ | |
446 | goto failed; | |
447 | } | |
448 | psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules"); | |
1e37c281 JM |
449 | psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation"); |
450 | psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, | |
8e860359 CF |
451 | "GetModuleFileNameExA"); |
452 | if (psapi_EnumProcessModules == NULL || | |
453 | psapi_GetModuleInformation == NULL || | |
454 | psapi_GetModuleFileNameExA == NULL) | |
1e37c281 JM |
455 | goto failed; |
456 | } | |
457 | ||
458 | cbNeeded = 0; | |
459 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
460 | DllHandle, |
461 | sizeof (HMODULE), | |
462 | &cbNeeded); | |
1e37c281 JM |
463 | |
464 | if (!ok || !cbNeeded) | |
465 | goto failed; | |
466 | ||
8e860359 | 467 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
468 | if (!DllHandle) |
469 | goto failed; | |
470 | ||
471 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
472 | DllHandle, |
473 | cbNeeded, | |
474 | &cbNeeded); | |
1e37c281 JM |
475 | if (!ok) |
476 | goto failed; | |
477 | ||
29fe111d | 478 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 JM |
479 | { |
480 | if (!(*psapi_GetModuleInformation) (current_process_handle, | |
8e860359 CF |
481 | DllHandle[i], |
482 | &mi, | |
483 | sizeof (mi))) | |
1e37c281 JM |
484 | error ("Can't get module info"); |
485 | ||
486 | len = (*psapi_GetModuleFileNameExA) (current_process_handle, | |
8e860359 CF |
487 | DllHandle[i], |
488 | dll_name_ret, | |
489 | MAX_PATH); | |
1e37c281 | 490 | if (len == 0) |
5633f842 | 491 | error ("Error getting dll name: %u\n", (unsigned) GetLastError ()); |
1e37c281 JM |
492 | |
493 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
494 | return 1; | |
495 | } | |
496 | ||
497 | failed: | |
498 | dll_name_ret[0] = '\0'; | |
499 | return 0; | |
500 | } | |
501 | ||
450005e7 CF |
502 | /* Encapsulate the information required in a call to |
503 | symbol_file_add_args */ | |
8a892701 CF |
504 | struct safe_symbol_file_add_args |
505 | { | |
506 | char *name; | |
507 | int from_tty; | |
508 | struct section_addr_info *addrs; | |
509 | int mainline; | |
510 | int flags; | |
7c5c87c0 | 511 | struct ui_file *err, *out; |
8a892701 CF |
512 | struct objfile *ret; |
513 | }; | |
514 | ||
02e423b9 CF |
515 | /* Maintain a linked list of "so" information. */ |
516 | struct so_stuff | |
517 | { | |
d3ff4a77 | 518 | struct so_stuff *next; |
02e423b9 | 519 | DWORD load_addr; |
5633f842 | 520 | DWORD end_addr; |
7470a420 | 521 | int loaded; |
d3ff4a77 | 522 | struct objfile *objfile; |
7470a420 CF |
523 | char name[1]; |
524 | } solib_start, *solib_end; | |
02e423b9 | 525 | |
450005e7 CF |
526 | /* Call symbol_file_add with stderr redirected. We don't care if there |
527 | are errors. */ | |
8a892701 CF |
528 | static int |
529 | safe_symbol_file_add_stub (void *argv) | |
530 | { | |
531 | #define p ((struct safe_symbol_file_add_args *)argv) | |
fefd0a37 | 532 | struct so_stuff *so = &solib_start; |
02e423b9 CF |
533 | |
534 | while ((so = so->next)) | |
7470a420 | 535 | if (so->loaded && strcasecmp (so->name, p->name) == 0) |
02e423b9 | 536 | return 0; |
8a892701 CF |
537 | p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags); |
538 | return !!p->ret; | |
539 | #undef p | |
540 | } | |
541 | ||
450005e7 | 542 | /* Restore gdb's stderr after calling symbol_file_add */ |
8a892701 | 543 | static void |
7c5c87c0 | 544 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 545 | { |
8e860359 | 546 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 547 | gdb_flush (gdb_stderr); |
7c5c87c0 | 548 | gdb_flush (gdb_stdout); |
d3ff4a77 | 549 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 550 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 551 | gdb_stderr = sp->err; |
9d3789f7 | 552 | gdb_stdout = sp->out; |
8e860359 | 553 | #undef sp |
8a892701 CF |
554 | } |
555 | ||
450005e7 | 556 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
557 | static struct objfile * |
558 | safe_symbol_file_add (char *name, int from_tty, | |
559 | struct section_addr_info *addrs, | |
560 | int mainline, int flags) | |
8a892701 CF |
561 | { |
562 | struct safe_symbol_file_add_args p; | |
563 | struct cleanup *cleanup; | |
564 | ||
7c5c87c0 | 565 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 566 | |
7c5c87c0 CF |
567 | p.err = gdb_stderr; |
568 | p.out = gdb_stdout; | |
450005e7 | 569 | gdb_flush (gdb_stderr); |
7c5c87c0 | 570 | gdb_flush (gdb_stdout); |
d3ff4a77 | 571 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 572 | gdb_stdout = ui_file_new (); |
8a892701 CF |
573 | p.name = name; |
574 | p.from_tty = from_tty; | |
575 | p.addrs = addrs; | |
576 | p.mainline = mainline; | |
577 | p.flags = flags; | |
578 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
579 | ||
580 | do_cleanups (cleanup); | |
581 | return p.ret; | |
582 | } | |
583 | ||
450005e7 CF |
584 | /* Remember the maximum DLL length for printing in info dll command. */ |
585 | int max_dll_name_len; | |
586 | ||
8e860359 CF |
587 | static void |
588 | register_loaded_dll (const char *name, DWORD load_addr) | |
589 | { | |
590 | struct so_stuff *so; | |
7470a420 | 591 | char ppath[MAX_PATH + 1]; |
3f8ad85b CF |
592 | char buf[MAX_PATH + 1]; |
593 | char cwd[MAX_PATH + 1]; | |
594 | char *p; | |
595 | WIN32_FIND_DATA w32_fd; | |
596 | HANDLE h = FindFirstFile(name, &w32_fd); | |
5633f842 | 597 | MEMORY_BASIC_INFORMATION m; |
3f8ad85b CF |
598 | size_t len; |
599 | ||
6badb179 CF |
600 | if (h == INVALID_HANDLE_VALUE) |
601 | strcpy (buf, name); | |
602 | else | |
3f8ad85b | 603 | { |
c914e0cc CF |
604 | FindClose (h); |
605 | strcpy (buf, name); | |
606 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
607 | { | |
608 | p = strrchr (buf, '\\'); | |
609 | if (p) | |
610 | p[1] = '\0'; | |
611 | SetCurrentDirectory (buf); | |
612 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
613 | SetCurrentDirectory (cwd); | |
614 | } | |
3f8ad85b CF |
615 | } |
616 | ||
617 | cygwin_conv_to_posix_path (buf, ppath); | |
7470a420 CF |
618 | so = (struct so_stuff *) xmalloc (sizeof (struct so_stuff) + strlen (ppath) + 8 + 1); |
619 | so->loaded = 0; | |
8e860359 | 620 | so->load_addr = load_addr; |
e325dcec CF |
621 | if (VirtualQueryEx (current_process_handle, (void *) load_addr, &m, |
622 | sizeof (m))) | |
5633f842 CF |
623 | so->end_addr = (DWORD) m.AllocationBase + m.RegionSize; |
624 | else | |
625 | so->end_addr = load_addr + 0x2000; /* completely arbitrary */ | |
626 | ||
d3ff4a77 CF |
627 | so->next = NULL; |
628 | so->objfile = NULL; | |
7470a420 | 629 | strcpy (so->name, ppath); |
8e860359 CF |
630 | |
631 | solib_end->next = so; | |
632 | solib_end = so; | |
3f8ad85b CF |
633 | len = strlen (ppath); |
634 | if (len > max_dll_name_len) | |
635 | max_dll_name_len = len; | |
8e860359 CF |
636 | } |
637 | ||
dfe7f3ac CF |
638 | char * |
639 | get_image_name (HANDLE h, void *address, int unicode) | |
640 | { | |
641 | static char buf[(2 * MAX_PATH) + 1]; | |
642 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
643 | char *address_ptr; | |
644 | int len = 0; | |
645 | char b[2]; | |
646 | DWORD done; | |
647 | ||
648 | /* Attempt to read the name of the dll that was detected. | |
649 | This is documented to work only when actively debugging | |
650 | a program. It will not work for attached processes. */ | |
651 | if (address == NULL) | |
652 | return NULL; | |
653 | ||
dfe7f3ac CF |
654 | /* See if we could read the address of a string, and that the |
655 | address isn't null. */ | |
9f476a01 | 656 | if (!ReadProcessMemory (h, address, &address_ptr, sizeof (address_ptr), &done) |
6f17862b | 657 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
658 | return NULL; |
659 | ||
660 | /* Find the length of the string */ | |
6f17862b CF |
661 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
662 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
663 | continue; | |
dfe7f3ac CF |
664 | |
665 | if (!unicode) | |
666 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
667 | else | |
668 | { | |
669 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
670 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
671 | &done); | |
672 | ||
673 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
674 | } | |
675 | ||
676 | return buf; | |
677 | } | |
678 | ||
24e60978 SC |
679 | /* Wait for child to do something. Return pid of child, or -1 in case |
680 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 681 | static int |
0a65a603 | 682 | handle_load_dll (void *dummy) |
24e60978 | 683 | { |
3a4b77d8 | 684 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
3cee93ac | 685 | char dll_buf[MAX_PATH + 1]; |
450005e7 | 686 | char *dll_name = NULL; |
450005e7 | 687 | char *p; |
3cee93ac | 688 | |
3a4b77d8 | 689 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 690 | |
1e37c281 | 691 | if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf)) |
8e860359 | 692 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 693 | |
1e37c281 | 694 | dll_name = dll_buf; |
24e60978 | 695 | |
dfe7f3ac CF |
696 | if (*dll_name == '\0') |
697 | dll_name = get_image_name (current_process_handle, event->lpImageName, event->fUnicode); | |
3cee93ac CF |
698 | if (!dll_name) |
699 | return 1; | |
700 | ||
8e860359 | 701 | register_loaded_dll (dll_name, (DWORD) event->lpBaseOfDll + 0x1000); |
450005e7 CF |
702 | |
703 | return 1; | |
704 | } | |
705 | ||
d3ff4a77 | 706 | static int |
0a65a603 | 707 | handle_unload_dll (void *dummy) |
d3ff4a77 CF |
708 | { |
709 | DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll + 0x1000; | |
710 | struct so_stuff *so; | |
711 | ||
712 | for (so = &solib_start; so->next != NULL; so = so->next) | |
713 | if (so->next->load_addr == lpBaseOfDll) | |
714 | { | |
715 | struct so_stuff *sodel = so->next; | |
716 | so->next = sodel->next; | |
717 | if (!so->next) | |
718 | solib_end = so; | |
719 | if (sodel->objfile) | |
720 | free_objfile (sodel->objfile); | |
721 | xfree(sodel); | |
722 | return 1; | |
723 | } | |
724 | error ("Error: dll starting at 0x%lx not found.\n", (DWORD) lpBaseOfDll); | |
725 | ||
726 | return 0; | |
727 | } | |
728 | ||
5633f842 CF |
729 | char * |
730 | solib_address (CORE_ADDR address) | |
731 | { | |
732 | struct so_stuff *so; | |
733 | for (so = &solib_start; so->next != NULL; so = so->next) | |
734 | if (address >= so->load_addr && address <= so->end_addr) | |
735 | return so->name; | |
736 | return NULL; | |
737 | } | |
738 | ||
450005e7 CF |
739 | /* Return name of last loaded DLL. */ |
740 | char * | |
0a65a603 | 741 | child_solib_loaded_library_pathname (int pid) |
450005e7 | 742 | { |
8e860359 | 743 | return !solib_end || !solib_end->name[0] ? NULL : solib_end->name; |
450005e7 CF |
744 | } |
745 | ||
746 | /* Clear list of loaded DLLs. */ | |
747 | void | |
748 | child_clear_solibs (void) | |
749 | { | |
750 | struct so_stuff *so, *so1 = solib_start.next; | |
751 | ||
752 | while ((so = so1) != NULL) | |
753 | { | |
754 | so1 = so->next; | |
b8c9b27d | 755 | xfree (so); |
450005e7 CF |
756 | } |
757 | ||
758 | solib_start.next = NULL; | |
d3ff4a77 | 759 | solib_start.objfile = NULL; |
450005e7 CF |
760 | solib_end = &solib_start; |
761 | max_dll_name_len = sizeof ("DLL Name") - 1; | |
762 | } | |
295732ea | 763 | |
786b8124 CF |
764 | /* Get the loaded address of all sections, given that .text was loaded |
765 | at text_load. Assumes that all sections are subject to the same | |
766 | relocation offset. Returns NULL if problems occur or if the | |
767 | sections were not relocated. */ | |
768 | ||
769 | static struct section_addr_info * | |
770 | get_relocated_section_addrs (bfd *abfd, CORE_ADDR text_load) | |
771 | { | |
772 | struct section_addr_info *result = NULL; | |
773 | int section_count = bfd_count_sections (abfd); | |
774 | asection *text_section = bfd_get_section_by_name (abfd, ".text"); | |
775 | CORE_ADDR text_vma; | |
776 | ||
777 | if (!text_section) | |
778 | { | |
779 | /* Couldn't get the .text section. Weird. */ | |
780 | } | |
781 | ||
782 | else if (text_load == (text_vma = bfd_get_section_vma (abfd, text_section))) | |
783 | { | |
784 | /* DLL wasn't relocated. */ | |
785 | } | |
786 | ||
787 | else | |
788 | { | |
789 | /* Figure out all sections' loaded addresses. The offset here is | |
790 | such that taking a bfd_get_section_vma() result and adding | |
791 | offset will give the real load address of the section. */ | |
450005e7 | 792 | |
786b8124 CF |
793 | CORE_ADDR offset = text_load - text_vma; |
794 | ||
795 | struct section_table *table_start = NULL; | |
796 | struct section_table *table_end = NULL; | |
797 | struct section_table *iter = NULL; | |
798 | ||
799 | build_section_table (abfd, &table_start, &table_end); | |
800 | ||
801 | for (iter = table_start; iter < table_end; ++iter) | |
802 | { | |
803 | /* Relocated addresses. */ | |
804 | iter->addr += offset; | |
805 | iter->endaddr += offset; | |
806 | } | |
807 | ||
808 | result = build_section_addr_info_from_section_table (table_start, | |
809 | table_end); | |
810 | ||
811 | xfree (table_start); | |
812 | } | |
813 | ||
814 | return result; | |
815 | } | |
295732ea | 816 | |
450005e7 | 817 | /* Add DLL symbol information. */ |
d3ff4a77 | 818 | static struct objfile * |
02e423b9 | 819 | solib_symbols_add (char *name, int from_tty, CORE_ADDR load_addr) |
450005e7 | 820 | { |
9f476a01 | 821 | struct section_addr_info *addrs = NULL; |
786b8124 CF |
822 | static struct objfile *result = NULL; |
823 | bfd *abfd = NULL; | |
450005e7 | 824 | |
3cee93ac CF |
825 | /* The symbols in a dll are offset by 0x1000, which is the |
826 | the offset from 0 of the first byte in an image - because | |
8a892701 | 827 | of the file header and the section alignment. */ |
3cee93ac | 828 | |
8e860359 | 829 | if (!name || !name[0]) |
d3ff4a77 | 830 | return NULL; |
450005e7 | 831 | |
786b8124 CF |
832 | abfd = bfd_openr (name, "pei-i386"); |
833 | ||
834 | if (!abfd) | |
835 | { | |
836 | /* pei failed - try pe */ | |
837 | abfd = bfd_openr (name, "pe-i386"); | |
838 | } | |
839 | ||
840 | if (abfd) | |
841 | { | |
842 | if (bfd_check_format (abfd, bfd_object)) | |
843 | { | |
9f476a01 | 844 | addrs = get_relocated_section_addrs (abfd, load_addr); |
786b8124 CF |
845 | } |
846 | ||
847 | bfd_close (abfd); | |
848 | } | |
849 | ||
9f476a01 | 850 | if (addrs) |
786b8124 | 851 | { |
9f476a01 CF |
852 | result = safe_symbol_file_add (name, from_tty, addrs, 0, OBJF_SHARED); |
853 | free_section_addr_info (addrs); | |
786b8124 | 854 | } |
786b8124 CF |
855 | else |
856 | { | |
857 | /* Fallback on handling just the .text section. */ | |
a39a16c4 | 858 | struct cleanup *my_cleanups; |
786b8124 | 859 | |
9f476a01 CF |
860 | addrs = alloc_section_addr_info (1); |
861 | my_cleanups = make_cleanup (xfree, addrs); | |
862 | addrs->other[0].name = ".text"; | |
863 | addrs->other[0].addr = load_addr; | |
786b8124 | 864 | |
9f476a01 | 865 | result = safe_symbol_file_add (name, from_tty, addrs, 0, OBJF_SHARED); |
a39a16c4 | 866 | do_cleanups (my_cleanups); |
786b8124 CF |
867 | } |
868 | ||
869 | return result; | |
450005e7 CF |
870 | } |
871 | ||
872 | /* Load DLL symbol info. */ | |
873 | void | |
7470a420 | 874 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 875 | { |
8e860359 | 876 | int n; |
450005e7 | 877 | dont_repeat (); |
8e860359 | 878 | |
450005e7 CF |
879 | if (args == NULL) |
880 | error ("dll-symbols requires a file name"); | |
881 | ||
8e860359 CF |
882 | n = strlen (args); |
883 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
884 | { | |
885 | char *newargs = (char *) alloca (n + 4 + 1); | |
886 | strcpy (newargs, args); | |
887 | strcat (newargs, ".dll"); | |
888 | args = newargs; | |
889 | } | |
890 | ||
7470a420 | 891 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 892 | } |
450005e7 CF |
893 | |
894 | /* List currently loaded DLLs. */ | |
895 | void | |
0a65a603 | 896 | info_dll_command (char *ignore, int from_tty) |
450005e7 CF |
897 | { |
898 | struct so_stuff *so = &solib_start; | |
899 | ||
900 | if (!so->next) | |
901 | return; | |
902 | ||
dfe7f3ac | 903 | printf_filtered ("%*s Load Address\n", -max_dll_name_len, "DLL Name"); |
450005e7 | 904 | while ((so = so->next) != NULL) |
7c5c87c0 | 905 | printf_filtered ("%*s %08lx\n", -max_dll_name_len, so->name, so->load_addr); |
450005e7 CF |
906 | |
907 | return; | |
24e60978 SC |
908 | } |
909 | ||
3cee93ac CF |
910 | /* Handle DEBUG_STRING output from child process. |
911 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
912 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
913 | static int | |
914 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
915 | { | |
916 | char *s; | |
917 | int gotasig = FALSE; | |
918 | ||
919 | if (!target_read_string | |
3a4b77d8 | 920 | ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0) |
3cee93ac CF |
921 | || !s || !*s) |
922 | return gotasig; | |
923 | ||
d3a09475 | 924 | if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0) |
3cee93ac | 925 | { |
d3a09475 | 926 | if (strncmp (s, "cYg", 3) != 0) |
29fe111d | 927 | warning ("%s", s); |
3cee93ac | 928 | } |
d3a09475 | 929 | else |
3cee93ac CF |
930 | { |
931 | char *p; | |
1e37c281 JM |
932 | int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
933 | gotasig = target_signal_from_host (sig); | |
0714f9bf SS |
934 | ourstatus->value.sig = gotasig; |
935 | if (gotasig) | |
3cee93ac CF |
936 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
937 | } | |
938 | ||
b8c9b27d | 939 | xfree (s); |
3cee93ac CF |
940 | return gotasig; |
941 | } | |
24e60978 | 942 | |
c1748f97 PM |
943 | static int |
944 | display_selector (HANDLE thread, DWORD sel) | |
945 | { | |
946 | LDT_ENTRY info; | |
947 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
948 | { | |
949 | int base, limit; | |
950 | printf_filtered ("0x%03lx: ", sel); | |
951 | if (!info.HighWord.Bits.Pres) | |
baa93fa6 CF |
952 | { |
953 | puts_filtered ("Segment not present\n"); | |
954 | return 0; | |
955 | } | |
c1748f97 PM |
956 | base = (info.HighWord.Bits.BaseHi << 24) + |
957 | (info.HighWord.Bits.BaseMid << 16) | |
958 | + info.BaseLow; | |
959 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
960 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 961 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
962 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
963 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 964 | puts_filtered(" 32-bit "); |
c1748f97 | 965 | else |
baa93fa6 | 966 | puts_filtered(" 16-bit "); |
c1748f97 PM |
967 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
968 | { | |
969 | case 0: | |
baa93fa6 CF |
970 | puts_filtered ("Data (Read-Only, Exp-up"); |
971 | break; | |
c1748f97 | 972 | case 1: |
baa93fa6 CF |
973 | puts_filtered ("Data (Read/Write, Exp-up"); |
974 | break; | |
c1748f97 | 975 | case 2: |
baa93fa6 CF |
976 | puts_filtered ("Unused segment ("); |
977 | break; | |
c1748f97 | 978 | case 3: |
baa93fa6 CF |
979 | puts_filtered ("Data (Read/Write, Exp-down"); |
980 | break; | |
c1748f97 | 981 | case 4: |
baa93fa6 CF |
982 | puts_filtered ("Code (Exec-Only, N.Conf"); |
983 | break; | |
c1748f97 | 984 | case 5: |
baa93fa6 | 985 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
986 | break; |
987 | case 6: | |
baa93fa6 | 988 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
989 | break; |
990 | case 7: | |
baa93fa6 | 991 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
992 | break; |
993 | default: | |
994 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
995 | } | |
996 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 997 | puts_filtered(", N.Acc"); |
c1748f97 PM |
998 | puts_filtered (")\n"); |
999 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1000 | puts_filtered("System selector "); | |
1001 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
1002 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 1003 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1004 | else |
1005 | puts_filtered ("Byte granular.\n"); | |
1006 | return 1; | |
1007 | } | |
1008 | else | |
1009 | { | |
1010 | printf_filtered ("Invalid selector 0x%lx.\n",sel); | |
1011 | return 0; | |
1012 | } | |
1013 | } | |
1014 | ||
1015 | static void | |
1016 | display_selectors (char * args, int from_tty) | |
1017 | { | |
1018 | if (!current_thread) | |
1019 | { | |
1020 | puts_filtered ("Impossible to display selectors now.\n"); | |
1021 | return; | |
1022 | } | |
1023 | if (!args) | |
1024 | { | |
1025 | ||
1026 | puts_filtered ("Selector $cs\n"); | |
1027 | display_selector (current_thread->h, | |
baa93fa6 | 1028 | current_thread->context.SegCs); |
c1748f97 PM |
1029 | puts_filtered ("Selector $ds\n"); |
1030 | display_selector (current_thread->h, | |
baa93fa6 | 1031 | current_thread->context.SegDs); |
c1748f97 PM |
1032 | puts_filtered ("Selector $es\n"); |
1033 | display_selector (current_thread->h, | |
baa93fa6 | 1034 | current_thread->context.SegEs); |
c1748f97 PM |
1035 | puts_filtered ("Selector $ss\n"); |
1036 | display_selector (current_thread->h, | |
baa93fa6 | 1037 | current_thread->context.SegSs); |
c1748f97 PM |
1038 | puts_filtered ("Selector $fs\n"); |
1039 | display_selector (current_thread->h, | |
1040 | current_thread->context.SegFs); | |
1041 | puts_filtered ("Selector $gs\n"); | |
1042 | display_selector (current_thread->h, | |
baa93fa6 | 1043 | current_thread->context.SegGs); |
c1748f97 PM |
1044 | } |
1045 | else | |
1046 | { | |
1047 | int sel; | |
1048 | sel = parse_and_eval_long (args); | |
1049 | printf_filtered ("Selector \"%s\"\n",args); | |
1050 | display_selector (current_thread->h, sel); | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | static struct cmd_list_element *info_w32_cmdlist = NULL; | |
1055 | ||
1056 | static void | |
1057 | info_w32_command (char *args, int from_tty) | |
1058 | { | |
1059 | help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout); | |
1060 | } | |
1061 | ||
1062 | ||
7393af7c | 1063 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
4e52d31c | 1064 | printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \ |
7393af7c PM |
1065 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress) |
1066 | ||
36339ecd | 1067 | static int |
450005e7 | 1068 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1069 | { |
3cee93ac | 1070 | thread_info *th; |
29fe111d | 1071 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 1072 | |
29fe111d | 1073 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1074 | |
3cee93ac CF |
1075 | /* Record the context of the current thread */ |
1076 | th = thread_rec (current_event.dwThreadId, -1); | |
24e60978 | 1077 | |
29fe111d | 1078 | switch (code) |
24e60978 | 1079 | { |
1ef980b9 | 1080 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c PM |
1081 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
1082 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1083 | break; | |
1084 | case STATUS_STACK_OVERFLOW: | |
1085 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
1ef980b9 | 1086 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
1087 | break; |
1088 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1089 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
1090 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1091 | break; | |
1092 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1093 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
1094 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1095 | break; | |
1096 | case STATUS_FLOAT_INEXACT_RESULT: | |
1097 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
1098 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1099 | break; | |
1100 | case STATUS_FLOAT_INVALID_OPERATION: | |
1101 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1102 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1103 | break; | |
1104 | case STATUS_FLOAT_OVERFLOW: | |
1105 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1106 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1107 | break; | |
1108 | case STATUS_FLOAT_STACK_CHECK: | |
1109 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1110 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 | 1111 | break; |
3b7c8b74 | 1112 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1113 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1114 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1115 | break; | |
3b7c8b74 | 1116 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1117 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1118 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1119 | break; | |
3b7c8b74 | 1120 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1121 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
3b7c8b74 | 1122 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
3b7c8b74 | 1123 | break; |
7393af7c PM |
1124 | case STATUS_INTEGER_OVERFLOW: |
1125 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1126 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 SC |
1127 | break; |
1128 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1129 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
1ef980b9 SC |
1130 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1131 | break; | |
1132 | case DBG_CONTROL_C: | |
7393af7c | 1133 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
1ef980b9 | 1134 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1135 | break; |
1136 | case DBG_CONTROL_BREAK: | |
7393af7c | 1137 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1138 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
1ef980b9 SC |
1139 | break; |
1140 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1141 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
1ef980b9 SC |
1142 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1143 | break; | |
8227c82d | 1144 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1145 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1146 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1147 | break; | |
1148 | case EXCEPTION_PRIV_INSTRUCTION: | |
1149 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1150 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1151 | break; | |
1152 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1153 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1154 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1155 | break; | |
1ef980b9 | 1156 | default: |
02e423b9 CF |
1157 | if (current_event.u.Exception.dwFirstChance) |
1158 | return 0; | |
29fe111d | 1159 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n", |
3a4b77d8 | 1160 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
8e860359 | 1161 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress); |
24e60978 | 1162 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 1163 | break; |
24e60978 | 1164 | } |
24e60978 | 1165 | exception_count++; |
7393af7c | 1166 | last_sig = ourstatus->value.sig; |
36339ecd | 1167 | return 1; |
24e60978 SC |
1168 | } |
1169 | ||
3cee93ac CF |
1170 | /* Resume all artificially suspended threads if we are continuing |
1171 | execution */ | |
1172 | static BOOL | |
8a892701 | 1173 | child_continue (DWORD continue_status, int id) |
3cee93ac CF |
1174 | { |
1175 | int i; | |
1176 | thread_info *th; | |
1177 | BOOL res; | |
1178 | ||
7393af7c PM |
1179 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, %s);\n", |
1180 | current_event.dwProcessId, current_event.dwThreadId, | |
dfe7f3ac | 1181 | continue_status == DBG_CONTINUE ? |
7393af7c | 1182 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
0714f9bf SS |
1183 | res = ContinueDebugEvent (current_event.dwProcessId, |
1184 | current_event.dwThreadId, | |
1185 | continue_status); | |
1e37c281 | 1186 | continue_status = 0; |
0714f9bf | 1187 | if (res) |
3a4b77d8 | 1188 | for (th = &thread_head; (th = th->next) != NULL;) |
29fe111d | 1189 | if (((id == -1) || (id == (int) th->id)) && th->suspend_count) |
3cee93ac | 1190 | { |
fa4ba8da | 1191 | |
3cee93ac CF |
1192 | for (i = 0; i < th->suspend_count; i++) |
1193 | (void) ResumeThread (th->h); | |
1194 | th->suspend_count = 0; | |
fa4ba8da PM |
1195 | if (debug_registers_changed) |
1196 | { | |
3ade5333 | 1197 | /* Only change the value of the debug registers */ |
fa4ba8da PM |
1198 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; |
1199 | th->context.Dr0 = dr[0]; | |
1200 | th->context.Dr1 = dr[1]; | |
1201 | th->context.Dr2 = dr[2]; | |
1202 | th->context.Dr3 = dr[3]; | |
1203 | /* th->context.Dr6 = dr[6]; | |
dfe7f3ac | 1204 | FIXME: should we set dr6 also ?? */ |
fa4ba8da PM |
1205 | th->context.Dr7 = dr[7]; |
1206 | CHECK (SetThreadContext (th->h, &th->context)); | |
1207 | th->context.ContextFlags = 0; | |
1208 | } | |
3cee93ac CF |
1209 | } |
1210 | ||
fa4ba8da | 1211 | debug_registers_changed = 0; |
3cee93ac CF |
1212 | return res; |
1213 | } | |
1214 | ||
d6dc8049 CF |
1215 | /* Called in pathological case where Windows fails to send a |
1216 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ade5333 CF |
1217 | DWORD |
1218 | fake_create_process () | |
1219 | { | |
1220 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1221 | current_event.dwProcessId); | |
1222 | main_thread_id = current_event.dwThreadId; | |
1223 | current_thread = child_add_thread (main_thread_id, | |
1224 | current_event.u.CreateThread.hThread); | |
1225 | return main_thread_id; | |
1226 | } | |
1227 | ||
8a892701 CF |
1228 | /* Get the next event from the child. Return 1 if the event requires |
1229 | handling by WFI (or whatever). | |
1230 | */ | |
1e37c281 | 1231 | static int |
0a65a603 | 1232 | get_child_debug_event (int pid, struct target_waitstatus *ourstatus) |
1e37c281 JM |
1233 | { |
1234 | BOOL debug_event; | |
8a892701 | 1235 | DWORD continue_status, event_code; |
87a45c96 | 1236 | thread_info *th; |
8a892701 | 1237 | static thread_info dummy_thread_info; |
450005e7 | 1238 | int retval = 0; |
1e37c281 | 1239 | |
7393af7c | 1240 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1241 | |
8a892701 | 1242 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1243 | goto out; |
1e37c281 JM |
1244 | |
1245 | event_count++; | |
1246 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1247 | |
8a892701 | 1248 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1249 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1250 | th = NULL; |
8a892701 CF |
1251 | |
1252 | switch (event_code) | |
1e37c281 JM |
1253 | { |
1254 | case CREATE_THREAD_DEBUG_EVENT: | |
1255 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1256 | (unsigned) current_event.dwProcessId, |
1257 | (unsigned) current_event.dwThreadId, | |
1258 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1259 | if (saw_create != 1) |
3ade5333 CF |
1260 | { |
1261 | if (!saw_create && attach_flag) | |
1262 | { | |
d6dc8049 CF |
1263 | /* Kludge around a Windows bug where first event is a create |
1264 | thread event. Caused when attached process does not have | |
1265 | a main thread. */ | |
3ade5333 CF |
1266 | retval = ourstatus->value.related_pid = fake_create_process (); |
1267 | saw_create++; | |
1268 | } | |
1269 | break; | |
1270 | } | |
1e37c281 | 1271 | /* Record the existence of this thread */ |
8a892701 CF |
1272 | th = child_add_thread (current_event.dwThreadId, |
1273 | current_event.u.CreateThread.hThread); | |
1e37c281 JM |
1274 | if (info_verbose) |
1275 | printf_unfiltered ("[New %s]\n", | |
39f77062 KB |
1276 | target_pid_to_str ( |
1277 | pid_to_ptid (current_event.dwThreadId))); | |
450005e7 | 1278 | retval = current_event.dwThreadId; |
1e37c281 JM |
1279 | break; |
1280 | ||
1281 | case EXIT_THREAD_DEBUG_EVENT: | |
1282 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1283 | (unsigned) current_event.dwProcessId, |
1284 | (unsigned) current_event.dwThreadId, | |
1285 | "EXIT_THREAD_DEBUG_EVENT")); | |
87a45c96 CF |
1286 | if (current_event.dwThreadId != main_thread_id) |
1287 | { | |
1288 | child_delete_thread (current_event.dwThreadId); | |
1289 | th = &dummy_thread_info; | |
1290 | } | |
1e37c281 JM |
1291 | break; |
1292 | ||
1293 | case CREATE_PROCESS_DEBUG_EVENT: | |
1294 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1295 | (unsigned) current_event.dwProcessId, |
1296 | (unsigned) current_event.dwThreadId, | |
1297 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1298 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac CF |
1299 | if (++saw_create != 1) |
1300 | { | |
1301 | CloseHandle (current_event.u.CreateProcessInfo.hProcess); | |
1302 | break; | |
1303 | } | |
1e37c281 | 1304 | |
dfe7f3ac | 1305 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 CF |
1306 | if (main_thread_id) |
1307 | child_delete_thread (main_thread_id); | |
9d3789f7 | 1308 | main_thread_id = current_event.dwThreadId; |
1e37c281 | 1309 | /* Add the main thread */ |
9d3789f7 | 1310 | th = child_add_thread (main_thread_id, |
8a892701 | 1311 | current_event.u.CreateProcessInfo.hThread); |
9d3789f7 | 1312 | retval = ourstatus->value.related_pid = current_event.dwThreadId; |
1e37c281 JM |
1313 | break; |
1314 | ||
1315 | case EXIT_PROCESS_DEBUG_EVENT: | |
1316 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1317 | (unsigned) current_event.dwProcessId, |
1318 | (unsigned) current_event.dwThreadId, | |
1319 | "EXIT_PROCESS_DEBUG_EVENT")); | |
dfe7f3ac CF |
1320 | if (saw_create != 1) |
1321 | break; | |
1e37c281 JM |
1322 | ourstatus->kind = TARGET_WAITKIND_EXITED; |
1323 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1324 | CloseHandle (current_process_handle); | |
9d3789f7 | 1325 | retval = main_thread_id; |
8a892701 | 1326 | break; |
1e37c281 JM |
1327 | |
1328 | case LOAD_DLL_DEBUG_EVENT: | |
1329 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1330 | (unsigned) current_event.dwProcessId, |
1331 | (unsigned) current_event.dwThreadId, | |
1332 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1333 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1334 | if (saw_create != 1) |
1335 | break; | |
8a892701 | 1336 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
1e37c281 | 1337 | registers_changed (); /* mark all regs invalid */ |
450005e7 CF |
1338 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1339 | ourstatus->value.integer = 0; | |
9d3789f7 | 1340 | retval = main_thread_id; |
5633f842 | 1341 | re_enable_breakpoints_in_shlibs (); |
1e37c281 JM |
1342 | break; |
1343 | ||
1344 | case UNLOAD_DLL_DEBUG_EVENT: | |
1345 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1346 | (unsigned) current_event.dwProcessId, |
1347 | (unsigned) current_event.dwThreadId, | |
1348 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1349 | if (saw_create != 1) |
1350 | break; | |
d3ff4a77 CF |
1351 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
1352 | registers_changed (); /* mark all regs invalid */ | |
1353 | /* ourstatus->kind = TARGET_WAITKIND_UNLOADED; | |
3bccec63 | 1354 | does not exist yet. */ |
d3ff4a77 | 1355 | break; |
1e37c281 JM |
1356 | |
1357 | case EXCEPTION_DEBUG_EVENT: | |
1358 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1359 | (unsigned) current_event.dwProcessId, |
1360 | (unsigned) current_event.dwThreadId, | |
1361 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1362 | if (saw_create != 1) |
1363 | break; | |
02e423b9 CF |
1364 | if (handle_exception (ourstatus)) |
1365 | retval = current_event.dwThreadId; | |
1e37c281 JM |
1366 | break; |
1367 | ||
8a892701 | 1368 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
1e37c281 | 1369 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", |
8a892701 CF |
1370 | (unsigned) current_event.dwProcessId, |
1371 | (unsigned) current_event.dwThreadId, | |
1372 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1373 | if (saw_create != 1) |
1374 | break; | |
8e860359 | 1375 | if (handle_output_debug_string (ourstatus)) |
9d3789f7 | 1376 | retval = main_thread_id; |
1e37c281 | 1377 | break; |
9d3789f7 | 1378 | |
1e37c281 | 1379 | default: |
dfe7f3ac CF |
1380 | if (saw_create != 1) |
1381 | break; | |
29fe111d CF |
1382 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1383 | (DWORD) current_event.dwProcessId, | |
1384 | (DWORD) current_event.dwThreadId); | |
1385 | printf_unfiltered (" unknown event code %ld\n", | |
1e37c281 JM |
1386 | current_event.dwDebugEventCode); |
1387 | break; | |
1388 | } | |
1389 | ||
dfe7f3ac | 1390 | if (!retval || saw_create != 1) |
8a892701 | 1391 | CHECK (child_continue (continue_status, -1)); |
450005e7 | 1392 | else |
9d3789f7 | 1393 | { |
39f77062 | 1394 | inferior_ptid = pid_to_ptid (retval); |
3ade5333 | 1395 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1396 | } |
1e37c281 JM |
1397 | |
1398 | out: | |
450005e7 | 1399 | return retval; |
1e37c281 JM |
1400 | } |
1401 | ||
1e37c281 | 1402 | /* Wait for interesting events to occur in the target process. */ |
39f77062 KB |
1403 | static ptid_t |
1404 | child_wait (ptid_t ptid, struct target_waitstatus *ourstatus) | |
24e60978 | 1405 | { |
39f77062 KB |
1406 | int pid = PIDGET (ptid); |
1407 | ||
24e60978 SC |
1408 | /* We loop when we get a non-standard exception rather than return |
1409 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1410 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 SC |
1411 | the birth or death of threads, which mean that the current thread |
1412 | isn't necessarily what you think it is. */ | |
1413 | ||
1414 | while (1) | |
450005e7 CF |
1415 | { |
1416 | int retval = get_child_debug_event (pid, ourstatus); | |
1417 | if (retval) | |
39f77062 | 1418 | return pid_to_ptid (retval); |
450005e7 CF |
1419 | else |
1420 | { | |
1421 | int detach = 0; | |
3cee93ac | 1422 | |
450005e7 CF |
1423 | if (ui_loop_hook != NULL) |
1424 | detach = ui_loop_hook (0); | |
0714f9bf | 1425 | |
450005e7 CF |
1426 | if (detach) |
1427 | child_kill_inferior (); | |
1428 | } | |
1429 | } | |
24e60978 SC |
1430 | } |
1431 | ||
9d3789f7 CF |
1432 | static void |
1433 | do_initial_child_stuff (DWORD pid) | |
1434 | { | |
1435 | extern int stop_after_trap; | |
fa4ba8da | 1436 | int i; |
9d3789f7 | 1437 | |
7393af7c | 1438 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1439 | event_count = 0; |
1440 | exception_count = 0; | |
fa4ba8da | 1441 | debug_registers_changed = 0; |
dfe7f3ac | 1442 | debug_registers_used = 0; |
fa4ba8da PM |
1443 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1444 | dr[i] = 0; | |
9d3789f7 CF |
1445 | current_event.dwProcessId = pid; |
1446 | memset (¤t_event, 0, sizeof (current_event)); | |
1447 | push_target (&child_ops); | |
1448 | child_init_thread_list (); | |
5633f842 | 1449 | disable_breakpoints_in_shlibs (1); |
9d3789f7 CF |
1450 | child_clear_solibs (); |
1451 | clear_proceed_status (); | |
1452 | init_wait_for_inferior (); | |
1453 | ||
1454 | target_terminal_init (); | |
1455 | target_terminal_inferior (); | |
1456 | ||
1457 | while (1) | |
1458 | { | |
1459 | stop_after_trap = 1; | |
1460 | wait_for_inferior (); | |
1461 | if (stop_signal != TARGET_SIGNAL_TRAP) | |
1462 | resume (0, stop_signal); | |
1463 | else | |
1464 | break; | |
1465 | } | |
1466 | stop_after_trap = 0; | |
1467 | return; | |
1468 | } | |
1469 | ||
02cc9f49 CV |
1470 | /* Since Windows XP, detaching from a process is supported by Windows. |
1471 | The following code tries loading the appropriate functions dynamically. | |
1472 | If loading these functions succeeds use them to actually detach from | |
1473 | the inferior process, otherwise behave as usual, pretending that | |
1474 | detach has worked. */ | |
1475 | static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL); | |
1476 | static BOOL WINAPI (*DebugActiveProcessStop)(DWORD); | |
1477 | ||
1478 | static int | |
5ae5f592 | 1479 | has_detach_ability (void) |
02cc9f49 CV |
1480 | { |
1481 | static HMODULE kernel32 = NULL; | |
1482 | ||
1483 | if (!kernel32) | |
1484 | kernel32 = LoadLibrary ("kernel32.dll"); | |
1485 | if (kernel32) | |
1486 | { | |
1487 | if (!DebugSetProcessKillOnExit) | |
1488 | DebugSetProcessKillOnExit = GetProcAddress (kernel32, | |
1489 | "DebugSetProcessKillOnExit"); | |
1490 | if (!DebugActiveProcessStop) | |
1491 | DebugActiveProcessStop = GetProcAddress (kernel32, | |
1492 | "DebugActiveProcessStop"); | |
1493 | if (DebugSetProcessKillOnExit && DebugActiveProcessStop) | |
1494 | return 1; | |
1495 | } | |
1496 | return 0; | |
1497 | } | |
24e60978 | 1498 | |
616a9dc4 CV |
1499 | /* Try to set or remove a user privilege to the current process. Return -1 |
1500 | if that fails, the previous setting of that privilege otherwise. | |
1501 | ||
1502 | This code is copied from the Cygwin source code and rearranged to allow | |
1503 | dynamically loading of the needed symbols from advapi32 which is only | |
1504 | available on NT/2K/XP. */ | |
1505 | static int | |
1506 | set_process_privilege (const char *privilege, BOOL enable) | |
1507 | { | |
1508 | static HMODULE advapi32 = NULL; | |
1509 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
1510 | static BOOL WINAPI (*LookupPrivilegeValue)(LPCSTR, LPCSTR, PLUID); | |
1511 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, | |
1512 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
1513 | ||
1514 | HANDLE token_hdl = NULL; | |
1515 | LUID restore_priv; | |
1516 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1517 | int ret = -1; | |
1518 | DWORD size; | |
1519 | ||
1520 | if (GetVersion () >= 0x80000000) /* No security availbale on 9x/Me */ | |
1521 | return 0; | |
1522 | ||
1523 | if (!advapi32) | |
1524 | { | |
1525 | if (!(advapi32 = LoadLibrary ("advapi32.dll"))) | |
1526 | goto out; | |
1527 | if (!OpenProcessToken) | |
1528 | OpenProcessToken = GetProcAddress (advapi32, "OpenProcessToken"); | |
1529 | if (!LookupPrivilegeValue) | |
1530 | LookupPrivilegeValue = GetProcAddress (advapi32, | |
1531 | "LookupPrivilegeValueA"); | |
1532 | if (!AdjustTokenPrivileges) | |
1533 | AdjustTokenPrivileges = GetProcAddress (advapi32, | |
1534 | "AdjustTokenPrivileges"); | |
1535 | if (!OpenProcessToken || !LookupPrivilegeValue || !AdjustTokenPrivileges) | |
295732ea | 1536 | { |
616a9dc4 CV |
1537 | advapi32 = NULL; |
1538 | goto out; | |
1539 | } | |
1540 | } | |
295732ea | 1541 | |
616a9dc4 CV |
1542 | if (!OpenProcessToken (GetCurrentProcess (), |
1543 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1544 | &token_hdl)) | |
1545 | goto out; | |
1546 | ||
1547 | if (!LookupPrivilegeValue (NULL, privilege, &restore_priv)) | |
1548 | goto out; | |
1549 | ||
1550 | new_priv.PrivilegeCount = 1; | |
1551 | new_priv.Privileges[0].Luid = restore_priv; | |
1552 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1553 | ||
1554 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1555 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1556 | goto out; |
1557 | #if 0 | |
1558 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1559 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
1560 | child_attach(). */ | |
1561 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not | |
1562 | be enabled. GetLastError () returns an correct error code, though. */ | |
1563 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) | |
1564 | goto out; | |
1565 | #endif | |
1566 | ||
1567 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1568 | ||
1569 | out: | |
1570 | if (token_hdl) | |
1571 | CloseHandle (token_hdl); | |
1572 | ||
1573 | return ret; | |
1574 | } | |
1575 | ||
02cc9f49 | 1576 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1577 | static void |
fba45db2 | 1578 | child_attach (char *args, int from_tty) |
24e60978 SC |
1579 | { |
1580 | BOOL ok; | |
559e75c0 | 1581 | DWORD pid; |
24e60978 SC |
1582 | |
1583 | if (!args) | |
1584 | error_no_arg ("process-id to attach"); | |
1585 | ||
616a9dc4 CV |
1586 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1587 | { | |
1588 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
1589 | printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n"); | |
1590 | } | |
1591 | ||
baa93fa6 CF |
1592 | pid = strtoul (args, 0, 0); /* Windows pid */ |
1593 | ||
9d3789f7 | 1594 | ok = DebugActiveProcess (pid); |
91a175b3 | 1595 | saw_create = 0; |
24e60978 SC |
1596 | |
1597 | if (!ok) | |
baa93fa6 CF |
1598 | { |
1599 | /* Try fall back to Cygwin pid */ | |
1600 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); | |
1601 | ||
1602 | if (pid > 0) | |
1603 | ok = DebugActiveProcess (pid); | |
1604 | ||
1605 | if (!ok) | |
caad7706 | 1606 | error ("Can't attach to process."); |
baa93fa6 | 1607 | } |
24e60978 | 1608 | |
02cc9f49 | 1609 | if (has_detach_ability ()) |
3ade5333 CF |
1610 | DebugSetProcessKillOnExit (FALSE); |
1611 | ||
1612 | attach_flag = 1; | |
02cc9f49 | 1613 | |
24e60978 SC |
1614 | if (from_tty) |
1615 | { | |
1616 | char *exec_file = (char *) get_exec_file (0); | |
1617 | ||
1618 | if (exec_file) | |
1619 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1620 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1621 | else |
1622 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1623 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1624 | |
1625 | gdb_flush (gdb_stdout); | |
1626 | } | |
1627 | ||
9d3789f7 CF |
1628 | do_initial_child_stuff (pid); |
1629 | target_terminal_ours (); | |
24e60978 SC |
1630 | } |
1631 | ||
24e60978 | 1632 | static void |
0a65a603 | 1633 | child_detach (char *args, int from_tty) |
24e60978 | 1634 | { |
02cc9f49 CV |
1635 | int detached = 1; |
1636 | ||
1637 | if (has_detach_ability ()) | |
1638 | { | |
1639 | delete_command (NULL, 0); | |
1640 | child_continue (DBG_CONTINUE, -1); | |
1641 | if (!DebugActiveProcessStop (current_event.dwProcessId)) | |
3bccec63 | 1642 | { |
02cc9f49 CV |
1643 | error ("Can't detach process %lu (error %lu)", |
1644 | current_event.dwProcessId, GetLastError ()); | |
1645 | detached = 0; | |
3bccec63 | 1646 | } |
02cc9f49 CV |
1647 | DebugSetProcessKillOnExit (FALSE); |
1648 | } | |
1649 | if (detached && from_tty) | |
24e60978 SC |
1650 | { |
1651 | char *exec_file = get_exec_file (0); | |
1652 | if (exec_file == 0) | |
1653 | exec_file = ""; | |
02cc9f49 CV |
1654 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1655 | current_event.dwProcessId); | |
24e60978 SC |
1656 | gdb_flush (gdb_stdout); |
1657 | } | |
39f77062 | 1658 | inferior_ptid = null_ptid; |
24e60978 SC |
1659 | unpush_target (&child_ops); |
1660 | } | |
1661 | ||
24e60978 SC |
1662 | /* Print status information about what we're accessing. */ |
1663 | ||
1664 | static void | |
0a65a603 | 1665 | child_files_info (struct target_ops *ignore) |
24e60978 SC |
1666 | { |
1667 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
39f77062 | 1668 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid)); |
24e60978 SC |
1669 | } |
1670 | ||
24e60978 | 1671 | static void |
0a65a603 | 1672 | child_open (char *arg, int from_tty) |
24e60978 SC |
1673 | { |
1674 | error ("Use the \"run\" command to start a Unix child process."); | |
1675 | } | |
1676 | ||
39f77062 | 1677 | /* Start an inferior win32 child process and sets inferior_ptid to its pid. |
24e60978 SC |
1678 | EXEC_FILE is the file to run. |
1679 | ALLARGS is a string containing the arguments to the program. | |
1680 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1681 | ||
24e60978 | 1682 | static void |
fba45db2 | 1683 | child_create_inferior (char *exec_file, char *allargs, char **env) |
24e60978 | 1684 | { |
1750a5ef SC |
1685 | char *winenv; |
1686 | char *temp; | |
3a4b77d8 | 1687 | int envlen; |
1750a5ef | 1688 | int i; |
24e60978 SC |
1689 | STARTUPINFO si; |
1690 | PROCESS_INFORMATION pi; | |
24e60978 SC |
1691 | BOOL ret; |
1692 | DWORD flags; | |
eb708f2e | 1693 | char *args; |
dfe7f3ac CF |
1694 | char real_path[MAXPATHLEN]; |
1695 | char *toexec; | |
349b409f CF |
1696 | char shell[MAX_PATH + 1]; /* Path to shell */ |
1697 | const char *sh; | |
2becadee CF |
1698 | int tty; |
1699 | int ostdin, ostdout, ostderr; | |
24e60978 SC |
1700 | |
1701 | if (!exec_file) | |
450005e7 | 1702 | error ("No executable specified, use `target exec'.\n"); |
24e60978 SC |
1703 | |
1704 | memset (&si, 0, sizeof (si)); | |
1705 | si.cb = sizeof (si); | |
1706 | ||
349b409f | 1707 | if (!useshell) |
dfe7f3ac CF |
1708 | { |
1709 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1710 | cygwin_conv_to_win32_path (exec_file, real_path); | |
1711 | toexec = real_path; | |
1712 | } | |
1713 | else | |
1714 | { | |
349b409f CF |
1715 | char *newallargs; |
1716 | sh = getenv ("SHELL"); | |
1717 | if (!sh) | |
1718 | sh = "/bin/sh"; | |
1719 | cygwin_conv_to_win32_path (sh, shell); | |
1720 | newallargs = alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
1721 | + strlen (allargs) + 2); | |
dfe7f3ac CF |
1722 | sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs); |
1723 | allargs = newallargs; | |
1724 | toexec = shell; | |
1725 | flags = DEBUG_PROCESS; | |
1726 | } | |
eb708f2e | 1727 | |
eeb25b8a PM |
1728 | if (new_group) |
1729 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1730 | ||
1731 | if (new_console) | |
1732 | flags |= CREATE_NEW_CONSOLE; | |
1733 | ||
3ade5333 CF |
1734 | attach_flag = 0; |
1735 | ||
dfe7f3ac CF |
1736 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
1737 | strcpy (args, toexec); | |
eb708f2e SC |
1738 | strcat (args, " "); |
1739 | strcat (args, allargs); | |
1740 | ||
e88c49c3 DE |
1741 | /* Prepare the environment vars for CreateProcess. */ |
1742 | { | |
349b409f | 1743 | /* This code used to assume all env vars were file names and would |
e88c49c3 | 1744 | translate them all to win32 style. That obviously doesn't work in the |
2dcfc9c7 DE |
1745 | general case. The current rule is that we only translate PATH. |
1746 | We need to handle PATH because we're about to call CreateProcess and | |
1747 | it uses PATH to find DLL's. Fortunately PATH has a well-defined value | |
1748 | in both posix and win32 environments. cygwin.dll will change it back | |
1749 | to posix style if necessary. */ | |
e88c49c3 DE |
1750 | |
1751 | static const char *conv_path_names[] = | |
3a4b77d8 JM |
1752 | { |
1753 | "PATH=", | |
1754 | 0 | |
1755 | }; | |
e88c49c3 DE |
1756 | |
1757 | /* CreateProcess takes the environment list as a null terminated set of | |
1758 | strings (i.e. two nulls terminate the list). */ | |
1759 | ||
1760 | /* Get total size for env strings. */ | |
1761 | for (envlen = 0, i = 0; env[i] && *env[i]; i++) | |
1762 | { | |
2dcfc9c7 | 1763 | int j, len; |
e88c49c3 | 1764 | |
2dcfc9c7 DE |
1765 | for (j = 0; conv_path_names[j]; j++) |
1766 | { | |
1767 | len = strlen (conv_path_names[j]); | |
1768 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 1769 | { |
29fe111d | 1770 | if (cygwin_posix_path_list_p (env[i] + len)) |
2dcfc9c7 | 1771 | envlen += len |
29fe111d | 1772 | + cygwin_posix_to_win32_path_list_buf_size (env[i] + len); |
2dcfc9c7 DE |
1773 | else |
1774 | envlen += strlen (env[i]) + 1; | |
1775 | break; | |
e88c49c3 | 1776 | } |
e88c49c3 | 1777 | } |
2dcfc9c7 | 1778 | if (conv_path_names[j] == NULL) |
e88c49c3 DE |
1779 | envlen += strlen (env[i]) + 1; |
1780 | } | |
1781 | ||
1782 | winenv = alloca (envlen + 1); | |
1783 | ||
1784 | /* Copy env strings into new buffer. */ | |
3cee93ac | 1785 | for (temp = winenv, i = 0; env[i] && *env[i]; i++) |
e88c49c3 | 1786 | { |
2dcfc9c7 | 1787 | int j, len; |
e88c49c3 | 1788 | |
2dcfc9c7 DE |
1789 | for (j = 0; conv_path_names[j]; j++) |
1790 | { | |
1791 | len = strlen (conv_path_names[j]); | |
1792 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 1793 | { |
29fe111d | 1794 | if (cygwin_posix_path_list_p (env[i] + len)) |
e88c49c3 DE |
1795 | { |
1796 | memcpy (temp, env[i], len); | |
29fe111d | 1797 | cygwin_posix_to_win32_path_list (env[i] + len, temp + len); |
e88c49c3 | 1798 | } |
2dcfc9c7 DE |
1799 | else |
1800 | strcpy (temp, env[i]); | |
1801 | break; | |
e88c49c3 | 1802 | } |
e88c49c3 | 1803 | } |
2dcfc9c7 | 1804 | if (conv_path_names[j] == NULL) |
e88c49c3 | 1805 | strcpy (temp, env[i]); |
2dcfc9c7 | 1806 | |
e88c49c3 DE |
1807 | temp += strlen (temp) + 1; |
1808 | } | |
1809 | ||
1810 | /* Final nil string to terminate new env. */ | |
1811 | *temp = 0; | |
1812 | } | |
1750a5ef | 1813 | |
2becadee CF |
1814 | if (!inferior_io_terminal) |
1815 | tty = ostdin = ostdout = ostderr = -1; | |
1816 | else | |
1817 | { | |
1818 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
1819 | if (tty < 0) | |
1820 | { | |
1821 | print_sys_errmsg (inferior_io_terminal, errno); | |
1822 | ostdin = ostdout = ostderr = -1; | |
1823 | } | |
1824 | else | |
1825 | { | |
1826 | ostdin = dup (0); | |
1827 | ostdout = dup (1); | |
1828 | ostderr = dup (2); | |
1829 | dup2 (tty, 0); | |
1830 | dup2 (tty, 1); | |
1831 | dup2 (tty, 2); | |
1832 | } | |
1833 | } | |
1834 | ||
1750a5ef | 1835 | ret = CreateProcess (0, |
3a4b77d8 | 1836 | args, /* command line */ |
24e60978 SC |
1837 | NULL, /* Security */ |
1838 | NULL, /* thread */ | |
1839 | TRUE, /* inherit handles */ | |
1840 | flags, /* start flags */ | |
1750a5ef | 1841 | winenv, |
24e60978 SC |
1842 | NULL, /* current directory */ |
1843 | &si, | |
1844 | &pi); | |
2becadee CF |
1845 | if (tty >= 0) |
1846 | { | |
1847 | close (tty); | |
1848 | dup2 (ostdin, 0); | |
1849 | dup2 (ostdout, 1); | |
1850 | dup2 (ostderr, 2); | |
1851 | close (ostdin); | |
1852 | close (ostdout); | |
1853 | close (ostderr); | |
1854 | } | |
1855 | ||
24e60978 | 1856 | if (!ret) |
5633f842 | 1857 | error ("Error creating process %s, (error %d)\n", exec_file, (unsigned) GetLastError ()); |
24e60978 | 1858 | |
700b351b CF |
1859 | CloseHandle (pi.hThread); |
1860 | CloseHandle (pi.hProcess); | |
dfe7f3ac CF |
1861 | |
1862 | if (useshell && shell[0] != '\0') | |
1863 | saw_create = -1; | |
1864 | else | |
1865 | saw_create = 0; | |
1866 | ||
9d3789f7 | 1867 | do_initial_child_stuff (pi.dwProcessId); |
d3a09475 | 1868 | |
8e860359 | 1869 | /* child_continue (DBG_CONTINUE, -1); */ |
1e37c281 | 1870 | proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0); |
24e60978 SC |
1871 | } |
1872 | ||
1873 | static void | |
fba45db2 | 1874 | child_mourn_inferior (void) |
24e60978 | 1875 | { |
8a892701 | 1876 | (void) child_continue (DBG_CONTINUE, -1); |
fa4ba8da | 1877 | i386_cleanup_dregs(); |
24e60978 SC |
1878 | unpush_target (&child_ops); |
1879 | generic_mourn_inferior (); | |
1880 | } | |
1881 | ||
24e60978 SC |
1882 | /* Send a SIGINT to the process group. This acts just like the user typed a |
1883 | ^C on the controlling terminal. */ | |
1884 | ||
b607efe7 | 1885 | static void |
fba45db2 | 1886 | child_stop (void) |
24e60978 | 1887 | { |
1ef980b9 | 1888 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 1889 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 1890 | registers_changed (); /* refresh register state */ |
24e60978 SC |
1891 | } |
1892 | ||
1893 | int | |
eb708f2e | 1894 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, |
0a65a603 AC |
1895 | int write, struct mem_attrib *mem, |
1896 | struct target_ops *target) | |
24e60978 | 1897 | { |
6f17862b | 1898 | DWORD done = 0; |
24e60978 SC |
1899 | if (write) |
1900 | { | |
29fe111d CF |
1901 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
1902 | len, (DWORD) memaddr)); | |
6f17862b CF |
1903 | if (!WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our, |
1904 | len, &done)) | |
1905 | done = 0; | |
3cee93ac | 1906 | FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len); |
24e60978 SC |
1907 | } |
1908 | else | |
1909 | { | |
29fe111d CF |
1910 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
1911 | len, (DWORD) memaddr)); | |
6f17862b CF |
1912 | if (!ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, |
1913 | len, &done)) | |
1914 | done = 0; | |
24e60978 SC |
1915 | } |
1916 | return done; | |
1917 | } | |
1918 | ||
1919 | void | |
1920 | child_kill_inferior (void) | |
1921 | { | |
3cee93ac CF |
1922 | CHECK (TerminateProcess (current_process_handle, 0)); |
1923 | ||
b5edcb45 ILT |
1924 | for (;;) |
1925 | { | |
8a892701 | 1926 | if (!child_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 1927 | break; |
3cee93ac | 1928 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 1929 | break; |
3cee93ac | 1930 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
1931 | break; |
1932 | } | |
1933 | ||
3cee93ac CF |
1934 | CHECK (CloseHandle (current_process_handle)); |
1935 | ||
1936 | /* this may fail in an attached process so don't check. */ | |
3ade5333 CF |
1937 | if (current_thread && current_thread->h) |
1938 | (void) CloseHandle (current_thread->h); | |
3a4b77d8 | 1939 | target_mourn_inferior (); /* or just child_mourn_inferior? */ |
24e60978 SC |
1940 | } |
1941 | ||
1942 | void | |
39f77062 | 1943 | child_resume (ptid_t ptid, int step, enum target_signal sig) |
24e60978 | 1944 | { |
3cee93ac | 1945 | thread_info *th; |
7393af7c PM |
1946 | DWORD continue_status = DBG_CONTINUE; |
1947 | ||
39f77062 | 1948 | int pid = PIDGET (ptid); |
8a892701 | 1949 | |
7393af7c PM |
1950 | if (sig != TARGET_SIGNAL_0) |
1951 | { | |
1952 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1953 | { | |
1954 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1955 | } | |
1956 | else if (sig == last_sig) | |
1957 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1958 | else | |
1959 | #if 0 | |
1960 | /* This code does not seem to work, because | |
1961 | the kernel does probably not consider changes in the ExceptionRecord | |
dfe7f3ac | 1962 | structure when passing the exception to the inferior. |
7393af7c PM |
1963 | Note that this seems possible in the exception handler itself. */ |
1964 | { | |
1965 | int i; | |
1966 | for (i = 0; xlate[i].them != -1; i++) | |
1967 | if (xlate[i].us == sig) | |
1968 | { | |
1969 | current_event.u.Exception.ExceptionRecord.ExceptionCode = | |
1970 | xlate[i].them; | |
1971 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1972 | break; | |
1973 | } | |
1974 | if (continue_status == DBG_CONTINUE) | |
1975 | { | |
1976 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1977 | } | |
1978 | } | |
1979 | #endif | |
dfe7f3ac | 1980 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", |
7393af7c PM |
1981 | last_sig)); |
1982 | } | |
1983 | ||
1984 | last_sig = TARGET_SIGNAL_0; | |
24e60978 | 1985 | |
3cee93ac CF |
1986 | DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n", |
1987 | pid, step, sig)); | |
1988 | ||
1989 | /* Get context for currently selected thread */ | |
1990 | th = thread_rec (current_event.dwThreadId, FALSE); | |
450005e7 | 1991 | if (th) |
24e60978 | 1992 | { |
450005e7 CF |
1993 | if (step) |
1994 | { | |
1995 | /* Single step by setting t bit */ | |
1996 | child_fetch_inferior_registers (PS_REGNUM); | |
1997 | th->context.EFlags |= FLAG_TRACE_BIT; | |
1998 | } | |
24e60978 | 1999 | |
450005e7 CF |
2000 | if (th->context.ContextFlags) |
2001 | { | |
caad7706 CF |
2002 | if (debug_registers_changed) |
2003 | { | |
2004 | th->context.Dr0 = dr[0]; | |
2005 | th->context.Dr1 = dr[1]; | |
2006 | th->context.Dr2 = dr[2]; | |
2007 | th->context.Dr3 = dr[3]; | |
2008 | /* th->context.Dr6 = dr[6]; | |
2009 | FIXME: should we set dr6 also ?? */ | |
2010 | th->context.Dr7 = dr[7]; | |
2011 | } | |
450005e7 CF |
2012 | CHECK (SetThreadContext (th->h, &th->context)); |
2013 | th->context.ContextFlags = 0; | |
2014 | } | |
24e60978 SC |
2015 | } |
2016 | ||
3cee93ac CF |
2017 | /* Allow continuing with the same signal that interrupted us. |
2018 | Otherwise complain. */ | |
24e60978 | 2019 | |
8a892701 | 2020 | child_continue (continue_status, pid); |
24e60978 SC |
2021 | } |
2022 | ||
2023 | static void | |
fba45db2 | 2024 | child_prepare_to_store (void) |
24e60978 SC |
2025 | { |
2026 | /* Do nothing, since we can store individual regs */ | |
2027 | } | |
2028 | ||
2029 | static int | |
fba45db2 | 2030 | child_can_run (void) |
24e60978 SC |
2031 | { |
2032 | return 1; | |
2033 | } | |
2034 | ||
2035 | static void | |
0a65a603 | 2036 | child_close (int x) |
24e60978 | 2037 | { |
39f77062 | 2038 | DEBUG_EVENTS (("gdb: child_close, inferior_ptid=%d\n", |
3bccec63 | 2039 | PIDGET (inferior_ptid))); |
24e60978 | 2040 | } |
1ef980b9 | 2041 | |
3a4b77d8 | 2042 | struct target_ops child_ops; |
c719b714 | 2043 | |
3a4b77d8 JM |
2044 | static void |
2045 | init_child_ops (void) | |
24e60978 | 2046 | { |
3a4b77d8 JM |
2047 | child_ops.to_shortname = "child"; |
2048 | child_ops.to_longname = "Win32 child process"; | |
2049 | child_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2050 | child_ops.to_open = child_open; | |
2051 | child_ops.to_close = child_close; | |
2052 | child_ops.to_attach = child_attach; | |
2053 | child_ops.to_detach = child_detach; | |
2054 | child_ops.to_resume = child_resume; | |
2055 | child_ops.to_wait = child_wait; | |
2056 | child_ops.to_fetch_registers = child_fetch_inferior_registers; | |
2057 | child_ops.to_store_registers = child_store_inferior_registers; | |
2058 | child_ops.to_prepare_to_store = child_prepare_to_store; | |
2059 | child_ops.to_xfer_memory = child_xfer_memory; | |
2060 | child_ops.to_files_info = child_files_info; | |
2061 | child_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2062 | child_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2063 | child_ops.to_terminal_init = terminal_init_inferior; | |
2064 | child_ops.to_terminal_inferior = terminal_inferior; | |
2065 | child_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2066 | child_ops.to_terminal_ours = terminal_ours; | |
a790ad35 | 2067 | child_ops.to_terminal_save_ours = terminal_save_ours; |
3a4b77d8 JM |
2068 | child_ops.to_terminal_info = child_terminal_info; |
2069 | child_ops.to_kill = child_kill_inferior; | |
3a4b77d8 JM |
2070 | child_ops.to_create_inferior = child_create_inferior; |
2071 | child_ops.to_mourn_inferior = child_mourn_inferior; | |
2072 | child_ops.to_can_run = child_can_run; | |
3a4b77d8 | 2073 | child_ops.to_thread_alive = win32_child_thread_alive; |
d3a09475 | 2074 | child_ops.to_pid_to_str = cygwin_pid_to_str; |
3a4b77d8 JM |
2075 | child_ops.to_stop = child_stop; |
2076 | child_ops.to_stratum = process_stratum; | |
3a4b77d8 JM |
2077 | child_ops.to_has_all_memory = 1; |
2078 | child_ops.to_has_memory = 1; | |
2079 | child_ops.to_has_stack = 1; | |
2080 | child_ops.to_has_registers = 1; | |
2081 | child_ops.to_has_execution = 1; | |
3a4b77d8 | 2082 | child_ops.to_magic = OPS_MAGIC; |
c719b714 | 2083 | } |
24e60978 SC |
2084 | |
2085 | void | |
a6b6b089 | 2086 | _initialize_win32_nat (void) |
24e60978 | 2087 | { |
fa58ee11 EZ |
2088 | struct cmd_list_element *c; |
2089 | ||
3a4b77d8 | 2090 | init_child_ops (); |
1ef980b9 | 2091 | |
fa58ee11 EZ |
2092 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
2093 | "Load dll library symbols from FILE."); | |
5ba2abeb | 2094 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2095 | |
2096 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2097 | ||
dfe7f3ac CF |
2098 | add_show_from_set (add_set_cmd ("shell", class_support, var_boolean, |
2099 | (char *) &useshell, | |
2100 | "Set use of shell to start subprocess.", | |
2101 | &setlist), | |
2102 | &showlist); | |
2103 | ||
450005e7 | 2104 | add_show_from_set (add_set_cmd ("new-console", class_support, var_boolean, |
8e860359 CF |
2105 | (char *) &new_console, |
2106 | "Set creation of new console when creating child process.", | |
2107 | &setlist), | |
2108 | &showlist); | |
24e60978 | 2109 | |
450005e7 | 2110 | add_show_from_set (add_set_cmd ("new-group", class_support, var_boolean, |
8e860359 CF |
2111 | (char *) &new_group, |
2112 | "Set creation of new group when creating child process.", | |
2113 | &setlist), | |
2114 | &showlist); | |
24e60978 | 2115 | |
450005e7 | 2116 | add_show_from_set (add_set_cmd ("debugexec", class_support, var_boolean, |
8e860359 CF |
2117 | (char *) &debug_exec, |
2118 | "Set whether to display execution in child process.", | |
2119 | &setlist), | |
2120 | &showlist); | |
1ef980b9 | 2121 | |
450005e7 | 2122 | add_show_from_set (add_set_cmd ("debugevents", class_support, var_boolean, |
8e860359 CF |
2123 | (char *) &debug_events, |
2124 | "Set whether to display kernel events in child process.", | |
2125 | &setlist), | |
2126 | &showlist); | |
1ef980b9 | 2127 | |
450005e7 | 2128 | add_show_from_set (add_set_cmd ("debugmemory", class_support, var_boolean, |
8e860359 CF |
2129 | (char *) &debug_memory, |
2130 | "Set whether to display memory accesses in child process.", | |
2131 | &setlist), | |
2132 | &showlist); | |
1ef980b9 | 2133 | |
450005e7 | 2134 | add_show_from_set (add_set_cmd ("debugexceptions", class_support, var_boolean, |
8e860359 CF |
2135 | (char *) &debug_exceptions, |
2136 | "Set whether to display kernel exceptions in child process.", | |
2137 | &setlist), | |
2138 | &showlist); | |
1ef980b9 | 2139 | |
450005e7 CF |
2140 | add_info ("dll", info_dll_command, "Status of loaded DLLs."); |
2141 | add_info_alias ("sharedlibrary", "dll", 1); | |
2142 | ||
c1748f97 | 2143 | add_prefix_cmd ("w32", class_info, info_w32_command, |
baa93fa6 CF |
2144 | "Print information specific to Win32 debugging.", |
2145 | &info_w32_cmdlist, "info w32 ", 0, &infolist); | |
c1748f97 PM |
2146 | |
2147 | add_cmd ("selector", class_info, display_selectors, | |
baa93fa6 | 2148 | "Display selectors infos.", |
c1748f97 PM |
2149 | &info_w32_cmdlist); |
2150 | ||
24e60978 SC |
2151 | add_target (&child_ops); |
2152 | } | |
3cee93ac | 2153 | |
fa4ba8da PM |
2154 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2155 | ||
2156 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2157 | Here we just store the address in dr array, the registers will be | |
2158 | actually set up when child_continue is called. */ | |
2159 | void | |
2160 | cygwin_set_dr (int i, CORE_ADDR addr) | |
2161 | { | |
2162 | if (i < 0 || i > 3) | |
2163 | internal_error (__FILE__, __LINE__, | |
2164 | "Invalid register %d in cygwin_set_dr.\n", i); | |
2165 | dr[i] = (unsigned) addr; | |
2166 | debug_registers_changed = 1; | |
2167 | debug_registers_used = 1; | |
2168 | } | |
2169 | ||
2170 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2171 | register. Here we just store the address in D_REGS, the watchpoint | |
2172 | will be actually set up in child_wait. */ | |
2173 | void | |
2174 | cygwin_set_dr7 (unsigned val) | |
2175 | { | |
2176 | dr[7] = val; | |
2177 | debug_registers_changed = 1; | |
2178 | debug_registers_used = 1; | |
2179 | } | |
2180 | ||
2181 | /* Get the value of the DR6 debug status register from the inferior. | |
2182 | Here we just return the value stored in dr[6] | |
2183 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
2184 | unsigned | |
2185 | cygwin_get_dr6 (void) | |
2186 | { | |
2187 | return dr[6]; | |
2188 | } | |
2189 | ||
3cee93ac CF |
2190 | /* Determine if the thread referenced by "pid" is alive |
2191 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 | |
2192 | it means that the pid has died. Otherwise it is assumed to be alive. */ | |
2193 | static int | |
39f77062 | 2194 | win32_child_thread_alive (ptid_t ptid) |
3cee93ac | 2195 | { |
39f77062 KB |
2196 | int pid = PIDGET (ptid); |
2197 | ||
3a4b77d8 JM |
2198 | return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
2199 | FALSE : TRUE; | |
3cee93ac CF |
2200 | } |
2201 | ||
2202 | /* Convert pid to printable format. */ | |
2203 | char * | |
39f77062 | 2204 | cygwin_pid_to_str (ptid_t ptid) |
3cee93ac CF |
2205 | { |
2206 | static char buf[80]; | |
39f77062 KB |
2207 | int pid = PIDGET (ptid); |
2208 | ||
29fe111d | 2209 | if ((DWORD) pid == current_event.dwProcessId) |
b69571f5 | 2210 | sprintf (buf, "process %d", pid); |
3cee93ac | 2211 | else |
b69571f5 | 2212 | sprintf (buf, "thread %ld.0x%x", current_event.dwProcessId, pid); |
3cee93ac CF |
2213 | return buf; |
2214 | } | |
8e860359 CF |
2215 | |
2216 | static int | |
2217 | core_dll_symbols_add (char *dll_name, DWORD base_addr) | |
2218 | { | |
2219 | struct objfile *objfile; | |
2220 | char *objfile_basename; | |
2221 | const char *dll_basename; | |
2222 | ||
2223 | if (!(dll_basename = strrchr (dll_name, '/'))) | |
2224 | dll_basename = dll_name; | |
2225 | else | |
2226 | dll_basename++; | |
2227 | ||
2228 | ALL_OBJFILES (objfile) | |
2229 | { | |
2230 | objfile_basename = strrchr (objfile->name, '/'); | |
2231 | ||
2232 | if (objfile_basename && | |
2233 | strcmp (dll_basename, objfile_basename + 1) == 0) | |
2234 | { | |
2235 | printf_unfiltered ("%08lx:%s (symbols previously loaded)\n", | |
2236 | base_addr, dll_name); | |
2237 | goto out; | |
2238 | } | |
2239 | } | |
2240 | ||
87a45c96 CF |
2241 | register_loaded_dll (dll_name, base_addr + 0x1000); |
2242 | solib_symbols_add (dll_name, 0, (CORE_ADDR) base_addr + 0x1000); | |
8e860359 | 2243 | |
87a45c96 CF |
2244 | out: |
2245 | return 1; | |
2246 | } | |
8e860359 | 2247 | |
87a45c96 CF |
2248 | typedef struct |
2249 | { | |
2250 | struct target_ops *target; | |
2251 | bfd_vma addr; | |
2252 | } map_code_section_args; | |
8e860359 | 2253 | |
87a45c96 CF |
2254 | static void |
2255 | map_single_dll_code_section (bfd * abfd, asection * sect, void *obj) | |
2256 | { | |
2257 | int old; | |
2258 | int update_coreops; | |
2259 | struct section_table *new_target_sect_ptr; | |
8e860359 | 2260 | |
87a45c96 CF |
2261 | map_code_section_args *args = (map_code_section_args *) obj; |
2262 | struct target_ops *target = args->target; | |
2263 | if (sect->flags & SEC_CODE) | |
2264 | { | |
2265 | update_coreops = core_ops.to_sections == target->to_sections; | |
8e860359 | 2266 | |
87a45c96 CF |
2267 | if (target->to_sections) |
2268 | { | |
2269 | old = target->to_sections_end - target->to_sections; | |
2270 | target->to_sections = (struct section_table *) | |
2271 | xrealloc ((char *) target->to_sections, | |
2272 | (sizeof (struct section_table)) * (1 + old)); | |
2273 | } | |
2274 | else | |
2275 | { | |
2276 | old = 0; | |
2277 | target->to_sections = (struct section_table *) | |
2278 | xmalloc ((sizeof (struct section_table))); | |
2279 | } | |
2280 | target->to_sections_end = target->to_sections + (1 + old); | |
8e860359 | 2281 | |
87a45c96 CF |
2282 | /* Update the to_sections field in the core_ops structure |
2283 | if needed. */ | |
2284 | if (update_coreops) | |
2285 | { | |
2286 | core_ops.to_sections = target->to_sections; | |
2287 | core_ops.to_sections_end = target->to_sections_end; | |
2288 | } | |
2289 | new_target_sect_ptr = target->to_sections + old; | |
2290 | new_target_sect_ptr->addr = args->addr + bfd_section_vma (abfd, sect); | |
2291 | new_target_sect_ptr->endaddr = args->addr + bfd_section_vma (abfd, sect) + | |
2292 | bfd_section_size (abfd, sect);; | |
2293 | new_target_sect_ptr->the_bfd_section = sect; | |
2294 | new_target_sect_ptr->bfd = abfd; | |
2295 | } | |
2296 | } | |
8e860359 | 2297 | |
87a45c96 CF |
2298 | static int |
2299 | dll_code_sections_add (const char *dll_name, int base_addr, struct target_ops *target) | |
8e860359 CF |
2300 | { |
2301 | bfd *dll_bfd; | |
2302 | map_code_section_args map_args; | |
2303 | asection *lowest_sect; | |
2304 | char *name; | |
2305 | if (dll_name == NULL || target == NULL) | |
2306 | return 0; | |
66ed1d85 | 2307 | name = xstrdup (dll_name); |
8e860359 CF |
2308 | dll_bfd = bfd_openr (name, "pei-i386"); |
2309 | if (dll_bfd == NULL) | |
2310 | return 0; | |
2311 | ||
2312 | if (bfd_check_format (dll_bfd, bfd_object)) | |
2313 | { | |
2314 | lowest_sect = bfd_get_section_by_name (dll_bfd, ".text"); | |
2315 | if (lowest_sect == NULL) | |
2316 | return 0; | |
2317 | map_args.target = target; | |
2318 | map_args.addr = base_addr - bfd_section_vma (dll_bfd, lowest_sect); | |
2319 | ||
554cb486 | 2320 | bfd_map_over_sections (dll_bfd, &map_single_dll_code_section, (void *) (&map_args)); |
8e860359 CF |
2321 | } |
2322 | ||
2323 | return 1; | |
2324 | } | |
2325 | ||
2326 | static void | |
554cb486 | 2327 | core_section_load_dll_symbols (bfd * abfd, asection * sect, void *obj) |
8e860359 CF |
2328 | { |
2329 | struct target_ops *target = (struct target_ops *) obj; | |
2330 | ||
2331 | DWORD base_addr; | |
2332 | ||
2333 | int dll_name_size; | |
2334 | char *dll_name = NULL; | |
2335 | char *buf = NULL; | |
2336 | struct win32_pstatus *pstatus; | |
2337 | char *p; | |
2338 | ||
2339 | if (strncmp (sect->name, ".module", 7)) | |
2340 | return; | |
2341 | ||
2342 | buf = (char *) xmalloc (sect->_raw_size + 1); | |
2343 | if (!buf) | |
2344 | { | |
2345 | printf_unfiltered ("memory allocation failed for %s\n", sect->name); | |
2346 | goto out; | |
2347 | } | |
2348 | if (!bfd_get_section_contents (abfd, sect, buf, 0, sect->_raw_size)) | |
2349 | goto out; | |
2350 | ||
2351 | pstatus = (struct win32_pstatus *) buf; | |
2352 | ||
2353 | memmove (&base_addr, &(pstatus->data.module_info.base_address), sizeof (base_addr)); | |
2354 | dll_name_size = pstatus->data.module_info.module_name_size; | |
2355 | if (offsetof (struct win32_pstatus, data.module_info.module_name) + dll_name_size > sect->_raw_size) | |
2356 | goto out; | |
2357 | ||
2358 | dll_name = (char *) xmalloc (dll_name_size + 1); | |
2359 | if (!dll_name) | |
2360 | { | |
2361 | printf_unfiltered ("memory allocation failed for %s\n", sect->name); | |
2362 | goto out; | |
2363 | } | |
2364 | strncpy (dll_name, pstatus->data.module_info.module_name, dll_name_size); | |
2365 | ||
2366 | while ((p = strchr (dll_name, '\\'))) | |
2367 | *p = '/'; | |
2368 | ||
2369 | if (!core_dll_symbols_add (dll_name, (DWORD) base_addr)) | |
2370 | printf_unfiltered ("%s: Failed to load dll symbols.\n", dll_name); | |
2371 | ||
2372 | if (!dll_code_sections_add (dll_name, (DWORD) base_addr + 0x1000, target)) | |
2373 | printf_unfiltered ("%s: Failed to map dll code sections.\n", dll_name); | |
2374 | ||
2375 | out: | |
2376 | if (buf) | |
b8c9b27d | 2377 | xfree (buf); |
8e860359 | 2378 | if (dll_name) |
b8c9b27d | 2379 | xfree (dll_name); |
8e860359 CF |
2380 | return; |
2381 | } | |
2382 | ||
2383 | void | |
0a65a603 AC |
2384 | child_solib_add (char *filename, int from_tty, struct target_ops *target, |
2385 | int readsyms) | |
8e860359 | 2386 | { |
990f9fe3 FF |
2387 | if (!readsyms) |
2388 | return; | |
8e860359 CF |
2389 | if (core_bfd) |
2390 | { | |
2391 | child_clear_solibs (); | |
2392 | bfd_map_over_sections (core_bfd, &core_section_load_dll_symbols, target); | |
2393 | } | |
2394 | else | |
2395 | { | |
2396 | if (solib_end && solib_end->name) | |
d3ff4a77 | 2397 | solib_end->objfile = solib_symbols_add (solib_end->name, from_tty, |
3bccec63 | 2398 | solib_end->load_addr); |
8e860359 CF |
2399 | } |
2400 | } | |
2401 | ||
2402 | static void | |
2403 | fetch_elf_core_registers (char *core_reg_sect, | |
2404 | unsigned core_reg_size, | |
2405 | int which, | |
2406 | CORE_ADDR reg_addr) | |
2407 | { | |
2408 | int r; | |
2409 | if (core_reg_size < sizeof (CONTEXT)) | |
2410 | { | |
2411 | error ("Core file register section too small (%u bytes).", core_reg_size); | |
2412 | return; | |
2413 | } | |
2414 | for (r = 0; r < NUM_REGS; r++) | |
2415 | supply_register (r, core_reg_sect + mappings[r]); | |
2416 | } | |
2417 | ||
2418 | static struct core_fns win32_elf_core_fns = | |
2419 | { | |
2420 | bfd_target_elf_flavour, | |
2421 | default_check_format, | |
2422 | default_core_sniffer, | |
2423 | fetch_elf_core_registers, | |
2424 | NULL | |
2425 | }; | |
2426 | ||
2427 | void | |
0613c401 | 2428 | _initialize_core_win32 (void) |
8e860359 CF |
2429 | { |
2430 | add_core_fns (&win32_elf_core_fns); | |
2431 | } | |
2a3d5645 CF |
2432 | |
2433 | void | |
2434 | _initialize_check_for_gdb_ini (void) | |
2435 | { | |
2436 | char *homedir; | |
2437 | if (inhibit_gdbinit) | |
2438 | return; | |
2439 | ||
2440 | homedir = getenv ("HOME"); | |
2441 | if (homedir) | |
2442 | { | |
2443 | char *p; | |
2444 | char *oldini = (char *) alloca (strlen (homedir) + | |
2445 | sizeof ("/gdb.ini")); | |
2446 | strcpy (oldini, homedir); | |
2447 | p = strchr (oldini, '\0'); | |
2448 | if (p > oldini && p[-1] != '/') | |
2449 | *p++ = '/'; | |
2450 | strcpy (p, "gdb.ini"); | |
2451 | if (access (oldini, 0) == 0) | |
2452 | { | |
2453 | int len = strlen (oldini); | |
2454 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2455 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2456 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
2a3d5645 CF |
2457 | warning ("obsolete '%s' found. Rename to '%s'.", oldini, newini); |
2458 | } | |
2459 | } | |
2460 | } |