Commit | Line | Data |
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24e60978 | 1 | /* Target-vector operations for controlling win32 child processes, for GDB. |
0a65a603 | 2 | |
059198c1 | 3 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
2c500098 | 4 | Free Software Foundation, Inc. |
0a65a603 | 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" | |
60250e8b | 33 | #include "exceptions.h" |
24e60978 SC |
34 | #include "gdbcore.h" |
35 | #include "command.h" | |
fa58ee11 | 36 | #include "completer.h" |
4e052eda | 37 | #include "regcache.h" |
2a3d5645 | 38 | #include "top.h" |
403d9909 CF |
39 | #include <signal.h> |
40 | #include <sys/types.h> | |
41 | #include <fcntl.h> | |
42 | #include <stdlib.h> | |
43 | #include <windows.h> | |
44 | #include <imagehlp.h> | |
45 | #include <sys/cygwin.h> | |
cad9cd60 | 46 | |
24e60978 | 47 | #include "buildsym.h" |
1ef980b9 SC |
48 | #include "symfile.h" |
49 | #include "objfiles.h" | |
24e60978 | 50 | #include "gdb_string.h" |
fdfa3315 | 51 | #include "gdbthread.h" |
24e60978 | 52 | #include "gdbcmd.h" |
1750a5ef | 53 | #include <sys/param.h> |
1e37c281 | 54 | #include <unistd.h> |
4646aa9d | 55 | #include "exec.h" |
3ee6f623 | 56 | #include "solist.h" |
24e60978 | 57 | |
6c7de422 MK |
58 | #include "i386-tdep.h" |
59 | #include "i387-tdep.h" | |
60 | ||
3ee6f623 CF |
61 | static struct target_ops win32_ops; |
62 | static struct target_so_ops win32_so_ops; | |
63 | ||
0714f9bf SS |
64 | /* If we're not using the old Cygwin header file set, define the |
65 | following which never should have been in the generic Win32 API | |
66 | headers in the first place since they were our own invention... */ | |
67 | #ifndef _GNU_H_WINDOWS_H | |
9d3789f7 | 68 | enum |
8e860359 CF |
69 | { |
70 | FLAG_TRACE_BIT = 0x100, | |
71 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
72 | }; | |
0714f9bf | 73 | #endif |
8e860359 CF |
74 | #include <sys/procfs.h> |
75 | #include <psapi.h> | |
0714f9bf | 76 | |
fa4ba8da PM |
77 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
78 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 79 | |
fa4ba8da | 80 | static unsigned dr[8]; |
87a45c96 CF |
81 | static int debug_registers_changed; |
82 | static int debug_registers_used; | |
97da3b20 | 83 | |
3cee93ac CF |
84 | /* The string sent by cygwin when it processes a signal. |
85 | FIXME: This should be in a cygwin include file. */ | |
86 | #define CYGWIN_SIGNAL_STRING "cygwin: signal" | |
87 | ||
29fe111d | 88 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 89 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
90 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
91 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
92 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 93 | |
3ee6f623 CF |
94 | static void win32_stop (void); |
95 | static int win32_win32_thread_alive (ptid_t); | |
96 | static void win32_kill_inferior (void); | |
3cee93ac | 97 | |
7393af7c PM |
98 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
99 | /* Set if a signal was received from the debugged process */ | |
100 | ||
3cee93ac CF |
101 | /* Thread information structure used to track information that is |
102 | not available in gdb's thread structure. */ | |
103 | typedef struct thread_info_struct | |
3a4b77d8 JM |
104 | { |
105 | struct thread_info_struct *next; | |
106 | DWORD id; | |
107 | HANDLE h; | |
108 | char *name; | |
109 | int suspend_count; | |
3ade5333 | 110 | int reload_context; |
3a4b77d8 | 111 | CONTEXT context; |
1e37c281 | 112 | STACKFRAME sf; |
8e860359 CF |
113 | } |
114 | thread_info; | |
1e37c281 | 115 | |
29fe111d | 116 | static thread_info thread_head; |
24e60978 | 117 | |
24e60978 SC |
118 | /* The process and thread handles for the above context. */ |
119 | ||
3cee93ac CF |
120 | static DEBUG_EVENT current_event; /* The current debug event from |
121 | WaitForDebugEvent */ | |
122 | static HANDLE current_process_handle; /* Currently executing process */ | |
123 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 124 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 SC |
125 | |
126 | /* Counts of things. */ | |
127 | static int exception_count = 0; | |
128 | static int event_count = 0; | |
dfe7f3ac | 129 | static int saw_create; |
24e60978 SC |
130 | |
131 | /* User options. */ | |
132 | static int new_console = 0; | |
1e37c281 | 133 | static int new_group = 1; |
dfe7f3ac CF |
134 | static int debug_exec = 0; /* show execution */ |
135 | static int debug_events = 0; /* show events from kernel */ | |
136 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 137 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
138 | static int useshell = 0; /* use shell for subprocesses */ |
139 | ||
24e60978 | 140 | /* This vector maps GDB's idea of a register's number into an address |
3cee93ac | 141 | in the win32 exception context vector. |
24e60978 | 142 | |
3cee93ac | 143 | It also contains the bit mask needed to load the register in question. |
24e60978 SC |
144 | |
145 | One day we could read a reg, we could inspect the context we | |
146 | already have loaded, if it doesn't have the bit set that we need, | |
147 | we read that set of registers in using GetThreadContext. If the | |
148 | context already contains what we need, we just unpack it. Then to | |
149 | write a register, first we have to ensure that the context contains | |
150 | the other regs of the group, and then we copy the info in and set | |
151 | out bit. */ | |
152 | ||
3cee93ac CF |
153 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) |
154 | static const int mappings[] = | |
24e60978 | 155 | { |
3a4b77d8 JM |
156 | context_offset (Eax), |
157 | context_offset (Ecx), | |
158 | context_offset (Edx), | |
159 | context_offset (Ebx), | |
160 | context_offset (Esp), | |
161 | context_offset (Ebp), | |
162 | context_offset (Esi), | |
163 | context_offset (Edi), | |
164 | context_offset (Eip), | |
165 | context_offset (EFlags), | |
166 | context_offset (SegCs), | |
167 | context_offset (SegSs), | |
168 | context_offset (SegDs), | |
169 | context_offset (SegEs), | |
170 | context_offset (SegFs), | |
171 | context_offset (SegGs), | |
172 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
173 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
174 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
175 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
176 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
177 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
178 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
179 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
1e37c281 JM |
180 | context_offset (FloatSave.ControlWord), |
181 | context_offset (FloatSave.StatusWord), | |
182 | context_offset (FloatSave.TagWord), | |
183 | context_offset (FloatSave.ErrorSelector), | |
184 | context_offset (FloatSave.ErrorOffset), | |
185 | context_offset (FloatSave.DataSelector), | |
186 | context_offset (FloatSave.DataOffset), | |
d3a09475 | 187 | context_offset (FloatSave.ErrorSelector) |
97da3b20 | 188 | /* XMM0-7 */ , |
441532d7 PM |
189 | context_offset (ExtendedRegisters[10*16]), |
190 | context_offset (ExtendedRegisters[11*16]), | |
191 | context_offset (ExtendedRegisters[12*16]), | |
192 | context_offset (ExtendedRegisters[13*16]), | |
193 | context_offset (ExtendedRegisters[14*16]), | |
194 | context_offset (ExtendedRegisters[15*16]), | |
195 | context_offset (ExtendedRegisters[16*16]), | |
196 | context_offset (ExtendedRegisters[17*16]), | |
197 | /* MXCSR */ | |
198 | context_offset (ExtendedRegisters[24]) | |
24e60978 SC |
199 | }; |
200 | ||
d3a09475 JM |
201 | #undef context_offset |
202 | ||
24e60978 SC |
203 | /* This vector maps the target's idea of an exception (extracted |
204 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
205 | ||
206 | struct xlate_exception | |
207 | { | |
208 | int them; | |
209 | enum target_signal us; | |
210 | }; | |
211 | ||
24e60978 SC |
212 | static const struct xlate_exception |
213 | xlate[] = | |
214 | { | |
215 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 216 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
217 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
218 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
219 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
7393af7c | 220 | {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE}, |
24e60978 SC |
221 | {-1, -1}}; |
222 | ||
fa4ba8da PM |
223 | static void |
224 | check (BOOL ok, const char *file, int line) | |
225 | { | |
226 | if (!ok) | |
dfe7f3ac | 227 | printf_filtered ("error return %s:%d was %lu\n", file, line, |
fa4ba8da PM |
228 | GetLastError ()); |
229 | } | |
230 | ||
3cee93ac CF |
231 | /* Find a thread record given a thread id. |
232 | If get_context then also retrieve the context for this | |
233 | thread. */ | |
234 | static thread_info * | |
235 | thread_rec (DWORD id, int get_context) | |
24e60978 | 236 | { |
3cee93ac CF |
237 | thread_info *th; |
238 | ||
3a4b77d8 | 239 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
240 | if (th->id == id) |
241 | { | |
242 | if (!th->suspend_count && get_context) | |
243 | { | |
8a892701 | 244 | if (get_context > 0 && id != current_event.dwThreadId) |
3cee93ac CF |
245 | th->suspend_count = SuspendThread (th->h) + 1; |
246 | else if (get_context < 0) | |
247 | th->suspend_count = -1; | |
3ade5333 | 248 | th->reload_context = 1; |
3cee93ac CF |
249 | } |
250 | return th; | |
251 | } | |
252 | ||
253 | return NULL; | |
254 | } | |
255 | ||
256 | /* Add a thread to the thread list */ | |
257 | static thread_info * | |
3ee6f623 | 258 | win32_add_thread (DWORD id, HANDLE h) |
3cee93ac CF |
259 | { |
260 | thread_info *th; | |
261 | ||
262 | if ((th = thread_rec (id, FALSE))) | |
263 | return th; | |
264 | ||
265 | th = (thread_info *) xmalloc (sizeof (*th)); | |
3a4b77d8 | 266 | memset (th, 0, sizeof (*th)); |
3cee93ac CF |
267 | th->id = id; |
268 | th->h = h; | |
269 | th->next = thread_head.next; | |
270 | thread_head.next = th; | |
39f77062 | 271 | add_thread (pid_to_ptid (id)); |
dfe7f3ac | 272 | /* Set the debug registers for the new thread in they are used. */ |
fa4ba8da PM |
273 | if (debug_registers_used) |
274 | { | |
275 | /* Only change the value of the debug registers. */ | |
276 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
277 | CHECK (GetThreadContext (th->h, &th->context)); | |
278 | th->context.Dr0 = dr[0]; | |
279 | th->context.Dr1 = dr[1]; | |
280 | th->context.Dr2 = dr[2]; | |
281 | th->context.Dr3 = dr[3]; | |
282 | /* th->context.Dr6 = dr[6]; | |
283 | FIXME: should we set dr6 also ?? */ | |
284 | th->context.Dr7 = dr[7]; | |
285 | CHECK (SetThreadContext (th->h, &th->context)); | |
286 | th->context.ContextFlags = 0; | |
287 | } | |
3cee93ac | 288 | return th; |
24e60978 SC |
289 | } |
290 | ||
3cee93ac CF |
291 | /* Clear out any old thread list and reintialize it to a |
292 | pristine state. */ | |
24e60978 | 293 | static void |
3ee6f623 | 294 | win32_init_thread_list (void) |
24e60978 | 295 | { |
3cee93ac CF |
296 | thread_info *th = &thread_head; |
297 | ||
3ee6f623 | 298 | DEBUG_EVENTS (("gdb: win32_init_thread_list\n")); |
3cee93ac CF |
299 | init_thread_list (); |
300 | while (th->next != NULL) | |
24e60978 | 301 | { |
3cee93ac CF |
302 | thread_info *here = th->next; |
303 | th->next = here->next; | |
304 | (void) CloseHandle (here->h); | |
b8c9b27d | 305 | xfree (here); |
24e60978 | 306 | } |
059198c1 | 307 | thread_head.next = NULL; |
3cee93ac CF |
308 | } |
309 | ||
310 | /* Delete a thread from the list of threads */ | |
311 | static void | |
3ee6f623 | 312 | win32_delete_thread (DWORD id) |
3cee93ac CF |
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 | 334 | static void |
3ee6f623 | 335 | do_win32_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; |
23a6d369 | 364 | regcache_raw_supply (current_regcache, r, (char *) &l); |
1e37c281 | 365 | } |
6c7de422 | 366 | else if (r == I387_FOP_REGNUM) |
1e37c281 | 367 | { |
8e860359 | 368 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
23a6d369 | 369 | regcache_raw_supply (current_regcache, r, (char *) &l); |
1e37c281 JM |
370 | } |
371 | else if (r >= 0) | |
23a6d369 | 372 | regcache_raw_supply (current_regcache, r, context_offset); |
3cee93ac | 373 | else |
24e60978 SC |
374 | { |
375 | for (r = 0; r < NUM_REGS; r++) | |
3ee6f623 | 376 | do_win32_fetch_inferior_registers (r); |
24e60978 | 377 | } |
6c7de422 MK |
378 | |
379 | #undef I387_ST0_REGNUM | |
3cee93ac CF |
380 | } |
381 | ||
382 | static void | |
3ee6f623 | 383 | win32_fetch_inferior_registers (int r) |
3cee93ac | 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 | 388 | if (current_thread) |
3ee6f623 | 389 | do_win32_fetch_inferior_registers (r); |
3cee93ac CF |
390 | } |
391 | ||
392 | static void | |
3ee6f623 | 393 | do_win32_store_inferior_registers (int r) |
3cee93ac | 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) |
822c9732 AC |
398 | regcache_raw_collect (current_regcache, r, |
399 | ((char *) ¤t_thread->context) + mappings[r]); | |
24e60978 SC |
400 | else |
401 | { | |
3cee93ac | 402 | for (r = 0; r < NUM_REGS; r++) |
3ee6f623 | 403 | do_win32_store_inferior_registers (r); |
24e60978 SC |
404 | } |
405 | } | |
406 | ||
3cee93ac CF |
407 | /* Store a new register value into the current thread context */ |
408 | static void | |
3ee6f623 | 409 | win32_store_inferior_registers (int r) |
3cee93ac | 410 | { |
39f77062 | 411 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
d6dc8049 CF |
412 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
413 | thread id in its events */ | |
3ade5333 | 414 | if (current_thread) |
3ee6f623 | 415 | do_win32_store_inferior_registers (r); |
3cee93ac | 416 | } |
24e60978 | 417 | |
1e37c281 JM |
418 | static int psapi_loaded = 0; |
419 | static HMODULE psapi_module_handle = NULL; | |
8e860359 CF |
420 | static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, LPDWORD) = NULL; |
421 | static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD) = NULL; | |
422 | static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD) = NULL; | |
1e37c281 | 423 | |
3ee6f623 | 424 | static int |
8e860359 | 425 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) |
1e37c281 JM |
426 | { |
427 | DWORD len; | |
428 | MODULEINFO mi; | |
429 | int i; | |
8e860359 CF |
430 | HMODULE dh_buf[1]; |
431 | HMODULE *DllHandle = dh_buf; | |
1e37c281 JM |
432 | DWORD cbNeeded; |
433 | BOOL ok; | |
434 | ||
435 | if (!psapi_loaded || | |
8e860359 CF |
436 | psapi_EnumProcessModules == NULL || |
437 | psapi_GetModuleInformation == NULL || | |
438 | psapi_GetModuleFileNameExA == NULL) | |
1e37c281 | 439 | { |
8e860359 CF |
440 | if (psapi_loaded) |
441 | goto failed; | |
1e37c281 JM |
442 | psapi_loaded = 1; |
443 | psapi_module_handle = LoadLibrary ("psapi.dll"); | |
444 | if (!psapi_module_handle) | |
8e860359 CF |
445 | { |
446 | /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */ | |
447 | goto failed; | |
448 | } | |
449 | psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules"); | |
1e37c281 JM |
450 | psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation"); |
451 | psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, | |
8e860359 CF |
452 | "GetModuleFileNameExA"); |
453 | if (psapi_EnumProcessModules == NULL || | |
454 | psapi_GetModuleInformation == NULL || | |
455 | psapi_GetModuleFileNameExA == NULL) | |
1e37c281 JM |
456 | goto failed; |
457 | } | |
458 | ||
459 | cbNeeded = 0; | |
460 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
461 | DllHandle, |
462 | sizeof (HMODULE), | |
463 | &cbNeeded); | |
1e37c281 JM |
464 | |
465 | if (!ok || !cbNeeded) | |
466 | goto failed; | |
467 | ||
8e860359 | 468 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
469 | if (!DllHandle) |
470 | goto failed; | |
471 | ||
472 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
473 | DllHandle, |
474 | cbNeeded, | |
475 | &cbNeeded); | |
1e37c281 JM |
476 | if (!ok) |
477 | goto failed; | |
478 | ||
29fe111d | 479 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 JM |
480 | { |
481 | if (!(*psapi_GetModuleInformation) (current_process_handle, | |
8e860359 CF |
482 | DllHandle[i], |
483 | &mi, | |
484 | sizeof (mi))) | |
8a3fe4f8 | 485 | error (_("Can't get module info")); |
1e37c281 JM |
486 | |
487 | len = (*psapi_GetModuleFileNameExA) (current_process_handle, | |
8e860359 CF |
488 | DllHandle[i], |
489 | dll_name_ret, | |
490 | MAX_PATH); | |
1e37c281 | 491 | if (len == 0) |
8a3fe4f8 | 492 | error (_("Error getting dll name: %u."), (unsigned) GetLastError ()); |
1e37c281 JM |
493 | |
494 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
495 | return 1; | |
496 | } | |
497 | ||
498 | failed: | |
499 | dll_name_ret[0] = '\0'; | |
500 | return 0; | |
501 | } | |
502 | ||
450005e7 CF |
503 | /* Encapsulate the information required in a call to |
504 | symbol_file_add_args */ | |
8a892701 CF |
505 | struct safe_symbol_file_add_args |
506 | { | |
507 | char *name; | |
508 | int from_tty; | |
509 | struct section_addr_info *addrs; | |
510 | int mainline; | |
511 | int flags; | |
7c5c87c0 | 512 | struct ui_file *err, *out; |
8a892701 CF |
513 | struct objfile *ret; |
514 | }; | |
515 | ||
3ee6f623 | 516 | /*CGF*/ |
02e423b9 | 517 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 518 | struct lm_info |
02e423b9 | 519 | { |
02e423b9 | 520 | DWORD load_addr; |
5633f842 | 521 | DWORD end_addr; |
3ee6f623 CF |
522 | }; |
523 | ||
524 | static struct so_list 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 | { | |
3ee6f623 CF |
531 | #define p ((struct safe_symbol_file_add_args *) argv) |
532 | struct so_list *so = &solib_start; | |
02e423b9 | 533 | |
8a892701 CF |
534 | p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags); |
535 | return !!p->ret; | |
536 | #undef p | |
537 | } | |
538 | ||
450005e7 | 539 | /* Restore gdb's stderr after calling symbol_file_add */ |
8a892701 | 540 | static void |
7c5c87c0 | 541 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 542 | { |
8e860359 | 543 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 544 | gdb_flush (gdb_stderr); |
7c5c87c0 | 545 | gdb_flush (gdb_stdout); |
d3ff4a77 | 546 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 547 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 548 | gdb_stderr = sp->err; |
9d3789f7 | 549 | gdb_stdout = sp->out; |
8e860359 | 550 | #undef sp |
8a892701 CF |
551 | } |
552 | ||
450005e7 | 553 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
554 | static struct objfile * |
555 | safe_symbol_file_add (char *name, int from_tty, | |
556 | struct section_addr_info *addrs, | |
557 | int mainline, int flags) | |
8a892701 CF |
558 | { |
559 | struct safe_symbol_file_add_args p; | |
560 | struct cleanup *cleanup; | |
561 | ||
7c5c87c0 | 562 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 563 | |
7c5c87c0 CF |
564 | p.err = gdb_stderr; |
565 | p.out = gdb_stdout; | |
450005e7 | 566 | gdb_flush (gdb_stderr); |
7c5c87c0 | 567 | gdb_flush (gdb_stdout); |
d3ff4a77 | 568 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 569 | gdb_stdout = ui_file_new (); |
8a892701 CF |
570 | p.name = name; |
571 | p.from_tty = from_tty; | |
572 | p.addrs = addrs; | |
573 | p.mainline = mainline; | |
574 | p.flags = flags; | |
575 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
576 | ||
577 | do_cleanups (cleanup); | |
578 | return p.ret; | |
579 | } | |
580 | ||
450005e7 | 581 | /* Remember the maximum DLL length for printing in info dll command. */ |
3ee6f623 | 582 | static int max_dll_name_len; |
450005e7 | 583 | |
8e860359 CF |
584 | static void |
585 | register_loaded_dll (const char *name, DWORD load_addr) | |
586 | { | |
3ee6f623 | 587 | struct so_list *so; |
7470a420 | 588 | char ppath[MAX_PATH + 1]; |
3f8ad85b CF |
589 | char buf[MAX_PATH + 1]; |
590 | char cwd[MAX_PATH + 1]; | |
591 | char *p; | |
592 | WIN32_FIND_DATA w32_fd; | |
593 | HANDLE h = FindFirstFile(name, &w32_fd); | |
5633f842 | 594 | MEMORY_BASIC_INFORMATION m; |
3f8ad85b CF |
595 | size_t len; |
596 | ||
6badb179 CF |
597 | if (h == INVALID_HANDLE_VALUE) |
598 | strcpy (buf, name); | |
599 | else | |
3f8ad85b | 600 | { |
c914e0cc CF |
601 | FindClose (h); |
602 | strcpy (buf, name); | |
603 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
604 | { | |
605 | p = strrchr (buf, '\\'); | |
606 | if (p) | |
607 | p[1] = '\0'; | |
608 | SetCurrentDirectory (buf); | |
609 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
610 | SetCurrentDirectory (cwd); | |
611 | } | |
3f8ad85b CF |
612 | } |
613 | ||
3ee6f623 CF |
614 | if (strcasecmp (buf, "ntdll.dll") == 0) |
615 | { | |
616 | GetSystemDirectory (buf, sizeof (buf)); | |
617 | strcat (buf, "\\ntdll.dll"); | |
618 | } | |
3f8ad85b | 619 | cygwin_conv_to_posix_path (buf, ppath); |
3ee6f623 CF |
620 | so = (struct so_list *) xmalloc (sizeof (struct so_list) + strlen (ppath) + 8 + 1); |
621 | memset (so, 0, sizeof (*so)); | |
622 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); | |
623 | so->lm_info->load_addr = load_addr; | |
e325dcec CF |
624 | if (VirtualQueryEx (current_process_handle, (void *) load_addr, &m, |
625 | sizeof (m))) | |
3ee6f623 | 626 | so->lm_info->end_addr = (DWORD) m.AllocationBase + m.RegionSize; |
5633f842 | 627 | else |
3ee6f623 | 628 | so->lm_info->end_addr = load_addr + 0x2000; /* completely arbitrary */ |
5633f842 | 629 | |
d3ff4a77 | 630 | so->next = NULL; |
3ee6f623 | 631 | strcpy (so->so_name, ppath); |
8e860359 CF |
632 | |
633 | solib_end->next = so; | |
634 | solib_end = so; | |
3f8ad85b CF |
635 | len = strlen (ppath); |
636 | if (len > max_dll_name_len) | |
637 | max_dll_name_len = len; | |
8e860359 CF |
638 | } |
639 | ||
3ee6f623 | 640 | static char * |
dfe7f3ac CF |
641 | get_image_name (HANDLE h, void *address, int unicode) |
642 | { | |
643 | static char buf[(2 * MAX_PATH) + 1]; | |
644 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
645 | char *address_ptr; | |
646 | int len = 0; | |
647 | char b[2]; | |
648 | DWORD done; | |
649 | ||
650 | /* Attempt to read the name of the dll that was detected. | |
651 | This is documented to work only when actively debugging | |
652 | a program. It will not work for attached processes. */ | |
653 | if (address == NULL) | |
654 | return NULL; | |
655 | ||
dfe7f3ac CF |
656 | /* See if we could read the address of a string, and that the |
657 | address isn't null. */ | |
9f476a01 | 658 | if (!ReadProcessMemory (h, address, &address_ptr, sizeof (address_ptr), &done) |
6f17862b | 659 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
660 | return NULL; |
661 | ||
662 | /* Find the length of the string */ | |
6f17862b CF |
663 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
664 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
665 | continue; | |
dfe7f3ac CF |
666 | |
667 | if (!unicode) | |
668 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
669 | else | |
670 | { | |
671 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
672 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
673 | &done); | |
674 | ||
675 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
676 | } | |
677 | ||
678 | return buf; | |
679 | } | |
680 | ||
24e60978 SC |
681 | /* Wait for child to do something. Return pid of child, or -1 in case |
682 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 683 | static int |
0a65a603 | 684 | handle_load_dll (void *dummy) |
24e60978 | 685 | { |
3a4b77d8 | 686 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
3cee93ac | 687 | char dll_buf[MAX_PATH + 1]; |
450005e7 | 688 | char *dll_name = NULL; |
450005e7 | 689 | char *p; |
3cee93ac | 690 | |
3a4b77d8 | 691 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 692 | |
1e37c281 | 693 | if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf)) |
8e860359 | 694 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 695 | |
1e37c281 | 696 | dll_name = dll_buf; |
24e60978 | 697 | |
dfe7f3ac CF |
698 | if (*dll_name == '\0') |
699 | dll_name = get_image_name (current_process_handle, event->lpImageName, event->fUnicode); | |
3cee93ac CF |
700 | if (!dll_name) |
701 | return 1; | |
702 | ||
8e860359 | 703 | register_loaded_dll (dll_name, (DWORD) event->lpBaseOfDll + 0x1000); |
450005e7 CF |
704 | |
705 | return 1; | |
706 | } | |
707 | ||
3ee6f623 CF |
708 | static void |
709 | win32_free_so (struct so_list *so) | |
710 | { | |
711 | if (so->objfile) | |
712 | free_objfile (so->objfile); | |
713 | if (so->lm_info) | |
714 | xfree (so->lm_info); | |
715 | } | |
716 | ||
717 | static struct so_list * | |
718 | win32_current_sos (void) | |
719 | { | |
720 | return solib_start.next; | |
721 | } | |
722 | ||
723 | static void | |
724 | win32_relocate_section_addresses (struct so_list *so, | |
725 | struct section_table *sec) | |
726 | { | |
727 | /* FIXME */ | |
728 | return; | |
729 | } | |
730 | ||
d3ff4a77 | 731 | static int |
0a65a603 | 732 | handle_unload_dll (void *dummy) |
d3ff4a77 CF |
733 | { |
734 | DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll + 0x1000; | |
3ee6f623 | 735 | struct so_list *so; |
d3ff4a77 CF |
736 | |
737 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 738 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 739 | { |
3ee6f623 | 740 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
741 | so->next = sodel->next; |
742 | if (!so->next) | |
743 | solib_end = so; | |
3ee6f623 | 744 | free_so (sodel); |
d3ff4a77 CF |
745 | return 1; |
746 | } | |
8a3fe4f8 | 747 | error (_("Error: dll starting at 0x%lx not found."), (DWORD) lpBaseOfDll); |
d3ff4a77 CF |
748 | |
749 | return 0; | |
750 | } | |
751 | ||
450005e7 | 752 | /* Clear list of loaded DLLs. */ |
3ee6f623 CF |
753 | static void |
754 | win32_clear_solib (void) | |
450005e7 | 755 | { |
3ee6f623 | 756 | struct so_list *so, *so1 = solib_start.next; |
450005e7 CF |
757 | |
758 | solib_start.next = NULL; | |
759 | solib_end = &solib_start; | |
760 | max_dll_name_len = sizeof ("DLL Name") - 1; | |
761 | } | |
295732ea | 762 | |
450005e7 CF |
763 | /* Load DLL symbol info. */ |
764 | void | |
7470a420 | 765 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 766 | { |
8e860359 | 767 | int n; |
450005e7 | 768 | dont_repeat (); |
8e860359 | 769 | |
450005e7 | 770 | if (args == NULL) |
8a3fe4f8 | 771 | error (_("dll-symbols requires a file name")); |
450005e7 | 772 | |
8e860359 CF |
773 | n = strlen (args); |
774 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
775 | { | |
776 | char *newargs = (char *) alloca (n + 4 + 1); | |
777 | strcpy (newargs, args); | |
778 | strcat (newargs, ".dll"); | |
779 | args = newargs; | |
780 | } | |
781 | ||
7470a420 | 782 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 783 | } |
450005e7 CF |
784 | |
785 | /* List currently loaded DLLs. */ | |
3ee6f623 | 786 | static void |
0a65a603 | 787 | info_dll_command (char *ignore, int from_tty) |
450005e7 | 788 | { |
3ee6f623 | 789 | struct so_list *so = &solib_start; |
450005e7 CF |
790 | |
791 | if (!so->next) | |
792 | return; | |
793 | ||
dfe7f3ac | 794 | printf_filtered ("%*s Load Address\n", -max_dll_name_len, "DLL Name"); |
450005e7 | 795 | while ((so = so->next) != NULL) |
3ee6f623 | 796 | printf_filtered ("%*s %08lx\n", -max_dll_name_len, so->so_name, so->lm_info->load_addr); |
450005e7 CF |
797 | |
798 | return; | |
24e60978 SC |
799 | } |
800 | ||
3cee93ac CF |
801 | /* Handle DEBUG_STRING output from child process. |
802 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
803 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
804 | static int | |
805 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
806 | { | |
807 | char *s; | |
808 | int gotasig = FALSE; | |
809 | ||
810 | if (!target_read_string | |
3a4b77d8 | 811 | ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0) |
3cee93ac CF |
812 | || !s || !*s) |
813 | return gotasig; | |
814 | ||
d3a09475 | 815 | if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0) |
3cee93ac | 816 | { |
d3a09475 | 817 | if (strncmp (s, "cYg", 3) != 0) |
8a3fe4f8 | 818 | warning (("%s"), s); |
3cee93ac | 819 | } |
d3a09475 | 820 | else |
3cee93ac CF |
821 | { |
822 | char *p; | |
1e37c281 JM |
823 | int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
824 | gotasig = target_signal_from_host (sig); | |
0714f9bf SS |
825 | ourstatus->value.sig = gotasig; |
826 | if (gotasig) | |
3cee93ac CF |
827 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
828 | } | |
829 | ||
b8c9b27d | 830 | xfree (s); |
3cee93ac CF |
831 | return gotasig; |
832 | } | |
24e60978 | 833 | |
c1748f97 PM |
834 | static int |
835 | display_selector (HANDLE thread, DWORD sel) | |
836 | { | |
837 | LDT_ENTRY info; | |
838 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
839 | { | |
840 | int base, limit; | |
841 | printf_filtered ("0x%03lx: ", sel); | |
842 | if (!info.HighWord.Bits.Pres) | |
baa93fa6 CF |
843 | { |
844 | puts_filtered ("Segment not present\n"); | |
845 | return 0; | |
846 | } | |
c1748f97 PM |
847 | base = (info.HighWord.Bits.BaseHi << 24) + |
848 | (info.HighWord.Bits.BaseMid << 16) | |
849 | + info.BaseLow; | |
850 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
851 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 852 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
853 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
854 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 855 | puts_filtered(" 32-bit "); |
c1748f97 | 856 | else |
baa93fa6 | 857 | puts_filtered(" 16-bit "); |
c1748f97 PM |
858 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
859 | { | |
860 | case 0: | |
baa93fa6 CF |
861 | puts_filtered ("Data (Read-Only, Exp-up"); |
862 | break; | |
c1748f97 | 863 | case 1: |
baa93fa6 CF |
864 | puts_filtered ("Data (Read/Write, Exp-up"); |
865 | break; | |
c1748f97 | 866 | case 2: |
baa93fa6 CF |
867 | puts_filtered ("Unused segment ("); |
868 | break; | |
c1748f97 | 869 | case 3: |
baa93fa6 CF |
870 | puts_filtered ("Data (Read/Write, Exp-down"); |
871 | break; | |
c1748f97 | 872 | case 4: |
baa93fa6 CF |
873 | puts_filtered ("Code (Exec-Only, N.Conf"); |
874 | break; | |
c1748f97 | 875 | case 5: |
baa93fa6 | 876 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
877 | break; |
878 | case 6: | |
baa93fa6 | 879 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
880 | break; |
881 | case 7: | |
baa93fa6 | 882 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
883 | break; |
884 | default: | |
885 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
886 | } | |
887 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 888 | puts_filtered(", N.Acc"); |
c1748f97 PM |
889 | puts_filtered (")\n"); |
890 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
891 | puts_filtered("System selector "); | |
892 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
893 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 894 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
895 | else |
896 | puts_filtered ("Byte granular.\n"); | |
897 | return 1; | |
898 | } | |
899 | else | |
900 | { | |
901 | printf_filtered ("Invalid selector 0x%lx.\n",sel); | |
902 | return 0; | |
903 | } | |
904 | } | |
905 | ||
906 | static void | |
907 | display_selectors (char * args, int from_tty) | |
908 | { | |
909 | if (!current_thread) | |
910 | { | |
911 | puts_filtered ("Impossible to display selectors now.\n"); | |
912 | return; | |
913 | } | |
914 | if (!args) | |
915 | { | |
916 | ||
917 | puts_filtered ("Selector $cs\n"); | |
918 | display_selector (current_thread->h, | |
baa93fa6 | 919 | current_thread->context.SegCs); |
c1748f97 PM |
920 | puts_filtered ("Selector $ds\n"); |
921 | display_selector (current_thread->h, | |
baa93fa6 | 922 | current_thread->context.SegDs); |
c1748f97 PM |
923 | puts_filtered ("Selector $es\n"); |
924 | display_selector (current_thread->h, | |
baa93fa6 | 925 | current_thread->context.SegEs); |
c1748f97 PM |
926 | puts_filtered ("Selector $ss\n"); |
927 | display_selector (current_thread->h, | |
baa93fa6 | 928 | current_thread->context.SegSs); |
c1748f97 PM |
929 | puts_filtered ("Selector $fs\n"); |
930 | display_selector (current_thread->h, | |
931 | current_thread->context.SegFs); | |
932 | puts_filtered ("Selector $gs\n"); | |
933 | display_selector (current_thread->h, | |
baa93fa6 | 934 | current_thread->context.SegGs); |
c1748f97 PM |
935 | } |
936 | else | |
937 | { | |
938 | int sel; | |
939 | sel = parse_and_eval_long (args); | |
940 | printf_filtered ("Selector \"%s\"\n",args); | |
941 | display_selector (current_thread->h, sel); | |
942 | } | |
943 | } | |
944 | ||
945 | static struct cmd_list_element *info_w32_cmdlist = NULL; | |
946 | ||
947 | static void | |
948 | info_w32_command (char *args, int from_tty) | |
949 | { | |
950 | help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout); | |
951 | } | |
952 | ||
953 | ||
7393af7c | 954 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
4e52d31c | 955 | printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \ |
7393af7c PM |
956 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress) |
957 | ||
36339ecd | 958 | static int |
450005e7 | 959 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 960 | { |
3cee93ac | 961 | thread_info *th; |
29fe111d | 962 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 963 | |
29fe111d | 964 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 965 | |
3cee93ac CF |
966 | /* Record the context of the current thread */ |
967 | th = thread_rec (current_event.dwThreadId, -1); | |
24e60978 | 968 | |
29fe111d | 969 | switch (code) |
24e60978 | 970 | { |
1ef980b9 | 971 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c PM |
972 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
973 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
8da8e0b3 CF |
974 | { |
975 | char *fn; | |
976 | if (find_pc_partial_function ((CORE_ADDR) current_event.u.Exception | |
977 | .ExceptionRecord.ExceptionAddress, | |
978 | &fn, NULL, NULL) | |
979 | && strncmp (fn, "KERNEL32!IsBad", strlen ("KERNEL32!IsBad")) == 0) | |
980 | return 0; | |
981 | } | |
7393af7c PM |
982 | break; |
983 | case STATUS_STACK_OVERFLOW: | |
984 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
1ef980b9 | 985 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
986 | break; |
987 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
988 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
989 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
990 | break; | |
991 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
992 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
993 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
994 | break; | |
995 | case STATUS_FLOAT_INEXACT_RESULT: | |
996 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
997 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
998 | break; | |
999 | case STATUS_FLOAT_INVALID_OPERATION: | |
1000 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1001 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1002 | break; | |
1003 | case STATUS_FLOAT_OVERFLOW: | |
1004 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1005 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1006 | break; | |
1007 | case STATUS_FLOAT_STACK_CHECK: | |
1008 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1009 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 | 1010 | break; |
3b7c8b74 | 1011 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1012 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1013 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1014 | break; | |
3b7c8b74 | 1015 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1016 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1017 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1018 | break; | |
3b7c8b74 | 1019 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1020 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
3b7c8b74 | 1021 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
3b7c8b74 | 1022 | break; |
7393af7c PM |
1023 | case STATUS_INTEGER_OVERFLOW: |
1024 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1025 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 SC |
1026 | break; |
1027 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1028 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
1ef980b9 SC |
1029 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1030 | break; | |
1031 | case DBG_CONTROL_C: | |
7393af7c | 1032 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
1ef980b9 | 1033 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1034 | break; |
1035 | case DBG_CONTROL_BREAK: | |
7393af7c | 1036 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1037 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
1ef980b9 SC |
1038 | break; |
1039 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1040 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
1ef980b9 SC |
1041 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1042 | break; | |
8227c82d | 1043 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1044 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1045 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1046 | break; | |
1047 | case EXCEPTION_PRIV_INSTRUCTION: | |
1048 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1049 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1050 | break; | |
1051 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1052 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1053 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1054 | break; | |
1ef980b9 | 1055 | default: |
02e423b9 CF |
1056 | if (current_event.u.Exception.dwFirstChance) |
1057 | return 0; | |
29fe111d | 1058 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n", |
3a4b77d8 | 1059 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
8e860359 | 1060 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress); |
24e60978 | 1061 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 1062 | break; |
24e60978 | 1063 | } |
24e60978 | 1064 | exception_count++; |
7393af7c | 1065 | last_sig = ourstatus->value.sig; |
36339ecd | 1066 | return 1; |
24e60978 SC |
1067 | } |
1068 | ||
3cee93ac CF |
1069 | /* Resume all artificially suspended threads if we are continuing |
1070 | execution */ | |
1071 | static BOOL | |
3ee6f623 | 1072 | win32_continue (DWORD continue_status, int id) |
3cee93ac CF |
1073 | { |
1074 | int i; | |
1075 | thread_info *th; | |
1076 | BOOL res; | |
1077 | ||
7393af7c PM |
1078 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, %s);\n", |
1079 | current_event.dwProcessId, current_event.dwThreadId, | |
dfe7f3ac | 1080 | continue_status == DBG_CONTINUE ? |
7393af7c | 1081 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
0714f9bf SS |
1082 | res = ContinueDebugEvent (current_event.dwProcessId, |
1083 | current_event.dwThreadId, | |
1084 | continue_status); | |
1e37c281 | 1085 | continue_status = 0; |
0714f9bf | 1086 | if (res) |
3a4b77d8 | 1087 | for (th = &thread_head; (th = th->next) != NULL;) |
29fe111d | 1088 | if (((id == -1) || (id == (int) th->id)) && th->suspend_count) |
3cee93ac | 1089 | { |
fa4ba8da | 1090 | |
3cee93ac CF |
1091 | for (i = 0; i < th->suspend_count; i++) |
1092 | (void) ResumeThread (th->h); | |
1093 | th->suspend_count = 0; | |
fa4ba8da PM |
1094 | if (debug_registers_changed) |
1095 | { | |
3ade5333 | 1096 | /* Only change the value of the debug registers */ |
fa4ba8da PM |
1097 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; |
1098 | th->context.Dr0 = dr[0]; | |
1099 | th->context.Dr1 = dr[1]; | |
1100 | th->context.Dr2 = dr[2]; | |
1101 | th->context.Dr3 = dr[3]; | |
1102 | /* th->context.Dr6 = dr[6]; | |
dfe7f3ac | 1103 | FIXME: should we set dr6 also ?? */ |
fa4ba8da PM |
1104 | th->context.Dr7 = dr[7]; |
1105 | CHECK (SetThreadContext (th->h, &th->context)); | |
1106 | th->context.ContextFlags = 0; | |
1107 | } | |
3cee93ac CF |
1108 | } |
1109 | ||
fa4ba8da | 1110 | debug_registers_changed = 0; |
3cee93ac CF |
1111 | return res; |
1112 | } | |
1113 | ||
d6dc8049 CF |
1114 | /* Called in pathological case where Windows fails to send a |
1115 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1116 | static DWORD |
5439edaa | 1117 | fake_create_process (void) |
3ade5333 CF |
1118 | { |
1119 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1120 | current_event.dwProcessId); | |
1121 | main_thread_id = current_event.dwThreadId; | |
3ee6f623 | 1122 | current_thread = win32_add_thread (main_thread_id, |
3ade5333 CF |
1123 | current_event.u.CreateThread.hThread); |
1124 | return main_thread_id; | |
1125 | } | |
1126 | ||
8a892701 CF |
1127 | /* Get the next event from the child. Return 1 if the event requires |
1128 | handling by WFI (or whatever). | |
1129 | */ | |
1e37c281 | 1130 | static int |
3ee6f623 | 1131 | get_win32_debug_event (int pid, struct target_waitstatus *ourstatus) |
1e37c281 JM |
1132 | { |
1133 | BOOL debug_event; | |
8a892701 | 1134 | DWORD continue_status, event_code; |
87a45c96 | 1135 | thread_info *th; |
8a892701 | 1136 | static thread_info dummy_thread_info; |
450005e7 | 1137 | int retval = 0; |
1e37c281 | 1138 | |
7393af7c | 1139 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1140 | |
8a892701 | 1141 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1142 | goto out; |
1e37c281 JM |
1143 | |
1144 | event_count++; | |
1145 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1146 | |
8a892701 | 1147 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1148 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1149 | th = NULL; |
8a892701 CF |
1150 | |
1151 | switch (event_code) | |
1e37c281 JM |
1152 | { |
1153 | case CREATE_THREAD_DEBUG_EVENT: | |
1154 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1155 | (unsigned) current_event.dwProcessId, |
1156 | (unsigned) current_event.dwThreadId, | |
1157 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1158 | if (saw_create != 1) |
3ade5333 CF |
1159 | { |
1160 | if (!saw_create && attach_flag) | |
1161 | { | |
d6dc8049 CF |
1162 | /* Kludge around a Windows bug where first event is a create |
1163 | thread event. Caused when attached process does not have | |
1164 | a main thread. */ | |
3ade5333 CF |
1165 | retval = ourstatus->value.related_pid = fake_create_process (); |
1166 | saw_create++; | |
1167 | } | |
1168 | break; | |
1169 | } | |
1e37c281 | 1170 | /* Record the existence of this thread */ |
3ee6f623 | 1171 | th = win32_add_thread (current_event.dwThreadId, |
8a892701 | 1172 | current_event.u.CreateThread.hThread); |
1e37c281 JM |
1173 | if (info_verbose) |
1174 | printf_unfiltered ("[New %s]\n", | |
39f77062 KB |
1175 | target_pid_to_str ( |
1176 | pid_to_ptid (current_event.dwThreadId))); | |
450005e7 | 1177 | retval = current_event.dwThreadId; |
1e37c281 JM |
1178 | break; |
1179 | ||
1180 | case EXIT_THREAD_DEBUG_EVENT: | |
1181 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1182 | (unsigned) current_event.dwProcessId, |
1183 | (unsigned) current_event.dwThreadId, | |
1184 | "EXIT_THREAD_DEBUG_EVENT")); | |
87a45c96 CF |
1185 | if (current_event.dwThreadId != main_thread_id) |
1186 | { | |
3ee6f623 | 1187 | win32_delete_thread (current_event.dwThreadId); |
87a45c96 CF |
1188 | th = &dummy_thread_info; |
1189 | } | |
1e37c281 JM |
1190 | break; |
1191 | ||
1192 | case CREATE_PROCESS_DEBUG_EVENT: | |
1193 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1194 | (unsigned) current_event.dwProcessId, |
1195 | (unsigned) current_event.dwThreadId, | |
1196 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1197 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac CF |
1198 | if (++saw_create != 1) |
1199 | { | |
1200 | CloseHandle (current_event.u.CreateProcessInfo.hProcess); | |
1201 | break; | |
1202 | } | |
1e37c281 | 1203 | |
dfe7f3ac | 1204 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1205 | if (main_thread_id) |
3ee6f623 | 1206 | win32_delete_thread (main_thread_id); |
9d3789f7 | 1207 | main_thread_id = current_event.dwThreadId; |
1e37c281 | 1208 | /* Add the main thread */ |
3ee6f623 | 1209 | th = win32_add_thread (main_thread_id, |
8a892701 | 1210 | current_event.u.CreateProcessInfo.hThread); |
9d3789f7 | 1211 | retval = ourstatus->value.related_pid = current_event.dwThreadId; |
1e37c281 JM |
1212 | break; |
1213 | ||
1214 | case EXIT_PROCESS_DEBUG_EVENT: | |
1215 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1216 | (unsigned) current_event.dwProcessId, |
1217 | (unsigned) current_event.dwThreadId, | |
1218 | "EXIT_PROCESS_DEBUG_EVENT")); | |
dfe7f3ac CF |
1219 | if (saw_create != 1) |
1220 | break; | |
1e37c281 JM |
1221 | ourstatus->kind = TARGET_WAITKIND_EXITED; |
1222 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1223 | CloseHandle (current_process_handle); | |
9d3789f7 | 1224 | retval = main_thread_id; |
8a892701 | 1225 | break; |
1e37c281 JM |
1226 | |
1227 | case LOAD_DLL_DEBUG_EVENT: | |
1228 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1229 | (unsigned) current_event.dwProcessId, |
1230 | (unsigned) current_event.dwThreadId, | |
1231 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1232 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1233 | if (saw_create != 1) |
1234 | break; | |
8a892701 | 1235 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
1e37c281 | 1236 | registers_changed (); /* mark all regs invalid */ |
450005e7 CF |
1237 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1238 | ourstatus->value.integer = 0; | |
9d3789f7 | 1239 | retval = main_thread_id; |
5633f842 | 1240 | re_enable_breakpoints_in_shlibs (); |
1e37c281 JM |
1241 | break; |
1242 | ||
1243 | case UNLOAD_DLL_DEBUG_EVENT: | |
1244 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1245 | (unsigned) current_event.dwProcessId, |
1246 | (unsigned) current_event.dwThreadId, | |
1247 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1248 | if (saw_create != 1) |
1249 | break; | |
d3ff4a77 CF |
1250 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
1251 | registers_changed (); /* mark all regs invalid */ | |
1252 | /* ourstatus->kind = TARGET_WAITKIND_UNLOADED; | |
3bccec63 | 1253 | does not exist yet. */ |
d3ff4a77 | 1254 | break; |
1e37c281 JM |
1255 | |
1256 | case EXCEPTION_DEBUG_EVENT: | |
1257 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1258 | (unsigned) current_event.dwProcessId, |
1259 | (unsigned) current_event.dwThreadId, | |
1260 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1261 | if (saw_create != 1) |
1262 | break; | |
02e423b9 CF |
1263 | if (handle_exception (ourstatus)) |
1264 | retval = current_event.dwThreadId; | |
8da8e0b3 CF |
1265 | else |
1266 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1e37c281 JM |
1267 | break; |
1268 | ||
8a892701 | 1269 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
1e37c281 | 1270 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", |
8a892701 CF |
1271 | (unsigned) current_event.dwProcessId, |
1272 | (unsigned) current_event.dwThreadId, | |
1273 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1274 | if (saw_create != 1) |
1275 | break; | |
8e860359 | 1276 | if (handle_output_debug_string (ourstatus)) |
9d3789f7 | 1277 | retval = main_thread_id; |
1e37c281 | 1278 | break; |
9d3789f7 | 1279 | |
1e37c281 | 1280 | default: |
dfe7f3ac CF |
1281 | if (saw_create != 1) |
1282 | break; | |
29fe111d CF |
1283 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1284 | (DWORD) current_event.dwProcessId, | |
1285 | (DWORD) current_event.dwThreadId); | |
1286 | printf_unfiltered (" unknown event code %ld\n", | |
1e37c281 JM |
1287 | current_event.dwDebugEventCode); |
1288 | break; | |
1289 | } | |
1290 | ||
dfe7f3ac | 1291 | if (!retval || saw_create != 1) |
3ee6f623 | 1292 | CHECK (win32_continue (continue_status, -1)); |
450005e7 | 1293 | else |
9d3789f7 | 1294 | { |
39f77062 | 1295 | inferior_ptid = pid_to_ptid (retval); |
3ade5333 | 1296 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1297 | } |
1e37c281 JM |
1298 | |
1299 | out: | |
450005e7 | 1300 | return retval; |
1e37c281 JM |
1301 | } |
1302 | ||
1e37c281 | 1303 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1304 | static ptid_t |
3ee6f623 | 1305 | win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus) |
24e60978 | 1306 | { |
39f77062 KB |
1307 | int pid = PIDGET (ptid); |
1308 | ||
24e60978 SC |
1309 | /* We loop when we get a non-standard exception rather than return |
1310 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1311 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 SC |
1312 | the birth or death of threads, which mean that the current thread |
1313 | isn't necessarily what you think it is. */ | |
1314 | ||
1315 | while (1) | |
450005e7 | 1316 | { |
3ee6f623 | 1317 | int retval = get_win32_debug_event (pid, ourstatus); |
450005e7 | 1318 | if (retval) |
39f77062 | 1319 | return pid_to_ptid (retval); |
450005e7 CF |
1320 | else |
1321 | { | |
1322 | int detach = 0; | |
3cee93ac | 1323 | |
98bbd631 AC |
1324 | if (deprecated_ui_loop_hook != NULL) |
1325 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1326 | |
450005e7 | 1327 | if (detach) |
3ee6f623 | 1328 | win32_kill_inferior (); |
450005e7 CF |
1329 | } |
1330 | } | |
24e60978 SC |
1331 | } |
1332 | ||
9d3789f7 | 1333 | static void |
3ee6f623 | 1334 | do_initial_win32_stuff (DWORD pid) |
9d3789f7 CF |
1335 | { |
1336 | extern int stop_after_trap; | |
fa4ba8da | 1337 | int i; |
9d3789f7 | 1338 | |
7393af7c | 1339 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1340 | event_count = 0; |
1341 | exception_count = 0; | |
fa4ba8da | 1342 | debug_registers_changed = 0; |
dfe7f3ac | 1343 | debug_registers_used = 0; |
fa4ba8da PM |
1344 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1345 | dr[i] = 0; | |
9d3789f7 CF |
1346 | current_event.dwProcessId = pid; |
1347 | memset (¤t_event, 0, sizeof (current_event)); | |
3ee6f623 | 1348 | push_target (&win32_ops); |
5633f842 | 1349 | disable_breakpoints_in_shlibs (1); |
3ee6f623 | 1350 | win32_clear_solib (); |
9d3789f7 CF |
1351 | clear_proceed_status (); |
1352 | init_wait_for_inferior (); | |
1353 | ||
1354 | target_terminal_init (); | |
1355 | target_terminal_inferior (); | |
1356 | ||
1357 | while (1) | |
1358 | { | |
1359 | stop_after_trap = 1; | |
1360 | wait_for_inferior (); | |
1361 | if (stop_signal != TARGET_SIGNAL_TRAP) | |
1362 | resume (0, stop_signal); | |
1363 | else | |
1364 | break; | |
1365 | } | |
1366 | stop_after_trap = 0; | |
1367 | return; | |
1368 | } | |
1369 | ||
02cc9f49 CV |
1370 | /* Since Windows XP, detaching from a process is supported by Windows. |
1371 | The following code tries loading the appropriate functions dynamically. | |
1372 | If loading these functions succeeds use them to actually detach from | |
1373 | the inferior process, otherwise behave as usual, pretending that | |
1374 | detach has worked. */ | |
1375 | static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL); | |
1376 | static BOOL WINAPI (*DebugActiveProcessStop)(DWORD); | |
1377 | ||
1378 | static int | |
5ae5f592 | 1379 | has_detach_ability (void) |
02cc9f49 CV |
1380 | { |
1381 | static HMODULE kernel32 = NULL; | |
1382 | ||
1383 | if (!kernel32) | |
1384 | kernel32 = LoadLibrary ("kernel32.dll"); | |
1385 | if (kernel32) | |
1386 | { | |
1387 | if (!DebugSetProcessKillOnExit) | |
1388 | DebugSetProcessKillOnExit = GetProcAddress (kernel32, | |
1389 | "DebugSetProcessKillOnExit"); | |
1390 | if (!DebugActiveProcessStop) | |
1391 | DebugActiveProcessStop = GetProcAddress (kernel32, | |
1392 | "DebugActiveProcessStop"); | |
1393 | if (DebugSetProcessKillOnExit && DebugActiveProcessStop) | |
1394 | return 1; | |
1395 | } | |
1396 | return 0; | |
1397 | } | |
24e60978 | 1398 | |
616a9dc4 CV |
1399 | /* Try to set or remove a user privilege to the current process. Return -1 |
1400 | if that fails, the previous setting of that privilege otherwise. | |
1401 | ||
1402 | This code is copied from the Cygwin source code and rearranged to allow | |
1403 | dynamically loading of the needed symbols from advapi32 which is only | |
1404 | available on NT/2K/XP. */ | |
1405 | static int | |
1406 | set_process_privilege (const char *privilege, BOOL enable) | |
1407 | { | |
1408 | static HMODULE advapi32 = NULL; | |
1409 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
1410 | static BOOL WINAPI (*LookupPrivilegeValue)(LPCSTR, LPCSTR, PLUID); | |
1411 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, | |
1412 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
1413 | ||
1414 | HANDLE token_hdl = NULL; | |
1415 | LUID restore_priv; | |
1416 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1417 | int ret = -1; | |
1418 | DWORD size; | |
1419 | ||
1420 | if (GetVersion () >= 0x80000000) /* No security availbale on 9x/Me */ | |
1421 | return 0; | |
1422 | ||
1423 | if (!advapi32) | |
1424 | { | |
1425 | if (!(advapi32 = LoadLibrary ("advapi32.dll"))) | |
1426 | goto out; | |
1427 | if (!OpenProcessToken) | |
1428 | OpenProcessToken = GetProcAddress (advapi32, "OpenProcessToken"); | |
1429 | if (!LookupPrivilegeValue) | |
1430 | LookupPrivilegeValue = GetProcAddress (advapi32, | |
1431 | "LookupPrivilegeValueA"); | |
1432 | if (!AdjustTokenPrivileges) | |
1433 | AdjustTokenPrivileges = GetProcAddress (advapi32, | |
1434 | "AdjustTokenPrivileges"); | |
1435 | if (!OpenProcessToken || !LookupPrivilegeValue || !AdjustTokenPrivileges) | |
295732ea | 1436 | { |
616a9dc4 CV |
1437 | advapi32 = NULL; |
1438 | goto out; | |
1439 | } | |
1440 | } | |
295732ea | 1441 | |
616a9dc4 CV |
1442 | if (!OpenProcessToken (GetCurrentProcess (), |
1443 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1444 | &token_hdl)) | |
1445 | goto out; | |
1446 | ||
1447 | if (!LookupPrivilegeValue (NULL, privilege, &restore_priv)) | |
1448 | goto out; | |
1449 | ||
1450 | new_priv.PrivilegeCount = 1; | |
1451 | new_priv.Privileges[0].Luid = restore_priv; | |
1452 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1453 | ||
1454 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1455 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1456 | goto out; |
1457 | #if 0 | |
1458 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1459 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
3ee6f623 | 1460 | win32_attach(). */ |
616a9dc4 CV |
1461 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
1462 | be enabled. GetLastError () returns an correct error code, though. */ | |
1463 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) | |
1464 | goto out; | |
1465 | #endif | |
1466 | ||
1467 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1468 | ||
1469 | out: | |
1470 | if (token_hdl) | |
1471 | CloseHandle (token_hdl); | |
1472 | ||
1473 | return ret; | |
1474 | } | |
1475 | ||
02cc9f49 | 1476 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1477 | static void |
3ee6f623 | 1478 | win32_attach (char *args, int from_tty) |
24e60978 SC |
1479 | { |
1480 | BOOL ok; | |
559e75c0 | 1481 | DWORD pid; |
24e60978 SC |
1482 | |
1483 | if (!args) | |
e2e0b3e5 | 1484 | error_no_arg (_("process-id to attach")); |
24e60978 | 1485 | |
616a9dc4 CV |
1486 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1487 | { | |
1488 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
1489 | printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n"); | |
1490 | } | |
1491 | ||
baa93fa6 CF |
1492 | pid = strtoul (args, 0, 0); /* Windows pid */ |
1493 | ||
3ee6f623 | 1494 | win32_init_thread_list (); |
9d3789f7 | 1495 | ok = DebugActiveProcess (pid); |
91a175b3 | 1496 | saw_create = 0; |
24e60978 SC |
1497 | |
1498 | if (!ok) | |
baa93fa6 CF |
1499 | { |
1500 | /* Try fall back to Cygwin pid */ | |
1501 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); | |
1502 | ||
1503 | if (pid > 0) | |
1504 | ok = DebugActiveProcess (pid); | |
1505 | ||
1506 | if (!ok) | |
8a3fe4f8 | 1507 | error (_("Can't attach to process.")); |
baa93fa6 | 1508 | } |
24e60978 | 1509 | |
02cc9f49 | 1510 | if (has_detach_ability ()) |
3ade5333 CF |
1511 | DebugSetProcessKillOnExit (FALSE); |
1512 | ||
1513 | attach_flag = 1; | |
02cc9f49 | 1514 | |
24e60978 SC |
1515 | if (from_tty) |
1516 | { | |
1517 | char *exec_file = (char *) get_exec_file (0); | |
1518 | ||
1519 | if (exec_file) | |
1520 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1521 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1522 | else |
1523 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1524 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1525 | |
1526 | gdb_flush (gdb_stdout); | |
1527 | } | |
1528 | ||
3ee6f623 | 1529 | do_initial_win32_stuff (pid); |
9d3789f7 | 1530 | target_terminal_ours (); |
24e60978 SC |
1531 | } |
1532 | ||
24e60978 | 1533 | static void |
3ee6f623 | 1534 | win32_detach (char *args, int from_tty) |
24e60978 | 1535 | { |
02cc9f49 CV |
1536 | int detached = 1; |
1537 | ||
1538 | if (has_detach_ability ()) | |
1539 | { | |
1540 | delete_command (NULL, 0); | |
3ee6f623 | 1541 | win32_continue (DBG_CONTINUE, -1); |
02cc9f49 | 1542 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
3bccec63 | 1543 | { |
8a3fe4f8 | 1544 | error (_("Can't detach process %lu (error %lu)"), |
02cc9f49 CV |
1545 | current_event.dwProcessId, GetLastError ()); |
1546 | detached = 0; | |
3bccec63 | 1547 | } |
02cc9f49 CV |
1548 | DebugSetProcessKillOnExit (FALSE); |
1549 | } | |
1550 | if (detached && from_tty) | |
24e60978 SC |
1551 | { |
1552 | char *exec_file = get_exec_file (0); | |
1553 | if (exec_file == 0) | |
1554 | exec_file = ""; | |
02cc9f49 CV |
1555 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1556 | current_event.dwProcessId); | |
24e60978 SC |
1557 | gdb_flush (gdb_stdout); |
1558 | } | |
39f77062 | 1559 | inferior_ptid = null_ptid; |
3ee6f623 | 1560 | unpush_target (&win32_ops); |
24e60978 SC |
1561 | } |
1562 | ||
3ee6f623 CF |
1563 | static char * |
1564 | win32_pid_to_exec_file (int pid) | |
47216e51 CV |
1565 | { |
1566 | /* Try to find the process path using the Cygwin internal process list | |
1567 | pid isn't a valid pid, unfortunately. Use current_event.dwProcessId | |
1568 | instead. */ | |
1569 | /* TODO: Also find native Windows processes using CW_GETPINFO_FULL. */ | |
1570 | ||
1571 | static char path[MAX_PATH + 1]; | |
1572 | char *path_ptr = NULL; | |
1573 | int cpid; | |
1574 | struct external_pinfo *pinfo; | |
1575 | ||
1576 | cygwin_internal (CW_LOCK_PINFO, 1000); | |
1577 | for (cpid = 0; | |
1578 | (pinfo = (struct external_pinfo *) | |
1579 | cygwin_internal (CW_GETPINFO, cpid | CW_NEXTPID)); | |
1580 | cpid = pinfo->pid) | |
1581 | { | |
1582 | if (pinfo->dwProcessId == current_event.dwProcessId) /* Got it */ | |
1583 | { | |
1584 | cygwin_conv_to_full_posix_path (pinfo->progname, path); | |
1585 | path_ptr = path; | |
1586 | break; | |
1587 | } | |
1588 | } | |
1589 | cygwin_internal (CW_UNLOCK_PINFO); | |
1590 | return path_ptr; | |
1591 | } | |
1592 | ||
24e60978 SC |
1593 | /* Print status information about what we're accessing. */ |
1594 | ||
1595 | static void | |
3ee6f623 | 1596 | win32_files_info (struct target_ops *ignore) |
24e60978 SC |
1597 | { |
1598 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
39f77062 | 1599 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid)); |
24e60978 SC |
1600 | } |
1601 | ||
24e60978 | 1602 | static void |
3ee6f623 | 1603 | win32_open (char *arg, int from_tty) |
24e60978 | 1604 | { |
8a3fe4f8 | 1605 | error (_("Use the \"run\" command to start a Unix child process.")); |
24e60978 SC |
1606 | } |
1607 | ||
39f77062 | 1608 | /* Start an inferior win32 child process and sets inferior_ptid to its pid. |
24e60978 SC |
1609 | EXEC_FILE is the file to run. |
1610 | ALLARGS is a string containing the arguments to the program. | |
1611 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1612 | ||
24e60978 | 1613 | static void |
3ee6f623 | 1614 | win32_create_inferior (char *exec_file, char *allargs, char **env, |
c27cda74 | 1615 | int from_tty) |
24e60978 | 1616 | { |
1750a5ef SC |
1617 | char *winenv; |
1618 | char *temp; | |
3a4b77d8 | 1619 | int envlen; |
1750a5ef | 1620 | int i; |
24e60978 SC |
1621 | STARTUPINFO si; |
1622 | PROCESS_INFORMATION pi; | |
24e60978 SC |
1623 | BOOL ret; |
1624 | DWORD flags; | |
eb708f2e | 1625 | char *args; |
dfe7f3ac CF |
1626 | char real_path[MAXPATHLEN]; |
1627 | char *toexec; | |
349b409f CF |
1628 | char shell[MAX_PATH + 1]; /* Path to shell */ |
1629 | const char *sh; | |
2becadee CF |
1630 | int tty; |
1631 | int ostdin, ostdout, ostderr; | |
3cb3b8df | 1632 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
1633 | |
1634 | if (!exec_file) | |
8a3fe4f8 | 1635 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
1636 | |
1637 | memset (&si, 0, sizeof (si)); | |
1638 | si.cb = sizeof (si); | |
1639 | ||
349b409f | 1640 | if (!useshell) |
dfe7f3ac CF |
1641 | { |
1642 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1643 | cygwin_conv_to_win32_path (exec_file, real_path); | |
1644 | toexec = real_path; | |
1645 | } | |
1646 | else | |
1647 | { | |
349b409f CF |
1648 | char *newallargs; |
1649 | sh = getenv ("SHELL"); | |
1650 | if (!sh) | |
1651 | sh = "/bin/sh"; | |
1652 | cygwin_conv_to_win32_path (sh, shell); | |
1653 | newallargs = alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
1654 | + strlen (allargs) + 2); | |
dfe7f3ac CF |
1655 | sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs); |
1656 | allargs = newallargs; | |
1657 | toexec = shell; | |
1658 | flags = DEBUG_PROCESS; | |
1659 | } | |
eb708f2e | 1660 | |
eeb25b8a PM |
1661 | if (new_group) |
1662 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1663 | ||
1664 | if (new_console) | |
1665 | flags |= CREATE_NEW_CONSOLE; | |
1666 | ||
3ade5333 CF |
1667 | attach_flag = 0; |
1668 | ||
dfe7f3ac CF |
1669 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
1670 | strcpy (args, toexec); | |
eb708f2e SC |
1671 | strcat (args, " "); |
1672 | strcat (args, allargs); | |
1673 | ||
e88c49c3 DE |
1674 | /* Prepare the environment vars for CreateProcess. */ |
1675 | { | |
349b409f | 1676 | /* This code used to assume all env vars were file names and would |
e88c49c3 | 1677 | translate them all to win32 style. That obviously doesn't work in the |
2dcfc9c7 DE |
1678 | general case. The current rule is that we only translate PATH. |
1679 | We need to handle PATH because we're about to call CreateProcess and | |
1680 | it uses PATH to find DLL's. Fortunately PATH has a well-defined value | |
1681 | in both posix and win32 environments. cygwin.dll will change it back | |
1682 | to posix style if necessary. */ | |
e88c49c3 DE |
1683 | |
1684 | static const char *conv_path_names[] = | |
3a4b77d8 JM |
1685 | { |
1686 | "PATH=", | |
1687 | 0 | |
1688 | }; | |
e88c49c3 DE |
1689 | |
1690 | /* CreateProcess takes the environment list as a null terminated set of | |
1691 | strings (i.e. two nulls terminate the list). */ | |
1692 | ||
1693 | /* Get total size for env strings. */ | |
1694 | for (envlen = 0, i = 0; env[i] && *env[i]; i++) | |
1695 | { | |
2dcfc9c7 | 1696 | int j, len; |
e88c49c3 | 1697 | |
2dcfc9c7 DE |
1698 | for (j = 0; conv_path_names[j]; j++) |
1699 | { | |
1700 | len = strlen (conv_path_names[j]); | |
1701 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 1702 | { |
29fe111d | 1703 | if (cygwin_posix_path_list_p (env[i] + len)) |
2dcfc9c7 | 1704 | envlen += len |
29fe111d | 1705 | + cygwin_posix_to_win32_path_list_buf_size (env[i] + len); |
2dcfc9c7 DE |
1706 | else |
1707 | envlen += strlen (env[i]) + 1; | |
1708 | break; | |
e88c49c3 | 1709 | } |
e88c49c3 | 1710 | } |
2dcfc9c7 | 1711 | if (conv_path_names[j] == NULL) |
e88c49c3 DE |
1712 | envlen += strlen (env[i]) + 1; |
1713 | } | |
1714 | ||
1715 | winenv = alloca (envlen + 1); | |
1716 | ||
1717 | /* Copy env strings into new buffer. */ | |
3cee93ac | 1718 | for (temp = winenv, i = 0; env[i] && *env[i]; i++) |
e88c49c3 | 1719 | { |
2dcfc9c7 | 1720 | int j, len; |
e88c49c3 | 1721 | |
2dcfc9c7 DE |
1722 | for (j = 0; conv_path_names[j]; j++) |
1723 | { | |
1724 | len = strlen (conv_path_names[j]); | |
1725 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 1726 | { |
29fe111d | 1727 | if (cygwin_posix_path_list_p (env[i] + len)) |
e88c49c3 DE |
1728 | { |
1729 | memcpy (temp, env[i], len); | |
29fe111d | 1730 | cygwin_posix_to_win32_path_list (env[i] + len, temp + len); |
e88c49c3 | 1731 | } |
2dcfc9c7 DE |
1732 | else |
1733 | strcpy (temp, env[i]); | |
1734 | break; | |
e88c49c3 | 1735 | } |
e88c49c3 | 1736 | } |
2dcfc9c7 | 1737 | if (conv_path_names[j] == NULL) |
e88c49c3 | 1738 | strcpy (temp, env[i]); |
2dcfc9c7 | 1739 | |
e88c49c3 DE |
1740 | temp += strlen (temp) + 1; |
1741 | } | |
1742 | ||
1743 | /* Final nil string to terminate new env. */ | |
1744 | *temp = 0; | |
1745 | } | |
1750a5ef | 1746 | |
2becadee CF |
1747 | if (!inferior_io_terminal) |
1748 | tty = ostdin = ostdout = ostderr = -1; | |
1749 | else | |
1750 | { | |
1751 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
1752 | if (tty < 0) | |
1753 | { | |
1754 | print_sys_errmsg (inferior_io_terminal, errno); | |
1755 | ostdin = ostdout = ostderr = -1; | |
1756 | } | |
1757 | else | |
1758 | { | |
1759 | ostdin = dup (0); | |
1760 | ostdout = dup (1); | |
1761 | ostderr = dup (2); | |
1762 | dup2 (tty, 0); | |
1763 | dup2 (tty, 1); | |
1764 | dup2 (tty, 2); | |
1765 | } | |
1766 | } | |
1767 | ||
3ee6f623 | 1768 | win32_init_thread_list (); |
1750a5ef | 1769 | ret = CreateProcess (0, |
3a4b77d8 | 1770 | args, /* command line */ |
24e60978 SC |
1771 | NULL, /* Security */ |
1772 | NULL, /* thread */ | |
1773 | TRUE, /* inherit handles */ | |
1774 | flags, /* start flags */ | |
1750a5ef | 1775 | winenv, |
24e60978 SC |
1776 | NULL, /* current directory */ |
1777 | &si, | |
1778 | &pi); | |
2becadee CF |
1779 | if (tty >= 0) |
1780 | { | |
1781 | close (tty); | |
1782 | dup2 (ostdin, 0); | |
1783 | dup2 (ostdout, 1); | |
1784 | dup2 (ostderr, 2); | |
1785 | close (ostdin); | |
1786 | close (ostdout); | |
1787 | close (ostderr); | |
1788 | } | |
1789 | ||
24e60978 | 1790 | if (!ret) |
8a3fe4f8 AC |
1791 | error (_("Error creating process %s, (error %d)."), |
1792 | exec_file, (unsigned) GetLastError ()); | |
24e60978 | 1793 | |
700b351b CF |
1794 | CloseHandle (pi.hThread); |
1795 | CloseHandle (pi.hProcess); | |
dfe7f3ac CF |
1796 | |
1797 | if (useshell && shell[0] != '\0') | |
1798 | saw_create = -1; | |
1799 | else | |
1800 | saw_create = 0; | |
1801 | ||
3ee6f623 | 1802 | do_initial_win32_stuff (pi.dwProcessId); |
d3a09475 | 1803 | |
3ee6f623 | 1804 | /* win32_continue (DBG_CONTINUE, -1); */ |
1e37c281 | 1805 | proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0); |
24e60978 SC |
1806 | } |
1807 | ||
1808 | static void | |
3ee6f623 | 1809 | win32_mourn_inferior (void) |
24e60978 | 1810 | { |
3ee6f623 | 1811 | (void) win32_continue (DBG_CONTINUE, -1); |
fa4ba8da | 1812 | i386_cleanup_dregs(); |
3ee6f623 | 1813 | unpush_target (&win32_ops); |
24e60978 SC |
1814 | generic_mourn_inferior (); |
1815 | } | |
1816 | ||
24e60978 SC |
1817 | /* Send a SIGINT to the process group. This acts just like the user typed a |
1818 | ^C on the controlling terminal. */ | |
1819 | ||
b607efe7 | 1820 | static void |
3ee6f623 | 1821 | win32_stop (void) |
24e60978 | 1822 | { |
1ef980b9 | 1823 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 1824 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 1825 | registers_changed (); /* refresh register state */ |
24e60978 SC |
1826 | } |
1827 | ||
3ee6f623 CF |
1828 | static int |
1829 | win32_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, | |
0a65a603 AC |
1830 | int write, struct mem_attrib *mem, |
1831 | struct target_ops *target) | |
24e60978 | 1832 | { |
6f17862b | 1833 | DWORD done = 0; |
24e60978 SC |
1834 | if (write) |
1835 | { | |
29fe111d CF |
1836 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
1837 | len, (DWORD) memaddr)); | |
6f17862b CF |
1838 | if (!WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our, |
1839 | len, &done)) | |
1840 | done = 0; | |
3cee93ac | 1841 | FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len); |
24e60978 SC |
1842 | } |
1843 | else | |
1844 | { | |
29fe111d CF |
1845 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
1846 | len, (DWORD) memaddr)); | |
6f17862b CF |
1847 | if (!ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, |
1848 | len, &done)) | |
1849 | done = 0; | |
24e60978 SC |
1850 | } |
1851 | return done; | |
1852 | } | |
1853 | ||
3ee6f623 CF |
1854 | static void |
1855 | win32_kill_inferior (void) | |
24e60978 | 1856 | { |
3cee93ac CF |
1857 | CHECK (TerminateProcess (current_process_handle, 0)); |
1858 | ||
b5edcb45 ILT |
1859 | for (;;) |
1860 | { | |
3ee6f623 | 1861 | if (!win32_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 1862 | break; |
3cee93ac | 1863 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 1864 | break; |
3cee93ac | 1865 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
1866 | break; |
1867 | } | |
1868 | ||
3cee93ac CF |
1869 | CHECK (CloseHandle (current_process_handle)); |
1870 | ||
1871 | /* this may fail in an attached process so don't check. */ | |
3ade5333 CF |
1872 | if (current_thread && current_thread->h) |
1873 | (void) CloseHandle (current_thread->h); | |
3ee6f623 | 1874 | target_mourn_inferior (); /* or just win32_mourn_inferior? */ |
24e60978 SC |
1875 | } |
1876 | ||
3ee6f623 CF |
1877 | static void |
1878 | win32_resume (ptid_t ptid, int step, enum target_signal sig) | |
24e60978 | 1879 | { |
3cee93ac | 1880 | thread_info *th; |
7393af7c PM |
1881 | DWORD continue_status = DBG_CONTINUE; |
1882 | ||
39f77062 | 1883 | int pid = PIDGET (ptid); |
8a892701 | 1884 | |
7393af7c PM |
1885 | if (sig != TARGET_SIGNAL_0) |
1886 | { | |
1887 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1888 | { | |
1889 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1890 | } | |
1891 | else if (sig == last_sig) | |
1892 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1893 | else | |
1894 | #if 0 | |
1895 | /* This code does not seem to work, because | |
1896 | the kernel does probably not consider changes in the ExceptionRecord | |
dfe7f3ac | 1897 | structure when passing the exception to the inferior. |
7393af7c PM |
1898 | Note that this seems possible in the exception handler itself. */ |
1899 | { | |
1900 | int i; | |
1901 | for (i = 0; xlate[i].them != -1; i++) | |
1902 | if (xlate[i].us == sig) | |
1903 | { | |
1904 | current_event.u.Exception.ExceptionRecord.ExceptionCode = | |
1905 | xlate[i].them; | |
1906 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1907 | break; | |
1908 | } | |
1909 | if (continue_status == DBG_CONTINUE) | |
1910 | { | |
1911 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1912 | } | |
1913 | } | |
1914 | #endif | |
dfe7f3ac | 1915 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", |
7393af7c PM |
1916 | last_sig)); |
1917 | } | |
1918 | ||
1919 | last_sig = TARGET_SIGNAL_0; | |
24e60978 | 1920 | |
3ee6f623 | 1921 | DEBUG_EXEC (("gdb: win32_resume (pid=%d, step=%d, sig=%d);\n", |
3cee93ac CF |
1922 | pid, step, sig)); |
1923 | ||
1924 | /* Get context for currently selected thread */ | |
1925 | th = thread_rec (current_event.dwThreadId, FALSE); | |
450005e7 | 1926 | if (th) |
24e60978 | 1927 | { |
450005e7 CF |
1928 | if (step) |
1929 | { | |
1930 | /* Single step by setting t bit */ | |
3ee6f623 | 1931 | win32_fetch_inferior_registers (PS_REGNUM); |
450005e7 CF |
1932 | th->context.EFlags |= FLAG_TRACE_BIT; |
1933 | } | |
24e60978 | 1934 | |
450005e7 CF |
1935 | if (th->context.ContextFlags) |
1936 | { | |
caad7706 CF |
1937 | if (debug_registers_changed) |
1938 | { | |
1939 | th->context.Dr0 = dr[0]; | |
1940 | th->context.Dr1 = dr[1]; | |
1941 | th->context.Dr2 = dr[2]; | |
1942 | th->context.Dr3 = dr[3]; | |
1943 | /* th->context.Dr6 = dr[6]; | |
1944 | FIXME: should we set dr6 also ?? */ | |
1945 | th->context.Dr7 = dr[7]; | |
1946 | } | |
450005e7 CF |
1947 | CHECK (SetThreadContext (th->h, &th->context)); |
1948 | th->context.ContextFlags = 0; | |
1949 | } | |
24e60978 SC |
1950 | } |
1951 | ||
3cee93ac CF |
1952 | /* Allow continuing with the same signal that interrupted us. |
1953 | Otherwise complain. */ | |
24e60978 | 1954 | |
3ee6f623 | 1955 | win32_continue (continue_status, pid); |
24e60978 SC |
1956 | } |
1957 | ||
1958 | static void | |
3ee6f623 | 1959 | win32_prepare_to_store (void) |
24e60978 SC |
1960 | { |
1961 | /* Do nothing, since we can store individual regs */ | |
1962 | } | |
1963 | ||
1964 | static int | |
3ee6f623 | 1965 | win32_can_run (void) |
24e60978 SC |
1966 | { |
1967 | return 1; | |
1968 | } | |
1969 | ||
1970 | static void | |
3ee6f623 | 1971 | win32_close (int x) |
24e60978 | 1972 | { |
3ee6f623 | 1973 | DEBUG_EVENTS (("gdb: win32_close, inferior_ptid=%d\n", |
3bccec63 | 1974 | PIDGET (inferior_ptid))); |
24e60978 | 1975 | } |
1ef980b9 | 1976 | |
3ee6f623 CF |
1977 | /* Convert pid to printable format. */ |
1978 | static char * | |
1979 | cygwin_pid_to_str (ptid_t ptid) | |
24e60978 | 1980 | { |
3ee6f623 CF |
1981 | static char buf[80]; |
1982 | int pid = PIDGET (ptid); | |
1983 | ||
1984 | if ((DWORD) pid == current_event.dwProcessId) | |
1985 | sprintf (buf, "process %d", pid); | |
1986 | else | |
1987 | sprintf (buf, "thread %ld.0x%x", current_event.dwProcessId, pid); | |
1988 | return buf; | |
1989 | } | |
1990 | ||
1991 | static void | |
1992 | init_win32_ops (void) | |
1993 | { | |
1994 | win32_ops.to_shortname = "child"; | |
1995 | win32_ops.to_longname = "Win32 child process"; | |
1996 | win32_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
1997 | win32_ops.to_open = win32_open; | |
1998 | win32_ops.to_close = win32_close; | |
1999 | win32_ops.to_attach = win32_attach; | |
2000 | win32_ops.to_detach = win32_detach; | |
2001 | win32_ops.to_resume = win32_resume; | |
2002 | win32_ops.to_wait = win32_wait; | |
2003 | win32_ops.to_fetch_registers = win32_fetch_inferior_registers; | |
2004 | win32_ops.to_store_registers = win32_store_inferior_registers; | |
2005 | win32_ops.to_prepare_to_store = win32_prepare_to_store; | |
2006 | win32_ops.deprecated_xfer_memory = win32_xfer_memory; | |
2007 | win32_ops.to_files_info = win32_files_info; | |
2008 | win32_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2009 | win32_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2010 | win32_ops.to_terminal_init = terminal_init_inferior; | |
2011 | win32_ops.to_terminal_inferior = terminal_inferior; | |
2012 | win32_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2013 | win32_ops.to_terminal_ours = terminal_ours; | |
2014 | win32_ops.to_terminal_save_ours = terminal_save_ours; | |
2015 | win32_ops.to_terminal_info = child_terminal_info; | |
2016 | win32_ops.to_kill = win32_kill_inferior; | |
2017 | win32_ops.to_create_inferior = win32_create_inferior; | |
2018 | win32_ops.to_mourn_inferior = win32_mourn_inferior; | |
2019 | win32_ops.to_can_run = win32_can_run; | |
2020 | win32_ops.to_thread_alive = win32_win32_thread_alive; | |
2021 | win32_ops.to_pid_to_str = cygwin_pid_to_str; | |
2022 | win32_ops.to_stop = win32_stop; | |
2023 | win32_ops.to_stratum = process_stratum; | |
2024 | win32_ops.to_has_all_memory = 1; | |
2025 | win32_ops.to_has_memory = 1; | |
2026 | win32_ops.to_has_stack = 1; | |
2027 | win32_ops.to_has_registers = 1; | |
2028 | win32_ops.to_has_execution = 1; | |
2029 | win32_ops.to_magic = OPS_MAGIC; | |
2030 | win32_ops.to_pid_to_exec_file = win32_pid_to_exec_file; | |
2031 | ||
2032 | win32_so_ops.relocate_section_addresses = win32_relocate_section_addresses; | |
2033 | win32_so_ops.free_so = win32_free_so; | |
2034 | win32_so_ops.clear_solib = win32_clear_solib; | |
2035 | win32_so_ops.solib_create_inferior_hook = NULL; | |
2036 | win32_so_ops.special_symbol_handling = NULL; | |
2037 | win32_so_ops.current_sos = win32_current_sos; | |
2038 | win32_so_ops.open_symbol_file_object = NULL; | |
2039 | win32_so_ops.in_dynsym_resolve_code = NULL; | |
2040 | ||
2041 | /* FIXME: Don't do this here. *_gdbarch_init() should set so_ops. */ | |
2042 | current_target_so_ops = &win32_so_ops; | |
c719b714 | 2043 | } |
24e60978 SC |
2044 | |
2045 | void | |
a6b6b089 | 2046 | _initialize_win32_nat (void) |
24e60978 | 2047 | { |
fa58ee11 EZ |
2048 | struct cmd_list_element *c; |
2049 | ||
3ee6f623 | 2050 | init_win32_ops (); |
1ef980b9 | 2051 | |
fa58ee11 | 2052 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2053 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2054 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2055 | |
2056 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2057 | ||
5bf193a2 AC |
2058 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2059 | Set use of shell to start subprocess."), _("\ | |
2060 | Show use of shell to start subprocess."), NULL, | |
2061 | NULL, | |
2062 | NULL, /* FIXME: i18n: */ | |
2063 | &setlist, &showlist); | |
2064 | ||
2065 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ | |
2066 | Set creation of new console when creating child process."), _("\ | |
2067 | Show creation of new console when creating child process."), NULL, | |
2068 | NULL, | |
2069 | NULL, /* FIXME: i18n: */ | |
2070 | &setlist, &showlist); | |
2071 | ||
2072 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2073 | Set creation of new group when creating child process."), _("\ | |
2074 | Show creation of new group when creating child process."), NULL, | |
2075 | NULL, | |
2076 | NULL, /* FIXME: i18n: */ | |
2077 | &setlist, &showlist); | |
2078 | ||
2079 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2080 | Set whether to display execution in child process."), _("\ | |
2081 | Show whether to display execution in child process."), NULL, | |
2082 | NULL, | |
2083 | NULL, /* FIXME: i18n: */ | |
2084 | &setlist, &showlist); | |
2085 | ||
2086 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2087 | Set whether to display kernel events in child process."), _("\ | |
2088 | Show whether to display kernel events in child process."), NULL, | |
2089 | NULL, | |
2090 | NULL, /* FIXME: i18n: */ | |
2091 | &setlist, &showlist); | |
2092 | ||
2093 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2094 | Set whether to display memory accesses in child process."), _("\ | |
2095 | Show whether to display memory accesses in child process."), NULL, | |
2096 | NULL, | |
2097 | NULL, /* FIXME: i18n: */ | |
2098 | &setlist, &showlist); | |
2099 | ||
2100 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2101 | &debug_exceptions, _("\ | |
2102 | Set whether to display kernel exceptions in child process."), _("\ | |
2103 | Show whether to display kernel exceptions in child process."), NULL, | |
2104 | NULL, | |
2105 | NULL, /* FIXME: i18n: */ | |
2106 | &setlist, &showlist); | |
1ef980b9 | 2107 | |
1bedd215 | 2108 | add_info ("dll", info_dll_command, _("Status of loaded DLLs.")); |
450005e7 CF |
2109 | add_info_alias ("sharedlibrary", "dll", 1); |
2110 | ||
c1748f97 | 2111 | add_prefix_cmd ("w32", class_info, info_w32_command, |
1bedd215 | 2112 | _("Print information specific to Win32 debugging."), |
baa93fa6 | 2113 | &info_w32_cmdlist, "info w32 ", 0, &infolist); |
c1748f97 PM |
2114 | |
2115 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2116 | _("Display selectors infos."), |
c1748f97 | 2117 | &info_w32_cmdlist); |
3ee6f623 | 2118 | add_target (&win32_ops); |
24e60978 | 2119 | } |
3cee93ac | 2120 | |
fa4ba8da PM |
2121 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2122 | ||
2123 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2124 | Here we just store the address in dr array, the registers will be | |
3ee6f623 | 2125 | actually set up when win32_continue is called. */ |
fa4ba8da PM |
2126 | void |
2127 | cygwin_set_dr (int i, CORE_ADDR addr) | |
2128 | { | |
2129 | if (i < 0 || i > 3) | |
2130 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2131 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
fa4ba8da PM |
2132 | dr[i] = (unsigned) addr; |
2133 | debug_registers_changed = 1; | |
2134 | debug_registers_used = 1; | |
2135 | } | |
2136 | ||
2137 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2138 | register. Here we just store the address in D_REGS, the watchpoint | |
3ee6f623 | 2139 | will be actually set up in win32_wait. */ |
fa4ba8da PM |
2140 | void |
2141 | cygwin_set_dr7 (unsigned val) | |
2142 | { | |
2143 | dr[7] = val; | |
2144 | debug_registers_changed = 1; | |
2145 | debug_registers_used = 1; | |
2146 | } | |
2147 | ||
2148 | /* Get the value of the DR6 debug status register from the inferior. | |
2149 | Here we just return the value stored in dr[6] | |
2150 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
2151 | unsigned | |
2152 | cygwin_get_dr6 (void) | |
2153 | { | |
2154 | return dr[6]; | |
2155 | } | |
2156 | ||
3cee93ac CF |
2157 | /* Determine if the thread referenced by "pid" is alive |
2158 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 | |
2159 | it means that the pid has died. Otherwise it is assumed to be alive. */ | |
2160 | static int | |
3ee6f623 | 2161 | win32_win32_thread_alive (ptid_t ptid) |
3cee93ac | 2162 | { |
39f77062 KB |
2163 | int pid = PIDGET (ptid); |
2164 | ||
3a4b77d8 JM |
2165 | return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
2166 | FALSE : TRUE; | |
3cee93ac CF |
2167 | } |
2168 | ||
8e860359 CF |
2169 | static void |
2170 | fetch_elf_core_registers (char *core_reg_sect, | |
2171 | unsigned core_reg_size, | |
2172 | int which, | |
2173 | CORE_ADDR reg_addr) | |
2174 | { | |
2175 | int r; | |
2176 | if (core_reg_size < sizeof (CONTEXT)) | |
2177 | { | |
8a3fe4f8 | 2178 | error (_("Core file register section too small (%u bytes)."), core_reg_size); |
8e860359 CF |
2179 | return; |
2180 | } | |
2181 | for (r = 0; r < NUM_REGS; r++) | |
23a6d369 | 2182 | regcache_raw_supply (current_regcache, r, core_reg_sect + mappings[r]); |
8e860359 CF |
2183 | } |
2184 | ||
2185 | static struct core_fns win32_elf_core_fns = | |
2186 | { | |
2187 | bfd_target_elf_flavour, | |
2188 | default_check_format, | |
2189 | default_core_sniffer, | |
2190 | fetch_elf_core_registers, | |
2191 | NULL | |
2192 | }; | |
2193 | ||
2194 | void | |
0613c401 | 2195 | _initialize_core_win32 (void) |
8e860359 | 2196 | { |
00e32a35 | 2197 | deprecated_add_core_fns (&win32_elf_core_fns); |
8e860359 | 2198 | } |
2a3d5645 CF |
2199 | |
2200 | void | |
2201 | _initialize_check_for_gdb_ini (void) | |
2202 | { | |
2203 | char *homedir; | |
2204 | if (inhibit_gdbinit) | |
2205 | return; | |
2206 | ||
2207 | homedir = getenv ("HOME"); | |
2208 | if (homedir) | |
2209 | { | |
2210 | char *p; | |
2211 | char *oldini = (char *) alloca (strlen (homedir) + | |
2212 | sizeof ("/gdb.ini")); | |
2213 | strcpy (oldini, homedir); | |
2214 | p = strchr (oldini, '\0'); | |
2215 | if (p > oldini && p[-1] != '/') | |
2216 | *p++ = '/'; | |
2217 | strcpy (p, "gdb.ini"); | |
2218 | if (access (oldini, 0) == 0) | |
2219 | { | |
2220 | int len = strlen (oldini); | |
2221 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2222 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2223 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2224 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2225 | } |
2226 | } | |
2227 | } |