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" |
3cb8e7f6 | 57 | #include "solib.h" |
24e60978 | 58 | |
6c7de422 MK |
59 | #include "i386-tdep.h" |
60 | #include "i387-tdep.h" | |
61 | ||
3ee6f623 CF |
62 | static struct target_ops win32_ops; |
63 | static struct target_so_ops win32_so_ops; | |
64 | ||
0714f9bf SS |
65 | /* If we're not using the old Cygwin header file set, define the |
66 | following which never should have been in the generic Win32 API | |
67 | headers in the first place since they were our own invention... */ | |
68 | #ifndef _GNU_H_WINDOWS_H | |
9d3789f7 | 69 | enum |
8e860359 CF |
70 | { |
71 | FLAG_TRACE_BIT = 0x100, | |
72 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
73 | }; | |
0714f9bf | 74 | #endif |
8e860359 CF |
75 | #include <sys/procfs.h> |
76 | #include <psapi.h> | |
0714f9bf | 77 | |
fa4ba8da PM |
78 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
79 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 80 | |
fa4ba8da | 81 | static unsigned dr[8]; |
87a45c96 CF |
82 | static int debug_registers_changed; |
83 | static int debug_registers_used; | |
97da3b20 | 84 | |
3cee93ac CF |
85 | /* The string sent by cygwin when it processes a signal. |
86 | FIXME: This should be in a cygwin include file. */ | |
87 | #define CYGWIN_SIGNAL_STRING "cygwin: signal" | |
88 | ||
29fe111d | 89 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 90 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
91 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
92 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
93 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 94 | |
3ee6f623 CF |
95 | static void win32_stop (void); |
96 | static int win32_win32_thread_alive (ptid_t); | |
97 | static void win32_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 * | |
3ee6f623 | 259 | win32_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 |
3ee6f623 | 295 | win32_init_thread_list (void) |
24e60978 | 296 | { |
3cee93ac CF |
297 | thread_info *th = &thread_head; |
298 | ||
3ee6f623 | 299 | DEBUG_EVENTS (("gdb: win32_init_thread_list\n")); |
3cee93ac CF |
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 | } |
059198c1 | 308 | thread_head.next = NULL; |
3cee93ac CF |
309 | } |
310 | ||
311 | /* Delete a thread from the list of threads */ | |
312 | static void | |
3ee6f623 | 313 | win32_delete_thread (DWORD id) |
3cee93ac CF |
314 | { |
315 | thread_info *th; | |
316 | ||
317 | if (info_verbose) | |
39f77062 KB |
318 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id))); |
319 | delete_thread (pid_to_ptid (id)); | |
3cee93ac CF |
320 | |
321 | for (th = &thread_head; | |
322 | th->next != NULL && th->next->id != id; | |
323 | th = th->next) | |
324 | continue; | |
325 | ||
326 | if (th->next != NULL) | |
24e60978 | 327 | { |
3cee93ac CF |
328 | thread_info *here = th->next; |
329 | th->next = here->next; | |
330 | CloseHandle (here->h); | |
b8c9b27d | 331 | xfree (here); |
24e60978 SC |
332 | } |
333 | } | |
334 | ||
3cee93ac | 335 | static void |
3ee6f623 | 336 | do_win32_fetch_inferior_registers (int r) |
24e60978 | 337 | { |
1e37c281 JM |
338 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
339 | long l; | |
6c7de422 | 340 | |
3ade5333 | 341 | if (!current_thread) |
d6dc8049 CF |
342 | return; /* Windows sometimes uses a non-existent thread id in its |
343 | events */ | |
3ade5333 CF |
344 | |
345 | if (current_thread->reload_context) | |
346 | { | |
347 | thread_info *th = current_thread; | |
348 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
349 | GetThreadContext (th->h, &th->context); | |
350 | /* Copy dr values from that thread. */ | |
351 | dr[0] = th->context.Dr0; | |
352 | dr[1] = th->context.Dr1; | |
353 | dr[2] = th->context.Dr2; | |
354 | dr[3] = th->context.Dr3; | |
355 | dr[6] = th->context.Dr6; | |
356 | dr[7] = th->context.Dr7; | |
357 | current_thread->reload_context = 0; | |
358 | } | |
359 | ||
6c7de422 MK |
360 | #define I387_ST0_REGNUM I386_ST0_REGNUM |
361 | ||
362 | if (r == I387_FISEG_REGNUM) | |
1e37c281 | 363 | { |
8e860359 | 364 | l = *((long *) context_offset) & 0xffff; |
23a6d369 | 365 | regcache_raw_supply (current_regcache, r, (char *) &l); |
1e37c281 | 366 | } |
6c7de422 | 367 | else if (r == I387_FOP_REGNUM) |
1e37c281 | 368 | { |
8e860359 | 369 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
23a6d369 | 370 | regcache_raw_supply (current_regcache, r, (char *) &l); |
1e37c281 JM |
371 | } |
372 | else if (r >= 0) | |
23a6d369 | 373 | regcache_raw_supply (current_regcache, r, context_offset); |
3cee93ac | 374 | else |
24e60978 SC |
375 | { |
376 | for (r = 0; r < NUM_REGS; r++) | |
3ee6f623 | 377 | do_win32_fetch_inferior_registers (r); |
24e60978 | 378 | } |
6c7de422 MK |
379 | |
380 | #undef I387_ST0_REGNUM | |
3cee93ac CF |
381 | } |
382 | ||
383 | static void | |
3ee6f623 | 384 | win32_fetch_inferior_registers (int r) |
3cee93ac | 385 | { |
39f77062 | 386 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
d6dc8049 CF |
387 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
388 | thread id in its events */ | |
3ade5333 | 389 | if (current_thread) |
3ee6f623 | 390 | do_win32_fetch_inferior_registers (r); |
3cee93ac CF |
391 | } |
392 | ||
393 | static void | |
3ee6f623 | 394 | do_win32_store_inferior_registers (int r) |
3cee93ac | 395 | { |
3ade5333 | 396 | if (!current_thread) |
d6dc8049 | 397 | /* Windows sometimes uses a non-existent thread id in its events */; |
3ade5333 | 398 | else if (r >= 0) |
822c9732 AC |
399 | regcache_raw_collect (current_regcache, r, |
400 | ((char *) ¤t_thread->context) + mappings[r]); | |
24e60978 SC |
401 | else |
402 | { | |
3cee93ac | 403 | for (r = 0; r < NUM_REGS; r++) |
3ee6f623 | 404 | do_win32_store_inferior_registers (r); |
24e60978 SC |
405 | } |
406 | } | |
407 | ||
3cee93ac CF |
408 | /* Store a new register value into the current thread context */ |
409 | static void | |
3ee6f623 | 410 | win32_store_inferior_registers (int r) |
3cee93ac | 411 | { |
39f77062 | 412 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
d6dc8049 CF |
413 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
414 | thread id in its events */ | |
3ade5333 | 415 | if (current_thread) |
3ee6f623 | 416 | do_win32_store_inferior_registers (r); |
3cee93ac | 417 | } |
24e60978 | 418 | |
1e37c281 JM |
419 | static int psapi_loaded = 0; |
420 | static HMODULE psapi_module_handle = NULL; | |
8e860359 CF |
421 | static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, LPDWORD) = NULL; |
422 | static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD) = NULL; | |
423 | static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD) = NULL; | |
1e37c281 | 424 | |
3ee6f623 | 425 | static int |
8e860359 | 426 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) |
1e37c281 JM |
427 | { |
428 | DWORD len; | |
429 | MODULEINFO mi; | |
430 | int i; | |
8e860359 CF |
431 | HMODULE dh_buf[1]; |
432 | HMODULE *DllHandle = dh_buf; | |
1e37c281 JM |
433 | DWORD cbNeeded; |
434 | BOOL ok; | |
435 | ||
436 | if (!psapi_loaded || | |
8e860359 CF |
437 | psapi_EnumProcessModules == NULL || |
438 | psapi_GetModuleInformation == NULL || | |
439 | psapi_GetModuleFileNameExA == NULL) | |
1e37c281 | 440 | { |
8e860359 CF |
441 | if (psapi_loaded) |
442 | goto failed; | |
1e37c281 JM |
443 | psapi_loaded = 1; |
444 | psapi_module_handle = LoadLibrary ("psapi.dll"); | |
445 | if (!psapi_module_handle) | |
8e860359 CF |
446 | { |
447 | /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */ | |
448 | goto failed; | |
449 | } | |
450 | psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules"); | |
1e37c281 JM |
451 | psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation"); |
452 | psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, | |
8e860359 CF |
453 | "GetModuleFileNameExA"); |
454 | if (psapi_EnumProcessModules == NULL || | |
455 | psapi_GetModuleInformation == NULL || | |
456 | psapi_GetModuleFileNameExA == NULL) | |
1e37c281 JM |
457 | goto failed; |
458 | } | |
459 | ||
460 | cbNeeded = 0; | |
461 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
462 | DllHandle, |
463 | sizeof (HMODULE), | |
464 | &cbNeeded); | |
1e37c281 JM |
465 | |
466 | if (!ok || !cbNeeded) | |
467 | goto failed; | |
468 | ||
8e860359 | 469 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
470 | if (!DllHandle) |
471 | goto failed; | |
472 | ||
473 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
474 | DllHandle, |
475 | cbNeeded, | |
476 | &cbNeeded); | |
1e37c281 JM |
477 | if (!ok) |
478 | goto failed; | |
479 | ||
29fe111d | 480 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 JM |
481 | { |
482 | if (!(*psapi_GetModuleInformation) (current_process_handle, | |
8e860359 CF |
483 | DllHandle[i], |
484 | &mi, | |
485 | sizeof (mi))) | |
8a3fe4f8 | 486 | error (_("Can't get module info")); |
1e37c281 JM |
487 | |
488 | len = (*psapi_GetModuleFileNameExA) (current_process_handle, | |
8e860359 CF |
489 | DllHandle[i], |
490 | dll_name_ret, | |
491 | MAX_PATH); | |
1e37c281 | 492 | if (len == 0) |
8a3fe4f8 | 493 | error (_("Error getting dll name: %u."), (unsigned) GetLastError ()); |
1e37c281 JM |
494 | |
495 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
496 | return 1; | |
497 | } | |
498 | ||
499 | failed: | |
500 | dll_name_ret[0] = '\0'; | |
501 | return 0; | |
502 | } | |
503 | ||
450005e7 CF |
504 | /* Encapsulate the information required in a call to |
505 | symbol_file_add_args */ | |
8a892701 CF |
506 | struct safe_symbol_file_add_args |
507 | { | |
508 | char *name; | |
509 | int from_tty; | |
510 | struct section_addr_info *addrs; | |
511 | int mainline; | |
512 | int flags; | |
7c5c87c0 | 513 | struct ui_file *err, *out; |
8a892701 CF |
514 | struct objfile *ret; |
515 | }; | |
516 | ||
02e423b9 | 517 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 518 | struct lm_info |
02e423b9 | 519 | { |
02e423b9 | 520 | DWORD load_addr; |
3ee6f623 CF |
521 | }; |
522 | ||
523 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 524 | |
450005e7 CF |
525 | /* Call symbol_file_add with stderr redirected. We don't care if there |
526 | are errors. */ | |
8a892701 CF |
527 | static int |
528 | safe_symbol_file_add_stub (void *argv) | |
529 | { | |
3ee6f623 CF |
530 | #define p ((struct safe_symbol_file_add_args *) argv) |
531 | struct so_list *so = &solib_start; | |
02e423b9 | 532 | |
8a892701 CF |
533 | p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags); |
534 | return !!p->ret; | |
535 | #undef p | |
536 | } | |
537 | ||
450005e7 | 538 | /* Restore gdb's stderr after calling symbol_file_add */ |
8a892701 | 539 | static void |
7c5c87c0 | 540 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 541 | { |
8e860359 | 542 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 543 | gdb_flush (gdb_stderr); |
7c5c87c0 | 544 | gdb_flush (gdb_stdout); |
d3ff4a77 | 545 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 546 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 547 | gdb_stderr = sp->err; |
9d3789f7 | 548 | gdb_stdout = sp->out; |
8e860359 | 549 | #undef sp |
8a892701 CF |
550 | } |
551 | ||
450005e7 | 552 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
553 | static struct objfile * |
554 | safe_symbol_file_add (char *name, int from_tty, | |
555 | struct section_addr_info *addrs, | |
556 | int mainline, int flags) | |
8a892701 CF |
557 | { |
558 | struct safe_symbol_file_add_args p; | |
559 | struct cleanup *cleanup; | |
560 | ||
7c5c87c0 | 561 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 562 | |
7c5c87c0 CF |
563 | p.err = gdb_stderr; |
564 | p.out = gdb_stdout; | |
450005e7 | 565 | gdb_flush (gdb_stderr); |
7c5c87c0 | 566 | gdb_flush (gdb_stdout); |
d3ff4a77 | 567 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 568 | gdb_stdout = ui_file_new (); |
8a892701 CF |
569 | p.name = name; |
570 | p.from_tty = from_tty; | |
571 | p.addrs = addrs; | |
572 | p.mainline = mainline; | |
573 | p.flags = flags; | |
574 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
575 | ||
576 | do_cleanups (cleanup); | |
577 | return p.ret; | |
578 | } | |
579 | ||
3cb8e7f6 CF |
580 | /* Get the loaded address of all sections, given that .text was loaded |
581 | at text_load. Assumes that all sections are subject to the same | |
582 | relocation offset. Returns NULL if problems occur or if the | |
583 | sections were not relocated. */ | |
584 | ||
585 | static struct section_addr_info * | |
586 | get_relocated_section_addrs (bfd *abfd, CORE_ADDR text_load) | |
587 | { | |
588 | struct section_addr_info *result = NULL; | |
589 | int section_count = bfd_count_sections (abfd); | |
590 | asection *text_section = bfd_get_section_by_name (abfd, ".text"); | |
591 | CORE_ADDR text_vma; | |
592 | ||
593 | if (!text_section) | |
594 | { | |
595 | /* Couldn't get the .text section. Weird. */ | |
596 | } | |
597 | ||
598 | else if (text_load == (text_vma = bfd_get_section_vma (abfd, text_section))) | |
599 | { | |
600 | /* DLL wasn't relocated. */ | |
601 | } | |
602 | ||
603 | else | |
604 | { | |
605 | /* Figure out all sections' loaded addresses. The offset here is | |
606 | such that taking a bfd_get_section_vma() result and adding | |
607 | offset will give the real load address of the section. */ | |
608 | ||
609 | CORE_ADDR offset = text_load - text_vma; | |
610 | ||
611 | struct section_table *table_start = NULL; | |
612 | struct section_table *table_end = NULL; | |
613 | struct section_table *iter = NULL; | |
614 | ||
615 | build_section_table (abfd, &table_start, &table_end); | |
616 | ||
617 | for (iter = table_start; iter < table_end; ++iter) | |
618 | { | |
619 | /* Relocated addresses. */ | |
620 | iter->addr += offset; | |
621 | iter->endaddr += offset; | |
622 | } | |
623 | ||
624 | result = build_section_addr_info_from_section_table (table_start, | |
625 | table_end); | |
626 | ||
627 | xfree (table_start); | |
628 | } | |
629 | ||
630 | return result; | |
631 | } | |
632 | ||
633 | /* Add DLL symbol information. */ | |
634 | static void | |
635 | solib_symbols_add (struct so_list *so, CORE_ADDR load_addr) | |
636 | { | |
637 | struct section_addr_info *addrs = NULL; | |
638 | static struct objfile *result = NULL; | |
639 | char *name = so->so_name; | |
640 | bfd *abfd = NULL; | |
641 | ||
642 | /* The symbols in a dll are offset by 0x1000, which is the | |
643 | the offset from 0 of the first byte in an image - because | |
644 | of the file header and the section alignment. */ | |
645 | ||
646 | if (!name || !name[0]) | |
647 | return; | |
648 | ||
649 | abfd = bfd_openr (name, "pei-i386"); | |
650 | ||
651 | if (!abfd) | |
652 | { | |
653 | /* pei failed - try pe */ | |
654 | abfd = bfd_openr (name, "pe-i386"); | |
655 | } | |
656 | ||
657 | if (abfd) | |
658 | { | |
659 | if (bfd_check_format (abfd, bfd_object)) | |
660 | addrs = get_relocated_section_addrs (abfd, load_addr); | |
661 | ||
662 | bfd_close (abfd); | |
663 | } | |
664 | ||
665 | if (addrs) | |
666 | { | |
667 | result = safe_symbol_file_add (name, 0, addrs, 0, OBJF_SHARED); | |
668 | free_section_addr_info (addrs); | |
669 | } | |
670 | else | |
671 | { | |
672 | /* Fallback on handling just the .text section. */ | |
673 | struct cleanup *my_cleanups; | |
674 | ||
675 | addrs = alloc_section_addr_info (1); | |
676 | my_cleanups = make_cleanup (xfree, addrs); | |
677 | addrs->other[0].name = ".text"; | |
678 | addrs->other[0].addr = load_addr; | |
679 | ||
680 | result = safe_symbol_file_add (name, 0, addrs, 0, OBJF_SHARED); | |
681 | do_cleanups (my_cleanups); | |
682 | } | |
683 | ||
684 | so->symbols_loaded = !!result; | |
685 | return; | |
686 | } | |
687 | ||
450005e7 | 688 | /* Remember the maximum DLL length for printing in info dll command. */ |
3ee6f623 | 689 | static int max_dll_name_len; |
450005e7 | 690 | |
3cb8e7f6 CF |
691 | static char * |
692 | register_loaded_dll (const char *name, DWORD load_addr, int readsyms) | |
8e860359 | 693 | { |
3ee6f623 | 694 | struct so_list *so; |
3f8ad85b CF |
695 | char buf[MAX_PATH + 1]; |
696 | char cwd[MAX_PATH + 1]; | |
697 | char *p; | |
698 | WIN32_FIND_DATA w32_fd; | |
699 | HANDLE h = FindFirstFile(name, &w32_fd); | |
5633f842 | 700 | MEMORY_BASIC_INFORMATION m; |
3f8ad85b CF |
701 | size_t len; |
702 | ||
6badb179 CF |
703 | if (h == INVALID_HANDLE_VALUE) |
704 | strcpy (buf, name); | |
705 | else | |
3f8ad85b | 706 | { |
c914e0cc CF |
707 | FindClose (h); |
708 | strcpy (buf, name); | |
709 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
710 | { | |
711 | p = strrchr (buf, '\\'); | |
712 | if (p) | |
713 | p[1] = '\0'; | |
714 | SetCurrentDirectory (buf); | |
715 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
716 | SetCurrentDirectory (cwd); | |
717 | } | |
3f8ad85b CF |
718 | } |
719 | ||
3ee6f623 CF |
720 | if (strcasecmp (buf, "ntdll.dll") == 0) |
721 | { | |
722 | GetSystemDirectory (buf, sizeof (buf)); | |
723 | strcat (buf, "\\ntdll.dll"); | |
724 | } | |
3cb8e7f6 | 725 | so = (struct so_list *) xmalloc (sizeof (struct so_list)); |
3ee6f623 CF |
726 | memset (so, 0, sizeof (*so)); |
727 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); | |
728 | so->lm_info->load_addr = load_addr; | |
3cb8e7f6 CF |
729 | cygwin_conv_to_posix_path (buf, so->so_name); |
730 | strcpy (so->so_original_name, so->so_name); | |
8e860359 CF |
731 | |
732 | solib_end->next = so; | |
733 | solib_end = so; | |
3cb8e7f6 | 734 | len = strlen (so->so_name); |
3f8ad85b CF |
735 | if (len > max_dll_name_len) |
736 | max_dll_name_len = len; | |
3cb8e7f6 CF |
737 | if (readsyms) |
738 | solib_symbols_add (so, (CORE_ADDR) load_addr); | |
739 | return so->so_name; | |
8e860359 CF |
740 | } |
741 | ||
3ee6f623 | 742 | static char * |
dfe7f3ac CF |
743 | get_image_name (HANDLE h, void *address, int unicode) |
744 | { | |
745 | static char buf[(2 * MAX_PATH) + 1]; | |
746 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
747 | char *address_ptr; | |
748 | int len = 0; | |
749 | char b[2]; | |
750 | DWORD done; | |
751 | ||
752 | /* Attempt to read the name of the dll that was detected. | |
753 | This is documented to work only when actively debugging | |
754 | a program. It will not work for attached processes. */ | |
755 | if (address == NULL) | |
756 | return NULL; | |
757 | ||
dfe7f3ac CF |
758 | /* See if we could read the address of a string, and that the |
759 | address isn't null. */ | |
9f476a01 | 760 | if (!ReadProcessMemory (h, address, &address_ptr, sizeof (address_ptr), &done) |
6f17862b | 761 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
762 | return NULL; |
763 | ||
764 | /* Find the length of the string */ | |
6f17862b CF |
765 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
766 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
767 | continue; | |
dfe7f3ac CF |
768 | |
769 | if (!unicode) | |
770 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
771 | else | |
772 | { | |
773 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
774 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
775 | &done); | |
776 | ||
777 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
778 | } | |
779 | ||
780 | return buf; | |
781 | } | |
782 | ||
24e60978 SC |
783 | /* Wait for child to do something. Return pid of child, or -1 in case |
784 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 785 | static int |
0a65a603 | 786 | handle_load_dll (void *dummy) |
24e60978 | 787 | { |
3a4b77d8 | 788 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
3cee93ac | 789 | char dll_buf[MAX_PATH + 1]; |
450005e7 | 790 | char *dll_name = NULL; |
450005e7 | 791 | char *p; |
3cee93ac | 792 | |
3a4b77d8 | 793 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 794 | |
1e37c281 | 795 | if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf)) |
8e860359 | 796 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 797 | |
1e37c281 | 798 | dll_name = dll_buf; |
24e60978 | 799 | |
dfe7f3ac CF |
800 | if (*dll_name == '\0') |
801 | dll_name = get_image_name (current_process_handle, event->lpImageName, event->fUnicode); | |
3cee93ac CF |
802 | if (!dll_name) |
803 | return 1; | |
804 | ||
3cb8e7f6 | 805 | register_loaded_dll (dll_name, (DWORD) event->lpBaseOfDll + 0x1000, auto_solib_add); |
450005e7 CF |
806 | |
807 | return 1; | |
808 | } | |
809 | ||
3ee6f623 CF |
810 | static void |
811 | win32_free_so (struct so_list *so) | |
812 | { | |
3ee6f623 CF |
813 | if (so->lm_info) |
814 | xfree (so->lm_info); | |
815 | } | |
816 | ||
3ee6f623 CF |
817 | static void |
818 | win32_relocate_section_addresses (struct so_list *so, | |
819 | struct section_table *sec) | |
820 | { | |
821 | /* FIXME */ | |
822 | return; | |
823 | } | |
824 | ||
3cb8e7f6 CF |
825 | static void |
826 | win32_solib_create_inferior_hook (void) | |
827 | { | |
828 | solib_add (NULL, 0, NULL, auto_solib_add); | |
829 | return; | |
830 | } | |
831 | ||
d3ff4a77 | 832 | static int |
0a65a603 | 833 | handle_unload_dll (void *dummy) |
d3ff4a77 CF |
834 | { |
835 | DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll + 0x1000; | |
3ee6f623 | 836 | struct so_list *so; |
d3ff4a77 CF |
837 | |
838 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 839 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 840 | { |
3ee6f623 | 841 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
842 | so->next = sodel->next; |
843 | if (!so->next) | |
844 | solib_end = so; | |
3ee6f623 | 845 | free_so (sodel); |
d3ff4a77 CF |
846 | return 1; |
847 | } | |
8a3fe4f8 | 848 | error (_("Error: dll starting at 0x%lx not found."), (DWORD) lpBaseOfDll); |
d3ff4a77 CF |
849 | |
850 | return 0; | |
851 | } | |
852 | ||
450005e7 | 853 | /* Clear list of loaded DLLs. */ |
3ee6f623 CF |
854 | static void |
855 | win32_clear_solib (void) | |
450005e7 | 856 | { |
450005e7 CF |
857 | solib_start.next = NULL; |
858 | solib_end = &solib_start; | |
859 | max_dll_name_len = sizeof ("DLL Name") - 1; | |
860 | } | |
295732ea | 861 | |
3cb8e7f6 CF |
862 | static void |
863 | win32_special_symbol_handling (void) | |
864 | { | |
865 | return; | |
866 | } | |
867 | ||
450005e7 CF |
868 | /* Load DLL symbol info. */ |
869 | void | |
7470a420 | 870 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 871 | { |
8e860359 | 872 | int n; |
450005e7 | 873 | dont_repeat (); |
8e860359 | 874 | |
450005e7 | 875 | if (args == NULL) |
8a3fe4f8 | 876 | error (_("dll-symbols requires a file name")); |
450005e7 | 877 | |
8e860359 CF |
878 | n = strlen (args); |
879 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
880 | { | |
881 | char *newargs = (char *) alloca (n + 4 + 1); | |
882 | strcpy (newargs, args); | |
883 | strcat (newargs, ".dll"); | |
884 | args = newargs; | |
885 | } | |
886 | ||
7470a420 | 887 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 888 | } |
450005e7 CF |
889 | |
890 | /* List currently loaded DLLs. */ | |
3ee6f623 | 891 | static void |
0a65a603 | 892 | info_dll_command (char *ignore, int from_tty) |
450005e7 | 893 | { |
3ee6f623 | 894 | struct so_list *so = &solib_start; |
450005e7 CF |
895 | |
896 | if (!so->next) | |
897 | return; | |
898 | ||
dfe7f3ac | 899 | printf_filtered ("%*s Load Address\n", -max_dll_name_len, "DLL Name"); |
450005e7 | 900 | while ((so = so->next) != NULL) |
3ee6f623 | 901 | printf_filtered ("%*s %08lx\n", -max_dll_name_len, so->so_name, so->lm_info->load_addr); |
450005e7 CF |
902 | |
903 | return; | |
24e60978 SC |
904 | } |
905 | ||
3cee93ac CF |
906 | /* Handle DEBUG_STRING output from child process. |
907 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
908 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
909 | static int | |
910 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
911 | { | |
912 | char *s; | |
913 | int gotasig = FALSE; | |
914 | ||
915 | if (!target_read_string | |
3a4b77d8 | 916 | ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0) |
3cee93ac CF |
917 | || !s || !*s) |
918 | return gotasig; | |
919 | ||
d3a09475 | 920 | if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0) |
3cee93ac | 921 | { |
d3a09475 | 922 | if (strncmp (s, "cYg", 3) != 0) |
8a3fe4f8 | 923 | warning (("%s"), s); |
3cee93ac | 924 | } |
d3a09475 | 925 | else |
3cee93ac CF |
926 | { |
927 | char *p; | |
1e37c281 JM |
928 | int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
929 | gotasig = target_signal_from_host (sig); | |
0714f9bf SS |
930 | ourstatus->value.sig = gotasig; |
931 | if (gotasig) | |
3cee93ac CF |
932 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
933 | } | |
934 | ||
b8c9b27d | 935 | xfree (s); |
3cee93ac CF |
936 | return gotasig; |
937 | } | |
24e60978 | 938 | |
c1748f97 PM |
939 | static int |
940 | display_selector (HANDLE thread, DWORD sel) | |
941 | { | |
942 | LDT_ENTRY info; | |
943 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
944 | { | |
945 | int base, limit; | |
946 | printf_filtered ("0x%03lx: ", sel); | |
947 | if (!info.HighWord.Bits.Pres) | |
baa93fa6 CF |
948 | { |
949 | puts_filtered ("Segment not present\n"); | |
950 | return 0; | |
951 | } | |
c1748f97 PM |
952 | base = (info.HighWord.Bits.BaseHi << 24) + |
953 | (info.HighWord.Bits.BaseMid << 16) | |
954 | + info.BaseLow; | |
955 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
956 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 957 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
958 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
959 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 960 | puts_filtered(" 32-bit "); |
c1748f97 | 961 | else |
baa93fa6 | 962 | puts_filtered(" 16-bit "); |
c1748f97 PM |
963 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
964 | { | |
965 | case 0: | |
baa93fa6 CF |
966 | puts_filtered ("Data (Read-Only, Exp-up"); |
967 | break; | |
c1748f97 | 968 | case 1: |
baa93fa6 CF |
969 | puts_filtered ("Data (Read/Write, Exp-up"); |
970 | break; | |
c1748f97 | 971 | case 2: |
baa93fa6 CF |
972 | puts_filtered ("Unused segment ("); |
973 | break; | |
c1748f97 | 974 | case 3: |
baa93fa6 CF |
975 | puts_filtered ("Data (Read/Write, Exp-down"); |
976 | break; | |
c1748f97 | 977 | case 4: |
baa93fa6 CF |
978 | puts_filtered ("Code (Exec-Only, N.Conf"); |
979 | break; | |
c1748f97 | 980 | case 5: |
baa93fa6 | 981 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
982 | break; |
983 | case 6: | |
baa93fa6 | 984 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
985 | break; |
986 | case 7: | |
baa93fa6 | 987 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
988 | break; |
989 | default: | |
990 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
991 | } | |
992 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 993 | puts_filtered(", N.Acc"); |
c1748f97 PM |
994 | puts_filtered (")\n"); |
995 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
996 | puts_filtered("System selector "); | |
997 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
998 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 999 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1000 | else |
1001 | puts_filtered ("Byte granular.\n"); | |
1002 | return 1; | |
1003 | } | |
1004 | else | |
1005 | { | |
1006 | printf_filtered ("Invalid selector 0x%lx.\n",sel); | |
1007 | return 0; | |
1008 | } | |
1009 | } | |
1010 | ||
1011 | static void | |
1012 | display_selectors (char * args, int from_tty) | |
1013 | { | |
1014 | if (!current_thread) | |
1015 | { | |
1016 | puts_filtered ("Impossible to display selectors now.\n"); | |
1017 | return; | |
1018 | } | |
1019 | if (!args) | |
1020 | { | |
1021 | ||
1022 | puts_filtered ("Selector $cs\n"); | |
1023 | display_selector (current_thread->h, | |
baa93fa6 | 1024 | current_thread->context.SegCs); |
c1748f97 PM |
1025 | puts_filtered ("Selector $ds\n"); |
1026 | display_selector (current_thread->h, | |
baa93fa6 | 1027 | current_thread->context.SegDs); |
c1748f97 PM |
1028 | puts_filtered ("Selector $es\n"); |
1029 | display_selector (current_thread->h, | |
baa93fa6 | 1030 | current_thread->context.SegEs); |
c1748f97 PM |
1031 | puts_filtered ("Selector $ss\n"); |
1032 | display_selector (current_thread->h, | |
baa93fa6 | 1033 | current_thread->context.SegSs); |
c1748f97 PM |
1034 | puts_filtered ("Selector $fs\n"); |
1035 | display_selector (current_thread->h, | |
1036 | current_thread->context.SegFs); | |
1037 | puts_filtered ("Selector $gs\n"); | |
1038 | display_selector (current_thread->h, | |
baa93fa6 | 1039 | current_thread->context.SegGs); |
c1748f97 PM |
1040 | } |
1041 | else | |
1042 | { | |
1043 | int sel; | |
1044 | sel = parse_and_eval_long (args); | |
1045 | printf_filtered ("Selector \"%s\"\n",args); | |
1046 | display_selector (current_thread->h, sel); | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | static struct cmd_list_element *info_w32_cmdlist = NULL; | |
1051 | ||
1052 | static void | |
1053 | info_w32_command (char *args, int from_tty) | |
1054 | { | |
1055 | help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout); | |
1056 | } | |
1057 | ||
1058 | ||
7393af7c | 1059 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
4e52d31c | 1060 | printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \ |
7393af7c PM |
1061 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress) |
1062 | ||
36339ecd | 1063 | static int |
450005e7 | 1064 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1065 | { |
3cee93ac | 1066 | thread_info *th; |
29fe111d | 1067 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 1068 | |
29fe111d | 1069 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1070 | |
3cee93ac CF |
1071 | /* Record the context of the current thread */ |
1072 | th = thread_rec (current_event.dwThreadId, -1); | |
24e60978 | 1073 | |
29fe111d | 1074 | switch (code) |
24e60978 | 1075 | { |
1ef980b9 | 1076 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c PM |
1077 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
1078 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
8da8e0b3 CF |
1079 | { |
1080 | char *fn; | |
1081 | if (find_pc_partial_function ((CORE_ADDR) current_event.u.Exception | |
1082 | .ExceptionRecord.ExceptionAddress, | |
1083 | &fn, NULL, NULL) | |
1084 | && strncmp (fn, "KERNEL32!IsBad", strlen ("KERNEL32!IsBad")) == 0) | |
1085 | return 0; | |
1086 | } | |
7393af7c PM |
1087 | break; |
1088 | case STATUS_STACK_OVERFLOW: | |
1089 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
1ef980b9 | 1090 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
1091 | break; |
1092 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1093 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
1094 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1095 | break; | |
1096 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1097 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
1098 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1099 | break; | |
1100 | case STATUS_FLOAT_INEXACT_RESULT: | |
1101 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
1102 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1103 | break; | |
1104 | case STATUS_FLOAT_INVALID_OPERATION: | |
1105 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1106 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1107 | break; | |
1108 | case STATUS_FLOAT_OVERFLOW: | |
1109 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1110 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1111 | break; | |
1112 | case STATUS_FLOAT_STACK_CHECK: | |
1113 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1114 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 | 1115 | break; |
3b7c8b74 | 1116 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1117 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1118 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1119 | break; | |
3b7c8b74 | 1120 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1121 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1122 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1123 | break; | |
3b7c8b74 | 1124 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1125 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
3b7c8b74 | 1126 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
3b7c8b74 | 1127 | break; |
7393af7c PM |
1128 | case STATUS_INTEGER_OVERFLOW: |
1129 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1130 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 SC |
1131 | break; |
1132 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1133 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
1ef980b9 SC |
1134 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1135 | break; | |
1136 | case DBG_CONTROL_C: | |
7393af7c | 1137 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
1ef980b9 | 1138 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1139 | break; |
1140 | case DBG_CONTROL_BREAK: | |
7393af7c | 1141 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1142 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
1ef980b9 SC |
1143 | break; |
1144 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1145 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
1ef980b9 SC |
1146 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1147 | break; | |
8227c82d | 1148 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1149 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1150 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1151 | break; | |
1152 | case EXCEPTION_PRIV_INSTRUCTION: | |
1153 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1154 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1155 | break; | |
1156 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1157 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1158 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1159 | break; | |
1ef980b9 | 1160 | default: |
02e423b9 CF |
1161 | if (current_event.u.Exception.dwFirstChance) |
1162 | return 0; | |
29fe111d | 1163 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n", |
3a4b77d8 | 1164 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
8e860359 | 1165 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress); |
24e60978 | 1166 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 1167 | break; |
24e60978 | 1168 | } |
24e60978 | 1169 | exception_count++; |
7393af7c | 1170 | last_sig = ourstatus->value.sig; |
36339ecd | 1171 | return 1; |
24e60978 SC |
1172 | } |
1173 | ||
3cee93ac CF |
1174 | /* Resume all artificially suspended threads if we are continuing |
1175 | execution */ | |
1176 | static BOOL | |
3ee6f623 | 1177 | win32_continue (DWORD continue_status, int id) |
3cee93ac CF |
1178 | { |
1179 | int i; | |
1180 | thread_info *th; | |
1181 | BOOL res; | |
1182 | ||
7393af7c PM |
1183 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, %s);\n", |
1184 | current_event.dwProcessId, current_event.dwThreadId, | |
dfe7f3ac | 1185 | continue_status == DBG_CONTINUE ? |
7393af7c | 1186 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
0714f9bf SS |
1187 | res = ContinueDebugEvent (current_event.dwProcessId, |
1188 | current_event.dwThreadId, | |
1189 | continue_status); | |
1e37c281 | 1190 | continue_status = 0; |
0714f9bf | 1191 | if (res) |
3a4b77d8 | 1192 | for (th = &thread_head; (th = th->next) != NULL;) |
29fe111d | 1193 | if (((id == -1) || (id == (int) th->id)) && th->suspend_count) |
3cee93ac | 1194 | { |
fa4ba8da | 1195 | |
3cee93ac CF |
1196 | for (i = 0; i < th->suspend_count; i++) |
1197 | (void) ResumeThread (th->h); | |
1198 | th->suspend_count = 0; | |
fa4ba8da PM |
1199 | if (debug_registers_changed) |
1200 | { | |
3ade5333 | 1201 | /* Only change the value of the debug registers */ |
fa4ba8da PM |
1202 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; |
1203 | th->context.Dr0 = dr[0]; | |
1204 | th->context.Dr1 = dr[1]; | |
1205 | th->context.Dr2 = dr[2]; | |
1206 | th->context.Dr3 = dr[3]; | |
1207 | /* th->context.Dr6 = dr[6]; | |
dfe7f3ac | 1208 | FIXME: should we set dr6 also ?? */ |
fa4ba8da PM |
1209 | th->context.Dr7 = dr[7]; |
1210 | CHECK (SetThreadContext (th->h, &th->context)); | |
1211 | th->context.ContextFlags = 0; | |
1212 | } | |
3cee93ac CF |
1213 | } |
1214 | ||
fa4ba8da | 1215 | debug_registers_changed = 0; |
3cee93ac CF |
1216 | return res; |
1217 | } | |
1218 | ||
d6dc8049 CF |
1219 | /* Called in pathological case where Windows fails to send a |
1220 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1221 | static DWORD |
5439edaa | 1222 | fake_create_process (void) |
3ade5333 CF |
1223 | { |
1224 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1225 | current_event.dwProcessId); | |
1226 | main_thread_id = current_event.dwThreadId; | |
3ee6f623 | 1227 | current_thread = win32_add_thread (main_thread_id, |
3ade5333 CF |
1228 | current_event.u.CreateThread.hThread); |
1229 | return main_thread_id; | |
1230 | } | |
1231 | ||
8a892701 CF |
1232 | /* Get the next event from the child. Return 1 if the event requires |
1233 | handling by WFI (or whatever). | |
1234 | */ | |
1e37c281 | 1235 | static int |
3ee6f623 | 1236 | get_win32_debug_event (int pid, struct target_waitstatus *ourstatus) |
1e37c281 JM |
1237 | { |
1238 | BOOL debug_event; | |
8a892701 | 1239 | DWORD continue_status, event_code; |
87a45c96 | 1240 | thread_info *th; |
8a892701 | 1241 | static thread_info dummy_thread_info; |
450005e7 | 1242 | int retval = 0; |
1e37c281 | 1243 | |
7393af7c | 1244 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1245 | |
8a892701 | 1246 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1247 | goto out; |
1e37c281 JM |
1248 | |
1249 | event_count++; | |
1250 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1251 | |
8a892701 | 1252 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1253 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1254 | th = NULL; |
8a892701 CF |
1255 | |
1256 | switch (event_code) | |
1e37c281 JM |
1257 | { |
1258 | case CREATE_THREAD_DEBUG_EVENT: | |
1259 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1260 | (unsigned) current_event.dwProcessId, |
1261 | (unsigned) current_event.dwThreadId, | |
1262 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1263 | if (saw_create != 1) |
3ade5333 CF |
1264 | { |
1265 | if (!saw_create && attach_flag) | |
1266 | { | |
d6dc8049 CF |
1267 | /* Kludge around a Windows bug where first event is a create |
1268 | thread event. Caused when attached process does not have | |
1269 | a main thread. */ | |
3ade5333 CF |
1270 | retval = ourstatus->value.related_pid = fake_create_process (); |
1271 | saw_create++; | |
1272 | } | |
1273 | break; | |
1274 | } | |
1e37c281 | 1275 | /* Record the existence of this thread */ |
3ee6f623 | 1276 | th = win32_add_thread (current_event.dwThreadId, |
8a892701 | 1277 | current_event.u.CreateThread.hThread); |
1e37c281 JM |
1278 | if (info_verbose) |
1279 | printf_unfiltered ("[New %s]\n", | |
39f77062 KB |
1280 | target_pid_to_str ( |
1281 | pid_to_ptid (current_event.dwThreadId))); | |
450005e7 | 1282 | retval = current_event.dwThreadId; |
1e37c281 JM |
1283 | break; |
1284 | ||
1285 | case EXIT_THREAD_DEBUG_EVENT: | |
1286 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1287 | (unsigned) current_event.dwProcessId, |
1288 | (unsigned) current_event.dwThreadId, | |
1289 | "EXIT_THREAD_DEBUG_EVENT")); | |
87a45c96 CF |
1290 | if (current_event.dwThreadId != main_thread_id) |
1291 | { | |
3ee6f623 | 1292 | win32_delete_thread (current_event.dwThreadId); |
87a45c96 CF |
1293 | th = &dummy_thread_info; |
1294 | } | |
1e37c281 JM |
1295 | break; |
1296 | ||
1297 | case CREATE_PROCESS_DEBUG_EVENT: | |
1298 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1299 | (unsigned) current_event.dwProcessId, |
1300 | (unsigned) current_event.dwThreadId, | |
1301 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1302 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac CF |
1303 | if (++saw_create != 1) |
1304 | { | |
1305 | CloseHandle (current_event.u.CreateProcessInfo.hProcess); | |
1306 | break; | |
1307 | } | |
1e37c281 | 1308 | |
dfe7f3ac | 1309 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1310 | if (main_thread_id) |
3ee6f623 | 1311 | win32_delete_thread (main_thread_id); |
9d3789f7 | 1312 | main_thread_id = current_event.dwThreadId; |
1e37c281 | 1313 | /* Add the main thread */ |
3ee6f623 | 1314 | th = win32_add_thread (main_thread_id, |
8a892701 | 1315 | current_event.u.CreateProcessInfo.hThread); |
9d3789f7 | 1316 | retval = ourstatus->value.related_pid = current_event.dwThreadId; |
1e37c281 JM |
1317 | break; |
1318 | ||
1319 | case EXIT_PROCESS_DEBUG_EVENT: | |
1320 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1321 | (unsigned) current_event.dwProcessId, |
1322 | (unsigned) current_event.dwThreadId, | |
1323 | "EXIT_PROCESS_DEBUG_EVENT")); | |
dfe7f3ac CF |
1324 | if (saw_create != 1) |
1325 | break; | |
1e37c281 JM |
1326 | ourstatus->kind = TARGET_WAITKIND_EXITED; |
1327 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1328 | CloseHandle (current_process_handle); | |
9d3789f7 | 1329 | retval = main_thread_id; |
8a892701 | 1330 | break; |
1e37c281 JM |
1331 | |
1332 | case LOAD_DLL_DEBUG_EVENT: | |
1333 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1334 | (unsigned) current_event.dwProcessId, |
1335 | (unsigned) current_event.dwThreadId, | |
1336 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1337 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1338 | if (saw_create != 1) |
1339 | break; | |
8a892701 | 1340 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
1e37c281 | 1341 | registers_changed (); /* mark all regs invalid */ |
450005e7 CF |
1342 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1343 | ourstatus->value.integer = 0; | |
9d3789f7 | 1344 | retval = main_thread_id; |
5633f842 | 1345 | re_enable_breakpoints_in_shlibs (); |
1e37c281 JM |
1346 | break; |
1347 | ||
1348 | case UNLOAD_DLL_DEBUG_EVENT: | |
1349 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1350 | (unsigned) current_event.dwProcessId, |
1351 | (unsigned) current_event.dwThreadId, | |
1352 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1353 | if (saw_create != 1) |
1354 | break; | |
d3ff4a77 CF |
1355 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
1356 | registers_changed (); /* mark all regs invalid */ | |
1357 | /* ourstatus->kind = TARGET_WAITKIND_UNLOADED; | |
3bccec63 | 1358 | does not exist yet. */ |
d3ff4a77 | 1359 | break; |
1e37c281 JM |
1360 | |
1361 | case EXCEPTION_DEBUG_EVENT: | |
1362 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1363 | (unsigned) current_event.dwProcessId, |
1364 | (unsigned) current_event.dwThreadId, | |
1365 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1366 | if (saw_create != 1) |
1367 | break; | |
02e423b9 CF |
1368 | if (handle_exception (ourstatus)) |
1369 | retval = current_event.dwThreadId; | |
8da8e0b3 CF |
1370 | else |
1371 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1e37c281 JM |
1372 | break; |
1373 | ||
8a892701 | 1374 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
1e37c281 | 1375 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", |
8a892701 CF |
1376 | (unsigned) current_event.dwProcessId, |
1377 | (unsigned) current_event.dwThreadId, | |
1378 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1379 | if (saw_create != 1) |
1380 | break; | |
8e860359 | 1381 | if (handle_output_debug_string (ourstatus)) |
9d3789f7 | 1382 | retval = main_thread_id; |
1e37c281 | 1383 | break; |
9d3789f7 | 1384 | |
1e37c281 | 1385 | default: |
dfe7f3ac CF |
1386 | if (saw_create != 1) |
1387 | break; | |
29fe111d CF |
1388 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1389 | (DWORD) current_event.dwProcessId, | |
1390 | (DWORD) current_event.dwThreadId); | |
1391 | printf_unfiltered (" unknown event code %ld\n", | |
1e37c281 JM |
1392 | current_event.dwDebugEventCode); |
1393 | break; | |
1394 | } | |
1395 | ||
dfe7f3ac | 1396 | if (!retval || saw_create != 1) |
3ee6f623 | 1397 | CHECK (win32_continue (continue_status, -1)); |
450005e7 | 1398 | else |
9d3789f7 | 1399 | { |
39f77062 | 1400 | inferior_ptid = pid_to_ptid (retval); |
3ade5333 | 1401 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1402 | } |
1e37c281 JM |
1403 | |
1404 | out: | |
450005e7 | 1405 | return retval; |
1e37c281 JM |
1406 | } |
1407 | ||
1e37c281 | 1408 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1409 | static ptid_t |
3ee6f623 | 1410 | win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus) |
24e60978 | 1411 | { |
39f77062 KB |
1412 | int pid = PIDGET (ptid); |
1413 | ||
24e60978 SC |
1414 | /* We loop when we get a non-standard exception rather than return |
1415 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1416 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 SC |
1417 | the birth or death of threads, which mean that the current thread |
1418 | isn't necessarily what you think it is. */ | |
1419 | ||
1420 | while (1) | |
450005e7 | 1421 | { |
3ee6f623 | 1422 | int retval = get_win32_debug_event (pid, ourstatus); |
450005e7 | 1423 | if (retval) |
39f77062 | 1424 | return pid_to_ptid (retval); |
450005e7 CF |
1425 | else |
1426 | { | |
1427 | int detach = 0; | |
3cee93ac | 1428 | |
98bbd631 AC |
1429 | if (deprecated_ui_loop_hook != NULL) |
1430 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1431 | |
450005e7 | 1432 | if (detach) |
3ee6f623 | 1433 | win32_kill_inferior (); |
450005e7 CF |
1434 | } |
1435 | } | |
24e60978 SC |
1436 | } |
1437 | ||
9d3789f7 | 1438 | static void |
3ee6f623 | 1439 | do_initial_win32_stuff (DWORD pid) |
9d3789f7 CF |
1440 | { |
1441 | extern int stop_after_trap; | |
fa4ba8da | 1442 | int i; |
9d3789f7 | 1443 | |
7393af7c | 1444 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1445 | event_count = 0; |
1446 | exception_count = 0; | |
fa4ba8da | 1447 | debug_registers_changed = 0; |
dfe7f3ac | 1448 | debug_registers_used = 0; |
fa4ba8da PM |
1449 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1450 | dr[i] = 0; | |
9d3789f7 CF |
1451 | current_event.dwProcessId = pid; |
1452 | memset (¤t_event, 0, sizeof (current_event)); | |
3ee6f623 | 1453 | push_target (&win32_ops); |
5633f842 | 1454 | disable_breakpoints_in_shlibs (1); |
3ee6f623 | 1455 | win32_clear_solib (); |
9d3789f7 CF |
1456 | clear_proceed_status (); |
1457 | init_wait_for_inferior (); | |
1458 | ||
1459 | target_terminal_init (); | |
1460 | target_terminal_inferior (); | |
1461 | ||
1462 | while (1) | |
1463 | { | |
1464 | stop_after_trap = 1; | |
1465 | wait_for_inferior (); | |
1466 | if (stop_signal != TARGET_SIGNAL_TRAP) | |
1467 | resume (0, stop_signal); | |
1468 | else | |
1469 | break; | |
1470 | } | |
1471 | stop_after_trap = 0; | |
1472 | return; | |
1473 | } | |
1474 | ||
02cc9f49 CV |
1475 | /* Since Windows XP, detaching from a process is supported by Windows. |
1476 | The following code tries loading the appropriate functions dynamically. | |
1477 | If loading these functions succeeds use them to actually detach from | |
1478 | the inferior process, otherwise behave as usual, pretending that | |
1479 | detach has worked. */ | |
1480 | static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL); | |
1481 | static BOOL WINAPI (*DebugActiveProcessStop)(DWORD); | |
1482 | ||
1483 | static int | |
5ae5f592 | 1484 | has_detach_ability (void) |
02cc9f49 CV |
1485 | { |
1486 | static HMODULE kernel32 = NULL; | |
1487 | ||
1488 | if (!kernel32) | |
1489 | kernel32 = LoadLibrary ("kernel32.dll"); | |
1490 | if (kernel32) | |
1491 | { | |
1492 | if (!DebugSetProcessKillOnExit) | |
1493 | DebugSetProcessKillOnExit = GetProcAddress (kernel32, | |
1494 | "DebugSetProcessKillOnExit"); | |
1495 | if (!DebugActiveProcessStop) | |
1496 | DebugActiveProcessStop = GetProcAddress (kernel32, | |
1497 | "DebugActiveProcessStop"); | |
1498 | if (DebugSetProcessKillOnExit && DebugActiveProcessStop) | |
1499 | return 1; | |
1500 | } | |
1501 | return 0; | |
1502 | } | |
24e60978 | 1503 | |
616a9dc4 CV |
1504 | /* Try to set or remove a user privilege to the current process. Return -1 |
1505 | if that fails, the previous setting of that privilege otherwise. | |
1506 | ||
1507 | This code is copied from the Cygwin source code and rearranged to allow | |
1508 | dynamically loading of the needed symbols from advapi32 which is only | |
1509 | available on NT/2K/XP. */ | |
1510 | static int | |
1511 | set_process_privilege (const char *privilege, BOOL enable) | |
1512 | { | |
1513 | static HMODULE advapi32 = NULL; | |
1514 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
1515 | static BOOL WINAPI (*LookupPrivilegeValue)(LPCSTR, LPCSTR, PLUID); | |
1516 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, | |
1517 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
1518 | ||
1519 | HANDLE token_hdl = NULL; | |
1520 | LUID restore_priv; | |
1521 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1522 | int ret = -1; | |
1523 | DWORD size; | |
1524 | ||
1525 | if (GetVersion () >= 0x80000000) /* No security availbale on 9x/Me */ | |
1526 | return 0; | |
1527 | ||
1528 | if (!advapi32) | |
1529 | { | |
1530 | if (!(advapi32 = LoadLibrary ("advapi32.dll"))) | |
1531 | goto out; | |
1532 | if (!OpenProcessToken) | |
1533 | OpenProcessToken = GetProcAddress (advapi32, "OpenProcessToken"); | |
1534 | if (!LookupPrivilegeValue) | |
1535 | LookupPrivilegeValue = GetProcAddress (advapi32, | |
1536 | "LookupPrivilegeValueA"); | |
1537 | if (!AdjustTokenPrivileges) | |
1538 | AdjustTokenPrivileges = GetProcAddress (advapi32, | |
1539 | "AdjustTokenPrivileges"); | |
1540 | if (!OpenProcessToken || !LookupPrivilegeValue || !AdjustTokenPrivileges) | |
295732ea | 1541 | { |
616a9dc4 CV |
1542 | advapi32 = NULL; |
1543 | goto out; | |
1544 | } | |
1545 | } | |
295732ea | 1546 | |
616a9dc4 CV |
1547 | if (!OpenProcessToken (GetCurrentProcess (), |
1548 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1549 | &token_hdl)) | |
1550 | goto out; | |
1551 | ||
1552 | if (!LookupPrivilegeValue (NULL, privilege, &restore_priv)) | |
1553 | goto out; | |
1554 | ||
1555 | new_priv.PrivilegeCount = 1; | |
1556 | new_priv.Privileges[0].Luid = restore_priv; | |
1557 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1558 | ||
1559 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1560 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1561 | goto out; |
1562 | #if 0 | |
1563 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1564 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
3ee6f623 | 1565 | win32_attach(). */ |
616a9dc4 CV |
1566 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
1567 | be enabled. GetLastError () returns an correct error code, though. */ | |
1568 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) | |
1569 | goto out; | |
1570 | #endif | |
1571 | ||
1572 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1573 | ||
1574 | out: | |
1575 | if (token_hdl) | |
1576 | CloseHandle (token_hdl); | |
1577 | ||
1578 | return ret; | |
1579 | } | |
1580 | ||
02cc9f49 | 1581 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1582 | static void |
3ee6f623 | 1583 | win32_attach (char *args, int from_tty) |
24e60978 SC |
1584 | { |
1585 | BOOL ok; | |
559e75c0 | 1586 | DWORD pid; |
24e60978 SC |
1587 | |
1588 | if (!args) | |
e2e0b3e5 | 1589 | error_no_arg (_("process-id to attach")); |
24e60978 | 1590 | |
616a9dc4 CV |
1591 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1592 | { | |
1593 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
1594 | printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n"); | |
1595 | } | |
1596 | ||
baa93fa6 CF |
1597 | pid = strtoul (args, 0, 0); /* Windows pid */ |
1598 | ||
3ee6f623 | 1599 | win32_init_thread_list (); |
9d3789f7 | 1600 | ok = DebugActiveProcess (pid); |
91a175b3 | 1601 | saw_create = 0; |
24e60978 SC |
1602 | |
1603 | if (!ok) | |
baa93fa6 CF |
1604 | { |
1605 | /* Try fall back to Cygwin pid */ | |
1606 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); | |
1607 | ||
1608 | if (pid > 0) | |
1609 | ok = DebugActiveProcess (pid); | |
1610 | ||
1611 | if (!ok) | |
8a3fe4f8 | 1612 | error (_("Can't attach to process.")); |
baa93fa6 | 1613 | } |
24e60978 | 1614 | |
02cc9f49 | 1615 | if (has_detach_ability ()) |
3ade5333 CF |
1616 | DebugSetProcessKillOnExit (FALSE); |
1617 | ||
1618 | attach_flag = 1; | |
02cc9f49 | 1619 | |
24e60978 SC |
1620 | if (from_tty) |
1621 | { | |
1622 | char *exec_file = (char *) get_exec_file (0); | |
1623 | ||
1624 | if (exec_file) | |
1625 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1626 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1627 | else |
1628 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1629 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1630 | |
1631 | gdb_flush (gdb_stdout); | |
1632 | } | |
1633 | ||
3ee6f623 | 1634 | do_initial_win32_stuff (pid); |
9d3789f7 | 1635 | target_terminal_ours (); |
24e60978 SC |
1636 | } |
1637 | ||
24e60978 | 1638 | static void |
3ee6f623 | 1639 | win32_detach (char *args, int from_tty) |
24e60978 | 1640 | { |
02cc9f49 CV |
1641 | int detached = 1; |
1642 | ||
1643 | if (has_detach_ability ()) | |
1644 | { | |
1645 | delete_command (NULL, 0); | |
3ee6f623 | 1646 | win32_continue (DBG_CONTINUE, -1); |
02cc9f49 | 1647 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
3bccec63 | 1648 | { |
8a3fe4f8 | 1649 | error (_("Can't detach process %lu (error %lu)"), |
02cc9f49 CV |
1650 | current_event.dwProcessId, GetLastError ()); |
1651 | detached = 0; | |
3bccec63 | 1652 | } |
02cc9f49 CV |
1653 | DebugSetProcessKillOnExit (FALSE); |
1654 | } | |
1655 | if (detached && from_tty) | |
24e60978 SC |
1656 | { |
1657 | char *exec_file = get_exec_file (0); | |
1658 | if (exec_file == 0) | |
1659 | exec_file = ""; | |
02cc9f49 CV |
1660 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1661 | current_event.dwProcessId); | |
24e60978 SC |
1662 | gdb_flush (gdb_stdout); |
1663 | } | |
39f77062 | 1664 | inferior_ptid = null_ptid; |
3ee6f623 | 1665 | unpush_target (&win32_ops); |
24e60978 SC |
1666 | } |
1667 | ||
3ee6f623 CF |
1668 | static char * |
1669 | win32_pid_to_exec_file (int pid) | |
47216e51 CV |
1670 | { |
1671 | /* Try to find the process path using the Cygwin internal process list | |
1672 | pid isn't a valid pid, unfortunately. Use current_event.dwProcessId | |
1673 | instead. */ | |
1674 | /* TODO: Also find native Windows processes using CW_GETPINFO_FULL. */ | |
1675 | ||
1676 | static char path[MAX_PATH + 1]; | |
1677 | char *path_ptr = NULL; | |
1678 | int cpid; | |
1679 | struct external_pinfo *pinfo; | |
1680 | ||
1681 | cygwin_internal (CW_LOCK_PINFO, 1000); | |
1682 | for (cpid = 0; | |
1683 | (pinfo = (struct external_pinfo *) | |
3cb8e7f6 | 1684 | cygwin_internal (CW_GETPINFO, cpid | CW_NEXTPID)); |
47216e51 CV |
1685 | cpid = pinfo->pid) |
1686 | { | |
1687 | if (pinfo->dwProcessId == current_event.dwProcessId) /* Got it */ | |
1688 | { | |
3cb8e7f6 CF |
1689 | cygwin_conv_to_full_posix_path (pinfo->progname, path); |
1690 | path_ptr = path; | |
1691 | break; | |
47216e51 CV |
1692 | } |
1693 | } | |
1694 | cygwin_internal (CW_UNLOCK_PINFO); | |
3cb8e7f6 | 1695 | return path_ptr; |
47216e51 CV |
1696 | } |
1697 | ||
24e60978 SC |
1698 | /* Print status information about what we're accessing. */ |
1699 | ||
1700 | static void | |
3ee6f623 | 1701 | win32_files_info (struct target_ops *ignore) |
24e60978 SC |
1702 | { |
1703 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
39f77062 | 1704 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid)); |
24e60978 SC |
1705 | } |
1706 | ||
24e60978 | 1707 | static void |
3ee6f623 | 1708 | win32_open (char *arg, int from_tty) |
24e60978 | 1709 | { |
8a3fe4f8 | 1710 | error (_("Use the \"run\" command to start a Unix child process.")); |
24e60978 SC |
1711 | } |
1712 | ||
39f77062 | 1713 | /* Start an inferior win32 child process and sets inferior_ptid to its pid. |
24e60978 SC |
1714 | EXEC_FILE is the file to run. |
1715 | ALLARGS is a string containing the arguments to the program. | |
1716 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1717 | ||
24e60978 | 1718 | static void |
3ee6f623 | 1719 | win32_create_inferior (char *exec_file, char *allargs, char **env, |
c27cda74 | 1720 | int from_tty) |
24e60978 | 1721 | { |
1750a5ef SC |
1722 | char *winenv; |
1723 | char *temp; | |
3a4b77d8 | 1724 | int envlen; |
1750a5ef | 1725 | int i; |
24e60978 SC |
1726 | STARTUPINFO si; |
1727 | PROCESS_INFORMATION pi; | |
24e60978 SC |
1728 | BOOL ret; |
1729 | DWORD flags; | |
eb708f2e | 1730 | char *args; |
dfe7f3ac CF |
1731 | char real_path[MAXPATHLEN]; |
1732 | char *toexec; | |
349b409f CF |
1733 | char shell[MAX_PATH + 1]; /* Path to shell */ |
1734 | const char *sh; | |
2becadee CF |
1735 | int tty; |
1736 | int ostdin, ostdout, ostderr; | |
3cb3b8df | 1737 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
1738 | |
1739 | if (!exec_file) | |
8a3fe4f8 | 1740 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
1741 | |
1742 | memset (&si, 0, sizeof (si)); | |
1743 | si.cb = sizeof (si); | |
1744 | ||
349b409f | 1745 | if (!useshell) |
dfe7f3ac CF |
1746 | { |
1747 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1748 | cygwin_conv_to_win32_path (exec_file, real_path); | |
1749 | toexec = real_path; | |
1750 | } | |
1751 | else | |
1752 | { | |
349b409f CF |
1753 | char *newallargs; |
1754 | sh = getenv ("SHELL"); | |
1755 | if (!sh) | |
1756 | sh = "/bin/sh"; | |
1757 | cygwin_conv_to_win32_path (sh, shell); | |
1758 | newallargs = alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
1759 | + strlen (allargs) + 2); | |
dfe7f3ac CF |
1760 | sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs); |
1761 | allargs = newallargs; | |
1762 | toexec = shell; | |
1763 | flags = DEBUG_PROCESS; | |
1764 | } | |
eb708f2e | 1765 | |
eeb25b8a PM |
1766 | if (new_group) |
1767 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1768 | ||
1769 | if (new_console) | |
1770 | flags |= CREATE_NEW_CONSOLE; | |
1771 | ||
3ade5333 CF |
1772 | attach_flag = 0; |
1773 | ||
dfe7f3ac CF |
1774 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
1775 | strcpy (args, toexec); | |
eb708f2e SC |
1776 | strcat (args, " "); |
1777 | strcat (args, allargs); | |
1778 | ||
e88c49c3 DE |
1779 | /* Prepare the environment vars for CreateProcess. */ |
1780 | { | |
349b409f | 1781 | /* This code used to assume all env vars were file names and would |
e88c49c3 | 1782 | translate them all to win32 style. That obviously doesn't work in the |
2dcfc9c7 DE |
1783 | general case. The current rule is that we only translate PATH. |
1784 | We need to handle PATH because we're about to call CreateProcess and | |
1785 | it uses PATH to find DLL's. Fortunately PATH has a well-defined value | |
1786 | in both posix and win32 environments. cygwin.dll will change it back | |
1787 | to posix style if necessary. */ | |
e88c49c3 DE |
1788 | |
1789 | static const char *conv_path_names[] = | |
3a4b77d8 JM |
1790 | { |
1791 | "PATH=", | |
1792 | 0 | |
1793 | }; | |
e88c49c3 DE |
1794 | |
1795 | /* CreateProcess takes the environment list as a null terminated set of | |
1796 | strings (i.e. two nulls terminate the list). */ | |
1797 | ||
1798 | /* Get total size for env strings. */ | |
1799 | for (envlen = 0, i = 0; env[i] && *env[i]; i++) | |
1800 | { | |
2dcfc9c7 | 1801 | int j, len; |
e88c49c3 | 1802 | |
2dcfc9c7 DE |
1803 | for (j = 0; conv_path_names[j]; j++) |
1804 | { | |
1805 | len = strlen (conv_path_names[j]); | |
1806 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 1807 | { |
29fe111d | 1808 | if (cygwin_posix_path_list_p (env[i] + len)) |
2dcfc9c7 | 1809 | envlen += len |
29fe111d | 1810 | + cygwin_posix_to_win32_path_list_buf_size (env[i] + len); |
2dcfc9c7 DE |
1811 | else |
1812 | envlen += strlen (env[i]) + 1; | |
1813 | break; | |
e88c49c3 | 1814 | } |
e88c49c3 | 1815 | } |
2dcfc9c7 | 1816 | if (conv_path_names[j] == NULL) |
e88c49c3 DE |
1817 | envlen += strlen (env[i]) + 1; |
1818 | } | |
1819 | ||
1820 | winenv = alloca (envlen + 1); | |
1821 | ||
1822 | /* Copy env strings into new buffer. */ | |
3cee93ac | 1823 | for (temp = winenv, i = 0; env[i] && *env[i]; i++) |
e88c49c3 | 1824 | { |
2dcfc9c7 | 1825 | int j, len; |
e88c49c3 | 1826 | |
2dcfc9c7 DE |
1827 | for (j = 0; conv_path_names[j]; j++) |
1828 | { | |
1829 | len = strlen (conv_path_names[j]); | |
1830 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
e88c49c3 | 1831 | { |
29fe111d | 1832 | if (cygwin_posix_path_list_p (env[i] + len)) |
e88c49c3 DE |
1833 | { |
1834 | memcpy (temp, env[i], len); | |
29fe111d | 1835 | cygwin_posix_to_win32_path_list (env[i] + len, temp + len); |
e88c49c3 | 1836 | } |
2dcfc9c7 DE |
1837 | else |
1838 | strcpy (temp, env[i]); | |
1839 | break; | |
e88c49c3 | 1840 | } |
e88c49c3 | 1841 | } |
2dcfc9c7 | 1842 | if (conv_path_names[j] == NULL) |
e88c49c3 | 1843 | strcpy (temp, env[i]); |
2dcfc9c7 | 1844 | |
e88c49c3 DE |
1845 | temp += strlen (temp) + 1; |
1846 | } | |
1847 | ||
1848 | /* Final nil string to terminate new env. */ | |
1849 | *temp = 0; | |
1850 | } | |
1750a5ef | 1851 | |
2becadee CF |
1852 | if (!inferior_io_terminal) |
1853 | tty = ostdin = ostdout = ostderr = -1; | |
1854 | else | |
1855 | { | |
1856 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
1857 | if (tty < 0) | |
1858 | { | |
1859 | print_sys_errmsg (inferior_io_terminal, errno); | |
1860 | ostdin = ostdout = ostderr = -1; | |
1861 | } | |
1862 | else | |
1863 | { | |
1864 | ostdin = dup (0); | |
1865 | ostdout = dup (1); | |
1866 | ostderr = dup (2); | |
1867 | dup2 (tty, 0); | |
1868 | dup2 (tty, 1); | |
1869 | dup2 (tty, 2); | |
1870 | } | |
1871 | } | |
1872 | ||
3ee6f623 | 1873 | win32_init_thread_list (); |
1750a5ef | 1874 | ret = CreateProcess (0, |
3a4b77d8 | 1875 | args, /* command line */ |
24e60978 SC |
1876 | NULL, /* Security */ |
1877 | NULL, /* thread */ | |
1878 | TRUE, /* inherit handles */ | |
1879 | flags, /* start flags */ | |
1750a5ef | 1880 | winenv, |
24e60978 SC |
1881 | NULL, /* current directory */ |
1882 | &si, | |
1883 | &pi); | |
2becadee CF |
1884 | if (tty >= 0) |
1885 | { | |
1886 | close (tty); | |
1887 | dup2 (ostdin, 0); | |
1888 | dup2 (ostdout, 1); | |
1889 | dup2 (ostderr, 2); | |
1890 | close (ostdin); | |
1891 | close (ostdout); | |
1892 | close (ostderr); | |
1893 | } | |
1894 | ||
24e60978 | 1895 | if (!ret) |
8a3fe4f8 AC |
1896 | error (_("Error creating process %s, (error %d)."), |
1897 | exec_file, (unsigned) GetLastError ()); | |
24e60978 | 1898 | |
700b351b CF |
1899 | CloseHandle (pi.hThread); |
1900 | CloseHandle (pi.hProcess); | |
dfe7f3ac CF |
1901 | |
1902 | if (useshell && shell[0] != '\0') | |
1903 | saw_create = -1; | |
1904 | else | |
1905 | saw_create = 0; | |
1906 | ||
3ee6f623 | 1907 | do_initial_win32_stuff (pi.dwProcessId); |
d3a09475 | 1908 | |
3ee6f623 | 1909 | /* win32_continue (DBG_CONTINUE, -1); */ |
1e37c281 | 1910 | proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0); |
24e60978 SC |
1911 | } |
1912 | ||
1913 | static void | |
3ee6f623 | 1914 | win32_mourn_inferior (void) |
24e60978 | 1915 | { |
3ee6f623 | 1916 | (void) win32_continue (DBG_CONTINUE, -1); |
fa4ba8da | 1917 | i386_cleanup_dregs(); |
3ee6f623 | 1918 | unpush_target (&win32_ops); |
24e60978 SC |
1919 | generic_mourn_inferior (); |
1920 | } | |
1921 | ||
24e60978 SC |
1922 | /* Send a SIGINT to the process group. This acts just like the user typed a |
1923 | ^C on the controlling terminal. */ | |
1924 | ||
b607efe7 | 1925 | static void |
3ee6f623 | 1926 | win32_stop (void) |
24e60978 | 1927 | { |
1ef980b9 | 1928 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 1929 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 1930 | registers_changed (); /* refresh register state */ |
24e60978 SC |
1931 | } |
1932 | ||
3ee6f623 CF |
1933 | static int |
1934 | win32_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, | |
0a65a603 AC |
1935 | int write, struct mem_attrib *mem, |
1936 | struct target_ops *target) | |
24e60978 | 1937 | { |
6f17862b | 1938 | DWORD done = 0; |
24e60978 SC |
1939 | if (write) |
1940 | { | |
29fe111d CF |
1941 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
1942 | len, (DWORD) memaddr)); | |
6f17862b CF |
1943 | if (!WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our, |
1944 | len, &done)) | |
1945 | done = 0; | |
3cee93ac | 1946 | FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len); |
24e60978 SC |
1947 | } |
1948 | else | |
1949 | { | |
29fe111d CF |
1950 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
1951 | len, (DWORD) memaddr)); | |
6f17862b CF |
1952 | if (!ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, |
1953 | len, &done)) | |
1954 | done = 0; | |
24e60978 SC |
1955 | } |
1956 | return done; | |
1957 | } | |
1958 | ||
3ee6f623 CF |
1959 | static void |
1960 | win32_kill_inferior (void) | |
24e60978 | 1961 | { |
3cee93ac CF |
1962 | CHECK (TerminateProcess (current_process_handle, 0)); |
1963 | ||
b5edcb45 ILT |
1964 | for (;;) |
1965 | { | |
3ee6f623 | 1966 | if (!win32_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 1967 | break; |
3cee93ac | 1968 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 1969 | break; |
3cee93ac | 1970 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
1971 | break; |
1972 | } | |
1973 | ||
3cee93ac CF |
1974 | CHECK (CloseHandle (current_process_handle)); |
1975 | ||
1976 | /* this may fail in an attached process so don't check. */ | |
3ade5333 CF |
1977 | if (current_thread && current_thread->h) |
1978 | (void) CloseHandle (current_thread->h); | |
3ee6f623 | 1979 | target_mourn_inferior (); /* or just win32_mourn_inferior? */ |
24e60978 SC |
1980 | } |
1981 | ||
3ee6f623 CF |
1982 | static void |
1983 | win32_resume (ptid_t ptid, int step, enum target_signal sig) | |
24e60978 | 1984 | { |
3cee93ac | 1985 | thread_info *th; |
7393af7c PM |
1986 | DWORD continue_status = DBG_CONTINUE; |
1987 | ||
39f77062 | 1988 | int pid = PIDGET (ptid); |
8a892701 | 1989 | |
7393af7c PM |
1990 | if (sig != TARGET_SIGNAL_0) |
1991 | { | |
1992 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1993 | { | |
1994 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1995 | } | |
1996 | else if (sig == last_sig) | |
1997 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1998 | else | |
1999 | #if 0 | |
2000 | /* This code does not seem to work, because | |
2001 | the kernel does probably not consider changes in the ExceptionRecord | |
dfe7f3ac | 2002 | structure when passing the exception to the inferior. |
7393af7c PM |
2003 | Note that this seems possible in the exception handler itself. */ |
2004 | { | |
2005 | int i; | |
2006 | for (i = 0; xlate[i].them != -1; i++) | |
2007 | if (xlate[i].us == sig) | |
2008 | { | |
2009 | current_event.u.Exception.ExceptionRecord.ExceptionCode = | |
2010 | xlate[i].them; | |
2011 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
2012 | break; | |
2013 | } | |
2014 | if (continue_status == DBG_CONTINUE) | |
2015 | { | |
2016 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
2017 | } | |
2018 | } | |
2019 | #endif | |
dfe7f3ac | 2020 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", |
7393af7c PM |
2021 | last_sig)); |
2022 | } | |
2023 | ||
2024 | last_sig = TARGET_SIGNAL_0; | |
24e60978 | 2025 | |
3ee6f623 | 2026 | DEBUG_EXEC (("gdb: win32_resume (pid=%d, step=%d, sig=%d);\n", |
3cee93ac CF |
2027 | pid, step, sig)); |
2028 | ||
2029 | /* Get context for currently selected thread */ | |
2030 | th = thread_rec (current_event.dwThreadId, FALSE); | |
450005e7 | 2031 | if (th) |
24e60978 | 2032 | { |
450005e7 CF |
2033 | if (step) |
2034 | { | |
2035 | /* Single step by setting t bit */ | |
3ee6f623 | 2036 | win32_fetch_inferior_registers (PS_REGNUM); |
450005e7 CF |
2037 | th->context.EFlags |= FLAG_TRACE_BIT; |
2038 | } | |
24e60978 | 2039 | |
450005e7 CF |
2040 | if (th->context.ContextFlags) |
2041 | { | |
caad7706 CF |
2042 | if (debug_registers_changed) |
2043 | { | |
2044 | th->context.Dr0 = dr[0]; | |
2045 | th->context.Dr1 = dr[1]; | |
2046 | th->context.Dr2 = dr[2]; | |
2047 | th->context.Dr3 = dr[3]; | |
2048 | /* th->context.Dr6 = dr[6]; | |
2049 | FIXME: should we set dr6 also ?? */ | |
2050 | th->context.Dr7 = dr[7]; | |
2051 | } | |
450005e7 CF |
2052 | CHECK (SetThreadContext (th->h, &th->context)); |
2053 | th->context.ContextFlags = 0; | |
2054 | } | |
24e60978 SC |
2055 | } |
2056 | ||
3cee93ac CF |
2057 | /* Allow continuing with the same signal that interrupted us. |
2058 | Otherwise complain. */ | |
24e60978 | 2059 | |
3ee6f623 | 2060 | win32_continue (continue_status, pid); |
24e60978 SC |
2061 | } |
2062 | ||
2063 | static void | |
3ee6f623 | 2064 | win32_prepare_to_store (void) |
24e60978 SC |
2065 | { |
2066 | /* Do nothing, since we can store individual regs */ | |
2067 | } | |
2068 | ||
2069 | static int | |
3ee6f623 | 2070 | win32_can_run (void) |
24e60978 SC |
2071 | { |
2072 | return 1; | |
2073 | } | |
2074 | ||
2075 | static void | |
3ee6f623 | 2076 | win32_close (int x) |
24e60978 | 2077 | { |
3ee6f623 | 2078 | DEBUG_EVENTS (("gdb: win32_close, inferior_ptid=%d\n", |
3bccec63 | 2079 | PIDGET (inferior_ptid))); |
24e60978 | 2080 | } |
1ef980b9 | 2081 | |
3ee6f623 CF |
2082 | /* Convert pid to printable format. */ |
2083 | static char * | |
2084 | cygwin_pid_to_str (ptid_t ptid) | |
24e60978 | 2085 | { |
3ee6f623 CF |
2086 | static char buf[80]; |
2087 | int pid = PIDGET (ptid); | |
2088 | ||
2089 | if ((DWORD) pid == current_event.dwProcessId) | |
2090 | sprintf (buf, "process %d", pid); | |
2091 | else | |
2092 | sprintf (buf, "thread %ld.0x%x", current_event.dwProcessId, pid); | |
2093 | return buf; | |
2094 | } | |
2095 | ||
3cb8e7f6 CF |
2096 | typedef struct |
2097 | { | |
2098 | struct target_ops *target; | |
2099 | bfd_vma addr; | |
2100 | } map_code_section_args; | |
2101 | ||
2102 | static void | |
2103 | map_single_dll_code_section (bfd *abfd, asection *sect, void *obj) | |
2104 | { | |
2105 | int old; | |
2106 | int update_coreops; | |
2107 | struct section_table *new_target_sect_ptr; | |
2108 | ||
2109 | map_code_section_args *args = (map_code_section_args *) obj; | |
2110 | struct target_ops *target = args->target; | |
2111 | if (sect->flags & SEC_CODE) | |
2112 | { | |
2113 | update_coreops = core_ops.to_sections == target->to_sections; | |
2114 | ||
2115 | if (target->to_sections) | |
2116 | { | |
2117 | old = target->to_sections_end - target->to_sections; | |
2118 | target->to_sections = (struct section_table *) | |
2119 | xrealloc ((char *) target->to_sections, | |
2120 | (sizeof (struct section_table)) * (1 + old)); | |
2121 | } | |
2122 | else | |
2123 | { | |
2124 | old = 0; | |
2125 | target->to_sections = (struct section_table *) | |
2126 | xmalloc ((sizeof (struct section_table))); | |
2127 | } | |
2128 | target->to_sections_end = target->to_sections + (1 + old); | |
2129 | ||
2130 | /* Update the to_sections field in the core_ops structure | |
2131 | if needed. */ | |
2132 | if (update_coreops) | |
2133 | { | |
2134 | core_ops.to_sections = target->to_sections; | |
2135 | core_ops.to_sections_end = target->to_sections_end; | |
2136 | } | |
2137 | new_target_sect_ptr = target->to_sections + old; | |
2138 | new_target_sect_ptr->addr = args->addr + bfd_section_vma (abfd, sect); | |
2139 | new_target_sect_ptr->endaddr = args->addr + bfd_section_vma (abfd, sect) + | |
2140 | bfd_section_size (abfd, sect);; | |
2141 | new_target_sect_ptr->the_bfd_section = sect; | |
2142 | new_target_sect_ptr->bfd = abfd; | |
2143 | } | |
2144 | } | |
2145 | ||
2146 | static int | |
2147 | dll_code_sections_add (const char *dll_name, int base_addr, struct target_ops *target) | |
2148 | { | |
2149 | bfd *dll_bfd; | |
2150 | map_code_section_args map_args; | |
2151 | asection *lowest_sect; | |
2152 | char *name; | |
2153 | if (dll_name == NULL || target == NULL) | |
2154 | return 0; | |
2155 | name = xstrdup (dll_name); | |
2156 | dll_bfd = bfd_openr (name, "pei-i386"); | |
2157 | if (dll_bfd == NULL) | |
2158 | return 0; | |
2159 | ||
2160 | if (bfd_check_format (dll_bfd, bfd_object)) | |
2161 | { | |
2162 | lowest_sect = bfd_get_section_by_name (dll_bfd, ".text"); | |
2163 | if (lowest_sect == NULL) | |
2164 | return 0; | |
2165 | map_args.target = target; | |
2166 | map_args.addr = base_addr - bfd_section_vma (dll_bfd, lowest_sect); | |
2167 | ||
2168 | bfd_map_over_sections (dll_bfd, &map_single_dll_code_section, (void *) (&map_args)); | |
2169 | } | |
2170 | ||
2171 | return 1; | |
2172 | } | |
2173 | ||
2174 | static void | |
2175 | core_section_load_dll_symbols (bfd *abfd, asection *sect, void *obj) | |
2176 | { | |
2177 | struct target_ops *target = (struct target_ops *) obj; | |
2178 | ||
2179 | DWORD base_addr; | |
2180 | ||
2181 | int dll_name_size; | |
2182 | struct win32_pstatus *pstatus; | |
2183 | struct so_list *so; | |
2184 | char *dll_name; | |
2185 | char *buf = NULL; | |
2186 | char *p; | |
2187 | struct objfile *objfile; | |
2188 | const char *dll_basename; | |
2189 | ||
2190 | if (strncmp (sect->name, ".module", 7) != 0) | |
2191 | return; | |
2192 | ||
2193 | buf = (char *) xmalloc (bfd_get_section_size (sect) + 1); | |
2194 | if (!buf) | |
2195 | { | |
2196 | printf_unfiltered ("memory allocation failed for %s\n", sect->name); | |
2197 | goto out; | |
2198 | } | |
2199 | if (!bfd_get_section_contents (abfd, sect, buf, 0, bfd_get_section_size (sect))) | |
2200 | goto out; | |
2201 | ||
2202 | pstatus = (struct win32_pstatus *) buf; | |
2203 | ||
2204 | memmove (&base_addr, &(pstatus->data.module_info.base_address), sizeof (base_addr)); | |
2205 | dll_name_size = pstatus->data.module_info.module_name_size; | |
2206 | if (offsetof (struct win32_pstatus, data.module_info.module_name) + dll_name_size > bfd_get_section_size (sect)) | |
2207 | goto out; | |
2208 | ||
2209 | dll_name = pstatus->data.module_info.module_name; | |
2210 | ||
2211 | if (!(dll_basename = strrchr (dll_name, '/'))) | |
2212 | dll_basename = dll_name; | |
2213 | else | |
2214 | dll_basename++; | |
2215 | ||
2216 | ALL_OBJFILES (objfile) | |
2217 | { | |
2218 | char *objfile_basename = strrchr (objfile->name, '/'); | |
2219 | ||
2220 | if (objfile_basename && | |
2221 | strcasecmp (dll_basename, objfile_basename + 1) == 0) | |
2222 | goto out; | |
2223 | } | |
2224 | ||
2225 | base_addr += 0x1000; | |
2226 | dll_name = register_loaded_dll (dll_name, base_addr, 1); | |
2227 | ||
2228 | if (!dll_code_sections_add (dll_name, (DWORD) base_addr, target)) | |
2229 | printf_unfiltered ("%s: Failed to map dll code sections.\n", dll_name); | |
2230 | ||
2231 | out: | |
2232 | if (buf) | |
2233 | xfree (buf); | |
2234 | return; | |
2235 | } | |
2236 | ||
2237 | static struct so_list * | |
2238 | win32_current_sos (void) | |
2239 | { | |
2240 | struct so_list *head = solib_start.next; | |
2241 | win32_clear_solib (); | |
2242 | if (!head && core_bfd) | |
2243 | { | |
2244 | bfd_map_over_sections (core_bfd, &core_section_load_dll_symbols, | |
2245 | &win32_ops); | |
2246 | head = solib_start.next; | |
2247 | win32_clear_solib (); | |
2248 | } | |
2249 | return head; | |
2250 | } | |
2251 | ||
2252 | static void | |
2253 | fetch_elf_core_registers (char *core_reg_sect, | |
2254 | unsigned core_reg_size, | |
2255 | int which, | |
2256 | CORE_ADDR reg_addr) | |
2257 | { | |
2258 | int r; | |
2259 | if (core_reg_size < sizeof (CONTEXT)) | |
2260 | { | |
2261 | error (_("Core file register section too small (%u bytes)."), core_reg_size); | |
2262 | return; | |
2263 | } | |
2264 | for (r = 0; r < NUM_REGS; r++) | |
2265 | regcache_raw_supply (current_regcache, r, core_reg_sect + mappings[r]); | |
2266 | } | |
2267 | ||
3ee6f623 CF |
2268 | static void |
2269 | init_win32_ops (void) | |
2270 | { | |
2271 | win32_ops.to_shortname = "child"; | |
2272 | win32_ops.to_longname = "Win32 child process"; | |
2273 | win32_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2274 | win32_ops.to_open = win32_open; | |
2275 | win32_ops.to_close = win32_close; | |
2276 | win32_ops.to_attach = win32_attach; | |
2277 | win32_ops.to_detach = win32_detach; | |
2278 | win32_ops.to_resume = win32_resume; | |
2279 | win32_ops.to_wait = win32_wait; | |
2280 | win32_ops.to_fetch_registers = win32_fetch_inferior_registers; | |
2281 | win32_ops.to_store_registers = win32_store_inferior_registers; | |
2282 | win32_ops.to_prepare_to_store = win32_prepare_to_store; | |
2283 | win32_ops.deprecated_xfer_memory = win32_xfer_memory; | |
2284 | win32_ops.to_files_info = win32_files_info; | |
2285 | win32_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2286 | win32_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2287 | win32_ops.to_terminal_init = terminal_init_inferior; | |
2288 | win32_ops.to_terminal_inferior = terminal_inferior; | |
2289 | win32_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2290 | win32_ops.to_terminal_ours = terminal_ours; | |
2291 | win32_ops.to_terminal_save_ours = terminal_save_ours; | |
2292 | win32_ops.to_terminal_info = child_terminal_info; | |
2293 | win32_ops.to_kill = win32_kill_inferior; | |
2294 | win32_ops.to_create_inferior = win32_create_inferior; | |
2295 | win32_ops.to_mourn_inferior = win32_mourn_inferior; | |
2296 | win32_ops.to_can_run = win32_can_run; | |
2297 | win32_ops.to_thread_alive = win32_win32_thread_alive; | |
2298 | win32_ops.to_pid_to_str = cygwin_pid_to_str; | |
2299 | win32_ops.to_stop = win32_stop; | |
2300 | win32_ops.to_stratum = process_stratum; | |
2301 | win32_ops.to_has_all_memory = 1; | |
2302 | win32_ops.to_has_memory = 1; | |
2303 | win32_ops.to_has_stack = 1; | |
2304 | win32_ops.to_has_registers = 1; | |
2305 | win32_ops.to_has_execution = 1; | |
2306 | win32_ops.to_magic = OPS_MAGIC; | |
2307 | win32_ops.to_pid_to_exec_file = win32_pid_to_exec_file; | |
2308 | ||
2309 | win32_so_ops.relocate_section_addresses = win32_relocate_section_addresses; | |
2310 | win32_so_ops.free_so = win32_free_so; | |
2311 | win32_so_ops.clear_solib = win32_clear_solib; | |
3cb8e7f6 CF |
2312 | win32_so_ops.solib_create_inferior_hook = win32_solib_create_inferior_hook; |
2313 | win32_so_ops.special_symbol_handling = win32_special_symbol_handling; | |
3ee6f623 CF |
2314 | win32_so_ops.current_sos = win32_current_sos; |
2315 | win32_so_ops.open_symbol_file_object = NULL; | |
2316 | win32_so_ops.in_dynsym_resolve_code = NULL; | |
2317 | ||
2318 | /* FIXME: Don't do this here. *_gdbarch_init() should set so_ops. */ | |
2319 | current_target_so_ops = &win32_so_ops; | |
c719b714 | 2320 | } |
24e60978 SC |
2321 | |
2322 | void | |
a6b6b089 | 2323 | _initialize_win32_nat (void) |
24e60978 | 2324 | { |
fa58ee11 EZ |
2325 | struct cmd_list_element *c; |
2326 | ||
3ee6f623 | 2327 | init_win32_ops (); |
1ef980b9 | 2328 | |
fa58ee11 | 2329 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2330 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2331 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2332 | |
2333 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2334 | ||
5bf193a2 AC |
2335 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2336 | Set use of shell to start subprocess."), _("\ | |
2337 | Show use of shell to start subprocess."), NULL, | |
2338 | NULL, | |
2339 | NULL, /* FIXME: i18n: */ | |
2340 | &setlist, &showlist); | |
2341 | ||
2342 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ | |
2343 | Set creation of new console when creating child process."), _("\ | |
2344 | Show creation of new console when creating child process."), NULL, | |
2345 | NULL, | |
2346 | NULL, /* FIXME: i18n: */ | |
2347 | &setlist, &showlist); | |
2348 | ||
2349 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2350 | Set creation of new group when creating child process."), _("\ | |
2351 | Show creation of new group when creating child process."), NULL, | |
2352 | NULL, | |
2353 | NULL, /* FIXME: i18n: */ | |
2354 | &setlist, &showlist); | |
2355 | ||
2356 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2357 | Set whether to display execution in child process."), _("\ | |
2358 | Show whether to display execution in child process."), NULL, | |
2359 | NULL, | |
2360 | NULL, /* FIXME: i18n: */ | |
2361 | &setlist, &showlist); | |
2362 | ||
2363 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2364 | Set whether to display kernel events in child process."), _("\ | |
2365 | Show whether to display kernel events in child process."), NULL, | |
2366 | NULL, | |
2367 | NULL, /* FIXME: i18n: */ | |
2368 | &setlist, &showlist); | |
2369 | ||
2370 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2371 | Set whether to display memory accesses in child process."), _("\ | |
2372 | Show whether to display memory accesses in child process."), NULL, | |
2373 | NULL, | |
2374 | NULL, /* FIXME: i18n: */ | |
2375 | &setlist, &showlist); | |
2376 | ||
2377 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2378 | &debug_exceptions, _("\ | |
2379 | Set whether to display kernel exceptions in child process."), _("\ | |
2380 | Show whether to display kernel exceptions in child process."), NULL, | |
2381 | NULL, | |
2382 | NULL, /* FIXME: i18n: */ | |
2383 | &setlist, &showlist); | |
1ef980b9 | 2384 | |
1bedd215 | 2385 | add_info ("dll", info_dll_command, _("Status of loaded DLLs.")); |
450005e7 CF |
2386 | add_info_alias ("sharedlibrary", "dll", 1); |
2387 | ||
c1748f97 | 2388 | add_prefix_cmd ("w32", class_info, info_w32_command, |
1bedd215 | 2389 | _("Print information specific to Win32 debugging."), |
baa93fa6 | 2390 | &info_w32_cmdlist, "info w32 ", 0, &infolist); |
c1748f97 PM |
2391 | |
2392 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2393 | _("Display selectors infos."), |
c1748f97 | 2394 | &info_w32_cmdlist); |
3ee6f623 | 2395 | add_target (&win32_ops); |
24e60978 | 2396 | } |
3cee93ac | 2397 | |
fa4ba8da PM |
2398 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2399 | ||
2400 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2401 | Here we just store the address in dr array, the registers will be | |
3ee6f623 | 2402 | actually set up when win32_continue is called. */ |
fa4ba8da PM |
2403 | void |
2404 | cygwin_set_dr (int i, CORE_ADDR addr) | |
2405 | { | |
2406 | if (i < 0 || i > 3) | |
2407 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2408 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
fa4ba8da PM |
2409 | dr[i] = (unsigned) addr; |
2410 | debug_registers_changed = 1; | |
2411 | debug_registers_used = 1; | |
2412 | } | |
2413 | ||
2414 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2415 | register. Here we just store the address in D_REGS, the watchpoint | |
3ee6f623 | 2416 | will be actually set up in win32_wait. */ |
fa4ba8da PM |
2417 | void |
2418 | cygwin_set_dr7 (unsigned val) | |
2419 | { | |
2420 | dr[7] = val; | |
2421 | debug_registers_changed = 1; | |
2422 | debug_registers_used = 1; | |
2423 | } | |
2424 | ||
2425 | /* Get the value of the DR6 debug status register from the inferior. | |
2426 | Here we just return the value stored in dr[6] | |
2427 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
2428 | unsigned | |
2429 | cygwin_get_dr6 (void) | |
2430 | { | |
2431 | return dr[6]; | |
2432 | } | |
2433 | ||
3cee93ac CF |
2434 | /* Determine if the thread referenced by "pid" is alive |
2435 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 | |
2436 | it means that the pid has died. Otherwise it is assumed to be alive. */ | |
2437 | static int | |
3ee6f623 | 2438 | win32_win32_thread_alive (ptid_t ptid) |
3cee93ac | 2439 | { |
39f77062 KB |
2440 | int pid = PIDGET (ptid); |
2441 | ||
3a4b77d8 JM |
2442 | return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
2443 | FALSE : TRUE; | |
3cee93ac CF |
2444 | } |
2445 | ||
8e860359 CF |
2446 | static struct core_fns win32_elf_core_fns = |
2447 | { | |
2448 | bfd_target_elf_flavour, | |
2449 | default_check_format, | |
2450 | default_core_sniffer, | |
2451 | fetch_elf_core_registers, | |
2452 | NULL | |
2453 | }; | |
2454 | ||
2455 | void | |
0613c401 | 2456 | _initialize_core_win32 (void) |
8e860359 | 2457 | { |
00e32a35 | 2458 | deprecated_add_core_fns (&win32_elf_core_fns); |
8e860359 | 2459 | } |
2a3d5645 CF |
2460 | |
2461 | void | |
2462 | _initialize_check_for_gdb_ini (void) | |
2463 | { | |
2464 | char *homedir; | |
2465 | if (inhibit_gdbinit) | |
2466 | return; | |
2467 | ||
2468 | homedir = getenv ("HOME"); | |
2469 | if (homedir) | |
2470 | { | |
2471 | char *p; | |
2472 | char *oldini = (char *) alloca (strlen (homedir) + | |
2473 | sizeof ("/gdb.ini")); | |
2474 | strcpy (oldini, homedir); | |
2475 | p = strchr (oldini, '\0'); | |
2476 | if (p > oldini && p[-1] != '/') | |
2477 | *p++ = '/'; | |
2478 | strcpy (p, "gdb.ini"); | |
2479 | if (access (oldini, 0) == 0) | |
2480 | { | |
2481 | int len = strlen (oldini); | |
2482 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2483 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2484 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2485 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2486 | } |
2487 | } | |
2488 | } |