Commit | Line | Data |
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c906108c | 1 | /* Target-vector operations for controlling win32 child processes, for GDB. |
0a65a603 | 2 | |
281b533b DJ |
3 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
4 | 2005, 2006 | |
2c500098 | 5 | Free Software Foundation, Inc. |
0a65a603 | 6 | |
e6433c28 | 7 | Contributed by Cygnus Solutions, A Red Hat Company. |
c906108c SS |
8 | |
9 | This file is part of GDB. | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without eve nthe implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
23 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
24 | Boston, MA 02110-1301, USA. */ | |
c906108c | 25 | |
dfe7f3ac | 26 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
c906108c SS |
27 | |
28 | /* We assume we're being built with and will be used for cygwin. */ | |
29 | ||
30 | #include "defs.h" | |
31 | #include "frame.h" /* required by inferior.h */ | |
32 | #include "inferior.h" | |
33 | #include "target.h" | |
60250e8b | 34 | #include "exceptions.h" |
c906108c SS |
35 | #include "gdbcore.h" |
36 | #include "command.h" | |
fa58ee11 | 37 | #include "completer.h" |
4e052eda | 38 | #include "regcache.h" |
2a3d5645 | 39 | #include "top.h" |
403d9909 CF |
40 | #include <signal.h> |
41 | #include <sys/types.h> | |
42 | #include <fcntl.h> | |
43 | #include <stdlib.h> | |
44 | #include <windows.h> | |
45 | #include <imagehlp.h> | |
46 | #include <sys/cygwin.h> | |
a244bdca | 47 | #include <signal.h> |
c906108c SS |
48 | |
49 | #include "buildsym.h" | |
50 | #include "symfile.h" | |
51 | #include "objfiles.h" | |
52 | #include "gdb_string.h" | |
53 | #include "gdbthread.h" | |
54 | #include "gdbcmd.h" | |
55 | #include <sys/param.h> | |
c2d11a7d | 56 | #include <unistd.h> |
4646aa9d | 57 | #include "exec.h" |
3ee6f623 | 58 | #include "solist.h" |
3cb8e7f6 | 59 | #include "solib.h" |
c906108c | 60 | |
6c7de422 MK |
61 | #include "i386-tdep.h" |
62 | #include "i387-tdep.h" | |
63 | ||
3ee6f623 CF |
64 | static struct target_ops win32_ops; |
65 | static struct target_so_ops win32_so_ops; | |
66 | ||
a244bdca CF |
67 | /* The starting and ending address of the cygwin1.dll text segment. */ |
68 | static bfd_vma cygwin_load_start; | |
69 | static bfd_vma cygwin_load_end; | |
70 | ||
71 | static int have_saved_context; /* True if we've saved context from a cygwin signal. */ | |
72 | static CONTEXT saved_context; /* Containes the saved context from a cygwin signal. */ | |
73 | ||
7a292a7a SS |
74 | /* If we're not using the old Cygwin header file set, define the |
75 | following which never should have been in the generic Win32 API | |
76 | headers in the first place since they were our own invention... */ | |
77 | #ifndef _GNU_H_WINDOWS_H | |
9d3789f7 | 78 | enum |
8e860359 CF |
79 | { |
80 | FLAG_TRACE_BIT = 0x100, | |
81 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
82 | }; | |
7a292a7a | 83 | #endif |
8e860359 CF |
84 | #include <sys/procfs.h> |
85 | #include <psapi.h> | |
7a292a7a | 86 | |
fa4ba8da PM |
87 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
88 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 89 | |
fa4ba8da | 90 | static unsigned dr[8]; |
87a45c96 CF |
91 | static int debug_registers_changed; |
92 | static int debug_registers_used; | |
97da3b20 | 93 | |
c906108c SS |
94 | /* The string sent by cygwin when it processes a signal. |
95 | FIXME: This should be in a cygwin include file. */ | |
3929abe9 CF |
96 | #ifndef _CYGWIN_SIGNAL_STRING |
97 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
98 | #endif | |
c906108c | 99 | |
29fe111d | 100 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 101 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
102 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
103 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
104 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
c906108c | 105 | |
3ee6f623 CF |
106 | static void win32_stop (void); |
107 | static int win32_win32_thread_alive (ptid_t); | |
108 | static void win32_kill_inferior (void); | |
c906108c | 109 | |
7393af7c PM |
110 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
111 | /* Set if a signal was received from the debugged process */ | |
112 | ||
c906108c SS |
113 | /* Thread information structure used to track information that is |
114 | not available in gdb's thread structure. */ | |
115 | typedef struct thread_info_struct | |
c5aa993b JM |
116 | { |
117 | struct thread_info_struct *next; | |
118 | DWORD id; | |
119 | HANDLE h; | |
120 | char *name; | |
121 | int suspend_count; | |
3ade5333 | 122 | int reload_context; |
c5aa993b | 123 | CONTEXT context; |
c2d11a7d | 124 | STACKFRAME sf; |
8e860359 CF |
125 | } |
126 | thread_info; | |
c2d11a7d | 127 | |
29fe111d | 128 | static thread_info thread_head; |
c906108c | 129 | |
c906108c SS |
130 | /* The process and thread handles for the above context. */ |
131 | ||
132 | static DEBUG_EVENT current_event; /* The current debug event from | |
133 | WaitForDebugEvent */ | |
134 | static HANDLE current_process_handle; /* Currently executing process */ | |
135 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 136 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
c906108c SS |
137 | |
138 | /* Counts of things. */ | |
139 | static int exception_count = 0; | |
140 | static int event_count = 0; | |
dfe7f3ac | 141 | static int saw_create; |
c906108c SS |
142 | |
143 | /* User options. */ | |
144 | static int new_console = 0; | |
c2d11a7d | 145 | static int new_group = 1; |
dfe7f3ac CF |
146 | static int debug_exec = 0; /* show execution */ |
147 | static int debug_events = 0; /* show events from kernel */ | |
148 | static int debug_memory = 0; /* show target memory accesses */ | |
c906108c | 149 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
150 | static int useshell = 0; /* use shell for subprocesses */ |
151 | ||
c906108c SS |
152 | /* This vector maps GDB's idea of a register's number into an address |
153 | in the win32 exception context vector. | |
154 | ||
155 | It also contains the bit mask needed to load the register in question. | |
156 | ||
157 | One day we could read a reg, we could inspect the context we | |
158 | already have loaded, if it doesn't have the bit set that we need, | |
159 | we read that set of registers in using GetThreadContext. If the | |
160 | context already contains what we need, we just unpack it. Then to | |
161 | write a register, first we have to ensure that the context contains | |
162 | the other regs of the group, and then we copy the info in and set | |
163 | out bit. */ | |
164 | ||
165 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) | |
166 | static const int mappings[] = | |
167 | { | |
c5aa993b JM |
168 | context_offset (Eax), |
169 | context_offset (Ecx), | |
170 | context_offset (Edx), | |
171 | context_offset (Ebx), | |
172 | context_offset (Esp), | |
173 | context_offset (Ebp), | |
174 | context_offset (Esi), | |
175 | context_offset (Edi), | |
176 | context_offset (Eip), | |
177 | context_offset (EFlags), | |
178 | context_offset (SegCs), | |
179 | context_offset (SegSs), | |
180 | context_offset (SegDs), | |
181 | context_offset (SegEs), | |
182 | context_offset (SegFs), | |
183 | context_offset (SegGs), | |
184 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
185 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
186 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
187 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
188 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
189 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
190 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
191 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
c2d11a7d JM |
192 | context_offset (FloatSave.ControlWord), |
193 | context_offset (FloatSave.StatusWord), | |
194 | context_offset (FloatSave.TagWord), | |
195 | context_offset (FloatSave.ErrorSelector), | |
196 | context_offset (FloatSave.ErrorOffset), | |
197 | context_offset (FloatSave.DataSelector), | |
198 | context_offset (FloatSave.DataOffset), | |
ed9a39eb | 199 | context_offset (FloatSave.ErrorSelector) |
97da3b20 | 200 | /* XMM0-7 */ , |
441532d7 PM |
201 | context_offset (ExtendedRegisters[10*16]), |
202 | context_offset (ExtendedRegisters[11*16]), | |
203 | context_offset (ExtendedRegisters[12*16]), | |
204 | context_offset (ExtendedRegisters[13*16]), | |
205 | context_offset (ExtendedRegisters[14*16]), | |
206 | context_offset (ExtendedRegisters[15*16]), | |
207 | context_offset (ExtendedRegisters[16*16]), | |
208 | context_offset (ExtendedRegisters[17*16]), | |
209 | /* MXCSR */ | |
210 | context_offset (ExtendedRegisters[24]) | |
c906108c SS |
211 | }; |
212 | ||
ed9a39eb JM |
213 | #undef context_offset |
214 | ||
c906108c SS |
215 | /* This vector maps the target's idea of an exception (extracted |
216 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
217 | ||
218 | struct xlate_exception | |
219 | { | |
220 | int them; | |
221 | enum target_signal us; | |
222 | }; | |
223 | ||
224 | static const struct xlate_exception | |
225 | xlate[] = | |
226 | { | |
227 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
228 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, | |
229 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, | |
230 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
231 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
7393af7c | 232 | {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE}, |
c906108c SS |
233 | {-1, -1}}; |
234 | ||
fa4ba8da PM |
235 | static void |
236 | check (BOOL ok, const char *file, int line) | |
237 | { | |
238 | if (!ok) | |
dfe7f3ac | 239 | printf_filtered ("error return %s:%d was %lu\n", file, line, |
fa4ba8da PM |
240 | GetLastError ()); |
241 | } | |
242 | ||
c906108c SS |
243 | /* Find a thread record given a thread id. |
244 | If get_context then also retrieve the context for this | |
245 | thread. */ | |
246 | static thread_info * | |
247 | thread_rec (DWORD id, int get_context) | |
248 | { | |
249 | thread_info *th; | |
250 | ||
c5aa993b | 251 | for (th = &thread_head; (th = th->next) != NULL;) |
c906108c SS |
252 | if (th->id == id) |
253 | { | |
254 | if (!th->suspend_count && get_context) | |
255 | { | |
8a892701 | 256 | if (get_context > 0 && id != current_event.dwThreadId) |
c906108c SS |
257 | th->suspend_count = SuspendThread (th->h) + 1; |
258 | else if (get_context < 0) | |
259 | th->suspend_count = -1; | |
3ade5333 | 260 | th->reload_context = 1; |
c906108c SS |
261 | } |
262 | return th; | |
263 | } | |
264 | ||
265 | return NULL; | |
266 | } | |
267 | ||
268 | /* Add a thread to the thread list */ | |
269 | static thread_info * | |
3ee6f623 | 270 | win32_add_thread (DWORD id, HANDLE h) |
c906108c SS |
271 | { |
272 | thread_info *th; | |
273 | ||
274 | if ((th = thread_rec (id, FALSE))) | |
275 | return th; | |
276 | ||
3929abe9 | 277 | th = XZALLOC (thread_info); |
c906108c SS |
278 | th->id = id; |
279 | th->h = h; | |
280 | th->next = thread_head.next; | |
281 | thread_head.next = th; | |
39f77062 | 282 | add_thread (pid_to_ptid (id)); |
dfe7f3ac | 283 | /* Set the debug registers for the new thread in they are used. */ |
fa4ba8da PM |
284 | if (debug_registers_used) |
285 | { | |
286 | /* Only change the value of the debug registers. */ | |
287 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
288 | CHECK (GetThreadContext (th->h, &th->context)); | |
289 | th->context.Dr0 = dr[0]; | |
290 | th->context.Dr1 = dr[1]; | |
291 | th->context.Dr2 = dr[2]; | |
292 | th->context.Dr3 = dr[3]; | |
293 | /* th->context.Dr6 = dr[6]; | |
294 | FIXME: should we set dr6 also ?? */ | |
295 | th->context.Dr7 = dr[7]; | |
296 | CHECK (SetThreadContext (th->h, &th->context)); | |
297 | th->context.ContextFlags = 0; | |
298 | } | |
c906108c SS |
299 | return th; |
300 | } | |
301 | ||
302 | /* Clear out any old thread list and reintialize it to a | |
303 | pristine state. */ | |
304 | static void | |
3ee6f623 | 305 | win32_init_thread_list (void) |
c906108c SS |
306 | { |
307 | thread_info *th = &thread_head; | |
308 | ||
3ee6f623 | 309 | DEBUG_EVENTS (("gdb: win32_init_thread_list\n")); |
c906108c SS |
310 | init_thread_list (); |
311 | while (th->next != NULL) | |
312 | { | |
313 | thread_info *here = th->next; | |
314 | th->next = here->next; | |
315 | (void) CloseHandle (here->h); | |
b8c9b27d | 316 | xfree (here); |
c906108c | 317 | } |
059198c1 | 318 | thread_head.next = NULL; |
c906108c SS |
319 | } |
320 | ||
321 | /* Delete a thread from the list of threads */ | |
322 | static void | |
3ee6f623 | 323 | win32_delete_thread (DWORD id) |
c906108c SS |
324 | { |
325 | thread_info *th; | |
326 | ||
327 | if (info_verbose) | |
39f77062 KB |
328 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id))); |
329 | delete_thread (pid_to_ptid (id)); | |
c906108c SS |
330 | |
331 | for (th = &thread_head; | |
332 | th->next != NULL && th->next->id != id; | |
333 | th = th->next) | |
334 | continue; | |
335 | ||
336 | if (th->next != NULL) | |
337 | { | |
338 | thread_info *here = th->next; | |
339 | th->next = here->next; | |
340 | CloseHandle (here->h); | |
b8c9b27d | 341 | xfree (here); |
c906108c SS |
342 | } |
343 | } | |
344 | ||
c906108c | 345 | static void |
3ee6f623 | 346 | do_win32_fetch_inferior_registers (int r) |
c906108c | 347 | { |
c2d11a7d JM |
348 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
349 | long l; | |
6c7de422 | 350 | |
3ade5333 | 351 | if (!current_thread) |
d6dc8049 CF |
352 | return; /* Windows sometimes uses a non-existent thread id in its |
353 | events */ | |
3ade5333 CF |
354 | |
355 | if (current_thread->reload_context) | |
356 | { | |
a244bdca CF |
357 | if (have_saved_context) |
358 | { | |
359 | /* Lie about where the program actually is stopped since cygwin has informed us that | |
360 | we should consider the signal to have occurred at another location which is stored | |
361 | in "saved_context. */ | |
362 | memcpy (¤t_thread->context, &saved_context, __COPY_CONTEXT_SIZE); | |
363 | have_saved_context = 0; | |
364 | } | |
365 | else | |
366 | { | |
367 | thread_info *th = current_thread; | |
368 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
369 | GetThreadContext (th->h, &th->context); | |
370 | /* Copy dr values from that thread. */ | |
371 | dr[0] = th->context.Dr0; | |
372 | dr[1] = th->context.Dr1; | |
373 | dr[2] = th->context.Dr2; | |
374 | dr[3] = th->context.Dr3; | |
375 | dr[6] = th->context.Dr6; | |
376 | dr[7] = th->context.Dr7; | |
377 | } | |
3ade5333 CF |
378 | current_thread->reload_context = 0; |
379 | } | |
380 | ||
6c7de422 MK |
381 | #define I387_ST0_REGNUM I386_ST0_REGNUM |
382 | ||
383 | if (r == I387_FISEG_REGNUM) | |
c2d11a7d | 384 | { |
8e860359 | 385 | l = *((long *) context_offset) & 0xffff; |
23a6d369 | 386 | regcache_raw_supply (current_regcache, r, (char *) &l); |
c2d11a7d | 387 | } |
6c7de422 | 388 | else if (r == I387_FOP_REGNUM) |
c2d11a7d | 389 | { |
8e860359 | 390 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
23a6d369 | 391 | regcache_raw_supply (current_regcache, r, (char *) &l); |
c2d11a7d JM |
392 | } |
393 | else if (r >= 0) | |
23a6d369 | 394 | regcache_raw_supply (current_regcache, r, context_offset); |
c906108c SS |
395 | else |
396 | { | |
397 | for (r = 0; r < NUM_REGS; r++) | |
3ee6f623 | 398 | do_win32_fetch_inferior_registers (r); |
c906108c | 399 | } |
6c7de422 MK |
400 | |
401 | #undef I387_ST0_REGNUM | |
c906108c SS |
402 | } |
403 | ||
404 | static void | |
3ee6f623 | 405 | win32_fetch_inferior_registers (int r) |
c906108c | 406 | { |
39f77062 | 407 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
d6dc8049 CF |
408 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
409 | thread id in its events */ | |
3ade5333 | 410 | if (current_thread) |
3ee6f623 | 411 | do_win32_fetch_inferior_registers (r); |
c906108c SS |
412 | } |
413 | ||
414 | static void | |
3ee6f623 | 415 | do_win32_store_inferior_registers (int r) |
c906108c | 416 | { |
3ade5333 | 417 | if (!current_thread) |
d6dc8049 | 418 | /* Windows sometimes uses a non-existent thread id in its events */; |
3ade5333 | 419 | else if (r >= 0) |
822c9732 AC |
420 | regcache_raw_collect (current_regcache, r, |
421 | ((char *) ¤t_thread->context) + mappings[r]); | |
c906108c SS |
422 | else |
423 | { | |
424 | for (r = 0; r < NUM_REGS; r++) | |
3ee6f623 | 425 | do_win32_store_inferior_registers (r); |
c906108c SS |
426 | } |
427 | } | |
428 | ||
429 | /* Store a new register value into the current thread context */ | |
430 | static void | |
3ee6f623 | 431 | win32_store_inferior_registers (int r) |
c906108c | 432 | { |
39f77062 | 433 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
d6dc8049 CF |
434 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
435 | thread id in its events */ | |
3ade5333 | 436 | if (current_thread) |
3ee6f623 | 437 | do_win32_store_inferior_registers (r); |
c906108c SS |
438 | } |
439 | ||
c2d11a7d JM |
440 | static int psapi_loaded = 0; |
441 | static HMODULE psapi_module_handle = NULL; | |
8e860359 CF |
442 | static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, LPDWORD) = NULL; |
443 | static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD) = NULL; | |
444 | static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD) = NULL; | |
c2d11a7d | 445 | |
3ee6f623 | 446 | static int |
8e860359 | 447 | psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret) |
c2d11a7d JM |
448 | { |
449 | DWORD len; | |
450 | MODULEINFO mi; | |
451 | int i; | |
8e860359 CF |
452 | HMODULE dh_buf[1]; |
453 | HMODULE *DllHandle = dh_buf; | |
c2d11a7d JM |
454 | DWORD cbNeeded; |
455 | BOOL ok; | |
456 | ||
457 | if (!psapi_loaded || | |
8e860359 CF |
458 | psapi_EnumProcessModules == NULL || |
459 | psapi_GetModuleInformation == NULL || | |
460 | psapi_GetModuleFileNameExA == NULL) | |
c2d11a7d | 461 | { |
8e860359 CF |
462 | if (psapi_loaded) |
463 | goto failed; | |
c2d11a7d JM |
464 | psapi_loaded = 1; |
465 | psapi_module_handle = LoadLibrary ("psapi.dll"); | |
466 | if (!psapi_module_handle) | |
8e860359 CF |
467 | { |
468 | /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */ | |
469 | goto failed; | |
470 | } | |
471 | psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules"); | |
c2d11a7d JM |
472 | psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation"); |
473 | psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, | |
8e860359 CF |
474 | "GetModuleFileNameExA"); |
475 | if (psapi_EnumProcessModules == NULL || | |
476 | psapi_GetModuleInformation == NULL || | |
477 | psapi_GetModuleFileNameExA == NULL) | |
c2d11a7d JM |
478 | goto failed; |
479 | } | |
480 | ||
481 | cbNeeded = 0; | |
482 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
483 | DllHandle, |
484 | sizeof (HMODULE), | |
485 | &cbNeeded); | |
c2d11a7d JM |
486 | |
487 | if (!ok || !cbNeeded) | |
488 | goto failed; | |
489 | ||
8e860359 | 490 | DllHandle = (HMODULE *) alloca (cbNeeded); |
c2d11a7d JM |
491 | if (!DllHandle) |
492 | goto failed; | |
493 | ||
494 | ok = (*psapi_EnumProcessModules) (current_process_handle, | |
8e860359 CF |
495 | DllHandle, |
496 | cbNeeded, | |
497 | &cbNeeded); | |
c2d11a7d JM |
498 | if (!ok) |
499 | goto failed; | |
500 | ||
29fe111d | 501 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
c2d11a7d JM |
502 | { |
503 | if (!(*psapi_GetModuleInformation) (current_process_handle, | |
8e860359 CF |
504 | DllHandle[i], |
505 | &mi, | |
506 | sizeof (mi))) | |
8a3fe4f8 | 507 | error (_("Can't get module info")); |
c2d11a7d JM |
508 | |
509 | len = (*psapi_GetModuleFileNameExA) (current_process_handle, | |
8e860359 CF |
510 | DllHandle[i], |
511 | dll_name_ret, | |
512 | MAX_PATH); | |
c2d11a7d | 513 | if (len == 0) |
8a3fe4f8 | 514 | error (_("Error getting dll name: %u."), (unsigned) GetLastError ()); |
c2d11a7d JM |
515 | |
516 | if ((DWORD) (mi.lpBaseOfDll) == BaseAddress) | |
517 | return 1; | |
518 | } | |
519 | ||
520 | failed: | |
521 | dll_name_ret[0] = '\0'; | |
522 | return 0; | |
523 | } | |
524 | ||
450005e7 CF |
525 | /* Encapsulate the information required in a call to |
526 | symbol_file_add_args */ | |
8a892701 CF |
527 | struct safe_symbol_file_add_args |
528 | { | |
529 | char *name; | |
530 | int from_tty; | |
531 | struct section_addr_info *addrs; | |
532 | int mainline; | |
533 | int flags; | |
7c5c87c0 | 534 | struct ui_file *err, *out; |
8a892701 CF |
535 | struct objfile *ret; |
536 | }; | |
537 | ||
02e423b9 | 538 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 539 | struct lm_info |
02e423b9 | 540 | { |
02e423b9 | 541 | DWORD load_addr; |
3ee6f623 CF |
542 | }; |
543 | ||
544 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 545 | |
450005e7 CF |
546 | /* Call symbol_file_add with stderr redirected. We don't care if there |
547 | are errors. */ | |
8a892701 CF |
548 | static int |
549 | safe_symbol_file_add_stub (void *argv) | |
550 | { | |
3ee6f623 CF |
551 | #define p ((struct safe_symbol_file_add_args *) argv) |
552 | struct so_list *so = &solib_start; | |
02e423b9 | 553 | |
8a892701 CF |
554 | p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags); |
555 | return !!p->ret; | |
556 | #undef p | |
557 | } | |
558 | ||
450005e7 | 559 | /* Restore gdb's stderr after calling symbol_file_add */ |
8a892701 | 560 | static void |
7c5c87c0 | 561 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 562 | { |
8e860359 | 563 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 564 | gdb_flush (gdb_stderr); |
7c5c87c0 | 565 | gdb_flush (gdb_stdout); |
d3ff4a77 | 566 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 567 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 568 | gdb_stderr = sp->err; |
9d3789f7 | 569 | gdb_stdout = sp->out; |
8e860359 | 570 | #undef sp |
8a892701 CF |
571 | } |
572 | ||
450005e7 | 573 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
574 | static struct objfile * |
575 | safe_symbol_file_add (char *name, int from_tty, | |
576 | struct section_addr_info *addrs, | |
577 | int mainline, int flags) | |
8a892701 CF |
578 | { |
579 | struct safe_symbol_file_add_args p; | |
580 | struct cleanup *cleanup; | |
581 | ||
7c5c87c0 | 582 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 583 | |
7c5c87c0 CF |
584 | p.err = gdb_stderr; |
585 | p.out = gdb_stdout; | |
450005e7 | 586 | gdb_flush (gdb_stderr); |
7c5c87c0 | 587 | gdb_flush (gdb_stdout); |
d3ff4a77 | 588 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 589 | gdb_stdout = ui_file_new (); |
8a892701 CF |
590 | p.name = name; |
591 | p.from_tty = from_tty; | |
592 | p.addrs = addrs; | |
593 | p.mainline = mainline; | |
594 | p.flags = flags; | |
595 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
596 | ||
597 | do_cleanups (cleanup); | |
598 | return p.ret; | |
599 | } | |
600 | ||
3cb8e7f6 CF |
601 | /* Get the loaded address of all sections, given that .text was loaded |
602 | at text_load. Assumes that all sections are subject to the same | |
603 | relocation offset. Returns NULL if problems occur or if the | |
604 | sections were not relocated. */ | |
605 | ||
606 | static struct section_addr_info * | |
607 | get_relocated_section_addrs (bfd *abfd, CORE_ADDR text_load) | |
608 | { | |
609 | struct section_addr_info *result = NULL; | |
610 | int section_count = bfd_count_sections (abfd); | |
611 | asection *text_section = bfd_get_section_by_name (abfd, ".text"); | |
612 | CORE_ADDR text_vma; | |
613 | ||
614 | if (!text_section) | |
615 | { | |
616 | /* Couldn't get the .text section. Weird. */ | |
617 | } | |
3cb8e7f6 CF |
618 | else if (text_load == (text_vma = bfd_get_section_vma (abfd, text_section))) |
619 | { | |
620 | /* DLL wasn't relocated. */ | |
621 | } | |
3cb8e7f6 CF |
622 | else |
623 | { | |
624 | /* Figure out all sections' loaded addresses. The offset here is | |
625 | such that taking a bfd_get_section_vma() result and adding | |
626 | offset will give the real load address of the section. */ | |
627 | ||
628 | CORE_ADDR offset = text_load - text_vma; | |
629 | ||
630 | struct section_table *table_start = NULL; | |
631 | struct section_table *table_end = NULL; | |
632 | struct section_table *iter = NULL; | |
633 | ||
634 | build_section_table (abfd, &table_start, &table_end); | |
635 | ||
636 | for (iter = table_start; iter < table_end; ++iter) | |
637 | { | |
638 | /* Relocated addresses. */ | |
639 | iter->addr += offset; | |
640 | iter->endaddr += offset; | |
641 | } | |
642 | ||
643 | result = build_section_addr_info_from_section_table (table_start, | |
644 | table_end); | |
645 | ||
646 | xfree (table_start); | |
647 | } | |
648 | ||
649 | return result; | |
650 | } | |
651 | ||
652 | /* Add DLL symbol information. */ | |
653 | static void | |
654 | solib_symbols_add (struct so_list *so, CORE_ADDR load_addr) | |
655 | { | |
656 | struct section_addr_info *addrs = NULL; | |
657 | static struct objfile *result = NULL; | |
658 | char *name = so->so_name; | |
659 | bfd *abfd = NULL; | |
a244bdca | 660 | char *p; |
3cb8e7f6 CF |
661 | |
662 | /* The symbols in a dll are offset by 0x1000, which is the | |
663 | the offset from 0 of the first byte in an image - because | |
664 | of the file header and the section alignment. */ | |
665 | ||
666 | if (!name || !name[0]) | |
667 | return; | |
668 | ||
669 | abfd = bfd_openr (name, "pei-i386"); | |
670 | ||
671 | if (!abfd) | |
672 | { | |
673 | /* pei failed - try pe */ | |
674 | abfd = bfd_openr (name, "pe-i386"); | |
675 | } | |
676 | ||
677 | if (abfd) | |
678 | { | |
679 | if (bfd_check_format (abfd, bfd_object)) | |
680 | addrs = get_relocated_section_addrs (abfd, load_addr); | |
3cb8e7f6 CF |
681 | } |
682 | ||
683 | if (addrs) | |
684 | { | |
685 | result = safe_symbol_file_add (name, 0, addrs, 0, OBJF_SHARED); | |
686 | free_section_addr_info (addrs); | |
687 | } | |
688 | else | |
689 | { | |
690 | /* Fallback on handling just the .text section. */ | |
691 | struct cleanup *my_cleanups; | |
692 | ||
693 | addrs = alloc_section_addr_info (1); | |
694 | my_cleanups = make_cleanup (xfree, addrs); | |
695 | addrs->other[0].name = ".text"; | |
696 | addrs->other[0].addr = load_addr; | |
697 | ||
698 | result = safe_symbol_file_add (name, 0, addrs, 0, OBJF_SHARED); | |
699 | do_cleanups (my_cleanups); | |
700 | } | |
701 | ||
a244bdca CF |
702 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); |
703 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
704 | { | |
705 | asection *text = bfd_get_section_by_name (abfd, ".text"); | |
706 | cygwin_load_start = bfd_section_vma (abfd, text); | |
707 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); | |
708 | } | |
709 | ||
710 | bfd_close (abfd); | |
711 | ||
3cb8e7f6 CF |
712 | so->symbols_loaded = !!result; |
713 | return; | |
714 | } | |
715 | ||
3cb8e7f6 CF |
716 | static char * |
717 | register_loaded_dll (const char *name, DWORD load_addr, int readsyms) | |
8e860359 | 718 | { |
3ee6f623 | 719 | struct so_list *so; |
3f8ad85b CF |
720 | char buf[MAX_PATH + 1]; |
721 | char cwd[MAX_PATH + 1]; | |
722 | char *p; | |
723 | WIN32_FIND_DATA w32_fd; | |
724 | HANDLE h = FindFirstFile(name, &w32_fd); | |
5633f842 | 725 | MEMORY_BASIC_INFORMATION m; |
3f8ad85b CF |
726 | size_t len; |
727 | ||
6badb179 CF |
728 | if (h == INVALID_HANDLE_VALUE) |
729 | strcpy (buf, name); | |
730 | else | |
3f8ad85b | 731 | { |
c914e0cc CF |
732 | FindClose (h); |
733 | strcpy (buf, name); | |
734 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
735 | { | |
736 | p = strrchr (buf, '\\'); | |
737 | if (p) | |
738 | p[1] = '\0'; | |
739 | SetCurrentDirectory (buf); | |
740 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
741 | SetCurrentDirectory (cwd); | |
742 | } | |
3f8ad85b CF |
743 | } |
744 | ||
3ee6f623 CF |
745 | if (strcasecmp (buf, "ntdll.dll") == 0) |
746 | { | |
747 | GetSystemDirectory (buf, sizeof (buf)); | |
748 | strcat (buf, "\\ntdll.dll"); | |
749 | } | |
3929abe9 | 750 | so = XZALLOC (struct so_list); |
3ee6f623 CF |
751 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); |
752 | so->lm_info->load_addr = load_addr; | |
3cb8e7f6 CF |
753 | cygwin_conv_to_posix_path (buf, so->so_name); |
754 | strcpy (so->so_original_name, so->so_name); | |
8e860359 CF |
755 | |
756 | solib_end->next = so; | |
757 | solib_end = so; | |
3cb8e7f6 | 758 | len = strlen (so->so_name); |
3cb8e7f6 CF |
759 | if (readsyms) |
760 | solib_symbols_add (so, (CORE_ADDR) load_addr); | |
a244bdca | 761 | |
3cb8e7f6 | 762 | return so->so_name; |
8e860359 CF |
763 | } |
764 | ||
3ee6f623 | 765 | static char * |
dfe7f3ac CF |
766 | get_image_name (HANDLE h, void *address, int unicode) |
767 | { | |
768 | static char buf[(2 * MAX_PATH) + 1]; | |
769 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
770 | char *address_ptr; | |
771 | int len = 0; | |
772 | char b[2]; | |
773 | DWORD done; | |
774 | ||
775 | /* Attempt to read the name of the dll that was detected. | |
776 | This is documented to work only when actively debugging | |
777 | a program. It will not work for attached processes. */ | |
778 | if (address == NULL) | |
779 | return NULL; | |
780 | ||
dfe7f3ac CF |
781 | /* See if we could read the address of a string, and that the |
782 | address isn't null. */ | |
9f476a01 | 783 | if (!ReadProcessMemory (h, address, &address_ptr, sizeof (address_ptr), &done) |
6f17862b | 784 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
785 | return NULL; |
786 | ||
787 | /* Find the length of the string */ | |
6f17862b CF |
788 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
789 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
790 | continue; | |
dfe7f3ac CF |
791 | |
792 | if (!unicode) | |
793 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
794 | else | |
795 | { | |
796 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
797 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
798 | &done); | |
799 | ||
800 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
801 | } | |
802 | ||
803 | return buf; | |
804 | } | |
805 | ||
c906108c SS |
806 | /* Wait for child to do something. Return pid of child, or -1 in case |
807 | of error; store status through argument pointer OURSTATUS. */ | |
c906108c | 808 | static int |
0a65a603 | 809 | handle_load_dll (void *dummy) |
c906108c | 810 | { |
c5aa993b | 811 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
c906108c | 812 | char dll_buf[MAX_PATH + 1]; |
450005e7 | 813 | char *dll_name = NULL; |
c906108c | 814 | |
c5aa993b | 815 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
c906108c | 816 | |
c2d11a7d | 817 | if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf)) |
8e860359 | 818 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
c906108c | 819 | |
c2d11a7d | 820 | dll_name = dll_buf; |
c906108c | 821 | |
dfe7f3ac CF |
822 | if (*dll_name == '\0') |
823 | dll_name = get_image_name (current_process_handle, event->lpImageName, event->fUnicode); | |
c906108c SS |
824 | if (!dll_name) |
825 | return 1; | |
826 | ||
3cb8e7f6 | 827 | register_loaded_dll (dll_name, (DWORD) event->lpBaseOfDll + 0x1000, auto_solib_add); |
450005e7 CF |
828 | |
829 | return 1; | |
830 | } | |
831 | ||
3ee6f623 CF |
832 | static void |
833 | win32_free_so (struct so_list *so) | |
834 | { | |
3ee6f623 CF |
835 | if (so->lm_info) |
836 | xfree (so->lm_info); | |
837 | } | |
838 | ||
3ee6f623 CF |
839 | static void |
840 | win32_relocate_section_addresses (struct so_list *so, | |
841 | struct section_table *sec) | |
842 | { | |
843 | /* FIXME */ | |
844 | return; | |
845 | } | |
846 | ||
3cb8e7f6 CF |
847 | static void |
848 | win32_solib_create_inferior_hook (void) | |
849 | { | |
850 | solib_add (NULL, 0, NULL, auto_solib_add); | |
851 | return; | |
852 | } | |
853 | ||
d3ff4a77 | 854 | static int |
0a65a603 | 855 | handle_unload_dll (void *dummy) |
d3ff4a77 CF |
856 | { |
857 | DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll + 0x1000; | |
3ee6f623 | 858 | struct so_list *so; |
d3ff4a77 CF |
859 | |
860 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 861 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 862 | { |
3ee6f623 | 863 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
864 | so->next = sodel->next; |
865 | if (!so->next) | |
866 | solib_end = so; | |
3ee6f623 | 867 | free_so (sodel); |
3929abe9 | 868 | solib_add (NULL, 0, NULL, auto_solib_add); |
d3ff4a77 CF |
869 | return 1; |
870 | } | |
3929abe9 | 871 | |
8a3fe4f8 | 872 | error (_("Error: dll starting at 0x%lx not found."), (DWORD) lpBaseOfDll); |
d3ff4a77 CF |
873 | |
874 | return 0; | |
875 | } | |
876 | ||
450005e7 | 877 | /* Clear list of loaded DLLs. */ |
3ee6f623 CF |
878 | static void |
879 | win32_clear_solib (void) | |
450005e7 | 880 | { |
450005e7 CF |
881 | solib_start.next = NULL; |
882 | solib_end = &solib_start; | |
450005e7 | 883 | } |
295732ea | 884 | |
3cb8e7f6 CF |
885 | static void |
886 | win32_special_symbol_handling (void) | |
887 | { | |
888 | return; | |
889 | } | |
890 | ||
450005e7 CF |
891 | /* Load DLL symbol info. */ |
892 | void | |
7470a420 | 893 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 894 | { |
8e860359 | 895 | int n; |
450005e7 | 896 | dont_repeat (); |
8e860359 | 897 | |
450005e7 | 898 | if (args == NULL) |
8a3fe4f8 | 899 | error (_("dll-symbols requires a file name")); |
450005e7 | 900 | |
8e860359 CF |
901 | n = strlen (args); |
902 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
903 | { | |
904 | char *newargs = (char *) alloca (n + 4 + 1); | |
905 | strcpy (newargs, args); | |
906 | strcat (newargs, ".dll"); | |
907 | args = newargs; | |
908 | } | |
909 | ||
7470a420 | 910 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 911 | } |
450005e7 | 912 | |
c906108c SS |
913 | /* Handle DEBUG_STRING output from child process. |
914 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
915 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
916 | static int | |
917 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
918 | { | |
a244bdca CF |
919 | char *s = NULL; |
920 | int retval = 0; | |
c906108c SS |
921 | |
922 | if (!target_read_string | |
c5aa993b | 923 | ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0) |
c906108c | 924 | || !s || !*s) |
a244bdca CF |
925 | /* nothing to do */; |
926 | else if (strncmp (s, _CYGWIN_SIGNAL_STRING, sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0) | |
c906108c | 927 | { |
ed9a39eb | 928 | if (strncmp (s, "cYg", 3) != 0) |
8a3fe4f8 | 929 | warning (("%s"), s); |
c906108c | 930 | } |
ed9a39eb | 931 | else |
c906108c | 932 | { |
a244bdca CF |
933 | /* Got a cygwin signal marker. A cygwin signal is followed by the signal number |
934 | itself and then optionally followed by the thread id and address to saved context | |
935 | within the DLL. If these are supplied, then the given thread is assumed to have | |
936 | issued the signal and the context from the thread is assumed to be stored at the | |
937 | given address in the inferior. Tell gdb to treat this like a real signal. */ | |
c906108c | 938 | char *p; |
3929abe9 | 939 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
a244bdca | 940 | int gotasig = target_signal_from_host (sig); |
7a292a7a SS |
941 | ourstatus->value.sig = gotasig; |
942 | if (gotasig) | |
a244bdca CF |
943 | { |
944 | LPCVOID x; | |
945 | DWORD n; | |
946 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
947 | retval = strtoul (p, &p, 0); | |
948 | if (!retval) | |
949 | retval = main_thread_id; | |
950 | else if ((x = (LPCVOID) strtoul (p, &p, 0)) | |
951 | && ReadProcessMemory (current_process_handle, x, | |
952 | &saved_context, __COPY_CONTEXT_SIZE, &n) | |
953 | && n == __COPY_CONTEXT_SIZE) | |
954 | have_saved_context = 1; | |
955 | current_event.dwThreadId = retval; | |
956 | } | |
c906108c SS |
957 | } |
958 | ||
a244bdca CF |
959 | if (s) |
960 | xfree (s); | |
961 | return retval; | |
c906108c SS |
962 | } |
963 | ||
c1748f97 PM |
964 | static int |
965 | display_selector (HANDLE thread, DWORD sel) | |
966 | { | |
967 | LDT_ENTRY info; | |
968 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
969 | { | |
970 | int base, limit; | |
971 | printf_filtered ("0x%03lx: ", sel); | |
972 | if (!info.HighWord.Bits.Pres) | |
baa93fa6 CF |
973 | { |
974 | puts_filtered ("Segment not present\n"); | |
975 | return 0; | |
976 | } | |
c1748f97 PM |
977 | base = (info.HighWord.Bits.BaseHi << 24) + |
978 | (info.HighWord.Bits.BaseMid << 16) | |
979 | + info.BaseLow; | |
980 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
981 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 982 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
983 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
984 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 985 | puts_filtered(" 32-bit "); |
c1748f97 | 986 | else |
baa93fa6 | 987 | puts_filtered(" 16-bit "); |
c1748f97 PM |
988 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
989 | { | |
990 | case 0: | |
baa93fa6 CF |
991 | puts_filtered ("Data (Read-Only, Exp-up"); |
992 | break; | |
c1748f97 | 993 | case 1: |
baa93fa6 CF |
994 | puts_filtered ("Data (Read/Write, Exp-up"); |
995 | break; | |
c1748f97 | 996 | case 2: |
baa93fa6 CF |
997 | puts_filtered ("Unused segment ("); |
998 | break; | |
c1748f97 | 999 | case 3: |
baa93fa6 CF |
1000 | puts_filtered ("Data (Read/Write, Exp-down"); |
1001 | break; | |
c1748f97 | 1002 | case 4: |
baa93fa6 CF |
1003 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1004 | break; | |
c1748f97 | 1005 | case 5: |
baa93fa6 | 1006 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1007 | break; |
1008 | case 6: | |
baa93fa6 | 1009 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1010 | break; |
1011 | case 7: | |
baa93fa6 | 1012 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1013 | break; |
1014 | default: | |
1015 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
1016 | } | |
1017 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1018 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1019 | puts_filtered (")\n"); |
1020 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1021 | puts_filtered("System selector "); | |
1022 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
1023 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 1024 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1025 | else |
1026 | puts_filtered ("Byte granular.\n"); | |
1027 | return 1; | |
1028 | } | |
1029 | else | |
1030 | { | |
1031 | printf_filtered ("Invalid selector 0x%lx.\n",sel); | |
1032 | return 0; | |
1033 | } | |
1034 | } | |
1035 | ||
1036 | static void | |
1037 | display_selectors (char * args, int from_tty) | |
1038 | { | |
1039 | if (!current_thread) | |
1040 | { | |
1041 | puts_filtered ("Impossible to display selectors now.\n"); | |
1042 | return; | |
1043 | } | |
1044 | if (!args) | |
1045 | { | |
1046 | ||
1047 | puts_filtered ("Selector $cs\n"); | |
1048 | display_selector (current_thread->h, | |
baa93fa6 | 1049 | current_thread->context.SegCs); |
c1748f97 PM |
1050 | puts_filtered ("Selector $ds\n"); |
1051 | display_selector (current_thread->h, | |
baa93fa6 | 1052 | current_thread->context.SegDs); |
c1748f97 PM |
1053 | puts_filtered ("Selector $es\n"); |
1054 | display_selector (current_thread->h, | |
baa93fa6 | 1055 | current_thread->context.SegEs); |
c1748f97 PM |
1056 | puts_filtered ("Selector $ss\n"); |
1057 | display_selector (current_thread->h, | |
baa93fa6 | 1058 | current_thread->context.SegSs); |
c1748f97 PM |
1059 | puts_filtered ("Selector $fs\n"); |
1060 | display_selector (current_thread->h, | |
1061 | current_thread->context.SegFs); | |
1062 | puts_filtered ("Selector $gs\n"); | |
1063 | display_selector (current_thread->h, | |
baa93fa6 | 1064 | current_thread->context.SegGs); |
c1748f97 PM |
1065 | } |
1066 | else | |
1067 | { | |
1068 | int sel; | |
1069 | sel = parse_and_eval_long (args); | |
1070 | printf_filtered ("Selector \"%s\"\n",args); | |
1071 | display_selector (current_thread->h, sel); | |
1072 | } | |
1073 | } | |
1074 | ||
1075 | static struct cmd_list_element *info_w32_cmdlist = NULL; | |
1076 | ||
1077 | static void | |
1078 | info_w32_command (char *args, int from_tty) | |
1079 | { | |
1080 | help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout); | |
1081 | } | |
1082 | ||
1083 | ||
7393af7c | 1084 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
4e52d31c | 1085 | printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \ |
7393af7c PM |
1086 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress) |
1087 | ||
c906108c | 1088 | static int |
450005e7 | 1089 | handle_exception (struct target_waitstatus *ourstatus) |
c906108c | 1090 | { |
c906108c | 1091 | thread_info *th; |
29fe111d | 1092 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
c906108c | 1093 | |
29fe111d | 1094 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1095 | |
c906108c SS |
1096 | /* Record the context of the current thread */ |
1097 | th = thread_rec (current_event.dwThreadId, -1); | |
1098 | ||
29fe111d | 1099 | switch (code) |
c906108c SS |
1100 | { |
1101 | case EXCEPTION_ACCESS_VIOLATION: | |
7393af7c PM |
1102 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
1103 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
8da8e0b3 | 1104 | { |
a244bdca CF |
1105 | /* See if the access violation happened within the cygwin DLL itself. Cygwin uses |
1106 | a kind of exception handling to deal with passed-in invalid addresses. gdb | |
1107 | should not treat these as real SEGVs since they will be silently handled by | |
1108 | cygwin. A real SEGV will (theoretically) be caught by cygwin later in the process | |
1109 | and will be sent as a cygwin-specific-signal. So, ignore SEGVs if they show up | |
1110 | within the text segment of the DLL itself. */ | |
8da8e0b3 | 1111 | char *fn; |
a244bdca CF |
1112 | bfd_vma addr = (bfd_vma) current_event.u.Exception.ExceptionRecord.ExceptionAddress; |
1113 | if ((addr >= cygwin_load_start && addr < cygwin_load_end) | |
1114 | || (find_pc_partial_function (addr, &fn, NULL, NULL) | |
1115 | && strncmp (fn, "KERNEL32!IsBad", strlen ("KERNEL32!IsBad")) == 0)) | |
8da8e0b3 CF |
1116 | return 0; |
1117 | } | |
7393af7c PM |
1118 | break; |
1119 | case STATUS_STACK_OVERFLOW: | |
1120 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
c906108c | 1121 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
1122 | break; |
1123 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1124 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
1125 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1126 | break; | |
1127 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1128 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
1129 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1130 | break; | |
1131 | case STATUS_FLOAT_INEXACT_RESULT: | |
1132 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
1133 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1134 | break; | |
1135 | case STATUS_FLOAT_INVALID_OPERATION: | |
1136 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1137 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1138 | break; | |
1139 | case STATUS_FLOAT_OVERFLOW: | |
1140 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1141 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1142 | break; | |
1143 | case STATUS_FLOAT_STACK_CHECK: | |
1144 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1145 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
c906108c | 1146 | break; |
0d06e24b | 1147 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1148 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1149 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1150 | break; | |
0d06e24b | 1151 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1152 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1153 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1154 | break; | |
0d06e24b | 1155 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1156 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
0d06e24b | 1157 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
0d06e24b | 1158 | break; |
7393af7c PM |
1159 | case STATUS_INTEGER_OVERFLOW: |
1160 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1161 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
c906108c SS |
1162 | break; |
1163 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1164 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
c906108c SS |
1165 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1166 | break; | |
1167 | case DBG_CONTROL_C: | |
7393af7c | 1168 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
c906108c | 1169 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1170 | break; |
1171 | case DBG_CONTROL_BREAK: | |
7393af7c | 1172 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1173 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
c906108c SS |
1174 | break; |
1175 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1176 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
c906108c SS |
1177 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1178 | break; | |
8227c82d | 1179 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1180 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1181 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1182 | break; | |
1183 | case EXCEPTION_PRIV_INSTRUCTION: | |
1184 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1185 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1186 | break; | |
1187 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1188 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1189 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1190 | break; | |
c906108c | 1191 | default: |
a244bdca | 1192 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1193 | if (current_event.u.Exception.dwFirstChance) |
a244bdca | 1194 | return -1; |
29fe111d | 1195 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n", |
c5aa993b | 1196 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
8e860359 | 1197 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress); |
c906108c SS |
1198 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1199 | break; | |
1200 | } | |
1201 | exception_count++; | |
7393af7c | 1202 | last_sig = ourstatus->value.sig; |
c906108c SS |
1203 | return 1; |
1204 | } | |
1205 | ||
1206 | /* Resume all artificially suspended threads if we are continuing | |
1207 | execution */ | |
1208 | static BOOL | |
3ee6f623 | 1209 | win32_continue (DWORD continue_status, int id) |
c906108c SS |
1210 | { |
1211 | int i; | |
1212 | thread_info *th; | |
1213 | BOOL res; | |
1214 | ||
7393af7c PM |
1215 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, %s);\n", |
1216 | current_event.dwProcessId, current_event.dwThreadId, | |
dfe7f3ac | 1217 | continue_status == DBG_CONTINUE ? |
7393af7c | 1218 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
7a292a7a SS |
1219 | res = ContinueDebugEvent (current_event.dwProcessId, |
1220 | current_event.dwThreadId, | |
1221 | continue_status); | |
1222 | if (res) | |
c5aa993b | 1223 | for (th = &thread_head; (th = th->next) != NULL;) |
29fe111d | 1224 | if (((id == -1) || (id == (int) th->id)) && th->suspend_count) |
c906108c | 1225 | { |
fa4ba8da | 1226 | |
c906108c SS |
1227 | for (i = 0; i < th->suspend_count; i++) |
1228 | (void) ResumeThread (th->h); | |
1229 | th->suspend_count = 0; | |
fa4ba8da PM |
1230 | if (debug_registers_changed) |
1231 | { | |
3ade5333 | 1232 | /* Only change the value of the debug registers */ |
fa4ba8da PM |
1233 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; |
1234 | th->context.Dr0 = dr[0]; | |
1235 | th->context.Dr1 = dr[1]; | |
1236 | th->context.Dr2 = dr[2]; | |
1237 | th->context.Dr3 = dr[3]; | |
1238 | /* th->context.Dr6 = dr[6]; | |
dfe7f3ac | 1239 | FIXME: should we set dr6 also ?? */ |
fa4ba8da PM |
1240 | th->context.Dr7 = dr[7]; |
1241 | CHECK (SetThreadContext (th->h, &th->context)); | |
1242 | th->context.ContextFlags = 0; | |
1243 | } | |
c906108c SS |
1244 | } |
1245 | ||
fa4ba8da | 1246 | debug_registers_changed = 0; |
c906108c SS |
1247 | return res; |
1248 | } | |
1249 | ||
d6dc8049 CF |
1250 | /* Called in pathological case where Windows fails to send a |
1251 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1252 | static DWORD |
5439edaa | 1253 | fake_create_process (void) |
3ade5333 CF |
1254 | { |
1255 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1256 | current_event.dwProcessId); | |
1257 | main_thread_id = current_event.dwThreadId; | |
3ee6f623 | 1258 | current_thread = win32_add_thread (main_thread_id, |
3ade5333 CF |
1259 | current_event.u.CreateThread.hThread); |
1260 | return main_thread_id; | |
1261 | } | |
1262 | ||
a244bdca CF |
1263 | static void |
1264 | win32_resume (ptid_t ptid, int step, enum target_signal sig) | |
1265 | { | |
1266 | thread_info *th; | |
1267 | DWORD continue_status = DBG_CONTINUE; | |
1268 | ||
1269 | int pid = PIDGET (ptid); | |
1270 | ||
1271 | if (sig != TARGET_SIGNAL_0) | |
1272 | { | |
1273 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1274 | { | |
1275 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1276 | } | |
1277 | else if (sig == last_sig) | |
1278 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1279 | else | |
1280 | #if 0 | |
1281 | /* This code does not seem to work, because | |
1282 | the kernel does probably not consider changes in the ExceptionRecord | |
1283 | structure when passing the exception to the inferior. | |
1284 | Note that this seems possible in the exception handler itself. */ | |
1285 | { | |
1286 | int i; | |
1287 | for (i = 0; xlate[i].them != -1; i++) | |
1288 | if (xlate[i].us == sig) | |
1289 | { | |
1290 | current_event.u.Exception.ExceptionRecord.ExceptionCode = | |
1291 | xlate[i].them; | |
1292 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1293 | break; | |
1294 | } | |
1295 | if (continue_status == DBG_CONTINUE) | |
1296 | { | |
1297 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1298 | } | |
1299 | } | |
1300 | #endif | |
1301 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", | |
1302 | last_sig)); | |
1303 | } | |
1304 | ||
1305 | last_sig = TARGET_SIGNAL_0; | |
1306 | ||
1307 | DEBUG_EXEC (("gdb: win32_resume (pid=%d, step=%d, sig=%d);\n", | |
1308 | pid, step, sig)); | |
1309 | ||
1310 | /* Get context for currently selected thread */ | |
1311 | th = thread_rec (current_event.dwThreadId, FALSE); | |
1312 | if (th) | |
1313 | { | |
1314 | if (step) | |
1315 | { | |
1316 | /* Single step by setting t bit */ | |
1317 | win32_fetch_inferior_registers (PS_REGNUM); | |
1318 | th->context.EFlags |= FLAG_TRACE_BIT; | |
1319 | } | |
1320 | ||
1321 | if (th->context.ContextFlags) | |
1322 | { | |
1323 | if (debug_registers_changed) | |
1324 | { | |
1325 | th->context.Dr0 = dr[0]; | |
1326 | th->context.Dr1 = dr[1]; | |
1327 | th->context.Dr2 = dr[2]; | |
1328 | th->context.Dr3 = dr[3]; | |
1329 | /* th->context.Dr6 = dr[6]; | |
1330 | FIXME: should we set dr6 also ?? */ | |
1331 | th->context.Dr7 = dr[7]; | |
1332 | } | |
1333 | CHECK (SetThreadContext (th->h, &th->context)); | |
1334 | th->context.ContextFlags = 0; | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | /* Allow continuing with the same signal that interrupted us. | |
1339 | Otherwise complain. */ | |
1340 | ||
1341 | win32_continue (continue_status, pid); | |
1342 | } | |
1343 | ||
8a892701 CF |
1344 | /* Get the next event from the child. Return 1 if the event requires |
1345 | handling by WFI (or whatever). | |
1346 | */ | |
c2d11a7d | 1347 | static int |
3ee6f623 | 1348 | get_win32_debug_event (int pid, struct target_waitstatus *ourstatus) |
c2d11a7d JM |
1349 | { |
1350 | BOOL debug_event; | |
8a892701 | 1351 | DWORD continue_status, event_code; |
87a45c96 | 1352 | thread_info *th; |
8a892701 | 1353 | static thread_info dummy_thread_info; |
450005e7 | 1354 | int retval = 0; |
a244bdca | 1355 | ptid_t ptid = {-1}; |
c2d11a7d | 1356 | |
7393af7c | 1357 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1358 | |
8a892701 | 1359 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1360 | goto out; |
c2d11a7d JM |
1361 | |
1362 | event_count++; | |
1363 | continue_status = DBG_CONTINUE; | |
c2d11a7d | 1364 | |
8a892701 | 1365 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1366 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1367 | th = NULL; |
a244bdca | 1368 | have_saved_context = 0; |
8a892701 CF |
1369 | |
1370 | switch (event_code) | |
c2d11a7d JM |
1371 | { |
1372 | case CREATE_THREAD_DEBUG_EVENT: | |
1373 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1374 | (unsigned) current_event.dwProcessId, |
1375 | (unsigned) current_event.dwThreadId, | |
1376 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1377 | if (saw_create != 1) |
3ade5333 CF |
1378 | { |
1379 | if (!saw_create && attach_flag) | |
1380 | { | |
d6dc8049 CF |
1381 | /* Kludge around a Windows bug where first event is a create |
1382 | thread event. Caused when attached process does not have | |
1383 | a main thread. */ | |
3ade5333 CF |
1384 | retval = ourstatus->value.related_pid = fake_create_process (); |
1385 | saw_create++; | |
1386 | } | |
1387 | break; | |
1388 | } | |
c2d11a7d | 1389 | /* Record the existence of this thread */ |
3ee6f623 | 1390 | th = win32_add_thread (current_event.dwThreadId, |
8a892701 | 1391 | current_event.u.CreateThread.hThread); |
c2d11a7d JM |
1392 | if (info_verbose) |
1393 | printf_unfiltered ("[New %s]\n", | |
39f77062 KB |
1394 | target_pid_to_str ( |
1395 | pid_to_ptid (current_event.dwThreadId))); | |
450005e7 | 1396 | retval = current_event.dwThreadId; |
c2d11a7d JM |
1397 | break; |
1398 | ||
1399 | case EXIT_THREAD_DEBUG_EVENT: | |
1400 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1401 | (unsigned) current_event.dwProcessId, |
1402 | (unsigned) current_event.dwThreadId, | |
1403 | "EXIT_THREAD_DEBUG_EVENT")); | |
87a45c96 CF |
1404 | if (current_event.dwThreadId != main_thread_id) |
1405 | { | |
3ee6f623 | 1406 | win32_delete_thread (current_event.dwThreadId); |
87a45c96 CF |
1407 | th = &dummy_thread_info; |
1408 | } | |
c2d11a7d JM |
1409 | break; |
1410 | ||
1411 | case CREATE_PROCESS_DEBUG_EVENT: | |
1412 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1413 | (unsigned) current_event.dwProcessId, |
1414 | (unsigned) current_event.dwThreadId, | |
1415 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1416 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac CF |
1417 | if (++saw_create != 1) |
1418 | { | |
1419 | CloseHandle (current_event.u.CreateProcessInfo.hProcess); | |
1420 | break; | |
1421 | } | |
c2d11a7d | 1422 | |
dfe7f3ac | 1423 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1424 | if (main_thread_id) |
3ee6f623 | 1425 | win32_delete_thread (main_thread_id); |
9d3789f7 | 1426 | main_thread_id = current_event.dwThreadId; |
c2d11a7d | 1427 | /* Add the main thread */ |
3ee6f623 | 1428 | th = win32_add_thread (main_thread_id, |
8a892701 | 1429 | current_event.u.CreateProcessInfo.hThread); |
9d3789f7 | 1430 | retval = ourstatus->value.related_pid = current_event.dwThreadId; |
c2d11a7d JM |
1431 | break; |
1432 | ||
1433 | case EXIT_PROCESS_DEBUG_EVENT: | |
1434 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1435 | (unsigned) current_event.dwProcessId, |
1436 | (unsigned) current_event.dwThreadId, | |
1437 | "EXIT_PROCESS_DEBUG_EVENT")); | |
dfe7f3ac CF |
1438 | if (saw_create != 1) |
1439 | break; | |
c2d11a7d JM |
1440 | ourstatus->kind = TARGET_WAITKIND_EXITED; |
1441 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1442 | CloseHandle (current_process_handle); | |
9d3789f7 | 1443 | retval = main_thread_id; |
8a892701 | 1444 | break; |
c2d11a7d JM |
1445 | |
1446 | case LOAD_DLL_DEBUG_EVENT: | |
1447 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1448 | (unsigned) current_event.dwProcessId, |
1449 | (unsigned) current_event.dwThreadId, | |
1450 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1451 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1452 | if (saw_create != 1) |
1453 | break; | |
8a892701 | 1454 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
c2d11a7d | 1455 | registers_changed (); /* mark all regs invalid */ |
450005e7 CF |
1456 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1457 | ourstatus->value.integer = 0; | |
9d3789f7 | 1458 | retval = main_thread_id; |
5633f842 | 1459 | re_enable_breakpoints_in_shlibs (); |
c2d11a7d JM |
1460 | break; |
1461 | ||
1462 | case UNLOAD_DLL_DEBUG_EVENT: | |
1463 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1464 | (unsigned) current_event.dwProcessId, |
1465 | (unsigned) current_event.dwThreadId, | |
1466 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1467 | if (saw_create != 1) |
1468 | break; | |
d3ff4a77 CF |
1469 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
1470 | registers_changed (); /* mark all regs invalid */ | |
1471 | /* ourstatus->kind = TARGET_WAITKIND_UNLOADED; | |
3bccec63 | 1472 | does not exist yet. */ |
d3ff4a77 | 1473 | break; |
c2d11a7d JM |
1474 | |
1475 | case EXCEPTION_DEBUG_EVENT: | |
1476 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1477 | (unsigned) current_event.dwProcessId, |
1478 | (unsigned) current_event.dwThreadId, | |
1479 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1480 | if (saw_create != 1) |
1481 | break; | |
a244bdca CF |
1482 | switch (handle_exception (ourstatus)) |
1483 | { | |
1484 | case 0: | |
1485 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1486 | break; | |
1487 | case 1: | |
1488 | retval = current_event.dwThreadId; | |
1489 | break; | |
1490 | case -1: | |
1491 | last_sig = 1; | |
1492 | continue_status = -1; | |
1493 | break; | |
1494 | } | |
c2d11a7d JM |
1495 | break; |
1496 | ||
8a892701 | 1497 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
c2d11a7d | 1498 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", |
8a892701 CF |
1499 | (unsigned) current_event.dwProcessId, |
1500 | (unsigned) current_event.dwThreadId, | |
1501 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1502 | if (saw_create != 1) |
1503 | break; | |
a244bdca | 1504 | retval = handle_output_debug_string (ourstatus); |
c2d11a7d | 1505 | break; |
9d3789f7 | 1506 | |
c2d11a7d | 1507 | default: |
dfe7f3ac CF |
1508 | if (saw_create != 1) |
1509 | break; | |
29fe111d CF |
1510 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1511 | (DWORD) current_event.dwProcessId, | |
1512 | (DWORD) current_event.dwThreadId); | |
1513 | printf_unfiltered (" unknown event code %ld\n", | |
c2d11a7d JM |
1514 | current_event.dwDebugEventCode); |
1515 | break; | |
1516 | } | |
1517 | ||
dfe7f3ac | 1518 | if (!retval || saw_create != 1) |
a244bdca CF |
1519 | { |
1520 | if (continue_status == -1) | |
1521 | win32_resume (ptid, 0, 1); | |
1522 | else | |
1523 | CHECK (win32_continue (continue_status, -1)); | |
1524 | } | |
450005e7 | 1525 | else |
9d3789f7 | 1526 | { |
39f77062 | 1527 | inferior_ptid = pid_to_ptid (retval); |
3ade5333 | 1528 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1529 | } |
c2d11a7d JM |
1530 | |
1531 | out: | |
450005e7 | 1532 | return retval; |
c2d11a7d JM |
1533 | } |
1534 | ||
c2d11a7d | 1535 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1536 | static ptid_t |
3ee6f623 | 1537 | win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus) |
c906108c | 1538 | { |
39f77062 KB |
1539 | int pid = PIDGET (ptid); |
1540 | ||
c906108c SS |
1541 | /* We loop when we get a non-standard exception rather than return |
1542 | with a SPURIOUS because resume can try and step or modify things, | |
1543 | which needs a current_thread->h. But some of these exceptions mark | |
1544 | the birth or death of threads, which mean that the current thread | |
1545 | isn't necessarily what you think it is. */ | |
1546 | ||
1547 | while (1) | |
450005e7 | 1548 | { |
3ee6f623 | 1549 | int retval = get_win32_debug_event (pid, ourstatus); |
450005e7 | 1550 | if (retval) |
39f77062 | 1551 | return pid_to_ptid (retval); |
450005e7 CF |
1552 | else |
1553 | { | |
1554 | int detach = 0; | |
c906108c | 1555 | |
98bbd631 AC |
1556 | if (deprecated_ui_loop_hook != NULL) |
1557 | detach = deprecated_ui_loop_hook (0); | |
7a292a7a | 1558 | |
450005e7 | 1559 | if (detach) |
3ee6f623 | 1560 | win32_kill_inferior (); |
450005e7 CF |
1561 | } |
1562 | } | |
c906108c SS |
1563 | } |
1564 | ||
9d3789f7 | 1565 | static void |
3ee6f623 | 1566 | do_initial_win32_stuff (DWORD pid) |
9d3789f7 CF |
1567 | { |
1568 | extern int stop_after_trap; | |
fa4ba8da | 1569 | int i; |
9d3789f7 | 1570 | |
7393af7c | 1571 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1572 | event_count = 0; |
1573 | exception_count = 0; | |
fa4ba8da | 1574 | debug_registers_changed = 0; |
dfe7f3ac | 1575 | debug_registers_used = 0; |
fa4ba8da PM |
1576 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1577 | dr[i] = 0; | |
9d3789f7 CF |
1578 | current_event.dwProcessId = pid; |
1579 | memset (¤t_event, 0, sizeof (current_event)); | |
3ee6f623 | 1580 | push_target (&win32_ops); |
5633f842 | 1581 | disable_breakpoints_in_shlibs (1); |
3ee6f623 | 1582 | win32_clear_solib (); |
9d3789f7 CF |
1583 | clear_proceed_status (); |
1584 | init_wait_for_inferior (); | |
1585 | ||
1586 | target_terminal_init (); | |
1587 | target_terminal_inferior (); | |
1588 | ||
1589 | while (1) | |
1590 | { | |
1591 | stop_after_trap = 1; | |
1592 | wait_for_inferior (); | |
1593 | if (stop_signal != TARGET_SIGNAL_TRAP) | |
1594 | resume (0, stop_signal); | |
1595 | else | |
1596 | break; | |
1597 | } | |
1598 | stop_after_trap = 0; | |
1599 | return; | |
1600 | } | |
1601 | ||
02cc9f49 CV |
1602 | /* Since Windows XP, detaching from a process is supported by Windows. |
1603 | The following code tries loading the appropriate functions dynamically. | |
1604 | If loading these functions succeeds use them to actually detach from | |
1605 | the inferior process, otherwise behave as usual, pretending that | |
1606 | detach has worked. */ | |
1607 | static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL); | |
1608 | static BOOL WINAPI (*DebugActiveProcessStop)(DWORD); | |
1609 | ||
1610 | static int | |
5ae5f592 | 1611 | has_detach_ability (void) |
02cc9f49 CV |
1612 | { |
1613 | static HMODULE kernel32 = NULL; | |
1614 | ||
1615 | if (!kernel32) | |
1616 | kernel32 = LoadLibrary ("kernel32.dll"); | |
1617 | if (kernel32) | |
1618 | { | |
1619 | if (!DebugSetProcessKillOnExit) | |
1620 | DebugSetProcessKillOnExit = GetProcAddress (kernel32, | |
1621 | "DebugSetProcessKillOnExit"); | |
1622 | if (!DebugActiveProcessStop) | |
1623 | DebugActiveProcessStop = GetProcAddress (kernel32, | |
1624 | "DebugActiveProcessStop"); | |
1625 | if (DebugSetProcessKillOnExit && DebugActiveProcessStop) | |
1626 | return 1; | |
1627 | } | |
1628 | return 0; | |
1629 | } | |
c906108c | 1630 | |
616a9dc4 CV |
1631 | /* Try to set or remove a user privilege to the current process. Return -1 |
1632 | if that fails, the previous setting of that privilege otherwise. | |
1633 | ||
1634 | This code is copied from the Cygwin source code and rearranged to allow | |
1635 | dynamically loading of the needed symbols from advapi32 which is only | |
1636 | available on NT/2K/XP. */ | |
1637 | static int | |
1638 | set_process_privilege (const char *privilege, BOOL enable) | |
1639 | { | |
1640 | static HMODULE advapi32 = NULL; | |
1641 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
1642 | static BOOL WINAPI (*LookupPrivilegeValue)(LPCSTR, LPCSTR, PLUID); | |
1643 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, | |
1644 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
1645 | ||
1646 | HANDLE token_hdl = NULL; | |
1647 | LUID restore_priv; | |
1648 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1649 | int ret = -1; | |
1650 | DWORD size; | |
1651 | ||
1652 | if (GetVersion () >= 0x80000000) /* No security availbale on 9x/Me */ | |
1653 | return 0; | |
1654 | ||
1655 | if (!advapi32) | |
1656 | { | |
1657 | if (!(advapi32 = LoadLibrary ("advapi32.dll"))) | |
1658 | goto out; | |
1659 | if (!OpenProcessToken) | |
1660 | OpenProcessToken = GetProcAddress (advapi32, "OpenProcessToken"); | |
1661 | if (!LookupPrivilegeValue) | |
1662 | LookupPrivilegeValue = GetProcAddress (advapi32, | |
1663 | "LookupPrivilegeValueA"); | |
1664 | if (!AdjustTokenPrivileges) | |
1665 | AdjustTokenPrivileges = GetProcAddress (advapi32, | |
1666 | "AdjustTokenPrivileges"); | |
1667 | if (!OpenProcessToken || !LookupPrivilegeValue || !AdjustTokenPrivileges) | |
295732ea | 1668 | { |
616a9dc4 CV |
1669 | advapi32 = NULL; |
1670 | goto out; | |
1671 | } | |
1672 | } | |
295732ea | 1673 | |
616a9dc4 CV |
1674 | if (!OpenProcessToken (GetCurrentProcess (), |
1675 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1676 | &token_hdl)) | |
1677 | goto out; | |
1678 | ||
1679 | if (!LookupPrivilegeValue (NULL, privilege, &restore_priv)) | |
1680 | goto out; | |
1681 | ||
1682 | new_priv.PrivilegeCount = 1; | |
1683 | new_priv.Privileges[0].Luid = restore_priv; | |
1684 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1685 | ||
1686 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1687 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1688 | goto out; |
1689 | #if 0 | |
1690 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1691 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
3ee6f623 | 1692 | win32_attach(). */ |
616a9dc4 CV |
1693 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
1694 | be enabled. GetLastError () returns an correct error code, though. */ | |
1695 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) | |
1696 | goto out; | |
1697 | #endif | |
1698 | ||
1699 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1700 | ||
1701 | out: | |
1702 | if (token_hdl) | |
1703 | CloseHandle (token_hdl); | |
1704 | ||
1705 | return ret; | |
1706 | } | |
1707 | ||
02cc9f49 | 1708 | /* Attach to process PID, then initialize for debugging it. */ |
c906108c | 1709 | static void |
3ee6f623 | 1710 | win32_attach (char *args, int from_tty) |
c906108c SS |
1711 | { |
1712 | BOOL ok; | |
559e75c0 | 1713 | DWORD pid; |
c906108c SS |
1714 | |
1715 | if (!args) | |
e2e0b3e5 | 1716 | error_no_arg (_("process-id to attach")); |
c906108c | 1717 | |
616a9dc4 CV |
1718 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1719 | { | |
1720 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
1721 | printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n"); | |
1722 | } | |
1723 | ||
baa93fa6 CF |
1724 | pid = strtoul (args, 0, 0); /* Windows pid */ |
1725 | ||
3ee6f623 | 1726 | win32_init_thread_list (); |
9d3789f7 | 1727 | ok = DebugActiveProcess (pid); |
91a175b3 | 1728 | saw_create = 0; |
c906108c SS |
1729 | |
1730 | if (!ok) | |
baa93fa6 CF |
1731 | { |
1732 | /* Try fall back to Cygwin pid */ | |
1733 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); | |
1734 | ||
1735 | if (pid > 0) | |
1736 | ok = DebugActiveProcess (pid); | |
1737 | ||
1738 | if (!ok) | |
8a3fe4f8 | 1739 | error (_("Can't attach to process.")); |
baa93fa6 | 1740 | } |
c906108c | 1741 | |
02cc9f49 | 1742 | if (has_detach_ability ()) |
3ade5333 CF |
1743 | DebugSetProcessKillOnExit (FALSE); |
1744 | ||
1745 | attach_flag = 1; | |
02cc9f49 | 1746 | |
c906108c SS |
1747 | if (from_tty) |
1748 | { | |
1749 | char *exec_file = (char *) get_exec_file (0); | |
1750 | ||
1751 | if (exec_file) | |
1752 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1753 | target_pid_to_str (pid_to_ptid (pid))); |
c906108c SS |
1754 | else |
1755 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1756 | target_pid_to_str (pid_to_ptid (pid))); |
c906108c SS |
1757 | |
1758 | gdb_flush (gdb_stdout); | |
1759 | } | |
1760 | ||
3ee6f623 | 1761 | do_initial_win32_stuff (pid); |
9d3789f7 | 1762 | target_terminal_ours (); |
c906108c SS |
1763 | } |
1764 | ||
1765 | static void | |
3ee6f623 | 1766 | win32_detach (char *args, int from_tty) |
c906108c | 1767 | { |
02cc9f49 CV |
1768 | int detached = 1; |
1769 | ||
1770 | if (has_detach_ability ()) | |
1771 | { | |
1772 | delete_command (NULL, 0); | |
3ee6f623 | 1773 | win32_continue (DBG_CONTINUE, -1); |
02cc9f49 | 1774 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
3bccec63 | 1775 | { |
8a3fe4f8 | 1776 | error (_("Can't detach process %lu (error %lu)"), |
02cc9f49 CV |
1777 | current_event.dwProcessId, GetLastError ()); |
1778 | detached = 0; | |
3bccec63 | 1779 | } |
02cc9f49 CV |
1780 | DebugSetProcessKillOnExit (FALSE); |
1781 | } | |
1782 | if (detached && from_tty) | |
c906108c SS |
1783 | { |
1784 | char *exec_file = get_exec_file (0); | |
1785 | if (exec_file == 0) | |
1786 | exec_file = ""; | |
02cc9f49 CV |
1787 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1788 | current_event.dwProcessId); | |
c906108c SS |
1789 | gdb_flush (gdb_stdout); |
1790 | } | |
39f77062 | 1791 | inferior_ptid = null_ptid; |
3ee6f623 | 1792 | unpush_target (&win32_ops); |
c906108c SS |
1793 | } |
1794 | ||
3ee6f623 CF |
1795 | static char * |
1796 | win32_pid_to_exec_file (int pid) | |
47216e51 CV |
1797 | { |
1798 | /* Try to find the process path using the Cygwin internal process list | |
1799 | pid isn't a valid pid, unfortunately. Use current_event.dwProcessId | |
1800 | instead. */ | |
1801 | /* TODO: Also find native Windows processes using CW_GETPINFO_FULL. */ | |
1802 | ||
1803 | static char path[MAX_PATH + 1]; | |
1804 | char *path_ptr = NULL; | |
1805 | int cpid; | |
1806 | struct external_pinfo *pinfo; | |
1807 | ||
1808 | cygwin_internal (CW_LOCK_PINFO, 1000); | |
1809 | for (cpid = 0; | |
1810 | (pinfo = (struct external_pinfo *) | |
3cb8e7f6 | 1811 | cygwin_internal (CW_GETPINFO, cpid | CW_NEXTPID)); |
47216e51 CV |
1812 | cpid = pinfo->pid) |
1813 | { | |
1814 | if (pinfo->dwProcessId == current_event.dwProcessId) /* Got it */ | |
1815 | { | |
3cb8e7f6 CF |
1816 | cygwin_conv_to_full_posix_path (pinfo->progname, path); |
1817 | path_ptr = path; | |
1818 | break; | |
47216e51 CV |
1819 | } |
1820 | } | |
1821 | cygwin_internal (CW_UNLOCK_PINFO); | |
3cb8e7f6 | 1822 | return path_ptr; |
47216e51 CV |
1823 | } |
1824 | ||
c906108c SS |
1825 | /* Print status information about what we're accessing. */ |
1826 | ||
1827 | static void | |
3ee6f623 | 1828 | win32_files_info (struct target_ops *ignore) |
c906108c SS |
1829 | { |
1830 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
39f77062 | 1831 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid)); |
c906108c SS |
1832 | } |
1833 | ||
c906108c | 1834 | static void |
3ee6f623 | 1835 | win32_open (char *arg, int from_tty) |
c906108c | 1836 | { |
8a3fe4f8 | 1837 | error (_("Use the \"run\" command to start a Unix child process.")); |
c906108c SS |
1838 | } |
1839 | ||
8efc5725 CF |
1840 | /* Function called by qsort to sort environment strings. */ |
1841 | static int | |
1842 | env_sort (const void *a, const void *b) | |
1843 | { | |
1844 | const char **p = (const char **) a; | |
1845 | const char **q = (const char **) b; | |
1846 | return strcasecmp (*p, *q); | |
1847 | } | |
1848 | ||
39f77062 | 1849 | /* Start an inferior win32 child process and sets inferior_ptid to its pid. |
c906108c SS |
1850 | EXEC_FILE is the file to run. |
1851 | ALLARGS is a string containing the arguments to the program. | |
1852 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1853 | ||
1854 | static void | |
8efc5725 | 1855 | win32_create_inferior (char *exec_file, char *allargs, char **in_env, |
c27cda74 | 1856 | int from_tty) |
c906108c | 1857 | { |
c906108c SS |
1858 | char *winenv; |
1859 | char *temp; | |
c5aa993b | 1860 | int envlen; |
c906108c | 1861 | int i; |
c906108c SS |
1862 | STARTUPINFO si; |
1863 | PROCESS_INFORMATION pi; | |
c906108c SS |
1864 | BOOL ret; |
1865 | DWORD flags; | |
1866 | char *args; | |
dfe7f3ac CF |
1867 | char real_path[MAXPATHLEN]; |
1868 | char *toexec; | |
349b409f CF |
1869 | char shell[MAX_PATH + 1]; /* Path to shell */ |
1870 | const char *sh; | |
2becadee CF |
1871 | int tty; |
1872 | int ostdin, ostdout, ostderr; | |
3cb3b8df | 1873 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
c906108c SS |
1874 | |
1875 | if (!exec_file) | |
8a3fe4f8 | 1876 | error (_("No executable specified, use `target exec'.")); |
c906108c SS |
1877 | |
1878 | memset (&si, 0, sizeof (si)); | |
1879 | si.cb = sizeof (si); | |
1880 | ||
349b409f | 1881 | if (!useshell) |
dfe7f3ac CF |
1882 | { |
1883 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1884 | cygwin_conv_to_win32_path (exec_file, real_path); | |
1885 | toexec = real_path; | |
1886 | } | |
1887 | else | |
1888 | { | |
349b409f CF |
1889 | char *newallargs; |
1890 | sh = getenv ("SHELL"); | |
1891 | if (!sh) | |
1892 | sh = "/bin/sh"; | |
1893 | cygwin_conv_to_win32_path (sh, shell); | |
1894 | newallargs = alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
1895 | + strlen (allargs) + 2); | |
dfe7f3ac CF |
1896 | sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs); |
1897 | allargs = newallargs; | |
1898 | toexec = shell; | |
1899 | flags = DEBUG_PROCESS; | |
1900 | } | |
c906108c | 1901 | |
eeb25b8a PM |
1902 | if (new_group) |
1903 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1904 | ||
1905 | if (new_console) | |
1906 | flags |= CREATE_NEW_CONSOLE; | |
1907 | ||
3ade5333 CF |
1908 | attach_flag = 0; |
1909 | ||
dfe7f3ac CF |
1910 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
1911 | strcpy (args, toexec); | |
c906108c SS |
1912 | strcat (args, " "); |
1913 | strcat (args, allargs); | |
1914 | ||
1915 | /* Prepare the environment vars for CreateProcess. */ | |
1916 | { | |
349b409f | 1917 | /* This code used to assume all env vars were file names and would |
c906108c SS |
1918 | translate them all to win32 style. That obviously doesn't work in the |
1919 | general case. The current rule is that we only translate PATH. | |
1920 | We need to handle PATH because we're about to call CreateProcess and | |
1921 | it uses PATH to find DLL's. Fortunately PATH has a well-defined value | |
1922 | in both posix and win32 environments. cygwin.dll will change it back | |
1923 | to posix style if necessary. */ | |
1924 | ||
1925 | static const char *conv_path_names[] = | |
c5aa993b JM |
1926 | { |
1927 | "PATH=", | |
1928 | 0 | |
1929 | }; | |
c906108c SS |
1930 | |
1931 | /* CreateProcess takes the environment list as a null terminated set of | |
1932 | strings (i.e. two nulls terminate the list). */ | |
1933 | ||
1934 | /* Get total size for env strings. */ | |
8efc5725 | 1935 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) |
c906108c SS |
1936 | { |
1937 | int j, len; | |
1938 | ||
1939 | for (j = 0; conv_path_names[j]; j++) | |
1940 | { | |
1941 | len = strlen (conv_path_names[j]); | |
8efc5725 | 1942 | if (strncmp (conv_path_names[j], in_env[i], len) == 0) |
c906108c | 1943 | { |
8efc5725 | 1944 | if (cygwin_posix_path_list_p (in_env[i] + len)) |
c906108c | 1945 | envlen += len |
8efc5725 | 1946 | + cygwin_posix_to_win32_path_list_buf_size (in_env[i] + len); |
c906108c | 1947 | else |
8efc5725 | 1948 | envlen += strlen (in_env[i]) + 1; |
c906108c SS |
1949 | break; |
1950 | } | |
1951 | } | |
1952 | if (conv_path_names[j] == NULL) | |
8efc5725 | 1953 | envlen += strlen (in_env[i]) + 1; |
c906108c SS |
1954 | } |
1955 | ||
8efc5725 CF |
1956 | size_t envsize = sizeof (in_env[0]) * (i + 1); |
1957 | char **env = (char **) alloca (envsize); | |
1958 | memcpy (env, in_env, envsize); | |
1959 | /* Windows programs expect the environment block to be sorted. */ | |
1960 | qsort (env, i, sizeof (char *), env_sort); | |
1961 | ||
c906108c SS |
1962 | winenv = alloca (envlen + 1); |
1963 | ||
1964 | /* Copy env strings into new buffer. */ | |
1965 | for (temp = winenv, i = 0; env[i] && *env[i]; i++) | |
1966 | { | |
1967 | int j, len; | |
1968 | ||
1969 | for (j = 0; conv_path_names[j]; j++) | |
1970 | { | |
1971 | len = strlen (conv_path_names[j]); | |
1972 | if (strncmp (conv_path_names[j], env[i], len) == 0) | |
1973 | { | |
29fe111d | 1974 | if (cygwin_posix_path_list_p (env[i] + len)) |
c906108c SS |
1975 | { |
1976 | memcpy (temp, env[i], len); | |
29fe111d | 1977 | cygwin_posix_to_win32_path_list (env[i] + len, temp + len); |
c906108c SS |
1978 | } |
1979 | else | |
1980 | strcpy (temp, env[i]); | |
1981 | break; | |
1982 | } | |
1983 | } | |
1984 | if (conv_path_names[j] == NULL) | |
1985 | strcpy (temp, env[i]); | |
1986 | ||
1987 | temp += strlen (temp) + 1; | |
1988 | } | |
1989 | ||
1990 | /* Final nil string to terminate new env. */ | |
1991 | *temp = 0; | |
1992 | } | |
1993 | ||
2becadee CF |
1994 | if (!inferior_io_terminal) |
1995 | tty = ostdin = ostdout = ostderr = -1; | |
1996 | else | |
1997 | { | |
1998 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
1999 | if (tty < 0) | |
2000 | { | |
2001 | print_sys_errmsg (inferior_io_terminal, errno); | |
2002 | ostdin = ostdout = ostderr = -1; | |
2003 | } | |
2004 | else | |
2005 | { | |
2006 | ostdin = dup (0); | |
2007 | ostdout = dup (1); | |
2008 | ostderr = dup (2); | |
2009 | dup2 (tty, 0); | |
2010 | dup2 (tty, 1); | |
2011 | dup2 (tty, 2); | |
2012 | } | |
2013 | } | |
2014 | ||
3ee6f623 | 2015 | win32_init_thread_list (); |
c906108c | 2016 | ret = CreateProcess (0, |
c5aa993b | 2017 | args, /* command line */ |
c906108c SS |
2018 | NULL, /* Security */ |
2019 | NULL, /* thread */ | |
2020 | TRUE, /* inherit handles */ | |
2021 | flags, /* start flags */ | |
2022 | winenv, | |
2023 | NULL, /* current directory */ | |
2024 | &si, | |
2025 | &pi); | |
2becadee CF |
2026 | if (tty >= 0) |
2027 | { | |
2028 | close (tty); | |
2029 | dup2 (ostdin, 0); | |
2030 | dup2 (ostdout, 1); | |
2031 | dup2 (ostderr, 2); | |
2032 | close (ostdin); | |
2033 | close (ostdout); | |
2034 | close (ostderr); | |
2035 | } | |
2036 | ||
c906108c | 2037 | if (!ret) |
8a3fe4f8 AC |
2038 | error (_("Error creating process %s, (error %d)."), |
2039 | exec_file, (unsigned) GetLastError ()); | |
c906108c | 2040 | |
700b351b CF |
2041 | CloseHandle (pi.hThread); |
2042 | CloseHandle (pi.hProcess); | |
dfe7f3ac CF |
2043 | |
2044 | if (useshell && shell[0] != '\0') | |
2045 | saw_create = -1; | |
2046 | else | |
2047 | saw_create = 0; | |
2048 | ||
3ee6f623 | 2049 | do_initial_win32_stuff (pi.dwProcessId); |
ed9a39eb | 2050 | |
3ee6f623 | 2051 | /* win32_continue (DBG_CONTINUE, -1); */ |
c906108c SS |
2052 | } |
2053 | ||
2054 | static void | |
3ee6f623 | 2055 | win32_mourn_inferior (void) |
c906108c | 2056 | { |
3ee6f623 | 2057 | (void) win32_continue (DBG_CONTINUE, -1); |
fa4ba8da | 2058 | i386_cleanup_dregs(); |
3ee6f623 | 2059 | unpush_target (&win32_ops); |
c906108c SS |
2060 | generic_mourn_inferior (); |
2061 | } | |
2062 | ||
2063 | /* Send a SIGINT to the process group. This acts just like the user typed a | |
2064 | ^C on the controlling terminal. */ | |
2065 | ||
2066 | static void | |
3ee6f623 | 2067 | win32_stop (void) |
c906108c SS |
2068 | { |
2069 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); | |
c2d11a7d | 2070 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
c5aa993b | 2071 | registers_changed (); /* refresh register state */ |
c906108c SS |
2072 | } |
2073 | ||
3ee6f623 CF |
2074 | static int |
2075 | win32_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, | |
0a65a603 AC |
2076 | int write, struct mem_attrib *mem, |
2077 | struct target_ops *target) | |
c906108c | 2078 | { |
6f17862b | 2079 | DWORD done = 0; |
c906108c SS |
2080 | if (write) |
2081 | { | |
29fe111d CF |
2082 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
2083 | len, (DWORD) memaddr)); | |
6f17862b CF |
2084 | if (!WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our, |
2085 | len, &done)) | |
2086 | done = 0; | |
c906108c SS |
2087 | FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len); |
2088 | } | |
2089 | else | |
2090 | { | |
29fe111d CF |
2091 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
2092 | len, (DWORD) memaddr)); | |
6f17862b CF |
2093 | if (!ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, |
2094 | len, &done)) | |
2095 | done = 0; | |
c906108c SS |
2096 | } |
2097 | return done; | |
2098 | } | |
2099 | ||
3ee6f623 CF |
2100 | static void |
2101 | win32_kill_inferior (void) | |
c906108c SS |
2102 | { |
2103 | CHECK (TerminateProcess (current_process_handle, 0)); | |
2104 | ||
2105 | for (;;) | |
2106 | { | |
3ee6f623 | 2107 | if (!win32_continue (DBG_CONTINUE, -1)) |
c906108c SS |
2108 | break; |
2109 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
2110 | break; | |
2111 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
2112 | break; | |
2113 | } | |
2114 | ||
2115 | CHECK (CloseHandle (current_process_handle)); | |
2116 | ||
2117 | /* this may fail in an attached process so don't check. */ | |
3ade5333 CF |
2118 | if (current_thread && current_thread->h) |
2119 | (void) CloseHandle (current_thread->h); | |
3ee6f623 | 2120 | target_mourn_inferior (); /* or just win32_mourn_inferior? */ |
c906108c SS |
2121 | } |
2122 | ||
c906108c | 2123 | static void |
3ee6f623 | 2124 | win32_prepare_to_store (void) |
c906108c SS |
2125 | { |
2126 | /* Do nothing, since we can store individual regs */ | |
2127 | } | |
2128 | ||
2129 | static int | |
3ee6f623 | 2130 | win32_can_run (void) |
c906108c SS |
2131 | { |
2132 | return 1; | |
2133 | } | |
2134 | ||
2135 | static void | |
3ee6f623 | 2136 | win32_close (int x) |
c906108c | 2137 | { |
3ee6f623 | 2138 | DEBUG_EVENTS (("gdb: win32_close, inferior_ptid=%d\n", |
3bccec63 | 2139 | PIDGET (inferior_ptid))); |
c906108c SS |
2140 | } |
2141 | ||
3ee6f623 CF |
2142 | /* Convert pid to printable format. */ |
2143 | static char * | |
2144 | cygwin_pid_to_str (ptid_t ptid) | |
c906108c | 2145 | { |
3ee6f623 CF |
2146 | static char buf[80]; |
2147 | int pid = PIDGET (ptid); | |
2148 | ||
2149 | if ((DWORD) pid == current_event.dwProcessId) | |
2150 | sprintf (buf, "process %d", pid); | |
2151 | else | |
2152 | sprintf (buf, "thread %ld.0x%x", current_event.dwProcessId, pid); | |
2153 | return buf; | |
2154 | } | |
2155 | ||
3cb8e7f6 CF |
2156 | typedef struct |
2157 | { | |
2158 | struct target_ops *target; | |
2159 | bfd_vma addr; | |
2160 | } map_code_section_args; | |
2161 | ||
2162 | static void | |
2163 | map_single_dll_code_section (bfd *abfd, asection *sect, void *obj) | |
2164 | { | |
2165 | int old; | |
2166 | int update_coreops; | |
2167 | struct section_table *new_target_sect_ptr; | |
2168 | ||
2169 | map_code_section_args *args = (map_code_section_args *) obj; | |
2170 | struct target_ops *target = args->target; | |
2171 | if (sect->flags & SEC_CODE) | |
2172 | { | |
2173 | update_coreops = core_ops.to_sections == target->to_sections; | |
2174 | ||
2175 | if (target->to_sections) | |
2176 | { | |
2177 | old = target->to_sections_end - target->to_sections; | |
2178 | target->to_sections = (struct section_table *) | |
2179 | xrealloc ((char *) target->to_sections, | |
2180 | (sizeof (struct section_table)) * (1 + old)); | |
2181 | } | |
2182 | else | |
2183 | { | |
2184 | old = 0; | |
2185 | target->to_sections = (struct section_table *) | |
2186 | xmalloc ((sizeof (struct section_table))); | |
2187 | } | |
2188 | target->to_sections_end = target->to_sections + (1 + old); | |
2189 | ||
2190 | /* Update the to_sections field in the core_ops structure | |
2191 | if needed. */ | |
2192 | if (update_coreops) | |
2193 | { | |
2194 | core_ops.to_sections = target->to_sections; | |
2195 | core_ops.to_sections_end = target->to_sections_end; | |
2196 | } | |
2197 | new_target_sect_ptr = target->to_sections + old; | |
2198 | new_target_sect_ptr->addr = args->addr + bfd_section_vma (abfd, sect); | |
2199 | new_target_sect_ptr->endaddr = args->addr + bfd_section_vma (abfd, sect) + | |
2200 | bfd_section_size (abfd, sect);; | |
2201 | new_target_sect_ptr->the_bfd_section = sect; | |
2202 | new_target_sect_ptr->bfd = abfd; | |
2203 | } | |
2204 | } | |
2205 | ||
2206 | static int | |
2207 | dll_code_sections_add (const char *dll_name, int base_addr, struct target_ops *target) | |
2208 | { | |
2209 | bfd *dll_bfd; | |
2210 | map_code_section_args map_args; | |
2211 | asection *lowest_sect; | |
2212 | char *name; | |
2213 | if (dll_name == NULL || target == NULL) | |
2214 | return 0; | |
2215 | name = xstrdup (dll_name); | |
2216 | dll_bfd = bfd_openr (name, "pei-i386"); | |
2217 | if (dll_bfd == NULL) | |
2218 | return 0; | |
2219 | ||
2220 | if (bfd_check_format (dll_bfd, bfd_object)) | |
2221 | { | |
2222 | lowest_sect = bfd_get_section_by_name (dll_bfd, ".text"); | |
2223 | if (lowest_sect == NULL) | |
2224 | return 0; | |
2225 | map_args.target = target; | |
2226 | map_args.addr = base_addr - bfd_section_vma (dll_bfd, lowest_sect); | |
2227 | ||
2228 | bfd_map_over_sections (dll_bfd, &map_single_dll_code_section, (void *) (&map_args)); | |
2229 | } | |
2230 | ||
2231 | return 1; | |
2232 | } | |
2233 | ||
2234 | static void | |
2235 | core_section_load_dll_symbols (bfd *abfd, asection *sect, void *obj) | |
2236 | { | |
2237 | struct target_ops *target = (struct target_ops *) obj; | |
2238 | ||
2239 | DWORD base_addr; | |
2240 | ||
2241 | int dll_name_size; | |
2242 | struct win32_pstatus *pstatus; | |
2243 | struct so_list *so; | |
2244 | char *dll_name; | |
2245 | char *buf = NULL; | |
2246 | char *p; | |
2247 | struct objfile *objfile; | |
2248 | const char *dll_basename; | |
2249 | ||
2250 | if (strncmp (sect->name, ".module", 7) != 0) | |
2251 | return; | |
2252 | ||
2253 | buf = (char *) xmalloc (bfd_get_section_size (sect) + 1); | |
2254 | if (!buf) | |
2255 | { | |
2256 | printf_unfiltered ("memory allocation failed for %s\n", sect->name); | |
2257 | goto out; | |
2258 | } | |
2259 | if (!bfd_get_section_contents (abfd, sect, buf, 0, bfd_get_section_size (sect))) | |
2260 | goto out; | |
2261 | ||
2262 | pstatus = (struct win32_pstatus *) buf; | |
2263 | ||
2264 | memmove (&base_addr, &(pstatus->data.module_info.base_address), sizeof (base_addr)); | |
2265 | dll_name_size = pstatus->data.module_info.module_name_size; | |
2266 | if (offsetof (struct win32_pstatus, data.module_info.module_name) + dll_name_size > bfd_get_section_size (sect)) | |
2267 | goto out; | |
2268 | ||
2269 | dll_name = pstatus->data.module_info.module_name; | |
2270 | ||
2271 | if (!(dll_basename = strrchr (dll_name, '/'))) | |
2272 | dll_basename = dll_name; | |
2273 | else | |
2274 | dll_basename++; | |
2275 | ||
2276 | ALL_OBJFILES (objfile) | |
2277 | { | |
2278 | char *objfile_basename = strrchr (objfile->name, '/'); | |
2279 | ||
2280 | if (objfile_basename && | |
2281 | strcasecmp (dll_basename, objfile_basename + 1) == 0) | |
2282 | goto out; | |
2283 | } | |
2284 | ||
2285 | base_addr += 0x1000; | |
2286 | dll_name = register_loaded_dll (dll_name, base_addr, 1); | |
2287 | ||
2288 | if (!dll_code_sections_add (dll_name, (DWORD) base_addr, target)) | |
2289 | printf_unfiltered ("%s: Failed to map dll code sections.\n", dll_name); | |
2290 | ||
2291 | out: | |
2292 | if (buf) | |
2293 | xfree (buf); | |
2294 | return; | |
2295 | } | |
2296 | ||
2297 | static struct so_list * | |
2298 | win32_current_sos (void) | |
2299 | { | |
3929abe9 CF |
2300 | struct so_list *sop; |
2301 | struct so_list *start = NULL; | |
8efc5725 | 2302 | struct so_list *last = NULL; |
3929abe9 CF |
2303 | |
2304 | if (!solib_start.next && core_bfd) | |
3cb8e7f6 | 2305 | { |
3929abe9 | 2306 | win32_clear_solib (); |
3cb8e7f6 CF |
2307 | bfd_map_over_sections (core_bfd, &core_section_load_dll_symbols, |
2308 | &win32_ops); | |
3cb8e7f6 | 2309 | } |
3929abe9 CF |
2310 | |
2311 | for (sop = solib_start.next; sop; sop = sop->next) | |
2312 | { | |
2313 | struct so_list *new = XZALLOC (struct so_list); | |
2314 | strcpy (new->so_name, sop->so_name); | |
2315 | strcpy (new->so_original_name, sop->so_original_name); | |
2316 | if (!start) | |
2317 | last = start = new; | |
2318 | else | |
2319 | { | |
2320 | last->next = new; | |
2321 | last = new; | |
2322 | } | |
2323 | } | |
2324 | ||
2325 | return start; | |
3cb8e7f6 CF |
2326 | } |
2327 | ||
2328 | static void | |
2329 | fetch_elf_core_registers (char *core_reg_sect, | |
2330 | unsigned core_reg_size, | |
2331 | int which, | |
2332 | CORE_ADDR reg_addr) | |
2333 | { | |
2334 | int r; | |
2335 | if (core_reg_size < sizeof (CONTEXT)) | |
2336 | { | |
2337 | error (_("Core file register section too small (%u bytes)."), core_reg_size); | |
2338 | return; | |
2339 | } | |
2340 | for (r = 0; r < NUM_REGS; r++) | |
2341 | regcache_raw_supply (current_regcache, r, core_reg_sect + mappings[r]); | |
2342 | } | |
2343 | ||
3ee6f623 CF |
2344 | static void |
2345 | init_win32_ops (void) | |
2346 | { | |
2347 | win32_ops.to_shortname = "child"; | |
2348 | win32_ops.to_longname = "Win32 child process"; | |
2349 | win32_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2350 | win32_ops.to_open = win32_open; | |
2351 | win32_ops.to_close = win32_close; | |
2352 | win32_ops.to_attach = win32_attach; | |
2353 | win32_ops.to_detach = win32_detach; | |
2354 | win32_ops.to_resume = win32_resume; | |
2355 | win32_ops.to_wait = win32_wait; | |
2356 | win32_ops.to_fetch_registers = win32_fetch_inferior_registers; | |
2357 | win32_ops.to_store_registers = win32_store_inferior_registers; | |
2358 | win32_ops.to_prepare_to_store = win32_prepare_to_store; | |
2359 | win32_ops.deprecated_xfer_memory = win32_xfer_memory; | |
2360 | win32_ops.to_files_info = win32_files_info; | |
2361 | win32_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2362 | win32_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2363 | win32_ops.to_terminal_init = terminal_init_inferior; | |
2364 | win32_ops.to_terminal_inferior = terminal_inferior; | |
2365 | win32_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2366 | win32_ops.to_terminal_ours = terminal_ours; | |
2367 | win32_ops.to_terminal_save_ours = terminal_save_ours; | |
2368 | win32_ops.to_terminal_info = child_terminal_info; | |
2369 | win32_ops.to_kill = win32_kill_inferior; | |
2370 | win32_ops.to_create_inferior = win32_create_inferior; | |
2371 | win32_ops.to_mourn_inferior = win32_mourn_inferior; | |
2372 | win32_ops.to_can_run = win32_can_run; | |
2373 | win32_ops.to_thread_alive = win32_win32_thread_alive; | |
2374 | win32_ops.to_pid_to_str = cygwin_pid_to_str; | |
2375 | win32_ops.to_stop = win32_stop; | |
2376 | win32_ops.to_stratum = process_stratum; | |
2377 | win32_ops.to_has_all_memory = 1; | |
2378 | win32_ops.to_has_memory = 1; | |
2379 | win32_ops.to_has_stack = 1; | |
2380 | win32_ops.to_has_registers = 1; | |
2381 | win32_ops.to_has_execution = 1; | |
2382 | win32_ops.to_magic = OPS_MAGIC; | |
2383 | win32_ops.to_pid_to_exec_file = win32_pid_to_exec_file; | |
2384 | ||
2385 | win32_so_ops.relocate_section_addresses = win32_relocate_section_addresses; | |
2386 | win32_so_ops.free_so = win32_free_so; | |
2387 | win32_so_ops.clear_solib = win32_clear_solib; | |
3cb8e7f6 CF |
2388 | win32_so_ops.solib_create_inferior_hook = win32_solib_create_inferior_hook; |
2389 | win32_so_ops.special_symbol_handling = win32_special_symbol_handling; | |
3ee6f623 CF |
2390 | win32_so_ops.current_sos = win32_current_sos; |
2391 | win32_so_ops.open_symbol_file_object = NULL; | |
2392 | win32_so_ops.in_dynsym_resolve_code = NULL; | |
2393 | ||
2394 | /* FIXME: Don't do this here. *_gdbarch_init() should set so_ops. */ | |
2395 | current_target_so_ops = &win32_so_ops; | |
c906108c SS |
2396 | } |
2397 | ||
3929abe9 CF |
2398 | static void |
2399 | set_win32_aliases (char *argv0) | |
2400 | { | |
2401 | add_info_alias ("dll", "sharedlibrary", 1); | |
2402 | } | |
2403 | ||
c906108c | 2404 | void |
a6b6b089 | 2405 | _initialize_win32_nat (void) |
c906108c | 2406 | { |
fa58ee11 EZ |
2407 | struct cmd_list_element *c; |
2408 | ||
3ee6f623 | 2409 | init_win32_ops (); |
c906108c | 2410 | |
fa58ee11 | 2411 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2412 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2413 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2414 | |
2415 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2416 | ||
5bf193a2 AC |
2417 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2418 | Set use of shell to start subprocess."), _("\ | |
2419 | Show use of shell to start subprocess."), NULL, | |
2420 | NULL, | |
2421 | NULL, /* FIXME: i18n: */ | |
2422 | &setlist, &showlist); | |
2423 | ||
2424 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ | |
2425 | Set creation of new console when creating child process."), _("\ | |
2426 | Show creation of new console when creating child process."), NULL, | |
2427 | NULL, | |
2428 | NULL, /* FIXME: i18n: */ | |
2429 | &setlist, &showlist); | |
2430 | ||
2431 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2432 | Set creation of new group when creating child process."), _("\ | |
2433 | Show creation of new group when creating child process."), NULL, | |
2434 | NULL, | |
2435 | NULL, /* FIXME: i18n: */ | |
2436 | &setlist, &showlist); | |
2437 | ||
2438 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2439 | Set whether to display execution in child process."), _("\ | |
2440 | Show whether to display execution in child process."), NULL, | |
2441 | NULL, | |
2442 | NULL, /* FIXME: i18n: */ | |
2443 | &setlist, &showlist); | |
2444 | ||
2445 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2446 | Set whether to display kernel events in child process."), _("\ | |
2447 | Show whether to display kernel events in child process."), NULL, | |
2448 | NULL, | |
2449 | NULL, /* FIXME: i18n: */ | |
2450 | &setlist, &showlist); | |
2451 | ||
2452 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2453 | Set whether to display memory accesses in child process."), _("\ | |
2454 | Show whether to display memory accesses in child process."), NULL, | |
2455 | NULL, | |
2456 | NULL, /* FIXME: i18n: */ | |
2457 | &setlist, &showlist); | |
2458 | ||
2459 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2460 | &debug_exceptions, _("\ | |
2461 | Set whether to display kernel exceptions in child process."), _("\ | |
2462 | Show whether to display kernel exceptions in child process."), NULL, | |
2463 | NULL, | |
2464 | NULL, /* FIXME: i18n: */ | |
2465 | &setlist, &showlist); | |
c906108c | 2466 | |
c1748f97 | 2467 | add_prefix_cmd ("w32", class_info, info_w32_command, |
1bedd215 | 2468 | _("Print information specific to Win32 debugging."), |
baa93fa6 | 2469 | &info_w32_cmdlist, "info w32 ", 0, &infolist); |
c1748f97 PM |
2470 | |
2471 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2472 | _("Display selectors infos."), |
c1748f97 | 2473 | &info_w32_cmdlist); |
3ee6f623 | 2474 | add_target (&win32_ops); |
3929abe9 | 2475 | deprecated_init_ui_hook = set_win32_aliases; |
c906108c SS |
2476 | } |
2477 | ||
fa4ba8da PM |
2478 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2479 | ||
2480 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2481 | Here we just store the address in dr array, the registers will be | |
3ee6f623 | 2482 | actually set up when win32_continue is called. */ |
fa4ba8da PM |
2483 | void |
2484 | cygwin_set_dr (int i, CORE_ADDR addr) | |
2485 | { | |
2486 | if (i < 0 || i > 3) | |
2487 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2488 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
fa4ba8da PM |
2489 | dr[i] = (unsigned) addr; |
2490 | debug_registers_changed = 1; | |
2491 | debug_registers_used = 1; | |
2492 | } | |
2493 | ||
2494 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2495 | register. Here we just store the address in D_REGS, the watchpoint | |
3ee6f623 | 2496 | will be actually set up in win32_wait. */ |
fa4ba8da PM |
2497 | void |
2498 | cygwin_set_dr7 (unsigned val) | |
2499 | { | |
2500 | dr[7] = val; | |
2501 | debug_registers_changed = 1; | |
2502 | debug_registers_used = 1; | |
2503 | } | |
2504 | ||
2505 | /* Get the value of the DR6 debug status register from the inferior. | |
2506 | Here we just return the value stored in dr[6] | |
2507 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
2508 | unsigned | |
2509 | cygwin_get_dr6 (void) | |
2510 | { | |
2511 | return dr[6]; | |
2512 | } | |
2513 | ||
c906108c SS |
2514 | /* Determine if the thread referenced by "pid" is alive |
2515 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 | |
2516 | it means that the pid has died. Otherwise it is assumed to be alive. */ | |
2517 | static int | |
3ee6f623 | 2518 | win32_win32_thread_alive (ptid_t ptid) |
c906108c | 2519 | { |
39f77062 KB |
2520 | int pid = PIDGET (ptid); |
2521 | ||
c5aa993b JM |
2522 | return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
2523 | FALSE : TRUE; | |
c906108c SS |
2524 | } |
2525 | ||
8e860359 CF |
2526 | static struct core_fns win32_elf_core_fns = |
2527 | { | |
2528 | bfd_target_elf_flavour, | |
2529 | default_check_format, | |
2530 | default_core_sniffer, | |
2531 | fetch_elf_core_registers, | |
2532 | NULL | |
2533 | }; | |
2534 | ||
2535 | void | |
0613c401 | 2536 | _initialize_core_win32 (void) |
8e860359 | 2537 | { |
00e32a35 | 2538 | deprecated_add_core_fns (&win32_elf_core_fns); |
8e860359 | 2539 | } |
2a3d5645 CF |
2540 | |
2541 | void | |
2542 | _initialize_check_for_gdb_ini (void) | |
2543 | { | |
2544 | char *homedir; | |
2545 | if (inhibit_gdbinit) | |
2546 | return; | |
2547 | ||
2548 | homedir = getenv ("HOME"); | |
2549 | if (homedir) | |
2550 | { | |
2551 | char *p; | |
2552 | char *oldini = (char *) alloca (strlen (homedir) + | |
2553 | sizeof ("/gdb.ini")); | |
2554 | strcpy (oldini, homedir); | |
2555 | p = strchr (oldini, '\0'); | |
2556 | if (p > oldini && p[-1] != '/') | |
2557 | *p++ = '/'; | |
2558 | strcpy (p, "gdb.ini"); | |
2559 | if (access (oldini, 0) == 0) | |
2560 | { | |
2561 | int len = strlen (oldini); | |
2562 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2563 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2564 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2565 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2566 | } |
2567 | } | |
2568 | } |