Commit | Line | Data |
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24e60978 | 1 | /* Target-vector operations for controlling win32 child processes, for GDB. |
0a65a603 | 2 | |
281b533b | 3 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
33605d39 | 4 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
0a65a603 | 5 | |
e6433c28 | 6 | Contributed by Cygnus Solutions, A Red Hat Company. |
e88c49c3 | 7 | |
24e60978 SC |
8 | This file is part of GDB. |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
24e60978 SC |
13 | (at your option) any later version. |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
a9762ec7 | 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
24e60978 SC |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
24e60978 | 22 | |
dfe7f3ac | 23 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
24e60978 SC |
24 | |
25 | #include "defs.h" | |
26 | #include "frame.h" /* required by inferior.h */ | |
27 | #include "inferior.h" | |
28 | #include "target.h" | |
60250e8b | 29 | #include "exceptions.h" |
24e60978 SC |
30 | #include "gdbcore.h" |
31 | #include "command.h" | |
fa58ee11 | 32 | #include "completer.h" |
4e052eda | 33 | #include "regcache.h" |
2a3d5645 | 34 | #include "top.h" |
403d9909 CF |
35 | #include <signal.h> |
36 | #include <sys/types.h> | |
37 | #include <fcntl.h> | |
38 | #include <stdlib.h> | |
39 | #include <windows.h> | |
40 | #include <imagehlp.h> | |
10325bc5 | 41 | #ifdef __CYGWIN__ |
403d9909 | 42 | #include <sys/cygwin.h> |
10325bc5 | 43 | #endif |
a244bdca | 44 | #include <signal.h> |
cad9cd60 | 45 | |
24e60978 | 46 | #include "buildsym.h" |
1ef980b9 SC |
47 | #include "symfile.h" |
48 | #include "objfiles.h" | |
de1b3c3d | 49 | #include "gdb_obstack.h" |
24e60978 | 50 | #include "gdb_string.h" |
2c647436 | 51 | #include "gdb_stdint.h" |
fdfa3315 | 52 | #include "gdbthread.h" |
24e60978 | 53 | #include "gdbcmd.h" |
1750a5ef | 54 | #include <sys/param.h> |
1e37c281 | 55 | #include <unistd.h> |
4646aa9d | 56 | #include "exec.h" |
3ee6f623 | 57 | #include "solist.h" |
3cb8e7f6 | 58 | #include "solib.h" |
de1b3c3d | 59 | #include "xml-support.h" |
24e60978 | 60 | |
6c7de422 MK |
61 | #include "i386-tdep.h" |
62 | #include "i387-tdep.h" | |
63 | ||
de1b3c3d PA |
64 | #include "i386-cygwin-tdep.h" |
65 | ||
3ee6f623 | 66 | static struct target_ops win32_ops; |
3ee6f623 | 67 | |
10325bc5 | 68 | #ifdef __CYGWIN__ |
a244bdca CF |
69 | /* The starting and ending address of the cygwin1.dll text segment. */ |
70 | static bfd_vma cygwin_load_start; | |
71 | static bfd_vma cygwin_load_end; | |
10325bc5 | 72 | #endif |
a244bdca CF |
73 | |
74 | static int have_saved_context; /* True if we've saved context from a cygwin signal. */ | |
75 | static CONTEXT saved_context; /* Containes the saved context from a cygwin signal. */ | |
76 | ||
0714f9bf SS |
77 | /* If we're not using the old Cygwin header file set, define the |
78 | following which never should have been in the generic Win32 API | |
79 | headers in the first place since they were our own invention... */ | |
80 | #ifndef _GNU_H_WINDOWS_H | |
9d3789f7 | 81 | enum |
8e860359 CF |
82 | { |
83 | FLAG_TRACE_BIT = 0x100, | |
84 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
85 | }; | |
0714f9bf | 86 | #endif |
8e860359 | 87 | #include <psapi.h> |
0714f9bf | 88 | |
fa4ba8da PM |
89 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
90 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 91 | |
fa4ba8da | 92 | static unsigned dr[8]; |
87a45c96 CF |
93 | static int debug_registers_changed; |
94 | static int debug_registers_used; | |
6537bb24 | 95 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 96 | |
3cee93ac CF |
97 | /* The string sent by cygwin when it processes a signal. |
98 | FIXME: This should be in a cygwin include file. */ | |
3929abe9 CF |
99 | #ifndef _CYGWIN_SIGNAL_STRING |
100 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
101 | #endif | |
3cee93ac | 102 | |
29fe111d | 103 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 104 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
105 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
106 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
107 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 108 | |
3ee6f623 CF |
109 | static void win32_stop (void); |
110 | static int win32_win32_thread_alive (ptid_t); | |
111 | static void win32_kill_inferior (void); | |
3cee93ac | 112 | |
7393af7c PM |
113 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
114 | /* Set if a signal was received from the debugged process */ | |
115 | ||
3cee93ac | 116 | /* Thread information structure used to track information that is |
6537bb24 | 117 | not available in gdb's thread structure. */ |
3cee93ac | 118 | typedef struct thread_info_struct |
3a4b77d8 JM |
119 | { |
120 | struct thread_info_struct *next; | |
121 | DWORD id; | |
122 | HANDLE h; | |
123 | char *name; | |
6537bb24 | 124 | int suspended; |
3ade5333 | 125 | int reload_context; |
3a4b77d8 | 126 | CONTEXT context; |
1e37c281 | 127 | STACKFRAME sf; |
8e860359 CF |
128 | } |
129 | thread_info; | |
1e37c281 | 130 | |
29fe111d | 131 | static thread_info thread_head; |
24e60978 | 132 | |
24e60978 SC |
133 | /* The process and thread handles for the above context. */ |
134 | ||
3cee93ac CF |
135 | static DEBUG_EVENT current_event; /* The current debug event from |
136 | WaitForDebugEvent */ | |
137 | static HANDLE current_process_handle; /* Currently executing process */ | |
138 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 139 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 SC |
140 | |
141 | /* Counts of things. */ | |
142 | static int exception_count = 0; | |
143 | static int event_count = 0; | |
dfe7f3ac | 144 | static int saw_create; |
bf25528d | 145 | static int open_process_used = 0; |
24e60978 SC |
146 | |
147 | /* User options. */ | |
148 | static int new_console = 0; | |
10325bc5 | 149 | #ifdef __CYGWIN__ |
09280ddf | 150 | static int cygwin_exceptions = 0; |
10325bc5 | 151 | #endif |
1e37c281 | 152 | static int new_group = 1; |
dfe7f3ac CF |
153 | static int debug_exec = 0; /* show execution */ |
154 | static int debug_events = 0; /* show events from kernel */ | |
155 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 156 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
157 | static int useshell = 0; /* use shell for subprocesses */ |
158 | ||
24e60978 | 159 | /* This vector maps GDB's idea of a register's number into an address |
3cee93ac | 160 | in the win32 exception context vector. |
24e60978 | 161 | |
3cee93ac | 162 | It also contains the bit mask needed to load the register in question. |
24e60978 SC |
163 | |
164 | One day we could read a reg, we could inspect the context we | |
165 | already have loaded, if it doesn't have the bit set that we need, | |
166 | we read that set of registers in using GetThreadContext. If the | |
167 | context already contains what we need, we just unpack it. Then to | |
168 | write a register, first we have to ensure that the context contains | |
169 | the other regs of the group, and then we copy the info in and set | |
170 | out bit. */ | |
171 | ||
3cee93ac CF |
172 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) |
173 | static const int mappings[] = | |
24e60978 | 174 | { |
3a4b77d8 JM |
175 | context_offset (Eax), |
176 | context_offset (Ecx), | |
177 | context_offset (Edx), | |
178 | context_offset (Ebx), | |
179 | context_offset (Esp), | |
180 | context_offset (Ebp), | |
181 | context_offset (Esi), | |
182 | context_offset (Edi), | |
183 | context_offset (Eip), | |
184 | context_offset (EFlags), | |
185 | context_offset (SegCs), | |
186 | context_offset (SegSs), | |
187 | context_offset (SegDs), | |
188 | context_offset (SegEs), | |
189 | context_offset (SegFs), | |
190 | context_offset (SegGs), | |
191 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
192 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
193 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
194 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
195 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
196 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
197 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
198 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
1e37c281 JM |
199 | context_offset (FloatSave.ControlWord), |
200 | context_offset (FloatSave.StatusWord), | |
201 | context_offset (FloatSave.TagWord), | |
202 | context_offset (FloatSave.ErrorSelector), | |
203 | context_offset (FloatSave.ErrorOffset), | |
204 | context_offset (FloatSave.DataSelector), | |
205 | context_offset (FloatSave.DataOffset), | |
d3a09475 | 206 | context_offset (FloatSave.ErrorSelector) |
97da3b20 | 207 | /* XMM0-7 */ , |
441532d7 PM |
208 | context_offset (ExtendedRegisters[10*16]), |
209 | context_offset (ExtendedRegisters[11*16]), | |
210 | context_offset (ExtendedRegisters[12*16]), | |
211 | context_offset (ExtendedRegisters[13*16]), | |
212 | context_offset (ExtendedRegisters[14*16]), | |
213 | context_offset (ExtendedRegisters[15*16]), | |
214 | context_offset (ExtendedRegisters[16*16]), | |
215 | context_offset (ExtendedRegisters[17*16]), | |
216 | /* MXCSR */ | |
217 | context_offset (ExtendedRegisters[24]) | |
24e60978 SC |
218 | }; |
219 | ||
d3a09475 JM |
220 | #undef context_offset |
221 | ||
24e60978 SC |
222 | /* This vector maps the target's idea of an exception (extracted |
223 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
224 | ||
225 | struct xlate_exception | |
226 | { | |
227 | int them; | |
228 | enum target_signal us; | |
229 | }; | |
230 | ||
24e60978 SC |
231 | static const struct xlate_exception |
232 | xlate[] = | |
233 | { | |
234 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 235 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
236 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
237 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
238 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
7393af7c | 239 | {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE}, |
24e60978 SC |
240 | {-1, -1}}; |
241 | ||
fa4ba8da PM |
242 | static void |
243 | check (BOOL ok, const char *file, int line) | |
244 | { | |
245 | if (!ok) | |
dfe7f3ac | 246 | printf_filtered ("error return %s:%d was %lu\n", file, line, |
fa4ba8da PM |
247 | GetLastError ()); |
248 | } | |
249 | ||
6537bb24 PA |
250 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
251 | then also retrieve the context for this thread. If GET_CONTEXT is | |
252 | negative, then don't suspend the thread. */ | |
3cee93ac CF |
253 | static thread_info * |
254 | thread_rec (DWORD id, int get_context) | |
24e60978 | 255 | { |
3cee93ac CF |
256 | thread_info *th; |
257 | ||
3a4b77d8 | 258 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
259 | if (th->id == id) |
260 | { | |
6537bb24 | 261 | if (!th->suspended && get_context) |
3cee93ac | 262 | { |
8a892701 | 263 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
264 | { |
265 | if (SuspendThread (th->h) == (DWORD) -1) | |
266 | { | |
267 | DWORD err = GetLastError (); | |
268 | warning (_("SuspendThread failed. (winerr %d)"), | |
269 | (int) err); | |
270 | return NULL; | |
271 | } | |
272 | th->suspended = 1; | |
273 | } | |
3cee93ac | 274 | else if (get_context < 0) |
6537bb24 | 275 | th->suspended = -1; |
3ade5333 | 276 | th->reload_context = 1; |
3cee93ac CF |
277 | } |
278 | return th; | |
279 | } | |
280 | ||
281 | return NULL; | |
282 | } | |
283 | ||
284 | /* Add a thread to the thread list */ | |
285 | static thread_info * | |
3ee6f623 | 286 | win32_add_thread (DWORD id, HANDLE h) |
3cee93ac CF |
287 | { |
288 | thread_info *th; | |
289 | ||
290 | if ((th = thread_rec (id, FALSE))) | |
291 | return th; | |
292 | ||
3929abe9 | 293 | th = XZALLOC (thread_info); |
3cee93ac CF |
294 | th->id = id; |
295 | th->h = h; | |
296 | th->next = thread_head.next; | |
297 | thread_head.next = th; | |
39f77062 | 298 | add_thread (pid_to_ptid (id)); |
dfe7f3ac | 299 | /* Set the debug registers for the new thread in they are used. */ |
fa4ba8da PM |
300 | if (debug_registers_used) |
301 | { | |
302 | /* Only change the value of the debug registers. */ | |
303 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
304 | CHECK (GetThreadContext (th->h, &th->context)); | |
305 | th->context.Dr0 = dr[0]; | |
306 | th->context.Dr1 = dr[1]; | |
307 | th->context.Dr2 = dr[2]; | |
308 | th->context.Dr3 = dr[3]; | |
6537bb24 | 309 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
310 | th->context.Dr7 = dr[7]; |
311 | CHECK (SetThreadContext (th->h, &th->context)); | |
312 | th->context.ContextFlags = 0; | |
313 | } | |
3cee93ac | 314 | return th; |
24e60978 SC |
315 | } |
316 | ||
3cee93ac CF |
317 | /* Clear out any old thread list and reintialize it to a |
318 | pristine state. */ | |
24e60978 | 319 | static void |
3ee6f623 | 320 | win32_init_thread_list (void) |
24e60978 | 321 | { |
3cee93ac CF |
322 | thread_info *th = &thread_head; |
323 | ||
3ee6f623 | 324 | DEBUG_EVENTS (("gdb: win32_init_thread_list\n")); |
3cee93ac CF |
325 | init_thread_list (); |
326 | while (th->next != NULL) | |
24e60978 | 327 | { |
3cee93ac CF |
328 | thread_info *here = th->next; |
329 | th->next = here->next; | |
b8c9b27d | 330 | xfree (here); |
24e60978 | 331 | } |
059198c1 | 332 | thread_head.next = NULL; |
3cee93ac CF |
333 | } |
334 | ||
335 | /* Delete a thread from the list of threads */ | |
336 | static void | |
3ee6f623 | 337 | win32_delete_thread (DWORD id) |
3cee93ac CF |
338 | { |
339 | thread_info *th; | |
340 | ||
341 | if (info_verbose) | |
39f77062 KB |
342 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id))); |
343 | delete_thread (pid_to_ptid (id)); | |
3cee93ac CF |
344 | |
345 | for (th = &thread_head; | |
346 | th->next != NULL && th->next->id != id; | |
347 | th = th->next) | |
348 | continue; | |
349 | ||
350 | if (th->next != NULL) | |
24e60978 | 351 | { |
3cee93ac CF |
352 | thread_info *here = th->next; |
353 | th->next = here->next; | |
b8c9b27d | 354 | xfree (here); |
24e60978 SC |
355 | } |
356 | } | |
357 | ||
3cee93ac | 358 | static void |
56be3814 | 359 | do_win32_fetch_inferior_registers (struct regcache *regcache, int r) |
24e60978 | 360 | { |
1e37c281 | 361 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
362 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
363 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 364 | long l; |
6c7de422 | 365 | |
3ade5333 | 366 | if (!current_thread) |
d6dc8049 CF |
367 | return; /* Windows sometimes uses a non-existent thread id in its |
368 | events */ | |
3ade5333 CF |
369 | |
370 | if (current_thread->reload_context) | |
371 | { | |
cb832706 | 372 | #ifdef __COPY_CONTEXT_SIZE |
a244bdca CF |
373 | if (have_saved_context) |
374 | { | |
375 | /* Lie about where the program actually is stopped since cygwin has informed us that | |
376 | we should consider the signal to have occurred at another location which is stored | |
377 | in "saved_context. */ | |
378 | memcpy (¤t_thread->context, &saved_context, __COPY_CONTEXT_SIZE); | |
379 | have_saved_context = 0; | |
380 | } | |
381 | else | |
cb832706 | 382 | #endif |
a244bdca CF |
383 | { |
384 | thread_info *th = current_thread; | |
385 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
386 | GetThreadContext (th->h, &th->context); | |
88616312 PM |
387 | /* Copy dr values from that thread. |
388 | But only if there were not modified since last stop. PR gdb/2388 */ | |
389 | if (!debug_registers_changed) | |
390 | { | |
391 | dr[0] = th->context.Dr0; | |
392 | dr[1] = th->context.Dr1; | |
393 | dr[2] = th->context.Dr2; | |
394 | dr[3] = th->context.Dr3; | |
395 | dr[6] = th->context.Dr6; | |
396 | dr[7] = th->context.Dr7; | |
397 | } | |
a244bdca | 398 | } |
3ade5333 CF |
399 | current_thread->reload_context = 0; |
400 | } | |
401 | ||
20a6ec49 | 402 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 403 | { |
8e860359 | 404 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 405 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 406 | } |
20a6ec49 | 407 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 408 | { |
8e860359 | 409 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 410 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 JM |
411 | } |
412 | else if (r >= 0) | |
56be3814 | 413 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 414 | else |
24e60978 | 415 | { |
20a6ec49 | 416 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
56be3814 | 417 | do_win32_fetch_inferior_registers (regcache, r); |
24e60978 | 418 | } |
3cee93ac CF |
419 | } |
420 | ||
421 | static void | |
56be3814 | 422 | win32_fetch_inferior_registers (struct regcache *regcache, int r) |
3cee93ac | 423 | { |
39f77062 | 424 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
d6dc8049 CF |
425 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
426 | thread id in its events */ | |
3ade5333 | 427 | if (current_thread) |
56be3814 | 428 | do_win32_fetch_inferior_registers (regcache, r); |
3cee93ac CF |
429 | } |
430 | ||
431 | static void | |
56be3814 | 432 | do_win32_store_inferior_registers (const struct regcache *regcache, int r) |
3cee93ac | 433 | { |
3ade5333 | 434 | if (!current_thread) |
d6dc8049 | 435 | /* Windows sometimes uses a non-existent thread id in its events */; |
3ade5333 | 436 | else if (r >= 0) |
56be3814 | 437 | regcache_raw_collect (regcache, r, |
822c9732 | 438 | ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
439 | else |
440 | { | |
40a6adc1 | 441 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
56be3814 | 442 | do_win32_store_inferior_registers (regcache, r); |
24e60978 SC |
443 | } |
444 | } | |
445 | ||
3cee93ac CF |
446 | /* Store a new register value into the current thread context */ |
447 | static void | |
56be3814 | 448 | win32_store_inferior_registers (struct regcache *regcache, int r) |
3cee93ac | 449 | { |
39f77062 | 450 | current_thread = thread_rec (PIDGET (inferior_ptid), TRUE); |
d6dc8049 CF |
451 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
452 | thread id in its events */ | |
3ade5333 | 453 | if (current_thread) |
56be3814 | 454 | do_win32_store_inferior_registers (regcache, r); |
3cee93ac | 455 | } |
24e60978 | 456 | |
1e37c281 | 457 | static int psapi_loaded = 0; |
33605d39 CF |
458 | static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, |
459 | LPDWORD); | |
460 | static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, | |
461 | DWORD); | |
462 | static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, | |
463 | DWORD); | |
464 | ||
465 | /* Get the name of a given module at at given base address. If base_address | |
466 | is zero return the first loaded module (which is always the name of the | |
467 | executable). */ | |
3ee6f623 | 468 | static int |
33605d39 | 469 | get_module_name (DWORD base_address, char *dll_name_ret) |
1e37c281 JM |
470 | { |
471 | DWORD len; | |
472 | MODULEINFO mi; | |
473 | int i; | |
8e860359 | 474 | HMODULE dh_buf[1]; |
33605d39 | 475 | HMODULE *DllHandle = dh_buf; /* Set to temporary storage for initial query */ |
1e37c281 | 476 | DWORD cbNeeded; |
33605d39 CF |
477 | #ifdef __CYGWIN__ |
478 | char pathbuf[PATH_MAX + 1]; /* Temporary storage prior to converting to | |
479 | posix form */ | |
480 | #else | |
481 | char *pathbuf = dll_name_ret; /* Just copy directly to passed-in arg */ | |
482 | #endif | |
1e37c281 | 483 | |
33605d39 CF |
484 | /* If psapi_loaded < 0 either psapi.dll is not available or it does not contain |
485 | the needed functions. */ | |
486 | if (psapi_loaded <= 0) | |
487 | goto failed; | |
1e37c281 JM |
488 | |
489 | cbNeeded = 0; | |
33605d39 CF |
490 | /* Find size of buffer needed to handle list of modules loaded in inferior */ |
491 | if (!psapi_EnumProcessModules (current_process_handle, DllHandle, | |
492 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1e37c281 JM |
493 | goto failed; |
494 | ||
33605d39 | 495 | /* Allocate correct amount of space for module list */ |
8e860359 | 496 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
497 | if (!DllHandle) |
498 | goto failed; | |
499 | ||
33605d39 CF |
500 | /* Get the list of modules */ |
501 | if (!psapi_EnumProcessModules (current_process_handle, DllHandle, cbNeeded, | |
502 | &cbNeeded)) | |
1e37c281 JM |
503 | goto failed; |
504 | ||
29fe111d | 505 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 | 506 | { |
33605d39 CF |
507 | /* Get information on this module */ |
508 | if (!psapi_GetModuleInformation (current_process_handle, DllHandle[i], | |
509 | &mi, sizeof (mi))) | |
8a3fe4f8 | 510 | error (_("Can't get module info")); |
1e37c281 | 511 | |
33605d39 CF |
512 | if (!base_address || (DWORD) (mi.lpBaseOfDll) == base_address) |
513 | { | |
514 | /* Try to find the name of the given module */ | |
515 | len = psapi_GetModuleFileNameExA (current_process_handle, | |
516 | DllHandle[i], pathbuf, MAX_PATH); | |
517 | if (len == 0) | |
518 | error (_("Error getting dll name: %u."), (unsigned) GetLastError ()); | |
519 | #ifdef __CYGWIN__ | |
520 | /* Cygwin prefers that the path be in /x/y/z format */ | |
521 | cygwin_conv_to_full_posix_path (pathbuf, dll_name_ret); | |
522 | #endif | |
523 | return 1; /* success */ | |
524 | } | |
1e37c281 JM |
525 | } |
526 | ||
527 | failed: | |
528 | dll_name_ret[0] = '\0'; | |
33605d39 | 529 | return 0; /* failure */ |
1e37c281 JM |
530 | } |
531 | ||
450005e7 CF |
532 | /* Encapsulate the information required in a call to |
533 | symbol_file_add_args */ | |
8a892701 CF |
534 | struct safe_symbol_file_add_args |
535 | { | |
536 | char *name; | |
537 | int from_tty; | |
538 | struct section_addr_info *addrs; | |
539 | int mainline; | |
540 | int flags; | |
7c5c87c0 | 541 | struct ui_file *err, *out; |
8a892701 CF |
542 | struct objfile *ret; |
543 | }; | |
544 | ||
02e423b9 | 545 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 546 | struct lm_info |
02e423b9 | 547 | { |
02e423b9 | 548 | DWORD load_addr; |
3ee6f623 CF |
549 | }; |
550 | ||
551 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 552 | |
450005e7 CF |
553 | /* Call symbol_file_add with stderr redirected. We don't care if there |
554 | are errors. */ | |
8a892701 CF |
555 | static int |
556 | safe_symbol_file_add_stub (void *argv) | |
557 | { | |
3ee6f623 CF |
558 | #define p ((struct safe_symbol_file_add_args *) argv) |
559 | struct so_list *so = &solib_start; | |
02e423b9 | 560 | |
8a892701 CF |
561 | p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags); |
562 | return !!p->ret; | |
563 | #undef p | |
564 | } | |
565 | ||
450005e7 | 566 | /* Restore gdb's stderr after calling symbol_file_add */ |
8a892701 | 567 | static void |
7c5c87c0 | 568 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 569 | { |
8e860359 | 570 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 571 | gdb_flush (gdb_stderr); |
7c5c87c0 | 572 | gdb_flush (gdb_stdout); |
d3ff4a77 | 573 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 574 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 575 | gdb_stderr = sp->err; |
9d3789f7 | 576 | gdb_stdout = sp->out; |
8e860359 | 577 | #undef sp |
8a892701 CF |
578 | } |
579 | ||
450005e7 | 580 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
581 | static struct objfile * |
582 | safe_symbol_file_add (char *name, int from_tty, | |
583 | struct section_addr_info *addrs, | |
584 | int mainline, int flags) | |
8a892701 CF |
585 | { |
586 | struct safe_symbol_file_add_args p; | |
587 | struct cleanup *cleanup; | |
588 | ||
7c5c87c0 | 589 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 590 | |
7c5c87c0 CF |
591 | p.err = gdb_stderr; |
592 | p.out = gdb_stdout; | |
450005e7 | 593 | gdb_flush (gdb_stderr); |
7c5c87c0 | 594 | gdb_flush (gdb_stdout); |
d3ff4a77 | 595 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 596 | gdb_stdout = ui_file_new (); |
8a892701 CF |
597 | p.name = name; |
598 | p.from_tty = from_tty; | |
599 | p.addrs = addrs; | |
600 | p.mainline = mainline; | |
601 | p.flags = flags; | |
602 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
603 | ||
604 | do_cleanups (cleanup); | |
605 | return p.ret; | |
606 | } | |
607 | ||
de1b3c3d PA |
608 | static struct so_list * |
609 | win32_make_so (const char *name, DWORD load_addr) | |
8e860359 | 610 | { |
3ee6f623 | 611 | struct so_list *so; |
3f8ad85b CF |
612 | char buf[MAX_PATH + 1]; |
613 | char cwd[MAX_PATH + 1]; | |
614 | char *p; | |
615 | WIN32_FIND_DATA w32_fd; | |
616 | HANDLE h = FindFirstFile(name, &w32_fd); | |
5633f842 | 617 | MEMORY_BASIC_INFORMATION m; |
3f8ad85b | 618 | |
6badb179 CF |
619 | if (h == INVALID_HANDLE_VALUE) |
620 | strcpy (buf, name); | |
621 | else | |
3f8ad85b | 622 | { |
c914e0cc CF |
623 | FindClose (h); |
624 | strcpy (buf, name); | |
625 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
626 | { | |
627 | p = strrchr (buf, '\\'); | |
628 | if (p) | |
629 | p[1] = '\0'; | |
630 | SetCurrentDirectory (buf); | |
631 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
632 | SetCurrentDirectory (cwd); | |
633 | } | |
3f8ad85b CF |
634 | } |
635 | ||
3ee6f623 CF |
636 | if (strcasecmp (buf, "ntdll.dll") == 0) |
637 | { | |
638 | GetSystemDirectory (buf, sizeof (buf)); | |
639 | strcat (buf, "\\ntdll.dll"); | |
640 | } | |
3929abe9 | 641 | so = XZALLOC (struct so_list); |
3ee6f623 CF |
642 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); |
643 | so->lm_info->load_addr = load_addr; | |
de1b3c3d | 644 | strcpy (so->so_original_name, name); |
10325bc5 PA |
645 | #ifndef __CYGWIN__ |
646 | strcpy (so->so_name, buf); | |
647 | #else | |
648 | cygwin_conv_to_posix_path (buf, so->so_name); | |
de1b3c3d PA |
649 | /* Record cygwin1.dll .text start/end. */ |
650 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
651 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
652 | { | |
653 | bfd *abfd; | |
654 | asection *text = NULL; | |
655 | CORE_ADDR text_vma; | |
8e860359 | 656 | |
610dd7f9 | 657 | abfd = bfd_openr (so->so_name, "pei-i386"); |
a244bdca | 658 | |
de1b3c3d PA |
659 | if (!abfd) |
660 | return so; | |
661 | ||
662 | if (bfd_check_format (abfd, bfd_object)) | |
663 | text = bfd_get_section_by_name (abfd, ".text"); | |
664 | ||
665 | if (!text) | |
666 | { | |
667 | bfd_close (abfd); | |
668 | return so; | |
669 | } | |
670 | ||
671 | /* The symbols in a dll are offset by 0x1000, which is the the | |
672 | offset from 0 of the first byte in an image - because of the | |
673 | file header and the section alignment. */ | |
674 | cygwin_load_start = load_addr + 0x1000; | |
675 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); | |
676 | ||
677 | bfd_close (abfd); | |
678 | } | |
10325bc5 | 679 | #endif |
de1b3c3d PA |
680 | |
681 | return so; | |
8e860359 CF |
682 | } |
683 | ||
3ee6f623 | 684 | static char * |
dfe7f3ac CF |
685 | get_image_name (HANDLE h, void *address, int unicode) |
686 | { | |
687 | static char buf[(2 * MAX_PATH) + 1]; | |
688 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
689 | char *address_ptr; | |
690 | int len = 0; | |
691 | char b[2]; | |
692 | DWORD done; | |
693 | ||
694 | /* Attempt to read the name of the dll that was detected. | |
695 | This is documented to work only when actively debugging | |
696 | a program. It will not work for attached processes. */ | |
697 | if (address == NULL) | |
698 | return NULL; | |
699 | ||
dfe7f3ac CF |
700 | /* See if we could read the address of a string, and that the |
701 | address isn't null. */ | |
9f476a01 | 702 | if (!ReadProcessMemory (h, address, &address_ptr, sizeof (address_ptr), &done) |
6f17862b | 703 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
704 | return NULL; |
705 | ||
706 | /* Find the length of the string */ | |
6f17862b CF |
707 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
708 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
709 | continue; | |
dfe7f3ac CF |
710 | |
711 | if (!unicode) | |
712 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
713 | else | |
714 | { | |
715 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
716 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
717 | &done); | |
718 | ||
719 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
720 | } | |
721 | ||
722 | return buf; | |
723 | } | |
724 | ||
24e60978 SC |
725 | /* Wait for child to do something. Return pid of child, or -1 in case |
726 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 727 | static int |
0a65a603 | 728 | handle_load_dll (void *dummy) |
24e60978 | 729 | { |
3a4b77d8 | 730 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
3cee93ac | 731 | char dll_buf[MAX_PATH + 1]; |
450005e7 | 732 | char *dll_name = NULL; |
3cee93ac | 733 | |
3a4b77d8 | 734 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 735 | |
33605d39 | 736 | if (!get_module_name ((DWORD) event->lpBaseOfDll, dll_buf)) |
8e860359 | 737 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 738 | |
1e37c281 | 739 | dll_name = dll_buf; |
24e60978 | 740 | |
dfe7f3ac | 741 | if (*dll_name == '\0') |
de1b3c3d PA |
742 | dll_name = get_image_name (current_process_handle, |
743 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
744 | if (!dll_name) |
745 | return 1; | |
746 | ||
de1b3c3d PA |
747 | solib_end->next = win32_make_so (dll_name, (DWORD) event->lpBaseOfDll); |
748 | solib_end = solib_end->next; | |
450005e7 | 749 | |
7488902c PM |
750 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at 0x%lx.\n", solib_end->so_name, |
751 | (DWORD) solib_end->lm_info->load_addr)); | |
752 | ||
450005e7 CF |
753 | return 1; |
754 | } | |
755 | ||
3ee6f623 CF |
756 | static void |
757 | win32_free_so (struct so_list *so) | |
758 | { | |
3ee6f623 CF |
759 | if (so->lm_info) |
760 | xfree (so->lm_info); | |
de1b3c3d | 761 | xfree (so); |
3cb8e7f6 CF |
762 | } |
763 | ||
d3ff4a77 | 764 | static int |
0a65a603 | 765 | handle_unload_dll (void *dummy) |
d3ff4a77 | 766 | { |
de1b3c3d | 767 | DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 768 | struct so_list *so; |
d3ff4a77 CF |
769 | |
770 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 771 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 772 | { |
3ee6f623 | 773 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
774 | so->next = sodel->next; |
775 | if (!so->next) | |
776 | solib_end = so; | |
7488902c PM |
777 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
778 | ||
de1b3c3d | 779 | win32_free_so (sodel); |
3929abe9 | 780 | solib_add (NULL, 0, NULL, auto_solib_add); |
d3ff4a77 CF |
781 | return 1; |
782 | } | |
3929abe9 | 783 | |
8a3fe4f8 | 784 | error (_("Error: dll starting at 0x%lx not found."), (DWORD) lpBaseOfDll); |
d3ff4a77 CF |
785 | |
786 | return 0; | |
787 | } | |
788 | ||
450005e7 | 789 | /* Clear list of loaded DLLs. */ |
3ee6f623 CF |
790 | static void |
791 | win32_clear_solib (void) | |
450005e7 | 792 | { |
450005e7 CF |
793 | solib_start.next = NULL; |
794 | solib_end = &solib_start; | |
450005e7 | 795 | } |
295732ea | 796 | |
450005e7 CF |
797 | /* Load DLL symbol info. */ |
798 | void | |
7470a420 | 799 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 800 | { |
8e860359 | 801 | int n; |
450005e7 | 802 | dont_repeat (); |
8e860359 | 803 | |
450005e7 | 804 | if (args == NULL) |
8a3fe4f8 | 805 | error (_("dll-symbols requires a file name")); |
450005e7 | 806 | |
8e860359 CF |
807 | n = strlen (args); |
808 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
809 | { | |
810 | char *newargs = (char *) alloca (n + 4 + 1); | |
811 | strcpy (newargs, args); | |
812 | strcat (newargs, ".dll"); | |
813 | args = newargs; | |
814 | } | |
815 | ||
7470a420 | 816 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 817 | } |
450005e7 | 818 | |
3cee93ac CF |
819 | /* Handle DEBUG_STRING output from child process. |
820 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
821 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
822 | static int | |
823 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
824 | { | |
a244bdca CF |
825 | char *s = NULL; |
826 | int retval = 0; | |
3cee93ac CF |
827 | |
828 | if (!target_read_string | |
2c647436 PM |
829 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
830 | &s, 1024, 0) | |
3cee93ac | 831 | || !s || !*s) |
a244bdca CF |
832 | /* nothing to do */; |
833 | else if (strncmp (s, _CYGWIN_SIGNAL_STRING, sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0) | |
3cee93ac | 834 | { |
10325bc5 | 835 | #ifdef __CYGWIN__ |
d3a09475 | 836 | if (strncmp (s, "cYg", 3) != 0) |
10325bc5 | 837 | #endif |
8a3fe4f8 | 838 | warning (("%s"), s); |
3cee93ac | 839 | } |
cb832706 | 840 | #ifdef __COPY_CONTEXT_SIZE |
d3a09475 | 841 | else |
3cee93ac | 842 | { |
a244bdca CF |
843 | /* Got a cygwin signal marker. A cygwin signal is followed by the signal number |
844 | itself and then optionally followed by the thread id and address to saved context | |
845 | within the DLL. If these are supplied, then the given thread is assumed to have | |
846 | issued the signal and the context from the thread is assumed to be stored at the | |
847 | given address in the inferior. Tell gdb to treat this like a real signal. */ | |
3cee93ac | 848 | char *p; |
3929abe9 | 849 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
a244bdca | 850 | int gotasig = target_signal_from_host (sig); |
0714f9bf SS |
851 | ourstatus->value.sig = gotasig; |
852 | if (gotasig) | |
a244bdca CF |
853 | { |
854 | LPCVOID x; | |
855 | DWORD n; | |
856 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
857 | retval = strtoul (p, &p, 0); | |
858 | if (!retval) | |
859 | retval = main_thread_id; | |
860 | else if ((x = (LPCVOID) strtoul (p, &p, 0)) | |
861 | && ReadProcessMemory (current_process_handle, x, | |
862 | &saved_context, __COPY_CONTEXT_SIZE, &n) | |
863 | && n == __COPY_CONTEXT_SIZE) | |
864 | have_saved_context = 1; | |
865 | current_event.dwThreadId = retval; | |
866 | } | |
3cee93ac | 867 | } |
cb832706 | 868 | #endif |
3cee93ac | 869 | |
a244bdca CF |
870 | if (s) |
871 | xfree (s); | |
872 | return retval; | |
3cee93ac | 873 | } |
24e60978 | 874 | |
c1748f97 PM |
875 | static int |
876 | display_selector (HANDLE thread, DWORD sel) | |
877 | { | |
878 | LDT_ENTRY info; | |
879 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
880 | { | |
881 | int base, limit; | |
882 | printf_filtered ("0x%03lx: ", sel); | |
883 | if (!info.HighWord.Bits.Pres) | |
baa93fa6 CF |
884 | { |
885 | puts_filtered ("Segment not present\n"); | |
886 | return 0; | |
887 | } | |
c1748f97 PM |
888 | base = (info.HighWord.Bits.BaseHi << 24) + |
889 | (info.HighWord.Bits.BaseMid << 16) | |
890 | + info.BaseLow; | |
891 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
892 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 893 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
894 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
895 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 896 | puts_filtered(" 32-bit "); |
c1748f97 | 897 | else |
baa93fa6 | 898 | puts_filtered(" 16-bit "); |
c1748f97 PM |
899 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
900 | { | |
901 | case 0: | |
baa93fa6 CF |
902 | puts_filtered ("Data (Read-Only, Exp-up"); |
903 | break; | |
c1748f97 | 904 | case 1: |
baa93fa6 CF |
905 | puts_filtered ("Data (Read/Write, Exp-up"); |
906 | break; | |
c1748f97 | 907 | case 2: |
baa93fa6 CF |
908 | puts_filtered ("Unused segment ("); |
909 | break; | |
c1748f97 | 910 | case 3: |
baa93fa6 CF |
911 | puts_filtered ("Data (Read/Write, Exp-down"); |
912 | break; | |
c1748f97 | 913 | case 4: |
baa93fa6 CF |
914 | puts_filtered ("Code (Exec-Only, N.Conf"); |
915 | break; | |
c1748f97 | 916 | case 5: |
baa93fa6 | 917 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
918 | break; |
919 | case 6: | |
baa93fa6 | 920 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
921 | break; |
922 | case 7: | |
baa93fa6 | 923 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
924 | break; |
925 | default: | |
926 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
927 | } | |
928 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 929 | puts_filtered(", N.Acc"); |
c1748f97 PM |
930 | puts_filtered (")\n"); |
931 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
932 | puts_filtered("System selector "); | |
933 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
934 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 935 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
936 | else |
937 | puts_filtered ("Byte granular.\n"); | |
938 | return 1; | |
939 | } | |
940 | else | |
941 | { | |
942 | printf_filtered ("Invalid selector 0x%lx.\n",sel); | |
943 | return 0; | |
944 | } | |
945 | } | |
946 | ||
947 | static void | |
948 | display_selectors (char * args, int from_tty) | |
949 | { | |
950 | if (!current_thread) | |
951 | { | |
952 | puts_filtered ("Impossible to display selectors now.\n"); | |
953 | return; | |
954 | } | |
955 | if (!args) | |
956 | { | |
957 | ||
958 | puts_filtered ("Selector $cs\n"); | |
959 | display_selector (current_thread->h, | |
baa93fa6 | 960 | current_thread->context.SegCs); |
c1748f97 PM |
961 | puts_filtered ("Selector $ds\n"); |
962 | display_selector (current_thread->h, | |
baa93fa6 | 963 | current_thread->context.SegDs); |
c1748f97 PM |
964 | puts_filtered ("Selector $es\n"); |
965 | display_selector (current_thread->h, | |
baa93fa6 | 966 | current_thread->context.SegEs); |
c1748f97 PM |
967 | puts_filtered ("Selector $ss\n"); |
968 | display_selector (current_thread->h, | |
baa93fa6 | 969 | current_thread->context.SegSs); |
c1748f97 PM |
970 | puts_filtered ("Selector $fs\n"); |
971 | display_selector (current_thread->h, | |
972 | current_thread->context.SegFs); | |
973 | puts_filtered ("Selector $gs\n"); | |
974 | display_selector (current_thread->h, | |
baa93fa6 | 975 | current_thread->context.SegGs); |
c1748f97 PM |
976 | } |
977 | else | |
978 | { | |
979 | int sel; | |
980 | sel = parse_and_eval_long (args); | |
981 | printf_filtered ("Selector \"%s\"\n",args); | |
982 | display_selector (current_thread->h, sel); | |
983 | } | |
984 | } | |
985 | ||
986 | static struct cmd_list_element *info_w32_cmdlist = NULL; | |
987 | ||
988 | static void | |
989 | info_w32_command (char *args, int from_tty) | |
990 | { | |
991 | help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout); | |
992 | } | |
993 | ||
994 | ||
7393af7c | 995 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
4e52d31c | 996 | printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \ |
7393af7c PM |
997 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress) |
998 | ||
36339ecd | 999 | static int |
450005e7 | 1000 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1001 | { |
3cee93ac | 1002 | thread_info *th; |
29fe111d | 1003 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 1004 | |
29fe111d | 1005 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1006 | |
3cee93ac CF |
1007 | /* Record the context of the current thread */ |
1008 | th = thread_rec (current_event.dwThreadId, -1); | |
24e60978 | 1009 | |
29fe111d | 1010 | switch (code) |
24e60978 | 1011 | { |
1ef980b9 | 1012 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c PM |
1013 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
1014 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
10325bc5 | 1015 | #ifdef __CYGWIN__ |
8da8e0b3 | 1016 | { |
a244bdca CF |
1017 | /* See if the access violation happened within the cygwin DLL itself. Cygwin uses |
1018 | a kind of exception handling to deal with passed-in invalid addresses. gdb | |
1019 | should not treat these as real SEGVs since they will be silently handled by | |
1020 | cygwin. A real SEGV will (theoretically) be caught by cygwin later in the process | |
1021 | and will be sent as a cygwin-specific-signal. So, ignore SEGVs if they show up | |
1022 | within the text segment of the DLL itself. */ | |
8da8e0b3 | 1023 | char *fn; |
2c647436 PM |
1024 | bfd_vma addr = (bfd_vma) (uintptr_t) current_event.u.Exception. |
1025 | ExceptionRecord.ExceptionAddress; | |
09280ddf | 1026 | if ((!cygwin_exceptions && (addr >= cygwin_load_start && addr < cygwin_load_end)) |
a244bdca CF |
1027 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
1028 | && strncmp (fn, "KERNEL32!IsBad", strlen ("KERNEL32!IsBad")) == 0)) | |
8da8e0b3 CF |
1029 | return 0; |
1030 | } | |
10325bc5 | 1031 | #endif |
7393af7c PM |
1032 | break; |
1033 | case STATUS_STACK_OVERFLOW: | |
1034 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
1ef980b9 | 1035 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
1036 | break; |
1037 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1038 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
1039 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1040 | break; | |
1041 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1042 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
1043 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1044 | break; | |
1045 | case STATUS_FLOAT_INEXACT_RESULT: | |
1046 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
1047 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1048 | break; | |
1049 | case STATUS_FLOAT_INVALID_OPERATION: | |
1050 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1051 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1052 | break; | |
1053 | case STATUS_FLOAT_OVERFLOW: | |
1054 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1055 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1056 | break; | |
1057 | case STATUS_FLOAT_STACK_CHECK: | |
1058 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1059 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 | 1060 | break; |
3b7c8b74 | 1061 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1062 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1063 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1064 | break; | |
3b7c8b74 | 1065 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1066 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1067 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1068 | break; | |
3b7c8b74 | 1069 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1070 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
3b7c8b74 | 1071 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
3b7c8b74 | 1072 | break; |
7393af7c PM |
1073 | case STATUS_INTEGER_OVERFLOW: |
1074 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1075 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 SC |
1076 | break; |
1077 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1078 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
1ef980b9 SC |
1079 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1080 | break; | |
1081 | case DBG_CONTROL_C: | |
7393af7c | 1082 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
1ef980b9 | 1083 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1084 | break; |
1085 | case DBG_CONTROL_BREAK: | |
7393af7c | 1086 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1087 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
1ef980b9 SC |
1088 | break; |
1089 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1090 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
1ef980b9 SC |
1091 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1092 | break; | |
8227c82d | 1093 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1094 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1095 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1096 | break; | |
1097 | case EXCEPTION_PRIV_INSTRUCTION: | |
1098 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1099 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1100 | break; | |
1101 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1102 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1103 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1104 | break; | |
1ef980b9 | 1105 | default: |
a244bdca | 1106 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1107 | if (current_event.u.Exception.dwFirstChance) |
a244bdca | 1108 | return -1; |
29fe111d | 1109 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n", |
3a4b77d8 | 1110 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
8e860359 | 1111 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress); |
24e60978 | 1112 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 1113 | break; |
24e60978 | 1114 | } |
24e60978 | 1115 | exception_count++; |
7393af7c | 1116 | last_sig = ourstatus->value.sig; |
36339ecd | 1117 | return 1; |
24e60978 SC |
1118 | } |
1119 | ||
3cee93ac CF |
1120 | /* Resume all artificially suspended threads if we are continuing |
1121 | execution */ | |
1122 | static BOOL | |
3ee6f623 | 1123 | win32_continue (DWORD continue_status, int id) |
3cee93ac CF |
1124 | { |
1125 | int i; | |
1126 | thread_info *th; | |
1127 | BOOL res; | |
1128 | ||
7393af7c PM |
1129 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, %s);\n", |
1130 | current_event.dwProcessId, current_event.dwThreadId, | |
dfe7f3ac | 1131 | continue_status == DBG_CONTINUE ? |
7393af7c | 1132 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1133 | |
1134 | for (th = &thread_head; (th = th->next) != NULL;) | |
1135 | if ((id == -1 || id == (int) th->id) | |
1136 | && th->suspended) | |
1137 | { | |
1138 | if (debug_registers_changed) | |
1139 | { | |
1140 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1141 | th->context.Dr0 = dr[0]; | |
1142 | th->context.Dr1 = dr[1]; | |
1143 | th->context.Dr2 = dr[2]; | |
1144 | th->context.Dr3 = dr[3]; | |
1145 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1146 | th->context.Dr7 = dr[7]; | |
1147 | } | |
1148 | if (th->context.ContextFlags) | |
1149 | { | |
1150 | CHECK (SetThreadContext (th->h, &th->context)); | |
1151 | th->context.ContextFlags = 0; | |
1152 | } | |
1153 | if (th->suspended > 0) | |
1154 | (void) ResumeThread (th->h); | |
1155 | th->suspended = 0; | |
1156 | } | |
1157 | ||
0714f9bf SS |
1158 | res = ContinueDebugEvent (current_event.dwProcessId, |
1159 | current_event.dwThreadId, | |
1160 | continue_status); | |
3cee93ac | 1161 | |
fa4ba8da | 1162 | debug_registers_changed = 0; |
3cee93ac CF |
1163 | return res; |
1164 | } | |
1165 | ||
d6dc8049 CF |
1166 | /* Called in pathological case where Windows fails to send a |
1167 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1168 | static DWORD |
5439edaa | 1169 | fake_create_process (void) |
3ade5333 CF |
1170 | { |
1171 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1172 | current_event.dwProcessId); | |
bf25528d CF |
1173 | if (current_process_handle != NULL) |
1174 | open_process_used = 1; | |
1175 | else | |
1176 | { | |
1177 | error (_("OpenProcess call failed, GetLastError = %lud\n"), | |
1178 | GetLastError ()); | |
1179 | /* We can not debug anything in that case. */ | |
1180 | } | |
3ade5333 | 1181 | main_thread_id = current_event.dwThreadId; |
3ee6f623 | 1182 | current_thread = win32_add_thread (main_thread_id, |
3ade5333 CF |
1183 | current_event.u.CreateThread.hThread); |
1184 | return main_thread_id; | |
1185 | } | |
1186 | ||
a244bdca CF |
1187 | static void |
1188 | win32_resume (ptid_t ptid, int step, enum target_signal sig) | |
1189 | { | |
1190 | thread_info *th; | |
1191 | DWORD continue_status = DBG_CONTINUE; | |
1192 | ||
1193 | int pid = PIDGET (ptid); | |
1194 | ||
1195 | if (sig != TARGET_SIGNAL_0) | |
1196 | { | |
1197 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1198 | { | |
1199 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1200 | } | |
1201 | else if (sig == last_sig) | |
1202 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1203 | else | |
1204 | #if 0 | |
1205 | /* This code does not seem to work, because | |
1206 | the kernel does probably not consider changes in the ExceptionRecord | |
1207 | structure when passing the exception to the inferior. | |
1208 | Note that this seems possible in the exception handler itself. */ | |
1209 | { | |
1210 | int i; | |
1211 | for (i = 0; xlate[i].them != -1; i++) | |
1212 | if (xlate[i].us == sig) | |
1213 | { | |
1214 | current_event.u.Exception.ExceptionRecord.ExceptionCode = | |
1215 | xlate[i].them; | |
1216 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1217 | break; | |
1218 | } | |
1219 | if (continue_status == DBG_CONTINUE) | |
1220 | { | |
1221 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1222 | } | |
1223 | } | |
1224 | #endif | |
1225 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", | |
1226 | last_sig)); | |
1227 | } | |
1228 | ||
1229 | last_sig = TARGET_SIGNAL_0; | |
1230 | ||
1231 | DEBUG_EXEC (("gdb: win32_resume (pid=%d, step=%d, sig=%d);\n", | |
1232 | pid, step, sig)); | |
1233 | ||
1234 | /* Get context for currently selected thread */ | |
677d7bec | 1235 | th = thread_rec (PIDGET (inferior_ptid), FALSE); |
a244bdca CF |
1236 | if (th) |
1237 | { | |
1238 | if (step) | |
1239 | { | |
1240 | /* Single step by setting t bit */ | |
3e8c568d UW |
1241 | win32_fetch_inferior_registers (get_current_regcache (), |
1242 | gdbarch_ps_regnum (current_gdbarch)); | |
a244bdca CF |
1243 | th->context.EFlags |= FLAG_TRACE_BIT; |
1244 | } | |
1245 | ||
1246 | if (th->context.ContextFlags) | |
1247 | { | |
1248 | if (debug_registers_changed) | |
1249 | { | |
1250 | th->context.Dr0 = dr[0]; | |
1251 | th->context.Dr1 = dr[1]; | |
1252 | th->context.Dr2 = dr[2]; | |
1253 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1254 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1255 | th->context.Dr7 = dr[7]; |
1256 | } | |
1257 | CHECK (SetThreadContext (th->h, &th->context)); | |
1258 | th->context.ContextFlags = 0; | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | /* Allow continuing with the same signal that interrupted us. | |
1263 | Otherwise complain. */ | |
1264 | ||
1265 | win32_continue (continue_status, pid); | |
1266 | } | |
1267 | ||
8a892701 CF |
1268 | /* Get the next event from the child. Return 1 if the event requires |
1269 | handling by WFI (or whatever). | |
1270 | */ | |
1e37c281 | 1271 | static int |
3ee6f623 | 1272 | get_win32_debug_event (int pid, struct target_waitstatus *ourstatus) |
1e37c281 JM |
1273 | { |
1274 | BOOL debug_event; | |
8a892701 | 1275 | DWORD continue_status, event_code; |
87a45c96 | 1276 | thread_info *th; |
8a892701 | 1277 | static thread_info dummy_thread_info; |
450005e7 | 1278 | int retval = 0; |
a244bdca | 1279 | ptid_t ptid = {-1}; |
1e37c281 | 1280 | |
7393af7c | 1281 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1282 | |
8a892701 | 1283 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1284 | goto out; |
1e37c281 JM |
1285 | |
1286 | event_count++; | |
1287 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1288 | |
8a892701 | 1289 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1290 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1291 | th = NULL; |
a244bdca | 1292 | have_saved_context = 0; |
8a892701 CF |
1293 | |
1294 | switch (event_code) | |
1e37c281 JM |
1295 | { |
1296 | case CREATE_THREAD_DEBUG_EVENT: | |
1297 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1298 | (unsigned) current_event.dwProcessId, |
1299 | (unsigned) current_event.dwThreadId, | |
1300 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1301 | if (saw_create != 1) |
3ade5333 CF |
1302 | { |
1303 | if (!saw_create && attach_flag) | |
1304 | { | |
d6dc8049 CF |
1305 | /* Kludge around a Windows bug where first event is a create |
1306 | thread event. Caused when attached process does not have | |
1307 | a main thread. */ | |
3ade5333 | 1308 | retval = ourstatus->value.related_pid = fake_create_process (); |
bf25528d CF |
1309 | if (retval) |
1310 | saw_create++; | |
3ade5333 CF |
1311 | } |
1312 | break; | |
1313 | } | |
1e37c281 | 1314 | /* Record the existence of this thread */ |
3ee6f623 | 1315 | th = win32_add_thread (current_event.dwThreadId, |
8a892701 | 1316 | current_event.u.CreateThread.hThread); |
450005e7 | 1317 | retval = current_event.dwThreadId; |
1e37c281 JM |
1318 | break; |
1319 | ||
1320 | case EXIT_THREAD_DEBUG_EVENT: | |
1321 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1322 | (unsigned) current_event.dwProcessId, |
1323 | (unsigned) current_event.dwThreadId, | |
1324 | "EXIT_THREAD_DEBUG_EVENT")); | |
87a45c96 CF |
1325 | if (current_event.dwThreadId != main_thread_id) |
1326 | { | |
3ee6f623 | 1327 | win32_delete_thread (current_event.dwThreadId); |
87a45c96 CF |
1328 | th = &dummy_thread_info; |
1329 | } | |
1e37c281 JM |
1330 | break; |
1331 | ||
1332 | case CREATE_PROCESS_DEBUG_EVENT: | |
1333 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1334 | (unsigned) current_event.dwProcessId, |
1335 | (unsigned) current_event.dwThreadId, | |
1336 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1337 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1338 | if (++saw_create != 1) |
bf25528d | 1339 | break; |
1e37c281 | 1340 | |
dfe7f3ac | 1341 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1342 | if (main_thread_id) |
3ee6f623 | 1343 | win32_delete_thread (main_thread_id); |
9d3789f7 | 1344 | main_thread_id = current_event.dwThreadId; |
1e37c281 | 1345 | /* Add the main thread */ |
3ee6f623 | 1346 | th = win32_add_thread (main_thread_id, |
8a892701 | 1347 | current_event.u.CreateProcessInfo.hThread); |
9d3789f7 | 1348 | retval = ourstatus->value.related_pid = current_event.dwThreadId; |
1e37c281 JM |
1349 | break; |
1350 | ||
1351 | case EXIT_PROCESS_DEBUG_EVENT: | |
1352 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1353 | (unsigned) current_event.dwProcessId, |
1354 | (unsigned) current_event.dwThreadId, | |
1355 | "EXIT_PROCESS_DEBUG_EVENT")); | |
dfe7f3ac CF |
1356 | if (saw_create != 1) |
1357 | break; | |
1e37c281 JM |
1358 | ourstatus->kind = TARGET_WAITKIND_EXITED; |
1359 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
9d3789f7 | 1360 | retval = main_thread_id; |
8a892701 | 1361 | break; |
1e37c281 JM |
1362 | |
1363 | case LOAD_DLL_DEBUG_EVENT: | |
1364 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1365 | (unsigned) current_event.dwProcessId, |
1366 | (unsigned) current_event.dwThreadId, | |
1367 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1368 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1369 | if (saw_create != 1) |
1370 | break; | |
8a892701 | 1371 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1372 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1373 | ourstatus->value.integer = 0; | |
9d3789f7 | 1374 | retval = main_thread_id; |
1e37c281 JM |
1375 | break; |
1376 | ||
1377 | case UNLOAD_DLL_DEBUG_EVENT: | |
1378 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1379 | (unsigned) current_event.dwProcessId, |
1380 | (unsigned) current_event.dwThreadId, | |
1381 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1382 | if (saw_create != 1) |
1383 | break; | |
d3ff4a77 | 1384 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1385 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1386 | ourstatus->value.integer = 0; | |
1387 | retval = main_thread_id; | |
d3ff4a77 | 1388 | break; |
1e37c281 JM |
1389 | |
1390 | case EXCEPTION_DEBUG_EVENT: | |
1391 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1392 | (unsigned) current_event.dwProcessId, |
1393 | (unsigned) current_event.dwThreadId, | |
1394 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1395 | if (saw_create != 1) |
1396 | break; | |
a244bdca CF |
1397 | switch (handle_exception (ourstatus)) |
1398 | { | |
1399 | case 0: | |
1400 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1401 | break; | |
1402 | case 1: | |
1403 | retval = current_event.dwThreadId; | |
1404 | break; | |
1405 | case -1: | |
1406 | last_sig = 1; | |
1407 | continue_status = -1; | |
1408 | break; | |
1409 | } | |
1e37c281 JM |
1410 | break; |
1411 | ||
8a892701 | 1412 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
1e37c281 | 1413 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", |
8a892701 CF |
1414 | (unsigned) current_event.dwProcessId, |
1415 | (unsigned) current_event.dwThreadId, | |
1416 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1417 | if (saw_create != 1) |
1418 | break; | |
a244bdca | 1419 | retval = handle_output_debug_string (ourstatus); |
1e37c281 | 1420 | break; |
9d3789f7 | 1421 | |
1e37c281 | 1422 | default: |
dfe7f3ac CF |
1423 | if (saw_create != 1) |
1424 | break; | |
29fe111d CF |
1425 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1426 | (DWORD) current_event.dwProcessId, | |
1427 | (DWORD) current_event.dwThreadId); | |
1428 | printf_unfiltered (" unknown event code %ld\n", | |
1e37c281 JM |
1429 | current_event.dwDebugEventCode); |
1430 | break; | |
1431 | } | |
1432 | ||
dfe7f3ac | 1433 | if (!retval || saw_create != 1) |
a244bdca CF |
1434 | { |
1435 | if (continue_status == -1) | |
1436 | win32_resume (ptid, 0, 1); | |
1437 | else | |
1438 | CHECK (win32_continue (continue_status, -1)); | |
1439 | } | |
450005e7 | 1440 | else |
9d3789f7 | 1441 | { |
39f77062 | 1442 | inferior_ptid = pid_to_ptid (retval); |
3ade5333 | 1443 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1444 | } |
1e37c281 JM |
1445 | |
1446 | out: | |
450005e7 | 1447 | return retval; |
1e37c281 JM |
1448 | } |
1449 | ||
1e37c281 | 1450 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1451 | static ptid_t |
3ee6f623 | 1452 | win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus) |
24e60978 | 1453 | { |
39f77062 KB |
1454 | int pid = PIDGET (ptid); |
1455 | ||
c44537cf CV |
1456 | target_terminal_ours (); |
1457 | ||
24e60978 SC |
1458 | /* We loop when we get a non-standard exception rather than return |
1459 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1460 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 SC |
1461 | the birth or death of threads, which mean that the current thread |
1462 | isn't necessarily what you think it is. */ | |
1463 | ||
1464 | while (1) | |
450005e7 | 1465 | { |
c57918b2 JB |
1466 | int retval; |
1467 | ||
1468 | /* Ignore CTRL+C signals while waiting for a debug event. | |
1469 | FIXME: brobecker/2008-05-20: When the user presses CTRL+C while | |
1470 | the inferior is running, both the inferior and GDB receive the | |
1471 | associated signal. If the inferior receives the signal first | |
1472 | and the delay until GDB receives that signal is sufficiently long, | |
1473 | GDB can sometimes receive the SIGINT after we have unblocked | |
1474 | the CTRL+C handler. This would lead to the debugger to stop | |
1475 | prematurely while handling the new-thread event that comes | |
1476 | with the handling of the SIGINT inside the inferior, and then | |
1477 | stop again immediately when the user tries to resume the execution | |
1478 | in the inferior. This is a classic race, and it would be nice | |
1479 | to find a better solution to that problem. But in the meantime, | |
1480 | the current approach already greatly mitigate this issue. */ | |
1481 | SetConsoleCtrlHandler (NULL, TRUE); | |
1482 | retval = get_win32_debug_event (pid, ourstatus); | |
1483 | SetConsoleCtrlHandler (NULL, FALSE); | |
1484 | ||
450005e7 | 1485 | if (retval) |
39f77062 | 1486 | return pid_to_ptid (retval); |
450005e7 CF |
1487 | else |
1488 | { | |
1489 | int detach = 0; | |
3cee93ac | 1490 | |
98bbd631 AC |
1491 | if (deprecated_ui_loop_hook != NULL) |
1492 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1493 | |
450005e7 | 1494 | if (detach) |
3ee6f623 | 1495 | win32_kill_inferior (); |
450005e7 CF |
1496 | } |
1497 | } | |
24e60978 SC |
1498 | } |
1499 | ||
9d3789f7 | 1500 | static void |
3ee6f623 | 1501 | do_initial_win32_stuff (DWORD pid) |
9d3789f7 CF |
1502 | { |
1503 | extern int stop_after_trap; | |
fa4ba8da | 1504 | int i; |
9d3789f7 | 1505 | |
7393af7c | 1506 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1507 | event_count = 0; |
1508 | exception_count = 0; | |
bf25528d | 1509 | open_process_used = 0; |
fa4ba8da | 1510 | debug_registers_changed = 0; |
dfe7f3ac | 1511 | debug_registers_used = 0; |
fa4ba8da PM |
1512 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1513 | dr[i] = 0; | |
10325bc5 | 1514 | #ifdef __CYGWIN__ |
de1b3c3d | 1515 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1516 | #endif |
9d3789f7 CF |
1517 | current_event.dwProcessId = pid; |
1518 | memset (¤t_event, 0, sizeof (current_event)); | |
3ee6f623 | 1519 | push_target (&win32_ops); |
cb851954 | 1520 | disable_breakpoints_in_shlibs (); |
3ee6f623 | 1521 | win32_clear_solib (); |
9d3789f7 CF |
1522 | clear_proceed_status (); |
1523 | init_wait_for_inferior (); | |
1524 | ||
c44537cf | 1525 | terminal_init_inferior_with_pgrp (pid); |
9d3789f7 CF |
1526 | target_terminal_inferior (); |
1527 | ||
1528 | while (1) | |
1529 | { | |
1530 | stop_after_trap = 1; | |
ae123ec6 | 1531 | wait_for_inferior (0); |
9d3789f7 CF |
1532 | if (stop_signal != TARGET_SIGNAL_TRAP) |
1533 | resume (0, stop_signal); | |
1534 | else | |
1535 | break; | |
1536 | } | |
1537 | stop_after_trap = 0; | |
1538 | return; | |
1539 | } | |
1540 | ||
02cc9f49 CV |
1541 | /* Since Windows XP, detaching from a process is supported by Windows. |
1542 | The following code tries loading the appropriate functions dynamically. | |
1543 | If loading these functions succeeds use them to actually detach from | |
1544 | the inferior process, otherwise behave as usual, pretending that | |
1545 | detach has worked. */ | |
1546 | static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL); | |
1547 | static BOOL WINAPI (*DebugActiveProcessStop)(DWORD); | |
1548 | ||
1549 | static int | |
5ae5f592 | 1550 | has_detach_ability (void) |
02cc9f49 CV |
1551 | { |
1552 | static HMODULE kernel32 = NULL; | |
1553 | ||
1554 | if (!kernel32) | |
1555 | kernel32 = LoadLibrary ("kernel32.dll"); | |
1556 | if (kernel32) | |
1557 | { | |
1558 | if (!DebugSetProcessKillOnExit) | |
1559 | DebugSetProcessKillOnExit = GetProcAddress (kernel32, | |
1560 | "DebugSetProcessKillOnExit"); | |
1561 | if (!DebugActiveProcessStop) | |
1562 | DebugActiveProcessStop = GetProcAddress (kernel32, | |
1563 | "DebugActiveProcessStop"); | |
1564 | if (DebugSetProcessKillOnExit && DebugActiveProcessStop) | |
1565 | return 1; | |
1566 | } | |
1567 | return 0; | |
1568 | } | |
24e60978 | 1569 | |
616a9dc4 CV |
1570 | /* Try to set or remove a user privilege to the current process. Return -1 |
1571 | if that fails, the previous setting of that privilege otherwise. | |
1572 | ||
1573 | This code is copied from the Cygwin source code and rearranged to allow | |
1574 | dynamically loading of the needed symbols from advapi32 which is only | |
1575 | available on NT/2K/XP. */ | |
1576 | static int | |
1577 | set_process_privilege (const char *privilege, BOOL enable) | |
1578 | { | |
1579 | static HMODULE advapi32 = NULL; | |
1580 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
1581 | static BOOL WINAPI (*LookupPrivilegeValue)(LPCSTR, LPCSTR, PLUID); | |
1582 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, | |
1583 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
1584 | ||
1585 | HANDLE token_hdl = NULL; | |
1586 | LUID restore_priv; | |
1587 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1588 | int ret = -1; | |
1589 | DWORD size; | |
1590 | ||
1591 | if (GetVersion () >= 0x80000000) /* No security availbale on 9x/Me */ | |
1592 | return 0; | |
1593 | ||
1594 | if (!advapi32) | |
1595 | { | |
1596 | if (!(advapi32 = LoadLibrary ("advapi32.dll"))) | |
1597 | goto out; | |
1598 | if (!OpenProcessToken) | |
1599 | OpenProcessToken = GetProcAddress (advapi32, "OpenProcessToken"); | |
1600 | if (!LookupPrivilegeValue) | |
1601 | LookupPrivilegeValue = GetProcAddress (advapi32, | |
1602 | "LookupPrivilegeValueA"); | |
1603 | if (!AdjustTokenPrivileges) | |
1604 | AdjustTokenPrivileges = GetProcAddress (advapi32, | |
1605 | "AdjustTokenPrivileges"); | |
1606 | if (!OpenProcessToken || !LookupPrivilegeValue || !AdjustTokenPrivileges) | |
295732ea | 1607 | { |
616a9dc4 CV |
1608 | advapi32 = NULL; |
1609 | goto out; | |
1610 | } | |
1611 | } | |
295732ea | 1612 | |
616a9dc4 CV |
1613 | if (!OpenProcessToken (GetCurrentProcess (), |
1614 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1615 | &token_hdl)) | |
1616 | goto out; | |
1617 | ||
1618 | if (!LookupPrivilegeValue (NULL, privilege, &restore_priv)) | |
1619 | goto out; | |
1620 | ||
1621 | new_priv.PrivilegeCount = 1; | |
1622 | new_priv.Privileges[0].Luid = restore_priv; | |
1623 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1624 | ||
1625 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1626 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1627 | goto out; |
1628 | #if 0 | |
1629 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1630 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
3ee6f623 | 1631 | win32_attach(). */ |
616a9dc4 CV |
1632 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
1633 | be enabled. GetLastError () returns an correct error code, though. */ | |
1634 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) | |
1635 | goto out; | |
1636 | #endif | |
1637 | ||
1638 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1639 | ||
1640 | out: | |
1641 | if (token_hdl) | |
1642 | CloseHandle (token_hdl); | |
1643 | ||
1644 | return ret; | |
1645 | } | |
1646 | ||
02cc9f49 | 1647 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1648 | static void |
3ee6f623 | 1649 | win32_attach (char *args, int from_tty) |
24e60978 SC |
1650 | { |
1651 | BOOL ok; | |
559e75c0 | 1652 | DWORD pid; |
24e60978 SC |
1653 | |
1654 | if (!args) | |
e2e0b3e5 | 1655 | error_no_arg (_("process-id to attach")); |
24e60978 | 1656 | |
616a9dc4 CV |
1657 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1658 | { | |
1659 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
1660 | printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n"); | |
1661 | } | |
1662 | ||
baa93fa6 CF |
1663 | pid = strtoul (args, 0, 0); /* Windows pid */ |
1664 | ||
3ee6f623 | 1665 | win32_init_thread_list (); |
9d3789f7 | 1666 | ok = DebugActiveProcess (pid); |
91a175b3 | 1667 | saw_create = 0; |
24e60978 | 1668 | |
10325bc5 | 1669 | #ifdef __CYGWIN__ |
24e60978 | 1670 | if (!ok) |
baa93fa6 CF |
1671 | { |
1672 | /* Try fall back to Cygwin pid */ | |
1673 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); | |
1674 | ||
1675 | if (pid > 0) | |
1676 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1677 | } |
1678 | #endif | |
baa93fa6 | 1679 | |
10325bc5 PA |
1680 | if (!ok) |
1681 | error (_("Can't attach to process.")); | |
24e60978 | 1682 | |
02cc9f49 | 1683 | if (has_detach_ability ()) |
3ade5333 CF |
1684 | DebugSetProcessKillOnExit (FALSE); |
1685 | ||
1686 | attach_flag = 1; | |
02cc9f49 | 1687 | |
24e60978 SC |
1688 | if (from_tty) |
1689 | { | |
1690 | char *exec_file = (char *) get_exec_file (0); | |
1691 | ||
1692 | if (exec_file) | |
1693 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1694 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1695 | else |
1696 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1697 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1698 | |
1699 | gdb_flush (gdb_stdout); | |
1700 | } | |
1701 | ||
3ee6f623 | 1702 | do_initial_win32_stuff (pid); |
9d3789f7 | 1703 | target_terminal_ours (); |
24e60978 SC |
1704 | } |
1705 | ||
24e60978 | 1706 | static void |
3ee6f623 | 1707 | win32_detach (char *args, int from_tty) |
24e60978 | 1708 | { |
02cc9f49 CV |
1709 | int detached = 1; |
1710 | ||
1711 | if (has_detach_ability ()) | |
1712 | { | |
96998ce7 PA |
1713 | ptid_t ptid = {-1}; |
1714 | win32_resume (ptid, 0, TARGET_SIGNAL_0); | |
1715 | ||
02cc9f49 | 1716 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
3bccec63 | 1717 | { |
8a3fe4f8 | 1718 | error (_("Can't detach process %lu (error %lu)"), |
02cc9f49 CV |
1719 | current_event.dwProcessId, GetLastError ()); |
1720 | detached = 0; | |
3bccec63 | 1721 | } |
02cc9f49 CV |
1722 | DebugSetProcessKillOnExit (FALSE); |
1723 | } | |
1724 | if (detached && from_tty) | |
24e60978 SC |
1725 | { |
1726 | char *exec_file = get_exec_file (0); | |
1727 | if (exec_file == 0) | |
1728 | exec_file = ""; | |
02cc9f49 CV |
1729 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1730 | current_event.dwProcessId); | |
24e60978 SC |
1731 | gdb_flush (gdb_stdout); |
1732 | } | |
39f77062 | 1733 | inferior_ptid = null_ptid; |
3ee6f623 | 1734 | unpush_target (&win32_ops); |
24e60978 SC |
1735 | } |
1736 | ||
3ee6f623 CF |
1737 | static char * |
1738 | win32_pid_to_exec_file (int pid) | |
47216e51 | 1739 | { |
47216e51 | 1740 | static char path[MAX_PATH + 1]; |
10325bc5 PA |
1741 | |
1742 | #ifdef __CYGWIN__ | |
33605d39 CF |
1743 | /* Try to find exe name as symlink target of /proc/<pid>/exe */ |
1744 | int nchars; | |
1745 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
1746 | sprintf (procexe, "/proc/%lu/exe", current_event.dwProcessId); | |
1747 | nchars = readlink (procexe, path, sizeof(path)); | |
1748 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 1749 | { |
33605d39 CF |
1750 | path[nchars] = '\0'; /* Got it */ |
1751 | return path; | |
47216e51 | 1752 | } |
10325bc5 PA |
1753 | #endif |
1754 | ||
33605d39 CF |
1755 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
1756 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ | |
1757 | if (!get_module_name (0, path)) | |
1758 | path[0] = '\0'; | |
1759 | ||
1760 | return path; | |
47216e51 CV |
1761 | } |
1762 | ||
24e60978 SC |
1763 | /* Print status information about what we're accessing. */ |
1764 | ||
1765 | static void | |
3ee6f623 | 1766 | win32_files_info (struct target_ops *ignore) |
24e60978 SC |
1767 | { |
1768 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
39f77062 | 1769 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid)); |
24e60978 SC |
1770 | } |
1771 | ||
24e60978 | 1772 | static void |
3ee6f623 | 1773 | win32_open (char *arg, int from_tty) |
24e60978 | 1774 | { |
8a3fe4f8 | 1775 | error (_("Use the \"run\" command to start a Unix child process.")); |
24e60978 SC |
1776 | } |
1777 | ||
39f77062 | 1778 | /* Start an inferior win32 child process and sets inferior_ptid to its pid. |
24e60978 SC |
1779 | EXEC_FILE is the file to run. |
1780 | ALLARGS is a string containing the arguments to the program. | |
1781 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1782 | ||
24e60978 | 1783 | static void |
8efc5725 | 1784 | win32_create_inferior (char *exec_file, char *allargs, char **in_env, |
c27cda74 | 1785 | int from_tty) |
24e60978 | 1786 | { |
24e60978 SC |
1787 | STARTUPINFO si; |
1788 | PROCESS_INFORMATION pi; | |
24e60978 SC |
1789 | BOOL ret; |
1790 | DWORD flags; | |
eb708f2e | 1791 | char *args; |
dfe7f3ac CF |
1792 | char real_path[MAXPATHLEN]; |
1793 | char *toexec; | |
349b409f CF |
1794 | char shell[MAX_PATH + 1]; /* Path to shell */ |
1795 | const char *sh; | |
2becadee CF |
1796 | int tty; |
1797 | int ostdin, ostdout, ostderr; | |
3cb3b8df | 1798 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
1799 | |
1800 | if (!exec_file) | |
8a3fe4f8 | 1801 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
1802 | |
1803 | memset (&si, 0, sizeof (si)); | |
1804 | si.cb = sizeof (si); | |
1805 | ||
10325bc5 | 1806 | #ifdef __CYGWIN__ |
349b409f | 1807 | if (!useshell) |
dfe7f3ac CF |
1808 | { |
1809 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1810 | cygwin_conv_to_win32_path (exec_file, real_path); | |
1811 | toexec = real_path; | |
1812 | } | |
1813 | else | |
1814 | { | |
349b409f CF |
1815 | char *newallargs; |
1816 | sh = getenv ("SHELL"); | |
1817 | if (!sh) | |
1818 | sh = "/bin/sh"; | |
1819 | cygwin_conv_to_win32_path (sh, shell); | |
1820 | newallargs = alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
1821 | + strlen (allargs) + 2); | |
dfe7f3ac CF |
1822 | sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs); |
1823 | allargs = newallargs; | |
1824 | toexec = shell; | |
1825 | flags = DEBUG_PROCESS; | |
1826 | } | |
10325bc5 PA |
1827 | #else |
1828 | toexec = exec_file; | |
1829 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1830 | #endif | |
eb708f2e | 1831 | |
eeb25b8a PM |
1832 | if (new_group) |
1833 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1834 | ||
1835 | if (new_console) | |
1836 | flags |= CREATE_NEW_CONSOLE; | |
1837 | ||
3ade5333 CF |
1838 | attach_flag = 0; |
1839 | ||
dfe7f3ac CF |
1840 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
1841 | strcpy (args, toexec); | |
eb708f2e SC |
1842 | strcat (args, " "); |
1843 | strcat (args, allargs); | |
1844 | ||
10325bc5 | 1845 | #ifdef __CYGWIN__ |
e88c49c3 | 1846 | /* Prepare the environment vars for CreateProcess. */ |
002c07a9 | 1847 | cygwin_internal (CW_SYNC_WINENV); |
1750a5ef | 1848 | |
2becadee CF |
1849 | if (!inferior_io_terminal) |
1850 | tty = ostdin = ostdout = ostderr = -1; | |
1851 | else | |
1852 | { | |
1853 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
1854 | if (tty < 0) | |
1855 | { | |
1856 | print_sys_errmsg (inferior_io_terminal, errno); | |
1857 | ostdin = ostdout = ostderr = -1; | |
1858 | } | |
1859 | else | |
1860 | { | |
1861 | ostdin = dup (0); | |
1862 | ostdout = dup (1); | |
1863 | ostderr = dup (2); | |
1864 | dup2 (tty, 0); | |
1865 | dup2 (tty, 1); | |
1866 | dup2 (tty, 2); | |
1867 | } | |
1868 | } | |
10325bc5 | 1869 | #endif |
2becadee | 1870 | |
3ee6f623 | 1871 | win32_init_thread_list (); |
1750a5ef | 1872 | ret = CreateProcess (0, |
3a4b77d8 | 1873 | args, /* command line */ |
24e60978 SC |
1874 | NULL, /* Security */ |
1875 | NULL, /* thread */ | |
1876 | TRUE, /* inherit handles */ | |
1877 | flags, /* start flags */ | |
002c07a9 | 1878 | NULL, /* environment */ |
24e60978 SC |
1879 | NULL, /* current directory */ |
1880 | &si, | |
1881 | &pi); | |
10325bc5 PA |
1882 | |
1883 | #ifdef __CYGWIN__ | |
2becadee CF |
1884 | if (tty >= 0) |
1885 | { | |
1886 | close (tty); | |
1887 | dup2 (ostdin, 0); | |
1888 | dup2 (ostdout, 1); | |
1889 | dup2 (ostderr, 2); | |
1890 | close (ostdin); | |
1891 | close (ostdout); | |
1892 | close (ostderr); | |
1893 | } | |
10325bc5 | 1894 | #endif |
2becadee | 1895 | |
24e60978 | 1896 | if (!ret) |
8a3fe4f8 AC |
1897 | error (_("Error creating process %s, (error %d)."), |
1898 | exec_file, (unsigned) GetLastError ()); | |
24e60978 | 1899 | |
c1766e7d PM |
1900 | CloseHandle (pi.hThread); |
1901 | CloseHandle (pi.hProcess); | |
1902 | ||
dfe7f3ac CF |
1903 | if (useshell && shell[0] != '\0') |
1904 | saw_create = -1; | |
1905 | else | |
1906 | saw_create = 0; | |
1907 | ||
3ee6f623 | 1908 | do_initial_win32_stuff (pi.dwProcessId); |
d3a09475 | 1909 | |
3ee6f623 | 1910 | /* win32_continue (DBG_CONTINUE, -1); */ |
24e60978 SC |
1911 | } |
1912 | ||
1913 | static void | |
3ee6f623 | 1914 | win32_mourn_inferior (void) |
24e60978 | 1915 | { |
3ee6f623 | 1916 | (void) win32_continue (DBG_CONTINUE, -1); |
fa4ba8da | 1917 | i386_cleanup_dregs(); |
bf25528d CF |
1918 | if (open_process_used) |
1919 | { | |
1920 | CHECK (CloseHandle (current_process_handle)); | |
1921 | open_process_used = 0; | |
1922 | } | |
3ee6f623 | 1923 | unpush_target (&win32_ops); |
24e60978 SC |
1924 | generic_mourn_inferior (); |
1925 | } | |
1926 | ||
24e60978 SC |
1927 | /* Send a SIGINT to the process group. This acts just like the user typed a |
1928 | ^C on the controlling terminal. */ | |
1929 | ||
b607efe7 | 1930 | static void |
3ee6f623 | 1931 | win32_stop (void) |
24e60978 | 1932 | { |
1ef980b9 | 1933 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 1934 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 1935 | registers_changed (); /* refresh register state */ |
24e60978 SC |
1936 | } |
1937 | ||
3ee6f623 CF |
1938 | static int |
1939 | win32_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, | |
0a65a603 AC |
1940 | int write, struct mem_attrib *mem, |
1941 | struct target_ops *target) | |
24e60978 | 1942 | { |
6f17862b | 1943 | DWORD done = 0; |
24e60978 SC |
1944 | if (write) |
1945 | { | |
29fe111d | 1946 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
2c647436 PM |
1947 | len, (DWORD) (uintptr_t) memaddr)); |
1948 | if (!WriteProcessMemory (current_process_handle, | |
1949 | (LPVOID) (uintptr_t) memaddr, our, | |
6f17862b CF |
1950 | len, &done)) |
1951 | done = 0; | |
2c647436 PM |
1952 | FlushInstructionCache (current_process_handle, |
1953 | (LPCVOID) (uintptr_t) memaddr, len); | |
24e60978 SC |
1954 | } |
1955 | else | |
1956 | { | |
29fe111d | 1957 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
2c647436 PM |
1958 | len, (DWORD) (uintptr_t) memaddr)); |
1959 | if (!ReadProcessMemory (current_process_handle, | |
1960 | (LPCVOID) (uintptr_t) memaddr, our, | |
6f17862b CF |
1961 | len, &done)) |
1962 | done = 0; | |
24e60978 SC |
1963 | } |
1964 | return done; | |
1965 | } | |
1966 | ||
3ee6f623 CF |
1967 | static void |
1968 | win32_kill_inferior (void) | |
24e60978 | 1969 | { |
3cee93ac CF |
1970 | CHECK (TerminateProcess (current_process_handle, 0)); |
1971 | ||
b5edcb45 ILT |
1972 | for (;;) |
1973 | { | |
3ee6f623 | 1974 | if (!win32_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 1975 | break; |
3cee93ac | 1976 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 1977 | break; |
3cee93ac | 1978 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
1979 | break; |
1980 | } | |
1981 | ||
3ee6f623 | 1982 | target_mourn_inferior (); /* or just win32_mourn_inferior? */ |
24e60978 SC |
1983 | } |
1984 | ||
24e60978 | 1985 | static void |
316f2060 | 1986 | win32_prepare_to_store (struct regcache *regcache) |
24e60978 SC |
1987 | { |
1988 | /* Do nothing, since we can store individual regs */ | |
1989 | } | |
1990 | ||
1991 | static int | |
3ee6f623 | 1992 | win32_can_run (void) |
24e60978 SC |
1993 | { |
1994 | return 1; | |
1995 | } | |
1996 | ||
1997 | static void | |
3ee6f623 | 1998 | win32_close (int x) |
24e60978 | 1999 | { |
3ee6f623 | 2000 | DEBUG_EVENTS (("gdb: win32_close, inferior_ptid=%d\n", |
3bccec63 | 2001 | PIDGET (inferior_ptid))); |
24e60978 | 2002 | } |
1ef980b9 | 2003 | |
3ee6f623 CF |
2004 | /* Convert pid to printable format. */ |
2005 | static char * | |
10325bc5 | 2006 | win32_pid_to_str (ptid_t ptid) |
24e60978 | 2007 | { |
3ee6f623 CF |
2008 | static char buf[80]; |
2009 | int pid = PIDGET (ptid); | |
2010 | ||
2011 | if ((DWORD) pid == current_event.dwProcessId) | |
2012 | sprintf (buf, "process %d", pid); | |
2013 | else | |
17526a8c | 2014 | sprintf (buf, "Thread %ld.0x%x", current_event.dwProcessId, pid); |
3ee6f623 CF |
2015 | return buf; |
2016 | } | |
2017 | ||
de1b3c3d PA |
2018 | static LONGEST |
2019 | win32_xfer_shared_libraries (struct target_ops *ops, | |
2020 | enum target_object object, const char *annex, | |
2021 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2022 | ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2023 | { |
de1b3c3d PA |
2024 | struct obstack obstack; |
2025 | const char *buf; | |
2026 | LONGEST len_avail; | |
3cb8e7f6 | 2027 | struct so_list *so; |
3cb8e7f6 | 2028 | |
de1b3c3d PA |
2029 | if (writebuf) |
2030 | return -1; | |
3cb8e7f6 | 2031 | |
de1b3c3d PA |
2032 | obstack_init (&obstack); |
2033 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2034 | for (so = solib_start.next; so; so = so->next) | |
2035 | win32_xfer_shared_library (so->so_name, so->lm_info->load_addr, &obstack); | |
2036 | obstack_grow_str0 (&obstack, "</library-list>\n"); | |
3cb8e7f6 | 2037 | |
de1b3c3d PA |
2038 | buf = obstack_finish (&obstack); |
2039 | len_avail = strlen (buf); | |
2040 | if (offset >= len_avail) | |
2041 | return 0; | |
3cb8e7f6 | 2042 | |
de1b3c3d PA |
2043 | if (len > len_avail - offset) |
2044 | len = len_avail - offset; | |
2045 | memcpy (readbuf, buf + offset, len); | |
3cb8e7f6 | 2046 | |
de1b3c3d PA |
2047 | obstack_free (&obstack, NULL); |
2048 | return len; | |
3cb8e7f6 CF |
2049 | } |
2050 | ||
de1b3c3d PA |
2051 | static LONGEST |
2052 | win32_xfer_partial (struct target_ops *ops, enum target_object object, | |
2053 | const char *annex, gdb_byte *readbuf, | |
2054 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2055 | { |
de1b3c3d | 2056 | switch (object) |
3cb8e7f6 | 2057 | { |
de1b3c3d PA |
2058 | case TARGET_OBJECT_MEMORY: |
2059 | if (readbuf) | |
2060 | return (*ops->deprecated_xfer_memory) (offset, readbuf, | |
244e85c8 | 2061 | len, 0/*read*/, NULL, ops); |
de1b3c3d PA |
2062 | if (writebuf) |
2063 | return (*ops->deprecated_xfer_memory) (offset, (gdb_byte *) writebuf, | |
2064 | len, 1/*write*/, NULL, ops); | |
2065 | return -1; | |
2066 | ||
2067 | case TARGET_OBJECT_LIBRARIES: | |
2068 | return win32_xfer_shared_libraries (ops, object, annex, readbuf, | |
2069 | writebuf, offset, len); | |
3929abe9 | 2070 | |
de1b3c3d PA |
2071 | default: |
2072 | if (ops->beneath != NULL) | |
2073 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2074 | readbuf, writebuf, offset, len); | |
2075 | return -1; | |
3929abe9 | 2076 | } |
02c5aecd CF |
2077 | } |
2078 | ||
3ee6f623 CF |
2079 | static void |
2080 | init_win32_ops (void) | |
2081 | { | |
2082 | win32_ops.to_shortname = "child"; | |
2083 | win32_ops.to_longname = "Win32 child process"; | |
2084 | win32_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2085 | win32_ops.to_open = win32_open; | |
2086 | win32_ops.to_close = win32_close; | |
2087 | win32_ops.to_attach = win32_attach; | |
2088 | win32_ops.to_detach = win32_detach; | |
2089 | win32_ops.to_resume = win32_resume; | |
2090 | win32_ops.to_wait = win32_wait; | |
2091 | win32_ops.to_fetch_registers = win32_fetch_inferior_registers; | |
2092 | win32_ops.to_store_registers = win32_store_inferior_registers; | |
2093 | win32_ops.to_prepare_to_store = win32_prepare_to_store; | |
2094 | win32_ops.deprecated_xfer_memory = win32_xfer_memory; | |
de1b3c3d | 2095 | win32_ops.to_xfer_partial = win32_xfer_partial; |
3ee6f623 CF |
2096 | win32_ops.to_files_info = win32_files_info; |
2097 | win32_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2098 | win32_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2099 | win32_ops.to_terminal_init = terminal_init_inferior; | |
2100 | win32_ops.to_terminal_inferior = terminal_inferior; | |
2101 | win32_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2102 | win32_ops.to_terminal_ours = terminal_ours; | |
2103 | win32_ops.to_terminal_save_ours = terminal_save_ours; | |
2104 | win32_ops.to_terminal_info = child_terminal_info; | |
2105 | win32_ops.to_kill = win32_kill_inferior; | |
2106 | win32_ops.to_create_inferior = win32_create_inferior; | |
2107 | win32_ops.to_mourn_inferior = win32_mourn_inferior; | |
2108 | win32_ops.to_can_run = win32_can_run; | |
2109 | win32_ops.to_thread_alive = win32_win32_thread_alive; | |
10325bc5 | 2110 | win32_ops.to_pid_to_str = win32_pid_to_str; |
3ee6f623 CF |
2111 | win32_ops.to_stop = win32_stop; |
2112 | win32_ops.to_stratum = process_stratum; | |
2113 | win32_ops.to_has_all_memory = 1; | |
2114 | win32_ops.to_has_memory = 1; | |
2115 | win32_ops.to_has_stack = 1; | |
2116 | win32_ops.to_has_registers = 1; | |
2117 | win32_ops.to_has_execution = 1; | |
2118 | win32_ops.to_magic = OPS_MAGIC; | |
2119 | win32_ops.to_pid_to_exec_file = win32_pid_to_exec_file; | |
c719b714 | 2120 | } |
24e60978 | 2121 | |
3929abe9 CF |
2122 | static void |
2123 | set_win32_aliases (char *argv0) | |
2124 | { | |
2125 | add_info_alias ("dll", "sharedlibrary", 1); | |
2126 | } | |
2127 | ||
24e60978 | 2128 | void |
a6b6b089 | 2129 | _initialize_win32_nat (void) |
24e60978 | 2130 | { |
fa58ee11 EZ |
2131 | struct cmd_list_element *c; |
2132 | ||
3ee6f623 | 2133 | init_win32_ops (); |
1ef980b9 | 2134 | |
fa58ee11 | 2135 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2136 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2137 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2138 | |
2139 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2140 | ||
10325bc5 | 2141 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2142 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2143 | Set use of shell to start subprocess."), _("\ | |
2144 | Show use of shell to start subprocess."), NULL, | |
2145 | NULL, | |
2146 | NULL, /* FIXME: i18n: */ | |
2147 | &setlist, &showlist); | |
2148 | ||
09280ddf CF |
2149 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, &cygwin_exceptions, _("\ |
2150 | Break when an exception is detected in the Cygwin DLL itself."), _("\ | |
2151 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2152 | NULL, | |
2153 | NULL, /* FIXME: i18n: */ | |
2154 | &setlist, &showlist); | |
10325bc5 | 2155 | #endif |
09280ddf | 2156 | |
5bf193a2 AC |
2157 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2158 | Set creation of new console when creating child process."), _("\ | |
2159 | Show creation of new console when creating child process."), NULL, | |
2160 | NULL, | |
2161 | NULL, /* FIXME: i18n: */ | |
2162 | &setlist, &showlist); | |
2163 | ||
2164 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2165 | Set creation of new group when creating child process."), _("\ | |
2166 | Show creation of new group when creating child process."), NULL, | |
2167 | NULL, | |
2168 | NULL, /* FIXME: i18n: */ | |
2169 | &setlist, &showlist); | |
2170 | ||
2171 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2172 | Set whether to display execution in child process."), _("\ | |
2173 | Show whether to display execution in child process."), NULL, | |
2174 | NULL, | |
2175 | NULL, /* FIXME: i18n: */ | |
2176 | &setlist, &showlist); | |
2177 | ||
2178 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2179 | Set whether to display kernel events in child process."), _("\ | |
2180 | Show whether to display kernel events in child process."), NULL, | |
2181 | NULL, | |
2182 | NULL, /* FIXME: i18n: */ | |
2183 | &setlist, &showlist); | |
2184 | ||
2185 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2186 | Set whether to display memory accesses in child process."), _("\ | |
2187 | Show whether to display memory accesses in child process."), NULL, | |
2188 | NULL, | |
2189 | NULL, /* FIXME: i18n: */ | |
2190 | &setlist, &showlist); | |
2191 | ||
2192 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2193 | &debug_exceptions, _("\ | |
2194 | Set whether to display kernel exceptions in child process."), _("\ | |
2195 | Show whether to display kernel exceptions in child process."), NULL, | |
2196 | NULL, | |
2197 | NULL, /* FIXME: i18n: */ | |
2198 | &setlist, &showlist); | |
1ef980b9 | 2199 | |
c1748f97 | 2200 | add_prefix_cmd ("w32", class_info, info_w32_command, |
1bedd215 | 2201 | _("Print information specific to Win32 debugging."), |
baa93fa6 | 2202 | &info_w32_cmdlist, "info w32 ", 0, &infolist); |
c1748f97 PM |
2203 | |
2204 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2205 | _("Display selectors infos."), |
c1748f97 | 2206 | &info_w32_cmdlist); |
3ee6f623 | 2207 | add_target (&win32_ops); |
3929abe9 | 2208 | deprecated_init_ui_hook = set_win32_aliases; |
24e60978 | 2209 | } |
3cee93ac | 2210 | |
fa4ba8da PM |
2211 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2212 | ||
2213 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2214 | Here we just store the address in dr array, the registers will be | |
3ee6f623 | 2215 | actually set up when win32_continue is called. */ |
fa4ba8da PM |
2216 | void |
2217 | cygwin_set_dr (int i, CORE_ADDR addr) | |
2218 | { | |
2219 | if (i < 0 || i > 3) | |
2220 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2221 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
fa4ba8da PM |
2222 | dr[i] = (unsigned) addr; |
2223 | debug_registers_changed = 1; | |
2224 | debug_registers_used = 1; | |
2225 | } | |
2226 | ||
2227 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2228 | register. Here we just store the address in D_REGS, the watchpoint | |
3ee6f623 | 2229 | will be actually set up in win32_wait. */ |
fa4ba8da PM |
2230 | void |
2231 | cygwin_set_dr7 (unsigned val) | |
2232 | { | |
2233 | dr[7] = val; | |
2234 | debug_registers_changed = 1; | |
2235 | debug_registers_used = 1; | |
2236 | } | |
2237 | ||
2238 | /* Get the value of the DR6 debug status register from the inferior. | |
2239 | Here we just return the value stored in dr[6] | |
2240 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
2241 | unsigned | |
2242 | cygwin_get_dr6 (void) | |
2243 | { | |
2244 | return dr[6]; | |
2245 | } | |
2246 | ||
3cee93ac CF |
2247 | /* Determine if the thread referenced by "pid" is alive |
2248 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 | |
2249 | it means that the pid has died. Otherwise it is assumed to be alive. */ | |
2250 | static int | |
3ee6f623 | 2251 | win32_win32_thread_alive (ptid_t ptid) |
3cee93ac | 2252 | { |
39f77062 KB |
2253 | int pid = PIDGET (ptid); |
2254 | ||
3a4b77d8 JM |
2255 | return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
2256 | FALSE : TRUE; | |
3cee93ac CF |
2257 | } |
2258 | ||
2a3d5645 CF |
2259 | void |
2260 | _initialize_check_for_gdb_ini (void) | |
2261 | { | |
2262 | char *homedir; | |
2263 | if (inhibit_gdbinit) | |
2264 | return; | |
2265 | ||
2266 | homedir = getenv ("HOME"); | |
2267 | if (homedir) | |
2268 | { | |
2269 | char *p; | |
2270 | char *oldini = (char *) alloca (strlen (homedir) + | |
2271 | sizeof ("/gdb.ini")); | |
2272 | strcpy (oldini, homedir); | |
2273 | p = strchr (oldini, '\0'); | |
2274 | if (p > oldini && p[-1] != '/') | |
2275 | *p++ = '/'; | |
2276 | strcpy (p, "gdb.ini"); | |
2277 | if (access (oldini, 0) == 0) | |
2278 | { | |
2279 | int len = strlen (oldini); | |
2280 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2281 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2282 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2283 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2284 | } |
2285 | } | |
2286 | } | |
33605d39 CF |
2287 | |
2288 | void | |
2289 | _initialize_psapi (void) | |
2290 | { | |
2291 | /* Load optional functions used for retrieving filename information | |
2292 | associated with the currently debugged process or its dlls. */ | |
2293 | if (!psapi_loaded) | |
2294 | { | |
2295 | HMODULE psapi_module_handle; | |
2296 | ||
2297 | psapi_loaded = -1; | |
2298 | ||
2299 | psapi_module_handle = LoadLibrary ("psapi.dll"); | |
2300 | if (psapi_module_handle) | |
2301 | { | |
2302 | psapi_EnumProcessModules = (void *) GetProcAddress (psapi_module_handle, "EnumProcessModules"); | |
2303 | psapi_GetModuleInformation = (void *) GetProcAddress (psapi_module_handle, "GetModuleInformation"); | |
2304 | psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, "GetModuleFileNameExA"); | |
2305 | ||
2306 | if (psapi_EnumProcessModules != NULL | |
2307 | && psapi_GetModuleInformation != NULL | |
2308 | && psapi_GetModuleFileNameExA != NULL) | |
2309 | psapi_loaded = 1; | |
2310 | } | |
2311 | } | |
2312 | ||
2313 | /* This will probably fail on Windows 9x/Me. Let the user know that we're | |
2314 | missing some functionality. */ | |
2315 | if (psapi_loaded < 0) | |
2316 | warning(_("cannot automatically find executable file or library to read symbols. Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
2317 | } |