Commit | Line | Data |
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c906108c | 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. |
c906108c SS |
7 | |
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 |
c906108c SS |
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 |
c906108c SS |
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/>. */ |
c906108c | 22 | |
dfe7f3ac | 23 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
c906108c | 24 | |
c906108c SS |
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" |
c906108c SS |
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> |
c906108c SS |
45 | |
46 | #include "buildsym.h" | |
47 | #include "symfile.h" | |
48 | #include "objfiles.h" | |
de1b3c3d | 49 | #include "gdb_obstack.h" |
c906108c SS |
50 | #include "gdb_string.h" |
51 | #include "gdbthread.h" | |
52 | #include "gdbcmd.h" | |
53 | #include <sys/param.h> | |
c2d11a7d | 54 | #include <unistd.h> |
4646aa9d | 55 | #include "exec.h" |
3ee6f623 | 56 | #include "solist.h" |
3cb8e7f6 | 57 | #include "solib.h" |
de1b3c3d | 58 | #include "xml-support.h" |
c906108c | 59 | |
6c7de422 MK |
60 | #include "i386-tdep.h" |
61 | #include "i387-tdep.h" | |
62 | ||
de1b3c3d PA |
63 | #include "i386-cygwin-tdep.h" |
64 | ||
3ee6f623 | 65 | static struct target_ops win32_ops; |
3ee6f623 | 66 | |
10325bc5 | 67 | #ifdef __CYGWIN__ |
a244bdca CF |
68 | /* The starting and ending address of the cygwin1.dll text segment. */ |
69 | static bfd_vma cygwin_load_start; | |
70 | static bfd_vma cygwin_load_end; | |
10325bc5 | 71 | #endif |
a244bdca CF |
72 | |
73 | static int have_saved_context; /* True if we've saved context from a cygwin signal. */ | |
74 | static CONTEXT saved_context; /* Containes the saved context from a cygwin signal. */ | |
75 | ||
7a292a7a SS |
76 | /* If we're not using the old Cygwin header file set, define the |
77 | following which never should have been in the generic Win32 API | |
78 | headers in the first place since they were our own invention... */ | |
79 | #ifndef _GNU_H_WINDOWS_H | |
9d3789f7 | 80 | enum |
8e860359 CF |
81 | { |
82 | FLAG_TRACE_BIT = 0x100, | |
83 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
84 | }; | |
7a292a7a | 85 | #endif |
8e860359 | 86 | #include <psapi.h> |
7a292a7a | 87 | |
fa4ba8da PM |
88 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
89 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 90 | |
fa4ba8da | 91 | static unsigned dr[8]; |
87a45c96 CF |
92 | static int debug_registers_changed; |
93 | static int debug_registers_used; | |
6537bb24 | 94 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 95 | |
c906108c SS |
96 | /* The string sent by cygwin when it processes a signal. |
97 | FIXME: This should be in a cygwin include file. */ | |
3929abe9 CF |
98 | #ifndef _CYGWIN_SIGNAL_STRING |
99 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
100 | #endif | |
c906108c | 101 | |
29fe111d | 102 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 103 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
104 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
105 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
106 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
c906108c | 107 | |
f9c72d52 | 108 | static void win32_stop (ptid_t); |
3ee6f623 CF |
109 | static int win32_win32_thread_alive (ptid_t); |
110 | static void win32_kill_inferior (void); | |
c906108c | 111 | |
7393af7c PM |
112 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
113 | /* Set if a signal was received from the debugged process */ | |
114 | ||
c906108c | 115 | /* Thread information structure used to track information that is |
6537bb24 | 116 | not available in gdb's thread structure. */ |
c906108c | 117 | typedef struct thread_info_struct |
c5aa993b JM |
118 | { |
119 | struct thread_info_struct *next; | |
120 | DWORD id; | |
121 | HANDLE h; | |
122 | char *name; | |
6537bb24 | 123 | int suspended; |
3ade5333 | 124 | int reload_context; |
c5aa993b | 125 | CONTEXT context; |
c2d11a7d | 126 | STACKFRAME sf; |
8e860359 CF |
127 | } |
128 | thread_info; | |
c2d11a7d | 129 | |
29fe111d | 130 | static thread_info thread_head; |
c906108c | 131 | |
c906108c SS |
132 | /* The process and thread handles for the above context. */ |
133 | ||
134 | static DEBUG_EVENT current_event; /* The current debug event from | |
135 | WaitForDebugEvent */ | |
136 | static HANDLE current_process_handle; /* Currently executing process */ | |
137 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 138 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
c906108c SS |
139 | |
140 | /* Counts of things. */ | |
141 | static int exception_count = 0; | |
142 | static int event_count = 0; | |
dfe7f3ac | 143 | static int saw_create; |
bf25528d | 144 | static int open_process_used = 0; |
c906108c SS |
145 | |
146 | /* User options. */ | |
147 | static int new_console = 0; | |
10325bc5 | 148 | #ifdef __CYGWIN__ |
09280ddf | 149 | static int cygwin_exceptions = 0; |
10325bc5 | 150 | #endif |
c2d11a7d | 151 | static int new_group = 1; |
dfe7f3ac CF |
152 | static int debug_exec = 0; /* show execution */ |
153 | static int debug_events = 0; /* show events from kernel */ | |
154 | static int debug_memory = 0; /* show target memory accesses */ | |
c906108c | 155 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
156 | static int useshell = 0; /* use shell for subprocesses */ |
157 | ||
c906108c SS |
158 | /* This vector maps GDB's idea of a register's number into an address |
159 | in the win32 exception context vector. | |
160 | ||
161 | It also contains the bit mask needed to load the register in question. | |
162 | ||
163 | One day we could read a reg, we could inspect the context we | |
164 | already have loaded, if it doesn't have the bit set that we need, | |
165 | we read that set of registers in using GetThreadContext. If the | |
166 | context already contains what we need, we just unpack it. Then to | |
167 | write a register, first we have to ensure that the context contains | |
168 | the other regs of the group, and then we copy the info in and set | |
169 | out bit. */ | |
170 | ||
171 | #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) | |
172 | static const int mappings[] = | |
173 | { | |
c5aa993b JM |
174 | context_offset (Eax), |
175 | context_offset (Ecx), | |
176 | context_offset (Edx), | |
177 | context_offset (Ebx), | |
178 | context_offset (Esp), | |
179 | context_offset (Ebp), | |
180 | context_offset (Esi), | |
181 | context_offset (Edi), | |
182 | context_offset (Eip), | |
183 | context_offset (EFlags), | |
184 | context_offset (SegCs), | |
185 | context_offset (SegSs), | |
186 | context_offset (SegDs), | |
187 | context_offset (SegEs), | |
188 | context_offset (SegFs), | |
189 | context_offset (SegGs), | |
190 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
191 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
192 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
193 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
194 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
195 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
196 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
197 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
c2d11a7d JM |
198 | context_offset (FloatSave.ControlWord), |
199 | context_offset (FloatSave.StatusWord), | |
200 | context_offset (FloatSave.TagWord), | |
201 | context_offset (FloatSave.ErrorSelector), | |
202 | context_offset (FloatSave.ErrorOffset), | |
203 | context_offset (FloatSave.DataSelector), | |
204 | context_offset (FloatSave.DataOffset), | |
ed9a39eb | 205 | context_offset (FloatSave.ErrorSelector) |
97da3b20 | 206 | /* XMM0-7 */ , |
441532d7 PM |
207 | context_offset (ExtendedRegisters[10*16]), |
208 | context_offset (ExtendedRegisters[11*16]), | |
209 | context_offset (ExtendedRegisters[12*16]), | |
210 | context_offset (ExtendedRegisters[13*16]), | |
211 | context_offset (ExtendedRegisters[14*16]), | |
212 | context_offset (ExtendedRegisters[15*16]), | |
213 | context_offset (ExtendedRegisters[16*16]), | |
214 | context_offset (ExtendedRegisters[17*16]), | |
215 | /* MXCSR */ | |
216 | context_offset (ExtendedRegisters[24]) | |
c906108c SS |
217 | }; |
218 | ||
ed9a39eb JM |
219 | #undef context_offset |
220 | ||
c906108c SS |
221 | /* This vector maps the target's idea of an exception (extracted |
222 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
223 | ||
224 | struct xlate_exception | |
225 | { | |
226 | int them; | |
227 | enum target_signal us; | |
228 | }; | |
229 | ||
230 | static const struct xlate_exception | |
231 | xlate[] = | |
232 | { | |
233 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
234 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, | |
235 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, | |
236 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
237 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
7393af7c | 238 | {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE}, |
c906108c SS |
239 | {-1, -1}}; |
240 | ||
fa4ba8da PM |
241 | static void |
242 | check (BOOL ok, const char *file, int line) | |
243 | { | |
244 | if (!ok) | |
dfe7f3ac | 245 | printf_filtered ("error return %s:%d was %lu\n", file, line, |
fa4ba8da PM |
246 | GetLastError ()); |
247 | } | |
248 | ||
6537bb24 PA |
249 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
250 | then also retrieve the context for this thread. If GET_CONTEXT is | |
251 | negative, then don't suspend the thread. */ | |
c906108c SS |
252 | static thread_info * |
253 | thread_rec (DWORD id, int get_context) | |
254 | { | |
255 | thread_info *th; | |
256 | ||
c5aa993b | 257 | for (th = &thread_head; (th = th->next) != NULL;) |
c906108c SS |
258 | if (th->id == id) |
259 | { | |
6537bb24 | 260 | if (!th->suspended && get_context) |
c906108c | 261 | { |
8a892701 | 262 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
263 | { |
264 | if (SuspendThread (th->h) == (DWORD) -1) | |
265 | { | |
266 | DWORD err = GetLastError (); | |
267 | warning (_("SuspendThread failed. (winerr %d)"), | |
268 | (int) err); | |
269 | return NULL; | |
270 | } | |
271 | th->suspended = 1; | |
272 | } | |
c906108c | 273 | else if (get_context < 0) |
6537bb24 | 274 | th->suspended = -1; |
3ade5333 | 275 | th->reload_context = 1; |
c906108c SS |
276 | } |
277 | return th; | |
278 | } | |
279 | ||
280 | return NULL; | |
281 | } | |
282 | ||
2dc38344 | 283 | /* Add a thread to the thread list. */ |
c906108c | 284 | static thread_info * |
2dc38344 | 285 | win32_add_thread (ptid_t ptid, HANDLE h) |
c906108c SS |
286 | { |
287 | thread_info *th; | |
2dc38344 PA |
288 | DWORD id; |
289 | ||
290 | gdb_assert (ptid_get_tid (ptid) != 0); | |
291 | ||
292 | id = ptid_get_tid (ptid); | |
c906108c SS |
293 | |
294 | if ((th = thread_rec (id, FALSE))) | |
295 | return th; | |
296 | ||
3929abe9 | 297 | th = XZALLOC (thread_info); |
c906108c SS |
298 | th->id = id; |
299 | th->h = h; | |
300 | th->next = thread_head.next; | |
301 | thread_head.next = th; | |
2dc38344 PA |
302 | add_thread (ptid); |
303 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
304 | if (debug_registers_used) |
305 | { | |
306 | /* Only change the value of the debug registers. */ | |
307 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
308 | CHECK (GetThreadContext (th->h, &th->context)); | |
309 | th->context.Dr0 = dr[0]; | |
310 | th->context.Dr1 = dr[1]; | |
311 | th->context.Dr2 = dr[2]; | |
312 | th->context.Dr3 = dr[3]; | |
6537bb24 | 313 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
314 | th->context.Dr7 = dr[7]; |
315 | CHECK (SetThreadContext (th->h, &th->context)); | |
316 | th->context.ContextFlags = 0; | |
317 | } | |
c906108c SS |
318 | return th; |
319 | } | |
320 | ||
321 | /* Clear out any old thread list and reintialize it to a | |
322 | pristine state. */ | |
323 | static void | |
3ee6f623 | 324 | win32_init_thread_list (void) |
c906108c SS |
325 | { |
326 | thread_info *th = &thread_head; | |
327 | ||
3ee6f623 | 328 | DEBUG_EVENTS (("gdb: win32_init_thread_list\n")); |
c906108c SS |
329 | init_thread_list (); |
330 | while (th->next != NULL) | |
331 | { | |
332 | thread_info *here = th->next; | |
333 | th->next = here->next; | |
b8c9b27d | 334 | xfree (here); |
c906108c | 335 | } |
059198c1 | 336 | thread_head.next = NULL; |
c906108c SS |
337 | } |
338 | ||
339 | /* Delete a thread from the list of threads */ | |
340 | static void | |
2dc38344 | 341 | win32_delete_thread (ptid_t ptid) |
c906108c SS |
342 | { |
343 | thread_info *th; | |
2dc38344 PA |
344 | DWORD id; |
345 | ||
346 | gdb_assert (ptid_get_tid (ptid) != 0); | |
347 | ||
348 | id = ptid_get_tid (ptid); | |
c906108c SS |
349 | |
350 | if (info_verbose) | |
2dc38344 PA |
351 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
352 | delete_thread (ptid); | |
c906108c SS |
353 | |
354 | for (th = &thread_head; | |
355 | th->next != NULL && th->next->id != id; | |
356 | th = th->next) | |
357 | continue; | |
358 | ||
359 | if (th->next != NULL) | |
360 | { | |
361 | thread_info *here = th->next; | |
362 | th->next = here->next; | |
b8c9b27d | 363 | xfree (here); |
c906108c SS |
364 | } |
365 | } | |
366 | ||
c906108c | 367 | static void |
56be3814 | 368 | do_win32_fetch_inferior_registers (struct regcache *regcache, int r) |
c906108c | 369 | { |
c2d11a7d | 370 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
371 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
372 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c2d11a7d | 373 | long l; |
6c7de422 | 374 | |
3ade5333 | 375 | if (!current_thread) |
d6dc8049 CF |
376 | return; /* Windows sometimes uses a non-existent thread id in its |
377 | events */ | |
3ade5333 CF |
378 | |
379 | if (current_thread->reload_context) | |
380 | { | |
cb832706 | 381 | #ifdef __COPY_CONTEXT_SIZE |
a244bdca CF |
382 | if (have_saved_context) |
383 | { | |
384 | /* Lie about where the program actually is stopped since cygwin has informed us that | |
385 | we should consider the signal to have occurred at another location which is stored | |
386 | in "saved_context. */ | |
387 | memcpy (¤t_thread->context, &saved_context, __COPY_CONTEXT_SIZE); | |
388 | have_saved_context = 0; | |
389 | } | |
390 | else | |
cb832706 | 391 | #endif |
a244bdca CF |
392 | { |
393 | thread_info *th = current_thread; | |
394 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
395 | GetThreadContext (th->h, &th->context); | |
88616312 PM |
396 | /* Copy dr values from that thread. |
397 | But only if there were not modified since last stop. PR gdb/2388 */ | |
398 | if (!debug_registers_changed) | |
399 | { | |
400 | dr[0] = th->context.Dr0; | |
401 | dr[1] = th->context.Dr1; | |
402 | dr[2] = th->context.Dr2; | |
403 | dr[3] = th->context.Dr3; | |
404 | dr[6] = th->context.Dr6; | |
405 | dr[7] = th->context.Dr7; | |
406 | } | |
a244bdca | 407 | } |
3ade5333 CF |
408 | current_thread->reload_context = 0; |
409 | } | |
410 | ||
20a6ec49 | 411 | if (r == I387_FISEG_REGNUM (tdep)) |
c2d11a7d | 412 | { |
8e860359 | 413 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 414 | regcache_raw_supply (regcache, r, (char *) &l); |
c2d11a7d | 415 | } |
20a6ec49 | 416 | else if (r == I387_FOP_REGNUM (tdep)) |
c2d11a7d | 417 | { |
8e860359 | 418 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 419 | regcache_raw_supply (regcache, r, (char *) &l); |
c2d11a7d JM |
420 | } |
421 | else if (r >= 0) | |
56be3814 | 422 | regcache_raw_supply (regcache, r, context_offset); |
c906108c SS |
423 | else |
424 | { | |
20a6ec49 | 425 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
56be3814 | 426 | do_win32_fetch_inferior_registers (regcache, r); |
c906108c SS |
427 | } |
428 | } | |
429 | ||
430 | static void | |
56be3814 | 431 | win32_fetch_inferior_registers (struct regcache *regcache, int r) |
c906108c | 432 | { |
2dc38344 | 433 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 CF |
434 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
435 | thread id in its events */ | |
3ade5333 | 436 | if (current_thread) |
56be3814 | 437 | do_win32_fetch_inferior_registers (regcache, r); |
c906108c SS |
438 | } |
439 | ||
440 | static void | |
56be3814 | 441 | do_win32_store_inferior_registers (const struct regcache *regcache, int r) |
c906108c | 442 | { |
3ade5333 | 443 | if (!current_thread) |
d6dc8049 | 444 | /* Windows sometimes uses a non-existent thread id in its events */; |
3ade5333 | 445 | else if (r >= 0) |
56be3814 | 446 | regcache_raw_collect (regcache, r, |
822c9732 | 447 | ((char *) ¤t_thread->context) + mappings[r]); |
c906108c SS |
448 | else |
449 | { | |
40a6adc1 | 450 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
56be3814 | 451 | do_win32_store_inferior_registers (regcache, r); |
c906108c SS |
452 | } |
453 | } | |
454 | ||
455 | /* Store a new register value into the current thread context */ | |
456 | static void | |
56be3814 | 457 | win32_store_inferior_registers (struct regcache *regcache, int r) |
c906108c | 458 | { |
2dc38344 | 459 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 CF |
460 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
461 | thread id in its events */ | |
3ade5333 | 462 | if (current_thread) |
56be3814 | 463 | do_win32_store_inferior_registers (regcache, r); |
c906108c SS |
464 | } |
465 | ||
c2d11a7d | 466 | static int psapi_loaded = 0; |
33605d39 CF |
467 | static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, |
468 | LPDWORD); | |
469 | static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, | |
470 | DWORD); | |
471 | static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, | |
472 | DWORD); | |
473 | ||
474 | /* Get the name of a given module at at given base address. If base_address | |
475 | is zero return the first loaded module (which is always the name of the | |
476 | executable). */ | |
3ee6f623 | 477 | static int |
33605d39 | 478 | get_module_name (DWORD base_address, char *dll_name_ret) |
c2d11a7d JM |
479 | { |
480 | DWORD len; | |
481 | MODULEINFO mi; | |
482 | int i; | |
8e860359 | 483 | HMODULE dh_buf[1]; |
33605d39 | 484 | HMODULE *DllHandle = dh_buf; /* Set to temporary storage for initial query */ |
c2d11a7d | 485 | DWORD cbNeeded; |
33605d39 CF |
486 | #ifdef __CYGWIN__ |
487 | char pathbuf[PATH_MAX + 1]; /* Temporary storage prior to converting to | |
488 | posix form */ | |
489 | #else | |
490 | char *pathbuf = dll_name_ret; /* Just copy directly to passed-in arg */ | |
491 | #endif | |
c2d11a7d | 492 | |
33605d39 CF |
493 | /* If psapi_loaded < 0 either psapi.dll is not available or it does not contain |
494 | the needed functions. */ | |
495 | if (psapi_loaded <= 0) | |
496 | goto failed; | |
c2d11a7d JM |
497 | |
498 | cbNeeded = 0; | |
33605d39 CF |
499 | /* Find size of buffer needed to handle list of modules loaded in inferior */ |
500 | if (!psapi_EnumProcessModules (current_process_handle, DllHandle, | |
501 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
c2d11a7d JM |
502 | goto failed; |
503 | ||
33605d39 | 504 | /* Allocate correct amount of space for module list */ |
8e860359 | 505 | DllHandle = (HMODULE *) alloca (cbNeeded); |
c2d11a7d JM |
506 | if (!DllHandle) |
507 | goto failed; | |
508 | ||
33605d39 CF |
509 | /* Get the list of modules */ |
510 | if (!psapi_EnumProcessModules (current_process_handle, DllHandle, cbNeeded, | |
511 | &cbNeeded)) | |
c2d11a7d JM |
512 | goto failed; |
513 | ||
29fe111d | 514 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
c2d11a7d | 515 | { |
33605d39 CF |
516 | /* Get information on this module */ |
517 | if (!psapi_GetModuleInformation (current_process_handle, DllHandle[i], | |
518 | &mi, sizeof (mi))) | |
8a3fe4f8 | 519 | error (_("Can't get module info")); |
c2d11a7d | 520 | |
33605d39 CF |
521 | if (!base_address || (DWORD) (mi.lpBaseOfDll) == base_address) |
522 | { | |
523 | /* Try to find the name of the given module */ | |
524 | len = psapi_GetModuleFileNameExA (current_process_handle, | |
525 | DllHandle[i], pathbuf, MAX_PATH); | |
526 | if (len == 0) | |
527 | error (_("Error getting dll name: %u."), (unsigned) GetLastError ()); | |
528 | #ifdef __CYGWIN__ | |
529 | /* Cygwin prefers that the path be in /x/y/z format */ | |
530 | cygwin_conv_to_full_posix_path (pathbuf, dll_name_ret); | |
531 | #endif | |
532 | return 1; /* success */ | |
533 | } | |
c2d11a7d JM |
534 | } |
535 | ||
536 | failed: | |
537 | dll_name_ret[0] = '\0'; | |
33605d39 | 538 | return 0; /* failure */ |
c2d11a7d JM |
539 | } |
540 | ||
450005e7 CF |
541 | /* Encapsulate the information required in a call to |
542 | symbol_file_add_args */ | |
8a892701 CF |
543 | struct safe_symbol_file_add_args |
544 | { | |
545 | char *name; | |
546 | int from_tty; | |
547 | struct section_addr_info *addrs; | |
548 | int mainline; | |
549 | int flags; | |
7c5c87c0 | 550 | struct ui_file *err, *out; |
8a892701 CF |
551 | struct objfile *ret; |
552 | }; | |
553 | ||
02e423b9 | 554 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 555 | struct lm_info |
02e423b9 | 556 | { |
02e423b9 | 557 | DWORD load_addr; |
3ee6f623 CF |
558 | }; |
559 | ||
560 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 561 | |
450005e7 CF |
562 | /* Call symbol_file_add with stderr redirected. We don't care if there |
563 | are errors. */ | |
8a892701 CF |
564 | static int |
565 | safe_symbol_file_add_stub (void *argv) | |
566 | { | |
3ee6f623 | 567 | #define p ((struct safe_symbol_file_add_args *) argv) |
8a892701 CF |
568 | p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags); |
569 | return !!p->ret; | |
570 | #undef p | |
571 | } | |
572 | ||
450005e7 | 573 | /* Restore gdb's stderr after calling symbol_file_add */ |
8a892701 | 574 | static void |
7c5c87c0 | 575 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 576 | { |
8e860359 | 577 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 578 | gdb_flush (gdb_stderr); |
7c5c87c0 | 579 | gdb_flush (gdb_stdout); |
d3ff4a77 | 580 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 581 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 582 | gdb_stderr = sp->err; |
9d3789f7 | 583 | gdb_stdout = sp->out; |
8e860359 | 584 | #undef sp |
8a892701 CF |
585 | } |
586 | ||
450005e7 | 587 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
588 | static struct objfile * |
589 | safe_symbol_file_add (char *name, int from_tty, | |
590 | struct section_addr_info *addrs, | |
591 | int mainline, int flags) | |
8a892701 CF |
592 | { |
593 | struct safe_symbol_file_add_args p; | |
594 | struct cleanup *cleanup; | |
595 | ||
7c5c87c0 | 596 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 597 | |
7c5c87c0 CF |
598 | p.err = gdb_stderr; |
599 | p.out = gdb_stdout; | |
450005e7 | 600 | gdb_flush (gdb_stderr); |
7c5c87c0 | 601 | gdb_flush (gdb_stdout); |
d3ff4a77 | 602 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 603 | gdb_stdout = ui_file_new (); |
8a892701 CF |
604 | p.name = name; |
605 | p.from_tty = from_tty; | |
606 | p.addrs = addrs; | |
607 | p.mainline = mainline; | |
608 | p.flags = flags; | |
609 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
610 | ||
611 | do_cleanups (cleanup); | |
612 | return p.ret; | |
613 | } | |
614 | ||
de1b3c3d PA |
615 | static struct so_list * |
616 | win32_make_so (const char *name, DWORD load_addr) | |
8e860359 | 617 | { |
3ee6f623 | 618 | struct so_list *so; |
3f8ad85b CF |
619 | char buf[MAX_PATH + 1]; |
620 | char cwd[MAX_PATH + 1]; | |
621 | char *p; | |
622 | WIN32_FIND_DATA w32_fd; | |
623 | HANDLE h = FindFirstFile(name, &w32_fd); | |
5633f842 | 624 | MEMORY_BASIC_INFORMATION m; |
3f8ad85b | 625 | |
6badb179 CF |
626 | if (h == INVALID_HANDLE_VALUE) |
627 | strcpy (buf, name); | |
628 | else | |
3f8ad85b | 629 | { |
c914e0cc CF |
630 | FindClose (h); |
631 | strcpy (buf, name); | |
632 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
633 | { | |
634 | p = strrchr (buf, '\\'); | |
635 | if (p) | |
636 | p[1] = '\0'; | |
637 | SetCurrentDirectory (buf); | |
638 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
639 | SetCurrentDirectory (cwd); | |
640 | } | |
3f8ad85b CF |
641 | } |
642 | ||
3ee6f623 CF |
643 | if (strcasecmp (buf, "ntdll.dll") == 0) |
644 | { | |
645 | GetSystemDirectory (buf, sizeof (buf)); | |
646 | strcat (buf, "\\ntdll.dll"); | |
647 | } | |
3929abe9 | 648 | so = XZALLOC (struct so_list); |
3ee6f623 CF |
649 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); |
650 | so->lm_info->load_addr = load_addr; | |
de1b3c3d | 651 | strcpy (so->so_original_name, name); |
10325bc5 PA |
652 | #ifndef __CYGWIN__ |
653 | strcpy (so->so_name, buf); | |
654 | #else | |
655 | cygwin_conv_to_posix_path (buf, so->so_name); | |
de1b3c3d PA |
656 | /* Record cygwin1.dll .text start/end. */ |
657 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
658 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
659 | { | |
660 | bfd *abfd; | |
661 | asection *text = NULL; | |
662 | CORE_ADDR text_vma; | |
8e860359 | 663 | |
610dd7f9 | 664 | abfd = bfd_openr (so->so_name, "pei-i386"); |
a244bdca | 665 | |
de1b3c3d PA |
666 | if (!abfd) |
667 | return so; | |
668 | ||
669 | if (bfd_check_format (abfd, bfd_object)) | |
670 | text = bfd_get_section_by_name (abfd, ".text"); | |
671 | ||
672 | if (!text) | |
673 | { | |
674 | bfd_close (abfd); | |
675 | return so; | |
676 | } | |
677 | ||
678 | /* The symbols in a dll are offset by 0x1000, which is the the | |
679 | offset from 0 of the first byte in an image - because of the | |
680 | file header and the section alignment. */ | |
681 | cygwin_load_start = load_addr + 0x1000; | |
682 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); | |
683 | ||
684 | bfd_close (abfd); | |
685 | } | |
10325bc5 | 686 | #endif |
de1b3c3d PA |
687 | |
688 | return so; | |
8e860359 CF |
689 | } |
690 | ||
3ee6f623 | 691 | static char * |
dfe7f3ac CF |
692 | get_image_name (HANDLE h, void *address, int unicode) |
693 | { | |
694 | static char buf[(2 * MAX_PATH) + 1]; | |
695 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
696 | char *address_ptr; | |
697 | int len = 0; | |
698 | char b[2]; | |
699 | DWORD done; | |
700 | ||
701 | /* Attempt to read the name of the dll that was detected. | |
702 | This is documented to work only when actively debugging | |
703 | a program. It will not work for attached processes. */ | |
704 | if (address == NULL) | |
705 | return NULL; | |
706 | ||
dfe7f3ac CF |
707 | /* See if we could read the address of a string, and that the |
708 | address isn't null. */ | |
9f476a01 | 709 | if (!ReadProcessMemory (h, address, &address_ptr, sizeof (address_ptr), &done) |
6f17862b | 710 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
711 | return NULL; |
712 | ||
713 | /* Find the length of the string */ | |
6f17862b CF |
714 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
715 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
716 | continue; | |
dfe7f3ac CF |
717 | |
718 | if (!unicode) | |
719 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
720 | else | |
721 | { | |
722 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
723 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
724 | &done); | |
725 | ||
726 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
727 | } | |
728 | ||
729 | return buf; | |
730 | } | |
731 | ||
c906108c SS |
732 | /* Wait for child to do something. Return pid of child, or -1 in case |
733 | of error; store status through argument pointer OURSTATUS. */ | |
c906108c | 734 | static int |
0a65a603 | 735 | handle_load_dll (void *dummy) |
c906108c | 736 | { |
c5aa993b | 737 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
c906108c | 738 | char dll_buf[MAX_PATH + 1]; |
450005e7 | 739 | char *dll_name = NULL; |
c906108c | 740 | |
c5aa993b | 741 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
c906108c | 742 | |
33605d39 | 743 | if (!get_module_name ((DWORD) event->lpBaseOfDll, dll_buf)) |
8e860359 | 744 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
c906108c | 745 | |
c2d11a7d | 746 | dll_name = dll_buf; |
c906108c | 747 | |
dfe7f3ac | 748 | if (*dll_name == '\0') |
de1b3c3d PA |
749 | dll_name = get_image_name (current_process_handle, |
750 | event->lpImageName, event->fUnicode); | |
c906108c SS |
751 | if (!dll_name) |
752 | return 1; | |
753 | ||
de1b3c3d PA |
754 | solib_end->next = win32_make_so (dll_name, (DWORD) event->lpBaseOfDll); |
755 | solib_end = solib_end->next; | |
450005e7 | 756 | |
7488902c PM |
757 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at 0x%lx.\n", solib_end->so_name, |
758 | (DWORD) solib_end->lm_info->load_addr)); | |
759 | ||
450005e7 CF |
760 | return 1; |
761 | } | |
762 | ||
3ee6f623 CF |
763 | static void |
764 | win32_free_so (struct so_list *so) | |
765 | { | |
3ee6f623 CF |
766 | if (so->lm_info) |
767 | xfree (so->lm_info); | |
de1b3c3d | 768 | xfree (so); |
3cb8e7f6 CF |
769 | } |
770 | ||
d3ff4a77 | 771 | static int |
0a65a603 | 772 | handle_unload_dll (void *dummy) |
d3ff4a77 | 773 | { |
de1b3c3d | 774 | DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 775 | struct so_list *so; |
d3ff4a77 CF |
776 | |
777 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 778 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 779 | { |
3ee6f623 | 780 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
781 | so->next = sodel->next; |
782 | if (!so->next) | |
783 | solib_end = so; | |
7488902c PM |
784 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
785 | ||
de1b3c3d | 786 | win32_free_so (sodel); |
3929abe9 | 787 | solib_add (NULL, 0, NULL, auto_solib_add); |
d3ff4a77 CF |
788 | return 1; |
789 | } | |
3929abe9 | 790 | |
8a3fe4f8 | 791 | error (_("Error: dll starting at 0x%lx not found."), (DWORD) lpBaseOfDll); |
d3ff4a77 CF |
792 | |
793 | return 0; | |
794 | } | |
795 | ||
450005e7 | 796 | /* Clear list of loaded DLLs. */ |
3ee6f623 CF |
797 | static void |
798 | win32_clear_solib (void) | |
450005e7 | 799 | { |
450005e7 CF |
800 | solib_start.next = NULL; |
801 | solib_end = &solib_start; | |
450005e7 | 802 | } |
295732ea | 803 | |
450005e7 CF |
804 | /* Load DLL symbol info. */ |
805 | void | |
7470a420 | 806 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 807 | { |
8e860359 | 808 | int n; |
450005e7 | 809 | dont_repeat (); |
8e860359 | 810 | |
450005e7 | 811 | if (args == NULL) |
8a3fe4f8 | 812 | error (_("dll-symbols requires a file name")); |
450005e7 | 813 | |
8e860359 CF |
814 | n = strlen (args); |
815 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
816 | { | |
817 | char *newargs = (char *) alloca (n + 4 + 1); | |
818 | strcpy (newargs, args); | |
819 | strcat (newargs, ".dll"); | |
820 | args = newargs; | |
821 | } | |
822 | ||
7470a420 | 823 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 824 | } |
450005e7 | 825 | |
c906108c SS |
826 | /* Handle DEBUG_STRING output from child process. |
827 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
828 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
829 | static int | |
830 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
831 | { | |
a244bdca CF |
832 | char *s = NULL; |
833 | int retval = 0; | |
c906108c SS |
834 | |
835 | if (!target_read_string | |
2c647436 PM |
836 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
837 | &s, 1024, 0) | |
c906108c | 838 | || !s || !*s) |
a244bdca CF |
839 | /* nothing to do */; |
840 | else if (strncmp (s, _CYGWIN_SIGNAL_STRING, sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0) | |
c906108c | 841 | { |
10325bc5 | 842 | #ifdef __CYGWIN__ |
ed9a39eb | 843 | if (strncmp (s, "cYg", 3) != 0) |
10325bc5 | 844 | #endif |
8a3fe4f8 | 845 | warning (("%s"), s); |
c906108c | 846 | } |
cb832706 | 847 | #ifdef __COPY_CONTEXT_SIZE |
ed9a39eb | 848 | else |
c906108c | 849 | { |
a244bdca CF |
850 | /* Got a cygwin signal marker. A cygwin signal is followed by the signal number |
851 | itself and then optionally followed by the thread id and address to saved context | |
852 | within the DLL. If these are supplied, then the given thread is assumed to have | |
853 | issued the signal and the context from the thread is assumed to be stored at the | |
854 | given address in the inferior. Tell gdb to treat this like a real signal. */ | |
c906108c | 855 | char *p; |
3929abe9 | 856 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
a244bdca | 857 | int gotasig = target_signal_from_host (sig); |
7a292a7a SS |
858 | ourstatus->value.sig = gotasig; |
859 | if (gotasig) | |
a244bdca CF |
860 | { |
861 | LPCVOID x; | |
862 | DWORD n; | |
863 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
864 | retval = strtoul (p, &p, 0); | |
865 | if (!retval) | |
866 | retval = main_thread_id; | |
867 | else if ((x = (LPCVOID) strtoul (p, &p, 0)) | |
868 | && ReadProcessMemory (current_process_handle, x, | |
869 | &saved_context, __COPY_CONTEXT_SIZE, &n) | |
870 | && n == __COPY_CONTEXT_SIZE) | |
871 | have_saved_context = 1; | |
872 | current_event.dwThreadId = retval; | |
873 | } | |
c906108c | 874 | } |
cb832706 | 875 | #endif |
c906108c | 876 | |
a244bdca CF |
877 | if (s) |
878 | xfree (s); | |
879 | return retval; | |
c906108c SS |
880 | } |
881 | ||
c1748f97 PM |
882 | static int |
883 | display_selector (HANDLE thread, DWORD sel) | |
884 | { | |
885 | LDT_ENTRY info; | |
886 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
887 | { | |
888 | int base, limit; | |
889 | printf_filtered ("0x%03lx: ", sel); | |
890 | if (!info.HighWord.Bits.Pres) | |
baa93fa6 CF |
891 | { |
892 | puts_filtered ("Segment not present\n"); | |
893 | return 0; | |
894 | } | |
c1748f97 PM |
895 | base = (info.HighWord.Bits.BaseHi << 24) + |
896 | (info.HighWord.Bits.BaseMid << 16) | |
897 | + info.BaseLow; | |
898 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
899 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 900 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
901 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
902 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 903 | puts_filtered(" 32-bit "); |
c1748f97 | 904 | else |
baa93fa6 | 905 | puts_filtered(" 16-bit "); |
c1748f97 PM |
906 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
907 | { | |
908 | case 0: | |
baa93fa6 CF |
909 | puts_filtered ("Data (Read-Only, Exp-up"); |
910 | break; | |
c1748f97 | 911 | case 1: |
baa93fa6 CF |
912 | puts_filtered ("Data (Read/Write, Exp-up"); |
913 | break; | |
c1748f97 | 914 | case 2: |
baa93fa6 CF |
915 | puts_filtered ("Unused segment ("); |
916 | break; | |
c1748f97 | 917 | case 3: |
baa93fa6 CF |
918 | puts_filtered ("Data (Read/Write, Exp-down"); |
919 | break; | |
c1748f97 | 920 | case 4: |
baa93fa6 CF |
921 | puts_filtered ("Code (Exec-Only, N.Conf"); |
922 | break; | |
c1748f97 | 923 | case 5: |
baa93fa6 | 924 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
925 | break; |
926 | case 6: | |
baa93fa6 | 927 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
928 | break; |
929 | case 7: | |
baa93fa6 | 930 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
931 | break; |
932 | default: | |
933 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
934 | } | |
935 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 936 | puts_filtered(", N.Acc"); |
c1748f97 PM |
937 | puts_filtered (")\n"); |
938 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
939 | puts_filtered("System selector "); | |
940 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
941 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 942 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
943 | else |
944 | puts_filtered ("Byte granular.\n"); | |
945 | return 1; | |
946 | } | |
947 | else | |
948 | { | |
949 | printf_filtered ("Invalid selector 0x%lx.\n",sel); | |
950 | return 0; | |
951 | } | |
952 | } | |
953 | ||
954 | static void | |
955 | display_selectors (char * args, int from_tty) | |
956 | { | |
957 | if (!current_thread) | |
958 | { | |
959 | puts_filtered ("Impossible to display selectors now.\n"); | |
960 | return; | |
961 | } | |
962 | if (!args) | |
963 | { | |
964 | ||
965 | puts_filtered ("Selector $cs\n"); | |
966 | display_selector (current_thread->h, | |
baa93fa6 | 967 | current_thread->context.SegCs); |
c1748f97 PM |
968 | puts_filtered ("Selector $ds\n"); |
969 | display_selector (current_thread->h, | |
baa93fa6 | 970 | current_thread->context.SegDs); |
c1748f97 PM |
971 | puts_filtered ("Selector $es\n"); |
972 | display_selector (current_thread->h, | |
baa93fa6 | 973 | current_thread->context.SegEs); |
c1748f97 PM |
974 | puts_filtered ("Selector $ss\n"); |
975 | display_selector (current_thread->h, | |
baa93fa6 | 976 | current_thread->context.SegSs); |
c1748f97 PM |
977 | puts_filtered ("Selector $fs\n"); |
978 | display_selector (current_thread->h, | |
979 | current_thread->context.SegFs); | |
980 | puts_filtered ("Selector $gs\n"); | |
981 | display_selector (current_thread->h, | |
baa93fa6 | 982 | current_thread->context.SegGs); |
c1748f97 PM |
983 | } |
984 | else | |
985 | { | |
986 | int sel; | |
987 | sel = parse_and_eval_long (args); | |
988 | printf_filtered ("Selector \"%s\"\n",args); | |
989 | display_selector (current_thread->h, sel); | |
990 | } | |
991 | } | |
992 | ||
993 | static struct cmd_list_element *info_w32_cmdlist = NULL; | |
994 | ||
995 | static void | |
996 | info_w32_command (char *args, int from_tty) | |
997 | { | |
998 | help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout); | |
999 | } | |
1000 | ||
1001 | ||
7393af7c | 1002 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
4e52d31c | 1003 | printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \ |
7393af7c PM |
1004 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress) |
1005 | ||
c906108c | 1006 | static int |
450005e7 | 1007 | handle_exception (struct target_waitstatus *ourstatus) |
c906108c | 1008 | { |
c906108c | 1009 | thread_info *th; |
29fe111d | 1010 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
c906108c | 1011 | |
29fe111d | 1012 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1013 | |
c906108c SS |
1014 | /* Record the context of the current thread */ |
1015 | th = thread_rec (current_event.dwThreadId, -1); | |
1016 | ||
29fe111d | 1017 | switch (code) |
c906108c SS |
1018 | { |
1019 | case EXCEPTION_ACCESS_VIOLATION: | |
7393af7c PM |
1020 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
1021 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
10325bc5 | 1022 | #ifdef __CYGWIN__ |
8da8e0b3 | 1023 | { |
a244bdca CF |
1024 | /* See if the access violation happened within the cygwin DLL itself. Cygwin uses |
1025 | a kind of exception handling to deal with passed-in invalid addresses. gdb | |
1026 | should not treat these as real SEGVs since they will be silently handled by | |
1027 | cygwin. A real SEGV will (theoretically) be caught by cygwin later in the process | |
1028 | and will be sent as a cygwin-specific-signal. So, ignore SEGVs if they show up | |
1029 | within the text segment of the DLL itself. */ | |
8da8e0b3 | 1030 | char *fn; |
2c647436 PM |
1031 | bfd_vma addr = (bfd_vma) (uintptr_t) current_event.u.Exception. |
1032 | ExceptionRecord.ExceptionAddress; | |
09280ddf | 1033 | if ((!cygwin_exceptions && (addr >= cygwin_load_start && addr < cygwin_load_end)) |
a244bdca CF |
1034 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
1035 | && strncmp (fn, "KERNEL32!IsBad", strlen ("KERNEL32!IsBad")) == 0)) | |
8da8e0b3 CF |
1036 | return 0; |
1037 | } | |
10325bc5 | 1038 | #endif |
7393af7c PM |
1039 | break; |
1040 | case STATUS_STACK_OVERFLOW: | |
1041 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
c906108c | 1042 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
1043 | break; |
1044 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1045 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
1046 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1047 | break; | |
1048 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1049 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
1050 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1051 | break; | |
1052 | case STATUS_FLOAT_INEXACT_RESULT: | |
1053 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
1054 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1055 | break; | |
1056 | case STATUS_FLOAT_INVALID_OPERATION: | |
1057 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1058 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1059 | break; | |
1060 | case STATUS_FLOAT_OVERFLOW: | |
1061 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1062 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1063 | break; | |
1064 | case STATUS_FLOAT_STACK_CHECK: | |
1065 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1066 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
c906108c | 1067 | break; |
0d06e24b | 1068 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1069 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1070 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1071 | break; | |
0d06e24b | 1072 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1073 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1074 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1075 | break; | |
0d06e24b | 1076 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1077 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
0d06e24b | 1078 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
0d06e24b | 1079 | break; |
7393af7c PM |
1080 | case STATUS_INTEGER_OVERFLOW: |
1081 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1082 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
c906108c SS |
1083 | break; |
1084 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1085 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
c906108c SS |
1086 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1087 | break; | |
1088 | case DBG_CONTROL_C: | |
7393af7c | 1089 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
c906108c | 1090 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1091 | break; |
1092 | case DBG_CONTROL_BREAK: | |
7393af7c | 1093 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1094 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
c906108c SS |
1095 | break; |
1096 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1097 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
c906108c SS |
1098 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1099 | break; | |
8227c82d | 1100 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1101 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1102 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1103 | break; | |
1104 | case EXCEPTION_PRIV_INSTRUCTION: | |
1105 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1106 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1107 | break; | |
1108 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1109 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1110 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1111 | break; | |
c906108c | 1112 | default: |
a244bdca | 1113 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1114 | if (current_event.u.Exception.dwFirstChance) |
a244bdca | 1115 | return -1; |
29fe111d | 1116 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n", |
c5aa993b | 1117 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
8e860359 | 1118 | (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress); |
c906108c SS |
1119 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1120 | break; | |
1121 | } | |
1122 | exception_count++; | |
7393af7c | 1123 | last_sig = ourstatus->value.sig; |
c906108c SS |
1124 | return 1; |
1125 | } | |
1126 | ||
1127 | /* Resume all artificially suspended threads if we are continuing | |
1128 | execution */ | |
1129 | static BOOL | |
3ee6f623 | 1130 | win32_continue (DWORD continue_status, int id) |
c906108c SS |
1131 | { |
1132 | int i; | |
1133 | thread_info *th; | |
1134 | BOOL res; | |
1135 | ||
7393af7c PM |
1136 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, %s);\n", |
1137 | current_event.dwProcessId, current_event.dwThreadId, | |
dfe7f3ac | 1138 | continue_status == DBG_CONTINUE ? |
7393af7c | 1139 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1140 | |
1141 | for (th = &thread_head; (th = th->next) != NULL;) | |
1142 | if ((id == -1 || id == (int) th->id) | |
1143 | && th->suspended) | |
1144 | { | |
1145 | if (debug_registers_changed) | |
1146 | { | |
1147 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1148 | th->context.Dr0 = dr[0]; | |
1149 | th->context.Dr1 = dr[1]; | |
1150 | th->context.Dr2 = dr[2]; | |
1151 | th->context.Dr3 = dr[3]; | |
1152 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1153 | th->context.Dr7 = dr[7]; | |
1154 | } | |
1155 | if (th->context.ContextFlags) | |
1156 | { | |
1157 | CHECK (SetThreadContext (th->h, &th->context)); | |
1158 | th->context.ContextFlags = 0; | |
1159 | } | |
1160 | if (th->suspended > 0) | |
1161 | (void) ResumeThread (th->h); | |
1162 | th->suspended = 0; | |
1163 | } | |
1164 | ||
7a292a7a SS |
1165 | res = ContinueDebugEvent (current_event.dwProcessId, |
1166 | current_event.dwThreadId, | |
1167 | continue_status); | |
c906108c | 1168 | |
fa4ba8da | 1169 | debug_registers_changed = 0; |
c906108c SS |
1170 | return res; |
1171 | } | |
1172 | ||
d6dc8049 CF |
1173 | /* Called in pathological case where Windows fails to send a |
1174 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1175 | static DWORD |
5439edaa | 1176 | fake_create_process (void) |
3ade5333 CF |
1177 | { |
1178 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1179 | current_event.dwProcessId); | |
bf25528d CF |
1180 | if (current_process_handle != NULL) |
1181 | open_process_used = 1; | |
1182 | else | |
1183 | { | |
1184 | error (_("OpenProcess call failed, GetLastError = %lud\n"), | |
1185 | GetLastError ()); | |
1186 | /* We can not debug anything in that case. */ | |
1187 | } | |
3ade5333 | 1188 | main_thread_id = current_event.dwThreadId; |
2dc38344 PA |
1189 | current_thread = win32_add_thread (ptid_build (current_event.dwProcessId, 0, |
1190 | current_event.dwThreadId), | |
3ade5333 CF |
1191 | current_event.u.CreateThread.hThread); |
1192 | return main_thread_id; | |
1193 | } | |
1194 | ||
a244bdca CF |
1195 | static void |
1196 | win32_resume (ptid_t ptid, int step, enum target_signal sig) | |
1197 | { | |
1198 | thread_info *th; | |
1199 | DWORD continue_status = DBG_CONTINUE; | |
1200 | ||
2dc38344 PA |
1201 | /* A specific PTID means `step only this thread id'. */ |
1202 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1203 | ||
1204 | /* If we're continuing all threads, it's the current inferior that | |
1205 | should be handled specially. */ | |
1206 | if (resume_all) | |
1207 | ptid = inferior_ptid; | |
a244bdca CF |
1208 | |
1209 | if (sig != TARGET_SIGNAL_0) | |
1210 | { | |
1211 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1212 | { | |
1213 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1214 | } | |
1215 | else if (sig == last_sig) | |
1216 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1217 | else | |
1218 | #if 0 | |
1219 | /* This code does not seem to work, because | |
1220 | the kernel does probably not consider changes in the ExceptionRecord | |
1221 | structure when passing the exception to the inferior. | |
1222 | Note that this seems possible in the exception handler itself. */ | |
1223 | { | |
1224 | int i; | |
1225 | for (i = 0; xlate[i].them != -1; i++) | |
1226 | if (xlate[i].us == sig) | |
1227 | { | |
1228 | current_event.u.Exception.ExceptionRecord.ExceptionCode = | |
1229 | xlate[i].them; | |
1230 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1231 | break; | |
1232 | } | |
1233 | if (continue_status == DBG_CONTINUE) | |
1234 | { | |
1235 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1236 | } | |
1237 | } | |
1238 | #endif | |
1239 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", | |
1240 | last_sig)); | |
1241 | } | |
1242 | ||
1243 | last_sig = TARGET_SIGNAL_0; | |
1244 | ||
2dc38344 PA |
1245 | DEBUG_EXEC (("gdb: win32_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
1246 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); | |
a244bdca CF |
1247 | |
1248 | /* Get context for currently selected thread */ | |
2dc38344 | 1249 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1250 | if (th) |
1251 | { | |
1252 | if (step) | |
1253 | { | |
1254 | /* Single step by setting t bit */ | |
3e8c568d UW |
1255 | win32_fetch_inferior_registers (get_current_regcache (), |
1256 | gdbarch_ps_regnum (current_gdbarch)); | |
a244bdca CF |
1257 | th->context.EFlags |= FLAG_TRACE_BIT; |
1258 | } | |
1259 | ||
1260 | if (th->context.ContextFlags) | |
1261 | { | |
1262 | if (debug_registers_changed) | |
1263 | { | |
1264 | th->context.Dr0 = dr[0]; | |
1265 | th->context.Dr1 = dr[1]; | |
1266 | th->context.Dr2 = dr[2]; | |
1267 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1268 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1269 | th->context.Dr7 = dr[7]; |
1270 | } | |
1271 | CHECK (SetThreadContext (th->h, &th->context)); | |
1272 | th->context.ContextFlags = 0; | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | /* Allow continuing with the same signal that interrupted us. | |
1277 | Otherwise complain. */ | |
1278 | ||
2dc38344 PA |
1279 | if (resume_all) |
1280 | win32_continue (continue_status, -1); | |
1281 | else | |
1282 | win32_continue (continue_status, ptid_get_tid (ptid)); | |
a244bdca CF |
1283 | } |
1284 | ||
8a892701 CF |
1285 | /* Get the next event from the child. Return 1 if the event requires |
1286 | handling by WFI (or whatever). | |
1287 | */ | |
c2d11a7d | 1288 | static int |
3ee6f623 | 1289 | get_win32_debug_event (int pid, struct target_waitstatus *ourstatus) |
c2d11a7d JM |
1290 | { |
1291 | BOOL debug_event; | |
8a892701 | 1292 | DWORD continue_status, event_code; |
87a45c96 | 1293 | thread_info *th; |
8a892701 | 1294 | static thread_info dummy_thread_info; |
450005e7 | 1295 | int retval = 0; |
c2d11a7d | 1296 | |
7393af7c | 1297 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1298 | |
8a892701 | 1299 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1300 | goto out; |
c2d11a7d JM |
1301 | |
1302 | event_count++; | |
1303 | continue_status = DBG_CONTINUE; | |
c2d11a7d | 1304 | |
8a892701 | 1305 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1306 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1307 | th = NULL; |
a244bdca | 1308 | have_saved_context = 0; |
8a892701 CF |
1309 | |
1310 | switch (event_code) | |
c2d11a7d JM |
1311 | { |
1312 | case CREATE_THREAD_DEBUG_EVENT: | |
1313 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1314 | (unsigned) current_event.dwProcessId, |
1315 | (unsigned) current_event.dwThreadId, | |
1316 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1317 | if (saw_create != 1) |
3ade5333 | 1318 | { |
181e7f93 PA |
1319 | struct inferior *inf; |
1320 | inf = find_inferior_pid (current_event.dwProcessId); | |
1321 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1322 | { |
d6dc8049 CF |
1323 | /* Kludge around a Windows bug where first event is a create |
1324 | thread event. Caused when attached process does not have | |
1325 | a main thread. */ | |
3a3e9ee3 | 1326 | retval = fake_create_process (); |
181e7f93 PA |
1327 | if (retval) |
1328 | saw_create++; | |
3ade5333 CF |
1329 | } |
1330 | break; | |
1331 | } | |
c2d11a7d | 1332 | /* Record the existence of this thread */ |
450005e7 | 1333 | retval = current_event.dwThreadId; |
2dc38344 PA |
1334 | th = win32_add_thread (ptid_build (current_event.dwProcessId, 0, |
1335 | current_event.dwThreadId), | |
1336 | current_event.u.CreateThread.hThread); | |
c2d11a7d JM |
1337 | break; |
1338 | ||
1339 | case EXIT_THREAD_DEBUG_EVENT: | |
1340 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1341 | (unsigned) current_event.dwProcessId, |
1342 | (unsigned) current_event.dwThreadId, | |
1343 | "EXIT_THREAD_DEBUG_EVENT")); | |
87a45c96 CF |
1344 | if (current_event.dwThreadId != main_thread_id) |
1345 | { | |
2dc38344 PA |
1346 | win32_delete_thread (ptid_build (current_event.dwProcessId, 0, |
1347 | current_event.dwThreadId)); | |
87a45c96 CF |
1348 | th = &dummy_thread_info; |
1349 | } | |
c2d11a7d JM |
1350 | break; |
1351 | ||
1352 | case CREATE_PROCESS_DEBUG_EVENT: | |
1353 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1354 | (unsigned) current_event.dwProcessId, |
1355 | (unsigned) current_event.dwThreadId, | |
1356 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1357 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1358 | if (++saw_create != 1) |
bf25528d | 1359 | break; |
c2d11a7d | 1360 | |
dfe7f3ac | 1361 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1362 | if (main_thread_id) |
2dc38344 PA |
1363 | win32_delete_thread (ptid_build (current_event.dwProcessId, 0, |
1364 | main_thread_id)); | |
9d3789f7 | 1365 | main_thread_id = current_event.dwThreadId; |
c2d11a7d | 1366 | /* Add the main thread */ |
2dc38344 PA |
1367 | th = win32_add_thread (ptid_build (current_event.dwProcessId, 0, |
1368 | current_event.dwThreadId), | |
8a892701 | 1369 | current_event.u.CreateProcessInfo.hThread); |
3a3e9ee3 | 1370 | retval = current_event.dwThreadId; |
c2d11a7d JM |
1371 | break; |
1372 | ||
1373 | case EXIT_PROCESS_DEBUG_EVENT: | |
1374 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1375 | (unsigned) current_event.dwProcessId, |
1376 | (unsigned) current_event.dwThreadId, | |
1377 | "EXIT_PROCESS_DEBUG_EVENT")); | |
dfe7f3ac CF |
1378 | if (saw_create != 1) |
1379 | break; | |
c2d11a7d JM |
1380 | ourstatus->kind = TARGET_WAITKIND_EXITED; |
1381 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
9d3789f7 | 1382 | retval = main_thread_id; |
8a892701 | 1383 | break; |
c2d11a7d JM |
1384 | |
1385 | case LOAD_DLL_DEBUG_EVENT: | |
1386 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1387 | (unsigned) current_event.dwProcessId, |
1388 | (unsigned) current_event.dwThreadId, | |
1389 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1390 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1391 | if (saw_create != 1) |
1392 | break; | |
8a892701 | 1393 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1394 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1395 | ourstatus->value.integer = 0; | |
9d3789f7 | 1396 | retval = main_thread_id; |
c2d11a7d JM |
1397 | break; |
1398 | ||
1399 | case UNLOAD_DLL_DEBUG_EVENT: | |
1400 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1401 | (unsigned) current_event.dwProcessId, |
1402 | (unsigned) current_event.dwThreadId, | |
1403 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1404 | if (saw_create != 1) |
1405 | break; | |
d3ff4a77 | 1406 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1407 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1408 | ourstatus->value.integer = 0; | |
1409 | retval = main_thread_id; | |
d3ff4a77 | 1410 | break; |
c2d11a7d JM |
1411 | |
1412 | case EXCEPTION_DEBUG_EVENT: | |
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 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1417 | if (saw_create != 1) |
1418 | break; | |
a244bdca CF |
1419 | switch (handle_exception (ourstatus)) |
1420 | { | |
1421 | case 0: | |
1422 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1423 | break; | |
1424 | case 1: | |
1425 | retval = current_event.dwThreadId; | |
1426 | break; | |
1427 | case -1: | |
1428 | last_sig = 1; | |
1429 | continue_status = -1; | |
1430 | break; | |
1431 | } | |
c2d11a7d JM |
1432 | break; |
1433 | ||
8a892701 | 1434 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
c2d11a7d | 1435 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", |
8a892701 CF |
1436 | (unsigned) current_event.dwProcessId, |
1437 | (unsigned) current_event.dwThreadId, | |
1438 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1439 | if (saw_create != 1) |
1440 | break; | |
a244bdca | 1441 | retval = handle_output_debug_string (ourstatus); |
c2d11a7d | 1442 | break; |
9d3789f7 | 1443 | |
c2d11a7d | 1444 | default: |
dfe7f3ac CF |
1445 | if (saw_create != 1) |
1446 | break; | |
29fe111d CF |
1447 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1448 | (DWORD) current_event.dwProcessId, | |
1449 | (DWORD) current_event.dwThreadId); | |
1450 | printf_unfiltered (" unknown event code %ld\n", | |
c2d11a7d JM |
1451 | current_event.dwDebugEventCode); |
1452 | break; | |
1453 | } | |
1454 | ||
dfe7f3ac | 1455 | if (!retval || saw_create != 1) |
a244bdca CF |
1456 | { |
1457 | if (continue_status == -1) | |
2dc38344 | 1458 | win32_resume (minus_one_ptid, 0, 1); |
a244bdca CF |
1459 | else |
1460 | CHECK (win32_continue (continue_status, -1)); | |
1461 | } | |
450005e7 | 1462 | else |
9d3789f7 | 1463 | { |
2dc38344 PA |
1464 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
1465 | retval); | |
3ade5333 | 1466 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1467 | } |
c2d11a7d JM |
1468 | |
1469 | out: | |
450005e7 | 1470 | return retval; |
c2d11a7d JM |
1471 | } |
1472 | ||
2dc38344 | 1473 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1474 | static ptid_t |
3ee6f623 | 1475 | win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus) |
c906108c | 1476 | { |
2dc38344 | 1477 | int pid = -1; |
39f77062 | 1478 | |
c44537cf CV |
1479 | target_terminal_ours (); |
1480 | ||
c906108c SS |
1481 | /* We loop when we get a non-standard exception rather than return |
1482 | with a SPURIOUS because resume can try and step or modify things, | |
1483 | which needs a current_thread->h. But some of these exceptions mark | |
1484 | the birth or death of threads, which mean that the current thread | |
1485 | isn't necessarily what you think it is. */ | |
1486 | ||
1487 | while (1) | |
450005e7 | 1488 | { |
c57918b2 JB |
1489 | int retval; |
1490 | ||
1491 | /* Ignore CTRL+C signals while waiting for a debug event. | |
1492 | FIXME: brobecker/2008-05-20: When the user presses CTRL+C while | |
1493 | the inferior is running, both the inferior and GDB receive the | |
1494 | associated signal. If the inferior receives the signal first | |
1495 | and the delay until GDB receives that signal is sufficiently long, | |
1496 | GDB can sometimes receive the SIGINT after we have unblocked | |
1497 | the CTRL+C handler. This would lead to the debugger to stop | |
1498 | prematurely while handling the new-thread event that comes | |
1499 | with the handling of the SIGINT inside the inferior, and then | |
1500 | stop again immediately when the user tries to resume the execution | |
1501 | in the inferior. This is a classic race, and it would be nice | |
1502 | to find a better solution to that problem. But in the meantime, | |
1503 | the current approach already greatly mitigate this issue. */ | |
1504 | SetConsoleCtrlHandler (NULL, TRUE); | |
1505 | retval = get_win32_debug_event (pid, ourstatus); | |
1506 | SetConsoleCtrlHandler (NULL, FALSE); | |
1507 | ||
450005e7 | 1508 | if (retval) |
2dc38344 | 1509 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1510 | else |
1511 | { | |
1512 | int detach = 0; | |
c906108c | 1513 | |
98bbd631 AC |
1514 | if (deprecated_ui_loop_hook != NULL) |
1515 | detach = deprecated_ui_loop_hook (0); | |
7a292a7a | 1516 | |
450005e7 | 1517 | if (detach) |
3ee6f623 | 1518 | win32_kill_inferior (); |
450005e7 CF |
1519 | } |
1520 | } | |
c906108c SS |
1521 | } |
1522 | ||
9d3789f7 | 1523 | static void |
181e7f93 | 1524 | do_initial_win32_stuff (DWORD pid, int attaching) |
9d3789f7 CF |
1525 | { |
1526 | extern int stop_after_trap; | |
fa4ba8da | 1527 | int i; |
d6b48e9c | 1528 | struct inferior *inf; |
2020b7ab | 1529 | struct thread_info *tp; |
9d3789f7 | 1530 | |
7393af7c | 1531 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1532 | event_count = 0; |
1533 | exception_count = 0; | |
bf25528d | 1534 | open_process_used = 0; |
fa4ba8da | 1535 | debug_registers_changed = 0; |
dfe7f3ac | 1536 | debug_registers_used = 0; |
fa4ba8da PM |
1537 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1538 | dr[i] = 0; | |
10325bc5 | 1539 | #ifdef __CYGWIN__ |
de1b3c3d | 1540 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1541 | #endif |
9d3789f7 CF |
1542 | current_event.dwProcessId = pid; |
1543 | memset (¤t_event, 0, sizeof (current_event)); | |
3ee6f623 | 1544 | push_target (&win32_ops); |
cb851954 | 1545 | disable_breakpoints_in_shlibs (); |
3ee6f623 | 1546 | win32_clear_solib (); |
9d3789f7 CF |
1547 | clear_proceed_status (); |
1548 | init_wait_for_inferior (); | |
1549 | ||
d6b48e9c | 1550 | inf = add_inferior (pid); |
181e7f93 | 1551 | inf->attach_flag = attaching; |
7f9f62ba | 1552 | |
9f9d052e PM |
1553 | /* Make the new process the current inferior, so terminal handling |
1554 | can rely on it. When attaching, we don't know about any thread | |
1555 | id here, but that's OK --- nothing should be referencing the | |
1556 | current thread until we report an event out of win32_wait. */ | |
1557 | inferior_ptid = pid_to_ptid (pid); | |
1558 | ||
c44537cf | 1559 | terminal_init_inferior_with_pgrp (pid); |
9d3789f7 CF |
1560 | target_terminal_inferior (); |
1561 | ||
d6b48e9c | 1562 | inf->stop_soon = STOP_QUIETLY; |
9d3789f7 CF |
1563 | while (1) |
1564 | { | |
1565 | stop_after_trap = 1; | |
ae123ec6 | 1566 | wait_for_inferior (0); |
2020b7ab PA |
1567 | tp = inferior_thread (); |
1568 | if (tp->stop_signal != TARGET_SIGNAL_TRAP) | |
1569 | resume (0, tp->stop_signal); | |
9d3789f7 CF |
1570 | else |
1571 | break; | |
1572 | } | |
eff8332b | 1573 | |
d6b48e9c | 1574 | inf->stop_soon = NO_STOP_QUIETLY; |
9d3789f7 CF |
1575 | stop_after_trap = 0; |
1576 | return; | |
1577 | } | |
1578 | ||
02cc9f49 CV |
1579 | /* Since Windows XP, detaching from a process is supported by Windows. |
1580 | The following code tries loading the appropriate functions dynamically. | |
1581 | If loading these functions succeeds use them to actually detach from | |
1582 | the inferior process, otherwise behave as usual, pretending that | |
1583 | detach has worked. */ | |
1584 | static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL); | |
1585 | static BOOL WINAPI (*DebugActiveProcessStop)(DWORD); | |
1586 | ||
1587 | static int | |
5ae5f592 | 1588 | has_detach_ability (void) |
02cc9f49 CV |
1589 | { |
1590 | static HMODULE kernel32 = NULL; | |
1591 | ||
1592 | if (!kernel32) | |
1593 | kernel32 = LoadLibrary ("kernel32.dll"); | |
1594 | if (kernel32) | |
1595 | { | |
1596 | if (!DebugSetProcessKillOnExit) | |
1597 | DebugSetProcessKillOnExit = GetProcAddress (kernel32, | |
1598 | "DebugSetProcessKillOnExit"); | |
1599 | if (!DebugActiveProcessStop) | |
1600 | DebugActiveProcessStop = GetProcAddress (kernel32, | |
1601 | "DebugActiveProcessStop"); | |
1602 | if (DebugSetProcessKillOnExit && DebugActiveProcessStop) | |
1603 | return 1; | |
1604 | } | |
1605 | return 0; | |
1606 | } | |
c906108c | 1607 | |
616a9dc4 CV |
1608 | /* Try to set or remove a user privilege to the current process. Return -1 |
1609 | if that fails, the previous setting of that privilege otherwise. | |
1610 | ||
1611 | This code is copied from the Cygwin source code and rearranged to allow | |
1612 | dynamically loading of the needed symbols from advapi32 which is only | |
1613 | available on NT/2K/XP. */ | |
1614 | static int | |
1615 | set_process_privilege (const char *privilege, BOOL enable) | |
1616 | { | |
1617 | static HMODULE advapi32 = NULL; | |
1618 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
1619 | static BOOL WINAPI (*LookupPrivilegeValue)(LPCSTR, LPCSTR, PLUID); | |
1620 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, | |
1621 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
1622 | ||
1623 | HANDLE token_hdl = NULL; | |
1624 | LUID restore_priv; | |
1625 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1626 | int ret = -1; | |
1627 | DWORD size; | |
1628 | ||
1629 | if (GetVersion () >= 0x80000000) /* No security availbale on 9x/Me */ | |
1630 | return 0; | |
1631 | ||
1632 | if (!advapi32) | |
1633 | { | |
1634 | if (!(advapi32 = LoadLibrary ("advapi32.dll"))) | |
1635 | goto out; | |
1636 | if (!OpenProcessToken) | |
1637 | OpenProcessToken = GetProcAddress (advapi32, "OpenProcessToken"); | |
1638 | if (!LookupPrivilegeValue) | |
1639 | LookupPrivilegeValue = GetProcAddress (advapi32, | |
1640 | "LookupPrivilegeValueA"); | |
1641 | if (!AdjustTokenPrivileges) | |
1642 | AdjustTokenPrivileges = GetProcAddress (advapi32, | |
1643 | "AdjustTokenPrivileges"); | |
1644 | if (!OpenProcessToken || !LookupPrivilegeValue || !AdjustTokenPrivileges) | |
295732ea | 1645 | { |
616a9dc4 CV |
1646 | advapi32 = NULL; |
1647 | goto out; | |
1648 | } | |
1649 | } | |
295732ea | 1650 | |
616a9dc4 CV |
1651 | if (!OpenProcessToken (GetCurrentProcess (), |
1652 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1653 | &token_hdl)) | |
1654 | goto out; | |
1655 | ||
1656 | if (!LookupPrivilegeValue (NULL, privilege, &restore_priv)) | |
1657 | goto out; | |
1658 | ||
1659 | new_priv.PrivilegeCount = 1; | |
1660 | new_priv.Privileges[0].Luid = restore_priv; | |
1661 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1662 | ||
1663 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1664 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1665 | goto out; |
1666 | #if 0 | |
1667 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1668 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
3ee6f623 | 1669 | win32_attach(). */ |
616a9dc4 CV |
1670 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
1671 | be enabled. GetLastError () returns an correct error code, though. */ | |
1672 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) | |
1673 | goto out; | |
1674 | #endif | |
1675 | ||
1676 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1677 | ||
1678 | out: | |
1679 | if (token_hdl) | |
1680 | CloseHandle (token_hdl); | |
1681 | ||
1682 | return ret; | |
1683 | } | |
1684 | ||
02cc9f49 | 1685 | /* Attach to process PID, then initialize for debugging it. */ |
c906108c | 1686 | static void |
3ee6f623 | 1687 | win32_attach (char *args, int from_tty) |
c906108c SS |
1688 | { |
1689 | BOOL ok; | |
559e75c0 | 1690 | DWORD pid; |
c906108c SS |
1691 | |
1692 | if (!args) | |
e2e0b3e5 | 1693 | error_no_arg (_("process-id to attach")); |
c906108c | 1694 | |
616a9dc4 CV |
1695 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1696 | { | |
1697 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
1698 | printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n"); | |
1699 | } | |
1700 | ||
baa93fa6 CF |
1701 | pid = strtoul (args, 0, 0); /* Windows pid */ |
1702 | ||
3ee6f623 | 1703 | win32_init_thread_list (); |
9d3789f7 | 1704 | ok = DebugActiveProcess (pid); |
91a175b3 | 1705 | saw_create = 0; |
c906108c | 1706 | |
10325bc5 | 1707 | #ifdef __CYGWIN__ |
c906108c | 1708 | if (!ok) |
baa93fa6 CF |
1709 | { |
1710 | /* Try fall back to Cygwin pid */ | |
1711 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); | |
1712 | ||
1713 | if (pid > 0) | |
1714 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1715 | } |
1716 | #endif | |
baa93fa6 | 1717 | |
10325bc5 PA |
1718 | if (!ok) |
1719 | error (_("Can't attach to process.")); | |
c906108c | 1720 | |
02cc9f49 | 1721 | if (has_detach_ability ()) |
3ade5333 CF |
1722 | DebugSetProcessKillOnExit (FALSE); |
1723 | ||
c906108c SS |
1724 | if (from_tty) |
1725 | { | |
1726 | char *exec_file = (char *) get_exec_file (0); | |
1727 | ||
1728 | if (exec_file) | |
1729 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1730 | target_pid_to_str (pid_to_ptid (pid))); |
c906108c SS |
1731 | else |
1732 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1733 | target_pid_to_str (pid_to_ptid (pid))); |
c906108c SS |
1734 | |
1735 | gdb_flush (gdb_stdout); | |
1736 | } | |
1737 | ||
181e7f93 | 1738 | do_initial_win32_stuff (pid, 1); |
9d3789f7 | 1739 | target_terminal_ours (); |
c906108c SS |
1740 | } |
1741 | ||
1742 | static void | |
3ee6f623 | 1743 | win32_detach (char *args, int from_tty) |
c906108c | 1744 | { |
02cc9f49 CV |
1745 | int detached = 1; |
1746 | ||
1747 | if (has_detach_ability ()) | |
1748 | { | |
96998ce7 PA |
1749 | ptid_t ptid = {-1}; |
1750 | win32_resume (ptid, 0, TARGET_SIGNAL_0); | |
1751 | ||
02cc9f49 | 1752 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
3bccec63 | 1753 | { |
8a3fe4f8 | 1754 | error (_("Can't detach process %lu (error %lu)"), |
02cc9f49 CV |
1755 | current_event.dwProcessId, GetLastError ()); |
1756 | detached = 0; | |
3bccec63 | 1757 | } |
02cc9f49 CV |
1758 | DebugSetProcessKillOnExit (FALSE); |
1759 | } | |
1760 | if (detached && from_tty) | |
c906108c SS |
1761 | { |
1762 | char *exec_file = get_exec_file (0); | |
1763 | if (exec_file == 0) | |
1764 | exec_file = ""; | |
02cc9f49 CV |
1765 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1766 | current_event.dwProcessId); | |
c906108c SS |
1767 | gdb_flush (gdb_stdout); |
1768 | } | |
7f9f62ba | 1769 | |
39f77062 | 1770 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1771 | detach_inferior (current_event.dwProcessId); |
1772 | ||
3ee6f623 | 1773 | unpush_target (&win32_ops); |
c906108c SS |
1774 | } |
1775 | ||
3ee6f623 CF |
1776 | static char * |
1777 | win32_pid_to_exec_file (int pid) | |
47216e51 | 1778 | { |
47216e51 | 1779 | static char path[MAX_PATH + 1]; |
10325bc5 PA |
1780 | |
1781 | #ifdef __CYGWIN__ | |
33605d39 CF |
1782 | /* Try to find exe name as symlink target of /proc/<pid>/exe */ |
1783 | int nchars; | |
1784 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
2dc38344 | 1785 | sprintf (procexe, "/proc/%u/exe", pid); |
33605d39 CF |
1786 | nchars = readlink (procexe, path, sizeof(path)); |
1787 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 1788 | { |
33605d39 CF |
1789 | path[nchars] = '\0'; /* Got it */ |
1790 | return path; | |
47216e51 | 1791 | } |
10325bc5 PA |
1792 | #endif |
1793 | ||
33605d39 CF |
1794 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
1795 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ | |
1796 | if (!get_module_name (0, path)) | |
1797 | path[0] = '\0'; | |
1798 | ||
1799 | return path; | |
47216e51 CV |
1800 | } |
1801 | ||
c906108c SS |
1802 | /* Print status information about what we're accessing. */ |
1803 | ||
1804 | static void | |
3ee6f623 | 1805 | win32_files_info (struct target_ops *ignore) |
c906108c | 1806 | { |
181e7f93 PA |
1807 | struct inferior *inf = current_inferior (); |
1808 | ||
c906108c | 1809 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
1810 | inf->attach_flag ? "attached" : "child", |
1811 | target_pid_to_str (inferior_ptid)); | |
c906108c SS |
1812 | } |
1813 | ||
c906108c | 1814 | static void |
3ee6f623 | 1815 | win32_open (char *arg, int from_tty) |
c906108c | 1816 | { |
8a3fe4f8 | 1817 | error (_("Use the \"run\" command to start a Unix child process.")); |
c906108c SS |
1818 | } |
1819 | ||
39f77062 | 1820 | /* Start an inferior win32 child process and sets inferior_ptid to its pid. |
c906108c SS |
1821 | EXEC_FILE is the file to run. |
1822 | ALLARGS is a string containing the arguments to the program. | |
1823 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1824 | ||
1825 | static void | |
8efc5725 | 1826 | win32_create_inferior (char *exec_file, char *allargs, char **in_env, |
c27cda74 | 1827 | int from_tty) |
c906108c | 1828 | { |
c906108c SS |
1829 | STARTUPINFO si; |
1830 | PROCESS_INFORMATION pi; | |
c906108c SS |
1831 | BOOL ret; |
1832 | DWORD flags; | |
1833 | char *args; | |
dfe7f3ac CF |
1834 | char real_path[MAXPATHLEN]; |
1835 | char *toexec; | |
349b409f CF |
1836 | char shell[MAX_PATH + 1]; /* Path to shell */ |
1837 | const char *sh; | |
2becadee CF |
1838 | int tty; |
1839 | int ostdin, ostdout, ostderr; | |
3cb3b8df | 1840 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
c906108c SS |
1841 | |
1842 | if (!exec_file) | |
8a3fe4f8 | 1843 | error (_("No executable specified, use `target exec'.")); |
c906108c SS |
1844 | |
1845 | memset (&si, 0, sizeof (si)); | |
1846 | si.cb = sizeof (si); | |
1847 | ||
10325bc5 | 1848 | #ifdef __CYGWIN__ |
349b409f | 1849 | if (!useshell) |
dfe7f3ac CF |
1850 | { |
1851 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1852 | cygwin_conv_to_win32_path (exec_file, real_path); | |
1853 | toexec = real_path; | |
1854 | } | |
1855 | else | |
1856 | { | |
349b409f CF |
1857 | char *newallargs; |
1858 | sh = getenv ("SHELL"); | |
1859 | if (!sh) | |
1860 | sh = "/bin/sh"; | |
1861 | cygwin_conv_to_win32_path (sh, shell); | |
1862 | newallargs = alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
1863 | + strlen (allargs) + 2); | |
dfe7f3ac CF |
1864 | sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs); |
1865 | allargs = newallargs; | |
1866 | toexec = shell; | |
1867 | flags = DEBUG_PROCESS; | |
1868 | } | |
10325bc5 PA |
1869 | #else |
1870 | toexec = exec_file; | |
1871 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1872 | #endif | |
c906108c | 1873 | |
eeb25b8a PM |
1874 | if (new_group) |
1875 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1876 | ||
1877 | if (new_console) | |
1878 | flags |= CREATE_NEW_CONSOLE; | |
1879 | ||
dfe7f3ac CF |
1880 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
1881 | strcpy (args, toexec); | |
c906108c SS |
1882 | strcat (args, " "); |
1883 | strcat (args, allargs); | |
1884 | ||
10325bc5 | 1885 | #ifdef __CYGWIN__ |
c906108c | 1886 | /* Prepare the environment vars for CreateProcess. */ |
002c07a9 | 1887 | cygwin_internal (CW_SYNC_WINENV); |
c906108c | 1888 | |
2becadee CF |
1889 | if (!inferior_io_terminal) |
1890 | tty = ostdin = ostdout = ostderr = -1; | |
1891 | else | |
1892 | { | |
1893 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
1894 | if (tty < 0) | |
1895 | { | |
1896 | print_sys_errmsg (inferior_io_terminal, errno); | |
1897 | ostdin = ostdout = ostderr = -1; | |
1898 | } | |
1899 | else | |
1900 | { | |
1901 | ostdin = dup (0); | |
1902 | ostdout = dup (1); | |
1903 | ostderr = dup (2); | |
1904 | dup2 (tty, 0); | |
1905 | dup2 (tty, 1); | |
1906 | dup2 (tty, 2); | |
1907 | } | |
1908 | } | |
10325bc5 | 1909 | #endif |
2becadee | 1910 | |
3ee6f623 | 1911 | win32_init_thread_list (); |
c906108c | 1912 | ret = CreateProcess (0, |
c5aa993b | 1913 | args, /* command line */ |
c906108c SS |
1914 | NULL, /* Security */ |
1915 | NULL, /* thread */ | |
1916 | TRUE, /* inherit handles */ | |
1917 | flags, /* start flags */ | |
002c07a9 | 1918 | NULL, /* environment */ |
c906108c SS |
1919 | NULL, /* current directory */ |
1920 | &si, | |
1921 | &pi); | |
10325bc5 PA |
1922 | |
1923 | #ifdef __CYGWIN__ | |
2becadee CF |
1924 | if (tty >= 0) |
1925 | { | |
1926 | close (tty); | |
1927 | dup2 (ostdin, 0); | |
1928 | dup2 (ostdout, 1); | |
1929 | dup2 (ostderr, 2); | |
1930 | close (ostdin); | |
1931 | close (ostdout); | |
1932 | close (ostderr); | |
1933 | } | |
10325bc5 | 1934 | #endif |
2becadee | 1935 | |
c906108c | 1936 | if (!ret) |
8a3fe4f8 AC |
1937 | error (_("Error creating process %s, (error %d)."), |
1938 | exec_file, (unsigned) GetLastError ()); | |
c906108c | 1939 | |
c1766e7d PM |
1940 | CloseHandle (pi.hThread); |
1941 | CloseHandle (pi.hProcess); | |
1942 | ||
dfe7f3ac CF |
1943 | if (useshell && shell[0] != '\0') |
1944 | saw_create = -1; | |
1945 | else | |
1946 | saw_create = 0; | |
1947 | ||
181e7f93 | 1948 | do_initial_win32_stuff (pi.dwProcessId, 0); |
ed9a39eb | 1949 | |
3ee6f623 | 1950 | /* win32_continue (DBG_CONTINUE, -1); */ |
c906108c SS |
1951 | } |
1952 | ||
1953 | static void | |
3ee6f623 | 1954 | win32_mourn_inferior (void) |
c906108c | 1955 | { |
3ee6f623 | 1956 | (void) win32_continue (DBG_CONTINUE, -1); |
fa4ba8da | 1957 | i386_cleanup_dregs(); |
bf25528d CF |
1958 | if (open_process_used) |
1959 | { | |
1960 | CHECK (CloseHandle (current_process_handle)); | |
1961 | open_process_used = 0; | |
1962 | } | |
3ee6f623 | 1963 | unpush_target (&win32_ops); |
c906108c SS |
1964 | generic_mourn_inferior (); |
1965 | } | |
1966 | ||
1967 | /* Send a SIGINT to the process group. This acts just like the user typed a | |
1968 | ^C on the controlling terminal. */ | |
1969 | ||
1970 | static void | |
f9c72d52 | 1971 | win32_stop (ptid_t ptid) |
c906108c SS |
1972 | { |
1973 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); | |
c2d11a7d | 1974 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
c5aa993b | 1975 | registers_changed (); /* refresh register state */ |
c906108c SS |
1976 | } |
1977 | ||
3ee6f623 CF |
1978 | static int |
1979 | win32_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, | |
0a65a603 AC |
1980 | int write, struct mem_attrib *mem, |
1981 | struct target_ops *target) | |
c906108c | 1982 | { |
6f17862b | 1983 | DWORD done = 0; |
c906108c SS |
1984 | if (write) |
1985 | { | |
29fe111d | 1986 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
2c647436 PM |
1987 | len, (DWORD) (uintptr_t) memaddr)); |
1988 | if (!WriteProcessMemory (current_process_handle, | |
1989 | (LPVOID) (uintptr_t) memaddr, our, | |
6f17862b CF |
1990 | len, &done)) |
1991 | done = 0; | |
2c647436 PM |
1992 | FlushInstructionCache (current_process_handle, |
1993 | (LPCVOID) (uintptr_t) memaddr, len); | |
c906108c SS |
1994 | } |
1995 | else | |
1996 | { | |
29fe111d | 1997 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
2c647436 PM |
1998 | len, (DWORD) (uintptr_t) memaddr)); |
1999 | if (!ReadProcessMemory (current_process_handle, | |
2000 | (LPCVOID) (uintptr_t) memaddr, our, | |
6f17862b CF |
2001 | len, &done)) |
2002 | done = 0; | |
c906108c SS |
2003 | } |
2004 | return done; | |
2005 | } | |
2006 | ||
3ee6f623 CF |
2007 | static void |
2008 | win32_kill_inferior (void) | |
c906108c SS |
2009 | { |
2010 | CHECK (TerminateProcess (current_process_handle, 0)); | |
2011 | ||
2012 | for (;;) | |
2013 | { | |
3ee6f623 | 2014 | if (!win32_continue (DBG_CONTINUE, -1)) |
c906108c SS |
2015 | break; |
2016 | if (!WaitForDebugEvent (¤t_event, INFINITE)) | |
2017 | break; | |
2018 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
2019 | break; | |
2020 | } | |
2021 | ||
3ee6f623 | 2022 | target_mourn_inferior (); /* or just win32_mourn_inferior? */ |
c906108c SS |
2023 | } |
2024 | ||
c906108c | 2025 | static void |
316f2060 | 2026 | win32_prepare_to_store (struct regcache *regcache) |
c906108c SS |
2027 | { |
2028 | /* Do nothing, since we can store individual regs */ | |
2029 | } | |
2030 | ||
2031 | static int | |
3ee6f623 | 2032 | win32_can_run (void) |
c906108c SS |
2033 | { |
2034 | return 1; | |
2035 | } | |
2036 | ||
2037 | static void | |
3ee6f623 | 2038 | win32_close (int x) |
c906108c | 2039 | { |
3ee6f623 | 2040 | DEBUG_EVENTS (("gdb: win32_close, inferior_ptid=%d\n", |
3bccec63 | 2041 | PIDGET (inferior_ptid))); |
c906108c SS |
2042 | } |
2043 | ||
3ee6f623 CF |
2044 | /* Convert pid to printable format. */ |
2045 | static char * | |
10325bc5 | 2046 | win32_pid_to_str (ptid_t ptid) |
c906108c | 2047 | { |
3ee6f623 | 2048 | static char buf[80]; |
3ee6f623 | 2049 | |
2dc38344 PA |
2050 | if (ptid_get_tid (ptid) != 0) |
2051 | { | |
2052 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2053 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2054 | return buf; | |
2055 | } | |
2056 | ||
2057 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2058 | } |
2059 | ||
de1b3c3d PA |
2060 | static LONGEST |
2061 | win32_xfer_shared_libraries (struct target_ops *ops, | |
2062 | enum target_object object, const char *annex, | |
2063 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2064 | ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2065 | { |
de1b3c3d PA |
2066 | struct obstack obstack; |
2067 | const char *buf; | |
2068 | LONGEST len_avail; | |
3cb8e7f6 | 2069 | struct so_list *so; |
3cb8e7f6 | 2070 | |
de1b3c3d PA |
2071 | if (writebuf) |
2072 | return -1; | |
3cb8e7f6 | 2073 | |
de1b3c3d PA |
2074 | obstack_init (&obstack); |
2075 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2076 | for (so = solib_start.next; so; so = so->next) | |
2077 | win32_xfer_shared_library (so->so_name, so->lm_info->load_addr, &obstack); | |
2078 | obstack_grow_str0 (&obstack, "</library-list>\n"); | |
3cb8e7f6 | 2079 | |
de1b3c3d PA |
2080 | buf = obstack_finish (&obstack); |
2081 | len_avail = strlen (buf); | |
2082 | if (offset >= len_avail) | |
2083 | return 0; | |
3cb8e7f6 | 2084 | |
de1b3c3d PA |
2085 | if (len > len_avail - offset) |
2086 | len = len_avail - offset; | |
2087 | memcpy (readbuf, buf + offset, len); | |
3cb8e7f6 | 2088 | |
de1b3c3d PA |
2089 | obstack_free (&obstack, NULL); |
2090 | return len; | |
3cb8e7f6 CF |
2091 | } |
2092 | ||
de1b3c3d PA |
2093 | static LONGEST |
2094 | win32_xfer_partial (struct target_ops *ops, enum target_object object, | |
2095 | const char *annex, gdb_byte *readbuf, | |
2096 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2097 | { |
de1b3c3d | 2098 | switch (object) |
3cb8e7f6 | 2099 | { |
de1b3c3d PA |
2100 | case TARGET_OBJECT_MEMORY: |
2101 | if (readbuf) | |
2102 | return (*ops->deprecated_xfer_memory) (offset, readbuf, | |
244e85c8 | 2103 | len, 0/*read*/, NULL, ops); |
de1b3c3d PA |
2104 | if (writebuf) |
2105 | return (*ops->deprecated_xfer_memory) (offset, (gdb_byte *) writebuf, | |
2106 | len, 1/*write*/, NULL, ops); | |
2107 | return -1; | |
2108 | ||
2109 | case TARGET_OBJECT_LIBRARIES: | |
2110 | return win32_xfer_shared_libraries (ops, object, annex, readbuf, | |
2111 | writebuf, offset, len); | |
3929abe9 | 2112 | |
de1b3c3d PA |
2113 | default: |
2114 | if (ops->beneath != NULL) | |
2115 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2116 | readbuf, writebuf, offset, len); | |
2117 | return -1; | |
3929abe9 | 2118 | } |
02c5aecd CF |
2119 | } |
2120 | ||
3ee6f623 CF |
2121 | static void |
2122 | init_win32_ops (void) | |
2123 | { | |
2124 | win32_ops.to_shortname = "child"; | |
2125 | win32_ops.to_longname = "Win32 child process"; | |
2126 | win32_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2127 | win32_ops.to_open = win32_open; | |
2128 | win32_ops.to_close = win32_close; | |
2129 | win32_ops.to_attach = win32_attach; | |
dc177b7a | 2130 | win32_ops.to_attach_no_wait = 1; |
3ee6f623 CF |
2131 | win32_ops.to_detach = win32_detach; |
2132 | win32_ops.to_resume = win32_resume; | |
2133 | win32_ops.to_wait = win32_wait; | |
2134 | win32_ops.to_fetch_registers = win32_fetch_inferior_registers; | |
2135 | win32_ops.to_store_registers = win32_store_inferior_registers; | |
2136 | win32_ops.to_prepare_to_store = win32_prepare_to_store; | |
2137 | win32_ops.deprecated_xfer_memory = win32_xfer_memory; | |
de1b3c3d | 2138 | win32_ops.to_xfer_partial = win32_xfer_partial; |
3ee6f623 CF |
2139 | win32_ops.to_files_info = win32_files_info; |
2140 | win32_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2141 | win32_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2142 | win32_ops.to_terminal_init = terminal_init_inferior; | |
2143 | win32_ops.to_terminal_inferior = terminal_inferior; | |
2144 | win32_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2145 | win32_ops.to_terminal_ours = terminal_ours; | |
2146 | win32_ops.to_terminal_save_ours = terminal_save_ours; | |
2147 | win32_ops.to_terminal_info = child_terminal_info; | |
2148 | win32_ops.to_kill = win32_kill_inferior; | |
2149 | win32_ops.to_create_inferior = win32_create_inferior; | |
2150 | win32_ops.to_mourn_inferior = win32_mourn_inferior; | |
2151 | win32_ops.to_can_run = win32_can_run; | |
2152 | win32_ops.to_thread_alive = win32_win32_thread_alive; | |
10325bc5 | 2153 | win32_ops.to_pid_to_str = win32_pid_to_str; |
3ee6f623 CF |
2154 | win32_ops.to_stop = win32_stop; |
2155 | win32_ops.to_stratum = process_stratum; | |
2156 | win32_ops.to_has_all_memory = 1; | |
2157 | win32_ops.to_has_memory = 1; | |
2158 | win32_ops.to_has_stack = 1; | |
2159 | win32_ops.to_has_registers = 1; | |
2160 | win32_ops.to_has_execution = 1; | |
3ee6f623 | 2161 | win32_ops.to_pid_to_exec_file = win32_pid_to_exec_file; |
2dc38344 | 2162 | win32_ops.to_magic = OPS_MAGIC; |
c906108c SS |
2163 | } |
2164 | ||
3929abe9 CF |
2165 | static void |
2166 | set_win32_aliases (char *argv0) | |
2167 | { | |
2168 | add_info_alias ("dll", "sharedlibrary", 1); | |
2169 | } | |
2170 | ||
c906108c | 2171 | void |
a6b6b089 | 2172 | _initialize_win32_nat (void) |
c906108c | 2173 | { |
fa58ee11 EZ |
2174 | struct cmd_list_element *c; |
2175 | ||
3ee6f623 | 2176 | init_win32_ops (); |
c906108c | 2177 | |
fa58ee11 | 2178 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2179 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2180 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2181 | |
2182 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2183 | ||
10325bc5 | 2184 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2185 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2186 | Set use of shell to start subprocess."), _("\ | |
2187 | Show use of shell to start subprocess."), NULL, | |
2188 | NULL, | |
2189 | NULL, /* FIXME: i18n: */ | |
2190 | &setlist, &showlist); | |
2191 | ||
09280ddf CF |
2192 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, &cygwin_exceptions, _("\ |
2193 | Break when an exception is detected in the Cygwin DLL itself."), _("\ | |
2194 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2195 | NULL, | |
2196 | NULL, /* FIXME: i18n: */ | |
2197 | &setlist, &showlist); | |
10325bc5 | 2198 | #endif |
09280ddf | 2199 | |
5bf193a2 AC |
2200 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2201 | Set creation of new console when creating child process."), _("\ | |
2202 | Show creation of new console when creating child process."), NULL, | |
2203 | NULL, | |
2204 | NULL, /* FIXME: i18n: */ | |
2205 | &setlist, &showlist); | |
2206 | ||
2207 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2208 | Set creation of new group when creating child process."), _("\ | |
2209 | Show creation of new group when creating child process."), NULL, | |
2210 | NULL, | |
2211 | NULL, /* FIXME: i18n: */ | |
2212 | &setlist, &showlist); | |
2213 | ||
2214 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2215 | Set whether to display execution in child process."), _("\ | |
2216 | Show whether to display execution in child process."), NULL, | |
2217 | NULL, | |
2218 | NULL, /* FIXME: i18n: */ | |
2219 | &setlist, &showlist); | |
2220 | ||
2221 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2222 | Set whether to display kernel events in child process."), _("\ | |
2223 | Show whether to display kernel events in child process."), NULL, | |
2224 | NULL, | |
2225 | NULL, /* FIXME: i18n: */ | |
2226 | &setlist, &showlist); | |
2227 | ||
2228 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2229 | Set whether to display memory accesses in child process."), _("\ | |
2230 | Show whether to display memory accesses in child process."), NULL, | |
2231 | NULL, | |
2232 | NULL, /* FIXME: i18n: */ | |
2233 | &setlist, &showlist); | |
2234 | ||
2235 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2236 | &debug_exceptions, _("\ | |
2237 | Set whether to display kernel exceptions in child process."), _("\ | |
2238 | Show whether to display kernel exceptions in child process."), NULL, | |
2239 | NULL, | |
2240 | NULL, /* FIXME: i18n: */ | |
2241 | &setlist, &showlist); | |
c906108c | 2242 | |
c1748f97 | 2243 | add_prefix_cmd ("w32", class_info, info_w32_command, |
1bedd215 | 2244 | _("Print information specific to Win32 debugging."), |
baa93fa6 | 2245 | &info_w32_cmdlist, "info w32 ", 0, &infolist); |
c1748f97 PM |
2246 | |
2247 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2248 | _("Display selectors infos."), |
c1748f97 | 2249 | &info_w32_cmdlist); |
3ee6f623 | 2250 | add_target (&win32_ops); |
3929abe9 | 2251 | deprecated_init_ui_hook = set_win32_aliases; |
c906108c SS |
2252 | } |
2253 | ||
fa4ba8da PM |
2254 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2255 | ||
2256 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2257 | Here we just store the address in dr array, the registers will be | |
3ee6f623 | 2258 | actually set up when win32_continue is called. */ |
fa4ba8da PM |
2259 | void |
2260 | cygwin_set_dr (int i, CORE_ADDR addr) | |
2261 | { | |
2262 | if (i < 0 || i > 3) | |
2263 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2264 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
fa4ba8da PM |
2265 | dr[i] = (unsigned) addr; |
2266 | debug_registers_changed = 1; | |
2267 | debug_registers_used = 1; | |
2268 | } | |
2269 | ||
2270 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2271 | register. Here we just store the address in D_REGS, the watchpoint | |
3ee6f623 | 2272 | will be actually set up in win32_wait. */ |
fa4ba8da PM |
2273 | void |
2274 | cygwin_set_dr7 (unsigned val) | |
2275 | { | |
2276 | dr[7] = val; | |
2277 | debug_registers_changed = 1; | |
2278 | debug_registers_used = 1; | |
2279 | } | |
2280 | ||
2281 | /* Get the value of the DR6 debug status register from the inferior. | |
2282 | Here we just return the value stored in dr[6] | |
2283 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
2284 | unsigned | |
2285 | cygwin_get_dr6 (void) | |
2286 | { | |
2287 | return dr[6]; | |
2288 | } | |
2289 | ||
2dc38344 | 2290 | /* Determine if the thread referenced by "ptid" is alive |
c906108c | 2291 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
2dc38344 | 2292 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
c906108c | 2293 | static int |
3ee6f623 | 2294 | win32_win32_thread_alive (ptid_t ptid) |
c906108c | 2295 | { |
2dc38344 PA |
2296 | int tid; |
2297 | ||
2298 | gdb_assert (ptid_get_tid (ptid) != 0); | |
2299 | tid = ptid_get_tid (ptid); | |
39f77062 | 2300 | |
2dc38344 | 2301 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
c5aa993b | 2302 | FALSE : TRUE; |
c906108c SS |
2303 | } |
2304 | ||
2a3d5645 CF |
2305 | void |
2306 | _initialize_check_for_gdb_ini (void) | |
2307 | { | |
2308 | char *homedir; | |
2309 | if (inhibit_gdbinit) | |
2310 | return; | |
2311 | ||
2312 | homedir = getenv ("HOME"); | |
2313 | if (homedir) | |
2314 | { | |
2315 | char *p; | |
2316 | char *oldini = (char *) alloca (strlen (homedir) + | |
2317 | sizeof ("/gdb.ini")); | |
2318 | strcpy (oldini, homedir); | |
2319 | p = strchr (oldini, '\0'); | |
2320 | if (p > oldini && p[-1] != '/') | |
2321 | *p++ = '/'; | |
2322 | strcpy (p, "gdb.ini"); | |
2323 | if (access (oldini, 0) == 0) | |
2324 | { | |
2325 | int len = strlen (oldini); | |
2326 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2327 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2328 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2329 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2330 | } |
2331 | } | |
2332 | } | |
33605d39 CF |
2333 | |
2334 | void | |
2335 | _initialize_psapi (void) | |
2336 | { | |
2337 | /* Load optional functions used for retrieving filename information | |
2338 | associated with the currently debugged process or its dlls. */ | |
2339 | if (!psapi_loaded) | |
2340 | { | |
2341 | HMODULE psapi_module_handle; | |
2342 | ||
2343 | psapi_loaded = -1; | |
2344 | ||
2345 | psapi_module_handle = LoadLibrary ("psapi.dll"); | |
2346 | if (psapi_module_handle) | |
2347 | { | |
2348 | psapi_EnumProcessModules = (void *) GetProcAddress (psapi_module_handle, "EnumProcessModules"); | |
2349 | psapi_GetModuleInformation = (void *) GetProcAddress (psapi_module_handle, "GetModuleInformation"); | |
2350 | psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, "GetModuleFileNameExA"); | |
2351 | ||
2352 | if (psapi_EnumProcessModules != NULL | |
2353 | && psapi_GetModuleInformation != NULL | |
2354 | && psapi_GetModuleFileNameExA != NULL) | |
2355 | psapi_loaded = 1; | |
2356 | } | |
2357 | } | |
2358 | ||
2359 | /* This will probably fail on Windows 9x/Me. Let the user know that we're | |
2360 | missing some functionality. */ | |
2361 | if (psapi_loaded < 0) | |
2362 | warning(_("cannot automatically find executable file or library to read symbols. Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
2363 | } |