Commit | Line | Data |
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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
281b533b | 3 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
0fb0cc75 | 4 | 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
0a65a603 | 5 | |
e6433c28 | 6 | Contributed by Cygnus Solutions, A Red Hat Company. |
e88c49c3 | 7 | |
24e60978 SC |
8 | This file is part of GDB. |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
24e60978 SC |
13 | (at your option) any later version. |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
a9762ec7 | 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
24e60978 SC |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
24e60978 | 22 | |
dfe7f3ac | 23 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
24e60978 SC |
24 | |
25 | #include "defs.h" | |
26 | #include "frame.h" /* required by inferior.h */ | |
27 | #include "inferior.h" | |
28 | #include "target.h" | |
60250e8b | 29 | #include "exceptions.h" |
24e60978 SC |
30 | #include "gdbcore.h" |
31 | #include "command.h" | |
fa58ee11 | 32 | #include "completer.h" |
4e052eda | 33 | #include "regcache.h" |
2a3d5645 | 34 | #include "top.h" |
403d9909 CF |
35 | #include <signal.h> |
36 | #include <sys/types.h> | |
37 | #include <fcntl.h> | |
38 | #include <stdlib.h> | |
39 | #include <windows.h> | |
40 | #include <imagehlp.h> | |
10325bc5 | 41 | #ifdef __CYGWIN__ |
403d9909 | 42 | #include <sys/cygwin.h> |
10325bc5 | 43 | #endif |
a244bdca | 44 | #include <signal.h> |
cad9cd60 | 45 | |
24e60978 | 46 | #include "buildsym.h" |
1ef980b9 SC |
47 | #include "symfile.h" |
48 | #include "objfiles.h" | |
de1b3c3d | 49 | #include "gdb_obstack.h" |
24e60978 | 50 | #include "gdb_string.h" |
fdfa3315 | 51 | #include "gdbthread.h" |
24e60978 | 52 | #include "gdbcmd.h" |
1750a5ef | 53 | #include <sys/param.h> |
1e37c281 | 54 | #include <unistd.h> |
4646aa9d | 55 | #include "exec.h" |
3ee6f623 | 56 | #include "solist.h" |
3cb8e7f6 | 57 | #include "solib.h" |
de1b3c3d | 58 | #include "xml-support.h" |
24e60978 | 59 | |
6c7de422 MK |
60 | #include "i386-tdep.h" |
61 | #include "i387-tdep.h" | |
62 | ||
31b060a2 CF |
63 | #include "windows-tdep.h" |
64 | #include "windows-nat.h" | |
de1b3c3d | 65 | |
dc05df57 | 66 | static struct target_ops windows_ops; |
3ee6f623 | 67 | |
10325bc5 | 68 | #ifdef __CYGWIN__ |
a244bdca | 69 | /* The starting and ending address of the cygwin1.dll text segment. */ |
dc05df57 CF |
70 | static CORE_ADDR cygwin_load_start; |
71 | static CORE_ADDR cygwin_load_end; | |
10325bc5 | 72 | #endif |
a244bdca CF |
73 | |
74 | static int have_saved_context; /* True if we've saved context from a cygwin signal. */ | |
75 | static CONTEXT saved_context; /* Containes the saved context from a cygwin signal. */ | |
76 | ||
0714f9bf SS |
77 | /* If we're not using the old Cygwin header file set, define the |
78 | following which never should have been in the generic Win32 API | |
79 | headers in the first place since they were our own invention... */ | |
80 | #ifndef _GNU_H_WINDOWS_H | |
9d3789f7 | 81 | enum |
8e860359 CF |
82 | { |
83 | FLAG_TRACE_BIT = 0x100, | |
84 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
85 | }; | |
0714f9bf | 86 | #endif |
8e860359 | 87 | #include <psapi.h> |
0714f9bf | 88 | |
5851ab76 JB |
89 | #ifndef CONTEXT_EXTENDED_REGISTERS |
90 | /* This macro is only defined on ia32. It only makes sense on this target, | |
91 | so define it as zero if not already defined. */ | |
92 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
93 | #endif | |
94 | ||
fa4ba8da PM |
95 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
96 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 97 | |
fa4ba8da | 98 | static unsigned dr[8]; |
87a45c96 CF |
99 | static int debug_registers_changed; |
100 | static int debug_registers_used; | |
6537bb24 | 101 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 102 | |
3cee93ac CF |
103 | /* The string sent by cygwin when it processes a signal. |
104 | FIXME: This should be in a cygwin include file. */ | |
3929abe9 CF |
105 | #ifndef _CYGWIN_SIGNAL_STRING |
106 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
107 | #endif | |
3cee93ac | 108 | |
29fe111d | 109 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 110 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
111 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
112 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
113 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 114 | |
dc05df57 CF |
115 | static void windows_stop (ptid_t); |
116 | static int windows_thread_alive (ptid_t); | |
117 | static void windows_kill_inferior (void); | |
3cee93ac | 118 | |
7393af7c PM |
119 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
120 | /* Set if a signal was received from the debugged process */ | |
121 | ||
3cee93ac | 122 | /* Thread information structure used to track information that is |
6537bb24 | 123 | not available in gdb's thread structure. */ |
3cee93ac | 124 | typedef struct thread_info_struct |
3a4b77d8 JM |
125 | { |
126 | struct thread_info_struct *next; | |
127 | DWORD id; | |
128 | HANDLE h; | |
129 | char *name; | |
6537bb24 | 130 | int suspended; |
3ade5333 | 131 | int reload_context; |
3a4b77d8 | 132 | CONTEXT context; |
1e37c281 | 133 | STACKFRAME sf; |
8e860359 CF |
134 | } |
135 | thread_info; | |
1e37c281 | 136 | |
29fe111d | 137 | static thread_info thread_head; |
24e60978 | 138 | |
24e60978 SC |
139 | /* The process and thread handles for the above context. */ |
140 | ||
3cee93ac CF |
141 | static DEBUG_EVENT current_event; /* The current debug event from |
142 | WaitForDebugEvent */ | |
143 | static HANDLE current_process_handle; /* Currently executing process */ | |
144 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 145 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 SC |
146 | |
147 | /* Counts of things. */ | |
148 | static int exception_count = 0; | |
149 | static int event_count = 0; | |
dfe7f3ac | 150 | static int saw_create; |
bf25528d | 151 | static int open_process_used = 0; |
24e60978 SC |
152 | |
153 | /* User options. */ | |
154 | static int new_console = 0; | |
10325bc5 | 155 | #ifdef __CYGWIN__ |
09280ddf | 156 | static int cygwin_exceptions = 0; |
10325bc5 | 157 | #endif |
1e37c281 | 158 | static int new_group = 1; |
dfe7f3ac CF |
159 | static int debug_exec = 0; /* show execution */ |
160 | static int debug_events = 0; /* show events from kernel */ | |
161 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 162 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
163 | static int useshell = 0; /* use shell for subprocesses */ |
164 | ||
7e63b4e4 | 165 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 166 | in the windows exception context vector. |
24e60978 | 167 | |
3cee93ac | 168 | It also contains the bit mask needed to load the register in question. |
24e60978 | 169 | |
7e63b4e4 JB |
170 | The contents of this table can only be computed by the units |
171 | that provide CPU-specific support for Windows native debugging. | |
172 | These units should set the table by calling | |
dc05df57 | 173 | windows_set_context_register_offsets. |
7e63b4e4 | 174 | |
24e60978 SC |
175 | One day we could read a reg, we could inspect the context we |
176 | already have loaded, if it doesn't have the bit set that we need, | |
177 | we read that set of registers in using GetThreadContext. If the | |
178 | context already contains what we need, we just unpack it. Then to | |
179 | write a register, first we have to ensure that the context contains | |
180 | the other regs of the group, and then we copy the info in and set | |
181 | out bit. */ | |
182 | ||
7e63b4e4 | 183 | static const int *mappings; |
d3a09475 | 184 | |
24e60978 SC |
185 | /* This vector maps the target's idea of an exception (extracted |
186 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
187 | ||
188 | struct xlate_exception | |
189 | { | |
190 | int them; | |
191 | enum target_signal us; | |
192 | }; | |
193 | ||
24e60978 SC |
194 | static const struct xlate_exception |
195 | xlate[] = | |
196 | { | |
197 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 198 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
199 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
200 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
201 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
7393af7c | 202 | {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE}, |
24e60978 SC |
203 | {-1, -1}}; |
204 | ||
7e63b4e4 JB |
205 | /* Set the MAPPINGS static global to OFFSETS. |
206 | See the description of MAPPINGS for more details. */ | |
207 | ||
208 | void | |
dc05df57 | 209 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
210 | { |
211 | mappings = offsets; | |
212 | } | |
213 | ||
fa4ba8da PM |
214 | static void |
215 | check (BOOL ok, const char *file, int line) | |
216 | { | |
217 | if (!ok) | |
dfe7f3ac | 218 | printf_filtered ("error return %s:%d was %lu\n", file, line, |
fa4ba8da PM |
219 | GetLastError ()); |
220 | } | |
221 | ||
6537bb24 PA |
222 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
223 | then also retrieve the context for this thread. If GET_CONTEXT is | |
224 | negative, then don't suspend the thread. */ | |
3cee93ac CF |
225 | static thread_info * |
226 | thread_rec (DWORD id, int get_context) | |
24e60978 | 227 | { |
3cee93ac CF |
228 | thread_info *th; |
229 | ||
3a4b77d8 | 230 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
231 | if (th->id == id) |
232 | { | |
6537bb24 | 233 | if (!th->suspended && get_context) |
3cee93ac | 234 | { |
8a892701 | 235 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
236 | { |
237 | if (SuspendThread (th->h) == (DWORD) -1) | |
238 | { | |
239 | DWORD err = GetLastError (); | |
240 | warning (_("SuspendThread failed. (winerr %d)"), | |
241 | (int) err); | |
242 | return NULL; | |
243 | } | |
244 | th->suspended = 1; | |
245 | } | |
3cee93ac | 246 | else if (get_context < 0) |
6537bb24 | 247 | th->suspended = -1; |
3ade5333 | 248 | th->reload_context = 1; |
3cee93ac CF |
249 | } |
250 | return th; | |
251 | } | |
252 | ||
253 | return NULL; | |
254 | } | |
255 | ||
2dc38344 | 256 | /* Add a thread to the thread list. */ |
3cee93ac | 257 | static thread_info * |
dc05df57 | 258 | windows_add_thread (ptid_t ptid, HANDLE h) |
3cee93ac CF |
259 | { |
260 | thread_info *th; | |
2dc38344 PA |
261 | DWORD id; |
262 | ||
263 | gdb_assert (ptid_get_tid (ptid) != 0); | |
264 | ||
265 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
266 | |
267 | if ((th = thread_rec (id, FALSE))) | |
268 | return th; | |
269 | ||
3929abe9 | 270 | th = XZALLOC (thread_info); |
3cee93ac CF |
271 | th->id = id; |
272 | th->h = h; | |
273 | th->next = thread_head.next; | |
274 | thread_head.next = th; | |
2dc38344 PA |
275 | add_thread (ptid); |
276 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
277 | if (debug_registers_used) |
278 | { | |
279 | /* Only change the value of the debug registers. */ | |
280 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
281 | CHECK (GetThreadContext (th->h, &th->context)); | |
282 | th->context.Dr0 = dr[0]; | |
283 | th->context.Dr1 = dr[1]; | |
284 | th->context.Dr2 = dr[2]; | |
285 | th->context.Dr3 = dr[3]; | |
6537bb24 | 286 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
287 | th->context.Dr7 = dr[7]; |
288 | CHECK (SetThreadContext (th->h, &th->context)); | |
289 | th->context.ContextFlags = 0; | |
290 | } | |
3cee93ac | 291 | return th; |
24e60978 SC |
292 | } |
293 | ||
3cee93ac CF |
294 | /* Clear out any old thread list and reintialize it to a |
295 | pristine state. */ | |
24e60978 | 296 | static void |
dc05df57 | 297 | windows_init_thread_list (void) |
24e60978 | 298 | { |
3cee93ac CF |
299 | thread_info *th = &thread_head; |
300 | ||
dc05df57 | 301 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
302 | init_thread_list (); |
303 | while (th->next != NULL) | |
24e60978 | 304 | { |
3cee93ac CF |
305 | thread_info *here = th->next; |
306 | th->next = here->next; | |
b8c9b27d | 307 | xfree (here); |
24e60978 | 308 | } |
059198c1 | 309 | thread_head.next = NULL; |
3cee93ac CF |
310 | } |
311 | ||
312 | /* Delete a thread from the list of threads */ | |
313 | static void | |
dc05df57 | 314 | windows_delete_thread (ptid_t ptid) |
3cee93ac CF |
315 | { |
316 | thread_info *th; | |
2dc38344 PA |
317 | DWORD id; |
318 | ||
319 | gdb_assert (ptid_get_tid (ptid) != 0); | |
320 | ||
321 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
322 | |
323 | if (info_verbose) | |
2dc38344 PA |
324 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
325 | delete_thread (ptid); | |
3cee93ac CF |
326 | |
327 | for (th = &thread_head; | |
328 | th->next != NULL && th->next->id != id; | |
329 | th = th->next) | |
330 | continue; | |
331 | ||
332 | if (th->next != NULL) | |
24e60978 | 333 | { |
3cee93ac CF |
334 | thread_info *here = th->next; |
335 | th->next = here->next; | |
b8c9b27d | 336 | xfree (here); |
24e60978 SC |
337 | } |
338 | } | |
339 | ||
3cee93ac | 340 | static void |
dc05df57 | 341 | do_windows_fetch_inferior_registers (struct regcache *regcache, int r) |
24e60978 | 342 | { |
1e37c281 | 343 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
344 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
345 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 346 | long l; |
6c7de422 | 347 | |
3ade5333 | 348 | if (!current_thread) |
d6dc8049 CF |
349 | return; /* Windows sometimes uses a non-existent thread id in its |
350 | events */ | |
3ade5333 CF |
351 | |
352 | if (current_thread->reload_context) | |
353 | { | |
cb832706 | 354 | #ifdef __COPY_CONTEXT_SIZE |
a244bdca CF |
355 | if (have_saved_context) |
356 | { | |
357 | /* Lie about where the program actually is stopped since cygwin has informed us that | |
358 | we should consider the signal to have occurred at another location which is stored | |
359 | in "saved_context. */ | |
360 | memcpy (¤t_thread->context, &saved_context, __COPY_CONTEXT_SIZE); | |
361 | have_saved_context = 0; | |
362 | } | |
363 | else | |
cb832706 | 364 | #endif |
a244bdca CF |
365 | { |
366 | thread_info *th = current_thread; | |
367 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
368 | GetThreadContext (th->h, &th->context); | |
88616312 PM |
369 | /* Copy dr values from that thread. |
370 | But only if there were not modified since last stop. PR gdb/2388 */ | |
371 | if (!debug_registers_changed) | |
372 | { | |
373 | dr[0] = th->context.Dr0; | |
374 | dr[1] = th->context.Dr1; | |
375 | dr[2] = th->context.Dr2; | |
376 | dr[3] = th->context.Dr3; | |
377 | dr[6] = th->context.Dr6; | |
378 | dr[7] = th->context.Dr7; | |
379 | } | |
a244bdca | 380 | } |
3ade5333 CF |
381 | current_thread->reload_context = 0; |
382 | } | |
383 | ||
20a6ec49 | 384 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 385 | { |
8e860359 | 386 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 387 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 388 | } |
20a6ec49 | 389 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 390 | { |
8e860359 | 391 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 392 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 JM |
393 | } |
394 | else if (r >= 0) | |
56be3814 | 395 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 396 | else |
24e60978 | 397 | { |
20a6ec49 | 398 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
dc05df57 | 399 | do_windows_fetch_inferior_registers (regcache, r); |
24e60978 | 400 | } |
3cee93ac CF |
401 | } |
402 | ||
403 | static void | |
dc05df57 | 404 | windows_fetch_inferior_registers (struct regcache *regcache, int r) |
3cee93ac | 405 | { |
2dc38344 | 406 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 CF |
407 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
408 | thread id in its events */ | |
3ade5333 | 409 | if (current_thread) |
dc05df57 | 410 | do_windows_fetch_inferior_registers (regcache, r); |
3cee93ac CF |
411 | } |
412 | ||
413 | static void | |
dc05df57 | 414 | do_windows_store_inferior_registers (const struct regcache *regcache, int r) |
3cee93ac | 415 | { |
3ade5333 | 416 | if (!current_thread) |
d6dc8049 | 417 | /* Windows sometimes uses a non-existent thread id in its events */; |
3ade5333 | 418 | else if (r >= 0) |
56be3814 | 419 | regcache_raw_collect (regcache, r, |
822c9732 | 420 | ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
421 | else |
422 | { | |
40a6adc1 | 423 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
dc05df57 | 424 | do_windows_store_inferior_registers (regcache, r); |
24e60978 SC |
425 | } |
426 | } | |
427 | ||
3cee93ac CF |
428 | /* Store a new register value into the current thread context */ |
429 | static void | |
dc05df57 | 430 | windows_store_inferior_registers (struct regcache *regcache, int r) |
3cee93ac | 431 | { |
2dc38344 | 432 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 CF |
433 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
434 | thread id in its events */ | |
3ade5333 | 435 | if (current_thread) |
dc05df57 | 436 | do_windows_store_inferior_registers (regcache, r); |
3cee93ac | 437 | } |
24e60978 | 438 | |
1e37c281 | 439 | static int psapi_loaded = 0; |
33605d39 CF |
440 | static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, |
441 | LPDWORD); | |
442 | static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, | |
443 | DWORD); | |
444 | static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, | |
445 | DWORD); | |
446 | ||
447 | /* Get the name of a given module at at given base address. If base_address | |
448 | is zero return the first loaded module (which is always the name of the | |
449 | executable). */ | |
3ee6f623 | 450 | static int |
d3653bf6 | 451 | get_module_name (LPVOID base_address, char *dll_name_ret) |
1e37c281 JM |
452 | { |
453 | DWORD len; | |
454 | MODULEINFO mi; | |
455 | int i; | |
8e860359 | 456 | HMODULE dh_buf[1]; |
33605d39 | 457 | HMODULE *DllHandle = dh_buf; /* Set to temporary storage for initial query */ |
1e37c281 | 458 | DWORD cbNeeded; |
33605d39 CF |
459 | #ifdef __CYGWIN__ |
460 | char pathbuf[PATH_MAX + 1]; /* Temporary storage prior to converting to | |
461 | posix form */ | |
462 | #else | |
463 | char *pathbuf = dll_name_ret; /* Just copy directly to passed-in arg */ | |
464 | #endif | |
1e37c281 | 465 | |
33605d39 CF |
466 | /* If psapi_loaded < 0 either psapi.dll is not available or it does not contain |
467 | the needed functions. */ | |
468 | if (psapi_loaded <= 0) | |
469 | goto failed; | |
1e37c281 JM |
470 | |
471 | cbNeeded = 0; | |
33605d39 CF |
472 | /* Find size of buffer needed to handle list of modules loaded in inferior */ |
473 | if (!psapi_EnumProcessModules (current_process_handle, DllHandle, | |
474 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1e37c281 JM |
475 | goto failed; |
476 | ||
33605d39 | 477 | /* Allocate correct amount of space for module list */ |
8e860359 | 478 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
479 | if (!DllHandle) |
480 | goto failed; | |
481 | ||
33605d39 CF |
482 | /* Get the list of modules */ |
483 | if (!psapi_EnumProcessModules (current_process_handle, DllHandle, cbNeeded, | |
484 | &cbNeeded)) | |
1e37c281 JM |
485 | goto failed; |
486 | ||
29fe111d | 487 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 | 488 | { |
33605d39 CF |
489 | /* Get information on this module */ |
490 | if (!psapi_GetModuleInformation (current_process_handle, DllHandle[i], | |
491 | &mi, sizeof (mi))) | |
8a3fe4f8 | 492 | error (_("Can't get module info")); |
1e37c281 | 493 | |
d3653bf6 | 494 | if (!base_address || mi.lpBaseOfDll == base_address) |
33605d39 CF |
495 | { |
496 | /* Try to find the name of the given module */ | |
497 | len = psapi_GetModuleFileNameExA (current_process_handle, | |
498 | DllHandle[i], pathbuf, MAX_PATH); | |
499 | if (len == 0) | |
500 | error (_("Error getting dll name: %u."), (unsigned) GetLastError ()); | |
501 | #ifdef __CYGWIN__ | |
502 | /* Cygwin prefers that the path be in /x/y/z format */ | |
503 | cygwin_conv_to_full_posix_path (pathbuf, dll_name_ret); | |
504 | #endif | |
505 | return 1; /* success */ | |
506 | } | |
1e37c281 JM |
507 | } |
508 | ||
509 | failed: | |
510 | dll_name_ret[0] = '\0'; | |
33605d39 | 511 | return 0; /* failure */ |
1e37c281 JM |
512 | } |
513 | ||
450005e7 CF |
514 | /* Encapsulate the information required in a call to |
515 | symbol_file_add_args */ | |
8a892701 CF |
516 | struct safe_symbol_file_add_args |
517 | { | |
518 | char *name; | |
519 | int from_tty; | |
520 | struct section_addr_info *addrs; | |
521 | int mainline; | |
522 | int flags; | |
7c5c87c0 | 523 | struct ui_file *err, *out; |
8a892701 CF |
524 | struct objfile *ret; |
525 | }; | |
526 | ||
02e423b9 | 527 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 528 | struct lm_info |
02e423b9 | 529 | { |
d3653bf6 | 530 | LPVOID load_addr; |
3ee6f623 CF |
531 | }; |
532 | ||
533 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 534 | |
450005e7 CF |
535 | /* Call symbol_file_add with stderr redirected. We don't care if there |
536 | are errors. */ | |
8a892701 CF |
537 | static int |
538 | safe_symbol_file_add_stub (void *argv) | |
539 | { | |
3ee6f623 | 540 | #define p ((struct safe_symbol_file_add_args *) argv) |
8a892701 CF |
541 | p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags); |
542 | return !!p->ret; | |
543 | #undef p | |
544 | } | |
545 | ||
450005e7 | 546 | /* Restore gdb's stderr after calling symbol_file_add */ |
8a892701 | 547 | static void |
7c5c87c0 | 548 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 549 | { |
8e860359 | 550 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 551 | gdb_flush (gdb_stderr); |
7c5c87c0 | 552 | gdb_flush (gdb_stdout); |
d3ff4a77 | 553 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 554 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 555 | gdb_stderr = sp->err; |
9d3789f7 | 556 | gdb_stdout = sp->out; |
8e860359 | 557 | #undef sp |
8a892701 CF |
558 | } |
559 | ||
450005e7 | 560 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
561 | static struct objfile * |
562 | safe_symbol_file_add (char *name, int from_tty, | |
563 | struct section_addr_info *addrs, | |
564 | int mainline, int flags) | |
8a892701 CF |
565 | { |
566 | struct safe_symbol_file_add_args p; | |
567 | struct cleanup *cleanup; | |
568 | ||
7c5c87c0 | 569 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 570 | |
7c5c87c0 CF |
571 | p.err = gdb_stderr; |
572 | p.out = gdb_stdout; | |
450005e7 | 573 | gdb_flush (gdb_stderr); |
7c5c87c0 | 574 | gdb_flush (gdb_stdout); |
d3ff4a77 | 575 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 576 | gdb_stdout = ui_file_new (); |
8a892701 CF |
577 | p.name = name; |
578 | p.from_tty = from_tty; | |
579 | p.addrs = addrs; | |
580 | p.mainline = mainline; | |
581 | p.flags = flags; | |
582 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
583 | ||
584 | do_cleanups (cleanup); | |
585 | return p.ret; | |
586 | } | |
587 | ||
de1b3c3d | 588 | static struct so_list * |
dc05df57 | 589 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 590 | { |
3ee6f623 | 591 | struct so_list *so; |
3f8ad85b CF |
592 | char buf[MAX_PATH + 1]; |
593 | char cwd[MAX_PATH + 1]; | |
594 | char *p; | |
595 | WIN32_FIND_DATA w32_fd; | |
596 | HANDLE h = FindFirstFile(name, &w32_fd); | |
5633f842 | 597 | MEMORY_BASIC_INFORMATION m; |
3f8ad85b | 598 | |
6badb179 CF |
599 | if (h == INVALID_HANDLE_VALUE) |
600 | strcpy (buf, name); | |
601 | else | |
3f8ad85b | 602 | { |
c914e0cc CF |
603 | FindClose (h); |
604 | strcpy (buf, name); | |
605 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
606 | { | |
607 | p = strrchr (buf, '\\'); | |
608 | if (p) | |
609 | p[1] = '\0'; | |
610 | SetCurrentDirectory (buf); | |
611 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
612 | SetCurrentDirectory (cwd); | |
613 | } | |
3f8ad85b CF |
614 | } |
615 | ||
3ee6f623 CF |
616 | if (strcasecmp (buf, "ntdll.dll") == 0) |
617 | { | |
618 | GetSystemDirectory (buf, sizeof (buf)); | |
619 | strcat (buf, "\\ntdll.dll"); | |
620 | } | |
3929abe9 | 621 | so = XZALLOC (struct so_list); |
3ee6f623 CF |
622 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); |
623 | so->lm_info->load_addr = load_addr; | |
de1b3c3d | 624 | strcpy (so->so_original_name, name); |
10325bc5 PA |
625 | #ifndef __CYGWIN__ |
626 | strcpy (so->so_name, buf); | |
627 | #else | |
628 | cygwin_conv_to_posix_path (buf, so->so_name); | |
de1b3c3d PA |
629 | /* Record cygwin1.dll .text start/end. */ |
630 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
631 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
632 | { | |
633 | bfd *abfd; | |
634 | asection *text = NULL; | |
635 | CORE_ADDR text_vma; | |
8e860359 | 636 | |
610dd7f9 | 637 | abfd = bfd_openr (so->so_name, "pei-i386"); |
a244bdca | 638 | |
de1b3c3d PA |
639 | if (!abfd) |
640 | return so; | |
641 | ||
642 | if (bfd_check_format (abfd, bfd_object)) | |
643 | text = bfd_get_section_by_name (abfd, ".text"); | |
644 | ||
645 | if (!text) | |
646 | { | |
647 | bfd_close (abfd); | |
648 | return so; | |
649 | } | |
650 | ||
651 | /* The symbols in a dll are offset by 0x1000, which is the the | |
652 | offset from 0 of the first byte in an image - because of the | |
653 | file header and the section alignment. */ | |
dc05df57 CF |
654 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) load_addr + 0x1000); |
655 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); | |
de1b3c3d PA |
656 | |
657 | bfd_close (abfd); | |
658 | } | |
10325bc5 | 659 | #endif |
de1b3c3d PA |
660 | |
661 | return so; | |
8e860359 CF |
662 | } |
663 | ||
3ee6f623 | 664 | static char * |
dfe7f3ac CF |
665 | get_image_name (HANDLE h, void *address, int unicode) |
666 | { | |
667 | static char buf[(2 * MAX_PATH) + 1]; | |
668 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); | |
669 | char *address_ptr; | |
670 | int len = 0; | |
671 | char b[2]; | |
5732a500 | 672 | SIZE_T done; |
dfe7f3ac CF |
673 | |
674 | /* Attempt to read the name of the dll that was detected. | |
675 | This is documented to work only when actively debugging | |
676 | a program. It will not work for attached processes. */ | |
677 | if (address == NULL) | |
678 | return NULL; | |
679 | ||
dfe7f3ac CF |
680 | /* See if we could read the address of a string, and that the |
681 | address isn't null. */ | |
9f476a01 | 682 | if (!ReadProcessMemory (h, address, &address_ptr, sizeof (address_ptr), &done) |
6f17862b | 683 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
684 | return NULL; |
685 | ||
686 | /* Find the length of the string */ | |
6f17862b CF |
687 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
688 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
689 | continue; | |
dfe7f3ac CF |
690 | |
691 | if (!unicode) | |
692 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
693 | else | |
694 | { | |
695 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
696 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
697 | &done); | |
698 | ||
699 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0); | |
700 | } | |
701 | ||
702 | return buf; | |
703 | } | |
704 | ||
24e60978 SC |
705 | /* Wait for child to do something. Return pid of child, or -1 in case |
706 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 707 | static int |
0a65a603 | 708 | handle_load_dll (void *dummy) |
24e60978 | 709 | { |
3a4b77d8 | 710 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
3cee93ac | 711 | char dll_buf[MAX_PATH + 1]; |
450005e7 | 712 | char *dll_name = NULL; |
3cee93ac | 713 | |
3a4b77d8 | 714 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 715 | |
d3653bf6 | 716 | if (!get_module_name (event->lpBaseOfDll, dll_buf)) |
8e860359 | 717 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 718 | |
1e37c281 | 719 | dll_name = dll_buf; |
24e60978 | 720 | |
dfe7f3ac | 721 | if (*dll_name == '\0') |
de1b3c3d PA |
722 | dll_name = get_image_name (current_process_handle, |
723 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
724 | if (!dll_name) |
725 | return 1; | |
726 | ||
dc05df57 | 727 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 728 | solib_end = solib_end->next; |
450005e7 | 729 | |
31b060a2 | 730 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %p.\n", solib_end->so_name, |
d3653bf6 | 731 | solib_end->lm_info->load_addr)); |
7488902c | 732 | |
450005e7 CF |
733 | return 1; |
734 | } | |
735 | ||
3ee6f623 | 736 | static void |
dc05df57 | 737 | windows_free_so (struct so_list *so) |
3ee6f623 | 738 | { |
3ee6f623 CF |
739 | if (so->lm_info) |
740 | xfree (so->lm_info); | |
de1b3c3d | 741 | xfree (so); |
3cb8e7f6 CF |
742 | } |
743 | ||
d3ff4a77 | 744 | static int |
0a65a603 | 745 | handle_unload_dll (void *dummy) |
d3ff4a77 | 746 | { |
d3653bf6 | 747 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 748 | struct so_list *so; |
d3ff4a77 CF |
749 | |
750 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 751 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 752 | { |
3ee6f623 | 753 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
754 | so->next = sodel->next; |
755 | if (!so->next) | |
756 | solib_end = so; | |
7488902c PM |
757 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
758 | ||
dc05df57 | 759 | windows_free_so (sodel); |
3929abe9 | 760 | solib_add (NULL, 0, NULL, auto_solib_add); |
d3ff4a77 CF |
761 | return 1; |
762 | } | |
3929abe9 | 763 | |
a588db63 | 764 | error (_("Error: dll starting at %p not found."), lpBaseOfDll); |
d3ff4a77 CF |
765 | |
766 | return 0; | |
767 | } | |
768 | ||
450005e7 | 769 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 770 | static void |
dc05df57 | 771 | windows_clear_solib (void) |
450005e7 | 772 | { |
450005e7 CF |
773 | solib_start.next = NULL; |
774 | solib_end = &solib_start; | |
450005e7 | 775 | } |
295732ea | 776 | |
450005e7 CF |
777 | /* Load DLL symbol info. */ |
778 | void | |
7470a420 | 779 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 780 | { |
8e860359 | 781 | int n; |
450005e7 | 782 | dont_repeat (); |
8e860359 | 783 | |
450005e7 | 784 | if (args == NULL) |
8a3fe4f8 | 785 | error (_("dll-symbols requires a file name")); |
450005e7 | 786 | |
8e860359 CF |
787 | n = strlen (args); |
788 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
789 | { | |
790 | char *newargs = (char *) alloca (n + 4 + 1); | |
791 | strcpy (newargs, args); | |
792 | strcat (newargs, ".dll"); | |
793 | args = newargs; | |
794 | } | |
795 | ||
7470a420 | 796 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 797 | } |
450005e7 | 798 | |
3cee93ac CF |
799 | /* Handle DEBUG_STRING output from child process. |
800 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
801 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
802 | static int | |
803 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
804 | { | |
a244bdca CF |
805 | char *s = NULL; |
806 | int retval = 0; | |
3cee93ac CF |
807 | |
808 | if (!target_read_string | |
2c647436 PM |
809 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
810 | &s, 1024, 0) | |
3cee93ac | 811 | || !s || !*s) |
a244bdca CF |
812 | /* nothing to do */; |
813 | else if (strncmp (s, _CYGWIN_SIGNAL_STRING, sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0) | |
3cee93ac | 814 | { |
10325bc5 | 815 | #ifdef __CYGWIN__ |
d3a09475 | 816 | if (strncmp (s, "cYg", 3) != 0) |
10325bc5 | 817 | #endif |
8a3fe4f8 | 818 | warning (("%s"), s); |
3cee93ac | 819 | } |
cb832706 | 820 | #ifdef __COPY_CONTEXT_SIZE |
d3a09475 | 821 | else |
3cee93ac | 822 | { |
a244bdca CF |
823 | /* Got a cygwin signal marker. A cygwin signal is followed by the signal number |
824 | itself and then optionally followed by the thread id and address to saved context | |
825 | within the DLL. If these are supplied, then the given thread is assumed to have | |
826 | issued the signal and the context from the thread is assumed to be stored at the | |
827 | given address in the inferior. Tell gdb to treat this like a real signal. */ | |
3cee93ac | 828 | char *p; |
3929abe9 | 829 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
a244bdca | 830 | int gotasig = target_signal_from_host (sig); |
0714f9bf SS |
831 | ourstatus->value.sig = gotasig; |
832 | if (gotasig) | |
a244bdca CF |
833 | { |
834 | LPCVOID x; | |
835 | DWORD n; | |
836 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
837 | retval = strtoul (p, &p, 0); | |
838 | if (!retval) | |
839 | retval = main_thread_id; | |
840 | else if ((x = (LPCVOID) strtoul (p, &p, 0)) | |
841 | && ReadProcessMemory (current_process_handle, x, | |
842 | &saved_context, __COPY_CONTEXT_SIZE, &n) | |
843 | && n == __COPY_CONTEXT_SIZE) | |
844 | have_saved_context = 1; | |
845 | current_event.dwThreadId = retval; | |
846 | } | |
3cee93ac | 847 | } |
cb832706 | 848 | #endif |
3cee93ac | 849 | |
a244bdca CF |
850 | if (s) |
851 | xfree (s); | |
852 | return retval; | |
3cee93ac | 853 | } |
24e60978 | 854 | |
c1748f97 PM |
855 | static int |
856 | display_selector (HANDLE thread, DWORD sel) | |
857 | { | |
858 | LDT_ENTRY info; | |
859 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
860 | { | |
861 | int base, limit; | |
862 | printf_filtered ("0x%03lx: ", sel); | |
863 | if (!info.HighWord.Bits.Pres) | |
baa93fa6 CF |
864 | { |
865 | puts_filtered ("Segment not present\n"); | |
866 | return 0; | |
867 | } | |
c1748f97 PM |
868 | base = (info.HighWord.Bits.BaseHi << 24) + |
869 | (info.HighWord.Bits.BaseMid << 16) | |
870 | + info.BaseLow; | |
871 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
872 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 873 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
874 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
875 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 876 | puts_filtered(" 32-bit "); |
c1748f97 | 877 | else |
baa93fa6 | 878 | puts_filtered(" 16-bit "); |
c1748f97 PM |
879 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
880 | { | |
881 | case 0: | |
baa93fa6 CF |
882 | puts_filtered ("Data (Read-Only, Exp-up"); |
883 | break; | |
c1748f97 | 884 | case 1: |
baa93fa6 CF |
885 | puts_filtered ("Data (Read/Write, Exp-up"); |
886 | break; | |
c1748f97 | 887 | case 2: |
baa93fa6 CF |
888 | puts_filtered ("Unused segment ("); |
889 | break; | |
c1748f97 | 890 | case 3: |
baa93fa6 CF |
891 | puts_filtered ("Data (Read/Write, Exp-down"); |
892 | break; | |
c1748f97 | 893 | case 4: |
baa93fa6 CF |
894 | puts_filtered ("Code (Exec-Only, N.Conf"); |
895 | break; | |
c1748f97 | 896 | case 5: |
baa93fa6 | 897 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
898 | break; |
899 | case 6: | |
baa93fa6 | 900 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
901 | break; |
902 | case 7: | |
baa93fa6 | 903 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
904 | break; |
905 | default: | |
906 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
907 | } | |
908 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 909 | puts_filtered(", N.Acc"); |
c1748f97 PM |
910 | puts_filtered (")\n"); |
911 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
912 | puts_filtered("System selector "); | |
913 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
914 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 915 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
916 | else |
917 | puts_filtered ("Byte granular.\n"); | |
918 | return 1; | |
919 | } | |
920 | else | |
921 | { | |
922 | printf_filtered ("Invalid selector 0x%lx.\n",sel); | |
923 | return 0; | |
924 | } | |
925 | } | |
926 | ||
927 | static void | |
928 | display_selectors (char * args, int from_tty) | |
929 | { | |
930 | if (!current_thread) | |
931 | { | |
932 | puts_filtered ("Impossible to display selectors now.\n"); | |
933 | return; | |
934 | } | |
935 | if (!args) | |
936 | { | |
937 | ||
938 | puts_filtered ("Selector $cs\n"); | |
939 | display_selector (current_thread->h, | |
baa93fa6 | 940 | current_thread->context.SegCs); |
c1748f97 PM |
941 | puts_filtered ("Selector $ds\n"); |
942 | display_selector (current_thread->h, | |
baa93fa6 | 943 | current_thread->context.SegDs); |
c1748f97 PM |
944 | puts_filtered ("Selector $es\n"); |
945 | display_selector (current_thread->h, | |
baa93fa6 | 946 | current_thread->context.SegEs); |
c1748f97 PM |
947 | puts_filtered ("Selector $ss\n"); |
948 | display_selector (current_thread->h, | |
baa93fa6 | 949 | current_thread->context.SegSs); |
c1748f97 PM |
950 | puts_filtered ("Selector $fs\n"); |
951 | display_selector (current_thread->h, | |
952 | current_thread->context.SegFs); | |
953 | puts_filtered ("Selector $gs\n"); | |
954 | display_selector (current_thread->h, | |
baa93fa6 | 955 | current_thread->context.SegGs); |
c1748f97 PM |
956 | } |
957 | else | |
958 | { | |
959 | int sel; | |
960 | sel = parse_and_eval_long (args); | |
961 | printf_filtered ("Selector \"%s\"\n",args); | |
962 | display_selector (current_thread->h, sel); | |
963 | } | |
964 | } | |
965 | ||
966 | static struct cmd_list_element *info_w32_cmdlist = NULL; | |
967 | ||
968 | static void | |
969 | info_w32_command (char *args, int from_tty) | |
970 | { | |
971 | help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout); | |
972 | } | |
973 | ||
974 | ||
7393af7c | 975 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
31b060a2 | 976 | printf_unfiltered ("gdb: Target exception %s at %p\n", x, \ |
5732a500 | 977 | current_event.u.Exception.ExceptionRecord.ExceptionAddress) |
7393af7c | 978 | |
36339ecd | 979 | static int |
450005e7 | 980 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 981 | { |
3cee93ac | 982 | thread_info *th; |
29fe111d | 983 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 984 | |
29fe111d | 985 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 986 | |
3cee93ac CF |
987 | /* Record the context of the current thread */ |
988 | th = thread_rec (current_event.dwThreadId, -1); | |
24e60978 | 989 | |
29fe111d | 990 | switch (code) |
24e60978 | 991 | { |
1ef980b9 | 992 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c PM |
993 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
994 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
10325bc5 | 995 | #ifdef __CYGWIN__ |
8da8e0b3 | 996 | { |
a244bdca CF |
997 | /* See if the access violation happened within the cygwin DLL itself. Cygwin uses |
998 | a kind of exception handling to deal with passed-in invalid addresses. gdb | |
999 | should not treat these as real SEGVs since they will be silently handled by | |
1000 | cygwin. A real SEGV will (theoretically) be caught by cygwin later in the process | |
1001 | and will be sent as a cygwin-specific-signal. So, ignore SEGVs if they show up | |
1002 | within the text segment of the DLL itself. */ | |
8da8e0b3 | 1003 | char *fn; |
dc05df57 | 1004 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) current_event.u.Exception.ExceptionRecord.ExceptionAddress; |
09280ddf | 1005 | if ((!cygwin_exceptions && (addr >= cygwin_load_start && addr < cygwin_load_end)) |
a244bdca CF |
1006 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
1007 | && strncmp (fn, "KERNEL32!IsBad", strlen ("KERNEL32!IsBad")) == 0)) | |
8da8e0b3 CF |
1008 | return 0; |
1009 | } | |
10325bc5 | 1010 | #endif |
7393af7c PM |
1011 | break; |
1012 | case STATUS_STACK_OVERFLOW: | |
1013 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
1ef980b9 | 1014 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
1015 | break; |
1016 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1017 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
1018 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1019 | break; | |
1020 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1021 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
1022 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1023 | break; | |
1024 | case STATUS_FLOAT_INEXACT_RESULT: | |
1025 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
1026 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1027 | break; | |
1028 | case STATUS_FLOAT_INVALID_OPERATION: | |
1029 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1030 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1031 | break; | |
1032 | case STATUS_FLOAT_OVERFLOW: | |
1033 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1034 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1035 | break; | |
1036 | case STATUS_FLOAT_STACK_CHECK: | |
1037 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1038 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 | 1039 | break; |
3b7c8b74 | 1040 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1041 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1042 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1043 | break; | |
3b7c8b74 | 1044 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1045 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1046 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1047 | break; | |
3b7c8b74 | 1048 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1049 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
3b7c8b74 | 1050 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
3b7c8b74 | 1051 | break; |
7393af7c PM |
1052 | case STATUS_INTEGER_OVERFLOW: |
1053 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1054 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 SC |
1055 | break; |
1056 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1057 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
1ef980b9 SC |
1058 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1059 | break; | |
1060 | case DBG_CONTROL_C: | |
7393af7c | 1061 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
1ef980b9 | 1062 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1063 | break; |
1064 | case DBG_CONTROL_BREAK: | |
7393af7c | 1065 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1066 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
1ef980b9 SC |
1067 | break; |
1068 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1069 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
1ef980b9 SC |
1070 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1071 | break; | |
8227c82d | 1072 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1073 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1074 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1075 | break; | |
1076 | case EXCEPTION_PRIV_INSTRUCTION: | |
1077 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1078 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1079 | break; | |
1080 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1081 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1082 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1083 | break; | |
1ef980b9 | 1084 | default: |
a244bdca | 1085 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1086 | if (current_event.u.Exception.dwFirstChance) |
a244bdca | 1087 | return -1; |
31b060a2 | 1088 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at %p\n", |
3a4b77d8 | 1089 | current_event.u.Exception.ExceptionRecord.ExceptionCode, |
5732a500 | 1090 | current_event.u.Exception.ExceptionRecord.ExceptionAddress); |
24e60978 | 1091 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 1092 | break; |
24e60978 | 1093 | } |
24e60978 | 1094 | exception_count++; |
7393af7c | 1095 | last_sig = ourstatus->value.sig; |
36339ecd | 1096 | return 1; |
24e60978 SC |
1097 | } |
1098 | ||
3cee93ac CF |
1099 | /* Resume all artificially suspended threads if we are continuing |
1100 | execution */ | |
1101 | static BOOL | |
dc05df57 | 1102 | windows_continue (DWORD continue_status, int id) |
3cee93ac CF |
1103 | { |
1104 | int i; | |
1105 | thread_info *th; | |
1106 | BOOL res; | |
1107 | ||
7393af7c PM |
1108 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, %s);\n", |
1109 | current_event.dwProcessId, current_event.dwThreadId, | |
dfe7f3ac | 1110 | continue_status == DBG_CONTINUE ? |
7393af7c | 1111 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1112 | |
1113 | for (th = &thread_head; (th = th->next) != NULL;) | |
1114 | if ((id == -1 || id == (int) th->id) | |
1115 | && th->suspended) | |
1116 | { | |
1117 | if (debug_registers_changed) | |
1118 | { | |
1119 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1120 | th->context.Dr0 = dr[0]; | |
1121 | th->context.Dr1 = dr[1]; | |
1122 | th->context.Dr2 = dr[2]; | |
1123 | th->context.Dr3 = dr[3]; | |
1124 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1125 | th->context.Dr7 = dr[7]; | |
1126 | } | |
1127 | if (th->context.ContextFlags) | |
1128 | { | |
1129 | CHECK (SetThreadContext (th->h, &th->context)); | |
1130 | th->context.ContextFlags = 0; | |
1131 | } | |
1132 | if (th->suspended > 0) | |
1133 | (void) ResumeThread (th->h); | |
1134 | th->suspended = 0; | |
1135 | } | |
1136 | ||
0714f9bf SS |
1137 | res = ContinueDebugEvent (current_event.dwProcessId, |
1138 | current_event.dwThreadId, | |
1139 | continue_status); | |
3cee93ac | 1140 | |
fa4ba8da | 1141 | debug_registers_changed = 0; |
3cee93ac CF |
1142 | return res; |
1143 | } | |
1144 | ||
d6dc8049 CF |
1145 | /* Called in pathological case where Windows fails to send a |
1146 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1147 | static DWORD |
5439edaa | 1148 | fake_create_process (void) |
3ade5333 CF |
1149 | { |
1150 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1151 | current_event.dwProcessId); | |
bf25528d CF |
1152 | if (current_process_handle != NULL) |
1153 | open_process_used = 1; | |
1154 | else | |
1155 | { | |
1156 | error (_("OpenProcess call failed, GetLastError = %lud\n"), | |
1157 | GetLastError ()); | |
1158 | /* We can not debug anything in that case. */ | |
1159 | } | |
3ade5333 | 1160 | main_thread_id = current_event.dwThreadId; |
dc05df57 CF |
1161 | current_thread = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
1162 | current_event.dwThreadId), | |
1163 | current_event.u.CreateThread.hThread); | |
3ade5333 CF |
1164 | return main_thread_id; |
1165 | } | |
1166 | ||
a244bdca | 1167 | static void |
dc05df57 | 1168 | windows_resume (ptid_t ptid, int step, enum target_signal sig) |
a244bdca CF |
1169 | { |
1170 | thread_info *th; | |
1171 | DWORD continue_status = DBG_CONTINUE; | |
1172 | ||
2dc38344 PA |
1173 | /* A specific PTID means `step only this thread id'. */ |
1174 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1175 | ||
1176 | /* If we're continuing all threads, it's the current inferior that | |
1177 | should be handled specially. */ | |
1178 | if (resume_all) | |
1179 | ptid = inferior_ptid; | |
a244bdca CF |
1180 | |
1181 | if (sig != TARGET_SIGNAL_0) | |
1182 | { | |
1183 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1184 | { | |
1185 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1186 | } | |
1187 | else if (sig == last_sig) | |
1188 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1189 | else | |
1190 | #if 0 | |
1191 | /* This code does not seem to work, because | |
1192 | the kernel does probably not consider changes in the ExceptionRecord | |
1193 | structure when passing the exception to the inferior. | |
1194 | Note that this seems possible in the exception handler itself. */ | |
1195 | { | |
1196 | int i; | |
1197 | for (i = 0; xlate[i].them != -1; i++) | |
1198 | if (xlate[i].us == sig) | |
1199 | { | |
1200 | current_event.u.Exception.ExceptionRecord.ExceptionCode = | |
1201 | xlate[i].them; | |
1202 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1203 | break; | |
1204 | } | |
1205 | if (continue_status == DBG_CONTINUE) | |
1206 | { | |
1207 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1208 | } | |
1209 | } | |
1210 | #endif | |
1211 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", | |
1212 | last_sig)); | |
1213 | } | |
1214 | ||
1215 | last_sig = TARGET_SIGNAL_0; | |
1216 | ||
dc05df57 | 1217 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1218 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca CF |
1219 | |
1220 | /* Get context for currently selected thread */ | |
2dc38344 | 1221 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1222 | if (th) |
1223 | { | |
1224 | if (step) | |
1225 | { | |
1226 | /* Single step by setting t bit */ | |
dc05df57 | 1227 | windows_fetch_inferior_registers (get_current_regcache (), |
3e8c568d | 1228 | gdbarch_ps_regnum (current_gdbarch)); |
a244bdca CF |
1229 | th->context.EFlags |= FLAG_TRACE_BIT; |
1230 | } | |
1231 | ||
1232 | if (th->context.ContextFlags) | |
1233 | { | |
1234 | if (debug_registers_changed) | |
1235 | { | |
1236 | th->context.Dr0 = dr[0]; | |
1237 | th->context.Dr1 = dr[1]; | |
1238 | th->context.Dr2 = dr[2]; | |
1239 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1240 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1241 | th->context.Dr7 = dr[7]; |
1242 | } | |
1243 | CHECK (SetThreadContext (th->h, &th->context)); | |
1244 | th->context.ContextFlags = 0; | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | /* Allow continuing with the same signal that interrupted us. | |
1249 | Otherwise complain. */ | |
1250 | ||
2dc38344 | 1251 | if (resume_all) |
dc05df57 | 1252 | windows_continue (continue_status, -1); |
2dc38344 | 1253 | else |
dc05df57 | 1254 | windows_continue (continue_status, ptid_get_tid (ptid)); |
a244bdca CF |
1255 | } |
1256 | ||
8a892701 CF |
1257 | /* Get the next event from the child. Return 1 if the event requires |
1258 | handling by WFI (or whatever). | |
1259 | */ | |
1e37c281 | 1260 | static int |
dc05df57 | 1261 | get_windows_debug_event (int pid, struct target_waitstatus *ourstatus) |
1e37c281 JM |
1262 | { |
1263 | BOOL debug_event; | |
8a892701 | 1264 | DWORD continue_status, event_code; |
87a45c96 | 1265 | thread_info *th; |
8a892701 | 1266 | static thread_info dummy_thread_info; |
450005e7 | 1267 | int retval = 0; |
1e37c281 | 1268 | |
7393af7c | 1269 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1270 | |
8a892701 | 1271 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1272 | goto out; |
1e37c281 JM |
1273 | |
1274 | event_count++; | |
1275 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1276 | |
8a892701 | 1277 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1278 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1279 | th = NULL; |
a244bdca | 1280 | have_saved_context = 0; |
8a892701 CF |
1281 | |
1282 | switch (event_code) | |
1e37c281 JM |
1283 | { |
1284 | case CREATE_THREAD_DEBUG_EVENT: | |
1285 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1286 | (unsigned) current_event.dwProcessId, |
1287 | (unsigned) current_event.dwThreadId, | |
1288 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1289 | if (saw_create != 1) |
3ade5333 | 1290 | { |
181e7f93 PA |
1291 | struct inferior *inf; |
1292 | inf = find_inferior_pid (current_event.dwProcessId); | |
1293 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1294 | { |
d6dc8049 CF |
1295 | /* Kludge around a Windows bug where first event is a create |
1296 | thread event. Caused when attached process does not have | |
1297 | a main thread. */ | |
3a3e9ee3 | 1298 | retval = fake_create_process (); |
181e7f93 PA |
1299 | if (retval) |
1300 | saw_create++; | |
3ade5333 CF |
1301 | } |
1302 | break; | |
1303 | } | |
1e37c281 | 1304 | /* Record the existence of this thread */ |
450005e7 | 1305 | retval = current_event.dwThreadId; |
dc05df57 | 1306 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 PA |
1307 | current_event.dwThreadId), |
1308 | current_event.u.CreateThread.hThread); | |
1e37c281 JM |
1309 | break; |
1310 | ||
1311 | case EXIT_THREAD_DEBUG_EVENT: | |
1312 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1313 | (unsigned) current_event.dwProcessId, |
1314 | (unsigned) current_event.dwThreadId, | |
1315 | "EXIT_THREAD_DEBUG_EVENT")); | |
87a45c96 CF |
1316 | if (current_event.dwThreadId != main_thread_id) |
1317 | { | |
dc05df57 | 1318 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1319 | current_event.dwThreadId)); |
87a45c96 CF |
1320 | th = &dummy_thread_info; |
1321 | } | |
1e37c281 JM |
1322 | break; |
1323 | ||
1324 | case CREATE_PROCESS_DEBUG_EVENT: | |
1325 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1326 | (unsigned) current_event.dwProcessId, |
1327 | (unsigned) current_event.dwThreadId, | |
1328 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1329 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1330 | if (++saw_create != 1) |
bf25528d | 1331 | break; |
1e37c281 | 1332 | |
dfe7f3ac | 1333 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1334 | if (main_thread_id) |
dc05df57 | 1335 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1336 | main_thread_id)); |
9d3789f7 | 1337 | main_thread_id = current_event.dwThreadId; |
1e37c281 | 1338 | /* Add the main thread */ |
dc05df57 | 1339 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1340 | current_event.dwThreadId), |
8a892701 | 1341 | current_event.u.CreateProcessInfo.hThread); |
3a3e9ee3 | 1342 | retval = current_event.dwThreadId; |
1e37c281 JM |
1343 | break; |
1344 | ||
1345 | case EXIT_PROCESS_DEBUG_EVENT: | |
1346 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1347 | (unsigned) current_event.dwProcessId, |
1348 | (unsigned) current_event.dwThreadId, | |
1349 | "EXIT_PROCESS_DEBUG_EVENT")); | |
dfe7f3ac CF |
1350 | if (saw_create != 1) |
1351 | break; | |
1e37c281 JM |
1352 | ourstatus->kind = TARGET_WAITKIND_EXITED; |
1353 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
9d3789f7 | 1354 | retval = main_thread_id; |
8a892701 | 1355 | break; |
1e37c281 JM |
1356 | |
1357 | case LOAD_DLL_DEBUG_EVENT: | |
1358 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1359 | (unsigned) current_event.dwProcessId, |
1360 | (unsigned) current_event.dwThreadId, | |
1361 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1362 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1363 | if (saw_create != 1) |
1364 | break; | |
8a892701 | 1365 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1366 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1367 | ourstatus->value.integer = 0; | |
9d3789f7 | 1368 | retval = main_thread_id; |
1e37c281 JM |
1369 | break; |
1370 | ||
1371 | case UNLOAD_DLL_DEBUG_EVENT: | |
1372 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1373 | (unsigned) current_event.dwProcessId, |
1374 | (unsigned) current_event.dwThreadId, | |
1375 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1376 | if (saw_create != 1) |
1377 | break; | |
d3ff4a77 | 1378 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1379 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1380 | ourstatus->value.integer = 0; | |
1381 | retval = main_thread_id; | |
d3ff4a77 | 1382 | break; |
1e37c281 JM |
1383 | |
1384 | case EXCEPTION_DEBUG_EVENT: | |
1385 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
8a892701 CF |
1386 | (unsigned) current_event.dwProcessId, |
1387 | (unsigned) current_event.dwThreadId, | |
1388 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1389 | if (saw_create != 1) |
1390 | break; | |
a244bdca CF |
1391 | switch (handle_exception (ourstatus)) |
1392 | { | |
1393 | case 0: | |
1394 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1395 | break; | |
1396 | case 1: | |
1397 | retval = current_event.dwThreadId; | |
1398 | break; | |
1399 | case -1: | |
1400 | last_sig = 1; | |
1401 | continue_status = -1; | |
1402 | break; | |
1403 | } | |
1e37c281 JM |
1404 | break; |
1405 | ||
8a892701 | 1406 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
1e37c281 | 1407 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", |
8a892701 CF |
1408 | (unsigned) current_event.dwProcessId, |
1409 | (unsigned) current_event.dwThreadId, | |
1410 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1411 | if (saw_create != 1) |
1412 | break; | |
a244bdca | 1413 | retval = handle_output_debug_string (ourstatus); |
1e37c281 | 1414 | break; |
9d3789f7 | 1415 | |
1e37c281 | 1416 | default: |
dfe7f3ac CF |
1417 | if (saw_create != 1) |
1418 | break; | |
29fe111d CF |
1419 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1420 | (DWORD) current_event.dwProcessId, | |
1421 | (DWORD) current_event.dwThreadId); | |
1422 | printf_unfiltered (" unknown event code %ld\n", | |
1e37c281 JM |
1423 | current_event.dwDebugEventCode); |
1424 | break; | |
1425 | } | |
1426 | ||
dfe7f3ac | 1427 | if (!retval || saw_create != 1) |
a244bdca CF |
1428 | { |
1429 | if (continue_status == -1) | |
dc05df57 | 1430 | windows_resume (minus_one_ptid, 0, 1); |
a244bdca | 1431 | else |
dc05df57 | 1432 | CHECK (windows_continue (continue_status, -1)); |
a244bdca | 1433 | } |
450005e7 | 1434 | else |
9d3789f7 | 1435 | { |
2dc38344 PA |
1436 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
1437 | retval); | |
3ade5333 | 1438 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1439 | } |
1e37c281 JM |
1440 | |
1441 | out: | |
450005e7 | 1442 | return retval; |
1e37c281 JM |
1443 | } |
1444 | ||
2dc38344 | 1445 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1446 | static ptid_t |
dc05df57 | 1447 | windows_wait (ptid_t ptid, struct target_waitstatus *ourstatus) |
24e60978 | 1448 | { |
2dc38344 | 1449 | int pid = -1; |
39f77062 | 1450 | |
c44537cf CV |
1451 | target_terminal_ours (); |
1452 | ||
24e60978 SC |
1453 | /* We loop when we get a non-standard exception rather than return |
1454 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1455 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 SC |
1456 | the birth or death of threads, which mean that the current thread |
1457 | isn't necessarily what you think it is. */ | |
1458 | ||
1459 | while (1) | |
450005e7 | 1460 | { |
c57918b2 JB |
1461 | int retval; |
1462 | ||
1463 | /* Ignore CTRL+C signals while waiting for a debug event. | |
1464 | FIXME: brobecker/2008-05-20: When the user presses CTRL+C while | |
1465 | the inferior is running, both the inferior and GDB receive the | |
1466 | associated signal. If the inferior receives the signal first | |
1467 | and the delay until GDB receives that signal is sufficiently long, | |
1468 | GDB can sometimes receive the SIGINT after we have unblocked | |
1469 | the CTRL+C handler. This would lead to the debugger to stop | |
1470 | prematurely while handling the new-thread event that comes | |
1471 | with the handling of the SIGINT inside the inferior, and then | |
1472 | stop again immediately when the user tries to resume the execution | |
1473 | in the inferior. This is a classic race, and it would be nice | |
1474 | to find a better solution to that problem. But in the meantime, | |
1475 | the current approach already greatly mitigate this issue. */ | |
1476 | SetConsoleCtrlHandler (NULL, TRUE); | |
dc05df57 | 1477 | retval = get_windows_debug_event (pid, ourstatus); |
c57918b2 JB |
1478 | SetConsoleCtrlHandler (NULL, FALSE); |
1479 | ||
450005e7 | 1480 | if (retval) |
2dc38344 | 1481 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1482 | else |
1483 | { | |
1484 | int detach = 0; | |
3cee93ac | 1485 | |
98bbd631 AC |
1486 | if (deprecated_ui_loop_hook != NULL) |
1487 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1488 | |
450005e7 | 1489 | if (detach) |
dc05df57 | 1490 | windows_kill_inferior (); |
450005e7 CF |
1491 | } |
1492 | } | |
24e60978 SC |
1493 | } |
1494 | ||
9d3789f7 | 1495 | static void |
dc05df57 | 1496 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 CF |
1497 | { |
1498 | extern int stop_after_trap; | |
fa4ba8da | 1499 | int i; |
d6b48e9c | 1500 | struct inferior *inf; |
2020b7ab | 1501 | struct thread_info *tp; |
9d3789f7 | 1502 | |
7393af7c | 1503 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1504 | event_count = 0; |
1505 | exception_count = 0; | |
bf25528d | 1506 | open_process_used = 0; |
fa4ba8da | 1507 | debug_registers_changed = 0; |
dfe7f3ac | 1508 | debug_registers_used = 0; |
fa4ba8da PM |
1509 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1510 | dr[i] = 0; | |
10325bc5 | 1511 | #ifdef __CYGWIN__ |
de1b3c3d | 1512 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1513 | #endif |
9d3789f7 CF |
1514 | current_event.dwProcessId = pid; |
1515 | memset (¤t_event, 0, sizeof (current_event)); | |
0795be10 | 1516 | push_target (ops); |
cb851954 | 1517 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1518 | windows_clear_solib (); |
9d3789f7 CF |
1519 | clear_proceed_status (); |
1520 | init_wait_for_inferior (); | |
1521 | ||
d6b48e9c | 1522 | inf = add_inferior (pid); |
181e7f93 | 1523 | inf->attach_flag = attaching; |
7f9f62ba | 1524 | |
9f9d052e PM |
1525 | /* Make the new process the current inferior, so terminal handling |
1526 | can rely on it. When attaching, we don't know about any thread | |
1527 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1528 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1529 | inferior_ptid = pid_to_ptid (pid); |
1530 | ||
c44537cf | 1531 | terminal_init_inferior_with_pgrp (pid); |
9d3789f7 CF |
1532 | target_terminal_inferior (); |
1533 | ||
d6b48e9c | 1534 | inf->stop_soon = STOP_QUIETLY; |
9d3789f7 CF |
1535 | while (1) |
1536 | { | |
1537 | stop_after_trap = 1; | |
ae123ec6 | 1538 | wait_for_inferior (0); |
2020b7ab PA |
1539 | tp = inferior_thread (); |
1540 | if (tp->stop_signal != TARGET_SIGNAL_TRAP) | |
1541 | resume (0, tp->stop_signal); | |
9d3789f7 CF |
1542 | else |
1543 | break; | |
1544 | } | |
eff8332b | 1545 | |
d6b48e9c | 1546 | inf->stop_soon = NO_STOP_QUIETLY; |
9d3789f7 CF |
1547 | stop_after_trap = 0; |
1548 | return; | |
1549 | } | |
1550 | ||
02cc9f49 CV |
1551 | /* Since Windows XP, detaching from a process is supported by Windows. |
1552 | The following code tries loading the appropriate functions dynamically. | |
1553 | If loading these functions succeeds use them to actually detach from | |
1554 | the inferior process, otherwise behave as usual, pretending that | |
1555 | detach has worked. */ | |
def4de3a JB |
1556 | static BOOL WINAPI (*kernel32_DebugSetProcessKillOnExit)(BOOL); |
1557 | static BOOL WINAPI (*kernel32_DebugActiveProcessStop)(DWORD); | |
02cc9f49 CV |
1558 | |
1559 | static int | |
5ae5f592 | 1560 | has_detach_ability (void) |
02cc9f49 CV |
1561 | { |
1562 | static HMODULE kernel32 = NULL; | |
1563 | ||
1564 | if (!kernel32) | |
1565 | kernel32 = LoadLibrary ("kernel32.dll"); | |
1566 | if (kernel32) | |
1567 | { | |
def4de3a | 1568 | if (!kernel32_DebugSetProcessKillOnExit) |
308a8808 JB |
1569 | kernel32_DebugSetProcessKillOnExit = |
1570 | (void *) GetProcAddress (kernel32, "DebugSetProcessKillOnExit"); | |
def4de3a | 1571 | if (!kernel32_DebugActiveProcessStop) |
308a8808 JB |
1572 | kernel32_DebugActiveProcessStop = |
1573 | (void *) GetProcAddress (kernel32, "DebugActiveProcessStop"); | |
def4de3a JB |
1574 | if (kernel32_DebugSetProcessKillOnExit |
1575 | && kernel32_DebugActiveProcessStop) | |
02cc9f49 CV |
1576 | return 1; |
1577 | } | |
1578 | return 0; | |
1579 | } | |
24e60978 | 1580 | |
616a9dc4 CV |
1581 | /* Try to set or remove a user privilege to the current process. Return -1 |
1582 | if that fails, the previous setting of that privilege otherwise. | |
1583 | ||
1584 | This code is copied from the Cygwin source code and rearranged to allow | |
1585 | dynamically loading of the needed symbols from advapi32 which is only | |
1586 | available on NT/2K/XP. */ | |
1587 | static int | |
1588 | set_process_privilege (const char *privilege, BOOL enable) | |
1589 | { | |
1590 | static HMODULE advapi32 = NULL; | |
1591 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
1592 | static BOOL WINAPI (*LookupPrivilegeValue)(LPCSTR, LPCSTR, PLUID); | |
1593 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, | |
1594 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
1595 | ||
1596 | HANDLE token_hdl = NULL; | |
1597 | LUID restore_priv; | |
1598 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1599 | int ret = -1; | |
1600 | DWORD size; | |
1601 | ||
1602 | if (GetVersion () >= 0x80000000) /* No security availbale on 9x/Me */ | |
1603 | return 0; | |
1604 | ||
1605 | if (!advapi32) | |
1606 | { | |
1607 | if (!(advapi32 = LoadLibrary ("advapi32.dll"))) | |
1608 | goto out; | |
1609 | if (!OpenProcessToken) | |
308a8808 JB |
1610 | OpenProcessToken = |
1611 | (void *) GetProcAddress (advapi32, "OpenProcessToken"); | |
616a9dc4 | 1612 | if (!LookupPrivilegeValue) |
308a8808 JB |
1613 | LookupPrivilegeValue = |
1614 | (void *) GetProcAddress (advapi32, "LookupPrivilegeValueA"); | |
616a9dc4 | 1615 | if (!AdjustTokenPrivileges) |
308a8808 JB |
1616 | AdjustTokenPrivileges = |
1617 | (void *) GetProcAddress (advapi32, "AdjustTokenPrivileges"); | |
616a9dc4 | 1618 | if (!OpenProcessToken || !LookupPrivilegeValue || !AdjustTokenPrivileges) |
295732ea | 1619 | { |
616a9dc4 CV |
1620 | advapi32 = NULL; |
1621 | goto out; | |
1622 | } | |
1623 | } | |
295732ea | 1624 | |
616a9dc4 CV |
1625 | if (!OpenProcessToken (GetCurrentProcess (), |
1626 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1627 | &token_hdl)) | |
1628 | goto out; | |
1629 | ||
1630 | if (!LookupPrivilegeValue (NULL, privilege, &restore_priv)) | |
1631 | goto out; | |
1632 | ||
1633 | new_priv.PrivilegeCount = 1; | |
1634 | new_priv.Privileges[0].Luid = restore_priv; | |
1635 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1636 | ||
1637 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1638 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1639 | goto out; |
1640 | #if 0 | |
1641 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1642 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
dc05df57 | 1643 | windows_attach(). */ |
616a9dc4 CV |
1644 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
1645 | be enabled. GetLastError () returns an correct error code, though. */ | |
1646 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) | |
1647 | goto out; | |
1648 | #endif | |
1649 | ||
1650 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1651 | ||
1652 | out: | |
1653 | if (token_hdl) | |
1654 | CloseHandle (token_hdl); | |
1655 | ||
1656 | return ret; | |
1657 | } | |
1658 | ||
02cc9f49 | 1659 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1660 | static void |
dc05df57 | 1661 | windows_attach (struct target_ops *ops, char *args, int from_tty) |
24e60978 SC |
1662 | { |
1663 | BOOL ok; | |
559e75c0 | 1664 | DWORD pid; |
24e60978 SC |
1665 | |
1666 | if (!args) | |
e2e0b3e5 | 1667 | error_no_arg (_("process-id to attach")); |
24e60978 | 1668 | |
616a9dc4 CV |
1669 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1670 | { | |
1671 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
1672 | printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n"); | |
1673 | } | |
1674 | ||
baa93fa6 CF |
1675 | pid = strtoul (args, 0, 0); /* Windows pid */ |
1676 | ||
dc05df57 | 1677 | windows_init_thread_list (); |
9d3789f7 | 1678 | ok = DebugActiveProcess (pid); |
91a175b3 | 1679 | saw_create = 0; |
24e60978 | 1680 | |
10325bc5 | 1681 | #ifdef __CYGWIN__ |
24e60978 | 1682 | if (!ok) |
baa93fa6 CF |
1683 | { |
1684 | /* Try fall back to Cygwin pid */ | |
1685 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); | |
1686 | ||
1687 | if (pid > 0) | |
1688 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1689 | } |
1690 | #endif | |
baa93fa6 | 1691 | |
10325bc5 PA |
1692 | if (!ok) |
1693 | error (_("Can't attach to process.")); | |
24e60978 | 1694 | |
02cc9f49 | 1695 | if (has_detach_ability ()) |
def4de3a | 1696 | kernel32_DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1697 | |
24e60978 SC |
1698 | if (from_tty) |
1699 | { | |
1700 | char *exec_file = (char *) get_exec_file (0); | |
1701 | ||
1702 | if (exec_file) | |
1703 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1704 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1705 | else |
1706 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1707 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1708 | |
1709 | gdb_flush (gdb_stdout); | |
1710 | } | |
1711 | ||
dc05df57 | 1712 | do_initial_windows_stuff (ops, pid, 1); |
9d3789f7 | 1713 | target_terminal_ours (); |
24e60978 SC |
1714 | } |
1715 | ||
24e60978 | 1716 | static void |
dc05df57 | 1717 | windows_detach (struct target_ops *ops, char *args, int from_tty) |
24e60978 | 1718 | { |
02cc9f49 CV |
1719 | int detached = 1; |
1720 | ||
1721 | if (has_detach_ability ()) | |
1722 | { | |
96998ce7 | 1723 | ptid_t ptid = {-1}; |
dc05df57 | 1724 | windows_resume (ptid, 0, TARGET_SIGNAL_0); |
96998ce7 | 1725 | |
def4de3a | 1726 | if (!kernel32_DebugActiveProcessStop (current_event.dwProcessId)) |
3bccec63 | 1727 | { |
8a3fe4f8 | 1728 | error (_("Can't detach process %lu (error %lu)"), |
02cc9f49 CV |
1729 | current_event.dwProcessId, GetLastError ()); |
1730 | detached = 0; | |
3bccec63 | 1731 | } |
def4de3a | 1732 | kernel32_DebugSetProcessKillOnExit (FALSE); |
02cc9f49 CV |
1733 | } |
1734 | if (detached && from_tty) | |
24e60978 SC |
1735 | { |
1736 | char *exec_file = get_exec_file (0); | |
1737 | if (exec_file == 0) | |
1738 | exec_file = ""; | |
02cc9f49 CV |
1739 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1740 | current_event.dwProcessId); | |
24e60978 SC |
1741 | gdb_flush (gdb_stdout); |
1742 | } | |
7f9f62ba | 1743 | |
39f77062 | 1744 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1745 | detach_inferior (current_event.dwProcessId); |
1746 | ||
0795be10 | 1747 | unpush_target (ops); |
24e60978 SC |
1748 | } |
1749 | ||
3ee6f623 | 1750 | static char * |
dc05df57 | 1751 | windows_pid_to_exec_file (int pid) |
47216e51 | 1752 | { |
47216e51 | 1753 | static char path[MAX_PATH + 1]; |
10325bc5 PA |
1754 | |
1755 | #ifdef __CYGWIN__ | |
33605d39 CF |
1756 | /* Try to find exe name as symlink target of /proc/<pid>/exe */ |
1757 | int nchars; | |
1758 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
2dc38344 | 1759 | sprintf (procexe, "/proc/%u/exe", pid); |
33605d39 CF |
1760 | nchars = readlink (procexe, path, sizeof(path)); |
1761 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 1762 | { |
33605d39 CF |
1763 | path[nchars] = '\0'; /* Got it */ |
1764 | return path; | |
47216e51 | 1765 | } |
10325bc5 PA |
1766 | #endif |
1767 | ||
33605d39 CF |
1768 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
1769 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ | |
1770 | if (!get_module_name (0, path)) | |
1771 | path[0] = '\0'; | |
1772 | ||
1773 | return path; | |
47216e51 CV |
1774 | } |
1775 | ||
24e60978 SC |
1776 | /* Print status information about what we're accessing. */ |
1777 | ||
1778 | static void | |
dc05df57 | 1779 | windows_files_info (struct target_ops *ignore) |
24e60978 | 1780 | { |
181e7f93 PA |
1781 | struct inferior *inf = current_inferior (); |
1782 | ||
24e60978 | 1783 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
1784 | inf->attach_flag ? "attached" : "child", |
1785 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
1786 | } |
1787 | ||
24e60978 | 1788 | static void |
dc05df57 | 1789 | windows_open (char *arg, int from_tty) |
24e60978 | 1790 | { |
8a3fe4f8 | 1791 | error (_("Use the \"run\" command to start a Unix child process.")); |
24e60978 SC |
1792 | } |
1793 | ||
dc05df57 | 1794 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
1795 | EXEC_FILE is the file to run. |
1796 | ALLARGS is a string containing the arguments to the program. | |
1797 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1798 | ||
24e60978 | 1799 | static void |
dc05df57 | 1800 | windows_create_inferior (struct target_ops *ops, char *exec_file, |
136d6dae | 1801 | char *allargs, char **in_env, int from_tty) |
24e60978 | 1802 | { |
24e60978 SC |
1803 | STARTUPINFO si; |
1804 | PROCESS_INFORMATION pi; | |
24e60978 SC |
1805 | BOOL ret; |
1806 | DWORD flags; | |
eb708f2e | 1807 | char *args; |
dfe7f3ac CF |
1808 | char real_path[MAXPATHLEN]; |
1809 | char *toexec; | |
349b409f CF |
1810 | char shell[MAX_PATH + 1]; /* Path to shell */ |
1811 | const char *sh; | |
2becadee CF |
1812 | int tty; |
1813 | int ostdin, ostdout, ostderr; | |
3cb3b8df | 1814 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
1815 | |
1816 | if (!exec_file) | |
8a3fe4f8 | 1817 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
1818 | |
1819 | memset (&si, 0, sizeof (si)); | |
1820 | si.cb = sizeof (si); | |
1821 | ||
10325bc5 | 1822 | #ifdef __CYGWIN__ |
349b409f | 1823 | if (!useshell) |
dfe7f3ac CF |
1824 | { |
1825 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1826 | cygwin_conv_to_win32_path (exec_file, real_path); | |
1827 | toexec = real_path; | |
1828 | } | |
1829 | else | |
1830 | { | |
349b409f CF |
1831 | char *newallargs; |
1832 | sh = getenv ("SHELL"); | |
1833 | if (!sh) | |
1834 | sh = "/bin/sh"; | |
1835 | cygwin_conv_to_win32_path (sh, shell); | |
1836 | newallargs = alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
1837 | + strlen (allargs) + 2); | |
dfe7f3ac CF |
1838 | sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs); |
1839 | allargs = newallargs; | |
1840 | toexec = shell; | |
1841 | flags = DEBUG_PROCESS; | |
1842 | } | |
10325bc5 PA |
1843 | #else |
1844 | toexec = exec_file; | |
1845 | flags = DEBUG_ONLY_THIS_PROCESS; | |
1846 | #endif | |
eb708f2e | 1847 | |
eeb25b8a PM |
1848 | if (new_group) |
1849 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1850 | ||
1851 | if (new_console) | |
1852 | flags |= CREATE_NEW_CONSOLE; | |
1853 | ||
dfe7f3ac CF |
1854 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
1855 | strcpy (args, toexec); | |
eb708f2e SC |
1856 | strcat (args, " "); |
1857 | strcat (args, allargs); | |
1858 | ||
10325bc5 | 1859 | #ifdef __CYGWIN__ |
e88c49c3 | 1860 | /* Prepare the environment vars for CreateProcess. */ |
002c07a9 | 1861 | cygwin_internal (CW_SYNC_WINENV); |
1750a5ef | 1862 | |
2becadee CF |
1863 | if (!inferior_io_terminal) |
1864 | tty = ostdin = ostdout = ostderr = -1; | |
1865 | else | |
1866 | { | |
1867 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
1868 | if (tty < 0) | |
1869 | { | |
1870 | print_sys_errmsg (inferior_io_terminal, errno); | |
1871 | ostdin = ostdout = ostderr = -1; | |
1872 | } | |
1873 | else | |
1874 | { | |
1875 | ostdin = dup (0); | |
1876 | ostdout = dup (1); | |
1877 | ostderr = dup (2); | |
1878 | dup2 (tty, 0); | |
1879 | dup2 (tty, 1); | |
1880 | dup2 (tty, 2); | |
1881 | } | |
1882 | } | |
10325bc5 | 1883 | #endif |
2becadee | 1884 | |
dc05df57 | 1885 | windows_init_thread_list (); |
1750a5ef | 1886 | ret = CreateProcess (0, |
3a4b77d8 | 1887 | args, /* command line */ |
24e60978 SC |
1888 | NULL, /* Security */ |
1889 | NULL, /* thread */ | |
1890 | TRUE, /* inherit handles */ | |
1891 | flags, /* start flags */ | |
002c07a9 | 1892 | NULL, /* environment */ |
24e60978 SC |
1893 | NULL, /* current directory */ |
1894 | &si, | |
1895 | &pi); | |
10325bc5 PA |
1896 | |
1897 | #ifdef __CYGWIN__ | |
2becadee CF |
1898 | if (tty >= 0) |
1899 | { | |
1900 | close (tty); | |
1901 | dup2 (ostdin, 0); | |
1902 | dup2 (ostdout, 1); | |
1903 | dup2 (ostderr, 2); | |
1904 | close (ostdin); | |
1905 | close (ostdout); | |
1906 | close (ostderr); | |
1907 | } | |
10325bc5 | 1908 | #endif |
2becadee | 1909 | |
24e60978 | 1910 | if (!ret) |
8a3fe4f8 AC |
1911 | error (_("Error creating process %s, (error %d)."), |
1912 | exec_file, (unsigned) GetLastError ()); | |
24e60978 | 1913 | |
c1766e7d PM |
1914 | CloseHandle (pi.hThread); |
1915 | CloseHandle (pi.hProcess); | |
1916 | ||
dfe7f3ac CF |
1917 | if (useshell && shell[0] != '\0') |
1918 | saw_create = -1; | |
1919 | else | |
1920 | saw_create = 0; | |
1921 | ||
dc05df57 | 1922 | do_initial_windows_stuff (ops, pi.dwProcessId, 0); |
d3a09475 | 1923 | |
dc05df57 | 1924 | /* windows_continue (DBG_CONTINUE, -1); */ |
24e60978 SC |
1925 | } |
1926 | ||
1927 | static void | |
dc05df57 | 1928 | windows_mourn_inferior (struct target_ops *ops) |
24e60978 | 1929 | { |
dc05df57 | 1930 | (void) windows_continue (DBG_CONTINUE, -1); |
fa4ba8da | 1931 | i386_cleanup_dregs(); |
bf25528d CF |
1932 | if (open_process_used) |
1933 | { | |
1934 | CHECK (CloseHandle (current_process_handle)); | |
1935 | open_process_used = 0; | |
1936 | } | |
0795be10 | 1937 | unpush_target (ops); |
24e60978 SC |
1938 | generic_mourn_inferior (); |
1939 | } | |
1940 | ||
24e60978 SC |
1941 | /* Send a SIGINT to the process group. This acts just like the user typed a |
1942 | ^C on the controlling terminal. */ | |
1943 | ||
b607efe7 | 1944 | static void |
dc05df57 | 1945 | windows_stop (ptid_t ptid) |
24e60978 | 1946 | { |
1ef980b9 | 1947 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 1948 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 1949 | registers_changed (); /* refresh register state */ |
24e60978 SC |
1950 | } |
1951 | ||
3ee6f623 | 1952 | static int |
dc05df57 | 1953 | windows_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, |
0a65a603 AC |
1954 | int write, struct mem_attrib *mem, |
1955 | struct target_ops *target) | |
24e60978 | 1956 | { |
5732a500 | 1957 | SIZE_T done = 0; |
24e60978 SC |
1958 | if (write) |
1959 | { | |
29fe111d | 1960 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
2c647436 PM |
1961 | len, (DWORD) (uintptr_t) memaddr)); |
1962 | if (!WriteProcessMemory (current_process_handle, | |
1963 | (LPVOID) (uintptr_t) memaddr, our, | |
6f17862b CF |
1964 | len, &done)) |
1965 | done = 0; | |
2c647436 PM |
1966 | FlushInstructionCache (current_process_handle, |
1967 | (LPCVOID) (uintptr_t) memaddr, len); | |
24e60978 SC |
1968 | } |
1969 | else | |
1970 | { | |
29fe111d | 1971 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
2c647436 PM |
1972 | len, (DWORD) (uintptr_t) memaddr)); |
1973 | if (!ReadProcessMemory (current_process_handle, | |
1974 | (LPCVOID) (uintptr_t) memaddr, our, | |
6f17862b CF |
1975 | len, &done)) |
1976 | done = 0; | |
24e60978 SC |
1977 | } |
1978 | return done; | |
1979 | } | |
1980 | ||
3ee6f623 | 1981 | static void |
dc05df57 | 1982 | windows_kill_inferior (void) |
24e60978 | 1983 | { |
3cee93ac CF |
1984 | CHECK (TerminateProcess (current_process_handle, 0)); |
1985 | ||
b5edcb45 ILT |
1986 | for (;;) |
1987 | { | |
dc05df57 | 1988 | if (!windows_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 1989 | break; |
3cee93ac | 1990 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 1991 | break; |
3cee93ac | 1992 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
1993 | break; |
1994 | } | |
1995 | ||
dc05df57 | 1996 | target_mourn_inferior (); /* or just windows_mourn_inferior? */ |
24e60978 SC |
1997 | } |
1998 | ||
24e60978 | 1999 | static void |
dc05df57 | 2000 | windows_prepare_to_store (struct regcache *regcache) |
24e60978 SC |
2001 | { |
2002 | /* Do nothing, since we can store individual regs */ | |
2003 | } | |
2004 | ||
2005 | static int | |
dc05df57 | 2006 | windows_can_run (void) |
24e60978 SC |
2007 | { |
2008 | return 1; | |
2009 | } | |
2010 | ||
2011 | static void | |
dc05df57 | 2012 | windows_close (int x) |
24e60978 | 2013 | { |
dc05df57 | 2014 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
3bccec63 | 2015 | PIDGET (inferior_ptid))); |
24e60978 | 2016 | } |
1ef980b9 | 2017 | |
3ee6f623 CF |
2018 | /* Convert pid to printable format. */ |
2019 | static char * | |
dc05df57 | 2020 | windows_pid_to_str (ptid_t ptid) |
24e60978 | 2021 | { |
3ee6f623 | 2022 | static char buf[80]; |
3ee6f623 | 2023 | |
2dc38344 PA |
2024 | if (ptid_get_tid (ptid) != 0) |
2025 | { | |
2026 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2027 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2028 | return buf; | |
2029 | } | |
2030 | ||
2031 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2032 | } |
2033 | ||
de1b3c3d | 2034 | static LONGEST |
dc05df57 | 2035 | windows_xfer_shared_libraries (struct target_ops *ops, |
de1b3c3d PA |
2036 | enum target_object object, const char *annex, |
2037 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2038 | ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2039 | { |
de1b3c3d PA |
2040 | struct obstack obstack; |
2041 | const char *buf; | |
2042 | LONGEST len_avail; | |
3cb8e7f6 | 2043 | struct so_list *so; |
3cb8e7f6 | 2044 | |
de1b3c3d PA |
2045 | if (writebuf) |
2046 | return -1; | |
3cb8e7f6 | 2047 | |
de1b3c3d PA |
2048 | obstack_init (&obstack); |
2049 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2050 | for (so = solib_start.next; so; so = so->next) | |
dc05df57 CF |
2051 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) (uintptr_t) so->lm_info->load_addr, |
2052 | &obstack); | |
de1b3c3d | 2053 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2054 | |
de1b3c3d PA |
2055 | buf = obstack_finish (&obstack); |
2056 | len_avail = strlen (buf); | |
2057 | if (offset >= len_avail) | |
2058 | return 0; | |
3cb8e7f6 | 2059 | |
de1b3c3d PA |
2060 | if (len > len_avail - offset) |
2061 | len = len_avail - offset; | |
2062 | memcpy (readbuf, buf + offset, len); | |
3cb8e7f6 | 2063 | |
de1b3c3d PA |
2064 | obstack_free (&obstack, NULL); |
2065 | return len; | |
3cb8e7f6 CF |
2066 | } |
2067 | ||
de1b3c3d | 2068 | static LONGEST |
dc05df57 | 2069 | windows_xfer_partial (struct target_ops *ops, enum target_object object, |
de1b3c3d PA |
2070 | const char *annex, gdb_byte *readbuf, |
2071 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2072 | { |
de1b3c3d | 2073 | switch (object) |
3cb8e7f6 | 2074 | { |
de1b3c3d PA |
2075 | case TARGET_OBJECT_MEMORY: |
2076 | if (readbuf) | |
2077 | return (*ops->deprecated_xfer_memory) (offset, readbuf, | |
244e85c8 | 2078 | len, 0/*read*/, NULL, ops); |
de1b3c3d PA |
2079 | if (writebuf) |
2080 | return (*ops->deprecated_xfer_memory) (offset, (gdb_byte *) writebuf, | |
2081 | len, 1/*write*/, NULL, ops); | |
2082 | return -1; | |
2083 | ||
2084 | case TARGET_OBJECT_LIBRARIES: | |
dc05df57 | 2085 | return windows_xfer_shared_libraries (ops, object, annex, readbuf, |
de1b3c3d | 2086 | writebuf, offset, len); |
3929abe9 | 2087 | |
de1b3c3d PA |
2088 | default: |
2089 | if (ops->beneath != NULL) | |
2090 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2091 | readbuf, writebuf, offset, len); | |
2092 | return -1; | |
3929abe9 | 2093 | } |
02c5aecd CF |
2094 | } |
2095 | ||
3ee6f623 | 2096 | static void |
dc05df57 | 2097 | init_windows_ops (void) |
3ee6f623 | 2098 | { |
dc05df57 CF |
2099 | windows_ops.to_shortname = "child"; |
2100 | windows_ops.to_longname = "Win32 child process"; | |
2101 | windows_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2102 | windows_ops.to_open = windows_open; | |
2103 | windows_ops.to_close = windows_close; | |
2104 | windows_ops.to_attach = windows_attach; | |
2105 | windows_ops.to_attach_no_wait = 1; | |
2106 | windows_ops.to_detach = windows_detach; | |
2107 | windows_ops.to_resume = windows_resume; | |
2108 | windows_ops.to_wait = windows_wait; | |
2109 | windows_ops.to_fetch_registers = windows_fetch_inferior_registers; | |
2110 | windows_ops.to_store_registers = windows_store_inferior_registers; | |
2111 | windows_ops.to_prepare_to_store = windows_prepare_to_store; | |
2112 | windows_ops.deprecated_xfer_memory = windows_xfer_memory; | |
2113 | windows_ops.to_xfer_partial = windows_xfer_partial; | |
2114 | windows_ops.to_files_info = windows_files_info; | |
2115 | windows_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2116 | windows_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2117 | windows_ops.to_terminal_init = terminal_init_inferior; | |
2118 | windows_ops.to_terminal_inferior = terminal_inferior; | |
2119 | windows_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2120 | windows_ops.to_terminal_ours = terminal_ours; | |
2121 | windows_ops.to_terminal_save_ours = terminal_save_ours; | |
2122 | windows_ops.to_terminal_info = child_terminal_info; | |
2123 | windows_ops.to_kill = windows_kill_inferior; | |
2124 | windows_ops.to_create_inferior = windows_create_inferior; | |
2125 | windows_ops.to_mourn_inferior = windows_mourn_inferior; | |
2126 | windows_ops.to_can_run = windows_can_run; | |
2127 | windows_ops.to_thread_alive = windows_thread_alive; | |
2128 | windows_ops.to_pid_to_str = windows_pid_to_str; | |
2129 | windows_ops.to_stop = windows_stop; | |
2130 | windows_ops.to_stratum = process_stratum; | |
2131 | windows_ops.to_has_all_memory = 1; | |
2132 | windows_ops.to_has_memory = 1; | |
2133 | windows_ops.to_has_stack = 1; | |
2134 | windows_ops.to_has_registers = 1; | |
2135 | windows_ops.to_has_execution = 1; | |
2136 | windows_ops.to_pid_to_exec_file = windows_pid_to_exec_file; | |
2137 | windows_ops.to_magic = OPS_MAGIC; | |
c719b714 | 2138 | } |
24e60978 | 2139 | |
3929abe9 | 2140 | static void |
dc05df57 | 2141 | set_windows_aliases (char *argv0) |
3929abe9 CF |
2142 | { |
2143 | add_info_alias ("dll", "sharedlibrary", 1); | |
2144 | } | |
2145 | ||
24e60978 | 2146 | void |
dc05df57 | 2147 | _initialize_windows_nat (void) |
24e60978 | 2148 | { |
fa58ee11 EZ |
2149 | struct cmd_list_element *c; |
2150 | ||
dc05df57 | 2151 | init_windows_ops (); |
1ef980b9 | 2152 | |
fa58ee11 | 2153 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2154 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2155 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2156 | |
2157 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2158 | ||
10325bc5 | 2159 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2160 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2161 | Set use of shell to start subprocess."), _("\ | |
2162 | Show use of shell to start subprocess."), NULL, | |
2163 | NULL, | |
2164 | NULL, /* FIXME: i18n: */ | |
2165 | &setlist, &showlist); | |
2166 | ||
09280ddf CF |
2167 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, &cygwin_exceptions, _("\ |
2168 | Break when an exception is detected in the Cygwin DLL itself."), _("\ | |
2169 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2170 | NULL, | |
2171 | NULL, /* FIXME: i18n: */ | |
2172 | &setlist, &showlist); | |
10325bc5 | 2173 | #endif |
09280ddf | 2174 | |
5bf193a2 AC |
2175 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2176 | Set creation of new console when creating child process."), _("\ | |
2177 | Show creation of new console when creating child process."), NULL, | |
2178 | NULL, | |
2179 | NULL, /* FIXME: i18n: */ | |
2180 | &setlist, &showlist); | |
2181 | ||
2182 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2183 | Set creation of new group when creating child process."), _("\ | |
2184 | Show creation of new group when creating child process."), NULL, | |
2185 | NULL, | |
2186 | NULL, /* FIXME: i18n: */ | |
2187 | &setlist, &showlist); | |
2188 | ||
2189 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2190 | Set whether to display execution in child process."), _("\ | |
2191 | Show whether to display execution in child process."), NULL, | |
2192 | NULL, | |
2193 | NULL, /* FIXME: i18n: */ | |
2194 | &setlist, &showlist); | |
2195 | ||
2196 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2197 | Set whether to display kernel events in child process."), _("\ | |
2198 | Show whether to display kernel events in child process."), NULL, | |
2199 | NULL, | |
2200 | NULL, /* FIXME: i18n: */ | |
2201 | &setlist, &showlist); | |
2202 | ||
2203 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2204 | Set whether to display memory accesses in child process."), _("\ | |
2205 | Show whether to display memory accesses in child process."), NULL, | |
2206 | NULL, | |
2207 | NULL, /* FIXME: i18n: */ | |
2208 | &setlist, &showlist); | |
2209 | ||
2210 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2211 | &debug_exceptions, _("\ | |
2212 | Set whether to display kernel exceptions in child process."), _("\ | |
2213 | Show whether to display kernel exceptions in child process."), NULL, | |
2214 | NULL, | |
2215 | NULL, /* FIXME: i18n: */ | |
2216 | &setlist, &showlist); | |
1ef980b9 | 2217 | |
c1748f97 | 2218 | add_prefix_cmd ("w32", class_info, info_w32_command, |
1bedd215 | 2219 | _("Print information specific to Win32 debugging."), |
baa93fa6 | 2220 | &info_w32_cmdlist, "info w32 ", 0, &infolist); |
c1748f97 PM |
2221 | |
2222 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2223 | _("Display selectors infos."), |
c1748f97 | 2224 | &info_w32_cmdlist); |
dc05df57 CF |
2225 | add_target (&windows_ops); |
2226 | deprecated_init_ui_hook = set_windows_aliases; | |
24e60978 | 2227 | } |
3cee93ac | 2228 | |
fa4ba8da PM |
2229 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2230 | ||
2231 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2232 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 2233 | actually set up when windows_continue is called. */ |
fa4ba8da PM |
2234 | void |
2235 | cygwin_set_dr (int i, CORE_ADDR addr) | |
2236 | { | |
2237 | if (i < 0 || i > 3) | |
2238 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2239 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
fa4ba8da PM |
2240 | dr[i] = (unsigned) addr; |
2241 | debug_registers_changed = 1; | |
2242 | debug_registers_used = 1; | |
2243 | } | |
2244 | ||
2245 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2246 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 2247 | will be actually set up in windows_wait. */ |
fa4ba8da PM |
2248 | void |
2249 | cygwin_set_dr7 (unsigned val) | |
2250 | { | |
2251 | dr[7] = val; | |
2252 | debug_registers_changed = 1; | |
2253 | debug_registers_used = 1; | |
2254 | } | |
2255 | ||
2256 | /* Get the value of the DR6 debug status register from the inferior. | |
2257 | Here we just return the value stored in dr[6] | |
2258 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
2259 | unsigned | |
2260 | cygwin_get_dr6 (void) | |
2261 | { | |
2262 | return dr[6]; | |
2263 | } | |
2264 | ||
2dc38344 | 2265 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 2266 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
2dc38344 | 2267 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
3cee93ac | 2268 | static int |
dc05df57 | 2269 | windows_thread_alive (ptid_t ptid) |
3cee93ac | 2270 | { |
2dc38344 PA |
2271 | int tid; |
2272 | ||
2273 | gdb_assert (ptid_get_tid (ptid) != 0); | |
2274 | tid = ptid_get_tid (ptid); | |
39f77062 | 2275 | |
2dc38344 | 2276 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
3a4b77d8 | 2277 | FALSE : TRUE; |
3cee93ac CF |
2278 | } |
2279 | ||
2a3d5645 CF |
2280 | void |
2281 | _initialize_check_for_gdb_ini (void) | |
2282 | { | |
2283 | char *homedir; | |
2284 | if (inhibit_gdbinit) | |
2285 | return; | |
2286 | ||
2287 | homedir = getenv ("HOME"); | |
2288 | if (homedir) | |
2289 | { | |
2290 | char *p; | |
2291 | char *oldini = (char *) alloca (strlen (homedir) + | |
2292 | sizeof ("/gdb.ini")); | |
2293 | strcpy (oldini, homedir); | |
2294 | p = strchr (oldini, '\0'); | |
2295 | if (p > oldini && p[-1] != '/') | |
2296 | *p++ = '/'; | |
2297 | strcpy (p, "gdb.ini"); | |
2298 | if (access (oldini, 0) == 0) | |
2299 | { | |
2300 | int len = strlen (oldini); | |
2301 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2302 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2303 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2304 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2305 | } |
2306 | } | |
2307 | } | |
33605d39 CF |
2308 | |
2309 | void | |
2310 | _initialize_psapi (void) | |
2311 | { | |
2312 | /* Load optional functions used for retrieving filename information | |
2313 | associated with the currently debugged process or its dlls. */ | |
2314 | if (!psapi_loaded) | |
2315 | { | |
2316 | HMODULE psapi_module_handle; | |
2317 | ||
2318 | psapi_loaded = -1; | |
2319 | ||
2320 | psapi_module_handle = LoadLibrary ("psapi.dll"); | |
2321 | if (psapi_module_handle) | |
2322 | { | |
2323 | psapi_EnumProcessModules = (void *) GetProcAddress (psapi_module_handle, "EnumProcessModules"); | |
2324 | psapi_GetModuleInformation = (void *) GetProcAddress (psapi_module_handle, "GetModuleInformation"); | |
2325 | psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, "GetModuleFileNameExA"); | |
2326 | ||
2327 | if (psapi_EnumProcessModules != NULL | |
2328 | && psapi_GetModuleInformation != NULL | |
2329 | && psapi_GetModuleFileNameExA != NULL) | |
2330 | psapi_loaded = 1; | |
2331 | } | |
2332 | } | |
2333 | ||
2334 | /* This will probably fail on Windows 9x/Me. Let the user know that we're | |
2335 | missing some functionality. */ | |
2336 | if (psapi_loaded < 0) | |
2337 | warning(_("cannot automatically find executable file or library to read symbols. Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
2338 | } |