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, |
4c38e0a4 | 4 | 2005, 2006, 2007, 2008, 2009, 2010 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> | |
2b008701 | 41 | #include <psapi.h> |
10325bc5 | 42 | #ifdef __CYGWIN__ |
403d9909 | 43 | #include <sys/cygwin.h> |
b3c613f2 | 44 | #include <cygwin/version.h> |
10325bc5 | 45 | #endif |
a244bdca | 46 | #include <signal.h> |
cad9cd60 | 47 | |
24e60978 | 48 | #include "buildsym.h" |
1ef980b9 SC |
49 | #include "symfile.h" |
50 | #include "objfiles.h" | |
de1b3c3d | 51 | #include "gdb_obstack.h" |
24e60978 | 52 | #include "gdb_string.h" |
fdfa3315 | 53 | #include "gdbthread.h" |
24e60978 | 54 | #include "gdbcmd.h" |
1750a5ef | 55 | #include <sys/param.h> |
1e37c281 | 56 | #include <unistd.h> |
4646aa9d | 57 | #include "exec.h" |
3ee6f623 | 58 | #include "solist.h" |
3cb8e7f6 | 59 | #include "solib.h" |
de1b3c3d | 60 | #include "xml-support.h" |
24e60978 | 61 | |
6c7de422 MK |
62 | #include "i386-tdep.h" |
63 | #include "i387-tdep.h" | |
64 | ||
31b060a2 CF |
65 | #include "windows-tdep.h" |
66 | #include "windows-nat.h" | |
9bb9e8ad | 67 | #include "i386-nat.h" |
ecc13e53 | 68 | #include "complaints.h" |
de1b3c3d | 69 | |
418c6cb3 | 70 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
71 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
72 | #define DebugBreakProcess dyn_DebugBreakProcess | |
73 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
74 | #define EnumProcessModules dyn_EnumProcessModules | |
2b008701 | 75 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
76 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
77 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
78 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
79 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
2b008701 | 80 | |
418c6cb3 CF |
81 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, |
82 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
2b008701 CF |
83 | static BOOL WINAPI (*DebugActiveProcessStop) (DWORD); |
84 | static BOOL WINAPI (*DebugBreakProcess) (HANDLE); | |
85 | static BOOL WINAPI (*DebugSetProcessKillOnExit) (BOOL); | |
86 | static BOOL WINAPI (*EnumProcessModules) (HANDLE, HMODULE *, DWORD, | |
87 | LPDWORD); | |
2b008701 CF |
88 | static BOOL WINAPI (*GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, |
89 | DWORD); | |
418c6cb3 CF |
90 | static BOOL WINAPI (*LookupPrivilegeValueA)(LPCSTR, LPCSTR, PLUID); |
91 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
cd44747c PM |
92 | static BOOL WINAPI (*GetCurrentConsoleFont) (HANDLE, BOOL, CONSOLE_FONT_INFO *); |
93 | static COORD WINAPI (*GetConsoleFontSize) (HANDLE, DWORD); | |
2b008701 | 94 | |
dc05df57 | 95 | static struct target_ops windows_ops; |
3ee6f623 | 96 | |
b3c613f2 CF |
97 | #undef STARTUPINFO |
98 | #undef CreateProcess | |
99 | #undef GetModuleFileNameEx | |
100 | ||
101 | #ifndef __CYGWIN__ | |
102 | # define __PMAX (MAX_PATH + 1) | |
103 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, LPSTR, DWORD); | |
104 | # define STARTUPINFO STARTUPINFOA | |
105 | # define CreateProcess CreateProcessA | |
106 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
107 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
108 | #else | |
109 | # define __PMAX PATH_MAX | |
a244bdca | 110 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
111 | static CORE_ADDR cygwin_load_start; |
112 | static CORE_ADDR cygwin_load_end; | |
113 | # if CYGWIN_VERSION_DLL_MAKE_COMBINED(CYGWIN_VERSION_API_MAJOR,CYGWIN_VERSION_API_MINOR) >= 181 | |
114 | # define __USEWIDE | |
115 | typedef wchar_t cygwin_buf_t; | |
116 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, LPWSTR, DWORD); | |
117 | # define STARTUPINFO STARTUPINFOW | |
118 | # define CreateProcess CreateProcessW | |
119 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
120 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
121 | # else | |
60c5c021 CF |
122 | # define CCP_POSIX_TO_WIN_W 1 |
123 | # define CCP_WIN_W_TO_POSIX 3 | |
124 | # define cygwin_conv_path(op, from, to, size) \ | |
125 | (op == CCP_WIN_W_TO_POSIX) ? \ | |
126 | cygwin_conv_to_full_posix_path (from, to) : \ | |
127 | cygwin_conv_to_win32_path (from, to) | |
b3c613f2 CF |
128 | typedef char cygwin_buf_t; |
129 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, LPSTR, DWORD); | |
130 | # define STARTUPINFO STARTUPINFOA | |
131 | # define CreateProcess CreateProcessA | |
132 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
133 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
60c5c021 | 134 | # define CW_SET_DOS_FILE_WARNING -1 /* no-op this for older Cygwin */ |
b3c613f2 | 135 | # endif |
10325bc5 | 136 | #endif |
a244bdca CF |
137 | |
138 | static int have_saved_context; /* True if we've saved context from a cygwin signal. */ | |
139 | static CONTEXT saved_context; /* Containes the saved context from a cygwin signal. */ | |
140 | ||
0714f9bf SS |
141 | /* If we're not using the old Cygwin header file set, define the |
142 | following which never should have been in the generic Win32 API | |
143 | headers in the first place since they were our own invention... */ | |
144 | #ifndef _GNU_H_WINDOWS_H | |
9d3789f7 | 145 | enum |
8e860359 CF |
146 | { |
147 | FLAG_TRACE_BIT = 0x100, | |
148 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
149 | }; | |
0714f9bf SS |
150 | #endif |
151 | ||
5851ab76 JB |
152 | #ifndef CONTEXT_EXTENDED_REGISTERS |
153 | /* This macro is only defined on ia32. It only makes sense on this target, | |
154 | so define it as zero if not already defined. */ | |
155 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
156 | #endif | |
157 | ||
fa4ba8da PM |
158 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
159 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 160 | |
41b4aadc | 161 | static uintptr_t dr[8]; |
87a45c96 CF |
162 | static int debug_registers_changed; |
163 | static int debug_registers_used; | |
16d905e2 CF |
164 | |
165 | static int windows_initialization_done; | |
6537bb24 | 166 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 167 | |
3cee93ac CF |
168 | /* The string sent by cygwin when it processes a signal. |
169 | FIXME: This should be in a cygwin include file. */ | |
3929abe9 CF |
170 | #ifndef _CYGWIN_SIGNAL_STRING |
171 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
172 | #endif | |
3cee93ac | 173 | |
29fe111d | 174 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 175 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
176 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
177 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
178 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 179 | |
dc05df57 | 180 | static void windows_stop (ptid_t); |
02529b48 | 181 | static int windows_thread_alive (struct target_ops *, ptid_t); |
7d85a9c0 | 182 | static void windows_kill_inferior (struct target_ops *); |
3cee93ac | 183 | |
9bb9e8ad PM |
184 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
185 | static void cygwin_set_dr7 (unsigned long val); | |
186 | static unsigned long cygwin_get_dr6 (void); | |
187 | ||
7393af7c PM |
188 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
189 | /* Set if a signal was received from the debugged process */ | |
190 | ||
3cee93ac | 191 | /* Thread information structure used to track information that is |
6537bb24 | 192 | not available in gdb's thread structure. */ |
3cee93ac | 193 | typedef struct thread_info_struct |
3a4b77d8 JM |
194 | { |
195 | struct thread_info_struct *next; | |
196 | DWORD id; | |
197 | HANDLE h; | |
711e434b | 198 | CORE_ADDR thread_local_base; |
3a4b77d8 | 199 | char *name; |
6537bb24 | 200 | int suspended; |
3ade5333 | 201 | int reload_context; |
3a4b77d8 | 202 | CONTEXT context; |
1e37c281 | 203 | STACKFRAME sf; |
8e860359 CF |
204 | } |
205 | thread_info; | |
1e37c281 | 206 | |
29fe111d | 207 | static thread_info thread_head; |
24e60978 | 208 | |
24e60978 SC |
209 | /* The process and thread handles for the above context. */ |
210 | ||
3cee93ac CF |
211 | static DEBUG_EVENT current_event; /* The current debug event from |
212 | WaitForDebugEvent */ | |
213 | static HANDLE current_process_handle; /* Currently executing process */ | |
214 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 215 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 SC |
216 | |
217 | /* Counts of things. */ | |
218 | static int exception_count = 0; | |
219 | static int event_count = 0; | |
dfe7f3ac | 220 | static int saw_create; |
bf25528d | 221 | static int open_process_used = 0; |
24e60978 SC |
222 | |
223 | /* User options. */ | |
224 | static int new_console = 0; | |
10325bc5 | 225 | #ifdef __CYGWIN__ |
09280ddf | 226 | static int cygwin_exceptions = 0; |
10325bc5 | 227 | #endif |
1e37c281 | 228 | static int new_group = 1; |
dfe7f3ac CF |
229 | static int debug_exec = 0; /* show execution */ |
230 | static int debug_events = 0; /* show events from kernel */ | |
231 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 232 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
233 | static int useshell = 0; /* use shell for subprocesses */ |
234 | ||
7e63b4e4 | 235 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 236 | in the windows exception context vector. |
24e60978 | 237 | |
3cee93ac | 238 | It also contains the bit mask needed to load the register in question. |
24e60978 | 239 | |
7e63b4e4 JB |
240 | The contents of this table can only be computed by the units |
241 | that provide CPU-specific support for Windows native debugging. | |
242 | These units should set the table by calling | |
dc05df57 | 243 | windows_set_context_register_offsets. |
7e63b4e4 | 244 | |
24e60978 SC |
245 | One day we could read a reg, we could inspect the context we |
246 | already have loaded, if it doesn't have the bit set that we need, | |
247 | we read that set of registers in using GetThreadContext. If the | |
248 | context already contains what we need, we just unpack it. Then to | |
249 | write a register, first we have to ensure that the context contains | |
250 | the other regs of the group, and then we copy the info in and set | |
251 | out bit. */ | |
252 | ||
7e63b4e4 | 253 | static const int *mappings; |
d3a09475 | 254 | |
24e60978 SC |
255 | /* This vector maps the target's idea of an exception (extracted |
256 | from the DEBUG_EVENT structure) to GDB's idea. */ | |
257 | ||
258 | struct xlate_exception | |
259 | { | |
260 | int them; | |
261 | enum target_signal us; | |
262 | }; | |
263 | ||
24e60978 SC |
264 | static const struct xlate_exception |
265 | xlate[] = | |
266 | { | |
267 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 268 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
269 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
270 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
271 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
7393af7c | 272 | {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE}, |
24e60978 SC |
273 | {-1, -1}}; |
274 | ||
7e63b4e4 JB |
275 | /* Set the MAPPINGS static global to OFFSETS. |
276 | See the description of MAPPINGS for more details. */ | |
277 | ||
278 | void | |
dc05df57 | 279 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
280 | { |
281 | mappings = offsets; | |
282 | } | |
283 | ||
fa4ba8da PM |
284 | static void |
285 | check (BOOL ok, const char *file, int line) | |
286 | { | |
287 | if (!ok) | |
dfe7f3ac | 288 | printf_filtered ("error return %s:%d was %lu\n", file, line, |
fa4ba8da PM |
289 | GetLastError ()); |
290 | } | |
291 | ||
6537bb24 PA |
292 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
293 | then also retrieve the context for this thread. If GET_CONTEXT is | |
294 | negative, then don't suspend the thread. */ | |
3cee93ac CF |
295 | static thread_info * |
296 | thread_rec (DWORD id, int get_context) | |
24e60978 | 297 | { |
3cee93ac CF |
298 | thread_info *th; |
299 | ||
3a4b77d8 | 300 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
301 | if (th->id == id) |
302 | { | |
6537bb24 | 303 | if (!th->suspended && get_context) |
3cee93ac | 304 | { |
8a892701 | 305 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
306 | { |
307 | if (SuspendThread (th->h) == (DWORD) -1) | |
308 | { | |
309 | DWORD err = GetLastError (); | |
310 | warning (_("SuspendThread failed. (winerr %d)"), | |
311 | (int) err); | |
312 | return NULL; | |
313 | } | |
314 | th->suspended = 1; | |
315 | } | |
3cee93ac | 316 | else if (get_context < 0) |
6537bb24 | 317 | th->suspended = -1; |
3ade5333 | 318 | th->reload_context = 1; |
3cee93ac CF |
319 | } |
320 | return th; | |
321 | } | |
322 | ||
323 | return NULL; | |
324 | } | |
325 | ||
2dc38344 | 326 | /* Add a thread to the thread list. */ |
3cee93ac | 327 | static thread_info * |
711e434b | 328 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb) |
3cee93ac CF |
329 | { |
330 | thread_info *th; | |
2dc38344 PA |
331 | DWORD id; |
332 | ||
333 | gdb_assert (ptid_get_tid (ptid) != 0); | |
334 | ||
335 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
336 | |
337 | if ((th = thread_rec (id, FALSE))) | |
338 | return th; | |
339 | ||
3929abe9 | 340 | th = XZALLOC (thread_info); |
3cee93ac CF |
341 | th->id = id; |
342 | th->h = h; | |
711e434b | 343 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
344 | th->next = thread_head.next; |
345 | thread_head.next = th; | |
2dc38344 PA |
346 | add_thread (ptid); |
347 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
348 | if (debug_registers_used) |
349 | { | |
350 | /* Only change the value of the debug registers. */ | |
351 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
352 | CHECK (GetThreadContext (th->h, &th->context)); | |
353 | th->context.Dr0 = dr[0]; | |
354 | th->context.Dr1 = dr[1]; | |
355 | th->context.Dr2 = dr[2]; | |
356 | th->context.Dr3 = dr[3]; | |
6537bb24 | 357 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
358 | th->context.Dr7 = dr[7]; |
359 | CHECK (SetThreadContext (th->h, &th->context)); | |
360 | th->context.ContextFlags = 0; | |
361 | } | |
3cee93ac | 362 | return th; |
24e60978 SC |
363 | } |
364 | ||
3cee93ac CF |
365 | /* Clear out any old thread list and reintialize it to a |
366 | pristine state. */ | |
24e60978 | 367 | static void |
dc05df57 | 368 | windows_init_thread_list (void) |
24e60978 | 369 | { |
3cee93ac CF |
370 | thread_info *th = &thread_head; |
371 | ||
dc05df57 | 372 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
373 | init_thread_list (); |
374 | while (th->next != NULL) | |
24e60978 | 375 | { |
3cee93ac CF |
376 | thread_info *here = th->next; |
377 | th->next = here->next; | |
b8c9b27d | 378 | xfree (here); |
24e60978 | 379 | } |
059198c1 | 380 | thread_head.next = NULL; |
3cee93ac CF |
381 | } |
382 | ||
383 | /* Delete a thread from the list of threads */ | |
384 | static void | |
dc05df57 | 385 | windows_delete_thread (ptid_t ptid) |
3cee93ac CF |
386 | { |
387 | thread_info *th; | |
2dc38344 PA |
388 | DWORD id; |
389 | ||
390 | gdb_assert (ptid_get_tid (ptid) != 0); | |
391 | ||
392 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
393 | |
394 | if (info_verbose) | |
2dc38344 PA |
395 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
396 | delete_thread (ptid); | |
3cee93ac CF |
397 | |
398 | for (th = &thread_head; | |
399 | th->next != NULL && th->next->id != id; | |
400 | th = th->next) | |
401 | continue; | |
402 | ||
403 | if (th->next != NULL) | |
24e60978 | 404 | { |
3cee93ac CF |
405 | thread_info *here = th->next; |
406 | th->next = here->next; | |
b8c9b27d | 407 | xfree (here); |
24e60978 SC |
408 | } |
409 | } | |
410 | ||
3cee93ac | 411 | static void |
dc05df57 | 412 | do_windows_fetch_inferior_registers (struct regcache *regcache, int r) |
24e60978 | 413 | { |
1e37c281 | 414 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
415 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
416 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 417 | long l; |
6c7de422 | 418 | |
3ade5333 | 419 | if (!current_thread) |
d6dc8049 CF |
420 | return; /* Windows sometimes uses a non-existent thread id in its |
421 | events */ | |
3ade5333 CF |
422 | |
423 | if (current_thread->reload_context) | |
424 | { | |
cb832706 | 425 | #ifdef __COPY_CONTEXT_SIZE |
a244bdca CF |
426 | if (have_saved_context) |
427 | { | |
428 | /* Lie about where the program actually is stopped since cygwin has informed us that | |
429 | we should consider the signal to have occurred at another location which is stored | |
430 | in "saved_context. */ | |
431 | memcpy (¤t_thread->context, &saved_context, __COPY_CONTEXT_SIZE); | |
432 | have_saved_context = 0; | |
433 | } | |
434 | else | |
cb832706 | 435 | #endif |
a244bdca CF |
436 | { |
437 | thread_info *th = current_thread; | |
438 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
439 | GetThreadContext (th->h, &th->context); | |
2b008701 | 440 | /* Copy dr values from that thread. |
88616312 PM |
441 | But only if there were not modified since last stop. PR gdb/2388 */ |
442 | if (!debug_registers_changed) | |
443 | { | |
444 | dr[0] = th->context.Dr0; | |
445 | dr[1] = th->context.Dr1; | |
446 | dr[2] = th->context.Dr2; | |
447 | dr[3] = th->context.Dr3; | |
448 | dr[6] = th->context.Dr6; | |
449 | dr[7] = th->context.Dr7; | |
450 | } | |
a244bdca | 451 | } |
3ade5333 CF |
452 | current_thread->reload_context = 0; |
453 | } | |
454 | ||
20a6ec49 | 455 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 456 | { |
8e860359 | 457 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 458 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 459 | } |
20a6ec49 | 460 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 461 | { |
8e860359 | 462 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 463 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 JM |
464 | } |
465 | else if (r >= 0) | |
56be3814 | 466 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 467 | else |
24e60978 | 468 | { |
20a6ec49 | 469 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
dc05df57 | 470 | do_windows_fetch_inferior_registers (regcache, r); |
24e60978 | 471 | } |
3cee93ac CF |
472 | } |
473 | ||
474 | static void | |
28439f5e PA |
475 | windows_fetch_inferior_registers (struct target_ops *ops, |
476 | struct regcache *regcache, int r) | |
3cee93ac | 477 | { |
2dc38344 | 478 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 CF |
479 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
480 | thread id in its events */ | |
3ade5333 | 481 | if (current_thread) |
dc05df57 | 482 | do_windows_fetch_inferior_registers (regcache, r); |
3cee93ac CF |
483 | } |
484 | ||
485 | static void | |
dc05df57 | 486 | do_windows_store_inferior_registers (const struct regcache *regcache, int r) |
3cee93ac | 487 | { |
3ade5333 | 488 | if (!current_thread) |
d6dc8049 | 489 | /* Windows sometimes uses a non-existent thread id in its events */; |
3ade5333 | 490 | else if (r >= 0) |
56be3814 | 491 | regcache_raw_collect (regcache, r, |
822c9732 | 492 | ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
493 | else |
494 | { | |
40a6adc1 | 495 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
dc05df57 | 496 | do_windows_store_inferior_registers (regcache, r); |
24e60978 SC |
497 | } |
498 | } | |
499 | ||
3cee93ac CF |
500 | /* Store a new register value into the current thread context */ |
501 | static void | |
28439f5e PA |
502 | windows_store_inferior_registers (struct target_ops *ops, |
503 | struct regcache *regcache, int r) | |
3cee93ac | 504 | { |
2dc38344 | 505 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 CF |
506 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
507 | thread id in its events */ | |
3ade5333 | 508 | if (current_thread) |
dc05df57 | 509 | do_windows_store_inferior_registers (regcache, r); |
3cee93ac | 510 | } |
24e60978 | 511 | |
33605d39 CF |
512 | /* Get the name of a given module at at given base address. If base_address |
513 | is zero return the first loaded module (which is always the name of the | |
514 | executable). */ | |
3ee6f623 | 515 | static int |
d3653bf6 | 516 | get_module_name (LPVOID base_address, char *dll_name_ret) |
1e37c281 JM |
517 | { |
518 | DWORD len; | |
519 | MODULEINFO mi; | |
520 | int i; | |
8e860359 | 521 | HMODULE dh_buf[1]; |
33605d39 | 522 | HMODULE *DllHandle = dh_buf; /* Set to temporary storage for initial query */ |
1e37c281 | 523 | DWORD cbNeeded; |
33605d39 | 524 | #ifdef __CYGWIN__ |
b3c613f2 CF |
525 | cygwin_buf_t pathbuf[__PMAX]; /* Temporary storage prior to converting to |
526 | posix form. __PMAX is always enough | |
d0d0ab16 CV |
527 | as long as SO_NAME_MAX_PATH_SIZE is defined |
528 | as 512. */ | |
33605d39 | 529 | #endif |
1e37c281 | 530 | |
1e37c281 | 531 | cbNeeded = 0; |
33605d39 | 532 | /* Find size of buffer needed to handle list of modules loaded in inferior */ |
2b008701 CF |
533 | if (!EnumProcessModules (current_process_handle, DllHandle, |
534 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1e37c281 JM |
535 | goto failed; |
536 | ||
33605d39 | 537 | /* Allocate correct amount of space for module list */ |
8e860359 | 538 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
539 | if (!DllHandle) |
540 | goto failed; | |
541 | ||
33605d39 | 542 | /* Get the list of modules */ |
2b008701 | 543 | if (!EnumProcessModules (current_process_handle, DllHandle, cbNeeded, |
33605d39 | 544 | &cbNeeded)) |
1e37c281 JM |
545 | goto failed; |
546 | ||
29fe111d | 547 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 | 548 | { |
33605d39 | 549 | /* Get information on this module */ |
2b008701 CF |
550 | if (!GetModuleInformation (current_process_handle, DllHandle[i], |
551 | &mi, sizeof (mi))) | |
8a3fe4f8 | 552 | error (_("Can't get module info")); |
1e37c281 | 553 | |
d3653bf6 | 554 | if (!base_address || mi.lpBaseOfDll == base_address) |
33605d39 CF |
555 | { |
556 | /* Try to find the name of the given module */ | |
d0d0ab16 CV |
557 | #ifdef __CYGWIN__ |
558 | /* Cygwin prefers that the path be in /x/y/z format */ | |
b3c613f2 CF |
559 | len = GetModuleFileNameEx (current_process_handle, |
560 | DllHandle[i], pathbuf, __PMAX); | |
d0d0ab16 CV |
561 | if (len == 0) |
562 | error (_("Error getting dll name: %lu."), GetLastError ()); | |
563 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, dll_name_ret, | |
b3c613f2 | 564 | __PMAX) < 0) |
d0d0ab16 CV |
565 | error (_("Error converting dll name to POSIX: %d."), errno); |
566 | #else | |
b3c613f2 CF |
567 | len = GetModuleFileNameEx (current_process_handle, |
568 | DllHandle[i], dll_name_ret, __PMAX); | |
33605d39 CF |
569 | if (len == 0) |
570 | error (_("Error getting dll name: %u."), (unsigned) GetLastError ()); | |
33605d39 CF |
571 | #endif |
572 | return 1; /* success */ | |
573 | } | |
1e37c281 JM |
574 | } |
575 | ||
576 | failed: | |
577 | dll_name_ret[0] = '\0'; | |
33605d39 | 578 | return 0; /* failure */ |
1e37c281 JM |
579 | } |
580 | ||
450005e7 CF |
581 | /* Encapsulate the information required in a call to |
582 | symbol_file_add_args */ | |
8a892701 CF |
583 | struct safe_symbol_file_add_args |
584 | { | |
585 | char *name; | |
586 | int from_tty; | |
587 | struct section_addr_info *addrs; | |
588 | int mainline; | |
589 | int flags; | |
7c5c87c0 | 590 | struct ui_file *err, *out; |
8a892701 CF |
591 | struct objfile *ret; |
592 | }; | |
593 | ||
02e423b9 | 594 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 595 | struct lm_info |
02e423b9 | 596 | { |
d3653bf6 | 597 | LPVOID load_addr; |
3ee6f623 CF |
598 | }; |
599 | ||
600 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 601 | |
450005e7 CF |
602 | /* Call symbol_file_add with stderr redirected. We don't care if there |
603 | are errors. */ | |
8a892701 CF |
604 | static int |
605 | safe_symbol_file_add_stub (void *argv) | |
606 | { | |
3ee6f623 | 607 | #define p ((struct safe_symbol_file_add_args *) argv) |
7eedccfa PP |
608 | const int add_flags = ((p->from_tty ? SYMFILE_VERBOSE : 0) |
609 | | (p->mainline ? SYMFILE_MAINLINE : 0)); | |
610 | p->ret = symbol_file_add (p->name, add_flags, p->addrs, p->flags); | |
8a892701 CF |
611 | return !!p->ret; |
612 | #undef p | |
613 | } | |
614 | ||
450005e7 | 615 | /* Restore gdb's stderr after calling symbol_file_add */ |
8a892701 | 616 | static void |
7c5c87c0 | 617 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 618 | { |
8e860359 | 619 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 620 | gdb_flush (gdb_stderr); |
7c5c87c0 | 621 | gdb_flush (gdb_stdout); |
d3ff4a77 | 622 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 623 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 624 | gdb_stderr = sp->err; |
9d3789f7 | 625 | gdb_stdout = sp->out; |
8e860359 | 626 | #undef sp |
8a892701 CF |
627 | } |
628 | ||
450005e7 | 629 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
630 | static struct objfile * |
631 | safe_symbol_file_add (char *name, int from_tty, | |
632 | struct section_addr_info *addrs, | |
633 | int mainline, int flags) | |
8a892701 CF |
634 | { |
635 | struct safe_symbol_file_add_args p; | |
636 | struct cleanup *cleanup; | |
637 | ||
7c5c87c0 | 638 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 639 | |
7c5c87c0 CF |
640 | p.err = gdb_stderr; |
641 | p.out = gdb_stdout; | |
450005e7 | 642 | gdb_flush (gdb_stderr); |
7c5c87c0 | 643 | gdb_flush (gdb_stdout); |
d3ff4a77 | 644 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 645 | gdb_stdout = ui_file_new (); |
8a892701 CF |
646 | p.name = name; |
647 | p.from_tty = from_tty; | |
648 | p.addrs = addrs; | |
649 | p.mainline = mainline; | |
650 | p.flags = flags; | |
651 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
652 | ||
653 | do_cleanups (cleanup); | |
654 | return p.ret; | |
655 | } | |
656 | ||
de1b3c3d | 657 | static struct so_list * |
dc05df57 | 658 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 659 | { |
3ee6f623 | 660 | struct so_list *so; |
d0d0ab16 CV |
661 | char *p; |
662 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
663 | char buf[__PMAX]; |
664 | char cwd[__PMAX]; | |
3f8ad85b CF |
665 | WIN32_FIND_DATA w32_fd; |
666 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 667 | |
6badb179 CF |
668 | if (h == INVALID_HANDLE_VALUE) |
669 | strcpy (buf, name); | |
670 | else | |
3f8ad85b | 671 | { |
c914e0cc CF |
672 | FindClose (h); |
673 | strcpy (buf, name); | |
674 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
675 | { | |
676 | p = strrchr (buf, '\\'); | |
677 | if (p) | |
678 | p[1] = '\0'; | |
679 | SetCurrentDirectory (buf); | |
680 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
681 | SetCurrentDirectory (cwd); | |
682 | } | |
3f8ad85b | 683 | } |
3ee6f623 CF |
684 | if (strcasecmp (buf, "ntdll.dll") == 0) |
685 | { | |
686 | GetSystemDirectory (buf, sizeof (buf)); | |
687 | strcat (buf, "\\ntdll.dll"); | |
688 | } | |
d0d0ab16 | 689 | #else |
b3c613f2 | 690 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 691 | |
b3c613f2 | 692 | buf[0] = 0; |
d0d0ab16 CV |
693 | if (access (name, F_OK) != 0) |
694 | { | |
695 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 696 | #ifdef __USEWIDE |
d0d0ab16 CV |
697 | { |
698 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
699 | wcscat (buf, L"\\ntdll.dll"); | |
700 | } | |
b3c613f2 CF |
701 | #else |
702 | { | |
703 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
704 | strcat (buf, "\\ntdll.dll"); | |
705 | } | |
706 | #endif | |
d0d0ab16 CV |
707 | } |
708 | #endif | |
3929abe9 | 709 | so = XZALLOC (struct so_list); |
3ee6f623 CF |
710 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); |
711 | so->lm_info->load_addr = load_addr; | |
de1b3c3d | 712 | strcpy (so->so_original_name, name); |
10325bc5 PA |
713 | #ifndef __CYGWIN__ |
714 | strcpy (so->so_name, buf); | |
715 | #else | |
d0d0ab16 CV |
716 | if (buf[0]) |
717 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
718 | SO_NAME_MAX_PATH_SIZE); | |
719 | else | |
720 | { | |
60c5c021 | 721 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
722 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
723 | { | |
724 | strcpy (so->so_name, rname); | |
725 | free (rname); | |
726 | } | |
727 | else | |
728 | error (_("dll path too long")); | |
729 | } | |
de1b3c3d PA |
730 | /* Record cygwin1.dll .text start/end. */ |
731 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
732 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
733 | { | |
734 | bfd *abfd; | |
735 | asection *text = NULL; | |
736 | CORE_ADDR text_vma; | |
8e860359 | 737 | |
610dd7f9 | 738 | abfd = bfd_openr (so->so_name, "pei-i386"); |
a244bdca | 739 | |
de1b3c3d PA |
740 | if (!abfd) |
741 | return so; | |
742 | ||
743 | if (bfd_check_format (abfd, bfd_object)) | |
744 | text = bfd_get_section_by_name (abfd, ".text"); | |
745 | ||
746 | if (!text) | |
747 | { | |
748 | bfd_close (abfd); | |
749 | return so; | |
750 | } | |
751 | ||
752 | /* The symbols in a dll are offset by 0x1000, which is the the | |
753 | offset from 0 of the first byte in an image - because of the | |
754 | file header and the section alignment. */ | |
dc05df57 CF |
755 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) load_addr + 0x1000); |
756 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); | |
de1b3c3d PA |
757 | |
758 | bfd_close (abfd); | |
759 | } | |
10325bc5 | 760 | #endif |
de1b3c3d PA |
761 | |
762 | return so; | |
8e860359 CF |
763 | } |
764 | ||
3ee6f623 | 765 | static char * |
dfe7f3ac CF |
766 | get_image_name (HANDLE h, void *address, int unicode) |
767 | { | |
d0d0ab16 | 768 | #ifdef __CYGWIN__ |
b3c613f2 | 769 | static char buf[__PMAX]; |
d0d0ab16 | 770 | #else |
b3c613f2 | 771 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 772 | #endif |
dfe7f3ac CF |
773 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
774 | char *address_ptr; | |
775 | int len = 0; | |
776 | char b[2]; | |
5732a500 | 777 | SIZE_T done; |
dfe7f3ac CF |
778 | |
779 | /* Attempt to read the name of the dll that was detected. | |
780 | This is documented to work only when actively debugging | |
781 | a program. It will not work for attached processes. */ | |
782 | if (address == NULL) | |
783 | return NULL; | |
784 | ||
dfe7f3ac CF |
785 | /* See if we could read the address of a string, and that the |
786 | address isn't null. */ | |
9f476a01 | 787 | if (!ReadProcessMemory (h, address, &address_ptr, sizeof (address_ptr), &done) |
6f17862b | 788 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
789 | return NULL; |
790 | ||
791 | /* Find the length of the string */ | |
6f17862b CF |
792 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
793 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
794 | continue; | |
dfe7f3ac CF |
795 | |
796 | if (!unicode) | |
797 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
798 | else | |
799 | { | |
800 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
801 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
802 | &done); | |
d0d0ab16 | 803 | #ifdef __CYGWIN__ |
b3c613f2 | 804 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
805 | #else |
806 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
807 | 0, 0); | |
808 | #endif | |
dfe7f3ac CF |
809 | } |
810 | ||
811 | return buf; | |
812 | } | |
813 | ||
24e60978 SC |
814 | /* Wait for child to do something. Return pid of child, or -1 in case |
815 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 816 | static int |
0a65a603 | 817 | handle_load_dll (void *dummy) |
24e60978 | 818 | { |
3a4b77d8 | 819 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
b3c613f2 | 820 | char dll_buf[__PMAX]; |
450005e7 | 821 | char *dll_name = NULL; |
3cee93ac | 822 | |
3a4b77d8 | 823 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 824 | |
d3653bf6 | 825 | if (!get_module_name (event->lpBaseOfDll, dll_buf)) |
8e860359 | 826 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 827 | |
1e37c281 | 828 | dll_name = dll_buf; |
24e60978 | 829 | |
dfe7f3ac | 830 | if (*dll_name == '\0') |
de1b3c3d PA |
831 | dll_name = get_image_name (current_process_handle, |
832 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
833 | if (!dll_name) |
834 | return 1; | |
835 | ||
dc05df57 | 836 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 837 | solib_end = solib_end->next; |
450005e7 | 838 | |
a74ce742 PM |
839 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
840 | host_address_to_string (solib_end->lm_info->load_addr))); | |
7488902c | 841 | |
450005e7 CF |
842 | return 1; |
843 | } | |
844 | ||
3ee6f623 | 845 | static void |
dc05df57 | 846 | windows_free_so (struct so_list *so) |
3ee6f623 | 847 | { |
3ee6f623 CF |
848 | if (so->lm_info) |
849 | xfree (so->lm_info); | |
de1b3c3d | 850 | xfree (so); |
3cb8e7f6 CF |
851 | } |
852 | ||
d3ff4a77 | 853 | static int |
0a65a603 | 854 | handle_unload_dll (void *dummy) |
d3ff4a77 | 855 | { |
d3653bf6 | 856 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 857 | struct so_list *so; |
d3ff4a77 CF |
858 | |
859 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 860 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 861 | { |
3ee6f623 | 862 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
863 | so->next = sodel->next; |
864 | if (!so->next) | |
865 | solib_end = so; | |
7488902c PM |
866 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
867 | ||
dc05df57 | 868 | windows_free_so (sodel); |
3929abe9 | 869 | solib_add (NULL, 0, NULL, auto_solib_add); |
d3ff4a77 CF |
870 | return 1; |
871 | } | |
3929abe9 | 872 | |
ecc13e53 JB |
873 | /* We did not find any DLL that was previously loaded at this address, |
874 | so register a complaint. We do not report an error, because we have | |
875 | observed that this may be happening under some circumstances. For | |
876 | instance, running 32bit applications on x64 Windows causes us to receive | |
877 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
878 | events are apparently caused by the WOW layer, the interface between | |
879 | 32bit and 64bit worlds). */ | |
880 | complaint (&symfile_complaints, _("dll starting at %s not found."), | |
881 | host_address_to_string (lpBaseOfDll)); | |
d3ff4a77 CF |
882 | |
883 | return 0; | |
884 | } | |
885 | ||
450005e7 | 886 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 887 | static void |
dc05df57 | 888 | windows_clear_solib (void) |
450005e7 | 889 | { |
450005e7 CF |
890 | solib_start.next = NULL; |
891 | solib_end = &solib_start; | |
450005e7 | 892 | } |
295732ea | 893 | |
450005e7 CF |
894 | /* Load DLL symbol info. */ |
895 | void | |
7470a420 | 896 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 897 | { |
8e860359 | 898 | int n; |
450005e7 | 899 | dont_repeat (); |
8e860359 | 900 | |
450005e7 | 901 | if (args == NULL) |
8a3fe4f8 | 902 | error (_("dll-symbols requires a file name")); |
450005e7 | 903 | |
8e860359 CF |
904 | n = strlen (args); |
905 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
906 | { | |
907 | char *newargs = (char *) alloca (n + 4 + 1); | |
908 | strcpy (newargs, args); | |
909 | strcat (newargs, ".dll"); | |
910 | args = newargs; | |
911 | } | |
912 | ||
7470a420 | 913 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 914 | } |
450005e7 | 915 | |
3cee93ac CF |
916 | /* Handle DEBUG_STRING output from child process. |
917 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
918 | a Cygwin signal. Otherwise just print the string as a warning. */ | |
919 | static int | |
920 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
921 | { | |
a244bdca CF |
922 | char *s = NULL; |
923 | int retval = 0; | |
3cee93ac CF |
924 | |
925 | if (!target_read_string | |
2c647436 PM |
926 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
927 | &s, 1024, 0) | |
3cee93ac | 928 | || !s || !*s) |
a244bdca CF |
929 | /* nothing to do */; |
930 | else if (strncmp (s, _CYGWIN_SIGNAL_STRING, sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0) | |
3cee93ac | 931 | { |
10325bc5 | 932 | #ifdef __CYGWIN__ |
d3a09475 | 933 | if (strncmp (s, "cYg", 3) != 0) |
10325bc5 | 934 | #endif |
8a3fe4f8 | 935 | warning (("%s"), s); |
3cee93ac | 936 | } |
cb832706 | 937 | #ifdef __COPY_CONTEXT_SIZE |
d3a09475 | 938 | else |
3cee93ac | 939 | { |
a244bdca CF |
940 | /* Got a cygwin signal marker. A cygwin signal is followed by the signal number |
941 | itself and then optionally followed by the thread id and address to saved context | |
942 | within the DLL. If these are supplied, then the given thread is assumed to have | |
943 | issued the signal and the context from the thread is assumed to be stored at the | |
944 | given address in the inferior. Tell gdb to treat this like a real signal. */ | |
3cee93ac | 945 | char *p; |
3929abe9 | 946 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
a244bdca | 947 | int gotasig = target_signal_from_host (sig); |
0714f9bf SS |
948 | ourstatus->value.sig = gotasig; |
949 | if (gotasig) | |
a244bdca CF |
950 | { |
951 | LPCVOID x; | |
952 | DWORD n; | |
953 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
954 | retval = strtoul (p, &p, 0); | |
955 | if (!retval) | |
956 | retval = main_thread_id; | |
957 | else if ((x = (LPCVOID) strtoul (p, &p, 0)) | |
958 | && ReadProcessMemory (current_process_handle, x, | |
959 | &saved_context, __COPY_CONTEXT_SIZE, &n) | |
960 | && n == __COPY_CONTEXT_SIZE) | |
961 | have_saved_context = 1; | |
962 | current_event.dwThreadId = retval; | |
963 | } | |
3cee93ac | 964 | } |
cb832706 | 965 | #endif |
3cee93ac | 966 | |
a244bdca CF |
967 | if (s) |
968 | xfree (s); | |
969 | return retval; | |
3cee93ac | 970 | } |
24e60978 | 971 | |
c1748f97 PM |
972 | static int |
973 | display_selector (HANDLE thread, DWORD sel) | |
974 | { | |
975 | LDT_ENTRY info; | |
976 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
977 | { | |
978 | int base, limit; | |
979 | printf_filtered ("0x%03lx: ", sel); | |
980 | if (!info.HighWord.Bits.Pres) | |
baa93fa6 CF |
981 | { |
982 | puts_filtered ("Segment not present\n"); | |
983 | return 0; | |
984 | } | |
c1748f97 PM |
985 | base = (info.HighWord.Bits.BaseHi << 24) + |
986 | (info.HighWord.Bits.BaseMid << 16) | |
987 | + info.BaseLow; | |
988 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
989 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 990 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
991 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
992 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 993 | puts_filtered(" 32-bit "); |
c1748f97 | 994 | else |
baa93fa6 | 995 | puts_filtered(" 16-bit "); |
c1748f97 PM |
996 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
997 | { | |
998 | case 0: | |
baa93fa6 CF |
999 | puts_filtered ("Data (Read-Only, Exp-up"); |
1000 | break; | |
c1748f97 | 1001 | case 1: |
baa93fa6 CF |
1002 | puts_filtered ("Data (Read/Write, Exp-up"); |
1003 | break; | |
c1748f97 | 1004 | case 2: |
baa93fa6 CF |
1005 | puts_filtered ("Unused segment ("); |
1006 | break; | |
c1748f97 | 1007 | case 3: |
baa93fa6 CF |
1008 | puts_filtered ("Data (Read/Write, Exp-down"); |
1009 | break; | |
c1748f97 | 1010 | case 4: |
baa93fa6 CF |
1011 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1012 | break; | |
c1748f97 | 1013 | case 5: |
baa93fa6 | 1014 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1015 | break; |
1016 | case 6: | |
baa93fa6 | 1017 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1018 | break; |
1019 | case 7: | |
baa93fa6 | 1020 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1021 | break; |
1022 | default: | |
1023 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
1024 | } | |
1025 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1026 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1027 | puts_filtered (")\n"); |
1028 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1029 | puts_filtered("System selector "); | |
1030 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
1031 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 1032 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1033 | else |
1034 | puts_filtered ("Byte granular.\n"); | |
1035 | return 1; | |
1036 | } | |
1037 | else | |
1038 | { | |
5572ce1f PM |
1039 | DWORD err = GetLastError (); |
1040 | if (err == ERROR_NOT_SUPPORTED) | |
1041 | printf_filtered ("Function not supported\n"); | |
1042 | else | |
1043 | printf_filtered ("Invalid selector 0x%lx.\n",sel); | |
c1748f97 PM |
1044 | return 0; |
1045 | } | |
1046 | } | |
1047 | ||
1048 | static void | |
1049 | display_selectors (char * args, int from_tty) | |
1050 | { | |
1051 | if (!current_thread) | |
1052 | { | |
1053 | puts_filtered ("Impossible to display selectors now.\n"); | |
1054 | return; | |
1055 | } | |
1056 | if (!args) | |
1057 | { | |
1058 | ||
1059 | puts_filtered ("Selector $cs\n"); | |
1060 | display_selector (current_thread->h, | |
baa93fa6 | 1061 | current_thread->context.SegCs); |
c1748f97 PM |
1062 | puts_filtered ("Selector $ds\n"); |
1063 | display_selector (current_thread->h, | |
baa93fa6 | 1064 | current_thread->context.SegDs); |
c1748f97 PM |
1065 | puts_filtered ("Selector $es\n"); |
1066 | display_selector (current_thread->h, | |
baa93fa6 | 1067 | current_thread->context.SegEs); |
c1748f97 PM |
1068 | puts_filtered ("Selector $ss\n"); |
1069 | display_selector (current_thread->h, | |
baa93fa6 | 1070 | current_thread->context.SegSs); |
c1748f97 PM |
1071 | puts_filtered ("Selector $fs\n"); |
1072 | display_selector (current_thread->h, | |
1073 | current_thread->context.SegFs); | |
1074 | puts_filtered ("Selector $gs\n"); | |
1075 | display_selector (current_thread->h, | |
baa93fa6 | 1076 | current_thread->context.SegGs); |
c1748f97 PM |
1077 | } |
1078 | else | |
1079 | { | |
1080 | int sel; | |
1081 | sel = parse_and_eval_long (args); | |
1082 | printf_filtered ("Selector \"%s\"\n",args); | |
1083 | display_selector (current_thread->h, sel); | |
1084 | } | |
1085 | } | |
1086 | ||
7393af7c | 1087 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1088 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1089 | host_address_to_string (\ | |
1090 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1091 | |
36339ecd | 1092 | static int |
450005e7 | 1093 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1094 | { |
3cee93ac | 1095 | thread_info *th; |
29fe111d | 1096 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 1097 | |
29fe111d | 1098 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1099 | |
3cee93ac CF |
1100 | /* Record the context of the current thread */ |
1101 | th = thread_rec (current_event.dwThreadId, -1); | |
24e60978 | 1102 | |
29fe111d | 1103 | switch (code) |
24e60978 | 1104 | { |
1ef980b9 | 1105 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c PM |
1106 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
1107 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
10325bc5 | 1108 | #ifdef __CYGWIN__ |
8da8e0b3 | 1109 | { |
a244bdca CF |
1110 | /* See if the access violation happened within the cygwin DLL itself. Cygwin uses |
1111 | a kind of exception handling to deal with passed-in invalid addresses. gdb | |
1112 | should not treat these as real SEGVs since they will be silently handled by | |
1113 | cygwin. A real SEGV will (theoretically) be caught by cygwin later in the process | |
1114 | and will be sent as a cygwin-specific-signal. So, ignore SEGVs if they show up | |
1115 | within the text segment of the DLL itself. */ | |
8da8e0b3 | 1116 | char *fn; |
dc05df57 | 1117 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) current_event.u.Exception.ExceptionRecord.ExceptionAddress; |
09280ddf | 1118 | if ((!cygwin_exceptions && (addr >= cygwin_load_start && addr < cygwin_load_end)) |
a244bdca CF |
1119 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
1120 | && strncmp (fn, "KERNEL32!IsBad", strlen ("KERNEL32!IsBad")) == 0)) | |
8da8e0b3 CF |
1121 | return 0; |
1122 | } | |
10325bc5 | 1123 | #endif |
7393af7c PM |
1124 | break; |
1125 | case STATUS_STACK_OVERFLOW: | |
1126 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
1ef980b9 | 1127 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
1128 | break; |
1129 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1130 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
1131 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1132 | break; | |
1133 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1134 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
1135 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1136 | break; | |
1137 | case STATUS_FLOAT_INEXACT_RESULT: | |
1138 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
1139 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1140 | break; | |
1141 | case STATUS_FLOAT_INVALID_OPERATION: | |
1142 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1143 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1144 | break; | |
1145 | case STATUS_FLOAT_OVERFLOW: | |
1146 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1147 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1148 | break; | |
1149 | case STATUS_FLOAT_STACK_CHECK: | |
1150 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1151 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 | 1152 | break; |
3b7c8b74 | 1153 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1154 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1155 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1156 | break; | |
3b7c8b74 | 1157 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1158 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1159 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1160 | break; | |
3b7c8b74 | 1161 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1162 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
3b7c8b74 | 1163 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
3b7c8b74 | 1164 | break; |
7393af7c PM |
1165 | case STATUS_INTEGER_OVERFLOW: |
1166 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1167 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 SC |
1168 | break; |
1169 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1170 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
1ef980b9 SC |
1171 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1172 | break; | |
1173 | case DBG_CONTROL_C: | |
7393af7c | 1174 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
1ef980b9 | 1175 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1176 | break; |
1177 | case DBG_CONTROL_BREAK: | |
7393af7c | 1178 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1179 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
1ef980b9 SC |
1180 | break; |
1181 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1182 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
1ef980b9 SC |
1183 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1184 | break; | |
8227c82d | 1185 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1186 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1187 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1188 | break; | |
1189 | case EXCEPTION_PRIV_INSTRUCTION: | |
1190 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1191 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1192 | break; | |
1193 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1194 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1195 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1196 | break; | |
1ef980b9 | 1197 | default: |
a244bdca | 1198 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1199 | if (current_event.u.Exception.dwFirstChance) |
a244bdca | 1200 | return -1; |
a74ce742 PM |
1201 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at %s\n", |
1202 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1203 | host_address_to_string ( | |
1204 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
24e60978 | 1205 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 1206 | break; |
24e60978 | 1207 | } |
24e60978 | 1208 | exception_count++; |
7393af7c | 1209 | last_sig = ourstatus->value.sig; |
36339ecd | 1210 | return 1; |
24e60978 SC |
1211 | } |
1212 | ||
3cee93ac CF |
1213 | /* Resume all artificially suspended threads if we are continuing |
1214 | execution */ | |
1215 | static BOOL | |
dc05df57 | 1216 | windows_continue (DWORD continue_status, int id) |
3cee93ac CF |
1217 | { |
1218 | int i; | |
1219 | thread_info *th; | |
1220 | BOOL res; | |
1221 | ||
1c1238a5 | 1222 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%lx, %s);\n", |
7393af7c | 1223 | current_event.dwProcessId, current_event.dwThreadId, |
dfe7f3ac | 1224 | continue_status == DBG_CONTINUE ? |
7393af7c | 1225 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1226 | |
1227 | for (th = &thread_head; (th = th->next) != NULL;) | |
1228 | if ((id == -1 || id == (int) th->id) | |
1229 | && th->suspended) | |
1230 | { | |
1231 | if (debug_registers_changed) | |
1232 | { | |
1233 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1234 | th->context.Dr0 = dr[0]; | |
1235 | th->context.Dr1 = dr[1]; | |
1236 | th->context.Dr2 = dr[2]; | |
1237 | th->context.Dr3 = dr[3]; | |
1238 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1239 | th->context.Dr7 = dr[7]; | |
1240 | } | |
1241 | if (th->context.ContextFlags) | |
1242 | { | |
1243 | CHECK (SetThreadContext (th->h, &th->context)); | |
1244 | th->context.ContextFlags = 0; | |
1245 | } | |
1246 | if (th->suspended > 0) | |
1247 | (void) ResumeThread (th->h); | |
1248 | th->suspended = 0; | |
1249 | } | |
1250 | ||
0714f9bf SS |
1251 | res = ContinueDebugEvent (current_event.dwProcessId, |
1252 | current_event.dwThreadId, | |
1253 | continue_status); | |
3cee93ac | 1254 | |
fa4ba8da | 1255 | debug_registers_changed = 0; |
3cee93ac CF |
1256 | return res; |
1257 | } | |
1258 | ||
d6dc8049 CF |
1259 | /* Called in pathological case where Windows fails to send a |
1260 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1261 | static DWORD |
5439edaa | 1262 | fake_create_process (void) |
3ade5333 CF |
1263 | { |
1264 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1265 | current_event.dwProcessId); | |
bf25528d CF |
1266 | if (current_process_handle != NULL) |
1267 | open_process_used = 1; | |
1268 | else | |
1269 | { | |
1270 | error (_("OpenProcess call failed, GetLastError = %lud\n"), | |
1271 | GetLastError ()); | |
1272 | /* We can not debug anything in that case. */ | |
1273 | } | |
3ade5333 | 1274 | main_thread_id = current_event.dwThreadId; |
711e434b PM |
1275 | current_thread = windows_add_thread ( |
1276 | ptid_build (current_event.dwProcessId, 0, | |
1277 | current_event.dwThreadId), | |
1278 | current_event.u.CreateThread.hThread, | |
1279 | current_event.u.CreateThread.lpThreadLocalBase); | |
3ade5333 CF |
1280 | return main_thread_id; |
1281 | } | |
1282 | ||
a244bdca | 1283 | static void |
28439f5e PA |
1284 | windows_resume (struct target_ops *ops, |
1285 | ptid_t ptid, int step, enum target_signal sig) | |
a244bdca CF |
1286 | { |
1287 | thread_info *th; | |
1288 | DWORD continue_status = DBG_CONTINUE; | |
1289 | ||
2dc38344 PA |
1290 | /* A specific PTID means `step only this thread id'. */ |
1291 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1292 | ||
1293 | /* If we're continuing all threads, it's the current inferior that | |
1294 | should be handled specially. */ | |
1295 | if (resume_all) | |
1296 | ptid = inferior_ptid; | |
a244bdca CF |
1297 | |
1298 | if (sig != TARGET_SIGNAL_0) | |
1299 | { | |
1300 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1301 | { | |
1302 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1303 | } | |
1304 | else if (sig == last_sig) | |
1305 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1306 | else | |
1307 | #if 0 | |
1308 | /* This code does not seem to work, because | |
1309 | the kernel does probably not consider changes in the ExceptionRecord | |
1310 | structure when passing the exception to the inferior. | |
1311 | Note that this seems possible in the exception handler itself. */ | |
1312 | { | |
1313 | int i; | |
1314 | for (i = 0; xlate[i].them != -1; i++) | |
1315 | if (xlate[i].us == sig) | |
1316 | { | |
1317 | current_event.u.Exception.ExceptionRecord.ExceptionCode = | |
1318 | xlate[i].them; | |
1319 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1320 | break; | |
1321 | } | |
1322 | if (continue_status == DBG_CONTINUE) | |
1323 | { | |
1324 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1325 | } | |
1326 | } | |
1327 | #endif | |
1328 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", | |
1329 | last_sig)); | |
1330 | } | |
1331 | ||
1332 | last_sig = TARGET_SIGNAL_0; | |
1333 | ||
dc05df57 | 1334 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1335 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca CF |
1336 | |
1337 | /* Get context for currently selected thread */ | |
2dc38344 | 1338 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1339 | if (th) |
1340 | { | |
1341 | if (step) | |
1342 | { | |
1343 | /* Single step by setting t bit */ | |
a97b0ac8 UW |
1344 | struct regcache *regcache = get_current_regcache (); |
1345 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1346 | windows_fetch_inferior_registers (ops, regcache, | |
1347 | gdbarch_ps_regnum (gdbarch)); | |
a244bdca CF |
1348 | th->context.EFlags |= FLAG_TRACE_BIT; |
1349 | } | |
1350 | ||
1351 | if (th->context.ContextFlags) | |
1352 | { | |
1353 | if (debug_registers_changed) | |
1354 | { | |
1355 | th->context.Dr0 = dr[0]; | |
1356 | th->context.Dr1 = dr[1]; | |
1357 | th->context.Dr2 = dr[2]; | |
1358 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1359 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1360 | th->context.Dr7 = dr[7]; |
1361 | } | |
1362 | CHECK (SetThreadContext (th->h, &th->context)); | |
1363 | th->context.ContextFlags = 0; | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | /* Allow continuing with the same signal that interrupted us. | |
1368 | Otherwise complain. */ | |
1369 | ||
2dc38344 | 1370 | if (resume_all) |
dc05df57 | 1371 | windows_continue (continue_status, -1); |
2dc38344 | 1372 | else |
dc05df57 | 1373 | windows_continue (continue_status, ptid_get_tid (ptid)); |
a244bdca CF |
1374 | } |
1375 | ||
695de547 CF |
1376 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1377 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1378 | Note that this function is not available prior to Windows XP. In this case | |
1379 | we emit a warning. */ | |
1380 | BOOL WINAPI | |
1381 | ctrl_c_handler (DWORD event_type) | |
1382 | { | |
1383 | const int attach_flag = current_inferior ()->attach_flag; | |
1384 | ||
bb0613a5 PM |
1385 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1386 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1387 | return FALSE; |
1388 | ||
1389 | /* If the inferior and the debugger share the same console, do nothing as | |
1390 | the inferior has also received the Ctrl-C event. */ | |
1391 | if (!new_console && !attach_flag) | |
1392 | return TRUE; | |
1393 | ||
1394 | if (!DebugBreakProcess (current_process_handle)) | |
1395 | warning (_("\ | |
1396 | Could not interrupt program. Press Ctrl-c in the program console.")); | |
1397 | ||
1398 | /* Return true to tell that Ctrl-C has been handled. */ | |
1399 | return TRUE; | |
1400 | } | |
1401 | ||
8a892701 | 1402 | /* Get the next event from the child. Return 1 if the event requires |
695de547 | 1403 | handling by WFI (or whatever). */ |
1e37c281 | 1404 | static int |
28439f5e PA |
1405 | get_windows_debug_event (struct target_ops *ops, |
1406 | int pid, struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1407 | { |
1408 | BOOL debug_event; | |
8a892701 | 1409 | DWORD continue_status, event_code; |
87a45c96 | 1410 | thread_info *th; |
8a892701 | 1411 | static thread_info dummy_thread_info; |
450005e7 | 1412 | int retval = 0; |
1e37c281 | 1413 | |
7393af7c | 1414 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1415 | |
8a892701 | 1416 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1417 | goto out; |
1e37c281 JM |
1418 | |
1419 | event_count++; | |
1420 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1421 | |
8a892701 | 1422 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1423 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1424 | th = NULL; |
a244bdca | 1425 | have_saved_context = 0; |
8a892701 CF |
1426 | |
1427 | switch (event_code) | |
1e37c281 JM |
1428 | { |
1429 | case CREATE_THREAD_DEBUG_EVENT: | |
1430 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1431 | (unsigned) current_event.dwProcessId, |
1432 | (unsigned) current_event.dwThreadId, | |
1433 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1434 | if (saw_create != 1) |
3ade5333 | 1435 | { |
181e7f93 PA |
1436 | struct inferior *inf; |
1437 | inf = find_inferior_pid (current_event.dwProcessId); | |
1438 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1439 | { |
d6dc8049 CF |
1440 | /* Kludge around a Windows bug where first event is a create |
1441 | thread event. Caused when attached process does not have | |
1442 | a main thread. */ | |
3a3e9ee3 | 1443 | retval = fake_create_process (); |
181e7f93 PA |
1444 | if (retval) |
1445 | saw_create++; | |
3ade5333 CF |
1446 | } |
1447 | break; | |
1448 | } | |
1e37c281 | 1449 | /* Record the existence of this thread */ |
450005e7 | 1450 | retval = current_event.dwThreadId; |
dc05df57 | 1451 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1452 | current_event.dwThreadId), |
711e434b PM |
1453 | current_event.u.CreateThread.hThread, |
1454 | current_event.u.CreateThread.lpThreadLocalBase); | |
1455 | ||
1e37c281 JM |
1456 | break; |
1457 | ||
1458 | case EXIT_THREAD_DEBUG_EVENT: | |
1c1238a5 | 1459 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1460 | (unsigned) current_event.dwProcessId, |
1461 | (unsigned) current_event.dwThreadId, | |
1462 | "EXIT_THREAD_DEBUG_EVENT")); | |
b3c613f2 | 1463 | |
87a45c96 CF |
1464 | if (current_event.dwThreadId != main_thread_id) |
1465 | { | |
dc05df57 | 1466 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1467 | current_event.dwThreadId)); |
87a45c96 CF |
1468 | th = &dummy_thread_info; |
1469 | } | |
1e37c281 JM |
1470 | break; |
1471 | ||
1472 | case CREATE_PROCESS_DEBUG_EVENT: | |
1c1238a5 | 1473 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1474 | (unsigned) current_event.dwProcessId, |
1475 | (unsigned) current_event.dwThreadId, | |
1476 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1477 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1478 | if (++saw_create != 1) |
bf25528d | 1479 | break; |
1e37c281 | 1480 | |
dfe7f3ac | 1481 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1482 | if (main_thread_id) |
695de547 CF |
1483 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
1484 | main_thread_id)); | |
9d3789f7 | 1485 | main_thread_id = current_event.dwThreadId; |
1e37c281 | 1486 | /* Add the main thread */ |
dc05df57 | 1487 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
695de547 | 1488 | current_event.dwThreadId), |
711e434b PM |
1489 | current_event.u.CreateProcessInfo.hThread, |
1490 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
3a3e9ee3 | 1491 | retval = current_event.dwThreadId; |
1e37c281 JM |
1492 | break; |
1493 | ||
1494 | case EXIT_PROCESS_DEBUG_EVENT: | |
1c1238a5 | 1495 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1496 | (unsigned) current_event.dwProcessId, |
1497 | (unsigned) current_event.dwThreadId, | |
1498 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1499 | if (!windows_initialization_done) |
1500 | { | |
1501 | target_terminal_ours (); | |
1502 | target_mourn_inferior (); | |
1503 | error (_("During startup program exited with code 0x%x."), | |
1504 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1505 | } | |
1506 | else if (saw_create == 1) | |
1507 | { | |
1508 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1509 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1510 | retval = main_thread_id; | |
1511 | } | |
8a892701 | 1512 | break; |
1e37c281 JM |
1513 | |
1514 | case LOAD_DLL_DEBUG_EVENT: | |
1c1238a5 | 1515 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1516 | (unsigned) current_event.dwProcessId, |
1517 | (unsigned) current_event.dwThreadId, | |
1518 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1519 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1520 | if (saw_create != 1) |
1521 | break; | |
8a892701 | 1522 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1523 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1524 | ourstatus->value.integer = 0; | |
9d3789f7 | 1525 | retval = main_thread_id; |
1e37c281 JM |
1526 | break; |
1527 | ||
1528 | case UNLOAD_DLL_DEBUG_EVENT: | |
1c1238a5 | 1529 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1530 | (unsigned) current_event.dwProcessId, |
1531 | (unsigned) current_event.dwThreadId, | |
1532 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1533 | if (saw_create != 1) |
1534 | break; | |
d3ff4a77 | 1535 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1536 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1537 | ourstatus->value.integer = 0; | |
1538 | retval = main_thread_id; | |
d3ff4a77 | 1539 | break; |
1e37c281 JM |
1540 | |
1541 | case EXCEPTION_DEBUG_EVENT: | |
1c1238a5 | 1542 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1543 | (unsigned) current_event.dwProcessId, |
1544 | (unsigned) current_event.dwThreadId, | |
1545 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1546 | if (saw_create != 1) |
1547 | break; | |
a244bdca CF |
1548 | switch (handle_exception (ourstatus)) |
1549 | { | |
1550 | case 0: | |
1551 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1552 | break; | |
1553 | case 1: | |
1554 | retval = current_event.dwThreadId; | |
1555 | break; | |
1556 | case -1: | |
1557 | last_sig = 1; | |
1558 | continue_status = -1; | |
1559 | break; | |
1560 | } | |
1e37c281 JM |
1561 | break; |
1562 | ||
8a892701 | 1563 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ |
1c1238a5 | 1564 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1565 | (unsigned) current_event.dwProcessId, |
1566 | (unsigned) current_event.dwThreadId, | |
1567 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1568 | if (saw_create != 1) |
1569 | break; | |
a244bdca | 1570 | retval = handle_output_debug_string (ourstatus); |
1e37c281 | 1571 | break; |
9d3789f7 | 1572 | |
1e37c281 | 1573 | default: |
dfe7f3ac CF |
1574 | if (saw_create != 1) |
1575 | break; | |
29fe111d CF |
1576 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1577 | (DWORD) current_event.dwProcessId, | |
1578 | (DWORD) current_event.dwThreadId); | |
1579 | printf_unfiltered (" unknown event code %ld\n", | |
1e37c281 JM |
1580 | current_event.dwDebugEventCode); |
1581 | break; | |
1582 | } | |
1583 | ||
dfe7f3ac | 1584 | if (!retval || saw_create != 1) |
a244bdca CF |
1585 | { |
1586 | if (continue_status == -1) | |
02529b48 | 1587 | windows_resume (ops, minus_one_ptid, 0, 1); |
a244bdca | 1588 | else |
dc05df57 | 1589 | CHECK (windows_continue (continue_status, -1)); |
a244bdca | 1590 | } |
450005e7 | 1591 | else |
9d3789f7 | 1592 | { |
2dc38344 PA |
1593 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
1594 | retval); | |
3ade5333 | 1595 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1596 | } |
1e37c281 JM |
1597 | |
1598 | out: | |
450005e7 | 1599 | return retval; |
1e37c281 JM |
1600 | } |
1601 | ||
2dc38344 | 1602 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1603 | static ptid_t |
117de6a9 | 1604 | windows_wait (struct target_ops *ops, |
47608cb1 | 1605 | ptid_t ptid, struct target_waitstatus *ourstatus, int options) |
24e60978 | 1606 | { |
2dc38344 | 1607 | int pid = -1; |
39f77062 | 1608 | |
c44537cf CV |
1609 | target_terminal_ours (); |
1610 | ||
24e60978 SC |
1611 | /* We loop when we get a non-standard exception rather than return |
1612 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1613 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 SC |
1614 | the birth or death of threads, which mean that the current thread |
1615 | isn't necessarily what you think it is. */ | |
1616 | ||
1617 | while (1) | |
450005e7 | 1618 | { |
c57918b2 | 1619 | int retval; |
2b008701 | 1620 | |
695de547 CF |
1621 | /* If the user presses Ctrl-c while the debugger is waiting |
1622 | for an event, he expects the debugger to interrupt his program | |
1623 | and to get the prompt back. There are two possible situations: | |
1624 | ||
1625 | - The debugger and the program do not share the console, in | |
1626 | which case the Ctrl-c event only reached the debugger. | |
1627 | In that case, the ctrl_c handler will take care of interrupting | |
1628 | the inferior. Note that this case is working starting with | |
1629 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
1630 | inferior console. | |
1631 | ||
1632 | - The debugger and the program share the same console, in which | |
1633 | case both debugger and inferior will receive the Ctrl-c event. | |
1634 | In that case the ctrl_c handler will ignore the event, as the | |
1635 | Ctrl-c event generated inside the inferior will trigger the | |
1636 | expected debug event. | |
1637 | ||
1638 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1639 | signal first and the delay until GDB receives that signal | |
1640 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1641 | after we have unblocked the CTRL+C handler. This would | |
1642 | lead to the debugger stopping prematurely while handling | |
1643 | the new-thread event that comes with the handling of the SIGINT | |
1644 | inside the inferior, and then stop again immediately when | |
1645 | the user tries to resume the execution in the inferior. | |
1646 | This is a classic race that we should try to fix one day. */ | |
1647 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
28439f5e | 1648 | retval = get_windows_debug_event (ops, pid, ourstatus); |
695de547 | 1649 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1650 | |
450005e7 | 1651 | if (retval) |
2dc38344 | 1652 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1653 | else |
1654 | { | |
1655 | int detach = 0; | |
3cee93ac | 1656 | |
98bbd631 AC |
1657 | if (deprecated_ui_loop_hook != NULL) |
1658 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1659 | |
450005e7 | 1660 | if (detach) |
7d85a9c0 | 1661 | windows_kill_inferior (ops); |
450005e7 CF |
1662 | } |
1663 | } | |
24e60978 SC |
1664 | } |
1665 | ||
9d3789f7 | 1666 | static void |
dc05df57 | 1667 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 CF |
1668 | { |
1669 | extern int stop_after_trap; | |
fa4ba8da | 1670 | int i; |
d6b48e9c | 1671 | struct inferior *inf; |
2020b7ab | 1672 | struct thread_info *tp; |
9d3789f7 | 1673 | |
7393af7c | 1674 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1675 | event_count = 0; |
1676 | exception_count = 0; | |
bf25528d | 1677 | open_process_used = 0; |
fa4ba8da | 1678 | debug_registers_changed = 0; |
dfe7f3ac | 1679 | debug_registers_used = 0; |
fa4ba8da PM |
1680 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1681 | dr[i] = 0; | |
10325bc5 | 1682 | #ifdef __CYGWIN__ |
de1b3c3d | 1683 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1684 | #endif |
9d3789f7 CF |
1685 | current_event.dwProcessId = pid; |
1686 | memset (¤t_event, 0, sizeof (current_event)); | |
0795be10 | 1687 | push_target (ops); |
cb851954 | 1688 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1689 | windows_clear_solib (); |
9d3789f7 CF |
1690 | clear_proceed_status (); |
1691 | init_wait_for_inferior (); | |
1692 | ||
6c95b8df PA |
1693 | inf = current_inferior (); |
1694 | inferior_appeared (inf, pid); | |
181e7f93 | 1695 | inf->attach_flag = attaching; |
7f9f62ba | 1696 | |
9f9d052e PM |
1697 | /* Make the new process the current inferior, so terminal handling |
1698 | can rely on it. When attaching, we don't know about any thread | |
1699 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1700 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1701 | inferior_ptid = pid_to_ptid (pid); |
1702 | ||
c44537cf | 1703 | terminal_init_inferior_with_pgrp (pid); |
9d3789f7 CF |
1704 | target_terminal_inferior (); |
1705 | ||
16d905e2 | 1706 | windows_initialization_done = 0; |
d6b48e9c | 1707 | inf->stop_soon = STOP_QUIETLY; |
9d3789f7 CF |
1708 | while (1) |
1709 | { | |
1710 | stop_after_trap = 1; | |
ae123ec6 | 1711 | wait_for_inferior (0); |
2020b7ab PA |
1712 | tp = inferior_thread (); |
1713 | if (tp->stop_signal != TARGET_SIGNAL_TRAP) | |
1714 | resume (0, tp->stop_signal); | |
9d3789f7 CF |
1715 | else |
1716 | break; | |
1717 | } | |
eff8332b | 1718 | |
16d905e2 | 1719 | windows_initialization_done = 1; |
d6b48e9c | 1720 | inf->stop_soon = NO_STOP_QUIETLY; |
9d3789f7 CF |
1721 | stop_after_trap = 0; |
1722 | return; | |
1723 | } | |
1724 | ||
616a9dc4 CV |
1725 | /* Try to set or remove a user privilege to the current process. Return -1 |
1726 | if that fails, the previous setting of that privilege otherwise. | |
1727 | ||
1728 | This code is copied from the Cygwin source code and rearranged to allow | |
1729 | dynamically loading of the needed symbols from advapi32 which is only | |
1730 | available on NT/2K/XP. */ | |
1731 | static int | |
1732 | set_process_privilege (const char *privilege, BOOL enable) | |
1733 | { | |
616a9dc4 CV |
1734 | HANDLE token_hdl = NULL; |
1735 | LUID restore_priv; | |
1736 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1737 | int ret = -1; | |
1738 | DWORD size; | |
1739 | ||
616a9dc4 CV |
1740 | if (!OpenProcessToken (GetCurrentProcess (), |
1741 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1742 | &token_hdl)) | |
1743 | goto out; | |
1744 | ||
418c6cb3 | 1745 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1746 | goto out; |
1747 | ||
1748 | new_priv.PrivilegeCount = 1; | |
1749 | new_priv.Privileges[0].Luid = restore_priv; | |
1750 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1751 | ||
1752 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1753 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1754 | goto out; |
1755 | #if 0 | |
1756 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1757 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
dc05df57 | 1758 | windows_attach(). */ |
616a9dc4 CV |
1759 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
1760 | be enabled. GetLastError () returns an correct error code, though. */ | |
1761 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) | |
1762 | goto out; | |
1763 | #endif | |
1764 | ||
1765 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1766 | ||
1767 | out: | |
1768 | if (token_hdl) | |
1769 | CloseHandle (token_hdl); | |
1770 | ||
1771 | return ret; | |
1772 | } | |
1773 | ||
02cc9f49 | 1774 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1775 | static void |
dc05df57 | 1776 | windows_attach (struct target_ops *ops, char *args, int from_tty) |
24e60978 SC |
1777 | { |
1778 | BOOL ok; | |
559e75c0 | 1779 | DWORD pid; |
24e60978 | 1780 | |
74164c56 | 1781 | pid = parse_pid_to_attach (args); |
24e60978 | 1782 | |
616a9dc4 CV |
1783 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1784 | { | |
1785 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
1786 | printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n"); | |
1787 | } | |
1788 | ||
dc05df57 | 1789 | windows_init_thread_list (); |
9d3789f7 | 1790 | ok = DebugActiveProcess (pid); |
91a175b3 | 1791 | saw_create = 0; |
24e60978 | 1792 | |
10325bc5 | 1793 | #ifdef __CYGWIN__ |
24e60978 | 1794 | if (!ok) |
baa93fa6 CF |
1795 | { |
1796 | /* Try fall back to Cygwin pid */ | |
1797 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); | |
1798 | ||
1799 | if (pid > 0) | |
1800 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1801 | } |
1802 | #endif | |
baa93fa6 | 1803 | |
10325bc5 PA |
1804 | if (!ok) |
1805 | error (_("Can't attach to process.")); | |
24e60978 | 1806 | |
2b008701 | 1807 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1808 | |
24e60978 SC |
1809 | if (from_tty) |
1810 | { | |
1811 | char *exec_file = (char *) get_exec_file (0); | |
1812 | ||
1813 | if (exec_file) | |
1814 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1815 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1816 | else |
1817 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1818 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1819 | |
1820 | gdb_flush (gdb_stdout); | |
1821 | } | |
1822 | ||
dc05df57 | 1823 | do_initial_windows_stuff (ops, pid, 1); |
9d3789f7 | 1824 | target_terminal_ours (); |
24e60978 SC |
1825 | } |
1826 | ||
24e60978 | 1827 | static void |
dc05df57 | 1828 | windows_detach (struct target_ops *ops, char *args, int from_tty) |
24e60978 | 1829 | { |
02cc9f49 CV |
1830 | int detached = 1; |
1831 | ||
2b008701 CF |
1832 | ptid_t ptid = {-1}; |
1833 | windows_resume (ops, ptid, 0, TARGET_SIGNAL_0); | |
96998ce7 | 1834 | |
2b008701 CF |
1835 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
1836 | { | |
1837 | error (_("Can't detach process %lu (error %lu)"), | |
1838 | current_event.dwProcessId, GetLastError ()); | |
1839 | detached = 0; | |
02cc9f49 | 1840 | } |
2b008701 CF |
1841 | DebugSetProcessKillOnExit (FALSE); |
1842 | ||
02cc9f49 | 1843 | if (detached && from_tty) |
24e60978 SC |
1844 | { |
1845 | char *exec_file = get_exec_file (0); | |
1846 | if (exec_file == 0) | |
1847 | exec_file = ""; | |
02cc9f49 CV |
1848 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1849 | current_event.dwProcessId); | |
24e60978 SC |
1850 | gdb_flush (gdb_stdout); |
1851 | } | |
7f9f62ba | 1852 | |
39f77062 | 1853 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1854 | detach_inferior (current_event.dwProcessId); |
1855 | ||
0795be10 | 1856 | unpush_target (ops); |
24e60978 SC |
1857 | } |
1858 | ||
3ee6f623 | 1859 | static char * |
dc05df57 | 1860 | windows_pid_to_exec_file (int pid) |
47216e51 | 1861 | { |
b3c613f2 | 1862 | static char path[__PMAX]; |
10325bc5 | 1863 | #ifdef __CYGWIN__ |
33605d39 CF |
1864 | /* Try to find exe name as symlink target of /proc/<pid>/exe */ |
1865 | int nchars; | |
1866 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
2dc38344 | 1867 | sprintf (procexe, "/proc/%u/exe", pid); |
33605d39 CF |
1868 | nchars = readlink (procexe, path, sizeof(path)); |
1869 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 1870 | { |
33605d39 CF |
1871 | path[nchars] = '\0'; /* Got it */ |
1872 | return path; | |
47216e51 | 1873 | } |
10325bc5 PA |
1874 | #endif |
1875 | ||
33605d39 CF |
1876 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
1877 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ | |
1878 | if (!get_module_name (0, path)) | |
1879 | path[0] = '\0'; | |
1880 | ||
1881 | return path; | |
47216e51 CV |
1882 | } |
1883 | ||
24e60978 SC |
1884 | /* Print status information about what we're accessing. */ |
1885 | ||
1886 | static void | |
dc05df57 | 1887 | windows_files_info (struct target_ops *ignore) |
24e60978 | 1888 | { |
181e7f93 PA |
1889 | struct inferior *inf = current_inferior (); |
1890 | ||
24e60978 | 1891 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
1892 | inf->attach_flag ? "attached" : "child", |
1893 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
1894 | } |
1895 | ||
24e60978 | 1896 | static void |
dc05df57 | 1897 | windows_open (char *arg, int from_tty) |
24e60978 | 1898 | { |
8a3fe4f8 | 1899 | error (_("Use the \"run\" command to start a Unix child process.")); |
24e60978 SC |
1900 | } |
1901 | ||
cd44747c PM |
1902 | /* Modify CreateProcess parameters for use of a new separate console. |
1903 | Parameters are: | |
1904 | *FLAGS: DWORD parameter for general process creation flags. | |
1905 | *SI: STARTUPINFO structure, for which the console window size and | |
1906 | console buffer size is filled in if GDB is running in a console. | |
1907 | to create the new console. | |
1908 | The size of the used font is not available on all versions of | |
1909 | Windows OS. Furthermore, the current font might not be the default | |
1910 | font, but this is still better than before. | |
1911 | If the windows and buffer sizes are computed, | |
1912 | SI->DWFLAGS is changed so that this information is used | |
1913 | by CreateProcess function. */ | |
1914 | ||
1915 | static void | |
1916 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
1917 | { | |
1918 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
1919 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
1920 | ||
1921 | if (hconsole != INVALID_HANDLE_VALUE) | |
1922 | { | |
1923 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
1924 | COORD font_size; | |
1925 | CONSOLE_FONT_INFO cfi; | |
1926 | ||
1927 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
1928 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
1929 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
1930 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
1931 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
1932 | if (font_size.X) | |
1933 | si->dwXSize *= font_size.X; | |
1934 | else | |
1935 | si->dwXSize *= 8; | |
1936 | if (font_size.Y) | |
1937 | si->dwYSize *= font_size.Y; | |
1938 | else | |
1939 | si->dwYSize *= 12; | |
1940 | si->dwXCountChars = sbinfo.dwSize.X; | |
1941 | si->dwYCountChars = sbinfo.dwSize.Y; | |
1942 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
1943 | } | |
1944 | *flags |= CREATE_NEW_CONSOLE; | |
1945 | } | |
1946 | ||
dc05df57 | 1947 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
1948 | EXEC_FILE is the file to run. |
1949 | ALLARGS is a string containing the arguments to the program. | |
1950 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1951 | ||
24e60978 | 1952 | static void |
dc05df57 | 1953 | windows_create_inferior (struct target_ops *ops, char *exec_file, |
136d6dae | 1954 | char *allargs, char **in_env, int from_tty) |
24e60978 | 1955 | { |
b3c613f2 | 1956 | STARTUPINFO si; |
41b4aadc | 1957 | #ifdef __CYGWIN__ |
b3c613f2 CF |
1958 | cygwin_buf_t real_path[__PMAX]; |
1959 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 | 1960 | const char *sh; |
b3c613f2 CF |
1961 | cygwin_buf_t *toexec; |
1962 | cygwin_buf_t *cygallargs; | |
1963 | cygwin_buf_t *args; | |
d0d0ab16 | 1964 | size_t len; |
2becadee CF |
1965 | int tty; |
1966 | int ostdin, ostdout, ostderr; | |
41b4aadc | 1967 | #else |
b3c613f2 CF |
1968 | char real_path[__PMAX]; |
1969 | char shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 CV |
1970 | char *toexec; |
1971 | char *args; | |
41b4aadc CF |
1972 | HANDLE tty; |
1973 | #endif | |
d0d0ab16 CV |
1974 | PROCESS_INFORMATION pi; |
1975 | BOOL ret; | |
1976 | DWORD flags = 0; | |
3cb3b8df | 1977 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
1978 | |
1979 | if (!exec_file) | |
8a3fe4f8 | 1980 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
1981 | |
1982 | memset (&si, 0, sizeof (si)); | |
1983 | si.cb = sizeof (si); | |
1984 | ||
d0d0ab16 CV |
1985 | if (new_group) |
1986 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1987 | ||
1988 | if (new_console) | |
cd44747c | 1989 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 1990 | |
10325bc5 | 1991 | #ifdef __CYGWIN__ |
349b409f | 1992 | if (!useshell) |
dfe7f3ac | 1993 | { |
d0d0ab16 CV |
1994 | flags |= DEBUG_ONLY_THIS_PROCESS; |
1995 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 1996 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 1997 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 1998 | toexec = real_path; |
b3c613f2 | 1999 | #ifdef __USEWIDE |
d0d0ab16 CV |
2000 | len = mbstowcs (NULL, allargs, 0) + 1; |
2001 | if (len == (size_t) -1) | |
2002 | error (_("Error starting executable: %d"), errno); | |
2003 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2004 | mbstowcs (cygallargs, allargs, len); | |
60c5c021 CF |
2005 | #else |
2006 | cygallargs = allargs; | |
b3c613f2 | 2007 | #endif |
dfe7f3ac CF |
2008 | } |
2009 | else | |
2010 | { | |
349b409f CF |
2011 | sh = getenv ("SHELL"); |
2012 | if (!sh) | |
2013 | sh = "/bin/sh"; | |
b3c613f2 | 2014 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2015 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2016 | #ifdef __USEWIDE |
d0d0ab16 CV |
2017 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2018 | + mbstowcs (NULL, allargs, 0) + 2; | |
2019 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2020 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 CF |
2021 | #else |
2022 | cygallargs = (char *) alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
2023 | + strlen (allargs) + 2); | |
2024 | sprintf (cygallargs, " -c 'exec %s %s'", exec_file, allargs); | |
2025 | #endif | |
dfe7f3ac | 2026 | toexec = shell; |
d0d0ab16 | 2027 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2028 | } |
b3c613f2 CF |
2029 | |
2030 | #ifdef __USEWIDE | |
2031 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2032 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2033 | wcscpy (args, toexec); |
2034 | wcscat (args, L" "); | |
2035 | wcscat (args, cygallargs); | |
b3c613f2 CF |
2036 | #else |
2037 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); | |
2038 | strcpy (args, toexec); | |
2039 | strcat (args, " "); | |
2040 | strcat (args, cygallargs); | |
2041 | #endif | |
2042 | ||
e88c49c3 | 2043 | /* Prepare the environment vars for CreateProcess. */ |
002c07a9 | 2044 | cygwin_internal (CW_SYNC_WINENV); |
1750a5ef | 2045 | |
2becadee CF |
2046 | if (!inferior_io_terminal) |
2047 | tty = ostdin = ostdout = ostderr = -1; | |
2048 | else | |
2049 | { | |
2050 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2051 | if (tty < 0) | |
2052 | { | |
2053 | print_sys_errmsg (inferior_io_terminal, errno); | |
2054 | ostdin = ostdout = ostderr = -1; | |
2055 | } | |
2056 | else | |
2057 | { | |
2058 | ostdin = dup (0); | |
2059 | ostdout = dup (1); | |
2060 | ostderr = dup (2); | |
2061 | dup2 (tty, 0); | |
2062 | dup2 (tty, 1); | |
2063 | dup2 (tty, 2); | |
2064 | } | |
2065 | } | |
d0d0ab16 CV |
2066 | |
2067 | windows_init_thread_list (); | |
b3c613f2 CF |
2068 | ret = CreateProcess (0, |
2069 | args, /* command line */ | |
2070 | NULL, /* Security */ | |
2071 | NULL, /* thread */ | |
2072 | TRUE, /* inherit handles */ | |
2073 | flags, /* start flags */ | |
2074 | NULL, /* environment */ | |
2075 | NULL, /* current directory */ | |
2076 | &si, | |
2077 | &pi); | |
d0d0ab16 CV |
2078 | if (tty >= 0) |
2079 | { | |
2080 | close (tty); | |
2081 | dup2 (ostdin, 0); | |
2082 | dup2 (ostdout, 1); | |
2083 | dup2 (ostderr, 2); | |
2084 | close (ostdin); | |
2085 | close (ostdout); | |
2086 | close (ostderr); | |
2087 | } | |
41b4aadc | 2088 | #else |
b3c613f2 | 2089 | toexec = exec_file; |
d0d0ab16 CV |
2090 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
2091 | strcpy (args, toexec); | |
2092 | strcat (args, " "); | |
2093 | strcat (args, allargs); | |
2094 | ||
d0d0ab16 CV |
2095 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2096 | ||
41b4aadc CF |
2097 | if (!inferior_io_terminal) |
2098 | tty = INVALID_HANDLE_VALUE; | |
2099 | else | |
2100 | { | |
2101 | SECURITY_ATTRIBUTES sa; | |
2102 | sa.nLength = sizeof(sa); | |
2103 | sa.lpSecurityDescriptor = 0; | |
2104 | sa.bInheritHandle = TRUE; | |
2105 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2106 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2107 | if (tty == INVALID_HANDLE_VALUE) | |
2108 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2109 | inferior_io_terminal, (unsigned) GetLastError ()); | |
2110 | else | |
2111 | { | |
2112 | si.hStdInput = tty; | |
2113 | si.hStdOutput = tty; | |
2114 | si.hStdError = tty; | |
2115 | si.dwFlags |= STARTF_USESTDHANDLES; | |
2116 | } | |
2117 | } | |
2becadee | 2118 | |
dc05df57 | 2119 | windows_init_thread_list (); |
d0d0ab16 CV |
2120 | ret = CreateProcessA (0, |
2121 | args, /* command line */ | |
2122 | NULL, /* Security */ | |
2123 | NULL, /* thread */ | |
2124 | TRUE, /* inherit handles */ | |
2125 | flags, /* start flags */ | |
2126 | NULL, /* environment */ | |
2127 | NULL, /* current directory */ | |
2128 | &si, | |
2129 | &pi); | |
41b4aadc CF |
2130 | if (tty != INVALID_HANDLE_VALUE) |
2131 | CloseHandle (tty); | |
10325bc5 | 2132 | #endif |
2becadee | 2133 | |
24e60978 | 2134 | if (!ret) |
8a3fe4f8 AC |
2135 | error (_("Error creating process %s, (error %d)."), |
2136 | exec_file, (unsigned) GetLastError ()); | |
24e60978 | 2137 | |
c1766e7d PM |
2138 | CloseHandle (pi.hThread); |
2139 | CloseHandle (pi.hProcess); | |
2140 | ||
dfe7f3ac CF |
2141 | if (useshell && shell[0] != '\0') |
2142 | saw_create = -1; | |
2143 | else | |
2144 | saw_create = 0; | |
2145 | ||
dc05df57 | 2146 | do_initial_windows_stuff (ops, pi.dwProcessId, 0); |
d3a09475 | 2147 | |
dc05df57 | 2148 | /* windows_continue (DBG_CONTINUE, -1); */ |
24e60978 SC |
2149 | } |
2150 | ||
2151 | static void | |
dc05df57 | 2152 | windows_mourn_inferior (struct target_ops *ops) |
24e60978 | 2153 | { |
dc05df57 | 2154 | (void) windows_continue (DBG_CONTINUE, -1); |
fa4ba8da | 2155 | i386_cleanup_dregs(); |
bf25528d CF |
2156 | if (open_process_used) |
2157 | { | |
2158 | CHECK (CloseHandle (current_process_handle)); | |
2159 | open_process_used = 0; | |
2160 | } | |
0795be10 | 2161 | unpush_target (ops); |
24e60978 SC |
2162 | generic_mourn_inferior (); |
2163 | } | |
2164 | ||
24e60978 SC |
2165 | /* Send a SIGINT to the process group. This acts just like the user typed a |
2166 | ^C on the controlling terminal. */ | |
2167 | ||
b607efe7 | 2168 | static void |
dc05df57 | 2169 | windows_stop (ptid_t ptid) |
24e60978 | 2170 | { |
1ef980b9 | 2171 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2172 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2173 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2174 | } |
2175 | ||
3ee6f623 | 2176 | static int |
dc05df57 | 2177 | windows_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, |
0a65a603 AC |
2178 | int write, struct mem_attrib *mem, |
2179 | struct target_ops *target) | |
24e60978 | 2180 | { |
5732a500 | 2181 | SIZE_T done = 0; |
24e60978 SC |
2182 | if (write) |
2183 | { | |
29fe111d | 2184 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
2c647436 | 2185 | len, (DWORD) (uintptr_t) memaddr)); |
2b008701 | 2186 | if (!WriteProcessMemory (current_process_handle, |
2c647436 | 2187 | (LPVOID) (uintptr_t) memaddr, our, |
6f17862b CF |
2188 | len, &done)) |
2189 | done = 0; | |
2b008701 | 2190 | FlushInstructionCache (current_process_handle, |
2c647436 | 2191 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2192 | } |
2193 | else | |
2194 | { | |
29fe111d | 2195 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
2c647436 | 2196 | len, (DWORD) (uintptr_t) memaddr)); |
2b008701 | 2197 | if (!ReadProcessMemory (current_process_handle, |
2c647436 | 2198 | (LPCVOID) (uintptr_t) memaddr, our, |
6f17862b CF |
2199 | len, &done)) |
2200 | done = 0; | |
24e60978 SC |
2201 | } |
2202 | return done; | |
2203 | } | |
2204 | ||
3ee6f623 | 2205 | static void |
7d85a9c0 | 2206 | windows_kill_inferior (struct target_ops *ops) |
24e60978 | 2207 | { |
3cee93ac CF |
2208 | CHECK (TerminateProcess (current_process_handle, 0)); |
2209 | ||
b5edcb45 ILT |
2210 | for (;;) |
2211 | { | |
dc05df57 | 2212 | if (!windows_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 2213 | break; |
3cee93ac | 2214 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2215 | break; |
3cee93ac | 2216 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2217 | break; |
2218 | } | |
2219 | ||
dc05df57 | 2220 | target_mourn_inferior (); /* or just windows_mourn_inferior? */ |
24e60978 SC |
2221 | } |
2222 | ||
24e60978 | 2223 | static void |
dc05df57 | 2224 | windows_prepare_to_store (struct regcache *regcache) |
24e60978 SC |
2225 | { |
2226 | /* Do nothing, since we can store individual regs */ | |
2227 | } | |
2228 | ||
2229 | static int | |
dc05df57 | 2230 | windows_can_run (void) |
24e60978 SC |
2231 | { |
2232 | return 1; | |
2233 | } | |
2234 | ||
2235 | static void | |
dc05df57 | 2236 | windows_close (int x) |
24e60978 | 2237 | { |
dc05df57 | 2238 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
3bccec63 | 2239 | PIDGET (inferior_ptid))); |
24e60978 | 2240 | } |
1ef980b9 | 2241 | |
3ee6f623 CF |
2242 | /* Convert pid to printable format. */ |
2243 | static char * | |
117de6a9 | 2244 | windows_pid_to_str (struct target_ops *ops, ptid_t ptid) |
24e60978 | 2245 | { |
3ee6f623 | 2246 | static char buf[80]; |
3ee6f623 | 2247 | |
2dc38344 PA |
2248 | if (ptid_get_tid (ptid) != 0) |
2249 | { | |
2250 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2251 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2252 | return buf; | |
2253 | } | |
2254 | ||
2255 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2256 | } |
2257 | ||
de1b3c3d | 2258 | static LONGEST |
dc05df57 | 2259 | windows_xfer_shared_libraries (struct target_ops *ops, |
de1b3c3d PA |
2260 | enum target_object object, const char *annex, |
2261 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2262 | ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2263 | { |
de1b3c3d PA |
2264 | struct obstack obstack; |
2265 | const char *buf; | |
2266 | LONGEST len_avail; | |
3cb8e7f6 | 2267 | struct so_list *so; |
3cb8e7f6 | 2268 | |
de1b3c3d PA |
2269 | if (writebuf) |
2270 | return -1; | |
3cb8e7f6 | 2271 | |
de1b3c3d PA |
2272 | obstack_init (&obstack); |
2273 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2274 | for (so = solib_start.next; so; so = so->next) | |
dc05df57 | 2275 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) (uintptr_t) so->lm_info->load_addr, |
5af949e3 | 2276 | target_gdbarch, &obstack); |
de1b3c3d | 2277 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2278 | |
de1b3c3d PA |
2279 | buf = obstack_finish (&obstack); |
2280 | len_avail = strlen (buf); | |
2281 | if (offset >= len_avail) | |
2282 | return 0; | |
3cb8e7f6 | 2283 | |
de1b3c3d PA |
2284 | if (len > len_avail - offset) |
2285 | len = len_avail - offset; | |
2286 | memcpy (readbuf, buf + offset, len); | |
3cb8e7f6 | 2287 | |
de1b3c3d PA |
2288 | obstack_free (&obstack, NULL); |
2289 | return len; | |
3cb8e7f6 CF |
2290 | } |
2291 | ||
de1b3c3d | 2292 | static LONGEST |
dc05df57 | 2293 | windows_xfer_partial (struct target_ops *ops, enum target_object object, |
de1b3c3d PA |
2294 | const char *annex, gdb_byte *readbuf, |
2295 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2296 | { |
de1b3c3d | 2297 | switch (object) |
3cb8e7f6 | 2298 | { |
de1b3c3d PA |
2299 | case TARGET_OBJECT_MEMORY: |
2300 | if (readbuf) | |
2301 | return (*ops->deprecated_xfer_memory) (offset, readbuf, | |
244e85c8 | 2302 | len, 0/*read*/, NULL, ops); |
de1b3c3d PA |
2303 | if (writebuf) |
2304 | return (*ops->deprecated_xfer_memory) (offset, (gdb_byte *) writebuf, | |
2305 | len, 1/*write*/, NULL, ops); | |
2306 | return -1; | |
2307 | ||
2308 | case TARGET_OBJECT_LIBRARIES: | |
dc05df57 | 2309 | return windows_xfer_shared_libraries (ops, object, annex, readbuf, |
de1b3c3d | 2310 | writebuf, offset, len); |
3929abe9 | 2311 | |
de1b3c3d PA |
2312 | default: |
2313 | if (ops->beneath != NULL) | |
2314 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2315 | readbuf, writebuf, offset, len); | |
2316 | return -1; | |
3929abe9 | 2317 | } |
02c5aecd CF |
2318 | } |
2319 | ||
711e434b PM |
2320 | /* Provide thread local base, i.e. Thread Information Block address. |
2321 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
2322 | ||
2323 | static int | |
2324 | windows_get_tib_address (ptid_t ptid, CORE_ADDR *addr) | |
2325 | { | |
2326 | thread_info *th; | |
2327 | ||
2328 | th = thread_rec (ptid_get_tid (ptid), 0); | |
2329 | if (th == NULL) | |
2330 | return 0; | |
2331 | ||
2332 | if (addr != NULL) | |
2333 | *addr = th->thread_local_base; | |
2334 | ||
2335 | return 1; | |
2336 | } | |
2337 | ||
1e2f1c5c JB |
2338 | static ptid_t |
2339 | windows_get_ada_task_ptid (long lwp, long thread) | |
2340 | { | |
2341 | return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp); | |
2342 | } | |
2343 | ||
3ee6f623 | 2344 | static void |
dc05df57 | 2345 | init_windows_ops (void) |
3ee6f623 | 2346 | { |
dc05df57 CF |
2347 | windows_ops.to_shortname = "child"; |
2348 | windows_ops.to_longname = "Win32 child process"; | |
2349 | windows_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2350 | windows_ops.to_open = windows_open; | |
2351 | windows_ops.to_close = windows_close; | |
2352 | windows_ops.to_attach = windows_attach; | |
2353 | windows_ops.to_attach_no_wait = 1; | |
2354 | windows_ops.to_detach = windows_detach; | |
2355 | windows_ops.to_resume = windows_resume; | |
2356 | windows_ops.to_wait = windows_wait; | |
2357 | windows_ops.to_fetch_registers = windows_fetch_inferior_registers; | |
2358 | windows_ops.to_store_registers = windows_store_inferior_registers; | |
2359 | windows_ops.to_prepare_to_store = windows_prepare_to_store; | |
2360 | windows_ops.deprecated_xfer_memory = windows_xfer_memory; | |
2361 | windows_ops.to_xfer_partial = windows_xfer_partial; | |
2362 | windows_ops.to_files_info = windows_files_info; | |
2363 | windows_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2364 | windows_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2365 | windows_ops.to_terminal_init = terminal_init_inferior; | |
2366 | windows_ops.to_terminal_inferior = terminal_inferior; | |
2367 | windows_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2368 | windows_ops.to_terminal_ours = terminal_ours; | |
2369 | windows_ops.to_terminal_save_ours = terminal_save_ours; | |
2370 | windows_ops.to_terminal_info = child_terminal_info; | |
2371 | windows_ops.to_kill = windows_kill_inferior; | |
2372 | windows_ops.to_create_inferior = windows_create_inferior; | |
2373 | windows_ops.to_mourn_inferior = windows_mourn_inferior; | |
2374 | windows_ops.to_can_run = windows_can_run; | |
2375 | windows_ops.to_thread_alive = windows_thread_alive; | |
2376 | windows_ops.to_pid_to_str = windows_pid_to_str; | |
2377 | windows_ops.to_stop = windows_stop; | |
2378 | windows_ops.to_stratum = process_stratum; | |
c35b1492 PA |
2379 | windows_ops.to_has_all_memory = default_child_has_all_memory; |
2380 | windows_ops.to_has_memory = default_child_has_memory; | |
2381 | windows_ops.to_has_stack = default_child_has_stack; | |
2382 | windows_ops.to_has_registers = default_child_has_registers; | |
2383 | windows_ops.to_has_execution = default_child_has_execution; | |
dc05df57 | 2384 | windows_ops.to_pid_to_exec_file = windows_pid_to_exec_file; |
1e2f1c5c | 2385 | windows_ops.to_get_ada_task_ptid = windows_get_ada_task_ptid; |
711e434b | 2386 | windows_ops.to_get_tib_address = windows_get_tib_address; |
9bb9e8ad | 2387 | |
5aca5a82 PM |
2388 | i386_use_watchpoints (&windows_ops); |
2389 | ||
9bb9e8ad PM |
2390 | i386_dr_low.set_control = cygwin_set_dr7; |
2391 | i386_dr_low.set_addr = cygwin_set_dr; | |
2392 | i386_dr_low.reset_addr = NULL; | |
2393 | i386_dr_low.get_status = cygwin_get_dr6; | |
2394 | ||
2395 | /* i386_dr_low.debug_register_length field is set by | |
2396 | calling i386_set_debug_register_length function | |
2397 | in processor windows specific native file. */ | |
2398 | ||
dc05df57 | 2399 | windows_ops.to_magic = OPS_MAGIC; |
c719b714 | 2400 | } |
24e60978 | 2401 | |
3929abe9 | 2402 | static void |
dc05df57 | 2403 | set_windows_aliases (char *argv0) |
3929abe9 CF |
2404 | { |
2405 | add_info_alias ("dll", "sharedlibrary", 1); | |
2406 | } | |
2407 | ||
24e60978 | 2408 | void |
dc05df57 | 2409 | _initialize_windows_nat (void) |
24e60978 | 2410 | { |
fa58ee11 EZ |
2411 | struct cmd_list_element *c; |
2412 | ||
dc05df57 | 2413 | init_windows_ops (); |
1ef980b9 | 2414 | |
d0d0ab16 CV |
2415 | #ifdef __CYGWIN__ |
2416 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
2417 | #endif | |
2418 | ||
fa58ee11 | 2419 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2420 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2421 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2422 | |
2423 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2424 | ||
70992597 PM |
2425 | add_com_alias ("add-shared-symbol-files", "dll-symbols", class_alias, 1); |
2426 | ||
2427 | add_com_alias ("assf", "dll-symbols", class_alias, 1); | |
2428 | ||
10325bc5 | 2429 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2430 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2431 | Set use of shell to start subprocess."), _("\ | |
2432 | Show use of shell to start subprocess."), NULL, | |
2433 | NULL, | |
2434 | NULL, /* FIXME: i18n: */ | |
2435 | &setlist, &showlist); | |
2436 | ||
09280ddf CF |
2437 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, &cygwin_exceptions, _("\ |
2438 | Break when an exception is detected in the Cygwin DLL itself."), _("\ | |
2439 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2440 | NULL, | |
2441 | NULL, /* FIXME: i18n: */ | |
2442 | &setlist, &showlist); | |
10325bc5 | 2443 | #endif |
09280ddf | 2444 | |
5bf193a2 AC |
2445 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2446 | Set creation of new console when creating child process."), _("\ | |
2447 | Show creation of new console when creating child process."), NULL, | |
2448 | NULL, | |
2449 | NULL, /* FIXME: i18n: */ | |
2450 | &setlist, &showlist); | |
2451 | ||
2452 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2453 | Set creation of new group when creating child process."), _("\ | |
2454 | Show creation of new group when creating child process."), NULL, | |
2455 | NULL, | |
2456 | NULL, /* FIXME: i18n: */ | |
2457 | &setlist, &showlist); | |
2458 | ||
2459 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2460 | Set whether to display execution in child process."), _("\ | |
2461 | Show whether to display execution in child process."), NULL, | |
2462 | NULL, | |
2463 | NULL, /* FIXME: i18n: */ | |
2464 | &setlist, &showlist); | |
2465 | ||
2466 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2467 | Set whether to display kernel events in child process."), _("\ | |
2468 | Show whether to display kernel events in child process."), NULL, | |
2469 | NULL, | |
2470 | NULL, /* FIXME: i18n: */ | |
2471 | &setlist, &showlist); | |
2472 | ||
2473 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2474 | Set whether to display memory accesses in child process."), _("\ | |
2475 | Show whether to display memory accesses in child process."), NULL, | |
2476 | NULL, | |
2477 | NULL, /* FIXME: i18n: */ | |
2478 | &setlist, &showlist); | |
2479 | ||
2480 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2481 | &debug_exceptions, _("\ | |
2482 | Set whether to display kernel exceptions in child process."), _("\ | |
2483 | Show whether to display kernel exceptions in child process."), NULL, | |
2484 | NULL, | |
2485 | NULL, /* FIXME: i18n: */ | |
2486 | &setlist, &showlist); | |
1ef980b9 | 2487 | |
711e434b | 2488 | init_w32_command_list (); |
c1748f97 PM |
2489 | |
2490 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2491 | _("Display selectors infos."), |
c1748f97 | 2492 | &info_w32_cmdlist); |
dc05df57 CF |
2493 | add_target (&windows_ops); |
2494 | deprecated_init_ui_hook = set_windows_aliases; | |
24e60978 | 2495 | } |
3cee93ac | 2496 | |
fa4ba8da PM |
2497 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2498 | ||
2499 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2500 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 2501 | actually set up when windows_continue is called. */ |
9bb9e8ad | 2502 | static void |
fa4ba8da PM |
2503 | cygwin_set_dr (int i, CORE_ADDR addr) |
2504 | { | |
2505 | if (i < 0 || i > 3) | |
2506 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2507 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 2508 | dr[i] = addr; |
fa4ba8da PM |
2509 | debug_registers_changed = 1; |
2510 | debug_registers_used = 1; | |
2511 | } | |
2512 | ||
2513 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2514 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 2515 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
2516 | static void |
2517 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 2518 | { |
9bb9e8ad | 2519 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
2520 | debug_registers_changed = 1; |
2521 | debug_registers_used = 1; | |
2522 | } | |
2523 | ||
2524 | /* Get the value of the DR6 debug status register from the inferior. | |
2525 | Here we just return the value stored in dr[6] | |
2526 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 2527 | static unsigned long |
fa4ba8da PM |
2528 | cygwin_get_dr6 (void) |
2529 | { | |
9bb9e8ad | 2530 | return (unsigned long) dr[6]; |
fa4ba8da PM |
2531 | } |
2532 | ||
2dc38344 | 2533 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 2534 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
2dc38344 | 2535 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
3cee93ac | 2536 | static int |
28439f5e | 2537 | windows_thread_alive (struct target_ops *ops, ptid_t ptid) |
3cee93ac | 2538 | { |
2dc38344 PA |
2539 | int tid; |
2540 | ||
2541 | gdb_assert (ptid_get_tid (ptid) != 0); | |
2542 | tid = ptid_get_tid (ptid); | |
39f77062 | 2543 | |
2dc38344 | 2544 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 ? |
3a4b77d8 | 2545 | FALSE : TRUE; |
3cee93ac CF |
2546 | } |
2547 | ||
2a3d5645 CF |
2548 | void |
2549 | _initialize_check_for_gdb_ini (void) | |
2550 | { | |
2551 | char *homedir; | |
2552 | if (inhibit_gdbinit) | |
2553 | return; | |
2554 | ||
2555 | homedir = getenv ("HOME"); | |
2556 | if (homedir) | |
2557 | { | |
2558 | char *p; | |
2559 | char *oldini = (char *) alloca (strlen (homedir) + | |
2560 | sizeof ("/gdb.ini")); | |
2561 | strcpy (oldini, homedir); | |
2562 | p = strchr (oldini, '\0'); | |
2563 | if (p > oldini && p[-1] != '/') | |
2564 | *p++ = '/'; | |
2565 | strcpy (p, "gdb.ini"); | |
2566 | if (access (oldini, 0) == 0) | |
2567 | { | |
2568 | int len = strlen (oldini); | |
2569 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2570 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2571 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2572 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2573 | } |
2574 | } | |
2575 | } | |
33605d39 | 2576 | |
2b008701 CF |
2577 | /* Define dummy functions which always return error for the rare cases where |
2578 | these functions could not be found. */ | |
2579 | static BOOL WINAPI | |
2580 | bad_DebugActiveProcessStop (DWORD w) | |
2581 | { | |
2582 | return FALSE; | |
2583 | } | |
2584 | static BOOL WINAPI | |
2585 | bad_DebugBreakProcess (HANDLE w) | |
2586 | { | |
2587 | return FALSE; | |
2588 | } | |
2589 | static BOOL WINAPI | |
2590 | bad_DebugSetProcessKillOnExit (BOOL w) | |
2591 | { | |
2592 | return FALSE; | |
2593 | } | |
2594 | static BOOL WINAPI | |
2595 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
2596 | { | |
2597 | return FALSE; | |
2598 | } | |
b3c613f2 CF |
2599 | |
2600 | #ifdef __USEWIDE | |
2b008701 | 2601 | static DWORD WINAPI |
b3c613f2 | 2602 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
2603 | { |
2604 | return 0; | |
2605 | } | |
d0d0ab16 CV |
2606 | #else |
2607 | static DWORD WINAPI | |
b3c613f2 | 2608 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
2609 | { |
2610 | return 0; | |
2611 | } | |
2612 | #endif | |
b3c613f2 | 2613 | |
2b008701 CF |
2614 | static BOOL WINAPI |
2615 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
2616 | { | |
2617 | return FALSE; | |
2618 | } | |
2619 | ||
418c6cb3 CF |
2620 | static BOOL WINAPI |
2621 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
2622 | { | |
2623 | return FALSE; | |
2624 | } | |
2625 | ||
cd44747c PM |
2626 | static BOOL WINAPI |
2627 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
2628 | { | |
2629 | f->nFont = 0; | |
2630 | return 1; | |
2631 | } | |
2632 | static COORD WINAPI | |
2633 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
2634 | { | |
2635 | COORD size; | |
2636 | size.X = 8; | |
2637 | size.Y = 12; | |
2638 | return size; | |
2639 | } | |
2640 | ||
2b008701 CF |
2641 | /* Load any functions which may not be available in ancient versions |
2642 | of Windows. */ | |
33605d39 | 2643 | void |
2b008701 | 2644 | _initialize_loadable (void) |
33605d39 | 2645 | { |
2b008701 CF |
2646 | HMODULE hm = NULL; |
2647 | ||
2648 | hm = LoadLibrary ("kernel32.dll"); | |
2649 | if (hm) | |
33605d39 | 2650 | { |
b3c613f2 | 2651 | DebugActiveProcessStop = (void *) |
2b008701 | 2652 | GetProcAddress (hm, "DebugActiveProcessStop"); |
b3c613f2 | 2653 | DebugBreakProcess = (void *) |
2b008701 | 2654 | GetProcAddress (hm, "DebugBreakProcess"); |
b3c613f2 | 2655 | DebugSetProcessKillOnExit = (void *) |
2b008701 | 2656 | GetProcAddress (hm, "DebugSetProcessKillOnExit"); |
cd44747c PM |
2657 | GetConsoleFontSize = (void *) |
2658 | GetProcAddress (hm, "GetConsoleFontSize"); | |
2659 | GetCurrentConsoleFont = (void *) | |
2660 | GetProcAddress (hm, "GetCurrentConsoleFont"); | |
2b008701 | 2661 | } |
33605d39 | 2662 | |
2b008701 CF |
2663 | /* Set variables to dummy versions of these processes if the function |
2664 | wasn't found in kernel32.dll. */ | |
b3c613f2 CF |
2665 | if (!DebugBreakProcess) |
2666 | DebugBreakProcess = bad_DebugBreakProcess; | |
2667 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 2668 | { |
b3c613f2 CF |
2669 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
2670 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 2671 | } |
cd44747c PM |
2672 | if (!GetConsoleFontSize) |
2673 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
2674 | if (!GetCurrentConsoleFont) | |
2675 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 2676 | |
2b008701 CF |
2677 | /* Load optional functions used for retrieving filename information |
2678 | associated with the currently debugged process or its dlls. */ | |
2679 | hm = LoadLibrary ("psapi.dll"); | |
2680 | if (hm) | |
2681 | { | |
b3c613f2 | 2682 | EnumProcessModules = (void *) |
2b008701 | 2683 | GetProcAddress (hm, "EnumProcessModules"); |
b3c613f2 | 2684 | GetModuleInformation = (void *) |
2b008701 | 2685 | GetProcAddress (hm, "GetModuleInformation"); |
b3c613f2 CF |
2686 | GetModuleFileNameEx = (void *) |
2687 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
2688 | } |
2689 | ||
b3c613f2 | 2690 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
2691 | { |
2692 | /* Set variables to dummy versions of these processes if the function | |
2693 | wasn't found in psapi.dll. */ | |
b3c613f2 CF |
2694 | EnumProcessModules = bad_EnumProcessModules; |
2695 | GetModuleInformation = bad_GetModuleInformation; | |
2696 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
2b008701 CF |
2697 | /* This will probably fail on Windows 9x/Me. Let the user know that we're |
2698 | missing some functionality. */ | |
418c6cb3 CF |
2699 | warning(_("cannot automatically find executable file or library to read symbols.\nUse \"file\" or \"dll\" command to load executable/libraries directly.")); |
2700 | } | |
2701 | ||
2702 | hm = LoadLibrary ("advapi32.dll"); | |
2703 | if (hm) | |
2704 | { | |
b3c613f2 CF |
2705 | OpenProcessToken = (void *) GetProcAddress (hm, "OpenProcessToken"); |
2706 | LookupPrivilegeValueA = (void *) | |
418c6cb3 | 2707 | GetProcAddress (hm, "LookupPrivilegeValueA"); |
b3c613f2 | 2708 | AdjustTokenPrivileges = (void *) |
418c6cb3 CF |
2709 | GetProcAddress (hm, "AdjustTokenPrivileges"); |
2710 | /* Only need to set one of these since if OpenProcessToken fails nothing | |
2711 | else is needed. */ | |
b3c613f2 CF |
2712 | if (!OpenProcessToken || !LookupPrivilegeValueA || !AdjustTokenPrivileges) |
2713 | OpenProcessToken = bad_OpenProcessToken; | |
2b008701 | 2714 | } |
33605d39 | 2715 | } |