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, |
7b6bb8da | 4 | 2005, 2006, 2007, 2008, 2009, 2010, 2011 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> |
10325bc5 | 44 | #endif |
a244bdca | 45 | #include <signal.h> |
cad9cd60 | 46 | |
24e60978 | 47 | #include "buildsym.h" |
0ba1096a | 48 | #include "filenames.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); | |
581e13c1 MS |
92 | static BOOL WINAPI (*GetCurrentConsoleFont) (HANDLE, BOOL, |
93 | CONSOLE_FONT_INFO *); | |
cd44747c | 94 | static COORD WINAPI (*GetConsoleFontSize) (HANDLE, DWORD); |
2b008701 | 95 | |
dc05df57 | 96 | static struct target_ops windows_ops; |
3ee6f623 | 97 | |
b3c613f2 CF |
98 | #undef STARTUPINFO |
99 | #undef CreateProcess | |
100 | #undef GetModuleFileNameEx | |
101 | ||
102 | #ifndef __CYGWIN__ | |
103 | # define __PMAX (MAX_PATH + 1) | |
104 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, LPSTR, DWORD); | |
105 | # define STARTUPINFO STARTUPINFOA | |
106 | # define CreateProcess CreateProcessA | |
107 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
108 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
109 | #else | |
110 | # define __PMAX PATH_MAX | |
581e13c1 | 111 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
112 | static CORE_ADDR cygwin_load_start; |
113 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
114 | # define __USEWIDE |
115 | typedef wchar_t cygwin_buf_t; | |
581e13c1 MS |
116 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, |
117 | LPWSTR, DWORD); | |
b3c613f2 CF |
118 | # define STARTUPINFO STARTUPINFOW |
119 | # define CreateProcess CreateProcessW | |
120 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
121 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 122 | #endif |
a244bdca | 123 | |
581e13c1 MS |
124 | static int have_saved_context; /* True if we've saved context from a |
125 | cygwin signal. */ | |
126 | static CONTEXT saved_context; /* Containes the saved context from a | |
127 | cygwin signal. */ | |
a244bdca | 128 | |
0714f9bf SS |
129 | /* If we're not using the old Cygwin header file set, define the |
130 | following which never should have been in the generic Win32 API | |
581e13c1 | 131 | headers in the first place since they were our own invention... */ |
0714f9bf | 132 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 133 | enum |
8e860359 CF |
134 | { |
135 | FLAG_TRACE_BIT = 0x100, | |
136 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
137 | }; | |
0714f9bf SS |
138 | #endif |
139 | ||
5851ab76 JB |
140 | #ifndef CONTEXT_EXTENDED_REGISTERS |
141 | /* This macro is only defined on ia32. It only makes sense on this target, | |
142 | so define it as zero if not already defined. */ | |
143 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
144 | #endif | |
145 | ||
fa4ba8da PM |
146 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
147 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 148 | |
41b4aadc | 149 | static uintptr_t dr[8]; |
87a45c96 CF |
150 | static int debug_registers_changed; |
151 | static int debug_registers_used; | |
16d905e2 CF |
152 | |
153 | static int windows_initialization_done; | |
6537bb24 | 154 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 155 | |
3cee93ac | 156 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 157 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
158 | #ifndef _CYGWIN_SIGNAL_STRING |
159 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
160 | #endif | |
3cee93ac | 161 | |
29fe111d | 162 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 163 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
164 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
165 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
166 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 167 | |
dc05df57 | 168 | static void windows_stop (ptid_t); |
02529b48 | 169 | static int windows_thread_alive (struct target_ops *, ptid_t); |
7d85a9c0 | 170 | static void windows_kill_inferior (struct target_ops *); |
3cee93ac | 171 | |
9bb9e8ad PM |
172 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
173 | static void cygwin_set_dr7 (unsigned long val); | |
174 | static unsigned long cygwin_get_dr6 (void); | |
175 | ||
7393af7c | 176 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
581e13c1 | 177 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 178 | |
3cee93ac | 179 | /* Thread information structure used to track information that is |
6537bb24 | 180 | not available in gdb's thread structure. */ |
3cee93ac | 181 | typedef struct thread_info_struct |
3a4b77d8 JM |
182 | { |
183 | struct thread_info_struct *next; | |
184 | DWORD id; | |
185 | HANDLE h; | |
711e434b | 186 | CORE_ADDR thread_local_base; |
3a4b77d8 | 187 | char *name; |
6537bb24 | 188 | int suspended; |
3ade5333 | 189 | int reload_context; |
3a4b77d8 | 190 | CONTEXT context; |
1e37c281 | 191 | STACKFRAME sf; |
8e860359 CF |
192 | } |
193 | thread_info; | |
1e37c281 | 194 | |
29fe111d | 195 | static thread_info thread_head; |
24e60978 | 196 | |
581e13c1 | 197 | /* The process and thread handles for the above context. */ |
24e60978 | 198 | |
3cee93ac CF |
199 | static DEBUG_EVENT current_event; /* The current debug event from |
200 | WaitForDebugEvent */ | |
201 | static HANDLE current_process_handle; /* Currently executing process */ | |
202 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 203 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 | 204 | |
581e13c1 | 205 | /* Counts of things. */ |
24e60978 SC |
206 | static int exception_count = 0; |
207 | static int event_count = 0; | |
dfe7f3ac | 208 | static int saw_create; |
bf25528d | 209 | static int open_process_used = 0; |
24e60978 | 210 | |
581e13c1 | 211 | /* User options. */ |
24e60978 | 212 | static int new_console = 0; |
10325bc5 | 213 | #ifdef __CYGWIN__ |
09280ddf | 214 | static int cygwin_exceptions = 0; |
10325bc5 | 215 | #endif |
1e37c281 | 216 | static int new_group = 1; |
dfe7f3ac CF |
217 | static int debug_exec = 0; /* show execution */ |
218 | static int debug_events = 0; /* show events from kernel */ | |
219 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 220 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
221 | static int useshell = 0; /* use shell for subprocesses */ |
222 | ||
7e63b4e4 | 223 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 224 | in the windows exception context vector. |
24e60978 | 225 | |
3cee93ac | 226 | It also contains the bit mask needed to load the register in question. |
24e60978 | 227 | |
7e63b4e4 JB |
228 | The contents of this table can only be computed by the units |
229 | that provide CPU-specific support for Windows native debugging. | |
230 | These units should set the table by calling | |
dc05df57 | 231 | windows_set_context_register_offsets. |
7e63b4e4 | 232 | |
24e60978 SC |
233 | One day we could read a reg, we could inspect the context we |
234 | already have loaded, if it doesn't have the bit set that we need, | |
235 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 236 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
237 | write a register, first we have to ensure that the context contains |
238 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 239 | out bit. */ |
24e60978 | 240 | |
7e63b4e4 | 241 | static const int *mappings; |
d3a09475 | 242 | |
24e60978 | 243 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 244 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
245 | |
246 | struct xlate_exception | |
247 | { | |
248 | int them; | |
249 | enum target_signal us; | |
250 | }; | |
251 | ||
24e60978 SC |
252 | static const struct xlate_exception |
253 | xlate[] = | |
254 | { | |
255 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 256 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
257 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
258 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
259 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
7393af7c | 260 | {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE}, |
24e60978 SC |
261 | {-1, -1}}; |
262 | ||
7e63b4e4 JB |
263 | /* Set the MAPPINGS static global to OFFSETS. |
264 | See the description of MAPPINGS for more details. */ | |
265 | ||
266 | void | |
dc05df57 | 267 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
268 | { |
269 | mappings = offsets; | |
270 | } | |
271 | ||
fa4ba8da PM |
272 | static void |
273 | check (BOOL ok, const char *file, int line) | |
274 | { | |
275 | if (!ok) | |
dfe7f3ac | 276 | printf_filtered ("error return %s:%d was %lu\n", file, line, |
fa4ba8da PM |
277 | GetLastError ()); |
278 | } | |
279 | ||
6537bb24 PA |
280 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
281 | then also retrieve the context for this thread. If GET_CONTEXT is | |
282 | negative, then don't suspend the thread. */ | |
3cee93ac CF |
283 | static thread_info * |
284 | thread_rec (DWORD id, int get_context) | |
24e60978 | 285 | { |
3cee93ac CF |
286 | thread_info *th; |
287 | ||
3a4b77d8 | 288 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
289 | if (th->id == id) |
290 | { | |
6537bb24 | 291 | if (!th->suspended && get_context) |
3cee93ac | 292 | { |
8a892701 | 293 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
294 | { |
295 | if (SuspendThread (th->h) == (DWORD) -1) | |
296 | { | |
297 | DWORD err = GetLastError (); | |
298 | warning (_("SuspendThread failed. (winerr %d)"), | |
299 | (int) err); | |
300 | return NULL; | |
301 | } | |
302 | th->suspended = 1; | |
303 | } | |
3cee93ac | 304 | else if (get_context < 0) |
6537bb24 | 305 | th->suspended = -1; |
3ade5333 | 306 | th->reload_context = 1; |
3cee93ac CF |
307 | } |
308 | return th; | |
309 | } | |
310 | ||
311 | return NULL; | |
312 | } | |
313 | ||
2dc38344 | 314 | /* Add a thread to the thread list. */ |
3cee93ac | 315 | static thread_info * |
711e434b | 316 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb) |
3cee93ac CF |
317 | { |
318 | thread_info *th; | |
2dc38344 PA |
319 | DWORD id; |
320 | ||
321 | gdb_assert (ptid_get_tid (ptid) != 0); | |
322 | ||
323 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
324 | |
325 | if ((th = thread_rec (id, FALSE))) | |
326 | return th; | |
327 | ||
3929abe9 | 328 | th = XZALLOC (thread_info); |
3cee93ac CF |
329 | th->id = id; |
330 | th->h = h; | |
711e434b | 331 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
332 | th->next = thread_head.next; |
333 | thread_head.next = th; | |
2dc38344 PA |
334 | add_thread (ptid); |
335 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
336 | if (debug_registers_used) |
337 | { | |
338 | /* Only change the value of the debug registers. */ | |
339 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
340 | CHECK (GetThreadContext (th->h, &th->context)); | |
341 | th->context.Dr0 = dr[0]; | |
342 | th->context.Dr1 = dr[1]; | |
343 | th->context.Dr2 = dr[2]; | |
344 | th->context.Dr3 = dr[3]; | |
6537bb24 | 345 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
346 | th->context.Dr7 = dr[7]; |
347 | CHECK (SetThreadContext (th->h, &th->context)); | |
348 | th->context.ContextFlags = 0; | |
349 | } | |
3cee93ac | 350 | return th; |
24e60978 SC |
351 | } |
352 | ||
3cee93ac | 353 | /* Clear out any old thread list and reintialize it to a |
581e13c1 | 354 | pristine state. */ |
24e60978 | 355 | static void |
dc05df57 | 356 | windows_init_thread_list (void) |
24e60978 | 357 | { |
3cee93ac CF |
358 | thread_info *th = &thread_head; |
359 | ||
dc05df57 | 360 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
361 | init_thread_list (); |
362 | while (th->next != NULL) | |
24e60978 | 363 | { |
3cee93ac CF |
364 | thread_info *here = th->next; |
365 | th->next = here->next; | |
b8c9b27d | 366 | xfree (here); |
24e60978 | 367 | } |
059198c1 | 368 | thread_head.next = NULL; |
3cee93ac CF |
369 | } |
370 | ||
581e13c1 | 371 | /* Delete a thread from the list of threads. */ |
3cee93ac | 372 | static void |
dc05df57 | 373 | windows_delete_thread (ptid_t ptid) |
3cee93ac CF |
374 | { |
375 | thread_info *th; | |
2dc38344 PA |
376 | DWORD id; |
377 | ||
378 | gdb_assert (ptid_get_tid (ptid) != 0); | |
379 | ||
380 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
381 | |
382 | if (info_verbose) | |
2dc38344 PA |
383 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
384 | delete_thread (ptid); | |
3cee93ac CF |
385 | |
386 | for (th = &thread_head; | |
387 | th->next != NULL && th->next->id != id; | |
388 | th = th->next) | |
389 | continue; | |
390 | ||
391 | if (th->next != NULL) | |
24e60978 | 392 | { |
3cee93ac CF |
393 | thread_info *here = th->next; |
394 | th->next = here->next; | |
b8c9b27d | 395 | xfree (here); |
24e60978 SC |
396 | } |
397 | } | |
398 | ||
3cee93ac | 399 | static void |
dc05df57 | 400 | do_windows_fetch_inferior_registers (struct regcache *regcache, int r) |
24e60978 | 401 | { |
1e37c281 | 402 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
403 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
404 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 405 | long l; |
6c7de422 | 406 | |
3ade5333 | 407 | if (!current_thread) |
d6dc8049 | 408 | return; /* Windows sometimes uses a non-existent thread id in its |
581e13c1 | 409 | events. */ |
3ade5333 CF |
410 | |
411 | if (current_thread->reload_context) | |
412 | { | |
cb832706 | 413 | #ifdef __COPY_CONTEXT_SIZE |
a244bdca CF |
414 | if (have_saved_context) |
415 | { | |
581e13c1 MS |
416 | /* Lie about where the program actually is stopped since |
417 | cygwin has informed us that we should consider the signal | |
418 | to have occurred at another location which is stored in | |
419 | "saved_context. */ | |
420 | memcpy (¤t_thread->context, &saved_context, | |
421 | __COPY_CONTEXT_SIZE); | |
a244bdca CF |
422 | have_saved_context = 0; |
423 | } | |
424 | else | |
cb832706 | 425 | #endif |
a244bdca CF |
426 | { |
427 | thread_info *th = current_thread; | |
428 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
429 | GetThreadContext (th->h, &th->context); | |
2b008701 | 430 | /* Copy dr values from that thread. |
581e13c1 MS |
431 | But only if there were not modified since last stop. |
432 | PR gdb/2388 */ | |
88616312 PM |
433 | if (!debug_registers_changed) |
434 | { | |
435 | dr[0] = th->context.Dr0; | |
436 | dr[1] = th->context.Dr1; | |
437 | dr[2] = th->context.Dr2; | |
438 | dr[3] = th->context.Dr3; | |
439 | dr[6] = th->context.Dr6; | |
440 | dr[7] = th->context.Dr7; | |
441 | } | |
a244bdca | 442 | } |
3ade5333 CF |
443 | current_thread->reload_context = 0; |
444 | } | |
445 | ||
20a6ec49 | 446 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 447 | { |
8e860359 | 448 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 449 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 450 | } |
20a6ec49 | 451 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 452 | { |
8e860359 | 453 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 454 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 JM |
455 | } |
456 | else if (r >= 0) | |
56be3814 | 457 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 458 | else |
24e60978 | 459 | { |
20a6ec49 | 460 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
dc05df57 | 461 | do_windows_fetch_inferior_registers (regcache, r); |
24e60978 | 462 | } |
3cee93ac CF |
463 | } |
464 | ||
465 | static void | |
28439f5e PA |
466 | windows_fetch_inferior_registers (struct target_ops *ops, |
467 | struct regcache *regcache, int r) | |
3cee93ac | 468 | { |
2dc38344 | 469 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 470 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 471 | thread id in its events. */ |
3ade5333 | 472 | if (current_thread) |
dc05df57 | 473 | do_windows_fetch_inferior_registers (regcache, r); |
3cee93ac CF |
474 | } |
475 | ||
476 | static void | |
dc05df57 | 477 | do_windows_store_inferior_registers (const struct regcache *regcache, int r) |
3cee93ac | 478 | { |
3ade5333 | 479 | if (!current_thread) |
581e13c1 | 480 | /* Windows sometimes uses a non-existent thread id in its events. */; |
3ade5333 | 481 | else if (r >= 0) |
56be3814 | 482 | regcache_raw_collect (regcache, r, |
822c9732 | 483 | ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
484 | else |
485 | { | |
40a6adc1 | 486 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
dc05df57 | 487 | do_windows_store_inferior_registers (regcache, r); |
24e60978 SC |
488 | } |
489 | } | |
490 | ||
581e13c1 | 491 | /* Store a new register value into the current thread context. */ |
3cee93ac | 492 | static void |
28439f5e PA |
493 | windows_store_inferior_registers (struct target_ops *ops, |
494 | struct regcache *regcache, int r) | |
3cee93ac | 495 | { |
2dc38344 | 496 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 497 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 498 | thread id in its events. */ |
3ade5333 | 499 | if (current_thread) |
dc05df57 | 500 | do_windows_store_inferior_registers (regcache, r); |
3cee93ac | 501 | } |
24e60978 | 502 | |
7a9dd1b2 | 503 | /* Get the name of a given module at given base address. If base_address |
33605d39 CF |
504 | is zero return the first loaded module (which is always the name of the |
505 | executable). */ | |
3ee6f623 | 506 | static int |
d3653bf6 | 507 | get_module_name (LPVOID base_address, char *dll_name_ret) |
1e37c281 JM |
508 | { |
509 | DWORD len; | |
510 | MODULEINFO mi; | |
511 | int i; | |
8e860359 | 512 | HMODULE dh_buf[1]; |
581e13c1 MS |
513 | HMODULE *DllHandle = dh_buf; /* Set to temporary storage for |
514 | initial query. */ | |
1e37c281 | 515 | DWORD cbNeeded; |
33605d39 | 516 | #ifdef __CYGWIN__ |
b3c613f2 CF |
517 | cygwin_buf_t pathbuf[__PMAX]; /* Temporary storage prior to converting to |
518 | posix form. __PMAX is always enough | |
d0d0ab16 | 519 | as long as SO_NAME_MAX_PATH_SIZE is defined |
581e13c1 | 520 | as 512. */ |
33605d39 | 521 | #endif |
1e37c281 | 522 | |
1e37c281 | 523 | cbNeeded = 0; |
581e13c1 MS |
524 | /* Find size of buffer needed to handle list of modules loaded in |
525 | inferior. */ | |
2b008701 CF |
526 | if (!EnumProcessModules (current_process_handle, DllHandle, |
527 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1e37c281 JM |
528 | goto failed; |
529 | ||
581e13c1 | 530 | /* Allocate correct amount of space for module list. */ |
8e860359 | 531 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
532 | if (!DllHandle) |
533 | goto failed; | |
534 | ||
581e13c1 | 535 | /* Get the list of modules. */ |
2b008701 | 536 | if (!EnumProcessModules (current_process_handle, DllHandle, cbNeeded, |
33605d39 | 537 | &cbNeeded)) |
1e37c281 JM |
538 | goto failed; |
539 | ||
29fe111d | 540 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 | 541 | { |
581e13c1 | 542 | /* Get information on this module. */ |
2b008701 CF |
543 | if (!GetModuleInformation (current_process_handle, DllHandle[i], |
544 | &mi, sizeof (mi))) | |
8a3fe4f8 | 545 | error (_("Can't get module info")); |
1e37c281 | 546 | |
d3653bf6 | 547 | if (!base_address || mi.lpBaseOfDll == base_address) |
33605d39 | 548 | { |
581e13c1 | 549 | /* Try to find the name of the given module. */ |
d0d0ab16 | 550 | #ifdef __CYGWIN__ |
581e13c1 | 551 | /* Cygwin prefers that the path be in /x/y/z format. */ |
b3c613f2 CF |
552 | len = GetModuleFileNameEx (current_process_handle, |
553 | DllHandle[i], pathbuf, __PMAX); | |
d0d0ab16 CV |
554 | if (len == 0) |
555 | error (_("Error getting dll name: %lu."), GetLastError ()); | |
556 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, dll_name_ret, | |
b3c613f2 | 557 | __PMAX) < 0) |
d0d0ab16 CV |
558 | error (_("Error converting dll name to POSIX: %d."), errno); |
559 | #else | |
b3c613f2 CF |
560 | len = GetModuleFileNameEx (current_process_handle, |
561 | DllHandle[i], dll_name_ret, __PMAX); | |
33605d39 | 562 | if (len == 0) |
581e13c1 MS |
563 | error (_("Error getting dll name: %u."), |
564 | (unsigned) GetLastError ()); | |
33605d39 CF |
565 | #endif |
566 | return 1; /* success */ | |
567 | } | |
1e37c281 JM |
568 | } |
569 | ||
570 | failed: | |
571 | dll_name_ret[0] = '\0'; | |
33605d39 | 572 | return 0; /* failure */ |
1e37c281 JM |
573 | } |
574 | ||
450005e7 | 575 | /* Encapsulate the information required in a call to |
581e13c1 | 576 | symbol_file_add_args. */ |
8a892701 CF |
577 | struct safe_symbol_file_add_args |
578 | { | |
579 | char *name; | |
580 | int from_tty; | |
581 | struct section_addr_info *addrs; | |
582 | int mainline; | |
583 | int flags; | |
7c5c87c0 | 584 | struct ui_file *err, *out; |
8a892701 CF |
585 | struct objfile *ret; |
586 | }; | |
587 | ||
581e13c1 | 588 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 589 | struct lm_info |
02e423b9 | 590 | { |
d3653bf6 | 591 | LPVOID load_addr; |
3ee6f623 CF |
592 | }; |
593 | ||
594 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 595 | |
450005e7 | 596 | /* Call symbol_file_add with stderr redirected. We don't care if there |
581e13c1 | 597 | are errors. */ |
8a892701 CF |
598 | static int |
599 | safe_symbol_file_add_stub (void *argv) | |
600 | { | |
3ee6f623 | 601 | #define p ((struct safe_symbol_file_add_args *) argv) |
7eedccfa PP |
602 | const int add_flags = ((p->from_tty ? SYMFILE_VERBOSE : 0) |
603 | | (p->mainline ? SYMFILE_MAINLINE : 0)); | |
604 | p->ret = symbol_file_add (p->name, add_flags, p->addrs, p->flags); | |
8a892701 CF |
605 | return !!p->ret; |
606 | #undef p | |
607 | } | |
608 | ||
581e13c1 | 609 | /* Restore gdb's stderr after calling symbol_file_add. */ |
8a892701 | 610 | static void |
7c5c87c0 | 611 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 612 | { |
8e860359 | 613 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 614 | gdb_flush (gdb_stderr); |
7c5c87c0 | 615 | gdb_flush (gdb_stdout); |
d3ff4a77 | 616 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 617 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 618 | gdb_stderr = sp->err; |
9d3789f7 | 619 | gdb_stdout = sp->out; |
8e860359 | 620 | #undef sp |
8a892701 CF |
621 | } |
622 | ||
581e13c1 | 623 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
624 | static struct objfile * |
625 | safe_symbol_file_add (char *name, int from_tty, | |
626 | struct section_addr_info *addrs, | |
627 | int mainline, int flags) | |
8a892701 CF |
628 | { |
629 | struct safe_symbol_file_add_args p; | |
630 | struct cleanup *cleanup; | |
631 | ||
7c5c87c0 | 632 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 633 | |
7c5c87c0 CF |
634 | p.err = gdb_stderr; |
635 | p.out = gdb_stdout; | |
450005e7 | 636 | gdb_flush (gdb_stderr); |
7c5c87c0 | 637 | gdb_flush (gdb_stdout); |
d3ff4a77 | 638 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 639 | gdb_stdout = ui_file_new (); |
8a892701 CF |
640 | p.name = name; |
641 | p.from_tty = from_tty; | |
642 | p.addrs = addrs; | |
643 | p.mainline = mainline; | |
644 | p.flags = flags; | |
645 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
646 | ||
647 | do_cleanups (cleanup); | |
648 | return p.ret; | |
649 | } | |
650 | ||
de1b3c3d | 651 | static struct so_list * |
dc05df57 | 652 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 653 | { |
3ee6f623 | 654 | struct so_list *so; |
d0d0ab16 CV |
655 | char *p; |
656 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
657 | char buf[__PMAX]; |
658 | char cwd[__PMAX]; | |
3f8ad85b CF |
659 | WIN32_FIND_DATA w32_fd; |
660 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 661 | |
6badb179 CF |
662 | if (h == INVALID_HANDLE_VALUE) |
663 | strcpy (buf, name); | |
664 | else | |
3f8ad85b | 665 | { |
c914e0cc CF |
666 | FindClose (h); |
667 | strcpy (buf, name); | |
668 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
669 | { | |
670 | p = strrchr (buf, '\\'); | |
671 | if (p) | |
672 | p[1] = '\0'; | |
673 | SetCurrentDirectory (buf); | |
674 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
675 | SetCurrentDirectory (cwd); | |
676 | } | |
3f8ad85b | 677 | } |
3ee6f623 CF |
678 | if (strcasecmp (buf, "ntdll.dll") == 0) |
679 | { | |
680 | GetSystemDirectory (buf, sizeof (buf)); | |
681 | strcat (buf, "\\ntdll.dll"); | |
682 | } | |
d0d0ab16 | 683 | #else |
b3c613f2 | 684 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 685 | |
b3c613f2 | 686 | buf[0] = 0; |
d0d0ab16 CV |
687 | if (access (name, F_OK) != 0) |
688 | { | |
689 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 690 | #ifdef __USEWIDE |
d0d0ab16 CV |
691 | { |
692 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
693 | wcscat (buf, L"\\ntdll.dll"); | |
694 | } | |
b3c613f2 CF |
695 | #else |
696 | { | |
697 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
698 | strcat (buf, "\\ntdll.dll"); | |
699 | } | |
700 | #endif | |
d0d0ab16 CV |
701 | } |
702 | #endif | |
3929abe9 | 703 | so = XZALLOC (struct so_list); |
3ee6f623 CF |
704 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); |
705 | so->lm_info->load_addr = load_addr; | |
de1b3c3d | 706 | strcpy (so->so_original_name, name); |
10325bc5 PA |
707 | #ifndef __CYGWIN__ |
708 | strcpy (so->so_name, buf); | |
709 | #else | |
d0d0ab16 CV |
710 | if (buf[0]) |
711 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
712 | SO_NAME_MAX_PATH_SIZE); | |
713 | else | |
714 | { | |
60c5c021 | 715 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
716 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
717 | { | |
718 | strcpy (so->so_name, rname); | |
719 | free (rname); | |
720 | } | |
721 | else | |
722 | error (_("dll path too long")); | |
723 | } | |
de1b3c3d PA |
724 | /* Record cygwin1.dll .text start/end. */ |
725 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
726 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
727 | { | |
728 | bfd *abfd; | |
729 | asection *text = NULL; | |
730 | CORE_ADDR text_vma; | |
8e860359 | 731 | |
610dd7f9 | 732 | abfd = bfd_openr (so->so_name, "pei-i386"); |
a244bdca | 733 | |
de1b3c3d PA |
734 | if (!abfd) |
735 | return so; | |
736 | ||
737 | if (bfd_check_format (abfd, bfd_object)) | |
738 | text = bfd_get_section_by_name (abfd, ".text"); | |
739 | ||
740 | if (!text) | |
741 | { | |
742 | bfd_close (abfd); | |
743 | return so; | |
744 | } | |
745 | ||
7a9dd1b2 | 746 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 747 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
748 | file header and the section alignment. */ |
749 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
750 | load_addr + 0x1000); | |
dc05df57 | 751 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); |
de1b3c3d PA |
752 | |
753 | bfd_close (abfd); | |
754 | } | |
10325bc5 | 755 | #endif |
de1b3c3d PA |
756 | |
757 | return so; | |
8e860359 CF |
758 | } |
759 | ||
3ee6f623 | 760 | static char * |
dfe7f3ac CF |
761 | get_image_name (HANDLE h, void *address, int unicode) |
762 | { | |
d0d0ab16 | 763 | #ifdef __CYGWIN__ |
b3c613f2 | 764 | static char buf[__PMAX]; |
d0d0ab16 | 765 | #else |
b3c613f2 | 766 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 767 | #endif |
dfe7f3ac CF |
768 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
769 | char *address_ptr; | |
770 | int len = 0; | |
771 | char b[2]; | |
5732a500 | 772 | SIZE_T done; |
dfe7f3ac CF |
773 | |
774 | /* Attempt to read the name of the dll that was detected. | |
775 | This is documented to work only when actively debugging | |
581e13c1 | 776 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
777 | if (address == NULL) |
778 | return NULL; | |
779 | ||
dfe7f3ac | 780 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
781 | address isn't null. */ |
782 | if (!ReadProcessMemory (h, address, &address_ptr, | |
783 | sizeof (address_ptr), &done) | |
6f17862b | 784 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
785 | return NULL; |
786 | ||
581e13c1 | 787 | /* Find the length of the string. */ |
6f17862b CF |
788 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
789 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
790 | continue; | |
dfe7f3ac CF |
791 | |
792 | if (!unicode) | |
793 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
794 | else | |
795 | { | |
796 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
797 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
798 | &done); | |
d0d0ab16 | 799 | #ifdef __CYGWIN__ |
b3c613f2 | 800 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
801 | #else |
802 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
803 | 0, 0); | |
804 | #endif | |
dfe7f3ac CF |
805 | } |
806 | ||
807 | return buf; | |
808 | } | |
809 | ||
24e60978 SC |
810 | /* Wait for child to do something. Return pid of child, or -1 in case |
811 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 812 | static int |
0a65a603 | 813 | handle_load_dll (void *dummy) |
24e60978 | 814 | { |
3a4b77d8 | 815 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
b3c613f2 | 816 | char dll_buf[__PMAX]; |
450005e7 | 817 | char *dll_name = NULL; |
3cee93ac | 818 | |
3a4b77d8 | 819 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 820 | |
d3653bf6 | 821 | if (!get_module_name (event->lpBaseOfDll, dll_buf)) |
8e860359 | 822 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 823 | |
1e37c281 | 824 | dll_name = dll_buf; |
24e60978 | 825 | |
dfe7f3ac | 826 | if (*dll_name == '\0') |
de1b3c3d PA |
827 | dll_name = get_image_name (current_process_handle, |
828 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
829 | if (!dll_name) |
830 | return 1; | |
831 | ||
dc05df57 | 832 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 833 | solib_end = solib_end->next; |
450005e7 | 834 | |
a74ce742 PM |
835 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
836 | host_address_to_string (solib_end->lm_info->load_addr))); | |
7488902c | 837 | |
450005e7 CF |
838 | return 1; |
839 | } | |
840 | ||
3ee6f623 | 841 | static void |
dc05df57 | 842 | windows_free_so (struct so_list *so) |
3ee6f623 | 843 | { |
3ee6f623 CF |
844 | if (so->lm_info) |
845 | xfree (so->lm_info); | |
de1b3c3d | 846 | xfree (so); |
3cb8e7f6 CF |
847 | } |
848 | ||
d3ff4a77 | 849 | static int |
0a65a603 | 850 | handle_unload_dll (void *dummy) |
d3ff4a77 | 851 | { |
d3653bf6 | 852 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 853 | struct so_list *so; |
d3ff4a77 CF |
854 | |
855 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 856 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 857 | { |
3ee6f623 | 858 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
859 | so->next = sodel->next; |
860 | if (!so->next) | |
861 | solib_end = so; | |
7488902c PM |
862 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
863 | ||
dc05df57 | 864 | windows_free_so (sodel); |
3929abe9 | 865 | solib_add (NULL, 0, NULL, auto_solib_add); |
d3ff4a77 CF |
866 | return 1; |
867 | } | |
3929abe9 | 868 | |
ecc13e53 JB |
869 | /* We did not find any DLL that was previously loaded at this address, |
870 | so register a complaint. We do not report an error, because we have | |
871 | observed that this may be happening under some circumstances. For | |
872 | instance, running 32bit applications on x64 Windows causes us to receive | |
873 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
874 | events are apparently caused by the WOW layer, the interface between | |
875 | 32bit and 64bit worlds). */ | |
876 | complaint (&symfile_complaints, _("dll starting at %s not found."), | |
877 | host_address_to_string (lpBaseOfDll)); | |
d3ff4a77 CF |
878 | |
879 | return 0; | |
880 | } | |
881 | ||
581e13c1 | 882 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 883 | static void |
dc05df57 | 884 | windows_clear_solib (void) |
450005e7 | 885 | { |
450005e7 CF |
886 | solib_start.next = NULL; |
887 | solib_end = &solib_start; | |
450005e7 | 888 | } |
295732ea | 889 | |
581e13c1 | 890 | /* Load DLL symbol info. */ |
450005e7 | 891 | void |
7470a420 | 892 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 893 | { |
8e860359 | 894 | int n; |
450005e7 | 895 | dont_repeat (); |
8e860359 | 896 | |
450005e7 | 897 | if (args == NULL) |
8a3fe4f8 | 898 | error (_("dll-symbols requires a file name")); |
450005e7 | 899 | |
8e860359 CF |
900 | n = strlen (args); |
901 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
902 | { | |
903 | char *newargs = (char *) alloca (n + 4 + 1); | |
904 | strcpy (newargs, args); | |
905 | strcat (newargs, ".dll"); | |
906 | args = newargs; | |
907 | } | |
908 | ||
7470a420 | 909 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 910 | } |
450005e7 | 911 | |
3cee93ac CF |
912 | /* Handle DEBUG_STRING output from child process. |
913 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 914 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
915 | static int |
916 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
917 | { | |
a244bdca CF |
918 | char *s = NULL; |
919 | int retval = 0; | |
3cee93ac CF |
920 | |
921 | if (!target_read_string | |
2c647436 PM |
922 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
923 | &s, 1024, 0) | |
3cee93ac | 924 | || !s || !*s) |
a244bdca | 925 | /* nothing to do */; |
581e13c1 MS |
926 | else if (strncmp (s, _CYGWIN_SIGNAL_STRING, |
927 | sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0) | |
3cee93ac | 928 | { |
10325bc5 | 929 | #ifdef __CYGWIN__ |
d3a09475 | 930 | if (strncmp (s, "cYg", 3) != 0) |
10325bc5 | 931 | #endif |
8a3fe4f8 | 932 | warning (("%s"), s); |
3cee93ac | 933 | } |
cb832706 | 934 | #ifdef __COPY_CONTEXT_SIZE |
d3a09475 | 935 | else |
3cee93ac | 936 | { |
581e13c1 MS |
937 | /* Got a cygwin signal marker. A cygwin signal is followed by |
938 | the signal number itself and then optionally followed by the | |
939 | thread id and address to saved context within the DLL. If | |
940 | these are supplied, then the given thread is assumed to have | |
941 | issued the signal and the context from the thread is assumed | |
942 | to be stored at the given address in the inferior. Tell gdb | |
943 | to treat this like a real signal. */ | |
3cee93ac | 944 | char *p; |
3929abe9 | 945 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
a244bdca | 946 | int gotasig = target_signal_from_host (sig); |
0714f9bf SS |
947 | ourstatus->value.sig = gotasig; |
948 | if (gotasig) | |
a244bdca CF |
949 | { |
950 | LPCVOID x; | |
951 | DWORD n; | |
952 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
953 | retval = strtoul (p, &p, 0); | |
954 | if (!retval) | |
955 | retval = main_thread_id; | |
956 | else if ((x = (LPCVOID) strtoul (p, &p, 0)) | |
957 | && ReadProcessMemory (current_process_handle, x, | |
581e13c1 MS |
958 | &saved_context, |
959 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
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 | |
581e13c1 | 1100 | /* Record the context of the current thread. */ |
3cee93ac | 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 | { |
581e13c1 MS |
1110 | /* See if the access violation happened within the cygwin DLL |
1111 | itself. Cygwin uses a kind of exception handling to deal | |
1112 | with passed-in invalid addresses. gdb should not treat | |
1113 | these as real SEGVs since they will be silently handled by | |
1114 | cygwin. A real SEGV will (theoretically) be caught by | |
1115 | cygwin later in the process and will be sent as a | |
1116 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1117 | within the text segment of the DLL itself. */ | |
8da8e0b3 | 1118 | char *fn; |
581e13c1 MS |
1119 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) |
1120 | current_event.u.Exception.ExceptionRecord.ExceptionAddress; | |
1121 | ||
1122 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1123 | && addr < cygwin_load_end)) | |
a244bdca | 1124 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
581e13c1 MS |
1125 | && strncmp (fn, "KERNEL32!IsBad", |
1126 | strlen ("KERNEL32!IsBad")) == 0)) | |
8da8e0b3 CF |
1127 | return 0; |
1128 | } | |
10325bc5 | 1129 | #endif |
7393af7c PM |
1130 | break; |
1131 | case STATUS_STACK_OVERFLOW: | |
1132 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
1ef980b9 | 1133 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
1134 | break; |
1135 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1136 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
1137 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1138 | break; | |
1139 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1140 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
1141 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1142 | break; | |
1143 | case STATUS_FLOAT_INEXACT_RESULT: | |
1144 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
1145 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1146 | break; | |
1147 | case STATUS_FLOAT_INVALID_OPERATION: | |
1148 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1149 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1150 | break; | |
1151 | case STATUS_FLOAT_OVERFLOW: | |
1152 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1153 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1154 | break; | |
1155 | case STATUS_FLOAT_STACK_CHECK: | |
1156 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1157 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 | 1158 | break; |
3b7c8b74 | 1159 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1160 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1161 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1162 | break; | |
3b7c8b74 | 1163 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1164 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1165 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1166 | break; | |
3b7c8b74 | 1167 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1168 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
3b7c8b74 | 1169 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
3b7c8b74 | 1170 | break; |
7393af7c PM |
1171 | case STATUS_INTEGER_OVERFLOW: |
1172 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1173 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 SC |
1174 | break; |
1175 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1176 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
1ef980b9 SC |
1177 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1178 | break; | |
1179 | case DBG_CONTROL_C: | |
7393af7c | 1180 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
1ef980b9 | 1181 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1182 | break; |
1183 | case DBG_CONTROL_BREAK: | |
7393af7c | 1184 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1185 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
1ef980b9 SC |
1186 | break; |
1187 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1188 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
1ef980b9 SC |
1189 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1190 | break; | |
8227c82d | 1191 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1192 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1193 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1194 | break; | |
1195 | case EXCEPTION_PRIV_INSTRUCTION: | |
1196 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1197 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1198 | break; | |
1199 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1200 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1201 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1202 | break; | |
1ef980b9 | 1203 | default: |
581e13c1 | 1204 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1205 | if (current_event.u.Exception.dwFirstChance) |
a244bdca | 1206 | return -1; |
a74ce742 PM |
1207 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at %s\n", |
1208 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1209 | host_address_to_string ( | |
1210 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
24e60978 | 1211 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 1212 | break; |
24e60978 | 1213 | } |
24e60978 | 1214 | exception_count++; |
7393af7c | 1215 | last_sig = ourstatus->value.sig; |
36339ecd | 1216 | return 1; |
24e60978 SC |
1217 | } |
1218 | ||
3cee93ac | 1219 | /* Resume all artificially suspended threads if we are continuing |
581e13c1 | 1220 | execution. */ |
3cee93ac | 1221 | static BOOL |
dc05df57 | 1222 | windows_continue (DWORD continue_status, int id) |
3cee93ac CF |
1223 | { |
1224 | int i; | |
1225 | thread_info *th; | |
1226 | BOOL res; | |
1227 | ||
1c1238a5 | 1228 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%lx, %s);\n", |
7393af7c | 1229 | current_event.dwProcessId, current_event.dwThreadId, |
dfe7f3ac | 1230 | continue_status == DBG_CONTINUE ? |
7393af7c | 1231 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1232 | |
1233 | for (th = &thread_head; (th = th->next) != NULL;) | |
1234 | if ((id == -1 || id == (int) th->id) | |
1235 | && th->suspended) | |
1236 | { | |
1237 | if (debug_registers_changed) | |
1238 | { | |
1239 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1240 | th->context.Dr0 = dr[0]; | |
1241 | th->context.Dr1 = dr[1]; | |
1242 | th->context.Dr2 = dr[2]; | |
1243 | th->context.Dr3 = dr[3]; | |
1244 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1245 | th->context.Dr7 = dr[7]; | |
1246 | } | |
1247 | if (th->context.ContextFlags) | |
1248 | { | |
1249 | CHECK (SetThreadContext (th->h, &th->context)); | |
1250 | th->context.ContextFlags = 0; | |
1251 | } | |
1252 | if (th->suspended > 0) | |
1253 | (void) ResumeThread (th->h); | |
1254 | th->suspended = 0; | |
1255 | } | |
1256 | ||
0714f9bf SS |
1257 | res = ContinueDebugEvent (current_event.dwProcessId, |
1258 | current_event.dwThreadId, | |
1259 | continue_status); | |
3cee93ac | 1260 | |
fa4ba8da | 1261 | debug_registers_changed = 0; |
3cee93ac CF |
1262 | return res; |
1263 | } | |
1264 | ||
d6dc8049 CF |
1265 | /* Called in pathological case where Windows fails to send a |
1266 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1267 | static DWORD |
5439edaa | 1268 | fake_create_process (void) |
3ade5333 CF |
1269 | { |
1270 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1271 | current_event.dwProcessId); | |
bf25528d CF |
1272 | if (current_process_handle != NULL) |
1273 | open_process_used = 1; | |
1274 | else | |
1275 | { | |
b37520b6 | 1276 | error (_("OpenProcess call failed, GetLastError = %lud"), |
bf25528d CF |
1277 | GetLastError ()); |
1278 | /* We can not debug anything in that case. */ | |
1279 | } | |
3ade5333 | 1280 | main_thread_id = current_event.dwThreadId; |
711e434b PM |
1281 | current_thread = windows_add_thread ( |
1282 | ptid_build (current_event.dwProcessId, 0, | |
1283 | current_event.dwThreadId), | |
1284 | current_event.u.CreateThread.hThread, | |
1285 | current_event.u.CreateThread.lpThreadLocalBase); | |
3ade5333 CF |
1286 | return main_thread_id; |
1287 | } | |
1288 | ||
a244bdca | 1289 | static void |
28439f5e PA |
1290 | windows_resume (struct target_ops *ops, |
1291 | ptid_t ptid, int step, enum target_signal sig) | |
a244bdca CF |
1292 | { |
1293 | thread_info *th; | |
1294 | DWORD continue_status = DBG_CONTINUE; | |
1295 | ||
2dc38344 PA |
1296 | /* A specific PTID means `step only this thread id'. */ |
1297 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1298 | ||
1299 | /* If we're continuing all threads, it's the current inferior that | |
1300 | should be handled specially. */ | |
1301 | if (resume_all) | |
1302 | ptid = inferior_ptid; | |
a244bdca CF |
1303 | |
1304 | if (sig != TARGET_SIGNAL_0) | |
1305 | { | |
1306 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1307 | { | |
1308 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1309 | } | |
1310 | else if (sig == last_sig) | |
1311 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1312 | else | |
1313 | #if 0 | |
1314 | /* This code does not seem to work, because | |
1315 | the kernel does probably not consider changes in the ExceptionRecord | |
1316 | structure when passing the exception to the inferior. | |
1317 | Note that this seems possible in the exception handler itself. */ | |
1318 | { | |
1319 | int i; | |
1320 | for (i = 0; xlate[i].them != -1; i++) | |
1321 | if (xlate[i].us == sig) | |
1322 | { | |
581e13c1 MS |
1323 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
1324 | = xlate[i].them; | |
a244bdca CF |
1325 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1326 | break; | |
1327 | } | |
1328 | if (continue_status == DBG_CONTINUE) | |
1329 | { | |
1330 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1331 | } | |
1332 | } | |
1333 | #endif | |
1334 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", | |
1335 | last_sig)); | |
1336 | } | |
1337 | ||
1338 | last_sig = TARGET_SIGNAL_0; | |
1339 | ||
dc05df57 | 1340 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1341 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca | 1342 | |
581e13c1 | 1343 | /* Get context for currently selected thread. */ |
2dc38344 | 1344 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1345 | if (th) |
1346 | { | |
1347 | if (step) | |
1348 | { | |
581e13c1 | 1349 | /* Single step by setting t bit. */ |
a97b0ac8 UW |
1350 | struct regcache *regcache = get_current_regcache (); |
1351 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1352 | windows_fetch_inferior_registers (ops, regcache, | |
1353 | gdbarch_ps_regnum (gdbarch)); | |
a244bdca CF |
1354 | th->context.EFlags |= FLAG_TRACE_BIT; |
1355 | } | |
1356 | ||
1357 | if (th->context.ContextFlags) | |
1358 | { | |
1359 | if (debug_registers_changed) | |
1360 | { | |
1361 | th->context.Dr0 = dr[0]; | |
1362 | th->context.Dr1 = dr[1]; | |
1363 | th->context.Dr2 = dr[2]; | |
1364 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1365 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1366 | th->context.Dr7 = dr[7]; |
1367 | } | |
1368 | CHECK (SetThreadContext (th->h, &th->context)); | |
1369 | th->context.ContextFlags = 0; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1374 | Otherwise complain. */ |
a244bdca | 1375 | |
2dc38344 | 1376 | if (resume_all) |
dc05df57 | 1377 | windows_continue (continue_status, -1); |
2dc38344 | 1378 | else |
dc05df57 | 1379 | windows_continue (continue_status, ptid_get_tid (ptid)); |
a244bdca CF |
1380 | } |
1381 | ||
695de547 CF |
1382 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1383 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1384 | Note that this function is not available prior to Windows XP. In this case | |
1385 | we emit a warning. */ | |
1386 | BOOL WINAPI | |
1387 | ctrl_c_handler (DWORD event_type) | |
1388 | { | |
1389 | const int attach_flag = current_inferior ()->attach_flag; | |
1390 | ||
bb0613a5 PM |
1391 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1392 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1393 | return FALSE; |
1394 | ||
1395 | /* If the inferior and the debugger share the same console, do nothing as | |
1396 | the inferior has also received the Ctrl-C event. */ | |
1397 | if (!new_console && !attach_flag) | |
1398 | return TRUE; | |
1399 | ||
1400 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1401 | warning (_("Could not interrupt program. " |
1402 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1403 | |
1404 | /* Return true to tell that Ctrl-C has been handled. */ | |
1405 | return TRUE; | |
1406 | } | |
1407 | ||
8a892701 | 1408 | /* Get the next event from the child. Return 1 if the event requires |
695de547 | 1409 | handling by WFI (or whatever). */ |
1e37c281 | 1410 | static int |
28439f5e PA |
1411 | get_windows_debug_event (struct target_ops *ops, |
1412 | int pid, struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1413 | { |
1414 | BOOL debug_event; | |
8a892701 | 1415 | DWORD continue_status, event_code; |
87a45c96 | 1416 | thread_info *th; |
8a892701 | 1417 | static thread_info dummy_thread_info; |
450005e7 | 1418 | int retval = 0; |
1e37c281 | 1419 | |
7393af7c | 1420 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1421 | |
8a892701 | 1422 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1423 | goto out; |
1e37c281 JM |
1424 | |
1425 | event_count++; | |
1426 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1427 | |
8a892701 | 1428 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1429 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1430 | th = NULL; |
a244bdca | 1431 | have_saved_context = 0; |
8a892701 CF |
1432 | |
1433 | switch (event_code) | |
1e37c281 JM |
1434 | { |
1435 | case CREATE_THREAD_DEBUG_EVENT: | |
1436 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1437 | (unsigned) current_event.dwProcessId, |
1438 | (unsigned) current_event.dwThreadId, | |
1439 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1440 | if (saw_create != 1) |
3ade5333 | 1441 | { |
181e7f93 PA |
1442 | struct inferior *inf; |
1443 | inf = find_inferior_pid (current_event.dwProcessId); | |
1444 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1445 | { |
d6dc8049 CF |
1446 | /* Kludge around a Windows bug where first event is a create |
1447 | thread event. Caused when attached process does not have | |
581e13c1 | 1448 | a main thread. */ |
3a3e9ee3 | 1449 | retval = fake_create_process (); |
181e7f93 PA |
1450 | if (retval) |
1451 | saw_create++; | |
3ade5333 CF |
1452 | } |
1453 | break; | |
1454 | } | |
581e13c1 | 1455 | /* Record the existence of this thread. */ |
450005e7 | 1456 | retval = current_event.dwThreadId; |
dc05df57 | 1457 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1458 | current_event.dwThreadId), |
711e434b PM |
1459 | current_event.u.CreateThread.hThread, |
1460 | current_event.u.CreateThread.lpThreadLocalBase); | |
1461 | ||
1e37c281 JM |
1462 | break; |
1463 | ||
1464 | case EXIT_THREAD_DEBUG_EVENT: | |
1c1238a5 | 1465 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1466 | (unsigned) current_event.dwProcessId, |
1467 | (unsigned) current_event.dwThreadId, | |
1468 | "EXIT_THREAD_DEBUG_EVENT")); | |
b3c613f2 | 1469 | |
87a45c96 CF |
1470 | if (current_event.dwThreadId != main_thread_id) |
1471 | { | |
dc05df57 | 1472 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1473 | current_event.dwThreadId)); |
87a45c96 CF |
1474 | th = &dummy_thread_info; |
1475 | } | |
1e37c281 JM |
1476 | break; |
1477 | ||
1478 | case CREATE_PROCESS_DEBUG_EVENT: | |
1c1238a5 | 1479 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1480 | (unsigned) current_event.dwProcessId, |
1481 | (unsigned) current_event.dwThreadId, | |
1482 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1483 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1484 | if (++saw_create != 1) |
bf25528d | 1485 | break; |
1e37c281 | 1486 | |
dfe7f3ac | 1487 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1488 | if (main_thread_id) |
695de547 CF |
1489 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
1490 | main_thread_id)); | |
9d3789f7 | 1491 | main_thread_id = current_event.dwThreadId; |
581e13c1 | 1492 | /* Add the main thread. */ |
dc05df57 | 1493 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
695de547 | 1494 | current_event.dwThreadId), |
711e434b PM |
1495 | current_event.u.CreateProcessInfo.hThread, |
1496 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
3a3e9ee3 | 1497 | retval = current_event.dwThreadId; |
1e37c281 JM |
1498 | break; |
1499 | ||
1500 | case EXIT_PROCESS_DEBUG_EVENT: | |
1c1238a5 | 1501 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1502 | (unsigned) current_event.dwProcessId, |
1503 | (unsigned) current_event.dwThreadId, | |
1504 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1505 | if (!windows_initialization_done) |
1506 | { | |
1507 | target_terminal_ours (); | |
1508 | target_mourn_inferior (); | |
1509 | error (_("During startup program exited with code 0x%x."), | |
1510 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1511 | } | |
1512 | else if (saw_create == 1) | |
1513 | { | |
1514 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1515 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1516 | retval = main_thread_id; | |
1517 | } | |
8a892701 | 1518 | break; |
1e37c281 JM |
1519 | |
1520 | case LOAD_DLL_DEBUG_EVENT: | |
1c1238a5 | 1521 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1522 | (unsigned) current_event.dwProcessId, |
1523 | (unsigned) current_event.dwThreadId, | |
1524 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1525 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1526 | if (saw_create != 1) |
1527 | break; | |
8a892701 | 1528 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1529 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1530 | ourstatus->value.integer = 0; | |
9d3789f7 | 1531 | retval = main_thread_id; |
1e37c281 JM |
1532 | break; |
1533 | ||
1534 | case UNLOAD_DLL_DEBUG_EVENT: | |
1c1238a5 | 1535 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1536 | (unsigned) current_event.dwProcessId, |
1537 | (unsigned) current_event.dwThreadId, | |
1538 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1539 | if (saw_create != 1) |
1540 | break; | |
d3ff4a77 | 1541 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1542 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1543 | ourstatus->value.integer = 0; | |
1544 | retval = main_thread_id; | |
d3ff4a77 | 1545 | break; |
1e37c281 JM |
1546 | |
1547 | case EXCEPTION_DEBUG_EVENT: | |
1c1238a5 | 1548 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1549 | (unsigned) current_event.dwProcessId, |
1550 | (unsigned) current_event.dwThreadId, | |
1551 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1552 | if (saw_create != 1) |
1553 | break; | |
a244bdca CF |
1554 | switch (handle_exception (ourstatus)) |
1555 | { | |
1556 | case 0: | |
1557 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1558 | break; | |
1559 | case 1: | |
1560 | retval = current_event.dwThreadId; | |
1561 | break; | |
1562 | case -1: | |
1563 | last_sig = 1; | |
1564 | continue_status = -1; | |
1565 | break; | |
1566 | } | |
1e37c281 JM |
1567 | break; |
1568 | ||
581e13c1 | 1569 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
1c1238a5 | 1570 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1571 | (unsigned) current_event.dwProcessId, |
1572 | (unsigned) current_event.dwThreadId, | |
1573 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1574 | if (saw_create != 1) |
1575 | break; | |
a244bdca | 1576 | retval = handle_output_debug_string (ourstatus); |
1e37c281 | 1577 | break; |
9d3789f7 | 1578 | |
1e37c281 | 1579 | default: |
dfe7f3ac CF |
1580 | if (saw_create != 1) |
1581 | break; | |
29fe111d CF |
1582 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1583 | (DWORD) current_event.dwProcessId, | |
1584 | (DWORD) current_event.dwThreadId); | |
1585 | printf_unfiltered (" unknown event code %ld\n", | |
1e37c281 JM |
1586 | current_event.dwDebugEventCode); |
1587 | break; | |
1588 | } | |
1589 | ||
dfe7f3ac | 1590 | if (!retval || saw_create != 1) |
a244bdca CF |
1591 | { |
1592 | if (continue_status == -1) | |
02529b48 | 1593 | windows_resume (ops, minus_one_ptid, 0, 1); |
a244bdca | 1594 | else |
dc05df57 | 1595 | CHECK (windows_continue (continue_status, -1)); |
a244bdca | 1596 | } |
450005e7 | 1597 | else |
9d3789f7 | 1598 | { |
2dc38344 PA |
1599 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
1600 | retval); | |
3ade5333 | 1601 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1602 | } |
1e37c281 JM |
1603 | |
1604 | out: | |
450005e7 | 1605 | return retval; |
1e37c281 JM |
1606 | } |
1607 | ||
2dc38344 | 1608 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1609 | static ptid_t |
117de6a9 | 1610 | windows_wait (struct target_ops *ops, |
47608cb1 | 1611 | ptid_t ptid, struct target_waitstatus *ourstatus, int options) |
24e60978 | 1612 | { |
2dc38344 | 1613 | int pid = -1; |
39f77062 | 1614 | |
c44537cf CV |
1615 | target_terminal_ours (); |
1616 | ||
24e60978 SC |
1617 | /* We loop when we get a non-standard exception rather than return |
1618 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1619 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1620 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1621 | isn't necessarily what you think it is. */ |
24e60978 SC |
1622 | |
1623 | while (1) | |
450005e7 | 1624 | { |
c57918b2 | 1625 | int retval; |
2b008701 | 1626 | |
695de547 CF |
1627 | /* If the user presses Ctrl-c while the debugger is waiting |
1628 | for an event, he expects the debugger to interrupt his program | |
1629 | and to get the prompt back. There are two possible situations: | |
1630 | ||
1631 | - The debugger and the program do not share the console, in | |
1632 | which case the Ctrl-c event only reached the debugger. | |
1633 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1634 | the inferior. Note that this case is working starting with |
1635 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1636 | inferior console. |
1637 | ||
1638 | - The debugger and the program share the same console, in which | |
1639 | case both debugger and inferior will receive the Ctrl-c event. | |
1640 | In that case the ctrl_c handler will ignore the event, as the | |
1641 | Ctrl-c event generated inside the inferior will trigger the | |
1642 | expected debug event. | |
1643 | ||
1644 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1645 | signal first and the delay until GDB receives that signal | |
1646 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1647 | after we have unblocked the CTRL+C handler. This would | |
1648 | lead to the debugger stopping prematurely while handling | |
1649 | the new-thread event that comes with the handling of the SIGINT | |
1650 | inside the inferior, and then stop again immediately when | |
1651 | the user tries to resume the execution in the inferior. | |
1652 | This is a classic race that we should try to fix one day. */ | |
1653 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
28439f5e | 1654 | retval = get_windows_debug_event (ops, pid, ourstatus); |
695de547 | 1655 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1656 | |
450005e7 | 1657 | if (retval) |
2dc38344 | 1658 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1659 | else |
1660 | { | |
1661 | int detach = 0; | |
3cee93ac | 1662 | |
98bbd631 AC |
1663 | if (deprecated_ui_loop_hook != NULL) |
1664 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1665 | |
450005e7 | 1666 | if (detach) |
7d85a9c0 | 1667 | windows_kill_inferior (ops); |
450005e7 CF |
1668 | } |
1669 | } | |
24e60978 SC |
1670 | } |
1671 | ||
9d3789f7 | 1672 | static void |
dc05df57 | 1673 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 CF |
1674 | { |
1675 | extern int stop_after_trap; | |
fa4ba8da | 1676 | int i; |
d6b48e9c | 1677 | struct inferior *inf; |
2020b7ab | 1678 | struct thread_info *tp; |
9d3789f7 | 1679 | |
7393af7c | 1680 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1681 | event_count = 0; |
1682 | exception_count = 0; | |
bf25528d | 1683 | open_process_used = 0; |
fa4ba8da | 1684 | debug_registers_changed = 0; |
dfe7f3ac | 1685 | debug_registers_used = 0; |
fa4ba8da PM |
1686 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1687 | dr[i] = 0; | |
10325bc5 | 1688 | #ifdef __CYGWIN__ |
de1b3c3d | 1689 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1690 | #endif |
9d3789f7 CF |
1691 | current_event.dwProcessId = pid; |
1692 | memset (¤t_event, 0, sizeof (current_event)); | |
0795be10 | 1693 | push_target (ops); |
cb851954 | 1694 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1695 | windows_clear_solib (); |
9d3789f7 CF |
1696 | clear_proceed_status (); |
1697 | init_wait_for_inferior (); | |
1698 | ||
6c95b8df PA |
1699 | inf = current_inferior (); |
1700 | inferior_appeared (inf, pid); | |
181e7f93 | 1701 | inf->attach_flag = attaching; |
7f9f62ba | 1702 | |
9f9d052e PM |
1703 | /* Make the new process the current inferior, so terminal handling |
1704 | can rely on it. When attaching, we don't know about any thread | |
1705 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1706 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1707 | inferior_ptid = pid_to_ptid (pid); |
1708 | ||
c44537cf | 1709 | terminal_init_inferior_with_pgrp (pid); |
9d3789f7 CF |
1710 | target_terminal_inferior (); |
1711 | ||
16d905e2 | 1712 | windows_initialization_done = 0; |
16c381f0 | 1713 | inf->control.stop_soon = STOP_QUIETLY; |
9d3789f7 CF |
1714 | while (1) |
1715 | { | |
1716 | stop_after_trap = 1; | |
e4c8541f | 1717 | wait_for_inferior (); |
2020b7ab | 1718 | tp = inferior_thread (); |
16c381f0 JK |
1719 | if (tp->suspend.stop_signal != TARGET_SIGNAL_TRAP) |
1720 | resume (0, tp->suspend.stop_signal); | |
9d3789f7 CF |
1721 | else |
1722 | break; | |
1723 | } | |
eff8332b | 1724 | |
16d905e2 | 1725 | windows_initialization_done = 1; |
16c381f0 | 1726 | inf->control.stop_soon = NO_STOP_QUIETLY; |
9d3789f7 CF |
1727 | stop_after_trap = 0; |
1728 | return; | |
1729 | } | |
1730 | ||
616a9dc4 CV |
1731 | /* Try to set or remove a user privilege to the current process. Return -1 |
1732 | if that fails, the previous setting of that privilege otherwise. | |
1733 | ||
1734 | This code is copied from the Cygwin source code and rearranged to allow | |
1735 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 1736 | available on NT/2K/XP. */ |
616a9dc4 CV |
1737 | static int |
1738 | set_process_privilege (const char *privilege, BOOL enable) | |
1739 | { | |
616a9dc4 CV |
1740 | HANDLE token_hdl = NULL; |
1741 | LUID restore_priv; | |
1742 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1743 | int ret = -1; | |
1744 | DWORD size; | |
1745 | ||
616a9dc4 CV |
1746 | if (!OpenProcessToken (GetCurrentProcess (), |
1747 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1748 | &token_hdl)) | |
1749 | goto out; | |
1750 | ||
418c6cb3 | 1751 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1752 | goto out; |
1753 | ||
1754 | new_priv.PrivilegeCount = 1; | |
1755 | new_priv.Privileges[0].Luid = restore_priv; | |
1756 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1757 | ||
1758 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1759 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1760 | goto out; |
1761 | #if 0 | |
1762 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1763 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 1764 | windows_attach(). */ |
616a9dc4 | 1765 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 1766 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
1767 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
1768 | goto out; | |
1769 | #endif | |
1770 | ||
1771 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1772 | ||
1773 | out: | |
1774 | if (token_hdl) | |
1775 | CloseHandle (token_hdl); | |
1776 | ||
1777 | return ret; | |
1778 | } | |
1779 | ||
02cc9f49 | 1780 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1781 | static void |
dc05df57 | 1782 | windows_attach (struct target_ops *ops, char *args, int from_tty) |
24e60978 SC |
1783 | { |
1784 | BOOL ok; | |
559e75c0 | 1785 | DWORD pid; |
24e60978 | 1786 | |
74164c56 | 1787 | pid = parse_pid_to_attach (args); |
24e60978 | 1788 | |
616a9dc4 CV |
1789 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1790 | { | |
1791 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
1792 | printf_unfiltered ("This can cause attach to " |
1793 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
1794 | } |
1795 | ||
dc05df57 | 1796 | windows_init_thread_list (); |
9d3789f7 | 1797 | ok = DebugActiveProcess (pid); |
91a175b3 | 1798 | saw_create = 0; |
24e60978 | 1799 | |
10325bc5 | 1800 | #ifdef __CYGWIN__ |
24e60978 | 1801 | if (!ok) |
baa93fa6 | 1802 | { |
581e13c1 | 1803 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
1804 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
1805 | ||
1806 | if (pid > 0) | |
1807 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1808 | } |
1809 | #endif | |
baa93fa6 | 1810 | |
10325bc5 PA |
1811 | if (!ok) |
1812 | error (_("Can't attach to process.")); | |
24e60978 | 1813 | |
2b008701 | 1814 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1815 | |
24e60978 SC |
1816 | if (from_tty) |
1817 | { | |
1818 | char *exec_file = (char *) get_exec_file (0); | |
1819 | ||
1820 | if (exec_file) | |
1821 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1822 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1823 | else |
1824 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1825 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1826 | |
1827 | gdb_flush (gdb_stdout); | |
1828 | } | |
1829 | ||
dc05df57 | 1830 | do_initial_windows_stuff (ops, pid, 1); |
9d3789f7 | 1831 | target_terminal_ours (); |
24e60978 SC |
1832 | } |
1833 | ||
24e60978 | 1834 | static void |
dc05df57 | 1835 | windows_detach (struct target_ops *ops, char *args, int from_tty) |
24e60978 | 1836 | { |
02cc9f49 CV |
1837 | int detached = 1; |
1838 | ||
2b008701 CF |
1839 | ptid_t ptid = {-1}; |
1840 | windows_resume (ops, ptid, 0, TARGET_SIGNAL_0); | |
96998ce7 | 1841 | |
2b008701 CF |
1842 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
1843 | { | |
1844 | error (_("Can't detach process %lu (error %lu)"), | |
1845 | current_event.dwProcessId, GetLastError ()); | |
1846 | detached = 0; | |
02cc9f49 | 1847 | } |
2b008701 CF |
1848 | DebugSetProcessKillOnExit (FALSE); |
1849 | ||
02cc9f49 | 1850 | if (detached && from_tty) |
24e60978 SC |
1851 | { |
1852 | char *exec_file = get_exec_file (0); | |
1853 | if (exec_file == 0) | |
1854 | exec_file = ""; | |
02cc9f49 CV |
1855 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1856 | current_event.dwProcessId); | |
24e60978 SC |
1857 | gdb_flush (gdb_stdout); |
1858 | } | |
7f9f62ba | 1859 | |
39f77062 | 1860 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1861 | detach_inferior (current_event.dwProcessId); |
1862 | ||
0795be10 | 1863 | unpush_target (ops); |
24e60978 SC |
1864 | } |
1865 | ||
3ee6f623 | 1866 | static char * |
dc05df57 | 1867 | windows_pid_to_exec_file (int pid) |
47216e51 | 1868 | { |
b3c613f2 | 1869 | static char path[__PMAX]; |
10325bc5 | 1870 | #ifdef __CYGWIN__ |
581e13c1 | 1871 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
1872 | int nchars; |
1873 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
2dc38344 | 1874 | sprintf (procexe, "/proc/%u/exe", pid); |
33605d39 CF |
1875 | nchars = readlink (procexe, path, sizeof(path)); |
1876 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 1877 | { |
33605d39 CF |
1878 | path[nchars] = '\0'; /* Got it */ |
1879 | return path; | |
47216e51 | 1880 | } |
10325bc5 PA |
1881 | #endif |
1882 | ||
33605d39 | 1883 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 1884 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
33605d39 CF |
1885 | if (!get_module_name (0, path)) |
1886 | path[0] = '\0'; | |
1887 | ||
1888 | return path; | |
47216e51 CV |
1889 | } |
1890 | ||
24e60978 SC |
1891 | /* Print status information about what we're accessing. */ |
1892 | ||
1893 | static void | |
dc05df57 | 1894 | windows_files_info (struct target_ops *ignore) |
24e60978 | 1895 | { |
181e7f93 PA |
1896 | struct inferior *inf = current_inferior (); |
1897 | ||
24e60978 | 1898 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
1899 | inf->attach_flag ? "attached" : "child", |
1900 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
1901 | } |
1902 | ||
24e60978 | 1903 | static void |
dc05df57 | 1904 | windows_open (char *arg, int from_tty) |
24e60978 | 1905 | { |
8a3fe4f8 | 1906 | error (_("Use the \"run\" command to start a Unix child process.")); |
24e60978 SC |
1907 | } |
1908 | ||
cd44747c PM |
1909 | /* Modify CreateProcess parameters for use of a new separate console. |
1910 | Parameters are: | |
1911 | *FLAGS: DWORD parameter for general process creation flags. | |
1912 | *SI: STARTUPINFO structure, for which the console window size and | |
1913 | console buffer size is filled in if GDB is running in a console. | |
1914 | to create the new console. | |
1915 | The size of the used font is not available on all versions of | |
1916 | Windows OS. Furthermore, the current font might not be the default | |
1917 | font, but this is still better than before. | |
1918 | If the windows and buffer sizes are computed, | |
1919 | SI->DWFLAGS is changed so that this information is used | |
1920 | by CreateProcess function. */ | |
1921 | ||
1922 | static void | |
1923 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
1924 | { | |
1925 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
1926 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
1927 | ||
1928 | if (hconsole != INVALID_HANDLE_VALUE) | |
1929 | { | |
1930 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
1931 | COORD font_size; | |
1932 | CONSOLE_FONT_INFO cfi; | |
1933 | ||
1934 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
1935 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
1936 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
1937 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
1938 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
1939 | if (font_size.X) | |
1940 | si->dwXSize *= font_size.X; | |
1941 | else | |
1942 | si->dwXSize *= 8; | |
1943 | if (font_size.Y) | |
1944 | si->dwYSize *= font_size.Y; | |
1945 | else | |
1946 | si->dwYSize *= 12; | |
1947 | si->dwXCountChars = sbinfo.dwSize.X; | |
1948 | si->dwYCountChars = sbinfo.dwSize.Y; | |
1949 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
1950 | } | |
1951 | *flags |= CREATE_NEW_CONSOLE; | |
1952 | } | |
1953 | ||
dc05df57 | 1954 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
1955 | EXEC_FILE is the file to run. |
1956 | ALLARGS is a string containing the arguments to the program. | |
1957 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1958 | ||
24e60978 | 1959 | static void |
dc05df57 | 1960 | windows_create_inferior (struct target_ops *ops, char *exec_file, |
136d6dae | 1961 | char *allargs, char **in_env, int from_tty) |
24e60978 | 1962 | { |
b3c613f2 | 1963 | STARTUPINFO si; |
41b4aadc | 1964 | #ifdef __CYGWIN__ |
b3c613f2 CF |
1965 | cygwin_buf_t real_path[__PMAX]; |
1966 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 | 1967 | const char *sh; |
b3c613f2 CF |
1968 | cygwin_buf_t *toexec; |
1969 | cygwin_buf_t *cygallargs; | |
1970 | cygwin_buf_t *args; | |
d0d0ab16 | 1971 | size_t len; |
2becadee CF |
1972 | int tty; |
1973 | int ostdin, ostdout, ostderr; | |
41b4aadc | 1974 | #else |
b3c613f2 CF |
1975 | char real_path[__PMAX]; |
1976 | char shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 CV |
1977 | char *toexec; |
1978 | char *args; | |
41b4aadc CF |
1979 | HANDLE tty; |
1980 | #endif | |
d0d0ab16 CV |
1981 | PROCESS_INFORMATION pi; |
1982 | BOOL ret; | |
1983 | DWORD flags = 0; | |
3cb3b8df | 1984 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
1985 | |
1986 | if (!exec_file) | |
8a3fe4f8 | 1987 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
1988 | |
1989 | memset (&si, 0, sizeof (si)); | |
1990 | si.cb = sizeof (si); | |
1991 | ||
d0d0ab16 CV |
1992 | if (new_group) |
1993 | flags |= CREATE_NEW_PROCESS_GROUP; | |
1994 | ||
1995 | if (new_console) | |
cd44747c | 1996 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 1997 | |
10325bc5 | 1998 | #ifdef __CYGWIN__ |
349b409f | 1999 | if (!useshell) |
dfe7f3ac | 2000 | { |
d0d0ab16 CV |
2001 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2002 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2003 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2004 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2005 | toexec = real_path; |
b3c613f2 | 2006 | #ifdef __USEWIDE |
d0d0ab16 CV |
2007 | len = mbstowcs (NULL, allargs, 0) + 1; |
2008 | if (len == (size_t) -1) | |
2009 | error (_("Error starting executable: %d"), errno); | |
2010 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2011 | mbstowcs (cygallargs, allargs, len); | |
60c5c021 CF |
2012 | #else |
2013 | cygallargs = allargs; | |
b3c613f2 | 2014 | #endif |
dfe7f3ac CF |
2015 | } |
2016 | else | |
2017 | { | |
349b409f CF |
2018 | sh = getenv ("SHELL"); |
2019 | if (!sh) | |
2020 | sh = "/bin/sh"; | |
b3c613f2 | 2021 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2022 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2023 | #ifdef __USEWIDE |
d0d0ab16 CV |
2024 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2025 | + mbstowcs (NULL, allargs, 0) + 2; | |
2026 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2027 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2028 | #else |
581e13c1 MS |
2029 | cygallargs = (char *) |
2030 | alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
b3c613f2 CF |
2031 | + strlen (allargs) + 2); |
2032 | sprintf (cygallargs, " -c 'exec %s %s'", exec_file, allargs); | |
2033 | #endif | |
dfe7f3ac | 2034 | toexec = shell; |
d0d0ab16 | 2035 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2036 | } |
b3c613f2 CF |
2037 | |
2038 | #ifdef __USEWIDE | |
2039 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2040 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2041 | wcscpy (args, toexec); |
2042 | wcscat (args, L" "); | |
2043 | wcscat (args, cygallargs); | |
b3c613f2 CF |
2044 | #else |
2045 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); | |
2046 | strcpy (args, toexec); | |
2047 | strcat (args, " "); | |
2048 | strcat (args, cygallargs); | |
2049 | #endif | |
2050 | ||
e88c49c3 | 2051 | /* Prepare the environment vars for CreateProcess. */ |
002c07a9 | 2052 | cygwin_internal (CW_SYNC_WINENV); |
1750a5ef | 2053 | |
2becadee CF |
2054 | if (!inferior_io_terminal) |
2055 | tty = ostdin = ostdout = ostderr = -1; | |
2056 | else | |
2057 | { | |
2058 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2059 | if (tty < 0) | |
2060 | { | |
2061 | print_sys_errmsg (inferior_io_terminal, errno); | |
2062 | ostdin = ostdout = ostderr = -1; | |
2063 | } | |
2064 | else | |
2065 | { | |
2066 | ostdin = dup (0); | |
2067 | ostdout = dup (1); | |
2068 | ostderr = dup (2); | |
2069 | dup2 (tty, 0); | |
2070 | dup2 (tty, 1); | |
2071 | dup2 (tty, 2); | |
2072 | } | |
2073 | } | |
d0d0ab16 CV |
2074 | |
2075 | windows_init_thread_list (); | |
b3c613f2 CF |
2076 | ret = CreateProcess (0, |
2077 | args, /* command line */ | |
2078 | NULL, /* Security */ | |
2079 | NULL, /* thread */ | |
2080 | TRUE, /* inherit handles */ | |
2081 | flags, /* start flags */ | |
2082 | NULL, /* environment */ | |
2083 | NULL, /* current directory */ | |
2084 | &si, | |
2085 | &pi); | |
d0d0ab16 CV |
2086 | if (tty >= 0) |
2087 | { | |
2088 | close (tty); | |
2089 | dup2 (ostdin, 0); | |
2090 | dup2 (ostdout, 1); | |
2091 | dup2 (ostderr, 2); | |
2092 | close (ostdin); | |
2093 | close (ostdout); | |
2094 | close (ostderr); | |
2095 | } | |
41b4aadc | 2096 | #else |
b3c613f2 | 2097 | toexec = exec_file; |
d0d0ab16 CV |
2098 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
2099 | strcpy (args, toexec); | |
2100 | strcat (args, " "); | |
2101 | strcat (args, allargs); | |
2102 | ||
d0d0ab16 CV |
2103 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2104 | ||
41b4aadc CF |
2105 | if (!inferior_io_terminal) |
2106 | tty = INVALID_HANDLE_VALUE; | |
2107 | else | |
2108 | { | |
2109 | SECURITY_ATTRIBUTES sa; | |
2110 | sa.nLength = sizeof(sa); | |
2111 | sa.lpSecurityDescriptor = 0; | |
2112 | sa.bInheritHandle = TRUE; | |
2113 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2114 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2115 | if (tty == INVALID_HANDLE_VALUE) | |
2116 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2117 | inferior_io_terminal, (unsigned) GetLastError ()); | |
2118 | else | |
2119 | { | |
2120 | si.hStdInput = tty; | |
2121 | si.hStdOutput = tty; | |
2122 | si.hStdError = tty; | |
2123 | si.dwFlags |= STARTF_USESTDHANDLES; | |
2124 | } | |
2125 | } | |
2becadee | 2126 | |
dc05df57 | 2127 | windows_init_thread_list (); |
d0d0ab16 CV |
2128 | ret = CreateProcessA (0, |
2129 | args, /* command line */ | |
2130 | NULL, /* Security */ | |
2131 | NULL, /* thread */ | |
2132 | TRUE, /* inherit handles */ | |
2133 | flags, /* start flags */ | |
2134 | NULL, /* environment */ | |
2135 | NULL, /* current directory */ | |
2136 | &si, | |
2137 | &pi); | |
41b4aadc CF |
2138 | if (tty != INVALID_HANDLE_VALUE) |
2139 | CloseHandle (tty); | |
10325bc5 | 2140 | #endif |
2becadee | 2141 | |
24e60978 | 2142 | if (!ret) |
8a3fe4f8 AC |
2143 | error (_("Error creating process %s, (error %d)."), |
2144 | exec_file, (unsigned) GetLastError ()); | |
24e60978 | 2145 | |
c1766e7d PM |
2146 | CloseHandle (pi.hThread); |
2147 | CloseHandle (pi.hProcess); | |
2148 | ||
dfe7f3ac CF |
2149 | if (useshell && shell[0] != '\0') |
2150 | saw_create = -1; | |
2151 | else | |
2152 | saw_create = 0; | |
2153 | ||
dc05df57 | 2154 | do_initial_windows_stuff (ops, pi.dwProcessId, 0); |
d3a09475 | 2155 | |
dc05df57 | 2156 | /* windows_continue (DBG_CONTINUE, -1); */ |
24e60978 SC |
2157 | } |
2158 | ||
2159 | static void | |
dc05df57 | 2160 | windows_mourn_inferior (struct target_ops *ops) |
24e60978 | 2161 | { |
dc05df57 | 2162 | (void) windows_continue (DBG_CONTINUE, -1); |
fa4ba8da | 2163 | i386_cleanup_dregs(); |
bf25528d CF |
2164 | if (open_process_used) |
2165 | { | |
2166 | CHECK (CloseHandle (current_process_handle)); | |
2167 | open_process_used = 0; | |
2168 | } | |
0795be10 | 2169 | unpush_target (ops); |
24e60978 SC |
2170 | generic_mourn_inferior (); |
2171 | } | |
2172 | ||
24e60978 | 2173 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 2174 | ^C on the controlling terminal. */ |
24e60978 | 2175 | |
b607efe7 | 2176 | static void |
dc05df57 | 2177 | windows_stop (ptid_t ptid) |
24e60978 | 2178 | { |
1ef980b9 | 2179 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2180 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2181 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2182 | } |
2183 | ||
3ee6f623 | 2184 | static int |
dc05df57 | 2185 | windows_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, |
0a65a603 AC |
2186 | int write, struct mem_attrib *mem, |
2187 | struct target_ops *target) | |
24e60978 | 2188 | { |
5732a500 | 2189 | SIZE_T done = 0; |
24e60978 SC |
2190 | if (write) |
2191 | { | |
29fe111d | 2192 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
2c647436 | 2193 | len, (DWORD) (uintptr_t) memaddr)); |
2b008701 | 2194 | if (!WriteProcessMemory (current_process_handle, |
2c647436 | 2195 | (LPVOID) (uintptr_t) memaddr, our, |
6f17862b CF |
2196 | len, &done)) |
2197 | done = 0; | |
2b008701 | 2198 | FlushInstructionCache (current_process_handle, |
2c647436 | 2199 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2200 | } |
2201 | else | |
2202 | { | |
29fe111d | 2203 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
2c647436 | 2204 | len, (DWORD) (uintptr_t) memaddr)); |
2b008701 | 2205 | if (!ReadProcessMemory (current_process_handle, |
2c647436 | 2206 | (LPCVOID) (uintptr_t) memaddr, our, |
6f17862b CF |
2207 | len, &done)) |
2208 | done = 0; | |
24e60978 SC |
2209 | } |
2210 | return done; | |
2211 | } | |
2212 | ||
3ee6f623 | 2213 | static void |
7d85a9c0 | 2214 | windows_kill_inferior (struct target_ops *ops) |
24e60978 | 2215 | { |
3cee93ac CF |
2216 | CHECK (TerminateProcess (current_process_handle, 0)); |
2217 | ||
b5edcb45 ILT |
2218 | for (;;) |
2219 | { | |
dc05df57 | 2220 | if (!windows_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 2221 | break; |
3cee93ac | 2222 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2223 | break; |
3cee93ac | 2224 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2225 | break; |
2226 | } | |
2227 | ||
581e13c1 | 2228 | target_mourn_inferior (); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
2229 | } |
2230 | ||
24e60978 | 2231 | static void |
dc05df57 | 2232 | windows_prepare_to_store (struct regcache *regcache) |
24e60978 | 2233 | { |
581e13c1 | 2234 | /* Do nothing, since we can store individual regs. */ |
24e60978 SC |
2235 | } |
2236 | ||
2237 | static int | |
dc05df57 | 2238 | windows_can_run (void) |
24e60978 SC |
2239 | { |
2240 | return 1; | |
2241 | } | |
2242 | ||
2243 | static void | |
dc05df57 | 2244 | windows_close (int x) |
24e60978 | 2245 | { |
dc05df57 | 2246 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
3bccec63 | 2247 | PIDGET (inferior_ptid))); |
24e60978 | 2248 | } |
1ef980b9 | 2249 | |
581e13c1 | 2250 | /* Convert pid to printable format. */ |
3ee6f623 | 2251 | static char * |
117de6a9 | 2252 | windows_pid_to_str (struct target_ops *ops, ptid_t ptid) |
24e60978 | 2253 | { |
3ee6f623 | 2254 | static char buf[80]; |
3ee6f623 | 2255 | |
2dc38344 PA |
2256 | if (ptid_get_tid (ptid) != 0) |
2257 | { | |
2258 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2259 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2260 | return buf; | |
2261 | } | |
2262 | ||
2263 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2264 | } |
2265 | ||
de1b3c3d | 2266 | static LONGEST |
dc05df57 | 2267 | windows_xfer_shared_libraries (struct target_ops *ops, |
de1b3c3d PA |
2268 | enum target_object object, const char *annex, |
2269 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2270 | ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2271 | { |
de1b3c3d PA |
2272 | struct obstack obstack; |
2273 | const char *buf; | |
2274 | LONGEST len_avail; | |
3cb8e7f6 | 2275 | struct so_list *so; |
3cb8e7f6 | 2276 | |
de1b3c3d PA |
2277 | if (writebuf) |
2278 | return -1; | |
3cb8e7f6 | 2279 | |
de1b3c3d PA |
2280 | obstack_init (&obstack); |
2281 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2282 | for (so = solib_start.next; so; so = so->next) | |
581e13c1 MS |
2283 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) |
2284 | (uintptr_t) so->lm_info->load_addr, | |
5af949e3 | 2285 | target_gdbarch, &obstack); |
de1b3c3d | 2286 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2287 | |
de1b3c3d PA |
2288 | buf = obstack_finish (&obstack); |
2289 | len_avail = strlen (buf); | |
2290 | if (offset >= len_avail) | |
2291 | return 0; | |
3cb8e7f6 | 2292 | |
de1b3c3d PA |
2293 | if (len > len_avail - offset) |
2294 | len = len_avail - offset; | |
2295 | memcpy (readbuf, buf + offset, len); | |
3cb8e7f6 | 2296 | |
de1b3c3d PA |
2297 | obstack_free (&obstack, NULL); |
2298 | return len; | |
3cb8e7f6 CF |
2299 | } |
2300 | ||
de1b3c3d | 2301 | static LONGEST |
dc05df57 | 2302 | windows_xfer_partial (struct target_ops *ops, enum target_object object, |
de1b3c3d PA |
2303 | const char *annex, gdb_byte *readbuf, |
2304 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2305 | { |
de1b3c3d | 2306 | switch (object) |
3cb8e7f6 | 2307 | { |
de1b3c3d PA |
2308 | case TARGET_OBJECT_MEMORY: |
2309 | if (readbuf) | |
2310 | return (*ops->deprecated_xfer_memory) (offset, readbuf, | |
244e85c8 | 2311 | len, 0/*read*/, NULL, ops); |
de1b3c3d PA |
2312 | if (writebuf) |
2313 | return (*ops->deprecated_xfer_memory) (offset, (gdb_byte *) writebuf, | |
2314 | len, 1/*write*/, NULL, ops); | |
2315 | return -1; | |
2316 | ||
2317 | case TARGET_OBJECT_LIBRARIES: | |
dc05df57 | 2318 | return windows_xfer_shared_libraries (ops, object, annex, readbuf, |
de1b3c3d | 2319 | writebuf, offset, len); |
3929abe9 | 2320 | |
de1b3c3d PA |
2321 | default: |
2322 | if (ops->beneath != NULL) | |
2323 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2324 | readbuf, writebuf, offset, len); | |
2325 | return -1; | |
3929abe9 | 2326 | } |
02c5aecd CF |
2327 | } |
2328 | ||
711e434b PM |
2329 | /* Provide thread local base, i.e. Thread Information Block address. |
2330 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
2331 | ||
2332 | static int | |
2333 | windows_get_tib_address (ptid_t ptid, CORE_ADDR *addr) | |
2334 | { | |
2335 | thread_info *th; | |
2336 | ||
2337 | th = thread_rec (ptid_get_tid (ptid), 0); | |
2338 | if (th == NULL) | |
2339 | return 0; | |
2340 | ||
2341 | if (addr != NULL) | |
2342 | *addr = th->thread_local_base; | |
2343 | ||
2344 | return 1; | |
2345 | } | |
2346 | ||
1e2f1c5c JB |
2347 | static ptid_t |
2348 | windows_get_ada_task_ptid (long lwp, long thread) | |
2349 | { | |
2350 | return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp); | |
2351 | } | |
2352 | ||
3ee6f623 | 2353 | static void |
dc05df57 | 2354 | init_windows_ops (void) |
3ee6f623 | 2355 | { |
dc05df57 CF |
2356 | windows_ops.to_shortname = "child"; |
2357 | windows_ops.to_longname = "Win32 child process"; | |
2358 | windows_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2359 | windows_ops.to_open = windows_open; | |
2360 | windows_ops.to_close = windows_close; | |
2361 | windows_ops.to_attach = windows_attach; | |
2362 | windows_ops.to_attach_no_wait = 1; | |
2363 | windows_ops.to_detach = windows_detach; | |
2364 | windows_ops.to_resume = windows_resume; | |
2365 | windows_ops.to_wait = windows_wait; | |
2366 | windows_ops.to_fetch_registers = windows_fetch_inferior_registers; | |
2367 | windows_ops.to_store_registers = windows_store_inferior_registers; | |
2368 | windows_ops.to_prepare_to_store = windows_prepare_to_store; | |
2369 | windows_ops.deprecated_xfer_memory = windows_xfer_memory; | |
2370 | windows_ops.to_xfer_partial = windows_xfer_partial; | |
2371 | windows_ops.to_files_info = windows_files_info; | |
2372 | windows_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2373 | windows_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2374 | windows_ops.to_terminal_init = terminal_init_inferior; | |
2375 | windows_ops.to_terminal_inferior = terminal_inferior; | |
2376 | windows_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2377 | windows_ops.to_terminal_ours = terminal_ours; | |
2378 | windows_ops.to_terminal_save_ours = terminal_save_ours; | |
2379 | windows_ops.to_terminal_info = child_terminal_info; | |
2380 | windows_ops.to_kill = windows_kill_inferior; | |
2381 | windows_ops.to_create_inferior = windows_create_inferior; | |
2382 | windows_ops.to_mourn_inferior = windows_mourn_inferior; | |
2383 | windows_ops.to_can_run = windows_can_run; | |
2384 | windows_ops.to_thread_alive = windows_thread_alive; | |
2385 | windows_ops.to_pid_to_str = windows_pid_to_str; | |
2386 | windows_ops.to_stop = windows_stop; | |
2387 | windows_ops.to_stratum = process_stratum; | |
c35b1492 PA |
2388 | windows_ops.to_has_all_memory = default_child_has_all_memory; |
2389 | windows_ops.to_has_memory = default_child_has_memory; | |
2390 | windows_ops.to_has_stack = default_child_has_stack; | |
2391 | windows_ops.to_has_registers = default_child_has_registers; | |
2392 | windows_ops.to_has_execution = default_child_has_execution; | |
dc05df57 | 2393 | windows_ops.to_pid_to_exec_file = windows_pid_to_exec_file; |
1e2f1c5c | 2394 | windows_ops.to_get_ada_task_ptid = windows_get_ada_task_ptid; |
711e434b | 2395 | windows_ops.to_get_tib_address = windows_get_tib_address; |
9bb9e8ad | 2396 | |
5aca5a82 PM |
2397 | i386_use_watchpoints (&windows_ops); |
2398 | ||
9bb9e8ad PM |
2399 | i386_dr_low.set_control = cygwin_set_dr7; |
2400 | i386_dr_low.set_addr = cygwin_set_dr; | |
2401 | i386_dr_low.reset_addr = NULL; | |
2402 | i386_dr_low.get_status = cygwin_get_dr6; | |
2403 | ||
2404 | /* i386_dr_low.debug_register_length field is set by | |
2405 | calling i386_set_debug_register_length function | |
2406 | in processor windows specific native file. */ | |
2407 | ||
dc05df57 | 2408 | windows_ops.to_magic = OPS_MAGIC; |
c719b714 | 2409 | } |
24e60978 | 2410 | |
3929abe9 | 2411 | static void |
dc05df57 | 2412 | set_windows_aliases (char *argv0) |
3929abe9 CF |
2413 | { |
2414 | add_info_alias ("dll", "sharedlibrary", 1); | |
2415 | } | |
2416 | ||
24e60978 | 2417 | void |
dc05df57 | 2418 | _initialize_windows_nat (void) |
24e60978 | 2419 | { |
fa58ee11 EZ |
2420 | struct cmd_list_element *c; |
2421 | ||
dc05df57 | 2422 | init_windows_ops (); |
1ef980b9 | 2423 | |
d0d0ab16 CV |
2424 | #ifdef __CYGWIN__ |
2425 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
2426 | #endif | |
2427 | ||
fa58ee11 | 2428 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2429 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2430 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2431 | |
2432 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2433 | ||
70992597 PM |
2434 | add_com_alias ("add-shared-symbol-files", "dll-symbols", class_alias, 1); |
2435 | ||
2436 | add_com_alias ("assf", "dll-symbols", class_alias, 1); | |
2437 | ||
10325bc5 | 2438 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2439 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2440 | Set use of shell to start subprocess."), _("\ | |
2441 | Show use of shell to start subprocess."), NULL, | |
2442 | NULL, | |
2443 | NULL, /* FIXME: i18n: */ | |
2444 | &setlist, &showlist); | |
2445 | ||
581e13c1 MS |
2446 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
2447 | &cygwin_exceptions, _("\ | |
09280ddf CF |
2448 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
2449 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2450 | NULL, | |
2451 | NULL, /* FIXME: i18n: */ | |
2452 | &setlist, &showlist); | |
10325bc5 | 2453 | #endif |
09280ddf | 2454 | |
5bf193a2 AC |
2455 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2456 | Set creation of new console when creating child process."), _("\ | |
2457 | Show creation of new console when creating child process."), NULL, | |
2458 | NULL, | |
2459 | NULL, /* FIXME: i18n: */ | |
2460 | &setlist, &showlist); | |
2461 | ||
2462 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2463 | Set creation of new group when creating child process."), _("\ | |
2464 | Show creation of new group when creating child process."), NULL, | |
2465 | NULL, | |
2466 | NULL, /* FIXME: i18n: */ | |
2467 | &setlist, &showlist); | |
2468 | ||
2469 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2470 | Set whether to display execution in child process."), _("\ | |
2471 | Show whether to display execution in child process."), NULL, | |
2472 | NULL, | |
2473 | NULL, /* FIXME: i18n: */ | |
2474 | &setlist, &showlist); | |
2475 | ||
2476 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2477 | Set whether to display kernel events in child process."), _("\ | |
2478 | Show whether to display kernel events in child process."), NULL, | |
2479 | NULL, | |
2480 | NULL, /* FIXME: i18n: */ | |
2481 | &setlist, &showlist); | |
2482 | ||
2483 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2484 | Set whether to display memory accesses in child process."), _("\ | |
2485 | Show whether to display memory accesses in child process."), NULL, | |
2486 | NULL, | |
2487 | NULL, /* FIXME: i18n: */ | |
2488 | &setlist, &showlist); | |
2489 | ||
2490 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2491 | &debug_exceptions, _("\ | |
2492 | Set whether to display kernel exceptions in child process."), _("\ | |
2493 | Show whether to display kernel exceptions in child process."), NULL, | |
2494 | NULL, | |
2495 | NULL, /* FIXME: i18n: */ | |
2496 | &setlist, &showlist); | |
1ef980b9 | 2497 | |
711e434b | 2498 | init_w32_command_list (); |
c1748f97 PM |
2499 | |
2500 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2501 | _("Display selectors infos."), |
c1748f97 | 2502 | &info_w32_cmdlist); |
dc05df57 CF |
2503 | add_target (&windows_ops); |
2504 | deprecated_init_ui_hook = set_windows_aliases; | |
24e60978 | 2505 | } |
3cee93ac | 2506 | |
fa4ba8da PM |
2507 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2508 | ||
2509 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2510 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 2511 | actually set up when windows_continue is called. */ |
9bb9e8ad | 2512 | static void |
fa4ba8da PM |
2513 | cygwin_set_dr (int i, CORE_ADDR addr) |
2514 | { | |
2515 | if (i < 0 || i > 3) | |
2516 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2517 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 2518 | dr[i] = addr; |
fa4ba8da PM |
2519 | debug_registers_changed = 1; |
2520 | debug_registers_used = 1; | |
2521 | } | |
2522 | ||
2523 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2524 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 2525 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
2526 | static void |
2527 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 2528 | { |
9bb9e8ad | 2529 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
2530 | debug_registers_changed = 1; |
2531 | debug_registers_used = 1; | |
2532 | } | |
2533 | ||
2534 | /* Get the value of the DR6 debug status register from the inferior. | |
2535 | Here we just return the value stored in dr[6] | |
2536 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 2537 | static unsigned long |
fa4ba8da PM |
2538 | cygwin_get_dr6 (void) |
2539 | { | |
9bb9e8ad | 2540 | return (unsigned long) dr[6]; |
fa4ba8da PM |
2541 | } |
2542 | ||
2dc38344 | 2543 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 2544 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 2545 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
3cee93ac | 2546 | static int |
28439f5e | 2547 | windows_thread_alive (struct target_ops *ops, ptid_t ptid) |
3cee93ac | 2548 | { |
2dc38344 PA |
2549 | int tid; |
2550 | ||
2551 | gdb_assert (ptid_get_tid (ptid) != 0); | |
2552 | tid = ptid_get_tid (ptid); | |
39f77062 | 2553 | |
581e13c1 MS |
2554 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 |
2555 | ? FALSE : TRUE; | |
3cee93ac CF |
2556 | } |
2557 | ||
2a3d5645 CF |
2558 | void |
2559 | _initialize_check_for_gdb_ini (void) | |
2560 | { | |
2561 | char *homedir; | |
2562 | if (inhibit_gdbinit) | |
2563 | return; | |
2564 | ||
2565 | homedir = getenv ("HOME"); | |
2566 | if (homedir) | |
2567 | { | |
2568 | char *p; | |
2569 | char *oldini = (char *) alloca (strlen (homedir) + | |
2570 | sizeof ("/gdb.ini")); | |
2571 | strcpy (oldini, homedir); | |
2572 | p = strchr (oldini, '\0'); | |
0ba1096a | 2573 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
2574 | *p++ = '/'; |
2575 | strcpy (p, "gdb.ini"); | |
2576 | if (access (oldini, 0) == 0) | |
2577 | { | |
2578 | int len = strlen (oldini); | |
2579 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2580 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2581 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2582 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2583 | } |
2584 | } | |
2585 | } | |
33605d39 | 2586 | |
2b008701 | 2587 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 2588 | these functions could not be found. */ |
2b008701 CF |
2589 | static BOOL WINAPI |
2590 | bad_DebugActiveProcessStop (DWORD w) | |
2591 | { | |
2592 | return FALSE; | |
2593 | } | |
2594 | static BOOL WINAPI | |
2595 | bad_DebugBreakProcess (HANDLE w) | |
2596 | { | |
2597 | return FALSE; | |
2598 | } | |
2599 | static BOOL WINAPI | |
2600 | bad_DebugSetProcessKillOnExit (BOOL w) | |
2601 | { | |
2602 | return FALSE; | |
2603 | } | |
2604 | static BOOL WINAPI | |
2605 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
2606 | { | |
2607 | return FALSE; | |
2608 | } | |
b3c613f2 CF |
2609 | |
2610 | #ifdef __USEWIDE | |
2b008701 | 2611 | static DWORD WINAPI |
b3c613f2 | 2612 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
2613 | { |
2614 | return 0; | |
2615 | } | |
d0d0ab16 CV |
2616 | #else |
2617 | static DWORD WINAPI | |
b3c613f2 | 2618 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
2619 | { |
2620 | return 0; | |
2621 | } | |
2622 | #endif | |
b3c613f2 | 2623 | |
2b008701 CF |
2624 | static BOOL WINAPI |
2625 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
2626 | { | |
2627 | return FALSE; | |
2628 | } | |
2629 | ||
418c6cb3 CF |
2630 | static BOOL WINAPI |
2631 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
2632 | { | |
2633 | return FALSE; | |
2634 | } | |
2635 | ||
cd44747c PM |
2636 | static BOOL WINAPI |
2637 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
2638 | { | |
2639 | f->nFont = 0; | |
2640 | return 1; | |
2641 | } | |
2642 | static COORD WINAPI | |
2643 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
2644 | { | |
2645 | COORD size; | |
2646 | size.X = 8; | |
2647 | size.Y = 12; | |
2648 | return size; | |
2649 | } | |
2650 | ||
2b008701 | 2651 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 2652 | of Windows. */ |
33605d39 | 2653 | void |
2b008701 | 2654 | _initialize_loadable (void) |
33605d39 | 2655 | { |
2b008701 CF |
2656 | HMODULE hm = NULL; |
2657 | ||
2658 | hm = LoadLibrary ("kernel32.dll"); | |
2659 | if (hm) | |
33605d39 | 2660 | { |
b3c613f2 | 2661 | DebugActiveProcessStop = (void *) |
2b008701 | 2662 | GetProcAddress (hm, "DebugActiveProcessStop"); |
b3c613f2 | 2663 | DebugBreakProcess = (void *) |
2b008701 | 2664 | GetProcAddress (hm, "DebugBreakProcess"); |
b3c613f2 | 2665 | DebugSetProcessKillOnExit = (void *) |
2b008701 | 2666 | GetProcAddress (hm, "DebugSetProcessKillOnExit"); |
cd44747c PM |
2667 | GetConsoleFontSize = (void *) |
2668 | GetProcAddress (hm, "GetConsoleFontSize"); | |
2669 | GetCurrentConsoleFont = (void *) | |
2670 | GetProcAddress (hm, "GetCurrentConsoleFont"); | |
2b008701 | 2671 | } |
33605d39 | 2672 | |
2b008701 | 2673 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 2674 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
2675 | if (!DebugBreakProcess) |
2676 | DebugBreakProcess = bad_DebugBreakProcess; | |
2677 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 2678 | { |
b3c613f2 CF |
2679 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
2680 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 2681 | } |
cd44747c PM |
2682 | if (!GetConsoleFontSize) |
2683 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
2684 | if (!GetCurrentConsoleFont) | |
2685 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 2686 | |
2b008701 | 2687 | /* Load optional functions used for retrieving filename information |
581e13c1 | 2688 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
2689 | hm = LoadLibrary ("psapi.dll"); |
2690 | if (hm) | |
2691 | { | |
b3c613f2 | 2692 | EnumProcessModules = (void *) |
2b008701 | 2693 | GetProcAddress (hm, "EnumProcessModules"); |
b3c613f2 | 2694 | GetModuleInformation = (void *) |
2b008701 | 2695 | GetProcAddress (hm, "GetModuleInformation"); |
b3c613f2 CF |
2696 | GetModuleFileNameEx = (void *) |
2697 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
2698 | } |
2699 | ||
b3c613f2 | 2700 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
2701 | { |
2702 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 2703 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
2704 | EnumProcessModules = bad_EnumProcessModules; |
2705 | GetModuleInformation = bad_GetModuleInformation; | |
2706 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
2707 | /* This will probably fail on Windows 9x/Me. Let the user know |
2708 | that we're missing some functionality. */ | |
2709 | warning(_("\ | |
2710 | cannot automatically find executable file or library to read symbols.\n\ | |
2711 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
2712 | } |
2713 | ||
2714 | hm = LoadLibrary ("advapi32.dll"); | |
2715 | if (hm) | |
2716 | { | |
b3c613f2 CF |
2717 | OpenProcessToken = (void *) GetProcAddress (hm, "OpenProcessToken"); |
2718 | LookupPrivilegeValueA = (void *) | |
418c6cb3 | 2719 | GetProcAddress (hm, "LookupPrivilegeValueA"); |
b3c613f2 | 2720 | AdjustTokenPrivileges = (void *) |
418c6cb3 CF |
2721 | GetProcAddress (hm, "AdjustTokenPrivileges"); |
2722 | /* Only need to set one of these since if OpenProcessToken fails nothing | |
581e13c1 MS |
2723 | else is needed. */ |
2724 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
2725 | || !AdjustTokenPrivileges) | |
b3c613f2 | 2726 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 2727 | } |
33605d39 | 2728 | } |