Commit | Line | Data |
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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
c5a57081 | 3 | Copyright (C) 1995-2012 Free Software Foundation, Inc. |
0a65a603 | 4 | |
e6433c28 | 5 | Contributed by Cygnus Solutions, A Red Hat Company. |
e88c49c3 | 6 | |
24e60978 SC |
7 | This file is part of GDB. |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
24e60978 SC |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
a9762ec7 | 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
24e60978 SC |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
24e60978 | 21 | |
dfe7f3ac | 22 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
24e60978 SC |
23 | |
24 | #include "defs.h" | |
25 | #include "frame.h" /* required by inferior.h */ | |
26 | #include "inferior.h" | |
27 | #include "target.h" | |
60250e8b | 28 | #include "exceptions.h" |
24e60978 SC |
29 | #include "gdbcore.h" |
30 | #include "command.h" | |
fa58ee11 | 31 | #include "completer.h" |
4e052eda | 32 | #include "regcache.h" |
2a3d5645 | 33 | #include "top.h" |
403d9909 CF |
34 | #include <signal.h> |
35 | #include <sys/types.h> | |
36 | #include <fcntl.h> | |
37 | #include <stdlib.h> | |
38 | #include <windows.h> | |
39 | #include <imagehlp.h> | |
2b008701 | 40 | #include <psapi.h> |
10325bc5 | 41 | #ifdef __CYGWIN__ |
b7ff339d | 42 | #include <wchar.h> |
403d9909 | 43 | #include <sys/cygwin.h> |
b7ff339d | 44 | #include <cygwin/version.h> |
10325bc5 | 45 | #endif |
a244bdca | 46 | #include <signal.h> |
cad9cd60 | 47 | |
24e60978 | 48 | #include "buildsym.h" |
0ba1096a | 49 | #include "filenames.h" |
1ef980b9 SC |
50 | #include "symfile.h" |
51 | #include "objfiles.h" | |
de1b3c3d | 52 | #include "gdb_obstack.h" |
24e60978 | 53 | #include "gdb_string.h" |
fdfa3315 | 54 | #include "gdbthread.h" |
24e60978 | 55 | #include "gdbcmd.h" |
1750a5ef | 56 | #include <sys/param.h> |
1e37c281 | 57 | #include <unistd.h> |
4646aa9d | 58 | #include "exec.h" |
3ee6f623 | 59 | #include "solist.h" |
3cb8e7f6 | 60 | #include "solib.h" |
de1b3c3d | 61 | #include "xml-support.h" |
24e60978 | 62 | |
6c7de422 MK |
63 | #include "i386-tdep.h" |
64 | #include "i387-tdep.h" | |
65 | ||
31b060a2 CF |
66 | #include "windows-tdep.h" |
67 | #include "windows-nat.h" | |
9bb9e8ad | 68 | #include "i386-nat.h" |
ecc13e53 | 69 | #include "complaints.h" |
de1b3c3d | 70 | |
418c6cb3 | 71 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
72 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
73 | #define DebugBreakProcess dyn_DebugBreakProcess | |
74 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
75 | #define EnumProcessModules dyn_EnumProcessModules | |
2b008701 | 76 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
77 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
78 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
79 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
80 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
2b008701 | 81 | |
418c6cb3 CF |
82 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, |
83 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
2b008701 CF |
84 | static BOOL WINAPI (*DebugActiveProcessStop) (DWORD); |
85 | static BOOL WINAPI (*DebugBreakProcess) (HANDLE); | |
86 | static BOOL WINAPI (*DebugSetProcessKillOnExit) (BOOL); | |
87 | static BOOL WINAPI (*EnumProcessModules) (HANDLE, HMODULE *, DWORD, | |
88 | LPDWORD); | |
2b008701 CF |
89 | static BOOL WINAPI (*GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, |
90 | DWORD); | |
418c6cb3 CF |
91 | static BOOL WINAPI (*LookupPrivilegeValueA)(LPCSTR, LPCSTR, PLUID); |
92 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
581e13c1 MS |
93 | static BOOL WINAPI (*GetCurrentConsoleFont) (HANDLE, BOOL, |
94 | CONSOLE_FONT_INFO *); | |
cd44747c | 95 | static COORD WINAPI (*GetConsoleFontSize) (HANDLE, DWORD); |
2b008701 | 96 | |
dc05df57 | 97 | static struct target_ops windows_ops; |
3ee6f623 | 98 | |
b3c613f2 CF |
99 | #undef STARTUPINFO |
100 | #undef CreateProcess | |
101 | #undef GetModuleFileNameEx | |
102 | ||
103 | #ifndef __CYGWIN__ | |
104 | # define __PMAX (MAX_PATH + 1) | |
105 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, LPSTR, DWORD); | |
106 | # define STARTUPINFO STARTUPINFOA | |
107 | # define CreateProcess CreateProcessA | |
108 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
109 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
110 | #else | |
111 | # define __PMAX PATH_MAX | |
581e13c1 | 112 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
113 | static CORE_ADDR cygwin_load_start; |
114 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
115 | # define __USEWIDE |
116 | typedef wchar_t cygwin_buf_t; | |
581e13c1 MS |
117 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, |
118 | LPWSTR, DWORD); | |
b3c613f2 CF |
119 | # define STARTUPINFO STARTUPINFOW |
120 | # define CreateProcess CreateProcessW | |
121 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
122 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 123 | #endif |
a244bdca | 124 | |
581e13c1 MS |
125 | static int have_saved_context; /* True if we've saved context from a |
126 | cygwin signal. */ | |
127 | static CONTEXT saved_context; /* Containes the saved context from a | |
128 | cygwin signal. */ | |
a244bdca | 129 | |
0714f9bf SS |
130 | /* If we're not using the old Cygwin header file set, define the |
131 | following which never should have been in the generic Win32 API | |
581e13c1 | 132 | headers in the first place since they were our own invention... */ |
0714f9bf | 133 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 134 | enum |
8e860359 CF |
135 | { |
136 | FLAG_TRACE_BIT = 0x100, | |
137 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
138 | }; | |
0714f9bf SS |
139 | #endif |
140 | ||
5851ab76 JB |
141 | #ifndef CONTEXT_EXTENDED_REGISTERS |
142 | /* This macro is only defined on ia32. It only makes sense on this target, | |
143 | so define it as zero if not already defined. */ | |
144 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
145 | #endif | |
146 | ||
fa4ba8da PM |
147 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
148 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 149 | |
41b4aadc | 150 | static uintptr_t dr[8]; |
87a45c96 CF |
151 | static int debug_registers_changed; |
152 | static int debug_registers_used; | |
16d905e2 CF |
153 | |
154 | static int windows_initialization_done; | |
6537bb24 | 155 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 156 | |
3cee93ac | 157 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 158 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
159 | #ifndef _CYGWIN_SIGNAL_STRING |
160 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
161 | #endif | |
3cee93ac | 162 | |
29fe111d | 163 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 164 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
165 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
166 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
167 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 168 | |
dc05df57 | 169 | static void windows_stop (ptid_t); |
02529b48 | 170 | static int windows_thread_alive (struct target_ops *, ptid_t); |
7d85a9c0 | 171 | static void windows_kill_inferior (struct target_ops *); |
3cee93ac | 172 | |
9bb9e8ad PM |
173 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
174 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 175 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 176 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 177 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 178 | |
7393af7c | 179 | static enum target_signal last_sig = TARGET_SIGNAL_0; |
581e13c1 | 180 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 181 | |
3cee93ac | 182 | /* Thread information structure used to track information that is |
6537bb24 | 183 | not available in gdb's thread structure. */ |
3cee93ac | 184 | typedef struct thread_info_struct |
3a4b77d8 JM |
185 | { |
186 | struct thread_info_struct *next; | |
187 | DWORD id; | |
188 | HANDLE h; | |
711e434b | 189 | CORE_ADDR thread_local_base; |
3a4b77d8 | 190 | char *name; |
6537bb24 | 191 | int suspended; |
3ade5333 | 192 | int reload_context; |
3a4b77d8 | 193 | CONTEXT context; |
1e37c281 | 194 | STACKFRAME sf; |
8e860359 CF |
195 | } |
196 | thread_info; | |
1e37c281 | 197 | |
29fe111d | 198 | static thread_info thread_head; |
24e60978 | 199 | |
581e13c1 | 200 | /* The process and thread handles for the above context. */ |
24e60978 | 201 | |
3cee93ac CF |
202 | static DEBUG_EVENT current_event; /* The current debug event from |
203 | WaitForDebugEvent */ | |
204 | static HANDLE current_process_handle; /* Currently executing process */ | |
205 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 206 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 | 207 | |
581e13c1 | 208 | /* Counts of things. */ |
24e60978 SC |
209 | static int exception_count = 0; |
210 | static int event_count = 0; | |
dfe7f3ac | 211 | static int saw_create; |
bf25528d | 212 | static int open_process_used = 0; |
24e60978 | 213 | |
581e13c1 | 214 | /* User options. */ |
24e60978 | 215 | static int new_console = 0; |
10325bc5 | 216 | #ifdef __CYGWIN__ |
09280ddf | 217 | static int cygwin_exceptions = 0; |
10325bc5 | 218 | #endif |
1e37c281 | 219 | static int new_group = 1; |
dfe7f3ac CF |
220 | static int debug_exec = 0; /* show execution */ |
221 | static int debug_events = 0; /* show events from kernel */ | |
222 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 223 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
224 | static int useshell = 0; /* use shell for subprocesses */ |
225 | ||
7e63b4e4 | 226 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 227 | in the windows exception context vector. |
24e60978 | 228 | |
3cee93ac | 229 | It also contains the bit mask needed to load the register in question. |
24e60978 | 230 | |
7e63b4e4 JB |
231 | The contents of this table can only be computed by the units |
232 | that provide CPU-specific support for Windows native debugging. | |
233 | These units should set the table by calling | |
dc05df57 | 234 | windows_set_context_register_offsets. |
7e63b4e4 | 235 | |
24e60978 SC |
236 | One day we could read a reg, we could inspect the context we |
237 | already have loaded, if it doesn't have the bit set that we need, | |
238 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 239 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
240 | write a register, first we have to ensure that the context contains |
241 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 242 | out bit. */ |
24e60978 | 243 | |
7e63b4e4 | 244 | static const int *mappings; |
d3a09475 | 245 | |
24e60978 | 246 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 247 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
248 | |
249 | struct xlate_exception | |
250 | { | |
251 | int them; | |
252 | enum target_signal us; | |
253 | }; | |
254 | ||
24e60978 SC |
255 | static const struct xlate_exception |
256 | xlate[] = | |
257 | { | |
258 | {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, | |
9cbf6c0e | 259 | {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV}, |
24e60978 SC |
260 | {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, |
261 | {DBG_CONTROL_C, TARGET_SIGNAL_INT}, | |
262 | {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, | |
7393af7c | 263 | {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE}, |
24e60978 SC |
264 | {-1, -1}}; |
265 | ||
7e63b4e4 JB |
266 | /* Set the MAPPINGS static global to OFFSETS. |
267 | See the description of MAPPINGS for more details. */ | |
268 | ||
269 | void | |
dc05df57 | 270 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
271 | { |
272 | mappings = offsets; | |
273 | } | |
274 | ||
fa4ba8da PM |
275 | static void |
276 | check (BOOL ok, const char *file, int line) | |
277 | { | |
278 | if (!ok) | |
dfe7f3ac | 279 | printf_filtered ("error return %s:%d was %lu\n", file, line, |
fa4ba8da PM |
280 | GetLastError ()); |
281 | } | |
282 | ||
6537bb24 PA |
283 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
284 | then also retrieve the context for this thread. If GET_CONTEXT is | |
285 | negative, then don't suspend the thread. */ | |
3cee93ac CF |
286 | static thread_info * |
287 | thread_rec (DWORD id, int get_context) | |
24e60978 | 288 | { |
3cee93ac CF |
289 | thread_info *th; |
290 | ||
3a4b77d8 | 291 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
292 | if (th->id == id) |
293 | { | |
6537bb24 | 294 | if (!th->suspended && get_context) |
3cee93ac | 295 | { |
8a892701 | 296 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
297 | { |
298 | if (SuspendThread (th->h) == (DWORD) -1) | |
299 | { | |
300 | DWORD err = GetLastError (); | |
301 | warning (_("SuspendThread failed. (winerr %d)"), | |
302 | (int) err); | |
303 | return NULL; | |
304 | } | |
305 | th->suspended = 1; | |
306 | } | |
3cee93ac | 307 | else if (get_context < 0) |
6537bb24 | 308 | th->suspended = -1; |
3ade5333 | 309 | th->reload_context = 1; |
3cee93ac CF |
310 | } |
311 | return th; | |
312 | } | |
313 | ||
314 | return NULL; | |
315 | } | |
316 | ||
2dc38344 | 317 | /* Add a thread to the thread list. */ |
3cee93ac | 318 | static thread_info * |
711e434b | 319 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb) |
3cee93ac CF |
320 | { |
321 | thread_info *th; | |
2dc38344 PA |
322 | DWORD id; |
323 | ||
324 | gdb_assert (ptid_get_tid (ptid) != 0); | |
325 | ||
326 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
327 | |
328 | if ((th = thread_rec (id, FALSE))) | |
329 | return th; | |
330 | ||
3929abe9 | 331 | th = XZALLOC (thread_info); |
3cee93ac CF |
332 | th->id = id; |
333 | th->h = h; | |
711e434b | 334 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
335 | th->next = thread_head.next; |
336 | thread_head.next = th; | |
2dc38344 PA |
337 | add_thread (ptid); |
338 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
339 | if (debug_registers_used) |
340 | { | |
341 | /* Only change the value of the debug registers. */ | |
342 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
343 | CHECK (GetThreadContext (th->h, &th->context)); | |
344 | th->context.Dr0 = dr[0]; | |
345 | th->context.Dr1 = dr[1]; | |
346 | th->context.Dr2 = dr[2]; | |
347 | th->context.Dr3 = dr[3]; | |
6537bb24 | 348 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
349 | th->context.Dr7 = dr[7]; |
350 | CHECK (SetThreadContext (th->h, &th->context)); | |
351 | th->context.ContextFlags = 0; | |
352 | } | |
3cee93ac | 353 | return th; |
24e60978 SC |
354 | } |
355 | ||
3cee93ac | 356 | /* Clear out any old thread list and reintialize it to a |
581e13c1 | 357 | pristine state. */ |
24e60978 | 358 | static void |
dc05df57 | 359 | windows_init_thread_list (void) |
24e60978 | 360 | { |
3cee93ac CF |
361 | thread_info *th = &thread_head; |
362 | ||
dc05df57 | 363 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
364 | init_thread_list (); |
365 | while (th->next != NULL) | |
24e60978 | 366 | { |
3cee93ac CF |
367 | thread_info *here = th->next; |
368 | th->next = here->next; | |
b8c9b27d | 369 | xfree (here); |
24e60978 | 370 | } |
059198c1 | 371 | thread_head.next = NULL; |
3cee93ac CF |
372 | } |
373 | ||
581e13c1 | 374 | /* Delete a thread from the list of threads. */ |
3cee93ac | 375 | static void |
dc05df57 | 376 | windows_delete_thread (ptid_t ptid) |
3cee93ac CF |
377 | { |
378 | thread_info *th; | |
2dc38344 PA |
379 | DWORD id; |
380 | ||
381 | gdb_assert (ptid_get_tid (ptid) != 0); | |
382 | ||
383 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
384 | |
385 | if (info_verbose) | |
2dc38344 PA |
386 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
387 | delete_thread (ptid); | |
3cee93ac CF |
388 | |
389 | for (th = &thread_head; | |
390 | th->next != NULL && th->next->id != id; | |
391 | th = th->next) | |
392 | continue; | |
393 | ||
394 | if (th->next != NULL) | |
24e60978 | 395 | { |
3cee93ac CF |
396 | thread_info *here = th->next; |
397 | th->next = here->next; | |
b8c9b27d | 398 | xfree (here); |
24e60978 SC |
399 | } |
400 | } | |
401 | ||
3cee93ac | 402 | static void |
dc05df57 | 403 | do_windows_fetch_inferior_registers (struct regcache *regcache, int r) |
24e60978 | 404 | { |
1e37c281 | 405 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
406 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
407 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 408 | long l; |
6c7de422 | 409 | |
3ade5333 | 410 | if (!current_thread) |
d6dc8049 | 411 | return; /* Windows sometimes uses a non-existent thread id in its |
581e13c1 | 412 | events. */ |
3ade5333 CF |
413 | |
414 | if (current_thread->reload_context) | |
415 | { | |
cb832706 | 416 | #ifdef __COPY_CONTEXT_SIZE |
a244bdca CF |
417 | if (have_saved_context) |
418 | { | |
581e13c1 MS |
419 | /* Lie about where the program actually is stopped since |
420 | cygwin has informed us that we should consider the signal | |
421 | to have occurred at another location which is stored in | |
422 | "saved_context. */ | |
423 | memcpy (¤t_thread->context, &saved_context, | |
424 | __COPY_CONTEXT_SIZE); | |
a244bdca CF |
425 | have_saved_context = 0; |
426 | } | |
427 | else | |
cb832706 | 428 | #endif |
a244bdca CF |
429 | { |
430 | thread_info *th = current_thread; | |
431 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
432 | GetThreadContext (th->h, &th->context); | |
2b008701 | 433 | /* Copy dr values from that thread. |
581e13c1 MS |
434 | But only if there were not modified since last stop. |
435 | PR gdb/2388 */ | |
88616312 PM |
436 | if (!debug_registers_changed) |
437 | { | |
438 | dr[0] = th->context.Dr0; | |
439 | dr[1] = th->context.Dr1; | |
440 | dr[2] = th->context.Dr2; | |
441 | dr[3] = th->context.Dr3; | |
442 | dr[6] = th->context.Dr6; | |
443 | dr[7] = th->context.Dr7; | |
444 | } | |
a244bdca | 445 | } |
3ade5333 CF |
446 | current_thread->reload_context = 0; |
447 | } | |
448 | ||
20a6ec49 | 449 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 450 | { |
8e860359 | 451 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 452 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 453 | } |
20a6ec49 | 454 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 455 | { |
8e860359 | 456 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 457 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 JM |
458 | } |
459 | else if (r >= 0) | |
56be3814 | 460 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 461 | else |
24e60978 | 462 | { |
20a6ec49 | 463 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
dc05df57 | 464 | do_windows_fetch_inferior_registers (regcache, r); |
24e60978 | 465 | } |
3cee93ac CF |
466 | } |
467 | ||
468 | static void | |
28439f5e PA |
469 | windows_fetch_inferior_registers (struct target_ops *ops, |
470 | struct regcache *regcache, int r) | |
3cee93ac | 471 | { |
2dc38344 | 472 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 473 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 474 | thread id in its events. */ |
3ade5333 | 475 | if (current_thread) |
dc05df57 | 476 | do_windows_fetch_inferior_registers (regcache, r); |
3cee93ac CF |
477 | } |
478 | ||
479 | static void | |
dc05df57 | 480 | do_windows_store_inferior_registers (const struct regcache *regcache, int r) |
3cee93ac | 481 | { |
3ade5333 | 482 | if (!current_thread) |
581e13c1 | 483 | /* Windows sometimes uses a non-existent thread id in its events. */; |
3ade5333 | 484 | else if (r >= 0) |
56be3814 | 485 | regcache_raw_collect (regcache, r, |
822c9732 | 486 | ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
487 | else |
488 | { | |
40a6adc1 | 489 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
dc05df57 | 490 | do_windows_store_inferior_registers (regcache, r); |
24e60978 SC |
491 | } |
492 | } | |
493 | ||
581e13c1 | 494 | /* Store a new register value into the current thread context. */ |
3cee93ac | 495 | static void |
28439f5e PA |
496 | windows_store_inferior_registers (struct target_ops *ops, |
497 | struct regcache *regcache, int r) | |
3cee93ac | 498 | { |
2dc38344 | 499 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 500 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 501 | thread id in its events. */ |
3ade5333 | 502 | if (current_thread) |
dc05df57 | 503 | do_windows_store_inferior_registers (regcache, r); |
3cee93ac | 504 | } |
24e60978 | 505 | |
7a9dd1b2 | 506 | /* Get the name of a given module at given base address. If base_address |
33605d39 CF |
507 | is zero return the first loaded module (which is always the name of the |
508 | executable). */ | |
3ee6f623 | 509 | static int |
d3653bf6 | 510 | get_module_name (LPVOID base_address, char *dll_name_ret) |
1e37c281 JM |
511 | { |
512 | DWORD len; | |
513 | MODULEINFO mi; | |
514 | int i; | |
8e860359 | 515 | HMODULE dh_buf[1]; |
581e13c1 MS |
516 | HMODULE *DllHandle = dh_buf; /* Set to temporary storage for |
517 | initial query. */ | |
1e37c281 | 518 | DWORD cbNeeded; |
33605d39 | 519 | #ifdef __CYGWIN__ |
b3c613f2 CF |
520 | cygwin_buf_t pathbuf[__PMAX]; /* Temporary storage prior to converting to |
521 | posix form. __PMAX is always enough | |
d0d0ab16 | 522 | as long as SO_NAME_MAX_PATH_SIZE is defined |
581e13c1 | 523 | as 512. */ |
33605d39 | 524 | #endif |
1e37c281 | 525 | |
1e37c281 | 526 | cbNeeded = 0; |
581e13c1 MS |
527 | /* Find size of buffer needed to handle list of modules loaded in |
528 | inferior. */ | |
2b008701 CF |
529 | if (!EnumProcessModules (current_process_handle, DllHandle, |
530 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1e37c281 JM |
531 | goto failed; |
532 | ||
581e13c1 | 533 | /* Allocate correct amount of space for module list. */ |
8e860359 | 534 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
535 | if (!DllHandle) |
536 | goto failed; | |
537 | ||
581e13c1 | 538 | /* Get the list of modules. */ |
2b008701 | 539 | if (!EnumProcessModules (current_process_handle, DllHandle, cbNeeded, |
33605d39 | 540 | &cbNeeded)) |
1e37c281 JM |
541 | goto failed; |
542 | ||
29fe111d | 543 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 | 544 | { |
581e13c1 | 545 | /* Get information on this module. */ |
2b008701 CF |
546 | if (!GetModuleInformation (current_process_handle, DllHandle[i], |
547 | &mi, sizeof (mi))) | |
8a3fe4f8 | 548 | error (_("Can't get module info")); |
1e37c281 | 549 | |
d3653bf6 | 550 | if (!base_address || mi.lpBaseOfDll == base_address) |
33605d39 | 551 | { |
581e13c1 | 552 | /* Try to find the name of the given module. */ |
d0d0ab16 | 553 | #ifdef __CYGWIN__ |
581e13c1 | 554 | /* Cygwin prefers that the path be in /x/y/z format. */ |
b3c613f2 CF |
555 | len = GetModuleFileNameEx (current_process_handle, |
556 | DllHandle[i], pathbuf, __PMAX); | |
d0d0ab16 CV |
557 | if (len == 0) |
558 | error (_("Error getting dll name: %lu."), GetLastError ()); | |
559 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, dll_name_ret, | |
b3c613f2 | 560 | __PMAX) < 0) |
d0d0ab16 CV |
561 | error (_("Error converting dll name to POSIX: %d."), errno); |
562 | #else | |
b3c613f2 CF |
563 | len = GetModuleFileNameEx (current_process_handle, |
564 | DllHandle[i], dll_name_ret, __PMAX); | |
33605d39 | 565 | if (len == 0) |
581e13c1 MS |
566 | error (_("Error getting dll name: %u."), |
567 | (unsigned) GetLastError ()); | |
33605d39 CF |
568 | #endif |
569 | return 1; /* success */ | |
570 | } | |
1e37c281 JM |
571 | } |
572 | ||
573 | failed: | |
574 | dll_name_ret[0] = '\0'; | |
33605d39 | 575 | return 0; /* failure */ |
1e37c281 JM |
576 | } |
577 | ||
450005e7 | 578 | /* Encapsulate the information required in a call to |
581e13c1 | 579 | symbol_file_add_args. */ |
8a892701 CF |
580 | struct safe_symbol_file_add_args |
581 | { | |
582 | char *name; | |
583 | int from_tty; | |
584 | struct section_addr_info *addrs; | |
585 | int mainline; | |
586 | int flags; | |
7c5c87c0 | 587 | struct ui_file *err, *out; |
8a892701 CF |
588 | struct objfile *ret; |
589 | }; | |
590 | ||
581e13c1 | 591 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 592 | struct lm_info |
02e423b9 | 593 | { |
d3653bf6 | 594 | LPVOID load_addr; |
3ee6f623 CF |
595 | }; |
596 | ||
597 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 598 | |
450005e7 | 599 | /* Call symbol_file_add with stderr redirected. We don't care if there |
581e13c1 | 600 | are errors. */ |
8a892701 CF |
601 | static int |
602 | safe_symbol_file_add_stub (void *argv) | |
603 | { | |
3ee6f623 | 604 | #define p ((struct safe_symbol_file_add_args *) argv) |
7eedccfa PP |
605 | const int add_flags = ((p->from_tty ? SYMFILE_VERBOSE : 0) |
606 | | (p->mainline ? SYMFILE_MAINLINE : 0)); | |
607 | p->ret = symbol_file_add (p->name, add_flags, p->addrs, p->flags); | |
8a892701 CF |
608 | return !!p->ret; |
609 | #undef p | |
610 | } | |
611 | ||
581e13c1 | 612 | /* Restore gdb's stderr after calling symbol_file_add. */ |
8a892701 | 613 | static void |
7c5c87c0 | 614 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 615 | { |
8e860359 | 616 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 617 | gdb_flush (gdb_stderr); |
7c5c87c0 | 618 | gdb_flush (gdb_stdout); |
d3ff4a77 | 619 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 620 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 621 | gdb_stderr = sp->err; |
9d3789f7 | 622 | gdb_stdout = sp->out; |
8e860359 | 623 | #undef sp |
8a892701 CF |
624 | } |
625 | ||
581e13c1 | 626 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
627 | static struct objfile * |
628 | safe_symbol_file_add (char *name, int from_tty, | |
629 | struct section_addr_info *addrs, | |
630 | int mainline, int flags) | |
8a892701 CF |
631 | { |
632 | struct safe_symbol_file_add_args p; | |
633 | struct cleanup *cleanup; | |
634 | ||
7c5c87c0 | 635 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 636 | |
7c5c87c0 CF |
637 | p.err = gdb_stderr; |
638 | p.out = gdb_stdout; | |
450005e7 | 639 | gdb_flush (gdb_stderr); |
7c5c87c0 | 640 | gdb_flush (gdb_stdout); |
d3ff4a77 | 641 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 642 | gdb_stdout = ui_file_new (); |
8a892701 CF |
643 | p.name = name; |
644 | p.from_tty = from_tty; | |
645 | p.addrs = addrs; | |
646 | p.mainline = mainline; | |
647 | p.flags = flags; | |
648 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
649 | ||
650 | do_cleanups (cleanup); | |
651 | return p.ret; | |
652 | } | |
653 | ||
de1b3c3d | 654 | static struct so_list * |
dc05df57 | 655 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 656 | { |
3ee6f623 | 657 | struct so_list *so; |
d0d0ab16 CV |
658 | char *p; |
659 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
660 | char buf[__PMAX]; |
661 | char cwd[__PMAX]; | |
3f8ad85b CF |
662 | WIN32_FIND_DATA w32_fd; |
663 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 664 | |
6badb179 CF |
665 | if (h == INVALID_HANDLE_VALUE) |
666 | strcpy (buf, name); | |
667 | else | |
3f8ad85b | 668 | { |
c914e0cc CF |
669 | FindClose (h); |
670 | strcpy (buf, name); | |
671 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
672 | { | |
673 | p = strrchr (buf, '\\'); | |
674 | if (p) | |
675 | p[1] = '\0'; | |
676 | SetCurrentDirectory (buf); | |
677 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
678 | SetCurrentDirectory (cwd); | |
679 | } | |
3f8ad85b | 680 | } |
3ee6f623 CF |
681 | if (strcasecmp (buf, "ntdll.dll") == 0) |
682 | { | |
683 | GetSystemDirectory (buf, sizeof (buf)); | |
684 | strcat (buf, "\\ntdll.dll"); | |
685 | } | |
d0d0ab16 | 686 | #else |
b3c613f2 | 687 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 688 | |
b3c613f2 | 689 | buf[0] = 0; |
d0d0ab16 CV |
690 | if (access (name, F_OK) != 0) |
691 | { | |
692 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 693 | #ifdef __USEWIDE |
d0d0ab16 CV |
694 | { |
695 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
696 | wcscat (buf, L"\\ntdll.dll"); | |
697 | } | |
b3c613f2 CF |
698 | #else |
699 | { | |
700 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
701 | strcat (buf, "\\ntdll.dll"); | |
702 | } | |
703 | #endif | |
d0d0ab16 CV |
704 | } |
705 | #endif | |
3929abe9 | 706 | so = XZALLOC (struct so_list); |
3ee6f623 CF |
707 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); |
708 | so->lm_info->load_addr = load_addr; | |
de1b3c3d | 709 | strcpy (so->so_original_name, name); |
10325bc5 PA |
710 | #ifndef __CYGWIN__ |
711 | strcpy (so->so_name, buf); | |
712 | #else | |
d0d0ab16 CV |
713 | if (buf[0]) |
714 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
715 | SO_NAME_MAX_PATH_SIZE); | |
716 | else | |
717 | { | |
60c5c021 | 718 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
719 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
720 | { | |
721 | strcpy (so->so_name, rname); | |
722 | free (rname); | |
723 | } | |
724 | else | |
725 | error (_("dll path too long")); | |
726 | } | |
de1b3c3d PA |
727 | /* Record cygwin1.dll .text start/end. */ |
728 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
729 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
730 | { | |
731 | bfd *abfd; | |
732 | asection *text = NULL; | |
733 | CORE_ADDR text_vma; | |
8e860359 | 734 | |
610dd7f9 | 735 | abfd = bfd_openr (so->so_name, "pei-i386"); |
a244bdca | 736 | |
de1b3c3d PA |
737 | if (!abfd) |
738 | return so; | |
739 | ||
740 | if (bfd_check_format (abfd, bfd_object)) | |
741 | text = bfd_get_section_by_name (abfd, ".text"); | |
742 | ||
743 | if (!text) | |
744 | { | |
745 | bfd_close (abfd); | |
746 | return so; | |
747 | } | |
748 | ||
7a9dd1b2 | 749 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 750 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
751 | file header and the section alignment. */ |
752 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
753 | load_addr + 0x1000); | |
dc05df57 | 754 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); |
de1b3c3d PA |
755 | |
756 | bfd_close (abfd); | |
757 | } | |
10325bc5 | 758 | #endif |
de1b3c3d PA |
759 | |
760 | return so; | |
8e860359 CF |
761 | } |
762 | ||
3ee6f623 | 763 | static char * |
dfe7f3ac CF |
764 | get_image_name (HANDLE h, void *address, int unicode) |
765 | { | |
d0d0ab16 | 766 | #ifdef __CYGWIN__ |
b3c613f2 | 767 | static char buf[__PMAX]; |
d0d0ab16 | 768 | #else |
b3c613f2 | 769 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 770 | #endif |
dfe7f3ac CF |
771 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
772 | char *address_ptr; | |
773 | int len = 0; | |
774 | char b[2]; | |
5732a500 | 775 | SIZE_T done; |
dfe7f3ac CF |
776 | |
777 | /* Attempt to read the name of the dll that was detected. | |
778 | This is documented to work only when actively debugging | |
581e13c1 | 779 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
780 | if (address == NULL) |
781 | return NULL; | |
782 | ||
dfe7f3ac | 783 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
784 | address isn't null. */ |
785 | if (!ReadProcessMemory (h, address, &address_ptr, | |
786 | sizeof (address_ptr), &done) | |
6f17862b | 787 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
788 | return NULL; |
789 | ||
581e13c1 | 790 | /* Find the length of the string. */ |
6f17862b CF |
791 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
792 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
793 | continue; | |
dfe7f3ac CF |
794 | |
795 | if (!unicode) | |
796 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
797 | else | |
798 | { | |
799 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
800 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
801 | &done); | |
d0d0ab16 | 802 | #ifdef __CYGWIN__ |
b3c613f2 | 803 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
804 | #else |
805 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
806 | 0, 0); | |
807 | #endif | |
dfe7f3ac CF |
808 | } |
809 | ||
810 | return buf; | |
811 | } | |
812 | ||
24e60978 SC |
813 | /* Wait for child to do something. Return pid of child, or -1 in case |
814 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 815 | static int |
0a65a603 | 816 | handle_load_dll (void *dummy) |
24e60978 | 817 | { |
3a4b77d8 | 818 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
b3c613f2 | 819 | char dll_buf[__PMAX]; |
450005e7 | 820 | char *dll_name = NULL; |
3cee93ac | 821 | |
3a4b77d8 | 822 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 823 | |
d3653bf6 | 824 | if (!get_module_name (event->lpBaseOfDll, dll_buf)) |
8e860359 | 825 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 826 | |
1e37c281 | 827 | dll_name = dll_buf; |
24e60978 | 828 | |
dfe7f3ac | 829 | if (*dll_name == '\0') |
de1b3c3d PA |
830 | dll_name = get_image_name (current_process_handle, |
831 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
832 | if (!dll_name) |
833 | return 1; | |
834 | ||
dc05df57 | 835 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 836 | solib_end = solib_end->next; |
450005e7 | 837 | |
a74ce742 PM |
838 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
839 | host_address_to_string (solib_end->lm_info->load_addr))); | |
7488902c | 840 | |
450005e7 CF |
841 | return 1; |
842 | } | |
843 | ||
3ee6f623 | 844 | static void |
dc05df57 | 845 | windows_free_so (struct so_list *so) |
3ee6f623 | 846 | { |
3ee6f623 CF |
847 | if (so->lm_info) |
848 | xfree (so->lm_info); | |
de1b3c3d | 849 | xfree (so); |
3cb8e7f6 CF |
850 | } |
851 | ||
d3ff4a77 | 852 | static int |
0a65a603 | 853 | handle_unload_dll (void *dummy) |
d3ff4a77 | 854 | { |
d3653bf6 | 855 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 856 | struct so_list *so; |
d3ff4a77 CF |
857 | |
858 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 859 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 860 | { |
3ee6f623 | 861 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
862 | so->next = sodel->next; |
863 | if (!so->next) | |
864 | solib_end = so; | |
7488902c PM |
865 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
866 | ||
dc05df57 | 867 | windows_free_so (sodel); |
3929abe9 | 868 | solib_add (NULL, 0, NULL, auto_solib_add); |
d3ff4a77 CF |
869 | return 1; |
870 | } | |
3929abe9 | 871 | |
ecc13e53 JB |
872 | /* We did not find any DLL that was previously loaded at this address, |
873 | so register a complaint. We do not report an error, because we have | |
874 | observed that this may be happening under some circumstances. For | |
875 | instance, running 32bit applications on x64 Windows causes us to receive | |
876 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
877 | events are apparently caused by the WOW layer, the interface between | |
878 | 32bit and 64bit worlds). */ | |
879 | complaint (&symfile_complaints, _("dll starting at %s not found."), | |
880 | host_address_to_string (lpBaseOfDll)); | |
d3ff4a77 CF |
881 | |
882 | return 0; | |
883 | } | |
884 | ||
581e13c1 | 885 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 886 | static void |
dc05df57 | 887 | windows_clear_solib (void) |
450005e7 | 888 | { |
450005e7 CF |
889 | solib_start.next = NULL; |
890 | solib_end = &solib_start; | |
450005e7 | 891 | } |
295732ea | 892 | |
581e13c1 | 893 | /* Load DLL symbol info. */ |
450005e7 | 894 | void |
7470a420 | 895 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 896 | { |
8e860359 | 897 | int n; |
450005e7 | 898 | dont_repeat (); |
8e860359 | 899 | |
450005e7 | 900 | if (args == NULL) |
8a3fe4f8 | 901 | error (_("dll-symbols requires a file name")); |
450005e7 | 902 | |
8e860359 CF |
903 | n = strlen (args); |
904 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
905 | { | |
906 | char *newargs = (char *) alloca (n + 4 + 1); | |
907 | strcpy (newargs, args); | |
908 | strcat (newargs, ".dll"); | |
909 | args = newargs; | |
910 | } | |
911 | ||
7470a420 | 912 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 913 | } |
450005e7 | 914 | |
3cee93ac CF |
915 | /* Handle DEBUG_STRING output from child process. |
916 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 917 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
918 | static int |
919 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
920 | { | |
a244bdca CF |
921 | char *s = NULL; |
922 | int retval = 0; | |
3cee93ac CF |
923 | |
924 | if (!target_read_string | |
2c647436 PM |
925 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
926 | &s, 1024, 0) | |
3cee93ac | 927 | || !s || !*s) |
a244bdca | 928 | /* nothing to do */; |
581e13c1 MS |
929 | else if (strncmp (s, _CYGWIN_SIGNAL_STRING, |
930 | sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0) | |
3cee93ac | 931 | { |
10325bc5 | 932 | #ifdef __CYGWIN__ |
d3a09475 | 933 | if (strncmp (s, "cYg", 3) != 0) |
10325bc5 | 934 | #endif |
8a3fe4f8 | 935 | warning (("%s"), s); |
3cee93ac | 936 | } |
cb832706 | 937 | #ifdef __COPY_CONTEXT_SIZE |
d3a09475 | 938 | else |
3cee93ac | 939 | { |
581e13c1 MS |
940 | /* Got a cygwin signal marker. A cygwin signal is followed by |
941 | the signal number itself and then optionally followed by the | |
942 | thread id and address to saved context within the DLL. If | |
943 | these are supplied, then the given thread is assumed to have | |
944 | issued the signal and the context from the thread is assumed | |
945 | to be stored at the given address in the inferior. Tell gdb | |
946 | to treat this like a real signal. */ | |
3cee93ac | 947 | char *p; |
3929abe9 | 948 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
a244bdca | 949 | int gotasig = target_signal_from_host (sig); |
0714f9bf SS |
950 | ourstatus->value.sig = gotasig; |
951 | if (gotasig) | |
a244bdca CF |
952 | { |
953 | LPCVOID x; | |
954 | DWORD n; | |
955 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
956 | retval = strtoul (p, &p, 0); | |
957 | if (!retval) | |
958 | retval = main_thread_id; | |
959 | else if ((x = (LPCVOID) strtoul (p, &p, 0)) | |
960 | && ReadProcessMemory (current_process_handle, x, | |
581e13c1 MS |
961 | &saved_context, |
962 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
963 | && n == __COPY_CONTEXT_SIZE) |
964 | have_saved_context = 1; | |
965 | current_event.dwThreadId = retval; | |
966 | } | |
3cee93ac | 967 | } |
cb832706 | 968 | #endif |
3cee93ac | 969 | |
a244bdca CF |
970 | if (s) |
971 | xfree (s); | |
972 | return retval; | |
3cee93ac | 973 | } |
24e60978 | 974 | |
c1748f97 PM |
975 | static int |
976 | display_selector (HANDLE thread, DWORD sel) | |
977 | { | |
978 | LDT_ENTRY info; | |
979 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
980 | { | |
981 | int base, limit; | |
982 | printf_filtered ("0x%03lx: ", sel); | |
983 | if (!info.HighWord.Bits.Pres) | |
baa93fa6 CF |
984 | { |
985 | puts_filtered ("Segment not present\n"); | |
986 | return 0; | |
987 | } | |
c1748f97 PM |
988 | base = (info.HighWord.Bits.BaseHi << 24) + |
989 | (info.HighWord.Bits.BaseMid << 16) | |
990 | + info.BaseLow; | |
991 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
992 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 993 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
994 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
995 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 996 | puts_filtered(" 32-bit "); |
c1748f97 | 997 | else |
baa93fa6 | 998 | puts_filtered(" 16-bit "); |
c1748f97 PM |
999 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1000 | { | |
1001 | case 0: | |
baa93fa6 CF |
1002 | puts_filtered ("Data (Read-Only, Exp-up"); |
1003 | break; | |
c1748f97 | 1004 | case 1: |
baa93fa6 CF |
1005 | puts_filtered ("Data (Read/Write, Exp-up"); |
1006 | break; | |
c1748f97 | 1007 | case 2: |
baa93fa6 CF |
1008 | puts_filtered ("Unused segment ("); |
1009 | break; | |
c1748f97 | 1010 | case 3: |
baa93fa6 CF |
1011 | puts_filtered ("Data (Read/Write, Exp-down"); |
1012 | break; | |
c1748f97 | 1013 | case 4: |
baa93fa6 CF |
1014 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1015 | break; | |
c1748f97 | 1016 | case 5: |
baa93fa6 | 1017 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1018 | break; |
1019 | case 6: | |
baa93fa6 | 1020 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1021 | break; |
1022 | case 7: | |
baa93fa6 | 1023 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1024 | break; |
1025 | default: | |
1026 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
1027 | } | |
1028 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1029 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1030 | puts_filtered (")\n"); |
1031 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1032 | puts_filtered("System selector "); | |
1033 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
1034 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 1035 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1036 | else |
1037 | puts_filtered ("Byte granular.\n"); | |
1038 | return 1; | |
1039 | } | |
1040 | else | |
1041 | { | |
5572ce1f PM |
1042 | DWORD err = GetLastError (); |
1043 | if (err == ERROR_NOT_SUPPORTED) | |
1044 | printf_filtered ("Function not supported\n"); | |
1045 | else | |
1046 | printf_filtered ("Invalid selector 0x%lx.\n",sel); | |
c1748f97 PM |
1047 | return 0; |
1048 | } | |
1049 | } | |
1050 | ||
1051 | static void | |
1052 | display_selectors (char * args, int from_tty) | |
1053 | { | |
1054 | if (!current_thread) | |
1055 | { | |
1056 | puts_filtered ("Impossible to display selectors now.\n"); | |
1057 | return; | |
1058 | } | |
1059 | if (!args) | |
1060 | { | |
1061 | ||
1062 | puts_filtered ("Selector $cs\n"); | |
1063 | display_selector (current_thread->h, | |
baa93fa6 | 1064 | current_thread->context.SegCs); |
c1748f97 PM |
1065 | puts_filtered ("Selector $ds\n"); |
1066 | display_selector (current_thread->h, | |
baa93fa6 | 1067 | current_thread->context.SegDs); |
c1748f97 PM |
1068 | puts_filtered ("Selector $es\n"); |
1069 | display_selector (current_thread->h, | |
baa93fa6 | 1070 | current_thread->context.SegEs); |
c1748f97 PM |
1071 | puts_filtered ("Selector $ss\n"); |
1072 | display_selector (current_thread->h, | |
baa93fa6 | 1073 | current_thread->context.SegSs); |
c1748f97 PM |
1074 | puts_filtered ("Selector $fs\n"); |
1075 | display_selector (current_thread->h, | |
1076 | current_thread->context.SegFs); | |
1077 | puts_filtered ("Selector $gs\n"); | |
1078 | display_selector (current_thread->h, | |
baa93fa6 | 1079 | current_thread->context.SegGs); |
c1748f97 PM |
1080 | } |
1081 | else | |
1082 | { | |
1083 | int sel; | |
1084 | sel = parse_and_eval_long (args); | |
1085 | printf_filtered ("Selector \"%s\"\n",args); | |
1086 | display_selector (current_thread->h, sel); | |
1087 | } | |
1088 | } | |
1089 | ||
7393af7c | 1090 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1091 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1092 | host_address_to_string (\ | |
1093 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1094 | |
36339ecd | 1095 | static int |
450005e7 | 1096 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1097 | { |
3cee93ac | 1098 | thread_info *th; |
29fe111d | 1099 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 1100 | |
29fe111d | 1101 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1102 | |
581e13c1 | 1103 | /* Record the context of the current thread. */ |
3cee93ac | 1104 | th = thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1105 | |
29fe111d | 1106 | switch (code) |
24e60978 | 1107 | { |
1ef980b9 | 1108 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c PM |
1109 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
1110 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
10325bc5 | 1111 | #ifdef __CYGWIN__ |
8da8e0b3 | 1112 | { |
581e13c1 MS |
1113 | /* See if the access violation happened within the cygwin DLL |
1114 | itself. Cygwin uses a kind of exception handling to deal | |
1115 | with passed-in invalid addresses. gdb should not treat | |
1116 | these as real SEGVs since they will be silently handled by | |
1117 | cygwin. A real SEGV will (theoretically) be caught by | |
1118 | cygwin later in the process and will be sent as a | |
1119 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1120 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1121 | const char *fn; |
581e13c1 MS |
1122 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) |
1123 | current_event.u.Exception.ExceptionRecord.ExceptionAddress; | |
1124 | ||
1125 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1126 | && addr < cygwin_load_end)) | |
a244bdca | 1127 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
581e13c1 MS |
1128 | && strncmp (fn, "KERNEL32!IsBad", |
1129 | strlen ("KERNEL32!IsBad")) == 0)) | |
8da8e0b3 CF |
1130 | return 0; |
1131 | } | |
10325bc5 | 1132 | #endif |
7393af7c PM |
1133 | break; |
1134 | case STATUS_STACK_OVERFLOW: | |
1135 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
1ef980b9 | 1136 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; |
7393af7c PM |
1137 | break; |
1138 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1139 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
1140 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1141 | break; | |
1142 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1143 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
1144 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1145 | break; | |
1146 | case STATUS_FLOAT_INEXACT_RESULT: | |
1147 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
1148 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1149 | break; | |
1150 | case STATUS_FLOAT_INVALID_OPERATION: | |
1151 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
1152 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1153 | break; | |
1154 | case STATUS_FLOAT_OVERFLOW: | |
1155 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
1156 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1157 | break; | |
1158 | case STATUS_FLOAT_STACK_CHECK: | |
1159 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
1160 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 | 1161 | break; |
3b7c8b74 | 1162 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c PM |
1163 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
1164 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1165 | break; | |
3b7c8b74 | 1166 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c PM |
1167 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
1168 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1169 | break; | |
3b7c8b74 | 1170 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1171 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
3b7c8b74 | 1172 | ourstatus->value.sig = TARGET_SIGNAL_FPE; |
3b7c8b74 | 1173 | break; |
7393af7c PM |
1174 | case STATUS_INTEGER_OVERFLOW: |
1175 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
1176 | ourstatus->value.sig = TARGET_SIGNAL_FPE; | |
1ef980b9 SC |
1177 | break; |
1178 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1179 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
1ef980b9 SC |
1180 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1181 | break; | |
1182 | case DBG_CONTROL_C: | |
7393af7c | 1183 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
1ef980b9 | 1184 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
5b421780 PM |
1185 | break; |
1186 | case DBG_CONTROL_BREAK: | |
7393af7c | 1187 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
5b421780 | 1188 | ourstatus->value.sig = TARGET_SIGNAL_INT; |
1ef980b9 SC |
1189 | break; |
1190 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1191 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
1ef980b9 SC |
1192 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; |
1193 | break; | |
8227c82d | 1194 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c PM |
1195 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
1196 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1197 | break; | |
1198 | case EXCEPTION_PRIV_INSTRUCTION: | |
1199 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
1200 | ourstatus->value.sig = TARGET_SIGNAL_ILL; | |
1201 | break; | |
1202 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1203 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
8227c82d CF |
1204 | ourstatus->value.sig = TARGET_SIGNAL_ILL; |
1205 | break; | |
1ef980b9 | 1206 | default: |
581e13c1 | 1207 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1208 | if (current_event.u.Exception.dwFirstChance) |
a244bdca | 1209 | return -1; |
a74ce742 PM |
1210 | printf_unfiltered ("gdb: unknown target exception 0x%08lx at %s\n", |
1211 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1212 | host_address_to_string ( | |
1213 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
24e60978 | 1214 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; |
1ef980b9 | 1215 | break; |
24e60978 | 1216 | } |
24e60978 | 1217 | exception_count++; |
7393af7c | 1218 | last_sig = ourstatus->value.sig; |
36339ecd | 1219 | return 1; |
24e60978 SC |
1220 | } |
1221 | ||
3cee93ac | 1222 | /* Resume all artificially suspended threads if we are continuing |
581e13c1 | 1223 | execution. */ |
3cee93ac | 1224 | static BOOL |
dc05df57 | 1225 | windows_continue (DWORD continue_status, int id) |
3cee93ac CF |
1226 | { |
1227 | int i; | |
1228 | thread_info *th; | |
1229 | BOOL res; | |
1230 | ||
1c1238a5 | 1231 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%lx, %s);\n", |
7393af7c | 1232 | current_event.dwProcessId, current_event.dwThreadId, |
dfe7f3ac | 1233 | continue_status == DBG_CONTINUE ? |
7393af7c | 1234 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1235 | |
1236 | for (th = &thread_head; (th = th->next) != NULL;) | |
1237 | if ((id == -1 || id == (int) th->id) | |
1238 | && th->suspended) | |
1239 | { | |
1240 | if (debug_registers_changed) | |
1241 | { | |
1242 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1243 | th->context.Dr0 = dr[0]; | |
1244 | th->context.Dr1 = dr[1]; | |
1245 | th->context.Dr2 = dr[2]; | |
1246 | th->context.Dr3 = dr[3]; | |
1247 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1248 | th->context.Dr7 = dr[7]; | |
1249 | } | |
1250 | if (th->context.ContextFlags) | |
1251 | { | |
1252 | CHECK (SetThreadContext (th->h, &th->context)); | |
1253 | th->context.ContextFlags = 0; | |
1254 | } | |
1255 | if (th->suspended > 0) | |
1256 | (void) ResumeThread (th->h); | |
1257 | th->suspended = 0; | |
1258 | } | |
1259 | ||
0714f9bf SS |
1260 | res = ContinueDebugEvent (current_event.dwProcessId, |
1261 | current_event.dwThreadId, | |
1262 | continue_status); | |
3cee93ac | 1263 | |
fa4ba8da | 1264 | debug_registers_changed = 0; |
3cee93ac CF |
1265 | return res; |
1266 | } | |
1267 | ||
d6dc8049 CF |
1268 | /* Called in pathological case where Windows fails to send a |
1269 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1270 | static DWORD |
5439edaa | 1271 | fake_create_process (void) |
3ade5333 CF |
1272 | { |
1273 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1274 | current_event.dwProcessId); | |
bf25528d CF |
1275 | if (current_process_handle != NULL) |
1276 | open_process_used = 1; | |
1277 | else | |
1278 | { | |
b37520b6 | 1279 | error (_("OpenProcess call failed, GetLastError = %lud"), |
bf25528d CF |
1280 | GetLastError ()); |
1281 | /* We can not debug anything in that case. */ | |
1282 | } | |
3ade5333 | 1283 | main_thread_id = current_event.dwThreadId; |
711e434b PM |
1284 | current_thread = windows_add_thread ( |
1285 | ptid_build (current_event.dwProcessId, 0, | |
1286 | current_event.dwThreadId), | |
1287 | current_event.u.CreateThread.hThread, | |
1288 | current_event.u.CreateThread.lpThreadLocalBase); | |
3ade5333 CF |
1289 | return main_thread_id; |
1290 | } | |
1291 | ||
a244bdca | 1292 | static void |
28439f5e PA |
1293 | windows_resume (struct target_ops *ops, |
1294 | ptid_t ptid, int step, enum target_signal sig) | |
a244bdca CF |
1295 | { |
1296 | thread_info *th; | |
1297 | DWORD continue_status = DBG_CONTINUE; | |
1298 | ||
2dc38344 PA |
1299 | /* A specific PTID means `step only this thread id'. */ |
1300 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1301 | ||
1302 | /* If we're continuing all threads, it's the current inferior that | |
1303 | should be handled specially. */ | |
1304 | if (resume_all) | |
1305 | ptid = inferior_ptid; | |
a244bdca CF |
1306 | |
1307 | if (sig != TARGET_SIGNAL_0) | |
1308 | { | |
1309 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1310 | { | |
1311 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1312 | } | |
1313 | else if (sig == last_sig) | |
1314 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1315 | else | |
1316 | #if 0 | |
1317 | /* This code does not seem to work, because | |
1318 | the kernel does probably not consider changes in the ExceptionRecord | |
1319 | structure when passing the exception to the inferior. | |
1320 | Note that this seems possible in the exception handler itself. */ | |
1321 | { | |
1322 | int i; | |
1323 | for (i = 0; xlate[i].them != -1; i++) | |
1324 | if (xlate[i].us == sig) | |
1325 | { | |
581e13c1 MS |
1326 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
1327 | = xlate[i].them; | |
a244bdca CF |
1328 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1329 | break; | |
1330 | } | |
1331 | if (continue_status == DBG_CONTINUE) | |
1332 | { | |
1333 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1334 | } | |
1335 | } | |
1336 | #endif | |
1337 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", | |
1338 | last_sig)); | |
1339 | } | |
1340 | ||
1341 | last_sig = TARGET_SIGNAL_0; | |
1342 | ||
dc05df57 | 1343 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1344 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca | 1345 | |
581e13c1 | 1346 | /* Get context for currently selected thread. */ |
2dc38344 | 1347 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1348 | if (th) |
1349 | { | |
1350 | if (step) | |
1351 | { | |
581e13c1 | 1352 | /* Single step by setting t bit. */ |
a97b0ac8 UW |
1353 | struct regcache *regcache = get_current_regcache (); |
1354 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1355 | windows_fetch_inferior_registers (ops, regcache, | |
1356 | gdbarch_ps_regnum (gdbarch)); | |
a244bdca CF |
1357 | th->context.EFlags |= FLAG_TRACE_BIT; |
1358 | } | |
1359 | ||
1360 | if (th->context.ContextFlags) | |
1361 | { | |
1362 | if (debug_registers_changed) | |
1363 | { | |
1364 | th->context.Dr0 = dr[0]; | |
1365 | th->context.Dr1 = dr[1]; | |
1366 | th->context.Dr2 = dr[2]; | |
1367 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1368 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1369 | th->context.Dr7 = dr[7]; |
1370 | } | |
1371 | CHECK (SetThreadContext (th->h, &th->context)); | |
1372 | th->context.ContextFlags = 0; | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1377 | Otherwise complain. */ |
a244bdca | 1378 | |
2dc38344 | 1379 | if (resume_all) |
dc05df57 | 1380 | windows_continue (continue_status, -1); |
2dc38344 | 1381 | else |
dc05df57 | 1382 | windows_continue (continue_status, ptid_get_tid (ptid)); |
a244bdca CF |
1383 | } |
1384 | ||
695de547 CF |
1385 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1386 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1387 | Note that this function is not available prior to Windows XP. In this case | |
1388 | we emit a warning. */ | |
1389 | BOOL WINAPI | |
1390 | ctrl_c_handler (DWORD event_type) | |
1391 | { | |
1392 | const int attach_flag = current_inferior ()->attach_flag; | |
1393 | ||
bb0613a5 PM |
1394 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1395 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1396 | return FALSE; |
1397 | ||
1398 | /* If the inferior and the debugger share the same console, do nothing as | |
1399 | the inferior has also received the Ctrl-C event. */ | |
1400 | if (!new_console && !attach_flag) | |
1401 | return TRUE; | |
1402 | ||
1403 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1404 | warning (_("Could not interrupt program. " |
1405 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1406 | |
1407 | /* Return true to tell that Ctrl-C has been handled. */ | |
1408 | return TRUE; | |
1409 | } | |
1410 | ||
8a892701 | 1411 | /* Get the next event from the child. Return 1 if the event requires |
695de547 | 1412 | handling by WFI (or whatever). */ |
1e37c281 | 1413 | static int |
28439f5e PA |
1414 | get_windows_debug_event (struct target_ops *ops, |
1415 | int pid, struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1416 | { |
1417 | BOOL debug_event; | |
8a892701 | 1418 | DWORD continue_status, event_code; |
87a45c96 | 1419 | thread_info *th; |
8a892701 | 1420 | static thread_info dummy_thread_info; |
450005e7 | 1421 | int retval = 0; |
1e37c281 | 1422 | |
7393af7c | 1423 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 | 1424 | |
8a892701 | 1425 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1426 | goto out; |
1e37c281 JM |
1427 | |
1428 | event_count++; | |
1429 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1430 | |
8a892701 | 1431 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1432 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1433 | th = NULL; |
a244bdca | 1434 | have_saved_context = 0; |
8a892701 CF |
1435 | |
1436 | switch (event_code) | |
1e37c281 JM |
1437 | { |
1438 | case CREATE_THREAD_DEBUG_EVENT: | |
1439 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
8a892701 CF |
1440 | (unsigned) current_event.dwProcessId, |
1441 | (unsigned) current_event.dwThreadId, | |
1442 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1443 | if (saw_create != 1) |
3ade5333 | 1444 | { |
181e7f93 PA |
1445 | struct inferior *inf; |
1446 | inf = find_inferior_pid (current_event.dwProcessId); | |
1447 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1448 | { |
d6dc8049 CF |
1449 | /* Kludge around a Windows bug where first event is a create |
1450 | thread event. Caused when attached process does not have | |
581e13c1 | 1451 | a main thread. */ |
3a3e9ee3 | 1452 | retval = fake_create_process (); |
181e7f93 PA |
1453 | if (retval) |
1454 | saw_create++; | |
3ade5333 CF |
1455 | } |
1456 | break; | |
1457 | } | |
581e13c1 | 1458 | /* Record the existence of this thread. */ |
450005e7 | 1459 | retval = current_event.dwThreadId; |
dc05df57 | 1460 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1461 | current_event.dwThreadId), |
711e434b PM |
1462 | current_event.u.CreateThread.hThread, |
1463 | current_event.u.CreateThread.lpThreadLocalBase); | |
1464 | ||
1e37c281 JM |
1465 | break; |
1466 | ||
1467 | case EXIT_THREAD_DEBUG_EVENT: | |
1c1238a5 | 1468 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1469 | (unsigned) current_event.dwProcessId, |
1470 | (unsigned) current_event.dwThreadId, | |
1471 | "EXIT_THREAD_DEBUG_EVENT")); | |
b3c613f2 | 1472 | |
87a45c96 CF |
1473 | if (current_event.dwThreadId != main_thread_id) |
1474 | { | |
dc05df57 | 1475 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1476 | current_event.dwThreadId)); |
87a45c96 CF |
1477 | th = &dummy_thread_info; |
1478 | } | |
1e37c281 JM |
1479 | break; |
1480 | ||
1481 | case CREATE_PROCESS_DEBUG_EVENT: | |
1c1238a5 | 1482 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1483 | (unsigned) current_event.dwProcessId, |
1484 | (unsigned) current_event.dwThreadId, | |
1485 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1486 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1487 | if (++saw_create != 1) |
bf25528d | 1488 | break; |
1e37c281 | 1489 | |
dfe7f3ac | 1490 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1491 | if (main_thread_id) |
695de547 CF |
1492 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
1493 | main_thread_id)); | |
9d3789f7 | 1494 | main_thread_id = current_event.dwThreadId; |
581e13c1 | 1495 | /* Add the main thread. */ |
dc05df57 | 1496 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
695de547 | 1497 | current_event.dwThreadId), |
711e434b PM |
1498 | current_event.u.CreateProcessInfo.hThread, |
1499 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
3a3e9ee3 | 1500 | retval = current_event.dwThreadId; |
1e37c281 JM |
1501 | break; |
1502 | ||
1503 | case EXIT_PROCESS_DEBUG_EVENT: | |
1c1238a5 | 1504 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1505 | (unsigned) current_event.dwProcessId, |
1506 | (unsigned) current_event.dwThreadId, | |
1507 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1508 | if (!windows_initialization_done) |
1509 | { | |
1510 | target_terminal_ours (); | |
1511 | target_mourn_inferior (); | |
1512 | error (_("During startup program exited with code 0x%x."), | |
1513 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1514 | } | |
1515 | else if (saw_create == 1) | |
1516 | { | |
1517 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1518 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1519 | retval = main_thread_id; | |
1520 | } | |
8a892701 | 1521 | break; |
1e37c281 JM |
1522 | |
1523 | case LOAD_DLL_DEBUG_EVENT: | |
1c1238a5 | 1524 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1525 | (unsigned) current_event.dwProcessId, |
1526 | (unsigned) current_event.dwThreadId, | |
1527 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1528 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1529 | if (saw_create != 1) |
1530 | break; | |
8a892701 | 1531 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1532 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1533 | ourstatus->value.integer = 0; | |
9d3789f7 | 1534 | retval = main_thread_id; |
1e37c281 JM |
1535 | break; |
1536 | ||
1537 | case UNLOAD_DLL_DEBUG_EVENT: | |
1c1238a5 | 1538 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1539 | (unsigned) current_event.dwProcessId, |
1540 | (unsigned) current_event.dwThreadId, | |
1541 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1542 | if (saw_create != 1) |
1543 | break; | |
d3ff4a77 | 1544 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1545 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1546 | ourstatus->value.integer = 0; | |
1547 | retval = main_thread_id; | |
d3ff4a77 | 1548 | break; |
1e37c281 JM |
1549 | |
1550 | case EXCEPTION_DEBUG_EVENT: | |
1c1238a5 | 1551 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1552 | (unsigned) current_event.dwProcessId, |
1553 | (unsigned) current_event.dwThreadId, | |
1554 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1555 | if (saw_create != 1) |
1556 | break; | |
a244bdca CF |
1557 | switch (handle_exception (ourstatus)) |
1558 | { | |
1559 | case 0: | |
1560 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1561 | break; | |
1562 | case 1: | |
1563 | retval = current_event.dwThreadId; | |
1564 | break; | |
1565 | case -1: | |
1566 | last_sig = 1; | |
1567 | continue_status = -1; | |
1568 | break; | |
1569 | } | |
1e37c281 JM |
1570 | break; |
1571 | ||
581e13c1 | 1572 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
1c1238a5 | 1573 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", |
8a892701 CF |
1574 | (unsigned) current_event.dwProcessId, |
1575 | (unsigned) current_event.dwThreadId, | |
1576 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1577 | if (saw_create != 1) |
1578 | break; | |
a244bdca | 1579 | retval = handle_output_debug_string (ourstatus); |
1e37c281 | 1580 | break; |
9d3789f7 | 1581 | |
1e37c281 | 1582 | default: |
dfe7f3ac CF |
1583 | if (saw_create != 1) |
1584 | break; | |
29fe111d CF |
1585 | printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n", |
1586 | (DWORD) current_event.dwProcessId, | |
1587 | (DWORD) current_event.dwThreadId); | |
1588 | printf_unfiltered (" unknown event code %ld\n", | |
1e37c281 JM |
1589 | current_event.dwDebugEventCode); |
1590 | break; | |
1591 | } | |
1592 | ||
dfe7f3ac | 1593 | if (!retval || saw_create != 1) |
a244bdca CF |
1594 | { |
1595 | if (continue_status == -1) | |
02529b48 | 1596 | windows_resume (ops, minus_one_ptid, 0, 1); |
a244bdca | 1597 | else |
dc05df57 | 1598 | CHECK (windows_continue (continue_status, -1)); |
a244bdca | 1599 | } |
450005e7 | 1600 | else |
9d3789f7 | 1601 | { |
2dc38344 PA |
1602 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
1603 | retval); | |
3ade5333 | 1604 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1605 | } |
1e37c281 JM |
1606 | |
1607 | out: | |
450005e7 | 1608 | return retval; |
1e37c281 JM |
1609 | } |
1610 | ||
2dc38344 | 1611 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1612 | static ptid_t |
117de6a9 | 1613 | windows_wait (struct target_ops *ops, |
47608cb1 | 1614 | ptid_t ptid, struct target_waitstatus *ourstatus, int options) |
24e60978 | 1615 | { |
2dc38344 | 1616 | int pid = -1; |
39f77062 | 1617 | |
c44537cf CV |
1618 | target_terminal_ours (); |
1619 | ||
24e60978 SC |
1620 | /* We loop when we get a non-standard exception rather than return |
1621 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1622 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1623 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1624 | isn't necessarily what you think it is. */ |
24e60978 SC |
1625 | |
1626 | while (1) | |
450005e7 | 1627 | { |
c57918b2 | 1628 | int retval; |
2b008701 | 1629 | |
695de547 CF |
1630 | /* If the user presses Ctrl-c while the debugger is waiting |
1631 | for an event, he expects the debugger to interrupt his program | |
1632 | and to get the prompt back. There are two possible situations: | |
1633 | ||
1634 | - The debugger and the program do not share the console, in | |
1635 | which case the Ctrl-c event only reached the debugger. | |
1636 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1637 | the inferior. Note that this case is working starting with |
1638 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1639 | inferior console. |
1640 | ||
1641 | - The debugger and the program share the same console, in which | |
1642 | case both debugger and inferior will receive the Ctrl-c event. | |
1643 | In that case the ctrl_c handler will ignore the event, as the | |
1644 | Ctrl-c event generated inside the inferior will trigger the | |
1645 | expected debug event. | |
1646 | ||
1647 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1648 | signal first and the delay until GDB receives that signal | |
1649 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1650 | after we have unblocked the CTRL+C handler. This would | |
1651 | lead to the debugger stopping prematurely while handling | |
1652 | the new-thread event that comes with the handling of the SIGINT | |
1653 | inside the inferior, and then stop again immediately when | |
1654 | the user tries to resume the execution in the inferior. | |
1655 | This is a classic race that we should try to fix one day. */ | |
1656 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
28439f5e | 1657 | retval = get_windows_debug_event (ops, pid, ourstatus); |
695de547 | 1658 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1659 | |
450005e7 | 1660 | if (retval) |
2dc38344 | 1661 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1662 | else |
1663 | { | |
1664 | int detach = 0; | |
3cee93ac | 1665 | |
98bbd631 AC |
1666 | if (deprecated_ui_loop_hook != NULL) |
1667 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1668 | |
450005e7 | 1669 | if (detach) |
7d85a9c0 | 1670 | windows_kill_inferior (ops); |
450005e7 CF |
1671 | } |
1672 | } | |
24e60978 SC |
1673 | } |
1674 | ||
9d3789f7 | 1675 | static void |
dc05df57 | 1676 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 CF |
1677 | { |
1678 | extern int stop_after_trap; | |
fa4ba8da | 1679 | int i; |
d6b48e9c | 1680 | struct inferior *inf; |
2020b7ab | 1681 | struct thread_info *tp; |
9d3789f7 | 1682 | |
7393af7c | 1683 | last_sig = TARGET_SIGNAL_0; |
9d3789f7 CF |
1684 | event_count = 0; |
1685 | exception_count = 0; | |
bf25528d | 1686 | open_process_used = 0; |
fa4ba8da | 1687 | debug_registers_changed = 0; |
dfe7f3ac | 1688 | debug_registers_used = 0; |
fa4ba8da PM |
1689 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1690 | dr[i] = 0; | |
10325bc5 | 1691 | #ifdef __CYGWIN__ |
de1b3c3d | 1692 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1693 | #endif |
9d3789f7 CF |
1694 | current_event.dwProcessId = pid; |
1695 | memset (¤t_event, 0, sizeof (current_event)); | |
0795be10 | 1696 | push_target (ops); |
cb851954 | 1697 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1698 | windows_clear_solib (); |
9d3789f7 CF |
1699 | clear_proceed_status (); |
1700 | init_wait_for_inferior (); | |
1701 | ||
6c95b8df PA |
1702 | inf = current_inferior (); |
1703 | inferior_appeared (inf, pid); | |
181e7f93 | 1704 | inf->attach_flag = attaching; |
7f9f62ba | 1705 | |
9f9d052e PM |
1706 | /* Make the new process the current inferior, so terminal handling |
1707 | can rely on it. When attaching, we don't know about any thread | |
1708 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1709 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1710 | inferior_ptid = pid_to_ptid (pid); |
1711 | ||
c44537cf | 1712 | terminal_init_inferior_with_pgrp (pid); |
9d3789f7 CF |
1713 | target_terminal_inferior (); |
1714 | ||
16d905e2 | 1715 | windows_initialization_done = 0; |
16c381f0 | 1716 | inf->control.stop_soon = STOP_QUIETLY; |
9d3789f7 CF |
1717 | while (1) |
1718 | { | |
1719 | stop_after_trap = 1; | |
e4c8541f | 1720 | wait_for_inferior (); |
2020b7ab | 1721 | tp = inferior_thread (); |
16c381f0 JK |
1722 | if (tp->suspend.stop_signal != TARGET_SIGNAL_TRAP) |
1723 | resume (0, tp->suspend.stop_signal); | |
9d3789f7 CF |
1724 | else |
1725 | break; | |
1726 | } | |
eff8332b | 1727 | |
16d905e2 | 1728 | windows_initialization_done = 1; |
16c381f0 | 1729 | inf->control.stop_soon = NO_STOP_QUIETLY; |
9d3789f7 CF |
1730 | stop_after_trap = 0; |
1731 | return; | |
1732 | } | |
1733 | ||
616a9dc4 CV |
1734 | /* Try to set or remove a user privilege to the current process. Return -1 |
1735 | if that fails, the previous setting of that privilege otherwise. | |
1736 | ||
1737 | This code is copied from the Cygwin source code and rearranged to allow | |
1738 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 1739 | available on NT/2K/XP. */ |
616a9dc4 CV |
1740 | static int |
1741 | set_process_privilege (const char *privilege, BOOL enable) | |
1742 | { | |
616a9dc4 CV |
1743 | HANDLE token_hdl = NULL; |
1744 | LUID restore_priv; | |
1745 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1746 | int ret = -1; | |
1747 | DWORD size; | |
1748 | ||
616a9dc4 CV |
1749 | if (!OpenProcessToken (GetCurrentProcess (), |
1750 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1751 | &token_hdl)) | |
1752 | goto out; | |
1753 | ||
418c6cb3 | 1754 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1755 | goto out; |
1756 | ||
1757 | new_priv.PrivilegeCount = 1; | |
1758 | new_priv.Privileges[0].Luid = restore_priv; | |
1759 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1760 | ||
1761 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1762 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1763 | goto out; |
1764 | #if 0 | |
1765 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1766 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 1767 | windows_attach(). */ |
616a9dc4 | 1768 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 1769 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
1770 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
1771 | goto out; | |
1772 | #endif | |
1773 | ||
1774 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1775 | ||
1776 | out: | |
1777 | if (token_hdl) | |
1778 | CloseHandle (token_hdl); | |
1779 | ||
1780 | return ret; | |
1781 | } | |
1782 | ||
02cc9f49 | 1783 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1784 | static void |
dc05df57 | 1785 | windows_attach (struct target_ops *ops, char *args, int from_tty) |
24e60978 SC |
1786 | { |
1787 | BOOL ok; | |
559e75c0 | 1788 | DWORD pid; |
24e60978 | 1789 | |
74164c56 | 1790 | pid = parse_pid_to_attach (args); |
24e60978 | 1791 | |
616a9dc4 CV |
1792 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1793 | { | |
1794 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
1795 | printf_unfiltered ("This can cause attach to " |
1796 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
1797 | } |
1798 | ||
dc05df57 | 1799 | windows_init_thread_list (); |
9d3789f7 | 1800 | ok = DebugActiveProcess (pid); |
91a175b3 | 1801 | saw_create = 0; |
24e60978 | 1802 | |
10325bc5 | 1803 | #ifdef __CYGWIN__ |
24e60978 | 1804 | if (!ok) |
baa93fa6 | 1805 | { |
581e13c1 | 1806 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
1807 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
1808 | ||
1809 | if (pid > 0) | |
1810 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1811 | } |
1812 | #endif | |
baa93fa6 | 1813 | |
10325bc5 PA |
1814 | if (!ok) |
1815 | error (_("Can't attach to process.")); | |
24e60978 | 1816 | |
2b008701 | 1817 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1818 | |
24e60978 SC |
1819 | if (from_tty) |
1820 | { | |
1821 | char *exec_file = (char *) get_exec_file (0); | |
1822 | ||
1823 | if (exec_file) | |
1824 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1825 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1826 | else |
1827 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1828 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1829 | |
1830 | gdb_flush (gdb_stdout); | |
1831 | } | |
1832 | ||
dc05df57 | 1833 | do_initial_windows_stuff (ops, pid, 1); |
9d3789f7 | 1834 | target_terminal_ours (); |
24e60978 SC |
1835 | } |
1836 | ||
24e60978 | 1837 | static void |
dc05df57 | 1838 | windows_detach (struct target_ops *ops, char *args, int from_tty) |
24e60978 | 1839 | { |
02cc9f49 CV |
1840 | int detached = 1; |
1841 | ||
2b008701 CF |
1842 | ptid_t ptid = {-1}; |
1843 | windows_resume (ops, ptid, 0, TARGET_SIGNAL_0); | |
96998ce7 | 1844 | |
2b008701 CF |
1845 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
1846 | { | |
1847 | error (_("Can't detach process %lu (error %lu)"), | |
1848 | current_event.dwProcessId, GetLastError ()); | |
1849 | detached = 0; | |
02cc9f49 | 1850 | } |
2b008701 CF |
1851 | DebugSetProcessKillOnExit (FALSE); |
1852 | ||
02cc9f49 | 1853 | if (detached && from_tty) |
24e60978 SC |
1854 | { |
1855 | char *exec_file = get_exec_file (0); | |
1856 | if (exec_file == 0) | |
1857 | exec_file = ""; | |
02cc9f49 CV |
1858 | printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file, |
1859 | current_event.dwProcessId); | |
24e60978 SC |
1860 | gdb_flush (gdb_stdout); |
1861 | } | |
7f9f62ba | 1862 | |
39f77062 | 1863 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1864 | detach_inferior (current_event.dwProcessId); |
1865 | ||
0795be10 | 1866 | unpush_target (ops); |
24e60978 SC |
1867 | } |
1868 | ||
3ee6f623 | 1869 | static char * |
dc05df57 | 1870 | windows_pid_to_exec_file (int pid) |
47216e51 | 1871 | { |
b3c613f2 | 1872 | static char path[__PMAX]; |
10325bc5 | 1873 | #ifdef __CYGWIN__ |
581e13c1 | 1874 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
1875 | int nchars; |
1876 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
2dc38344 | 1877 | sprintf (procexe, "/proc/%u/exe", pid); |
33605d39 CF |
1878 | nchars = readlink (procexe, path, sizeof(path)); |
1879 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 1880 | { |
33605d39 CF |
1881 | path[nchars] = '\0'; /* Got it */ |
1882 | return path; | |
47216e51 | 1883 | } |
10325bc5 PA |
1884 | #endif |
1885 | ||
33605d39 | 1886 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 1887 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
33605d39 CF |
1888 | if (!get_module_name (0, path)) |
1889 | path[0] = '\0'; | |
1890 | ||
1891 | return path; | |
47216e51 CV |
1892 | } |
1893 | ||
24e60978 SC |
1894 | /* Print status information about what we're accessing. */ |
1895 | ||
1896 | static void | |
dc05df57 | 1897 | windows_files_info (struct target_ops *ignore) |
24e60978 | 1898 | { |
181e7f93 PA |
1899 | struct inferior *inf = current_inferior (); |
1900 | ||
24e60978 | 1901 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
1902 | inf->attach_flag ? "attached" : "child", |
1903 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
1904 | } |
1905 | ||
24e60978 | 1906 | static void |
dc05df57 | 1907 | windows_open (char *arg, int from_tty) |
24e60978 | 1908 | { |
8a3fe4f8 | 1909 | error (_("Use the \"run\" command to start a Unix child process.")); |
24e60978 SC |
1910 | } |
1911 | ||
cd44747c PM |
1912 | /* Modify CreateProcess parameters for use of a new separate console. |
1913 | Parameters are: | |
1914 | *FLAGS: DWORD parameter for general process creation flags. | |
1915 | *SI: STARTUPINFO structure, for which the console window size and | |
1916 | console buffer size is filled in if GDB is running in a console. | |
1917 | to create the new console. | |
1918 | The size of the used font is not available on all versions of | |
1919 | Windows OS. Furthermore, the current font might not be the default | |
1920 | font, but this is still better than before. | |
1921 | If the windows and buffer sizes are computed, | |
1922 | SI->DWFLAGS is changed so that this information is used | |
1923 | by CreateProcess function. */ | |
1924 | ||
1925 | static void | |
1926 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
1927 | { | |
1928 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
1929 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
1930 | ||
1931 | if (hconsole != INVALID_HANDLE_VALUE) | |
1932 | { | |
1933 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
1934 | COORD font_size; | |
1935 | CONSOLE_FONT_INFO cfi; | |
1936 | ||
1937 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
1938 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
1939 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
1940 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
1941 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
1942 | if (font_size.X) | |
1943 | si->dwXSize *= font_size.X; | |
1944 | else | |
1945 | si->dwXSize *= 8; | |
1946 | if (font_size.Y) | |
1947 | si->dwYSize *= font_size.Y; | |
1948 | else | |
1949 | si->dwYSize *= 12; | |
1950 | si->dwXCountChars = sbinfo.dwSize.X; | |
1951 | si->dwYCountChars = sbinfo.dwSize.Y; | |
1952 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
1953 | } | |
1954 | *flags |= CREATE_NEW_CONSOLE; | |
1955 | } | |
1956 | ||
c93dbcba EZ |
1957 | #ifndef __CYGWIN__ |
1958 | /* Function called by qsort to sort environment strings. */ | |
1959 | ||
1960 | static int | |
1961 | envvar_cmp (const void *a, const void *b) | |
1962 | { | |
1963 | const char **p = (const char **) a; | |
1964 | const char **q = (const char **) b; | |
1965 | return strcasecmp (*p, *q); | |
1966 | } | |
1967 | #endif | |
1968 | ||
b7ff339d CV |
1969 | #ifdef __CYGWIN__ |
1970 | static void | |
1971 | clear_win32_environment (char **env) | |
1972 | { | |
1973 | int i; | |
1974 | size_t len; | |
1975 | wchar_t *copy = NULL, *equalpos; | |
1976 | ||
1977 | for (i = 0; env[i] && *env[i]; i++) | |
1978 | { | |
1979 | len = mbstowcs (NULL, env[i], 0) + 1; | |
1980 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
1981 | mbstowcs (copy, env[i], len); | |
1982 | equalpos = wcschr (copy, L'='); | |
1983 | if (equalpos) | |
1984 | *equalpos = L'\0'; | |
1985 | SetEnvironmentVariableW (copy, NULL); | |
1986 | } | |
1987 | xfree (copy); | |
1988 | } | |
1989 | #endif | |
1990 | ||
dc05df57 | 1991 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
1992 | EXEC_FILE is the file to run. |
1993 | ALLARGS is a string containing the arguments to the program. | |
1994 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1995 | ||
24e60978 | 1996 | static void |
dc05df57 | 1997 | windows_create_inferior (struct target_ops *ops, char *exec_file, |
136d6dae | 1998 | char *allargs, char **in_env, int from_tty) |
24e60978 | 1999 | { |
b3c613f2 | 2000 | STARTUPINFO si; |
41b4aadc | 2001 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2002 | cygwin_buf_t real_path[__PMAX]; |
2003 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 | 2004 | const char *sh; |
b3c613f2 CF |
2005 | cygwin_buf_t *toexec; |
2006 | cygwin_buf_t *cygallargs; | |
2007 | cygwin_buf_t *args; | |
b7ff339d CV |
2008 | char **old_env = NULL; |
2009 | PWCHAR w32_env; | |
d0d0ab16 | 2010 | size_t len; |
2becadee CF |
2011 | int tty; |
2012 | int ostdin, ostdout, ostderr; | |
41b4aadc | 2013 | #else |
b3c613f2 CF |
2014 | char real_path[__PMAX]; |
2015 | char shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 CV |
2016 | char *toexec; |
2017 | char *args; | |
41b4aadc | 2018 | HANDLE tty; |
c93dbcba EZ |
2019 | char *w32env; |
2020 | char *temp; | |
2021 | size_t envlen; | |
2022 | int i; | |
2023 | size_t envsize; | |
2024 | char **env; | |
41b4aadc | 2025 | #endif |
d0d0ab16 CV |
2026 | PROCESS_INFORMATION pi; |
2027 | BOOL ret; | |
2028 | DWORD flags = 0; | |
3cb3b8df | 2029 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2030 | |
2031 | if (!exec_file) | |
8a3fe4f8 | 2032 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
2033 | |
2034 | memset (&si, 0, sizeof (si)); | |
2035 | si.cb = sizeof (si); | |
2036 | ||
d0d0ab16 CV |
2037 | if (new_group) |
2038 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2039 | ||
2040 | if (new_console) | |
cd44747c | 2041 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2042 | |
10325bc5 | 2043 | #ifdef __CYGWIN__ |
349b409f | 2044 | if (!useshell) |
dfe7f3ac | 2045 | { |
d0d0ab16 CV |
2046 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2047 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2048 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2049 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2050 | toexec = real_path; |
b3c613f2 | 2051 | #ifdef __USEWIDE |
d0d0ab16 CV |
2052 | len = mbstowcs (NULL, allargs, 0) + 1; |
2053 | if (len == (size_t) -1) | |
2054 | error (_("Error starting executable: %d"), errno); | |
2055 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2056 | mbstowcs (cygallargs, allargs, len); | |
60c5c021 CF |
2057 | #else |
2058 | cygallargs = allargs; | |
b3c613f2 | 2059 | #endif |
dfe7f3ac CF |
2060 | } |
2061 | else | |
2062 | { | |
349b409f CF |
2063 | sh = getenv ("SHELL"); |
2064 | if (!sh) | |
2065 | sh = "/bin/sh"; | |
b3c613f2 | 2066 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2067 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2068 | #ifdef __USEWIDE |
d0d0ab16 CV |
2069 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2070 | + mbstowcs (NULL, allargs, 0) + 2; | |
2071 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2072 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2073 | #else |
581e13c1 MS |
2074 | cygallargs = (char *) |
2075 | alloca (sizeof (" -c 'exec '") + strlen (exec_file) | |
b3c613f2 CF |
2076 | + strlen (allargs) + 2); |
2077 | sprintf (cygallargs, " -c 'exec %s %s'", exec_file, allargs); | |
2078 | #endif | |
dfe7f3ac | 2079 | toexec = shell; |
d0d0ab16 | 2080 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2081 | } |
b3c613f2 CF |
2082 | |
2083 | #ifdef __USEWIDE | |
2084 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2085 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2086 | wcscpy (args, toexec); |
2087 | wcscat (args, L" "); | |
2088 | wcscat (args, cygallargs); | |
b3c613f2 CF |
2089 | #else |
2090 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); | |
2091 | strcpy (args, toexec); | |
2092 | strcat (args, " "); | |
2093 | strcat (args, cygallargs); | |
2094 | #endif | |
2095 | ||
b7ff339d CV |
2096 | #ifdef CW_CVT_ENV_TO_WINENV |
2097 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2098 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2099 | if (w32_env != (PWCHAR) -1) | |
2100 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2101 | else | |
2102 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
2103 | #endif | |
2104 | { | |
2105 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2106 | clear_win32_environment (environ); | |
2107 | /* Prepare the environment vars for CreateProcess. */ | |
2108 | old_env = environ; | |
2109 | environ = in_env; | |
2110 | cygwin_internal (CW_SYNC_WINENV); | |
2111 | w32_env = NULL; | |
2112 | } | |
1750a5ef | 2113 | |
2becadee CF |
2114 | if (!inferior_io_terminal) |
2115 | tty = ostdin = ostdout = ostderr = -1; | |
2116 | else | |
2117 | { | |
2118 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2119 | if (tty < 0) | |
2120 | { | |
2121 | print_sys_errmsg (inferior_io_terminal, errno); | |
2122 | ostdin = ostdout = ostderr = -1; | |
2123 | } | |
2124 | else | |
2125 | { | |
2126 | ostdin = dup (0); | |
2127 | ostdout = dup (1); | |
2128 | ostderr = dup (2); | |
2129 | dup2 (tty, 0); | |
2130 | dup2 (tty, 1); | |
2131 | dup2 (tty, 2); | |
2132 | } | |
2133 | } | |
d0d0ab16 CV |
2134 | |
2135 | windows_init_thread_list (); | |
b3c613f2 CF |
2136 | ret = CreateProcess (0, |
2137 | args, /* command line */ | |
2138 | NULL, /* Security */ | |
2139 | NULL, /* thread */ | |
2140 | TRUE, /* inherit handles */ | |
2141 | flags, /* start flags */ | |
b7ff339d | 2142 | w32_env, /* environment */ |
b3c613f2 CF |
2143 | NULL, /* current directory */ |
2144 | &si, | |
2145 | &pi); | |
b7ff339d CV |
2146 | if (w32_env) |
2147 | /* Just free the Win32 environment, if it could be created. */ | |
2148 | free (w32_env); | |
2149 | else | |
2150 | { | |
2151 | /* Reset all environment variables to avoid leftover on next run. */ | |
2152 | clear_win32_environment (in_env); | |
2153 | /* Restore normal GDB environment variables. */ | |
2154 | environ = old_env; | |
2155 | cygwin_internal (CW_SYNC_WINENV); | |
2156 | } | |
2157 | ||
d0d0ab16 CV |
2158 | if (tty >= 0) |
2159 | { | |
2160 | close (tty); | |
2161 | dup2 (ostdin, 0); | |
2162 | dup2 (ostdout, 1); | |
2163 | dup2 (ostderr, 2); | |
2164 | close (ostdin); | |
2165 | close (ostdout); | |
2166 | close (ostderr); | |
2167 | } | |
41b4aadc | 2168 | #else |
b3c613f2 | 2169 | toexec = exec_file; |
d0d0ab16 CV |
2170 | args = alloca (strlen (toexec) + strlen (allargs) + 2); |
2171 | strcpy (args, toexec); | |
2172 | strcat (args, " "); | |
2173 | strcat (args, allargs); | |
2174 | ||
d0d0ab16 CV |
2175 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2176 | ||
41b4aadc CF |
2177 | if (!inferior_io_terminal) |
2178 | tty = INVALID_HANDLE_VALUE; | |
2179 | else | |
2180 | { | |
2181 | SECURITY_ATTRIBUTES sa; | |
2182 | sa.nLength = sizeof(sa); | |
2183 | sa.lpSecurityDescriptor = 0; | |
2184 | sa.bInheritHandle = TRUE; | |
2185 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2186 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2187 | if (tty == INVALID_HANDLE_VALUE) | |
2188 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2189 | inferior_io_terminal, (unsigned) GetLastError ()); | |
2190 | else | |
2191 | { | |
2192 | si.hStdInput = tty; | |
2193 | si.hStdOutput = tty; | |
2194 | si.hStdError = tty; | |
2195 | si.dwFlags |= STARTF_USESTDHANDLES; | |
2196 | } | |
2197 | } | |
2becadee | 2198 | |
c93dbcba EZ |
2199 | /* CreateProcess takes the environment list as a null terminated set of |
2200 | strings (i.e. two nulls terminate the list). */ | |
2201 | ||
2202 | /* Get total size for env strings. */ | |
2203 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2204 | envlen += strlen (in_env[i]) + 1; | |
2205 | ||
2206 | envsize = sizeof (in_env[0]) * (i + 1); | |
2207 | env = (char **) alloca (envsize); | |
2208 | memcpy (env, in_env, envsize); | |
2209 | /* Windows programs expect the environment block to be sorted. */ | |
2210 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2211 | ||
2212 | w32env = alloca (envlen + 1); | |
2213 | ||
2214 | /* Copy env strings into new buffer. */ | |
2215 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2216 | { | |
2217 | strcpy (temp, env[i]); | |
2218 | temp += strlen (temp) + 1; | |
2219 | } | |
2220 | ||
2221 | /* Final nil string to terminate new env. */ | |
2222 | *temp = 0; | |
2223 | ||
dc05df57 | 2224 | windows_init_thread_list (); |
d0d0ab16 CV |
2225 | ret = CreateProcessA (0, |
2226 | args, /* command line */ | |
2227 | NULL, /* Security */ | |
2228 | NULL, /* thread */ | |
2229 | TRUE, /* inherit handles */ | |
2230 | flags, /* start flags */ | |
c93dbcba | 2231 | w32env, /* environment */ |
d0d0ab16 CV |
2232 | NULL, /* current directory */ |
2233 | &si, | |
2234 | &pi); | |
41b4aadc CF |
2235 | if (tty != INVALID_HANDLE_VALUE) |
2236 | CloseHandle (tty); | |
10325bc5 | 2237 | #endif |
2becadee | 2238 | |
24e60978 | 2239 | if (!ret) |
8a3fe4f8 AC |
2240 | error (_("Error creating process %s, (error %d)."), |
2241 | exec_file, (unsigned) GetLastError ()); | |
24e60978 | 2242 | |
c1766e7d PM |
2243 | CloseHandle (pi.hThread); |
2244 | CloseHandle (pi.hProcess); | |
2245 | ||
dfe7f3ac CF |
2246 | if (useshell && shell[0] != '\0') |
2247 | saw_create = -1; | |
2248 | else | |
2249 | saw_create = 0; | |
2250 | ||
dc05df57 | 2251 | do_initial_windows_stuff (ops, pi.dwProcessId, 0); |
d3a09475 | 2252 | |
dc05df57 | 2253 | /* windows_continue (DBG_CONTINUE, -1); */ |
24e60978 SC |
2254 | } |
2255 | ||
2256 | static void | |
dc05df57 | 2257 | windows_mourn_inferior (struct target_ops *ops) |
24e60978 | 2258 | { |
dc05df57 | 2259 | (void) windows_continue (DBG_CONTINUE, -1); |
fa4ba8da | 2260 | i386_cleanup_dregs(); |
bf25528d CF |
2261 | if (open_process_used) |
2262 | { | |
2263 | CHECK (CloseHandle (current_process_handle)); | |
2264 | open_process_used = 0; | |
2265 | } | |
0795be10 | 2266 | unpush_target (ops); |
24e60978 SC |
2267 | generic_mourn_inferior (); |
2268 | } | |
2269 | ||
24e60978 | 2270 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 2271 | ^C on the controlling terminal. */ |
24e60978 | 2272 | |
b607efe7 | 2273 | static void |
dc05df57 | 2274 | windows_stop (ptid_t ptid) |
24e60978 | 2275 | { |
1ef980b9 | 2276 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2277 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2278 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2279 | } |
2280 | ||
3ee6f623 | 2281 | static int |
dc05df57 | 2282 | windows_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, |
0a65a603 AC |
2283 | int write, struct mem_attrib *mem, |
2284 | struct target_ops *target) | |
24e60978 | 2285 | { |
5732a500 | 2286 | SIZE_T done = 0; |
24e60978 SC |
2287 | if (write) |
2288 | { | |
29fe111d | 2289 | DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n", |
2c647436 | 2290 | len, (DWORD) (uintptr_t) memaddr)); |
2b008701 | 2291 | if (!WriteProcessMemory (current_process_handle, |
2c647436 | 2292 | (LPVOID) (uintptr_t) memaddr, our, |
6f17862b CF |
2293 | len, &done)) |
2294 | done = 0; | |
2b008701 | 2295 | FlushInstructionCache (current_process_handle, |
2c647436 | 2296 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2297 | } |
2298 | else | |
2299 | { | |
29fe111d | 2300 | DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n", |
2c647436 | 2301 | len, (DWORD) (uintptr_t) memaddr)); |
2b008701 | 2302 | if (!ReadProcessMemory (current_process_handle, |
2c647436 | 2303 | (LPCVOID) (uintptr_t) memaddr, our, |
6f17862b CF |
2304 | len, &done)) |
2305 | done = 0; | |
24e60978 SC |
2306 | } |
2307 | return done; | |
2308 | } | |
2309 | ||
3ee6f623 | 2310 | static void |
7d85a9c0 | 2311 | windows_kill_inferior (struct target_ops *ops) |
24e60978 | 2312 | { |
3cee93ac CF |
2313 | CHECK (TerminateProcess (current_process_handle, 0)); |
2314 | ||
b5edcb45 ILT |
2315 | for (;;) |
2316 | { | |
dc05df57 | 2317 | if (!windows_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 2318 | break; |
3cee93ac | 2319 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2320 | break; |
3cee93ac | 2321 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2322 | break; |
2323 | } | |
2324 | ||
581e13c1 | 2325 | target_mourn_inferior (); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
2326 | } |
2327 | ||
24e60978 | 2328 | static void |
dc05df57 | 2329 | windows_prepare_to_store (struct regcache *regcache) |
24e60978 | 2330 | { |
581e13c1 | 2331 | /* Do nothing, since we can store individual regs. */ |
24e60978 SC |
2332 | } |
2333 | ||
2334 | static int | |
dc05df57 | 2335 | windows_can_run (void) |
24e60978 SC |
2336 | { |
2337 | return 1; | |
2338 | } | |
2339 | ||
2340 | static void | |
dc05df57 | 2341 | windows_close (int x) |
24e60978 | 2342 | { |
dc05df57 | 2343 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
3bccec63 | 2344 | PIDGET (inferior_ptid))); |
24e60978 | 2345 | } |
1ef980b9 | 2346 | |
581e13c1 | 2347 | /* Convert pid to printable format. */ |
3ee6f623 | 2348 | static char * |
117de6a9 | 2349 | windows_pid_to_str (struct target_ops *ops, ptid_t ptid) |
24e60978 | 2350 | { |
3ee6f623 | 2351 | static char buf[80]; |
3ee6f623 | 2352 | |
2dc38344 PA |
2353 | if (ptid_get_tid (ptid) != 0) |
2354 | { | |
2355 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2356 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2357 | return buf; | |
2358 | } | |
2359 | ||
2360 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2361 | } |
2362 | ||
de1b3c3d | 2363 | static LONGEST |
dc05df57 | 2364 | windows_xfer_shared_libraries (struct target_ops *ops, |
de1b3c3d PA |
2365 | enum target_object object, const char *annex, |
2366 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2367 | ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2368 | { |
de1b3c3d PA |
2369 | struct obstack obstack; |
2370 | const char *buf; | |
2371 | LONGEST len_avail; | |
3cb8e7f6 | 2372 | struct so_list *so; |
3cb8e7f6 | 2373 | |
de1b3c3d PA |
2374 | if (writebuf) |
2375 | return -1; | |
3cb8e7f6 | 2376 | |
de1b3c3d PA |
2377 | obstack_init (&obstack); |
2378 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2379 | for (so = solib_start.next; so; so = so->next) | |
581e13c1 MS |
2380 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) |
2381 | (uintptr_t) so->lm_info->load_addr, | |
5af949e3 | 2382 | target_gdbarch, &obstack); |
de1b3c3d | 2383 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2384 | |
de1b3c3d PA |
2385 | buf = obstack_finish (&obstack); |
2386 | len_avail = strlen (buf); | |
2387 | if (offset >= len_avail) | |
2388 | return 0; | |
3cb8e7f6 | 2389 | |
de1b3c3d PA |
2390 | if (len > len_avail - offset) |
2391 | len = len_avail - offset; | |
2392 | memcpy (readbuf, buf + offset, len); | |
3cb8e7f6 | 2393 | |
de1b3c3d PA |
2394 | obstack_free (&obstack, NULL); |
2395 | return len; | |
3cb8e7f6 CF |
2396 | } |
2397 | ||
de1b3c3d | 2398 | static LONGEST |
dc05df57 | 2399 | windows_xfer_partial (struct target_ops *ops, enum target_object object, |
de1b3c3d PA |
2400 | const char *annex, gdb_byte *readbuf, |
2401 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2402 | { |
de1b3c3d | 2403 | switch (object) |
3cb8e7f6 | 2404 | { |
de1b3c3d PA |
2405 | case TARGET_OBJECT_MEMORY: |
2406 | if (readbuf) | |
2407 | return (*ops->deprecated_xfer_memory) (offset, readbuf, | |
244e85c8 | 2408 | len, 0/*read*/, NULL, ops); |
de1b3c3d PA |
2409 | if (writebuf) |
2410 | return (*ops->deprecated_xfer_memory) (offset, (gdb_byte *) writebuf, | |
2411 | len, 1/*write*/, NULL, ops); | |
2412 | return -1; | |
2413 | ||
2414 | case TARGET_OBJECT_LIBRARIES: | |
dc05df57 | 2415 | return windows_xfer_shared_libraries (ops, object, annex, readbuf, |
de1b3c3d | 2416 | writebuf, offset, len); |
3929abe9 | 2417 | |
de1b3c3d PA |
2418 | default: |
2419 | if (ops->beneath != NULL) | |
2420 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2421 | readbuf, writebuf, offset, len); | |
2422 | return -1; | |
3929abe9 | 2423 | } |
02c5aecd CF |
2424 | } |
2425 | ||
711e434b PM |
2426 | /* Provide thread local base, i.e. Thread Information Block address. |
2427 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
2428 | ||
2429 | static int | |
2430 | windows_get_tib_address (ptid_t ptid, CORE_ADDR *addr) | |
2431 | { | |
2432 | thread_info *th; | |
2433 | ||
2434 | th = thread_rec (ptid_get_tid (ptid), 0); | |
2435 | if (th == NULL) | |
2436 | return 0; | |
2437 | ||
2438 | if (addr != NULL) | |
2439 | *addr = th->thread_local_base; | |
2440 | ||
2441 | return 1; | |
2442 | } | |
2443 | ||
1e2f1c5c JB |
2444 | static ptid_t |
2445 | windows_get_ada_task_ptid (long lwp, long thread) | |
2446 | { | |
2447 | return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp); | |
2448 | } | |
2449 | ||
3ee6f623 | 2450 | static void |
dc05df57 | 2451 | init_windows_ops (void) |
3ee6f623 | 2452 | { |
dc05df57 CF |
2453 | windows_ops.to_shortname = "child"; |
2454 | windows_ops.to_longname = "Win32 child process"; | |
2455 | windows_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2456 | windows_ops.to_open = windows_open; | |
2457 | windows_ops.to_close = windows_close; | |
2458 | windows_ops.to_attach = windows_attach; | |
2459 | windows_ops.to_attach_no_wait = 1; | |
2460 | windows_ops.to_detach = windows_detach; | |
2461 | windows_ops.to_resume = windows_resume; | |
2462 | windows_ops.to_wait = windows_wait; | |
2463 | windows_ops.to_fetch_registers = windows_fetch_inferior_registers; | |
2464 | windows_ops.to_store_registers = windows_store_inferior_registers; | |
2465 | windows_ops.to_prepare_to_store = windows_prepare_to_store; | |
2466 | windows_ops.deprecated_xfer_memory = windows_xfer_memory; | |
2467 | windows_ops.to_xfer_partial = windows_xfer_partial; | |
2468 | windows_ops.to_files_info = windows_files_info; | |
2469 | windows_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2470 | windows_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2471 | windows_ops.to_terminal_init = terminal_init_inferior; | |
2472 | windows_ops.to_terminal_inferior = terminal_inferior; | |
2473 | windows_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2474 | windows_ops.to_terminal_ours = terminal_ours; | |
2475 | windows_ops.to_terminal_save_ours = terminal_save_ours; | |
2476 | windows_ops.to_terminal_info = child_terminal_info; | |
2477 | windows_ops.to_kill = windows_kill_inferior; | |
2478 | windows_ops.to_create_inferior = windows_create_inferior; | |
2479 | windows_ops.to_mourn_inferior = windows_mourn_inferior; | |
2480 | windows_ops.to_can_run = windows_can_run; | |
2481 | windows_ops.to_thread_alive = windows_thread_alive; | |
2482 | windows_ops.to_pid_to_str = windows_pid_to_str; | |
2483 | windows_ops.to_stop = windows_stop; | |
2484 | windows_ops.to_stratum = process_stratum; | |
c35b1492 PA |
2485 | windows_ops.to_has_all_memory = default_child_has_all_memory; |
2486 | windows_ops.to_has_memory = default_child_has_memory; | |
2487 | windows_ops.to_has_stack = default_child_has_stack; | |
2488 | windows_ops.to_has_registers = default_child_has_registers; | |
2489 | windows_ops.to_has_execution = default_child_has_execution; | |
dc05df57 | 2490 | windows_ops.to_pid_to_exec_file = windows_pid_to_exec_file; |
1e2f1c5c | 2491 | windows_ops.to_get_ada_task_ptid = windows_get_ada_task_ptid; |
711e434b | 2492 | windows_ops.to_get_tib_address = windows_get_tib_address; |
9bb9e8ad | 2493 | |
5aca5a82 PM |
2494 | i386_use_watchpoints (&windows_ops); |
2495 | ||
9bb9e8ad PM |
2496 | i386_dr_low.set_control = cygwin_set_dr7; |
2497 | i386_dr_low.set_addr = cygwin_set_dr; | |
7b50312a | 2498 | i386_dr_low.get_addr = cygwin_get_dr; |
9bb9e8ad | 2499 | i386_dr_low.get_status = cygwin_get_dr6; |
7b50312a | 2500 | i386_dr_low.get_control = cygwin_get_dr7; |
9bb9e8ad PM |
2501 | |
2502 | /* i386_dr_low.debug_register_length field is set by | |
2503 | calling i386_set_debug_register_length function | |
2504 | in processor windows specific native file. */ | |
2505 | ||
dc05df57 | 2506 | windows_ops.to_magic = OPS_MAGIC; |
c719b714 | 2507 | } |
24e60978 | 2508 | |
3929abe9 | 2509 | static void |
dc05df57 | 2510 | set_windows_aliases (char *argv0) |
3929abe9 CF |
2511 | { |
2512 | add_info_alias ("dll", "sharedlibrary", 1); | |
2513 | } | |
2514 | ||
24e60978 | 2515 | void |
dc05df57 | 2516 | _initialize_windows_nat (void) |
24e60978 | 2517 | { |
fa58ee11 EZ |
2518 | struct cmd_list_element *c; |
2519 | ||
dc05df57 | 2520 | init_windows_ops (); |
1ef980b9 | 2521 | |
d0d0ab16 CV |
2522 | #ifdef __CYGWIN__ |
2523 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
2524 | #endif | |
2525 | ||
fa58ee11 | 2526 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2527 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2528 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2529 | |
2530 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2531 | ||
70992597 PM |
2532 | add_com_alias ("add-shared-symbol-files", "dll-symbols", class_alias, 1); |
2533 | ||
2534 | add_com_alias ("assf", "dll-symbols", class_alias, 1); | |
2535 | ||
10325bc5 | 2536 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2537 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2538 | Set use of shell to start subprocess."), _("\ | |
2539 | Show use of shell to start subprocess."), NULL, | |
2540 | NULL, | |
2541 | NULL, /* FIXME: i18n: */ | |
2542 | &setlist, &showlist); | |
2543 | ||
581e13c1 MS |
2544 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
2545 | &cygwin_exceptions, _("\ | |
09280ddf CF |
2546 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
2547 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2548 | NULL, | |
2549 | NULL, /* FIXME: i18n: */ | |
2550 | &setlist, &showlist); | |
10325bc5 | 2551 | #endif |
09280ddf | 2552 | |
5bf193a2 AC |
2553 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2554 | Set creation of new console when creating child process."), _("\ | |
2555 | Show creation of new console when creating child process."), NULL, | |
2556 | NULL, | |
2557 | NULL, /* FIXME: i18n: */ | |
2558 | &setlist, &showlist); | |
2559 | ||
2560 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2561 | Set creation of new group when creating child process."), _("\ | |
2562 | Show creation of new group when creating child process."), NULL, | |
2563 | NULL, | |
2564 | NULL, /* FIXME: i18n: */ | |
2565 | &setlist, &showlist); | |
2566 | ||
2567 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2568 | Set whether to display execution in child process."), _("\ | |
2569 | Show whether to display execution in child process."), NULL, | |
2570 | NULL, | |
2571 | NULL, /* FIXME: i18n: */ | |
2572 | &setlist, &showlist); | |
2573 | ||
2574 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2575 | Set whether to display kernel events in child process."), _("\ | |
2576 | Show whether to display kernel events in child process."), NULL, | |
2577 | NULL, | |
2578 | NULL, /* FIXME: i18n: */ | |
2579 | &setlist, &showlist); | |
2580 | ||
2581 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2582 | Set whether to display memory accesses in child process."), _("\ | |
2583 | Show whether to display memory accesses in child process."), NULL, | |
2584 | NULL, | |
2585 | NULL, /* FIXME: i18n: */ | |
2586 | &setlist, &showlist); | |
2587 | ||
2588 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2589 | &debug_exceptions, _("\ | |
2590 | Set whether to display kernel exceptions in child process."), _("\ | |
2591 | Show whether to display kernel exceptions in child process."), NULL, | |
2592 | NULL, | |
2593 | NULL, /* FIXME: i18n: */ | |
2594 | &setlist, &showlist); | |
1ef980b9 | 2595 | |
711e434b | 2596 | init_w32_command_list (); |
c1748f97 PM |
2597 | |
2598 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2599 | _("Display selectors infos."), |
c1748f97 | 2600 | &info_w32_cmdlist); |
dc05df57 CF |
2601 | add_target (&windows_ops); |
2602 | deprecated_init_ui_hook = set_windows_aliases; | |
24e60978 | 2603 | } |
3cee93ac | 2604 | |
fa4ba8da PM |
2605 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2606 | ||
2607 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2608 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 2609 | actually set up when windows_continue is called. */ |
9bb9e8ad | 2610 | static void |
fa4ba8da PM |
2611 | cygwin_set_dr (int i, CORE_ADDR addr) |
2612 | { | |
2613 | if (i < 0 || i > 3) | |
2614 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2615 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 2616 | dr[i] = addr; |
fa4ba8da PM |
2617 | debug_registers_changed = 1; |
2618 | debug_registers_used = 1; | |
2619 | } | |
2620 | ||
2621 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2622 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 2623 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
2624 | static void |
2625 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 2626 | { |
9bb9e8ad | 2627 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
2628 | debug_registers_changed = 1; |
2629 | debug_registers_used = 1; | |
2630 | } | |
2631 | ||
7b50312a PA |
2632 | /* Get the value of debug register I from the inferior. */ |
2633 | ||
2634 | static CORE_ADDR | |
2635 | cygwin_get_dr (int i) | |
2636 | { | |
2637 | return dr[i]; | |
2638 | } | |
2639 | ||
fa4ba8da PM |
2640 | /* Get the value of the DR6 debug status register from the inferior. |
2641 | Here we just return the value stored in dr[6] | |
2642 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 2643 | static unsigned long |
fa4ba8da PM |
2644 | cygwin_get_dr6 (void) |
2645 | { | |
9bb9e8ad | 2646 | return (unsigned long) dr[6]; |
fa4ba8da PM |
2647 | } |
2648 | ||
7b50312a PA |
2649 | /* Get the value of the DR7 debug status register from the inferior. |
2650 | Here we just return the value stored in dr[7] by the last call to | |
2651 | thread_rec for current_event.dwThreadId id. */ | |
2652 | ||
2653 | static unsigned long | |
2654 | cygwin_get_dr7 (void) | |
2655 | { | |
2656 | return (unsigned long) dr[7]; | |
2657 | } | |
2658 | ||
2dc38344 | 2659 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 2660 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 2661 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
3cee93ac | 2662 | static int |
28439f5e | 2663 | windows_thread_alive (struct target_ops *ops, ptid_t ptid) |
3cee93ac | 2664 | { |
2dc38344 PA |
2665 | int tid; |
2666 | ||
2667 | gdb_assert (ptid_get_tid (ptid) != 0); | |
2668 | tid = ptid_get_tid (ptid); | |
39f77062 | 2669 | |
581e13c1 MS |
2670 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 |
2671 | ? FALSE : TRUE; | |
3cee93ac CF |
2672 | } |
2673 | ||
2a3d5645 CF |
2674 | void |
2675 | _initialize_check_for_gdb_ini (void) | |
2676 | { | |
2677 | char *homedir; | |
2678 | if (inhibit_gdbinit) | |
2679 | return; | |
2680 | ||
2681 | homedir = getenv ("HOME"); | |
2682 | if (homedir) | |
2683 | { | |
2684 | char *p; | |
2685 | char *oldini = (char *) alloca (strlen (homedir) + | |
2686 | sizeof ("/gdb.ini")); | |
2687 | strcpy (oldini, homedir); | |
2688 | p = strchr (oldini, '\0'); | |
0ba1096a | 2689 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
2690 | *p++ = '/'; |
2691 | strcpy (p, "gdb.ini"); | |
2692 | if (access (oldini, 0) == 0) | |
2693 | { | |
2694 | int len = strlen (oldini); | |
2695 | char *newini = alloca (len + 1); | |
dfe7f3ac | 2696 | sprintf (newini, "%.*s.gdbinit", |
58fa08f0 | 2697 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2698 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2699 | } |
2700 | } | |
2701 | } | |
33605d39 | 2702 | |
2b008701 | 2703 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 2704 | these functions could not be found. */ |
2b008701 CF |
2705 | static BOOL WINAPI |
2706 | bad_DebugActiveProcessStop (DWORD w) | |
2707 | { | |
2708 | return FALSE; | |
2709 | } | |
2710 | static BOOL WINAPI | |
2711 | bad_DebugBreakProcess (HANDLE w) | |
2712 | { | |
2713 | return FALSE; | |
2714 | } | |
2715 | static BOOL WINAPI | |
2716 | bad_DebugSetProcessKillOnExit (BOOL w) | |
2717 | { | |
2718 | return FALSE; | |
2719 | } | |
2720 | static BOOL WINAPI | |
2721 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
2722 | { | |
2723 | return FALSE; | |
2724 | } | |
b3c613f2 CF |
2725 | |
2726 | #ifdef __USEWIDE | |
2b008701 | 2727 | static DWORD WINAPI |
b3c613f2 | 2728 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
2729 | { |
2730 | return 0; | |
2731 | } | |
d0d0ab16 CV |
2732 | #else |
2733 | static DWORD WINAPI | |
b3c613f2 | 2734 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
2735 | { |
2736 | return 0; | |
2737 | } | |
2738 | #endif | |
b3c613f2 | 2739 | |
2b008701 CF |
2740 | static BOOL WINAPI |
2741 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
2742 | { | |
2743 | return FALSE; | |
2744 | } | |
2745 | ||
418c6cb3 CF |
2746 | static BOOL WINAPI |
2747 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
2748 | { | |
2749 | return FALSE; | |
2750 | } | |
2751 | ||
cd44747c PM |
2752 | static BOOL WINAPI |
2753 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
2754 | { | |
2755 | f->nFont = 0; | |
2756 | return 1; | |
2757 | } | |
2758 | static COORD WINAPI | |
2759 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
2760 | { | |
2761 | COORD size; | |
2762 | size.X = 8; | |
2763 | size.Y = 12; | |
2764 | return size; | |
2765 | } | |
2766 | ||
2b008701 | 2767 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 2768 | of Windows. */ |
33605d39 | 2769 | void |
2b008701 | 2770 | _initialize_loadable (void) |
33605d39 | 2771 | { |
2b008701 CF |
2772 | HMODULE hm = NULL; |
2773 | ||
2774 | hm = LoadLibrary ("kernel32.dll"); | |
2775 | if (hm) | |
33605d39 | 2776 | { |
b3c613f2 | 2777 | DebugActiveProcessStop = (void *) |
2b008701 | 2778 | GetProcAddress (hm, "DebugActiveProcessStop"); |
b3c613f2 | 2779 | DebugBreakProcess = (void *) |
2b008701 | 2780 | GetProcAddress (hm, "DebugBreakProcess"); |
b3c613f2 | 2781 | DebugSetProcessKillOnExit = (void *) |
2b008701 | 2782 | GetProcAddress (hm, "DebugSetProcessKillOnExit"); |
cd44747c PM |
2783 | GetConsoleFontSize = (void *) |
2784 | GetProcAddress (hm, "GetConsoleFontSize"); | |
2785 | GetCurrentConsoleFont = (void *) | |
2786 | GetProcAddress (hm, "GetCurrentConsoleFont"); | |
2b008701 | 2787 | } |
33605d39 | 2788 | |
2b008701 | 2789 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 2790 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
2791 | if (!DebugBreakProcess) |
2792 | DebugBreakProcess = bad_DebugBreakProcess; | |
2793 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 2794 | { |
b3c613f2 CF |
2795 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
2796 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 2797 | } |
cd44747c PM |
2798 | if (!GetConsoleFontSize) |
2799 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
2800 | if (!GetCurrentConsoleFont) | |
2801 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 2802 | |
2b008701 | 2803 | /* Load optional functions used for retrieving filename information |
581e13c1 | 2804 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
2805 | hm = LoadLibrary ("psapi.dll"); |
2806 | if (hm) | |
2807 | { | |
b3c613f2 | 2808 | EnumProcessModules = (void *) |
2b008701 | 2809 | GetProcAddress (hm, "EnumProcessModules"); |
b3c613f2 | 2810 | GetModuleInformation = (void *) |
2b008701 | 2811 | GetProcAddress (hm, "GetModuleInformation"); |
b3c613f2 CF |
2812 | GetModuleFileNameEx = (void *) |
2813 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
2814 | } |
2815 | ||
b3c613f2 | 2816 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
2817 | { |
2818 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 2819 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
2820 | EnumProcessModules = bad_EnumProcessModules; |
2821 | GetModuleInformation = bad_GetModuleInformation; | |
2822 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
2823 | /* This will probably fail on Windows 9x/Me. Let the user know |
2824 | that we're missing some functionality. */ | |
2825 | warning(_("\ | |
2826 | cannot automatically find executable file or library to read symbols.\n\ | |
2827 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
2828 | } |
2829 | ||
2830 | hm = LoadLibrary ("advapi32.dll"); | |
2831 | if (hm) | |
2832 | { | |
b3c613f2 CF |
2833 | OpenProcessToken = (void *) GetProcAddress (hm, "OpenProcessToken"); |
2834 | LookupPrivilegeValueA = (void *) | |
418c6cb3 | 2835 | GetProcAddress (hm, "LookupPrivilegeValueA"); |
b3c613f2 | 2836 | AdjustTokenPrivileges = (void *) |
418c6cb3 CF |
2837 | GetProcAddress (hm, "AdjustTokenPrivileges"); |
2838 | /* Only need to set one of these since if OpenProcessToken fails nothing | |
581e13c1 MS |
2839 | else is needed. */ |
2840 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
2841 | || !AdjustTokenPrivileges) | |
b3c613f2 | 2842 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 2843 | } |
33605d39 | 2844 | } |