Commit | Line | Data |
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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
8acc9f48 | 3 | Copyright (C) 1995-2013 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" | |
92107356 | 52 | #include "gdb_bfd.h" |
de1b3c3d | 53 | #include "gdb_obstack.h" |
24e60978 | 54 | #include "gdb_string.h" |
fdfa3315 | 55 | #include "gdbthread.h" |
24e60978 | 56 | #include "gdbcmd.h" |
1750a5ef | 57 | #include <sys/param.h> |
1e37c281 | 58 | #include <unistd.h> |
4646aa9d | 59 | #include "exec.h" |
3ee6f623 | 60 | #include "solist.h" |
3cb8e7f6 | 61 | #include "solib.h" |
de1b3c3d | 62 | #include "xml-support.h" |
24e60978 | 63 | |
6c7de422 MK |
64 | #include "i386-tdep.h" |
65 | #include "i387-tdep.h" | |
66 | ||
31b060a2 CF |
67 | #include "windows-tdep.h" |
68 | #include "windows-nat.h" | |
9bb9e8ad | 69 | #include "i386-nat.h" |
ecc13e53 | 70 | #include "complaints.h" |
de1b3c3d | 71 | |
418c6cb3 | 72 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
73 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
74 | #define DebugBreakProcess dyn_DebugBreakProcess | |
75 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
76 | #define EnumProcessModules dyn_EnumProcessModules | |
2b008701 | 77 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
78 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
79 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
80 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
81 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
2b008701 | 82 | |
418c6cb3 CF |
83 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, |
84 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
2b008701 CF |
85 | static BOOL WINAPI (*DebugActiveProcessStop) (DWORD); |
86 | static BOOL WINAPI (*DebugBreakProcess) (HANDLE); | |
87 | static BOOL WINAPI (*DebugSetProcessKillOnExit) (BOOL); | |
88 | static BOOL WINAPI (*EnumProcessModules) (HANDLE, HMODULE *, DWORD, | |
89 | LPDWORD); | |
2b008701 CF |
90 | static BOOL WINAPI (*GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, |
91 | DWORD); | |
418c6cb3 CF |
92 | static BOOL WINAPI (*LookupPrivilegeValueA)(LPCSTR, LPCSTR, PLUID); |
93 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
581e13c1 MS |
94 | static BOOL WINAPI (*GetCurrentConsoleFont) (HANDLE, BOOL, |
95 | CONSOLE_FONT_INFO *); | |
cd44747c | 96 | static COORD WINAPI (*GetConsoleFontSize) (HANDLE, DWORD); |
2b008701 | 97 | |
dc05df57 | 98 | static struct target_ops windows_ops; |
3ee6f623 | 99 | |
b3c613f2 CF |
100 | #undef STARTUPINFO |
101 | #undef CreateProcess | |
102 | #undef GetModuleFileNameEx | |
103 | ||
104 | #ifndef __CYGWIN__ | |
105 | # define __PMAX (MAX_PATH + 1) | |
106 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, LPSTR, DWORD); | |
107 | # define STARTUPINFO STARTUPINFOA | |
108 | # define CreateProcess CreateProcessA | |
109 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
110 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
111 | #else | |
112 | # define __PMAX PATH_MAX | |
581e13c1 | 113 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
114 | static CORE_ADDR cygwin_load_start; |
115 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
116 | # define __USEWIDE |
117 | typedef wchar_t cygwin_buf_t; | |
581e13c1 MS |
118 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, |
119 | LPWSTR, DWORD); | |
b3c613f2 CF |
120 | # define STARTUPINFO STARTUPINFOW |
121 | # define CreateProcess CreateProcessW | |
122 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
123 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 124 | #endif |
a244bdca | 125 | |
581e13c1 MS |
126 | static int have_saved_context; /* True if we've saved context from a |
127 | cygwin signal. */ | |
128 | static CONTEXT saved_context; /* Containes the saved context from a | |
129 | cygwin signal. */ | |
a244bdca | 130 | |
0714f9bf SS |
131 | /* If we're not using the old Cygwin header file set, define the |
132 | following which never should have been in the generic Win32 API | |
581e13c1 | 133 | headers in the first place since they were our own invention... */ |
0714f9bf | 134 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 135 | enum |
8e860359 CF |
136 | { |
137 | FLAG_TRACE_BIT = 0x100, | |
138 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
139 | }; | |
0714f9bf SS |
140 | #endif |
141 | ||
5851ab76 JB |
142 | #ifndef CONTEXT_EXTENDED_REGISTERS |
143 | /* This macro is only defined on ia32. It only makes sense on this target, | |
144 | so define it as zero if not already defined. */ | |
145 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
146 | #endif | |
147 | ||
fa4ba8da PM |
148 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
149 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 150 | |
41b4aadc | 151 | static uintptr_t dr[8]; |
87a45c96 CF |
152 | static int debug_registers_changed; |
153 | static int debug_registers_used; | |
16d905e2 CF |
154 | |
155 | static int windows_initialization_done; | |
6537bb24 | 156 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 157 | |
3cee93ac | 158 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 159 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
160 | #ifndef _CYGWIN_SIGNAL_STRING |
161 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
162 | #endif | |
3cee93ac | 163 | |
29fe111d | 164 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 165 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
166 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
167 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
168 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 169 | |
dc05df57 | 170 | static void windows_stop (ptid_t); |
02529b48 | 171 | static int windows_thread_alive (struct target_ops *, ptid_t); |
7d85a9c0 | 172 | static void windows_kill_inferior (struct target_ops *); |
3cee93ac | 173 | |
9bb9e8ad PM |
174 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
175 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 176 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 177 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 178 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 179 | |
a493e3e2 | 180 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
581e13c1 | 181 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 182 | |
3cee93ac | 183 | /* Thread information structure used to track information that is |
6537bb24 | 184 | not available in gdb's thread structure. */ |
3cee93ac | 185 | typedef struct thread_info_struct |
3a4b77d8 JM |
186 | { |
187 | struct thread_info_struct *next; | |
188 | DWORD id; | |
189 | HANDLE h; | |
711e434b | 190 | CORE_ADDR thread_local_base; |
3a4b77d8 | 191 | char *name; |
6537bb24 | 192 | int suspended; |
3ade5333 | 193 | int reload_context; |
3a4b77d8 | 194 | CONTEXT context; |
1e37c281 | 195 | STACKFRAME sf; |
8e860359 CF |
196 | } |
197 | thread_info; | |
1e37c281 | 198 | |
29fe111d | 199 | static thread_info thread_head; |
24e60978 | 200 | |
581e13c1 | 201 | /* The process and thread handles for the above context. */ |
24e60978 | 202 | |
3cee93ac CF |
203 | static DEBUG_EVENT current_event; /* The current debug event from |
204 | WaitForDebugEvent */ | |
205 | static HANDLE current_process_handle; /* Currently executing process */ | |
206 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 207 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 | 208 | |
581e13c1 | 209 | /* Counts of things. */ |
24e60978 SC |
210 | static int exception_count = 0; |
211 | static int event_count = 0; | |
dfe7f3ac | 212 | static int saw_create; |
bf25528d | 213 | static int open_process_used = 0; |
24e60978 | 214 | |
581e13c1 | 215 | /* User options. */ |
24e60978 | 216 | static int new_console = 0; |
10325bc5 | 217 | #ifdef __CYGWIN__ |
09280ddf | 218 | static int cygwin_exceptions = 0; |
10325bc5 | 219 | #endif |
1e37c281 | 220 | static int new_group = 1; |
dfe7f3ac CF |
221 | static int debug_exec = 0; /* show execution */ |
222 | static int debug_events = 0; /* show events from kernel */ | |
223 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 224 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
225 | static int useshell = 0; /* use shell for subprocesses */ |
226 | ||
7e63b4e4 | 227 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 228 | in the windows exception context vector. |
24e60978 | 229 | |
3cee93ac | 230 | It also contains the bit mask needed to load the register in question. |
24e60978 | 231 | |
7e63b4e4 JB |
232 | The contents of this table can only be computed by the units |
233 | that provide CPU-specific support for Windows native debugging. | |
234 | These units should set the table by calling | |
dc05df57 | 235 | windows_set_context_register_offsets. |
7e63b4e4 | 236 | |
24e60978 SC |
237 | One day we could read a reg, we could inspect the context we |
238 | already have loaded, if it doesn't have the bit set that we need, | |
239 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 240 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
241 | write a register, first we have to ensure that the context contains |
242 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 243 | out bit. */ |
24e60978 | 244 | |
7e63b4e4 | 245 | static const int *mappings; |
d3a09475 | 246 | |
d40dc7a8 JB |
247 | /* The function to use in order to determine whether a register is |
248 | a segment register or not. */ | |
249 | static segment_register_p_ftype *segment_register_p; | |
250 | ||
24e60978 | 251 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 252 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
253 | |
254 | struct xlate_exception | |
255 | { | |
256 | int them; | |
2ea28649 | 257 | enum gdb_signal us; |
24e60978 SC |
258 | }; |
259 | ||
24e60978 SC |
260 | static const struct xlate_exception |
261 | xlate[] = | |
262 | { | |
a493e3e2 PA |
263 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
264 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
265 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
266 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
267 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
268 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE}, | |
24e60978 SC |
269 | {-1, -1}}; |
270 | ||
7e63b4e4 JB |
271 | /* Set the MAPPINGS static global to OFFSETS. |
272 | See the description of MAPPINGS for more details. */ | |
273 | ||
274 | void | |
dc05df57 | 275 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
276 | { |
277 | mappings = offsets; | |
278 | } | |
279 | ||
d40dc7a8 JB |
280 | /* See windows-nat.h. */ |
281 | ||
282 | void | |
283 | windows_set_segment_register_p (segment_register_p_ftype *fun) | |
284 | { | |
285 | segment_register_p = fun; | |
286 | } | |
287 | ||
fa4ba8da PM |
288 | static void |
289 | check (BOOL ok, const char *file, int line) | |
290 | { | |
291 | if (!ok) | |
d50a0ce2 CV |
292 | printf_filtered ("error return %s:%d was %u\n", file, line, |
293 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
294 | } |
295 | ||
6537bb24 PA |
296 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
297 | then also retrieve the context for this thread. If GET_CONTEXT is | |
298 | negative, then don't suspend the thread. */ | |
3cee93ac CF |
299 | static thread_info * |
300 | thread_rec (DWORD id, int get_context) | |
24e60978 | 301 | { |
3cee93ac CF |
302 | thread_info *th; |
303 | ||
3a4b77d8 | 304 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
305 | if (th->id == id) |
306 | { | |
6537bb24 | 307 | if (!th->suspended && get_context) |
3cee93ac | 308 | { |
8a892701 | 309 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
310 | { |
311 | if (SuspendThread (th->h) == (DWORD) -1) | |
312 | { | |
313 | DWORD err = GetLastError (); | |
d50a0ce2 CV |
314 | warning (_("SuspendThread failed. (winerr %u)"), |
315 | (unsigned) err); | |
6537bb24 PA |
316 | return NULL; |
317 | } | |
318 | th->suspended = 1; | |
319 | } | |
3cee93ac | 320 | else if (get_context < 0) |
6537bb24 | 321 | th->suspended = -1; |
3ade5333 | 322 | th->reload_context = 1; |
3cee93ac CF |
323 | } |
324 | return th; | |
325 | } | |
326 | ||
327 | return NULL; | |
328 | } | |
329 | ||
2dc38344 | 330 | /* Add a thread to the thread list. */ |
3cee93ac | 331 | static thread_info * |
711e434b | 332 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb) |
3cee93ac CF |
333 | { |
334 | thread_info *th; | |
2dc38344 PA |
335 | DWORD id; |
336 | ||
337 | gdb_assert (ptid_get_tid (ptid) != 0); | |
338 | ||
339 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
340 | |
341 | if ((th = thread_rec (id, FALSE))) | |
342 | return th; | |
343 | ||
3929abe9 | 344 | th = XZALLOC (thread_info); |
3cee93ac CF |
345 | th->id = id; |
346 | th->h = h; | |
711e434b | 347 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
348 | th->next = thread_head.next; |
349 | thread_head.next = th; | |
2dc38344 PA |
350 | add_thread (ptid); |
351 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
352 | if (debug_registers_used) |
353 | { | |
354 | /* Only change the value of the debug registers. */ | |
355 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
356 | CHECK (GetThreadContext (th->h, &th->context)); | |
357 | th->context.Dr0 = dr[0]; | |
358 | th->context.Dr1 = dr[1]; | |
359 | th->context.Dr2 = dr[2]; | |
360 | th->context.Dr3 = dr[3]; | |
6537bb24 | 361 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
362 | th->context.Dr7 = dr[7]; |
363 | CHECK (SetThreadContext (th->h, &th->context)); | |
364 | th->context.ContextFlags = 0; | |
365 | } | |
3cee93ac | 366 | return th; |
24e60978 SC |
367 | } |
368 | ||
3cee93ac | 369 | /* Clear out any old thread list and reintialize it to a |
581e13c1 | 370 | pristine state. */ |
24e60978 | 371 | static void |
dc05df57 | 372 | windows_init_thread_list (void) |
24e60978 | 373 | { |
3cee93ac CF |
374 | thread_info *th = &thread_head; |
375 | ||
dc05df57 | 376 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
377 | init_thread_list (); |
378 | while (th->next != NULL) | |
24e60978 | 379 | { |
3cee93ac CF |
380 | thread_info *here = th->next; |
381 | th->next = here->next; | |
b8c9b27d | 382 | xfree (here); |
24e60978 | 383 | } |
059198c1 | 384 | thread_head.next = NULL; |
3cee93ac CF |
385 | } |
386 | ||
581e13c1 | 387 | /* Delete a thread from the list of threads. */ |
3cee93ac | 388 | static void |
dc05df57 | 389 | windows_delete_thread (ptid_t ptid) |
3cee93ac CF |
390 | { |
391 | thread_info *th; | |
2dc38344 PA |
392 | DWORD id; |
393 | ||
394 | gdb_assert (ptid_get_tid (ptid) != 0); | |
395 | ||
396 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
397 | |
398 | if (info_verbose) | |
2dc38344 PA |
399 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
400 | delete_thread (ptid); | |
3cee93ac CF |
401 | |
402 | for (th = &thread_head; | |
403 | th->next != NULL && th->next->id != id; | |
404 | th = th->next) | |
405 | continue; | |
406 | ||
407 | if (th->next != NULL) | |
24e60978 | 408 | { |
3cee93ac CF |
409 | thread_info *here = th->next; |
410 | th->next = here->next; | |
b8c9b27d | 411 | xfree (here); |
24e60978 SC |
412 | } |
413 | } | |
414 | ||
3cee93ac | 415 | static void |
dc05df57 | 416 | do_windows_fetch_inferior_registers (struct regcache *regcache, int r) |
24e60978 | 417 | { |
1e37c281 | 418 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
419 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
420 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 421 | long l; |
6c7de422 | 422 | |
3ade5333 | 423 | if (!current_thread) |
d6dc8049 | 424 | return; /* Windows sometimes uses a non-existent thread id in its |
581e13c1 | 425 | events. */ |
3ade5333 CF |
426 | |
427 | if (current_thread->reload_context) | |
428 | { | |
cb832706 | 429 | #ifdef __COPY_CONTEXT_SIZE |
a244bdca CF |
430 | if (have_saved_context) |
431 | { | |
581e13c1 MS |
432 | /* Lie about where the program actually is stopped since |
433 | cygwin has informed us that we should consider the signal | |
434 | to have occurred at another location which is stored in | |
435 | "saved_context. */ | |
436 | memcpy (¤t_thread->context, &saved_context, | |
437 | __COPY_CONTEXT_SIZE); | |
a244bdca CF |
438 | have_saved_context = 0; |
439 | } | |
440 | else | |
cb832706 | 441 | #endif |
a244bdca CF |
442 | { |
443 | thread_info *th = current_thread; | |
444 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
445 | GetThreadContext (th->h, &th->context); | |
2b008701 | 446 | /* Copy dr values from that thread. |
581e13c1 MS |
447 | But only if there were not modified since last stop. |
448 | PR gdb/2388 */ | |
88616312 PM |
449 | if (!debug_registers_changed) |
450 | { | |
451 | dr[0] = th->context.Dr0; | |
452 | dr[1] = th->context.Dr1; | |
453 | dr[2] = th->context.Dr2; | |
454 | dr[3] = th->context.Dr3; | |
455 | dr[6] = th->context.Dr6; | |
456 | dr[7] = th->context.Dr7; | |
457 | } | |
a244bdca | 458 | } |
3ade5333 CF |
459 | current_thread->reload_context = 0; |
460 | } | |
461 | ||
20a6ec49 | 462 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 463 | { |
8e860359 | 464 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 465 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 466 | } |
20a6ec49 | 467 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 468 | { |
8e860359 | 469 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 470 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 471 | } |
d40dc7a8 JB |
472 | else if (segment_register_p (r)) |
473 | { | |
474 | /* GDB treats segment registers as 32bit registers, but they are | |
475 | in fact only 16 bits long. Make sure we do not read extra | |
476 | bits from our source buffer. */ | |
477 | l = *((long *) context_offset) & 0xffff; | |
478 | regcache_raw_supply (regcache, r, (char *) &l); | |
479 | } | |
1e37c281 | 480 | else if (r >= 0) |
56be3814 | 481 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 482 | else |
24e60978 | 483 | { |
20a6ec49 | 484 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
dc05df57 | 485 | do_windows_fetch_inferior_registers (regcache, r); |
24e60978 | 486 | } |
3cee93ac CF |
487 | } |
488 | ||
489 | static void | |
28439f5e PA |
490 | windows_fetch_inferior_registers (struct target_ops *ops, |
491 | struct regcache *regcache, int r) | |
3cee93ac | 492 | { |
2dc38344 | 493 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 494 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 495 | thread id in its events. */ |
3ade5333 | 496 | if (current_thread) |
dc05df57 | 497 | do_windows_fetch_inferior_registers (regcache, r); |
3cee93ac CF |
498 | } |
499 | ||
500 | static void | |
dc05df57 | 501 | do_windows_store_inferior_registers (const struct regcache *regcache, int r) |
3cee93ac | 502 | { |
3ade5333 | 503 | if (!current_thread) |
581e13c1 | 504 | /* Windows sometimes uses a non-existent thread id in its events. */; |
3ade5333 | 505 | else if (r >= 0) |
56be3814 | 506 | regcache_raw_collect (regcache, r, |
822c9732 | 507 | ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
508 | else |
509 | { | |
40a6adc1 | 510 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
dc05df57 | 511 | do_windows_store_inferior_registers (regcache, r); |
24e60978 SC |
512 | } |
513 | } | |
514 | ||
581e13c1 | 515 | /* Store a new register value into the current thread context. */ |
3cee93ac | 516 | static void |
28439f5e PA |
517 | windows_store_inferior_registers (struct target_ops *ops, |
518 | struct regcache *regcache, int r) | |
3cee93ac | 519 | { |
2dc38344 | 520 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 521 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 522 | thread id in its events. */ |
3ade5333 | 523 | if (current_thread) |
dc05df57 | 524 | do_windows_store_inferior_registers (regcache, r); |
3cee93ac | 525 | } |
24e60978 | 526 | |
7a9dd1b2 | 527 | /* Get the name of a given module at given base address. If base_address |
33605d39 CF |
528 | is zero return the first loaded module (which is always the name of the |
529 | executable). */ | |
3ee6f623 | 530 | static int |
d3653bf6 | 531 | get_module_name (LPVOID base_address, char *dll_name_ret) |
1e37c281 JM |
532 | { |
533 | DWORD len; | |
534 | MODULEINFO mi; | |
535 | int i; | |
8e860359 | 536 | HMODULE dh_buf[1]; |
581e13c1 MS |
537 | HMODULE *DllHandle = dh_buf; /* Set to temporary storage for |
538 | initial query. */ | |
1e37c281 | 539 | DWORD cbNeeded; |
33605d39 | 540 | #ifdef __CYGWIN__ |
b3c613f2 CF |
541 | cygwin_buf_t pathbuf[__PMAX]; /* Temporary storage prior to converting to |
542 | posix form. __PMAX is always enough | |
d0d0ab16 | 543 | as long as SO_NAME_MAX_PATH_SIZE is defined |
581e13c1 | 544 | as 512. */ |
33605d39 | 545 | #endif |
1e37c281 | 546 | |
1e37c281 | 547 | cbNeeded = 0; |
581e13c1 MS |
548 | /* Find size of buffer needed to handle list of modules loaded in |
549 | inferior. */ | |
2b008701 CF |
550 | if (!EnumProcessModules (current_process_handle, DllHandle, |
551 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1e37c281 JM |
552 | goto failed; |
553 | ||
581e13c1 | 554 | /* Allocate correct amount of space for module list. */ |
8e860359 | 555 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
556 | if (!DllHandle) |
557 | goto failed; | |
558 | ||
581e13c1 | 559 | /* Get the list of modules. */ |
2b008701 | 560 | if (!EnumProcessModules (current_process_handle, DllHandle, cbNeeded, |
33605d39 | 561 | &cbNeeded)) |
1e37c281 JM |
562 | goto failed; |
563 | ||
29fe111d | 564 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 | 565 | { |
581e13c1 | 566 | /* Get information on this module. */ |
2b008701 CF |
567 | if (!GetModuleInformation (current_process_handle, DllHandle[i], |
568 | &mi, sizeof (mi))) | |
8a3fe4f8 | 569 | error (_("Can't get module info")); |
1e37c281 | 570 | |
d3653bf6 | 571 | if (!base_address || mi.lpBaseOfDll == base_address) |
33605d39 | 572 | { |
581e13c1 | 573 | /* Try to find the name of the given module. */ |
d0d0ab16 | 574 | #ifdef __CYGWIN__ |
581e13c1 | 575 | /* Cygwin prefers that the path be in /x/y/z format. */ |
b3c613f2 CF |
576 | len = GetModuleFileNameEx (current_process_handle, |
577 | DllHandle[i], pathbuf, __PMAX); | |
d0d0ab16 | 578 | if (len == 0) |
d50a0ce2 CV |
579 | error (_("Error getting dll name: %u."), |
580 | (unsigned) GetLastError ()); | |
d0d0ab16 | 581 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, dll_name_ret, |
b3c613f2 | 582 | __PMAX) < 0) |
d0d0ab16 CV |
583 | error (_("Error converting dll name to POSIX: %d."), errno); |
584 | #else | |
b3c613f2 CF |
585 | len = GetModuleFileNameEx (current_process_handle, |
586 | DllHandle[i], dll_name_ret, __PMAX); | |
33605d39 | 587 | if (len == 0) |
581e13c1 MS |
588 | error (_("Error getting dll name: %u."), |
589 | (unsigned) GetLastError ()); | |
33605d39 CF |
590 | #endif |
591 | return 1; /* success */ | |
592 | } | |
1e37c281 JM |
593 | } |
594 | ||
595 | failed: | |
596 | dll_name_ret[0] = '\0'; | |
33605d39 | 597 | return 0; /* failure */ |
1e37c281 JM |
598 | } |
599 | ||
450005e7 | 600 | /* Encapsulate the information required in a call to |
581e13c1 | 601 | symbol_file_add_args. */ |
8a892701 CF |
602 | struct safe_symbol_file_add_args |
603 | { | |
604 | char *name; | |
605 | int from_tty; | |
606 | struct section_addr_info *addrs; | |
607 | int mainline; | |
608 | int flags; | |
7c5c87c0 | 609 | struct ui_file *err, *out; |
8a892701 CF |
610 | struct objfile *ret; |
611 | }; | |
612 | ||
581e13c1 | 613 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 614 | struct lm_info |
02e423b9 | 615 | { |
d3653bf6 | 616 | LPVOID load_addr; |
3ee6f623 CF |
617 | }; |
618 | ||
619 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 620 | |
450005e7 | 621 | /* Call symbol_file_add with stderr redirected. We don't care if there |
581e13c1 | 622 | are errors. */ |
8a892701 CF |
623 | static int |
624 | safe_symbol_file_add_stub (void *argv) | |
625 | { | |
3ee6f623 | 626 | #define p ((struct safe_symbol_file_add_args *) argv) |
7eedccfa PP |
627 | const int add_flags = ((p->from_tty ? SYMFILE_VERBOSE : 0) |
628 | | (p->mainline ? SYMFILE_MAINLINE : 0)); | |
629 | p->ret = symbol_file_add (p->name, add_flags, p->addrs, p->flags); | |
8a892701 CF |
630 | return !!p->ret; |
631 | #undef p | |
632 | } | |
633 | ||
581e13c1 | 634 | /* Restore gdb's stderr after calling symbol_file_add. */ |
8a892701 | 635 | static void |
7c5c87c0 | 636 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 637 | { |
8e860359 | 638 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 639 | gdb_flush (gdb_stderr); |
7c5c87c0 | 640 | gdb_flush (gdb_stdout); |
d3ff4a77 | 641 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 642 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 643 | gdb_stderr = sp->err; |
9d3789f7 | 644 | gdb_stdout = sp->out; |
8e860359 | 645 | #undef sp |
8a892701 CF |
646 | } |
647 | ||
581e13c1 | 648 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
649 | static struct objfile * |
650 | safe_symbol_file_add (char *name, int from_tty, | |
651 | struct section_addr_info *addrs, | |
652 | int mainline, int flags) | |
8a892701 CF |
653 | { |
654 | struct safe_symbol_file_add_args p; | |
655 | struct cleanup *cleanup; | |
656 | ||
7c5c87c0 | 657 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 658 | |
7c5c87c0 CF |
659 | p.err = gdb_stderr; |
660 | p.out = gdb_stdout; | |
450005e7 | 661 | gdb_flush (gdb_stderr); |
7c5c87c0 | 662 | gdb_flush (gdb_stdout); |
d3ff4a77 | 663 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 664 | gdb_stdout = ui_file_new (); |
8a892701 CF |
665 | p.name = name; |
666 | p.from_tty = from_tty; | |
667 | p.addrs = addrs; | |
668 | p.mainline = mainline; | |
669 | p.flags = flags; | |
670 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
671 | ||
672 | do_cleanups (cleanup); | |
673 | return p.ret; | |
674 | } | |
675 | ||
de1b3c3d | 676 | static struct so_list * |
dc05df57 | 677 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 678 | { |
3ee6f623 | 679 | struct so_list *so; |
d0d0ab16 CV |
680 | char *p; |
681 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
682 | char buf[__PMAX]; |
683 | char cwd[__PMAX]; | |
3f8ad85b CF |
684 | WIN32_FIND_DATA w32_fd; |
685 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 686 | |
6badb179 CF |
687 | if (h == INVALID_HANDLE_VALUE) |
688 | strcpy (buf, name); | |
689 | else | |
3f8ad85b | 690 | { |
c914e0cc CF |
691 | FindClose (h); |
692 | strcpy (buf, name); | |
693 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
694 | { | |
695 | p = strrchr (buf, '\\'); | |
696 | if (p) | |
697 | p[1] = '\0'; | |
698 | SetCurrentDirectory (buf); | |
699 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
700 | SetCurrentDirectory (cwd); | |
701 | } | |
3f8ad85b | 702 | } |
3ee6f623 CF |
703 | if (strcasecmp (buf, "ntdll.dll") == 0) |
704 | { | |
705 | GetSystemDirectory (buf, sizeof (buf)); | |
706 | strcat (buf, "\\ntdll.dll"); | |
707 | } | |
d0d0ab16 | 708 | #else |
b3c613f2 | 709 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 710 | |
b3c613f2 | 711 | buf[0] = 0; |
d0d0ab16 CV |
712 | if (access (name, F_OK) != 0) |
713 | { | |
714 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 715 | #ifdef __USEWIDE |
d0d0ab16 CV |
716 | { |
717 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
718 | wcscat (buf, L"\\ntdll.dll"); | |
719 | } | |
b3c613f2 CF |
720 | #else |
721 | { | |
722 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
723 | strcat (buf, "\\ntdll.dll"); | |
724 | } | |
725 | #endif | |
d0d0ab16 CV |
726 | } |
727 | #endif | |
3929abe9 | 728 | so = XZALLOC (struct so_list); |
3ee6f623 CF |
729 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); |
730 | so->lm_info->load_addr = load_addr; | |
de1b3c3d | 731 | strcpy (so->so_original_name, name); |
10325bc5 PA |
732 | #ifndef __CYGWIN__ |
733 | strcpy (so->so_name, buf); | |
734 | #else | |
d0d0ab16 CV |
735 | if (buf[0]) |
736 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
737 | SO_NAME_MAX_PATH_SIZE); | |
738 | else | |
739 | { | |
60c5c021 | 740 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
741 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
742 | { | |
743 | strcpy (so->so_name, rname); | |
744 | free (rname); | |
745 | } | |
746 | else | |
747 | error (_("dll path too long")); | |
748 | } | |
de1b3c3d PA |
749 | /* Record cygwin1.dll .text start/end. */ |
750 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
751 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
752 | { | |
753 | bfd *abfd; | |
754 | asection *text = NULL; | |
755 | CORE_ADDR text_vma; | |
8e860359 | 756 | |
1c00ec6b | 757 | abfd = gdb_bfd_open (so->so_name, "pei-i386", -1); |
a244bdca | 758 | |
de1b3c3d PA |
759 | if (!abfd) |
760 | return so; | |
761 | ||
762 | if (bfd_check_format (abfd, bfd_object)) | |
763 | text = bfd_get_section_by_name (abfd, ".text"); | |
764 | ||
765 | if (!text) | |
766 | { | |
cbb099e8 | 767 | gdb_bfd_unref (abfd); |
de1b3c3d PA |
768 | return so; |
769 | } | |
770 | ||
7a9dd1b2 | 771 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 772 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
773 | file header and the section alignment. */ |
774 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
775 | load_addr + 0x1000); | |
dc05df57 | 776 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); |
de1b3c3d | 777 | |
cbb099e8 | 778 | gdb_bfd_unref (abfd); |
de1b3c3d | 779 | } |
10325bc5 | 780 | #endif |
de1b3c3d PA |
781 | |
782 | return so; | |
8e860359 CF |
783 | } |
784 | ||
3ee6f623 | 785 | static char * |
dfe7f3ac CF |
786 | get_image_name (HANDLE h, void *address, int unicode) |
787 | { | |
d0d0ab16 | 788 | #ifdef __CYGWIN__ |
b3c613f2 | 789 | static char buf[__PMAX]; |
d0d0ab16 | 790 | #else |
b3c613f2 | 791 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 792 | #endif |
dfe7f3ac CF |
793 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
794 | char *address_ptr; | |
795 | int len = 0; | |
796 | char b[2]; | |
5732a500 | 797 | SIZE_T done; |
dfe7f3ac CF |
798 | |
799 | /* Attempt to read the name of the dll that was detected. | |
800 | This is documented to work only when actively debugging | |
581e13c1 | 801 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
802 | if (address == NULL) |
803 | return NULL; | |
804 | ||
dfe7f3ac | 805 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
806 | address isn't null. */ |
807 | if (!ReadProcessMemory (h, address, &address_ptr, | |
808 | sizeof (address_ptr), &done) | |
6f17862b | 809 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
810 | return NULL; |
811 | ||
581e13c1 | 812 | /* Find the length of the string. */ |
6f17862b CF |
813 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
814 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
815 | continue; | |
dfe7f3ac CF |
816 | |
817 | if (!unicode) | |
818 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
819 | else | |
820 | { | |
821 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
822 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
823 | &done); | |
d0d0ab16 | 824 | #ifdef __CYGWIN__ |
b3c613f2 | 825 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
826 | #else |
827 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
828 | 0, 0); | |
829 | #endif | |
dfe7f3ac CF |
830 | } |
831 | ||
832 | return buf; | |
833 | } | |
834 | ||
24e60978 SC |
835 | /* Wait for child to do something. Return pid of child, or -1 in case |
836 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 837 | static int |
0a65a603 | 838 | handle_load_dll (void *dummy) |
24e60978 | 839 | { |
3a4b77d8 | 840 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
b3c613f2 | 841 | char dll_buf[__PMAX]; |
450005e7 | 842 | char *dll_name = NULL; |
3cee93ac | 843 | |
3a4b77d8 | 844 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 845 | |
d3653bf6 | 846 | if (!get_module_name (event->lpBaseOfDll, dll_buf)) |
8e860359 | 847 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 848 | |
1e37c281 | 849 | dll_name = dll_buf; |
24e60978 | 850 | |
dfe7f3ac | 851 | if (*dll_name == '\0') |
de1b3c3d PA |
852 | dll_name = get_image_name (current_process_handle, |
853 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
854 | if (!dll_name) |
855 | return 1; | |
856 | ||
dc05df57 | 857 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 858 | solib_end = solib_end->next; |
450005e7 | 859 | |
a74ce742 PM |
860 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
861 | host_address_to_string (solib_end->lm_info->load_addr))); | |
7488902c | 862 | |
450005e7 CF |
863 | return 1; |
864 | } | |
865 | ||
3ee6f623 | 866 | static void |
dc05df57 | 867 | windows_free_so (struct so_list *so) |
3ee6f623 | 868 | { |
3ee6f623 CF |
869 | if (so->lm_info) |
870 | xfree (so->lm_info); | |
de1b3c3d | 871 | xfree (so); |
3cb8e7f6 CF |
872 | } |
873 | ||
d3ff4a77 | 874 | static int |
0a65a603 | 875 | handle_unload_dll (void *dummy) |
d3ff4a77 | 876 | { |
d3653bf6 | 877 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 878 | struct so_list *so; |
d3ff4a77 CF |
879 | |
880 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 881 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 882 | { |
3ee6f623 | 883 | struct so_list *sodel = so->next; |
d3ff4a77 CF |
884 | so->next = sodel->next; |
885 | if (!so->next) | |
886 | solib_end = so; | |
7488902c PM |
887 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
888 | ||
dc05df57 | 889 | windows_free_so (sodel); |
3929abe9 | 890 | solib_add (NULL, 0, NULL, auto_solib_add); |
d3ff4a77 CF |
891 | return 1; |
892 | } | |
3929abe9 | 893 | |
ecc13e53 JB |
894 | /* We did not find any DLL that was previously loaded at this address, |
895 | so register a complaint. We do not report an error, because we have | |
896 | observed that this may be happening under some circumstances. For | |
897 | instance, running 32bit applications on x64 Windows causes us to receive | |
898 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
899 | events are apparently caused by the WOW layer, the interface between | |
900 | 32bit and 64bit worlds). */ | |
901 | complaint (&symfile_complaints, _("dll starting at %s not found."), | |
902 | host_address_to_string (lpBaseOfDll)); | |
d3ff4a77 CF |
903 | |
904 | return 0; | |
905 | } | |
906 | ||
581e13c1 | 907 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 908 | static void |
dc05df57 | 909 | windows_clear_solib (void) |
450005e7 | 910 | { |
450005e7 CF |
911 | solib_start.next = NULL; |
912 | solib_end = &solib_start; | |
450005e7 | 913 | } |
295732ea | 914 | |
581e13c1 | 915 | /* Load DLL symbol info. */ |
d603d4b3 | 916 | static void |
7470a420 | 917 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 918 | { |
8e860359 | 919 | int n; |
450005e7 | 920 | dont_repeat (); |
8e860359 | 921 | |
450005e7 | 922 | if (args == NULL) |
8a3fe4f8 | 923 | error (_("dll-symbols requires a file name")); |
450005e7 | 924 | |
8e860359 CF |
925 | n = strlen (args); |
926 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
927 | { | |
928 | char *newargs = (char *) alloca (n + 4 + 1); | |
929 | strcpy (newargs, args); | |
930 | strcat (newargs, ".dll"); | |
931 | args = newargs; | |
932 | } | |
933 | ||
7470a420 | 934 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 935 | } |
450005e7 | 936 | |
3cee93ac CF |
937 | /* Handle DEBUG_STRING output from child process. |
938 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 939 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
940 | static int |
941 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
942 | { | |
a244bdca CF |
943 | char *s = NULL; |
944 | int retval = 0; | |
3cee93ac CF |
945 | |
946 | if (!target_read_string | |
2c647436 PM |
947 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
948 | &s, 1024, 0) | |
3cee93ac | 949 | || !s || !*s) |
a244bdca | 950 | /* nothing to do */; |
581e13c1 MS |
951 | else if (strncmp (s, _CYGWIN_SIGNAL_STRING, |
952 | sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0) | |
3cee93ac | 953 | { |
10325bc5 | 954 | #ifdef __CYGWIN__ |
d3a09475 | 955 | if (strncmp (s, "cYg", 3) != 0) |
10325bc5 | 956 | #endif |
8a3fe4f8 | 957 | warning (("%s"), s); |
3cee93ac | 958 | } |
cb832706 | 959 | #ifdef __COPY_CONTEXT_SIZE |
d3a09475 | 960 | else |
3cee93ac | 961 | { |
581e13c1 MS |
962 | /* Got a cygwin signal marker. A cygwin signal is followed by |
963 | the signal number itself and then optionally followed by the | |
964 | thread id and address to saved context within the DLL. If | |
965 | these are supplied, then the given thread is assumed to have | |
966 | issued the signal and the context from the thread is assumed | |
967 | to be stored at the given address in the inferior. Tell gdb | |
968 | to treat this like a real signal. */ | |
3cee93ac | 969 | char *p; |
3929abe9 | 970 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
2ea28649 | 971 | int gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 972 | |
0714f9bf SS |
973 | ourstatus->value.sig = gotasig; |
974 | if (gotasig) | |
a244bdca CF |
975 | { |
976 | LPCVOID x; | |
2c15ef43 | 977 | SIZE_T n; |
c62fa0e2 | 978 | |
a244bdca CF |
979 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
980 | retval = strtoul (p, &p, 0); | |
981 | if (!retval) | |
982 | retval = main_thread_id; | |
40653b35 | 983 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 984 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
985 | &saved_context, |
986 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
987 | && n == __COPY_CONTEXT_SIZE) |
988 | have_saved_context = 1; | |
989 | current_event.dwThreadId = retval; | |
990 | } | |
3cee93ac | 991 | } |
cb832706 | 992 | #endif |
3cee93ac | 993 | |
a244bdca CF |
994 | if (s) |
995 | xfree (s); | |
996 | return retval; | |
3cee93ac | 997 | } |
24e60978 | 998 | |
c1748f97 PM |
999 | static int |
1000 | display_selector (HANDLE thread, DWORD sel) | |
1001 | { | |
1002 | LDT_ENTRY info; | |
1003 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
1004 | { | |
1005 | int base, limit; | |
d50a0ce2 | 1006 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 1007 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
1008 | { |
1009 | puts_filtered ("Segment not present\n"); | |
1010 | return 0; | |
1011 | } | |
c1748f97 PM |
1012 | base = (info.HighWord.Bits.BaseHi << 24) + |
1013 | (info.HighWord.Bits.BaseMid << 16) | |
1014 | + info.BaseLow; | |
1015 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
1016 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 1017 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
1018 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
1019 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 1020 | puts_filtered(" 32-bit "); |
c1748f97 | 1021 | else |
baa93fa6 | 1022 | puts_filtered(" 16-bit "); |
c1748f97 PM |
1023 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1024 | { | |
1025 | case 0: | |
baa93fa6 CF |
1026 | puts_filtered ("Data (Read-Only, Exp-up"); |
1027 | break; | |
c1748f97 | 1028 | case 1: |
baa93fa6 CF |
1029 | puts_filtered ("Data (Read/Write, Exp-up"); |
1030 | break; | |
c1748f97 | 1031 | case 2: |
baa93fa6 CF |
1032 | puts_filtered ("Unused segment ("); |
1033 | break; | |
c1748f97 | 1034 | case 3: |
baa93fa6 CF |
1035 | puts_filtered ("Data (Read/Write, Exp-down"); |
1036 | break; | |
c1748f97 | 1037 | case 4: |
baa93fa6 CF |
1038 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1039 | break; | |
c1748f97 | 1040 | case 5: |
baa93fa6 | 1041 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1042 | break; |
1043 | case 6: | |
baa93fa6 | 1044 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1045 | break; |
1046 | case 7: | |
baa93fa6 | 1047 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1048 | break; |
1049 | default: | |
1050 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
1051 | } | |
1052 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1053 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1054 | puts_filtered (")\n"); |
1055 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1056 | puts_filtered("System selector "); | |
1057 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
1058 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 1059 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1060 | else |
1061 | puts_filtered ("Byte granular.\n"); | |
1062 | return 1; | |
1063 | } | |
1064 | else | |
1065 | { | |
5572ce1f PM |
1066 | DWORD err = GetLastError (); |
1067 | if (err == ERROR_NOT_SUPPORTED) | |
1068 | printf_filtered ("Function not supported\n"); | |
1069 | else | |
d50a0ce2 | 1070 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1071 | return 0; |
1072 | } | |
1073 | } | |
1074 | ||
1075 | static void | |
1076 | display_selectors (char * args, int from_tty) | |
1077 | { | |
1078 | if (!current_thread) | |
1079 | { | |
1080 | puts_filtered ("Impossible to display selectors now.\n"); | |
1081 | return; | |
1082 | } | |
1083 | if (!args) | |
1084 | { | |
1085 | ||
1086 | puts_filtered ("Selector $cs\n"); | |
1087 | display_selector (current_thread->h, | |
baa93fa6 | 1088 | current_thread->context.SegCs); |
c1748f97 PM |
1089 | puts_filtered ("Selector $ds\n"); |
1090 | display_selector (current_thread->h, | |
baa93fa6 | 1091 | current_thread->context.SegDs); |
c1748f97 PM |
1092 | puts_filtered ("Selector $es\n"); |
1093 | display_selector (current_thread->h, | |
baa93fa6 | 1094 | current_thread->context.SegEs); |
c1748f97 PM |
1095 | puts_filtered ("Selector $ss\n"); |
1096 | display_selector (current_thread->h, | |
baa93fa6 | 1097 | current_thread->context.SegSs); |
c1748f97 PM |
1098 | puts_filtered ("Selector $fs\n"); |
1099 | display_selector (current_thread->h, | |
1100 | current_thread->context.SegFs); | |
1101 | puts_filtered ("Selector $gs\n"); | |
1102 | display_selector (current_thread->h, | |
baa93fa6 | 1103 | current_thread->context.SegGs); |
c1748f97 PM |
1104 | } |
1105 | else | |
1106 | { | |
1107 | int sel; | |
1108 | sel = parse_and_eval_long (args); | |
1109 | printf_filtered ("Selector \"%s\"\n",args); | |
1110 | display_selector (current_thread->h, sel); | |
1111 | } | |
1112 | } | |
1113 | ||
7393af7c | 1114 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1115 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1116 | host_address_to_string (\ | |
1117 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1118 | |
36339ecd | 1119 | static int |
450005e7 | 1120 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1121 | { |
3cee93ac | 1122 | thread_info *th; |
29fe111d | 1123 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 1124 | |
29fe111d | 1125 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1126 | |
581e13c1 | 1127 | /* Record the context of the current thread. */ |
3cee93ac | 1128 | th = thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1129 | |
29fe111d | 1130 | switch (code) |
24e60978 | 1131 | { |
1ef980b9 | 1132 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c | 1133 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
a493e3e2 | 1134 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
10325bc5 | 1135 | #ifdef __CYGWIN__ |
8da8e0b3 | 1136 | { |
581e13c1 MS |
1137 | /* See if the access violation happened within the cygwin DLL |
1138 | itself. Cygwin uses a kind of exception handling to deal | |
1139 | with passed-in invalid addresses. gdb should not treat | |
1140 | these as real SEGVs since they will be silently handled by | |
1141 | cygwin. A real SEGV will (theoretically) be caught by | |
1142 | cygwin later in the process and will be sent as a | |
1143 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1144 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1145 | const char *fn; |
581e13c1 MS |
1146 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) |
1147 | current_event.u.Exception.ExceptionRecord.ExceptionAddress; | |
1148 | ||
1149 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1150 | && addr < cygwin_load_end)) | |
a244bdca | 1151 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
581e13c1 MS |
1152 | && strncmp (fn, "KERNEL32!IsBad", |
1153 | strlen ("KERNEL32!IsBad")) == 0)) | |
8da8e0b3 CF |
1154 | return 0; |
1155 | } | |
10325bc5 | 1156 | #endif |
7393af7c PM |
1157 | break; |
1158 | case STATUS_STACK_OVERFLOW: | |
1159 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
a493e3e2 | 1160 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
7393af7c PM |
1161 | break; |
1162 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1163 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
a493e3e2 | 1164 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1165 | break; |
1166 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1167 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
a493e3e2 | 1168 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1169 | break; |
1170 | case STATUS_FLOAT_INEXACT_RESULT: | |
1171 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
a493e3e2 | 1172 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1173 | break; |
1174 | case STATUS_FLOAT_INVALID_OPERATION: | |
1175 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
a493e3e2 | 1176 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1177 | break; |
1178 | case STATUS_FLOAT_OVERFLOW: | |
1179 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
a493e3e2 | 1180 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1181 | break; |
1182 | case STATUS_FLOAT_STACK_CHECK: | |
1183 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
a493e3e2 | 1184 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 | 1185 | break; |
3b7c8b74 | 1186 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c | 1187 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
a493e3e2 | 1188 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1189 | break; |
3b7c8b74 | 1190 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c | 1191 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
a493e3e2 | 1192 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1193 | break; |
3b7c8b74 | 1194 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1195 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
a493e3e2 | 1196 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
3b7c8b74 | 1197 | break; |
7393af7c PM |
1198 | case STATUS_INTEGER_OVERFLOW: |
1199 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
a493e3e2 | 1200 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 SC |
1201 | break; |
1202 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1203 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
a493e3e2 | 1204 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 SC |
1205 | break; |
1206 | case DBG_CONTROL_C: | |
7393af7c | 1207 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
a493e3e2 | 1208 | ourstatus->value.sig = GDB_SIGNAL_INT; |
5b421780 PM |
1209 | break; |
1210 | case DBG_CONTROL_BREAK: | |
7393af7c | 1211 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
a493e3e2 | 1212 | ourstatus->value.sig = GDB_SIGNAL_INT; |
1ef980b9 SC |
1213 | break; |
1214 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1215 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
a493e3e2 | 1216 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 | 1217 | break; |
8227c82d | 1218 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c | 1219 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
a493e3e2 | 1220 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1221 | break; |
1222 | case EXCEPTION_PRIV_INSTRUCTION: | |
1223 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
a493e3e2 | 1224 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1225 | break; |
1226 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1227 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
a493e3e2 | 1228 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
8227c82d | 1229 | break; |
1ef980b9 | 1230 | default: |
581e13c1 | 1231 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1232 | if (current_event.u.Exception.dwFirstChance) |
a244bdca | 1233 | return -1; |
d50a0ce2 CV |
1234 | printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n", |
1235 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
a74ce742 PM |
1236 | host_address_to_string ( |
1237 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
a493e3e2 | 1238 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
1ef980b9 | 1239 | break; |
24e60978 | 1240 | } |
24e60978 | 1241 | exception_count++; |
7393af7c | 1242 | last_sig = ourstatus->value.sig; |
36339ecd | 1243 | return 1; |
24e60978 SC |
1244 | } |
1245 | ||
3cee93ac | 1246 | /* Resume all artificially suspended threads if we are continuing |
581e13c1 | 1247 | execution. */ |
3cee93ac | 1248 | static BOOL |
dc05df57 | 1249 | windows_continue (DWORD continue_status, int id) |
3cee93ac CF |
1250 | { |
1251 | int i; | |
1252 | thread_info *th; | |
1253 | BOOL res; | |
1254 | ||
d50a0ce2 CV |
1255 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%x, %s);\n", |
1256 | (unsigned) current_event.dwProcessId, | |
1257 | (unsigned) current_event.dwThreadId, | |
dfe7f3ac | 1258 | continue_status == DBG_CONTINUE ? |
7393af7c | 1259 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1260 | |
1261 | for (th = &thread_head; (th = th->next) != NULL;) | |
1262 | if ((id == -1 || id == (int) th->id) | |
1263 | && th->suspended) | |
1264 | { | |
1265 | if (debug_registers_changed) | |
1266 | { | |
1267 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1268 | th->context.Dr0 = dr[0]; | |
1269 | th->context.Dr1 = dr[1]; | |
1270 | th->context.Dr2 = dr[2]; | |
1271 | th->context.Dr3 = dr[3]; | |
1272 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1273 | th->context.Dr7 = dr[7]; | |
1274 | } | |
1275 | if (th->context.ContextFlags) | |
1276 | { | |
1277 | CHECK (SetThreadContext (th->h, &th->context)); | |
1278 | th->context.ContextFlags = 0; | |
1279 | } | |
1280 | if (th->suspended > 0) | |
1281 | (void) ResumeThread (th->h); | |
1282 | th->suspended = 0; | |
1283 | } | |
1284 | ||
0714f9bf SS |
1285 | res = ContinueDebugEvent (current_event.dwProcessId, |
1286 | current_event.dwThreadId, | |
1287 | continue_status); | |
3cee93ac | 1288 | |
fa4ba8da | 1289 | debug_registers_changed = 0; |
3cee93ac CF |
1290 | return res; |
1291 | } | |
1292 | ||
d6dc8049 CF |
1293 | /* Called in pathological case where Windows fails to send a |
1294 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1295 | static DWORD |
5439edaa | 1296 | fake_create_process (void) |
3ade5333 CF |
1297 | { |
1298 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1299 | current_event.dwProcessId); | |
bf25528d CF |
1300 | if (current_process_handle != NULL) |
1301 | open_process_used = 1; | |
1302 | else | |
1303 | { | |
d50a0ce2 CV |
1304 | error (_("OpenProcess call failed, GetLastError = %u"), |
1305 | (unsigned) GetLastError ()); | |
bf25528d CF |
1306 | /* We can not debug anything in that case. */ |
1307 | } | |
3ade5333 | 1308 | main_thread_id = current_event.dwThreadId; |
711e434b PM |
1309 | current_thread = windows_add_thread ( |
1310 | ptid_build (current_event.dwProcessId, 0, | |
1311 | current_event.dwThreadId), | |
1312 | current_event.u.CreateThread.hThread, | |
1313 | current_event.u.CreateThread.lpThreadLocalBase); | |
3ade5333 CF |
1314 | return main_thread_id; |
1315 | } | |
1316 | ||
a244bdca | 1317 | static void |
28439f5e | 1318 | windows_resume (struct target_ops *ops, |
2ea28649 | 1319 | ptid_t ptid, int step, enum gdb_signal sig) |
a244bdca CF |
1320 | { |
1321 | thread_info *th; | |
1322 | DWORD continue_status = DBG_CONTINUE; | |
1323 | ||
2dc38344 PA |
1324 | /* A specific PTID means `step only this thread id'. */ |
1325 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1326 | ||
1327 | /* If we're continuing all threads, it's the current inferior that | |
1328 | should be handled specially. */ | |
1329 | if (resume_all) | |
1330 | ptid = inferior_ptid; | |
a244bdca | 1331 | |
a493e3e2 | 1332 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1333 | { |
1334 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1335 | { | |
1336 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1337 | } | |
1338 | else if (sig == last_sig) | |
1339 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1340 | else | |
1341 | #if 0 | |
1342 | /* This code does not seem to work, because | |
1343 | the kernel does probably not consider changes in the ExceptionRecord | |
1344 | structure when passing the exception to the inferior. | |
1345 | Note that this seems possible in the exception handler itself. */ | |
1346 | { | |
1347 | int i; | |
1348 | for (i = 0; xlate[i].them != -1; i++) | |
1349 | if (xlate[i].us == sig) | |
1350 | { | |
581e13c1 MS |
1351 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
1352 | = xlate[i].them; | |
a244bdca CF |
1353 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1354 | break; | |
1355 | } | |
1356 | if (continue_status == DBG_CONTINUE) | |
1357 | { | |
1358 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1359 | } | |
1360 | } | |
1361 | #endif | |
1362 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", | |
1363 | last_sig)); | |
1364 | } | |
1365 | ||
a493e3e2 | 1366 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1367 | |
dc05df57 | 1368 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1369 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca | 1370 | |
581e13c1 | 1371 | /* Get context for currently selected thread. */ |
2dc38344 | 1372 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1373 | if (th) |
1374 | { | |
1375 | if (step) | |
1376 | { | |
581e13c1 | 1377 | /* Single step by setting t bit. */ |
a97b0ac8 UW |
1378 | struct regcache *regcache = get_current_regcache (); |
1379 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1380 | windows_fetch_inferior_registers (ops, regcache, | |
1381 | gdbarch_ps_regnum (gdbarch)); | |
a244bdca CF |
1382 | th->context.EFlags |= FLAG_TRACE_BIT; |
1383 | } | |
1384 | ||
1385 | if (th->context.ContextFlags) | |
1386 | { | |
1387 | if (debug_registers_changed) | |
1388 | { | |
1389 | th->context.Dr0 = dr[0]; | |
1390 | th->context.Dr1 = dr[1]; | |
1391 | th->context.Dr2 = dr[2]; | |
1392 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1393 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1394 | th->context.Dr7 = dr[7]; |
1395 | } | |
1396 | CHECK (SetThreadContext (th->h, &th->context)); | |
1397 | th->context.ContextFlags = 0; | |
1398 | } | |
1399 | } | |
1400 | ||
1401 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1402 | Otherwise complain. */ |
a244bdca | 1403 | |
2dc38344 | 1404 | if (resume_all) |
dc05df57 | 1405 | windows_continue (continue_status, -1); |
2dc38344 | 1406 | else |
dc05df57 | 1407 | windows_continue (continue_status, ptid_get_tid (ptid)); |
a244bdca CF |
1408 | } |
1409 | ||
695de547 CF |
1410 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1411 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1412 | Note that this function is not available prior to Windows XP. In this case | |
1413 | we emit a warning. */ | |
d603d4b3 | 1414 | static BOOL WINAPI |
695de547 CF |
1415 | ctrl_c_handler (DWORD event_type) |
1416 | { | |
1417 | const int attach_flag = current_inferior ()->attach_flag; | |
1418 | ||
bb0613a5 PM |
1419 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1420 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1421 | return FALSE; |
1422 | ||
1423 | /* If the inferior and the debugger share the same console, do nothing as | |
1424 | the inferior has also received the Ctrl-C event. */ | |
1425 | if (!new_console && !attach_flag) | |
1426 | return TRUE; | |
1427 | ||
1428 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1429 | warning (_("Could not interrupt program. " |
1430 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1431 | |
1432 | /* Return true to tell that Ctrl-C has been handled. */ | |
1433 | return TRUE; | |
1434 | } | |
1435 | ||
8a892701 | 1436 | /* Get the next event from the child. Return 1 if the event requires |
695de547 | 1437 | handling by WFI (or whatever). */ |
1e37c281 | 1438 | static int |
28439f5e PA |
1439 | get_windows_debug_event (struct target_ops *ops, |
1440 | int pid, struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1441 | { |
1442 | BOOL debug_event; | |
8a892701 | 1443 | DWORD continue_status, event_code; |
87a45c96 | 1444 | thread_info *th; |
8a892701 | 1445 | static thread_info dummy_thread_info; |
450005e7 | 1446 | int retval = 0; |
1e37c281 | 1447 | |
a493e3e2 | 1448 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1449 | |
8a892701 | 1450 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1451 | goto out; |
1e37c281 JM |
1452 | |
1453 | event_count++; | |
1454 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1455 | |
8a892701 | 1456 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1457 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1458 | th = NULL; |
a244bdca | 1459 | have_saved_context = 0; |
8a892701 CF |
1460 | |
1461 | switch (event_code) | |
1e37c281 JM |
1462 | { |
1463 | case CREATE_THREAD_DEBUG_EVENT: | |
d50a0ce2 | 1464 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=%x code=%s)\n", |
8a892701 CF |
1465 | (unsigned) current_event.dwProcessId, |
1466 | (unsigned) current_event.dwThreadId, | |
1467 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1468 | if (saw_create != 1) |
3ade5333 | 1469 | { |
181e7f93 PA |
1470 | struct inferior *inf; |
1471 | inf = find_inferior_pid (current_event.dwProcessId); | |
1472 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1473 | { |
d6dc8049 CF |
1474 | /* Kludge around a Windows bug where first event is a create |
1475 | thread event. Caused when attached process does not have | |
581e13c1 | 1476 | a main thread. */ |
3a3e9ee3 | 1477 | retval = fake_create_process (); |
181e7f93 PA |
1478 | if (retval) |
1479 | saw_create++; | |
3ade5333 CF |
1480 | } |
1481 | break; | |
1482 | } | |
581e13c1 | 1483 | /* Record the existence of this thread. */ |
450005e7 | 1484 | retval = current_event.dwThreadId; |
dc05df57 | 1485 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1486 | current_event.dwThreadId), |
711e434b PM |
1487 | current_event.u.CreateThread.hThread, |
1488 | current_event.u.CreateThread.lpThreadLocalBase); | |
1489 | ||
1e37c281 JM |
1490 | break; |
1491 | ||
1492 | case EXIT_THREAD_DEBUG_EVENT: | |
d50a0ce2 | 1493 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=%x code=%s)\n", |
8a892701 CF |
1494 | (unsigned) current_event.dwProcessId, |
1495 | (unsigned) current_event.dwThreadId, | |
1496 | "EXIT_THREAD_DEBUG_EVENT")); | |
b3c613f2 | 1497 | |
87a45c96 CF |
1498 | if (current_event.dwThreadId != main_thread_id) |
1499 | { | |
dc05df57 | 1500 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1501 | current_event.dwThreadId)); |
87a45c96 CF |
1502 | th = &dummy_thread_info; |
1503 | } | |
1e37c281 JM |
1504 | break; |
1505 | ||
1506 | case CREATE_PROCESS_DEBUG_EVENT: | |
d50a0ce2 | 1507 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=%x code=%s)\n", |
8a892701 CF |
1508 | (unsigned) current_event.dwProcessId, |
1509 | (unsigned) current_event.dwThreadId, | |
1510 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1511 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1512 | if (++saw_create != 1) |
bf25528d | 1513 | break; |
1e37c281 | 1514 | |
dfe7f3ac | 1515 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1516 | if (main_thread_id) |
695de547 CF |
1517 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
1518 | main_thread_id)); | |
9d3789f7 | 1519 | main_thread_id = current_event.dwThreadId; |
581e13c1 | 1520 | /* Add the main thread. */ |
dc05df57 | 1521 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
695de547 | 1522 | current_event.dwThreadId), |
711e434b PM |
1523 | current_event.u.CreateProcessInfo.hThread, |
1524 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
3a3e9ee3 | 1525 | retval = current_event.dwThreadId; |
1e37c281 JM |
1526 | break; |
1527 | ||
1528 | case EXIT_PROCESS_DEBUG_EVENT: | |
d50a0ce2 | 1529 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=%x code=%s)\n", |
8a892701 CF |
1530 | (unsigned) current_event.dwProcessId, |
1531 | (unsigned) current_event.dwThreadId, | |
1532 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1533 | if (!windows_initialization_done) |
1534 | { | |
1535 | target_terminal_ours (); | |
1536 | target_mourn_inferior (); | |
1537 | error (_("During startup program exited with code 0x%x."), | |
1538 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1539 | } | |
1540 | else if (saw_create == 1) | |
1541 | { | |
1542 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1543 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1544 | retval = main_thread_id; | |
1545 | } | |
8a892701 | 1546 | break; |
1e37c281 JM |
1547 | |
1548 | case LOAD_DLL_DEBUG_EVENT: | |
d50a0ce2 | 1549 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=%x code=%s)\n", |
8a892701 CF |
1550 | (unsigned) current_event.dwProcessId, |
1551 | (unsigned) current_event.dwThreadId, | |
1552 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1553 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1554 | if (saw_create != 1) |
1555 | break; | |
8a892701 | 1556 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1557 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1558 | ourstatus->value.integer = 0; | |
9d3789f7 | 1559 | retval = main_thread_id; |
1e37c281 JM |
1560 | break; |
1561 | ||
1562 | case UNLOAD_DLL_DEBUG_EVENT: | |
d50a0ce2 | 1563 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=%x code=%s)\n", |
8a892701 CF |
1564 | (unsigned) current_event.dwProcessId, |
1565 | (unsigned) current_event.dwThreadId, | |
1566 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1567 | if (saw_create != 1) |
1568 | break; | |
d3ff4a77 | 1569 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1570 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1571 | ourstatus->value.integer = 0; | |
1572 | retval = main_thread_id; | |
d3ff4a77 | 1573 | break; |
1e37c281 JM |
1574 | |
1575 | case EXCEPTION_DEBUG_EVENT: | |
d50a0ce2 | 1576 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=%x code=%s)\n", |
8a892701 CF |
1577 | (unsigned) current_event.dwProcessId, |
1578 | (unsigned) current_event.dwThreadId, | |
1579 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1580 | if (saw_create != 1) |
1581 | break; | |
a244bdca CF |
1582 | switch (handle_exception (ourstatus)) |
1583 | { | |
1584 | case 0: | |
1585 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1586 | break; | |
1587 | case 1: | |
1588 | retval = current_event.dwThreadId; | |
1589 | break; | |
1590 | case -1: | |
1591 | last_sig = 1; | |
1592 | continue_status = -1; | |
1593 | break; | |
1594 | } | |
1e37c281 JM |
1595 | break; |
1596 | ||
581e13c1 | 1597 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
d50a0ce2 | 1598 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=%x code=%s)\n", |
8a892701 CF |
1599 | (unsigned) current_event.dwProcessId, |
1600 | (unsigned) current_event.dwThreadId, | |
1601 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1602 | if (saw_create != 1) |
1603 | break; | |
a244bdca | 1604 | retval = handle_output_debug_string (ourstatus); |
1e37c281 | 1605 | break; |
9d3789f7 | 1606 | |
1e37c281 | 1607 | default: |
dfe7f3ac CF |
1608 | if (saw_create != 1) |
1609 | break; | |
d50a0ce2 CV |
1610 | printf_unfiltered ("gdb: kernel event for pid=%u tid=%x\n", |
1611 | (unsigned) current_event.dwProcessId, | |
1612 | (unsigned) current_event.dwThreadId); | |
1613 | printf_unfiltered (" unknown event code %u\n", | |
1614 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1615 | break; |
1616 | } | |
1617 | ||
dfe7f3ac | 1618 | if (!retval || saw_create != 1) |
a244bdca CF |
1619 | { |
1620 | if (continue_status == -1) | |
02529b48 | 1621 | windows_resume (ops, minus_one_ptid, 0, 1); |
a244bdca | 1622 | else |
dc05df57 | 1623 | CHECK (windows_continue (continue_status, -1)); |
a244bdca | 1624 | } |
450005e7 | 1625 | else |
9d3789f7 | 1626 | { |
2dc38344 PA |
1627 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
1628 | retval); | |
3ade5333 | 1629 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1630 | } |
1e37c281 JM |
1631 | |
1632 | out: | |
450005e7 | 1633 | return retval; |
1e37c281 JM |
1634 | } |
1635 | ||
2dc38344 | 1636 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1637 | static ptid_t |
117de6a9 | 1638 | windows_wait (struct target_ops *ops, |
47608cb1 | 1639 | ptid_t ptid, struct target_waitstatus *ourstatus, int options) |
24e60978 | 1640 | { |
2dc38344 | 1641 | int pid = -1; |
39f77062 | 1642 | |
c44537cf CV |
1643 | target_terminal_ours (); |
1644 | ||
24e60978 SC |
1645 | /* We loop when we get a non-standard exception rather than return |
1646 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1647 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1648 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1649 | isn't necessarily what you think it is. */ |
24e60978 SC |
1650 | |
1651 | while (1) | |
450005e7 | 1652 | { |
c57918b2 | 1653 | int retval; |
2b008701 | 1654 | |
695de547 CF |
1655 | /* If the user presses Ctrl-c while the debugger is waiting |
1656 | for an event, he expects the debugger to interrupt his program | |
1657 | and to get the prompt back. There are two possible situations: | |
1658 | ||
1659 | - The debugger and the program do not share the console, in | |
1660 | which case the Ctrl-c event only reached the debugger. | |
1661 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1662 | the inferior. Note that this case is working starting with |
1663 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1664 | inferior console. |
1665 | ||
1666 | - The debugger and the program share the same console, in which | |
1667 | case both debugger and inferior will receive the Ctrl-c event. | |
1668 | In that case the ctrl_c handler will ignore the event, as the | |
1669 | Ctrl-c event generated inside the inferior will trigger the | |
1670 | expected debug event. | |
1671 | ||
1672 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1673 | signal first and the delay until GDB receives that signal | |
1674 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1675 | after we have unblocked the CTRL+C handler. This would | |
1676 | lead to the debugger stopping prematurely while handling | |
1677 | the new-thread event that comes with the handling of the SIGINT | |
1678 | inside the inferior, and then stop again immediately when | |
1679 | the user tries to resume the execution in the inferior. | |
1680 | This is a classic race that we should try to fix one day. */ | |
1681 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
28439f5e | 1682 | retval = get_windows_debug_event (ops, pid, ourstatus); |
695de547 | 1683 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1684 | |
450005e7 | 1685 | if (retval) |
2dc38344 | 1686 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1687 | else |
1688 | { | |
1689 | int detach = 0; | |
3cee93ac | 1690 | |
98bbd631 AC |
1691 | if (deprecated_ui_loop_hook != NULL) |
1692 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1693 | |
450005e7 | 1694 | if (detach) |
7d85a9c0 | 1695 | windows_kill_inferior (ops); |
450005e7 CF |
1696 | } |
1697 | } | |
24e60978 SC |
1698 | } |
1699 | ||
9d3789f7 | 1700 | static void |
dc05df57 | 1701 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 CF |
1702 | { |
1703 | extern int stop_after_trap; | |
fa4ba8da | 1704 | int i; |
d6b48e9c | 1705 | struct inferior *inf; |
2020b7ab | 1706 | struct thread_info *tp; |
9d3789f7 | 1707 | |
a493e3e2 | 1708 | last_sig = GDB_SIGNAL_0; |
9d3789f7 CF |
1709 | event_count = 0; |
1710 | exception_count = 0; | |
bf25528d | 1711 | open_process_used = 0; |
fa4ba8da | 1712 | debug_registers_changed = 0; |
dfe7f3ac | 1713 | debug_registers_used = 0; |
fa4ba8da PM |
1714 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1715 | dr[i] = 0; | |
10325bc5 | 1716 | #ifdef __CYGWIN__ |
de1b3c3d | 1717 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1718 | #endif |
9d3789f7 CF |
1719 | current_event.dwProcessId = pid; |
1720 | memset (¤t_event, 0, sizeof (current_event)); | |
0795be10 | 1721 | push_target (ops); |
cb851954 | 1722 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1723 | windows_clear_solib (); |
9d3789f7 CF |
1724 | clear_proceed_status (); |
1725 | init_wait_for_inferior (); | |
1726 | ||
6c95b8df PA |
1727 | inf = current_inferior (); |
1728 | inferior_appeared (inf, pid); | |
181e7f93 | 1729 | inf->attach_flag = attaching; |
7f9f62ba | 1730 | |
9f9d052e PM |
1731 | /* Make the new process the current inferior, so terminal handling |
1732 | can rely on it. When attaching, we don't know about any thread | |
1733 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1734 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1735 | inferior_ptid = pid_to_ptid (pid); |
1736 | ||
c44537cf | 1737 | terminal_init_inferior_with_pgrp (pid); |
9d3789f7 CF |
1738 | target_terminal_inferior (); |
1739 | ||
16d905e2 | 1740 | windows_initialization_done = 0; |
16c381f0 | 1741 | inf->control.stop_soon = STOP_QUIETLY; |
9d3789f7 CF |
1742 | while (1) |
1743 | { | |
1744 | stop_after_trap = 1; | |
e4c8541f | 1745 | wait_for_inferior (); |
2020b7ab | 1746 | tp = inferior_thread (); |
a493e3e2 | 1747 | if (tp->suspend.stop_signal != GDB_SIGNAL_TRAP) |
16c381f0 | 1748 | resume (0, tp->suspend.stop_signal); |
9d3789f7 CF |
1749 | else |
1750 | break; | |
1751 | } | |
eff8332b | 1752 | |
16d905e2 | 1753 | windows_initialization_done = 1; |
16c381f0 | 1754 | inf->control.stop_soon = NO_STOP_QUIETLY; |
9d3789f7 CF |
1755 | stop_after_trap = 0; |
1756 | return; | |
1757 | } | |
1758 | ||
616a9dc4 CV |
1759 | /* Try to set or remove a user privilege to the current process. Return -1 |
1760 | if that fails, the previous setting of that privilege otherwise. | |
1761 | ||
1762 | This code is copied from the Cygwin source code and rearranged to allow | |
1763 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 1764 | available on NT/2K/XP. */ |
616a9dc4 CV |
1765 | static int |
1766 | set_process_privilege (const char *privilege, BOOL enable) | |
1767 | { | |
616a9dc4 CV |
1768 | HANDLE token_hdl = NULL; |
1769 | LUID restore_priv; | |
1770 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1771 | int ret = -1; | |
1772 | DWORD size; | |
1773 | ||
616a9dc4 CV |
1774 | if (!OpenProcessToken (GetCurrentProcess (), |
1775 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1776 | &token_hdl)) | |
1777 | goto out; | |
1778 | ||
418c6cb3 | 1779 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1780 | goto out; |
1781 | ||
1782 | new_priv.PrivilegeCount = 1; | |
1783 | new_priv.Privileges[0].Luid = restore_priv; | |
1784 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1785 | ||
1786 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1787 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1788 | goto out; |
1789 | #if 0 | |
1790 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1791 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 1792 | windows_attach(). */ |
616a9dc4 | 1793 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 1794 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
1795 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
1796 | goto out; | |
1797 | #endif | |
1798 | ||
1799 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1800 | ||
1801 | out: | |
1802 | if (token_hdl) | |
1803 | CloseHandle (token_hdl); | |
1804 | ||
1805 | return ret; | |
1806 | } | |
1807 | ||
02cc9f49 | 1808 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1809 | static void |
dc05df57 | 1810 | windows_attach (struct target_ops *ops, char *args, int from_tty) |
24e60978 SC |
1811 | { |
1812 | BOOL ok; | |
559e75c0 | 1813 | DWORD pid; |
24e60978 | 1814 | |
74164c56 | 1815 | pid = parse_pid_to_attach (args); |
24e60978 | 1816 | |
616a9dc4 CV |
1817 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1818 | { | |
1819 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
1820 | printf_unfiltered ("This can cause attach to " |
1821 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
1822 | } |
1823 | ||
dc05df57 | 1824 | windows_init_thread_list (); |
9d3789f7 | 1825 | ok = DebugActiveProcess (pid); |
91a175b3 | 1826 | saw_create = 0; |
24e60978 | 1827 | |
10325bc5 | 1828 | #ifdef __CYGWIN__ |
24e60978 | 1829 | if (!ok) |
baa93fa6 | 1830 | { |
581e13c1 | 1831 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
1832 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
1833 | ||
1834 | if (pid > 0) | |
1835 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1836 | } |
1837 | #endif | |
baa93fa6 | 1838 | |
10325bc5 PA |
1839 | if (!ok) |
1840 | error (_("Can't attach to process.")); | |
24e60978 | 1841 | |
2b008701 | 1842 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1843 | |
24e60978 SC |
1844 | if (from_tty) |
1845 | { | |
1846 | char *exec_file = (char *) get_exec_file (0); | |
1847 | ||
1848 | if (exec_file) | |
1849 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1850 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1851 | else |
1852 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1853 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1854 | |
1855 | gdb_flush (gdb_stdout); | |
1856 | } | |
1857 | ||
dc05df57 | 1858 | do_initial_windows_stuff (ops, pid, 1); |
9d3789f7 | 1859 | target_terminal_ours (); |
24e60978 SC |
1860 | } |
1861 | ||
24e60978 | 1862 | static void |
dc05df57 | 1863 | windows_detach (struct target_ops *ops, char *args, int from_tty) |
24e60978 | 1864 | { |
02cc9f49 CV |
1865 | int detached = 1; |
1866 | ||
2b008701 | 1867 | ptid_t ptid = {-1}; |
a493e3e2 | 1868 | windows_resume (ops, ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 1869 | |
2b008701 CF |
1870 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
1871 | { | |
d50a0ce2 CV |
1872 | error (_("Can't detach process %u (error %u)"), |
1873 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 1874 | detached = 0; |
02cc9f49 | 1875 | } |
2b008701 CF |
1876 | DebugSetProcessKillOnExit (FALSE); |
1877 | ||
02cc9f49 | 1878 | if (detached && from_tty) |
24e60978 SC |
1879 | { |
1880 | char *exec_file = get_exec_file (0); | |
1881 | if (exec_file == 0) | |
1882 | exec_file = ""; | |
d50a0ce2 CV |
1883 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
1884 | (unsigned) current_event.dwProcessId); | |
24e60978 SC |
1885 | gdb_flush (gdb_stdout); |
1886 | } | |
7f9f62ba | 1887 | |
26cb8b7c | 1888 | i386_cleanup_dregs (); |
39f77062 | 1889 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1890 | detach_inferior (current_event.dwProcessId); |
1891 | ||
0795be10 | 1892 | unpush_target (ops); |
24e60978 SC |
1893 | } |
1894 | ||
3ee6f623 | 1895 | static char * |
dc05df57 | 1896 | windows_pid_to_exec_file (int pid) |
47216e51 | 1897 | { |
b3c613f2 | 1898 | static char path[__PMAX]; |
10325bc5 | 1899 | #ifdef __CYGWIN__ |
581e13c1 | 1900 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
1901 | int nchars; |
1902 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
1903 | |
1904 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
1905 | nchars = readlink (procexe, path, sizeof(path)); |
1906 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 1907 | { |
33605d39 CF |
1908 | path[nchars] = '\0'; /* Got it */ |
1909 | return path; | |
47216e51 | 1910 | } |
10325bc5 PA |
1911 | #endif |
1912 | ||
33605d39 | 1913 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 1914 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
33605d39 CF |
1915 | if (!get_module_name (0, path)) |
1916 | path[0] = '\0'; | |
1917 | ||
1918 | return path; | |
47216e51 CV |
1919 | } |
1920 | ||
24e60978 SC |
1921 | /* Print status information about what we're accessing. */ |
1922 | ||
1923 | static void | |
dc05df57 | 1924 | windows_files_info (struct target_ops *ignore) |
24e60978 | 1925 | { |
181e7f93 PA |
1926 | struct inferior *inf = current_inferior (); |
1927 | ||
24e60978 | 1928 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
1929 | inf->attach_flag ? "attached" : "child", |
1930 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
1931 | } |
1932 | ||
24e60978 | 1933 | static void |
dc05df57 | 1934 | windows_open (char *arg, int from_tty) |
24e60978 | 1935 | { |
8a3fe4f8 | 1936 | error (_("Use the \"run\" command to start a Unix child process.")); |
24e60978 SC |
1937 | } |
1938 | ||
cd44747c PM |
1939 | /* Modify CreateProcess parameters for use of a new separate console. |
1940 | Parameters are: | |
1941 | *FLAGS: DWORD parameter for general process creation flags. | |
1942 | *SI: STARTUPINFO structure, for which the console window size and | |
1943 | console buffer size is filled in if GDB is running in a console. | |
1944 | to create the new console. | |
1945 | The size of the used font is not available on all versions of | |
1946 | Windows OS. Furthermore, the current font might not be the default | |
1947 | font, but this is still better than before. | |
1948 | If the windows and buffer sizes are computed, | |
1949 | SI->DWFLAGS is changed so that this information is used | |
1950 | by CreateProcess function. */ | |
1951 | ||
1952 | static void | |
1953 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
1954 | { | |
1955 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
1956 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
1957 | ||
1958 | if (hconsole != INVALID_HANDLE_VALUE) | |
1959 | { | |
1960 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
1961 | COORD font_size; | |
1962 | CONSOLE_FONT_INFO cfi; | |
1963 | ||
1964 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
1965 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
1966 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
1967 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
1968 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
1969 | if (font_size.X) | |
1970 | si->dwXSize *= font_size.X; | |
1971 | else | |
1972 | si->dwXSize *= 8; | |
1973 | if (font_size.Y) | |
1974 | si->dwYSize *= font_size.Y; | |
1975 | else | |
1976 | si->dwYSize *= 12; | |
1977 | si->dwXCountChars = sbinfo.dwSize.X; | |
1978 | si->dwYCountChars = sbinfo.dwSize.Y; | |
1979 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
1980 | } | |
1981 | *flags |= CREATE_NEW_CONSOLE; | |
1982 | } | |
1983 | ||
c93dbcba EZ |
1984 | #ifndef __CYGWIN__ |
1985 | /* Function called by qsort to sort environment strings. */ | |
1986 | ||
1987 | static int | |
1988 | envvar_cmp (const void *a, const void *b) | |
1989 | { | |
1990 | const char **p = (const char **) a; | |
1991 | const char **q = (const char **) b; | |
1992 | return strcasecmp (*p, *q); | |
1993 | } | |
1994 | #endif | |
1995 | ||
b7ff339d CV |
1996 | #ifdef __CYGWIN__ |
1997 | static void | |
1998 | clear_win32_environment (char **env) | |
1999 | { | |
2000 | int i; | |
2001 | size_t len; | |
2002 | wchar_t *copy = NULL, *equalpos; | |
2003 | ||
2004 | for (i = 0; env[i] && *env[i]; i++) | |
2005 | { | |
2006 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2007 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2008 | mbstowcs (copy, env[i], len); | |
2009 | equalpos = wcschr (copy, L'='); | |
2010 | if (equalpos) | |
2011 | *equalpos = L'\0'; | |
2012 | SetEnvironmentVariableW (copy, NULL); | |
2013 | } | |
2014 | xfree (copy); | |
2015 | } | |
2016 | #endif | |
2017 | ||
dc05df57 | 2018 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2019 | EXEC_FILE is the file to run. |
2020 | ALLARGS is a string containing the arguments to the program. | |
2021 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2022 | ||
24e60978 | 2023 | static void |
dc05df57 | 2024 | windows_create_inferior (struct target_ops *ops, char *exec_file, |
136d6dae | 2025 | char *allargs, char **in_env, int from_tty) |
24e60978 | 2026 | { |
b3c613f2 | 2027 | STARTUPINFO si; |
41b4aadc | 2028 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2029 | cygwin_buf_t real_path[__PMAX]; |
2030 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 | 2031 | const char *sh; |
b3c613f2 CF |
2032 | cygwin_buf_t *toexec; |
2033 | cygwin_buf_t *cygallargs; | |
2034 | cygwin_buf_t *args; | |
b7ff339d CV |
2035 | char **old_env = NULL; |
2036 | PWCHAR w32_env; | |
d0d0ab16 | 2037 | size_t len; |
2becadee CF |
2038 | int tty; |
2039 | int ostdin, ostdout, ostderr; | |
41b4aadc | 2040 | #else |
b3c613f2 CF |
2041 | char real_path[__PMAX]; |
2042 | char shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 CV |
2043 | char *toexec; |
2044 | char *args; | |
8f205f9c | 2045 | size_t args_len; |
41b4aadc | 2046 | HANDLE tty; |
c93dbcba EZ |
2047 | char *w32env; |
2048 | char *temp; | |
2049 | size_t envlen; | |
2050 | int i; | |
2051 | size_t envsize; | |
2052 | char **env; | |
41b4aadc | 2053 | #endif |
d0d0ab16 CV |
2054 | PROCESS_INFORMATION pi; |
2055 | BOOL ret; | |
2056 | DWORD flags = 0; | |
3cb3b8df | 2057 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2058 | |
2059 | if (!exec_file) | |
8a3fe4f8 | 2060 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
2061 | |
2062 | memset (&si, 0, sizeof (si)); | |
2063 | si.cb = sizeof (si); | |
2064 | ||
d0d0ab16 CV |
2065 | if (new_group) |
2066 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2067 | ||
2068 | if (new_console) | |
cd44747c | 2069 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2070 | |
10325bc5 | 2071 | #ifdef __CYGWIN__ |
349b409f | 2072 | if (!useshell) |
dfe7f3ac | 2073 | { |
d0d0ab16 CV |
2074 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2075 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2076 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2077 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2078 | toexec = real_path; |
b3c613f2 | 2079 | #ifdef __USEWIDE |
d0d0ab16 CV |
2080 | len = mbstowcs (NULL, allargs, 0) + 1; |
2081 | if (len == (size_t) -1) | |
2082 | error (_("Error starting executable: %d"), errno); | |
2083 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2084 | mbstowcs (cygallargs, allargs, len); | |
60c5c021 CF |
2085 | #else |
2086 | cygallargs = allargs; | |
b3c613f2 | 2087 | #endif |
dfe7f3ac CF |
2088 | } |
2089 | else | |
2090 | { | |
349b409f CF |
2091 | sh = getenv ("SHELL"); |
2092 | if (!sh) | |
2093 | sh = "/bin/sh"; | |
b3c613f2 | 2094 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2095 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2096 | #ifdef __USEWIDE |
d0d0ab16 CV |
2097 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2098 | + mbstowcs (NULL, allargs, 0) + 2; | |
2099 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2100 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2101 | #else |
08850b56 PM |
2102 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2103 | + strlen (allargs) + 2); | |
2104 | cygallargs = (char *) alloca (len); | |
2105 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2106 | #endif |
dfe7f3ac | 2107 | toexec = shell; |
d0d0ab16 | 2108 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2109 | } |
b3c613f2 CF |
2110 | |
2111 | #ifdef __USEWIDE | |
2112 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2113 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2114 | wcscpy (args, toexec); |
2115 | wcscat (args, L" "); | |
2116 | wcscat (args, cygallargs); | |
b3c613f2 CF |
2117 | #else |
2118 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); | |
2119 | strcpy (args, toexec); | |
2120 | strcat (args, " "); | |
2121 | strcat (args, cygallargs); | |
2122 | #endif | |
2123 | ||
b7ff339d CV |
2124 | #ifdef CW_CVT_ENV_TO_WINENV |
2125 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2126 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2127 | if (w32_env != (PWCHAR) -1) | |
2128 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2129 | else | |
2130 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
2131 | #endif | |
2132 | { | |
2133 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2134 | clear_win32_environment (environ); | |
2135 | /* Prepare the environment vars for CreateProcess. */ | |
2136 | old_env = environ; | |
2137 | environ = in_env; | |
2138 | cygwin_internal (CW_SYNC_WINENV); | |
2139 | w32_env = NULL; | |
2140 | } | |
1750a5ef | 2141 | |
2becadee CF |
2142 | if (!inferior_io_terminal) |
2143 | tty = ostdin = ostdout = ostderr = -1; | |
2144 | else | |
2145 | { | |
2146 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2147 | if (tty < 0) | |
2148 | { | |
2149 | print_sys_errmsg (inferior_io_terminal, errno); | |
2150 | ostdin = ostdout = ostderr = -1; | |
2151 | } | |
2152 | else | |
2153 | { | |
2154 | ostdin = dup (0); | |
2155 | ostdout = dup (1); | |
2156 | ostderr = dup (2); | |
2157 | dup2 (tty, 0); | |
2158 | dup2 (tty, 1); | |
2159 | dup2 (tty, 2); | |
2160 | } | |
2161 | } | |
d0d0ab16 CV |
2162 | |
2163 | windows_init_thread_list (); | |
b3c613f2 CF |
2164 | ret = CreateProcess (0, |
2165 | args, /* command line */ | |
2166 | NULL, /* Security */ | |
2167 | NULL, /* thread */ | |
2168 | TRUE, /* inherit handles */ | |
2169 | flags, /* start flags */ | |
b7ff339d | 2170 | w32_env, /* environment */ |
b3c613f2 CF |
2171 | NULL, /* current directory */ |
2172 | &si, | |
2173 | &pi); | |
b7ff339d CV |
2174 | if (w32_env) |
2175 | /* Just free the Win32 environment, if it could be created. */ | |
2176 | free (w32_env); | |
2177 | else | |
2178 | { | |
2179 | /* Reset all environment variables to avoid leftover on next run. */ | |
2180 | clear_win32_environment (in_env); | |
2181 | /* Restore normal GDB environment variables. */ | |
2182 | environ = old_env; | |
2183 | cygwin_internal (CW_SYNC_WINENV); | |
2184 | } | |
2185 | ||
d0d0ab16 CV |
2186 | if (tty >= 0) |
2187 | { | |
2188 | close (tty); | |
2189 | dup2 (ostdin, 0); | |
2190 | dup2 (ostdout, 1); | |
2191 | dup2 (ostderr, 2); | |
2192 | close (ostdin); | |
2193 | close (ostdout); | |
2194 | close (ostderr); | |
2195 | } | |
41b4aadc | 2196 | #else |
b3c613f2 | 2197 | toexec = exec_file; |
8f205f9c JB |
2198 | /* Build the command line, a space-separated list of tokens where |
2199 | the first token is the name of the module to be executed. | |
2200 | To avoid ambiguities introduced by spaces in the module name, | |
2201 | we quote it. */ | |
2202 | args_len = strlen (toexec) + 2 /* quotes */ + strlen (allargs) + 2; | |
2203 | args = alloca (args_len); | |
2204 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs); | |
d0d0ab16 | 2205 | |
d0d0ab16 CV |
2206 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2207 | ||
41b4aadc CF |
2208 | if (!inferior_io_terminal) |
2209 | tty = INVALID_HANDLE_VALUE; | |
2210 | else | |
2211 | { | |
2212 | SECURITY_ATTRIBUTES sa; | |
2213 | sa.nLength = sizeof(sa); | |
2214 | sa.lpSecurityDescriptor = 0; | |
2215 | sa.bInheritHandle = TRUE; | |
2216 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2217 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2218 | if (tty == INVALID_HANDLE_VALUE) | |
2219 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2220 | inferior_io_terminal, (unsigned) GetLastError ()); | |
2221 | else | |
2222 | { | |
2223 | si.hStdInput = tty; | |
2224 | si.hStdOutput = tty; | |
2225 | si.hStdError = tty; | |
2226 | si.dwFlags |= STARTF_USESTDHANDLES; | |
2227 | } | |
2228 | } | |
2becadee | 2229 | |
c93dbcba EZ |
2230 | /* CreateProcess takes the environment list as a null terminated set of |
2231 | strings (i.e. two nulls terminate the list). */ | |
2232 | ||
2233 | /* Get total size for env strings. */ | |
2234 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2235 | envlen += strlen (in_env[i]) + 1; | |
2236 | ||
2237 | envsize = sizeof (in_env[0]) * (i + 1); | |
2238 | env = (char **) alloca (envsize); | |
2239 | memcpy (env, in_env, envsize); | |
2240 | /* Windows programs expect the environment block to be sorted. */ | |
2241 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2242 | ||
2243 | w32env = alloca (envlen + 1); | |
2244 | ||
2245 | /* Copy env strings into new buffer. */ | |
2246 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2247 | { | |
2248 | strcpy (temp, env[i]); | |
2249 | temp += strlen (temp) + 1; | |
2250 | } | |
2251 | ||
2252 | /* Final nil string to terminate new env. */ | |
2253 | *temp = 0; | |
2254 | ||
dc05df57 | 2255 | windows_init_thread_list (); |
d0d0ab16 CV |
2256 | ret = CreateProcessA (0, |
2257 | args, /* command line */ | |
2258 | NULL, /* Security */ | |
2259 | NULL, /* thread */ | |
2260 | TRUE, /* inherit handles */ | |
2261 | flags, /* start flags */ | |
c93dbcba | 2262 | w32env, /* environment */ |
d0d0ab16 CV |
2263 | NULL, /* current directory */ |
2264 | &si, | |
2265 | &pi); | |
41b4aadc CF |
2266 | if (tty != INVALID_HANDLE_VALUE) |
2267 | CloseHandle (tty); | |
10325bc5 | 2268 | #endif |
2becadee | 2269 | |
24e60978 | 2270 | if (!ret) |
d50a0ce2 | 2271 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 2272 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 2273 | |
c1766e7d PM |
2274 | CloseHandle (pi.hThread); |
2275 | CloseHandle (pi.hProcess); | |
2276 | ||
dfe7f3ac CF |
2277 | if (useshell && shell[0] != '\0') |
2278 | saw_create = -1; | |
2279 | else | |
2280 | saw_create = 0; | |
2281 | ||
dc05df57 | 2282 | do_initial_windows_stuff (ops, pi.dwProcessId, 0); |
d3a09475 | 2283 | |
dc05df57 | 2284 | /* windows_continue (DBG_CONTINUE, -1); */ |
24e60978 SC |
2285 | } |
2286 | ||
2287 | static void | |
dc05df57 | 2288 | windows_mourn_inferior (struct target_ops *ops) |
24e60978 | 2289 | { |
dc05df57 | 2290 | (void) windows_continue (DBG_CONTINUE, -1); |
fa4ba8da | 2291 | i386_cleanup_dregs(); |
bf25528d CF |
2292 | if (open_process_used) |
2293 | { | |
2294 | CHECK (CloseHandle (current_process_handle)); | |
2295 | open_process_used = 0; | |
2296 | } | |
0795be10 | 2297 | unpush_target (ops); |
24e60978 SC |
2298 | generic_mourn_inferior (); |
2299 | } | |
2300 | ||
24e60978 | 2301 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 2302 | ^C on the controlling terminal. */ |
24e60978 | 2303 | |
b607efe7 | 2304 | static void |
dc05df57 | 2305 | windows_stop (ptid_t ptid) |
24e60978 | 2306 | { |
1ef980b9 | 2307 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2308 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2309 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2310 | } |
2311 | ||
3ee6f623 | 2312 | static int |
dc05df57 | 2313 | windows_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len, |
0a65a603 AC |
2314 | int write, struct mem_attrib *mem, |
2315 | struct target_ops *target) | |
24e60978 | 2316 | { |
5732a500 | 2317 | SIZE_T done = 0; |
24e60978 SC |
2318 | if (write) |
2319 | { | |
42f45f1a KT |
2320 | DEBUG_MEM (("gdb: write target memory, %d bytes at %s\n", |
2321 | len, core_addr_to_string (memaddr))); | |
2b008701 | 2322 | if (!WriteProcessMemory (current_process_handle, |
2c647436 | 2323 | (LPVOID) (uintptr_t) memaddr, our, |
6f17862b CF |
2324 | len, &done)) |
2325 | done = 0; | |
2b008701 | 2326 | FlushInstructionCache (current_process_handle, |
2c647436 | 2327 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2328 | } |
2329 | else | |
2330 | { | |
42f45f1a KT |
2331 | DEBUG_MEM (("gdb: read target memory, %d bytes at %s\n", |
2332 | len, core_addr_to_string (memaddr))); | |
2b008701 | 2333 | if (!ReadProcessMemory (current_process_handle, |
2c647436 | 2334 | (LPCVOID) (uintptr_t) memaddr, our, |
6f17862b CF |
2335 | len, &done)) |
2336 | done = 0; | |
24e60978 SC |
2337 | } |
2338 | return done; | |
2339 | } | |
2340 | ||
3ee6f623 | 2341 | static void |
7d85a9c0 | 2342 | windows_kill_inferior (struct target_ops *ops) |
24e60978 | 2343 | { |
3cee93ac CF |
2344 | CHECK (TerminateProcess (current_process_handle, 0)); |
2345 | ||
b5edcb45 ILT |
2346 | for (;;) |
2347 | { | |
dc05df57 | 2348 | if (!windows_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 2349 | break; |
3cee93ac | 2350 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2351 | break; |
3cee93ac | 2352 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2353 | break; |
2354 | } | |
2355 | ||
581e13c1 | 2356 | target_mourn_inferior (); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
2357 | } |
2358 | ||
24e60978 | 2359 | static void |
dc05df57 | 2360 | windows_prepare_to_store (struct regcache *regcache) |
24e60978 | 2361 | { |
581e13c1 | 2362 | /* Do nothing, since we can store individual regs. */ |
24e60978 SC |
2363 | } |
2364 | ||
2365 | static int | |
dc05df57 | 2366 | windows_can_run (void) |
24e60978 SC |
2367 | { |
2368 | return 1; | |
2369 | } | |
2370 | ||
2371 | static void | |
460014f5 | 2372 | windows_close (void) |
24e60978 | 2373 | { |
dc05df57 | 2374 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
3bccec63 | 2375 | PIDGET (inferior_ptid))); |
24e60978 | 2376 | } |
1ef980b9 | 2377 | |
581e13c1 | 2378 | /* Convert pid to printable format. */ |
3ee6f623 | 2379 | static char * |
117de6a9 | 2380 | windows_pid_to_str (struct target_ops *ops, ptid_t ptid) |
24e60978 | 2381 | { |
3ee6f623 | 2382 | static char buf[80]; |
3ee6f623 | 2383 | |
2dc38344 PA |
2384 | if (ptid_get_tid (ptid) != 0) |
2385 | { | |
2386 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2387 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2388 | return buf; | |
2389 | } | |
2390 | ||
2391 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2392 | } |
2393 | ||
de1b3c3d | 2394 | static LONGEST |
dc05df57 | 2395 | windows_xfer_shared_libraries (struct target_ops *ops, |
de1b3c3d PA |
2396 | enum target_object object, const char *annex, |
2397 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2398 | ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2399 | { |
de1b3c3d PA |
2400 | struct obstack obstack; |
2401 | const char *buf; | |
2402 | LONGEST len_avail; | |
3cb8e7f6 | 2403 | struct so_list *so; |
3cb8e7f6 | 2404 | |
de1b3c3d PA |
2405 | if (writebuf) |
2406 | return -1; | |
3cb8e7f6 | 2407 | |
de1b3c3d PA |
2408 | obstack_init (&obstack); |
2409 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2410 | for (so = solib_start.next; so; so = so->next) | |
581e13c1 MS |
2411 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) |
2412 | (uintptr_t) so->lm_info->load_addr, | |
f5656ead | 2413 | target_gdbarch (), &obstack); |
de1b3c3d | 2414 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2415 | |
de1b3c3d PA |
2416 | buf = obstack_finish (&obstack); |
2417 | len_avail = strlen (buf); | |
2418 | if (offset >= len_avail) | |
49dc7f4b PM |
2419 | len= 0; |
2420 | else | |
2421 | { | |
2422 | if (len > len_avail - offset) | |
2423 | len = len_avail - offset; | |
2424 | memcpy (readbuf, buf + offset, len); | |
2425 | } | |
3cb8e7f6 | 2426 | |
de1b3c3d PA |
2427 | obstack_free (&obstack, NULL); |
2428 | return len; | |
3cb8e7f6 CF |
2429 | } |
2430 | ||
de1b3c3d | 2431 | static LONGEST |
dc05df57 | 2432 | windows_xfer_partial (struct target_ops *ops, enum target_object object, |
de1b3c3d PA |
2433 | const char *annex, gdb_byte *readbuf, |
2434 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2435 | { |
de1b3c3d | 2436 | switch (object) |
3cb8e7f6 | 2437 | { |
de1b3c3d PA |
2438 | case TARGET_OBJECT_MEMORY: |
2439 | if (readbuf) | |
2440 | return (*ops->deprecated_xfer_memory) (offset, readbuf, | |
244e85c8 | 2441 | len, 0/*read*/, NULL, ops); |
de1b3c3d PA |
2442 | if (writebuf) |
2443 | return (*ops->deprecated_xfer_memory) (offset, (gdb_byte *) writebuf, | |
2444 | len, 1/*write*/, NULL, ops); | |
2445 | return -1; | |
2446 | ||
2447 | case TARGET_OBJECT_LIBRARIES: | |
dc05df57 | 2448 | return windows_xfer_shared_libraries (ops, object, annex, readbuf, |
de1b3c3d | 2449 | writebuf, offset, len); |
3929abe9 | 2450 | |
de1b3c3d PA |
2451 | default: |
2452 | if (ops->beneath != NULL) | |
2453 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2454 | readbuf, writebuf, offset, len); | |
2455 | return -1; | |
3929abe9 | 2456 | } |
02c5aecd CF |
2457 | } |
2458 | ||
711e434b PM |
2459 | /* Provide thread local base, i.e. Thread Information Block address. |
2460 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
2461 | ||
2462 | static int | |
2463 | windows_get_tib_address (ptid_t ptid, CORE_ADDR *addr) | |
2464 | { | |
2465 | thread_info *th; | |
2466 | ||
2467 | th = thread_rec (ptid_get_tid (ptid), 0); | |
2468 | if (th == NULL) | |
2469 | return 0; | |
2470 | ||
2471 | if (addr != NULL) | |
2472 | *addr = th->thread_local_base; | |
2473 | ||
2474 | return 1; | |
2475 | } | |
2476 | ||
1e2f1c5c JB |
2477 | static ptid_t |
2478 | windows_get_ada_task_ptid (long lwp, long thread) | |
2479 | { | |
2480 | return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp); | |
2481 | } | |
2482 | ||
3ee6f623 | 2483 | static void |
dc05df57 | 2484 | init_windows_ops (void) |
3ee6f623 | 2485 | { |
dc05df57 CF |
2486 | windows_ops.to_shortname = "child"; |
2487 | windows_ops.to_longname = "Win32 child process"; | |
2488 | windows_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2489 | windows_ops.to_open = windows_open; | |
2490 | windows_ops.to_close = windows_close; | |
2491 | windows_ops.to_attach = windows_attach; | |
2492 | windows_ops.to_attach_no_wait = 1; | |
2493 | windows_ops.to_detach = windows_detach; | |
2494 | windows_ops.to_resume = windows_resume; | |
2495 | windows_ops.to_wait = windows_wait; | |
2496 | windows_ops.to_fetch_registers = windows_fetch_inferior_registers; | |
2497 | windows_ops.to_store_registers = windows_store_inferior_registers; | |
2498 | windows_ops.to_prepare_to_store = windows_prepare_to_store; | |
2499 | windows_ops.deprecated_xfer_memory = windows_xfer_memory; | |
2500 | windows_ops.to_xfer_partial = windows_xfer_partial; | |
2501 | windows_ops.to_files_info = windows_files_info; | |
2502 | windows_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2503 | windows_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2504 | windows_ops.to_terminal_init = terminal_init_inferior; | |
2505 | windows_ops.to_terminal_inferior = terminal_inferior; | |
2506 | windows_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2507 | windows_ops.to_terminal_ours = terminal_ours; | |
2508 | windows_ops.to_terminal_save_ours = terminal_save_ours; | |
2509 | windows_ops.to_terminal_info = child_terminal_info; | |
2510 | windows_ops.to_kill = windows_kill_inferior; | |
2511 | windows_ops.to_create_inferior = windows_create_inferior; | |
2512 | windows_ops.to_mourn_inferior = windows_mourn_inferior; | |
2513 | windows_ops.to_can_run = windows_can_run; | |
2514 | windows_ops.to_thread_alive = windows_thread_alive; | |
2515 | windows_ops.to_pid_to_str = windows_pid_to_str; | |
2516 | windows_ops.to_stop = windows_stop; | |
2517 | windows_ops.to_stratum = process_stratum; | |
c35b1492 PA |
2518 | windows_ops.to_has_all_memory = default_child_has_all_memory; |
2519 | windows_ops.to_has_memory = default_child_has_memory; | |
2520 | windows_ops.to_has_stack = default_child_has_stack; | |
2521 | windows_ops.to_has_registers = default_child_has_registers; | |
2522 | windows_ops.to_has_execution = default_child_has_execution; | |
dc05df57 | 2523 | windows_ops.to_pid_to_exec_file = windows_pid_to_exec_file; |
1e2f1c5c | 2524 | windows_ops.to_get_ada_task_ptid = windows_get_ada_task_ptid; |
711e434b | 2525 | windows_ops.to_get_tib_address = windows_get_tib_address; |
9bb9e8ad | 2526 | |
5aca5a82 PM |
2527 | i386_use_watchpoints (&windows_ops); |
2528 | ||
9bb9e8ad PM |
2529 | i386_dr_low.set_control = cygwin_set_dr7; |
2530 | i386_dr_low.set_addr = cygwin_set_dr; | |
7b50312a | 2531 | i386_dr_low.get_addr = cygwin_get_dr; |
9bb9e8ad | 2532 | i386_dr_low.get_status = cygwin_get_dr6; |
7b50312a | 2533 | i386_dr_low.get_control = cygwin_get_dr7; |
9bb9e8ad PM |
2534 | |
2535 | /* i386_dr_low.debug_register_length field is set by | |
2536 | calling i386_set_debug_register_length function | |
2537 | in processor windows specific native file. */ | |
2538 | ||
dc05df57 | 2539 | windows_ops.to_magic = OPS_MAGIC; |
c719b714 | 2540 | } |
24e60978 | 2541 | |
3929abe9 | 2542 | static void |
dc05df57 | 2543 | set_windows_aliases (char *argv0) |
3929abe9 CF |
2544 | { |
2545 | add_info_alias ("dll", "sharedlibrary", 1); | |
2546 | } | |
2547 | ||
d603d4b3 JK |
2548 | /* -Wmissing-prototypes */ |
2549 | extern initialize_file_ftype _initialize_windows_nat; | |
2550 | ||
24e60978 | 2551 | void |
dc05df57 | 2552 | _initialize_windows_nat (void) |
24e60978 | 2553 | { |
fa58ee11 EZ |
2554 | struct cmd_list_element *c; |
2555 | ||
dc05df57 | 2556 | init_windows_ops (); |
1ef980b9 | 2557 | |
d0d0ab16 CV |
2558 | #ifdef __CYGWIN__ |
2559 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
2560 | #endif | |
2561 | ||
fa58ee11 | 2562 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2563 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2564 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2565 | |
2566 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2567 | ||
70992597 PM |
2568 | add_com_alias ("add-shared-symbol-files", "dll-symbols", class_alias, 1); |
2569 | ||
2570 | add_com_alias ("assf", "dll-symbols", class_alias, 1); | |
2571 | ||
10325bc5 | 2572 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2573 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2574 | Set use of shell to start subprocess."), _("\ | |
2575 | Show use of shell to start subprocess."), NULL, | |
2576 | NULL, | |
2577 | NULL, /* FIXME: i18n: */ | |
2578 | &setlist, &showlist); | |
2579 | ||
581e13c1 MS |
2580 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
2581 | &cygwin_exceptions, _("\ | |
09280ddf CF |
2582 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
2583 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2584 | NULL, | |
2585 | NULL, /* FIXME: i18n: */ | |
2586 | &setlist, &showlist); | |
10325bc5 | 2587 | #endif |
09280ddf | 2588 | |
5bf193a2 AC |
2589 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2590 | Set creation of new console when creating child process."), _("\ | |
2591 | Show creation of new console when creating child process."), NULL, | |
2592 | NULL, | |
2593 | NULL, /* FIXME: i18n: */ | |
2594 | &setlist, &showlist); | |
2595 | ||
2596 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2597 | Set creation of new group when creating child process."), _("\ | |
2598 | Show creation of new group when creating child process."), NULL, | |
2599 | NULL, | |
2600 | NULL, /* FIXME: i18n: */ | |
2601 | &setlist, &showlist); | |
2602 | ||
2603 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2604 | Set whether to display execution in child process."), _("\ | |
2605 | Show whether to display execution in child process."), NULL, | |
2606 | NULL, | |
2607 | NULL, /* FIXME: i18n: */ | |
2608 | &setlist, &showlist); | |
2609 | ||
2610 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2611 | Set whether to display kernel events in child process."), _("\ | |
2612 | Show whether to display kernel events in child process."), NULL, | |
2613 | NULL, | |
2614 | NULL, /* FIXME: i18n: */ | |
2615 | &setlist, &showlist); | |
2616 | ||
2617 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2618 | Set whether to display memory accesses in child process."), _("\ | |
2619 | Show whether to display memory accesses in child process."), NULL, | |
2620 | NULL, | |
2621 | NULL, /* FIXME: i18n: */ | |
2622 | &setlist, &showlist); | |
2623 | ||
2624 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2625 | &debug_exceptions, _("\ | |
2626 | Set whether to display kernel exceptions in child process."), _("\ | |
2627 | Show whether to display kernel exceptions in child process."), NULL, | |
2628 | NULL, | |
2629 | NULL, /* FIXME: i18n: */ | |
2630 | &setlist, &showlist); | |
1ef980b9 | 2631 | |
711e434b | 2632 | init_w32_command_list (); |
c1748f97 PM |
2633 | |
2634 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2635 | _("Display selectors infos."), |
c1748f97 | 2636 | &info_w32_cmdlist); |
dc05df57 CF |
2637 | add_target (&windows_ops); |
2638 | deprecated_init_ui_hook = set_windows_aliases; | |
24e60978 | 2639 | } |
3cee93ac | 2640 | |
fa4ba8da PM |
2641 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2642 | ||
2643 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2644 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 2645 | actually set up when windows_continue is called. */ |
9bb9e8ad | 2646 | static void |
fa4ba8da PM |
2647 | cygwin_set_dr (int i, CORE_ADDR addr) |
2648 | { | |
2649 | if (i < 0 || i > 3) | |
2650 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2651 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 2652 | dr[i] = addr; |
fa4ba8da PM |
2653 | debug_registers_changed = 1; |
2654 | debug_registers_used = 1; | |
2655 | } | |
2656 | ||
2657 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2658 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 2659 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
2660 | static void |
2661 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 2662 | { |
9bb9e8ad | 2663 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
2664 | debug_registers_changed = 1; |
2665 | debug_registers_used = 1; | |
2666 | } | |
2667 | ||
7b50312a PA |
2668 | /* Get the value of debug register I from the inferior. */ |
2669 | ||
2670 | static CORE_ADDR | |
2671 | cygwin_get_dr (int i) | |
2672 | { | |
2673 | return dr[i]; | |
2674 | } | |
2675 | ||
fa4ba8da PM |
2676 | /* Get the value of the DR6 debug status register from the inferior. |
2677 | Here we just return the value stored in dr[6] | |
2678 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 2679 | static unsigned long |
fa4ba8da PM |
2680 | cygwin_get_dr6 (void) |
2681 | { | |
9bb9e8ad | 2682 | return (unsigned long) dr[6]; |
fa4ba8da PM |
2683 | } |
2684 | ||
7b50312a PA |
2685 | /* Get the value of the DR7 debug status register from the inferior. |
2686 | Here we just return the value stored in dr[7] by the last call to | |
2687 | thread_rec for current_event.dwThreadId id. */ | |
2688 | ||
2689 | static unsigned long | |
2690 | cygwin_get_dr7 (void) | |
2691 | { | |
2692 | return (unsigned long) dr[7]; | |
2693 | } | |
2694 | ||
2dc38344 | 2695 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 2696 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 2697 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
3cee93ac | 2698 | static int |
28439f5e | 2699 | windows_thread_alive (struct target_ops *ops, ptid_t ptid) |
3cee93ac | 2700 | { |
2dc38344 PA |
2701 | int tid; |
2702 | ||
2703 | gdb_assert (ptid_get_tid (ptid) != 0); | |
2704 | tid = ptid_get_tid (ptid); | |
39f77062 | 2705 | |
581e13c1 MS |
2706 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 |
2707 | ? FALSE : TRUE; | |
3cee93ac CF |
2708 | } |
2709 | ||
d603d4b3 JK |
2710 | /* -Wmissing-prototypes */ |
2711 | extern initialize_file_ftype _initialize_check_for_gdb_ini; | |
2712 | ||
2a3d5645 CF |
2713 | void |
2714 | _initialize_check_for_gdb_ini (void) | |
2715 | { | |
2716 | char *homedir; | |
2717 | if (inhibit_gdbinit) | |
2718 | return; | |
2719 | ||
2720 | homedir = getenv ("HOME"); | |
2721 | if (homedir) | |
2722 | { | |
2723 | char *p; | |
2724 | char *oldini = (char *) alloca (strlen (homedir) + | |
2725 | sizeof ("/gdb.ini")); | |
2726 | strcpy (oldini, homedir); | |
2727 | p = strchr (oldini, '\0'); | |
0ba1096a | 2728 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
2729 | *p++ = '/'; |
2730 | strcpy (p, "gdb.ini"); | |
2731 | if (access (oldini, 0) == 0) | |
2732 | { | |
2733 | int len = strlen (oldini); | |
2734 | char *newini = alloca (len + 1); | |
08850b56 PM |
2735 | |
2736 | xsnprintf (newini, len + 1, "%.*s.gdbinit", | |
2737 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); | |
8a3fe4f8 | 2738 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2739 | } |
2740 | } | |
2741 | } | |
33605d39 | 2742 | |
2b008701 | 2743 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 2744 | these functions could not be found. */ |
2b008701 CF |
2745 | static BOOL WINAPI |
2746 | bad_DebugActiveProcessStop (DWORD w) | |
2747 | { | |
2748 | return FALSE; | |
2749 | } | |
2750 | static BOOL WINAPI | |
2751 | bad_DebugBreakProcess (HANDLE w) | |
2752 | { | |
2753 | return FALSE; | |
2754 | } | |
2755 | static BOOL WINAPI | |
2756 | bad_DebugSetProcessKillOnExit (BOOL w) | |
2757 | { | |
2758 | return FALSE; | |
2759 | } | |
2760 | static BOOL WINAPI | |
2761 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
2762 | { | |
2763 | return FALSE; | |
2764 | } | |
b3c613f2 CF |
2765 | |
2766 | #ifdef __USEWIDE | |
2b008701 | 2767 | static DWORD WINAPI |
b3c613f2 | 2768 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
2769 | { |
2770 | return 0; | |
2771 | } | |
d0d0ab16 CV |
2772 | #else |
2773 | static DWORD WINAPI | |
b3c613f2 | 2774 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
2775 | { |
2776 | return 0; | |
2777 | } | |
2778 | #endif | |
b3c613f2 | 2779 | |
2b008701 CF |
2780 | static BOOL WINAPI |
2781 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
2782 | { | |
2783 | return FALSE; | |
2784 | } | |
2785 | ||
418c6cb3 CF |
2786 | static BOOL WINAPI |
2787 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
2788 | { | |
2789 | return FALSE; | |
2790 | } | |
2791 | ||
cd44747c PM |
2792 | static BOOL WINAPI |
2793 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
2794 | { | |
2795 | f->nFont = 0; | |
2796 | return 1; | |
2797 | } | |
2798 | static COORD WINAPI | |
2799 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
2800 | { | |
2801 | COORD size; | |
2802 | size.X = 8; | |
2803 | size.Y = 12; | |
2804 | return size; | |
2805 | } | |
2806 | ||
d603d4b3 JK |
2807 | /* -Wmissing-prototypes */ |
2808 | extern initialize_file_ftype _initialize_loadable; | |
2809 | ||
2b008701 | 2810 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 2811 | of Windows. */ |
d603d4b3 | 2812 | |
33605d39 | 2813 | void |
2b008701 | 2814 | _initialize_loadable (void) |
33605d39 | 2815 | { |
2b008701 CF |
2816 | HMODULE hm = NULL; |
2817 | ||
2818 | hm = LoadLibrary ("kernel32.dll"); | |
2819 | if (hm) | |
33605d39 | 2820 | { |
b3c613f2 | 2821 | DebugActiveProcessStop = (void *) |
2b008701 | 2822 | GetProcAddress (hm, "DebugActiveProcessStop"); |
b3c613f2 | 2823 | DebugBreakProcess = (void *) |
2b008701 | 2824 | GetProcAddress (hm, "DebugBreakProcess"); |
b3c613f2 | 2825 | DebugSetProcessKillOnExit = (void *) |
2b008701 | 2826 | GetProcAddress (hm, "DebugSetProcessKillOnExit"); |
cd44747c PM |
2827 | GetConsoleFontSize = (void *) |
2828 | GetProcAddress (hm, "GetConsoleFontSize"); | |
2829 | GetCurrentConsoleFont = (void *) | |
2830 | GetProcAddress (hm, "GetCurrentConsoleFont"); | |
2b008701 | 2831 | } |
33605d39 | 2832 | |
2b008701 | 2833 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 2834 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
2835 | if (!DebugBreakProcess) |
2836 | DebugBreakProcess = bad_DebugBreakProcess; | |
2837 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 2838 | { |
b3c613f2 CF |
2839 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
2840 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 2841 | } |
cd44747c PM |
2842 | if (!GetConsoleFontSize) |
2843 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
2844 | if (!GetCurrentConsoleFont) | |
2845 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 2846 | |
2b008701 | 2847 | /* Load optional functions used for retrieving filename information |
581e13c1 | 2848 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
2849 | hm = LoadLibrary ("psapi.dll"); |
2850 | if (hm) | |
2851 | { | |
b3c613f2 | 2852 | EnumProcessModules = (void *) |
2b008701 | 2853 | GetProcAddress (hm, "EnumProcessModules"); |
b3c613f2 | 2854 | GetModuleInformation = (void *) |
2b008701 | 2855 | GetProcAddress (hm, "GetModuleInformation"); |
b3c613f2 CF |
2856 | GetModuleFileNameEx = (void *) |
2857 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
2858 | } |
2859 | ||
b3c613f2 | 2860 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
2861 | { |
2862 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 2863 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
2864 | EnumProcessModules = bad_EnumProcessModules; |
2865 | GetModuleInformation = bad_GetModuleInformation; | |
2866 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
2867 | /* This will probably fail on Windows 9x/Me. Let the user know |
2868 | that we're missing some functionality. */ | |
2869 | warning(_("\ | |
2870 | cannot automatically find executable file or library to read symbols.\n\ | |
2871 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
2872 | } |
2873 | ||
2874 | hm = LoadLibrary ("advapi32.dll"); | |
2875 | if (hm) | |
2876 | { | |
b3c613f2 CF |
2877 | OpenProcessToken = (void *) GetProcAddress (hm, "OpenProcessToken"); |
2878 | LookupPrivilegeValueA = (void *) | |
418c6cb3 | 2879 | GetProcAddress (hm, "LookupPrivilegeValueA"); |
b3c613f2 | 2880 | AdjustTokenPrivileges = (void *) |
418c6cb3 CF |
2881 | GetProcAddress (hm, "AdjustTokenPrivileges"); |
2882 | /* Only need to set one of these since if OpenProcessToken fails nothing | |
581e13c1 MS |
2883 | else is needed. */ |
2884 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
2885 | || !AdjustTokenPrivileges) | |
b3c613f2 | 2886 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 2887 | } |
33605d39 | 2888 | } |