Commit | Line | Data |
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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
618f726f | 3 | Copyright (C) 1995-2016 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" | |
45741a9c | 27 | #include "infrun.h" |
24e60978 | 28 | #include "target.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> | |
403d9909 CF |
37 | #include <windows.h> |
38 | #include <imagehlp.h> | |
2b008701 | 39 | #include <psapi.h> |
10325bc5 | 40 | #ifdef __CYGWIN__ |
b7ff339d | 41 | #include <wchar.h> |
403d9909 | 42 | #include <sys/cygwin.h> |
b7ff339d | 43 | #include <cygwin/version.h> |
10325bc5 | 44 | #endif |
cad9cd60 | 45 | |
24e60978 | 46 | #include "buildsym.h" |
0ba1096a | 47 | #include "filenames.h" |
1ef980b9 SC |
48 | #include "symfile.h" |
49 | #include "objfiles.h" | |
92107356 | 50 | #include "gdb_bfd.h" |
de1b3c3d | 51 | #include "gdb_obstack.h" |
fdfa3315 | 52 | #include "gdbthread.h" |
24e60978 | 53 | #include "gdbcmd.h" |
1e37c281 | 54 | #include <unistd.h> |
4646aa9d | 55 | #include "exec.h" |
3ee6f623 | 56 | #include "solist.h" |
3cb8e7f6 | 57 | #include "solib.h" |
de1b3c3d | 58 | #include "xml-support.h" |
24e60978 | 59 | |
6c7de422 MK |
60 | #include "i386-tdep.h" |
61 | #include "i387-tdep.h" | |
62 | ||
31b060a2 CF |
63 | #include "windows-tdep.h" |
64 | #include "windows-nat.h" | |
df7e5265 | 65 | #include "x86-nat.h" |
ecc13e53 | 66 | #include "complaints.h" |
51a9c8c5 | 67 | #include "inf-child.h" |
de1b3c3d | 68 | |
418c6cb3 | 69 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
70 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
71 | #define DebugBreakProcess dyn_DebugBreakProcess | |
72 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
73 | #define EnumProcessModules dyn_EnumProcessModules | |
2b008701 | 74 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
75 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
76 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
77 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
78 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
2b008701 | 79 | |
43499ea3 PA |
80 | typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL, |
81 | PTOKEN_PRIVILEGES, | |
82 | DWORD, PTOKEN_PRIVILEGES, | |
83 | PDWORD); | |
84 | static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges; | |
85 | ||
86 | typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD); | |
87 | static DebugActiveProcessStop_ftype *DebugActiveProcessStop; | |
88 | ||
89 | typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE); | |
90 | static DebugBreakProcess_ftype *DebugBreakProcess; | |
91 | ||
92 | typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL); | |
93 | static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit; | |
94 | ||
95 | typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD, | |
96 | LPDWORD); | |
97 | static EnumProcessModules_ftype *EnumProcessModules; | |
98 | ||
99 | typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE, | |
100 | LPMODULEINFO, DWORD); | |
101 | static GetModuleInformation_ftype *GetModuleInformation; | |
102 | ||
103 | typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID); | |
104 | static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA; | |
105 | ||
106 | typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE); | |
107 | static OpenProcessToken_ftype *OpenProcessToken; | |
108 | ||
109 | typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL, | |
110 | CONSOLE_FONT_INFO *); | |
111 | static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont; | |
112 | ||
113 | typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD); | |
114 | static GetConsoleFontSize_ftype *GetConsoleFontSize; | |
2b008701 | 115 | |
b3c613f2 CF |
116 | #undef STARTUPINFO |
117 | #undef CreateProcess | |
118 | #undef GetModuleFileNameEx | |
119 | ||
120 | #ifndef __CYGWIN__ | |
121 | # define __PMAX (MAX_PATH + 1) | |
43499ea3 PA |
122 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD); |
123 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
124 | # define STARTUPINFO STARTUPINFOA |
125 | # define CreateProcess CreateProcessA | |
126 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
127 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
128 | #else | |
129 | # define __PMAX PATH_MAX | |
581e13c1 | 130 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
131 | static CORE_ADDR cygwin_load_start; |
132 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
133 | # define __USEWIDE |
134 | typedef wchar_t cygwin_buf_t; | |
43499ea3 PA |
135 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, |
136 | LPWSTR, DWORD); | |
137 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
138 | # define STARTUPINFO STARTUPINFOW |
139 | # define CreateProcess CreateProcessW | |
140 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
141 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 142 | #endif |
a244bdca | 143 | |
581e13c1 MS |
144 | static int have_saved_context; /* True if we've saved context from a |
145 | cygwin signal. */ | |
146 | static CONTEXT saved_context; /* Containes the saved context from a | |
147 | cygwin signal. */ | |
a244bdca | 148 | |
0714f9bf SS |
149 | /* If we're not using the old Cygwin header file set, define the |
150 | following which never should have been in the generic Win32 API | |
581e13c1 | 151 | headers in the first place since they were our own invention... */ |
0714f9bf | 152 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 153 | enum |
8e860359 CF |
154 | { |
155 | FLAG_TRACE_BIT = 0x100, | |
8e860359 | 156 | }; |
0714f9bf SS |
157 | #endif |
158 | ||
5851ab76 JB |
159 | #ifndef CONTEXT_EXTENDED_REGISTERS |
160 | /* This macro is only defined on ia32. It only makes sense on this target, | |
161 | so define it as zero if not already defined. */ | |
162 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
163 | #endif | |
164 | ||
f0666312 JT |
165 | #define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \ |
166 | | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \ | |
167 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 168 | |
41b4aadc | 169 | static uintptr_t dr[8]; |
87a45c96 CF |
170 | static int debug_registers_changed; |
171 | static int debug_registers_used; | |
16d905e2 CF |
172 | |
173 | static int windows_initialization_done; | |
6537bb24 | 174 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 175 | |
3cee93ac | 176 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 177 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
178 | #ifndef _CYGWIN_SIGNAL_STRING |
179 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
180 | #endif | |
3cee93ac | 181 | |
29fe111d | 182 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 183 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
184 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
185 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
186 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 187 | |
bfedc46a | 188 | static void windows_interrupt (struct target_ops *self, ptid_t); |
02529b48 | 189 | static int windows_thread_alive (struct target_ops *, ptid_t); |
7d85a9c0 | 190 | static void windows_kill_inferior (struct target_ops *); |
3cee93ac | 191 | |
9bb9e8ad PM |
192 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
193 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 194 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 195 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 196 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 197 | |
a493e3e2 | 198 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
581e13c1 | 199 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 200 | |
3cee93ac | 201 | /* Thread information structure used to track information that is |
6537bb24 | 202 | not available in gdb's thread structure. */ |
876d1cd7 | 203 | typedef struct windows_thread_info_struct |
3a4b77d8 | 204 | { |
876d1cd7 | 205 | struct windows_thread_info_struct *next; |
3a4b77d8 JM |
206 | DWORD id; |
207 | HANDLE h; | |
711e434b | 208 | CORE_ADDR thread_local_base; |
3a4b77d8 | 209 | char *name; |
6537bb24 | 210 | int suspended; |
3ade5333 | 211 | int reload_context; |
3a4b77d8 | 212 | CONTEXT context; |
1e37c281 | 213 | STACKFRAME sf; |
8e860359 | 214 | } |
876d1cd7 | 215 | windows_thread_info; |
1e37c281 | 216 | |
876d1cd7 | 217 | static windows_thread_info thread_head; |
24e60978 | 218 | |
581e13c1 | 219 | /* The process and thread handles for the above context. */ |
24e60978 | 220 | |
3cee93ac CF |
221 | static DEBUG_EVENT current_event; /* The current debug event from |
222 | WaitForDebugEvent */ | |
223 | static HANDLE current_process_handle; /* Currently executing process */ | |
876d1cd7 | 224 | static windows_thread_info *current_thread; /* Info on currently selected thread */ |
349b409f | 225 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 | 226 | |
581e13c1 | 227 | /* Counts of things. */ |
24e60978 SC |
228 | static int exception_count = 0; |
229 | static int event_count = 0; | |
dfe7f3ac | 230 | static int saw_create; |
bf25528d | 231 | static int open_process_used = 0; |
24e60978 | 232 | |
581e13c1 | 233 | /* User options. */ |
24e60978 | 234 | static int new_console = 0; |
10325bc5 | 235 | #ifdef __CYGWIN__ |
09280ddf | 236 | static int cygwin_exceptions = 0; |
10325bc5 | 237 | #endif |
1e37c281 | 238 | static int new_group = 1; |
dfe7f3ac CF |
239 | static int debug_exec = 0; /* show execution */ |
240 | static int debug_events = 0; /* show events from kernel */ | |
241 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 242 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
243 | static int useshell = 0; /* use shell for subprocesses */ |
244 | ||
7e63b4e4 | 245 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 246 | in the windows exception context vector. |
24e60978 | 247 | |
3cee93ac | 248 | It also contains the bit mask needed to load the register in question. |
24e60978 | 249 | |
7e63b4e4 JB |
250 | The contents of this table can only be computed by the units |
251 | that provide CPU-specific support for Windows native debugging. | |
252 | These units should set the table by calling | |
dc05df57 | 253 | windows_set_context_register_offsets. |
7e63b4e4 | 254 | |
24e60978 SC |
255 | One day we could read a reg, we could inspect the context we |
256 | already have loaded, if it doesn't have the bit set that we need, | |
257 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 258 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
259 | write a register, first we have to ensure that the context contains |
260 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 261 | out bit. */ |
24e60978 | 262 | |
7e63b4e4 | 263 | static const int *mappings; |
d3a09475 | 264 | |
d40dc7a8 JB |
265 | /* The function to use in order to determine whether a register is |
266 | a segment register or not. */ | |
267 | static segment_register_p_ftype *segment_register_p; | |
268 | ||
24e60978 | 269 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 270 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
271 | |
272 | struct xlate_exception | |
273 | { | |
274 | int them; | |
2ea28649 | 275 | enum gdb_signal us; |
24e60978 SC |
276 | }; |
277 | ||
24e60978 SC |
278 | static const struct xlate_exception |
279 | xlate[] = | |
280 | { | |
a493e3e2 PA |
281 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
282 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
283 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
284 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
285 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
286 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE}, | |
56db1d67 | 287 | {-1, GDB_SIGNAL_UNKNOWN}}; |
24e60978 | 288 | |
7e63b4e4 JB |
289 | /* Set the MAPPINGS static global to OFFSETS. |
290 | See the description of MAPPINGS for more details. */ | |
291 | ||
292 | void | |
dc05df57 | 293 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
294 | { |
295 | mappings = offsets; | |
296 | } | |
297 | ||
d40dc7a8 JB |
298 | /* See windows-nat.h. */ |
299 | ||
300 | void | |
301 | windows_set_segment_register_p (segment_register_p_ftype *fun) | |
302 | { | |
303 | segment_register_p = fun; | |
304 | } | |
305 | ||
fa4ba8da PM |
306 | static void |
307 | check (BOOL ok, const char *file, int line) | |
308 | { | |
309 | if (!ok) | |
d50a0ce2 CV |
310 | printf_filtered ("error return %s:%d was %u\n", file, line, |
311 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
312 | } |
313 | ||
6537bb24 PA |
314 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
315 | then also retrieve the context for this thread. If GET_CONTEXT is | |
316 | negative, then don't suspend the thread. */ | |
876d1cd7 | 317 | static windows_thread_info * |
3cee93ac | 318 | thread_rec (DWORD id, int get_context) |
24e60978 | 319 | { |
876d1cd7 | 320 | windows_thread_info *th; |
3cee93ac | 321 | |
3a4b77d8 | 322 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
323 | if (th->id == id) |
324 | { | |
6537bb24 | 325 | if (!th->suspended && get_context) |
3cee93ac | 326 | { |
8a892701 | 327 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
328 | { |
329 | if (SuspendThread (th->h) == (DWORD) -1) | |
330 | { | |
331 | DWORD err = GetLastError (); | |
22128028 | 332 | |
17617f2d EZ |
333 | /* We get Access Denied (5) when trying to suspend |
334 | threads that Windows started on behalf of the | |
335 | debuggee, usually when those threads are just | |
5d9c55d3 JT |
336 | about to exit. |
337 | We can get Invalid Handle (6) if the main thread | |
338 | has exited. */ | |
339 | if (err != ERROR_INVALID_HANDLE | |
340 | && err != ERROR_ACCESS_DENIED) | |
17617f2d EZ |
341 | warning (_("SuspendThread (tid=0x%x) failed." |
342 | " (winerr %u)"), | |
343 | (unsigned) id, (unsigned) err); | |
344 | th->suspended = -1; | |
6537bb24 | 345 | } |
17617f2d EZ |
346 | else |
347 | th->suspended = 1; | |
6537bb24 | 348 | } |
3cee93ac | 349 | else if (get_context < 0) |
6537bb24 | 350 | th->suspended = -1; |
3ade5333 | 351 | th->reload_context = 1; |
3cee93ac CF |
352 | } |
353 | return th; | |
354 | } | |
355 | ||
356 | return NULL; | |
357 | } | |
358 | ||
2dc38344 | 359 | /* Add a thread to the thread list. */ |
876d1cd7 | 360 | static windows_thread_info * |
711e434b | 361 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb) |
3cee93ac | 362 | { |
876d1cd7 | 363 | windows_thread_info *th; |
2dc38344 PA |
364 | DWORD id; |
365 | ||
366 | gdb_assert (ptid_get_tid (ptid) != 0); | |
367 | ||
368 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
369 | |
370 | if ((th = thread_rec (id, FALSE))) | |
371 | return th; | |
372 | ||
876d1cd7 | 373 | th = XCNEW (windows_thread_info); |
3cee93ac CF |
374 | th->id = id; |
375 | th->h = h; | |
711e434b | 376 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
377 | th->next = thread_head.next; |
378 | thread_head.next = th; | |
2dc38344 PA |
379 | add_thread (ptid); |
380 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
381 | if (debug_registers_used) |
382 | { | |
383 | /* Only change the value of the debug registers. */ | |
384 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
385 | CHECK (GetThreadContext (th->h, &th->context)); | |
386 | th->context.Dr0 = dr[0]; | |
387 | th->context.Dr1 = dr[1]; | |
388 | th->context.Dr2 = dr[2]; | |
389 | th->context.Dr3 = dr[3]; | |
6537bb24 | 390 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
391 | th->context.Dr7 = dr[7]; |
392 | CHECK (SetThreadContext (th->h, &th->context)); | |
393 | th->context.ContextFlags = 0; | |
394 | } | |
3cee93ac | 395 | return th; |
24e60978 SC |
396 | } |
397 | ||
3cee93ac | 398 | /* Clear out any old thread list and reintialize it to a |
581e13c1 | 399 | pristine state. */ |
24e60978 | 400 | static void |
dc05df57 | 401 | windows_init_thread_list (void) |
24e60978 | 402 | { |
876d1cd7 | 403 | windows_thread_info *th = &thread_head; |
3cee93ac | 404 | |
dc05df57 | 405 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
406 | init_thread_list (); |
407 | while (th->next != NULL) | |
24e60978 | 408 | { |
876d1cd7 | 409 | windows_thread_info *here = th->next; |
3cee93ac | 410 | th->next = here->next; |
b8c9b27d | 411 | xfree (here); |
24e60978 | 412 | } |
059198c1 | 413 | thread_head.next = NULL; |
3cee93ac CF |
414 | } |
415 | ||
581e13c1 | 416 | /* Delete a thread from the list of threads. */ |
3cee93ac | 417 | static void |
e0ea48a0 | 418 | windows_delete_thread (ptid_t ptid, DWORD exit_code) |
3cee93ac | 419 | { |
876d1cd7 | 420 | windows_thread_info *th; |
2dc38344 PA |
421 | DWORD id; |
422 | ||
423 | gdb_assert (ptid_get_tid (ptid) != 0); | |
424 | ||
425 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
426 | |
427 | if (info_verbose) | |
2dc38344 | 428 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
e0ea48a0 EZ |
429 | else if (print_thread_events && id != main_thread_id) |
430 | printf_unfiltered (_("[%s exited with code %u]\n"), | |
564eac42 | 431 | target_pid_to_str (ptid), (unsigned) exit_code); |
2dc38344 | 432 | delete_thread (ptid); |
3cee93ac CF |
433 | |
434 | for (th = &thread_head; | |
435 | th->next != NULL && th->next->id != id; | |
436 | th = th->next) | |
437 | continue; | |
438 | ||
439 | if (th->next != NULL) | |
24e60978 | 440 | { |
876d1cd7 | 441 | windows_thread_info *here = th->next; |
3cee93ac | 442 | th->next = here->next; |
b8c9b27d | 443 | xfree (here); |
24e60978 SC |
444 | } |
445 | } | |
446 | ||
3cee93ac | 447 | static void |
dc05df57 | 448 | do_windows_fetch_inferior_registers (struct regcache *regcache, int r) |
24e60978 | 449 | { |
1e37c281 | 450 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
451 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
452 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 453 | long l; |
6c7de422 | 454 | |
3ade5333 | 455 | if (!current_thread) |
d6dc8049 | 456 | return; /* Windows sometimes uses a non-existent thread id in its |
581e13c1 | 457 | events. */ |
3ade5333 CF |
458 | |
459 | if (current_thread->reload_context) | |
460 | { | |
f20c58f5 | 461 | #ifdef __CYGWIN__ |
a244bdca CF |
462 | if (have_saved_context) |
463 | { | |
581e13c1 MS |
464 | /* Lie about where the program actually is stopped since |
465 | cygwin has informed us that we should consider the signal | |
466 | to have occurred at another location which is stored in | |
467 | "saved_context. */ | |
468 | memcpy (¤t_thread->context, &saved_context, | |
469 | __COPY_CONTEXT_SIZE); | |
a244bdca CF |
470 | have_saved_context = 0; |
471 | } | |
472 | else | |
cb832706 | 473 | #endif |
a244bdca | 474 | { |
876d1cd7 | 475 | windows_thread_info *th = current_thread; |
a244bdca | 476 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 477 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 478 | /* Copy dr values from that thread. |
581e13c1 MS |
479 | But only if there were not modified since last stop. |
480 | PR gdb/2388 */ | |
88616312 PM |
481 | if (!debug_registers_changed) |
482 | { | |
483 | dr[0] = th->context.Dr0; | |
484 | dr[1] = th->context.Dr1; | |
485 | dr[2] = th->context.Dr2; | |
486 | dr[3] = th->context.Dr3; | |
487 | dr[6] = th->context.Dr6; | |
488 | dr[7] = th->context.Dr7; | |
489 | } | |
a244bdca | 490 | } |
3ade5333 CF |
491 | current_thread->reload_context = 0; |
492 | } | |
493 | ||
20a6ec49 | 494 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 495 | { |
8e860359 | 496 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 497 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 498 | } |
20a6ec49 | 499 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 500 | { |
8e860359 | 501 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 502 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 503 | } |
d40dc7a8 JB |
504 | else if (segment_register_p (r)) |
505 | { | |
506 | /* GDB treats segment registers as 32bit registers, but they are | |
507 | in fact only 16 bits long. Make sure we do not read extra | |
508 | bits from our source buffer. */ | |
509 | l = *((long *) context_offset) & 0xffff; | |
510 | regcache_raw_supply (regcache, r, (char *) &l); | |
511 | } | |
1e37c281 | 512 | else if (r >= 0) |
56be3814 | 513 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 514 | else |
24e60978 | 515 | { |
20a6ec49 | 516 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
dc05df57 | 517 | do_windows_fetch_inferior_registers (regcache, r); |
24e60978 | 518 | } |
3cee93ac CF |
519 | } |
520 | ||
521 | static void | |
28439f5e PA |
522 | windows_fetch_inferior_registers (struct target_ops *ops, |
523 | struct regcache *regcache, int r) | |
3cee93ac | 524 | { |
2dc38344 | 525 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 526 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 527 | thread id in its events. */ |
3ade5333 | 528 | if (current_thread) |
dc05df57 | 529 | do_windows_fetch_inferior_registers (regcache, r); |
3cee93ac CF |
530 | } |
531 | ||
532 | static void | |
dc05df57 | 533 | do_windows_store_inferior_registers (const struct regcache *regcache, int r) |
3cee93ac | 534 | { |
3ade5333 | 535 | if (!current_thread) |
581e13c1 | 536 | /* Windows sometimes uses a non-existent thread id in its events. */; |
3ade5333 | 537 | else if (r >= 0) |
56be3814 | 538 | regcache_raw_collect (regcache, r, |
822c9732 | 539 | ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
540 | else |
541 | { | |
40a6adc1 | 542 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
dc05df57 | 543 | do_windows_store_inferior_registers (regcache, r); |
24e60978 SC |
544 | } |
545 | } | |
546 | ||
581e13c1 | 547 | /* Store a new register value into the current thread context. */ |
3cee93ac | 548 | static void |
28439f5e PA |
549 | windows_store_inferior_registers (struct target_ops *ops, |
550 | struct regcache *regcache, int r) | |
3cee93ac | 551 | { |
2dc38344 | 552 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 553 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 554 | thread id in its events. */ |
3ade5333 | 555 | if (current_thread) |
dc05df57 | 556 | do_windows_store_inferior_registers (regcache, r); |
3cee93ac | 557 | } |
24e60978 | 558 | |
450005e7 | 559 | /* Encapsulate the information required in a call to |
581e13c1 | 560 | symbol_file_add_args. */ |
8a892701 CF |
561 | struct safe_symbol_file_add_args |
562 | { | |
563 | char *name; | |
564 | int from_tty; | |
565 | struct section_addr_info *addrs; | |
566 | int mainline; | |
567 | int flags; | |
7c5c87c0 | 568 | struct ui_file *err, *out; |
8a892701 CF |
569 | struct objfile *ret; |
570 | }; | |
571 | ||
581e13c1 | 572 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 573 | struct lm_info |
02e423b9 | 574 | { |
d3653bf6 | 575 | LPVOID load_addr; |
3ee6f623 CF |
576 | }; |
577 | ||
578 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 579 | |
de1b3c3d | 580 | static struct so_list * |
dc05df57 | 581 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 582 | { |
3ee6f623 | 583 | struct so_list *so; |
d0d0ab16 CV |
584 | char *p; |
585 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
586 | char buf[__PMAX]; |
587 | char cwd[__PMAX]; | |
3f8ad85b CF |
588 | WIN32_FIND_DATA w32_fd; |
589 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 590 | |
6badb179 CF |
591 | if (h == INVALID_HANDLE_VALUE) |
592 | strcpy (buf, name); | |
593 | else | |
3f8ad85b | 594 | { |
c914e0cc CF |
595 | FindClose (h); |
596 | strcpy (buf, name); | |
597 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
598 | { | |
599 | p = strrchr (buf, '\\'); | |
600 | if (p) | |
601 | p[1] = '\0'; | |
602 | SetCurrentDirectory (buf); | |
603 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
604 | SetCurrentDirectory (cwd); | |
605 | } | |
3f8ad85b | 606 | } |
3ee6f623 CF |
607 | if (strcasecmp (buf, "ntdll.dll") == 0) |
608 | { | |
609 | GetSystemDirectory (buf, sizeof (buf)); | |
610 | strcat (buf, "\\ntdll.dll"); | |
611 | } | |
d0d0ab16 | 612 | #else |
b3c613f2 | 613 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 614 | |
b3c613f2 | 615 | buf[0] = 0; |
d0d0ab16 CV |
616 | if (access (name, F_OK) != 0) |
617 | { | |
618 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 619 | #ifdef __USEWIDE |
d0d0ab16 CV |
620 | { |
621 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
622 | wcscat (buf, L"\\ntdll.dll"); | |
623 | } | |
b3c613f2 CF |
624 | #else |
625 | { | |
626 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
627 | strcat (buf, "\\ntdll.dll"); | |
628 | } | |
629 | #endif | |
d0d0ab16 CV |
630 | } |
631 | #endif | |
41bf6aca | 632 | so = XCNEW (struct so_list); |
8d749320 | 633 | so->lm_info = XNEW (struct lm_info); |
3ee6f623 | 634 | so->lm_info->load_addr = load_addr; |
de1b3c3d | 635 | strcpy (so->so_original_name, name); |
10325bc5 PA |
636 | #ifndef __CYGWIN__ |
637 | strcpy (so->so_name, buf); | |
638 | #else | |
d0d0ab16 CV |
639 | if (buf[0]) |
640 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
641 | SO_NAME_MAX_PATH_SIZE); | |
642 | else | |
643 | { | |
60c5c021 | 644 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
645 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
646 | { | |
647 | strcpy (so->so_name, rname); | |
648 | free (rname); | |
649 | } | |
650 | else | |
651 | error (_("dll path too long")); | |
652 | } | |
de1b3c3d PA |
653 | /* Record cygwin1.dll .text start/end. */ |
654 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
655 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
656 | { | |
657 | bfd *abfd; | |
658 | asection *text = NULL; | |
659 | CORE_ADDR text_vma; | |
8e860359 | 660 | |
1c00ec6b | 661 | abfd = gdb_bfd_open (so->so_name, "pei-i386", -1); |
a244bdca | 662 | |
de1b3c3d PA |
663 | if (!abfd) |
664 | return so; | |
665 | ||
666 | if (bfd_check_format (abfd, bfd_object)) | |
667 | text = bfd_get_section_by_name (abfd, ".text"); | |
668 | ||
669 | if (!text) | |
670 | { | |
cbb099e8 | 671 | gdb_bfd_unref (abfd); |
de1b3c3d PA |
672 | return so; |
673 | } | |
674 | ||
7a9dd1b2 | 675 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 676 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
677 | file header and the section alignment. */ |
678 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
679 | load_addr + 0x1000); | |
dc05df57 | 680 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); |
de1b3c3d | 681 | |
cbb099e8 | 682 | gdb_bfd_unref (abfd); |
de1b3c3d | 683 | } |
10325bc5 | 684 | #endif |
de1b3c3d PA |
685 | |
686 | return so; | |
8e860359 CF |
687 | } |
688 | ||
3ee6f623 | 689 | static char * |
dfe7f3ac CF |
690 | get_image_name (HANDLE h, void *address, int unicode) |
691 | { | |
d0d0ab16 | 692 | #ifdef __CYGWIN__ |
b3c613f2 | 693 | static char buf[__PMAX]; |
d0d0ab16 | 694 | #else |
b3c613f2 | 695 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 696 | #endif |
dfe7f3ac CF |
697 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
698 | char *address_ptr; | |
699 | int len = 0; | |
700 | char b[2]; | |
5732a500 | 701 | SIZE_T done; |
dfe7f3ac CF |
702 | |
703 | /* Attempt to read the name of the dll that was detected. | |
704 | This is documented to work only when actively debugging | |
581e13c1 | 705 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
706 | if (address == NULL) |
707 | return NULL; | |
708 | ||
dfe7f3ac | 709 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
710 | address isn't null. */ |
711 | if (!ReadProcessMemory (h, address, &address_ptr, | |
712 | sizeof (address_ptr), &done) | |
6f17862b | 713 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
714 | return NULL; |
715 | ||
581e13c1 | 716 | /* Find the length of the string. */ |
6f17862b CF |
717 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
718 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
719 | continue; | |
dfe7f3ac CF |
720 | |
721 | if (!unicode) | |
722 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
723 | else | |
724 | { | |
725 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
726 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
727 | &done); | |
d0d0ab16 | 728 | #ifdef __CYGWIN__ |
b3c613f2 | 729 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
730 | #else |
731 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
732 | 0, 0); | |
733 | #endif | |
dfe7f3ac CF |
734 | } |
735 | ||
736 | return buf; | |
737 | } | |
738 | ||
1cd9feab JB |
739 | /* Handle a DLL load event, and return 1. |
740 | ||
741 | This function assumes that this event did not occur during inferior | |
742 | initialization, where their event info may be incomplete (see | |
743 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
744 | on how we handle DLL loading during that phase). */ | |
745 | ||
1750a5ef | 746 | static int |
0a65a603 | 747 | handle_load_dll (void *dummy) |
24e60978 | 748 | { |
3a4b77d8 | 749 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
1cd9feab | 750 | char *dll_name; |
24e60978 | 751 | |
94481b8c JB |
752 | /* Try getting the DLL name via the lpImageName field of the event. |
753 | Note that Microsoft documents this fields as strictly optional, | |
754 | in the sense that it might be NULL. And the first DLL event in | |
755 | particular is explicitly documented as "likely not pass[ed]" | |
756 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
757 | dll_name = get_image_name (current_process_handle, |
758 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
759 | if (!dll_name) |
760 | return 1; | |
761 | ||
dc05df57 | 762 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 763 | solib_end = solib_end->next; |
450005e7 | 764 | |
a74ce742 PM |
765 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
766 | host_address_to_string (solib_end->lm_info->load_addr))); | |
7488902c | 767 | |
450005e7 CF |
768 | return 1; |
769 | } | |
770 | ||
3ee6f623 | 771 | static void |
dc05df57 | 772 | windows_free_so (struct so_list *so) |
3ee6f623 | 773 | { |
3ee6f623 CF |
774 | if (so->lm_info) |
775 | xfree (so->lm_info); | |
de1b3c3d | 776 | xfree (so); |
3cb8e7f6 CF |
777 | } |
778 | ||
3be75f87 JB |
779 | /* Handle a DLL unload event. |
780 | Return 1 if successful, or zero otherwise. | |
781 | ||
782 | This function assumes that this event did not occur during inferior | |
783 | initialization, where their event info may be incomplete (see | |
784 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
785 | on how we handle DLL loading during that phase). */ | |
786 | ||
d3ff4a77 | 787 | static int |
0a65a603 | 788 | handle_unload_dll (void *dummy) |
d3ff4a77 | 789 | { |
d3653bf6 | 790 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 791 | struct so_list *so; |
d3ff4a77 CF |
792 | |
793 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 794 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 795 | { |
3ee6f623 | 796 | struct so_list *sodel = so->next; |
a25cd31f | 797 | |
d3ff4a77 CF |
798 | so->next = sodel->next; |
799 | if (!so->next) | |
800 | solib_end = so; | |
7488902c PM |
801 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
802 | ||
dc05df57 | 803 | windows_free_so (sodel); |
d3ff4a77 CF |
804 | return 1; |
805 | } | |
3929abe9 | 806 | |
ecc13e53 JB |
807 | /* We did not find any DLL that was previously loaded at this address, |
808 | so register a complaint. We do not report an error, because we have | |
809 | observed that this may be happening under some circumstances. For | |
810 | instance, running 32bit applications on x64 Windows causes us to receive | |
811 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
812 | events are apparently caused by the WOW layer, the interface between | |
813 | 32bit and 64bit worlds). */ | |
814 | complaint (&symfile_complaints, _("dll starting at %s not found."), | |
815 | host_address_to_string (lpBaseOfDll)); | |
d3ff4a77 CF |
816 | |
817 | return 0; | |
818 | } | |
819 | ||
581e13c1 | 820 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 821 | static void |
dc05df57 | 822 | windows_clear_solib (void) |
450005e7 | 823 | { |
450005e7 CF |
824 | solib_start.next = NULL; |
825 | solib_end = &solib_start; | |
450005e7 | 826 | } |
295732ea | 827 | |
3cee93ac CF |
828 | /* Handle DEBUG_STRING output from child process. |
829 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 830 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
831 | static int |
832 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
833 | { | |
a244bdca CF |
834 | char *s = NULL; |
835 | int retval = 0; | |
3cee93ac CF |
836 | |
837 | if (!target_read_string | |
2c647436 PM |
838 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
839 | &s, 1024, 0) | |
3cee93ac | 840 | || !s || !*s) |
a244bdca | 841 | /* nothing to do */; |
61012eef | 842 | else if (!startswith (s, _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 843 | { |
10325bc5 | 844 | #ifdef __CYGWIN__ |
61012eef | 845 | if (!startswith (s, "cYg")) |
10325bc5 | 846 | #endif |
040ea00b JT |
847 | { |
848 | char *p = strchr (s, '\0'); | |
849 | ||
850 | if (p > s && *--p == '\n') | |
851 | *p = '\0'; | |
852 | warning (("%s"), s); | |
853 | } | |
3cee93ac | 854 | } |
f20c58f5 | 855 | #ifdef __CYGWIN__ |
d3a09475 | 856 | else |
3cee93ac | 857 | { |
581e13c1 MS |
858 | /* Got a cygwin signal marker. A cygwin signal is followed by |
859 | the signal number itself and then optionally followed by the | |
860 | thread id and address to saved context within the DLL. If | |
861 | these are supplied, then the given thread is assumed to have | |
862 | issued the signal and the context from the thread is assumed | |
863 | to be stored at the given address in the inferior. Tell gdb | |
864 | to treat this like a real signal. */ | |
3cee93ac | 865 | char *p; |
3929abe9 | 866 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
2ea28649 | 867 | int gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 868 | |
0714f9bf SS |
869 | ourstatus->value.sig = gotasig; |
870 | if (gotasig) | |
a244bdca CF |
871 | { |
872 | LPCVOID x; | |
2c15ef43 | 873 | SIZE_T n; |
c62fa0e2 | 874 | |
a244bdca CF |
875 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
876 | retval = strtoul (p, &p, 0); | |
877 | if (!retval) | |
878 | retval = main_thread_id; | |
40653b35 | 879 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 880 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
881 | &saved_context, |
882 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
883 | && n == __COPY_CONTEXT_SIZE) |
884 | have_saved_context = 1; | |
a244bdca | 885 | } |
3cee93ac | 886 | } |
cb832706 | 887 | #endif |
3cee93ac | 888 | |
a244bdca CF |
889 | if (s) |
890 | xfree (s); | |
891 | return retval; | |
3cee93ac | 892 | } |
24e60978 | 893 | |
c1748f97 PM |
894 | static int |
895 | display_selector (HANDLE thread, DWORD sel) | |
896 | { | |
897 | LDT_ENTRY info; | |
898 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
899 | { | |
900 | int base, limit; | |
d50a0ce2 | 901 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 902 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
903 | { |
904 | puts_filtered ("Segment not present\n"); | |
905 | return 0; | |
906 | } | |
c1748f97 PM |
907 | base = (info.HighWord.Bits.BaseHi << 24) + |
908 | (info.HighWord.Bits.BaseMid << 16) | |
909 | + info.BaseLow; | |
910 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
911 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 912 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
913 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
914 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 915 | puts_filtered(" 32-bit "); |
c1748f97 | 916 | else |
baa93fa6 | 917 | puts_filtered(" 16-bit "); |
c1748f97 PM |
918 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
919 | { | |
920 | case 0: | |
baa93fa6 CF |
921 | puts_filtered ("Data (Read-Only, Exp-up"); |
922 | break; | |
c1748f97 | 923 | case 1: |
baa93fa6 CF |
924 | puts_filtered ("Data (Read/Write, Exp-up"); |
925 | break; | |
c1748f97 | 926 | case 2: |
baa93fa6 CF |
927 | puts_filtered ("Unused segment ("); |
928 | break; | |
c1748f97 | 929 | case 3: |
baa93fa6 CF |
930 | puts_filtered ("Data (Read/Write, Exp-down"); |
931 | break; | |
c1748f97 | 932 | case 4: |
baa93fa6 CF |
933 | puts_filtered ("Code (Exec-Only, N.Conf"); |
934 | break; | |
c1748f97 | 935 | case 5: |
baa93fa6 | 936 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
937 | break; |
938 | case 6: | |
baa93fa6 | 939 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
940 | break; |
941 | case 7: | |
baa93fa6 | 942 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
943 | break; |
944 | default: | |
945 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
946 | } | |
947 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 948 | puts_filtered(", N.Acc"); |
c1748f97 PM |
949 | puts_filtered (")\n"); |
950 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
951 | puts_filtered("System selector "); | |
952 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
953 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 954 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
955 | else |
956 | puts_filtered ("Byte granular.\n"); | |
957 | return 1; | |
958 | } | |
959 | else | |
960 | { | |
5572ce1f PM |
961 | DWORD err = GetLastError (); |
962 | if (err == ERROR_NOT_SUPPORTED) | |
963 | printf_filtered ("Function not supported\n"); | |
964 | else | |
d50a0ce2 | 965 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
966 | return 0; |
967 | } | |
968 | } | |
969 | ||
970 | static void | |
971 | display_selectors (char * args, int from_tty) | |
972 | { | |
973 | if (!current_thread) | |
974 | { | |
975 | puts_filtered ("Impossible to display selectors now.\n"); | |
976 | return; | |
977 | } | |
978 | if (!args) | |
979 | { | |
980 | ||
981 | puts_filtered ("Selector $cs\n"); | |
982 | display_selector (current_thread->h, | |
baa93fa6 | 983 | current_thread->context.SegCs); |
c1748f97 PM |
984 | puts_filtered ("Selector $ds\n"); |
985 | display_selector (current_thread->h, | |
baa93fa6 | 986 | current_thread->context.SegDs); |
c1748f97 PM |
987 | puts_filtered ("Selector $es\n"); |
988 | display_selector (current_thread->h, | |
baa93fa6 | 989 | current_thread->context.SegEs); |
c1748f97 PM |
990 | puts_filtered ("Selector $ss\n"); |
991 | display_selector (current_thread->h, | |
baa93fa6 | 992 | current_thread->context.SegSs); |
c1748f97 PM |
993 | puts_filtered ("Selector $fs\n"); |
994 | display_selector (current_thread->h, | |
995 | current_thread->context.SegFs); | |
996 | puts_filtered ("Selector $gs\n"); | |
997 | display_selector (current_thread->h, | |
baa93fa6 | 998 | current_thread->context.SegGs); |
c1748f97 PM |
999 | } |
1000 | else | |
1001 | { | |
1002 | int sel; | |
1003 | sel = parse_and_eval_long (args); | |
1004 | printf_filtered ("Selector \"%s\"\n",args); | |
1005 | display_selector (current_thread->h, sel); | |
1006 | } | |
1007 | } | |
1008 | ||
7393af7c | 1009 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1010 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1011 | host_address_to_string (\ | |
1012 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1013 | |
36339ecd | 1014 | static int |
450005e7 | 1015 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1016 | { |
876d1cd7 | 1017 | windows_thread_info *th; |
29fe111d | 1018 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 1019 | |
29fe111d | 1020 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1021 | |
581e13c1 | 1022 | /* Record the context of the current thread. */ |
3cee93ac | 1023 | th = thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1024 | |
29fe111d | 1025 | switch (code) |
24e60978 | 1026 | { |
1ef980b9 | 1027 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c | 1028 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
a493e3e2 | 1029 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
10325bc5 | 1030 | #ifdef __CYGWIN__ |
8da8e0b3 | 1031 | { |
581e13c1 MS |
1032 | /* See if the access violation happened within the cygwin DLL |
1033 | itself. Cygwin uses a kind of exception handling to deal | |
1034 | with passed-in invalid addresses. gdb should not treat | |
1035 | these as real SEGVs since they will be silently handled by | |
1036 | cygwin. A real SEGV will (theoretically) be caught by | |
1037 | cygwin later in the process and will be sent as a | |
1038 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1039 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1040 | const char *fn; |
581e13c1 MS |
1041 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) |
1042 | current_event.u.Exception.ExceptionRecord.ExceptionAddress; | |
1043 | ||
1044 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1045 | && addr < cygwin_load_end)) | |
a244bdca | 1046 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
61012eef | 1047 | && startswith (fn, "KERNEL32!IsBad"))) |
8da8e0b3 CF |
1048 | return 0; |
1049 | } | |
10325bc5 | 1050 | #endif |
7393af7c PM |
1051 | break; |
1052 | case STATUS_STACK_OVERFLOW: | |
1053 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
a493e3e2 | 1054 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
7393af7c PM |
1055 | break; |
1056 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1057 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
a493e3e2 | 1058 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1059 | break; |
1060 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1061 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
a493e3e2 | 1062 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1063 | break; |
1064 | case STATUS_FLOAT_INEXACT_RESULT: | |
1065 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
a493e3e2 | 1066 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1067 | break; |
1068 | case STATUS_FLOAT_INVALID_OPERATION: | |
1069 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
a493e3e2 | 1070 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1071 | break; |
1072 | case STATUS_FLOAT_OVERFLOW: | |
1073 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
a493e3e2 | 1074 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1075 | break; |
1076 | case STATUS_FLOAT_STACK_CHECK: | |
1077 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
a493e3e2 | 1078 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 | 1079 | break; |
3b7c8b74 | 1080 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c | 1081 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
a493e3e2 | 1082 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1083 | break; |
3b7c8b74 | 1084 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c | 1085 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
a493e3e2 | 1086 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1087 | break; |
3b7c8b74 | 1088 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1089 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
a493e3e2 | 1090 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
3b7c8b74 | 1091 | break; |
7393af7c PM |
1092 | case STATUS_INTEGER_OVERFLOW: |
1093 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
a493e3e2 | 1094 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 SC |
1095 | break; |
1096 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1097 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
a493e3e2 | 1098 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 SC |
1099 | break; |
1100 | case DBG_CONTROL_C: | |
7393af7c | 1101 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
a493e3e2 | 1102 | ourstatus->value.sig = GDB_SIGNAL_INT; |
5b421780 PM |
1103 | break; |
1104 | case DBG_CONTROL_BREAK: | |
7393af7c | 1105 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
a493e3e2 | 1106 | ourstatus->value.sig = GDB_SIGNAL_INT; |
1ef980b9 SC |
1107 | break; |
1108 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1109 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
a493e3e2 | 1110 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 | 1111 | break; |
8227c82d | 1112 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c | 1113 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
a493e3e2 | 1114 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1115 | break; |
1116 | case EXCEPTION_PRIV_INSTRUCTION: | |
1117 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
a493e3e2 | 1118 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1119 | break; |
1120 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1121 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
a493e3e2 | 1122 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
8227c82d | 1123 | break; |
1ef980b9 | 1124 | default: |
581e13c1 | 1125 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1126 | if (current_event.u.Exception.dwFirstChance) |
95824559 | 1127 | return 0; |
d50a0ce2 CV |
1128 | printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n", |
1129 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
a74ce742 PM |
1130 | host_address_to_string ( |
1131 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
a493e3e2 | 1132 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
1ef980b9 | 1133 | break; |
24e60978 | 1134 | } |
24e60978 | 1135 | exception_count++; |
7393af7c | 1136 | last_sig = ourstatus->value.sig; |
36339ecd | 1137 | return 1; |
24e60978 SC |
1138 | } |
1139 | ||
17617f2d EZ |
1140 | /* Resume thread specified by ID, or all artificially suspended |
1141 | threads, if we are continuing execution. KILLED non-zero means we | |
1142 | have killed the inferior, so we should ignore weird errors due to | |
1143 | threads shutting down. */ | |
3cee93ac | 1144 | static BOOL |
17617f2d | 1145 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac CF |
1146 | { |
1147 | int i; | |
876d1cd7 | 1148 | windows_thread_info *th; |
3cee93ac CF |
1149 | BOOL res; |
1150 | ||
0c3d84be | 1151 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n", |
d50a0ce2 CV |
1152 | (unsigned) current_event.dwProcessId, |
1153 | (unsigned) current_event.dwThreadId, | |
dfe7f3ac | 1154 | continue_status == DBG_CONTINUE ? |
7393af7c | 1155 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1156 | |
1157 | for (th = &thread_head; (th = th->next) != NULL;) | |
1158 | if ((id == -1 || id == (int) th->id) | |
1159 | && th->suspended) | |
1160 | { | |
1161 | if (debug_registers_changed) | |
1162 | { | |
1163 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1164 | th->context.Dr0 = dr[0]; | |
1165 | th->context.Dr1 = dr[1]; | |
1166 | th->context.Dr2 = dr[2]; | |
1167 | th->context.Dr3 = dr[3]; | |
1168 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1169 | th->context.Dr7 = dr[7]; | |
1170 | } | |
1171 | if (th->context.ContextFlags) | |
1172 | { | |
17617f2d EZ |
1173 | DWORD ec = 0; |
1174 | ||
1175 | if (GetExitCodeThread (th->h, &ec) | |
1176 | && ec == STILL_ACTIVE) | |
1177 | { | |
1178 | BOOL status = SetThreadContext (th->h, &th->context); | |
1179 | ||
1180 | if (!killed) | |
1181 | CHECK (status); | |
1182 | } | |
6537bb24 PA |
1183 | th->context.ContextFlags = 0; |
1184 | } | |
1185 | if (th->suspended > 0) | |
1186 | (void) ResumeThread (th->h); | |
1187 | th->suspended = 0; | |
1188 | } | |
1189 | ||
0714f9bf SS |
1190 | res = ContinueDebugEvent (current_event.dwProcessId, |
1191 | current_event.dwThreadId, | |
1192 | continue_status); | |
3cee93ac | 1193 | |
68ffc902 JT |
1194 | if (!res) |
1195 | error (_("Failed to resume program execution" | |
1196 | " (ContinueDebugEvent failed, error %u)"), | |
1197 | (unsigned int) GetLastError ()); | |
1198 | ||
fa4ba8da | 1199 | debug_registers_changed = 0; |
3cee93ac CF |
1200 | return res; |
1201 | } | |
1202 | ||
d6dc8049 CF |
1203 | /* Called in pathological case where Windows fails to send a |
1204 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1205 | static DWORD |
5439edaa | 1206 | fake_create_process (void) |
3ade5333 CF |
1207 | { |
1208 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1209 | current_event.dwProcessId); | |
bf25528d CF |
1210 | if (current_process_handle != NULL) |
1211 | open_process_used = 1; | |
1212 | else | |
1213 | { | |
d50a0ce2 CV |
1214 | error (_("OpenProcess call failed, GetLastError = %u"), |
1215 | (unsigned) GetLastError ()); | |
bf25528d CF |
1216 | /* We can not debug anything in that case. */ |
1217 | } | |
3ade5333 | 1218 | main_thread_id = current_event.dwThreadId; |
711e434b PM |
1219 | current_thread = windows_add_thread ( |
1220 | ptid_build (current_event.dwProcessId, 0, | |
1221 | current_event.dwThreadId), | |
1222 | current_event.u.CreateThread.hThread, | |
1223 | current_event.u.CreateThread.lpThreadLocalBase); | |
3ade5333 CF |
1224 | return main_thread_id; |
1225 | } | |
1226 | ||
a244bdca | 1227 | static void |
28439f5e | 1228 | windows_resume (struct target_ops *ops, |
2ea28649 | 1229 | ptid_t ptid, int step, enum gdb_signal sig) |
a244bdca | 1230 | { |
876d1cd7 | 1231 | windows_thread_info *th; |
a244bdca CF |
1232 | DWORD continue_status = DBG_CONTINUE; |
1233 | ||
2dc38344 PA |
1234 | /* A specific PTID means `step only this thread id'. */ |
1235 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1236 | ||
1237 | /* If we're continuing all threads, it's the current inferior that | |
1238 | should be handled specially. */ | |
1239 | if (resume_all) | |
1240 | ptid = inferior_ptid; | |
a244bdca | 1241 | |
a493e3e2 | 1242 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1243 | { |
1244 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1245 | { | |
1246 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1247 | } | |
1248 | else if (sig == last_sig) | |
1249 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1250 | else | |
1251 | #if 0 | |
1252 | /* This code does not seem to work, because | |
1253 | the kernel does probably not consider changes in the ExceptionRecord | |
1254 | structure when passing the exception to the inferior. | |
1255 | Note that this seems possible in the exception handler itself. */ | |
1256 | { | |
1257 | int i; | |
1258 | for (i = 0; xlate[i].them != -1; i++) | |
1259 | if (xlate[i].us == sig) | |
1260 | { | |
581e13c1 MS |
1261 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
1262 | = xlate[i].them; | |
a244bdca CF |
1263 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1264 | break; | |
1265 | } | |
1266 | if (continue_status == DBG_CONTINUE) | |
1267 | { | |
1268 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1269 | } | |
1270 | } | |
1271 | #endif | |
23942819 | 1272 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1273 | last_sig)); |
1274 | } | |
1275 | ||
a493e3e2 | 1276 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1277 | |
dc05df57 | 1278 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1279 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca | 1280 | |
581e13c1 | 1281 | /* Get context for currently selected thread. */ |
2dc38344 | 1282 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1283 | if (th) |
1284 | { | |
1285 | if (step) | |
1286 | { | |
581e13c1 | 1287 | /* Single step by setting t bit. */ |
a97b0ac8 UW |
1288 | struct regcache *regcache = get_current_regcache (); |
1289 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1290 | windows_fetch_inferior_registers (ops, regcache, | |
1291 | gdbarch_ps_regnum (gdbarch)); | |
a244bdca CF |
1292 | th->context.EFlags |= FLAG_TRACE_BIT; |
1293 | } | |
1294 | ||
1295 | if (th->context.ContextFlags) | |
1296 | { | |
1297 | if (debug_registers_changed) | |
1298 | { | |
1299 | th->context.Dr0 = dr[0]; | |
1300 | th->context.Dr1 = dr[1]; | |
1301 | th->context.Dr2 = dr[2]; | |
1302 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1303 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1304 | th->context.Dr7 = dr[7]; |
1305 | } | |
1306 | CHECK (SetThreadContext (th->h, &th->context)); | |
1307 | th->context.ContextFlags = 0; | |
1308 | } | |
1309 | } | |
1310 | ||
1311 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1312 | Otherwise complain. */ |
a244bdca | 1313 | |
2dc38344 | 1314 | if (resume_all) |
17617f2d | 1315 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1316 | else |
17617f2d | 1317 | windows_continue (continue_status, ptid_get_tid (ptid), 0); |
a244bdca CF |
1318 | } |
1319 | ||
695de547 CF |
1320 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1321 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1322 | Note that this function is not available prior to Windows XP. In this case | |
1323 | we emit a warning. */ | |
d603d4b3 | 1324 | static BOOL WINAPI |
695de547 CF |
1325 | ctrl_c_handler (DWORD event_type) |
1326 | { | |
1327 | const int attach_flag = current_inferior ()->attach_flag; | |
1328 | ||
bb0613a5 PM |
1329 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1330 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1331 | return FALSE; |
1332 | ||
1333 | /* If the inferior and the debugger share the same console, do nothing as | |
1334 | the inferior has also received the Ctrl-C event. */ | |
1335 | if (!new_console && !attach_flag) | |
1336 | return TRUE; | |
1337 | ||
1338 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1339 | warning (_("Could not interrupt program. " |
1340 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1341 | |
1342 | /* Return true to tell that Ctrl-C has been handled. */ | |
1343 | return TRUE; | |
1344 | } | |
1345 | ||
e6ad66bd JT |
1346 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1347 | requires handling by WFI (or whatever). */ | |
1e37c281 | 1348 | static int |
28439f5e PA |
1349 | get_windows_debug_event (struct target_ops *ops, |
1350 | int pid, struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1351 | { |
1352 | BOOL debug_event; | |
8a892701 | 1353 | DWORD continue_status, event_code; |
876d1cd7 YZ |
1354 | windows_thread_info *th; |
1355 | static windows_thread_info dummy_thread_info; | |
e6ad66bd | 1356 | DWORD thread_id = 0; |
1e37c281 | 1357 | |
a493e3e2 | 1358 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1359 | |
8a892701 | 1360 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1361 | goto out; |
1e37c281 JM |
1362 | |
1363 | event_count++; | |
1364 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1365 | |
8a892701 | 1366 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1367 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1368 | th = NULL; |
a244bdca | 1369 | have_saved_context = 0; |
8a892701 CF |
1370 | |
1371 | switch (event_code) | |
1e37c281 JM |
1372 | { |
1373 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1374 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1375 | (unsigned) current_event.dwProcessId, |
1376 | (unsigned) current_event.dwThreadId, | |
1377 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1378 | if (saw_create != 1) |
3ade5333 | 1379 | { |
181e7f93 PA |
1380 | struct inferior *inf; |
1381 | inf = find_inferior_pid (current_event.dwProcessId); | |
1382 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1383 | { |
d6dc8049 CF |
1384 | /* Kludge around a Windows bug where first event is a create |
1385 | thread event. Caused when attached process does not have | |
581e13c1 | 1386 | a main thread. */ |
e6ad66bd JT |
1387 | thread_id = fake_create_process (); |
1388 | if (thread_id) | |
181e7f93 | 1389 | saw_create++; |
3ade5333 CF |
1390 | } |
1391 | break; | |
1392 | } | |
581e13c1 | 1393 | /* Record the existence of this thread. */ |
e6ad66bd | 1394 | thread_id = current_event.dwThreadId; |
dc05df57 | 1395 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1396 | current_event.dwThreadId), |
711e434b PM |
1397 | current_event.u.CreateThread.hThread, |
1398 | current_event.u.CreateThread.lpThreadLocalBase); | |
1399 | ||
1e37c281 JM |
1400 | break; |
1401 | ||
1402 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1403 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1404 | (unsigned) current_event.dwProcessId, |
1405 | (unsigned) current_event.dwThreadId, | |
1406 | "EXIT_THREAD_DEBUG_EVENT")); | |
b3c613f2 | 1407 | |
87a45c96 CF |
1408 | if (current_event.dwThreadId != main_thread_id) |
1409 | { | |
dc05df57 | 1410 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1411 | current_event.dwThreadId), |
1412 | current_event.u.ExitThread.dwExitCode); | |
87a45c96 CF |
1413 | th = &dummy_thread_info; |
1414 | } | |
1e37c281 JM |
1415 | break; |
1416 | ||
1417 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1418 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1419 | (unsigned) current_event.dwProcessId, |
1420 | (unsigned) current_event.dwThreadId, | |
1421 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1422 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1423 | if (++saw_create != 1) |
bf25528d | 1424 | break; |
1e37c281 | 1425 | |
dfe7f3ac | 1426 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1427 | if (main_thread_id) |
695de547 | 1428 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1429 | main_thread_id), |
1430 | 0); | |
9d3789f7 | 1431 | main_thread_id = current_event.dwThreadId; |
581e13c1 | 1432 | /* Add the main thread. */ |
dc05df57 | 1433 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
695de547 | 1434 | current_event.dwThreadId), |
711e434b PM |
1435 | current_event.u.CreateProcessInfo.hThread, |
1436 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
e6ad66bd | 1437 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1438 | break; |
1439 | ||
1440 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1441 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1442 | (unsigned) current_event.dwProcessId, |
1443 | (unsigned) current_event.dwThreadId, | |
1444 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1445 | if (!windows_initialization_done) |
1446 | { | |
1447 | target_terminal_ours (); | |
1448 | target_mourn_inferior (); | |
1449 | error (_("During startup program exited with code 0x%x."), | |
1450 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1451 | } | |
1452 | else if (saw_create == 1) | |
1453 | { | |
1454 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1455 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
e6ad66bd | 1456 | thread_id = main_thread_id; |
16d905e2 | 1457 | } |
8a892701 | 1458 | break; |
1e37c281 JM |
1459 | |
1460 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1461 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1462 | (unsigned) current_event.dwProcessId, |
1463 | (unsigned) current_event.dwThreadId, | |
1464 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1465 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1466 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1467 | break; |
8a892701 | 1468 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1469 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1470 | ourstatus->value.integer = 0; | |
e6ad66bd | 1471 | thread_id = main_thread_id; |
1e37c281 JM |
1472 | break; |
1473 | ||
1474 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1475 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1476 | (unsigned) current_event.dwProcessId, |
1477 | (unsigned) current_event.dwThreadId, | |
1478 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1479 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1480 | break; |
d3ff4a77 | 1481 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1482 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1483 | ourstatus->value.integer = 0; | |
e6ad66bd | 1484 | thread_id = main_thread_id; |
d3ff4a77 | 1485 | break; |
1e37c281 JM |
1486 | |
1487 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1488 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1489 | (unsigned) current_event.dwProcessId, |
1490 | (unsigned) current_event.dwThreadId, | |
1491 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1492 | if (saw_create != 1) |
1493 | break; | |
95824559 PA |
1494 | if (handle_exception (ourstatus)) |
1495 | thread_id = current_event.dwThreadId; | |
1496 | else | |
1497 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1e37c281 JM |
1498 | break; |
1499 | ||
581e13c1 | 1500 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1501 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1502 | (unsigned) current_event.dwProcessId, |
1503 | (unsigned) current_event.dwThreadId, | |
1504 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1505 | if (saw_create != 1) |
1506 | break; | |
e6ad66bd | 1507 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1508 | break; |
9d3789f7 | 1509 | |
1e37c281 | 1510 | default: |
dfe7f3ac CF |
1511 | if (saw_create != 1) |
1512 | break; | |
0c3d84be | 1513 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1514 | (unsigned) current_event.dwProcessId, |
1515 | (unsigned) current_event.dwThreadId); | |
1516 | printf_unfiltered (" unknown event code %u\n", | |
1517 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1518 | break; |
1519 | } | |
1520 | ||
e6ad66bd | 1521 | if (!thread_id || saw_create != 1) |
a244bdca | 1522 | { |
95824559 | 1523 | CHECK (windows_continue (continue_status, -1, 0)); |
a244bdca | 1524 | } |
450005e7 | 1525 | else |
9d3789f7 | 1526 | { |
2dc38344 | 1527 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
e6ad66bd | 1528 | thread_id); |
776704b9 JT |
1529 | current_thread = th; |
1530 | if (!current_thread) | |
f16eab5f | 1531 | current_thread = thread_rec (thread_id, TRUE); |
9d3789f7 | 1532 | } |
1e37c281 JM |
1533 | |
1534 | out: | |
e6ad66bd | 1535 | return thread_id; |
1e37c281 JM |
1536 | } |
1537 | ||
2dc38344 | 1538 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1539 | static ptid_t |
117de6a9 | 1540 | windows_wait (struct target_ops *ops, |
47608cb1 | 1541 | ptid_t ptid, struct target_waitstatus *ourstatus, int options) |
24e60978 | 1542 | { |
2dc38344 | 1543 | int pid = -1; |
39f77062 | 1544 | |
c44537cf CV |
1545 | target_terminal_ours (); |
1546 | ||
24e60978 SC |
1547 | /* We loop when we get a non-standard exception rather than return |
1548 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1549 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1550 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1551 | isn't necessarily what you think it is. */ |
24e60978 SC |
1552 | |
1553 | while (1) | |
450005e7 | 1554 | { |
c57918b2 | 1555 | int retval; |
2b008701 | 1556 | |
695de547 CF |
1557 | /* If the user presses Ctrl-c while the debugger is waiting |
1558 | for an event, he expects the debugger to interrupt his program | |
1559 | and to get the prompt back. There are two possible situations: | |
1560 | ||
1561 | - The debugger and the program do not share the console, in | |
1562 | which case the Ctrl-c event only reached the debugger. | |
1563 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1564 | the inferior. Note that this case is working starting with |
1565 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1566 | inferior console. |
1567 | ||
1568 | - The debugger and the program share the same console, in which | |
1569 | case both debugger and inferior will receive the Ctrl-c event. | |
1570 | In that case the ctrl_c handler will ignore the event, as the | |
1571 | Ctrl-c event generated inside the inferior will trigger the | |
1572 | expected debug event. | |
1573 | ||
1574 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1575 | signal first and the delay until GDB receives that signal | |
1576 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1577 | after we have unblocked the CTRL+C handler. This would | |
1578 | lead to the debugger stopping prematurely while handling | |
1579 | the new-thread event that comes with the handling of the SIGINT | |
1580 | inside the inferior, and then stop again immediately when | |
1581 | the user tries to resume the execution in the inferior. | |
1582 | This is a classic race that we should try to fix one day. */ | |
1583 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
28439f5e | 1584 | retval = get_windows_debug_event (ops, pid, ourstatus); |
695de547 | 1585 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1586 | |
450005e7 | 1587 | if (retval) |
2dc38344 | 1588 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1589 | else |
1590 | { | |
1591 | int detach = 0; | |
3cee93ac | 1592 | |
98bbd631 AC |
1593 | if (deprecated_ui_loop_hook != NULL) |
1594 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1595 | |
450005e7 | 1596 | if (detach) |
7d85a9c0 | 1597 | windows_kill_inferior (ops); |
450005e7 CF |
1598 | } |
1599 | } | |
24e60978 SC |
1600 | } |
1601 | ||
ea39ad35 JB |
1602 | /* Iterate over all DLLs currently mapped by our inferior, and |
1603 | add them to our list of solibs. */ | |
94481b8c JB |
1604 | |
1605 | static void | |
ea39ad35 | 1606 | windows_add_all_dlls (void) |
94481b8c JB |
1607 | { |
1608 | struct so_list *so; | |
1609 | HMODULE dummy_hmodule; | |
1610 | DWORD cb_needed; | |
1611 | HMODULE *hmodules; | |
1612 | int i; | |
1613 | ||
94481b8c JB |
1614 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, |
1615 | sizeof (HMODULE), &cb_needed) == 0) | |
1616 | return; | |
1617 | ||
1618 | if (cb_needed < 1) | |
1619 | return; | |
1620 | ||
1621 | hmodules = (HMODULE *) alloca (cb_needed); | |
1622 | if (EnumProcessModules (current_process_handle, hmodules, | |
1623 | cb_needed, &cb_needed) == 0) | |
1624 | return; | |
1625 | ||
ea39ad35 | 1626 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
1627 | { |
1628 | MODULEINFO mi; | |
774f74c2 PM |
1629 | #ifdef __USEWIDE |
1630 | wchar_t dll_name[__PMAX]; | |
1631 | char name[__PMAX]; | |
1632 | #else | |
94481b8c | 1633 | char dll_name[__PMAX]; |
774f74c2 PM |
1634 | char *name; |
1635 | #endif | |
94481b8c JB |
1636 | if (GetModuleInformation (current_process_handle, hmodules[i], |
1637 | &mi, sizeof (mi)) == 0) | |
1638 | continue; | |
1639 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
1640 | dll_name, sizeof (dll_name)) == 0) | |
1641 | continue; | |
774f74c2 PM |
1642 | #ifdef __USEWIDE |
1643 | wcstombs (name, dll_name, __PMAX); | |
1644 | #else | |
1645 | name = dll_name; | |
1646 | #endif | |
ea39ad35 JB |
1647 | |
1648 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
1649 | solib_end = solib_end->next; | |
94481b8c JB |
1650 | } |
1651 | } | |
1652 | ||
9d3789f7 | 1653 | static void |
dc05df57 | 1654 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 | 1655 | { |
fa4ba8da | 1656 | int i; |
d6b48e9c | 1657 | struct inferior *inf; |
2020b7ab | 1658 | struct thread_info *tp; |
9d3789f7 | 1659 | |
a493e3e2 | 1660 | last_sig = GDB_SIGNAL_0; |
9d3789f7 CF |
1661 | event_count = 0; |
1662 | exception_count = 0; | |
bf25528d | 1663 | open_process_used = 0; |
fa4ba8da | 1664 | debug_registers_changed = 0; |
dfe7f3ac | 1665 | debug_registers_used = 0; |
fa4ba8da PM |
1666 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1667 | dr[i] = 0; | |
10325bc5 | 1668 | #ifdef __CYGWIN__ |
de1b3c3d | 1669 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1670 | #endif |
9d3789f7 CF |
1671 | current_event.dwProcessId = pid; |
1672 | memset (¤t_event, 0, sizeof (current_event)); | |
6a3cb8e8 PA |
1673 | if (!target_is_pushed (ops)) |
1674 | push_target (ops); | |
cb851954 | 1675 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1676 | windows_clear_solib (); |
88056fbb | 1677 | clear_proceed_status (0); |
9d3789f7 CF |
1678 | init_wait_for_inferior (); |
1679 | ||
6c95b8df PA |
1680 | inf = current_inferior (); |
1681 | inferior_appeared (inf, pid); | |
181e7f93 | 1682 | inf->attach_flag = attaching; |
7f9f62ba | 1683 | |
9f9d052e PM |
1684 | /* Make the new process the current inferior, so terminal handling |
1685 | can rely on it. When attaching, we don't know about any thread | |
1686 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1687 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1688 | inferior_ptid = pid_to_ptid (pid); |
1689 | ||
5842f62a | 1690 | target_terminal_init (); |
9d3789f7 CF |
1691 | target_terminal_inferior (); |
1692 | ||
16d905e2 | 1693 | windows_initialization_done = 0; |
c72f45d1 | 1694 | |
9d3789f7 CF |
1695 | while (1) |
1696 | { | |
c72f45d1 PA |
1697 | struct target_waitstatus status; |
1698 | ||
1699 | windows_wait (ops, minus_one_ptid, &status, 0); | |
1700 | ||
1701 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
1702 | events. */ | |
1703 | if (status.kind != TARGET_WAITKIND_LOADED | |
1704 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 1705 | break; |
c72f45d1 PA |
1706 | |
1707 | windows_resume (ops, minus_one_ptid, 0, GDB_SIGNAL_0); | |
9d3789f7 | 1708 | } |
eff8332b | 1709 | |
ea39ad35 | 1710 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
1711 | we can iterate over all DLLs and load them in. |
1712 | ||
1713 | We avoid doing it any earlier because, on certain versions of Windows, | |
1714 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
1715 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
1716 | include the DLL name, preventing us from creating an associated SO. | |
1717 | A possible explanation is that ntdll.dll might be mapped before | |
1718 | the SO info gets created by the Windows system -- ntdll.dll is | |
1719 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
1720 | do not seem to suffer from that problem. | |
1721 | ||
1722 | Rather than try to work around this sort of issue, it is much | |
1723 | simpler to just ignore DLL load/unload events during the startup | |
1724 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 1725 | windows_add_all_dlls (); |
94481b8c | 1726 | |
16d905e2 | 1727 | windows_initialization_done = 1; |
9d3789f7 CF |
1728 | return; |
1729 | } | |
1730 | ||
616a9dc4 CV |
1731 | /* Try to set or remove a user privilege to the current process. Return -1 |
1732 | if that fails, the previous setting of that privilege otherwise. | |
1733 | ||
1734 | This code is copied from the Cygwin source code and rearranged to allow | |
1735 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 1736 | available on NT/2K/XP. */ |
616a9dc4 CV |
1737 | static int |
1738 | set_process_privilege (const char *privilege, BOOL enable) | |
1739 | { | |
616a9dc4 CV |
1740 | HANDLE token_hdl = NULL; |
1741 | LUID restore_priv; | |
1742 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1743 | int ret = -1; | |
1744 | DWORD size; | |
1745 | ||
616a9dc4 CV |
1746 | if (!OpenProcessToken (GetCurrentProcess (), |
1747 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1748 | &token_hdl)) | |
1749 | goto out; | |
1750 | ||
418c6cb3 | 1751 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1752 | goto out; |
1753 | ||
1754 | new_priv.PrivilegeCount = 1; | |
1755 | new_priv.Privileges[0].Luid = restore_priv; | |
1756 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1757 | ||
1758 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1759 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1760 | goto out; |
1761 | #if 0 | |
1762 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1763 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 1764 | windows_attach(). */ |
616a9dc4 | 1765 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 1766 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
1767 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
1768 | goto out; | |
1769 | #endif | |
1770 | ||
1771 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1772 | ||
1773 | out: | |
1774 | if (token_hdl) | |
1775 | CloseHandle (token_hdl); | |
1776 | ||
1777 | return ret; | |
1778 | } | |
1779 | ||
02cc9f49 | 1780 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1781 | static void |
c0939df1 | 1782 | windows_attach (struct target_ops *ops, const char *args, int from_tty) |
24e60978 SC |
1783 | { |
1784 | BOOL ok; | |
559e75c0 | 1785 | DWORD pid; |
24e60978 | 1786 | |
74164c56 | 1787 | pid = parse_pid_to_attach (args); |
24e60978 | 1788 | |
616a9dc4 CV |
1789 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1790 | { | |
1791 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
1792 | printf_unfiltered ("This can cause attach to " |
1793 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
1794 | } |
1795 | ||
dc05df57 | 1796 | windows_init_thread_list (); |
9d3789f7 | 1797 | ok = DebugActiveProcess (pid); |
91a175b3 | 1798 | saw_create = 0; |
24e60978 | 1799 | |
10325bc5 | 1800 | #ifdef __CYGWIN__ |
24e60978 | 1801 | if (!ok) |
baa93fa6 | 1802 | { |
581e13c1 | 1803 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
1804 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
1805 | ||
1806 | if (pid > 0) | |
1807 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1808 | } |
1809 | #endif | |
baa93fa6 | 1810 | |
10325bc5 PA |
1811 | if (!ok) |
1812 | error (_("Can't attach to process.")); | |
24e60978 | 1813 | |
2b008701 | 1814 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1815 | |
24e60978 SC |
1816 | if (from_tty) |
1817 | { | |
1818 | char *exec_file = (char *) get_exec_file (0); | |
1819 | ||
1820 | if (exec_file) | |
1821 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1822 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1823 | else |
1824 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1825 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1826 | |
1827 | gdb_flush (gdb_stdout); | |
1828 | } | |
1829 | ||
dc05df57 | 1830 | do_initial_windows_stuff (ops, pid, 1); |
9d3789f7 | 1831 | target_terminal_ours (); |
24e60978 SC |
1832 | } |
1833 | ||
24e60978 | 1834 | static void |
52554a0e | 1835 | windows_detach (struct target_ops *ops, const char *args, int from_tty) |
24e60978 | 1836 | { |
02cc9f49 CV |
1837 | int detached = 1; |
1838 | ||
2b008701 | 1839 | ptid_t ptid = {-1}; |
a493e3e2 | 1840 | windows_resume (ops, ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 1841 | |
2b008701 CF |
1842 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
1843 | { | |
d50a0ce2 CV |
1844 | error (_("Can't detach process %u (error %u)"), |
1845 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 1846 | detached = 0; |
02cc9f49 | 1847 | } |
2b008701 CF |
1848 | DebugSetProcessKillOnExit (FALSE); |
1849 | ||
02cc9f49 | 1850 | if (detached && from_tty) |
24e60978 SC |
1851 | { |
1852 | char *exec_file = get_exec_file (0); | |
1853 | if (exec_file == 0) | |
1854 | exec_file = ""; | |
d50a0ce2 CV |
1855 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
1856 | (unsigned) current_event.dwProcessId); | |
24e60978 SC |
1857 | gdb_flush (gdb_stdout); |
1858 | } | |
7f9f62ba | 1859 | |
df7e5265 | 1860 | x86_cleanup_dregs (); |
39f77062 | 1861 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1862 | detach_inferior (current_event.dwProcessId); |
1863 | ||
6a3cb8e8 | 1864 | inf_child_maybe_unpush_target (ops); |
24e60978 SC |
1865 | } |
1866 | ||
47f7ffdb JB |
1867 | /* Try to determine the executable filename. |
1868 | ||
1869 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
1870 | ||
1871 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
1872 | this function returns nonzero. | |
1873 | ||
1874 | Otherwise, this function returns zero and the contents of | |
1875 | EXE_NAME_RET is undefined. */ | |
1876 | ||
1877 | static int | |
1878 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
1879 | { | |
1880 | DWORD len; | |
1881 | HMODULE dh_buf; | |
1882 | DWORD cbNeeded; | |
1883 | ||
1884 | cbNeeded = 0; | |
1885 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
1886 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1887 | return 0; | |
1888 | ||
1889 | /* We know the executable is always first in the list of modules, | |
1890 | which we just fetched. So no need to fetch more. */ | |
1891 | ||
1892 | #ifdef __CYGWIN__ | |
1893 | { | |
1894 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
1895 | the filename into a temporary buffer first, and then convert it | |
1896 | to POSIX format into the destination buffer. */ | |
1897 | cygwin_buf_t *pathbuf = alloca (exe_name_max_len * sizeof (cygwin_buf_t)); | |
1898 | ||
1899 | len = GetModuleFileNameEx (current_process_handle, | |
1900 | dh_buf, pathbuf, exe_name_max_len); | |
1901 | if (len == 0) | |
1902 | error (_("Error getting executable filename: %u."), | |
1903 | (unsigned) GetLastError ()); | |
1904 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
1905 | exe_name_max_len) < 0) | |
1906 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
1907 | } | |
1908 | #else | |
1909 | len = GetModuleFileNameEx (current_process_handle, | |
1910 | dh_buf, exe_name_ret, exe_name_max_len); | |
1911 | if (len == 0) | |
1912 | error (_("Error getting executable filename: %u."), | |
1913 | (unsigned) GetLastError ()); | |
1914 | #endif | |
1915 | ||
1916 | return 1; /* success */ | |
1917 | } | |
1918 | ||
1919 | /* The pid_to_exec_file target_ops method for this platform. */ | |
1920 | ||
3ee6f623 | 1921 | static char * |
8dd27370 | 1922 | windows_pid_to_exec_file (struct target_ops *self, int pid) |
47216e51 | 1923 | { |
b3c613f2 | 1924 | static char path[__PMAX]; |
10325bc5 | 1925 | #ifdef __CYGWIN__ |
581e13c1 | 1926 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
1927 | int nchars; |
1928 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
1929 | |
1930 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
1931 | nchars = readlink (procexe, path, sizeof(path)); |
1932 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 1933 | { |
33605d39 CF |
1934 | path[nchars] = '\0'; /* Got it */ |
1935 | return path; | |
47216e51 | 1936 | } |
10325bc5 PA |
1937 | #endif |
1938 | ||
33605d39 | 1939 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 1940 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 1941 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
1942 | path[0] = '\0'; |
1943 | ||
1944 | return path; | |
47216e51 CV |
1945 | } |
1946 | ||
24e60978 SC |
1947 | /* Print status information about what we're accessing. */ |
1948 | ||
1949 | static void | |
dc05df57 | 1950 | windows_files_info (struct target_ops *ignore) |
24e60978 | 1951 | { |
181e7f93 PA |
1952 | struct inferior *inf = current_inferior (); |
1953 | ||
24e60978 | 1954 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
1955 | inf->attach_flag ? "attached" : "child", |
1956 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
1957 | } |
1958 | ||
cd44747c PM |
1959 | /* Modify CreateProcess parameters for use of a new separate console. |
1960 | Parameters are: | |
1961 | *FLAGS: DWORD parameter for general process creation flags. | |
1962 | *SI: STARTUPINFO structure, for which the console window size and | |
1963 | console buffer size is filled in if GDB is running in a console. | |
1964 | to create the new console. | |
1965 | The size of the used font is not available on all versions of | |
1966 | Windows OS. Furthermore, the current font might not be the default | |
1967 | font, but this is still better than before. | |
1968 | If the windows and buffer sizes are computed, | |
1969 | SI->DWFLAGS is changed so that this information is used | |
1970 | by CreateProcess function. */ | |
1971 | ||
1972 | static void | |
1973 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
1974 | { | |
1975 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
1976 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
1977 | ||
1978 | if (hconsole != INVALID_HANDLE_VALUE) | |
1979 | { | |
1980 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
1981 | COORD font_size; | |
1982 | CONSOLE_FONT_INFO cfi; | |
1983 | ||
1984 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
1985 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
1986 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
1987 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
1988 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
1989 | if (font_size.X) | |
1990 | si->dwXSize *= font_size.X; | |
1991 | else | |
1992 | si->dwXSize *= 8; | |
1993 | if (font_size.Y) | |
1994 | si->dwYSize *= font_size.Y; | |
1995 | else | |
1996 | si->dwYSize *= 12; | |
1997 | si->dwXCountChars = sbinfo.dwSize.X; | |
1998 | si->dwYCountChars = sbinfo.dwSize.Y; | |
1999 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2000 | } | |
2001 | *flags |= CREATE_NEW_CONSOLE; | |
2002 | } | |
2003 | ||
c93dbcba EZ |
2004 | #ifndef __CYGWIN__ |
2005 | /* Function called by qsort to sort environment strings. */ | |
2006 | ||
2007 | static int | |
2008 | envvar_cmp (const void *a, const void *b) | |
2009 | { | |
2010 | const char **p = (const char **) a; | |
2011 | const char **q = (const char **) b; | |
2012 | return strcasecmp (*p, *q); | |
2013 | } | |
2014 | #endif | |
2015 | ||
b7ff339d CV |
2016 | #ifdef __CYGWIN__ |
2017 | static void | |
2018 | clear_win32_environment (char **env) | |
2019 | { | |
2020 | int i; | |
2021 | size_t len; | |
2022 | wchar_t *copy = NULL, *equalpos; | |
2023 | ||
2024 | for (i = 0; env[i] && *env[i]; i++) | |
2025 | { | |
2026 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2027 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2028 | mbstowcs (copy, env[i], len); | |
2029 | equalpos = wcschr (copy, L'='); | |
2030 | if (equalpos) | |
2031 | *equalpos = L'\0'; | |
2032 | SetEnvironmentVariableW (copy, NULL); | |
2033 | } | |
2034 | xfree (copy); | |
2035 | } | |
2036 | #endif | |
2037 | ||
dc05df57 | 2038 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2039 | EXEC_FILE is the file to run. |
2040 | ALLARGS is a string containing the arguments to the program. | |
2041 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2042 | ||
24e60978 | 2043 | static void |
dc05df57 | 2044 | windows_create_inferior (struct target_ops *ops, char *exec_file, |
136d6dae | 2045 | char *allargs, char **in_env, int from_tty) |
24e60978 | 2046 | { |
b3c613f2 | 2047 | STARTUPINFO si; |
41b4aadc | 2048 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2049 | cygwin_buf_t real_path[__PMAX]; |
2050 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 | 2051 | const char *sh; |
b3c613f2 CF |
2052 | cygwin_buf_t *toexec; |
2053 | cygwin_buf_t *cygallargs; | |
2054 | cygwin_buf_t *args; | |
b7ff339d CV |
2055 | char **old_env = NULL; |
2056 | PWCHAR w32_env; | |
d0d0ab16 | 2057 | size_t len; |
2becadee CF |
2058 | int tty; |
2059 | int ostdin, ostdout, ostderr; | |
41b4aadc | 2060 | #else |
b3c613f2 CF |
2061 | char real_path[__PMAX]; |
2062 | char shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 CV |
2063 | char *toexec; |
2064 | char *args; | |
8f205f9c | 2065 | size_t args_len; |
41b4aadc | 2066 | HANDLE tty; |
c93dbcba EZ |
2067 | char *w32env; |
2068 | char *temp; | |
2069 | size_t envlen; | |
2070 | int i; | |
2071 | size_t envsize; | |
2072 | char **env; | |
41b4aadc | 2073 | #endif |
d0d0ab16 CV |
2074 | PROCESS_INFORMATION pi; |
2075 | BOOL ret; | |
2076 | DWORD flags = 0; | |
3cb3b8df | 2077 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2078 | |
2079 | if (!exec_file) | |
8a3fe4f8 | 2080 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
2081 | |
2082 | memset (&si, 0, sizeof (si)); | |
2083 | si.cb = sizeof (si); | |
2084 | ||
d0d0ab16 CV |
2085 | if (new_group) |
2086 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2087 | ||
2088 | if (new_console) | |
cd44747c | 2089 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2090 | |
10325bc5 | 2091 | #ifdef __CYGWIN__ |
349b409f | 2092 | if (!useshell) |
dfe7f3ac | 2093 | { |
d0d0ab16 CV |
2094 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2095 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2096 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2097 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2098 | toexec = real_path; |
b3c613f2 | 2099 | #ifdef __USEWIDE |
d0d0ab16 CV |
2100 | len = mbstowcs (NULL, allargs, 0) + 1; |
2101 | if (len == (size_t) -1) | |
2102 | error (_("Error starting executable: %d"), errno); | |
2103 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2104 | mbstowcs (cygallargs, allargs, len); | |
60c5c021 CF |
2105 | #else |
2106 | cygallargs = allargs; | |
b3c613f2 | 2107 | #endif |
dfe7f3ac CF |
2108 | } |
2109 | else | |
2110 | { | |
349b409f CF |
2111 | sh = getenv ("SHELL"); |
2112 | if (!sh) | |
2113 | sh = "/bin/sh"; | |
b3c613f2 | 2114 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2115 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2116 | #ifdef __USEWIDE |
d0d0ab16 CV |
2117 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2118 | + mbstowcs (NULL, allargs, 0) + 2; | |
2119 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2120 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2121 | #else |
08850b56 PM |
2122 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2123 | + strlen (allargs) + 2); | |
2124 | cygallargs = (char *) alloca (len); | |
2125 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2126 | #endif |
dfe7f3ac | 2127 | toexec = shell; |
d0d0ab16 | 2128 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2129 | } |
b3c613f2 CF |
2130 | |
2131 | #ifdef __USEWIDE | |
2132 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2133 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2134 | wcscpy (args, toexec); |
2135 | wcscat (args, L" "); | |
2136 | wcscat (args, cygallargs); | |
b3c613f2 CF |
2137 | #else |
2138 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); | |
2139 | strcpy (args, toexec); | |
2140 | strcat (args, " "); | |
2141 | strcat (args, cygallargs); | |
2142 | #endif | |
2143 | ||
b7ff339d CV |
2144 | #ifdef CW_CVT_ENV_TO_WINENV |
2145 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2146 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2147 | if (w32_env != (PWCHAR) -1) | |
2148 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2149 | else | |
2150 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
2151 | #endif | |
2152 | { | |
2153 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2154 | clear_win32_environment (environ); | |
2155 | /* Prepare the environment vars for CreateProcess. */ | |
2156 | old_env = environ; | |
2157 | environ = in_env; | |
2158 | cygwin_internal (CW_SYNC_WINENV); | |
2159 | w32_env = NULL; | |
2160 | } | |
1750a5ef | 2161 | |
2becadee CF |
2162 | if (!inferior_io_terminal) |
2163 | tty = ostdin = ostdout = ostderr = -1; | |
2164 | else | |
2165 | { | |
2166 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2167 | if (tty < 0) | |
2168 | { | |
2169 | print_sys_errmsg (inferior_io_terminal, errno); | |
2170 | ostdin = ostdout = ostderr = -1; | |
2171 | } | |
2172 | else | |
2173 | { | |
2174 | ostdin = dup (0); | |
2175 | ostdout = dup (1); | |
2176 | ostderr = dup (2); | |
2177 | dup2 (tty, 0); | |
2178 | dup2 (tty, 1); | |
2179 | dup2 (tty, 2); | |
2180 | } | |
2181 | } | |
d0d0ab16 CV |
2182 | |
2183 | windows_init_thread_list (); | |
b3c613f2 CF |
2184 | ret = CreateProcess (0, |
2185 | args, /* command line */ | |
2186 | NULL, /* Security */ | |
2187 | NULL, /* thread */ | |
2188 | TRUE, /* inherit handles */ | |
2189 | flags, /* start flags */ | |
b7ff339d | 2190 | w32_env, /* environment */ |
b3c613f2 CF |
2191 | NULL, /* current directory */ |
2192 | &si, | |
2193 | &pi); | |
b7ff339d CV |
2194 | if (w32_env) |
2195 | /* Just free the Win32 environment, if it could be created. */ | |
2196 | free (w32_env); | |
2197 | else | |
2198 | { | |
2199 | /* Reset all environment variables to avoid leftover on next run. */ | |
2200 | clear_win32_environment (in_env); | |
2201 | /* Restore normal GDB environment variables. */ | |
2202 | environ = old_env; | |
2203 | cygwin_internal (CW_SYNC_WINENV); | |
2204 | } | |
2205 | ||
d0d0ab16 CV |
2206 | if (tty >= 0) |
2207 | { | |
2208 | close (tty); | |
2209 | dup2 (ostdin, 0); | |
2210 | dup2 (ostdout, 1); | |
2211 | dup2 (ostderr, 2); | |
2212 | close (ostdin); | |
2213 | close (ostdout); | |
2214 | close (ostderr); | |
2215 | } | |
41b4aadc | 2216 | #else |
b3c613f2 | 2217 | toexec = exec_file; |
8f205f9c JB |
2218 | /* Build the command line, a space-separated list of tokens where |
2219 | the first token is the name of the module to be executed. | |
2220 | To avoid ambiguities introduced by spaces in the module name, | |
2221 | we quote it. */ | |
2222 | args_len = strlen (toexec) + 2 /* quotes */ + strlen (allargs) + 2; | |
0ae1c716 | 2223 | args = (char *) alloca (args_len); |
8f205f9c | 2224 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs); |
d0d0ab16 | 2225 | |
d0d0ab16 CV |
2226 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2227 | ||
41b4aadc CF |
2228 | if (!inferior_io_terminal) |
2229 | tty = INVALID_HANDLE_VALUE; | |
2230 | else | |
2231 | { | |
2232 | SECURITY_ATTRIBUTES sa; | |
2233 | sa.nLength = sizeof(sa); | |
2234 | sa.lpSecurityDescriptor = 0; | |
2235 | sa.bInheritHandle = TRUE; | |
2236 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2237 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2238 | if (tty == INVALID_HANDLE_VALUE) | |
2239 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2240 | inferior_io_terminal, (unsigned) GetLastError ()); | |
2241 | else | |
2242 | { | |
2243 | si.hStdInput = tty; | |
2244 | si.hStdOutput = tty; | |
2245 | si.hStdError = tty; | |
2246 | si.dwFlags |= STARTF_USESTDHANDLES; | |
2247 | } | |
2248 | } | |
2becadee | 2249 | |
c93dbcba EZ |
2250 | /* CreateProcess takes the environment list as a null terminated set of |
2251 | strings (i.e. two nulls terminate the list). */ | |
2252 | ||
2253 | /* Get total size for env strings. */ | |
2254 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2255 | envlen += strlen (in_env[i]) + 1; | |
2256 | ||
2257 | envsize = sizeof (in_env[0]) * (i + 1); | |
2258 | env = (char **) alloca (envsize); | |
2259 | memcpy (env, in_env, envsize); | |
2260 | /* Windows programs expect the environment block to be sorted. */ | |
2261 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2262 | ||
0ae1c716 | 2263 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
2264 | |
2265 | /* Copy env strings into new buffer. */ | |
2266 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2267 | { | |
2268 | strcpy (temp, env[i]); | |
2269 | temp += strlen (temp) + 1; | |
2270 | } | |
2271 | ||
2272 | /* Final nil string to terminate new env. */ | |
2273 | *temp = 0; | |
2274 | ||
dc05df57 | 2275 | windows_init_thread_list (); |
d0d0ab16 CV |
2276 | ret = CreateProcessA (0, |
2277 | args, /* command line */ | |
2278 | NULL, /* Security */ | |
2279 | NULL, /* thread */ | |
2280 | TRUE, /* inherit handles */ | |
2281 | flags, /* start flags */ | |
c93dbcba | 2282 | w32env, /* environment */ |
d0d0ab16 CV |
2283 | NULL, /* current directory */ |
2284 | &si, | |
2285 | &pi); | |
41b4aadc CF |
2286 | if (tty != INVALID_HANDLE_VALUE) |
2287 | CloseHandle (tty); | |
10325bc5 | 2288 | #endif |
2becadee | 2289 | |
24e60978 | 2290 | if (!ret) |
d50a0ce2 | 2291 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 2292 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 2293 | |
c1766e7d PM |
2294 | CloseHandle (pi.hThread); |
2295 | CloseHandle (pi.hProcess); | |
2296 | ||
dfe7f3ac CF |
2297 | if (useshell && shell[0] != '\0') |
2298 | saw_create = -1; | |
2299 | else | |
2300 | saw_create = 0; | |
2301 | ||
dc05df57 | 2302 | do_initial_windows_stuff (ops, pi.dwProcessId, 0); |
d3a09475 | 2303 | |
17617f2d | 2304 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
2305 | } |
2306 | ||
2307 | static void | |
dc05df57 | 2308 | windows_mourn_inferior (struct target_ops *ops) |
24e60978 | 2309 | { |
17617f2d | 2310 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 2311 | x86_cleanup_dregs(); |
bf25528d CF |
2312 | if (open_process_used) |
2313 | { | |
2314 | CHECK (CloseHandle (current_process_handle)); | |
2315 | open_process_used = 0; | |
2316 | } | |
c1ee2fb3 | 2317 | inf_child_mourn_inferior (ops); |
24e60978 SC |
2318 | } |
2319 | ||
24e60978 | 2320 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 2321 | ^C on the controlling terminal. */ |
24e60978 | 2322 | |
b607efe7 | 2323 | static void |
bfedc46a | 2324 | windows_interrupt (struct target_ops *self, ptid_t ptid) |
24e60978 | 2325 | { |
1ef980b9 | 2326 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2327 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2328 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2329 | } |
2330 | ||
44f38867 PA |
2331 | /* Helper for windows_xfer_partial that handles memory transfers. |
2332 | Arguments are like target_xfer_partial. */ | |
2333 | ||
9b409511 | 2334 | static enum target_xfer_status |
44f38867 | 2335 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 2336 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 2337 | { |
5732a500 | 2338 | SIZE_T done = 0; |
44f38867 | 2339 | BOOL success; |
9e52adf9 | 2340 | DWORD lasterror = 0; |
44f38867 PA |
2341 | |
2342 | if (writebuf != NULL) | |
24e60978 | 2343 | { |
a2388568 | 2344 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 2345 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2346 | success = WriteProcessMemory (current_process_handle, |
2347 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
2348 | len, &done); | |
9e52adf9 | 2349 | if (!success) |
7126d5c8 | 2350 | lasterror = GetLastError (); |
2b008701 | 2351 | FlushInstructionCache (current_process_handle, |
2c647436 | 2352 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2353 | } |
2354 | else | |
2355 | { | |
a2388568 | 2356 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 2357 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2358 | success = ReadProcessMemory (current_process_handle, |
2359 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
2360 | len, &done); | |
9e52adf9 | 2361 | if (!success) |
7126d5c8 | 2362 | lasterror = GetLastError (); |
24e60978 | 2363 | } |
9b409511 | 2364 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 2365 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 2366 | return TARGET_XFER_OK; |
9e52adf9 | 2367 | else |
9b409511 | 2368 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
2369 | } |
2370 | ||
3ee6f623 | 2371 | static void |
7d85a9c0 | 2372 | windows_kill_inferior (struct target_ops *ops) |
24e60978 | 2373 | { |
3cee93ac CF |
2374 | CHECK (TerminateProcess (current_process_handle, 0)); |
2375 | ||
b5edcb45 ILT |
2376 | for (;;) |
2377 | { | |
17617f2d | 2378 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 2379 | break; |
3cee93ac | 2380 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2381 | break; |
3cee93ac | 2382 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2383 | break; |
2384 | } | |
2385 | ||
581e13c1 | 2386 | target_mourn_inferior (); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
2387 | } |
2388 | ||
24e60978 | 2389 | static void |
de90e03d | 2390 | windows_close (struct target_ops *self) |
24e60978 | 2391 | { |
dc05df57 | 2392 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
dfd4cc63 | 2393 | ptid_get_pid (inferior_ptid))); |
24e60978 | 2394 | } |
1ef980b9 | 2395 | |
581e13c1 | 2396 | /* Convert pid to printable format. */ |
3ee6f623 | 2397 | static char * |
117de6a9 | 2398 | windows_pid_to_str (struct target_ops *ops, ptid_t ptid) |
24e60978 | 2399 | { |
3ee6f623 | 2400 | static char buf[80]; |
3ee6f623 | 2401 | |
2dc38344 PA |
2402 | if (ptid_get_tid (ptid) != 0) |
2403 | { | |
2404 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2405 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2406 | return buf; | |
2407 | } | |
2408 | ||
2409 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2410 | } |
2411 | ||
9b409511 | 2412 | static enum target_xfer_status |
dc05df57 | 2413 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
2414 | enum target_object object, const char *annex, |
2415 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2416 | ULONGEST offset, ULONGEST len, | |
2417 | ULONGEST *xfered_len) | |
3cb8e7f6 | 2418 | { |
de1b3c3d PA |
2419 | struct obstack obstack; |
2420 | const char *buf; | |
2421 | LONGEST len_avail; | |
3cb8e7f6 | 2422 | struct so_list *so; |
3cb8e7f6 | 2423 | |
de1b3c3d | 2424 | if (writebuf) |
2ed4b548 | 2425 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 2426 | |
de1b3c3d PA |
2427 | obstack_init (&obstack); |
2428 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2429 | for (so = solib_start.next; so; so = so->next) | |
581e13c1 MS |
2430 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) |
2431 | (uintptr_t) so->lm_info->load_addr, | |
f5656ead | 2432 | target_gdbarch (), &obstack); |
de1b3c3d | 2433 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2434 | |
0ae1c716 | 2435 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
2436 | len_avail = strlen (buf); |
2437 | if (offset >= len_avail) | |
49dc7f4b PM |
2438 | len= 0; |
2439 | else | |
2440 | { | |
2441 | if (len > len_avail - offset) | |
2442 | len = len_avail - offset; | |
2443 | memcpy (readbuf, buf + offset, len); | |
2444 | } | |
3cb8e7f6 | 2445 | |
de1b3c3d | 2446 | obstack_free (&obstack, NULL); |
9b409511 | 2447 | *xfered_len = (ULONGEST) len; |
0837c976 | 2448 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
2449 | } |
2450 | ||
9b409511 | 2451 | static enum target_xfer_status |
dc05df57 | 2452 | windows_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
2453 | const char *annex, gdb_byte *readbuf, |
2454 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, | |
2455 | ULONGEST *xfered_len) | |
3cb8e7f6 | 2456 | { |
de1b3c3d | 2457 | switch (object) |
3cb8e7f6 | 2458 | { |
de1b3c3d | 2459 | case TARGET_OBJECT_MEMORY: |
9b409511 | 2460 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
2461 | |
2462 | case TARGET_OBJECT_LIBRARIES: | |
dc05df57 | 2463 | return windows_xfer_shared_libraries (ops, object, annex, readbuf, |
9b409511 | 2464 | writebuf, offset, len, xfered_len); |
3929abe9 | 2465 | |
de1b3c3d | 2466 | default: |
e75fdfca TT |
2467 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
2468 | readbuf, writebuf, offset, len, | |
2469 | xfered_len); | |
3929abe9 | 2470 | } |
02c5aecd CF |
2471 | } |
2472 | ||
711e434b PM |
2473 | /* Provide thread local base, i.e. Thread Information Block address. |
2474 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
2475 | ||
2476 | static int | |
bd7ae0f5 TT |
2477 | windows_get_tib_address (struct target_ops *self, |
2478 | ptid_t ptid, CORE_ADDR *addr) | |
711e434b | 2479 | { |
876d1cd7 | 2480 | windows_thread_info *th; |
711e434b PM |
2481 | |
2482 | th = thread_rec (ptid_get_tid (ptid), 0); | |
2483 | if (th == NULL) | |
2484 | return 0; | |
2485 | ||
2486 | if (addr != NULL) | |
2487 | *addr = th->thread_local_base; | |
2488 | ||
2489 | return 1; | |
2490 | } | |
2491 | ||
1e2f1c5c | 2492 | static ptid_t |
1e6b91a4 | 2493 | windows_get_ada_task_ptid (struct target_ops *self, long lwp, long thread) |
1e2f1c5c JB |
2494 | { |
2495 | return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp); | |
2496 | } | |
2497 | ||
51a9c8c5 PA |
2498 | static struct target_ops * |
2499 | windows_target (void) | |
3ee6f623 | 2500 | { |
51a9c8c5 PA |
2501 | struct target_ops *t = inf_child_target (); |
2502 | ||
51a9c8c5 PA |
2503 | t->to_close = windows_close; |
2504 | t->to_attach = windows_attach; | |
2505 | t->to_attach_no_wait = 1; | |
2506 | t->to_detach = windows_detach; | |
2507 | t->to_resume = windows_resume; | |
2508 | t->to_wait = windows_wait; | |
2509 | t->to_fetch_registers = windows_fetch_inferior_registers; | |
2510 | t->to_store_registers = windows_store_inferior_registers; | |
2511 | t->to_xfer_partial = windows_xfer_partial; | |
2512 | t->to_files_info = windows_files_info; | |
2513 | t->to_kill = windows_kill_inferior; | |
2514 | t->to_create_inferior = windows_create_inferior; | |
2515 | t->to_mourn_inferior = windows_mourn_inferior; | |
2516 | t->to_thread_alive = windows_thread_alive; | |
2517 | t->to_pid_to_str = windows_pid_to_str; | |
bfedc46a | 2518 | t->to_interrupt = windows_interrupt; |
51a9c8c5 PA |
2519 | t->to_pid_to_exec_file = windows_pid_to_exec_file; |
2520 | t->to_get_ada_task_ptid = windows_get_ada_task_ptid; | |
2521 | t->to_get_tib_address = windows_get_tib_address; | |
2522 | ||
2523 | return t; | |
c719b714 | 2524 | } |
24e60978 | 2525 | |
d603d4b3 JK |
2526 | /* -Wmissing-prototypes */ |
2527 | extern initialize_file_ftype _initialize_windows_nat; | |
2528 | ||
24e60978 | 2529 | void |
dc05df57 | 2530 | _initialize_windows_nat (void) |
24e60978 | 2531 | { |
51a9c8c5 PA |
2532 | struct target_ops *t; |
2533 | ||
2534 | t = windows_target (); | |
2535 | ||
df7e5265 | 2536 | x86_use_watchpoints (t); |
51a9c8c5 | 2537 | |
df7e5265 GB |
2538 | x86_dr_low.set_control = cygwin_set_dr7; |
2539 | x86_dr_low.set_addr = cygwin_set_dr; | |
2540 | x86_dr_low.get_addr = cygwin_get_dr; | |
2541 | x86_dr_low.get_status = cygwin_get_dr6; | |
2542 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 2543 | |
df7e5265 GB |
2544 | /* x86_dr_low.debug_register_length field is set by |
2545 | calling x86_set_debug_register_length function | |
51a9c8c5 | 2546 | in processor windows specific native file. */ |
fa58ee11 | 2547 | |
51a9c8c5 | 2548 | add_target (t); |
1ef980b9 | 2549 | |
d0d0ab16 CV |
2550 | #ifdef __CYGWIN__ |
2551 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
2552 | #endif | |
2553 | ||
10325bc5 | 2554 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2555 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2556 | Set use of shell to start subprocess."), _("\ | |
2557 | Show use of shell to start subprocess."), NULL, | |
2558 | NULL, | |
2559 | NULL, /* FIXME: i18n: */ | |
2560 | &setlist, &showlist); | |
2561 | ||
581e13c1 MS |
2562 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
2563 | &cygwin_exceptions, _("\ | |
09280ddf CF |
2564 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
2565 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2566 | NULL, | |
2567 | NULL, /* FIXME: i18n: */ | |
2568 | &setlist, &showlist); | |
10325bc5 | 2569 | #endif |
09280ddf | 2570 | |
5bf193a2 AC |
2571 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2572 | Set creation of new console when creating child process."), _("\ | |
2573 | Show creation of new console when creating child process."), NULL, | |
2574 | NULL, | |
2575 | NULL, /* FIXME: i18n: */ | |
2576 | &setlist, &showlist); | |
2577 | ||
2578 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2579 | Set creation of new group when creating child process."), _("\ | |
2580 | Show creation of new group when creating child process."), NULL, | |
2581 | NULL, | |
2582 | NULL, /* FIXME: i18n: */ | |
2583 | &setlist, &showlist); | |
2584 | ||
2585 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2586 | Set whether to display execution in child process."), _("\ | |
2587 | Show whether to display execution in child process."), NULL, | |
2588 | NULL, | |
2589 | NULL, /* FIXME: i18n: */ | |
2590 | &setlist, &showlist); | |
2591 | ||
2592 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2593 | Set whether to display kernel events in child process."), _("\ | |
2594 | Show whether to display kernel events in child process."), NULL, | |
2595 | NULL, | |
2596 | NULL, /* FIXME: i18n: */ | |
2597 | &setlist, &showlist); | |
2598 | ||
2599 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2600 | Set whether to display memory accesses in child process."), _("\ | |
2601 | Show whether to display memory accesses in child process."), NULL, | |
2602 | NULL, | |
2603 | NULL, /* FIXME: i18n: */ | |
2604 | &setlist, &showlist); | |
2605 | ||
2606 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2607 | &debug_exceptions, _("\ | |
2608 | Set whether to display kernel exceptions in child process."), _("\ | |
2609 | Show whether to display kernel exceptions in child process."), NULL, | |
2610 | NULL, | |
2611 | NULL, /* FIXME: i18n: */ | |
2612 | &setlist, &showlist); | |
1ef980b9 | 2613 | |
711e434b | 2614 | init_w32_command_list (); |
c1748f97 PM |
2615 | |
2616 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2617 | _("Display selectors infos."), |
c1748f97 | 2618 | &info_w32_cmdlist); |
24e60978 | 2619 | } |
3cee93ac | 2620 | |
fa4ba8da PM |
2621 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2622 | ||
2623 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2624 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 2625 | actually set up when windows_continue is called. */ |
9bb9e8ad | 2626 | static void |
fa4ba8da PM |
2627 | cygwin_set_dr (int i, CORE_ADDR addr) |
2628 | { | |
2629 | if (i < 0 || i > 3) | |
2630 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2631 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 2632 | dr[i] = addr; |
fa4ba8da PM |
2633 | debug_registers_changed = 1; |
2634 | debug_registers_used = 1; | |
2635 | } | |
2636 | ||
2637 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2638 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 2639 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
2640 | static void |
2641 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 2642 | { |
9bb9e8ad | 2643 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
2644 | debug_registers_changed = 1; |
2645 | debug_registers_used = 1; | |
2646 | } | |
2647 | ||
7b50312a PA |
2648 | /* Get the value of debug register I from the inferior. */ |
2649 | ||
2650 | static CORE_ADDR | |
2651 | cygwin_get_dr (int i) | |
2652 | { | |
2653 | return dr[i]; | |
2654 | } | |
2655 | ||
fa4ba8da PM |
2656 | /* Get the value of the DR6 debug status register from the inferior. |
2657 | Here we just return the value stored in dr[6] | |
2658 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 2659 | static unsigned long |
fa4ba8da PM |
2660 | cygwin_get_dr6 (void) |
2661 | { | |
9bb9e8ad | 2662 | return (unsigned long) dr[6]; |
fa4ba8da PM |
2663 | } |
2664 | ||
7b50312a PA |
2665 | /* Get the value of the DR7 debug status register from the inferior. |
2666 | Here we just return the value stored in dr[7] by the last call to | |
2667 | thread_rec for current_event.dwThreadId id. */ | |
2668 | ||
2669 | static unsigned long | |
2670 | cygwin_get_dr7 (void) | |
2671 | { | |
2672 | return (unsigned long) dr[7]; | |
2673 | } | |
2674 | ||
2dc38344 | 2675 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 2676 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 2677 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
3cee93ac | 2678 | static int |
28439f5e | 2679 | windows_thread_alive (struct target_ops *ops, ptid_t ptid) |
3cee93ac | 2680 | { |
2dc38344 PA |
2681 | int tid; |
2682 | ||
2683 | gdb_assert (ptid_get_tid (ptid) != 0); | |
2684 | tid = ptid_get_tid (ptid); | |
39f77062 | 2685 | |
581e13c1 MS |
2686 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 |
2687 | ? FALSE : TRUE; | |
3cee93ac CF |
2688 | } |
2689 | ||
d603d4b3 JK |
2690 | /* -Wmissing-prototypes */ |
2691 | extern initialize_file_ftype _initialize_check_for_gdb_ini; | |
2692 | ||
2a3d5645 CF |
2693 | void |
2694 | _initialize_check_for_gdb_ini (void) | |
2695 | { | |
2696 | char *homedir; | |
2697 | if (inhibit_gdbinit) | |
2698 | return; | |
2699 | ||
2700 | homedir = getenv ("HOME"); | |
2701 | if (homedir) | |
2702 | { | |
2703 | char *p; | |
2704 | char *oldini = (char *) alloca (strlen (homedir) + | |
2705 | sizeof ("/gdb.ini")); | |
2706 | strcpy (oldini, homedir); | |
2707 | p = strchr (oldini, '\0'); | |
0ba1096a | 2708 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
2709 | *p++ = '/'; |
2710 | strcpy (p, "gdb.ini"); | |
2711 | if (access (oldini, 0) == 0) | |
2712 | { | |
2713 | int len = strlen (oldini); | |
0ae1c716 | 2714 | char *newini = (char *) alloca (len + 1); |
08850b56 PM |
2715 | |
2716 | xsnprintf (newini, len + 1, "%.*s.gdbinit", | |
2717 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); | |
8a3fe4f8 | 2718 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2719 | } |
2720 | } | |
2721 | } | |
33605d39 | 2722 | |
2b008701 | 2723 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 2724 | these functions could not be found. */ |
2b008701 CF |
2725 | static BOOL WINAPI |
2726 | bad_DebugActiveProcessStop (DWORD w) | |
2727 | { | |
2728 | return FALSE; | |
2729 | } | |
2730 | static BOOL WINAPI | |
2731 | bad_DebugBreakProcess (HANDLE w) | |
2732 | { | |
2733 | return FALSE; | |
2734 | } | |
2735 | static BOOL WINAPI | |
2736 | bad_DebugSetProcessKillOnExit (BOOL w) | |
2737 | { | |
2738 | return FALSE; | |
2739 | } | |
2740 | static BOOL WINAPI | |
2741 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
2742 | { | |
2743 | return FALSE; | |
2744 | } | |
b3c613f2 CF |
2745 | |
2746 | #ifdef __USEWIDE | |
2b008701 | 2747 | static DWORD WINAPI |
b3c613f2 | 2748 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
2749 | { |
2750 | return 0; | |
2751 | } | |
d0d0ab16 CV |
2752 | #else |
2753 | static DWORD WINAPI | |
b3c613f2 | 2754 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
2755 | { |
2756 | return 0; | |
2757 | } | |
2758 | #endif | |
b3c613f2 | 2759 | |
2b008701 CF |
2760 | static BOOL WINAPI |
2761 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
2762 | { | |
2763 | return FALSE; | |
2764 | } | |
2765 | ||
418c6cb3 CF |
2766 | static BOOL WINAPI |
2767 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
2768 | { | |
2769 | return FALSE; | |
2770 | } | |
2771 | ||
cd44747c PM |
2772 | static BOOL WINAPI |
2773 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
2774 | { | |
2775 | f->nFont = 0; | |
2776 | return 1; | |
2777 | } | |
2778 | static COORD WINAPI | |
2779 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
2780 | { | |
2781 | COORD size; | |
2782 | size.X = 8; | |
2783 | size.Y = 12; | |
2784 | return size; | |
2785 | } | |
2786 | ||
d603d4b3 JK |
2787 | /* -Wmissing-prototypes */ |
2788 | extern initialize_file_ftype _initialize_loadable; | |
2789 | ||
2b008701 | 2790 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 2791 | of Windows. */ |
d603d4b3 | 2792 | |
33605d39 | 2793 | void |
2b008701 | 2794 | _initialize_loadable (void) |
33605d39 | 2795 | { |
2b008701 CF |
2796 | HMODULE hm = NULL; |
2797 | ||
43499ea3 PA |
2798 | #define GPA(m, func) \ |
2799 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
2800 | ||
2b008701 CF |
2801 | hm = LoadLibrary ("kernel32.dll"); |
2802 | if (hm) | |
33605d39 | 2803 | { |
43499ea3 PA |
2804 | GPA (hm, DebugActiveProcessStop); |
2805 | GPA (hm, DebugBreakProcess); | |
2806 | GPA (hm, DebugSetProcessKillOnExit); | |
2807 | GPA (hm, GetConsoleFontSize); | |
2808 | GPA (hm, DebugActiveProcessStop); | |
2809 | GPA (hm, GetCurrentConsoleFont); | |
2b008701 | 2810 | } |
33605d39 | 2811 | |
2b008701 | 2812 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 2813 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
2814 | if (!DebugBreakProcess) |
2815 | DebugBreakProcess = bad_DebugBreakProcess; | |
2816 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 2817 | { |
b3c613f2 CF |
2818 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
2819 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 2820 | } |
cd44747c PM |
2821 | if (!GetConsoleFontSize) |
2822 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
2823 | if (!GetCurrentConsoleFont) | |
2824 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 2825 | |
2b008701 | 2826 | /* Load optional functions used for retrieving filename information |
581e13c1 | 2827 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
2828 | hm = LoadLibrary ("psapi.dll"); |
2829 | if (hm) | |
2830 | { | |
43499ea3 PA |
2831 | GPA (hm, EnumProcessModules); |
2832 | GPA (hm, GetModuleInformation); | |
aec47d1d JB |
2833 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
2834 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
2835 | } |
2836 | ||
b3c613f2 | 2837 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
2838 | { |
2839 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 2840 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
2841 | EnumProcessModules = bad_EnumProcessModules; |
2842 | GetModuleInformation = bad_GetModuleInformation; | |
2843 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
2844 | /* This will probably fail on Windows 9x/Me. Let the user know |
2845 | that we're missing some functionality. */ | |
2846 | warning(_("\ | |
2847 | cannot automatically find executable file or library to read symbols.\n\ | |
2848 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
2849 | } |
2850 | ||
2851 | hm = LoadLibrary ("advapi32.dll"); | |
2852 | if (hm) | |
2853 | { | |
43499ea3 PA |
2854 | GPA (hm, OpenProcessToken); |
2855 | GPA (hm, LookupPrivilegeValueA); | |
2856 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 2857 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
2858 | else is needed. */ |
2859 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
2860 | || !AdjustTokenPrivileges) | |
b3c613f2 | 2861 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 2862 | } |
43499ea3 PA |
2863 | |
2864 | #undef GPA | |
33605d39 | 2865 | } |