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" |
463888ab | 59 | #include "inttypes.h" |
24e60978 | 60 | |
6c7de422 MK |
61 | #include "i386-tdep.h" |
62 | #include "i387-tdep.h" | |
63 | ||
31b060a2 CF |
64 | #include "windows-tdep.h" |
65 | #include "windows-nat.h" | |
df7e5265 | 66 | #include "x86-nat.h" |
ecc13e53 | 67 | #include "complaints.h" |
51a9c8c5 | 68 | #include "inf-child.h" |
de1b3c3d | 69 | |
418c6cb3 | 70 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
71 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
72 | #define DebugBreakProcess dyn_DebugBreakProcess | |
73 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
74 | #define EnumProcessModules dyn_EnumProcessModules | |
2b008701 | 75 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
76 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
77 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
78 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
79 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
2b008701 | 80 | |
43499ea3 PA |
81 | typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL, |
82 | PTOKEN_PRIVILEGES, | |
83 | DWORD, PTOKEN_PRIVILEGES, | |
84 | PDWORD); | |
85 | static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges; | |
86 | ||
87 | typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD); | |
88 | static DebugActiveProcessStop_ftype *DebugActiveProcessStop; | |
89 | ||
90 | typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE); | |
91 | static DebugBreakProcess_ftype *DebugBreakProcess; | |
92 | ||
93 | typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL); | |
94 | static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit; | |
95 | ||
96 | typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD, | |
97 | LPDWORD); | |
98 | static EnumProcessModules_ftype *EnumProcessModules; | |
99 | ||
100 | typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE, | |
101 | LPMODULEINFO, DWORD); | |
102 | static GetModuleInformation_ftype *GetModuleInformation; | |
103 | ||
104 | typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID); | |
105 | static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA; | |
106 | ||
107 | typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE); | |
108 | static OpenProcessToken_ftype *OpenProcessToken; | |
109 | ||
110 | typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL, | |
111 | CONSOLE_FONT_INFO *); | |
112 | static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont; | |
113 | ||
114 | typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD); | |
115 | static GetConsoleFontSize_ftype *GetConsoleFontSize; | |
2b008701 | 116 | |
b3c613f2 CF |
117 | #undef STARTUPINFO |
118 | #undef CreateProcess | |
119 | #undef GetModuleFileNameEx | |
120 | ||
121 | #ifndef __CYGWIN__ | |
122 | # define __PMAX (MAX_PATH + 1) | |
43499ea3 PA |
123 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD); |
124 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
125 | # define STARTUPINFO STARTUPINFOA |
126 | # define CreateProcess CreateProcessA | |
127 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
128 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
129 | #else | |
130 | # define __PMAX PATH_MAX | |
581e13c1 | 131 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
132 | static CORE_ADDR cygwin_load_start; |
133 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
134 | # define __USEWIDE |
135 | typedef wchar_t cygwin_buf_t; | |
43499ea3 PA |
136 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, |
137 | LPWSTR, DWORD); | |
138 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
139 | # define STARTUPINFO STARTUPINFOW |
140 | # define CreateProcess CreateProcessW | |
141 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
142 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 143 | #endif |
a244bdca | 144 | |
581e13c1 MS |
145 | static int have_saved_context; /* True if we've saved context from a |
146 | cygwin signal. */ | |
147 | static CONTEXT saved_context; /* Containes the saved context from a | |
148 | cygwin signal. */ | |
a244bdca | 149 | |
0714f9bf SS |
150 | /* If we're not using the old Cygwin header file set, define the |
151 | following which never should have been in the generic Win32 API | |
581e13c1 | 152 | headers in the first place since they were our own invention... */ |
0714f9bf | 153 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 154 | enum |
8e860359 CF |
155 | { |
156 | FLAG_TRACE_BIT = 0x100, | |
8e860359 | 157 | }; |
0714f9bf SS |
158 | #endif |
159 | ||
5851ab76 JB |
160 | #ifndef CONTEXT_EXTENDED_REGISTERS |
161 | /* This macro is only defined on ia32. It only makes sense on this target, | |
162 | so define it as zero if not already defined. */ | |
163 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
164 | #endif | |
165 | ||
f0666312 JT |
166 | #define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \ |
167 | | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \ | |
168 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 169 | |
41b4aadc | 170 | static uintptr_t dr[8]; |
87a45c96 CF |
171 | static int debug_registers_changed; |
172 | static int debug_registers_used; | |
16d905e2 CF |
173 | |
174 | static int windows_initialization_done; | |
6537bb24 | 175 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 176 | |
3cee93ac | 177 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 178 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
179 | #ifndef _CYGWIN_SIGNAL_STRING |
180 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
181 | #endif | |
3cee93ac | 182 | |
29fe111d | 183 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 184 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
185 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
186 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
187 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 188 | |
bfedc46a | 189 | static void windows_interrupt (struct target_ops *self, ptid_t); |
02529b48 | 190 | static int windows_thread_alive (struct target_ops *, ptid_t); |
7d85a9c0 | 191 | static void windows_kill_inferior (struct target_ops *); |
3cee93ac | 192 | |
9bb9e8ad PM |
193 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
194 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 195 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 196 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 197 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 198 | |
a493e3e2 | 199 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
581e13c1 | 200 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 201 | |
3cee93ac | 202 | /* Thread information structure used to track information that is |
6537bb24 | 203 | not available in gdb's thread structure. */ |
876d1cd7 | 204 | typedef struct windows_thread_info_struct |
3a4b77d8 | 205 | { |
876d1cd7 | 206 | struct windows_thread_info_struct *next; |
3a4b77d8 JM |
207 | DWORD id; |
208 | HANDLE h; | |
711e434b | 209 | CORE_ADDR thread_local_base; |
3a4b77d8 | 210 | char *name; |
6537bb24 | 211 | int suspended; |
3ade5333 | 212 | int reload_context; |
3a4b77d8 | 213 | CONTEXT context; |
1e37c281 | 214 | STACKFRAME sf; |
8e860359 | 215 | } |
876d1cd7 | 216 | windows_thread_info; |
1e37c281 | 217 | |
876d1cd7 | 218 | static windows_thread_info thread_head; |
24e60978 | 219 | |
581e13c1 | 220 | /* The process and thread handles for the above context. */ |
24e60978 | 221 | |
3cee93ac CF |
222 | static DEBUG_EVENT current_event; /* The current debug event from |
223 | WaitForDebugEvent */ | |
224 | static HANDLE current_process_handle; /* Currently executing process */ | |
876d1cd7 | 225 | static windows_thread_info *current_thread; /* Info on currently selected thread */ |
349b409f | 226 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 | 227 | |
581e13c1 | 228 | /* Counts of things. */ |
24e60978 SC |
229 | static int exception_count = 0; |
230 | static int event_count = 0; | |
dfe7f3ac | 231 | static int saw_create; |
bf25528d | 232 | static int open_process_used = 0; |
24e60978 | 233 | |
581e13c1 | 234 | /* User options. */ |
24e60978 | 235 | static int new_console = 0; |
10325bc5 | 236 | #ifdef __CYGWIN__ |
09280ddf | 237 | static int cygwin_exceptions = 0; |
10325bc5 | 238 | #endif |
1e37c281 | 239 | static int new_group = 1; |
dfe7f3ac CF |
240 | static int debug_exec = 0; /* show execution */ |
241 | static int debug_events = 0; /* show events from kernel */ | |
242 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 243 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
244 | static int useshell = 0; /* use shell for subprocesses */ |
245 | ||
7e63b4e4 | 246 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 247 | in the windows exception context vector. |
24e60978 | 248 | |
3cee93ac | 249 | It also contains the bit mask needed to load the register in question. |
24e60978 | 250 | |
7e63b4e4 JB |
251 | The contents of this table can only be computed by the units |
252 | that provide CPU-specific support for Windows native debugging. | |
253 | These units should set the table by calling | |
dc05df57 | 254 | windows_set_context_register_offsets. |
7e63b4e4 | 255 | |
24e60978 SC |
256 | One day we could read a reg, we could inspect the context we |
257 | already have loaded, if it doesn't have the bit set that we need, | |
258 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 259 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
260 | write a register, first we have to ensure that the context contains |
261 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 262 | out bit. */ |
24e60978 | 263 | |
7e63b4e4 | 264 | static const int *mappings; |
d3a09475 | 265 | |
d40dc7a8 JB |
266 | /* The function to use in order to determine whether a register is |
267 | a segment register or not. */ | |
268 | static segment_register_p_ftype *segment_register_p; | |
269 | ||
24e60978 | 270 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 271 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
272 | |
273 | struct xlate_exception | |
274 | { | |
275 | int them; | |
2ea28649 | 276 | enum gdb_signal us; |
24e60978 SC |
277 | }; |
278 | ||
24e60978 SC |
279 | static const struct xlate_exception |
280 | xlate[] = | |
281 | { | |
a493e3e2 PA |
282 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
283 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
284 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
285 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
286 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
287 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE}, | |
56db1d67 | 288 | {-1, GDB_SIGNAL_UNKNOWN}}; |
24e60978 | 289 | |
7e63b4e4 JB |
290 | /* Set the MAPPINGS static global to OFFSETS. |
291 | See the description of MAPPINGS for more details. */ | |
292 | ||
293 | void | |
dc05df57 | 294 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
295 | { |
296 | mappings = offsets; | |
297 | } | |
298 | ||
d40dc7a8 JB |
299 | /* See windows-nat.h. */ |
300 | ||
301 | void | |
302 | windows_set_segment_register_p (segment_register_p_ftype *fun) | |
303 | { | |
304 | segment_register_p = fun; | |
305 | } | |
306 | ||
fa4ba8da PM |
307 | static void |
308 | check (BOOL ok, const char *file, int line) | |
309 | { | |
310 | if (!ok) | |
d50a0ce2 CV |
311 | printf_filtered ("error return %s:%d was %u\n", file, line, |
312 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
313 | } |
314 | ||
6537bb24 PA |
315 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
316 | then also retrieve the context for this thread. If GET_CONTEXT is | |
317 | negative, then don't suspend the thread. */ | |
876d1cd7 | 318 | static windows_thread_info * |
3cee93ac | 319 | thread_rec (DWORD id, int get_context) |
24e60978 | 320 | { |
876d1cd7 | 321 | windows_thread_info *th; |
3cee93ac | 322 | |
3a4b77d8 | 323 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
324 | if (th->id == id) |
325 | { | |
6537bb24 | 326 | if (!th->suspended && get_context) |
3cee93ac | 327 | { |
8a892701 | 328 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
329 | { |
330 | if (SuspendThread (th->h) == (DWORD) -1) | |
331 | { | |
332 | DWORD err = GetLastError (); | |
22128028 | 333 | |
17617f2d EZ |
334 | /* We get Access Denied (5) when trying to suspend |
335 | threads that Windows started on behalf of the | |
336 | debuggee, usually when those threads are just | |
5d9c55d3 JT |
337 | about to exit. |
338 | We can get Invalid Handle (6) if the main thread | |
339 | has exited. */ | |
340 | if (err != ERROR_INVALID_HANDLE | |
341 | && err != ERROR_ACCESS_DENIED) | |
17617f2d EZ |
342 | warning (_("SuspendThread (tid=0x%x) failed." |
343 | " (winerr %u)"), | |
344 | (unsigned) id, (unsigned) err); | |
345 | th->suspended = -1; | |
6537bb24 | 346 | } |
17617f2d EZ |
347 | else |
348 | th->suspended = 1; | |
6537bb24 | 349 | } |
3cee93ac | 350 | else if (get_context < 0) |
6537bb24 | 351 | th->suspended = -1; |
3ade5333 | 352 | th->reload_context = 1; |
3cee93ac CF |
353 | } |
354 | return th; | |
355 | } | |
356 | ||
357 | return NULL; | |
358 | } | |
359 | ||
2dc38344 | 360 | /* Add a thread to the thread list. */ |
876d1cd7 | 361 | static windows_thread_info * |
711e434b | 362 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb) |
3cee93ac | 363 | { |
876d1cd7 | 364 | windows_thread_info *th; |
2dc38344 PA |
365 | DWORD id; |
366 | ||
367 | gdb_assert (ptid_get_tid (ptid) != 0); | |
368 | ||
369 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
370 | |
371 | if ((th = thread_rec (id, FALSE))) | |
372 | return th; | |
373 | ||
876d1cd7 | 374 | th = XCNEW (windows_thread_info); |
3cee93ac CF |
375 | th->id = id; |
376 | th->h = h; | |
711e434b | 377 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
378 | th->next = thread_head.next; |
379 | thread_head.next = th; | |
2dc38344 PA |
380 | add_thread (ptid); |
381 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
382 | if (debug_registers_used) |
383 | { | |
384 | /* Only change the value of the debug registers. */ | |
385 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
386 | CHECK (GetThreadContext (th->h, &th->context)); | |
387 | th->context.Dr0 = dr[0]; | |
388 | th->context.Dr1 = dr[1]; | |
389 | th->context.Dr2 = dr[2]; | |
390 | th->context.Dr3 = dr[3]; | |
6537bb24 | 391 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
392 | th->context.Dr7 = dr[7]; |
393 | CHECK (SetThreadContext (th->h, &th->context)); | |
394 | th->context.ContextFlags = 0; | |
395 | } | |
3cee93ac | 396 | return th; |
24e60978 SC |
397 | } |
398 | ||
3cee93ac | 399 | /* Clear out any old thread list and reintialize it to a |
581e13c1 | 400 | pristine state. */ |
24e60978 | 401 | static void |
dc05df57 | 402 | windows_init_thread_list (void) |
24e60978 | 403 | { |
876d1cd7 | 404 | windows_thread_info *th = &thread_head; |
3cee93ac | 405 | |
dc05df57 | 406 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
407 | init_thread_list (); |
408 | while (th->next != NULL) | |
24e60978 | 409 | { |
876d1cd7 | 410 | windows_thread_info *here = th->next; |
3cee93ac | 411 | th->next = here->next; |
b8c9b27d | 412 | xfree (here); |
24e60978 | 413 | } |
059198c1 | 414 | thread_head.next = NULL; |
3cee93ac CF |
415 | } |
416 | ||
581e13c1 | 417 | /* Delete a thread from the list of threads. */ |
3cee93ac | 418 | static void |
e0ea48a0 | 419 | windows_delete_thread (ptid_t ptid, DWORD exit_code) |
3cee93ac | 420 | { |
876d1cd7 | 421 | windows_thread_info *th; |
2dc38344 PA |
422 | DWORD id; |
423 | ||
424 | gdb_assert (ptid_get_tid (ptid) != 0); | |
425 | ||
426 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
427 | |
428 | if (info_verbose) | |
2dc38344 | 429 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
e0ea48a0 EZ |
430 | else if (print_thread_events && id != main_thread_id) |
431 | printf_unfiltered (_("[%s exited with code %u]\n"), | |
564eac42 | 432 | target_pid_to_str (ptid), (unsigned) exit_code); |
2dc38344 | 433 | delete_thread (ptid); |
3cee93ac CF |
434 | |
435 | for (th = &thread_head; | |
436 | th->next != NULL && th->next->id != id; | |
437 | th = th->next) | |
438 | continue; | |
439 | ||
440 | if (th->next != NULL) | |
24e60978 | 441 | { |
876d1cd7 | 442 | windows_thread_info *here = th->next; |
3cee93ac | 443 | th->next = here->next; |
b8c9b27d | 444 | xfree (here); |
24e60978 SC |
445 | } |
446 | } | |
447 | ||
3cee93ac | 448 | static void |
dc05df57 | 449 | do_windows_fetch_inferior_registers (struct regcache *regcache, int r) |
24e60978 | 450 | { |
1e37c281 | 451 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
452 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
453 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 454 | long l; |
6c7de422 | 455 | |
3ade5333 | 456 | if (!current_thread) |
d6dc8049 | 457 | return; /* Windows sometimes uses a non-existent thread id in its |
581e13c1 | 458 | events. */ |
3ade5333 CF |
459 | |
460 | if (current_thread->reload_context) | |
461 | { | |
f20c58f5 | 462 | #ifdef __CYGWIN__ |
a244bdca CF |
463 | if (have_saved_context) |
464 | { | |
581e13c1 MS |
465 | /* Lie about where the program actually is stopped since |
466 | cygwin has informed us that we should consider the signal | |
467 | to have occurred at another location which is stored in | |
468 | "saved_context. */ | |
469 | memcpy (¤t_thread->context, &saved_context, | |
470 | __COPY_CONTEXT_SIZE); | |
a244bdca CF |
471 | have_saved_context = 0; |
472 | } | |
473 | else | |
cb832706 | 474 | #endif |
a244bdca | 475 | { |
876d1cd7 | 476 | windows_thread_info *th = current_thread; |
a244bdca | 477 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 478 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 479 | /* Copy dr values from that thread. |
581e13c1 MS |
480 | But only if there were not modified since last stop. |
481 | PR gdb/2388 */ | |
88616312 PM |
482 | if (!debug_registers_changed) |
483 | { | |
484 | dr[0] = th->context.Dr0; | |
485 | dr[1] = th->context.Dr1; | |
486 | dr[2] = th->context.Dr2; | |
487 | dr[3] = th->context.Dr3; | |
488 | dr[6] = th->context.Dr6; | |
489 | dr[7] = th->context.Dr7; | |
490 | } | |
a244bdca | 491 | } |
3ade5333 CF |
492 | current_thread->reload_context = 0; |
493 | } | |
494 | ||
20a6ec49 | 495 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 496 | { |
8e860359 | 497 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 498 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 499 | } |
20a6ec49 | 500 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 501 | { |
8e860359 | 502 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 503 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 504 | } |
d40dc7a8 JB |
505 | else if (segment_register_p (r)) |
506 | { | |
507 | /* GDB treats segment registers as 32bit registers, but they are | |
508 | in fact only 16 bits long. Make sure we do not read extra | |
509 | bits from our source buffer. */ | |
510 | l = *((long *) context_offset) & 0xffff; | |
511 | regcache_raw_supply (regcache, r, (char *) &l); | |
512 | } | |
1e37c281 | 513 | else if (r >= 0) |
56be3814 | 514 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 515 | else |
24e60978 | 516 | { |
20a6ec49 | 517 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
dc05df57 | 518 | do_windows_fetch_inferior_registers (regcache, r); |
24e60978 | 519 | } |
3cee93ac CF |
520 | } |
521 | ||
522 | static void | |
28439f5e PA |
523 | windows_fetch_inferior_registers (struct target_ops *ops, |
524 | struct regcache *regcache, int r) | |
3cee93ac | 525 | { |
2dc38344 | 526 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 527 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 528 | thread id in its events. */ |
3ade5333 | 529 | if (current_thread) |
dc05df57 | 530 | do_windows_fetch_inferior_registers (regcache, r); |
3cee93ac CF |
531 | } |
532 | ||
533 | static void | |
dc05df57 | 534 | do_windows_store_inferior_registers (const struct regcache *regcache, int r) |
3cee93ac | 535 | { |
3ade5333 | 536 | if (!current_thread) |
581e13c1 | 537 | /* Windows sometimes uses a non-existent thread id in its events. */; |
3ade5333 | 538 | else if (r >= 0) |
56be3814 | 539 | regcache_raw_collect (regcache, r, |
822c9732 | 540 | ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
541 | else |
542 | { | |
40a6adc1 | 543 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
dc05df57 | 544 | do_windows_store_inferior_registers (regcache, r); |
24e60978 SC |
545 | } |
546 | } | |
547 | ||
581e13c1 | 548 | /* Store a new register value into the current thread context. */ |
3cee93ac | 549 | static void |
28439f5e PA |
550 | windows_store_inferior_registers (struct target_ops *ops, |
551 | struct regcache *regcache, int r) | |
3cee93ac | 552 | { |
2dc38344 | 553 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 554 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 555 | thread id in its events. */ |
3ade5333 | 556 | if (current_thread) |
dc05df57 | 557 | do_windows_store_inferior_registers (regcache, r); |
3cee93ac | 558 | } |
24e60978 | 559 | |
450005e7 | 560 | /* Encapsulate the information required in a call to |
581e13c1 | 561 | symbol_file_add_args. */ |
8a892701 CF |
562 | struct safe_symbol_file_add_args |
563 | { | |
564 | char *name; | |
565 | int from_tty; | |
566 | struct section_addr_info *addrs; | |
567 | int mainline; | |
568 | int flags; | |
7c5c87c0 | 569 | struct ui_file *err, *out; |
8a892701 CF |
570 | struct objfile *ret; |
571 | }; | |
572 | ||
581e13c1 | 573 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 574 | struct lm_info |
02e423b9 | 575 | { |
d3653bf6 | 576 | LPVOID load_addr; |
3ee6f623 CF |
577 | }; |
578 | ||
579 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 580 | |
de1b3c3d | 581 | static struct so_list * |
dc05df57 | 582 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 583 | { |
3ee6f623 | 584 | struct so_list *so; |
d0d0ab16 CV |
585 | char *p; |
586 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
587 | char buf[__PMAX]; |
588 | char cwd[__PMAX]; | |
3f8ad85b CF |
589 | WIN32_FIND_DATA w32_fd; |
590 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 591 | |
6badb179 CF |
592 | if (h == INVALID_HANDLE_VALUE) |
593 | strcpy (buf, name); | |
594 | else | |
3f8ad85b | 595 | { |
c914e0cc CF |
596 | FindClose (h); |
597 | strcpy (buf, name); | |
598 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
599 | { | |
600 | p = strrchr (buf, '\\'); | |
601 | if (p) | |
602 | p[1] = '\0'; | |
603 | SetCurrentDirectory (buf); | |
604 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
605 | SetCurrentDirectory (cwd); | |
606 | } | |
3f8ad85b | 607 | } |
3ee6f623 CF |
608 | if (strcasecmp (buf, "ntdll.dll") == 0) |
609 | { | |
610 | GetSystemDirectory (buf, sizeof (buf)); | |
611 | strcat (buf, "\\ntdll.dll"); | |
612 | } | |
d0d0ab16 | 613 | #else |
b3c613f2 | 614 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 615 | |
b3c613f2 | 616 | buf[0] = 0; |
d0d0ab16 CV |
617 | if (access (name, F_OK) != 0) |
618 | { | |
619 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 620 | #ifdef __USEWIDE |
d0d0ab16 CV |
621 | { |
622 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
623 | wcscat (buf, L"\\ntdll.dll"); | |
624 | } | |
b3c613f2 CF |
625 | #else |
626 | { | |
627 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
628 | strcat (buf, "\\ntdll.dll"); | |
629 | } | |
630 | #endif | |
d0d0ab16 CV |
631 | } |
632 | #endif | |
41bf6aca | 633 | so = XCNEW (struct so_list); |
8d749320 | 634 | so->lm_info = XNEW (struct lm_info); |
3ee6f623 | 635 | so->lm_info->load_addr = load_addr; |
de1b3c3d | 636 | strcpy (so->so_original_name, name); |
10325bc5 PA |
637 | #ifndef __CYGWIN__ |
638 | strcpy (so->so_name, buf); | |
639 | #else | |
d0d0ab16 CV |
640 | if (buf[0]) |
641 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
642 | SO_NAME_MAX_PATH_SIZE); | |
643 | else | |
644 | { | |
60c5c021 | 645 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
646 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
647 | { | |
648 | strcpy (so->so_name, rname); | |
649 | free (rname); | |
650 | } | |
651 | else | |
652 | error (_("dll path too long")); | |
653 | } | |
de1b3c3d PA |
654 | /* Record cygwin1.dll .text start/end. */ |
655 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
656 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
657 | { | |
658 | bfd *abfd; | |
659 | asection *text = NULL; | |
660 | CORE_ADDR text_vma; | |
8e860359 | 661 | |
1c00ec6b | 662 | abfd = gdb_bfd_open (so->so_name, "pei-i386", -1); |
a244bdca | 663 | |
de1b3c3d PA |
664 | if (!abfd) |
665 | return so; | |
666 | ||
667 | if (bfd_check_format (abfd, bfd_object)) | |
668 | text = bfd_get_section_by_name (abfd, ".text"); | |
669 | ||
670 | if (!text) | |
671 | { | |
cbb099e8 | 672 | gdb_bfd_unref (abfd); |
de1b3c3d PA |
673 | return so; |
674 | } | |
675 | ||
7a9dd1b2 | 676 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 677 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
678 | file header and the section alignment. */ |
679 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
680 | load_addr + 0x1000); | |
dc05df57 | 681 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); |
de1b3c3d | 682 | |
cbb099e8 | 683 | gdb_bfd_unref (abfd); |
de1b3c3d | 684 | } |
10325bc5 | 685 | #endif |
de1b3c3d PA |
686 | |
687 | return so; | |
8e860359 CF |
688 | } |
689 | ||
3ee6f623 | 690 | static char * |
dfe7f3ac CF |
691 | get_image_name (HANDLE h, void *address, int unicode) |
692 | { | |
d0d0ab16 | 693 | #ifdef __CYGWIN__ |
b3c613f2 | 694 | static char buf[__PMAX]; |
d0d0ab16 | 695 | #else |
b3c613f2 | 696 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 697 | #endif |
dfe7f3ac CF |
698 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
699 | char *address_ptr; | |
700 | int len = 0; | |
701 | char b[2]; | |
5732a500 | 702 | SIZE_T done; |
dfe7f3ac CF |
703 | |
704 | /* Attempt to read the name of the dll that was detected. | |
705 | This is documented to work only when actively debugging | |
581e13c1 | 706 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
707 | if (address == NULL) |
708 | return NULL; | |
709 | ||
dfe7f3ac | 710 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
711 | address isn't null. */ |
712 | if (!ReadProcessMemory (h, address, &address_ptr, | |
713 | sizeof (address_ptr), &done) | |
6f17862b | 714 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
715 | return NULL; |
716 | ||
581e13c1 | 717 | /* Find the length of the string. */ |
6f17862b CF |
718 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
719 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
720 | continue; | |
dfe7f3ac CF |
721 | |
722 | if (!unicode) | |
723 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
724 | else | |
725 | { | |
726 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
727 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
728 | &done); | |
d0d0ab16 | 729 | #ifdef __CYGWIN__ |
b3c613f2 | 730 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
731 | #else |
732 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
733 | 0, 0); | |
734 | #endif | |
dfe7f3ac CF |
735 | } |
736 | ||
737 | return buf; | |
738 | } | |
739 | ||
1cd9feab JB |
740 | /* Handle a DLL load event, and return 1. |
741 | ||
742 | This function assumes that this event did not occur during inferior | |
743 | initialization, where their event info may be incomplete (see | |
744 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
745 | on how we handle DLL loading during that phase). */ | |
746 | ||
1750a5ef | 747 | static int |
0a65a603 | 748 | handle_load_dll (void *dummy) |
24e60978 | 749 | { |
3a4b77d8 | 750 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
1cd9feab | 751 | char *dll_name; |
24e60978 | 752 | |
94481b8c JB |
753 | /* Try getting the DLL name via the lpImageName field of the event. |
754 | Note that Microsoft documents this fields as strictly optional, | |
755 | in the sense that it might be NULL. And the first DLL event in | |
756 | particular is explicitly documented as "likely not pass[ed]" | |
757 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
758 | dll_name = get_image_name (current_process_handle, |
759 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
760 | if (!dll_name) |
761 | return 1; | |
762 | ||
dc05df57 | 763 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 764 | solib_end = solib_end->next; |
450005e7 | 765 | |
a74ce742 PM |
766 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
767 | host_address_to_string (solib_end->lm_info->load_addr))); | |
7488902c | 768 | |
450005e7 CF |
769 | return 1; |
770 | } | |
771 | ||
3ee6f623 | 772 | static void |
dc05df57 | 773 | windows_free_so (struct so_list *so) |
3ee6f623 | 774 | { |
3ee6f623 CF |
775 | if (so->lm_info) |
776 | xfree (so->lm_info); | |
de1b3c3d | 777 | xfree (so); |
3cb8e7f6 CF |
778 | } |
779 | ||
3be75f87 JB |
780 | /* Handle a DLL unload event. |
781 | Return 1 if successful, or zero otherwise. | |
782 | ||
783 | This function assumes that this event did not occur during inferior | |
784 | initialization, where their event info may be incomplete (see | |
785 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
786 | on how we handle DLL loading during that phase). */ | |
787 | ||
d3ff4a77 | 788 | static int |
0a65a603 | 789 | handle_unload_dll (void *dummy) |
d3ff4a77 | 790 | { |
d3653bf6 | 791 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 792 | struct so_list *so; |
d3ff4a77 CF |
793 | |
794 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 795 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 796 | { |
3ee6f623 | 797 | struct so_list *sodel = so->next; |
a25cd31f | 798 | |
d3ff4a77 CF |
799 | so->next = sodel->next; |
800 | if (!so->next) | |
801 | solib_end = so; | |
7488902c PM |
802 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
803 | ||
dc05df57 | 804 | windows_free_so (sodel); |
d3ff4a77 CF |
805 | return 1; |
806 | } | |
3929abe9 | 807 | |
ecc13e53 JB |
808 | /* We did not find any DLL that was previously loaded at this address, |
809 | so register a complaint. We do not report an error, because we have | |
810 | observed that this may be happening under some circumstances. For | |
811 | instance, running 32bit applications on x64 Windows causes us to receive | |
812 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
813 | events are apparently caused by the WOW layer, the interface between | |
814 | 32bit and 64bit worlds). */ | |
815 | complaint (&symfile_complaints, _("dll starting at %s not found."), | |
816 | host_address_to_string (lpBaseOfDll)); | |
d3ff4a77 CF |
817 | |
818 | return 0; | |
819 | } | |
820 | ||
581e13c1 | 821 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 822 | static void |
dc05df57 | 823 | windows_clear_solib (void) |
450005e7 | 824 | { |
450005e7 CF |
825 | solib_start.next = NULL; |
826 | solib_end = &solib_start; | |
450005e7 | 827 | } |
295732ea | 828 | |
463888ab РИ |
829 | static void |
830 | signal_event_command (char *args, int from_tty) | |
831 | { | |
832 | uintptr_t event_id = 0; | |
833 | char *endargs = NULL; | |
834 | ||
835 | if (args == NULL) | |
836 | error (_("signal-event requires an argument (integer event id)")); | |
837 | ||
838 | event_id = strtoumax (args, &endargs, 10); | |
839 | ||
840 | if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || | |
841 | ((HANDLE) event_id == INVALID_HANDLE_VALUE)) | |
842 | error (_("Failed to convert `%s' to event id"), args); | |
843 | ||
844 | SetEvent ((HANDLE) event_id); | |
845 | CloseHandle ((HANDLE) event_id); | |
846 | } | |
847 | ||
3cee93ac CF |
848 | /* Handle DEBUG_STRING output from child process. |
849 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 850 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
851 | static int |
852 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
853 | { | |
a244bdca CF |
854 | char *s = NULL; |
855 | int retval = 0; | |
3cee93ac CF |
856 | |
857 | if (!target_read_string | |
2c647436 PM |
858 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
859 | &s, 1024, 0) | |
3cee93ac | 860 | || !s || !*s) |
a244bdca | 861 | /* nothing to do */; |
61012eef | 862 | else if (!startswith (s, _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 863 | { |
10325bc5 | 864 | #ifdef __CYGWIN__ |
61012eef | 865 | if (!startswith (s, "cYg")) |
10325bc5 | 866 | #endif |
040ea00b JT |
867 | { |
868 | char *p = strchr (s, '\0'); | |
869 | ||
870 | if (p > s && *--p == '\n') | |
871 | *p = '\0'; | |
872 | warning (("%s"), s); | |
873 | } | |
3cee93ac | 874 | } |
f20c58f5 | 875 | #ifdef __CYGWIN__ |
d3a09475 | 876 | else |
3cee93ac | 877 | { |
581e13c1 MS |
878 | /* Got a cygwin signal marker. A cygwin signal is followed by |
879 | the signal number itself and then optionally followed by the | |
880 | thread id and address to saved context within the DLL. If | |
881 | these are supplied, then the given thread is assumed to have | |
882 | issued the signal and the context from the thread is assumed | |
883 | to be stored at the given address in the inferior. Tell gdb | |
884 | to treat this like a real signal. */ | |
3cee93ac | 885 | char *p; |
3929abe9 | 886 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0ae534d2 | 887 | gdb_signal gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 888 | |
0714f9bf SS |
889 | ourstatus->value.sig = gotasig; |
890 | if (gotasig) | |
a244bdca CF |
891 | { |
892 | LPCVOID x; | |
2c15ef43 | 893 | SIZE_T n; |
c62fa0e2 | 894 | |
a244bdca CF |
895 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
896 | retval = strtoul (p, &p, 0); | |
897 | if (!retval) | |
898 | retval = main_thread_id; | |
40653b35 | 899 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 900 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
901 | &saved_context, |
902 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
903 | && n == __COPY_CONTEXT_SIZE) |
904 | have_saved_context = 1; | |
a244bdca | 905 | } |
3cee93ac | 906 | } |
cb832706 | 907 | #endif |
3cee93ac | 908 | |
a244bdca CF |
909 | if (s) |
910 | xfree (s); | |
911 | return retval; | |
3cee93ac | 912 | } |
24e60978 | 913 | |
c1748f97 PM |
914 | static int |
915 | display_selector (HANDLE thread, DWORD sel) | |
916 | { | |
917 | LDT_ENTRY info; | |
918 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
919 | { | |
920 | int base, limit; | |
d50a0ce2 | 921 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 922 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
923 | { |
924 | puts_filtered ("Segment not present\n"); | |
925 | return 0; | |
926 | } | |
c1748f97 PM |
927 | base = (info.HighWord.Bits.BaseHi << 24) + |
928 | (info.HighWord.Bits.BaseMid << 16) | |
929 | + info.BaseLow; | |
930 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
931 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 932 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
933 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
934 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 935 | puts_filtered(" 32-bit "); |
c1748f97 | 936 | else |
baa93fa6 | 937 | puts_filtered(" 16-bit "); |
c1748f97 PM |
938 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
939 | { | |
940 | case 0: | |
baa93fa6 CF |
941 | puts_filtered ("Data (Read-Only, Exp-up"); |
942 | break; | |
c1748f97 | 943 | case 1: |
baa93fa6 CF |
944 | puts_filtered ("Data (Read/Write, Exp-up"); |
945 | break; | |
c1748f97 | 946 | case 2: |
baa93fa6 CF |
947 | puts_filtered ("Unused segment ("); |
948 | break; | |
c1748f97 | 949 | case 3: |
baa93fa6 CF |
950 | puts_filtered ("Data (Read/Write, Exp-down"); |
951 | break; | |
c1748f97 | 952 | case 4: |
baa93fa6 CF |
953 | puts_filtered ("Code (Exec-Only, N.Conf"); |
954 | break; | |
c1748f97 | 955 | case 5: |
baa93fa6 | 956 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
957 | break; |
958 | case 6: | |
baa93fa6 | 959 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
960 | break; |
961 | case 7: | |
baa93fa6 | 962 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
963 | break; |
964 | default: | |
965 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
966 | } | |
967 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 968 | puts_filtered(", N.Acc"); |
c1748f97 PM |
969 | puts_filtered (")\n"); |
970 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
971 | puts_filtered("System selector "); | |
972 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
973 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 974 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
975 | else |
976 | puts_filtered ("Byte granular.\n"); | |
977 | return 1; | |
978 | } | |
979 | else | |
980 | { | |
5572ce1f PM |
981 | DWORD err = GetLastError (); |
982 | if (err == ERROR_NOT_SUPPORTED) | |
983 | printf_filtered ("Function not supported\n"); | |
984 | else | |
d50a0ce2 | 985 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
986 | return 0; |
987 | } | |
988 | } | |
989 | ||
990 | static void | |
991 | display_selectors (char * args, int from_tty) | |
992 | { | |
993 | if (!current_thread) | |
994 | { | |
995 | puts_filtered ("Impossible to display selectors now.\n"); | |
996 | return; | |
997 | } | |
998 | if (!args) | |
999 | { | |
1000 | ||
1001 | puts_filtered ("Selector $cs\n"); | |
1002 | display_selector (current_thread->h, | |
baa93fa6 | 1003 | current_thread->context.SegCs); |
c1748f97 PM |
1004 | puts_filtered ("Selector $ds\n"); |
1005 | display_selector (current_thread->h, | |
baa93fa6 | 1006 | current_thread->context.SegDs); |
c1748f97 PM |
1007 | puts_filtered ("Selector $es\n"); |
1008 | display_selector (current_thread->h, | |
baa93fa6 | 1009 | current_thread->context.SegEs); |
c1748f97 PM |
1010 | puts_filtered ("Selector $ss\n"); |
1011 | display_selector (current_thread->h, | |
baa93fa6 | 1012 | current_thread->context.SegSs); |
c1748f97 PM |
1013 | puts_filtered ("Selector $fs\n"); |
1014 | display_selector (current_thread->h, | |
1015 | current_thread->context.SegFs); | |
1016 | puts_filtered ("Selector $gs\n"); | |
1017 | display_selector (current_thread->h, | |
baa93fa6 | 1018 | current_thread->context.SegGs); |
c1748f97 PM |
1019 | } |
1020 | else | |
1021 | { | |
1022 | int sel; | |
1023 | sel = parse_and_eval_long (args); | |
1024 | printf_filtered ("Selector \"%s\"\n",args); | |
1025 | display_selector (current_thread->h, sel); | |
1026 | } | |
1027 | } | |
1028 | ||
7393af7c | 1029 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1030 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1031 | host_address_to_string (\ | |
1032 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1033 | |
36339ecd | 1034 | static int |
450005e7 | 1035 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1036 | { |
29fe111d | 1037 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 1038 | |
29fe111d | 1039 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1040 | |
581e13c1 | 1041 | /* Record the context of the current thread. */ |
c25b7cce | 1042 | thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1043 | |
29fe111d | 1044 | switch (code) |
24e60978 | 1045 | { |
1ef980b9 | 1046 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c | 1047 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
a493e3e2 | 1048 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
10325bc5 | 1049 | #ifdef __CYGWIN__ |
8da8e0b3 | 1050 | { |
581e13c1 MS |
1051 | /* See if the access violation happened within the cygwin DLL |
1052 | itself. Cygwin uses a kind of exception handling to deal | |
1053 | with passed-in invalid addresses. gdb should not treat | |
1054 | these as real SEGVs since they will be silently handled by | |
1055 | cygwin. A real SEGV will (theoretically) be caught by | |
1056 | cygwin later in the process and will be sent as a | |
1057 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1058 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1059 | const char *fn; |
581e13c1 MS |
1060 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) |
1061 | current_event.u.Exception.ExceptionRecord.ExceptionAddress; | |
1062 | ||
1063 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1064 | && addr < cygwin_load_end)) | |
a244bdca | 1065 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
61012eef | 1066 | && startswith (fn, "KERNEL32!IsBad"))) |
8da8e0b3 CF |
1067 | return 0; |
1068 | } | |
10325bc5 | 1069 | #endif |
7393af7c PM |
1070 | break; |
1071 | case STATUS_STACK_OVERFLOW: | |
1072 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
a493e3e2 | 1073 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
7393af7c PM |
1074 | break; |
1075 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1076 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
a493e3e2 | 1077 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1078 | break; |
1079 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1080 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
a493e3e2 | 1081 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1082 | break; |
1083 | case STATUS_FLOAT_INEXACT_RESULT: | |
1084 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
a493e3e2 | 1085 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1086 | break; |
1087 | case STATUS_FLOAT_INVALID_OPERATION: | |
1088 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
a493e3e2 | 1089 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1090 | break; |
1091 | case STATUS_FLOAT_OVERFLOW: | |
1092 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
a493e3e2 | 1093 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1094 | break; |
1095 | case STATUS_FLOAT_STACK_CHECK: | |
1096 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
a493e3e2 | 1097 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 | 1098 | break; |
3b7c8b74 | 1099 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c | 1100 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
a493e3e2 | 1101 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1102 | break; |
3b7c8b74 | 1103 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c | 1104 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
a493e3e2 | 1105 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1106 | break; |
3b7c8b74 | 1107 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1108 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
a493e3e2 | 1109 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
3b7c8b74 | 1110 | break; |
7393af7c PM |
1111 | case STATUS_INTEGER_OVERFLOW: |
1112 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
a493e3e2 | 1113 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 SC |
1114 | break; |
1115 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1116 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
a493e3e2 | 1117 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 SC |
1118 | break; |
1119 | case DBG_CONTROL_C: | |
7393af7c | 1120 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
a493e3e2 | 1121 | ourstatus->value.sig = GDB_SIGNAL_INT; |
5b421780 PM |
1122 | break; |
1123 | case DBG_CONTROL_BREAK: | |
7393af7c | 1124 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
a493e3e2 | 1125 | ourstatus->value.sig = GDB_SIGNAL_INT; |
1ef980b9 SC |
1126 | break; |
1127 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1128 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
a493e3e2 | 1129 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 | 1130 | break; |
8227c82d | 1131 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c | 1132 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
a493e3e2 | 1133 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1134 | break; |
1135 | case EXCEPTION_PRIV_INSTRUCTION: | |
1136 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
a493e3e2 | 1137 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1138 | break; |
1139 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1140 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
a493e3e2 | 1141 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
8227c82d | 1142 | break; |
1ef980b9 | 1143 | default: |
581e13c1 | 1144 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1145 | if (current_event.u.Exception.dwFirstChance) |
95824559 | 1146 | return 0; |
d50a0ce2 CV |
1147 | printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n", |
1148 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
a74ce742 PM |
1149 | host_address_to_string ( |
1150 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
a493e3e2 | 1151 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
1ef980b9 | 1152 | break; |
24e60978 | 1153 | } |
24e60978 | 1154 | exception_count++; |
7393af7c | 1155 | last_sig = ourstatus->value.sig; |
36339ecd | 1156 | return 1; |
24e60978 SC |
1157 | } |
1158 | ||
17617f2d EZ |
1159 | /* Resume thread specified by ID, or all artificially suspended |
1160 | threads, if we are continuing execution. KILLED non-zero means we | |
1161 | have killed the inferior, so we should ignore weird errors due to | |
1162 | threads shutting down. */ | |
3cee93ac | 1163 | static BOOL |
17617f2d | 1164 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac CF |
1165 | { |
1166 | int i; | |
876d1cd7 | 1167 | windows_thread_info *th; |
3cee93ac CF |
1168 | BOOL res; |
1169 | ||
0c3d84be | 1170 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n", |
d50a0ce2 CV |
1171 | (unsigned) current_event.dwProcessId, |
1172 | (unsigned) current_event.dwThreadId, | |
dfe7f3ac | 1173 | continue_status == DBG_CONTINUE ? |
7393af7c | 1174 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1175 | |
1176 | for (th = &thread_head; (th = th->next) != NULL;) | |
1177 | if ((id == -1 || id == (int) th->id) | |
1178 | && th->suspended) | |
1179 | { | |
1180 | if (debug_registers_changed) | |
1181 | { | |
1182 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1183 | th->context.Dr0 = dr[0]; | |
1184 | th->context.Dr1 = dr[1]; | |
1185 | th->context.Dr2 = dr[2]; | |
1186 | th->context.Dr3 = dr[3]; | |
1187 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1188 | th->context.Dr7 = dr[7]; | |
1189 | } | |
1190 | if (th->context.ContextFlags) | |
1191 | { | |
17617f2d EZ |
1192 | DWORD ec = 0; |
1193 | ||
1194 | if (GetExitCodeThread (th->h, &ec) | |
1195 | && ec == STILL_ACTIVE) | |
1196 | { | |
1197 | BOOL status = SetThreadContext (th->h, &th->context); | |
1198 | ||
1199 | if (!killed) | |
1200 | CHECK (status); | |
1201 | } | |
6537bb24 PA |
1202 | th->context.ContextFlags = 0; |
1203 | } | |
1204 | if (th->suspended > 0) | |
1205 | (void) ResumeThread (th->h); | |
1206 | th->suspended = 0; | |
1207 | } | |
1208 | ||
0714f9bf SS |
1209 | res = ContinueDebugEvent (current_event.dwProcessId, |
1210 | current_event.dwThreadId, | |
1211 | continue_status); | |
3cee93ac | 1212 | |
68ffc902 JT |
1213 | if (!res) |
1214 | error (_("Failed to resume program execution" | |
1215 | " (ContinueDebugEvent failed, error %u)"), | |
1216 | (unsigned int) GetLastError ()); | |
1217 | ||
fa4ba8da | 1218 | debug_registers_changed = 0; |
3cee93ac CF |
1219 | return res; |
1220 | } | |
1221 | ||
d6dc8049 CF |
1222 | /* Called in pathological case where Windows fails to send a |
1223 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1224 | static DWORD |
5439edaa | 1225 | fake_create_process (void) |
3ade5333 CF |
1226 | { |
1227 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1228 | current_event.dwProcessId); | |
bf25528d CF |
1229 | if (current_process_handle != NULL) |
1230 | open_process_used = 1; | |
1231 | else | |
1232 | { | |
d50a0ce2 CV |
1233 | error (_("OpenProcess call failed, GetLastError = %u"), |
1234 | (unsigned) GetLastError ()); | |
bf25528d CF |
1235 | /* We can not debug anything in that case. */ |
1236 | } | |
3ade5333 | 1237 | main_thread_id = current_event.dwThreadId; |
711e434b PM |
1238 | current_thread = windows_add_thread ( |
1239 | ptid_build (current_event.dwProcessId, 0, | |
1240 | current_event.dwThreadId), | |
1241 | current_event.u.CreateThread.hThread, | |
1242 | current_event.u.CreateThread.lpThreadLocalBase); | |
3ade5333 CF |
1243 | return main_thread_id; |
1244 | } | |
1245 | ||
a244bdca | 1246 | static void |
28439f5e | 1247 | windows_resume (struct target_ops *ops, |
2ea28649 | 1248 | ptid_t ptid, int step, enum gdb_signal sig) |
a244bdca | 1249 | { |
876d1cd7 | 1250 | windows_thread_info *th; |
a244bdca CF |
1251 | DWORD continue_status = DBG_CONTINUE; |
1252 | ||
2dc38344 PA |
1253 | /* A specific PTID means `step only this thread id'. */ |
1254 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1255 | ||
1256 | /* If we're continuing all threads, it's the current inferior that | |
1257 | should be handled specially. */ | |
1258 | if (resume_all) | |
1259 | ptid = inferior_ptid; | |
a244bdca | 1260 | |
a493e3e2 | 1261 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1262 | { |
1263 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1264 | { | |
1265 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1266 | } | |
1267 | else if (sig == last_sig) | |
1268 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1269 | else | |
1270 | #if 0 | |
1271 | /* This code does not seem to work, because | |
1272 | the kernel does probably not consider changes in the ExceptionRecord | |
1273 | structure when passing the exception to the inferior. | |
1274 | Note that this seems possible in the exception handler itself. */ | |
1275 | { | |
1276 | int i; | |
1277 | for (i = 0; xlate[i].them != -1; i++) | |
1278 | if (xlate[i].us == sig) | |
1279 | { | |
581e13c1 MS |
1280 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
1281 | = xlate[i].them; | |
a244bdca CF |
1282 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1283 | break; | |
1284 | } | |
1285 | if (continue_status == DBG_CONTINUE) | |
1286 | { | |
1287 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1288 | } | |
1289 | } | |
1290 | #endif | |
23942819 | 1291 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1292 | last_sig)); |
1293 | } | |
1294 | ||
a493e3e2 | 1295 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1296 | |
dc05df57 | 1297 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1298 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca | 1299 | |
581e13c1 | 1300 | /* Get context for currently selected thread. */ |
2dc38344 | 1301 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1302 | if (th) |
1303 | { | |
1304 | if (step) | |
1305 | { | |
581e13c1 | 1306 | /* Single step by setting t bit. */ |
a97b0ac8 UW |
1307 | struct regcache *regcache = get_current_regcache (); |
1308 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1309 | windows_fetch_inferior_registers (ops, regcache, | |
1310 | gdbarch_ps_regnum (gdbarch)); | |
a244bdca CF |
1311 | th->context.EFlags |= FLAG_TRACE_BIT; |
1312 | } | |
1313 | ||
1314 | if (th->context.ContextFlags) | |
1315 | { | |
1316 | if (debug_registers_changed) | |
1317 | { | |
1318 | th->context.Dr0 = dr[0]; | |
1319 | th->context.Dr1 = dr[1]; | |
1320 | th->context.Dr2 = dr[2]; | |
1321 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1322 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1323 | th->context.Dr7 = dr[7]; |
1324 | } | |
1325 | CHECK (SetThreadContext (th->h, &th->context)); | |
1326 | th->context.ContextFlags = 0; | |
1327 | } | |
1328 | } | |
1329 | ||
1330 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1331 | Otherwise complain. */ |
a244bdca | 1332 | |
2dc38344 | 1333 | if (resume_all) |
17617f2d | 1334 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1335 | else |
17617f2d | 1336 | windows_continue (continue_status, ptid_get_tid (ptid), 0); |
a244bdca CF |
1337 | } |
1338 | ||
695de547 CF |
1339 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1340 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1341 | Note that this function is not available prior to Windows XP. In this case | |
1342 | we emit a warning. */ | |
d603d4b3 | 1343 | static BOOL WINAPI |
695de547 CF |
1344 | ctrl_c_handler (DWORD event_type) |
1345 | { | |
1346 | const int attach_flag = current_inferior ()->attach_flag; | |
1347 | ||
bb0613a5 PM |
1348 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1349 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1350 | return FALSE; |
1351 | ||
1352 | /* If the inferior and the debugger share the same console, do nothing as | |
1353 | the inferior has also received the Ctrl-C event. */ | |
1354 | if (!new_console && !attach_flag) | |
1355 | return TRUE; | |
1356 | ||
1357 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1358 | warning (_("Could not interrupt program. " |
1359 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1360 | |
1361 | /* Return true to tell that Ctrl-C has been handled. */ | |
1362 | return TRUE; | |
1363 | } | |
1364 | ||
e6ad66bd JT |
1365 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1366 | requires handling by WFI (or whatever). */ | |
1e37c281 | 1367 | static int |
28439f5e PA |
1368 | get_windows_debug_event (struct target_ops *ops, |
1369 | int pid, struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1370 | { |
1371 | BOOL debug_event; | |
8a892701 | 1372 | DWORD continue_status, event_code; |
876d1cd7 YZ |
1373 | windows_thread_info *th; |
1374 | static windows_thread_info dummy_thread_info; | |
e6ad66bd | 1375 | DWORD thread_id = 0; |
1e37c281 | 1376 | |
a493e3e2 | 1377 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1378 | |
8a892701 | 1379 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1380 | goto out; |
1e37c281 JM |
1381 | |
1382 | event_count++; | |
1383 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1384 | |
8a892701 | 1385 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1386 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1387 | th = NULL; |
a244bdca | 1388 | have_saved_context = 0; |
8a892701 CF |
1389 | |
1390 | switch (event_code) | |
1e37c281 JM |
1391 | { |
1392 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1393 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1394 | (unsigned) current_event.dwProcessId, |
1395 | (unsigned) current_event.dwThreadId, | |
1396 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1397 | if (saw_create != 1) |
3ade5333 | 1398 | { |
181e7f93 PA |
1399 | struct inferior *inf; |
1400 | inf = find_inferior_pid (current_event.dwProcessId); | |
1401 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1402 | { |
d6dc8049 CF |
1403 | /* Kludge around a Windows bug where first event is a create |
1404 | thread event. Caused when attached process does not have | |
581e13c1 | 1405 | a main thread. */ |
e6ad66bd JT |
1406 | thread_id = fake_create_process (); |
1407 | if (thread_id) | |
181e7f93 | 1408 | saw_create++; |
3ade5333 CF |
1409 | } |
1410 | break; | |
1411 | } | |
581e13c1 | 1412 | /* Record the existence of this thread. */ |
e6ad66bd | 1413 | thread_id = current_event.dwThreadId; |
dc05df57 | 1414 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1415 | current_event.dwThreadId), |
711e434b PM |
1416 | current_event.u.CreateThread.hThread, |
1417 | current_event.u.CreateThread.lpThreadLocalBase); | |
1418 | ||
1e37c281 JM |
1419 | break; |
1420 | ||
1421 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1422 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1423 | (unsigned) current_event.dwProcessId, |
1424 | (unsigned) current_event.dwThreadId, | |
1425 | "EXIT_THREAD_DEBUG_EVENT")); | |
b3c613f2 | 1426 | |
87a45c96 CF |
1427 | if (current_event.dwThreadId != main_thread_id) |
1428 | { | |
dc05df57 | 1429 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1430 | current_event.dwThreadId), |
1431 | current_event.u.ExitThread.dwExitCode); | |
87a45c96 CF |
1432 | th = &dummy_thread_info; |
1433 | } | |
1e37c281 JM |
1434 | break; |
1435 | ||
1436 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1437 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1438 | (unsigned) current_event.dwProcessId, |
1439 | (unsigned) current_event.dwThreadId, | |
1440 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1441 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1442 | if (++saw_create != 1) |
bf25528d | 1443 | break; |
1e37c281 | 1444 | |
dfe7f3ac | 1445 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1446 | if (main_thread_id) |
695de547 | 1447 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1448 | main_thread_id), |
1449 | 0); | |
9d3789f7 | 1450 | main_thread_id = current_event.dwThreadId; |
581e13c1 | 1451 | /* Add the main thread. */ |
dc05df57 | 1452 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
695de547 | 1453 | current_event.dwThreadId), |
711e434b PM |
1454 | current_event.u.CreateProcessInfo.hThread, |
1455 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
e6ad66bd | 1456 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1457 | break; |
1458 | ||
1459 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1460 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1461 | (unsigned) current_event.dwProcessId, |
1462 | (unsigned) current_event.dwThreadId, | |
1463 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1464 | if (!windows_initialization_done) |
1465 | { | |
1466 | target_terminal_ours (); | |
1467 | target_mourn_inferior (); | |
1468 | error (_("During startup program exited with code 0x%x."), | |
1469 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1470 | } | |
1471 | else if (saw_create == 1) | |
1472 | { | |
1473 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1474 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
e6ad66bd | 1475 | thread_id = main_thread_id; |
16d905e2 | 1476 | } |
8a892701 | 1477 | break; |
1e37c281 JM |
1478 | |
1479 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1480 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1481 | (unsigned) current_event.dwProcessId, |
1482 | (unsigned) current_event.dwThreadId, | |
1483 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1484 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1485 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1486 | break; |
8a892701 | 1487 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1488 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1489 | ourstatus->value.integer = 0; | |
e6ad66bd | 1490 | thread_id = main_thread_id; |
1e37c281 JM |
1491 | break; |
1492 | ||
1493 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1494 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1495 | (unsigned) current_event.dwProcessId, |
1496 | (unsigned) current_event.dwThreadId, | |
1497 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1498 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1499 | break; |
d3ff4a77 | 1500 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1501 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1502 | ourstatus->value.integer = 0; | |
e6ad66bd | 1503 | thread_id = main_thread_id; |
d3ff4a77 | 1504 | break; |
1e37c281 JM |
1505 | |
1506 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1507 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1508 | (unsigned) current_event.dwProcessId, |
1509 | (unsigned) current_event.dwThreadId, | |
1510 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1511 | if (saw_create != 1) |
1512 | break; | |
95824559 PA |
1513 | if (handle_exception (ourstatus)) |
1514 | thread_id = current_event.dwThreadId; | |
1515 | else | |
1516 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1e37c281 JM |
1517 | break; |
1518 | ||
581e13c1 | 1519 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1520 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1521 | (unsigned) current_event.dwProcessId, |
1522 | (unsigned) current_event.dwThreadId, | |
1523 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1524 | if (saw_create != 1) |
1525 | break; | |
e6ad66bd | 1526 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1527 | break; |
9d3789f7 | 1528 | |
1e37c281 | 1529 | default: |
dfe7f3ac CF |
1530 | if (saw_create != 1) |
1531 | break; | |
0c3d84be | 1532 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1533 | (unsigned) current_event.dwProcessId, |
1534 | (unsigned) current_event.dwThreadId); | |
1535 | printf_unfiltered (" unknown event code %u\n", | |
1536 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1537 | break; |
1538 | } | |
1539 | ||
e6ad66bd | 1540 | if (!thread_id || saw_create != 1) |
a244bdca | 1541 | { |
95824559 | 1542 | CHECK (windows_continue (continue_status, -1, 0)); |
a244bdca | 1543 | } |
450005e7 | 1544 | else |
9d3789f7 | 1545 | { |
2dc38344 | 1546 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
e6ad66bd | 1547 | thread_id); |
776704b9 JT |
1548 | current_thread = th; |
1549 | if (!current_thread) | |
f16eab5f | 1550 | current_thread = thread_rec (thread_id, TRUE); |
9d3789f7 | 1551 | } |
1e37c281 JM |
1552 | |
1553 | out: | |
e6ad66bd | 1554 | return thread_id; |
1e37c281 JM |
1555 | } |
1556 | ||
2dc38344 | 1557 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1558 | static ptid_t |
117de6a9 | 1559 | windows_wait (struct target_ops *ops, |
47608cb1 | 1560 | ptid_t ptid, struct target_waitstatus *ourstatus, int options) |
24e60978 | 1561 | { |
2dc38344 | 1562 | int pid = -1; |
39f77062 | 1563 | |
c44537cf CV |
1564 | target_terminal_ours (); |
1565 | ||
24e60978 SC |
1566 | /* We loop when we get a non-standard exception rather than return |
1567 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1568 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1569 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1570 | isn't necessarily what you think it is. */ |
24e60978 SC |
1571 | |
1572 | while (1) | |
450005e7 | 1573 | { |
c57918b2 | 1574 | int retval; |
2b008701 | 1575 | |
695de547 CF |
1576 | /* If the user presses Ctrl-c while the debugger is waiting |
1577 | for an event, he expects the debugger to interrupt his program | |
1578 | and to get the prompt back. There are two possible situations: | |
1579 | ||
1580 | - The debugger and the program do not share the console, in | |
1581 | which case the Ctrl-c event only reached the debugger. | |
1582 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1583 | the inferior. Note that this case is working starting with |
1584 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1585 | inferior console. |
1586 | ||
1587 | - The debugger and the program share the same console, in which | |
1588 | case both debugger and inferior will receive the Ctrl-c event. | |
1589 | In that case the ctrl_c handler will ignore the event, as the | |
1590 | Ctrl-c event generated inside the inferior will trigger the | |
1591 | expected debug event. | |
1592 | ||
1593 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1594 | signal first and the delay until GDB receives that signal | |
1595 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1596 | after we have unblocked the CTRL+C handler. This would | |
1597 | lead to the debugger stopping prematurely while handling | |
1598 | the new-thread event that comes with the handling of the SIGINT | |
1599 | inside the inferior, and then stop again immediately when | |
1600 | the user tries to resume the execution in the inferior. | |
1601 | This is a classic race that we should try to fix one day. */ | |
1602 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
28439f5e | 1603 | retval = get_windows_debug_event (ops, pid, ourstatus); |
695de547 | 1604 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1605 | |
450005e7 | 1606 | if (retval) |
2dc38344 | 1607 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1608 | else |
1609 | { | |
1610 | int detach = 0; | |
3cee93ac | 1611 | |
98bbd631 AC |
1612 | if (deprecated_ui_loop_hook != NULL) |
1613 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1614 | |
450005e7 | 1615 | if (detach) |
7d85a9c0 | 1616 | windows_kill_inferior (ops); |
450005e7 CF |
1617 | } |
1618 | } | |
24e60978 SC |
1619 | } |
1620 | ||
ea39ad35 JB |
1621 | /* Iterate over all DLLs currently mapped by our inferior, and |
1622 | add them to our list of solibs. */ | |
94481b8c JB |
1623 | |
1624 | static void | |
ea39ad35 | 1625 | windows_add_all_dlls (void) |
94481b8c JB |
1626 | { |
1627 | struct so_list *so; | |
1628 | HMODULE dummy_hmodule; | |
1629 | DWORD cb_needed; | |
1630 | HMODULE *hmodules; | |
1631 | int i; | |
1632 | ||
94481b8c JB |
1633 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, |
1634 | sizeof (HMODULE), &cb_needed) == 0) | |
1635 | return; | |
1636 | ||
1637 | if (cb_needed < 1) | |
1638 | return; | |
1639 | ||
1640 | hmodules = (HMODULE *) alloca (cb_needed); | |
1641 | if (EnumProcessModules (current_process_handle, hmodules, | |
1642 | cb_needed, &cb_needed) == 0) | |
1643 | return; | |
1644 | ||
ea39ad35 | 1645 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
1646 | { |
1647 | MODULEINFO mi; | |
774f74c2 PM |
1648 | #ifdef __USEWIDE |
1649 | wchar_t dll_name[__PMAX]; | |
1650 | char name[__PMAX]; | |
1651 | #else | |
94481b8c | 1652 | char dll_name[__PMAX]; |
774f74c2 PM |
1653 | char *name; |
1654 | #endif | |
94481b8c JB |
1655 | if (GetModuleInformation (current_process_handle, hmodules[i], |
1656 | &mi, sizeof (mi)) == 0) | |
1657 | continue; | |
1658 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
1659 | dll_name, sizeof (dll_name)) == 0) | |
1660 | continue; | |
774f74c2 PM |
1661 | #ifdef __USEWIDE |
1662 | wcstombs (name, dll_name, __PMAX); | |
1663 | #else | |
1664 | name = dll_name; | |
1665 | #endif | |
ea39ad35 JB |
1666 | |
1667 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
1668 | solib_end = solib_end->next; | |
94481b8c JB |
1669 | } |
1670 | } | |
1671 | ||
9d3789f7 | 1672 | static void |
dc05df57 | 1673 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 | 1674 | { |
fa4ba8da | 1675 | int i; |
d6b48e9c | 1676 | struct inferior *inf; |
2020b7ab | 1677 | struct thread_info *tp; |
9d3789f7 | 1678 | |
a493e3e2 | 1679 | last_sig = GDB_SIGNAL_0; |
9d3789f7 CF |
1680 | event_count = 0; |
1681 | exception_count = 0; | |
bf25528d | 1682 | open_process_used = 0; |
fa4ba8da | 1683 | debug_registers_changed = 0; |
dfe7f3ac | 1684 | debug_registers_used = 0; |
fa4ba8da PM |
1685 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1686 | dr[i] = 0; | |
10325bc5 | 1687 | #ifdef __CYGWIN__ |
de1b3c3d | 1688 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1689 | #endif |
9d3789f7 CF |
1690 | current_event.dwProcessId = pid; |
1691 | memset (¤t_event, 0, sizeof (current_event)); | |
6a3cb8e8 PA |
1692 | if (!target_is_pushed (ops)) |
1693 | push_target (ops); | |
cb851954 | 1694 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1695 | windows_clear_solib (); |
88056fbb | 1696 | clear_proceed_status (0); |
9d3789f7 CF |
1697 | init_wait_for_inferior (); |
1698 | ||
6c95b8df PA |
1699 | inf = current_inferior (); |
1700 | inferior_appeared (inf, pid); | |
181e7f93 | 1701 | inf->attach_flag = attaching; |
7f9f62ba | 1702 | |
9f9d052e PM |
1703 | /* Make the new process the current inferior, so terminal handling |
1704 | can rely on it. When attaching, we don't know about any thread | |
1705 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1706 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1707 | inferior_ptid = pid_to_ptid (pid); |
1708 | ||
5842f62a | 1709 | target_terminal_init (); |
9d3789f7 CF |
1710 | target_terminal_inferior (); |
1711 | ||
16d905e2 | 1712 | windows_initialization_done = 0; |
c72f45d1 | 1713 | |
9d3789f7 CF |
1714 | while (1) |
1715 | { | |
c72f45d1 PA |
1716 | struct target_waitstatus status; |
1717 | ||
1718 | windows_wait (ops, minus_one_ptid, &status, 0); | |
1719 | ||
1720 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
1721 | events. */ | |
1722 | if (status.kind != TARGET_WAITKIND_LOADED | |
1723 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 1724 | break; |
c72f45d1 PA |
1725 | |
1726 | windows_resume (ops, minus_one_ptid, 0, GDB_SIGNAL_0); | |
9d3789f7 | 1727 | } |
eff8332b | 1728 | |
ea39ad35 | 1729 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
1730 | we can iterate over all DLLs and load them in. |
1731 | ||
1732 | We avoid doing it any earlier because, on certain versions of Windows, | |
1733 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
1734 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
1735 | include the DLL name, preventing us from creating an associated SO. | |
1736 | A possible explanation is that ntdll.dll might be mapped before | |
1737 | the SO info gets created by the Windows system -- ntdll.dll is | |
1738 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
1739 | do not seem to suffer from that problem. | |
1740 | ||
1741 | Rather than try to work around this sort of issue, it is much | |
1742 | simpler to just ignore DLL load/unload events during the startup | |
1743 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 1744 | windows_add_all_dlls (); |
94481b8c | 1745 | |
16d905e2 | 1746 | windows_initialization_done = 1; |
9d3789f7 CF |
1747 | return; |
1748 | } | |
1749 | ||
616a9dc4 CV |
1750 | /* Try to set or remove a user privilege to the current process. Return -1 |
1751 | if that fails, the previous setting of that privilege otherwise. | |
1752 | ||
1753 | This code is copied from the Cygwin source code and rearranged to allow | |
1754 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 1755 | available on NT/2K/XP. */ |
616a9dc4 CV |
1756 | static int |
1757 | set_process_privilege (const char *privilege, BOOL enable) | |
1758 | { | |
616a9dc4 CV |
1759 | HANDLE token_hdl = NULL; |
1760 | LUID restore_priv; | |
1761 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1762 | int ret = -1; | |
1763 | DWORD size; | |
1764 | ||
616a9dc4 CV |
1765 | if (!OpenProcessToken (GetCurrentProcess (), |
1766 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1767 | &token_hdl)) | |
1768 | goto out; | |
1769 | ||
418c6cb3 | 1770 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1771 | goto out; |
1772 | ||
1773 | new_priv.PrivilegeCount = 1; | |
1774 | new_priv.Privileges[0].Luid = restore_priv; | |
1775 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1776 | ||
1777 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1778 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1779 | goto out; |
1780 | #if 0 | |
1781 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1782 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 1783 | windows_attach(). */ |
616a9dc4 | 1784 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 1785 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
1786 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
1787 | goto out; | |
1788 | #endif | |
1789 | ||
1790 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1791 | ||
1792 | out: | |
1793 | if (token_hdl) | |
1794 | CloseHandle (token_hdl); | |
1795 | ||
1796 | return ret; | |
1797 | } | |
1798 | ||
02cc9f49 | 1799 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1800 | static void |
c0939df1 | 1801 | windows_attach (struct target_ops *ops, const char *args, int from_tty) |
24e60978 SC |
1802 | { |
1803 | BOOL ok; | |
559e75c0 | 1804 | DWORD pid; |
24e60978 | 1805 | |
74164c56 | 1806 | pid = parse_pid_to_attach (args); |
24e60978 | 1807 | |
616a9dc4 CV |
1808 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1809 | { | |
1810 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
1811 | printf_unfiltered ("This can cause attach to " |
1812 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
1813 | } |
1814 | ||
dc05df57 | 1815 | windows_init_thread_list (); |
9d3789f7 | 1816 | ok = DebugActiveProcess (pid); |
91a175b3 | 1817 | saw_create = 0; |
24e60978 | 1818 | |
10325bc5 | 1819 | #ifdef __CYGWIN__ |
24e60978 | 1820 | if (!ok) |
baa93fa6 | 1821 | { |
581e13c1 | 1822 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
1823 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
1824 | ||
1825 | if (pid > 0) | |
1826 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1827 | } |
1828 | #endif | |
baa93fa6 | 1829 | |
10325bc5 PA |
1830 | if (!ok) |
1831 | error (_("Can't attach to process.")); | |
24e60978 | 1832 | |
2b008701 | 1833 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1834 | |
24e60978 SC |
1835 | if (from_tty) |
1836 | { | |
1837 | char *exec_file = (char *) get_exec_file (0); | |
1838 | ||
1839 | if (exec_file) | |
1840 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1841 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1842 | else |
1843 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1844 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1845 | |
1846 | gdb_flush (gdb_stdout); | |
1847 | } | |
1848 | ||
dc05df57 | 1849 | do_initial_windows_stuff (ops, pid, 1); |
9d3789f7 | 1850 | target_terminal_ours (); |
24e60978 SC |
1851 | } |
1852 | ||
24e60978 | 1853 | static void |
52554a0e | 1854 | windows_detach (struct target_ops *ops, const char *args, int from_tty) |
24e60978 | 1855 | { |
02cc9f49 CV |
1856 | int detached = 1; |
1857 | ||
2b008701 | 1858 | ptid_t ptid = {-1}; |
a493e3e2 | 1859 | windows_resume (ops, ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 1860 | |
2b008701 CF |
1861 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
1862 | { | |
d50a0ce2 CV |
1863 | error (_("Can't detach process %u (error %u)"), |
1864 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 1865 | detached = 0; |
02cc9f49 | 1866 | } |
2b008701 CF |
1867 | DebugSetProcessKillOnExit (FALSE); |
1868 | ||
02cc9f49 | 1869 | if (detached && from_tty) |
24e60978 SC |
1870 | { |
1871 | char *exec_file = get_exec_file (0); | |
1872 | if (exec_file == 0) | |
1873 | exec_file = ""; | |
d50a0ce2 CV |
1874 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
1875 | (unsigned) current_event.dwProcessId); | |
24e60978 SC |
1876 | gdb_flush (gdb_stdout); |
1877 | } | |
7f9f62ba | 1878 | |
df7e5265 | 1879 | x86_cleanup_dregs (); |
39f77062 | 1880 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1881 | detach_inferior (current_event.dwProcessId); |
1882 | ||
6a3cb8e8 | 1883 | inf_child_maybe_unpush_target (ops); |
24e60978 SC |
1884 | } |
1885 | ||
47f7ffdb JB |
1886 | /* Try to determine the executable filename. |
1887 | ||
1888 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
1889 | ||
1890 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
1891 | this function returns nonzero. | |
1892 | ||
1893 | Otherwise, this function returns zero and the contents of | |
1894 | EXE_NAME_RET is undefined. */ | |
1895 | ||
1896 | static int | |
1897 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
1898 | { | |
1899 | DWORD len; | |
1900 | HMODULE dh_buf; | |
1901 | DWORD cbNeeded; | |
1902 | ||
1903 | cbNeeded = 0; | |
1904 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
1905 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1906 | return 0; | |
1907 | ||
1908 | /* We know the executable is always first in the list of modules, | |
1909 | which we just fetched. So no need to fetch more. */ | |
1910 | ||
1911 | #ifdef __CYGWIN__ | |
1912 | { | |
1913 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
1914 | the filename into a temporary buffer first, and then convert it | |
1915 | to POSIX format into the destination buffer. */ | |
0ae534d2 | 1916 | cygwin_buf_t *pathbuf = (cygwin_buf_t *) alloca (exe_name_max_len * sizeof (cygwin_buf_t)); |
47f7ffdb JB |
1917 | |
1918 | len = GetModuleFileNameEx (current_process_handle, | |
1919 | dh_buf, pathbuf, exe_name_max_len); | |
1920 | if (len == 0) | |
1921 | error (_("Error getting executable filename: %u."), | |
1922 | (unsigned) GetLastError ()); | |
1923 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
1924 | exe_name_max_len) < 0) | |
1925 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
1926 | } | |
1927 | #else | |
1928 | len = GetModuleFileNameEx (current_process_handle, | |
1929 | dh_buf, exe_name_ret, exe_name_max_len); | |
1930 | if (len == 0) | |
1931 | error (_("Error getting executable filename: %u."), | |
1932 | (unsigned) GetLastError ()); | |
1933 | #endif | |
1934 | ||
1935 | return 1; /* success */ | |
1936 | } | |
1937 | ||
1938 | /* The pid_to_exec_file target_ops method for this platform. */ | |
1939 | ||
3ee6f623 | 1940 | static char * |
8dd27370 | 1941 | windows_pid_to_exec_file (struct target_ops *self, int pid) |
47216e51 | 1942 | { |
b3c613f2 | 1943 | static char path[__PMAX]; |
10325bc5 | 1944 | #ifdef __CYGWIN__ |
581e13c1 | 1945 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
1946 | int nchars; |
1947 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
1948 | |
1949 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
1950 | nchars = readlink (procexe, path, sizeof(path)); |
1951 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 1952 | { |
33605d39 CF |
1953 | path[nchars] = '\0'; /* Got it */ |
1954 | return path; | |
47216e51 | 1955 | } |
10325bc5 PA |
1956 | #endif |
1957 | ||
33605d39 | 1958 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 1959 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 1960 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
1961 | path[0] = '\0'; |
1962 | ||
1963 | return path; | |
47216e51 CV |
1964 | } |
1965 | ||
24e60978 SC |
1966 | /* Print status information about what we're accessing. */ |
1967 | ||
1968 | static void | |
dc05df57 | 1969 | windows_files_info (struct target_ops *ignore) |
24e60978 | 1970 | { |
181e7f93 PA |
1971 | struct inferior *inf = current_inferior (); |
1972 | ||
24e60978 | 1973 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
1974 | inf->attach_flag ? "attached" : "child", |
1975 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
1976 | } |
1977 | ||
cd44747c PM |
1978 | /* Modify CreateProcess parameters for use of a new separate console. |
1979 | Parameters are: | |
1980 | *FLAGS: DWORD parameter for general process creation flags. | |
1981 | *SI: STARTUPINFO structure, for which the console window size and | |
1982 | console buffer size is filled in if GDB is running in a console. | |
1983 | to create the new console. | |
1984 | The size of the used font is not available on all versions of | |
1985 | Windows OS. Furthermore, the current font might not be the default | |
1986 | font, but this is still better than before. | |
1987 | If the windows and buffer sizes are computed, | |
1988 | SI->DWFLAGS is changed so that this information is used | |
1989 | by CreateProcess function. */ | |
1990 | ||
1991 | static void | |
1992 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
1993 | { | |
1994 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
1995 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
1996 | ||
1997 | if (hconsole != INVALID_HANDLE_VALUE) | |
1998 | { | |
1999 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2000 | COORD font_size; | |
2001 | CONSOLE_FONT_INFO cfi; | |
2002 | ||
2003 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2004 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2005 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2006 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2007 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2008 | if (font_size.X) | |
2009 | si->dwXSize *= font_size.X; | |
2010 | else | |
2011 | si->dwXSize *= 8; | |
2012 | if (font_size.Y) | |
2013 | si->dwYSize *= font_size.Y; | |
2014 | else | |
2015 | si->dwYSize *= 12; | |
2016 | si->dwXCountChars = sbinfo.dwSize.X; | |
2017 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2018 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2019 | } | |
2020 | *flags |= CREATE_NEW_CONSOLE; | |
2021 | } | |
2022 | ||
c93dbcba EZ |
2023 | #ifndef __CYGWIN__ |
2024 | /* Function called by qsort to sort environment strings. */ | |
2025 | ||
2026 | static int | |
2027 | envvar_cmp (const void *a, const void *b) | |
2028 | { | |
2029 | const char **p = (const char **) a; | |
2030 | const char **q = (const char **) b; | |
2031 | return strcasecmp (*p, *q); | |
2032 | } | |
2033 | #endif | |
2034 | ||
b7ff339d CV |
2035 | #ifdef __CYGWIN__ |
2036 | static void | |
2037 | clear_win32_environment (char **env) | |
2038 | { | |
2039 | int i; | |
2040 | size_t len; | |
2041 | wchar_t *copy = NULL, *equalpos; | |
2042 | ||
2043 | for (i = 0; env[i] && *env[i]; i++) | |
2044 | { | |
2045 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2046 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2047 | mbstowcs (copy, env[i], len); | |
2048 | equalpos = wcschr (copy, L'='); | |
2049 | if (equalpos) | |
2050 | *equalpos = L'\0'; | |
2051 | SetEnvironmentVariableW (copy, NULL); | |
2052 | } | |
2053 | xfree (copy); | |
2054 | } | |
2055 | #endif | |
2056 | ||
dc05df57 | 2057 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2058 | EXEC_FILE is the file to run. |
2059 | ALLARGS is a string containing the arguments to the program. | |
2060 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2061 | ||
24e60978 | 2062 | static void |
dc05df57 | 2063 | windows_create_inferior (struct target_ops *ops, char *exec_file, |
136d6dae | 2064 | char *allargs, char **in_env, int from_tty) |
24e60978 | 2065 | { |
b3c613f2 | 2066 | STARTUPINFO si; |
41b4aadc | 2067 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2068 | cygwin_buf_t real_path[__PMAX]; |
2069 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 | 2070 | const char *sh; |
b3c613f2 CF |
2071 | cygwin_buf_t *toexec; |
2072 | cygwin_buf_t *cygallargs; | |
2073 | cygwin_buf_t *args; | |
b7ff339d CV |
2074 | char **old_env = NULL; |
2075 | PWCHAR w32_env; | |
d0d0ab16 | 2076 | size_t len; |
2becadee CF |
2077 | int tty; |
2078 | int ostdin, ostdout, ostderr; | |
41b4aadc | 2079 | #else |
b3c613f2 CF |
2080 | char real_path[__PMAX]; |
2081 | char shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 CV |
2082 | char *toexec; |
2083 | char *args; | |
8f205f9c | 2084 | size_t args_len; |
41b4aadc | 2085 | HANDLE tty; |
c93dbcba EZ |
2086 | char *w32env; |
2087 | char *temp; | |
2088 | size_t envlen; | |
2089 | int i; | |
2090 | size_t envsize; | |
2091 | char **env; | |
41b4aadc | 2092 | #endif |
d0d0ab16 CV |
2093 | PROCESS_INFORMATION pi; |
2094 | BOOL ret; | |
2095 | DWORD flags = 0; | |
3cb3b8df | 2096 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2097 | |
2098 | if (!exec_file) | |
8a3fe4f8 | 2099 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
2100 | |
2101 | memset (&si, 0, sizeof (si)); | |
2102 | si.cb = sizeof (si); | |
2103 | ||
d0d0ab16 CV |
2104 | if (new_group) |
2105 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2106 | ||
2107 | if (new_console) | |
cd44747c | 2108 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2109 | |
10325bc5 | 2110 | #ifdef __CYGWIN__ |
349b409f | 2111 | if (!useshell) |
dfe7f3ac | 2112 | { |
d0d0ab16 CV |
2113 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2114 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2115 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2116 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2117 | toexec = real_path; |
b3c613f2 | 2118 | #ifdef __USEWIDE |
d0d0ab16 CV |
2119 | len = mbstowcs (NULL, allargs, 0) + 1; |
2120 | if (len == (size_t) -1) | |
2121 | error (_("Error starting executable: %d"), errno); | |
2122 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2123 | mbstowcs (cygallargs, allargs, len); | |
60c5c021 CF |
2124 | #else |
2125 | cygallargs = allargs; | |
b3c613f2 | 2126 | #endif |
dfe7f3ac CF |
2127 | } |
2128 | else | |
2129 | { | |
349b409f CF |
2130 | sh = getenv ("SHELL"); |
2131 | if (!sh) | |
2132 | sh = "/bin/sh"; | |
b3c613f2 | 2133 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2134 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2135 | #ifdef __USEWIDE |
d0d0ab16 CV |
2136 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2137 | + mbstowcs (NULL, allargs, 0) + 2; | |
2138 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2139 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2140 | #else |
08850b56 PM |
2141 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2142 | + strlen (allargs) + 2); | |
2143 | cygallargs = (char *) alloca (len); | |
2144 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2145 | #endif |
dfe7f3ac | 2146 | toexec = shell; |
d0d0ab16 | 2147 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2148 | } |
b3c613f2 CF |
2149 | |
2150 | #ifdef __USEWIDE | |
2151 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2152 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2153 | wcscpy (args, toexec); |
2154 | wcscat (args, L" "); | |
2155 | wcscat (args, cygallargs); | |
b3c613f2 CF |
2156 | #else |
2157 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); | |
2158 | strcpy (args, toexec); | |
2159 | strcat (args, " "); | |
2160 | strcat (args, cygallargs); | |
2161 | #endif | |
2162 | ||
b7ff339d CV |
2163 | #ifdef CW_CVT_ENV_TO_WINENV |
2164 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2165 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2166 | if (w32_env != (PWCHAR) -1) | |
2167 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2168 | else | |
2169 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
2170 | #endif | |
2171 | { | |
2172 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2173 | clear_win32_environment (environ); | |
2174 | /* Prepare the environment vars for CreateProcess. */ | |
2175 | old_env = environ; | |
2176 | environ = in_env; | |
2177 | cygwin_internal (CW_SYNC_WINENV); | |
2178 | w32_env = NULL; | |
2179 | } | |
1750a5ef | 2180 | |
2becadee CF |
2181 | if (!inferior_io_terminal) |
2182 | tty = ostdin = ostdout = ostderr = -1; | |
2183 | else | |
2184 | { | |
2185 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2186 | if (tty < 0) | |
2187 | { | |
2188 | print_sys_errmsg (inferior_io_terminal, errno); | |
2189 | ostdin = ostdout = ostderr = -1; | |
2190 | } | |
2191 | else | |
2192 | { | |
2193 | ostdin = dup (0); | |
2194 | ostdout = dup (1); | |
2195 | ostderr = dup (2); | |
2196 | dup2 (tty, 0); | |
2197 | dup2 (tty, 1); | |
2198 | dup2 (tty, 2); | |
2199 | } | |
2200 | } | |
d0d0ab16 CV |
2201 | |
2202 | windows_init_thread_list (); | |
b3c613f2 CF |
2203 | ret = CreateProcess (0, |
2204 | args, /* command line */ | |
2205 | NULL, /* Security */ | |
2206 | NULL, /* thread */ | |
2207 | TRUE, /* inherit handles */ | |
2208 | flags, /* start flags */ | |
b7ff339d | 2209 | w32_env, /* environment */ |
b3c613f2 CF |
2210 | NULL, /* current directory */ |
2211 | &si, | |
2212 | &pi); | |
b7ff339d CV |
2213 | if (w32_env) |
2214 | /* Just free the Win32 environment, if it could be created. */ | |
2215 | free (w32_env); | |
2216 | else | |
2217 | { | |
2218 | /* Reset all environment variables to avoid leftover on next run. */ | |
2219 | clear_win32_environment (in_env); | |
2220 | /* Restore normal GDB environment variables. */ | |
2221 | environ = old_env; | |
2222 | cygwin_internal (CW_SYNC_WINENV); | |
2223 | } | |
2224 | ||
d0d0ab16 CV |
2225 | if (tty >= 0) |
2226 | { | |
2227 | close (tty); | |
2228 | dup2 (ostdin, 0); | |
2229 | dup2 (ostdout, 1); | |
2230 | dup2 (ostderr, 2); | |
2231 | close (ostdin); | |
2232 | close (ostdout); | |
2233 | close (ostderr); | |
2234 | } | |
41b4aadc | 2235 | #else |
b3c613f2 | 2236 | toexec = exec_file; |
8f205f9c JB |
2237 | /* Build the command line, a space-separated list of tokens where |
2238 | the first token is the name of the module to be executed. | |
2239 | To avoid ambiguities introduced by spaces in the module name, | |
2240 | we quote it. */ | |
2241 | args_len = strlen (toexec) + 2 /* quotes */ + strlen (allargs) + 2; | |
0ae1c716 | 2242 | args = (char *) alloca (args_len); |
8f205f9c | 2243 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs); |
d0d0ab16 | 2244 | |
d0d0ab16 CV |
2245 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2246 | ||
41b4aadc CF |
2247 | if (!inferior_io_terminal) |
2248 | tty = INVALID_HANDLE_VALUE; | |
2249 | else | |
2250 | { | |
2251 | SECURITY_ATTRIBUTES sa; | |
2252 | sa.nLength = sizeof(sa); | |
2253 | sa.lpSecurityDescriptor = 0; | |
2254 | sa.bInheritHandle = TRUE; | |
2255 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2256 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2257 | if (tty == INVALID_HANDLE_VALUE) | |
2258 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2259 | inferior_io_terminal, (unsigned) GetLastError ()); | |
2260 | else | |
2261 | { | |
2262 | si.hStdInput = tty; | |
2263 | si.hStdOutput = tty; | |
2264 | si.hStdError = tty; | |
2265 | si.dwFlags |= STARTF_USESTDHANDLES; | |
2266 | } | |
2267 | } | |
2becadee | 2268 | |
c93dbcba EZ |
2269 | /* CreateProcess takes the environment list as a null terminated set of |
2270 | strings (i.e. two nulls terminate the list). */ | |
2271 | ||
2272 | /* Get total size for env strings. */ | |
2273 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2274 | envlen += strlen (in_env[i]) + 1; | |
2275 | ||
2276 | envsize = sizeof (in_env[0]) * (i + 1); | |
2277 | env = (char **) alloca (envsize); | |
2278 | memcpy (env, in_env, envsize); | |
2279 | /* Windows programs expect the environment block to be sorted. */ | |
2280 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2281 | ||
0ae1c716 | 2282 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
2283 | |
2284 | /* Copy env strings into new buffer. */ | |
2285 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2286 | { | |
2287 | strcpy (temp, env[i]); | |
2288 | temp += strlen (temp) + 1; | |
2289 | } | |
2290 | ||
2291 | /* Final nil string to terminate new env. */ | |
2292 | *temp = 0; | |
2293 | ||
dc05df57 | 2294 | windows_init_thread_list (); |
d0d0ab16 CV |
2295 | ret = CreateProcessA (0, |
2296 | args, /* command line */ | |
2297 | NULL, /* Security */ | |
2298 | NULL, /* thread */ | |
2299 | TRUE, /* inherit handles */ | |
2300 | flags, /* start flags */ | |
c93dbcba | 2301 | w32env, /* environment */ |
d0d0ab16 CV |
2302 | NULL, /* current directory */ |
2303 | &si, | |
2304 | &pi); | |
41b4aadc CF |
2305 | if (tty != INVALID_HANDLE_VALUE) |
2306 | CloseHandle (tty); | |
10325bc5 | 2307 | #endif |
2becadee | 2308 | |
24e60978 | 2309 | if (!ret) |
d50a0ce2 | 2310 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 2311 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 2312 | |
c1766e7d PM |
2313 | CloseHandle (pi.hThread); |
2314 | CloseHandle (pi.hProcess); | |
2315 | ||
dfe7f3ac CF |
2316 | if (useshell && shell[0] != '\0') |
2317 | saw_create = -1; | |
2318 | else | |
2319 | saw_create = 0; | |
2320 | ||
dc05df57 | 2321 | do_initial_windows_stuff (ops, pi.dwProcessId, 0); |
d3a09475 | 2322 | |
17617f2d | 2323 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
2324 | } |
2325 | ||
2326 | static void | |
dc05df57 | 2327 | windows_mourn_inferior (struct target_ops *ops) |
24e60978 | 2328 | { |
17617f2d | 2329 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 2330 | x86_cleanup_dregs(); |
bf25528d CF |
2331 | if (open_process_used) |
2332 | { | |
2333 | CHECK (CloseHandle (current_process_handle)); | |
2334 | open_process_used = 0; | |
2335 | } | |
c1ee2fb3 | 2336 | inf_child_mourn_inferior (ops); |
24e60978 SC |
2337 | } |
2338 | ||
24e60978 | 2339 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 2340 | ^C on the controlling terminal. */ |
24e60978 | 2341 | |
b607efe7 | 2342 | static void |
bfedc46a | 2343 | windows_interrupt (struct target_ops *self, ptid_t ptid) |
24e60978 | 2344 | { |
1ef980b9 | 2345 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2346 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2347 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2348 | } |
2349 | ||
44f38867 PA |
2350 | /* Helper for windows_xfer_partial that handles memory transfers. |
2351 | Arguments are like target_xfer_partial. */ | |
2352 | ||
9b409511 | 2353 | static enum target_xfer_status |
44f38867 | 2354 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 2355 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 2356 | { |
5732a500 | 2357 | SIZE_T done = 0; |
44f38867 | 2358 | BOOL success; |
9e52adf9 | 2359 | DWORD lasterror = 0; |
44f38867 PA |
2360 | |
2361 | if (writebuf != NULL) | |
24e60978 | 2362 | { |
a2388568 | 2363 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 2364 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2365 | success = WriteProcessMemory (current_process_handle, |
2366 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
2367 | len, &done); | |
9e52adf9 | 2368 | if (!success) |
7126d5c8 | 2369 | lasterror = GetLastError (); |
2b008701 | 2370 | FlushInstructionCache (current_process_handle, |
2c647436 | 2371 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2372 | } |
2373 | else | |
2374 | { | |
a2388568 | 2375 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 2376 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2377 | success = ReadProcessMemory (current_process_handle, |
2378 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
2379 | len, &done); | |
9e52adf9 | 2380 | if (!success) |
7126d5c8 | 2381 | lasterror = GetLastError (); |
24e60978 | 2382 | } |
9b409511 | 2383 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 2384 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 2385 | return TARGET_XFER_OK; |
9e52adf9 | 2386 | else |
9b409511 | 2387 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
2388 | } |
2389 | ||
3ee6f623 | 2390 | static void |
7d85a9c0 | 2391 | windows_kill_inferior (struct target_ops *ops) |
24e60978 | 2392 | { |
3cee93ac CF |
2393 | CHECK (TerminateProcess (current_process_handle, 0)); |
2394 | ||
b5edcb45 ILT |
2395 | for (;;) |
2396 | { | |
17617f2d | 2397 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 2398 | break; |
3cee93ac | 2399 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2400 | break; |
3cee93ac | 2401 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2402 | break; |
2403 | } | |
2404 | ||
581e13c1 | 2405 | target_mourn_inferior (); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
2406 | } |
2407 | ||
24e60978 | 2408 | static void |
de90e03d | 2409 | windows_close (struct target_ops *self) |
24e60978 | 2410 | { |
dc05df57 | 2411 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
dfd4cc63 | 2412 | ptid_get_pid (inferior_ptid))); |
24e60978 | 2413 | } |
1ef980b9 | 2414 | |
581e13c1 | 2415 | /* Convert pid to printable format. */ |
3ee6f623 | 2416 | static char * |
117de6a9 | 2417 | windows_pid_to_str (struct target_ops *ops, ptid_t ptid) |
24e60978 | 2418 | { |
3ee6f623 | 2419 | static char buf[80]; |
3ee6f623 | 2420 | |
2dc38344 PA |
2421 | if (ptid_get_tid (ptid) != 0) |
2422 | { | |
2423 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2424 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2425 | return buf; | |
2426 | } | |
2427 | ||
2428 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2429 | } |
2430 | ||
9b409511 | 2431 | static enum target_xfer_status |
dc05df57 | 2432 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
2433 | enum target_object object, const char *annex, |
2434 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2435 | ULONGEST offset, ULONGEST len, | |
2436 | ULONGEST *xfered_len) | |
3cb8e7f6 | 2437 | { |
de1b3c3d PA |
2438 | struct obstack obstack; |
2439 | const char *buf; | |
2440 | LONGEST len_avail; | |
3cb8e7f6 | 2441 | struct so_list *so; |
3cb8e7f6 | 2442 | |
de1b3c3d | 2443 | if (writebuf) |
2ed4b548 | 2444 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 2445 | |
de1b3c3d PA |
2446 | obstack_init (&obstack); |
2447 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2448 | for (so = solib_start.next; so; so = so->next) | |
581e13c1 MS |
2449 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) |
2450 | (uintptr_t) so->lm_info->load_addr, | |
f5656ead | 2451 | target_gdbarch (), &obstack); |
de1b3c3d | 2452 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2453 | |
0ae1c716 | 2454 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
2455 | len_avail = strlen (buf); |
2456 | if (offset >= len_avail) | |
49dc7f4b PM |
2457 | len= 0; |
2458 | else | |
2459 | { | |
2460 | if (len > len_avail - offset) | |
2461 | len = len_avail - offset; | |
2462 | memcpy (readbuf, buf + offset, len); | |
2463 | } | |
3cb8e7f6 | 2464 | |
de1b3c3d | 2465 | obstack_free (&obstack, NULL); |
9b409511 | 2466 | *xfered_len = (ULONGEST) len; |
0837c976 | 2467 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
2468 | } |
2469 | ||
9b409511 | 2470 | static enum target_xfer_status |
dc05df57 | 2471 | windows_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
2472 | const char *annex, gdb_byte *readbuf, |
2473 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, | |
2474 | ULONGEST *xfered_len) | |
3cb8e7f6 | 2475 | { |
de1b3c3d | 2476 | switch (object) |
3cb8e7f6 | 2477 | { |
de1b3c3d | 2478 | case TARGET_OBJECT_MEMORY: |
9b409511 | 2479 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
2480 | |
2481 | case TARGET_OBJECT_LIBRARIES: | |
dc05df57 | 2482 | return windows_xfer_shared_libraries (ops, object, annex, readbuf, |
9b409511 | 2483 | writebuf, offset, len, xfered_len); |
3929abe9 | 2484 | |
de1b3c3d | 2485 | default: |
e75fdfca TT |
2486 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
2487 | readbuf, writebuf, offset, len, | |
2488 | xfered_len); | |
3929abe9 | 2489 | } |
02c5aecd CF |
2490 | } |
2491 | ||
711e434b PM |
2492 | /* Provide thread local base, i.e. Thread Information Block address. |
2493 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
2494 | ||
2495 | static int | |
bd7ae0f5 TT |
2496 | windows_get_tib_address (struct target_ops *self, |
2497 | ptid_t ptid, CORE_ADDR *addr) | |
711e434b | 2498 | { |
876d1cd7 | 2499 | windows_thread_info *th; |
711e434b PM |
2500 | |
2501 | th = thread_rec (ptid_get_tid (ptid), 0); | |
2502 | if (th == NULL) | |
2503 | return 0; | |
2504 | ||
2505 | if (addr != NULL) | |
2506 | *addr = th->thread_local_base; | |
2507 | ||
2508 | return 1; | |
2509 | } | |
2510 | ||
1e2f1c5c | 2511 | static ptid_t |
1e6b91a4 | 2512 | windows_get_ada_task_ptid (struct target_ops *self, long lwp, long thread) |
1e2f1c5c JB |
2513 | { |
2514 | return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp); | |
2515 | } | |
2516 | ||
51a9c8c5 PA |
2517 | static struct target_ops * |
2518 | windows_target (void) | |
3ee6f623 | 2519 | { |
51a9c8c5 PA |
2520 | struct target_ops *t = inf_child_target (); |
2521 | ||
51a9c8c5 PA |
2522 | t->to_close = windows_close; |
2523 | t->to_attach = windows_attach; | |
2524 | t->to_attach_no_wait = 1; | |
2525 | t->to_detach = windows_detach; | |
2526 | t->to_resume = windows_resume; | |
2527 | t->to_wait = windows_wait; | |
2528 | t->to_fetch_registers = windows_fetch_inferior_registers; | |
2529 | t->to_store_registers = windows_store_inferior_registers; | |
2530 | t->to_xfer_partial = windows_xfer_partial; | |
2531 | t->to_files_info = windows_files_info; | |
2532 | t->to_kill = windows_kill_inferior; | |
2533 | t->to_create_inferior = windows_create_inferior; | |
2534 | t->to_mourn_inferior = windows_mourn_inferior; | |
2535 | t->to_thread_alive = windows_thread_alive; | |
2536 | t->to_pid_to_str = windows_pid_to_str; | |
bfedc46a | 2537 | t->to_interrupt = windows_interrupt; |
51a9c8c5 PA |
2538 | t->to_pid_to_exec_file = windows_pid_to_exec_file; |
2539 | t->to_get_ada_task_ptid = windows_get_ada_task_ptid; | |
2540 | t->to_get_tib_address = windows_get_tib_address; | |
2541 | ||
2542 | return t; | |
c719b714 | 2543 | } |
24e60978 | 2544 | |
d603d4b3 JK |
2545 | /* -Wmissing-prototypes */ |
2546 | extern initialize_file_ftype _initialize_windows_nat; | |
2547 | ||
24e60978 | 2548 | void |
dc05df57 | 2549 | _initialize_windows_nat (void) |
24e60978 | 2550 | { |
51a9c8c5 PA |
2551 | struct target_ops *t; |
2552 | ||
2553 | t = windows_target (); | |
2554 | ||
df7e5265 | 2555 | x86_use_watchpoints (t); |
51a9c8c5 | 2556 | |
df7e5265 GB |
2557 | x86_dr_low.set_control = cygwin_set_dr7; |
2558 | x86_dr_low.set_addr = cygwin_set_dr; | |
2559 | x86_dr_low.get_addr = cygwin_get_dr; | |
2560 | x86_dr_low.get_status = cygwin_get_dr6; | |
2561 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 2562 | |
df7e5265 GB |
2563 | /* x86_dr_low.debug_register_length field is set by |
2564 | calling x86_set_debug_register_length function | |
51a9c8c5 | 2565 | in processor windows specific native file. */ |
fa58ee11 | 2566 | |
51a9c8c5 | 2567 | add_target (t); |
1ef980b9 | 2568 | |
d0d0ab16 CV |
2569 | #ifdef __CYGWIN__ |
2570 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
2571 | #endif | |
2572 | ||
463888ab РИ |
2573 | add_com ("signal-event", class_run, signal_event_command, _("\ |
2574 | Signal a crashed process with event ID, to allow its debugging.\n\ | |
2575 | This command is needed in support of setting up GDB as JIT debugger on \ | |
2576 | MS-Windows. The command should be invoked from the GDB command line using \ | |
2577 | the '-ex' command-line option. The ID of the event that blocks the \ | |
2578 | crashed process will be supplied by the Windows JIT debugging mechanism.")); | |
2579 | ||
10325bc5 | 2580 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2581 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2582 | Set use of shell to start subprocess."), _("\ | |
2583 | Show use of shell to start subprocess."), NULL, | |
2584 | NULL, | |
2585 | NULL, /* FIXME: i18n: */ | |
2586 | &setlist, &showlist); | |
2587 | ||
581e13c1 MS |
2588 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
2589 | &cygwin_exceptions, _("\ | |
09280ddf CF |
2590 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
2591 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2592 | NULL, | |
2593 | NULL, /* FIXME: i18n: */ | |
2594 | &setlist, &showlist); | |
10325bc5 | 2595 | #endif |
09280ddf | 2596 | |
5bf193a2 AC |
2597 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2598 | Set creation of new console when creating child process."), _("\ | |
2599 | Show creation of new console when creating child process."), NULL, | |
2600 | NULL, | |
2601 | NULL, /* FIXME: i18n: */ | |
2602 | &setlist, &showlist); | |
2603 | ||
2604 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2605 | Set creation of new group when creating child process."), _("\ | |
2606 | Show creation of new group when creating child process."), NULL, | |
2607 | NULL, | |
2608 | NULL, /* FIXME: i18n: */ | |
2609 | &setlist, &showlist); | |
2610 | ||
2611 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2612 | Set whether to display execution in child process."), _("\ | |
2613 | Show whether to display execution in child process."), NULL, | |
2614 | NULL, | |
2615 | NULL, /* FIXME: i18n: */ | |
2616 | &setlist, &showlist); | |
2617 | ||
2618 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2619 | Set whether to display kernel events in child process."), _("\ | |
2620 | Show whether to display kernel events in child process."), NULL, | |
2621 | NULL, | |
2622 | NULL, /* FIXME: i18n: */ | |
2623 | &setlist, &showlist); | |
2624 | ||
2625 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2626 | Set whether to display memory accesses in child process."), _("\ | |
2627 | Show whether to display memory accesses in child process."), NULL, | |
2628 | NULL, | |
2629 | NULL, /* FIXME: i18n: */ | |
2630 | &setlist, &showlist); | |
2631 | ||
2632 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2633 | &debug_exceptions, _("\ | |
2634 | Set whether to display kernel exceptions in child process."), _("\ | |
2635 | Show whether to display kernel exceptions in child process."), NULL, | |
2636 | NULL, | |
2637 | NULL, /* FIXME: i18n: */ | |
2638 | &setlist, &showlist); | |
1ef980b9 | 2639 | |
711e434b | 2640 | init_w32_command_list (); |
c1748f97 PM |
2641 | |
2642 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2643 | _("Display selectors infos."), |
c1748f97 | 2644 | &info_w32_cmdlist); |
24e60978 | 2645 | } |
3cee93ac | 2646 | |
fa4ba8da PM |
2647 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2648 | ||
2649 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2650 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 2651 | actually set up when windows_continue is called. */ |
9bb9e8ad | 2652 | static void |
fa4ba8da PM |
2653 | cygwin_set_dr (int i, CORE_ADDR addr) |
2654 | { | |
2655 | if (i < 0 || i > 3) | |
2656 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2657 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 2658 | dr[i] = addr; |
fa4ba8da PM |
2659 | debug_registers_changed = 1; |
2660 | debug_registers_used = 1; | |
2661 | } | |
2662 | ||
2663 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2664 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 2665 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
2666 | static void |
2667 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 2668 | { |
9bb9e8ad | 2669 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
2670 | debug_registers_changed = 1; |
2671 | debug_registers_used = 1; | |
2672 | } | |
2673 | ||
7b50312a PA |
2674 | /* Get the value of debug register I from the inferior. */ |
2675 | ||
2676 | static CORE_ADDR | |
2677 | cygwin_get_dr (int i) | |
2678 | { | |
2679 | return dr[i]; | |
2680 | } | |
2681 | ||
fa4ba8da PM |
2682 | /* Get the value of the DR6 debug status register from the inferior. |
2683 | Here we just return the value stored in dr[6] | |
2684 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 2685 | static unsigned long |
fa4ba8da PM |
2686 | cygwin_get_dr6 (void) |
2687 | { | |
9bb9e8ad | 2688 | return (unsigned long) dr[6]; |
fa4ba8da PM |
2689 | } |
2690 | ||
7b50312a PA |
2691 | /* Get the value of the DR7 debug status register from the inferior. |
2692 | Here we just return the value stored in dr[7] by the last call to | |
2693 | thread_rec for current_event.dwThreadId id. */ | |
2694 | ||
2695 | static unsigned long | |
2696 | cygwin_get_dr7 (void) | |
2697 | { | |
2698 | return (unsigned long) dr[7]; | |
2699 | } | |
2700 | ||
2dc38344 | 2701 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 2702 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 2703 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
3cee93ac | 2704 | static int |
28439f5e | 2705 | windows_thread_alive (struct target_ops *ops, ptid_t ptid) |
3cee93ac | 2706 | { |
2dc38344 PA |
2707 | int tid; |
2708 | ||
2709 | gdb_assert (ptid_get_tid (ptid) != 0); | |
2710 | tid = ptid_get_tid (ptid); | |
39f77062 | 2711 | |
581e13c1 MS |
2712 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 |
2713 | ? FALSE : TRUE; | |
3cee93ac CF |
2714 | } |
2715 | ||
d603d4b3 JK |
2716 | /* -Wmissing-prototypes */ |
2717 | extern initialize_file_ftype _initialize_check_for_gdb_ini; | |
2718 | ||
2a3d5645 CF |
2719 | void |
2720 | _initialize_check_for_gdb_ini (void) | |
2721 | { | |
2722 | char *homedir; | |
2723 | if (inhibit_gdbinit) | |
2724 | return; | |
2725 | ||
2726 | homedir = getenv ("HOME"); | |
2727 | if (homedir) | |
2728 | { | |
2729 | char *p; | |
2730 | char *oldini = (char *) alloca (strlen (homedir) + | |
1270fac6 | 2731 | sizeof ("gdb.ini") + 1); |
2a3d5645 CF |
2732 | strcpy (oldini, homedir); |
2733 | p = strchr (oldini, '\0'); | |
0ba1096a | 2734 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
2735 | *p++ = '/'; |
2736 | strcpy (p, "gdb.ini"); | |
2737 | if (access (oldini, 0) == 0) | |
2738 | { | |
2739 | int len = strlen (oldini); | |
1270fac6 | 2740 | char *newini = (char *) alloca (len + 2); |
08850b56 | 2741 | |
1270fac6 | 2742 | xsnprintf (newini, len + 2, "%.*s.gdbinit", |
08850b56 | 2743 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 2744 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2745 | } |
2746 | } | |
2747 | } | |
33605d39 | 2748 | |
2b008701 | 2749 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 2750 | these functions could not be found. */ |
2b008701 CF |
2751 | static BOOL WINAPI |
2752 | bad_DebugActiveProcessStop (DWORD w) | |
2753 | { | |
2754 | return FALSE; | |
2755 | } | |
2756 | static BOOL WINAPI | |
2757 | bad_DebugBreakProcess (HANDLE w) | |
2758 | { | |
2759 | return FALSE; | |
2760 | } | |
2761 | static BOOL WINAPI | |
2762 | bad_DebugSetProcessKillOnExit (BOOL w) | |
2763 | { | |
2764 | return FALSE; | |
2765 | } | |
2766 | static BOOL WINAPI | |
2767 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
2768 | { | |
2769 | return FALSE; | |
2770 | } | |
b3c613f2 CF |
2771 | |
2772 | #ifdef __USEWIDE | |
2b008701 | 2773 | static DWORD WINAPI |
b3c613f2 | 2774 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
2775 | { |
2776 | return 0; | |
2777 | } | |
d0d0ab16 CV |
2778 | #else |
2779 | static DWORD WINAPI | |
b3c613f2 | 2780 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
2781 | { |
2782 | return 0; | |
2783 | } | |
2784 | #endif | |
b3c613f2 | 2785 | |
2b008701 CF |
2786 | static BOOL WINAPI |
2787 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
2788 | { | |
2789 | return FALSE; | |
2790 | } | |
2791 | ||
418c6cb3 CF |
2792 | static BOOL WINAPI |
2793 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
2794 | { | |
2795 | return FALSE; | |
2796 | } | |
2797 | ||
cd44747c PM |
2798 | static BOOL WINAPI |
2799 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
2800 | { | |
2801 | f->nFont = 0; | |
2802 | return 1; | |
2803 | } | |
2804 | static COORD WINAPI | |
2805 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
2806 | { | |
2807 | COORD size; | |
2808 | size.X = 8; | |
2809 | size.Y = 12; | |
2810 | return size; | |
2811 | } | |
2812 | ||
d603d4b3 JK |
2813 | /* -Wmissing-prototypes */ |
2814 | extern initialize_file_ftype _initialize_loadable; | |
2815 | ||
2b008701 | 2816 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 2817 | of Windows. */ |
d603d4b3 | 2818 | |
33605d39 | 2819 | void |
2b008701 | 2820 | _initialize_loadable (void) |
33605d39 | 2821 | { |
2b008701 CF |
2822 | HMODULE hm = NULL; |
2823 | ||
43499ea3 PA |
2824 | #define GPA(m, func) \ |
2825 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
2826 | ||
2b008701 CF |
2827 | hm = LoadLibrary ("kernel32.dll"); |
2828 | if (hm) | |
33605d39 | 2829 | { |
43499ea3 PA |
2830 | GPA (hm, DebugActiveProcessStop); |
2831 | GPA (hm, DebugBreakProcess); | |
2832 | GPA (hm, DebugSetProcessKillOnExit); | |
2833 | GPA (hm, GetConsoleFontSize); | |
2834 | GPA (hm, DebugActiveProcessStop); | |
2835 | GPA (hm, GetCurrentConsoleFont); | |
2b008701 | 2836 | } |
33605d39 | 2837 | |
2b008701 | 2838 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 2839 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
2840 | if (!DebugBreakProcess) |
2841 | DebugBreakProcess = bad_DebugBreakProcess; | |
2842 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 2843 | { |
b3c613f2 CF |
2844 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
2845 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 2846 | } |
cd44747c PM |
2847 | if (!GetConsoleFontSize) |
2848 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
2849 | if (!GetCurrentConsoleFont) | |
2850 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 2851 | |
2b008701 | 2852 | /* Load optional functions used for retrieving filename information |
581e13c1 | 2853 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
2854 | hm = LoadLibrary ("psapi.dll"); |
2855 | if (hm) | |
2856 | { | |
43499ea3 PA |
2857 | GPA (hm, EnumProcessModules); |
2858 | GPA (hm, GetModuleInformation); | |
aec47d1d JB |
2859 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
2860 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
2861 | } |
2862 | ||
b3c613f2 | 2863 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
2864 | { |
2865 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 2866 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
2867 | EnumProcessModules = bad_EnumProcessModules; |
2868 | GetModuleInformation = bad_GetModuleInformation; | |
2869 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
2870 | /* This will probably fail on Windows 9x/Me. Let the user know |
2871 | that we're missing some functionality. */ | |
2872 | warning(_("\ | |
2873 | cannot automatically find executable file or library to read symbols.\n\ | |
2874 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
2875 | } |
2876 | ||
2877 | hm = LoadLibrary ("advapi32.dll"); | |
2878 | if (hm) | |
2879 | { | |
43499ea3 PA |
2880 | GPA (hm, OpenProcessToken); |
2881 | GPA (hm, LookupPrivilegeValueA); | |
2882 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 2883 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
2884 | else is needed. */ |
2885 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
2886 | || !AdjustTokenPrivileges) | |
b3c613f2 | 2887 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 2888 | } |
43499ea3 PA |
2889 | |
2890 | #undef GPA | |
33605d39 | 2891 | } |