Commit | Line | Data |
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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
8acc9f48 | 3 | Copyright (C) 1995-2013 Free Software Foundation, Inc. |
0a65a603 | 4 | |
e6433c28 | 5 | Contributed by Cygnus Solutions, A Red Hat Company. |
e88c49c3 | 6 | |
24e60978 SC |
7 | This file is part of GDB. |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
24e60978 SC |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
a9762ec7 | 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
24e60978 SC |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
24e60978 | 21 | |
dfe7f3ac | 22 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
24e60978 SC |
23 | |
24 | #include "defs.h" | |
25 | #include "frame.h" /* required by inferior.h */ | |
26 | #include "inferior.h" | |
27 | #include "target.h" | |
60250e8b | 28 | #include "exceptions.h" |
24e60978 SC |
29 | #include "gdbcore.h" |
30 | #include "command.h" | |
fa58ee11 | 31 | #include "completer.h" |
4e052eda | 32 | #include "regcache.h" |
2a3d5645 | 33 | #include "top.h" |
403d9909 CF |
34 | #include <signal.h> |
35 | #include <sys/types.h> | |
36 | #include <fcntl.h> | |
37 | #include <stdlib.h> | |
38 | #include <windows.h> | |
39 | #include <imagehlp.h> | |
2b008701 | 40 | #include <psapi.h> |
10325bc5 | 41 | #ifdef __CYGWIN__ |
b7ff339d | 42 | #include <wchar.h> |
403d9909 | 43 | #include <sys/cygwin.h> |
b7ff339d | 44 | #include <cygwin/version.h> |
10325bc5 | 45 | #endif |
a244bdca | 46 | #include <signal.h> |
cad9cd60 | 47 | |
24e60978 | 48 | #include "buildsym.h" |
0ba1096a | 49 | #include "filenames.h" |
1ef980b9 SC |
50 | #include "symfile.h" |
51 | #include "objfiles.h" | |
92107356 | 52 | #include "gdb_bfd.h" |
de1b3c3d | 53 | #include "gdb_obstack.h" |
0e9f083f | 54 | #include <string.h> |
fdfa3315 | 55 | #include "gdbthread.h" |
24e60978 | 56 | #include "gdbcmd.h" |
1e37c281 | 57 | #include <unistd.h> |
4646aa9d | 58 | #include "exec.h" |
3ee6f623 | 59 | #include "solist.h" |
3cb8e7f6 | 60 | #include "solib.h" |
de1b3c3d | 61 | #include "xml-support.h" |
24e60978 | 62 | |
6c7de422 MK |
63 | #include "i386-tdep.h" |
64 | #include "i387-tdep.h" | |
65 | ||
31b060a2 CF |
66 | #include "windows-tdep.h" |
67 | #include "windows-nat.h" | |
9bb9e8ad | 68 | #include "i386-nat.h" |
ecc13e53 | 69 | #include "complaints.h" |
de1b3c3d | 70 | |
418c6cb3 | 71 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
72 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
73 | #define DebugBreakProcess dyn_DebugBreakProcess | |
74 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
75 | #define EnumProcessModules dyn_EnumProcessModules | |
2b008701 | 76 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
77 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
78 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
79 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
80 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
2b008701 | 81 | |
418c6cb3 CF |
82 | static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, |
83 | DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
2b008701 CF |
84 | static BOOL WINAPI (*DebugActiveProcessStop) (DWORD); |
85 | static BOOL WINAPI (*DebugBreakProcess) (HANDLE); | |
86 | static BOOL WINAPI (*DebugSetProcessKillOnExit) (BOOL); | |
87 | static BOOL WINAPI (*EnumProcessModules) (HANDLE, HMODULE *, DWORD, | |
88 | LPDWORD); | |
2b008701 CF |
89 | static BOOL WINAPI (*GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, |
90 | DWORD); | |
418c6cb3 CF |
91 | static BOOL WINAPI (*LookupPrivilegeValueA)(LPCSTR, LPCSTR, PLUID); |
92 | static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE); | |
581e13c1 MS |
93 | static BOOL WINAPI (*GetCurrentConsoleFont) (HANDLE, BOOL, |
94 | CONSOLE_FONT_INFO *); | |
cd44747c | 95 | static COORD WINAPI (*GetConsoleFontSize) (HANDLE, DWORD); |
2b008701 | 96 | |
dc05df57 | 97 | static struct target_ops windows_ops; |
3ee6f623 | 98 | |
b3c613f2 CF |
99 | #undef STARTUPINFO |
100 | #undef CreateProcess | |
101 | #undef GetModuleFileNameEx | |
102 | ||
103 | #ifndef __CYGWIN__ | |
104 | # define __PMAX (MAX_PATH + 1) | |
105 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, LPSTR, DWORD); | |
106 | # define STARTUPINFO STARTUPINFOA | |
107 | # define CreateProcess CreateProcessA | |
108 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
109 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
110 | #else | |
111 | # define __PMAX PATH_MAX | |
581e13c1 | 112 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
113 | static CORE_ADDR cygwin_load_start; |
114 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
115 | # define __USEWIDE |
116 | typedef wchar_t cygwin_buf_t; | |
581e13c1 MS |
117 | static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, |
118 | LPWSTR, DWORD); | |
b3c613f2 CF |
119 | # define STARTUPINFO STARTUPINFOW |
120 | # define CreateProcess CreateProcessW | |
121 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
122 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 123 | #endif |
a244bdca | 124 | |
581e13c1 MS |
125 | static int have_saved_context; /* True if we've saved context from a |
126 | cygwin signal. */ | |
127 | static CONTEXT saved_context; /* Containes the saved context from a | |
128 | cygwin signal. */ | |
a244bdca | 129 | |
0714f9bf SS |
130 | /* If we're not using the old Cygwin header file set, define the |
131 | following which never should have been in the generic Win32 API | |
581e13c1 | 132 | headers in the first place since they were our own invention... */ |
0714f9bf | 133 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 134 | enum |
8e860359 CF |
135 | { |
136 | FLAG_TRACE_BIT = 0x100, | |
137 | CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
138 | }; | |
0714f9bf SS |
139 | #endif |
140 | ||
5851ab76 JB |
141 | #ifndef CONTEXT_EXTENDED_REGISTERS |
142 | /* This macro is only defined on ia32. It only makes sense on this target, | |
143 | so define it as zero if not already defined. */ | |
144 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
145 | #endif | |
146 | ||
fa4ba8da PM |
147 | #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \ |
148 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 149 | |
41b4aadc | 150 | static uintptr_t dr[8]; |
87a45c96 CF |
151 | static int debug_registers_changed; |
152 | static int debug_registers_used; | |
16d905e2 CF |
153 | |
154 | static int windows_initialization_done; | |
6537bb24 | 155 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 156 | |
3cee93ac | 157 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 158 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
159 | #ifndef _CYGWIN_SIGNAL_STRING |
160 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
161 | #endif | |
3cee93ac | 162 | |
29fe111d | 163 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 164 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
165 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
166 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
167 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 168 | |
dc05df57 | 169 | static void windows_stop (ptid_t); |
02529b48 | 170 | static int windows_thread_alive (struct target_ops *, ptid_t); |
7d85a9c0 | 171 | static void windows_kill_inferior (struct target_ops *); |
3cee93ac | 172 | |
9bb9e8ad PM |
173 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
174 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 175 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 176 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 177 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 178 | |
a493e3e2 | 179 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
581e13c1 | 180 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 181 | |
3cee93ac | 182 | /* Thread information structure used to track information that is |
6537bb24 | 183 | not available in gdb's thread structure. */ |
3cee93ac | 184 | typedef struct thread_info_struct |
3a4b77d8 JM |
185 | { |
186 | struct thread_info_struct *next; | |
187 | DWORD id; | |
188 | HANDLE h; | |
711e434b | 189 | CORE_ADDR thread_local_base; |
3a4b77d8 | 190 | char *name; |
6537bb24 | 191 | int suspended; |
3ade5333 | 192 | int reload_context; |
3a4b77d8 | 193 | CONTEXT context; |
1e37c281 | 194 | STACKFRAME sf; |
8e860359 CF |
195 | } |
196 | thread_info; | |
1e37c281 | 197 | |
29fe111d | 198 | static thread_info thread_head; |
24e60978 | 199 | |
581e13c1 | 200 | /* The process and thread handles for the above context. */ |
24e60978 | 201 | |
3cee93ac CF |
202 | static DEBUG_EVENT current_event; /* The current debug event from |
203 | WaitForDebugEvent */ | |
204 | static HANDLE current_process_handle; /* Currently executing process */ | |
205 | static thread_info *current_thread; /* Info on currently selected thread */ | |
349b409f | 206 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 | 207 | |
581e13c1 | 208 | /* Counts of things. */ |
24e60978 SC |
209 | static int exception_count = 0; |
210 | static int event_count = 0; | |
dfe7f3ac | 211 | static int saw_create; |
bf25528d | 212 | static int open_process_used = 0; |
24e60978 | 213 | |
581e13c1 | 214 | /* User options. */ |
24e60978 | 215 | static int new_console = 0; |
10325bc5 | 216 | #ifdef __CYGWIN__ |
09280ddf | 217 | static int cygwin_exceptions = 0; |
10325bc5 | 218 | #endif |
1e37c281 | 219 | static int new_group = 1; |
dfe7f3ac CF |
220 | static int debug_exec = 0; /* show execution */ |
221 | static int debug_events = 0; /* show events from kernel */ | |
222 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 223 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
224 | static int useshell = 0; /* use shell for subprocesses */ |
225 | ||
7e63b4e4 | 226 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 227 | in the windows exception context vector. |
24e60978 | 228 | |
3cee93ac | 229 | It also contains the bit mask needed to load the register in question. |
24e60978 | 230 | |
7e63b4e4 JB |
231 | The contents of this table can only be computed by the units |
232 | that provide CPU-specific support for Windows native debugging. | |
233 | These units should set the table by calling | |
dc05df57 | 234 | windows_set_context_register_offsets. |
7e63b4e4 | 235 | |
24e60978 SC |
236 | One day we could read a reg, we could inspect the context we |
237 | already have loaded, if it doesn't have the bit set that we need, | |
238 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 239 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
240 | write a register, first we have to ensure that the context contains |
241 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 242 | out bit. */ |
24e60978 | 243 | |
7e63b4e4 | 244 | static const int *mappings; |
d3a09475 | 245 | |
d40dc7a8 JB |
246 | /* The function to use in order to determine whether a register is |
247 | a segment register or not. */ | |
248 | static segment_register_p_ftype *segment_register_p; | |
249 | ||
24e60978 | 250 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 251 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
252 | |
253 | struct xlate_exception | |
254 | { | |
255 | int them; | |
2ea28649 | 256 | enum gdb_signal us; |
24e60978 SC |
257 | }; |
258 | ||
24e60978 SC |
259 | static const struct xlate_exception |
260 | xlate[] = | |
261 | { | |
a493e3e2 PA |
262 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
263 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
264 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
265 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
266 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
267 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE}, | |
24e60978 SC |
268 | {-1, -1}}; |
269 | ||
7e63b4e4 JB |
270 | /* Set the MAPPINGS static global to OFFSETS. |
271 | See the description of MAPPINGS for more details. */ | |
272 | ||
273 | void | |
dc05df57 | 274 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
275 | { |
276 | mappings = offsets; | |
277 | } | |
278 | ||
d40dc7a8 JB |
279 | /* See windows-nat.h. */ |
280 | ||
281 | void | |
282 | windows_set_segment_register_p (segment_register_p_ftype *fun) | |
283 | { | |
284 | segment_register_p = fun; | |
285 | } | |
286 | ||
fa4ba8da PM |
287 | static void |
288 | check (BOOL ok, const char *file, int line) | |
289 | { | |
290 | if (!ok) | |
d50a0ce2 CV |
291 | printf_filtered ("error return %s:%d was %u\n", file, line, |
292 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
293 | } |
294 | ||
6537bb24 PA |
295 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
296 | then also retrieve the context for this thread. If GET_CONTEXT is | |
297 | negative, then don't suspend the thread. */ | |
3cee93ac CF |
298 | static thread_info * |
299 | thread_rec (DWORD id, int get_context) | |
24e60978 | 300 | { |
3cee93ac CF |
301 | thread_info *th; |
302 | ||
3a4b77d8 | 303 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
304 | if (th->id == id) |
305 | { | |
6537bb24 | 306 | if (!th->suspended && get_context) |
3cee93ac | 307 | { |
8a892701 | 308 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
309 | { |
310 | if (SuspendThread (th->h) == (DWORD) -1) | |
311 | { | |
312 | DWORD err = GetLastError (); | |
22128028 | 313 | |
80e88e1a | 314 | warning (_("SuspendThread (tid=0x%x) failed." |
2ed3e009 | 315 | " (winerr %u)"), |
80e88e1a | 316 | (unsigned) id, (unsigned) err); |
6537bb24 PA |
317 | return NULL; |
318 | } | |
319 | th->suspended = 1; | |
320 | } | |
3cee93ac | 321 | else if (get_context < 0) |
6537bb24 | 322 | th->suspended = -1; |
3ade5333 | 323 | th->reload_context = 1; |
3cee93ac CF |
324 | } |
325 | return th; | |
326 | } | |
327 | ||
328 | return NULL; | |
329 | } | |
330 | ||
2dc38344 | 331 | /* Add a thread to the thread list. */ |
3cee93ac | 332 | static thread_info * |
711e434b | 333 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb) |
3cee93ac CF |
334 | { |
335 | thread_info *th; | |
2dc38344 PA |
336 | DWORD id; |
337 | ||
338 | gdb_assert (ptid_get_tid (ptid) != 0); | |
339 | ||
340 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
341 | |
342 | if ((th = thread_rec (id, FALSE))) | |
343 | return th; | |
344 | ||
3929abe9 | 345 | th = XZALLOC (thread_info); |
3cee93ac CF |
346 | th->id = id; |
347 | th->h = h; | |
711e434b | 348 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
349 | th->next = thread_head.next; |
350 | thread_head.next = th; | |
2dc38344 PA |
351 | add_thread (ptid); |
352 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
353 | if (debug_registers_used) |
354 | { | |
355 | /* Only change the value of the debug registers. */ | |
356 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
357 | CHECK (GetThreadContext (th->h, &th->context)); | |
358 | th->context.Dr0 = dr[0]; | |
359 | th->context.Dr1 = dr[1]; | |
360 | th->context.Dr2 = dr[2]; | |
361 | th->context.Dr3 = dr[3]; | |
6537bb24 | 362 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
363 | th->context.Dr7 = dr[7]; |
364 | CHECK (SetThreadContext (th->h, &th->context)); | |
365 | th->context.ContextFlags = 0; | |
366 | } | |
3cee93ac | 367 | return th; |
24e60978 SC |
368 | } |
369 | ||
3cee93ac | 370 | /* Clear out any old thread list and reintialize it to a |
581e13c1 | 371 | pristine state. */ |
24e60978 | 372 | static void |
dc05df57 | 373 | windows_init_thread_list (void) |
24e60978 | 374 | { |
3cee93ac CF |
375 | thread_info *th = &thread_head; |
376 | ||
dc05df57 | 377 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
378 | init_thread_list (); |
379 | while (th->next != NULL) | |
24e60978 | 380 | { |
3cee93ac CF |
381 | thread_info *here = th->next; |
382 | th->next = here->next; | |
b8c9b27d | 383 | xfree (here); |
24e60978 | 384 | } |
059198c1 | 385 | thread_head.next = NULL; |
3cee93ac CF |
386 | } |
387 | ||
581e13c1 | 388 | /* Delete a thread from the list of threads. */ |
3cee93ac | 389 | static void |
e0ea48a0 | 390 | windows_delete_thread (ptid_t ptid, DWORD exit_code) |
3cee93ac CF |
391 | { |
392 | thread_info *th; | |
2dc38344 PA |
393 | DWORD id; |
394 | ||
395 | gdb_assert (ptid_get_tid (ptid) != 0); | |
396 | ||
397 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
398 | |
399 | if (info_verbose) | |
2dc38344 | 400 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
e0ea48a0 EZ |
401 | else if (print_thread_events && id != main_thread_id) |
402 | printf_unfiltered (_("[%s exited with code %u]\n"), | |
564eac42 | 403 | target_pid_to_str (ptid), (unsigned) exit_code); |
2dc38344 | 404 | delete_thread (ptid); |
3cee93ac CF |
405 | |
406 | for (th = &thread_head; | |
407 | th->next != NULL && th->next->id != id; | |
408 | th = th->next) | |
409 | continue; | |
410 | ||
411 | if (th->next != NULL) | |
24e60978 | 412 | { |
3cee93ac CF |
413 | thread_info *here = th->next; |
414 | th->next = here->next; | |
b8c9b27d | 415 | xfree (here); |
24e60978 SC |
416 | } |
417 | } | |
418 | ||
3cee93ac | 419 | static void |
dc05df57 | 420 | do_windows_fetch_inferior_registers (struct regcache *regcache, int r) |
24e60978 | 421 | { |
1e37c281 | 422 | char *context_offset = ((char *) ¤t_thread->context) + mappings[r]; |
20a6ec49 MD |
423 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
424 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 425 | long l; |
6c7de422 | 426 | |
3ade5333 | 427 | if (!current_thread) |
d6dc8049 | 428 | return; /* Windows sometimes uses a non-existent thread id in its |
581e13c1 | 429 | events. */ |
3ade5333 CF |
430 | |
431 | if (current_thread->reload_context) | |
432 | { | |
cb832706 | 433 | #ifdef __COPY_CONTEXT_SIZE |
a244bdca CF |
434 | if (have_saved_context) |
435 | { | |
581e13c1 MS |
436 | /* Lie about where the program actually is stopped since |
437 | cygwin has informed us that we should consider the signal | |
438 | to have occurred at another location which is stored in | |
439 | "saved_context. */ | |
440 | memcpy (¤t_thread->context, &saved_context, | |
441 | __COPY_CONTEXT_SIZE); | |
a244bdca CF |
442 | have_saved_context = 0; |
443 | } | |
444 | else | |
cb832706 | 445 | #endif |
a244bdca CF |
446 | { |
447 | thread_info *th = current_thread; | |
448 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
449 | GetThreadContext (th->h, &th->context); | |
2b008701 | 450 | /* Copy dr values from that thread. |
581e13c1 MS |
451 | But only if there were not modified since last stop. |
452 | PR gdb/2388 */ | |
88616312 PM |
453 | if (!debug_registers_changed) |
454 | { | |
455 | dr[0] = th->context.Dr0; | |
456 | dr[1] = th->context.Dr1; | |
457 | dr[2] = th->context.Dr2; | |
458 | dr[3] = th->context.Dr3; | |
459 | dr[6] = th->context.Dr6; | |
460 | dr[7] = th->context.Dr7; | |
461 | } | |
a244bdca | 462 | } |
3ade5333 CF |
463 | current_thread->reload_context = 0; |
464 | } | |
465 | ||
20a6ec49 | 466 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 467 | { |
8e860359 | 468 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 469 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 470 | } |
20a6ec49 | 471 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 472 | { |
8e860359 | 473 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 474 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 475 | } |
d40dc7a8 JB |
476 | else if (segment_register_p (r)) |
477 | { | |
478 | /* GDB treats segment registers as 32bit registers, but they are | |
479 | in fact only 16 bits long. Make sure we do not read extra | |
480 | bits from our source buffer. */ | |
481 | l = *((long *) context_offset) & 0xffff; | |
482 | regcache_raw_supply (regcache, r, (char *) &l); | |
483 | } | |
1e37c281 | 484 | else if (r >= 0) |
56be3814 | 485 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 486 | else |
24e60978 | 487 | { |
20a6ec49 | 488 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
dc05df57 | 489 | do_windows_fetch_inferior_registers (regcache, r); |
24e60978 | 490 | } |
3cee93ac CF |
491 | } |
492 | ||
493 | static void | |
28439f5e PA |
494 | windows_fetch_inferior_registers (struct target_ops *ops, |
495 | struct regcache *regcache, int r) | |
3cee93ac | 496 | { |
2dc38344 | 497 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 498 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 499 | thread id in its events. */ |
3ade5333 | 500 | if (current_thread) |
dc05df57 | 501 | do_windows_fetch_inferior_registers (regcache, r); |
3cee93ac CF |
502 | } |
503 | ||
504 | static void | |
dc05df57 | 505 | do_windows_store_inferior_registers (const struct regcache *regcache, int r) |
3cee93ac | 506 | { |
3ade5333 | 507 | if (!current_thread) |
581e13c1 | 508 | /* Windows sometimes uses a non-existent thread id in its events. */; |
3ade5333 | 509 | else if (r >= 0) |
56be3814 | 510 | regcache_raw_collect (regcache, r, |
822c9732 | 511 | ((char *) ¤t_thread->context) + mappings[r]); |
24e60978 SC |
512 | else |
513 | { | |
40a6adc1 | 514 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
dc05df57 | 515 | do_windows_store_inferior_registers (regcache, r); |
24e60978 SC |
516 | } |
517 | } | |
518 | ||
581e13c1 | 519 | /* Store a new register value into the current thread context. */ |
3cee93ac | 520 | static void |
28439f5e PA |
521 | windows_store_inferior_registers (struct target_ops *ops, |
522 | struct regcache *regcache, int r) | |
3cee93ac | 523 | { |
2dc38344 | 524 | current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE); |
d6dc8049 | 525 | /* Check if current_thread exists. Windows sometimes uses a non-existent |
581e13c1 | 526 | thread id in its events. */ |
3ade5333 | 527 | if (current_thread) |
dc05df57 | 528 | do_windows_store_inferior_registers (regcache, r); |
3cee93ac | 529 | } |
24e60978 | 530 | |
7a9dd1b2 | 531 | /* Get the name of a given module at given base address. If base_address |
33605d39 CF |
532 | is zero return the first loaded module (which is always the name of the |
533 | executable). */ | |
3ee6f623 | 534 | static int |
d3653bf6 | 535 | get_module_name (LPVOID base_address, char *dll_name_ret) |
1e37c281 JM |
536 | { |
537 | DWORD len; | |
538 | MODULEINFO mi; | |
539 | int i; | |
8e860359 | 540 | HMODULE dh_buf[1]; |
581e13c1 MS |
541 | HMODULE *DllHandle = dh_buf; /* Set to temporary storage for |
542 | initial query. */ | |
1e37c281 | 543 | DWORD cbNeeded; |
33605d39 | 544 | #ifdef __CYGWIN__ |
b3c613f2 CF |
545 | cygwin_buf_t pathbuf[__PMAX]; /* Temporary storage prior to converting to |
546 | posix form. __PMAX is always enough | |
d0d0ab16 | 547 | as long as SO_NAME_MAX_PATH_SIZE is defined |
581e13c1 | 548 | as 512. */ |
33605d39 | 549 | #endif |
1e37c281 | 550 | |
1e37c281 | 551 | cbNeeded = 0; |
581e13c1 MS |
552 | /* Find size of buffer needed to handle list of modules loaded in |
553 | inferior. */ | |
2b008701 CF |
554 | if (!EnumProcessModules (current_process_handle, DllHandle, |
555 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1e37c281 JM |
556 | goto failed; |
557 | ||
581e13c1 | 558 | /* Allocate correct amount of space for module list. */ |
8e860359 | 559 | DllHandle = (HMODULE *) alloca (cbNeeded); |
1e37c281 JM |
560 | if (!DllHandle) |
561 | goto failed; | |
562 | ||
581e13c1 | 563 | /* Get the list of modules. */ |
2b008701 | 564 | if (!EnumProcessModules (current_process_handle, DllHandle, cbNeeded, |
33605d39 | 565 | &cbNeeded)) |
1e37c281 JM |
566 | goto failed; |
567 | ||
29fe111d | 568 | for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++) |
1e37c281 | 569 | { |
581e13c1 | 570 | /* Get information on this module. */ |
2b008701 CF |
571 | if (!GetModuleInformation (current_process_handle, DllHandle[i], |
572 | &mi, sizeof (mi))) | |
8a3fe4f8 | 573 | error (_("Can't get module info")); |
1e37c281 | 574 | |
d3653bf6 | 575 | if (!base_address || mi.lpBaseOfDll == base_address) |
33605d39 | 576 | { |
581e13c1 | 577 | /* Try to find the name of the given module. */ |
d0d0ab16 | 578 | #ifdef __CYGWIN__ |
581e13c1 | 579 | /* Cygwin prefers that the path be in /x/y/z format. */ |
b3c613f2 CF |
580 | len = GetModuleFileNameEx (current_process_handle, |
581 | DllHandle[i], pathbuf, __PMAX); | |
d0d0ab16 | 582 | if (len == 0) |
d50a0ce2 CV |
583 | error (_("Error getting dll name: %u."), |
584 | (unsigned) GetLastError ()); | |
d0d0ab16 | 585 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, dll_name_ret, |
b3c613f2 | 586 | __PMAX) < 0) |
d0d0ab16 CV |
587 | error (_("Error converting dll name to POSIX: %d."), errno); |
588 | #else | |
b3c613f2 CF |
589 | len = GetModuleFileNameEx (current_process_handle, |
590 | DllHandle[i], dll_name_ret, __PMAX); | |
33605d39 | 591 | if (len == 0) |
581e13c1 MS |
592 | error (_("Error getting dll name: %u."), |
593 | (unsigned) GetLastError ()); | |
33605d39 CF |
594 | #endif |
595 | return 1; /* success */ | |
596 | } | |
1e37c281 JM |
597 | } |
598 | ||
599 | failed: | |
600 | dll_name_ret[0] = '\0'; | |
33605d39 | 601 | return 0; /* failure */ |
1e37c281 JM |
602 | } |
603 | ||
450005e7 | 604 | /* Encapsulate the information required in a call to |
581e13c1 | 605 | symbol_file_add_args. */ |
8a892701 CF |
606 | struct safe_symbol_file_add_args |
607 | { | |
608 | char *name; | |
609 | int from_tty; | |
610 | struct section_addr_info *addrs; | |
611 | int mainline; | |
612 | int flags; | |
7c5c87c0 | 613 | struct ui_file *err, *out; |
8a892701 CF |
614 | struct objfile *ret; |
615 | }; | |
616 | ||
581e13c1 | 617 | /* Maintain a linked list of "so" information. */ |
3ee6f623 | 618 | struct lm_info |
02e423b9 | 619 | { |
d3653bf6 | 620 | LPVOID load_addr; |
3ee6f623 CF |
621 | }; |
622 | ||
623 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 624 | |
450005e7 | 625 | /* Call symbol_file_add with stderr redirected. We don't care if there |
581e13c1 | 626 | are errors. */ |
8a892701 CF |
627 | static int |
628 | safe_symbol_file_add_stub (void *argv) | |
629 | { | |
3ee6f623 | 630 | #define p ((struct safe_symbol_file_add_args *) argv) |
7eedccfa PP |
631 | const int add_flags = ((p->from_tty ? SYMFILE_VERBOSE : 0) |
632 | | (p->mainline ? SYMFILE_MAINLINE : 0)); | |
633 | p->ret = symbol_file_add (p->name, add_flags, p->addrs, p->flags); | |
8a892701 CF |
634 | return !!p->ret; |
635 | #undef p | |
636 | } | |
637 | ||
581e13c1 | 638 | /* Restore gdb's stderr after calling symbol_file_add. */ |
8a892701 | 639 | static void |
7c5c87c0 | 640 | safe_symbol_file_add_cleanup (void *p) |
8a892701 | 641 | { |
8e860359 | 642 | #define sp ((struct safe_symbol_file_add_args *)p) |
450005e7 | 643 | gdb_flush (gdb_stderr); |
7c5c87c0 | 644 | gdb_flush (gdb_stdout); |
d3ff4a77 | 645 | ui_file_delete (gdb_stderr); |
7c5c87c0 | 646 | ui_file_delete (gdb_stdout); |
d3ff4a77 | 647 | gdb_stderr = sp->err; |
9d3789f7 | 648 | gdb_stdout = sp->out; |
8e860359 | 649 | #undef sp |
8a892701 CF |
650 | } |
651 | ||
581e13c1 | 652 | /* symbol_file_add wrapper that prevents errors from being displayed. */ |
8a892701 CF |
653 | static struct objfile * |
654 | safe_symbol_file_add (char *name, int from_tty, | |
655 | struct section_addr_info *addrs, | |
656 | int mainline, int flags) | |
8a892701 CF |
657 | { |
658 | struct safe_symbol_file_add_args p; | |
659 | struct cleanup *cleanup; | |
660 | ||
7c5c87c0 | 661 | cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p); |
8a892701 | 662 | |
7c5c87c0 CF |
663 | p.err = gdb_stderr; |
664 | p.out = gdb_stdout; | |
450005e7 | 665 | gdb_flush (gdb_stderr); |
7c5c87c0 | 666 | gdb_flush (gdb_stdout); |
d3ff4a77 | 667 | gdb_stderr = ui_file_new (); |
7c5c87c0 | 668 | gdb_stdout = ui_file_new (); |
8a892701 CF |
669 | p.name = name; |
670 | p.from_tty = from_tty; | |
671 | p.addrs = addrs; | |
672 | p.mainline = mainline; | |
673 | p.flags = flags; | |
674 | catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR); | |
675 | ||
676 | do_cleanups (cleanup); | |
677 | return p.ret; | |
678 | } | |
679 | ||
de1b3c3d | 680 | static struct so_list * |
dc05df57 | 681 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 682 | { |
3ee6f623 | 683 | struct so_list *so; |
d0d0ab16 CV |
684 | char *p; |
685 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
686 | char buf[__PMAX]; |
687 | char cwd[__PMAX]; | |
3f8ad85b CF |
688 | WIN32_FIND_DATA w32_fd; |
689 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 690 | |
6badb179 CF |
691 | if (h == INVALID_HANDLE_VALUE) |
692 | strcpy (buf, name); | |
693 | else | |
3f8ad85b | 694 | { |
c914e0cc CF |
695 | FindClose (h); |
696 | strcpy (buf, name); | |
697 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
698 | { | |
699 | p = strrchr (buf, '\\'); | |
700 | if (p) | |
701 | p[1] = '\0'; | |
702 | SetCurrentDirectory (buf); | |
703 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
704 | SetCurrentDirectory (cwd); | |
705 | } | |
3f8ad85b | 706 | } |
3ee6f623 CF |
707 | if (strcasecmp (buf, "ntdll.dll") == 0) |
708 | { | |
709 | GetSystemDirectory (buf, sizeof (buf)); | |
710 | strcat (buf, "\\ntdll.dll"); | |
711 | } | |
d0d0ab16 | 712 | #else |
b3c613f2 | 713 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 714 | |
b3c613f2 | 715 | buf[0] = 0; |
d0d0ab16 CV |
716 | if (access (name, F_OK) != 0) |
717 | { | |
718 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 719 | #ifdef __USEWIDE |
d0d0ab16 CV |
720 | { |
721 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
722 | wcscat (buf, L"\\ntdll.dll"); | |
723 | } | |
b3c613f2 CF |
724 | #else |
725 | { | |
726 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
727 | strcat (buf, "\\ntdll.dll"); | |
728 | } | |
729 | #endif | |
d0d0ab16 CV |
730 | } |
731 | #endif | |
3929abe9 | 732 | so = XZALLOC (struct so_list); |
3ee6f623 CF |
733 | so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info)); |
734 | so->lm_info->load_addr = load_addr; | |
de1b3c3d | 735 | strcpy (so->so_original_name, name); |
10325bc5 PA |
736 | #ifndef __CYGWIN__ |
737 | strcpy (so->so_name, buf); | |
738 | #else | |
d0d0ab16 CV |
739 | if (buf[0]) |
740 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
741 | SO_NAME_MAX_PATH_SIZE); | |
742 | else | |
743 | { | |
60c5c021 | 744 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
745 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
746 | { | |
747 | strcpy (so->so_name, rname); | |
748 | free (rname); | |
749 | } | |
750 | else | |
751 | error (_("dll path too long")); | |
752 | } | |
de1b3c3d PA |
753 | /* Record cygwin1.dll .text start/end. */ |
754 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
755 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
756 | { | |
757 | bfd *abfd; | |
758 | asection *text = NULL; | |
759 | CORE_ADDR text_vma; | |
8e860359 | 760 | |
1c00ec6b | 761 | abfd = gdb_bfd_open (so->so_name, "pei-i386", -1); |
a244bdca | 762 | |
de1b3c3d PA |
763 | if (!abfd) |
764 | return so; | |
765 | ||
766 | if (bfd_check_format (abfd, bfd_object)) | |
767 | text = bfd_get_section_by_name (abfd, ".text"); | |
768 | ||
769 | if (!text) | |
770 | { | |
cbb099e8 | 771 | gdb_bfd_unref (abfd); |
de1b3c3d PA |
772 | return so; |
773 | } | |
774 | ||
7a9dd1b2 | 775 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 776 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
777 | file header and the section alignment. */ |
778 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
779 | load_addr + 0x1000); | |
dc05df57 | 780 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text); |
de1b3c3d | 781 | |
cbb099e8 | 782 | gdb_bfd_unref (abfd); |
de1b3c3d | 783 | } |
10325bc5 | 784 | #endif |
de1b3c3d PA |
785 | |
786 | return so; | |
8e860359 CF |
787 | } |
788 | ||
3ee6f623 | 789 | static char * |
dfe7f3ac CF |
790 | get_image_name (HANDLE h, void *address, int unicode) |
791 | { | |
d0d0ab16 | 792 | #ifdef __CYGWIN__ |
b3c613f2 | 793 | static char buf[__PMAX]; |
d0d0ab16 | 794 | #else |
b3c613f2 | 795 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 796 | #endif |
dfe7f3ac CF |
797 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
798 | char *address_ptr; | |
799 | int len = 0; | |
800 | char b[2]; | |
5732a500 | 801 | SIZE_T done; |
dfe7f3ac CF |
802 | |
803 | /* Attempt to read the name of the dll that was detected. | |
804 | This is documented to work only when actively debugging | |
581e13c1 | 805 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
806 | if (address == NULL) |
807 | return NULL; | |
808 | ||
dfe7f3ac | 809 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
810 | address isn't null. */ |
811 | if (!ReadProcessMemory (h, address, &address_ptr, | |
812 | sizeof (address_ptr), &done) | |
6f17862b | 813 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
814 | return NULL; |
815 | ||
581e13c1 | 816 | /* Find the length of the string. */ |
6f17862b CF |
817 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
818 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
819 | continue; | |
dfe7f3ac CF |
820 | |
821 | if (!unicode) | |
822 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
823 | else | |
824 | { | |
825 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
826 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
827 | &done); | |
d0d0ab16 | 828 | #ifdef __CYGWIN__ |
b3c613f2 | 829 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
830 | #else |
831 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
832 | 0, 0); | |
833 | #endif | |
dfe7f3ac CF |
834 | } |
835 | ||
836 | return buf; | |
837 | } | |
838 | ||
24e60978 SC |
839 | /* Wait for child to do something. Return pid of child, or -1 in case |
840 | of error; store status through argument pointer OURSTATUS. */ | |
1750a5ef | 841 | static int |
0a65a603 | 842 | handle_load_dll (void *dummy) |
24e60978 | 843 | { |
3a4b77d8 | 844 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
b3c613f2 | 845 | char dll_buf[__PMAX]; |
450005e7 | 846 | char *dll_name = NULL; |
3cee93ac | 847 | |
3a4b77d8 | 848 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 849 | |
94481b8c JB |
850 | /* Try getting the DLL name by searching the list of known modules |
851 | and matching their base address against this new DLL's base address. | |
852 | ||
853 | FIXME: brobecker/2013-12-10: | |
854 | It seems odd to be going through this search if the DLL name could | |
855 | simply be extracted via "event->lpImageName". Moreover, some | |
856 | experimentation with various versions of Windows seem to indicate | |
857 | that it might still be too early for this DLL to be listed when | |
858 | querying the system about the current list of modules, thus making | |
859 | this attempt pointless. | |
860 | ||
861 | This code can therefore probably be removed. But at the time of | |
862 | this writing, we are too close to creating the GDB 7.7 branch | |
863 | for us to make such a change. We are therefore defering it. */ | |
864 | ||
d3653bf6 | 865 | if (!get_module_name (event->lpBaseOfDll, dll_buf)) |
8e860359 | 866 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; |
3cee93ac | 867 | |
1e37c281 | 868 | dll_name = dll_buf; |
24e60978 | 869 | |
94481b8c JB |
870 | /* Try getting the DLL name via the lpImageName field of the event. |
871 | Note that Microsoft documents this fields as strictly optional, | |
872 | in the sense that it might be NULL. And the first DLL event in | |
873 | particular is explicitly documented as "likely not pass[ed]" | |
874 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
dfe7f3ac | 875 | if (*dll_name == '\0') |
de1b3c3d PA |
876 | dll_name = get_image_name (current_process_handle, |
877 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
878 | if (!dll_name) |
879 | return 1; | |
880 | ||
dc05df57 | 881 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 882 | solib_end = solib_end->next; |
450005e7 | 883 | |
a74ce742 PM |
884 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
885 | host_address_to_string (solib_end->lm_info->load_addr))); | |
7488902c | 886 | |
450005e7 CF |
887 | return 1; |
888 | } | |
889 | ||
3ee6f623 | 890 | static void |
dc05df57 | 891 | windows_free_so (struct so_list *so) |
3ee6f623 | 892 | { |
3ee6f623 CF |
893 | if (so->lm_info) |
894 | xfree (so->lm_info); | |
de1b3c3d | 895 | xfree (so); |
3cb8e7f6 CF |
896 | } |
897 | ||
d3ff4a77 | 898 | static int |
0a65a603 | 899 | handle_unload_dll (void *dummy) |
d3ff4a77 | 900 | { |
d3653bf6 | 901 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 902 | struct so_list *so; |
d3ff4a77 CF |
903 | |
904 | for (so = &solib_start; so->next != NULL; so = so->next) | |
3ee6f623 | 905 | if (so->next->lm_info->load_addr == lpBaseOfDll) |
d3ff4a77 | 906 | { |
3ee6f623 | 907 | struct so_list *sodel = so->next; |
a25cd31f | 908 | |
d3ff4a77 CF |
909 | so->next = sodel->next; |
910 | if (!so->next) | |
911 | solib_end = so; | |
7488902c PM |
912 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); |
913 | ||
dc05df57 | 914 | windows_free_so (sodel); |
d3ff4a77 CF |
915 | return 1; |
916 | } | |
3929abe9 | 917 | |
ecc13e53 JB |
918 | /* We did not find any DLL that was previously loaded at this address, |
919 | so register a complaint. We do not report an error, because we have | |
920 | observed that this may be happening under some circumstances. For | |
921 | instance, running 32bit applications on x64 Windows causes us to receive | |
922 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
923 | events are apparently caused by the WOW layer, the interface between | |
924 | 32bit and 64bit worlds). */ | |
925 | complaint (&symfile_complaints, _("dll starting at %s not found."), | |
926 | host_address_to_string (lpBaseOfDll)); | |
d3ff4a77 CF |
927 | |
928 | return 0; | |
929 | } | |
930 | ||
581e13c1 | 931 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 932 | static void |
dc05df57 | 933 | windows_clear_solib (void) |
450005e7 | 934 | { |
450005e7 CF |
935 | solib_start.next = NULL; |
936 | solib_end = &solib_start; | |
450005e7 | 937 | } |
295732ea | 938 | |
581e13c1 | 939 | /* Load DLL symbol info. */ |
d603d4b3 | 940 | static void |
7470a420 | 941 | dll_symbol_command (char *args, int from_tty) |
450005e7 | 942 | { |
8e860359 | 943 | int n; |
450005e7 | 944 | dont_repeat (); |
8e860359 | 945 | |
450005e7 | 946 | if (args == NULL) |
8a3fe4f8 | 947 | error (_("dll-symbols requires a file name")); |
450005e7 | 948 | |
8e860359 CF |
949 | n = strlen (args); |
950 | if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0) | |
951 | { | |
952 | char *newargs = (char *) alloca (n + 4 + 1); | |
953 | strcpy (newargs, args); | |
954 | strcat (newargs, ".dll"); | |
955 | args = newargs; | |
956 | } | |
957 | ||
7470a420 | 958 | safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED); |
8e860359 | 959 | } |
450005e7 | 960 | |
3cee93ac CF |
961 | /* Handle DEBUG_STRING output from child process. |
962 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 963 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
964 | static int |
965 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
966 | { | |
a244bdca CF |
967 | char *s = NULL; |
968 | int retval = 0; | |
3cee93ac CF |
969 | |
970 | if (!target_read_string | |
2c647436 PM |
971 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
972 | &s, 1024, 0) | |
3cee93ac | 973 | || !s || !*s) |
a244bdca | 974 | /* nothing to do */; |
581e13c1 MS |
975 | else if (strncmp (s, _CYGWIN_SIGNAL_STRING, |
976 | sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0) | |
3cee93ac | 977 | { |
10325bc5 | 978 | #ifdef __CYGWIN__ |
d3a09475 | 979 | if (strncmp (s, "cYg", 3) != 0) |
10325bc5 | 980 | #endif |
8a3fe4f8 | 981 | warning (("%s"), s); |
3cee93ac | 982 | } |
cb832706 | 983 | #ifdef __COPY_CONTEXT_SIZE |
d3a09475 | 984 | else |
3cee93ac | 985 | { |
581e13c1 MS |
986 | /* Got a cygwin signal marker. A cygwin signal is followed by |
987 | the signal number itself and then optionally followed by the | |
988 | thread id and address to saved context within the DLL. If | |
989 | these are supplied, then the given thread is assumed to have | |
990 | issued the signal and the context from the thread is assumed | |
991 | to be stored at the given address in the inferior. Tell gdb | |
992 | to treat this like a real signal. */ | |
3cee93ac | 993 | char *p; |
3929abe9 | 994 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
2ea28649 | 995 | int gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 996 | |
0714f9bf SS |
997 | ourstatus->value.sig = gotasig; |
998 | if (gotasig) | |
a244bdca CF |
999 | { |
1000 | LPCVOID x; | |
2c15ef43 | 1001 | SIZE_T n; |
c62fa0e2 | 1002 | |
a244bdca CF |
1003 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
1004 | retval = strtoul (p, &p, 0); | |
1005 | if (!retval) | |
1006 | retval = main_thread_id; | |
40653b35 | 1007 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 1008 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
1009 | &saved_context, |
1010 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
1011 | && n == __COPY_CONTEXT_SIZE) |
1012 | have_saved_context = 1; | |
1013 | current_event.dwThreadId = retval; | |
1014 | } | |
3cee93ac | 1015 | } |
cb832706 | 1016 | #endif |
3cee93ac | 1017 | |
a244bdca CF |
1018 | if (s) |
1019 | xfree (s); | |
1020 | return retval; | |
3cee93ac | 1021 | } |
24e60978 | 1022 | |
c1748f97 PM |
1023 | static int |
1024 | display_selector (HANDLE thread, DWORD sel) | |
1025 | { | |
1026 | LDT_ENTRY info; | |
1027 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
1028 | { | |
1029 | int base, limit; | |
d50a0ce2 | 1030 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 1031 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
1032 | { |
1033 | puts_filtered ("Segment not present\n"); | |
1034 | return 0; | |
1035 | } | |
c1748f97 PM |
1036 | base = (info.HighWord.Bits.BaseHi << 24) + |
1037 | (info.HighWord.Bits.BaseMid << 16) | |
1038 | + info.BaseLow; | |
1039 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
1040 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 1041 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
1042 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
1043 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 1044 | puts_filtered(" 32-bit "); |
c1748f97 | 1045 | else |
baa93fa6 | 1046 | puts_filtered(" 16-bit "); |
c1748f97 PM |
1047 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1048 | { | |
1049 | case 0: | |
baa93fa6 CF |
1050 | puts_filtered ("Data (Read-Only, Exp-up"); |
1051 | break; | |
c1748f97 | 1052 | case 1: |
baa93fa6 CF |
1053 | puts_filtered ("Data (Read/Write, Exp-up"); |
1054 | break; | |
c1748f97 | 1055 | case 2: |
baa93fa6 CF |
1056 | puts_filtered ("Unused segment ("); |
1057 | break; | |
c1748f97 | 1058 | case 3: |
baa93fa6 CF |
1059 | puts_filtered ("Data (Read/Write, Exp-down"); |
1060 | break; | |
c1748f97 | 1061 | case 4: |
baa93fa6 CF |
1062 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1063 | break; | |
c1748f97 | 1064 | case 5: |
baa93fa6 | 1065 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1066 | break; |
1067 | case 6: | |
baa93fa6 | 1068 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1069 | break; |
1070 | case 7: | |
baa93fa6 | 1071 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1072 | break; |
1073 | default: | |
1074 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
1075 | } | |
1076 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1077 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1078 | puts_filtered (")\n"); |
1079 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1080 | puts_filtered("System selector "); | |
1081 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
1082 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 1083 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1084 | else |
1085 | puts_filtered ("Byte granular.\n"); | |
1086 | return 1; | |
1087 | } | |
1088 | else | |
1089 | { | |
5572ce1f PM |
1090 | DWORD err = GetLastError (); |
1091 | if (err == ERROR_NOT_SUPPORTED) | |
1092 | printf_filtered ("Function not supported\n"); | |
1093 | else | |
d50a0ce2 | 1094 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1095 | return 0; |
1096 | } | |
1097 | } | |
1098 | ||
1099 | static void | |
1100 | display_selectors (char * args, int from_tty) | |
1101 | { | |
1102 | if (!current_thread) | |
1103 | { | |
1104 | puts_filtered ("Impossible to display selectors now.\n"); | |
1105 | return; | |
1106 | } | |
1107 | if (!args) | |
1108 | { | |
1109 | ||
1110 | puts_filtered ("Selector $cs\n"); | |
1111 | display_selector (current_thread->h, | |
baa93fa6 | 1112 | current_thread->context.SegCs); |
c1748f97 PM |
1113 | puts_filtered ("Selector $ds\n"); |
1114 | display_selector (current_thread->h, | |
baa93fa6 | 1115 | current_thread->context.SegDs); |
c1748f97 PM |
1116 | puts_filtered ("Selector $es\n"); |
1117 | display_selector (current_thread->h, | |
baa93fa6 | 1118 | current_thread->context.SegEs); |
c1748f97 PM |
1119 | puts_filtered ("Selector $ss\n"); |
1120 | display_selector (current_thread->h, | |
baa93fa6 | 1121 | current_thread->context.SegSs); |
c1748f97 PM |
1122 | puts_filtered ("Selector $fs\n"); |
1123 | display_selector (current_thread->h, | |
1124 | current_thread->context.SegFs); | |
1125 | puts_filtered ("Selector $gs\n"); | |
1126 | display_selector (current_thread->h, | |
baa93fa6 | 1127 | current_thread->context.SegGs); |
c1748f97 PM |
1128 | } |
1129 | else | |
1130 | { | |
1131 | int sel; | |
1132 | sel = parse_and_eval_long (args); | |
1133 | printf_filtered ("Selector \"%s\"\n",args); | |
1134 | display_selector (current_thread->h, sel); | |
1135 | } | |
1136 | } | |
1137 | ||
7393af7c | 1138 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1139 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1140 | host_address_to_string (\ | |
1141 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1142 | |
36339ecd | 1143 | static int |
450005e7 | 1144 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1145 | { |
3cee93ac | 1146 | thread_info *th; |
29fe111d | 1147 | DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode; |
3cee93ac | 1148 | |
29fe111d | 1149 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1150 | |
581e13c1 | 1151 | /* Record the context of the current thread. */ |
3cee93ac | 1152 | th = thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1153 | |
29fe111d | 1154 | switch (code) |
24e60978 | 1155 | { |
1ef980b9 | 1156 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c | 1157 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
a493e3e2 | 1158 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
10325bc5 | 1159 | #ifdef __CYGWIN__ |
8da8e0b3 | 1160 | { |
581e13c1 MS |
1161 | /* See if the access violation happened within the cygwin DLL |
1162 | itself. Cygwin uses a kind of exception handling to deal | |
1163 | with passed-in invalid addresses. gdb should not treat | |
1164 | these as real SEGVs since they will be silently handled by | |
1165 | cygwin. A real SEGV will (theoretically) be caught by | |
1166 | cygwin later in the process and will be sent as a | |
1167 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1168 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1169 | const char *fn; |
581e13c1 MS |
1170 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) |
1171 | current_event.u.Exception.ExceptionRecord.ExceptionAddress; | |
1172 | ||
1173 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1174 | && addr < cygwin_load_end)) | |
a244bdca | 1175 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
581e13c1 MS |
1176 | && strncmp (fn, "KERNEL32!IsBad", |
1177 | strlen ("KERNEL32!IsBad")) == 0)) | |
8da8e0b3 CF |
1178 | return 0; |
1179 | } | |
10325bc5 | 1180 | #endif |
7393af7c PM |
1181 | break; |
1182 | case STATUS_STACK_OVERFLOW: | |
1183 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
a493e3e2 | 1184 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
7393af7c PM |
1185 | break; |
1186 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1187 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
a493e3e2 | 1188 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1189 | break; |
1190 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1191 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
a493e3e2 | 1192 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1193 | break; |
1194 | case STATUS_FLOAT_INEXACT_RESULT: | |
1195 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
a493e3e2 | 1196 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1197 | break; |
1198 | case STATUS_FLOAT_INVALID_OPERATION: | |
1199 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
a493e3e2 | 1200 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1201 | break; |
1202 | case STATUS_FLOAT_OVERFLOW: | |
1203 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
a493e3e2 | 1204 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1205 | break; |
1206 | case STATUS_FLOAT_STACK_CHECK: | |
1207 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
a493e3e2 | 1208 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 | 1209 | break; |
3b7c8b74 | 1210 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c | 1211 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
a493e3e2 | 1212 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1213 | break; |
3b7c8b74 | 1214 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c | 1215 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
a493e3e2 | 1216 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1217 | break; |
3b7c8b74 | 1218 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1219 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
a493e3e2 | 1220 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
3b7c8b74 | 1221 | break; |
7393af7c PM |
1222 | case STATUS_INTEGER_OVERFLOW: |
1223 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
a493e3e2 | 1224 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 SC |
1225 | break; |
1226 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1227 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
a493e3e2 | 1228 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 SC |
1229 | break; |
1230 | case DBG_CONTROL_C: | |
7393af7c | 1231 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
a493e3e2 | 1232 | ourstatus->value.sig = GDB_SIGNAL_INT; |
5b421780 PM |
1233 | break; |
1234 | case DBG_CONTROL_BREAK: | |
7393af7c | 1235 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
a493e3e2 | 1236 | ourstatus->value.sig = GDB_SIGNAL_INT; |
1ef980b9 SC |
1237 | break; |
1238 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1239 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
a493e3e2 | 1240 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 | 1241 | break; |
8227c82d | 1242 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c | 1243 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
a493e3e2 | 1244 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1245 | break; |
1246 | case EXCEPTION_PRIV_INSTRUCTION: | |
1247 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
a493e3e2 | 1248 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1249 | break; |
1250 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1251 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
a493e3e2 | 1252 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
8227c82d | 1253 | break; |
1ef980b9 | 1254 | default: |
581e13c1 | 1255 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1256 | if (current_event.u.Exception.dwFirstChance) |
a244bdca | 1257 | return -1; |
d50a0ce2 CV |
1258 | printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n", |
1259 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
a74ce742 PM |
1260 | host_address_to_string ( |
1261 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
a493e3e2 | 1262 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
1ef980b9 | 1263 | break; |
24e60978 | 1264 | } |
24e60978 | 1265 | exception_count++; |
7393af7c | 1266 | last_sig = ourstatus->value.sig; |
36339ecd | 1267 | return 1; |
24e60978 SC |
1268 | } |
1269 | ||
3cee93ac | 1270 | /* Resume all artificially suspended threads if we are continuing |
581e13c1 | 1271 | execution. */ |
3cee93ac | 1272 | static BOOL |
dc05df57 | 1273 | windows_continue (DWORD continue_status, int id) |
3cee93ac CF |
1274 | { |
1275 | int i; | |
1276 | thread_info *th; | |
1277 | BOOL res; | |
1278 | ||
0c3d84be | 1279 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n", |
d50a0ce2 CV |
1280 | (unsigned) current_event.dwProcessId, |
1281 | (unsigned) current_event.dwThreadId, | |
dfe7f3ac | 1282 | continue_status == DBG_CONTINUE ? |
7393af7c | 1283 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1284 | |
1285 | for (th = &thread_head; (th = th->next) != NULL;) | |
1286 | if ((id == -1 || id == (int) th->id) | |
1287 | && th->suspended) | |
1288 | { | |
1289 | if (debug_registers_changed) | |
1290 | { | |
1291 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1292 | th->context.Dr0 = dr[0]; | |
1293 | th->context.Dr1 = dr[1]; | |
1294 | th->context.Dr2 = dr[2]; | |
1295 | th->context.Dr3 = dr[3]; | |
1296 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1297 | th->context.Dr7 = dr[7]; | |
1298 | } | |
1299 | if (th->context.ContextFlags) | |
1300 | { | |
1301 | CHECK (SetThreadContext (th->h, &th->context)); | |
1302 | th->context.ContextFlags = 0; | |
1303 | } | |
1304 | if (th->suspended > 0) | |
1305 | (void) ResumeThread (th->h); | |
1306 | th->suspended = 0; | |
1307 | } | |
1308 | ||
0714f9bf SS |
1309 | res = ContinueDebugEvent (current_event.dwProcessId, |
1310 | current_event.dwThreadId, | |
1311 | continue_status); | |
3cee93ac | 1312 | |
fa4ba8da | 1313 | debug_registers_changed = 0; |
3cee93ac CF |
1314 | return res; |
1315 | } | |
1316 | ||
d6dc8049 CF |
1317 | /* Called in pathological case where Windows fails to send a |
1318 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1319 | static DWORD |
5439edaa | 1320 | fake_create_process (void) |
3ade5333 CF |
1321 | { |
1322 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1323 | current_event.dwProcessId); | |
bf25528d CF |
1324 | if (current_process_handle != NULL) |
1325 | open_process_used = 1; | |
1326 | else | |
1327 | { | |
d50a0ce2 CV |
1328 | error (_("OpenProcess call failed, GetLastError = %u"), |
1329 | (unsigned) GetLastError ()); | |
bf25528d CF |
1330 | /* We can not debug anything in that case. */ |
1331 | } | |
3ade5333 | 1332 | main_thread_id = current_event.dwThreadId; |
711e434b PM |
1333 | current_thread = windows_add_thread ( |
1334 | ptid_build (current_event.dwProcessId, 0, | |
1335 | current_event.dwThreadId), | |
1336 | current_event.u.CreateThread.hThread, | |
1337 | current_event.u.CreateThread.lpThreadLocalBase); | |
3ade5333 CF |
1338 | return main_thread_id; |
1339 | } | |
1340 | ||
a244bdca | 1341 | static void |
28439f5e | 1342 | windows_resume (struct target_ops *ops, |
2ea28649 | 1343 | ptid_t ptid, int step, enum gdb_signal sig) |
a244bdca CF |
1344 | { |
1345 | thread_info *th; | |
1346 | DWORD continue_status = DBG_CONTINUE; | |
1347 | ||
2dc38344 PA |
1348 | /* A specific PTID means `step only this thread id'. */ |
1349 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1350 | ||
1351 | /* If we're continuing all threads, it's the current inferior that | |
1352 | should be handled specially. */ | |
1353 | if (resume_all) | |
1354 | ptid = inferior_ptid; | |
a244bdca | 1355 | |
a493e3e2 | 1356 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1357 | { |
1358 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1359 | { | |
1360 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1361 | } | |
1362 | else if (sig == last_sig) | |
1363 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1364 | else | |
1365 | #if 0 | |
1366 | /* This code does not seem to work, because | |
1367 | the kernel does probably not consider changes in the ExceptionRecord | |
1368 | structure when passing the exception to the inferior. | |
1369 | Note that this seems possible in the exception handler itself. */ | |
1370 | { | |
1371 | int i; | |
1372 | for (i = 0; xlate[i].them != -1; i++) | |
1373 | if (xlate[i].us == sig) | |
1374 | { | |
581e13c1 MS |
1375 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
1376 | = xlate[i].them; | |
a244bdca CF |
1377 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1378 | break; | |
1379 | } | |
1380 | if (continue_status == DBG_CONTINUE) | |
1381 | { | |
1382 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1383 | } | |
1384 | } | |
1385 | #endif | |
1386 | DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n", | |
1387 | last_sig)); | |
1388 | } | |
1389 | ||
a493e3e2 | 1390 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1391 | |
dc05df57 | 1392 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1393 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca | 1394 | |
581e13c1 | 1395 | /* Get context for currently selected thread. */ |
2dc38344 | 1396 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1397 | if (th) |
1398 | { | |
1399 | if (step) | |
1400 | { | |
581e13c1 | 1401 | /* Single step by setting t bit. */ |
a97b0ac8 UW |
1402 | struct regcache *regcache = get_current_regcache (); |
1403 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1404 | windows_fetch_inferior_registers (ops, regcache, | |
1405 | gdbarch_ps_regnum (gdbarch)); | |
a244bdca CF |
1406 | th->context.EFlags |= FLAG_TRACE_BIT; |
1407 | } | |
1408 | ||
1409 | if (th->context.ContextFlags) | |
1410 | { | |
1411 | if (debug_registers_changed) | |
1412 | { | |
1413 | th->context.Dr0 = dr[0]; | |
1414 | th->context.Dr1 = dr[1]; | |
1415 | th->context.Dr2 = dr[2]; | |
1416 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1417 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1418 | th->context.Dr7 = dr[7]; |
1419 | } | |
1420 | CHECK (SetThreadContext (th->h, &th->context)); | |
1421 | th->context.ContextFlags = 0; | |
1422 | } | |
1423 | } | |
1424 | ||
1425 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1426 | Otherwise complain. */ |
a244bdca | 1427 | |
2dc38344 | 1428 | if (resume_all) |
dc05df57 | 1429 | windows_continue (continue_status, -1); |
2dc38344 | 1430 | else |
dc05df57 | 1431 | windows_continue (continue_status, ptid_get_tid (ptid)); |
a244bdca CF |
1432 | } |
1433 | ||
695de547 CF |
1434 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1435 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1436 | Note that this function is not available prior to Windows XP. In this case | |
1437 | we emit a warning. */ | |
d603d4b3 | 1438 | static BOOL WINAPI |
695de547 CF |
1439 | ctrl_c_handler (DWORD event_type) |
1440 | { | |
1441 | const int attach_flag = current_inferior ()->attach_flag; | |
1442 | ||
bb0613a5 PM |
1443 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1444 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1445 | return FALSE; |
1446 | ||
1447 | /* If the inferior and the debugger share the same console, do nothing as | |
1448 | the inferior has also received the Ctrl-C event. */ | |
1449 | if (!new_console && !attach_flag) | |
1450 | return TRUE; | |
1451 | ||
1452 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1453 | warning (_("Could not interrupt program. " |
1454 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1455 | |
1456 | /* Return true to tell that Ctrl-C has been handled. */ | |
1457 | return TRUE; | |
1458 | } | |
1459 | ||
8a892701 | 1460 | /* Get the next event from the child. Return 1 if the event requires |
695de547 | 1461 | handling by WFI (or whatever). */ |
1e37c281 | 1462 | static int |
28439f5e PA |
1463 | get_windows_debug_event (struct target_ops *ops, |
1464 | int pid, struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1465 | { |
1466 | BOOL debug_event; | |
8a892701 | 1467 | DWORD continue_status, event_code; |
87a45c96 | 1468 | thread_info *th; |
8a892701 | 1469 | static thread_info dummy_thread_info; |
450005e7 | 1470 | int retval = 0; |
1e37c281 | 1471 | |
a493e3e2 | 1472 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1473 | |
8a892701 | 1474 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1475 | goto out; |
1e37c281 JM |
1476 | |
1477 | event_count++; | |
1478 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1479 | |
8a892701 | 1480 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1481 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1482 | th = NULL; |
a244bdca | 1483 | have_saved_context = 0; |
8a892701 CF |
1484 | |
1485 | switch (event_code) | |
1e37c281 JM |
1486 | { |
1487 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1488 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1489 | (unsigned) current_event.dwProcessId, |
1490 | (unsigned) current_event.dwThreadId, | |
1491 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1492 | if (saw_create != 1) |
3ade5333 | 1493 | { |
181e7f93 PA |
1494 | struct inferior *inf; |
1495 | inf = find_inferior_pid (current_event.dwProcessId); | |
1496 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1497 | { |
d6dc8049 CF |
1498 | /* Kludge around a Windows bug where first event is a create |
1499 | thread event. Caused when attached process does not have | |
581e13c1 | 1500 | a main thread. */ |
3a3e9ee3 | 1501 | retval = fake_create_process (); |
181e7f93 PA |
1502 | if (retval) |
1503 | saw_create++; | |
3ade5333 CF |
1504 | } |
1505 | break; | |
1506 | } | |
581e13c1 | 1507 | /* Record the existence of this thread. */ |
450005e7 | 1508 | retval = current_event.dwThreadId; |
dc05df57 | 1509 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1510 | current_event.dwThreadId), |
711e434b PM |
1511 | current_event.u.CreateThread.hThread, |
1512 | current_event.u.CreateThread.lpThreadLocalBase); | |
1513 | ||
1e37c281 JM |
1514 | break; |
1515 | ||
1516 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1517 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1518 | (unsigned) current_event.dwProcessId, |
1519 | (unsigned) current_event.dwThreadId, | |
1520 | "EXIT_THREAD_DEBUG_EVENT")); | |
b3c613f2 | 1521 | |
87a45c96 CF |
1522 | if (current_event.dwThreadId != main_thread_id) |
1523 | { | |
dc05df57 | 1524 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1525 | current_event.dwThreadId), |
1526 | current_event.u.ExitThread.dwExitCode); | |
87a45c96 CF |
1527 | th = &dummy_thread_info; |
1528 | } | |
1e37c281 JM |
1529 | break; |
1530 | ||
1531 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1532 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1533 | (unsigned) current_event.dwProcessId, |
1534 | (unsigned) current_event.dwThreadId, | |
1535 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1536 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1537 | if (++saw_create != 1) |
bf25528d | 1538 | break; |
1e37c281 | 1539 | |
dfe7f3ac | 1540 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1541 | if (main_thread_id) |
695de547 | 1542 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1543 | main_thread_id), |
1544 | 0); | |
9d3789f7 | 1545 | main_thread_id = current_event.dwThreadId; |
581e13c1 | 1546 | /* Add the main thread. */ |
dc05df57 | 1547 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
695de547 | 1548 | current_event.dwThreadId), |
711e434b PM |
1549 | current_event.u.CreateProcessInfo.hThread, |
1550 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
3a3e9ee3 | 1551 | retval = current_event.dwThreadId; |
1e37c281 JM |
1552 | break; |
1553 | ||
1554 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1555 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1556 | (unsigned) current_event.dwProcessId, |
1557 | (unsigned) current_event.dwThreadId, | |
1558 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1559 | if (!windows_initialization_done) |
1560 | { | |
1561 | target_terminal_ours (); | |
1562 | target_mourn_inferior (); | |
1563 | error (_("During startup program exited with code 0x%x."), | |
1564 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1565 | } | |
1566 | else if (saw_create == 1) | |
1567 | { | |
1568 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1569 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1570 | retval = main_thread_id; | |
1571 | } | |
8a892701 | 1572 | break; |
1e37c281 JM |
1573 | |
1574 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1575 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1576 | (unsigned) current_event.dwProcessId, |
1577 | (unsigned) current_event.dwThreadId, | |
1578 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1579 | CloseHandle (current_event.u.LoadDll.hFile); |
dfe7f3ac CF |
1580 | if (saw_create != 1) |
1581 | break; | |
8a892701 | 1582 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1583 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1584 | ourstatus->value.integer = 0; | |
9d3789f7 | 1585 | retval = main_thread_id; |
1e37c281 JM |
1586 | break; |
1587 | ||
1588 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1589 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1590 | (unsigned) current_event.dwProcessId, |
1591 | (unsigned) current_event.dwThreadId, | |
1592 | "UNLOAD_DLL_DEBUG_EVENT")); | |
dfe7f3ac CF |
1593 | if (saw_create != 1) |
1594 | break; | |
d3ff4a77 | 1595 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1596 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1597 | ourstatus->value.integer = 0; | |
1598 | retval = main_thread_id; | |
d3ff4a77 | 1599 | break; |
1e37c281 JM |
1600 | |
1601 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1602 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1603 | (unsigned) current_event.dwProcessId, |
1604 | (unsigned) current_event.dwThreadId, | |
1605 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1606 | if (saw_create != 1) |
1607 | break; | |
a244bdca CF |
1608 | switch (handle_exception (ourstatus)) |
1609 | { | |
1610 | case 0: | |
1611 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1612 | break; | |
1613 | case 1: | |
1614 | retval = current_event.dwThreadId; | |
1615 | break; | |
1616 | case -1: | |
1617 | last_sig = 1; | |
1618 | continue_status = -1; | |
1619 | break; | |
1620 | } | |
1e37c281 JM |
1621 | break; |
1622 | ||
581e13c1 | 1623 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1624 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1625 | (unsigned) current_event.dwProcessId, |
1626 | (unsigned) current_event.dwThreadId, | |
1627 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1628 | if (saw_create != 1) |
1629 | break; | |
a244bdca | 1630 | retval = handle_output_debug_string (ourstatus); |
1e37c281 | 1631 | break; |
9d3789f7 | 1632 | |
1e37c281 | 1633 | default: |
dfe7f3ac CF |
1634 | if (saw_create != 1) |
1635 | break; | |
0c3d84be | 1636 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1637 | (unsigned) current_event.dwProcessId, |
1638 | (unsigned) current_event.dwThreadId); | |
1639 | printf_unfiltered (" unknown event code %u\n", | |
1640 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1641 | break; |
1642 | } | |
1643 | ||
dfe7f3ac | 1644 | if (!retval || saw_create != 1) |
a244bdca CF |
1645 | { |
1646 | if (continue_status == -1) | |
02529b48 | 1647 | windows_resume (ops, minus_one_ptid, 0, 1); |
a244bdca | 1648 | else |
dc05df57 | 1649 | CHECK (windows_continue (continue_status, -1)); |
a244bdca | 1650 | } |
450005e7 | 1651 | else |
9d3789f7 | 1652 | { |
2dc38344 PA |
1653 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
1654 | retval); | |
3ade5333 | 1655 | current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); |
9d3789f7 | 1656 | } |
1e37c281 JM |
1657 | |
1658 | out: | |
450005e7 | 1659 | return retval; |
1e37c281 JM |
1660 | } |
1661 | ||
2dc38344 | 1662 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1663 | static ptid_t |
117de6a9 | 1664 | windows_wait (struct target_ops *ops, |
47608cb1 | 1665 | ptid_t ptid, struct target_waitstatus *ourstatus, int options) |
24e60978 | 1666 | { |
2dc38344 | 1667 | int pid = -1; |
39f77062 | 1668 | |
c44537cf CV |
1669 | target_terminal_ours (); |
1670 | ||
24e60978 SC |
1671 | /* We loop when we get a non-standard exception rather than return |
1672 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1673 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1674 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1675 | isn't necessarily what you think it is. */ |
24e60978 SC |
1676 | |
1677 | while (1) | |
450005e7 | 1678 | { |
c57918b2 | 1679 | int retval; |
2b008701 | 1680 | |
695de547 CF |
1681 | /* If the user presses Ctrl-c while the debugger is waiting |
1682 | for an event, he expects the debugger to interrupt his program | |
1683 | and to get the prompt back. There are two possible situations: | |
1684 | ||
1685 | - The debugger and the program do not share the console, in | |
1686 | which case the Ctrl-c event only reached the debugger. | |
1687 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1688 | the inferior. Note that this case is working starting with |
1689 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1690 | inferior console. |
1691 | ||
1692 | - The debugger and the program share the same console, in which | |
1693 | case both debugger and inferior will receive the Ctrl-c event. | |
1694 | In that case the ctrl_c handler will ignore the event, as the | |
1695 | Ctrl-c event generated inside the inferior will trigger the | |
1696 | expected debug event. | |
1697 | ||
1698 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1699 | signal first and the delay until GDB receives that signal | |
1700 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1701 | after we have unblocked the CTRL+C handler. This would | |
1702 | lead to the debugger stopping prematurely while handling | |
1703 | the new-thread event that comes with the handling of the SIGINT | |
1704 | inside the inferior, and then stop again immediately when | |
1705 | the user tries to resume the execution in the inferior. | |
1706 | This is a classic race that we should try to fix one day. */ | |
1707 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
28439f5e | 1708 | retval = get_windows_debug_event (ops, pid, ourstatus); |
695de547 | 1709 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1710 | |
450005e7 | 1711 | if (retval) |
2dc38344 | 1712 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1713 | else |
1714 | { | |
1715 | int detach = 0; | |
3cee93ac | 1716 | |
98bbd631 AC |
1717 | if (deprecated_ui_loop_hook != NULL) |
1718 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1719 | |
450005e7 | 1720 | if (detach) |
7d85a9c0 | 1721 | windows_kill_inferior (ops); |
450005e7 CF |
1722 | } |
1723 | } | |
24e60978 SC |
1724 | } |
1725 | ||
94481b8c JB |
1726 | /* On certain versions of Windows, the information about ntdll.dll |
1727 | is not available yet at the time we get the LOAD_DLL_DEBUG_EVENT, | |
1728 | thus preventing us from reporting this DLL as an SO. This has been | |
1729 | witnessed on Windows 8.1, for instance. A possible explanation | |
1730 | is that ntdll.dll might be mapped before the SO info gets created | |
1731 | by the Windows system -- ntdll.dll is the first DLL to be reported | |
1732 | via LOAD_DLL_DEBUG_EVENT and other DLLs do not seem to suffer from | |
1733 | that problem. | |
1734 | ||
1735 | If we indeed are missing ntdll.dll, this function tries to recover | |
1736 | from this issue, after the fact. Do nothing if we encounter any | |
1737 | issue trying to locate that DLL. */ | |
1738 | ||
1739 | static void | |
1740 | windows_ensure_ntdll_loaded (void) | |
1741 | { | |
1742 | struct so_list *so; | |
1743 | HMODULE dummy_hmodule; | |
1744 | DWORD cb_needed; | |
1745 | HMODULE *hmodules; | |
1746 | int i; | |
1747 | ||
1748 | for (so = solib_start.next; so != NULL; so = so->next) | |
1749 | if (FILENAME_CMP (lbasename (so->so_name), "ntdll.dll") == 0) | |
1750 | return; /* ntdll.dll already loaded, nothing to do. */ | |
1751 | ||
1752 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, | |
1753 | sizeof (HMODULE), &cb_needed) == 0) | |
1754 | return; | |
1755 | ||
1756 | if (cb_needed < 1) | |
1757 | return; | |
1758 | ||
1759 | hmodules = (HMODULE *) alloca (cb_needed); | |
1760 | if (EnumProcessModules (current_process_handle, hmodules, | |
1761 | cb_needed, &cb_needed) == 0) | |
1762 | return; | |
1763 | ||
1764 | for (i = 0; i < (int) (cb_needed / sizeof (HMODULE)); i++) | |
1765 | { | |
1766 | MODULEINFO mi; | |
774f74c2 PM |
1767 | #ifdef __USEWIDE |
1768 | wchar_t dll_name[__PMAX]; | |
1769 | char name[__PMAX]; | |
1770 | #else | |
94481b8c | 1771 | char dll_name[__PMAX]; |
774f74c2 PM |
1772 | char *name; |
1773 | #endif | |
94481b8c JB |
1774 | if (GetModuleInformation (current_process_handle, hmodules[i], |
1775 | &mi, sizeof (mi)) == 0) | |
1776 | continue; | |
1777 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
1778 | dll_name, sizeof (dll_name)) == 0) | |
1779 | continue; | |
774f74c2 PM |
1780 | #ifdef __USEWIDE |
1781 | wcstombs (name, dll_name, __PMAX); | |
1782 | #else | |
1783 | name = dll_name; | |
1784 | #endif | |
1785 | if (FILENAME_CMP (lbasename (name), "ntdll.dll") == 0) | |
94481b8c | 1786 | { |
774f74c2 | 1787 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); |
94481b8c JB |
1788 | solib_end = solib_end->next; |
1789 | return; | |
1790 | } | |
1791 | } | |
1792 | } | |
1793 | ||
9d3789f7 | 1794 | static void |
dc05df57 | 1795 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 CF |
1796 | { |
1797 | extern int stop_after_trap; | |
fa4ba8da | 1798 | int i; |
d6b48e9c | 1799 | struct inferior *inf; |
2020b7ab | 1800 | struct thread_info *tp; |
9d3789f7 | 1801 | |
a493e3e2 | 1802 | last_sig = GDB_SIGNAL_0; |
9d3789f7 CF |
1803 | event_count = 0; |
1804 | exception_count = 0; | |
bf25528d | 1805 | open_process_used = 0; |
fa4ba8da | 1806 | debug_registers_changed = 0; |
dfe7f3ac | 1807 | debug_registers_used = 0; |
fa4ba8da PM |
1808 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1809 | dr[i] = 0; | |
10325bc5 | 1810 | #ifdef __CYGWIN__ |
de1b3c3d | 1811 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1812 | #endif |
9d3789f7 CF |
1813 | current_event.dwProcessId = pid; |
1814 | memset (¤t_event, 0, sizeof (current_event)); | |
0795be10 | 1815 | push_target (ops); |
cb851954 | 1816 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1817 | windows_clear_solib (); |
9d3789f7 CF |
1818 | clear_proceed_status (); |
1819 | init_wait_for_inferior (); | |
1820 | ||
6c95b8df PA |
1821 | inf = current_inferior (); |
1822 | inferior_appeared (inf, pid); | |
181e7f93 | 1823 | inf->attach_flag = attaching; |
7f9f62ba | 1824 | |
9f9d052e PM |
1825 | /* Make the new process the current inferior, so terminal handling |
1826 | can rely on it. When attaching, we don't know about any thread | |
1827 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1828 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1829 | inferior_ptid = pid_to_ptid (pid); |
1830 | ||
c44537cf | 1831 | terminal_init_inferior_with_pgrp (pid); |
9d3789f7 CF |
1832 | target_terminal_inferior (); |
1833 | ||
16d905e2 | 1834 | windows_initialization_done = 0; |
16c381f0 | 1835 | inf->control.stop_soon = STOP_QUIETLY; |
9d3789f7 CF |
1836 | while (1) |
1837 | { | |
1838 | stop_after_trap = 1; | |
e4c8541f | 1839 | wait_for_inferior (); |
2020b7ab | 1840 | tp = inferior_thread (); |
a493e3e2 | 1841 | if (tp->suspend.stop_signal != GDB_SIGNAL_TRAP) |
16c381f0 | 1842 | resume (0, tp->suspend.stop_signal); |
9d3789f7 CF |
1843 | else |
1844 | break; | |
1845 | } | |
eff8332b | 1846 | |
94481b8c JB |
1847 | /* FIXME: brobecker/2013-12-10: We should try another approach where |
1848 | we first ignore all DLL load/unload events up until this point, | |
1849 | and then iterate over all modules to create the associated shared | |
1850 | objects. This is a fairly significant change, however, and we are | |
1851 | close to creating a release branch, so we are delaying it a bit, | |
1852 | after the branch is created. */ | |
1853 | windows_ensure_ntdll_loaded (); | |
1854 | ||
16d905e2 | 1855 | windows_initialization_done = 1; |
16c381f0 | 1856 | inf->control.stop_soon = NO_STOP_QUIETLY; |
9d3789f7 CF |
1857 | stop_after_trap = 0; |
1858 | return; | |
1859 | } | |
1860 | ||
616a9dc4 CV |
1861 | /* Try to set or remove a user privilege to the current process. Return -1 |
1862 | if that fails, the previous setting of that privilege otherwise. | |
1863 | ||
1864 | This code is copied from the Cygwin source code and rearranged to allow | |
1865 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 1866 | available on NT/2K/XP. */ |
616a9dc4 CV |
1867 | static int |
1868 | set_process_privilege (const char *privilege, BOOL enable) | |
1869 | { | |
616a9dc4 CV |
1870 | HANDLE token_hdl = NULL; |
1871 | LUID restore_priv; | |
1872 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1873 | int ret = -1; | |
1874 | DWORD size; | |
1875 | ||
616a9dc4 CV |
1876 | if (!OpenProcessToken (GetCurrentProcess (), |
1877 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1878 | &token_hdl)) | |
1879 | goto out; | |
1880 | ||
418c6cb3 | 1881 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1882 | goto out; |
1883 | ||
1884 | new_priv.PrivilegeCount = 1; | |
1885 | new_priv.Privileges[0].Luid = restore_priv; | |
1886 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1887 | ||
1888 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1889 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1890 | goto out; |
1891 | #if 0 | |
1892 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1893 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 1894 | windows_attach(). */ |
616a9dc4 | 1895 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 1896 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
1897 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
1898 | goto out; | |
1899 | #endif | |
1900 | ||
1901 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1902 | ||
1903 | out: | |
1904 | if (token_hdl) | |
1905 | CloseHandle (token_hdl); | |
1906 | ||
1907 | return ret; | |
1908 | } | |
1909 | ||
02cc9f49 | 1910 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1911 | static void |
dc05df57 | 1912 | windows_attach (struct target_ops *ops, char *args, int from_tty) |
24e60978 SC |
1913 | { |
1914 | BOOL ok; | |
559e75c0 | 1915 | DWORD pid; |
24e60978 | 1916 | |
74164c56 | 1917 | pid = parse_pid_to_attach (args); |
24e60978 | 1918 | |
616a9dc4 CV |
1919 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1920 | { | |
1921 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
1922 | printf_unfiltered ("This can cause attach to " |
1923 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
1924 | } |
1925 | ||
dc05df57 | 1926 | windows_init_thread_list (); |
9d3789f7 | 1927 | ok = DebugActiveProcess (pid); |
91a175b3 | 1928 | saw_create = 0; |
24e60978 | 1929 | |
10325bc5 | 1930 | #ifdef __CYGWIN__ |
24e60978 | 1931 | if (!ok) |
baa93fa6 | 1932 | { |
581e13c1 | 1933 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
1934 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
1935 | ||
1936 | if (pid > 0) | |
1937 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1938 | } |
1939 | #endif | |
baa93fa6 | 1940 | |
10325bc5 PA |
1941 | if (!ok) |
1942 | error (_("Can't attach to process.")); | |
24e60978 | 1943 | |
2b008701 | 1944 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1945 | |
24e60978 SC |
1946 | if (from_tty) |
1947 | { | |
1948 | char *exec_file = (char *) get_exec_file (0); | |
1949 | ||
1950 | if (exec_file) | |
1951 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1952 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1953 | else |
1954 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1955 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1956 | |
1957 | gdb_flush (gdb_stdout); | |
1958 | } | |
1959 | ||
dc05df57 | 1960 | do_initial_windows_stuff (ops, pid, 1); |
9d3789f7 | 1961 | target_terminal_ours (); |
24e60978 SC |
1962 | } |
1963 | ||
24e60978 | 1964 | static void |
52554a0e | 1965 | windows_detach (struct target_ops *ops, const char *args, int from_tty) |
24e60978 | 1966 | { |
02cc9f49 CV |
1967 | int detached = 1; |
1968 | ||
2b008701 | 1969 | ptid_t ptid = {-1}; |
a493e3e2 | 1970 | windows_resume (ops, ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 1971 | |
2b008701 CF |
1972 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
1973 | { | |
d50a0ce2 CV |
1974 | error (_("Can't detach process %u (error %u)"), |
1975 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 1976 | detached = 0; |
02cc9f49 | 1977 | } |
2b008701 CF |
1978 | DebugSetProcessKillOnExit (FALSE); |
1979 | ||
02cc9f49 | 1980 | if (detached && from_tty) |
24e60978 SC |
1981 | { |
1982 | char *exec_file = get_exec_file (0); | |
1983 | if (exec_file == 0) | |
1984 | exec_file = ""; | |
d50a0ce2 CV |
1985 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
1986 | (unsigned) current_event.dwProcessId); | |
24e60978 SC |
1987 | gdb_flush (gdb_stdout); |
1988 | } | |
7f9f62ba | 1989 | |
26cb8b7c | 1990 | i386_cleanup_dregs (); |
39f77062 | 1991 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1992 | detach_inferior (current_event.dwProcessId); |
1993 | ||
0795be10 | 1994 | unpush_target (ops); |
24e60978 SC |
1995 | } |
1996 | ||
3ee6f623 | 1997 | static char * |
dc05df57 | 1998 | windows_pid_to_exec_file (int pid) |
47216e51 | 1999 | { |
b3c613f2 | 2000 | static char path[__PMAX]; |
10325bc5 | 2001 | #ifdef __CYGWIN__ |
581e13c1 | 2002 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
2003 | int nchars; |
2004 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
2005 | |
2006 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
2007 | nchars = readlink (procexe, path, sizeof(path)); |
2008 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 2009 | { |
33605d39 CF |
2010 | path[nchars] = '\0'; /* Got it */ |
2011 | return path; | |
47216e51 | 2012 | } |
10325bc5 PA |
2013 | #endif |
2014 | ||
33605d39 | 2015 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 2016 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
33605d39 CF |
2017 | if (!get_module_name (0, path)) |
2018 | path[0] = '\0'; | |
2019 | ||
2020 | return path; | |
47216e51 CV |
2021 | } |
2022 | ||
24e60978 SC |
2023 | /* Print status information about what we're accessing. */ |
2024 | ||
2025 | static void | |
dc05df57 | 2026 | windows_files_info (struct target_ops *ignore) |
24e60978 | 2027 | { |
181e7f93 PA |
2028 | struct inferior *inf = current_inferior (); |
2029 | ||
24e60978 | 2030 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
2031 | inf->attach_flag ? "attached" : "child", |
2032 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
2033 | } |
2034 | ||
24e60978 | 2035 | static void |
dc05df57 | 2036 | windows_open (char *arg, int from_tty) |
24e60978 | 2037 | { |
8a3fe4f8 | 2038 | error (_("Use the \"run\" command to start a Unix child process.")); |
24e60978 SC |
2039 | } |
2040 | ||
cd44747c PM |
2041 | /* Modify CreateProcess parameters for use of a new separate console. |
2042 | Parameters are: | |
2043 | *FLAGS: DWORD parameter for general process creation flags. | |
2044 | *SI: STARTUPINFO structure, for which the console window size and | |
2045 | console buffer size is filled in if GDB is running in a console. | |
2046 | to create the new console. | |
2047 | The size of the used font is not available on all versions of | |
2048 | Windows OS. Furthermore, the current font might not be the default | |
2049 | font, but this is still better than before. | |
2050 | If the windows and buffer sizes are computed, | |
2051 | SI->DWFLAGS is changed so that this information is used | |
2052 | by CreateProcess function. */ | |
2053 | ||
2054 | static void | |
2055 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
2056 | { | |
2057 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
2058 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
2059 | ||
2060 | if (hconsole != INVALID_HANDLE_VALUE) | |
2061 | { | |
2062 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2063 | COORD font_size; | |
2064 | CONSOLE_FONT_INFO cfi; | |
2065 | ||
2066 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2067 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2068 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2069 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2070 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2071 | if (font_size.X) | |
2072 | si->dwXSize *= font_size.X; | |
2073 | else | |
2074 | si->dwXSize *= 8; | |
2075 | if (font_size.Y) | |
2076 | si->dwYSize *= font_size.Y; | |
2077 | else | |
2078 | si->dwYSize *= 12; | |
2079 | si->dwXCountChars = sbinfo.dwSize.X; | |
2080 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2081 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2082 | } | |
2083 | *flags |= CREATE_NEW_CONSOLE; | |
2084 | } | |
2085 | ||
c93dbcba EZ |
2086 | #ifndef __CYGWIN__ |
2087 | /* Function called by qsort to sort environment strings. */ | |
2088 | ||
2089 | static int | |
2090 | envvar_cmp (const void *a, const void *b) | |
2091 | { | |
2092 | const char **p = (const char **) a; | |
2093 | const char **q = (const char **) b; | |
2094 | return strcasecmp (*p, *q); | |
2095 | } | |
2096 | #endif | |
2097 | ||
b7ff339d CV |
2098 | #ifdef __CYGWIN__ |
2099 | static void | |
2100 | clear_win32_environment (char **env) | |
2101 | { | |
2102 | int i; | |
2103 | size_t len; | |
2104 | wchar_t *copy = NULL, *equalpos; | |
2105 | ||
2106 | for (i = 0; env[i] && *env[i]; i++) | |
2107 | { | |
2108 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2109 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2110 | mbstowcs (copy, env[i], len); | |
2111 | equalpos = wcschr (copy, L'='); | |
2112 | if (equalpos) | |
2113 | *equalpos = L'\0'; | |
2114 | SetEnvironmentVariableW (copy, NULL); | |
2115 | } | |
2116 | xfree (copy); | |
2117 | } | |
2118 | #endif | |
2119 | ||
dc05df57 | 2120 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2121 | EXEC_FILE is the file to run. |
2122 | ALLARGS is a string containing the arguments to the program. | |
2123 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2124 | ||
24e60978 | 2125 | static void |
dc05df57 | 2126 | windows_create_inferior (struct target_ops *ops, char *exec_file, |
136d6dae | 2127 | char *allargs, char **in_env, int from_tty) |
24e60978 | 2128 | { |
b3c613f2 | 2129 | STARTUPINFO si; |
41b4aadc | 2130 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2131 | cygwin_buf_t real_path[__PMAX]; |
2132 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 | 2133 | const char *sh; |
b3c613f2 CF |
2134 | cygwin_buf_t *toexec; |
2135 | cygwin_buf_t *cygallargs; | |
2136 | cygwin_buf_t *args; | |
b7ff339d CV |
2137 | char **old_env = NULL; |
2138 | PWCHAR w32_env; | |
d0d0ab16 | 2139 | size_t len; |
2becadee CF |
2140 | int tty; |
2141 | int ostdin, ostdout, ostderr; | |
41b4aadc | 2142 | #else |
b3c613f2 CF |
2143 | char real_path[__PMAX]; |
2144 | char shell[__PMAX]; /* Path to shell */ | |
d0d0ab16 CV |
2145 | char *toexec; |
2146 | char *args; | |
8f205f9c | 2147 | size_t args_len; |
41b4aadc | 2148 | HANDLE tty; |
c93dbcba EZ |
2149 | char *w32env; |
2150 | char *temp; | |
2151 | size_t envlen; | |
2152 | int i; | |
2153 | size_t envsize; | |
2154 | char **env; | |
41b4aadc | 2155 | #endif |
d0d0ab16 CV |
2156 | PROCESS_INFORMATION pi; |
2157 | BOOL ret; | |
2158 | DWORD flags = 0; | |
3cb3b8df | 2159 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2160 | |
2161 | if (!exec_file) | |
8a3fe4f8 | 2162 | error (_("No executable specified, use `target exec'.")); |
24e60978 SC |
2163 | |
2164 | memset (&si, 0, sizeof (si)); | |
2165 | si.cb = sizeof (si); | |
2166 | ||
d0d0ab16 CV |
2167 | if (new_group) |
2168 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2169 | ||
2170 | if (new_console) | |
cd44747c | 2171 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2172 | |
10325bc5 | 2173 | #ifdef __CYGWIN__ |
349b409f | 2174 | if (!useshell) |
dfe7f3ac | 2175 | { |
d0d0ab16 CV |
2176 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2177 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2178 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2179 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2180 | toexec = real_path; |
b3c613f2 | 2181 | #ifdef __USEWIDE |
d0d0ab16 CV |
2182 | len = mbstowcs (NULL, allargs, 0) + 1; |
2183 | if (len == (size_t) -1) | |
2184 | error (_("Error starting executable: %d"), errno); | |
2185 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2186 | mbstowcs (cygallargs, allargs, len); | |
60c5c021 CF |
2187 | #else |
2188 | cygallargs = allargs; | |
b3c613f2 | 2189 | #endif |
dfe7f3ac CF |
2190 | } |
2191 | else | |
2192 | { | |
349b409f CF |
2193 | sh = getenv ("SHELL"); |
2194 | if (!sh) | |
2195 | sh = "/bin/sh"; | |
b3c613f2 | 2196 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2197 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2198 | #ifdef __USEWIDE |
d0d0ab16 CV |
2199 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2200 | + mbstowcs (NULL, allargs, 0) + 2; | |
2201 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2202 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2203 | #else |
08850b56 PM |
2204 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2205 | + strlen (allargs) + 2); | |
2206 | cygallargs = (char *) alloca (len); | |
2207 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
b3c613f2 | 2208 | #endif |
dfe7f3ac | 2209 | toexec = shell; |
d0d0ab16 | 2210 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2211 | } |
b3c613f2 CF |
2212 | |
2213 | #ifdef __USEWIDE | |
2214 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2215 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2216 | wcscpy (args, toexec); |
2217 | wcscat (args, L" "); | |
2218 | wcscat (args, cygallargs); | |
b3c613f2 CF |
2219 | #else |
2220 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); | |
2221 | strcpy (args, toexec); | |
2222 | strcat (args, " "); | |
2223 | strcat (args, cygallargs); | |
2224 | #endif | |
2225 | ||
b7ff339d CV |
2226 | #ifdef CW_CVT_ENV_TO_WINENV |
2227 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2228 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2229 | if (w32_env != (PWCHAR) -1) | |
2230 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2231 | else | |
2232 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
2233 | #endif | |
2234 | { | |
2235 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2236 | clear_win32_environment (environ); | |
2237 | /* Prepare the environment vars for CreateProcess. */ | |
2238 | old_env = environ; | |
2239 | environ = in_env; | |
2240 | cygwin_internal (CW_SYNC_WINENV); | |
2241 | w32_env = NULL; | |
2242 | } | |
1750a5ef | 2243 | |
2becadee CF |
2244 | if (!inferior_io_terminal) |
2245 | tty = ostdin = ostdout = ostderr = -1; | |
2246 | else | |
2247 | { | |
2248 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2249 | if (tty < 0) | |
2250 | { | |
2251 | print_sys_errmsg (inferior_io_terminal, errno); | |
2252 | ostdin = ostdout = ostderr = -1; | |
2253 | } | |
2254 | else | |
2255 | { | |
2256 | ostdin = dup (0); | |
2257 | ostdout = dup (1); | |
2258 | ostderr = dup (2); | |
2259 | dup2 (tty, 0); | |
2260 | dup2 (tty, 1); | |
2261 | dup2 (tty, 2); | |
2262 | } | |
2263 | } | |
d0d0ab16 CV |
2264 | |
2265 | windows_init_thread_list (); | |
b3c613f2 CF |
2266 | ret = CreateProcess (0, |
2267 | args, /* command line */ | |
2268 | NULL, /* Security */ | |
2269 | NULL, /* thread */ | |
2270 | TRUE, /* inherit handles */ | |
2271 | flags, /* start flags */ | |
b7ff339d | 2272 | w32_env, /* environment */ |
b3c613f2 CF |
2273 | NULL, /* current directory */ |
2274 | &si, | |
2275 | &pi); | |
b7ff339d CV |
2276 | if (w32_env) |
2277 | /* Just free the Win32 environment, if it could be created. */ | |
2278 | free (w32_env); | |
2279 | else | |
2280 | { | |
2281 | /* Reset all environment variables to avoid leftover on next run. */ | |
2282 | clear_win32_environment (in_env); | |
2283 | /* Restore normal GDB environment variables. */ | |
2284 | environ = old_env; | |
2285 | cygwin_internal (CW_SYNC_WINENV); | |
2286 | } | |
2287 | ||
d0d0ab16 CV |
2288 | if (tty >= 0) |
2289 | { | |
2290 | close (tty); | |
2291 | dup2 (ostdin, 0); | |
2292 | dup2 (ostdout, 1); | |
2293 | dup2 (ostderr, 2); | |
2294 | close (ostdin); | |
2295 | close (ostdout); | |
2296 | close (ostderr); | |
2297 | } | |
41b4aadc | 2298 | #else |
b3c613f2 | 2299 | toexec = exec_file; |
8f205f9c JB |
2300 | /* Build the command line, a space-separated list of tokens where |
2301 | the first token is the name of the module to be executed. | |
2302 | To avoid ambiguities introduced by spaces in the module name, | |
2303 | we quote it. */ | |
2304 | args_len = strlen (toexec) + 2 /* quotes */ + strlen (allargs) + 2; | |
2305 | args = alloca (args_len); | |
2306 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs); | |
d0d0ab16 | 2307 | |
d0d0ab16 CV |
2308 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2309 | ||
41b4aadc CF |
2310 | if (!inferior_io_terminal) |
2311 | tty = INVALID_HANDLE_VALUE; | |
2312 | else | |
2313 | { | |
2314 | SECURITY_ATTRIBUTES sa; | |
2315 | sa.nLength = sizeof(sa); | |
2316 | sa.lpSecurityDescriptor = 0; | |
2317 | sa.bInheritHandle = TRUE; | |
2318 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2319 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2320 | if (tty == INVALID_HANDLE_VALUE) | |
2321 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2322 | inferior_io_terminal, (unsigned) GetLastError ()); | |
2323 | else | |
2324 | { | |
2325 | si.hStdInput = tty; | |
2326 | si.hStdOutput = tty; | |
2327 | si.hStdError = tty; | |
2328 | si.dwFlags |= STARTF_USESTDHANDLES; | |
2329 | } | |
2330 | } | |
2becadee | 2331 | |
c93dbcba EZ |
2332 | /* CreateProcess takes the environment list as a null terminated set of |
2333 | strings (i.e. two nulls terminate the list). */ | |
2334 | ||
2335 | /* Get total size for env strings. */ | |
2336 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2337 | envlen += strlen (in_env[i]) + 1; | |
2338 | ||
2339 | envsize = sizeof (in_env[0]) * (i + 1); | |
2340 | env = (char **) alloca (envsize); | |
2341 | memcpy (env, in_env, envsize); | |
2342 | /* Windows programs expect the environment block to be sorted. */ | |
2343 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2344 | ||
2345 | w32env = alloca (envlen + 1); | |
2346 | ||
2347 | /* Copy env strings into new buffer. */ | |
2348 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2349 | { | |
2350 | strcpy (temp, env[i]); | |
2351 | temp += strlen (temp) + 1; | |
2352 | } | |
2353 | ||
2354 | /* Final nil string to terminate new env. */ | |
2355 | *temp = 0; | |
2356 | ||
dc05df57 | 2357 | windows_init_thread_list (); |
d0d0ab16 CV |
2358 | ret = CreateProcessA (0, |
2359 | args, /* command line */ | |
2360 | NULL, /* Security */ | |
2361 | NULL, /* thread */ | |
2362 | TRUE, /* inherit handles */ | |
2363 | flags, /* start flags */ | |
c93dbcba | 2364 | w32env, /* environment */ |
d0d0ab16 CV |
2365 | NULL, /* current directory */ |
2366 | &si, | |
2367 | &pi); | |
41b4aadc CF |
2368 | if (tty != INVALID_HANDLE_VALUE) |
2369 | CloseHandle (tty); | |
10325bc5 | 2370 | #endif |
2becadee | 2371 | |
24e60978 | 2372 | if (!ret) |
d50a0ce2 | 2373 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 2374 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 2375 | |
c1766e7d PM |
2376 | CloseHandle (pi.hThread); |
2377 | CloseHandle (pi.hProcess); | |
2378 | ||
dfe7f3ac CF |
2379 | if (useshell && shell[0] != '\0') |
2380 | saw_create = -1; | |
2381 | else | |
2382 | saw_create = 0; | |
2383 | ||
dc05df57 | 2384 | do_initial_windows_stuff (ops, pi.dwProcessId, 0); |
d3a09475 | 2385 | |
dc05df57 | 2386 | /* windows_continue (DBG_CONTINUE, -1); */ |
24e60978 SC |
2387 | } |
2388 | ||
2389 | static void | |
dc05df57 | 2390 | windows_mourn_inferior (struct target_ops *ops) |
24e60978 | 2391 | { |
dc05df57 | 2392 | (void) windows_continue (DBG_CONTINUE, -1); |
fa4ba8da | 2393 | i386_cleanup_dregs(); |
bf25528d CF |
2394 | if (open_process_used) |
2395 | { | |
2396 | CHECK (CloseHandle (current_process_handle)); | |
2397 | open_process_used = 0; | |
2398 | } | |
0795be10 | 2399 | unpush_target (ops); |
24e60978 SC |
2400 | generic_mourn_inferior (); |
2401 | } | |
2402 | ||
24e60978 | 2403 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 2404 | ^C on the controlling terminal. */ |
24e60978 | 2405 | |
b607efe7 | 2406 | static void |
dc05df57 | 2407 | windows_stop (ptid_t ptid) |
24e60978 | 2408 | { |
1ef980b9 | 2409 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2410 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2411 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2412 | } |
2413 | ||
44f38867 PA |
2414 | /* Helper for windows_xfer_partial that handles memory transfers. |
2415 | Arguments are like target_xfer_partial. */ | |
2416 | ||
2417 | static LONGEST | |
2418 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, | |
2419 | ULONGEST memaddr, LONGEST len) | |
24e60978 | 2420 | { |
5732a500 | 2421 | SIZE_T done = 0; |
44f38867 | 2422 | BOOL success; |
9e52adf9 | 2423 | DWORD lasterror = 0; |
44f38867 PA |
2424 | |
2425 | if (writebuf != NULL) | |
24e60978 | 2426 | { |
a2388568 PM |
2427 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
2428 | plongest (len), core_addr_to_string (memaddr))); | |
44f38867 PA |
2429 | success = WriteProcessMemory (current_process_handle, |
2430 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
2431 | len, &done); | |
9e52adf9 | 2432 | if (!success) |
7126d5c8 | 2433 | lasterror = GetLastError (); |
2b008701 | 2434 | FlushInstructionCache (current_process_handle, |
2c647436 | 2435 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2436 | } |
2437 | else | |
2438 | { | |
a2388568 PM |
2439 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
2440 | plongest (len), core_addr_to_string (memaddr))); | |
44f38867 PA |
2441 | success = ReadProcessMemory (current_process_handle, |
2442 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
2443 | len, &done); | |
9e52adf9 | 2444 | if (!success) |
7126d5c8 | 2445 | lasterror = GetLastError (); |
24e60978 | 2446 | } |
9e52adf9 PM |
2447 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
2448 | return done; | |
2449 | else | |
2450 | return success ? done : TARGET_XFER_E_IO; | |
24e60978 SC |
2451 | } |
2452 | ||
3ee6f623 | 2453 | static void |
7d85a9c0 | 2454 | windows_kill_inferior (struct target_ops *ops) |
24e60978 | 2455 | { |
3cee93ac CF |
2456 | CHECK (TerminateProcess (current_process_handle, 0)); |
2457 | ||
b5edcb45 ILT |
2458 | for (;;) |
2459 | { | |
dc05df57 | 2460 | if (!windows_continue (DBG_CONTINUE, -1)) |
b5edcb45 | 2461 | break; |
3cee93ac | 2462 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2463 | break; |
3cee93ac | 2464 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2465 | break; |
2466 | } | |
2467 | ||
581e13c1 | 2468 | target_mourn_inferior (); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
2469 | } |
2470 | ||
24e60978 | 2471 | static void |
dc05df57 | 2472 | windows_prepare_to_store (struct regcache *regcache) |
24e60978 | 2473 | { |
581e13c1 | 2474 | /* Do nothing, since we can store individual regs. */ |
24e60978 SC |
2475 | } |
2476 | ||
2477 | static int | |
dc05df57 | 2478 | windows_can_run (void) |
24e60978 SC |
2479 | { |
2480 | return 1; | |
2481 | } | |
2482 | ||
2483 | static void | |
460014f5 | 2484 | windows_close (void) |
24e60978 | 2485 | { |
dc05df57 | 2486 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
dfd4cc63 | 2487 | ptid_get_pid (inferior_ptid))); |
24e60978 | 2488 | } |
1ef980b9 | 2489 | |
581e13c1 | 2490 | /* Convert pid to printable format. */ |
3ee6f623 | 2491 | static char * |
117de6a9 | 2492 | windows_pid_to_str (struct target_ops *ops, ptid_t ptid) |
24e60978 | 2493 | { |
3ee6f623 | 2494 | static char buf[80]; |
3ee6f623 | 2495 | |
2dc38344 PA |
2496 | if (ptid_get_tid (ptid) != 0) |
2497 | { | |
2498 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2499 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2500 | return buf; | |
2501 | } | |
2502 | ||
2503 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2504 | } |
2505 | ||
de1b3c3d | 2506 | static LONGEST |
dc05df57 | 2507 | windows_xfer_shared_libraries (struct target_ops *ops, |
de1b3c3d PA |
2508 | enum target_object object, const char *annex, |
2509 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2510 | ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2511 | { |
de1b3c3d PA |
2512 | struct obstack obstack; |
2513 | const char *buf; | |
2514 | LONGEST len_avail; | |
3cb8e7f6 | 2515 | struct so_list *so; |
3cb8e7f6 | 2516 | |
de1b3c3d PA |
2517 | if (writebuf) |
2518 | return -1; | |
3cb8e7f6 | 2519 | |
de1b3c3d PA |
2520 | obstack_init (&obstack); |
2521 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2522 | for (so = solib_start.next; so; so = so->next) | |
581e13c1 MS |
2523 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) |
2524 | (uintptr_t) so->lm_info->load_addr, | |
f5656ead | 2525 | target_gdbarch (), &obstack); |
de1b3c3d | 2526 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2527 | |
de1b3c3d PA |
2528 | buf = obstack_finish (&obstack); |
2529 | len_avail = strlen (buf); | |
2530 | if (offset >= len_avail) | |
49dc7f4b PM |
2531 | len= 0; |
2532 | else | |
2533 | { | |
2534 | if (len > len_avail - offset) | |
2535 | len = len_avail - offset; | |
2536 | memcpy (readbuf, buf + offset, len); | |
2537 | } | |
3cb8e7f6 | 2538 | |
de1b3c3d PA |
2539 | obstack_free (&obstack, NULL); |
2540 | return len; | |
3cb8e7f6 CF |
2541 | } |
2542 | ||
de1b3c3d | 2543 | static LONGEST |
dc05df57 | 2544 | windows_xfer_partial (struct target_ops *ops, enum target_object object, |
de1b3c3d PA |
2545 | const char *annex, gdb_byte *readbuf, |
2546 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3cb8e7f6 | 2547 | { |
de1b3c3d | 2548 | switch (object) |
3cb8e7f6 | 2549 | { |
de1b3c3d | 2550 | case TARGET_OBJECT_MEMORY: |
44f38867 | 2551 | return windows_xfer_memory (readbuf, writebuf, offset, len); |
de1b3c3d PA |
2552 | |
2553 | case TARGET_OBJECT_LIBRARIES: | |
dc05df57 | 2554 | return windows_xfer_shared_libraries (ops, object, annex, readbuf, |
de1b3c3d | 2555 | writebuf, offset, len); |
3929abe9 | 2556 | |
de1b3c3d PA |
2557 | default: |
2558 | if (ops->beneath != NULL) | |
2559 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2560 | readbuf, writebuf, offset, len); | |
2561 | return -1; | |
3929abe9 | 2562 | } |
02c5aecd CF |
2563 | } |
2564 | ||
711e434b PM |
2565 | /* Provide thread local base, i.e. Thread Information Block address. |
2566 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
2567 | ||
2568 | static int | |
2569 | windows_get_tib_address (ptid_t ptid, CORE_ADDR *addr) | |
2570 | { | |
2571 | thread_info *th; | |
2572 | ||
2573 | th = thread_rec (ptid_get_tid (ptid), 0); | |
2574 | if (th == NULL) | |
2575 | return 0; | |
2576 | ||
2577 | if (addr != NULL) | |
2578 | *addr = th->thread_local_base; | |
2579 | ||
2580 | return 1; | |
2581 | } | |
2582 | ||
1e2f1c5c JB |
2583 | static ptid_t |
2584 | windows_get_ada_task_ptid (long lwp, long thread) | |
2585 | { | |
2586 | return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp); | |
2587 | } | |
2588 | ||
3ee6f623 | 2589 | static void |
dc05df57 | 2590 | init_windows_ops (void) |
3ee6f623 | 2591 | { |
dc05df57 CF |
2592 | windows_ops.to_shortname = "child"; |
2593 | windows_ops.to_longname = "Win32 child process"; | |
2594 | windows_ops.to_doc = "Win32 child process (started by the \"run\" command)."; | |
2595 | windows_ops.to_open = windows_open; | |
2596 | windows_ops.to_close = windows_close; | |
2597 | windows_ops.to_attach = windows_attach; | |
2598 | windows_ops.to_attach_no_wait = 1; | |
2599 | windows_ops.to_detach = windows_detach; | |
2600 | windows_ops.to_resume = windows_resume; | |
2601 | windows_ops.to_wait = windows_wait; | |
2602 | windows_ops.to_fetch_registers = windows_fetch_inferior_registers; | |
2603 | windows_ops.to_store_registers = windows_store_inferior_registers; | |
2604 | windows_ops.to_prepare_to_store = windows_prepare_to_store; | |
dc05df57 CF |
2605 | windows_ops.to_xfer_partial = windows_xfer_partial; |
2606 | windows_ops.to_files_info = windows_files_info; | |
2607 | windows_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
2608 | windows_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
2609 | windows_ops.to_terminal_init = terminal_init_inferior; | |
2610 | windows_ops.to_terminal_inferior = terminal_inferior; | |
2611 | windows_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
2612 | windows_ops.to_terminal_ours = terminal_ours; | |
2613 | windows_ops.to_terminal_save_ours = terminal_save_ours; | |
2614 | windows_ops.to_terminal_info = child_terminal_info; | |
2615 | windows_ops.to_kill = windows_kill_inferior; | |
2616 | windows_ops.to_create_inferior = windows_create_inferior; | |
2617 | windows_ops.to_mourn_inferior = windows_mourn_inferior; | |
2618 | windows_ops.to_can_run = windows_can_run; | |
2619 | windows_ops.to_thread_alive = windows_thread_alive; | |
2620 | windows_ops.to_pid_to_str = windows_pid_to_str; | |
2621 | windows_ops.to_stop = windows_stop; | |
2622 | windows_ops.to_stratum = process_stratum; | |
c35b1492 PA |
2623 | windows_ops.to_has_all_memory = default_child_has_all_memory; |
2624 | windows_ops.to_has_memory = default_child_has_memory; | |
2625 | windows_ops.to_has_stack = default_child_has_stack; | |
2626 | windows_ops.to_has_registers = default_child_has_registers; | |
2627 | windows_ops.to_has_execution = default_child_has_execution; | |
dc05df57 | 2628 | windows_ops.to_pid_to_exec_file = windows_pid_to_exec_file; |
1e2f1c5c | 2629 | windows_ops.to_get_ada_task_ptid = windows_get_ada_task_ptid; |
711e434b | 2630 | windows_ops.to_get_tib_address = windows_get_tib_address; |
9bb9e8ad | 2631 | |
5aca5a82 PM |
2632 | i386_use_watchpoints (&windows_ops); |
2633 | ||
9bb9e8ad PM |
2634 | i386_dr_low.set_control = cygwin_set_dr7; |
2635 | i386_dr_low.set_addr = cygwin_set_dr; | |
7b50312a | 2636 | i386_dr_low.get_addr = cygwin_get_dr; |
9bb9e8ad | 2637 | i386_dr_low.get_status = cygwin_get_dr6; |
7b50312a | 2638 | i386_dr_low.get_control = cygwin_get_dr7; |
9bb9e8ad PM |
2639 | |
2640 | /* i386_dr_low.debug_register_length field is set by | |
2641 | calling i386_set_debug_register_length function | |
2642 | in processor windows specific native file. */ | |
2643 | ||
dc05df57 | 2644 | windows_ops.to_magic = OPS_MAGIC; |
c719b714 | 2645 | } |
24e60978 | 2646 | |
3929abe9 | 2647 | static void |
dc05df57 | 2648 | set_windows_aliases (char *argv0) |
3929abe9 CF |
2649 | { |
2650 | add_info_alias ("dll", "sharedlibrary", 1); | |
2651 | } | |
2652 | ||
d603d4b3 JK |
2653 | /* -Wmissing-prototypes */ |
2654 | extern initialize_file_ftype _initialize_windows_nat; | |
2655 | ||
24e60978 | 2656 | void |
dc05df57 | 2657 | _initialize_windows_nat (void) |
24e60978 | 2658 | { |
fa58ee11 EZ |
2659 | struct cmd_list_element *c; |
2660 | ||
dc05df57 | 2661 | init_windows_ops (); |
1ef980b9 | 2662 | |
d0d0ab16 CV |
2663 | #ifdef __CYGWIN__ |
2664 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
2665 | #endif | |
2666 | ||
fa58ee11 | 2667 | c = add_com ("dll-symbols", class_files, dll_symbol_command, |
1bedd215 | 2668 | _("Load dll library symbols from FILE.")); |
5ba2abeb | 2669 | set_cmd_completer (c, filename_completer); |
450005e7 CF |
2670 | |
2671 | add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1); | |
2672 | ||
70992597 PM |
2673 | add_com_alias ("add-shared-symbol-files", "dll-symbols", class_alias, 1); |
2674 | ||
2675 | add_com_alias ("assf", "dll-symbols", class_alias, 1); | |
2676 | ||
10325bc5 | 2677 | #ifdef __CYGWIN__ |
5bf193a2 AC |
2678 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
2679 | Set use of shell to start subprocess."), _("\ | |
2680 | Show use of shell to start subprocess."), NULL, | |
2681 | NULL, | |
2682 | NULL, /* FIXME: i18n: */ | |
2683 | &setlist, &showlist); | |
2684 | ||
581e13c1 MS |
2685 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
2686 | &cygwin_exceptions, _("\ | |
09280ddf CF |
2687 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
2688 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
2689 | NULL, | |
2690 | NULL, /* FIXME: i18n: */ | |
2691 | &setlist, &showlist); | |
10325bc5 | 2692 | #endif |
09280ddf | 2693 | |
5bf193a2 AC |
2694 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
2695 | Set creation of new console when creating child process."), _("\ | |
2696 | Show creation of new console when creating child process."), NULL, | |
2697 | NULL, | |
2698 | NULL, /* FIXME: i18n: */ | |
2699 | &setlist, &showlist); | |
2700 | ||
2701 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
2702 | Set creation of new group when creating child process."), _("\ | |
2703 | Show creation of new group when creating child process."), NULL, | |
2704 | NULL, | |
2705 | NULL, /* FIXME: i18n: */ | |
2706 | &setlist, &showlist); | |
2707 | ||
2708 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
2709 | Set whether to display execution in child process."), _("\ | |
2710 | Show whether to display execution in child process."), NULL, | |
2711 | NULL, | |
2712 | NULL, /* FIXME: i18n: */ | |
2713 | &setlist, &showlist); | |
2714 | ||
2715 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
2716 | Set whether to display kernel events in child process."), _("\ | |
2717 | Show whether to display kernel events in child process."), NULL, | |
2718 | NULL, | |
2719 | NULL, /* FIXME: i18n: */ | |
2720 | &setlist, &showlist); | |
2721 | ||
2722 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
2723 | Set whether to display memory accesses in child process."), _("\ | |
2724 | Show whether to display memory accesses in child process."), NULL, | |
2725 | NULL, | |
2726 | NULL, /* FIXME: i18n: */ | |
2727 | &setlist, &showlist); | |
2728 | ||
2729 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
2730 | &debug_exceptions, _("\ | |
2731 | Set whether to display kernel exceptions in child process."), _("\ | |
2732 | Show whether to display kernel exceptions in child process."), NULL, | |
2733 | NULL, | |
2734 | NULL, /* FIXME: i18n: */ | |
2735 | &setlist, &showlist); | |
1ef980b9 | 2736 | |
711e434b | 2737 | init_w32_command_list (); |
c1748f97 PM |
2738 | |
2739 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 2740 | _("Display selectors infos."), |
c1748f97 | 2741 | &info_w32_cmdlist); |
dc05df57 CF |
2742 | add_target (&windows_ops); |
2743 | deprecated_init_ui_hook = set_windows_aliases; | |
24e60978 | 2744 | } |
3cee93ac | 2745 | |
fa4ba8da PM |
2746 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
2747 | ||
2748 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
2749 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 2750 | actually set up when windows_continue is called. */ |
9bb9e8ad | 2751 | static void |
fa4ba8da PM |
2752 | cygwin_set_dr (int i, CORE_ADDR addr) |
2753 | { | |
2754 | if (i < 0 || i > 3) | |
2755 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2756 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 2757 | dr[i] = addr; |
fa4ba8da PM |
2758 | debug_registers_changed = 1; |
2759 | debug_registers_used = 1; | |
2760 | } | |
2761 | ||
2762 | /* Pass the value VAL to the inferior in the DR7 debug control | |
2763 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 2764 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
2765 | static void |
2766 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 2767 | { |
9bb9e8ad | 2768 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
2769 | debug_registers_changed = 1; |
2770 | debug_registers_used = 1; | |
2771 | } | |
2772 | ||
7b50312a PA |
2773 | /* Get the value of debug register I from the inferior. */ |
2774 | ||
2775 | static CORE_ADDR | |
2776 | cygwin_get_dr (int i) | |
2777 | { | |
2778 | return dr[i]; | |
2779 | } | |
2780 | ||
fa4ba8da PM |
2781 | /* Get the value of the DR6 debug status register from the inferior. |
2782 | Here we just return the value stored in dr[6] | |
2783 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 2784 | static unsigned long |
fa4ba8da PM |
2785 | cygwin_get_dr6 (void) |
2786 | { | |
9bb9e8ad | 2787 | return (unsigned long) dr[6]; |
fa4ba8da PM |
2788 | } |
2789 | ||
7b50312a PA |
2790 | /* Get the value of the DR7 debug status register from the inferior. |
2791 | Here we just return the value stored in dr[7] by the last call to | |
2792 | thread_rec for current_event.dwThreadId id. */ | |
2793 | ||
2794 | static unsigned long | |
2795 | cygwin_get_dr7 (void) | |
2796 | { | |
2797 | return (unsigned long) dr[7]; | |
2798 | } | |
2799 | ||
2dc38344 | 2800 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 2801 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 2802 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
3cee93ac | 2803 | static int |
28439f5e | 2804 | windows_thread_alive (struct target_ops *ops, ptid_t ptid) |
3cee93ac | 2805 | { |
2dc38344 PA |
2806 | int tid; |
2807 | ||
2808 | gdb_assert (ptid_get_tid (ptid) != 0); | |
2809 | tid = ptid_get_tid (ptid); | |
39f77062 | 2810 | |
581e13c1 MS |
2811 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 |
2812 | ? FALSE : TRUE; | |
3cee93ac CF |
2813 | } |
2814 | ||
d603d4b3 JK |
2815 | /* -Wmissing-prototypes */ |
2816 | extern initialize_file_ftype _initialize_check_for_gdb_ini; | |
2817 | ||
2a3d5645 CF |
2818 | void |
2819 | _initialize_check_for_gdb_ini (void) | |
2820 | { | |
2821 | char *homedir; | |
2822 | if (inhibit_gdbinit) | |
2823 | return; | |
2824 | ||
2825 | homedir = getenv ("HOME"); | |
2826 | if (homedir) | |
2827 | { | |
2828 | char *p; | |
2829 | char *oldini = (char *) alloca (strlen (homedir) + | |
2830 | sizeof ("/gdb.ini")); | |
2831 | strcpy (oldini, homedir); | |
2832 | p = strchr (oldini, '\0'); | |
0ba1096a | 2833 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
2834 | *p++ = '/'; |
2835 | strcpy (p, "gdb.ini"); | |
2836 | if (access (oldini, 0) == 0) | |
2837 | { | |
2838 | int len = strlen (oldini); | |
2839 | char *newini = alloca (len + 1); | |
08850b56 PM |
2840 | |
2841 | xsnprintf (newini, len + 1, "%.*s.gdbinit", | |
2842 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); | |
8a3fe4f8 | 2843 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
2844 | } |
2845 | } | |
2846 | } | |
33605d39 | 2847 | |
2b008701 | 2848 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 2849 | these functions could not be found. */ |
2b008701 CF |
2850 | static BOOL WINAPI |
2851 | bad_DebugActiveProcessStop (DWORD w) | |
2852 | { | |
2853 | return FALSE; | |
2854 | } | |
2855 | static BOOL WINAPI | |
2856 | bad_DebugBreakProcess (HANDLE w) | |
2857 | { | |
2858 | return FALSE; | |
2859 | } | |
2860 | static BOOL WINAPI | |
2861 | bad_DebugSetProcessKillOnExit (BOOL w) | |
2862 | { | |
2863 | return FALSE; | |
2864 | } | |
2865 | static BOOL WINAPI | |
2866 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
2867 | { | |
2868 | return FALSE; | |
2869 | } | |
b3c613f2 CF |
2870 | |
2871 | #ifdef __USEWIDE | |
2b008701 | 2872 | static DWORD WINAPI |
b3c613f2 | 2873 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
2874 | { |
2875 | return 0; | |
2876 | } | |
d0d0ab16 CV |
2877 | #else |
2878 | static DWORD WINAPI | |
b3c613f2 | 2879 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
2880 | { |
2881 | return 0; | |
2882 | } | |
2883 | #endif | |
b3c613f2 | 2884 | |
2b008701 CF |
2885 | static BOOL WINAPI |
2886 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
2887 | { | |
2888 | return FALSE; | |
2889 | } | |
2890 | ||
418c6cb3 CF |
2891 | static BOOL WINAPI |
2892 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
2893 | { | |
2894 | return FALSE; | |
2895 | } | |
2896 | ||
cd44747c PM |
2897 | static BOOL WINAPI |
2898 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
2899 | { | |
2900 | f->nFont = 0; | |
2901 | return 1; | |
2902 | } | |
2903 | static COORD WINAPI | |
2904 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
2905 | { | |
2906 | COORD size; | |
2907 | size.X = 8; | |
2908 | size.Y = 12; | |
2909 | return size; | |
2910 | } | |
2911 | ||
d603d4b3 JK |
2912 | /* -Wmissing-prototypes */ |
2913 | extern initialize_file_ftype _initialize_loadable; | |
2914 | ||
2b008701 | 2915 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 2916 | of Windows. */ |
d603d4b3 | 2917 | |
33605d39 | 2918 | void |
2b008701 | 2919 | _initialize_loadable (void) |
33605d39 | 2920 | { |
2b008701 CF |
2921 | HMODULE hm = NULL; |
2922 | ||
2923 | hm = LoadLibrary ("kernel32.dll"); | |
2924 | if (hm) | |
33605d39 | 2925 | { |
b3c613f2 | 2926 | DebugActiveProcessStop = (void *) |
2b008701 | 2927 | GetProcAddress (hm, "DebugActiveProcessStop"); |
b3c613f2 | 2928 | DebugBreakProcess = (void *) |
2b008701 | 2929 | GetProcAddress (hm, "DebugBreakProcess"); |
b3c613f2 | 2930 | DebugSetProcessKillOnExit = (void *) |
2b008701 | 2931 | GetProcAddress (hm, "DebugSetProcessKillOnExit"); |
cd44747c PM |
2932 | GetConsoleFontSize = (void *) |
2933 | GetProcAddress (hm, "GetConsoleFontSize"); | |
2934 | GetCurrentConsoleFont = (void *) | |
2935 | GetProcAddress (hm, "GetCurrentConsoleFont"); | |
2b008701 | 2936 | } |
33605d39 | 2937 | |
2b008701 | 2938 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 2939 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
2940 | if (!DebugBreakProcess) |
2941 | DebugBreakProcess = bad_DebugBreakProcess; | |
2942 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 2943 | { |
b3c613f2 CF |
2944 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
2945 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 2946 | } |
cd44747c PM |
2947 | if (!GetConsoleFontSize) |
2948 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
2949 | if (!GetCurrentConsoleFont) | |
2950 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 2951 | |
2b008701 | 2952 | /* Load optional functions used for retrieving filename information |
581e13c1 | 2953 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
2954 | hm = LoadLibrary ("psapi.dll"); |
2955 | if (hm) | |
2956 | { | |
b3c613f2 | 2957 | EnumProcessModules = (void *) |
2b008701 | 2958 | GetProcAddress (hm, "EnumProcessModules"); |
b3c613f2 | 2959 | GetModuleInformation = (void *) |
2b008701 | 2960 | GetProcAddress (hm, "GetModuleInformation"); |
b3c613f2 CF |
2961 | GetModuleFileNameEx = (void *) |
2962 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
2963 | } |
2964 | ||
b3c613f2 | 2965 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
2966 | { |
2967 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 2968 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
2969 | EnumProcessModules = bad_EnumProcessModules; |
2970 | GetModuleInformation = bad_GetModuleInformation; | |
2971 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
2972 | /* This will probably fail on Windows 9x/Me. Let the user know |
2973 | that we're missing some functionality. */ | |
2974 | warning(_("\ | |
2975 | cannot automatically find executable file or library to read symbols.\n\ | |
2976 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
2977 | } |
2978 | ||
2979 | hm = LoadLibrary ("advapi32.dll"); | |
2980 | if (hm) | |
2981 | { | |
b3c613f2 CF |
2982 | OpenProcessToken = (void *) GetProcAddress (hm, "OpenProcessToken"); |
2983 | LookupPrivilegeValueA = (void *) | |
418c6cb3 | 2984 | GetProcAddress (hm, "LookupPrivilegeValueA"); |
b3c613f2 | 2985 | AdjustTokenPrivileges = (void *) |
418c6cb3 CF |
2986 | GetProcAddress (hm, "AdjustTokenPrivileges"); |
2987 | /* Only need to set one of these since if OpenProcessToken fails nothing | |
581e13c1 MS |
2988 | else is needed. */ |
2989 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
2990 | || !AdjustTokenPrivileges) | |
b3c613f2 | 2991 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 2992 | } |
33605d39 | 2993 | } |