Commit | Line | Data |
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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
61baf725 | 3 | Copyright (C) 1995-2017 Free Software Foundation, Inc. |
0a65a603 | 4 | |
e6433c28 | 5 | Contributed by Cygnus Solutions, A Red Hat Company. |
e88c49c3 | 6 | |
24e60978 SC |
7 | This file is part of GDB. |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
24e60978 SC |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
a9762ec7 | 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
24e60978 SC |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
24e60978 | 21 | |
dfe7f3ac | 22 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
24e60978 SC |
23 | |
24 | #include "defs.h" | |
25 | #include "frame.h" /* required by inferior.h */ | |
26 | #include "inferior.h" | |
45741a9c | 27 | #include "infrun.h" |
24e60978 | 28 | #include "target.h" |
24e60978 SC |
29 | #include "gdbcore.h" |
30 | #include "command.h" | |
fa58ee11 | 31 | #include "completer.h" |
4e052eda | 32 | #include "regcache.h" |
2a3d5645 | 33 | #include "top.h" |
403d9909 CF |
34 | #include <signal.h> |
35 | #include <sys/types.h> | |
36 | #include <fcntl.h> | |
403d9909 CF |
37 | #include <windows.h> |
38 | #include <imagehlp.h> | |
2b008701 | 39 | #include <psapi.h> |
10325bc5 | 40 | #ifdef __CYGWIN__ |
b7ff339d | 41 | #include <wchar.h> |
403d9909 | 42 | #include <sys/cygwin.h> |
b7ff339d | 43 | #include <cygwin/version.h> |
10325bc5 | 44 | #endif |
a1b85d28 | 45 | #include <algorithm> |
cad9cd60 | 46 | |
24e60978 | 47 | #include "buildsym.h" |
0ba1096a | 48 | #include "filenames.h" |
1ef980b9 SC |
49 | #include "symfile.h" |
50 | #include "objfiles.h" | |
92107356 | 51 | #include "gdb_bfd.h" |
de1b3c3d | 52 | #include "gdb_obstack.h" |
fdfa3315 | 53 | #include "gdbthread.h" |
24e60978 | 54 | #include "gdbcmd.h" |
1e37c281 | 55 | #include <unistd.h> |
4646aa9d | 56 | #include "exec.h" |
3ee6f623 | 57 | #include "solist.h" |
3cb8e7f6 | 58 | #include "solib.h" |
de1b3c3d | 59 | #include "xml-support.h" |
463888ab | 60 | #include "inttypes.h" |
24e60978 | 61 | |
6c7de422 MK |
62 | #include "i386-tdep.h" |
63 | #include "i387-tdep.h" | |
64 | ||
31b060a2 CF |
65 | #include "windows-tdep.h" |
66 | #include "windows-nat.h" | |
df7e5265 | 67 | #include "x86-nat.h" |
ecc13e53 | 68 | #include "complaints.h" |
51a9c8c5 | 69 | #include "inf-child.h" |
d092c5a2 | 70 | #include "gdb_tilde_expand.h" |
de1b3c3d | 71 | |
418c6cb3 | 72 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
73 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
74 | #define DebugBreakProcess dyn_DebugBreakProcess | |
75 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
76 | #define EnumProcessModules dyn_EnumProcessModules | |
2b008701 | 77 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
78 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
79 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
80 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
81 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
2b008701 | 82 | |
43499ea3 PA |
83 | typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL, |
84 | PTOKEN_PRIVILEGES, | |
85 | DWORD, PTOKEN_PRIVILEGES, | |
86 | PDWORD); | |
87 | static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges; | |
88 | ||
89 | typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD); | |
90 | static DebugActiveProcessStop_ftype *DebugActiveProcessStop; | |
91 | ||
92 | typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE); | |
93 | static DebugBreakProcess_ftype *DebugBreakProcess; | |
94 | ||
95 | typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL); | |
96 | static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit; | |
97 | ||
98 | typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD, | |
99 | LPDWORD); | |
100 | static EnumProcessModules_ftype *EnumProcessModules; | |
101 | ||
102 | typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE, | |
103 | LPMODULEINFO, DWORD); | |
104 | static GetModuleInformation_ftype *GetModuleInformation; | |
105 | ||
106 | typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID); | |
107 | static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA; | |
108 | ||
109 | typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE); | |
110 | static OpenProcessToken_ftype *OpenProcessToken; | |
111 | ||
112 | typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL, | |
113 | CONSOLE_FONT_INFO *); | |
114 | static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont; | |
115 | ||
116 | typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD); | |
117 | static GetConsoleFontSize_ftype *GetConsoleFontSize; | |
2b008701 | 118 | |
b3c613f2 CF |
119 | #undef STARTUPINFO |
120 | #undef CreateProcess | |
121 | #undef GetModuleFileNameEx | |
122 | ||
123 | #ifndef __CYGWIN__ | |
124 | # define __PMAX (MAX_PATH + 1) | |
43499ea3 PA |
125 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD); |
126 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
127 | # define STARTUPINFO STARTUPINFOA |
128 | # define CreateProcess CreateProcessA | |
129 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
130 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
131 | #else | |
132 | # define __PMAX PATH_MAX | |
581e13c1 | 133 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
134 | static CORE_ADDR cygwin_load_start; |
135 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
136 | # define __USEWIDE |
137 | typedef wchar_t cygwin_buf_t; | |
43499ea3 PA |
138 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, |
139 | LPWSTR, DWORD); | |
140 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
141 | # define STARTUPINFO STARTUPINFOW |
142 | # define CreateProcess CreateProcessW | |
143 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
144 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 145 | #endif |
a244bdca | 146 | |
581e13c1 MS |
147 | static int have_saved_context; /* True if we've saved context from a |
148 | cygwin signal. */ | |
149 | static CONTEXT saved_context; /* Containes the saved context from a | |
150 | cygwin signal. */ | |
a244bdca | 151 | |
0714f9bf SS |
152 | /* If we're not using the old Cygwin header file set, define the |
153 | following which never should have been in the generic Win32 API | |
581e13c1 | 154 | headers in the first place since they were our own invention... */ |
0714f9bf | 155 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 156 | enum |
8e860359 CF |
157 | { |
158 | FLAG_TRACE_BIT = 0x100, | |
8e860359 | 159 | }; |
0714f9bf SS |
160 | #endif |
161 | ||
5851ab76 JB |
162 | #ifndef CONTEXT_EXTENDED_REGISTERS |
163 | /* This macro is only defined on ia32. It only makes sense on this target, | |
164 | so define it as zero if not already defined. */ | |
165 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
166 | #endif | |
167 | ||
f0666312 JT |
168 | #define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \ |
169 | | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \ | |
170 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 171 | |
41b4aadc | 172 | static uintptr_t dr[8]; |
87a45c96 CF |
173 | static int debug_registers_changed; |
174 | static int debug_registers_used; | |
16d905e2 CF |
175 | |
176 | static int windows_initialization_done; | |
6537bb24 | 177 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 178 | |
24cdb46e РИ |
179 | /* The exception thrown by a program to tell the debugger the name of |
180 | a thread. The exception record contains an ID of a thread and a | |
181 | name to give it. This exception has no documented name, but MSDN | |
182 | dubs it "MS_VC_EXCEPTION" in one code example. */ | |
183 | #define MS_VC_EXCEPTION 0x406d1388 | |
184 | ||
185 | typedef enum | |
186 | { | |
187 | HANDLE_EXCEPTION_UNHANDLED = 0, | |
188 | HANDLE_EXCEPTION_HANDLED, | |
189 | HANDLE_EXCEPTION_IGNORED | |
190 | } handle_exception_result; | |
191 | ||
3cee93ac | 192 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 193 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
194 | #ifndef _CYGWIN_SIGNAL_STRING |
195 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
196 | #endif | |
3cee93ac | 197 | |
29fe111d | 198 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 199 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
200 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
201 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
202 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 203 | |
bfedc46a | 204 | static void windows_interrupt (struct target_ops *self, ptid_t); |
02529b48 | 205 | static int windows_thread_alive (struct target_ops *, ptid_t); |
7d85a9c0 | 206 | static void windows_kill_inferior (struct target_ops *); |
3cee93ac | 207 | |
9bb9e8ad PM |
208 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
209 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 210 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 211 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 212 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 213 | |
a493e3e2 | 214 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
581e13c1 | 215 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 216 | |
3cee93ac | 217 | /* Thread information structure used to track information that is |
6537bb24 | 218 | not available in gdb's thread structure. */ |
876d1cd7 | 219 | typedef struct windows_thread_info_struct |
3a4b77d8 | 220 | { |
876d1cd7 | 221 | struct windows_thread_info_struct *next; |
3a4b77d8 JM |
222 | DWORD id; |
223 | HANDLE h; | |
711e434b | 224 | CORE_ADDR thread_local_base; |
3a4b77d8 | 225 | char *name; |
6537bb24 | 226 | int suspended; |
3ade5333 | 227 | int reload_context; |
3a4b77d8 | 228 | CONTEXT context; |
1e37c281 | 229 | STACKFRAME sf; |
8e860359 | 230 | } |
876d1cd7 | 231 | windows_thread_info; |
1e37c281 | 232 | |
876d1cd7 | 233 | static windows_thread_info thread_head; |
24e60978 | 234 | |
581e13c1 | 235 | /* The process and thread handles for the above context. */ |
24e60978 | 236 | |
3cee93ac CF |
237 | static DEBUG_EVENT current_event; /* The current debug event from |
238 | WaitForDebugEvent */ | |
239 | static HANDLE current_process_handle; /* Currently executing process */ | |
876d1cd7 | 240 | static windows_thread_info *current_thread; /* Info on currently selected thread */ |
349b409f | 241 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 | 242 | |
581e13c1 | 243 | /* Counts of things. */ |
24e60978 SC |
244 | static int exception_count = 0; |
245 | static int event_count = 0; | |
dfe7f3ac | 246 | static int saw_create; |
bf25528d | 247 | static int open_process_used = 0; |
24e60978 | 248 | |
581e13c1 | 249 | /* User options. */ |
24e60978 | 250 | static int new_console = 0; |
10325bc5 | 251 | #ifdef __CYGWIN__ |
09280ddf | 252 | static int cygwin_exceptions = 0; |
10325bc5 | 253 | #endif |
1e37c281 | 254 | static int new_group = 1; |
dfe7f3ac CF |
255 | static int debug_exec = 0; /* show execution */ |
256 | static int debug_events = 0; /* show events from kernel */ | |
257 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 258 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
259 | static int useshell = 0; /* use shell for subprocesses */ |
260 | ||
7e63b4e4 | 261 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 262 | in the windows exception context vector. |
24e60978 | 263 | |
3cee93ac | 264 | It also contains the bit mask needed to load the register in question. |
24e60978 | 265 | |
7e63b4e4 JB |
266 | The contents of this table can only be computed by the units |
267 | that provide CPU-specific support for Windows native debugging. | |
268 | These units should set the table by calling | |
dc05df57 | 269 | windows_set_context_register_offsets. |
7e63b4e4 | 270 | |
24e60978 SC |
271 | One day we could read a reg, we could inspect the context we |
272 | already have loaded, if it doesn't have the bit set that we need, | |
273 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 274 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
275 | write a register, first we have to ensure that the context contains |
276 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 277 | out bit. */ |
24e60978 | 278 | |
7e63b4e4 | 279 | static const int *mappings; |
d3a09475 | 280 | |
d40dc7a8 JB |
281 | /* The function to use in order to determine whether a register is |
282 | a segment register or not. */ | |
283 | static segment_register_p_ftype *segment_register_p; | |
284 | ||
24e60978 | 285 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 286 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
287 | |
288 | struct xlate_exception | |
289 | { | |
290 | int them; | |
2ea28649 | 291 | enum gdb_signal us; |
24e60978 SC |
292 | }; |
293 | ||
24e60978 SC |
294 | static const struct xlate_exception |
295 | xlate[] = | |
296 | { | |
a493e3e2 PA |
297 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
298 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
299 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
300 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
301 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
302 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE}, | |
56db1d67 | 303 | {-1, GDB_SIGNAL_UNKNOWN}}; |
24e60978 | 304 | |
7e63b4e4 JB |
305 | /* Set the MAPPINGS static global to OFFSETS. |
306 | See the description of MAPPINGS for more details. */ | |
307 | ||
308 | void | |
dc05df57 | 309 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
310 | { |
311 | mappings = offsets; | |
312 | } | |
313 | ||
d40dc7a8 JB |
314 | /* See windows-nat.h. */ |
315 | ||
316 | void | |
317 | windows_set_segment_register_p (segment_register_p_ftype *fun) | |
318 | { | |
319 | segment_register_p = fun; | |
320 | } | |
321 | ||
fa4ba8da PM |
322 | static void |
323 | check (BOOL ok, const char *file, int line) | |
324 | { | |
325 | if (!ok) | |
d50a0ce2 CV |
326 | printf_filtered ("error return %s:%d was %u\n", file, line, |
327 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
328 | } |
329 | ||
6537bb24 PA |
330 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
331 | then also retrieve the context for this thread. If GET_CONTEXT is | |
332 | negative, then don't suspend the thread. */ | |
876d1cd7 | 333 | static windows_thread_info * |
3cee93ac | 334 | thread_rec (DWORD id, int get_context) |
24e60978 | 335 | { |
876d1cd7 | 336 | windows_thread_info *th; |
3cee93ac | 337 | |
3a4b77d8 | 338 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
339 | if (th->id == id) |
340 | { | |
6537bb24 | 341 | if (!th->suspended && get_context) |
3cee93ac | 342 | { |
8a892701 | 343 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
344 | { |
345 | if (SuspendThread (th->h) == (DWORD) -1) | |
346 | { | |
347 | DWORD err = GetLastError (); | |
22128028 | 348 | |
17617f2d EZ |
349 | /* We get Access Denied (5) when trying to suspend |
350 | threads that Windows started on behalf of the | |
351 | debuggee, usually when those threads are just | |
5d9c55d3 JT |
352 | about to exit. |
353 | We can get Invalid Handle (6) if the main thread | |
354 | has exited. */ | |
355 | if (err != ERROR_INVALID_HANDLE | |
356 | && err != ERROR_ACCESS_DENIED) | |
17617f2d EZ |
357 | warning (_("SuspendThread (tid=0x%x) failed." |
358 | " (winerr %u)"), | |
359 | (unsigned) id, (unsigned) err); | |
360 | th->suspended = -1; | |
6537bb24 | 361 | } |
17617f2d EZ |
362 | else |
363 | th->suspended = 1; | |
6537bb24 | 364 | } |
3cee93ac | 365 | else if (get_context < 0) |
6537bb24 | 366 | th->suspended = -1; |
3ade5333 | 367 | th->reload_context = 1; |
3cee93ac CF |
368 | } |
369 | return th; | |
370 | } | |
371 | ||
372 | return NULL; | |
373 | } | |
374 | ||
2dc38344 | 375 | /* Add a thread to the thread list. */ |
876d1cd7 | 376 | static windows_thread_info * |
711e434b | 377 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb) |
3cee93ac | 378 | { |
876d1cd7 | 379 | windows_thread_info *th; |
2dc38344 PA |
380 | DWORD id; |
381 | ||
382 | gdb_assert (ptid_get_tid (ptid) != 0); | |
383 | ||
384 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
385 | |
386 | if ((th = thread_rec (id, FALSE))) | |
387 | return th; | |
388 | ||
876d1cd7 | 389 | th = XCNEW (windows_thread_info); |
3cee93ac CF |
390 | th->id = id; |
391 | th->h = h; | |
711e434b | 392 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
393 | th->next = thread_head.next; |
394 | thread_head.next = th; | |
2dc38344 PA |
395 | add_thread (ptid); |
396 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
397 | if (debug_registers_used) |
398 | { | |
399 | /* Only change the value of the debug registers. */ | |
400 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
401 | CHECK (GetThreadContext (th->h, &th->context)); | |
402 | th->context.Dr0 = dr[0]; | |
403 | th->context.Dr1 = dr[1]; | |
404 | th->context.Dr2 = dr[2]; | |
405 | th->context.Dr3 = dr[3]; | |
6537bb24 | 406 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
407 | th->context.Dr7 = dr[7]; |
408 | CHECK (SetThreadContext (th->h, &th->context)); | |
409 | th->context.ContextFlags = 0; | |
410 | } | |
3cee93ac | 411 | return th; |
24e60978 SC |
412 | } |
413 | ||
26c4b26f | 414 | /* Clear out any old thread list and reinitialize it to a |
581e13c1 | 415 | pristine state. */ |
24e60978 | 416 | static void |
dc05df57 | 417 | windows_init_thread_list (void) |
24e60978 | 418 | { |
876d1cd7 | 419 | windows_thread_info *th = &thread_head; |
3cee93ac | 420 | |
dc05df57 | 421 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
422 | init_thread_list (); |
423 | while (th->next != NULL) | |
24e60978 | 424 | { |
876d1cd7 | 425 | windows_thread_info *here = th->next; |
3cee93ac | 426 | th->next = here->next; |
b8c9b27d | 427 | xfree (here); |
24e60978 | 428 | } |
059198c1 | 429 | thread_head.next = NULL; |
3cee93ac CF |
430 | } |
431 | ||
581e13c1 | 432 | /* Delete a thread from the list of threads. */ |
3cee93ac | 433 | static void |
e0ea48a0 | 434 | windows_delete_thread (ptid_t ptid, DWORD exit_code) |
3cee93ac | 435 | { |
876d1cd7 | 436 | windows_thread_info *th; |
2dc38344 PA |
437 | DWORD id; |
438 | ||
439 | gdb_assert (ptid_get_tid (ptid) != 0); | |
440 | ||
441 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
442 | |
443 | if (info_verbose) | |
2dc38344 | 444 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
e0ea48a0 EZ |
445 | else if (print_thread_events && id != main_thread_id) |
446 | printf_unfiltered (_("[%s exited with code %u]\n"), | |
564eac42 | 447 | target_pid_to_str (ptid), (unsigned) exit_code); |
2dc38344 | 448 | delete_thread (ptid); |
3cee93ac CF |
449 | |
450 | for (th = &thread_head; | |
451 | th->next != NULL && th->next->id != id; | |
452 | th = th->next) | |
453 | continue; | |
454 | ||
455 | if (th->next != NULL) | |
24e60978 | 456 | { |
876d1cd7 | 457 | windows_thread_info *here = th->next; |
3cee93ac | 458 | th->next = here->next; |
24cdb46e | 459 | xfree (here->name); |
b8c9b27d | 460 | xfree (here); |
24e60978 SC |
461 | } |
462 | } | |
463 | ||
3cee93ac | 464 | static void |
3de88e9a SM |
465 | do_windows_fetch_inferior_registers (struct regcache *regcache, |
466 | windows_thread_info *th, int r) | |
24e60978 | 467 | { |
3de88e9a | 468 | char *context_offset = ((char *) &th->context) + mappings[r]; |
20a6ec49 MD |
469 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
470 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1e37c281 | 471 | long l; |
6c7de422 | 472 | |
3de88e9a | 473 | if (th->reload_context) |
3ade5333 | 474 | { |
f20c58f5 | 475 | #ifdef __CYGWIN__ |
a244bdca CF |
476 | if (have_saved_context) |
477 | { | |
581e13c1 MS |
478 | /* Lie about where the program actually is stopped since |
479 | cygwin has informed us that we should consider the signal | |
480 | to have occurred at another location which is stored in | |
481 | "saved_context. */ | |
3de88e9a | 482 | memcpy (&th->context, &saved_context, |
581e13c1 | 483 | __COPY_CONTEXT_SIZE); |
a244bdca CF |
484 | have_saved_context = 0; |
485 | } | |
486 | else | |
cb832706 | 487 | #endif |
a244bdca | 488 | { |
a244bdca | 489 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 490 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 491 | /* Copy dr values from that thread. |
581e13c1 MS |
492 | But only if there were not modified since last stop. |
493 | PR gdb/2388 */ | |
88616312 PM |
494 | if (!debug_registers_changed) |
495 | { | |
496 | dr[0] = th->context.Dr0; | |
497 | dr[1] = th->context.Dr1; | |
498 | dr[2] = th->context.Dr2; | |
499 | dr[3] = th->context.Dr3; | |
500 | dr[6] = th->context.Dr6; | |
501 | dr[7] = th->context.Dr7; | |
502 | } | |
a244bdca | 503 | } |
3de88e9a | 504 | th->reload_context = 0; |
3ade5333 CF |
505 | } |
506 | ||
20a6ec49 | 507 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 508 | { |
8e860359 | 509 | l = *((long *) context_offset) & 0xffff; |
56be3814 | 510 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 511 | } |
20a6ec49 | 512 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 513 | { |
8e860359 | 514 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
56be3814 | 515 | regcache_raw_supply (regcache, r, (char *) &l); |
1e37c281 | 516 | } |
d40dc7a8 JB |
517 | else if (segment_register_p (r)) |
518 | { | |
519 | /* GDB treats segment registers as 32bit registers, but they are | |
520 | in fact only 16 bits long. Make sure we do not read extra | |
521 | bits from our source buffer. */ | |
522 | l = *((long *) context_offset) & 0xffff; | |
523 | regcache_raw_supply (regcache, r, (char *) &l); | |
524 | } | |
1e37c281 | 525 | else if (r >= 0) |
56be3814 | 526 | regcache_raw_supply (regcache, r, context_offset); |
3cee93ac | 527 | else |
24e60978 | 528 | { |
20a6ec49 | 529 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
3de88e9a | 530 | do_windows_fetch_inferior_registers (regcache, th, r); |
24e60978 | 531 | } |
3cee93ac CF |
532 | } |
533 | ||
534 | static void | |
28439f5e PA |
535 | windows_fetch_inferior_registers (struct target_ops *ops, |
536 | struct regcache *regcache, int r) | |
3cee93ac | 537 | { |
3de88e9a SM |
538 | DWORD pid = ptid_get_tid (regcache_get_ptid (regcache)); |
539 | windows_thread_info *th = thread_rec (pid, TRUE); | |
540 | ||
541 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 542 | thread id in its events. */ |
3de88e9a SM |
543 | if (th != NULL) |
544 | do_windows_fetch_inferior_registers (regcache, th, r); | |
3cee93ac CF |
545 | } |
546 | ||
547 | static void | |
3de88e9a SM |
548 | do_windows_store_inferior_registers (const struct regcache *regcache, |
549 | windows_thread_info *th, int r) | |
3cee93ac | 550 | { |
3de88e9a | 551 | if (r >= 0) |
56be3814 | 552 | regcache_raw_collect (regcache, r, |
3de88e9a | 553 | ((char *) &th->context) + mappings[r]); |
24e60978 SC |
554 | else |
555 | { | |
40a6adc1 | 556 | for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++) |
3de88e9a | 557 | do_windows_store_inferior_registers (regcache, th, r); |
24e60978 SC |
558 | } |
559 | } | |
560 | ||
3de88e9a SM |
561 | /* Store a new register value into the context of the thread tied to |
562 | REGCACHE. */ | |
3cee93ac | 563 | static void |
28439f5e PA |
564 | windows_store_inferior_registers (struct target_ops *ops, |
565 | struct regcache *regcache, int r) | |
3cee93ac | 566 | { |
3de88e9a SM |
567 | DWORD pid = ptid_get_tid (regcache_get_ptid (regcache)); |
568 | windows_thread_info *th = thread_rec (pid, TRUE); | |
569 | ||
570 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 571 | thread id in its events. */ |
3de88e9a SM |
572 | if (th != NULL) |
573 | do_windows_store_inferior_registers (regcache, th, r); | |
3cee93ac | 574 | } |
24e60978 | 575 | |
450005e7 | 576 | /* Encapsulate the information required in a call to |
581e13c1 | 577 | symbol_file_add_args. */ |
8a892701 CF |
578 | struct safe_symbol_file_add_args |
579 | { | |
580 | char *name; | |
581 | int from_tty; | |
582 | struct section_addr_info *addrs; | |
583 | int mainline; | |
584 | int flags; | |
7c5c87c0 | 585 | struct ui_file *err, *out; |
8a892701 CF |
586 | struct objfile *ret; |
587 | }; | |
588 | ||
581e13c1 | 589 | /* Maintain a linked list of "so" information. */ |
d0e449a1 | 590 | struct lm_info_windows : public lm_info_base |
02e423b9 | 591 | { |
f8fdb78e | 592 | LPVOID load_addr = 0; |
3ee6f623 CF |
593 | }; |
594 | ||
595 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 596 | |
de1b3c3d | 597 | static struct so_list * |
dc05df57 | 598 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 599 | { |
3ee6f623 | 600 | struct so_list *so; |
d0d0ab16 CV |
601 | char *p; |
602 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
603 | char buf[__PMAX]; |
604 | char cwd[__PMAX]; | |
3f8ad85b CF |
605 | WIN32_FIND_DATA w32_fd; |
606 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 607 | |
6badb179 CF |
608 | if (h == INVALID_HANDLE_VALUE) |
609 | strcpy (buf, name); | |
610 | else | |
3f8ad85b | 611 | { |
c914e0cc CF |
612 | FindClose (h); |
613 | strcpy (buf, name); | |
614 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
615 | { | |
616 | p = strrchr (buf, '\\'); | |
617 | if (p) | |
618 | p[1] = '\0'; | |
619 | SetCurrentDirectory (buf); | |
620 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
621 | SetCurrentDirectory (cwd); | |
622 | } | |
3f8ad85b | 623 | } |
3ee6f623 CF |
624 | if (strcasecmp (buf, "ntdll.dll") == 0) |
625 | { | |
626 | GetSystemDirectory (buf, sizeof (buf)); | |
627 | strcat (buf, "\\ntdll.dll"); | |
628 | } | |
d0d0ab16 | 629 | #else |
b3c613f2 | 630 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 631 | |
b3c613f2 | 632 | buf[0] = 0; |
d0d0ab16 CV |
633 | if (access (name, F_OK) != 0) |
634 | { | |
635 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 636 | #ifdef __USEWIDE |
d0d0ab16 CV |
637 | { |
638 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
639 | wcscat (buf, L"\\ntdll.dll"); | |
640 | } | |
b3c613f2 CF |
641 | #else |
642 | { | |
643 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
644 | strcat (buf, "\\ntdll.dll"); | |
645 | } | |
646 | #endif | |
d0d0ab16 CV |
647 | } |
648 | #endif | |
41bf6aca | 649 | so = XCNEW (struct so_list); |
f8fdb78e | 650 | lm_info_windows *li = new lm_info_windows; |
d0e449a1 SM |
651 | so->lm_info = li; |
652 | li->load_addr = load_addr; | |
de1b3c3d | 653 | strcpy (so->so_original_name, name); |
10325bc5 PA |
654 | #ifndef __CYGWIN__ |
655 | strcpy (so->so_name, buf); | |
656 | #else | |
d0d0ab16 CV |
657 | if (buf[0]) |
658 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
659 | SO_NAME_MAX_PATH_SIZE); | |
660 | else | |
661 | { | |
60c5c021 | 662 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
663 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
664 | { | |
665 | strcpy (so->so_name, rname); | |
666 | free (rname); | |
667 | } | |
668 | else | |
669 | error (_("dll path too long")); | |
670 | } | |
de1b3c3d PA |
671 | /* Record cygwin1.dll .text start/end. */ |
672 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
673 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
674 | { | |
de1b3c3d PA |
675 | asection *text = NULL; |
676 | CORE_ADDR text_vma; | |
8e860359 | 677 | |
192b62ce | 678 | gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386", -1)); |
a244bdca | 679 | |
192b62ce | 680 | if (abfd == NULL) |
de1b3c3d PA |
681 | return so; |
682 | ||
192b62ce TT |
683 | if (bfd_check_format (abfd.get (), bfd_object)) |
684 | text = bfd_get_section_by_name (abfd.get (), ".text"); | |
de1b3c3d PA |
685 | |
686 | if (!text) | |
192b62ce | 687 | return so; |
de1b3c3d | 688 | |
7a9dd1b2 | 689 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 690 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
691 | file header and the section alignment. */ |
692 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
693 | load_addr + 0x1000); | |
192b62ce TT |
694 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd.get (), |
695 | text); | |
de1b3c3d | 696 | } |
10325bc5 | 697 | #endif |
de1b3c3d PA |
698 | |
699 | return so; | |
8e860359 CF |
700 | } |
701 | ||
3ee6f623 | 702 | static char * |
dfe7f3ac CF |
703 | get_image_name (HANDLE h, void *address, int unicode) |
704 | { | |
d0d0ab16 | 705 | #ifdef __CYGWIN__ |
b3c613f2 | 706 | static char buf[__PMAX]; |
d0d0ab16 | 707 | #else |
b3c613f2 | 708 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 709 | #endif |
dfe7f3ac CF |
710 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
711 | char *address_ptr; | |
712 | int len = 0; | |
713 | char b[2]; | |
5732a500 | 714 | SIZE_T done; |
dfe7f3ac CF |
715 | |
716 | /* Attempt to read the name of the dll that was detected. | |
717 | This is documented to work only when actively debugging | |
581e13c1 | 718 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
719 | if (address == NULL) |
720 | return NULL; | |
721 | ||
dfe7f3ac | 722 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
723 | address isn't null. */ |
724 | if (!ReadProcessMemory (h, address, &address_ptr, | |
725 | sizeof (address_ptr), &done) | |
6f17862b | 726 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
727 | return NULL; |
728 | ||
581e13c1 | 729 | /* Find the length of the string. */ |
6f17862b CF |
730 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
731 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
732 | continue; | |
dfe7f3ac CF |
733 | |
734 | if (!unicode) | |
735 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
736 | else | |
737 | { | |
738 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
739 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
740 | &done); | |
d0d0ab16 | 741 | #ifdef __CYGWIN__ |
b3c613f2 | 742 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
743 | #else |
744 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
745 | 0, 0); | |
746 | #endif | |
dfe7f3ac CF |
747 | } |
748 | ||
749 | return buf; | |
750 | } | |
751 | ||
1cd9feab JB |
752 | /* Handle a DLL load event, and return 1. |
753 | ||
754 | This function assumes that this event did not occur during inferior | |
755 | initialization, where their event info may be incomplete (see | |
756 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
757 | on how we handle DLL loading during that phase). */ | |
758 | ||
1750a5ef | 759 | static int |
0a65a603 | 760 | handle_load_dll (void *dummy) |
24e60978 | 761 | { |
3a4b77d8 | 762 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
1cd9feab | 763 | char *dll_name; |
24e60978 | 764 | |
94481b8c JB |
765 | /* Try getting the DLL name via the lpImageName field of the event. |
766 | Note that Microsoft documents this fields as strictly optional, | |
767 | in the sense that it might be NULL. And the first DLL event in | |
768 | particular is explicitly documented as "likely not pass[ed]" | |
769 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
770 | dll_name = get_image_name (current_process_handle, |
771 | event->lpImageName, event->fUnicode); | |
3cee93ac CF |
772 | if (!dll_name) |
773 | return 1; | |
774 | ||
dc05df57 | 775 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 776 | solib_end = solib_end->next; |
450005e7 | 777 | |
d0e449a1 SM |
778 | lm_info_windows *li = (lm_info_windows *) solib_end->lm_info; |
779 | ||
a74ce742 | 780 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
d0e449a1 | 781 | host_address_to_string (li->load_addr))); |
7488902c | 782 | |
450005e7 CF |
783 | return 1; |
784 | } | |
785 | ||
3ee6f623 | 786 | static void |
dc05df57 | 787 | windows_free_so (struct so_list *so) |
3ee6f623 | 788 | { |
f8fdb78e SM |
789 | lm_info_windows *li = (lm_info_windows *) so->lm_info; |
790 | ||
791 | delete li; | |
de1b3c3d | 792 | xfree (so); |
3cb8e7f6 CF |
793 | } |
794 | ||
3be75f87 JB |
795 | /* Handle a DLL unload event. |
796 | Return 1 if successful, or zero otherwise. | |
797 | ||
798 | This function assumes that this event did not occur during inferior | |
799 | initialization, where their event info may be incomplete (see | |
800 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
801 | on how we handle DLL loading during that phase). */ | |
802 | ||
d3ff4a77 | 803 | static int |
0a65a603 | 804 | handle_unload_dll (void *dummy) |
d3ff4a77 | 805 | { |
d3653bf6 | 806 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 807 | struct so_list *so; |
d3ff4a77 CF |
808 | |
809 | for (so = &solib_start; so->next != NULL; so = so->next) | |
d0e449a1 SM |
810 | { |
811 | lm_info_windows *li_next = (lm_info_windows *) so->next->lm_info; | |
a25cd31f | 812 | |
d0e449a1 SM |
813 | if (li_next->load_addr == lpBaseOfDll) |
814 | { | |
815 | struct so_list *sodel = so->next; | |
7488902c | 816 | |
d0e449a1 SM |
817 | so->next = sodel->next; |
818 | if (!so->next) | |
819 | solib_end = so; | |
820 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); | |
821 | ||
822 | windows_free_so (sodel); | |
823 | return 1; | |
824 | } | |
825 | } | |
3929abe9 | 826 | |
ecc13e53 JB |
827 | /* We did not find any DLL that was previously loaded at this address, |
828 | so register a complaint. We do not report an error, because we have | |
829 | observed that this may be happening under some circumstances. For | |
830 | instance, running 32bit applications on x64 Windows causes us to receive | |
831 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
832 | events are apparently caused by the WOW layer, the interface between | |
833 | 32bit and 64bit worlds). */ | |
834 | complaint (&symfile_complaints, _("dll starting at %s not found."), | |
835 | host_address_to_string (lpBaseOfDll)); | |
d3ff4a77 CF |
836 | |
837 | return 0; | |
838 | } | |
839 | ||
581e13c1 | 840 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 841 | static void |
dc05df57 | 842 | windows_clear_solib (void) |
450005e7 | 843 | { |
450005e7 CF |
844 | solib_start.next = NULL; |
845 | solib_end = &solib_start; | |
450005e7 | 846 | } |
295732ea | 847 | |
463888ab РИ |
848 | static void |
849 | signal_event_command (char *args, int from_tty) | |
850 | { | |
851 | uintptr_t event_id = 0; | |
852 | char *endargs = NULL; | |
853 | ||
854 | if (args == NULL) | |
855 | error (_("signal-event requires an argument (integer event id)")); | |
856 | ||
857 | event_id = strtoumax (args, &endargs, 10); | |
858 | ||
859 | if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || | |
860 | ((HANDLE) event_id == INVALID_HANDLE_VALUE)) | |
861 | error (_("Failed to convert `%s' to event id"), args); | |
862 | ||
863 | SetEvent ((HANDLE) event_id); | |
864 | CloseHandle ((HANDLE) event_id); | |
865 | } | |
866 | ||
3cee93ac CF |
867 | /* Handle DEBUG_STRING output from child process. |
868 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 869 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
870 | static int |
871 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
872 | { | |
a244bdca CF |
873 | char *s = NULL; |
874 | int retval = 0; | |
3cee93ac CF |
875 | |
876 | if (!target_read_string | |
2c647436 PM |
877 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
878 | &s, 1024, 0) | |
3cee93ac | 879 | || !s || !*s) |
a244bdca | 880 | /* nothing to do */; |
61012eef | 881 | else if (!startswith (s, _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 882 | { |
10325bc5 | 883 | #ifdef __CYGWIN__ |
61012eef | 884 | if (!startswith (s, "cYg")) |
10325bc5 | 885 | #endif |
040ea00b JT |
886 | { |
887 | char *p = strchr (s, '\0'); | |
888 | ||
889 | if (p > s && *--p == '\n') | |
890 | *p = '\0'; | |
891 | warning (("%s"), s); | |
892 | } | |
3cee93ac | 893 | } |
f20c58f5 | 894 | #ifdef __CYGWIN__ |
d3a09475 | 895 | else |
3cee93ac | 896 | { |
581e13c1 MS |
897 | /* Got a cygwin signal marker. A cygwin signal is followed by |
898 | the signal number itself and then optionally followed by the | |
899 | thread id and address to saved context within the DLL. If | |
900 | these are supplied, then the given thread is assumed to have | |
901 | issued the signal and the context from the thread is assumed | |
902 | to be stored at the given address in the inferior. Tell gdb | |
903 | to treat this like a real signal. */ | |
3cee93ac | 904 | char *p; |
3929abe9 | 905 | int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0ae534d2 | 906 | gdb_signal gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 907 | |
0714f9bf SS |
908 | ourstatus->value.sig = gotasig; |
909 | if (gotasig) | |
a244bdca CF |
910 | { |
911 | LPCVOID x; | |
2c15ef43 | 912 | SIZE_T n; |
c62fa0e2 | 913 | |
a244bdca CF |
914 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
915 | retval = strtoul (p, &p, 0); | |
916 | if (!retval) | |
917 | retval = main_thread_id; | |
40653b35 | 918 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 919 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
920 | &saved_context, |
921 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
922 | && n == __COPY_CONTEXT_SIZE) |
923 | have_saved_context = 1; | |
a244bdca | 924 | } |
3cee93ac | 925 | } |
cb832706 | 926 | #endif |
3cee93ac | 927 | |
a244bdca CF |
928 | if (s) |
929 | xfree (s); | |
930 | return retval; | |
3cee93ac | 931 | } |
24e60978 | 932 | |
c1748f97 PM |
933 | static int |
934 | display_selector (HANDLE thread, DWORD sel) | |
935 | { | |
936 | LDT_ENTRY info; | |
937 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
938 | { | |
939 | int base, limit; | |
d50a0ce2 | 940 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 941 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
942 | { |
943 | puts_filtered ("Segment not present\n"); | |
944 | return 0; | |
945 | } | |
c1748f97 PM |
946 | base = (info.HighWord.Bits.BaseHi << 24) + |
947 | (info.HighWord.Bits.BaseMid << 16) | |
948 | + info.BaseLow; | |
949 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
950 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 951 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
952 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
953 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 954 | puts_filtered(" 32-bit "); |
c1748f97 | 955 | else |
baa93fa6 | 956 | puts_filtered(" 16-bit "); |
c1748f97 PM |
957 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
958 | { | |
959 | case 0: | |
baa93fa6 CF |
960 | puts_filtered ("Data (Read-Only, Exp-up"); |
961 | break; | |
c1748f97 | 962 | case 1: |
baa93fa6 CF |
963 | puts_filtered ("Data (Read/Write, Exp-up"); |
964 | break; | |
c1748f97 | 965 | case 2: |
baa93fa6 CF |
966 | puts_filtered ("Unused segment ("); |
967 | break; | |
c1748f97 | 968 | case 3: |
baa93fa6 CF |
969 | puts_filtered ("Data (Read/Write, Exp-down"); |
970 | break; | |
c1748f97 | 971 | case 4: |
baa93fa6 CF |
972 | puts_filtered ("Code (Exec-Only, N.Conf"); |
973 | break; | |
c1748f97 | 974 | case 5: |
baa93fa6 | 975 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
976 | break; |
977 | case 6: | |
baa93fa6 | 978 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
979 | break; |
980 | case 7: | |
baa93fa6 | 981 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
982 | break; |
983 | default: | |
984 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
985 | } | |
986 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 987 | puts_filtered(", N.Acc"); |
c1748f97 PM |
988 | puts_filtered (")\n"); |
989 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
990 | puts_filtered("System selector "); | |
991 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
992 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 993 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
994 | else |
995 | puts_filtered ("Byte granular.\n"); | |
996 | return 1; | |
997 | } | |
998 | else | |
999 | { | |
5572ce1f PM |
1000 | DWORD err = GetLastError (); |
1001 | if (err == ERROR_NOT_SUPPORTED) | |
1002 | printf_filtered ("Function not supported\n"); | |
1003 | else | |
d50a0ce2 | 1004 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1005 | return 0; |
1006 | } | |
1007 | } | |
1008 | ||
1009 | static void | |
1010 | display_selectors (char * args, int from_tty) | |
1011 | { | |
1012 | if (!current_thread) | |
1013 | { | |
1014 | puts_filtered ("Impossible to display selectors now.\n"); | |
1015 | return; | |
1016 | } | |
1017 | if (!args) | |
1018 | { | |
1019 | ||
1020 | puts_filtered ("Selector $cs\n"); | |
1021 | display_selector (current_thread->h, | |
baa93fa6 | 1022 | current_thread->context.SegCs); |
c1748f97 PM |
1023 | puts_filtered ("Selector $ds\n"); |
1024 | display_selector (current_thread->h, | |
baa93fa6 | 1025 | current_thread->context.SegDs); |
c1748f97 PM |
1026 | puts_filtered ("Selector $es\n"); |
1027 | display_selector (current_thread->h, | |
baa93fa6 | 1028 | current_thread->context.SegEs); |
c1748f97 PM |
1029 | puts_filtered ("Selector $ss\n"); |
1030 | display_selector (current_thread->h, | |
baa93fa6 | 1031 | current_thread->context.SegSs); |
c1748f97 PM |
1032 | puts_filtered ("Selector $fs\n"); |
1033 | display_selector (current_thread->h, | |
1034 | current_thread->context.SegFs); | |
1035 | puts_filtered ("Selector $gs\n"); | |
1036 | display_selector (current_thread->h, | |
baa93fa6 | 1037 | current_thread->context.SegGs); |
c1748f97 PM |
1038 | } |
1039 | else | |
1040 | { | |
1041 | int sel; | |
1042 | sel = parse_and_eval_long (args); | |
1043 | printf_filtered ("Selector \"%s\"\n",args); | |
1044 | display_selector (current_thread->h, sel); | |
1045 | } | |
1046 | } | |
1047 | ||
7393af7c | 1048 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1049 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1050 | host_address_to_string (\ | |
1051 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1052 | |
24cdb46e | 1053 | static handle_exception_result |
450005e7 | 1054 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1055 | { |
24cdb46e РИ |
1056 | EXCEPTION_RECORD *rec = ¤t_event.u.Exception.ExceptionRecord; |
1057 | DWORD code = rec->ExceptionCode; | |
1058 | handle_exception_result result = HANDLE_EXCEPTION_HANDLED; | |
3cee93ac | 1059 | |
29fe111d | 1060 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1061 | |
581e13c1 | 1062 | /* Record the context of the current thread. */ |
c25b7cce | 1063 | thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1064 | |
29fe111d | 1065 | switch (code) |
24e60978 | 1066 | { |
1ef980b9 | 1067 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c | 1068 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
a493e3e2 | 1069 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
10325bc5 | 1070 | #ifdef __CYGWIN__ |
8da8e0b3 | 1071 | { |
581e13c1 MS |
1072 | /* See if the access violation happened within the cygwin DLL |
1073 | itself. Cygwin uses a kind of exception handling to deal | |
1074 | with passed-in invalid addresses. gdb should not treat | |
1075 | these as real SEGVs since they will be silently handled by | |
1076 | cygwin. A real SEGV will (theoretically) be caught by | |
1077 | cygwin later in the process and will be sent as a | |
1078 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1079 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1080 | const char *fn; |
24cdb46e | 1081 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) rec->ExceptionAddress; |
581e13c1 MS |
1082 | |
1083 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1084 | && addr < cygwin_load_end)) | |
a244bdca | 1085 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
61012eef | 1086 | && startswith (fn, "KERNEL32!IsBad"))) |
24cdb46e | 1087 | return HANDLE_EXCEPTION_UNHANDLED; |
8da8e0b3 | 1088 | } |
10325bc5 | 1089 | #endif |
7393af7c PM |
1090 | break; |
1091 | case STATUS_STACK_OVERFLOW: | |
1092 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
a493e3e2 | 1093 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
7393af7c PM |
1094 | break; |
1095 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1096 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
a493e3e2 | 1097 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1098 | break; |
1099 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1100 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
a493e3e2 | 1101 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1102 | break; |
1103 | case STATUS_FLOAT_INEXACT_RESULT: | |
1104 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
a493e3e2 | 1105 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1106 | break; |
1107 | case STATUS_FLOAT_INVALID_OPERATION: | |
1108 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
a493e3e2 | 1109 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1110 | break; |
1111 | case STATUS_FLOAT_OVERFLOW: | |
1112 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
a493e3e2 | 1113 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1114 | break; |
1115 | case STATUS_FLOAT_STACK_CHECK: | |
1116 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
a493e3e2 | 1117 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 | 1118 | break; |
3b7c8b74 | 1119 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c | 1120 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
a493e3e2 | 1121 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1122 | break; |
3b7c8b74 | 1123 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c | 1124 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
a493e3e2 | 1125 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1126 | break; |
3b7c8b74 | 1127 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1128 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
a493e3e2 | 1129 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
3b7c8b74 | 1130 | break; |
7393af7c PM |
1131 | case STATUS_INTEGER_OVERFLOW: |
1132 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
a493e3e2 | 1133 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 SC |
1134 | break; |
1135 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1136 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
a493e3e2 | 1137 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 SC |
1138 | break; |
1139 | case DBG_CONTROL_C: | |
7393af7c | 1140 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
a493e3e2 | 1141 | ourstatus->value.sig = GDB_SIGNAL_INT; |
5b421780 PM |
1142 | break; |
1143 | case DBG_CONTROL_BREAK: | |
7393af7c | 1144 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
a493e3e2 | 1145 | ourstatus->value.sig = GDB_SIGNAL_INT; |
1ef980b9 SC |
1146 | break; |
1147 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1148 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
a493e3e2 | 1149 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 | 1150 | break; |
8227c82d | 1151 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c | 1152 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
a493e3e2 | 1153 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1154 | break; |
1155 | case EXCEPTION_PRIV_INSTRUCTION: | |
1156 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
a493e3e2 | 1157 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1158 | break; |
1159 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1160 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
a493e3e2 | 1161 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
8227c82d | 1162 | break; |
24cdb46e РИ |
1163 | case MS_VC_EXCEPTION: |
1164 | if (rec->NumberParameters >= 3 | |
1165 | && (rec->ExceptionInformation[0] & 0xffffffff) == 0x1000) | |
1166 | { | |
1167 | DWORD named_thread_id; | |
1168 | windows_thread_info *named_thread; | |
1169 | CORE_ADDR thread_name_target; | |
1170 | ||
1171 | DEBUG_EXCEPTION_SIMPLE ("MS_VC_EXCEPTION"); | |
1172 | ||
1173 | thread_name_target = rec->ExceptionInformation[1]; | |
1174 | named_thread_id = (DWORD) (0xffffffff & rec->ExceptionInformation[2]); | |
1175 | ||
1176 | if (named_thread_id == (DWORD) -1) | |
1177 | named_thread_id = current_event.dwThreadId; | |
1178 | ||
1179 | named_thread = thread_rec (named_thread_id, 0); | |
1180 | if (named_thread != NULL) | |
1181 | { | |
1182 | int thread_name_len; | |
1183 | char *thread_name; | |
1184 | ||
1185 | thread_name_len = target_read_string (thread_name_target, | |
1186 | &thread_name, 1025, NULL); | |
1187 | if (thread_name_len > 0) | |
1188 | { | |
1189 | thread_name[thread_name_len - 1] = '\0'; | |
1190 | xfree (named_thread->name); | |
1191 | named_thread->name = thread_name; | |
1192 | } | |
1193 | else | |
1194 | xfree (thread_name); | |
1195 | } | |
1196 | ourstatus->value.sig = GDB_SIGNAL_TRAP; | |
1197 | result = HANDLE_EXCEPTION_IGNORED; | |
1198 | break; | |
1199 | } | |
1200 | /* treat improperly formed exception as unknown, fallthrough */ | |
1ef980b9 | 1201 | default: |
581e13c1 | 1202 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1203 | if (current_event.u.Exception.dwFirstChance) |
24cdb46e | 1204 | return HANDLE_EXCEPTION_UNHANDLED; |
d50a0ce2 CV |
1205 | printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n", |
1206 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
a74ce742 PM |
1207 | host_address_to_string ( |
1208 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
a493e3e2 | 1209 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
1ef980b9 | 1210 | break; |
24e60978 | 1211 | } |
24e60978 | 1212 | exception_count++; |
7393af7c | 1213 | last_sig = ourstatus->value.sig; |
24cdb46e | 1214 | return result; |
24e60978 SC |
1215 | } |
1216 | ||
17617f2d EZ |
1217 | /* Resume thread specified by ID, or all artificially suspended |
1218 | threads, if we are continuing execution. KILLED non-zero means we | |
1219 | have killed the inferior, so we should ignore weird errors due to | |
1220 | threads shutting down. */ | |
3cee93ac | 1221 | static BOOL |
17617f2d | 1222 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac CF |
1223 | { |
1224 | int i; | |
876d1cd7 | 1225 | windows_thread_info *th; |
3cee93ac CF |
1226 | BOOL res; |
1227 | ||
0c3d84be | 1228 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n", |
d50a0ce2 CV |
1229 | (unsigned) current_event.dwProcessId, |
1230 | (unsigned) current_event.dwThreadId, | |
dfe7f3ac | 1231 | continue_status == DBG_CONTINUE ? |
7393af7c | 1232 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1233 | |
1234 | for (th = &thread_head; (th = th->next) != NULL;) | |
1235 | if ((id == -1 || id == (int) th->id) | |
1236 | && th->suspended) | |
1237 | { | |
1238 | if (debug_registers_changed) | |
1239 | { | |
1240 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1241 | th->context.Dr0 = dr[0]; | |
1242 | th->context.Dr1 = dr[1]; | |
1243 | th->context.Dr2 = dr[2]; | |
1244 | th->context.Dr3 = dr[3]; | |
1245 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1246 | th->context.Dr7 = dr[7]; | |
1247 | } | |
1248 | if (th->context.ContextFlags) | |
1249 | { | |
17617f2d EZ |
1250 | DWORD ec = 0; |
1251 | ||
1252 | if (GetExitCodeThread (th->h, &ec) | |
1253 | && ec == STILL_ACTIVE) | |
1254 | { | |
1255 | BOOL status = SetThreadContext (th->h, &th->context); | |
1256 | ||
1257 | if (!killed) | |
1258 | CHECK (status); | |
1259 | } | |
6537bb24 PA |
1260 | th->context.ContextFlags = 0; |
1261 | } | |
1262 | if (th->suspended > 0) | |
1263 | (void) ResumeThread (th->h); | |
1264 | th->suspended = 0; | |
1265 | } | |
1266 | ||
0714f9bf SS |
1267 | res = ContinueDebugEvent (current_event.dwProcessId, |
1268 | current_event.dwThreadId, | |
1269 | continue_status); | |
3cee93ac | 1270 | |
68ffc902 JT |
1271 | if (!res) |
1272 | error (_("Failed to resume program execution" | |
1273 | " (ContinueDebugEvent failed, error %u)"), | |
1274 | (unsigned int) GetLastError ()); | |
1275 | ||
fa4ba8da | 1276 | debug_registers_changed = 0; |
3cee93ac CF |
1277 | return res; |
1278 | } | |
1279 | ||
d6dc8049 CF |
1280 | /* Called in pathological case where Windows fails to send a |
1281 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1282 | static DWORD |
5439edaa | 1283 | fake_create_process (void) |
3ade5333 CF |
1284 | { |
1285 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1286 | current_event.dwProcessId); | |
bf25528d CF |
1287 | if (current_process_handle != NULL) |
1288 | open_process_used = 1; | |
1289 | else | |
1290 | { | |
d50a0ce2 CV |
1291 | error (_("OpenProcess call failed, GetLastError = %u"), |
1292 | (unsigned) GetLastError ()); | |
bf25528d CF |
1293 | /* We can not debug anything in that case. */ |
1294 | } | |
3ade5333 | 1295 | main_thread_id = current_event.dwThreadId; |
711e434b PM |
1296 | current_thread = windows_add_thread ( |
1297 | ptid_build (current_event.dwProcessId, 0, | |
1298 | current_event.dwThreadId), | |
1299 | current_event.u.CreateThread.hThread, | |
1300 | current_event.u.CreateThread.lpThreadLocalBase); | |
3ade5333 CF |
1301 | return main_thread_id; |
1302 | } | |
1303 | ||
a244bdca | 1304 | static void |
28439f5e | 1305 | windows_resume (struct target_ops *ops, |
2ea28649 | 1306 | ptid_t ptid, int step, enum gdb_signal sig) |
a244bdca | 1307 | { |
876d1cd7 | 1308 | windows_thread_info *th; |
a244bdca CF |
1309 | DWORD continue_status = DBG_CONTINUE; |
1310 | ||
2dc38344 PA |
1311 | /* A specific PTID means `step only this thread id'. */ |
1312 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1313 | ||
1314 | /* If we're continuing all threads, it's the current inferior that | |
1315 | should be handled specially. */ | |
1316 | if (resume_all) | |
1317 | ptid = inferior_ptid; | |
a244bdca | 1318 | |
a493e3e2 | 1319 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1320 | { |
1321 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1322 | { | |
1323 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1324 | } | |
1325 | else if (sig == last_sig) | |
1326 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1327 | else | |
1328 | #if 0 | |
1329 | /* This code does not seem to work, because | |
1330 | the kernel does probably not consider changes in the ExceptionRecord | |
1331 | structure when passing the exception to the inferior. | |
1332 | Note that this seems possible in the exception handler itself. */ | |
1333 | { | |
1334 | int i; | |
1335 | for (i = 0; xlate[i].them != -1; i++) | |
1336 | if (xlate[i].us == sig) | |
1337 | { | |
581e13c1 MS |
1338 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
1339 | = xlate[i].them; | |
a244bdca CF |
1340 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1341 | break; | |
1342 | } | |
1343 | if (continue_status == DBG_CONTINUE) | |
1344 | { | |
1345 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1346 | } | |
1347 | } | |
1348 | #endif | |
23942819 | 1349 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1350 | last_sig)); |
1351 | } | |
1352 | ||
a493e3e2 | 1353 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1354 | |
dc05df57 | 1355 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1356 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca | 1357 | |
581e13c1 | 1358 | /* Get context for currently selected thread. */ |
2dc38344 | 1359 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1360 | if (th) |
1361 | { | |
1362 | if (step) | |
1363 | { | |
581e13c1 | 1364 | /* Single step by setting t bit. */ |
a97b0ac8 UW |
1365 | struct regcache *regcache = get_current_regcache (); |
1366 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1367 | windows_fetch_inferior_registers (ops, regcache, | |
1368 | gdbarch_ps_regnum (gdbarch)); | |
a244bdca CF |
1369 | th->context.EFlags |= FLAG_TRACE_BIT; |
1370 | } | |
1371 | ||
1372 | if (th->context.ContextFlags) | |
1373 | { | |
1374 | if (debug_registers_changed) | |
1375 | { | |
1376 | th->context.Dr0 = dr[0]; | |
1377 | th->context.Dr1 = dr[1]; | |
1378 | th->context.Dr2 = dr[2]; | |
1379 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1380 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1381 | th->context.Dr7 = dr[7]; |
1382 | } | |
1383 | CHECK (SetThreadContext (th->h, &th->context)); | |
1384 | th->context.ContextFlags = 0; | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1389 | Otherwise complain. */ |
a244bdca | 1390 | |
2dc38344 | 1391 | if (resume_all) |
17617f2d | 1392 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1393 | else |
17617f2d | 1394 | windows_continue (continue_status, ptid_get_tid (ptid), 0); |
a244bdca CF |
1395 | } |
1396 | ||
695de547 CF |
1397 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1398 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1399 | Note that this function is not available prior to Windows XP. In this case | |
1400 | we emit a warning. */ | |
d603d4b3 | 1401 | static BOOL WINAPI |
695de547 CF |
1402 | ctrl_c_handler (DWORD event_type) |
1403 | { | |
1404 | const int attach_flag = current_inferior ()->attach_flag; | |
1405 | ||
bb0613a5 PM |
1406 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1407 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1408 | return FALSE; |
1409 | ||
1410 | /* If the inferior and the debugger share the same console, do nothing as | |
1411 | the inferior has also received the Ctrl-C event. */ | |
1412 | if (!new_console && !attach_flag) | |
1413 | return TRUE; | |
1414 | ||
1415 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1416 | warning (_("Could not interrupt program. " |
1417 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1418 | |
1419 | /* Return true to tell that Ctrl-C has been handled. */ | |
1420 | return TRUE; | |
1421 | } | |
1422 | ||
e6ad66bd JT |
1423 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1424 | requires handling by WFI (or whatever). */ | |
1e37c281 | 1425 | static int |
28439f5e PA |
1426 | get_windows_debug_event (struct target_ops *ops, |
1427 | int pid, struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1428 | { |
1429 | BOOL debug_event; | |
8a892701 | 1430 | DWORD continue_status, event_code; |
876d1cd7 YZ |
1431 | windows_thread_info *th; |
1432 | static windows_thread_info dummy_thread_info; | |
e6ad66bd | 1433 | DWORD thread_id = 0; |
1e37c281 | 1434 | |
a493e3e2 | 1435 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1436 | |
8a892701 | 1437 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1438 | goto out; |
1e37c281 JM |
1439 | |
1440 | event_count++; | |
1441 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1442 | |
8a892701 | 1443 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1444 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1445 | th = NULL; |
a244bdca | 1446 | have_saved_context = 0; |
8a892701 CF |
1447 | |
1448 | switch (event_code) | |
1e37c281 JM |
1449 | { |
1450 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1451 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1452 | (unsigned) current_event.dwProcessId, |
1453 | (unsigned) current_event.dwThreadId, | |
1454 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1455 | if (saw_create != 1) |
3ade5333 | 1456 | { |
181e7f93 PA |
1457 | struct inferior *inf; |
1458 | inf = find_inferior_pid (current_event.dwProcessId); | |
1459 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1460 | { |
d6dc8049 CF |
1461 | /* Kludge around a Windows bug where first event is a create |
1462 | thread event. Caused when attached process does not have | |
581e13c1 | 1463 | a main thread. */ |
e6ad66bd JT |
1464 | thread_id = fake_create_process (); |
1465 | if (thread_id) | |
181e7f93 | 1466 | saw_create++; |
3ade5333 CF |
1467 | } |
1468 | break; | |
1469 | } | |
581e13c1 | 1470 | /* Record the existence of this thread. */ |
e6ad66bd | 1471 | thread_id = current_event.dwThreadId; |
dc05df57 | 1472 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1473 | current_event.dwThreadId), |
711e434b PM |
1474 | current_event.u.CreateThread.hThread, |
1475 | current_event.u.CreateThread.lpThreadLocalBase); | |
1476 | ||
1e37c281 JM |
1477 | break; |
1478 | ||
1479 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1480 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1481 | (unsigned) current_event.dwProcessId, |
1482 | (unsigned) current_event.dwThreadId, | |
1483 | "EXIT_THREAD_DEBUG_EVENT")); | |
b3c613f2 | 1484 | |
87a45c96 CF |
1485 | if (current_event.dwThreadId != main_thread_id) |
1486 | { | |
dc05df57 | 1487 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1488 | current_event.dwThreadId), |
1489 | current_event.u.ExitThread.dwExitCode); | |
87a45c96 CF |
1490 | th = &dummy_thread_info; |
1491 | } | |
1e37c281 JM |
1492 | break; |
1493 | ||
1494 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1495 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1496 | (unsigned) current_event.dwProcessId, |
1497 | (unsigned) current_event.dwThreadId, | |
1498 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1499 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1500 | if (++saw_create != 1) |
bf25528d | 1501 | break; |
1e37c281 | 1502 | |
dfe7f3ac | 1503 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1504 | if (main_thread_id) |
695de547 | 1505 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1506 | main_thread_id), |
1507 | 0); | |
9d3789f7 | 1508 | main_thread_id = current_event.dwThreadId; |
581e13c1 | 1509 | /* Add the main thread. */ |
dc05df57 | 1510 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
695de547 | 1511 | current_event.dwThreadId), |
711e434b PM |
1512 | current_event.u.CreateProcessInfo.hThread, |
1513 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
e6ad66bd | 1514 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1515 | break; |
1516 | ||
1517 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1518 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1519 | (unsigned) current_event.dwProcessId, |
1520 | (unsigned) current_event.dwThreadId, | |
1521 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1522 | if (!windows_initialization_done) |
1523 | { | |
223ffa71 | 1524 | target_terminal::ours (); |
bc1e6c81 | 1525 | target_mourn_inferior (inferior_ptid); |
16d905e2 CF |
1526 | error (_("During startup program exited with code 0x%x."), |
1527 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1528 | } | |
1529 | else if (saw_create == 1) | |
1530 | { | |
1531 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1532 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
e6ad66bd | 1533 | thread_id = main_thread_id; |
16d905e2 | 1534 | } |
8a892701 | 1535 | break; |
1e37c281 JM |
1536 | |
1537 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1538 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1539 | (unsigned) current_event.dwProcessId, |
1540 | (unsigned) current_event.dwThreadId, | |
1541 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1542 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1543 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1544 | break; |
8a892701 | 1545 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); |
450005e7 CF |
1546 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1547 | ourstatus->value.integer = 0; | |
e6ad66bd | 1548 | thread_id = main_thread_id; |
1e37c281 JM |
1549 | break; |
1550 | ||
1551 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1552 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1553 | (unsigned) current_event.dwProcessId, |
1554 | (unsigned) current_event.dwThreadId, | |
1555 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1556 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1557 | break; |
d3ff4a77 | 1558 | catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL); |
de1b3c3d PA |
1559 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1560 | ourstatus->value.integer = 0; | |
e6ad66bd | 1561 | thread_id = main_thread_id; |
d3ff4a77 | 1562 | break; |
1e37c281 JM |
1563 | |
1564 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1565 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1566 | (unsigned) current_event.dwProcessId, |
1567 | (unsigned) current_event.dwThreadId, | |
1568 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1569 | if (saw_create != 1) |
1570 | break; | |
24cdb46e РИ |
1571 | switch (handle_exception (ourstatus)) |
1572 | { | |
1573 | case HANDLE_EXCEPTION_UNHANDLED: | |
1574 | default: | |
1575 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1576 | break; | |
1577 | case HANDLE_EXCEPTION_HANDLED: | |
1578 | thread_id = current_event.dwThreadId; | |
1579 | break; | |
1580 | case HANDLE_EXCEPTION_IGNORED: | |
1581 | continue_status = DBG_CONTINUE; | |
1582 | break; | |
1583 | } | |
1e37c281 JM |
1584 | break; |
1585 | ||
581e13c1 | 1586 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1587 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1588 | (unsigned) current_event.dwProcessId, |
1589 | (unsigned) current_event.dwThreadId, | |
1590 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1591 | if (saw_create != 1) |
1592 | break; | |
e6ad66bd | 1593 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1594 | break; |
9d3789f7 | 1595 | |
1e37c281 | 1596 | default: |
dfe7f3ac CF |
1597 | if (saw_create != 1) |
1598 | break; | |
0c3d84be | 1599 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1600 | (unsigned) current_event.dwProcessId, |
1601 | (unsigned) current_event.dwThreadId); | |
1602 | printf_unfiltered (" unknown event code %u\n", | |
1603 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1604 | break; |
1605 | } | |
1606 | ||
e6ad66bd | 1607 | if (!thread_id || saw_create != 1) |
a244bdca | 1608 | { |
95824559 | 1609 | CHECK (windows_continue (continue_status, -1, 0)); |
a244bdca | 1610 | } |
450005e7 | 1611 | else |
9d3789f7 | 1612 | { |
2dc38344 | 1613 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
e6ad66bd | 1614 | thread_id); |
776704b9 JT |
1615 | current_thread = th; |
1616 | if (!current_thread) | |
f16eab5f | 1617 | current_thread = thread_rec (thread_id, TRUE); |
9d3789f7 | 1618 | } |
1e37c281 JM |
1619 | |
1620 | out: | |
e6ad66bd | 1621 | return thread_id; |
1e37c281 JM |
1622 | } |
1623 | ||
2dc38344 | 1624 | /* Wait for interesting events to occur in the target process. */ |
39f77062 | 1625 | static ptid_t |
117de6a9 | 1626 | windows_wait (struct target_ops *ops, |
47608cb1 | 1627 | ptid_t ptid, struct target_waitstatus *ourstatus, int options) |
24e60978 | 1628 | { |
2dc38344 | 1629 | int pid = -1; |
39f77062 | 1630 | |
223ffa71 | 1631 | target_terminal::ours (); |
c44537cf | 1632 | |
24e60978 SC |
1633 | /* We loop when we get a non-standard exception rather than return |
1634 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1635 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1636 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1637 | isn't necessarily what you think it is. */ |
24e60978 SC |
1638 | |
1639 | while (1) | |
450005e7 | 1640 | { |
c57918b2 | 1641 | int retval; |
2b008701 | 1642 | |
695de547 CF |
1643 | /* If the user presses Ctrl-c while the debugger is waiting |
1644 | for an event, he expects the debugger to interrupt his program | |
1645 | and to get the prompt back. There are two possible situations: | |
1646 | ||
1647 | - The debugger and the program do not share the console, in | |
1648 | which case the Ctrl-c event only reached the debugger. | |
1649 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1650 | the inferior. Note that this case is working starting with |
1651 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1652 | inferior console. |
1653 | ||
1654 | - The debugger and the program share the same console, in which | |
1655 | case both debugger and inferior will receive the Ctrl-c event. | |
1656 | In that case the ctrl_c handler will ignore the event, as the | |
1657 | Ctrl-c event generated inside the inferior will trigger the | |
1658 | expected debug event. | |
1659 | ||
1660 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1661 | signal first and the delay until GDB receives that signal | |
1662 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1663 | after we have unblocked the CTRL+C handler. This would | |
1664 | lead to the debugger stopping prematurely while handling | |
1665 | the new-thread event that comes with the handling of the SIGINT | |
1666 | inside the inferior, and then stop again immediately when | |
1667 | the user tries to resume the execution in the inferior. | |
1668 | This is a classic race that we should try to fix one day. */ | |
1669 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
28439f5e | 1670 | retval = get_windows_debug_event (ops, pid, ourstatus); |
695de547 | 1671 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1672 | |
450005e7 | 1673 | if (retval) |
2dc38344 | 1674 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1675 | else |
1676 | { | |
1677 | int detach = 0; | |
3cee93ac | 1678 | |
98bbd631 AC |
1679 | if (deprecated_ui_loop_hook != NULL) |
1680 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1681 | |
450005e7 | 1682 | if (detach) |
7d85a9c0 | 1683 | windows_kill_inferior (ops); |
450005e7 CF |
1684 | } |
1685 | } | |
24e60978 SC |
1686 | } |
1687 | ||
ea39ad35 JB |
1688 | /* Iterate over all DLLs currently mapped by our inferior, and |
1689 | add them to our list of solibs. */ | |
94481b8c JB |
1690 | |
1691 | static void | |
ea39ad35 | 1692 | windows_add_all_dlls (void) |
94481b8c JB |
1693 | { |
1694 | struct so_list *so; | |
1695 | HMODULE dummy_hmodule; | |
1696 | DWORD cb_needed; | |
1697 | HMODULE *hmodules; | |
1698 | int i; | |
1699 | ||
94481b8c JB |
1700 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, |
1701 | sizeof (HMODULE), &cb_needed) == 0) | |
1702 | return; | |
1703 | ||
1704 | if (cb_needed < 1) | |
1705 | return; | |
1706 | ||
1707 | hmodules = (HMODULE *) alloca (cb_needed); | |
1708 | if (EnumProcessModules (current_process_handle, hmodules, | |
1709 | cb_needed, &cb_needed) == 0) | |
1710 | return; | |
1711 | ||
ea39ad35 | 1712 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
1713 | { |
1714 | MODULEINFO mi; | |
774f74c2 PM |
1715 | #ifdef __USEWIDE |
1716 | wchar_t dll_name[__PMAX]; | |
1717 | char name[__PMAX]; | |
1718 | #else | |
94481b8c | 1719 | char dll_name[__PMAX]; |
774f74c2 PM |
1720 | char *name; |
1721 | #endif | |
94481b8c JB |
1722 | if (GetModuleInformation (current_process_handle, hmodules[i], |
1723 | &mi, sizeof (mi)) == 0) | |
1724 | continue; | |
1725 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
1726 | dll_name, sizeof (dll_name)) == 0) | |
1727 | continue; | |
774f74c2 PM |
1728 | #ifdef __USEWIDE |
1729 | wcstombs (name, dll_name, __PMAX); | |
1730 | #else | |
1731 | name = dll_name; | |
1732 | #endif | |
ea39ad35 JB |
1733 | |
1734 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
1735 | solib_end = solib_end->next; | |
94481b8c JB |
1736 | } |
1737 | } | |
1738 | ||
9d3789f7 | 1739 | static void |
dc05df57 | 1740 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 | 1741 | { |
fa4ba8da | 1742 | int i; |
d6b48e9c | 1743 | struct inferior *inf; |
2020b7ab | 1744 | struct thread_info *tp; |
9d3789f7 | 1745 | |
a493e3e2 | 1746 | last_sig = GDB_SIGNAL_0; |
9d3789f7 CF |
1747 | event_count = 0; |
1748 | exception_count = 0; | |
bf25528d | 1749 | open_process_used = 0; |
fa4ba8da | 1750 | debug_registers_changed = 0; |
dfe7f3ac | 1751 | debug_registers_used = 0; |
fa4ba8da PM |
1752 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1753 | dr[i] = 0; | |
10325bc5 | 1754 | #ifdef __CYGWIN__ |
de1b3c3d | 1755 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1756 | #endif |
9d3789f7 CF |
1757 | current_event.dwProcessId = pid; |
1758 | memset (¤t_event, 0, sizeof (current_event)); | |
6a3cb8e8 PA |
1759 | if (!target_is_pushed (ops)) |
1760 | push_target (ops); | |
cb851954 | 1761 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1762 | windows_clear_solib (); |
88056fbb | 1763 | clear_proceed_status (0); |
9d3789f7 CF |
1764 | init_wait_for_inferior (); |
1765 | ||
6c95b8df PA |
1766 | inf = current_inferior (); |
1767 | inferior_appeared (inf, pid); | |
181e7f93 | 1768 | inf->attach_flag = attaching; |
7f9f62ba | 1769 | |
9f9d052e PM |
1770 | /* Make the new process the current inferior, so terminal handling |
1771 | can rely on it. When attaching, we don't know about any thread | |
1772 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1773 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1774 | inferior_ptid = pid_to_ptid (pid); |
1775 | ||
223ffa71 TT |
1776 | target_terminal::init (); |
1777 | target_terminal::inferior (); | |
9d3789f7 | 1778 | |
16d905e2 | 1779 | windows_initialization_done = 0; |
c72f45d1 | 1780 | |
9d3789f7 CF |
1781 | while (1) |
1782 | { | |
c72f45d1 PA |
1783 | struct target_waitstatus status; |
1784 | ||
1785 | windows_wait (ops, minus_one_ptid, &status, 0); | |
1786 | ||
1787 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
1788 | events. */ | |
1789 | if (status.kind != TARGET_WAITKIND_LOADED | |
1790 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 1791 | break; |
c72f45d1 PA |
1792 | |
1793 | windows_resume (ops, minus_one_ptid, 0, GDB_SIGNAL_0); | |
9d3789f7 | 1794 | } |
eff8332b | 1795 | |
ea39ad35 | 1796 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
1797 | we can iterate over all DLLs and load them in. |
1798 | ||
1799 | We avoid doing it any earlier because, on certain versions of Windows, | |
1800 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
1801 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
1802 | include the DLL name, preventing us from creating an associated SO. | |
1803 | A possible explanation is that ntdll.dll might be mapped before | |
1804 | the SO info gets created by the Windows system -- ntdll.dll is | |
1805 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
1806 | do not seem to suffer from that problem. | |
1807 | ||
1808 | Rather than try to work around this sort of issue, it is much | |
1809 | simpler to just ignore DLL load/unload events during the startup | |
1810 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 1811 | windows_add_all_dlls (); |
94481b8c | 1812 | |
16d905e2 | 1813 | windows_initialization_done = 1; |
9d3789f7 CF |
1814 | return; |
1815 | } | |
1816 | ||
616a9dc4 CV |
1817 | /* Try to set or remove a user privilege to the current process. Return -1 |
1818 | if that fails, the previous setting of that privilege otherwise. | |
1819 | ||
1820 | This code is copied from the Cygwin source code and rearranged to allow | |
1821 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 1822 | available on NT/2K/XP. */ |
616a9dc4 CV |
1823 | static int |
1824 | set_process_privilege (const char *privilege, BOOL enable) | |
1825 | { | |
616a9dc4 CV |
1826 | HANDLE token_hdl = NULL; |
1827 | LUID restore_priv; | |
1828 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1829 | int ret = -1; | |
1830 | DWORD size; | |
1831 | ||
616a9dc4 CV |
1832 | if (!OpenProcessToken (GetCurrentProcess (), |
1833 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1834 | &token_hdl)) | |
1835 | goto out; | |
1836 | ||
418c6cb3 | 1837 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1838 | goto out; |
1839 | ||
1840 | new_priv.PrivilegeCount = 1; | |
1841 | new_priv.Privileges[0].Luid = restore_priv; | |
1842 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1843 | ||
1844 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1845 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1846 | goto out; |
1847 | #if 0 | |
1848 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1849 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 1850 | windows_attach(). */ |
616a9dc4 | 1851 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 1852 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
1853 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
1854 | goto out; | |
1855 | #endif | |
1856 | ||
1857 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1858 | ||
1859 | out: | |
1860 | if (token_hdl) | |
1861 | CloseHandle (token_hdl); | |
1862 | ||
1863 | return ret; | |
1864 | } | |
1865 | ||
02cc9f49 | 1866 | /* Attach to process PID, then initialize for debugging it. */ |
24e60978 | 1867 | static void |
c0939df1 | 1868 | windows_attach (struct target_ops *ops, const char *args, int from_tty) |
24e60978 SC |
1869 | { |
1870 | BOOL ok; | |
559e75c0 | 1871 | DWORD pid; |
24e60978 | 1872 | |
74164c56 | 1873 | pid = parse_pid_to_attach (args); |
24e60978 | 1874 | |
616a9dc4 CV |
1875 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1876 | { | |
1877 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
1878 | printf_unfiltered ("This can cause attach to " |
1879 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
1880 | } |
1881 | ||
dc05df57 | 1882 | windows_init_thread_list (); |
9d3789f7 | 1883 | ok = DebugActiveProcess (pid); |
91a175b3 | 1884 | saw_create = 0; |
24e60978 | 1885 | |
10325bc5 | 1886 | #ifdef __CYGWIN__ |
24e60978 | 1887 | if (!ok) |
baa93fa6 | 1888 | { |
581e13c1 | 1889 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
1890 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
1891 | ||
1892 | if (pid > 0) | |
1893 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1894 | } |
1895 | #endif | |
baa93fa6 | 1896 | |
10325bc5 PA |
1897 | if (!ok) |
1898 | error (_("Can't attach to process.")); | |
24e60978 | 1899 | |
2b008701 | 1900 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1901 | |
24e60978 SC |
1902 | if (from_tty) |
1903 | { | |
1904 | char *exec_file = (char *) get_exec_file (0); | |
1905 | ||
1906 | if (exec_file) | |
1907 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1908 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1909 | else |
1910 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1911 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1912 | |
1913 | gdb_flush (gdb_stdout); | |
1914 | } | |
1915 | ||
dc05df57 | 1916 | do_initial_windows_stuff (ops, pid, 1); |
223ffa71 | 1917 | target_terminal::ours (); |
24e60978 SC |
1918 | } |
1919 | ||
24e60978 | 1920 | static void |
52554a0e | 1921 | windows_detach (struct target_ops *ops, const char *args, int from_tty) |
24e60978 | 1922 | { |
02cc9f49 CV |
1923 | int detached = 1; |
1924 | ||
8473b447 | 1925 | ptid_t ptid = minus_one_ptid; |
a493e3e2 | 1926 | windows_resume (ops, ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 1927 | |
2b008701 CF |
1928 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
1929 | { | |
d50a0ce2 CV |
1930 | error (_("Can't detach process %u (error %u)"), |
1931 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 1932 | detached = 0; |
02cc9f49 | 1933 | } |
2b008701 CF |
1934 | DebugSetProcessKillOnExit (FALSE); |
1935 | ||
02cc9f49 | 1936 | if (detached && from_tty) |
24e60978 | 1937 | { |
a121b7c1 | 1938 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
1939 | if (exec_file == 0) |
1940 | exec_file = ""; | |
d50a0ce2 CV |
1941 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
1942 | (unsigned) current_event.dwProcessId); | |
24e60978 SC |
1943 | gdb_flush (gdb_stdout); |
1944 | } | |
7f9f62ba | 1945 | |
df7e5265 | 1946 | x86_cleanup_dregs (); |
39f77062 | 1947 | inferior_ptid = null_ptid; |
7f9f62ba PA |
1948 | detach_inferior (current_event.dwProcessId); |
1949 | ||
6a3cb8e8 | 1950 | inf_child_maybe_unpush_target (ops); |
24e60978 SC |
1951 | } |
1952 | ||
47f7ffdb JB |
1953 | /* Try to determine the executable filename. |
1954 | ||
1955 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
1956 | ||
1957 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
1958 | this function returns nonzero. | |
1959 | ||
1960 | Otherwise, this function returns zero and the contents of | |
1961 | EXE_NAME_RET is undefined. */ | |
1962 | ||
1963 | static int | |
1964 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
1965 | { | |
1966 | DWORD len; | |
1967 | HMODULE dh_buf; | |
1968 | DWORD cbNeeded; | |
1969 | ||
1970 | cbNeeded = 0; | |
1971 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
1972 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
1973 | return 0; | |
1974 | ||
1975 | /* We know the executable is always first in the list of modules, | |
1976 | which we just fetched. So no need to fetch more. */ | |
1977 | ||
1978 | #ifdef __CYGWIN__ | |
1979 | { | |
1980 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
1981 | the filename into a temporary buffer first, and then convert it | |
1982 | to POSIX format into the destination buffer. */ | |
0ae534d2 | 1983 | cygwin_buf_t *pathbuf = (cygwin_buf_t *) alloca (exe_name_max_len * sizeof (cygwin_buf_t)); |
47f7ffdb JB |
1984 | |
1985 | len = GetModuleFileNameEx (current_process_handle, | |
1986 | dh_buf, pathbuf, exe_name_max_len); | |
1987 | if (len == 0) | |
1988 | error (_("Error getting executable filename: %u."), | |
1989 | (unsigned) GetLastError ()); | |
1990 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
1991 | exe_name_max_len) < 0) | |
1992 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
1993 | } | |
1994 | #else | |
1995 | len = GetModuleFileNameEx (current_process_handle, | |
1996 | dh_buf, exe_name_ret, exe_name_max_len); | |
1997 | if (len == 0) | |
1998 | error (_("Error getting executable filename: %u."), | |
1999 | (unsigned) GetLastError ()); | |
2000 | #endif | |
2001 | ||
2002 | return 1; /* success */ | |
2003 | } | |
2004 | ||
2005 | /* The pid_to_exec_file target_ops method for this platform. */ | |
2006 | ||
3ee6f623 | 2007 | static char * |
8dd27370 | 2008 | windows_pid_to_exec_file (struct target_ops *self, int pid) |
47216e51 | 2009 | { |
b3c613f2 | 2010 | static char path[__PMAX]; |
10325bc5 | 2011 | #ifdef __CYGWIN__ |
581e13c1 | 2012 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
2013 | int nchars; |
2014 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
2015 | |
2016 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
2017 | nchars = readlink (procexe, path, sizeof(path)); |
2018 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 2019 | { |
33605d39 CF |
2020 | path[nchars] = '\0'; /* Got it */ |
2021 | return path; | |
47216e51 | 2022 | } |
10325bc5 PA |
2023 | #endif |
2024 | ||
33605d39 | 2025 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 2026 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 2027 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
2028 | path[0] = '\0'; |
2029 | ||
2030 | return path; | |
47216e51 CV |
2031 | } |
2032 | ||
24e60978 SC |
2033 | /* Print status information about what we're accessing. */ |
2034 | ||
2035 | static void | |
dc05df57 | 2036 | windows_files_info (struct target_ops *ignore) |
24e60978 | 2037 | { |
181e7f93 PA |
2038 | struct inferior *inf = current_inferior (); |
2039 | ||
24e60978 | 2040 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
2041 | inf->attach_flag ? "attached" : "child", |
2042 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
2043 | } |
2044 | ||
cd44747c PM |
2045 | /* Modify CreateProcess parameters for use of a new separate console. |
2046 | Parameters are: | |
2047 | *FLAGS: DWORD parameter for general process creation flags. | |
2048 | *SI: STARTUPINFO structure, for which the console window size and | |
2049 | console buffer size is filled in if GDB is running in a console. | |
2050 | to create the new console. | |
2051 | The size of the used font is not available on all versions of | |
2052 | Windows OS. Furthermore, the current font might not be the default | |
2053 | font, but this is still better than before. | |
2054 | If the windows and buffer sizes are computed, | |
2055 | SI->DWFLAGS is changed so that this information is used | |
2056 | by CreateProcess function. */ | |
2057 | ||
2058 | static void | |
2059 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
2060 | { | |
2061 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
2062 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
2063 | ||
2064 | if (hconsole != INVALID_HANDLE_VALUE) | |
2065 | { | |
2066 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2067 | COORD font_size; | |
2068 | CONSOLE_FONT_INFO cfi; | |
2069 | ||
2070 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2071 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2072 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2073 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2074 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2075 | if (font_size.X) | |
2076 | si->dwXSize *= font_size.X; | |
2077 | else | |
2078 | si->dwXSize *= 8; | |
2079 | if (font_size.Y) | |
2080 | si->dwYSize *= font_size.Y; | |
2081 | else | |
2082 | si->dwYSize *= 12; | |
2083 | si->dwXCountChars = sbinfo.dwSize.X; | |
2084 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2085 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2086 | } | |
2087 | *flags |= CREATE_NEW_CONSOLE; | |
2088 | } | |
2089 | ||
c93dbcba EZ |
2090 | #ifndef __CYGWIN__ |
2091 | /* Function called by qsort to sort environment strings. */ | |
2092 | ||
2093 | static int | |
2094 | envvar_cmp (const void *a, const void *b) | |
2095 | { | |
2096 | const char **p = (const char **) a; | |
2097 | const char **q = (const char **) b; | |
2098 | return strcasecmp (*p, *q); | |
2099 | } | |
2100 | #endif | |
2101 | ||
b7ff339d CV |
2102 | #ifdef __CYGWIN__ |
2103 | static void | |
2104 | clear_win32_environment (char **env) | |
2105 | { | |
2106 | int i; | |
2107 | size_t len; | |
2108 | wchar_t *copy = NULL, *equalpos; | |
2109 | ||
2110 | for (i = 0; env[i] && *env[i]; i++) | |
2111 | { | |
2112 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2113 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2114 | mbstowcs (copy, env[i], len); | |
2115 | equalpos = wcschr (copy, L'='); | |
2116 | if (equalpos) | |
2117 | *equalpos = L'\0'; | |
2118 | SetEnvironmentVariableW (copy, NULL); | |
2119 | } | |
2120 | xfree (copy); | |
2121 | } | |
2122 | #endif | |
2123 | ||
8ba42bc5 EZ |
2124 | #ifndef __CYGWIN__ |
2125 | ||
2126 | /* Redirection of inferior I/O streams for native MS-Windows programs. | |
2127 | Unlike on Unix, where this is handled by invoking the inferior via | |
2128 | the shell, on MS-Windows we need to emulate the cmd.exe shell. | |
2129 | ||
2130 | The official documentation of the cmd.exe redirection features is here: | |
2131 | ||
2132 | http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/redirection.mspx | |
2133 | ||
2134 | (That page talks about Windows XP, but there's no newer | |
2135 | documentation, so we assume later versions of cmd.exe didn't change | |
2136 | anything.) | |
2137 | ||
2138 | Caveat: the documentation on that page seems to include a few lies. | |
2139 | For example, it describes strange constructs 1<&2 and 2<&1, which | |
2140 | seem to work only when 1>&2 resp. 2>&1 would make sense, and so I | |
2141 | think the cmd.exe parser of the redirection symbols simply doesn't | |
2142 | care about the < vs > distinction in these cases. Therefore, the | |
2143 | supported features are explicitly documented below. | |
2144 | ||
2145 | The emulation below aims at supporting all the valid use cases | |
2146 | supported by cmd.exe, which include: | |
2147 | ||
2148 | < FILE redirect standard input from FILE | |
2149 | 0< FILE redirect standard input from FILE | |
2150 | <&N redirect standard input from file descriptor N | |
2151 | 0<&N redirect standard input from file descriptor N | |
2152 | > FILE redirect standard output to FILE | |
2153 | >> FILE append standard output to FILE | |
2154 | 1>> FILE append standard output to FILE | |
2155 | >&N redirect standard output to file descriptor N | |
2156 | 1>&N redirect standard output to file descriptor N | |
2157 | >>&N append standard output to file descriptor N | |
2158 | 1>>&N append standard output to file descriptor N | |
2159 | 2> FILE redirect standard error to FILE | |
2160 | 2>> FILE append standard error to FILE | |
2161 | 2>&N redirect standard error to file descriptor N | |
2162 | 2>>&N append standard error to file descriptor N | |
2163 | ||
2164 | Note that using N > 2 in the above construct is supported, but | |
2165 | requires that the corresponding file descriptor be open by some | |
2166 | means elsewhere or outside GDB. Also note that using ">&0" or | |
2167 | "<&2" will generally fail, because the file descriptor redirected | |
2168 | from is normally open in an incompatible mode (e.g., FD 0 is open | |
2169 | for reading only). IOW, use of such tricks is not recommended; | |
2170 | you are on your own. | |
2171 | ||
2172 | We do NOT support redirection of file descriptors above 2, as in | |
2173 | "3>SOME-FILE", because MinGW compiled programs don't (supporting | |
2174 | that needs special handling in the startup code that MinGW | |
2175 | doesn't have). Pipes are also not supported. | |
2176 | ||
2177 | As for invalid use cases, where the redirection contains some | |
2178 | error, the emulation below will detect that and produce some | |
2179 | error and/or failure. But the behavior in those cases is not | |
2180 | bug-for-bug compatible with what cmd.exe does in those cases. | |
2181 | That's because what cmd.exe does then is not well defined, and | |
2182 | seems to be a side effect of the cmd.exe parsing of the command | |
2183 | line more than anything else. For example, try redirecting to an | |
2184 | invalid file name, as in "> foo:bar". | |
2185 | ||
2186 | There are also minor syntactic deviations from what cmd.exe does | |
2187 | in some corner cases. For example, it doesn't support the likes | |
2188 | of "> &foo" to mean redirect to file named literally "&foo"; we | |
2189 | do support that here, because that, too, sounds like some issue | |
2190 | with the cmd.exe parser. Another nicety is that we support | |
2191 | redirection targets that use file names with forward slashes, | |
2192 | something cmd.exe doesn't -- this comes in handy since GDB | |
2193 | file-name completion can be used when typing the command line for | |
2194 | the inferior. */ | |
2195 | ||
2196 | /* Support routines for redirecting standard handles of the inferior. */ | |
2197 | ||
2198 | /* Parse a single redirection spec, open/duplicate the specified | |
2199 | file/fd, and assign the appropriate value to one of the 3 standard | |
2200 | file descriptors. */ | |
2201 | static int | |
2202 | redir_open (const char *redir_string, int *inp, int *out, int *err) | |
2203 | { | |
2204 | int *fd, ref_fd = -2; | |
2205 | int mode; | |
2206 | const char *fname = redir_string + 1; | |
2207 | int rc = *redir_string; | |
2208 | ||
2209 | switch (rc) | |
2210 | { | |
2211 | case '0': | |
2212 | fname++; | |
2213 | /* FALLTHROUGH */ | |
2214 | case '<': | |
2215 | fd = inp; | |
2216 | mode = O_RDONLY; | |
2217 | break; | |
2218 | case '1': case '2': | |
2219 | fname++; | |
2220 | /* FALLTHROUGH */ | |
2221 | case '>': | |
2222 | fd = (rc == '2') ? err : out; | |
2223 | mode = O_WRONLY | O_CREAT; | |
2224 | if (*fname == '>') | |
2225 | { | |
2226 | fname++; | |
2227 | mode |= O_APPEND; | |
2228 | } | |
2229 | else | |
2230 | mode |= O_TRUNC; | |
2231 | break; | |
2232 | default: | |
2233 | return -1; | |
2234 | } | |
2235 | ||
2236 | if (*fname == '&' && '0' <= fname[1] && fname[1] <= '9') | |
2237 | { | |
2238 | /* A reference to a file descriptor. */ | |
2239 | char *fdtail; | |
2240 | ref_fd = (int) strtol (fname + 1, &fdtail, 10); | |
2241 | if (fdtail > fname + 1 && *fdtail == '\0') | |
2242 | { | |
2243 | /* Don't allow redirection when open modes are incompatible. */ | |
2244 | if ((ref_fd == 0 && (fd == out || fd == err)) | |
2245 | || ((ref_fd == 1 || ref_fd == 2) && fd == inp)) | |
2246 | { | |
2247 | errno = EPERM; | |
2248 | return -1; | |
2249 | } | |
2250 | if (ref_fd == 0) | |
2251 | ref_fd = *inp; | |
2252 | else if (ref_fd == 1) | |
2253 | ref_fd = *out; | |
2254 | else if (ref_fd == 2) | |
2255 | ref_fd = *err; | |
2256 | } | |
2257 | else | |
2258 | { | |
2259 | errno = EBADF; | |
2260 | return -1; | |
2261 | } | |
2262 | } | |
2263 | else | |
2264 | fname++; /* skip the separator space */ | |
2265 | /* If the descriptor is already open, close it. This allows | |
2266 | multiple specs of redirections for the same stream, which is | |
2267 | somewhat nonsensical, but still valid and supported by cmd.exe. | |
2268 | (But cmd.exe only opens a single file in this case, the one | |
2269 | specified by the last redirection spec on the command line.) */ | |
2270 | if (*fd >= 0) | |
2271 | _close (*fd); | |
2272 | if (ref_fd == -2) | |
2273 | { | |
2274 | *fd = _open (fname, mode, _S_IREAD | _S_IWRITE); | |
2275 | if (*fd < 0) | |
2276 | return -1; | |
2277 | } | |
2278 | else if (ref_fd == -1) | |
2279 | *fd = -1; /* reset to default destination */ | |
2280 | else | |
2281 | { | |
2282 | *fd = _dup (ref_fd); | |
2283 | if (*fd < 0) | |
2284 | return -1; | |
2285 | } | |
2286 | /* _open just sets a flag for O_APPEND, which won't be passed to the | |
2287 | inferior, so we need to actually move the file pointer. */ | |
2288 | if ((mode & O_APPEND) != 0) | |
2289 | _lseek (*fd, 0L, SEEK_END); | |
2290 | return 0; | |
2291 | } | |
2292 | ||
2293 | /* Canonicalize a single redirection spec and set up the corresponding | |
2294 | file descriptor as specified. */ | |
2295 | static int | |
2296 | redir_set_redirection (const char *s, int *inp, int *out, int *err) | |
2297 | { | |
2298 | char buf[__PMAX + 2 + 5]; /* extra space for quotes & redirection string */ | |
2299 | char *d = buf; | |
2300 | const char *start = s; | |
2301 | int quote = 0; | |
2302 | ||
2303 | *d++ = *s++; /* copy the 1st character, < or > or a digit */ | |
2304 | if ((*start == '>' || *start == '1' || *start == '2') | |
2305 | && *s == '>') | |
2306 | { | |
2307 | *d++ = *s++; | |
2308 | if (*s == '>' && *start != '>') | |
2309 | *d++ = *s++; | |
2310 | } | |
2311 | else if (*start == '0' && *s == '<') | |
2312 | *d++ = *s++; | |
2313 | /* cmd.exe recognizes "&N" only immediately after the redirection symbol. */ | |
2314 | if (*s != '&') | |
2315 | { | |
2316 | while (isspace (*s)) /* skip whitespace before file name */ | |
2317 | s++; | |
2318 | *d++ = ' '; /* separate file name with a single space */ | |
2319 | } | |
2320 | ||
2321 | /* Copy the file name. */ | |
2322 | while (*s) | |
2323 | { | |
2324 | /* Remove quoting characters from the file name in buf[]. */ | |
2325 | if (*s == '"') /* could support '..' quoting here */ | |
2326 | { | |
2327 | if (!quote) | |
2328 | quote = *s++; | |
2329 | else if (*s == quote) | |
2330 | { | |
2331 | quote = 0; | |
2332 | s++; | |
2333 | } | |
2334 | else | |
2335 | *d++ = *s++; | |
2336 | } | |
2337 | else if (*s == '\\') | |
2338 | { | |
2339 | if (s[1] == '"') /* could support '..' here */ | |
2340 | s++; | |
2341 | *d++ = *s++; | |
2342 | } | |
2343 | else if (isspace (*s) && !quote) | |
2344 | break; | |
2345 | else | |
2346 | *d++ = *s++; | |
2347 | if (d - buf >= sizeof (buf) - 1) | |
2348 | { | |
2349 | errno = ENAMETOOLONG; | |
2350 | return 0; | |
2351 | } | |
2352 | } | |
2353 | *d = '\0'; | |
2354 | ||
2355 | /* Windows doesn't allow redirection characters in file names, so we | |
2356 | can bail out early if they use them, or if there's no target file | |
2357 | name after the redirection symbol. */ | |
2358 | if (d[-1] == '>' || d[-1] == '<') | |
2359 | { | |
2360 | errno = ENOENT; | |
2361 | return 0; | |
2362 | } | |
2363 | if (redir_open (buf, inp, out, err) == 0) | |
2364 | return s - start; | |
2365 | return 0; | |
2366 | } | |
2367 | ||
2368 | /* Parse the command line for redirection specs and prepare the file | |
2369 | descriptors for the 3 standard streams accordingly. */ | |
2370 | static bool | |
2371 | redirect_inferior_handles (const char *cmd_orig, char *cmd, | |
2372 | int *inp, int *out, int *err) | |
2373 | { | |
2374 | const char *s = cmd_orig; | |
2375 | char *d = cmd; | |
2376 | int quote = 0; | |
2377 | bool retval = false; | |
2378 | ||
2379 | while (isspace (*s)) | |
2380 | *d++ = *s++; | |
2381 | ||
2382 | while (*s) | |
2383 | { | |
2384 | if (*s == '"') /* could also support '..' quoting here */ | |
2385 | { | |
2386 | if (!quote) | |
2387 | quote = *s; | |
2388 | else if (*s == quote) | |
2389 | quote = 0; | |
2390 | } | |
2391 | else if (*s == '\\') | |
2392 | { | |
2393 | if (s[1] == '"') /* escaped quote char */ | |
2394 | s++; | |
2395 | } | |
2396 | else if (!quote) | |
2397 | { | |
2398 | /* Process a single redirection candidate. */ | |
2399 | if (*s == '<' || *s == '>' | |
2400 | || ((*s == '1' || *s == '2') && s[1] == '>') | |
2401 | || (*s == '0' && s[1] == '<')) | |
2402 | { | |
2403 | int skip = redir_set_redirection (s, inp, out, err); | |
2404 | ||
2405 | if (skip <= 0) | |
2406 | return false; | |
2407 | retval = true; | |
2408 | s += skip; | |
2409 | } | |
2410 | } | |
2411 | if (*s) | |
2412 | *d++ = *s++; | |
2413 | } | |
2414 | *d = '\0'; | |
2415 | return retval; | |
2416 | } | |
2417 | #endif /* !__CYGWIN__ */ | |
2418 | ||
dc05df57 | 2419 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2420 | EXEC_FILE is the file to run. |
2421 | ALLARGS is a string containing the arguments to the program. | |
2422 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2423 | ||
24e60978 | 2424 | static void |
7c5ded6a SDJ |
2425 | windows_create_inferior (struct target_ops *ops, const char *exec_file, |
2426 | const std::string &origallargs, char **in_env, | |
2427 | int from_tty) | |
24e60978 | 2428 | { |
b3c613f2 | 2429 | STARTUPINFO si; |
41b4aadc | 2430 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2431 | cygwin_buf_t real_path[__PMAX]; |
2432 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d092c5a2 | 2433 | cygwin_buf_t infcwd[__PMAX]; |
d0d0ab16 | 2434 | const char *sh; |
b3c613f2 CF |
2435 | cygwin_buf_t *toexec; |
2436 | cygwin_buf_t *cygallargs; | |
2437 | cygwin_buf_t *args; | |
b7ff339d CV |
2438 | char **old_env = NULL; |
2439 | PWCHAR w32_env; | |
d0d0ab16 | 2440 | size_t len; |
2becadee CF |
2441 | int tty; |
2442 | int ostdin, ostdout, ostderr; | |
8ba42bc5 | 2443 | #else /* !__CYGWIN__ */ |
b3c613f2 CF |
2444 | char real_path[__PMAX]; |
2445 | char shell[__PMAX]; /* Path to shell */ | |
5430098f | 2446 | const char *toexec; |
8ba42bc5 EZ |
2447 | char *args, *allargs_copy; |
2448 | size_t args_len, allargs_len; | |
2449 | int fd_inp = -1, fd_out = -1, fd_err = -1; | |
2450 | HANDLE tty = INVALID_HANDLE_VALUE; | |
2451 | HANDLE inf_stdin = INVALID_HANDLE_VALUE; | |
2452 | HANDLE inf_stdout = INVALID_HANDLE_VALUE; | |
2453 | HANDLE inf_stderr = INVALID_HANDLE_VALUE; | |
2454 | bool redirected = false; | |
c93dbcba EZ |
2455 | char *w32env; |
2456 | char *temp; | |
2457 | size_t envlen; | |
2458 | int i; | |
2459 | size_t envsize; | |
2460 | char **env; | |
8ba42bc5 | 2461 | #endif /* !__CYGWIN__ */ |
096c92dd | 2462 | const char *allargs = origallargs.c_str (); |
d0d0ab16 CV |
2463 | PROCESS_INFORMATION pi; |
2464 | BOOL ret; | |
2465 | DWORD flags = 0; | |
3cb3b8df | 2466 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2467 | |
2468 | if (!exec_file) | |
8a3fe4f8 | 2469 | error (_("No executable specified, use `target exec'.")); |
24e60978 | 2470 | |
d092c5a2 SDJ |
2471 | const char *inferior_cwd = get_inferior_cwd (); |
2472 | std::string expanded_infcwd; | |
2473 | if (inferior_cwd != NULL) | |
2474 | { | |
2475 | expanded_infcwd = gdb_tilde_expand (inferior_cwd); | |
2476 | /* Mirror slashes on inferior's cwd. */ | |
2477 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), | |
2478 | '/', '\\'); | |
2479 | inferior_cwd = expanded_infcwd.c_str (); | |
2480 | } | |
2481 | ||
24e60978 SC |
2482 | memset (&si, 0, sizeof (si)); |
2483 | si.cb = sizeof (si); | |
2484 | ||
d0d0ab16 CV |
2485 | if (new_group) |
2486 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2487 | ||
2488 | if (new_console) | |
cd44747c | 2489 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2490 | |
10325bc5 | 2491 | #ifdef __CYGWIN__ |
349b409f | 2492 | if (!useshell) |
dfe7f3ac | 2493 | { |
d0d0ab16 CV |
2494 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2495 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2496 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2497 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2498 | toexec = real_path; |
b3c613f2 | 2499 | #ifdef __USEWIDE |
d0d0ab16 CV |
2500 | len = mbstowcs (NULL, allargs, 0) + 1; |
2501 | if (len == (size_t) -1) | |
2502 | error (_("Error starting executable: %d"), errno); | |
2503 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2504 | mbstowcs (cygallargs, allargs, len); | |
8ba42bc5 | 2505 | #else /* !__USEWIDE */ |
60c5c021 | 2506 | cygallargs = allargs; |
b3c613f2 | 2507 | #endif |
dfe7f3ac CF |
2508 | } |
2509 | else | |
2510 | { | |
349b409f CF |
2511 | sh = getenv ("SHELL"); |
2512 | if (!sh) | |
2513 | sh = "/bin/sh"; | |
b3c613f2 | 2514 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2515 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2516 | #ifdef __USEWIDE |
d0d0ab16 CV |
2517 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2518 | + mbstowcs (NULL, allargs, 0) + 2; | |
2519 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2520 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2521 | #else /* !__USEWIDE */ |
08850b56 PM |
2522 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2523 | + strlen (allargs) + 2); | |
2524 | cygallargs = (char *) alloca (len); | |
2525 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2526 | #endif /* __USEWIDE */ |
dfe7f3ac | 2527 | toexec = shell; |
d0d0ab16 | 2528 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2529 | } |
b3c613f2 | 2530 | |
d092c5a2 SDJ |
2531 | if (inferior_cwd != NULL |
2532 | && cygwin_conv_path (CCP_POSIX_TO_WIN_W, inferior_cwd, | |
2533 | infcwd, strlen (inferior_cwd)) < 0) | |
2534 | error (_("Error converting inferior cwd: %d"), errno); | |
2535 | ||
b3c613f2 CF |
2536 | #ifdef __USEWIDE |
2537 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2538 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2539 | wcscpy (args, toexec); |
2540 | wcscat (args, L" "); | |
2541 | wcscat (args, cygallargs); | |
8ba42bc5 | 2542 | #else /* !__USEWIDE */ |
b3c613f2 CF |
2543 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); |
2544 | strcpy (args, toexec); | |
2545 | strcat (args, " "); | |
2546 | strcat (args, cygallargs); | |
8ba42bc5 | 2547 | #endif /* !__USEWIDE */ |
b3c613f2 | 2548 | |
b7ff339d CV |
2549 | #ifdef CW_CVT_ENV_TO_WINENV |
2550 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2551 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2552 | if (w32_env != (PWCHAR) -1) | |
2553 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2554 | else | |
2555 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
8ba42bc5 | 2556 | #endif /* CW_CVT_ENV_TO_WINENV */ |
b7ff339d CV |
2557 | { |
2558 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2559 | clear_win32_environment (environ); | |
2560 | /* Prepare the environment vars for CreateProcess. */ | |
2561 | old_env = environ; | |
2562 | environ = in_env; | |
2563 | cygwin_internal (CW_SYNC_WINENV); | |
2564 | w32_env = NULL; | |
2565 | } | |
1750a5ef | 2566 | |
2becadee CF |
2567 | if (!inferior_io_terminal) |
2568 | tty = ostdin = ostdout = ostderr = -1; | |
2569 | else | |
2570 | { | |
2571 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2572 | if (tty < 0) | |
2573 | { | |
2574 | print_sys_errmsg (inferior_io_terminal, errno); | |
2575 | ostdin = ostdout = ostderr = -1; | |
2576 | } | |
2577 | else | |
2578 | { | |
2579 | ostdin = dup (0); | |
2580 | ostdout = dup (1); | |
2581 | ostderr = dup (2); | |
2582 | dup2 (tty, 0); | |
2583 | dup2 (tty, 1); | |
2584 | dup2 (tty, 2); | |
2585 | } | |
2586 | } | |
d0d0ab16 CV |
2587 | |
2588 | windows_init_thread_list (); | |
b3c613f2 CF |
2589 | ret = CreateProcess (0, |
2590 | args, /* command line */ | |
2591 | NULL, /* Security */ | |
2592 | NULL, /* thread */ | |
2593 | TRUE, /* inherit handles */ | |
2594 | flags, /* start flags */ | |
b7ff339d | 2595 | w32_env, /* environment */ |
d092c5a2 SDJ |
2596 | inferior_cwd != NULL ? infcwd : NULL, /* current |
2597 | directory */ | |
b3c613f2 CF |
2598 | &si, |
2599 | &pi); | |
b7ff339d CV |
2600 | if (w32_env) |
2601 | /* Just free the Win32 environment, if it could be created. */ | |
2602 | free (w32_env); | |
2603 | else | |
2604 | { | |
2605 | /* Reset all environment variables to avoid leftover on next run. */ | |
2606 | clear_win32_environment (in_env); | |
2607 | /* Restore normal GDB environment variables. */ | |
2608 | environ = old_env; | |
2609 | cygwin_internal (CW_SYNC_WINENV); | |
2610 | } | |
2611 | ||
d0d0ab16 CV |
2612 | if (tty >= 0) |
2613 | { | |
2614 | close (tty); | |
2615 | dup2 (ostdin, 0); | |
2616 | dup2 (ostdout, 1); | |
2617 | dup2 (ostderr, 2); | |
2618 | close (ostdin); | |
2619 | close (ostdout); | |
2620 | close (ostderr); | |
2621 | } | |
8ba42bc5 EZ |
2622 | #else /* !__CYGWIN__ */ |
2623 | allargs_len = strlen (allargs); | |
2624 | allargs_copy = strcpy ((char *) alloca (allargs_len + 1), allargs); | |
2625 | if (strpbrk (allargs_copy, "<>") != NULL) | |
2626 | { | |
2627 | int e = errno; | |
2628 | errno = 0; | |
2629 | redirected = | |
2630 | redirect_inferior_handles (allargs, allargs_copy, | |
2631 | &fd_inp, &fd_out, &fd_err); | |
2632 | if (errno) | |
2633 | warning (_("Error in redirection: %s."), strerror (errno)); | |
2634 | else | |
2635 | errno = e; | |
2636 | allargs_len = strlen (allargs_copy); | |
2637 | } | |
2638 | /* If not all the standard streams are redirected by the command | |
2639 | line, use inferior_io_terminal for those which aren't. */ | |
2640 | if (inferior_io_terminal | |
2641 | && !(fd_inp >= 0 && fd_out >= 0 && fd_err >= 0)) | |
41b4aadc CF |
2642 | { |
2643 | SECURITY_ATTRIBUTES sa; | |
2644 | sa.nLength = sizeof(sa); | |
2645 | sa.lpSecurityDescriptor = 0; | |
2646 | sa.bInheritHandle = TRUE; | |
2647 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2648 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2649 | if (tty == INVALID_HANDLE_VALUE) | |
2650 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2651 | inferior_io_terminal, (unsigned) GetLastError ()); | |
8ba42bc5 EZ |
2652 | } |
2653 | if (redirected || tty != INVALID_HANDLE_VALUE) | |
2654 | { | |
2655 | if (fd_inp >= 0) | |
2656 | si.hStdInput = (HANDLE) _get_osfhandle (fd_inp); | |
2657 | else if (tty != INVALID_HANDLE_VALUE) | |
2658 | si.hStdInput = tty; | |
41b4aadc | 2659 | else |
8ba42bc5 EZ |
2660 | si.hStdInput = GetStdHandle (STD_INPUT_HANDLE); |
2661 | if (fd_out >= 0) | |
2662 | si.hStdOutput = (HANDLE) _get_osfhandle (fd_out); | |
2663 | else if (tty != INVALID_HANDLE_VALUE) | |
2664 | si.hStdOutput = tty; | |
2665 | else | |
2666 | si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE); | |
2667 | if (fd_err >= 0) | |
2668 | si.hStdError = (HANDLE) _get_osfhandle (fd_err); | |
2669 | else if (tty != INVALID_HANDLE_VALUE) | |
2670 | si.hStdError = tty; | |
2671 | else | |
2672 | si.hStdError = GetStdHandle (STD_ERROR_HANDLE); | |
2673 | si.dwFlags |= STARTF_USESTDHANDLES; | |
41b4aadc | 2674 | } |
2becadee | 2675 | |
8ba42bc5 EZ |
2676 | toexec = exec_file; |
2677 | /* Build the command line, a space-separated list of tokens where | |
2678 | the first token is the name of the module to be executed. | |
2679 | To avoid ambiguities introduced by spaces in the module name, | |
2680 | we quote it. */ | |
2681 | args_len = strlen (toexec) + 2 /* quotes */ + allargs_len + 2; | |
2682 | args = (char *) alloca (args_len); | |
2683 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs_copy); | |
2684 | ||
2685 | flags |= DEBUG_ONLY_THIS_PROCESS; | |
2686 | ||
c93dbcba EZ |
2687 | /* CreateProcess takes the environment list as a null terminated set of |
2688 | strings (i.e. two nulls terminate the list). */ | |
2689 | ||
2690 | /* Get total size for env strings. */ | |
2691 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2692 | envlen += strlen (in_env[i]) + 1; | |
2693 | ||
2694 | envsize = sizeof (in_env[0]) * (i + 1); | |
2695 | env = (char **) alloca (envsize); | |
2696 | memcpy (env, in_env, envsize); | |
2697 | /* Windows programs expect the environment block to be sorted. */ | |
2698 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2699 | ||
0ae1c716 | 2700 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
2701 | |
2702 | /* Copy env strings into new buffer. */ | |
2703 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2704 | { | |
2705 | strcpy (temp, env[i]); | |
2706 | temp += strlen (temp) + 1; | |
2707 | } | |
2708 | ||
2709 | /* Final nil string to terminate new env. */ | |
2710 | *temp = 0; | |
2711 | ||
dc05df57 | 2712 | windows_init_thread_list (); |
d0d0ab16 CV |
2713 | ret = CreateProcessA (0, |
2714 | args, /* command line */ | |
2715 | NULL, /* Security */ | |
2716 | NULL, /* thread */ | |
2717 | TRUE, /* inherit handles */ | |
2718 | flags, /* start flags */ | |
c93dbcba | 2719 | w32env, /* environment */ |
d092c5a2 | 2720 | inferior_cwd, /* current directory */ |
d0d0ab16 CV |
2721 | &si, |
2722 | &pi); | |
41b4aadc CF |
2723 | if (tty != INVALID_HANDLE_VALUE) |
2724 | CloseHandle (tty); | |
8ba42bc5 EZ |
2725 | if (fd_inp >= 0) |
2726 | _close (fd_inp); | |
2727 | if (fd_out >= 0) | |
2728 | _close (fd_out); | |
2729 | if (fd_err >= 0) | |
2730 | _close (fd_err); | |
2731 | #endif /* !__CYGWIN__ */ | |
2becadee | 2732 | |
24e60978 | 2733 | if (!ret) |
d50a0ce2 | 2734 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 2735 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 2736 | |
c1766e7d PM |
2737 | CloseHandle (pi.hThread); |
2738 | CloseHandle (pi.hProcess); | |
2739 | ||
dfe7f3ac CF |
2740 | if (useshell && shell[0] != '\0') |
2741 | saw_create = -1; | |
2742 | else | |
2743 | saw_create = 0; | |
2744 | ||
dc05df57 | 2745 | do_initial_windows_stuff (ops, pi.dwProcessId, 0); |
d3a09475 | 2746 | |
17617f2d | 2747 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
2748 | } |
2749 | ||
2750 | static void | |
dc05df57 | 2751 | windows_mourn_inferior (struct target_ops *ops) |
24e60978 | 2752 | { |
17617f2d | 2753 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 2754 | x86_cleanup_dregs(); |
bf25528d CF |
2755 | if (open_process_used) |
2756 | { | |
2757 | CHECK (CloseHandle (current_process_handle)); | |
2758 | open_process_used = 0; | |
2759 | } | |
c1ee2fb3 | 2760 | inf_child_mourn_inferior (ops); |
24e60978 SC |
2761 | } |
2762 | ||
24e60978 | 2763 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 2764 | ^C on the controlling terminal. */ |
24e60978 | 2765 | |
b607efe7 | 2766 | static void |
bfedc46a | 2767 | windows_interrupt (struct target_ops *self, ptid_t ptid) |
24e60978 | 2768 | { |
1ef980b9 | 2769 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2770 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2771 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2772 | } |
2773 | ||
44f38867 PA |
2774 | /* Helper for windows_xfer_partial that handles memory transfers. |
2775 | Arguments are like target_xfer_partial. */ | |
2776 | ||
9b409511 | 2777 | static enum target_xfer_status |
44f38867 | 2778 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 2779 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 2780 | { |
5732a500 | 2781 | SIZE_T done = 0; |
44f38867 | 2782 | BOOL success; |
9e52adf9 | 2783 | DWORD lasterror = 0; |
44f38867 PA |
2784 | |
2785 | if (writebuf != NULL) | |
24e60978 | 2786 | { |
a2388568 | 2787 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 2788 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2789 | success = WriteProcessMemory (current_process_handle, |
2790 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
2791 | len, &done); | |
9e52adf9 | 2792 | if (!success) |
7126d5c8 | 2793 | lasterror = GetLastError (); |
2b008701 | 2794 | FlushInstructionCache (current_process_handle, |
2c647436 | 2795 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2796 | } |
2797 | else | |
2798 | { | |
a2388568 | 2799 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 2800 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2801 | success = ReadProcessMemory (current_process_handle, |
2802 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
2803 | len, &done); | |
9e52adf9 | 2804 | if (!success) |
7126d5c8 | 2805 | lasterror = GetLastError (); |
24e60978 | 2806 | } |
9b409511 | 2807 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 2808 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 2809 | return TARGET_XFER_OK; |
9e52adf9 | 2810 | else |
9b409511 | 2811 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
2812 | } |
2813 | ||
3ee6f623 | 2814 | static void |
7d85a9c0 | 2815 | windows_kill_inferior (struct target_ops *ops) |
24e60978 | 2816 | { |
3cee93ac CF |
2817 | CHECK (TerminateProcess (current_process_handle, 0)); |
2818 | ||
b5edcb45 ILT |
2819 | for (;;) |
2820 | { | |
17617f2d | 2821 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 2822 | break; |
3cee93ac | 2823 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2824 | break; |
3cee93ac | 2825 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2826 | break; |
2827 | } | |
2828 | ||
9eee20eb | 2829 | target_mourn_inferior (inferior_ptid); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
2830 | } |
2831 | ||
24e60978 | 2832 | static void |
de90e03d | 2833 | windows_close (struct target_ops *self) |
24e60978 | 2834 | { |
dc05df57 | 2835 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
dfd4cc63 | 2836 | ptid_get_pid (inferior_ptid))); |
24e60978 | 2837 | } |
1ef980b9 | 2838 | |
581e13c1 | 2839 | /* Convert pid to printable format. */ |
7a114964 | 2840 | static const char * |
117de6a9 | 2841 | windows_pid_to_str (struct target_ops *ops, ptid_t ptid) |
24e60978 | 2842 | { |
3ee6f623 | 2843 | static char buf[80]; |
3ee6f623 | 2844 | |
2dc38344 PA |
2845 | if (ptid_get_tid (ptid) != 0) |
2846 | { | |
2847 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2848 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2849 | return buf; | |
2850 | } | |
2851 | ||
2852 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2853 | } |
2854 | ||
9b409511 | 2855 | static enum target_xfer_status |
dc05df57 | 2856 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
2857 | enum target_object object, const char *annex, |
2858 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2859 | ULONGEST offset, ULONGEST len, | |
2860 | ULONGEST *xfered_len) | |
3cb8e7f6 | 2861 | { |
de1b3c3d PA |
2862 | struct obstack obstack; |
2863 | const char *buf; | |
2864 | LONGEST len_avail; | |
3cb8e7f6 | 2865 | struct so_list *so; |
3cb8e7f6 | 2866 | |
de1b3c3d | 2867 | if (writebuf) |
2ed4b548 | 2868 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 2869 | |
de1b3c3d PA |
2870 | obstack_init (&obstack); |
2871 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2872 | for (so = solib_start.next; so; so = so->next) | |
d0e449a1 SM |
2873 | { |
2874 | lm_info_windows *li = (lm_info_windows *) so->lm_info; | |
2875 | ||
2876 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) | |
2877 | (uintptr_t) li->load_addr, | |
2878 | target_gdbarch (), &obstack); | |
2879 | } | |
de1b3c3d | 2880 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2881 | |
0ae1c716 | 2882 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
2883 | len_avail = strlen (buf); |
2884 | if (offset >= len_avail) | |
49dc7f4b PM |
2885 | len= 0; |
2886 | else | |
2887 | { | |
2888 | if (len > len_avail - offset) | |
2889 | len = len_avail - offset; | |
2890 | memcpy (readbuf, buf + offset, len); | |
2891 | } | |
3cb8e7f6 | 2892 | |
de1b3c3d | 2893 | obstack_free (&obstack, NULL); |
9b409511 | 2894 | *xfered_len = (ULONGEST) len; |
0837c976 | 2895 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
2896 | } |
2897 | ||
9b409511 | 2898 | static enum target_xfer_status |
dc05df57 | 2899 | windows_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
2900 | const char *annex, gdb_byte *readbuf, |
2901 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, | |
2902 | ULONGEST *xfered_len) | |
3cb8e7f6 | 2903 | { |
de1b3c3d | 2904 | switch (object) |
3cb8e7f6 | 2905 | { |
de1b3c3d | 2906 | case TARGET_OBJECT_MEMORY: |
9b409511 | 2907 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
2908 | |
2909 | case TARGET_OBJECT_LIBRARIES: | |
dc05df57 | 2910 | return windows_xfer_shared_libraries (ops, object, annex, readbuf, |
9b409511 | 2911 | writebuf, offset, len, xfered_len); |
3929abe9 | 2912 | |
de1b3c3d | 2913 | default: |
e75fdfca TT |
2914 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
2915 | readbuf, writebuf, offset, len, | |
2916 | xfered_len); | |
3929abe9 | 2917 | } |
02c5aecd CF |
2918 | } |
2919 | ||
711e434b PM |
2920 | /* Provide thread local base, i.e. Thread Information Block address. |
2921 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
2922 | ||
2923 | static int | |
bd7ae0f5 TT |
2924 | windows_get_tib_address (struct target_ops *self, |
2925 | ptid_t ptid, CORE_ADDR *addr) | |
711e434b | 2926 | { |
876d1cd7 | 2927 | windows_thread_info *th; |
711e434b PM |
2928 | |
2929 | th = thread_rec (ptid_get_tid (ptid), 0); | |
2930 | if (th == NULL) | |
2931 | return 0; | |
2932 | ||
2933 | if (addr != NULL) | |
2934 | *addr = th->thread_local_base; | |
2935 | ||
2936 | return 1; | |
2937 | } | |
2938 | ||
1e2f1c5c | 2939 | static ptid_t |
1e6b91a4 | 2940 | windows_get_ada_task_ptid (struct target_ops *self, long lwp, long thread) |
1e2f1c5c JB |
2941 | { |
2942 | return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp); | |
2943 | } | |
2944 | ||
24cdb46e РИ |
2945 | /* Implementation of the to_thread_name method. */ |
2946 | ||
2947 | static const char * | |
2948 | windows_thread_name (struct target_ops *self, struct thread_info *thr) | |
2949 | { | |
2950 | return thread_rec (ptid_get_tid (thr->ptid), 0)->name; | |
2951 | } | |
2952 | ||
51a9c8c5 PA |
2953 | static struct target_ops * |
2954 | windows_target (void) | |
3ee6f623 | 2955 | { |
51a9c8c5 PA |
2956 | struct target_ops *t = inf_child_target (); |
2957 | ||
51a9c8c5 PA |
2958 | t->to_close = windows_close; |
2959 | t->to_attach = windows_attach; | |
2960 | t->to_attach_no_wait = 1; | |
2961 | t->to_detach = windows_detach; | |
2962 | t->to_resume = windows_resume; | |
2963 | t->to_wait = windows_wait; | |
2964 | t->to_fetch_registers = windows_fetch_inferior_registers; | |
2965 | t->to_store_registers = windows_store_inferior_registers; | |
2966 | t->to_xfer_partial = windows_xfer_partial; | |
2967 | t->to_files_info = windows_files_info; | |
2968 | t->to_kill = windows_kill_inferior; | |
2969 | t->to_create_inferior = windows_create_inferior; | |
2970 | t->to_mourn_inferior = windows_mourn_inferior; | |
2971 | t->to_thread_alive = windows_thread_alive; | |
2972 | t->to_pid_to_str = windows_pid_to_str; | |
bfedc46a | 2973 | t->to_interrupt = windows_interrupt; |
51a9c8c5 PA |
2974 | t->to_pid_to_exec_file = windows_pid_to_exec_file; |
2975 | t->to_get_ada_task_ptid = windows_get_ada_task_ptid; | |
2976 | t->to_get_tib_address = windows_get_tib_address; | |
24cdb46e | 2977 | t->to_thread_name = windows_thread_name; |
51a9c8c5 PA |
2978 | |
2979 | return t; | |
c719b714 | 2980 | } |
24e60978 SC |
2981 | |
2982 | void | |
dc05df57 | 2983 | _initialize_windows_nat (void) |
24e60978 | 2984 | { |
51a9c8c5 PA |
2985 | struct target_ops *t; |
2986 | ||
2987 | t = windows_target (); | |
2988 | ||
df7e5265 | 2989 | x86_use_watchpoints (t); |
51a9c8c5 | 2990 | |
df7e5265 GB |
2991 | x86_dr_low.set_control = cygwin_set_dr7; |
2992 | x86_dr_low.set_addr = cygwin_set_dr; | |
2993 | x86_dr_low.get_addr = cygwin_get_dr; | |
2994 | x86_dr_low.get_status = cygwin_get_dr6; | |
2995 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 2996 | |
df7e5265 GB |
2997 | /* x86_dr_low.debug_register_length field is set by |
2998 | calling x86_set_debug_register_length function | |
51a9c8c5 | 2999 | in processor windows specific native file. */ |
fa58ee11 | 3000 | |
51a9c8c5 | 3001 | add_target (t); |
1ef980b9 | 3002 | |
d0d0ab16 CV |
3003 | #ifdef __CYGWIN__ |
3004 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
3005 | #endif | |
3006 | ||
463888ab РИ |
3007 | add_com ("signal-event", class_run, signal_event_command, _("\ |
3008 | Signal a crashed process with event ID, to allow its debugging.\n\ | |
3009 | This command is needed in support of setting up GDB as JIT debugger on \ | |
3010 | MS-Windows. The command should be invoked from the GDB command line using \ | |
3011 | the '-ex' command-line option. The ID of the event that blocks the \ | |
3012 | crashed process will be supplied by the Windows JIT debugging mechanism.")); | |
3013 | ||
10325bc5 | 3014 | #ifdef __CYGWIN__ |
5bf193a2 AC |
3015 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
3016 | Set use of shell to start subprocess."), _("\ | |
3017 | Show use of shell to start subprocess."), NULL, | |
3018 | NULL, | |
3019 | NULL, /* FIXME: i18n: */ | |
3020 | &setlist, &showlist); | |
3021 | ||
581e13c1 MS |
3022 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
3023 | &cygwin_exceptions, _("\ | |
09280ddf CF |
3024 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
3025 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
3026 | NULL, | |
3027 | NULL, /* FIXME: i18n: */ | |
3028 | &setlist, &showlist); | |
10325bc5 | 3029 | #endif |
09280ddf | 3030 | |
5bf193a2 AC |
3031 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
3032 | Set creation of new console when creating child process."), _("\ | |
3033 | Show creation of new console when creating child process."), NULL, | |
3034 | NULL, | |
3035 | NULL, /* FIXME: i18n: */ | |
3036 | &setlist, &showlist); | |
3037 | ||
3038 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
3039 | Set creation of new group when creating child process."), _("\ | |
3040 | Show creation of new group when creating child process."), NULL, | |
3041 | NULL, | |
3042 | NULL, /* FIXME: i18n: */ | |
3043 | &setlist, &showlist); | |
3044 | ||
3045 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
3046 | Set whether to display execution in child process."), _("\ | |
3047 | Show whether to display execution in child process."), NULL, | |
3048 | NULL, | |
3049 | NULL, /* FIXME: i18n: */ | |
3050 | &setlist, &showlist); | |
3051 | ||
3052 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
3053 | Set whether to display kernel events in child process."), _("\ | |
3054 | Show whether to display kernel events in child process."), NULL, | |
3055 | NULL, | |
3056 | NULL, /* FIXME: i18n: */ | |
3057 | &setlist, &showlist); | |
3058 | ||
3059 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
3060 | Set whether to display memory accesses in child process."), _("\ | |
3061 | Show whether to display memory accesses in child process."), NULL, | |
3062 | NULL, | |
3063 | NULL, /* FIXME: i18n: */ | |
3064 | &setlist, &showlist); | |
3065 | ||
3066 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
3067 | &debug_exceptions, _("\ | |
3068 | Set whether to display kernel exceptions in child process."), _("\ | |
3069 | Show whether to display kernel exceptions in child process."), NULL, | |
3070 | NULL, | |
3071 | NULL, /* FIXME: i18n: */ | |
3072 | &setlist, &showlist); | |
1ef980b9 | 3073 | |
711e434b | 3074 | init_w32_command_list (); |
c1748f97 PM |
3075 | |
3076 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 3077 | _("Display selectors infos."), |
c1748f97 | 3078 | &info_w32_cmdlist); |
24e60978 | 3079 | } |
3cee93ac | 3080 | |
fa4ba8da PM |
3081 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
3082 | ||
3083 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
3084 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 3085 | actually set up when windows_continue is called. */ |
9bb9e8ad | 3086 | static void |
fa4ba8da PM |
3087 | cygwin_set_dr (int i, CORE_ADDR addr) |
3088 | { | |
3089 | if (i < 0 || i > 3) | |
3090 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3091 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 3092 | dr[i] = addr; |
fa4ba8da PM |
3093 | debug_registers_changed = 1; |
3094 | debug_registers_used = 1; | |
3095 | } | |
3096 | ||
3097 | /* Pass the value VAL to the inferior in the DR7 debug control | |
3098 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 3099 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
3100 | static void |
3101 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 3102 | { |
9bb9e8ad | 3103 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
3104 | debug_registers_changed = 1; |
3105 | debug_registers_used = 1; | |
3106 | } | |
3107 | ||
7b50312a PA |
3108 | /* Get the value of debug register I from the inferior. */ |
3109 | ||
3110 | static CORE_ADDR | |
3111 | cygwin_get_dr (int i) | |
3112 | { | |
3113 | return dr[i]; | |
3114 | } | |
3115 | ||
fa4ba8da PM |
3116 | /* Get the value of the DR6 debug status register from the inferior. |
3117 | Here we just return the value stored in dr[6] | |
3118 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 3119 | static unsigned long |
fa4ba8da PM |
3120 | cygwin_get_dr6 (void) |
3121 | { | |
9bb9e8ad | 3122 | return (unsigned long) dr[6]; |
fa4ba8da PM |
3123 | } |
3124 | ||
7b50312a PA |
3125 | /* Get the value of the DR7 debug status register from the inferior. |
3126 | Here we just return the value stored in dr[7] by the last call to | |
3127 | thread_rec for current_event.dwThreadId id. */ | |
3128 | ||
3129 | static unsigned long | |
3130 | cygwin_get_dr7 (void) | |
3131 | { | |
3132 | return (unsigned long) dr[7]; | |
3133 | } | |
3134 | ||
2dc38344 | 3135 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 3136 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 3137 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
3cee93ac | 3138 | static int |
28439f5e | 3139 | windows_thread_alive (struct target_ops *ops, ptid_t ptid) |
3cee93ac | 3140 | { |
2dc38344 PA |
3141 | int tid; |
3142 | ||
3143 | gdb_assert (ptid_get_tid (ptid) != 0); | |
3144 | tid = ptid_get_tid (ptid); | |
39f77062 | 3145 | |
581e13c1 MS |
3146 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0 |
3147 | ? FALSE : TRUE; | |
3cee93ac CF |
3148 | } |
3149 | ||
2a3d5645 CF |
3150 | void |
3151 | _initialize_check_for_gdb_ini (void) | |
3152 | { | |
3153 | char *homedir; | |
3154 | if (inhibit_gdbinit) | |
3155 | return; | |
3156 | ||
3157 | homedir = getenv ("HOME"); | |
3158 | if (homedir) | |
3159 | { | |
3160 | char *p; | |
3161 | char *oldini = (char *) alloca (strlen (homedir) + | |
1270fac6 | 3162 | sizeof ("gdb.ini") + 1); |
2a3d5645 CF |
3163 | strcpy (oldini, homedir); |
3164 | p = strchr (oldini, '\0'); | |
0ba1096a | 3165 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
3166 | *p++ = '/'; |
3167 | strcpy (p, "gdb.ini"); | |
3168 | if (access (oldini, 0) == 0) | |
3169 | { | |
3170 | int len = strlen (oldini); | |
1270fac6 | 3171 | char *newini = (char *) alloca (len + 2); |
08850b56 | 3172 | |
1270fac6 | 3173 | xsnprintf (newini, len + 2, "%.*s.gdbinit", |
08850b56 | 3174 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 3175 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
3176 | } |
3177 | } | |
3178 | } | |
33605d39 | 3179 | |
2b008701 | 3180 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 3181 | these functions could not be found. */ |
2b008701 CF |
3182 | static BOOL WINAPI |
3183 | bad_DebugActiveProcessStop (DWORD w) | |
3184 | { | |
3185 | return FALSE; | |
3186 | } | |
3187 | static BOOL WINAPI | |
3188 | bad_DebugBreakProcess (HANDLE w) | |
3189 | { | |
3190 | return FALSE; | |
3191 | } | |
3192 | static BOOL WINAPI | |
3193 | bad_DebugSetProcessKillOnExit (BOOL w) | |
3194 | { | |
3195 | return FALSE; | |
3196 | } | |
3197 | static BOOL WINAPI | |
3198 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
3199 | { | |
3200 | return FALSE; | |
3201 | } | |
b3c613f2 CF |
3202 | |
3203 | #ifdef __USEWIDE | |
2b008701 | 3204 | static DWORD WINAPI |
b3c613f2 | 3205 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
3206 | { |
3207 | return 0; | |
3208 | } | |
d0d0ab16 CV |
3209 | #else |
3210 | static DWORD WINAPI | |
b3c613f2 | 3211 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
3212 | { |
3213 | return 0; | |
3214 | } | |
3215 | #endif | |
b3c613f2 | 3216 | |
2b008701 CF |
3217 | static BOOL WINAPI |
3218 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
3219 | { | |
3220 | return FALSE; | |
3221 | } | |
3222 | ||
418c6cb3 CF |
3223 | static BOOL WINAPI |
3224 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
3225 | { | |
3226 | return FALSE; | |
3227 | } | |
3228 | ||
cd44747c PM |
3229 | static BOOL WINAPI |
3230 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
3231 | { | |
3232 | f->nFont = 0; | |
3233 | return 1; | |
3234 | } | |
3235 | static COORD WINAPI | |
3236 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
3237 | { | |
3238 | COORD size; | |
3239 | size.X = 8; | |
3240 | size.Y = 12; | |
3241 | return size; | |
3242 | } | |
3243 | ||
2b008701 | 3244 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 3245 | of Windows. */ |
d603d4b3 | 3246 | |
33605d39 | 3247 | void |
2b008701 | 3248 | _initialize_loadable (void) |
33605d39 | 3249 | { |
2b008701 CF |
3250 | HMODULE hm = NULL; |
3251 | ||
43499ea3 PA |
3252 | #define GPA(m, func) \ |
3253 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
3254 | ||
2b008701 CF |
3255 | hm = LoadLibrary ("kernel32.dll"); |
3256 | if (hm) | |
33605d39 | 3257 | { |
43499ea3 PA |
3258 | GPA (hm, DebugActiveProcessStop); |
3259 | GPA (hm, DebugBreakProcess); | |
3260 | GPA (hm, DebugSetProcessKillOnExit); | |
3261 | GPA (hm, GetConsoleFontSize); | |
3262 | GPA (hm, DebugActiveProcessStop); | |
3263 | GPA (hm, GetCurrentConsoleFont); | |
2b008701 | 3264 | } |
33605d39 | 3265 | |
2b008701 | 3266 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 3267 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
3268 | if (!DebugBreakProcess) |
3269 | DebugBreakProcess = bad_DebugBreakProcess; | |
3270 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 3271 | { |
b3c613f2 CF |
3272 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
3273 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 3274 | } |
cd44747c PM |
3275 | if (!GetConsoleFontSize) |
3276 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
3277 | if (!GetCurrentConsoleFont) | |
3278 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 3279 | |
2b008701 | 3280 | /* Load optional functions used for retrieving filename information |
581e13c1 | 3281 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
3282 | hm = LoadLibrary ("psapi.dll"); |
3283 | if (hm) | |
3284 | { | |
43499ea3 PA |
3285 | GPA (hm, EnumProcessModules); |
3286 | GPA (hm, GetModuleInformation); | |
aec47d1d JB |
3287 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
3288 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
3289 | } |
3290 | ||
b3c613f2 | 3291 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
3292 | { |
3293 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 3294 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
3295 | EnumProcessModules = bad_EnumProcessModules; |
3296 | GetModuleInformation = bad_GetModuleInformation; | |
3297 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
3298 | /* This will probably fail on Windows 9x/Me. Let the user know |
3299 | that we're missing some functionality. */ | |
3300 | warning(_("\ | |
3301 | cannot automatically find executable file or library to read symbols.\n\ | |
3302 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
3303 | } |
3304 | ||
3305 | hm = LoadLibrary ("advapi32.dll"); | |
3306 | if (hm) | |
3307 | { | |
43499ea3 PA |
3308 | GPA (hm, OpenProcessToken); |
3309 | GPA (hm, LookupPrivilegeValueA); | |
3310 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 3311 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
3312 | else is needed. */ |
3313 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
3314 | || !AdjustTokenPrivileges) | |
b3c613f2 | 3315 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 3316 | } |
43499ea3 PA |
3317 | |
3318 | #undef GPA | |
33605d39 | 3319 | } |