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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
e2882c85 | 3 | Copyright (C) 1995-2018 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 | |
9bb9e8ad PM |
204 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
205 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 206 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 207 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 208 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 209 | |
a493e3e2 | 210 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
581e13c1 | 211 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 212 | |
3cee93ac | 213 | /* Thread information structure used to track information that is |
6537bb24 | 214 | not available in gdb's thread structure. */ |
876d1cd7 | 215 | typedef struct windows_thread_info_struct |
3a4b77d8 | 216 | { |
876d1cd7 | 217 | struct windows_thread_info_struct *next; |
3a4b77d8 JM |
218 | DWORD id; |
219 | HANDLE h; | |
711e434b | 220 | CORE_ADDR thread_local_base; |
3a4b77d8 | 221 | char *name; |
6537bb24 | 222 | int suspended; |
3ade5333 | 223 | int reload_context; |
3a4b77d8 | 224 | CONTEXT context; |
1e37c281 | 225 | STACKFRAME sf; |
8e860359 | 226 | } |
876d1cd7 | 227 | windows_thread_info; |
1e37c281 | 228 | |
876d1cd7 | 229 | static windows_thread_info thread_head; |
24e60978 | 230 | |
581e13c1 | 231 | /* The process and thread handles for the above context. */ |
24e60978 | 232 | |
3cee93ac CF |
233 | static DEBUG_EVENT current_event; /* The current debug event from |
234 | WaitForDebugEvent */ | |
235 | static HANDLE current_process_handle; /* Currently executing process */ | |
876d1cd7 | 236 | static windows_thread_info *current_thread; /* Info on currently selected thread */ |
349b409f | 237 | static DWORD main_thread_id; /* Thread ID of the main thread */ |
24e60978 | 238 | |
581e13c1 | 239 | /* Counts of things. */ |
24e60978 SC |
240 | static int exception_count = 0; |
241 | static int event_count = 0; | |
dfe7f3ac | 242 | static int saw_create; |
bf25528d | 243 | static int open_process_used = 0; |
24e60978 | 244 | |
581e13c1 | 245 | /* User options. */ |
24e60978 | 246 | static int new_console = 0; |
10325bc5 | 247 | #ifdef __CYGWIN__ |
09280ddf | 248 | static int cygwin_exceptions = 0; |
10325bc5 | 249 | #endif |
1e37c281 | 250 | static int new_group = 1; |
dfe7f3ac CF |
251 | static int debug_exec = 0; /* show execution */ |
252 | static int debug_events = 0; /* show events from kernel */ | |
253 | static int debug_memory = 0; /* show target memory accesses */ | |
1ef980b9 | 254 | static int debug_exceptions = 0; /* show target exceptions */ |
dfe7f3ac CF |
255 | static int useshell = 0; /* use shell for subprocesses */ |
256 | ||
7e63b4e4 | 257 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 258 | in the windows exception context vector. |
24e60978 | 259 | |
3cee93ac | 260 | It also contains the bit mask needed to load the register in question. |
24e60978 | 261 | |
7e63b4e4 JB |
262 | The contents of this table can only be computed by the units |
263 | that provide CPU-specific support for Windows native debugging. | |
264 | These units should set the table by calling | |
dc05df57 | 265 | windows_set_context_register_offsets. |
7e63b4e4 | 266 | |
24e60978 SC |
267 | One day we could read a reg, we could inspect the context we |
268 | already have loaded, if it doesn't have the bit set that we need, | |
269 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 270 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
271 | write a register, first we have to ensure that the context contains |
272 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 273 | out bit. */ |
24e60978 | 274 | |
7e63b4e4 | 275 | static const int *mappings; |
d3a09475 | 276 | |
d40dc7a8 JB |
277 | /* The function to use in order to determine whether a register is |
278 | a segment register or not. */ | |
279 | static segment_register_p_ftype *segment_register_p; | |
280 | ||
24e60978 | 281 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 282 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
283 | |
284 | struct xlate_exception | |
285 | { | |
286 | int them; | |
2ea28649 | 287 | enum gdb_signal us; |
24e60978 SC |
288 | }; |
289 | ||
24e60978 SC |
290 | static const struct xlate_exception |
291 | xlate[] = | |
292 | { | |
a493e3e2 PA |
293 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
294 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
295 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
296 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
297 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
298 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE}, | |
56db1d67 | 299 | {-1, GDB_SIGNAL_UNKNOWN}}; |
24e60978 | 300 | |
f6ac5f3d PA |
301 | |
302 | struct windows_nat_target final : public x86_nat_target<inf_child_target> | |
303 | { | |
304 | void close () override; | |
305 | ||
306 | void attach (const char *, int) override; | |
307 | ||
308 | bool attach_no_wait () override | |
309 | { return true; } | |
310 | ||
311 | void detach (inferior *, int) override; | |
312 | ||
313 | void resume (ptid_t, int , enum gdb_signal) override; | |
314 | ||
315 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
316 | ||
317 | void fetch_registers (struct regcache *, int) override; | |
318 | void store_registers (struct regcache *, int) override; | |
319 | ||
320 | enum target_xfer_status xfer_partial (enum target_object object, | |
321 | const char *annex, | |
322 | gdb_byte *readbuf, | |
323 | const gdb_byte *writebuf, | |
324 | ULONGEST offset, ULONGEST len, | |
325 | ULONGEST *xfered_len) override; | |
326 | ||
327 | void files_info () override; | |
328 | ||
329 | void kill () override; | |
330 | ||
331 | void create_inferior (const char *, const std::string &, | |
332 | char **, int) override; | |
333 | ||
334 | void mourn_inferior () override; | |
335 | ||
57810aa7 | 336 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d PA |
337 | |
338 | const char *pid_to_str (ptid_t) override; | |
339 | ||
340 | void interrupt () override; | |
341 | ||
342 | char *pid_to_exec_file (int pid) override; | |
343 | ||
344 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
345 | ||
57810aa7 | 346 | bool get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; |
f6ac5f3d PA |
347 | |
348 | const char *thread_name (struct thread_info *) override; | |
349 | }; | |
350 | ||
351 | static windows_nat_target the_windows_nat_target; | |
352 | ||
7e63b4e4 JB |
353 | /* Set the MAPPINGS static global to OFFSETS. |
354 | See the description of MAPPINGS for more details. */ | |
355 | ||
356 | void | |
dc05df57 | 357 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
358 | { |
359 | mappings = offsets; | |
360 | } | |
361 | ||
d40dc7a8 JB |
362 | /* See windows-nat.h. */ |
363 | ||
364 | void | |
365 | windows_set_segment_register_p (segment_register_p_ftype *fun) | |
366 | { | |
367 | segment_register_p = fun; | |
368 | } | |
369 | ||
fa4ba8da PM |
370 | static void |
371 | check (BOOL ok, const char *file, int line) | |
372 | { | |
373 | if (!ok) | |
d50a0ce2 CV |
374 | printf_filtered ("error return %s:%d was %u\n", file, line, |
375 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
376 | } |
377 | ||
6537bb24 PA |
378 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
379 | then also retrieve the context for this thread. If GET_CONTEXT is | |
380 | negative, then don't suspend the thread. */ | |
876d1cd7 | 381 | static windows_thread_info * |
3cee93ac | 382 | thread_rec (DWORD id, int get_context) |
24e60978 | 383 | { |
876d1cd7 | 384 | windows_thread_info *th; |
3cee93ac | 385 | |
3a4b77d8 | 386 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
387 | if (th->id == id) |
388 | { | |
6537bb24 | 389 | if (!th->suspended && get_context) |
3cee93ac | 390 | { |
8a892701 | 391 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
392 | { |
393 | if (SuspendThread (th->h) == (DWORD) -1) | |
394 | { | |
395 | DWORD err = GetLastError (); | |
22128028 | 396 | |
17617f2d EZ |
397 | /* We get Access Denied (5) when trying to suspend |
398 | threads that Windows started on behalf of the | |
399 | debuggee, usually when those threads are just | |
5d9c55d3 JT |
400 | about to exit. |
401 | We can get Invalid Handle (6) if the main thread | |
402 | has exited. */ | |
403 | if (err != ERROR_INVALID_HANDLE | |
404 | && err != ERROR_ACCESS_DENIED) | |
17617f2d EZ |
405 | warning (_("SuspendThread (tid=0x%x) failed." |
406 | " (winerr %u)"), | |
407 | (unsigned) id, (unsigned) err); | |
408 | th->suspended = -1; | |
6537bb24 | 409 | } |
17617f2d EZ |
410 | else |
411 | th->suspended = 1; | |
6537bb24 | 412 | } |
3cee93ac | 413 | else if (get_context < 0) |
6537bb24 | 414 | th->suspended = -1; |
3ade5333 | 415 | th->reload_context = 1; |
3cee93ac CF |
416 | } |
417 | return th; | |
418 | } | |
419 | ||
420 | return NULL; | |
421 | } | |
422 | ||
2dc38344 | 423 | /* Add a thread to the thread list. */ |
876d1cd7 | 424 | static windows_thread_info * |
711e434b | 425 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb) |
3cee93ac | 426 | { |
876d1cd7 | 427 | windows_thread_info *th; |
2dc38344 PA |
428 | DWORD id; |
429 | ||
430 | gdb_assert (ptid_get_tid (ptid) != 0); | |
431 | ||
432 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
433 | |
434 | if ((th = thread_rec (id, FALSE))) | |
435 | return th; | |
436 | ||
876d1cd7 | 437 | th = XCNEW (windows_thread_info); |
3cee93ac CF |
438 | th->id = id; |
439 | th->h = h; | |
711e434b | 440 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
441 | th->next = thread_head.next; |
442 | thread_head.next = th; | |
2dc38344 PA |
443 | add_thread (ptid); |
444 | /* Set the debug registers for the new thread if they are used. */ | |
fa4ba8da PM |
445 | if (debug_registers_used) |
446 | { | |
447 | /* Only change the value of the debug registers. */ | |
448 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
449 | CHECK (GetThreadContext (th->h, &th->context)); | |
450 | th->context.Dr0 = dr[0]; | |
451 | th->context.Dr1 = dr[1]; | |
452 | th->context.Dr2 = dr[2]; | |
453 | th->context.Dr3 = dr[3]; | |
6537bb24 | 454 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
455 | th->context.Dr7 = dr[7]; |
456 | CHECK (SetThreadContext (th->h, &th->context)); | |
457 | th->context.ContextFlags = 0; | |
458 | } | |
3cee93ac | 459 | return th; |
24e60978 SC |
460 | } |
461 | ||
26c4b26f | 462 | /* Clear out any old thread list and reinitialize it to a |
581e13c1 | 463 | pristine state. */ |
24e60978 | 464 | static void |
dc05df57 | 465 | windows_init_thread_list (void) |
24e60978 | 466 | { |
876d1cd7 | 467 | windows_thread_info *th = &thread_head; |
3cee93ac | 468 | |
dc05df57 | 469 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
470 | init_thread_list (); |
471 | while (th->next != NULL) | |
24e60978 | 472 | { |
876d1cd7 | 473 | windows_thread_info *here = th->next; |
3cee93ac | 474 | th->next = here->next; |
b8c9b27d | 475 | xfree (here); |
24e60978 | 476 | } |
059198c1 | 477 | thread_head.next = NULL; |
3cee93ac CF |
478 | } |
479 | ||
581e13c1 | 480 | /* Delete a thread from the list of threads. */ |
3cee93ac | 481 | static void |
e0ea48a0 | 482 | windows_delete_thread (ptid_t ptid, DWORD exit_code) |
3cee93ac | 483 | { |
876d1cd7 | 484 | windows_thread_info *th; |
2dc38344 PA |
485 | DWORD id; |
486 | ||
487 | gdb_assert (ptid_get_tid (ptid) != 0); | |
488 | ||
489 | id = ptid_get_tid (ptid); | |
3cee93ac CF |
490 | |
491 | if (info_verbose) | |
2dc38344 | 492 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid)); |
e0ea48a0 EZ |
493 | else if (print_thread_events && id != main_thread_id) |
494 | printf_unfiltered (_("[%s exited with code %u]\n"), | |
564eac42 | 495 | target_pid_to_str (ptid), (unsigned) exit_code); |
2dc38344 | 496 | delete_thread (ptid); |
3cee93ac CF |
497 | |
498 | for (th = &thread_head; | |
499 | th->next != NULL && th->next->id != id; | |
500 | th = th->next) | |
501 | continue; | |
502 | ||
503 | if (th->next != NULL) | |
24e60978 | 504 | { |
876d1cd7 | 505 | windows_thread_info *here = th->next; |
3cee93ac | 506 | th->next = here->next; |
24cdb46e | 507 | xfree (here->name); |
b8c9b27d | 508 | xfree (here); |
24e60978 SC |
509 | } |
510 | } | |
511 | ||
3cee93ac | 512 | static void |
3de88e9a SM |
513 | do_windows_fetch_inferior_registers (struct regcache *regcache, |
514 | windows_thread_info *th, int r) | |
24e60978 | 515 | { |
3de88e9a | 516 | char *context_offset = ((char *) &th->context) + mappings[r]; |
ac7936df | 517 | struct gdbarch *gdbarch = regcache->arch (); |
20a6ec49 | 518 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
1e37c281 | 519 | long l; |
6c7de422 | 520 | |
3de88e9a | 521 | if (th->reload_context) |
3ade5333 | 522 | { |
f20c58f5 | 523 | #ifdef __CYGWIN__ |
a244bdca CF |
524 | if (have_saved_context) |
525 | { | |
581e13c1 MS |
526 | /* Lie about where the program actually is stopped since |
527 | cygwin has informed us that we should consider the signal | |
528 | to have occurred at another location which is stored in | |
529 | "saved_context. */ | |
3de88e9a | 530 | memcpy (&th->context, &saved_context, |
581e13c1 | 531 | __COPY_CONTEXT_SIZE); |
a244bdca CF |
532 | have_saved_context = 0; |
533 | } | |
534 | else | |
cb832706 | 535 | #endif |
a244bdca | 536 | { |
a244bdca | 537 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 538 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 539 | /* Copy dr values from that thread. |
581e13c1 MS |
540 | But only if there were not modified since last stop. |
541 | PR gdb/2388 */ | |
88616312 PM |
542 | if (!debug_registers_changed) |
543 | { | |
544 | dr[0] = th->context.Dr0; | |
545 | dr[1] = th->context.Dr1; | |
546 | dr[2] = th->context.Dr2; | |
547 | dr[3] = th->context.Dr3; | |
548 | dr[6] = th->context.Dr6; | |
549 | dr[7] = th->context.Dr7; | |
550 | } | |
a244bdca | 551 | } |
3de88e9a | 552 | th->reload_context = 0; |
3ade5333 CF |
553 | } |
554 | ||
20a6ec49 | 555 | if (r == I387_FISEG_REGNUM (tdep)) |
1e37c281 | 556 | { |
8e860359 | 557 | l = *((long *) context_offset) & 0xffff; |
73e1c03f | 558 | regcache->raw_supply (r, (char *) &l); |
1e37c281 | 559 | } |
20a6ec49 | 560 | else if (r == I387_FOP_REGNUM (tdep)) |
1e37c281 | 561 | { |
8e860359 | 562 | l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); |
73e1c03f | 563 | regcache->raw_supply (r, (char *) &l); |
1e37c281 | 564 | } |
d40dc7a8 JB |
565 | else if (segment_register_p (r)) |
566 | { | |
567 | /* GDB treats segment registers as 32bit registers, but they are | |
568 | in fact only 16 bits long. Make sure we do not read extra | |
569 | bits from our source buffer. */ | |
570 | l = *((long *) context_offset) & 0xffff; | |
73e1c03f | 571 | regcache->raw_supply (r, (char *) &l); |
d40dc7a8 | 572 | } |
1e37c281 | 573 | else if (r >= 0) |
73e1c03f | 574 | regcache->raw_supply (r, context_offset); |
3cee93ac | 575 | else |
24e60978 | 576 | { |
20a6ec49 | 577 | for (r = 0; r < gdbarch_num_regs (gdbarch); r++) |
3de88e9a | 578 | do_windows_fetch_inferior_registers (regcache, th, r); |
24e60978 | 579 | } |
3cee93ac CF |
580 | } |
581 | ||
f6ac5f3d PA |
582 | void |
583 | windows_nat_target::fetch_registers (struct regcache *regcache, int r) | |
3cee93ac | 584 | { |
222312d3 | 585 | DWORD pid = ptid_get_tid (regcache->ptid ()); |
3de88e9a SM |
586 | windows_thread_info *th = thread_rec (pid, TRUE); |
587 | ||
588 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 589 | thread id in its events. */ |
3de88e9a SM |
590 | if (th != NULL) |
591 | do_windows_fetch_inferior_registers (regcache, th, r); | |
3cee93ac CF |
592 | } |
593 | ||
594 | static void | |
3de88e9a SM |
595 | do_windows_store_inferior_registers (const struct regcache *regcache, |
596 | windows_thread_info *th, int r) | |
3cee93ac | 597 | { |
3de88e9a | 598 | if (r >= 0) |
56be3814 | 599 | regcache_raw_collect (regcache, r, |
3de88e9a | 600 | ((char *) &th->context) + mappings[r]); |
24e60978 SC |
601 | else |
602 | { | |
ac7936df | 603 | for (r = 0; r < gdbarch_num_regs (regcache->arch ()); r++) |
3de88e9a | 604 | do_windows_store_inferior_registers (regcache, th, r); |
24e60978 SC |
605 | } |
606 | } | |
607 | ||
3de88e9a SM |
608 | /* Store a new register value into the context of the thread tied to |
609 | REGCACHE. */ | |
f6ac5f3d PA |
610 | |
611 | void | |
612 | windows_nat_target::store_registers (struct regcache *regcache, int r) | |
3cee93ac | 613 | { |
222312d3 | 614 | DWORD pid = ptid_get_tid (regcache->ptid ()); |
3de88e9a SM |
615 | windows_thread_info *th = thread_rec (pid, TRUE); |
616 | ||
617 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 618 | thread id in its events. */ |
3de88e9a SM |
619 | if (th != NULL) |
620 | do_windows_store_inferior_registers (regcache, th, r); | |
3cee93ac | 621 | } |
24e60978 | 622 | |
450005e7 | 623 | /* Encapsulate the information required in a call to |
581e13c1 | 624 | symbol_file_add_args. */ |
8a892701 CF |
625 | struct safe_symbol_file_add_args |
626 | { | |
627 | char *name; | |
628 | int from_tty; | |
4f7ae6f5 | 629 | section_addr_info *addrs; |
8a892701 CF |
630 | int mainline; |
631 | int flags; | |
7c5c87c0 | 632 | struct ui_file *err, *out; |
8a892701 CF |
633 | struct objfile *ret; |
634 | }; | |
635 | ||
581e13c1 | 636 | /* Maintain a linked list of "so" information. */ |
d0e449a1 | 637 | struct lm_info_windows : public lm_info_base |
02e423b9 | 638 | { |
f8fdb78e | 639 | LPVOID load_addr = 0; |
3ee6f623 CF |
640 | }; |
641 | ||
642 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 643 | |
de1b3c3d | 644 | static struct so_list * |
dc05df57 | 645 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 646 | { |
3ee6f623 | 647 | struct so_list *so; |
d0d0ab16 CV |
648 | char *p; |
649 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
650 | char buf[__PMAX]; |
651 | char cwd[__PMAX]; | |
3f8ad85b CF |
652 | WIN32_FIND_DATA w32_fd; |
653 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 654 | |
6badb179 CF |
655 | if (h == INVALID_HANDLE_VALUE) |
656 | strcpy (buf, name); | |
657 | else | |
3f8ad85b | 658 | { |
c914e0cc CF |
659 | FindClose (h); |
660 | strcpy (buf, name); | |
661 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
662 | { | |
663 | p = strrchr (buf, '\\'); | |
664 | if (p) | |
665 | p[1] = '\0'; | |
666 | SetCurrentDirectory (buf); | |
667 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
668 | SetCurrentDirectory (cwd); | |
669 | } | |
3f8ad85b | 670 | } |
3ee6f623 CF |
671 | if (strcasecmp (buf, "ntdll.dll") == 0) |
672 | { | |
673 | GetSystemDirectory (buf, sizeof (buf)); | |
674 | strcat (buf, "\\ntdll.dll"); | |
675 | } | |
d0d0ab16 | 676 | #else |
b3c613f2 | 677 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 678 | |
b3c613f2 | 679 | buf[0] = 0; |
d0d0ab16 CV |
680 | if (access (name, F_OK) != 0) |
681 | { | |
682 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 683 | #ifdef __USEWIDE |
d0d0ab16 CV |
684 | { |
685 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
686 | wcscat (buf, L"\\ntdll.dll"); | |
687 | } | |
b3c613f2 CF |
688 | #else |
689 | { | |
690 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
691 | strcat (buf, "\\ntdll.dll"); | |
692 | } | |
693 | #endif | |
d0d0ab16 CV |
694 | } |
695 | #endif | |
41bf6aca | 696 | so = XCNEW (struct so_list); |
f8fdb78e | 697 | lm_info_windows *li = new lm_info_windows; |
d0e449a1 SM |
698 | so->lm_info = li; |
699 | li->load_addr = load_addr; | |
de1b3c3d | 700 | strcpy (so->so_original_name, name); |
10325bc5 PA |
701 | #ifndef __CYGWIN__ |
702 | strcpy (so->so_name, buf); | |
703 | #else | |
d0d0ab16 CV |
704 | if (buf[0]) |
705 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
706 | SO_NAME_MAX_PATH_SIZE); | |
707 | else | |
708 | { | |
60c5c021 | 709 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
710 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
711 | { | |
712 | strcpy (so->so_name, rname); | |
713 | free (rname); | |
714 | } | |
715 | else | |
716 | error (_("dll path too long")); | |
717 | } | |
de1b3c3d PA |
718 | /* Record cygwin1.dll .text start/end. */ |
719 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
720 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
721 | { | |
de1b3c3d PA |
722 | asection *text = NULL; |
723 | CORE_ADDR text_vma; | |
8e860359 | 724 | |
192b62ce | 725 | gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386", -1)); |
a244bdca | 726 | |
192b62ce | 727 | if (abfd == NULL) |
de1b3c3d PA |
728 | return so; |
729 | ||
192b62ce TT |
730 | if (bfd_check_format (abfd.get (), bfd_object)) |
731 | text = bfd_get_section_by_name (abfd.get (), ".text"); | |
de1b3c3d PA |
732 | |
733 | if (!text) | |
192b62ce | 734 | return so; |
de1b3c3d | 735 | |
7a9dd1b2 | 736 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 737 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
738 | file header and the section alignment. */ |
739 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
740 | load_addr + 0x1000); | |
192b62ce TT |
741 | cygwin_load_end = cygwin_load_start + bfd_section_size (abfd.get (), |
742 | text); | |
de1b3c3d | 743 | } |
10325bc5 | 744 | #endif |
de1b3c3d PA |
745 | |
746 | return so; | |
8e860359 CF |
747 | } |
748 | ||
3ee6f623 | 749 | static char * |
dfe7f3ac CF |
750 | get_image_name (HANDLE h, void *address, int unicode) |
751 | { | |
d0d0ab16 | 752 | #ifdef __CYGWIN__ |
b3c613f2 | 753 | static char buf[__PMAX]; |
d0d0ab16 | 754 | #else |
b3c613f2 | 755 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 756 | #endif |
dfe7f3ac CF |
757 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
758 | char *address_ptr; | |
759 | int len = 0; | |
760 | char b[2]; | |
5732a500 | 761 | SIZE_T done; |
dfe7f3ac CF |
762 | |
763 | /* Attempt to read the name of the dll that was detected. | |
764 | This is documented to work only when actively debugging | |
581e13c1 | 765 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
766 | if (address == NULL) |
767 | return NULL; | |
768 | ||
dfe7f3ac | 769 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
770 | address isn't null. */ |
771 | if (!ReadProcessMemory (h, address, &address_ptr, | |
772 | sizeof (address_ptr), &done) | |
6f17862b | 773 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
774 | return NULL; |
775 | ||
581e13c1 | 776 | /* Find the length of the string. */ |
6f17862b CF |
777 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
778 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
779 | continue; | |
dfe7f3ac CF |
780 | |
781 | if (!unicode) | |
782 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
783 | else | |
784 | { | |
785 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
786 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
787 | &done); | |
d0d0ab16 | 788 | #ifdef __CYGWIN__ |
b3c613f2 | 789 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
790 | #else |
791 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
792 | 0, 0); | |
793 | #endif | |
dfe7f3ac CF |
794 | } |
795 | ||
796 | return buf; | |
797 | } | |
798 | ||
1cd9feab JB |
799 | /* Handle a DLL load event, and return 1. |
800 | ||
801 | This function assumes that this event did not occur during inferior | |
802 | initialization, where their event info may be incomplete (see | |
803 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
804 | on how we handle DLL loading during that phase). */ | |
805 | ||
bf469271 PA |
806 | static void |
807 | handle_load_dll () | |
24e60978 | 808 | { |
3a4b77d8 | 809 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
1cd9feab | 810 | char *dll_name; |
24e60978 | 811 | |
94481b8c JB |
812 | /* Try getting the DLL name via the lpImageName field of the event. |
813 | Note that Microsoft documents this fields as strictly optional, | |
814 | in the sense that it might be NULL. And the first DLL event in | |
815 | particular is explicitly documented as "likely not pass[ed]" | |
816 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
817 | dll_name = get_image_name (current_process_handle, |
818 | event->lpImageName, event->fUnicode); | |
3cee93ac | 819 | if (!dll_name) |
bf469271 | 820 | return; |
3cee93ac | 821 | |
dc05df57 | 822 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 823 | solib_end = solib_end->next; |
450005e7 | 824 | |
d0e449a1 SM |
825 | lm_info_windows *li = (lm_info_windows *) solib_end->lm_info; |
826 | ||
a74ce742 | 827 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
d0e449a1 | 828 | host_address_to_string (li->load_addr))); |
450005e7 CF |
829 | } |
830 | ||
3ee6f623 | 831 | static void |
dc05df57 | 832 | windows_free_so (struct so_list *so) |
3ee6f623 | 833 | { |
f8fdb78e SM |
834 | lm_info_windows *li = (lm_info_windows *) so->lm_info; |
835 | ||
836 | delete li; | |
de1b3c3d | 837 | xfree (so); |
3cb8e7f6 CF |
838 | } |
839 | ||
3be75f87 JB |
840 | /* Handle a DLL unload event. |
841 | Return 1 if successful, or zero otherwise. | |
842 | ||
843 | This function assumes that this event did not occur during inferior | |
844 | initialization, where their event info may be incomplete (see | |
845 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
846 | on how we handle DLL loading during that phase). */ | |
847 | ||
bf469271 PA |
848 | static void |
849 | handle_unload_dll () | |
d3ff4a77 | 850 | { |
d3653bf6 | 851 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 852 | struct so_list *so; |
d3ff4a77 CF |
853 | |
854 | for (so = &solib_start; so->next != NULL; so = so->next) | |
d0e449a1 SM |
855 | { |
856 | lm_info_windows *li_next = (lm_info_windows *) so->next->lm_info; | |
a25cd31f | 857 | |
d0e449a1 SM |
858 | if (li_next->load_addr == lpBaseOfDll) |
859 | { | |
860 | struct so_list *sodel = so->next; | |
7488902c | 861 | |
d0e449a1 SM |
862 | so->next = sodel->next; |
863 | if (!so->next) | |
864 | solib_end = so; | |
865 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); | |
866 | ||
867 | windows_free_so (sodel); | |
bf469271 | 868 | return; |
d0e449a1 SM |
869 | } |
870 | } | |
3929abe9 | 871 | |
ecc13e53 JB |
872 | /* We did not find any DLL that was previously loaded at this address, |
873 | so register a complaint. We do not report an error, because we have | |
874 | observed that this may be happening under some circumstances. For | |
875 | instance, running 32bit applications on x64 Windows causes us to receive | |
876 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
877 | events are apparently caused by the WOW layer, the interface between | |
878 | 32bit and 64bit worlds). */ | |
b98664d3 | 879 | complaint (_("dll starting at %s not found."), |
ecc13e53 | 880 | host_address_to_string (lpBaseOfDll)); |
bf469271 PA |
881 | } |
882 | ||
883 | /* Call FUNC wrapped in a TRY/CATCH that swallows all GDB | |
884 | exceptions. */ | |
d3ff4a77 | 885 | |
bf469271 PA |
886 | static void |
887 | catch_errors (void (*func) ()) | |
888 | { | |
889 | TRY | |
890 | { | |
891 | func (); | |
892 | } | |
893 | CATCH (ex, RETURN_MASK_ALL) | |
894 | { | |
895 | exception_print (gdb_stderr, ex); | |
896 | } | |
897 | END_CATCH | |
d3ff4a77 CF |
898 | } |
899 | ||
581e13c1 | 900 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 901 | static void |
dc05df57 | 902 | windows_clear_solib (void) |
450005e7 | 903 | { |
450005e7 CF |
904 | solib_start.next = NULL; |
905 | solib_end = &solib_start; | |
450005e7 | 906 | } |
295732ea | 907 | |
463888ab | 908 | static void |
0b39b52e | 909 | signal_event_command (const char *args, int from_tty) |
463888ab РИ |
910 | { |
911 | uintptr_t event_id = 0; | |
912 | char *endargs = NULL; | |
913 | ||
914 | if (args == NULL) | |
915 | error (_("signal-event requires an argument (integer event id)")); | |
916 | ||
917 | event_id = strtoumax (args, &endargs, 10); | |
918 | ||
919 | if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || | |
920 | ((HANDLE) event_id == INVALID_HANDLE_VALUE)) | |
921 | error (_("Failed to convert `%s' to event id"), args); | |
922 | ||
923 | SetEvent ((HANDLE) event_id); | |
924 | CloseHandle ((HANDLE) event_id); | |
925 | } | |
926 | ||
3cee93ac CF |
927 | /* Handle DEBUG_STRING output from child process. |
928 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 929 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
930 | static int |
931 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
932 | { | |
e83e4e24 | 933 | gdb::unique_xmalloc_ptr<char> s; |
a244bdca | 934 | int retval = 0; |
3cee93ac CF |
935 | |
936 | if (!target_read_string | |
2c647436 | 937 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
e83e4e24 TT |
938 | &s, 1024, 0) |
939 | || !s || !*(s.get ())) | |
a244bdca | 940 | /* nothing to do */; |
e83e4e24 | 941 | else if (!startswith (s.get (), _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 942 | { |
10325bc5 | 943 | #ifdef __CYGWIN__ |
e83e4e24 | 944 | if (!startswith (s.get (), "cYg")) |
10325bc5 | 945 | #endif |
040ea00b | 946 | { |
e83e4e24 | 947 | char *p = strchr (s.get (), '\0'); |
040ea00b | 948 | |
e83e4e24 | 949 | if (p > s.get () && *--p == '\n') |
040ea00b | 950 | *p = '\0'; |
e83e4e24 | 951 | warning (("%s"), s.get ()); |
040ea00b | 952 | } |
3cee93ac | 953 | } |
f20c58f5 | 954 | #ifdef __CYGWIN__ |
d3a09475 | 955 | else |
3cee93ac | 956 | { |
581e13c1 MS |
957 | /* Got a cygwin signal marker. A cygwin signal is followed by |
958 | the signal number itself and then optionally followed by the | |
959 | thread id and address to saved context within the DLL. If | |
960 | these are supplied, then the given thread is assumed to have | |
961 | issued the signal and the context from the thread is assumed | |
962 | to be stored at the given address in the inferior. Tell gdb | |
963 | to treat this like a real signal. */ | |
3cee93ac | 964 | char *p; |
e83e4e24 | 965 | int sig = strtol (s.get () + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0ae534d2 | 966 | gdb_signal gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 967 | |
0714f9bf SS |
968 | ourstatus->value.sig = gotasig; |
969 | if (gotasig) | |
a244bdca CF |
970 | { |
971 | LPCVOID x; | |
2c15ef43 | 972 | SIZE_T n; |
c62fa0e2 | 973 | |
a244bdca CF |
974 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
975 | retval = strtoul (p, &p, 0); | |
976 | if (!retval) | |
977 | retval = main_thread_id; | |
40653b35 | 978 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 979 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
980 | &saved_context, |
981 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
982 | && n == __COPY_CONTEXT_SIZE) |
983 | have_saved_context = 1; | |
a244bdca | 984 | } |
3cee93ac | 985 | } |
cb832706 | 986 | #endif |
3cee93ac | 987 | |
a244bdca | 988 | return retval; |
3cee93ac | 989 | } |
24e60978 | 990 | |
c1748f97 PM |
991 | static int |
992 | display_selector (HANDLE thread, DWORD sel) | |
993 | { | |
994 | LDT_ENTRY info; | |
995 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
996 | { | |
997 | int base, limit; | |
d50a0ce2 | 998 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 999 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
1000 | { |
1001 | puts_filtered ("Segment not present\n"); | |
1002 | return 0; | |
1003 | } | |
c1748f97 PM |
1004 | base = (info.HighWord.Bits.BaseHi << 24) + |
1005 | (info.HighWord.Bits.BaseMid << 16) | |
1006 | + info.BaseLow; | |
1007 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
1008 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 1009 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
1010 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
1011 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 1012 | puts_filtered(" 32-bit "); |
c1748f97 | 1013 | else |
baa93fa6 | 1014 | puts_filtered(" 16-bit "); |
c1748f97 PM |
1015 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1016 | { | |
1017 | case 0: | |
baa93fa6 CF |
1018 | puts_filtered ("Data (Read-Only, Exp-up"); |
1019 | break; | |
c1748f97 | 1020 | case 1: |
baa93fa6 CF |
1021 | puts_filtered ("Data (Read/Write, Exp-up"); |
1022 | break; | |
c1748f97 | 1023 | case 2: |
baa93fa6 CF |
1024 | puts_filtered ("Unused segment ("); |
1025 | break; | |
c1748f97 | 1026 | case 3: |
baa93fa6 CF |
1027 | puts_filtered ("Data (Read/Write, Exp-down"); |
1028 | break; | |
c1748f97 | 1029 | case 4: |
baa93fa6 CF |
1030 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1031 | break; | |
c1748f97 | 1032 | case 5: |
baa93fa6 | 1033 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1034 | break; |
1035 | case 6: | |
baa93fa6 | 1036 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1037 | break; |
1038 | case 7: | |
baa93fa6 | 1039 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1040 | break; |
1041 | default: | |
1042 | printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type); | |
1043 | } | |
1044 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1045 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1046 | puts_filtered (")\n"); |
1047 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1048 | puts_filtered("System selector "); | |
1049 | printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl); | |
1050 | if (info.HighWord.Bits.Granularity) | |
baa93fa6 | 1051 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1052 | else |
1053 | puts_filtered ("Byte granular.\n"); | |
1054 | return 1; | |
1055 | } | |
1056 | else | |
1057 | { | |
5572ce1f PM |
1058 | DWORD err = GetLastError (); |
1059 | if (err == ERROR_NOT_SUPPORTED) | |
1060 | printf_filtered ("Function not supported\n"); | |
1061 | else | |
d50a0ce2 | 1062 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1063 | return 0; |
1064 | } | |
1065 | } | |
1066 | ||
1067 | static void | |
5fed81ff | 1068 | display_selectors (const char * args, int from_tty) |
c1748f97 PM |
1069 | { |
1070 | if (!current_thread) | |
1071 | { | |
1072 | puts_filtered ("Impossible to display selectors now.\n"); | |
1073 | return; | |
1074 | } | |
1075 | if (!args) | |
1076 | { | |
1077 | ||
1078 | puts_filtered ("Selector $cs\n"); | |
1079 | display_selector (current_thread->h, | |
baa93fa6 | 1080 | current_thread->context.SegCs); |
c1748f97 PM |
1081 | puts_filtered ("Selector $ds\n"); |
1082 | display_selector (current_thread->h, | |
baa93fa6 | 1083 | current_thread->context.SegDs); |
c1748f97 PM |
1084 | puts_filtered ("Selector $es\n"); |
1085 | display_selector (current_thread->h, | |
baa93fa6 | 1086 | current_thread->context.SegEs); |
c1748f97 PM |
1087 | puts_filtered ("Selector $ss\n"); |
1088 | display_selector (current_thread->h, | |
baa93fa6 | 1089 | current_thread->context.SegSs); |
c1748f97 PM |
1090 | puts_filtered ("Selector $fs\n"); |
1091 | display_selector (current_thread->h, | |
1092 | current_thread->context.SegFs); | |
1093 | puts_filtered ("Selector $gs\n"); | |
1094 | display_selector (current_thread->h, | |
baa93fa6 | 1095 | current_thread->context.SegGs); |
c1748f97 PM |
1096 | } |
1097 | else | |
1098 | { | |
1099 | int sel; | |
1100 | sel = parse_and_eval_long (args); | |
1101 | printf_filtered ("Selector \"%s\"\n",args); | |
1102 | display_selector (current_thread->h, sel); | |
1103 | } | |
1104 | } | |
1105 | ||
7393af7c | 1106 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1107 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1108 | host_address_to_string (\ | |
1109 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1110 | |
24cdb46e | 1111 | static handle_exception_result |
450005e7 | 1112 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1113 | { |
24cdb46e РИ |
1114 | EXCEPTION_RECORD *rec = ¤t_event.u.Exception.ExceptionRecord; |
1115 | DWORD code = rec->ExceptionCode; | |
1116 | handle_exception_result result = HANDLE_EXCEPTION_HANDLED; | |
3cee93ac | 1117 | |
29fe111d | 1118 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1119 | |
581e13c1 | 1120 | /* Record the context of the current thread. */ |
c25b7cce | 1121 | thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1122 | |
29fe111d | 1123 | switch (code) |
24e60978 | 1124 | { |
1ef980b9 | 1125 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c | 1126 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
a493e3e2 | 1127 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
10325bc5 | 1128 | #ifdef __CYGWIN__ |
8da8e0b3 | 1129 | { |
581e13c1 MS |
1130 | /* See if the access violation happened within the cygwin DLL |
1131 | itself. Cygwin uses a kind of exception handling to deal | |
1132 | with passed-in invalid addresses. gdb should not treat | |
1133 | these as real SEGVs since they will be silently handled by | |
1134 | cygwin. A real SEGV will (theoretically) be caught by | |
1135 | cygwin later in the process and will be sent as a | |
1136 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1137 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1138 | const char *fn; |
24cdb46e | 1139 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) rec->ExceptionAddress; |
581e13c1 MS |
1140 | |
1141 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1142 | && addr < cygwin_load_end)) | |
a244bdca | 1143 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
61012eef | 1144 | && startswith (fn, "KERNEL32!IsBad"))) |
24cdb46e | 1145 | return HANDLE_EXCEPTION_UNHANDLED; |
8da8e0b3 | 1146 | } |
10325bc5 | 1147 | #endif |
7393af7c PM |
1148 | break; |
1149 | case STATUS_STACK_OVERFLOW: | |
1150 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
a493e3e2 | 1151 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
7393af7c PM |
1152 | break; |
1153 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1154 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
a493e3e2 | 1155 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1156 | break; |
1157 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1158 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
a493e3e2 | 1159 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1160 | break; |
1161 | case STATUS_FLOAT_INEXACT_RESULT: | |
1162 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
a493e3e2 | 1163 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1164 | break; |
1165 | case STATUS_FLOAT_INVALID_OPERATION: | |
1166 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
a493e3e2 | 1167 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1168 | break; |
1169 | case STATUS_FLOAT_OVERFLOW: | |
1170 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
a493e3e2 | 1171 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1172 | break; |
1173 | case STATUS_FLOAT_STACK_CHECK: | |
1174 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
a493e3e2 | 1175 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 | 1176 | break; |
3b7c8b74 | 1177 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c | 1178 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
a493e3e2 | 1179 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1180 | break; |
3b7c8b74 | 1181 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c | 1182 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
a493e3e2 | 1183 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1184 | break; |
3b7c8b74 | 1185 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1186 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
a493e3e2 | 1187 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
3b7c8b74 | 1188 | break; |
7393af7c PM |
1189 | case STATUS_INTEGER_OVERFLOW: |
1190 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
a493e3e2 | 1191 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 SC |
1192 | break; |
1193 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1194 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
a493e3e2 | 1195 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 SC |
1196 | break; |
1197 | case DBG_CONTROL_C: | |
7393af7c | 1198 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
a493e3e2 | 1199 | ourstatus->value.sig = GDB_SIGNAL_INT; |
5b421780 PM |
1200 | break; |
1201 | case DBG_CONTROL_BREAK: | |
7393af7c | 1202 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
a493e3e2 | 1203 | ourstatus->value.sig = GDB_SIGNAL_INT; |
1ef980b9 SC |
1204 | break; |
1205 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1206 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
a493e3e2 | 1207 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 | 1208 | break; |
8227c82d | 1209 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c | 1210 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
a493e3e2 | 1211 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1212 | break; |
1213 | case EXCEPTION_PRIV_INSTRUCTION: | |
1214 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
a493e3e2 | 1215 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1216 | break; |
1217 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1218 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
a493e3e2 | 1219 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
8227c82d | 1220 | break; |
24cdb46e РИ |
1221 | case MS_VC_EXCEPTION: |
1222 | if (rec->NumberParameters >= 3 | |
1223 | && (rec->ExceptionInformation[0] & 0xffffffff) == 0x1000) | |
1224 | { | |
1225 | DWORD named_thread_id; | |
1226 | windows_thread_info *named_thread; | |
1227 | CORE_ADDR thread_name_target; | |
1228 | ||
1229 | DEBUG_EXCEPTION_SIMPLE ("MS_VC_EXCEPTION"); | |
1230 | ||
1231 | thread_name_target = rec->ExceptionInformation[1]; | |
1232 | named_thread_id = (DWORD) (0xffffffff & rec->ExceptionInformation[2]); | |
1233 | ||
1234 | if (named_thread_id == (DWORD) -1) | |
1235 | named_thread_id = current_event.dwThreadId; | |
1236 | ||
1237 | named_thread = thread_rec (named_thread_id, 0); | |
1238 | if (named_thread != NULL) | |
1239 | { | |
1240 | int thread_name_len; | |
e83e4e24 | 1241 | gdb::unique_xmalloc_ptr<char> thread_name; |
24cdb46e РИ |
1242 | |
1243 | thread_name_len = target_read_string (thread_name_target, | |
1244 | &thread_name, 1025, NULL); | |
1245 | if (thread_name_len > 0) | |
1246 | { | |
e83e4e24 | 1247 | thread_name.get ()[thread_name_len - 1] = '\0'; |
24cdb46e | 1248 | xfree (named_thread->name); |
e83e4e24 | 1249 | named_thread->name = thread_name.release (); |
24cdb46e | 1250 | } |
24cdb46e РИ |
1251 | } |
1252 | ourstatus->value.sig = GDB_SIGNAL_TRAP; | |
1253 | result = HANDLE_EXCEPTION_IGNORED; | |
1254 | break; | |
1255 | } | |
e7ec8713 TT |
1256 | /* treat improperly formed exception as unknown */ |
1257 | /* FALLTHROUGH */ | |
1ef980b9 | 1258 | default: |
581e13c1 | 1259 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1260 | if (current_event.u.Exception.dwFirstChance) |
24cdb46e | 1261 | return HANDLE_EXCEPTION_UNHANDLED; |
d50a0ce2 CV |
1262 | printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n", |
1263 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
a74ce742 PM |
1264 | host_address_to_string ( |
1265 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
a493e3e2 | 1266 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
1ef980b9 | 1267 | break; |
24e60978 | 1268 | } |
24e60978 | 1269 | exception_count++; |
7393af7c | 1270 | last_sig = ourstatus->value.sig; |
24cdb46e | 1271 | return result; |
24e60978 SC |
1272 | } |
1273 | ||
17617f2d EZ |
1274 | /* Resume thread specified by ID, or all artificially suspended |
1275 | threads, if we are continuing execution. KILLED non-zero means we | |
1276 | have killed the inferior, so we should ignore weird errors due to | |
1277 | threads shutting down. */ | |
3cee93ac | 1278 | static BOOL |
17617f2d | 1279 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac CF |
1280 | { |
1281 | int i; | |
876d1cd7 | 1282 | windows_thread_info *th; |
3cee93ac CF |
1283 | BOOL res; |
1284 | ||
0c3d84be | 1285 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n", |
d50a0ce2 CV |
1286 | (unsigned) current_event.dwProcessId, |
1287 | (unsigned) current_event.dwThreadId, | |
dfe7f3ac | 1288 | continue_status == DBG_CONTINUE ? |
7393af7c | 1289 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1290 | |
1291 | for (th = &thread_head; (th = th->next) != NULL;) | |
1292 | if ((id == -1 || id == (int) th->id) | |
1293 | && th->suspended) | |
1294 | { | |
1295 | if (debug_registers_changed) | |
1296 | { | |
1297 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1298 | th->context.Dr0 = dr[0]; | |
1299 | th->context.Dr1 = dr[1]; | |
1300 | th->context.Dr2 = dr[2]; | |
1301 | th->context.Dr3 = dr[3]; | |
1302 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1303 | th->context.Dr7 = dr[7]; | |
1304 | } | |
1305 | if (th->context.ContextFlags) | |
1306 | { | |
17617f2d EZ |
1307 | DWORD ec = 0; |
1308 | ||
1309 | if (GetExitCodeThread (th->h, &ec) | |
1310 | && ec == STILL_ACTIVE) | |
1311 | { | |
1312 | BOOL status = SetThreadContext (th->h, &th->context); | |
1313 | ||
1314 | if (!killed) | |
1315 | CHECK (status); | |
1316 | } | |
6537bb24 PA |
1317 | th->context.ContextFlags = 0; |
1318 | } | |
1319 | if (th->suspended > 0) | |
1320 | (void) ResumeThread (th->h); | |
1321 | th->suspended = 0; | |
1322 | } | |
1323 | ||
0714f9bf SS |
1324 | res = ContinueDebugEvent (current_event.dwProcessId, |
1325 | current_event.dwThreadId, | |
1326 | continue_status); | |
3cee93ac | 1327 | |
68ffc902 JT |
1328 | if (!res) |
1329 | error (_("Failed to resume program execution" | |
1330 | " (ContinueDebugEvent failed, error %u)"), | |
1331 | (unsigned int) GetLastError ()); | |
1332 | ||
fa4ba8da | 1333 | debug_registers_changed = 0; |
3cee93ac CF |
1334 | return res; |
1335 | } | |
1336 | ||
d6dc8049 CF |
1337 | /* Called in pathological case where Windows fails to send a |
1338 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1339 | static DWORD |
5439edaa | 1340 | fake_create_process (void) |
3ade5333 CF |
1341 | { |
1342 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1343 | current_event.dwProcessId); | |
bf25528d CF |
1344 | if (current_process_handle != NULL) |
1345 | open_process_used = 1; | |
1346 | else | |
1347 | { | |
d50a0ce2 CV |
1348 | error (_("OpenProcess call failed, GetLastError = %u"), |
1349 | (unsigned) GetLastError ()); | |
bf25528d CF |
1350 | /* We can not debug anything in that case. */ |
1351 | } | |
3ade5333 | 1352 | main_thread_id = current_event.dwThreadId; |
711e434b PM |
1353 | current_thread = windows_add_thread ( |
1354 | ptid_build (current_event.dwProcessId, 0, | |
1355 | current_event.dwThreadId), | |
1356 | current_event.u.CreateThread.hThread, | |
1357 | current_event.u.CreateThread.lpThreadLocalBase); | |
3ade5333 CF |
1358 | return main_thread_id; |
1359 | } | |
1360 | ||
f6ac5f3d PA |
1361 | void |
1362 | windows_nat_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
a244bdca | 1363 | { |
876d1cd7 | 1364 | windows_thread_info *th; |
a244bdca CF |
1365 | DWORD continue_status = DBG_CONTINUE; |
1366 | ||
2dc38344 PA |
1367 | /* A specific PTID means `step only this thread id'. */ |
1368 | int resume_all = ptid_equal (ptid, minus_one_ptid); | |
1369 | ||
1370 | /* If we're continuing all threads, it's the current inferior that | |
1371 | should be handled specially. */ | |
1372 | if (resume_all) | |
1373 | ptid = inferior_ptid; | |
a244bdca | 1374 | |
a493e3e2 | 1375 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1376 | { |
1377 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1378 | { | |
1379 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1380 | } | |
1381 | else if (sig == last_sig) | |
1382 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1383 | else | |
1384 | #if 0 | |
1385 | /* This code does not seem to work, because | |
1386 | the kernel does probably not consider changes in the ExceptionRecord | |
1387 | structure when passing the exception to the inferior. | |
1388 | Note that this seems possible in the exception handler itself. */ | |
1389 | { | |
1390 | int i; | |
1391 | for (i = 0; xlate[i].them != -1; i++) | |
1392 | if (xlate[i].us == sig) | |
1393 | { | |
581e13c1 MS |
1394 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
1395 | = xlate[i].them; | |
a244bdca CF |
1396 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1397 | break; | |
1398 | } | |
1399 | if (continue_status == DBG_CONTINUE) | |
1400 | { | |
1401 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1402 | } | |
1403 | } | |
1404 | #endif | |
23942819 | 1405 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1406 | last_sig)); |
1407 | } | |
1408 | ||
a493e3e2 | 1409 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1410 | |
dc05df57 | 1411 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n", |
2dc38344 | 1412 | ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig)); |
a244bdca | 1413 | |
581e13c1 | 1414 | /* Get context for currently selected thread. */ |
2dc38344 | 1415 | th = thread_rec (ptid_get_tid (inferior_ptid), FALSE); |
a244bdca CF |
1416 | if (th) |
1417 | { | |
1418 | if (step) | |
1419 | { | |
581e13c1 | 1420 | /* Single step by setting t bit. */ |
a97b0ac8 | 1421 | struct regcache *regcache = get_current_regcache (); |
ac7936df | 1422 | struct gdbarch *gdbarch = regcache->arch (); |
f6ac5f3d | 1423 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); |
a244bdca CF |
1424 | th->context.EFlags |= FLAG_TRACE_BIT; |
1425 | } | |
1426 | ||
1427 | if (th->context.ContextFlags) | |
1428 | { | |
1429 | if (debug_registers_changed) | |
1430 | { | |
1431 | th->context.Dr0 = dr[0]; | |
1432 | th->context.Dr1 = dr[1]; | |
1433 | th->context.Dr2 = dr[2]; | |
1434 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1435 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1436 | th->context.Dr7 = dr[7]; |
1437 | } | |
1438 | CHECK (SetThreadContext (th->h, &th->context)); | |
1439 | th->context.ContextFlags = 0; | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1444 | Otherwise complain. */ |
a244bdca | 1445 | |
2dc38344 | 1446 | if (resume_all) |
17617f2d | 1447 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1448 | else |
17617f2d | 1449 | windows_continue (continue_status, ptid_get_tid (ptid), 0); |
a244bdca CF |
1450 | } |
1451 | ||
695de547 CF |
1452 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1453 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1454 | Note that this function is not available prior to Windows XP. In this case | |
1455 | we emit a warning. */ | |
d603d4b3 | 1456 | static BOOL WINAPI |
695de547 CF |
1457 | ctrl_c_handler (DWORD event_type) |
1458 | { | |
1459 | const int attach_flag = current_inferior ()->attach_flag; | |
1460 | ||
bb0613a5 PM |
1461 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1462 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1463 | return FALSE; |
1464 | ||
1465 | /* If the inferior and the debugger share the same console, do nothing as | |
1466 | the inferior has also received the Ctrl-C event. */ | |
1467 | if (!new_console && !attach_flag) | |
1468 | return TRUE; | |
1469 | ||
1470 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1471 | warning (_("Could not interrupt program. " |
1472 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1473 | |
1474 | /* Return true to tell that Ctrl-C has been handled. */ | |
1475 | return TRUE; | |
1476 | } | |
1477 | ||
e6ad66bd JT |
1478 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1479 | requires handling by WFI (or whatever). */ | |
1e37c281 | 1480 | static int |
28439f5e PA |
1481 | get_windows_debug_event (struct target_ops *ops, |
1482 | int pid, struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1483 | { |
1484 | BOOL debug_event; | |
8a892701 | 1485 | DWORD continue_status, event_code; |
876d1cd7 YZ |
1486 | windows_thread_info *th; |
1487 | static windows_thread_info dummy_thread_info; | |
e6ad66bd | 1488 | DWORD thread_id = 0; |
1e37c281 | 1489 | |
a493e3e2 | 1490 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1491 | |
8a892701 | 1492 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1493 | goto out; |
1e37c281 JM |
1494 | |
1495 | event_count++; | |
1496 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1497 | |
8a892701 | 1498 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1499 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1500 | th = NULL; |
a244bdca | 1501 | have_saved_context = 0; |
8a892701 CF |
1502 | |
1503 | switch (event_code) | |
1e37c281 JM |
1504 | { |
1505 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1506 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1507 | (unsigned) current_event.dwProcessId, |
1508 | (unsigned) current_event.dwThreadId, | |
1509 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1510 | if (saw_create != 1) |
3ade5333 | 1511 | { |
181e7f93 PA |
1512 | struct inferior *inf; |
1513 | inf = find_inferior_pid (current_event.dwProcessId); | |
1514 | if (!saw_create && inf->attach_flag) | |
3ade5333 | 1515 | { |
d6dc8049 CF |
1516 | /* Kludge around a Windows bug where first event is a create |
1517 | thread event. Caused when attached process does not have | |
581e13c1 | 1518 | a main thread. */ |
e6ad66bd JT |
1519 | thread_id = fake_create_process (); |
1520 | if (thread_id) | |
181e7f93 | 1521 | saw_create++; |
3ade5333 CF |
1522 | } |
1523 | break; | |
1524 | } | |
581e13c1 | 1525 | /* Record the existence of this thread. */ |
e6ad66bd | 1526 | thread_id = current_event.dwThreadId; |
dc05df57 | 1527 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
2dc38344 | 1528 | current_event.dwThreadId), |
711e434b PM |
1529 | current_event.u.CreateThread.hThread, |
1530 | current_event.u.CreateThread.lpThreadLocalBase); | |
1531 | ||
1e37c281 JM |
1532 | break; |
1533 | ||
1534 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1535 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1536 | (unsigned) current_event.dwProcessId, |
1537 | (unsigned) current_event.dwThreadId, | |
1538 | "EXIT_THREAD_DEBUG_EVENT")); | |
b3c613f2 | 1539 | |
87a45c96 CF |
1540 | if (current_event.dwThreadId != main_thread_id) |
1541 | { | |
dc05df57 | 1542 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1543 | current_event.dwThreadId), |
1544 | current_event.u.ExitThread.dwExitCode); | |
87a45c96 CF |
1545 | th = &dummy_thread_info; |
1546 | } | |
1e37c281 JM |
1547 | break; |
1548 | ||
1549 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1550 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1551 | (unsigned) current_event.dwProcessId, |
1552 | (unsigned) current_event.dwThreadId, | |
1553 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1554 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1555 | if (++saw_create != 1) |
bf25528d | 1556 | break; |
1e37c281 | 1557 | |
dfe7f3ac | 1558 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
87a45c96 | 1559 | if (main_thread_id) |
695de547 | 1560 | windows_delete_thread (ptid_build (current_event.dwProcessId, 0, |
e0ea48a0 EZ |
1561 | main_thread_id), |
1562 | 0); | |
9d3789f7 | 1563 | main_thread_id = current_event.dwThreadId; |
581e13c1 | 1564 | /* Add the main thread. */ |
dc05df57 | 1565 | th = windows_add_thread (ptid_build (current_event.dwProcessId, 0, |
695de547 | 1566 | current_event.dwThreadId), |
711e434b PM |
1567 | current_event.u.CreateProcessInfo.hThread, |
1568 | current_event.u.CreateProcessInfo.lpThreadLocalBase); | |
e6ad66bd | 1569 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1570 | break; |
1571 | ||
1572 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1573 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1574 | (unsigned) current_event.dwProcessId, |
1575 | (unsigned) current_event.dwThreadId, | |
1576 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1577 | if (!windows_initialization_done) |
1578 | { | |
223ffa71 | 1579 | target_terminal::ours (); |
bc1e6c81 | 1580 | target_mourn_inferior (inferior_ptid); |
16d905e2 CF |
1581 | error (_("During startup program exited with code 0x%x."), |
1582 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1583 | } | |
1584 | else if (saw_create == 1) | |
1585 | { | |
1586 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1587 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
e6ad66bd | 1588 | thread_id = main_thread_id; |
16d905e2 | 1589 | } |
8a892701 | 1590 | break; |
1e37c281 JM |
1591 | |
1592 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1593 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1594 | (unsigned) current_event.dwProcessId, |
1595 | (unsigned) current_event.dwThreadId, | |
1596 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1597 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1598 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1599 | break; |
bf469271 | 1600 | catch_errors (handle_load_dll); |
450005e7 CF |
1601 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1602 | ourstatus->value.integer = 0; | |
e6ad66bd | 1603 | thread_id = main_thread_id; |
1e37c281 JM |
1604 | break; |
1605 | ||
1606 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1607 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1608 | (unsigned) current_event.dwProcessId, |
1609 | (unsigned) current_event.dwThreadId, | |
1610 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1611 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1612 | break; |
bf469271 | 1613 | catch_errors (handle_unload_dll); |
de1b3c3d PA |
1614 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1615 | ourstatus->value.integer = 0; | |
e6ad66bd | 1616 | thread_id = main_thread_id; |
d3ff4a77 | 1617 | break; |
1e37c281 JM |
1618 | |
1619 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1620 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1621 | (unsigned) current_event.dwProcessId, |
1622 | (unsigned) current_event.dwThreadId, | |
1623 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1624 | if (saw_create != 1) |
1625 | break; | |
24cdb46e РИ |
1626 | switch (handle_exception (ourstatus)) |
1627 | { | |
1628 | case HANDLE_EXCEPTION_UNHANDLED: | |
1629 | default: | |
1630 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1631 | break; | |
1632 | case HANDLE_EXCEPTION_HANDLED: | |
1633 | thread_id = current_event.dwThreadId; | |
1634 | break; | |
1635 | case HANDLE_EXCEPTION_IGNORED: | |
1636 | continue_status = DBG_CONTINUE; | |
1637 | break; | |
1638 | } | |
1e37c281 JM |
1639 | break; |
1640 | ||
581e13c1 | 1641 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1642 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1643 | (unsigned) current_event.dwProcessId, |
1644 | (unsigned) current_event.dwThreadId, | |
1645 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1646 | if (saw_create != 1) |
1647 | break; | |
e6ad66bd | 1648 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1649 | break; |
9d3789f7 | 1650 | |
1e37c281 | 1651 | default: |
dfe7f3ac CF |
1652 | if (saw_create != 1) |
1653 | break; | |
0c3d84be | 1654 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1655 | (unsigned) current_event.dwProcessId, |
1656 | (unsigned) current_event.dwThreadId); | |
1657 | printf_unfiltered (" unknown event code %u\n", | |
1658 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1659 | break; |
1660 | } | |
1661 | ||
e6ad66bd | 1662 | if (!thread_id || saw_create != 1) |
a244bdca | 1663 | { |
95824559 | 1664 | CHECK (windows_continue (continue_status, -1, 0)); |
a244bdca | 1665 | } |
450005e7 | 1666 | else |
9d3789f7 | 1667 | { |
2dc38344 | 1668 | inferior_ptid = ptid_build (current_event.dwProcessId, 0, |
e6ad66bd | 1669 | thread_id); |
776704b9 JT |
1670 | current_thread = th; |
1671 | if (!current_thread) | |
f16eab5f | 1672 | current_thread = thread_rec (thread_id, TRUE); |
9d3789f7 | 1673 | } |
1e37c281 JM |
1674 | |
1675 | out: | |
e6ad66bd | 1676 | return thread_id; |
1e37c281 JM |
1677 | } |
1678 | ||
2dc38344 | 1679 | /* Wait for interesting events to occur in the target process. */ |
f6ac5f3d PA |
1680 | ptid_t |
1681 | windows_nat_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus, | |
1682 | int options) | |
24e60978 | 1683 | { |
2dc38344 | 1684 | int pid = -1; |
39f77062 | 1685 | |
223ffa71 | 1686 | target_terminal::ours (); |
c44537cf | 1687 | |
24e60978 SC |
1688 | /* We loop when we get a non-standard exception rather than return |
1689 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1690 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1691 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1692 | isn't necessarily what you think it is. */ |
24e60978 SC |
1693 | |
1694 | while (1) | |
450005e7 | 1695 | { |
c57918b2 | 1696 | int retval; |
2b008701 | 1697 | |
695de547 CF |
1698 | /* If the user presses Ctrl-c while the debugger is waiting |
1699 | for an event, he expects the debugger to interrupt his program | |
1700 | and to get the prompt back. There are two possible situations: | |
1701 | ||
1702 | - The debugger and the program do not share the console, in | |
1703 | which case the Ctrl-c event only reached the debugger. | |
1704 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1705 | the inferior. Note that this case is working starting with |
1706 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1707 | inferior console. |
1708 | ||
1709 | - The debugger and the program share the same console, in which | |
1710 | case both debugger and inferior will receive the Ctrl-c event. | |
1711 | In that case the ctrl_c handler will ignore the event, as the | |
1712 | Ctrl-c event generated inside the inferior will trigger the | |
1713 | expected debug event. | |
1714 | ||
1715 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1716 | signal first and the delay until GDB receives that signal | |
1717 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1718 | after we have unblocked the CTRL+C handler. This would | |
1719 | lead to the debugger stopping prematurely while handling | |
1720 | the new-thread event that comes with the handling of the SIGINT | |
1721 | inside the inferior, and then stop again immediately when | |
1722 | the user tries to resume the execution in the inferior. | |
1723 | This is a classic race that we should try to fix one day. */ | |
1724 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
f6ac5f3d | 1725 | retval = get_windows_debug_event (this, pid, ourstatus); |
695de547 | 1726 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1727 | |
450005e7 | 1728 | if (retval) |
2dc38344 | 1729 | return ptid_build (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1730 | else |
1731 | { | |
1732 | int detach = 0; | |
3cee93ac | 1733 | |
98bbd631 AC |
1734 | if (deprecated_ui_loop_hook != NULL) |
1735 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1736 | |
450005e7 | 1737 | if (detach) |
f6ac5f3d | 1738 | kill (); |
450005e7 CF |
1739 | } |
1740 | } | |
24e60978 SC |
1741 | } |
1742 | ||
ea39ad35 JB |
1743 | /* Iterate over all DLLs currently mapped by our inferior, and |
1744 | add them to our list of solibs. */ | |
94481b8c JB |
1745 | |
1746 | static void | |
ea39ad35 | 1747 | windows_add_all_dlls (void) |
94481b8c JB |
1748 | { |
1749 | struct so_list *so; | |
1750 | HMODULE dummy_hmodule; | |
1751 | DWORD cb_needed; | |
1752 | HMODULE *hmodules; | |
1753 | int i; | |
1754 | ||
94481b8c JB |
1755 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, |
1756 | sizeof (HMODULE), &cb_needed) == 0) | |
1757 | return; | |
1758 | ||
1759 | if (cb_needed < 1) | |
1760 | return; | |
1761 | ||
1762 | hmodules = (HMODULE *) alloca (cb_needed); | |
1763 | if (EnumProcessModules (current_process_handle, hmodules, | |
1764 | cb_needed, &cb_needed) == 0) | |
1765 | return; | |
1766 | ||
ea39ad35 | 1767 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
1768 | { |
1769 | MODULEINFO mi; | |
774f74c2 PM |
1770 | #ifdef __USEWIDE |
1771 | wchar_t dll_name[__PMAX]; | |
1772 | char name[__PMAX]; | |
1773 | #else | |
94481b8c | 1774 | char dll_name[__PMAX]; |
774f74c2 PM |
1775 | char *name; |
1776 | #endif | |
94481b8c JB |
1777 | if (GetModuleInformation (current_process_handle, hmodules[i], |
1778 | &mi, sizeof (mi)) == 0) | |
1779 | continue; | |
1780 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
1781 | dll_name, sizeof (dll_name)) == 0) | |
1782 | continue; | |
774f74c2 PM |
1783 | #ifdef __USEWIDE |
1784 | wcstombs (name, dll_name, __PMAX); | |
1785 | #else | |
1786 | name = dll_name; | |
1787 | #endif | |
ea39ad35 JB |
1788 | |
1789 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
1790 | solib_end = solib_end->next; | |
94481b8c JB |
1791 | } |
1792 | } | |
1793 | ||
9d3789f7 | 1794 | static void |
dc05df57 | 1795 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 | 1796 | { |
fa4ba8da | 1797 | int i; |
d6b48e9c | 1798 | struct inferior *inf; |
2020b7ab | 1799 | struct thread_info *tp; |
9d3789f7 | 1800 | |
a493e3e2 | 1801 | last_sig = GDB_SIGNAL_0; |
9d3789f7 CF |
1802 | event_count = 0; |
1803 | exception_count = 0; | |
bf25528d | 1804 | open_process_used = 0; |
fa4ba8da | 1805 | debug_registers_changed = 0; |
dfe7f3ac | 1806 | debug_registers_used = 0; |
fa4ba8da PM |
1807 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1808 | dr[i] = 0; | |
10325bc5 | 1809 | #ifdef __CYGWIN__ |
de1b3c3d | 1810 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1811 | #endif |
9d3789f7 CF |
1812 | current_event.dwProcessId = pid; |
1813 | memset (¤t_event, 0, sizeof (current_event)); | |
6a3cb8e8 PA |
1814 | if (!target_is_pushed (ops)) |
1815 | push_target (ops); | |
cb851954 | 1816 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1817 | windows_clear_solib (); |
88056fbb | 1818 | clear_proceed_status (0); |
9d3789f7 CF |
1819 | init_wait_for_inferior (); |
1820 | ||
6c95b8df PA |
1821 | inf = current_inferior (); |
1822 | inferior_appeared (inf, pid); | |
181e7f93 | 1823 | inf->attach_flag = attaching; |
7f9f62ba | 1824 | |
9f9d052e PM |
1825 | /* Make the new process the current inferior, so terminal handling |
1826 | can rely on it. When attaching, we don't know about any thread | |
1827 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1828 | current thread until we report an event out of windows_wait. */ |
9f9d052e PM |
1829 | inferior_ptid = pid_to_ptid (pid); |
1830 | ||
223ffa71 TT |
1831 | target_terminal::init (); |
1832 | target_terminal::inferior (); | |
9d3789f7 | 1833 | |
16d905e2 | 1834 | windows_initialization_done = 0; |
c72f45d1 | 1835 | |
9d3789f7 CF |
1836 | while (1) |
1837 | { | |
c72f45d1 PA |
1838 | struct target_waitstatus status; |
1839 | ||
f6ac5f3d | 1840 | ops->wait (minus_one_ptid, &status, 0); |
c72f45d1 PA |
1841 | |
1842 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
1843 | events. */ | |
1844 | if (status.kind != TARGET_WAITKIND_LOADED | |
1845 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 1846 | break; |
c72f45d1 | 1847 | |
f6ac5f3d | 1848 | ops->resume (minus_one_ptid, 0, GDB_SIGNAL_0); |
9d3789f7 | 1849 | } |
eff8332b | 1850 | |
ea39ad35 | 1851 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
1852 | we can iterate over all DLLs and load them in. |
1853 | ||
1854 | We avoid doing it any earlier because, on certain versions of Windows, | |
1855 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
1856 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
1857 | include the DLL name, preventing us from creating an associated SO. | |
1858 | A possible explanation is that ntdll.dll might be mapped before | |
1859 | the SO info gets created by the Windows system -- ntdll.dll is | |
1860 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
1861 | do not seem to suffer from that problem. | |
1862 | ||
1863 | Rather than try to work around this sort of issue, it is much | |
1864 | simpler to just ignore DLL load/unload events during the startup | |
1865 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 1866 | windows_add_all_dlls (); |
94481b8c | 1867 | |
16d905e2 | 1868 | windows_initialization_done = 1; |
9d3789f7 CF |
1869 | return; |
1870 | } | |
1871 | ||
616a9dc4 CV |
1872 | /* Try to set or remove a user privilege to the current process. Return -1 |
1873 | if that fails, the previous setting of that privilege otherwise. | |
1874 | ||
1875 | This code is copied from the Cygwin source code and rearranged to allow | |
1876 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 1877 | available on NT/2K/XP. */ |
616a9dc4 CV |
1878 | static int |
1879 | set_process_privilege (const char *privilege, BOOL enable) | |
1880 | { | |
616a9dc4 CV |
1881 | HANDLE token_hdl = NULL; |
1882 | LUID restore_priv; | |
1883 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1884 | int ret = -1; | |
1885 | DWORD size; | |
1886 | ||
616a9dc4 CV |
1887 | if (!OpenProcessToken (GetCurrentProcess (), |
1888 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1889 | &token_hdl)) | |
1890 | goto out; | |
1891 | ||
418c6cb3 | 1892 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1893 | goto out; |
1894 | ||
1895 | new_priv.PrivilegeCount = 1; | |
1896 | new_priv.Privileges[0].Luid = restore_priv; | |
1897 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1898 | ||
1899 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1900 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1901 | goto out; |
1902 | #if 0 | |
1903 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1904 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 1905 | windows_attach(). */ |
616a9dc4 | 1906 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 1907 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
1908 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
1909 | goto out; | |
1910 | #endif | |
1911 | ||
1912 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1913 | ||
1914 | out: | |
1915 | if (token_hdl) | |
1916 | CloseHandle (token_hdl); | |
1917 | ||
1918 | return ret; | |
1919 | } | |
1920 | ||
02cc9f49 | 1921 | /* Attach to process PID, then initialize for debugging it. */ |
f6ac5f3d PA |
1922 | |
1923 | void | |
1924 | windows_nat_target::attach (const char *args, int from_tty) | |
24e60978 SC |
1925 | { |
1926 | BOOL ok; | |
559e75c0 | 1927 | DWORD pid; |
24e60978 | 1928 | |
74164c56 | 1929 | pid = parse_pid_to_attach (args); |
24e60978 | 1930 | |
616a9dc4 CV |
1931 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1932 | { | |
1933 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
1934 | printf_unfiltered ("This can cause attach to " |
1935 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
1936 | } |
1937 | ||
dc05df57 | 1938 | windows_init_thread_list (); |
9d3789f7 | 1939 | ok = DebugActiveProcess (pid); |
91a175b3 | 1940 | saw_create = 0; |
24e60978 | 1941 | |
10325bc5 | 1942 | #ifdef __CYGWIN__ |
24e60978 | 1943 | if (!ok) |
baa93fa6 | 1944 | { |
581e13c1 | 1945 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
1946 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
1947 | ||
1948 | if (pid > 0) | |
1949 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
1950 | } |
1951 | #endif | |
baa93fa6 | 1952 | |
10325bc5 PA |
1953 | if (!ok) |
1954 | error (_("Can't attach to process.")); | |
24e60978 | 1955 | |
2b008701 | 1956 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 1957 | |
24e60978 SC |
1958 | if (from_tty) |
1959 | { | |
1960 | char *exec_file = (char *) get_exec_file (0); | |
1961 | ||
1962 | if (exec_file) | |
1963 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
39f77062 | 1964 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1965 | else |
1966 | printf_unfiltered ("Attaching to %s\n", | |
39f77062 | 1967 | target_pid_to_str (pid_to_ptid (pid))); |
24e60978 SC |
1968 | |
1969 | gdb_flush (gdb_stdout); | |
1970 | } | |
1971 | ||
f6ac5f3d | 1972 | do_initial_windows_stuff (this, pid, 1); |
223ffa71 | 1973 | target_terminal::ours (); |
24e60978 SC |
1974 | } |
1975 | ||
f6ac5f3d PA |
1976 | void |
1977 | windows_nat_target::detach (inferior *inf, int from_tty) | |
24e60978 | 1978 | { |
02cc9f49 CV |
1979 | int detached = 1; |
1980 | ||
8473b447 | 1981 | ptid_t ptid = minus_one_ptid; |
f6ac5f3d | 1982 | resume (ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 1983 | |
2b008701 CF |
1984 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
1985 | { | |
d50a0ce2 CV |
1986 | error (_("Can't detach process %u (error %u)"), |
1987 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 1988 | detached = 0; |
02cc9f49 | 1989 | } |
2b008701 CF |
1990 | DebugSetProcessKillOnExit (FALSE); |
1991 | ||
02cc9f49 | 1992 | if (detached && from_tty) |
24e60978 | 1993 | { |
a121b7c1 | 1994 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
1995 | if (exec_file == 0) |
1996 | exec_file = ""; | |
d50a0ce2 CV |
1997 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
1998 | (unsigned) current_event.dwProcessId); | |
24e60978 SC |
1999 | gdb_flush (gdb_stdout); |
2000 | } | |
7f9f62ba | 2001 | |
df7e5265 | 2002 | x86_cleanup_dregs (); |
39f77062 | 2003 | inferior_ptid = null_ptid; |
7f9f62ba PA |
2004 | detach_inferior (current_event.dwProcessId); |
2005 | ||
f6ac5f3d | 2006 | maybe_unpush_target (); |
24e60978 SC |
2007 | } |
2008 | ||
47f7ffdb JB |
2009 | /* Try to determine the executable filename. |
2010 | ||
2011 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
2012 | ||
2013 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
2014 | this function returns nonzero. | |
2015 | ||
2016 | Otherwise, this function returns zero and the contents of | |
2017 | EXE_NAME_RET is undefined. */ | |
2018 | ||
2019 | static int | |
2020 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
2021 | { | |
2022 | DWORD len; | |
2023 | HMODULE dh_buf; | |
2024 | DWORD cbNeeded; | |
2025 | ||
2026 | cbNeeded = 0; | |
2027 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
2028 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
2029 | return 0; | |
2030 | ||
2031 | /* We know the executable is always first in the list of modules, | |
2032 | which we just fetched. So no need to fetch more. */ | |
2033 | ||
2034 | #ifdef __CYGWIN__ | |
2035 | { | |
2036 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
2037 | the filename into a temporary buffer first, and then convert it | |
2038 | to POSIX format into the destination buffer. */ | |
0ae534d2 | 2039 | cygwin_buf_t *pathbuf = (cygwin_buf_t *) alloca (exe_name_max_len * sizeof (cygwin_buf_t)); |
47f7ffdb JB |
2040 | |
2041 | len = GetModuleFileNameEx (current_process_handle, | |
2042 | dh_buf, pathbuf, exe_name_max_len); | |
2043 | if (len == 0) | |
2044 | error (_("Error getting executable filename: %u."), | |
2045 | (unsigned) GetLastError ()); | |
2046 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
2047 | exe_name_max_len) < 0) | |
2048 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
2049 | } | |
2050 | #else | |
2051 | len = GetModuleFileNameEx (current_process_handle, | |
2052 | dh_buf, exe_name_ret, exe_name_max_len); | |
2053 | if (len == 0) | |
2054 | error (_("Error getting executable filename: %u."), | |
2055 | (unsigned) GetLastError ()); | |
2056 | #endif | |
2057 | ||
2058 | return 1; /* success */ | |
2059 | } | |
2060 | ||
2061 | /* The pid_to_exec_file target_ops method for this platform. */ | |
2062 | ||
f6ac5f3d PA |
2063 | char * |
2064 | windows_nat_target::pid_to_exec_file (int pid) | |
47216e51 | 2065 | { |
b3c613f2 | 2066 | static char path[__PMAX]; |
10325bc5 | 2067 | #ifdef __CYGWIN__ |
581e13c1 | 2068 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
2069 | int nchars; |
2070 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
2071 | |
2072 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
2073 | nchars = readlink (procexe, path, sizeof(path)); |
2074 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 2075 | { |
33605d39 CF |
2076 | path[nchars] = '\0'; /* Got it */ |
2077 | return path; | |
47216e51 | 2078 | } |
10325bc5 PA |
2079 | #endif |
2080 | ||
33605d39 | 2081 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 2082 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 2083 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
2084 | path[0] = '\0'; |
2085 | ||
2086 | return path; | |
47216e51 CV |
2087 | } |
2088 | ||
24e60978 SC |
2089 | /* Print status information about what we're accessing. */ |
2090 | ||
f6ac5f3d PA |
2091 | void |
2092 | windows_nat_target::files_info () | |
24e60978 | 2093 | { |
181e7f93 PA |
2094 | struct inferior *inf = current_inferior (); |
2095 | ||
24e60978 | 2096 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 PA |
2097 | inf->attach_flag ? "attached" : "child", |
2098 | target_pid_to_str (inferior_ptid)); | |
24e60978 SC |
2099 | } |
2100 | ||
cd44747c PM |
2101 | /* Modify CreateProcess parameters for use of a new separate console. |
2102 | Parameters are: | |
2103 | *FLAGS: DWORD parameter for general process creation flags. | |
2104 | *SI: STARTUPINFO structure, for which the console window size and | |
2105 | console buffer size is filled in if GDB is running in a console. | |
2106 | to create the new console. | |
2107 | The size of the used font is not available on all versions of | |
2108 | Windows OS. Furthermore, the current font might not be the default | |
2109 | font, but this is still better than before. | |
2110 | If the windows and buffer sizes are computed, | |
2111 | SI->DWFLAGS is changed so that this information is used | |
2112 | by CreateProcess function. */ | |
2113 | ||
2114 | static void | |
2115 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
2116 | { | |
2117 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
2118 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
2119 | ||
2120 | if (hconsole != INVALID_HANDLE_VALUE) | |
2121 | { | |
2122 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2123 | COORD font_size; | |
2124 | CONSOLE_FONT_INFO cfi; | |
2125 | ||
2126 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2127 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2128 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2129 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2130 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2131 | if (font_size.X) | |
2132 | si->dwXSize *= font_size.X; | |
2133 | else | |
2134 | si->dwXSize *= 8; | |
2135 | if (font_size.Y) | |
2136 | si->dwYSize *= font_size.Y; | |
2137 | else | |
2138 | si->dwYSize *= 12; | |
2139 | si->dwXCountChars = sbinfo.dwSize.X; | |
2140 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2141 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2142 | } | |
2143 | *flags |= CREATE_NEW_CONSOLE; | |
2144 | } | |
2145 | ||
c93dbcba EZ |
2146 | #ifndef __CYGWIN__ |
2147 | /* Function called by qsort to sort environment strings. */ | |
2148 | ||
2149 | static int | |
2150 | envvar_cmp (const void *a, const void *b) | |
2151 | { | |
2152 | const char **p = (const char **) a; | |
2153 | const char **q = (const char **) b; | |
2154 | return strcasecmp (*p, *q); | |
2155 | } | |
2156 | #endif | |
2157 | ||
b7ff339d CV |
2158 | #ifdef __CYGWIN__ |
2159 | static void | |
2160 | clear_win32_environment (char **env) | |
2161 | { | |
2162 | int i; | |
2163 | size_t len; | |
2164 | wchar_t *copy = NULL, *equalpos; | |
2165 | ||
2166 | for (i = 0; env[i] && *env[i]; i++) | |
2167 | { | |
2168 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2169 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2170 | mbstowcs (copy, env[i], len); | |
2171 | equalpos = wcschr (copy, L'='); | |
2172 | if (equalpos) | |
2173 | *equalpos = L'\0'; | |
2174 | SetEnvironmentVariableW (copy, NULL); | |
2175 | } | |
2176 | xfree (copy); | |
2177 | } | |
2178 | #endif | |
2179 | ||
8ba42bc5 EZ |
2180 | #ifndef __CYGWIN__ |
2181 | ||
2182 | /* Redirection of inferior I/O streams for native MS-Windows programs. | |
2183 | Unlike on Unix, where this is handled by invoking the inferior via | |
2184 | the shell, on MS-Windows we need to emulate the cmd.exe shell. | |
2185 | ||
2186 | The official documentation of the cmd.exe redirection features is here: | |
2187 | ||
2188 | http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/redirection.mspx | |
2189 | ||
2190 | (That page talks about Windows XP, but there's no newer | |
2191 | documentation, so we assume later versions of cmd.exe didn't change | |
2192 | anything.) | |
2193 | ||
2194 | Caveat: the documentation on that page seems to include a few lies. | |
2195 | For example, it describes strange constructs 1<&2 and 2<&1, which | |
2196 | seem to work only when 1>&2 resp. 2>&1 would make sense, and so I | |
2197 | think the cmd.exe parser of the redirection symbols simply doesn't | |
2198 | care about the < vs > distinction in these cases. Therefore, the | |
2199 | supported features are explicitly documented below. | |
2200 | ||
2201 | The emulation below aims at supporting all the valid use cases | |
2202 | supported by cmd.exe, which include: | |
2203 | ||
2204 | < FILE redirect standard input from FILE | |
2205 | 0< FILE redirect standard input from FILE | |
2206 | <&N redirect standard input from file descriptor N | |
2207 | 0<&N redirect standard input from file descriptor N | |
2208 | > FILE redirect standard output to FILE | |
2209 | >> FILE append standard output to FILE | |
2210 | 1>> FILE append standard output to FILE | |
2211 | >&N redirect standard output to file descriptor N | |
2212 | 1>&N redirect standard output to file descriptor N | |
2213 | >>&N append standard output to file descriptor N | |
2214 | 1>>&N append standard output to file descriptor N | |
2215 | 2> FILE redirect standard error to FILE | |
2216 | 2>> FILE append standard error to FILE | |
2217 | 2>&N redirect standard error to file descriptor N | |
2218 | 2>>&N append standard error to file descriptor N | |
2219 | ||
2220 | Note that using N > 2 in the above construct is supported, but | |
2221 | requires that the corresponding file descriptor be open by some | |
2222 | means elsewhere or outside GDB. Also note that using ">&0" or | |
2223 | "<&2" will generally fail, because the file descriptor redirected | |
2224 | from is normally open in an incompatible mode (e.g., FD 0 is open | |
2225 | for reading only). IOW, use of such tricks is not recommended; | |
2226 | you are on your own. | |
2227 | ||
2228 | We do NOT support redirection of file descriptors above 2, as in | |
2229 | "3>SOME-FILE", because MinGW compiled programs don't (supporting | |
2230 | that needs special handling in the startup code that MinGW | |
2231 | doesn't have). Pipes are also not supported. | |
2232 | ||
2233 | As for invalid use cases, where the redirection contains some | |
2234 | error, the emulation below will detect that and produce some | |
2235 | error and/or failure. But the behavior in those cases is not | |
2236 | bug-for-bug compatible with what cmd.exe does in those cases. | |
2237 | That's because what cmd.exe does then is not well defined, and | |
2238 | seems to be a side effect of the cmd.exe parsing of the command | |
2239 | line more than anything else. For example, try redirecting to an | |
2240 | invalid file name, as in "> foo:bar". | |
2241 | ||
2242 | There are also minor syntactic deviations from what cmd.exe does | |
2243 | in some corner cases. For example, it doesn't support the likes | |
2244 | of "> &foo" to mean redirect to file named literally "&foo"; we | |
2245 | do support that here, because that, too, sounds like some issue | |
2246 | with the cmd.exe parser. Another nicety is that we support | |
2247 | redirection targets that use file names with forward slashes, | |
2248 | something cmd.exe doesn't -- this comes in handy since GDB | |
2249 | file-name completion can be used when typing the command line for | |
2250 | the inferior. */ | |
2251 | ||
2252 | /* Support routines for redirecting standard handles of the inferior. */ | |
2253 | ||
2254 | /* Parse a single redirection spec, open/duplicate the specified | |
2255 | file/fd, and assign the appropriate value to one of the 3 standard | |
2256 | file descriptors. */ | |
2257 | static int | |
2258 | redir_open (const char *redir_string, int *inp, int *out, int *err) | |
2259 | { | |
2260 | int *fd, ref_fd = -2; | |
2261 | int mode; | |
2262 | const char *fname = redir_string + 1; | |
2263 | int rc = *redir_string; | |
2264 | ||
2265 | switch (rc) | |
2266 | { | |
2267 | case '0': | |
2268 | fname++; | |
2269 | /* FALLTHROUGH */ | |
2270 | case '<': | |
2271 | fd = inp; | |
2272 | mode = O_RDONLY; | |
2273 | break; | |
2274 | case '1': case '2': | |
2275 | fname++; | |
2276 | /* FALLTHROUGH */ | |
2277 | case '>': | |
2278 | fd = (rc == '2') ? err : out; | |
2279 | mode = O_WRONLY | O_CREAT; | |
2280 | if (*fname == '>') | |
2281 | { | |
2282 | fname++; | |
2283 | mode |= O_APPEND; | |
2284 | } | |
2285 | else | |
2286 | mode |= O_TRUNC; | |
2287 | break; | |
2288 | default: | |
2289 | return -1; | |
2290 | } | |
2291 | ||
2292 | if (*fname == '&' && '0' <= fname[1] && fname[1] <= '9') | |
2293 | { | |
2294 | /* A reference to a file descriptor. */ | |
2295 | char *fdtail; | |
2296 | ref_fd = (int) strtol (fname + 1, &fdtail, 10); | |
2297 | if (fdtail > fname + 1 && *fdtail == '\0') | |
2298 | { | |
2299 | /* Don't allow redirection when open modes are incompatible. */ | |
2300 | if ((ref_fd == 0 && (fd == out || fd == err)) | |
2301 | || ((ref_fd == 1 || ref_fd == 2) && fd == inp)) | |
2302 | { | |
2303 | errno = EPERM; | |
2304 | return -1; | |
2305 | } | |
2306 | if (ref_fd == 0) | |
2307 | ref_fd = *inp; | |
2308 | else if (ref_fd == 1) | |
2309 | ref_fd = *out; | |
2310 | else if (ref_fd == 2) | |
2311 | ref_fd = *err; | |
2312 | } | |
2313 | else | |
2314 | { | |
2315 | errno = EBADF; | |
2316 | return -1; | |
2317 | } | |
2318 | } | |
2319 | else | |
2320 | fname++; /* skip the separator space */ | |
2321 | /* If the descriptor is already open, close it. This allows | |
2322 | multiple specs of redirections for the same stream, which is | |
2323 | somewhat nonsensical, but still valid and supported by cmd.exe. | |
2324 | (But cmd.exe only opens a single file in this case, the one | |
2325 | specified by the last redirection spec on the command line.) */ | |
2326 | if (*fd >= 0) | |
2327 | _close (*fd); | |
2328 | if (ref_fd == -2) | |
2329 | { | |
2330 | *fd = _open (fname, mode, _S_IREAD | _S_IWRITE); | |
2331 | if (*fd < 0) | |
2332 | return -1; | |
2333 | } | |
2334 | else if (ref_fd == -1) | |
2335 | *fd = -1; /* reset to default destination */ | |
2336 | else | |
2337 | { | |
2338 | *fd = _dup (ref_fd); | |
2339 | if (*fd < 0) | |
2340 | return -1; | |
2341 | } | |
2342 | /* _open just sets a flag for O_APPEND, which won't be passed to the | |
2343 | inferior, so we need to actually move the file pointer. */ | |
2344 | if ((mode & O_APPEND) != 0) | |
2345 | _lseek (*fd, 0L, SEEK_END); | |
2346 | return 0; | |
2347 | } | |
2348 | ||
2349 | /* Canonicalize a single redirection spec and set up the corresponding | |
2350 | file descriptor as specified. */ | |
2351 | static int | |
2352 | redir_set_redirection (const char *s, int *inp, int *out, int *err) | |
2353 | { | |
2354 | char buf[__PMAX + 2 + 5]; /* extra space for quotes & redirection string */ | |
2355 | char *d = buf; | |
2356 | const char *start = s; | |
2357 | int quote = 0; | |
2358 | ||
2359 | *d++ = *s++; /* copy the 1st character, < or > or a digit */ | |
2360 | if ((*start == '>' || *start == '1' || *start == '2') | |
2361 | && *s == '>') | |
2362 | { | |
2363 | *d++ = *s++; | |
2364 | if (*s == '>' && *start != '>') | |
2365 | *d++ = *s++; | |
2366 | } | |
2367 | else if (*start == '0' && *s == '<') | |
2368 | *d++ = *s++; | |
2369 | /* cmd.exe recognizes "&N" only immediately after the redirection symbol. */ | |
2370 | if (*s != '&') | |
2371 | { | |
2372 | while (isspace (*s)) /* skip whitespace before file name */ | |
2373 | s++; | |
2374 | *d++ = ' '; /* separate file name with a single space */ | |
2375 | } | |
2376 | ||
2377 | /* Copy the file name. */ | |
2378 | while (*s) | |
2379 | { | |
2380 | /* Remove quoting characters from the file name in buf[]. */ | |
2381 | if (*s == '"') /* could support '..' quoting here */ | |
2382 | { | |
2383 | if (!quote) | |
2384 | quote = *s++; | |
2385 | else if (*s == quote) | |
2386 | { | |
2387 | quote = 0; | |
2388 | s++; | |
2389 | } | |
2390 | else | |
2391 | *d++ = *s++; | |
2392 | } | |
2393 | else if (*s == '\\') | |
2394 | { | |
2395 | if (s[1] == '"') /* could support '..' here */ | |
2396 | s++; | |
2397 | *d++ = *s++; | |
2398 | } | |
2399 | else if (isspace (*s) && !quote) | |
2400 | break; | |
2401 | else | |
2402 | *d++ = *s++; | |
2403 | if (d - buf >= sizeof (buf) - 1) | |
2404 | { | |
2405 | errno = ENAMETOOLONG; | |
2406 | return 0; | |
2407 | } | |
2408 | } | |
2409 | *d = '\0'; | |
2410 | ||
2411 | /* Windows doesn't allow redirection characters in file names, so we | |
2412 | can bail out early if they use them, or if there's no target file | |
2413 | name after the redirection symbol. */ | |
2414 | if (d[-1] == '>' || d[-1] == '<') | |
2415 | { | |
2416 | errno = ENOENT; | |
2417 | return 0; | |
2418 | } | |
2419 | if (redir_open (buf, inp, out, err) == 0) | |
2420 | return s - start; | |
2421 | return 0; | |
2422 | } | |
2423 | ||
2424 | /* Parse the command line for redirection specs and prepare the file | |
2425 | descriptors for the 3 standard streams accordingly. */ | |
2426 | static bool | |
2427 | redirect_inferior_handles (const char *cmd_orig, char *cmd, | |
2428 | int *inp, int *out, int *err) | |
2429 | { | |
2430 | const char *s = cmd_orig; | |
2431 | char *d = cmd; | |
2432 | int quote = 0; | |
2433 | bool retval = false; | |
2434 | ||
2435 | while (isspace (*s)) | |
2436 | *d++ = *s++; | |
2437 | ||
2438 | while (*s) | |
2439 | { | |
2440 | if (*s == '"') /* could also support '..' quoting here */ | |
2441 | { | |
2442 | if (!quote) | |
2443 | quote = *s; | |
2444 | else if (*s == quote) | |
2445 | quote = 0; | |
2446 | } | |
2447 | else if (*s == '\\') | |
2448 | { | |
2449 | if (s[1] == '"') /* escaped quote char */ | |
2450 | s++; | |
2451 | } | |
2452 | else if (!quote) | |
2453 | { | |
2454 | /* Process a single redirection candidate. */ | |
2455 | if (*s == '<' || *s == '>' | |
2456 | || ((*s == '1' || *s == '2') && s[1] == '>') | |
2457 | || (*s == '0' && s[1] == '<')) | |
2458 | { | |
2459 | int skip = redir_set_redirection (s, inp, out, err); | |
2460 | ||
2461 | if (skip <= 0) | |
2462 | return false; | |
2463 | retval = true; | |
2464 | s += skip; | |
2465 | } | |
2466 | } | |
2467 | if (*s) | |
2468 | *d++ = *s++; | |
2469 | } | |
2470 | *d = '\0'; | |
2471 | return retval; | |
2472 | } | |
2473 | #endif /* !__CYGWIN__ */ | |
2474 | ||
dc05df57 | 2475 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2476 | EXEC_FILE is the file to run. |
2477 | ALLARGS is a string containing the arguments to the program. | |
2478 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2479 | ||
f6ac5f3d PA |
2480 | void |
2481 | windows_nat_target::create_inferior (const char *exec_file, | |
2482 | const std::string &origallargs, | |
2483 | char **in_env, int from_tty) | |
24e60978 | 2484 | { |
b3c613f2 | 2485 | STARTUPINFO si; |
41b4aadc | 2486 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2487 | cygwin_buf_t real_path[__PMAX]; |
2488 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d092c5a2 | 2489 | cygwin_buf_t infcwd[__PMAX]; |
d0d0ab16 | 2490 | const char *sh; |
b3c613f2 CF |
2491 | cygwin_buf_t *toexec; |
2492 | cygwin_buf_t *cygallargs; | |
2493 | cygwin_buf_t *args; | |
b7ff339d CV |
2494 | char **old_env = NULL; |
2495 | PWCHAR w32_env; | |
d0d0ab16 | 2496 | size_t len; |
2becadee CF |
2497 | int tty; |
2498 | int ostdin, ostdout, ostderr; | |
8ba42bc5 | 2499 | #else /* !__CYGWIN__ */ |
b3c613f2 CF |
2500 | char real_path[__PMAX]; |
2501 | char shell[__PMAX]; /* Path to shell */ | |
5430098f | 2502 | const char *toexec; |
8ba42bc5 EZ |
2503 | char *args, *allargs_copy; |
2504 | size_t args_len, allargs_len; | |
2505 | int fd_inp = -1, fd_out = -1, fd_err = -1; | |
2506 | HANDLE tty = INVALID_HANDLE_VALUE; | |
2507 | HANDLE inf_stdin = INVALID_HANDLE_VALUE; | |
2508 | HANDLE inf_stdout = INVALID_HANDLE_VALUE; | |
2509 | HANDLE inf_stderr = INVALID_HANDLE_VALUE; | |
2510 | bool redirected = false; | |
c93dbcba EZ |
2511 | char *w32env; |
2512 | char *temp; | |
2513 | size_t envlen; | |
2514 | int i; | |
2515 | size_t envsize; | |
2516 | char **env; | |
8ba42bc5 | 2517 | #endif /* !__CYGWIN__ */ |
096c92dd | 2518 | const char *allargs = origallargs.c_str (); |
d0d0ab16 CV |
2519 | PROCESS_INFORMATION pi; |
2520 | BOOL ret; | |
2521 | DWORD flags = 0; | |
3cb3b8df | 2522 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2523 | |
2524 | if (!exec_file) | |
8a3fe4f8 | 2525 | error (_("No executable specified, use `target exec'.")); |
24e60978 | 2526 | |
d092c5a2 SDJ |
2527 | const char *inferior_cwd = get_inferior_cwd (); |
2528 | std::string expanded_infcwd; | |
2529 | if (inferior_cwd != NULL) | |
2530 | { | |
2531 | expanded_infcwd = gdb_tilde_expand (inferior_cwd); | |
2532 | /* Mirror slashes on inferior's cwd. */ | |
2533 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), | |
2534 | '/', '\\'); | |
2535 | inferior_cwd = expanded_infcwd.c_str (); | |
2536 | } | |
2537 | ||
24e60978 SC |
2538 | memset (&si, 0, sizeof (si)); |
2539 | si.cb = sizeof (si); | |
2540 | ||
d0d0ab16 CV |
2541 | if (new_group) |
2542 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2543 | ||
2544 | if (new_console) | |
cd44747c | 2545 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2546 | |
10325bc5 | 2547 | #ifdef __CYGWIN__ |
349b409f | 2548 | if (!useshell) |
dfe7f3ac | 2549 | { |
d0d0ab16 CV |
2550 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2551 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2552 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2553 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2554 | toexec = real_path; |
b3c613f2 | 2555 | #ifdef __USEWIDE |
d0d0ab16 CV |
2556 | len = mbstowcs (NULL, allargs, 0) + 1; |
2557 | if (len == (size_t) -1) | |
2558 | error (_("Error starting executable: %d"), errno); | |
2559 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2560 | mbstowcs (cygallargs, allargs, len); | |
8ba42bc5 | 2561 | #else /* !__USEWIDE */ |
60c5c021 | 2562 | cygallargs = allargs; |
b3c613f2 | 2563 | #endif |
dfe7f3ac CF |
2564 | } |
2565 | else | |
2566 | { | |
349b409f CF |
2567 | sh = getenv ("SHELL"); |
2568 | if (!sh) | |
2569 | sh = "/bin/sh"; | |
b3c613f2 | 2570 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2571 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2572 | #ifdef __USEWIDE |
d0d0ab16 CV |
2573 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2574 | + mbstowcs (NULL, allargs, 0) + 2; | |
2575 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2576 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2577 | #else /* !__USEWIDE */ |
08850b56 PM |
2578 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2579 | + strlen (allargs) + 2); | |
2580 | cygallargs = (char *) alloca (len); | |
2581 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2582 | #endif /* __USEWIDE */ |
dfe7f3ac | 2583 | toexec = shell; |
d0d0ab16 | 2584 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2585 | } |
b3c613f2 | 2586 | |
d092c5a2 SDJ |
2587 | if (inferior_cwd != NULL |
2588 | && cygwin_conv_path (CCP_POSIX_TO_WIN_W, inferior_cwd, | |
2589 | infcwd, strlen (inferior_cwd)) < 0) | |
2590 | error (_("Error converting inferior cwd: %d"), errno); | |
2591 | ||
b3c613f2 CF |
2592 | #ifdef __USEWIDE |
2593 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2594 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2595 | wcscpy (args, toexec); |
2596 | wcscat (args, L" "); | |
2597 | wcscat (args, cygallargs); | |
8ba42bc5 | 2598 | #else /* !__USEWIDE */ |
b3c613f2 CF |
2599 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); |
2600 | strcpy (args, toexec); | |
2601 | strcat (args, " "); | |
2602 | strcat (args, cygallargs); | |
8ba42bc5 | 2603 | #endif /* !__USEWIDE */ |
b3c613f2 | 2604 | |
b7ff339d CV |
2605 | #ifdef CW_CVT_ENV_TO_WINENV |
2606 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2607 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2608 | if (w32_env != (PWCHAR) -1) | |
2609 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2610 | else | |
2611 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
8ba42bc5 | 2612 | #endif /* CW_CVT_ENV_TO_WINENV */ |
b7ff339d CV |
2613 | { |
2614 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2615 | clear_win32_environment (environ); | |
2616 | /* Prepare the environment vars for CreateProcess. */ | |
2617 | old_env = environ; | |
2618 | environ = in_env; | |
2619 | cygwin_internal (CW_SYNC_WINENV); | |
2620 | w32_env = NULL; | |
2621 | } | |
1750a5ef | 2622 | |
2becadee CF |
2623 | if (!inferior_io_terminal) |
2624 | tty = ostdin = ostdout = ostderr = -1; | |
2625 | else | |
2626 | { | |
2627 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2628 | if (tty < 0) | |
2629 | { | |
2630 | print_sys_errmsg (inferior_io_terminal, errno); | |
2631 | ostdin = ostdout = ostderr = -1; | |
2632 | } | |
2633 | else | |
2634 | { | |
2635 | ostdin = dup (0); | |
2636 | ostdout = dup (1); | |
2637 | ostderr = dup (2); | |
2638 | dup2 (tty, 0); | |
2639 | dup2 (tty, 1); | |
2640 | dup2 (tty, 2); | |
2641 | } | |
2642 | } | |
d0d0ab16 CV |
2643 | |
2644 | windows_init_thread_list (); | |
b3c613f2 CF |
2645 | ret = CreateProcess (0, |
2646 | args, /* command line */ | |
2647 | NULL, /* Security */ | |
2648 | NULL, /* thread */ | |
2649 | TRUE, /* inherit handles */ | |
2650 | flags, /* start flags */ | |
b7ff339d | 2651 | w32_env, /* environment */ |
d092c5a2 SDJ |
2652 | inferior_cwd != NULL ? infcwd : NULL, /* current |
2653 | directory */ | |
b3c613f2 CF |
2654 | &si, |
2655 | &pi); | |
b7ff339d CV |
2656 | if (w32_env) |
2657 | /* Just free the Win32 environment, if it could be created. */ | |
2658 | free (w32_env); | |
2659 | else | |
2660 | { | |
2661 | /* Reset all environment variables to avoid leftover on next run. */ | |
2662 | clear_win32_environment (in_env); | |
2663 | /* Restore normal GDB environment variables. */ | |
2664 | environ = old_env; | |
2665 | cygwin_internal (CW_SYNC_WINENV); | |
2666 | } | |
2667 | ||
d0d0ab16 CV |
2668 | if (tty >= 0) |
2669 | { | |
2670 | close (tty); | |
2671 | dup2 (ostdin, 0); | |
2672 | dup2 (ostdout, 1); | |
2673 | dup2 (ostderr, 2); | |
2674 | close (ostdin); | |
2675 | close (ostdout); | |
2676 | close (ostderr); | |
2677 | } | |
8ba42bc5 EZ |
2678 | #else /* !__CYGWIN__ */ |
2679 | allargs_len = strlen (allargs); | |
2680 | allargs_copy = strcpy ((char *) alloca (allargs_len + 1), allargs); | |
2681 | if (strpbrk (allargs_copy, "<>") != NULL) | |
2682 | { | |
2683 | int e = errno; | |
2684 | errno = 0; | |
2685 | redirected = | |
2686 | redirect_inferior_handles (allargs, allargs_copy, | |
2687 | &fd_inp, &fd_out, &fd_err); | |
2688 | if (errno) | |
2689 | warning (_("Error in redirection: %s."), strerror (errno)); | |
2690 | else | |
2691 | errno = e; | |
2692 | allargs_len = strlen (allargs_copy); | |
2693 | } | |
2694 | /* If not all the standard streams are redirected by the command | |
2695 | line, use inferior_io_terminal for those which aren't. */ | |
2696 | if (inferior_io_terminal | |
2697 | && !(fd_inp >= 0 && fd_out >= 0 && fd_err >= 0)) | |
41b4aadc CF |
2698 | { |
2699 | SECURITY_ATTRIBUTES sa; | |
2700 | sa.nLength = sizeof(sa); | |
2701 | sa.lpSecurityDescriptor = 0; | |
2702 | sa.bInheritHandle = TRUE; | |
2703 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2704 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2705 | if (tty == INVALID_HANDLE_VALUE) | |
2706 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2707 | inferior_io_terminal, (unsigned) GetLastError ()); | |
8ba42bc5 EZ |
2708 | } |
2709 | if (redirected || tty != INVALID_HANDLE_VALUE) | |
2710 | { | |
2711 | if (fd_inp >= 0) | |
2712 | si.hStdInput = (HANDLE) _get_osfhandle (fd_inp); | |
2713 | else if (tty != INVALID_HANDLE_VALUE) | |
2714 | si.hStdInput = tty; | |
41b4aadc | 2715 | else |
8ba42bc5 EZ |
2716 | si.hStdInput = GetStdHandle (STD_INPUT_HANDLE); |
2717 | if (fd_out >= 0) | |
2718 | si.hStdOutput = (HANDLE) _get_osfhandle (fd_out); | |
2719 | else if (tty != INVALID_HANDLE_VALUE) | |
2720 | si.hStdOutput = tty; | |
2721 | else | |
2722 | si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE); | |
2723 | if (fd_err >= 0) | |
2724 | si.hStdError = (HANDLE) _get_osfhandle (fd_err); | |
2725 | else if (tty != INVALID_HANDLE_VALUE) | |
2726 | si.hStdError = tty; | |
2727 | else | |
2728 | si.hStdError = GetStdHandle (STD_ERROR_HANDLE); | |
2729 | si.dwFlags |= STARTF_USESTDHANDLES; | |
41b4aadc | 2730 | } |
2becadee | 2731 | |
8ba42bc5 EZ |
2732 | toexec = exec_file; |
2733 | /* Build the command line, a space-separated list of tokens where | |
2734 | the first token is the name of the module to be executed. | |
2735 | To avoid ambiguities introduced by spaces in the module name, | |
2736 | we quote it. */ | |
2737 | args_len = strlen (toexec) + 2 /* quotes */ + allargs_len + 2; | |
2738 | args = (char *) alloca (args_len); | |
2739 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs_copy); | |
2740 | ||
2741 | flags |= DEBUG_ONLY_THIS_PROCESS; | |
2742 | ||
c93dbcba EZ |
2743 | /* CreateProcess takes the environment list as a null terminated set of |
2744 | strings (i.e. two nulls terminate the list). */ | |
2745 | ||
2746 | /* Get total size for env strings. */ | |
2747 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2748 | envlen += strlen (in_env[i]) + 1; | |
2749 | ||
2750 | envsize = sizeof (in_env[0]) * (i + 1); | |
2751 | env = (char **) alloca (envsize); | |
2752 | memcpy (env, in_env, envsize); | |
2753 | /* Windows programs expect the environment block to be sorted. */ | |
2754 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2755 | ||
0ae1c716 | 2756 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
2757 | |
2758 | /* Copy env strings into new buffer. */ | |
2759 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2760 | { | |
2761 | strcpy (temp, env[i]); | |
2762 | temp += strlen (temp) + 1; | |
2763 | } | |
2764 | ||
2765 | /* Final nil string to terminate new env. */ | |
2766 | *temp = 0; | |
2767 | ||
dc05df57 | 2768 | windows_init_thread_list (); |
d0d0ab16 CV |
2769 | ret = CreateProcessA (0, |
2770 | args, /* command line */ | |
2771 | NULL, /* Security */ | |
2772 | NULL, /* thread */ | |
2773 | TRUE, /* inherit handles */ | |
2774 | flags, /* start flags */ | |
c93dbcba | 2775 | w32env, /* environment */ |
d092c5a2 | 2776 | inferior_cwd, /* current directory */ |
d0d0ab16 CV |
2777 | &si, |
2778 | &pi); | |
41b4aadc CF |
2779 | if (tty != INVALID_HANDLE_VALUE) |
2780 | CloseHandle (tty); | |
8ba42bc5 EZ |
2781 | if (fd_inp >= 0) |
2782 | _close (fd_inp); | |
2783 | if (fd_out >= 0) | |
2784 | _close (fd_out); | |
2785 | if (fd_err >= 0) | |
2786 | _close (fd_err); | |
2787 | #endif /* !__CYGWIN__ */ | |
2becadee | 2788 | |
24e60978 | 2789 | if (!ret) |
d50a0ce2 | 2790 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 2791 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 2792 | |
c1766e7d PM |
2793 | CloseHandle (pi.hThread); |
2794 | CloseHandle (pi.hProcess); | |
2795 | ||
dfe7f3ac CF |
2796 | if (useshell && shell[0] != '\0') |
2797 | saw_create = -1; | |
2798 | else | |
2799 | saw_create = 0; | |
2800 | ||
f6ac5f3d | 2801 | do_initial_windows_stuff (this, pi.dwProcessId, 0); |
d3a09475 | 2802 | |
17617f2d | 2803 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
2804 | } |
2805 | ||
f6ac5f3d PA |
2806 | void |
2807 | windows_nat_target::mourn_inferior () | |
24e60978 | 2808 | { |
17617f2d | 2809 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 2810 | x86_cleanup_dregs(); |
bf25528d CF |
2811 | if (open_process_used) |
2812 | { | |
2813 | CHECK (CloseHandle (current_process_handle)); | |
2814 | open_process_used = 0; | |
2815 | } | |
f6ac5f3d | 2816 | inf_child_target::mourn_inferior (); |
24e60978 SC |
2817 | } |
2818 | ||
24e60978 | 2819 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 2820 | ^C on the controlling terminal. */ |
24e60978 | 2821 | |
f6ac5f3d PA |
2822 | void |
2823 | windows_nat_target::interrupt () | |
24e60978 | 2824 | { |
1ef980b9 | 2825 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2826 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2827 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2828 | } |
2829 | ||
44f38867 PA |
2830 | /* Helper for windows_xfer_partial that handles memory transfers. |
2831 | Arguments are like target_xfer_partial. */ | |
2832 | ||
9b409511 | 2833 | static enum target_xfer_status |
44f38867 | 2834 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 2835 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 2836 | { |
5732a500 | 2837 | SIZE_T done = 0; |
44f38867 | 2838 | BOOL success; |
9e52adf9 | 2839 | DWORD lasterror = 0; |
44f38867 PA |
2840 | |
2841 | if (writebuf != NULL) | |
24e60978 | 2842 | { |
a2388568 | 2843 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 2844 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2845 | success = WriteProcessMemory (current_process_handle, |
2846 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
2847 | len, &done); | |
9e52adf9 | 2848 | if (!success) |
7126d5c8 | 2849 | lasterror = GetLastError (); |
2b008701 | 2850 | FlushInstructionCache (current_process_handle, |
2c647436 | 2851 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2852 | } |
2853 | else | |
2854 | { | |
a2388568 | 2855 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 2856 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2857 | success = ReadProcessMemory (current_process_handle, |
2858 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
2859 | len, &done); | |
9e52adf9 | 2860 | if (!success) |
7126d5c8 | 2861 | lasterror = GetLastError (); |
24e60978 | 2862 | } |
9b409511 | 2863 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 2864 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 2865 | return TARGET_XFER_OK; |
9e52adf9 | 2866 | else |
9b409511 | 2867 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
2868 | } |
2869 | ||
f6ac5f3d PA |
2870 | void |
2871 | windows_nat_target::kill () | |
24e60978 | 2872 | { |
3cee93ac CF |
2873 | CHECK (TerminateProcess (current_process_handle, 0)); |
2874 | ||
b5edcb45 ILT |
2875 | for (;;) |
2876 | { | |
17617f2d | 2877 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 2878 | break; |
3cee93ac | 2879 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2880 | break; |
3cee93ac | 2881 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2882 | break; |
2883 | } | |
2884 | ||
9eee20eb | 2885 | target_mourn_inferior (inferior_ptid); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
2886 | } |
2887 | ||
f6ac5f3d PA |
2888 | void |
2889 | windows_nat_target::close () | |
24e60978 | 2890 | { |
dc05df57 | 2891 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
dfd4cc63 | 2892 | ptid_get_pid (inferior_ptid))); |
24e60978 | 2893 | } |
1ef980b9 | 2894 | |
581e13c1 | 2895 | /* Convert pid to printable format. */ |
f6ac5f3d PA |
2896 | const char * |
2897 | windows_nat_target::pid_to_str (ptid_t ptid) | |
24e60978 | 2898 | { |
3ee6f623 | 2899 | static char buf[80]; |
3ee6f623 | 2900 | |
2dc38344 PA |
2901 | if (ptid_get_tid (ptid) != 0) |
2902 | { | |
2903 | snprintf (buf, sizeof (buf), "Thread %d.0x%lx", | |
2904 | ptid_get_pid (ptid), ptid_get_tid (ptid)); | |
2905 | return buf; | |
2906 | } | |
2907 | ||
2908 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2909 | } |
2910 | ||
9b409511 | 2911 | static enum target_xfer_status |
dc05df57 | 2912 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
2913 | enum target_object object, const char *annex, |
2914 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2915 | ULONGEST offset, ULONGEST len, | |
2916 | ULONGEST *xfered_len) | |
3cb8e7f6 | 2917 | { |
de1b3c3d PA |
2918 | struct obstack obstack; |
2919 | const char *buf; | |
2920 | LONGEST len_avail; | |
3cb8e7f6 | 2921 | struct so_list *so; |
3cb8e7f6 | 2922 | |
de1b3c3d | 2923 | if (writebuf) |
2ed4b548 | 2924 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 2925 | |
de1b3c3d PA |
2926 | obstack_init (&obstack); |
2927 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2928 | for (so = solib_start.next; so; so = so->next) | |
d0e449a1 SM |
2929 | { |
2930 | lm_info_windows *li = (lm_info_windows *) so->lm_info; | |
2931 | ||
2932 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) | |
2933 | (uintptr_t) li->load_addr, | |
2934 | target_gdbarch (), &obstack); | |
2935 | } | |
de1b3c3d | 2936 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2937 | |
0ae1c716 | 2938 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
2939 | len_avail = strlen (buf); |
2940 | if (offset >= len_avail) | |
49dc7f4b PM |
2941 | len= 0; |
2942 | else | |
2943 | { | |
2944 | if (len > len_avail - offset) | |
2945 | len = len_avail - offset; | |
2946 | memcpy (readbuf, buf + offset, len); | |
2947 | } | |
3cb8e7f6 | 2948 | |
de1b3c3d | 2949 | obstack_free (&obstack, NULL); |
9b409511 | 2950 | *xfered_len = (ULONGEST) len; |
0837c976 | 2951 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
2952 | } |
2953 | ||
f6ac5f3d PA |
2954 | enum target_xfer_status |
2955 | windows_nat_target::xfer_partial (enum target_object object, | |
2956 | const char *annex, gdb_byte *readbuf, | |
2957 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, | |
2958 | ULONGEST *xfered_len) | |
3cb8e7f6 | 2959 | { |
de1b3c3d | 2960 | switch (object) |
3cb8e7f6 | 2961 | { |
de1b3c3d | 2962 | case TARGET_OBJECT_MEMORY: |
9b409511 | 2963 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
2964 | |
2965 | case TARGET_OBJECT_LIBRARIES: | |
f6ac5f3d | 2966 | return windows_xfer_shared_libraries (this, object, annex, readbuf, |
9b409511 | 2967 | writebuf, offset, len, xfered_len); |
3929abe9 | 2968 | |
de1b3c3d | 2969 | default: |
f6ac5f3d PA |
2970 | return beneath->xfer_partial (object, annex, |
2971 | readbuf, writebuf, offset, len, | |
2972 | xfered_len); | |
3929abe9 | 2973 | } |
02c5aecd CF |
2974 | } |
2975 | ||
711e434b PM |
2976 | /* Provide thread local base, i.e. Thread Information Block address. |
2977 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
2978 | ||
57810aa7 | 2979 | bool |
f6ac5f3d | 2980 | windows_nat_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) |
711e434b | 2981 | { |
876d1cd7 | 2982 | windows_thread_info *th; |
711e434b PM |
2983 | |
2984 | th = thread_rec (ptid_get_tid (ptid), 0); | |
2985 | if (th == NULL) | |
57810aa7 | 2986 | return false; |
711e434b PM |
2987 | |
2988 | if (addr != NULL) | |
2989 | *addr = th->thread_local_base; | |
2990 | ||
57810aa7 | 2991 | return true; |
711e434b PM |
2992 | } |
2993 | ||
f6ac5f3d PA |
2994 | ptid_t |
2995 | windows_nat_target::get_ada_task_ptid (long lwp, long thread) | |
1e2f1c5c JB |
2996 | { |
2997 | return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp); | |
2998 | } | |
2999 | ||
24cdb46e РИ |
3000 | /* Implementation of the to_thread_name method. */ |
3001 | ||
f6ac5f3d PA |
3002 | const char * |
3003 | windows_nat_target::thread_name (struct thread_info *thr) | |
24cdb46e РИ |
3004 | { |
3005 | return thread_rec (ptid_get_tid (thr->ptid), 0)->name; | |
3006 | } | |
3007 | ||
24e60978 SC |
3008 | |
3009 | void | |
dc05df57 | 3010 | _initialize_windows_nat (void) |
24e60978 | 3011 | { |
df7e5265 GB |
3012 | x86_dr_low.set_control = cygwin_set_dr7; |
3013 | x86_dr_low.set_addr = cygwin_set_dr; | |
3014 | x86_dr_low.get_addr = cygwin_get_dr; | |
3015 | x86_dr_low.get_status = cygwin_get_dr6; | |
3016 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 3017 | |
df7e5265 GB |
3018 | /* x86_dr_low.debug_register_length field is set by |
3019 | calling x86_set_debug_register_length function | |
51a9c8c5 | 3020 | in processor windows specific native file. */ |
fa58ee11 | 3021 | |
d9f719f1 | 3022 | add_inf_child_target (&the_windows_nat_target); |
1ef980b9 | 3023 | |
d0d0ab16 CV |
3024 | #ifdef __CYGWIN__ |
3025 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
3026 | #endif | |
3027 | ||
463888ab РИ |
3028 | add_com ("signal-event", class_run, signal_event_command, _("\ |
3029 | Signal a crashed process with event ID, to allow its debugging.\n\ | |
3030 | This command is needed in support of setting up GDB as JIT debugger on \ | |
3031 | MS-Windows. The command should be invoked from the GDB command line using \ | |
3032 | the '-ex' command-line option. The ID of the event that blocks the \ | |
3033 | crashed process will be supplied by the Windows JIT debugging mechanism.")); | |
3034 | ||
10325bc5 | 3035 | #ifdef __CYGWIN__ |
5bf193a2 AC |
3036 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
3037 | Set use of shell to start subprocess."), _("\ | |
3038 | Show use of shell to start subprocess."), NULL, | |
3039 | NULL, | |
3040 | NULL, /* FIXME: i18n: */ | |
3041 | &setlist, &showlist); | |
3042 | ||
581e13c1 MS |
3043 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
3044 | &cygwin_exceptions, _("\ | |
09280ddf CF |
3045 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
3046 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
3047 | NULL, | |
3048 | NULL, /* FIXME: i18n: */ | |
3049 | &setlist, &showlist); | |
10325bc5 | 3050 | #endif |
09280ddf | 3051 | |
5bf193a2 AC |
3052 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
3053 | Set creation of new console when creating child process."), _("\ | |
3054 | Show creation of new console when creating child process."), NULL, | |
3055 | NULL, | |
3056 | NULL, /* FIXME: i18n: */ | |
3057 | &setlist, &showlist); | |
3058 | ||
3059 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
3060 | Set creation of new group when creating child process."), _("\ | |
3061 | Show creation of new group when creating child process."), NULL, | |
3062 | NULL, | |
3063 | NULL, /* FIXME: i18n: */ | |
3064 | &setlist, &showlist); | |
3065 | ||
3066 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
3067 | Set whether to display execution in child process."), _("\ | |
3068 | Show whether to display execution in child process."), NULL, | |
3069 | NULL, | |
3070 | NULL, /* FIXME: i18n: */ | |
3071 | &setlist, &showlist); | |
3072 | ||
3073 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
3074 | Set whether to display kernel events in child process."), _("\ | |
3075 | Show whether to display kernel events in child process."), NULL, | |
3076 | NULL, | |
3077 | NULL, /* FIXME: i18n: */ | |
3078 | &setlist, &showlist); | |
3079 | ||
3080 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
3081 | Set whether to display memory accesses in child process."), _("\ | |
3082 | Show whether to display memory accesses in child process."), NULL, | |
3083 | NULL, | |
3084 | NULL, /* FIXME: i18n: */ | |
3085 | &setlist, &showlist); | |
3086 | ||
3087 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
3088 | &debug_exceptions, _("\ | |
3089 | Set whether to display kernel exceptions in child process."), _("\ | |
3090 | Show whether to display kernel exceptions in child process."), NULL, | |
3091 | NULL, | |
3092 | NULL, /* FIXME: i18n: */ | |
3093 | &setlist, &showlist); | |
1ef980b9 | 3094 | |
711e434b | 3095 | init_w32_command_list (); |
c1748f97 PM |
3096 | |
3097 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 3098 | _("Display selectors infos."), |
c1748f97 | 3099 | &info_w32_cmdlist); |
24e60978 | 3100 | } |
3cee93ac | 3101 | |
fa4ba8da PM |
3102 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
3103 | ||
3104 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
3105 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 3106 | actually set up when windows_continue is called. */ |
9bb9e8ad | 3107 | static void |
fa4ba8da PM |
3108 | cygwin_set_dr (int i, CORE_ADDR addr) |
3109 | { | |
3110 | if (i < 0 || i > 3) | |
3111 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3112 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 3113 | dr[i] = addr; |
fa4ba8da PM |
3114 | debug_registers_changed = 1; |
3115 | debug_registers_used = 1; | |
3116 | } | |
3117 | ||
3118 | /* Pass the value VAL to the inferior in the DR7 debug control | |
3119 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 3120 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
3121 | static void |
3122 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 3123 | { |
9bb9e8ad | 3124 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
3125 | debug_registers_changed = 1; |
3126 | debug_registers_used = 1; | |
3127 | } | |
3128 | ||
7b50312a PA |
3129 | /* Get the value of debug register I from the inferior. */ |
3130 | ||
3131 | static CORE_ADDR | |
3132 | cygwin_get_dr (int i) | |
3133 | { | |
3134 | return dr[i]; | |
3135 | } | |
3136 | ||
fa4ba8da PM |
3137 | /* Get the value of the DR6 debug status register from the inferior. |
3138 | Here we just return the value stored in dr[6] | |
3139 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 3140 | static unsigned long |
fa4ba8da PM |
3141 | cygwin_get_dr6 (void) |
3142 | { | |
9bb9e8ad | 3143 | return (unsigned long) dr[6]; |
fa4ba8da PM |
3144 | } |
3145 | ||
7b50312a PA |
3146 | /* Get the value of the DR7 debug status register from the inferior. |
3147 | Here we just return the value stored in dr[7] by the last call to | |
3148 | thread_rec for current_event.dwThreadId id. */ | |
3149 | ||
3150 | static unsigned long | |
3151 | cygwin_get_dr7 (void) | |
3152 | { | |
3153 | return (unsigned long) dr[7]; | |
3154 | } | |
3155 | ||
2dc38344 | 3156 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 3157 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 3158 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
f6ac5f3d | 3159 | |
57810aa7 | 3160 | bool |
f6ac5f3d | 3161 | windows_nat_target::thread_alive (ptid_t ptid) |
3cee93ac | 3162 | { |
2dc38344 PA |
3163 | int tid; |
3164 | ||
3165 | gdb_assert (ptid_get_tid (ptid) != 0); | |
3166 | tid = ptid_get_tid (ptid); | |
39f77062 | 3167 | |
57810aa7 | 3168 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) != WAIT_OBJECT_0; |
3cee93ac CF |
3169 | } |
3170 | ||
2a3d5645 CF |
3171 | void |
3172 | _initialize_check_for_gdb_ini (void) | |
3173 | { | |
3174 | char *homedir; | |
3175 | if (inhibit_gdbinit) | |
3176 | return; | |
3177 | ||
3178 | homedir = getenv ("HOME"); | |
3179 | if (homedir) | |
3180 | { | |
3181 | char *p; | |
3182 | char *oldini = (char *) alloca (strlen (homedir) + | |
1270fac6 | 3183 | sizeof ("gdb.ini") + 1); |
2a3d5645 CF |
3184 | strcpy (oldini, homedir); |
3185 | p = strchr (oldini, '\0'); | |
0ba1096a | 3186 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
3187 | *p++ = '/'; |
3188 | strcpy (p, "gdb.ini"); | |
3189 | if (access (oldini, 0) == 0) | |
3190 | { | |
3191 | int len = strlen (oldini); | |
1270fac6 | 3192 | char *newini = (char *) alloca (len + 2); |
08850b56 | 3193 | |
1270fac6 | 3194 | xsnprintf (newini, len + 2, "%.*s.gdbinit", |
08850b56 | 3195 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 3196 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
3197 | } |
3198 | } | |
3199 | } | |
33605d39 | 3200 | |
2b008701 | 3201 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 3202 | these functions could not be found. */ |
2b008701 CF |
3203 | static BOOL WINAPI |
3204 | bad_DebugActiveProcessStop (DWORD w) | |
3205 | { | |
3206 | return FALSE; | |
3207 | } | |
3208 | static BOOL WINAPI | |
3209 | bad_DebugBreakProcess (HANDLE w) | |
3210 | { | |
3211 | return FALSE; | |
3212 | } | |
3213 | static BOOL WINAPI | |
3214 | bad_DebugSetProcessKillOnExit (BOOL w) | |
3215 | { | |
3216 | return FALSE; | |
3217 | } | |
3218 | static BOOL WINAPI | |
3219 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
3220 | { | |
3221 | return FALSE; | |
3222 | } | |
b3c613f2 CF |
3223 | |
3224 | #ifdef __USEWIDE | |
2b008701 | 3225 | static DWORD WINAPI |
b3c613f2 | 3226 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
3227 | { |
3228 | return 0; | |
3229 | } | |
d0d0ab16 CV |
3230 | #else |
3231 | static DWORD WINAPI | |
b3c613f2 | 3232 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
3233 | { |
3234 | return 0; | |
3235 | } | |
3236 | #endif | |
b3c613f2 | 3237 | |
2b008701 CF |
3238 | static BOOL WINAPI |
3239 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
3240 | { | |
3241 | return FALSE; | |
3242 | } | |
3243 | ||
418c6cb3 CF |
3244 | static BOOL WINAPI |
3245 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
3246 | { | |
3247 | return FALSE; | |
3248 | } | |
3249 | ||
cd44747c PM |
3250 | static BOOL WINAPI |
3251 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
3252 | { | |
3253 | f->nFont = 0; | |
3254 | return 1; | |
3255 | } | |
3256 | static COORD WINAPI | |
3257 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
3258 | { | |
3259 | COORD size; | |
3260 | size.X = 8; | |
3261 | size.Y = 12; | |
3262 | return size; | |
3263 | } | |
3264 | ||
2b008701 | 3265 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 3266 | of Windows. */ |
d603d4b3 | 3267 | |
33605d39 | 3268 | void |
2b008701 | 3269 | _initialize_loadable (void) |
33605d39 | 3270 | { |
2b008701 CF |
3271 | HMODULE hm = NULL; |
3272 | ||
43499ea3 PA |
3273 | #define GPA(m, func) \ |
3274 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
3275 | ||
2b008701 CF |
3276 | hm = LoadLibrary ("kernel32.dll"); |
3277 | if (hm) | |
33605d39 | 3278 | { |
43499ea3 PA |
3279 | GPA (hm, DebugActiveProcessStop); |
3280 | GPA (hm, DebugBreakProcess); | |
3281 | GPA (hm, DebugSetProcessKillOnExit); | |
3282 | GPA (hm, GetConsoleFontSize); | |
3283 | GPA (hm, DebugActiveProcessStop); | |
3284 | GPA (hm, GetCurrentConsoleFont); | |
2b008701 | 3285 | } |
33605d39 | 3286 | |
2b008701 | 3287 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 3288 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
3289 | if (!DebugBreakProcess) |
3290 | DebugBreakProcess = bad_DebugBreakProcess; | |
3291 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 3292 | { |
b3c613f2 CF |
3293 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
3294 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 3295 | } |
cd44747c PM |
3296 | if (!GetConsoleFontSize) |
3297 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
3298 | if (!GetCurrentConsoleFont) | |
3299 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 3300 | |
2b008701 | 3301 | /* Load optional functions used for retrieving filename information |
581e13c1 | 3302 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
3303 | hm = LoadLibrary ("psapi.dll"); |
3304 | if (hm) | |
3305 | { | |
43499ea3 PA |
3306 | GPA (hm, EnumProcessModules); |
3307 | GPA (hm, GetModuleInformation); | |
aec47d1d JB |
3308 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
3309 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
3310 | } |
3311 | ||
b3c613f2 | 3312 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
3313 | { |
3314 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 3315 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
3316 | EnumProcessModules = bad_EnumProcessModules; |
3317 | GetModuleInformation = bad_GetModuleInformation; | |
3318 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
3319 | /* This will probably fail on Windows 9x/Me. Let the user know |
3320 | that we're missing some functionality. */ | |
3321 | warning(_("\ | |
3322 | cannot automatically find executable file or library to read symbols.\n\ | |
3323 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
3324 | } |
3325 | ||
3326 | hm = LoadLibrary ("advapi32.dll"); | |
3327 | if (hm) | |
3328 | { | |
43499ea3 PA |
3329 | GPA (hm, OpenProcessToken); |
3330 | GPA (hm, LookupPrivilegeValueA); | |
3331 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 3332 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
3333 | else is needed. */ |
3334 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
3335 | || !AdjustTokenPrivileges) | |
b3c613f2 | 3336 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 3337 | } |
43499ea3 PA |
3338 | |
3339 | #undef GPA | |
33605d39 | 3340 | } |