Commit | Line | Data |
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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
b811d2c2 | 3 | Copyright (C) 1995-2020 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 | |
0ba1096a | 47 | #include "filenames.h" |
1ef980b9 SC |
48 | #include "symfile.h" |
49 | #include "objfiles.h" | |
92107356 | 50 | #include "gdb_bfd.h" |
de1b3c3d | 51 | #include "gdb_obstack.h" |
fdfa3315 | 52 | #include "gdbthread.h" |
24e60978 | 53 | #include "gdbcmd.h" |
1e37c281 | 54 | #include <unistd.h> |
4646aa9d | 55 | #include "exec.h" |
3ee6f623 | 56 | #include "solist.h" |
3cb8e7f6 | 57 | #include "solib.h" |
de1b3c3d | 58 | #include "xml-support.h" |
463888ab | 59 | #include "inttypes.h" |
24e60978 | 60 | |
6c7de422 MK |
61 | #include "i386-tdep.h" |
62 | #include "i387-tdep.h" | |
63 | ||
31b060a2 CF |
64 | #include "windows-tdep.h" |
65 | #include "windows-nat.h" | |
df7e5265 | 66 | #include "x86-nat.h" |
ecc13e53 | 67 | #include "complaints.h" |
51a9c8c5 | 68 | #include "inf-child.h" |
268a13a5 TT |
69 | #include "gdbsupport/gdb_tilde_expand.h" |
70 | #include "gdbsupport/pathstuff.h" | |
559e7e50 | 71 | #include "gdbsupport/gdb_wait.h" |
de1b3c3d | 72 | |
46f9f931 HD |
73 | #define STATUS_WX86_BREAKPOINT 0x4000001F |
74 | #define STATUS_WX86_SINGLE_STEP 0x4000001E | |
75 | ||
418c6cb3 | 76 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
77 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
78 | #define DebugBreakProcess dyn_DebugBreakProcess | |
79 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
80 | #define EnumProcessModules dyn_EnumProcessModules | |
46f9f931 | 81 | #define EnumProcessModulesEx dyn_EnumProcessModulesEx |
2b008701 | 82 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
83 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
84 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
85 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
86 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
46f9f931 HD |
87 | #define Wow64SuspendThread dyn_Wow64SuspendThread |
88 | #define Wow64GetThreadContext dyn_Wow64GetThreadContext | |
89 | #define Wow64SetThreadContext dyn_Wow64SetThreadContext | |
90 | #define Wow64GetThreadSelectorEntry dyn_Wow64GetThreadSelectorEntry | |
2b008701 | 91 | |
43499ea3 PA |
92 | typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL, |
93 | PTOKEN_PRIVILEGES, | |
94 | DWORD, PTOKEN_PRIVILEGES, | |
95 | PDWORD); | |
96 | static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges; | |
97 | ||
98 | typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD); | |
99 | static DebugActiveProcessStop_ftype *DebugActiveProcessStop; | |
100 | ||
101 | typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE); | |
102 | static DebugBreakProcess_ftype *DebugBreakProcess; | |
103 | ||
104 | typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL); | |
105 | static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit; | |
106 | ||
107 | typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD, | |
108 | LPDWORD); | |
109 | static EnumProcessModules_ftype *EnumProcessModules; | |
110 | ||
46f9f931 HD |
111 | #ifdef __x86_64__ |
112 | typedef BOOL WINAPI (EnumProcessModulesEx_ftype) (HANDLE, HMODULE *, DWORD, | |
113 | LPDWORD, DWORD); | |
114 | static EnumProcessModulesEx_ftype *EnumProcessModulesEx; | |
115 | #endif | |
116 | ||
43499ea3 PA |
117 | typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE, |
118 | LPMODULEINFO, DWORD); | |
119 | static GetModuleInformation_ftype *GetModuleInformation; | |
120 | ||
121 | typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID); | |
122 | static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA; | |
123 | ||
124 | typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE); | |
125 | static OpenProcessToken_ftype *OpenProcessToken; | |
126 | ||
127 | typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL, | |
128 | CONSOLE_FONT_INFO *); | |
129 | static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont; | |
130 | ||
131 | typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD); | |
132 | static GetConsoleFontSize_ftype *GetConsoleFontSize; | |
2b008701 | 133 | |
46f9f931 HD |
134 | #ifdef __x86_64__ |
135 | typedef DWORD WINAPI (Wow64SuspendThread_ftype) (HANDLE); | |
136 | static Wow64SuspendThread_ftype *Wow64SuspendThread; | |
137 | ||
138 | typedef BOOL WINAPI (Wow64GetThreadContext_ftype) (HANDLE, PWOW64_CONTEXT); | |
139 | static Wow64GetThreadContext_ftype *Wow64GetThreadContext; | |
140 | ||
141 | typedef BOOL WINAPI (Wow64SetThreadContext_ftype) (HANDLE, | |
142 | const WOW64_CONTEXT *); | |
143 | static Wow64SetThreadContext_ftype *Wow64SetThreadContext; | |
144 | ||
145 | typedef BOOL WINAPI (Wow64GetThreadSelectorEntry_ftype) (HANDLE, DWORD, | |
146 | PLDT_ENTRY); | |
147 | static Wow64GetThreadSelectorEntry_ftype *Wow64GetThreadSelectorEntry; | |
148 | #endif | |
149 | ||
b3c613f2 CF |
150 | #undef STARTUPINFO |
151 | #undef CreateProcess | |
152 | #undef GetModuleFileNameEx | |
153 | ||
154 | #ifndef __CYGWIN__ | |
155 | # define __PMAX (MAX_PATH + 1) | |
43499ea3 PA |
156 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD); |
157 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
158 | # define STARTUPINFO STARTUPINFOA |
159 | # define CreateProcess CreateProcessA | |
160 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
161 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
162 | #else | |
163 | # define __PMAX PATH_MAX | |
581e13c1 | 164 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
165 | static CORE_ADDR cygwin_load_start; |
166 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
167 | # define __USEWIDE |
168 | typedef wchar_t cygwin_buf_t; | |
43499ea3 PA |
169 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, |
170 | LPWSTR, DWORD); | |
171 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
172 | # define STARTUPINFO STARTUPINFOW |
173 | # define CreateProcess CreateProcessW | |
174 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
175 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 176 | #endif |
a244bdca | 177 | |
581e13c1 MS |
178 | static int have_saved_context; /* True if we've saved context from a |
179 | cygwin signal. */ | |
15766370 | 180 | #ifdef __CYGWIN__ |
85102364 | 181 | static CONTEXT saved_context; /* Contains the saved context from a |
581e13c1 | 182 | cygwin signal. */ |
15766370 | 183 | #endif |
a244bdca | 184 | |
0714f9bf SS |
185 | /* If we're not using the old Cygwin header file set, define the |
186 | following which never should have been in the generic Win32 API | |
581e13c1 | 187 | headers in the first place since they were our own invention... */ |
0714f9bf | 188 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 189 | enum |
8e860359 CF |
190 | { |
191 | FLAG_TRACE_BIT = 0x100, | |
8e860359 | 192 | }; |
0714f9bf SS |
193 | #endif |
194 | ||
5851ab76 JB |
195 | #ifndef CONTEXT_EXTENDED_REGISTERS |
196 | /* This macro is only defined on ia32. It only makes sense on this target, | |
197 | so define it as zero if not already defined. */ | |
198 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
199 | #endif | |
200 | ||
f0666312 JT |
201 | #define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \ |
202 | | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \ | |
203 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 204 | |
41b4aadc | 205 | static uintptr_t dr[8]; |
87a45c96 CF |
206 | static int debug_registers_changed; |
207 | static int debug_registers_used; | |
16d905e2 CF |
208 | |
209 | static int windows_initialization_done; | |
6537bb24 | 210 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 211 | |
24cdb46e РИ |
212 | /* The exception thrown by a program to tell the debugger the name of |
213 | a thread. The exception record contains an ID of a thread and a | |
214 | name to give it. This exception has no documented name, but MSDN | |
215 | dubs it "MS_VC_EXCEPTION" in one code example. */ | |
216 | #define MS_VC_EXCEPTION 0x406d1388 | |
217 | ||
218 | typedef enum | |
219 | { | |
220 | HANDLE_EXCEPTION_UNHANDLED = 0, | |
221 | HANDLE_EXCEPTION_HANDLED, | |
222 | HANDLE_EXCEPTION_IGNORED | |
223 | } handle_exception_result; | |
224 | ||
3cee93ac | 225 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 226 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
227 | #ifndef _CYGWIN_SIGNAL_STRING |
228 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
229 | #endif | |
3cee93ac | 230 | |
29fe111d | 231 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 232 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
233 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
234 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
235 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 236 | |
9bb9e8ad PM |
237 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
238 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 239 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 240 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 241 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 242 | |
a493e3e2 | 243 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
581e13c1 | 244 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 245 | |
3cee93ac | 246 | /* Thread information structure used to track information that is |
6537bb24 | 247 | not available in gdb's thread structure. */ |
876d1cd7 | 248 | typedef struct windows_thread_info_struct |
3a4b77d8 | 249 | { |
876d1cd7 | 250 | struct windows_thread_info_struct *next; |
3a4b77d8 JM |
251 | DWORD id; |
252 | HANDLE h; | |
711e434b | 253 | CORE_ADDR thread_local_base; |
3a4b77d8 | 254 | char *name; |
6537bb24 | 255 | int suspended; |
3ade5333 | 256 | int reload_context; |
46f9f931 HD |
257 | union |
258 | { | |
259 | CONTEXT context; | |
260 | #ifdef __x86_64__ | |
261 | WOW64_CONTEXT wow64_context; | |
262 | #endif | |
263 | }; | |
8e860359 | 264 | } |
876d1cd7 | 265 | windows_thread_info; |
1e37c281 | 266 | |
876d1cd7 | 267 | static windows_thread_info thread_head; |
24e60978 | 268 | |
581e13c1 | 269 | /* The process and thread handles for the above context. */ |
24e60978 | 270 | |
3cee93ac CF |
271 | static DEBUG_EVENT current_event; /* The current debug event from |
272 | WaitForDebugEvent */ | |
273 | static HANDLE current_process_handle; /* Currently executing process */ | |
876d1cd7 | 274 | static windows_thread_info *current_thread; /* Info on currently selected thread */ |
7928d571 | 275 | static EXCEPTION_RECORD siginfo_er; /* Contents of $_siginfo */ |
24e60978 | 276 | |
581e13c1 | 277 | /* Counts of things. */ |
24e60978 SC |
278 | static int exception_count = 0; |
279 | static int event_count = 0; | |
dfe7f3ac | 280 | static int saw_create; |
bf25528d | 281 | static int open_process_used = 0; |
46f9f931 HD |
282 | #ifdef __x86_64__ |
283 | static bool wow64_process = false; | |
284 | static bool ignore_first_breakpoint = false; | |
285 | #endif | |
24e60978 | 286 | |
581e13c1 | 287 | /* User options. */ |
491144b5 | 288 | static bool new_console = false; |
10325bc5 | 289 | #ifdef __CYGWIN__ |
491144b5 | 290 | static bool cygwin_exceptions = false; |
10325bc5 | 291 | #endif |
491144b5 CB |
292 | static bool new_group = true; |
293 | static bool debug_exec = false; /* show execution */ | |
294 | static bool debug_events = false; /* show events from kernel */ | |
295 | static bool debug_memory = false; /* show target memory accesses */ | |
296 | static bool debug_exceptions = false; /* show target exceptions */ | |
297 | static bool useshell = false; /* use shell for subprocesses */ | |
dfe7f3ac | 298 | |
7e63b4e4 | 299 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 300 | in the windows exception context vector. |
24e60978 | 301 | |
3cee93ac | 302 | It also contains the bit mask needed to load the register in question. |
24e60978 | 303 | |
7e63b4e4 JB |
304 | The contents of this table can only be computed by the units |
305 | that provide CPU-specific support for Windows native debugging. | |
306 | These units should set the table by calling | |
dc05df57 | 307 | windows_set_context_register_offsets. |
7e63b4e4 | 308 | |
24e60978 SC |
309 | One day we could read a reg, we could inspect the context we |
310 | already have loaded, if it doesn't have the bit set that we need, | |
311 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 312 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
313 | write a register, first we have to ensure that the context contains |
314 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 315 | out bit. */ |
24e60978 | 316 | |
7e63b4e4 | 317 | static const int *mappings; |
d3a09475 | 318 | |
d40dc7a8 JB |
319 | /* The function to use in order to determine whether a register is |
320 | a segment register or not. */ | |
321 | static segment_register_p_ftype *segment_register_p; | |
322 | ||
73c13fe6 TT |
323 | /* See windows_nat_target::resume to understand why this is commented |
324 | out. */ | |
325 | #if 0 | |
24e60978 | 326 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 327 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
328 | |
329 | struct xlate_exception | |
330 | { | |
73c13fe6 | 331 | DWORD them; |
2ea28649 | 332 | enum gdb_signal us; |
24e60978 SC |
333 | }; |
334 | ||
73c13fe6 | 335 | static const struct xlate_exception xlate[] = |
24e60978 | 336 | { |
a493e3e2 PA |
337 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
338 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
339 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
340 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
341 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
73c13fe6 TT |
342 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE} |
343 | }; | |
24e60978 | 344 | |
73c13fe6 | 345 | #endif /* 0 */ |
f6ac5f3d PA |
346 | |
347 | struct windows_nat_target final : public x86_nat_target<inf_child_target> | |
348 | { | |
349 | void close () override; | |
350 | ||
351 | void attach (const char *, int) override; | |
352 | ||
353 | bool attach_no_wait () override | |
354 | { return true; } | |
355 | ||
356 | void detach (inferior *, int) override; | |
357 | ||
358 | void resume (ptid_t, int , enum gdb_signal) override; | |
359 | ||
360 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
361 | ||
362 | void fetch_registers (struct regcache *, int) override; | |
363 | void store_registers (struct regcache *, int) override; | |
364 | ||
365 | enum target_xfer_status xfer_partial (enum target_object object, | |
366 | const char *annex, | |
367 | gdb_byte *readbuf, | |
368 | const gdb_byte *writebuf, | |
369 | ULONGEST offset, ULONGEST len, | |
370 | ULONGEST *xfered_len) override; | |
371 | ||
372 | void files_info () override; | |
373 | ||
374 | void kill () override; | |
375 | ||
376 | void create_inferior (const char *, const std::string &, | |
377 | char **, int) override; | |
378 | ||
379 | void mourn_inferior () override; | |
380 | ||
57810aa7 | 381 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d | 382 | |
a068643d | 383 | std::string pid_to_str (ptid_t) override; |
f6ac5f3d PA |
384 | |
385 | void interrupt () override; | |
386 | ||
387 | char *pid_to_exec_file (int pid) override; | |
388 | ||
389 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
390 | ||
57810aa7 | 391 | bool get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; |
f6ac5f3d PA |
392 | |
393 | const char *thread_name (struct thread_info *) override; | |
5b6d1e4f PA |
394 | |
395 | int get_windows_debug_event (int pid, struct target_waitstatus *ourstatus); | |
f6ac5f3d PA |
396 | }; |
397 | ||
398 | static windows_nat_target the_windows_nat_target; | |
399 | ||
7e63b4e4 JB |
400 | /* Set the MAPPINGS static global to OFFSETS. |
401 | See the description of MAPPINGS for more details. */ | |
402 | ||
46f9f931 | 403 | static void |
dc05df57 | 404 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
405 | { |
406 | mappings = offsets; | |
407 | } | |
408 | ||
46f9f931 HD |
409 | /* Set the function that should be used by this module to determine |
410 | whether a given register is a segment register or not. */ | |
d40dc7a8 | 411 | |
46f9f931 | 412 | static void |
d40dc7a8 JB |
413 | windows_set_segment_register_p (segment_register_p_ftype *fun) |
414 | { | |
415 | segment_register_p = fun; | |
416 | } | |
417 | ||
fa4ba8da PM |
418 | static void |
419 | check (BOOL ok, const char *file, int line) | |
420 | { | |
421 | if (!ok) | |
d50a0ce2 CV |
422 | printf_filtered ("error return %s:%d was %u\n", file, line, |
423 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
424 | } |
425 | ||
6537bb24 PA |
426 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
427 | then also retrieve the context for this thread. If GET_CONTEXT is | |
428 | negative, then don't suspend the thread. */ | |
876d1cd7 | 429 | static windows_thread_info * |
3cee93ac | 430 | thread_rec (DWORD id, int get_context) |
24e60978 | 431 | { |
876d1cd7 | 432 | windows_thread_info *th; |
3cee93ac | 433 | |
3a4b77d8 | 434 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
435 | if (th->id == id) |
436 | { | |
6537bb24 | 437 | if (!th->suspended && get_context) |
3cee93ac | 438 | { |
8a892701 | 439 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
440 | { |
441 | if (SuspendThread (th->h) == (DWORD) -1) | |
442 | { | |
443 | DWORD err = GetLastError (); | |
22128028 | 444 | |
17617f2d EZ |
445 | /* We get Access Denied (5) when trying to suspend |
446 | threads that Windows started on behalf of the | |
447 | debuggee, usually when those threads are just | |
5d9c55d3 JT |
448 | about to exit. |
449 | We can get Invalid Handle (6) if the main thread | |
450 | has exited. */ | |
451 | if (err != ERROR_INVALID_HANDLE | |
452 | && err != ERROR_ACCESS_DENIED) | |
17617f2d EZ |
453 | warning (_("SuspendThread (tid=0x%x) failed." |
454 | " (winerr %u)"), | |
455 | (unsigned) id, (unsigned) err); | |
456 | th->suspended = -1; | |
6537bb24 | 457 | } |
17617f2d EZ |
458 | else |
459 | th->suspended = 1; | |
6537bb24 | 460 | } |
3cee93ac | 461 | else if (get_context < 0) |
6537bb24 | 462 | th->suspended = -1; |
3ade5333 | 463 | th->reload_context = 1; |
3cee93ac CF |
464 | } |
465 | return th; | |
466 | } | |
467 | ||
468 | return NULL; | |
469 | } | |
470 | ||
c559d709 JB |
471 | /* Add a thread to the thread list. |
472 | ||
473 | PTID is the ptid of the thread to be added. | |
474 | H is its Windows handle. | |
475 | TLB is its thread local base. | |
476 | MAIN_THREAD_P should be true if the thread to be added is | |
477 | the main thread, false otherwise. */ | |
478 | ||
876d1cd7 | 479 | static windows_thread_info * |
c559d709 | 480 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb, bool main_thread_p) |
3cee93ac | 481 | { |
876d1cd7 | 482 | windows_thread_info *th; |
2dc38344 PA |
483 | DWORD id; |
484 | ||
cc6bcb54 | 485 | gdb_assert (ptid.tid () != 0); |
2dc38344 | 486 | |
cc6bcb54 | 487 | id = ptid.tid (); |
3cee93ac CF |
488 | |
489 | if ((th = thread_rec (id, FALSE))) | |
490 | return th; | |
491 | ||
876d1cd7 | 492 | th = XCNEW (windows_thread_info); |
3cee93ac CF |
493 | th->id = id; |
494 | th->h = h; | |
711e434b | 495 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
46f9f931 HD |
496 | #ifdef __x86_64__ |
497 | /* For WOW64 processes, this is actually the pointer to the 64bit TIB, | |
498 | and the 32bit TIB is exactly 2 pages after it. */ | |
499 | if (wow64_process) | |
500 | th->thread_local_base += 0x2000; | |
501 | #endif | |
3cee93ac CF |
502 | th->next = thread_head.next; |
503 | thread_head.next = th; | |
c559d709 JB |
504 | |
505 | /* Add this new thread to the list of threads. | |
506 | ||
507 | To be consistent with what's done on other platforms, we add | |
508 | the main thread silently (in reality, this thread is really | |
509 | more of a process to the user than a thread). */ | |
510 | if (main_thread_p) | |
5b6d1e4f | 511 | add_thread_silent (&the_windows_nat_target, ptid); |
c559d709 | 512 | else |
5b6d1e4f | 513 | add_thread (&the_windows_nat_target, ptid); |
c559d709 | 514 | |
2dc38344 | 515 | /* Set the debug registers for the new thread if they are used. */ |
fa4ba8da PM |
516 | if (debug_registers_used) |
517 | { | |
46f9f931 HD |
518 | #ifdef __x86_64__ |
519 | if (wow64_process) | |
520 | { | |
521 | /* Only change the value of the debug registers. */ | |
522 | th->wow64_context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
523 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
524 | th->wow64_context.Dr0 = dr[0]; | |
525 | th->wow64_context.Dr1 = dr[1]; | |
526 | th->wow64_context.Dr2 = dr[2]; | |
527 | th->wow64_context.Dr3 = dr[3]; | |
528 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
529 | th->wow64_context.Dr7 = dr[7]; | |
530 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
531 | th->wow64_context.ContextFlags = 0; | |
532 | } | |
533 | else | |
534 | #endif | |
535 | { | |
536 | /* Only change the value of the debug registers. */ | |
537 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
538 | CHECK (GetThreadContext (th->h, &th->context)); | |
539 | th->context.Dr0 = dr[0]; | |
540 | th->context.Dr1 = dr[1]; | |
541 | th->context.Dr2 = dr[2]; | |
542 | th->context.Dr3 = dr[3]; | |
543 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
544 | th->context.Dr7 = dr[7]; | |
545 | CHECK (SetThreadContext (th->h, &th->context)); | |
546 | th->context.ContextFlags = 0; | |
547 | } | |
fa4ba8da | 548 | } |
3cee93ac | 549 | return th; |
24e60978 SC |
550 | } |
551 | ||
26c4b26f | 552 | /* Clear out any old thread list and reinitialize it to a |
581e13c1 | 553 | pristine state. */ |
24e60978 | 554 | static void |
dc05df57 | 555 | windows_init_thread_list (void) |
24e60978 | 556 | { |
876d1cd7 | 557 | windows_thread_info *th = &thread_head; |
3cee93ac | 558 | |
dc05df57 | 559 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
560 | init_thread_list (); |
561 | while (th->next != NULL) | |
24e60978 | 562 | { |
876d1cd7 | 563 | windows_thread_info *here = th->next; |
3cee93ac | 564 | th->next = here->next; |
b8c9b27d | 565 | xfree (here); |
24e60978 | 566 | } |
059198c1 | 567 | thread_head.next = NULL; |
3cee93ac CF |
568 | } |
569 | ||
c559d709 JB |
570 | /* Delete a thread from the list of threads. |
571 | ||
572 | PTID is the ptid of the thread to be deleted. | |
573 | EXIT_CODE is the thread's exit code. | |
574 | MAIN_THREAD_P should be true if the thread to be deleted is | |
575 | the main thread, false otherwise. */ | |
576 | ||
3cee93ac | 577 | static void |
c559d709 | 578 | windows_delete_thread (ptid_t ptid, DWORD exit_code, bool main_thread_p) |
3cee93ac | 579 | { |
876d1cd7 | 580 | windows_thread_info *th; |
2dc38344 PA |
581 | DWORD id; |
582 | ||
cc6bcb54 | 583 | gdb_assert (ptid.tid () != 0); |
2dc38344 | 584 | |
cc6bcb54 | 585 | id = ptid.tid (); |
3cee93ac | 586 | |
c559d709 JB |
587 | /* Emit a notification about the thread being deleted. |
588 | ||
589 | Note that no notification was printed when the main thread | |
590 | was created, and thus, unless in verbose mode, we should be | |
85102364 | 591 | symmetrical, and avoid that notification for the main thread |
c559d709 JB |
592 | here as well. */ |
593 | ||
3cee93ac | 594 | if (info_verbose) |
a068643d | 595 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid).c_str ()); |
c559d709 | 596 | else if (print_thread_events && !main_thread_p) |
e0ea48a0 | 597 | printf_unfiltered (_("[%s exited with code %u]\n"), |
a068643d TT |
598 | target_pid_to_str (ptid).c_str (), |
599 | (unsigned) exit_code); | |
c559d709 | 600 | |
5b6d1e4f | 601 | delete_thread (find_thread_ptid (&the_windows_nat_target, ptid)); |
3cee93ac CF |
602 | |
603 | for (th = &thread_head; | |
604 | th->next != NULL && th->next->id != id; | |
605 | th = th->next) | |
606 | continue; | |
607 | ||
608 | if (th->next != NULL) | |
24e60978 | 609 | { |
876d1cd7 | 610 | windows_thread_info *here = th->next; |
3cee93ac | 611 | th->next = here->next; |
24cdb46e | 612 | xfree (here->name); |
b8c9b27d | 613 | xfree (here); |
24e60978 SC |
614 | } |
615 | } | |
616 | ||
9a325b7b JB |
617 | /* Fetches register number R from the given windows_thread_info, |
618 | and supplies its value to the given regcache. | |
619 | ||
620 | This function assumes that R is non-negative. A failed assertion | |
621 | is raised if that is not true. | |
622 | ||
623 | This function assumes that TH->RELOAD_CONTEXT is not set, meaning | |
624 | that the windows_thread_info has an up-to-date context. A failed | |
625 | assertion is raised if that assumption is violated. */ | |
626 | ||
3cee93ac | 627 | static void |
9a325b7b JB |
628 | windows_fetch_one_register (struct regcache *regcache, |
629 | windows_thread_info *th, int r) | |
24e60978 | 630 | { |
9a325b7b JB |
631 | gdb_assert (r >= 0); |
632 | gdb_assert (!th->reload_context); | |
633 | ||
46f9f931 HD |
634 | char *context_ptr = (char *) &th->context; |
635 | #ifdef __x86_64__ | |
636 | if (wow64_process) | |
637 | context_ptr = (char *) &th->wow64_context; | |
638 | #endif | |
639 | ||
640 | char *context_offset = context_ptr + mappings[r]; | |
ac7936df | 641 | struct gdbarch *gdbarch = regcache->arch (); |
20a6ec49 | 642 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
9a325b7b JB |
643 | |
644 | if (r == I387_FISEG_REGNUM (tdep)) | |
645 | { | |
646 | long l = *((long *) context_offset) & 0xffff; | |
647 | regcache->raw_supply (r, (char *) &l); | |
648 | } | |
649 | else if (r == I387_FOP_REGNUM (tdep)) | |
650 | { | |
651 | long l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); | |
652 | regcache->raw_supply (r, (char *) &l); | |
653 | } | |
654 | else if (segment_register_p (r)) | |
655 | { | |
656 | /* GDB treats segment registers as 32bit registers, but they are | |
657 | in fact only 16 bits long. Make sure we do not read extra | |
658 | bits from our source buffer. */ | |
659 | long l = *((long *) context_offset) & 0xffff; | |
660 | regcache->raw_supply (r, (char *) &l); | |
661 | } | |
662 | else | |
663 | regcache->raw_supply (r, context_offset); | |
664 | } | |
665 | ||
666 | void | |
667 | windows_nat_target::fetch_registers (struct regcache *regcache, int r) | |
668 | { | |
96b49c5e TT |
669 | DWORD tid = regcache->ptid ().tid (); |
670 | windows_thread_info *th = thread_rec (tid, TRUE); | |
9a325b7b JB |
671 | |
672 | /* Check if TH exists. Windows sometimes uses a non-existent | |
673 | thread id in its events. */ | |
674 | if (th == NULL) | |
675 | return; | |
6c7de422 | 676 | |
3de88e9a | 677 | if (th->reload_context) |
3ade5333 | 678 | { |
f20c58f5 | 679 | #ifdef __CYGWIN__ |
a244bdca CF |
680 | if (have_saved_context) |
681 | { | |
581e13c1 MS |
682 | /* Lie about where the program actually is stopped since |
683 | cygwin has informed us that we should consider the signal | |
684 | to have occurred at another location which is stored in | |
685 | "saved_context. */ | |
3de88e9a | 686 | memcpy (&th->context, &saved_context, |
581e13c1 | 687 | __COPY_CONTEXT_SIZE); |
a244bdca CF |
688 | have_saved_context = 0; |
689 | } | |
690 | else | |
46f9f931 HD |
691 | #endif |
692 | #ifdef __x86_64__ | |
693 | if (wow64_process) | |
694 | { | |
695 | th->wow64_context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
696 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
697 | /* Copy dr values from that thread. | |
698 | But only if there were not modified since last stop. | |
699 | PR gdb/2388 */ | |
700 | if (!debug_registers_changed) | |
701 | { | |
702 | dr[0] = th->wow64_context.Dr0; | |
703 | dr[1] = th->wow64_context.Dr1; | |
704 | dr[2] = th->wow64_context.Dr2; | |
705 | dr[3] = th->wow64_context.Dr3; | |
706 | dr[6] = th->wow64_context.Dr6; | |
707 | dr[7] = th->wow64_context.Dr7; | |
708 | } | |
709 | } | |
710 | else | |
cb832706 | 711 | #endif |
a244bdca | 712 | { |
a244bdca | 713 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 714 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 715 | /* Copy dr values from that thread. |
581e13c1 MS |
716 | But only if there were not modified since last stop. |
717 | PR gdb/2388 */ | |
88616312 PM |
718 | if (!debug_registers_changed) |
719 | { | |
720 | dr[0] = th->context.Dr0; | |
721 | dr[1] = th->context.Dr1; | |
722 | dr[2] = th->context.Dr2; | |
723 | dr[3] = th->context.Dr3; | |
724 | dr[6] = th->context.Dr6; | |
725 | dr[7] = th->context.Dr7; | |
726 | } | |
a244bdca | 727 | } |
3de88e9a | 728 | th->reload_context = 0; |
3ade5333 CF |
729 | } |
730 | ||
9a325b7b JB |
731 | if (r < 0) |
732 | for (r = 0; r < gdbarch_num_regs (regcache->arch()); r++) | |
733 | windows_fetch_one_register (regcache, th, r); | |
3cee93ac | 734 | else |
9a325b7b | 735 | windows_fetch_one_register (regcache, th, r); |
3cee93ac CF |
736 | } |
737 | ||
9a325b7b JB |
738 | /* Collect the register number R from the given regcache, and store |
739 | its value into the corresponding area of the given thread's context. | |
3de88e9a | 740 | |
9a325b7b JB |
741 | This function assumes that R is non-negative. A failed assertion |
742 | assertion is raised if that is not true. */ | |
3cee93ac CF |
743 | |
744 | static void | |
9a325b7b JB |
745 | windows_store_one_register (const struct regcache *regcache, |
746 | windows_thread_info *th, int r) | |
3cee93ac | 747 | { |
9a325b7b JB |
748 | gdb_assert (r >= 0); |
749 | ||
46f9f931 HD |
750 | char *context_ptr = (char *) &th->context; |
751 | #ifdef __x86_64__ | |
752 | if (wow64_process) | |
753 | context_ptr = (char *) &th->wow64_context; | |
754 | #endif | |
755 | ||
756 | regcache->raw_collect (r, context_ptr + mappings[r]); | |
24e60978 SC |
757 | } |
758 | ||
3de88e9a SM |
759 | /* Store a new register value into the context of the thread tied to |
760 | REGCACHE. */ | |
f6ac5f3d PA |
761 | |
762 | void | |
763 | windows_nat_target::store_registers (struct regcache *regcache, int r) | |
3cee93ac | 764 | { |
96b49c5e TT |
765 | DWORD tid = regcache->ptid ().tid (); |
766 | windows_thread_info *th = thread_rec (tid, TRUE); | |
3de88e9a SM |
767 | |
768 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 769 | thread id in its events. */ |
9a325b7b JB |
770 | if (th == NULL) |
771 | return; | |
772 | ||
773 | if (r < 0) | |
774 | for (r = 0; r < gdbarch_num_regs (regcache->arch ()); r++) | |
775 | windows_store_one_register (regcache, th, r); | |
776 | else | |
777 | windows_store_one_register (regcache, th, r); | |
3cee93ac | 778 | } |
24e60978 | 779 | |
581e13c1 | 780 | /* Maintain a linked list of "so" information. */ |
d0e449a1 | 781 | struct lm_info_windows : public lm_info_base |
02e423b9 | 782 | { |
f8fdb78e | 783 | LPVOID load_addr = 0; |
c162ed3e | 784 | CORE_ADDR text_offset = 0; |
3ee6f623 CF |
785 | }; |
786 | ||
787 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 788 | |
de1b3c3d | 789 | static struct so_list * |
dc05df57 | 790 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 791 | { |
3ee6f623 | 792 | struct so_list *so; |
d0d0ab16 CV |
793 | char *p; |
794 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
795 | char buf[__PMAX]; |
796 | char cwd[__PMAX]; | |
3f8ad85b CF |
797 | WIN32_FIND_DATA w32_fd; |
798 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 799 | |
6badb179 CF |
800 | if (h == INVALID_HANDLE_VALUE) |
801 | strcpy (buf, name); | |
802 | else | |
3f8ad85b | 803 | { |
c914e0cc CF |
804 | FindClose (h); |
805 | strcpy (buf, name); | |
806 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
807 | { | |
808 | p = strrchr (buf, '\\'); | |
809 | if (p) | |
810 | p[1] = '\0'; | |
811 | SetCurrentDirectory (buf); | |
812 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
813 | SetCurrentDirectory (cwd); | |
814 | } | |
3f8ad85b | 815 | } |
3ee6f623 CF |
816 | if (strcasecmp (buf, "ntdll.dll") == 0) |
817 | { | |
818 | GetSystemDirectory (buf, sizeof (buf)); | |
819 | strcat (buf, "\\ntdll.dll"); | |
820 | } | |
d0d0ab16 | 821 | #else |
b3c613f2 | 822 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 823 | |
b3c613f2 | 824 | buf[0] = 0; |
d0d0ab16 CV |
825 | if (access (name, F_OK) != 0) |
826 | { | |
827 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 828 | #ifdef __USEWIDE |
d0d0ab16 CV |
829 | { |
830 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
831 | wcscat (buf, L"\\ntdll.dll"); | |
832 | } | |
b3c613f2 CF |
833 | #else |
834 | { | |
835 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
836 | strcat (buf, "\\ntdll.dll"); | |
837 | } | |
838 | #endif | |
d0d0ab16 CV |
839 | } |
840 | #endif | |
41bf6aca | 841 | so = XCNEW (struct so_list); |
f8fdb78e | 842 | lm_info_windows *li = new lm_info_windows; |
d0e449a1 SM |
843 | so->lm_info = li; |
844 | li->load_addr = load_addr; | |
de1b3c3d | 845 | strcpy (so->so_original_name, name); |
10325bc5 PA |
846 | #ifndef __CYGWIN__ |
847 | strcpy (so->so_name, buf); | |
848 | #else | |
d0d0ab16 CV |
849 | if (buf[0]) |
850 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
851 | SO_NAME_MAX_PATH_SIZE); | |
852 | else | |
853 | { | |
60c5c021 | 854 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
855 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
856 | { | |
857 | strcpy (so->so_name, rname); | |
858 | free (rname); | |
859 | } | |
860 | else | |
861 | error (_("dll path too long")); | |
862 | } | |
de1b3c3d PA |
863 | /* Record cygwin1.dll .text start/end. */ |
864 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
865 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
866 | { | |
de1b3c3d | 867 | asection *text = NULL; |
8e860359 | 868 | |
192b62ce | 869 | gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386", -1)); |
a244bdca | 870 | |
192b62ce | 871 | if (abfd == NULL) |
de1b3c3d PA |
872 | return so; |
873 | ||
192b62ce TT |
874 | if (bfd_check_format (abfd.get (), bfd_object)) |
875 | text = bfd_get_section_by_name (abfd.get (), ".text"); | |
de1b3c3d PA |
876 | |
877 | if (!text) | |
192b62ce | 878 | return so; |
de1b3c3d | 879 | |
7a9dd1b2 | 880 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 881 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
882 | file header and the section alignment. */ |
883 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
884 | load_addr + 0x1000); | |
fd361982 | 885 | cygwin_load_end = cygwin_load_start + bfd_section_size (text); |
de1b3c3d | 886 | } |
10325bc5 | 887 | #endif |
de1b3c3d PA |
888 | |
889 | return so; | |
8e860359 CF |
890 | } |
891 | ||
3ee6f623 | 892 | static char * |
dfe7f3ac CF |
893 | get_image_name (HANDLE h, void *address, int unicode) |
894 | { | |
d0d0ab16 | 895 | #ifdef __CYGWIN__ |
b3c613f2 | 896 | static char buf[__PMAX]; |
d0d0ab16 | 897 | #else |
b3c613f2 | 898 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 899 | #endif |
dfe7f3ac CF |
900 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
901 | char *address_ptr; | |
902 | int len = 0; | |
903 | char b[2]; | |
5732a500 | 904 | SIZE_T done; |
dfe7f3ac CF |
905 | |
906 | /* Attempt to read the name of the dll that was detected. | |
907 | This is documented to work only when actively debugging | |
581e13c1 | 908 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
909 | if (address == NULL) |
910 | return NULL; | |
911 | ||
dfe7f3ac | 912 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
913 | address isn't null. */ |
914 | if (!ReadProcessMemory (h, address, &address_ptr, | |
915 | sizeof (address_ptr), &done) | |
6f17862b | 916 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
917 | return NULL; |
918 | ||
581e13c1 | 919 | /* Find the length of the string. */ |
6f17862b CF |
920 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
921 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
922 | continue; | |
dfe7f3ac CF |
923 | |
924 | if (!unicode) | |
925 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
926 | else | |
927 | { | |
928 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
929 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
930 | &done); | |
d0d0ab16 | 931 | #ifdef __CYGWIN__ |
b3c613f2 | 932 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
933 | #else |
934 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
935 | 0, 0); | |
936 | #endif | |
dfe7f3ac CF |
937 | } |
938 | ||
939 | return buf; | |
940 | } | |
941 | ||
1cd9feab JB |
942 | /* Handle a DLL load event, and return 1. |
943 | ||
944 | This function assumes that this event did not occur during inferior | |
945 | initialization, where their event info may be incomplete (see | |
946 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
947 | on how we handle DLL loading during that phase). */ | |
948 | ||
bf469271 PA |
949 | static void |
950 | handle_load_dll () | |
24e60978 | 951 | { |
3a4b77d8 | 952 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
1cd9feab | 953 | char *dll_name; |
24e60978 | 954 | |
94481b8c JB |
955 | /* Try getting the DLL name via the lpImageName field of the event. |
956 | Note that Microsoft documents this fields as strictly optional, | |
957 | in the sense that it might be NULL. And the first DLL event in | |
958 | particular is explicitly documented as "likely not pass[ed]" | |
959 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
960 | dll_name = get_image_name (current_process_handle, |
961 | event->lpImageName, event->fUnicode); | |
3cee93ac | 962 | if (!dll_name) |
bf469271 | 963 | return; |
3cee93ac | 964 | |
dc05df57 | 965 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 966 | solib_end = solib_end->next; |
450005e7 | 967 | |
d0e449a1 SM |
968 | lm_info_windows *li = (lm_info_windows *) solib_end->lm_info; |
969 | ||
a74ce742 | 970 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
d0e449a1 | 971 | host_address_to_string (li->load_addr))); |
450005e7 CF |
972 | } |
973 | ||
3ee6f623 | 974 | static void |
dc05df57 | 975 | windows_free_so (struct so_list *so) |
3ee6f623 | 976 | { |
f8fdb78e SM |
977 | lm_info_windows *li = (lm_info_windows *) so->lm_info; |
978 | ||
979 | delete li; | |
de1b3c3d | 980 | xfree (so); |
3cb8e7f6 CF |
981 | } |
982 | ||
3be75f87 JB |
983 | /* Handle a DLL unload event. |
984 | Return 1 if successful, or zero otherwise. | |
985 | ||
986 | This function assumes that this event did not occur during inferior | |
987 | initialization, where their event info may be incomplete (see | |
988 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
989 | on how we handle DLL loading during that phase). */ | |
990 | ||
bf469271 PA |
991 | static void |
992 | handle_unload_dll () | |
d3ff4a77 | 993 | { |
d3653bf6 | 994 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 995 | struct so_list *so; |
d3ff4a77 CF |
996 | |
997 | for (so = &solib_start; so->next != NULL; so = so->next) | |
d0e449a1 SM |
998 | { |
999 | lm_info_windows *li_next = (lm_info_windows *) so->next->lm_info; | |
a25cd31f | 1000 | |
d0e449a1 SM |
1001 | if (li_next->load_addr == lpBaseOfDll) |
1002 | { | |
1003 | struct so_list *sodel = so->next; | |
7488902c | 1004 | |
d0e449a1 SM |
1005 | so->next = sodel->next; |
1006 | if (!so->next) | |
1007 | solib_end = so; | |
1008 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); | |
1009 | ||
1010 | windows_free_so (sodel); | |
bf469271 | 1011 | return; |
d0e449a1 SM |
1012 | } |
1013 | } | |
3929abe9 | 1014 | |
ecc13e53 JB |
1015 | /* We did not find any DLL that was previously loaded at this address, |
1016 | so register a complaint. We do not report an error, because we have | |
1017 | observed that this may be happening under some circumstances. For | |
1018 | instance, running 32bit applications on x64 Windows causes us to receive | |
1019 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
1020 | events are apparently caused by the WOW layer, the interface between | |
1021 | 32bit and 64bit worlds). */ | |
b98664d3 | 1022 | complaint (_("dll starting at %s not found."), |
ecc13e53 | 1023 | host_address_to_string (lpBaseOfDll)); |
bf469271 PA |
1024 | } |
1025 | ||
1026 | /* Call FUNC wrapped in a TRY/CATCH that swallows all GDB | |
1027 | exceptions. */ | |
d3ff4a77 | 1028 | |
bf469271 PA |
1029 | static void |
1030 | catch_errors (void (*func) ()) | |
1031 | { | |
a70b8144 | 1032 | try |
bf469271 PA |
1033 | { |
1034 | func (); | |
1035 | } | |
230d2906 | 1036 | catch (const gdb_exception &ex) |
bf469271 PA |
1037 | { |
1038 | exception_print (gdb_stderr, ex); | |
1039 | } | |
d3ff4a77 CF |
1040 | } |
1041 | ||
581e13c1 | 1042 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 1043 | static void |
dc05df57 | 1044 | windows_clear_solib (void) |
450005e7 | 1045 | { |
25057eb0 HD |
1046 | struct so_list *so; |
1047 | ||
1048 | for (so = solib_start.next; so; so = solib_start.next) | |
1049 | { | |
1050 | solib_start.next = so->next; | |
1051 | windows_free_so (so); | |
1052 | } | |
1053 | ||
450005e7 | 1054 | solib_end = &solib_start; |
450005e7 | 1055 | } |
295732ea | 1056 | |
463888ab | 1057 | static void |
0b39b52e | 1058 | signal_event_command (const char *args, int from_tty) |
463888ab РИ |
1059 | { |
1060 | uintptr_t event_id = 0; | |
1061 | char *endargs = NULL; | |
1062 | ||
1063 | if (args == NULL) | |
1064 | error (_("signal-event requires an argument (integer event id)")); | |
1065 | ||
1066 | event_id = strtoumax (args, &endargs, 10); | |
1067 | ||
1068 | if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || | |
1069 | ((HANDLE) event_id == INVALID_HANDLE_VALUE)) | |
1070 | error (_("Failed to convert `%s' to event id"), args); | |
1071 | ||
1072 | SetEvent ((HANDLE) event_id); | |
1073 | CloseHandle ((HANDLE) event_id); | |
1074 | } | |
1075 | ||
3cee93ac CF |
1076 | /* Handle DEBUG_STRING output from child process. |
1077 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 1078 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
1079 | static int |
1080 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
1081 | { | |
e83e4e24 | 1082 | gdb::unique_xmalloc_ptr<char> s; |
a244bdca | 1083 | int retval = 0; |
3cee93ac CF |
1084 | |
1085 | if (!target_read_string | |
2c647436 | 1086 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
e83e4e24 TT |
1087 | &s, 1024, 0) |
1088 | || !s || !*(s.get ())) | |
a244bdca | 1089 | /* nothing to do */; |
e83e4e24 | 1090 | else if (!startswith (s.get (), _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 1091 | { |
10325bc5 | 1092 | #ifdef __CYGWIN__ |
e83e4e24 | 1093 | if (!startswith (s.get (), "cYg")) |
10325bc5 | 1094 | #endif |
040ea00b | 1095 | { |
e83e4e24 | 1096 | char *p = strchr (s.get (), '\0'); |
040ea00b | 1097 | |
e83e4e24 | 1098 | if (p > s.get () && *--p == '\n') |
040ea00b | 1099 | *p = '\0'; |
e83e4e24 | 1100 | warning (("%s"), s.get ()); |
040ea00b | 1101 | } |
3cee93ac | 1102 | } |
f20c58f5 | 1103 | #ifdef __CYGWIN__ |
d3a09475 | 1104 | else |
3cee93ac | 1105 | { |
581e13c1 MS |
1106 | /* Got a cygwin signal marker. A cygwin signal is followed by |
1107 | the signal number itself and then optionally followed by the | |
1108 | thread id and address to saved context within the DLL. If | |
1109 | these are supplied, then the given thread is assumed to have | |
1110 | issued the signal and the context from the thread is assumed | |
1111 | to be stored at the given address in the inferior. Tell gdb | |
1112 | to treat this like a real signal. */ | |
3cee93ac | 1113 | char *p; |
e83e4e24 | 1114 | int sig = strtol (s.get () + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0ae534d2 | 1115 | gdb_signal gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 1116 | |
0714f9bf SS |
1117 | ourstatus->value.sig = gotasig; |
1118 | if (gotasig) | |
a244bdca CF |
1119 | { |
1120 | LPCVOID x; | |
2c15ef43 | 1121 | SIZE_T n; |
c62fa0e2 | 1122 | |
a244bdca CF |
1123 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
1124 | retval = strtoul (p, &p, 0); | |
1125 | if (!retval) | |
ab4ee614 | 1126 | retval = current_event.dwThreadId; |
40653b35 | 1127 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 1128 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
1129 | &saved_context, |
1130 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
1131 | && n == __COPY_CONTEXT_SIZE) |
1132 | have_saved_context = 1; | |
a244bdca | 1133 | } |
3cee93ac | 1134 | } |
cb832706 | 1135 | #endif |
3cee93ac | 1136 | |
a244bdca | 1137 | return retval; |
3cee93ac | 1138 | } |
24e60978 | 1139 | |
c1748f97 PM |
1140 | static int |
1141 | display_selector (HANDLE thread, DWORD sel) | |
1142 | { | |
1143 | LDT_ENTRY info; | |
46f9f931 HD |
1144 | BOOL ret; |
1145 | #ifdef __x86_64__ | |
1146 | if (wow64_process) | |
1147 | ret = Wow64GetThreadSelectorEntry (thread, sel, &info); | |
1148 | else | |
1149 | #endif | |
1150 | ret = GetThreadSelectorEntry (thread, sel, &info); | |
1151 | if (ret) | |
c1748f97 PM |
1152 | { |
1153 | int base, limit; | |
d50a0ce2 | 1154 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 1155 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
1156 | { |
1157 | puts_filtered ("Segment not present\n"); | |
1158 | return 0; | |
1159 | } | |
c1748f97 PM |
1160 | base = (info.HighWord.Bits.BaseHi << 24) + |
1161 | (info.HighWord.Bits.BaseMid << 16) | |
1162 | + info.BaseLow; | |
1163 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
1164 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 1165 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
1166 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
1167 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 1168 | puts_filtered(" 32-bit "); |
c1748f97 | 1169 | else |
baa93fa6 | 1170 | puts_filtered(" 16-bit "); |
c1748f97 PM |
1171 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1172 | { | |
1173 | case 0: | |
baa93fa6 CF |
1174 | puts_filtered ("Data (Read-Only, Exp-up"); |
1175 | break; | |
c1748f97 | 1176 | case 1: |
baa93fa6 CF |
1177 | puts_filtered ("Data (Read/Write, Exp-up"); |
1178 | break; | |
c1748f97 | 1179 | case 2: |
baa93fa6 CF |
1180 | puts_filtered ("Unused segment ("); |
1181 | break; | |
c1748f97 | 1182 | case 3: |
baa93fa6 CF |
1183 | puts_filtered ("Data (Read/Write, Exp-down"); |
1184 | break; | |
c1748f97 | 1185 | case 4: |
baa93fa6 CF |
1186 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1187 | break; | |
c1748f97 | 1188 | case 5: |
baa93fa6 | 1189 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1190 | break; |
1191 | case 6: | |
baa93fa6 | 1192 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1193 | break; |
1194 | case 7: | |
baa93fa6 | 1195 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1196 | break; |
1197 | default: | |
e432ccf1 JT |
1198 | printf_filtered ("Unknown type 0x%lx", |
1199 | (unsigned long) info.HighWord.Bits.Type); | |
c1748f97 PM |
1200 | } |
1201 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1202 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1203 | puts_filtered (")\n"); |
1204 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1205 | puts_filtered("System selector "); | |
e432ccf1 JT |
1206 | printf_filtered ("Priviledge level = %ld. ", |
1207 | (unsigned long) info.HighWord.Bits.Dpl); | |
c1748f97 | 1208 | if (info.HighWord.Bits.Granularity) |
baa93fa6 | 1209 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1210 | else |
1211 | puts_filtered ("Byte granular.\n"); | |
1212 | return 1; | |
1213 | } | |
1214 | else | |
1215 | { | |
5572ce1f PM |
1216 | DWORD err = GetLastError (); |
1217 | if (err == ERROR_NOT_SUPPORTED) | |
1218 | printf_filtered ("Function not supported\n"); | |
1219 | else | |
d50a0ce2 | 1220 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1221 | return 0; |
1222 | } | |
1223 | } | |
1224 | ||
1225 | static void | |
5fed81ff | 1226 | display_selectors (const char * args, int from_tty) |
c1748f97 PM |
1227 | { |
1228 | if (!current_thread) | |
1229 | { | |
1230 | puts_filtered ("Impossible to display selectors now.\n"); | |
1231 | return; | |
1232 | } | |
1233 | if (!args) | |
1234 | { | |
46f9f931 HD |
1235 | #ifdef __x86_64__ |
1236 | if (wow64_process) | |
1237 | { | |
1238 | puts_filtered ("Selector $cs\n"); | |
1239 | display_selector (current_thread->h, | |
1240 | current_thread->wow64_context.SegCs); | |
1241 | puts_filtered ("Selector $ds\n"); | |
1242 | display_selector (current_thread->h, | |
1243 | current_thread->wow64_context.SegDs); | |
1244 | puts_filtered ("Selector $es\n"); | |
1245 | display_selector (current_thread->h, | |
1246 | current_thread->wow64_context.SegEs); | |
1247 | puts_filtered ("Selector $ss\n"); | |
1248 | display_selector (current_thread->h, | |
1249 | current_thread->wow64_context.SegSs); | |
1250 | puts_filtered ("Selector $fs\n"); | |
1251 | display_selector (current_thread->h, | |
1252 | current_thread->wow64_context.SegFs); | |
1253 | puts_filtered ("Selector $gs\n"); | |
1254 | display_selector (current_thread->h, | |
1255 | current_thread->wow64_context.SegGs); | |
1256 | } | |
1257 | else | |
1258 | #endif | |
1259 | { | |
1260 | puts_filtered ("Selector $cs\n"); | |
1261 | display_selector (current_thread->h, | |
1262 | current_thread->context.SegCs); | |
1263 | puts_filtered ("Selector $ds\n"); | |
1264 | display_selector (current_thread->h, | |
1265 | current_thread->context.SegDs); | |
1266 | puts_filtered ("Selector $es\n"); | |
1267 | display_selector (current_thread->h, | |
1268 | current_thread->context.SegEs); | |
1269 | puts_filtered ("Selector $ss\n"); | |
1270 | display_selector (current_thread->h, | |
1271 | current_thread->context.SegSs); | |
1272 | puts_filtered ("Selector $fs\n"); | |
1273 | display_selector (current_thread->h, | |
1274 | current_thread->context.SegFs); | |
1275 | puts_filtered ("Selector $gs\n"); | |
1276 | display_selector (current_thread->h, | |
1277 | current_thread->context.SegGs); | |
1278 | } | |
c1748f97 PM |
1279 | } |
1280 | else | |
1281 | { | |
1282 | int sel; | |
1283 | sel = parse_and_eval_long (args); | |
1284 | printf_filtered ("Selector \"%s\"\n",args); | |
1285 | display_selector (current_thread->h, sel); | |
1286 | } | |
1287 | } | |
1288 | ||
7393af7c | 1289 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1290 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1291 | host_address_to_string (\ | |
1292 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1293 | |
24cdb46e | 1294 | static handle_exception_result |
450005e7 | 1295 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1296 | { |
24cdb46e РИ |
1297 | EXCEPTION_RECORD *rec = ¤t_event.u.Exception.ExceptionRecord; |
1298 | DWORD code = rec->ExceptionCode; | |
1299 | handle_exception_result result = HANDLE_EXCEPTION_HANDLED; | |
3cee93ac | 1300 | |
7928d571 HD |
1301 | memcpy (&siginfo_er, rec, sizeof siginfo_er); |
1302 | ||
29fe111d | 1303 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1304 | |
581e13c1 | 1305 | /* Record the context of the current thread. */ |
c25b7cce | 1306 | thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1307 | |
29fe111d | 1308 | switch (code) |
24e60978 | 1309 | { |
1ef980b9 | 1310 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c | 1311 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
a493e3e2 | 1312 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
10325bc5 | 1313 | #ifdef __CYGWIN__ |
8da8e0b3 | 1314 | { |
581e13c1 MS |
1315 | /* See if the access violation happened within the cygwin DLL |
1316 | itself. Cygwin uses a kind of exception handling to deal | |
1317 | with passed-in invalid addresses. gdb should not treat | |
1318 | these as real SEGVs since they will be silently handled by | |
1319 | cygwin. A real SEGV will (theoretically) be caught by | |
1320 | cygwin later in the process and will be sent as a | |
1321 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1322 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1323 | const char *fn; |
24cdb46e | 1324 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) rec->ExceptionAddress; |
581e13c1 MS |
1325 | |
1326 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1327 | && addr < cygwin_load_end)) | |
a244bdca | 1328 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
61012eef | 1329 | && startswith (fn, "KERNEL32!IsBad"))) |
24cdb46e | 1330 | return HANDLE_EXCEPTION_UNHANDLED; |
8da8e0b3 | 1331 | } |
10325bc5 | 1332 | #endif |
7393af7c PM |
1333 | break; |
1334 | case STATUS_STACK_OVERFLOW: | |
1335 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
a493e3e2 | 1336 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
7393af7c PM |
1337 | break; |
1338 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1339 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
a493e3e2 | 1340 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1341 | break; |
1342 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1343 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
a493e3e2 | 1344 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1345 | break; |
1346 | case STATUS_FLOAT_INEXACT_RESULT: | |
1347 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
a493e3e2 | 1348 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1349 | break; |
1350 | case STATUS_FLOAT_INVALID_OPERATION: | |
1351 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
a493e3e2 | 1352 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1353 | break; |
1354 | case STATUS_FLOAT_OVERFLOW: | |
1355 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
a493e3e2 | 1356 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1357 | break; |
1358 | case STATUS_FLOAT_STACK_CHECK: | |
1359 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
a493e3e2 | 1360 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 | 1361 | break; |
3b7c8b74 | 1362 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c | 1363 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
a493e3e2 | 1364 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1365 | break; |
3b7c8b74 | 1366 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c | 1367 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
a493e3e2 | 1368 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1369 | break; |
3b7c8b74 | 1370 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1371 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
a493e3e2 | 1372 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
3b7c8b74 | 1373 | break; |
7393af7c PM |
1374 | case STATUS_INTEGER_OVERFLOW: |
1375 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
a493e3e2 | 1376 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 SC |
1377 | break; |
1378 | case EXCEPTION_BREAKPOINT: | |
46f9f931 HD |
1379 | #ifdef __x86_64__ |
1380 | if (ignore_first_breakpoint) | |
1381 | { | |
1382 | /* For WOW64 processes, there are always 2 breakpoint exceptions | |
1383 | on startup, first a BREAKPOINT for the 64bit ntdll.dll, | |
1384 | then a WX86_BREAKPOINT for the 32bit ntdll.dll. | |
1385 | Here we only care about the WX86_BREAKPOINT's. */ | |
1386 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1387 | ignore_first_breakpoint = false; | |
1388 | } | |
1389 | #endif | |
1390 | /* FALLTHROUGH */ | |
1391 | case STATUS_WX86_BREAKPOINT: | |
7393af7c | 1392 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
a493e3e2 | 1393 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 SC |
1394 | break; |
1395 | case DBG_CONTROL_C: | |
7393af7c | 1396 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
a493e3e2 | 1397 | ourstatus->value.sig = GDB_SIGNAL_INT; |
5b421780 PM |
1398 | break; |
1399 | case DBG_CONTROL_BREAK: | |
7393af7c | 1400 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
a493e3e2 | 1401 | ourstatus->value.sig = GDB_SIGNAL_INT; |
1ef980b9 SC |
1402 | break; |
1403 | case EXCEPTION_SINGLE_STEP: | |
46f9f931 | 1404 | case STATUS_WX86_SINGLE_STEP: |
7393af7c | 1405 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
a493e3e2 | 1406 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 | 1407 | break; |
8227c82d | 1408 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c | 1409 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
a493e3e2 | 1410 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1411 | break; |
1412 | case EXCEPTION_PRIV_INSTRUCTION: | |
1413 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
a493e3e2 | 1414 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1415 | break; |
1416 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1417 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
a493e3e2 | 1418 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
8227c82d | 1419 | break; |
24cdb46e РИ |
1420 | case MS_VC_EXCEPTION: |
1421 | if (rec->NumberParameters >= 3 | |
1422 | && (rec->ExceptionInformation[0] & 0xffffffff) == 0x1000) | |
1423 | { | |
1424 | DWORD named_thread_id; | |
1425 | windows_thread_info *named_thread; | |
1426 | CORE_ADDR thread_name_target; | |
1427 | ||
1428 | DEBUG_EXCEPTION_SIMPLE ("MS_VC_EXCEPTION"); | |
1429 | ||
1430 | thread_name_target = rec->ExceptionInformation[1]; | |
1431 | named_thread_id = (DWORD) (0xffffffff & rec->ExceptionInformation[2]); | |
1432 | ||
1433 | if (named_thread_id == (DWORD) -1) | |
1434 | named_thread_id = current_event.dwThreadId; | |
1435 | ||
1436 | named_thread = thread_rec (named_thread_id, 0); | |
1437 | if (named_thread != NULL) | |
1438 | { | |
1439 | int thread_name_len; | |
e83e4e24 | 1440 | gdb::unique_xmalloc_ptr<char> thread_name; |
24cdb46e РИ |
1441 | |
1442 | thread_name_len = target_read_string (thread_name_target, | |
1443 | &thread_name, 1025, NULL); | |
1444 | if (thread_name_len > 0) | |
1445 | { | |
e83e4e24 | 1446 | thread_name.get ()[thread_name_len - 1] = '\0'; |
24cdb46e | 1447 | xfree (named_thread->name); |
e83e4e24 | 1448 | named_thread->name = thread_name.release (); |
24cdb46e | 1449 | } |
24cdb46e РИ |
1450 | } |
1451 | ourstatus->value.sig = GDB_SIGNAL_TRAP; | |
1452 | result = HANDLE_EXCEPTION_IGNORED; | |
1453 | break; | |
1454 | } | |
e7ec8713 TT |
1455 | /* treat improperly formed exception as unknown */ |
1456 | /* FALLTHROUGH */ | |
1ef980b9 | 1457 | default: |
581e13c1 | 1458 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1459 | if (current_event.u.Exception.dwFirstChance) |
24cdb46e | 1460 | return HANDLE_EXCEPTION_UNHANDLED; |
d50a0ce2 CV |
1461 | printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n", |
1462 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
a74ce742 PM |
1463 | host_address_to_string ( |
1464 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
a493e3e2 | 1465 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
1ef980b9 | 1466 | break; |
24e60978 | 1467 | } |
24e60978 | 1468 | exception_count++; |
7393af7c | 1469 | last_sig = ourstatus->value.sig; |
24cdb46e | 1470 | return result; |
24e60978 SC |
1471 | } |
1472 | ||
17617f2d EZ |
1473 | /* Resume thread specified by ID, or all artificially suspended |
1474 | threads, if we are continuing execution. KILLED non-zero means we | |
1475 | have killed the inferior, so we should ignore weird errors due to | |
1476 | threads shutting down. */ | |
3cee93ac | 1477 | static BOOL |
17617f2d | 1478 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac | 1479 | { |
876d1cd7 | 1480 | windows_thread_info *th; |
3cee93ac CF |
1481 | BOOL res; |
1482 | ||
0c3d84be | 1483 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n", |
d50a0ce2 CV |
1484 | (unsigned) current_event.dwProcessId, |
1485 | (unsigned) current_event.dwThreadId, | |
dfe7f3ac | 1486 | continue_status == DBG_CONTINUE ? |
7393af7c | 1487 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1488 | |
1489 | for (th = &thread_head; (th = th->next) != NULL;) | |
1490 | if ((id == -1 || id == (int) th->id) | |
1491 | && th->suspended) | |
1492 | { | |
46f9f931 HD |
1493 | #ifdef __x86_64__ |
1494 | if (wow64_process) | |
6537bb24 | 1495 | { |
46f9f931 HD |
1496 | if (debug_registers_changed) |
1497 | { | |
1498 | th->wow64_context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1499 | th->wow64_context.Dr0 = dr[0]; | |
1500 | th->wow64_context.Dr1 = dr[1]; | |
1501 | th->wow64_context.Dr2 = dr[2]; | |
1502 | th->wow64_context.Dr3 = dr[3]; | |
1503 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1504 | th->wow64_context.Dr7 = dr[7]; | |
1505 | } | |
1506 | if (th->wow64_context.ContextFlags) | |
1507 | { | |
1508 | DWORD ec = 0; | |
1509 | ||
1510 | if (GetExitCodeThread (th->h, &ec) | |
1511 | && ec == STILL_ACTIVE) | |
1512 | { | |
1513 | BOOL status = Wow64SetThreadContext (th->h, | |
1514 | &th->wow64_context); | |
1515 | ||
1516 | if (!killed) | |
1517 | CHECK (status); | |
1518 | } | |
1519 | th->wow64_context.ContextFlags = 0; | |
1520 | } | |
6537bb24 | 1521 | } |
46f9f931 HD |
1522 | else |
1523 | #endif | |
6537bb24 | 1524 | { |
46f9f931 | 1525 | if (debug_registers_changed) |
17617f2d | 1526 | { |
46f9f931 HD |
1527 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; |
1528 | th->context.Dr0 = dr[0]; | |
1529 | th->context.Dr1 = dr[1]; | |
1530 | th->context.Dr2 = dr[2]; | |
1531 | th->context.Dr3 = dr[3]; | |
1532 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1533 | th->context.Dr7 = dr[7]; | |
1534 | } | |
1535 | if (th->context.ContextFlags) | |
1536 | { | |
1537 | DWORD ec = 0; | |
1538 | ||
1539 | if (GetExitCodeThread (th->h, &ec) | |
1540 | && ec == STILL_ACTIVE) | |
1541 | { | |
1542 | BOOL status = SetThreadContext (th->h, &th->context); | |
17617f2d | 1543 | |
46f9f931 HD |
1544 | if (!killed) |
1545 | CHECK (status); | |
1546 | } | |
1547 | th->context.ContextFlags = 0; | |
17617f2d | 1548 | } |
6537bb24 PA |
1549 | } |
1550 | if (th->suspended > 0) | |
1551 | (void) ResumeThread (th->h); | |
1552 | th->suspended = 0; | |
1553 | } | |
1554 | ||
0714f9bf SS |
1555 | res = ContinueDebugEvent (current_event.dwProcessId, |
1556 | current_event.dwThreadId, | |
1557 | continue_status); | |
3cee93ac | 1558 | |
68ffc902 JT |
1559 | if (!res) |
1560 | error (_("Failed to resume program execution" | |
1561 | " (ContinueDebugEvent failed, error %u)"), | |
1562 | (unsigned int) GetLastError ()); | |
1563 | ||
fa4ba8da | 1564 | debug_registers_changed = 0; |
3cee93ac CF |
1565 | return res; |
1566 | } | |
1567 | ||
d6dc8049 CF |
1568 | /* Called in pathological case where Windows fails to send a |
1569 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1570 | static DWORD |
5439edaa | 1571 | fake_create_process (void) |
3ade5333 CF |
1572 | { |
1573 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1574 | current_event.dwProcessId); | |
bf25528d CF |
1575 | if (current_process_handle != NULL) |
1576 | open_process_used = 1; | |
1577 | else | |
1578 | { | |
d50a0ce2 CV |
1579 | error (_("OpenProcess call failed, GetLastError = %u"), |
1580 | (unsigned) GetLastError ()); | |
bf25528d CF |
1581 | /* We can not debug anything in that case. */ |
1582 | } | |
c559d709 JB |
1583 | current_thread |
1584 | = windows_add_thread (ptid_t (current_event.dwProcessId, 0, | |
1585 | current_event.dwThreadId), | |
1586 | current_event.u.CreateThread.hThread, | |
1587 | current_event.u.CreateThread.lpThreadLocalBase, | |
1588 | true /* main_thread_p */); | |
ab4ee614 | 1589 | return current_event.dwThreadId; |
3ade5333 CF |
1590 | } |
1591 | ||
f6ac5f3d PA |
1592 | void |
1593 | windows_nat_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
a244bdca | 1594 | { |
876d1cd7 | 1595 | windows_thread_info *th; |
a244bdca CF |
1596 | DWORD continue_status = DBG_CONTINUE; |
1597 | ||
2dc38344 | 1598 | /* A specific PTID means `step only this thread id'. */ |
d7e15655 | 1599 | int resume_all = ptid == minus_one_ptid; |
2dc38344 PA |
1600 | |
1601 | /* If we're continuing all threads, it's the current inferior that | |
1602 | should be handled specially. */ | |
1603 | if (resume_all) | |
1604 | ptid = inferior_ptid; | |
a244bdca | 1605 | |
a493e3e2 | 1606 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1607 | { |
1608 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1609 | { | |
1610 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1611 | } | |
1612 | else if (sig == last_sig) | |
1613 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1614 | else | |
1615 | #if 0 | |
1616 | /* This code does not seem to work, because | |
1617 | the kernel does probably not consider changes in the ExceptionRecord | |
1618 | structure when passing the exception to the inferior. | |
1619 | Note that this seems possible in the exception handler itself. */ | |
1620 | { | |
73c13fe6 TT |
1621 | for (const xlate_exception &x : xlate) |
1622 | if (x.us == sig) | |
a244bdca | 1623 | { |
581e13c1 | 1624 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
73c13fe6 | 1625 | = x.them; |
a244bdca CF |
1626 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1627 | break; | |
1628 | } | |
1629 | if (continue_status == DBG_CONTINUE) | |
1630 | { | |
1631 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1632 | } | |
1633 | } | |
1634 | #endif | |
23942819 | 1635 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1636 | last_sig)); |
1637 | } | |
1638 | ||
a493e3e2 | 1639 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1640 | |
55dfc88f TT |
1641 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=0x%x, step=%d, sig=%d);\n", |
1642 | ptid.pid (), (unsigned) ptid.tid (), step, sig)); | |
a244bdca | 1643 | |
581e13c1 | 1644 | /* Get context for currently selected thread. */ |
cc6bcb54 | 1645 | th = thread_rec (inferior_ptid.tid (), FALSE); |
a244bdca CF |
1646 | if (th) |
1647 | { | |
46f9f931 HD |
1648 | #ifdef __x86_64__ |
1649 | if (wow64_process) | |
a244bdca | 1650 | { |
46f9f931 HD |
1651 | if (step) |
1652 | { | |
1653 | /* Single step by setting t bit. */ | |
1654 | struct regcache *regcache = get_current_regcache (); | |
1655 | struct gdbarch *gdbarch = regcache->arch (); | |
1656 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1657 | th->wow64_context.EFlags |= FLAG_TRACE_BIT; | |
1658 | } | |
a244bdca | 1659 | |
46f9f931 HD |
1660 | if (th->wow64_context.ContextFlags) |
1661 | { | |
1662 | if (debug_registers_changed) | |
1663 | { | |
1664 | th->wow64_context.Dr0 = dr[0]; | |
1665 | th->wow64_context.Dr1 = dr[1]; | |
1666 | th->wow64_context.Dr2 = dr[2]; | |
1667 | th->wow64_context.Dr3 = dr[3]; | |
1668 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1669 | th->wow64_context.Dr7 = dr[7]; | |
1670 | } | |
1671 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
1672 | th->wow64_context.ContextFlags = 0; | |
1673 | } | |
1674 | } | |
1675 | else | |
1676 | #endif | |
a244bdca | 1677 | { |
46f9f931 | 1678 | if (step) |
a244bdca | 1679 | { |
46f9f931 HD |
1680 | /* Single step by setting t bit. */ |
1681 | struct regcache *regcache = get_current_regcache (); | |
1682 | struct gdbarch *gdbarch = regcache->arch (); | |
1683 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1684 | th->context.EFlags |= FLAG_TRACE_BIT; | |
1685 | } | |
1686 | ||
1687 | if (th->context.ContextFlags) | |
1688 | { | |
1689 | if (debug_registers_changed) | |
1690 | { | |
1691 | th->context.Dr0 = dr[0]; | |
1692 | th->context.Dr1 = dr[1]; | |
1693 | th->context.Dr2 = dr[2]; | |
1694 | th->context.Dr3 = dr[3]; | |
1695 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1696 | th->context.Dr7 = dr[7]; | |
1697 | } | |
1698 | CHECK (SetThreadContext (th->h, &th->context)); | |
1699 | th->context.ContextFlags = 0; | |
a244bdca | 1700 | } |
a244bdca CF |
1701 | } |
1702 | } | |
1703 | ||
1704 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1705 | Otherwise complain. */ |
a244bdca | 1706 | |
2dc38344 | 1707 | if (resume_all) |
17617f2d | 1708 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1709 | else |
cc6bcb54 | 1710 | windows_continue (continue_status, ptid.tid (), 0); |
a244bdca CF |
1711 | } |
1712 | ||
695de547 CF |
1713 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1714 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1715 | Note that this function is not available prior to Windows XP. In this case | |
1716 | we emit a warning. */ | |
d603d4b3 | 1717 | static BOOL WINAPI |
695de547 CF |
1718 | ctrl_c_handler (DWORD event_type) |
1719 | { | |
1720 | const int attach_flag = current_inferior ()->attach_flag; | |
1721 | ||
bb0613a5 PM |
1722 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1723 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1724 | return FALSE; |
1725 | ||
1726 | /* If the inferior and the debugger share the same console, do nothing as | |
1727 | the inferior has also received the Ctrl-C event. */ | |
1728 | if (!new_console && !attach_flag) | |
1729 | return TRUE; | |
1730 | ||
1731 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1732 | warning (_("Could not interrupt program. " |
1733 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1734 | |
1735 | /* Return true to tell that Ctrl-C has been handled. */ | |
1736 | return TRUE; | |
1737 | } | |
1738 | ||
e6ad66bd JT |
1739 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1740 | requires handling by WFI (or whatever). */ | |
5b6d1e4f PA |
1741 | |
1742 | int | |
1743 | windows_nat_target::get_windows_debug_event (int pid, | |
1744 | struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1745 | { |
1746 | BOOL debug_event; | |
8a892701 | 1747 | DWORD continue_status, event_code; |
876d1cd7 YZ |
1748 | windows_thread_info *th; |
1749 | static windows_thread_info dummy_thread_info; | |
e6ad66bd | 1750 | DWORD thread_id = 0; |
1e37c281 | 1751 | |
a493e3e2 | 1752 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1753 | |
8a892701 | 1754 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1755 | goto out; |
1e37c281 JM |
1756 | |
1757 | event_count++; | |
1758 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1759 | |
8a892701 | 1760 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1761 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1762 | th = NULL; |
a244bdca | 1763 | have_saved_context = 0; |
8a892701 CF |
1764 | |
1765 | switch (event_code) | |
1e37c281 JM |
1766 | { |
1767 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1768 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1769 | (unsigned) current_event.dwProcessId, |
1770 | (unsigned) current_event.dwThreadId, | |
1771 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1772 | if (saw_create != 1) |
3ade5333 | 1773 | { |
5b6d1e4f | 1774 | inferior *inf = find_inferior_pid (this, current_event.dwProcessId); |
181e7f93 | 1775 | if (!saw_create && inf->attach_flag) |
3ade5333 | 1776 | { |
d6dc8049 CF |
1777 | /* Kludge around a Windows bug where first event is a create |
1778 | thread event. Caused when attached process does not have | |
581e13c1 | 1779 | a main thread. */ |
e6ad66bd JT |
1780 | thread_id = fake_create_process (); |
1781 | if (thread_id) | |
181e7f93 | 1782 | saw_create++; |
3ade5333 CF |
1783 | } |
1784 | break; | |
1785 | } | |
581e13c1 | 1786 | /* Record the existence of this thread. */ |
e6ad66bd | 1787 | thread_id = current_event.dwThreadId; |
c559d709 JB |
1788 | th = windows_add_thread |
1789 | (ptid_t (current_event.dwProcessId, 0, current_event.dwThreadId), | |
1790 | current_event.u.CreateThread.hThread, | |
1791 | current_event.u.CreateThread.lpThreadLocalBase, | |
1792 | false /* main_thread_p */); | |
711e434b | 1793 | |
1e37c281 JM |
1794 | break; |
1795 | ||
1796 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1797 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1798 | (unsigned) current_event.dwProcessId, |
1799 | (unsigned) current_event.dwThreadId, | |
1800 | "EXIT_THREAD_DEBUG_EVENT")); | |
2eab46b1 JB |
1801 | windows_delete_thread (ptid_t (current_event.dwProcessId, 0, |
1802 | current_event.dwThreadId), | |
c559d709 JB |
1803 | current_event.u.ExitThread.dwExitCode, |
1804 | false /* main_thread_p */); | |
2eab46b1 | 1805 | th = &dummy_thread_info; |
1e37c281 JM |
1806 | break; |
1807 | ||
1808 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1809 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1810 | (unsigned) current_event.dwProcessId, |
1811 | (unsigned) current_event.dwThreadId, | |
1812 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1813 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1814 | if (++saw_create != 1) |
bf25528d | 1815 | break; |
1e37c281 | 1816 | |
dfe7f3ac | 1817 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
581e13c1 | 1818 | /* Add the main thread. */ |
c559d709 JB |
1819 | th = windows_add_thread |
1820 | (ptid_t (current_event.dwProcessId, 0, | |
1821 | current_event.dwThreadId), | |
1822 | current_event.u.CreateProcessInfo.hThread, | |
1823 | current_event.u.CreateProcessInfo.lpThreadLocalBase, | |
1824 | true /* main_thread_p */); | |
e6ad66bd | 1825 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1826 | break; |
1827 | ||
1828 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1829 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1830 | (unsigned) current_event.dwProcessId, |
1831 | (unsigned) current_event.dwThreadId, | |
1832 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1833 | if (!windows_initialization_done) |
1834 | { | |
223ffa71 | 1835 | target_terminal::ours (); |
bc1e6c81 | 1836 | target_mourn_inferior (inferior_ptid); |
16d905e2 CF |
1837 | error (_("During startup program exited with code 0x%x."), |
1838 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1839 | } | |
1840 | else if (saw_create == 1) | |
1841 | { | |
2eab46b1 | 1842 | windows_delete_thread (ptid_t (current_event.dwProcessId, 0, |
8ed5b76e | 1843 | current_event.dwThreadId), |
c559d709 | 1844 | 0, true /* main_thread_p */); |
559e7e50 EZ |
1845 | DWORD exit_status = current_event.u.ExitProcess.dwExitCode; |
1846 | /* If the exit status looks like a fatal exception, but we | |
1847 | don't recognize the exception's code, make the original | |
1848 | exit status value available, to avoid losing | |
1849 | information. */ | |
1850 | int exit_signal | |
1851 | = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1; | |
1852 | if (exit_signal == -1) | |
1853 | { | |
1854 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1855 | ourstatus->value.integer = exit_status; | |
1856 | } | |
1857 | else | |
1858 | { | |
1859 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1860 | ourstatus->value.sig = gdb_signal_from_host (exit_signal); | |
1861 | } | |
8ed5b76e | 1862 | thread_id = current_event.dwThreadId; |
16d905e2 | 1863 | } |
8a892701 | 1864 | break; |
1e37c281 JM |
1865 | |
1866 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1867 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1868 | (unsigned) current_event.dwProcessId, |
1869 | (unsigned) current_event.dwThreadId, | |
1870 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1871 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1872 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1873 | break; |
bf469271 | 1874 | catch_errors (handle_load_dll); |
450005e7 CF |
1875 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1876 | ourstatus->value.integer = 0; | |
ab4ee614 | 1877 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1878 | break; |
1879 | ||
1880 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1881 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1882 | (unsigned) current_event.dwProcessId, |
1883 | (unsigned) current_event.dwThreadId, | |
1884 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1885 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1886 | break; |
bf469271 | 1887 | catch_errors (handle_unload_dll); |
de1b3c3d PA |
1888 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1889 | ourstatus->value.integer = 0; | |
ab4ee614 | 1890 | thread_id = current_event.dwThreadId; |
d3ff4a77 | 1891 | break; |
1e37c281 JM |
1892 | |
1893 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1894 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1895 | (unsigned) current_event.dwProcessId, |
1896 | (unsigned) current_event.dwThreadId, | |
1897 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1898 | if (saw_create != 1) |
1899 | break; | |
24cdb46e РИ |
1900 | switch (handle_exception (ourstatus)) |
1901 | { | |
1902 | case HANDLE_EXCEPTION_UNHANDLED: | |
1903 | default: | |
1904 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1905 | break; | |
1906 | case HANDLE_EXCEPTION_HANDLED: | |
1907 | thread_id = current_event.dwThreadId; | |
1908 | break; | |
1909 | case HANDLE_EXCEPTION_IGNORED: | |
1910 | continue_status = DBG_CONTINUE; | |
1911 | break; | |
1912 | } | |
1e37c281 JM |
1913 | break; |
1914 | ||
581e13c1 | 1915 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1916 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1917 | (unsigned) current_event.dwProcessId, |
1918 | (unsigned) current_event.dwThreadId, | |
1919 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1920 | if (saw_create != 1) |
1921 | break; | |
e6ad66bd | 1922 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1923 | break; |
9d3789f7 | 1924 | |
1e37c281 | 1925 | default: |
dfe7f3ac CF |
1926 | if (saw_create != 1) |
1927 | break; | |
0c3d84be | 1928 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1929 | (unsigned) current_event.dwProcessId, |
1930 | (unsigned) current_event.dwThreadId); | |
1931 | printf_unfiltered (" unknown event code %u\n", | |
1932 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1933 | break; |
1934 | } | |
1935 | ||
e6ad66bd | 1936 | if (!thread_id || saw_create != 1) |
a244bdca | 1937 | { |
95824559 | 1938 | CHECK (windows_continue (continue_status, -1, 0)); |
a244bdca | 1939 | } |
450005e7 | 1940 | else |
9d3789f7 | 1941 | { |
fd79271b | 1942 | inferior_ptid = ptid_t (current_event.dwProcessId, 0, thread_id); |
776704b9 JT |
1943 | current_thread = th; |
1944 | if (!current_thread) | |
f16eab5f | 1945 | current_thread = thread_rec (thread_id, TRUE); |
9d3789f7 | 1946 | } |
1e37c281 JM |
1947 | |
1948 | out: | |
e6ad66bd | 1949 | return thread_id; |
1e37c281 JM |
1950 | } |
1951 | ||
2dc38344 | 1952 | /* Wait for interesting events to occur in the target process. */ |
f6ac5f3d PA |
1953 | ptid_t |
1954 | windows_nat_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus, | |
1955 | int options) | |
24e60978 | 1956 | { |
2dc38344 | 1957 | int pid = -1; |
39f77062 | 1958 | |
24e60978 SC |
1959 | /* We loop when we get a non-standard exception rather than return |
1960 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1961 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1962 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1963 | isn't necessarily what you think it is. */ |
24e60978 SC |
1964 | |
1965 | while (1) | |
450005e7 | 1966 | { |
c57918b2 | 1967 | int retval; |
2b008701 | 1968 | |
695de547 CF |
1969 | /* If the user presses Ctrl-c while the debugger is waiting |
1970 | for an event, he expects the debugger to interrupt his program | |
1971 | and to get the prompt back. There are two possible situations: | |
1972 | ||
1973 | - The debugger and the program do not share the console, in | |
1974 | which case the Ctrl-c event only reached the debugger. | |
1975 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1976 | the inferior. Note that this case is working starting with |
1977 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1978 | inferior console. |
1979 | ||
1980 | - The debugger and the program share the same console, in which | |
1981 | case both debugger and inferior will receive the Ctrl-c event. | |
1982 | In that case the ctrl_c handler will ignore the event, as the | |
1983 | Ctrl-c event generated inside the inferior will trigger the | |
1984 | expected debug event. | |
1985 | ||
1986 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1987 | signal first and the delay until GDB receives that signal | |
1988 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1989 | after we have unblocked the CTRL+C handler. This would | |
1990 | lead to the debugger stopping prematurely while handling | |
1991 | the new-thread event that comes with the handling of the SIGINT | |
1992 | inside the inferior, and then stop again immediately when | |
1993 | the user tries to resume the execution in the inferior. | |
1994 | This is a classic race that we should try to fix one day. */ | |
1995 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
5b6d1e4f | 1996 | retval = get_windows_debug_event (pid, ourstatus); |
695de547 | 1997 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1998 | |
450005e7 | 1999 | if (retval) |
fd79271b | 2000 | return ptid_t (current_event.dwProcessId, 0, retval); |
450005e7 CF |
2001 | else |
2002 | { | |
2003 | int detach = 0; | |
3cee93ac | 2004 | |
98bbd631 AC |
2005 | if (deprecated_ui_loop_hook != NULL) |
2006 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 2007 | |
450005e7 | 2008 | if (detach) |
f6ac5f3d | 2009 | kill (); |
450005e7 CF |
2010 | } |
2011 | } | |
24e60978 SC |
2012 | } |
2013 | ||
ea39ad35 JB |
2014 | /* Iterate over all DLLs currently mapped by our inferior, and |
2015 | add them to our list of solibs. */ | |
94481b8c JB |
2016 | |
2017 | static void | |
ea39ad35 | 2018 | windows_add_all_dlls (void) |
94481b8c | 2019 | { |
94481b8c JB |
2020 | HMODULE dummy_hmodule; |
2021 | DWORD cb_needed; | |
2022 | HMODULE *hmodules; | |
2023 | int i; | |
2024 | ||
46f9f931 HD |
2025 | #ifdef __x86_64__ |
2026 | if (wow64_process) | |
2027 | { | |
2028 | if (EnumProcessModulesEx (current_process_handle, &dummy_hmodule, | |
2029 | sizeof (HMODULE), &cb_needed, | |
2030 | LIST_MODULES_32BIT) == 0) | |
2031 | return; | |
2032 | } | |
2033 | else | |
2034 | #endif | |
2035 | { | |
2036 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, | |
2037 | sizeof (HMODULE), &cb_needed) == 0) | |
2038 | return; | |
2039 | } | |
94481b8c JB |
2040 | |
2041 | if (cb_needed < 1) | |
2042 | return; | |
2043 | ||
2044 | hmodules = (HMODULE *) alloca (cb_needed); | |
46f9f931 HD |
2045 | #ifdef __x86_64__ |
2046 | if (wow64_process) | |
2047 | { | |
2048 | if (EnumProcessModulesEx (current_process_handle, hmodules, | |
2049 | cb_needed, &cb_needed, | |
2050 | LIST_MODULES_32BIT) == 0) | |
2051 | return; | |
2052 | } | |
2053 | else | |
2054 | #endif | |
2055 | { | |
2056 | if (EnumProcessModules (current_process_handle, hmodules, | |
2057 | cb_needed, &cb_needed) == 0) | |
2058 | return; | |
2059 | } | |
94481b8c | 2060 | |
ea39ad35 | 2061 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
2062 | { |
2063 | MODULEINFO mi; | |
774f74c2 PM |
2064 | #ifdef __USEWIDE |
2065 | wchar_t dll_name[__PMAX]; | |
2066 | char name[__PMAX]; | |
2067 | #else | |
94481b8c | 2068 | char dll_name[__PMAX]; |
774f74c2 PM |
2069 | char *name; |
2070 | #endif | |
94481b8c JB |
2071 | if (GetModuleInformation (current_process_handle, hmodules[i], |
2072 | &mi, sizeof (mi)) == 0) | |
2073 | continue; | |
2074 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
2075 | dll_name, sizeof (dll_name)) == 0) | |
2076 | continue; | |
774f74c2 PM |
2077 | #ifdef __USEWIDE |
2078 | wcstombs (name, dll_name, __PMAX); | |
2079 | #else | |
2080 | name = dll_name; | |
2081 | #endif | |
ea39ad35 JB |
2082 | |
2083 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
2084 | solib_end = solib_end->next; | |
94481b8c JB |
2085 | } |
2086 | } | |
2087 | ||
9d3789f7 | 2088 | static void |
dc05df57 | 2089 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 | 2090 | { |
fa4ba8da | 2091 | int i; |
d6b48e9c | 2092 | struct inferior *inf; |
9d3789f7 | 2093 | |
a493e3e2 | 2094 | last_sig = GDB_SIGNAL_0; |
9d3789f7 CF |
2095 | event_count = 0; |
2096 | exception_count = 0; | |
bf25528d | 2097 | open_process_used = 0; |
fa4ba8da | 2098 | debug_registers_changed = 0; |
dfe7f3ac | 2099 | debug_registers_used = 0; |
fa4ba8da PM |
2100 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
2101 | dr[i] = 0; | |
10325bc5 | 2102 | #ifdef __CYGWIN__ |
de1b3c3d | 2103 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 2104 | #endif |
9d3789f7 CF |
2105 | current_event.dwProcessId = pid; |
2106 | memset (¤t_event, 0, sizeof (current_event)); | |
6a3cb8e8 PA |
2107 | if (!target_is_pushed (ops)) |
2108 | push_target (ops); | |
cb851954 | 2109 | disable_breakpoints_in_shlibs (); |
dc05df57 | 2110 | windows_clear_solib (); |
88056fbb | 2111 | clear_proceed_status (0); |
9d3789f7 CF |
2112 | init_wait_for_inferior (); |
2113 | ||
46f9f931 HD |
2114 | #ifdef __x86_64__ |
2115 | ignore_first_breakpoint = !attaching && wow64_process; | |
2116 | ||
2117 | if (!wow64_process) | |
2118 | { | |
2119 | windows_set_context_register_offsets (amd64_mappings); | |
2120 | windows_set_segment_register_p (amd64_windows_segment_register_p); | |
2121 | } | |
2122 | else | |
2123 | #endif | |
2124 | { | |
2125 | windows_set_context_register_offsets (i386_mappings); | |
2126 | windows_set_segment_register_p (i386_windows_segment_register_p); | |
2127 | } | |
2128 | ||
6c95b8df PA |
2129 | inf = current_inferior (); |
2130 | inferior_appeared (inf, pid); | |
181e7f93 | 2131 | inf->attach_flag = attaching; |
7f9f62ba | 2132 | |
9f9d052e PM |
2133 | /* Make the new process the current inferior, so terminal handling |
2134 | can rely on it. When attaching, we don't know about any thread | |
2135 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 2136 | current thread until we report an event out of windows_wait. */ |
f2907e49 | 2137 | inferior_ptid = ptid_t (pid); |
9f9d052e | 2138 | |
223ffa71 TT |
2139 | target_terminal::init (); |
2140 | target_terminal::inferior (); | |
9d3789f7 | 2141 | |
16d905e2 | 2142 | windows_initialization_done = 0; |
c72f45d1 | 2143 | |
9d3789f7 CF |
2144 | while (1) |
2145 | { | |
c72f45d1 PA |
2146 | struct target_waitstatus status; |
2147 | ||
f6ac5f3d | 2148 | ops->wait (minus_one_ptid, &status, 0); |
c72f45d1 PA |
2149 | |
2150 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
2151 | events. */ | |
2152 | if (status.kind != TARGET_WAITKIND_LOADED | |
2153 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 2154 | break; |
c72f45d1 | 2155 | |
f6ac5f3d | 2156 | ops->resume (minus_one_ptid, 0, GDB_SIGNAL_0); |
9d3789f7 | 2157 | } |
eff8332b | 2158 | |
ea39ad35 | 2159 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
2160 | we can iterate over all DLLs and load them in. |
2161 | ||
2162 | We avoid doing it any earlier because, on certain versions of Windows, | |
2163 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
2164 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
2165 | include the DLL name, preventing us from creating an associated SO. | |
2166 | A possible explanation is that ntdll.dll might be mapped before | |
2167 | the SO info gets created by the Windows system -- ntdll.dll is | |
2168 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
2169 | do not seem to suffer from that problem. | |
2170 | ||
2171 | Rather than try to work around this sort of issue, it is much | |
2172 | simpler to just ignore DLL load/unload events during the startup | |
2173 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 2174 | windows_add_all_dlls (); |
94481b8c | 2175 | |
16d905e2 | 2176 | windows_initialization_done = 1; |
9d3789f7 CF |
2177 | return; |
2178 | } | |
2179 | ||
616a9dc4 CV |
2180 | /* Try to set or remove a user privilege to the current process. Return -1 |
2181 | if that fails, the previous setting of that privilege otherwise. | |
2182 | ||
2183 | This code is copied from the Cygwin source code and rearranged to allow | |
2184 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 2185 | available on NT/2K/XP. */ |
616a9dc4 CV |
2186 | static int |
2187 | set_process_privilege (const char *privilege, BOOL enable) | |
2188 | { | |
616a9dc4 CV |
2189 | HANDLE token_hdl = NULL; |
2190 | LUID restore_priv; | |
2191 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
2192 | int ret = -1; | |
2193 | DWORD size; | |
2194 | ||
616a9dc4 CV |
2195 | if (!OpenProcessToken (GetCurrentProcess (), |
2196 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
2197 | &token_hdl)) | |
2198 | goto out; | |
2199 | ||
418c6cb3 | 2200 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
2201 | goto out; |
2202 | ||
2203 | new_priv.PrivilegeCount = 1; | |
2204 | new_priv.Privileges[0].Luid = restore_priv; | |
2205 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
2206 | ||
2207 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 2208 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
2209 | goto out; |
2210 | #if 0 | |
2211 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
2212 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 2213 | windows_attach(). */ |
616a9dc4 | 2214 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 2215 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
2216 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
2217 | goto out; | |
2218 | #endif | |
2219 | ||
2220 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
2221 | ||
2222 | out: | |
2223 | if (token_hdl) | |
2224 | CloseHandle (token_hdl); | |
2225 | ||
2226 | return ret; | |
2227 | } | |
2228 | ||
02cc9f49 | 2229 | /* Attach to process PID, then initialize for debugging it. */ |
f6ac5f3d PA |
2230 | |
2231 | void | |
2232 | windows_nat_target::attach (const char *args, int from_tty) | |
24e60978 SC |
2233 | { |
2234 | BOOL ok; | |
559e75c0 | 2235 | DWORD pid; |
24e60978 | 2236 | |
74164c56 | 2237 | pid = parse_pid_to_attach (args); |
24e60978 | 2238 | |
616a9dc4 CV |
2239 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
2240 | { | |
2241 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
2242 | printf_unfiltered ("This can cause attach to " |
2243 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
2244 | } |
2245 | ||
dc05df57 | 2246 | windows_init_thread_list (); |
9d3789f7 | 2247 | ok = DebugActiveProcess (pid); |
91a175b3 | 2248 | saw_create = 0; |
24e60978 | 2249 | |
10325bc5 | 2250 | #ifdef __CYGWIN__ |
24e60978 | 2251 | if (!ok) |
baa93fa6 | 2252 | { |
581e13c1 | 2253 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
2254 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
2255 | ||
2256 | if (pid > 0) | |
2257 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
2258 | } |
2259 | #endif | |
baa93fa6 | 2260 | |
10325bc5 | 2261 | if (!ok) |
c9739b6a TT |
2262 | error (_("Can't attach to process %u (error %u)"), |
2263 | (unsigned) pid, (unsigned) GetLastError ()); | |
24e60978 | 2264 | |
2b008701 | 2265 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 2266 | |
24e60978 SC |
2267 | if (from_tty) |
2268 | { | |
d9fa87f4 | 2269 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2270 | |
2271 | if (exec_file) | |
2272 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
a068643d | 2273 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2274 | else |
2275 | printf_unfiltered ("Attaching to %s\n", | |
a068643d | 2276 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2277 | } |
2278 | ||
46f9f931 HD |
2279 | #ifdef __x86_64__ |
2280 | HANDLE h = OpenProcess (PROCESS_QUERY_INFORMATION, FALSE, pid); | |
2281 | if (h != NULL) | |
2282 | { | |
2283 | BOOL wow64; | |
2284 | if (IsWow64Process (h, &wow64)) | |
2285 | wow64_process = wow64; | |
2286 | CloseHandle (h); | |
2287 | } | |
2288 | #endif | |
2289 | ||
f6ac5f3d | 2290 | do_initial_windows_stuff (this, pid, 1); |
223ffa71 | 2291 | target_terminal::ours (); |
24e60978 SC |
2292 | } |
2293 | ||
f6ac5f3d PA |
2294 | void |
2295 | windows_nat_target::detach (inferior *inf, int from_tty) | |
24e60978 | 2296 | { |
02cc9f49 CV |
2297 | int detached = 1; |
2298 | ||
8473b447 | 2299 | ptid_t ptid = minus_one_ptid; |
f6ac5f3d | 2300 | resume (ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 2301 | |
2b008701 CF |
2302 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
2303 | { | |
d50a0ce2 CV |
2304 | error (_("Can't detach process %u (error %u)"), |
2305 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 2306 | detached = 0; |
02cc9f49 | 2307 | } |
2b008701 CF |
2308 | DebugSetProcessKillOnExit (FALSE); |
2309 | ||
02cc9f49 | 2310 | if (detached && from_tty) |
24e60978 | 2311 | { |
a121b7c1 | 2312 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2313 | if (exec_file == 0) |
2314 | exec_file = ""; | |
d50a0ce2 CV |
2315 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
2316 | (unsigned) current_event.dwProcessId); | |
24e60978 | 2317 | } |
7f9f62ba | 2318 | |
df7e5265 | 2319 | x86_cleanup_dregs (); |
39f77062 | 2320 | inferior_ptid = null_ptid; |
b7a08269 | 2321 | detach_inferior (inf); |
7f9f62ba | 2322 | |
f6ac5f3d | 2323 | maybe_unpush_target (); |
24e60978 SC |
2324 | } |
2325 | ||
47f7ffdb JB |
2326 | /* Try to determine the executable filename. |
2327 | ||
2328 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
2329 | ||
2330 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
2331 | this function returns nonzero. | |
2332 | ||
2333 | Otherwise, this function returns zero and the contents of | |
2334 | EXE_NAME_RET is undefined. */ | |
2335 | ||
2336 | static int | |
2337 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
2338 | { | |
2339 | DWORD len; | |
2340 | HMODULE dh_buf; | |
2341 | DWORD cbNeeded; | |
2342 | ||
2343 | cbNeeded = 0; | |
46f9f931 HD |
2344 | #ifdef __x86_64__ |
2345 | if (wow64_process) | |
2346 | { | |
2347 | if (!EnumProcessModulesEx (current_process_handle, &dh_buf, | |
2348 | sizeof (HMODULE), &cbNeeded, | |
2349 | LIST_MODULES_32BIT) || !cbNeeded) | |
2350 | return 0; | |
2351 | } | |
2352 | else | |
2353 | #endif | |
2354 | { | |
2355 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
2356 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
2357 | return 0; | |
2358 | } | |
47f7ffdb JB |
2359 | |
2360 | /* We know the executable is always first in the list of modules, | |
2361 | which we just fetched. So no need to fetch more. */ | |
2362 | ||
2363 | #ifdef __CYGWIN__ | |
2364 | { | |
2365 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
2366 | the filename into a temporary buffer first, and then convert it | |
2367 | to POSIX format into the destination buffer. */ | |
0ae534d2 | 2368 | cygwin_buf_t *pathbuf = (cygwin_buf_t *) alloca (exe_name_max_len * sizeof (cygwin_buf_t)); |
47f7ffdb JB |
2369 | |
2370 | len = GetModuleFileNameEx (current_process_handle, | |
2371 | dh_buf, pathbuf, exe_name_max_len); | |
2372 | if (len == 0) | |
2373 | error (_("Error getting executable filename: %u."), | |
2374 | (unsigned) GetLastError ()); | |
2375 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
2376 | exe_name_max_len) < 0) | |
2377 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
2378 | } | |
2379 | #else | |
2380 | len = GetModuleFileNameEx (current_process_handle, | |
2381 | dh_buf, exe_name_ret, exe_name_max_len); | |
2382 | if (len == 0) | |
2383 | error (_("Error getting executable filename: %u."), | |
2384 | (unsigned) GetLastError ()); | |
2385 | #endif | |
2386 | ||
2387 | return 1; /* success */ | |
2388 | } | |
2389 | ||
2390 | /* The pid_to_exec_file target_ops method for this platform. */ | |
2391 | ||
f6ac5f3d PA |
2392 | char * |
2393 | windows_nat_target::pid_to_exec_file (int pid) | |
47216e51 | 2394 | { |
b3c613f2 | 2395 | static char path[__PMAX]; |
10325bc5 | 2396 | #ifdef __CYGWIN__ |
581e13c1 | 2397 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
2398 | int nchars; |
2399 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
2400 | |
2401 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
2402 | nchars = readlink (procexe, path, sizeof(path)); |
2403 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 2404 | { |
33605d39 CF |
2405 | path[nchars] = '\0'; /* Got it */ |
2406 | return path; | |
47216e51 | 2407 | } |
10325bc5 PA |
2408 | #endif |
2409 | ||
33605d39 | 2410 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 2411 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 2412 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
2413 | path[0] = '\0'; |
2414 | ||
2415 | return path; | |
47216e51 CV |
2416 | } |
2417 | ||
24e60978 SC |
2418 | /* Print status information about what we're accessing. */ |
2419 | ||
f6ac5f3d PA |
2420 | void |
2421 | windows_nat_target::files_info () | |
24e60978 | 2422 | { |
181e7f93 PA |
2423 | struct inferior *inf = current_inferior (); |
2424 | ||
24e60978 | 2425 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 | 2426 | inf->attach_flag ? "attached" : "child", |
a068643d | 2427 | target_pid_to_str (inferior_ptid).c_str ()); |
24e60978 SC |
2428 | } |
2429 | ||
cd44747c PM |
2430 | /* Modify CreateProcess parameters for use of a new separate console. |
2431 | Parameters are: | |
2432 | *FLAGS: DWORD parameter for general process creation flags. | |
2433 | *SI: STARTUPINFO structure, for which the console window size and | |
2434 | console buffer size is filled in if GDB is running in a console. | |
2435 | to create the new console. | |
2436 | The size of the used font is not available on all versions of | |
2437 | Windows OS. Furthermore, the current font might not be the default | |
2438 | font, but this is still better than before. | |
2439 | If the windows and buffer sizes are computed, | |
2440 | SI->DWFLAGS is changed so that this information is used | |
2441 | by CreateProcess function. */ | |
2442 | ||
2443 | static void | |
2444 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
2445 | { | |
2446 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
2447 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
2448 | ||
2449 | if (hconsole != INVALID_HANDLE_VALUE) | |
2450 | { | |
2451 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2452 | COORD font_size; | |
2453 | CONSOLE_FONT_INFO cfi; | |
2454 | ||
2455 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2456 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2457 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2458 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2459 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2460 | if (font_size.X) | |
2461 | si->dwXSize *= font_size.X; | |
2462 | else | |
2463 | si->dwXSize *= 8; | |
2464 | if (font_size.Y) | |
2465 | si->dwYSize *= font_size.Y; | |
2466 | else | |
2467 | si->dwYSize *= 12; | |
2468 | si->dwXCountChars = sbinfo.dwSize.X; | |
2469 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2470 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2471 | } | |
2472 | *flags |= CREATE_NEW_CONSOLE; | |
2473 | } | |
2474 | ||
c93dbcba EZ |
2475 | #ifndef __CYGWIN__ |
2476 | /* Function called by qsort to sort environment strings. */ | |
2477 | ||
2478 | static int | |
2479 | envvar_cmp (const void *a, const void *b) | |
2480 | { | |
2481 | const char **p = (const char **) a; | |
2482 | const char **q = (const char **) b; | |
2483 | return strcasecmp (*p, *q); | |
2484 | } | |
2485 | #endif | |
2486 | ||
b7ff339d CV |
2487 | #ifdef __CYGWIN__ |
2488 | static void | |
2489 | clear_win32_environment (char **env) | |
2490 | { | |
2491 | int i; | |
2492 | size_t len; | |
2493 | wchar_t *copy = NULL, *equalpos; | |
2494 | ||
2495 | for (i = 0; env[i] && *env[i]; i++) | |
2496 | { | |
2497 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2498 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2499 | mbstowcs (copy, env[i], len); | |
2500 | equalpos = wcschr (copy, L'='); | |
2501 | if (equalpos) | |
2502 | *equalpos = L'\0'; | |
2503 | SetEnvironmentVariableW (copy, NULL); | |
2504 | } | |
2505 | xfree (copy); | |
2506 | } | |
2507 | #endif | |
2508 | ||
8ba42bc5 EZ |
2509 | #ifndef __CYGWIN__ |
2510 | ||
2511 | /* Redirection of inferior I/O streams for native MS-Windows programs. | |
2512 | Unlike on Unix, where this is handled by invoking the inferior via | |
2513 | the shell, on MS-Windows we need to emulate the cmd.exe shell. | |
2514 | ||
2515 | The official documentation of the cmd.exe redirection features is here: | |
2516 | ||
2517 | http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/redirection.mspx | |
2518 | ||
2519 | (That page talks about Windows XP, but there's no newer | |
2520 | documentation, so we assume later versions of cmd.exe didn't change | |
2521 | anything.) | |
2522 | ||
2523 | Caveat: the documentation on that page seems to include a few lies. | |
2524 | For example, it describes strange constructs 1<&2 and 2<&1, which | |
2525 | seem to work only when 1>&2 resp. 2>&1 would make sense, and so I | |
2526 | think the cmd.exe parser of the redirection symbols simply doesn't | |
2527 | care about the < vs > distinction in these cases. Therefore, the | |
2528 | supported features are explicitly documented below. | |
2529 | ||
2530 | The emulation below aims at supporting all the valid use cases | |
2531 | supported by cmd.exe, which include: | |
2532 | ||
2533 | < FILE redirect standard input from FILE | |
2534 | 0< FILE redirect standard input from FILE | |
2535 | <&N redirect standard input from file descriptor N | |
2536 | 0<&N redirect standard input from file descriptor N | |
2537 | > FILE redirect standard output to FILE | |
2538 | >> FILE append standard output to FILE | |
2539 | 1>> FILE append standard output to FILE | |
2540 | >&N redirect standard output to file descriptor N | |
2541 | 1>&N redirect standard output to file descriptor N | |
2542 | >>&N append standard output to file descriptor N | |
2543 | 1>>&N append standard output to file descriptor N | |
2544 | 2> FILE redirect standard error to FILE | |
2545 | 2>> FILE append standard error to FILE | |
2546 | 2>&N redirect standard error to file descriptor N | |
2547 | 2>>&N append standard error to file descriptor N | |
2548 | ||
2549 | Note that using N > 2 in the above construct is supported, but | |
2550 | requires that the corresponding file descriptor be open by some | |
2551 | means elsewhere or outside GDB. Also note that using ">&0" or | |
2552 | "<&2" will generally fail, because the file descriptor redirected | |
2553 | from is normally open in an incompatible mode (e.g., FD 0 is open | |
2554 | for reading only). IOW, use of such tricks is not recommended; | |
2555 | you are on your own. | |
2556 | ||
2557 | We do NOT support redirection of file descriptors above 2, as in | |
2558 | "3>SOME-FILE", because MinGW compiled programs don't (supporting | |
2559 | that needs special handling in the startup code that MinGW | |
2560 | doesn't have). Pipes are also not supported. | |
2561 | ||
2562 | As for invalid use cases, where the redirection contains some | |
2563 | error, the emulation below will detect that and produce some | |
2564 | error and/or failure. But the behavior in those cases is not | |
2565 | bug-for-bug compatible with what cmd.exe does in those cases. | |
2566 | That's because what cmd.exe does then is not well defined, and | |
2567 | seems to be a side effect of the cmd.exe parsing of the command | |
2568 | line more than anything else. For example, try redirecting to an | |
2569 | invalid file name, as in "> foo:bar". | |
2570 | ||
2571 | There are also minor syntactic deviations from what cmd.exe does | |
2572 | in some corner cases. For example, it doesn't support the likes | |
2573 | of "> &foo" to mean redirect to file named literally "&foo"; we | |
2574 | do support that here, because that, too, sounds like some issue | |
2575 | with the cmd.exe parser. Another nicety is that we support | |
2576 | redirection targets that use file names with forward slashes, | |
2577 | something cmd.exe doesn't -- this comes in handy since GDB | |
2578 | file-name completion can be used when typing the command line for | |
2579 | the inferior. */ | |
2580 | ||
2581 | /* Support routines for redirecting standard handles of the inferior. */ | |
2582 | ||
2583 | /* Parse a single redirection spec, open/duplicate the specified | |
2584 | file/fd, and assign the appropriate value to one of the 3 standard | |
2585 | file descriptors. */ | |
2586 | static int | |
2587 | redir_open (const char *redir_string, int *inp, int *out, int *err) | |
2588 | { | |
2589 | int *fd, ref_fd = -2; | |
2590 | int mode; | |
2591 | const char *fname = redir_string + 1; | |
2592 | int rc = *redir_string; | |
2593 | ||
2594 | switch (rc) | |
2595 | { | |
2596 | case '0': | |
2597 | fname++; | |
2598 | /* FALLTHROUGH */ | |
2599 | case '<': | |
2600 | fd = inp; | |
2601 | mode = O_RDONLY; | |
2602 | break; | |
2603 | case '1': case '2': | |
2604 | fname++; | |
2605 | /* FALLTHROUGH */ | |
2606 | case '>': | |
2607 | fd = (rc == '2') ? err : out; | |
2608 | mode = O_WRONLY | O_CREAT; | |
2609 | if (*fname == '>') | |
2610 | { | |
2611 | fname++; | |
2612 | mode |= O_APPEND; | |
2613 | } | |
2614 | else | |
2615 | mode |= O_TRUNC; | |
2616 | break; | |
2617 | default: | |
2618 | return -1; | |
2619 | } | |
2620 | ||
2621 | if (*fname == '&' && '0' <= fname[1] && fname[1] <= '9') | |
2622 | { | |
2623 | /* A reference to a file descriptor. */ | |
2624 | char *fdtail; | |
2625 | ref_fd = (int) strtol (fname + 1, &fdtail, 10); | |
2626 | if (fdtail > fname + 1 && *fdtail == '\0') | |
2627 | { | |
2628 | /* Don't allow redirection when open modes are incompatible. */ | |
2629 | if ((ref_fd == 0 && (fd == out || fd == err)) | |
2630 | || ((ref_fd == 1 || ref_fd == 2) && fd == inp)) | |
2631 | { | |
2632 | errno = EPERM; | |
2633 | return -1; | |
2634 | } | |
2635 | if (ref_fd == 0) | |
2636 | ref_fd = *inp; | |
2637 | else if (ref_fd == 1) | |
2638 | ref_fd = *out; | |
2639 | else if (ref_fd == 2) | |
2640 | ref_fd = *err; | |
2641 | } | |
2642 | else | |
2643 | { | |
2644 | errno = EBADF; | |
2645 | return -1; | |
2646 | } | |
2647 | } | |
2648 | else | |
2649 | fname++; /* skip the separator space */ | |
2650 | /* If the descriptor is already open, close it. This allows | |
2651 | multiple specs of redirections for the same stream, which is | |
2652 | somewhat nonsensical, but still valid and supported by cmd.exe. | |
2653 | (But cmd.exe only opens a single file in this case, the one | |
2654 | specified by the last redirection spec on the command line.) */ | |
2655 | if (*fd >= 0) | |
2656 | _close (*fd); | |
2657 | if (ref_fd == -2) | |
2658 | { | |
2659 | *fd = _open (fname, mode, _S_IREAD | _S_IWRITE); | |
2660 | if (*fd < 0) | |
2661 | return -1; | |
2662 | } | |
2663 | else if (ref_fd == -1) | |
2664 | *fd = -1; /* reset to default destination */ | |
2665 | else | |
2666 | { | |
2667 | *fd = _dup (ref_fd); | |
2668 | if (*fd < 0) | |
2669 | return -1; | |
2670 | } | |
2671 | /* _open just sets a flag for O_APPEND, which won't be passed to the | |
2672 | inferior, so we need to actually move the file pointer. */ | |
2673 | if ((mode & O_APPEND) != 0) | |
2674 | _lseek (*fd, 0L, SEEK_END); | |
2675 | return 0; | |
2676 | } | |
2677 | ||
2678 | /* Canonicalize a single redirection spec and set up the corresponding | |
2679 | file descriptor as specified. */ | |
2680 | static int | |
2681 | redir_set_redirection (const char *s, int *inp, int *out, int *err) | |
2682 | { | |
2683 | char buf[__PMAX + 2 + 5]; /* extra space for quotes & redirection string */ | |
2684 | char *d = buf; | |
2685 | const char *start = s; | |
2686 | int quote = 0; | |
2687 | ||
2688 | *d++ = *s++; /* copy the 1st character, < or > or a digit */ | |
2689 | if ((*start == '>' || *start == '1' || *start == '2') | |
2690 | && *s == '>') | |
2691 | { | |
2692 | *d++ = *s++; | |
2693 | if (*s == '>' && *start != '>') | |
2694 | *d++ = *s++; | |
2695 | } | |
2696 | else if (*start == '0' && *s == '<') | |
2697 | *d++ = *s++; | |
2698 | /* cmd.exe recognizes "&N" only immediately after the redirection symbol. */ | |
2699 | if (*s != '&') | |
2700 | { | |
2701 | while (isspace (*s)) /* skip whitespace before file name */ | |
2702 | s++; | |
2703 | *d++ = ' '; /* separate file name with a single space */ | |
2704 | } | |
2705 | ||
2706 | /* Copy the file name. */ | |
2707 | while (*s) | |
2708 | { | |
2709 | /* Remove quoting characters from the file name in buf[]. */ | |
2710 | if (*s == '"') /* could support '..' quoting here */ | |
2711 | { | |
2712 | if (!quote) | |
2713 | quote = *s++; | |
2714 | else if (*s == quote) | |
2715 | { | |
2716 | quote = 0; | |
2717 | s++; | |
2718 | } | |
2719 | else | |
2720 | *d++ = *s++; | |
2721 | } | |
2722 | else if (*s == '\\') | |
2723 | { | |
2724 | if (s[1] == '"') /* could support '..' here */ | |
2725 | s++; | |
2726 | *d++ = *s++; | |
2727 | } | |
2728 | else if (isspace (*s) && !quote) | |
2729 | break; | |
2730 | else | |
2731 | *d++ = *s++; | |
2732 | if (d - buf >= sizeof (buf) - 1) | |
2733 | { | |
2734 | errno = ENAMETOOLONG; | |
2735 | return 0; | |
2736 | } | |
2737 | } | |
2738 | *d = '\0'; | |
2739 | ||
2740 | /* Windows doesn't allow redirection characters in file names, so we | |
2741 | can bail out early if they use them, or if there's no target file | |
2742 | name after the redirection symbol. */ | |
2743 | if (d[-1] == '>' || d[-1] == '<') | |
2744 | { | |
2745 | errno = ENOENT; | |
2746 | return 0; | |
2747 | } | |
2748 | if (redir_open (buf, inp, out, err) == 0) | |
2749 | return s - start; | |
2750 | return 0; | |
2751 | } | |
2752 | ||
2753 | /* Parse the command line for redirection specs and prepare the file | |
2754 | descriptors for the 3 standard streams accordingly. */ | |
2755 | static bool | |
2756 | redirect_inferior_handles (const char *cmd_orig, char *cmd, | |
2757 | int *inp, int *out, int *err) | |
2758 | { | |
2759 | const char *s = cmd_orig; | |
2760 | char *d = cmd; | |
2761 | int quote = 0; | |
2762 | bool retval = false; | |
2763 | ||
2764 | while (isspace (*s)) | |
2765 | *d++ = *s++; | |
2766 | ||
2767 | while (*s) | |
2768 | { | |
2769 | if (*s == '"') /* could also support '..' quoting here */ | |
2770 | { | |
2771 | if (!quote) | |
2772 | quote = *s; | |
2773 | else if (*s == quote) | |
2774 | quote = 0; | |
2775 | } | |
2776 | else if (*s == '\\') | |
2777 | { | |
2778 | if (s[1] == '"') /* escaped quote char */ | |
2779 | s++; | |
2780 | } | |
2781 | else if (!quote) | |
2782 | { | |
2783 | /* Process a single redirection candidate. */ | |
2784 | if (*s == '<' || *s == '>' | |
2785 | || ((*s == '1' || *s == '2') && s[1] == '>') | |
2786 | || (*s == '0' && s[1] == '<')) | |
2787 | { | |
2788 | int skip = redir_set_redirection (s, inp, out, err); | |
2789 | ||
2790 | if (skip <= 0) | |
2791 | return false; | |
2792 | retval = true; | |
2793 | s += skip; | |
2794 | } | |
2795 | } | |
2796 | if (*s) | |
2797 | *d++ = *s++; | |
2798 | } | |
2799 | *d = '\0'; | |
2800 | return retval; | |
2801 | } | |
2802 | #endif /* !__CYGWIN__ */ | |
2803 | ||
dc05df57 | 2804 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2805 | EXEC_FILE is the file to run. |
2806 | ALLARGS is a string containing the arguments to the program. | |
2807 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2808 | ||
f6ac5f3d PA |
2809 | void |
2810 | windows_nat_target::create_inferior (const char *exec_file, | |
2811 | const std::string &origallargs, | |
2812 | char **in_env, int from_tty) | |
24e60978 | 2813 | { |
b3c613f2 | 2814 | STARTUPINFO si; |
41b4aadc | 2815 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2816 | cygwin_buf_t real_path[__PMAX]; |
2817 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d092c5a2 | 2818 | cygwin_buf_t infcwd[__PMAX]; |
d0d0ab16 | 2819 | const char *sh; |
b3c613f2 CF |
2820 | cygwin_buf_t *toexec; |
2821 | cygwin_buf_t *cygallargs; | |
2822 | cygwin_buf_t *args; | |
b7ff339d CV |
2823 | char **old_env = NULL; |
2824 | PWCHAR w32_env; | |
d0d0ab16 | 2825 | size_t len; |
2becadee CF |
2826 | int tty; |
2827 | int ostdin, ostdout, ostderr; | |
8ba42bc5 | 2828 | #else /* !__CYGWIN__ */ |
b3c613f2 | 2829 | char shell[__PMAX]; /* Path to shell */ |
5430098f | 2830 | const char *toexec; |
8ba42bc5 EZ |
2831 | char *args, *allargs_copy; |
2832 | size_t args_len, allargs_len; | |
2833 | int fd_inp = -1, fd_out = -1, fd_err = -1; | |
2834 | HANDLE tty = INVALID_HANDLE_VALUE; | |
8ba42bc5 | 2835 | bool redirected = false; |
c93dbcba EZ |
2836 | char *w32env; |
2837 | char *temp; | |
2838 | size_t envlen; | |
2839 | int i; | |
2840 | size_t envsize; | |
2841 | char **env; | |
8ba42bc5 | 2842 | #endif /* !__CYGWIN__ */ |
096c92dd | 2843 | const char *allargs = origallargs.c_str (); |
d0d0ab16 CV |
2844 | PROCESS_INFORMATION pi; |
2845 | BOOL ret; | |
2846 | DWORD flags = 0; | |
3cb3b8df | 2847 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2848 | |
2849 | if (!exec_file) | |
8a3fe4f8 | 2850 | error (_("No executable specified, use `target exec'.")); |
24e60978 | 2851 | |
d092c5a2 SDJ |
2852 | const char *inferior_cwd = get_inferior_cwd (); |
2853 | std::string expanded_infcwd; | |
2854 | if (inferior_cwd != NULL) | |
2855 | { | |
2856 | expanded_infcwd = gdb_tilde_expand (inferior_cwd); | |
2857 | /* Mirror slashes on inferior's cwd. */ | |
2858 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), | |
2859 | '/', '\\'); | |
2860 | inferior_cwd = expanded_infcwd.c_str (); | |
2861 | } | |
2862 | ||
24e60978 SC |
2863 | memset (&si, 0, sizeof (si)); |
2864 | si.cb = sizeof (si); | |
2865 | ||
d0d0ab16 CV |
2866 | if (new_group) |
2867 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2868 | ||
2869 | if (new_console) | |
cd44747c | 2870 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2871 | |
10325bc5 | 2872 | #ifdef __CYGWIN__ |
349b409f | 2873 | if (!useshell) |
dfe7f3ac | 2874 | { |
d0d0ab16 CV |
2875 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2876 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2877 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2878 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2879 | toexec = real_path; |
b3c613f2 | 2880 | #ifdef __USEWIDE |
d0d0ab16 CV |
2881 | len = mbstowcs (NULL, allargs, 0) + 1; |
2882 | if (len == (size_t) -1) | |
2883 | error (_("Error starting executable: %d"), errno); | |
2884 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2885 | mbstowcs (cygallargs, allargs, len); | |
8ba42bc5 | 2886 | #else /* !__USEWIDE */ |
60c5c021 | 2887 | cygallargs = allargs; |
b3c613f2 | 2888 | #endif |
dfe7f3ac CF |
2889 | } |
2890 | else | |
2891 | { | |
974e6844 | 2892 | sh = get_shell (); |
b3c613f2 | 2893 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2894 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2895 | #ifdef __USEWIDE |
d0d0ab16 CV |
2896 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2897 | + mbstowcs (NULL, allargs, 0) + 2; | |
2898 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2899 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2900 | #else /* !__USEWIDE */ |
08850b56 PM |
2901 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2902 | + strlen (allargs) + 2); | |
2903 | cygallargs = (char *) alloca (len); | |
2904 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2905 | #endif /* __USEWIDE */ |
dfe7f3ac | 2906 | toexec = shell; |
d0d0ab16 | 2907 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2908 | } |
b3c613f2 | 2909 | |
d092c5a2 SDJ |
2910 | if (inferior_cwd != NULL |
2911 | && cygwin_conv_path (CCP_POSIX_TO_WIN_W, inferior_cwd, | |
2912 | infcwd, strlen (inferior_cwd)) < 0) | |
2913 | error (_("Error converting inferior cwd: %d"), errno); | |
2914 | ||
b3c613f2 CF |
2915 | #ifdef __USEWIDE |
2916 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2917 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2918 | wcscpy (args, toexec); |
2919 | wcscat (args, L" "); | |
2920 | wcscat (args, cygallargs); | |
8ba42bc5 | 2921 | #else /* !__USEWIDE */ |
b3c613f2 CF |
2922 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); |
2923 | strcpy (args, toexec); | |
2924 | strcat (args, " "); | |
2925 | strcat (args, cygallargs); | |
8ba42bc5 | 2926 | #endif /* !__USEWIDE */ |
b3c613f2 | 2927 | |
b7ff339d CV |
2928 | #ifdef CW_CVT_ENV_TO_WINENV |
2929 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2930 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2931 | if (w32_env != (PWCHAR) -1) | |
2932 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2933 | else | |
2934 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
8ba42bc5 | 2935 | #endif /* CW_CVT_ENV_TO_WINENV */ |
b7ff339d CV |
2936 | { |
2937 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2938 | clear_win32_environment (environ); | |
2939 | /* Prepare the environment vars for CreateProcess. */ | |
2940 | old_env = environ; | |
2941 | environ = in_env; | |
2942 | cygwin_internal (CW_SYNC_WINENV); | |
2943 | w32_env = NULL; | |
2944 | } | |
1750a5ef | 2945 | |
2becadee CF |
2946 | if (!inferior_io_terminal) |
2947 | tty = ostdin = ostdout = ostderr = -1; | |
2948 | else | |
2949 | { | |
2950 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2951 | if (tty < 0) | |
2952 | { | |
2953 | print_sys_errmsg (inferior_io_terminal, errno); | |
2954 | ostdin = ostdout = ostderr = -1; | |
2955 | } | |
2956 | else | |
2957 | { | |
2958 | ostdin = dup (0); | |
2959 | ostdout = dup (1); | |
2960 | ostderr = dup (2); | |
2961 | dup2 (tty, 0); | |
2962 | dup2 (tty, 1); | |
2963 | dup2 (tty, 2); | |
2964 | } | |
2965 | } | |
d0d0ab16 CV |
2966 | |
2967 | windows_init_thread_list (); | |
b3c613f2 CF |
2968 | ret = CreateProcess (0, |
2969 | args, /* command line */ | |
2970 | NULL, /* Security */ | |
2971 | NULL, /* thread */ | |
2972 | TRUE, /* inherit handles */ | |
2973 | flags, /* start flags */ | |
b7ff339d | 2974 | w32_env, /* environment */ |
d092c5a2 SDJ |
2975 | inferior_cwd != NULL ? infcwd : NULL, /* current |
2976 | directory */ | |
b3c613f2 CF |
2977 | &si, |
2978 | &pi); | |
b7ff339d CV |
2979 | if (w32_env) |
2980 | /* Just free the Win32 environment, if it could be created. */ | |
2981 | free (w32_env); | |
2982 | else | |
2983 | { | |
2984 | /* Reset all environment variables to avoid leftover on next run. */ | |
2985 | clear_win32_environment (in_env); | |
2986 | /* Restore normal GDB environment variables. */ | |
2987 | environ = old_env; | |
2988 | cygwin_internal (CW_SYNC_WINENV); | |
2989 | } | |
2990 | ||
d0d0ab16 CV |
2991 | if (tty >= 0) |
2992 | { | |
6af79d7b | 2993 | ::close (tty); |
d0d0ab16 CV |
2994 | dup2 (ostdin, 0); |
2995 | dup2 (ostdout, 1); | |
2996 | dup2 (ostderr, 2); | |
6af79d7b JT |
2997 | ::close (ostdin); |
2998 | ::close (ostdout); | |
2999 | ::close (ostderr); | |
d0d0ab16 | 3000 | } |
8ba42bc5 EZ |
3001 | #else /* !__CYGWIN__ */ |
3002 | allargs_len = strlen (allargs); | |
3003 | allargs_copy = strcpy ((char *) alloca (allargs_len + 1), allargs); | |
3004 | if (strpbrk (allargs_copy, "<>") != NULL) | |
3005 | { | |
3006 | int e = errno; | |
3007 | errno = 0; | |
3008 | redirected = | |
3009 | redirect_inferior_handles (allargs, allargs_copy, | |
3010 | &fd_inp, &fd_out, &fd_err); | |
3011 | if (errno) | |
6d91ce9a | 3012 | warning (_("Error in redirection: %s."), safe_strerror (errno)); |
8ba42bc5 EZ |
3013 | else |
3014 | errno = e; | |
3015 | allargs_len = strlen (allargs_copy); | |
3016 | } | |
3017 | /* If not all the standard streams are redirected by the command | |
3018 | line, use inferior_io_terminal for those which aren't. */ | |
3019 | if (inferior_io_terminal | |
3020 | && !(fd_inp >= 0 && fd_out >= 0 && fd_err >= 0)) | |
41b4aadc CF |
3021 | { |
3022 | SECURITY_ATTRIBUTES sa; | |
3023 | sa.nLength = sizeof(sa); | |
3024 | sa.lpSecurityDescriptor = 0; | |
3025 | sa.bInheritHandle = TRUE; | |
3026 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
3027 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
3028 | if (tty == INVALID_HANDLE_VALUE) | |
3029 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
3030 | inferior_io_terminal, (unsigned) GetLastError ()); | |
8ba42bc5 EZ |
3031 | } |
3032 | if (redirected || tty != INVALID_HANDLE_VALUE) | |
3033 | { | |
3034 | if (fd_inp >= 0) | |
3035 | si.hStdInput = (HANDLE) _get_osfhandle (fd_inp); | |
3036 | else if (tty != INVALID_HANDLE_VALUE) | |
3037 | si.hStdInput = tty; | |
41b4aadc | 3038 | else |
8ba42bc5 EZ |
3039 | si.hStdInput = GetStdHandle (STD_INPUT_HANDLE); |
3040 | if (fd_out >= 0) | |
3041 | si.hStdOutput = (HANDLE) _get_osfhandle (fd_out); | |
3042 | else if (tty != INVALID_HANDLE_VALUE) | |
3043 | si.hStdOutput = tty; | |
3044 | else | |
3045 | si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE); | |
3046 | if (fd_err >= 0) | |
3047 | si.hStdError = (HANDLE) _get_osfhandle (fd_err); | |
3048 | else if (tty != INVALID_HANDLE_VALUE) | |
3049 | si.hStdError = tty; | |
3050 | else | |
3051 | si.hStdError = GetStdHandle (STD_ERROR_HANDLE); | |
3052 | si.dwFlags |= STARTF_USESTDHANDLES; | |
41b4aadc | 3053 | } |
2becadee | 3054 | |
8ba42bc5 EZ |
3055 | toexec = exec_file; |
3056 | /* Build the command line, a space-separated list of tokens where | |
3057 | the first token is the name of the module to be executed. | |
3058 | To avoid ambiguities introduced by spaces in the module name, | |
3059 | we quote it. */ | |
3060 | args_len = strlen (toexec) + 2 /* quotes */ + allargs_len + 2; | |
3061 | args = (char *) alloca (args_len); | |
3062 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs_copy); | |
3063 | ||
3064 | flags |= DEBUG_ONLY_THIS_PROCESS; | |
3065 | ||
c93dbcba EZ |
3066 | /* CreateProcess takes the environment list as a null terminated set of |
3067 | strings (i.e. two nulls terminate the list). */ | |
3068 | ||
3069 | /* Get total size for env strings. */ | |
3070 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
3071 | envlen += strlen (in_env[i]) + 1; | |
3072 | ||
3073 | envsize = sizeof (in_env[0]) * (i + 1); | |
3074 | env = (char **) alloca (envsize); | |
3075 | memcpy (env, in_env, envsize); | |
3076 | /* Windows programs expect the environment block to be sorted. */ | |
3077 | qsort (env, i, sizeof (char *), envvar_cmp); | |
3078 | ||
0ae1c716 | 3079 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
3080 | |
3081 | /* Copy env strings into new buffer. */ | |
3082 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
3083 | { | |
3084 | strcpy (temp, env[i]); | |
3085 | temp += strlen (temp) + 1; | |
3086 | } | |
3087 | ||
3088 | /* Final nil string to terminate new env. */ | |
3089 | *temp = 0; | |
3090 | ||
dc05df57 | 3091 | windows_init_thread_list (); |
d0d0ab16 CV |
3092 | ret = CreateProcessA (0, |
3093 | args, /* command line */ | |
3094 | NULL, /* Security */ | |
3095 | NULL, /* thread */ | |
3096 | TRUE, /* inherit handles */ | |
3097 | flags, /* start flags */ | |
c93dbcba | 3098 | w32env, /* environment */ |
d092c5a2 | 3099 | inferior_cwd, /* current directory */ |
d0d0ab16 CV |
3100 | &si, |
3101 | &pi); | |
41b4aadc CF |
3102 | if (tty != INVALID_HANDLE_VALUE) |
3103 | CloseHandle (tty); | |
8ba42bc5 EZ |
3104 | if (fd_inp >= 0) |
3105 | _close (fd_inp); | |
3106 | if (fd_out >= 0) | |
3107 | _close (fd_out); | |
3108 | if (fd_err >= 0) | |
3109 | _close (fd_err); | |
3110 | #endif /* !__CYGWIN__ */ | |
2becadee | 3111 | |
24e60978 | 3112 | if (!ret) |
d50a0ce2 | 3113 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 3114 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 3115 | |
46f9f931 HD |
3116 | #ifdef __x86_64__ |
3117 | BOOL wow64; | |
3118 | if (IsWow64Process (pi.hProcess, &wow64)) | |
3119 | wow64_process = wow64; | |
3120 | #endif | |
3121 | ||
c1766e7d PM |
3122 | CloseHandle (pi.hThread); |
3123 | CloseHandle (pi.hProcess); | |
3124 | ||
dfe7f3ac CF |
3125 | if (useshell && shell[0] != '\0') |
3126 | saw_create = -1; | |
3127 | else | |
3128 | saw_create = 0; | |
3129 | ||
f6ac5f3d | 3130 | do_initial_windows_stuff (this, pi.dwProcessId, 0); |
d3a09475 | 3131 | |
17617f2d | 3132 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
3133 | } |
3134 | ||
f6ac5f3d PA |
3135 | void |
3136 | windows_nat_target::mourn_inferior () | |
24e60978 | 3137 | { |
17617f2d | 3138 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 3139 | x86_cleanup_dregs(); |
bf25528d CF |
3140 | if (open_process_used) |
3141 | { | |
3142 | CHECK (CloseHandle (current_process_handle)); | |
3143 | open_process_used = 0; | |
3144 | } | |
7928d571 | 3145 | siginfo_er.ExceptionCode = 0; |
f6ac5f3d | 3146 | inf_child_target::mourn_inferior (); |
24e60978 SC |
3147 | } |
3148 | ||
24e60978 | 3149 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 3150 | ^C on the controlling terminal. */ |
24e60978 | 3151 | |
f6ac5f3d PA |
3152 | void |
3153 | windows_nat_target::interrupt () | |
24e60978 | 3154 | { |
1ef980b9 | 3155 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 3156 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 3157 | registers_changed (); /* refresh register state */ |
24e60978 SC |
3158 | } |
3159 | ||
44f38867 PA |
3160 | /* Helper for windows_xfer_partial that handles memory transfers. |
3161 | Arguments are like target_xfer_partial. */ | |
3162 | ||
9b409511 | 3163 | static enum target_xfer_status |
44f38867 | 3164 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 3165 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 3166 | { |
5732a500 | 3167 | SIZE_T done = 0; |
44f38867 | 3168 | BOOL success; |
9e52adf9 | 3169 | DWORD lasterror = 0; |
44f38867 PA |
3170 | |
3171 | if (writebuf != NULL) | |
24e60978 | 3172 | { |
a2388568 | 3173 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 3174 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3175 | success = WriteProcessMemory (current_process_handle, |
3176 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
3177 | len, &done); | |
9e52adf9 | 3178 | if (!success) |
7126d5c8 | 3179 | lasterror = GetLastError (); |
2b008701 | 3180 | FlushInstructionCache (current_process_handle, |
2c647436 | 3181 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
3182 | } |
3183 | else | |
3184 | { | |
a2388568 | 3185 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 3186 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3187 | success = ReadProcessMemory (current_process_handle, |
3188 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
3189 | len, &done); | |
9e52adf9 | 3190 | if (!success) |
7126d5c8 | 3191 | lasterror = GetLastError (); |
24e60978 | 3192 | } |
9b409511 | 3193 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 3194 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 3195 | return TARGET_XFER_OK; |
9e52adf9 | 3196 | else |
9b409511 | 3197 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
3198 | } |
3199 | ||
f6ac5f3d PA |
3200 | void |
3201 | windows_nat_target::kill () | |
24e60978 | 3202 | { |
3cee93ac CF |
3203 | CHECK (TerminateProcess (current_process_handle, 0)); |
3204 | ||
b5edcb45 ILT |
3205 | for (;;) |
3206 | { | |
17617f2d | 3207 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 3208 | break; |
3cee93ac | 3209 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 3210 | break; |
3cee93ac | 3211 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
3212 | break; |
3213 | } | |
3214 | ||
9eee20eb | 3215 | target_mourn_inferior (inferior_ptid); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
3216 | } |
3217 | ||
f6ac5f3d PA |
3218 | void |
3219 | windows_nat_target::close () | |
24e60978 | 3220 | { |
dc05df57 | 3221 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
e99b03dc | 3222 | inferior_ptid.pid ())); |
24e60978 | 3223 | } |
1ef980b9 | 3224 | |
581e13c1 | 3225 | /* Convert pid to printable format. */ |
a068643d | 3226 | std::string |
f6ac5f3d | 3227 | windows_nat_target::pid_to_str (ptid_t ptid) |
24e60978 | 3228 | { |
cc6bcb54 | 3229 | if (ptid.tid () != 0) |
a068643d | 3230 | return string_printf ("Thread %d.0x%lx", ptid.pid (), ptid.tid ()); |
2dc38344 PA |
3231 | |
3232 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
3233 | } |
3234 | ||
9b409511 | 3235 | static enum target_xfer_status |
dc05df57 | 3236 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
3237 | enum target_object object, const char *annex, |
3238 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
3239 | ULONGEST offset, ULONGEST len, | |
3240 | ULONGEST *xfered_len) | |
3cb8e7f6 | 3241 | { |
de1b3c3d PA |
3242 | struct obstack obstack; |
3243 | const char *buf; | |
3244 | LONGEST len_avail; | |
3cb8e7f6 | 3245 | struct so_list *so; |
3cb8e7f6 | 3246 | |
de1b3c3d | 3247 | if (writebuf) |
2ed4b548 | 3248 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 3249 | |
de1b3c3d PA |
3250 | obstack_init (&obstack); |
3251 | obstack_grow_str (&obstack, "<library-list>\n"); | |
3252 | for (so = solib_start.next; so; so = so->next) | |
d0e449a1 SM |
3253 | { |
3254 | lm_info_windows *li = (lm_info_windows *) so->lm_info; | |
3255 | ||
3256 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) | |
3257 | (uintptr_t) li->load_addr, | |
c162ed3e | 3258 | &li->text_offset, |
d0e449a1 SM |
3259 | target_gdbarch (), &obstack); |
3260 | } | |
de1b3c3d | 3261 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 3262 | |
0ae1c716 | 3263 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
3264 | len_avail = strlen (buf); |
3265 | if (offset >= len_avail) | |
49dc7f4b PM |
3266 | len= 0; |
3267 | else | |
3268 | { | |
3269 | if (len > len_avail - offset) | |
3270 | len = len_avail - offset; | |
3271 | memcpy (readbuf, buf + offset, len); | |
3272 | } | |
3cb8e7f6 | 3273 | |
de1b3c3d | 3274 | obstack_free (&obstack, NULL); |
9b409511 | 3275 | *xfered_len = (ULONGEST) len; |
0837c976 | 3276 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
3277 | } |
3278 | ||
7928d571 HD |
3279 | /* Helper for windows_nat_target::xfer_partial that handles signal info. */ |
3280 | ||
3281 | static enum target_xfer_status | |
3282 | windows_xfer_siginfo (gdb_byte *readbuf, ULONGEST offset, ULONGEST len, | |
3283 | ULONGEST *xfered_len) | |
3284 | { | |
46f9f931 HD |
3285 | char *buf = (char *) &siginfo_er; |
3286 | size_t bufsize = sizeof (siginfo_er); | |
3287 | ||
3288 | #ifdef __x86_64__ | |
3289 | EXCEPTION_RECORD32 er32; | |
3290 | if (wow64_process) | |
3291 | { | |
3292 | buf = (char *) &er32; | |
3293 | bufsize = sizeof (er32); | |
3294 | ||
3295 | er32.ExceptionCode = siginfo_er.ExceptionCode; | |
3296 | er32.ExceptionFlags = siginfo_er.ExceptionFlags; | |
3297 | er32.ExceptionRecord = (uintptr_t) siginfo_er.ExceptionRecord; | |
3298 | er32.ExceptionAddress = (uintptr_t) siginfo_er.ExceptionAddress; | |
3299 | er32.NumberParameters = siginfo_er.NumberParameters; | |
3300 | int i; | |
3301 | for (i = 0; i < EXCEPTION_MAXIMUM_PARAMETERS; i++) | |
3302 | er32.ExceptionInformation[i] = siginfo_er.ExceptionInformation[i]; | |
3303 | } | |
3304 | #endif | |
3305 | ||
7928d571 HD |
3306 | if (siginfo_er.ExceptionCode == 0) |
3307 | return TARGET_XFER_E_IO; | |
3308 | ||
3309 | if (readbuf == nullptr) | |
3310 | return TARGET_XFER_E_IO; | |
3311 | ||
46f9f931 | 3312 | if (offset > bufsize) |
7928d571 HD |
3313 | return TARGET_XFER_E_IO; |
3314 | ||
46f9f931 HD |
3315 | if (offset + len > bufsize) |
3316 | len = bufsize - offset; | |
7928d571 | 3317 | |
46f9f931 | 3318 | memcpy (readbuf, buf + offset, len); |
7928d571 HD |
3319 | *xfered_len = len; |
3320 | ||
3321 | return TARGET_XFER_OK; | |
3322 | } | |
3323 | ||
f6ac5f3d PA |
3324 | enum target_xfer_status |
3325 | windows_nat_target::xfer_partial (enum target_object object, | |
3326 | const char *annex, gdb_byte *readbuf, | |
2f4f025f TT |
3327 | const gdb_byte *writebuf, ULONGEST offset, |
3328 | ULONGEST len, ULONGEST *xfered_len) | |
3cb8e7f6 | 3329 | { |
de1b3c3d | 3330 | switch (object) |
3cb8e7f6 | 3331 | { |
de1b3c3d | 3332 | case TARGET_OBJECT_MEMORY: |
9b409511 | 3333 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
3334 | |
3335 | case TARGET_OBJECT_LIBRARIES: | |
f6ac5f3d | 3336 | return windows_xfer_shared_libraries (this, object, annex, readbuf, |
9b409511 | 3337 | writebuf, offset, len, xfered_len); |
3929abe9 | 3338 | |
7928d571 HD |
3339 | case TARGET_OBJECT_SIGNAL_INFO: |
3340 | return windows_xfer_siginfo (readbuf, offset, len, xfered_len); | |
3341 | ||
de1b3c3d | 3342 | default: |
2f4f025f | 3343 | if (beneath () == NULL) |
178d6a63 JB |
3344 | { |
3345 | /* This can happen when requesting the transfer of unsupported | |
3346 | objects before a program has been started (and therefore | |
3347 | with the current_target having no target beneath). */ | |
3348 | return TARGET_XFER_E_IO; | |
3349 | } | |
2f4f025f TT |
3350 | return beneath ()->xfer_partial (object, annex, |
3351 | readbuf, writebuf, offset, len, | |
3352 | xfered_len); | |
3929abe9 | 3353 | } |
02c5aecd CF |
3354 | } |
3355 | ||
711e434b PM |
3356 | /* Provide thread local base, i.e. Thread Information Block address. |
3357 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
3358 | ||
57810aa7 | 3359 | bool |
f6ac5f3d | 3360 | windows_nat_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) |
711e434b | 3361 | { |
876d1cd7 | 3362 | windows_thread_info *th; |
711e434b | 3363 | |
cc6bcb54 | 3364 | th = thread_rec (ptid.tid (), 0); |
711e434b | 3365 | if (th == NULL) |
57810aa7 | 3366 | return false; |
711e434b PM |
3367 | |
3368 | if (addr != NULL) | |
3369 | *addr = th->thread_local_base; | |
3370 | ||
57810aa7 | 3371 | return true; |
711e434b PM |
3372 | } |
3373 | ||
f6ac5f3d PA |
3374 | ptid_t |
3375 | windows_nat_target::get_ada_task_ptid (long lwp, long thread) | |
1e2f1c5c | 3376 | { |
e99b03dc | 3377 | return ptid_t (inferior_ptid.pid (), 0, lwp); |
1e2f1c5c JB |
3378 | } |
3379 | ||
24cdb46e РИ |
3380 | /* Implementation of the to_thread_name method. */ |
3381 | ||
f6ac5f3d PA |
3382 | const char * |
3383 | windows_nat_target::thread_name (struct thread_info *thr) | |
24cdb46e | 3384 | { |
cc6bcb54 | 3385 | return thread_rec (thr->ptid.tid (), 0)->name; |
24cdb46e РИ |
3386 | } |
3387 | ||
24e60978 | 3388 | |
6c265988 | 3389 | void _initialize_windows_nat (); |
24e60978 | 3390 | void |
6c265988 | 3391 | _initialize_windows_nat () |
24e60978 | 3392 | { |
df7e5265 GB |
3393 | x86_dr_low.set_control = cygwin_set_dr7; |
3394 | x86_dr_low.set_addr = cygwin_set_dr; | |
3395 | x86_dr_low.get_addr = cygwin_get_dr; | |
3396 | x86_dr_low.get_status = cygwin_get_dr6; | |
3397 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 3398 | |
df7e5265 GB |
3399 | /* x86_dr_low.debug_register_length field is set by |
3400 | calling x86_set_debug_register_length function | |
51a9c8c5 | 3401 | in processor windows specific native file. */ |
fa58ee11 | 3402 | |
d9f719f1 | 3403 | add_inf_child_target (&the_windows_nat_target); |
1ef980b9 | 3404 | |
d0d0ab16 CV |
3405 | #ifdef __CYGWIN__ |
3406 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
3407 | #endif | |
3408 | ||
463888ab РИ |
3409 | add_com ("signal-event", class_run, signal_event_command, _("\ |
3410 | Signal a crashed process with event ID, to allow its debugging.\n\ | |
3411 | This command is needed in support of setting up GDB as JIT debugger on \ | |
3412 | MS-Windows. The command should be invoked from the GDB command line using \ | |
3413 | the '-ex' command-line option. The ID of the event that blocks the \ | |
3414 | crashed process will be supplied by the Windows JIT debugging mechanism.")); | |
3415 | ||
10325bc5 | 3416 | #ifdef __CYGWIN__ |
5bf193a2 AC |
3417 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
3418 | Set use of shell to start subprocess."), _("\ | |
3419 | Show use of shell to start subprocess."), NULL, | |
3420 | NULL, | |
3421 | NULL, /* FIXME: i18n: */ | |
3422 | &setlist, &showlist); | |
3423 | ||
581e13c1 MS |
3424 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
3425 | &cygwin_exceptions, _("\ | |
09280ddf CF |
3426 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
3427 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
3428 | NULL, | |
3429 | NULL, /* FIXME: i18n: */ | |
3430 | &setlist, &showlist); | |
10325bc5 | 3431 | #endif |
09280ddf | 3432 | |
5bf193a2 AC |
3433 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
3434 | Set creation of new console when creating child process."), _("\ | |
3435 | Show creation of new console when creating child process."), NULL, | |
3436 | NULL, | |
3437 | NULL, /* FIXME: i18n: */ | |
3438 | &setlist, &showlist); | |
3439 | ||
3440 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
3441 | Set creation of new group when creating child process."), _("\ | |
3442 | Show creation of new group when creating child process."), NULL, | |
3443 | NULL, | |
3444 | NULL, /* FIXME: i18n: */ | |
3445 | &setlist, &showlist); | |
3446 | ||
3447 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
3448 | Set whether to display execution in child process."), _("\ | |
3449 | Show whether to display execution in child process."), NULL, | |
3450 | NULL, | |
3451 | NULL, /* FIXME: i18n: */ | |
3452 | &setlist, &showlist); | |
3453 | ||
3454 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
3455 | Set whether to display kernel events in child process."), _("\ | |
3456 | Show whether to display kernel events in child process."), NULL, | |
3457 | NULL, | |
3458 | NULL, /* FIXME: i18n: */ | |
3459 | &setlist, &showlist); | |
3460 | ||
3461 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
3462 | Set whether to display memory accesses in child process."), _("\ | |
3463 | Show whether to display memory accesses in child process."), NULL, | |
3464 | NULL, | |
3465 | NULL, /* FIXME: i18n: */ | |
3466 | &setlist, &showlist); | |
3467 | ||
3468 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
3469 | &debug_exceptions, _("\ | |
3470 | Set whether to display kernel exceptions in child process."), _("\ | |
3471 | Show whether to display kernel exceptions in child process."), NULL, | |
3472 | NULL, | |
3473 | NULL, /* FIXME: i18n: */ | |
3474 | &setlist, &showlist); | |
1ef980b9 | 3475 | |
711e434b | 3476 | init_w32_command_list (); |
c1748f97 PM |
3477 | |
3478 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 3479 | _("Display selectors infos."), |
c1748f97 | 3480 | &info_w32_cmdlist); |
24e60978 | 3481 | } |
3cee93ac | 3482 | |
fa4ba8da PM |
3483 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
3484 | ||
3485 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
3486 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 3487 | actually set up when windows_continue is called. */ |
9bb9e8ad | 3488 | static void |
fa4ba8da PM |
3489 | cygwin_set_dr (int i, CORE_ADDR addr) |
3490 | { | |
3491 | if (i < 0 || i > 3) | |
3492 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3493 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 3494 | dr[i] = addr; |
fa4ba8da PM |
3495 | debug_registers_changed = 1; |
3496 | debug_registers_used = 1; | |
3497 | } | |
3498 | ||
3499 | /* Pass the value VAL to the inferior in the DR7 debug control | |
3500 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 3501 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
3502 | static void |
3503 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 3504 | { |
9bb9e8ad | 3505 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
3506 | debug_registers_changed = 1; |
3507 | debug_registers_used = 1; | |
3508 | } | |
3509 | ||
7b50312a PA |
3510 | /* Get the value of debug register I from the inferior. */ |
3511 | ||
3512 | static CORE_ADDR | |
3513 | cygwin_get_dr (int i) | |
3514 | { | |
3515 | return dr[i]; | |
3516 | } | |
3517 | ||
fa4ba8da PM |
3518 | /* Get the value of the DR6 debug status register from the inferior. |
3519 | Here we just return the value stored in dr[6] | |
3520 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 3521 | static unsigned long |
fa4ba8da PM |
3522 | cygwin_get_dr6 (void) |
3523 | { | |
9bb9e8ad | 3524 | return (unsigned long) dr[6]; |
fa4ba8da PM |
3525 | } |
3526 | ||
7b50312a PA |
3527 | /* Get the value of the DR7 debug status register from the inferior. |
3528 | Here we just return the value stored in dr[7] by the last call to | |
3529 | thread_rec for current_event.dwThreadId id. */ | |
3530 | ||
3531 | static unsigned long | |
3532 | cygwin_get_dr7 (void) | |
3533 | { | |
3534 | return (unsigned long) dr[7]; | |
3535 | } | |
3536 | ||
2dc38344 | 3537 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 3538 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 3539 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
f6ac5f3d | 3540 | |
57810aa7 | 3541 | bool |
f6ac5f3d | 3542 | windows_nat_target::thread_alive (ptid_t ptid) |
3cee93ac | 3543 | { |
2dc38344 PA |
3544 | int tid; |
3545 | ||
cc6bcb54 TT |
3546 | gdb_assert (ptid.tid () != 0); |
3547 | tid = ptid.tid (); | |
39f77062 | 3548 | |
57810aa7 | 3549 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) != WAIT_OBJECT_0; |
3cee93ac CF |
3550 | } |
3551 | ||
6c265988 | 3552 | void _initialize_check_for_gdb_ini (); |
2a3d5645 | 3553 | void |
6c265988 | 3554 | _initialize_check_for_gdb_ini () |
2a3d5645 CF |
3555 | { |
3556 | char *homedir; | |
3557 | if (inhibit_gdbinit) | |
3558 | return; | |
3559 | ||
3560 | homedir = getenv ("HOME"); | |
3561 | if (homedir) | |
3562 | { | |
3563 | char *p; | |
3564 | char *oldini = (char *) alloca (strlen (homedir) + | |
1270fac6 | 3565 | sizeof ("gdb.ini") + 1); |
2a3d5645 CF |
3566 | strcpy (oldini, homedir); |
3567 | p = strchr (oldini, '\0'); | |
0ba1096a | 3568 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
3569 | *p++ = '/'; |
3570 | strcpy (p, "gdb.ini"); | |
3571 | if (access (oldini, 0) == 0) | |
3572 | { | |
3573 | int len = strlen (oldini); | |
1270fac6 | 3574 | char *newini = (char *) alloca (len + 2); |
08850b56 | 3575 | |
1270fac6 | 3576 | xsnprintf (newini, len + 2, "%.*s.gdbinit", |
08850b56 | 3577 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 3578 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
3579 | } |
3580 | } | |
3581 | } | |
33605d39 | 3582 | |
2b008701 | 3583 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 3584 | these functions could not be found. */ |
2b008701 CF |
3585 | static BOOL WINAPI |
3586 | bad_DebugActiveProcessStop (DWORD w) | |
3587 | { | |
3588 | return FALSE; | |
3589 | } | |
3590 | static BOOL WINAPI | |
3591 | bad_DebugBreakProcess (HANDLE w) | |
3592 | { | |
3593 | return FALSE; | |
3594 | } | |
3595 | static BOOL WINAPI | |
3596 | bad_DebugSetProcessKillOnExit (BOOL w) | |
3597 | { | |
3598 | return FALSE; | |
3599 | } | |
3600 | static BOOL WINAPI | |
3601 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
3602 | { | |
3603 | return FALSE; | |
3604 | } | |
b3c613f2 CF |
3605 | |
3606 | #ifdef __USEWIDE | |
2b008701 | 3607 | static DWORD WINAPI |
b3c613f2 | 3608 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
3609 | { |
3610 | return 0; | |
3611 | } | |
d0d0ab16 CV |
3612 | #else |
3613 | static DWORD WINAPI | |
b3c613f2 | 3614 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
3615 | { |
3616 | return 0; | |
3617 | } | |
3618 | #endif | |
b3c613f2 | 3619 | |
2b008701 CF |
3620 | static BOOL WINAPI |
3621 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
3622 | { | |
3623 | return FALSE; | |
3624 | } | |
3625 | ||
418c6cb3 CF |
3626 | static BOOL WINAPI |
3627 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
3628 | { | |
3629 | return FALSE; | |
3630 | } | |
3631 | ||
cd44747c PM |
3632 | static BOOL WINAPI |
3633 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
3634 | { | |
3635 | f->nFont = 0; | |
3636 | return 1; | |
3637 | } | |
3638 | static COORD WINAPI | |
3639 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
3640 | { | |
3641 | COORD size; | |
3642 | size.X = 8; | |
3643 | size.Y = 12; | |
3644 | return size; | |
3645 | } | |
3646 | ||
2b008701 | 3647 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 3648 | of Windows. */ |
d603d4b3 | 3649 | |
6c265988 | 3650 | void _initialize_loadable (); |
33605d39 | 3651 | void |
6c265988 | 3652 | _initialize_loadable () |
33605d39 | 3653 | { |
2b008701 CF |
3654 | HMODULE hm = NULL; |
3655 | ||
43499ea3 PA |
3656 | #define GPA(m, func) \ |
3657 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
3658 | ||
2b008701 CF |
3659 | hm = LoadLibrary ("kernel32.dll"); |
3660 | if (hm) | |
33605d39 | 3661 | { |
43499ea3 PA |
3662 | GPA (hm, DebugActiveProcessStop); |
3663 | GPA (hm, DebugBreakProcess); | |
3664 | GPA (hm, DebugSetProcessKillOnExit); | |
3665 | GPA (hm, GetConsoleFontSize); | |
3666 | GPA (hm, DebugActiveProcessStop); | |
3667 | GPA (hm, GetCurrentConsoleFont); | |
46f9f931 HD |
3668 | #ifdef __x86_64__ |
3669 | GPA (hm, Wow64SuspendThread); | |
3670 | GPA (hm, Wow64GetThreadContext); | |
3671 | GPA (hm, Wow64SetThreadContext); | |
3672 | GPA (hm, Wow64GetThreadSelectorEntry); | |
3673 | #endif | |
2b008701 | 3674 | } |
33605d39 | 3675 | |
2b008701 | 3676 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 3677 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
3678 | if (!DebugBreakProcess) |
3679 | DebugBreakProcess = bad_DebugBreakProcess; | |
3680 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 3681 | { |
b3c613f2 CF |
3682 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
3683 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 3684 | } |
cd44747c PM |
3685 | if (!GetConsoleFontSize) |
3686 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
3687 | if (!GetCurrentConsoleFont) | |
3688 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 3689 | |
2b008701 | 3690 | /* Load optional functions used for retrieving filename information |
581e13c1 | 3691 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
3692 | hm = LoadLibrary ("psapi.dll"); |
3693 | if (hm) | |
3694 | { | |
43499ea3 | 3695 | GPA (hm, EnumProcessModules); |
46f9f931 HD |
3696 | #ifdef __x86_64__ |
3697 | GPA (hm, EnumProcessModulesEx); | |
3698 | #endif | |
43499ea3 | 3699 | GPA (hm, GetModuleInformation); |
aec47d1d JB |
3700 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
3701 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
3702 | } |
3703 | ||
b3c613f2 | 3704 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
3705 | { |
3706 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 3707 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
3708 | EnumProcessModules = bad_EnumProcessModules; |
3709 | GetModuleInformation = bad_GetModuleInformation; | |
3710 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
3711 | /* This will probably fail on Windows 9x/Me. Let the user know |
3712 | that we're missing some functionality. */ | |
3713 | warning(_("\ | |
3714 | cannot automatically find executable file or library to read symbols.\n\ | |
3715 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
3716 | } |
3717 | ||
3718 | hm = LoadLibrary ("advapi32.dll"); | |
3719 | if (hm) | |
3720 | { | |
43499ea3 PA |
3721 | GPA (hm, OpenProcessToken); |
3722 | GPA (hm, LookupPrivilegeValueA); | |
3723 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 3724 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
3725 | else is needed. */ |
3726 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
3727 | || !AdjustTokenPrivileges) | |
b3c613f2 | 3728 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 3729 | } |
43499ea3 PA |
3730 | |
3731 | #undef GPA | |
33605d39 | 3732 | } |