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> |
93366324 | 46 | #include <vector> |
cad9cd60 | 47 | |
0ba1096a | 48 | #include "filenames.h" |
1ef980b9 SC |
49 | #include "symfile.h" |
50 | #include "objfiles.h" | |
92107356 | 51 | #include "gdb_bfd.h" |
de1b3c3d | 52 | #include "gdb_obstack.h" |
fdfa3315 | 53 | #include "gdbthread.h" |
24e60978 | 54 | #include "gdbcmd.h" |
1e37c281 | 55 | #include <unistd.h> |
4646aa9d | 56 | #include "exec.h" |
3ee6f623 | 57 | #include "solist.h" |
3cb8e7f6 | 58 | #include "solib.h" |
de1b3c3d | 59 | #include "xml-support.h" |
463888ab | 60 | #include "inttypes.h" |
24e60978 | 61 | |
6c7de422 MK |
62 | #include "i386-tdep.h" |
63 | #include "i387-tdep.h" | |
64 | ||
31b060a2 CF |
65 | #include "windows-tdep.h" |
66 | #include "windows-nat.h" | |
df7e5265 | 67 | #include "x86-nat.h" |
ecc13e53 | 68 | #include "complaints.h" |
51a9c8c5 | 69 | #include "inf-child.h" |
268a13a5 TT |
70 | #include "gdbsupport/gdb_tilde_expand.h" |
71 | #include "gdbsupport/pathstuff.h" | |
559e7e50 | 72 | #include "gdbsupport/gdb_wait.h" |
ae1f8880 | 73 | #include "nat/windows-nat.h" |
de1b3c3d | 74 | |
46f9f931 HD |
75 | #define STATUS_WX86_BREAKPOINT 0x4000001F |
76 | #define STATUS_WX86_SINGLE_STEP 0x4000001E | |
77 | ||
418c6cb3 | 78 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
79 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
80 | #define DebugBreakProcess dyn_DebugBreakProcess | |
81 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
82 | #define EnumProcessModules dyn_EnumProcessModules | |
46f9f931 | 83 | #define EnumProcessModulesEx dyn_EnumProcessModulesEx |
2b008701 | 84 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
85 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
86 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
87 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
88 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
46f9f931 HD |
89 | #define Wow64SuspendThread dyn_Wow64SuspendThread |
90 | #define Wow64GetThreadContext dyn_Wow64GetThreadContext | |
91 | #define Wow64SetThreadContext dyn_Wow64SetThreadContext | |
92 | #define Wow64GetThreadSelectorEntry dyn_Wow64GetThreadSelectorEntry | |
2b008701 | 93 | |
43499ea3 PA |
94 | typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL, |
95 | PTOKEN_PRIVILEGES, | |
96 | DWORD, PTOKEN_PRIVILEGES, | |
97 | PDWORD); | |
98 | static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges; | |
99 | ||
100 | typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD); | |
101 | static DebugActiveProcessStop_ftype *DebugActiveProcessStop; | |
102 | ||
103 | typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE); | |
104 | static DebugBreakProcess_ftype *DebugBreakProcess; | |
105 | ||
106 | typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL); | |
107 | static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit; | |
108 | ||
109 | typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD, | |
110 | LPDWORD); | |
111 | static EnumProcessModules_ftype *EnumProcessModules; | |
112 | ||
46f9f931 HD |
113 | #ifdef __x86_64__ |
114 | typedef BOOL WINAPI (EnumProcessModulesEx_ftype) (HANDLE, HMODULE *, DWORD, | |
115 | LPDWORD, DWORD); | |
116 | static EnumProcessModulesEx_ftype *EnumProcessModulesEx; | |
117 | #endif | |
118 | ||
43499ea3 PA |
119 | typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE, |
120 | LPMODULEINFO, DWORD); | |
121 | static GetModuleInformation_ftype *GetModuleInformation; | |
122 | ||
123 | typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID); | |
124 | static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA; | |
125 | ||
126 | typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE); | |
127 | static OpenProcessToken_ftype *OpenProcessToken; | |
128 | ||
129 | typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL, | |
130 | CONSOLE_FONT_INFO *); | |
131 | static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont; | |
132 | ||
133 | typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD); | |
134 | static GetConsoleFontSize_ftype *GetConsoleFontSize; | |
2b008701 | 135 | |
46f9f931 HD |
136 | #ifdef __x86_64__ |
137 | typedef DWORD WINAPI (Wow64SuspendThread_ftype) (HANDLE); | |
138 | static Wow64SuspendThread_ftype *Wow64SuspendThread; | |
139 | ||
140 | typedef BOOL WINAPI (Wow64GetThreadContext_ftype) (HANDLE, PWOW64_CONTEXT); | |
141 | static Wow64GetThreadContext_ftype *Wow64GetThreadContext; | |
142 | ||
143 | typedef BOOL WINAPI (Wow64SetThreadContext_ftype) (HANDLE, | |
144 | const WOW64_CONTEXT *); | |
145 | static Wow64SetThreadContext_ftype *Wow64SetThreadContext; | |
146 | ||
147 | typedef BOOL WINAPI (Wow64GetThreadSelectorEntry_ftype) (HANDLE, DWORD, | |
148 | PLDT_ENTRY); | |
149 | static Wow64GetThreadSelectorEntry_ftype *Wow64GetThreadSelectorEntry; | |
150 | #endif | |
151 | ||
b3c613f2 CF |
152 | #undef STARTUPINFO |
153 | #undef CreateProcess | |
154 | #undef GetModuleFileNameEx | |
155 | ||
156 | #ifndef __CYGWIN__ | |
157 | # define __PMAX (MAX_PATH + 1) | |
43499ea3 PA |
158 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD); |
159 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
160 | # define STARTUPINFO STARTUPINFOA |
161 | # define CreateProcess CreateProcessA | |
162 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
163 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
164 | #else | |
165 | # define __PMAX PATH_MAX | |
581e13c1 | 166 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
167 | static CORE_ADDR cygwin_load_start; |
168 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
169 | # define __USEWIDE |
170 | typedef wchar_t cygwin_buf_t; | |
43499ea3 PA |
171 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, |
172 | LPWSTR, DWORD); | |
173 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
174 | # define STARTUPINFO STARTUPINFOW |
175 | # define CreateProcess CreateProcessW | |
176 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
177 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 178 | #endif |
a244bdca | 179 | |
581e13c1 MS |
180 | static int have_saved_context; /* True if we've saved context from a |
181 | cygwin signal. */ | |
15766370 | 182 | #ifdef __CYGWIN__ |
85102364 | 183 | static CONTEXT saved_context; /* Contains the saved context from a |
581e13c1 | 184 | cygwin signal. */ |
15766370 | 185 | #endif |
a244bdca | 186 | |
0714f9bf SS |
187 | /* If we're not using the old Cygwin header file set, define the |
188 | following which never should have been in the generic Win32 API | |
581e13c1 | 189 | headers in the first place since they were our own invention... */ |
0714f9bf | 190 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 191 | enum |
8e860359 CF |
192 | { |
193 | FLAG_TRACE_BIT = 0x100, | |
8e860359 | 194 | }; |
0714f9bf SS |
195 | #endif |
196 | ||
5851ab76 JB |
197 | #ifndef CONTEXT_EXTENDED_REGISTERS |
198 | /* This macro is only defined on ia32. It only makes sense on this target, | |
199 | so define it as zero if not already defined. */ | |
200 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
201 | #endif | |
202 | ||
f0666312 JT |
203 | #define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \ |
204 | | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \ | |
205 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 206 | |
41b4aadc | 207 | static uintptr_t dr[8]; |
87a45c96 CF |
208 | static int debug_registers_changed; |
209 | static int debug_registers_used; | |
16d905e2 CF |
210 | |
211 | static int windows_initialization_done; | |
6537bb24 | 212 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 213 | |
24cdb46e РИ |
214 | /* The exception thrown by a program to tell the debugger the name of |
215 | a thread. The exception record contains an ID of a thread and a | |
216 | name to give it. This exception has no documented name, but MSDN | |
217 | dubs it "MS_VC_EXCEPTION" in one code example. */ | |
218 | #define MS_VC_EXCEPTION 0x406d1388 | |
219 | ||
220 | typedef enum | |
221 | { | |
222 | HANDLE_EXCEPTION_UNHANDLED = 0, | |
223 | HANDLE_EXCEPTION_HANDLED, | |
224 | HANDLE_EXCEPTION_IGNORED | |
225 | } handle_exception_result; | |
226 | ||
3cee93ac | 227 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 228 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
229 | #ifndef _CYGWIN_SIGNAL_STRING |
230 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
231 | #endif | |
3cee93ac | 232 | |
29fe111d | 233 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 234 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
235 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
236 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
237 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 238 | |
9bb9e8ad PM |
239 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
240 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 241 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 242 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 243 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 244 | |
a493e3e2 | 245 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
581e13c1 | 246 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 247 | |
93366324 | 248 | static std::vector<windows_thread_info *> thread_list; |
24e60978 | 249 | |
581e13c1 | 250 | /* The process and thread handles for the above context. */ |
24e60978 | 251 | |
3cee93ac CF |
252 | static DEBUG_EVENT current_event; /* The current debug event from |
253 | WaitForDebugEvent */ | |
254 | static HANDLE current_process_handle; /* Currently executing process */ | |
876d1cd7 | 255 | static windows_thread_info *current_thread; /* Info on currently selected thread */ |
7928d571 | 256 | static EXCEPTION_RECORD siginfo_er; /* Contents of $_siginfo */ |
24e60978 | 257 | |
581e13c1 | 258 | /* Counts of things. */ |
24e60978 SC |
259 | static int exception_count = 0; |
260 | static int event_count = 0; | |
dfe7f3ac | 261 | static int saw_create; |
bf25528d | 262 | static int open_process_used = 0; |
46f9f931 HD |
263 | #ifdef __x86_64__ |
264 | static bool wow64_process = false; | |
265 | static bool ignore_first_breakpoint = false; | |
266 | #endif | |
24e60978 | 267 | |
581e13c1 | 268 | /* User options. */ |
491144b5 | 269 | static bool new_console = false; |
10325bc5 | 270 | #ifdef __CYGWIN__ |
491144b5 | 271 | static bool cygwin_exceptions = false; |
10325bc5 | 272 | #endif |
491144b5 CB |
273 | static bool new_group = true; |
274 | static bool debug_exec = false; /* show execution */ | |
275 | static bool debug_events = false; /* show events from kernel */ | |
276 | static bool debug_memory = false; /* show target memory accesses */ | |
277 | static bool debug_exceptions = false; /* show target exceptions */ | |
278 | static bool useshell = false; /* use shell for subprocesses */ | |
dfe7f3ac | 279 | |
7e63b4e4 | 280 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 281 | in the windows exception context vector. |
24e60978 | 282 | |
3cee93ac | 283 | It also contains the bit mask needed to load the register in question. |
24e60978 | 284 | |
7e63b4e4 JB |
285 | The contents of this table can only be computed by the units |
286 | that provide CPU-specific support for Windows native debugging. | |
287 | These units should set the table by calling | |
dc05df57 | 288 | windows_set_context_register_offsets. |
7e63b4e4 | 289 | |
24e60978 SC |
290 | One day we could read a reg, we could inspect the context we |
291 | already have loaded, if it doesn't have the bit set that we need, | |
292 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 293 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
294 | write a register, first we have to ensure that the context contains |
295 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 296 | out bit. */ |
24e60978 | 297 | |
7e63b4e4 | 298 | static const int *mappings; |
d3a09475 | 299 | |
d40dc7a8 JB |
300 | /* The function to use in order to determine whether a register is |
301 | a segment register or not. */ | |
302 | static segment_register_p_ftype *segment_register_p; | |
303 | ||
73c13fe6 TT |
304 | /* See windows_nat_target::resume to understand why this is commented |
305 | out. */ | |
306 | #if 0 | |
24e60978 | 307 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 308 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
309 | |
310 | struct xlate_exception | |
311 | { | |
73c13fe6 | 312 | DWORD them; |
2ea28649 | 313 | enum gdb_signal us; |
24e60978 SC |
314 | }; |
315 | ||
73c13fe6 | 316 | static const struct xlate_exception xlate[] = |
24e60978 | 317 | { |
a493e3e2 PA |
318 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
319 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
320 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
321 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
322 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
73c13fe6 TT |
323 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE} |
324 | }; | |
24e60978 | 325 | |
73c13fe6 | 326 | #endif /* 0 */ |
f6ac5f3d PA |
327 | |
328 | struct windows_nat_target final : public x86_nat_target<inf_child_target> | |
329 | { | |
330 | void close () override; | |
331 | ||
332 | void attach (const char *, int) override; | |
333 | ||
334 | bool attach_no_wait () override | |
335 | { return true; } | |
336 | ||
337 | void detach (inferior *, int) override; | |
338 | ||
339 | void resume (ptid_t, int , enum gdb_signal) override; | |
340 | ||
341 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
342 | ||
343 | void fetch_registers (struct regcache *, int) override; | |
344 | void store_registers (struct regcache *, int) override; | |
345 | ||
346 | enum target_xfer_status xfer_partial (enum target_object object, | |
347 | const char *annex, | |
348 | gdb_byte *readbuf, | |
349 | const gdb_byte *writebuf, | |
350 | ULONGEST offset, ULONGEST len, | |
351 | ULONGEST *xfered_len) override; | |
352 | ||
353 | void files_info () override; | |
354 | ||
355 | void kill () override; | |
356 | ||
357 | void create_inferior (const char *, const std::string &, | |
358 | char **, int) override; | |
359 | ||
360 | void mourn_inferior () override; | |
361 | ||
57810aa7 | 362 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d | 363 | |
a068643d | 364 | std::string pid_to_str (ptid_t) override; |
f6ac5f3d PA |
365 | |
366 | void interrupt () override; | |
367 | ||
368 | char *pid_to_exec_file (int pid) override; | |
369 | ||
370 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
371 | ||
57810aa7 | 372 | bool get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; |
f6ac5f3d PA |
373 | |
374 | const char *thread_name (struct thread_info *) override; | |
5b6d1e4f PA |
375 | |
376 | int get_windows_debug_event (int pid, struct target_waitstatus *ourstatus); | |
f6ac5f3d PA |
377 | }; |
378 | ||
379 | static windows_nat_target the_windows_nat_target; | |
380 | ||
7e63b4e4 JB |
381 | /* Set the MAPPINGS static global to OFFSETS. |
382 | See the description of MAPPINGS for more details. */ | |
383 | ||
46f9f931 | 384 | static void |
dc05df57 | 385 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
386 | { |
387 | mappings = offsets; | |
388 | } | |
389 | ||
46f9f931 HD |
390 | /* Set the function that should be used by this module to determine |
391 | whether a given register is a segment register or not. */ | |
d40dc7a8 | 392 | |
46f9f931 | 393 | static void |
d40dc7a8 JB |
394 | windows_set_segment_register_p (segment_register_p_ftype *fun) |
395 | { | |
396 | segment_register_p = fun; | |
397 | } | |
398 | ||
fa4ba8da PM |
399 | static void |
400 | check (BOOL ok, const char *file, int line) | |
401 | { | |
402 | if (!ok) | |
d50a0ce2 CV |
403 | printf_filtered ("error return %s:%d was %u\n", file, line, |
404 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
405 | } |
406 | ||
6537bb24 PA |
407 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
408 | then also retrieve the context for this thread. If GET_CONTEXT is | |
409 | negative, then don't suspend the thread. */ | |
876d1cd7 | 410 | static windows_thread_info * |
3cee93ac | 411 | thread_rec (DWORD id, int get_context) |
24e60978 | 412 | { |
93366324 | 413 | for (windows_thread_info *th : thread_list) |
55a1e039 | 414 | if (th->tid == id) |
3cee93ac | 415 | { |
6537bb24 | 416 | if (!th->suspended && get_context) |
3cee93ac | 417 | { |
8a892701 | 418 | if (get_context > 0 && id != current_event.dwThreadId) |
98a03287 | 419 | th->suspend (); |
3cee93ac | 420 | else if (get_context < 0) |
6537bb24 | 421 | th->suspended = -1; |
62fe396b | 422 | th->reload_context = true; |
3cee93ac CF |
423 | } |
424 | return th; | |
425 | } | |
426 | ||
427 | return NULL; | |
428 | } | |
429 | ||
c559d709 JB |
430 | /* Add a thread to the thread list. |
431 | ||
432 | PTID is the ptid of the thread to be added. | |
433 | H is its Windows handle. | |
434 | TLB is its thread local base. | |
435 | MAIN_THREAD_P should be true if the thread to be added is | |
436 | the main thread, false otherwise. */ | |
437 | ||
876d1cd7 | 438 | static windows_thread_info * |
c559d709 | 439 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb, bool main_thread_p) |
3cee93ac | 440 | { |
876d1cd7 | 441 | windows_thread_info *th; |
2dc38344 PA |
442 | DWORD id; |
443 | ||
7c7411bc | 444 | gdb_assert (ptid.lwp () != 0); |
2dc38344 | 445 | |
7c7411bc | 446 | id = ptid.lwp (); |
3cee93ac CF |
447 | |
448 | if ((th = thread_rec (id, FALSE))) | |
449 | return th; | |
450 | ||
e9534bd2 | 451 | CORE_ADDR base = (CORE_ADDR) (uintptr_t) tlb; |
46f9f931 HD |
452 | #ifdef __x86_64__ |
453 | /* For WOW64 processes, this is actually the pointer to the 64bit TIB, | |
454 | and the 32bit TIB is exactly 2 pages after it. */ | |
455 | if (wow64_process) | |
e9534bd2 | 456 | base += 0x2000; |
46f9f931 | 457 | #endif |
e9534bd2 | 458 | th = new windows_thread_info (id, h, base); |
93366324 | 459 | thread_list.push_back (th); |
c559d709 JB |
460 | |
461 | /* Add this new thread to the list of threads. | |
462 | ||
463 | To be consistent with what's done on other platforms, we add | |
464 | the main thread silently (in reality, this thread is really | |
465 | more of a process to the user than a thread). */ | |
466 | if (main_thread_p) | |
5b6d1e4f | 467 | add_thread_silent (&the_windows_nat_target, ptid); |
c559d709 | 468 | else |
5b6d1e4f | 469 | add_thread (&the_windows_nat_target, ptid); |
c559d709 | 470 | |
2dc38344 | 471 | /* Set the debug registers for the new thread if they are used. */ |
fa4ba8da PM |
472 | if (debug_registers_used) |
473 | { | |
46f9f931 HD |
474 | #ifdef __x86_64__ |
475 | if (wow64_process) | |
476 | { | |
477 | /* Only change the value of the debug registers. */ | |
478 | th->wow64_context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
479 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
480 | th->wow64_context.Dr0 = dr[0]; | |
481 | th->wow64_context.Dr1 = dr[1]; | |
482 | th->wow64_context.Dr2 = dr[2]; | |
483 | th->wow64_context.Dr3 = dr[3]; | |
484 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
485 | th->wow64_context.Dr7 = dr[7]; | |
486 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
487 | th->wow64_context.ContextFlags = 0; | |
488 | } | |
489 | else | |
490 | #endif | |
491 | { | |
492 | /* Only change the value of the debug registers. */ | |
493 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
494 | CHECK (GetThreadContext (th->h, &th->context)); | |
495 | th->context.Dr0 = dr[0]; | |
496 | th->context.Dr1 = dr[1]; | |
497 | th->context.Dr2 = dr[2]; | |
498 | th->context.Dr3 = dr[3]; | |
499 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
500 | th->context.Dr7 = dr[7]; | |
501 | CHECK (SetThreadContext (th->h, &th->context)); | |
502 | th->context.ContextFlags = 0; | |
503 | } | |
fa4ba8da | 504 | } |
3cee93ac | 505 | return th; |
24e60978 SC |
506 | } |
507 | ||
26c4b26f | 508 | /* Clear out any old thread list and reinitialize it to a |
581e13c1 | 509 | pristine state. */ |
24e60978 | 510 | static void |
dc05df57 | 511 | windows_init_thread_list (void) |
24e60978 | 512 | { |
dc05df57 | 513 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac | 514 | init_thread_list (); |
93366324 TT |
515 | |
516 | for (windows_thread_info *here : thread_list) | |
e9534bd2 | 517 | delete here; |
93366324 TT |
518 | |
519 | thread_list.clear (); | |
3cee93ac CF |
520 | } |
521 | ||
c559d709 JB |
522 | /* Delete a thread from the list of threads. |
523 | ||
524 | PTID is the ptid of the thread to be deleted. | |
525 | EXIT_CODE is the thread's exit code. | |
526 | MAIN_THREAD_P should be true if the thread to be deleted is | |
527 | the main thread, false otherwise. */ | |
528 | ||
3cee93ac | 529 | static void |
c559d709 | 530 | windows_delete_thread (ptid_t ptid, DWORD exit_code, bool main_thread_p) |
3cee93ac | 531 | { |
2dc38344 PA |
532 | DWORD id; |
533 | ||
7c7411bc | 534 | gdb_assert (ptid.lwp () != 0); |
2dc38344 | 535 | |
7c7411bc | 536 | id = ptid.lwp (); |
3cee93ac | 537 | |
c559d709 JB |
538 | /* Emit a notification about the thread being deleted. |
539 | ||
540 | Note that no notification was printed when the main thread | |
541 | was created, and thus, unless in verbose mode, we should be | |
85102364 | 542 | symmetrical, and avoid that notification for the main thread |
c559d709 JB |
543 | here as well. */ |
544 | ||
3cee93ac | 545 | if (info_verbose) |
a068643d | 546 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid).c_str ()); |
c559d709 | 547 | else if (print_thread_events && !main_thread_p) |
e0ea48a0 | 548 | printf_unfiltered (_("[%s exited with code %u]\n"), |
a068643d TT |
549 | target_pid_to_str (ptid).c_str (), |
550 | (unsigned) exit_code); | |
c559d709 | 551 | |
5b6d1e4f | 552 | delete_thread (find_thread_ptid (&the_windows_nat_target, ptid)); |
3cee93ac | 553 | |
93366324 TT |
554 | auto iter = std::find_if (thread_list.begin (), thread_list.end (), |
555 | [=] (windows_thread_info *th) | |
556 | { | |
55a1e039 | 557 | return th->tid == id; |
93366324 | 558 | }); |
3cee93ac | 559 | |
93366324 | 560 | if (iter != thread_list.end ()) |
24e60978 | 561 | { |
e9534bd2 | 562 | delete *iter; |
93366324 | 563 | thread_list.erase (iter); |
24e60978 SC |
564 | } |
565 | } | |
566 | ||
9a325b7b JB |
567 | /* Fetches register number R from the given windows_thread_info, |
568 | and supplies its value to the given regcache. | |
569 | ||
570 | This function assumes that R is non-negative. A failed assertion | |
571 | is raised if that is not true. | |
572 | ||
573 | This function assumes that TH->RELOAD_CONTEXT is not set, meaning | |
574 | that the windows_thread_info has an up-to-date context. A failed | |
575 | assertion is raised if that assumption is violated. */ | |
576 | ||
3cee93ac | 577 | static void |
9a325b7b JB |
578 | windows_fetch_one_register (struct regcache *regcache, |
579 | windows_thread_info *th, int r) | |
24e60978 | 580 | { |
9a325b7b JB |
581 | gdb_assert (r >= 0); |
582 | gdb_assert (!th->reload_context); | |
583 | ||
46f9f931 HD |
584 | char *context_ptr = (char *) &th->context; |
585 | #ifdef __x86_64__ | |
586 | if (wow64_process) | |
587 | context_ptr = (char *) &th->wow64_context; | |
588 | #endif | |
589 | ||
590 | char *context_offset = context_ptr + mappings[r]; | |
ac7936df | 591 | struct gdbarch *gdbarch = regcache->arch (); |
20a6ec49 | 592 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
9a325b7b JB |
593 | |
594 | if (r == I387_FISEG_REGNUM (tdep)) | |
595 | { | |
596 | long l = *((long *) context_offset) & 0xffff; | |
597 | regcache->raw_supply (r, (char *) &l); | |
598 | } | |
599 | else if (r == I387_FOP_REGNUM (tdep)) | |
600 | { | |
601 | long l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); | |
602 | regcache->raw_supply (r, (char *) &l); | |
603 | } | |
604 | else if (segment_register_p (r)) | |
605 | { | |
606 | /* GDB treats segment registers as 32bit registers, but they are | |
607 | in fact only 16 bits long. Make sure we do not read extra | |
608 | bits from our source buffer. */ | |
609 | long l = *((long *) context_offset) & 0xffff; | |
610 | regcache->raw_supply (r, (char *) &l); | |
611 | } | |
612 | else | |
613 | regcache->raw_supply (r, context_offset); | |
614 | } | |
615 | ||
616 | void | |
617 | windows_nat_target::fetch_registers (struct regcache *regcache, int r) | |
618 | { | |
7c7411bc | 619 | DWORD tid = regcache->ptid ().lwp (); |
96b49c5e | 620 | windows_thread_info *th = thread_rec (tid, TRUE); |
9a325b7b JB |
621 | |
622 | /* Check if TH exists. Windows sometimes uses a non-existent | |
623 | thread id in its events. */ | |
624 | if (th == NULL) | |
625 | return; | |
6c7de422 | 626 | |
3de88e9a | 627 | if (th->reload_context) |
3ade5333 | 628 | { |
f20c58f5 | 629 | #ifdef __CYGWIN__ |
a244bdca CF |
630 | if (have_saved_context) |
631 | { | |
581e13c1 MS |
632 | /* Lie about where the program actually is stopped since |
633 | cygwin has informed us that we should consider the signal | |
634 | to have occurred at another location which is stored in | |
635 | "saved_context. */ | |
3de88e9a | 636 | memcpy (&th->context, &saved_context, |
581e13c1 | 637 | __COPY_CONTEXT_SIZE); |
a244bdca CF |
638 | have_saved_context = 0; |
639 | } | |
640 | else | |
46f9f931 HD |
641 | #endif |
642 | #ifdef __x86_64__ | |
643 | if (wow64_process) | |
644 | { | |
645 | th->wow64_context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
646 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
647 | /* Copy dr values from that thread. | |
648 | But only if there were not modified since last stop. | |
649 | PR gdb/2388 */ | |
650 | if (!debug_registers_changed) | |
651 | { | |
652 | dr[0] = th->wow64_context.Dr0; | |
653 | dr[1] = th->wow64_context.Dr1; | |
654 | dr[2] = th->wow64_context.Dr2; | |
655 | dr[3] = th->wow64_context.Dr3; | |
656 | dr[6] = th->wow64_context.Dr6; | |
657 | dr[7] = th->wow64_context.Dr7; | |
658 | } | |
659 | } | |
660 | else | |
cb832706 | 661 | #endif |
a244bdca | 662 | { |
a244bdca | 663 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 664 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 665 | /* Copy dr values from that thread. |
581e13c1 MS |
666 | But only if there were not modified since last stop. |
667 | PR gdb/2388 */ | |
88616312 PM |
668 | if (!debug_registers_changed) |
669 | { | |
670 | dr[0] = th->context.Dr0; | |
671 | dr[1] = th->context.Dr1; | |
672 | dr[2] = th->context.Dr2; | |
673 | dr[3] = th->context.Dr3; | |
674 | dr[6] = th->context.Dr6; | |
675 | dr[7] = th->context.Dr7; | |
676 | } | |
a244bdca | 677 | } |
62fe396b | 678 | th->reload_context = false; |
3ade5333 CF |
679 | } |
680 | ||
9a325b7b JB |
681 | if (r < 0) |
682 | for (r = 0; r < gdbarch_num_regs (regcache->arch()); r++) | |
683 | windows_fetch_one_register (regcache, th, r); | |
3cee93ac | 684 | else |
9a325b7b | 685 | windows_fetch_one_register (regcache, th, r); |
3cee93ac CF |
686 | } |
687 | ||
9a325b7b JB |
688 | /* Collect the register number R from the given regcache, and store |
689 | its value into the corresponding area of the given thread's context. | |
3de88e9a | 690 | |
9a325b7b JB |
691 | This function assumes that R is non-negative. A failed assertion |
692 | assertion is raised if that is not true. */ | |
3cee93ac CF |
693 | |
694 | static void | |
9a325b7b JB |
695 | windows_store_one_register (const struct regcache *regcache, |
696 | windows_thread_info *th, int r) | |
3cee93ac | 697 | { |
9a325b7b JB |
698 | gdb_assert (r >= 0); |
699 | ||
46f9f931 HD |
700 | char *context_ptr = (char *) &th->context; |
701 | #ifdef __x86_64__ | |
702 | if (wow64_process) | |
703 | context_ptr = (char *) &th->wow64_context; | |
704 | #endif | |
705 | ||
706 | regcache->raw_collect (r, context_ptr + mappings[r]); | |
24e60978 SC |
707 | } |
708 | ||
3de88e9a SM |
709 | /* Store a new register value into the context of the thread tied to |
710 | REGCACHE. */ | |
f6ac5f3d PA |
711 | |
712 | void | |
713 | windows_nat_target::store_registers (struct regcache *regcache, int r) | |
3cee93ac | 714 | { |
7c7411bc | 715 | DWORD tid = regcache->ptid ().lwp (); |
96b49c5e | 716 | windows_thread_info *th = thread_rec (tid, TRUE); |
3de88e9a SM |
717 | |
718 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 719 | thread id in its events. */ |
9a325b7b JB |
720 | if (th == NULL) |
721 | return; | |
722 | ||
723 | if (r < 0) | |
724 | for (r = 0; r < gdbarch_num_regs (regcache->arch ()); r++) | |
725 | windows_store_one_register (regcache, th, r); | |
726 | else | |
727 | windows_store_one_register (regcache, th, r); | |
3cee93ac | 728 | } |
24e60978 | 729 | |
581e13c1 | 730 | /* Maintain a linked list of "so" information. */ |
d0e449a1 | 731 | struct lm_info_windows : public lm_info_base |
02e423b9 | 732 | { |
f8fdb78e | 733 | LPVOID load_addr = 0; |
c162ed3e | 734 | CORE_ADDR text_offset = 0; |
3ee6f623 CF |
735 | }; |
736 | ||
737 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 738 | |
de1b3c3d | 739 | static struct so_list * |
dc05df57 | 740 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 741 | { |
3ee6f623 | 742 | struct so_list *so; |
d0d0ab16 CV |
743 | char *p; |
744 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
745 | char buf[__PMAX]; |
746 | char cwd[__PMAX]; | |
3f8ad85b CF |
747 | WIN32_FIND_DATA w32_fd; |
748 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 749 | |
6badb179 CF |
750 | if (h == INVALID_HANDLE_VALUE) |
751 | strcpy (buf, name); | |
752 | else | |
3f8ad85b | 753 | { |
c914e0cc CF |
754 | FindClose (h); |
755 | strcpy (buf, name); | |
756 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
757 | { | |
758 | p = strrchr (buf, '\\'); | |
759 | if (p) | |
760 | p[1] = '\0'; | |
761 | SetCurrentDirectory (buf); | |
762 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
763 | SetCurrentDirectory (cwd); | |
764 | } | |
3f8ad85b | 765 | } |
3ee6f623 CF |
766 | if (strcasecmp (buf, "ntdll.dll") == 0) |
767 | { | |
768 | GetSystemDirectory (buf, sizeof (buf)); | |
769 | strcat (buf, "\\ntdll.dll"); | |
770 | } | |
d0d0ab16 | 771 | #else |
b3c613f2 | 772 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 773 | |
b3c613f2 | 774 | buf[0] = 0; |
d0d0ab16 CV |
775 | if (access (name, F_OK) != 0) |
776 | { | |
777 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 778 | #ifdef __USEWIDE |
d0d0ab16 CV |
779 | { |
780 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
781 | wcscat (buf, L"\\ntdll.dll"); | |
782 | } | |
b3c613f2 CF |
783 | #else |
784 | { | |
785 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
786 | strcat (buf, "\\ntdll.dll"); | |
787 | } | |
788 | #endif | |
d0d0ab16 CV |
789 | } |
790 | #endif | |
41bf6aca | 791 | so = XCNEW (struct so_list); |
f8fdb78e | 792 | lm_info_windows *li = new lm_info_windows; |
d0e449a1 SM |
793 | so->lm_info = li; |
794 | li->load_addr = load_addr; | |
de1b3c3d | 795 | strcpy (so->so_original_name, name); |
10325bc5 PA |
796 | #ifndef __CYGWIN__ |
797 | strcpy (so->so_name, buf); | |
798 | #else | |
d0d0ab16 CV |
799 | if (buf[0]) |
800 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
801 | SO_NAME_MAX_PATH_SIZE); | |
802 | else | |
803 | { | |
60c5c021 | 804 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
805 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
806 | { | |
807 | strcpy (so->so_name, rname); | |
808 | free (rname); | |
809 | } | |
810 | else | |
811 | error (_("dll path too long")); | |
812 | } | |
de1b3c3d PA |
813 | /* Record cygwin1.dll .text start/end. */ |
814 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
815 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
816 | { | |
de1b3c3d | 817 | asection *text = NULL; |
8e860359 | 818 | |
192b62ce | 819 | gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386", -1)); |
a244bdca | 820 | |
192b62ce | 821 | if (abfd == NULL) |
de1b3c3d PA |
822 | return so; |
823 | ||
192b62ce TT |
824 | if (bfd_check_format (abfd.get (), bfd_object)) |
825 | text = bfd_get_section_by_name (abfd.get (), ".text"); | |
de1b3c3d PA |
826 | |
827 | if (!text) | |
192b62ce | 828 | return so; |
de1b3c3d | 829 | |
7a9dd1b2 | 830 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 831 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
832 | file header and the section alignment. */ |
833 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
834 | load_addr + 0x1000); | |
fd361982 | 835 | cygwin_load_end = cygwin_load_start + bfd_section_size (text); |
de1b3c3d | 836 | } |
10325bc5 | 837 | #endif |
de1b3c3d PA |
838 | |
839 | return so; | |
8e860359 CF |
840 | } |
841 | ||
3ee6f623 | 842 | static char * |
dfe7f3ac CF |
843 | get_image_name (HANDLE h, void *address, int unicode) |
844 | { | |
d0d0ab16 | 845 | #ifdef __CYGWIN__ |
b3c613f2 | 846 | static char buf[__PMAX]; |
d0d0ab16 | 847 | #else |
b3c613f2 | 848 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 849 | #endif |
dfe7f3ac CF |
850 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
851 | char *address_ptr; | |
852 | int len = 0; | |
853 | char b[2]; | |
5732a500 | 854 | SIZE_T done; |
dfe7f3ac CF |
855 | |
856 | /* Attempt to read the name of the dll that was detected. | |
857 | This is documented to work only when actively debugging | |
581e13c1 | 858 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
859 | if (address == NULL) |
860 | return NULL; | |
861 | ||
dfe7f3ac | 862 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
863 | address isn't null. */ |
864 | if (!ReadProcessMemory (h, address, &address_ptr, | |
865 | sizeof (address_ptr), &done) | |
6f17862b | 866 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
867 | return NULL; |
868 | ||
581e13c1 | 869 | /* Find the length of the string. */ |
6f17862b CF |
870 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
871 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
872 | continue; | |
dfe7f3ac CF |
873 | |
874 | if (!unicode) | |
875 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
876 | else | |
877 | { | |
878 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
879 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
880 | &done); | |
d0d0ab16 | 881 | #ifdef __CYGWIN__ |
b3c613f2 | 882 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
883 | #else |
884 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
885 | 0, 0); | |
886 | #endif | |
dfe7f3ac CF |
887 | } |
888 | ||
889 | return buf; | |
890 | } | |
891 | ||
1cd9feab JB |
892 | /* Handle a DLL load event, and return 1. |
893 | ||
894 | This function assumes that this event did not occur during inferior | |
895 | initialization, where their event info may be incomplete (see | |
896 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
897 | on how we handle DLL loading during that phase). */ | |
898 | ||
bf469271 PA |
899 | static void |
900 | handle_load_dll () | |
24e60978 | 901 | { |
3a4b77d8 | 902 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
1cd9feab | 903 | char *dll_name; |
24e60978 | 904 | |
94481b8c JB |
905 | /* Try getting the DLL name via the lpImageName field of the event. |
906 | Note that Microsoft documents this fields as strictly optional, | |
907 | in the sense that it might be NULL. And the first DLL event in | |
908 | particular is explicitly documented as "likely not pass[ed]" | |
909 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
910 | dll_name = get_image_name (current_process_handle, |
911 | event->lpImageName, event->fUnicode); | |
3cee93ac | 912 | if (!dll_name) |
bf469271 | 913 | return; |
3cee93ac | 914 | |
dc05df57 | 915 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 916 | solib_end = solib_end->next; |
450005e7 | 917 | |
d0e449a1 SM |
918 | lm_info_windows *li = (lm_info_windows *) solib_end->lm_info; |
919 | ||
a74ce742 | 920 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
d0e449a1 | 921 | host_address_to_string (li->load_addr))); |
450005e7 CF |
922 | } |
923 | ||
3ee6f623 | 924 | static void |
dc05df57 | 925 | windows_free_so (struct so_list *so) |
3ee6f623 | 926 | { |
f8fdb78e SM |
927 | lm_info_windows *li = (lm_info_windows *) so->lm_info; |
928 | ||
929 | delete li; | |
de1b3c3d | 930 | xfree (so); |
3cb8e7f6 CF |
931 | } |
932 | ||
3be75f87 JB |
933 | /* Handle a DLL unload event. |
934 | Return 1 if successful, or zero otherwise. | |
935 | ||
936 | This function assumes that this event did not occur during inferior | |
937 | initialization, where their event info may be incomplete (see | |
938 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
939 | on how we handle DLL loading during that phase). */ | |
940 | ||
bf469271 PA |
941 | static void |
942 | handle_unload_dll () | |
d3ff4a77 | 943 | { |
d3653bf6 | 944 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 945 | struct so_list *so; |
d3ff4a77 CF |
946 | |
947 | for (so = &solib_start; so->next != NULL; so = so->next) | |
d0e449a1 SM |
948 | { |
949 | lm_info_windows *li_next = (lm_info_windows *) so->next->lm_info; | |
a25cd31f | 950 | |
d0e449a1 SM |
951 | if (li_next->load_addr == lpBaseOfDll) |
952 | { | |
953 | struct so_list *sodel = so->next; | |
7488902c | 954 | |
d0e449a1 SM |
955 | so->next = sodel->next; |
956 | if (!so->next) | |
957 | solib_end = so; | |
958 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); | |
959 | ||
960 | windows_free_so (sodel); | |
bf469271 | 961 | return; |
d0e449a1 SM |
962 | } |
963 | } | |
3929abe9 | 964 | |
ecc13e53 JB |
965 | /* We did not find any DLL that was previously loaded at this address, |
966 | so register a complaint. We do not report an error, because we have | |
967 | observed that this may be happening under some circumstances. For | |
968 | instance, running 32bit applications on x64 Windows causes us to receive | |
969 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
970 | events are apparently caused by the WOW layer, the interface between | |
971 | 32bit and 64bit worlds). */ | |
b98664d3 | 972 | complaint (_("dll starting at %s not found."), |
ecc13e53 | 973 | host_address_to_string (lpBaseOfDll)); |
bf469271 PA |
974 | } |
975 | ||
976 | /* Call FUNC wrapped in a TRY/CATCH that swallows all GDB | |
977 | exceptions. */ | |
d3ff4a77 | 978 | |
bf469271 PA |
979 | static void |
980 | catch_errors (void (*func) ()) | |
981 | { | |
a70b8144 | 982 | try |
bf469271 PA |
983 | { |
984 | func (); | |
985 | } | |
230d2906 | 986 | catch (const gdb_exception &ex) |
bf469271 PA |
987 | { |
988 | exception_print (gdb_stderr, ex); | |
989 | } | |
d3ff4a77 CF |
990 | } |
991 | ||
581e13c1 | 992 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 993 | static void |
dc05df57 | 994 | windows_clear_solib (void) |
450005e7 | 995 | { |
25057eb0 HD |
996 | struct so_list *so; |
997 | ||
998 | for (so = solib_start.next; so; so = solib_start.next) | |
999 | { | |
1000 | solib_start.next = so->next; | |
1001 | windows_free_so (so); | |
1002 | } | |
1003 | ||
450005e7 | 1004 | solib_end = &solib_start; |
450005e7 | 1005 | } |
295732ea | 1006 | |
463888ab | 1007 | static void |
0b39b52e | 1008 | signal_event_command (const char *args, int from_tty) |
463888ab РИ |
1009 | { |
1010 | uintptr_t event_id = 0; | |
1011 | char *endargs = NULL; | |
1012 | ||
1013 | if (args == NULL) | |
1014 | error (_("signal-event requires an argument (integer event id)")); | |
1015 | ||
1016 | event_id = strtoumax (args, &endargs, 10); | |
1017 | ||
1018 | if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || | |
1019 | ((HANDLE) event_id == INVALID_HANDLE_VALUE)) | |
1020 | error (_("Failed to convert `%s' to event id"), args); | |
1021 | ||
1022 | SetEvent ((HANDLE) event_id); | |
1023 | CloseHandle ((HANDLE) event_id); | |
1024 | } | |
1025 | ||
3cee93ac CF |
1026 | /* Handle DEBUG_STRING output from child process. |
1027 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 1028 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
1029 | static int |
1030 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
1031 | { | |
e83e4e24 | 1032 | gdb::unique_xmalloc_ptr<char> s; |
a244bdca | 1033 | int retval = 0; |
3cee93ac CF |
1034 | |
1035 | if (!target_read_string | |
2c647436 | 1036 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
e83e4e24 TT |
1037 | &s, 1024, 0) |
1038 | || !s || !*(s.get ())) | |
a244bdca | 1039 | /* nothing to do */; |
e83e4e24 | 1040 | else if (!startswith (s.get (), _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 1041 | { |
10325bc5 | 1042 | #ifdef __CYGWIN__ |
e83e4e24 | 1043 | if (!startswith (s.get (), "cYg")) |
10325bc5 | 1044 | #endif |
040ea00b | 1045 | { |
e83e4e24 | 1046 | char *p = strchr (s.get (), '\0'); |
040ea00b | 1047 | |
e83e4e24 | 1048 | if (p > s.get () && *--p == '\n') |
040ea00b | 1049 | *p = '\0'; |
e83e4e24 | 1050 | warning (("%s"), s.get ()); |
040ea00b | 1051 | } |
3cee93ac | 1052 | } |
f20c58f5 | 1053 | #ifdef __CYGWIN__ |
d3a09475 | 1054 | else |
3cee93ac | 1055 | { |
581e13c1 MS |
1056 | /* Got a cygwin signal marker. A cygwin signal is followed by |
1057 | the signal number itself and then optionally followed by the | |
1058 | thread id and address to saved context within the DLL. If | |
1059 | these are supplied, then the given thread is assumed to have | |
1060 | issued the signal and the context from the thread is assumed | |
1061 | to be stored at the given address in the inferior. Tell gdb | |
1062 | to treat this like a real signal. */ | |
3cee93ac | 1063 | char *p; |
e83e4e24 | 1064 | int sig = strtol (s.get () + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0ae534d2 | 1065 | gdb_signal gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 1066 | |
0714f9bf SS |
1067 | ourstatus->value.sig = gotasig; |
1068 | if (gotasig) | |
a244bdca CF |
1069 | { |
1070 | LPCVOID x; | |
2c15ef43 | 1071 | SIZE_T n; |
c62fa0e2 | 1072 | |
a244bdca CF |
1073 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
1074 | retval = strtoul (p, &p, 0); | |
1075 | if (!retval) | |
ab4ee614 | 1076 | retval = current_event.dwThreadId; |
40653b35 | 1077 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 1078 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
1079 | &saved_context, |
1080 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
1081 | && n == __COPY_CONTEXT_SIZE) |
1082 | have_saved_context = 1; | |
a244bdca | 1083 | } |
3cee93ac | 1084 | } |
cb832706 | 1085 | #endif |
3cee93ac | 1086 | |
a244bdca | 1087 | return retval; |
3cee93ac | 1088 | } |
24e60978 | 1089 | |
c1748f97 PM |
1090 | static int |
1091 | display_selector (HANDLE thread, DWORD sel) | |
1092 | { | |
1093 | LDT_ENTRY info; | |
46f9f931 HD |
1094 | BOOL ret; |
1095 | #ifdef __x86_64__ | |
1096 | if (wow64_process) | |
1097 | ret = Wow64GetThreadSelectorEntry (thread, sel, &info); | |
1098 | else | |
1099 | #endif | |
1100 | ret = GetThreadSelectorEntry (thread, sel, &info); | |
1101 | if (ret) | |
c1748f97 PM |
1102 | { |
1103 | int base, limit; | |
d50a0ce2 | 1104 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 1105 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
1106 | { |
1107 | puts_filtered ("Segment not present\n"); | |
1108 | return 0; | |
1109 | } | |
c1748f97 PM |
1110 | base = (info.HighWord.Bits.BaseHi << 24) + |
1111 | (info.HighWord.Bits.BaseMid << 16) | |
1112 | + info.BaseLow; | |
1113 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
1114 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 1115 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
1116 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
1117 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 1118 | puts_filtered(" 32-bit "); |
c1748f97 | 1119 | else |
baa93fa6 | 1120 | puts_filtered(" 16-bit "); |
c1748f97 PM |
1121 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1122 | { | |
1123 | case 0: | |
baa93fa6 CF |
1124 | puts_filtered ("Data (Read-Only, Exp-up"); |
1125 | break; | |
c1748f97 | 1126 | case 1: |
baa93fa6 CF |
1127 | puts_filtered ("Data (Read/Write, Exp-up"); |
1128 | break; | |
c1748f97 | 1129 | case 2: |
baa93fa6 CF |
1130 | puts_filtered ("Unused segment ("); |
1131 | break; | |
c1748f97 | 1132 | case 3: |
baa93fa6 CF |
1133 | puts_filtered ("Data (Read/Write, Exp-down"); |
1134 | break; | |
c1748f97 | 1135 | case 4: |
baa93fa6 CF |
1136 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1137 | break; | |
c1748f97 | 1138 | case 5: |
baa93fa6 | 1139 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1140 | break; |
1141 | case 6: | |
baa93fa6 | 1142 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1143 | break; |
1144 | case 7: | |
baa93fa6 | 1145 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1146 | break; |
1147 | default: | |
e432ccf1 JT |
1148 | printf_filtered ("Unknown type 0x%lx", |
1149 | (unsigned long) info.HighWord.Bits.Type); | |
c1748f97 PM |
1150 | } |
1151 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1152 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1153 | puts_filtered (")\n"); |
1154 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1155 | puts_filtered("System selector "); | |
e432ccf1 JT |
1156 | printf_filtered ("Priviledge level = %ld. ", |
1157 | (unsigned long) info.HighWord.Bits.Dpl); | |
c1748f97 | 1158 | if (info.HighWord.Bits.Granularity) |
baa93fa6 | 1159 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1160 | else |
1161 | puts_filtered ("Byte granular.\n"); | |
1162 | return 1; | |
1163 | } | |
1164 | else | |
1165 | { | |
5572ce1f PM |
1166 | DWORD err = GetLastError (); |
1167 | if (err == ERROR_NOT_SUPPORTED) | |
1168 | printf_filtered ("Function not supported\n"); | |
1169 | else | |
d50a0ce2 | 1170 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1171 | return 0; |
1172 | } | |
1173 | } | |
1174 | ||
1175 | static void | |
5fed81ff | 1176 | display_selectors (const char * args, int from_tty) |
c1748f97 PM |
1177 | { |
1178 | if (!current_thread) | |
1179 | { | |
1180 | puts_filtered ("Impossible to display selectors now.\n"); | |
1181 | return; | |
1182 | } | |
1183 | if (!args) | |
1184 | { | |
46f9f931 HD |
1185 | #ifdef __x86_64__ |
1186 | if (wow64_process) | |
1187 | { | |
1188 | puts_filtered ("Selector $cs\n"); | |
1189 | display_selector (current_thread->h, | |
1190 | current_thread->wow64_context.SegCs); | |
1191 | puts_filtered ("Selector $ds\n"); | |
1192 | display_selector (current_thread->h, | |
1193 | current_thread->wow64_context.SegDs); | |
1194 | puts_filtered ("Selector $es\n"); | |
1195 | display_selector (current_thread->h, | |
1196 | current_thread->wow64_context.SegEs); | |
1197 | puts_filtered ("Selector $ss\n"); | |
1198 | display_selector (current_thread->h, | |
1199 | current_thread->wow64_context.SegSs); | |
1200 | puts_filtered ("Selector $fs\n"); | |
1201 | display_selector (current_thread->h, | |
1202 | current_thread->wow64_context.SegFs); | |
1203 | puts_filtered ("Selector $gs\n"); | |
1204 | display_selector (current_thread->h, | |
1205 | current_thread->wow64_context.SegGs); | |
1206 | } | |
1207 | else | |
1208 | #endif | |
1209 | { | |
1210 | puts_filtered ("Selector $cs\n"); | |
1211 | display_selector (current_thread->h, | |
1212 | current_thread->context.SegCs); | |
1213 | puts_filtered ("Selector $ds\n"); | |
1214 | display_selector (current_thread->h, | |
1215 | current_thread->context.SegDs); | |
1216 | puts_filtered ("Selector $es\n"); | |
1217 | display_selector (current_thread->h, | |
1218 | current_thread->context.SegEs); | |
1219 | puts_filtered ("Selector $ss\n"); | |
1220 | display_selector (current_thread->h, | |
1221 | current_thread->context.SegSs); | |
1222 | puts_filtered ("Selector $fs\n"); | |
1223 | display_selector (current_thread->h, | |
1224 | current_thread->context.SegFs); | |
1225 | puts_filtered ("Selector $gs\n"); | |
1226 | display_selector (current_thread->h, | |
1227 | current_thread->context.SegGs); | |
1228 | } | |
c1748f97 PM |
1229 | } |
1230 | else | |
1231 | { | |
1232 | int sel; | |
1233 | sel = parse_and_eval_long (args); | |
1234 | printf_filtered ("Selector \"%s\"\n",args); | |
1235 | display_selector (current_thread->h, sel); | |
1236 | } | |
1237 | } | |
1238 | ||
7393af7c | 1239 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1240 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1241 | host_address_to_string (\ | |
1242 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1243 | |
24cdb46e | 1244 | static handle_exception_result |
450005e7 | 1245 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1246 | { |
24cdb46e РИ |
1247 | EXCEPTION_RECORD *rec = ¤t_event.u.Exception.ExceptionRecord; |
1248 | DWORD code = rec->ExceptionCode; | |
1249 | handle_exception_result result = HANDLE_EXCEPTION_HANDLED; | |
3cee93ac | 1250 | |
7928d571 HD |
1251 | memcpy (&siginfo_er, rec, sizeof siginfo_er); |
1252 | ||
29fe111d | 1253 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1254 | |
581e13c1 | 1255 | /* Record the context of the current thread. */ |
c25b7cce | 1256 | thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1257 | |
29fe111d | 1258 | switch (code) |
24e60978 | 1259 | { |
1ef980b9 | 1260 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c | 1261 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
a493e3e2 | 1262 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
10325bc5 | 1263 | #ifdef __CYGWIN__ |
8da8e0b3 | 1264 | { |
581e13c1 MS |
1265 | /* See if the access violation happened within the cygwin DLL |
1266 | itself. Cygwin uses a kind of exception handling to deal | |
1267 | with passed-in invalid addresses. gdb should not treat | |
1268 | these as real SEGVs since they will be silently handled by | |
1269 | cygwin. A real SEGV will (theoretically) be caught by | |
1270 | cygwin later in the process and will be sent as a | |
1271 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1272 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1273 | const char *fn; |
24cdb46e | 1274 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) rec->ExceptionAddress; |
581e13c1 MS |
1275 | |
1276 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1277 | && addr < cygwin_load_end)) | |
a244bdca | 1278 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
61012eef | 1279 | && startswith (fn, "KERNEL32!IsBad"))) |
24cdb46e | 1280 | return HANDLE_EXCEPTION_UNHANDLED; |
8da8e0b3 | 1281 | } |
10325bc5 | 1282 | #endif |
7393af7c PM |
1283 | break; |
1284 | case STATUS_STACK_OVERFLOW: | |
1285 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
a493e3e2 | 1286 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
7393af7c PM |
1287 | break; |
1288 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1289 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
a493e3e2 | 1290 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1291 | break; |
1292 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1293 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
a493e3e2 | 1294 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1295 | break; |
1296 | case STATUS_FLOAT_INEXACT_RESULT: | |
1297 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
a493e3e2 | 1298 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1299 | break; |
1300 | case STATUS_FLOAT_INVALID_OPERATION: | |
1301 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
a493e3e2 | 1302 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1303 | break; |
1304 | case STATUS_FLOAT_OVERFLOW: | |
1305 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
a493e3e2 | 1306 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1307 | break; |
1308 | case STATUS_FLOAT_STACK_CHECK: | |
1309 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
a493e3e2 | 1310 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 | 1311 | break; |
3b7c8b74 | 1312 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c | 1313 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
a493e3e2 | 1314 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1315 | break; |
3b7c8b74 | 1316 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c | 1317 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
a493e3e2 | 1318 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1319 | break; |
3b7c8b74 | 1320 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1321 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
a493e3e2 | 1322 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
3b7c8b74 | 1323 | break; |
7393af7c PM |
1324 | case STATUS_INTEGER_OVERFLOW: |
1325 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
a493e3e2 | 1326 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 SC |
1327 | break; |
1328 | case EXCEPTION_BREAKPOINT: | |
46f9f931 HD |
1329 | #ifdef __x86_64__ |
1330 | if (ignore_first_breakpoint) | |
1331 | { | |
1332 | /* For WOW64 processes, there are always 2 breakpoint exceptions | |
1333 | on startup, first a BREAKPOINT for the 64bit ntdll.dll, | |
1334 | then a WX86_BREAKPOINT for the 32bit ntdll.dll. | |
1335 | Here we only care about the WX86_BREAKPOINT's. */ | |
1336 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
1337 | ignore_first_breakpoint = false; | |
1338 | } | |
1339 | #endif | |
1340 | /* FALLTHROUGH */ | |
1341 | case STATUS_WX86_BREAKPOINT: | |
7393af7c | 1342 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
a493e3e2 | 1343 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 SC |
1344 | break; |
1345 | case DBG_CONTROL_C: | |
7393af7c | 1346 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
a493e3e2 | 1347 | ourstatus->value.sig = GDB_SIGNAL_INT; |
5b421780 PM |
1348 | break; |
1349 | case DBG_CONTROL_BREAK: | |
7393af7c | 1350 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
a493e3e2 | 1351 | ourstatus->value.sig = GDB_SIGNAL_INT; |
1ef980b9 SC |
1352 | break; |
1353 | case EXCEPTION_SINGLE_STEP: | |
46f9f931 | 1354 | case STATUS_WX86_SINGLE_STEP: |
7393af7c | 1355 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
a493e3e2 | 1356 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 | 1357 | break; |
8227c82d | 1358 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c | 1359 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
a493e3e2 | 1360 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1361 | break; |
1362 | case EXCEPTION_PRIV_INSTRUCTION: | |
1363 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
a493e3e2 | 1364 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1365 | break; |
1366 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1367 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
a493e3e2 | 1368 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
8227c82d | 1369 | break; |
24cdb46e РИ |
1370 | case MS_VC_EXCEPTION: |
1371 | if (rec->NumberParameters >= 3 | |
1372 | && (rec->ExceptionInformation[0] & 0xffffffff) == 0x1000) | |
1373 | { | |
1374 | DWORD named_thread_id; | |
1375 | windows_thread_info *named_thread; | |
1376 | CORE_ADDR thread_name_target; | |
1377 | ||
1378 | DEBUG_EXCEPTION_SIMPLE ("MS_VC_EXCEPTION"); | |
1379 | ||
1380 | thread_name_target = rec->ExceptionInformation[1]; | |
1381 | named_thread_id = (DWORD) (0xffffffff & rec->ExceptionInformation[2]); | |
1382 | ||
1383 | if (named_thread_id == (DWORD) -1) | |
1384 | named_thread_id = current_event.dwThreadId; | |
1385 | ||
1386 | named_thread = thread_rec (named_thread_id, 0); | |
1387 | if (named_thread != NULL) | |
1388 | { | |
1389 | int thread_name_len; | |
e83e4e24 | 1390 | gdb::unique_xmalloc_ptr<char> thread_name; |
24cdb46e РИ |
1391 | |
1392 | thread_name_len = target_read_string (thread_name_target, | |
1393 | &thread_name, 1025, NULL); | |
1394 | if (thread_name_len > 0) | |
1395 | { | |
e83e4e24 | 1396 | thread_name.get ()[thread_name_len - 1] = '\0'; |
2950fdf7 | 1397 | named_thread->name = std::move (thread_name); |
24cdb46e | 1398 | } |
24cdb46e РИ |
1399 | } |
1400 | ourstatus->value.sig = GDB_SIGNAL_TRAP; | |
1401 | result = HANDLE_EXCEPTION_IGNORED; | |
1402 | break; | |
1403 | } | |
e7ec8713 TT |
1404 | /* treat improperly formed exception as unknown */ |
1405 | /* FALLTHROUGH */ | |
1ef980b9 | 1406 | default: |
581e13c1 | 1407 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1408 | if (current_event.u.Exception.dwFirstChance) |
24cdb46e | 1409 | return HANDLE_EXCEPTION_UNHANDLED; |
d50a0ce2 CV |
1410 | printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n", |
1411 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
a74ce742 PM |
1412 | host_address_to_string ( |
1413 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
a493e3e2 | 1414 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
1ef980b9 | 1415 | break; |
24e60978 | 1416 | } |
24e60978 | 1417 | exception_count++; |
7393af7c | 1418 | last_sig = ourstatus->value.sig; |
24cdb46e | 1419 | return result; |
24e60978 SC |
1420 | } |
1421 | ||
17617f2d EZ |
1422 | /* Resume thread specified by ID, or all artificially suspended |
1423 | threads, if we are continuing execution. KILLED non-zero means we | |
1424 | have killed the inferior, so we should ignore weird errors due to | |
1425 | threads shutting down. */ | |
3cee93ac | 1426 | static BOOL |
17617f2d | 1427 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac | 1428 | { |
3cee93ac CF |
1429 | BOOL res; |
1430 | ||
0c3d84be | 1431 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n", |
d50a0ce2 CV |
1432 | (unsigned) current_event.dwProcessId, |
1433 | (unsigned) current_event.dwThreadId, | |
dfe7f3ac | 1434 | continue_status == DBG_CONTINUE ? |
7393af7c | 1435 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 | 1436 | |
93366324 | 1437 | for (windows_thread_info *th : thread_list) |
55a1e039 | 1438 | if ((id == -1 || id == (int) th->tid) |
6537bb24 PA |
1439 | && th->suspended) |
1440 | { | |
46f9f931 HD |
1441 | #ifdef __x86_64__ |
1442 | if (wow64_process) | |
6537bb24 | 1443 | { |
46f9f931 HD |
1444 | if (debug_registers_changed) |
1445 | { | |
1446 | th->wow64_context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1447 | th->wow64_context.Dr0 = dr[0]; | |
1448 | th->wow64_context.Dr1 = dr[1]; | |
1449 | th->wow64_context.Dr2 = dr[2]; | |
1450 | th->wow64_context.Dr3 = dr[3]; | |
1451 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1452 | th->wow64_context.Dr7 = dr[7]; | |
1453 | } | |
1454 | if (th->wow64_context.ContextFlags) | |
1455 | { | |
1456 | DWORD ec = 0; | |
1457 | ||
1458 | if (GetExitCodeThread (th->h, &ec) | |
1459 | && ec == STILL_ACTIVE) | |
1460 | { | |
1461 | BOOL status = Wow64SetThreadContext (th->h, | |
1462 | &th->wow64_context); | |
1463 | ||
1464 | if (!killed) | |
1465 | CHECK (status); | |
1466 | } | |
1467 | th->wow64_context.ContextFlags = 0; | |
1468 | } | |
6537bb24 | 1469 | } |
46f9f931 HD |
1470 | else |
1471 | #endif | |
6537bb24 | 1472 | { |
46f9f931 | 1473 | if (debug_registers_changed) |
17617f2d | 1474 | { |
46f9f931 HD |
1475 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; |
1476 | th->context.Dr0 = dr[0]; | |
1477 | th->context.Dr1 = dr[1]; | |
1478 | th->context.Dr2 = dr[2]; | |
1479 | th->context.Dr3 = dr[3]; | |
1480 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1481 | th->context.Dr7 = dr[7]; | |
1482 | } | |
1483 | if (th->context.ContextFlags) | |
1484 | { | |
1485 | DWORD ec = 0; | |
1486 | ||
1487 | if (GetExitCodeThread (th->h, &ec) | |
1488 | && ec == STILL_ACTIVE) | |
1489 | { | |
1490 | BOOL status = SetThreadContext (th->h, &th->context); | |
17617f2d | 1491 | |
46f9f931 HD |
1492 | if (!killed) |
1493 | CHECK (status); | |
1494 | } | |
1495 | th->context.ContextFlags = 0; | |
17617f2d | 1496 | } |
6537bb24 | 1497 | } |
98a03287 | 1498 | th->resume (); |
6537bb24 PA |
1499 | } |
1500 | ||
0714f9bf SS |
1501 | res = ContinueDebugEvent (current_event.dwProcessId, |
1502 | current_event.dwThreadId, | |
1503 | continue_status); | |
3cee93ac | 1504 | |
68ffc902 JT |
1505 | if (!res) |
1506 | error (_("Failed to resume program execution" | |
1507 | " (ContinueDebugEvent failed, error %u)"), | |
1508 | (unsigned int) GetLastError ()); | |
1509 | ||
fa4ba8da | 1510 | debug_registers_changed = 0; |
3cee93ac CF |
1511 | return res; |
1512 | } | |
1513 | ||
d6dc8049 CF |
1514 | /* Called in pathological case where Windows fails to send a |
1515 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1516 | static DWORD |
5439edaa | 1517 | fake_create_process (void) |
3ade5333 CF |
1518 | { |
1519 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1520 | current_event.dwProcessId); | |
bf25528d CF |
1521 | if (current_process_handle != NULL) |
1522 | open_process_used = 1; | |
1523 | else | |
1524 | { | |
d50a0ce2 CV |
1525 | error (_("OpenProcess call failed, GetLastError = %u"), |
1526 | (unsigned) GetLastError ()); | |
bf25528d CF |
1527 | /* We can not debug anything in that case. */ |
1528 | } | |
c559d709 | 1529 | current_thread |
7c7411bc TT |
1530 | = windows_add_thread (ptid_t (current_event.dwProcessId, |
1531 | current_event.dwThreadId, 0), | |
c559d709 JB |
1532 | current_event.u.CreateThread.hThread, |
1533 | current_event.u.CreateThread.lpThreadLocalBase, | |
1534 | true /* main_thread_p */); | |
ab4ee614 | 1535 | return current_event.dwThreadId; |
3ade5333 CF |
1536 | } |
1537 | ||
f6ac5f3d PA |
1538 | void |
1539 | windows_nat_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
a244bdca | 1540 | { |
876d1cd7 | 1541 | windows_thread_info *th; |
a244bdca CF |
1542 | DWORD continue_status = DBG_CONTINUE; |
1543 | ||
2dc38344 | 1544 | /* A specific PTID means `step only this thread id'. */ |
d7e15655 | 1545 | int resume_all = ptid == minus_one_ptid; |
2dc38344 PA |
1546 | |
1547 | /* If we're continuing all threads, it's the current inferior that | |
1548 | should be handled specially. */ | |
1549 | if (resume_all) | |
1550 | ptid = inferior_ptid; | |
a244bdca | 1551 | |
a493e3e2 | 1552 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1553 | { |
1554 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1555 | { | |
1556 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1557 | } | |
1558 | else if (sig == last_sig) | |
1559 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1560 | else | |
1561 | #if 0 | |
1562 | /* This code does not seem to work, because | |
1563 | the kernel does probably not consider changes in the ExceptionRecord | |
1564 | structure when passing the exception to the inferior. | |
1565 | Note that this seems possible in the exception handler itself. */ | |
1566 | { | |
73c13fe6 TT |
1567 | for (const xlate_exception &x : xlate) |
1568 | if (x.us == sig) | |
a244bdca | 1569 | { |
581e13c1 | 1570 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
73c13fe6 | 1571 | = x.them; |
a244bdca CF |
1572 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1573 | break; | |
1574 | } | |
1575 | if (continue_status == DBG_CONTINUE) | |
1576 | { | |
1577 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1578 | } | |
1579 | } | |
1580 | #endif | |
23942819 | 1581 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1582 | last_sig)); |
1583 | } | |
1584 | ||
a493e3e2 | 1585 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1586 | |
55dfc88f | 1587 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=0x%x, step=%d, sig=%d);\n", |
7c7411bc | 1588 | ptid.pid (), (unsigned) ptid.lwp (), step, sig)); |
a244bdca | 1589 | |
581e13c1 | 1590 | /* Get context for currently selected thread. */ |
7c7411bc | 1591 | th = thread_rec (inferior_ptid.lwp (), FALSE); |
a244bdca CF |
1592 | if (th) |
1593 | { | |
46f9f931 HD |
1594 | #ifdef __x86_64__ |
1595 | if (wow64_process) | |
a244bdca | 1596 | { |
46f9f931 HD |
1597 | if (step) |
1598 | { | |
1599 | /* Single step by setting t bit. */ | |
1600 | struct regcache *regcache = get_current_regcache (); | |
1601 | struct gdbarch *gdbarch = regcache->arch (); | |
1602 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1603 | th->wow64_context.EFlags |= FLAG_TRACE_BIT; | |
1604 | } | |
a244bdca | 1605 | |
46f9f931 HD |
1606 | if (th->wow64_context.ContextFlags) |
1607 | { | |
1608 | if (debug_registers_changed) | |
1609 | { | |
1610 | th->wow64_context.Dr0 = dr[0]; | |
1611 | th->wow64_context.Dr1 = dr[1]; | |
1612 | th->wow64_context.Dr2 = dr[2]; | |
1613 | th->wow64_context.Dr3 = dr[3]; | |
1614 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1615 | th->wow64_context.Dr7 = dr[7]; | |
1616 | } | |
1617 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
1618 | th->wow64_context.ContextFlags = 0; | |
1619 | } | |
1620 | } | |
1621 | else | |
1622 | #endif | |
a244bdca | 1623 | { |
46f9f931 | 1624 | if (step) |
a244bdca | 1625 | { |
46f9f931 HD |
1626 | /* Single step by setting t bit. */ |
1627 | struct regcache *regcache = get_current_regcache (); | |
1628 | struct gdbarch *gdbarch = regcache->arch (); | |
1629 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1630 | th->context.EFlags |= FLAG_TRACE_BIT; | |
1631 | } | |
1632 | ||
1633 | if (th->context.ContextFlags) | |
1634 | { | |
1635 | if (debug_registers_changed) | |
1636 | { | |
1637 | th->context.Dr0 = dr[0]; | |
1638 | th->context.Dr1 = dr[1]; | |
1639 | th->context.Dr2 = dr[2]; | |
1640 | th->context.Dr3 = dr[3]; | |
1641 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1642 | th->context.Dr7 = dr[7]; | |
1643 | } | |
1644 | CHECK (SetThreadContext (th->h, &th->context)); | |
1645 | th->context.ContextFlags = 0; | |
a244bdca | 1646 | } |
a244bdca CF |
1647 | } |
1648 | } | |
1649 | ||
1650 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1651 | Otherwise complain. */ |
a244bdca | 1652 | |
2dc38344 | 1653 | if (resume_all) |
17617f2d | 1654 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1655 | else |
7c7411bc | 1656 | windows_continue (continue_status, ptid.lwp (), 0); |
a244bdca CF |
1657 | } |
1658 | ||
695de547 CF |
1659 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1660 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1661 | Note that this function is not available prior to Windows XP. In this case | |
1662 | we emit a warning. */ | |
d603d4b3 | 1663 | static BOOL WINAPI |
695de547 CF |
1664 | ctrl_c_handler (DWORD event_type) |
1665 | { | |
1666 | const int attach_flag = current_inferior ()->attach_flag; | |
1667 | ||
bb0613a5 PM |
1668 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1669 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1670 | return FALSE; |
1671 | ||
1672 | /* If the inferior and the debugger share the same console, do nothing as | |
1673 | the inferior has also received the Ctrl-C event. */ | |
1674 | if (!new_console && !attach_flag) | |
1675 | return TRUE; | |
1676 | ||
1677 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1678 | warning (_("Could not interrupt program. " |
1679 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1680 | |
1681 | /* Return true to tell that Ctrl-C has been handled. */ | |
1682 | return TRUE; | |
1683 | } | |
1684 | ||
e6ad66bd JT |
1685 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1686 | requires handling by WFI (or whatever). */ | |
5b6d1e4f PA |
1687 | |
1688 | int | |
1689 | windows_nat_target::get_windows_debug_event (int pid, | |
1690 | struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1691 | { |
1692 | BOOL debug_event; | |
8a892701 | 1693 | DWORD continue_status, event_code; |
876d1cd7 | 1694 | windows_thread_info *th; |
e9534bd2 | 1695 | static windows_thread_info dummy_thread_info (0, 0, 0); |
e6ad66bd | 1696 | DWORD thread_id = 0; |
1e37c281 | 1697 | |
a493e3e2 | 1698 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1699 | |
8a892701 | 1700 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1701 | goto out; |
1e37c281 JM |
1702 | |
1703 | event_count++; | |
1704 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1705 | |
8a892701 | 1706 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1707 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1708 | th = NULL; |
a244bdca | 1709 | have_saved_context = 0; |
8a892701 CF |
1710 | |
1711 | switch (event_code) | |
1e37c281 JM |
1712 | { |
1713 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1714 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1715 | (unsigned) current_event.dwProcessId, |
1716 | (unsigned) current_event.dwThreadId, | |
1717 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1718 | if (saw_create != 1) |
3ade5333 | 1719 | { |
5b6d1e4f | 1720 | inferior *inf = find_inferior_pid (this, current_event.dwProcessId); |
181e7f93 | 1721 | if (!saw_create && inf->attach_flag) |
3ade5333 | 1722 | { |
d6dc8049 CF |
1723 | /* Kludge around a Windows bug where first event is a create |
1724 | thread event. Caused when attached process does not have | |
581e13c1 | 1725 | a main thread. */ |
e6ad66bd JT |
1726 | thread_id = fake_create_process (); |
1727 | if (thread_id) | |
181e7f93 | 1728 | saw_create++; |
3ade5333 CF |
1729 | } |
1730 | break; | |
1731 | } | |
581e13c1 | 1732 | /* Record the existence of this thread. */ |
e6ad66bd | 1733 | thread_id = current_event.dwThreadId; |
c559d709 | 1734 | th = windows_add_thread |
7c7411bc | 1735 | (ptid_t (current_event.dwProcessId, current_event.dwThreadId, 0), |
c559d709 JB |
1736 | current_event.u.CreateThread.hThread, |
1737 | current_event.u.CreateThread.lpThreadLocalBase, | |
1738 | false /* main_thread_p */); | |
711e434b | 1739 | |
1e37c281 JM |
1740 | break; |
1741 | ||
1742 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1743 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1744 | (unsigned) current_event.dwProcessId, |
1745 | (unsigned) current_event.dwThreadId, | |
1746 | "EXIT_THREAD_DEBUG_EVENT")); | |
7c7411bc TT |
1747 | windows_delete_thread (ptid_t (current_event.dwProcessId, |
1748 | current_event.dwThreadId, 0), | |
c559d709 JB |
1749 | current_event.u.ExitThread.dwExitCode, |
1750 | false /* main_thread_p */); | |
2eab46b1 | 1751 | th = &dummy_thread_info; |
1e37c281 JM |
1752 | break; |
1753 | ||
1754 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1755 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1756 | (unsigned) current_event.dwProcessId, |
1757 | (unsigned) current_event.dwThreadId, | |
1758 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1759 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1760 | if (++saw_create != 1) |
bf25528d | 1761 | break; |
1e37c281 | 1762 | |
dfe7f3ac | 1763 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
581e13c1 | 1764 | /* Add the main thread. */ |
c559d709 | 1765 | th = windows_add_thread |
7c7411bc TT |
1766 | (ptid_t (current_event.dwProcessId, |
1767 | current_event.dwThreadId, 0), | |
c559d709 JB |
1768 | current_event.u.CreateProcessInfo.hThread, |
1769 | current_event.u.CreateProcessInfo.lpThreadLocalBase, | |
1770 | true /* main_thread_p */); | |
e6ad66bd | 1771 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1772 | break; |
1773 | ||
1774 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1775 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1776 | (unsigned) current_event.dwProcessId, |
1777 | (unsigned) current_event.dwThreadId, | |
1778 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1779 | if (!windows_initialization_done) |
1780 | { | |
223ffa71 | 1781 | target_terminal::ours (); |
bc1e6c81 | 1782 | target_mourn_inferior (inferior_ptid); |
16d905e2 CF |
1783 | error (_("During startup program exited with code 0x%x."), |
1784 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1785 | } | |
1786 | else if (saw_create == 1) | |
1787 | { | |
7c7411bc TT |
1788 | windows_delete_thread (ptid_t (current_event.dwProcessId, |
1789 | current_event.dwThreadId, 0), | |
c559d709 | 1790 | 0, true /* main_thread_p */); |
559e7e50 EZ |
1791 | DWORD exit_status = current_event.u.ExitProcess.dwExitCode; |
1792 | /* If the exit status looks like a fatal exception, but we | |
1793 | don't recognize the exception's code, make the original | |
1794 | exit status value available, to avoid losing | |
1795 | information. */ | |
1796 | int exit_signal | |
1797 | = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1; | |
1798 | if (exit_signal == -1) | |
1799 | { | |
1800 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1801 | ourstatus->value.integer = exit_status; | |
1802 | } | |
1803 | else | |
1804 | { | |
1805 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1806 | ourstatus->value.sig = gdb_signal_from_host (exit_signal); | |
1807 | } | |
8ed5b76e | 1808 | thread_id = current_event.dwThreadId; |
16d905e2 | 1809 | } |
8a892701 | 1810 | break; |
1e37c281 JM |
1811 | |
1812 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1813 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1814 | (unsigned) current_event.dwProcessId, |
1815 | (unsigned) current_event.dwThreadId, | |
1816 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1817 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1818 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1819 | break; |
bf469271 | 1820 | catch_errors (handle_load_dll); |
450005e7 CF |
1821 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1822 | ourstatus->value.integer = 0; | |
ab4ee614 | 1823 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1824 | break; |
1825 | ||
1826 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1827 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1828 | (unsigned) current_event.dwProcessId, |
1829 | (unsigned) current_event.dwThreadId, | |
1830 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1831 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1832 | break; |
bf469271 | 1833 | catch_errors (handle_unload_dll); |
de1b3c3d PA |
1834 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1835 | ourstatus->value.integer = 0; | |
ab4ee614 | 1836 | thread_id = current_event.dwThreadId; |
d3ff4a77 | 1837 | break; |
1e37c281 JM |
1838 | |
1839 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1840 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1841 | (unsigned) current_event.dwProcessId, |
1842 | (unsigned) current_event.dwThreadId, | |
1843 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1844 | if (saw_create != 1) |
1845 | break; | |
24cdb46e РИ |
1846 | switch (handle_exception (ourstatus)) |
1847 | { | |
1848 | case HANDLE_EXCEPTION_UNHANDLED: | |
1849 | default: | |
1850 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1851 | break; | |
1852 | case HANDLE_EXCEPTION_HANDLED: | |
1853 | thread_id = current_event.dwThreadId; | |
1854 | break; | |
1855 | case HANDLE_EXCEPTION_IGNORED: | |
1856 | continue_status = DBG_CONTINUE; | |
1857 | break; | |
1858 | } | |
1e37c281 JM |
1859 | break; |
1860 | ||
581e13c1 | 1861 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1862 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1863 | (unsigned) current_event.dwProcessId, |
1864 | (unsigned) current_event.dwThreadId, | |
1865 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1866 | if (saw_create != 1) |
1867 | break; | |
e6ad66bd | 1868 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1869 | break; |
9d3789f7 | 1870 | |
1e37c281 | 1871 | default: |
dfe7f3ac CF |
1872 | if (saw_create != 1) |
1873 | break; | |
0c3d84be | 1874 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1875 | (unsigned) current_event.dwProcessId, |
1876 | (unsigned) current_event.dwThreadId); | |
1877 | printf_unfiltered (" unknown event code %u\n", | |
1878 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1879 | break; |
1880 | } | |
1881 | ||
e6ad66bd | 1882 | if (!thread_id || saw_create != 1) |
a244bdca | 1883 | { |
95824559 | 1884 | CHECK (windows_continue (continue_status, -1, 0)); |
a244bdca | 1885 | } |
450005e7 | 1886 | else |
9d3789f7 | 1887 | { |
7c7411bc | 1888 | inferior_ptid = ptid_t (current_event.dwProcessId, thread_id, 0); |
776704b9 JT |
1889 | current_thread = th; |
1890 | if (!current_thread) | |
f16eab5f | 1891 | current_thread = thread_rec (thread_id, TRUE); |
9d3789f7 | 1892 | } |
1e37c281 JM |
1893 | |
1894 | out: | |
e6ad66bd | 1895 | return thread_id; |
1e37c281 JM |
1896 | } |
1897 | ||
2dc38344 | 1898 | /* Wait for interesting events to occur in the target process. */ |
f6ac5f3d PA |
1899 | ptid_t |
1900 | windows_nat_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus, | |
1901 | int options) | |
24e60978 | 1902 | { |
2dc38344 | 1903 | int pid = -1; |
39f77062 | 1904 | |
24e60978 SC |
1905 | /* We loop when we get a non-standard exception rather than return |
1906 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1907 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1908 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1909 | isn't necessarily what you think it is. */ |
24e60978 SC |
1910 | |
1911 | while (1) | |
450005e7 | 1912 | { |
c57918b2 | 1913 | int retval; |
2b008701 | 1914 | |
695de547 CF |
1915 | /* If the user presses Ctrl-c while the debugger is waiting |
1916 | for an event, he expects the debugger to interrupt his program | |
1917 | and to get the prompt back. There are two possible situations: | |
1918 | ||
1919 | - The debugger and the program do not share the console, in | |
1920 | which case the Ctrl-c event only reached the debugger. | |
1921 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1922 | the inferior. Note that this case is working starting with |
1923 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1924 | inferior console. |
1925 | ||
1926 | - The debugger and the program share the same console, in which | |
1927 | case both debugger and inferior will receive the Ctrl-c event. | |
1928 | In that case the ctrl_c handler will ignore the event, as the | |
1929 | Ctrl-c event generated inside the inferior will trigger the | |
1930 | expected debug event. | |
1931 | ||
1932 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1933 | signal first and the delay until GDB receives that signal | |
1934 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1935 | after we have unblocked the CTRL+C handler. This would | |
1936 | lead to the debugger stopping prematurely while handling | |
1937 | the new-thread event that comes with the handling of the SIGINT | |
1938 | inside the inferior, and then stop again immediately when | |
1939 | the user tries to resume the execution in the inferior. | |
1940 | This is a classic race that we should try to fix one day. */ | |
1941 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
5b6d1e4f | 1942 | retval = get_windows_debug_event (pid, ourstatus); |
695de547 | 1943 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1944 | |
450005e7 | 1945 | if (retval) |
7c7411bc | 1946 | return ptid_t (current_event.dwProcessId, retval, 0); |
450005e7 CF |
1947 | else |
1948 | { | |
1949 | int detach = 0; | |
3cee93ac | 1950 | |
98bbd631 AC |
1951 | if (deprecated_ui_loop_hook != NULL) |
1952 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1953 | |
450005e7 | 1954 | if (detach) |
f6ac5f3d | 1955 | kill (); |
450005e7 CF |
1956 | } |
1957 | } | |
24e60978 SC |
1958 | } |
1959 | ||
ea39ad35 JB |
1960 | /* Iterate over all DLLs currently mapped by our inferior, and |
1961 | add them to our list of solibs. */ | |
94481b8c JB |
1962 | |
1963 | static void | |
ea39ad35 | 1964 | windows_add_all_dlls (void) |
94481b8c | 1965 | { |
94481b8c JB |
1966 | HMODULE dummy_hmodule; |
1967 | DWORD cb_needed; | |
1968 | HMODULE *hmodules; | |
1969 | int i; | |
1970 | ||
46f9f931 HD |
1971 | #ifdef __x86_64__ |
1972 | if (wow64_process) | |
1973 | { | |
1974 | if (EnumProcessModulesEx (current_process_handle, &dummy_hmodule, | |
1975 | sizeof (HMODULE), &cb_needed, | |
1976 | LIST_MODULES_32BIT) == 0) | |
1977 | return; | |
1978 | } | |
1979 | else | |
1980 | #endif | |
1981 | { | |
1982 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, | |
1983 | sizeof (HMODULE), &cb_needed) == 0) | |
1984 | return; | |
1985 | } | |
94481b8c JB |
1986 | |
1987 | if (cb_needed < 1) | |
1988 | return; | |
1989 | ||
1990 | hmodules = (HMODULE *) alloca (cb_needed); | |
46f9f931 HD |
1991 | #ifdef __x86_64__ |
1992 | if (wow64_process) | |
1993 | { | |
1994 | if (EnumProcessModulesEx (current_process_handle, hmodules, | |
1995 | cb_needed, &cb_needed, | |
1996 | LIST_MODULES_32BIT) == 0) | |
1997 | return; | |
1998 | } | |
1999 | else | |
2000 | #endif | |
2001 | { | |
2002 | if (EnumProcessModules (current_process_handle, hmodules, | |
2003 | cb_needed, &cb_needed) == 0) | |
2004 | return; | |
2005 | } | |
94481b8c | 2006 | |
d503b685 HD |
2007 | char system_dir[__PMAX]; |
2008 | char syswow_dir[__PMAX]; | |
2009 | size_t system_dir_len = 0; | |
ebea7626 HD |
2010 | bool convert_syswow_dir = false; |
2011 | #ifdef __x86_64__ | |
d503b685 | 2012 | if (wow64_process) |
ebea7626 | 2013 | #endif |
d503b685 | 2014 | { |
ebea7626 HD |
2015 | /* This fails on 32bit Windows because it has no SysWOW64 directory, |
2016 | and in this case a path conversion isn't necessary. */ | |
2017 | UINT len = GetSystemWow64DirectoryA (syswow_dir, sizeof (syswow_dir)); | |
2018 | if (len > 0) | |
2019 | { | |
2020 | /* Check that we have passed a large enough buffer. */ | |
2021 | gdb_assert (len < sizeof (syswow_dir)); | |
2022 | ||
2023 | len = GetSystemDirectoryA (system_dir, sizeof (system_dir)); | |
2024 | /* Error check. */ | |
2025 | gdb_assert (len != 0); | |
2026 | /* Check that we have passed a large enough buffer. */ | |
2027 | gdb_assert (len < sizeof (system_dir)); | |
2028 | ||
2029 | strcat (system_dir, "\\"); | |
2030 | strcat (syswow_dir, "\\"); | |
2031 | system_dir_len = strlen (system_dir); | |
2032 | ||
2033 | convert_syswow_dir = true; | |
2034 | } | |
2035 | ||
d503b685 | 2036 | } |
ea39ad35 | 2037 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
2038 | { |
2039 | MODULEINFO mi; | |
774f74c2 PM |
2040 | #ifdef __USEWIDE |
2041 | wchar_t dll_name[__PMAX]; | |
d503b685 | 2042 | char dll_name_mb[__PMAX]; |
774f74c2 | 2043 | #else |
94481b8c | 2044 | char dll_name[__PMAX]; |
774f74c2 | 2045 | #endif |
d503b685 | 2046 | const char *name; |
94481b8c JB |
2047 | if (GetModuleInformation (current_process_handle, hmodules[i], |
2048 | &mi, sizeof (mi)) == 0) | |
2049 | continue; | |
2050 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
2051 | dll_name, sizeof (dll_name)) == 0) | |
2052 | continue; | |
774f74c2 | 2053 | #ifdef __USEWIDE |
d503b685 HD |
2054 | wcstombs (dll_name_mb, dll_name, __PMAX); |
2055 | name = dll_name_mb; | |
774f74c2 PM |
2056 | #else |
2057 | name = dll_name; | |
2058 | #endif | |
ebea7626 | 2059 | /* Convert the DLL path of 32bit processes returned by |
d503b685 HD |
2060 | GetModuleFileNameEx from the 64bit system directory to the |
2061 | 32bit syswow64 directory if necessary. */ | |
2062 | std::string syswow_dll_path; | |
ebea7626 | 2063 | if (convert_syswow_dir |
d503b685 HD |
2064 | && strncasecmp (name, system_dir, system_dir_len) == 0 |
2065 | && strchr (name + system_dir_len, '\\') == nullptr) | |
2066 | { | |
2067 | syswow_dll_path = syswow_dir; | |
2068 | syswow_dll_path += name + system_dir_len; | |
2069 | name = syswow_dll_path.c_str(); | |
2070 | } | |
ea39ad35 JB |
2071 | |
2072 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
2073 | solib_end = solib_end->next; | |
94481b8c JB |
2074 | } |
2075 | } | |
2076 | ||
9d3789f7 | 2077 | static void |
dc05df57 | 2078 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 | 2079 | { |
fa4ba8da | 2080 | int i; |
d6b48e9c | 2081 | struct inferior *inf; |
9d3789f7 | 2082 | |
a493e3e2 | 2083 | last_sig = GDB_SIGNAL_0; |
9d3789f7 CF |
2084 | event_count = 0; |
2085 | exception_count = 0; | |
bf25528d | 2086 | open_process_used = 0; |
fa4ba8da | 2087 | debug_registers_changed = 0; |
dfe7f3ac | 2088 | debug_registers_used = 0; |
fa4ba8da PM |
2089 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
2090 | dr[i] = 0; | |
10325bc5 | 2091 | #ifdef __CYGWIN__ |
de1b3c3d | 2092 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 2093 | #endif |
9d3789f7 CF |
2094 | current_event.dwProcessId = pid; |
2095 | memset (¤t_event, 0, sizeof (current_event)); | |
6a3cb8e8 PA |
2096 | if (!target_is_pushed (ops)) |
2097 | push_target (ops); | |
cb851954 | 2098 | disable_breakpoints_in_shlibs (); |
dc05df57 | 2099 | windows_clear_solib (); |
88056fbb | 2100 | clear_proceed_status (0); |
9d3789f7 CF |
2101 | init_wait_for_inferior (); |
2102 | ||
46f9f931 HD |
2103 | #ifdef __x86_64__ |
2104 | ignore_first_breakpoint = !attaching && wow64_process; | |
2105 | ||
2106 | if (!wow64_process) | |
2107 | { | |
2108 | windows_set_context_register_offsets (amd64_mappings); | |
2109 | windows_set_segment_register_p (amd64_windows_segment_register_p); | |
2110 | } | |
2111 | else | |
2112 | #endif | |
2113 | { | |
2114 | windows_set_context_register_offsets (i386_mappings); | |
2115 | windows_set_segment_register_p (i386_windows_segment_register_p); | |
2116 | } | |
2117 | ||
6c95b8df PA |
2118 | inf = current_inferior (); |
2119 | inferior_appeared (inf, pid); | |
181e7f93 | 2120 | inf->attach_flag = attaching; |
7f9f62ba | 2121 | |
9f9d052e PM |
2122 | /* Make the new process the current inferior, so terminal handling |
2123 | can rely on it. When attaching, we don't know about any thread | |
2124 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 2125 | current thread until we report an event out of windows_wait. */ |
f2907e49 | 2126 | inferior_ptid = ptid_t (pid); |
9f9d052e | 2127 | |
223ffa71 TT |
2128 | target_terminal::init (); |
2129 | target_terminal::inferior (); | |
9d3789f7 | 2130 | |
16d905e2 | 2131 | windows_initialization_done = 0; |
c72f45d1 | 2132 | |
9d3789f7 CF |
2133 | while (1) |
2134 | { | |
c72f45d1 PA |
2135 | struct target_waitstatus status; |
2136 | ||
f6ac5f3d | 2137 | ops->wait (minus_one_ptid, &status, 0); |
c72f45d1 PA |
2138 | |
2139 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
2140 | events. */ | |
2141 | if (status.kind != TARGET_WAITKIND_LOADED | |
2142 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 2143 | break; |
c72f45d1 | 2144 | |
f6ac5f3d | 2145 | ops->resume (minus_one_ptid, 0, GDB_SIGNAL_0); |
9d3789f7 | 2146 | } |
eff8332b | 2147 | |
ea39ad35 | 2148 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
2149 | we can iterate over all DLLs and load them in. |
2150 | ||
2151 | We avoid doing it any earlier because, on certain versions of Windows, | |
2152 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
2153 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
2154 | include the DLL name, preventing us from creating an associated SO. | |
2155 | A possible explanation is that ntdll.dll might be mapped before | |
2156 | the SO info gets created by the Windows system -- ntdll.dll is | |
2157 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
2158 | do not seem to suffer from that problem. | |
2159 | ||
2160 | Rather than try to work around this sort of issue, it is much | |
2161 | simpler to just ignore DLL load/unload events during the startup | |
2162 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 2163 | windows_add_all_dlls (); |
94481b8c | 2164 | |
16d905e2 | 2165 | windows_initialization_done = 1; |
9d3789f7 CF |
2166 | return; |
2167 | } | |
2168 | ||
616a9dc4 CV |
2169 | /* Try to set or remove a user privilege to the current process. Return -1 |
2170 | if that fails, the previous setting of that privilege otherwise. | |
2171 | ||
2172 | This code is copied from the Cygwin source code and rearranged to allow | |
2173 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 2174 | available on NT/2K/XP. */ |
616a9dc4 CV |
2175 | static int |
2176 | set_process_privilege (const char *privilege, BOOL enable) | |
2177 | { | |
616a9dc4 CV |
2178 | HANDLE token_hdl = NULL; |
2179 | LUID restore_priv; | |
2180 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
2181 | int ret = -1; | |
2182 | DWORD size; | |
2183 | ||
616a9dc4 CV |
2184 | if (!OpenProcessToken (GetCurrentProcess (), |
2185 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
2186 | &token_hdl)) | |
2187 | goto out; | |
2188 | ||
418c6cb3 | 2189 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
2190 | goto out; |
2191 | ||
2192 | new_priv.PrivilegeCount = 1; | |
2193 | new_priv.Privileges[0].Luid = restore_priv; | |
2194 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
2195 | ||
2196 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 2197 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
2198 | goto out; |
2199 | #if 0 | |
2200 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
2201 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 2202 | windows_attach(). */ |
616a9dc4 | 2203 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 2204 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
2205 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
2206 | goto out; | |
2207 | #endif | |
2208 | ||
2209 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
2210 | ||
2211 | out: | |
2212 | if (token_hdl) | |
2213 | CloseHandle (token_hdl); | |
2214 | ||
2215 | return ret; | |
2216 | } | |
2217 | ||
02cc9f49 | 2218 | /* Attach to process PID, then initialize for debugging it. */ |
f6ac5f3d PA |
2219 | |
2220 | void | |
2221 | windows_nat_target::attach (const char *args, int from_tty) | |
24e60978 SC |
2222 | { |
2223 | BOOL ok; | |
559e75c0 | 2224 | DWORD pid; |
24e60978 | 2225 | |
74164c56 | 2226 | pid = parse_pid_to_attach (args); |
24e60978 | 2227 | |
616a9dc4 CV |
2228 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
2229 | { | |
2230 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
2231 | printf_unfiltered ("This can cause attach to " |
2232 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
2233 | } |
2234 | ||
dc05df57 | 2235 | windows_init_thread_list (); |
9d3789f7 | 2236 | ok = DebugActiveProcess (pid); |
91a175b3 | 2237 | saw_create = 0; |
24e60978 | 2238 | |
10325bc5 | 2239 | #ifdef __CYGWIN__ |
24e60978 | 2240 | if (!ok) |
baa93fa6 | 2241 | { |
581e13c1 | 2242 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
2243 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
2244 | ||
2245 | if (pid > 0) | |
2246 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
2247 | } |
2248 | #endif | |
baa93fa6 | 2249 | |
10325bc5 | 2250 | if (!ok) |
c9739b6a TT |
2251 | error (_("Can't attach to process %u (error %u)"), |
2252 | (unsigned) pid, (unsigned) GetLastError ()); | |
24e60978 | 2253 | |
2b008701 | 2254 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 2255 | |
24e60978 SC |
2256 | if (from_tty) |
2257 | { | |
d9fa87f4 | 2258 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2259 | |
2260 | if (exec_file) | |
2261 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
a068643d | 2262 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2263 | else |
2264 | printf_unfiltered ("Attaching to %s\n", | |
a068643d | 2265 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2266 | } |
2267 | ||
46f9f931 HD |
2268 | #ifdef __x86_64__ |
2269 | HANDLE h = OpenProcess (PROCESS_QUERY_INFORMATION, FALSE, pid); | |
2270 | if (h != NULL) | |
2271 | { | |
2272 | BOOL wow64; | |
2273 | if (IsWow64Process (h, &wow64)) | |
2274 | wow64_process = wow64; | |
2275 | CloseHandle (h); | |
2276 | } | |
2277 | #endif | |
2278 | ||
f6ac5f3d | 2279 | do_initial_windows_stuff (this, pid, 1); |
223ffa71 | 2280 | target_terminal::ours (); |
24e60978 SC |
2281 | } |
2282 | ||
f6ac5f3d PA |
2283 | void |
2284 | windows_nat_target::detach (inferior *inf, int from_tty) | |
24e60978 | 2285 | { |
02cc9f49 CV |
2286 | int detached = 1; |
2287 | ||
8473b447 | 2288 | ptid_t ptid = minus_one_ptid; |
f6ac5f3d | 2289 | resume (ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 2290 | |
2b008701 CF |
2291 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
2292 | { | |
d50a0ce2 CV |
2293 | error (_("Can't detach process %u (error %u)"), |
2294 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 2295 | detached = 0; |
02cc9f49 | 2296 | } |
2b008701 CF |
2297 | DebugSetProcessKillOnExit (FALSE); |
2298 | ||
02cc9f49 | 2299 | if (detached && from_tty) |
24e60978 | 2300 | { |
a121b7c1 | 2301 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2302 | if (exec_file == 0) |
2303 | exec_file = ""; | |
d50a0ce2 CV |
2304 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
2305 | (unsigned) current_event.dwProcessId); | |
24e60978 | 2306 | } |
7f9f62ba | 2307 | |
df7e5265 | 2308 | x86_cleanup_dregs (); |
39f77062 | 2309 | inferior_ptid = null_ptid; |
b7a08269 | 2310 | detach_inferior (inf); |
7f9f62ba | 2311 | |
f6ac5f3d | 2312 | maybe_unpush_target (); |
24e60978 SC |
2313 | } |
2314 | ||
47f7ffdb JB |
2315 | /* Try to determine the executable filename. |
2316 | ||
2317 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
2318 | ||
2319 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
2320 | this function returns nonzero. | |
2321 | ||
2322 | Otherwise, this function returns zero and the contents of | |
2323 | EXE_NAME_RET is undefined. */ | |
2324 | ||
2325 | static int | |
2326 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
2327 | { | |
2328 | DWORD len; | |
2329 | HMODULE dh_buf; | |
2330 | DWORD cbNeeded; | |
2331 | ||
2332 | cbNeeded = 0; | |
46f9f931 HD |
2333 | #ifdef __x86_64__ |
2334 | if (wow64_process) | |
2335 | { | |
2336 | if (!EnumProcessModulesEx (current_process_handle, &dh_buf, | |
2337 | sizeof (HMODULE), &cbNeeded, | |
2338 | LIST_MODULES_32BIT) || !cbNeeded) | |
2339 | return 0; | |
2340 | } | |
2341 | else | |
2342 | #endif | |
2343 | { | |
2344 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
2345 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
2346 | return 0; | |
2347 | } | |
47f7ffdb JB |
2348 | |
2349 | /* We know the executable is always first in the list of modules, | |
2350 | which we just fetched. So no need to fetch more. */ | |
2351 | ||
2352 | #ifdef __CYGWIN__ | |
2353 | { | |
2354 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
2355 | the filename into a temporary buffer first, and then convert it | |
2356 | to POSIX format into the destination buffer. */ | |
0ae534d2 | 2357 | cygwin_buf_t *pathbuf = (cygwin_buf_t *) alloca (exe_name_max_len * sizeof (cygwin_buf_t)); |
47f7ffdb JB |
2358 | |
2359 | len = GetModuleFileNameEx (current_process_handle, | |
2360 | dh_buf, pathbuf, exe_name_max_len); | |
2361 | if (len == 0) | |
2362 | error (_("Error getting executable filename: %u."), | |
2363 | (unsigned) GetLastError ()); | |
2364 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
2365 | exe_name_max_len) < 0) | |
2366 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
2367 | } | |
2368 | #else | |
2369 | len = GetModuleFileNameEx (current_process_handle, | |
2370 | dh_buf, exe_name_ret, exe_name_max_len); | |
2371 | if (len == 0) | |
2372 | error (_("Error getting executable filename: %u."), | |
2373 | (unsigned) GetLastError ()); | |
2374 | #endif | |
2375 | ||
2376 | return 1; /* success */ | |
2377 | } | |
2378 | ||
2379 | /* The pid_to_exec_file target_ops method for this platform. */ | |
2380 | ||
f6ac5f3d PA |
2381 | char * |
2382 | windows_nat_target::pid_to_exec_file (int pid) | |
47216e51 | 2383 | { |
b3c613f2 | 2384 | static char path[__PMAX]; |
10325bc5 | 2385 | #ifdef __CYGWIN__ |
581e13c1 | 2386 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
2387 | int nchars; |
2388 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
2389 | |
2390 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
2391 | nchars = readlink (procexe, path, sizeof(path)); |
2392 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 2393 | { |
33605d39 CF |
2394 | path[nchars] = '\0'; /* Got it */ |
2395 | return path; | |
47216e51 | 2396 | } |
10325bc5 PA |
2397 | #endif |
2398 | ||
33605d39 | 2399 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 2400 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 2401 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
2402 | path[0] = '\0'; |
2403 | ||
2404 | return path; | |
47216e51 CV |
2405 | } |
2406 | ||
24e60978 SC |
2407 | /* Print status information about what we're accessing. */ |
2408 | ||
f6ac5f3d PA |
2409 | void |
2410 | windows_nat_target::files_info () | |
24e60978 | 2411 | { |
181e7f93 PA |
2412 | struct inferior *inf = current_inferior (); |
2413 | ||
24e60978 | 2414 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 | 2415 | inf->attach_flag ? "attached" : "child", |
a068643d | 2416 | target_pid_to_str (inferior_ptid).c_str ()); |
24e60978 SC |
2417 | } |
2418 | ||
cd44747c PM |
2419 | /* Modify CreateProcess parameters for use of a new separate console. |
2420 | Parameters are: | |
2421 | *FLAGS: DWORD parameter for general process creation flags. | |
2422 | *SI: STARTUPINFO structure, for which the console window size and | |
2423 | console buffer size is filled in if GDB is running in a console. | |
2424 | to create the new console. | |
2425 | The size of the used font is not available on all versions of | |
2426 | Windows OS. Furthermore, the current font might not be the default | |
2427 | font, but this is still better than before. | |
2428 | If the windows and buffer sizes are computed, | |
2429 | SI->DWFLAGS is changed so that this information is used | |
2430 | by CreateProcess function. */ | |
2431 | ||
2432 | static void | |
2433 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
2434 | { | |
2435 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
2436 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
2437 | ||
2438 | if (hconsole != INVALID_HANDLE_VALUE) | |
2439 | { | |
2440 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2441 | COORD font_size; | |
2442 | CONSOLE_FONT_INFO cfi; | |
2443 | ||
2444 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2445 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2446 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2447 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2448 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2449 | if (font_size.X) | |
2450 | si->dwXSize *= font_size.X; | |
2451 | else | |
2452 | si->dwXSize *= 8; | |
2453 | if (font_size.Y) | |
2454 | si->dwYSize *= font_size.Y; | |
2455 | else | |
2456 | si->dwYSize *= 12; | |
2457 | si->dwXCountChars = sbinfo.dwSize.X; | |
2458 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2459 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2460 | } | |
2461 | *flags |= CREATE_NEW_CONSOLE; | |
2462 | } | |
2463 | ||
c93dbcba EZ |
2464 | #ifndef __CYGWIN__ |
2465 | /* Function called by qsort to sort environment strings. */ | |
2466 | ||
2467 | static int | |
2468 | envvar_cmp (const void *a, const void *b) | |
2469 | { | |
2470 | const char **p = (const char **) a; | |
2471 | const char **q = (const char **) b; | |
2472 | return strcasecmp (*p, *q); | |
2473 | } | |
2474 | #endif | |
2475 | ||
b7ff339d CV |
2476 | #ifdef __CYGWIN__ |
2477 | static void | |
2478 | clear_win32_environment (char **env) | |
2479 | { | |
2480 | int i; | |
2481 | size_t len; | |
2482 | wchar_t *copy = NULL, *equalpos; | |
2483 | ||
2484 | for (i = 0; env[i] && *env[i]; i++) | |
2485 | { | |
2486 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2487 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2488 | mbstowcs (copy, env[i], len); | |
2489 | equalpos = wcschr (copy, L'='); | |
2490 | if (equalpos) | |
2491 | *equalpos = L'\0'; | |
2492 | SetEnvironmentVariableW (copy, NULL); | |
2493 | } | |
2494 | xfree (copy); | |
2495 | } | |
2496 | #endif | |
2497 | ||
8ba42bc5 EZ |
2498 | #ifndef __CYGWIN__ |
2499 | ||
2500 | /* Redirection of inferior I/O streams for native MS-Windows programs. | |
2501 | Unlike on Unix, where this is handled by invoking the inferior via | |
2502 | the shell, on MS-Windows we need to emulate the cmd.exe shell. | |
2503 | ||
2504 | The official documentation of the cmd.exe redirection features is here: | |
2505 | ||
2506 | http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/redirection.mspx | |
2507 | ||
2508 | (That page talks about Windows XP, but there's no newer | |
2509 | documentation, so we assume later versions of cmd.exe didn't change | |
2510 | anything.) | |
2511 | ||
2512 | Caveat: the documentation on that page seems to include a few lies. | |
2513 | For example, it describes strange constructs 1<&2 and 2<&1, which | |
2514 | seem to work only when 1>&2 resp. 2>&1 would make sense, and so I | |
2515 | think the cmd.exe parser of the redirection symbols simply doesn't | |
2516 | care about the < vs > distinction in these cases. Therefore, the | |
2517 | supported features are explicitly documented below. | |
2518 | ||
2519 | The emulation below aims at supporting all the valid use cases | |
2520 | supported by cmd.exe, which include: | |
2521 | ||
2522 | < FILE redirect standard input from FILE | |
2523 | 0< FILE redirect standard input from FILE | |
2524 | <&N redirect standard input from file descriptor N | |
2525 | 0<&N redirect standard input from file descriptor N | |
2526 | > FILE redirect standard output to FILE | |
2527 | >> FILE append standard output to FILE | |
2528 | 1>> FILE append standard output to FILE | |
2529 | >&N redirect standard output to file descriptor N | |
2530 | 1>&N redirect standard output to file descriptor N | |
2531 | >>&N append standard output to file descriptor N | |
2532 | 1>>&N append standard output to file descriptor N | |
2533 | 2> FILE redirect standard error to FILE | |
2534 | 2>> FILE append standard error to FILE | |
2535 | 2>&N redirect standard error to file descriptor N | |
2536 | 2>>&N append standard error to file descriptor N | |
2537 | ||
2538 | Note that using N > 2 in the above construct is supported, but | |
2539 | requires that the corresponding file descriptor be open by some | |
2540 | means elsewhere or outside GDB. Also note that using ">&0" or | |
2541 | "<&2" will generally fail, because the file descriptor redirected | |
2542 | from is normally open in an incompatible mode (e.g., FD 0 is open | |
2543 | for reading only). IOW, use of such tricks is not recommended; | |
2544 | you are on your own. | |
2545 | ||
2546 | We do NOT support redirection of file descriptors above 2, as in | |
2547 | "3>SOME-FILE", because MinGW compiled programs don't (supporting | |
2548 | that needs special handling in the startup code that MinGW | |
2549 | doesn't have). Pipes are also not supported. | |
2550 | ||
2551 | As for invalid use cases, where the redirection contains some | |
2552 | error, the emulation below will detect that and produce some | |
2553 | error and/or failure. But the behavior in those cases is not | |
2554 | bug-for-bug compatible with what cmd.exe does in those cases. | |
2555 | That's because what cmd.exe does then is not well defined, and | |
2556 | seems to be a side effect of the cmd.exe parsing of the command | |
2557 | line more than anything else. For example, try redirecting to an | |
2558 | invalid file name, as in "> foo:bar". | |
2559 | ||
2560 | There are also minor syntactic deviations from what cmd.exe does | |
2561 | in some corner cases. For example, it doesn't support the likes | |
2562 | of "> &foo" to mean redirect to file named literally "&foo"; we | |
2563 | do support that here, because that, too, sounds like some issue | |
2564 | with the cmd.exe parser. Another nicety is that we support | |
2565 | redirection targets that use file names with forward slashes, | |
2566 | something cmd.exe doesn't -- this comes in handy since GDB | |
2567 | file-name completion can be used when typing the command line for | |
2568 | the inferior. */ | |
2569 | ||
2570 | /* Support routines for redirecting standard handles of the inferior. */ | |
2571 | ||
2572 | /* Parse a single redirection spec, open/duplicate the specified | |
2573 | file/fd, and assign the appropriate value to one of the 3 standard | |
2574 | file descriptors. */ | |
2575 | static int | |
2576 | redir_open (const char *redir_string, int *inp, int *out, int *err) | |
2577 | { | |
2578 | int *fd, ref_fd = -2; | |
2579 | int mode; | |
2580 | const char *fname = redir_string + 1; | |
2581 | int rc = *redir_string; | |
2582 | ||
2583 | switch (rc) | |
2584 | { | |
2585 | case '0': | |
2586 | fname++; | |
2587 | /* FALLTHROUGH */ | |
2588 | case '<': | |
2589 | fd = inp; | |
2590 | mode = O_RDONLY; | |
2591 | break; | |
2592 | case '1': case '2': | |
2593 | fname++; | |
2594 | /* FALLTHROUGH */ | |
2595 | case '>': | |
2596 | fd = (rc == '2') ? err : out; | |
2597 | mode = O_WRONLY | O_CREAT; | |
2598 | if (*fname == '>') | |
2599 | { | |
2600 | fname++; | |
2601 | mode |= O_APPEND; | |
2602 | } | |
2603 | else | |
2604 | mode |= O_TRUNC; | |
2605 | break; | |
2606 | default: | |
2607 | return -1; | |
2608 | } | |
2609 | ||
2610 | if (*fname == '&' && '0' <= fname[1] && fname[1] <= '9') | |
2611 | { | |
2612 | /* A reference to a file descriptor. */ | |
2613 | char *fdtail; | |
2614 | ref_fd = (int) strtol (fname + 1, &fdtail, 10); | |
2615 | if (fdtail > fname + 1 && *fdtail == '\0') | |
2616 | { | |
2617 | /* Don't allow redirection when open modes are incompatible. */ | |
2618 | if ((ref_fd == 0 && (fd == out || fd == err)) | |
2619 | || ((ref_fd == 1 || ref_fd == 2) && fd == inp)) | |
2620 | { | |
2621 | errno = EPERM; | |
2622 | return -1; | |
2623 | } | |
2624 | if (ref_fd == 0) | |
2625 | ref_fd = *inp; | |
2626 | else if (ref_fd == 1) | |
2627 | ref_fd = *out; | |
2628 | else if (ref_fd == 2) | |
2629 | ref_fd = *err; | |
2630 | } | |
2631 | else | |
2632 | { | |
2633 | errno = EBADF; | |
2634 | return -1; | |
2635 | } | |
2636 | } | |
2637 | else | |
2638 | fname++; /* skip the separator space */ | |
2639 | /* If the descriptor is already open, close it. This allows | |
2640 | multiple specs of redirections for the same stream, which is | |
2641 | somewhat nonsensical, but still valid and supported by cmd.exe. | |
2642 | (But cmd.exe only opens a single file in this case, the one | |
2643 | specified by the last redirection spec on the command line.) */ | |
2644 | if (*fd >= 0) | |
2645 | _close (*fd); | |
2646 | if (ref_fd == -2) | |
2647 | { | |
2648 | *fd = _open (fname, mode, _S_IREAD | _S_IWRITE); | |
2649 | if (*fd < 0) | |
2650 | return -1; | |
2651 | } | |
2652 | else if (ref_fd == -1) | |
2653 | *fd = -1; /* reset to default destination */ | |
2654 | else | |
2655 | { | |
2656 | *fd = _dup (ref_fd); | |
2657 | if (*fd < 0) | |
2658 | return -1; | |
2659 | } | |
2660 | /* _open just sets a flag for O_APPEND, which won't be passed to the | |
2661 | inferior, so we need to actually move the file pointer. */ | |
2662 | if ((mode & O_APPEND) != 0) | |
2663 | _lseek (*fd, 0L, SEEK_END); | |
2664 | return 0; | |
2665 | } | |
2666 | ||
2667 | /* Canonicalize a single redirection spec and set up the corresponding | |
2668 | file descriptor as specified. */ | |
2669 | static int | |
2670 | redir_set_redirection (const char *s, int *inp, int *out, int *err) | |
2671 | { | |
2672 | char buf[__PMAX + 2 + 5]; /* extra space for quotes & redirection string */ | |
2673 | char *d = buf; | |
2674 | const char *start = s; | |
2675 | int quote = 0; | |
2676 | ||
2677 | *d++ = *s++; /* copy the 1st character, < or > or a digit */ | |
2678 | if ((*start == '>' || *start == '1' || *start == '2') | |
2679 | && *s == '>') | |
2680 | { | |
2681 | *d++ = *s++; | |
2682 | if (*s == '>' && *start != '>') | |
2683 | *d++ = *s++; | |
2684 | } | |
2685 | else if (*start == '0' && *s == '<') | |
2686 | *d++ = *s++; | |
2687 | /* cmd.exe recognizes "&N" only immediately after the redirection symbol. */ | |
2688 | if (*s != '&') | |
2689 | { | |
2690 | while (isspace (*s)) /* skip whitespace before file name */ | |
2691 | s++; | |
2692 | *d++ = ' '; /* separate file name with a single space */ | |
2693 | } | |
2694 | ||
2695 | /* Copy the file name. */ | |
2696 | while (*s) | |
2697 | { | |
2698 | /* Remove quoting characters from the file name in buf[]. */ | |
2699 | if (*s == '"') /* could support '..' quoting here */ | |
2700 | { | |
2701 | if (!quote) | |
2702 | quote = *s++; | |
2703 | else if (*s == quote) | |
2704 | { | |
2705 | quote = 0; | |
2706 | s++; | |
2707 | } | |
2708 | else | |
2709 | *d++ = *s++; | |
2710 | } | |
2711 | else if (*s == '\\') | |
2712 | { | |
2713 | if (s[1] == '"') /* could support '..' here */ | |
2714 | s++; | |
2715 | *d++ = *s++; | |
2716 | } | |
2717 | else if (isspace (*s) && !quote) | |
2718 | break; | |
2719 | else | |
2720 | *d++ = *s++; | |
2721 | if (d - buf >= sizeof (buf) - 1) | |
2722 | { | |
2723 | errno = ENAMETOOLONG; | |
2724 | return 0; | |
2725 | } | |
2726 | } | |
2727 | *d = '\0'; | |
2728 | ||
2729 | /* Windows doesn't allow redirection characters in file names, so we | |
2730 | can bail out early if they use them, or if there's no target file | |
2731 | name after the redirection symbol. */ | |
2732 | if (d[-1] == '>' || d[-1] == '<') | |
2733 | { | |
2734 | errno = ENOENT; | |
2735 | return 0; | |
2736 | } | |
2737 | if (redir_open (buf, inp, out, err) == 0) | |
2738 | return s - start; | |
2739 | return 0; | |
2740 | } | |
2741 | ||
2742 | /* Parse the command line for redirection specs and prepare the file | |
2743 | descriptors for the 3 standard streams accordingly. */ | |
2744 | static bool | |
2745 | redirect_inferior_handles (const char *cmd_orig, char *cmd, | |
2746 | int *inp, int *out, int *err) | |
2747 | { | |
2748 | const char *s = cmd_orig; | |
2749 | char *d = cmd; | |
2750 | int quote = 0; | |
2751 | bool retval = false; | |
2752 | ||
2753 | while (isspace (*s)) | |
2754 | *d++ = *s++; | |
2755 | ||
2756 | while (*s) | |
2757 | { | |
2758 | if (*s == '"') /* could also support '..' quoting here */ | |
2759 | { | |
2760 | if (!quote) | |
2761 | quote = *s; | |
2762 | else if (*s == quote) | |
2763 | quote = 0; | |
2764 | } | |
2765 | else if (*s == '\\') | |
2766 | { | |
2767 | if (s[1] == '"') /* escaped quote char */ | |
2768 | s++; | |
2769 | } | |
2770 | else if (!quote) | |
2771 | { | |
2772 | /* Process a single redirection candidate. */ | |
2773 | if (*s == '<' || *s == '>' | |
2774 | || ((*s == '1' || *s == '2') && s[1] == '>') | |
2775 | || (*s == '0' && s[1] == '<')) | |
2776 | { | |
2777 | int skip = redir_set_redirection (s, inp, out, err); | |
2778 | ||
2779 | if (skip <= 0) | |
2780 | return false; | |
2781 | retval = true; | |
2782 | s += skip; | |
2783 | } | |
2784 | } | |
2785 | if (*s) | |
2786 | *d++ = *s++; | |
2787 | } | |
2788 | *d = '\0'; | |
2789 | return retval; | |
2790 | } | |
2791 | #endif /* !__CYGWIN__ */ | |
2792 | ||
dc05df57 | 2793 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2794 | EXEC_FILE is the file to run. |
2795 | ALLARGS is a string containing the arguments to the program. | |
2796 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2797 | ||
f6ac5f3d PA |
2798 | void |
2799 | windows_nat_target::create_inferior (const char *exec_file, | |
2800 | const std::string &origallargs, | |
2801 | char **in_env, int from_tty) | |
24e60978 | 2802 | { |
b3c613f2 | 2803 | STARTUPINFO si; |
41b4aadc | 2804 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2805 | cygwin_buf_t real_path[__PMAX]; |
2806 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d092c5a2 | 2807 | cygwin_buf_t infcwd[__PMAX]; |
d0d0ab16 | 2808 | const char *sh; |
b3c613f2 CF |
2809 | cygwin_buf_t *toexec; |
2810 | cygwin_buf_t *cygallargs; | |
2811 | cygwin_buf_t *args; | |
b7ff339d CV |
2812 | char **old_env = NULL; |
2813 | PWCHAR w32_env; | |
d0d0ab16 | 2814 | size_t len; |
2becadee CF |
2815 | int tty; |
2816 | int ostdin, ostdout, ostderr; | |
8ba42bc5 | 2817 | #else /* !__CYGWIN__ */ |
b3c613f2 | 2818 | char shell[__PMAX]; /* Path to shell */ |
5430098f | 2819 | const char *toexec; |
8ba42bc5 EZ |
2820 | char *args, *allargs_copy; |
2821 | size_t args_len, allargs_len; | |
2822 | int fd_inp = -1, fd_out = -1, fd_err = -1; | |
2823 | HANDLE tty = INVALID_HANDLE_VALUE; | |
8ba42bc5 | 2824 | bool redirected = false; |
c93dbcba EZ |
2825 | char *w32env; |
2826 | char *temp; | |
2827 | size_t envlen; | |
2828 | int i; | |
2829 | size_t envsize; | |
2830 | char **env; | |
8ba42bc5 | 2831 | #endif /* !__CYGWIN__ */ |
096c92dd | 2832 | const char *allargs = origallargs.c_str (); |
d0d0ab16 CV |
2833 | PROCESS_INFORMATION pi; |
2834 | BOOL ret; | |
2835 | DWORD flags = 0; | |
3cb3b8df | 2836 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2837 | |
2838 | if (!exec_file) | |
8a3fe4f8 | 2839 | error (_("No executable specified, use `target exec'.")); |
24e60978 | 2840 | |
d092c5a2 SDJ |
2841 | const char *inferior_cwd = get_inferior_cwd (); |
2842 | std::string expanded_infcwd; | |
2843 | if (inferior_cwd != NULL) | |
2844 | { | |
2845 | expanded_infcwd = gdb_tilde_expand (inferior_cwd); | |
2846 | /* Mirror slashes on inferior's cwd. */ | |
2847 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), | |
2848 | '/', '\\'); | |
2849 | inferior_cwd = expanded_infcwd.c_str (); | |
2850 | } | |
2851 | ||
24e60978 SC |
2852 | memset (&si, 0, sizeof (si)); |
2853 | si.cb = sizeof (si); | |
2854 | ||
d0d0ab16 CV |
2855 | if (new_group) |
2856 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2857 | ||
2858 | if (new_console) | |
cd44747c | 2859 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2860 | |
10325bc5 | 2861 | #ifdef __CYGWIN__ |
349b409f | 2862 | if (!useshell) |
dfe7f3ac | 2863 | { |
d0d0ab16 CV |
2864 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2865 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2866 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2867 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2868 | toexec = real_path; |
b3c613f2 | 2869 | #ifdef __USEWIDE |
d0d0ab16 CV |
2870 | len = mbstowcs (NULL, allargs, 0) + 1; |
2871 | if (len == (size_t) -1) | |
2872 | error (_("Error starting executable: %d"), errno); | |
2873 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2874 | mbstowcs (cygallargs, allargs, len); | |
8ba42bc5 | 2875 | #else /* !__USEWIDE */ |
60c5c021 | 2876 | cygallargs = allargs; |
b3c613f2 | 2877 | #endif |
dfe7f3ac CF |
2878 | } |
2879 | else | |
2880 | { | |
974e6844 | 2881 | sh = get_shell (); |
b3c613f2 | 2882 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2883 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2884 | #ifdef __USEWIDE |
d0d0ab16 CV |
2885 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2886 | + mbstowcs (NULL, allargs, 0) + 2; | |
2887 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2888 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2889 | #else /* !__USEWIDE */ |
08850b56 PM |
2890 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2891 | + strlen (allargs) + 2); | |
2892 | cygallargs = (char *) alloca (len); | |
2893 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2894 | #endif /* __USEWIDE */ |
dfe7f3ac | 2895 | toexec = shell; |
d0d0ab16 | 2896 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2897 | } |
b3c613f2 | 2898 | |
d092c5a2 SDJ |
2899 | if (inferior_cwd != NULL |
2900 | && cygwin_conv_path (CCP_POSIX_TO_WIN_W, inferior_cwd, | |
2901 | infcwd, strlen (inferior_cwd)) < 0) | |
2902 | error (_("Error converting inferior cwd: %d"), errno); | |
2903 | ||
b3c613f2 CF |
2904 | #ifdef __USEWIDE |
2905 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2906 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2907 | wcscpy (args, toexec); |
2908 | wcscat (args, L" "); | |
2909 | wcscat (args, cygallargs); | |
8ba42bc5 | 2910 | #else /* !__USEWIDE */ |
b3c613f2 CF |
2911 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); |
2912 | strcpy (args, toexec); | |
2913 | strcat (args, " "); | |
2914 | strcat (args, cygallargs); | |
8ba42bc5 | 2915 | #endif /* !__USEWIDE */ |
b3c613f2 | 2916 | |
b7ff339d CV |
2917 | #ifdef CW_CVT_ENV_TO_WINENV |
2918 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2919 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2920 | if (w32_env != (PWCHAR) -1) | |
2921 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2922 | else | |
2923 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
8ba42bc5 | 2924 | #endif /* CW_CVT_ENV_TO_WINENV */ |
b7ff339d CV |
2925 | { |
2926 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2927 | clear_win32_environment (environ); | |
2928 | /* Prepare the environment vars for CreateProcess. */ | |
2929 | old_env = environ; | |
2930 | environ = in_env; | |
2931 | cygwin_internal (CW_SYNC_WINENV); | |
2932 | w32_env = NULL; | |
2933 | } | |
1750a5ef | 2934 | |
2becadee CF |
2935 | if (!inferior_io_terminal) |
2936 | tty = ostdin = ostdout = ostderr = -1; | |
2937 | else | |
2938 | { | |
2939 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2940 | if (tty < 0) | |
2941 | { | |
2942 | print_sys_errmsg (inferior_io_terminal, errno); | |
2943 | ostdin = ostdout = ostderr = -1; | |
2944 | } | |
2945 | else | |
2946 | { | |
2947 | ostdin = dup (0); | |
2948 | ostdout = dup (1); | |
2949 | ostderr = dup (2); | |
2950 | dup2 (tty, 0); | |
2951 | dup2 (tty, 1); | |
2952 | dup2 (tty, 2); | |
2953 | } | |
2954 | } | |
d0d0ab16 CV |
2955 | |
2956 | windows_init_thread_list (); | |
b3c613f2 CF |
2957 | ret = CreateProcess (0, |
2958 | args, /* command line */ | |
2959 | NULL, /* Security */ | |
2960 | NULL, /* thread */ | |
2961 | TRUE, /* inherit handles */ | |
2962 | flags, /* start flags */ | |
b7ff339d | 2963 | w32_env, /* environment */ |
d092c5a2 SDJ |
2964 | inferior_cwd != NULL ? infcwd : NULL, /* current |
2965 | directory */ | |
b3c613f2 CF |
2966 | &si, |
2967 | &pi); | |
b7ff339d CV |
2968 | if (w32_env) |
2969 | /* Just free the Win32 environment, if it could be created. */ | |
2970 | free (w32_env); | |
2971 | else | |
2972 | { | |
2973 | /* Reset all environment variables to avoid leftover on next run. */ | |
2974 | clear_win32_environment (in_env); | |
2975 | /* Restore normal GDB environment variables. */ | |
2976 | environ = old_env; | |
2977 | cygwin_internal (CW_SYNC_WINENV); | |
2978 | } | |
2979 | ||
d0d0ab16 CV |
2980 | if (tty >= 0) |
2981 | { | |
6af79d7b | 2982 | ::close (tty); |
d0d0ab16 CV |
2983 | dup2 (ostdin, 0); |
2984 | dup2 (ostdout, 1); | |
2985 | dup2 (ostderr, 2); | |
6af79d7b JT |
2986 | ::close (ostdin); |
2987 | ::close (ostdout); | |
2988 | ::close (ostderr); | |
d0d0ab16 | 2989 | } |
8ba42bc5 EZ |
2990 | #else /* !__CYGWIN__ */ |
2991 | allargs_len = strlen (allargs); | |
2992 | allargs_copy = strcpy ((char *) alloca (allargs_len + 1), allargs); | |
2993 | if (strpbrk (allargs_copy, "<>") != NULL) | |
2994 | { | |
2995 | int e = errno; | |
2996 | errno = 0; | |
2997 | redirected = | |
2998 | redirect_inferior_handles (allargs, allargs_copy, | |
2999 | &fd_inp, &fd_out, &fd_err); | |
3000 | if (errno) | |
6d91ce9a | 3001 | warning (_("Error in redirection: %s."), safe_strerror (errno)); |
8ba42bc5 EZ |
3002 | else |
3003 | errno = e; | |
3004 | allargs_len = strlen (allargs_copy); | |
3005 | } | |
3006 | /* If not all the standard streams are redirected by the command | |
3007 | line, use inferior_io_terminal for those which aren't. */ | |
3008 | if (inferior_io_terminal | |
3009 | && !(fd_inp >= 0 && fd_out >= 0 && fd_err >= 0)) | |
41b4aadc CF |
3010 | { |
3011 | SECURITY_ATTRIBUTES sa; | |
3012 | sa.nLength = sizeof(sa); | |
3013 | sa.lpSecurityDescriptor = 0; | |
3014 | sa.bInheritHandle = TRUE; | |
3015 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
3016 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
3017 | if (tty == INVALID_HANDLE_VALUE) | |
3018 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
3019 | inferior_io_terminal, (unsigned) GetLastError ()); | |
8ba42bc5 EZ |
3020 | } |
3021 | if (redirected || tty != INVALID_HANDLE_VALUE) | |
3022 | { | |
3023 | if (fd_inp >= 0) | |
3024 | si.hStdInput = (HANDLE) _get_osfhandle (fd_inp); | |
3025 | else if (tty != INVALID_HANDLE_VALUE) | |
3026 | si.hStdInput = tty; | |
41b4aadc | 3027 | else |
8ba42bc5 EZ |
3028 | si.hStdInput = GetStdHandle (STD_INPUT_HANDLE); |
3029 | if (fd_out >= 0) | |
3030 | si.hStdOutput = (HANDLE) _get_osfhandle (fd_out); | |
3031 | else if (tty != INVALID_HANDLE_VALUE) | |
3032 | si.hStdOutput = tty; | |
3033 | else | |
3034 | si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE); | |
3035 | if (fd_err >= 0) | |
3036 | si.hStdError = (HANDLE) _get_osfhandle (fd_err); | |
3037 | else if (tty != INVALID_HANDLE_VALUE) | |
3038 | si.hStdError = tty; | |
3039 | else | |
3040 | si.hStdError = GetStdHandle (STD_ERROR_HANDLE); | |
3041 | si.dwFlags |= STARTF_USESTDHANDLES; | |
41b4aadc | 3042 | } |
2becadee | 3043 | |
8ba42bc5 EZ |
3044 | toexec = exec_file; |
3045 | /* Build the command line, a space-separated list of tokens where | |
3046 | the first token is the name of the module to be executed. | |
3047 | To avoid ambiguities introduced by spaces in the module name, | |
3048 | we quote it. */ | |
3049 | args_len = strlen (toexec) + 2 /* quotes */ + allargs_len + 2; | |
3050 | args = (char *) alloca (args_len); | |
3051 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs_copy); | |
3052 | ||
3053 | flags |= DEBUG_ONLY_THIS_PROCESS; | |
3054 | ||
c93dbcba EZ |
3055 | /* CreateProcess takes the environment list as a null terminated set of |
3056 | strings (i.e. two nulls terminate the list). */ | |
3057 | ||
3058 | /* Get total size for env strings. */ | |
3059 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
3060 | envlen += strlen (in_env[i]) + 1; | |
3061 | ||
3062 | envsize = sizeof (in_env[0]) * (i + 1); | |
3063 | env = (char **) alloca (envsize); | |
3064 | memcpy (env, in_env, envsize); | |
3065 | /* Windows programs expect the environment block to be sorted. */ | |
3066 | qsort (env, i, sizeof (char *), envvar_cmp); | |
3067 | ||
0ae1c716 | 3068 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
3069 | |
3070 | /* Copy env strings into new buffer. */ | |
3071 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
3072 | { | |
3073 | strcpy (temp, env[i]); | |
3074 | temp += strlen (temp) + 1; | |
3075 | } | |
3076 | ||
3077 | /* Final nil string to terminate new env. */ | |
3078 | *temp = 0; | |
3079 | ||
dc05df57 | 3080 | windows_init_thread_list (); |
d0d0ab16 CV |
3081 | ret = CreateProcessA (0, |
3082 | args, /* command line */ | |
3083 | NULL, /* Security */ | |
3084 | NULL, /* thread */ | |
3085 | TRUE, /* inherit handles */ | |
3086 | flags, /* start flags */ | |
c93dbcba | 3087 | w32env, /* environment */ |
d092c5a2 | 3088 | inferior_cwd, /* current directory */ |
d0d0ab16 CV |
3089 | &si, |
3090 | &pi); | |
41b4aadc CF |
3091 | if (tty != INVALID_HANDLE_VALUE) |
3092 | CloseHandle (tty); | |
8ba42bc5 EZ |
3093 | if (fd_inp >= 0) |
3094 | _close (fd_inp); | |
3095 | if (fd_out >= 0) | |
3096 | _close (fd_out); | |
3097 | if (fd_err >= 0) | |
3098 | _close (fd_err); | |
3099 | #endif /* !__CYGWIN__ */ | |
2becadee | 3100 | |
24e60978 | 3101 | if (!ret) |
d50a0ce2 | 3102 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 3103 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 3104 | |
46f9f931 HD |
3105 | #ifdef __x86_64__ |
3106 | BOOL wow64; | |
3107 | if (IsWow64Process (pi.hProcess, &wow64)) | |
3108 | wow64_process = wow64; | |
3109 | #endif | |
3110 | ||
c1766e7d PM |
3111 | CloseHandle (pi.hThread); |
3112 | CloseHandle (pi.hProcess); | |
3113 | ||
dfe7f3ac CF |
3114 | if (useshell && shell[0] != '\0') |
3115 | saw_create = -1; | |
3116 | else | |
3117 | saw_create = 0; | |
3118 | ||
f6ac5f3d | 3119 | do_initial_windows_stuff (this, pi.dwProcessId, 0); |
d3a09475 | 3120 | |
17617f2d | 3121 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
3122 | } |
3123 | ||
f6ac5f3d PA |
3124 | void |
3125 | windows_nat_target::mourn_inferior () | |
24e60978 | 3126 | { |
17617f2d | 3127 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 3128 | x86_cleanup_dregs(); |
bf25528d CF |
3129 | if (open_process_used) |
3130 | { | |
3131 | CHECK (CloseHandle (current_process_handle)); | |
3132 | open_process_used = 0; | |
3133 | } | |
7928d571 | 3134 | siginfo_er.ExceptionCode = 0; |
f6ac5f3d | 3135 | inf_child_target::mourn_inferior (); |
24e60978 SC |
3136 | } |
3137 | ||
24e60978 | 3138 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 3139 | ^C on the controlling terminal. */ |
24e60978 | 3140 | |
f6ac5f3d PA |
3141 | void |
3142 | windows_nat_target::interrupt () | |
24e60978 | 3143 | { |
1ef980b9 | 3144 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 3145 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 3146 | registers_changed (); /* refresh register state */ |
24e60978 SC |
3147 | } |
3148 | ||
44f38867 PA |
3149 | /* Helper for windows_xfer_partial that handles memory transfers. |
3150 | Arguments are like target_xfer_partial. */ | |
3151 | ||
9b409511 | 3152 | static enum target_xfer_status |
44f38867 | 3153 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 3154 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 3155 | { |
5732a500 | 3156 | SIZE_T done = 0; |
44f38867 | 3157 | BOOL success; |
9e52adf9 | 3158 | DWORD lasterror = 0; |
44f38867 PA |
3159 | |
3160 | if (writebuf != NULL) | |
24e60978 | 3161 | { |
a2388568 | 3162 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 3163 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3164 | success = WriteProcessMemory (current_process_handle, |
3165 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
3166 | len, &done); | |
9e52adf9 | 3167 | if (!success) |
7126d5c8 | 3168 | lasterror = GetLastError (); |
2b008701 | 3169 | FlushInstructionCache (current_process_handle, |
2c647436 | 3170 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
3171 | } |
3172 | else | |
3173 | { | |
a2388568 | 3174 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 3175 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3176 | success = ReadProcessMemory (current_process_handle, |
3177 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
3178 | len, &done); | |
9e52adf9 | 3179 | if (!success) |
7126d5c8 | 3180 | lasterror = GetLastError (); |
24e60978 | 3181 | } |
9b409511 | 3182 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 3183 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 3184 | return TARGET_XFER_OK; |
9e52adf9 | 3185 | else |
9b409511 | 3186 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
3187 | } |
3188 | ||
f6ac5f3d PA |
3189 | void |
3190 | windows_nat_target::kill () | |
24e60978 | 3191 | { |
3cee93ac CF |
3192 | CHECK (TerminateProcess (current_process_handle, 0)); |
3193 | ||
b5edcb45 ILT |
3194 | for (;;) |
3195 | { | |
17617f2d | 3196 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 3197 | break; |
3cee93ac | 3198 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 3199 | break; |
3cee93ac | 3200 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
3201 | break; |
3202 | } | |
3203 | ||
9eee20eb | 3204 | target_mourn_inferior (inferior_ptid); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
3205 | } |
3206 | ||
f6ac5f3d PA |
3207 | void |
3208 | windows_nat_target::close () | |
24e60978 | 3209 | { |
dc05df57 | 3210 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
e99b03dc | 3211 | inferior_ptid.pid ())); |
24e60978 | 3212 | } |
1ef980b9 | 3213 | |
581e13c1 | 3214 | /* Convert pid to printable format. */ |
a068643d | 3215 | std::string |
f6ac5f3d | 3216 | windows_nat_target::pid_to_str (ptid_t ptid) |
24e60978 | 3217 | { |
7c7411bc TT |
3218 | if (ptid.lwp () != 0) |
3219 | return string_printf ("Thread %d.0x%lx", ptid.pid (), ptid.lwp ()); | |
2dc38344 PA |
3220 | |
3221 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
3222 | } |
3223 | ||
9b409511 | 3224 | static enum target_xfer_status |
dc05df57 | 3225 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
3226 | enum target_object object, const char *annex, |
3227 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
3228 | ULONGEST offset, ULONGEST len, | |
3229 | ULONGEST *xfered_len) | |
3cb8e7f6 | 3230 | { |
de1b3c3d PA |
3231 | struct obstack obstack; |
3232 | const char *buf; | |
3233 | LONGEST len_avail; | |
3cb8e7f6 | 3234 | struct so_list *so; |
3cb8e7f6 | 3235 | |
de1b3c3d | 3236 | if (writebuf) |
2ed4b548 | 3237 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 3238 | |
de1b3c3d PA |
3239 | obstack_init (&obstack); |
3240 | obstack_grow_str (&obstack, "<library-list>\n"); | |
3241 | for (so = solib_start.next; so; so = so->next) | |
d0e449a1 SM |
3242 | { |
3243 | lm_info_windows *li = (lm_info_windows *) so->lm_info; | |
3244 | ||
3245 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) | |
3246 | (uintptr_t) li->load_addr, | |
c162ed3e | 3247 | &li->text_offset, |
d0e449a1 SM |
3248 | target_gdbarch (), &obstack); |
3249 | } | |
de1b3c3d | 3250 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 3251 | |
0ae1c716 | 3252 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
3253 | len_avail = strlen (buf); |
3254 | if (offset >= len_avail) | |
49dc7f4b PM |
3255 | len= 0; |
3256 | else | |
3257 | { | |
3258 | if (len > len_avail - offset) | |
3259 | len = len_avail - offset; | |
3260 | memcpy (readbuf, buf + offset, len); | |
3261 | } | |
3cb8e7f6 | 3262 | |
de1b3c3d | 3263 | obstack_free (&obstack, NULL); |
9b409511 | 3264 | *xfered_len = (ULONGEST) len; |
0837c976 | 3265 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
3266 | } |
3267 | ||
7928d571 HD |
3268 | /* Helper for windows_nat_target::xfer_partial that handles signal info. */ |
3269 | ||
3270 | static enum target_xfer_status | |
3271 | windows_xfer_siginfo (gdb_byte *readbuf, ULONGEST offset, ULONGEST len, | |
3272 | ULONGEST *xfered_len) | |
3273 | { | |
46f9f931 HD |
3274 | char *buf = (char *) &siginfo_er; |
3275 | size_t bufsize = sizeof (siginfo_er); | |
3276 | ||
3277 | #ifdef __x86_64__ | |
3278 | EXCEPTION_RECORD32 er32; | |
3279 | if (wow64_process) | |
3280 | { | |
3281 | buf = (char *) &er32; | |
3282 | bufsize = sizeof (er32); | |
3283 | ||
3284 | er32.ExceptionCode = siginfo_er.ExceptionCode; | |
3285 | er32.ExceptionFlags = siginfo_er.ExceptionFlags; | |
3286 | er32.ExceptionRecord = (uintptr_t) siginfo_er.ExceptionRecord; | |
3287 | er32.ExceptionAddress = (uintptr_t) siginfo_er.ExceptionAddress; | |
3288 | er32.NumberParameters = siginfo_er.NumberParameters; | |
3289 | int i; | |
3290 | for (i = 0; i < EXCEPTION_MAXIMUM_PARAMETERS; i++) | |
3291 | er32.ExceptionInformation[i] = siginfo_er.ExceptionInformation[i]; | |
3292 | } | |
3293 | #endif | |
3294 | ||
7928d571 HD |
3295 | if (siginfo_er.ExceptionCode == 0) |
3296 | return TARGET_XFER_E_IO; | |
3297 | ||
3298 | if (readbuf == nullptr) | |
3299 | return TARGET_XFER_E_IO; | |
3300 | ||
46f9f931 | 3301 | if (offset > bufsize) |
7928d571 HD |
3302 | return TARGET_XFER_E_IO; |
3303 | ||
46f9f931 HD |
3304 | if (offset + len > bufsize) |
3305 | len = bufsize - offset; | |
7928d571 | 3306 | |
46f9f931 | 3307 | memcpy (readbuf, buf + offset, len); |
7928d571 HD |
3308 | *xfered_len = len; |
3309 | ||
3310 | return TARGET_XFER_OK; | |
3311 | } | |
3312 | ||
f6ac5f3d PA |
3313 | enum target_xfer_status |
3314 | windows_nat_target::xfer_partial (enum target_object object, | |
3315 | const char *annex, gdb_byte *readbuf, | |
2f4f025f TT |
3316 | const gdb_byte *writebuf, ULONGEST offset, |
3317 | ULONGEST len, ULONGEST *xfered_len) | |
3cb8e7f6 | 3318 | { |
de1b3c3d | 3319 | switch (object) |
3cb8e7f6 | 3320 | { |
de1b3c3d | 3321 | case TARGET_OBJECT_MEMORY: |
9b409511 | 3322 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
3323 | |
3324 | case TARGET_OBJECT_LIBRARIES: | |
f6ac5f3d | 3325 | return windows_xfer_shared_libraries (this, object, annex, readbuf, |
9b409511 | 3326 | writebuf, offset, len, xfered_len); |
3929abe9 | 3327 | |
7928d571 HD |
3328 | case TARGET_OBJECT_SIGNAL_INFO: |
3329 | return windows_xfer_siginfo (readbuf, offset, len, xfered_len); | |
3330 | ||
de1b3c3d | 3331 | default: |
2f4f025f | 3332 | if (beneath () == NULL) |
178d6a63 JB |
3333 | { |
3334 | /* This can happen when requesting the transfer of unsupported | |
3335 | objects before a program has been started (and therefore | |
3336 | with the current_target having no target beneath). */ | |
3337 | return TARGET_XFER_E_IO; | |
3338 | } | |
2f4f025f TT |
3339 | return beneath ()->xfer_partial (object, annex, |
3340 | readbuf, writebuf, offset, len, | |
3341 | xfered_len); | |
3929abe9 | 3342 | } |
02c5aecd CF |
3343 | } |
3344 | ||
711e434b PM |
3345 | /* Provide thread local base, i.e. Thread Information Block address. |
3346 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
3347 | ||
57810aa7 | 3348 | bool |
f6ac5f3d | 3349 | windows_nat_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) |
711e434b | 3350 | { |
876d1cd7 | 3351 | windows_thread_info *th; |
711e434b | 3352 | |
7c7411bc | 3353 | th = thread_rec (ptid.lwp (), 0); |
711e434b | 3354 | if (th == NULL) |
57810aa7 | 3355 | return false; |
711e434b PM |
3356 | |
3357 | if (addr != NULL) | |
3358 | *addr = th->thread_local_base; | |
3359 | ||
57810aa7 | 3360 | return true; |
711e434b PM |
3361 | } |
3362 | ||
f6ac5f3d PA |
3363 | ptid_t |
3364 | windows_nat_target::get_ada_task_ptid (long lwp, long thread) | |
1e2f1c5c | 3365 | { |
7c7411bc | 3366 | return ptid_t (inferior_ptid.pid (), lwp, 0); |
1e2f1c5c JB |
3367 | } |
3368 | ||
24cdb46e РИ |
3369 | /* Implementation of the to_thread_name method. */ |
3370 | ||
f6ac5f3d PA |
3371 | const char * |
3372 | windows_nat_target::thread_name (struct thread_info *thr) | |
24cdb46e | 3373 | { |
7c7411bc | 3374 | return thread_rec (thr->ptid.lwp (), 0)->name.get (); |
24cdb46e РИ |
3375 | } |
3376 | ||
24e60978 | 3377 | |
6c265988 | 3378 | void _initialize_windows_nat (); |
24e60978 | 3379 | void |
6c265988 | 3380 | _initialize_windows_nat () |
24e60978 | 3381 | { |
df7e5265 GB |
3382 | x86_dr_low.set_control = cygwin_set_dr7; |
3383 | x86_dr_low.set_addr = cygwin_set_dr; | |
3384 | x86_dr_low.get_addr = cygwin_get_dr; | |
3385 | x86_dr_low.get_status = cygwin_get_dr6; | |
3386 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 3387 | |
df7e5265 GB |
3388 | /* x86_dr_low.debug_register_length field is set by |
3389 | calling x86_set_debug_register_length function | |
51a9c8c5 | 3390 | in processor windows specific native file. */ |
fa58ee11 | 3391 | |
d9f719f1 | 3392 | add_inf_child_target (&the_windows_nat_target); |
1ef980b9 | 3393 | |
d0d0ab16 CV |
3394 | #ifdef __CYGWIN__ |
3395 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
3396 | #endif | |
3397 | ||
463888ab РИ |
3398 | add_com ("signal-event", class_run, signal_event_command, _("\ |
3399 | Signal a crashed process with event ID, to allow its debugging.\n\ | |
3400 | This command is needed in support of setting up GDB as JIT debugger on \ | |
3401 | MS-Windows. The command should be invoked from the GDB command line using \ | |
3402 | the '-ex' command-line option. The ID of the event that blocks the \ | |
3403 | crashed process will be supplied by the Windows JIT debugging mechanism.")); | |
3404 | ||
10325bc5 | 3405 | #ifdef __CYGWIN__ |
5bf193a2 AC |
3406 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
3407 | Set use of shell to start subprocess."), _("\ | |
3408 | Show use of shell to start subprocess."), NULL, | |
3409 | NULL, | |
3410 | NULL, /* FIXME: i18n: */ | |
3411 | &setlist, &showlist); | |
3412 | ||
581e13c1 MS |
3413 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
3414 | &cygwin_exceptions, _("\ | |
09280ddf CF |
3415 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
3416 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
3417 | NULL, | |
3418 | NULL, /* FIXME: i18n: */ | |
3419 | &setlist, &showlist); | |
10325bc5 | 3420 | #endif |
09280ddf | 3421 | |
5bf193a2 AC |
3422 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
3423 | Set creation of new console when creating child process."), _("\ | |
3424 | Show creation of new console when creating child process."), NULL, | |
3425 | NULL, | |
3426 | NULL, /* FIXME: i18n: */ | |
3427 | &setlist, &showlist); | |
3428 | ||
3429 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
3430 | Set creation of new group when creating child process."), _("\ | |
3431 | Show creation of new group when creating child process."), NULL, | |
3432 | NULL, | |
3433 | NULL, /* FIXME: i18n: */ | |
3434 | &setlist, &showlist); | |
3435 | ||
3436 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
3437 | Set whether to display execution in child process."), _("\ | |
3438 | Show whether to display execution in child process."), NULL, | |
3439 | NULL, | |
3440 | NULL, /* FIXME: i18n: */ | |
3441 | &setlist, &showlist); | |
3442 | ||
3443 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
3444 | Set whether to display kernel events in child process."), _("\ | |
3445 | Show whether to display kernel events in child process."), NULL, | |
3446 | NULL, | |
3447 | NULL, /* FIXME: i18n: */ | |
3448 | &setlist, &showlist); | |
3449 | ||
3450 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
3451 | Set whether to display memory accesses in child process."), _("\ | |
3452 | Show whether to display memory accesses in child process."), NULL, | |
3453 | NULL, | |
3454 | NULL, /* FIXME: i18n: */ | |
3455 | &setlist, &showlist); | |
3456 | ||
3457 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
3458 | &debug_exceptions, _("\ | |
3459 | Set whether to display kernel exceptions in child process."), _("\ | |
3460 | Show whether to display kernel exceptions in child process."), NULL, | |
3461 | NULL, | |
3462 | NULL, /* FIXME: i18n: */ | |
3463 | &setlist, &showlist); | |
1ef980b9 | 3464 | |
711e434b | 3465 | init_w32_command_list (); |
c1748f97 PM |
3466 | |
3467 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 3468 | _("Display selectors infos."), |
c1748f97 | 3469 | &info_w32_cmdlist); |
24e60978 | 3470 | } |
3cee93ac | 3471 | |
fa4ba8da PM |
3472 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
3473 | ||
3474 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
3475 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 3476 | actually set up when windows_continue is called. */ |
9bb9e8ad | 3477 | static void |
fa4ba8da PM |
3478 | cygwin_set_dr (int i, CORE_ADDR addr) |
3479 | { | |
3480 | if (i < 0 || i > 3) | |
3481 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3482 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 3483 | dr[i] = addr; |
fa4ba8da PM |
3484 | debug_registers_changed = 1; |
3485 | debug_registers_used = 1; | |
3486 | } | |
3487 | ||
3488 | /* Pass the value VAL to the inferior in the DR7 debug control | |
3489 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 3490 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
3491 | static void |
3492 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 3493 | { |
9bb9e8ad | 3494 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
3495 | debug_registers_changed = 1; |
3496 | debug_registers_used = 1; | |
3497 | } | |
3498 | ||
7b50312a PA |
3499 | /* Get the value of debug register I from the inferior. */ |
3500 | ||
3501 | static CORE_ADDR | |
3502 | cygwin_get_dr (int i) | |
3503 | { | |
3504 | return dr[i]; | |
3505 | } | |
3506 | ||
fa4ba8da PM |
3507 | /* Get the value of the DR6 debug status register from the inferior. |
3508 | Here we just return the value stored in dr[6] | |
3509 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 3510 | static unsigned long |
fa4ba8da PM |
3511 | cygwin_get_dr6 (void) |
3512 | { | |
9bb9e8ad | 3513 | return (unsigned long) dr[6]; |
fa4ba8da PM |
3514 | } |
3515 | ||
7b50312a PA |
3516 | /* Get the value of the DR7 debug status register from the inferior. |
3517 | Here we just return the value stored in dr[7] by the last call to | |
3518 | thread_rec for current_event.dwThreadId id. */ | |
3519 | ||
3520 | static unsigned long | |
3521 | cygwin_get_dr7 (void) | |
3522 | { | |
3523 | return (unsigned long) dr[7]; | |
3524 | } | |
3525 | ||
2dc38344 | 3526 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 3527 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 3528 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
f6ac5f3d | 3529 | |
57810aa7 | 3530 | bool |
f6ac5f3d | 3531 | windows_nat_target::thread_alive (ptid_t ptid) |
3cee93ac | 3532 | { |
2dc38344 PA |
3533 | int tid; |
3534 | ||
7c7411bc TT |
3535 | gdb_assert (ptid.lwp () != 0); |
3536 | tid = ptid.lwp (); | |
39f77062 | 3537 | |
57810aa7 | 3538 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) != WAIT_OBJECT_0; |
3cee93ac CF |
3539 | } |
3540 | ||
6c265988 | 3541 | void _initialize_check_for_gdb_ini (); |
2a3d5645 | 3542 | void |
6c265988 | 3543 | _initialize_check_for_gdb_ini () |
2a3d5645 CF |
3544 | { |
3545 | char *homedir; | |
3546 | if (inhibit_gdbinit) | |
3547 | return; | |
3548 | ||
3549 | homedir = getenv ("HOME"); | |
3550 | if (homedir) | |
3551 | { | |
3552 | char *p; | |
3553 | char *oldini = (char *) alloca (strlen (homedir) + | |
1270fac6 | 3554 | sizeof ("gdb.ini") + 1); |
2a3d5645 CF |
3555 | strcpy (oldini, homedir); |
3556 | p = strchr (oldini, '\0'); | |
0ba1096a | 3557 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
3558 | *p++ = '/'; |
3559 | strcpy (p, "gdb.ini"); | |
3560 | if (access (oldini, 0) == 0) | |
3561 | { | |
3562 | int len = strlen (oldini); | |
1270fac6 | 3563 | char *newini = (char *) alloca (len + 2); |
08850b56 | 3564 | |
1270fac6 | 3565 | xsnprintf (newini, len + 2, "%.*s.gdbinit", |
08850b56 | 3566 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 3567 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
3568 | } |
3569 | } | |
3570 | } | |
33605d39 | 3571 | |
2b008701 | 3572 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 3573 | these functions could not be found. */ |
2b008701 CF |
3574 | static BOOL WINAPI |
3575 | bad_DebugActiveProcessStop (DWORD w) | |
3576 | { | |
3577 | return FALSE; | |
3578 | } | |
3579 | static BOOL WINAPI | |
3580 | bad_DebugBreakProcess (HANDLE w) | |
3581 | { | |
3582 | return FALSE; | |
3583 | } | |
3584 | static BOOL WINAPI | |
3585 | bad_DebugSetProcessKillOnExit (BOOL w) | |
3586 | { | |
3587 | return FALSE; | |
3588 | } | |
3589 | static BOOL WINAPI | |
3590 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
3591 | { | |
3592 | return FALSE; | |
3593 | } | |
b3c613f2 CF |
3594 | |
3595 | #ifdef __USEWIDE | |
2b008701 | 3596 | static DWORD WINAPI |
b3c613f2 | 3597 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
3598 | { |
3599 | return 0; | |
3600 | } | |
d0d0ab16 CV |
3601 | #else |
3602 | static DWORD WINAPI | |
b3c613f2 | 3603 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
3604 | { |
3605 | return 0; | |
3606 | } | |
3607 | #endif | |
b3c613f2 | 3608 | |
2b008701 CF |
3609 | static BOOL WINAPI |
3610 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
3611 | { | |
3612 | return FALSE; | |
3613 | } | |
3614 | ||
418c6cb3 CF |
3615 | static BOOL WINAPI |
3616 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
3617 | { | |
3618 | return FALSE; | |
3619 | } | |
3620 | ||
cd44747c PM |
3621 | static BOOL WINAPI |
3622 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
3623 | { | |
3624 | f->nFont = 0; | |
3625 | return 1; | |
3626 | } | |
3627 | static COORD WINAPI | |
3628 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
3629 | { | |
3630 | COORD size; | |
3631 | size.X = 8; | |
3632 | size.Y = 12; | |
3633 | return size; | |
3634 | } | |
3635 | ||
2b008701 | 3636 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 3637 | of Windows. */ |
d603d4b3 | 3638 | |
6c265988 | 3639 | void _initialize_loadable (); |
33605d39 | 3640 | void |
6c265988 | 3641 | _initialize_loadable () |
33605d39 | 3642 | { |
2b008701 CF |
3643 | HMODULE hm = NULL; |
3644 | ||
43499ea3 PA |
3645 | #define GPA(m, func) \ |
3646 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
3647 | ||
2b008701 CF |
3648 | hm = LoadLibrary ("kernel32.dll"); |
3649 | if (hm) | |
33605d39 | 3650 | { |
43499ea3 PA |
3651 | GPA (hm, DebugActiveProcessStop); |
3652 | GPA (hm, DebugBreakProcess); | |
3653 | GPA (hm, DebugSetProcessKillOnExit); | |
3654 | GPA (hm, GetConsoleFontSize); | |
3655 | GPA (hm, DebugActiveProcessStop); | |
3656 | GPA (hm, GetCurrentConsoleFont); | |
46f9f931 HD |
3657 | #ifdef __x86_64__ |
3658 | GPA (hm, Wow64SuspendThread); | |
3659 | GPA (hm, Wow64GetThreadContext); | |
3660 | GPA (hm, Wow64SetThreadContext); | |
3661 | GPA (hm, Wow64GetThreadSelectorEntry); | |
3662 | #endif | |
2b008701 | 3663 | } |
33605d39 | 3664 | |
2b008701 | 3665 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 3666 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
3667 | if (!DebugBreakProcess) |
3668 | DebugBreakProcess = bad_DebugBreakProcess; | |
3669 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 3670 | { |
b3c613f2 CF |
3671 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
3672 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 3673 | } |
cd44747c PM |
3674 | if (!GetConsoleFontSize) |
3675 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
3676 | if (!GetCurrentConsoleFont) | |
3677 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 3678 | |
2b008701 | 3679 | /* Load optional functions used for retrieving filename information |
581e13c1 | 3680 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
3681 | hm = LoadLibrary ("psapi.dll"); |
3682 | if (hm) | |
3683 | { | |
43499ea3 | 3684 | GPA (hm, EnumProcessModules); |
46f9f931 HD |
3685 | #ifdef __x86_64__ |
3686 | GPA (hm, EnumProcessModulesEx); | |
3687 | #endif | |
43499ea3 | 3688 | GPA (hm, GetModuleInformation); |
aec47d1d JB |
3689 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
3690 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
3691 | } |
3692 | ||
b3c613f2 | 3693 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
3694 | { |
3695 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 3696 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
3697 | EnumProcessModules = bad_EnumProcessModules; |
3698 | GetModuleInformation = bad_GetModuleInformation; | |
3699 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
3700 | /* This will probably fail on Windows 9x/Me. Let the user know |
3701 | that we're missing some functionality. */ | |
3702 | warning(_("\ | |
3703 | cannot automatically find executable file or library to read symbols.\n\ | |
3704 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
3705 | } |
3706 | ||
3707 | hm = LoadLibrary ("advapi32.dll"); | |
3708 | if (hm) | |
3709 | { | |
43499ea3 PA |
3710 | GPA (hm, OpenProcessToken); |
3711 | GPA (hm, LookupPrivilegeValueA); | |
3712 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 3713 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
3714 | else is needed. */ |
3715 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
3716 | || !AdjustTokenPrivileges) | |
b3c613f2 | 3717 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 3718 | } |
43499ea3 PA |
3719 | |
3720 | #undef GPA | |
33605d39 | 3721 | } |