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 | |
4834dad0 TT |
75 | using namespace windows_nat; |
76 | ||
418c6cb3 | 77 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
78 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
79 | #define DebugBreakProcess dyn_DebugBreakProcess | |
80 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
81 | #define EnumProcessModules dyn_EnumProcessModules | |
46f9f931 | 82 | #define EnumProcessModulesEx dyn_EnumProcessModulesEx |
2b008701 | 83 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
84 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
85 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
86 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
87 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
46f9f931 HD |
88 | #define Wow64SuspendThread dyn_Wow64SuspendThread |
89 | #define Wow64GetThreadContext dyn_Wow64GetThreadContext | |
90 | #define Wow64SetThreadContext dyn_Wow64SetThreadContext | |
91 | #define Wow64GetThreadSelectorEntry dyn_Wow64GetThreadSelectorEntry | |
2b008701 | 92 | |
43499ea3 PA |
93 | typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL, |
94 | PTOKEN_PRIVILEGES, | |
95 | DWORD, PTOKEN_PRIVILEGES, | |
96 | PDWORD); | |
97 | static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges; | |
98 | ||
99 | typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD); | |
100 | static DebugActiveProcessStop_ftype *DebugActiveProcessStop; | |
101 | ||
102 | typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE); | |
103 | static DebugBreakProcess_ftype *DebugBreakProcess; | |
104 | ||
105 | typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL); | |
106 | static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit; | |
107 | ||
108 | typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD, | |
109 | LPDWORD); | |
110 | static EnumProcessModules_ftype *EnumProcessModules; | |
111 | ||
46f9f931 HD |
112 | #ifdef __x86_64__ |
113 | typedef BOOL WINAPI (EnumProcessModulesEx_ftype) (HANDLE, HMODULE *, DWORD, | |
114 | LPDWORD, DWORD); | |
115 | static EnumProcessModulesEx_ftype *EnumProcessModulesEx; | |
116 | #endif | |
117 | ||
43499ea3 PA |
118 | typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE, |
119 | LPMODULEINFO, DWORD); | |
120 | static GetModuleInformation_ftype *GetModuleInformation; | |
121 | ||
122 | typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID); | |
123 | static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA; | |
124 | ||
125 | typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE); | |
126 | static OpenProcessToken_ftype *OpenProcessToken; | |
127 | ||
128 | typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL, | |
129 | CONSOLE_FONT_INFO *); | |
130 | static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont; | |
131 | ||
132 | typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD); | |
133 | static GetConsoleFontSize_ftype *GetConsoleFontSize; | |
2b008701 | 134 | |
46f9f931 HD |
135 | #ifdef __x86_64__ |
136 | typedef DWORD WINAPI (Wow64SuspendThread_ftype) (HANDLE); | |
137 | static Wow64SuspendThread_ftype *Wow64SuspendThread; | |
138 | ||
139 | typedef BOOL WINAPI (Wow64GetThreadContext_ftype) (HANDLE, PWOW64_CONTEXT); | |
140 | static Wow64GetThreadContext_ftype *Wow64GetThreadContext; | |
141 | ||
142 | typedef BOOL WINAPI (Wow64SetThreadContext_ftype) (HANDLE, | |
143 | const WOW64_CONTEXT *); | |
144 | static Wow64SetThreadContext_ftype *Wow64SetThreadContext; | |
145 | ||
146 | typedef BOOL WINAPI (Wow64GetThreadSelectorEntry_ftype) (HANDLE, DWORD, | |
147 | PLDT_ENTRY); | |
148 | static Wow64GetThreadSelectorEntry_ftype *Wow64GetThreadSelectorEntry; | |
149 | #endif | |
150 | ||
b3c613f2 CF |
151 | #undef STARTUPINFO |
152 | #undef CreateProcess | |
153 | #undef GetModuleFileNameEx | |
154 | ||
155 | #ifndef __CYGWIN__ | |
156 | # define __PMAX (MAX_PATH + 1) | |
43499ea3 PA |
157 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD); |
158 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
159 | # define STARTUPINFO STARTUPINFOA |
160 | # define CreateProcess CreateProcessA | |
161 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
162 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
163 | #else | |
164 | # define __PMAX PATH_MAX | |
581e13c1 | 165 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
166 | static CORE_ADDR cygwin_load_start; |
167 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
168 | # define __USEWIDE |
169 | typedef wchar_t cygwin_buf_t; | |
43499ea3 PA |
170 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, |
171 | LPWSTR, DWORD); | |
172 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
173 | # define STARTUPINFO STARTUPINFOW |
174 | # define CreateProcess CreateProcessW | |
175 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
176 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 177 | #endif |
a244bdca | 178 | |
581e13c1 MS |
179 | static int have_saved_context; /* True if we've saved context from a |
180 | cygwin signal. */ | |
15766370 | 181 | #ifdef __CYGWIN__ |
85102364 | 182 | static CONTEXT saved_context; /* Contains the saved context from a |
581e13c1 | 183 | cygwin signal. */ |
15766370 | 184 | #endif |
a244bdca | 185 | |
0714f9bf SS |
186 | /* If we're not using the old Cygwin header file set, define the |
187 | following which never should have been in the generic Win32 API | |
581e13c1 | 188 | headers in the first place since they were our own invention... */ |
0714f9bf | 189 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 190 | enum |
8e860359 CF |
191 | { |
192 | FLAG_TRACE_BIT = 0x100, | |
8e860359 | 193 | }; |
0714f9bf SS |
194 | #endif |
195 | ||
5851ab76 JB |
196 | #ifndef CONTEXT_EXTENDED_REGISTERS |
197 | /* This macro is only defined on ia32. It only makes sense on this target, | |
198 | so define it as zero if not already defined. */ | |
199 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
200 | #endif | |
201 | ||
f0666312 JT |
202 | #define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \ |
203 | | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \ | |
204 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 205 | |
41b4aadc | 206 | static uintptr_t dr[8]; |
87a45c96 CF |
207 | static int debug_registers_changed; |
208 | static int debug_registers_used; | |
16d905e2 CF |
209 | |
210 | static int windows_initialization_done; | |
6537bb24 | 211 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 212 | |
3cee93ac | 213 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 214 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
215 | #ifndef _CYGWIN_SIGNAL_STRING |
216 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
217 | #endif | |
3cee93ac | 218 | |
29fe111d | 219 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 220 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
221 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
222 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
223 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 224 | |
9bb9e8ad PM |
225 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
226 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 227 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 228 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 229 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 230 | |
93366324 | 231 | static std::vector<windows_thread_info *> thread_list; |
24e60978 | 232 | |
581e13c1 | 233 | /* Counts of things. */ |
dfe7f3ac | 234 | static int saw_create; |
bf25528d | 235 | static int open_process_used = 0; |
46f9f931 HD |
236 | #ifdef __x86_64__ |
237 | static bool wow64_process = false; | |
238 | static bool ignore_first_breakpoint = false; | |
239 | #endif | |
24e60978 | 240 | |
581e13c1 | 241 | /* User options. */ |
491144b5 | 242 | static bool new_console = false; |
10325bc5 | 243 | #ifdef __CYGWIN__ |
491144b5 | 244 | static bool cygwin_exceptions = false; |
10325bc5 | 245 | #endif |
491144b5 CB |
246 | static bool new_group = true; |
247 | static bool debug_exec = false; /* show execution */ | |
248 | static bool debug_events = false; /* show events from kernel */ | |
249 | static bool debug_memory = false; /* show target memory accesses */ | |
250 | static bool debug_exceptions = false; /* show target exceptions */ | |
251 | static bool useshell = false; /* use shell for subprocesses */ | |
dfe7f3ac | 252 | |
7e63b4e4 | 253 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 254 | in the windows exception context vector. |
24e60978 | 255 | |
3cee93ac | 256 | It also contains the bit mask needed to load the register in question. |
24e60978 | 257 | |
7e63b4e4 JB |
258 | The contents of this table can only be computed by the units |
259 | that provide CPU-specific support for Windows native debugging. | |
260 | These units should set the table by calling | |
dc05df57 | 261 | windows_set_context_register_offsets. |
7e63b4e4 | 262 | |
24e60978 SC |
263 | One day we could read a reg, we could inspect the context we |
264 | already have loaded, if it doesn't have the bit set that we need, | |
265 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 266 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
267 | write a register, first we have to ensure that the context contains |
268 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 269 | out bit. */ |
24e60978 | 270 | |
7e63b4e4 | 271 | static const int *mappings; |
d3a09475 | 272 | |
d40dc7a8 JB |
273 | /* The function to use in order to determine whether a register is |
274 | a segment register or not. */ | |
275 | static segment_register_p_ftype *segment_register_p; | |
276 | ||
73c13fe6 TT |
277 | /* See windows_nat_target::resume to understand why this is commented |
278 | out. */ | |
279 | #if 0 | |
24e60978 | 280 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 281 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
282 | |
283 | struct xlate_exception | |
284 | { | |
73c13fe6 | 285 | DWORD them; |
2ea28649 | 286 | enum gdb_signal us; |
24e60978 SC |
287 | }; |
288 | ||
73c13fe6 | 289 | static const struct xlate_exception xlate[] = |
24e60978 | 290 | { |
a493e3e2 PA |
291 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
292 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
293 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
294 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
295 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
73c13fe6 TT |
296 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE} |
297 | }; | |
24e60978 | 298 | |
73c13fe6 | 299 | #endif /* 0 */ |
f6ac5f3d PA |
300 | |
301 | struct windows_nat_target final : public x86_nat_target<inf_child_target> | |
302 | { | |
303 | void close () override; | |
304 | ||
305 | void attach (const char *, int) override; | |
306 | ||
307 | bool attach_no_wait () override | |
308 | { return true; } | |
309 | ||
310 | void detach (inferior *, int) override; | |
311 | ||
312 | void resume (ptid_t, int , enum gdb_signal) override; | |
313 | ||
314 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
315 | ||
316 | void fetch_registers (struct regcache *, int) override; | |
317 | void store_registers (struct regcache *, int) override; | |
318 | ||
0a4afda3 TT |
319 | bool stopped_by_sw_breakpoint () override |
320 | { | |
3c76026d | 321 | return current_windows_thread->stopped_at_software_breakpoint; |
0a4afda3 TT |
322 | } |
323 | ||
324 | bool supports_stopped_by_sw_breakpoint () override | |
325 | { | |
326 | return true; | |
327 | } | |
328 | ||
f6ac5f3d PA |
329 | enum target_xfer_status xfer_partial (enum target_object object, |
330 | const char *annex, | |
331 | gdb_byte *readbuf, | |
332 | const gdb_byte *writebuf, | |
333 | ULONGEST offset, ULONGEST len, | |
334 | ULONGEST *xfered_len) override; | |
335 | ||
336 | void files_info () override; | |
337 | ||
338 | void kill () override; | |
339 | ||
340 | void create_inferior (const char *, const std::string &, | |
341 | char **, int) override; | |
342 | ||
343 | void mourn_inferior () override; | |
344 | ||
57810aa7 | 345 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d | 346 | |
a068643d | 347 | std::string pid_to_str (ptid_t) override; |
f6ac5f3d PA |
348 | |
349 | void interrupt () override; | |
350 | ||
351 | char *pid_to_exec_file (int pid) override; | |
352 | ||
353 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
354 | ||
57810aa7 | 355 | bool get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; |
f6ac5f3d PA |
356 | |
357 | const char *thread_name (struct thread_info *) override; | |
5b6d1e4f PA |
358 | |
359 | int get_windows_debug_event (int pid, struct target_waitstatus *ourstatus); | |
f6ac5f3d PA |
360 | }; |
361 | ||
362 | static windows_nat_target the_windows_nat_target; | |
363 | ||
7e63b4e4 JB |
364 | /* Set the MAPPINGS static global to OFFSETS. |
365 | See the description of MAPPINGS for more details. */ | |
366 | ||
46f9f931 | 367 | static void |
dc05df57 | 368 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
369 | { |
370 | mappings = offsets; | |
371 | } | |
372 | ||
46f9f931 HD |
373 | /* Set the function that should be used by this module to determine |
374 | whether a given register is a segment register or not. */ | |
d40dc7a8 | 375 | |
46f9f931 | 376 | static void |
d40dc7a8 JB |
377 | windows_set_segment_register_p (segment_register_p_ftype *fun) |
378 | { | |
379 | segment_register_p = fun; | |
380 | } | |
381 | ||
fa4ba8da PM |
382 | static void |
383 | check (BOOL ok, const char *file, int line) | |
384 | { | |
385 | if (!ok) | |
d50a0ce2 CV |
386 | printf_filtered ("error return %s:%d was %u\n", file, line, |
387 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
388 | } |
389 | ||
28688adf | 390 | /* See nat/windows-nat.h. */ |
8e61ebec | 391 | |
28688adf TT |
392 | windows_thread_info * |
393 | windows_nat::thread_rec (ptid_t ptid, thread_disposition_type disposition) | |
24e60978 | 394 | { |
93366324 | 395 | for (windows_thread_info *th : thread_list) |
28688adf | 396 | if (th->tid == ptid.lwp ()) |
3cee93ac | 397 | { |
8e61ebec | 398 | if (!th->suspended) |
3cee93ac | 399 | { |
8e61ebec TT |
400 | switch (disposition) |
401 | { | |
402 | case DONT_INVALIDATE_CONTEXT: | |
403 | /* Nothing. */ | |
404 | break; | |
405 | case INVALIDATE_CONTEXT: | |
28688adf | 406 | if (ptid.lwp () != current_event.dwThreadId) |
8e61ebec TT |
407 | th->suspend (); |
408 | th->reload_context = true; | |
409 | break; | |
410 | case DONT_SUSPEND: | |
411 | th->reload_context = true; | |
412 | th->suspended = -1; | |
413 | break; | |
414 | } | |
3cee93ac CF |
415 | } |
416 | return th; | |
417 | } | |
418 | ||
419 | return NULL; | |
420 | } | |
421 | ||
c559d709 JB |
422 | /* Add a thread to the thread list. |
423 | ||
424 | PTID is the ptid of the thread to be added. | |
425 | H is its Windows handle. | |
426 | TLB is its thread local base. | |
427 | MAIN_THREAD_P should be true if the thread to be added is | |
428 | the main thread, false otherwise. */ | |
429 | ||
876d1cd7 | 430 | static windows_thread_info * |
c559d709 | 431 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb, bool main_thread_p) |
3cee93ac | 432 | { |
876d1cd7 | 433 | windows_thread_info *th; |
2dc38344 | 434 | |
7c7411bc | 435 | gdb_assert (ptid.lwp () != 0); |
2dc38344 | 436 | |
28688adf | 437 | if ((th = thread_rec (ptid, DONT_INVALIDATE_CONTEXT))) |
3cee93ac CF |
438 | return th; |
439 | ||
e9534bd2 | 440 | CORE_ADDR base = (CORE_ADDR) (uintptr_t) tlb; |
46f9f931 HD |
441 | #ifdef __x86_64__ |
442 | /* For WOW64 processes, this is actually the pointer to the 64bit TIB, | |
443 | and the 32bit TIB is exactly 2 pages after it. */ | |
444 | if (wow64_process) | |
e9534bd2 | 445 | base += 0x2000; |
46f9f931 | 446 | #endif |
28688adf | 447 | th = new windows_thread_info (ptid.lwp (), h, base); |
93366324 | 448 | thread_list.push_back (th); |
c559d709 JB |
449 | |
450 | /* Add this new thread to the list of threads. | |
451 | ||
452 | To be consistent with what's done on other platforms, we add | |
453 | the main thread silently (in reality, this thread is really | |
454 | more of a process to the user than a thread). */ | |
455 | if (main_thread_p) | |
5b6d1e4f | 456 | add_thread_silent (&the_windows_nat_target, ptid); |
c559d709 | 457 | else |
5b6d1e4f | 458 | add_thread (&the_windows_nat_target, ptid); |
c559d709 | 459 | |
2dc38344 | 460 | /* Set the debug registers for the new thread if they are used. */ |
fa4ba8da PM |
461 | if (debug_registers_used) |
462 | { | |
46f9f931 HD |
463 | #ifdef __x86_64__ |
464 | if (wow64_process) | |
465 | { | |
466 | /* Only change the value of the debug registers. */ | |
467 | th->wow64_context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
468 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
469 | th->wow64_context.Dr0 = dr[0]; | |
470 | th->wow64_context.Dr1 = dr[1]; | |
471 | th->wow64_context.Dr2 = dr[2]; | |
472 | th->wow64_context.Dr3 = dr[3]; | |
473 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
474 | th->wow64_context.Dr7 = dr[7]; | |
475 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
476 | th->wow64_context.ContextFlags = 0; | |
477 | } | |
478 | else | |
479 | #endif | |
480 | { | |
481 | /* Only change the value of the debug registers. */ | |
482 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
483 | CHECK (GetThreadContext (th->h, &th->context)); | |
484 | th->context.Dr0 = dr[0]; | |
485 | th->context.Dr1 = dr[1]; | |
486 | th->context.Dr2 = dr[2]; | |
487 | th->context.Dr3 = dr[3]; | |
488 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
489 | th->context.Dr7 = dr[7]; | |
490 | CHECK (SetThreadContext (th->h, &th->context)); | |
491 | th->context.ContextFlags = 0; | |
492 | } | |
fa4ba8da | 493 | } |
3cee93ac | 494 | return th; |
24e60978 SC |
495 | } |
496 | ||
26c4b26f | 497 | /* Clear out any old thread list and reinitialize it to a |
581e13c1 | 498 | pristine state. */ |
24e60978 | 499 | static void |
dc05df57 | 500 | windows_init_thread_list (void) |
24e60978 | 501 | { |
dc05df57 | 502 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac | 503 | init_thread_list (); |
93366324 TT |
504 | |
505 | for (windows_thread_info *here : thread_list) | |
e9534bd2 | 506 | delete here; |
93366324 TT |
507 | |
508 | thread_list.clear (); | |
3cee93ac CF |
509 | } |
510 | ||
c559d709 JB |
511 | /* Delete a thread from the list of threads. |
512 | ||
513 | PTID is the ptid of the thread to be deleted. | |
514 | EXIT_CODE is the thread's exit code. | |
515 | MAIN_THREAD_P should be true if the thread to be deleted is | |
516 | the main thread, false otherwise. */ | |
517 | ||
3cee93ac | 518 | static void |
c559d709 | 519 | windows_delete_thread (ptid_t ptid, DWORD exit_code, bool main_thread_p) |
3cee93ac | 520 | { |
2dc38344 PA |
521 | DWORD id; |
522 | ||
7c7411bc | 523 | gdb_assert (ptid.lwp () != 0); |
2dc38344 | 524 | |
7c7411bc | 525 | id = ptid.lwp (); |
3cee93ac | 526 | |
c559d709 JB |
527 | /* Emit a notification about the thread being deleted. |
528 | ||
529 | Note that no notification was printed when the main thread | |
530 | was created, and thus, unless in verbose mode, we should be | |
85102364 | 531 | symmetrical, and avoid that notification for the main thread |
c559d709 JB |
532 | here as well. */ |
533 | ||
3cee93ac | 534 | if (info_verbose) |
a068643d | 535 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid).c_str ()); |
c559d709 | 536 | else if (print_thread_events && !main_thread_p) |
e0ea48a0 | 537 | printf_unfiltered (_("[%s exited with code %u]\n"), |
a068643d TT |
538 | target_pid_to_str (ptid).c_str (), |
539 | (unsigned) exit_code); | |
c559d709 | 540 | |
5b6d1e4f | 541 | delete_thread (find_thread_ptid (&the_windows_nat_target, ptid)); |
3cee93ac | 542 | |
93366324 TT |
543 | auto iter = std::find_if (thread_list.begin (), thread_list.end (), |
544 | [=] (windows_thread_info *th) | |
545 | { | |
55a1e039 | 546 | return th->tid == id; |
93366324 | 547 | }); |
3cee93ac | 548 | |
93366324 | 549 | if (iter != thread_list.end ()) |
24e60978 | 550 | { |
e9534bd2 | 551 | delete *iter; |
93366324 | 552 | thread_list.erase (iter); |
24e60978 SC |
553 | } |
554 | } | |
555 | ||
9a325b7b JB |
556 | /* Fetches register number R from the given windows_thread_info, |
557 | and supplies its value to the given regcache. | |
558 | ||
559 | This function assumes that R is non-negative. A failed assertion | |
560 | is raised if that is not true. | |
561 | ||
562 | This function assumes that TH->RELOAD_CONTEXT is not set, meaning | |
563 | that the windows_thread_info has an up-to-date context. A failed | |
564 | assertion is raised if that assumption is violated. */ | |
565 | ||
3cee93ac | 566 | static void |
9a325b7b JB |
567 | windows_fetch_one_register (struct regcache *regcache, |
568 | windows_thread_info *th, int r) | |
24e60978 | 569 | { |
9a325b7b JB |
570 | gdb_assert (r >= 0); |
571 | gdb_assert (!th->reload_context); | |
572 | ||
46f9f931 HD |
573 | char *context_ptr = (char *) &th->context; |
574 | #ifdef __x86_64__ | |
575 | if (wow64_process) | |
576 | context_ptr = (char *) &th->wow64_context; | |
577 | #endif | |
578 | ||
579 | char *context_offset = context_ptr + mappings[r]; | |
ac7936df | 580 | struct gdbarch *gdbarch = regcache->arch (); |
20a6ec49 | 581 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
9a325b7b | 582 | |
0a4afda3 TT |
583 | gdb_assert (!gdbarch_read_pc_p (gdbarch)); |
584 | gdb_assert (gdbarch_pc_regnum (gdbarch) >= 0); | |
585 | gdb_assert (!gdbarch_write_pc_p (gdbarch)); | |
586 | ||
9a325b7b JB |
587 | if (r == I387_FISEG_REGNUM (tdep)) |
588 | { | |
589 | long l = *((long *) context_offset) & 0xffff; | |
590 | regcache->raw_supply (r, (char *) &l); | |
591 | } | |
592 | else if (r == I387_FOP_REGNUM (tdep)) | |
593 | { | |
594 | long l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); | |
595 | regcache->raw_supply (r, (char *) &l); | |
596 | } | |
597 | else if (segment_register_p (r)) | |
598 | { | |
599 | /* GDB treats segment registers as 32bit registers, but they are | |
600 | in fact only 16 bits long. Make sure we do not read extra | |
601 | bits from our source buffer. */ | |
602 | long l = *((long *) context_offset) & 0xffff; | |
603 | regcache->raw_supply (r, (char *) &l); | |
604 | } | |
605 | else | |
0a4afda3 TT |
606 | { |
607 | if (th->stopped_at_software_breakpoint | |
608 | && r == gdbarch_pc_regnum (gdbarch)) | |
609 | { | |
610 | int size = register_size (gdbarch, r); | |
611 | if (size == 4) | |
612 | { | |
613 | uint32_t value; | |
614 | memcpy (&value, context_offset, size); | |
615 | value -= gdbarch_decr_pc_after_break (gdbarch); | |
616 | memcpy (context_offset, &value, size); | |
617 | } | |
618 | else | |
619 | { | |
620 | gdb_assert (size == 8); | |
621 | uint64_t value; | |
622 | memcpy (&value, context_offset, size); | |
623 | value -= gdbarch_decr_pc_after_break (gdbarch); | |
624 | memcpy (context_offset, &value, size); | |
625 | } | |
626 | } | |
627 | regcache->raw_supply (r, context_offset); | |
628 | } | |
9a325b7b JB |
629 | } |
630 | ||
631 | void | |
632 | windows_nat_target::fetch_registers (struct regcache *regcache, int r) | |
633 | { | |
28688adf | 634 | windows_thread_info *th = thread_rec (regcache->ptid (), INVALIDATE_CONTEXT); |
9a325b7b JB |
635 | |
636 | /* Check if TH exists. Windows sometimes uses a non-existent | |
637 | thread id in its events. */ | |
638 | if (th == NULL) | |
639 | return; | |
6c7de422 | 640 | |
3de88e9a | 641 | if (th->reload_context) |
3ade5333 | 642 | { |
f20c58f5 | 643 | #ifdef __CYGWIN__ |
a244bdca CF |
644 | if (have_saved_context) |
645 | { | |
581e13c1 MS |
646 | /* Lie about where the program actually is stopped since |
647 | cygwin has informed us that we should consider the signal | |
648 | to have occurred at another location which is stored in | |
649 | "saved_context. */ | |
3de88e9a | 650 | memcpy (&th->context, &saved_context, |
581e13c1 | 651 | __COPY_CONTEXT_SIZE); |
a244bdca CF |
652 | have_saved_context = 0; |
653 | } | |
654 | else | |
46f9f931 HD |
655 | #endif |
656 | #ifdef __x86_64__ | |
657 | if (wow64_process) | |
658 | { | |
659 | th->wow64_context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
660 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
661 | /* Copy dr values from that thread. | |
662 | But only if there were not modified since last stop. | |
663 | PR gdb/2388 */ | |
664 | if (!debug_registers_changed) | |
665 | { | |
666 | dr[0] = th->wow64_context.Dr0; | |
667 | dr[1] = th->wow64_context.Dr1; | |
668 | dr[2] = th->wow64_context.Dr2; | |
669 | dr[3] = th->wow64_context.Dr3; | |
670 | dr[6] = th->wow64_context.Dr6; | |
671 | dr[7] = th->wow64_context.Dr7; | |
672 | } | |
673 | } | |
674 | else | |
cb832706 | 675 | #endif |
a244bdca | 676 | { |
a244bdca | 677 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 678 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 679 | /* Copy dr values from that thread. |
581e13c1 MS |
680 | But only if there were not modified since last stop. |
681 | PR gdb/2388 */ | |
88616312 PM |
682 | if (!debug_registers_changed) |
683 | { | |
684 | dr[0] = th->context.Dr0; | |
685 | dr[1] = th->context.Dr1; | |
686 | dr[2] = th->context.Dr2; | |
687 | dr[3] = th->context.Dr3; | |
688 | dr[6] = th->context.Dr6; | |
689 | dr[7] = th->context.Dr7; | |
690 | } | |
a244bdca | 691 | } |
62fe396b | 692 | th->reload_context = false; |
3ade5333 CF |
693 | } |
694 | ||
9a325b7b JB |
695 | if (r < 0) |
696 | for (r = 0; r < gdbarch_num_regs (regcache->arch()); r++) | |
697 | windows_fetch_one_register (regcache, th, r); | |
3cee93ac | 698 | else |
9a325b7b | 699 | windows_fetch_one_register (regcache, th, r); |
3cee93ac CF |
700 | } |
701 | ||
9a325b7b JB |
702 | /* Collect the register number R from the given regcache, and store |
703 | its value into the corresponding area of the given thread's context. | |
3de88e9a | 704 | |
9a325b7b JB |
705 | This function assumes that R is non-negative. A failed assertion |
706 | assertion is raised if that is not true. */ | |
3cee93ac CF |
707 | |
708 | static void | |
9a325b7b JB |
709 | windows_store_one_register (const struct regcache *regcache, |
710 | windows_thread_info *th, int r) | |
3cee93ac | 711 | { |
9a325b7b JB |
712 | gdb_assert (r >= 0); |
713 | ||
46f9f931 HD |
714 | char *context_ptr = (char *) &th->context; |
715 | #ifdef __x86_64__ | |
716 | if (wow64_process) | |
717 | context_ptr = (char *) &th->wow64_context; | |
718 | #endif | |
719 | ||
720 | regcache->raw_collect (r, context_ptr + mappings[r]); | |
24e60978 SC |
721 | } |
722 | ||
3de88e9a SM |
723 | /* Store a new register value into the context of the thread tied to |
724 | REGCACHE. */ | |
f6ac5f3d PA |
725 | |
726 | void | |
727 | windows_nat_target::store_registers (struct regcache *regcache, int r) | |
3cee93ac | 728 | { |
28688adf | 729 | windows_thread_info *th = thread_rec (regcache->ptid (), INVALIDATE_CONTEXT); |
3de88e9a SM |
730 | |
731 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 732 | thread id in its events. */ |
9a325b7b JB |
733 | if (th == NULL) |
734 | return; | |
735 | ||
736 | if (r < 0) | |
737 | for (r = 0; r < gdbarch_num_regs (regcache->arch ()); r++) | |
738 | windows_store_one_register (regcache, th, r); | |
739 | else | |
740 | windows_store_one_register (regcache, th, r); | |
3cee93ac | 741 | } |
24e60978 | 742 | |
581e13c1 | 743 | /* Maintain a linked list of "so" information. */ |
d0e449a1 | 744 | struct lm_info_windows : public lm_info_base |
02e423b9 | 745 | { |
f8fdb78e | 746 | LPVOID load_addr = 0; |
c162ed3e | 747 | CORE_ADDR text_offset = 0; |
3ee6f623 CF |
748 | }; |
749 | ||
750 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 751 | |
de1b3c3d | 752 | static struct so_list * |
dc05df57 | 753 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 754 | { |
3ee6f623 | 755 | struct so_list *so; |
d0d0ab16 CV |
756 | char *p; |
757 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
758 | char buf[__PMAX]; |
759 | char cwd[__PMAX]; | |
3f8ad85b CF |
760 | WIN32_FIND_DATA w32_fd; |
761 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 762 | |
6badb179 CF |
763 | if (h == INVALID_HANDLE_VALUE) |
764 | strcpy (buf, name); | |
765 | else | |
3f8ad85b | 766 | { |
c914e0cc CF |
767 | FindClose (h); |
768 | strcpy (buf, name); | |
769 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
770 | { | |
771 | p = strrchr (buf, '\\'); | |
772 | if (p) | |
773 | p[1] = '\0'; | |
774 | SetCurrentDirectory (buf); | |
775 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
776 | SetCurrentDirectory (cwd); | |
777 | } | |
3f8ad85b | 778 | } |
3ee6f623 CF |
779 | if (strcasecmp (buf, "ntdll.dll") == 0) |
780 | { | |
781 | GetSystemDirectory (buf, sizeof (buf)); | |
782 | strcat (buf, "\\ntdll.dll"); | |
783 | } | |
d0d0ab16 | 784 | #else |
b3c613f2 | 785 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 786 | |
b3c613f2 | 787 | buf[0] = 0; |
d0d0ab16 CV |
788 | if (access (name, F_OK) != 0) |
789 | { | |
790 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 791 | #ifdef __USEWIDE |
d0d0ab16 CV |
792 | { |
793 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
794 | wcscat (buf, L"\\ntdll.dll"); | |
795 | } | |
b3c613f2 CF |
796 | #else |
797 | { | |
798 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
799 | strcat (buf, "\\ntdll.dll"); | |
800 | } | |
801 | #endif | |
d0d0ab16 CV |
802 | } |
803 | #endif | |
41bf6aca | 804 | so = XCNEW (struct so_list); |
f8fdb78e | 805 | lm_info_windows *li = new lm_info_windows; |
d0e449a1 SM |
806 | so->lm_info = li; |
807 | li->load_addr = load_addr; | |
de1b3c3d | 808 | strcpy (so->so_original_name, name); |
10325bc5 PA |
809 | #ifndef __CYGWIN__ |
810 | strcpy (so->so_name, buf); | |
811 | #else | |
d0d0ab16 CV |
812 | if (buf[0]) |
813 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
814 | SO_NAME_MAX_PATH_SIZE); | |
815 | else | |
816 | { | |
60c5c021 | 817 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
818 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
819 | { | |
820 | strcpy (so->so_name, rname); | |
821 | free (rname); | |
822 | } | |
823 | else | |
824 | error (_("dll path too long")); | |
825 | } | |
de1b3c3d PA |
826 | /* Record cygwin1.dll .text start/end. */ |
827 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
828 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
829 | { | |
de1b3c3d | 830 | asection *text = NULL; |
8e860359 | 831 | |
192b62ce | 832 | gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386", -1)); |
a244bdca | 833 | |
192b62ce | 834 | if (abfd == NULL) |
de1b3c3d PA |
835 | return so; |
836 | ||
192b62ce TT |
837 | if (bfd_check_format (abfd.get (), bfd_object)) |
838 | text = bfd_get_section_by_name (abfd.get (), ".text"); | |
de1b3c3d PA |
839 | |
840 | if (!text) | |
192b62ce | 841 | return so; |
de1b3c3d | 842 | |
7a9dd1b2 | 843 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 844 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
845 | file header and the section alignment. */ |
846 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
847 | load_addr + 0x1000); | |
fd361982 | 848 | cygwin_load_end = cygwin_load_start + bfd_section_size (text); |
de1b3c3d | 849 | } |
10325bc5 | 850 | #endif |
de1b3c3d PA |
851 | |
852 | return so; | |
8e860359 CF |
853 | } |
854 | ||
a816ba18 | 855 | /* See nat/windows-nat.h. */ |
1cd9feab | 856 | |
a816ba18 TT |
857 | void |
858 | windows_nat::handle_load_dll () | |
24e60978 | 859 | { |
3a4b77d8 | 860 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
9d8679cc | 861 | const char *dll_name; |
24e60978 | 862 | |
94481b8c JB |
863 | /* Try getting the DLL name via the lpImageName field of the event. |
864 | Note that Microsoft documents this fields as strictly optional, | |
865 | in the sense that it might be NULL. And the first DLL event in | |
866 | particular is explicitly documented as "likely not pass[ed]" | |
867 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
868 | dll_name = get_image_name (current_process_handle, |
869 | event->lpImageName, event->fUnicode); | |
3cee93ac | 870 | if (!dll_name) |
bf469271 | 871 | return; |
3cee93ac | 872 | |
dc05df57 | 873 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 874 | solib_end = solib_end->next; |
450005e7 | 875 | |
d0e449a1 SM |
876 | lm_info_windows *li = (lm_info_windows *) solib_end->lm_info; |
877 | ||
a74ce742 | 878 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
d0e449a1 | 879 | host_address_to_string (li->load_addr))); |
450005e7 CF |
880 | } |
881 | ||
3ee6f623 | 882 | static void |
dc05df57 | 883 | windows_free_so (struct so_list *so) |
3ee6f623 | 884 | { |
f8fdb78e SM |
885 | lm_info_windows *li = (lm_info_windows *) so->lm_info; |
886 | ||
887 | delete li; | |
de1b3c3d | 888 | xfree (so); |
3cb8e7f6 CF |
889 | } |
890 | ||
a816ba18 | 891 | /* See nat/windows-nat.h. */ |
3be75f87 | 892 | |
a816ba18 TT |
893 | void |
894 | windows_nat::handle_unload_dll () | |
d3ff4a77 | 895 | { |
d3653bf6 | 896 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 897 | struct so_list *so; |
d3ff4a77 CF |
898 | |
899 | for (so = &solib_start; so->next != NULL; so = so->next) | |
d0e449a1 SM |
900 | { |
901 | lm_info_windows *li_next = (lm_info_windows *) so->next->lm_info; | |
a25cd31f | 902 | |
d0e449a1 SM |
903 | if (li_next->load_addr == lpBaseOfDll) |
904 | { | |
905 | struct so_list *sodel = so->next; | |
7488902c | 906 | |
d0e449a1 SM |
907 | so->next = sodel->next; |
908 | if (!so->next) | |
909 | solib_end = so; | |
910 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); | |
911 | ||
912 | windows_free_so (sodel); | |
bf469271 | 913 | return; |
d0e449a1 SM |
914 | } |
915 | } | |
3929abe9 | 916 | |
ecc13e53 JB |
917 | /* We did not find any DLL that was previously loaded at this address, |
918 | so register a complaint. We do not report an error, because we have | |
919 | observed that this may be happening under some circumstances. For | |
920 | instance, running 32bit applications on x64 Windows causes us to receive | |
921 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
922 | events are apparently caused by the WOW layer, the interface between | |
923 | 32bit and 64bit worlds). */ | |
b98664d3 | 924 | complaint (_("dll starting at %s not found."), |
ecc13e53 | 925 | host_address_to_string (lpBaseOfDll)); |
bf469271 PA |
926 | } |
927 | ||
928 | /* Call FUNC wrapped in a TRY/CATCH that swallows all GDB | |
929 | exceptions. */ | |
d3ff4a77 | 930 | |
bf469271 PA |
931 | static void |
932 | catch_errors (void (*func) ()) | |
933 | { | |
a70b8144 | 934 | try |
bf469271 PA |
935 | { |
936 | func (); | |
937 | } | |
230d2906 | 938 | catch (const gdb_exception &ex) |
bf469271 PA |
939 | { |
940 | exception_print (gdb_stderr, ex); | |
941 | } | |
d3ff4a77 CF |
942 | } |
943 | ||
581e13c1 | 944 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 945 | static void |
dc05df57 | 946 | windows_clear_solib (void) |
450005e7 | 947 | { |
25057eb0 HD |
948 | struct so_list *so; |
949 | ||
950 | for (so = solib_start.next; so; so = solib_start.next) | |
951 | { | |
952 | solib_start.next = so->next; | |
953 | windows_free_so (so); | |
954 | } | |
955 | ||
450005e7 | 956 | solib_end = &solib_start; |
450005e7 | 957 | } |
295732ea | 958 | |
463888ab | 959 | static void |
0b39b52e | 960 | signal_event_command (const char *args, int from_tty) |
463888ab РИ |
961 | { |
962 | uintptr_t event_id = 0; | |
963 | char *endargs = NULL; | |
964 | ||
965 | if (args == NULL) | |
966 | error (_("signal-event requires an argument (integer event id)")); | |
967 | ||
968 | event_id = strtoumax (args, &endargs, 10); | |
969 | ||
970 | if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || | |
971 | ((HANDLE) event_id == INVALID_HANDLE_VALUE)) | |
972 | error (_("Failed to convert `%s' to event id"), args); | |
973 | ||
974 | SetEvent ((HANDLE) event_id); | |
975 | CloseHandle ((HANDLE) event_id); | |
976 | } | |
977 | ||
d41b524f TT |
978 | /* See nat/windows-nat.h. */ |
979 | ||
980 | int | |
981 | windows_nat::handle_output_debug_string (struct target_waitstatus *ourstatus) | |
3cee93ac | 982 | { |
e83e4e24 | 983 | gdb::unique_xmalloc_ptr<char> s; |
a244bdca | 984 | int retval = 0; |
3cee93ac CF |
985 | |
986 | if (!target_read_string | |
2c647436 | 987 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
e83e4e24 TT |
988 | &s, 1024, 0) |
989 | || !s || !*(s.get ())) | |
a244bdca | 990 | /* nothing to do */; |
e83e4e24 | 991 | else if (!startswith (s.get (), _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 992 | { |
10325bc5 | 993 | #ifdef __CYGWIN__ |
e83e4e24 | 994 | if (!startswith (s.get (), "cYg")) |
10325bc5 | 995 | #endif |
040ea00b | 996 | { |
e83e4e24 | 997 | char *p = strchr (s.get (), '\0'); |
040ea00b | 998 | |
e83e4e24 | 999 | if (p > s.get () && *--p == '\n') |
040ea00b | 1000 | *p = '\0'; |
e83e4e24 | 1001 | warning (("%s"), s.get ()); |
040ea00b | 1002 | } |
3cee93ac | 1003 | } |
f20c58f5 | 1004 | #ifdef __CYGWIN__ |
d3a09475 | 1005 | else |
3cee93ac | 1006 | { |
581e13c1 MS |
1007 | /* Got a cygwin signal marker. A cygwin signal is followed by |
1008 | the signal number itself and then optionally followed by the | |
1009 | thread id and address to saved context within the DLL. If | |
1010 | these are supplied, then the given thread is assumed to have | |
1011 | issued the signal and the context from the thread is assumed | |
1012 | to be stored at the given address in the inferior. Tell gdb | |
1013 | to treat this like a real signal. */ | |
3cee93ac | 1014 | char *p; |
e83e4e24 | 1015 | int sig = strtol (s.get () + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0ae534d2 | 1016 | gdb_signal gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 1017 | |
0714f9bf SS |
1018 | ourstatus->value.sig = gotasig; |
1019 | if (gotasig) | |
a244bdca CF |
1020 | { |
1021 | LPCVOID x; | |
2c15ef43 | 1022 | SIZE_T n; |
c62fa0e2 | 1023 | |
a244bdca CF |
1024 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
1025 | retval = strtoul (p, &p, 0); | |
1026 | if (!retval) | |
ab4ee614 | 1027 | retval = current_event.dwThreadId; |
40653b35 | 1028 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 1029 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
1030 | &saved_context, |
1031 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
1032 | && n == __COPY_CONTEXT_SIZE) |
1033 | have_saved_context = 1; | |
a244bdca | 1034 | } |
3cee93ac | 1035 | } |
cb832706 | 1036 | #endif |
3cee93ac | 1037 | |
a244bdca | 1038 | return retval; |
3cee93ac | 1039 | } |
24e60978 | 1040 | |
c1748f97 PM |
1041 | static int |
1042 | display_selector (HANDLE thread, DWORD sel) | |
1043 | { | |
1044 | LDT_ENTRY info; | |
46f9f931 HD |
1045 | BOOL ret; |
1046 | #ifdef __x86_64__ | |
1047 | if (wow64_process) | |
1048 | ret = Wow64GetThreadSelectorEntry (thread, sel, &info); | |
1049 | else | |
1050 | #endif | |
1051 | ret = GetThreadSelectorEntry (thread, sel, &info); | |
1052 | if (ret) | |
c1748f97 PM |
1053 | { |
1054 | int base, limit; | |
d50a0ce2 | 1055 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 1056 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
1057 | { |
1058 | puts_filtered ("Segment not present\n"); | |
1059 | return 0; | |
1060 | } | |
c1748f97 PM |
1061 | base = (info.HighWord.Bits.BaseHi << 24) + |
1062 | (info.HighWord.Bits.BaseMid << 16) | |
1063 | + info.BaseLow; | |
1064 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
1065 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 1066 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
1067 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
1068 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 1069 | puts_filtered(" 32-bit "); |
c1748f97 | 1070 | else |
baa93fa6 | 1071 | puts_filtered(" 16-bit "); |
c1748f97 PM |
1072 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1073 | { | |
1074 | case 0: | |
baa93fa6 CF |
1075 | puts_filtered ("Data (Read-Only, Exp-up"); |
1076 | break; | |
c1748f97 | 1077 | case 1: |
baa93fa6 CF |
1078 | puts_filtered ("Data (Read/Write, Exp-up"); |
1079 | break; | |
c1748f97 | 1080 | case 2: |
baa93fa6 CF |
1081 | puts_filtered ("Unused segment ("); |
1082 | break; | |
c1748f97 | 1083 | case 3: |
baa93fa6 CF |
1084 | puts_filtered ("Data (Read/Write, Exp-down"); |
1085 | break; | |
c1748f97 | 1086 | case 4: |
baa93fa6 CF |
1087 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1088 | break; | |
c1748f97 | 1089 | case 5: |
baa93fa6 | 1090 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1091 | break; |
1092 | case 6: | |
baa93fa6 | 1093 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1094 | break; |
1095 | case 7: | |
baa93fa6 | 1096 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1097 | break; |
1098 | default: | |
e432ccf1 JT |
1099 | printf_filtered ("Unknown type 0x%lx", |
1100 | (unsigned long) info.HighWord.Bits.Type); | |
c1748f97 PM |
1101 | } |
1102 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1103 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1104 | puts_filtered (")\n"); |
1105 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1106 | puts_filtered("System selector "); | |
e432ccf1 JT |
1107 | printf_filtered ("Priviledge level = %ld. ", |
1108 | (unsigned long) info.HighWord.Bits.Dpl); | |
c1748f97 | 1109 | if (info.HighWord.Bits.Granularity) |
baa93fa6 | 1110 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1111 | else |
1112 | puts_filtered ("Byte granular.\n"); | |
1113 | return 1; | |
1114 | } | |
1115 | else | |
1116 | { | |
5572ce1f PM |
1117 | DWORD err = GetLastError (); |
1118 | if (err == ERROR_NOT_SUPPORTED) | |
1119 | printf_filtered ("Function not supported\n"); | |
1120 | else | |
d50a0ce2 | 1121 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1122 | return 0; |
1123 | } | |
1124 | } | |
1125 | ||
1126 | static void | |
5fed81ff | 1127 | display_selectors (const char * args, int from_tty) |
c1748f97 | 1128 | { |
3c76026d | 1129 | if (!current_windows_thread) |
c1748f97 PM |
1130 | { |
1131 | puts_filtered ("Impossible to display selectors now.\n"); | |
1132 | return; | |
1133 | } | |
1134 | if (!args) | |
1135 | { | |
46f9f931 HD |
1136 | #ifdef __x86_64__ |
1137 | if (wow64_process) | |
1138 | { | |
1139 | puts_filtered ("Selector $cs\n"); | |
3c76026d TT |
1140 | display_selector (current_windows_thread->h, |
1141 | current_windows_thread->wow64_context.SegCs); | |
46f9f931 | 1142 | puts_filtered ("Selector $ds\n"); |
3c76026d TT |
1143 | display_selector (current_windows_thread->h, |
1144 | current_windows_thread->wow64_context.SegDs); | |
46f9f931 | 1145 | puts_filtered ("Selector $es\n"); |
3c76026d TT |
1146 | display_selector (current_windows_thread->h, |
1147 | current_windows_thread->wow64_context.SegEs); | |
46f9f931 | 1148 | puts_filtered ("Selector $ss\n"); |
3c76026d TT |
1149 | display_selector (current_windows_thread->h, |
1150 | current_windows_thread->wow64_context.SegSs); | |
46f9f931 | 1151 | puts_filtered ("Selector $fs\n"); |
3c76026d TT |
1152 | display_selector (current_windows_thread->h, |
1153 | current_windows_thread->wow64_context.SegFs); | |
46f9f931 | 1154 | puts_filtered ("Selector $gs\n"); |
3c76026d TT |
1155 | display_selector (current_windows_thread->h, |
1156 | current_windows_thread->wow64_context.SegGs); | |
46f9f931 HD |
1157 | } |
1158 | else | |
1159 | #endif | |
1160 | { | |
1161 | puts_filtered ("Selector $cs\n"); | |
3c76026d TT |
1162 | display_selector (current_windows_thread->h, |
1163 | current_windows_thread->context.SegCs); | |
46f9f931 | 1164 | puts_filtered ("Selector $ds\n"); |
3c76026d TT |
1165 | display_selector (current_windows_thread->h, |
1166 | current_windows_thread->context.SegDs); | |
46f9f931 | 1167 | puts_filtered ("Selector $es\n"); |
3c76026d TT |
1168 | display_selector (current_windows_thread->h, |
1169 | current_windows_thread->context.SegEs); | |
46f9f931 | 1170 | puts_filtered ("Selector $ss\n"); |
3c76026d TT |
1171 | display_selector (current_windows_thread->h, |
1172 | current_windows_thread->context.SegSs); | |
46f9f931 | 1173 | puts_filtered ("Selector $fs\n"); |
3c76026d TT |
1174 | display_selector (current_windows_thread->h, |
1175 | current_windows_thread->context.SegFs); | |
46f9f931 | 1176 | puts_filtered ("Selector $gs\n"); |
3c76026d TT |
1177 | display_selector (current_windows_thread->h, |
1178 | current_windows_thread->context.SegGs); | |
46f9f931 | 1179 | } |
c1748f97 PM |
1180 | } |
1181 | else | |
1182 | { | |
1183 | int sel; | |
1184 | sel = parse_and_eval_long (args); | |
1185 | printf_filtered ("Selector \"%s\"\n",args); | |
3c76026d | 1186 | display_selector (current_windows_thread->h, sel); |
c1748f97 PM |
1187 | } |
1188 | } | |
1189 | ||
8d30e395 | 1190 | /* See nat/windows-nat.h. */ |
7393af7c | 1191 | |
8d30e395 TT |
1192 | bool |
1193 | windows_nat::handle_ms_vc_exception (const EXCEPTION_RECORD *rec) | |
24e60978 | 1194 | { |
8d30e395 TT |
1195 | if (rec->NumberParameters >= 3 |
1196 | && (rec->ExceptionInformation[0] & 0xffffffff) == 0x1000) | |
24e60978 | 1197 | { |
8d30e395 TT |
1198 | DWORD named_thread_id; |
1199 | windows_thread_info *named_thread; | |
1200 | CORE_ADDR thread_name_target; | |
24cdb46e | 1201 | |
8d30e395 TT |
1202 | thread_name_target = rec->ExceptionInformation[1]; |
1203 | named_thread_id = (DWORD) (0xffffffff & rec->ExceptionInformation[2]); | |
24cdb46e | 1204 | |
8d30e395 TT |
1205 | if (named_thread_id == (DWORD) -1) |
1206 | named_thread_id = current_event.dwThreadId; | |
24cdb46e | 1207 | |
8d30e395 TT |
1208 | named_thread = thread_rec (ptid_t (current_event.dwProcessId, |
1209 | named_thread_id, 0), | |
1210 | DONT_INVALIDATE_CONTEXT); | |
1211 | if (named_thread != NULL) | |
1212 | { | |
1213 | int thread_name_len; | |
1214 | gdb::unique_xmalloc_ptr<char> thread_name; | |
24cdb46e | 1215 | |
8d30e395 TT |
1216 | thread_name_len = target_read_string (thread_name_target, |
1217 | &thread_name, 1025, NULL); | |
1218 | if (thread_name_len > 0) | |
24cdb46e | 1219 | { |
8d30e395 TT |
1220 | thread_name.get ()[thread_name_len - 1] = '\0'; |
1221 | named_thread->name = std::move (thread_name); | |
24cdb46e | 1222 | } |
24cdb46e | 1223 | } |
8d30e395 TT |
1224 | |
1225 | return true; | |
24e60978 | 1226 | } |
8d30e395 TT |
1227 | |
1228 | return false; | |
24e60978 SC |
1229 | } |
1230 | ||
17617f2d EZ |
1231 | /* Resume thread specified by ID, or all artificially suspended |
1232 | threads, if we are continuing execution. KILLED non-zero means we | |
1233 | have killed the inferior, so we should ignore weird errors due to | |
1234 | threads shutting down. */ | |
3cee93ac | 1235 | static BOOL |
17617f2d | 1236 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac | 1237 | { |
3cee93ac CF |
1238 | BOOL res; |
1239 | ||
0a4afda3 TT |
1240 | desired_stop_thread_id = id; |
1241 | ||
1242 | /* If there are pending stops, and we might plausibly hit one of | |
1243 | them, we don't want to actually continue the inferior -- we just | |
1244 | want to report the stop. In this case, we just pretend to | |
1245 | continue. See the comment by the definition of "pending_stops" | |
1246 | for details on why this is needed. */ | |
1247 | for (const auto &item : pending_stops) | |
1248 | { | |
1249 | if (desired_stop_thread_id == -1 | |
1250 | || desired_stop_thread_id == item.thread_id) | |
1251 | { | |
1252 | DEBUG_EVENTS (("windows_continue - pending stop anticipated, " | |
1253 | "desired=0x%x, item=0x%x\n", | |
1254 | desired_stop_thread_id, item.thread_id)); | |
1255 | return TRUE; | |
1256 | } | |
1257 | } | |
1258 | ||
0c3d84be | 1259 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n", |
0a4afda3 TT |
1260 | (unsigned) last_wait_event.dwProcessId, |
1261 | (unsigned) last_wait_event.dwThreadId, | |
dfe7f3ac | 1262 | continue_status == DBG_CONTINUE ? |
7393af7c | 1263 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 | 1264 | |
93366324 | 1265 | for (windows_thread_info *th : thread_list) |
0a4afda3 | 1266 | if (id == -1 || id == (int) th->tid) |
6537bb24 | 1267 | { |
0a4afda3 TT |
1268 | if (!th->suspended) |
1269 | continue; | |
46f9f931 HD |
1270 | #ifdef __x86_64__ |
1271 | if (wow64_process) | |
6537bb24 | 1272 | { |
46f9f931 HD |
1273 | if (debug_registers_changed) |
1274 | { | |
1275 | th->wow64_context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1276 | th->wow64_context.Dr0 = dr[0]; | |
1277 | th->wow64_context.Dr1 = dr[1]; | |
1278 | th->wow64_context.Dr2 = dr[2]; | |
1279 | th->wow64_context.Dr3 = dr[3]; | |
1280 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1281 | th->wow64_context.Dr7 = dr[7]; | |
1282 | } | |
1283 | if (th->wow64_context.ContextFlags) | |
1284 | { | |
1285 | DWORD ec = 0; | |
1286 | ||
1287 | if (GetExitCodeThread (th->h, &ec) | |
1288 | && ec == STILL_ACTIVE) | |
1289 | { | |
1290 | BOOL status = Wow64SetThreadContext (th->h, | |
1291 | &th->wow64_context); | |
1292 | ||
1293 | if (!killed) | |
1294 | CHECK (status); | |
1295 | } | |
1296 | th->wow64_context.ContextFlags = 0; | |
1297 | } | |
6537bb24 | 1298 | } |
46f9f931 HD |
1299 | else |
1300 | #endif | |
6537bb24 | 1301 | { |
46f9f931 | 1302 | if (debug_registers_changed) |
17617f2d | 1303 | { |
46f9f931 HD |
1304 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; |
1305 | th->context.Dr0 = dr[0]; | |
1306 | th->context.Dr1 = dr[1]; | |
1307 | th->context.Dr2 = dr[2]; | |
1308 | th->context.Dr3 = dr[3]; | |
1309 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1310 | th->context.Dr7 = dr[7]; | |
1311 | } | |
1312 | if (th->context.ContextFlags) | |
1313 | { | |
1314 | DWORD ec = 0; | |
1315 | ||
1316 | if (GetExitCodeThread (th->h, &ec) | |
1317 | && ec == STILL_ACTIVE) | |
1318 | { | |
1319 | BOOL status = SetThreadContext (th->h, &th->context); | |
17617f2d | 1320 | |
46f9f931 HD |
1321 | if (!killed) |
1322 | CHECK (status); | |
1323 | } | |
1324 | th->context.ContextFlags = 0; | |
17617f2d | 1325 | } |
6537bb24 | 1326 | } |
98a03287 | 1327 | th->resume (); |
6537bb24 | 1328 | } |
0a4afda3 TT |
1329 | else |
1330 | { | |
1331 | /* When single-stepping a specific thread, other threads must | |
1332 | be suspended. */ | |
1333 | th->suspend (); | |
1334 | } | |
6537bb24 | 1335 | |
0a4afda3 TT |
1336 | res = ContinueDebugEvent (last_wait_event.dwProcessId, |
1337 | last_wait_event.dwThreadId, | |
0714f9bf | 1338 | continue_status); |
3cee93ac | 1339 | |
68ffc902 JT |
1340 | if (!res) |
1341 | error (_("Failed to resume program execution" | |
1342 | " (ContinueDebugEvent failed, error %u)"), | |
1343 | (unsigned int) GetLastError ()); | |
1344 | ||
fa4ba8da | 1345 | debug_registers_changed = 0; |
3cee93ac CF |
1346 | return res; |
1347 | } | |
1348 | ||
d6dc8049 CF |
1349 | /* Called in pathological case where Windows fails to send a |
1350 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1351 | static DWORD |
5439edaa | 1352 | fake_create_process (void) |
3ade5333 CF |
1353 | { |
1354 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1355 | current_event.dwProcessId); | |
bf25528d CF |
1356 | if (current_process_handle != NULL) |
1357 | open_process_used = 1; | |
1358 | else | |
1359 | { | |
d50a0ce2 CV |
1360 | error (_("OpenProcess call failed, GetLastError = %u"), |
1361 | (unsigned) GetLastError ()); | |
bf25528d CF |
1362 | /* We can not debug anything in that case. */ |
1363 | } | |
3c76026d | 1364 | current_windows_thread |
7c7411bc TT |
1365 | = windows_add_thread (ptid_t (current_event.dwProcessId, |
1366 | current_event.dwThreadId, 0), | |
c559d709 JB |
1367 | current_event.u.CreateThread.hThread, |
1368 | current_event.u.CreateThread.lpThreadLocalBase, | |
1369 | true /* main_thread_p */); | |
ab4ee614 | 1370 | return current_event.dwThreadId; |
3ade5333 CF |
1371 | } |
1372 | ||
f6ac5f3d PA |
1373 | void |
1374 | windows_nat_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
a244bdca | 1375 | { |
876d1cd7 | 1376 | windows_thread_info *th; |
a244bdca CF |
1377 | DWORD continue_status = DBG_CONTINUE; |
1378 | ||
2dc38344 | 1379 | /* A specific PTID means `step only this thread id'. */ |
d7e15655 | 1380 | int resume_all = ptid == minus_one_ptid; |
2dc38344 PA |
1381 | |
1382 | /* If we're continuing all threads, it's the current inferior that | |
1383 | should be handled specially. */ | |
1384 | if (resume_all) | |
1385 | ptid = inferior_ptid; | |
a244bdca | 1386 | |
a493e3e2 | 1387 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1388 | { |
1389 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1390 | { | |
1391 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1392 | } | |
1393 | else if (sig == last_sig) | |
1394 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1395 | else | |
1396 | #if 0 | |
1397 | /* This code does not seem to work, because | |
1398 | the kernel does probably not consider changes in the ExceptionRecord | |
1399 | structure when passing the exception to the inferior. | |
1400 | Note that this seems possible in the exception handler itself. */ | |
1401 | { | |
73c13fe6 TT |
1402 | for (const xlate_exception &x : xlate) |
1403 | if (x.us == sig) | |
a244bdca | 1404 | { |
581e13c1 | 1405 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
73c13fe6 | 1406 | = x.them; |
a244bdca CF |
1407 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1408 | break; | |
1409 | } | |
1410 | if (continue_status == DBG_CONTINUE) | |
1411 | { | |
1412 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1413 | } | |
1414 | } | |
1415 | #endif | |
23942819 | 1416 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1417 | last_sig)); |
1418 | } | |
1419 | ||
a493e3e2 | 1420 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1421 | |
55dfc88f | 1422 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=0x%x, step=%d, sig=%d);\n", |
7c7411bc | 1423 | ptid.pid (), (unsigned) ptid.lwp (), step, sig)); |
a244bdca | 1424 | |
581e13c1 | 1425 | /* Get context for currently selected thread. */ |
28688adf | 1426 | th = thread_rec (inferior_ptid, DONT_INVALIDATE_CONTEXT); |
a244bdca CF |
1427 | if (th) |
1428 | { | |
46f9f931 HD |
1429 | #ifdef __x86_64__ |
1430 | if (wow64_process) | |
a244bdca | 1431 | { |
46f9f931 HD |
1432 | if (step) |
1433 | { | |
1434 | /* Single step by setting t bit. */ | |
1435 | struct regcache *regcache = get_current_regcache (); | |
1436 | struct gdbarch *gdbarch = regcache->arch (); | |
1437 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1438 | th->wow64_context.EFlags |= FLAG_TRACE_BIT; | |
1439 | } | |
a244bdca | 1440 | |
46f9f931 HD |
1441 | if (th->wow64_context.ContextFlags) |
1442 | { | |
1443 | if (debug_registers_changed) | |
1444 | { | |
1445 | th->wow64_context.Dr0 = dr[0]; | |
1446 | th->wow64_context.Dr1 = dr[1]; | |
1447 | th->wow64_context.Dr2 = dr[2]; | |
1448 | th->wow64_context.Dr3 = dr[3]; | |
1449 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1450 | th->wow64_context.Dr7 = dr[7]; | |
1451 | } | |
1452 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
1453 | th->wow64_context.ContextFlags = 0; | |
1454 | } | |
1455 | } | |
1456 | else | |
1457 | #endif | |
a244bdca | 1458 | { |
46f9f931 | 1459 | if (step) |
a244bdca | 1460 | { |
46f9f931 HD |
1461 | /* Single step by setting t bit. */ |
1462 | struct regcache *regcache = get_current_regcache (); | |
1463 | struct gdbarch *gdbarch = regcache->arch (); | |
1464 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1465 | th->context.EFlags |= FLAG_TRACE_BIT; | |
1466 | } | |
1467 | ||
1468 | if (th->context.ContextFlags) | |
1469 | { | |
1470 | if (debug_registers_changed) | |
1471 | { | |
1472 | th->context.Dr0 = dr[0]; | |
1473 | th->context.Dr1 = dr[1]; | |
1474 | th->context.Dr2 = dr[2]; | |
1475 | th->context.Dr3 = dr[3]; | |
1476 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1477 | th->context.Dr7 = dr[7]; | |
1478 | } | |
1479 | CHECK (SetThreadContext (th->h, &th->context)); | |
1480 | th->context.ContextFlags = 0; | |
a244bdca | 1481 | } |
a244bdca CF |
1482 | } |
1483 | } | |
1484 | ||
1485 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1486 | Otherwise complain. */ |
a244bdca | 1487 | |
2dc38344 | 1488 | if (resume_all) |
17617f2d | 1489 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1490 | else |
7c7411bc | 1491 | windows_continue (continue_status, ptid.lwp (), 0); |
a244bdca CF |
1492 | } |
1493 | ||
695de547 CF |
1494 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1495 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1496 | Note that this function is not available prior to Windows XP. In this case | |
1497 | we emit a warning. */ | |
d603d4b3 | 1498 | static BOOL WINAPI |
695de547 CF |
1499 | ctrl_c_handler (DWORD event_type) |
1500 | { | |
1501 | const int attach_flag = current_inferior ()->attach_flag; | |
1502 | ||
bb0613a5 PM |
1503 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1504 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1505 | return FALSE; |
1506 | ||
1507 | /* If the inferior and the debugger share the same console, do nothing as | |
1508 | the inferior has also received the Ctrl-C event. */ | |
1509 | if (!new_console && !attach_flag) | |
1510 | return TRUE; | |
1511 | ||
1512 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1513 | warning (_("Could not interrupt program. " |
1514 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1515 | |
1516 | /* Return true to tell that Ctrl-C has been handled. */ | |
1517 | return TRUE; | |
1518 | } | |
1519 | ||
0a4afda3 TT |
1520 | /* A wrapper for WaitForDebugEvent that sets "last_wait_event" |
1521 | appropriately. */ | |
1522 | static BOOL | |
1523 | wait_for_debug_event (DEBUG_EVENT *event, DWORD timeout) | |
1524 | { | |
1525 | BOOL result = WaitForDebugEvent (event, timeout); | |
1526 | if (result) | |
1527 | last_wait_event = *event; | |
1528 | return result; | |
1529 | } | |
1530 | ||
e6ad66bd JT |
1531 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1532 | requires handling by WFI (or whatever). */ | |
5b6d1e4f PA |
1533 | |
1534 | int | |
1535 | windows_nat_target::get_windows_debug_event (int pid, | |
1536 | struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1537 | { |
1538 | BOOL debug_event; | |
8a892701 | 1539 | DWORD continue_status, event_code; |
876d1cd7 | 1540 | windows_thread_info *th; |
e9534bd2 | 1541 | static windows_thread_info dummy_thread_info (0, 0, 0); |
e6ad66bd | 1542 | DWORD thread_id = 0; |
1e37c281 | 1543 | |
0a4afda3 TT |
1544 | /* If there is a relevant pending stop, report it now. See the |
1545 | comment by the definition of "pending_stops" for details on why | |
1546 | this is needed. */ | |
1547 | for (auto iter = pending_stops.begin (); | |
1548 | iter != pending_stops.end (); | |
1549 | ++iter) | |
1550 | { | |
1551 | if (desired_stop_thread_id == -1 | |
1552 | || desired_stop_thread_id == iter->thread_id) | |
1553 | { | |
1554 | thread_id = iter->thread_id; | |
1555 | *ourstatus = iter->status; | |
1556 | current_event = iter->event; | |
1557 | ||
1558 | inferior_ptid = ptid_t (current_event.dwProcessId, thread_id, 0); | |
3c76026d TT |
1559 | current_windows_thread = thread_rec (inferior_ptid, |
1560 | INVALIDATE_CONTEXT); | |
1561 | current_windows_thread->reload_context = 1; | |
0a4afda3 TT |
1562 | |
1563 | DEBUG_EVENTS (("get_windows_debug_event - " | |
1564 | "pending stop found in 0x%x (desired=0x%x)\n", | |
1565 | thread_id, desired_stop_thread_id)); | |
1566 | ||
1567 | pending_stops.erase (iter); | |
1568 | return thread_id; | |
1569 | } | |
1570 | } | |
1571 | ||
a493e3e2 | 1572 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1573 | |
0a4afda3 | 1574 | if (!(debug_event = wait_for_debug_event (¤t_event, 1000))) |
29fe111d | 1575 | goto out; |
1e37c281 | 1576 | |
1e37c281 | 1577 | continue_status = DBG_CONTINUE; |
1e37c281 | 1578 | |
8a892701 | 1579 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1580 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1581 | th = NULL; |
a244bdca | 1582 | have_saved_context = 0; |
8a892701 CF |
1583 | |
1584 | switch (event_code) | |
1e37c281 JM |
1585 | { |
1586 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1587 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1588 | (unsigned) current_event.dwProcessId, |
1589 | (unsigned) current_event.dwThreadId, | |
1590 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1591 | if (saw_create != 1) |
3ade5333 | 1592 | { |
5b6d1e4f | 1593 | inferior *inf = find_inferior_pid (this, current_event.dwProcessId); |
181e7f93 | 1594 | if (!saw_create && inf->attach_flag) |
3ade5333 | 1595 | { |
d6dc8049 CF |
1596 | /* Kludge around a Windows bug where first event is a create |
1597 | thread event. Caused when attached process does not have | |
581e13c1 | 1598 | a main thread. */ |
e6ad66bd JT |
1599 | thread_id = fake_create_process (); |
1600 | if (thread_id) | |
181e7f93 | 1601 | saw_create++; |
3ade5333 CF |
1602 | } |
1603 | break; | |
1604 | } | |
581e13c1 | 1605 | /* Record the existence of this thread. */ |
e6ad66bd | 1606 | thread_id = current_event.dwThreadId; |
c559d709 | 1607 | th = windows_add_thread |
7c7411bc | 1608 | (ptid_t (current_event.dwProcessId, current_event.dwThreadId, 0), |
c559d709 JB |
1609 | current_event.u.CreateThread.hThread, |
1610 | current_event.u.CreateThread.lpThreadLocalBase, | |
1611 | false /* main_thread_p */); | |
711e434b | 1612 | |
1e37c281 JM |
1613 | break; |
1614 | ||
1615 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1616 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1617 | (unsigned) current_event.dwProcessId, |
1618 | (unsigned) current_event.dwThreadId, | |
1619 | "EXIT_THREAD_DEBUG_EVENT")); | |
7c7411bc TT |
1620 | windows_delete_thread (ptid_t (current_event.dwProcessId, |
1621 | current_event.dwThreadId, 0), | |
c559d709 JB |
1622 | current_event.u.ExitThread.dwExitCode, |
1623 | false /* main_thread_p */); | |
2eab46b1 | 1624 | th = &dummy_thread_info; |
1e37c281 JM |
1625 | break; |
1626 | ||
1627 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1628 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1629 | (unsigned) current_event.dwProcessId, |
1630 | (unsigned) current_event.dwThreadId, | |
1631 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1632 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1633 | if (++saw_create != 1) |
bf25528d | 1634 | break; |
1e37c281 | 1635 | |
dfe7f3ac | 1636 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
581e13c1 | 1637 | /* Add the main thread. */ |
c559d709 | 1638 | th = windows_add_thread |
7c7411bc TT |
1639 | (ptid_t (current_event.dwProcessId, |
1640 | current_event.dwThreadId, 0), | |
c559d709 JB |
1641 | current_event.u.CreateProcessInfo.hThread, |
1642 | current_event.u.CreateProcessInfo.lpThreadLocalBase, | |
1643 | true /* main_thread_p */); | |
e6ad66bd | 1644 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1645 | break; |
1646 | ||
1647 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1648 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1649 | (unsigned) current_event.dwProcessId, |
1650 | (unsigned) current_event.dwThreadId, | |
1651 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1652 | if (!windows_initialization_done) |
1653 | { | |
223ffa71 | 1654 | target_terminal::ours (); |
bc1e6c81 | 1655 | target_mourn_inferior (inferior_ptid); |
16d905e2 CF |
1656 | error (_("During startup program exited with code 0x%x."), |
1657 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1658 | } | |
1659 | else if (saw_create == 1) | |
1660 | { | |
7c7411bc TT |
1661 | windows_delete_thread (ptid_t (current_event.dwProcessId, |
1662 | current_event.dwThreadId, 0), | |
c559d709 | 1663 | 0, true /* main_thread_p */); |
559e7e50 EZ |
1664 | DWORD exit_status = current_event.u.ExitProcess.dwExitCode; |
1665 | /* If the exit status looks like a fatal exception, but we | |
1666 | don't recognize the exception's code, make the original | |
1667 | exit status value available, to avoid losing | |
1668 | information. */ | |
1669 | int exit_signal | |
1670 | = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1; | |
1671 | if (exit_signal == -1) | |
1672 | { | |
1673 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1674 | ourstatus->value.integer = exit_status; | |
1675 | } | |
1676 | else | |
1677 | { | |
1678 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1679 | ourstatus->value.sig = gdb_signal_from_host (exit_signal); | |
1680 | } | |
8ed5b76e | 1681 | thread_id = current_event.dwThreadId; |
16d905e2 | 1682 | } |
8a892701 | 1683 | break; |
1e37c281 JM |
1684 | |
1685 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1686 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1687 | (unsigned) current_event.dwProcessId, |
1688 | (unsigned) current_event.dwThreadId, | |
1689 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1690 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1691 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1692 | break; |
bf469271 | 1693 | catch_errors (handle_load_dll); |
450005e7 CF |
1694 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1695 | ourstatus->value.integer = 0; | |
ab4ee614 | 1696 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1697 | break; |
1698 | ||
1699 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1700 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1701 | (unsigned) current_event.dwProcessId, |
1702 | (unsigned) current_event.dwThreadId, | |
1703 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1704 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1705 | break; |
bf469271 | 1706 | catch_errors (handle_unload_dll); |
de1b3c3d PA |
1707 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1708 | ourstatus->value.integer = 0; | |
ab4ee614 | 1709 | thread_id = current_event.dwThreadId; |
d3ff4a77 | 1710 | break; |
1e37c281 JM |
1711 | |
1712 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1713 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1714 | (unsigned) current_event.dwProcessId, |
1715 | (unsigned) current_event.dwThreadId, | |
1716 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1717 | if (saw_create != 1) |
1718 | break; | |
8d30e395 | 1719 | switch (handle_exception (ourstatus, debug_exceptions)) |
24cdb46e РИ |
1720 | { |
1721 | case HANDLE_EXCEPTION_UNHANDLED: | |
1722 | default: | |
1723 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1724 | break; | |
1725 | case HANDLE_EXCEPTION_HANDLED: | |
1726 | thread_id = current_event.dwThreadId; | |
1727 | break; | |
1728 | case HANDLE_EXCEPTION_IGNORED: | |
1729 | continue_status = DBG_CONTINUE; | |
1730 | break; | |
1731 | } | |
1e37c281 JM |
1732 | break; |
1733 | ||
581e13c1 | 1734 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1735 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1736 | (unsigned) current_event.dwProcessId, |
1737 | (unsigned) current_event.dwThreadId, | |
1738 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1739 | if (saw_create != 1) |
1740 | break; | |
e6ad66bd | 1741 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1742 | break; |
9d3789f7 | 1743 | |
1e37c281 | 1744 | default: |
dfe7f3ac CF |
1745 | if (saw_create != 1) |
1746 | break; | |
0c3d84be | 1747 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1748 | (unsigned) current_event.dwProcessId, |
1749 | (unsigned) current_event.dwThreadId); | |
1750 | printf_unfiltered (" unknown event code %u\n", | |
1751 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1752 | break; |
1753 | } | |
1754 | ||
e6ad66bd | 1755 | if (!thread_id || saw_create != 1) |
a244bdca | 1756 | { |
0a4afda3 TT |
1757 | CHECK (windows_continue (continue_status, desired_stop_thread_id, 0)); |
1758 | } | |
1759 | else if (desired_stop_thread_id != -1 && desired_stop_thread_id != thread_id) | |
1760 | { | |
1761 | /* Pending stop. See the comment by the definition of | |
1762 | "pending_stops" for details on why this is needed. */ | |
1763 | DEBUG_EVENTS (("get_windows_debug_event - " | |
1764 | "unexpected stop in 0x%x (expecting 0x%x)\n", | |
1765 | thread_id, desired_stop_thread_id)); | |
1766 | ||
1767 | if (current_event.dwDebugEventCode == EXCEPTION_DEBUG_EVENT | |
1768 | && (current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1769 | == EXCEPTION_BREAKPOINT) | |
1770 | && windows_initialization_done) | |
1771 | { | |
28688adf TT |
1772 | ptid_t ptid = ptid_t (current_event.dwProcessId, thread_id, 0); |
1773 | th = thread_rec (ptid, INVALIDATE_CONTEXT); | |
0a4afda3 TT |
1774 | th->stopped_at_software_breakpoint = true; |
1775 | } | |
1776 | pending_stops.push_back ({thread_id, *ourstatus, current_event}); | |
1777 | thread_id = 0; | |
1778 | CHECK (windows_continue (continue_status, desired_stop_thread_id, 0)); | |
a244bdca | 1779 | } |
450005e7 | 1780 | else |
9d3789f7 | 1781 | { |
7c7411bc | 1782 | inferior_ptid = ptid_t (current_event.dwProcessId, thread_id, 0); |
3c76026d TT |
1783 | current_windows_thread = th; |
1784 | if (!current_windows_thread) | |
1785 | current_windows_thread = thread_rec (inferior_ptid, | |
1786 | INVALIDATE_CONTEXT); | |
9d3789f7 | 1787 | } |
1e37c281 JM |
1788 | |
1789 | out: | |
e6ad66bd | 1790 | return thread_id; |
1e37c281 JM |
1791 | } |
1792 | ||
2dc38344 | 1793 | /* Wait for interesting events to occur in the target process. */ |
f6ac5f3d PA |
1794 | ptid_t |
1795 | windows_nat_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus, | |
1796 | int options) | |
24e60978 | 1797 | { |
2dc38344 | 1798 | int pid = -1; |
39f77062 | 1799 | |
24e60978 SC |
1800 | /* We loop when we get a non-standard exception rather than return |
1801 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1802 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1803 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1804 | isn't necessarily what you think it is. */ |
24e60978 SC |
1805 | |
1806 | while (1) | |
450005e7 | 1807 | { |
c57918b2 | 1808 | int retval; |
2b008701 | 1809 | |
695de547 CF |
1810 | /* If the user presses Ctrl-c while the debugger is waiting |
1811 | for an event, he expects the debugger to interrupt his program | |
1812 | and to get the prompt back. There are two possible situations: | |
1813 | ||
1814 | - The debugger and the program do not share the console, in | |
1815 | which case the Ctrl-c event only reached the debugger. | |
1816 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1817 | the inferior. Note that this case is working starting with |
1818 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1819 | inferior console. |
1820 | ||
1821 | - The debugger and the program share the same console, in which | |
1822 | case both debugger and inferior will receive the Ctrl-c event. | |
1823 | In that case the ctrl_c handler will ignore the event, as the | |
1824 | Ctrl-c event generated inside the inferior will trigger the | |
1825 | expected debug event. | |
1826 | ||
1827 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1828 | signal first and the delay until GDB receives that signal | |
1829 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1830 | after we have unblocked the CTRL+C handler. This would | |
1831 | lead to the debugger stopping prematurely while handling | |
1832 | the new-thread event that comes with the handling of the SIGINT | |
1833 | inside the inferior, and then stop again immediately when | |
1834 | the user tries to resume the execution in the inferior. | |
1835 | This is a classic race that we should try to fix one day. */ | |
1836 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
5b6d1e4f | 1837 | retval = get_windows_debug_event (pid, ourstatus); |
695de547 | 1838 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1839 | |
450005e7 | 1840 | if (retval) |
0a4afda3 TT |
1841 | { |
1842 | ptid_t result = ptid_t (current_event.dwProcessId, retval, 0); | |
1843 | ||
3c76026d | 1844 | if (current_windows_thread != nullptr) |
0a4afda3 | 1845 | { |
3c76026d | 1846 | current_windows_thread->stopped_at_software_breakpoint = false; |
0a4afda3 TT |
1847 | if (current_event.dwDebugEventCode == EXCEPTION_DEBUG_EVENT |
1848 | && (current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1849 | == EXCEPTION_BREAKPOINT) | |
1850 | && windows_initialization_done) | |
3c76026d | 1851 | current_windows_thread->stopped_at_software_breakpoint = true; |
0a4afda3 TT |
1852 | } |
1853 | ||
1854 | return result; | |
1855 | } | |
450005e7 CF |
1856 | else |
1857 | { | |
1858 | int detach = 0; | |
3cee93ac | 1859 | |
98bbd631 AC |
1860 | if (deprecated_ui_loop_hook != NULL) |
1861 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1862 | |
450005e7 | 1863 | if (detach) |
f6ac5f3d | 1864 | kill (); |
450005e7 CF |
1865 | } |
1866 | } | |
24e60978 SC |
1867 | } |
1868 | ||
ea39ad35 JB |
1869 | /* Iterate over all DLLs currently mapped by our inferior, and |
1870 | add them to our list of solibs. */ | |
94481b8c JB |
1871 | |
1872 | static void | |
ea39ad35 | 1873 | windows_add_all_dlls (void) |
94481b8c | 1874 | { |
94481b8c JB |
1875 | HMODULE dummy_hmodule; |
1876 | DWORD cb_needed; | |
1877 | HMODULE *hmodules; | |
1878 | int i; | |
1879 | ||
46f9f931 HD |
1880 | #ifdef __x86_64__ |
1881 | if (wow64_process) | |
1882 | { | |
1883 | if (EnumProcessModulesEx (current_process_handle, &dummy_hmodule, | |
1884 | sizeof (HMODULE), &cb_needed, | |
1885 | LIST_MODULES_32BIT) == 0) | |
1886 | return; | |
1887 | } | |
1888 | else | |
1889 | #endif | |
1890 | { | |
1891 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, | |
1892 | sizeof (HMODULE), &cb_needed) == 0) | |
1893 | return; | |
1894 | } | |
94481b8c JB |
1895 | |
1896 | if (cb_needed < 1) | |
1897 | return; | |
1898 | ||
1899 | hmodules = (HMODULE *) alloca (cb_needed); | |
46f9f931 HD |
1900 | #ifdef __x86_64__ |
1901 | if (wow64_process) | |
1902 | { | |
1903 | if (EnumProcessModulesEx (current_process_handle, hmodules, | |
1904 | cb_needed, &cb_needed, | |
1905 | LIST_MODULES_32BIT) == 0) | |
1906 | return; | |
1907 | } | |
1908 | else | |
1909 | #endif | |
1910 | { | |
1911 | if (EnumProcessModules (current_process_handle, hmodules, | |
1912 | cb_needed, &cb_needed) == 0) | |
1913 | return; | |
1914 | } | |
94481b8c | 1915 | |
d503b685 HD |
1916 | char system_dir[__PMAX]; |
1917 | char syswow_dir[__PMAX]; | |
1918 | size_t system_dir_len = 0; | |
ebea7626 HD |
1919 | bool convert_syswow_dir = false; |
1920 | #ifdef __x86_64__ | |
d503b685 | 1921 | if (wow64_process) |
ebea7626 | 1922 | #endif |
d503b685 | 1923 | { |
ebea7626 HD |
1924 | /* This fails on 32bit Windows because it has no SysWOW64 directory, |
1925 | and in this case a path conversion isn't necessary. */ | |
1926 | UINT len = GetSystemWow64DirectoryA (syswow_dir, sizeof (syswow_dir)); | |
1927 | if (len > 0) | |
1928 | { | |
1929 | /* Check that we have passed a large enough buffer. */ | |
1930 | gdb_assert (len < sizeof (syswow_dir)); | |
1931 | ||
1932 | len = GetSystemDirectoryA (system_dir, sizeof (system_dir)); | |
1933 | /* Error check. */ | |
1934 | gdb_assert (len != 0); | |
1935 | /* Check that we have passed a large enough buffer. */ | |
1936 | gdb_assert (len < sizeof (system_dir)); | |
1937 | ||
1938 | strcat (system_dir, "\\"); | |
1939 | strcat (syswow_dir, "\\"); | |
1940 | system_dir_len = strlen (system_dir); | |
1941 | ||
1942 | convert_syswow_dir = true; | |
1943 | } | |
1944 | ||
d503b685 | 1945 | } |
ea39ad35 | 1946 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
1947 | { |
1948 | MODULEINFO mi; | |
774f74c2 PM |
1949 | #ifdef __USEWIDE |
1950 | wchar_t dll_name[__PMAX]; | |
d503b685 | 1951 | char dll_name_mb[__PMAX]; |
774f74c2 | 1952 | #else |
94481b8c | 1953 | char dll_name[__PMAX]; |
774f74c2 | 1954 | #endif |
d503b685 | 1955 | const char *name; |
94481b8c JB |
1956 | if (GetModuleInformation (current_process_handle, hmodules[i], |
1957 | &mi, sizeof (mi)) == 0) | |
1958 | continue; | |
1959 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
1960 | dll_name, sizeof (dll_name)) == 0) | |
1961 | continue; | |
774f74c2 | 1962 | #ifdef __USEWIDE |
d503b685 HD |
1963 | wcstombs (dll_name_mb, dll_name, __PMAX); |
1964 | name = dll_name_mb; | |
774f74c2 PM |
1965 | #else |
1966 | name = dll_name; | |
1967 | #endif | |
ebea7626 | 1968 | /* Convert the DLL path of 32bit processes returned by |
d503b685 HD |
1969 | GetModuleFileNameEx from the 64bit system directory to the |
1970 | 32bit syswow64 directory if necessary. */ | |
1971 | std::string syswow_dll_path; | |
ebea7626 | 1972 | if (convert_syswow_dir |
d503b685 HD |
1973 | && strncasecmp (name, system_dir, system_dir_len) == 0 |
1974 | && strchr (name + system_dir_len, '\\') == nullptr) | |
1975 | { | |
1976 | syswow_dll_path = syswow_dir; | |
1977 | syswow_dll_path += name + system_dir_len; | |
1978 | name = syswow_dll_path.c_str(); | |
1979 | } | |
ea39ad35 JB |
1980 | |
1981 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
1982 | solib_end = solib_end->next; | |
94481b8c JB |
1983 | } |
1984 | } | |
1985 | ||
9d3789f7 | 1986 | static void |
dc05df57 | 1987 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 | 1988 | { |
fa4ba8da | 1989 | int i; |
d6b48e9c | 1990 | struct inferior *inf; |
9d3789f7 | 1991 | |
a493e3e2 | 1992 | last_sig = GDB_SIGNAL_0; |
bf25528d | 1993 | open_process_used = 0; |
fa4ba8da | 1994 | debug_registers_changed = 0; |
dfe7f3ac | 1995 | debug_registers_used = 0; |
fa4ba8da PM |
1996 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1997 | dr[i] = 0; | |
10325bc5 | 1998 | #ifdef __CYGWIN__ |
de1b3c3d | 1999 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 2000 | #endif |
9d3789f7 CF |
2001 | current_event.dwProcessId = pid; |
2002 | memset (¤t_event, 0, sizeof (current_event)); | |
6a3cb8e8 PA |
2003 | if (!target_is_pushed (ops)) |
2004 | push_target (ops); | |
cb851954 | 2005 | disable_breakpoints_in_shlibs (); |
dc05df57 | 2006 | windows_clear_solib (); |
88056fbb | 2007 | clear_proceed_status (0); |
9d3789f7 CF |
2008 | init_wait_for_inferior (); |
2009 | ||
46f9f931 HD |
2010 | #ifdef __x86_64__ |
2011 | ignore_first_breakpoint = !attaching && wow64_process; | |
2012 | ||
2013 | if (!wow64_process) | |
2014 | { | |
2015 | windows_set_context_register_offsets (amd64_mappings); | |
2016 | windows_set_segment_register_p (amd64_windows_segment_register_p); | |
2017 | } | |
2018 | else | |
2019 | #endif | |
2020 | { | |
2021 | windows_set_context_register_offsets (i386_mappings); | |
2022 | windows_set_segment_register_p (i386_windows_segment_register_p); | |
2023 | } | |
2024 | ||
6c95b8df PA |
2025 | inf = current_inferior (); |
2026 | inferior_appeared (inf, pid); | |
181e7f93 | 2027 | inf->attach_flag = attaching; |
7f9f62ba | 2028 | |
9f9d052e PM |
2029 | /* Make the new process the current inferior, so terminal handling |
2030 | can rely on it. When attaching, we don't know about any thread | |
2031 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 2032 | current thread until we report an event out of windows_wait. */ |
f2907e49 | 2033 | inferior_ptid = ptid_t (pid); |
9f9d052e | 2034 | |
223ffa71 TT |
2035 | target_terminal::init (); |
2036 | target_terminal::inferior (); | |
9d3789f7 | 2037 | |
16d905e2 | 2038 | windows_initialization_done = 0; |
c72f45d1 | 2039 | |
9d3789f7 CF |
2040 | while (1) |
2041 | { | |
c72f45d1 PA |
2042 | struct target_waitstatus status; |
2043 | ||
f6ac5f3d | 2044 | ops->wait (minus_one_ptid, &status, 0); |
c72f45d1 PA |
2045 | |
2046 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
2047 | events. */ | |
2048 | if (status.kind != TARGET_WAITKIND_LOADED | |
2049 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 2050 | break; |
c72f45d1 | 2051 | |
f6ac5f3d | 2052 | ops->resume (minus_one_ptid, 0, GDB_SIGNAL_0); |
9d3789f7 | 2053 | } |
eff8332b | 2054 | |
ea39ad35 | 2055 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
2056 | we can iterate over all DLLs and load them in. |
2057 | ||
2058 | We avoid doing it any earlier because, on certain versions of Windows, | |
2059 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
2060 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
2061 | include the DLL name, preventing us from creating an associated SO. | |
2062 | A possible explanation is that ntdll.dll might be mapped before | |
2063 | the SO info gets created by the Windows system -- ntdll.dll is | |
2064 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
2065 | do not seem to suffer from that problem. | |
2066 | ||
2067 | Rather than try to work around this sort of issue, it is much | |
2068 | simpler to just ignore DLL load/unload events during the startup | |
2069 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 2070 | windows_add_all_dlls (); |
94481b8c | 2071 | |
16d905e2 | 2072 | windows_initialization_done = 1; |
9d3789f7 CF |
2073 | return; |
2074 | } | |
2075 | ||
616a9dc4 CV |
2076 | /* Try to set or remove a user privilege to the current process. Return -1 |
2077 | if that fails, the previous setting of that privilege otherwise. | |
2078 | ||
2079 | This code is copied from the Cygwin source code and rearranged to allow | |
2080 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 2081 | available on NT/2K/XP. */ |
616a9dc4 CV |
2082 | static int |
2083 | set_process_privilege (const char *privilege, BOOL enable) | |
2084 | { | |
616a9dc4 CV |
2085 | HANDLE token_hdl = NULL; |
2086 | LUID restore_priv; | |
2087 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
2088 | int ret = -1; | |
2089 | DWORD size; | |
2090 | ||
616a9dc4 CV |
2091 | if (!OpenProcessToken (GetCurrentProcess (), |
2092 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
2093 | &token_hdl)) | |
2094 | goto out; | |
2095 | ||
418c6cb3 | 2096 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
2097 | goto out; |
2098 | ||
2099 | new_priv.PrivilegeCount = 1; | |
2100 | new_priv.Privileges[0].Luid = restore_priv; | |
2101 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
2102 | ||
2103 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 2104 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
2105 | goto out; |
2106 | #if 0 | |
2107 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
2108 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 2109 | windows_attach(). */ |
616a9dc4 | 2110 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 2111 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
2112 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
2113 | goto out; | |
2114 | #endif | |
2115 | ||
2116 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
2117 | ||
2118 | out: | |
2119 | if (token_hdl) | |
2120 | CloseHandle (token_hdl); | |
2121 | ||
2122 | return ret; | |
2123 | } | |
2124 | ||
02cc9f49 | 2125 | /* Attach to process PID, then initialize for debugging it. */ |
f6ac5f3d PA |
2126 | |
2127 | void | |
2128 | windows_nat_target::attach (const char *args, int from_tty) | |
24e60978 SC |
2129 | { |
2130 | BOOL ok; | |
559e75c0 | 2131 | DWORD pid; |
24e60978 | 2132 | |
74164c56 | 2133 | pid = parse_pid_to_attach (args); |
24e60978 | 2134 | |
616a9dc4 CV |
2135 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
2136 | { | |
2137 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
2138 | printf_unfiltered ("This can cause attach to " |
2139 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
2140 | } |
2141 | ||
dc05df57 | 2142 | windows_init_thread_list (); |
9d3789f7 | 2143 | ok = DebugActiveProcess (pid); |
91a175b3 | 2144 | saw_create = 0; |
24e60978 | 2145 | |
10325bc5 | 2146 | #ifdef __CYGWIN__ |
24e60978 | 2147 | if (!ok) |
baa93fa6 | 2148 | { |
581e13c1 | 2149 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
2150 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
2151 | ||
2152 | if (pid > 0) | |
2153 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
2154 | } |
2155 | #endif | |
baa93fa6 | 2156 | |
10325bc5 | 2157 | if (!ok) |
c9739b6a TT |
2158 | error (_("Can't attach to process %u (error %u)"), |
2159 | (unsigned) pid, (unsigned) GetLastError ()); | |
24e60978 | 2160 | |
2b008701 | 2161 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 2162 | |
24e60978 SC |
2163 | if (from_tty) |
2164 | { | |
d9fa87f4 | 2165 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2166 | |
2167 | if (exec_file) | |
2168 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
a068643d | 2169 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2170 | else |
2171 | printf_unfiltered ("Attaching to %s\n", | |
a068643d | 2172 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2173 | } |
2174 | ||
46f9f931 HD |
2175 | #ifdef __x86_64__ |
2176 | HANDLE h = OpenProcess (PROCESS_QUERY_INFORMATION, FALSE, pid); | |
2177 | if (h != NULL) | |
2178 | { | |
2179 | BOOL wow64; | |
2180 | if (IsWow64Process (h, &wow64)) | |
2181 | wow64_process = wow64; | |
2182 | CloseHandle (h); | |
2183 | } | |
2184 | #endif | |
2185 | ||
f6ac5f3d | 2186 | do_initial_windows_stuff (this, pid, 1); |
223ffa71 | 2187 | target_terminal::ours (); |
24e60978 SC |
2188 | } |
2189 | ||
f6ac5f3d PA |
2190 | void |
2191 | windows_nat_target::detach (inferior *inf, int from_tty) | |
24e60978 | 2192 | { |
02cc9f49 CV |
2193 | int detached = 1; |
2194 | ||
8473b447 | 2195 | ptid_t ptid = minus_one_ptid; |
f6ac5f3d | 2196 | resume (ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 2197 | |
2b008701 CF |
2198 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
2199 | { | |
d50a0ce2 CV |
2200 | error (_("Can't detach process %u (error %u)"), |
2201 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 2202 | detached = 0; |
02cc9f49 | 2203 | } |
2b008701 CF |
2204 | DebugSetProcessKillOnExit (FALSE); |
2205 | ||
02cc9f49 | 2206 | if (detached && from_tty) |
24e60978 | 2207 | { |
a121b7c1 | 2208 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2209 | if (exec_file == 0) |
2210 | exec_file = ""; | |
d50a0ce2 CV |
2211 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
2212 | (unsigned) current_event.dwProcessId); | |
24e60978 | 2213 | } |
7f9f62ba | 2214 | |
df7e5265 | 2215 | x86_cleanup_dregs (); |
39f77062 | 2216 | inferior_ptid = null_ptid; |
b7a08269 | 2217 | detach_inferior (inf); |
7f9f62ba | 2218 | |
f6ac5f3d | 2219 | maybe_unpush_target (); |
24e60978 SC |
2220 | } |
2221 | ||
47f7ffdb JB |
2222 | /* Try to determine the executable filename. |
2223 | ||
2224 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
2225 | ||
2226 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
2227 | this function returns nonzero. | |
2228 | ||
2229 | Otherwise, this function returns zero and the contents of | |
2230 | EXE_NAME_RET is undefined. */ | |
2231 | ||
2232 | static int | |
2233 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
2234 | { | |
2235 | DWORD len; | |
2236 | HMODULE dh_buf; | |
2237 | DWORD cbNeeded; | |
2238 | ||
2239 | cbNeeded = 0; | |
46f9f931 HD |
2240 | #ifdef __x86_64__ |
2241 | if (wow64_process) | |
2242 | { | |
2243 | if (!EnumProcessModulesEx (current_process_handle, &dh_buf, | |
2244 | sizeof (HMODULE), &cbNeeded, | |
2245 | LIST_MODULES_32BIT) || !cbNeeded) | |
2246 | return 0; | |
2247 | } | |
2248 | else | |
2249 | #endif | |
2250 | { | |
2251 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
2252 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
2253 | return 0; | |
2254 | } | |
47f7ffdb JB |
2255 | |
2256 | /* We know the executable is always first in the list of modules, | |
2257 | which we just fetched. So no need to fetch more. */ | |
2258 | ||
2259 | #ifdef __CYGWIN__ | |
2260 | { | |
2261 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
2262 | the filename into a temporary buffer first, and then convert it | |
2263 | to POSIX format into the destination buffer. */ | |
0ae534d2 | 2264 | cygwin_buf_t *pathbuf = (cygwin_buf_t *) alloca (exe_name_max_len * sizeof (cygwin_buf_t)); |
47f7ffdb JB |
2265 | |
2266 | len = GetModuleFileNameEx (current_process_handle, | |
2267 | dh_buf, pathbuf, exe_name_max_len); | |
2268 | if (len == 0) | |
2269 | error (_("Error getting executable filename: %u."), | |
2270 | (unsigned) GetLastError ()); | |
2271 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
2272 | exe_name_max_len) < 0) | |
2273 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
2274 | } | |
2275 | #else | |
2276 | len = GetModuleFileNameEx (current_process_handle, | |
2277 | dh_buf, exe_name_ret, exe_name_max_len); | |
2278 | if (len == 0) | |
2279 | error (_("Error getting executable filename: %u."), | |
2280 | (unsigned) GetLastError ()); | |
2281 | #endif | |
2282 | ||
2283 | return 1; /* success */ | |
2284 | } | |
2285 | ||
2286 | /* The pid_to_exec_file target_ops method for this platform. */ | |
2287 | ||
f6ac5f3d PA |
2288 | char * |
2289 | windows_nat_target::pid_to_exec_file (int pid) | |
47216e51 | 2290 | { |
b3c613f2 | 2291 | static char path[__PMAX]; |
10325bc5 | 2292 | #ifdef __CYGWIN__ |
581e13c1 | 2293 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
2294 | int nchars; |
2295 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
2296 | |
2297 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
2298 | nchars = readlink (procexe, path, sizeof(path)); |
2299 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 2300 | { |
33605d39 CF |
2301 | path[nchars] = '\0'; /* Got it */ |
2302 | return path; | |
47216e51 | 2303 | } |
10325bc5 PA |
2304 | #endif |
2305 | ||
33605d39 | 2306 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 2307 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 2308 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
2309 | path[0] = '\0'; |
2310 | ||
2311 | return path; | |
47216e51 CV |
2312 | } |
2313 | ||
24e60978 SC |
2314 | /* Print status information about what we're accessing. */ |
2315 | ||
f6ac5f3d PA |
2316 | void |
2317 | windows_nat_target::files_info () | |
24e60978 | 2318 | { |
181e7f93 PA |
2319 | struct inferior *inf = current_inferior (); |
2320 | ||
24e60978 | 2321 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 | 2322 | inf->attach_flag ? "attached" : "child", |
a068643d | 2323 | target_pid_to_str (inferior_ptid).c_str ()); |
24e60978 SC |
2324 | } |
2325 | ||
cd44747c PM |
2326 | /* Modify CreateProcess parameters for use of a new separate console. |
2327 | Parameters are: | |
2328 | *FLAGS: DWORD parameter for general process creation flags. | |
2329 | *SI: STARTUPINFO structure, for which the console window size and | |
2330 | console buffer size is filled in if GDB is running in a console. | |
2331 | to create the new console. | |
2332 | The size of the used font is not available on all versions of | |
2333 | Windows OS. Furthermore, the current font might not be the default | |
2334 | font, but this is still better than before. | |
2335 | If the windows and buffer sizes are computed, | |
2336 | SI->DWFLAGS is changed so that this information is used | |
2337 | by CreateProcess function. */ | |
2338 | ||
2339 | static void | |
2340 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
2341 | { | |
2342 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
2343 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
2344 | ||
2345 | if (hconsole != INVALID_HANDLE_VALUE) | |
2346 | { | |
2347 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2348 | COORD font_size; | |
2349 | CONSOLE_FONT_INFO cfi; | |
2350 | ||
2351 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2352 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2353 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2354 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2355 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2356 | if (font_size.X) | |
2357 | si->dwXSize *= font_size.X; | |
2358 | else | |
2359 | si->dwXSize *= 8; | |
2360 | if (font_size.Y) | |
2361 | si->dwYSize *= font_size.Y; | |
2362 | else | |
2363 | si->dwYSize *= 12; | |
2364 | si->dwXCountChars = sbinfo.dwSize.X; | |
2365 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2366 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2367 | } | |
2368 | *flags |= CREATE_NEW_CONSOLE; | |
2369 | } | |
2370 | ||
c93dbcba EZ |
2371 | #ifndef __CYGWIN__ |
2372 | /* Function called by qsort to sort environment strings. */ | |
2373 | ||
2374 | static int | |
2375 | envvar_cmp (const void *a, const void *b) | |
2376 | { | |
2377 | const char **p = (const char **) a; | |
2378 | const char **q = (const char **) b; | |
2379 | return strcasecmp (*p, *q); | |
2380 | } | |
2381 | #endif | |
2382 | ||
b7ff339d CV |
2383 | #ifdef __CYGWIN__ |
2384 | static void | |
2385 | clear_win32_environment (char **env) | |
2386 | { | |
2387 | int i; | |
2388 | size_t len; | |
2389 | wchar_t *copy = NULL, *equalpos; | |
2390 | ||
2391 | for (i = 0; env[i] && *env[i]; i++) | |
2392 | { | |
2393 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2394 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2395 | mbstowcs (copy, env[i], len); | |
2396 | equalpos = wcschr (copy, L'='); | |
2397 | if (equalpos) | |
2398 | *equalpos = L'\0'; | |
2399 | SetEnvironmentVariableW (copy, NULL); | |
2400 | } | |
2401 | xfree (copy); | |
2402 | } | |
2403 | #endif | |
2404 | ||
8ba42bc5 EZ |
2405 | #ifndef __CYGWIN__ |
2406 | ||
2407 | /* Redirection of inferior I/O streams for native MS-Windows programs. | |
2408 | Unlike on Unix, where this is handled by invoking the inferior via | |
2409 | the shell, on MS-Windows we need to emulate the cmd.exe shell. | |
2410 | ||
2411 | The official documentation of the cmd.exe redirection features is here: | |
2412 | ||
2413 | http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/redirection.mspx | |
2414 | ||
2415 | (That page talks about Windows XP, but there's no newer | |
2416 | documentation, so we assume later versions of cmd.exe didn't change | |
2417 | anything.) | |
2418 | ||
2419 | Caveat: the documentation on that page seems to include a few lies. | |
2420 | For example, it describes strange constructs 1<&2 and 2<&1, which | |
2421 | seem to work only when 1>&2 resp. 2>&1 would make sense, and so I | |
2422 | think the cmd.exe parser of the redirection symbols simply doesn't | |
2423 | care about the < vs > distinction in these cases. Therefore, the | |
2424 | supported features are explicitly documented below. | |
2425 | ||
2426 | The emulation below aims at supporting all the valid use cases | |
2427 | supported by cmd.exe, which include: | |
2428 | ||
2429 | < FILE redirect standard input from FILE | |
2430 | 0< FILE redirect standard input from FILE | |
2431 | <&N redirect standard input from file descriptor N | |
2432 | 0<&N redirect standard input from file descriptor N | |
2433 | > FILE redirect standard output to FILE | |
2434 | >> FILE append standard output to FILE | |
2435 | 1>> FILE append standard output to FILE | |
2436 | >&N redirect standard output to file descriptor N | |
2437 | 1>&N redirect standard output to file descriptor N | |
2438 | >>&N append standard output to file descriptor N | |
2439 | 1>>&N append standard output to file descriptor N | |
2440 | 2> FILE redirect standard error to FILE | |
2441 | 2>> FILE append standard error to FILE | |
2442 | 2>&N redirect standard error to file descriptor N | |
2443 | 2>>&N append standard error to file descriptor N | |
2444 | ||
2445 | Note that using N > 2 in the above construct is supported, but | |
2446 | requires that the corresponding file descriptor be open by some | |
2447 | means elsewhere or outside GDB. Also note that using ">&0" or | |
2448 | "<&2" will generally fail, because the file descriptor redirected | |
2449 | from is normally open in an incompatible mode (e.g., FD 0 is open | |
2450 | for reading only). IOW, use of such tricks is not recommended; | |
2451 | you are on your own. | |
2452 | ||
2453 | We do NOT support redirection of file descriptors above 2, as in | |
2454 | "3>SOME-FILE", because MinGW compiled programs don't (supporting | |
2455 | that needs special handling in the startup code that MinGW | |
2456 | doesn't have). Pipes are also not supported. | |
2457 | ||
2458 | As for invalid use cases, where the redirection contains some | |
2459 | error, the emulation below will detect that and produce some | |
2460 | error and/or failure. But the behavior in those cases is not | |
2461 | bug-for-bug compatible with what cmd.exe does in those cases. | |
2462 | That's because what cmd.exe does then is not well defined, and | |
2463 | seems to be a side effect of the cmd.exe parsing of the command | |
2464 | line more than anything else. For example, try redirecting to an | |
2465 | invalid file name, as in "> foo:bar". | |
2466 | ||
2467 | There are also minor syntactic deviations from what cmd.exe does | |
2468 | in some corner cases. For example, it doesn't support the likes | |
2469 | of "> &foo" to mean redirect to file named literally "&foo"; we | |
2470 | do support that here, because that, too, sounds like some issue | |
2471 | with the cmd.exe parser. Another nicety is that we support | |
2472 | redirection targets that use file names with forward slashes, | |
2473 | something cmd.exe doesn't -- this comes in handy since GDB | |
2474 | file-name completion can be used when typing the command line for | |
2475 | the inferior. */ | |
2476 | ||
2477 | /* Support routines for redirecting standard handles of the inferior. */ | |
2478 | ||
2479 | /* Parse a single redirection spec, open/duplicate the specified | |
2480 | file/fd, and assign the appropriate value to one of the 3 standard | |
2481 | file descriptors. */ | |
2482 | static int | |
2483 | redir_open (const char *redir_string, int *inp, int *out, int *err) | |
2484 | { | |
2485 | int *fd, ref_fd = -2; | |
2486 | int mode; | |
2487 | const char *fname = redir_string + 1; | |
2488 | int rc = *redir_string; | |
2489 | ||
2490 | switch (rc) | |
2491 | { | |
2492 | case '0': | |
2493 | fname++; | |
2494 | /* FALLTHROUGH */ | |
2495 | case '<': | |
2496 | fd = inp; | |
2497 | mode = O_RDONLY; | |
2498 | break; | |
2499 | case '1': case '2': | |
2500 | fname++; | |
2501 | /* FALLTHROUGH */ | |
2502 | case '>': | |
2503 | fd = (rc == '2') ? err : out; | |
2504 | mode = O_WRONLY | O_CREAT; | |
2505 | if (*fname == '>') | |
2506 | { | |
2507 | fname++; | |
2508 | mode |= O_APPEND; | |
2509 | } | |
2510 | else | |
2511 | mode |= O_TRUNC; | |
2512 | break; | |
2513 | default: | |
2514 | return -1; | |
2515 | } | |
2516 | ||
2517 | if (*fname == '&' && '0' <= fname[1] && fname[1] <= '9') | |
2518 | { | |
2519 | /* A reference to a file descriptor. */ | |
2520 | char *fdtail; | |
2521 | ref_fd = (int) strtol (fname + 1, &fdtail, 10); | |
2522 | if (fdtail > fname + 1 && *fdtail == '\0') | |
2523 | { | |
2524 | /* Don't allow redirection when open modes are incompatible. */ | |
2525 | if ((ref_fd == 0 && (fd == out || fd == err)) | |
2526 | || ((ref_fd == 1 || ref_fd == 2) && fd == inp)) | |
2527 | { | |
2528 | errno = EPERM; | |
2529 | return -1; | |
2530 | } | |
2531 | if (ref_fd == 0) | |
2532 | ref_fd = *inp; | |
2533 | else if (ref_fd == 1) | |
2534 | ref_fd = *out; | |
2535 | else if (ref_fd == 2) | |
2536 | ref_fd = *err; | |
2537 | } | |
2538 | else | |
2539 | { | |
2540 | errno = EBADF; | |
2541 | return -1; | |
2542 | } | |
2543 | } | |
2544 | else | |
2545 | fname++; /* skip the separator space */ | |
2546 | /* If the descriptor is already open, close it. This allows | |
2547 | multiple specs of redirections for the same stream, which is | |
2548 | somewhat nonsensical, but still valid and supported by cmd.exe. | |
2549 | (But cmd.exe only opens a single file in this case, the one | |
2550 | specified by the last redirection spec on the command line.) */ | |
2551 | if (*fd >= 0) | |
2552 | _close (*fd); | |
2553 | if (ref_fd == -2) | |
2554 | { | |
2555 | *fd = _open (fname, mode, _S_IREAD | _S_IWRITE); | |
2556 | if (*fd < 0) | |
2557 | return -1; | |
2558 | } | |
2559 | else if (ref_fd == -1) | |
2560 | *fd = -1; /* reset to default destination */ | |
2561 | else | |
2562 | { | |
2563 | *fd = _dup (ref_fd); | |
2564 | if (*fd < 0) | |
2565 | return -1; | |
2566 | } | |
2567 | /* _open just sets a flag for O_APPEND, which won't be passed to the | |
2568 | inferior, so we need to actually move the file pointer. */ | |
2569 | if ((mode & O_APPEND) != 0) | |
2570 | _lseek (*fd, 0L, SEEK_END); | |
2571 | return 0; | |
2572 | } | |
2573 | ||
2574 | /* Canonicalize a single redirection spec and set up the corresponding | |
2575 | file descriptor as specified. */ | |
2576 | static int | |
2577 | redir_set_redirection (const char *s, int *inp, int *out, int *err) | |
2578 | { | |
2579 | char buf[__PMAX + 2 + 5]; /* extra space for quotes & redirection string */ | |
2580 | char *d = buf; | |
2581 | const char *start = s; | |
2582 | int quote = 0; | |
2583 | ||
2584 | *d++ = *s++; /* copy the 1st character, < or > or a digit */ | |
2585 | if ((*start == '>' || *start == '1' || *start == '2') | |
2586 | && *s == '>') | |
2587 | { | |
2588 | *d++ = *s++; | |
2589 | if (*s == '>' && *start != '>') | |
2590 | *d++ = *s++; | |
2591 | } | |
2592 | else if (*start == '0' && *s == '<') | |
2593 | *d++ = *s++; | |
2594 | /* cmd.exe recognizes "&N" only immediately after the redirection symbol. */ | |
2595 | if (*s != '&') | |
2596 | { | |
2597 | while (isspace (*s)) /* skip whitespace before file name */ | |
2598 | s++; | |
2599 | *d++ = ' '; /* separate file name with a single space */ | |
2600 | } | |
2601 | ||
2602 | /* Copy the file name. */ | |
2603 | while (*s) | |
2604 | { | |
2605 | /* Remove quoting characters from the file name in buf[]. */ | |
2606 | if (*s == '"') /* could support '..' quoting here */ | |
2607 | { | |
2608 | if (!quote) | |
2609 | quote = *s++; | |
2610 | else if (*s == quote) | |
2611 | { | |
2612 | quote = 0; | |
2613 | s++; | |
2614 | } | |
2615 | else | |
2616 | *d++ = *s++; | |
2617 | } | |
2618 | else if (*s == '\\') | |
2619 | { | |
2620 | if (s[1] == '"') /* could support '..' here */ | |
2621 | s++; | |
2622 | *d++ = *s++; | |
2623 | } | |
2624 | else if (isspace (*s) && !quote) | |
2625 | break; | |
2626 | else | |
2627 | *d++ = *s++; | |
2628 | if (d - buf >= sizeof (buf) - 1) | |
2629 | { | |
2630 | errno = ENAMETOOLONG; | |
2631 | return 0; | |
2632 | } | |
2633 | } | |
2634 | *d = '\0'; | |
2635 | ||
2636 | /* Windows doesn't allow redirection characters in file names, so we | |
2637 | can bail out early if they use them, or if there's no target file | |
2638 | name after the redirection symbol. */ | |
2639 | if (d[-1] == '>' || d[-1] == '<') | |
2640 | { | |
2641 | errno = ENOENT; | |
2642 | return 0; | |
2643 | } | |
2644 | if (redir_open (buf, inp, out, err) == 0) | |
2645 | return s - start; | |
2646 | return 0; | |
2647 | } | |
2648 | ||
2649 | /* Parse the command line for redirection specs and prepare the file | |
2650 | descriptors for the 3 standard streams accordingly. */ | |
2651 | static bool | |
2652 | redirect_inferior_handles (const char *cmd_orig, char *cmd, | |
2653 | int *inp, int *out, int *err) | |
2654 | { | |
2655 | const char *s = cmd_orig; | |
2656 | char *d = cmd; | |
2657 | int quote = 0; | |
2658 | bool retval = false; | |
2659 | ||
2660 | while (isspace (*s)) | |
2661 | *d++ = *s++; | |
2662 | ||
2663 | while (*s) | |
2664 | { | |
2665 | if (*s == '"') /* could also support '..' quoting here */ | |
2666 | { | |
2667 | if (!quote) | |
2668 | quote = *s; | |
2669 | else if (*s == quote) | |
2670 | quote = 0; | |
2671 | } | |
2672 | else if (*s == '\\') | |
2673 | { | |
2674 | if (s[1] == '"') /* escaped quote char */ | |
2675 | s++; | |
2676 | } | |
2677 | else if (!quote) | |
2678 | { | |
2679 | /* Process a single redirection candidate. */ | |
2680 | if (*s == '<' || *s == '>' | |
2681 | || ((*s == '1' || *s == '2') && s[1] == '>') | |
2682 | || (*s == '0' && s[1] == '<')) | |
2683 | { | |
2684 | int skip = redir_set_redirection (s, inp, out, err); | |
2685 | ||
2686 | if (skip <= 0) | |
2687 | return false; | |
2688 | retval = true; | |
2689 | s += skip; | |
2690 | } | |
2691 | } | |
2692 | if (*s) | |
2693 | *d++ = *s++; | |
2694 | } | |
2695 | *d = '\0'; | |
2696 | return retval; | |
2697 | } | |
2698 | #endif /* !__CYGWIN__ */ | |
2699 | ||
dc05df57 | 2700 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2701 | EXEC_FILE is the file to run. |
2702 | ALLARGS is a string containing the arguments to the program. | |
2703 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2704 | ||
f6ac5f3d PA |
2705 | void |
2706 | windows_nat_target::create_inferior (const char *exec_file, | |
2707 | const std::string &origallargs, | |
2708 | char **in_env, int from_tty) | |
24e60978 | 2709 | { |
b3c613f2 | 2710 | STARTUPINFO si; |
41b4aadc | 2711 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2712 | cygwin_buf_t real_path[__PMAX]; |
2713 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d092c5a2 | 2714 | cygwin_buf_t infcwd[__PMAX]; |
d0d0ab16 | 2715 | const char *sh; |
b3c613f2 CF |
2716 | cygwin_buf_t *toexec; |
2717 | cygwin_buf_t *cygallargs; | |
2718 | cygwin_buf_t *args; | |
b7ff339d CV |
2719 | char **old_env = NULL; |
2720 | PWCHAR w32_env; | |
d0d0ab16 | 2721 | size_t len; |
2becadee CF |
2722 | int tty; |
2723 | int ostdin, ostdout, ostderr; | |
8ba42bc5 | 2724 | #else /* !__CYGWIN__ */ |
b3c613f2 | 2725 | char shell[__PMAX]; /* Path to shell */ |
5430098f | 2726 | const char *toexec; |
8ba42bc5 EZ |
2727 | char *args, *allargs_copy; |
2728 | size_t args_len, allargs_len; | |
2729 | int fd_inp = -1, fd_out = -1, fd_err = -1; | |
2730 | HANDLE tty = INVALID_HANDLE_VALUE; | |
8ba42bc5 | 2731 | bool redirected = false; |
c93dbcba EZ |
2732 | char *w32env; |
2733 | char *temp; | |
2734 | size_t envlen; | |
2735 | int i; | |
2736 | size_t envsize; | |
2737 | char **env; | |
8ba42bc5 | 2738 | #endif /* !__CYGWIN__ */ |
096c92dd | 2739 | const char *allargs = origallargs.c_str (); |
d0d0ab16 CV |
2740 | PROCESS_INFORMATION pi; |
2741 | BOOL ret; | |
2742 | DWORD flags = 0; | |
3cb3b8df | 2743 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2744 | |
2745 | if (!exec_file) | |
8a3fe4f8 | 2746 | error (_("No executable specified, use `target exec'.")); |
24e60978 | 2747 | |
d092c5a2 SDJ |
2748 | const char *inferior_cwd = get_inferior_cwd (); |
2749 | std::string expanded_infcwd; | |
2750 | if (inferior_cwd != NULL) | |
2751 | { | |
2752 | expanded_infcwd = gdb_tilde_expand (inferior_cwd); | |
2753 | /* Mirror slashes on inferior's cwd. */ | |
2754 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), | |
2755 | '/', '\\'); | |
2756 | inferior_cwd = expanded_infcwd.c_str (); | |
2757 | } | |
2758 | ||
24e60978 SC |
2759 | memset (&si, 0, sizeof (si)); |
2760 | si.cb = sizeof (si); | |
2761 | ||
d0d0ab16 CV |
2762 | if (new_group) |
2763 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2764 | ||
2765 | if (new_console) | |
cd44747c | 2766 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2767 | |
10325bc5 | 2768 | #ifdef __CYGWIN__ |
349b409f | 2769 | if (!useshell) |
dfe7f3ac | 2770 | { |
d0d0ab16 CV |
2771 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2772 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2773 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2774 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2775 | toexec = real_path; |
b3c613f2 | 2776 | #ifdef __USEWIDE |
d0d0ab16 CV |
2777 | len = mbstowcs (NULL, allargs, 0) + 1; |
2778 | if (len == (size_t) -1) | |
2779 | error (_("Error starting executable: %d"), errno); | |
2780 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2781 | mbstowcs (cygallargs, allargs, len); | |
8ba42bc5 | 2782 | #else /* !__USEWIDE */ |
60c5c021 | 2783 | cygallargs = allargs; |
b3c613f2 | 2784 | #endif |
dfe7f3ac CF |
2785 | } |
2786 | else | |
2787 | { | |
974e6844 | 2788 | sh = get_shell (); |
b3c613f2 | 2789 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2790 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2791 | #ifdef __USEWIDE |
d0d0ab16 CV |
2792 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2793 | + mbstowcs (NULL, allargs, 0) + 2; | |
2794 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2795 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2796 | #else /* !__USEWIDE */ |
08850b56 PM |
2797 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2798 | + strlen (allargs) + 2); | |
2799 | cygallargs = (char *) alloca (len); | |
2800 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2801 | #endif /* __USEWIDE */ |
dfe7f3ac | 2802 | toexec = shell; |
d0d0ab16 | 2803 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2804 | } |
b3c613f2 | 2805 | |
d092c5a2 SDJ |
2806 | if (inferior_cwd != NULL |
2807 | && cygwin_conv_path (CCP_POSIX_TO_WIN_W, inferior_cwd, | |
2808 | infcwd, strlen (inferior_cwd)) < 0) | |
2809 | error (_("Error converting inferior cwd: %d"), errno); | |
2810 | ||
b3c613f2 CF |
2811 | #ifdef __USEWIDE |
2812 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2813 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2814 | wcscpy (args, toexec); |
2815 | wcscat (args, L" "); | |
2816 | wcscat (args, cygallargs); | |
8ba42bc5 | 2817 | #else /* !__USEWIDE */ |
b3c613f2 CF |
2818 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); |
2819 | strcpy (args, toexec); | |
2820 | strcat (args, " "); | |
2821 | strcat (args, cygallargs); | |
8ba42bc5 | 2822 | #endif /* !__USEWIDE */ |
b3c613f2 | 2823 | |
b7ff339d CV |
2824 | #ifdef CW_CVT_ENV_TO_WINENV |
2825 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2826 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2827 | if (w32_env != (PWCHAR) -1) | |
2828 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2829 | else | |
2830 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
8ba42bc5 | 2831 | #endif /* CW_CVT_ENV_TO_WINENV */ |
b7ff339d CV |
2832 | { |
2833 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2834 | clear_win32_environment (environ); | |
2835 | /* Prepare the environment vars for CreateProcess. */ | |
2836 | old_env = environ; | |
2837 | environ = in_env; | |
2838 | cygwin_internal (CW_SYNC_WINENV); | |
2839 | w32_env = NULL; | |
2840 | } | |
1750a5ef | 2841 | |
2becadee CF |
2842 | if (!inferior_io_terminal) |
2843 | tty = ostdin = ostdout = ostderr = -1; | |
2844 | else | |
2845 | { | |
2846 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2847 | if (tty < 0) | |
2848 | { | |
2849 | print_sys_errmsg (inferior_io_terminal, errno); | |
2850 | ostdin = ostdout = ostderr = -1; | |
2851 | } | |
2852 | else | |
2853 | { | |
2854 | ostdin = dup (0); | |
2855 | ostdout = dup (1); | |
2856 | ostderr = dup (2); | |
2857 | dup2 (tty, 0); | |
2858 | dup2 (tty, 1); | |
2859 | dup2 (tty, 2); | |
2860 | } | |
2861 | } | |
d0d0ab16 CV |
2862 | |
2863 | windows_init_thread_list (); | |
b3c613f2 CF |
2864 | ret = CreateProcess (0, |
2865 | args, /* command line */ | |
2866 | NULL, /* Security */ | |
2867 | NULL, /* thread */ | |
2868 | TRUE, /* inherit handles */ | |
2869 | flags, /* start flags */ | |
b7ff339d | 2870 | w32_env, /* environment */ |
d092c5a2 SDJ |
2871 | inferior_cwd != NULL ? infcwd : NULL, /* current |
2872 | directory */ | |
b3c613f2 CF |
2873 | &si, |
2874 | &pi); | |
b7ff339d CV |
2875 | if (w32_env) |
2876 | /* Just free the Win32 environment, if it could be created. */ | |
2877 | free (w32_env); | |
2878 | else | |
2879 | { | |
2880 | /* Reset all environment variables to avoid leftover on next run. */ | |
2881 | clear_win32_environment (in_env); | |
2882 | /* Restore normal GDB environment variables. */ | |
2883 | environ = old_env; | |
2884 | cygwin_internal (CW_SYNC_WINENV); | |
2885 | } | |
2886 | ||
d0d0ab16 CV |
2887 | if (tty >= 0) |
2888 | { | |
6af79d7b | 2889 | ::close (tty); |
d0d0ab16 CV |
2890 | dup2 (ostdin, 0); |
2891 | dup2 (ostdout, 1); | |
2892 | dup2 (ostderr, 2); | |
6af79d7b JT |
2893 | ::close (ostdin); |
2894 | ::close (ostdout); | |
2895 | ::close (ostderr); | |
d0d0ab16 | 2896 | } |
8ba42bc5 EZ |
2897 | #else /* !__CYGWIN__ */ |
2898 | allargs_len = strlen (allargs); | |
2899 | allargs_copy = strcpy ((char *) alloca (allargs_len + 1), allargs); | |
2900 | if (strpbrk (allargs_copy, "<>") != NULL) | |
2901 | { | |
2902 | int e = errno; | |
2903 | errno = 0; | |
2904 | redirected = | |
2905 | redirect_inferior_handles (allargs, allargs_copy, | |
2906 | &fd_inp, &fd_out, &fd_err); | |
2907 | if (errno) | |
6d91ce9a | 2908 | warning (_("Error in redirection: %s."), safe_strerror (errno)); |
8ba42bc5 EZ |
2909 | else |
2910 | errno = e; | |
2911 | allargs_len = strlen (allargs_copy); | |
2912 | } | |
2913 | /* If not all the standard streams are redirected by the command | |
2914 | line, use inferior_io_terminal for those which aren't. */ | |
2915 | if (inferior_io_terminal | |
2916 | && !(fd_inp >= 0 && fd_out >= 0 && fd_err >= 0)) | |
41b4aadc CF |
2917 | { |
2918 | SECURITY_ATTRIBUTES sa; | |
2919 | sa.nLength = sizeof(sa); | |
2920 | sa.lpSecurityDescriptor = 0; | |
2921 | sa.bInheritHandle = TRUE; | |
2922 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2923 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2924 | if (tty == INVALID_HANDLE_VALUE) | |
2925 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2926 | inferior_io_terminal, (unsigned) GetLastError ()); | |
8ba42bc5 EZ |
2927 | } |
2928 | if (redirected || tty != INVALID_HANDLE_VALUE) | |
2929 | { | |
2930 | if (fd_inp >= 0) | |
2931 | si.hStdInput = (HANDLE) _get_osfhandle (fd_inp); | |
2932 | else if (tty != INVALID_HANDLE_VALUE) | |
2933 | si.hStdInput = tty; | |
41b4aadc | 2934 | else |
8ba42bc5 EZ |
2935 | si.hStdInput = GetStdHandle (STD_INPUT_HANDLE); |
2936 | if (fd_out >= 0) | |
2937 | si.hStdOutput = (HANDLE) _get_osfhandle (fd_out); | |
2938 | else if (tty != INVALID_HANDLE_VALUE) | |
2939 | si.hStdOutput = tty; | |
2940 | else | |
2941 | si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE); | |
2942 | if (fd_err >= 0) | |
2943 | si.hStdError = (HANDLE) _get_osfhandle (fd_err); | |
2944 | else if (tty != INVALID_HANDLE_VALUE) | |
2945 | si.hStdError = tty; | |
2946 | else | |
2947 | si.hStdError = GetStdHandle (STD_ERROR_HANDLE); | |
2948 | si.dwFlags |= STARTF_USESTDHANDLES; | |
41b4aadc | 2949 | } |
2becadee | 2950 | |
8ba42bc5 EZ |
2951 | toexec = exec_file; |
2952 | /* Build the command line, a space-separated list of tokens where | |
2953 | the first token is the name of the module to be executed. | |
2954 | To avoid ambiguities introduced by spaces in the module name, | |
2955 | we quote it. */ | |
2956 | args_len = strlen (toexec) + 2 /* quotes */ + allargs_len + 2; | |
2957 | args = (char *) alloca (args_len); | |
2958 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs_copy); | |
2959 | ||
2960 | flags |= DEBUG_ONLY_THIS_PROCESS; | |
2961 | ||
c93dbcba EZ |
2962 | /* CreateProcess takes the environment list as a null terminated set of |
2963 | strings (i.e. two nulls terminate the list). */ | |
2964 | ||
2965 | /* Get total size for env strings. */ | |
2966 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2967 | envlen += strlen (in_env[i]) + 1; | |
2968 | ||
2969 | envsize = sizeof (in_env[0]) * (i + 1); | |
2970 | env = (char **) alloca (envsize); | |
2971 | memcpy (env, in_env, envsize); | |
2972 | /* Windows programs expect the environment block to be sorted. */ | |
2973 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2974 | ||
0ae1c716 | 2975 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
2976 | |
2977 | /* Copy env strings into new buffer. */ | |
2978 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2979 | { | |
2980 | strcpy (temp, env[i]); | |
2981 | temp += strlen (temp) + 1; | |
2982 | } | |
2983 | ||
2984 | /* Final nil string to terminate new env. */ | |
2985 | *temp = 0; | |
2986 | ||
dc05df57 | 2987 | windows_init_thread_list (); |
d0d0ab16 CV |
2988 | ret = CreateProcessA (0, |
2989 | args, /* command line */ | |
2990 | NULL, /* Security */ | |
2991 | NULL, /* thread */ | |
2992 | TRUE, /* inherit handles */ | |
2993 | flags, /* start flags */ | |
c93dbcba | 2994 | w32env, /* environment */ |
d092c5a2 | 2995 | inferior_cwd, /* current directory */ |
d0d0ab16 CV |
2996 | &si, |
2997 | &pi); | |
41b4aadc CF |
2998 | if (tty != INVALID_HANDLE_VALUE) |
2999 | CloseHandle (tty); | |
8ba42bc5 EZ |
3000 | if (fd_inp >= 0) |
3001 | _close (fd_inp); | |
3002 | if (fd_out >= 0) | |
3003 | _close (fd_out); | |
3004 | if (fd_err >= 0) | |
3005 | _close (fd_err); | |
3006 | #endif /* !__CYGWIN__ */ | |
2becadee | 3007 | |
24e60978 | 3008 | if (!ret) |
d50a0ce2 | 3009 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 3010 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 3011 | |
46f9f931 HD |
3012 | #ifdef __x86_64__ |
3013 | BOOL wow64; | |
3014 | if (IsWow64Process (pi.hProcess, &wow64)) | |
3015 | wow64_process = wow64; | |
3016 | #endif | |
3017 | ||
c1766e7d PM |
3018 | CloseHandle (pi.hThread); |
3019 | CloseHandle (pi.hProcess); | |
3020 | ||
dfe7f3ac CF |
3021 | if (useshell && shell[0] != '\0') |
3022 | saw_create = -1; | |
3023 | else | |
3024 | saw_create = 0; | |
3025 | ||
f6ac5f3d | 3026 | do_initial_windows_stuff (this, pi.dwProcessId, 0); |
d3a09475 | 3027 | |
17617f2d | 3028 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
3029 | } |
3030 | ||
f6ac5f3d PA |
3031 | void |
3032 | windows_nat_target::mourn_inferior () | |
24e60978 | 3033 | { |
17617f2d | 3034 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 3035 | x86_cleanup_dregs(); |
bf25528d CF |
3036 | if (open_process_used) |
3037 | { | |
3038 | CHECK (CloseHandle (current_process_handle)); | |
3039 | open_process_used = 0; | |
3040 | } | |
7928d571 | 3041 | siginfo_er.ExceptionCode = 0; |
f6ac5f3d | 3042 | inf_child_target::mourn_inferior (); |
24e60978 SC |
3043 | } |
3044 | ||
24e60978 | 3045 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 3046 | ^C on the controlling terminal. */ |
24e60978 | 3047 | |
f6ac5f3d PA |
3048 | void |
3049 | windows_nat_target::interrupt () | |
24e60978 | 3050 | { |
1ef980b9 | 3051 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 3052 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 3053 | registers_changed (); /* refresh register state */ |
24e60978 SC |
3054 | } |
3055 | ||
44f38867 PA |
3056 | /* Helper for windows_xfer_partial that handles memory transfers. |
3057 | Arguments are like target_xfer_partial. */ | |
3058 | ||
9b409511 | 3059 | static enum target_xfer_status |
44f38867 | 3060 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 3061 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 3062 | { |
5732a500 | 3063 | SIZE_T done = 0; |
44f38867 | 3064 | BOOL success; |
9e52adf9 | 3065 | DWORD lasterror = 0; |
44f38867 PA |
3066 | |
3067 | if (writebuf != NULL) | |
24e60978 | 3068 | { |
a2388568 | 3069 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 3070 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3071 | success = WriteProcessMemory (current_process_handle, |
3072 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
3073 | len, &done); | |
9e52adf9 | 3074 | if (!success) |
7126d5c8 | 3075 | lasterror = GetLastError (); |
2b008701 | 3076 | FlushInstructionCache (current_process_handle, |
2c647436 | 3077 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
3078 | } |
3079 | else | |
3080 | { | |
a2388568 | 3081 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 3082 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3083 | success = ReadProcessMemory (current_process_handle, |
3084 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
3085 | len, &done); | |
9e52adf9 | 3086 | if (!success) |
7126d5c8 | 3087 | lasterror = GetLastError (); |
24e60978 | 3088 | } |
9b409511 | 3089 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 3090 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 3091 | return TARGET_XFER_OK; |
9e52adf9 | 3092 | else |
9b409511 | 3093 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
3094 | } |
3095 | ||
f6ac5f3d PA |
3096 | void |
3097 | windows_nat_target::kill () | |
24e60978 | 3098 | { |
3cee93ac CF |
3099 | CHECK (TerminateProcess (current_process_handle, 0)); |
3100 | ||
b5edcb45 ILT |
3101 | for (;;) |
3102 | { | |
17617f2d | 3103 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 3104 | break; |
0a4afda3 | 3105 | if (!wait_for_debug_event (¤t_event, INFINITE)) |
b5edcb45 | 3106 | break; |
3cee93ac | 3107 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
3108 | break; |
3109 | } | |
3110 | ||
9eee20eb | 3111 | target_mourn_inferior (inferior_ptid); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
3112 | } |
3113 | ||
f6ac5f3d PA |
3114 | void |
3115 | windows_nat_target::close () | |
24e60978 | 3116 | { |
dc05df57 | 3117 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
e99b03dc | 3118 | inferior_ptid.pid ())); |
24e60978 | 3119 | } |
1ef980b9 | 3120 | |
581e13c1 | 3121 | /* Convert pid to printable format. */ |
a068643d | 3122 | std::string |
f6ac5f3d | 3123 | windows_nat_target::pid_to_str (ptid_t ptid) |
24e60978 | 3124 | { |
7c7411bc TT |
3125 | if (ptid.lwp () != 0) |
3126 | return string_printf ("Thread %d.0x%lx", ptid.pid (), ptid.lwp ()); | |
2dc38344 PA |
3127 | |
3128 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
3129 | } |
3130 | ||
9b409511 | 3131 | static enum target_xfer_status |
dc05df57 | 3132 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
3133 | enum target_object object, const char *annex, |
3134 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
3135 | ULONGEST offset, ULONGEST len, | |
3136 | ULONGEST *xfered_len) | |
3cb8e7f6 | 3137 | { |
de1b3c3d PA |
3138 | struct obstack obstack; |
3139 | const char *buf; | |
3140 | LONGEST len_avail; | |
3cb8e7f6 | 3141 | struct so_list *so; |
3cb8e7f6 | 3142 | |
de1b3c3d | 3143 | if (writebuf) |
2ed4b548 | 3144 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 3145 | |
de1b3c3d PA |
3146 | obstack_init (&obstack); |
3147 | obstack_grow_str (&obstack, "<library-list>\n"); | |
3148 | for (so = solib_start.next; so; so = so->next) | |
d0e449a1 SM |
3149 | { |
3150 | lm_info_windows *li = (lm_info_windows *) so->lm_info; | |
3151 | ||
3152 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) | |
3153 | (uintptr_t) li->load_addr, | |
c162ed3e | 3154 | &li->text_offset, |
d0e449a1 SM |
3155 | target_gdbarch (), &obstack); |
3156 | } | |
de1b3c3d | 3157 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 3158 | |
0ae1c716 | 3159 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
3160 | len_avail = strlen (buf); |
3161 | if (offset >= len_avail) | |
49dc7f4b PM |
3162 | len= 0; |
3163 | else | |
3164 | { | |
3165 | if (len > len_avail - offset) | |
3166 | len = len_avail - offset; | |
3167 | memcpy (readbuf, buf + offset, len); | |
3168 | } | |
3cb8e7f6 | 3169 | |
de1b3c3d | 3170 | obstack_free (&obstack, NULL); |
9b409511 | 3171 | *xfered_len = (ULONGEST) len; |
0837c976 | 3172 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
3173 | } |
3174 | ||
7928d571 HD |
3175 | /* Helper for windows_nat_target::xfer_partial that handles signal info. */ |
3176 | ||
3177 | static enum target_xfer_status | |
3178 | windows_xfer_siginfo (gdb_byte *readbuf, ULONGEST offset, ULONGEST len, | |
3179 | ULONGEST *xfered_len) | |
3180 | { | |
46f9f931 HD |
3181 | char *buf = (char *) &siginfo_er; |
3182 | size_t bufsize = sizeof (siginfo_er); | |
3183 | ||
3184 | #ifdef __x86_64__ | |
3185 | EXCEPTION_RECORD32 er32; | |
3186 | if (wow64_process) | |
3187 | { | |
3188 | buf = (char *) &er32; | |
3189 | bufsize = sizeof (er32); | |
3190 | ||
3191 | er32.ExceptionCode = siginfo_er.ExceptionCode; | |
3192 | er32.ExceptionFlags = siginfo_er.ExceptionFlags; | |
3193 | er32.ExceptionRecord = (uintptr_t) siginfo_er.ExceptionRecord; | |
3194 | er32.ExceptionAddress = (uintptr_t) siginfo_er.ExceptionAddress; | |
3195 | er32.NumberParameters = siginfo_er.NumberParameters; | |
3196 | int i; | |
3197 | for (i = 0; i < EXCEPTION_MAXIMUM_PARAMETERS; i++) | |
3198 | er32.ExceptionInformation[i] = siginfo_er.ExceptionInformation[i]; | |
3199 | } | |
3200 | #endif | |
3201 | ||
7928d571 HD |
3202 | if (siginfo_er.ExceptionCode == 0) |
3203 | return TARGET_XFER_E_IO; | |
3204 | ||
3205 | if (readbuf == nullptr) | |
3206 | return TARGET_XFER_E_IO; | |
3207 | ||
46f9f931 | 3208 | if (offset > bufsize) |
7928d571 HD |
3209 | return TARGET_XFER_E_IO; |
3210 | ||
46f9f931 HD |
3211 | if (offset + len > bufsize) |
3212 | len = bufsize - offset; | |
7928d571 | 3213 | |
46f9f931 | 3214 | memcpy (readbuf, buf + offset, len); |
7928d571 HD |
3215 | *xfered_len = len; |
3216 | ||
3217 | return TARGET_XFER_OK; | |
3218 | } | |
3219 | ||
f6ac5f3d PA |
3220 | enum target_xfer_status |
3221 | windows_nat_target::xfer_partial (enum target_object object, | |
3222 | const char *annex, gdb_byte *readbuf, | |
2f4f025f TT |
3223 | const gdb_byte *writebuf, ULONGEST offset, |
3224 | ULONGEST len, ULONGEST *xfered_len) | |
3cb8e7f6 | 3225 | { |
de1b3c3d | 3226 | switch (object) |
3cb8e7f6 | 3227 | { |
de1b3c3d | 3228 | case TARGET_OBJECT_MEMORY: |
9b409511 | 3229 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
3230 | |
3231 | case TARGET_OBJECT_LIBRARIES: | |
f6ac5f3d | 3232 | return windows_xfer_shared_libraries (this, object, annex, readbuf, |
9b409511 | 3233 | writebuf, offset, len, xfered_len); |
3929abe9 | 3234 | |
7928d571 HD |
3235 | case TARGET_OBJECT_SIGNAL_INFO: |
3236 | return windows_xfer_siginfo (readbuf, offset, len, xfered_len); | |
3237 | ||
de1b3c3d | 3238 | default: |
2f4f025f | 3239 | if (beneath () == NULL) |
178d6a63 JB |
3240 | { |
3241 | /* This can happen when requesting the transfer of unsupported | |
3242 | objects before a program has been started (and therefore | |
3243 | with the current_target having no target beneath). */ | |
3244 | return TARGET_XFER_E_IO; | |
3245 | } | |
2f4f025f TT |
3246 | return beneath ()->xfer_partial (object, annex, |
3247 | readbuf, writebuf, offset, len, | |
3248 | xfered_len); | |
3929abe9 | 3249 | } |
02c5aecd CF |
3250 | } |
3251 | ||
711e434b PM |
3252 | /* Provide thread local base, i.e. Thread Information Block address. |
3253 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
3254 | ||
57810aa7 | 3255 | bool |
f6ac5f3d | 3256 | windows_nat_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) |
711e434b | 3257 | { |
876d1cd7 | 3258 | windows_thread_info *th; |
711e434b | 3259 | |
28688adf | 3260 | th = thread_rec (ptid, DONT_INVALIDATE_CONTEXT); |
711e434b | 3261 | if (th == NULL) |
57810aa7 | 3262 | return false; |
711e434b PM |
3263 | |
3264 | if (addr != NULL) | |
3265 | *addr = th->thread_local_base; | |
3266 | ||
57810aa7 | 3267 | return true; |
711e434b PM |
3268 | } |
3269 | ||
f6ac5f3d PA |
3270 | ptid_t |
3271 | windows_nat_target::get_ada_task_ptid (long lwp, long thread) | |
1e2f1c5c | 3272 | { |
7c7411bc | 3273 | return ptid_t (inferior_ptid.pid (), lwp, 0); |
1e2f1c5c JB |
3274 | } |
3275 | ||
24cdb46e РИ |
3276 | /* Implementation of the to_thread_name method. */ |
3277 | ||
f6ac5f3d PA |
3278 | const char * |
3279 | windows_nat_target::thread_name (struct thread_info *thr) | |
24cdb46e | 3280 | { |
28688adf | 3281 | return thread_rec (thr->ptid, DONT_INVALIDATE_CONTEXT)->name.get (); |
24cdb46e РИ |
3282 | } |
3283 | ||
24e60978 | 3284 | |
6c265988 | 3285 | void _initialize_windows_nat (); |
24e60978 | 3286 | void |
6c265988 | 3287 | _initialize_windows_nat () |
24e60978 | 3288 | { |
df7e5265 GB |
3289 | x86_dr_low.set_control = cygwin_set_dr7; |
3290 | x86_dr_low.set_addr = cygwin_set_dr; | |
3291 | x86_dr_low.get_addr = cygwin_get_dr; | |
3292 | x86_dr_low.get_status = cygwin_get_dr6; | |
3293 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 3294 | |
df7e5265 GB |
3295 | /* x86_dr_low.debug_register_length field is set by |
3296 | calling x86_set_debug_register_length function | |
51a9c8c5 | 3297 | in processor windows specific native file. */ |
fa58ee11 | 3298 | |
d9f719f1 | 3299 | add_inf_child_target (&the_windows_nat_target); |
1ef980b9 | 3300 | |
d0d0ab16 CV |
3301 | #ifdef __CYGWIN__ |
3302 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
3303 | #endif | |
3304 | ||
463888ab РИ |
3305 | add_com ("signal-event", class_run, signal_event_command, _("\ |
3306 | Signal a crashed process with event ID, to allow its debugging.\n\ | |
3307 | This command is needed in support of setting up GDB as JIT debugger on \ | |
3308 | MS-Windows. The command should be invoked from the GDB command line using \ | |
3309 | the '-ex' command-line option. The ID of the event that blocks the \ | |
3310 | crashed process will be supplied by the Windows JIT debugging mechanism.")); | |
3311 | ||
10325bc5 | 3312 | #ifdef __CYGWIN__ |
5bf193a2 AC |
3313 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
3314 | Set use of shell to start subprocess."), _("\ | |
3315 | Show use of shell to start subprocess."), NULL, | |
3316 | NULL, | |
3317 | NULL, /* FIXME: i18n: */ | |
3318 | &setlist, &showlist); | |
3319 | ||
581e13c1 MS |
3320 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
3321 | &cygwin_exceptions, _("\ | |
09280ddf CF |
3322 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
3323 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
3324 | NULL, | |
3325 | NULL, /* FIXME: i18n: */ | |
3326 | &setlist, &showlist); | |
10325bc5 | 3327 | #endif |
09280ddf | 3328 | |
5bf193a2 AC |
3329 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
3330 | Set creation of new console when creating child process."), _("\ | |
3331 | Show creation of new console when creating child process."), NULL, | |
3332 | NULL, | |
3333 | NULL, /* FIXME: i18n: */ | |
3334 | &setlist, &showlist); | |
3335 | ||
3336 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
3337 | Set creation of new group when creating child process."), _("\ | |
3338 | Show creation of new group when creating child process."), NULL, | |
3339 | NULL, | |
3340 | NULL, /* FIXME: i18n: */ | |
3341 | &setlist, &showlist); | |
3342 | ||
3343 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
3344 | Set whether to display execution in child process."), _("\ | |
3345 | Show whether to display execution in child process."), NULL, | |
3346 | NULL, | |
3347 | NULL, /* FIXME: i18n: */ | |
3348 | &setlist, &showlist); | |
3349 | ||
3350 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
3351 | Set whether to display kernel events in child process."), _("\ | |
3352 | Show whether to display kernel events in child process."), NULL, | |
3353 | NULL, | |
3354 | NULL, /* FIXME: i18n: */ | |
3355 | &setlist, &showlist); | |
3356 | ||
3357 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
3358 | Set whether to display memory accesses in child process."), _("\ | |
3359 | Show whether to display memory accesses in child process."), NULL, | |
3360 | NULL, | |
3361 | NULL, /* FIXME: i18n: */ | |
3362 | &setlist, &showlist); | |
3363 | ||
3364 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
3365 | &debug_exceptions, _("\ | |
3366 | Set whether to display kernel exceptions in child process."), _("\ | |
3367 | Show whether to display kernel exceptions in child process."), NULL, | |
3368 | NULL, | |
3369 | NULL, /* FIXME: i18n: */ | |
3370 | &setlist, &showlist); | |
1ef980b9 | 3371 | |
711e434b | 3372 | init_w32_command_list (); |
c1748f97 PM |
3373 | |
3374 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 3375 | _("Display selectors infos."), |
c1748f97 | 3376 | &info_w32_cmdlist); |
24e60978 | 3377 | } |
3cee93ac | 3378 | |
fa4ba8da PM |
3379 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
3380 | ||
3381 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
3382 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 3383 | actually set up when windows_continue is called. */ |
9bb9e8ad | 3384 | static void |
fa4ba8da PM |
3385 | cygwin_set_dr (int i, CORE_ADDR addr) |
3386 | { | |
3387 | if (i < 0 || i > 3) | |
3388 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3389 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 3390 | dr[i] = addr; |
fa4ba8da PM |
3391 | debug_registers_changed = 1; |
3392 | debug_registers_used = 1; | |
3393 | } | |
3394 | ||
3395 | /* Pass the value VAL to the inferior in the DR7 debug control | |
3396 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 3397 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
3398 | static void |
3399 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 3400 | { |
9bb9e8ad | 3401 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
3402 | debug_registers_changed = 1; |
3403 | debug_registers_used = 1; | |
3404 | } | |
3405 | ||
7b50312a PA |
3406 | /* Get the value of debug register I from the inferior. */ |
3407 | ||
3408 | static CORE_ADDR | |
3409 | cygwin_get_dr (int i) | |
3410 | { | |
3411 | return dr[i]; | |
3412 | } | |
3413 | ||
fa4ba8da PM |
3414 | /* Get the value of the DR6 debug status register from the inferior. |
3415 | Here we just return the value stored in dr[6] | |
3416 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 3417 | static unsigned long |
fa4ba8da PM |
3418 | cygwin_get_dr6 (void) |
3419 | { | |
9bb9e8ad | 3420 | return (unsigned long) dr[6]; |
fa4ba8da PM |
3421 | } |
3422 | ||
7b50312a PA |
3423 | /* Get the value of the DR7 debug status register from the inferior. |
3424 | Here we just return the value stored in dr[7] by the last call to | |
3425 | thread_rec for current_event.dwThreadId id. */ | |
3426 | ||
3427 | static unsigned long | |
3428 | cygwin_get_dr7 (void) | |
3429 | { | |
3430 | return (unsigned long) dr[7]; | |
3431 | } | |
3432 | ||
2dc38344 | 3433 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 3434 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 3435 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
f6ac5f3d | 3436 | |
57810aa7 | 3437 | bool |
f6ac5f3d | 3438 | windows_nat_target::thread_alive (ptid_t ptid) |
3cee93ac | 3439 | { |
7c7411bc | 3440 | gdb_assert (ptid.lwp () != 0); |
39f77062 | 3441 | |
28688adf | 3442 | return (WaitForSingleObject (thread_rec (ptid, DONT_INVALIDATE_CONTEXT)->h, 0) |
8e61ebec | 3443 | != WAIT_OBJECT_0); |
3cee93ac CF |
3444 | } |
3445 | ||
6c265988 | 3446 | void _initialize_check_for_gdb_ini (); |
2a3d5645 | 3447 | void |
6c265988 | 3448 | _initialize_check_for_gdb_ini () |
2a3d5645 CF |
3449 | { |
3450 | char *homedir; | |
3451 | if (inhibit_gdbinit) | |
3452 | return; | |
3453 | ||
3454 | homedir = getenv ("HOME"); | |
3455 | if (homedir) | |
3456 | { | |
3457 | char *p; | |
3458 | char *oldini = (char *) alloca (strlen (homedir) + | |
1270fac6 | 3459 | sizeof ("gdb.ini") + 1); |
2a3d5645 CF |
3460 | strcpy (oldini, homedir); |
3461 | p = strchr (oldini, '\0'); | |
0ba1096a | 3462 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
3463 | *p++ = '/'; |
3464 | strcpy (p, "gdb.ini"); | |
3465 | if (access (oldini, 0) == 0) | |
3466 | { | |
3467 | int len = strlen (oldini); | |
1270fac6 | 3468 | char *newini = (char *) alloca (len + 2); |
08850b56 | 3469 | |
1270fac6 | 3470 | xsnprintf (newini, len + 2, "%.*s.gdbinit", |
08850b56 | 3471 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 3472 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
3473 | } |
3474 | } | |
3475 | } | |
33605d39 | 3476 | |
2b008701 | 3477 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 3478 | these functions could not be found. */ |
2b008701 CF |
3479 | static BOOL WINAPI |
3480 | bad_DebugActiveProcessStop (DWORD w) | |
3481 | { | |
3482 | return FALSE; | |
3483 | } | |
3484 | static BOOL WINAPI | |
3485 | bad_DebugBreakProcess (HANDLE w) | |
3486 | { | |
3487 | return FALSE; | |
3488 | } | |
3489 | static BOOL WINAPI | |
3490 | bad_DebugSetProcessKillOnExit (BOOL w) | |
3491 | { | |
3492 | return FALSE; | |
3493 | } | |
3494 | static BOOL WINAPI | |
3495 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
3496 | { | |
3497 | return FALSE; | |
3498 | } | |
b3c613f2 CF |
3499 | |
3500 | #ifdef __USEWIDE | |
2b008701 | 3501 | static DWORD WINAPI |
b3c613f2 | 3502 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
3503 | { |
3504 | return 0; | |
3505 | } | |
d0d0ab16 CV |
3506 | #else |
3507 | static DWORD WINAPI | |
b3c613f2 | 3508 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
3509 | { |
3510 | return 0; | |
3511 | } | |
3512 | #endif | |
b3c613f2 | 3513 | |
2b008701 CF |
3514 | static BOOL WINAPI |
3515 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
3516 | { | |
3517 | return FALSE; | |
3518 | } | |
3519 | ||
418c6cb3 CF |
3520 | static BOOL WINAPI |
3521 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
3522 | { | |
3523 | return FALSE; | |
3524 | } | |
3525 | ||
cd44747c PM |
3526 | static BOOL WINAPI |
3527 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
3528 | { | |
3529 | f->nFont = 0; | |
3530 | return 1; | |
3531 | } | |
3532 | static COORD WINAPI | |
3533 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
3534 | { | |
3535 | COORD size; | |
3536 | size.X = 8; | |
3537 | size.Y = 12; | |
3538 | return size; | |
3539 | } | |
3540 | ||
2b008701 | 3541 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 3542 | of Windows. */ |
d603d4b3 | 3543 | |
6c265988 | 3544 | void _initialize_loadable (); |
33605d39 | 3545 | void |
6c265988 | 3546 | _initialize_loadable () |
33605d39 | 3547 | { |
2b008701 CF |
3548 | HMODULE hm = NULL; |
3549 | ||
43499ea3 PA |
3550 | #define GPA(m, func) \ |
3551 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
3552 | ||
2b008701 CF |
3553 | hm = LoadLibrary ("kernel32.dll"); |
3554 | if (hm) | |
33605d39 | 3555 | { |
43499ea3 PA |
3556 | GPA (hm, DebugActiveProcessStop); |
3557 | GPA (hm, DebugBreakProcess); | |
3558 | GPA (hm, DebugSetProcessKillOnExit); | |
3559 | GPA (hm, GetConsoleFontSize); | |
3560 | GPA (hm, DebugActiveProcessStop); | |
3561 | GPA (hm, GetCurrentConsoleFont); | |
46f9f931 HD |
3562 | #ifdef __x86_64__ |
3563 | GPA (hm, Wow64SuspendThread); | |
3564 | GPA (hm, Wow64GetThreadContext); | |
3565 | GPA (hm, Wow64SetThreadContext); | |
3566 | GPA (hm, Wow64GetThreadSelectorEntry); | |
3567 | #endif | |
2b008701 | 3568 | } |
33605d39 | 3569 | |
2b008701 | 3570 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 3571 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
3572 | if (!DebugBreakProcess) |
3573 | DebugBreakProcess = bad_DebugBreakProcess; | |
3574 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 3575 | { |
b3c613f2 CF |
3576 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
3577 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 3578 | } |
cd44747c PM |
3579 | if (!GetConsoleFontSize) |
3580 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
3581 | if (!GetCurrentConsoleFont) | |
3582 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 3583 | |
2b008701 | 3584 | /* Load optional functions used for retrieving filename information |
581e13c1 | 3585 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
3586 | hm = LoadLibrary ("psapi.dll"); |
3587 | if (hm) | |
3588 | { | |
43499ea3 | 3589 | GPA (hm, EnumProcessModules); |
46f9f931 HD |
3590 | #ifdef __x86_64__ |
3591 | GPA (hm, EnumProcessModulesEx); | |
3592 | #endif | |
43499ea3 | 3593 | GPA (hm, GetModuleInformation); |
aec47d1d JB |
3594 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
3595 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
3596 | } |
3597 | ||
b3c613f2 | 3598 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
3599 | { |
3600 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 3601 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
3602 | EnumProcessModules = bad_EnumProcessModules; |
3603 | GetModuleInformation = bad_GetModuleInformation; | |
3604 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
3605 | /* This will probably fail on Windows 9x/Me. Let the user know |
3606 | that we're missing some functionality. */ | |
3607 | warning(_("\ | |
3608 | cannot automatically find executable file or library to read symbols.\n\ | |
3609 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
3610 | } |
3611 | ||
3612 | hm = LoadLibrary ("advapi32.dll"); | |
3613 | if (hm) | |
3614 | { | |
43499ea3 PA |
3615 | GPA (hm, OpenProcessToken); |
3616 | GPA (hm, LookupPrivilegeValueA); | |
3617 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 3618 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
3619 | else is needed. */ |
3620 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
3621 | || !AdjustTokenPrivileges) | |
b3c613f2 | 3622 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 3623 | } |
43499ea3 PA |
3624 | |
3625 | #undef GPA | |
33605d39 | 3626 | } |