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" |
0363df3d | 74 | #include "gdbsupport/symbol.h" |
de1b3c3d | 75 | |
4834dad0 TT |
76 | using namespace windows_nat; |
77 | ||
418c6cb3 | 78 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
79 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
80 | #define DebugBreakProcess dyn_DebugBreakProcess | |
81 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
82 | #define EnumProcessModules dyn_EnumProcessModules | |
46f9f931 | 83 | #define EnumProcessModulesEx dyn_EnumProcessModulesEx |
2b008701 | 84 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
85 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
86 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
87 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
88 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
46f9f931 HD |
89 | #define Wow64SuspendThread dyn_Wow64SuspendThread |
90 | #define Wow64GetThreadContext dyn_Wow64GetThreadContext | |
91 | #define Wow64SetThreadContext dyn_Wow64SetThreadContext | |
92 | #define Wow64GetThreadSelectorEntry dyn_Wow64GetThreadSelectorEntry | |
2b008701 | 93 | |
43499ea3 PA |
94 | typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL, |
95 | PTOKEN_PRIVILEGES, | |
96 | DWORD, PTOKEN_PRIVILEGES, | |
97 | PDWORD); | |
98 | static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges; | |
99 | ||
100 | typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD); | |
101 | static DebugActiveProcessStop_ftype *DebugActiveProcessStop; | |
102 | ||
103 | typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE); | |
104 | static DebugBreakProcess_ftype *DebugBreakProcess; | |
105 | ||
106 | typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL); | |
107 | static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit; | |
108 | ||
109 | typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD, | |
110 | LPDWORD); | |
111 | static EnumProcessModules_ftype *EnumProcessModules; | |
112 | ||
46f9f931 HD |
113 | #ifdef __x86_64__ |
114 | typedef BOOL WINAPI (EnumProcessModulesEx_ftype) (HANDLE, HMODULE *, DWORD, | |
115 | LPDWORD, DWORD); | |
116 | static EnumProcessModulesEx_ftype *EnumProcessModulesEx; | |
117 | #endif | |
118 | ||
43499ea3 PA |
119 | typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE, |
120 | LPMODULEINFO, DWORD); | |
121 | static GetModuleInformation_ftype *GetModuleInformation; | |
122 | ||
123 | typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID); | |
124 | static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA; | |
125 | ||
126 | typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE); | |
127 | static OpenProcessToken_ftype *OpenProcessToken; | |
128 | ||
129 | typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL, | |
130 | CONSOLE_FONT_INFO *); | |
131 | static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont; | |
132 | ||
133 | typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD); | |
134 | static GetConsoleFontSize_ftype *GetConsoleFontSize; | |
2b008701 | 135 | |
46f9f931 HD |
136 | #ifdef __x86_64__ |
137 | typedef DWORD WINAPI (Wow64SuspendThread_ftype) (HANDLE); | |
138 | static Wow64SuspendThread_ftype *Wow64SuspendThread; | |
139 | ||
140 | typedef BOOL WINAPI (Wow64GetThreadContext_ftype) (HANDLE, PWOW64_CONTEXT); | |
141 | static Wow64GetThreadContext_ftype *Wow64GetThreadContext; | |
142 | ||
143 | typedef BOOL WINAPI (Wow64SetThreadContext_ftype) (HANDLE, | |
144 | const WOW64_CONTEXT *); | |
145 | static Wow64SetThreadContext_ftype *Wow64SetThreadContext; | |
146 | ||
147 | typedef BOOL WINAPI (Wow64GetThreadSelectorEntry_ftype) (HANDLE, DWORD, | |
148 | PLDT_ENTRY); | |
149 | static Wow64GetThreadSelectorEntry_ftype *Wow64GetThreadSelectorEntry; | |
150 | #endif | |
151 | ||
b3c613f2 CF |
152 | #undef STARTUPINFO |
153 | #undef CreateProcess | |
154 | #undef GetModuleFileNameEx | |
155 | ||
156 | #ifndef __CYGWIN__ | |
157 | # define __PMAX (MAX_PATH + 1) | |
43499ea3 PA |
158 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD); |
159 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
160 | # define STARTUPINFO STARTUPINFOA |
161 | # define CreateProcess CreateProcessA | |
162 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
163 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
164 | #else | |
165 | # define __PMAX PATH_MAX | |
581e13c1 | 166 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
167 | static CORE_ADDR cygwin_load_start; |
168 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
169 | # define __USEWIDE |
170 | typedef wchar_t cygwin_buf_t; | |
43499ea3 PA |
171 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, |
172 | LPWSTR, DWORD); | |
173 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
174 | # define STARTUPINFO STARTUPINFOW |
175 | # define CreateProcess CreateProcessW | |
176 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
177 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 178 | #endif |
a244bdca | 179 | |
581e13c1 MS |
180 | static int have_saved_context; /* True if we've saved context from a |
181 | cygwin signal. */ | |
15766370 | 182 | #ifdef __CYGWIN__ |
85102364 | 183 | static CONTEXT saved_context; /* Contains the saved context from a |
581e13c1 | 184 | cygwin signal. */ |
15766370 | 185 | #endif |
a244bdca | 186 | |
0714f9bf SS |
187 | /* If we're not using the old Cygwin header file set, define the |
188 | following which never should have been in the generic Win32 API | |
581e13c1 | 189 | headers in the first place since they were our own invention... */ |
0714f9bf | 190 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 191 | enum |
8e860359 CF |
192 | { |
193 | FLAG_TRACE_BIT = 0x100, | |
8e860359 | 194 | }; |
0714f9bf SS |
195 | #endif |
196 | ||
5851ab76 JB |
197 | #ifndef CONTEXT_EXTENDED_REGISTERS |
198 | /* This macro is only defined on ia32. It only makes sense on this target, | |
199 | so define it as zero if not already defined. */ | |
200 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
201 | #endif | |
202 | ||
f0666312 JT |
203 | #define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \ |
204 | | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \ | |
205 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 206 | |
41b4aadc | 207 | static uintptr_t dr[8]; |
87a45c96 CF |
208 | static int debug_registers_changed; |
209 | static int debug_registers_used; | |
16d905e2 CF |
210 | |
211 | static int windows_initialization_done; | |
6537bb24 | 212 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 213 | |
3cee93ac | 214 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 215 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
216 | #ifndef _CYGWIN_SIGNAL_STRING |
217 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
218 | #endif | |
3cee93ac | 219 | |
29fe111d | 220 | #define CHECK(x) check (x, __FILE__,__LINE__) |
ce127a96 TT |
221 | #define DEBUG_EXEC(x) if (debug_exec) debug_printf x |
222 | #define DEBUG_EVENTS(x) if (debug_events) debug_printf x | |
223 | #define DEBUG_MEM(x) if (debug_memory) debug_printf x | |
224 | #define DEBUG_EXCEPT(x) if (debug_exceptions) debug_printf x | |
24e60978 | 225 | |
9bb9e8ad PM |
226 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
227 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 228 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 229 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 230 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 231 | |
93366324 | 232 | static std::vector<windows_thread_info *> thread_list; |
24e60978 | 233 | |
581e13c1 | 234 | /* Counts of things. */ |
dfe7f3ac | 235 | static int saw_create; |
bf25528d | 236 | static int open_process_used = 0; |
46f9f931 HD |
237 | #ifdef __x86_64__ |
238 | static bool wow64_process = false; | |
0363df3d | 239 | static void *wow64_dbgbreak; |
46f9f931 | 240 | #endif |
24e60978 | 241 | |
581e13c1 | 242 | /* User options. */ |
491144b5 | 243 | static bool new_console = false; |
10325bc5 | 244 | #ifdef __CYGWIN__ |
491144b5 | 245 | static bool cygwin_exceptions = false; |
10325bc5 | 246 | #endif |
491144b5 CB |
247 | static bool new_group = true; |
248 | static bool debug_exec = false; /* show execution */ | |
249 | static bool debug_events = false; /* show events from kernel */ | |
250 | static bool debug_memory = false; /* show target memory accesses */ | |
251 | static bool debug_exceptions = false; /* show target exceptions */ | |
252 | static bool useshell = false; /* use shell for subprocesses */ | |
dfe7f3ac | 253 | |
7e63b4e4 | 254 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 255 | in the windows exception context vector. |
24e60978 | 256 | |
3cee93ac | 257 | It also contains the bit mask needed to load the register in question. |
24e60978 | 258 | |
7e63b4e4 JB |
259 | The contents of this table can only be computed by the units |
260 | that provide CPU-specific support for Windows native debugging. | |
261 | These units should set the table by calling | |
dc05df57 | 262 | windows_set_context_register_offsets. |
7e63b4e4 | 263 | |
24e60978 SC |
264 | One day we could read a reg, we could inspect the context we |
265 | already have loaded, if it doesn't have the bit set that we need, | |
266 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 267 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
268 | write a register, first we have to ensure that the context contains |
269 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 270 | out bit. */ |
24e60978 | 271 | |
7e63b4e4 | 272 | static const int *mappings; |
d3a09475 | 273 | |
d40dc7a8 JB |
274 | /* The function to use in order to determine whether a register is |
275 | a segment register or not. */ | |
276 | static segment_register_p_ftype *segment_register_p; | |
277 | ||
73c13fe6 TT |
278 | /* See windows_nat_target::resume to understand why this is commented |
279 | out. */ | |
280 | #if 0 | |
24e60978 | 281 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 282 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
283 | |
284 | struct xlate_exception | |
285 | { | |
73c13fe6 | 286 | DWORD them; |
2ea28649 | 287 | enum gdb_signal us; |
24e60978 SC |
288 | }; |
289 | ||
73c13fe6 | 290 | static const struct xlate_exception xlate[] = |
24e60978 | 291 | { |
a493e3e2 PA |
292 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
293 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
294 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
295 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
296 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
73c13fe6 TT |
297 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE} |
298 | }; | |
24e60978 | 299 | |
73c13fe6 | 300 | #endif /* 0 */ |
f6ac5f3d PA |
301 | |
302 | struct windows_nat_target final : public x86_nat_target<inf_child_target> | |
303 | { | |
304 | void close () override; | |
305 | ||
306 | void attach (const char *, int) override; | |
307 | ||
308 | bool attach_no_wait () override | |
309 | { return true; } | |
310 | ||
311 | void detach (inferior *, int) override; | |
312 | ||
313 | void resume (ptid_t, int , enum gdb_signal) override; | |
314 | ||
315 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
316 | ||
317 | void fetch_registers (struct regcache *, int) override; | |
318 | void store_registers (struct regcache *, int) override; | |
319 | ||
0a4afda3 TT |
320 | bool stopped_by_sw_breakpoint () override |
321 | { | |
50838d1b PA |
322 | windows_thread_info *th |
323 | = thread_rec (inferior_ptid, DONT_INVALIDATE_CONTEXT); | |
324 | return th->stopped_at_software_breakpoint; | |
0a4afda3 TT |
325 | } |
326 | ||
327 | bool supports_stopped_by_sw_breakpoint () override | |
328 | { | |
329 | return true; | |
330 | } | |
331 | ||
f6ac5f3d PA |
332 | enum target_xfer_status xfer_partial (enum target_object object, |
333 | const char *annex, | |
334 | gdb_byte *readbuf, | |
335 | const gdb_byte *writebuf, | |
336 | ULONGEST offset, ULONGEST len, | |
337 | ULONGEST *xfered_len) override; | |
338 | ||
339 | void files_info () override; | |
340 | ||
341 | void kill () override; | |
342 | ||
343 | void create_inferior (const char *, const std::string &, | |
344 | char **, int) override; | |
345 | ||
346 | void mourn_inferior () override; | |
347 | ||
57810aa7 | 348 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d | 349 | |
a068643d | 350 | std::string pid_to_str (ptid_t) override; |
f6ac5f3d PA |
351 | |
352 | void interrupt () override; | |
353 | ||
354 | char *pid_to_exec_file (int pid) override; | |
355 | ||
356 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
357 | ||
57810aa7 | 358 | bool get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; |
f6ac5f3d PA |
359 | |
360 | const char *thread_name (struct thread_info *) override; | |
5b6d1e4f PA |
361 | |
362 | int get_windows_debug_event (int pid, struct target_waitstatus *ourstatus); | |
50838d1b PA |
363 | |
364 | void do_initial_windows_stuff (DWORD pid, bool attaching); | |
f6ac5f3d PA |
365 | }; |
366 | ||
367 | static windows_nat_target the_windows_nat_target; | |
368 | ||
7e63b4e4 JB |
369 | /* Set the MAPPINGS static global to OFFSETS. |
370 | See the description of MAPPINGS for more details. */ | |
371 | ||
46f9f931 | 372 | static void |
dc05df57 | 373 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
374 | { |
375 | mappings = offsets; | |
376 | } | |
377 | ||
46f9f931 HD |
378 | /* Set the function that should be used by this module to determine |
379 | whether a given register is a segment register or not. */ | |
d40dc7a8 | 380 | |
46f9f931 | 381 | static void |
d40dc7a8 JB |
382 | windows_set_segment_register_p (segment_register_p_ftype *fun) |
383 | { | |
384 | segment_register_p = fun; | |
385 | } | |
386 | ||
fa4ba8da PM |
387 | static void |
388 | check (BOOL ok, const char *file, int line) | |
389 | { | |
390 | if (!ok) | |
d50a0ce2 CV |
391 | printf_filtered ("error return %s:%d was %u\n", file, line, |
392 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
393 | } |
394 | ||
28688adf | 395 | /* See nat/windows-nat.h. */ |
8e61ebec | 396 | |
28688adf TT |
397 | windows_thread_info * |
398 | windows_nat::thread_rec (ptid_t ptid, thread_disposition_type disposition) | |
24e60978 | 399 | { |
93366324 | 400 | for (windows_thread_info *th : thread_list) |
28688adf | 401 | if (th->tid == ptid.lwp ()) |
3cee93ac | 402 | { |
8e61ebec | 403 | if (!th->suspended) |
3cee93ac | 404 | { |
8e61ebec TT |
405 | switch (disposition) |
406 | { | |
407 | case DONT_INVALIDATE_CONTEXT: | |
408 | /* Nothing. */ | |
409 | break; | |
410 | case INVALIDATE_CONTEXT: | |
28688adf | 411 | if (ptid.lwp () != current_event.dwThreadId) |
8e61ebec TT |
412 | th->suspend (); |
413 | th->reload_context = true; | |
414 | break; | |
415 | case DONT_SUSPEND: | |
416 | th->reload_context = true; | |
417 | th->suspended = -1; | |
418 | break; | |
419 | } | |
3cee93ac CF |
420 | } |
421 | return th; | |
422 | } | |
423 | ||
424 | return NULL; | |
425 | } | |
426 | ||
c559d709 JB |
427 | /* Add a thread to the thread list. |
428 | ||
429 | PTID is the ptid of the thread to be added. | |
430 | H is its Windows handle. | |
431 | TLB is its thread local base. | |
432 | MAIN_THREAD_P should be true if the thread to be added is | |
433 | the main thread, false otherwise. */ | |
434 | ||
876d1cd7 | 435 | static windows_thread_info * |
c559d709 | 436 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb, bool main_thread_p) |
3cee93ac | 437 | { |
876d1cd7 | 438 | windows_thread_info *th; |
2dc38344 | 439 | |
7c7411bc | 440 | gdb_assert (ptid.lwp () != 0); |
2dc38344 | 441 | |
28688adf | 442 | if ((th = thread_rec (ptid, DONT_INVALIDATE_CONTEXT))) |
3cee93ac CF |
443 | return th; |
444 | ||
e9534bd2 | 445 | CORE_ADDR base = (CORE_ADDR) (uintptr_t) tlb; |
46f9f931 HD |
446 | #ifdef __x86_64__ |
447 | /* For WOW64 processes, this is actually the pointer to the 64bit TIB, | |
448 | and the 32bit TIB is exactly 2 pages after it. */ | |
449 | if (wow64_process) | |
e9534bd2 | 450 | base += 0x2000; |
46f9f931 | 451 | #endif |
28688adf | 452 | th = new windows_thread_info (ptid.lwp (), h, base); |
93366324 | 453 | thread_list.push_back (th); |
c559d709 JB |
454 | |
455 | /* Add this new thread to the list of threads. | |
456 | ||
457 | To be consistent with what's done on other platforms, we add | |
458 | the main thread silently (in reality, this thread is really | |
459 | more of a process to the user than a thread). */ | |
460 | if (main_thread_p) | |
5b6d1e4f | 461 | add_thread_silent (&the_windows_nat_target, ptid); |
c559d709 | 462 | else |
5b6d1e4f | 463 | add_thread (&the_windows_nat_target, ptid); |
c559d709 | 464 | |
2dc38344 | 465 | /* Set the debug registers for the new thread if they are used. */ |
fa4ba8da PM |
466 | if (debug_registers_used) |
467 | { | |
46f9f931 HD |
468 | #ifdef __x86_64__ |
469 | if (wow64_process) | |
470 | { | |
471 | /* Only change the value of the debug registers. */ | |
472 | th->wow64_context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
473 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
474 | th->wow64_context.Dr0 = dr[0]; | |
475 | th->wow64_context.Dr1 = dr[1]; | |
476 | th->wow64_context.Dr2 = dr[2]; | |
477 | th->wow64_context.Dr3 = dr[3]; | |
478 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
479 | th->wow64_context.Dr7 = dr[7]; | |
480 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
481 | th->wow64_context.ContextFlags = 0; | |
482 | } | |
483 | else | |
484 | #endif | |
485 | { | |
486 | /* Only change the value of the debug registers. */ | |
487 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
488 | CHECK (GetThreadContext (th->h, &th->context)); | |
489 | th->context.Dr0 = dr[0]; | |
490 | th->context.Dr1 = dr[1]; | |
491 | th->context.Dr2 = dr[2]; | |
492 | th->context.Dr3 = dr[3]; | |
493 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
494 | th->context.Dr7 = dr[7]; | |
495 | CHECK (SetThreadContext (th->h, &th->context)); | |
496 | th->context.ContextFlags = 0; | |
497 | } | |
fa4ba8da | 498 | } |
3cee93ac | 499 | return th; |
24e60978 SC |
500 | } |
501 | ||
26c4b26f | 502 | /* Clear out any old thread list and reinitialize it to a |
581e13c1 | 503 | pristine state. */ |
24e60978 | 504 | static void |
dc05df57 | 505 | windows_init_thread_list (void) |
24e60978 | 506 | { |
dc05df57 | 507 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac | 508 | init_thread_list (); |
93366324 TT |
509 | |
510 | for (windows_thread_info *here : thread_list) | |
e9534bd2 | 511 | delete here; |
93366324 TT |
512 | |
513 | thread_list.clear (); | |
3cee93ac CF |
514 | } |
515 | ||
c559d709 JB |
516 | /* Delete a thread from the list of threads. |
517 | ||
518 | PTID is the ptid of the thread to be deleted. | |
519 | EXIT_CODE is the thread's exit code. | |
520 | MAIN_THREAD_P should be true if the thread to be deleted is | |
521 | the main thread, false otherwise. */ | |
522 | ||
3cee93ac | 523 | static void |
c559d709 | 524 | windows_delete_thread (ptid_t ptid, DWORD exit_code, bool main_thread_p) |
3cee93ac | 525 | { |
2dc38344 PA |
526 | DWORD id; |
527 | ||
7c7411bc | 528 | gdb_assert (ptid.lwp () != 0); |
2dc38344 | 529 | |
7c7411bc | 530 | id = ptid.lwp (); |
3cee93ac | 531 | |
c559d709 JB |
532 | /* Emit a notification about the thread being deleted. |
533 | ||
534 | Note that no notification was printed when the main thread | |
535 | was created, and thus, unless in verbose mode, we should be | |
85102364 | 536 | symmetrical, and avoid that notification for the main thread |
c559d709 JB |
537 | here as well. */ |
538 | ||
3cee93ac | 539 | if (info_verbose) |
a068643d | 540 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid).c_str ()); |
c559d709 | 541 | else if (print_thread_events && !main_thread_p) |
e0ea48a0 | 542 | printf_unfiltered (_("[%s exited with code %u]\n"), |
a068643d TT |
543 | target_pid_to_str (ptid).c_str (), |
544 | (unsigned) exit_code); | |
c559d709 | 545 | |
5b6d1e4f | 546 | delete_thread (find_thread_ptid (&the_windows_nat_target, ptid)); |
3cee93ac | 547 | |
93366324 TT |
548 | auto iter = std::find_if (thread_list.begin (), thread_list.end (), |
549 | [=] (windows_thread_info *th) | |
550 | { | |
55a1e039 | 551 | return th->tid == id; |
93366324 | 552 | }); |
3cee93ac | 553 | |
93366324 | 554 | if (iter != thread_list.end ()) |
24e60978 | 555 | { |
e9534bd2 | 556 | delete *iter; |
93366324 | 557 | thread_list.erase (iter); |
24e60978 SC |
558 | } |
559 | } | |
560 | ||
9a325b7b JB |
561 | /* Fetches register number R from the given windows_thread_info, |
562 | and supplies its value to the given regcache. | |
563 | ||
564 | This function assumes that R is non-negative. A failed assertion | |
565 | is raised if that is not true. | |
566 | ||
567 | This function assumes that TH->RELOAD_CONTEXT is not set, meaning | |
568 | that the windows_thread_info has an up-to-date context. A failed | |
569 | assertion is raised if that assumption is violated. */ | |
570 | ||
3cee93ac | 571 | static void |
9a325b7b JB |
572 | windows_fetch_one_register (struct regcache *regcache, |
573 | windows_thread_info *th, int r) | |
24e60978 | 574 | { |
9a325b7b JB |
575 | gdb_assert (r >= 0); |
576 | gdb_assert (!th->reload_context); | |
577 | ||
46f9f931 HD |
578 | char *context_ptr = (char *) &th->context; |
579 | #ifdef __x86_64__ | |
580 | if (wow64_process) | |
581 | context_ptr = (char *) &th->wow64_context; | |
582 | #endif | |
583 | ||
584 | char *context_offset = context_ptr + mappings[r]; | |
ac7936df | 585 | struct gdbarch *gdbarch = regcache->arch (); |
20a6ec49 | 586 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
9a325b7b | 587 | |
0a4afda3 TT |
588 | gdb_assert (!gdbarch_read_pc_p (gdbarch)); |
589 | gdb_assert (gdbarch_pc_regnum (gdbarch) >= 0); | |
590 | gdb_assert (!gdbarch_write_pc_p (gdbarch)); | |
591 | ||
9a325b7b JB |
592 | if (r == I387_FISEG_REGNUM (tdep)) |
593 | { | |
594 | long l = *((long *) context_offset) & 0xffff; | |
595 | regcache->raw_supply (r, (char *) &l); | |
596 | } | |
597 | else if (r == I387_FOP_REGNUM (tdep)) | |
598 | { | |
599 | long l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); | |
600 | regcache->raw_supply (r, (char *) &l); | |
601 | } | |
602 | else if (segment_register_p (r)) | |
603 | { | |
604 | /* GDB treats segment registers as 32bit registers, but they are | |
605 | in fact only 16 bits long. Make sure we do not read extra | |
606 | bits from our source buffer. */ | |
607 | long l = *((long *) context_offset) & 0xffff; | |
608 | regcache->raw_supply (r, (char *) &l); | |
609 | } | |
610 | else | |
0a4afda3 TT |
611 | { |
612 | if (th->stopped_at_software_breakpoint | |
7be2bb4f | 613 | && !th->pc_adjusted |
0a4afda3 TT |
614 | && r == gdbarch_pc_regnum (gdbarch)) |
615 | { | |
616 | int size = register_size (gdbarch, r); | |
617 | if (size == 4) | |
618 | { | |
619 | uint32_t value; | |
620 | memcpy (&value, context_offset, size); | |
621 | value -= gdbarch_decr_pc_after_break (gdbarch); | |
622 | memcpy (context_offset, &value, size); | |
623 | } | |
624 | else | |
625 | { | |
626 | gdb_assert (size == 8); | |
627 | uint64_t value; | |
628 | memcpy (&value, context_offset, size); | |
629 | value -= gdbarch_decr_pc_after_break (gdbarch); | |
630 | memcpy (context_offset, &value, size); | |
631 | } | |
7be2bb4f TT |
632 | /* Make sure we only rewrite the PC a single time. */ |
633 | th->pc_adjusted = true; | |
0a4afda3 TT |
634 | } |
635 | regcache->raw_supply (r, context_offset); | |
636 | } | |
9a325b7b JB |
637 | } |
638 | ||
639 | void | |
640 | windows_nat_target::fetch_registers (struct regcache *regcache, int r) | |
641 | { | |
28688adf | 642 | windows_thread_info *th = thread_rec (regcache->ptid (), INVALIDATE_CONTEXT); |
9a325b7b JB |
643 | |
644 | /* Check if TH exists. Windows sometimes uses a non-existent | |
645 | thread id in its events. */ | |
646 | if (th == NULL) | |
647 | return; | |
6c7de422 | 648 | |
3de88e9a | 649 | if (th->reload_context) |
3ade5333 | 650 | { |
f20c58f5 | 651 | #ifdef __CYGWIN__ |
a244bdca CF |
652 | if (have_saved_context) |
653 | { | |
581e13c1 MS |
654 | /* Lie about where the program actually is stopped since |
655 | cygwin has informed us that we should consider the signal | |
656 | to have occurred at another location which is stored in | |
657 | "saved_context. */ | |
3de88e9a | 658 | memcpy (&th->context, &saved_context, |
581e13c1 | 659 | __COPY_CONTEXT_SIZE); |
a244bdca CF |
660 | have_saved_context = 0; |
661 | } | |
662 | else | |
46f9f931 HD |
663 | #endif |
664 | #ifdef __x86_64__ | |
665 | if (wow64_process) | |
666 | { | |
667 | th->wow64_context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
668 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
669 | /* Copy dr values from that thread. | |
670 | But only if there were not modified since last stop. | |
671 | PR gdb/2388 */ | |
672 | if (!debug_registers_changed) | |
673 | { | |
674 | dr[0] = th->wow64_context.Dr0; | |
675 | dr[1] = th->wow64_context.Dr1; | |
676 | dr[2] = th->wow64_context.Dr2; | |
677 | dr[3] = th->wow64_context.Dr3; | |
678 | dr[6] = th->wow64_context.Dr6; | |
679 | dr[7] = th->wow64_context.Dr7; | |
680 | } | |
681 | } | |
682 | else | |
cb832706 | 683 | #endif |
a244bdca | 684 | { |
a244bdca | 685 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 686 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 687 | /* Copy dr values from that thread. |
581e13c1 MS |
688 | But only if there were not modified since last stop. |
689 | PR gdb/2388 */ | |
88616312 PM |
690 | if (!debug_registers_changed) |
691 | { | |
692 | dr[0] = th->context.Dr0; | |
693 | dr[1] = th->context.Dr1; | |
694 | dr[2] = th->context.Dr2; | |
695 | dr[3] = th->context.Dr3; | |
696 | dr[6] = th->context.Dr6; | |
697 | dr[7] = th->context.Dr7; | |
698 | } | |
a244bdca | 699 | } |
62fe396b | 700 | th->reload_context = false; |
3ade5333 CF |
701 | } |
702 | ||
9a325b7b JB |
703 | if (r < 0) |
704 | for (r = 0; r < gdbarch_num_regs (regcache->arch()); r++) | |
705 | windows_fetch_one_register (regcache, th, r); | |
3cee93ac | 706 | else |
9a325b7b | 707 | windows_fetch_one_register (regcache, th, r); |
3cee93ac CF |
708 | } |
709 | ||
9a325b7b JB |
710 | /* Collect the register number R from the given regcache, and store |
711 | its value into the corresponding area of the given thread's context. | |
3de88e9a | 712 | |
9a325b7b JB |
713 | This function assumes that R is non-negative. A failed assertion |
714 | assertion is raised if that is not true. */ | |
3cee93ac CF |
715 | |
716 | static void | |
9a325b7b JB |
717 | windows_store_one_register (const struct regcache *regcache, |
718 | windows_thread_info *th, int r) | |
3cee93ac | 719 | { |
9a325b7b JB |
720 | gdb_assert (r >= 0); |
721 | ||
46f9f931 HD |
722 | char *context_ptr = (char *) &th->context; |
723 | #ifdef __x86_64__ | |
724 | if (wow64_process) | |
725 | context_ptr = (char *) &th->wow64_context; | |
726 | #endif | |
727 | ||
728 | regcache->raw_collect (r, context_ptr + mappings[r]); | |
24e60978 SC |
729 | } |
730 | ||
3de88e9a SM |
731 | /* Store a new register value into the context of the thread tied to |
732 | REGCACHE. */ | |
f6ac5f3d PA |
733 | |
734 | void | |
735 | windows_nat_target::store_registers (struct regcache *regcache, int r) | |
3cee93ac | 736 | { |
28688adf | 737 | windows_thread_info *th = thread_rec (regcache->ptid (), INVALIDATE_CONTEXT); |
3de88e9a SM |
738 | |
739 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 740 | thread id in its events. */ |
9a325b7b JB |
741 | if (th == NULL) |
742 | return; | |
743 | ||
744 | if (r < 0) | |
745 | for (r = 0; r < gdbarch_num_regs (regcache->arch ()); r++) | |
746 | windows_store_one_register (regcache, th, r); | |
747 | else | |
748 | windows_store_one_register (regcache, th, r); | |
3cee93ac | 749 | } |
24e60978 | 750 | |
581e13c1 | 751 | /* Maintain a linked list of "so" information. */ |
d0e449a1 | 752 | struct lm_info_windows : public lm_info_base |
02e423b9 | 753 | { |
f8fdb78e | 754 | LPVOID load_addr = 0; |
c162ed3e | 755 | CORE_ADDR text_offset = 0; |
3ee6f623 CF |
756 | }; |
757 | ||
758 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 759 | |
de1b3c3d | 760 | static struct so_list * |
dc05df57 | 761 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 762 | { |
3ee6f623 | 763 | struct so_list *so; |
d0d0ab16 CV |
764 | char *p; |
765 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
766 | char buf[__PMAX]; |
767 | char cwd[__PMAX]; | |
3f8ad85b CF |
768 | WIN32_FIND_DATA w32_fd; |
769 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 770 | |
6badb179 CF |
771 | if (h == INVALID_HANDLE_VALUE) |
772 | strcpy (buf, name); | |
773 | else | |
3f8ad85b | 774 | { |
c914e0cc CF |
775 | FindClose (h); |
776 | strcpy (buf, name); | |
777 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
778 | { | |
779 | p = strrchr (buf, '\\'); | |
780 | if (p) | |
781 | p[1] = '\0'; | |
782 | SetCurrentDirectory (buf); | |
783 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
784 | SetCurrentDirectory (cwd); | |
785 | } | |
3f8ad85b | 786 | } |
3ee6f623 CF |
787 | if (strcasecmp (buf, "ntdll.dll") == 0) |
788 | { | |
789 | GetSystemDirectory (buf, sizeof (buf)); | |
790 | strcat (buf, "\\ntdll.dll"); | |
791 | } | |
d0d0ab16 | 792 | #else |
b3c613f2 | 793 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 794 | |
b3c613f2 | 795 | buf[0] = 0; |
d0d0ab16 CV |
796 | if (access (name, F_OK) != 0) |
797 | { | |
798 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 799 | #ifdef __USEWIDE |
d0d0ab16 CV |
800 | { |
801 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
802 | wcscat (buf, L"\\ntdll.dll"); | |
803 | } | |
b3c613f2 CF |
804 | #else |
805 | { | |
806 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
807 | strcat (buf, "\\ntdll.dll"); | |
808 | } | |
809 | #endif | |
d0d0ab16 CV |
810 | } |
811 | #endif | |
41bf6aca | 812 | so = XCNEW (struct so_list); |
f8fdb78e | 813 | lm_info_windows *li = new lm_info_windows; |
d0e449a1 SM |
814 | so->lm_info = li; |
815 | li->load_addr = load_addr; | |
de1b3c3d | 816 | strcpy (so->so_original_name, name); |
10325bc5 PA |
817 | #ifndef __CYGWIN__ |
818 | strcpy (so->so_name, buf); | |
819 | #else | |
d0d0ab16 CV |
820 | if (buf[0]) |
821 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
822 | SO_NAME_MAX_PATH_SIZE); | |
823 | else | |
824 | { | |
60c5c021 | 825 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
826 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
827 | { | |
828 | strcpy (so->so_name, rname); | |
829 | free (rname); | |
830 | } | |
831 | else | |
a0e9b532 JT |
832 | { |
833 | warning (_("dll path for \"%s\" too long or inaccessible"), name); | |
834 | strcpy (so->so_name, so->so_original_name); | |
835 | } | |
d0d0ab16 | 836 | } |
de1b3c3d PA |
837 | /* Record cygwin1.dll .text start/end. */ |
838 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
839 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
840 | { | |
de1b3c3d | 841 | asection *text = NULL; |
8e860359 | 842 | |
ad80db5b | 843 | gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386")); |
a244bdca | 844 | |
192b62ce | 845 | if (abfd == NULL) |
de1b3c3d PA |
846 | return so; |
847 | ||
192b62ce TT |
848 | if (bfd_check_format (abfd.get (), bfd_object)) |
849 | text = bfd_get_section_by_name (abfd.get (), ".text"); | |
de1b3c3d PA |
850 | |
851 | if (!text) | |
192b62ce | 852 | return so; |
de1b3c3d | 853 | |
7a9dd1b2 | 854 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 855 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
856 | file header and the section alignment. */ |
857 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
858 | load_addr + 0x1000); | |
fd361982 | 859 | cygwin_load_end = cygwin_load_start + bfd_section_size (text); |
de1b3c3d | 860 | } |
10325bc5 | 861 | #endif |
de1b3c3d PA |
862 | |
863 | return so; | |
8e860359 CF |
864 | } |
865 | ||
a816ba18 | 866 | /* See nat/windows-nat.h. */ |
1cd9feab | 867 | |
a816ba18 TT |
868 | void |
869 | windows_nat::handle_load_dll () | |
24e60978 | 870 | { |
3a4b77d8 | 871 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
9d8679cc | 872 | const char *dll_name; |
24e60978 | 873 | |
94481b8c JB |
874 | /* Try getting the DLL name via the lpImageName field of the event. |
875 | Note that Microsoft documents this fields as strictly optional, | |
876 | in the sense that it might be NULL. And the first DLL event in | |
877 | particular is explicitly documented as "likely not pass[ed]" | |
878 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
879 | dll_name = get_image_name (current_process_handle, |
880 | event->lpImageName, event->fUnicode); | |
3cee93ac | 881 | if (!dll_name) |
bf469271 | 882 | return; |
3cee93ac | 883 | |
dc05df57 | 884 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 885 | solib_end = solib_end->next; |
450005e7 | 886 | |
d0e449a1 SM |
887 | lm_info_windows *li = (lm_info_windows *) solib_end->lm_info; |
888 | ||
a74ce742 | 889 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
d0e449a1 | 890 | host_address_to_string (li->load_addr))); |
450005e7 CF |
891 | } |
892 | ||
3ee6f623 | 893 | static void |
dc05df57 | 894 | windows_free_so (struct so_list *so) |
3ee6f623 | 895 | { |
f8fdb78e SM |
896 | lm_info_windows *li = (lm_info_windows *) so->lm_info; |
897 | ||
898 | delete li; | |
de1b3c3d | 899 | xfree (so); |
3cb8e7f6 CF |
900 | } |
901 | ||
a816ba18 | 902 | /* See nat/windows-nat.h. */ |
3be75f87 | 903 | |
a816ba18 TT |
904 | void |
905 | windows_nat::handle_unload_dll () | |
d3ff4a77 | 906 | { |
d3653bf6 | 907 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 908 | struct so_list *so; |
d3ff4a77 CF |
909 | |
910 | for (so = &solib_start; so->next != NULL; so = so->next) | |
d0e449a1 SM |
911 | { |
912 | lm_info_windows *li_next = (lm_info_windows *) so->next->lm_info; | |
a25cd31f | 913 | |
d0e449a1 SM |
914 | if (li_next->load_addr == lpBaseOfDll) |
915 | { | |
916 | struct so_list *sodel = so->next; | |
7488902c | 917 | |
d0e449a1 SM |
918 | so->next = sodel->next; |
919 | if (!so->next) | |
920 | solib_end = so; | |
921 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); | |
922 | ||
923 | windows_free_so (sodel); | |
bf469271 | 924 | return; |
d0e449a1 SM |
925 | } |
926 | } | |
3929abe9 | 927 | |
ecc13e53 JB |
928 | /* We did not find any DLL that was previously loaded at this address, |
929 | so register a complaint. We do not report an error, because we have | |
930 | observed that this may be happening under some circumstances. For | |
931 | instance, running 32bit applications on x64 Windows causes us to receive | |
932 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
933 | events are apparently caused by the WOW layer, the interface between | |
934 | 32bit and 64bit worlds). */ | |
b98664d3 | 935 | complaint (_("dll starting at %s not found."), |
ecc13e53 | 936 | host_address_to_string (lpBaseOfDll)); |
bf469271 PA |
937 | } |
938 | ||
939 | /* Call FUNC wrapped in a TRY/CATCH that swallows all GDB | |
940 | exceptions. */ | |
d3ff4a77 | 941 | |
bf469271 PA |
942 | static void |
943 | catch_errors (void (*func) ()) | |
944 | { | |
a70b8144 | 945 | try |
bf469271 PA |
946 | { |
947 | func (); | |
948 | } | |
230d2906 | 949 | catch (const gdb_exception &ex) |
bf469271 PA |
950 | { |
951 | exception_print (gdb_stderr, ex); | |
952 | } | |
d3ff4a77 CF |
953 | } |
954 | ||
581e13c1 | 955 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 956 | static void |
dc05df57 | 957 | windows_clear_solib (void) |
450005e7 | 958 | { |
25057eb0 HD |
959 | struct so_list *so; |
960 | ||
961 | for (so = solib_start.next; so; so = solib_start.next) | |
962 | { | |
963 | solib_start.next = so->next; | |
964 | windows_free_so (so); | |
965 | } | |
966 | ||
450005e7 | 967 | solib_end = &solib_start; |
450005e7 | 968 | } |
295732ea | 969 | |
463888ab | 970 | static void |
0b39b52e | 971 | signal_event_command (const char *args, int from_tty) |
463888ab РИ |
972 | { |
973 | uintptr_t event_id = 0; | |
974 | char *endargs = NULL; | |
975 | ||
976 | if (args == NULL) | |
977 | error (_("signal-event requires an argument (integer event id)")); | |
978 | ||
979 | event_id = strtoumax (args, &endargs, 10); | |
980 | ||
981 | if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || | |
982 | ((HANDLE) event_id == INVALID_HANDLE_VALUE)) | |
983 | error (_("Failed to convert `%s' to event id"), args); | |
984 | ||
985 | SetEvent ((HANDLE) event_id); | |
986 | CloseHandle ((HANDLE) event_id); | |
987 | } | |
988 | ||
d41b524f TT |
989 | /* See nat/windows-nat.h. */ |
990 | ||
991 | int | |
992 | windows_nat::handle_output_debug_string (struct target_waitstatus *ourstatus) | |
3cee93ac | 993 | { |
a244bdca | 994 | int retval = 0; |
3cee93ac | 995 | |
66920317 TT |
996 | gdb::unique_xmalloc_ptr<char> s |
997 | = (target_read_string | |
998 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, | |
999 | 1024)); | |
1000 | if (s == nullptr || !*(s.get ())) | |
a244bdca | 1001 | /* nothing to do */; |
e83e4e24 | 1002 | else if (!startswith (s.get (), _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 1003 | { |
10325bc5 | 1004 | #ifdef __CYGWIN__ |
e83e4e24 | 1005 | if (!startswith (s.get (), "cYg")) |
10325bc5 | 1006 | #endif |
040ea00b | 1007 | { |
e83e4e24 | 1008 | char *p = strchr (s.get (), '\0'); |
040ea00b | 1009 | |
e83e4e24 | 1010 | if (p > s.get () && *--p == '\n') |
040ea00b | 1011 | *p = '\0'; |
e83e4e24 | 1012 | warning (("%s"), s.get ()); |
040ea00b | 1013 | } |
3cee93ac | 1014 | } |
f20c58f5 | 1015 | #ifdef __CYGWIN__ |
d3a09475 | 1016 | else |
3cee93ac | 1017 | { |
581e13c1 MS |
1018 | /* Got a cygwin signal marker. A cygwin signal is followed by |
1019 | the signal number itself and then optionally followed by the | |
1020 | thread id and address to saved context within the DLL. If | |
1021 | these are supplied, then the given thread is assumed to have | |
1022 | issued the signal and the context from the thread is assumed | |
1023 | to be stored at the given address in the inferior. Tell gdb | |
1024 | to treat this like a real signal. */ | |
3cee93ac | 1025 | char *p; |
e83e4e24 | 1026 | int sig = strtol (s.get () + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0ae534d2 | 1027 | gdb_signal gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 1028 | |
0714f9bf SS |
1029 | ourstatus->value.sig = gotasig; |
1030 | if (gotasig) | |
a244bdca CF |
1031 | { |
1032 | LPCVOID x; | |
2c15ef43 | 1033 | SIZE_T n; |
c62fa0e2 | 1034 | |
a244bdca CF |
1035 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
1036 | retval = strtoul (p, &p, 0); | |
1037 | if (!retval) | |
ab4ee614 | 1038 | retval = current_event.dwThreadId; |
40653b35 | 1039 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 1040 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
1041 | &saved_context, |
1042 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
1043 | && n == __COPY_CONTEXT_SIZE) |
1044 | have_saved_context = 1; | |
a244bdca | 1045 | } |
3cee93ac | 1046 | } |
cb832706 | 1047 | #endif |
3cee93ac | 1048 | |
a244bdca | 1049 | return retval; |
3cee93ac | 1050 | } |
24e60978 | 1051 | |
c1748f97 PM |
1052 | static int |
1053 | display_selector (HANDLE thread, DWORD sel) | |
1054 | { | |
1055 | LDT_ENTRY info; | |
46f9f931 HD |
1056 | BOOL ret; |
1057 | #ifdef __x86_64__ | |
1058 | if (wow64_process) | |
1059 | ret = Wow64GetThreadSelectorEntry (thread, sel, &info); | |
1060 | else | |
1061 | #endif | |
1062 | ret = GetThreadSelectorEntry (thread, sel, &info); | |
1063 | if (ret) | |
c1748f97 PM |
1064 | { |
1065 | int base, limit; | |
d50a0ce2 | 1066 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 1067 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
1068 | { |
1069 | puts_filtered ("Segment not present\n"); | |
1070 | return 0; | |
1071 | } | |
c1748f97 PM |
1072 | base = (info.HighWord.Bits.BaseHi << 24) + |
1073 | (info.HighWord.Bits.BaseMid << 16) | |
1074 | + info.BaseLow; | |
1075 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
1076 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 1077 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
1078 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
1079 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 1080 | puts_filtered(" 32-bit "); |
c1748f97 | 1081 | else |
baa93fa6 | 1082 | puts_filtered(" 16-bit "); |
c1748f97 PM |
1083 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1084 | { | |
1085 | case 0: | |
baa93fa6 CF |
1086 | puts_filtered ("Data (Read-Only, Exp-up"); |
1087 | break; | |
c1748f97 | 1088 | case 1: |
baa93fa6 CF |
1089 | puts_filtered ("Data (Read/Write, Exp-up"); |
1090 | break; | |
c1748f97 | 1091 | case 2: |
baa93fa6 CF |
1092 | puts_filtered ("Unused segment ("); |
1093 | break; | |
c1748f97 | 1094 | case 3: |
baa93fa6 CF |
1095 | puts_filtered ("Data (Read/Write, Exp-down"); |
1096 | break; | |
c1748f97 | 1097 | case 4: |
baa93fa6 CF |
1098 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1099 | break; | |
c1748f97 | 1100 | case 5: |
baa93fa6 | 1101 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1102 | break; |
1103 | case 6: | |
baa93fa6 | 1104 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1105 | break; |
1106 | case 7: | |
baa93fa6 | 1107 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1108 | break; |
1109 | default: | |
e432ccf1 JT |
1110 | printf_filtered ("Unknown type 0x%lx", |
1111 | (unsigned long) info.HighWord.Bits.Type); | |
c1748f97 PM |
1112 | } |
1113 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1114 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1115 | puts_filtered (")\n"); |
1116 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1117 | puts_filtered("System selector "); | |
e432ccf1 JT |
1118 | printf_filtered ("Priviledge level = %ld. ", |
1119 | (unsigned long) info.HighWord.Bits.Dpl); | |
c1748f97 | 1120 | if (info.HighWord.Bits.Granularity) |
baa93fa6 | 1121 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1122 | else |
1123 | puts_filtered ("Byte granular.\n"); | |
1124 | return 1; | |
1125 | } | |
1126 | else | |
1127 | { | |
5572ce1f PM |
1128 | DWORD err = GetLastError (); |
1129 | if (err == ERROR_NOT_SUPPORTED) | |
1130 | printf_filtered ("Function not supported\n"); | |
1131 | else | |
d50a0ce2 | 1132 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1133 | return 0; |
1134 | } | |
1135 | } | |
1136 | ||
1137 | static void | |
5fed81ff | 1138 | display_selectors (const char * args, int from_tty) |
c1748f97 | 1139 | { |
50838d1b | 1140 | if (inferior_ptid == null_ptid) |
c1748f97 PM |
1141 | { |
1142 | puts_filtered ("Impossible to display selectors now.\n"); | |
1143 | return; | |
1144 | } | |
50838d1b PA |
1145 | |
1146 | windows_thread_info *current_windows_thread | |
1147 | = thread_rec (inferior_ptid, DONT_INVALIDATE_CONTEXT); | |
1148 | ||
c1748f97 PM |
1149 | if (!args) |
1150 | { | |
46f9f931 HD |
1151 | #ifdef __x86_64__ |
1152 | if (wow64_process) | |
1153 | { | |
1154 | puts_filtered ("Selector $cs\n"); | |
3c76026d TT |
1155 | display_selector (current_windows_thread->h, |
1156 | current_windows_thread->wow64_context.SegCs); | |
46f9f931 | 1157 | puts_filtered ("Selector $ds\n"); |
3c76026d TT |
1158 | display_selector (current_windows_thread->h, |
1159 | current_windows_thread->wow64_context.SegDs); | |
46f9f931 | 1160 | puts_filtered ("Selector $es\n"); |
3c76026d TT |
1161 | display_selector (current_windows_thread->h, |
1162 | current_windows_thread->wow64_context.SegEs); | |
46f9f931 | 1163 | puts_filtered ("Selector $ss\n"); |
3c76026d TT |
1164 | display_selector (current_windows_thread->h, |
1165 | current_windows_thread->wow64_context.SegSs); | |
46f9f931 | 1166 | puts_filtered ("Selector $fs\n"); |
3c76026d TT |
1167 | display_selector (current_windows_thread->h, |
1168 | current_windows_thread->wow64_context.SegFs); | |
46f9f931 | 1169 | puts_filtered ("Selector $gs\n"); |
3c76026d TT |
1170 | display_selector (current_windows_thread->h, |
1171 | current_windows_thread->wow64_context.SegGs); | |
46f9f931 HD |
1172 | } |
1173 | else | |
1174 | #endif | |
1175 | { | |
1176 | puts_filtered ("Selector $cs\n"); | |
3c76026d TT |
1177 | display_selector (current_windows_thread->h, |
1178 | current_windows_thread->context.SegCs); | |
46f9f931 | 1179 | puts_filtered ("Selector $ds\n"); |
3c76026d TT |
1180 | display_selector (current_windows_thread->h, |
1181 | current_windows_thread->context.SegDs); | |
46f9f931 | 1182 | puts_filtered ("Selector $es\n"); |
3c76026d TT |
1183 | display_selector (current_windows_thread->h, |
1184 | current_windows_thread->context.SegEs); | |
46f9f931 | 1185 | puts_filtered ("Selector $ss\n"); |
3c76026d TT |
1186 | display_selector (current_windows_thread->h, |
1187 | current_windows_thread->context.SegSs); | |
46f9f931 | 1188 | puts_filtered ("Selector $fs\n"); |
3c76026d TT |
1189 | display_selector (current_windows_thread->h, |
1190 | current_windows_thread->context.SegFs); | |
46f9f931 | 1191 | puts_filtered ("Selector $gs\n"); |
3c76026d TT |
1192 | display_selector (current_windows_thread->h, |
1193 | current_windows_thread->context.SegGs); | |
46f9f931 | 1194 | } |
c1748f97 PM |
1195 | } |
1196 | else | |
1197 | { | |
1198 | int sel; | |
1199 | sel = parse_and_eval_long (args); | |
1200 | printf_filtered ("Selector \"%s\"\n",args); | |
3c76026d | 1201 | display_selector (current_windows_thread->h, sel); |
c1748f97 PM |
1202 | } |
1203 | } | |
1204 | ||
8d30e395 | 1205 | /* See nat/windows-nat.h. */ |
7393af7c | 1206 | |
8d30e395 TT |
1207 | bool |
1208 | windows_nat::handle_ms_vc_exception (const EXCEPTION_RECORD *rec) | |
24e60978 | 1209 | { |
8d30e395 TT |
1210 | if (rec->NumberParameters >= 3 |
1211 | && (rec->ExceptionInformation[0] & 0xffffffff) == 0x1000) | |
24e60978 | 1212 | { |
8d30e395 TT |
1213 | DWORD named_thread_id; |
1214 | windows_thread_info *named_thread; | |
1215 | CORE_ADDR thread_name_target; | |
24cdb46e | 1216 | |
8d30e395 TT |
1217 | thread_name_target = rec->ExceptionInformation[1]; |
1218 | named_thread_id = (DWORD) (0xffffffff & rec->ExceptionInformation[2]); | |
24cdb46e | 1219 | |
8d30e395 TT |
1220 | if (named_thread_id == (DWORD) -1) |
1221 | named_thread_id = current_event.dwThreadId; | |
24cdb46e | 1222 | |
8d30e395 TT |
1223 | named_thread = thread_rec (ptid_t (current_event.dwProcessId, |
1224 | named_thread_id, 0), | |
1225 | DONT_INVALIDATE_CONTEXT); | |
1226 | if (named_thread != NULL) | |
1227 | { | |
1228 | int thread_name_len; | |
66920317 TT |
1229 | gdb::unique_xmalloc_ptr<char> thread_name |
1230 | = target_read_string (thread_name_target, 1025, &thread_name_len); | |
8d30e395 | 1231 | if (thread_name_len > 0) |
24cdb46e | 1232 | { |
8d30e395 TT |
1233 | thread_name.get ()[thread_name_len - 1] = '\0'; |
1234 | named_thread->name = std::move (thread_name); | |
24cdb46e | 1235 | } |
24cdb46e | 1236 | } |
8d30e395 TT |
1237 | |
1238 | return true; | |
24e60978 | 1239 | } |
8d30e395 TT |
1240 | |
1241 | return false; | |
24e60978 SC |
1242 | } |
1243 | ||
a010605f TT |
1244 | /* See nat/windows-nat.h. */ |
1245 | ||
1246 | bool | |
1247 | windows_nat::handle_access_violation (const EXCEPTION_RECORD *rec) | |
1248 | { | |
1249 | #ifdef __CYGWIN__ | |
1250 | /* See if the access violation happened within the cygwin DLL | |
1251 | itself. Cygwin uses a kind of exception handling to deal with | |
1252 | passed-in invalid addresses. gdb should not treat these as real | |
1253 | SEGVs since they will be silently handled by cygwin. A real SEGV | |
1254 | will (theoretically) be caught by cygwin later in the process and | |
1255 | will be sent as a cygwin-specific-signal. So, ignore SEGVs if | |
1256 | they show up within the text segment of the DLL itself. */ | |
1257 | const char *fn; | |
1258 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) rec->ExceptionAddress; | |
1259 | ||
1260 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1261 | && addr < cygwin_load_end)) | |
1262 | || (find_pc_partial_function (addr, &fn, NULL, NULL) | |
1263 | && startswith (fn, "KERNEL32!IsBad"))) | |
1264 | return true; | |
1265 | #endif | |
1266 | return false; | |
1267 | } | |
1268 | ||
17617f2d EZ |
1269 | /* Resume thread specified by ID, or all artificially suspended |
1270 | threads, if we are continuing execution. KILLED non-zero means we | |
1271 | have killed the inferior, so we should ignore weird errors due to | |
1272 | threads shutting down. */ | |
3cee93ac | 1273 | static BOOL |
17617f2d | 1274 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac | 1275 | { |
3cee93ac CF |
1276 | BOOL res; |
1277 | ||
0a4afda3 TT |
1278 | desired_stop_thread_id = id; |
1279 | ||
e758e19c TT |
1280 | if (matching_pending_stop (debug_events)) |
1281 | return TRUE; | |
6537bb24 | 1282 | |
93366324 | 1283 | for (windows_thread_info *th : thread_list) |
0a4afda3 | 1284 | if (id == -1 || id == (int) th->tid) |
6537bb24 | 1285 | { |
0a4afda3 TT |
1286 | if (!th->suspended) |
1287 | continue; | |
46f9f931 HD |
1288 | #ifdef __x86_64__ |
1289 | if (wow64_process) | |
6537bb24 | 1290 | { |
46f9f931 HD |
1291 | if (debug_registers_changed) |
1292 | { | |
1293 | th->wow64_context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1294 | th->wow64_context.Dr0 = dr[0]; | |
1295 | th->wow64_context.Dr1 = dr[1]; | |
1296 | th->wow64_context.Dr2 = dr[2]; | |
1297 | th->wow64_context.Dr3 = dr[3]; | |
1298 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1299 | th->wow64_context.Dr7 = dr[7]; | |
1300 | } | |
1301 | if (th->wow64_context.ContextFlags) | |
1302 | { | |
1303 | DWORD ec = 0; | |
1304 | ||
1305 | if (GetExitCodeThread (th->h, &ec) | |
1306 | && ec == STILL_ACTIVE) | |
1307 | { | |
1308 | BOOL status = Wow64SetThreadContext (th->h, | |
1309 | &th->wow64_context); | |
1310 | ||
1311 | if (!killed) | |
1312 | CHECK (status); | |
1313 | } | |
1314 | th->wow64_context.ContextFlags = 0; | |
1315 | } | |
6537bb24 | 1316 | } |
46f9f931 HD |
1317 | else |
1318 | #endif | |
6537bb24 | 1319 | { |
46f9f931 | 1320 | if (debug_registers_changed) |
17617f2d | 1321 | { |
46f9f931 HD |
1322 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; |
1323 | th->context.Dr0 = dr[0]; | |
1324 | th->context.Dr1 = dr[1]; | |
1325 | th->context.Dr2 = dr[2]; | |
1326 | th->context.Dr3 = dr[3]; | |
1327 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1328 | th->context.Dr7 = dr[7]; | |
1329 | } | |
1330 | if (th->context.ContextFlags) | |
1331 | { | |
1332 | DWORD ec = 0; | |
1333 | ||
1334 | if (GetExitCodeThread (th->h, &ec) | |
1335 | && ec == STILL_ACTIVE) | |
1336 | { | |
1337 | BOOL status = SetThreadContext (th->h, &th->context); | |
17617f2d | 1338 | |
46f9f931 HD |
1339 | if (!killed) |
1340 | CHECK (status); | |
1341 | } | |
1342 | th->context.ContextFlags = 0; | |
17617f2d | 1343 | } |
6537bb24 | 1344 | } |
98a03287 | 1345 | th->resume (); |
6537bb24 | 1346 | } |
0a4afda3 TT |
1347 | else |
1348 | { | |
1349 | /* When single-stepping a specific thread, other threads must | |
1350 | be suspended. */ | |
1351 | th->suspend (); | |
1352 | } | |
6537bb24 | 1353 | |
e758e19c | 1354 | res = continue_last_debug_event (continue_status, debug_events); |
3cee93ac | 1355 | |
68ffc902 JT |
1356 | if (!res) |
1357 | error (_("Failed to resume program execution" | |
1358 | " (ContinueDebugEvent failed, error %u)"), | |
1359 | (unsigned int) GetLastError ()); | |
1360 | ||
fa4ba8da | 1361 | debug_registers_changed = 0; |
3cee93ac CF |
1362 | return res; |
1363 | } | |
1364 | ||
d6dc8049 CF |
1365 | /* Called in pathological case where Windows fails to send a |
1366 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1367 | static DWORD |
5439edaa | 1368 | fake_create_process (void) |
3ade5333 CF |
1369 | { |
1370 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1371 | current_event.dwProcessId); | |
bf25528d CF |
1372 | if (current_process_handle != NULL) |
1373 | open_process_used = 1; | |
1374 | else | |
1375 | { | |
d50a0ce2 CV |
1376 | error (_("OpenProcess call failed, GetLastError = %u"), |
1377 | (unsigned) GetLastError ()); | |
bf25528d CF |
1378 | /* We can not debug anything in that case. */ |
1379 | } | |
50838d1b PA |
1380 | windows_add_thread (ptid_t (current_event.dwProcessId, 0, |
1381 | current_event.dwThreadId), | |
1382 | current_event.u.CreateThread.hThread, | |
1383 | current_event.u.CreateThread.lpThreadLocalBase, | |
1384 | true /* main_thread_p */); | |
ab4ee614 | 1385 | return current_event.dwThreadId; |
3ade5333 CF |
1386 | } |
1387 | ||
f6ac5f3d PA |
1388 | void |
1389 | windows_nat_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
a244bdca | 1390 | { |
876d1cd7 | 1391 | windows_thread_info *th; |
a244bdca CF |
1392 | DWORD continue_status = DBG_CONTINUE; |
1393 | ||
2dc38344 | 1394 | /* A specific PTID means `step only this thread id'. */ |
d7e15655 | 1395 | int resume_all = ptid == minus_one_ptid; |
2dc38344 PA |
1396 | |
1397 | /* If we're continuing all threads, it's the current inferior that | |
1398 | should be handled specially. */ | |
1399 | if (resume_all) | |
1400 | ptid = inferior_ptid; | |
a244bdca | 1401 | |
a493e3e2 | 1402 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1403 | { |
1404 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1405 | { | |
1406 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1407 | } | |
1408 | else if (sig == last_sig) | |
1409 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1410 | else | |
1411 | #if 0 | |
1412 | /* This code does not seem to work, because | |
1413 | the kernel does probably not consider changes in the ExceptionRecord | |
1414 | structure when passing the exception to the inferior. | |
1415 | Note that this seems possible in the exception handler itself. */ | |
1416 | { | |
73c13fe6 TT |
1417 | for (const xlate_exception &x : xlate) |
1418 | if (x.us == sig) | |
a244bdca | 1419 | { |
581e13c1 | 1420 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
73c13fe6 | 1421 | = x.them; |
a244bdca CF |
1422 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1423 | break; | |
1424 | } | |
1425 | if (continue_status == DBG_CONTINUE) | |
1426 | { | |
1427 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1428 | } | |
1429 | } | |
1430 | #endif | |
23942819 | 1431 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1432 | last_sig)); |
1433 | } | |
1434 | ||
a493e3e2 | 1435 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1436 | |
55dfc88f | 1437 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=0x%x, step=%d, sig=%d);\n", |
7c7411bc | 1438 | ptid.pid (), (unsigned) ptid.lwp (), step, sig)); |
a244bdca | 1439 | |
581e13c1 | 1440 | /* Get context for currently selected thread. */ |
28688adf | 1441 | th = thread_rec (inferior_ptid, DONT_INVALIDATE_CONTEXT); |
a244bdca CF |
1442 | if (th) |
1443 | { | |
46f9f931 HD |
1444 | #ifdef __x86_64__ |
1445 | if (wow64_process) | |
a244bdca | 1446 | { |
46f9f931 HD |
1447 | if (step) |
1448 | { | |
1449 | /* Single step by setting t bit. */ | |
1450 | struct regcache *regcache = get_current_regcache (); | |
1451 | struct gdbarch *gdbarch = regcache->arch (); | |
1452 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1453 | th->wow64_context.EFlags |= FLAG_TRACE_BIT; | |
1454 | } | |
a244bdca | 1455 | |
46f9f931 HD |
1456 | if (th->wow64_context.ContextFlags) |
1457 | { | |
1458 | if (debug_registers_changed) | |
1459 | { | |
1460 | th->wow64_context.Dr0 = dr[0]; | |
1461 | th->wow64_context.Dr1 = dr[1]; | |
1462 | th->wow64_context.Dr2 = dr[2]; | |
1463 | th->wow64_context.Dr3 = dr[3]; | |
1464 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1465 | th->wow64_context.Dr7 = dr[7]; | |
1466 | } | |
1467 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
1468 | th->wow64_context.ContextFlags = 0; | |
1469 | } | |
1470 | } | |
1471 | else | |
1472 | #endif | |
a244bdca | 1473 | { |
46f9f931 | 1474 | if (step) |
a244bdca | 1475 | { |
46f9f931 HD |
1476 | /* Single step by setting t bit. */ |
1477 | struct regcache *regcache = get_current_regcache (); | |
1478 | struct gdbarch *gdbarch = regcache->arch (); | |
1479 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1480 | th->context.EFlags |= FLAG_TRACE_BIT; | |
1481 | } | |
1482 | ||
1483 | if (th->context.ContextFlags) | |
1484 | { | |
1485 | if (debug_registers_changed) | |
1486 | { | |
1487 | th->context.Dr0 = dr[0]; | |
1488 | th->context.Dr1 = dr[1]; | |
1489 | th->context.Dr2 = dr[2]; | |
1490 | th->context.Dr3 = dr[3]; | |
1491 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1492 | th->context.Dr7 = dr[7]; | |
1493 | } | |
1494 | CHECK (SetThreadContext (th->h, &th->context)); | |
1495 | th->context.ContextFlags = 0; | |
a244bdca | 1496 | } |
a244bdca CF |
1497 | } |
1498 | } | |
1499 | ||
1500 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1501 | Otherwise complain. */ |
a244bdca | 1502 | |
2dc38344 | 1503 | if (resume_all) |
17617f2d | 1504 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1505 | else |
7c7411bc | 1506 | windows_continue (continue_status, ptid.lwp (), 0); |
a244bdca CF |
1507 | } |
1508 | ||
695de547 CF |
1509 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1510 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1511 | Note that this function is not available prior to Windows XP. In this case | |
1512 | we emit a warning. */ | |
d603d4b3 | 1513 | static BOOL WINAPI |
695de547 CF |
1514 | ctrl_c_handler (DWORD event_type) |
1515 | { | |
1516 | const int attach_flag = current_inferior ()->attach_flag; | |
1517 | ||
bb0613a5 PM |
1518 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1519 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1520 | return FALSE; |
1521 | ||
1522 | /* If the inferior and the debugger share the same console, do nothing as | |
1523 | the inferior has also received the Ctrl-C event. */ | |
1524 | if (!new_console && !attach_flag) | |
1525 | return TRUE; | |
1526 | ||
0363df3d HD |
1527 | #ifdef __x86_64__ |
1528 | if (wow64_process) | |
1529 | { | |
1530 | /* Call DbgUiRemoteBreakin of the 32bit ntdll.dll in the target process. | |
1531 | DebugBreakProcess would call the one of the 64bit ntdll.dll, which | |
1532 | can't be correctly handled by gdb. */ | |
1533 | if (wow64_dbgbreak == nullptr) | |
1534 | { | |
1535 | CORE_ADDR addr; | |
1536 | if (!find_minimal_symbol_address ("ntdll!DbgUiRemoteBreakin", | |
1537 | &addr, 0)) | |
1538 | wow64_dbgbreak = (void *) addr; | |
1539 | } | |
1540 | ||
1541 | if (wow64_dbgbreak != nullptr) | |
1542 | { | |
1543 | HANDLE thread = CreateRemoteThread (current_process_handle, NULL, | |
1544 | 0, (LPTHREAD_START_ROUTINE) | |
1545 | wow64_dbgbreak, NULL, 0, NULL); | |
1546 | if (thread) | |
1547 | CloseHandle (thread); | |
1548 | } | |
1549 | } | |
1550 | else | |
1551 | #endif | |
1552 | { | |
1553 | if (!DebugBreakProcess (current_process_handle)) | |
1554 | warning (_("Could not interrupt program. " | |
1555 | "Press Ctrl-c in the program console.")); | |
1556 | } | |
695de547 CF |
1557 | |
1558 | /* Return true to tell that Ctrl-C has been handled. */ | |
1559 | return TRUE; | |
1560 | } | |
1561 | ||
e6ad66bd JT |
1562 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1563 | requires handling by WFI (or whatever). */ | |
5b6d1e4f PA |
1564 | |
1565 | int | |
1566 | windows_nat_target::get_windows_debug_event (int pid, | |
1567 | struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1568 | { |
1569 | BOOL debug_event; | |
8a892701 | 1570 | DWORD continue_status, event_code; |
e6ad66bd | 1571 | DWORD thread_id = 0; |
1e37c281 | 1572 | |
0a4afda3 TT |
1573 | /* If there is a relevant pending stop, report it now. See the |
1574 | comment by the definition of "pending_stops" for details on why | |
1575 | this is needed. */ | |
d2977bc4 TT |
1576 | gdb::optional<pending_stop> stop = fetch_pending_stop (debug_events); |
1577 | if (stop.has_value ()) | |
0a4afda3 | 1578 | { |
d2977bc4 TT |
1579 | thread_id = stop->thread_id; |
1580 | *ourstatus = stop->status; | |
0a4afda3 | 1581 | |
50838d1b PA |
1582 | ptid_t ptid (current_event.dwProcessId, thread_id); |
1583 | windows_thread_info *th = thread_rec (ptid, INVALIDATE_CONTEXT); | |
1584 | th->reload_context = 1; | |
0a4afda3 | 1585 | |
d2977bc4 | 1586 | return thread_id; |
0a4afda3 TT |
1587 | } |
1588 | ||
a493e3e2 | 1589 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1590 | |
0a4afda3 | 1591 | if (!(debug_event = wait_for_debug_event (¤t_event, 1000))) |
29fe111d | 1592 | goto out; |
1e37c281 | 1593 | |
1e37c281 | 1594 | continue_status = DBG_CONTINUE; |
1e37c281 | 1595 | |
8a892701 | 1596 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1597 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
a244bdca | 1598 | have_saved_context = 0; |
8a892701 CF |
1599 | |
1600 | switch (event_code) | |
1e37c281 JM |
1601 | { |
1602 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1603 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1604 | (unsigned) current_event.dwProcessId, |
1605 | (unsigned) current_event.dwThreadId, | |
1606 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1607 | if (saw_create != 1) |
3ade5333 | 1608 | { |
5b6d1e4f | 1609 | inferior *inf = find_inferior_pid (this, current_event.dwProcessId); |
181e7f93 | 1610 | if (!saw_create && inf->attach_flag) |
3ade5333 | 1611 | { |
d6dc8049 CF |
1612 | /* Kludge around a Windows bug where first event is a create |
1613 | thread event. Caused when attached process does not have | |
581e13c1 | 1614 | a main thread. */ |
e6ad66bd JT |
1615 | thread_id = fake_create_process (); |
1616 | if (thread_id) | |
181e7f93 | 1617 | saw_create++; |
3ade5333 CF |
1618 | } |
1619 | break; | |
1620 | } | |
581e13c1 | 1621 | /* Record the existence of this thread. */ |
e6ad66bd | 1622 | thread_id = current_event.dwThreadId; |
50838d1b | 1623 | windows_add_thread |
7c7411bc | 1624 | (ptid_t (current_event.dwProcessId, current_event.dwThreadId, 0), |
c559d709 JB |
1625 | current_event.u.CreateThread.hThread, |
1626 | current_event.u.CreateThread.lpThreadLocalBase, | |
1627 | false /* main_thread_p */); | |
711e434b | 1628 | |
1e37c281 JM |
1629 | break; |
1630 | ||
1631 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1632 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1633 | (unsigned) current_event.dwProcessId, |
1634 | (unsigned) current_event.dwThreadId, | |
1635 | "EXIT_THREAD_DEBUG_EVENT")); | |
7c7411bc TT |
1636 | windows_delete_thread (ptid_t (current_event.dwProcessId, |
1637 | current_event.dwThreadId, 0), | |
c559d709 JB |
1638 | current_event.u.ExitThread.dwExitCode, |
1639 | false /* main_thread_p */); | |
1e37c281 JM |
1640 | break; |
1641 | ||
1642 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1643 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1644 | (unsigned) current_event.dwProcessId, |
1645 | (unsigned) current_event.dwThreadId, | |
1646 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1647 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1648 | if (++saw_create != 1) |
bf25528d | 1649 | break; |
1e37c281 | 1650 | |
dfe7f3ac | 1651 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
581e13c1 | 1652 | /* Add the main thread. */ |
50838d1b | 1653 | windows_add_thread |
7c7411bc TT |
1654 | (ptid_t (current_event.dwProcessId, |
1655 | current_event.dwThreadId, 0), | |
c559d709 JB |
1656 | current_event.u.CreateProcessInfo.hThread, |
1657 | current_event.u.CreateProcessInfo.lpThreadLocalBase, | |
1658 | true /* main_thread_p */); | |
e6ad66bd | 1659 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1660 | break; |
1661 | ||
1662 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1663 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1664 | (unsigned) current_event.dwProcessId, |
1665 | (unsigned) current_event.dwThreadId, | |
1666 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1667 | if (!windows_initialization_done) |
1668 | { | |
223ffa71 | 1669 | target_terminal::ours (); |
bc1e6c81 | 1670 | target_mourn_inferior (inferior_ptid); |
16d905e2 CF |
1671 | error (_("During startup program exited with code 0x%x."), |
1672 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1673 | } | |
1674 | else if (saw_create == 1) | |
1675 | { | |
7c7411bc TT |
1676 | windows_delete_thread (ptid_t (current_event.dwProcessId, |
1677 | current_event.dwThreadId, 0), | |
c559d709 | 1678 | 0, true /* main_thread_p */); |
559e7e50 EZ |
1679 | DWORD exit_status = current_event.u.ExitProcess.dwExitCode; |
1680 | /* If the exit status looks like a fatal exception, but we | |
1681 | don't recognize the exception's code, make the original | |
1682 | exit status value available, to avoid losing | |
1683 | information. */ | |
1684 | int exit_signal | |
1685 | = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1; | |
1686 | if (exit_signal == -1) | |
1687 | { | |
1688 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1689 | ourstatus->value.integer = exit_status; | |
1690 | } | |
1691 | else | |
1692 | { | |
1693 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1694 | ourstatus->value.sig = gdb_signal_from_host (exit_signal); | |
1695 | } | |
8ed5b76e | 1696 | thread_id = current_event.dwThreadId; |
16d905e2 | 1697 | } |
8a892701 | 1698 | break; |
1e37c281 JM |
1699 | |
1700 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1701 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1702 | (unsigned) current_event.dwProcessId, |
1703 | (unsigned) current_event.dwThreadId, | |
1704 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1705 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1706 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1707 | break; |
bf469271 | 1708 | catch_errors (handle_load_dll); |
450005e7 CF |
1709 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1710 | ourstatus->value.integer = 0; | |
ab4ee614 | 1711 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1712 | break; |
1713 | ||
1714 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1715 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1716 | (unsigned) current_event.dwProcessId, |
1717 | (unsigned) current_event.dwThreadId, | |
1718 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1719 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1720 | break; |
bf469271 | 1721 | catch_errors (handle_unload_dll); |
de1b3c3d PA |
1722 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1723 | ourstatus->value.integer = 0; | |
ab4ee614 | 1724 | thread_id = current_event.dwThreadId; |
d3ff4a77 | 1725 | break; |
1e37c281 JM |
1726 | |
1727 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1728 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1729 | (unsigned) current_event.dwProcessId, |
1730 | (unsigned) current_event.dwThreadId, | |
1731 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1732 | if (saw_create != 1) |
1733 | break; | |
8d30e395 | 1734 | switch (handle_exception (ourstatus, debug_exceptions)) |
24cdb46e РИ |
1735 | { |
1736 | case HANDLE_EXCEPTION_UNHANDLED: | |
1737 | default: | |
1738 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1739 | break; | |
1740 | case HANDLE_EXCEPTION_HANDLED: | |
1741 | thread_id = current_event.dwThreadId; | |
1742 | break; | |
1743 | case HANDLE_EXCEPTION_IGNORED: | |
1744 | continue_status = DBG_CONTINUE; | |
1745 | break; | |
1746 | } | |
1e37c281 JM |
1747 | break; |
1748 | ||
581e13c1 | 1749 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1750 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1751 | (unsigned) current_event.dwProcessId, |
1752 | (unsigned) current_event.dwThreadId, | |
1753 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1754 | if (saw_create != 1) |
1755 | break; | |
e6ad66bd | 1756 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1757 | break; |
9d3789f7 | 1758 | |
1e37c281 | 1759 | default: |
dfe7f3ac CF |
1760 | if (saw_create != 1) |
1761 | break; | |
0c3d84be | 1762 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1763 | (unsigned) current_event.dwProcessId, |
1764 | (unsigned) current_event.dwThreadId); | |
1765 | printf_unfiltered (" unknown event code %u\n", | |
1766 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1767 | break; |
1768 | } | |
1769 | ||
e6ad66bd | 1770 | if (!thread_id || saw_create != 1) |
a244bdca | 1771 | { |
0a4afda3 TT |
1772 | CHECK (windows_continue (continue_status, desired_stop_thread_id, 0)); |
1773 | } | |
1774 | else if (desired_stop_thread_id != -1 && desired_stop_thread_id != thread_id) | |
1775 | { | |
1776 | /* Pending stop. See the comment by the definition of | |
1777 | "pending_stops" for details on why this is needed. */ | |
1778 | DEBUG_EVENTS (("get_windows_debug_event - " | |
1779 | "unexpected stop in 0x%x (expecting 0x%x)\n", | |
1780 | thread_id, desired_stop_thread_id)); | |
1781 | ||
1782 | if (current_event.dwDebugEventCode == EXCEPTION_DEBUG_EVENT | |
13302e95 HD |
1783 | && ((current_event.u.Exception.ExceptionRecord.ExceptionCode |
1784 | == EXCEPTION_BREAKPOINT) | |
1785 | || (current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1786 | == STATUS_WX86_BREAKPOINT)) | |
0a4afda3 TT |
1787 | && windows_initialization_done) |
1788 | { | |
28688adf | 1789 | ptid_t ptid = ptid_t (current_event.dwProcessId, thread_id, 0); |
50838d1b | 1790 | windows_thread_info *th = thread_rec (ptid, INVALIDATE_CONTEXT); |
0a4afda3 | 1791 | th->stopped_at_software_breakpoint = true; |
7be2bb4f | 1792 | th->pc_adjusted = false; |
0a4afda3 TT |
1793 | } |
1794 | pending_stops.push_back ({thread_id, *ourstatus, current_event}); | |
1795 | thread_id = 0; | |
1796 | CHECK (windows_continue (continue_status, desired_stop_thread_id, 0)); | |
a244bdca | 1797 | } |
1e37c281 JM |
1798 | |
1799 | out: | |
e6ad66bd | 1800 | return thread_id; |
1e37c281 JM |
1801 | } |
1802 | ||
2dc38344 | 1803 | /* Wait for interesting events to occur in the target process. */ |
f6ac5f3d PA |
1804 | ptid_t |
1805 | windows_nat_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus, | |
1806 | int options) | |
24e60978 | 1807 | { |
2dc38344 | 1808 | int pid = -1; |
39f77062 | 1809 | |
24e60978 SC |
1810 | /* We loop when we get a non-standard exception rather than return |
1811 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1812 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1813 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1814 | isn't necessarily what you think it is. */ |
24e60978 SC |
1815 | |
1816 | while (1) | |
450005e7 | 1817 | { |
c57918b2 | 1818 | int retval; |
2b008701 | 1819 | |
695de547 CF |
1820 | /* If the user presses Ctrl-c while the debugger is waiting |
1821 | for an event, he expects the debugger to interrupt his program | |
1822 | and to get the prompt back. There are two possible situations: | |
1823 | ||
1824 | - The debugger and the program do not share the console, in | |
1825 | which case the Ctrl-c event only reached the debugger. | |
1826 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1827 | the inferior. Note that this case is working starting with |
1828 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1829 | inferior console. |
1830 | ||
1831 | - The debugger and the program share the same console, in which | |
1832 | case both debugger and inferior will receive the Ctrl-c event. | |
1833 | In that case the ctrl_c handler will ignore the event, as the | |
1834 | Ctrl-c event generated inside the inferior will trigger the | |
1835 | expected debug event. | |
1836 | ||
1837 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1838 | signal first and the delay until GDB receives that signal | |
1839 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1840 | after we have unblocked the CTRL+C handler. This would | |
1841 | lead to the debugger stopping prematurely while handling | |
1842 | the new-thread event that comes with the handling of the SIGINT | |
1843 | inside the inferior, and then stop again immediately when | |
1844 | the user tries to resume the execution in the inferior. | |
1845 | This is a classic race that we should try to fix one day. */ | |
1846 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
5b6d1e4f | 1847 | retval = get_windows_debug_event (pid, ourstatus); |
695de547 | 1848 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1849 | |
450005e7 | 1850 | if (retval) |
0a4afda3 TT |
1851 | { |
1852 | ptid_t result = ptid_t (current_event.dwProcessId, retval, 0); | |
1853 | ||
50838d1b PA |
1854 | if (ourstatus->kind != TARGET_WAITKIND_EXITED |
1855 | && ourstatus->kind != TARGET_WAITKIND_SIGNALLED) | |
0a4afda3 | 1856 | { |
50838d1b PA |
1857 | windows_thread_info *th = thread_rec (result, INVALIDATE_CONTEXT); |
1858 | ||
1859 | if (th != nullptr) | |
7be2bb4f | 1860 | { |
50838d1b PA |
1861 | th->stopped_at_software_breakpoint = false; |
1862 | if (current_event.dwDebugEventCode == EXCEPTION_DEBUG_EVENT | |
1863 | && ((current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1864 | == EXCEPTION_BREAKPOINT) | |
1865 | || (current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1866 | == STATUS_WX86_BREAKPOINT)) | |
1867 | && windows_initialization_done) | |
1868 | { | |
1869 | th->stopped_at_software_breakpoint = true; | |
1870 | th->pc_adjusted = false; | |
1871 | } | |
7be2bb4f | 1872 | } |
0a4afda3 TT |
1873 | } |
1874 | ||
1875 | return result; | |
1876 | } | |
450005e7 CF |
1877 | else |
1878 | { | |
1879 | int detach = 0; | |
3cee93ac | 1880 | |
98bbd631 AC |
1881 | if (deprecated_ui_loop_hook != NULL) |
1882 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1883 | |
450005e7 | 1884 | if (detach) |
f6ac5f3d | 1885 | kill (); |
450005e7 CF |
1886 | } |
1887 | } | |
24e60978 SC |
1888 | } |
1889 | ||
ea39ad35 JB |
1890 | /* Iterate over all DLLs currently mapped by our inferior, and |
1891 | add them to our list of solibs. */ | |
94481b8c JB |
1892 | |
1893 | static void | |
ea39ad35 | 1894 | windows_add_all_dlls (void) |
94481b8c | 1895 | { |
94481b8c JB |
1896 | HMODULE dummy_hmodule; |
1897 | DWORD cb_needed; | |
1898 | HMODULE *hmodules; | |
1899 | int i; | |
1900 | ||
46f9f931 HD |
1901 | #ifdef __x86_64__ |
1902 | if (wow64_process) | |
1903 | { | |
1904 | if (EnumProcessModulesEx (current_process_handle, &dummy_hmodule, | |
1905 | sizeof (HMODULE), &cb_needed, | |
1906 | LIST_MODULES_32BIT) == 0) | |
1907 | return; | |
1908 | } | |
1909 | else | |
1910 | #endif | |
1911 | { | |
1912 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, | |
1913 | sizeof (HMODULE), &cb_needed) == 0) | |
1914 | return; | |
1915 | } | |
94481b8c JB |
1916 | |
1917 | if (cb_needed < 1) | |
1918 | return; | |
1919 | ||
1920 | hmodules = (HMODULE *) alloca (cb_needed); | |
46f9f931 HD |
1921 | #ifdef __x86_64__ |
1922 | if (wow64_process) | |
1923 | { | |
1924 | if (EnumProcessModulesEx (current_process_handle, hmodules, | |
1925 | cb_needed, &cb_needed, | |
1926 | LIST_MODULES_32BIT) == 0) | |
1927 | return; | |
1928 | } | |
1929 | else | |
1930 | #endif | |
1931 | { | |
1932 | if (EnumProcessModules (current_process_handle, hmodules, | |
1933 | cb_needed, &cb_needed) == 0) | |
1934 | return; | |
1935 | } | |
94481b8c | 1936 | |
d503b685 HD |
1937 | char system_dir[__PMAX]; |
1938 | char syswow_dir[__PMAX]; | |
1939 | size_t system_dir_len = 0; | |
ebea7626 HD |
1940 | bool convert_syswow_dir = false; |
1941 | #ifdef __x86_64__ | |
d503b685 | 1942 | if (wow64_process) |
ebea7626 | 1943 | #endif |
d503b685 | 1944 | { |
ebea7626 HD |
1945 | /* This fails on 32bit Windows because it has no SysWOW64 directory, |
1946 | and in this case a path conversion isn't necessary. */ | |
1947 | UINT len = GetSystemWow64DirectoryA (syswow_dir, sizeof (syswow_dir)); | |
1948 | if (len > 0) | |
1949 | { | |
1950 | /* Check that we have passed a large enough buffer. */ | |
1951 | gdb_assert (len < sizeof (syswow_dir)); | |
1952 | ||
1953 | len = GetSystemDirectoryA (system_dir, sizeof (system_dir)); | |
1954 | /* Error check. */ | |
1955 | gdb_assert (len != 0); | |
1956 | /* Check that we have passed a large enough buffer. */ | |
1957 | gdb_assert (len < sizeof (system_dir)); | |
1958 | ||
1959 | strcat (system_dir, "\\"); | |
1960 | strcat (syswow_dir, "\\"); | |
1961 | system_dir_len = strlen (system_dir); | |
1962 | ||
1963 | convert_syswow_dir = true; | |
1964 | } | |
1965 | ||
d503b685 | 1966 | } |
ea39ad35 | 1967 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
1968 | { |
1969 | MODULEINFO mi; | |
774f74c2 PM |
1970 | #ifdef __USEWIDE |
1971 | wchar_t dll_name[__PMAX]; | |
d503b685 | 1972 | char dll_name_mb[__PMAX]; |
774f74c2 | 1973 | #else |
94481b8c | 1974 | char dll_name[__PMAX]; |
774f74c2 | 1975 | #endif |
d503b685 | 1976 | const char *name; |
94481b8c JB |
1977 | if (GetModuleInformation (current_process_handle, hmodules[i], |
1978 | &mi, sizeof (mi)) == 0) | |
1979 | continue; | |
1980 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
1981 | dll_name, sizeof (dll_name)) == 0) | |
1982 | continue; | |
774f74c2 | 1983 | #ifdef __USEWIDE |
d503b685 HD |
1984 | wcstombs (dll_name_mb, dll_name, __PMAX); |
1985 | name = dll_name_mb; | |
774f74c2 PM |
1986 | #else |
1987 | name = dll_name; | |
1988 | #endif | |
ebea7626 | 1989 | /* Convert the DLL path of 32bit processes returned by |
d503b685 HD |
1990 | GetModuleFileNameEx from the 64bit system directory to the |
1991 | 32bit syswow64 directory if necessary. */ | |
1992 | std::string syswow_dll_path; | |
ebea7626 | 1993 | if (convert_syswow_dir |
d503b685 HD |
1994 | && strncasecmp (name, system_dir, system_dir_len) == 0 |
1995 | && strchr (name + system_dir_len, '\\') == nullptr) | |
1996 | { | |
1997 | syswow_dll_path = syswow_dir; | |
1998 | syswow_dll_path += name + system_dir_len; | |
1999 | name = syswow_dll_path.c_str(); | |
2000 | } | |
ea39ad35 JB |
2001 | |
2002 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
2003 | solib_end = solib_end->next; | |
94481b8c JB |
2004 | } |
2005 | } | |
2006 | ||
50838d1b PA |
2007 | void |
2008 | windows_nat_target::do_initial_windows_stuff (DWORD pid, bool attaching) | |
9d3789f7 | 2009 | { |
fa4ba8da | 2010 | int i; |
d6b48e9c | 2011 | struct inferior *inf; |
9d3789f7 | 2012 | |
a493e3e2 | 2013 | last_sig = GDB_SIGNAL_0; |
bf25528d | 2014 | open_process_used = 0; |
fa4ba8da | 2015 | debug_registers_changed = 0; |
dfe7f3ac | 2016 | debug_registers_used = 0; |
fa4ba8da PM |
2017 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
2018 | dr[i] = 0; | |
10325bc5 | 2019 | #ifdef __CYGWIN__ |
de1b3c3d | 2020 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 2021 | #endif |
9d3789f7 CF |
2022 | current_event.dwProcessId = pid; |
2023 | memset (¤t_event, 0, sizeof (current_event)); | |
50838d1b PA |
2024 | if (!target_is_pushed (this)) |
2025 | push_target (this); | |
cb851954 | 2026 | disable_breakpoints_in_shlibs (); |
dc05df57 | 2027 | windows_clear_solib (); |
88056fbb | 2028 | clear_proceed_status (0); |
9d3789f7 CF |
2029 | init_wait_for_inferior (); |
2030 | ||
46f9f931 HD |
2031 | #ifdef __x86_64__ |
2032 | ignore_first_breakpoint = !attaching && wow64_process; | |
2033 | ||
2034 | if (!wow64_process) | |
2035 | { | |
2036 | windows_set_context_register_offsets (amd64_mappings); | |
2037 | windows_set_segment_register_p (amd64_windows_segment_register_p); | |
2038 | } | |
2039 | else | |
2040 | #endif | |
2041 | { | |
2042 | windows_set_context_register_offsets (i386_mappings); | |
2043 | windows_set_segment_register_p (i386_windows_segment_register_p); | |
2044 | } | |
2045 | ||
6c95b8df PA |
2046 | inf = current_inferior (); |
2047 | inferior_appeared (inf, pid); | |
181e7f93 | 2048 | inf->attach_flag = attaching; |
7f9f62ba | 2049 | |
223ffa71 TT |
2050 | target_terminal::init (); |
2051 | target_terminal::inferior (); | |
9d3789f7 | 2052 | |
16d905e2 | 2053 | windows_initialization_done = 0; |
c72f45d1 | 2054 | |
50838d1b PA |
2055 | ptid_t last_ptid; |
2056 | ||
9d3789f7 CF |
2057 | while (1) |
2058 | { | |
c72f45d1 PA |
2059 | struct target_waitstatus status; |
2060 | ||
50838d1b | 2061 | last_ptid = this->wait (minus_one_ptid, &status, 0); |
c72f45d1 PA |
2062 | |
2063 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
2064 | events. */ | |
2065 | if (status.kind != TARGET_WAITKIND_LOADED | |
2066 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 2067 | break; |
c72f45d1 | 2068 | |
50838d1b | 2069 | this->resume (minus_one_ptid, 0, GDB_SIGNAL_0); |
9d3789f7 | 2070 | } |
eff8332b | 2071 | |
50838d1b PA |
2072 | switch_to_thread (find_thread_ptid (this, last_ptid)); |
2073 | ||
ea39ad35 | 2074 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
2075 | we can iterate over all DLLs and load them in. |
2076 | ||
2077 | We avoid doing it any earlier because, on certain versions of Windows, | |
2078 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
2079 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
2080 | include the DLL name, preventing us from creating an associated SO. | |
2081 | A possible explanation is that ntdll.dll might be mapped before | |
2082 | the SO info gets created by the Windows system -- ntdll.dll is | |
2083 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
2084 | do not seem to suffer from that problem. | |
2085 | ||
2086 | Rather than try to work around this sort of issue, it is much | |
2087 | simpler to just ignore DLL load/unload events during the startup | |
2088 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 2089 | windows_add_all_dlls (); |
94481b8c | 2090 | |
16d905e2 | 2091 | windows_initialization_done = 1; |
9d3789f7 CF |
2092 | return; |
2093 | } | |
2094 | ||
616a9dc4 CV |
2095 | /* Try to set or remove a user privilege to the current process. Return -1 |
2096 | if that fails, the previous setting of that privilege otherwise. | |
2097 | ||
2098 | This code is copied from the Cygwin source code and rearranged to allow | |
2099 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 2100 | available on NT/2K/XP. */ |
616a9dc4 CV |
2101 | static int |
2102 | set_process_privilege (const char *privilege, BOOL enable) | |
2103 | { | |
616a9dc4 CV |
2104 | HANDLE token_hdl = NULL; |
2105 | LUID restore_priv; | |
2106 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
2107 | int ret = -1; | |
2108 | DWORD size; | |
2109 | ||
616a9dc4 CV |
2110 | if (!OpenProcessToken (GetCurrentProcess (), |
2111 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
2112 | &token_hdl)) | |
2113 | goto out; | |
2114 | ||
418c6cb3 | 2115 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
2116 | goto out; |
2117 | ||
2118 | new_priv.PrivilegeCount = 1; | |
2119 | new_priv.Privileges[0].Luid = restore_priv; | |
2120 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
2121 | ||
2122 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 2123 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
2124 | goto out; |
2125 | #if 0 | |
2126 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
2127 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 2128 | windows_attach(). */ |
616a9dc4 | 2129 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 2130 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
2131 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
2132 | goto out; | |
2133 | #endif | |
2134 | ||
2135 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
2136 | ||
2137 | out: | |
2138 | if (token_hdl) | |
2139 | CloseHandle (token_hdl); | |
2140 | ||
2141 | return ret; | |
2142 | } | |
2143 | ||
02cc9f49 | 2144 | /* Attach to process PID, then initialize for debugging it. */ |
f6ac5f3d PA |
2145 | |
2146 | void | |
2147 | windows_nat_target::attach (const char *args, int from_tty) | |
24e60978 SC |
2148 | { |
2149 | BOOL ok; | |
559e75c0 | 2150 | DWORD pid; |
24e60978 | 2151 | |
74164c56 | 2152 | pid = parse_pid_to_attach (args); |
24e60978 | 2153 | |
616a9dc4 CV |
2154 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
2155 | { | |
2156 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
2157 | printf_unfiltered ("This can cause attach to " |
2158 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
2159 | } |
2160 | ||
dc05df57 | 2161 | windows_init_thread_list (); |
9d3789f7 | 2162 | ok = DebugActiveProcess (pid); |
91a175b3 | 2163 | saw_create = 0; |
24e60978 | 2164 | |
10325bc5 | 2165 | #ifdef __CYGWIN__ |
24e60978 | 2166 | if (!ok) |
baa93fa6 | 2167 | { |
581e13c1 | 2168 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
2169 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
2170 | ||
2171 | if (pid > 0) | |
2172 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
2173 | } |
2174 | #endif | |
baa93fa6 | 2175 | |
10325bc5 | 2176 | if (!ok) |
c9739b6a TT |
2177 | error (_("Can't attach to process %u (error %u)"), |
2178 | (unsigned) pid, (unsigned) GetLastError ()); | |
24e60978 | 2179 | |
2b008701 | 2180 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 2181 | |
24e60978 SC |
2182 | if (from_tty) |
2183 | { | |
d9fa87f4 | 2184 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2185 | |
2186 | if (exec_file) | |
2187 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
a068643d | 2188 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2189 | else |
2190 | printf_unfiltered ("Attaching to %s\n", | |
a068643d | 2191 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2192 | } |
2193 | ||
46f9f931 HD |
2194 | #ifdef __x86_64__ |
2195 | HANDLE h = OpenProcess (PROCESS_QUERY_INFORMATION, FALSE, pid); | |
2196 | if (h != NULL) | |
2197 | { | |
2198 | BOOL wow64; | |
2199 | if (IsWow64Process (h, &wow64)) | |
2200 | wow64_process = wow64; | |
2201 | CloseHandle (h); | |
2202 | } | |
2203 | #endif | |
2204 | ||
50838d1b | 2205 | do_initial_windows_stuff (pid, 1); |
223ffa71 | 2206 | target_terminal::ours (); |
24e60978 SC |
2207 | } |
2208 | ||
f6ac5f3d PA |
2209 | void |
2210 | windows_nat_target::detach (inferior *inf, int from_tty) | |
24e60978 | 2211 | { |
02cc9f49 CV |
2212 | int detached = 1; |
2213 | ||
8473b447 | 2214 | ptid_t ptid = minus_one_ptid; |
f6ac5f3d | 2215 | resume (ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 2216 | |
2b008701 CF |
2217 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
2218 | { | |
d50a0ce2 CV |
2219 | error (_("Can't detach process %u (error %u)"), |
2220 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 2221 | detached = 0; |
02cc9f49 | 2222 | } |
2b008701 CF |
2223 | DebugSetProcessKillOnExit (FALSE); |
2224 | ||
02cc9f49 | 2225 | if (detached && from_tty) |
24e60978 | 2226 | { |
a121b7c1 | 2227 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2228 | if (exec_file == 0) |
2229 | exec_file = ""; | |
d50a0ce2 CV |
2230 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
2231 | (unsigned) current_event.dwProcessId); | |
24e60978 | 2232 | } |
7f9f62ba | 2233 | |
df7e5265 | 2234 | x86_cleanup_dregs (); |
50838d1b | 2235 | switch_to_no_thread (); |
b7a08269 | 2236 | detach_inferior (inf); |
7f9f62ba | 2237 | |
f6ac5f3d | 2238 | maybe_unpush_target (); |
24e60978 SC |
2239 | } |
2240 | ||
47f7ffdb JB |
2241 | /* Try to determine the executable filename. |
2242 | ||
2243 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
2244 | ||
2245 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
2246 | this function returns nonzero. | |
2247 | ||
2248 | Otherwise, this function returns zero and the contents of | |
2249 | EXE_NAME_RET is undefined. */ | |
2250 | ||
2251 | static int | |
2252 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
2253 | { | |
2254 | DWORD len; | |
2255 | HMODULE dh_buf; | |
2256 | DWORD cbNeeded; | |
2257 | ||
2258 | cbNeeded = 0; | |
46f9f931 HD |
2259 | #ifdef __x86_64__ |
2260 | if (wow64_process) | |
2261 | { | |
2262 | if (!EnumProcessModulesEx (current_process_handle, &dh_buf, | |
2263 | sizeof (HMODULE), &cbNeeded, | |
2264 | LIST_MODULES_32BIT) || !cbNeeded) | |
2265 | return 0; | |
2266 | } | |
2267 | else | |
2268 | #endif | |
2269 | { | |
2270 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
2271 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
2272 | return 0; | |
2273 | } | |
47f7ffdb JB |
2274 | |
2275 | /* We know the executable is always first in the list of modules, | |
2276 | which we just fetched. So no need to fetch more. */ | |
2277 | ||
2278 | #ifdef __CYGWIN__ | |
2279 | { | |
2280 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
2281 | the filename into a temporary buffer first, and then convert it | |
2282 | to POSIX format into the destination buffer. */ | |
0ae534d2 | 2283 | cygwin_buf_t *pathbuf = (cygwin_buf_t *) alloca (exe_name_max_len * sizeof (cygwin_buf_t)); |
47f7ffdb JB |
2284 | |
2285 | len = GetModuleFileNameEx (current_process_handle, | |
2286 | dh_buf, pathbuf, exe_name_max_len); | |
2287 | if (len == 0) | |
2288 | error (_("Error getting executable filename: %u."), | |
2289 | (unsigned) GetLastError ()); | |
2290 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
2291 | exe_name_max_len) < 0) | |
2292 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
2293 | } | |
2294 | #else | |
2295 | len = GetModuleFileNameEx (current_process_handle, | |
2296 | dh_buf, exe_name_ret, exe_name_max_len); | |
2297 | if (len == 0) | |
2298 | error (_("Error getting executable filename: %u."), | |
2299 | (unsigned) GetLastError ()); | |
2300 | #endif | |
2301 | ||
2302 | return 1; /* success */ | |
2303 | } | |
2304 | ||
2305 | /* The pid_to_exec_file target_ops method for this platform. */ | |
2306 | ||
f6ac5f3d PA |
2307 | char * |
2308 | windows_nat_target::pid_to_exec_file (int pid) | |
47216e51 | 2309 | { |
b3c613f2 | 2310 | static char path[__PMAX]; |
10325bc5 | 2311 | #ifdef __CYGWIN__ |
581e13c1 | 2312 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
2313 | int nchars; |
2314 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
2315 | |
2316 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
2317 | nchars = readlink (procexe, path, sizeof(path)); |
2318 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 2319 | { |
33605d39 CF |
2320 | path[nchars] = '\0'; /* Got it */ |
2321 | return path; | |
47216e51 | 2322 | } |
10325bc5 PA |
2323 | #endif |
2324 | ||
33605d39 | 2325 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 2326 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 2327 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
2328 | path[0] = '\0'; |
2329 | ||
2330 | return path; | |
47216e51 CV |
2331 | } |
2332 | ||
24e60978 SC |
2333 | /* Print status information about what we're accessing. */ |
2334 | ||
f6ac5f3d PA |
2335 | void |
2336 | windows_nat_target::files_info () | |
24e60978 | 2337 | { |
181e7f93 PA |
2338 | struct inferior *inf = current_inferior (); |
2339 | ||
24e60978 | 2340 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 | 2341 | inf->attach_flag ? "attached" : "child", |
a068643d | 2342 | target_pid_to_str (inferior_ptid).c_str ()); |
24e60978 SC |
2343 | } |
2344 | ||
cd44747c PM |
2345 | /* Modify CreateProcess parameters for use of a new separate console. |
2346 | Parameters are: | |
2347 | *FLAGS: DWORD parameter for general process creation flags. | |
2348 | *SI: STARTUPINFO structure, for which the console window size and | |
2349 | console buffer size is filled in if GDB is running in a console. | |
2350 | to create the new console. | |
2351 | The size of the used font is not available on all versions of | |
2352 | Windows OS. Furthermore, the current font might not be the default | |
2353 | font, but this is still better than before. | |
2354 | If the windows and buffer sizes are computed, | |
2355 | SI->DWFLAGS is changed so that this information is used | |
2356 | by CreateProcess function. */ | |
2357 | ||
2358 | static void | |
2359 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
2360 | { | |
2361 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
2362 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
2363 | ||
2364 | if (hconsole != INVALID_HANDLE_VALUE) | |
2365 | { | |
2366 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2367 | COORD font_size; | |
2368 | CONSOLE_FONT_INFO cfi; | |
2369 | ||
2370 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2371 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2372 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2373 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2374 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2375 | if (font_size.X) | |
2376 | si->dwXSize *= font_size.X; | |
2377 | else | |
2378 | si->dwXSize *= 8; | |
2379 | if (font_size.Y) | |
2380 | si->dwYSize *= font_size.Y; | |
2381 | else | |
2382 | si->dwYSize *= 12; | |
2383 | si->dwXCountChars = sbinfo.dwSize.X; | |
2384 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2385 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2386 | } | |
2387 | *flags |= CREATE_NEW_CONSOLE; | |
2388 | } | |
2389 | ||
c93dbcba EZ |
2390 | #ifndef __CYGWIN__ |
2391 | /* Function called by qsort to sort environment strings. */ | |
2392 | ||
2393 | static int | |
2394 | envvar_cmp (const void *a, const void *b) | |
2395 | { | |
2396 | const char **p = (const char **) a; | |
2397 | const char **q = (const char **) b; | |
2398 | return strcasecmp (*p, *q); | |
2399 | } | |
2400 | #endif | |
2401 | ||
b7ff339d CV |
2402 | #ifdef __CYGWIN__ |
2403 | static void | |
2404 | clear_win32_environment (char **env) | |
2405 | { | |
2406 | int i; | |
2407 | size_t len; | |
2408 | wchar_t *copy = NULL, *equalpos; | |
2409 | ||
2410 | for (i = 0; env[i] && *env[i]; i++) | |
2411 | { | |
2412 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2413 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2414 | mbstowcs (copy, env[i], len); | |
2415 | equalpos = wcschr (copy, L'='); | |
2416 | if (equalpos) | |
2417 | *equalpos = L'\0'; | |
2418 | SetEnvironmentVariableW (copy, NULL); | |
2419 | } | |
2420 | xfree (copy); | |
2421 | } | |
2422 | #endif | |
2423 | ||
8ba42bc5 EZ |
2424 | #ifndef __CYGWIN__ |
2425 | ||
2426 | /* Redirection of inferior I/O streams for native MS-Windows programs. | |
2427 | Unlike on Unix, where this is handled by invoking the inferior via | |
2428 | the shell, on MS-Windows we need to emulate the cmd.exe shell. | |
2429 | ||
2430 | The official documentation of the cmd.exe redirection features is here: | |
2431 | ||
2432 | http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/redirection.mspx | |
2433 | ||
2434 | (That page talks about Windows XP, but there's no newer | |
2435 | documentation, so we assume later versions of cmd.exe didn't change | |
2436 | anything.) | |
2437 | ||
2438 | Caveat: the documentation on that page seems to include a few lies. | |
2439 | For example, it describes strange constructs 1<&2 and 2<&1, which | |
2440 | seem to work only when 1>&2 resp. 2>&1 would make sense, and so I | |
2441 | think the cmd.exe parser of the redirection symbols simply doesn't | |
2442 | care about the < vs > distinction in these cases. Therefore, the | |
2443 | supported features are explicitly documented below. | |
2444 | ||
2445 | The emulation below aims at supporting all the valid use cases | |
2446 | supported by cmd.exe, which include: | |
2447 | ||
2448 | < FILE redirect standard input from FILE | |
2449 | 0< FILE redirect standard input from FILE | |
2450 | <&N redirect standard input from file descriptor N | |
2451 | 0<&N redirect standard input from file descriptor N | |
2452 | > FILE redirect standard output to FILE | |
2453 | >> FILE append standard output to FILE | |
2454 | 1>> FILE append standard output to FILE | |
2455 | >&N redirect standard output to file descriptor N | |
2456 | 1>&N redirect standard output to file descriptor N | |
2457 | >>&N append standard output to file descriptor N | |
2458 | 1>>&N append standard output to file descriptor N | |
2459 | 2> FILE redirect standard error to FILE | |
2460 | 2>> FILE append standard error to FILE | |
2461 | 2>&N redirect standard error to file descriptor N | |
2462 | 2>>&N append standard error to file descriptor N | |
2463 | ||
2464 | Note that using N > 2 in the above construct is supported, but | |
2465 | requires that the corresponding file descriptor be open by some | |
2466 | means elsewhere or outside GDB. Also note that using ">&0" or | |
2467 | "<&2" will generally fail, because the file descriptor redirected | |
2468 | from is normally open in an incompatible mode (e.g., FD 0 is open | |
2469 | for reading only). IOW, use of such tricks is not recommended; | |
2470 | you are on your own. | |
2471 | ||
2472 | We do NOT support redirection of file descriptors above 2, as in | |
2473 | "3>SOME-FILE", because MinGW compiled programs don't (supporting | |
2474 | that needs special handling in the startup code that MinGW | |
2475 | doesn't have). Pipes are also not supported. | |
2476 | ||
2477 | As for invalid use cases, where the redirection contains some | |
2478 | error, the emulation below will detect that and produce some | |
2479 | error and/or failure. But the behavior in those cases is not | |
2480 | bug-for-bug compatible with what cmd.exe does in those cases. | |
2481 | That's because what cmd.exe does then is not well defined, and | |
2482 | seems to be a side effect of the cmd.exe parsing of the command | |
2483 | line more than anything else. For example, try redirecting to an | |
2484 | invalid file name, as in "> foo:bar". | |
2485 | ||
2486 | There are also minor syntactic deviations from what cmd.exe does | |
2487 | in some corner cases. For example, it doesn't support the likes | |
2488 | of "> &foo" to mean redirect to file named literally "&foo"; we | |
2489 | do support that here, because that, too, sounds like some issue | |
2490 | with the cmd.exe parser. Another nicety is that we support | |
2491 | redirection targets that use file names with forward slashes, | |
2492 | something cmd.exe doesn't -- this comes in handy since GDB | |
2493 | file-name completion can be used when typing the command line for | |
2494 | the inferior. */ | |
2495 | ||
2496 | /* Support routines for redirecting standard handles of the inferior. */ | |
2497 | ||
2498 | /* Parse a single redirection spec, open/duplicate the specified | |
2499 | file/fd, and assign the appropriate value to one of the 3 standard | |
2500 | file descriptors. */ | |
2501 | static int | |
2502 | redir_open (const char *redir_string, int *inp, int *out, int *err) | |
2503 | { | |
2504 | int *fd, ref_fd = -2; | |
2505 | int mode; | |
2506 | const char *fname = redir_string + 1; | |
2507 | int rc = *redir_string; | |
2508 | ||
2509 | switch (rc) | |
2510 | { | |
2511 | case '0': | |
2512 | fname++; | |
2513 | /* FALLTHROUGH */ | |
2514 | case '<': | |
2515 | fd = inp; | |
2516 | mode = O_RDONLY; | |
2517 | break; | |
2518 | case '1': case '2': | |
2519 | fname++; | |
2520 | /* FALLTHROUGH */ | |
2521 | case '>': | |
2522 | fd = (rc == '2') ? err : out; | |
2523 | mode = O_WRONLY | O_CREAT; | |
2524 | if (*fname == '>') | |
2525 | { | |
2526 | fname++; | |
2527 | mode |= O_APPEND; | |
2528 | } | |
2529 | else | |
2530 | mode |= O_TRUNC; | |
2531 | break; | |
2532 | default: | |
2533 | return -1; | |
2534 | } | |
2535 | ||
2536 | if (*fname == '&' && '0' <= fname[1] && fname[1] <= '9') | |
2537 | { | |
2538 | /* A reference to a file descriptor. */ | |
2539 | char *fdtail; | |
2540 | ref_fd = (int) strtol (fname + 1, &fdtail, 10); | |
2541 | if (fdtail > fname + 1 && *fdtail == '\0') | |
2542 | { | |
2543 | /* Don't allow redirection when open modes are incompatible. */ | |
2544 | if ((ref_fd == 0 && (fd == out || fd == err)) | |
2545 | || ((ref_fd == 1 || ref_fd == 2) && fd == inp)) | |
2546 | { | |
2547 | errno = EPERM; | |
2548 | return -1; | |
2549 | } | |
2550 | if (ref_fd == 0) | |
2551 | ref_fd = *inp; | |
2552 | else if (ref_fd == 1) | |
2553 | ref_fd = *out; | |
2554 | else if (ref_fd == 2) | |
2555 | ref_fd = *err; | |
2556 | } | |
2557 | else | |
2558 | { | |
2559 | errno = EBADF; | |
2560 | return -1; | |
2561 | } | |
2562 | } | |
2563 | else | |
2564 | fname++; /* skip the separator space */ | |
2565 | /* If the descriptor is already open, close it. This allows | |
2566 | multiple specs of redirections for the same stream, which is | |
2567 | somewhat nonsensical, but still valid and supported by cmd.exe. | |
2568 | (But cmd.exe only opens a single file in this case, the one | |
2569 | specified by the last redirection spec on the command line.) */ | |
2570 | if (*fd >= 0) | |
2571 | _close (*fd); | |
2572 | if (ref_fd == -2) | |
2573 | { | |
2574 | *fd = _open (fname, mode, _S_IREAD | _S_IWRITE); | |
2575 | if (*fd < 0) | |
2576 | return -1; | |
2577 | } | |
2578 | else if (ref_fd == -1) | |
2579 | *fd = -1; /* reset to default destination */ | |
2580 | else | |
2581 | { | |
2582 | *fd = _dup (ref_fd); | |
2583 | if (*fd < 0) | |
2584 | return -1; | |
2585 | } | |
2586 | /* _open just sets a flag for O_APPEND, which won't be passed to the | |
2587 | inferior, so we need to actually move the file pointer. */ | |
2588 | if ((mode & O_APPEND) != 0) | |
2589 | _lseek (*fd, 0L, SEEK_END); | |
2590 | return 0; | |
2591 | } | |
2592 | ||
2593 | /* Canonicalize a single redirection spec and set up the corresponding | |
2594 | file descriptor as specified. */ | |
2595 | static int | |
2596 | redir_set_redirection (const char *s, int *inp, int *out, int *err) | |
2597 | { | |
2598 | char buf[__PMAX + 2 + 5]; /* extra space for quotes & redirection string */ | |
2599 | char *d = buf; | |
2600 | const char *start = s; | |
2601 | int quote = 0; | |
2602 | ||
2603 | *d++ = *s++; /* copy the 1st character, < or > or a digit */ | |
2604 | if ((*start == '>' || *start == '1' || *start == '2') | |
2605 | && *s == '>') | |
2606 | { | |
2607 | *d++ = *s++; | |
2608 | if (*s == '>' && *start != '>') | |
2609 | *d++ = *s++; | |
2610 | } | |
2611 | else if (*start == '0' && *s == '<') | |
2612 | *d++ = *s++; | |
2613 | /* cmd.exe recognizes "&N" only immediately after the redirection symbol. */ | |
2614 | if (*s != '&') | |
2615 | { | |
2616 | while (isspace (*s)) /* skip whitespace before file name */ | |
2617 | s++; | |
2618 | *d++ = ' '; /* separate file name with a single space */ | |
2619 | } | |
2620 | ||
2621 | /* Copy the file name. */ | |
2622 | while (*s) | |
2623 | { | |
2624 | /* Remove quoting characters from the file name in buf[]. */ | |
2625 | if (*s == '"') /* could support '..' quoting here */ | |
2626 | { | |
2627 | if (!quote) | |
2628 | quote = *s++; | |
2629 | else if (*s == quote) | |
2630 | { | |
2631 | quote = 0; | |
2632 | s++; | |
2633 | } | |
2634 | else | |
2635 | *d++ = *s++; | |
2636 | } | |
2637 | else if (*s == '\\') | |
2638 | { | |
2639 | if (s[1] == '"') /* could support '..' here */ | |
2640 | s++; | |
2641 | *d++ = *s++; | |
2642 | } | |
2643 | else if (isspace (*s) && !quote) | |
2644 | break; | |
2645 | else | |
2646 | *d++ = *s++; | |
2647 | if (d - buf >= sizeof (buf) - 1) | |
2648 | { | |
2649 | errno = ENAMETOOLONG; | |
2650 | return 0; | |
2651 | } | |
2652 | } | |
2653 | *d = '\0'; | |
2654 | ||
2655 | /* Windows doesn't allow redirection characters in file names, so we | |
2656 | can bail out early if they use them, or if there's no target file | |
2657 | name after the redirection symbol. */ | |
2658 | if (d[-1] == '>' || d[-1] == '<') | |
2659 | { | |
2660 | errno = ENOENT; | |
2661 | return 0; | |
2662 | } | |
2663 | if (redir_open (buf, inp, out, err) == 0) | |
2664 | return s - start; | |
2665 | return 0; | |
2666 | } | |
2667 | ||
2668 | /* Parse the command line for redirection specs and prepare the file | |
2669 | descriptors for the 3 standard streams accordingly. */ | |
2670 | static bool | |
2671 | redirect_inferior_handles (const char *cmd_orig, char *cmd, | |
2672 | int *inp, int *out, int *err) | |
2673 | { | |
2674 | const char *s = cmd_orig; | |
2675 | char *d = cmd; | |
2676 | int quote = 0; | |
2677 | bool retval = false; | |
2678 | ||
2679 | while (isspace (*s)) | |
2680 | *d++ = *s++; | |
2681 | ||
2682 | while (*s) | |
2683 | { | |
2684 | if (*s == '"') /* could also support '..' quoting here */ | |
2685 | { | |
2686 | if (!quote) | |
2687 | quote = *s; | |
2688 | else if (*s == quote) | |
2689 | quote = 0; | |
2690 | } | |
2691 | else if (*s == '\\') | |
2692 | { | |
2693 | if (s[1] == '"') /* escaped quote char */ | |
2694 | s++; | |
2695 | } | |
2696 | else if (!quote) | |
2697 | { | |
2698 | /* Process a single redirection candidate. */ | |
2699 | if (*s == '<' || *s == '>' | |
2700 | || ((*s == '1' || *s == '2') && s[1] == '>') | |
2701 | || (*s == '0' && s[1] == '<')) | |
2702 | { | |
2703 | int skip = redir_set_redirection (s, inp, out, err); | |
2704 | ||
2705 | if (skip <= 0) | |
2706 | return false; | |
2707 | retval = true; | |
2708 | s += skip; | |
2709 | } | |
2710 | } | |
2711 | if (*s) | |
2712 | *d++ = *s++; | |
2713 | } | |
2714 | *d = '\0'; | |
2715 | return retval; | |
2716 | } | |
2717 | #endif /* !__CYGWIN__ */ | |
2718 | ||
dc05df57 | 2719 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2720 | EXEC_FILE is the file to run. |
2721 | ALLARGS is a string containing the arguments to the program. | |
2722 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2723 | ||
f6ac5f3d PA |
2724 | void |
2725 | windows_nat_target::create_inferior (const char *exec_file, | |
2726 | const std::string &origallargs, | |
2727 | char **in_env, int from_tty) | |
24e60978 | 2728 | { |
b3c613f2 | 2729 | STARTUPINFO si; |
41b4aadc | 2730 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2731 | cygwin_buf_t real_path[__PMAX]; |
2732 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d092c5a2 | 2733 | cygwin_buf_t infcwd[__PMAX]; |
d0d0ab16 | 2734 | const char *sh; |
b3c613f2 CF |
2735 | cygwin_buf_t *toexec; |
2736 | cygwin_buf_t *cygallargs; | |
2737 | cygwin_buf_t *args; | |
b7ff339d CV |
2738 | char **old_env = NULL; |
2739 | PWCHAR w32_env; | |
d0d0ab16 | 2740 | size_t len; |
2becadee CF |
2741 | int tty; |
2742 | int ostdin, ostdout, ostderr; | |
8ba42bc5 | 2743 | #else /* !__CYGWIN__ */ |
b3c613f2 | 2744 | char shell[__PMAX]; /* Path to shell */ |
5430098f | 2745 | const char *toexec; |
8ba42bc5 EZ |
2746 | char *args, *allargs_copy; |
2747 | size_t args_len, allargs_len; | |
2748 | int fd_inp = -1, fd_out = -1, fd_err = -1; | |
2749 | HANDLE tty = INVALID_HANDLE_VALUE; | |
8ba42bc5 | 2750 | bool redirected = false; |
c93dbcba EZ |
2751 | char *w32env; |
2752 | char *temp; | |
2753 | size_t envlen; | |
2754 | int i; | |
2755 | size_t envsize; | |
2756 | char **env; | |
8ba42bc5 | 2757 | #endif /* !__CYGWIN__ */ |
096c92dd | 2758 | const char *allargs = origallargs.c_str (); |
d0d0ab16 CV |
2759 | PROCESS_INFORMATION pi; |
2760 | BOOL ret; | |
2761 | DWORD flags = 0; | |
05779d57 | 2762 | const char *inferior_tty = current_inferior ()->tty (); |
24e60978 SC |
2763 | |
2764 | if (!exec_file) | |
8a3fe4f8 | 2765 | error (_("No executable specified, use `target exec'.")); |
24e60978 | 2766 | |
d092c5a2 SDJ |
2767 | const char *inferior_cwd = get_inferior_cwd (); |
2768 | std::string expanded_infcwd; | |
2769 | if (inferior_cwd != NULL) | |
2770 | { | |
2771 | expanded_infcwd = gdb_tilde_expand (inferior_cwd); | |
2772 | /* Mirror slashes on inferior's cwd. */ | |
2773 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), | |
2774 | '/', '\\'); | |
2775 | inferior_cwd = expanded_infcwd.c_str (); | |
2776 | } | |
2777 | ||
24e60978 SC |
2778 | memset (&si, 0, sizeof (si)); |
2779 | si.cb = sizeof (si); | |
2780 | ||
d0d0ab16 CV |
2781 | if (new_group) |
2782 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2783 | ||
2784 | if (new_console) | |
cd44747c | 2785 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2786 | |
10325bc5 | 2787 | #ifdef __CYGWIN__ |
349b409f | 2788 | if (!useshell) |
dfe7f3ac | 2789 | { |
d0d0ab16 CV |
2790 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2791 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2792 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2793 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2794 | toexec = real_path; |
b3c613f2 | 2795 | #ifdef __USEWIDE |
d0d0ab16 CV |
2796 | len = mbstowcs (NULL, allargs, 0) + 1; |
2797 | if (len == (size_t) -1) | |
2798 | error (_("Error starting executable: %d"), errno); | |
2799 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2800 | mbstowcs (cygallargs, allargs, len); | |
8ba42bc5 | 2801 | #else /* !__USEWIDE */ |
60c5c021 | 2802 | cygallargs = allargs; |
b3c613f2 | 2803 | #endif |
dfe7f3ac CF |
2804 | } |
2805 | else | |
2806 | { | |
974e6844 | 2807 | sh = get_shell (); |
b3c613f2 | 2808 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2809 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2810 | #ifdef __USEWIDE |
d0d0ab16 CV |
2811 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2812 | + mbstowcs (NULL, allargs, 0) + 2; | |
2813 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2814 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2815 | #else /* !__USEWIDE */ |
08850b56 PM |
2816 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2817 | + strlen (allargs) + 2); | |
2818 | cygallargs = (char *) alloca (len); | |
2819 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2820 | #endif /* __USEWIDE */ |
dfe7f3ac | 2821 | toexec = shell; |
d0d0ab16 | 2822 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2823 | } |
b3c613f2 | 2824 | |
d092c5a2 SDJ |
2825 | if (inferior_cwd != NULL |
2826 | && cygwin_conv_path (CCP_POSIX_TO_WIN_W, inferior_cwd, | |
2827 | infcwd, strlen (inferior_cwd)) < 0) | |
2828 | error (_("Error converting inferior cwd: %d"), errno); | |
2829 | ||
b3c613f2 CF |
2830 | #ifdef __USEWIDE |
2831 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2832 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2833 | wcscpy (args, toexec); |
2834 | wcscat (args, L" "); | |
2835 | wcscat (args, cygallargs); | |
8ba42bc5 | 2836 | #else /* !__USEWIDE */ |
b3c613f2 CF |
2837 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); |
2838 | strcpy (args, toexec); | |
2839 | strcat (args, " "); | |
2840 | strcat (args, cygallargs); | |
8ba42bc5 | 2841 | #endif /* !__USEWIDE */ |
b3c613f2 | 2842 | |
b7ff339d CV |
2843 | #ifdef CW_CVT_ENV_TO_WINENV |
2844 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2845 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2846 | if (w32_env != (PWCHAR) -1) | |
2847 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2848 | else | |
2849 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
8ba42bc5 | 2850 | #endif /* CW_CVT_ENV_TO_WINENV */ |
b7ff339d CV |
2851 | { |
2852 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2853 | clear_win32_environment (environ); | |
2854 | /* Prepare the environment vars for CreateProcess. */ | |
2855 | old_env = environ; | |
2856 | environ = in_env; | |
2857 | cygwin_internal (CW_SYNC_WINENV); | |
2858 | w32_env = NULL; | |
2859 | } | |
1750a5ef | 2860 | |
05779d57 | 2861 | if (inferior_tty == nullptr) |
2becadee CF |
2862 | tty = ostdin = ostdout = ostderr = -1; |
2863 | else | |
2864 | { | |
05779d57 | 2865 | tty = open (inferior_tty, O_RDWR | O_NOCTTY); |
2becadee CF |
2866 | if (tty < 0) |
2867 | { | |
05779d57 | 2868 | print_sys_errmsg (inferior_tty, errno); |
2becadee CF |
2869 | ostdin = ostdout = ostderr = -1; |
2870 | } | |
2871 | else | |
2872 | { | |
2873 | ostdin = dup (0); | |
2874 | ostdout = dup (1); | |
2875 | ostderr = dup (2); | |
2876 | dup2 (tty, 0); | |
2877 | dup2 (tty, 1); | |
2878 | dup2 (tty, 2); | |
2879 | } | |
2880 | } | |
d0d0ab16 CV |
2881 | |
2882 | windows_init_thread_list (); | |
b3c613f2 CF |
2883 | ret = CreateProcess (0, |
2884 | args, /* command line */ | |
2885 | NULL, /* Security */ | |
2886 | NULL, /* thread */ | |
2887 | TRUE, /* inherit handles */ | |
2888 | flags, /* start flags */ | |
b7ff339d | 2889 | w32_env, /* environment */ |
d092c5a2 SDJ |
2890 | inferior_cwd != NULL ? infcwd : NULL, /* current |
2891 | directory */ | |
b3c613f2 CF |
2892 | &si, |
2893 | &pi); | |
b7ff339d CV |
2894 | if (w32_env) |
2895 | /* Just free the Win32 environment, if it could be created. */ | |
2896 | free (w32_env); | |
2897 | else | |
2898 | { | |
2899 | /* Reset all environment variables to avoid leftover on next run. */ | |
2900 | clear_win32_environment (in_env); | |
2901 | /* Restore normal GDB environment variables. */ | |
2902 | environ = old_env; | |
2903 | cygwin_internal (CW_SYNC_WINENV); | |
2904 | } | |
2905 | ||
d0d0ab16 CV |
2906 | if (tty >= 0) |
2907 | { | |
6af79d7b | 2908 | ::close (tty); |
d0d0ab16 CV |
2909 | dup2 (ostdin, 0); |
2910 | dup2 (ostdout, 1); | |
2911 | dup2 (ostderr, 2); | |
6af79d7b JT |
2912 | ::close (ostdin); |
2913 | ::close (ostdout); | |
2914 | ::close (ostderr); | |
d0d0ab16 | 2915 | } |
8ba42bc5 EZ |
2916 | #else /* !__CYGWIN__ */ |
2917 | allargs_len = strlen (allargs); | |
2918 | allargs_copy = strcpy ((char *) alloca (allargs_len + 1), allargs); | |
2919 | if (strpbrk (allargs_copy, "<>") != NULL) | |
2920 | { | |
2921 | int e = errno; | |
2922 | errno = 0; | |
2923 | redirected = | |
2924 | redirect_inferior_handles (allargs, allargs_copy, | |
2925 | &fd_inp, &fd_out, &fd_err); | |
2926 | if (errno) | |
6d91ce9a | 2927 | warning (_("Error in redirection: %s."), safe_strerror (errno)); |
8ba42bc5 EZ |
2928 | else |
2929 | errno = e; | |
2930 | allargs_len = strlen (allargs_copy); | |
2931 | } | |
2932 | /* If not all the standard streams are redirected by the command | |
05779d57 PA |
2933 | line, use INFERIOR_TTY for those which aren't. */ |
2934 | if (inferior_tty != nullptr | |
8ba42bc5 | 2935 | && !(fd_inp >= 0 && fd_out >= 0 && fd_err >= 0)) |
41b4aadc CF |
2936 | { |
2937 | SECURITY_ATTRIBUTES sa; | |
2938 | sa.nLength = sizeof(sa); | |
2939 | sa.lpSecurityDescriptor = 0; | |
2940 | sa.bInheritHandle = TRUE; | |
05779d57 | 2941 | tty = CreateFileA (inferior_tty, GENERIC_READ | GENERIC_WRITE, |
41b4aadc CF |
2942 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); |
2943 | if (tty == INVALID_HANDLE_VALUE) | |
2944 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
05779d57 | 2945 | inferior_tty, (unsigned) GetLastError ()); |
8ba42bc5 EZ |
2946 | } |
2947 | if (redirected || tty != INVALID_HANDLE_VALUE) | |
2948 | { | |
2949 | if (fd_inp >= 0) | |
2950 | si.hStdInput = (HANDLE) _get_osfhandle (fd_inp); | |
2951 | else if (tty != INVALID_HANDLE_VALUE) | |
2952 | si.hStdInput = tty; | |
41b4aadc | 2953 | else |
8ba42bc5 EZ |
2954 | si.hStdInput = GetStdHandle (STD_INPUT_HANDLE); |
2955 | if (fd_out >= 0) | |
2956 | si.hStdOutput = (HANDLE) _get_osfhandle (fd_out); | |
2957 | else if (tty != INVALID_HANDLE_VALUE) | |
2958 | si.hStdOutput = tty; | |
2959 | else | |
2960 | si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE); | |
2961 | if (fd_err >= 0) | |
2962 | si.hStdError = (HANDLE) _get_osfhandle (fd_err); | |
2963 | else if (tty != INVALID_HANDLE_VALUE) | |
2964 | si.hStdError = tty; | |
2965 | else | |
2966 | si.hStdError = GetStdHandle (STD_ERROR_HANDLE); | |
2967 | si.dwFlags |= STARTF_USESTDHANDLES; | |
41b4aadc | 2968 | } |
2becadee | 2969 | |
8ba42bc5 EZ |
2970 | toexec = exec_file; |
2971 | /* Build the command line, a space-separated list of tokens where | |
2972 | the first token is the name of the module to be executed. | |
2973 | To avoid ambiguities introduced by spaces in the module name, | |
2974 | we quote it. */ | |
2975 | args_len = strlen (toexec) + 2 /* quotes */ + allargs_len + 2; | |
2976 | args = (char *) alloca (args_len); | |
2977 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs_copy); | |
2978 | ||
2979 | flags |= DEBUG_ONLY_THIS_PROCESS; | |
2980 | ||
c93dbcba EZ |
2981 | /* CreateProcess takes the environment list as a null terminated set of |
2982 | strings (i.e. two nulls terminate the list). */ | |
2983 | ||
2984 | /* Get total size for env strings. */ | |
2985 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2986 | envlen += strlen (in_env[i]) + 1; | |
2987 | ||
2988 | envsize = sizeof (in_env[0]) * (i + 1); | |
2989 | env = (char **) alloca (envsize); | |
2990 | memcpy (env, in_env, envsize); | |
2991 | /* Windows programs expect the environment block to be sorted. */ | |
2992 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2993 | ||
0ae1c716 | 2994 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
2995 | |
2996 | /* Copy env strings into new buffer. */ | |
2997 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2998 | { | |
2999 | strcpy (temp, env[i]); | |
3000 | temp += strlen (temp) + 1; | |
3001 | } | |
3002 | ||
3003 | /* Final nil string to terminate new env. */ | |
3004 | *temp = 0; | |
3005 | ||
dc05df57 | 3006 | windows_init_thread_list (); |
d0d0ab16 CV |
3007 | ret = CreateProcessA (0, |
3008 | args, /* command line */ | |
3009 | NULL, /* Security */ | |
3010 | NULL, /* thread */ | |
3011 | TRUE, /* inherit handles */ | |
3012 | flags, /* start flags */ | |
c93dbcba | 3013 | w32env, /* environment */ |
d092c5a2 | 3014 | inferior_cwd, /* current directory */ |
d0d0ab16 CV |
3015 | &si, |
3016 | &pi); | |
41b4aadc CF |
3017 | if (tty != INVALID_HANDLE_VALUE) |
3018 | CloseHandle (tty); | |
8ba42bc5 EZ |
3019 | if (fd_inp >= 0) |
3020 | _close (fd_inp); | |
3021 | if (fd_out >= 0) | |
3022 | _close (fd_out); | |
3023 | if (fd_err >= 0) | |
3024 | _close (fd_err); | |
3025 | #endif /* !__CYGWIN__ */ | |
2becadee | 3026 | |
24e60978 | 3027 | if (!ret) |
d50a0ce2 | 3028 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 3029 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 3030 | |
46f9f931 HD |
3031 | #ifdef __x86_64__ |
3032 | BOOL wow64; | |
3033 | if (IsWow64Process (pi.hProcess, &wow64)) | |
3034 | wow64_process = wow64; | |
3035 | #endif | |
3036 | ||
c1766e7d PM |
3037 | CloseHandle (pi.hThread); |
3038 | CloseHandle (pi.hProcess); | |
3039 | ||
dfe7f3ac CF |
3040 | if (useshell && shell[0] != '\0') |
3041 | saw_create = -1; | |
3042 | else | |
3043 | saw_create = 0; | |
3044 | ||
50838d1b | 3045 | do_initial_windows_stuff (pi.dwProcessId, 0); |
d3a09475 | 3046 | |
17617f2d | 3047 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
3048 | } |
3049 | ||
f6ac5f3d PA |
3050 | void |
3051 | windows_nat_target::mourn_inferior () | |
24e60978 | 3052 | { |
17617f2d | 3053 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 3054 | x86_cleanup_dregs(); |
bf25528d CF |
3055 | if (open_process_used) |
3056 | { | |
3057 | CHECK (CloseHandle (current_process_handle)); | |
3058 | open_process_used = 0; | |
3059 | } | |
7928d571 | 3060 | siginfo_er.ExceptionCode = 0; |
f6ac5f3d | 3061 | inf_child_target::mourn_inferior (); |
24e60978 SC |
3062 | } |
3063 | ||
24e60978 | 3064 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 3065 | ^C on the controlling terminal. */ |
24e60978 | 3066 | |
f6ac5f3d PA |
3067 | void |
3068 | windows_nat_target::interrupt () | |
24e60978 | 3069 | { |
1ef980b9 | 3070 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 3071 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 3072 | registers_changed (); /* refresh register state */ |
24e60978 SC |
3073 | } |
3074 | ||
44f38867 PA |
3075 | /* Helper for windows_xfer_partial that handles memory transfers. |
3076 | Arguments are like target_xfer_partial. */ | |
3077 | ||
9b409511 | 3078 | static enum target_xfer_status |
44f38867 | 3079 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 3080 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 3081 | { |
5732a500 | 3082 | SIZE_T done = 0; |
44f38867 | 3083 | BOOL success; |
9e52adf9 | 3084 | DWORD lasterror = 0; |
44f38867 PA |
3085 | |
3086 | if (writebuf != NULL) | |
24e60978 | 3087 | { |
a2388568 | 3088 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 3089 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3090 | success = WriteProcessMemory (current_process_handle, |
3091 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
3092 | len, &done); | |
9e52adf9 | 3093 | if (!success) |
7126d5c8 | 3094 | lasterror = GetLastError (); |
2b008701 | 3095 | FlushInstructionCache (current_process_handle, |
2c647436 | 3096 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
3097 | } |
3098 | else | |
3099 | { | |
a2388568 | 3100 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 3101 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3102 | success = ReadProcessMemory (current_process_handle, |
3103 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
3104 | len, &done); | |
9e52adf9 | 3105 | if (!success) |
7126d5c8 | 3106 | lasterror = GetLastError (); |
24e60978 | 3107 | } |
9b409511 | 3108 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 3109 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 3110 | return TARGET_XFER_OK; |
9e52adf9 | 3111 | else |
9b409511 | 3112 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
3113 | } |
3114 | ||
f6ac5f3d PA |
3115 | void |
3116 | windows_nat_target::kill () | |
24e60978 | 3117 | { |
3cee93ac CF |
3118 | CHECK (TerminateProcess (current_process_handle, 0)); |
3119 | ||
b5edcb45 ILT |
3120 | for (;;) |
3121 | { | |
17617f2d | 3122 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 3123 | break; |
0a4afda3 | 3124 | if (!wait_for_debug_event (¤t_event, INFINITE)) |
b5edcb45 | 3125 | break; |
3cee93ac | 3126 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
3127 | break; |
3128 | } | |
3129 | ||
9eee20eb | 3130 | target_mourn_inferior (inferior_ptid); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
3131 | } |
3132 | ||
f6ac5f3d PA |
3133 | void |
3134 | windows_nat_target::close () | |
24e60978 | 3135 | { |
dc05df57 | 3136 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
e99b03dc | 3137 | inferior_ptid.pid ())); |
24e60978 | 3138 | } |
1ef980b9 | 3139 | |
581e13c1 | 3140 | /* Convert pid to printable format. */ |
a068643d | 3141 | std::string |
f6ac5f3d | 3142 | windows_nat_target::pid_to_str (ptid_t ptid) |
24e60978 | 3143 | { |
7c7411bc TT |
3144 | if (ptid.lwp () != 0) |
3145 | return string_printf ("Thread %d.0x%lx", ptid.pid (), ptid.lwp ()); | |
2dc38344 PA |
3146 | |
3147 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
3148 | } |
3149 | ||
9b409511 | 3150 | static enum target_xfer_status |
dc05df57 | 3151 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
3152 | enum target_object object, const char *annex, |
3153 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
3154 | ULONGEST offset, ULONGEST len, | |
3155 | ULONGEST *xfered_len) | |
3cb8e7f6 | 3156 | { |
de1b3c3d PA |
3157 | struct obstack obstack; |
3158 | const char *buf; | |
3159 | LONGEST len_avail; | |
3cb8e7f6 | 3160 | struct so_list *so; |
3cb8e7f6 | 3161 | |
de1b3c3d | 3162 | if (writebuf) |
2ed4b548 | 3163 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 3164 | |
de1b3c3d PA |
3165 | obstack_init (&obstack); |
3166 | obstack_grow_str (&obstack, "<library-list>\n"); | |
3167 | for (so = solib_start.next; so; so = so->next) | |
d0e449a1 SM |
3168 | { |
3169 | lm_info_windows *li = (lm_info_windows *) so->lm_info; | |
3170 | ||
3171 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) | |
3172 | (uintptr_t) li->load_addr, | |
c162ed3e | 3173 | &li->text_offset, |
d0e449a1 SM |
3174 | target_gdbarch (), &obstack); |
3175 | } | |
de1b3c3d | 3176 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 3177 | |
0ae1c716 | 3178 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
3179 | len_avail = strlen (buf); |
3180 | if (offset >= len_avail) | |
49dc7f4b PM |
3181 | len= 0; |
3182 | else | |
3183 | { | |
3184 | if (len > len_avail - offset) | |
3185 | len = len_avail - offset; | |
3186 | memcpy (readbuf, buf + offset, len); | |
3187 | } | |
3cb8e7f6 | 3188 | |
de1b3c3d | 3189 | obstack_free (&obstack, NULL); |
9b409511 | 3190 | *xfered_len = (ULONGEST) len; |
0837c976 | 3191 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
3192 | } |
3193 | ||
7928d571 HD |
3194 | /* Helper for windows_nat_target::xfer_partial that handles signal info. */ |
3195 | ||
3196 | static enum target_xfer_status | |
3197 | windows_xfer_siginfo (gdb_byte *readbuf, ULONGEST offset, ULONGEST len, | |
3198 | ULONGEST *xfered_len) | |
3199 | { | |
46f9f931 HD |
3200 | char *buf = (char *) &siginfo_er; |
3201 | size_t bufsize = sizeof (siginfo_er); | |
3202 | ||
3203 | #ifdef __x86_64__ | |
3204 | EXCEPTION_RECORD32 er32; | |
3205 | if (wow64_process) | |
3206 | { | |
3207 | buf = (char *) &er32; | |
3208 | bufsize = sizeof (er32); | |
3209 | ||
3210 | er32.ExceptionCode = siginfo_er.ExceptionCode; | |
3211 | er32.ExceptionFlags = siginfo_er.ExceptionFlags; | |
3212 | er32.ExceptionRecord = (uintptr_t) siginfo_er.ExceptionRecord; | |
3213 | er32.ExceptionAddress = (uintptr_t) siginfo_er.ExceptionAddress; | |
3214 | er32.NumberParameters = siginfo_er.NumberParameters; | |
3215 | int i; | |
3216 | for (i = 0; i < EXCEPTION_MAXIMUM_PARAMETERS; i++) | |
3217 | er32.ExceptionInformation[i] = siginfo_er.ExceptionInformation[i]; | |
3218 | } | |
3219 | #endif | |
3220 | ||
7928d571 HD |
3221 | if (siginfo_er.ExceptionCode == 0) |
3222 | return TARGET_XFER_E_IO; | |
3223 | ||
3224 | if (readbuf == nullptr) | |
3225 | return TARGET_XFER_E_IO; | |
3226 | ||
46f9f931 | 3227 | if (offset > bufsize) |
7928d571 HD |
3228 | return TARGET_XFER_E_IO; |
3229 | ||
46f9f931 HD |
3230 | if (offset + len > bufsize) |
3231 | len = bufsize - offset; | |
7928d571 | 3232 | |
46f9f931 | 3233 | memcpy (readbuf, buf + offset, len); |
7928d571 HD |
3234 | *xfered_len = len; |
3235 | ||
3236 | return TARGET_XFER_OK; | |
3237 | } | |
3238 | ||
f6ac5f3d PA |
3239 | enum target_xfer_status |
3240 | windows_nat_target::xfer_partial (enum target_object object, | |
3241 | const char *annex, gdb_byte *readbuf, | |
2f4f025f TT |
3242 | const gdb_byte *writebuf, ULONGEST offset, |
3243 | ULONGEST len, ULONGEST *xfered_len) | |
3cb8e7f6 | 3244 | { |
de1b3c3d | 3245 | switch (object) |
3cb8e7f6 | 3246 | { |
de1b3c3d | 3247 | case TARGET_OBJECT_MEMORY: |
9b409511 | 3248 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
3249 | |
3250 | case TARGET_OBJECT_LIBRARIES: | |
f6ac5f3d | 3251 | return windows_xfer_shared_libraries (this, object, annex, readbuf, |
9b409511 | 3252 | writebuf, offset, len, xfered_len); |
3929abe9 | 3253 | |
7928d571 HD |
3254 | case TARGET_OBJECT_SIGNAL_INFO: |
3255 | return windows_xfer_siginfo (readbuf, offset, len, xfered_len); | |
3256 | ||
de1b3c3d | 3257 | default: |
2f4f025f | 3258 | if (beneath () == NULL) |
178d6a63 JB |
3259 | { |
3260 | /* This can happen when requesting the transfer of unsupported | |
3261 | objects before a program has been started (and therefore | |
3262 | with the current_target having no target beneath). */ | |
3263 | return TARGET_XFER_E_IO; | |
3264 | } | |
2f4f025f TT |
3265 | return beneath ()->xfer_partial (object, annex, |
3266 | readbuf, writebuf, offset, len, | |
3267 | xfered_len); | |
3929abe9 | 3268 | } |
02c5aecd CF |
3269 | } |
3270 | ||
711e434b PM |
3271 | /* Provide thread local base, i.e. Thread Information Block address. |
3272 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
3273 | ||
57810aa7 | 3274 | bool |
f6ac5f3d | 3275 | windows_nat_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) |
711e434b | 3276 | { |
876d1cd7 | 3277 | windows_thread_info *th; |
711e434b | 3278 | |
28688adf | 3279 | th = thread_rec (ptid, DONT_INVALIDATE_CONTEXT); |
711e434b | 3280 | if (th == NULL) |
57810aa7 | 3281 | return false; |
711e434b PM |
3282 | |
3283 | if (addr != NULL) | |
3284 | *addr = th->thread_local_base; | |
3285 | ||
57810aa7 | 3286 | return true; |
711e434b PM |
3287 | } |
3288 | ||
f6ac5f3d PA |
3289 | ptid_t |
3290 | windows_nat_target::get_ada_task_ptid (long lwp, long thread) | |
1e2f1c5c | 3291 | { |
7c7411bc | 3292 | return ptid_t (inferior_ptid.pid (), lwp, 0); |
1e2f1c5c JB |
3293 | } |
3294 | ||
24cdb46e РИ |
3295 | /* Implementation of the to_thread_name method. */ |
3296 | ||
f6ac5f3d PA |
3297 | const char * |
3298 | windows_nat_target::thread_name (struct thread_info *thr) | |
24cdb46e | 3299 | { |
28688adf | 3300 | return thread_rec (thr->ptid, DONT_INVALIDATE_CONTEXT)->name.get (); |
24cdb46e РИ |
3301 | } |
3302 | ||
24e60978 | 3303 | |
6c265988 | 3304 | void _initialize_windows_nat (); |
24e60978 | 3305 | void |
6c265988 | 3306 | _initialize_windows_nat () |
24e60978 | 3307 | { |
df7e5265 GB |
3308 | x86_dr_low.set_control = cygwin_set_dr7; |
3309 | x86_dr_low.set_addr = cygwin_set_dr; | |
3310 | x86_dr_low.get_addr = cygwin_get_dr; | |
3311 | x86_dr_low.get_status = cygwin_get_dr6; | |
3312 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 3313 | |
df7e5265 GB |
3314 | /* x86_dr_low.debug_register_length field is set by |
3315 | calling x86_set_debug_register_length function | |
51a9c8c5 | 3316 | in processor windows specific native file. */ |
fa58ee11 | 3317 | |
d9f719f1 | 3318 | add_inf_child_target (&the_windows_nat_target); |
1ef980b9 | 3319 | |
d0d0ab16 CV |
3320 | #ifdef __CYGWIN__ |
3321 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
3322 | #endif | |
3323 | ||
463888ab РИ |
3324 | add_com ("signal-event", class_run, signal_event_command, _("\ |
3325 | Signal a crashed process with event ID, to allow its debugging.\n\ | |
3326 | This command is needed in support of setting up GDB as JIT debugger on \ | |
3327 | MS-Windows. The command should be invoked from the GDB command line using \ | |
3328 | the '-ex' command-line option. The ID of the event that blocks the \ | |
3329 | crashed process will be supplied by the Windows JIT debugging mechanism.")); | |
3330 | ||
10325bc5 | 3331 | #ifdef __CYGWIN__ |
5bf193a2 AC |
3332 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
3333 | Set use of shell to start subprocess."), _("\ | |
3334 | Show use of shell to start subprocess."), NULL, | |
3335 | NULL, | |
3336 | NULL, /* FIXME: i18n: */ | |
3337 | &setlist, &showlist); | |
3338 | ||
581e13c1 MS |
3339 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
3340 | &cygwin_exceptions, _("\ | |
09280ddf CF |
3341 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
3342 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
3343 | NULL, | |
3344 | NULL, /* FIXME: i18n: */ | |
3345 | &setlist, &showlist); | |
10325bc5 | 3346 | #endif |
09280ddf | 3347 | |
5bf193a2 AC |
3348 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
3349 | Set creation of new console when creating child process."), _("\ | |
3350 | Show creation of new console when creating child process."), NULL, | |
3351 | NULL, | |
3352 | NULL, /* FIXME: i18n: */ | |
3353 | &setlist, &showlist); | |
3354 | ||
3355 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
3356 | Set creation of new group when creating child process."), _("\ | |
3357 | Show creation of new group when creating child process."), NULL, | |
3358 | NULL, | |
3359 | NULL, /* FIXME: i18n: */ | |
3360 | &setlist, &showlist); | |
3361 | ||
3362 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
3363 | Set whether to display execution in child process."), _("\ | |
3364 | Show whether to display execution in child process."), NULL, | |
3365 | NULL, | |
3366 | NULL, /* FIXME: i18n: */ | |
3367 | &setlist, &showlist); | |
3368 | ||
3369 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
3370 | Set whether to display kernel events in child process."), _("\ | |
3371 | Show whether to display kernel events in child process."), NULL, | |
3372 | NULL, | |
3373 | NULL, /* FIXME: i18n: */ | |
3374 | &setlist, &showlist); | |
3375 | ||
3376 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
3377 | Set whether to display memory accesses in child process."), _("\ | |
3378 | Show whether to display memory accesses in child process."), NULL, | |
3379 | NULL, | |
3380 | NULL, /* FIXME: i18n: */ | |
3381 | &setlist, &showlist); | |
3382 | ||
3383 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
3384 | &debug_exceptions, _("\ | |
3385 | Set whether to display kernel exceptions in child process."), _("\ | |
3386 | Show whether to display kernel exceptions in child process."), NULL, | |
3387 | NULL, | |
3388 | NULL, /* FIXME: i18n: */ | |
3389 | &setlist, &showlist); | |
1ef980b9 | 3390 | |
711e434b | 3391 | init_w32_command_list (); |
c1748f97 PM |
3392 | |
3393 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 3394 | _("Display selectors infos."), |
c1748f97 | 3395 | &info_w32_cmdlist); |
24e60978 | 3396 | } |
3cee93ac | 3397 | |
fa4ba8da PM |
3398 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
3399 | ||
3400 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
3401 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 3402 | actually set up when windows_continue is called. */ |
9bb9e8ad | 3403 | static void |
fa4ba8da PM |
3404 | cygwin_set_dr (int i, CORE_ADDR addr) |
3405 | { | |
3406 | if (i < 0 || i > 3) | |
3407 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3408 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 3409 | dr[i] = addr; |
fa4ba8da PM |
3410 | debug_registers_changed = 1; |
3411 | debug_registers_used = 1; | |
3412 | } | |
3413 | ||
3414 | /* Pass the value VAL to the inferior in the DR7 debug control | |
3415 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 3416 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
3417 | static void |
3418 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 3419 | { |
9bb9e8ad | 3420 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
3421 | debug_registers_changed = 1; |
3422 | debug_registers_used = 1; | |
3423 | } | |
3424 | ||
7b50312a PA |
3425 | /* Get the value of debug register I from the inferior. */ |
3426 | ||
3427 | static CORE_ADDR | |
3428 | cygwin_get_dr (int i) | |
3429 | { | |
3430 | return dr[i]; | |
3431 | } | |
3432 | ||
fa4ba8da PM |
3433 | /* Get the value of the DR6 debug status register from the inferior. |
3434 | Here we just return the value stored in dr[6] | |
3435 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 3436 | static unsigned long |
fa4ba8da PM |
3437 | cygwin_get_dr6 (void) |
3438 | { | |
9bb9e8ad | 3439 | return (unsigned long) dr[6]; |
fa4ba8da PM |
3440 | } |
3441 | ||
7b50312a PA |
3442 | /* Get the value of the DR7 debug status register from the inferior. |
3443 | Here we just return the value stored in dr[7] by the last call to | |
3444 | thread_rec for current_event.dwThreadId id. */ | |
3445 | ||
3446 | static unsigned long | |
3447 | cygwin_get_dr7 (void) | |
3448 | { | |
3449 | return (unsigned long) dr[7]; | |
3450 | } | |
3451 | ||
2dc38344 | 3452 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 3453 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 3454 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
f6ac5f3d | 3455 | |
57810aa7 | 3456 | bool |
f6ac5f3d | 3457 | windows_nat_target::thread_alive (ptid_t ptid) |
3cee93ac | 3458 | { |
7c7411bc | 3459 | gdb_assert (ptid.lwp () != 0); |
39f77062 | 3460 | |
28688adf | 3461 | return (WaitForSingleObject (thread_rec (ptid, DONT_INVALIDATE_CONTEXT)->h, 0) |
8e61ebec | 3462 | != WAIT_OBJECT_0); |
3cee93ac CF |
3463 | } |
3464 | ||
6c265988 | 3465 | void _initialize_check_for_gdb_ini (); |
2a3d5645 | 3466 | void |
6c265988 | 3467 | _initialize_check_for_gdb_ini () |
2a3d5645 CF |
3468 | { |
3469 | char *homedir; | |
3470 | if (inhibit_gdbinit) | |
3471 | return; | |
3472 | ||
3473 | homedir = getenv ("HOME"); | |
3474 | if (homedir) | |
3475 | { | |
3476 | char *p; | |
3477 | char *oldini = (char *) alloca (strlen (homedir) + | |
1270fac6 | 3478 | sizeof ("gdb.ini") + 1); |
2a3d5645 CF |
3479 | strcpy (oldini, homedir); |
3480 | p = strchr (oldini, '\0'); | |
0ba1096a | 3481 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
3482 | *p++ = '/'; |
3483 | strcpy (p, "gdb.ini"); | |
3484 | if (access (oldini, 0) == 0) | |
3485 | { | |
3486 | int len = strlen (oldini); | |
1270fac6 | 3487 | char *newini = (char *) alloca (len + 2); |
08850b56 | 3488 | |
1270fac6 | 3489 | xsnprintf (newini, len + 2, "%.*s.gdbinit", |
08850b56 | 3490 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 3491 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
3492 | } |
3493 | } | |
3494 | } | |
33605d39 | 3495 | |
2b008701 | 3496 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 3497 | these functions could not be found. */ |
2b008701 CF |
3498 | static BOOL WINAPI |
3499 | bad_DebugActiveProcessStop (DWORD w) | |
3500 | { | |
3501 | return FALSE; | |
3502 | } | |
3503 | static BOOL WINAPI | |
3504 | bad_DebugBreakProcess (HANDLE w) | |
3505 | { | |
3506 | return FALSE; | |
3507 | } | |
3508 | static BOOL WINAPI | |
3509 | bad_DebugSetProcessKillOnExit (BOOL w) | |
3510 | { | |
3511 | return FALSE; | |
3512 | } | |
3513 | static BOOL WINAPI | |
3514 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
3515 | { | |
3516 | return FALSE; | |
3517 | } | |
b3c613f2 CF |
3518 | |
3519 | #ifdef __USEWIDE | |
2b008701 | 3520 | static DWORD WINAPI |
b3c613f2 | 3521 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
3522 | { |
3523 | return 0; | |
3524 | } | |
d0d0ab16 CV |
3525 | #else |
3526 | static DWORD WINAPI | |
b3c613f2 | 3527 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
3528 | { |
3529 | return 0; | |
3530 | } | |
3531 | #endif | |
b3c613f2 | 3532 | |
2b008701 CF |
3533 | static BOOL WINAPI |
3534 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
3535 | { | |
3536 | return FALSE; | |
3537 | } | |
3538 | ||
418c6cb3 CF |
3539 | static BOOL WINAPI |
3540 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
3541 | { | |
3542 | return FALSE; | |
3543 | } | |
3544 | ||
cd44747c PM |
3545 | static BOOL WINAPI |
3546 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
3547 | { | |
3548 | f->nFont = 0; | |
3549 | return 1; | |
3550 | } | |
3551 | static COORD WINAPI | |
3552 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
3553 | { | |
3554 | COORD size; | |
3555 | size.X = 8; | |
3556 | size.Y = 12; | |
3557 | return size; | |
3558 | } | |
3559 | ||
2b008701 | 3560 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 3561 | of Windows. */ |
d603d4b3 | 3562 | |
6c265988 | 3563 | void _initialize_loadable (); |
33605d39 | 3564 | void |
6c265988 | 3565 | _initialize_loadable () |
33605d39 | 3566 | { |
2b008701 CF |
3567 | HMODULE hm = NULL; |
3568 | ||
43499ea3 PA |
3569 | #define GPA(m, func) \ |
3570 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
3571 | ||
2b008701 CF |
3572 | hm = LoadLibrary ("kernel32.dll"); |
3573 | if (hm) | |
33605d39 | 3574 | { |
43499ea3 PA |
3575 | GPA (hm, DebugActiveProcessStop); |
3576 | GPA (hm, DebugBreakProcess); | |
3577 | GPA (hm, DebugSetProcessKillOnExit); | |
3578 | GPA (hm, GetConsoleFontSize); | |
3579 | GPA (hm, DebugActiveProcessStop); | |
3580 | GPA (hm, GetCurrentConsoleFont); | |
46f9f931 HD |
3581 | #ifdef __x86_64__ |
3582 | GPA (hm, Wow64SuspendThread); | |
3583 | GPA (hm, Wow64GetThreadContext); | |
3584 | GPA (hm, Wow64SetThreadContext); | |
3585 | GPA (hm, Wow64GetThreadSelectorEntry); | |
3586 | #endif | |
2b008701 | 3587 | } |
33605d39 | 3588 | |
2b008701 | 3589 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 3590 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
3591 | if (!DebugBreakProcess) |
3592 | DebugBreakProcess = bad_DebugBreakProcess; | |
3593 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 3594 | { |
b3c613f2 CF |
3595 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
3596 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 3597 | } |
cd44747c PM |
3598 | if (!GetConsoleFontSize) |
3599 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
3600 | if (!GetCurrentConsoleFont) | |
3601 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 3602 | |
2b008701 | 3603 | /* Load optional functions used for retrieving filename information |
581e13c1 | 3604 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
3605 | hm = LoadLibrary ("psapi.dll"); |
3606 | if (hm) | |
3607 | { | |
43499ea3 | 3608 | GPA (hm, EnumProcessModules); |
46f9f931 HD |
3609 | #ifdef __x86_64__ |
3610 | GPA (hm, EnumProcessModulesEx); | |
3611 | #endif | |
43499ea3 | 3612 | GPA (hm, GetModuleInformation); |
aec47d1d JB |
3613 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
3614 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
3615 | } |
3616 | ||
b3c613f2 | 3617 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
3618 | { |
3619 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 3620 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
3621 | EnumProcessModules = bad_EnumProcessModules; |
3622 | GetModuleInformation = bad_GetModuleInformation; | |
3623 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
3624 | /* This will probably fail on Windows 9x/Me. Let the user know |
3625 | that we're missing some functionality. */ | |
3626 | warning(_("\ | |
3627 | cannot automatically find executable file or library to read symbols.\n\ | |
3628 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
3629 | } |
3630 | ||
3631 | hm = LoadLibrary ("advapi32.dll"); | |
3632 | if (hm) | |
3633 | { | |
43499ea3 PA |
3634 | GPA (hm, OpenProcessToken); |
3635 | GPA (hm, LookupPrivilegeValueA); | |
3636 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 3637 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
3638 | else is needed. */ |
3639 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
3640 | || !AdjustTokenPrivileges) | |
b3c613f2 | 3641 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 3642 | } |
43499ea3 PA |
3643 | |
3644 | #undef GPA | |
33605d39 | 3645 | } |