Commit | Line | Data |
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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
b811d2c2 | 3 | Copyright (C) 1995-2020 Free Software Foundation, Inc. |
0a65a603 | 4 | |
e6433c28 | 5 | Contributed by Cygnus Solutions, A Red Hat Company. |
e88c49c3 | 6 | |
24e60978 SC |
7 | This file is part of GDB. |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
24e60978 SC |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
a9762ec7 | 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
24e60978 SC |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
24e60978 | 21 | |
dfe7f3ac | 22 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
24e60978 SC |
23 | |
24 | #include "defs.h" | |
25 | #include "frame.h" /* required by inferior.h */ | |
26 | #include "inferior.h" | |
45741a9c | 27 | #include "infrun.h" |
24e60978 | 28 | #include "target.h" |
24e60978 SC |
29 | #include "gdbcore.h" |
30 | #include "command.h" | |
fa58ee11 | 31 | #include "completer.h" |
4e052eda | 32 | #include "regcache.h" |
2a3d5645 | 33 | #include "top.h" |
403d9909 CF |
34 | #include <signal.h> |
35 | #include <sys/types.h> | |
36 | #include <fcntl.h> | |
403d9909 CF |
37 | #include <windows.h> |
38 | #include <imagehlp.h> | |
2b008701 | 39 | #include <psapi.h> |
10325bc5 | 40 | #ifdef __CYGWIN__ |
b7ff339d | 41 | #include <wchar.h> |
403d9909 | 42 | #include <sys/cygwin.h> |
b7ff339d | 43 | #include <cygwin/version.h> |
10325bc5 | 44 | #endif |
a1b85d28 | 45 | #include <algorithm> |
93366324 | 46 | #include <vector> |
cad9cd60 | 47 | |
0ba1096a | 48 | #include "filenames.h" |
1ef980b9 SC |
49 | #include "symfile.h" |
50 | #include "objfiles.h" | |
92107356 | 51 | #include "gdb_bfd.h" |
de1b3c3d | 52 | #include "gdb_obstack.h" |
fdfa3315 | 53 | #include "gdbthread.h" |
24e60978 | 54 | #include "gdbcmd.h" |
1e37c281 | 55 | #include <unistd.h> |
4646aa9d | 56 | #include "exec.h" |
3ee6f623 | 57 | #include "solist.h" |
3cb8e7f6 | 58 | #include "solib.h" |
de1b3c3d | 59 | #include "xml-support.h" |
463888ab | 60 | #include "inttypes.h" |
24e60978 | 61 | |
6c7de422 MK |
62 | #include "i386-tdep.h" |
63 | #include "i387-tdep.h" | |
64 | ||
31b060a2 CF |
65 | #include "windows-tdep.h" |
66 | #include "windows-nat.h" | |
df7e5265 | 67 | #include "x86-nat.h" |
ecc13e53 | 68 | #include "complaints.h" |
51a9c8c5 | 69 | #include "inf-child.h" |
268a13a5 TT |
70 | #include "gdbsupport/gdb_tilde_expand.h" |
71 | #include "gdbsupport/pathstuff.h" | |
559e7e50 | 72 | #include "gdbsupport/gdb_wait.h" |
ae1f8880 | 73 | #include "nat/windows-nat.h" |
de1b3c3d | 74 | |
4834dad0 TT |
75 | using namespace windows_nat; |
76 | ||
418c6cb3 | 77 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
78 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
79 | #define DebugBreakProcess dyn_DebugBreakProcess | |
80 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
81 | #define EnumProcessModules dyn_EnumProcessModules | |
46f9f931 | 82 | #define EnumProcessModulesEx dyn_EnumProcessModulesEx |
2b008701 | 83 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
84 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
85 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
86 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
87 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
46f9f931 HD |
88 | #define Wow64SuspendThread dyn_Wow64SuspendThread |
89 | #define Wow64GetThreadContext dyn_Wow64GetThreadContext | |
90 | #define Wow64SetThreadContext dyn_Wow64SetThreadContext | |
91 | #define Wow64GetThreadSelectorEntry dyn_Wow64GetThreadSelectorEntry | |
2b008701 | 92 | |
43499ea3 PA |
93 | typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL, |
94 | PTOKEN_PRIVILEGES, | |
95 | DWORD, PTOKEN_PRIVILEGES, | |
96 | PDWORD); | |
97 | static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges; | |
98 | ||
99 | typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD); | |
100 | static DebugActiveProcessStop_ftype *DebugActiveProcessStop; | |
101 | ||
102 | typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE); | |
103 | static DebugBreakProcess_ftype *DebugBreakProcess; | |
104 | ||
105 | typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL); | |
106 | static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit; | |
107 | ||
108 | typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD, | |
109 | LPDWORD); | |
110 | static EnumProcessModules_ftype *EnumProcessModules; | |
111 | ||
46f9f931 HD |
112 | #ifdef __x86_64__ |
113 | typedef BOOL WINAPI (EnumProcessModulesEx_ftype) (HANDLE, HMODULE *, DWORD, | |
114 | LPDWORD, DWORD); | |
115 | static EnumProcessModulesEx_ftype *EnumProcessModulesEx; | |
116 | #endif | |
117 | ||
43499ea3 PA |
118 | typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE, |
119 | LPMODULEINFO, DWORD); | |
120 | static GetModuleInformation_ftype *GetModuleInformation; | |
121 | ||
122 | typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID); | |
123 | static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA; | |
124 | ||
125 | typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE); | |
126 | static OpenProcessToken_ftype *OpenProcessToken; | |
127 | ||
128 | typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL, | |
129 | CONSOLE_FONT_INFO *); | |
130 | static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont; | |
131 | ||
132 | typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD); | |
133 | static GetConsoleFontSize_ftype *GetConsoleFontSize; | |
2b008701 | 134 | |
46f9f931 HD |
135 | #ifdef __x86_64__ |
136 | typedef DWORD WINAPI (Wow64SuspendThread_ftype) (HANDLE); | |
137 | static Wow64SuspendThread_ftype *Wow64SuspendThread; | |
138 | ||
139 | typedef BOOL WINAPI (Wow64GetThreadContext_ftype) (HANDLE, PWOW64_CONTEXT); | |
140 | static Wow64GetThreadContext_ftype *Wow64GetThreadContext; | |
141 | ||
142 | typedef BOOL WINAPI (Wow64SetThreadContext_ftype) (HANDLE, | |
143 | const WOW64_CONTEXT *); | |
144 | static Wow64SetThreadContext_ftype *Wow64SetThreadContext; | |
145 | ||
146 | typedef BOOL WINAPI (Wow64GetThreadSelectorEntry_ftype) (HANDLE, DWORD, | |
147 | PLDT_ENTRY); | |
148 | static Wow64GetThreadSelectorEntry_ftype *Wow64GetThreadSelectorEntry; | |
149 | #endif | |
150 | ||
b3c613f2 CF |
151 | #undef STARTUPINFO |
152 | #undef CreateProcess | |
153 | #undef GetModuleFileNameEx | |
154 | ||
155 | #ifndef __CYGWIN__ | |
156 | # define __PMAX (MAX_PATH + 1) | |
43499ea3 PA |
157 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD); |
158 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
159 | # define STARTUPINFO STARTUPINFOA |
160 | # define CreateProcess CreateProcessA | |
161 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
162 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
163 | #else | |
164 | # define __PMAX PATH_MAX | |
581e13c1 | 165 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
166 | static CORE_ADDR cygwin_load_start; |
167 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
168 | # define __USEWIDE |
169 | typedef wchar_t cygwin_buf_t; | |
43499ea3 PA |
170 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, |
171 | LPWSTR, DWORD); | |
172 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
173 | # define STARTUPINFO STARTUPINFOW |
174 | # define CreateProcess CreateProcessW | |
175 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
176 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 177 | #endif |
a244bdca | 178 | |
581e13c1 MS |
179 | static int have_saved_context; /* True if we've saved context from a |
180 | cygwin signal. */ | |
15766370 | 181 | #ifdef __CYGWIN__ |
85102364 | 182 | static CONTEXT saved_context; /* Contains the saved context from a |
581e13c1 | 183 | cygwin signal. */ |
15766370 | 184 | #endif |
a244bdca | 185 | |
0714f9bf SS |
186 | /* If we're not using the old Cygwin header file set, define the |
187 | following which never should have been in the generic Win32 API | |
581e13c1 | 188 | headers in the first place since they were our own invention... */ |
0714f9bf | 189 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 190 | enum |
8e860359 CF |
191 | { |
192 | FLAG_TRACE_BIT = 0x100, | |
8e860359 | 193 | }; |
0714f9bf SS |
194 | #endif |
195 | ||
5851ab76 JB |
196 | #ifndef CONTEXT_EXTENDED_REGISTERS |
197 | /* This macro is only defined on ia32. It only makes sense on this target, | |
198 | so define it as zero if not already defined. */ | |
199 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
200 | #endif | |
201 | ||
f0666312 JT |
202 | #define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \ |
203 | | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \ | |
204 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 205 | |
41b4aadc | 206 | static uintptr_t dr[8]; |
87a45c96 CF |
207 | static int debug_registers_changed; |
208 | static int debug_registers_used; | |
16d905e2 CF |
209 | |
210 | static int windows_initialization_done; | |
6537bb24 | 211 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 212 | |
3cee93ac | 213 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 214 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
215 | #ifndef _CYGWIN_SIGNAL_STRING |
216 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
217 | #endif | |
3cee93ac | 218 | |
29fe111d | 219 | #define CHECK(x) check (x, __FILE__,__LINE__) |
ce127a96 TT |
220 | #define DEBUG_EXEC(x) if (debug_exec) debug_printf x |
221 | #define DEBUG_EVENTS(x) if (debug_events) debug_printf x | |
222 | #define DEBUG_MEM(x) if (debug_memory) debug_printf x | |
223 | #define DEBUG_EXCEPT(x) if (debug_exceptions) debug_printf x | |
24e60978 | 224 | |
9bb9e8ad PM |
225 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
226 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 227 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 228 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 229 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 230 | |
93366324 | 231 | static std::vector<windows_thread_info *> thread_list; |
24e60978 | 232 | |
581e13c1 | 233 | /* Counts of things. */ |
dfe7f3ac | 234 | static int saw_create; |
bf25528d | 235 | static int open_process_used = 0; |
46f9f931 HD |
236 | #ifdef __x86_64__ |
237 | static bool wow64_process = false; | |
46f9f931 | 238 | #endif |
24e60978 | 239 | |
581e13c1 | 240 | /* User options. */ |
491144b5 | 241 | static bool new_console = false; |
10325bc5 | 242 | #ifdef __CYGWIN__ |
491144b5 | 243 | static bool cygwin_exceptions = false; |
10325bc5 | 244 | #endif |
491144b5 CB |
245 | static bool new_group = true; |
246 | static bool debug_exec = false; /* show execution */ | |
247 | static bool debug_events = false; /* show events from kernel */ | |
248 | static bool debug_memory = false; /* show target memory accesses */ | |
249 | static bool debug_exceptions = false; /* show target exceptions */ | |
250 | static bool useshell = false; /* use shell for subprocesses */ | |
dfe7f3ac | 251 | |
7e63b4e4 | 252 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 253 | in the windows exception context vector. |
24e60978 | 254 | |
3cee93ac | 255 | It also contains the bit mask needed to load the register in question. |
24e60978 | 256 | |
7e63b4e4 JB |
257 | The contents of this table can only be computed by the units |
258 | that provide CPU-specific support for Windows native debugging. | |
259 | These units should set the table by calling | |
dc05df57 | 260 | windows_set_context_register_offsets. |
7e63b4e4 | 261 | |
24e60978 SC |
262 | One day we could read a reg, we could inspect the context we |
263 | already have loaded, if it doesn't have the bit set that we need, | |
264 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 265 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
266 | write a register, first we have to ensure that the context contains |
267 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 268 | out bit. */ |
24e60978 | 269 | |
7e63b4e4 | 270 | static const int *mappings; |
d3a09475 | 271 | |
d40dc7a8 JB |
272 | /* The function to use in order to determine whether a register is |
273 | a segment register or not. */ | |
274 | static segment_register_p_ftype *segment_register_p; | |
275 | ||
73c13fe6 TT |
276 | /* See windows_nat_target::resume to understand why this is commented |
277 | out. */ | |
278 | #if 0 | |
24e60978 | 279 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 280 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
281 | |
282 | struct xlate_exception | |
283 | { | |
73c13fe6 | 284 | DWORD them; |
2ea28649 | 285 | enum gdb_signal us; |
24e60978 SC |
286 | }; |
287 | ||
73c13fe6 | 288 | static const struct xlate_exception xlate[] = |
24e60978 | 289 | { |
a493e3e2 PA |
290 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
291 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
292 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
293 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
294 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
73c13fe6 TT |
295 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE} |
296 | }; | |
24e60978 | 297 | |
73c13fe6 | 298 | #endif /* 0 */ |
f6ac5f3d PA |
299 | |
300 | struct windows_nat_target final : public x86_nat_target<inf_child_target> | |
301 | { | |
302 | void close () override; | |
303 | ||
304 | void attach (const char *, int) override; | |
305 | ||
306 | bool attach_no_wait () override | |
307 | { return true; } | |
308 | ||
309 | void detach (inferior *, int) override; | |
310 | ||
311 | void resume (ptid_t, int , enum gdb_signal) override; | |
312 | ||
313 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
314 | ||
315 | void fetch_registers (struct regcache *, int) override; | |
316 | void store_registers (struct regcache *, int) override; | |
317 | ||
0a4afda3 TT |
318 | bool stopped_by_sw_breakpoint () override |
319 | { | |
3c76026d | 320 | return current_windows_thread->stopped_at_software_breakpoint; |
0a4afda3 TT |
321 | } |
322 | ||
323 | bool supports_stopped_by_sw_breakpoint () override | |
324 | { | |
325 | return true; | |
326 | } | |
327 | ||
f6ac5f3d PA |
328 | enum target_xfer_status xfer_partial (enum target_object object, |
329 | const char *annex, | |
330 | gdb_byte *readbuf, | |
331 | const gdb_byte *writebuf, | |
332 | ULONGEST offset, ULONGEST len, | |
333 | ULONGEST *xfered_len) override; | |
334 | ||
335 | void files_info () override; | |
336 | ||
337 | void kill () override; | |
338 | ||
339 | void create_inferior (const char *, const std::string &, | |
340 | char **, int) override; | |
341 | ||
342 | void mourn_inferior () override; | |
343 | ||
57810aa7 | 344 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d | 345 | |
a068643d | 346 | std::string pid_to_str (ptid_t) override; |
f6ac5f3d PA |
347 | |
348 | void interrupt () override; | |
349 | ||
350 | char *pid_to_exec_file (int pid) override; | |
351 | ||
352 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
353 | ||
57810aa7 | 354 | bool get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; |
f6ac5f3d PA |
355 | |
356 | const char *thread_name (struct thread_info *) override; | |
5b6d1e4f PA |
357 | |
358 | int get_windows_debug_event (int pid, struct target_waitstatus *ourstatus); | |
f6ac5f3d PA |
359 | }; |
360 | ||
361 | static windows_nat_target the_windows_nat_target; | |
362 | ||
7e63b4e4 JB |
363 | /* Set the MAPPINGS static global to OFFSETS. |
364 | See the description of MAPPINGS for more details. */ | |
365 | ||
46f9f931 | 366 | static void |
dc05df57 | 367 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
368 | { |
369 | mappings = offsets; | |
370 | } | |
371 | ||
46f9f931 HD |
372 | /* Set the function that should be used by this module to determine |
373 | whether a given register is a segment register or not. */ | |
d40dc7a8 | 374 | |
46f9f931 | 375 | static void |
d40dc7a8 JB |
376 | windows_set_segment_register_p (segment_register_p_ftype *fun) |
377 | { | |
378 | segment_register_p = fun; | |
379 | } | |
380 | ||
fa4ba8da PM |
381 | static void |
382 | check (BOOL ok, const char *file, int line) | |
383 | { | |
384 | if (!ok) | |
d50a0ce2 CV |
385 | printf_filtered ("error return %s:%d was %u\n", file, line, |
386 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
387 | } |
388 | ||
28688adf | 389 | /* See nat/windows-nat.h. */ |
8e61ebec | 390 | |
28688adf TT |
391 | windows_thread_info * |
392 | windows_nat::thread_rec (ptid_t ptid, thread_disposition_type disposition) | |
24e60978 | 393 | { |
93366324 | 394 | for (windows_thread_info *th : thread_list) |
28688adf | 395 | if (th->tid == ptid.lwp ()) |
3cee93ac | 396 | { |
8e61ebec | 397 | if (!th->suspended) |
3cee93ac | 398 | { |
8e61ebec TT |
399 | switch (disposition) |
400 | { | |
401 | case DONT_INVALIDATE_CONTEXT: | |
402 | /* Nothing. */ | |
403 | break; | |
404 | case INVALIDATE_CONTEXT: | |
28688adf | 405 | if (ptid.lwp () != current_event.dwThreadId) |
8e61ebec TT |
406 | th->suspend (); |
407 | th->reload_context = true; | |
408 | break; | |
409 | case DONT_SUSPEND: | |
410 | th->reload_context = true; | |
411 | th->suspended = -1; | |
412 | break; | |
413 | } | |
3cee93ac CF |
414 | } |
415 | return th; | |
416 | } | |
417 | ||
418 | return NULL; | |
419 | } | |
420 | ||
c559d709 JB |
421 | /* Add a thread to the thread list. |
422 | ||
423 | PTID is the ptid of the thread to be added. | |
424 | H is its Windows handle. | |
425 | TLB is its thread local base. | |
426 | MAIN_THREAD_P should be true if the thread to be added is | |
427 | the main thread, false otherwise. */ | |
428 | ||
876d1cd7 | 429 | static windows_thread_info * |
c559d709 | 430 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb, bool main_thread_p) |
3cee93ac | 431 | { |
876d1cd7 | 432 | windows_thread_info *th; |
2dc38344 | 433 | |
7c7411bc | 434 | gdb_assert (ptid.lwp () != 0); |
2dc38344 | 435 | |
28688adf | 436 | if ((th = thread_rec (ptid, DONT_INVALIDATE_CONTEXT))) |
3cee93ac CF |
437 | return th; |
438 | ||
e9534bd2 | 439 | CORE_ADDR base = (CORE_ADDR) (uintptr_t) tlb; |
46f9f931 HD |
440 | #ifdef __x86_64__ |
441 | /* For WOW64 processes, this is actually the pointer to the 64bit TIB, | |
442 | and the 32bit TIB is exactly 2 pages after it. */ | |
443 | if (wow64_process) | |
e9534bd2 | 444 | base += 0x2000; |
46f9f931 | 445 | #endif |
28688adf | 446 | th = new windows_thread_info (ptid.lwp (), h, base); |
93366324 | 447 | thread_list.push_back (th); |
c559d709 JB |
448 | |
449 | /* Add this new thread to the list of threads. | |
450 | ||
451 | To be consistent with what's done on other platforms, we add | |
452 | the main thread silently (in reality, this thread is really | |
453 | more of a process to the user than a thread). */ | |
454 | if (main_thread_p) | |
5b6d1e4f | 455 | add_thread_silent (&the_windows_nat_target, ptid); |
c559d709 | 456 | else |
5b6d1e4f | 457 | add_thread (&the_windows_nat_target, ptid); |
c559d709 | 458 | |
2dc38344 | 459 | /* Set the debug registers for the new thread if they are used. */ |
fa4ba8da PM |
460 | if (debug_registers_used) |
461 | { | |
46f9f931 HD |
462 | #ifdef __x86_64__ |
463 | if (wow64_process) | |
464 | { | |
465 | /* Only change the value of the debug registers. */ | |
466 | th->wow64_context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
467 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
468 | th->wow64_context.Dr0 = dr[0]; | |
469 | th->wow64_context.Dr1 = dr[1]; | |
470 | th->wow64_context.Dr2 = dr[2]; | |
471 | th->wow64_context.Dr3 = dr[3]; | |
472 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
473 | th->wow64_context.Dr7 = dr[7]; | |
474 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
475 | th->wow64_context.ContextFlags = 0; | |
476 | } | |
477 | else | |
478 | #endif | |
479 | { | |
480 | /* Only change the value of the debug registers. */ | |
481 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
482 | CHECK (GetThreadContext (th->h, &th->context)); | |
483 | th->context.Dr0 = dr[0]; | |
484 | th->context.Dr1 = dr[1]; | |
485 | th->context.Dr2 = dr[2]; | |
486 | th->context.Dr3 = dr[3]; | |
487 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
488 | th->context.Dr7 = dr[7]; | |
489 | CHECK (SetThreadContext (th->h, &th->context)); | |
490 | th->context.ContextFlags = 0; | |
491 | } | |
fa4ba8da | 492 | } |
3cee93ac | 493 | return th; |
24e60978 SC |
494 | } |
495 | ||
26c4b26f | 496 | /* Clear out any old thread list and reinitialize it to a |
581e13c1 | 497 | pristine state. */ |
24e60978 | 498 | static void |
dc05df57 | 499 | windows_init_thread_list (void) |
24e60978 | 500 | { |
dc05df57 | 501 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac | 502 | init_thread_list (); |
93366324 TT |
503 | |
504 | for (windows_thread_info *here : thread_list) | |
e9534bd2 | 505 | delete here; |
93366324 TT |
506 | |
507 | thread_list.clear (); | |
3cee93ac CF |
508 | } |
509 | ||
c559d709 JB |
510 | /* Delete a thread from the list of threads. |
511 | ||
512 | PTID is the ptid of the thread to be deleted. | |
513 | EXIT_CODE is the thread's exit code. | |
514 | MAIN_THREAD_P should be true if the thread to be deleted is | |
515 | the main thread, false otherwise. */ | |
516 | ||
3cee93ac | 517 | static void |
c559d709 | 518 | windows_delete_thread (ptid_t ptid, DWORD exit_code, bool main_thread_p) |
3cee93ac | 519 | { |
2dc38344 PA |
520 | DWORD id; |
521 | ||
7c7411bc | 522 | gdb_assert (ptid.lwp () != 0); |
2dc38344 | 523 | |
7c7411bc | 524 | id = ptid.lwp (); |
3cee93ac | 525 | |
c559d709 JB |
526 | /* Emit a notification about the thread being deleted. |
527 | ||
528 | Note that no notification was printed when the main thread | |
529 | was created, and thus, unless in verbose mode, we should be | |
85102364 | 530 | symmetrical, and avoid that notification for the main thread |
c559d709 JB |
531 | here as well. */ |
532 | ||
3cee93ac | 533 | if (info_verbose) |
a068643d | 534 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid).c_str ()); |
c559d709 | 535 | else if (print_thread_events && !main_thread_p) |
e0ea48a0 | 536 | printf_unfiltered (_("[%s exited with code %u]\n"), |
a068643d TT |
537 | target_pid_to_str (ptid).c_str (), |
538 | (unsigned) exit_code); | |
c559d709 | 539 | |
5b6d1e4f | 540 | delete_thread (find_thread_ptid (&the_windows_nat_target, ptid)); |
3cee93ac | 541 | |
93366324 TT |
542 | auto iter = std::find_if (thread_list.begin (), thread_list.end (), |
543 | [=] (windows_thread_info *th) | |
544 | { | |
55a1e039 | 545 | return th->tid == id; |
93366324 | 546 | }); |
3cee93ac | 547 | |
93366324 | 548 | if (iter != thread_list.end ()) |
24e60978 | 549 | { |
e9534bd2 | 550 | delete *iter; |
93366324 | 551 | thread_list.erase (iter); |
24e60978 SC |
552 | } |
553 | } | |
554 | ||
9a325b7b JB |
555 | /* Fetches register number R from the given windows_thread_info, |
556 | and supplies its value to the given regcache. | |
557 | ||
558 | This function assumes that R is non-negative. A failed assertion | |
559 | is raised if that is not true. | |
560 | ||
561 | This function assumes that TH->RELOAD_CONTEXT is not set, meaning | |
562 | that the windows_thread_info has an up-to-date context. A failed | |
563 | assertion is raised if that assumption is violated. */ | |
564 | ||
3cee93ac | 565 | static void |
9a325b7b JB |
566 | windows_fetch_one_register (struct regcache *regcache, |
567 | windows_thread_info *th, int r) | |
24e60978 | 568 | { |
9a325b7b JB |
569 | gdb_assert (r >= 0); |
570 | gdb_assert (!th->reload_context); | |
571 | ||
46f9f931 HD |
572 | char *context_ptr = (char *) &th->context; |
573 | #ifdef __x86_64__ | |
574 | if (wow64_process) | |
575 | context_ptr = (char *) &th->wow64_context; | |
576 | #endif | |
577 | ||
578 | char *context_offset = context_ptr + mappings[r]; | |
ac7936df | 579 | struct gdbarch *gdbarch = regcache->arch (); |
20a6ec49 | 580 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
9a325b7b | 581 | |
0a4afda3 TT |
582 | gdb_assert (!gdbarch_read_pc_p (gdbarch)); |
583 | gdb_assert (gdbarch_pc_regnum (gdbarch) >= 0); | |
584 | gdb_assert (!gdbarch_write_pc_p (gdbarch)); | |
585 | ||
9a325b7b JB |
586 | if (r == I387_FISEG_REGNUM (tdep)) |
587 | { | |
588 | long l = *((long *) context_offset) & 0xffff; | |
589 | regcache->raw_supply (r, (char *) &l); | |
590 | } | |
591 | else if (r == I387_FOP_REGNUM (tdep)) | |
592 | { | |
593 | long l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); | |
594 | regcache->raw_supply (r, (char *) &l); | |
595 | } | |
596 | else if (segment_register_p (r)) | |
597 | { | |
598 | /* GDB treats segment registers as 32bit registers, but they are | |
599 | in fact only 16 bits long. Make sure we do not read extra | |
600 | bits from our source buffer. */ | |
601 | long l = *((long *) context_offset) & 0xffff; | |
602 | regcache->raw_supply (r, (char *) &l); | |
603 | } | |
604 | else | |
0a4afda3 TT |
605 | { |
606 | if (th->stopped_at_software_breakpoint | |
7be2bb4f | 607 | && !th->pc_adjusted |
0a4afda3 TT |
608 | && r == gdbarch_pc_regnum (gdbarch)) |
609 | { | |
610 | int size = register_size (gdbarch, r); | |
611 | if (size == 4) | |
612 | { | |
613 | uint32_t value; | |
614 | memcpy (&value, context_offset, size); | |
615 | value -= gdbarch_decr_pc_after_break (gdbarch); | |
616 | memcpy (context_offset, &value, size); | |
617 | } | |
618 | else | |
619 | { | |
620 | gdb_assert (size == 8); | |
621 | uint64_t value; | |
622 | memcpy (&value, context_offset, size); | |
623 | value -= gdbarch_decr_pc_after_break (gdbarch); | |
624 | memcpy (context_offset, &value, size); | |
625 | } | |
7be2bb4f TT |
626 | /* Make sure we only rewrite the PC a single time. */ |
627 | th->pc_adjusted = true; | |
0a4afda3 TT |
628 | } |
629 | regcache->raw_supply (r, context_offset); | |
630 | } | |
9a325b7b JB |
631 | } |
632 | ||
633 | void | |
634 | windows_nat_target::fetch_registers (struct regcache *regcache, int r) | |
635 | { | |
28688adf | 636 | windows_thread_info *th = thread_rec (regcache->ptid (), INVALIDATE_CONTEXT); |
9a325b7b JB |
637 | |
638 | /* Check if TH exists. Windows sometimes uses a non-existent | |
639 | thread id in its events. */ | |
640 | if (th == NULL) | |
641 | return; | |
6c7de422 | 642 | |
3de88e9a | 643 | if (th->reload_context) |
3ade5333 | 644 | { |
f20c58f5 | 645 | #ifdef __CYGWIN__ |
a244bdca CF |
646 | if (have_saved_context) |
647 | { | |
581e13c1 MS |
648 | /* Lie about where the program actually is stopped since |
649 | cygwin has informed us that we should consider the signal | |
650 | to have occurred at another location which is stored in | |
651 | "saved_context. */ | |
3de88e9a | 652 | memcpy (&th->context, &saved_context, |
581e13c1 | 653 | __COPY_CONTEXT_SIZE); |
a244bdca CF |
654 | have_saved_context = 0; |
655 | } | |
656 | else | |
46f9f931 HD |
657 | #endif |
658 | #ifdef __x86_64__ | |
659 | if (wow64_process) | |
660 | { | |
661 | th->wow64_context.ContextFlags = CONTEXT_DEBUGGER_DR; | |
662 | CHECK (Wow64GetThreadContext (th->h, &th->wow64_context)); | |
663 | /* Copy dr values from that thread. | |
664 | But only if there were not modified since last stop. | |
665 | PR gdb/2388 */ | |
666 | if (!debug_registers_changed) | |
667 | { | |
668 | dr[0] = th->wow64_context.Dr0; | |
669 | dr[1] = th->wow64_context.Dr1; | |
670 | dr[2] = th->wow64_context.Dr2; | |
671 | dr[3] = th->wow64_context.Dr3; | |
672 | dr[6] = th->wow64_context.Dr6; | |
673 | dr[7] = th->wow64_context.Dr7; | |
674 | } | |
675 | } | |
676 | else | |
cb832706 | 677 | #endif |
a244bdca | 678 | { |
a244bdca | 679 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 680 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 681 | /* Copy dr values from that thread. |
581e13c1 MS |
682 | But only if there were not modified since last stop. |
683 | PR gdb/2388 */ | |
88616312 PM |
684 | if (!debug_registers_changed) |
685 | { | |
686 | dr[0] = th->context.Dr0; | |
687 | dr[1] = th->context.Dr1; | |
688 | dr[2] = th->context.Dr2; | |
689 | dr[3] = th->context.Dr3; | |
690 | dr[6] = th->context.Dr6; | |
691 | dr[7] = th->context.Dr7; | |
692 | } | |
a244bdca | 693 | } |
62fe396b | 694 | th->reload_context = false; |
3ade5333 CF |
695 | } |
696 | ||
9a325b7b JB |
697 | if (r < 0) |
698 | for (r = 0; r < gdbarch_num_regs (regcache->arch()); r++) | |
699 | windows_fetch_one_register (regcache, th, r); | |
3cee93ac | 700 | else |
9a325b7b | 701 | windows_fetch_one_register (regcache, th, r); |
3cee93ac CF |
702 | } |
703 | ||
9a325b7b JB |
704 | /* Collect the register number R from the given regcache, and store |
705 | its value into the corresponding area of the given thread's context. | |
3de88e9a | 706 | |
9a325b7b JB |
707 | This function assumes that R is non-negative. A failed assertion |
708 | assertion is raised if that is not true. */ | |
3cee93ac CF |
709 | |
710 | static void | |
9a325b7b JB |
711 | windows_store_one_register (const struct regcache *regcache, |
712 | windows_thread_info *th, int r) | |
3cee93ac | 713 | { |
9a325b7b JB |
714 | gdb_assert (r >= 0); |
715 | ||
46f9f931 HD |
716 | char *context_ptr = (char *) &th->context; |
717 | #ifdef __x86_64__ | |
718 | if (wow64_process) | |
719 | context_ptr = (char *) &th->wow64_context; | |
720 | #endif | |
721 | ||
722 | regcache->raw_collect (r, context_ptr + mappings[r]); | |
24e60978 SC |
723 | } |
724 | ||
3de88e9a SM |
725 | /* Store a new register value into the context of the thread tied to |
726 | REGCACHE. */ | |
f6ac5f3d PA |
727 | |
728 | void | |
729 | windows_nat_target::store_registers (struct regcache *regcache, int r) | |
3cee93ac | 730 | { |
28688adf | 731 | windows_thread_info *th = thread_rec (regcache->ptid (), INVALIDATE_CONTEXT); |
3de88e9a SM |
732 | |
733 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 734 | thread id in its events. */ |
9a325b7b JB |
735 | if (th == NULL) |
736 | return; | |
737 | ||
738 | if (r < 0) | |
739 | for (r = 0; r < gdbarch_num_regs (regcache->arch ()); r++) | |
740 | windows_store_one_register (regcache, th, r); | |
741 | else | |
742 | windows_store_one_register (regcache, th, r); | |
3cee93ac | 743 | } |
24e60978 | 744 | |
581e13c1 | 745 | /* Maintain a linked list of "so" information. */ |
d0e449a1 | 746 | struct lm_info_windows : public lm_info_base |
02e423b9 | 747 | { |
f8fdb78e | 748 | LPVOID load_addr = 0; |
c162ed3e | 749 | CORE_ADDR text_offset = 0; |
3ee6f623 CF |
750 | }; |
751 | ||
752 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 753 | |
de1b3c3d | 754 | static struct so_list * |
dc05df57 | 755 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 756 | { |
3ee6f623 | 757 | struct so_list *so; |
d0d0ab16 CV |
758 | char *p; |
759 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
760 | char buf[__PMAX]; |
761 | char cwd[__PMAX]; | |
3f8ad85b CF |
762 | WIN32_FIND_DATA w32_fd; |
763 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 764 | |
6badb179 CF |
765 | if (h == INVALID_HANDLE_VALUE) |
766 | strcpy (buf, name); | |
767 | else | |
3f8ad85b | 768 | { |
c914e0cc CF |
769 | FindClose (h); |
770 | strcpy (buf, name); | |
771 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
772 | { | |
773 | p = strrchr (buf, '\\'); | |
774 | if (p) | |
775 | p[1] = '\0'; | |
776 | SetCurrentDirectory (buf); | |
777 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
778 | SetCurrentDirectory (cwd); | |
779 | } | |
3f8ad85b | 780 | } |
3ee6f623 CF |
781 | if (strcasecmp (buf, "ntdll.dll") == 0) |
782 | { | |
783 | GetSystemDirectory (buf, sizeof (buf)); | |
784 | strcat (buf, "\\ntdll.dll"); | |
785 | } | |
d0d0ab16 | 786 | #else |
b3c613f2 | 787 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 788 | |
b3c613f2 | 789 | buf[0] = 0; |
d0d0ab16 CV |
790 | if (access (name, F_OK) != 0) |
791 | { | |
792 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 793 | #ifdef __USEWIDE |
d0d0ab16 CV |
794 | { |
795 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
796 | wcscat (buf, L"\\ntdll.dll"); | |
797 | } | |
b3c613f2 CF |
798 | #else |
799 | { | |
800 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
801 | strcat (buf, "\\ntdll.dll"); | |
802 | } | |
803 | #endif | |
d0d0ab16 CV |
804 | } |
805 | #endif | |
41bf6aca | 806 | so = XCNEW (struct so_list); |
f8fdb78e | 807 | lm_info_windows *li = new lm_info_windows; |
d0e449a1 SM |
808 | so->lm_info = li; |
809 | li->load_addr = load_addr; | |
de1b3c3d | 810 | strcpy (so->so_original_name, name); |
10325bc5 PA |
811 | #ifndef __CYGWIN__ |
812 | strcpy (so->so_name, buf); | |
813 | #else | |
d0d0ab16 CV |
814 | if (buf[0]) |
815 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
816 | SO_NAME_MAX_PATH_SIZE); | |
817 | else | |
818 | { | |
60c5c021 | 819 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
820 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
821 | { | |
822 | strcpy (so->so_name, rname); | |
823 | free (rname); | |
824 | } | |
825 | else | |
a0e9b532 JT |
826 | { |
827 | warning (_("dll path for \"%s\" too long or inaccessible"), name); | |
828 | strcpy (so->so_name, so->so_original_name); | |
829 | } | |
d0d0ab16 | 830 | } |
de1b3c3d PA |
831 | /* Record cygwin1.dll .text start/end. */ |
832 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
833 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
834 | { | |
de1b3c3d | 835 | asection *text = NULL; |
8e860359 | 836 | |
ad80db5b | 837 | gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386")); |
a244bdca | 838 | |
192b62ce | 839 | if (abfd == NULL) |
de1b3c3d PA |
840 | return so; |
841 | ||
192b62ce TT |
842 | if (bfd_check_format (abfd.get (), bfd_object)) |
843 | text = bfd_get_section_by_name (abfd.get (), ".text"); | |
de1b3c3d PA |
844 | |
845 | if (!text) | |
192b62ce | 846 | return so; |
de1b3c3d | 847 | |
7a9dd1b2 | 848 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 849 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
850 | file header and the section alignment. */ |
851 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
852 | load_addr + 0x1000); | |
fd361982 | 853 | cygwin_load_end = cygwin_load_start + bfd_section_size (text); |
de1b3c3d | 854 | } |
10325bc5 | 855 | #endif |
de1b3c3d PA |
856 | |
857 | return so; | |
8e860359 CF |
858 | } |
859 | ||
a816ba18 | 860 | /* See nat/windows-nat.h. */ |
1cd9feab | 861 | |
a816ba18 TT |
862 | void |
863 | windows_nat::handle_load_dll () | |
24e60978 | 864 | { |
3a4b77d8 | 865 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
9d8679cc | 866 | const char *dll_name; |
24e60978 | 867 | |
94481b8c JB |
868 | /* Try getting the DLL name via the lpImageName field of the event. |
869 | Note that Microsoft documents this fields as strictly optional, | |
870 | in the sense that it might be NULL. And the first DLL event in | |
871 | particular is explicitly documented as "likely not pass[ed]" | |
872 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
873 | dll_name = get_image_name (current_process_handle, |
874 | event->lpImageName, event->fUnicode); | |
3cee93ac | 875 | if (!dll_name) |
bf469271 | 876 | return; |
3cee93ac | 877 | |
dc05df57 | 878 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 879 | solib_end = solib_end->next; |
450005e7 | 880 | |
d0e449a1 SM |
881 | lm_info_windows *li = (lm_info_windows *) solib_end->lm_info; |
882 | ||
a74ce742 | 883 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
d0e449a1 | 884 | host_address_to_string (li->load_addr))); |
450005e7 CF |
885 | } |
886 | ||
3ee6f623 | 887 | static void |
dc05df57 | 888 | windows_free_so (struct so_list *so) |
3ee6f623 | 889 | { |
f8fdb78e SM |
890 | lm_info_windows *li = (lm_info_windows *) so->lm_info; |
891 | ||
892 | delete li; | |
de1b3c3d | 893 | xfree (so); |
3cb8e7f6 CF |
894 | } |
895 | ||
a816ba18 | 896 | /* See nat/windows-nat.h. */ |
3be75f87 | 897 | |
a816ba18 TT |
898 | void |
899 | windows_nat::handle_unload_dll () | |
d3ff4a77 | 900 | { |
d3653bf6 | 901 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 902 | struct so_list *so; |
d3ff4a77 CF |
903 | |
904 | for (so = &solib_start; so->next != NULL; so = so->next) | |
d0e449a1 SM |
905 | { |
906 | lm_info_windows *li_next = (lm_info_windows *) so->next->lm_info; | |
a25cd31f | 907 | |
d0e449a1 SM |
908 | if (li_next->load_addr == lpBaseOfDll) |
909 | { | |
910 | struct so_list *sodel = so->next; | |
7488902c | 911 | |
d0e449a1 SM |
912 | so->next = sodel->next; |
913 | if (!so->next) | |
914 | solib_end = so; | |
915 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); | |
916 | ||
917 | windows_free_so (sodel); | |
bf469271 | 918 | return; |
d0e449a1 SM |
919 | } |
920 | } | |
3929abe9 | 921 | |
ecc13e53 JB |
922 | /* We did not find any DLL that was previously loaded at this address, |
923 | so register a complaint. We do not report an error, because we have | |
924 | observed that this may be happening under some circumstances. For | |
925 | instance, running 32bit applications on x64 Windows causes us to receive | |
926 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
927 | events are apparently caused by the WOW layer, the interface between | |
928 | 32bit and 64bit worlds). */ | |
b98664d3 | 929 | complaint (_("dll starting at %s not found."), |
ecc13e53 | 930 | host_address_to_string (lpBaseOfDll)); |
bf469271 PA |
931 | } |
932 | ||
933 | /* Call FUNC wrapped in a TRY/CATCH that swallows all GDB | |
934 | exceptions. */ | |
d3ff4a77 | 935 | |
bf469271 PA |
936 | static void |
937 | catch_errors (void (*func) ()) | |
938 | { | |
a70b8144 | 939 | try |
bf469271 PA |
940 | { |
941 | func (); | |
942 | } | |
230d2906 | 943 | catch (const gdb_exception &ex) |
bf469271 PA |
944 | { |
945 | exception_print (gdb_stderr, ex); | |
946 | } | |
d3ff4a77 CF |
947 | } |
948 | ||
581e13c1 | 949 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 950 | static void |
dc05df57 | 951 | windows_clear_solib (void) |
450005e7 | 952 | { |
25057eb0 HD |
953 | struct so_list *so; |
954 | ||
955 | for (so = solib_start.next; so; so = solib_start.next) | |
956 | { | |
957 | solib_start.next = so->next; | |
958 | windows_free_so (so); | |
959 | } | |
960 | ||
450005e7 | 961 | solib_end = &solib_start; |
450005e7 | 962 | } |
295732ea | 963 | |
463888ab | 964 | static void |
0b39b52e | 965 | signal_event_command (const char *args, int from_tty) |
463888ab РИ |
966 | { |
967 | uintptr_t event_id = 0; | |
968 | char *endargs = NULL; | |
969 | ||
970 | if (args == NULL) | |
971 | error (_("signal-event requires an argument (integer event id)")); | |
972 | ||
973 | event_id = strtoumax (args, &endargs, 10); | |
974 | ||
975 | if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || | |
976 | ((HANDLE) event_id == INVALID_HANDLE_VALUE)) | |
977 | error (_("Failed to convert `%s' to event id"), args); | |
978 | ||
979 | SetEvent ((HANDLE) event_id); | |
980 | CloseHandle ((HANDLE) event_id); | |
981 | } | |
982 | ||
d41b524f TT |
983 | /* See nat/windows-nat.h. */ |
984 | ||
985 | int | |
986 | windows_nat::handle_output_debug_string (struct target_waitstatus *ourstatus) | |
3cee93ac | 987 | { |
a244bdca | 988 | int retval = 0; |
3cee93ac | 989 | |
66920317 TT |
990 | gdb::unique_xmalloc_ptr<char> s |
991 | = (target_read_string | |
992 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, | |
993 | 1024)); | |
994 | if (s == nullptr || !*(s.get ())) | |
a244bdca | 995 | /* nothing to do */; |
e83e4e24 | 996 | else if (!startswith (s.get (), _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 997 | { |
10325bc5 | 998 | #ifdef __CYGWIN__ |
e83e4e24 | 999 | if (!startswith (s.get (), "cYg")) |
10325bc5 | 1000 | #endif |
040ea00b | 1001 | { |
e83e4e24 | 1002 | char *p = strchr (s.get (), '\0'); |
040ea00b | 1003 | |
e83e4e24 | 1004 | if (p > s.get () && *--p == '\n') |
040ea00b | 1005 | *p = '\0'; |
e83e4e24 | 1006 | warning (("%s"), s.get ()); |
040ea00b | 1007 | } |
3cee93ac | 1008 | } |
f20c58f5 | 1009 | #ifdef __CYGWIN__ |
d3a09475 | 1010 | else |
3cee93ac | 1011 | { |
581e13c1 MS |
1012 | /* Got a cygwin signal marker. A cygwin signal is followed by |
1013 | the signal number itself and then optionally followed by the | |
1014 | thread id and address to saved context within the DLL. If | |
1015 | these are supplied, then the given thread is assumed to have | |
1016 | issued the signal and the context from the thread is assumed | |
1017 | to be stored at the given address in the inferior. Tell gdb | |
1018 | to treat this like a real signal. */ | |
3cee93ac | 1019 | char *p; |
e83e4e24 | 1020 | int sig = strtol (s.get () + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0ae534d2 | 1021 | gdb_signal gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 1022 | |
0714f9bf SS |
1023 | ourstatus->value.sig = gotasig; |
1024 | if (gotasig) | |
a244bdca CF |
1025 | { |
1026 | LPCVOID x; | |
2c15ef43 | 1027 | SIZE_T n; |
c62fa0e2 | 1028 | |
a244bdca CF |
1029 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
1030 | retval = strtoul (p, &p, 0); | |
1031 | if (!retval) | |
ab4ee614 | 1032 | retval = current_event.dwThreadId; |
40653b35 | 1033 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 1034 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
1035 | &saved_context, |
1036 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
1037 | && n == __COPY_CONTEXT_SIZE) |
1038 | have_saved_context = 1; | |
a244bdca | 1039 | } |
3cee93ac | 1040 | } |
cb832706 | 1041 | #endif |
3cee93ac | 1042 | |
a244bdca | 1043 | return retval; |
3cee93ac | 1044 | } |
24e60978 | 1045 | |
c1748f97 PM |
1046 | static int |
1047 | display_selector (HANDLE thread, DWORD sel) | |
1048 | { | |
1049 | LDT_ENTRY info; | |
46f9f931 HD |
1050 | BOOL ret; |
1051 | #ifdef __x86_64__ | |
1052 | if (wow64_process) | |
1053 | ret = Wow64GetThreadSelectorEntry (thread, sel, &info); | |
1054 | else | |
1055 | #endif | |
1056 | ret = GetThreadSelectorEntry (thread, sel, &info); | |
1057 | if (ret) | |
c1748f97 PM |
1058 | { |
1059 | int base, limit; | |
d50a0ce2 | 1060 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 1061 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
1062 | { |
1063 | puts_filtered ("Segment not present\n"); | |
1064 | return 0; | |
1065 | } | |
c1748f97 PM |
1066 | base = (info.HighWord.Bits.BaseHi << 24) + |
1067 | (info.HighWord.Bits.BaseMid << 16) | |
1068 | + info.BaseLow; | |
1069 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
1070 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 1071 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
1072 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
1073 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 1074 | puts_filtered(" 32-bit "); |
c1748f97 | 1075 | else |
baa93fa6 | 1076 | puts_filtered(" 16-bit "); |
c1748f97 PM |
1077 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1078 | { | |
1079 | case 0: | |
baa93fa6 CF |
1080 | puts_filtered ("Data (Read-Only, Exp-up"); |
1081 | break; | |
c1748f97 | 1082 | case 1: |
baa93fa6 CF |
1083 | puts_filtered ("Data (Read/Write, Exp-up"); |
1084 | break; | |
c1748f97 | 1085 | case 2: |
baa93fa6 CF |
1086 | puts_filtered ("Unused segment ("); |
1087 | break; | |
c1748f97 | 1088 | case 3: |
baa93fa6 CF |
1089 | puts_filtered ("Data (Read/Write, Exp-down"); |
1090 | break; | |
c1748f97 | 1091 | case 4: |
baa93fa6 CF |
1092 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1093 | break; | |
c1748f97 | 1094 | case 5: |
baa93fa6 | 1095 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1096 | break; |
1097 | case 6: | |
baa93fa6 | 1098 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1099 | break; |
1100 | case 7: | |
baa93fa6 | 1101 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1102 | break; |
1103 | default: | |
e432ccf1 JT |
1104 | printf_filtered ("Unknown type 0x%lx", |
1105 | (unsigned long) info.HighWord.Bits.Type); | |
c1748f97 PM |
1106 | } |
1107 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1108 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1109 | puts_filtered (")\n"); |
1110 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1111 | puts_filtered("System selector "); | |
e432ccf1 JT |
1112 | printf_filtered ("Priviledge level = %ld. ", |
1113 | (unsigned long) info.HighWord.Bits.Dpl); | |
c1748f97 | 1114 | if (info.HighWord.Bits.Granularity) |
baa93fa6 | 1115 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1116 | else |
1117 | puts_filtered ("Byte granular.\n"); | |
1118 | return 1; | |
1119 | } | |
1120 | else | |
1121 | { | |
5572ce1f PM |
1122 | DWORD err = GetLastError (); |
1123 | if (err == ERROR_NOT_SUPPORTED) | |
1124 | printf_filtered ("Function not supported\n"); | |
1125 | else | |
d50a0ce2 | 1126 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1127 | return 0; |
1128 | } | |
1129 | } | |
1130 | ||
1131 | static void | |
5fed81ff | 1132 | display_selectors (const char * args, int from_tty) |
c1748f97 | 1133 | { |
3c76026d | 1134 | if (!current_windows_thread) |
c1748f97 PM |
1135 | { |
1136 | puts_filtered ("Impossible to display selectors now.\n"); | |
1137 | return; | |
1138 | } | |
1139 | if (!args) | |
1140 | { | |
46f9f931 HD |
1141 | #ifdef __x86_64__ |
1142 | if (wow64_process) | |
1143 | { | |
1144 | puts_filtered ("Selector $cs\n"); | |
3c76026d TT |
1145 | display_selector (current_windows_thread->h, |
1146 | current_windows_thread->wow64_context.SegCs); | |
46f9f931 | 1147 | puts_filtered ("Selector $ds\n"); |
3c76026d TT |
1148 | display_selector (current_windows_thread->h, |
1149 | current_windows_thread->wow64_context.SegDs); | |
46f9f931 | 1150 | puts_filtered ("Selector $es\n"); |
3c76026d TT |
1151 | display_selector (current_windows_thread->h, |
1152 | current_windows_thread->wow64_context.SegEs); | |
46f9f931 | 1153 | puts_filtered ("Selector $ss\n"); |
3c76026d TT |
1154 | display_selector (current_windows_thread->h, |
1155 | current_windows_thread->wow64_context.SegSs); | |
46f9f931 | 1156 | puts_filtered ("Selector $fs\n"); |
3c76026d TT |
1157 | display_selector (current_windows_thread->h, |
1158 | current_windows_thread->wow64_context.SegFs); | |
46f9f931 | 1159 | puts_filtered ("Selector $gs\n"); |
3c76026d TT |
1160 | display_selector (current_windows_thread->h, |
1161 | current_windows_thread->wow64_context.SegGs); | |
46f9f931 HD |
1162 | } |
1163 | else | |
1164 | #endif | |
1165 | { | |
1166 | puts_filtered ("Selector $cs\n"); | |
3c76026d TT |
1167 | display_selector (current_windows_thread->h, |
1168 | current_windows_thread->context.SegCs); | |
46f9f931 | 1169 | puts_filtered ("Selector $ds\n"); |
3c76026d TT |
1170 | display_selector (current_windows_thread->h, |
1171 | current_windows_thread->context.SegDs); | |
46f9f931 | 1172 | puts_filtered ("Selector $es\n"); |
3c76026d TT |
1173 | display_selector (current_windows_thread->h, |
1174 | current_windows_thread->context.SegEs); | |
46f9f931 | 1175 | puts_filtered ("Selector $ss\n"); |
3c76026d TT |
1176 | display_selector (current_windows_thread->h, |
1177 | current_windows_thread->context.SegSs); | |
46f9f931 | 1178 | puts_filtered ("Selector $fs\n"); |
3c76026d TT |
1179 | display_selector (current_windows_thread->h, |
1180 | current_windows_thread->context.SegFs); | |
46f9f931 | 1181 | puts_filtered ("Selector $gs\n"); |
3c76026d TT |
1182 | display_selector (current_windows_thread->h, |
1183 | current_windows_thread->context.SegGs); | |
46f9f931 | 1184 | } |
c1748f97 PM |
1185 | } |
1186 | else | |
1187 | { | |
1188 | int sel; | |
1189 | sel = parse_and_eval_long (args); | |
1190 | printf_filtered ("Selector \"%s\"\n",args); | |
3c76026d | 1191 | display_selector (current_windows_thread->h, sel); |
c1748f97 PM |
1192 | } |
1193 | } | |
1194 | ||
8d30e395 | 1195 | /* See nat/windows-nat.h. */ |
7393af7c | 1196 | |
8d30e395 TT |
1197 | bool |
1198 | windows_nat::handle_ms_vc_exception (const EXCEPTION_RECORD *rec) | |
24e60978 | 1199 | { |
8d30e395 TT |
1200 | if (rec->NumberParameters >= 3 |
1201 | && (rec->ExceptionInformation[0] & 0xffffffff) == 0x1000) | |
24e60978 | 1202 | { |
8d30e395 TT |
1203 | DWORD named_thread_id; |
1204 | windows_thread_info *named_thread; | |
1205 | CORE_ADDR thread_name_target; | |
24cdb46e | 1206 | |
8d30e395 TT |
1207 | thread_name_target = rec->ExceptionInformation[1]; |
1208 | named_thread_id = (DWORD) (0xffffffff & rec->ExceptionInformation[2]); | |
24cdb46e | 1209 | |
8d30e395 TT |
1210 | if (named_thread_id == (DWORD) -1) |
1211 | named_thread_id = current_event.dwThreadId; | |
24cdb46e | 1212 | |
8d30e395 TT |
1213 | named_thread = thread_rec (ptid_t (current_event.dwProcessId, |
1214 | named_thread_id, 0), | |
1215 | DONT_INVALIDATE_CONTEXT); | |
1216 | if (named_thread != NULL) | |
1217 | { | |
1218 | int thread_name_len; | |
66920317 TT |
1219 | gdb::unique_xmalloc_ptr<char> thread_name |
1220 | = target_read_string (thread_name_target, 1025, &thread_name_len); | |
8d30e395 | 1221 | if (thread_name_len > 0) |
24cdb46e | 1222 | { |
8d30e395 TT |
1223 | thread_name.get ()[thread_name_len - 1] = '\0'; |
1224 | named_thread->name = std::move (thread_name); | |
24cdb46e | 1225 | } |
24cdb46e | 1226 | } |
8d30e395 TT |
1227 | |
1228 | return true; | |
24e60978 | 1229 | } |
8d30e395 TT |
1230 | |
1231 | return false; | |
24e60978 SC |
1232 | } |
1233 | ||
a010605f TT |
1234 | /* See nat/windows-nat.h. */ |
1235 | ||
1236 | bool | |
1237 | windows_nat::handle_access_violation (const EXCEPTION_RECORD *rec) | |
1238 | { | |
1239 | #ifdef __CYGWIN__ | |
1240 | /* See if the access violation happened within the cygwin DLL | |
1241 | itself. Cygwin uses a kind of exception handling to deal with | |
1242 | passed-in invalid addresses. gdb should not treat these as real | |
1243 | SEGVs since they will be silently handled by cygwin. A real SEGV | |
1244 | will (theoretically) be caught by cygwin later in the process and | |
1245 | will be sent as a cygwin-specific-signal. So, ignore SEGVs if | |
1246 | they show up within the text segment of the DLL itself. */ | |
1247 | const char *fn; | |
1248 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) rec->ExceptionAddress; | |
1249 | ||
1250 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1251 | && addr < cygwin_load_end)) | |
1252 | || (find_pc_partial_function (addr, &fn, NULL, NULL) | |
1253 | && startswith (fn, "KERNEL32!IsBad"))) | |
1254 | return true; | |
1255 | #endif | |
1256 | return false; | |
1257 | } | |
1258 | ||
17617f2d EZ |
1259 | /* Resume thread specified by ID, or all artificially suspended |
1260 | threads, if we are continuing execution. KILLED non-zero means we | |
1261 | have killed the inferior, so we should ignore weird errors due to | |
1262 | threads shutting down. */ | |
3cee93ac | 1263 | static BOOL |
17617f2d | 1264 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac | 1265 | { |
3cee93ac CF |
1266 | BOOL res; |
1267 | ||
0a4afda3 TT |
1268 | desired_stop_thread_id = id; |
1269 | ||
e758e19c TT |
1270 | if (matching_pending_stop (debug_events)) |
1271 | return TRUE; | |
6537bb24 | 1272 | |
93366324 | 1273 | for (windows_thread_info *th : thread_list) |
0a4afda3 | 1274 | if (id == -1 || id == (int) th->tid) |
6537bb24 | 1275 | { |
0a4afda3 TT |
1276 | if (!th->suspended) |
1277 | continue; | |
46f9f931 HD |
1278 | #ifdef __x86_64__ |
1279 | if (wow64_process) | |
6537bb24 | 1280 | { |
46f9f931 HD |
1281 | if (debug_registers_changed) |
1282 | { | |
1283 | th->wow64_context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1284 | th->wow64_context.Dr0 = dr[0]; | |
1285 | th->wow64_context.Dr1 = dr[1]; | |
1286 | th->wow64_context.Dr2 = dr[2]; | |
1287 | th->wow64_context.Dr3 = dr[3]; | |
1288 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1289 | th->wow64_context.Dr7 = dr[7]; | |
1290 | } | |
1291 | if (th->wow64_context.ContextFlags) | |
1292 | { | |
1293 | DWORD ec = 0; | |
1294 | ||
1295 | if (GetExitCodeThread (th->h, &ec) | |
1296 | && ec == STILL_ACTIVE) | |
1297 | { | |
1298 | BOOL status = Wow64SetThreadContext (th->h, | |
1299 | &th->wow64_context); | |
1300 | ||
1301 | if (!killed) | |
1302 | CHECK (status); | |
1303 | } | |
1304 | th->wow64_context.ContextFlags = 0; | |
1305 | } | |
6537bb24 | 1306 | } |
46f9f931 HD |
1307 | else |
1308 | #endif | |
6537bb24 | 1309 | { |
46f9f931 | 1310 | if (debug_registers_changed) |
17617f2d | 1311 | { |
46f9f931 HD |
1312 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; |
1313 | th->context.Dr0 = dr[0]; | |
1314 | th->context.Dr1 = dr[1]; | |
1315 | th->context.Dr2 = dr[2]; | |
1316 | th->context.Dr3 = dr[3]; | |
1317 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1318 | th->context.Dr7 = dr[7]; | |
1319 | } | |
1320 | if (th->context.ContextFlags) | |
1321 | { | |
1322 | DWORD ec = 0; | |
1323 | ||
1324 | if (GetExitCodeThread (th->h, &ec) | |
1325 | && ec == STILL_ACTIVE) | |
1326 | { | |
1327 | BOOL status = SetThreadContext (th->h, &th->context); | |
17617f2d | 1328 | |
46f9f931 HD |
1329 | if (!killed) |
1330 | CHECK (status); | |
1331 | } | |
1332 | th->context.ContextFlags = 0; | |
17617f2d | 1333 | } |
6537bb24 | 1334 | } |
98a03287 | 1335 | th->resume (); |
6537bb24 | 1336 | } |
0a4afda3 TT |
1337 | else |
1338 | { | |
1339 | /* When single-stepping a specific thread, other threads must | |
1340 | be suspended. */ | |
1341 | th->suspend (); | |
1342 | } | |
6537bb24 | 1343 | |
e758e19c | 1344 | res = continue_last_debug_event (continue_status, debug_events); |
3cee93ac | 1345 | |
68ffc902 JT |
1346 | if (!res) |
1347 | error (_("Failed to resume program execution" | |
1348 | " (ContinueDebugEvent failed, error %u)"), | |
1349 | (unsigned int) GetLastError ()); | |
1350 | ||
fa4ba8da | 1351 | debug_registers_changed = 0; |
3cee93ac CF |
1352 | return res; |
1353 | } | |
1354 | ||
d6dc8049 CF |
1355 | /* Called in pathological case where Windows fails to send a |
1356 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1357 | static DWORD |
5439edaa | 1358 | fake_create_process (void) |
3ade5333 CF |
1359 | { |
1360 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1361 | current_event.dwProcessId); | |
bf25528d CF |
1362 | if (current_process_handle != NULL) |
1363 | open_process_used = 1; | |
1364 | else | |
1365 | { | |
d50a0ce2 CV |
1366 | error (_("OpenProcess call failed, GetLastError = %u"), |
1367 | (unsigned) GetLastError ()); | |
bf25528d CF |
1368 | /* We can not debug anything in that case. */ |
1369 | } | |
3c76026d | 1370 | current_windows_thread |
7c7411bc TT |
1371 | = windows_add_thread (ptid_t (current_event.dwProcessId, |
1372 | current_event.dwThreadId, 0), | |
c559d709 JB |
1373 | current_event.u.CreateThread.hThread, |
1374 | current_event.u.CreateThread.lpThreadLocalBase, | |
1375 | true /* main_thread_p */); | |
ab4ee614 | 1376 | return current_event.dwThreadId; |
3ade5333 CF |
1377 | } |
1378 | ||
f6ac5f3d PA |
1379 | void |
1380 | windows_nat_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
a244bdca | 1381 | { |
876d1cd7 | 1382 | windows_thread_info *th; |
a244bdca CF |
1383 | DWORD continue_status = DBG_CONTINUE; |
1384 | ||
2dc38344 | 1385 | /* A specific PTID means `step only this thread id'. */ |
d7e15655 | 1386 | int resume_all = ptid == minus_one_ptid; |
2dc38344 PA |
1387 | |
1388 | /* If we're continuing all threads, it's the current inferior that | |
1389 | should be handled specially. */ | |
1390 | if (resume_all) | |
1391 | ptid = inferior_ptid; | |
a244bdca | 1392 | |
a493e3e2 | 1393 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1394 | { |
1395 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1396 | { | |
1397 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1398 | } | |
1399 | else if (sig == last_sig) | |
1400 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1401 | else | |
1402 | #if 0 | |
1403 | /* This code does not seem to work, because | |
1404 | the kernel does probably not consider changes in the ExceptionRecord | |
1405 | structure when passing the exception to the inferior. | |
1406 | Note that this seems possible in the exception handler itself. */ | |
1407 | { | |
73c13fe6 TT |
1408 | for (const xlate_exception &x : xlate) |
1409 | if (x.us == sig) | |
a244bdca | 1410 | { |
581e13c1 | 1411 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
73c13fe6 | 1412 | = x.them; |
a244bdca CF |
1413 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1414 | break; | |
1415 | } | |
1416 | if (continue_status == DBG_CONTINUE) | |
1417 | { | |
1418 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1419 | } | |
1420 | } | |
1421 | #endif | |
23942819 | 1422 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1423 | last_sig)); |
1424 | } | |
1425 | ||
a493e3e2 | 1426 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1427 | |
55dfc88f | 1428 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=0x%x, step=%d, sig=%d);\n", |
7c7411bc | 1429 | ptid.pid (), (unsigned) ptid.lwp (), step, sig)); |
a244bdca | 1430 | |
581e13c1 | 1431 | /* Get context for currently selected thread. */ |
28688adf | 1432 | th = thread_rec (inferior_ptid, DONT_INVALIDATE_CONTEXT); |
a244bdca CF |
1433 | if (th) |
1434 | { | |
46f9f931 HD |
1435 | #ifdef __x86_64__ |
1436 | if (wow64_process) | |
a244bdca | 1437 | { |
46f9f931 HD |
1438 | if (step) |
1439 | { | |
1440 | /* Single step by setting t bit. */ | |
1441 | struct regcache *regcache = get_current_regcache (); | |
1442 | struct gdbarch *gdbarch = regcache->arch (); | |
1443 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1444 | th->wow64_context.EFlags |= FLAG_TRACE_BIT; | |
1445 | } | |
a244bdca | 1446 | |
46f9f931 HD |
1447 | if (th->wow64_context.ContextFlags) |
1448 | { | |
1449 | if (debug_registers_changed) | |
1450 | { | |
1451 | th->wow64_context.Dr0 = dr[0]; | |
1452 | th->wow64_context.Dr1 = dr[1]; | |
1453 | th->wow64_context.Dr2 = dr[2]; | |
1454 | th->wow64_context.Dr3 = dr[3]; | |
1455 | th->wow64_context.Dr6 = DR6_CLEAR_VALUE; | |
1456 | th->wow64_context.Dr7 = dr[7]; | |
1457 | } | |
1458 | CHECK (Wow64SetThreadContext (th->h, &th->wow64_context)); | |
1459 | th->wow64_context.ContextFlags = 0; | |
1460 | } | |
1461 | } | |
1462 | else | |
1463 | #endif | |
a244bdca | 1464 | { |
46f9f931 | 1465 | if (step) |
a244bdca | 1466 | { |
46f9f931 HD |
1467 | /* Single step by setting t bit. */ |
1468 | struct regcache *regcache = get_current_regcache (); | |
1469 | struct gdbarch *gdbarch = regcache->arch (); | |
1470 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); | |
1471 | th->context.EFlags |= FLAG_TRACE_BIT; | |
1472 | } | |
1473 | ||
1474 | if (th->context.ContextFlags) | |
1475 | { | |
1476 | if (debug_registers_changed) | |
1477 | { | |
1478 | th->context.Dr0 = dr[0]; | |
1479 | th->context.Dr1 = dr[1]; | |
1480 | th->context.Dr2 = dr[2]; | |
1481 | th->context.Dr3 = dr[3]; | |
1482 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1483 | th->context.Dr7 = dr[7]; | |
1484 | } | |
1485 | CHECK (SetThreadContext (th->h, &th->context)); | |
1486 | th->context.ContextFlags = 0; | |
a244bdca | 1487 | } |
a244bdca CF |
1488 | } |
1489 | } | |
1490 | ||
1491 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1492 | Otherwise complain. */ |
a244bdca | 1493 | |
2dc38344 | 1494 | if (resume_all) |
17617f2d | 1495 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1496 | else |
7c7411bc | 1497 | windows_continue (continue_status, ptid.lwp (), 0); |
a244bdca CF |
1498 | } |
1499 | ||
695de547 CF |
1500 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1501 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1502 | Note that this function is not available prior to Windows XP. In this case | |
1503 | we emit a warning. */ | |
d603d4b3 | 1504 | static BOOL WINAPI |
695de547 CF |
1505 | ctrl_c_handler (DWORD event_type) |
1506 | { | |
1507 | const int attach_flag = current_inferior ()->attach_flag; | |
1508 | ||
bb0613a5 PM |
1509 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1510 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1511 | return FALSE; |
1512 | ||
1513 | /* If the inferior and the debugger share the same console, do nothing as | |
1514 | the inferior has also received the Ctrl-C event. */ | |
1515 | if (!new_console && !attach_flag) | |
1516 | return TRUE; | |
1517 | ||
1518 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1519 | warning (_("Could not interrupt program. " |
1520 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1521 | |
1522 | /* Return true to tell that Ctrl-C has been handled. */ | |
1523 | return TRUE; | |
1524 | } | |
1525 | ||
e6ad66bd JT |
1526 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1527 | requires handling by WFI (or whatever). */ | |
5b6d1e4f PA |
1528 | |
1529 | int | |
1530 | windows_nat_target::get_windows_debug_event (int pid, | |
1531 | struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1532 | { |
1533 | BOOL debug_event; | |
8a892701 | 1534 | DWORD continue_status, event_code; |
876d1cd7 | 1535 | windows_thread_info *th; |
e9534bd2 | 1536 | static windows_thread_info dummy_thread_info (0, 0, 0); |
e6ad66bd | 1537 | DWORD thread_id = 0; |
1e37c281 | 1538 | |
0a4afda3 TT |
1539 | /* If there is a relevant pending stop, report it now. See the |
1540 | comment by the definition of "pending_stops" for details on why | |
1541 | this is needed. */ | |
d2977bc4 TT |
1542 | gdb::optional<pending_stop> stop = fetch_pending_stop (debug_events); |
1543 | if (stop.has_value ()) | |
0a4afda3 | 1544 | { |
d2977bc4 TT |
1545 | thread_id = stop->thread_id; |
1546 | *ourstatus = stop->status; | |
0a4afda3 | 1547 | |
d2977bc4 TT |
1548 | inferior_ptid = ptid_t (current_event.dwProcessId, thread_id, 0); |
1549 | current_windows_thread = thread_rec (inferior_ptid, | |
1550 | INVALIDATE_CONTEXT); | |
1551 | current_windows_thread->reload_context = 1; | |
0a4afda3 | 1552 | |
d2977bc4 | 1553 | return thread_id; |
0a4afda3 TT |
1554 | } |
1555 | ||
a493e3e2 | 1556 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1557 | |
0a4afda3 | 1558 | if (!(debug_event = wait_for_debug_event (¤t_event, 1000))) |
29fe111d | 1559 | goto out; |
1e37c281 | 1560 | |
1e37c281 | 1561 | continue_status = DBG_CONTINUE; |
1e37c281 | 1562 | |
8a892701 | 1563 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1564 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1565 | th = NULL; |
a244bdca | 1566 | have_saved_context = 0; |
8a892701 CF |
1567 | |
1568 | switch (event_code) | |
1e37c281 JM |
1569 | { |
1570 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1571 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1572 | (unsigned) current_event.dwProcessId, |
1573 | (unsigned) current_event.dwThreadId, | |
1574 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1575 | if (saw_create != 1) |
3ade5333 | 1576 | { |
5b6d1e4f | 1577 | inferior *inf = find_inferior_pid (this, current_event.dwProcessId); |
181e7f93 | 1578 | if (!saw_create && inf->attach_flag) |
3ade5333 | 1579 | { |
d6dc8049 CF |
1580 | /* Kludge around a Windows bug where first event is a create |
1581 | thread event. Caused when attached process does not have | |
581e13c1 | 1582 | a main thread. */ |
e6ad66bd JT |
1583 | thread_id = fake_create_process (); |
1584 | if (thread_id) | |
181e7f93 | 1585 | saw_create++; |
3ade5333 CF |
1586 | } |
1587 | break; | |
1588 | } | |
581e13c1 | 1589 | /* Record the existence of this thread. */ |
e6ad66bd | 1590 | thread_id = current_event.dwThreadId; |
c559d709 | 1591 | th = windows_add_thread |
7c7411bc | 1592 | (ptid_t (current_event.dwProcessId, current_event.dwThreadId, 0), |
c559d709 JB |
1593 | current_event.u.CreateThread.hThread, |
1594 | current_event.u.CreateThread.lpThreadLocalBase, | |
1595 | false /* main_thread_p */); | |
711e434b | 1596 | |
1e37c281 JM |
1597 | break; |
1598 | ||
1599 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1600 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1601 | (unsigned) current_event.dwProcessId, |
1602 | (unsigned) current_event.dwThreadId, | |
1603 | "EXIT_THREAD_DEBUG_EVENT")); | |
7c7411bc TT |
1604 | windows_delete_thread (ptid_t (current_event.dwProcessId, |
1605 | current_event.dwThreadId, 0), | |
c559d709 JB |
1606 | current_event.u.ExitThread.dwExitCode, |
1607 | false /* main_thread_p */); | |
2eab46b1 | 1608 | th = &dummy_thread_info; |
1e37c281 JM |
1609 | break; |
1610 | ||
1611 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1612 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1613 | (unsigned) current_event.dwProcessId, |
1614 | (unsigned) current_event.dwThreadId, | |
1615 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1616 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1617 | if (++saw_create != 1) |
bf25528d | 1618 | break; |
1e37c281 | 1619 | |
dfe7f3ac | 1620 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
581e13c1 | 1621 | /* Add the main thread. */ |
c559d709 | 1622 | th = windows_add_thread |
7c7411bc TT |
1623 | (ptid_t (current_event.dwProcessId, |
1624 | current_event.dwThreadId, 0), | |
c559d709 JB |
1625 | current_event.u.CreateProcessInfo.hThread, |
1626 | current_event.u.CreateProcessInfo.lpThreadLocalBase, | |
1627 | true /* main_thread_p */); | |
e6ad66bd | 1628 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1629 | break; |
1630 | ||
1631 | case EXIT_PROCESS_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_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1636 | if (!windows_initialization_done) |
1637 | { | |
223ffa71 | 1638 | target_terminal::ours (); |
bc1e6c81 | 1639 | target_mourn_inferior (inferior_ptid); |
16d905e2 CF |
1640 | error (_("During startup program exited with code 0x%x."), |
1641 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1642 | } | |
1643 | else if (saw_create == 1) | |
1644 | { | |
7c7411bc TT |
1645 | windows_delete_thread (ptid_t (current_event.dwProcessId, |
1646 | current_event.dwThreadId, 0), | |
c559d709 | 1647 | 0, true /* main_thread_p */); |
559e7e50 EZ |
1648 | DWORD exit_status = current_event.u.ExitProcess.dwExitCode; |
1649 | /* If the exit status looks like a fatal exception, but we | |
1650 | don't recognize the exception's code, make the original | |
1651 | exit status value available, to avoid losing | |
1652 | information. */ | |
1653 | int exit_signal | |
1654 | = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1; | |
1655 | if (exit_signal == -1) | |
1656 | { | |
1657 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1658 | ourstatus->value.integer = exit_status; | |
1659 | } | |
1660 | else | |
1661 | { | |
1662 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1663 | ourstatus->value.sig = gdb_signal_from_host (exit_signal); | |
1664 | } | |
8ed5b76e | 1665 | thread_id = current_event.dwThreadId; |
16d905e2 | 1666 | } |
8a892701 | 1667 | break; |
1e37c281 JM |
1668 | |
1669 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1670 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1671 | (unsigned) current_event.dwProcessId, |
1672 | (unsigned) current_event.dwThreadId, | |
1673 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1674 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1675 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1676 | break; |
bf469271 | 1677 | catch_errors (handle_load_dll); |
450005e7 CF |
1678 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1679 | ourstatus->value.integer = 0; | |
ab4ee614 | 1680 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1681 | break; |
1682 | ||
1683 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1684 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1685 | (unsigned) current_event.dwProcessId, |
1686 | (unsigned) current_event.dwThreadId, | |
1687 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1688 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1689 | break; |
bf469271 | 1690 | catch_errors (handle_unload_dll); |
de1b3c3d PA |
1691 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1692 | ourstatus->value.integer = 0; | |
ab4ee614 | 1693 | thread_id = current_event.dwThreadId; |
d3ff4a77 | 1694 | break; |
1e37c281 JM |
1695 | |
1696 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1697 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1698 | (unsigned) current_event.dwProcessId, |
1699 | (unsigned) current_event.dwThreadId, | |
1700 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1701 | if (saw_create != 1) |
1702 | break; | |
8d30e395 | 1703 | switch (handle_exception (ourstatus, debug_exceptions)) |
24cdb46e РИ |
1704 | { |
1705 | case HANDLE_EXCEPTION_UNHANDLED: | |
1706 | default: | |
1707 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1708 | break; | |
1709 | case HANDLE_EXCEPTION_HANDLED: | |
1710 | thread_id = current_event.dwThreadId; | |
1711 | break; | |
1712 | case HANDLE_EXCEPTION_IGNORED: | |
1713 | continue_status = DBG_CONTINUE; | |
1714 | break; | |
1715 | } | |
1e37c281 JM |
1716 | break; |
1717 | ||
581e13c1 | 1718 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1719 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1720 | (unsigned) current_event.dwProcessId, |
1721 | (unsigned) current_event.dwThreadId, | |
1722 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1723 | if (saw_create != 1) |
1724 | break; | |
e6ad66bd | 1725 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1726 | break; |
9d3789f7 | 1727 | |
1e37c281 | 1728 | default: |
dfe7f3ac CF |
1729 | if (saw_create != 1) |
1730 | break; | |
0c3d84be | 1731 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1732 | (unsigned) current_event.dwProcessId, |
1733 | (unsigned) current_event.dwThreadId); | |
1734 | printf_unfiltered (" unknown event code %u\n", | |
1735 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1736 | break; |
1737 | } | |
1738 | ||
e6ad66bd | 1739 | if (!thread_id || saw_create != 1) |
a244bdca | 1740 | { |
0a4afda3 TT |
1741 | CHECK (windows_continue (continue_status, desired_stop_thread_id, 0)); |
1742 | } | |
1743 | else if (desired_stop_thread_id != -1 && desired_stop_thread_id != thread_id) | |
1744 | { | |
1745 | /* Pending stop. See the comment by the definition of | |
1746 | "pending_stops" for details on why this is needed. */ | |
1747 | DEBUG_EVENTS (("get_windows_debug_event - " | |
1748 | "unexpected stop in 0x%x (expecting 0x%x)\n", | |
1749 | thread_id, desired_stop_thread_id)); | |
1750 | ||
1751 | if (current_event.dwDebugEventCode == EXCEPTION_DEBUG_EVENT | |
13302e95 HD |
1752 | && ((current_event.u.Exception.ExceptionRecord.ExceptionCode |
1753 | == EXCEPTION_BREAKPOINT) | |
1754 | || (current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1755 | == STATUS_WX86_BREAKPOINT)) | |
0a4afda3 TT |
1756 | && windows_initialization_done) |
1757 | { | |
28688adf TT |
1758 | ptid_t ptid = ptid_t (current_event.dwProcessId, thread_id, 0); |
1759 | th = thread_rec (ptid, INVALIDATE_CONTEXT); | |
0a4afda3 | 1760 | th->stopped_at_software_breakpoint = true; |
7be2bb4f | 1761 | th->pc_adjusted = false; |
0a4afda3 TT |
1762 | } |
1763 | pending_stops.push_back ({thread_id, *ourstatus, current_event}); | |
1764 | thread_id = 0; | |
1765 | CHECK (windows_continue (continue_status, desired_stop_thread_id, 0)); | |
a244bdca | 1766 | } |
450005e7 | 1767 | else |
9d3789f7 | 1768 | { |
7c7411bc | 1769 | inferior_ptid = ptid_t (current_event.dwProcessId, thread_id, 0); |
3c76026d TT |
1770 | current_windows_thread = th; |
1771 | if (!current_windows_thread) | |
1772 | current_windows_thread = thread_rec (inferior_ptid, | |
1773 | INVALIDATE_CONTEXT); | |
9d3789f7 | 1774 | } |
1e37c281 JM |
1775 | |
1776 | out: | |
e6ad66bd | 1777 | return thread_id; |
1e37c281 JM |
1778 | } |
1779 | ||
2dc38344 | 1780 | /* Wait for interesting events to occur in the target process. */ |
f6ac5f3d PA |
1781 | ptid_t |
1782 | windows_nat_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus, | |
1783 | int options) | |
24e60978 | 1784 | { |
2dc38344 | 1785 | int pid = -1; |
39f77062 | 1786 | |
24e60978 SC |
1787 | /* We loop when we get a non-standard exception rather than return |
1788 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1789 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1790 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1791 | isn't necessarily what you think it is. */ |
24e60978 SC |
1792 | |
1793 | while (1) | |
450005e7 | 1794 | { |
c57918b2 | 1795 | int retval; |
2b008701 | 1796 | |
695de547 CF |
1797 | /* If the user presses Ctrl-c while the debugger is waiting |
1798 | for an event, he expects the debugger to interrupt his program | |
1799 | and to get the prompt back. There are two possible situations: | |
1800 | ||
1801 | - The debugger and the program do not share the console, in | |
1802 | which case the Ctrl-c event only reached the debugger. | |
1803 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1804 | the inferior. Note that this case is working starting with |
1805 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1806 | inferior console. |
1807 | ||
1808 | - The debugger and the program share the same console, in which | |
1809 | case both debugger and inferior will receive the Ctrl-c event. | |
1810 | In that case the ctrl_c handler will ignore the event, as the | |
1811 | Ctrl-c event generated inside the inferior will trigger the | |
1812 | expected debug event. | |
1813 | ||
1814 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1815 | signal first and the delay until GDB receives that signal | |
1816 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1817 | after we have unblocked the CTRL+C handler. This would | |
1818 | lead to the debugger stopping prematurely while handling | |
1819 | the new-thread event that comes with the handling of the SIGINT | |
1820 | inside the inferior, and then stop again immediately when | |
1821 | the user tries to resume the execution in the inferior. | |
1822 | This is a classic race that we should try to fix one day. */ | |
1823 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
5b6d1e4f | 1824 | retval = get_windows_debug_event (pid, ourstatus); |
695de547 | 1825 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1826 | |
450005e7 | 1827 | if (retval) |
0a4afda3 TT |
1828 | { |
1829 | ptid_t result = ptid_t (current_event.dwProcessId, retval, 0); | |
1830 | ||
3c76026d | 1831 | if (current_windows_thread != nullptr) |
0a4afda3 | 1832 | { |
3c76026d | 1833 | current_windows_thread->stopped_at_software_breakpoint = false; |
0a4afda3 | 1834 | if (current_event.dwDebugEventCode == EXCEPTION_DEBUG_EVENT |
13302e95 HD |
1835 | && ((current_event.u.Exception.ExceptionRecord.ExceptionCode |
1836 | == EXCEPTION_BREAKPOINT) | |
1837 | || (current_event.u.Exception.ExceptionRecord.ExceptionCode | |
1838 | == STATUS_WX86_BREAKPOINT)) | |
0a4afda3 | 1839 | && windows_initialization_done) |
7be2bb4f TT |
1840 | { |
1841 | current_windows_thread->stopped_at_software_breakpoint | |
1842 | = true; | |
1843 | current_windows_thread->pc_adjusted = false; | |
1844 | } | |
0a4afda3 TT |
1845 | } |
1846 | ||
1847 | return result; | |
1848 | } | |
450005e7 CF |
1849 | else |
1850 | { | |
1851 | int detach = 0; | |
3cee93ac | 1852 | |
98bbd631 AC |
1853 | if (deprecated_ui_loop_hook != NULL) |
1854 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1855 | |
450005e7 | 1856 | if (detach) |
f6ac5f3d | 1857 | kill (); |
450005e7 CF |
1858 | } |
1859 | } | |
24e60978 SC |
1860 | } |
1861 | ||
ea39ad35 JB |
1862 | /* Iterate over all DLLs currently mapped by our inferior, and |
1863 | add them to our list of solibs. */ | |
94481b8c JB |
1864 | |
1865 | static void | |
ea39ad35 | 1866 | windows_add_all_dlls (void) |
94481b8c | 1867 | { |
94481b8c JB |
1868 | HMODULE dummy_hmodule; |
1869 | DWORD cb_needed; | |
1870 | HMODULE *hmodules; | |
1871 | int i; | |
1872 | ||
46f9f931 HD |
1873 | #ifdef __x86_64__ |
1874 | if (wow64_process) | |
1875 | { | |
1876 | if (EnumProcessModulesEx (current_process_handle, &dummy_hmodule, | |
1877 | sizeof (HMODULE), &cb_needed, | |
1878 | LIST_MODULES_32BIT) == 0) | |
1879 | return; | |
1880 | } | |
1881 | else | |
1882 | #endif | |
1883 | { | |
1884 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, | |
1885 | sizeof (HMODULE), &cb_needed) == 0) | |
1886 | return; | |
1887 | } | |
94481b8c JB |
1888 | |
1889 | if (cb_needed < 1) | |
1890 | return; | |
1891 | ||
1892 | hmodules = (HMODULE *) alloca (cb_needed); | |
46f9f931 HD |
1893 | #ifdef __x86_64__ |
1894 | if (wow64_process) | |
1895 | { | |
1896 | if (EnumProcessModulesEx (current_process_handle, hmodules, | |
1897 | cb_needed, &cb_needed, | |
1898 | LIST_MODULES_32BIT) == 0) | |
1899 | return; | |
1900 | } | |
1901 | else | |
1902 | #endif | |
1903 | { | |
1904 | if (EnumProcessModules (current_process_handle, hmodules, | |
1905 | cb_needed, &cb_needed) == 0) | |
1906 | return; | |
1907 | } | |
94481b8c | 1908 | |
d503b685 HD |
1909 | char system_dir[__PMAX]; |
1910 | char syswow_dir[__PMAX]; | |
1911 | size_t system_dir_len = 0; | |
ebea7626 HD |
1912 | bool convert_syswow_dir = false; |
1913 | #ifdef __x86_64__ | |
d503b685 | 1914 | if (wow64_process) |
ebea7626 | 1915 | #endif |
d503b685 | 1916 | { |
ebea7626 HD |
1917 | /* This fails on 32bit Windows because it has no SysWOW64 directory, |
1918 | and in this case a path conversion isn't necessary. */ | |
1919 | UINT len = GetSystemWow64DirectoryA (syswow_dir, sizeof (syswow_dir)); | |
1920 | if (len > 0) | |
1921 | { | |
1922 | /* Check that we have passed a large enough buffer. */ | |
1923 | gdb_assert (len < sizeof (syswow_dir)); | |
1924 | ||
1925 | len = GetSystemDirectoryA (system_dir, sizeof (system_dir)); | |
1926 | /* Error check. */ | |
1927 | gdb_assert (len != 0); | |
1928 | /* Check that we have passed a large enough buffer. */ | |
1929 | gdb_assert (len < sizeof (system_dir)); | |
1930 | ||
1931 | strcat (system_dir, "\\"); | |
1932 | strcat (syswow_dir, "\\"); | |
1933 | system_dir_len = strlen (system_dir); | |
1934 | ||
1935 | convert_syswow_dir = true; | |
1936 | } | |
1937 | ||
d503b685 | 1938 | } |
ea39ad35 | 1939 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
1940 | { |
1941 | MODULEINFO mi; | |
774f74c2 PM |
1942 | #ifdef __USEWIDE |
1943 | wchar_t dll_name[__PMAX]; | |
d503b685 | 1944 | char dll_name_mb[__PMAX]; |
774f74c2 | 1945 | #else |
94481b8c | 1946 | char dll_name[__PMAX]; |
774f74c2 | 1947 | #endif |
d503b685 | 1948 | const char *name; |
94481b8c JB |
1949 | if (GetModuleInformation (current_process_handle, hmodules[i], |
1950 | &mi, sizeof (mi)) == 0) | |
1951 | continue; | |
1952 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
1953 | dll_name, sizeof (dll_name)) == 0) | |
1954 | continue; | |
774f74c2 | 1955 | #ifdef __USEWIDE |
d503b685 HD |
1956 | wcstombs (dll_name_mb, dll_name, __PMAX); |
1957 | name = dll_name_mb; | |
774f74c2 PM |
1958 | #else |
1959 | name = dll_name; | |
1960 | #endif | |
ebea7626 | 1961 | /* Convert the DLL path of 32bit processes returned by |
d503b685 HD |
1962 | GetModuleFileNameEx from the 64bit system directory to the |
1963 | 32bit syswow64 directory if necessary. */ | |
1964 | std::string syswow_dll_path; | |
ebea7626 | 1965 | if (convert_syswow_dir |
d503b685 HD |
1966 | && strncasecmp (name, system_dir, system_dir_len) == 0 |
1967 | && strchr (name + system_dir_len, '\\') == nullptr) | |
1968 | { | |
1969 | syswow_dll_path = syswow_dir; | |
1970 | syswow_dll_path += name + system_dir_len; | |
1971 | name = syswow_dll_path.c_str(); | |
1972 | } | |
ea39ad35 JB |
1973 | |
1974 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
1975 | solib_end = solib_end->next; | |
94481b8c JB |
1976 | } |
1977 | } | |
1978 | ||
9d3789f7 | 1979 | static void |
dc05df57 | 1980 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 | 1981 | { |
fa4ba8da | 1982 | int i; |
d6b48e9c | 1983 | struct inferior *inf; |
9d3789f7 | 1984 | |
a493e3e2 | 1985 | last_sig = GDB_SIGNAL_0; |
bf25528d | 1986 | open_process_used = 0; |
fa4ba8da | 1987 | debug_registers_changed = 0; |
dfe7f3ac | 1988 | debug_registers_used = 0; |
fa4ba8da PM |
1989 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1990 | dr[i] = 0; | |
10325bc5 | 1991 | #ifdef __CYGWIN__ |
de1b3c3d | 1992 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1993 | #endif |
9d3789f7 CF |
1994 | current_event.dwProcessId = pid; |
1995 | memset (¤t_event, 0, sizeof (current_event)); | |
6a3cb8e8 PA |
1996 | if (!target_is_pushed (ops)) |
1997 | push_target (ops); | |
cb851954 | 1998 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1999 | windows_clear_solib (); |
88056fbb | 2000 | clear_proceed_status (0); |
9d3789f7 CF |
2001 | init_wait_for_inferior (); |
2002 | ||
46f9f931 HD |
2003 | #ifdef __x86_64__ |
2004 | ignore_first_breakpoint = !attaching && wow64_process; | |
2005 | ||
2006 | if (!wow64_process) | |
2007 | { | |
2008 | windows_set_context_register_offsets (amd64_mappings); | |
2009 | windows_set_segment_register_p (amd64_windows_segment_register_p); | |
2010 | } | |
2011 | else | |
2012 | #endif | |
2013 | { | |
2014 | windows_set_context_register_offsets (i386_mappings); | |
2015 | windows_set_segment_register_p (i386_windows_segment_register_p); | |
2016 | } | |
2017 | ||
6c95b8df PA |
2018 | inf = current_inferior (); |
2019 | inferior_appeared (inf, pid); | |
181e7f93 | 2020 | inf->attach_flag = attaching; |
7f9f62ba | 2021 | |
9f9d052e PM |
2022 | /* Make the new process the current inferior, so terminal handling |
2023 | can rely on it. When attaching, we don't know about any thread | |
2024 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 2025 | current thread until we report an event out of windows_wait. */ |
f2907e49 | 2026 | inferior_ptid = ptid_t (pid); |
9f9d052e | 2027 | |
223ffa71 TT |
2028 | target_terminal::init (); |
2029 | target_terminal::inferior (); | |
9d3789f7 | 2030 | |
16d905e2 | 2031 | windows_initialization_done = 0; |
c72f45d1 | 2032 | |
9d3789f7 CF |
2033 | while (1) |
2034 | { | |
c72f45d1 PA |
2035 | struct target_waitstatus status; |
2036 | ||
f6ac5f3d | 2037 | ops->wait (minus_one_ptid, &status, 0); |
c72f45d1 PA |
2038 | |
2039 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
2040 | events. */ | |
2041 | if (status.kind != TARGET_WAITKIND_LOADED | |
2042 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 2043 | break; |
c72f45d1 | 2044 | |
f6ac5f3d | 2045 | ops->resume (minus_one_ptid, 0, GDB_SIGNAL_0); |
9d3789f7 | 2046 | } |
eff8332b | 2047 | |
ea39ad35 | 2048 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
2049 | we can iterate over all DLLs and load them in. |
2050 | ||
2051 | We avoid doing it any earlier because, on certain versions of Windows, | |
2052 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
2053 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
2054 | include the DLL name, preventing us from creating an associated SO. | |
2055 | A possible explanation is that ntdll.dll might be mapped before | |
2056 | the SO info gets created by the Windows system -- ntdll.dll is | |
2057 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
2058 | do not seem to suffer from that problem. | |
2059 | ||
2060 | Rather than try to work around this sort of issue, it is much | |
2061 | simpler to just ignore DLL load/unload events during the startup | |
2062 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 2063 | windows_add_all_dlls (); |
94481b8c | 2064 | |
16d905e2 | 2065 | windows_initialization_done = 1; |
9d3789f7 CF |
2066 | return; |
2067 | } | |
2068 | ||
616a9dc4 CV |
2069 | /* Try to set or remove a user privilege to the current process. Return -1 |
2070 | if that fails, the previous setting of that privilege otherwise. | |
2071 | ||
2072 | This code is copied from the Cygwin source code and rearranged to allow | |
2073 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 2074 | available on NT/2K/XP. */ |
616a9dc4 CV |
2075 | static int |
2076 | set_process_privilege (const char *privilege, BOOL enable) | |
2077 | { | |
616a9dc4 CV |
2078 | HANDLE token_hdl = NULL; |
2079 | LUID restore_priv; | |
2080 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
2081 | int ret = -1; | |
2082 | DWORD size; | |
2083 | ||
616a9dc4 CV |
2084 | if (!OpenProcessToken (GetCurrentProcess (), |
2085 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
2086 | &token_hdl)) | |
2087 | goto out; | |
2088 | ||
418c6cb3 | 2089 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
2090 | goto out; |
2091 | ||
2092 | new_priv.PrivilegeCount = 1; | |
2093 | new_priv.Privileges[0].Luid = restore_priv; | |
2094 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
2095 | ||
2096 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 2097 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
2098 | goto out; |
2099 | #if 0 | |
2100 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
2101 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 2102 | windows_attach(). */ |
616a9dc4 | 2103 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 2104 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
2105 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
2106 | goto out; | |
2107 | #endif | |
2108 | ||
2109 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
2110 | ||
2111 | out: | |
2112 | if (token_hdl) | |
2113 | CloseHandle (token_hdl); | |
2114 | ||
2115 | return ret; | |
2116 | } | |
2117 | ||
02cc9f49 | 2118 | /* Attach to process PID, then initialize for debugging it. */ |
f6ac5f3d PA |
2119 | |
2120 | void | |
2121 | windows_nat_target::attach (const char *args, int from_tty) | |
24e60978 SC |
2122 | { |
2123 | BOOL ok; | |
559e75c0 | 2124 | DWORD pid; |
24e60978 | 2125 | |
74164c56 | 2126 | pid = parse_pid_to_attach (args); |
24e60978 | 2127 | |
616a9dc4 CV |
2128 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
2129 | { | |
2130 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
2131 | printf_unfiltered ("This can cause attach to " |
2132 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
2133 | } |
2134 | ||
dc05df57 | 2135 | windows_init_thread_list (); |
9d3789f7 | 2136 | ok = DebugActiveProcess (pid); |
91a175b3 | 2137 | saw_create = 0; |
24e60978 | 2138 | |
10325bc5 | 2139 | #ifdef __CYGWIN__ |
24e60978 | 2140 | if (!ok) |
baa93fa6 | 2141 | { |
581e13c1 | 2142 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
2143 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
2144 | ||
2145 | if (pid > 0) | |
2146 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
2147 | } |
2148 | #endif | |
baa93fa6 | 2149 | |
10325bc5 | 2150 | if (!ok) |
c9739b6a TT |
2151 | error (_("Can't attach to process %u (error %u)"), |
2152 | (unsigned) pid, (unsigned) GetLastError ()); | |
24e60978 | 2153 | |
2b008701 | 2154 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 2155 | |
24e60978 SC |
2156 | if (from_tty) |
2157 | { | |
d9fa87f4 | 2158 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2159 | |
2160 | if (exec_file) | |
2161 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
a068643d | 2162 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2163 | else |
2164 | printf_unfiltered ("Attaching to %s\n", | |
a068643d | 2165 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2166 | } |
2167 | ||
46f9f931 HD |
2168 | #ifdef __x86_64__ |
2169 | HANDLE h = OpenProcess (PROCESS_QUERY_INFORMATION, FALSE, pid); | |
2170 | if (h != NULL) | |
2171 | { | |
2172 | BOOL wow64; | |
2173 | if (IsWow64Process (h, &wow64)) | |
2174 | wow64_process = wow64; | |
2175 | CloseHandle (h); | |
2176 | } | |
2177 | #endif | |
2178 | ||
f6ac5f3d | 2179 | do_initial_windows_stuff (this, pid, 1); |
223ffa71 | 2180 | target_terminal::ours (); |
24e60978 SC |
2181 | } |
2182 | ||
f6ac5f3d PA |
2183 | void |
2184 | windows_nat_target::detach (inferior *inf, int from_tty) | |
24e60978 | 2185 | { |
02cc9f49 CV |
2186 | int detached = 1; |
2187 | ||
8473b447 | 2188 | ptid_t ptid = minus_one_ptid; |
f6ac5f3d | 2189 | resume (ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 2190 | |
2b008701 CF |
2191 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
2192 | { | |
d50a0ce2 CV |
2193 | error (_("Can't detach process %u (error %u)"), |
2194 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 2195 | detached = 0; |
02cc9f49 | 2196 | } |
2b008701 CF |
2197 | DebugSetProcessKillOnExit (FALSE); |
2198 | ||
02cc9f49 | 2199 | if (detached && from_tty) |
24e60978 | 2200 | { |
a121b7c1 | 2201 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2202 | if (exec_file == 0) |
2203 | exec_file = ""; | |
d50a0ce2 CV |
2204 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
2205 | (unsigned) current_event.dwProcessId); | |
24e60978 | 2206 | } |
7f9f62ba | 2207 | |
df7e5265 | 2208 | x86_cleanup_dregs (); |
39f77062 | 2209 | inferior_ptid = null_ptid; |
b7a08269 | 2210 | detach_inferior (inf); |
7f9f62ba | 2211 | |
f6ac5f3d | 2212 | maybe_unpush_target (); |
24e60978 SC |
2213 | } |
2214 | ||
47f7ffdb JB |
2215 | /* Try to determine the executable filename. |
2216 | ||
2217 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
2218 | ||
2219 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
2220 | this function returns nonzero. | |
2221 | ||
2222 | Otherwise, this function returns zero and the contents of | |
2223 | EXE_NAME_RET is undefined. */ | |
2224 | ||
2225 | static int | |
2226 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
2227 | { | |
2228 | DWORD len; | |
2229 | HMODULE dh_buf; | |
2230 | DWORD cbNeeded; | |
2231 | ||
2232 | cbNeeded = 0; | |
46f9f931 HD |
2233 | #ifdef __x86_64__ |
2234 | if (wow64_process) | |
2235 | { | |
2236 | if (!EnumProcessModulesEx (current_process_handle, &dh_buf, | |
2237 | sizeof (HMODULE), &cbNeeded, | |
2238 | LIST_MODULES_32BIT) || !cbNeeded) | |
2239 | return 0; | |
2240 | } | |
2241 | else | |
2242 | #endif | |
2243 | { | |
2244 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
2245 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
2246 | return 0; | |
2247 | } | |
47f7ffdb JB |
2248 | |
2249 | /* We know the executable is always first in the list of modules, | |
2250 | which we just fetched. So no need to fetch more. */ | |
2251 | ||
2252 | #ifdef __CYGWIN__ | |
2253 | { | |
2254 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
2255 | the filename into a temporary buffer first, and then convert it | |
2256 | to POSIX format into the destination buffer. */ | |
0ae534d2 | 2257 | cygwin_buf_t *pathbuf = (cygwin_buf_t *) alloca (exe_name_max_len * sizeof (cygwin_buf_t)); |
47f7ffdb JB |
2258 | |
2259 | len = GetModuleFileNameEx (current_process_handle, | |
2260 | dh_buf, pathbuf, exe_name_max_len); | |
2261 | if (len == 0) | |
2262 | error (_("Error getting executable filename: %u."), | |
2263 | (unsigned) GetLastError ()); | |
2264 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
2265 | exe_name_max_len) < 0) | |
2266 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
2267 | } | |
2268 | #else | |
2269 | len = GetModuleFileNameEx (current_process_handle, | |
2270 | dh_buf, exe_name_ret, exe_name_max_len); | |
2271 | if (len == 0) | |
2272 | error (_("Error getting executable filename: %u."), | |
2273 | (unsigned) GetLastError ()); | |
2274 | #endif | |
2275 | ||
2276 | return 1; /* success */ | |
2277 | } | |
2278 | ||
2279 | /* The pid_to_exec_file target_ops method for this platform. */ | |
2280 | ||
f6ac5f3d PA |
2281 | char * |
2282 | windows_nat_target::pid_to_exec_file (int pid) | |
47216e51 | 2283 | { |
b3c613f2 | 2284 | static char path[__PMAX]; |
10325bc5 | 2285 | #ifdef __CYGWIN__ |
581e13c1 | 2286 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
2287 | int nchars; |
2288 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
2289 | |
2290 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
2291 | nchars = readlink (procexe, path, sizeof(path)); |
2292 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 2293 | { |
33605d39 CF |
2294 | path[nchars] = '\0'; /* Got it */ |
2295 | return path; | |
47216e51 | 2296 | } |
10325bc5 PA |
2297 | #endif |
2298 | ||
33605d39 | 2299 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 2300 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 2301 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
2302 | path[0] = '\0'; |
2303 | ||
2304 | return path; | |
47216e51 CV |
2305 | } |
2306 | ||
24e60978 SC |
2307 | /* Print status information about what we're accessing. */ |
2308 | ||
f6ac5f3d PA |
2309 | void |
2310 | windows_nat_target::files_info () | |
24e60978 | 2311 | { |
181e7f93 PA |
2312 | struct inferior *inf = current_inferior (); |
2313 | ||
24e60978 | 2314 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 | 2315 | inf->attach_flag ? "attached" : "child", |
a068643d | 2316 | target_pid_to_str (inferior_ptid).c_str ()); |
24e60978 SC |
2317 | } |
2318 | ||
cd44747c PM |
2319 | /* Modify CreateProcess parameters for use of a new separate console. |
2320 | Parameters are: | |
2321 | *FLAGS: DWORD parameter for general process creation flags. | |
2322 | *SI: STARTUPINFO structure, for which the console window size and | |
2323 | console buffer size is filled in if GDB is running in a console. | |
2324 | to create the new console. | |
2325 | The size of the used font is not available on all versions of | |
2326 | Windows OS. Furthermore, the current font might not be the default | |
2327 | font, but this is still better than before. | |
2328 | If the windows and buffer sizes are computed, | |
2329 | SI->DWFLAGS is changed so that this information is used | |
2330 | by CreateProcess function. */ | |
2331 | ||
2332 | static void | |
2333 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
2334 | { | |
2335 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
2336 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
2337 | ||
2338 | if (hconsole != INVALID_HANDLE_VALUE) | |
2339 | { | |
2340 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2341 | COORD font_size; | |
2342 | CONSOLE_FONT_INFO cfi; | |
2343 | ||
2344 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2345 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2346 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2347 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2348 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2349 | if (font_size.X) | |
2350 | si->dwXSize *= font_size.X; | |
2351 | else | |
2352 | si->dwXSize *= 8; | |
2353 | if (font_size.Y) | |
2354 | si->dwYSize *= font_size.Y; | |
2355 | else | |
2356 | si->dwYSize *= 12; | |
2357 | si->dwXCountChars = sbinfo.dwSize.X; | |
2358 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2359 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2360 | } | |
2361 | *flags |= CREATE_NEW_CONSOLE; | |
2362 | } | |
2363 | ||
c93dbcba EZ |
2364 | #ifndef __CYGWIN__ |
2365 | /* Function called by qsort to sort environment strings. */ | |
2366 | ||
2367 | static int | |
2368 | envvar_cmp (const void *a, const void *b) | |
2369 | { | |
2370 | const char **p = (const char **) a; | |
2371 | const char **q = (const char **) b; | |
2372 | return strcasecmp (*p, *q); | |
2373 | } | |
2374 | #endif | |
2375 | ||
b7ff339d CV |
2376 | #ifdef __CYGWIN__ |
2377 | static void | |
2378 | clear_win32_environment (char **env) | |
2379 | { | |
2380 | int i; | |
2381 | size_t len; | |
2382 | wchar_t *copy = NULL, *equalpos; | |
2383 | ||
2384 | for (i = 0; env[i] && *env[i]; i++) | |
2385 | { | |
2386 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2387 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2388 | mbstowcs (copy, env[i], len); | |
2389 | equalpos = wcschr (copy, L'='); | |
2390 | if (equalpos) | |
2391 | *equalpos = L'\0'; | |
2392 | SetEnvironmentVariableW (copy, NULL); | |
2393 | } | |
2394 | xfree (copy); | |
2395 | } | |
2396 | #endif | |
2397 | ||
8ba42bc5 EZ |
2398 | #ifndef __CYGWIN__ |
2399 | ||
2400 | /* Redirection of inferior I/O streams for native MS-Windows programs. | |
2401 | Unlike on Unix, where this is handled by invoking the inferior via | |
2402 | the shell, on MS-Windows we need to emulate the cmd.exe shell. | |
2403 | ||
2404 | The official documentation of the cmd.exe redirection features is here: | |
2405 | ||
2406 | http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/redirection.mspx | |
2407 | ||
2408 | (That page talks about Windows XP, but there's no newer | |
2409 | documentation, so we assume later versions of cmd.exe didn't change | |
2410 | anything.) | |
2411 | ||
2412 | Caveat: the documentation on that page seems to include a few lies. | |
2413 | For example, it describes strange constructs 1<&2 and 2<&1, which | |
2414 | seem to work only when 1>&2 resp. 2>&1 would make sense, and so I | |
2415 | think the cmd.exe parser of the redirection symbols simply doesn't | |
2416 | care about the < vs > distinction in these cases. Therefore, the | |
2417 | supported features are explicitly documented below. | |
2418 | ||
2419 | The emulation below aims at supporting all the valid use cases | |
2420 | supported by cmd.exe, which include: | |
2421 | ||
2422 | < FILE redirect standard input from FILE | |
2423 | 0< FILE redirect standard input from FILE | |
2424 | <&N redirect standard input from file descriptor N | |
2425 | 0<&N redirect standard input from file descriptor N | |
2426 | > FILE redirect standard output to FILE | |
2427 | >> FILE append standard output to FILE | |
2428 | 1>> FILE append standard output to FILE | |
2429 | >&N redirect standard output to file descriptor N | |
2430 | 1>&N redirect standard output to file descriptor N | |
2431 | >>&N append standard output to file descriptor N | |
2432 | 1>>&N append standard output to file descriptor N | |
2433 | 2> FILE redirect standard error to FILE | |
2434 | 2>> FILE append standard error to FILE | |
2435 | 2>&N redirect standard error to file descriptor N | |
2436 | 2>>&N append standard error to file descriptor N | |
2437 | ||
2438 | Note that using N > 2 in the above construct is supported, but | |
2439 | requires that the corresponding file descriptor be open by some | |
2440 | means elsewhere or outside GDB. Also note that using ">&0" or | |
2441 | "<&2" will generally fail, because the file descriptor redirected | |
2442 | from is normally open in an incompatible mode (e.g., FD 0 is open | |
2443 | for reading only). IOW, use of such tricks is not recommended; | |
2444 | you are on your own. | |
2445 | ||
2446 | We do NOT support redirection of file descriptors above 2, as in | |
2447 | "3>SOME-FILE", because MinGW compiled programs don't (supporting | |
2448 | that needs special handling in the startup code that MinGW | |
2449 | doesn't have). Pipes are also not supported. | |
2450 | ||
2451 | As for invalid use cases, where the redirection contains some | |
2452 | error, the emulation below will detect that and produce some | |
2453 | error and/or failure. But the behavior in those cases is not | |
2454 | bug-for-bug compatible with what cmd.exe does in those cases. | |
2455 | That's because what cmd.exe does then is not well defined, and | |
2456 | seems to be a side effect of the cmd.exe parsing of the command | |
2457 | line more than anything else. For example, try redirecting to an | |
2458 | invalid file name, as in "> foo:bar". | |
2459 | ||
2460 | There are also minor syntactic deviations from what cmd.exe does | |
2461 | in some corner cases. For example, it doesn't support the likes | |
2462 | of "> &foo" to mean redirect to file named literally "&foo"; we | |
2463 | do support that here, because that, too, sounds like some issue | |
2464 | with the cmd.exe parser. Another nicety is that we support | |
2465 | redirection targets that use file names with forward slashes, | |
2466 | something cmd.exe doesn't -- this comes in handy since GDB | |
2467 | file-name completion can be used when typing the command line for | |
2468 | the inferior. */ | |
2469 | ||
2470 | /* Support routines for redirecting standard handles of the inferior. */ | |
2471 | ||
2472 | /* Parse a single redirection spec, open/duplicate the specified | |
2473 | file/fd, and assign the appropriate value to one of the 3 standard | |
2474 | file descriptors. */ | |
2475 | static int | |
2476 | redir_open (const char *redir_string, int *inp, int *out, int *err) | |
2477 | { | |
2478 | int *fd, ref_fd = -2; | |
2479 | int mode; | |
2480 | const char *fname = redir_string + 1; | |
2481 | int rc = *redir_string; | |
2482 | ||
2483 | switch (rc) | |
2484 | { | |
2485 | case '0': | |
2486 | fname++; | |
2487 | /* FALLTHROUGH */ | |
2488 | case '<': | |
2489 | fd = inp; | |
2490 | mode = O_RDONLY; | |
2491 | break; | |
2492 | case '1': case '2': | |
2493 | fname++; | |
2494 | /* FALLTHROUGH */ | |
2495 | case '>': | |
2496 | fd = (rc == '2') ? err : out; | |
2497 | mode = O_WRONLY | O_CREAT; | |
2498 | if (*fname == '>') | |
2499 | { | |
2500 | fname++; | |
2501 | mode |= O_APPEND; | |
2502 | } | |
2503 | else | |
2504 | mode |= O_TRUNC; | |
2505 | break; | |
2506 | default: | |
2507 | return -1; | |
2508 | } | |
2509 | ||
2510 | if (*fname == '&' && '0' <= fname[1] && fname[1] <= '9') | |
2511 | { | |
2512 | /* A reference to a file descriptor. */ | |
2513 | char *fdtail; | |
2514 | ref_fd = (int) strtol (fname + 1, &fdtail, 10); | |
2515 | if (fdtail > fname + 1 && *fdtail == '\0') | |
2516 | { | |
2517 | /* Don't allow redirection when open modes are incompatible. */ | |
2518 | if ((ref_fd == 0 && (fd == out || fd == err)) | |
2519 | || ((ref_fd == 1 || ref_fd == 2) && fd == inp)) | |
2520 | { | |
2521 | errno = EPERM; | |
2522 | return -1; | |
2523 | } | |
2524 | if (ref_fd == 0) | |
2525 | ref_fd = *inp; | |
2526 | else if (ref_fd == 1) | |
2527 | ref_fd = *out; | |
2528 | else if (ref_fd == 2) | |
2529 | ref_fd = *err; | |
2530 | } | |
2531 | else | |
2532 | { | |
2533 | errno = EBADF; | |
2534 | return -1; | |
2535 | } | |
2536 | } | |
2537 | else | |
2538 | fname++; /* skip the separator space */ | |
2539 | /* If the descriptor is already open, close it. This allows | |
2540 | multiple specs of redirections for the same stream, which is | |
2541 | somewhat nonsensical, but still valid and supported by cmd.exe. | |
2542 | (But cmd.exe only opens a single file in this case, the one | |
2543 | specified by the last redirection spec on the command line.) */ | |
2544 | if (*fd >= 0) | |
2545 | _close (*fd); | |
2546 | if (ref_fd == -2) | |
2547 | { | |
2548 | *fd = _open (fname, mode, _S_IREAD | _S_IWRITE); | |
2549 | if (*fd < 0) | |
2550 | return -1; | |
2551 | } | |
2552 | else if (ref_fd == -1) | |
2553 | *fd = -1; /* reset to default destination */ | |
2554 | else | |
2555 | { | |
2556 | *fd = _dup (ref_fd); | |
2557 | if (*fd < 0) | |
2558 | return -1; | |
2559 | } | |
2560 | /* _open just sets a flag for O_APPEND, which won't be passed to the | |
2561 | inferior, so we need to actually move the file pointer. */ | |
2562 | if ((mode & O_APPEND) != 0) | |
2563 | _lseek (*fd, 0L, SEEK_END); | |
2564 | return 0; | |
2565 | } | |
2566 | ||
2567 | /* Canonicalize a single redirection spec and set up the corresponding | |
2568 | file descriptor as specified. */ | |
2569 | static int | |
2570 | redir_set_redirection (const char *s, int *inp, int *out, int *err) | |
2571 | { | |
2572 | char buf[__PMAX + 2 + 5]; /* extra space for quotes & redirection string */ | |
2573 | char *d = buf; | |
2574 | const char *start = s; | |
2575 | int quote = 0; | |
2576 | ||
2577 | *d++ = *s++; /* copy the 1st character, < or > or a digit */ | |
2578 | if ((*start == '>' || *start == '1' || *start == '2') | |
2579 | && *s == '>') | |
2580 | { | |
2581 | *d++ = *s++; | |
2582 | if (*s == '>' && *start != '>') | |
2583 | *d++ = *s++; | |
2584 | } | |
2585 | else if (*start == '0' && *s == '<') | |
2586 | *d++ = *s++; | |
2587 | /* cmd.exe recognizes "&N" only immediately after the redirection symbol. */ | |
2588 | if (*s != '&') | |
2589 | { | |
2590 | while (isspace (*s)) /* skip whitespace before file name */ | |
2591 | s++; | |
2592 | *d++ = ' '; /* separate file name with a single space */ | |
2593 | } | |
2594 | ||
2595 | /* Copy the file name. */ | |
2596 | while (*s) | |
2597 | { | |
2598 | /* Remove quoting characters from the file name in buf[]. */ | |
2599 | if (*s == '"') /* could support '..' quoting here */ | |
2600 | { | |
2601 | if (!quote) | |
2602 | quote = *s++; | |
2603 | else if (*s == quote) | |
2604 | { | |
2605 | quote = 0; | |
2606 | s++; | |
2607 | } | |
2608 | else | |
2609 | *d++ = *s++; | |
2610 | } | |
2611 | else if (*s == '\\') | |
2612 | { | |
2613 | if (s[1] == '"') /* could support '..' here */ | |
2614 | s++; | |
2615 | *d++ = *s++; | |
2616 | } | |
2617 | else if (isspace (*s) && !quote) | |
2618 | break; | |
2619 | else | |
2620 | *d++ = *s++; | |
2621 | if (d - buf >= sizeof (buf) - 1) | |
2622 | { | |
2623 | errno = ENAMETOOLONG; | |
2624 | return 0; | |
2625 | } | |
2626 | } | |
2627 | *d = '\0'; | |
2628 | ||
2629 | /* Windows doesn't allow redirection characters in file names, so we | |
2630 | can bail out early if they use them, or if there's no target file | |
2631 | name after the redirection symbol. */ | |
2632 | if (d[-1] == '>' || d[-1] == '<') | |
2633 | { | |
2634 | errno = ENOENT; | |
2635 | return 0; | |
2636 | } | |
2637 | if (redir_open (buf, inp, out, err) == 0) | |
2638 | return s - start; | |
2639 | return 0; | |
2640 | } | |
2641 | ||
2642 | /* Parse the command line for redirection specs and prepare the file | |
2643 | descriptors for the 3 standard streams accordingly. */ | |
2644 | static bool | |
2645 | redirect_inferior_handles (const char *cmd_orig, char *cmd, | |
2646 | int *inp, int *out, int *err) | |
2647 | { | |
2648 | const char *s = cmd_orig; | |
2649 | char *d = cmd; | |
2650 | int quote = 0; | |
2651 | bool retval = false; | |
2652 | ||
2653 | while (isspace (*s)) | |
2654 | *d++ = *s++; | |
2655 | ||
2656 | while (*s) | |
2657 | { | |
2658 | if (*s == '"') /* could also support '..' quoting here */ | |
2659 | { | |
2660 | if (!quote) | |
2661 | quote = *s; | |
2662 | else if (*s == quote) | |
2663 | quote = 0; | |
2664 | } | |
2665 | else if (*s == '\\') | |
2666 | { | |
2667 | if (s[1] == '"') /* escaped quote char */ | |
2668 | s++; | |
2669 | } | |
2670 | else if (!quote) | |
2671 | { | |
2672 | /* Process a single redirection candidate. */ | |
2673 | if (*s == '<' || *s == '>' | |
2674 | || ((*s == '1' || *s == '2') && s[1] == '>') | |
2675 | || (*s == '0' && s[1] == '<')) | |
2676 | { | |
2677 | int skip = redir_set_redirection (s, inp, out, err); | |
2678 | ||
2679 | if (skip <= 0) | |
2680 | return false; | |
2681 | retval = true; | |
2682 | s += skip; | |
2683 | } | |
2684 | } | |
2685 | if (*s) | |
2686 | *d++ = *s++; | |
2687 | } | |
2688 | *d = '\0'; | |
2689 | return retval; | |
2690 | } | |
2691 | #endif /* !__CYGWIN__ */ | |
2692 | ||
dc05df57 | 2693 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2694 | EXEC_FILE is the file to run. |
2695 | ALLARGS is a string containing the arguments to the program. | |
2696 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2697 | ||
f6ac5f3d PA |
2698 | void |
2699 | windows_nat_target::create_inferior (const char *exec_file, | |
2700 | const std::string &origallargs, | |
2701 | char **in_env, int from_tty) | |
24e60978 | 2702 | { |
b3c613f2 | 2703 | STARTUPINFO si; |
41b4aadc | 2704 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2705 | cygwin_buf_t real_path[__PMAX]; |
2706 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d092c5a2 | 2707 | cygwin_buf_t infcwd[__PMAX]; |
d0d0ab16 | 2708 | const char *sh; |
b3c613f2 CF |
2709 | cygwin_buf_t *toexec; |
2710 | cygwin_buf_t *cygallargs; | |
2711 | cygwin_buf_t *args; | |
b7ff339d CV |
2712 | char **old_env = NULL; |
2713 | PWCHAR w32_env; | |
d0d0ab16 | 2714 | size_t len; |
2becadee CF |
2715 | int tty; |
2716 | int ostdin, ostdout, ostderr; | |
8ba42bc5 | 2717 | #else /* !__CYGWIN__ */ |
b3c613f2 | 2718 | char shell[__PMAX]; /* Path to shell */ |
5430098f | 2719 | const char *toexec; |
8ba42bc5 EZ |
2720 | char *args, *allargs_copy; |
2721 | size_t args_len, allargs_len; | |
2722 | int fd_inp = -1, fd_out = -1, fd_err = -1; | |
2723 | HANDLE tty = INVALID_HANDLE_VALUE; | |
8ba42bc5 | 2724 | bool redirected = false; |
c93dbcba EZ |
2725 | char *w32env; |
2726 | char *temp; | |
2727 | size_t envlen; | |
2728 | int i; | |
2729 | size_t envsize; | |
2730 | char **env; | |
8ba42bc5 | 2731 | #endif /* !__CYGWIN__ */ |
096c92dd | 2732 | const char *allargs = origallargs.c_str (); |
d0d0ab16 CV |
2733 | PROCESS_INFORMATION pi; |
2734 | BOOL ret; | |
2735 | DWORD flags = 0; | |
3cb3b8df | 2736 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2737 | |
2738 | if (!exec_file) | |
8a3fe4f8 | 2739 | error (_("No executable specified, use `target exec'.")); |
24e60978 | 2740 | |
d092c5a2 SDJ |
2741 | const char *inferior_cwd = get_inferior_cwd (); |
2742 | std::string expanded_infcwd; | |
2743 | if (inferior_cwd != NULL) | |
2744 | { | |
2745 | expanded_infcwd = gdb_tilde_expand (inferior_cwd); | |
2746 | /* Mirror slashes on inferior's cwd. */ | |
2747 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), | |
2748 | '/', '\\'); | |
2749 | inferior_cwd = expanded_infcwd.c_str (); | |
2750 | } | |
2751 | ||
24e60978 SC |
2752 | memset (&si, 0, sizeof (si)); |
2753 | si.cb = sizeof (si); | |
2754 | ||
d0d0ab16 CV |
2755 | if (new_group) |
2756 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2757 | ||
2758 | if (new_console) | |
cd44747c | 2759 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2760 | |
10325bc5 | 2761 | #ifdef __CYGWIN__ |
349b409f | 2762 | if (!useshell) |
dfe7f3ac | 2763 | { |
d0d0ab16 CV |
2764 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2765 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2766 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2767 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2768 | toexec = real_path; |
b3c613f2 | 2769 | #ifdef __USEWIDE |
d0d0ab16 CV |
2770 | len = mbstowcs (NULL, allargs, 0) + 1; |
2771 | if (len == (size_t) -1) | |
2772 | error (_("Error starting executable: %d"), errno); | |
2773 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2774 | mbstowcs (cygallargs, allargs, len); | |
8ba42bc5 | 2775 | #else /* !__USEWIDE */ |
60c5c021 | 2776 | cygallargs = allargs; |
b3c613f2 | 2777 | #endif |
dfe7f3ac CF |
2778 | } |
2779 | else | |
2780 | { | |
974e6844 | 2781 | sh = get_shell (); |
b3c613f2 | 2782 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2783 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2784 | #ifdef __USEWIDE |
d0d0ab16 CV |
2785 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2786 | + mbstowcs (NULL, allargs, 0) + 2; | |
2787 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2788 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2789 | #else /* !__USEWIDE */ |
08850b56 PM |
2790 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2791 | + strlen (allargs) + 2); | |
2792 | cygallargs = (char *) alloca (len); | |
2793 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2794 | #endif /* __USEWIDE */ |
dfe7f3ac | 2795 | toexec = shell; |
d0d0ab16 | 2796 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2797 | } |
b3c613f2 | 2798 | |
d092c5a2 SDJ |
2799 | if (inferior_cwd != NULL |
2800 | && cygwin_conv_path (CCP_POSIX_TO_WIN_W, inferior_cwd, | |
2801 | infcwd, strlen (inferior_cwd)) < 0) | |
2802 | error (_("Error converting inferior cwd: %d"), errno); | |
2803 | ||
b3c613f2 CF |
2804 | #ifdef __USEWIDE |
2805 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2806 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2807 | wcscpy (args, toexec); |
2808 | wcscat (args, L" "); | |
2809 | wcscat (args, cygallargs); | |
8ba42bc5 | 2810 | #else /* !__USEWIDE */ |
b3c613f2 CF |
2811 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); |
2812 | strcpy (args, toexec); | |
2813 | strcat (args, " "); | |
2814 | strcat (args, cygallargs); | |
8ba42bc5 | 2815 | #endif /* !__USEWIDE */ |
b3c613f2 | 2816 | |
b7ff339d CV |
2817 | #ifdef CW_CVT_ENV_TO_WINENV |
2818 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2819 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2820 | if (w32_env != (PWCHAR) -1) | |
2821 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2822 | else | |
2823 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
8ba42bc5 | 2824 | #endif /* CW_CVT_ENV_TO_WINENV */ |
b7ff339d CV |
2825 | { |
2826 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2827 | clear_win32_environment (environ); | |
2828 | /* Prepare the environment vars for CreateProcess. */ | |
2829 | old_env = environ; | |
2830 | environ = in_env; | |
2831 | cygwin_internal (CW_SYNC_WINENV); | |
2832 | w32_env = NULL; | |
2833 | } | |
1750a5ef | 2834 | |
2becadee CF |
2835 | if (!inferior_io_terminal) |
2836 | tty = ostdin = ostdout = ostderr = -1; | |
2837 | else | |
2838 | { | |
2839 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2840 | if (tty < 0) | |
2841 | { | |
2842 | print_sys_errmsg (inferior_io_terminal, errno); | |
2843 | ostdin = ostdout = ostderr = -1; | |
2844 | } | |
2845 | else | |
2846 | { | |
2847 | ostdin = dup (0); | |
2848 | ostdout = dup (1); | |
2849 | ostderr = dup (2); | |
2850 | dup2 (tty, 0); | |
2851 | dup2 (tty, 1); | |
2852 | dup2 (tty, 2); | |
2853 | } | |
2854 | } | |
d0d0ab16 CV |
2855 | |
2856 | windows_init_thread_list (); | |
b3c613f2 CF |
2857 | ret = CreateProcess (0, |
2858 | args, /* command line */ | |
2859 | NULL, /* Security */ | |
2860 | NULL, /* thread */ | |
2861 | TRUE, /* inherit handles */ | |
2862 | flags, /* start flags */ | |
b7ff339d | 2863 | w32_env, /* environment */ |
d092c5a2 SDJ |
2864 | inferior_cwd != NULL ? infcwd : NULL, /* current |
2865 | directory */ | |
b3c613f2 CF |
2866 | &si, |
2867 | &pi); | |
b7ff339d CV |
2868 | if (w32_env) |
2869 | /* Just free the Win32 environment, if it could be created. */ | |
2870 | free (w32_env); | |
2871 | else | |
2872 | { | |
2873 | /* Reset all environment variables to avoid leftover on next run. */ | |
2874 | clear_win32_environment (in_env); | |
2875 | /* Restore normal GDB environment variables. */ | |
2876 | environ = old_env; | |
2877 | cygwin_internal (CW_SYNC_WINENV); | |
2878 | } | |
2879 | ||
d0d0ab16 CV |
2880 | if (tty >= 0) |
2881 | { | |
6af79d7b | 2882 | ::close (tty); |
d0d0ab16 CV |
2883 | dup2 (ostdin, 0); |
2884 | dup2 (ostdout, 1); | |
2885 | dup2 (ostderr, 2); | |
6af79d7b JT |
2886 | ::close (ostdin); |
2887 | ::close (ostdout); | |
2888 | ::close (ostderr); | |
d0d0ab16 | 2889 | } |
8ba42bc5 EZ |
2890 | #else /* !__CYGWIN__ */ |
2891 | allargs_len = strlen (allargs); | |
2892 | allargs_copy = strcpy ((char *) alloca (allargs_len + 1), allargs); | |
2893 | if (strpbrk (allargs_copy, "<>") != NULL) | |
2894 | { | |
2895 | int e = errno; | |
2896 | errno = 0; | |
2897 | redirected = | |
2898 | redirect_inferior_handles (allargs, allargs_copy, | |
2899 | &fd_inp, &fd_out, &fd_err); | |
2900 | if (errno) | |
6d91ce9a | 2901 | warning (_("Error in redirection: %s."), safe_strerror (errno)); |
8ba42bc5 EZ |
2902 | else |
2903 | errno = e; | |
2904 | allargs_len = strlen (allargs_copy); | |
2905 | } | |
2906 | /* If not all the standard streams are redirected by the command | |
2907 | line, use inferior_io_terminal for those which aren't. */ | |
2908 | if (inferior_io_terminal | |
2909 | && !(fd_inp >= 0 && fd_out >= 0 && fd_err >= 0)) | |
41b4aadc CF |
2910 | { |
2911 | SECURITY_ATTRIBUTES sa; | |
2912 | sa.nLength = sizeof(sa); | |
2913 | sa.lpSecurityDescriptor = 0; | |
2914 | sa.bInheritHandle = TRUE; | |
2915 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2916 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2917 | if (tty == INVALID_HANDLE_VALUE) | |
2918 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2919 | inferior_io_terminal, (unsigned) GetLastError ()); | |
8ba42bc5 EZ |
2920 | } |
2921 | if (redirected || tty != INVALID_HANDLE_VALUE) | |
2922 | { | |
2923 | if (fd_inp >= 0) | |
2924 | si.hStdInput = (HANDLE) _get_osfhandle (fd_inp); | |
2925 | else if (tty != INVALID_HANDLE_VALUE) | |
2926 | si.hStdInput = tty; | |
41b4aadc | 2927 | else |
8ba42bc5 EZ |
2928 | si.hStdInput = GetStdHandle (STD_INPUT_HANDLE); |
2929 | if (fd_out >= 0) | |
2930 | si.hStdOutput = (HANDLE) _get_osfhandle (fd_out); | |
2931 | else if (tty != INVALID_HANDLE_VALUE) | |
2932 | si.hStdOutput = tty; | |
2933 | else | |
2934 | si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE); | |
2935 | if (fd_err >= 0) | |
2936 | si.hStdError = (HANDLE) _get_osfhandle (fd_err); | |
2937 | else if (tty != INVALID_HANDLE_VALUE) | |
2938 | si.hStdError = tty; | |
2939 | else | |
2940 | si.hStdError = GetStdHandle (STD_ERROR_HANDLE); | |
2941 | si.dwFlags |= STARTF_USESTDHANDLES; | |
41b4aadc | 2942 | } |
2becadee | 2943 | |
8ba42bc5 EZ |
2944 | toexec = exec_file; |
2945 | /* Build the command line, a space-separated list of tokens where | |
2946 | the first token is the name of the module to be executed. | |
2947 | To avoid ambiguities introduced by spaces in the module name, | |
2948 | we quote it. */ | |
2949 | args_len = strlen (toexec) + 2 /* quotes */ + allargs_len + 2; | |
2950 | args = (char *) alloca (args_len); | |
2951 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs_copy); | |
2952 | ||
2953 | flags |= DEBUG_ONLY_THIS_PROCESS; | |
2954 | ||
c93dbcba EZ |
2955 | /* CreateProcess takes the environment list as a null terminated set of |
2956 | strings (i.e. two nulls terminate the list). */ | |
2957 | ||
2958 | /* Get total size for env strings. */ | |
2959 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2960 | envlen += strlen (in_env[i]) + 1; | |
2961 | ||
2962 | envsize = sizeof (in_env[0]) * (i + 1); | |
2963 | env = (char **) alloca (envsize); | |
2964 | memcpy (env, in_env, envsize); | |
2965 | /* Windows programs expect the environment block to be sorted. */ | |
2966 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2967 | ||
0ae1c716 | 2968 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
2969 | |
2970 | /* Copy env strings into new buffer. */ | |
2971 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2972 | { | |
2973 | strcpy (temp, env[i]); | |
2974 | temp += strlen (temp) + 1; | |
2975 | } | |
2976 | ||
2977 | /* Final nil string to terminate new env. */ | |
2978 | *temp = 0; | |
2979 | ||
dc05df57 | 2980 | windows_init_thread_list (); |
d0d0ab16 CV |
2981 | ret = CreateProcessA (0, |
2982 | args, /* command line */ | |
2983 | NULL, /* Security */ | |
2984 | NULL, /* thread */ | |
2985 | TRUE, /* inherit handles */ | |
2986 | flags, /* start flags */ | |
c93dbcba | 2987 | w32env, /* environment */ |
d092c5a2 | 2988 | inferior_cwd, /* current directory */ |
d0d0ab16 CV |
2989 | &si, |
2990 | &pi); | |
41b4aadc CF |
2991 | if (tty != INVALID_HANDLE_VALUE) |
2992 | CloseHandle (tty); | |
8ba42bc5 EZ |
2993 | if (fd_inp >= 0) |
2994 | _close (fd_inp); | |
2995 | if (fd_out >= 0) | |
2996 | _close (fd_out); | |
2997 | if (fd_err >= 0) | |
2998 | _close (fd_err); | |
2999 | #endif /* !__CYGWIN__ */ | |
2becadee | 3000 | |
24e60978 | 3001 | if (!ret) |
d50a0ce2 | 3002 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 3003 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 3004 | |
46f9f931 HD |
3005 | #ifdef __x86_64__ |
3006 | BOOL wow64; | |
3007 | if (IsWow64Process (pi.hProcess, &wow64)) | |
3008 | wow64_process = wow64; | |
3009 | #endif | |
3010 | ||
c1766e7d PM |
3011 | CloseHandle (pi.hThread); |
3012 | CloseHandle (pi.hProcess); | |
3013 | ||
dfe7f3ac CF |
3014 | if (useshell && shell[0] != '\0') |
3015 | saw_create = -1; | |
3016 | else | |
3017 | saw_create = 0; | |
3018 | ||
f6ac5f3d | 3019 | do_initial_windows_stuff (this, pi.dwProcessId, 0); |
d3a09475 | 3020 | |
17617f2d | 3021 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
3022 | } |
3023 | ||
f6ac5f3d PA |
3024 | void |
3025 | windows_nat_target::mourn_inferior () | |
24e60978 | 3026 | { |
17617f2d | 3027 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 3028 | x86_cleanup_dregs(); |
bf25528d CF |
3029 | if (open_process_used) |
3030 | { | |
3031 | CHECK (CloseHandle (current_process_handle)); | |
3032 | open_process_used = 0; | |
3033 | } | |
7928d571 | 3034 | siginfo_er.ExceptionCode = 0; |
f6ac5f3d | 3035 | inf_child_target::mourn_inferior (); |
24e60978 SC |
3036 | } |
3037 | ||
24e60978 | 3038 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 3039 | ^C on the controlling terminal. */ |
24e60978 | 3040 | |
f6ac5f3d PA |
3041 | void |
3042 | windows_nat_target::interrupt () | |
24e60978 | 3043 | { |
1ef980b9 | 3044 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 3045 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 3046 | registers_changed (); /* refresh register state */ |
24e60978 SC |
3047 | } |
3048 | ||
44f38867 PA |
3049 | /* Helper for windows_xfer_partial that handles memory transfers. |
3050 | Arguments are like target_xfer_partial. */ | |
3051 | ||
9b409511 | 3052 | static enum target_xfer_status |
44f38867 | 3053 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 3054 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 3055 | { |
5732a500 | 3056 | SIZE_T done = 0; |
44f38867 | 3057 | BOOL success; |
9e52adf9 | 3058 | DWORD lasterror = 0; |
44f38867 PA |
3059 | |
3060 | if (writebuf != NULL) | |
24e60978 | 3061 | { |
a2388568 | 3062 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 3063 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3064 | success = WriteProcessMemory (current_process_handle, |
3065 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
3066 | len, &done); | |
9e52adf9 | 3067 | if (!success) |
7126d5c8 | 3068 | lasterror = GetLastError (); |
2b008701 | 3069 | FlushInstructionCache (current_process_handle, |
2c647436 | 3070 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
3071 | } |
3072 | else | |
3073 | { | |
a2388568 | 3074 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 3075 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
3076 | success = ReadProcessMemory (current_process_handle, |
3077 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
3078 | len, &done); | |
9e52adf9 | 3079 | if (!success) |
7126d5c8 | 3080 | lasterror = GetLastError (); |
24e60978 | 3081 | } |
9b409511 | 3082 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 3083 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 3084 | return TARGET_XFER_OK; |
9e52adf9 | 3085 | else |
9b409511 | 3086 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
3087 | } |
3088 | ||
f6ac5f3d PA |
3089 | void |
3090 | windows_nat_target::kill () | |
24e60978 | 3091 | { |
3cee93ac CF |
3092 | CHECK (TerminateProcess (current_process_handle, 0)); |
3093 | ||
b5edcb45 ILT |
3094 | for (;;) |
3095 | { | |
17617f2d | 3096 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 3097 | break; |
0a4afda3 | 3098 | if (!wait_for_debug_event (¤t_event, INFINITE)) |
b5edcb45 | 3099 | break; |
3cee93ac | 3100 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
3101 | break; |
3102 | } | |
3103 | ||
9eee20eb | 3104 | target_mourn_inferior (inferior_ptid); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
3105 | } |
3106 | ||
f6ac5f3d PA |
3107 | void |
3108 | windows_nat_target::close () | |
24e60978 | 3109 | { |
dc05df57 | 3110 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
e99b03dc | 3111 | inferior_ptid.pid ())); |
24e60978 | 3112 | } |
1ef980b9 | 3113 | |
581e13c1 | 3114 | /* Convert pid to printable format. */ |
a068643d | 3115 | std::string |
f6ac5f3d | 3116 | windows_nat_target::pid_to_str (ptid_t ptid) |
24e60978 | 3117 | { |
7c7411bc TT |
3118 | if (ptid.lwp () != 0) |
3119 | return string_printf ("Thread %d.0x%lx", ptid.pid (), ptid.lwp ()); | |
2dc38344 PA |
3120 | |
3121 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
3122 | } |
3123 | ||
9b409511 | 3124 | static enum target_xfer_status |
dc05df57 | 3125 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
3126 | enum target_object object, const char *annex, |
3127 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
3128 | ULONGEST offset, ULONGEST len, | |
3129 | ULONGEST *xfered_len) | |
3cb8e7f6 | 3130 | { |
de1b3c3d PA |
3131 | struct obstack obstack; |
3132 | const char *buf; | |
3133 | LONGEST len_avail; | |
3cb8e7f6 | 3134 | struct so_list *so; |
3cb8e7f6 | 3135 | |
de1b3c3d | 3136 | if (writebuf) |
2ed4b548 | 3137 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 3138 | |
de1b3c3d PA |
3139 | obstack_init (&obstack); |
3140 | obstack_grow_str (&obstack, "<library-list>\n"); | |
3141 | for (so = solib_start.next; so; so = so->next) | |
d0e449a1 SM |
3142 | { |
3143 | lm_info_windows *li = (lm_info_windows *) so->lm_info; | |
3144 | ||
3145 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) | |
3146 | (uintptr_t) li->load_addr, | |
c162ed3e | 3147 | &li->text_offset, |
d0e449a1 SM |
3148 | target_gdbarch (), &obstack); |
3149 | } | |
de1b3c3d | 3150 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 3151 | |
0ae1c716 | 3152 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
3153 | len_avail = strlen (buf); |
3154 | if (offset >= len_avail) | |
49dc7f4b PM |
3155 | len= 0; |
3156 | else | |
3157 | { | |
3158 | if (len > len_avail - offset) | |
3159 | len = len_avail - offset; | |
3160 | memcpy (readbuf, buf + offset, len); | |
3161 | } | |
3cb8e7f6 | 3162 | |
de1b3c3d | 3163 | obstack_free (&obstack, NULL); |
9b409511 | 3164 | *xfered_len = (ULONGEST) len; |
0837c976 | 3165 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
3166 | } |
3167 | ||
7928d571 HD |
3168 | /* Helper for windows_nat_target::xfer_partial that handles signal info. */ |
3169 | ||
3170 | static enum target_xfer_status | |
3171 | windows_xfer_siginfo (gdb_byte *readbuf, ULONGEST offset, ULONGEST len, | |
3172 | ULONGEST *xfered_len) | |
3173 | { | |
46f9f931 HD |
3174 | char *buf = (char *) &siginfo_er; |
3175 | size_t bufsize = sizeof (siginfo_er); | |
3176 | ||
3177 | #ifdef __x86_64__ | |
3178 | EXCEPTION_RECORD32 er32; | |
3179 | if (wow64_process) | |
3180 | { | |
3181 | buf = (char *) &er32; | |
3182 | bufsize = sizeof (er32); | |
3183 | ||
3184 | er32.ExceptionCode = siginfo_er.ExceptionCode; | |
3185 | er32.ExceptionFlags = siginfo_er.ExceptionFlags; | |
3186 | er32.ExceptionRecord = (uintptr_t) siginfo_er.ExceptionRecord; | |
3187 | er32.ExceptionAddress = (uintptr_t) siginfo_er.ExceptionAddress; | |
3188 | er32.NumberParameters = siginfo_er.NumberParameters; | |
3189 | int i; | |
3190 | for (i = 0; i < EXCEPTION_MAXIMUM_PARAMETERS; i++) | |
3191 | er32.ExceptionInformation[i] = siginfo_er.ExceptionInformation[i]; | |
3192 | } | |
3193 | #endif | |
3194 | ||
7928d571 HD |
3195 | if (siginfo_er.ExceptionCode == 0) |
3196 | return TARGET_XFER_E_IO; | |
3197 | ||
3198 | if (readbuf == nullptr) | |
3199 | return TARGET_XFER_E_IO; | |
3200 | ||
46f9f931 | 3201 | if (offset > bufsize) |
7928d571 HD |
3202 | return TARGET_XFER_E_IO; |
3203 | ||
46f9f931 HD |
3204 | if (offset + len > bufsize) |
3205 | len = bufsize - offset; | |
7928d571 | 3206 | |
46f9f931 | 3207 | memcpy (readbuf, buf + offset, len); |
7928d571 HD |
3208 | *xfered_len = len; |
3209 | ||
3210 | return TARGET_XFER_OK; | |
3211 | } | |
3212 | ||
f6ac5f3d PA |
3213 | enum target_xfer_status |
3214 | windows_nat_target::xfer_partial (enum target_object object, | |
3215 | const char *annex, gdb_byte *readbuf, | |
2f4f025f TT |
3216 | const gdb_byte *writebuf, ULONGEST offset, |
3217 | ULONGEST len, ULONGEST *xfered_len) | |
3cb8e7f6 | 3218 | { |
de1b3c3d | 3219 | switch (object) |
3cb8e7f6 | 3220 | { |
de1b3c3d | 3221 | case TARGET_OBJECT_MEMORY: |
9b409511 | 3222 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
3223 | |
3224 | case TARGET_OBJECT_LIBRARIES: | |
f6ac5f3d | 3225 | return windows_xfer_shared_libraries (this, object, annex, readbuf, |
9b409511 | 3226 | writebuf, offset, len, xfered_len); |
3929abe9 | 3227 | |
7928d571 HD |
3228 | case TARGET_OBJECT_SIGNAL_INFO: |
3229 | return windows_xfer_siginfo (readbuf, offset, len, xfered_len); | |
3230 | ||
de1b3c3d | 3231 | default: |
2f4f025f | 3232 | if (beneath () == NULL) |
178d6a63 JB |
3233 | { |
3234 | /* This can happen when requesting the transfer of unsupported | |
3235 | objects before a program has been started (and therefore | |
3236 | with the current_target having no target beneath). */ | |
3237 | return TARGET_XFER_E_IO; | |
3238 | } | |
2f4f025f TT |
3239 | return beneath ()->xfer_partial (object, annex, |
3240 | readbuf, writebuf, offset, len, | |
3241 | xfered_len); | |
3929abe9 | 3242 | } |
02c5aecd CF |
3243 | } |
3244 | ||
711e434b PM |
3245 | /* Provide thread local base, i.e. Thread Information Block address. |
3246 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
3247 | ||
57810aa7 | 3248 | bool |
f6ac5f3d | 3249 | windows_nat_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) |
711e434b | 3250 | { |
876d1cd7 | 3251 | windows_thread_info *th; |
711e434b | 3252 | |
28688adf | 3253 | th = thread_rec (ptid, DONT_INVALIDATE_CONTEXT); |
711e434b | 3254 | if (th == NULL) |
57810aa7 | 3255 | return false; |
711e434b PM |
3256 | |
3257 | if (addr != NULL) | |
3258 | *addr = th->thread_local_base; | |
3259 | ||
57810aa7 | 3260 | return true; |
711e434b PM |
3261 | } |
3262 | ||
f6ac5f3d PA |
3263 | ptid_t |
3264 | windows_nat_target::get_ada_task_ptid (long lwp, long thread) | |
1e2f1c5c | 3265 | { |
7c7411bc | 3266 | return ptid_t (inferior_ptid.pid (), lwp, 0); |
1e2f1c5c JB |
3267 | } |
3268 | ||
24cdb46e РИ |
3269 | /* Implementation of the to_thread_name method. */ |
3270 | ||
f6ac5f3d PA |
3271 | const char * |
3272 | windows_nat_target::thread_name (struct thread_info *thr) | |
24cdb46e | 3273 | { |
28688adf | 3274 | return thread_rec (thr->ptid, DONT_INVALIDATE_CONTEXT)->name.get (); |
24cdb46e РИ |
3275 | } |
3276 | ||
24e60978 | 3277 | |
6c265988 | 3278 | void _initialize_windows_nat (); |
24e60978 | 3279 | void |
6c265988 | 3280 | _initialize_windows_nat () |
24e60978 | 3281 | { |
df7e5265 GB |
3282 | x86_dr_low.set_control = cygwin_set_dr7; |
3283 | x86_dr_low.set_addr = cygwin_set_dr; | |
3284 | x86_dr_low.get_addr = cygwin_get_dr; | |
3285 | x86_dr_low.get_status = cygwin_get_dr6; | |
3286 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 3287 | |
df7e5265 GB |
3288 | /* x86_dr_low.debug_register_length field is set by |
3289 | calling x86_set_debug_register_length function | |
51a9c8c5 | 3290 | in processor windows specific native file. */ |
fa58ee11 | 3291 | |
d9f719f1 | 3292 | add_inf_child_target (&the_windows_nat_target); |
1ef980b9 | 3293 | |
d0d0ab16 CV |
3294 | #ifdef __CYGWIN__ |
3295 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
3296 | #endif | |
3297 | ||
463888ab РИ |
3298 | add_com ("signal-event", class_run, signal_event_command, _("\ |
3299 | Signal a crashed process with event ID, to allow its debugging.\n\ | |
3300 | This command is needed in support of setting up GDB as JIT debugger on \ | |
3301 | MS-Windows. The command should be invoked from the GDB command line using \ | |
3302 | the '-ex' command-line option. The ID of the event that blocks the \ | |
3303 | crashed process will be supplied by the Windows JIT debugging mechanism.")); | |
3304 | ||
10325bc5 | 3305 | #ifdef __CYGWIN__ |
5bf193a2 AC |
3306 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
3307 | Set use of shell to start subprocess."), _("\ | |
3308 | Show use of shell to start subprocess."), NULL, | |
3309 | NULL, | |
3310 | NULL, /* FIXME: i18n: */ | |
3311 | &setlist, &showlist); | |
3312 | ||
581e13c1 MS |
3313 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
3314 | &cygwin_exceptions, _("\ | |
09280ddf CF |
3315 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
3316 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
3317 | NULL, | |
3318 | NULL, /* FIXME: i18n: */ | |
3319 | &setlist, &showlist); | |
10325bc5 | 3320 | #endif |
09280ddf | 3321 | |
5bf193a2 AC |
3322 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
3323 | Set creation of new console when creating child process."), _("\ | |
3324 | Show creation of new console when creating child process."), NULL, | |
3325 | NULL, | |
3326 | NULL, /* FIXME: i18n: */ | |
3327 | &setlist, &showlist); | |
3328 | ||
3329 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
3330 | Set creation of new group when creating child process."), _("\ | |
3331 | Show creation of new group when creating child process."), NULL, | |
3332 | NULL, | |
3333 | NULL, /* FIXME: i18n: */ | |
3334 | &setlist, &showlist); | |
3335 | ||
3336 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
3337 | Set whether to display execution in child process."), _("\ | |
3338 | Show whether to display execution in child process."), NULL, | |
3339 | NULL, | |
3340 | NULL, /* FIXME: i18n: */ | |
3341 | &setlist, &showlist); | |
3342 | ||
3343 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
3344 | Set whether to display kernel events in child process."), _("\ | |
3345 | Show whether to display kernel events in child process."), NULL, | |
3346 | NULL, | |
3347 | NULL, /* FIXME: i18n: */ | |
3348 | &setlist, &showlist); | |
3349 | ||
3350 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
3351 | Set whether to display memory accesses in child process."), _("\ | |
3352 | Show whether to display memory accesses in child process."), NULL, | |
3353 | NULL, | |
3354 | NULL, /* FIXME: i18n: */ | |
3355 | &setlist, &showlist); | |
3356 | ||
3357 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
3358 | &debug_exceptions, _("\ | |
3359 | Set whether to display kernel exceptions in child process."), _("\ | |
3360 | Show whether to display kernel exceptions in child process."), NULL, | |
3361 | NULL, | |
3362 | NULL, /* FIXME: i18n: */ | |
3363 | &setlist, &showlist); | |
1ef980b9 | 3364 | |
711e434b | 3365 | init_w32_command_list (); |
c1748f97 PM |
3366 | |
3367 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 3368 | _("Display selectors infos."), |
c1748f97 | 3369 | &info_w32_cmdlist); |
24e60978 | 3370 | } |
3cee93ac | 3371 | |
fa4ba8da PM |
3372 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
3373 | ||
3374 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
3375 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 3376 | actually set up when windows_continue is called. */ |
9bb9e8ad | 3377 | static void |
fa4ba8da PM |
3378 | cygwin_set_dr (int i, CORE_ADDR addr) |
3379 | { | |
3380 | if (i < 0 || i > 3) | |
3381 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3382 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 3383 | dr[i] = addr; |
fa4ba8da PM |
3384 | debug_registers_changed = 1; |
3385 | debug_registers_used = 1; | |
3386 | } | |
3387 | ||
3388 | /* Pass the value VAL to the inferior in the DR7 debug control | |
3389 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 3390 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
3391 | static void |
3392 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 3393 | { |
9bb9e8ad | 3394 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
3395 | debug_registers_changed = 1; |
3396 | debug_registers_used = 1; | |
3397 | } | |
3398 | ||
7b50312a PA |
3399 | /* Get the value of debug register I from the inferior. */ |
3400 | ||
3401 | static CORE_ADDR | |
3402 | cygwin_get_dr (int i) | |
3403 | { | |
3404 | return dr[i]; | |
3405 | } | |
3406 | ||
fa4ba8da PM |
3407 | /* Get the value of the DR6 debug status register from the inferior. |
3408 | Here we just return the value stored in dr[6] | |
3409 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 3410 | static unsigned long |
fa4ba8da PM |
3411 | cygwin_get_dr6 (void) |
3412 | { | |
9bb9e8ad | 3413 | return (unsigned long) dr[6]; |
fa4ba8da PM |
3414 | } |
3415 | ||
7b50312a PA |
3416 | /* Get the value of the DR7 debug status register from the inferior. |
3417 | Here we just return the value stored in dr[7] by the last call to | |
3418 | thread_rec for current_event.dwThreadId id. */ | |
3419 | ||
3420 | static unsigned long | |
3421 | cygwin_get_dr7 (void) | |
3422 | { | |
3423 | return (unsigned long) dr[7]; | |
3424 | } | |
3425 | ||
2dc38344 | 3426 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 3427 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 3428 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
f6ac5f3d | 3429 | |
57810aa7 | 3430 | bool |
f6ac5f3d | 3431 | windows_nat_target::thread_alive (ptid_t ptid) |
3cee93ac | 3432 | { |
7c7411bc | 3433 | gdb_assert (ptid.lwp () != 0); |
39f77062 | 3434 | |
28688adf | 3435 | return (WaitForSingleObject (thread_rec (ptid, DONT_INVALIDATE_CONTEXT)->h, 0) |
8e61ebec | 3436 | != WAIT_OBJECT_0); |
3cee93ac CF |
3437 | } |
3438 | ||
6c265988 | 3439 | void _initialize_check_for_gdb_ini (); |
2a3d5645 | 3440 | void |
6c265988 | 3441 | _initialize_check_for_gdb_ini () |
2a3d5645 CF |
3442 | { |
3443 | char *homedir; | |
3444 | if (inhibit_gdbinit) | |
3445 | return; | |
3446 | ||
3447 | homedir = getenv ("HOME"); | |
3448 | if (homedir) | |
3449 | { | |
3450 | char *p; | |
3451 | char *oldini = (char *) alloca (strlen (homedir) + | |
1270fac6 | 3452 | sizeof ("gdb.ini") + 1); |
2a3d5645 CF |
3453 | strcpy (oldini, homedir); |
3454 | p = strchr (oldini, '\0'); | |
0ba1096a | 3455 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
3456 | *p++ = '/'; |
3457 | strcpy (p, "gdb.ini"); | |
3458 | if (access (oldini, 0) == 0) | |
3459 | { | |
3460 | int len = strlen (oldini); | |
1270fac6 | 3461 | char *newini = (char *) alloca (len + 2); |
08850b56 | 3462 | |
1270fac6 | 3463 | xsnprintf (newini, len + 2, "%.*s.gdbinit", |
08850b56 | 3464 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 3465 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
3466 | } |
3467 | } | |
3468 | } | |
33605d39 | 3469 | |
2b008701 | 3470 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 3471 | these functions could not be found. */ |
2b008701 CF |
3472 | static BOOL WINAPI |
3473 | bad_DebugActiveProcessStop (DWORD w) | |
3474 | { | |
3475 | return FALSE; | |
3476 | } | |
3477 | static BOOL WINAPI | |
3478 | bad_DebugBreakProcess (HANDLE w) | |
3479 | { | |
3480 | return FALSE; | |
3481 | } | |
3482 | static BOOL WINAPI | |
3483 | bad_DebugSetProcessKillOnExit (BOOL w) | |
3484 | { | |
3485 | return FALSE; | |
3486 | } | |
3487 | static BOOL WINAPI | |
3488 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
3489 | { | |
3490 | return FALSE; | |
3491 | } | |
b3c613f2 CF |
3492 | |
3493 | #ifdef __USEWIDE | |
2b008701 | 3494 | static DWORD WINAPI |
b3c613f2 | 3495 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
3496 | { |
3497 | return 0; | |
3498 | } | |
d0d0ab16 CV |
3499 | #else |
3500 | static DWORD WINAPI | |
b3c613f2 | 3501 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
3502 | { |
3503 | return 0; | |
3504 | } | |
3505 | #endif | |
b3c613f2 | 3506 | |
2b008701 CF |
3507 | static BOOL WINAPI |
3508 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
3509 | { | |
3510 | return FALSE; | |
3511 | } | |
3512 | ||
418c6cb3 CF |
3513 | static BOOL WINAPI |
3514 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
3515 | { | |
3516 | return FALSE; | |
3517 | } | |
3518 | ||
cd44747c PM |
3519 | static BOOL WINAPI |
3520 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
3521 | { | |
3522 | f->nFont = 0; | |
3523 | return 1; | |
3524 | } | |
3525 | static COORD WINAPI | |
3526 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
3527 | { | |
3528 | COORD size; | |
3529 | size.X = 8; | |
3530 | size.Y = 12; | |
3531 | return size; | |
3532 | } | |
3533 | ||
2b008701 | 3534 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 3535 | of Windows. */ |
d603d4b3 | 3536 | |
6c265988 | 3537 | void _initialize_loadable (); |
33605d39 | 3538 | void |
6c265988 | 3539 | _initialize_loadable () |
33605d39 | 3540 | { |
2b008701 CF |
3541 | HMODULE hm = NULL; |
3542 | ||
43499ea3 PA |
3543 | #define GPA(m, func) \ |
3544 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
3545 | ||
2b008701 CF |
3546 | hm = LoadLibrary ("kernel32.dll"); |
3547 | if (hm) | |
33605d39 | 3548 | { |
43499ea3 PA |
3549 | GPA (hm, DebugActiveProcessStop); |
3550 | GPA (hm, DebugBreakProcess); | |
3551 | GPA (hm, DebugSetProcessKillOnExit); | |
3552 | GPA (hm, GetConsoleFontSize); | |
3553 | GPA (hm, DebugActiveProcessStop); | |
3554 | GPA (hm, GetCurrentConsoleFont); | |
46f9f931 HD |
3555 | #ifdef __x86_64__ |
3556 | GPA (hm, Wow64SuspendThread); | |
3557 | GPA (hm, Wow64GetThreadContext); | |
3558 | GPA (hm, Wow64SetThreadContext); | |
3559 | GPA (hm, Wow64GetThreadSelectorEntry); | |
3560 | #endif | |
2b008701 | 3561 | } |
33605d39 | 3562 | |
2b008701 | 3563 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 3564 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
3565 | if (!DebugBreakProcess) |
3566 | DebugBreakProcess = bad_DebugBreakProcess; | |
3567 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 3568 | { |
b3c613f2 CF |
3569 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
3570 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 3571 | } |
cd44747c PM |
3572 | if (!GetConsoleFontSize) |
3573 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
3574 | if (!GetCurrentConsoleFont) | |
3575 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 3576 | |
2b008701 | 3577 | /* Load optional functions used for retrieving filename information |
581e13c1 | 3578 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
3579 | hm = LoadLibrary ("psapi.dll"); |
3580 | if (hm) | |
3581 | { | |
43499ea3 | 3582 | GPA (hm, EnumProcessModules); |
46f9f931 HD |
3583 | #ifdef __x86_64__ |
3584 | GPA (hm, EnumProcessModulesEx); | |
3585 | #endif | |
43499ea3 | 3586 | GPA (hm, GetModuleInformation); |
aec47d1d JB |
3587 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
3588 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
3589 | } |
3590 | ||
b3c613f2 | 3591 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
3592 | { |
3593 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 3594 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
3595 | EnumProcessModules = bad_EnumProcessModules; |
3596 | GetModuleInformation = bad_GetModuleInformation; | |
3597 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
3598 | /* This will probably fail on Windows 9x/Me. Let the user know |
3599 | that we're missing some functionality. */ | |
3600 | warning(_("\ | |
3601 | cannot automatically find executable file or library to read symbols.\n\ | |
3602 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
3603 | } |
3604 | ||
3605 | hm = LoadLibrary ("advapi32.dll"); | |
3606 | if (hm) | |
3607 | { | |
43499ea3 PA |
3608 | GPA (hm, OpenProcessToken); |
3609 | GPA (hm, LookupPrivilegeValueA); | |
3610 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 3611 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
3612 | else is needed. */ |
3613 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
3614 | || !AdjustTokenPrivileges) | |
b3c613f2 | 3615 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 3616 | } |
43499ea3 PA |
3617 | |
3618 | #undef GPA | |
33605d39 | 3619 | } |