Commit | Line | Data |
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dc05df57 | 1 | /* Target-vector operations for controlling windows child processes, for GDB. |
0a65a603 | 2 | |
b811d2c2 | 3 | Copyright (C) 1995-2020 Free Software Foundation, Inc. |
0a65a603 | 4 | |
e6433c28 | 5 | Contributed by Cygnus Solutions, A Red Hat Company. |
e88c49c3 | 6 | |
24e60978 SC |
7 | This file is part of GDB. |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
24e60978 SC |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
a9762ec7 | 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
24e60978 SC |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
24e60978 | 21 | |
dfe7f3ac | 22 | /* Originally by Steve Chamberlain, sac@cygnus.com */ |
24e60978 SC |
23 | |
24 | #include "defs.h" | |
25 | #include "frame.h" /* required by inferior.h */ | |
26 | #include "inferior.h" | |
45741a9c | 27 | #include "infrun.h" |
24e60978 | 28 | #include "target.h" |
24e60978 SC |
29 | #include "gdbcore.h" |
30 | #include "command.h" | |
fa58ee11 | 31 | #include "completer.h" |
4e052eda | 32 | #include "regcache.h" |
2a3d5645 | 33 | #include "top.h" |
403d9909 CF |
34 | #include <signal.h> |
35 | #include <sys/types.h> | |
36 | #include <fcntl.h> | |
403d9909 CF |
37 | #include <windows.h> |
38 | #include <imagehlp.h> | |
2b008701 | 39 | #include <psapi.h> |
10325bc5 | 40 | #ifdef __CYGWIN__ |
b7ff339d | 41 | #include <wchar.h> |
403d9909 | 42 | #include <sys/cygwin.h> |
b7ff339d | 43 | #include <cygwin/version.h> |
10325bc5 | 44 | #endif |
a1b85d28 | 45 | #include <algorithm> |
cad9cd60 | 46 | |
0ba1096a | 47 | #include "filenames.h" |
1ef980b9 SC |
48 | #include "symfile.h" |
49 | #include "objfiles.h" | |
92107356 | 50 | #include "gdb_bfd.h" |
de1b3c3d | 51 | #include "gdb_obstack.h" |
fdfa3315 | 52 | #include "gdbthread.h" |
24e60978 | 53 | #include "gdbcmd.h" |
1e37c281 | 54 | #include <unistd.h> |
4646aa9d | 55 | #include "exec.h" |
3ee6f623 | 56 | #include "solist.h" |
3cb8e7f6 | 57 | #include "solib.h" |
de1b3c3d | 58 | #include "xml-support.h" |
463888ab | 59 | #include "inttypes.h" |
24e60978 | 60 | |
6c7de422 MK |
61 | #include "i386-tdep.h" |
62 | #include "i387-tdep.h" | |
63 | ||
31b060a2 CF |
64 | #include "windows-tdep.h" |
65 | #include "windows-nat.h" | |
df7e5265 | 66 | #include "x86-nat.h" |
ecc13e53 | 67 | #include "complaints.h" |
51a9c8c5 | 68 | #include "inf-child.h" |
268a13a5 TT |
69 | #include "gdbsupport/gdb_tilde_expand.h" |
70 | #include "gdbsupport/pathstuff.h" | |
559e7e50 | 71 | #include "gdbsupport/gdb_wait.h" |
de1b3c3d | 72 | |
418c6cb3 | 73 | #define AdjustTokenPrivileges dyn_AdjustTokenPrivileges |
2b008701 CF |
74 | #define DebugActiveProcessStop dyn_DebugActiveProcessStop |
75 | #define DebugBreakProcess dyn_DebugBreakProcess | |
76 | #define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit | |
77 | #define EnumProcessModules dyn_EnumProcessModules | |
2b008701 | 78 | #define GetModuleInformation dyn_GetModuleInformation |
418c6cb3 CF |
79 | #define LookupPrivilegeValueA dyn_LookupPrivilegeValueA |
80 | #define OpenProcessToken dyn_OpenProcessToken | |
cd44747c PM |
81 | #define GetConsoleFontSize dyn_GetConsoleFontSize |
82 | #define GetCurrentConsoleFont dyn_GetCurrentConsoleFont | |
2b008701 | 83 | |
43499ea3 PA |
84 | typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL, |
85 | PTOKEN_PRIVILEGES, | |
86 | DWORD, PTOKEN_PRIVILEGES, | |
87 | PDWORD); | |
88 | static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges; | |
89 | ||
90 | typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD); | |
91 | static DebugActiveProcessStop_ftype *DebugActiveProcessStop; | |
92 | ||
93 | typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE); | |
94 | static DebugBreakProcess_ftype *DebugBreakProcess; | |
95 | ||
96 | typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL); | |
97 | static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit; | |
98 | ||
99 | typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD, | |
100 | LPDWORD); | |
101 | static EnumProcessModules_ftype *EnumProcessModules; | |
102 | ||
103 | typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE, | |
104 | LPMODULEINFO, DWORD); | |
105 | static GetModuleInformation_ftype *GetModuleInformation; | |
106 | ||
107 | typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID); | |
108 | static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA; | |
109 | ||
110 | typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE); | |
111 | static OpenProcessToken_ftype *OpenProcessToken; | |
112 | ||
113 | typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL, | |
114 | CONSOLE_FONT_INFO *); | |
115 | static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont; | |
116 | ||
117 | typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD); | |
118 | static GetConsoleFontSize_ftype *GetConsoleFontSize; | |
2b008701 | 119 | |
b3c613f2 CF |
120 | #undef STARTUPINFO |
121 | #undef CreateProcess | |
122 | #undef GetModuleFileNameEx | |
123 | ||
124 | #ifndef __CYGWIN__ | |
125 | # define __PMAX (MAX_PATH + 1) | |
43499ea3 PA |
126 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD); |
127 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
128 | # define STARTUPINFO STARTUPINFOA |
129 | # define CreateProcess CreateProcessA | |
130 | # define GetModuleFileNameEx_name "GetModuleFileNameExA" | |
131 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExA | |
132 | #else | |
133 | # define __PMAX PATH_MAX | |
581e13c1 | 134 | /* The starting and ending address of the cygwin1.dll text segment. */ |
b3c613f2 CF |
135 | static CORE_ADDR cygwin_load_start; |
136 | static CORE_ADDR cygwin_load_end; | |
b3c613f2 CF |
137 | # define __USEWIDE |
138 | typedef wchar_t cygwin_buf_t; | |
43499ea3 PA |
139 | typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, |
140 | LPWSTR, DWORD); | |
141 | static GetModuleFileNameEx_ftype *GetModuleFileNameEx; | |
b3c613f2 CF |
142 | # define STARTUPINFO STARTUPINFOW |
143 | # define CreateProcess CreateProcessW | |
144 | # define GetModuleFileNameEx_name "GetModuleFileNameExW" | |
145 | # define bad_GetModuleFileNameEx bad_GetModuleFileNameExW | |
10325bc5 | 146 | #endif |
a244bdca | 147 | |
581e13c1 MS |
148 | static int have_saved_context; /* True if we've saved context from a |
149 | cygwin signal. */ | |
15766370 | 150 | #ifdef __CYGWIN__ |
85102364 | 151 | static CONTEXT saved_context; /* Contains the saved context from a |
581e13c1 | 152 | cygwin signal. */ |
15766370 | 153 | #endif |
a244bdca | 154 | |
0714f9bf SS |
155 | /* If we're not using the old Cygwin header file set, define the |
156 | following which never should have been in the generic Win32 API | |
581e13c1 | 157 | headers in the first place since they were our own invention... */ |
0714f9bf | 158 | #ifndef _GNU_H_WINDOWS_H |
9d3789f7 | 159 | enum |
8e860359 CF |
160 | { |
161 | FLAG_TRACE_BIT = 0x100, | |
8e860359 | 162 | }; |
0714f9bf SS |
163 | #endif |
164 | ||
5851ab76 JB |
165 | #ifndef CONTEXT_EXTENDED_REGISTERS |
166 | /* This macro is only defined on ia32. It only makes sense on this target, | |
167 | so define it as zero if not already defined. */ | |
168 | #define CONTEXT_EXTENDED_REGISTERS 0 | |
169 | #endif | |
170 | ||
f0666312 JT |
171 | #define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \ |
172 | | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \ | |
173 | | CONTEXT_EXTENDED_REGISTERS | |
97da3b20 | 174 | |
41b4aadc | 175 | static uintptr_t dr[8]; |
87a45c96 CF |
176 | static int debug_registers_changed; |
177 | static int debug_registers_used; | |
16d905e2 CF |
178 | |
179 | static int windows_initialization_done; | |
6537bb24 | 180 | #define DR6_CLEAR_VALUE 0xffff0ff0 |
97da3b20 | 181 | |
24cdb46e РИ |
182 | /* The exception thrown by a program to tell the debugger the name of |
183 | a thread. The exception record contains an ID of a thread and a | |
184 | name to give it. This exception has no documented name, but MSDN | |
185 | dubs it "MS_VC_EXCEPTION" in one code example. */ | |
186 | #define MS_VC_EXCEPTION 0x406d1388 | |
187 | ||
188 | typedef enum | |
189 | { | |
190 | HANDLE_EXCEPTION_UNHANDLED = 0, | |
191 | HANDLE_EXCEPTION_HANDLED, | |
192 | HANDLE_EXCEPTION_IGNORED | |
193 | } handle_exception_result; | |
194 | ||
3cee93ac | 195 | /* The string sent by cygwin when it processes a signal. |
581e13c1 | 196 | FIXME: This should be in a cygwin include file. */ |
3929abe9 CF |
197 | #ifndef _CYGWIN_SIGNAL_STRING |
198 | #define _CYGWIN_SIGNAL_STRING "cYgSiGw00f" | |
199 | #endif | |
3cee93ac | 200 | |
29fe111d | 201 | #define CHECK(x) check (x, __FILE__,__LINE__) |
dfe7f3ac | 202 | #define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x |
4e52d31c PM |
203 | #define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x |
204 | #define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x | |
205 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x | |
24e60978 | 206 | |
9bb9e8ad PM |
207 | static void cygwin_set_dr (int i, CORE_ADDR addr); |
208 | static void cygwin_set_dr7 (unsigned long val); | |
a961bc18 | 209 | static CORE_ADDR cygwin_get_dr (int i); |
9bb9e8ad | 210 | static unsigned long cygwin_get_dr6 (void); |
a961bc18 | 211 | static unsigned long cygwin_get_dr7 (void); |
9bb9e8ad | 212 | |
a493e3e2 | 213 | static enum gdb_signal last_sig = GDB_SIGNAL_0; |
581e13c1 | 214 | /* Set if a signal was received from the debugged process. */ |
7393af7c | 215 | |
3cee93ac | 216 | /* Thread information structure used to track information that is |
6537bb24 | 217 | not available in gdb's thread structure. */ |
876d1cd7 | 218 | typedef struct windows_thread_info_struct |
3a4b77d8 | 219 | { |
876d1cd7 | 220 | struct windows_thread_info_struct *next; |
3a4b77d8 JM |
221 | DWORD id; |
222 | HANDLE h; | |
711e434b | 223 | CORE_ADDR thread_local_base; |
3a4b77d8 | 224 | char *name; |
6537bb24 | 225 | int suspended; |
3ade5333 | 226 | int reload_context; |
3a4b77d8 | 227 | CONTEXT context; |
8e860359 | 228 | } |
876d1cd7 | 229 | windows_thread_info; |
1e37c281 | 230 | |
876d1cd7 | 231 | static windows_thread_info thread_head; |
24e60978 | 232 | |
581e13c1 | 233 | /* The process and thread handles for the above context. */ |
24e60978 | 234 | |
3cee93ac CF |
235 | static DEBUG_EVENT current_event; /* The current debug event from |
236 | WaitForDebugEvent */ | |
237 | static HANDLE current_process_handle; /* Currently executing process */ | |
876d1cd7 | 238 | static windows_thread_info *current_thread; /* Info on currently selected thread */ |
24e60978 | 239 | |
581e13c1 | 240 | /* Counts of things. */ |
24e60978 SC |
241 | static int exception_count = 0; |
242 | static int event_count = 0; | |
dfe7f3ac | 243 | static int saw_create; |
bf25528d | 244 | static int open_process_used = 0; |
24e60978 | 245 | |
581e13c1 | 246 | /* User options. */ |
491144b5 | 247 | static bool new_console = false; |
10325bc5 | 248 | #ifdef __CYGWIN__ |
491144b5 | 249 | static bool cygwin_exceptions = false; |
10325bc5 | 250 | #endif |
491144b5 CB |
251 | static bool new_group = true; |
252 | static bool debug_exec = false; /* show execution */ | |
253 | static bool debug_events = false; /* show events from kernel */ | |
254 | static bool debug_memory = false; /* show target memory accesses */ | |
255 | static bool debug_exceptions = false; /* show target exceptions */ | |
256 | static bool useshell = false; /* use shell for subprocesses */ | |
dfe7f3ac | 257 | |
7e63b4e4 | 258 | /* This vector maps GDB's idea of a register's number into an offset |
dc05df57 | 259 | in the windows exception context vector. |
24e60978 | 260 | |
3cee93ac | 261 | It also contains the bit mask needed to load the register in question. |
24e60978 | 262 | |
7e63b4e4 JB |
263 | The contents of this table can only be computed by the units |
264 | that provide CPU-specific support for Windows native debugging. | |
265 | These units should set the table by calling | |
dc05df57 | 266 | windows_set_context_register_offsets. |
7e63b4e4 | 267 | |
24e60978 SC |
268 | One day we could read a reg, we could inspect the context we |
269 | already have loaded, if it doesn't have the bit set that we need, | |
270 | we read that set of registers in using GetThreadContext. If the | |
581e13c1 | 271 | context already contains what we need, we just unpack it. Then to |
24e60978 SC |
272 | write a register, first we have to ensure that the context contains |
273 | the other regs of the group, and then we copy the info in and set | |
581e13c1 | 274 | out bit. */ |
24e60978 | 275 | |
7e63b4e4 | 276 | static const int *mappings; |
d3a09475 | 277 | |
d40dc7a8 JB |
278 | /* The function to use in order to determine whether a register is |
279 | a segment register or not. */ | |
280 | static segment_register_p_ftype *segment_register_p; | |
281 | ||
73c13fe6 TT |
282 | /* See windows_nat_target::resume to understand why this is commented |
283 | out. */ | |
284 | #if 0 | |
24e60978 | 285 | /* This vector maps the target's idea of an exception (extracted |
581e13c1 | 286 | from the DEBUG_EVENT structure) to GDB's idea. */ |
24e60978 SC |
287 | |
288 | struct xlate_exception | |
289 | { | |
73c13fe6 | 290 | DWORD them; |
2ea28649 | 291 | enum gdb_signal us; |
24e60978 SC |
292 | }; |
293 | ||
73c13fe6 | 294 | static const struct xlate_exception xlate[] = |
24e60978 | 295 | { |
a493e3e2 PA |
296 | {EXCEPTION_ACCESS_VIOLATION, GDB_SIGNAL_SEGV}, |
297 | {STATUS_STACK_OVERFLOW, GDB_SIGNAL_SEGV}, | |
298 | {EXCEPTION_BREAKPOINT, GDB_SIGNAL_TRAP}, | |
299 | {DBG_CONTROL_C, GDB_SIGNAL_INT}, | |
300 | {EXCEPTION_SINGLE_STEP, GDB_SIGNAL_TRAP}, | |
73c13fe6 TT |
301 | {STATUS_FLOAT_DIVIDE_BY_ZERO, GDB_SIGNAL_FPE} |
302 | }; | |
24e60978 | 303 | |
73c13fe6 | 304 | #endif /* 0 */ |
f6ac5f3d PA |
305 | |
306 | struct windows_nat_target final : public x86_nat_target<inf_child_target> | |
307 | { | |
308 | void close () override; | |
309 | ||
310 | void attach (const char *, int) override; | |
311 | ||
312 | bool attach_no_wait () override | |
313 | { return true; } | |
314 | ||
315 | void detach (inferior *, int) override; | |
316 | ||
317 | void resume (ptid_t, int , enum gdb_signal) override; | |
318 | ||
319 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
320 | ||
321 | void fetch_registers (struct regcache *, int) override; | |
322 | void store_registers (struct regcache *, int) override; | |
323 | ||
324 | enum target_xfer_status xfer_partial (enum target_object object, | |
325 | const char *annex, | |
326 | gdb_byte *readbuf, | |
327 | const gdb_byte *writebuf, | |
328 | ULONGEST offset, ULONGEST len, | |
329 | ULONGEST *xfered_len) override; | |
330 | ||
331 | void files_info () override; | |
332 | ||
333 | void kill () override; | |
334 | ||
335 | void create_inferior (const char *, const std::string &, | |
336 | char **, int) override; | |
337 | ||
338 | void mourn_inferior () override; | |
339 | ||
57810aa7 | 340 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d | 341 | |
a068643d | 342 | std::string pid_to_str (ptid_t) override; |
f6ac5f3d PA |
343 | |
344 | void interrupt () override; | |
345 | ||
346 | char *pid_to_exec_file (int pid) override; | |
347 | ||
348 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
349 | ||
57810aa7 | 350 | bool get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; |
f6ac5f3d PA |
351 | |
352 | const char *thread_name (struct thread_info *) override; | |
5b6d1e4f PA |
353 | |
354 | int get_windows_debug_event (int pid, struct target_waitstatus *ourstatus); | |
f6ac5f3d PA |
355 | }; |
356 | ||
357 | static windows_nat_target the_windows_nat_target; | |
358 | ||
7e63b4e4 JB |
359 | /* Set the MAPPINGS static global to OFFSETS. |
360 | See the description of MAPPINGS for more details. */ | |
361 | ||
362 | void | |
dc05df57 | 363 | windows_set_context_register_offsets (const int *offsets) |
7e63b4e4 JB |
364 | { |
365 | mappings = offsets; | |
366 | } | |
367 | ||
d40dc7a8 JB |
368 | /* See windows-nat.h. */ |
369 | ||
370 | void | |
371 | windows_set_segment_register_p (segment_register_p_ftype *fun) | |
372 | { | |
373 | segment_register_p = fun; | |
374 | } | |
375 | ||
fa4ba8da PM |
376 | static void |
377 | check (BOOL ok, const char *file, int line) | |
378 | { | |
379 | if (!ok) | |
d50a0ce2 CV |
380 | printf_filtered ("error return %s:%d was %u\n", file, line, |
381 | (unsigned) GetLastError ()); | |
fa4ba8da PM |
382 | } |
383 | ||
6537bb24 PA |
384 | /* Find a thread record given a thread id. If GET_CONTEXT is not 0, |
385 | then also retrieve the context for this thread. If GET_CONTEXT is | |
386 | negative, then don't suspend the thread. */ | |
876d1cd7 | 387 | static windows_thread_info * |
3cee93ac | 388 | thread_rec (DWORD id, int get_context) |
24e60978 | 389 | { |
876d1cd7 | 390 | windows_thread_info *th; |
3cee93ac | 391 | |
3a4b77d8 | 392 | for (th = &thread_head; (th = th->next) != NULL;) |
3cee93ac CF |
393 | if (th->id == id) |
394 | { | |
6537bb24 | 395 | if (!th->suspended && get_context) |
3cee93ac | 396 | { |
8a892701 | 397 | if (get_context > 0 && id != current_event.dwThreadId) |
6537bb24 PA |
398 | { |
399 | if (SuspendThread (th->h) == (DWORD) -1) | |
400 | { | |
401 | DWORD err = GetLastError (); | |
22128028 | 402 | |
17617f2d EZ |
403 | /* We get Access Denied (5) when trying to suspend |
404 | threads that Windows started on behalf of the | |
405 | debuggee, usually when those threads are just | |
5d9c55d3 JT |
406 | about to exit. |
407 | We can get Invalid Handle (6) if the main thread | |
408 | has exited. */ | |
409 | if (err != ERROR_INVALID_HANDLE | |
410 | && err != ERROR_ACCESS_DENIED) | |
17617f2d EZ |
411 | warning (_("SuspendThread (tid=0x%x) failed." |
412 | " (winerr %u)"), | |
413 | (unsigned) id, (unsigned) err); | |
414 | th->suspended = -1; | |
6537bb24 | 415 | } |
17617f2d EZ |
416 | else |
417 | th->suspended = 1; | |
6537bb24 | 418 | } |
3cee93ac | 419 | else if (get_context < 0) |
6537bb24 | 420 | th->suspended = -1; |
3ade5333 | 421 | th->reload_context = 1; |
3cee93ac CF |
422 | } |
423 | return th; | |
424 | } | |
425 | ||
426 | return NULL; | |
427 | } | |
428 | ||
c559d709 JB |
429 | /* Add a thread to the thread list. |
430 | ||
431 | PTID is the ptid of the thread to be added. | |
432 | H is its Windows handle. | |
433 | TLB is its thread local base. | |
434 | MAIN_THREAD_P should be true if the thread to be added is | |
435 | the main thread, false otherwise. */ | |
436 | ||
876d1cd7 | 437 | static windows_thread_info * |
c559d709 | 438 | windows_add_thread (ptid_t ptid, HANDLE h, void *tlb, bool main_thread_p) |
3cee93ac | 439 | { |
876d1cd7 | 440 | windows_thread_info *th; |
2dc38344 PA |
441 | DWORD id; |
442 | ||
cc6bcb54 | 443 | gdb_assert (ptid.tid () != 0); |
2dc38344 | 444 | |
cc6bcb54 | 445 | id = ptid.tid (); |
3cee93ac CF |
446 | |
447 | if ((th = thread_rec (id, FALSE))) | |
448 | return th; | |
449 | ||
876d1cd7 | 450 | th = XCNEW (windows_thread_info); |
3cee93ac CF |
451 | th->id = id; |
452 | th->h = h; | |
711e434b | 453 | th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb; |
3cee93ac CF |
454 | th->next = thread_head.next; |
455 | thread_head.next = th; | |
c559d709 JB |
456 | |
457 | /* Add this new thread to the list of threads. | |
458 | ||
459 | To be consistent with what's done on other platforms, we add | |
460 | the main thread silently (in reality, this thread is really | |
461 | more of a process to the user than a thread). */ | |
462 | if (main_thread_p) | |
5b6d1e4f | 463 | add_thread_silent (&the_windows_nat_target, ptid); |
c559d709 | 464 | else |
5b6d1e4f | 465 | add_thread (&the_windows_nat_target, ptid); |
c559d709 | 466 | |
2dc38344 | 467 | /* Set the debug registers for the new thread if they are used. */ |
fa4ba8da PM |
468 | if (debug_registers_used) |
469 | { | |
470 | /* Only change the value of the debug registers. */ | |
471 | th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS; | |
472 | CHECK (GetThreadContext (th->h, &th->context)); | |
473 | th->context.Dr0 = dr[0]; | |
474 | th->context.Dr1 = dr[1]; | |
475 | th->context.Dr2 = dr[2]; | |
476 | th->context.Dr3 = dr[3]; | |
6537bb24 | 477 | th->context.Dr6 = DR6_CLEAR_VALUE; |
fa4ba8da PM |
478 | th->context.Dr7 = dr[7]; |
479 | CHECK (SetThreadContext (th->h, &th->context)); | |
480 | th->context.ContextFlags = 0; | |
481 | } | |
3cee93ac | 482 | return th; |
24e60978 SC |
483 | } |
484 | ||
26c4b26f | 485 | /* Clear out any old thread list and reinitialize it to a |
581e13c1 | 486 | pristine state. */ |
24e60978 | 487 | static void |
dc05df57 | 488 | windows_init_thread_list (void) |
24e60978 | 489 | { |
876d1cd7 | 490 | windows_thread_info *th = &thread_head; |
3cee93ac | 491 | |
dc05df57 | 492 | DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); |
3cee93ac CF |
493 | init_thread_list (); |
494 | while (th->next != NULL) | |
24e60978 | 495 | { |
876d1cd7 | 496 | windows_thread_info *here = th->next; |
3cee93ac | 497 | th->next = here->next; |
b8c9b27d | 498 | xfree (here); |
24e60978 | 499 | } |
059198c1 | 500 | thread_head.next = NULL; |
3cee93ac CF |
501 | } |
502 | ||
c559d709 JB |
503 | /* Delete a thread from the list of threads. |
504 | ||
505 | PTID is the ptid of the thread to be deleted. | |
506 | EXIT_CODE is the thread's exit code. | |
507 | MAIN_THREAD_P should be true if the thread to be deleted is | |
508 | the main thread, false otherwise. */ | |
509 | ||
3cee93ac | 510 | static void |
c559d709 | 511 | windows_delete_thread (ptid_t ptid, DWORD exit_code, bool main_thread_p) |
3cee93ac | 512 | { |
876d1cd7 | 513 | windows_thread_info *th; |
2dc38344 PA |
514 | DWORD id; |
515 | ||
cc6bcb54 | 516 | gdb_assert (ptid.tid () != 0); |
2dc38344 | 517 | |
cc6bcb54 | 518 | id = ptid.tid (); |
3cee93ac | 519 | |
c559d709 JB |
520 | /* Emit a notification about the thread being deleted. |
521 | ||
522 | Note that no notification was printed when the main thread | |
523 | was created, and thus, unless in verbose mode, we should be | |
85102364 | 524 | symmetrical, and avoid that notification for the main thread |
c559d709 JB |
525 | here as well. */ |
526 | ||
3cee93ac | 527 | if (info_verbose) |
a068643d | 528 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid).c_str ()); |
c559d709 | 529 | else if (print_thread_events && !main_thread_p) |
e0ea48a0 | 530 | printf_unfiltered (_("[%s exited with code %u]\n"), |
a068643d TT |
531 | target_pid_to_str (ptid).c_str (), |
532 | (unsigned) exit_code); | |
c559d709 | 533 | |
5b6d1e4f | 534 | delete_thread (find_thread_ptid (&the_windows_nat_target, ptid)); |
3cee93ac CF |
535 | |
536 | for (th = &thread_head; | |
537 | th->next != NULL && th->next->id != id; | |
538 | th = th->next) | |
539 | continue; | |
540 | ||
541 | if (th->next != NULL) | |
24e60978 | 542 | { |
876d1cd7 | 543 | windows_thread_info *here = th->next; |
3cee93ac | 544 | th->next = here->next; |
24cdb46e | 545 | xfree (here->name); |
b8c9b27d | 546 | xfree (here); |
24e60978 SC |
547 | } |
548 | } | |
549 | ||
9a325b7b JB |
550 | /* Fetches register number R from the given windows_thread_info, |
551 | and supplies its value to the given regcache. | |
552 | ||
553 | This function assumes that R is non-negative. A failed assertion | |
554 | is raised if that is not true. | |
555 | ||
556 | This function assumes that TH->RELOAD_CONTEXT is not set, meaning | |
557 | that the windows_thread_info has an up-to-date context. A failed | |
558 | assertion is raised if that assumption is violated. */ | |
559 | ||
3cee93ac | 560 | static void |
9a325b7b JB |
561 | windows_fetch_one_register (struct regcache *regcache, |
562 | windows_thread_info *th, int r) | |
24e60978 | 563 | { |
9a325b7b JB |
564 | gdb_assert (r >= 0); |
565 | gdb_assert (!th->reload_context); | |
566 | ||
3de88e9a | 567 | char *context_offset = ((char *) &th->context) + mappings[r]; |
ac7936df | 568 | struct gdbarch *gdbarch = regcache->arch (); |
20a6ec49 | 569 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
9a325b7b JB |
570 | |
571 | if (r == I387_FISEG_REGNUM (tdep)) | |
572 | { | |
573 | long l = *((long *) context_offset) & 0xffff; | |
574 | regcache->raw_supply (r, (char *) &l); | |
575 | } | |
576 | else if (r == I387_FOP_REGNUM (tdep)) | |
577 | { | |
578 | long l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1); | |
579 | regcache->raw_supply (r, (char *) &l); | |
580 | } | |
581 | else if (segment_register_p (r)) | |
582 | { | |
583 | /* GDB treats segment registers as 32bit registers, but they are | |
584 | in fact only 16 bits long. Make sure we do not read extra | |
585 | bits from our source buffer. */ | |
586 | long l = *((long *) context_offset) & 0xffff; | |
587 | regcache->raw_supply (r, (char *) &l); | |
588 | } | |
589 | else | |
590 | regcache->raw_supply (r, context_offset); | |
591 | } | |
592 | ||
593 | void | |
594 | windows_nat_target::fetch_registers (struct regcache *regcache, int r) | |
595 | { | |
96b49c5e TT |
596 | DWORD tid = regcache->ptid ().tid (); |
597 | windows_thread_info *th = thread_rec (tid, TRUE); | |
9a325b7b JB |
598 | |
599 | /* Check if TH exists. Windows sometimes uses a non-existent | |
600 | thread id in its events. */ | |
601 | if (th == NULL) | |
602 | return; | |
6c7de422 | 603 | |
3de88e9a | 604 | if (th->reload_context) |
3ade5333 | 605 | { |
f20c58f5 | 606 | #ifdef __CYGWIN__ |
a244bdca CF |
607 | if (have_saved_context) |
608 | { | |
581e13c1 MS |
609 | /* Lie about where the program actually is stopped since |
610 | cygwin has informed us that we should consider the signal | |
611 | to have occurred at another location which is stored in | |
612 | "saved_context. */ | |
3de88e9a | 613 | memcpy (&th->context, &saved_context, |
581e13c1 | 614 | __COPY_CONTEXT_SIZE); |
a244bdca CF |
615 | have_saved_context = 0; |
616 | } | |
617 | else | |
cb832706 | 618 | #endif |
a244bdca | 619 | { |
a244bdca | 620 | th->context.ContextFlags = CONTEXT_DEBUGGER_DR; |
17617f2d | 621 | CHECK (GetThreadContext (th->h, &th->context)); |
2b008701 | 622 | /* Copy dr values from that thread. |
581e13c1 MS |
623 | But only if there were not modified since last stop. |
624 | PR gdb/2388 */ | |
88616312 PM |
625 | if (!debug_registers_changed) |
626 | { | |
627 | dr[0] = th->context.Dr0; | |
628 | dr[1] = th->context.Dr1; | |
629 | dr[2] = th->context.Dr2; | |
630 | dr[3] = th->context.Dr3; | |
631 | dr[6] = th->context.Dr6; | |
632 | dr[7] = th->context.Dr7; | |
633 | } | |
a244bdca | 634 | } |
3de88e9a | 635 | th->reload_context = 0; |
3ade5333 CF |
636 | } |
637 | ||
9a325b7b JB |
638 | if (r < 0) |
639 | for (r = 0; r < gdbarch_num_regs (regcache->arch()); r++) | |
640 | windows_fetch_one_register (regcache, th, r); | |
3cee93ac | 641 | else |
9a325b7b | 642 | windows_fetch_one_register (regcache, th, r); |
3cee93ac CF |
643 | } |
644 | ||
9a325b7b JB |
645 | /* Collect the register number R from the given regcache, and store |
646 | its value into the corresponding area of the given thread's context. | |
3de88e9a | 647 | |
9a325b7b JB |
648 | This function assumes that R is non-negative. A failed assertion |
649 | assertion is raised if that is not true. */ | |
3cee93ac CF |
650 | |
651 | static void | |
9a325b7b JB |
652 | windows_store_one_register (const struct regcache *regcache, |
653 | windows_thread_info *th, int r) | |
3cee93ac | 654 | { |
9a325b7b JB |
655 | gdb_assert (r >= 0); |
656 | ||
657 | regcache->raw_collect (r, ((char *) &th->context) + mappings[r]); | |
24e60978 SC |
658 | } |
659 | ||
3de88e9a SM |
660 | /* Store a new register value into the context of the thread tied to |
661 | REGCACHE. */ | |
f6ac5f3d PA |
662 | |
663 | void | |
664 | windows_nat_target::store_registers (struct regcache *regcache, int r) | |
3cee93ac | 665 | { |
96b49c5e TT |
666 | DWORD tid = regcache->ptid ().tid (); |
667 | windows_thread_info *th = thread_rec (tid, TRUE); | |
3de88e9a SM |
668 | |
669 | /* Check if TH exists. Windows sometimes uses a non-existent | |
581e13c1 | 670 | thread id in its events. */ |
9a325b7b JB |
671 | if (th == NULL) |
672 | return; | |
673 | ||
674 | if (r < 0) | |
675 | for (r = 0; r < gdbarch_num_regs (regcache->arch ()); r++) | |
676 | windows_store_one_register (regcache, th, r); | |
677 | else | |
678 | windows_store_one_register (regcache, th, r); | |
3cee93ac | 679 | } |
24e60978 | 680 | |
581e13c1 | 681 | /* Maintain a linked list of "so" information. */ |
d0e449a1 | 682 | struct lm_info_windows : public lm_info_base |
02e423b9 | 683 | { |
f8fdb78e | 684 | LPVOID load_addr = 0; |
3ee6f623 CF |
685 | }; |
686 | ||
687 | static struct so_list solib_start, *solib_end; | |
02e423b9 | 688 | |
de1b3c3d | 689 | static struct so_list * |
dc05df57 | 690 | windows_make_so (const char *name, LPVOID load_addr) |
8e860359 | 691 | { |
3ee6f623 | 692 | struct so_list *so; |
d0d0ab16 CV |
693 | char *p; |
694 | #ifndef __CYGWIN__ | |
b3c613f2 CF |
695 | char buf[__PMAX]; |
696 | char cwd[__PMAX]; | |
3f8ad85b CF |
697 | WIN32_FIND_DATA w32_fd; |
698 | HANDLE h = FindFirstFile(name, &w32_fd); | |
3f8ad85b | 699 | |
6badb179 CF |
700 | if (h == INVALID_HANDLE_VALUE) |
701 | strcpy (buf, name); | |
702 | else | |
3f8ad85b | 703 | { |
c914e0cc CF |
704 | FindClose (h); |
705 | strcpy (buf, name); | |
706 | if (GetCurrentDirectory (MAX_PATH + 1, cwd)) | |
707 | { | |
708 | p = strrchr (buf, '\\'); | |
709 | if (p) | |
710 | p[1] = '\0'; | |
711 | SetCurrentDirectory (buf); | |
712 | GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p); | |
713 | SetCurrentDirectory (cwd); | |
714 | } | |
3f8ad85b | 715 | } |
3ee6f623 CF |
716 | if (strcasecmp (buf, "ntdll.dll") == 0) |
717 | { | |
718 | GetSystemDirectory (buf, sizeof (buf)); | |
719 | strcat (buf, "\\ntdll.dll"); | |
720 | } | |
d0d0ab16 | 721 | #else |
b3c613f2 | 722 | cygwin_buf_t buf[__PMAX]; |
d0d0ab16 | 723 | |
b3c613f2 | 724 | buf[0] = 0; |
d0d0ab16 CV |
725 | if (access (name, F_OK) != 0) |
726 | { | |
727 | if (strcasecmp (name, "ntdll.dll") == 0) | |
b3c613f2 | 728 | #ifdef __USEWIDE |
d0d0ab16 CV |
729 | { |
730 | GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t)); | |
731 | wcscat (buf, L"\\ntdll.dll"); | |
732 | } | |
b3c613f2 CF |
733 | #else |
734 | { | |
735 | GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t)); | |
736 | strcat (buf, "\\ntdll.dll"); | |
737 | } | |
738 | #endif | |
d0d0ab16 CV |
739 | } |
740 | #endif | |
41bf6aca | 741 | so = XCNEW (struct so_list); |
f8fdb78e | 742 | lm_info_windows *li = new lm_info_windows; |
d0e449a1 SM |
743 | so->lm_info = li; |
744 | li->load_addr = load_addr; | |
de1b3c3d | 745 | strcpy (so->so_original_name, name); |
10325bc5 PA |
746 | #ifndef __CYGWIN__ |
747 | strcpy (so->so_name, buf); | |
748 | #else | |
d0d0ab16 CV |
749 | if (buf[0]) |
750 | cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name, | |
751 | SO_NAME_MAX_PATH_SIZE); | |
752 | else | |
753 | { | |
60c5c021 | 754 | char *rname = realpath (name, NULL); |
d0d0ab16 CV |
755 | if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE) |
756 | { | |
757 | strcpy (so->so_name, rname); | |
758 | free (rname); | |
759 | } | |
760 | else | |
761 | error (_("dll path too long")); | |
762 | } | |
de1b3c3d PA |
763 | /* Record cygwin1.dll .text start/end. */ |
764 | p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1); | |
765 | if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0) | |
766 | { | |
de1b3c3d | 767 | asection *text = NULL; |
8e860359 | 768 | |
192b62ce | 769 | gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386", -1)); |
a244bdca | 770 | |
192b62ce | 771 | if (abfd == NULL) |
de1b3c3d PA |
772 | return so; |
773 | ||
192b62ce TT |
774 | if (bfd_check_format (abfd.get (), bfd_object)) |
775 | text = bfd_get_section_by_name (abfd.get (), ".text"); | |
de1b3c3d PA |
776 | |
777 | if (!text) | |
192b62ce | 778 | return so; |
de1b3c3d | 779 | |
7a9dd1b2 | 780 | /* The symbols in a dll are offset by 0x1000, which is the |
de1b3c3d | 781 | offset from 0 of the first byte in an image - because of the |
581e13c1 MS |
782 | file header and the section alignment. */ |
783 | cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *) | |
784 | load_addr + 0x1000); | |
fd361982 | 785 | cygwin_load_end = cygwin_load_start + bfd_section_size (text); |
de1b3c3d | 786 | } |
10325bc5 | 787 | #endif |
de1b3c3d PA |
788 | |
789 | return so; | |
8e860359 CF |
790 | } |
791 | ||
3ee6f623 | 792 | static char * |
dfe7f3ac CF |
793 | get_image_name (HANDLE h, void *address, int unicode) |
794 | { | |
d0d0ab16 | 795 | #ifdef __CYGWIN__ |
b3c613f2 | 796 | static char buf[__PMAX]; |
d0d0ab16 | 797 | #else |
b3c613f2 | 798 | static char buf[(2 * __PMAX) + 1]; |
d0d0ab16 | 799 | #endif |
dfe7f3ac CF |
800 | DWORD size = unicode ? sizeof (WCHAR) : sizeof (char); |
801 | char *address_ptr; | |
802 | int len = 0; | |
803 | char b[2]; | |
5732a500 | 804 | SIZE_T done; |
dfe7f3ac CF |
805 | |
806 | /* Attempt to read the name of the dll that was detected. | |
807 | This is documented to work only when actively debugging | |
581e13c1 | 808 | a program. It will not work for attached processes. */ |
dfe7f3ac CF |
809 | if (address == NULL) |
810 | return NULL; | |
811 | ||
dfe7f3ac | 812 | /* See if we could read the address of a string, and that the |
581e13c1 MS |
813 | address isn't null. */ |
814 | if (!ReadProcessMemory (h, address, &address_ptr, | |
815 | sizeof (address_ptr), &done) | |
6f17862b | 816 | || done != sizeof (address_ptr) || !address_ptr) |
dfe7f3ac CF |
817 | return NULL; |
818 | ||
581e13c1 | 819 | /* Find the length of the string. */ |
6f17862b CF |
820 | while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done) |
821 | && (b[0] != 0 || b[size - 1] != 0) && done == size) | |
822 | continue; | |
dfe7f3ac CF |
823 | |
824 | if (!unicode) | |
825 | ReadProcessMemory (h, address_ptr, buf, len, &done); | |
826 | else | |
827 | { | |
828 | WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR)); | |
829 | ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR), | |
830 | &done); | |
d0d0ab16 | 831 | #ifdef __CYGWIN__ |
b3c613f2 | 832 | wcstombs (buf, unicode_address, __PMAX); |
d0d0ab16 CV |
833 | #else |
834 | WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf, | |
835 | 0, 0); | |
836 | #endif | |
dfe7f3ac CF |
837 | } |
838 | ||
839 | return buf; | |
840 | } | |
841 | ||
1cd9feab JB |
842 | /* Handle a DLL load event, and return 1. |
843 | ||
844 | This function assumes that this event did not occur during inferior | |
845 | initialization, where their event info may be incomplete (see | |
846 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
847 | on how we handle DLL loading during that phase). */ | |
848 | ||
bf469271 PA |
849 | static void |
850 | handle_load_dll () | |
24e60978 | 851 | { |
3a4b77d8 | 852 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; |
1cd9feab | 853 | char *dll_name; |
24e60978 | 854 | |
94481b8c JB |
855 | /* Try getting the DLL name via the lpImageName field of the event. |
856 | Note that Microsoft documents this fields as strictly optional, | |
857 | in the sense that it might be NULL. And the first DLL event in | |
858 | particular is explicitly documented as "likely not pass[ed]" | |
859 | (source: MSDN LOAD_DLL_DEBUG_INFO structure). */ | |
1cd9feab JB |
860 | dll_name = get_image_name (current_process_handle, |
861 | event->lpImageName, event->fUnicode); | |
3cee93ac | 862 | if (!dll_name) |
bf469271 | 863 | return; |
3cee93ac | 864 | |
dc05df57 | 865 | solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll); |
de1b3c3d | 866 | solib_end = solib_end->next; |
450005e7 | 867 | |
d0e449a1 SM |
868 | lm_info_windows *li = (lm_info_windows *) solib_end->lm_info; |
869 | ||
a74ce742 | 870 | DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name, |
d0e449a1 | 871 | host_address_to_string (li->load_addr))); |
450005e7 CF |
872 | } |
873 | ||
3ee6f623 | 874 | static void |
dc05df57 | 875 | windows_free_so (struct so_list *so) |
3ee6f623 | 876 | { |
f8fdb78e SM |
877 | lm_info_windows *li = (lm_info_windows *) so->lm_info; |
878 | ||
879 | delete li; | |
de1b3c3d | 880 | xfree (so); |
3cb8e7f6 CF |
881 | } |
882 | ||
3be75f87 JB |
883 | /* Handle a DLL unload event. |
884 | Return 1 if successful, or zero otherwise. | |
885 | ||
886 | This function assumes that this event did not occur during inferior | |
887 | initialization, where their event info may be incomplete (see | |
888 | do_initial_windows_stuff and windows_add_all_dlls for more info | |
889 | on how we handle DLL loading during that phase). */ | |
890 | ||
bf469271 PA |
891 | static void |
892 | handle_unload_dll () | |
d3ff4a77 | 893 | { |
d3653bf6 | 894 | LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll; |
3ee6f623 | 895 | struct so_list *so; |
d3ff4a77 CF |
896 | |
897 | for (so = &solib_start; so->next != NULL; so = so->next) | |
d0e449a1 SM |
898 | { |
899 | lm_info_windows *li_next = (lm_info_windows *) so->next->lm_info; | |
a25cd31f | 900 | |
d0e449a1 SM |
901 | if (li_next->load_addr == lpBaseOfDll) |
902 | { | |
903 | struct so_list *sodel = so->next; | |
7488902c | 904 | |
d0e449a1 SM |
905 | so->next = sodel->next; |
906 | if (!so->next) | |
907 | solib_end = so; | |
908 | DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name)); | |
909 | ||
910 | windows_free_so (sodel); | |
bf469271 | 911 | return; |
d0e449a1 SM |
912 | } |
913 | } | |
3929abe9 | 914 | |
ecc13e53 JB |
915 | /* We did not find any DLL that was previously loaded at this address, |
916 | so register a complaint. We do not report an error, because we have | |
917 | observed that this may be happening under some circumstances. For | |
918 | instance, running 32bit applications on x64 Windows causes us to receive | |
919 | 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these | |
920 | events are apparently caused by the WOW layer, the interface between | |
921 | 32bit and 64bit worlds). */ | |
b98664d3 | 922 | complaint (_("dll starting at %s not found."), |
ecc13e53 | 923 | host_address_to_string (lpBaseOfDll)); |
bf469271 PA |
924 | } |
925 | ||
926 | /* Call FUNC wrapped in a TRY/CATCH that swallows all GDB | |
927 | exceptions. */ | |
d3ff4a77 | 928 | |
bf469271 PA |
929 | static void |
930 | catch_errors (void (*func) ()) | |
931 | { | |
a70b8144 | 932 | try |
bf469271 PA |
933 | { |
934 | func (); | |
935 | } | |
230d2906 | 936 | catch (const gdb_exception &ex) |
bf469271 PA |
937 | { |
938 | exception_print (gdb_stderr, ex); | |
939 | } | |
d3ff4a77 CF |
940 | } |
941 | ||
581e13c1 | 942 | /* Clear list of loaded DLLs. */ |
3ee6f623 | 943 | static void |
dc05df57 | 944 | windows_clear_solib (void) |
450005e7 | 945 | { |
25057eb0 HD |
946 | struct so_list *so; |
947 | ||
948 | for (so = solib_start.next; so; so = solib_start.next) | |
949 | { | |
950 | solib_start.next = so->next; | |
951 | windows_free_so (so); | |
952 | } | |
953 | ||
450005e7 | 954 | solib_end = &solib_start; |
450005e7 | 955 | } |
295732ea | 956 | |
463888ab | 957 | static void |
0b39b52e | 958 | signal_event_command (const char *args, int from_tty) |
463888ab РИ |
959 | { |
960 | uintptr_t event_id = 0; | |
961 | char *endargs = NULL; | |
962 | ||
963 | if (args == NULL) | |
964 | error (_("signal-event requires an argument (integer event id)")); | |
965 | ||
966 | event_id = strtoumax (args, &endargs, 10); | |
967 | ||
968 | if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || | |
969 | ((HANDLE) event_id == INVALID_HANDLE_VALUE)) | |
970 | error (_("Failed to convert `%s' to event id"), args); | |
971 | ||
972 | SetEvent ((HANDLE) event_id); | |
973 | CloseHandle ((HANDLE) event_id); | |
974 | } | |
975 | ||
3cee93ac CF |
976 | /* Handle DEBUG_STRING output from child process. |
977 | Cygwin prepends its messages with a "cygwin:". Interpret this as | |
581e13c1 | 978 | a Cygwin signal. Otherwise just print the string as a warning. */ |
3cee93ac CF |
979 | static int |
980 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
981 | { | |
e83e4e24 | 982 | gdb::unique_xmalloc_ptr<char> s; |
a244bdca | 983 | int retval = 0; |
3cee93ac CF |
984 | |
985 | if (!target_read_string | |
2c647436 | 986 | ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData, |
e83e4e24 TT |
987 | &s, 1024, 0) |
988 | || !s || !*(s.get ())) | |
a244bdca | 989 | /* nothing to do */; |
e83e4e24 | 990 | else if (!startswith (s.get (), _CYGWIN_SIGNAL_STRING)) |
3cee93ac | 991 | { |
10325bc5 | 992 | #ifdef __CYGWIN__ |
e83e4e24 | 993 | if (!startswith (s.get (), "cYg")) |
10325bc5 | 994 | #endif |
040ea00b | 995 | { |
e83e4e24 | 996 | char *p = strchr (s.get (), '\0'); |
040ea00b | 997 | |
e83e4e24 | 998 | if (p > s.get () && *--p == '\n') |
040ea00b | 999 | *p = '\0'; |
e83e4e24 | 1000 | warning (("%s"), s.get ()); |
040ea00b | 1001 | } |
3cee93ac | 1002 | } |
f20c58f5 | 1003 | #ifdef __CYGWIN__ |
d3a09475 | 1004 | else |
3cee93ac | 1005 | { |
581e13c1 MS |
1006 | /* Got a cygwin signal marker. A cygwin signal is followed by |
1007 | the signal number itself and then optionally followed by the | |
1008 | thread id and address to saved context within the DLL. If | |
1009 | these are supplied, then the given thread is assumed to have | |
1010 | issued the signal and the context from the thread is assumed | |
1011 | to be stored at the given address in the inferior. Tell gdb | |
1012 | to treat this like a real signal. */ | |
3cee93ac | 1013 | char *p; |
e83e4e24 | 1014 | int sig = strtol (s.get () + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0); |
0ae534d2 | 1015 | gdb_signal gotasig = gdb_signal_from_host (sig); |
c62fa0e2 | 1016 | |
0714f9bf SS |
1017 | ourstatus->value.sig = gotasig; |
1018 | if (gotasig) | |
a244bdca CF |
1019 | { |
1020 | LPCVOID x; | |
2c15ef43 | 1021 | SIZE_T n; |
c62fa0e2 | 1022 | |
a244bdca CF |
1023 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
1024 | retval = strtoul (p, &p, 0); | |
1025 | if (!retval) | |
ab4ee614 | 1026 | retval = current_event.dwThreadId; |
40653b35 | 1027 | else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0)) |
a244bdca | 1028 | && ReadProcessMemory (current_process_handle, x, |
581e13c1 MS |
1029 | &saved_context, |
1030 | __COPY_CONTEXT_SIZE, &n) | |
a244bdca CF |
1031 | && n == __COPY_CONTEXT_SIZE) |
1032 | have_saved_context = 1; | |
a244bdca | 1033 | } |
3cee93ac | 1034 | } |
cb832706 | 1035 | #endif |
3cee93ac | 1036 | |
a244bdca | 1037 | return retval; |
3cee93ac | 1038 | } |
24e60978 | 1039 | |
c1748f97 PM |
1040 | static int |
1041 | display_selector (HANDLE thread, DWORD sel) | |
1042 | { | |
1043 | LDT_ENTRY info; | |
1044 | if (GetThreadSelectorEntry (thread, sel, &info)) | |
1045 | { | |
1046 | int base, limit; | |
d50a0ce2 | 1047 | printf_filtered ("0x%03x: ", (unsigned) sel); |
c1748f97 | 1048 | if (!info.HighWord.Bits.Pres) |
baa93fa6 CF |
1049 | { |
1050 | puts_filtered ("Segment not present\n"); | |
1051 | return 0; | |
1052 | } | |
c1748f97 PM |
1053 | base = (info.HighWord.Bits.BaseHi << 24) + |
1054 | (info.HighWord.Bits.BaseMid << 16) | |
1055 | + info.BaseLow; | |
1056 | limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow; | |
1057 | if (info.HighWord.Bits.Granularity) | |
caad7706 | 1058 | limit = (limit << 12) | 0xfff; |
c1748f97 PM |
1059 | printf_filtered ("base=0x%08x limit=0x%08x", base, limit); |
1060 | if (info.HighWord.Bits.Default_Big) | |
baa93fa6 | 1061 | puts_filtered(" 32-bit "); |
c1748f97 | 1062 | else |
baa93fa6 | 1063 | puts_filtered(" 16-bit "); |
c1748f97 PM |
1064 | switch ((info.HighWord.Bits.Type & 0xf) >> 1) |
1065 | { | |
1066 | case 0: | |
baa93fa6 CF |
1067 | puts_filtered ("Data (Read-Only, Exp-up"); |
1068 | break; | |
c1748f97 | 1069 | case 1: |
baa93fa6 CF |
1070 | puts_filtered ("Data (Read/Write, Exp-up"); |
1071 | break; | |
c1748f97 | 1072 | case 2: |
baa93fa6 CF |
1073 | puts_filtered ("Unused segment ("); |
1074 | break; | |
c1748f97 | 1075 | case 3: |
baa93fa6 CF |
1076 | puts_filtered ("Data (Read/Write, Exp-down"); |
1077 | break; | |
c1748f97 | 1078 | case 4: |
baa93fa6 CF |
1079 | puts_filtered ("Code (Exec-Only, N.Conf"); |
1080 | break; | |
c1748f97 | 1081 | case 5: |
baa93fa6 | 1082 | puts_filtered ("Code (Exec/Read, N.Conf"); |
c1748f97 PM |
1083 | break; |
1084 | case 6: | |
baa93fa6 | 1085 | puts_filtered ("Code (Exec-Only, Conf"); |
c1748f97 PM |
1086 | break; |
1087 | case 7: | |
baa93fa6 | 1088 | puts_filtered ("Code (Exec/Read, Conf"); |
c1748f97 PM |
1089 | break; |
1090 | default: | |
e432ccf1 JT |
1091 | printf_filtered ("Unknown type 0x%lx", |
1092 | (unsigned long) info.HighWord.Bits.Type); | |
c1748f97 PM |
1093 | } |
1094 | if ((info.HighWord.Bits.Type & 0x1) == 0) | |
baa93fa6 | 1095 | puts_filtered(", N.Acc"); |
c1748f97 PM |
1096 | puts_filtered (")\n"); |
1097 | if ((info.HighWord.Bits.Type & 0x10) == 0) | |
1098 | puts_filtered("System selector "); | |
e432ccf1 JT |
1099 | printf_filtered ("Priviledge level = %ld. ", |
1100 | (unsigned long) info.HighWord.Bits.Dpl); | |
c1748f97 | 1101 | if (info.HighWord.Bits.Granularity) |
baa93fa6 | 1102 | puts_filtered ("Page granular.\n"); |
c1748f97 PM |
1103 | else |
1104 | puts_filtered ("Byte granular.\n"); | |
1105 | return 1; | |
1106 | } | |
1107 | else | |
1108 | { | |
5572ce1f PM |
1109 | DWORD err = GetLastError (); |
1110 | if (err == ERROR_NOT_SUPPORTED) | |
1111 | printf_filtered ("Function not supported\n"); | |
1112 | else | |
d50a0ce2 | 1113 | printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel); |
c1748f97 PM |
1114 | return 0; |
1115 | } | |
1116 | } | |
1117 | ||
1118 | static void | |
5fed81ff | 1119 | display_selectors (const char * args, int from_tty) |
c1748f97 PM |
1120 | { |
1121 | if (!current_thread) | |
1122 | { | |
1123 | puts_filtered ("Impossible to display selectors now.\n"); | |
1124 | return; | |
1125 | } | |
1126 | if (!args) | |
1127 | { | |
1128 | ||
1129 | puts_filtered ("Selector $cs\n"); | |
1130 | display_selector (current_thread->h, | |
baa93fa6 | 1131 | current_thread->context.SegCs); |
c1748f97 PM |
1132 | puts_filtered ("Selector $ds\n"); |
1133 | display_selector (current_thread->h, | |
baa93fa6 | 1134 | current_thread->context.SegDs); |
c1748f97 PM |
1135 | puts_filtered ("Selector $es\n"); |
1136 | display_selector (current_thread->h, | |
baa93fa6 | 1137 | current_thread->context.SegEs); |
c1748f97 PM |
1138 | puts_filtered ("Selector $ss\n"); |
1139 | display_selector (current_thread->h, | |
baa93fa6 | 1140 | current_thread->context.SegSs); |
c1748f97 PM |
1141 | puts_filtered ("Selector $fs\n"); |
1142 | display_selector (current_thread->h, | |
1143 | current_thread->context.SegFs); | |
1144 | puts_filtered ("Selector $gs\n"); | |
1145 | display_selector (current_thread->h, | |
baa93fa6 | 1146 | current_thread->context.SegGs); |
c1748f97 PM |
1147 | } |
1148 | else | |
1149 | { | |
1150 | int sel; | |
1151 | sel = parse_and_eval_long (args); | |
1152 | printf_filtered ("Selector \"%s\"\n",args); | |
1153 | display_selector (current_thread->h, sel); | |
1154 | } | |
1155 | } | |
1156 | ||
7393af7c | 1157 | #define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \ |
a74ce742 PM |
1158 | printf_unfiltered ("gdb: Target exception %s at %s\n", x, \ |
1159 | host_address_to_string (\ | |
1160 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)) | |
7393af7c | 1161 | |
24cdb46e | 1162 | static handle_exception_result |
450005e7 | 1163 | handle_exception (struct target_waitstatus *ourstatus) |
24e60978 | 1164 | { |
24cdb46e РИ |
1165 | EXCEPTION_RECORD *rec = ¤t_event.u.Exception.ExceptionRecord; |
1166 | DWORD code = rec->ExceptionCode; | |
1167 | handle_exception_result result = HANDLE_EXCEPTION_HANDLED; | |
3cee93ac | 1168 | |
29fe111d | 1169 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
8a892701 | 1170 | |
581e13c1 | 1171 | /* Record the context of the current thread. */ |
c25b7cce | 1172 | thread_rec (current_event.dwThreadId, -1); |
24e60978 | 1173 | |
29fe111d | 1174 | switch (code) |
24e60978 | 1175 | { |
1ef980b9 | 1176 | case EXCEPTION_ACCESS_VIOLATION: |
7393af7c | 1177 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION"); |
a493e3e2 | 1178 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
10325bc5 | 1179 | #ifdef __CYGWIN__ |
8da8e0b3 | 1180 | { |
581e13c1 MS |
1181 | /* See if the access violation happened within the cygwin DLL |
1182 | itself. Cygwin uses a kind of exception handling to deal | |
1183 | with passed-in invalid addresses. gdb should not treat | |
1184 | these as real SEGVs since they will be silently handled by | |
1185 | cygwin. A real SEGV will (theoretically) be caught by | |
1186 | cygwin later in the process and will be sent as a | |
1187 | cygwin-specific-signal. So, ignore SEGVs if they show up | |
1188 | within the text segment of the DLL itself. */ | |
2c02bd72 | 1189 | const char *fn; |
24cdb46e | 1190 | CORE_ADDR addr = (CORE_ADDR) (uintptr_t) rec->ExceptionAddress; |
581e13c1 MS |
1191 | |
1192 | if ((!cygwin_exceptions && (addr >= cygwin_load_start | |
1193 | && addr < cygwin_load_end)) | |
a244bdca | 1194 | || (find_pc_partial_function (addr, &fn, NULL, NULL) |
61012eef | 1195 | && startswith (fn, "KERNEL32!IsBad"))) |
24cdb46e | 1196 | return HANDLE_EXCEPTION_UNHANDLED; |
8da8e0b3 | 1197 | } |
10325bc5 | 1198 | #endif |
7393af7c PM |
1199 | break; |
1200 | case STATUS_STACK_OVERFLOW: | |
1201 | DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW"); | |
a493e3e2 | 1202 | ourstatus->value.sig = GDB_SIGNAL_SEGV; |
7393af7c PM |
1203 | break; |
1204 | case STATUS_FLOAT_DENORMAL_OPERAND: | |
1205 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND"); | |
a493e3e2 | 1206 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1207 | break; |
1208 | case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: | |
1209 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); | |
a493e3e2 | 1210 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1211 | break; |
1212 | case STATUS_FLOAT_INEXACT_RESULT: | |
1213 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT"); | |
a493e3e2 | 1214 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1215 | break; |
1216 | case STATUS_FLOAT_INVALID_OPERATION: | |
1217 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION"); | |
a493e3e2 | 1218 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1219 | break; |
1220 | case STATUS_FLOAT_OVERFLOW: | |
1221 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW"); | |
a493e3e2 | 1222 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c PM |
1223 | break; |
1224 | case STATUS_FLOAT_STACK_CHECK: | |
1225 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK"); | |
a493e3e2 | 1226 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 | 1227 | break; |
3b7c8b74 | 1228 | case STATUS_FLOAT_UNDERFLOW: |
7393af7c | 1229 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW"); |
a493e3e2 | 1230 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1231 | break; |
3b7c8b74 | 1232 | case STATUS_FLOAT_DIVIDE_BY_ZERO: |
7393af7c | 1233 | DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO"); |
a493e3e2 | 1234 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
7393af7c | 1235 | break; |
3b7c8b74 | 1236 | case STATUS_INTEGER_DIVIDE_BY_ZERO: |
7393af7c | 1237 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO"); |
a493e3e2 | 1238 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
3b7c8b74 | 1239 | break; |
7393af7c PM |
1240 | case STATUS_INTEGER_OVERFLOW: |
1241 | DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW"); | |
a493e3e2 | 1242 | ourstatus->value.sig = GDB_SIGNAL_FPE; |
1ef980b9 SC |
1243 | break; |
1244 | case EXCEPTION_BREAKPOINT: | |
7393af7c | 1245 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT"); |
a493e3e2 | 1246 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 SC |
1247 | break; |
1248 | case DBG_CONTROL_C: | |
7393af7c | 1249 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C"); |
a493e3e2 | 1250 | ourstatus->value.sig = GDB_SIGNAL_INT; |
5b421780 PM |
1251 | break; |
1252 | case DBG_CONTROL_BREAK: | |
7393af7c | 1253 | DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK"); |
a493e3e2 | 1254 | ourstatus->value.sig = GDB_SIGNAL_INT; |
1ef980b9 SC |
1255 | break; |
1256 | case EXCEPTION_SINGLE_STEP: | |
7393af7c | 1257 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP"); |
a493e3e2 | 1258 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
1ef980b9 | 1259 | break; |
8227c82d | 1260 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
7393af7c | 1261 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION"); |
a493e3e2 | 1262 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1263 | break; |
1264 | case EXCEPTION_PRIV_INSTRUCTION: | |
1265 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION"); | |
a493e3e2 | 1266 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
7393af7c PM |
1267 | break; |
1268 | case EXCEPTION_NONCONTINUABLE_EXCEPTION: | |
1269 | DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION"); | |
a493e3e2 | 1270 | ourstatus->value.sig = GDB_SIGNAL_ILL; |
8227c82d | 1271 | break; |
24cdb46e РИ |
1272 | case MS_VC_EXCEPTION: |
1273 | if (rec->NumberParameters >= 3 | |
1274 | && (rec->ExceptionInformation[0] & 0xffffffff) == 0x1000) | |
1275 | { | |
1276 | DWORD named_thread_id; | |
1277 | windows_thread_info *named_thread; | |
1278 | CORE_ADDR thread_name_target; | |
1279 | ||
1280 | DEBUG_EXCEPTION_SIMPLE ("MS_VC_EXCEPTION"); | |
1281 | ||
1282 | thread_name_target = rec->ExceptionInformation[1]; | |
1283 | named_thread_id = (DWORD) (0xffffffff & rec->ExceptionInformation[2]); | |
1284 | ||
1285 | if (named_thread_id == (DWORD) -1) | |
1286 | named_thread_id = current_event.dwThreadId; | |
1287 | ||
1288 | named_thread = thread_rec (named_thread_id, 0); | |
1289 | if (named_thread != NULL) | |
1290 | { | |
1291 | int thread_name_len; | |
e83e4e24 | 1292 | gdb::unique_xmalloc_ptr<char> thread_name; |
24cdb46e РИ |
1293 | |
1294 | thread_name_len = target_read_string (thread_name_target, | |
1295 | &thread_name, 1025, NULL); | |
1296 | if (thread_name_len > 0) | |
1297 | { | |
e83e4e24 | 1298 | thread_name.get ()[thread_name_len - 1] = '\0'; |
24cdb46e | 1299 | xfree (named_thread->name); |
e83e4e24 | 1300 | named_thread->name = thread_name.release (); |
24cdb46e | 1301 | } |
24cdb46e РИ |
1302 | } |
1303 | ourstatus->value.sig = GDB_SIGNAL_TRAP; | |
1304 | result = HANDLE_EXCEPTION_IGNORED; | |
1305 | break; | |
1306 | } | |
e7ec8713 TT |
1307 | /* treat improperly formed exception as unknown */ |
1308 | /* FALLTHROUGH */ | |
1ef980b9 | 1309 | default: |
581e13c1 | 1310 | /* Treat unhandled first chance exceptions specially. */ |
02e423b9 | 1311 | if (current_event.u.Exception.dwFirstChance) |
24cdb46e | 1312 | return HANDLE_EXCEPTION_UNHANDLED; |
d50a0ce2 CV |
1313 | printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n", |
1314 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
a74ce742 PM |
1315 | host_address_to_string ( |
1316 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
a493e3e2 | 1317 | ourstatus->value.sig = GDB_SIGNAL_UNKNOWN; |
1ef980b9 | 1318 | break; |
24e60978 | 1319 | } |
24e60978 | 1320 | exception_count++; |
7393af7c | 1321 | last_sig = ourstatus->value.sig; |
24cdb46e | 1322 | return result; |
24e60978 SC |
1323 | } |
1324 | ||
17617f2d EZ |
1325 | /* Resume thread specified by ID, or all artificially suspended |
1326 | threads, if we are continuing execution. KILLED non-zero means we | |
1327 | have killed the inferior, so we should ignore weird errors due to | |
1328 | threads shutting down. */ | |
3cee93ac | 1329 | static BOOL |
17617f2d | 1330 | windows_continue (DWORD continue_status, int id, int killed) |
3cee93ac | 1331 | { |
876d1cd7 | 1332 | windows_thread_info *th; |
3cee93ac CF |
1333 | BOOL res; |
1334 | ||
0c3d84be | 1335 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n", |
d50a0ce2 CV |
1336 | (unsigned) current_event.dwProcessId, |
1337 | (unsigned) current_event.dwThreadId, | |
dfe7f3ac | 1338 | continue_status == DBG_CONTINUE ? |
7393af7c | 1339 | "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED")); |
6537bb24 PA |
1340 | |
1341 | for (th = &thread_head; (th = th->next) != NULL;) | |
1342 | if ((id == -1 || id == (int) th->id) | |
1343 | && th->suspended) | |
1344 | { | |
1345 | if (debug_registers_changed) | |
1346 | { | |
1347 | th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS; | |
1348 | th->context.Dr0 = dr[0]; | |
1349 | th->context.Dr1 = dr[1]; | |
1350 | th->context.Dr2 = dr[2]; | |
1351 | th->context.Dr3 = dr[3]; | |
1352 | th->context.Dr6 = DR6_CLEAR_VALUE; | |
1353 | th->context.Dr7 = dr[7]; | |
1354 | } | |
1355 | if (th->context.ContextFlags) | |
1356 | { | |
17617f2d EZ |
1357 | DWORD ec = 0; |
1358 | ||
1359 | if (GetExitCodeThread (th->h, &ec) | |
1360 | && ec == STILL_ACTIVE) | |
1361 | { | |
1362 | BOOL status = SetThreadContext (th->h, &th->context); | |
1363 | ||
1364 | if (!killed) | |
1365 | CHECK (status); | |
1366 | } | |
6537bb24 PA |
1367 | th->context.ContextFlags = 0; |
1368 | } | |
1369 | if (th->suspended > 0) | |
1370 | (void) ResumeThread (th->h); | |
1371 | th->suspended = 0; | |
1372 | } | |
1373 | ||
0714f9bf SS |
1374 | res = ContinueDebugEvent (current_event.dwProcessId, |
1375 | current_event.dwThreadId, | |
1376 | continue_status); | |
3cee93ac | 1377 | |
68ffc902 JT |
1378 | if (!res) |
1379 | error (_("Failed to resume program execution" | |
1380 | " (ContinueDebugEvent failed, error %u)"), | |
1381 | (unsigned int) GetLastError ()); | |
1382 | ||
fa4ba8da | 1383 | debug_registers_changed = 0; |
3cee93ac CF |
1384 | return res; |
1385 | } | |
1386 | ||
d6dc8049 CF |
1387 | /* Called in pathological case where Windows fails to send a |
1388 | CREATE_PROCESS_DEBUG_EVENT after an attach. */ | |
3ee6f623 | 1389 | static DWORD |
5439edaa | 1390 | fake_create_process (void) |
3ade5333 CF |
1391 | { |
1392 | current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE, | |
1393 | current_event.dwProcessId); | |
bf25528d CF |
1394 | if (current_process_handle != NULL) |
1395 | open_process_used = 1; | |
1396 | else | |
1397 | { | |
d50a0ce2 CV |
1398 | error (_("OpenProcess call failed, GetLastError = %u"), |
1399 | (unsigned) GetLastError ()); | |
bf25528d CF |
1400 | /* We can not debug anything in that case. */ |
1401 | } | |
c559d709 JB |
1402 | current_thread |
1403 | = windows_add_thread (ptid_t (current_event.dwProcessId, 0, | |
1404 | current_event.dwThreadId), | |
1405 | current_event.u.CreateThread.hThread, | |
1406 | current_event.u.CreateThread.lpThreadLocalBase, | |
1407 | true /* main_thread_p */); | |
ab4ee614 | 1408 | return current_event.dwThreadId; |
3ade5333 CF |
1409 | } |
1410 | ||
f6ac5f3d PA |
1411 | void |
1412 | windows_nat_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
a244bdca | 1413 | { |
876d1cd7 | 1414 | windows_thread_info *th; |
a244bdca CF |
1415 | DWORD continue_status = DBG_CONTINUE; |
1416 | ||
2dc38344 | 1417 | /* A specific PTID means `step only this thread id'. */ |
d7e15655 | 1418 | int resume_all = ptid == minus_one_ptid; |
2dc38344 PA |
1419 | |
1420 | /* If we're continuing all threads, it's the current inferior that | |
1421 | should be handled specially. */ | |
1422 | if (resume_all) | |
1423 | ptid = inferior_ptid; | |
a244bdca | 1424 | |
a493e3e2 | 1425 | if (sig != GDB_SIGNAL_0) |
a244bdca CF |
1426 | { |
1427 | if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) | |
1428 | { | |
1429 | DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig)); | |
1430 | } | |
1431 | else if (sig == last_sig) | |
1432 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1433 | else | |
1434 | #if 0 | |
1435 | /* This code does not seem to work, because | |
1436 | the kernel does probably not consider changes in the ExceptionRecord | |
1437 | structure when passing the exception to the inferior. | |
1438 | Note that this seems possible in the exception handler itself. */ | |
1439 | { | |
73c13fe6 TT |
1440 | for (const xlate_exception &x : xlate) |
1441 | if (x.us == sig) | |
a244bdca | 1442 | { |
581e13c1 | 1443 | current_event.u.Exception.ExceptionRecord.ExceptionCode |
73c13fe6 | 1444 | = x.them; |
a244bdca CF |
1445 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1446 | break; | |
1447 | } | |
1448 | if (continue_status == DBG_CONTINUE) | |
1449 | { | |
1450 | DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig)); | |
1451 | } | |
1452 | } | |
1453 | #endif | |
23942819 | 1454 | DEBUG_EXCEPT(("Can only continue with received signal %d.\n", |
a244bdca CF |
1455 | last_sig)); |
1456 | } | |
1457 | ||
a493e3e2 | 1458 | last_sig = GDB_SIGNAL_0; |
a244bdca | 1459 | |
55dfc88f TT |
1460 | DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=0x%x, step=%d, sig=%d);\n", |
1461 | ptid.pid (), (unsigned) ptid.tid (), step, sig)); | |
a244bdca | 1462 | |
581e13c1 | 1463 | /* Get context for currently selected thread. */ |
cc6bcb54 | 1464 | th = thread_rec (inferior_ptid.tid (), FALSE); |
a244bdca CF |
1465 | if (th) |
1466 | { | |
1467 | if (step) | |
1468 | { | |
581e13c1 | 1469 | /* Single step by setting t bit. */ |
a97b0ac8 | 1470 | struct regcache *regcache = get_current_regcache (); |
ac7936df | 1471 | struct gdbarch *gdbarch = regcache->arch (); |
f6ac5f3d | 1472 | fetch_registers (regcache, gdbarch_ps_regnum (gdbarch)); |
a244bdca CF |
1473 | th->context.EFlags |= FLAG_TRACE_BIT; |
1474 | } | |
1475 | ||
1476 | if (th->context.ContextFlags) | |
1477 | { | |
1478 | if (debug_registers_changed) | |
1479 | { | |
1480 | th->context.Dr0 = dr[0]; | |
1481 | th->context.Dr1 = dr[1]; | |
1482 | th->context.Dr2 = dr[2]; | |
1483 | th->context.Dr3 = dr[3]; | |
6537bb24 | 1484 | th->context.Dr6 = DR6_CLEAR_VALUE; |
a244bdca CF |
1485 | th->context.Dr7 = dr[7]; |
1486 | } | |
1487 | CHECK (SetThreadContext (th->h, &th->context)); | |
1488 | th->context.ContextFlags = 0; | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | /* Allow continuing with the same signal that interrupted us. | |
581e13c1 | 1493 | Otherwise complain. */ |
a244bdca | 1494 | |
2dc38344 | 1495 | if (resume_all) |
17617f2d | 1496 | windows_continue (continue_status, -1, 0); |
2dc38344 | 1497 | else |
cc6bcb54 | 1498 | windows_continue (continue_status, ptid.tid (), 0); |
a244bdca CF |
1499 | } |
1500 | ||
695de547 CF |
1501 | /* Ctrl-C handler used when the inferior is not run in the same console. The |
1502 | handler is in charge of interrupting the inferior using DebugBreakProcess. | |
1503 | Note that this function is not available prior to Windows XP. In this case | |
1504 | we emit a warning. */ | |
d603d4b3 | 1505 | static BOOL WINAPI |
695de547 CF |
1506 | ctrl_c_handler (DWORD event_type) |
1507 | { | |
1508 | const int attach_flag = current_inferior ()->attach_flag; | |
1509 | ||
bb0613a5 PM |
1510 | /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */ |
1511 | if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT) | |
695de547 CF |
1512 | return FALSE; |
1513 | ||
1514 | /* If the inferior and the debugger share the same console, do nothing as | |
1515 | the inferior has also received the Ctrl-C event. */ | |
1516 | if (!new_console && !attach_flag) | |
1517 | return TRUE; | |
1518 | ||
1519 | if (!DebugBreakProcess (current_process_handle)) | |
581e13c1 MS |
1520 | warning (_("Could not interrupt program. " |
1521 | "Press Ctrl-c in the program console.")); | |
695de547 CF |
1522 | |
1523 | /* Return true to tell that Ctrl-C has been handled. */ | |
1524 | return TRUE; | |
1525 | } | |
1526 | ||
e6ad66bd JT |
1527 | /* Get the next event from the child. Returns a non-zero thread id if the event |
1528 | requires handling by WFI (or whatever). */ | |
5b6d1e4f PA |
1529 | |
1530 | int | |
1531 | windows_nat_target::get_windows_debug_event (int pid, | |
1532 | struct target_waitstatus *ourstatus) | |
1e37c281 JM |
1533 | { |
1534 | BOOL debug_event; | |
8a892701 | 1535 | DWORD continue_status, event_code; |
876d1cd7 YZ |
1536 | windows_thread_info *th; |
1537 | static windows_thread_info dummy_thread_info; | |
e6ad66bd | 1538 | DWORD thread_id = 0; |
1e37c281 | 1539 | |
a493e3e2 | 1540 | last_sig = GDB_SIGNAL_0; |
9d3789f7 | 1541 | |
8a892701 | 1542 | if (!(debug_event = WaitForDebugEvent (¤t_event, 1000))) |
29fe111d | 1543 | goto out; |
1e37c281 JM |
1544 | |
1545 | event_count++; | |
1546 | continue_status = DBG_CONTINUE; | |
1e37c281 | 1547 | |
8a892701 | 1548 | event_code = current_event.dwDebugEventCode; |
450005e7 | 1549 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; |
87a45c96 | 1550 | th = NULL; |
a244bdca | 1551 | have_saved_context = 0; |
8a892701 CF |
1552 | |
1553 | switch (event_code) | |
1e37c281 JM |
1554 | { |
1555 | case CREATE_THREAD_DEBUG_EVENT: | |
0c3d84be | 1556 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1557 | (unsigned) current_event.dwProcessId, |
1558 | (unsigned) current_event.dwThreadId, | |
1559 | "CREATE_THREAD_DEBUG_EVENT")); | |
dfe7f3ac | 1560 | if (saw_create != 1) |
3ade5333 | 1561 | { |
5b6d1e4f | 1562 | inferior *inf = find_inferior_pid (this, current_event.dwProcessId); |
181e7f93 | 1563 | if (!saw_create && inf->attach_flag) |
3ade5333 | 1564 | { |
d6dc8049 CF |
1565 | /* Kludge around a Windows bug where first event is a create |
1566 | thread event. Caused when attached process does not have | |
581e13c1 | 1567 | a main thread. */ |
e6ad66bd JT |
1568 | thread_id = fake_create_process (); |
1569 | if (thread_id) | |
181e7f93 | 1570 | saw_create++; |
3ade5333 CF |
1571 | } |
1572 | break; | |
1573 | } | |
581e13c1 | 1574 | /* Record the existence of this thread. */ |
e6ad66bd | 1575 | thread_id = current_event.dwThreadId; |
c559d709 JB |
1576 | th = windows_add_thread |
1577 | (ptid_t (current_event.dwProcessId, 0, current_event.dwThreadId), | |
1578 | current_event.u.CreateThread.hThread, | |
1579 | current_event.u.CreateThread.lpThreadLocalBase, | |
1580 | false /* main_thread_p */); | |
711e434b | 1581 | |
1e37c281 JM |
1582 | break; |
1583 | ||
1584 | case EXIT_THREAD_DEBUG_EVENT: | |
0c3d84be | 1585 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1586 | (unsigned) current_event.dwProcessId, |
1587 | (unsigned) current_event.dwThreadId, | |
1588 | "EXIT_THREAD_DEBUG_EVENT")); | |
2eab46b1 JB |
1589 | windows_delete_thread (ptid_t (current_event.dwProcessId, 0, |
1590 | current_event.dwThreadId), | |
c559d709 JB |
1591 | current_event.u.ExitThread.dwExitCode, |
1592 | false /* main_thread_p */); | |
2eab46b1 | 1593 | th = &dummy_thread_info; |
1e37c281 JM |
1594 | break; |
1595 | ||
1596 | case CREATE_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1597 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1598 | (unsigned) current_event.dwProcessId, |
1599 | (unsigned) current_event.dwThreadId, | |
1600 | "CREATE_PROCESS_DEBUG_EVENT")); | |
700b351b | 1601 | CloseHandle (current_event.u.CreateProcessInfo.hFile); |
dfe7f3ac | 1602 | if (++saw_create != 1) |
bf25528d | 1603 | break; |
1e37c281 | 1604 | |
dfe7f3ac | 1605 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; |
581e13c1 | 1606 | /* Add the main thread. */ |
c559d709 JB |
1607 | th = windows_add_thread |
1608 | (ptid_t (current_event.dwProcessId, 0, | |
1609 | current_event.dwThreadId), | |
1610 | current_event.u.CreateProcessInfo.hThread, | |
1611 | current_event.u.CreateProcessInfo.lpThreadLocalBase, | |
1612 | true /* main_thread_p */); | |
e6ad66bd | 1613 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1614 | break; |
1615 | ||
1616 | case EXIT_PROCESS_DEBUG_EVENT: | |
0c3d84be | 1617 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1618 | (unsigned) current_event.dwProcessId, |
1619 | (unsigned) current_event.dwThreadId, | |
1620 | "EXIT_PROCESS_DEBUG_EVENT")); | |
16d905e2 CF |
1621 | if (!windows_initialization_done) |
1622 | { | |
223ffa71 | 1623 | target_terminal::ours (); |
bc1e6c81 | 1624 | target_mourn_inferior (inferior_ptid); |
16d905e2 CF |
1625 | error (_("During startup program exited with code 0x%x."), |
1626 | (unsigned int) current_event.u.ExitProcess.dwExitCode); | |
1627 | } | |
1628 | else if (saw_create == 1) | |
1629 | { | |
2eab46b1 | 1630 | windows_delete_thread (ptid_t (current_event.dwProcessId, 0, |
8ed5b76e | 1631 | current_event.dwThreadId), |
c559d709 | 1632 | 0, true /* main_thread_p */); |
559e7e50 EZ |
1633 | DWORD exit_status = current_event.u.ExitProcess.dwExitCode; |
1634 | /* If the exit status looks like a fatal exception, but we | |
1635 | don't recognize the exception's code, make the original | |
1636 | exit status value available, to avoid losing | |
1637 | information. */ | |
1638 | int exit_signal | |
1639 | = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1; | |
1640 | if (exit_signal == -1) | |
1641 | { | |
1642 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1643 | ourstatus->value.integer = exit_status; | |
1644 | } | |
1645 | else | |
1646 | { | |
1647 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1648 | ourstatus->value.sig = gdb_signal_from_host (exit_signal); | |
1649 | } | |
8ed5b76e | 1650 | thread_id = current_event.dwThreadId; |
16d905e2 | 1651 | } |
8a892701 | 1652 | break; |
1e37c281 JM |
1653 | |
1654 | case LOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1655 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1656 | (unsigned) current_event.dwProcessId, |
1657 | (unsigned) current_event.dwThreadId, | |
1658 | "LOAD_DLL_DEBUG_EVENT")); | |
700b351b | 1659 | CloseHandle (current_event.u.LoadDll.hFile); |
ea39ad35 | 1660 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1661 | break; |
bf469271 | 1662 | catch_errors (handle_load_dll); |
450005e7 CF |
1663 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1664 | ourstatus->value.integer = 0; | |
ab4ee614 | 1665 | thread_id = current_event.dwThreadId; |
1e37c281 JM |
1666 | break; |
1667 | ||
1668 | case UNLOAD_DLL_DEBUG_EVENT: | |
0c3d84be | 1669 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1670 | (unsigned) current_event.dwProcessId, |
1671 | (unsigned) current_event.dwThreadId, | |
1672 | "UNLOAD_DLL_DEBUG_EVENT")); | |
ea39ad35 | 1673 | if (saw_create != 1 || ! windows_initialization_done) |
dfe7f3ac | 1674 | break; |
bf469271 | 1675 | catch_errors (handle_unload_dll); |
de1b3c3d PA |
1676 | ourstatus->kind = TARGET_WAITKIND_LOADED; |
1677 | ourstatus->value.integer = 0; | |
ab4ee614 | 1678 | thread_id = current_event.dwThreadId; |
d3ff4a77 | 1679 | break; |
1e37c281 JM |
1680 | |
1681 | case EXCEPTION_DEBUG_EVENT: | |
0c3d84be | 1682 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1683 | (unsigned) current_event.dwProcessId, |
1684 | (unsigned) current_event.dwThreadId, | |
1685 | "EXCEPTION_DEBUG_EVENT")); | |
dfe7f3ac CF |
1686 | if (saw_create != 1) |
1687 | break; | |
24cdb46e РИ |
1688 | switch (handle_exception (ourstatus)) |
1689 | { | |
1690 | case HANDLE_EXCEPTION_UNHANDLED: | |
1691 | default: | |
1692 | continue_status = DBG_EXCEPTION_NOT_HANDLED; | |
1693 | break; | |
1694 | case HANDLE_EXCEPTION_HANDLED: | |
1695 | thread_id = current_event.dwThreadId; | |
1696 | break; | |
1697 | case HANDLE_EXCEPTION_IGNORED: | |
1698 | continue_status = DBG_CONTINUE; | |
1699 | break; | |
1700 | } | |
1e37c281 JM |
1701 | break; |
1702 | ||
581e13c1 | 1703 | case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */ |
0c3d84be | 1704 | DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n", |
8a892701 CF |
1705 | (unsigned) current_event.dwProcessId, |
1706 | (unsigned) current_event.dwThreadId, | |
1707 | "OUTPUT_DEBUG_STRING_EVENT")); | |
dfe7f3ac CF |
1708 | if (saw_create != 1) |
1709 | break; | |
e6ad66bd | 1710 | thread_id = handle_output_debug_string (ourstatus); |
1e37c281 | 1711 | break; |
9d3789f7 | 1712 | |
1e37c281 | 1713 | default: |
dfe7f3ac CF |
1714 | if (saw_create != 1) |
1715 | break; | |
0c3d84be | 1716 | printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n", |
d50a0ce2 CV |
1717 | (unsigned) current_event.dwProcessId, |
1718 | (unsigned) current_event.dwThreadId); | |
1719 | printf_unfiltered (" unknown event code %u\n", | |
1720 | (unsigned) current_event.dwDebugEventCode); | |
1e37c281 JM |
1721 | break; |
1722 | } | |
1723 | ||
e6ad66bd | 1724 | if (!thread_id || saw_create != 1) |
a244bdca | 1725 | { |
95824559 | 1726 | CHECK (windows_continue (continue_status, -1, 0)); |
a244bdca | 1727 | } |
450005e7 | 1728 | else |
9d3789f7 | 1729 | { |
fd79271b | 1730 | inferior_ptid = ptid_t (current_event.dwProcessId, 0, thread_id); |
776704b9 JT |
1731 | current_thread = th; |
1732 | if (!current_thread) | |
f16eab5f | 1733 | current_thread = thread_rec (thread_id, TRUE); |
9d3789f7 | 1734 | } |
1e37c281 JM |
1735 | |
1736 | out: | |
e6ad66bd | 1737 | return thread_id; |
1e37c281 JM |
1738 | } |
1739 | ||
2dc38344 | 1740 | /* Wait for interesting events to occur in the target process. */ |
f6ac5f3d PA |
1741 | ptid_t |
1742 | windows_nat_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus, | |
1743 | int options) | |
24e60978 | 1744 | { |
2dc38344 | 1745 | int pid = -1; |
39f77062 | 1746 | |
24e60978 SC |
1747 | /* We loop when we get a non-standard exception rather than return |
1748 | with a SPURIOUS because resume can try and step or modify things, | |
3cee93ac | 1749 | which needs a current_thread->h. But some of these exceptions mark |
24e60978 | 1750 | the birth or death of threads, which mean that the current thread |
581e13c1 | 1751 | isn't necessarily what you think it is. */ |
24e60978 SC |
1752 | |
1753 | while (1) | |
450005e7 | 1754 | { |
c57918b2 | 1755 | int retval; |
2b008701 | 1756 | |
695de547 CF |
1757 | /* If the user presses Ctrl-c while the debugger is waiting |
1758 | for an event, he expects the debugger to interrupt his program | |
1759 | and to get the prompt back. There are two possible situations: | |
1760 | ||
1761 | - The debugger and the program do not share the console, in | |
1762 | which case the Ctrl-c event only reached the debugger. | |
1763 | In that case, the ctrl_c handler will take care of interrupting | |
581e13c1 MS |
1764 | the inferior. Note that this case is working starting with |
1765 | Windows XP. For Windows 2000, Ctrl-C should be pressed in the | |
695de547 CF |
1766 | inferior console. |
1767 | ||
1768 | - The debugger and the program share the same console, in which | |
1769 | case both debugger and inferior will receive the Ctrl-c event. | |
1770 | In that case the ctrl_c handler will ignore the event, as the | |
1771 | Ctrl-c event generated inside the inferior will trigger the | |
1772 | expected debug event. | |
1773 | ||
1774 | FIXME: brobecker/2008-05-20: If the inferior receives the | |
1775 | signal first and the delay until GDB receives that signal | |
1776 | is sufficiently long, GDB can sometimes receive the SIGINT | |
1777 | after we have unblocked the CTRL+C handler. This would | |
1778 | lead to the debugger stopping prematurely while handling | |
1779 | the new-thread event that comes with the handling of the SIGINT | |
1780 | inside the inferior, and then stop again immediately when | |
1781 | the user tries to resume the execution in the inferior. | |
1782 | This is a classic race that we should try to fix one day. */ | |
1783 | SetConsoleCtrlHandler (&ctrl_c_handler, TRUE); | |
5b6d1e4f | 1784 | retval = get_windows_debug_event (pid, ourstatus); |
695de547 | 1785 | SetConsoleCtrlHandler (&ctrl_c_handler, FALSE); |
c57918b2 | 1786 | |
450005e7 | 1787 | if (retval) |
fd79271b | 1788 | return ptid_t (current_event.dwProcessId, 0, retval); |
450005e7 CF |
1789 | else |
1790 | { | |
1791 | int detach = 0; | |
3cee93ac | 1792 | |
98bbd631 AC |
1793 | if (deprecated_ui_loop_hook != NULL) |
1794 | detach = deprecated_ui_loop_hook (0); | |
0714f9bf | 1795 | |
450005e7 | 1796 | if (detach) |
f6ac5f3d | 1797 | kill (); |
450005e7 CF |
1798 | } |
1799 | } | |
24e60978 SC |
1800 | } |
1801 | ||
ea39ad35 JB |
1802 | /* Iterate over all DLLs currently mapped by our inferior, and |
1803 | add them to our list of solibs. */ | |
94481b8c JB |
1804 | |
1805 | static void | |
ea39ad35 | 1806 | windows_add_all_dlls (void) |
94481b8c | 1807 | { |
94481b8c JB |
1808 | HMODULE dummy_hmodule; |
1809 | DWORD cb_needed; | |
1810 | HMODULE *hmodules; | |
1811 | int i; | |
1812 | ||
94481b8c JB |
1813 | if (EnumProcessModules (current_process_handle, &dummy_hmodule, |
1814 | sizeof (HMODULE), &cb_needed) == 0) | |
1815 | return; | |
1816 | ||
1817 | if (cb_needed < 1) | |
1818 | return; | |
1819 | ||
1820 | hmodules = (HMODULE *) alloca (cb_needed); | |
1821 | if (EnumProcessModules (current_process_handle, hmodules, | |
1822 | cb_needed, &cb_needed) == 0) | |
1823 | return; | |
1824 | ||
ea39ad35 | 1825 | for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++) |
94481b8c JB |
1826 | { |
1827 | MODULEINFO mi; | |
774f74c2 PM |
1828 | #ifdef __USEWIDE |
1829 | wchar_t dll_name[__PMAX]; | |
1830 | char name[__PMAX]; | |
1831 | #else | |
94481b8c | 1832 | char dll_name[__PMAX]; |
774f74c2 PM |
1833 | char *name; |
1834 | #endif | |
94481b8c JB |
1835 | if (GetModuleInformation (current_process_handle, hmodules[i], |
1836 | &mi, sizeof (mi)) == 0) | |
1837 | continue; | |
1838 | if (GetModuleFileNameEx (current_process_handle, hmodules[i], | |
1839 | dll_name, sizeof (dll_name)) == 0) | |
1840 | continue; | |
774f74c2 PM |
1841 | #ifdef __USEWIDE |
1842 | wcstombs (name, dll_name, __PMAX); | |
1843 | #else | |
1844 | name = dll_name; | |
1845 | #endif | |
ea39ad35 JB |
1846 | |
1847 | solib_end->next = windows_make_so (name, mi.lpBaseOfDll); | |
1848 | solib_end = solib_end->next; | |
94481b8c JB |
1849 | } |
1850 | } | |
1851 | ||
9d3789f7 | 1852 | static void |
dc05df57 | 1853 | do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching) |
9d3789f7 | 1854 | { |
fa4ba8da | 1855 | int i; |
d6b48e9c | 1856 | struct inferior *inf; |
9d3789f7 | 1857 | |
a493e3e2 | 1858 | last_sig = GDB_SIGNAL_0; |
9d3789f7 CF |
1859 | event_count = 0; |
1860 | exception_count = 0; | |
bf25528d | 1861 | open_process_used = 0; |
fa4ba8da | 1862 | debug_registers_changed = 0; |
dfe7f3ac | 1863 | debug_registers_used = 0; |
fa4ba8da PM |
1864 | for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++) |
1865 | dr[i] = 0; | |
10325bc5 | 1866 | #ifdef __CYGWIN__ |
de1b3c3d | 1867 | cygwin_load_start = cygwin_load_end = 0; |
10325bc5 | 1868 | #endif |
9d3789f7 CF |
1869 | current_event.dwProcessId = pid; |
1870 | memset (¤t_event, 0, sizeof (current_event)); | |
6a3cb8e8 PA |
1871 | if (!target_is_pushed (ops)) |
1872 | push_target (ops); | |
cb851954 | 1873 | disable_breakpoints_in_shlibs (); |
dc05df57 | 1874 | windows_clear_solib (); |
88056fbb | 1875 | clear_proceed_status (0); |
9d3789f7 CF |
1876 | init_wait_for_inferior (); |
1877 | ||
6c95b8df PA |
1878 | inf = current_inferior (); |
1879 | inferior_appeared (inf, pid); | |
181e7f93 | 1880 | inf->attach_flag = attaching; |
7f9f62ba | 1881 | |
9f9d052e PM |
1882 | /* Make the new process the current inferior, so terminal handling |
1883 | can rely on it. When attaching, we don't know about any thread | |
1884 | id here, but that's OK --- nothing should be referencing the | |
dc05df57 | 1885 | current thread until we report an event out of windows_wait. */ |
f2907e49 | 1886 | inferior_ptid = ptid_t (pid); |
9f9d052e | 1887 | |
223ffa71 TT |
1888 | target_terminal::init (); |
1889 | target_terminal::inferior (); | |
9d3789f7 | 1890 | |
16d905e2 | 1891 | windows_initialization_done = 0; |
c72f45d1 | 1892 | |
9d3789f7 CF |
1893 | while (1) |
1894 | { | |
c72f45d1 PA |
1895 | struct target_waitstatus status; |
1896 | ||
f6ac5f3d | 1897 | ops->wait (minus_one_ptid, &status, 0); |
c72f45d1 PA |
1898 | |
1899 | /* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread | |
1900 | events. */ | |
1901 | if (status.kind != TARGET_WAITKIND_LOADED | |
1902 | && status.kind != TARGET_WAITKIND_SPURIOUS) | |
9d3789f7 | 1903 | break; |
c72f45d1 | 1904 | |
f6ac5f3d | 1905 | ops->resume (minus_one_ptid, 0, GDB_SIGNAL_0); |
9d3789f7 | 1906 | } |
eff8332b | 1907 | |
ea39ad35 | 1908 | /* Now that the inferior has been started and all DLLs have been mapped, |
3be75f87 JB |
1909 | we can iterate over all DLLs and load them in. |
1910 | ||
1911 | We avoid doing it any earlier because, on certain versions of Windows, | |
1912 | LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular, | |
1913 | we have seen on Windows 8.1 that the ntdll.dll load event does not | |
1914 | include the DLL name, preventing us from creating an associated SO. | |
1915 | A possible explanation is that ntdll.dll might be mapped before | |
1916 | the SO info gets created by the Windows system -- ntdll.dll is | |
1917 | the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs | |
1918 | do not seem to suffer from that problem. | |
1919 | ||
1920 | Rather than try to work around this sort of issue, it is much | |
1921 | simpler to just ignore DLL load/unload events during the startup | |
1922 | phase, and then process them all in one batch now. */ | |
ea39ad35 | 1923 | windows_add_all_dlls (); |
94481b8c | 1924 | |
16d905e2 | 1925 | windows_initialization_done = 1; |
9d3789f7 CF |
1926 | return; |
1927 | } | |
1928 | ||
616a9dc4 CV |
1929 | /* Try to set or remove a user privilege to the current process. Return -1 |
1930 | if that fails, the previous setting of that privilege otherwise. | |
1931 | ||
1932 | This code is copied from the Cygwin source code and rearranged to allow | |
1933 | dynamically loading of the needed symbols from advapi32 which is only | |
581e13c1 | 1934 | available on NT/2K/XP. */ |
616a9dc4 CV |
1935 | static int |
1936 | set_process_privilege (const char *privilege, BOOL enable) | |
1937 | { | |
616a9dc4 CV |
1938 | HANDLE token_hdl = NULL; |
1939 | LUID restore_priv; | |
1940 | TOKEN_PRIVILEGES new_priv, orig_priv; | |
1941 | int ret = -1; | |
1942 | DWORD size; | |
1943 | ||
616a9dc4 CV |
1944 | if (!OpenProcessToken (GetCurrentProcess (), |
1945 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
1946 | &token_hdl)) | |
1947 | goto out; | |
1948 | ||
418c6cb3 | 1949 | if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv)) |
616a9dc4 CV |
1950 | goto out; |
1951 | ||
1952 | new_priv.PrivilegeCount = 1; | |
1953 | new_priv.Privileges[0].Luid = restore_priv; | |
1954 | new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; | |
1955 | ||
1956 | if (!AdjustTokenPrivileges (token_hdl, FALSE, &new_priv, | |
295732ea | 1957 | sizeof orig_priv, &orig_priv, &size)) |
616a9dc4 CV |
1958 | goto out; |
1959 | #if 0 | |
1960 | /* Disabled, otherwise every `attach' in an unprivileged user session | |
1961 | would raise the "Failed to get SE_DEBUG_NAME privilege" warning in | |
581e13c1 | 1962 | windows_attach(). */ |
616a9dc4 | 1963 | /* AdjustTokenPrivileges returns TRUE even if the privilege could not |
581e13c1 | 1964 | be enabled. GetLastError () returns an correct error code, though. */ |
616a9dc4 CV |
1965 | if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) |
1966 | goto out; | |
1967 | #endif | |
1968 | ||
1969 | ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; | |
1970 | ||
1971 | out: | |
1972 | if (token_hdl) | |
1973 | CloseHandle (token_hdl); | |
1974 | ||
1975 | return ret; | |
1976 | } | |
1977 | ||
02cc9f49 | 1978 | /* Attach to process PID, then initialize for debugging it. */ |
f6ac5f3d PA |
1979 | |
1980 | void | |
1981 | windows_nat_target::attach (const char *args, int from_tty) | |
24e60978 SC |
1982 | { |
1983 | BOOL ok; | |
559e75c0 | 1984 | DWORD pid; |
24e60978 | 1985 | |
74164c56 | 1986 | pid = parse_pid_to_attach (args); |
24e60978 | 1987 | |
616a9dc4 CV |
1988 | if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0) |
1989 | { | |
1990 | printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n"); | |
581e13c1 MS |
1991 | printf_unfiltered ("This can cause attach to " |
1992 | "fail on Windows NT/2K/XP\n"); | |
616a9dc4 CV |
1993 | } |
1994 | ||
dc05df57 | 1995 | windows_init_thread_list (); |
9d3789f7 | 1996 | ok = DebugActiveProcess (pid); |
91a175b3 | 1997 | saw_create = 0; |
24e60978 | 1998 | |
10325bc5 | 1999 | #ifdef __CYGWIN__ |
24e60978 | 2000 | if (!ok) |
baa93fa6 | 2001 | { |
581e13c1 | 2002 | /* Try fall back to Cygwin pid. */ |
baa93fa6 CF |
2003 | pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid); |
2004 | ||
2005 | if (pid > 0) | |
2006 | ok = DebugActiveProcess (pid); | |
10325bc5 PA |
2007 | } |
2008 | #endif | |
baa93fa6 | 2009 | |
10325bc5 | 2010 | if (!ok) |
c9739b6a TT |
2011 | error (_("Can't attach to process %u (error %u)"), |
2012 | (unsigned) pid, (unsigned) GetLastError ()); | |
24e60978 | 2013 | |
2b008701 | 2014 | DebugSetProcessKillOnExit (FALSE); |
3ade5333 | 2015 | |
24e60978 SC |
2016 | if (from_tty) |
2017 | { | |
d9fa87f4 | 2018 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2019 | |
2020 | if (exec_file) | |
2021 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
a068643d | 2022 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2023 | else |
2024 | printf_unfiltered ("Attaching to %s\n", | |
a068643d | 2025 | target_pid_to_str (ptid_t (pid)).c_str ()); |
24e60978 SC |
2026 | } |
2027 | ||
f6ac5f3d | 2028 | do_initial_windows_stuff (this, pid, 1); |
223ffa71 | 2029 | target_terminal::ours (); |
24e60978 SC |
2030 | } |
2031 | ||
f6ac5f3d PA |
2032 | void |
2033 | windows_nat_target::detach (inferior *inf, int from_tty) | |
24e60978 | 2034 | { |
02cc9f49 CV |
2035 | int detached = 1; |
2036 | ||
8473b447 | 2037 | ptid_t ptid = minus_one_ptid; |
f6ac5f3d | 2038 | resume (ptid, 0, GDB_SIGNAL_0); |
96998ce7 | 2039 | |
2b008701 CF |
2040 | if (!DebugActiveProcessStop (current_event.dwProcessId)) |
2041 | { | |
d50a0ce2 CV |
2042 | error (_("Can't detach process %u (error %u)"), |
2043 | (unsigned) current_event.dwProcessId, (unsigned) GetLastError ()); | |
2b008701 | 2044 | detached = 0; |
02cc9f49 | 2045 | } |
2b008701 CF |
2046 | DebugSetProcessKillOnExit (FALSE); |
2047 | ||
02cc9f49 | 2048 | if (detached && from_tty) |
24e60978 | 2049 | { |
a121b7c1 | 2050 | const char *exec_file = get_exec_file (0); |
24e60978 SC |
2051 | if (exec_file == 0) |
2052 | exec_file = ""; | |
d50a0ce2 CV |
2053 | printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file, |
2054 | (unsigned) current_event.dwProcessId); | |
24e60978 | 2055 | } |
7f9f62ba | 2056 | |
df7e5265 | 2057 | x86_cleanup_dregs (); |
39f77062 | 2058 | inferior_ptid = null_ptid; |
b7a08269 | 2059 | detach_inferior (inf); |
7f9f62ba | 2060 | |
f6ac5f3d | 2061 | maybe_unpush_target (); |
24e60978 SC |
2062 | } |
2063 | ||
47f7ffdb JB |
2064 | /* Try to determine the executable filename. |
2065 | ||
2066 | EXE_NAME_RET is a pointer to a buffer whose size is EXE_NAME_MAX_LEN. | |
2067 | ||
2068 | Upon success, the filename is stored inside EXE_NAME_RET, and | |
2069 | this function returns nonzero. | |
2070 | ||
2071 | Otherwise, this function returns zero and the contents of | |
2072 | EXE_NAME_RET is undefined. */ | |
2073 | ||
2074 | static int | |
2075 | windows_get_exec_module_filename (char *exe_name_ret, size_t exe_name_max_len) | |
2076 | { | |
2077 | DWORD len; | |
2078 | HMODULE dh_buf; | |
2079 | DWORD cbNeeded; | |
2080 | ||
2081 | cbNeeded = 0; | |
2082 | if (!EnumProcessModules (current_process_handle, &dh_buf, | |
2083 | sizeof (HMODULE), &cbNeeded) || !cbNeeded) | |
2084 | return 0; | |
2085 | ||
2086 | /* We know the executable is always first in the list of modules, | |
2087 | which we just fetched. So no need to fetch more. */ | |
2088 | ||
2089 | #ifdef __CYGWIN__ | |
2090 | { | |
2091 | /* Cygwin prefers that the path be in /x/y/z format, so extract | |
2092 | the filename into a temporary buffer first, and then convert it | |
2093 | to POSIX format into the destination buffer. */ | |
0ae534d2 | 2094 | cygwin_buf_t *pathbuf = (cygwin_buf_t *) alloca (exe_name_max_len * sizeof (cygwin_buf_t)); |
47f7ffdb JB |
2095 | |
2096 | len = GetModuleFileNameEx (current_process_handle, | |
2097 | dh_buf, pathbuf, exe_name_max_len); | |
2098 | if (len == 0) | |
2099 | error (_("Error getting executable filename: %u."), | |
2100 | (unsigned) GetLastError ()); | |
2101 | if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, exe_name_ret, | |
2102 | exe_name_max_len) < 0) | |
2103 | error (_("Error converting executable filename to POSIX: %d."), errno); | |
2104 | } | |
2105 | #else | |
2106 | len = GetModuleFileNameEx (current_process_handle, | |
2107 | dh_buf, exe_name_ret, exe_name_max_len); | |
2108 | if (len == 0) | |
2109 | error (_("Error getting executable filename: %u."), | |
2110 | (unsigned) GetLastError ()); | |
2111 | #endif | |
2112 | ||
2113 | return 1; /* success */ | |
2114 | } | |
2115 | ||
2116 | /* The pid_to_exec_file target_ops method for this platform. */ | |
2117 | ||
f6ac5f3d PA |
2118 | char * |
2119 | windows_nat_target::pid_to_exec_file (int pid) | |
47216e51 | 2120 | { |
b3c613f2 | 2121 | static char path[__PMAX]; |
10325bc5 | 2122 | #ifdef __CYGWIN__ |
581e13c1 | 2123 | /* Try to find exe name as symlink target of /proc/<pid>/exe. */ |
33605d39 CF |
2124 | int nchars; |
2125 | char procexe[sizeof ("/proc/4294967295/exe")]; | |
08850b56 PM |
2126 | |
2127 | xsnprintf (procexe, sizeof (procexe), "/proc/%u/exe", pid); | |
33605d39 CF |
2128 | nchars = readlink (procexe, path, sizeof(path)); |
2129 | if (nchars > 0 && nchars < sizeof (path)) | |
47216e51 | 2130 | { |
33605d39 CF |
2131 | path[nchars] = '\0'; /* Got it */ |
2132 | return path; | |
47216e51 | 2133 | } |
10325bc5 PA |
2134 | #endif |
2135 | ||
33605d39 | 2136 | /* If we get here then either Cygwin is hosed, this isn't a Cygwin version |
581e13c1 | 2137 | of gdb, or we're trying to debug a non-Cygwin windows executable. */ |
47f7ffdb | 2138 | if (!windows_get_exec_module_filename (path, sizeof (path))) |
33605d39 CF |
2139 | path[0] = '\0'; |
2140 | ||
2141 | return path; | |
47216e51 CV |
2142 | } |
2143 | ||
24e60978 SC |
2144 | /* Print status information about what we're accessing. */ |
2145 | ||
f6ac5f3d PA |
2146 | void |
2147 | windows_nat_target::files_info () | |
24e60978 | 2148 | { |
181e7f93 PA |
2149 | struct inferior *inf = current_inferior (); |
2150 | ||
24e60978 | 2151 | printf_unfiltered ("\tUsing the running image of %s %s.\n", |
181e7f93 | 2152 | inf->attach_flag ? "attached" : "child", |
a068643d | 2153 | target_pid_to_str (inferior_ptid).c_str ()); |
24e60978 SC |
2154 | } |
2155 | ||
cd44747c PM |
2156 | /* Modify CreateProcess parameters for use of a new separate console. |
2157 | Parameters are: | |
2158 | *FLAGS: DWORD parameter for general process creation flags. | |
2159 | *SI: STARTUPINFO structure, for which the console window size and | |
2160 | console buffer size is filled in if GDB is running in a console. | |
2161 | to create the new console. | |
2162 | The size of the used font is not available on all versions of | |
2163 | Windows OS. Furthermore, the current font might not be the default | |
2164 | font, but this is still better than before. | |
2165 | If the windows and buffer sizes are computed, | |
2166 | SI->DWFLAGS is changed so that this information is used | |
2167 | by CreateProcess function. */ | |
2168 | ||
2169 | static void | |
2170 | windows_set_console_info (STARTUPINFO *si, DWORD *flags) | |
2171 | { | |
2172 | HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, | |
2173 | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); | |
2174 | ||
2175 | if (hconsole != INVALID_HANDLE_VALUE) | |
2176 | { | |
2177 | CONSOLE_SCREEN_BUFFER_INFO sbinfo; | |
2178 | COORD font_size; | |
2179 | CONSOLE_FONT_INFO cfi; | |
2180 | ||
2181 | GetCurrentConsoleFont (hconsole, FALSE, &cfi); | |
2182 | font_size = GetConsoleFontSize (hconsole, cfi.nFont); | |
2183 | GetConsoleScreenBufferInfo(hconsole, &sbinfo); | |
2184 | si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1; | |
2185 | si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1; | |
2186 | if (font_size.X) | |
2187 | si->dwXSize *= font_size.X; | |
2188 | else | |
2189 | si->dwXSize *= 8; | |
2190 | if (font_size.Y) | |
2191 | si->dwYSize *= font_size.Y; | |
2192 | else | |
2193 | si->dwYSize *= 12; | |
2194 | si->dwXCountChars = sbinfo.dwSize.X; | |
2195 | si->dwYCountChars = sbinfo.dwSize.Y; | |
2196 | si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS; | |
2197 | } | |
2198 | *flags |= CREATE_NEW_CONSOLE; | |
2199 | } | |
2200 | ||
c93dbcba EZ |
2201 | #ifndef __CYGWIN__ |
2202 | /* Function called by qsort to sort environment strings. */ | |
2203 | ||
2204 | static int | |
2205 | envvar_cmp (const void *a, const void *b) | |
2206 | { | |
2207 | const char **p = (const char **) a; | |
2208 | const char **q = (const char **) b; | |
2209 | return strcasecmp (*p, *q); | |
2210 | } | |
2211 | #endif | |
2212 | ||
b7ff339d CV |
2213 | #ifdef __CYGWIN__ |
2214 | static void | |
2215 | clear_win32_environment (char **env) | |
2216 | { | |
2217 | int i; | |
2218 | size_t len; | |
2219 | wchar_t *copy = NULL, *equalpos; | |
2220 | ||
2221 | for (i = 0; env[i] && *env[i]; i++) | |
2222 | { | |
2223 | len = mbstowcs (NULL, env[i], 0) + 1; | |
2224 | copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); | |
2225 | mbstowcs (copy, env[i], len); | |
2226 | equalpos = wcschr (copy, L'='); | |
2227 | if (equalpos) | |
2228 | *equalpos = L'\0'; | |
2229 | SetEnvironmentVariableW (copy, NULL); | |
2230 | } | |
2231 | xfree (copy); | |
2232 | } | |
2233 | #endif | |
2234 | ||
8ba42bc5 EZ |
2235 | #ifndef __CYGWIN__ |
2236 | ||
2237 | /* Redirection of inferior I/O streams for native MS-Windows programs. | |
2238 | Unlike on Unix, where this is handled by invoking the inferior via | |
2239 | the shell, on MS-Windows we need to emulate the cmd.exe shell. | |
2240 | ||
2241 | The official documentation of the cmd.exe redirection features is here: | |
2242 | ||
2243 | http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/redirection.mspx | |
2244 | ||
2245 | (That page talks about Windows XP, but there's no newer | |
2246 | documentation, so we assume later versions of cmd.exe didn't change | |
2247 | anything.) | |
2248 | ||
2249 | Caveat: the documentation on that page seems to include a few lies. | |
2250 | For example, it describes strange constructs 1<&2 and 2<&1, which | |
2251 | seem to work only when 1>&2 resp. 2>&1 would make sense, and so I | |
2252 | think the cmd.exe parser of the redirection symbols simply doesn't | |
2253 | care about the < vs > distinction in these cases. Therefore, the | |
2254 | supported features are explicitly documented below. | |
2255 | ||
2256 | The emulation below aims at supporting all the valid use cases | |
2257 | supported by cmd.exe, which include: | |
2258 | ||
2259 | < FILE redirect standard input from FILE | |
2260 | 0< FILE redirect standard input from FILE | |
2261 | <&N redirect standard input from file descriptor N | |
2262 | 0<&N redirect standard input from file descriptor N | |
2263 | > FILE redirect standard output to FILE | |
2264 | >> FILE append standard output to FILE | |
2265 | 1>> FILE append standard output to FILE | |
2266 | >&N redirect standard output to file descriptor N | |
2267 | 1>&N redirect standard output to file descriptor N | |
2268 | >>&N append standard output to file descriptor N | |
2269 | 1>>&N append standard output to file descriptor N | |
2270 | 2> FILE redirect standard error to FILE | |
2271 | 2>> FILE append standard error to FILE | |
2272 | 2>&N redirect standard error to file descriptor N | |
2273 | 2>>&N append standard error to file descriptor N | |
2274 | ||
2275 | Note that using N > 2 in the above construct is supported, but | |
2276 | requires that the corresponding file descriptor be open by some | |
2277 | means elsewhere or outside GDB. Also note that using ">&0" or | |
2278 | "<&2" will generally fail, because the file descriptor redirected | |
2279 | from is normally open in an incompatible mode (e.g., FD 0 is open | |
2280 | for reading only). IOW, use of such tricks is not recommended; | |
2281 | you are on your own. | |
2282 | ||
2283 | We do NOT support redirection of file descriptors above 2, as in | |
2284 | "3>SOME-FILE", because MinGW compiled programs don't (supporting | |
2285 | that needs special handling in the startup code that MinGW | |
2286 | doesn't have). Pipes are also not supported. | |
2287 | ||
2288 | As for invalid use cases, where the redirection contains some | |
2289 | error, the emulation below will detect that and produce some | |
2290 | error and/or failure. But the behavior in those cases is not | |
2291 | bug-for-bug compatible with what cmd.exe does in those cases. | |
2292 | That's because what cmd.exe does then is not well defined, and | |
2293 | seems to be a side effect of the cmd.exe parsing of the command | |
2294 | line more than anything else. For example, try redirecting to an | |
2295 | invalid file name, as in "> foo:bar". | |
2296 | ||
2297 | There are also minor syntactic deviations from what cmd.exe does | |
2298 | in some corner cases. For example, it doesn't support the likes | |
2299 | of "> &foo" to mean redirect to file named literally "&foo"; we | |
2300 | do support that here, because that, too, sounds like some issue | |
2301 | with the cmd.exe parser. Another nicety is that we support | |
2302 | redirection targets that use file names with forward slashes, | |
2303 | something cmd.exe doesn't -- this comes in handy since GDB | |
2304 | file-name completion can be used when typing the command line for | |
2305 | the inferior. */ | |
2306 | ||
2307 | /* Support routines for redirecting standard handles of the inferior. */ | |
2308 | ||
2309 | /* Parse a single redirection spec, open/duplicate the specified | |
2310 | file/fd, and assign the appropriate value to one of the 3 standard | |
2311 | file descriptors. */ | |
2312 | static int | |
2313 | redir_open (const char *redir_string, int *inp, int *out, int *err) | |
2314 | { | |
2315 | int *fd, ref_fd = -2; | |
2316 | int mode; | |
2317 | const char *fname = redir_string + 1; | |
2318 | int rc = *redir_string; | |
2319 | ||
2320 | switch (rc) | |
2321 | { | |
2322 | case '0': | |
2323 | fname++; | |
2324 | /* FALLTHROUGH */ | |
2325 | case '<': | |
2326 | fd = inp; | |
2327 | mode = O_RDONLY; | |
2328 | break; | |
2329 | case '1': case '2': | |
2330 | fname++; | |
2331 | /* FALLTHROUGH */ | |
2332 | case '>': | |
2333 | fd = (rc == '2') ? err : out; | |
2334 | mode = O_WRONLY | O_CREAT; | |
2335 | if (*fname == '>') | |
2336 | { | |
2337 | fname++; | |
2338 | mode |= O_APPEND; | |
2339 | } | |
2340 | else | |
2341 | mode |= O_TRUNC; | |
2342 | break; | |
2343 | default: | |
2344 | return -1; | |
2345 | } | |
2346 | ||
2347 | if (*fname == '&' && '0' <= fname[1] && fname[1] <= '9') | |
2348 | { | |
2349 | /* A reference to a file descriptor. */ | |
2350 | char *fdtail; | |
2351 | ref_fd = (int) strtol (fname + 1, &fdtail, 10); | |
2352 | if (fdtail > fname + 1 && *fdtail == '\0') | |
2353 | { | |
2354 | /* Don't allow redirection when open modes are incompatible. */ | |
2355 | if ((ref_fd == 0 && (fd == out || fd == err)) | |
2356 | || ((ref_fd == 1 || ref_fd == 2) && fd == inp)) | |
2357 | { | |
2358 | errno = EPERM; | |
2359 | return -1; | |
2360 | } | |
2361 | if (ref_fd == 0) | |
2362 | ref_fd = *inp; | |
2363 | else if (ref_fd == 1) | |
2364 | ref_fd = *out; | |
2365 | else if (ref_fd == 2) | |
2366 | ref_fd = *err; | |
2367 | } | |
2368 | else | |
2369 | { | |
2370 | errno = EBADF; | |
2371 | return -1; | |
2372 | } | |
2373 | } | |
2374 | else | |
2375 | fname++; /* skip the separator space */ | |
2376 | /* If the descriptor is already open, close it. This allows | |
2377 | multiple specs of redirections for the same stream, which is | |
2378 | somewhat nonsensical, but still valid and supported by cmd.exe. | |
2379 | (But cmd.exe only opens a single file in this case, the one | |
2380 | specified by the last redirection spec on the command line.) */ | |
2381 | if (*fd >= 0) | |
2382 | _close (*fd); | |
2383 | if (ref_fd == -2) | |
2384 | { | |
2385 | *fd = _open (fname, mode, _S_IREAD | _S_IWRITE); | |
2386 | if (*fd < 0) | |
2387 | return -1; | |
2388 | } | |
2389 | else if (ref_fd == -1) | |
2390 | *fd = -1; /* reset to default destination */ | |
2391 | else | |
2392 | { | |
2393 | *fd = _dup (ref_fd); | |
2394 | if (*fd < 0) | |
2395 | return -1; | |
2396 | } | |
2397 | /* _open just sets a flag for O_APPEND, which won't be passed to the | |
2398 | inferior, so we need to actually move the file pointer. */ | |
2399 | if ((mode & O_APPEND) != 0) | |
2400 | _lseek (*fd, 0L, SEEK_END); | |
2401 | return 0; | |
2402 | } | |
2403 | ||
2404 | /* Canonicalize a single redirection spec and set up the corresponding | |
2405 | file descriptor as specified. */ | |
2406 | static int | |
2407 | redir_set_redirection (const char *s, int *inp, int *out, int *err) | |
2408 | { | |
2409 | char buf[__PMAX + 2 + 5]; /* extra space for quotes & redirection string */ | |
2410 | char *d = buf; | |
2411 | const char *start = s; | |
2412 | int quote = 0; | |
2413 | ||
2414 | *d++ = *s++; /* copy the 1st character, < or > or a digit */ | |
2415 | if ((*start == '>' || *start == '1' || *start == '2') | |
2416 | && *s == '>') | |
2417 | { | |
2418 | *d++ = *s++; | |
2419 | if (*s == '>' && *start != '>') | |
2420 | *d++ = *s++; | |
2421 | } | |
2422 | else if (*start == '0' && *s == '<') | |
2423 | *d++ = *s++; | |
2424 | /* cmd.exe recognizes "&N" only immediately after the redirection symbol. */ | |
2425 | if (*s != '&') | |
2426 | { | |
2427 | while (isspace (*s)) /* skip whitespace before file name */ | |
2428 | s++; | |
2429 | *d++ = ' '; /* separate file name with a single space */ | |
2430 | } | |
2431 | ||
2432 | /* Copy the file name. */ | |
2433 | while (*s) | |
2434 | { | |
2435 | /* Remove quoting characters from the file name in buf[]. */ | |
2436 | if (*s == '"') /* could support '..' quoting here */ | |
2437 | { | |
2438 | if (!quote) | |
2439 | quote = *s++; | |
2440 | else if (*s == quote) | |
2441 | { | |
2442 | quote = 0; | |
2443 | s++; | |
2444 | } | |
2445 | else | |
2446 | *d++ = *s++; | |
2447 | } | |
2448 | else if (*s == '\\') | |
2449 | { | |
2450 | if (s[1] == '"') /* could support '..' here */ | |
2451 | s++; | |
2452 | *d++ = *s++; | |
2453 | } | |
2454 | else if (isspace (*s) && !quote) | |
2455 | break; | |
2456 | else | |
2457 | *d++ = *s++; | |
2458 | if (d - buf >= sizeof (buf) - 1) | |
2459 | { | |
2460 | errno = ENAMETOOLONG; | |
2461 | return 0; | |
2462 | } | |
2463 | } | |
2464 | *d = '\0'; | |
2465 | ||
2466 | /* Windows doesn't allow redirection characters in file names, so we | |
2467 | can bail out early if they use them, or if there's no target file | |
2468 | name after the redirection symbol. */ | |
2469 | if (d[-1] == '>' || d[-1] == '<') | |
2470 | { | |
2471 | errno = ENOENT; | |
2472 | return 0; | |
2473 | } | |
2474 | if (redir_open (buf, inp, out, err) == 0) | |
2475 | return s - start; | |
2476 | return 0; | |
2477 | } | |
2478 | ||
2479 | /* Parse the command line for redirection specs and prepare the file | |
2480 | descriptors for the 3 standard streams accordingly. */ | |
2481 | static bool | |
2482 | redirect_inferior_handles (const char *cmd_orig, char *cmd, | |
2483 | int *inp, int *out, int *err) | |
2484 | { | |
2485 | const char *s = cmd_orig; | |
2486 | char *d = cmd; | |
2487 | int quote = 0; | |
2488 | bool retval = false; | |
2489 | ||
2490 | while (isspace (*s)) | |
2491 | *d++ = *s++; | |
2492 | ||
2493 | while (*s) | |
2494 | { | |
2495 | if (*s == '"') /* could also support '..' quoting here */ | |
2496 | { | |
2497 | if (!quote) | |
2498 | quote = *s; | |
2499 | else if (*s == quote) | |
2500 | quote = 0; | |
2501 | } | |
2502 | else if (*s == '\\') | |
2503 | { | |
2504 | if (s[1] == '"') /* escaped quote char */ | |
2505 | s++; | |
2506 | } | |
2507 | else if (!quote) | |
2508 | { | |
2509 | /* Process a single redirection candidate. */ | |
2510 | if (*s == '<' || *s == '>' | |
2511 | || ((*s == '1' || *s == '2') && s[1] == '>') | |
2512 | || (*s == '0' && s[1] == '<')) | |
2513 | { | |
2514 | int skip = redir_set_redirection (s, inp, out, err); | |
2515 | ||
2516 | if (skip <= 0) | |
2517 | return false; | |
2518 | retval = true; | |
2519 | s += skip; | |
2520 | } | |
2521 | } | |
2522 | if (*s) | |
2523 | *d++ = *s++; | |
2524 | } | |
2525 | *d = '\0'; | |
2526 | return retval; | |
2527 | } | |
2528 | #endif /* !__CYGWIN__ */ | |
2529 | ||
dc05df57 | 2530 | /* Start an inferior windows child process and sets inferior_ptid to its pid. |
24e60978 SC |
2531 | EXEC_FILE is the file to run. |
2532 | ALLARGS is a string containing the arguments to the program. | |
2533 | ENV is the environment vector to pass. Errors reported with error(). */ | |
2534 | ||
f6ac5f3d PA |
2535 | void |
2536 | windows_nat_target::create_inferior (const char *exec_file, | |
2537 | const std::string &origallargs, | |
2538 | char **in_env, int from_tty) | |
24e60978 | 2539 | { |
b3c613f2 | 2540 | STARTUPINFO si; |
41b4aadc | 2541 | #ifdef __CYGWIN__ |
b3c613f2 CF |
2542 | cygwin_buf_t real_path[__PMAX]; |
2543 | cygwin_buf_t shell[__PMAX]; /* Path to shell */ | |
d092c5a2 | 2544 | cygwin_buf_t infcwd[__PMAX]; |
d0d0ab16 | 2545 | const char *sh; |
b3c613f2 CF |
2546 | cygwin_buf_t *toexec; |
2547 | cygwin_buf_t *cygallargs; | |
2548 | cygwin_buf_t *args; | |
b7ff339d CV |
2549 | char **old_env = NULL; |
2550 | PWCHAR w32_env; | |
d0d0ab16 | 2551 | size_t len; |
2becadee CF |
2552 | int tty; |
2553 | int ostdin, ostdout, ostderr; | |
8ba42bc5 | 2554 | #else /* !__CYGWIN__ */ |
b3c613f2 | 2555 | char shell[__PMAX]; /* Path to shell */ |
5430098f | 2556 | const char *toexec; |
8ba42bc5 EZ |
2557 | char *args, *allargs_copy; |
2558 | size_t args_len, allargs_len; | |
2559 | int fd_inp = -1, fd_out = -1, fd_err = -1; | |
2560 | HANDLE tty = INVALID_HANDLE_VALUE; | |
8ba42bc5 | 2561 | bool redirected = false; |
c93dbcba EZ |
2562 | char *w32env; |
2563 | char *temp; | |
2564 | size_t envlen; | |
2565 | int i; | |
2566 | size_t envsize; | |
2567 | char **env; | |
8ba42bc5 | 2568 | #endif /* !__CYGWIN__ */ |
096c92dd | 2569 | const char *allargs = origallargs.c_str (); |
d0d0ab16 CV |
2570 | PROCESS_INFORMATION pi; |
2571 | BOOL ret; | |
2572 | DWORD flags = 0; | |
3cb3b8df | 2573 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
24e60978 SC |
2574 | |
2575 | if (!exec_file) | |
8a3fe4f8 | 2576 | error (_("No executable specified, use `target exec'.")); |
24e60978 | 2577 | |
d092c5a2 SDJ |
2578 | const char *inferior_cwd = get_inferior_cwd (); |
2579 | std::string expanded_infcwd; | |
2580 | if (inferior_cwd != NULL) | |
2581 | { | |
2582 | expanded_infcwd = gdb_tilde_expand (inferior_cwd); | |
2583 | /* Mirror slashes on inferior's cwd. */ | |
2584 | std::replace (expanded_infcwd.begin (), expanded_infcwd.end (), | |
2585 | '/', '\\'); | |
2586 | inferior_cwd = expanded_infcwd.c_str (); | |
2587 | } | |
2588 | ||
24e60978 SC |
2589 | memset (&si, 0, sizeof (si)); |
2590 | si.cb = sizeof (si); | |
2591 | ||
d0d0ab16 CV |
2592 | if (new_group) |
2593 | flags |= CREATE_NEW_PROCESS_GROUP; | |
2594 | ||
2595 | if (new_console) | |
cd44747c | 2596 | windows_set_console_info (&si, &flags); |
d0d0ab16 | 2597 | |
10325bc5 | 2598 | #ifdef __CYGWIN__ |
349b409f | 2599 | if (!useshell) |
dfe7f3ac | 2600 | { |
d0d0ab16 CV |
2601 | flags |= DEBUG_ONLY_THIS_PROCESS; |
2602 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path, | |
b3c613f2 | 2603 | __PMAX * sizeof (cygwin_buf_t)) < 0) |
d0d0ab16 | 2604 | error (_("Error starting executable: %d"), errno); |
dfe7f3ac | 2605 | toexec = real_path; |
b3c613f2 | 2606 | #ifdef __USEWIDE |
d0d0ab16 CV |
2607 | len = mbstowcs (NULL, allargs, 0) + 1; |
2608 | if (len == (size_t) -1) | |
2609 | error (_("Error starting executable: %d"), errno); | |
2610 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2611 | mbstowcs (cygallargs, allargs, len); | |
8ba42bc5 | 2612 | #else /* !__USEWIDE */ |
60c5c021 | 2613 | cygallargs = allargs; |
b3c613f2 | 2614 | #endif |
dfe7f3ac CF |
2615 | } |
2616 | else | |
2617 | { | |
974e6844 | 2618 | sh = get_shell (); |
b3c613f2 | 2619 | if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0) |
d0d0ab16 | 2620 | error (_("Error starting executable via shell: %d"), errno); |
b3c613f2 | 2621 | #ifdef __USEWIDE |
d0d0ab16 CV |
2622 | len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0) |
2623 | + mbstowcs (NULL, allargs, 0) + 2; | |
2624 | cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t)); | |
2625 | swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2626 | #else /* !__USEWIDE */ |
08850b56 PM |
2627 | len = (sizeof (" -c 'exec '") + strlen (exec_file) |
2628 | + strlen (allargs) + 2); | |
2629 | cygallargs = (char *) alloca (len); | |
2630 | xsnprintf (cygallargs, len, " -c 'exec %s %s'", exec_file, allargs); | |
8ba42bc5 | 2631 | #endif /* __USEWIDE */ |
dfe7f3ac | 2632 | toexec = shell; |
d0d0ab16 | 2633 | flags |= DEBUG_PROCESS; |
dfe7f3ac | 2634 | } |
b3c613f2 | 2635 | |
d092c5a2 SDJ |
2636 | if (inferior_cwd != NULL |
2637 | && cygwin_conv_path (CCP_POSIX_TO_WIN_W, inferior_cwd, | |
2638 | infcwd, strlen (inferior_cwd)) < 0) | |
2639 | error (_("Error converting inferior cwd: %d"), errno); | |
2640 | ||
b3c613f2 CF |
2641 | #ifdef __USEWIDE |
2642 | args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2) | |
2643 | * sizeof (wchar_t)); | |
d0d0ab16 CV |
2644 | wcscpy (args, toexec); |
2645 | wcscat (args, L" "); | |
2646 | wcscat (args, cygallargs); | |
8ba42bc5 | 2647 | #else /* !__USEWIDE */ |
b3c613f2 CF |
2648 | args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2); |
2649 | strcpy (args, toexec); | |
2650 | strcat (args, " "); | |
2651 | strcat (args, cygallargs); | |
8ba42bc5 | 2652 | #endif /* !__USEWIDE */ |
b3c613f2 | 2653 | |
b7ff339d CV |
2654 | #ifdef CW_CVT_ENV_TO_WINENV |
2655 | /* First try to create a direct Win32 copy of the POSIX environment. */ | |
2656 | w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); | |
2657 | if (w32_env != (PWCHAR) -1) | |
2658 | flags |= CREATE_UNICODE_ENVIRONMENT; | |
2659 | else | |
2660 | /* If that fails, fall back to old method tweaking GDB's environment. */ | |
8ba42bc5 | 2661 | #endif /* CW_CVT_ENV_TO_WINENV */ |
b7ff339d CV |
2662 | { |
2663 | /* Reset all Win32 environment variables to avoid leftover on next run. */ | |
2664 | clear_win32_environment (environ); | |
2665 | /* Prepare the environment vars for CreateProcess. */ | |
2666 | old_env = environ; | |
2667 | environ = in_env; | |
2668 | cygwin_internal (CW_SYNC_WINENV); | |
2669 | w32_env = NULL; | |
2670 | } | |
1750a5ef | 2671 | |
2becadee CF |
2672 | if (!inferior_io_terminal) |
2673 | tty = ostdin = ostdout = ostderr = -1; | |
2674 | else | |
2675 | { | |
2676 | tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY); | |
2677 | if (tty < 0) | |
2678 | { | |
2679 | print_sys_errmsg (inferior_io_terminal, errno); | |
2680 | ostdin = ostdout = ostderr = -1; | |
2681 | } | |
2682 | else | |
2683 | { | |
2684 | ostdin = dup (0); | |
2685 | ostdout = dup (1); | |
2686 | ostderr = dup (2); | |
2687 | dup2 (tty, 0); | |
2688 | dup2 (tty, 1); | |
2689 | dup2 (tty, 2); | |
2690 | } | |
2691 | } | |
d0d0ab16 CV |
2692 | |
2693 | windows_init_thread_list (); | |
b3c613f2 CF |
2694 | ret = CreateProcess (0, |
2695 | args, /* command line */ | |
2696 | NULL, /* Security */ | |
2697 | NULL, /* thread */ | |
2698 | TRUE, /* inherit handles */ | |
2699 | flags, /* start flags */ | |
b7ff339d | 2700 | w32_env, /* environment */ |
d092c5a2 SDJ |
2701 | inferior_cwd != NULL ? infcwd : NULL, /* current |
2702 | directory */ | |
b3c613f2 CF |
2703 | &si, |
2704 | &pi); | |
b7ff339d CV |
2705 | if (w32_env) |
2706 | /* Just free the Win32 environment, if it could be created. */ | |
2707 | free (w32_env); | |
2708 | else | |
2709 | { | |
2710 | /* Reset all environment variables to avoid leftover on next run. */ | |
2711 | clear_win32_environment (in_env); | |
2712 | /* Restore normal GDB environment variables. */ | |
2713 | environ = old_env; | |
2714 | cygwin_internal (CW_SYNC_WINENV); | |
2715 | } | |
2716 | ||
d0d0ab16 CV |
2717 | if (tty >= 0) |
2718 | { | |
6af79d7b | 2719 | ::close (tty); |
d0d0ab16 CV |
2720 | dup2 (ostdin, 0); |
2721 | dup2 (ostdout, 1); | |
2722 | dup2 (ostderr, 2); | |
6af79d7b JT |
2723 | ::close (ostdin); |
2724 | ::close (ostdout); | |
2725 | ::close (ostderr); | |
d0d0ab16 | 2726 | } |
8ba42bc5 EZ |
2727 | #else /* !__CYGWIN__ */ |
2728 | allargs_len = strlen (allargs); | |
2729 | allargs_copy = strcpy ((char *) alloca (allargs_len + 1), allargs); | |
2730 | if (strpbrk (allargs_copy, "<>") != NULL) | |
2731 | { | |
2732 | int e = errno; | |
2733 | errno = 0; | |
2734 | redirected = | |
2735 | redirect_inferior_handles (allargs, allargs_copy, | |
2736 | &fd_inp, &fd_out, &fd_err); | |
2737 | if (errno) | |
6d91ce9a | 2738 | warning (_("Error in redirection: %s."), safe_strerror (errno)); |
8ba42bc5 EZ |
2739 | else |
2740 | errno = e; | |
2741 | allargs_len = strlen (allargs_copy); | |
2742 | } | |
2743 | /* If not all the standard streams are redirected by the command | |
2744 | line, use inferior_io_terminal for those which aren't. */ | |
2745 | if (inferior_io_terminal | |
2746 | && !(fd_inp >= 0 && fd_out >= 0 && fd_err >= 0)) | |
41b4aadc CF |
2747 | { |
2748 | SECURITY_ATTRIBUTES sa; | |
2749 | sa.nLength = sizeof(sa); | |
2750 | sa.lpSecurityDescriptor = 0; | |
2751 | sa.bInheritHandle = TRUE; | |
2752 | tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE, | |
2753 | 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
2754 | if (tty == INVALID_HANDLE_VALUE) | |
2755 | warning (_("Warning: Failed to open TTY %s, error %#x."), | |
2756 | inferior_io_terminal, (unsigned) GetLastError ()); | |
8ba42bc5 EZ |
2757 | } |
2758 | if (redirected || tty != INVALID_HANDLE_VALUE) | |
2759 | { | |
2760 | if (fd_inp >= 0) | |
2761 | si.hStdInput = (HANDLE) _get_osfhandle (fd_inp); | |
2762 | else if (tty != INVALID_HANDLE_VALUE) | |
2763 | si.hStdInput = tty; | |
41b4aadc | 2764 | else |
8ba42bc5 EZ |
2765 | si.hStdInput = GetStdHandle (STD_INPUT_HANDLE); |
2766 | if (fd_out >= 0) | |
2767 | si.hStdOutput = (HANDLE) _get_osfhandle (fd_out); | |
2768 | else if (tty != INVALID_HANDLE_VALUE) | |
2769 | si.hStdOutput = tty; | |
2770 | else | |
2771 | si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE); | |
2772 | if (fd_err >= 0) | |
2773 | si.hStdError = (HANDLE) _get_osfhandle (fd_err); | |
2774 | else if (tty != INVALID_HANDLE_VALUE) | |
2775 | si.hStdError = tty; | |
2776 | else | |
2777 | si.hStdError = GetStdHandle (STD_ERROR_HANDLE); | |
2778 | si.dwFlags |= STARTF_USESTDHANDLES; | |
41b4aadc | 2779 | } |
2becadee | 2780 | |
8ba42bc5 EZ |
2781 | toexec = exec_file; |
2782 | /* Build the command line, a space-separated list of tokens where | |
2783 | the first token is the name of the module to be executed. | |
2784 | To avoid ambiguities introduced by spaces in the module name, | |
2785 | we quote it. */ | |
2786 | args_len = strlen (toexec) + 2 /* quotes */ + allargs_len + 2; | |
2787 | args = (char *) alloca (args_len); | |
2788 | xsnprintf (args, args_len, "\"%s\" %s", toexec, allargs_copy); | |
2789 | ||
2790 | flags |= DEBUG_ONLY_THIS_PROCESS; | |
2791 | ||
c93dbcba EZ |
2792 | /* CreateProcess takes the environment list as a null terminated set of |
2793 | strings (i.e. two nulls terminate the list). */ | |
2794 | ||
2795 | /* Get total size for env strings. */ | |
2796 | for (envlen = 0, i = 0; in_env[i] && *in_env[i]; i++) | |
2797 | envlen += strlen (in_env[i]) + 1; | |
2798 | ||
2799 | envsize = sizeof (in_env[0]) * (i + 1); | |
2800 | env = (char **) alloca (envsize); | |
2801 | memcpy (env, in_env, envsize); | |
2802 | /* Windows programs expect the environment block to be sorted. */ | |
2803 | qsort (env, i, sizeof (char *), envvar_cmp); | |
2804 | ||
0ae1c716 | 2805 | w32env = (char *) alloca (envlen + 1); |
c93dbcba EZ |
2806 | |
2807 | /* Copy env strings into new buffer. */ | |
2808 | for (temp = w32env, i = 0; env[i] && *env[i]; i++) | |
2809 | { | |
2810 | strcpy (temp, env[i]); | |
2811 | temp += strlen (temp) + 1; | |
2812 | } | |
2813 | ||
2814 | /* Final nil string to terminate new env. */ | |
2815 | *temp = 0; | |
2816 | ||
dc05df57 | 2817 | windows_init_thread_list (); |
d0d0ab16 CV |
2818 | ret = CreateProcessA (0, |
2819 | args, /* command line */ | |
2820 | NULL, /* Security */ | |
2821 | NULL, /* thread */ | |
2822 | TRUE, /* inherit handles */ | |
2823 | flags, /* start flags */ | |
c93dbcba | 2824 | w32env, /* environment */ |
d092c5a2 | 2825 | inferior_cwd, /* current directory */ |
d0d0ab16 CV |
2826 | &si, |
2827 | &pi); | |
41b4aadc CF |
2828 | if (tty != INVALID_HANDLE_VALUE) |
2829 | CloseHandle (tty); | |
8ba42bc5 EZ |
2830 | if (fd_inp >= 0) |
2831 | _close (fd_inp); | |
2832 | if (fd_out >= 0) | |
2833 | _close (fd_out); | |
2834 | if (fd_err >= 0) | |
2835 | _close (fd_err); | |
2836 | #endif /* !__CYGWIN__ */ | |
2becadee | 2837 | |
24e60978 | 2838 | if (!ret) |
d50a0ce2 | 2839 | error (_("Error creating process %s, (error %u)."), |
8a3fe4f8 | 2840 | exec_file, (unsigned) GetLastError ()); |
24e60978 | 2841 | |
c1766e7d PM |
2842 | CloseHandle (pi.hThread); |
2843 | CloseHandle (pi.hProcess); | |
2844 | ||
dfe7f3ac CF |
2845 | if (useshell && shell[0] != '\0') |
2846 | saw_create = -1; | |
2847 | else | |
2848 | saw_create = 0; | |
2849 | ||
f6ac5f3d | 2850 | do_initial_windows_stuff (this, pi.dwProcessId, 0); |
d3a09475 | 2851 | |
17617f2d | 2852 | /* windows_continue (DBG_CONTINUE, -1, 0); */ |
24e60978 SC |
2853 | } |
2854 | ||
f6ac5f3d PA |
2855 | void |
2856 | windows_nat_target::mourn_inferior () | |
24e60978 | 2857 | { |
17617f2d | 2858 | (void) windows_continue (DBG_CONTINUE, -1, 0); |
df7e5265 | 2859 | x86_cleanup_dregs(); |
bf25528d CF |
2860 | if (open_process_used) |
2861 | { | |
2862 | CHECK (CloseHandle (current_process_handle)); | |
2863 | open_process_used = 0; | |
2864 | } | |
f6ac5f3d | 2865 | inf_child_target::mourn_inferior (); |
24e60978 SC |
2866 | } |
2867 | ||
24e60978 | 2868 | /* Send a SIGINT to the process group. This acts just like the user typed a |
581e13c1 | 2869 | ^C on the controlling terminal. */ |
24e60978 | 2870 | |
f6ac5f3d PA |
2871 | void |
2872 | windows_nat_target::interrupt () | |
24e60978 | 2873 | { |
1ef980b9 | 2874 | DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n")); |
1e37c281 | 2875 | CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId)); |
3a4b77d8 | 2876 | registers_changed (); /* refresh register state */ |
24e60978 SC |
2877 | } |
2878 | ||
44f38867 PA |
2879 | /* Helper for windows_xfer_partial that handles memory transfers. |
2880 | Arguments are like target_xfer_partial. */ | |
2881 | ||
9b409511 | 2882 | static enum target_xfer_status |
44f38867 | 2883 | windows_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 | 2884 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) |
24e60978 | 2885 | { |
5732a500 | 2886 | SIZE_T done = 0; |
44f38867 | 2887 | BOOL success; |
9e52adf9 | 2888 | DWORD lasterror = 0; |
44f38867 PA |
2889 | |
2890 | if (writebuf != NULL) | |
24e60978 | 2891 | { |
a2388568 | 2892 | DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n", |
b55e14c7 | 2893 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2894 | success = WriteProcessMemory (current_process_handle, |
2895 | (LPVOID) (uintptr_t) memaddr, writebuf, | |
2896 | len, &done); | |
9e52adf9 | 2897 | if (!success) |
7126d5c8 | 2898 | lasterror = GetLastError (); |
2b008701 | 2899 | FlushInstructionCache (current_process_handle, |
2c647436 | 2900 | (LPCVOID) (uintptr_t) memaddr, len); |
24e60978 SC |
2901 | } |
2902 | else | |
2903 | { | |
a2388568 | 2904 | DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n", |
b55e14c7 | 2905 | pulongest (len), core_addr_to_string (memaddr))); |
44f38867 PA |
2906 | success = ReadProcessMemory (current_process_handle, |
2907 | (LPCVOID) (uintptr_t) memaddr, readbuf, | |
2908 | len, &done); | |
9e52adf9 | 2909 | if (!success) |
7126d5c8 | 2910 | lasterror = GetLastError (); |
24e60978 | 2911 | } |
9b409511 | 2912 | *xfered_len = (ULONGEST) done; |
9e52adf9 | 2913 | if (!success && lasterror == ERROR_PARTIAL_COPY && done > 0) |
9b409511 | 2914 | return TARGET_XFER_OK; |
9e52adf9 | 2915 | else |
9b409511 | 2916 | return success ? TARGET_XFER_OK : TARGET_XFER_E_IO; |
24e60978 SC |
2917 | } |
2918 | ||
f6ac5f3d PA |
2919 | void |
2920 | windows_nat_target::kill () | |
24e60978 | 2921 | { |
3cee93ac CF |
2922 | CHECK (TerminateProcess (current_process_handle, 0)); |
2923 | ||
b5edcb45 ILT |
2924 | for (;;) |
2925 | { | |
17617f2d | 2926 | if (!windows_continue (DBG_CONTINUE, -1, 1)) |
b5edcb45 | 2927 | break; |
3cee93ac | 2928 | if (!WaitForDebugEvent (¤t_event, INFINITE)) |
b5edcb45 | 2929 | break; |
3cee93ac | 2930 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) |
b5edcb45 ILT |
2931 | break; |
2932 | } | |
2933 | ||
9eee20eb | 2934 | target_mourn_inferior (inferior_ptid); /* Or just windows_mourn_inferior? */ |
24e60978 SC |
2935 | } |
2936 | ||
f6ac5f3d PA |
2937 | void |
2938 | windows_nat_target::close () | |
24e60978 | 2939 | { |
dc05df57 | 2940 | DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n", |
e99b03dc | 2941 | inferior_ptid.pid ())); |
24e60978 | 2942 | } |
1ef980b9 | 2943 | |
581e13c1 | 2944 | /* Convert pid to printable format. */ |
a068643d | 2945 | std::string |
f6ac5f3d | 2946 | windows_nat_target::pid_to_str (ptid_t ptid) |
24e60978 | 2947 | { |
cc6bcb54 | 2948 | if (ptid.tid () != 0) |
a068643d | 2949 | return string_printf ("Thread %d.0x%lx", ptid.pid (), ptid.tid ()); |
2dc38344 PA |
2950 | |
2951 | return normal_pid_to_str (ptid); | |
3ee6f623 CF |
2952 | } |
2953 | ||
9b409511 | 2954 | static enum target_xfer_status |
dc05df57 | 2955 | windows_xfer_shared_libraries (struct target_ops *ops, |
9b409511 YQ |
2956 | enum target_object object, const char *annex, |
2957 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
2958 | ULONGEST offset, ULONGEST len, | |
2959 | ULONGEST *xfered_len) | |
3cb8e7f6 | 2960 | { |
de1b3c3d PA |
2961 | struct obstack obstack; |
2962 | const char *buf; | |
2963 | LONGEST len_avail; | |
3cb8e7f6 | 2964 | struct so_list *so; |
3cb8e7f6 | 2965 | |
de1b3c3d | 2966 | if (writebuf) |
2ed4b548 | 2967 | return TARGET_XFER_E_IO; |
3cb8e7f6 | 2968 | |
de1b3c3d PA |
2969 | obstack_init (&obstack); |
2970 | obstack_grow_str (&obstack, "<library-list>\n"); | |
2971 | for (so = solib_start.next; so; so = so->next) | |
d0e449a1 SM |
2972 | { |
2973 | lm_info_windows *li = (lm_info_windows *) so->lm_info; | |
2974 | ||
2975 | windows_xfer_shared_library (so->so_name, (CORE_ADDR) | |
2976 | (uintptr_t) li->load_addr, | |
2977 | target_gdbarch (), &obstack); | |
2978 | } | |
de1b3c3d | 2979 | obstack_grow_str0 (&obstack, "</library-list>\n"); |
3cb8e7f6 | 2980 | |
0ae1c716 | 2981 | buf = (const char *) obstack_finish (&obstack); |
de1b3c3d PA |
2982 | len_avail = strlen (buf); |
2983 | if (offset >= len_avail) | |
49dc7f4b PM |
2984 | len= 0; |
2985 | else | |
2986 | { | |
2987 | if (len > len_avail - offset) | |
2988 | len = len_avail - offset; | |
2989 | memcpy (readbuf, buf + offset, len); | |
2990 | } | |
3cb8e7f6 | 2991 | |
de1b3c3d | 2992 | obstack_free (&obstack, NULL); |
9b409511 | 2993 | *xfered_len = (ULONGEST) len; |
0837c976 | 2994 | return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF; |
3cb8e7f6 CF |
2995 | } |
2996 | ||
f6ac5f3d PA |
2997 | enum target_xfer_status |
2998 | windows_nat_target::xfer_partial (enum target_object object, | |
2999 | const char *annex, gdb_byte *readbuf, | |
2f4f025f TT |
3000 | const gdb_byte *writebuf, ULONGEST offset, |
3001 | ULONGEST len, ULONGEST *xfered_len) | |
3cb8e7f6 | 3002 | { |
de1b3c3d | 3003 | switch (object) |
3cb8e7f6 | 3004 | { |
de1b3c3d | 3005 | case TARGET_OBJECT_MEMORY: |
9b409511 | 3006 | return windows_xfer_memory (readbuf, writebuf, offset, len, xfered_len); |
de1b3c3d PA |
3007 | |
3008 | case TARGET_OBJECT_LIBRARIES: | |
f6ac5f3d | 3009 | return windows_xfer_shared_libraries (this, object, annex, readbuf, |
9b409511 | 3010 | writebuf, offset, len, xfered_len); |
3929abe9 | 3011 | |
de1b3c3d | 3012 | default: |
2f4f025f | 3013 | if (beneath () == NULL) |
178d6a63 JB |
3014 | { |
3015 | /* This can happen when requesting the transfer of unsupported | |
3016 | objects before a program has been started (and therefore | |
3017 | with the current_target having no target beneath). */ | |
3018 | return TARGET_XFER_E_IO; | |
3019 | } | |
2f4f025f TT |
3020 | return beneath ()->xfer_partial (object, annex, |
3021 | readbuf, writebuf, offset, len, | |
3022 | xfered_len); | |
3929abe9 | 3023 | } |
02c5aecd CF |
3024 | } |
3025 | ||
711e434b PM |
3026 | /* Provide thread local base, i.e. Thread Information Block address. |
3027 | Returns 1 if ptid is found and sets *ADDR to thread_local_base. */ | |
3028 | ||
57810aa7 | 3029 | bool |
f6ac5f3d | 3030 | windows_nat_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) |
711e434b | 3031 | { |
876d1cd7 | 3032 | windows_thread_info *th; |
711e434b | 3033 | |
cc6bcb54 | 3034 | th = thread_rec (ptid.tid (), 0); |
711e434b | 3035 | if (th == NULL) |
57810aa7 | 3036 | return false; |
711e434b PM |
3037 | |
3038 | if (addr != NULL) | |
3039 | *addr = th->thread_local_base; | |
3040 | ||
57810aa7 | 3041 | return true; |
711e434b PM |
3042 | } |
3043 | ||
f6ac5f3d PA |
3044 | ptid_t |
3045 | windows_nat_target::get_ada_task_ptid (long lwp, long thread) | |
1e2f1c5c | 3046 | { |
e99b03dc | 3047 | return ptid_t (inferior_ptid.pid (), 0, lwp); |
1e2f1c5c JB |
3048 | } |
3049 | ||
24cdb46e РИ |
3050 | /* Implementation of the to_thread_name method. */ |
3051 | ||
f6ac5f3d PA |
3052 | const char * |
3053 | windows_nat_target::thread_name (struct thread_info *thr) | |
24cdb46e | 3054 | { |
cc6bcb54 | 3055 | return thread_rec (thr->ptid.tid (), 0)->name; |
24cdb46e РИ |
3056 | } |
3057 | ||
24e60978 SC |
3058 | |
3059 | void | |
dc05df57 | 3060 | _initialize_windows_nat (void) |
24e60978 | 3061 | { |
df7e5265 GB |
3062 | x86_dr_low.set_control = cygwin_set_dr7; |
3063 | x86_dr_low.set_addr = cygwin_set_dr; | |
3064 | x86_dr_low.get_addr = cygwin_get_dr; | |
3065 | x86_dr_low.get_status = cygwin_get_dr6; | |
3066 | x86_dr_low.get_control = cygwin_get_dr7; | |
51a9c8c5 | 3067 | |
df7e5265 GB |
3068 | /* x86_dr_low.debug_register_length field is set by |
3069 | calling x86_set_debug_register_length function | |
51a9c8c5 | 3070 | in processor windows specific native file. */ |
fa58ee11 | 3071 | |
d9f719f1 | 3072 | add_inf_child_target (&the_windows_nat_target); |
1ef980b9 | 3073 | |
d0d0ab16 CV |
3074 | #ifdef __CYGWIN__ |
3075 | cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); | |
3076 | #endif | |
3077 | ||
463888ab РИ |
3078 | add_com ("signal-event", class_run, signal_event_command, _("\ |
3079 | Signal a crashed process with event ID, to allow its debugging.\n\ | |
3080 | This command is needed in support of setting up GDB as JIT debugger on \ | |
3081 | MS-Windows. The command should be invoked from the GDB command line using \ | |
3082 | the '-ex' command-line option. The ID of the event that blocks the \ | |
3083 | crashed process will be supplied by the Windows JIT debugging mechanism.")); | |
3084 | ||
10325bc5 | 3085 | #ifdef __CYGWIN__ |
5bf193a2 AC |
3086 | add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ |
3087 | Set use of shell to start subprocess."), _("\ | |
3088 | Show use of shell to start subprocess."), NULL, | |
3089 | NULL, | |
3090 | NULL, /* FIXME: i18n: */ | |
3091 | &setlist, &showlist); | |
3092 | ||
581e13c1 MS |
3093 | add_setshow_boolean_cmd ("cygwin-exceptions", class_support, |
3094 | &cygwin_exceptions, _("\ | |
09280ddf CF |
3095 | Break when an exception is detected in the Cygwin DLL itself."), _("\ |
3096 | Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL, | |
3097 | NULL, | |
3098 | NULL, /* FIXME: i18n: */ | |
3099 | &setlist, &showlist); | |
10325bc5 | 3100 | #endif |
09280ddf | 3101 | |
5bf193a2 AC |
3102 | add_setshow_boolean_cmd ("new-console", class_support, &new_console, _("\ |
3103 | Set creation of new console when creating child process."), _("\ | |
3104 | Show creation of new console when creating child process."), NULL, | |
3105 | NULL, | |
3106 | NULL, /* FIXME: i18n: */ | |
3107 | &setlist, &showlist); | |
3108 | ||
3109 | add_setshow_boolean_cmd ("new-group", class_support, &new_group, _("\ | |
3110 | Set creation of new group when creating child process."), _("\ | |
3111 | Show creation of new group when creating child process."), NULL, | |
3112 | NULL, | |
3113 | NULL, /* FIXME: i18n: */ | |
3114 | &setlist, &showlist); | |
3115 | ||
3116 | add_setshow_boolean_cmd ("debugexec", class_support, &debug_exec, _("\ | |
3117 | Set whether to display execution in child process."), _("\ | |
3118 | Show whether to display execution in child process."), NULL, | |
3119 | NULL, | |
3120 | NULL, /* FIXME: i18n: */ | |
3121 | &setlist, &showlist); | |
3122 | ||
3123 | add_setshow_boolean_cmd ("debugevents", class_support, &debug_events, _("\ | |
3124 | Set whether to display kernel events in child process."), _("\ | |
3125 | Show whether to display kernel events in child process."), NULL, | |
3126 | NULL, | |
3127 | NULL, /* FIXME: i18n: */ | |
3128 | &setlist, &showlist); | |
3129 | ||
3130 | add_setshow_boolean_cmd ("debugmemory", class_support, &debug_memory, _("\ | |
3131 | Set whether to display memory accesses in child process."), _("\ | |
3132 | Show whether to display memory accesses in child process."), NULL, | |
3133 | NULL, | |
3134 | NULL, /* FIXME: i18n: */ | |
3135 | &setlist, &showlist); | |
3136 | ||
3137 | add_setshow_boolean_cmd ("debugexceptions", class_support, | |
3138 | &debug_exceptions, _("\ | |
3139 | Set whether to display kernel exceptions in child process."), _("\ | |
3140 | Show whether to display kernel exceptions in child process."), NULL, | |
3141 | NULL, | |
3142 | NULL, /* FIXME: i18n: */ | |
3143 | &setlist, &showlist); | |
1ef980b9 | 3144 | |
711e434b | 3145 | init_w32_command_list (); |
c1748f97 PM |
3146 | |
3147 | add_cmd ("selector", class_info, display_selectors, | |
1a966eab | 3148 | _("Display selectors infos."), |
c1748f97 | 3149 | &info_w32_cmdlist); |
24e60978 | 3150 | } |
3cee93ac | 3151 | |
fa4ba8da PM |
3152 | /* Hardware watchpoint support, adapted from go32-nat.c code. */ |
3153 | ||
3154 | /* Pass the address ADDR to the inferior in the I'th debug register. | |
3155 | Here we just store the address in dr array, the registers will be | |
dc05df57 | 3156 | actually set up when windows_continue is called. */ |
9bb9e8ad | 3157 | static void |
fa4ba8da PM |
3158 | cygwin_set_dr (int i, CORE_ADDR addr) |
3159 | { | |
3160 | if (i < 0 || i > 3) | |
3161 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3162 | _("Invalid register %d in cygwin_set_dr.\n"), i); |
41b4aadc | 3163 | dr[i] = addr; |
fa4ba8da PM |
3164 | debug_registers_changed = 1; |
3165 | debug_registers_used = 1; | |
3166 | } | |
3167 | ||
3168 | /* Pass the value VAL to the inferior in the DR7 debug control | |
3169 | register. Here we just store the address in D_REGS, the watchpoint | |
dc05df57 | 3170 | will be actually set up in windows_wait. */ |
9bb9e8ad PM |
3171 | static void |
3172 | cygwin_set_dr7 (unsigned long val) | |
fa4ba8da | 3173 | { |
9bb9e8ad | 3174 | dr[7] = (CORE_ADDR) val; |
fa4ba8da PM |
3175 | debug_registers_changed = 1; |
3176 | debug_registers_used = 1; | |
3177 | } | |
3178 | ||
7b50312a PA |
3179 | /* Get the value of debug register I from the inferior. */ |
3180 | ||
3181 | static CORE_ADDR | |
3182 | cygwin_get_dr (int i) | |
3183 | { | |
3184 | return dr[i]; | |
3185 | } | |
3186 | ||
fa4ba8da PM |
3187 | /* Get the value of the DR6 debug status register from the inferior. |
3188 | Here we just return the value stored in dr[6] | |
3189 | by the last call to thread_rec for current_event.dwThreadId id. */ | |
9bb9e8ad | 3190 | static unsigned long |
fa4ba8da PM |
3191 | cygwin_get_dr6 (void) |
3192 | { | |
9bb9e8ad | 3193 | return (unsigned long) dr[6]; |
fa4ba8da PM |
3194 | } |
3195 | ||
7b50312a PA |
3196 | /* Get the value of the DR7 debug status register from the inferior. |
3197 | Here we just return the value stored in dr[7] by the last call to | |
3198 | thread_rec for current_event.dwThreadId id. */ | |
3199 | ||
3200 | static unsigned long | |
3201 | cygwin_get_dr7 (void) | |
3202 | { | |
3203 | return (unsigned long) dr[7]; | |
3204 | } | |
3205 | ||
2dc38344 | 3206 | /* Determine if the thread referenced by "ptid" is alive |
3cee93ac | 3207 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 |
581e13c1 | 3208 | it means that the thread has died. Otherwise it is assumed to be alive. */ |
f6ac5f3d | 3209 | |
57810aa7 | 3210 | bool |
f6ac5f3d | 3211 | windows_nat_target::thread_alive (ptid_t ptid) |
3cee93ac | 3212 | { |
2dc38344 PA |
3213 | int tid; |
3214 | ||
cc6bcb54 TT |
3215 | gdb_assert (ptid.tid () != 0); |
3216 | tid = ptid.tid (); | |
39f77062 | 3217 | |
57810aa7 | 3218 | return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) != WAIT_OBJECT_0; |
3cee93ac CF |
3219 | } |
3220 | ||
2a3d5645 CF |
3221 | void |
3222 | _initialize_check_for_gdb_ini (void) | |
3223 | { | |
3224 | char *homedir; | |
3225 | if (inhibit_gdbinit) | |
3226 | return; | |
3227 | ||
3228 | homedir = getenv ("HOME"); | |
3229 | if (homedir) | |
3230 | { | |
3231 | char *p; | |
3232 | char *oldini = (char *) alloca (strlen (homedir) + | |
1270fac6 | 3233 | sizeof ("gdb.ini") + 1); |
2a3d5645 CF |
3234 | strcpy (oldini, homedir); |
3235 | p = strchr (oldini, '\0'); | |
0ba1096a | 3236 | if (p > oldini && !IS_DIR_SEPARATOR (p[-1])) |
2a3d5645 CF |
3237 | *p++ = '/'; |
3238 | strcpy (p, "gdb.ini"); | |
3239 | if (access (oldini, 0) == 0) | |
3240 | { | |
3241 | int len = strlen (oldini); | |
1270fac6 | 3242 | char *newini = (char *) alloca (len + 2); |
08850b56 | 3243 | |
1270fac6 | 3244 | xsnprintf (newini, len + 2, "%.*s.gdbinit", |
08850b56 | 3245 | (int) (len - (sizeof ("gdb.ini") - 1)), oldini); |
8a3fe4f8 | 3246 | warning (_("obsolete '%s' found. Rename to '%s'."), oldini, newini); |
2a3d5645 CF |
3247 | } |
3248 | } | |
3249 | } | |
33605d39 | 3250 | |
2b008701 | 3251 | /* Define dummy functions which always return error for the rare cases where |
581e13c1 | 3252 | these functions could not be found. */ |
2b008701 CF |
3253 | static BOOL WINAPI |
3254 | bad_DebugActiveProcessStop (DWORD w) | |
3255 | { | |
3256 | return FALSE; | |
3257 | } | |
3258 | static BOOL WINAPI | |
3259 | bad_DebugBreakProcess (HANDLE w) | |
3260 | { | |
3261 | return FALSE; | |
3262 | } | |
3263 | static BOOL WINAPI | |
3264 | bad_DebugSetProcessKillOnExit (BOOL w) | |
3265 | { | |
3266 | return FALSE; | |
3267 | } | |
3268 | static BOOL WINAPI | |
3269 | bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z) | |
3270 | { | |
3271 | return FALSE; | |
3272 | } | |
b3c613f2 CF |
3273 | |
3274 | #ifdef __USEWIDE | |
2b008701 | 3275 | static DWORD WINAPI |
b3c613f2 | 3276 | bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z) |
2b008701 CF |
3277 | { |
3278 | return 0; | |
3279 | } | |
d0d0ab16 CV |
3280 | #else |
3281 | static DWORD WINAPI | |
b3c613f2 | 3282 | bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z) |
d0d0ab16 CV |
3283 | { |
3284 | return 0; | |
3285 | } | |
3286 | #endif | |
b3c613f2 | 3287 | |
2b008701 CF |
3288 | static BOOL WINAPI |
3289 | bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z) | |
3290 | { | |
3291 | return FALSE; | |
3292 | } | |
3293 | ||
418c6cb3 CF |
3294 | static BOOL WINAPI |
3295 | bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y) | |
3296 | { | |
3297 | return FALSE; | |
3298 | } | |
3299 | ||
cd44747c PM |
3300 | static BOOL WINAPI |
3301 | bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f) | |
3302 | { | |
3303 | f->nFont = 0; | |
3304 | return 1; | |
3305 | } | |
3306 | static COORD WINAPI | |
3307 | bad_GetConsoleFontSize (HANDLE w, DWORD nFont) | |
3308 | { | |
3309 | COORD size; | |
3310 | size.X = 8; | |
3311 | size.Y = 12; | |
3312 | return size; | |
3313 | } | |
3314 | ||
2b008701 | 3315 | /* Load any functions which may not be available in ancient versions |
581e13c1 | 3316 | of Windows. */ |
d603d4b3 | 3317 | |
33605d39 | 3318 | void |
2b008701 | 3319 | _initialize_loadable (void) |
33605d39 | 3320 | { |
2b008701 CF |
3321 | HMODULE hm = NULL; |
3322 | ||
43499ea3 PA |
3323 | #define GPA(m, func) \ |
3324 | func = (func ## _ftype *) GetProcAddress (m, #func) | |
3325 | ||
2b008701 CF |
3326 | hm = LoadLibrary ("kernel32.dll"); |
3327 | if (hm) | |
33605d39 | 3328 | { |
43499ea3 PA |
3329 | GPA (hm, DebugActiveProcessStop); |
3330 | GPA (hm, DebugBreakProcess); | |
3331 | GPA (hm, DebugSetProcessKillOnExit); | |
3332 | GPA (hm, GetConsoleFontSize); | |
3333 | GPA (hm, DebugActiveProcessStop); | |
3334 | GPA (hm, GetCurrentConsoleFont); | |
2b008701 | 3335 | } |
33605d39 | 3336 | |
2b008701 | 3337 | /* Set variables to dummy versions of these processes if the function |
581e13c1 | 3338 | wasn't found in kernel32.dll. */ |
b3c613f2 CF |
3339 | if (!DebugBreakProcess) |
3340 | DebugBreakProcess = bad_DebugBreakProcess; | |
3341 | if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit) | |
2b008701 | 3342 | { |
b3c613f2 CF |
3343 | DebugActiveProcessStop = bad_DebugActiveProcessStop; |
3344 | DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit; | |
2b008701 | 3345 | } |
cd44747c PM |
3346 | if (!GetConsoleFontSize) |
3347 | GetConsoleFontSize = bad_GetConsoleFontSize; | |
3348 | if (!GetCurrentConsoleFont) | |
3349 | GetCurrentConsoleFont = bad_GetCurrentConsoleFont; | |
33605d39 | 3350 | |
2b008701 | 3351 | /* Load optional functions used for retrieving filename information |
581e13c1 | 3352 | associated with the currently debugged process or its dlls. */ |
2b008701 CF |
3353 | hm = LoadLibrary ("psapi.dll"); |
3354 | if (hm) | |
3355 | { | |
43499ea3 PA |
3356 | GPA (hm, EnumProcessModules); |
3357 | GPA (hm, GetModuleInformation); | |
aec47d1d JB |
3358 | GetModuleFileNameEx = (GetModuleFileNameEx_ftype *) |
3359 | GetProcAddress (hm, GetModuleFileNameEx_name); | |
33605d39 CF |
3360 | } |
3361 | ||
b3c613f2 | 3362 | if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx) |
2b008701 CF |
3363 | { |
3364 | /* Set variables to dummy versions of these processes if the function | |
581e13c1 | 3365 | wasn't found in psapi.dll. */ |
b3c613f2 CF |
3366 | EnumProcessModules = bad_EnumProcessModules; |
3367 | GetModuleInformation = bad_GetModuleInformation; | |
3368 | GetModuleFileNameEx = bad_GetModuleFileNameEx; | |
581e13c1 MS |
3369 | /* This will probably fail on Windows 9x/Me. Let the user know |
3370 | that we're missing some functionality. */ | |
3371 | warning(_("\ | |
3372 | cannot automatically find executable file or library to read symbols.\n\ | |
3373 | Use \"file\" or \"dll\" command to load executable/libraries directly.")); | |
418c6cb3 CF |
3374 | } |
3375 | ||
3376 | hm = LoadLibrary ("advapi32.dll"); | |
3377 | if (hm) | |
3378 | { | |
43499ea3 PA |
3379 | GPA (hm, OpenProcessToken); |
3380 | GPA (hm, LookupPrivilegeValueA); | |
3381 | GPA (hm, AdjustTokenPrivileges); | |
418c6cb3 | 3382 | /* Only need to set one of these since if OpenProcessToken fails nothing |
581e13c1 MS |
3383 | else is needed. */ |
3384 | if (!OpenProcessToken || !LookupPrivilegeValueA | |
3385 | || !AdjustTokenPrivileges) | |
b3c613f2 | 3386 | OpenProcessToken = bad_OpenProcessToken; |
2b008701 | 3387 | } |
43499ea3 PA |
3388 | |
3389 | #undef GPA | |
33605d39 | 3390 | } |