1 /* Low level interface to Windows debugging, for gdbserver.
2 Copyright (C) 2006-2014 Free Software Foundation, Inc.
4 Contributed by Leo Zayas. Based on "win32-nat.c" from GDB.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "gdb/signals.h"
24 #include "gdb/fileio.h"
25 #include "mem-break.h"
26 #include "win32-low.h"
27 #include "gdbthread.h"
40 #include <sys/cygwin.h>
43 #define OUTMSG(X) do { printf X; fflush (stderr); } while (0)
56 #define _T(x) TEXT (x)
60 #define COUNTOF(STR) (sizeof (STR) / sizeof ((STR)[0]))
64 # define GETPROCADDRESS(DLL, PROC) \
65 ((winapi_ ## PROC) GetProcAddress (DLL, TEXT (#PROC)))
67 # define GETPROCADDRESS(DLL, PROC) \
68 ((winapi_ ## PROC) GetProcAddress (DLL, #PROC))
71 int using_threads
= 1;
74 static int attaching
= 0;
75 static HANDLE current_process_handle
= NULL
;
76 static DWORD current_process_id
= 0;
77 static DWORD main_thread_id
= 0;
78 static enum gdb_signal last_sig
= GDB_SIGNAL_0
;
80 /* The current debug event from WaitForDebugEvent. */
81 static DEBUG_EVENT current_event
;
83 /* A status that hasn't been reported to the core yet, and so
84 win32_wait should return it next, instead of fetching the next
85 debug event off the win32 API. */
86 static struct target_waitstatus cached_status
;
88 /* Non zero if an interrupt request is to be satisfied by suspending
90 static int soft_interrupt_requested
= 0;
92 /* Non zero if the inferior is stopped in a simulated breakpoint done
93 by suspending all the threads. */
94 static int faked_breakpoint
= 0;
96 const struct target_desc
*win32_tdesc
;
98 #define NUM_REGS (the_low_target.num_regs)
100 typedef BOOL (WINAPI
*winapi_DebugActiveProcessStop
) (DWORD dwProcessId
);
101 typedef BOOL (WINAPI
*winapi_DebugSetProcessKillOnExit
) (BOOL KillOnExit
);
102 typedef BOOL (WINAPI
*winapi_DebugBreakProcess
) (HANDLE
);
103 typedef BOOL (WINAPI
*winapi_GenerateConsoleCtrlEvent
) (DWORD
, DWORD
);
105 static ptid_t
win32_wait (ptid_t ptid
, struct target_waitstatus
*ourstatus
,
107 static void win32_resume (struct thread_resume
*resume_info
, size_t n
);
109 static void win32_add_all_dlls (void);
112 /* Get the thread ID from the current selected inferior (the current
115 current_inferior_ptid (void)
120 /* The current debug event from WaitForDebugEvent. */
122 debug_event_ptid (DEBUG_EVENT
*event
)
124 return ptid_build (event
->dwProcessId
, event
->dwThreadId
, 0);
127 /* Get the thread context of the thread associated with TH. */
130 win32_get_thread_context (win32_thread_info
*th
)
132 memset (&th
->context
, 0, sizeof (CONTEXT
));
133 (*the_low_target
.get_thread_context
) (th
, ¤t_event
);
135 memcpy (&th
->base_context
, &th
->context
, sizeof (CONTEXT
));
139 /* Set the thread context of the thread associated with TH. */
142 win32_set_thread_context (win32_thread_info
*th
)
145 /* Calling SuspendThread on a thread that is running kernel code
146 will report that the suspending was successful, but in fact, that
147 will often not be true. In those cases, the context returned by
148 GetThreadContext will not be correct by the time the thread
149 stops, hence we can't set that context back into the thread when
150 resuming - it will most likelly crash the inferior.
151 Unfortunately, there is no way to know when the thread will
152 really stop. To work around it, we'll only write the context
153 back to the thread when either the user or GDB explicitly change
154 it between stopping and resuming. */
155 if (memcmp (&th
->context
, &th
->base_context
, sizeof (CONTEXT
)) != 0)
157 (*the_low_target
.set_thread_context
) (th
, ¤t_event
);
160 /* Find a thread record given a thread id. If GET_CONTEXT is set then
161 also retrieve the context for this thread. */
162 static win32_thread_info
*
163 thread_rec (ptid_t ptid
, int get_context
)
165 struct thread_info
*thread
;
166 win32_thread_info
*th
;
168 thread
= (struct thread_info
*) find_inferior_id (&all_threads
, ptid
);
172 th
= inferior_target_data (thread
);
173 if (get_context
&& th
->context
.ContextFlags
== 0)
177 if (SuspendThread (th
->h
) == (DWORD
) -1)
179 DWORD err
= GetLastError ();
180 OUTMSG (("warning: SuspendThread failed in thread_rec, "
181 "(error %d): %s\n", (int) err
, strwinerror (err
)));
187 win32_get_thread_context (th
);
193 /* Add a thread to the thread list. */
194 static win32_thread_info
*
195 child_add_thread (DWORD pid
, DWORD tid
, HANDLE h
, void *tlb
)
197 win32_thread_info
*th
;
198 ptid_t ptid
= ptid_build (pid
, tid
, 0);
200 if ((th
= thread_rec (ptid
, FALSE
)))
203 th
= xcalloc (1, sizeof (*th
));
206 th
->thread_local_base
= (CORE_ADDR
) (uintptr_t) tlb
;
208 add_thread (ptid
, th
);
210 if (the_low_target
.thread_added
!= NULL
)
211 (*the_low_target
.thread_added
) (th
);
216 /* Delete a thread from the list of threads. */
218 delete_thread_info (struct inferior_list_entry
*thread
)
220 win32_thread_info
*th
= inferior_target_data ((struct thread_info
*) thread
);
222 remove_thread ((struct thread_info
*) thread
);
227 /* Delete a thread from the list of threads. */
229 child_delete_thread (DWORD pid
, DWORD tid
)
231 struct inferior_list_entry
*thread
;
234 /* If the last thread is exiting, just return. */
235 if (one_inferior_p (&all_threads
))
238 ptid
= ptid_build (pid
, tid
, 0);
239 thread
= find_inferior_id (&all_threads
, ptid
);
243 delete_thread_info (thread
);
246 /* These watchpoint related wrapper functions simply pass on the function call
247 if the low target has registered a corresponding function. */
250 win32_insert_point (char type
, CORE_ADDR addr
, int len
)
252 if (the_low_target
.insert_point
!= NULL
)
253 return the_low_target
.insert_point (type
, addr
, len
);
255 /* Unsupported (see target.h). */
260 win32_remove_point (char type
, CORE_ADDR addr
, int len
)
262 if (the_low_target
.remove_point
!= NULL
)
263 return the_low_target
.remove_point (type
, addr
, len
);
265 /* Unsupported (see target.h). */
270 win32_stopped_by_watchpoint (void)
272 if (the_low_target
.stopped_by_watchpoint
!= NULL
)
273 return the_low_target
.stopped_by_watchpoint ();
279 win32_stopped_data_address (void)
281 if (the_low_target
.stopped_data_address
!= NULL
)
282 return the_low_target
.stopped_data_address ();
288 /* Transfer memory from/to the debugged process. */
290 child_xfer_memory (CORE_ADDR memaddr
, char *our
, int len
,
291 int write
, struct target_ops
*target
)
296 uintptr_t addr
= (uintptr_t) memaddr
;
300 success
= WriteProcessMemory (current_process_handle
, (LPVOID
) addr
,
301 (LPCVOID
) our
, len
, &done
);
303 lasterror
= GetLastError ();
304 FlushInstructionCache (current_process_handle
, (LPCVOID
) addr
, len
);
308 success
= ReadProcessMemory (current_process_handle
, (LPCVOID
) addr
,
309 (LPVOID
) our
, len
, &done
);
311 lasterror
= GetLastError ();
313 if (!success
&& lasterror
== ERROR_PARTIAL_COPY
&& done
> 0)
316 return success
? done
: -1;
319 /* Clear out any old thread list and reinitialize it to a pristine
322 child_init_thread_list (void)
324 for_each_inferior (&all_threads
, delete_thread_info
);
327 /* Zero during the child initialization phase, and nonzero otherwise. */
329 static int child_initialization_done
= 0;
332 do_initial_child_stuff (HANDLE proch
, DWORD pid
, int attached
)
334 struct process_info
*proc
;
336 last_sig
= GDB_SIGNAL_0
;
338 current_process_handle
= proch
;
339 current_process_id
= pid
;
342 soft_interrupt_requested
= 0;
343 faked_breakpoint
= 0;
345 memset (¤t_event
, 0, sizeof (current_event
));
347 proc
= add_process (pid
, attached
);
348 proc
->tdesc
= win32_tdesc
;
349 child_init_thread_list ();
350 child_initialization_done
= 0;
352 if (the_low_target
.initial_stuff
!= NULL
)
353 (*the_low_target
.initial_stuff
) ();
355 cached_status
.kind
= TARGET_WAITKIND_IGNORE
;
357 /* Flush all currently pending debug events (thread and dll list) up
358 to the initial breakpoint. */
361 struct target_waitstatus status
;
363 win32_wait (minus_one_ptid
, &status
, 0);
365 /* Note win32_wait doesn't return thread events. */
366 if (status
.kind
!= TARGET_WAITKIND_LOADED
)
368 cached_status
= status
;
373 struct thread_resume resume
;
375 resume
.thread
= minus_one_ptid
;
376 resume
.kind
= resume_continue
;
379 win32_resume (&resume
, 1);
384 /* Now that the inferior has been started and all DLLs have been mapped,
385 we can iterate over all DLLs and load them in.
387 We avoid doing it any earlier because, on certain versions of Windows,
388 LOAD_DLL_DEBUG_EVENTs are sometimes not complete. In particular,
389 we have seen on Windows 8.1 that the ntdll.dll load event does not
390 include the DLL name, preventing us from creating an associated SO.
391 A possible explanation is that ntdll.dll might be mapped before
392 the SO info gets created by the Windows system -- ntdll.dll is
393 the first DLL to be reported via LOAD_DLL_DEBUG_EVENT and other DLLs
394 do not seem to suffer from that problem.
396 Rather than try to work around this sort of issue, it is much
397 simpler to just ignore DLL load/unload events during the startup
398 phase, and then process them all in one batch now. */
399 win32_add_all_dlls ();
402 child_initialization_done
= 1;
405 /* Resume all artificially suspended threads if we are continuing
408 continue_one_thread (struct inferior_list_entry
*this_thread
, void *id_ptr
)
410 struct thread_info
*thread
= (struct thread_info
*) this_thread
;
411 int thread_id
= * (int *) id_ptr
;
412 win32_thread_info
*th
= inferior_target_data (thread
);
414 if ((thread_id
== -1 || thread_id
== th
->tid
)
417 if (th
->context
.ContextFlags
)
419 win32_set_thread_context (th
);
420 th
->context
.ContextFlags
= 0;
423 if (ResumeThread (th
->h
) == (DWORD
) -1)
425 DWORD err
= GetLastError ();
426 OUTMSG (("warning: ResumeThread failed in continue_one_thread, "
427 "(error %d): %s\n", (int) err
, strwinerror (err
)));
436 child_continue (DWORD continue_status
, int thread_id
)
438 /* The inferior will only continue after the ContinueDebugEvent
440 find_inferior (&all_threads
, continue_one_thread
, &thread_id
);
441 faked_breakpoint
= 0;
443 if (!ContinueDebugEvent (current_event
.dwProcessId
,
444 current_event
.dwThreadId
,
451 /* Fetch register(s) from the current thread context. */
453 child_fetch_inferior_registers (struct regcache
*regcache
, int r
)
456 win32_thread_info
*th
= thread_rec (current_inferior_ptid (), TRUE
);
457 if (r
== -1 || r
> NUM_REGS
)
458 child_fetch_inferior_registers (regcache
, NUM_REGS
);
460 for (regno
= 0; regno
< r
; regno
++)
461 (*the_low_target
.fetch_inferior_register
) (regcache
, th
, regno
);
464 /* Store a new register value into the current thread context. We don't
465 change the program's context until later, when we resume it. */
467 child_store_inferior_registers (struct regcache
*regcache
, int r
)
470 win32_thread_info
*th
= thread_rec (current_inferior_ptid (), TRUE
);
471 if (r
== -1 || r
== 0 || r
> NUM_REGS
)
472 child_store_inferior_registers (regcache
, NUM_REGS
);
474 for (regno
= 0; regno
< r
; regno
++)
475 (*the_low_target
.store_inferior_register
) (regcache
, th
, regno
);
478 /* Map the Windows error number in ERROR to a locale-dependent error
479 message string and return a pointer to it. Typically, the values
480 for ERROR come from GetLastError.
482 The string pointed to shall not be modified by the application,
483 but may be overwritten by a subsequent call to strwinerror
485 The strwinerror function does not change the current setting
489 strwinerror (DWORD error
)
491 static char buf
[1024];
493 DWORD lasterr
= GetLastError ();
494 DWORD chars
= FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM
495 | FORMAT_MESSAGE_ALLOCATE_BUFFER
,
498 0, /* Default language */
504 /* If there is an \r\n appended, zap it. */
506 && msgbuf
[chars
- 2] == '\r'
507 && msgbuf
[chars
- 1] == '\n')
513 if (chars
> ((COUNTOF (buf
)) - 1))
515 chars
= COUNTOF (buf
) - 1;
520 wcstombs (buf
, msgbuf
, chars
+ 1);
522 strncpy (buf
, msgbuf
, chars
+ 1);
527 sprintf (buf
, "unknown win32 error (%u)", (unsigned) error
);
529 SetLastError (lasterr
);
534 create_process (const char *program
, char *args
,
535 DWORD flags
, PROCESS_INFORMATION
*pi
)
540 wchar_t *p
, *wprogram
, *wargs
;
543 wprogram
= alloca ((strlen (program
) + 1) * sizeof (wchar_t));
544 mbstowcs (wprogram
, program
, strlen (program
) + 1);
546 for (p
= wprogram
; *p
; ++p
)
550 argslen
= strlen (args
);
551 wargs
= alloca ((argslen
+ 1) * sizeof (wchar_t));
552 mbstowcs (wargs
, args
, argslen
+ 1);
554 ret
= CreateProcessW (wprogram
, /* image name */
555 wargs
, /* command line */
556 NULL
, /* security, not supported */
557 NULL
, /* thread, not supported */
558 FALSE
, /* inherit handles, not supported */
559 flags
, /* start flags */
560 NULL
, /* environment, not supported */
561 NULL
, /* current directory, not supported */
562 NULL
, /* start info, not supported */
565 STARTUPINFOA si
= { sizeof (STARTUPINFOA
) };
567 ret
= CreateProcessA (program
, /* image name */
568 args
, /* command line */
571 TRUE
, /* inherit handles */
572 flags
, /* start flags */
573 NULL
, /* environment */
574 NULL
, /* current directory */
575 &si
, /* start info */
582 /* Start a new process.
583 PROGRAM is a path to the program to execute.
584 ARGS is a standard NULL-terminated array of arguments,
585 to be passed to the inferior as ``argv''.
586 Returns the new PID on success, -1 on failure. Registers the new
587 process with the process list. */
589 win32_create_inferior (char *program
, char **program_args
)
592 char real_path
[PATH_MAX
];
593 char *orig_path
, *new_path
, *path_ptr
;
600 PROCESS_INFORMATION pi
;
603 /* win32_wait needs to know we're not attaching. */
607 error ("No executable specified, specify executable to debug.\n");
609 flags
= DEBUG_PROCESS
| DEBUG_ONLY_THIS_PROCESS
;
613 path_ptr
= getenv ("PATH");
616 int size
= cygwin_conv_path_list (CCP_POSIX_TO_WIN_A
, path_ptr
, NULL
, 0);
617 orig_path
= alloca (strlen (path_ptr
) + 1);
618 new_path
= alloca (size
);
619 strcpy (orig_path
, path_ptr
);
620 cygwin_conv_path_list (CCP_POSIX_TO_WIN_A
, path_ptr
, new_path
, size
);
621 setenv ("PATH", new_path
, 1);
623 cygwin_conv_path (CCP_POSIX_TO_WIN_A
, program
, real_path
, PATH_MAX
);
628 for (argc
= 1; program_args
[argc
]; argc
++)
629 argslen
+= strlen (program_args
[argc
]) + 1;
630 args
= alloca (argslen
);
632 for (argc
= 1; program_args
[argc
]; argc
++)
634 /* FIXME: Can we do better about quoting? How does Cygwin
637 strcat (args
, program_args
[argc
]);
639 OUTMSG2 (("Command line is \"%s\"\n", args
));
641 #ifdef CREATE_NEW_PROCESS_GROUP
642 flags
|= CREATE_NEW_PROCESS_GROUP
;
645 ret
= create_process (program
, args
, flags
, &pi
);
646 err
= GetLastError ();
647 if (!ret
&& err
== ERROR_FILE_NOT_FOUND
)
649 char *exename
= alloca (strlen (program
) + 5);
650 strcat (strcpy (exename
, program
), ".exe");
651 ret
= create_process (exename
, args
, flags
, &pi
);
652 err
= GetLastError ();
657 setenv ("PATH", orig_path
, 1);
662 error ("Error creating process \"%s%s\", (error %d): %s\n",
663 program
, args
, (int) err
, strwinerror (err
));
667 OUTMSG2 (("Process created: %s\n", (char *) args
));
671 /* On Windows CE this handle can't be closed. The OS reuses
672 it in the debug events, while the 9x/NT versions of Windows
673 probably use a DuplicateHandle'd one. */
674 CloseHandle (pi
.hThread
);
677 do_initial_child_stuff (pi
.hProcess
, pi
.dwProcessId
, 0);
679 return current_process_id
;
682 /* Attach to a running process.
683 PID is the process ID to attach to, specified by the user
684 or a higher layer. */
686 win32_attach (unsigned long pid
)
689 winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit
= NULL
;
692 HMODULE dll
= GetModuleHandle (_T("COREDLL.DLL"));
694 HMODULE dll
= GetModuleHandle (_T("KERNEL32.DLL"));
696 DebugSetProcessKillOnExit
= GETPROCADDRESS (dll
, DebugSetProcessKillOnExit
);
698 h
= OpenProcess (PROCESS_ALL_ACCESS
, FALSE
, pid
);
701 if (DebugActiveProcess (pid
))
703 if (DebugSetProcessKillOnExit
!= NULL
)
704 DebugSetProcessKillOnExit (FALSE
);
706 /* win32_wait needs to know we're attaching. */
708 do_initial_child_stuff (h
, pid
, 1);
715 err
= GetLastError ();
716 error ("Attach to process failed (error %d): %s\n",
717 (int) err
, strwinerror (err
));
720 /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */
722 handle_output_debug_string (struct target_waitstatus
*ourstatus
)
724 #define READ_BUFFER_LEN 1024
726 char s
[READ_BUFFER_LEN
+ 1] = { 0 };
727 DWORD nbytes
= current_event
.u
.DebugString
.nDebugStringLength
;
732 if (nbytes
> READ_BUFFER_LEN
)
733 nbytes
= READ_BUFFER_LEN
;
735 addr
= (CORE_ADDR
) (size_t) current_event
.u
.DebugString
.lpDebugStringData
;
737 if (current_event
.u
.DebugString
.fUnicode
)
739 /* The event tells us how many bytes, not chars, even
741 WCHAR buffer
[(READ_BUFFER_LEN
+ 1) / sizeof (WCHAR
)] = { 0 };
742 if (read_inferior_memory (addr
, (unsigned char *) buffer
, nbytes
) != 0)
744 wcstombs (s
, buffer
, (nbytes
+ 1) / sizeof (WCHAR
));
748 if (read_inferior_memory (addr
, (unsigned char *) s
, nbytes
) != 0)
752 if (strncmp (s
, "cYg", 3) != 0)
762 #undef READ_BUFFER_LEN
766 win32_clear_inferiors (void)
768 if (current_process_handle
!= NULL
)
769 CloseHandle (current_process_handle
);
771 for_each_inferior (&all_threads
, delete_thread_info
);
775 /* Kill all inferiors. */
779 struct process_info
*process
;
781 if (current_process_handle
== NULL
)
784 TerminateProcess (current_process_handle
, 0);
787 if (!child_continue (DBG_CONTINUE
, -1))
789 if (!WaitForDebugEvent (¤t_event
, INFINITE
))
791 if (current_event
.dwDebugEventCode
== EXIT_PROCESS_DEBUG_EVENT
)
793 else if (current_event
.dwDebugEventCode
== OUTPUT_DEBUG_STRING_EVENT
)
795 struct target_waitstatus our_status
= { 0 };
796 handle_output_debug_string (&our_status
);
800 win32_clear_inferiors ();
802 process
= find_process_pid (pid
);
803 remove_process (process
);
807 /* Detach from inferior PID. */
809 win32_detach (int pid
)
811 struct process_info
*process
;
812 winapi_DebugActiveProcessStop DebugActiveProcessStop
= NULL
;
813 winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit
= NULL
;
815 HMODULE dll
= GetModuleHandle (_T("COREDLL.DLL"));
817 HMODULE dll
= GetModuleHandle (_T("KERNEL32.DLL"));
819 DebugActiveProcessStop
= GETPROCADDRESS (dll
, DebugActiveProcessStop
);
820 DebugSetProcessKillOnExit
= GETPROCADDRESS (dll
, DebugSetProcessKillOnExit
);
822 if (DebugSetProcessKillOnExit
== NULL
823 || DebugActiveProcessStop
== NULL
)
827 struct thread_resume resume
;
828 resume
.thread
= minus_one_ptid
;
829 resume
.kind
= resume_continue
;
831 win32_resume (&resume
, 1);
834 if (!DebugActiveProcessStop (current_process_id
))
837 DebugSetProcessKillOnExit (FALSE
);
838 process
= find_process_pid (pid
);
839 remove_process (process
);
841 win32_clear_inferiors ();
846 win32_mourn (struct process_info
*process
)
848 remove_process (process
);
851 /* Wait for inferiors to end. */
855 HANDLE h
= OpenProcess (PROCESS_ALL_ACCESS
, FALSE
, pid
);
858 WaitForSingleObject (h
, INFINITE
);
863 /* Return 1 iff the thread with thread ID TID is alive. */
865 win32_thread_alive (ptid_t ptid
)
869 /* Our thread list is reliable; don't bother to poll target
871 if (find_inferior_id (&all_threads
, ptid
) != NULL
)
878 /* Resume the inferior process. RESUME_INFO describes how we want
881 win32_resume (struct thread_resume
*resume_info
, size_t n
)
886 win32_thread_info
*th
;
887 DWORD continue_status
= DBG_CONTINUE
;
890 /* This handles the very limited set of resume packets that GDB can
891 currently produce. */
893 if (n
== 1 && ptid_equal (resume_info
[0].thread
, minus_one_ptid
))
898 /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make
899 the Windows resume code do the right thing for thread switching. */
900 tid
= current_event
.dwThreadId
;
902 if (!ptid_equal (resume_info
[0].thread
, minus_one_ptid
))
904 sig
= resume_info
[0].sig
;
905 step
= resume_info
[0].kind
== resume_step
;
913 if (sig
!= GDB_SIGNAL_0
)
915 if (current_event
.dwDebugEventCode
!= EXCEPTION_DEBUG_EVENT
)
917 OUTMSG (("Cannot continue with signal %d here.\n", sig
));
919 else if (sig
== last_sig
)
920 continue_status
= DBG_EXCEPTION_NOT_HANDLED
;
922 OUTMSG (("Can only continue with recieved signal %d.\n", last_sig
));
925 last_sig
= GDB_SIGNAL_0
;
927 /* Get context for the currently selected thread. */
928 ptid
= debug_event_ptid (¤t_event
);
929 th
= thread_rec (ptid
, FALSE
);
932 if (th
->context
.ContextFlags
)
934 /* Move register values from the inferior into the thread
935 context structure. */
936 regcache_invalidate ();
940 if (the_low_target
.single_step
!= NULL
)
941 (*the_low_target
.single_step
) (th
);
943 error ("Single stepping is not supported "
944 "in this configuration.\n");
947 win32_set_thread_context (th
);
948 th
->context
.ContextFlags
= 0;
952 /* Allow continuing with the same signal that interrupted us.
953 Otherwise complain. */
955 child_continue (continue_status
, tid
);
959 win32_add_one_solib (const char *name
, CORE_ADDR load_addr
)
961 char buf
[MAX_PATH
+ 1];
962 char buf2
[MAX_PATH
+ 1];
965 WIN32_FIND_DATA w32_fd
;
966 WCHAR wname
[MAX_PATH
+ 1];
967 mbstowcs (wname
, name
, MAX_PATH
);
968 HANDLE h
= FindFirstFile (wname
, &w32_fd
);
970 WIN32_FIND_DATAA w32_fd
;
971 HANDLE h
= FindFirstFileA (name
, &w32_fd
);
974 /* The symbols in a dll are offset by 0x1000, which is the
975 offset from 0 of the first byte in an image - because
976 of the file header and the section alignment. */
979 if (h
== INVALID_HANDLE_VALUE
)
987 char cwd
[MAX_PATH
+ 1];
989 if (GetCurrentDirectoryA (MAX_PATH
+ 1, cwd
))
991 p
= strrchr (buf
, '\\');
994 SetCurrentDirectoryA (buf
);
995 GetFullPathNameA (w32_fd
.cFileName
, MAX_PATH
, buf
, &p
);
996 SetCurrentDirectoryA (cwd
);
1003 if (strcasecmp (buf
, "ntdll.dll") == 0)
1005 GetSystemDirectoryA (buf
, sizeof (buf
));
1006 strcat (buf
, "\\ntdll.dll");
1011 cygwin_conv_path (CCP_WIN_A_TO_POSIX
, buf
, buf2
, sizeof (buf2
));
1016 loaded_dll (buf2
, load_addr
);
1020 get_image_name (HANDLE h
, void *address
, int unicode
)
1022 static char buf
[(2 * MAX_PATH
) + 1];
1023 DWORD size
= unicode
? sizeof (WCHAR
) : sizeof (char);
1029 /* Attempt to read the name of the dll that was detected.
1030 This is documented to work only when actively debugging
1031 a program. It will not work for attached processes. */
1032 if (address
== NULL
)
1036 /* Windows CE reports the address of the image name,
1037 instead of an address of a pointer into the image name. */
1038 address_ptr
= address
;
1040 /* See if we could read the address of a string, and that the
1041 address isn't null. */
1042 if (!ReadProcessMemory (h
, address
, &address_ptr
,
1043 sizeof (address_ptr
), &done
)
1044 || done
!= sizeof (address_ptr
)
1049 /* Find the length of the string */
1050 while (ReadProcessMemory (h
, address_ptr
+ len
++ * size
, &b
, size
, &done
)
1051 && (b
[0] != 0 || b
[size
- 1] != 0) && done
== size
)
1055 ReadProcessMemory (h
, address_ptr
, buf
, len
, &done
);
1058 WCHAR
*unicode_address
= (WCHAR
*) alloca (len
* sizeof (WCHAR
));
1059 ReadProcessMemory (h
, address_ptr
, unicode_address
, len
* sizeof (WCHAR
),
1062 WideCharToMultiByte (CP_ACP
, 0, unicode_address
, len
, buf
, len
, 0, 0);
1068 typedef BOOL (WINAPI
*winapi_EnumProcessModules
) (HANDLE
, HMODULE
*,
1070 typedef BOOL (WINAPI
*winapi_GetModuleInformation
) (HANDLE
, HMODULE
,
1071 LPMODULEINFO
, DWORD
);
1072 typedef DWORD (WINAPI
*winapi_GetModuleFileNameExA
) (HANDLE
, HMODULE
,
1075 static winapi_EnumProcessModules win32_EnumProcessModules
;
1076 static winapi_GetModuleInformation win32_GetModuleInformation
;
1077 static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA
;
1082 static int psapi_loaded
= 0;
1083 static HMODULE dll
= NULL
;
1088 dll
= LoadLibrary (TEXT("psapi.dll"));
1091 win32_EnumProcessModules
=
1092 GETPROCADDRESS (dll
, EnumProcessModules
);
1093 win32_GetModuleInformation
=
1094 GETPROCADDRESS (dll
, GetModuleInformation
);
1095 win32_GetModuleFileNameExA
=
1096 GETPROCADDRESS (dll
, GetModuleFileNameExA
);
1099 return (win32_EnumProcessModules
!= NULL
1100 && win32_GetModuleInformation
!= NULL
1101 && win32_GetModuleFileNameExA
!= NULL
);
1106 /* Iterate over all DLLs currently mapped by our inferior, and
1107 add them to our list of solibs. */
1110 win32_add_all_dlls (void)
1114 HMODULE
*DllHandle
= dh_buf
;
1122 ok
= (*win32_EnumProcessModules
) (current_process_handle
,
1127 if (!ok
|| !cbNeeded
)
1130 DllHandle
= (HMODULE
*) alloca (cbNeeded
);
1134 ok
= (*win32_EnumProcessModules
) (current_process_handle
,
1141 for (i
= 1; i
< ((size_t) cbNeeded
/ sizeof (HMODULE
)); i
++)
1144 char dll_name
[MAX_PATH
];
1146 if (!(*win32_GetModuleInformation
) (current_process_handle
,
1151 if ((*win32_GetModuleFileNameExA
) (current_process_handle
,
1156 win32_add_one_solib (dll_name
, (CORE_ADDR
) (uintptr_t) mi
.lpBaseOfDll
);
1161 typedef HANDLE (WINAPI
*winapi_CreateToolhelp32Snapshot
) (DWORD
, DWORD
);
1162 typedef BOOL (WINAPI
*winapi_Module32First
) (HANDLE
, LPMODULEENTRY32
);
1163 typedef BOOL (WINAPI
*winapi_Module32Next
) (HANDLE
, LPMODULEENTRY32
);
1165 /* Handle a DLL load event.
1167 This function assumes that this event did not occur during inferior
1168 initialization, where their event info may be incomplete (see
1169 do_initial_child_stuff and win32_add_all_dlls for more info on
1170 how we handle DLL loading during that phase). */
1173 handle_load_dll (void)
1175 LOAD_DLL_DEBUG_INFO
*event
= ¤t_event
.u
.LoadDll
;
1178 dll_name
= get_image_name (current_process_handle
,
1179 event
->lpImageName
, event
->fUnicode
);
1183 win32_add_one_solib (dll_name
, (CORE_ADDR
) (uintptr_t) event
->lpBaseOfDll
);
1186 /* Handle a DLL unload event.
1188 This function assumes that this event did not occur during inferior
1189 initialization, where their event info may be incomplete (see
1190 do_initial_child_stuff and win32_add_one_solib for more info
1191 on how we handle DLL loading during that phase). */
1194 handle_unload_dll (void)
1196 CORE_ADDR load_addr
=
1197 (CORE_ADDR
) (uintptr_t) current_event
.u
.UnloadDll
.lpBaseOfDll
;
1199 /* The symbols in a dll are offset by 0x1000, which is the
1200 offset from 0 of the first byte in an image - because
1201 of the file header and the section alignment. */
1202 load_addr
+= 0x1000;
1203 unloaded_dll (NULL
, load_addr
);
1207 handle_exception (struct target_waitstatus
*ourstatus
)
1209 DWORD code
= current_event
.u
.Exception
.ExceptionRecord
.ExceptionCode
;
1211 ourstatus
->kind
= TARGET_WAITKIND_STOPPED
;
1215 case EXCEPTION_ACCESS_VIOLATION
:
1216 OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION"));
1217 ourstatus
->value
.sig
= GDB_SIGNAL_SEGV
;
1219 case STATUS_STACK_OVERFLOW
:
1220 OUTMSG2 (("STATUS_STACK_OVERFLOW"));
1221 ourstatus
->value
.sig
= GDB_SIGNAL_SEGV
;
1223 case STATUS_FLOAT_DENORMAL_OPERAND
:
1224 OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND"));
1225 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1227 case EXCEPTION_ARRAY_BOUNDS_EXCEEDED
:
1228 OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"));
1229 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1231 case STATUS_FLOAT_INEXACT_RESULT
:
1232 OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT"));
1233 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1235 case STATUS_FLOAT_INVALID_OPERATION
:
1236 OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION"));
1237 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1239 case STATUS_FLOAT_OVERFLOW
:
1240 OUTMSG2 (("STATUS_FLOAT_OVERFLOW"));
1241 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1243 case STATUS_FLOAT_STACK_CHECK
:
1244 OUTMSG2 (("STATUS_FLOAT_STACK_CHECK"));
1245 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1247 case STATUS_FLOAT_UNDERFLOW
:
1248 OUTMSG2 (("STATUS_FLOAT_UNDERFLOW"));
1249 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1251 case STATUS_FLOAT_DIVIDE_BY_ZERO
:
1252 OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO"));
1253 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1255 case STATUS_INTEGER_DIVIDE_BY_ZERO
:
1256 OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO"));
1257 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1259 case STATUS_INTEGER_OVERFLOW
:
1260 OUTMSG2 (("STATUS_INTEGER_OVERFLOW"));
1261 ourstatus
->value
.sig
= GDB_SIGNAL_FPE
;
1263 case EXCEPTION_BREAKPOINT
:
1264 OUTMSG2 (("EXCEPTION_BREAKPOINT"));
1265 ourstatus
->value
.sig
= GDB_SIGNAL_TRAP
;
1267 /* Remove the initial breakpoint. */
1268 check_breakpoints ((CORE_ADDR
) (long) current_event
1269 .u
.Exception
.ExceptionRecord
.ExceptionAddress
);
1273 OUTMSG2 (("DBG_CONTROL_C"));
1274 ourstatus
->value
.sig
= GDB_SIGNAL_INT
;
1276 case DBG_CONTROL_BREAK
:
1277 OUTMSG2 (("DBG_CONTROL_BREAK"));
1278 ourstatus
->value
.sig
= GDB_SIGNAL_INT
;
1280 case EXCEPTION_SINGLE_STEP
:
1281 OUTMSG2 (("EXCEPTION_SINGLE_STEP"));
1282 ourstatus
->value
.sig
= GDB_SIGNAL_TRAP
;
1284 case EXCEPTION_ILLEGAL_INSTRUCTION
:
1285 OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION"));
1286 ourstatus
->value
.sig
= GDB_SIGNAL_ILL
;
1288 case EXCEPTION_PRIV_INSTRUCTION
:
1289 OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION"));
1290 ourstatus
->value
.sig
= GDB_SIGNAL_ILL
;
1292 case EXCEPTION_NONCONTINUABLE_EXCEPTION
:
1293 OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION"));
1294 ourstatus
->value
.sig
= GDB_SIGNAL_ILL
;
1297 if (current_event
.u
.Exception
.dwFirstChance
)
1299 ourstatus
->kind
= TARGET_WAITKIND_SPURIOUS
;
1302 OUTMSG2 (("gdbserver: unknown target exception 0x%08x at 0x%s",
1303 (unsigned) current_event
.u
.Exception
.ExceptionRecord
.ExceptionCode
,
1304 phex_nz ((uintptr_t) current_event
.u
.Exception
.ExceptionRecord
.
1305 ExceptionAddress
, sizeof (uintptr_t))));
1306 ourstatus
->value
.sig
= GDB_SIGNAL_UNKNOWN
;
1310 last_sig
= ourstatus
->value
.sig
;
1315 suspend_one_thread (struct inferior_list_entry
*entry
)
1317 struct thread_info
*thread
= (struct thread_info
*) entry
;
1318 win32_thread_info
*th
= inferior_target_data (thread
);
1322 if (SuspendThread (th
->h
) == (DWORD
) -1)
1324 DWORD err
= GetLastError ();
1325 OUTMSG (("warning: SuspendThread failed in suspend_one_thread, "
1326 "(error %d): %s\n", (int) err
, strwinerror (err
)));
1334 fake_breakpoint_event (void)
1336 OUTMSG2(("fake_breakpoint_event\n"));
1338 faked_breakpoint
= 1;
1340 memset (¤t_event
, 0, sizeof (current_event
));
1341 current_event
.dwThreadId
= main_thread_id
;
1342 current_event
.dwDebugEventCode
= EXCEPTION_DEBUG_EVENT
;
1343 current_event
.u
.Exception
.ExceptionRecord
.ExceptionCode
1344 = EXCEPTION_BREAKPOINT
;
1346 for_each_inferior (&all_threads
, suspend_one_thread
);
1351 auto_delete_breakpoint (CORE_ADDR stop_pc
)
1357 /* Get the next event from the child. */
1360 get_child_debug_event (struct target_waitstatus
*ourstatus
)
1364 last_sig
= GDB_SIGNAL_0
;
1365 ourstatus
->kind
= TARGET_WAITKIND_SPURIOUS
;
1367 /* Check if GDB sent us an interrupt request. */
1368 check_remote_input_interrupt_request ();
1370 if (soft_interrupt_requested
)
1372 soft_interrupt_requested
= 0;
1373 fake_breakpoint_event ();
1382 /* WinCE doesn't set an initial breakpoint automatically. To
1383 stop the inferior, we flush all currently pending debug
1384 events -- the thread list and the dll list are always
1385 reported immediatelly without delay, then, we suspend all
1386 threads and pretend we saw a trap at the current PC of the
1389 Contrary to desktop Windows, Windows CE *does* report the dll
1390 names on LOAD_DLL_DEBUG_EVENTs resulting from a
1391 DebugActiveProcess call. This limits the way we can detect
1392 if all the dlls have already been reported. If we get a real
1393 debug event before leaving attaching, the worst that will
1394 happen is the user will see a spurious breakpoint. */
1396 current_event
.dwDebugEventCode
= 0;
1397 if (!WaitForDebugEvent (¤t_event
, 0))
1399 OUTMSG2(("no attach events left\n"));
1400 fake_breakpoint_event ();
1404 OUTMSG2(("got attach event\n"));
1409 /* Keep the wait time low enough for confortable remote
1410 interruption, but high enough so gdbserver doesn't become a
1412 if (!WaitForDebugEvent (¤t_event
, 250))
1414 DWORD e
= GetLastError();
1416 if (e
== ERROR_PIPE_NOT_CONNECTED
)
1418 /* This will happen if the loader fails to succesfully
1419 load the application, e.g., if the main executable
1420 tries to pull in a non-existing export from a
1422 ourstatus
->kind
= TARGET_WAITKIND_EXITED
;
1423 ourstatus
->value
.integer
= 1;
1433 switch (current_event
.dwDebugEventCode
)
1435 case CREATE_THREAD_DEBUG_EVENT
:
1436 OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT "
1437 "for pid=%u tid=%x)\n",
1438 (unsigned) current_event
.dwProcessId
,
1439 (unsigned) current_event
.dwThreadId
));
1441 /* Record the existence of this thread. */
1442 child_add_thread (current_event
.dwProcessId
,
1443 current_event
.dwThreadId
,
1444 current_event
.u
.CreateThread
.hThread
,
1445 current_event
.u
.CreateThread
.lpThreadLocalBase
);
1448 case EXIT_THREAD_DEBUG_EVENT
:
1449 OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT "
1450 "for pid=%u tid=%x\n",
1451 (unsigned) current_event
.dwProcessId
,
1452 (unsigned) current_event
.dwThreadId
));
1453 child_delete_thread (current_event
.dwProcessId
,
1454 current_event
.dwThreadId
);
1456 current_inferior
= (struct thread_info
*) all_threads
.head
;
1459 case CREATE_PROCESS_DEBUG_EVENT
:
1460 OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT "
1461 "for pid=%u tid=%x\n",
1462 (unsigned) current_event
.dwProcessId
,
1463 (unsigned) current_event
.dwThreadId
));
1464 CloseHandle (current_event
.u
.CreateProcessInfo
.hFile
);
1466 current_process_handle
= current_event
.u
.CreateProcessInfo
.hProcess
;
1467 main_thread_id
= current_event
.dwThreadId
;
1469 ourstatus
->kind
= TARGET_WAITKIND_EXECD
;
1470 ourstatus
->value
.execd_pathname
= "Main executable";
1472 /* Add the main thread. */
1473 child_add_thread (current_event
.dwProcessId
,
1475 current_event
.u
.CreateProcessInfo
.hThread
,
1476 current_event
.u
.CreateProcessInfo
.lpThreadLocalBase
);
1478 ourstatus
->value
.related_pid
= debug_event_ptid (¤t_event
);
1482 /* Windows CE doesn't set the initial breakpoint
1483 automatically like the desktop versions of Windows do.
1484 We add it explicitly here. It will be removed as soon as
1486 set_breakpoint_at ((CORE_ADDR
) (long) current_event
.u
1487 .CreateProcessInfo
.lpStartAddress
,
1488 auto_delete_breakpoint
);
1493 case EXIT_PROCESS_DEBUG_EVENT
:
1494 OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT "
1495 "for pid=%u tid=%x\n",
1496 (unsigned) current_event
.dwProcessId
,
1497 (unsigned) current_event
.dwThreadId
));
1498 ourstatus
->kind
= TARGET_WAITKIND_EXITED
;
1499 ourstatus
->value
.integer
= current_event
.u
.ExitProcess
.dwExitCode
;
1500 child_continue (DBG_CONTINUE
, -1);
1501 CloseHandle (current_process_handle
);
1502 current_process_handle
= NULL
;
1505 case LOAD_DLL_DEBUG_EVENT
:
1506 OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT "
1507 "for pid=%u tid=%x\n",
1508 (unsigned) current_event
.dwProcessId
,
1509 (unsigned) current_event
.dwThreadId
));
1510 CloseHandle (current_event
.u
.LoadDll
.hFile
);
1511 if (! child_initialization_done
)
1515 ourstatus
->kind
= TARGET_WAITKIND_LOADED
;
1516 ourstatus
->value
.sig
= GDB_SIGNAL_TRAP
;
1519 case UNLOAD_DLL_DEBUG_EVENT
:
1520 OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT "
1521 "for pid=%u tid=%x\n",
1522 (unsigned) current_event
.dwProcessId
,
1523 (unsigned) current_event
.dwThreadId
));
1524 if (! child_initialization_done
)
1526 handle_unload_dll ();
1527 ourstatus
->kind
= TARGET_WAITKIND_LOADED
;
1528 ourstatus
->value
.sig
= GDB_SIGNAL_TRAP
;
1531 case EXCEPTION_DEBUG_EVENT
:
1532 OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT "
1533 "for pid=%u tid=%x\n",
1534 (unsigned) current_event
.dwProcessId
,
1535 (unsigned) current_event
.dwThreadId
));
1536 handle_exception (ourstatus
);
1539 case OUTPUT_DEBUG_STRING_EVENT
:
1540 /* A message from the kernel (or Cygwin). */
1541 OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT "
1542 "for pid=%u tid=%x\n",
1543 (unsigned) current_event
.dwProcessId
,
1544 (unsigned) current_event
.dwThreadId
));
1545 handle_output_debug_string (ourstatus
);
1549 OUTMSG2 (("gdbserver: kernel event unknown "
1550 "for pid=%u tid=%x code=%x\n",
1551 (unsigned) current_event
.dwProcessId
,
1552 (unsigned) current_event
.dwThreadId
,
1553 (unsigned) current_event
.dwDebugEventCode
));
1557 ptid
= debug_event_ptid (¤t_event
);
1559 (struct thread_info
*) find_inferior_id (&all_threads
, ptid
);
1563 /* Wait for the inferior process to change state.
1564 STATUS will be filled in with a response code to send to GDB.
1565 Returns the signal which caused the process to stop. */
1567 win32_wait (ptid_t ptid
, struct target_waitstatus
*ourstatus
, int options
)
1569 struct regcache
*regcache
;
1571 if (cached_status
.kind
!= TARGET_WAITKIND_IGNORE
)
1573 /* The core always does a wait after creating the inferior, and
1574 do_initial_child_stuff already ran the inferior to the
1575 initial breakpoint (or an exit, if creating the process
1576 fails). Report it now. */
1577 *ourstatus
= cached_status
;
1578 cached_status
.kind
= TARGET_WAITKIND_IGNORE
;
1579 return debug_event_ptid (¤t_event
);
1584 if (!get_child_debug_event (ourstatus
))
1587 switch (ourstatus
->kind
)
1589 case TARGET_WAITKIND_EXITED
:
1590 OUTMSG2 (("Child exited with retcode = %x\n",
1591 ourstatus
->value
.integer
));
1592 win32_clear_inferiors ();
1593 return pid_to_ptid (current_event
.dwProcessId
);
1594 case TARGET_WAITKIND_STOPPED
:
1595 case TARGET_WAITKIND_LOADED
:
1596 OUTMSG2 (("Child Stopped with signal = %d \n",
1597 ourstatus
->value
.sig
));
1599 regcache
= get_thread_regcache (current_inferior
, 1);
1600 child_fetch_inferior_registers (regcache
, -1);
1601 return debug_event_ptid (¤t_event
);
1603 OUTMSG (("Ignoring unknown internal event, %d\n", ourstatus
->kind
));
1605 case TARGET_WAITKIND_SPURIOUS
:
1606 case TARGET_WAITKIND_EXECD
:
1607 /* do nothing, just continue */
1608 child_continue (DBG_CONTINUE
, -1);
1614 /* Fetch registers from the inferior process.
1615 If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
1617 win32_fetch_inferior_registers (struct regcache
*regcache
, int regno
)
1619 child_fetch_inferior_registers (regcache
, regno
);
1622 /* Store registers to the inferior process.
1623 If REGNO is -1, store all registers; otherwise, store at least REGNO. */
1625 win32_store_inferior_registers (struct regcache
*regcache
, int regno
)
1627 child_store_inferior_registers (regcache
, regno
);
1630 /* Read memory from the inferior process. This should generally be
1631 called through read_inferior_memory, which handles breakpoint shadowing.
1632 Read LEN bytes at MEMADDR into a buffer at MYADDR. */
1634 win32_read_inferior_memory (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
)
1636 return child_xfer_memory (memaddr
, (char *) myaddr
, len
, 0, 0) != len
;
1639 /* Write memory to the inferior process. This should generally be
1640 called through write_inferior_memory, which handles breakpoint shadowing.
1641 Write LEN bytes from the buffer at MYADDR to MEMADDR.
1642 Returns 0 on success and errno on failure. */
1644 win32_write_inferior_memory (CORE_ADDR memaddr
, const unsigned char *myaddr
,
1647 return child_xfer_memory (memaddr
, (char *) myaddr
, len
, 1, 0) != len
;
1650 /* Send an interrupt request to the inferior process. */
1652 win32_request_interrupt (void)
1654 winapi_DebugBreakProcess DebugBreakProcess
;
1655 winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent
;
1658 HMODULE dll
= GetModuleHandle (_T("COREDLL.DLL"));
1660 HMODULE dll
= GetModuleHandle (_T("KERNEL32.DLL"));
1663 GenerateConsoleCtrlEvent
= GETPROCADDRESS (dll
, GenerateConsoleCtrlEvent
);
1665 if (GenerateConsoleCtrlEvent
!= NULL
1666 && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT
, current_process_id
))
1669 /* GenerateConsoleCtrlEvent can fail if process id being debugged is
1670 not a process group id.
1671 Fallback to XP/Vista 'DebugBreakProcess', which generates a
1672 breakpoint exception in the interior process. */
1674 DebugBreakProcess
= GETPROCADDRESS (dll
, DebugBreakProcess
);
1676 if (DebugBreakProcess
!= NULL
1677 && DebugBreakProcess (current_process_handle
))
1680 /* Last resort, suspend all threads manually. */
1681 soft_interrupt_requested
= 1;
1686 win32_error_to_fileio_error (DWORD err
)
1690 case ERROR_BAD_PATHNAME
:
1691 case ERROR_FILE_NOT_FOUND
:
1692 case ERROR_INVALID_NAME
:
1693 case ERROR_PATH_NOT_FOUND
:
1694 return FILEIO_ENOENT
;
1696 case ERROR_IO_DEVICE
:
1697 case ERROR_OPEN_FAILED
:
1699 case ERROR_INVALID_HANDLE
:
1700 return FILEIO_EBADF
;
1701 case ERROR_ACCESS_DENIED
:
1702 case ERROR_SHARING_VIOLATION
:
1703 return FILEIO_EACCES
;
1704 case ERROR_NOACCESS
:
1705 return FILEIO_EFAULT
;
1707 return FILEIO_EBUSY
;
1708 case ERROR_ALREADY_EXISTS
:
1709 case ERROR_FILE_EXISTS
:
1710 return FILEIO_EEXIST
;
1711 case ERROR_BAD_DEVICE
:
1712 return FILEIO_ENODEV
;
1713 case ERROR_DIRECTORY
:
1714 return FILEIO_ENOTDIR
;
1715 case ERROR_FILENAME_EXCED_RANGE
:
1716 case ERROR_INVALID_DATA
:
1717 case ERROR_INVALID_PARAMETER
:
1718 case ERROR_NEGATIVE_SEEK
:
1719 return FILEIO_EINVAL
;
1720 case ERROR_TOO_MANY_OPEN_FILES
:
1721 return FILEIO_EMFILE
;
1722 case ERROR_HANDLE_DISK_FULL
:
1723 case ERROR_DISK_FULL
:
1724 return FILEIO_ENOSPC
;
1725 case ERROR_WRITE_PROTECT
:
1726 return FILEIO_EROFS
;
1727 case ERROR_NOT_SUPPORTED
:
1728 return FILEIO_ENOSYS
;
1731 return FILEIO_EUNKNOWN
;
1735 wince_hostio_last_error (char *buf
)
1737 DWORD winerr
= GetLastError ();
1738 int fileio_err
= win32_error_to_fileio_error (winerr
);
1739 sprintf (buf
, "F-1,%x", fileio_err
);
1743 /* Write Windows OS Thread Information Block address. */
1746 win32_get_tib_address (ptid_t ptid
, CORE_ADDR
*addr
)
1748 win32_thread_info
*th
;
1749 th
= thread_rec (ptid
, 0);
1753 *addr
= th
->thread_local_base
;
1757 static struct target_ops win32_target_ops
= {
1758 win32_create_inferior
,
1767 win32_fetch_inferior_registers
,
1768 win32_store_inferior_registers
,
1769 NULL
, /* prepare_to_access_memory */
1770 NULL
, /* done_accessing_memory */
1771 win32_read_inferior_memory
,
1772 win32_write_inferior_memory
,
1773 NULL
, /* lookup_symbols */
1774 win32_request_interrupt
,
1775 NULL
, /* read_auxv */
1778 win32_stopped_by_watchpoint
,
1779 win32_stopped_data_address
,
1780 NULL
, /* read_offsets */
1781 NULL
, /* get_tls_address */
1782 NULL
, /* qxfer_spu */
1784 wince_hostio_last_error
,
1786 hostio_last_error_from_errno
,
1788 NULL
, /* qxfer_osdata */
1789 NULL
, /* qxfer_siginfo */
1790 NULL
, /* supports_non_stop */
1792 NULL
, /* start_non_stop */
1793 NULL
, /* supports_multi_process */
1794 NULL
, /* handle_monitor_command */
1795 NULL
, /* core_of_thread */
1796 NULL
, /* read_loadmap */
1797 NULL
, /* process_qsupported */
1798 NULL
, /* supports_tracepoints */
1800 NULL
, /* write_pc */
1801 NULL
, /* thread_stopped */
1802 win32_get_tib_address
1805 /* Initialize the Win32 backend. */
1807 initialize_low (void)
1809 set_target_ops (&win32_target_ops
);
1810 if (the_low_target
.breakpoint
!= NULL
)
1811 set_breakpoint_data (the_low_target
.breakpoint
,
1812 the_low_target
.breakpoint_len
);
1813 the_low_target
.arch_setup ();