1 /* Low level interface to Windows debugging, for gdbserver.
2 Copyright (C) 2006, 2007, 2008, 2009 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"
33 #include <sys/param.h>
38 #include <sys/cygwin.h>
41 #define OUTMSG(X) do { printf X; fflush (stderr); } while (0)
54 #define _T(x) TEXT (x)
58 #define COUNTOF(STR) (sizeof (STR) / sizeof ((STR)[0]))
62 # define GETPROCADDRESS(DLL, PROC) \
63 ((winapi_ ## PROC) GetProcAddress (DLL, TEXT (#PROC)))
65 # define GETPROCADDRESS(DLL, PROC) \
66 ((winapi_ ## PROC) GetProcAddress (DLL, #PROC))
69 int using_threads
= 1;
72 static int attaching
= 0;
73 static HANDLE current_process_handle
= NULL
;
74 static DWORD current_process_id
= 0;
75 static DWORD main_thread_id
= 0;
76 static enum target_signal last_sig
= TARGET_SIGNAL_0
;
78 /* The current debug event from WaitForDebugEvent. */
79 static DEBUG_EVENT current_event
;
81 /* Non zero if an interrupt request is to be satisfied by suspending
83 static int soft_interrupt_requested
= 0;
85 /* Non zero if the inferior is stopped in a simulated breakpoint done
86 by suspending all the threads. */
87 static int faked_breakpoint
= 0;
89 #define NUM_REGS (the_low_target.num_regs)
91 typedef BOOL
WINAPI (*winapi_DebugActiveProcessStop
) (DWORD dwProcessId
);
92 typedef BOOL
WINAPI (*winapi_DebugSetProcessKillOnExit
) (BOOL KillOnExit
);
93 typedef BOOL
WINAPI (*winapi_DebugBreakProcess
) (HANDLE
);
94 typedef BOOL
WINAPI (*winapi_GenerateConsoleCtrlEvent
) (DWORD
, DWORD
);
96 static void win32_resume (struct thread_resume
*resume_info
, size_t n
);
98 /* Get the thread ID from the current selected inferior (the current
101 current_inferior_ptid (void)
103 return ((struct inferior_list_entry
*) current_inferior
)->id
;
106 /* The current debug event from WaitForDebugEvent. */
108 debug_event_ptid (DEBUG_EVENT
*event
)
110 return ptid_build (event
->dwProcessId
, event
->dwThreadId
, 0);
113 /* Get the thread context of the thread associated with TH. */
116 win32_get_thread_context (win32_thread_info
*th
)
118 memset (&th
->context
, 0, sizeof (CONTEXT
));
119 (*the_low_target
.get_thread_context
) (th
, ¤t_event
);
121 memcpy (&th
->base_context
, &th
->context
, sizeof (CONTEXT
));
125 /* Set the thread context of the thread associated with TH. */
128 win32_set_thread_context (win32_thread_info
*th
)
131 /* Calling SuspendThread on a thread that is running kernel code
132 will report that the suspending was successful, but in fact, that
133 will often not be true. In those cases, the context returned by
134 GetThreadContext will not be correct by the time the thread
135 stops, hence we can't set that context back into the thread when
136 resuming - it will most likelly crash the inferior.
137 Unfortunately, there is no way to know when the thread will
138 really stop. To work around it, we'll only write the context
139 back to the thread when either the user or GDB explicitly change
140 it between stopping and resuming. */
141 if (memcmp (&th
->context
, &th
->base_context
, sizeof (CONTEXT
)) != 0)
143 (*the_low_target
.set_thread_context
) (th
, ¤t_event
);
146 /* Find a thread record given a thread id. If GET_CONTEXT is set then
147 also retrieve the context for this thread. */
148 static win32_thread_info
*
149 thread_rec (ptid_t ptid
, int get_context
)
151 struct thread_info
*thread
;
152 win32_thread_info
*th
;
154 thread
= (struct thread_info
*) find_inferior_id (&all_threads
, ptid
);
158 th
= inferior_target_data (thread
);
159 if (get_context
&& th
->context
.ContextFlags
== 0)
163 if (SuspendThread (th
->h
) == (DWORD
) -1)
165 DWORD err
= GetLastError ();
166 OUTMSG (("warning: SuspendThread failed in thread_rec, "
167 "(error %d): %s\n", (int) err
, strwinerror (err
)));
173 win32_get_thread_context (th
);
179 /* Add a thread to the thread list. */
180 static win32_thread_info
*
181 child_add_thread (DWORD pid
, DWORD tid
, HANDLE h
)
183 win32_thread_info
*th
;
184 ptid_t ptid
= ptid_build (pid
, tid
, 0);
186 if ((th
= thread_rec (ptid
, FALSE
)))
189 th
= xcalloc (1, sizeof (*th
));
193 add_thread (ptid
, th
);
194 set_inferior_regcache_data ((struct thread_info
*)
195 find_inferior_id (&all_threads
, ptid
),
196 new_register_cache ());
198 if (the_low_target
.thread_added
!= NULL
)
199 (*the_low_target
.thread_added
) (th
);
204 /* Delete a thread from the list of threads. */
206 delete_thread_info (struct inferior_list_entry
*thread
)
208 win32_thread_info
*th
= inferior_target_data ((struct thread_info
*) thread
);
210 remove_thread ((struct thread_info
*) thread
);
215 /* Delete a thread from the list of threads. */
217 child_delete_thread (DWORD pid
, DWORD tid
)
219 struct inferior_list_entry
*thread
;
222 /* If the last thread is exiting, just return. */
223 if (all_threads
.head
== all_threads
.tail
)
226 ptid
= ptid_build (pid
, tid
, 0);
227 thread
= find_inferior_id (&all_threads
, ptid
);
231 delete_thread_info (thread
);
234 /* These watchpoint related wrapper functions simply pass on the function call
235 if the low target has registered a corresponding function. */
238 win32_insert_point (char type
, CORE_ADDR addr
, int len
)
240 if (the_low_target
.insert_point
!= NULL
)
241 return the_low_target
.insert_point (type
, addr
, len
);
243 /* Unsupported (see target.h). */
248 win32_remove_point (char type
, CORE_ADDR addr
, int len
)
250 if (the_low_target
.remove_point
!= NULL
)
251 return the_low_target
.remove_point (type
, addr
, len
);
253 /* Unsupported (see target.h). */
258 win32_stopped_by_watchpoint (void)
260 if (the_low_target
.stopped_by_watchpoint
!= NULL
)
261 return the_low_target
.stopped_by_watchpoint ();
267 win32_stopped_data_address (void)
269 if (the_low_target
.stopped_data_address
!= NULL
)
270 return the_low_target
.stopped_data_address ();
276 /* Transfer memory from/to the debugged process. */
278 child_xfer_memory (CORE_ADDR memaddr
, char *our
, int len
,
279 int write
, struct target_ops
*target
)
282 long addr
= (long) memaddr
;
286 WriteProcessMemory (current_process_handle
, (LPVOID
) addr
,
287 (LPCVOID
) our
, len
, &done
);
288 FlushInstructionCache (current_process_handle
, (LPCVOID
) addr
, len
);
292 ReadProcessMemory (current_process_handle
, (LPCVOID
) addr
, (LPVOID
) our
,
298 /* Clear out any old thread list and reinitialize it to a pristine
301 child_init_thread_list (void)
303 for_each_inferior (&all_threads
, delete_thread_info
);
307 do_initial_child_stuff (HANDLE proch
, DWORD pid
, int attached
)
309 last_sig
= TARGET_SIGNAL_0
;
311 current_process_handle
= proch
;
312 current_process_id
= pid
;
315 soft_interrupt_requested
= 0;
316 faked_breakpoint
= 0;
318 memset (¤t_event
, 0, sizeof (current_event
));
320 add_process (pid
, attached
);
321 child_init_thread_list ();
323 if (the_low_target
.initial_stuff
!= NULL
)
324 (*the_low_target
.initial_stuff
) ();
327 /* Resume all artificially suspended threads if we are continuing
330 continue_one_thread (struct inferior_list_entry
*this_thread
, void *id_ptr
)
332 struct thread_info
*thread
= (struct thread_info
*) this_thread
;
333 int thread_id
= * (int *) id_ptr
;
334 win32_thread_info
*th
= inferior_target_data (thread
);
336 if ((thread_id
== -1 || thread_id
== th
->tid
)
339 if (th
->context
.ContextFlags
)
341 win32_set_thread_context (th
);
342 th
->context
.ContextFlags
= 0;
345 if (ResumeThread (th
->h
) == (DWORD
) -1)
347 DWORD err
= GetLastError ();
348 OUTMSG (("warning: ResumeThread failed in continue_one_thread, "
349 "(error %d): %s\n", (int) err
, strwinerror (err
)));
358 child_continue (DWORD continue_status
, int thread_id
)
360 /* The inferior will only continue after the ContinueDebugEvent
362 find_inferior (&all_threads
, continue_one_thread
, &thread_id
);
363 faked_breakpoint
= 0;
365 if (!ContinueDebugEvent (current_event
.dwProcessId
,
366 current_event
.dwThreadId
,
373 /* Fetch register(s) from the current thread context. */
375 child_fetch_inferior_registers (int r
)
378 win32_thread_info
*th
= thread_rec (current_inferior_ptid (), TRUE
);
379 if (r
== -1 || r
> NUM_REGS
)
380 child_fetch_inferior_registers (NUM_REGS
);
382 for (regno
= 0; regno
< r
; regno
++)
383 (*the_low_target
.fetch_inferior_register
) (th
, regno
);
386 /* Store a new register value into the current thread context. We don't
387 change the program's context until later, when we resume it. */
389 child_store_inferior_registers (int r
)
392 win32_thread_info
*th
= thread_rec (current_inferior_ptid (), TRUE
);
393 if (r
== -1 || r
== 0 || r
> NUM_REGS
)
394 child_store_inferior_registers (NUM_REGS
);
396 for (regno
= 0; regno
< r
; regno
++)
397 (*the_low_target
.store_inferior_register
) (th
, regno
);
400 /* Map the Windows error number in ERROR to a locale-dependent error
401 message string and return a pointer to it. Typically, the values
402 for ERROR come from GetLastError.
404 The string pointed to shall not be modified by the application,
405 but may be overwritten by a subsequent call to strwinerror
407 The strwinerror function does not change the current setting
411 strwinerror (DWORD error
)
413 static char buf
[1024];
415 DWORD lasterr
= GetLastError ();
416 DWORD chars
= FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM
417 | FORMAT_MESSAGE_ALLOCATE_BUFFER
,
420 0, /* Default language */
426 /* If there is an \r\n appended, zap it. */
428 && msgbuf
[chars
- 2] == '\r'
429 && msgbuf
[chars
- 1] == '\n')
435 if (chars
> ((COUNTOF (buf
)) - 1))
437 chars
= COUNTOF (buf
) - 1;
442 wcstombs (buf
, msgbuf
, chars
+ 1);
444 strncpy (buf
, msgbuf
, chars
+ 1);
449 sprintf (buf
, "unknown win32 error (%ld)", error
);
451 SetLastError (lasterr
);
456 create_process (const char *program
, char *args
,
457 DWORD flags
, PROCESS_INFORMATION
*pi
)
462 wchar_t *p
, *wprogram
, *wargs
;
465 wprogram
= alloca ((strlen (program
) + 1) * sizeof (wchar_t));
466 mbstowcs (wprogram
, program
, strlen (program
) + 1);
468 for (p
= wprogram
; *p
; ++p
)
472 argslen
= strlen (args
);
473 wargs
= alloca ((argslen
+ 1) * sizeof (wchar_t));
474 mbstowcs (wargs
, args
, argslen
+ 1);
476 ret
= CreateProcessW (wprogram
, /* image name */
477 wargs
, /* command line */
478 NULL
, /* security, not supported */
479 NULL
, /* thread, not supported */
480 FALSE
, /* inherit handles, not supported */
481 flags
, /* start flags */
482 NULL
, /* environment, not supported */
483 NULL
, /* current directory, not supported */
484 NULL
, /* start info, not supported */
487 STARTUPINFOA si
= { sizeof (STARTUPINFOA
) };
489 ret
= CreateProcessA (program
, /* image name */
490 args
, /* command line */
493 TRUE
, /* inherit handles */
494 flags
, /* start flags */
495 NULL
, /* environment */
496 NULL
, /* current directory */
497 &si
, /* start info */
504 /* Start a new process.
505 PROGRAM is a path to the program to execute.
506 ARGS is a standard NULL-terminated array of arguments,
507 to be passed to the inferior as ``argv''.
508 Returns the new PID on success, -1 on failure. Registers the new
509 process with the process list. */
511 win32_create_inferior (char *program
, char **program_args
)
514 char real_path
[MAXPATHLEN
];
515 char *orig_path
, *new_path
, *path_ptr
;
522 PROCESS_INFORMATION pi
;
525 /* win32_wait needs to know we're not attaching. */
529 error ("No executable specified, specify executable to debug.\n");
531 flags
= DEBUG_PROCESS
| DEBUG_ONLY_THIS_PROCESS
;
535 path_ptr
= getenv ("PATH");
538 orig_path
= alloca (strlen (path_ptr
) + 1);
539 new_path
= alloca (cygwin_posix_to_win32_path_list_buf_size (path_ptr
));
540 strcpy (orig_path
, path_ptr
);
541 cygwin_posix_to_win32_path_list (path_ptr
, new_path
);
542 setenv ("PATH", new_path
, 1);
544 cygwin_conv_to_win32_path (program
, real_path
);
549 for (argc
= 1; program_args
[argc
]; argc
++)
550 argslen
+= strlen (program_args
[argc
]) + 1;
551 args
= alloca (argslen
);
553 for (argc
= 1; program_args
[argc
]; argc
++)
555 /* FIXME: Can we do better about quoting? How does Cygwin
558 strcat (args
, program_args
[argc
]);
560 OUTMSG2 (("Command line is \"%s\"\n", args
));
562 #ifdef CREATE_NEW_PROCESS_GROUP
563 flags
|= CREATE_NEW_PROCESS_GROUP
;
566 ret
= create_process (program
, args
, flags
, &pi
);
567 err
= GetLastError ();
568 if (!ret
&& err
== ERROR_FILE_NOT_FOUND
)
570 char *exename
= alloca (strlen (program
) + 5);
571 strcat (strcpy (exename
, program
), ".exe");
572 ret
= create_process (exename
, args
, flags
, &pi
);
573 err
= GetLastError ();
578 setenv ("PATH", orig_path
, 1);
583 error ("Error creating process \"%s%s\", (error %d): %s\n",
584 program
, args
, (int) err
, strwinerror (err
));
588 OUTMSG2 (("Process created: %s\n", (char *) args
));
592 /* On Windows CE this handle can't be closed. The OS reuses
593 it in the debug events, while the 9x/NT versions of Windows
594 probably use a DuplicateHandle'd one. */
595 CloseHandle (pi
.hThread
);
598 do_initial_child_stuff (pi
.hProcess
, pi
.dwProcessId
, 0);
600 return current_process_id
;
603 /* Attach to a running process.
604 PID is the process ID to attach to, specified by the user
605 or a higher layer. */
607 win32_attach (unsigned long pid
)
610 winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit
= NULL
;
613 HMODULE dll
= GetModuleHandle (_T("COREDLL.DLL"));
615 HMODULE dll
= GetModuleHandle (_T("KERNEL32.DLL"));
617 DebugSetProcessKillOnExit
= GETPROCADDRESS (dll
, DebugSetProcessKillOnExit
);
619 h
= OpenProcess (PROCESS_ALL_ACCESS
, FALSE
, pid
);
622 if (DebugActiveProcess (pid
))
624 if (DebugSetProcessKillOnExit
!= NULL
)
625 DebugSetProcessKillOnExit (FALSE
);
627 /* win32_wait needs to know we're attaching. */
629 do_initial_child_stuff (h
, pid
, 1);
636 err
= GetLastError ();
637 error ("Attach to process failed (error %d): %s\n",
638 (int) err
, strwinerror (err
));
641 /* Handle OUTPUT_DEBUG_STRING_EVENT from child process. */
643 handle_output_debug_string (struct target_waitstatus
*ourstatus
)
645 #define READ_BUFFER_LEN 1024
647 char s
[READ_BUFFER_LEN
+ 1] = { 0 };
648 DWORD nbytes
= current_event
.u
.DebugString
.nDebugStringLength
;
653 if (nbytes
> READ_BUFFER_LEN
)
654 nbytes
= READ_BUFFER_LEN
;
656 addr
= (CORE_ADDR
) (size_t) current_event
.u
.DebugString
.lpDebugStringData
;
658 if (current_event
.u
.DebugString
.fUnicode
)
660 /* The event tells us how many bytes, not chars, even
662 WCHAR buffer
[(READ_BUFFER_LEN
+ 1) / sizeof (WCHAR
)] = { 0 };
663 if (read_inferior_memory (addr
, (unsigned char *) buffer
, nbytes
) != 0)
665 wcstombs (s
, buffer
, (nbytes
+ 1) / sizeof (WCHAR
));
669 if (read_inferior_memory (addr
, (unsigned char *) s
, nbytes
) != 0)
673 if (strncmp (s
, "cYg", 3) != 0)
683 #undef READ_BUFFER_LEN
687 win32_clear_inferiors (void)
689 if (current_process_handle
!= NULL
)
690 CloseHandle (current_process_handle
);
692 for_each_inferior (&all_threads
, delete_thread_info
);
696 /* Kill all inferiors. */
700 struct process_info
*process
;
702 if (current_process_handle
== NULL
)
705 TerminateProcess (current_process_handle
, 0);
708 if (!child_continue (DBG_CONTINUE
, -1))
710 if (!WaitForDebugEvent (¤t_event
, INFINITE
))
712 if (current_event
.dwDebugEventCode
== EXIT_PROCESS_DEBUG_EVENT
)
714 else if (current_event
.dwDebugEventCode
== OUTPUT_DEBUG_STRING_EVENT
)
716 struct target_waitstatus our_status
= { 0 };
717 handle_output_debug_string (&our_status
);
721 win32_clear_inferiors ();
723 process
= find_process_pid (pid
);
724 remove_process (process
);
728 /* Detach from inferior PID. */
730 win32_detach (int pid
)
732 struct process_info
*process
;
733 winapi_DebugActiveProcessStop DebugActiveProcessStop
= NULL
;
734 winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit
= NULL
;
736 HMODULE dll
= GetModuleHandle (_T("COREDLL.DLL"));
738 HMODULE dll
= GetModuleHandle (_T("KERNEL32.DLL"));
740 DebugActiveProcessStop
= GETPROCADDRESS (dll
, DebugActiveProcessStop
);
741 DebugSetProcessKillOnExit
= GETPROCADDRESS (dll
, DebugSetProcessKillOnExit
);
743 if (DebugSetProcessKillOnExit
== NULL
744 || DebugActiveProcessStop
== NULL
)
748 struct thread_resume resume
;
749 resume
.thread
= minus_one_ptid
;
750 resume
.kind
= resume_continue
;
752 win32_resume (&resume
, 1);
755 if (!DebugActiveProcessStop (current_process_id
))
758 DebugSetProcessKillOnExit (FALSE
);
759 process
= find_process_pid (pid
);
760 remove_process (process
);
762 win32_clear_inferiors ();
766 /* Wait for inferiors to end. */
770 HANDLE h
= OpenProcess (PROCESS_ALL_ACCESS
, FALSE
, pid
);
773 WaitForSingleObject (h
, INFINITE
);
778 /* Return 1 iff the thread with thread ID TID is alive. */
780 win32_thread_alive (ptid_t ptid
)
784 /* Our thread list is reliable; don't bother to poll target
786 if (find_inferior_id (&all_threads
, ptid
) != NULL
)
793 /* Resume the inferior process. RESUME_INFO describes how we want
796 win32_resume (struct thread_resume
*resume_info
, size_t n
)
799 enum target_signal sig
;
801 win32_thread_info
*th
;
802 DWORD continue_status
= DBG_CONTINUE
;
805 /* This handles the very limited set of resume packets that GDB can
806 currently produce. */
808 if (n
== 1 && ptid_equal (resume_info
[0].thread
, minus_one_ptid
))
813 /* Yes, we're ignoring resume_info[0].thread. It'd be tricky to make
814 the Windows resume code do the right thing for thread switching. */
815 tid
= current_event
.dwThreadId
;
817 if (!ptid_equal (resume_info
[0].thread
, minus_one_ptid
))
819 sig
= resume_info
[0].sig
;
820 step
= resume_info
[0].kind
== resume_step
;
828 if (sig
!= TARGET_SIGNAL_0
)
830 if (current_event
.dwDebugEventCode
!= EXCEPTION_DEBUG_EVENT
)
832 OUTMSG (("Cannot continue with signal %d here.\n", sig
));
834 else if (sig
== last_sig
)
835 continue_status
= DBG_EXCEPTION_NOT_HANDLED
;
837 OUTMSG (("Can only continue with recieved signal %d.\n", last_sig
));
840 last_sig
= TARGET_SIGNAL_0
;
842 /* Get context for the currently selected thread. */
843 ptid
= debug_event_ptid (¤t_event
);
844 th
= thread_rec (ptid
, FALSE
);
847 if (th
->context
.ContextFlags
)
849 /* Move register values from the inferior into the thread
850 context structure. */
851 regcache_invalidate ();
855 if (the_low_target
.single_step
!= NULL
)
856 (*the_low_target
.single_step
) (th
);
858 error ("Single stepping is not supported "
859 "in this configuration.\n");
862 win32_set_thread_context (th
);
863 th
->context
.ContextFlags
= 0;
867 /* Allow continuing with the same signal that interrupted us.
868 Otherwise complain. */
870 child_continue (continue_status
, tid
);
874 win32_add_one_solib (const char *name
, CORE_ADDR load_addr
)
876 char buf
[MAX_PATH
+ 1];
877 char buf2
[MAX_PATH
+ 1];
880 WIN32_FIND_DATA w32_fd
;
881 WCHAR wname
[MAX_PATH
+ 1];
882 mbstowcs (wname
, name
, MAX_PATH
);
883 HANDLE h
= FindFirstFile (wname
, &w32_fd
);
885 WIN32_FIND_DATAA w32_fd
;
886 HANDLE h
= FindFirstFileA (name
, &w32_fd
);
889 if (h
== INVALID_HANDLE_VALUE
)
897 char cwd
[MAX_PATH
+ 1];
899 if (GetCurrentDirectoryA (MAX_PATH
+ 1, cwd
))
901 p
= strrchr (buf
, '\\');
904 SetCurrentDirectoryA (buf
);
905 GetFullPathNameA (w32_fd
.cFileName
, MAX_PATH
, buf
, &p
);
906 SetCurrentDirectoryA (cwd
);
913 if (strcasecmp (buf
, "ntdll.dll") == 0)
915 GetSystemDirectoryA (buf
, sizeof (buf
));
916 strcat (buf
, "\\ntdll.dll");
921 cygwin_conv_to_posix_path (buf
, buf2
);
926 loaded_dll (buf2
, load_addr
);
930 get_image_name (HANDLE h
, void *address
, int unicode
)
932 static char buf
[(2 * MAX_PATH
) + 1];
933 DWORD size
= unicode
? sizeof (WCHAR
) : sizeof (char);
939 /* Attempt to read the name of the dll that was detected.
940 This is documented to work only when actively debugging
941 a program. It will not work for attached processes. */
946 /* Windows CE reports the address of the image name,
947 instead of an address of a pointer into the image name. */
948 address_ptr
= address
;
950 /* See if we could read the address of a string, and that the
951 address isn't null. */
952 if (!ReadProcessMemory (h
, address
, &address_ptr
,
953 sizeof (address_ptr
), &done
)
954 || done
!= sizeof (address_ptr
)
959 /* Find the length of the string */
960 while (ReadProcessMemory (h
, address_ptr
+ len
++ * size
, &b
, size
, &done
)
961 && (b
[0] != 0 || b
[size
- 1] != 0) && done
== size
)
965 ReadProcessMemory (h
, address_ptr
, buf
, len
, &done
);
968 WCHAR
*unicode_address
= (WCHAR
*) alloca (len
* sizeof (WCHAR
));
969 ReadProcessMemory (h
, address_ptr
, unicode_address
, len
* sizeof (WCHAR
),
972 WideCharToMultiByte (CP_ACP
, 0, unicode_address
, len
, buf
, len
, 0, 0);
978 typedef BOOL (WINAPI
*winapi_EnumProcessModules
) (HANDLE
, HMODULE
*,
980 typedef BOOL (WINAPI
*winapi_GetModuleInformation
) (HANDLE
, HMODULE
,
981 LPMODULEINFO
, DWORD
);
982 typedef DWORD (WINAPI
*winapi_GetModuleFileNameExA
) (HANDLE
, HMODULE
,
985 static winapi_EnumProcessModules win32_EnumProcessModules
;
986 static winapi_GetModuleInformation win32_GetModuleInformation
;
987 static winapi_GetModuleFileNameExA win32_GetModuleFileNameExA
;
992 static int psapi_loaded
= 0;
993 static HMODULE dll
= NULL
;
998 dll
= LoadLibrary (TEXT("psapi.dll"));
1001 win32_EnumProcessModules
=
1002 GETPROCADDRESS (dll
, EnumProcessModules
);
1003 win32_GetModuleInformation
=
1004 GETPROCADDRESS (dll
, GetModuleInformation
);
1005 win32_GetModuleFileNameExA
=
1006 GETPROCADDRESS (dll
, GetModuleFileNameExA
);
1009 return (win32_EnumProcessModules
!= NULL
1010 && win32_GetModuleInformation
!= NULL
1011 && win32_GetModuleFileNameExA
!= NULL
);
1015 psapi_get_dll_name (DWORD BaseAddress
, char *dll_name_ret
)
1021 HMODULE
*DllHandle
= dh_buf
;
1029 ok
= (*win32_EnumProcessModules
) (current_process_handle
,
1034 if (!ok
|| !cbNeeded
)
1037 DllHandle
= (HMODULE
*) alloca (cbNeeded
);
1041 ok
= (*win32_EnumProcessModules
) (current_process_handle
,
1048 for (i
= 0; i
< ((size_t) cbNeeded
/ sizeof (HMODULE
)); i
++)
1050 if (!(*win32_GetModuleInformation
) (current_process_handle
,
1055 DWORD err
= GetLastError ();
1056 error ("Can't get module info: (error %d): %s\n",
1057 (int) err
, strwinerror (err
));
1060 if ((DWORD
) (mi
.lpBaseOfDll
) == BaseAddress
)
1062 len
= (*win32_GetModuleFileNameExA
) (current_process_handle
,
1068 DWORD err
= GetLastError ();
1069 error ("Error getting dll name: (error %d): %s\n",
1070 (int) err
, strwinerror (err
));
1077 dll_name_ret
[0] = '\0';
1081 typedef HANDLE (WINAPI
*winapi_CreateToolhelp32Snapshot
) (DWORD
, DWORD
);
1082 typedef BOOL (WINAPI
*winapi_Module32First
) (HANDLE
, LPMODULEENTRY32
);
1083 typedef BOOL (WINAPI
*winapi_Module32Next
) (HANDLE
, LPMODULEENTRY32
);
1085 static winapi_CreateToolhelp32Snapshot win32_CreateToolhelp32Snapshot
;
1086 static winapi_Module32First win32_Module32First
;
1087 static winapi_Module32Next win32_Module32Next
;
1089 typedef BOOL (WINAPI
*winapi_CloseToolhelp32Snapshot
) (HANDLE
);
1090 static winapi_CloseToolhelp32Snapshot win32_CloseToolhelp32Snapshot
;
1094 load_toolhelp (void)
1096 static int toolhelp_loaded
= 0;
1097 static HMODULE dll
= NULL
;
1099 if (!toolhelp_loaded
)
1101 toolhelp_loaded
= 1;
1103 dll
= GetModuleHandle (_T("KERNEL32.DLL"));
1105 dll
= LoadLibrary (L
"TOOLHELP.DLL");
1110 win32_CreateToolhelp32Snapshot
=
1111 GETPROCADDRESS (dll
, CreateToolhelp32Snapshot
);
1112 win32_Module32First
= GETPROCADDRESS (dll
, Module32First
);
1113 win32_Module32Next
= GETPROCADDRESS (dll
, Module32Next
);
1115 win32_CloseToolhelp32Snapshot
=
1116 GETPROCADDRESS (dll
, CloseToolhelp32Snapshot
);
1120 return (win32_CreateToolhelp32Snapshot
!= NULL
1121 && win32_Module32First
!= NULL
1122 && win32_Module32Next
!= NULL
1124 && win32_CloseToolhelp32Snapshot
!= NULL
1130 toolhelp_get_dll_name (DWORD BaseAddress
, char *dll_name_ret
)
1132 HANDLE snapshot_module
;
1133 MODULEENTRY32 modEntry
= { sizeof (MODULEENTRY32
) };
1136 if (!load_toolhelp ())
1139 snapshot_module
= win32_CreateToolhelp32Snapshot (TH32CS_SNAPMODULE
,
1140 current_event
.dwProcessId
);
1141 if (snapshot_module
== INVALID_HANDLE_VALUE
)
1144 /* Ignore the first module, which is the exe. */
1145 if (win32_Module32First (snapshot_module
, &modEntry
))
1146 while (win32_Module32Next (snapshot_module
, &modEntry
))
1147 if ((DWORD
) modEntry
.modBaseAddr
== BaseAddress
)
1150 wcstombs (dll_name_ret
, modEntry
.szExePath
, MAX_PATH
+ 1);
1152 strcpy (dll_name_ret
, modEntry
.szExePath
);
1159 win32_CloseToolhelp32Snapshot (snapshot_module
);
1161 CloseHandle (snapshot_module
);
1167 handle_load_dll (void)
1169 LOAD_DLL_DEBUG_INFO
*event
= ¤t_event
.u
.LoadDll
;
1170 char dll_buf
[MAX_PATH
+ 1];
1171 char *dll_name
= NULL
;
1174 dll_buf
[0] = dll_buf
[sizeof (dll_buf
) - 1] = '\0';
1176 /* Windows does not report the image name of the dlls in the debug
1177 event on attaches. We resort to iterating over the list of
1178 loaded dlls looking for a match by image base. */
1179 if (!psapi_get_dll_name ((DWORD
) event
->lpBaseOfDll
, dll_buf
))
1181 if (!server_waiting
)
1182 /* On some versions of Windows and Windows CE, we can't create
1183 toolhelp snapshots while the inferior is stopped in a
1184 LOAD_DLL_DEBUG_EVENT due to a dll load, but we can while
1185 Windows is reporting the already loaded dlls. */
1186 toolhelp_get_dll_name ((DWORD
) event
->lpBaseOfDll
, dll_buf
);
1191 if (*dll_name
== '\0')
1192 dll_name
= get_image_name (current_process_handle
,
1193 event
->lpImageName
, event
->fUnicode
);
1197 /* The symbols in a dll are offset by 0x1000, which is the
1198 the offset from 0 of the first byte in an image - because
1199 of the file header and the section alignment. */
1201 load_addr
= (DWORD
) event
->lpBaseOfDll
+ 0x1000;
1202 win32_add_one_solib (dll_name
, load_addr
);
1206 handle_unload_dll (void)
1208 CORE_ADDR load_addr
=
1209 (CORE_ADDR
) (DWORD
) current_event
.u
.UnloadDll
.lpBaseOfDll
;
1210 load_addr
+= 0x1000;
1211 unloaded_dll (NULL
, load_addr
);
1215 handle_exception (struct target_waitstatus
*ourstatus
)
1217 DWORD code
= current_event
.u
.Exception
.ExceptionRecord
.ExceptionCode
;
1219 ourstatus
->kind
= TARGET_WAITKIND_STOPPED
;
1223 case EXCEPTION_ACCESS_VIOLATION
:
1224 OUTMSG2 (("EXCEPTION_ACCESS_VIOLATION"));
1225 ourstatus
->value
.sig
= TARGET_SIGNAL_SEGV
;
1227 case STATUS_STACK_OVERFLOW
:
1228 OUTMSG2 (("STATUS_STACK_OVERFLOW"));
1229 ourstatus
->value
.sig
= TARGET_SIGNAL_SEGV
;
1231 case STATUS_FLOAT_DENORMAL_OPERAND
:
1232 OUTMSG2 (("STATUS_FLOAT_DENORMAL_OPERAND"));
1233 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1235 case EXCEPTION_ARRAY_BOUNDS_EXCEEDED
:
1236 OUTMSG2 (("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"));
1237 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1239 case STATUS_FLOAT_INEXACT_RESULT
:
1240 OUTMSG2 (("STATUS_FLOAT_INEXACT_RESULT"));
1241 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1243 case STATUS_FLOAT_INVALID_OPERATION
:
1244 OUTMSG2 (("STATUS_FLOAT_INVALID_OPERATION"));
1245 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1247 case STATUS_FLOAT_OVERFLOW
:
1248 OUTMSG2 (("STATUS_FLOAT_OVERFLOW"));
1249 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1251 case STATUS_FLOAT_STACK_CHECK
:
1252 OUTMSG2 (("STATUS_FLOAT_STACK_CHECK"));
1253 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1255 case STATUS_FLOAT_UNDERFLOW
:
1256 OUTMSG2 (("STATUS_FLOAT_UNDERFLOW"));
1257 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1259 case STATUS_FLOAT_DIVIDE_BY_ZERO
:
1260 OUTMSG2 (("STATUS_FLOAT_DIVIDE_BY_ZERO"));
1261 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1263 case STATUS_INTEGER_DIVIDE_BY_ZERO
:
1264 OUTMSG2 (("STATUS_INTEGER_DIVIDE_BY_ZERO"));
1265 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1267 case STATUS_INTEGER_OVERFLOW
:
1268 OUTMSG2 (("STATUS_INTEGER_OVERFLOW"));
1269 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
1271 case EXCEPTION_BREAKPOINT
:
1272 OUTMSG2 (("EXCEPTION_BREAKPOINT"));
1273 ourstatus
->value
.sig
= TARGET_SIGNAL_TRAP
;
1275 /* Remove the initial breakpoint. */
1276 check_breakpoints ((CORE_ADDR
) (long) current_event
1277 .u
.Exception
.ExceptionRecord
.ExceptionAddress
);
1281 OUTMSG2 (("DBG_CONTROL_C"));
1282 ourstatus
->value
.sig
= TARGET_SIGNAL_INT
;
1284 case DBG_CONTROL_BREAK
:
1285 OUTMSG2 (("DBG_CONTROL_BREAK"));
1286 ourstatus
->value
.sig
= TARGET_SIGNAL_INT
;
1288 case EXCEPTION_SINGLE_STEP
:
1289 OUTMSG2 (("EXCEPTION_SINGLE_STEP"));
1290 ourstatus
->value
.sig
= TARGET_SIGNAL_TRAP
;
1292 case EXCEPTION_ILLEGAL_INSTRUCTION
:
1293 OUTMSG2 (("EXCEPTION_ILLEGAL_INSTRUCTION"));
1294 ourstatus
->value
.sig
= TARGET_SIGNAL_ILL
;
1296 case EXCEPTION_PRIV_INSTRUCTION
:
1297 OUTMSG2 (("EXCEPTION_PRIV_INSTRUCTION"));
1298 ourstatus
->value
.sig
= TARGET_SIGNAL_ILL
;
1300 case EXCEPTION_NONCONTINUABLE_EXCEPTION
:
1301 OUTMSG2 (("EXCEPTION_NONCONTINUABLE_EXCEPTION"));
1302 ourstatus
->value
.sig
= TARGET_SIGNAL_ILL
;
1305 if (current_event
.u
.Exception
.dwFirstChance
)
1307 ourstatus
->kind
= TARGET_WAITKIND_SPURIOUS
;
1310 OUTMSG2 (("gdbserver: unknown target exception 0x%08lx at 0x%08lx",
1311 current_event
.u
.Exception
.ExceptionRecord
.ExceptionCode
,
1312 (DWORD
) current_event
.u
.Exception
.ExceptionRecord
.
1314 ourstatus
->value
.sig
= TARGET_SIGNAL_UNKNOWN
;
1318 last_sig
= ourstatus
->value
.sig
;
1323 suspend_one_thread (struct inferior_list_entry
*entry
)
1325 struct thread_info
*thread
= (struct thread_info
*) entry
;
1326 win32_thread_info
*th
= inferior_target_data (thread
);
1330 if (SuspendThread (th
->h
) == (DWORD
) -1)
1332 DWORD err
= GetLastError ();
1333 OUTMSG (("warning: SuspendThread failed in suspend_one_thread, "
1334 "(error %d): %s\n", (int) err
, strwinerror (err
)));
1342 fake_breakpoint_event (void)
1344 OUTMSG2(("fake_breakpoint_event\n"));
1346 faked_breakpoint
= 1;
1348 memset (¤t_event
, 0, sizeof (current_event
));
1349 current_event
.dwThreadId
= main_thread_id
;
1350 current_event
.dwDebugEventCode
= EXCEPTION_DEBUG_EVENT
;
1351 current_event
.u
.Exception
.ExceptionRecord
.ExceptionCode
1352 = EXCEPTION_BREAKPOINT
;
1354 for_each_inferior (&all_threads
, suspend_one_thread
);
1359 auto_delete_breakpoint (CORE_ADDR stop_pc
)
1365 /* Get the next event from the child. */
1368 get_child_debug_event (struct target_waitstatus
*ourstatus
)
1372 last_sig
= TARGET_SIGNAL_0
;
1373 ourstatus
->kind
= TARGET_WAITKIND_SPURIOUS
;
1375 /* Check if GDB sent us an interrupt request. */
1376 check_remote_input_interrupt_request ();
1378 if (soft_interrupt_requested
)
1380 soft_interrupt_requested
= 0;
1381 fake_breakpoint_event ();
1390 /* WinCE doesn't set an initial breakpoint automatically. To
1391 stop the inferior, we flush all currently pending debug
1392 events -- the thread list and the dll list are always
1393 reported immediatelly without delay, then, we suspend all
1394 threads and pretend we saw a trap at the current PC of the
1397 Contrary to desktop Windows, Windows CE *does* report the dll
1398 names on LOAD_DLL_DEBUG_EVENTs resulting from a
1399 DebugActiveProcess call. This limits the way we can detect
1400 if all the dlls have already been reported. If we get a real
1401 debug event before leaving attaching, the worst that will
1402 happen is the user will see a spurious breakpoint. */
1404 current_event
.dwDebugEventCode
= 0;
1405 if (!WaitForDebugEvent (¤t_event
, 0))
1407 OUTMSG2(("no attach events left\n"));
1408 fake_breakpoint_event ();
1412 OUTMSG2(("got attach event\n"));
1417 /* Keep the wait time low enough for confortable remote
1418 interruption, but high enough so gdbserver doesn't become a
1420 if (!WaitForDebugEvent (¤t_event
, 250))
1422 DWORD e
= GetLastError();
1424 if (e
== ERROR_PIPE_NOT_CONNECTED
)
1426 /* This will happen if the loader fails to succesfully
1427 load the application, e.g., if the main executable
1428 tries to pull in a non-existing export from a
1430 ourstatus
->kind
= TARGET_WAITKIND_EXITED
;
1431 ourstatus
->value
.integer
= 1;
1441 switch (current_event
.dwDebugEventCode
)
1443 case CREATE_THREAD_DEBUG_EVENT
:
1444 OUTMSG2 (("gdbserver: kernel event CREATE_THREAD_DEBUG_EVENT "
1445 "for pid=%d tid=%x)\n",
1446 (unsigned) current_event
.dwProcessId
,
1447 (unsigned) current_event
.dwThreadId
));
1449 /* Record the existence of this thread. */
1450 child_add_thread (current_event
.dwProcessId
,
1451 current_event
.dwThreadId
,
1452 current_event
.u
.CreateThread
.hThread
);
1455 case EXIT_THREAD_DEBUG_EVENT
:
1456 OUTMSG2 (("gdbserver: kernel event EXIT_THREAD_DEBUG_EVENT "
1457 "for pid=%d tid=%x\n",
1458 (unsigned) current_event
.dwProcessId
,
1459 (unsigned) current_event
.dwThreadId
));
1460 child_delete_thread (current_event
.dwProcessId
,
1461 current_event
.dwThreadId
);
1463 current_inferior
= (struct thread_info
*) all_threads
.head
;
1466 case CREATE_PROCESS_DEBUG_EVENT
:
1467 OUTMSG2 (("gdbserver: kernel event CREATE_PROCESS_DEBUG_EVENT "
1468 "for pid=%d tid=%x\n",
1469 (unsigned) current_event
.dwProcessId
,
1470 (unsigned) current_event
.dwThreadId
));
1471 CloseHandle (current_event
.u
.CreateProcessInfo
.hFile
);
1473 current_process_handle
= current_event
.u
.CreateProcessInfo
.hProcess
;
1474 main_thread_id
= current_event
.dwThreadId
;
1476 ourstatus
->kind
= TARGET_WAITKIND_EXECD
;
1477 ourstatus
->value
.execd_pathname
= "Main executable";
1479 /* Add the main thread. */
1480 child_add_thread (current_event
.dwProcessId
,
1482 current_event
.u
.CreateProcessInfo
.hThread
);
1484 ourstatus
->value
.related_pid
= debug_event_ptid (¤t_event
);
1488 /* Windows CE doesn't set the initial breakpoint
1489 automatically like the desktop versions of Windows do.
1490 We add it explicitly here. It will be removed as soon as
1492 set_breakpoint_at ((CORE_ADDR
) (long) current_event
.u
1493 .CreateProcessInfo
.lpStartAddress
,
1494 auto_delete_breakpoint
);
1499 case EXIT_PROCESS_DEBUG_EVENT
:
1500 OUTMSG2 (("gdbserver: kernel event EXIT_PROCESS_DEBUG_EVENT "
1501 "for pid=%d tid=%x\n",
1502 (unsigned) current_event
.dwProcessId
,
1503 (unsigned) current_event
.dwThreadId
));
1504 ourstatus
->kind
= TARGET_WAITKIND_EXITED
;
1505 ourstatus
->value
.integer
= current_event
.u
.ExitProcess
.dwExitCode
;
1506 child_continue (DBG_CONTINUE
, -1);
1507 CloseHandle (current_process_handle
);
1508 current_process_handle
= NULL
;
1511 case LOAD_DLL_DEBUG_EVENT
:
1512 OUTMSG2 (("gdbserver: kernel event LOAD_DLL_DEBUG_EVENT "
1513 "for pid=%d tid=%x\n",
1514 (unsigned) current_event
.dwProcessId
,
1515 (unsigned) current_event
.dwThreadId
));
1516 CloseHandle (current_event
.u
.LoadDll
.hFile
);
1519 ourstatus
->kind
= TARGET_WAITKIND_LOADED
;
1520 ourstatus
->value
.sig
= TARGET_SIGNAL_TRAP
;
1523 case UNLOAD_DLL_DEBUG_EVENT
:
1524 OUTMSG2 (("gdbserver: kernel event UNLOAD_DLL_DEBUG_EVENT "
1525 "for pid=%d tid=%x\n",
1526 (unsigned) current_event
.dwProcessId
,
1527 (unsigned) current_event
.dwThreadId
));
1528 handle_unload_dll ();
1529 ourstatus
->kind
= TARGET_WAITKIND_LOADED
;
1530 ourstatus
->value
.sig
= TARGET_SIGNAL_TRAP
;
1533 case EXCEPTION_DEBUG_EVENT
:
1534 OUTMSG2 (("gdbserver: kernel event EXCEPTION_DEBUG_EVENT "
1535 "for pid=%d tid=%x\n",
1536 (unsigned) current_event
.dwProcessId
,
1537 (unsigned) current_event
.dwThreadId
));
1538 handle_exception (ourstatus
);
1541 case OUTPUT_DEBUG_STRING_EVENT
:
1542 /* A message from the kernel (or Cygwin). */
1543 OUTMSG2 (("gdbserver: kernel event OUTPUT_DEBUG_STRING_EVENT "
1544 "for pid=%d tid=%x\n",
1545 (unsigned) current_event
.dwProcessId
,
1546 (unsigned) current_event
.dwThreadId
));
1547 handle_output_debug_string (ourstatus
);
1551 OUTMSG2 (("gdbserver: kernel event unknown "
1552 "for pid=%d tid=%x code=%ld\n",
1553 (unsigned) current_event
.dwProcessId
,
1554 (unsigned) current_event
.dwThreadId
,
1555 current_event
.dwDebugEventCode
));
1559 ptid
= debug_event_ptid (¤t_event
);
1561 (struct thread_info
*) find_inferior_id (&all_threads
, ptid
);
1565 /* Wait for the inferior process to change state.
1566 STATUS will be filled in with a response code to send to GDB.
1567 Returns the signal which caused the process to stop. */
1569 win32_wait (ptid_t ptid
, struct target_waitstatus
*ourstatus
, int options
)
1571 struct process_info
*process
;
1575 if (!get_child_debug_event (ourstatus
))
1578 switch (ourstatus
->kind
)
1580 case TARGET_WAITKIND_EXITED
:
1581 OUTMSG2 (("Child exited with retcode = %x\n",
1582 ourstatus
->value
.integer
));
1584 process
= find_process_pid (current_process_id
);
1585 remove_process (process
);
1586 win32_clear_inferiors ();
1587 return pid_to_ptid (current_event
.dwProcessId
);
1588 case TARGET_WAITKIND_STOPPED
:
1589 case TARGET_WAITKIND_LOADED
:
1590 OUTMSG2 (("Child Stopped with signal = %d \n",
1591 ourstatus
->value
.sig
));
1593 child_fetch_inferior_registers (-1);
1595 if (ourstatus
->kind
== TARGET_WAITKIND_LOADED
1598 /* When gdb connects, we want to be stopped at the
1599 initial breakpoint, not in some dll load event. */
1600 child_continue (DBG_CONTINUE
, -1);
1604 /* We don't expose _LOADED events to gdbserver core. See
1605 the `dlls_changed' global. */
1606 if (ourstatus
->kind
== TARGET_WAITKIND_LOADED
)
1607 ourstatus
->kind
= TARGET_WAITKIND_STOPPED
;
1609 return debug_event_ptid (¤t_event
);
1611 OUTMSG (("Ignoring unknown internal event, %d\n", ourstatus
->kind
));
1613 case TARGET_WAITKIND_SPURIOUS
:
1614 case TARGET_WAITKIND_EXECD
:
1615 /* do nothing, just continue */
1616 child_continue (DBG_CONTINUE
, -1);
1622 /* Fetch registers from the inferior process.
1623 If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
1625 win32_fetch_inferior_registers (int regno
)
1627 child_fetch_inferior_registers (regno
);
1630 /* Store registers to the inferior process.
1631 If REGNO is -1, store all registers; otherwise, store at least REGNO. */
1633 win32_store_inferior_registers (int regno
)
1635 child_store_inferior_registers (regno
);
1638 /* Read memory from the inferior process. This should generally be
1639 called through read_inferior_memory, which handles breakpoint shadowing.
1640 Read LEN bytes at MEMADDR into a buffer at MYADDR. */
1642 win32_read_inferior_memory (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
)
1644 return child_xfer_memory (memaddr
, (char *) myaddr
, len
, 0, 0) != len
;
1647 /* Write memory to the inferior process. This should generally be
1648 called through write_inferior_memory, which handles breakpoint shadowing.
1649 Write LEN bytes from the buffer at MYADDR to MEMADDR.
1650 Returns 0 on success and errno on failure. */
1652 win32_write_inferior_memory (CORE_ADDR memaddr
, const unsigned char *myaddr
,
1655 return child_xfer_memory (memaddr
, (char *) myaddr
, len
, 1, 0) != len
;
1658 /* Send an interrupt request to the inferior process. */
1660 win32_request_interrupt (void)
1662 winapi_DebugBreakProcess DebugBreakProcess
;
1663 winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent
;
1666 HMODULE dll
= GetModuleHandle (_T("COREDLL.DLL"));
1668 HMODULE dll
= GetModuleHandle (_T("KERNEL32.DLL"));
1671 GenerateConsoleCtrlEvent
= GETPROCADDRESS (dll
, GenerateConsoleCtrlEvent
);
1673 if (GenerateConsoleCtrlEvent
!= NULL
1674 && GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT
, current_process_id
))
1677 /* GenerateConsoleCtrlEvent can fail if process id being debugged is
1678 not a process group id.
1679 Fallback to XP/Vista 'DebugBreakProcess', which generates a
1680 breakpoint exception in the interior process. */
1682 DebugBreakProcess
= GETPROCADDRESS (dll
, DebugBreakProcess
);
1684 if (DebugBreakProcess
!= NULL
1685 && DebugBreakProcess (current_process_handle
))
1688 /* Last resort, suspend all threads manually. */
1689 soft_interrupt_requested
= 1;
1694 win32_error_to_fileio_error (DWORD err
)
1698 case ERROR_BAD_PATHNAME
:
1699 case ERROR_FILE_NOT_FOUND
:
1700 case ERROR_INVALID_NAME
:
1701 case ERROR_PATH_NOT_FOUND
:
1702 return FILEIO_ENOENT
;
1704 case ERROR_IO_DEVICE
:
1705 case ERROR_OPEN_FAILED
:
1707 case ERROR_INVALID_HANDLE
:
1708 return FILEIO_EBADF
;
1709 case ERROR_ACCESS_DENIED
:
1710 case ERROR_SHARING_VIOLATION
:
1711 return FILEIO_EACCES
;
1712 case ERROR_NOACCESS
:
1713 return FILEIO_EFAULT
;
1715 return FILEIO_EBUSY
;
1716 case ERROR_ALREADY_EXISTS
:
1717 case ERROR_FILE_EXISTS
:
1718 return FILEIO_EEXIST
;
1719 case ERROR_BAD_DEVICE
:
1720 return FILEIO_ENODEV
;
1721 case ERROR_DIRECTORY
:
1722 return FILEIO_ENOTDIR
;
1723 case ERROR_FILENAME_EXCED_RANGE
:
1724 case ERROR_INVALID_DATA
:
1725 case ERROR_INVALID_PARAMETER
:
1726 case ERROR_NEGATIVE_SEEK
:
1727 return FILEIO_EINVAL
;
1728 case ERROR_TOO_MANY_OPEN_FILES
:
1729 return FILEIO_EMFILE
;
1730 case ERROR_HANDLE_DISK_FULL
:
1731 case ERROR_DISK_FULL
:
1732 return FILEIO_ENOSPC
;
1733 case ERROR_WRITE_PROTECT
:
1734 return FILEIO_EROFS
;
1735 case ERROR_NOT_SUPPORTED
:
1736 return FILEIO_ENOSYS
;
1739 return FILEIO_EUNKNOWN
;
1743 wince_hostio_last_error (char *buf
)
1745 DWORD winerr
= GetLastError ();
1746 int fileio_err
= win32_error_to_fileio_error (winerr
);
1747 sprintf (buf
, "F-1,%x", fileio_err
);
1751 static struct target_ops win32_target_ops
= {
1752 win32_create_inferior
,
1760 win32_fetch_inferior_registers
,
1761 win32_store_inferior_registers
,
1762 win32_read_inferior_memory
,
1763 win32_write_inferior_memory
,
1765 win32_request_interrupt
,
1769 win32_stopped_by_watchpoint
,
1770 win32_stopped_data_address
,
1775 wince_hostio_last_error
,
1777 hostio_last_error_from_errno
,
1781 /* Initialize the Win32 backend. */
1783 initialize_low (void)
1785 set_target_ops (&win32_target_ops
);
1786 if (the_low_target
.breakpoint
!= NULL
)
1787 set_breakpoint_data (the_low_target
.breakpoint
,
1788 the_low_target
.breakpoint_len
);
1789 the_low_target
.arch_setup ();