1 /* Target-vector operations for controlling win32 child processes, for GDB.
2 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Solutions, A Red Hat Company.
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 2 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 eve nthe 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, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 /* by Steve Chamberlain, sac@cygnus.com */
25 /* We assume we're being built with and will be used for cygwin. */
28 #include "frame.h" /* required by inferior.h */
33 #include "completer.h"
36 #include <sys/types.h>
41 #include <sys/cygwin.h>
46 #include "gdb_string.h"
47 #include "gdbthread.h"
49 #include <sys/param.h>
52 /* The ui's event loop. */
53 extern int (*ui_loop_hook
) (int signo
);
55 /* If we're not using the old Cygwin header file set, define the
56 following which never should have been in the generic Win32 API
57 headers in the first place since they were our own invention... */
58 #ifndef _GNU_H_WINDOWS_H
61 FLAG_TRACE_BIT
= 0x100,
62 CONTEXT_DEBUGGER
= (CONTEXT_FULL
| CONTEXT_FLOATING_POINT
)
65 #include <sys/procfs.h>
68 /* The string sent by cygwin when it processes a signal.
69 FIXME: This should be in a cygwin include file. */
70 #define CYGWIN_SIGNAL_STRING "cygwin: signal"
72 #define CHECK(x) check (x, __FILE__,__LINE__)
73 #define DEBUG_EXEC(x) if (debug_exec) printf x
74 #define DEBUG_EVENTS(x) if (debug_events) printf x
75 #define DEBUG_MEM(x) if (debug_memory) printf x
76 #define DEBUG_EXCEPT(x) if (debug_exceptions) printf x
78 /* Forward declaration */
79 extern struct target_ops child_ops
;
81 static void child_stop (void);
82 static int win32_child_thread_alive (ptid_t
);
83 void child_kill_inferior (void);
85 static int last_sig
= 0; /* Set if a signal was received from the
87 /* Thread information structure used to track information that is
88 not available in gdb's thread structure. */
89 typedef struct thread_info_struct
91 struct thread_info_struct
*next
;
101 static thread_info thread_head
;
103 /* The process and thread handles for the above context. */
105 static DEBUG_EVENT current_event
; /* The current debug event from
107 static HANDLE current_process_handle
; /* Currently executing process */
108 static thread_info
*current_thread
; /* Info on currently selected thread */
109 static DWORD main_thread_id
; /* Thread ID of the main thread */
111 /* Counts of things. */
112 static int exception_count
= 0;
113 static int event_count
= 0;
116 static int new_console
= 0;
117 static int new_group
= 1;
118 static int debug_exec
= 0; /* show execution */
119 static int debug_events
= 0; /* show events from kernel */
120 static int debug_memory
= 0; /* show target memory accesses */
121 static int debug_exceptions
= 0; /* show target exceptions */
123 /* This vector maps GDB's idea of a register's number into an address
124 in the win32 exception context vector.
126 It also contains the bit mask needed to load the register in question.
128 One day we could read a reg, we could inspect the context we
129 already have loaded, if it doesn't have the bit set that we need,
130 we read that set of registers in using GetThreadContext. If the
131 context already contains what we need, we just unpack it. Then to
132 write a register, first we have to ensure that the context contains
133 the other regs of the group, and then we copy the info in and set
136 #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
137 static const int mappings
[] =
139 context_offset (Eax
),
140 context_offset (Ecx
),
141 context_offset (Edx
),
142 context_offset (Ebx
),
143 context_offset (Esp
),
144 context_offset (Ebp
),
145 context_offset (Esi
),
146 context_offset (Edi
),
147 context_offset (Eip
),
148 context_offset (EFlags
),
149 context_offset (SegCs
),
150 context_offset (SegSs
),
151 context_offset (SegDs
),
152 context_offset (SegEs
),
153 context_offset (SegFs
),
154 context_offset (SegGs
),
155 context_offset (FloatSave
.RegisterArea
[0 * 10]),
156 context_offset (FloatSave
.RegisterArea
[1 * 10]),
157 context_offset (FloatSave
.RegisterArea
[2 * 10]),
158 context_offset (FloatSave
.RegisterArea
[3 * 10]),
159 context_offset (FloatSave
.RegisterArea
[4 * 10]),
160 context_offset (FloatSave
.RegisterArea
[5 * 10]),
161 context_offset (FloatSave
.RegisterArea
[6 * 10]),
162 context_offset (FloatSave
.RegisterArea
[7 * 10]),
163 context_offset (FloatSave
.ControlWord
),
164 context_offset (FloatSave
.StatusWord
),
165 context_offset (FloatSave
.TagWord
),
166 context_offset (FloatSave
.ErrorSelector
),
167 context_offset (FloatSave
.ErrorOffset
),
168 context_offset (FloatSave
.DataSelector
),
169 context_offset (FloatSave
.DataOffset
),
170 context_offset (FloatSave
.ErrorSelector
)
173 #undef context_offset
175 /* This vector maps the target's idea of an exception (extracted
176 from the DEBUG_EVENT structure) to GDB's idea. */
178 struct xlate_exception
181 enum target_signal us
;
184 static const struct xlate_exception
187 {EXCEPTION_ACCESS_VIOLATION
, TARGET_SIGNAL_SEGV
},
188 {STATUS_STACK_OVERFLOW
, TARGET_SIGNAL_SEGV
},
189 {EXCEPTION_BREAKPOINT
, TARGET_SIGNAL_TRAP
},
190 {DBG_CONTROL_C
, TARGET_SIGNAL_INT
},
191 {EXCEPTION_SINGLE_STEP
, TARGET_SIGNAL_TRAP
},
194 /* Find a thread record given a thread id.
195 If get_context then also retrieve the context for this
198 thread_rec (DWORD id
, int get_context
)
202 for (th
= &thread_head
; (th
= th
->next
) != NULL
;)
205 if (!th
->suspend_count
&& get_context
)
207 if (get_context
> 0 && id
!= current_event
.dwThreadId
)
208 th
->suspend_count
= SuspendThread (th
->h
) + 1;
209 else if (get_context
< 0)
210 th
->suspend_count
= -1;
212 th
->context
.ContextFlags
= CONTEXT_DEBUGGER
;
213 GetThreadContext (th
->h
, &th
->context
);
221 /* Add a thread to the thread list */
223 child_add_thread (DWORD id
, HANDLE h
)
227 if ((th
= thread_rec (id
, FALSE
)))
230 th
= (thread_info
*) xmalloc (sizeof (*th
));
231 memset (th
, 0, sizeof (*th
));
234 th
->next
= thread_head
.next
;
235 thread_head
.next
= th
;
236 add_thread (pid_to_ptid (id
));
240 /* Clear out any old thread list and reintialize it to a
243 child_init_thread_list (void)
245 thread_info
*th
= &thread_head
;
247 DEBUG_EVENTS (("gdb: child_init_thread_list\n"));
249 while (th
->next
!= NULL
)
251 thread_info
*here
= th
->next
;
252 th
->next
= here
->next
;
253 (void) CloseHandle (here
->h
);
258 /* Delete a thread from the list of threads */
260 child_delete_thread (DWORD id
)
265 printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id
)));
266 delete_thread (pid_to_ptid (id
));
268 for (th
= &thread_head
;
269 th
->next
!= NULL
&& th
->next
->id
!= id
;
273 if (th
->next
!= NULL
)
275 thread_info
*here
= th
->next
;
276 th
->next
= here
->next
;
277 CloseHandle (here
->h
);
283 check (BOOL ok
, const char *file
, int line
)
286 printf_filtered ("error return %s:%d was %lu\n", file
, line
, GetLastError ());
290 do_child_fetch_inferior_registers (int r
)
292 char *context_offset
= ((char *) ¤t_thread
->context
) + mappings
[r
];
296 l
= *((long *) context_offset
) & 0xffff;
297 supply_register (r
, (char *) &l
);
299 else if (r
== FOP_REGNUM
)
301 l
= (*((long *) context_offset
) >> 16) & ((1 << 11) - 1);
302 supply_register (r
, (char *) &l
);
305 supply_register (r
, context_offset
);
308 for (r
= 0; r
< NUM_REGS
; r
++)
309 do_child_fetch_inferior_registers (r
);
314 child_fetch_inferior_registers (int r
)
316 current_thread
= thread_rec (PIDGET (inferior_ptid
), TRUE
);
317 do_child_fetch_inferior_registers (r
);
321 do_child_store_inferior_registers (int r
)
324 read_register_gen (r
, ((char *) ¤t_thread
->context
) + mappings
[r
]);
327 for (r
= 0; r
< NUM_REGS
; r
++)
328 do_child_store_inferior_registers (r
);
332 /* Store a new register value into the current thread context */
334 child_store_inferior_registers (int r
)
336 current_thread
= thread_rec (PIDGET (inferior_ptid
), TRUE
);
337 do_child_store_inferior_registers (r
);
340 static int psapi_loaded
= 0;
341 static HMODULE psapi_module_handle
= NULL
;
342 static BOOL
WINAPI (*psapi_EnumProcessModules
) (HANDLE
, HMODULE
*, DWORD
, LPDWORD
) = NULL
;
343 static BOOL
WINAPI (*psapi_GetModuleInformation
) (HANDLE
, HMODULE
, LPMODULEINFO
, DWORD
) = NULL
;
344 static DWORD
WINAPI (*psapi_GetModuleFileNameExA
) (HANDLE
, HMODULE
, LPSTR
, DWORD
) = NULL
;
347 psapi_get_dll_name (DWORD BaseAddress
, char *dll_name_ret
)
353 HMODULE
*DllHandle
= dh_buf
;
358 psapi_EnumProcessModules
== NULL
||
359 psapi_GetModuleInformation
== NULL
||
360 psapi_GetModuleFileNameExA
== NULL
)
365 psapi_module_handle
= LoadLibrary ("psapi.dll");
366 if (!psapi_module_handle
)
368 /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */
371 psapi_EnumProcessModules
= GetProcAddress (psapi_module_handle
, "EnumProcessModules");
372 psapi_GetModuleInformation
= GetProcAddress (psapi_module_handle
, "GetModuleInformation");
373 psapi_GetModuleFileNameExA
= (void *) GetProcAddress (psapi_module_handle
,
374 "GetModuleFileNameExA");
375 if (psapi_EnumProcessModules
== NULL
||
376 psapi_GetModuleInformation
== NULL
||
377 psapi_GetModuleFileNameExA
== NULL
)
382 ok
= (*psapi_EnumProcessModules
) (current_process_handle
,
387 if (!ok
|| !cbNeeded
)
390 DllHandle
= (HMODULE
*) alloca (cbNeeded
);
394 ok
= (*psapi_EnumProcessModules
) (current_process_handle
,
401 for (i
= 0; i
< (int) (cbNeeded
/ sizeof (HMODULE
)); i
++)
403 if (!(*psapi_GetModuleInformation
) (current_process_handle
,
407 error ("Can't get module info");
409 len
= (*psapi_GetModuleFileNameExA
) (current_process_handle
,
414 error ("Error getting dll name: %u\n", GetLastError ());
416 if ((DWORD
) (mi
.lpBaseOfDll
) == BaseAddress
)
421 dll_name_ret
[0] = '\0';
425 /* Encapsulate the information required in a call to
426 symbol_file_add_args */
427 struct safe_symbol_file_add_args
431 struct section_addr_info
*addrs
;
434 struct ui_file
*err
, *out
;
438 /* Maintain a linked list of "so" information. */
441 struct so_stuff
*next
, **last
;
445 } solib_start
, *solib_end
;
447 /* Call symbol_file_add with stderr redirected. We don't care if there
450 safe_symbol_file_add_stub (void *argv
)
452 #define p ((struct safe_symbol_file_add_args *)argv)
453 struct so_stuff
*so
= &solib_start
;
455 while ((so
= so
->next
))
456 if (so
->loaded
&& strcasecmp (so
->name
, p
->name
) == 0)
458 p
->ret
= symbol_file_add (p
->name
, p
->from_tty
, p
->addrs
, p
->mainline
, p
->flags
);
463 /* Restore gdb's stderr after calling symbol_file_add */
465 safe_symbol_file_add_cleanup (void *p
)
467 #define sp ((struct safe_symbol_file_add_args *)p)
468 gdb_flush (gdb_stderr
);
469 gdb_flush (gdb_stdout
);
470 /* ui_file_delete (gdb_stderr); */
471 ui_file_delete (gdb_stdout
);
472 /* gdb_stderr = sp->err; */
473 gdb_stdout
= sp
->out
;
477 /* symbol_file_add wrapper that prevents errors from being displayed. */
478 static struct objfile
*
479 safe_symbol_file_add (char *name
, int from_tty
,
480 struct section_addr_info
*addrs
,
481 int mainline
, int flags
)
483 struct safe_symbol_file_add_args p
;
484 struct cleanup
*cleanup
;
486 cleanup
= make_cleanup (safe_symbol_file_add_cleanup
, &p
);
490 gdb_flush (gdb_stderr
);
491 gdb_flush (gdb_stdout
);
492 /* gdb_stderr = ui_file_new (); */
493 gdb_stdout
= ui_file_new ();
495 p
.from_tty
= from_tty
;
497 p
.mainline
= mainline
;
499 catch_errors (safe_symbol_file_add_stub
, &p
, "", RETURN_MASK_ERROR
);
501 do_cleanups (cleanup
);
505 /* Remember the maximum DLL length for printing in info dll command. */
506 int max_dll_name_len
;
509 register_loaded_dll (const char *name
, DWORD load_addr
)
512 char ppath
[MAX_PATH
+ 1];
513 cygwin_conv_to_posix_path (name
, ppath
);
514 so
= (struct so_stuff
*) xmalloc (sizeof (struct so_stuff
) + strlen (ppath
) + 8 + 1);
516 so
->load_addr
= load_addr
;
517 strcpy (so
->name
, ppath
);
519 solib_end
->next
= so
;
524 /* Wait for child to do something. Return pid of child, or -1 in case
525 of error; store status through argument pointer OURSTATUS. */
527 handle_load_dll (void *dummy ATTRIBUTE_UNUSED
)
529 LOAD_DLL_DEBUG_INFO
*event
= ¤t_event
.u
.LoadDll
;
532 char dll_buf
[MAX_PATH
+ 1];
533 char *dll_name
= NULL
;
537 dll_buf
[0] = dll_buf
[sizeof (dll_buf
) - 1] = '\0';
539 if (!psapi_get_dll_name ((DWORD
) (event
->lpBaseOfDll
), dll_buf
))
540 dll_buf
[0] = dll_buf
[sizeof (dll_buf
) - 1] = '\0';
544 /* Attempt to read the name of the dll that was detected.
545 This is documented to work only when actively debugging
546 a program. It will not work for attached processes. */
547 if (dll_name
== NULL
|| *dll_name
== '\0')
549 DWORD size
= event
->fUnicode
? sizeof (WCHAR
) : sizeof (char);
553 ReadProcessMemory (current_process_handle
,
554 (LPCVOID
) event
->lpImageName
,
555 (char *) &dll_name_ptr
,
556 sizeof (dll_name_ptr
), &done
);
558 /* See if we could read the address of a string, and that the
559 address isn't null. */
561 if (done
!= sizeof (dll_name_ptr
) || !dll_name_ptr
)
566 ReadProcessMemory (current_process_handle
,
567 (LPCVOID
) (dll_name_ptr
+ len
* size
),
573 while ((b
[0] != 0 || b
[size
- 1] != 0) && done
== size
);
575 dll_name
= alloca (len
);
579 WCHAR
*unicode_dll_name
= (WCHAR
*) alloca (len
* sizeof (WCHAR
));
580 ReadProcessMemory (current_process_handle
,
581 (LPCVOID
) dll_name_ptr
,
583 len
* sizeof (WCHAR
),
586 WideCharToMultiByte (CP_ACP
, 0,
587 unicode_dll_name
, len
,
588 dll_name
, len
, 0, 0);
592 ReadProcessMemory (current_process_handle
,
593 (LPCVOID
) dll_name_ptr
,
603 while ((p
= strchr (dll_name
, '\\')))
606 register_loaded_dll (dll_name
, (DWORD
) event
->lpBaseOfDll
+ 0x1000);
607 len
= strlen (dll_name
);
608 if (len
> max_dll_name_len
)
609 max_dll_name_len
= len
;
614 /* Return name of last loaded DLL. */
616 child_solib_loaded_library_pathname (int pid ATTRIBUTE_UNUSED
)
618 return !solib_end
|| !solib_end
->name
[0] ? NULL
: solib_end
->name
;
621 /* Clear list of loaded DLLs. */
623 child_clear_solibs (void)
625 struct so_stuff
*so
, *so1
= solib_start
.next
;
627 while ((so
= so1
) != NULL
)
633 solib_start
.next
= NULL
;
634 solib_end
= &solib_start
;
635 max_dll_name_len
= sizeof ("DLL Name") - 1;
638 /* Add DLL symbol information. */
640 solib_symbols_add (char *name
, int from_tty
, CORE_ADDR load_addr
)
642 struct section_addr_info section_addrs
;
644 /* The symbols in a dll are offset by 0x1000, which is the
645 the offset from 0 of the first byte in an image - because
646 of the file header and the section alignment. */
648 if (!name
|| !name
[0])
651 memset (§ion_addrs
, 0, sizeof (section_addrs
));
652 section_addrs
.other
[0].name
= ".text";
653 section_addrs
.other
[0].addr
= load_addr
;
654 safe_symbol_file_add (name
, from_tty
, NULL
, 0, OBJF_SHARED
);
659 /* Load DLL symbol info. */
661 dll_symbol_command (char *args
, int from_tty
)
667 error ("dll-symbols requires a file name");
670 if (n
> 4 && strcasecmp (args
+ n
- 4, ".dll") != 0)
672 char *newargs
= (char *) alloca (n
+ 4 + 1);
673 strcpy (newargs
, args
);
674 strcat (newargs
, ".dll");
678 safe_symbol_file_add (args
, from_tty
, NULL
, 0, OBJF_SHARED
| OBJF_USERLOADED
);
681 /* List currently loaded DLLs. */
683 info_dll_command (char *ignore ATTRIBUTE_UNUSED
, int from_tty ATTRIBUTE_UNUSED
)
685 struct so_stuff
*so
= &solib_start
;
690 printf ("%*s Load Address\n", -max_dll_name_len
, "DLL Name");
691 while ((so
= so
->next
) != NULL
)
692 printf_filtered ("%*s %08lx\n", -max_dll_name_len
, so
->name
, so
->load_addr
);
697 /* Handle DEBUG_STRING output from child process.
698 Cygwin prepends its messages with a "cygwin:". Interpret this as
699 a Cygwin signal. Otherwise just print the string as a warning. */
701 handle_output_debug_string (struct target_waitstatus
*ourstatus
)
706 if (!target_read_string
707 ((CORE_ADDR
) current_event
.u
.DebugString
.lpDebugStringData
, &s
, 1024, 0)
711 if (strncmp (s
, CYGWIN_SIGNAL_STRING
, sizeof (CYGWIN_SIGNAL_STRING
) - 1) != 0)
713 if (strncmp (s
, "cYg", 3) != 0)
719 int sig
= strtol (s
+ sizeof (CYGWIN_SIGNAL_STRING
) - 1, &p
, 0);
720 gotasig
= target_signal_from_host (sig
);
721 ourstatus
->value
.sig
= gotasig
;
723 ourstatus
->kind
= TARGET_WAITKIND_STOPPED
;
731 handle_exception (struct target_waitstatus
*ourstatus
)
734 DWORD code
= current_event
.u
.Exception
.ExceptionRecord
.ExceptionCode
;
736 ourstatus
->kind
= TARGET_WAITKIND_STOPPED
;
738 /* Record the context of the current thread */
739 th
= thread_rec (current_event
.dwThreadId
, -1);
743 case EXCEPTION_ACCESS_VIOLATION
:
744 DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08lx\n",
745 (DWORD
) current_event
.u
.Exception
.ExceptionRecord
.ExceptionAddress
));
746 ourstatus
->value
.sig
= TARGET_SIGNAL_SEGV
;
749 case STATUS_FLOAT_UNDERFLOW
:
750 case STATUS_FLOAT_DIVIDE_BY_ZERO
:
751 case STATUS_FLOAT_OVERFLOW
:
752 case STATUS_INTEGER_DIVIDE_BY_ZERO
:
753 DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08lx\n",
754 (DWORD
) current_event
.u
.Exception
.ExceptionRecord
.ExceptionAddress
));
755 ourstatus
->value
.sig
= TARGET_SIGNAL_FPE
;
758 case STATUS_STACK_OVERFLOW
:
759 DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08lx\n",
760 (DWORD
) current_event
.u
.Exception
.ExceptionRecord
.ExceptionAddress
));
761 ourstatus
->value
.sig
= TARGET_SIGNAL_SEGV
;
763 case EXCEPTION_BREAKPOINT
:
764 DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08lx\n",
765 (DWORD
) current_event
.u
.Exception
.ExceptionRecord
.ExceptionAddress
));
766 ourstatus
->value
.sig
= TARGET_SIGNAL_TRAP
;
769 DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08lx\n",
770 (DWORD
) current_event
.u
.Exception
.ExceptionRecord
.ExceptionAddress
));
771 ourstatus
->value
.sig
= TARGET_SIGNAL_INT
;
772 last_sig
= SIGINT
; /* FIXME - should check pass state */
774 case EXCEPTION_SINGLE_STEP
:
775 DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08lx\n",
776 (DWORD
) current_event
.u
.Exception
.ExceptionRecord
.ExceptionAddress
));
777 ourstatus
->value
.sig
= TARGET_SIGNAL_TRAP
;
779 case EXCEPTION_ILLEGAL_INSTRUCTION
:
780 DEBUG_EXCEPT (("gdb: Target exception SINGLE_ILL at 0x%08lx\n",
781 (DWORD
) current_event
.u
.Exception
.ExceptionRecord
.ExceptionAddress
));
782 ourstatus
->value
.sig
= TARGET_SIGNAL_ILL
;
786 if (current_event
.u
.Exception
.dwFirstChance
)
788 printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n",
789 current_event
.u
.Exception
.ExceptionRecord
.ExceptionCode
,
790 (DWORD
) current_event
.u
.Exception
.ExceptionRecord
.ExceptionAddress
);
791 ourstatus
->value
.sig
= TARGET_SIGNAL_UNKNOWN
;
798 /* Resume all artificially suspended threads if we are continuing
801 child_continue (DWORD continue_status
, int id
)
807 DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, DBG_CONTINUE);\n",
808 current_event
.dwProcessId
, current_event
.dwThreadId
));
809 res
= ContinueDebugEvent (current_event
.dwProcessId
,
810 current_event
.dwThreadId
,
814 for (th
= &thread_head
; (th
= th
->next
) != NULL
;)
815 if (((id
== -1) || (id
== (int) th
->id
)) && th
->suspend_count
)
817 for (i
= 0; i
< th
->suspend_count
; i
++)
818 (void) ResumeThread (th
->h
);
819 th
->suspend_count
= 0;
825 /* Get the next event from the child. Return 1 if the event requires
826 handling by WFI (or whatever).
829 get_child_debug_event (int pid ATTRIBUTE_UNUSED
, struct target_waitstatus
*ourstatus
)
832 DWORD continue_status
, event_code
;
833 thread_info
*th
= NULL
;
834 static thread_info dummy_thread_info
;
839 if (!(debug_event
= WaitForDebugEvent (¤t_event
, 1000)))
843 continue_status
= DBG_CONTINUE
;
845 event_code
= current_event
.dwDebugEventCode
;
846 ourstatus
->kind
= TARGET_WAITKIND_SPURIOUS
;
850 case CREATE_THREAD_DEBUG_EVENT
:
851 DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
852 (unsigned) current_event
.dwProcessId
,
853 (unsigned) current_event
.dwThreadId
,
854 "CREATE_THREAD_DEBUG_EVENT"));
855 /* Record the existence of this thread */
856 th
= child_add_thread (current_event
.dwThreadId
,
857 current_event
.u
.CreateThread
.hThread
);
859 printf_unfiltered ("[New %s]\n",
861 pid_to_ptid (current_event
.dwThreadId
)));
862 retval
= current_event
.dwThreadId
;
865 case EXIT_THREAD_DEBUG_EVENT
:
866 DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
867 (unsigned) current_event
.dwProcessId
,
868 (unsigned) current_event
.dwThreadId
,
869 "EXIT_THREAD_DEBUG_EVENT"));
870 child_delete_thread (current_event
.dwThreadId
);
871 th
= &dummy_thread_info
;
874 case CREATE_PROCESS_DEBUG_EVENT
:
875 DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
876 (unsigned) current_event
.dwProcessId
,
877 (unsigned) current_event
.dwThreadId
,
878 "CREATE_PROCESS_DEBUG_EVENT"));
879 CloseHandle (current_event
.u
.CreateProcessInfo
.hFile
);
880 current_process_handle
= current_event
.u
.CreateProcessInfo
.hProcess
;
882 main_thread_id
= current_event
.dwThreadId
;
883 /* Add the main thread */
885 th
= child_add_thread (current_event
.dwProcessId
,
886 current_event
.u
.CreateProcessInfo
.hProcess
);
888 th
= child_add_thread (main_thread_id
,
889 current_event
.u
.CreateProcessInfo
.hThread
);
890 retval
= ourstatus
->value
.related_pid
= current_event
.dwThreadId
;
893 case EXIT_PROCESS_DEBUG_EVENT
:
894 DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
895 (unsigned) current_event
.dwProcessId
,
896 (unsigned) current_event
.dwThreadId
,
897 "EXIT_PROCESS_DEBUG_EVENT"));
898 ourstatus
->kind
= TARGET_WAITKIND_EXITED
;
899 ourstatus
->value
.integer
= current_event
.u
.ExitProcess
.dwExitCode
;
900 CloseHandle (current_process_handle
);
901 retval
= main_thread_id
;
904 case LOAD_DLL_DEBUG_EVENT
:
905 DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
906 (unsigned) current_event
.dwProcessId
,
907 (unsigned) current_event
.dwThreadId
,
908 "LOAD_DLL_DEBUG_EVENT"));
909 CloseHandle (current_event
.u
.LoadDll
.hFile
);
910 catch_errors (handle_load_dll
, NULL
, (char *) "", RETURN_MASK_ALL
);
911 registers_changed (); /* mark all regs invalid */
912 ourstatus
->kind
= TARGET_WAITKIND_LOADED
;
913 ourstatus
->value
.integer
= 0;
914 retval
= main_thread_id
;
917 case UNLOAD_DLL_DEBUG_EVENT
:
918 DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
919 (unsigned) current_event
.dwProcessId
,
920 (unsigned) current_event
.dwThreadId
,
921 "UNLOAD_DLL_DEBUG_EVENT"));
922 break; /* FIXME: don't know what to do here */
924 case EXCEPTION_DEBUG_EVENT
:
925 DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
926 (unsigned) current_event
.dwProcessId
,
927 (unsigned) current_event
.dwThreadId
,
928 "EXCEPTION_DEBUG_EVENT"));
929 if (handle_exception (ourstatus
))
930 retval
= current_event
.dwThreadId
;
933 case OUTPUT_DEBUG_STRING_EVENT
: /* message from the kernel */
934 DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
935 (unsigned) current_event
.dwProcessId
,
936 (unsigned) current_event
.dwThreadId
,
937 "OUTPUT_DEBUG_STRING_EVENT"));
938 if (handle_output_debug_string (ourstatus
))
939 retval
= main_thread_id
;
943 printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n",
944 (DWORD
) current_event
.dwProcessId
,
945 (DWORD
) current_event
.dwThreadId
);
946 printf_unfiltered (" unknown event code %ld\n",
947 current_event
.dwDebugEventCode
);
952 CHECK (child_continue (continue_status
, -1));
955 current_thread
= th
? : thread_rec (current_event
.dwThreadId
, TRUE
);
956 inferior_ptid
= pid_to_ptid (retval
);
963 /* Wait for interesting events to occur in the target process. */
965 child_wait (ptid_t ptid
, struct target_waitstatus
*ourstatus
)
967 int pid
= PIDGET (ptid
);
969 /* We loop when we get a non-standard exception rather than return
970 with a SPURIOUS because resume can try and step or modify things,
971 which needs a current_thread->h. But some of these exceptions mark
972 the birth or death of threads, which mean that the current thread
973 isn't necessarily what you think it is. */
977 int retval
= get_child_debug_event (pid
, ourstatus
);
979 return pid_to_ptid (retval
);
984 if (ui_loop_hook
!= NULL
)
985 detach
= ui_loop_hook (0);
988 child_kill_inferior ();
994 do_initial_child_stuff (DWORD pid
)
996 extern int stop_after_trap
;
1000 exception_count
= 0;
1001 current_event
.dwProcessId
= pid
;
1002 memset (¤t_event
, 0, sizeof (current_event
));
1003 push_target (&child_ops
);
1004 child_init_thread_list ();
1005 child_clear_solibs ();
1006 clear_proceed_status ();
1007 init_wait_for_inferior ();
1009 target_terminal_init ();
1010 target_terminal_inferior ();
1014 stop_after_trap
= 1;
1015 wait_for_inferior ();
1016 if (stop_signal
!= TARGET_SIGNAL_TRAP
)
1017 resume (0, stop_signal
);
1021 stop_after_trap
= 0;
1025 /* Since Windows XP, detaching from a process is supported by Windows.
1026 The following code tries loading the appropriate functions dynamically.
1027 If loading these functions succeeds use them to actually detach from
1028 the inferior process, otherwise behave as usual, pretending that
1029 detach has worked. */
1030 static BOOL
WINAPI (*DebugSetProcessKillOnExit
)(BOOL
);
1031 static BOOL
WINAPI (*DebugActiveProcessStop
)(DWORD
);
1034 has_detach_ability ()
1036 static HMODULE kernel32
= NULL
;
1039 kernel32
= LoadLibrary ("kernel32.dll");
1042 if (!DebugSetProcessKillOnExit
)
1043 DebugSetProcessKillOnExit
= GetProcAddress (kernel32
,
1044 "DebugSetProcessKillOnExit");
1045 if (!DebugActiveProcessStop
)
1046 DebugActiveProcessStop
= GetProcAddress (kernel32
,
1047 "DebugActiveProcessStop");
1048 if (DebugSetProcessKillOnExit
&& DebugActiveProcessStop
)
1054 /* Attach to process PID, then initialize for debugging it. */
1056 child_attach (char *args
, int from_tty
)
1062 error_no_arg ("process-id to attach");
1064 pid
= strtoul (args
, 0, 0);
1065 ok
= DebugActiveProcess (pid
);
1068 error ("Can't attach to process.");
1070 if (has_detach_ability ())
1073 DebugSetProcessKillOnExit (FALSE
);
1078 char *exec_file
= (char *) get_exec_file (0);
1081 printf_unfiltered ("Attaching to program `%s', %s\n", exec_file
,
1082 target_pid_to_str (pid_to_ptid (pid
)));
1084 printf_unfiltered ("Attaching to %s\n",
1085 target_pid_to_str (pid_to_ptid (pid
)));
1087 gdb_flush (gdb_stdout
);
1090 do_initial_child_stuff (pid
);
1091 target_terminal_ours ();
1095 child_detach (char *args ATTRIBUTE_UNUSED
, int from_tty
)
1099 if (has_detach_ability ())
1101 delete_command (NULL
, 0);
1102 child_continue (DBG_CONTINUE
, -1);
1103 if (!DebugActiveProcessStop (current_event
.dwProcessId
))
1105 error ("Can't detach process %lu (error %lu)",
1106 current_event
.dwProcessId
, GetLastError ());
1109 DebugSetProcessKillOnExit (FALSE
);
1111 if (detached
&& from_tty
)
1113 char *exec_file
= get_exec_file (0);
1116 printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file
,
1117 current_event
.dwProcessId
);
1118 gdb_flush (gdb_stdout
);
1120 inferior_ptid
= null_ptid
;
1121 unpush_target (&child_ops
);
1124 /* Print status information about what we're accessing. */
1127 child_files_info (struct target_ops
*ignore ATTRIBUTE_UNUSED
)
1129 printf_unfiltered ("\tUsing the running image of %s %s.\n",
1130 attach_flag
? "attached" : "child", target_pid_to_str (inferior_ptid
));
1135 child_open (char *arg ATTRIBUTE_UNUSED
, int from_tty ATTRIBUTE_UNUSED
)
1137 error ("Use the \"run\" command to start a Unix child process.");
1140 /* Start an inferior win32 child process and sets inferior_ptid to its pid.
1141 EXEC_FILE is the file to run.
1142 ALLARGS is a string containing the arguments to the program.
1143 ENV is the environment vector to pass. Errors reported with error(). */
1146 child_create_inferior (char *exec_file
, char *allargs
, char **env
)
1148 char real_path
[MAXPATHLEN
];
1154 PROCESS_INFORMATION pi
;
1160 error ("No executable specified, use `target exec'.\n");
1162 memset (&si
, 0, sizeof (si
));
1163 si
.cb
= sizeof (si
);
1165 cygwin_conv_to_win32_path (exec_file
, real_path
);
1167 flags
= DEBUG_ONLY_THIS_PROCESS
;
1170 flags
|= CREATE_NEW_PROCESS_GROUP
;
1173 flags
|= CREATE_NEW_CONSOLE
;
1175 args
= alloca (strlen (real_path
) + strlen (allargs
) + 2);
1177 strcpy (args
, real_path
);
1180 strcat (args
, allargs
);
1182 /* Prepare the environment vars for CreateProcess. */
1184 /* This code use to assume all env vars were file names and would
1185 translate them all to win32 style. That obviously doesn't work in the
1186 general case. The current rule is that we only translate PATH.
1187 We need to handle PATH because we're about to call CreateProcess and
1188 it uses PATH to find DLL's. Fortunately PATH has a well-defined value
1189 in both posix and win32 environments. cygwin.dll will change it back
1190 to posix style if necessary. */
1192 static const char *conv_path_names
[] =
1198 /* CreateProcess takes the environment list as a null terminated set of
1199 strings (i.e. two nulls terminate the list). */
1201 /* Get total size for env strings. */
1202 for (envlen
= 0, i
= 0; env
[i
] && *env
[i
]; i
++)
1206 for (j
= 0; conv_path_names
[j
]; j
++)
1208 len
= strlen (conv_path_names
[j
]);
1209 if (strncmp (conv_path_names
[j
], env
[i
], len
) == 0)
1211 if (cygwin_posix_path_list_p (env
[i
] + len
))
1213 + cygwin_posix_to_win32_path_list_buf_size (env
[i
] + len
);
1215 envlen
+= strlen (env
[i
]) + 1;
1219 if (conv_path_names
[j
] == NULL
)
1220 envlen
+= strlen (env
[i
]) + 1;
1223 winenv
= alloca (envlen
+ 1);
1225 /* Copy env strings into new buffer. */
1226 for (temp
= winenv
, i
= 0; env
[i
] && *env
[i
]; i
++)
1230 for (j
= 0; conv_path_names
[j
]; j
++)
1232 len
= strlen (conv_path_names
[j
]);
1233 if (strncmp (conv_path_names
[j
], env
[i
], len
) == 0)
1235 if (cygwin_posix_path_list_p (env
[i
] + len
))
1237 memcpy (temp
, env
[i
], len
);
1238 cygwin_posix_to_win32_path_list (env
[i
] + len
, temp
+ len
);
1241 strcpy (temp
, env
[i
]);
1245 if (conv_path_names
[j
] == NULL
)
1246 strcpy (temp
, env
[i
]);
1248 temp
+= strlen (temp
) + 1;
1251 /* Final nil string to terminate new env. */
1255 ret
= CreateProcess (0,
1256 args
, /* command line */
1257 NULL
, /* Security */
1259 TRUE
, /* inherit handles */
1260 flags
, /* start flags */
1262 NULL
, /* current directory */
1266 error ("Error creating process %s, (error %d)\n", exec_file
, GetLastError ());
1268 CloseHandle (pi
.hThread
);
1269 CloseHandle (pi
.hProcess
);
1270 do_initial_child_stuff (pi
.dwProcessId
);
1272 /* child_continue (DBG_CONTINUE, -1); */
1273 proceed ((CORE_ADDR
) - 1, TARGET_SIGNAL_0
, 0);
1277 child_mourn_inferior (void)
1279 (void) child_continue (DBG_CONTINUE
, -1);
1280 unpush_target (&child_ops
);
1281 generic_mourn_inferior ();
1284 /* Send a SIGINT to the process group. This acts just like the user typed a
1285 ^C on the controlling terminal. */
1290 DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n"));
1291 CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT
, current_event
.dwProcessId
));
1292 registers_changed (); /* refresh register state */
1296 child_xfer_memory (CORE_ADDR memaddr
, char *our
, int len
,
1297 int write
, struct mem_attrib
*mem ATTRIBUTE_UNUSED
,
1298 struct target_ops
*target ATTRIBUTE_UNUSED
)
1303 DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n",
1304 len
, (DWORD
) memaddr
));
1305 WriteProcessMemory (current_process_handle
, (LPVOID
) memaddr
, our
,
1307 FlushInstructionCache (current_process_handle
, (LPCVOID
) memaddr
, len
);
1311 DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n",
1312 len
, (DWORD
) memaddr
));
1313 ReadProcessMemory (current_process_handle
, (LPCVOID
) memaddr
, our
, len
,
1320 child_kill_inferior (void)
1322 CHECK (TerminateProcess (current_process_handle
, 0));
1326 if (!child_continue (DBG_CONTINUE
, -1))
1328 if (!WaitForDebugEvent (¤t_event
, INFINITE
))
1330 if (current_event
.dwDebugEventCode
== EXIT_PROCESS_DEBUG_EVENT
)
1334 CHECK (CloseHandle (current_process_handle
));
1336 /* this may fail in an attached process so don't check. */
1337 (void) CloseHandle (current_thread
->h
);
1338 target_mourn_inferior (); /* or just child_mourn_inferior? */
1342 child_resume (ptid_t ptid
, int step
, enum target_signal sig
)
1345 DWORD continue_status
= last_sig
> 0 && last_sig
< NSIG
?
1346 DBG_EXCEPTION_NOT_HANDLED
: DBG_CONTINUE
;
1347 int pid
= PIDGET (ptid
);
1351 DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n",
1354 /* Get context for currently selected thread */
1355 th
= thread_rec (current_event
.dwThreadId
, FALSE
);
1360 /* Single step by setting t bit */
1361 child_fetch_inferior_registers (PS_REGNUM
);
1362 th
->context
.EFlags
|= FLAG_TRACE_BIT
;
1365 if (th
->context
.ContextFlags
)
1367 CHECK (SetThreadContext (th
->h
, &th
->context
));
1368 th
->context
.ContextFlags
= 0;
1372 /* Allow continuing with the same signal that interrupted us.
1373 Otherwise complain. */
1375 child_continue (continue_status
, pid
);
1379 child_prepare_to_store (void)
1381 /* Do nothing, since we can store individual regs */
1385 child_can_run (void)
1391 child_close (int x ATTRIBUTE_UNUSED
)
1393 DEBUG_EVENTS (("gdb: child_close, inferior_ptid=%d\n",
1394 PIDGET (inferior_ptid
)));
1397 struct target_ops child_ops
;
1400 init_child_ops (void)
1402 child_ops
.to_shortname
= "child";
1403 child_ops
.to_longname
= "Win32 child process";
1404 child_ops
.to_doc
= "Win32 child process (started by the \"run\" command).";
1405 child_ops
.to_open
= child_open
;
1406 child_ops
.to_close
= child_close
;
1407 child_ops
.to_attach
= child_attach
;
1408 child_ops
.to_detach
= child_detach
;
1409 child_ops
.to_resume
= child_resume
;
1410 child_ops
.to_wait
= child_wait
;
1411 child_ops
.to_fetch_registers
= child_fetch_inferior_registers
;
1412 child_ops
.to_store_registers
= child_store_inferior_registers
;
1413 child_ops
.to_prepare_to_store
= child_prepare_to_store
;
1414 child_ops
.to_xfer_memory
= child_xfer_memory
;
1415 child_ops
.to_files_info
= child_files_info
;
1416 child_ops
.to_insert_breakpoint
= memory_insert_breakpoint
;
1417 child_ops
.to_remove_breakpoint
= memory_remove_breakpoint
;
1418 child_ops
.to_terminal_init
= terminal_init_inferior
;
1419 child_ops
.to_terminal_inferior
= terminal_inferior
;
1420 child_ops
.to_terminal_ours_for_output
= terminal_ours_for_output
;
1421 child_ops
.to_terminal_ours
= terminal_ours
;
1422 child_ops
.to_terminal_info
= child_terminal_info
;
1423 child_ops
.to_kill
= child_kill_inferior
;
1424 child_ops
.to_load
= 0;
1425 child_ops
.to_lookup_symbol
= 0;
1426 child_ops
.to_create_inferior
= child_create_inferior
;
1427 child_ops
.to_mourn_inferior
= child_mourn_inferior
;
1428 child_ops
.to_can_run
= child_can_run
;
1429 child_ops
.to_notice_signals
= 0;
1430 child_ops
.to_thread_alive
= win32_child_thread_alive
;
1431 child_ops
.to_pid_to_str
= cygwin_pid_to_str
;
1432 child_ops
.to_stop
= child_stop
;
1433 child_ops
.to_stratum
= process_stratum
;
1434 child_ops
.DONT_USE
= 0;
1435 child_ops
.to_has_all_memory
= 1;
1436 child_ops
.to_has_memory
= 1;
1437 child_ops
.to_has_stack
= 1;
1438 child_ops
.to_has_registers
= 1;
1439 child_ops
.to_has_execution
= 1;
1440 child_ops
.to_sections
= 0;
1441 child_ops
.to_sections_end
= 0;
1442 child_ops
.to_magic
= OPS_MAGIC
;
1446 _initialize_inftarg (void)
1448 struct cmd_list_element
*c
;
1452 c
= add_com ("dll-symbols", class_files
, dll_symbol_command
,
1453 "Load dll library symbols from FILE.");
1454 c
->completer
= filename_completer
;
1456 add_com_alias ("sharedlibrary", "dll-symbols", class_alias
, 1);
1458 add_show_from_set (add_set_cmd ("new-console", class_support
, var_boolean
,
1459 (char *) &new_console
,
1460 "Set creation of new console when creating child process.",
1464 add_show_from_set (add_set_cmd ("new-group", class_support
, var_boolean
,
1465 (char *) &new_group
,
1466 "Set creation of new group when creating child process.",
1470 add_show_from_set (add_set_cmd ("debugexec", class_support
, var_boolean
,
1471 (char *) &debug_exec
,
1472 "Set whether to display execution in child process.",
1476 add_show_from_set (add_set_cmd ("debugevents", class_support
, var_boolean
,
1477 (char *) &debug_events
,
1478 "Set whether to display kernel events in child process.",
1482 add_show_from_set (add_set_cmd ("debugmemory", class_support
, var_boolean
,
1483 (char *) &debug_memory
,
1484 "Set whether to display memory accesses in child process.",
1488 add_show_from_set (add_set_cmd ("debugexceptions", class_support
, var_boolean
,
1489 (char *) &debug_exceptions
,
1490 "Set whether to display kernel exceptions in child process.",
1494 add_info ("dll", info_dll_command
, "Status of loaded DLLs.");
1495 add_info_alias ("sharedlibrary", "dll", 1);
1497 add_target (&child_ops
);
1500 /* Determine if the thread referenced by "pid" is alive
1501 by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0
1502 it means that the pid has died. Otherwise it is assumed to be alive. */
1504 win32_child_thread_alive (ptid_t ptid
)
1506 int pid
= PIDGET (ptid
);
1508 return WaitForSingleObject (thread_rec (pid
, FALSE
)->h
, 0) == WAIT_OBJECT_0
?
1512 /* Convert pid to printable format. */
1514 cygwin_pid_to_str (ptid_t ptid
)
1516 static char buf
[80];
1517 int pid
= PIDGET (ptid
);
1519 if ((DWORD
) pid
== current_event
.dwProcessId
)
1520 sprintf (buf
, "process %d", pid
);
1522 sprintf (buf
, "thread %ld.0x%x", current_event
.dwProcessId
, pid
);
1527 core_dll_symbols_add (char *dll_name
, DWORD base_addr
)
1529 struct objfile
*objfile
;
1530 char *objfile_basename
;
1531 const char *dll_basename
;
1533 if (!(dll_basename
= strrchr (dll_name
, '/')))
1534 dll_basename
= dll_name
;
1538 ALL_OBJFILES (objfile
)
1540 objfile_basename
= strrchr (objfile
->name
, '/');
1542 if (objfile_basename
&&
1543 strcmp (dll_basename
, objfile_basename
+ 1) == 0)
1545 printf_unfiltered ("%08lx:%s (symbols previously loaded)\n",
1546 base_addr
, dll_name
);
1551 register_loaded_dll (dll_name
, base_addr
+ 0x1000);
1552 solib_symbols_add (dll_name
, 0, (CORE_ADDR
) base_addr
+ 0x1000);
1560 struct target_ops
*target
;
1563 map_code_section_args
;
1566 map_single_dll_code_section (bfd
* abfd
, asection
* sect
, void *obj
)
1570 struct section_table
*new_target_sect_ptr
;
1572 map_code_section_args
*args
= (map_code_section_args
*) obj
;
1573 struct target_ops
*target
= args
->target
;
1574 if (sect
->flags
& SEC_CODE
)
1576 update_coreops
= core_ops
.to_sections
== target
->to_sections
;
1578 if (target
->to_sections
)
1580 old
= target
->to_sections_end
- target
->to_sections
;
1581 target
->to_sections
= (struct section_table
*)
1582 xrealloc ((char *) target
->to_sections
,
1583 (sizeof (struct section_table
)) * (1 + old
));
1588 target
->to_sections
= (struct section_table
*)
1589 xmalloc ((sizeof (struct section_table
)));
1591 target
->to_sections_end
= target
->to_sections
+ (1 + old
);
1593 /* Update the to_sections field in the core_ops structure
1597 core_ops
.to_sections
= target
->to_sections
;
1598 core_ops
.to_sections_end
= target
->to_sections_end
;
1600 new_target_sect_ptr
= target
->to_sections
+ old
;
1601 new_target_sect_ptr
->addr
= args
->addr
+ bfd_section_vma (abfd
, sect
);
1602 new_target_sect_ptr
->endaddr
= args
->addr
+ bfd_section_vma (abfd
, sect
) +
1603 bfd_section_size (abfd
, sect
);;
1604 new_target_sect_ptr
->the_bfd_section
= sect
;
1605 new_target_sect_ptr
->bfd
= abfd
;
1610 dll_code_sections_add (const char *dll_name
, int base_addr
, struct target_ops
*target
)
1613 map_code_section_args map_args
;
1614 asection
*lowest_sect
;
1616 if (dll_name
== NULL
|| target
== NULL
)
1618 name
= xstrdup (dll_name
);
1619 dll_bfd
= bfd_openr (name
, "pei-i386");
1620 if (dll_bfd
== NULL
)
1623 if (bfd_check_format (dll_bfd
, bfd_object
))
1625 lowest_sect
= bfd_get_section_by_name (dll_bfd
, ".text");
1626 if (lowest_sect
== NULL
)
1628 map_args
.target
= target
;
1629 map_args
.addr
= base_addr
- bfd_section_vma (dll_bfd
, lowest_sect
);
1631 bfd_map_over_sections (dll_bfd
, &map_single_dll_code_section
, (void *) (&map_args
));
1638 core_section_load_dll_symbols (bfd
* abfd
, asection
* sect
, void *obj
)
1640 struct target_ops
*target
= (struct target_ops
*) obj
;
1645 char *dll_name
= NULL
;
1647 struct win32_pstatus
*pstatus
;
1650 if (strncmp (sect
->name
, ".module", 7))
1653 buf
= (char *) xmalloc (sect
->_raw_size
+ 1);
1656 printf_unfiltered ("memory allocation failed for %s\n", sect
->name
);
1659 if (!bfd_get_section_contents (abfd
, sect
, buf
, 0, sect
->_raw_size
))
1662 pstatus
= (struct win32_pstatus
*) buf
;
1664 memmove (&base_addr
, &(pstatus
->data
.module_info
.base_address
), sizeof (base_addr
));
1665 dll_name_size
= pstatus
->data
.module_info
.module_name_size
;
1666 if (offsetof (struct win32_pstatus
, data
.module_info
.module_name
) + dll_name_size
> sect
->_raw_size
)
1669 dll_name
= (char *) xmalloc (dll_name_size
+ 1);
1672 printf_unfiltered ("memory allocation failed for %s\n", sect
->name
);
1675 strncpy (dll_name
, pstatus
->data
.module_info
.module_name
, dll_name_size
);
1677 while ((p
= strchr (dll_name
, '\\')))
1680 if (!core_dll_symbols_add (dll_name
, (DWORD
) base_addr
))
1681 printf_unfiltered ("%s: Failed to load dll symbols.\n", dll_name
);
1683 if (!dll_code_sections_add (dll_name
, (DWORD
) base_addr
+ 0x1000, target
))
1684 printf_unfiltered ("%s: Failed to map dll code sections.\n", dll_name
);
1695 child_solib_add (char *filename ATTRIBUTE_UNUSED
, int from_tty
, struct target_ops
*target
)
1699 child_clear_solibs ();
1700 bfd_map_over_sections (core_bfd
, &core_section_load_dll_symbols
, target
);
1704 if (solib_end
&& solib_end
->name
)
1705 solib_symbols_add (solib_end
->name
, from_tty
, solib_end
->load_addr
);
1710 fetch_elf_core_registers (char *core_reg_sect
,
1711 unsigned core_reg_size
,
1716 if (core_reg_size
< sizeof (CONTEXT
))
1718 error ("Core file register section too small (%u bytes).", core_reg_size
);
1721 for (r
= 0; r
< NUM_REGS
; r
++)
1722 supply_register (r
, core_reg_sect
+ mappings
[r
]);
1725 static struct core_fns win32_elf_core_fns
=
1727 bfd_target_elf_flavour
,
1728 default_check_format
,
1729 default_core_sniffer
,
1730 fetch_elf_core_registers
,
1735 _initialize_core_win32 (void)
1737 add_core_fns (&win32_elf_core_fns
);