1 /* Select target systems and architectures at runtime for GDB.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
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 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, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
25 #include "gdb_string.h"
40 static void target_info (char *, int);
42 static void cleanup_target (struct target_ops
*);
44 static void maybe_kill_then_create_inferior (char *, char *, char **);
46 static void default_clone_and_follow_inferior (int, int *);
48 static void maybe_kill_then_attach (char *, int);
50 static void kill_or_be_killed (int);
52 static void default_terminal_info (char *, int);
54 static int nosymbol (char *, CORE_ADDR
*);
56 static void tcomplain (void);
58 static int nomemory (CORE_ADDR
, char *, int, int, struct target_ops
*);
60 static int return_zero (void);
62 static int return_one (void);
64 void target_ignore (void);
66 static void target_command (char *, int);
68 static struct target_ops
*find_default_run_target (char *);
70 static void update_current_target (void);
72 static void nosupport_runtime (void);
74 static void normal_target_post_startup_inferior (int pid
);
76 /* Transfer LEN bytes between target address MEMADDR and GDB address
77 MYADDR. Returns 0 for success, errno code for failure (which
78 includes partial transfers -- if you want a more useful response to
79 partial transfers, try either target_read_memory_partial or
80 target_write_memory_partial). */
83 target_xfer_memory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
);
85 static void init_dummy_target (void);
87 static void debug_to_open (char *, int);
89 static void debug_to_close (int);
91 static void debug_to_attach (char *, int);
93 static void debug_to_detach (char *, int);
95 static void debug_to_resume (int, int, enum target_signal
);
97 static int debug_to_wait (int, struct target_waitstatus
*);
99 static void debug_to_fetch_registers (int);
101 static void debug_to_store_registers (int);
103 static void debug_to_prepare_to_store (void);
106 debug_to_xfer_memory (CORE_ADDR
, char *, int, int, struct mem_attrib
*,
107 struct target_ops
*);
109 static void debug_to_files_info (struct target_ops
*);
111 static int debug_to_insert_breakpoint (CORE_ADDR
, char *);
113 static int debug_to_remove_breakpoint (CORE_ADDR
, char *);
115 static void debug_to_terminal_init (void);
117 static void debug_to_terminal_inferior (void);
119 static void debug_to_terminal_ours_for_output (void);
121 static void debug_to_terminal_ours (void);
123 static void debug_to_terminal_info (char *, int);
125 static void debug_to_kill (void);
127 static void debug_to_load (char *, int);
129 static int debug_to_lookup_symbol (char *, CORE_ADDR
*);
131 static void debug_to_create_inferior (char *, char *, char **);
133 static void debug_to_mourn_inferior (void);
135 static int debug_to_can_run (void);
137 static void debug_to_notice_signals (int);
139 static int debug_to_thread_alive (int);
141 static void debug_to_stop (void);
143 static int debug_to_query (int /*char */ , char *, char *, int *);
145 /* Pointer to array of target architecture structures; the size of the
146 array; the current index into the array; the allocated size of the
148 struct target_ops
**target_structs
;
149 unsigned target_struct_size
;
150 unsigned target_struct_index
;
151 unsigned target_struct_allocsize
;
152 #define DEFAULT_ALLOCSIZE 10
154 /* The initial current target, so that there is always a semi-valid
157 static struct target_ops dummy_target
;
159 /* Top of target stack. */
161 struct target_stack_item
*target_stack
;
163 /* The target structure we are currently using to talk to a process
164 or file or whatever "inferior" we have. */
166 struct target_ops current_target
;
168 /* Command list for target. */
170 static struct cmd_list_element
*targetlist
= NULL
;
172 /* Nonzero if we are debugging an attached outside process
173 rather than an inferior. */
177 /* Non-zero if we want to see trace of target level stuff. */
179 static int targetdebug
= 0;
181 static void setup_target_debug (void);
183 DCACHE
*target_dcache
;
185 /* The user just typed 'target' without the name of a target. */
189 target_command (char *arg
, int from_tty
)
191 fputs_filtered ("Argument required (target name). Try `help target'\n",
195 /* Add a possible target architecture to the list. */
198 add_target (struct target_ops
*t
)
202 target_struct_allocsize
= DEFAULT_ALLOCSIZE
;
203 target_structs
= (struct target_ops
**) xmalloc
204 (target_struct_allocsize
* sizeof (*target_structs
));
206 if (target_struct_size
>= target_struct_allocsize
)
208 target_struct_allocsize
*= 2;
209 target_structs
= (struct target_ops
**)
210 xrealloc ((char *) target_structs
,
211 target_struct_allocsize
* sizeof (*target_structs
));
213 target_structs
[target_struct_size
++] = t
;
214 /* cleanup_target (t); */
216 if (targetlist
== NULL
)
217 add_prefix_cmd ("target", class_run
, target_command
,
218 "Connect to a target machine or process.\n\
219 The first argument is the type or protocol of the target machine.\n\
220 Remaining arguments are interpreted by the target protocol. For more\n\
221 information on the arguments for a particular protocol, type\n\
222 `help target ' followed by the protocol name.",
223 &targetlist
, "target ", 0, &cmdlist
);
224 add_cmd (t
->to_shortname
, no_class
, t
->to_open
, t
->to_doc
, &targetlist
);
235 target_load (char *arg
, int from_tty
)
237 dcache_invalidate (target_dcache
);
238 (*current_target
.to_load
) (arg
, from_tty
);
243 nomemory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
,
244 struct target_ops
*t
)
246 errno
= EIO
; /* Can't read/write this location */
247 return 0; /* No bytes handled */
253 error ("You can't do that when your target is `%s'",
254 current_target
.to_shortname
);
260 error ("You can't do that without a process to debug.");
265 nosymbol (char *name
, CORE_ADDR
*addrp
)
267 return 1; /* Symbol does not exist in target env */
272 nosupport_runtime (void)
277 error ("No run-time support for this");
283 default_terminal_info (char *args
, int from_tty
)
285 printf_unfiltered ("No saved terminal information.\n");
288 /* This is the default target_create_inferior and target_attach function.
289 If the current target is executing, it asks whether to kill it off.
290 If this function returns without calling error(), it has killed off
291 the target, and the operation should be attempted. */
294 kill_or_be_killed (int from_tty
)
296 if (target_has_execution
)
298 printf_unfiltered ("You are already running a program:\n");
299 target_files_info ();
300 if (query ("Kill it? "))
303 if (target_has_execution
)
304 error ("Killing the program did not help.");
309 error ("Program not killed.");
316 maybe_kill_then_attach (char *args
, int from_tty
)
318 kill_or_be_killed (from_tty
);
319 target_attach (args
, from_tty
);
323 maybe_kill_then_create_inferior (char *exec
, char *args
, char **env
)
325 kill_or_be_killed (0);
326 target_create_inferior (exec
, args
, env
);
330 default_clone_and_follow_inferior (int child_pid
, int *followed_child
)
332 target_clone_and_follow_inferior (child_pid
, followed_child
);
335 /* Clean up a target struct so it no longer has any zero pointers in it.
336 We default entries, at least to stubs that print error messages. */
339 cleanup_target (struct target_ops
*t
)
342 #define de_fault(field, value) \
347 (void (*) (char *, int))
353 maybe_kill_then_attach
);
354 de_fault (to_post_attach
,
357 de_fault (to_require_attach
,
358 maybe_kill_then_attach
);
360 (void (*) (char *, int))
362 de_fault (to_require_detach
,
363 (void (*) (int, char *, int))
366 (void (*) (int, int, enum target_signal
))
369 (int (*) (int, struct target_waitstatus
*))
371 de_fault (to_post_wait
,
372 (void (*) (int, int))
374 de_fault (to_fetch_registers
,
377 de_fault (to_store_registers
,
380 de_fault (to_prepare_to_store
,
383 de_fault (to_xfer_memory
,
384 (int (*) (CORE_ADDR
, char *, int, int, struct mem_attrib
*, struct target_ops
*))
386 de_fault (to_files_info
,
387 (void (*) (struct target_ops
*))
389 de_fault (to_insert_breakpoint
,
390 memory_insert_breakpoint
);
391 de_fault (to_remove_breakpoint
,
392 memory_remove_breakpoint
);
393 de_fault (to_terminal_init
,
396 de_fault (to_terminal_inferior
,
399 de_fault (to_terminal_ours_for_output
,
402 de_fault (to_terminal_ours
,
405 de_fault (to_terminal_info
,
406 default_terminal_info
);
411 (void (*) (char *, int))
413 de_fault (to_lookup_symbol
,
414 (int (*) (char *, CORE_ADDR
*))
416 de_fault (to_create_inferior
,
417 maybe_kill_then_create_inferior
);
418 de_fault (to_post_startup_inferior
,
421 de_fault (to_acknowledge_created_inferior
,
424 de_fault (to_clone_and_follow_inferior
,
425 default_clone_and_follow_inferior
);
426 de_fault (to_post_follow_inferior_by_clone
,
429 de_fault (to_insert_fork_catchpoint
,
432 de_fault (to_remove_fork_catchpoint
,
435 de_fault (to_insert_vfork_catchpoint
,
438 de_fault (to_remove_vfork_catchpoint
,
441 de_fault (to_has_forked
,
442 (int (*) (int, int *))
444 de_fault (to_has_vforked
,
445 (int (*) (int, int *))
447 de_fault (to_can_follow_vfork_prior_to_exec
,
450 de_fault (to_post_follow_vfork
,
451 (void (*) (int, int, int, int))
453 de_fault (to_insert_exec_catchpoint
,
456 de_fault (to_remove_exec_catchpoint
,
459 de_fault (to_has_execd
,
460 (int (*) (int, char **))
462 de_fault (to_reported_exec_events_per_exec_call
,
465 de_fault (to_has_syscall_event
,
466 (int (*) (int, enum target_waitkind
*, int *))
468 de_fault (to_has_exited
,
469 (int (*) (int, int, int *))
471 de_fault (to_mourn_inferior
,
474 de_fault (to_can_run
,
476 de_fault (to_notice_signals
,
479 de_fault (to_thread_alive
,
482 de_fault (to_find_new_threads
,
485 de_fault (to_extra_thread_info
,
486 (char *(*) (struct thread_info
*))
492 (int (*) (int, char *, char *, int *))
495 (void (*) (char *, struct ui_file
*))
497 de_fault (to_enable_exception_callback
,
498 (struct symtab_and_line
* (*) (enum exception_event_kind
, int))
500 de_fault (to_get_current_exception_event
,
501 (struct exception_event_record
* (*) (void))
503 de_fault (to_pid_to_exec_file
,
506 de_fault (to_can_async_p
,
509 de_fault (to_is_async_p
,
513 (void (*) (void (*) (enum inferior_event_type
, void*), void*))
518 /* Go through the target stack from top to bottom, copying over zero entries in
519 current_target. In effect, we are doing class inheritance through the
520 pushed target vectors. */
523 update_current_target (void)
525 struct target_stack_item
*item
;
526 struct target_ops
*t
;
528 /* First, reset current_target */
529 memset (¤t_target
, 0, sizeof current_target
);
531 for (item
= target_stack
; item
; item
= item
->next
)
533 t
= item
->target_ops
;
535 #define INHERIT(FIELD, TARGET) \
536 if (!current_target.FIELD) \
537 current_target.FIELD = TARGET->FIELD
539 INHERIT (to_shortname
, t
);
540 INHERIT (to_longname
, t
);
542 INHERIT (to_open
, t
);
543 INHERIT (to_close
, t
);
544 INHERIT (to_attach
, t
);
545 INHERIT (to_post_attach
, t
);
546 INHERIT (to_require_attach
, t
);
547 INHERIT (to_detach
, t
);
548 INHERIT (to_require_detach
, t
);
549 INHERIT (to_resume
, t
);
550 INHERIT (to_wait
, t
);
551 INHERIT (to_post_wait
, t
);
552 INHERIT (to_fetch_registers
, t
);
553 INHERIT (to_store_registers
, t
);
554 INHERIT (to_prepare_to_store
, t
);
555 INHERIT (to_xfer_memory
, t
);
556 INHERIT (to_files_info
, t
);
557 INHERIT (to_insert_breakpoint
, t
);
558 INHERIT (to_remove_breakpoint
, t
);
559 INHERIT (to_terminal_init
, t
);
560 INHERIT (to_terminal_inferior
, t
);
561 INHERIT (to_terminal_ours_for_output
, t
);
562 INHERIT (to_terminal_ours
, t
);
563 INHERIT (to_terminal_info
, t
);
564 INHERIT (to_kill
, t
);
565 INHERIT (to_load
, t
);
566 INHERIT (to_lookup_symbol
, t
);
567 INHERIT (to_create_inferior
, t
);
568 INHERIT (to_post_startup_inferior
, t
);
569 INHERIT (to_acknowledge_created_inferior
, t
);
570 INHERIT (to_clone_and_follow_inferior
, t
);
571 INHERIT (to_post_follow_inferior_by_clone
, t
);
572 INHERIT (to_insert_fork_catchpoint
, t
);
573 INHERIT (to_remove_fork_catchpoint
, t
);
574 INHERIT (to_insert_vfork_catchpoint
, t
);
575 INHERIT (to_remove_vfork_catchpoint
, t
);
576 INHERIT (to_has_forked
, t
);
577 INHERIT (to_has_vforked
, t
);
578 INHERIT (to_can_follow_vfork_prior_to_exec
, t
);
579 INHERIT (to_post_follow_vfork
, t
);
580 INHERIT (to_insert_exec_catchpoint
, t
);
581 INHERIT (to_remove_exec_catchpoint
, t
);
582 INHERIT (to_has_execd
, t
);
583 INHERIT (to_reported_exec_events_per_exec_call
, t
);
584 INHERIT (to_has_syscall_event
, t
);
585 INHERIT (to_has_exited
, t
);
586 INHERIT (to_mourn_inferior
, t
);
587 INHERIT (to_can_run
, t
);
588 INHERIT (to_notice_signals
, t
);
589 INHERIT (to_thread_alive
, t
);
590 INHERIT (to_find_new_threads
, t
);
591 INHERIT (to_pid_to_str
, t
);
592 INHERIT (to_extra_thread_info
, t
);
593 INHERIT (to_stop
, t
);
594 INHERIT (to_query
, t
);
595 INHERIT (to_rcmd
, t
);
596 INHERIT (to_enable_exception_callback
, t
);
597 INHERIT (to_get_current_exception_event
, t
);
598 INHERIT (to_pid_to_exec_file
, t
);
599 INHERIT (to_stratum
, t
);
600 INHERIT (DONT_USE
, t
);
601 INHERIT (to_has_all_memory
, t
);
602 INHERIT (to_has_memory
, t
);
603 INHERIT (to_has_stack
, t
);
604 INHERIT (to_has_registers
, t
);
605 INHERIT (to_has_execution
, t
);
606 INHERIT (to_has_thread_control
, t
);
607 INHERIT (to_sections
, t
);
608 INHERIT (to_sections_end
, t
);
609 INHERIT (to_can_async_p
, t
);
610 INHERIT (to_is_async_p
, t
);
611 INHERIT (to_async
, t
);
612 INHERIT (to_async_mask_value
, t
);
613 INHERIT (to_magic
, t
);
619 /* Push a new target type into the stack of the existing target accessors,
620 possibly superseding some of the existing accessors.
622 Result is zero if the pushed target ended up on top of the stack,
623 nonzero if at least one target is on top of it.
625 Rather than allow an empty stack, we always have the dummy target at
626 the bottom stratum, so we can call the function vectors without
630 push_target (struct target_ops
*t
)
632 struct target_stack_item
*cur
, *prev
, *tmp
;
634 /* Check magic number. If wrong, it probably means someone changed
635 the struct definition, but not all the places that initialize one. */
636 if (t
->to_magic
!= OPS_MAGIC
)
638 fprintf_unfiltered (gdb_stderr
,
639 "Magic number of %s target struct wrong\n",
641 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
644 /* Find the proper stratum to install this target in. */
646 for (prev
= NULL
, cur
= target_stack
; cur
; prev
= cur
, cur
= cur
->next
)
648 if ((int) (t
->to_stratum
) >= (int) (cur
->target_ops
->to_stratum
))
652 /* If there's already targets at this stratum, remove them. */
655 while (t
->to_stratum
== cur
->target_ops
->to_stratum
)
657 /* There's already something on this stratum. Close it off. */
658 if (cur
->target_ops
->to_close
)
659 (cur
->target_ops
->to_close
) (0);
661 prev
->next
= cur
->next
; /* Unchain old target_ops */
663 target_stack
= cur
->next
; /* Unchain first on list */
669 /* We have removed all targets in our stratum, now add the new one. */
671 tmp
= (struct target_stack_item
*)
672 xmalloc (sizeof (struct target_stack_item
));
681 update_current_target ();
683 cleanup_target (¤t_target
); /* Fill in the gaps */
686 setup_target_debug ();
691 /* Remove a target_ops vector from the stack, wherever it may be.
692 Return how many times it was removed (0 or 1). */
695 unpush_target (struct target_ops
*t
)
697 struct target_stack_item
*cur
, *prev
;
700 t
->to_close (0); /* Let it clean up */
702 /* Look for the specified target. Note that we assume that a target
703 can only occur once in the target stack. */
705 for (cur
= target_stack
, prev
= NULL
; cur
; prev
= cur
, cur
= cur
->next
)
706 if (cur
->target_ops
== t
)
710 return 0; /* Didn't find target_ops, quit now */
712 /* Unchain the target */
715 target_stack
= cur
->next
;
717 prev
->next
= cur
->next
;
719 xfree (cur
); /* Release the target_stack_item */
721 update_current_target ();
722 cleanup_target (¤t_target
);
730 (current_target
.to_close
) (0); /* Let it clean up */
731 if (unpush_target (target_stack
->target_ops
) == 1)
734 fprintf_unfiltered (gdb_stderr
,
735 "pop_target couldn't find target %s\n",
736 current_target
.to_shortname
);
737 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
741 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
743 /* target_read_string -- read a null terminated string, up to LEN bytes,
744 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
745 Set *STRING to a pointer to malloc'd memory containing the data; the caller
746 is responsible for freeing it. Return the number of bytes successfully
750 target_read_string (CORE_ADDR memaddr
, char **string
, int len
, int *errnop
)
752 int tlen
, origlen
, offset
, i
;
756 int buffer_allocated
;
758 unsigned int nbytes_read
= 0;
760 /* Small for testing. */
761 buffer_allocated
= 4;
762 buffer
= xmalloc (buffer_allocated
);
769 tlen
= MIN (len
, 4 - (memaddr
& 3));
770 offset
= memaddr
& 3;
772 errcode
= target_xfer_memory (memaddr
& ~3, buf
, 4, 0);
775 /* The transfer request might have crossed the boundary to an
776 unallocated region of memory. Retry the transfer, requesting
780 errcode
= target_xfer_memory (memaddr
, buf
, 1, 0);
785 if (bufptr
- buffer
+ tlen
> buffer_allocated
)
788 bytes
= bufptr
- buffer
;
789 buffer_allocated
*= 2;
790 buffer
= xrealloc (buffer
, buffer_allocated
);
791 bufptr
= buffer
+ bytes
;
794 for (i
= 0; i
< tlen
; i
++)
796 *bufptr
++ = buf
[i
+ offset
];
797 if (buf
[i
+ offset
] == '\000')
799 nbytes_read
+= i
+ 1;
816 /* Read LEN bytes of target memory at address MEMADDR, placing the results in
817 GDB's memory at MYADDR. Returns either 0 for success or an errno value
820 If an error occurs, no guarantee is made about the contents of the data at
821 MYADDR. In particular, the caller should not depend upon partial reads
822 filling the buffer with good data. There is no way for the caller to know
823 how much good data might have been transfered anyway. Callers that can
824 deal with partial reads should call target_read_memory_partial. */
827 target_read_memory (CORE_ADDR memaddr
, char *myaddr
, int len
)
829 return target_xfer_memory (memaddr
, myaddr
, len
, 0);
833 target_write_memory (CORE_ADDR memaddr
, char *myaddr
, int len
)
835 return target_xfer_memory (memaddr
, myaddr
, len
, 1);
838 /* Move memory to or from the targets. The top target gets priority;
839 if it cannot handle it, it is offered to the next one down, etc.
841 Result is -1 on error, or the number of bytes transfered. */
844 do_xfer_memory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
,
845 struct mem_attrib
*attrib
)
849 struct target_ops
*t
;
850 struct target_stack_item
*item
;
852 /* Zero length requests are ok and require no work. */
856 /* to_xfer_memory is not guaranteed to set errno, even when it returns
860 /* The quick case is that the top target can handle the transfer. */
861 res
= current_target
.to_xfer_memory
862 (memaddr
, myaddr
, len
, write
, attrib
, ¤t_target
);
864 /* If res <= 0 then we call it again in the loop. Ah well. */
867 for (item
= target_stack
; item
; item
= item
->next
)
869 t
= item
->target_ops
;
870 if (!t
->to_has_memory
)
873 res
= t
->to_xfer_memory (memaddr
, myaddr
, len
, write
, attrib
, t
);
875 break; /* Handled all or part of xfer */
876 if (t
->to_has_all_memory
)
888 /* Perform a memory transfer. Iterate until the entire region has
891 Result is 0 or errno value. */
894 target_xfer_memory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
)
898 struct mem_region
*region
;
900 /* Zero length requests are ok and require no work. */
908 region
= lookup_mem_region(memaddr
);
909 if (memaddr
+ len
< region
->hi
)
912 reg_len
= region
->hi
- memaddr
;
914 switch (region
->attrib
.mode
)
929 if (region
->attrib
.cache
)
930 res
= dcache_xfer_memory(target_dcache
, memaddr
, myaddr
,
933 res
= do_xfer_memory(memaddr
, myaddr
, reg_len
, write
,
938 /* If this address is for nonexistent memory, read zeros
939 if reading, or do nothing if writing. Return
942 memset (myaddr
, 0, len
);
956 return 0; /* We managed to cover it all somehow. */
960 /* Perform a partial memory transfer.
962 Result is -1 on error, or the number of bytes transfered. */
965 target_xfer_memory_partial (CORE_ADDR memaddr
, char *myaddr
, int len
,
966 int write_p
, int *err
)
970 struct mem_region
*region
;
972 /* Zero length requests are ok and require no work. */
979 region
= lookup_mem_region(memaddr
);
980 if (memaddr
+ len
< region
->hi
)
983 reg_len
= region
->hi
- memaddr
;
985 switch (region
->attrib
.mode
)
1004 if (region
->attrib
.cache
)
1005 res
= dcache_xfer_memory (target_dcache
, memaddr
, myaddr
,
1008 res
= do_xfer_memory (memaddr
, myaddr
, reg_len
, write_p
,
1026 target_read_memory_partial (CORE_ADDR memaddr
, char *buf
, int len
, int *err
)
1028 return target_xfer_memory_partial (memaddr
, buf
, len
, 0, err
);
1032 target_write_memory_partial (CORE_ADDR memaddr
, char *buf
, int len
, int *err
)
1034 return target_xfer_memory_partial (memaddr
, buf
, len
, 1, err
);
1039 target_info (char *args
, int from_tty
)
1041 struct target_ops
*t
;
1042 struct target_stack_item
*item
;
1043 int has_all_mem
= 0;
1045 if (symfile_objfile
!= NULL
)
1046 printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile
->name
);
1048 #ifdef FILES_INFO_HOOK
1049 if (FILES_INFO_HOOK ())
1053 for (item
= target_stack
; item
; item
= item
->next
)
1055 t
= item
->target_ops
;
1057 if (!t
->to_has_memory
)
1060 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
1063 printf_unfiltered ("\tWhile running this, GDB does not access memory from...\n");
1064 printf_unfiltered ("%s:\n", t
->to_longname
);
1065 (t
->to_files_info
) (t
);
1066 has_all_mem
= t
->to_has_all_memory
;
1070 /* This is to be called by the open routine before it does
1074 target_preopen (int from_tty
)
1078 if (target_has_execution
)
1081 || query ("A program is being debugged already. Kill it? "))
1084 error ("Program not killed.");
1087 /* Calling target_kill may remove the target from the stack. But if
1088 it doesn't (which seems like a win for UDI), remove it now. */
1090 if (target_has_execution
)
1094 /* Detach a target after doing deferred register stores. */
1097 target_detach (char *args
, int from_tty
)
1099 /* Handle any optimized stores to the inferior. */
1100 #ifdef DO_DEFERRED_STORES
1103 (current_target
.to_detach
) (args
, from_tty
);
1107 target_link (char *modname
, CORE_ADDR
*t_reloc
)
1109 if (STREQ (current_target
.to_shortname
, "rombug"))
1111 (current_target
.to_lookup_symbol
) (modname
, t_reloc
);
1113 error ("Unable to link to %s and get relocation in rombug", modname
);
1116 *t_reloc
= (CORE_ADDR
) -1;
1120 target_async_mask (int mask
)
1122 int saved_async_masked_status
= target_async_mask_value
;
1123 target_async_mask_value
= mask
;
1124 return saved_async_masked_status
;
1127 /* Look through the list of possible targets for a target that can
1128 execute a run or attach command without any other data. This is
1129 used to locate the default process stratum.
1131 Result is always valid (error() is called for errors). */
1133 static struct target_ops
*
1134 find_default_run_target (char *do_mesg
)
1136 struct target_ops
**t
;
1137 struct target_ops
*runable
= NULL
;
1142 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
1145 if ((*t
)->to_can_run
&& target_can_run (*t
))
1153 error ("Don't know how to %s. Try \"help target\".", do_mesg
);
1159 find_default_attach (char *args
, int from_tty
)
1161 struct target_ops
*t
;
1163 t
= find_default_run_target ("attach");
1164 (t
->to_attach
) (args
, from_tty
);
1169 find_default_require_attach (char *args
, int from_tty
)
1171 struct target_ops
*t
;
1173 t
= find_default_run_target ("require_attach");
1174 (t
->to_require_attach
) (args
, from_tty
);
1179 find_default_require_detach (int pid
, char *args
, int from_tty
)
1181 struct target_ops
*t
;
1183 t
= find_default_run_target ("require_detach");
1184 (t
->to_require_detach
) (pid
, args
, from_tty
);
1189 find_default_create_inferior (char *exec_file
, char *allargs
, char **env
)
1191 struct target_ops
*t
;
1193 t
= find_default_run_target ("run");
1194 (t
->to_create_inferior
) (exec_file
, allargs
, env
);
1199 find_default_clone_and_follow_inferior (int child_pid
, int *followed_child
)
1201 struct target_ops
*t
;
1203 t
= find_default_run_target ("run");
1204 (t
->to_clone_and_follow_inferior
) (child_pid
, followed_child
);
1221 * Resize the to_sections pointer. Also make sure that anyone that
1222 * was holding on to an old value of it gets updated.
1223 * Returns the old size.
1227 target_resize_to_sections (struct target_ops
*target
, int num_added
)
1229 struct target_ops
**t
;
1230 struct section_table
*old_value
;
1233 old_value
= target
->to_sections
;
1235 if (target
->to_sections
)
1237 old_count
= target
->to_sections_end
- target
->to_sections
;
1238 target
->to_sections
= (struct section_table
*)
1239 xrealloc ((char *) target
->to_sections
,
1240 (sizeof (struct section_table
)) * (num_added
+ old_count
));
1245 target
->to_sections
= (struct section_table
*)
1246 xmalloc ((sizeof (struct section_table
)) * num_added
);
1248 target
->to_sections_end
= target
->to_sections
+ (num_added
+ old_count
);
1250 /* Check to see if anyone else was pointing to this structure.
1251 If old_value was null, then no one was. */
1255 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
1258 if ((*t
)->to_sections
== old_value
)
1260 (*t
)->to_sections
= target
->to_sections
;
1261 (*t
)->to_sections_end
= target
->to_sections_end
;
1270 /* Remove all target sections taken from ABFD.
1272 Scan the current target stack for targets whose section tables
1273 refer to sections from BFD, and remove those sections. We use this
1274 when we notice that the inferior has unloaded a shared object, for
1277 remove_target_sections (bfd
*abfd
)
1279 struct target_ops
**t
;
1281 for (t
= target_structs
; t
< target_structs
+ target_struct_size
; t
++)
1283 struct section_table
*src
, *dest
;
1285 dest
= (*t
)->to_sections
;
1286 for (src
= (*t
)->to_sections
; src
< (*t
)->to_sections_end
; src
++)
1287 if (src
->bfd
!= abfd
)
1289 /* Keep this section. */
1290 if (dest
< src
) *dest
= *src
;
1294 /* If we've dropped any sections, resize the section table. */
1296 target_resize_to_sections (*t
, dest
- src
);
1303 /* Find a single runnable target in the stack and return it. If for
1304 some reason there is more than one, return NULL. */
1307 find_run_target (void)
1309 struct target_ops
**t
;
1310 struct target_ops
*runable
= NULL
;
1315 for (t
= target_structs
; t
< target_structs
+ target_struct_size
; ++t
)
1317 if ((*t
)->to_can_run
&& target_can_run (*t
))
1324 return (count
== 1 ? runable
: NULL
);
1327 /* Find a single core_stratum target in the list of targets and return it.
1328 If for some reason there is more than one, return NULL. */
1331 find_core_target (void)
1333 struct target_ops
**t
;
1334 struct target_ops
*runable
= NULL
;
1339 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
1342 if ((*t
)->to_stratum
== core_stratum
)
1349 return (count
== 1 ? runable
: NULL
);
1353 * Find the next target down the stack from the specified target.
1357 find_target_beneath (struct target_ops
*t
)
1359 struct target_stack_item
*cur
;
1361 for (cur
= target_stack
; cur
; cur
= cur
->next
)
1362 if (cur
->target_ops
== t
)
1365 if (cur
== NULL
|| cur
->next
== NULL
)
1368 return cur
->next
->target_ops
;
1372 /* The inferior process has died. Long live the inferior! */
1375 generic_mourn_inferior (void)
1377 extern int show_breakpoint_hit_counts
;
1381 breakpoint_init_inferior (inf_exited
);
1382 registers_changed ();
1384 #ifdef CLEAR_DEFERRED_STORES
1385 /* Delete any pending stores to the inferior... */
1386 CLEAR_DEFERRED_STORES
;
1389 reopen_exec_file ();
1390 reinit_frame_cache ();
1392 /* It is confusing to the user for ignore counts to stick around
1393 from previous runs of the inferior. So clear them. */
1394 /* However, it is more confusing for the ignore counts to disappear when
1395 using hit counts. So don't clear them if we're counting hits. */
1396 if (!show_breakpoint_hit_counts
)
1397 breakpoint_clear_ignore_counts ();
1403 /* This table must match in order and size the signals in enum target_signal
1412 {"SIGHUP", "Hangup"},
1413 {"SIGINT", "Interrupt"},
1414 {"SIGQUIT", "Quit"},
1415 {"SIGILL", "Illegal instruction"},
1416 {"SIGTRAP", "Trace/breakpoint trap"},
1417 {"SIGABRT", "Aborted"},
1418 {"SIGEMT", "Emulation trap"},
1419 {"SIGFPE", "Arithmetic exception"},
1420 {"SIGKILL", "Killed"},
1421 {"SIGBUS", "Bus error"},
1422 {"SIGSEGV", "Segmentation fault"},
1423 {"SIGSYS", "Bad system call"},
1424 {"SIGPIPE", "Broken pipe"},
1425 {"SIGALRM", "Alarm clock"},
1426 {"SIGTERM", "Terminated"},
1427 {"SIGURG", "Urgent I/O condition"},
1428 {"SIGSTOP", "Stopped (signal)"},
1429 {"SIGTSTP", "Stopped (user)"},
1430 {"SIGCONT", "Continued"},
1431 {"SIGCHLD", "Child status changed"},
1432 {"SIGTTIN", "Stopped (tty input)"},
1433 {"SIGTTOU", "Stopped (tty output)"},
1434 {"SIGIO", "I/O possible"},
1435 {"SIGXCPU", "CPU time limit exceeded"},
1436 {"SIGXFSZ", "File size limit exceeded"},
1437 {"SIGVTALRM", "Virtual timer expired"},
1438 {"SIGPROF", "Profiling timer expired"},
1439 {"SIGWINCH", "Window size changed"},
1440 {"SIGLOST", "Resource lost"},
1441 {"SIGUSR1", "User defined signal 1"},
1442 {"SIGUSR2", "User defined signal 2"},
1443 {"SIGPWR", "Power fail/restart"},
1444 {"SIGPOLL", "Pollable event occurred"},
1445 {"SIGWIND", "SIGWIND"},
1446 {"SIGPHONE", "SIGPHONE"},
1447 {"SIGWAITING", "Process's LWPs are blocked"},
1448 {"SIGLWP", "Signal LWP"},
1449 {"SIGDANGER", "Swap space dangerously low"},
1450 {"SIGGRANT", "Monitor mode granted"},
1451 {"SIGRETRACT", "Need to relinquish monitor mode"},
1452 {"SIGMSG", "Monitor mode data available"},
1453 {"SIGSOUND", "Sound completed"},
1454 {"SIGSAK", "Secure attention"},
1455 {"SIGPRIO", "SIGPRIO"},
1456 {"SIG33", "Real-time event 33"},
1457 {"SIG34", "Real-time event 34"},
1458 {"SIG35", "Real-time event 35"},
1459 {"SIG36", "Real-time event 36"},
1460 {"SIG37", "Real-time event 37"},
1461 {"SIG38", "Real-time event 38"},
1462 {"SIG39", "Real-time event 39"},
1463 {"SIG40", "Real-time event 40"},
1464 {"SIG41", "Real-time event 41"},
1465 {"SIG42", "Real-time event 42"},
1466 {"SIG43", "Real-time event 43"},
1467 {"SIG44", "Real-time event 44"},
1468 {"SIG45", "Real-time event 45"},
1469 {"SIG46", "Real-time event 46"},
1470 {"SIG47", "Real-time event 47"},
1471 {"SIG48", "Real-time event 48"},
1472 {"SIG49", "Real-time event 49"},
1473 {"SIG50", "Real-time event 50"},
1474 {"SIG51", "Real-time event 51"},
1475 {"SIG52", "Real-time event 52"},
1476 {"SIG53", "Real-time event 53"},
1477 {"SIG54", "Real-time event 54"},
1478 {"SIG55", "Real-time event 55"},
1479 {"SIG56", "Real-time event 56"},
1480 {"SIG57", "Real-time event 57"},
1481 {"SIG58", "Real-time event 58"},
1482 {"SIG59", "Real-time event 59"},
1483 {"SIG60", "Real-time event 60"},
1484 {"SIG61", "Real-time event 61"},
1485 {"SIG62", "Real-time event 62"},
1486 {"SIG63", "Real-time event 63"},
1487 {"SIGCANCEL", "LWP internal signal"},
1488 {"SIG32", "Real-time event 32"},
1489 {"SIG64", "Real-time event 64"},
1491 #if defined(MACH) || defined(__MACH__)
1492 /* Mach exceptions */
1493 {"EXC_BAD_ACCESS", "Could not access memory"},
1494 {"EXC_BAD_INSTRUCTION", "Illegal instruction/operand"},
1495 {"EXC_ARITHMETIC", "Arithmetic exception"},
1496 {"EXC_EMULATION", "Emulation instruction"},
1497 {"EXC_SOFTWARE", "Software generated exception"},
1498 {"EXC_BREAKPOINT", "Breakpoint"},
1500 {"SIGINFO", "Information request"},
1502 {NULL
, "Unknown signal"},
1503 {NULL
, "Internal error: printing TARGET_SIGNAL_DEFAULT"},
1505 /* Last entry, used to check whether the table is the right size. */
1506 {NULL
, "TARGET_SIGNAL_MAGIC"}
1512 /* Return the string for a signal. */
1514 target_signal_to_string (enum target_signal sig
)
1516 if ((sig
>= TARGET_SIGNAL_FIRST
) && (sig
<= TARGET_SIGNAL_LAST
))
1517 return signals
[sig
].string
;
1519 return signals
[TARGET_SIGNAL_UNKNOWN
].string
;
1522 /* Return the name for a signal. */
1524 target_signal_to_name (enum target_signal sig
)
1526 if (sig
== TARGET_SIGNAL_UNKNOWN
)
1527 /* I think the code which prints this will always print it along with
1528 the string, so no need to be verbose. */
1530 return signals
[sig
].name
;
1533 /* Given a name, return its signal. */
1535 target_signal_from_name (char *name
)
1537 enum target_signal sig
;
1539 /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
1540 for TARGET_SIGNAL_SIGCHLD. SIGIOT, on the other hand, is more
1541 questionable; seems like by now people should call it SIGABRT
1544 /* This ugly cast brought to you by the native VAX compiler. */
1545 for (sig
= TARGET_SIGNAL_HUP
;
1546 signals
[sig
].name
!= NULL
;
1547 sig
= (enum target_signal
) ((int) sig
+ 1))
1548 if (STREQ (name
, signals
[sig
].name
))
1550 return TARGET_SIGNAL_UNKNOWN
;
1553 /* The following functions are to help certain targets deal
1554 with the signal/waitstatus stuff. They could just as well be in
1555 a file called native-utils.c or unixwaitstatus-utils.c or whatever. */
1557 /* Convert host signal to our signals. */
1559 target_signal_from_host (int hostsig
)
1561 /* A switch statement would make sense but would require special kludges
1562 to deal with the cases where more than one signal has the same number. */
1565 return TARGET_SIGNAL_0
;
1567 #if defined (SIGHUP)
1568 if (hostsig
== SIGHUP
)
1569 return TARGET_SIGNAL_HUP
;
1571 #if defined (SIGINT)
1572 if (hostsig
== SIGINT
)
1573 return TARGET_SIGNAL_INT
;
1575 #if defined (SIGQUIT)
1576 if (hostsig
== SIGQUIT
)
1577 return TARGET_SIGNAL_QUIT
;
1579 #if defined (SIGILL)
1580 if (hostsig
== SIGILL
)
1581 return TARGET_SIGNAL_ILL
;
1583 #if defined (SIGTRAP)
1584 if (hostsig
== SIGTRAP
)
1585 return TARGET_SIGNAL_TRAP
;
1587 #if defined (SIGABRT)
1588 if (hostsig
== SIGABRT
)
1589 return TARGET_SIGNAL_ABRT
;
1591 #if defined (SIGEMT)
1592 if (hostsig
== SIGEMT
)
1593 return TARGET_SIGNAL_EMT
;
1595 #if defined (SIGFPE)
1596 if (hostsig
== SIGFPE
)
1597 return TARGET_SIGNAL_FPE
;
1599 #if defined (SIGKILL)
1600 if (hostsig
== SIGKILL
)
1601 return TARGET_SIGNAL_KILL
;
1603 #if defined (SIGBUS)
1604 if (hostsig
== SIGBUS
)
1605 return TARGET_SIGNAL_BUS
;
1607 #if defined (SIGSEGV)
1608 if (hostsig
== SIGSEGV
)
1609 return TARGET_SIGNAL_SEGV
;
1611 #if defined (SIGSYS)
1612 if (hostsig
== SIGSYS
)
1613 return TARGET_SIGNAL_SYS
;
1615 #if defined (SIGPIPE)
1616 if (hostsig
== SIGPIPE
)
1617 return TARGET_SIGNAL_PIPE
;
1619 #if defined (SIGALRM)
1620 if (hostsig
== SIGALRM
)
1621 return TARGET_SIGNAL_ALRM
;
1623 #if defined (SIGTERM)
1624 if (hostsig
== SIGTERM
)
1625 return TARGET_SIGNAL_TERM
;
1627 #if defined (SIGUSR1)
1628 if (hostsig
== SIGUSR1
)
1629 return TARGET_SIGNAL_USR1
;
1631 #if defined (SIGUSR2)
1632 if (hostsig
== SIGUSR2
)
1633 return TARGET_SIGNAL_USR2
;
1635 #if defined (SIGCLD)
1636 if (hostsig
== SIGCLD
)
1637 return TARGET_SIGNAL_CHLD
;
1639 #if defined (SIGCHLD)
1640 if (hostsig
== SIGCHLD
)
1641 return TARGET_SIGNAL_CHLD
;
1643 #if defined (SIGPWR)
1644 if (hostsig
== SIGPWR
)
1645 return TARGET_SIGNAL_PWR
;
1647 #if defined (SIGWINCH)
1648 if (hostsig
== SIGWINCH
)
1649 return TARGET_SIGNAL_WINCH
;
1651 #if defined (SIGURG)
1652 if (hostsig
== SIGURG
)
1653 return TARGET_SIGNAL_URG
;
1656 if (hostsig
== SIGIO
)
1657 return TARGET_SIGNAL_IO
;
1659 #if defined (SIGPOLL)
1660 if (hostsig
== SIGPOLL
)
1661 return TARGET_SIGNAL_POLL
;
1663 #if defined (SIGSTOP)
1664 if (hostsig
== SIGSTOP
)
1665 return TARGET_SIGNAL_STOP
;
1667 #if defined (SIGTSTP)
1668 if (hostsig
== SIGTSTP
)
1669 return TARGET_SIGNAL_TSTP
;
1671 #if defined (SIGCONT)
1672 if (hostsig
== SIGCONT
)
1673 return TARGET_SIGNAL_CONT
;
1675 #if defined (SIGTTIN)
1676 if (hostsig
== SIGTTIN
)
1677 return TARGET_SIGNAL_TTIN
;
1679 #if defined (SIGTTOU)
1680 if (hostsig
== SIGTTOU
)
1681 return TARGET_SIGNAL_TTOU
;
1683 #if defined (SIGVTALRM)
1684 if (hostsig
== SIGVTALRM
)
1685 return TARGET_SIGNAL_VTALRM
;
1687 #if defined (SIGPROF)
1688 if (hostsig
== SIGPROF
)
1689 return TARGET_SIGNAL_PROF
;
1691 #if defined (SIGXCPU)
1692 if (hostsig
== SIGXCPU
)
1693 return TARGET_SIGNAL_XCPU
;
1695 #if defined (SIGXFSZ)
1696 if (hostsig
== SIGXFSZ
)
1697 return TARGET_SIGNAL_XFSZ
;
1699 #if defined (SIGWIND)
1700 if (hostsig
== SIGWIND
)
1701 return TARGET_SIGNAL_WIND
;
1703 #if defined (SIGPHONE)
1704 if (hostsig
== SIGPHONE
)
1705 return TARGET_SIGNAL_PHONE
;
1707 #if defined (SIGLOST)
1708 if (hostsig
== SIGLOST
)
1709 return TARGET_SIGNAL_LOST
;
1711 #if defined (SIGWAITING)
1712 if (hostsig
== SIGWAITING
)
1713 return TARGET_SIGNAL_WAITING
;
1715 #if defined (SIGCANCEL)
1716 if (hostsig
== SIGCANCEL
)
1717 return TARGET_SIGNAL_CANCEL
;
1719 #if defined (SIGLWP)
1720 if (hostsig
== SIGLWP
)
1721 return TARGET_SIGNAL_LWP
;
1723 #if defined (SIGDANGER)
1724 if (hostsig
== SIGDANGER
)
1725 return TARGET_SIGNAL_DANGER
;
1727 #if defined (SIGGRANT)
1728 if (hostsig
== SIGGRANT
)
1729 return TARGET_SIGNAL_GRANT
;
1731 #if defined (SIGRETRACT)
1732 if (hostsig
== SIGRETRACT
)
1733 return TARGET_SIGNAL_RETRACT
;
1735 #if defined (SIGMSG)
1736 if (hostsig
== SIGMSG
)
1737 return TARGET_SIGNAL_MSG
;
1739 #if defined (SIGSOUND)
1740 if (hostsig
== SIGSOUND
)
1741 return TARGET_SIGNAL_SOUND
;
1743 #if defined (SIGSAK)
1744 if (hostsig
== SIGSAK
)
1745 return TARGET_SIGNAL_SAK
;
1747 #if defined (SIGPRIO)
1748 if (hostsig
== SIGPRIO
)
1749 return TARGET_SIGNAL_PRIO
;
1752 /* Mach exceptions. Assumes that the values for EXC_ are positive! */
1753 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
1754 if (hostsig
== _NSIG
+ EXC_BAD_ACCESS
)
1755 return TARGET_EXC_BAD_ACCESS
;
1757 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
1758 if (hostsig
== _NSIG
+ EXC_BAD_INSTRUCTION
)
1759 return TARGET_EXC_BAD_INSTRUCTION
;
1761 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
1762 if (hostsig
== _NSIG
+ EXC_ARITHMETIC
)
1763 return TARGET_EXC_ARITHMETIC
;
1765 #if defined (EXC_EMULATION) && defined (_NSIG)
1766 if (hostsig
== _NSIG
+ EXC_EMULATION
)
1767 return TARGET_EXC_EMULATION
;
1769 #if defined (EXC_SOFTWARE) && defined (_NSIG)
1770 if (hostsig
== _NSIG
+ EXC_SOFTWARE
)
1771 return TARGET_EXC_SOFTWARE
;
1773 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
1774 if (hostsig
== _NSIG
+ EXC_BREAKPOINT
)
1775 return TARGET_EXC_BREAKPOINT
;
1778 #if defined (SIGINFO)
1779 if (hostsig
== SIGINFO
)
1780 return TARGET_SIGNAL_INFO
;
1783 #if defined (REALTIME_LO)
1784 if (hostsig
>= REALTIME_LO
&& hostsig
< REALTIME_HI
)
1786 /* This block of TARGET_SIGNAL_REALTIME value is in order. */
1787 if (33 <= hostsig
&& hostsig
<= 63)
1788 return (enum target_signal
)
1789 (hostsig
- 33 + (int) TARGET_SIGNAL_REALTIME_33
);
1790 else if (hostsig
== 32)
1791 return TARGET_SIGNAL_REALTIME_32
;
1793 error ("GDB bug: target.c (target_signal_from_host): unrecognized real-time signal");
1797 #if defined (SIGRTMIN)
1798 if (hostsig
>= SIGRTMIN
&& hostsig
<= SIGRTMAX
)
1800 /* This block of TARGET_SIGNAL_REALTIME value is in order. */
1801 if (33 <= hostsig
&& hostsig
<= 63)
1802 return (enum target_signal
)
1803 (hostsig
- 33 + (int) TARGET_SIGNAL_REALTIME_33
);
1804 else if (hostsig
== 64)
1805 return TARGET_SIGNAL_REALTIME_64
;
1807 error ("GDB bug: target.c (target_signal_from_host): unrecognized real-time signal");
1810 return TARGET_SIGNAL_UNKNOWN
;
1813 /* Convert a OURSIG (an enum target_signal) to the form used by the
1814 target operating system (refered to as the ``host'') or zero if the
1815 equivalent host signal is not available. Set/clear OURSIG_OK
1819 do_target_signal_to_host (enum target_signal oursig
,
1825 case TARGET_SIGNAL_0
:
1828 #if defined (SIGHUP)
1829 case TARGET_SIGNAL_HUP
:
1832 #if defined (SIGINT)
1833 case TARGET_SIGNAL_INT
:
1836 #if defined (SIGQUIT)
1837 case TARGET_SIGNAL_QUIT
:
1840 #if defined (SIGILL)
1841 case TARGET_SIGNAL_ILL
:
1844 #if defined (SIGTRAP)
1845 case TARGET_SIGNAL_TRAP
:
1848 #if defined (SIGABRT)
1849 case TARGET_SIGNAL_ABRT
:
1852 #if defined (SIGEMT)
1853 case TARGET_SIGNAL_EMT
:
1856 #if defined (SIGFPE)
1857 case TARGET_SIGNAL_FPE
:
1860 #if defined (SIGKILL)
1861 case TARGET_SIGNAL_KILL
:
1864 #if defined (SIGBUS)
1865 case TARGET_SIGNAL_BUS
:
1868 #if defined (SIGSEGV)
1869 case TARGET_SIGNAL_SEGV
:
1872 #if defined (SIGSYS)
1873 case TARGET_SIGNAL_SYS
:
1876 #if defined (SIGPIPE)
1877 case TARGET_SIGNAL_PIPE
:
1880 #if defined (SIGALRM)
1881 case TARGET_SIGNAL_ALRM
:
1884 #if defined (SIGTERM)
1885 case TARGET_SIGNAL_TERM
:
1888 #if defined (SIGUSR1)
1889 case TARGET_SIGNAL_USR1
:
1892 #if defined (SIGUSR2)
1893 case TARGET_SIGNAL_USR2
:
1896 #if defined (SIGCHLD) || defined (SIGCLD)
1897 case TARGET_SIGNAL_CHLD
:
1898 #if defined (SIGCHLD)
1903 #endif /* SIGCLD or SIGCHLD */
1904 #if defined (SIGPWR)
1905 case TARGET_SIGNAL_PWR
:
1908 #if defined (SIGWINCH)
1909 case TARGET_SIGNAL_WINCH
:
1912 #if defined (SIGURG)
1913 case TARGET_SIGNAL_URG
:
1917 case TARGET_SIGNAL_IO
:
1920 #if defined (SIGPOLL)
1921 case TARGET_SIGNAL_POLL
:
1924 #if defined (SIGSTOP)
1925 case TARGET_SIGNAL_STOP
:
1928 #if defined (SIGTSTP)
1929 case TARGET_SIGNAL_TSTP
:
1932 #if defined (SIGCONT)
1933 case TARGET_SIGNAL_CONT
:
1936 #if defined (SIGTTIN)
1937 case TARGET_SIGNAL_TTIN
:
1940 #if defined (SIGTTOU)
1941 case TARGET_SIGNAL_TTOU
:
1944 #if defined (SIGVTALRM)
1945 case TARGET_SIGNAL_VTALRM
:
1948 #if defined (SIGPROF)
1949 case TARGET_SIGNAL_PROF
:
1952 #if defined (SIGXCPU)
1953 case TARGET_SIGNAL_XCPU
:
1956 #if defined (SIGXFSZ)
1957 case TARGET_SIGNAL_XFSZ
:
1960 #if defined (SIGWIND)
1961 case TARGET_SIGNAL_WIND
:
1964 #if defined (SIGPHONE)
1965 case TARGET_SIGNAL_PHONE
:
1968 #if defined (SIGLOST)
1969 case TARGET_SIGNAL_LOST
:
1972 #if defined (SIGWAITING)
1973 case TARGET_SIGNAL_WAITING
:
1976 #if defined (SIGCANCEL)
1977 case TARGET_SIGNAL_CANCEL
:
1980 #if defined (SIGLWP)
1981 case TARGET_SIGNAL_LWP
:
1984 #if defined (SIGDANGER)
1985 case TARGET_SIGNAL_DANGER
:
1988 #if defined (SIGGRANT)
1989 case TARGET_SIGNAL_GRANT
:
1992 #if defined (SIGRETRACT)
1993 case TARGET_SIGNAL_RETRACT
:
1996 #if defined (SIGMSG)
1997 case TARGET_SIGNAL_MSG
:
2000 #if defined (SIGSOUND)
2001 case TARGET_SIGNAL_SOUND
:
2004 #if defined (SIGSAK)
2005 case TARGET_SIGNAL_SAK
:
2008 #if defined (SIGPRIO)
2009 case TARGET_SIGNAL_PRIO
:
2013 /* Mach exceptions. Assumes that the values for EXC_ are positive! */
2014 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
2015 case TARGET_EXC_BAD_ACCESS
:
2016 return _NSIG
+ EXC_BAD_ACCESS
;
2018 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
2019 case TARGET_EXC_BAD_INSTRUCTION
:
2020 return _NSIG
+ EXC_BAD_INSTRUCTION
;
2022 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
2023 case TARGET_EXC_ARITHMETIC
:
2024 return _NSIG
+ EXC_ARITHMETIC
;
2026 #if defined (EXC_EMULATION) && defined (_NSIG)
2027 case TARGET_EXC_EMULATION
:
2028 return _NSIG
+ EXC_EMULATION
;
2030 #if defined (EXC_SOFTWARE) && defined (_NSIG)
2031 case TARGET_EXC_SOFTWARE
:
2032 return _NSIG
+ EXC_SOFTWARE
;
2034 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
2035 case TARGET_EXC_BREAKPOINT
:
2036 return _NSIG
+ EXC_BREAKPOINT
;
2039 #if defined (SIGINFO)
2040 case TARGET_SIGNAL_INFO
:
2045 #if defined (REALTIME_LO)
2046 if (oursig
>= TARGET_SIGNAL_REALTIME_33
2047 && oursig
<= TARGET_SIGNAL_REALTIME_63
)
2049 /* This block of signals is continuous, and
2050 TARGET_SIGNAL_REALTIME_33 is 33 by definition. */
2052 (int) oursig
- (int) TARGET_SIGNAL_REALTIME_33
+ 33;
2053 if (retsig
>= REALTIME_LO
&& retsig
< REALTIME_HI
)
2056 #if (REALTIME_LO < 33)
2057 else if (oursig
== TARGET_SIGNAL_REALTIME_32
)
2059 /* TARGET_SIGNAL_REALTIME_32 isn't contiguous with
2060 TARGET_SIGNAL_REALTIME_33. It is 32 by definition. */
2066 #if defined (SIGRTMIN)
2067 if (oursig
>= TARGET_SIGNAL_REALTIME_33
2068 && oursig
<= TARGET_SIGNAL_REALTIME_63
)
2070 /* This block of signals is continuous, and
2071 TARGET_SIGNAL_REALTIME_33 is 33 by definition. */
2073 (int) oursig
- (int) TARGET_SIGNAL_REALTIME_33
+ 33;
2074 if (retsig
>= SIGRTMIN
&& retsig
<= SIGRTMAX
)
2077 else if (oursig
== TARGET_SIGNAL_REALTIME_64
)
2086 target_signal_to_host_p (enum target_signal oursig
)
2089 do_target_signal_to_host (oursig
, &oursig_ok
);
2094 target_signal_to_host (enum target_signal oursig
)
2097 int targ_signo
= do_target_signal_to_host (oursig
, &oursig_ok
);
2100 /* The user might be trying to do "signal SIGSAK" where this system
2101 doesn't have SIGSAK. */
2102 warning ("Signal %s does not exist on this system.\n",
2103 target_signal_to_name (oursig
));
2110 /* Helper function for child_wait and the Lynx derivatives of child_wait.
2111 HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
2112 translation of that in OURSTATUS. */
2114 store_waitstatus (struct target_waitstatus
*ourstatus
, int hoststatus
)
2116 #ifdef CHILD_SPECIAL_WAITSTATUS
2117 /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS
2118 if it wants to deal with hoststatus. */
2119 if (CHILD_SPECIAL_WAITSTATUS (ourstatus
, hoststatus
))
2123 if (WIFEXITED (hoststatus
))
2125 ourstatus
->kind
= TARGET_WAITKIND_EXITED
;
2126 ourstatus
->value
.integer
= WEXITSTATUS (hoststatus
);
2128 else if (!WIFSTOPPED (hoststatus
))
2130 ourstatus
->kind
= TARGET_WAITKIND_SIGNALLED
;
2131 ourstatus
->value
.sig
= target_signal_from_host (WTERMSIG (hoststatus
));
2135 ourstatus
->kind
= TARGET_WAITKIND_STOPPED
;
2136 ourstatus
->value
.sig
= target_signal_from_host (WSTOPSIG (hoststatus
));
2140 /* In some circumstances we allow a command to specify a numeric
2141 signal. The idea is to keep these circumstances limited so that
2142 users (and scripts) develop portable habits. For comparison,
2143 POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
2144 numeric signal at all is obsolescent. We are slightly more
2145 lenient and allow 1-15 which should match host signal numbers on
2146 most systems. Use of symbolic signal names is strongly encouraged. */
2149 target_signal_from_command (int num
)
2151 if (num
>= 1 && num
<= 15)
2152 return (enum target_signal
) num
;
2153 error ("Only signals 1-15 are valid as numeric signals.\n\
2154 Use \"info signals\" for a list of symbolic signals.");
2157 /* Returns zero to leave the inferior alone, one to interrupt it. */
2158 int (*target_activity_function
) (void);
2159 int target_activity_fd
;
2161 /* Convert a normal process ID to a string. Returns the string in a static
2165 normal_pid_to_str (int pid
)
2167 static char buf
[30];
2169 if (STREQ (current_target
.to_shortname
, "remote"))
2170 sprintf (buf
, "thread %d", pid
);
2172 sprintf (buf
, "process %d", pid
);
2177 /* Some targets (such as ttrace-based HPUX) don't allow us to request
2178 notification of inferior events such as fork and vork immediately
2179 after the inferior is created. (This because of how gdb gets an
2180 inferior created via invoking a shell to do it. In such a scenario,
2181 if the shell init file has commands in it, the shell will fork and
2182 exec for each of those commands, and we will see each such fork
2185 This function is used by all targets that allow us to request
2186 notification of forks, etc at inferior creation time; e.g., in
2187 target_acknowledge_forked_child.
2190 normal_target_post_startup_inferior (int pid
)
2192 /* This space intentionally left blank. */
2195 /* Set up the handful of non-empty slots needed by the dummy target
2199 init_dummy_target (void)
2201 dummy_target
.to_shortname
= "None";
2202 dummy_target
.to_longname
= "None";
2203 dummy_target
.to_doc
= "";
2204 dummy_target
.to_attach
= find_default_attach
;
2205 dummy_target
.to_require_attach
= find_default_require_attach
;
2206 dummy_target
.to_require_detach
= find_default_require_detach
;
2207 dummy_target
.to_create_inferior
= find_default_create_inferior
;
2208 dummy_target
.to_clone_and_follow_inferior
= find_default_clone_and_follow_inferior
;
2209 dummy_target
.to_pid_to_str
= normal_pid_to_str
;
2210 dummy_target
.to_stratum
= dummy_stratum
;
2211 dummy_target
.to_magic
= OPS_MAGIC
;
2215 static struct target_ops debug_target
;
2218 debug_to_open (char *args
, int from_tty
)
2220 debug_target
.to_open (args
, from_tty
);
2222 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
2226 debug_to_close (int quitting
)
2228 debug_target
.to_close (quitting
);
2230 fprintf_unfiltered (gdb_stdlog
, "target_close (%d)\n", quitting
);
2234 debug_to_attach (char *args
, int from_tty
)
2236 debug_target
.to_attach (args
, from_tty
);
2238 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n", args
, from_tty
);
2243 debug_to_post_attach (int pid
)
2245 debug_target
.to_post_attach (pid
);
2247 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
2251 debug_to_require_attach (char *args
, int from_tty
)
2253 debug_target
.to_require_attach (args
, from_tty
);
2255 fprintf_unfiltered (gdb_stdlog
,
2256 "target_require_attach (%s, %d)\n", args
, from_tty
);
2260 debug_to_detach (char *args
, int from_tty
)
2262 debug_target
.to_detach (args
, from_tty
);
2264 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n", args
, from_tty
);
2268 debug_to_require_detach (int pid
, char *args
, int from_tty
)
2270 debug_target
.to_require_detach (pid
, args
, from_tty
);
2272 fprintf_unfiltered (gdb_stdlog
,
2273 "target_require_detach (%d, %s, %d)\n", pid
, args
, from_tty
);
2277 debug_to_resume (int pid
, int step
, enum target_signal siggnal
)
2279 debug_target
.to_resume (pid
, step
, siggnal
);
2281 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n", pid
,
2282 step
? "step" : "continue",
2283 target_signal_to_name (siggnal
));
2287 debug_to_wait (int pid
, struct target_waitstatus
*status
)
2291 retval
= debug_target
.to_wait (pid
, status
);
2293 fprintf_unfiltered (gdb_stdlog
,
2294 "target_wait (%d, status) = %d, ", pid
, retval
);
2295 fprintf_unfiltered (gdb_stdlog
, "status->kind = ");
2296 switch (status
->kind
)
2298 case TARGET_WAITKIND_EXITED
:
2299 fprintf_unfiltered (gdb_stdlog
, "exited, status = %d\n",
2300 status
->value
.integer
);
2302 case TARGET_WAITKIND_STOPPED
:
2303 fprintf_unfiltered (gdb_stdlog
, "stopped, signal = %s\n",
2304 target_signal_to_name (status
->value
.sig
));
2306 case TARGET_WAITKIND_SIGNALLED
:
2307 fprintf_unfiltered (gdb_stdlog
, "signalled, signal = %s\n",
2308 target_signal_to_name (status
->value
.sig
));
2310 case TARGET_WAITKIND_LOADED
:
2311 fprintf_unfiltered (gdb_stdlog
, "loaded\n");
2313 case TARGET_WAITKIND_FORKED
:
2314 fprintf_unfiltered (gdb_stdlog
, "forked\n");
2316 case TARGET_WAITKIND_VFORKED
:
2317 fprintf_unfiltered (gdb_stdlog
, "vforked\n");
2319 case TARGET_WAITKIND_EXECD
:
2320 fprintf_unfiltered (gdb_stdlog
, "execd\n");
2322 case TARGET_WAITKIND_SPURIOUS
:
2323 fprintf_unfiltered (gdb_stdlog
, "spurious\n");
2326 fprintf_unfiltered (gdb_stdlog
, "unknown???\n");
2334 debug_to_post_wait (int pid
, int status
)
2336 debug_target
.to_post_wait (pid
, status
);
2338 fprintf_unfiltered (gdb_stdlog
, "target_post_wait (%d, %d)\n",
2343 debug_to_fetch_registers (int regno
)
2345 debug_target
.to_fetch_registers (regno
);
2347 fprintf_unfiltered (gdb_stdlog
, "target_fetch_registers (%s)",
2348 regno
!= -1 ? REGISTER_NAME (regno
) : "-1");
2350 fprintf_unfiltered (gdb_stdlog
, " = 0x%lx %ld",
2351 (unsigned long) read_register (regno
),
2352 (unsigned long) read_register (regno
));
2353 fprintf_unfiltered (gdb_stdlog
, "\n");
2357 debug_to_store_registers (int regno
)
2359 debug_target
.to_store_registers (regno
);
2361 if (regno
>= 0 && regno
< NUM_REGS
)
2362 fprintf_unfiltered (gdb_stdlog
, "target_store_registers (%s) = 0x%lx %ld\n",
2363 REGISTER_NAME (regno
),
2364 (unsigned long) read_register (regno
),
2365 (unsigned long) read_register (regno
));
2367 fprintf_unfiltered (gdb_stdlog
, "target_store_registers (%d)\n", regno
);
2371 debug_to_prepare_to_store (void)
2373 debug_target
.to_prepare_to_store ();
2375 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
2379 debug_to_xfer_memory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
,
2380 struct mem_attrib
*attrib
,
2381 struct target_ops
*target
)
2385 retval
= debug_target
.to_xfer_memory (memaddr
, myaddr
, len
, write
,
2388 fprintf_unfiltered (gdb_stdlog
,
2389 "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d",
2390 (unsigned int) memaddr
, /* possable truncate long long */
2391 len
, write
? "write" : "read", retval
);
2399 fputs_unfiltered (", bytes =", gdb_stdlog
);
2400 for (i
= 0; i
< retval
; i
++)
2402 if ((((long) &(myaddr
[i
])) & 0xf) == 0)
2403 fprintf_unfiltered (gdb_stdlog
, "\n");
2404 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
2408 fputc_unfiltered ('\n', gdb_stdlog
);
2414 debug_to_files_info (struct target_ops
*target
)
2416 debug_target
.to_files_info (target
);
2418 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
2422 debug_to_insert_breakpoint (CORE_ADDR addr
, char *save
)
2426 retval
= debug_target
.to_insert_breakpoint (addr
, save
);
2428 fprintf_unfiltered (gdb_stdlog
,
2429 "target_insert_breakpoint (0x%lx, xxx) = %ld\n",
2430 (unsigned long) addr
,
2431 (unsigned long) retval
);
2436 debug_to_remove_breakpoint (CORE_ADDR addr
, char *save
)
2440 retval
= debug_target
.to_remove_breakpoint (addr
, save
);
2442 fprintf_unfiltered (gdb_stdlog
,
2443 "target_remove_breakpoint (0x%lx, xxx) = %ld\n",
2444 (unsigned long) addr
,
2445 (unsigned long) retval
);
2450 debug_to_terminal_init (void)
2452 debug_target
.to_terminal_init ();
2454 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
2458 debug_to_terminal_inferior (void)
2460 debug_target
.to_terminal_inferior ();
2462 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
2466 debug_to_terminal_ours_for_output (void)
2468 debug_target
.to_terminal_ours_for_output ();
2470 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
2474 debug_to_terminal_ours (void)
2476 debug_target
.to_terminal_ours ();
2478 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
2482 debug_to_terminal_info (char *arg
, int from_tty
)
2484 debug_target
.to_terminal_info (arg
, from_tty
);
2486 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
2491 debug_to_kill (void)
2493 debug_target
.to_kill ();
2495 fprintf_unfiltered (gdb_stdlog
, "target_kill ()\n");
2499 debug_to_load (char *args
, int from_tty
)
2501 debug_target
.to_load (args
, from_tty
);
2503 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
2507 debug_to_lookup_symbol (char *name
, CORE_ADDR
*addrp
)
2511 retval
= debug_target
.to_lookup_symbol (name
, addrp
);
2513 fprintf_unfiltered (gdb_stdlog
, "target_lookup_symbol (%s, xxx)\n", name
);
2519 debug_to_create_inferior (char *exec_file
, char *args
, char **env
)
2521 debug_target
.to_create_inferior (exec_file
, args
, env
);
2523 fprintf_unfiltered (gdb_stdlog
, "target_create_inferior (%s, %s, xxx)\n",
2528 debug_to_post_startup_inferior (int pid
)
2530 debug_target
.to_post_startup_inferior (pid
);
2532 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
2537 debug_to_acknowledge_created_inferior (int pid
)
2539 debug_target
.to_acknowledge_created_inferior (pid
);
2541 fprintf_unfiltered (gdb_stdlog
, "target_acknowledge_created_inferior (%d)\n",
2546 debug_to_clone_and_follow_inferior (int child_pid
, int *followed_child
)
2548 debug_target
.to_clone_and_follow_inferior (child_pid
, followed_child
);
2550 fprintf_unfiltered (gdb_stdlog
,
2551 "target_clone_and_follow_inferior (%d, %d)\n",
2552 child_pid
, *followed_child
);
2556 debug_to_post_follow_inferior_by_clone (void)
2558 debug_target
.to_post_follow_inferior_by_clone ();
2560 fprintf_unfiltered (gdb_stdlog
, "target_post_follow_inferior_by_clone ()\n");
2564 debug_to_insert_fork_catchpoint (int pid
)
2568 retval
= debug_target
.to_insert_fork_catchpoint (pid
);
2570 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d) = %d\n",
2577 debug_to_remove_fork_catchpoint (int pid
)
2581 retval
= debug_target
.to_remove_fork_catchpoint (pid
);
2583 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
2590 debug_to_insert_vfork_catchpoint (int pid
)
2594 retval
= debug_target
.to_insert_vfork_catchpoint (pid
);
2596 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d)= %d\n",
2603 debug_to_remove_vfork_catchpoint (int pid
)
2607 retval
= debug_target
.to_remove_vfork_catchpoint (pid
);
2609 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
2616 debug_to_has_forked (int pid
, int *child_pid
)
2620 has_forked
= debug_target
.to_has_forked (pid
, child_pid
);
2622 fprintf_unfiltered (gdb_stdlog
, "target_has_forked (%d, %d) = %d\n",
2623 pid
, *child_pid
, has_forked
);
2629 debug_to_has_vforked (int pid
, int *child_pid
)
2633 has_vforked
= debug_target
.to_has_vforked (pid
, child_pid
);
2635 fprintf_unfiltered (gdb_stdlog
, "target_has_vforked (%d, %d) = %d\n",
2636 pid
, *child_pid
, has_vforked
);
2642 debug_to_can_follow_vfork_prior_to_exec (void)
2644 int can_immediately_follow_vfork
;
2646 can_immediately_follow_vfork
= debug_target
.to_can_follow_vfork_prior_to_exec ();
2648 fprintf_unfiltered (gdb_stdlog
, "target_can_follow_vfork_prior_to_exec () = %d\n",
2649 can_immediately_follow_vfork
);
2651 return can_immediately_follow_vfork
;
2655 debug_to_post_follow_vfork (int parent_pid
, int followed_parent
, int child_pid
,
2658 debug_target
.to_post_follow_vfork (parent_pid
, followed_parent
, child_pid
, followed_child
);
2660 fprintf_unfiltered (gdb_stdlog
,
2661 "target_post_follow_vfork (%d, %d, %d, %d)\n",
2662 parent_pid
, followed_parent
, child_pid
, followed_child
);
2666 debug_to_insert_exec_catchpoint (int pid
)
2670 retval
= debug_target
.to_insert_exec_catchpoint (pid
);
2672 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d) = %d\n",
2679 debug_to_remove_exec_catchpoint (int pid
)
2683 retval
= debug_target
.to_remove_exec_catchpoint (pid
);
2685 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
2692 debug_to_has_execd (int pid
, char **execd_pathname
)
2696 has_execd
= debug_target
.to_has_execd (pid
, execd_pathname
);
2698 fprintf_unfiltered (gdb_stdlog
, "target_has_execd (%d, %s) = %d\n",
2699 pid
, (*execd_pathname
? *execd_pathname
: "<NULL>"),
2706 debug_to_reported_exec_events_per_exec_call (void)
2708 int reported_exec_events
;
2710 reported_exec_events
= debug_target
.to_reported_exec_events_per_exec_call ();
2712 fprintf_unfiltered (gdb_stdlog
,
2713 "target_reported_exec_events_per_exec_call () = %d\n",
2714 reported_exec_events
);
2716 return reported_exec_events
;
2720 debug_to_has_syscall_event (int pid
, enum target_waitkind
*kind
,
2723 int has_syscall_event
;
2724 char *kind_spelling
= "??";
2726 has_syscall_event
= debug_target
.to_has_syscall_event (pid
, kind
, syscall_id
);
2727 if (has_syscall_event
)
2731 case TARGET_WAITKIND_SYSCALL_ENTRY
:
2732 kind_spelling
= "SYSCALL_ENTRY";
2734 case TARGET_WAITKIND_SYSCALL_RETURN
:
2735 kind_spelling
= "SYSCALL_RETURN";
2742 fprintf_unfiltered (gdb_stdlog
,
2743 "target_has_syscall_event (%d, %s, %d) = %d\n",
2744 pid
, kind_spelling
, *syscall_id
, has_syscall_event
);
2746 return has_syscall_event
;
2750 debug_to_has_exited (int pid
, int wait_status
, int *exit_status
)
2754 has_exited
= debug_target
.to_has_exited (pid
, wait_status
, exit_status
);
2756 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
2757 pid
, wait_status
, *exit_status
, has_exited
);
2763 debug_to_mourn_inferior (void)
2765 debug_target
.to_mourn_inferior ();
2767 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2771 debug_to_can_run (void)
2775 retval
= debug_target
.to_can_run ();
2777 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
2783 debug_to_notice_signals (int pid
)
2785 debug_target
.to_notice_signals (pid
);
2787 fprintf_unfiltered (gdb_stdlog
, "target_notice_signals (%d)\n", pid
);
2791 debug_to_thread_alive (int pid
)
2795 retval
= debug_target
.to_thread_alive (pid
);
2797 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
2804 debug_to_find_new_threads (void)
2806 debug_target
.to_find_new_threads ();
2808 fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog
);
2812 debug_to_stop (void)
2814 debug_target
.to_stop ();
2816 fprintf_unfiltered (gdb_stdlog
, "target_stop ()\n");
2820 debug_to_query (int type
, char *req
, char *resp
, int *siz
)
2824 retval
= debug_target
.to_query (type
, req
, resp
, siz
);
2826 fprintf_unfiltered (gdb_stdlog
, "target_query (%c, %s, %s, %d) = %d\n", type
, req
, resp
, *siz
, retval
);
2832 debug_to_rcmd (char *command
,
2833 struct ui_file
*outbuf
)
2835 debug_target
.to_rcmd (command
, outbuf
);
2836 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
2839 static struct symtab_and_line
*
2840 debug_to_enable_exception_callback (enum exception_event_kind kind
, int enable
)
2842 struct symtab_and_line
*result
;
2843 result
= debug_target
.to_enable_exception_callback (kind
, enable
);
2844 fprintf_unfiltered (gdb_stdlog
,
2845 "target get_exception_callback_sal (%d, %d)\n",
2850 static struct exception_event_record
*
2851 debug_to_get_current_exception_event (void)
2853 struct exception_event_record
*result
;
2854 result
= debug_target
.to_get_current_exception_event ();
2855 fprintf_unfiltered (gdb_stdlog
, "target get_current_exception_event ()\n");
2860 debug_to_pid_to_exec_file (int pid
)
2864 exec_file
= debug_target
.to_pid_to_exec_file (pid
);
2866 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
2873 setup_target_debug (void)
2875 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
2877 current_target
.to_open
= debug_to_open
;
2878 current_target
.to_close
= debug_to_close
;
2879 current_target
.to_attach
= debug_to_attach
;
2880 current_target
.to_post_attach
= debug_to_post_attach
;
2881 current_target
.to_require_attach
= debug_to_require_attach
;
2882 current_target
.to_detach
= debug_to_detach
;
2883 current_target
.to_require_detach
= debug_to_require_detach
;
2884 current_target
.to_resume
= debug_to_resume
;
2885 current_target
.to_wait
= debug_to_wait
;
2886 current_target
.to_post_wait
= debug_to_post_wait
;
2887 current_target
.to_fetch_registers
= debug_to_fetch_registers
;
2888 current_target
.to_store_registers
= debug_to_store_registers
;
2889 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
2890 current_target
.to_xfer_memory
= debug_to_xfer_memory
;
2891 current_target
.to_files_info
= debug_to_files_info
;
2892 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
2893 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
2894 current_target
.to_terminal_init
= debug_to_terminal_init
;
2895 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
2896 current_target
.to_terminal_ours_for_output
= debug_to_terminal_ours_for_output
;
2897 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
2898 current_target
.to_terminal_info
= debug_to_terminal_info
;
2899 current_target
.to_kill
= debug_to_kill
;
2900 current_target
.to_load
= debug_to_load
;
2901 current_target
.to_lookup_symbol
= debug_to_lookup_symbol
;
2902 current_target
.to_create_inferior
= debug_to_create_inferior
;
2903 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
2904 current_target
.to_acknowledge_created_inferior
= debug_to_acknowledge_created_inferior
;
2905 current_target
.to_clone_and_follow_inferior
= debug_to_clone_and_follow_inferior
;
2906 current_target
.to_post_follow_inferior_by_clone
= debug_to_post_follow_inferior_by_clone
;
2907 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
2908 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
2909 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
2910 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
2911 current_target
.to_has_forked
= debug_to_has_forked
;
2912 current_target
.to_has_vforked
= debug_to_has_vforked
;
2913 current_target
.to_can_follow_vfork_prior_to_exec
= debug_to_can_follow_vfork_prior_to_exec
;
2914 current_target
.to_post_follow_vfork
= debug_to_post_follow_vfork
;
2915 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
2916 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
2917 current_target
.to_has_execd
= debug_to_has_execd
;
2918 current_target
.to_reported_exec_events_per_exec_call
= debug_to_reported_exec_events_per_exec_call
;
2919 current_target
.to_has_syscall_event
= debug_to_has_syscall_event
;
2920 current_target
.to_has_exited
= debug_to_has_exited
;
2921 current_target
.to_mourn_inferior
= debug_to_mourn_inferior
;
2922 current_target
.to_can_run
= debug_to_can_run
;
2923 current_target
.to_notice_signals
= debug_to_notice_signals
;
2924 current_target
.to_thread_alive
= debug_to_thread_alive
;
2925 current_target
.to_find_new_threads
= debug_to_find_new_threads
;
2926 current_target
.to_stop
= debug_to_stop
;
2927 current_target
.to_query
= debug_to_query
;
2928 current_target
.to_rcmd
= debug_to_rcmd
;
2929 current_target
.to_enable_exception_callback
= debug_to_enable_exception_callback
;
2930 current_target
.to_get_current_exception_event
= debug_to_get_current_exception_event
;
2931 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
2936 static char targ_desc
[] =
2937 "Names of targets and files being debugged.\n\
2938 Shows the entire stack of targets currently in use (including the exec-file,\n\
2939 core-file, and process, if any), as well as the symbol file name.";
2942 do_monitor_command (char *cmd
,
2945 if ((current_target
.to_rcmd
2946 == (void (*) (char *, struct ui_file
*)) tcomplain
)
2947 || (current_target
.to_rcmd
== debug_to_rcmd
2948 && (debug_target
.to_rcmd
2949 == (void (*) (char *, struct ui_file
*)) tcomplain
)))
2951 error ("\"monitor\" command not supported by this target.\n");
2953 target_rcmd (cmd
, gdb_stdtarg
);
2957 initialize_targets (void)
2959 init_dummy_target ();
2960 push_target (&dummy_target
);
2962 add_info ("target", target_info
, targ_desc
);
2963 add_info ("files", target_info
, targ_desc
);
2966 add_set_cmd ("target", class_maintenance
, var_zinteger
,
2967 (char *) &targetdebug
,
2968 "Set target debugging.\n\
2969 When non-zero, target debugging is enabled.", &setdebuglist
),
2973 add_com ("monitor", class_obscure
, do_monitor_command
,
2974 "Send a command to the remote monitor (remote targets only).");
2976 target_dcache
= dcache_init();
2978 if (!STREQ (signals
[TARGET_SIGNAL_LAST
].string
, "TARGET_SIGNAL_MAGIC"))
2979 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");