1 /* Select target systems and architectures at runtime for GDB.
3 Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
5 Free Software Foundation, Inc.
7 Contributed by Cygnus Support.
9 This file is part of GDB.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 Boston, MA 02110-1301, USA. */
28 #include "gdb_string.h"
40 #include "gdb_assert.h"
42 #include "exceptions.h"
43 #include "target-descriptions.h"
45 static void target_info (char *, int);
47 static void maybe_kill_then_attach (char *, int);
49 static void kill_or_be_killed (int);
51 static void default_terminal_info (char *, int);
53 static int default_region_ok_for_hw_watchpoint (CORE_ADDR
, int);
55 static int nosymbol (char *, CORE_ADDR
*);
57 static void tcomplain (void) ATTR_NORETURN
;
59 static int nomemory (CORE_ADDR
, char *, int, int, struct target_ops
*);
61 static int return_zero (void);
63 static int return_one (void);
65 static int return_minus_one (void);
67 void target_ignore (void);
69 static void target_command (char *, int);
71 static struct target_ops
*find_default_run_target (char *);
73 static void nosupport_runtime (void);
75 static LONGEST
default_xfer_partial (struct target_ops
*ops
,
76 enum target_object object
,
77 const char *annex
, gdb_byte
*readbuf
,
78 const gdb_byte
*writebuf
,
79 ULONGEST offset
, LONGEST len
);
81 static LONGEST
current_xfer_partial (struct target_ops
*ops
,
82 enum target_object object
,
83 const char *annex
, gdb_byte
*readbuf
,
84 const gdb_byte
*writebuf
,
85 ULONGEST offset
, LONGEST len
);
87 static LONGEST
target_xfer_partial (struct target_ops
*ops
,
88 enum target_object object
,
90 void *readbuf
, const void *writebuf
,
91 ULONGEST offset
, LONGEST len
);
93 static void init_dummy_target (void);
95 static struct target_ops debug_target
;
97 static void debug_to_open (char *, int);
99 static void debug_to_close (int);
101 static void debug_to_attach (char *, int);
103 static void debug_to_detach (char *, int);
105 static void debug_to_resume (ptid_t
, int, enum target_signal
);
107 static ptid_t
debug_to_wait (ptid_t
, struct target_waitstatus
*);
109 static void debug_to_fetch_registers (int);
111 static void debug_to_store_registers (int);
113 static void debug_to_prepare_to_store (void);
115 static void debug_to_files_info (struct target_ops
*);
117 static int debug_to_insert_breakpoint (struct bp_target_info
*);
119 static int debug_to_remove_breakpoint (struct bp_target_info
*);
121 static int debug_to_can_use_hw_breakpoint (int, int, int);
123 static int debug_to_insert_hw_breakpoint (struct bp_target_info
*);
125 static int debug_to_remove_hw_breakpoint (struct bp_target_info
*);
127 static int debug_to_insert_watchpoint (CORE_ADDR
, int, int);
129 static int debug_to_remove_watchpoint (CORE_ADDR
, int, int);
131 static int debug_to_stopped_by_watchpoint (void);
133 static int debug_to_stopped_data_address (struct target_ops
*, CORE_ADDR
*);
135 static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR
, int);
137 static void debug_to_terminal_init (void);
139 static void debug_to_terminal_inferior (void);
141 static void debug_to_terminal_ours_for_output (void);
143 static void debug_to_terminal_save_ours (void);
145 static void debug_to_terminal_ours (void);
147 static void debug_to_terminal_info (char *, int);
149 static void debug_to_kill (void);
151 static void debug_to_load (char *, int);
153 static int debug_to_lookup_symbol (char *, CORE_ADDR
*);
155 static void debug_to_mourn_inferior (void);
157 static int debug_to_can_run (void);
159 static void debug_to_notice_signals (ptid_t
);
161 static int debug_to_thread_alive (ptid_t
);
163 static void debug_to_stop (void);
165 /* NOTE: cagney/2004-09-29: Many targets reference this variable in
166 wierd and mysterious ways. Putting the variable here lets those
167 wierd and mysterious ways keep building while they are being
168 converted to the inferior inheritance structure. */
169 struct target_ops deprecated_child_ops
;
171 /* Pointer to array of target architecture structures; the size of the
172 array; the current index into the array; the allocated size of the
174 struct target_ops
**target_structs
;
175 unsigned target_struct_size
;
176 unsigned target_struct_index
;
177 unsigned target_struct_allocsize
;
178 #define DEFAULT_ALLOCSIZE 10
180 /* The initial current target, so that there is always a semi-valid
183 static struct target_ops dummy_target
;
185 /* Top of target stack. */
187 static struct target_ops
*target_stack
;
189 /* The target structure we are currently using to talk to a process
190 or file or whatever "inferior" we have. */
192 struct target_ops current_target
;
194 /* Command list for target. */
196 static struct cmd_list_element
*targetlist
= NULL
;
198 /* Nonzero if we are debugging an attached outside process
199 rather than an inferior. */
203 /* Nonzero if we should trust readonly sections from the
204 executable when reading memory. */
206 static int trust_readonly
= 0;
208 /* Non-zero if we want to see trace of target level stuff. */
210 static int targetdebug
= 0;
212 show_targetdebug (struct ui_file
*file
, int from_tty
,
213 struct cmd_list_element
*c
, const char *value
)
215 fprintf_filtered (file
, _("Target debugging is %s.\n"), value
);
218 static void setup_target_debug (void);
220 DCACHE
*target_dcache
;
222 /* The user just typed 'target' without the name of a target. */
225 target_command (char *arg
, int from_tty
)
227 fputs_filtered ("Argument required (target name). Try `help target'\n",
231 /* Add a possible target architecture to the list. */
234 add_target (struct target_ops
*t
)
236 /* Provide default values for all "must have" methods. */
237 if (t
->to_xfer_partial
== NULL
)
238 t
->to_xfer_partial
= default_xfer_partial
;
242 target_struct_allocsize
= DEFAULT_ALLOCSIZE
;
243 target_structs
= (struct target_ops
**) xmalloc
244 (target_struct_allocsize
* sizeof (*target_structs
));
246 if (target_struct_size
>= target_struct_allocsize
)
248 target_struct_allocsize
*= 2;
249 target_structs
= (struct target_ops
**)
250 xrealloc ((char *) target_structs
,
251 target_struct_allocsize
* sizeof (*target_structs
));
253 target_structs
[target_struct_size
++] = t
;
255 if (targetlist
== NULL
)
256 add_prefix_cmd ("target", class_run
, target_command
, _("\
257 Connect to a target machine or process.\n\
258 The first argument is the type or protocol of the target machine.\n\
259 Remaining arguments are interpreted by the target protocol. For more\n\
260 information on the arguments for a particular protocol, type\n\
261 `help target ' followed by the protocol name."),
262 &targetlist
, "target ", 0, &cmdlist
);
263 add_cmd (t
->to_shortname
, no_class
, t
->to_open
, t
->to_doc
, &targetlist
);
274 target_load (char *arg
, int from_tty
)
276 dcache_invalidate (target_dcache
);
277 (*current_target
.to_load
) (arg
, from_tty
);
281 nomemory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
,
282 struct target_ops
*t
)
284 errno
= EIO
; /* Can't read/write this location */
285 return 0; /* No bytes handled */
291 error (_("You can't do that when your target is `%s'"),
292 current_target
.to_shortname
);
298 error (_("You can't do that without a process to debug."));
302 nosymbol (char *name
, CORE_ADDR
*addrp
)
304 return 1; /* Symbol does not exist in target env */
308 nosupport_runtime (void)
310 if (ptid_equal (inferior_ptid
, null_ptid
))
313 error (_("No run-time support for this"));
318 default_terminal_info (char *args
, int from_tty
)
320 printf_unfiltered (_("No saved terminal information.\n"));
323 /* This is the default target_create_inferior and target_attach function.
324 If the current target is executing, it asks whether to kill it off.
325 If this function returns without calling error(), it has killed off
326 the target, and the operation should be attempted. */
329 kill_or_be_killed (int from_tty
)
331 if (target_has_execution
)
333 printf_unfiltered (_("You are already running a program:\n"));
334 target_files_info ();
335 if (query ("Kill it? "))
338 if (target_has_execution
)
339 error (_("Killing the program did not help."));
344 error (_("Program not killed."));
351 maybe_kill_then_attach (char *args
, int from_tty
)
353 kill_or_be_killed (from_tty
);
354 target_attach (args
, from_tty
);
358 maybe_kill_then_create_inferior (char *exec
, char *args
, char **env
,
361 kill_or_be_killed (0);
362 target_create_inferior (exec
, args
, env
, from_tty
);
365 /* Go through the target stack from top to bottom, copying over zero
366 entries in current_target, then filling in still empty entries. In
367 effect, we are doing class inheritance through the pushed target
370 NOTE: cagney/2003-10-17: The problem with this inheritance, as it
371 is currently implemented, is that it discards any knowledge of
372 which target an inherited method originally belonged to.
373 Consequently, new new target methods should instead explicitly and
374 locally search the target stack for the target that can handle the
378 update_current_target (void)
380 struct target_ops
*t
;
382 /* First, reset current's contents. */
383 memset (¤t_target
, 0, sizeof (current_target
));
385 #define INHERIT(FIELD, TARGET) \
386 if (!current_target.FIELD) \
387 current_target.FIELD = (TARGET)->FIELD
389 for (t
= target_stack
; t
; t
= t
->beneath
)
391 INHERIT (to_shortname
, t
);
392 INHERIT (to_longname
, t
);
394 INHERIT (to_open
, t
);
395 INHERIT (to_close
, t
);
396 INHERIT (to_attach
, t
);
397 INHERIT (to_post_attach
, t
);
398 INHERIT (to_detach
, t
);
399 /* Do not inherit to_disconnect. */
400 INHERIT (to_resume
, t
);
401 INHERIT (to_wait
, t
);
402 INHERIT (to_fetch_registers
, t
);
403 INHERIT (to_store_registers
, t
);
404 INHERIT (to_prepare_to_store
, t
);
405 INHERIT (deprecated_xfer_memory
, t
);
406 INHERIT (to_files_info
, t
);
407 INHERIT (to_insert_breakpoint
, t
);
408 INHERIT (to_remove_breakpoint
, t
);
409 INHERIT (to_can_use_hw_breakpoint
, t
);
410 INHERIT (to_insert_hw_breakpoint
, t
);
411 INHERIT (to_remove_hw_breakpoint
, t
);
412 INHERIT (to_insert_watchpoint
, t
);
413 INHERIT (to_remove_watchpoint
, t
);
414 INHERIT (to_stopped_data_address
, t
);
415 INHERIT (to_stopped_by_watchpoint
, t
);
416 INHERIT (to_have_steppable_watchpoint
, t
);
417 INHERIT (to_have_continuable_watchpoint
, t
);
418 INHERIT (to_region_ok_for_hw_watchpoint
, t
);
419 INHERIT (to_terminal_init
, t
);
420 INHERIT (to_terminal_inferior
, t
);
421 INHERIT (to_terminal_ours_for_output
, t
);
422 INHERIT (to_terminal_ours
, t
);
423 INHERIT (to_terminal_save_ours
, t
);
424 INHERIT (to_terminal_info
, t
);
425 INHERIT (to_kill
, t
);
426 INHERIT (to_load
, t
);
427 INHERIT (to_lookup_symbol
, t
);
428 INHERIT (to_create_inferior
, t
);
429 INHERIT (to_post_startup_inferior
, t
);
430 INHERIT (to_acknowledge_created_inferior
, t
);
431 INHERIT (to_insert_fork_catchpoint
, t
);
432 INHERIT (to_remove_fork_catchpoint
, t
);
433 INHERIT (to_insert_vfork_catchpoint
, t
);
434 INHERIT (to_remove_vfork_catchpoint
, t
);
435 /* Do not inherit to_follow_fork. */
436 INHERIT (to_insert_exec_catchpoint
, t
);
437 INHERIT (to_remove_exec_catchpoint
, t
);
438 INHERIT (to_reported_exec_events_per_exec_call
, t
);
439 INHERIT (to_has_exited
, t
);
440 INHERIT (to_mourn_inferior
, t
);
441 INHERIT (to_can_run
, t
);
442 INHERIT (to_notice_signals
, t
);
443 INHERIT (to_thread_alive
, t
);
444 INHERIT (to_find_new_threads
, t
);
445 INHERIT (to_pid_to_str
, t
);
446 INHERIT (to_extra_thread_info
, t
);
447 INHERIT (to_stop
, t
);
448 /* Do not inherit to_xfer_partial. */
449 INHERIT (to_rcmd
, t
);
450 INHERIT (to_enable_exception_callback
, t
);
451 INHERIT (to_get_current_exception_event
, t
);
452 INHERIT (to_pid_to_exec_file
, t
);
453 INHERIT (to_stratum
, t
);
454 INHERIT (to_has_all_memory
, t
);
455 INHERIT (to_has_memory
, t
);
456 INHERIT (to_has_stack
, t
);
457 INHERIT (to_has_registers
, t
);
458 INHERIT (to_has_execution
, t
);
459 INHERIT (to_has_thread_control
, t
);
460 INHERIT (to_sections
, t
);
461 INHERIT (to_sections_end
, t
);
462 INHERIT (to_can_async_p
, t
);
463 INHERIT (to_is_async_p
, t
);
464 INHERIT (to_async
, t
);
465 INHERIT (to_async_mask_value
, t
);
466 INHERIT (to_find_memory_regions
, t
);
467 INHERIT (to_make_corefile_notes
, t
);
468 INHERIT (to_get_thread_local_address
, t
);
469 /* Do not inherit to_read_description. */
470 INHERIT (to_magic
, t
);
471 /* Do not inherit to_memory_map. */
472 /* Do not inherit to_flash_erase. */
473 /* Do not inherit to_flash_done. */
477 /* Clean up a target struct so it no longer has any zero pointers in
478 it. Some entries are defaulted to a method that print an error,
479 others are hard-wired to a standard recursive default. */
481 #define de_fault(field, value) \
482 if (!current_target.field) \
483 current_target.field = value
486 (void (*) (char *, int))
492 maybe_kill_then_attach
);
493 de_fault (to_post_attach
,
497 (void (*) (char *, int))
500 (void (*) (ptid_t
, int, enum target_signal
))
503 (ptid_t (*) (ptid_t
, struct target_waitstatus
*))
505 de_fault (to_fetch_registers
,
508 de_fault (to_store_registers
,
511 de_fault (to_prepare_to_store
,
514 de_fault (deprecated_xfer_memory
,
515 (int (*) (CORE_ADDR
, gdb_byte
*, int, int, struct mem_attrib
*, struct target_ops
*))
517 de_fault (to_files_info
,
518 (void (*) (struct target_ops
*))
520 de_fault (to_insert_breakpoint
,
521 memory_insert_breakpoint
);
522 de_fault (to_remove_breakpoint
,
523 memory_remove_breakpoint
);
524 de_fault (to_can_use_hw_breakpoint
,
525 (int (*) (int, int, int))
527 de_fault (to_insert_hw_breakpoint
,
528 (int (*) (struct bp_target_info
*))
530 de_fault (to_remove_hw_breakpoint
,
531 (int (*) (struct bp_target_info
*))
533 de_fault (to_insert_watchpoint
,
534 (int (*) (CORE_ADDR
, int, int))
536 de_fault (to_remove_watchpoint
,
537 (int (*) (CORE_ADDR
, int, int))
539 de_fault (to_stopped_by_watchpoint
,
542 de_fault (to_stopped_data_address
,
543 (int (*) (struct target_ops
*, CORE_ADDR
*))
545 de_fault (to_region_ok_for_hw_watchpoint
,
546 default_region_ok_for_hw_watchpoint
);
547 de_fault (to_terminal_init
,
550 de_fault (to_terminal_inferior
,
553 de_fault (to_terminal_ours_for_output
,
556 de_fault (to_terminal_ours
,
559 de_fault (to_terminal_save_ours
,
562 de_fault (to_terminal_info
,
563 default_terminal_info
);
568 (void (*) (char *, int))
570 de_fault (to_lookup_symbol
,
571 (int (*) (char *, CORE_ADDR
*))
573 de_fault (to_create_inferior
,
574 maybe_kill_then_create_inferior
);
575 de_fault (to_post_startup_inferior
,
578 de_fault (to_acknowledge_created_inferior
,
581 de_fault (to_insert_fork_catchpoint
,
584 de_fault (to_remove_fork_catchpoint
,
587 de_fault (to_insert_vfork_catchpoint
,
590 de_fault (to_remove_vfork_catchpoint
,
593 de_fault (to_insert_exec_catchpoint
,
596 de_fault (to_remove_exec_catchpoint
,
599 de_fault (to_reported_exec_events_per_exec_call
,
602 de_fault (to_has_exited
,
603 (int (*) (int, int, int *))
605 de_fault (to_mourn_inferior
,
608 de_fault (to_can_run
,
610 de_fault (to_notice_signals
,
613 de_fault (to_thread_alive
,
616 de_fault (to_find_new_threads
,
619 de_fault (to_extra_thread_info
,
620 (char *(*) (struct thread_info
*))
625 current_target
.to_xfer_partial
= current_xfer_partial
;
627 (void (*) (char *, struct ui_file
*))
629 de_fault (to_enable_exception_callback
,
630 (struct symtab_and_line
* (*) (enum exception_event_kind
, int))
632 de_fault (to_get_current_exception_event
,
633 (struct exception_event_record
* (*) (void))
635 de_fault (to_pid_to_exec_file
,
638 de_fault (to_can_async_p
,
641 de_fault (to_is_async_p
,
645 (void (*) (void (*) (enum inferior_event_type
, void*), void*))
647 current_target
.to_read_description
= NULL
;
650 /* Finally, position the target-stack beneath the squashed
651 "current_target". That way code looking for a non-inherited
652 target method can quickly and simply find it. */
653 current_target
.beneath
= target_stack
;
656 /* Mark OPS as a running target. This reverses the effect
657 of target_mark_exited. */
660 target_mark_running (struct target_ops
*ops
)
662 struct target_ops
*t
;
664 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
668 internal_error (__FILE__
, __LINE__
,
669 "Attempted to mark unpushed target \"%s\" as running",
672 ops
->to_has_execution
= 1;
673 ops
->to_has_all_memory
= 1;
674 ops
->to_has_memory
= 1;
675 ops
->to_has_stack
= 1;
676 ops
->to_has_registers
= 1;
678 update_current_target ();
681 /* Mark OPS as a non-running target. This reverses the effect
682 of target_mark_running. */
685 target_mark_exited (struct target_ops
*ops
)
687 struct target_ops
*t
;
689 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
693 internal_error (__FILE__
, __LINE__
,
694 "Attempted to mark unpushed target \"%s\" as running",
697 ops
->to_has_execution
= 0;
698 ops
->to_has_all_memory
= 0;
699 ops
->to_has_memory
= 0;
700 ops
->to_has_stack
= 0;
701 ops
->to_has_registers
= 0;
703 update_current_target ();
706 /* Push a new target type into the stack of the existing target accessors,
707 possibly superseding some of the existing accessors.
709 Result is zero if the pushed target ended up on top of the stack,
710 nonzero if at least one target is on top of it.
712 Rather than allow an empty stack, we always have the dummy target at
713 the bottom stratum, so we can call the function vectors without
717 push_target (struct target_ops
*t
)
719 struct target_ops
**cur
;
721 /* Check magic number. If wrong, it probably means someone changed
722 the struct definition, but not all the places that initialize one. */
723 if (t
->to_magic
!= OPS_MAGIC
)
725 fprintf_unfiltered (gdb_stderr
,
726 "Magic number of %s target struct wrong\n",
728 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
731 /* Find the proper stratum to install this target in. */
732 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
734 if ((int) (t
->to_stratum
) >= (int) (*cur
)->to_stratum
)
738 /* If there's already targets at this stratum, remove them. */
739 /* FIXME: cagney/2003-10-15: I think this should be popping all
740 targets to CUR, and not just those at this stratum level. */
741 while ((*cur
) != NULL
&& t
->to_stratum
== (*cur
)->to_stratum
)
743 /* There's already something at this stratum level. Close it,
744 and un-hook it from the stack. */
745 struct target_ops
*tmp
= (*cur
);
746 (*cur
) = (*cur
)->beneath
;
748 target_close (tmp
, 0);
751 /* We have removed all targets in our stratum, now add the new one. */
755 update_current_target ();
758 setup_target_debug ();
761 return (t
!= target_stack
);
764 /* Remove a target_ops vector from the stack, wherever it may be.
765 Return how many times it was removed (0 or 1). */
768 unpush_target (struct target_ops
*t
)
770 struct target_ops
**cur
;
771 struct target_ops
*tmp
;
773 /* Look for the specified target. Note that we assume that a target
774 can only occur once in the target stack. */
776 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
783 return 0; /* Didn't find target_ops, quit now */
785 /* NOTE: cagney/2003-12-06: In '94 the close call was made
786 unconditional by moving it to before the above check that the
787 target was in the target stack (something about "Change the way
788 pushing and popping of targets work to support target overlays
789 and inheritance"). This doesn't make much sense - only open
790 targets should be closed. */
793 /* Unchain the target */
795 (*cur
) = (*cur
)->beneath
;
798 update_current_target ();
806 target_close (¤t_target
, 0); /* Let it clean up */
807 if (unpush_target (target_stack
) == 1)
810 fprintf_unfiltered (gdb_stderr
,
811 "pop_target couldn't find target %s\n",
812 current_target
.to_shortname
);
813 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
816 /* Using the objfile specified in BATON, find the address for the
817 current thread's thread-local storage with offset OFFSET. */
819 target_translate_tls_address (struct objfile
*objfile
, CORE_ADDR offset
)
821 volatile CORE_ADDR addr
= 0;
823 if (target_get_thread_local_address_p ()
824 && gdbarch_fetch_tls_load_module_address_p (current_gdbarch
))
826 ptid_t ptid
= inferior_ptid
;
827 volatile struct gdb_exception ex
;
829 TRY_CATCH (ex
, RETURN_MASK_ALL
)
833 /* Fetch the load module address for this objfile. */
834 lm_addr
= gdbarch_fetch_tls_load_module_address (current_gdbarch
,
836 /* If it's 0, throw the appropriate exception. */
838 throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR
,
839 _("TLS load module not found"));
841 addr
= target_get_thread_local_address (ptid
, lm_addr
, offset
);
843 /* If an error occurred, print TLS related messages here. Otherwise,
844 throw the error to some higher catcher. */
847 int objfile_is_library
= (objfile
->flags
& OBJF_SHARED
);
851 case TLS_NO_LIBRARY_SUPPORT_ERROR
:
852 error (_("Cannot find thread-local variables in this thread library."));
854 case TLS_LOAD_MODULE_NOT_FOUND_ERROR
:
855 if (objfile_is_library
)
856 error (_("Cannot find shared library `%s' in dynamic"
857 " linker's load module list"), objfile
->name
);
859 error (_("Cannot find executable file `%s' in dynamic"
860 " linker's load module list"), objfile
->name
);
862 case TLS_NOT_ALLOCATED_YET_ERROR
:
863 if (objfile_is_library
)
864 error (_("The inferior has not yet allocated storage for"
865 " thread-local variables in\n"
866 "the shared library `%s'\n"
868 objfile
->name
, target_pid_to_str (ptid
));
870 error (_("The inferior has not yet allocated storage for"
871 " thread-local variables in\n"
872 "the executable `%s'\n"
874 objfile
->name
, target_pid_to_str (ptid
));
876 case TLS_GENERIC_ERROR
:
877 if (objfile_is_library
)
878 error (_("Cannot find thread-local storage for %s, "
879 "shared library %s:\n%s"),
880 target_pid_to_str (ptid
),
881 objfile
->name
, ex
.message
);
883 error (_("Cannot find thread-local storage for %s, "
884 "executable file %s:\n%s"),
885 target_pid_to_str (ptid
),
886 objfile
->name
, ex
.message
);
889 throw_exception (ex
);
894 /* It wouldn't be wrong here to try a gdbarch method, too; finding
895 TLS is an ABI-specific thing. But we don't do that yet. */
897 error (_("Cannot find thread-local variables on this target"));
903 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
905 /* target_read_string -- read a null terminated string, up to LEN bytes,
906 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
907 Set *STRING to a pointer to malloc'd memory containing the data; the caller
908 is responsible for freeing it. Return the number of bytes successfully
912 target_read_string (CORE_ADDR memaddr
, char **string
, int len
, int *errnop
)
914 int tlen
, origlen
, offset
, i
;
918 int buffer_allocated
;
920 unsigned int nbytes_read
= 0;
922 /* Small for testing. */
923 buffer_allocated
= 4;
924 buffer
= xmalloc (buffer_allocated
);
931 tlen
= MIN (len
, 4 - (memaddr
& 3));
932 offset
= memaddr
& 3;
934 errcode
= target_read_memory (memaddr
& ~3, buf
, sizeof buf
);
937 /* The transfer request might have crossed the boundary to an
938 unallocated region of memory. Retry the transfer, requesting
942 errcode
= target_read_memory (memaddr
, buf
, 1);
947 if (bufptr
- buffer
+ tlen
> buffer_allocated
)
950 bytes
= bufptr
- buffer
;
951 buffer_allocated
*= 2;
952 buffer
= xrealloc (buffer
, buffer_allocated
);
953 bufptr
= buffer
+ bytes
;
956 for (i
= 0; i
< tlen
; i
++)
958 *bufptr
++ = buf
[i
+ offset
];
959 if (buf
[i
+ offset
] == '\000')
961 nbytes_read
+= i
+ 1;
978 /* Find a section containing ADDR. */
979 struct section_table
*
980 target_section_by_addr (struct target_ops
*target
, CORE_ADDR addr
)
982 struct section_table
*secp
;
983 for (secp
= target
->to_sections
;
984 secp
< target
->to_sections_end
;
987 if (addr
>= secp
->addr
&& addr
< secp
->endaddr
)
993 /* Perform a partial memory transfer. The arguments and return
994 value are just as for target_xfer_partial. */
997 memory_xfer_partial (struct target_ops
*ops
, void *readbuf
, const void *writebuf
,
998 ULONGEST memaddr
, LONGEST len
)
1002 struct mem_region
*region
;
1004 /* Zero length requests are ok and require no work. */
1008 /* Try the executable file, if "trust-readonly-sections" is set. */
1009 if (readbuf
!= NULL
&& trust_readonly
)
1011 struct section_table
*secp
;
1013 secp
= target_section_by_addr (ops
, memaddr
);
1015 && (bfd_get_section_flags (secp
->bfd
, secp
->the_bfd_section
)
1017 return xfer_memory (memaddr
, readbuf
, len
, 0, NULL
, ops
);
1020 /* Try GDB's internal data cache. */
1021 region
= lookup_mem_region (memaddr
);
1022 /* region->hi == 0 means there's no upper bound. */
1023 if (memaddr
+ len
< region
->hi
|| region
->hi
== 0)
1026 reg_len
= region
->hi
- memaddr
;
1028 switch (region
->attrib
.mode
)
1031 if (writebuf
!= NULL
)
1036 if (readbuf
!= NULL
)
1041 /* We only support writing to flash during "load" for now. */
1042 if (writebuf
!= NULL
)
1043 error (_("Writing to flash memory forbidden in this context"));
1050 if (region
->attrib
.cache
)
1052 /* FIXME drow/2006-08-09: This call discards OPS, so the raw
1053 memory request will start back at current_target. */
1054 if (readbuf
!= NULL
)
1055 res
= dcache_xfer_memory (target_dcache
, memaddr
, readbuf
,
1058 /* FIXME drow/2006-08-09: If we're going to preserve const
1059 correctness dcache_xfer_memory should take readbuf and
1061 res
= dcache_xfer_memory (target_dcache
, memaddr
,
1070 /* If none of those methods found the memory we wanted, fall back
1071 to a target partial transfer. Normally a single call to
1072 to_xfer_partial is enough; if it doesn't recognize an object
1073 it will call the to_xfer_partial of the next target down.
1074 But for memory this won't do. Memory is the only target
1075 object which can be read from more than one valid target.
1076 A core file, for instance, could have some of memory but
1077 delegate other bits to the target below it. So, we must
1078 manually try all targets. */
1082 res
= ops
->to_xfer_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1083 readbuf
, writebuf
, memaddr
, reg_len
);
1089 while (ops
!= NULL
);
1091 /* If we still haven't got anything, return the last error. We
1097 target_xfer_partial (struct target_ops
*ops
,
1098 enum target_object object
, const char *annex
,
1099 void *readbuf
, const void *writebuf
,
1100 ULONGEST offset
, LONGEST len
)
1104 gdb_assert (ops
->to_xfer_partial
!= NULL
);
1106 /* If this is a memory transfer, let the memory-specific code
1107 have a look at it instead. Memory transfers are more
1109 if (object
== TARGET_OBJECT_MEMORY
)
1110 retval
= memory_xfer_partial (ops
, readbuf
, writebuf
, offset
, len
);
1113 enum target_object raw_object
= object
;
1115 /* If this is a raw memory transfer, request the normal
1116 memory object from other layers. */
1117 if (raw_object
== TARGET_OBJECT_RAW_MEMORY
)
1118 raw_object
= TARGET_OBJECT_MEMORY
;
1120 retval
= ops
->to_xfer_partial (ops
, raw_object
, annex
, readbuf
,
1121 writebuf
, offset
, len
);
1126 const unsigned char *myaddr
= NULL
;
1128 fprintf_unfiltered (gdb_stdlog
,
1129 "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s",
1132 (annex
? annex
: "(null)"),
1133 (long) readbuf
, (long) writebuf
,
1134 paddr_nz (offset
), paddr_d (len
), paddr_d (retval
));
1140 if (retval
> 0 && myaddr
!= NULL
)
1144 fputs_unfiltered (", bytes =", gdb_stdlog
);
1145 for (i
= 0; i
< retval
; i
++)
1147 if ((((long) &(myaddr
[i
])) & 0xf) == 0)
1149 if (targetdebug
< 2 && i
> 0)
1151 fprintf_unfiltered (gdb_stdlog
, " ...");
1154 fprintf_unfiltered (gdb_stdlog
, "\n");
1157 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
1161 fputc_unfiltered ('\n', gdb_stdlog
);
1166 /* Read LEN bytes of target memory at address MEMADDR, placing the results in
1167 GDB's memory at MYADDR. Returns either 0 for success or an errno value
1168 if any error occurs.
1170 If an error occurs, no guarantee is made about the contents of the data at
1171 MYADDR. In particular, the caller should not depend upon partial reads
1172 filling the buffer with good data. There is no way for the caller to know
1173 how much good data might have been transfered anyway. Callers that can
1174 deal with partial reads should call target_read (which will retry until
1175 it makes no progress, and then return how much was transferred). */
1178 target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, int len
)
1180 if (target_read (¤t_target
, TARGET_OBJECT_MEMORY
, NULL
,
1181 myaddr
, memaddr
, len
) == len
)
1188 target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, int len
)
1190 if (target_write (¤t_target
, TARGET_OBJECT_MEMORY
, NULL
,
1191 myaddr
, memaddr
, len
) == len
)
1197 /* Fetch the target's memory map. */
1200 target_memory_map (void)
1202 VEC(mem_region_s
) *result
;
1203 struct mem_region
*last_one
, *this_one
;
1205 struct target_ops
*t
;
1208 fprintf_unfiltered (gdb_stdlog
, "target_memory_map ()\n");
1210 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1211 if (t
->to_memory_map
!= NULL
)
1217 result
= t
->to_memory_map (t
);
1221 qsort (VEC_address (mem_region_s
, result
),
1222 VEC_length (mem_region_s
, result
),
1223 sizeof (struct mem_region
), mem_region_cmp
);
1225 /* Check that regions do not overlap. Simultaneously assign
1226 a numbering for the "mem" commands to use to refer to
1229 for (ix
= 0; VEC_iterate (mem_region_s
, result
, ix
, this_one
); ix
++)
1231 this_one
->number
= ix
;
1233 if (last_one
&& last_one
->hi
> this_one
->lo
)
1235 warning (_("Overlapping regions in memory map: ignoring"));
1236 VEC_free (mem_region_s
, result
);
1239 last_one
= this_one
;
1246 target_flash_erase (ULONGEST address
, LONGEST length
)
1248 struct target_ops
*t
;
1250 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1251 if (t
->to_flash_erase
!= NULL
)
1254 fprintf_unfiltered (gdb_stdlog
, "target_flash_erase (%s, %s)\n",
1255 paddr (address
), phex (length
, 0));
1256 t
->to_flash_erase (t
, address
, length
);
1264 target_flash_done (void)
1266 struct target_ops
*t
;
1268 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1269 if (t
->to_flash_done
!= NULL
)
1272 fprintf_unfiltered (gdb_stdlog
, "target_flash_done\n");
1273 t
->to_flash_done (t
);
1280 #ifndef target_stopped_data_address_p
1282 target_stopped_data_address_p (struct target_ops
*target
)
1284 if (target
->to_stopped_data_address
1285 == (int (*) (struct target_ops
*, CORE_ADDR
*)) return_zero
)
1287 if (target
->to_stopped_data_address
== debug_to_stopped_data_address
1288 && (debug_target
.to_stopped_data_address
1289 == (int (*) (struct target_ops
*, CORE_ADDR
*)) return_zero
))
1296 show_trust_readonly (struct ui_file
*file
, int from_tty
,
1297 struct cmd_list_element
*c
, const char *value
)
1299 fprintf_filtered (file
, _("\
1300 Mode for reading from readonly sections is %s.\n"),
1304 /* More generic transfers. */
1307 default_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1308 const char *annex
, gdb_byte
*readbuf
,
1309 const gdb_byte
*writebuf
, ULONGEST offset
, LONGEST len
)
1311 if (object
== TARGET_OBJECT_MEMORY
1312 && ops
->deprecated_xfer_memory
!= NULL
)
1313 /* If available, fall back to the target's
1314 "deprecated_xfer_memory" method. */
1318 if (writebuf
!= NULL
)
1320 void *buffer
= xmalloc (len
);
1321 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
1322 memcpy (buffer
, writebuf
, len
);
1323 xfered
= ops
->deprecated_xfer_memory (offset
, buffer
, len
,
1324 1/*write*/, NULL
, ops
);
1325 do_cleanups (cleanup
);
1327 if (readbuf
!= NULL
)
1328 xfered
= ops
->deprecated_xfer_memory (offset
, readbuf
, len
, 0/*read*/,
1332 else if (xfered
== 0 && errno
== 0)
1333 /* "deprecated_xfer_memory" uses 0, cross checked against
1334 ERRNO as one indication of an error. */
1339 else if (ops
->beneath
!= NULL
)
1340 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
1341 readbuf
, writebuf
, offset
, len
);
1346 /* The xfer_partial handler for the topmost target. Unlike the default,
1347 it does not need to handle memory specially; it just passes all
1348 requests down the stack. */
1351 current_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1352 const char *annex
, gdb_byte
*readbuf
,
1353 const gdb_byte
*writebuf
, ULONGEST offset
, LONGEST len
)
1355 if (ops
->beneath
!= NULL
)
1356 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
1357 readbuf
, writebuf
, offset
, len
);
1362 /* Target vector read/write partial wrapper functions.
1364 NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial
1365 (inbuf, outbuf)", instead of separate read/write methods, make life
1369 target_read_partial (struct target_ops
*ops
,
1370 enum target_object object
,
1371 const char *annex
, gdb_byte
*buf
,
1372 ULONGEST offset
, LONGEST len
)
1374 return target_xfer_partial (ops
, object
, annex
, buf
, NULL
, offset
, len
);
1378 target_write_partial (struct target_ops
*ops
,
1379 enum target_object object
,
1380 const char *annex
, const gdb_byte
*buf
,
1381 ULONGEST offset
, LONGEST len
)
1383 return target_xfer_partial (ops
, object
, annex
, NULL
, buf
, offset
, len
);
1386 /* Wrappers to perform the full transfer. */
1388 target_read (struct target_ops
*ops
,
1389 enum target_object object
,
1390 const char *annex
, gdb_byte
*buf
,
1391 ULONGEST offset
, LONGEST len
)
1394 while (xfered
< len
)
1396 LONGEST xfer
= target_read_partial (ops
, object
, annex
,
1397 (gdb_byte
*) buf
+ xfered
,
1398 offset
+ xfered
, len
- xfered
);
1399 /* Call an observer, notifying them of the xfer progress? */
1410 /* An alternative to target_write with progress callbacks. */
1413 target_write_with_progress (struct target_ops
*ops
,
1414 enum target_object object
,
1415 const char *annex
, const gdb_byte
*buf
,
1416 ULONGEST offset
, LONGEST len
,
1417 void (*progress
) (ULONGEST
, void *), void *baton
)
1421 /* Give the progress callback a chance to set up. */
1423 (*progress
) (0, baton
);
1425 while (xfered
< len
)
1427 LONGEST xfer
= target_write_partial (ops
, object
, annex
,
1428 (gdb_byte
*) buf
+ xfered
,
1429 offset
+ xfered
, len
- xfered
);
1437 (*progress
) (xfer
, baton
);
1446 target_write (struct target_ops
*ops
,
1447 enum target_object object
,
1448 const char *annex
, const gdb_byte
*buf
,
1449 ULONGEST offset
, LONGEST len
)
1451 return target_write_with_progress (ops
, object
, annex
, buf
, offset
, len
,
1455 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
1456 the size of the transferred data. PADDING additional bytes are
1457 available in *BUF_P. This is a helper function for
1458 target_read_alloc; see the declaration of that function for more
1462 target_read_alloc_1 (struct target_ops
*ops
, enum target_object object
,
1463 const char *annex
, gdb_byte
**buf_p
, int padding
)
1465 size_t buf_alloc
, buf_pos
;
1469 /* This function does not have a length parameter; it reads the
1470 entire OBJECT). Also, it doesn't support objects fetched partly
1471 from one target and partly from another (in a different stratum,
1472 e.g. a core file and an executable). Both reasons make it
1473 unsuitable for reading memory. */
1474 gdb_assert (object
!= TARGET_OBJECT_MEMORY
);
1476 /* Start by reading up to 4K at a time. The target will throttle
1477 this number down if necessary. */
1479 buf
= xmalloc (buf_alloc
);
1483 n
= target_read_partial (ops
, object
, annex
, &buf
[buf_pos
],
1484 buf_pos
, buf_alloc
- buf_pos
- padding
);
1487 /* An error occurred. */
1493 /* Read all there was. */
1503 /* If the buffer is filling up, expand it. */
1504 if (buf_alloc
< buf_pos
* 2)
1507 buf
= xrealloc (buf
, buf_alloc
);
1514 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
1515 the size of the transferred data. See the declaration in "target.h"
1516 function for more information about the return value. */
1519 target_read_alloc (struct target_ops
*ops
, enum target_object object
,
1520 const char *annex
, gdb_byte
**buf_p
)
1522 return target_read_alloc_1 (ops
, object
, annex
, buf_p
, 0);
1525 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
1526 returned as a string, allocated using xmalloc. If an error occurs
1527 or the transfer is unsupported, NULL is returned. Empty objects
1528 are returned as allocated but empty strings. A warning is issued
1529 if the result contains any embedded NUL bytes. */
1532 target_read_stralloc (struct target_ops
*ops
, enum target_object object
,
1536 LONGEST transferred
;
1538 transferred
= target_read_alloc_1 (ops
, object
, annex
, &buffer
, 1);
1540 if (transferred
< 0)
1543 if (transferred
== 0)
1544 return xstrdup ("");
1546 buffer
[transferred
] = 0;
1547 if (strlen (buffer
) < transferred
)
1548 warning (_("target object %d, annex %s, "
1549 "contained unexpected null characters"),
1550 (int) object
, annex
? annex
: "(none)");
1552 return (char *) buffer
;
1555 /* Memory transfer methods. */
1558 get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
, gdb_byte
*buf
,
1561 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
, buf
, addr
, len
)
1563 memory_error (EIO
, addr
);
1567 get_target_memory_unsigned (struct target_ops
*ops
,
1568 CORE_ADDR addr
, int len
)
1570 gdb_byte buf
[sizeof (ULONGEST
)];
1572 gdb_assert (len
<= sizeof (buf
));
1573 get_target_memory (ops
, addr
, buf
, len
);
1574 return extract_unsigned_integer (buf
, len
);
1578 target_info (char *args
, int from_tty
)
1580 struct target_ops
*t
;
1581 int has_all_mem
= 0;
1583 if (symfile_objfile
!= NULL
)
1584 printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile
->name
);
1586 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
1588 if (!t
->to_has_memory
)
1591 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
1594 printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n"));
1595 printf_unfiltered ("%s:\n", t
->to_longname
);
1596 (t
->to_files_info
) (t
);
1597 has_all_mem
= t
->to_has_all_memory
;
1601 /* This function is called before any new inferior is created, e.g.
1602 by running a program, attaching, or connecting to a target.
1603 It cleans up any state from previous invocations which might
1604 change between runs. This is a subset of what target_preopen
1605 resets (things which might change between targets). */
1608 target_pre_inferior (int from_tty
)
1610 invalidate_target_mem_regions ();
1612 target_clear_description ();
1615 /* This is to be called by the open routine before it does
1619 target_preopen (int from_tty
)
1623 if (target_has_execution
)
1626 || query (_("A program is being debugged already. Kill it? ")))
1629 error (_("Program not killed."));
1632 /* Calling target_kill may remove the target from the stack. But if
1633 it doesn't (which seems like a win for UDI), remove it now. */
1635 if (target_has_execution
)
1638 target_pre_inferior (from_tty
);
1641 /* Detach a target after doing deferred register stores. */
1644 target_detach (char *args
, int from_tty
)
1646 (current_target
.to_detach
) (args
, from_tty
);
1650 target_disconnect (char *args
, int from_tty
)
1652 struct target_ops
*t
;
1654 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1655 if (t
->to_disconnect
!= NULL
)
1658 fprintf_unfiltered (gdb_stdlog
, "target_disconnect (%s, %d)\n",
1660 t
->to_disconnect (t
, args
, from_tty
);
1668 target_async_mask (int mask
)
1670 int saved_async_masked_status
= target_async_mask_value
;
1671 target_async_mask_value
= mask
;
1672 return saved_async_masked_status
;
1675 /* Look through the list of possible targets for a target that can
1679 target_follow_fork (int follow_child
)
1681 struct target_ops
*t
;
1683 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1685 if (t
->to_follow_fork
!= NULL
)
1687 int retval
= t
->to_follow_fork (t
, follow_child
);
1689 fprintf_unfiltered (gdb_stdlog
, "target_follow_fork (%d) = %d\n",
1690 follow_child
, retval
);
1695 /* Some target returned a fork event, but did not know how to follow it. */
1696 internal_error (__FILE__
, __LINE__
,
1697 "could not find a target to follow fork");
1700 /* Look for a target which can describe architectural features, starting
1701 from TARGET. If we find one, return its description. */
1703 const struct target_desc
*
1704 target_read_description (struct target_ops
*target
)
1706 struct target_ops
*t
;
1708 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
1709 if (t
->to_read_description
!= NULL
)
1711 const struct target_desc
*tdesc
;
1713 tdesc
= t
->to_read_description (t
);
1721 /* Look through the list of possible targets for a target that can
1722 execute a run or attach command without any other data. This is
1723 used to locate the default process stratum.
1725 Result is always valid (error() is called for errors). */
1727 static struct target_ops
*
1728 find_default_run_target (char *do_mesg
)
1730 struct target_ops
**t
;
1731 struct target_ops
*runable
= NULL
;
1736 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
1739 if ((*t
)->to_can_run
&& target_can_run (*t
))
1747 error (_("Don't know how to %s. Try \"help target\"."), do_mesg
);
1753 find_default_attach (char *args
, int from_tty
)
1755 struct target_ops
*t
;
1757 t
= find_default_run_target ("attach");
1758 (t
->to_attach
) (args
, from_tty
);
1763 find_default_create_inferior (char *exec_file
, char *allargs
, char **env
,
1766 struct target_ops
*t
;
1768 t
= find_default_run_target ("run");
1769 (t
->to_create_inferior
) (exec_file
, allargs
, env
, from_tty
);
1774 default_region_ok_for_hw_watchpoint (CORE_ADDR addr
, int len
)
1776 return (len
<= TYPE_LENGTH (builtin_type_void_data_ptr
));
1792 return_minus_one (void)
1798 * Resize the to_sections pointer. Also make sure that anyone that
1799 * was holding on to an old value of it gets updated.
1800 * Returns the old size.
1804 target_resize_to_sections (struct target_ops
*target
, int num_added
)
1806 struct target_ops
**t
;
1807 struct section_table
*old_value
;
1810 old_value
= target
->to_sections
;
1812 if (target
->to_sections
)
1814 old_count
= target
->to_sections_end
- target
->to_sections
;
1815 target
->to_sections
= (struct section_table
*)
1816 xrealloc ((char *) target
->to_sections
,
1817 (sizeof (struct section_table
)) * (num_added
+ old_count
));
1822 target
->to_sections
= (struct section_table
*)
1823 xmalloc ((sizeof (struct section_table
)) * num_added
);
1825 target
->to_sections_end
= target
->to_sections
+ (num_added
+ old_count
);
1827 /* Check to see if anyone else was pointing to this structure.
1828 If old_value was null, then no one was. */
1832 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
1835 if ((*t
)->to_sections
== old_value
)
1837 (*t
)->to_sections
= target
->to_sections
;
1838 (*t
)->to_sections_end
= target
->to_sections_end
;
1841 /* There is a flattened view of the target stack in current_target,
1842 so its to_sections pointer might also need updating. */
1843 if (current_target
.to_sections
== old_value
)
1845 current_target
.to_sections
= target
->to_sections
;
1846 current_target
.to_sections_end
= target
->to_sections_end
;
1854 /* Remove all target sections taken from ABFD.
1856 Scan the current target stack for targets whose section tables
1857 refer to sections from BFD, and remove those sections. We use this
1858 when we notice that the inferior has unloaded a shared object, for
1861 remove_target_sections (bfd
*abfd
)
1863 struct target_ops
**t
;
1865 for (t
= target_structs
; t
< target_structs
+ target_struct_size
; t
++)
1867 struct section_table
*src
, *dest
;
1869 dest
= (*t
)->to_sections
;
1870 for (src
= (*t
)->to_sections
; src
< (*t
)->to_sections_end
; src
++)
1871 if (src
->bfd
!= abfd
)
1873 /* Keep this section. */
1874 if (dest
< src
) *dest
= *src
;
1878 /* If we've dropped any sections, resize the section table. */
1880 target_resize_to_sections (*t
, dest
- src
);
1887 /* Find a single runnable target in the stack and return it. If for
1888 some reason there is more than one, return NULL. */
1891 find_run_target (void)
1893 struct target_ops
**t
;
1894 struct target_ops
*runable
= NULL
;
1899 for (t
= target_structs
; t
< target_structs
+ target_struct_size
; ++t
)
1901 if ((*t
)->to_can_run
&& target_can_run (*t
))
1908 return (count
== 1 ? runable
: NULL
);
1911 /* Find a single core_stratum target in the list of targets and return it.
1912 If for some reason there is more than one, return NULL. */
1915 find_core_target (void)
1917 struct target_ops
**t
;
1918 struct target_ops
*runable
= NULL
;
1923 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
1926 if ((*t
)->to_stratum
== core_stratum
)
1933 return (count
== 1 ? runable
: NULL
);
1937 * Find the next target down the stack from the specified target.
1941 find_target_beneath (struct target_ops
*t
)
1947 /* The inferior process has died. Long live the inferior! */
1950 generic_mourn_inferior (void)
1952 extern int show_breakpoint_hit_counts
;
1954 inferior_ptid
= null_ptid
;
1956 breakpoint_init_inferior (inf_exited
);
1957 registers_changed ();
1959 reopen_exec_file ();
1960 reinit_frame_cache ();
1962 /* It is confusing to the user for ignore counts to stick around
1963 from previous runs of the inferior. So clear them. */
1964 /* However, it is more confusing for the ignore counts to disappear when
1965 using hit counts. So don't clear them if we're counting hits. */
1966 if (!show_breakpoint_hit_counts
)
1967 breakpoint_clear_ignore_counts ();
1969 if (deprecated_detach_hook
)
1970 deprecated_detach_hook ();
1973 /* Helper function for child_wait and the derivatives of child_wait.
1974 HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
1975 translation of that in OURSTATUS. */
1977 store_waitstatus (struct target_waitstatus
*ourstatus
, int hoststatus
)
1979 #ifdef CHILD_SPECIAL_WAITSTATUS
1980 /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS
1981 if it wants to deal with hoststatus. */
1982 if (CHILD_SPECIAL_WAITSTATUS (ourstatus
, hoststatus
))
1986 if (WIFEXITED (hoststatus
))
1988 ourstatus
->kind
= TARGET_WAITKIND_EXITED
;
1989 ourstatus
->value
.integer
= WEXITSTATUS (hoststatus
);
1991 else if (!WIFSTOPPED (hoststatus
))
1993 ourstatus
->kind
= TARGET_WAITKIND_SIGNALLED
;
1994 ourstatus
->value
.sig
= target_signal_from_host (WTERMSIG (hoststatus
));
1998 ourstatus
->kind
= TARGET_WAITKIND_STOPPED
;
1999 ourstatus
->value
.sig
= target_signal_from_host (WSTOPSIG (hoststatus
));
2003 /* Returns zero to leave the inferior alone, one to interrupt it. */
2004 int (*target_activity_function
) (void);
2005 int target_activity_fd
;
2007 /* Convert a normal process ID to a string. Returns the string in a
2011 normal_pid_to_str (ptid_t ptid
)
2013 static char buf
[32];
2015 xsnprintf (buf
, sizeof buf
, "process %d", ptid_get_pid (ptid
));
2019 /* Error-catcher for target_find_memory_regions */
2020 static int dummy_find_memory_regions (int (*ignore1
) (), void *ignore2
)
2022 error (_("No target."));
2026 /* Error-catcher for target_make_corefile_notes */
2027 static char * dummy_make_corefile_notes (bfd
*ignore1
, int *ignore2
)
2029 error (_("No target."));
2033 /* Set up the handful of non-empty slots needed by the dummy target
2037 init_dummy_target (void)
2039 dummy_target
.to_shortname
= "None";
2040 dummy_target
.to_longname
= "None";
2041 dummy_target
.to_doc
= "";
2042 dummy_target
.to_attach
= find_default_attach
;
2043 dummy_target
.to_create_inferior
= find_default_create_inferior
;
2044 dummy_target
.to_pid_to_str
= normal_pid_to_str
;
2045 dummy_target
.to_stratum
= dummy_stratum
;
2046 dummy_target
.to_find_memory_regions
= dummy_find_memory_regions
;
2047 dummy_target
.to_make_corefile_notes
= dummy_make_corefile_notes
;
2048 dummy_target
.to_xfer_partial
= default_xfer_partial
;
2049 dummy_target
.to_magic
= OPS_MAGIC
;
2053 debug_to_open (char *args
, int from_tty
)
2055 debug_target
.to_open (args
, from_tty
);
2057 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
2061 debug_to_close (int quitting
)
2063 target_close (&debug_target
, quitting
);
2064 fprintf_unfiltered (gdb_stdlog
, "target_close (%d)\n", quitting
);
2068 target_close (struct target_ops
*targ
, int quitting
)
2070 if (targ
->to_xclose
!= NULL
)
2071 targ
->to_xclose (targ
, quitting
);
2072 else if (targ
->to_close
!= NULL
)
2073 targ
->to_close (quitting
);
2077 debug_to_attach (char *args
, int from_tty
)
2079 debug_target
.to_attach (args
, from_tty
);
2081 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n", args
, from_tty
);
2086 debug_to_post_attach (int pid
)
2088 debug_target
.to_post_attach (pid
);
2090 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
2094 debug_to_detach (char *args
, int from_tty
)
2096 debug_target
.to_detach (args
, from_tty
);
2098 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n", args
, from_tty
);
2102 debug_to_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2104 debug_target
.to_resume (ptid
, step
, siggnal
);
2106 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n", PIDGET (ptid
),
2107 step
? "step" : "continue",
2108 target_signal_to_name (siggnal
));
2112 debug_to_wait (ptid_t ptid
, struct target_waitstatus
*status
)
2116 retval
= debug_target
.to_wait (ptid
, status
);
2118 fprintf_unfiltered (gdb_stdlog
,
2119 "target_wait (%d, status) = %d, ", PIDGET (ptid
),
2121 fprintf_unfiltered (gdb_stdlog
, "status->kind = ");
2122 switch (status
->kind
)
2124 case TARGET_WAITKIND_EXITED
:
2125 fprintf_unfiltered (gdb_stdlog
, "exited, status = %d\n",
2126 status
->value
.integer
);
2128 case TARGET_WAITKIND_STOPPED
:
2129 fprintf_unfiltered (gdb_stdlog
, "stopped, signal = %s\n",
2130 target_signal_to_name (status
->value
.sig
));
2132 case TARGET_WAITKIND_SIGNALLED
:
2133 fprintf_unfiltered (gdb_stdlog
, "signalled, signal = %s\n",
2134 target_signal_to_name (status
->value
.sig
));
2136 case TARGET_WAITKIND_LOADED
:
2137 fprintf_unfiltered (gdb_stdlog
, "loaded\n");
2139 case TARGET_WAITKIND_FORKED
:
2140 fprintf_unfiltered (gdb_stdlog
, "forked\n");
2142 case TARGET_WAITKIND_VFORKED
:
2143 fprintf_unfiltered (gdb_stdlog
, "vforked\n");
2145 case TARGET_WAITKIND_EXECD
:
2146 fprintf_unfiltered (gdb_stdlog
, "execd\n");
2148 case TARGET_WAITKIND_SPURIOUS
:
2149 fprintf_unfiltered (gdb_stdlog
, "spurious\n");
2152 fprintf_unfiltered (gdb_stdlog
, "unknown???\n");
2160 debug_print_register (const char * func
, int regno
)
2162 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
2163 if (regno
>= 0 && regno
< NUM_REGS
+ NUM_PSEUDO_REGS
2164 && REGISTER_NAME (regno
) != NULL
&& REGISTER_NAME (regno
)[0] != '\0')
2165 fprintf_unfiltered (gdb_stdlog
, "(%s)", REGISTER_NAME (regno
));
2167 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
2171 unsigned char buf
[MAX_REGISTER_SIZE
];
2172 deprecated_read_register_gen (regno
, buf
);
2173 fprintf_unfiltered (gdb_stdlog
, " = ");
2174 for (i
= 0; i
< register_size (current_gdbarch
, regno
); i
++)
2176 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
2178 if (register_size (current_gdbarch
, regno
) <= sizeof (LONGEST
))
2180 fprintf_unfiltered (gdb_stdlog
, " 0x%s %s",
2181 paddr_nz (read_register (regno
)),
2182 paddr_d (read_register (regno
)));
2185 fprintf_unfiltered (gdb_stdlog
, "\n");
2189 debug_to_fetch_registers (int regno
)
2191 debug_target
.to_fetch_registers (regno
);
2192 debug_print_register ("target_fetch_registers", regno
);
2196 debug_to_store_registers (int regno
)
2198 debug_target
.to_store_registers (regno
);
2199 debug_print_register ("target_store_registers", regno
);
2200 fprintf_unfiltered (gdb_stdlog
, "\n");
2204 debug_to_prepare_to_store (void)
2206 debug_target
.to_prepare_to_store ();
2208 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
2212 deprecated_debug_xfer_memory (CORE_ADDR memaddr
, bfd_byte
*myaddr
, int len
,
2213 int write
, struct mem_attrib
*attrib
,
2214 struct target_ops
*target
)
2218 retval
= debug_target
.deprecated_xfer_memory (memaddr
, myaddr
, len
, write
,
2221 fprintf_unfiltered (gdb_stdlog
,
2222 "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d",
2223 (unsigned int) memaddr
, /* possable truncate long long */
2224 len
, write
? "write" : "read", retval
);
2230 fputs_unfiltered (", bytes =", gdb_stdlog
);
2231 for (i
= 0; i
< retval
; i
++)
2233 if ((((long) &(myaddr
[i
])) & 0xf) == 0)
2235 if (targetdebug
< 2 && i
> 0)
2237 fprintf_unfiltered (gdb_stdlog
, " ...");
2240 fprintf_unfiltered (gdb_stdlog
, "\n");
2243 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
2247 fputc_unfiltered ('\n', gdb_stdlog
);
2253 debug_to_files_info (struct target_ops
*target
)
2255 debug_target
.to_files_info (target
);
2257 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
2261 debug_to_insert_breakpoint (struct bp_target_info
*bp_tgt
)
2265 retval
= debug_target
.to_insert_breakpoint (bp_tgt
);
2267 fprintf_unfiltered (gdb_stdlog
,
2268 "target_insert_breakpoint (0x%lx, xxx) = %ld\n",
2269 (unsigned long) bp_tgt
->placed_address
,
2270 (unsigned long) retval
);
2275 debug_to_remove_breakpoint (struct bp_target_info
*bp_tgt
)
2279 retval
= debug_target
.to_remove_breakpoint (bp_tgt
);
2281 fprintf_unfiltered (gdb_stdlog
,
2282 "target_remove_breakpoint (0x%lx, xxx) = %ld\n",
2283 (unsigned long) bp_tgt
->placed_address
,
2284 (unsigned long) retval
);
2289 debug_to_can_use_hw_breakpoint (int type
, int cnt
, int from_tty
)
2293 retval
= debug_target
.to_can_use_hw_breakpoint (type
, cnt
, from_tty
);
2295 fprintf_unfiltered (gdb_stdlog
,
2296 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
2297 (unsigned long) type
,
2298 (unsigned long) cnt
,
2299 (unsigned long) from_tty
,
2300 (unsigned long) retval
);
2305 debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr
, int len
)
2309 retval
= debug_target
.to_region_ok_for_hw_watchpoint (addr
, len
);
2311 fprintf_unfiltered (gdb_stdlog
,
2312 "TARGET_REGION_OK_FOR_HW_WATCHPOINT (%ld, %ld) = 0x%lx\n",
2313 (unsigned long) addr
,
2314 (unsigned long) len
,
2315 (unsigned long) retval
);
2320 debug_to_stopped_by_watchpoint (void)
2324 retval
= debug_target
.to_stopped_by_watchpoint ();
2326 fprintf_unfiltered (gdb_stdlog
,
2327 "STOPPED_BY_WATCHPOINT () = %ld\n",
2328 (unsigned long) retval
);
2333 debug_to_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr
)
2337 retval
= debug_target
.to_stopped_data_address (target
, addr
);
2339 fprintf_unfiltered (gdb_stdlog
,
2340 "target_stopped_data_address ([0x%lx]) = %ld\n",
2341 (unsigned long)*addr
,
2342 (unsigned long)retval
);
2347 debug_to_insert_hw_breakpoint (struct bp_target_info
*bp_tgt
)
2351 retval
= debug_target
.to_insert_hw_breakpoint (bp_tgt
);
2353 fprintf_unfiltered (gdb_stdlog
,
2354 "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n",
2355 (unsigned long) bp_tgt
->placed_address
,
2356 (unsigned long) retval
);
2361 debug_to_remove_hw_breakpoint (struct bp_target_info
*bp_tgt
)
2365 retval
= debug_target
.to_remove_hw_breakpoint (bp_tgt
);
2367 fprintf_unfiltered (gdb_stdlog
,
2368 "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n",
2369 (unsigned long) bp_tgt
->placed_address
,
2370 (unsigned long) retval
);
2375 debug_to_insert_watchpoint (CORE_ADDR addr
, int len
, int type
)
2379 retval
= debug_target
.to_insert_watchpoint (addr
, len
, type
);
2381 fprintf_unfiltered (gdb_stdlog
,
2382 "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n",
2383 (unsigned long) addr
, len
, type
, (unsigned long) retval
);
2388 debug_to_remove_watchpoint (CORE_ADDR addr
, int len
, int type
)
2392 retval
= debug_target
.to_remove_watchpoint (addr
, len
, type
);
2394 fprintf_unfiltered (gdb_stdlog
,
2395 "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n",
2396 (unsigned long) addr
, len
, type
, (unsigned long) retval
);
2401 debug_to_terminal_init (void)
2403 debug_target
.to_terminal_init ();
2405 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
2409 debug_to_terminal_inferior (void)
2411 debug_target
.to_terminal_inferior ();
2413 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
2417 debug_to_terminal_ours_for_output (void)
2419 debug_target
.to_terminal_ours_for_output ();
2421 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
2425 debug_to_terminal_ours (void)
2427 debug_target
.to_terminal_ours ();
2429 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
2433 debug_to_terminal_save_ours (void)
2435 debug_target
.to_terminal_save_ours ();
2437 fprintf_unfiltered (gdb_stdlog
, "target_terminal_save_ours ()\n");
2441 debug_to_terminal_info (char *arg
, int from_tty
)
2443 debug_target
.to_terminal_info (arg
, from_tty
);
2445 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
2450 debug_to_kill (void)
2452 debug_target
.to_kill ();
2454 fprintf_unfiltered (gdb_stdlog
, "target_kill ()\n");
2458 debug_to_load (char *args
, int from_tty
)
2460 debug_target
.to_load (args
, from_tty
);
2462 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
2466 debug_to_lookup_symbol (char *name
, CORE_ADDR
*addrp
)
2470 retval
= debug_target
.to_lookup_symbol (name
, addrp
);
2472 fprintf_unfiltered (gdb_stdlog
, "target_lookup_symbol (%s, xxx)\n", name
);
2478 debug_to_create_inferior (char *exec_file
, char *args
, char **env
,
2481 debug_target
.to_create_inferior (exec_file
, args
, env
, from_tty
);
2483 fprintf_unfiltered (gdb_stdlog
, "target_create_inferior (%s, %s, xxx, %d)\n",
2484 exec_file
, args
, from_tty
);
2488 debug_to_post_startup_inferior (ptid_t ptid
)
2490 debug_target
.to_post_startup_inferior (ptid
);
2492 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
2497 debug_to_acknowledge_created_inferior (int pid
)
2499 debug_target
.to_acknowledge_created_inferior (pid
);
2501 fprintf_unfiltered (gdb_stdlog
, "target_acknowledge_created_inferior (%d)\n",
2506 debug_to_insert_fork_catchpoint (int pid
)
2508 debug_target
.to_insert_fork_catchpoint (pid
);
2510 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d)\n",
2515 debug_to_remove_fork_catchpoint (int pid
)
2519 retval
= debug_target
.to_remove_fork_catchpoint (pid
);
2521 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
2528 debug_to_insert_vfork_catchpoint (int pid
)
2530 debug_target
.to_insert_vfork_catchpoint (pid
);
2532 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d)\n",
2537 debug_to_remove_vfork_catchpoint (int pid
)
2541 retval
= debug_target
.to_remove_vfork_catchpoint (pid
);
2543 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
2550 debug_to_insert_exec_catchpoint (int pid
)
2552 debug_target
.to_insert_exec_catchpoint (pid
);
2554 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d)\n",
2559 debug_to_remove_exec_catchpoint (int pid
)
2563 retval
= debug_target
.to_remove_exec_catchpoint (pid
);
2565 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
2572 debug_to_reported_exec_events_per_exec_call (void)
2574 int reported_exec_events
;
2576 reported_exec_events
= debug_target
.to_reported_exec_events_per_exec_call ();
2578 fprintf_unfiltered (gdb_stdlog
,
2579 "target_reported_exec_events_per_exec_call () = %d\n",
2580 reported_exec_events
);
2582 return reported_exec_events
;
2586 debug_to_has_exited (int pid
, int wait_status
, int *exit_status
)
2590 has_exited
= debug_target
.to_has_exited (pid
, wait_status
, exit_status
);
2592 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
2593 pid
, wait_status
, *exit_status
, has_exited
);
2599 debug_to_mourn_inferior (void)
2601 debug_target
.to_mourn_inferior ();
2603 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2607 debug_to_can_run (void)
2611 retval
= debug_target
.to_can_run ();
2613 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
2619 debug_to_notice_signals (ptid_t ptid
)
2621 debug_target
.to_notice_signals (ptid
);
2623 fprintf_unfiltered (gdb_stdlog
, "target_notice_signals (%d)\n",
2628 debug_to_thread_alive (ptid_t ptid
)
2632 retval
= debug_target
.to_thread_alive (ptid
);
2634 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
2635 PIDGET (ptid
), retval
);
2641 debug_to_find_new_threads (void)
2643 debug_target
.to_find_new_threads ();
2645 fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog
);
2649 debug_to_stop (void)
2651 debug_target
.to_stop ();
2653 fprintf_unfiltered (gdb_stdlog
, "target_stop ()\n");
2657 debug_to_rcmd (char *command
,
2658 struct ui_file
*outbuf
)
2660 debug_target
.to_rcmd (command
, outbuf
);
2661 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
2664 static struct symtab_and_line
*
2665 debug_to_enable_exception_callback (enum exception_event_kind kind
, int enable
)
2667 struct symtab_and_line
*result
;
2668 result
= debug_target
.to_enable_exception_callback (kind
, enable
);
2669 fprintf_unfiltered (gdb_stdlog
,
2670 "target get_exception_callback_sal (%d, %d)\n",
2675 static struct exception_event_record
*
2676 debug_to_get_current_exception_event (void)
2678 struct exception_event_record
*result
;
2679 result
= debug_target
.to_get_current_exception_event ();
2680 fprintf_unfiltered (gdb_stdlog
, "target get_current_exception_event ()\n");
2685 debug_to_pid_to_exec_file (int pid
)
2689 exec_file
= debug_target
.to_pid_to_exec_file (pid
);
2691 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
2698 setup_target_debug (void)
2700 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
2702 current_target
.to_open
= debug_to_open
;
2703 current_target
.to_close
= debug_to_close
;
2704 current_target
.to_attach
= debug_to_attach
;
2705 current_target
.to_post_attach
= debug_to_post_attach
;
2706 current_target
.to_detach
= debug_to_detach
;
2707 current_target
.to_resume
= debug_to_resume
;
2708 current_target
.to_wait
= debug_to_wait
;
2709 current_target
.to_fetch_registers
= debug_to_fetch_registers
;
2710 current_target
.to_store_registers
= debug_to_store_registers
;
2711 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
2712 current_target
.deprecated_xfer_memory
= deprecated_debug_xfer_memory
;
2713 current_target
.to_files_info
= debug_to_files_info
;
2714 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
2715 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
2716 current_target
.to_can_use_hw_breakpoint
= debug_to_can_use_hw_breakpoint
;
2717 current_target
.to_insert_hw_breakpoint
= debug_to_insert_hw_breakpoint
;
2718 current_target
.to_remove_hw_breakpoint
= debug_to_remove_hw_breakpoint
;
2719 current_target
.to_insert_watchpoint
= debug_to_insert_watchpoint
;
2720 current_target
.to_remove_watchpoint
= debug_to_remove_watchpoint
;
2721 current_target
.to_stopped_by_watchpoint
= debug_to_stopped_by_watchpoint
;
2722 current_target
.to_stopped_data_address
= debug_to_stopped_data_address
;
2723 current_target
.to_region_ok_for_hw_watchpoint
= debug_to_region_ok_for_hw_watchpoint
;
2724 current_target
.to_terminal_init
= debug_to_terminal_init
;
2725 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
2726 current_target
.to_terminal_ours_for_output
= debug_to_terminal_ours_for_output
;
2727 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
2728 current_target
.to_terminal_save_ours
= debug_to_terminal_save_ours
;
2729 current_target
.to_terminal_info
= debug_to_terminal_info
;
2730 current_target
.to_kill
= debug_to_kill
;
2731 current_target
.to_load
= debug_to_load
;
2732 current_target
.to_lookup_symbol
= debug_to_lookup_symbol
;
2733 current_target
.to_create_inferior
= debug_to_create_inferior
;
2734 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
2735 current_target
.to_acknowledge_created_inferior
= debug_to_acknowledge_created_inferior
;
2736 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
2737 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
2738 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
2739 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
2740 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
2741 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
2742 current_target
.to_reported_exec_events_per_exec_call
= debug_to_reported_exec_events_per_exec_call
;
2743 current_target
.to_has_exited
= debug_to_has_exited
;
2744 current_target
.to_mourn_inferior
= debug_to_mourn_inferior
;
2745 current_target
.to_can_run
= debug_to_can_run
;
2746 current_target
.to_notice_signals
= debug_to_notice_signals
;
2747 current_target
.to_thread_alive
= debug_to_thread_alive
;
2748 current_target
.to_find_new_threads
= debug_to_find_new_threads
;
2749 current_target
.to_stop
= debug_to_stop
;
2750 current_target
.to_rcmd
= debug_to_rcmd
;
2751 current_target
.to_enable_exception_callback
= debug_to_enable_exception_callback
;
2752 current_target
.to_get_current_exception_event
= debug_to_get_current_exception_event
;
2753 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
2757 static char targ_desc
[] =
2758 "Names of targets and files being debugged.\n\
2759 Shows the entire stack of targets currently in use (including the exec-file,\n\
2760 core-file, and process, if any), as well as the symbol file name.";
2763 do_monitor_command (char *cmd
,
2766 if ((current_target
.to_rcmd
2767 == (void (*) (char *, struct ui_file
*)) tcomplain
)
2768 || (current_target
.to_rcmd
== debug_to_rcmd
2769 && (debug_target
.to_rcmd
2770 == (void (*) (char *, struct ui_file
*)) tcomplain
)))
2771 error (_("\"monitor\" command not supported by this target."));
2772 target_rcmd (cmd
, gdb_stdtarg
);
2775 /* Print the name of each layers of our target stack. */
2778 maintenance_print_target_stack (char *cmd
, int from_tty
)
2780 struct target_ops
*t
;
2782 printf_filtered (_("The current target stack is:\n"));
2784 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2786 printf_filtered (" - %s (%s)\n", t
->to_shortname
, t
->to_longname
);
2791 initialize_targets (void)
2793 init_dummy_target ();
2794 push_target (&dummy_target
);
2796 add_info ("target", target_info
, targ_desc
);
2797 add_info ("files", target_info
, targ_desc
);
2799 add_setshow_zinteger_cmd ("target", class_maintenance
, &targetdebug
, _("\
2800 Set target debugging."), _("\
2801 Show target debugging."), _("\
2802 When non-zero, target debugging is enabled. Higher numbers are more\n\
2803 verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
2807 &setdebuglist
, &showdebuglist
);
2809 add_setshow_boolean_cmd ("trust-readonly-sections", class_support
,
2810 &trust_readonly
, _("\
2811 Set mode for reading from readonly sections."), _("\
2812 Show mode for reading from readonly sections."), _("\
2813 When this mode is on, memory reads from readonly sections (such as .text)\n\
2814 will be read from the object file instead of from the target. This will\n\
2815 result in significant performance improvement for remote targets."),
2817 show_trust_readonly
,
2818 &setlist
, &showlist
);
2820 add_com ("monitor", class_obscure
, do_monitor_command
,
2821 _("Send a command to the remote monitor (remote targets only)."));
2823 add_cmd ("target-stack", class_maintenance
, maintenance_print_target_stack
,
2824 _("Print the name of each layer of the internal target stack."),
2825 &maintenanceprintlist
);
2827 target_dcache
= dcache_init ();