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 (struct regcache
*, int);
111 static void debug_to_store_registers (struct regcache
*, int);
113 static void debug_to_prepare_to_store (struct regcache
*);
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
,
506 (void (*) (struct regcache
*, int))
508 de_fault (to_store_registers
,
509 (void (*) (struct regcache
*, int))
511 de_fault (to_prepare_to_store
,
512 (void (*) (struct regcache
*))
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
);
1087 /* We want to continue past core files to executables, but not
1088 past a running target's memory. */
1089 if (ops
->to_has_all_memory
)
1094 while (ops
!= NULL
);
1096 /* If we still haven't got anything, return the last error. We
1102 target_xfer_partial (struct target_ops
*ops
,
1103 enum target_object object
, const char *annex
,
1104 void *readbuf
, const void *writebuf
,
1105 ULONGEST offset
, LONGEST len
)
1109 gdb_assert (ops
->to_xfer_partial
!= NULL
);
1111 /* If this is a memory transfer, let the memory-specific code
1112 have a look at it instead. Memory transfers are more
1114 if (object
== TARGET_OBJECT_MEMORY
)
1115 retval
= memory_xfer_partial (ops
, readbuf
, writebuf
, offset
, len
);
1118 enum target_object raw_object
= object
;
1120 /* If this is a raw memory transfer, request the normal
1121 memory object from other layers. */
1122 if (raw_object
== TARGET_OBJECT_RAW_MEMORY
)
1123 raw_object
= TARGET_OBJECT_MEMORY
;
1125 retval
= ops
->to_xfer_partial (ops
, raw_object
, annex
, readbuf
,
1126 writebuf
, offset
, len
);
1131 const unsigned char *myaddr
= NULL
;
1133 fprintf_unfiltered (gdb_stdlog
,
1134 "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s",
1137 (annex
? annex
: "(null)"),
1138 (long) readbuf
, (long) writebuf
,
1139 paddr_nz (offset
), paddr_d (len
), paddr_d (retval
));
1145 if (retval
> 0 && myaddr
!= NULL
)
1149 fputs_unfiltered (", bytes =", gdb_stdlog
);
1150 for (i
= 0; i
< retval
; i
++)
1152 if ((((long) &(myaddr
[i
])) & 0xf) == 0)
1154 if (targetdebug
< 2 && i
> 0)
1156 fprintf_unfiltered (gdb_stdlog
, " ...");
1159 fprintf_unfiltered (gdb_stdlog
, "\n");
1162 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
1166 fputc_unfiltered ('\n', gdb_stdlog
);
1171 /* Read LEN bytes of target memory at address MEMADDR, placing the results in
1172 GDB's memory at MYADDR. Returns either 0 for success or an errno value
1173 if any error occurs.
1175 If an error occurs, no guarantee is made about the contents of the data at
1176 MYADDR. In particular, the caller should not depend upon partial reads
1177 filling the buffer with good data. There is no way for the caller to know
1178 how much good data might have been transfered anyway. Callers that can
1179 deal with partial reads should call target_read (which will retry until
1180 it makes no progress, and then return how much was transferred). */
1183 target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, int len
)
1185 if (target_read (¤t_target
, TARGET_OBJECT_MEMORY
, NULL
,
1186 myaddr
, memaddr
, len
) == len
)
1193 target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, int len
)
1195 if (target_write (¤t_target
, TARGET_OBJECT_MEMORY
, NULL
,
1196 myaddr
, memaddr
, len
) == len
)
1202 /* Fetch the target's memory map. */
1205 target_memory_map (void)
1207 VEC(mem_region_s
) *result
;
1208 struct mem_region
*last_one
, *this_one
;
1210 struct target_ops
*t
;
1213 fprintf_unfiltered (gdb_stdlog
, "target_memory_map ()\n");
1215 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1216 if (t
->to_memory_map
!= NULL
)
1222 result
= t
->to_memory_map (t
);
1226 qsort (VEC_address (mem_region_s
, result
),
1227 VEC_length (mem_region_s
, result
),
1228 sizeof (struct mem_region
), mem_region_cmp
);
1230 /* Check that regions do not overlap. Simultaneously assign
1231 a numbering for the "mem" commands to use to refer to
1234 for (ix
= 0; VEC_iterate (mem_region_s
, result
, ix
, this_one
); ix
++)
1236 this_one
->number
= ix
;
1238 if (last_one
&& last_one
->hi
> this_one
->lo
)
1240 warning (_("Overlapping regions in memory map: ignoring"));
1241 VEC_free (mem_region_s
, result
);
1244 last_one
= this_one
;
1251 target_flash_erase (ULONGEST address
, LONGEST length
)
1253 struct target_ops
*t
;
1255 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1256 if (t
->to_flash_erase
!= NULL
)
1259 fprintf_unfiltered (gdb_stdlog
, "target_flash_erase (%s, %s)\n",
1260 paddr (address
), phex (length
, 0));
1261 t
->to_flash_erase (t
, address
, length
);
1269 target_flash_done (void)
1271 struct target_ops
*t
;
1273 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1274 if (t
->to_flash_done
!= NULL
)
1277 fprintf_unfiltered (gdb_stdlog
, "target_flash_done\n");
1278 t
->to_flash_done (t
);
1285 #ifndef target_stopped_data_address_p
1287 target_stopped_data_address_p (struct target_ops
*target
)
1289 if (target
->to_stopped_data_address
1290 == (int (*) (struct target_ops
*, CORE_ADDR
*)) return_zero
)
1292 if (target
->to_stopped_data_address
== debug_to_stopped_data_address
1293 && (debug_target
.to_stopped_data_address
1294 == (int (*) (struct target_ops
*, CORE_ADDR
*)) return_zero
))
1301 show_trust_readonly (struct ui_file
*file
, int from_tty
,
1302 struct cmd_list_element
*c
, const char *value
)
1304 fprintf_filtered (file
, _("\
1305 Mode for reading from readonly sections is %s.\n"),
1309 /* More generic transfers. */
1312 default_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1313 const char *annex
, gdb_byte
*readbuf
,
1314 const gdb_byte
*writebuf
, ULONGEST offset
, LONGEST len
)
1316 if (object
== TARGET_OBJECT_MEMORY
1317 && ops
->deprecated_xfer_memory
!= NULL
)
1318 /* If available, fall back to the target's
1319 "deprecated_xfer_memory" method. */
1323 if (writebuf
!= NULL
)
1325 void *buffer
= xmalloc (len
);
1326 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
1327 memcpy (buffer
, writebuf
, len
);
1328 xfered
= ops
->deprecated_xfer_memory (offset
, buffer
, len
,
1329 1/*write*/, NULL
, ops
);
1330 do_cleanups (cleanup
);
1332 if (readbuf
!= NULL
)
1333 xfered
= ops
->deprecated_xfer_memory (offset
, readbuf
, len
, 0/*read*/,
1337 else if (xfered
== 0 && errno
== 0)
1338 /* "deprecated_xfer_memory" uses 0, cross checked against
1339 ERRNO as one indication of an error. */
1344 else if (ops
->beneath
!= NULL
)
1345 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
1346 readbuf
, writebuf
, offset
, len
);
1351 /* The xfer_partial handler for the topmost target. Unlike the default,
1352 it does not need to handle memory specially; it just passes all
1353 requests down the stack. */
1356 current_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1357 const char *annex
, gdb_byte
*readbuf
,
1358 const gdb_byte
*writebuf
, ULONGEST offset
, LONGEST len
)
1360 if (ops
->beneath
!= NULL
)
1361 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
1362 readbuf
, writebuf
, offset
, len
);
1367 /* Target vector read/write partial wrapper functions.
1369 NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial
1370 (inbuf, outbuf)", instead of separate read/write methods, make life
1374 target_read_partial (struct target_ops
*ops
,
1375 enum target_object object
,
1376 const char *annex
, gdb_byte
*buf
,
1377 ULONGEST offset
, LONGEST len
)
1379 return target_xfer_partial (ops
, object
, annex
, buf
, NULL
, offset
, len
);
1383 target_write_partial (struct target_ops
*ops
,
1384 enum target_object object
,
1385 const char *annex
, const gdb_byte
*buf
,
1386 ULONGEST offset
, LONGEST len
)
1388 return target_xfer_partial (ops
, object
, annex
, NULL
, buf
, offset
, len
);
1391 /* Wrappers to perform the full transfer. */
1393 target_read (struct target_ops
*ops
,
1394 enum target_object object
,
1395 const char *annex
, gdb_byte
*buf
,
1396 ULONGEST offset
, LONGEST len
)
1399 while (xfered
< len
)
1401 LONGEST xfer
= target_read_partial (ops
, object
, annex
,
1402 (gdb_byte
*) buf
+ xfered
,
1403 offset
+ xfered
, len
- xfered
);
1404 /* Call an observer, notifying them of the xfer progress? */
1415 /* An alternative to target_write with progress callbacks. */
1418 target_write_with_progress (struct target_ops
*ops
,
1419 enum target_object object
,
1420 const char *annex
, const gdb_byte
*buf
,
1421 ULONGEST offset
, LONGEST len
,
1422 void (*progress
) (ULONGEST
, void *), void *baton
)
1426 /* Give the progress callback a chance to set up. */
1428 (*progress
) (0, baton
);
1430 while (xfered
< len
)
1432 LONGEST xfer
= target_write_partial (ops
, object
, annex
,
1433 (gdb_byte
*) buf
+ xfered
,
1434 offset
+ xfered
, len
- xfered
);
1442 (*progress
) (xfer
, baton
);
1451 target_write (struct target_ops
*ops
,
1452 enum target_object object
,
1453 const char *annex
, const gdb_byte
*buf
,
1454 ULONGEST offset
, LONGEST len
)
1456 return target_write_with_progress (ops
, object
, annex
, buf
, offset
, len
,
1460 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
1461 the size of the transferred data. PADDING additional bytes are
1462 available in *BUF_P. This is a helper function for
1463 target_read_alloc; see the declaration of that function for more
1467 target_read_alloc_1 (struct target_ops
*ops
, enum target_object object
,
1468 const char *annex
, gdb_byte
**buf_p
, int padding
)
1470 size_t buf_alloc
, buf_pos
;
1474 /* This function does not have a length parameter; it reads the
1475 entire OBJECT). Also, it doesn't support objects fetched partly
1476 from one target and partly from another (in a different stratum,
1477 e.g. a core file and an executable). Both reasons make it
1478 unsuitable for reading memory. */
1479 gdb_assert (object
!= TARGET_OBJECT_MEMORY
);
1481 /* Start by reading up to 4K at a time. The target will throttle
1482 this number down if necessary. */
1484 buf
= xmalloc (buf_alloc
);
1488 n
= target_read_partial (ops
, object
, annex
, &buf
[buf_pos
],
1489 buf_pos
, buf_alloc
- buf_pos
- padding
);
1492 /* An error occurred. */
1498 /* Read all there was. */
1508 /* If the buffer is filling up, expand it. */
1509 if (buf_alloc
< buf_pos
* 2)
1512 buf
= xrealloc (buf
, buf_alloc
);
1519 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
1520 the size of the transferred data. See the declaration in "target.h"
1521 function for more information about the return value. */
1524 target_read_alloc (struct target_ops
*ops
, enum target_object object
,
1525 const char *annex
, gdb_byte
**buf_p
)
1527 return target_read_alloc_1 (ops
, object
, annex
, buf_p
, 0);
1530 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
1531 returned as a string, allocated using xmalloc. If an error occurs
1532 or the transfer is unsupported, NULL is returned. Empty objects
1533 are returned as allocated but empty strings. A warning is issued
1534 if the result contains any embedded NUL bytes. */
1537 target_read_stralloc (struct target_ops
*ops
, enum target_object object
,
1541 LONGEST transferred
;
1543 transferred
= target_read_alloc_1 (ops
, object
, annex
, &buffer
, 1);
1545 if (transferred
< 0)
1548 if (transferred
== 0)
1549 return xstrdup ("");
1551 buffer
[transferred
] = 0;
1552 if (strlen (buffer
) < transferred
)
1553 warning (_("target object %d, annex %s, "
1554 "contained unexpected null characters"),
1555 (int) object
, annex
? annex
: "(none)");
1557 return (char *) buffer
;
1560 /* Memory transfer methods. */
1563 get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
, gdb_byte
*buf
,
1566 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
, buf
, addr
, len
)
1568 memory_error (EIO
, addr
);
1572 get_target_memory_unsigned (struct target_ops
*ops
,
1573 CORE_ADDR addr
, int len
)
1575 gdb_byte buf
[sizeof (ULONGEST
)];
1577 gdb_assert (len
<= sizeof (buf
));
1578 get_target_memory (ops
, addr
, buf
, len
);
1579 return extract_unsigned_integer (buf
, len
);
1583 target_info (char *args
, int from_tty
)
1585 struct target_ops
*t
;
1586 int has_all_mem
= 0;
1588 if (symfile_objfile
!= NULL
)
1589 printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile
->name
);
1591 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
1593 if (!t
->to_has_memory
)
1596 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
1599 printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n"));
1600 printf_unfiltered ("%s:\n", t
->to_longname
);
1601 (t
->to_files_info
) (t
);
1602 has_all_mem
= t
->to_has_all_memory
;
1606 /* This function is called before any new inferior is created, e.g.
1607 by running a program, attaching, or connecting to a target.
1608 It cleans up any state from previous invocations which might
1609 change between runs. This is a subset of what target_preopen
1610 resets (things which might change between targets). */
1613 target_pre_inferior (int from_tty
)
1615 invalidate_target_mem_regions ();
1617 target_clear_description ();
1620 /* This is to be called by the open routine before it does
1624 target_preopen (int from_tty
)
1628 if (target_has_execution
)
1631 || query (_("A program is being debugged already. Kill it? ")))
1634 error (_("Program not killed."));
1637 /* Calling target_kill may remove the target from the stack. But if
1638 it doesn't (which seems like a win for UDI), remove it now. */
1640 if (target_has_execution
)
1643 target_pre_inferior (from_tty
);
1646 /* Detach a target after doing deferred register stores. */
1649 target_detach (char *args
, int from_tty
)
1651 (current_target
.to_detach
) (args
, from_tty
);
1655 target_disconnect (char *args
, int from_tty
)
1657 struct target_ops
*t
;
1659 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1660 if (t
->to_disconnect
!= NULL
)
1663 fprintf_unfiltered (gdb_stdlog
, "target_disconnect (%s, %d)\n",
1665 t
->to_disconnect (t
, args
, from_tty
);
1673 target_async_mask (int mask
)
1675 int saved_async_masked_status
= target_async_mask_value
;
1676 target_async_mask_value
= mask
;
1677 return saved_async_masked_status
;
1680 /* Look through the list of possible targets for a target that can
1684 target_follow_fork (int follow_child
)
1686 struct target_ops
*t
;
1688 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1690 if (t
->to_follow_fork
!= NULL
)
1692 int retval
= t
->to_follow_fork (t
, follow_child
);
1694 fprintf_unfiltered (gdb_stdlog
, "target_follow_fork (%d) = %d\n",
1695 follow_child
, retval
);
1700 /* Some target returned a fork event, but did not know how to follow it. */
1701 internal_error (__FILE__
, __LINE__
,
1702 "could not find a target to follow fork");
1705 /* Look for a target which can describe architectural features, starting
1706 from TARGET. If we find one, return its description. */
1708 const struct target_desc
*
1709 target_read_description (struct target_ops
*target
)
1711 struct target_ops
*t
;
1713 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
1714 if (t
->to_read_description
!= NULL
)
1716 const struct target_desc
*tdesc
;
1718 tdesc
= t
->to_read_description (t
);
1726 /* Look through the list of possible targets for a target that can
1727 execute a run or attach command without any other data. This is
1728 used to locate the default process stratum.
1730 Result is always valid (error() is called for errors). */
1732 static struct target_ops
*
1733 find_default_run_target (char *do_mesg
)
1735 struct target_ops
**t
;
1736 struct target_ops
*runable
= NULL
;
1741 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
1744 if ((*t
)->to_can_run
&& target_can_run (*t
))
1752 error (_("Don't know how to %s. Try \"help target\"."), do_mesg
);
1758 find_default_attach (char *args
, int from_tty
)
1760 struct target_ops
*t
;
1762 t
= find_default_run_target ("attach");
1763 (t
->to_attach
) (args
, from_tty
);
1768 find_default_create_inferior (char *exec_file
, char *allargs
, char **env
,
1771 struct target_ops
*t
;
1773 t
= find_default_run_target ("run");
1774 (t
->to_create_inferior
) (exec_file
, allargs
, env
, from_tty
);
1779 default_region_ok_for_hw_watchpoint (CORE_ADDR addr
, int len
)
1781 return (len
<= TYPE_LENGTH (builtin_type_void_data_ptr
));
1797 return_minus_one (void)
1803 * Resize the to_sections pointer. Also make sure that anyone that
1804 * was holding on to an old value of it gets updated.
1805 * Returns the old size.
1809 target_resize_to_sections (struct target_ops
*target
, int num_added
)
1811 struct target_ops
**t
;
1812 struct section_table
*old_value
;
1815 old_value
= target
->to_sections
;
1817 if (target
->to_sections
)
1819 old_count
= target
->to_sections_end
- target
->to_sections
;
1820 target
->to_sections
= (struct section_table
*)
1821 xrealloc ((char *) target
->to_sections
,
1822 (sizeof (struct section_table
)) * (num_added
+ old_count
));
1827 target
->to_sections
= (struct section_table
*)
1828 xmalloc ((sizeof (struct section_table
)) * num_added
);
1830 target
->to_sections_end
= target
->to_sections
+ (num_added
+ old_count
);
1832 /* Check to see if anyone else was pointing to this structure.
1833 If old_value was null, then no one was. */
1837 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
1840 if ((*t
)->to_sections
== old_value
)
1842 (*t
)->to_sections
= target
->to_sections
;
1843 (*t
)->to_sections_end
= target
->to_sections_end
;
1846 /* There is a flattened view of the target stack in current_target,
1847 so its to_sections pointer might also need updating. */
1848 if (current_target
.to_sections
== old_value
)
1850 current_target
.to_sections
= target
->to_sections
;
1851 current_target
.to_sections_end
= target
->to_sections_end
;
1859 /* Remove all target sections taken from ABFD.
1861 Scan the current target stack for targets whose section tables
1862 refer to sections from BFD, and remove those sections. We use this
1863 when we notice that the inferior has unloaded a shared object, for
1866 remove_target_sections (bfd
*abfd
)
1868 struct target_ops
**t
;
1870 for (t
= target_structs
; t
< target_structs
+ target_struct_size
; t
++)
1872 struct section_table
*src
, *dest
;
1874 dest
= (*t
)->to_sections
;
1875 for (src
= (*t
)->to_sections
; src
< (*t
)->to_sections_end
; src
++)
1876 if (src
->bfd
!= abfd
)
1878 /* Keep this section. */
1879 if (dest
< src
) *dest
= *src
;
1883 /* If we've dropped any sections, resize the section table. */
1885 target_resize_to_sections (*t
, dest
- src
);
1892 /* Find a single runnable target in the stack and return it. If for
1893 some reason there is more than one, return NULL. */
1896 find_run_target (void)
1898 struct target_ops
**t
;
1899 struct target_ops
*runable
= NULL
;
1904 for (t
= target_structs
; t
< target_structs
+ target_struct_size
; ++t
)
1906 if ((*t
)->to_can_run
&& target_can_run (*t
))
1913 return (count
== 1 ? runable
: NULL
);
1916 /* Find a single core_stratum target in the list of targets and return it.
1917 If for some reason there is more than one, return NULL. */
1920 find_core_target (void)
1922 struct target_ops
**t
;
1923 struct target_ops
*runable
= NULL
;
1928 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
1931 if ((*t
)->to_stratum
== core_stratum
)
1938 return (count
== 1 ? runable
: NULL
);
1942 * Find the next target down the stack from the specified target.
1946 find_target_beneath (struct target_ops
*t
)
1952 /* The inferior process has died. Long live the inferior! */
1955 generic_mourn_inferior (void)
1957 extern int show_breakpoint_hit_counts
;
1959 inferior_ptid
= null_ptid
;
1961 breakpoint_init_inferior (inf_exited
);
1962 registers_changed ();
1964 reopen_exec_file ();
1965 reinit_frame_cache ();
1967 /* It is confusing to the user for ignore counts to stick around
1968 from previous runs of the inferior. So clear them. */
1969 /* However, it is more confusing for the ignore counts to disappear when
1970 using hit counts. So don't clear them if we're counting hits. */
1971 if (!show_breakpoint_hit_counts
)
1972 breakpoint_clear_ignore_counts ();
1974 if (deprecated_detach_hook
)
1975 deprecated_detach_hook ();
1978 /* Helper function for child_wait and the derivatives of child_wait.
1979 HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
1980 translation of that in OURSTATUS. */
1982 store_waitstatus (struct target_waitstatus
*ourstatus
, int hoststatus
)
1984 if (WIFEXITED (hoststatus
))
1986 ourstatus
->kind
= TARGET_WAITKIND_EXITED
;
1987 ourstatus
->value
.integer
= WEXITSTATUS (hoststatus
);
1989 else if (!WIFSTOPPED (hoststatus
))
1991 ourstatus
->kind
= TARGET_WAITKIND_SIGNALLED
;
1992 ourstatus
->value
.sig
= target_signal_from_host (WTERMSIG (hoststatus
));
1996 ourstatus
->kind
= TARGET_WAITKIND_STOPPED
;
1997 ourstatus
->value
.sig
= target_signal_from_host (WSTOPSIG (hoststatus
));
2001 /* Returns zero to leave the inferior alone, one to interrupt it. */
2002 int (*target_activity_function
) (void);
2003 int target_activity_fd
;
2005 /* Convert a normal process ID to a string. Returns the string in a
2009 normal_pid_to_str (ptid_t ptid
)
2011 static char buf
[32];
2013 xsnprintf (buf
, sizeof buf
, "process %d", ptid_get_pid (ptid
));
2017 /* Error-catcher for target_find_memory_regions */
2018 static int dummy_find_memory_regions (int (*ignore1
) (), void *ignore2
)
2020 error (_("No target."));
2024 /* Error-catcher for target_make_corefile_notes */
2025 static char * dummy_make_corefile_notes (bfd
*ignore1
, int *ignore2
)
2027 error (_("No target."));
2031 /* Set up the handful of non-empty slots needed by the dummy target
2035 init_dummy_target (void)
2037 dummy_target
.to_shortname
= "None";
2038 dummy_target
.to_longname
= "None";
2039 dummy_target
.to_doc
= "";
2040 dummy_target
.to_attach
= find_default_attach
;
2041 dummy_target
.to_create_inferior
= find_default_create_inferior
;
2042 dummy_target
.to_pid_to_str
= normal_pid_to_str
;
2043 dummy_target
.to_stratum
= dummy_stratum
;
2044 dummy_target
.to_find_memory_regions
= dummy_find_memory_regions
;
2045 dummy_target
.to_make_corefile_notes
= dummy_make_corefile_notes
;
2046 dummy_target
.to_xfer_partial
= default_xfer_partial
;
2047 dummy_target
.to_magic
= OPS_MAGIC
;
2051 debug_to_open (char *args
, int from_tty
)
2053 debug_target
.to_open (args
, from_tty
);
2055 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
2059 debug_to_close (int quitting
)
2061 target_close (&debug_target
, quitting
);
2062 fprintf_unfiltered (gdb_stdlog
, "target_close (%d)\n", quitting
);
2066 target_close (struct target_ops
*targ
, int quitting
)
2068 if (targ
->to_xclose
!= NULL
)
2069 targ
->to_xclose (targ
, quitting
);
2070 else if (targ
->to_close
!= NULL
)
2071 targ
->to_close (quitting
);
2075 debug_to_attach (char *args
, int from_tty
)
2077 debug_target
.to_attach (args
, from_tty
);
2079 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n", args
, from_tty
);
2084 debug_to_post_attach (int pid
)
2086 debug_target
.to_post_attach (pid
);
2088 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
2092 debug_to_detach (char *args
, int from_tty
)
2094 debug_target
.to_detach (args
, from_tty
);
2096 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n", args
, from_tty
);
2100 debug_to_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2102 debug_target
.to_resume (ptid
, step
, siggnal
);
2104 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n", PIDGET (ptid
),
2105 step
? "step" : "continue",
2106 target_signal_to_name (siggnal
));
2110 debug_to_wait (ptid_t ptid
, struct target_waitstatus
*status
)
2114 retval
= debug_target
.to_wait (ptid
, status
);
2116 fprintf_unfiltered (gdb_stdlog
,
2117 "target_wait (%d, status) = %d, ", PIDGET (ptid
),
2119 fprintf_unfiltered (gdb_stdlog
, "status->kind = ");
2120 switch (status
->kind
)
2122 case TARGET_WAITKIND_EXITED
:
2123 fprintf_unfiltered (gdb_stdlog
, "exited, status = %d\n",
2124 status
->value
.integer
);
2126 case TARGET_WAITKIND_STOPPED
:
2127 fprintf_unfiltered (gdb_stdlog
, "stopped, signal = %s\n",
2128 target_signal_to_name (status
->value
.sig
));
2130 case TARGET_WAITKIND_SIGNALLED
:
2131 fprintf_unfiltered (gdb_stdlog
, "signalled, signal = %s\n",
2132 target_signal_to_name (status
->value
.sig
));
2134 case TARGET_WAITKIND_LOADED
:
2135 fprintf_unfiltered (gdb_stdlog
, "loaded\n");
2137 case TARGET_WAITKIND_FORKED
:
2138 fprintf_unfiltered (gdb_stdlog
, "forked\n");
2140 case TARGET_WAITKIND_VFORKED
:
2141 fprintf_unfiltered (gdb_stdlog
, "vforked\n");
2143 case TARGET_WAITKIND_EXECD
:
2144 fprintf_unfiltered (gdb_stdlog
, "execd\n");
2146 case TARGET_WAITKIND_SPURIOUS
:
2147 fprintf_unfiltered (gdb_stdlog
, "spurious\n");
2150 fprintf_unfiltered (gdb_stdlog
, "unknown???\n");
2158 debug_print_register (const char * func
,
2159 struct regcache
*regcache
, int regno
)
2161 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
2162 if (regno
>= 0 && regno
< gdbarch_num_regs (current_gdbarch
)
2163 + gdbarch_num_pseudo_regs (current_gdbarch
)
2164 && gdbarch_register_name (current_gdbarch
, regno
) != NULL
2165 && gdbarch_register_name (current_gdbarch
, regno
)[0] != '\0')
2166 fprintf_unfiltered (gdb_stdlog
, "(%s)", gdbarch_register_name
2167 (current_gdbarch
, regno
));
2169 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
2172 int i
, size
= register_size (current_gdbarch
, regno
);
2173 unsigned char buf
[MAX_REGISTER_SIZE
];
2174 regcache_cooked_read (regcache
, regno
, buf
);
2175 fprintf_unfiltered (gdb_stdlog
, " = ");
2176 for (i
= 0; i
< size
; i
++)
2178 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
2180 if (size
<= sizeof (LONGEST
))
2182 ULONGEST val
= extract_unsigned_integer (buf
, size
);
2183 fprintf_unfiltered (gdb_stdlog
, " 0x%s %s",
2184 paddr_nz (val
), paddr_d (val
));
2187 fprintf_unfiltered (gdb_stdlog
, "\n");
2191 debug_to_fetch_registers (struct regcache
*regcache
, int regno
)
2193 debug_target
.to_fetch_registers (regcache
, regno
);
2194 debug_print_register ("target_fetch_registers", regcache
, regno
);
2198 debug_to_store_registers (struct regcache
*regcache
, int regno
)
2200 debug_target
.to_store_registers (regcache
, regno
);
2201 debug_print_register ("target_store_registers", regcache
, regno
);
2202 fprintf_unfiltered (gdb_stdlog
, "\n");
2206 debug_to_prepare_to_store (struct regcache
*regcache
)
2208 debug_target
.to_prepare_to_store (regcache
);
2210 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
2214 deprecated_debug_xfer_memory (CORE_ADDR memaddr
, bfd_byte
*myaddr
, int len
,
2215 int write
, struct mem_attrib
*attrib
,
2216 struct target_ops
*target
)
2220 retval
= debug_target
.deprecated_xfer_memory (memaddr
, myaddr
, len
, write
,
2223 fprintf_unfiltered (gdb_stdlog
,
2224 "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d",
2225 (unsigned int) memaddr
, /* possable truncate long long */
2226 len
, write
? "write" : "read", retval
);
2232 fputs_unfiltered (", bytes =", gdb_stdlog
);
2233 for (i
= 0; i
< retval
; i
++)
2235 if ((((long) &(myaddr
[i
])) & 0xf) == 0)
2237 if (targetdebug
< 2 && i
> 0)
2239 fprintf_unfiltered (gdb_stdlog
, " ...");
2242 fprintf_unfiltered (gdb_stdlog
, "\n");
2245 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
2249 fputc_unfiltered ('\n', gdb_stdlog
);
2255 debug_to_files_info (struct target_ops
*target
)
2257 debug_target
.to_files_info (target
);
2259 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
2263 debug_to_insert_breakpoint (struct bp_target_info
*bp_tgt
)
2267 retval
= debug_target
.to_insert_breakpoint (bp_tgt
);
2269 fprintf_unfiltered (gdb_stdlog
,
2270 "target_insert_breakpoint (0x%lx, xxx) = %ld\n",
2271 (unsigned long) bp_tgt
->placed_address
,
2272 (unsigned long) retval
);
2277 debug_to_remove_breakpoint (struct bp_target_info
*bp_tgt
)
2281 retval
= debug_target
.to_remove_breakpoint (bp_tgt
);
2283 fprintf_unfiltered (gdb_stdlog
,
2284 "target_remove_breakpoint (0x%lx, xxx) = %ld\n",
2285 (unsigned long) bp_tgt
->placed_address
,
2286 (unsigned long) retval
);
2291 debug_to_can_use_hw_breakpoint (int type
, int cnt
, int from_tty
)
2295 retval
= debug_target
.to_can_use_hw_breakpoint (type
, cnt
, from_tty
);
2297 fprintf_unfiltered (gdb_stdlog
,
2298 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
2299 (unsigned long) type
,
2300 (unsigned long) cnt
,
2301 (unsigned long) from_tty
,
2302 (unsigned long) retval
);
2307 debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr
, int len
)
2311 retval
= debug_target
.to_region_ok_for_hw_watchpoint (addr
, len
);
2313 fprintf_unfiltered (gdb_stdlog
,
2314 "TARGET_REGION_OK_FOR_HW_WATCHPOINT (%ld, %ld) = 0x%lx\n",
2315 (unsigned long) addr
,
2316 (unsigned long) len
,
2317 (unsigned long) retval
);
2322 debug_to_stopped_by_watchpoint (void)
2326 retval
= debug_target
.to_stopped_by_watchpoint ();
2328 fprintf_unfiltered (gdb_stdlog
,
2329 "STOPPED_BY_WATCHPOINT () = %ld\n",
2330 (unsigned long) retval
);
2335 debug_to_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr
)
2339 retval
= debug_target
.to_stopped_data_address (target
, addr
);
2341 fprintf_unfiltered (gdb_stdlog
,
2342 "target_stopped_data_address ([0x%lx]) = %ld\n",
2343 (unsigned long)*addr
,
2344 (unsigned long)retval
);
2349 debug_to_insert_hw_breakpoint (struct bp_target_info
*bp_tgt
)
2353 retval
= debug_target
.to_insert_hw_breakpoint (bp_tgt
);
2355 fprintf_unfiltered (gdb_stdlog
,
2356 "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n",
2357 (unsigned long) bp_tgt
->placed_address
,
2358 (unsigned long) retval
);
2363 debug_to_remove_hw_breakpoint (struct bp_target_info
*bp_tgt
)
2367 retval
= debug_target
.to_remove_hw_breakpoint (bp_tgt
);
2369 fprintf_unfiltered (gdb_stdlog
,
2370 "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n",
2371 (unsigned long) bp_tgt
->placed_address
,
2372 (unsigned long) retval
);
2377 debug_to_insert_watchpoint (CORE_ADDR addr
, int len
, int type
)
2381 retval
= debug_target
.to_insert_watchpoint (addr
, len
, type
);
2383 fprintf_unfiltered (gdb_stdlog
,
2384 "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n",
2385 (unsigned long) addr
, len
, type
, (unsigned long) retval
);
2390 debug_to_remove_watchpoint (CORE_ADDR addr
, int len
, int type
)
2394 retval
= debug_target
.to_remove_watchpoint (addr
, len
, type
);
2396 fprintf_unfiltered (gdb_stdlog
,
2397 "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n",
2398 (unsigned long) addr
, len
, type
, (unsigned long) retval
);
2403 debug_to_terminal_init (void)
2405 debug_target
.to_terminal_init ();
2407 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
2411 debug_to_terminal_inferior (void)
2413 debug_target
.to_terminal_inferior ();
2415 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
2419 debug_to_terminal_ours_for_output (void)
2421 debug_target
.to_terminal_ours_for_output ();
2423 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
2427 debug_to_terminal_ours (void)
2429 debug_target
.to_terminal_ours ();
2431 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
2435 debug_to_terminal_save_ours (void)
2437 debug_target
.to_terminal_save_ours ();
2439 fprintf_unfiltered (gdb_stdlog
, "target_terminal_save_ours ()\n");
2443 debug_to_terminal_info (char *arg
, int from_tty
)
2445 debug_target
.to_terminal_info (arg
, from_tty
);
2447 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
2452 debug_to_kill (void)
2454 debug_target
.to_kill ();
2456 fprintf_unfiltered (gdb_stdlog
, "target_kill ()\n");
2460 debug_to_load (char *args
, int from_tty
)
2462 debug_target
.to_load (args
, from_tty
);
2464 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
2468 debug_to_lookup_symbol (char *name
, CORE_ADDR
*addrp
)
2472 retval
= debug_target
.to_lookup_symbol (name
, addrp
);
2474 fprintf_unfiltered (gdb_stdlog
, "target_lookup_symbol (%s, xxx)\n", name
);
2480 debug_to_create_inferior (char *exec_file
, char *args
, char **env
,
2483 debug_target
.to_create_inferior (exec_file
, args
, env
, from_tty
);
2485 fprintf_unfiltered (gdb_stdlog
, "target_create_inferior (%s, %s, xxx, %d)\n",
2486 exec_file
, args
, from_tty
);
2490 debug_to_post_startup_inferior (ptid_t ptid
)
2492 debug_target
.to_post_startup_inferior (ptid
);
2494 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
2499 debug_to_acknowledge_created_inferior (int pid
)
2501 debug_target
.to_acknowledge_created_inferior (pid
);
2503 fprintf_unfiltered (gdb_stdlog
, "target_acknowledge_created_inferior (%d)\n",
2508 debug_to_insert_fork_catchpoint (int pid
)
2510 debug_target
.to_insert_fork_catchpoint (pid
);
2512 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d)\n",
2517 debug_to_remove_fork_catchpoint (int pid
)
2521 retval
= debug_target
.to_remove_fork_catchpoint (pid
);
2523 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
2530 debug_to_insert_vfork_catchpoint (int pid
)
2532 debug_target
.to_insert_vfork_catchpoint (pid
);
2534 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d)\n",
2539 debug_to_remove_vfork_catchpoint (int pid
)
2543 retval
= debug_target
.to_remove_vfork_catchpoint (pid
);
2545 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
2552 debug_to_insert_exec_catchpoint (int pid
)
2554 debug_target
.to_insert_exec_catchpoint (pid
);
2556 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d)\n",
2561 debug_to_remove_exec_catchpoint (int pid
)
2565 retval
= debug_target
.to_remove_exec_catchpoint (pid
);
2567 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
2574 debug_to_reported_exec_events_per_exec_call (void)
2576 int reported_exec_events
;
2578 reported_exec_events
= debug_target
.to_reported_exec_events_per_exec_call ();
2580 fprintf_unfiltered (gdb_stdlog
,
2581 "target_reported_exec_events_per_exec_call () = %d\n",
2582 reported_exec_events
);
2584 return reported_exec_events
;
2588 debug_to_has_exited (int pid
, int wait_status
, int *exit_status
)
2592 has_exited
= debug_target
.to_has_exited (pid
, wait_status
, exit_status
);
2594 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
2595 pid
, wait_status
, *exit_status
, has_exited
);
2601 debug_to_mourn_inferior (void)
2603 debug_target
.to_mourn_inferior ();
2605 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2609 debug_to_can_run (void)
2613 retval
= debug_target
.to_can_run ();
2615 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
2621 debug_to_notice_signals (ptid_t ptid
)
2623 debug_target
.to_notice_signals (ptid
);
2625 fprintf_unfiltered (gdb_stdlog
, "target_notice_signals (%d)\n",
2630 debug_to_thread_alive (ptid_t ptid
)
2634 retval
= debug_target
.to_thread_alive (ptid
);
2636 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
2637 PIDGET (ptid
), retval
);
2643 debug_to_find_new_threads (void)
2645 debug_target
.to_find_new_threads ();
2647 fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog
);
2651 debug_to_stop (void)
2653 debug_target
.to_stop ();
2655 fprintf_unfiltered (gdb_stdlog
, "target_stop ()\n");
2659 debug_to_rcmd (char *command
,
2660 struct ui_file
*outbuf
)
2662 debug_target
.to_rcmd (command
, outbuf
);
2663 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
2666 static struct symtab_and_line
*
2667 debug_to_enable_exception_callback (enum exception_event_kind kind
, int enable
)
2669 struct symtab_and_line
*result
;
2670 result
= debug_target
.to_enable_exception_callback (kind
, enable
);
2671 fprintf_unfiltered (gdb_stdlog
,
2672 "target get_exception_callback_sal (%d, %d)\n",
2677 static struct exception_event_record
*
2678 debug_to_get_current_exception_event (void)
2680 struct exception_event_record
*result
;
2681 result
= debug_target
.to_get_current_exception_event ();
2682 fprintf_unfiltered (gdb_stdlog
, "target get_current_exception_event ()\n");
2687 debug_to_pid_to_exec_file (int pid
)
2691 exec_file
= debug_target
.to_pid_to_exec_file (pid
);
2693 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
2700 setup_target_debug (void)
2702 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
2704 current_target
.to_open
= debug_to_open
;
2705 current_target
.to_close
= debug_to_close
;
2706 current_target
.to_attach
= debug_to_attach
;
2707 current_target
.to_post_attach
= debug_to_post_attach
;
2708 current_target
.to_detach
= debug_to_detach
;
2709 current_target
.to_resume
= debug_to_resume
;
2710 current_target
.to_wait
= debug_to_wait
;
2711 current_target
.to_fetch_registers
= debug_to_fetch_registers
;
2712 current_target
.to_store_registers
= debug_to_store_registers
;
2713 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
2714 current_target
.deprecated_xfer_memory
= deprecated_debug_xfer_memory
;
2715 current_target
.to_files_info
= debug_to_files_info
;
2716 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
2717 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
2718 current_target
.to_can_use_hw_breakpoint
= debug_to_can_use_hw_breakpoint
;
2719 current_target
.to_insert_hw_breakpoint
= debug_to_insert_hw_breakpoint
;
2720 current_target
.to_remove_hw_breakpoint
= debug_to_remove_hw_breakpoint
;
2721 current_target
.to_insert_watchpoint
= debug_to_insert_watchpoint
;
2722 current_target
.to_remove_watchpoint
= debug_to_remove_watchpoint
;
2723 current_target
.to_stopped_by_watchpoint
= debug_to_stopped_by_watchpoint
;
2724 current_target
.to_stopped_data_address
= debug_to_stopped_data_address
;
2725 current_target
.to_region_ok_for_hw_watchpoint
= debug_to_region_ok_for_hw_watchpoint
;
2726 current_target
.to_terminal_init
= debug_to_terminal_init
;
2727 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
2728 current_target
.to_terminal_ours_for_output
= debug_to_terminal_ours_for_output
;
2729 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
2730 current_target
.to_terminal_save_ours
= debug_to_terminal_save_ours
;
2731 current_target
.to_terminal_info
= debug_to_terminal_info
;
2732 current_target
.to_kill
= debug_to_kill
;
2733 current_target
.to_load
= debug_to_load
;
2734 current_target
.to_lookup_symbol
= debug_to_lookup_symbol
;
2735 current_target
.to_create_inferior
= debug_to_create_inferior
;
2736 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
2737 current_target
.to_acknowledge_created_inferior
= debug_to_acknowledge_created_inferior
;
2738 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
2739 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
2740 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
2741 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
2742 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
2743 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
2744 current_target
.to_reported_exec_events_per_exec_call
= debug_to_reported_exec_events_per_exec_call
;
2745 current_target
.to_has_exited
= debug_to_has_exited
;
2746 current_target
.to_mourn_inferior
= debug_to_mourn_inferior
;
2747 current_target
.to_can_run
= debug_to_can_run
;
2748 current_target
.to_notice_signals
= debug_to_notice_signals
;
2749 current_target
.to_thread_alive
= debug_to_thread_alive
;
2750 current_target
.to_find_new_threads
= debug_to_find_new_threads
;
2751 current_target
.to_stop
= debug_to_stop
;
2752 current_target
.to_rcmd
= debug_to_rcmd
;
2753 current_target
.to_enable_exception_callback
= debug_to_enable_exception_callback
;
2754 current_target
.to_get_current_exception_event
= debug_to_get_current_exception_event
;
2755 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
2759 static char targ_desc
[] =
2760 "Names of targets and files being debugged.\n\
2761 Shows the entire stack of targets currently in use (including the exec-file,\n\
2762 core-file, and process, if any), as well as the symbol file name.";
2765 do_monitor_command (char *cmd
,
2768 if ((current_target
.to_rcmd
2769 == (void (*) (char *, struct ui_file
*)) tcomplain
)
2770 || (current_target
.to_rcmd
== debug_to_rcmd
2771 && (debug_target
.to_rcmd
2772 == (void (*) (char *, struct ui_file
*)) tcomplain
)))
2773 error (_("\"monitor\" command not supported by this target."));
2774 target_rcmd (cmd
, gdb_stdtarg
);
2777 /* Print the name of each layers of our target stack. */
2780 maintenance_print_target_stack (char *cmd
, int from_tty
)
2782 struct target_ops
*t
;
2784 printf_filtered (_("The current target stack is:\n"));
2786 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2788 printf_filtered (" - %s (%s)\n", t
->to_shortname
, t
->to_longname
);
2793 initialize_targets (void)
2795 init_dummy_target ();
2796 push_target (&dummy_target
);
2798 add_info ("target", target_info
, targ_desc
);
2799 add_info ("files", target_info
, targ_desc
);
2801 add_setshow_zinteger_cmd ("target", class_maintenance
, &targetdebug
, _("\
2802 Set target debugging."), _("\
2803 Show target debugging."), _("\
2804 When non-zero, target debugging is enabled. Higher numbers are more\n\
2805 verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
2809 &setdebuglist
, &showdebuglist
);
2811 add_setshow_boolean_cmd ("trust-readonly-sections", class_support
,
2812 &trust_readonly
, _("\
2813 Set mode for reading from readonly sections."), _("\
2814 Show mode for reading from readonly sections."), _("\
2815 When this mode is on, memory reads from readonly sections (such as .text)\n\
2816 will be read from the object file instead of from the target. This will\n\
2817 result in significant performance improvement for remote targets."),
2819 show_trust_readonly
,
2820 &setlist
, &showlist
);
2822 add_com ("monitor", class_obscure
, do_monitor_command
,
2823 _("Send a command to the remote monitor (remote targets only)."));
2825 add_cmd ("target-stack", class_maintenance
, maintenance_print_target_stack
,
2826 _("Print the name of each layer of the internal target stack."),
2827 &maintenanceprintlist
);
2829 target_dcache
= dcache_init ();