1 /* Select target systems and architectures at runtime for GDB.
3 Copyright (C) 1990-2014 Free Software Foundation, Inc.
5 Contributed by Cygnus Support.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "target-dcache.h"
36 #include "gdb_assert.h"
38 #include "exceptions.h"
39 #include "target-descriptions.h"
40 #include "gdbthread.h"
43 #include "inline-frame.h"
44 #include "tracepoint.h"
45 #include "gdb/fileio.h"
48 static void target_info (char *, int);
50 static void default_terminal_info (struct target_ops
*, const char *, int);
52 static int default_watchpoint_addr_within_range (struct target_ops
*,
53 CORE_ADDR
, CORE_ADDR
, int);
55 static int default_region_ok_for_hw_watchpoint (struct target_ops
*,
58 static void tcomplain (void) ATTRIBUTE_NORETURN
;
60 static int nomemory (CORE_ADDR
, char *, int, int, struct target_ops
*);
62 static int return_zero (void);
64 static int return_one (void);
66 static int return_minus_one (void);
68 static void *return_null (void);
70 void target_ignore (void);
72 static void target_command (char *, int);
74 static struct target_ops
*find_default_run_target (char *);
76 static target_xfer_partial_ftype default_xfer_partial
;
78 static struct gdbarch
*default_thread_architecture (struct target_ops
*ops
,
81 static int find_default_can_async_p (struct target_ops
*ignore
);
83 static int find_default_is_async_p (struct target_ops
*ignore
);
85 #include "target-delegates.c"
87 static void init_dummy_target (void);
89 static struct target_ops debug_target
;
91 static void debug_to_open (char *, int);
93 static void debug_to_prepare_to_store (struct target_ops
*self
,
96 static void debug_to_files_info (struct target_ops
*);
98 static int debug_to_insert_breakpoint (struct target_ops
*, struct gdbarch
*,
99 struct bp_target_info
*);
101 static int debug_to_remove_breakpoint (struct target_ops
*, struct gdbarch
*,
102 struct bp_target_info
*);
104 static int debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
107 static int debug_to_insert_hw_breakpoint (struct target_ops
*self
,
109 struct bp_target_info
*);
111 static int debug_to_remove_hw_breakpoint (struct target_ops
*self
,
113 struct bp_target_info
*);
115 static int debug_to_insert_watchpoint (struct target_ops
*self
,
117 struct expression
*);
119 static int debug_to_remove_watchpoint (struct target_ops
*self
,
121 struct expression
*);
123 static int debug_to_stopped_data_address (struct target_ops
*, CORE_ADDR
*);
125 static int debug_to_watchpoint_addr_within_range (struct target_ops
*,
126 CORE_ADDR
, CORE_ADDR
, int);
128 static int debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
131 static int debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
133 struct expression
*);
135 static void debug_to_terminal_init (struct target_ops
*self
);
137 static void debug_to_terminal_inferior (struct target_ops
*self
);
139 static void debug_to_terminal_ours_for_output (struct target_ops
*self
);
141 static void debug_to_terminal_save_ours (struct target_ops
*self
);
143 static void debug_to_terminal_ours (struct target_ops
*self
);
145 static void debug_to_load (struct target_ops
*self
, char *, int);
147 static int debug_to_can_run (struct target_ops
*self
);
149 static void debug_to_stop (struct target_ops
*self
, ptid_t
);
151 /* Pointer to array of target architecture structures; the size of the
152 array; the current index into the array; the allocated size of the
154 struct target_ops
**target_structs
;
155 unsigned target_struct_size
;
156 unsigned target_struct_allocsize
;
157 #define DEFAULT_ALLOCSIZE 10
159 /* The initial current target, so that there is always a semi-valid
162 static struct target_ops dummy_target
;
164 /* Top of target stack. */
166 static struct target_ops
*target_stack
;
168 /* The target structure we are currently using to talk to a process
169 or file or whatever "inferior" we have. */
171 struct target_ops current_target
;
173 /* Command list for target. */
175 static struct cmd_list_element
*targetlist
= NULL
;
177 /* Nonzero if we should trust readonly sections from the
178 executable when reading memory. */
180 static int trust_readonly
= 0;
182 /* Nonzero if we should show true memory content including
183 memory breakpoint inserted by gdb. */
185 static int show_memory_breakpoints
= 0;
187 /* These globals control whether GDB attempts to perform these
188 operations; they are useful for targets that need to prevent
189 inadvertant disruption, such as in non-stop mode. */
191 int may_write_registers
= 1;
193 int may_write_memory
= 1;
195 int may_insert_breakpoints
= 1;
197 int may_insert_tracepoints
= 1;
199 int may_insert_fast_tracepoints
= 1;
203 /* Non-zero if we want to see trace of target level stuff. */
205 static unsigned int targetdebug
= 0;
207 show_targetdebug (struct ui_file
*file
, int from_tty
,
208 struct cmd_list_element
*c
, const char *value
)
210 fprintf_filtered (file
, _("Target debugging is %s.\n"), value
);
213 static void setup_target_debug (void);
215 /* The user just typed 'target' without the name of a target. */
218 target_command (char *arg
, int from_tty
)
220 fputs_filtered ("Argument required (target name). Try `help target'\n",
224 /* Default target_has_* methods for process_stratum targets. */
227 default_child_has_all_memory (struct target_ops
*ops
)
229 /* If no inferior selected, then we can't read memory here. */
230 if (ptid_equal (inferior_ptid
, null_ptid
))
237 default_child_has_memory (struct target_ops
*ops
)
239 /* If no inferior selected, then we can't read memory here. */
240 if (ptid_equal (inferior_ptid
, null_ptid
))
247 default_child_has_stack (struct target_ops
*ops
)
249 /* If no inferior selected, there's no stack. */
250 if (ptid_equal (inferior_ptid
, null_ptid
))
257 default_child_has_registers (struct target_ops
*ops
)
259 /* Can't read registers from no inferior. */
260 if (ptid_equal (inferior_ptid
, null_ptid
))
267 default_child_has_execution (struct target_ops
*ops
, ptid_t the_ptid
)
269 /* If there's no thread selected, then we can't make it run through
271 if (ptid_equal (the_ptid
, null_ptid
))
279 target_has_all_memory_1 (void)
281 struct target_ops
*t
;
283 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
284 if (t
->to_has_all_memory (t
))
291 target_has_memory_1 (void)
293 struct target_ops
*t
;
295 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
296 if (t
->to_has_memory (t
))
303 target_has_stack_1 (void)
305 struct target_ops
*t
;
307 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
308 if (t
->to_has_stack (t
))
315 target_has_registers_1 (void)
317 struct target_ops
*t
;
319 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
320 if (t
->to_has_registers (t
))
327 target_has_execution_1 (ptid_t the_ptid
)
329 struct target_ops
*t
;
331 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
332 if (t
->to_has_execution (t
, the_ptid
))
339 target_has_execution_current (void)
341 return target_has_execution_1 (inferior_ptid
);
344 /* Complete initialization of T. This ensures that various fields in
345 T are set, if needed by the target implementation. */
348 complete_target_initialization (struct target_ops
*t
)
350 /* Provide default values for all "must have" methods. */
351 if (t
->to_xfer_partial
== NULL
)
352 t
->to_xfer_partial
= default_xfer_partial
;
354 if (t
->to_has_all_memory
== NULL
)
355 t
->to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
357 if (t
->to_has_memory
== NULL
)
358 t
->to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
360 if (t
->to_has_stack
== NULL
)
361 t
->to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
363 if (t
->to_has_registers
== NULL
)
364 t
->to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
366 if (t
->to_has_execution
== NULL
)
367 t
->to_has_execution
= (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
369 install_delegators (t
);
372 /* Add possible target architecture T to the list and add a new
373 command 'target T->to_shortname'. Set COMPLETER as the command's
374 completer if not NULL. */
377 add_target_with_completer (struct target_ops
*t
,
378 completer_ftype
*completer
)
380 struct cmd_list_element
*c
;
382 complete_target_initialization (t
);
386 target_struct_allocsize
= DEFAULT_ALLOCSIZE
;
387 target_structs
= (struct target_ops
**) xmalloc
388 (target_struct_allocsize
* sizeof (*target_structs
));
390 if (target_struct_size
>= target_struct_allocsize
)
392 target_struct_allocsize
*= 2;
393 target_structs
= (struct target_ops
**)
394 xrealloc ((char *) target_structs
,
395 target_struct_allocsize
* sizeof (*target_structs
));
397 target_structs
[target_struct_size
++] = t
;
399 if (targetlist
== NULL
)
400 add_prefix_cmd ("target", class_run
, target_command
, _("\
401 Connect to a target machine or process.\n\
402 The first argument is the type or protocol of the target machine.\n\
403 Remaining arguments are interpreted by the target protocol. For more\n\
404 information on the arguments for a particular protocol, type\n\
405 `help target ' followed by the protocol name."),
406 &targetlist
, "target ", 0, &cmdlist
);
407 c
= add_cmd (t
->to_shortname
, no_class
, t
->to_open
, t
->to_doc
,
409 if (completer
!= NULL
)
410 set_cmd_completer (c
, completer
);
413 /* Add a possible target architecture to the list. */
416 add_target (struct target_ops
*t
)
418 add_target_with_completer (t
, NULL
);
424 add_deprecated_target_alias (struct target_ops
*t
, char *alias
)
426 struct cmd_list_element
*c
;
429 /* If we use add_alias_cmd, here, we do not get the deprecated warning,
431 c
= add_cmd (alias
, no_class
, t
->to_open
, t
->to_doc
, &targetlist
);
432 alt
= xstrprintf ("target %s", t
->to_shortname
);
433 deprecate_cmd (c
, alt
);
446 struct target_ops
*t
;
448 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
449 if (t
->to_kill
!= NULL
)
452 fprintf_unfiltered (gdb_stdlog
, "target_kill ()\n");
462 target_load (char *arg
, int from_tty
)
464 target_dcache_invalidate ();
465 (*current_target
.to_load
) (¤t_target
, arg
, from_tty
);
469 target_create_inferior (char *exec_file
, char *args
,
470 char **env
, int from_tty
)
472 struct target_ops
*t
;
474 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
476 if (t
->to_create_inferior
!= NULL
)
478 t
->to_create_inferior (t
, exec_file
, args
, env
, from_tty
);
480 fprintf_unfiltered (gdb_stdlog
,
481 "target_create_inferior (%s, %s, xxx, %d)\n",
482 exec_file
, args
, from_tty
);
487 internal_error (__FILE__
, __LINE__
,
488 _("could not find a target to create inferior"));
492 target_terminal_inferior (void)
494 /* A background resume (``run&'') should leave GDB in control of the
495 terminal. Use target_can_async_p, not target_is_async_p, since at
496 this point the target is not async yet. However, if sync_execution
497 is not set, we know it will become async prior to resume. */
498 if (target_can_async_p () && !sync_execution
)
501 /* If GDB is resuming the inferior in the foreground, install
502 inferior's terminal modes. */
503 (*current_target
.to_terminal_inferior
) (¤t_target
);
507 nomemory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
,
508 struct target_ops
*t
)
510 errno
= EIO
; /* Can't read/write this location. */
511 return 0; /* No bytes handled. */
517 error (_("You can't do that when your target is `%s'"),
518 current_target
.to_shortname
);
524 error (_("You can't do that without a process to debug."));
528 default_terminal_info (struct target_ops
*self
, const char *args
, int from_tty
)
530 printf_unfiltered (_("No saved terminal information.\n"));
533 /* A default implementation for the to_get_ada_task_ptid target method.
535 This function builds the PTID by using both LWP and TID as part of
536 the PTID lwp and tid elements. The pid used is the pid of the
540 default_get_ada_task_ptid (struct target_ops
*self
, long lwp
, long tid
)
542 return ptid_build (ptid_get_pid (inferior_ptid
), lwp
, tid
);
545 static enum exec_direction_kind
546 default_execution_direction (struct target_ops
*self
)
548 if (!target_can_execute_reverse
)
550 else if (!target_can_async_p ())
553 gdb_assert_not_reached ("\
554 to_execution_direction must be implemented for reverse async");
557 /* Go through the target stack from top to bottom, copying over zero
558 entries in current_target, then filling in still empty entries. In
559 effect, we are doing class inheritance through the pushed target
562 NOTE: cagney/2003-10-17: The problem with this inheritance, as it
563 is currently implemented, is that it discards any knowledge of
564 which target an inherited method originally belonged to.
565 Consequently, new new target methods should instead explicitly and
566 locally search the target stack for the target that can handle the
570 update_current_target (void)
572 struct target_ops
*t
;
574 /* First, reset current's contents. */
575 memset (¤t_target
, 0, sizeof (current_target
));
577 /* Install the delegators. */
578 install_delegators (¤t_target
);
580 #define INHERIT(FIELD, TARGET) \
581 if (!current_target.FIELD) \
582 current_target.FIELD = (TARGET)->FIELD
584 for (t
= target_stack
; t
; t
= t
->beneath
)
586 INHERIT (to_shortname
, t
);
587 INHERIT (to_longname
, t
);
589 /* Do not inherit to_open. */
590 /* Do not inherit to_close. */
591 /* Do not inherit to_attach. */
592 INHERIT (to_post_attach
, t
);
593 INHERIT (to_attach_no_wait
, t
);
594 /* Do not inherit to_detach. */
595 /* Do not inherit to_disconnect. */
596 /* Do not inherit to_resume. */
597 /* Do not inherit to_wait. */
598 /* Do not inherit to_fetch_registers. */
599 /* Do not inherit to_store_registers. */
600 INHERIT (to_prepare_to_store
, t
);
601 INHERIT (deprecated_xfer_memory
, t
);
602 INHERIT (to_files_info
, t
);
603 /* Do not inherit to_insert_breakpoint. */
604 /* Do not inherit to_remove_breakpoint. */
605 INHERIT (to_can_use_hw_breakpoint
, t
);
606 INHERIT (to_insert_hw_breakpoint
, t
);
607 INHERIT (to_remove_hw_breakpoint
, t
);
608 /* Do not inherit to_ranged_break_num_registers. */
609 INHERIT (to_insert_watchpoint
, t
);
610 INHERIT (to_remove_watchpoint
, t
);
611 /* Do not inherit to_insert_mask_watchpoint. */
612 /* Do not inherit to_remove_mask_watchpoint. */
613 /* Do not inherit to_stopped_data_address. */
614 INHERIT (to_have_steppable_watchpoint
, t
);
615 INHERIT (to_have_continuable_watchpoint
, t
);
616 /* Do not inherit to_stopped_by_watchpoint. */
617 INHERIT (to_watchpoint_addr_within_range
, t
);
618 INHERIT (to_region_ok_for_hw_watchpoint
, t
);
619 INHERIT (to_can_accel_watchpoint_condition
, t
);
620 /* Do not inherit to_masked_watch_num_registers. */
621 INHERIT (to_terminal_init
, t
);
622 INHERIT (to_terminal_inferior
, t
);
623 INHERIT (to_terminal_ours_for_output
, t
);
624 INHERIT (to_terminal_ours
, t
);
625 INHERIT (to_terminal_save_ours
, t
);
626 INHERIT (to_terminal_info
, t
);
627 /* Do not inherit to_kill. */
628 INHERIT (to_load
, t
);
629 /* Do no inherit to_create_inferior. */
630 INHERIT (to_post_startup_inferior
, t
);
631 INHERIT (to_insert_fork_catchpoint
, t
);
632 INHERIT (to_remove_fork_catchpoint
, t
);
633 INHERIT (to_insert_vfork_catchpoint
, t
);
634 INHERIT (to_remove_vfork_catchpoint
, t
);
635 /* Do not inherit to_follow_fork. */
636 INHERIT (to_insert_exec_catchpoint
, t
);
637 INHERIT (to_remove_exec_catchpoint
, t
);
638 INHERIT (to_set_syscall_catchpoint
, t
);
639 INHERIT (to_has_exited
, t
);
640 /* Do not inherit to_mourn_inferior. */
641 INHERIT (to_can_run
, t
);
642 /* Do not inherit to_pass_signals. */
643 /* Do not inherit to_program_signals. */
644 /* Do not inherit to_thread_alive. */
645 /* Do not inherit to_find_new_threads. */
646 /* Do not inherit to_pid_to_str. */
647 INHERIT (to_extra_thread_info
, t
);
648 INHERIT (to_thread_name
, t
);
649 INHERIT (to_stop
, t
);
650 /* Do not inherit to_xfer_partial. */
651 INHERIT (to_rcmd
, t
);
652 INHERIT (to_pid_to_exec_file
, t
);
653 INHERIT (to_log_command
, t
);
654 INHERIT (to_stratum
, t
);
655 /* Do not inherit to_has_all_memory. */
656 /* Do not inherit to_has_memory. */
657 /* Do not inherit to_has_stack. */
658 /* Do not inherit to_has_registers. */
659 /* Do not inherit to_has_execution. */
660 INHERIT (to_has_thread_control
, t
);
661 /* Do not inherit to_can_async_p. */
662 /* Do not inherit to_is_async_p. */
663 /* Do not inherit to_async. */
664 INHERIT (to_find_memory_regions
, t
);
665 INHERIT (to_make_corefile_notes
, t
);
666 INHERIT (to_get_bookmark
, t
);
667 INHERIT (to_goto_bookmark
, t
);
668 /* Do not inherit to_get_thread_local_address. */
669 INHERIT (to_can_execute_reverse
, t
);
670 INHERIT (to_execution_direction
, t
);
671 INHERIT (to_thread_architecture
, t
);
672 /* Do not inherit to_read_description. */
673 INHERIT (to_get_ada_task_ptid
, t
);
674 /* Do not inherit to_search_memory. */
675 INHERIT (to_supports_multi_process
, t
);
676 INHERIT (to_supports_enable_disable_tracepoint
, t
);
677 INHERIT (to_supports_string_tracing
, t
);
678 INHERIT (to_trace_init
, t
);
679 INHERIT (to_download_tracepoint
, t
);
680 INHERIT (to_can_download_tracepoint
, t
);
681 INHERIT (to_download_trace_state_variable
, t
);
682 INHERIT (to_enable_tracepoint
, t
);
683 INHERIT (to_disable_tracepoint
, t
);
684 INHERIT (to_trace_set_readonly_regions
, t
);
685 INHERIT (to_trace_start
, t
);
686 INHERIT (to_get_trace_status
, t
);
687 INHERIT (to_get_tracepoint_status
, t
);
688 INHERIT (to_trace_stop
, t
);
689 INHERIT (to_trace_find
, t
);
690 INHERIT (to_get_trace_state_variable_value
, t
);
691 INHERIT (to_save_trace_data
, t
);
692 INHERIT (to_upload_tracepoints
, t
);
693 INHERIT (to_upload_trace_state_variables
, t
);
694 INHERIT (to_get_raw_trace_data
, t
);
695 INHERIT (to_get_min_fast_tracepoint_insn_len
, t
);
696 INHERIT (to_set_disconnected_tracing
, t
);
697 INHERIT (to_set_circular_trace_buffer
, t
);
698 INHERIT (to_set_trace_buffer_size
, t
);
699 INHERIT (to_set_trace_notes
, t
);
700 INHERIT (to_get_tib_address
, t
);
701 INHERIT (to_set_permissions
, t
);
702 INHERIT (to_static_tracepoint_marker_at
, t
);
703 INHERIT (to_static_tracepoint_markers_by_strid
, t
);
704 INHERIT (to_traceframe_info
, t
);
705 INHERIT (to_use_agent
, t
);
706 INHERIT (to_can_use_agent
, t
);
707 INHERIT (to_augmented_libraries_svr4_read
, t
);
708 INHERIT (to_magic
, t
);
709 INHERIT (to_supports_evaluation_of_breakpoint_conditions
, t
);
710 INHERIT (to_can_run_breakpoint_commands
, t
);
711 /* Do not inherit to_memory_map. */
712 /* Do not inherit to_flash_erase. */
713 /* Do not inherit to_flash_done. */
717 /* Clean up a target struct so it no longer has any zero pointers in
718 it. Some entries are defaulted to a method that print an error,
719 others are hard-wired to a standard recursive default. */
721 #define de_fault(field, value) \
722 if (!current_target.field) \
723 current_target.field = value
726 (void (*) (char *, int))
729 (void (*) (struct target_ops
*))
731 de_fault (to_post_attach
,
732 (void (*) (struct target_ops
*, int))
734 de_fault (to_prepare_to_store
,
735 (void (*) (struct target_ops
*, struct regcache
*))
737 de_fault (deprecated_xfer_memory
,
738 (int (*) (CORE_ADDR
, gdb_byte
*, int, int,
739 struct mem_attrib
*, struct target_ops
*))
741 de_fault (to_files_info
,
742 (void (*) (struct target_ops
*))
744 de_fault (to_can_use_hw_breakpoint
,
745 (int (*) (struct target_ops
*, int, int, int))
747 de_fault (to_insert_hw_breakpoint
,
748 (int (*) (struct target_ops
*, struct gdbarch
*,
749 struct bp_target_info
*))
751 de_fault (to_remove_hw_breakpoint
,
752 (int (*) (struct target_ops
*, struct gdbarch
*,
753 struct bp_target_info
*))
755 de_fault (to_insert_watchpoint
,
756 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
757 struct expression
*))
759 de_fault (to_remove_watchpoint
,
760 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
761 struct expression
*))
763 de_fault (to_watchpoint_addr_within_range
,
764 default_watchpoint_addr_within_range
);
765 de_fault (to_region_ok_for_hw_watchpoint
,
766 default_region_ok_for_hw_watchpoint
);
767 de_fault (to_can_accel_watchpoint_condition
,
768 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
769 struct expression
*))
771 de_fault (to_terminal_init
,
772 (void (*) (struct target_ops
*))
774 de_fault (to_terminal_inferior
,
775 (void (*) (struct target_ops
*))
777 de_fault (to_terminal_ours_for_output
,
778 (void (*) (struct target_ops
*))
780 de_fault (to_terminal_ours
,
781 (void (*) (struct target_ops
*))
783 de_fault (to_terminal_save_ours
,
784 (void (*) (struct target_ops
*))
786 de_fault (to_terminal_info
,
787 default_terminal_info
);
789 (void (*) (struct target_ops
*, char *, int))
791 de_fault (to_post_startup_inferior
,
792 (void (*) (struct target_ops
*, ptid_t
))
794 de_fault (to_insert_fork_catchpoint
,
795 (int (*) (struct target_ops
*, int))
797 de_fault (to_remove_fork_catchpoint
,
798 (int (*) (struct target_ops
*, int))
800 de_fault (to_insert_vfork_catchpoint
,
801 (int (*) (struct target_ops
*, int))
803 de_fault (to_remove_vfork_catchpoint
,
804 (int (*) (struct target_ops
*, int))
806 de_fault (to_insert_exec_catchpoint
,
807 (int (*) (struct target_ops
*, int))
809 de_fault (to_remove_exec_catchpoint
,
810 (int (*) (struct target_ops
*, int))
812 de_fault (to_set_syscall_catchpoint
,
813 (int (*) (struct target_ops
*, int, int, int, int, int *))
815 de_fault (to_has_exited
,
816 (int (*) (struct target_ops
*, int, int, int *))
818 de_fault (to_can_run
,
819 (int (*) (struct target_ops
*))
821 de_fault (to_extra_thread_info
,
822 (char *(*) (struct target_ops
*, struct thread_info
*))
824 de_fault (to_thread_name
,
825 (char *(*) (struct target_ops
*, struct thread_info
*))
828 (void (*) (struct target_ops
*, ptid_t
))
831 (void (*) (struct target_ops
*, char *, struct ui_file
*))
833 de_fault (to_pid_to_exec_file
,
834 (char *(*) (struct target_ops
*, int))
836 de_fault (to_thread_architecture
,
837 default_thread_architecture
);
838 current_target
.to_read_description
= NULL
;
839 de_fault (to_get_ada_task_ptid
,
840 (ptid_t (*) (struct target_ops
*, long, long))
841 default_get_ada_task_ptid
);
842 de_fault (to_supports_multi_process
,
843 (int (*) (struct target_ops
*))
845 de_fault (to_supports_enable_disable_tracepoint
,
846 (int (*) (struct target_ops
*))
848 de_fault (to_supports_string_tracing
,
849 (int (*) (struct target_ops
*))
851 de_fault (to_trace_init
,
852 (void (*) (struct target_ops
*))
854 de_fault (to_download_tracepoint
,
855 (void (*) (struct target_ops
*, struct bp_location
*))
857 de_fault (to_can_download_tracepoint
,
858 (int (*) (struct target_ops
*))
860 de_fault (to_download_trace_state_variable
,
861 (void (*) (struct target_ops
*, struct trace_state_variable
*))
863 de_fault (to_enable_tracepoint
,
864 (void (*) (struct target_ops
*, struct bp_location
*))
866 de_fault (to_disable_tracepoint
,
867 (void (*) (struct target_ops
*, struct bp_location
*))
869 de_fault (to_trace_set_readonly_regions
,
870 (void (*) (struct target_ops
*))
872 de_fault (to_trace_start
,
873 (void (*) (struct target_ops
*))
875 de_fault (to_get_trace_status
,
876 (int (*) (struct target_ops
*, struct trace_status
*))
878 de_fault (to_get_tracepoint_status
,
879 (void (*) (struct target_ops
*, struct breakpoint
*,
880 struct uploaded_tp
*))
882 de_fault (to_trace_stop
,
883 (void (*) (struct target_ops
*))
885 de_fault (to_trace_find
,
886 (int (*) (enum trace_find_type
, int, CORE_ADDR
, CORE_ADDR
, int *))
888 de_fault (to_get_trace_state_variable_value
,
889 (int (*) (int, LONGEST
*))
891 de_fault (to_save_trace_data
,
892 (int (*) (const char *))
894 de_fault (to_upload_tracepoints
,
895 (int (*) (struct uploaded_tp
**))
897 de_fault (to_upload_trace_state_variables
,
898 (int (*) (struct uploaded_tsv
**))
900 de_fault (to_get_raw_trace_data
,
901 (LONGEST (*) (gdb_byte
*, ULONGEST
, LONGEST
))
903 de_fault (to_get_min_fast_tracepoint_insn_len
,
906 de_fault (to_set_disconnected_tracing
,
909 de_fault (to_set_circular_trace_buffer
,
912 de_fault (to_set_trace_buffer_size
,
915 de_fault (to_set_trace_notes
,
916 (int (*) (const char *, const char *, const char *))
918 de_fault (to_get_tib_address
,
919 (int (*) (ptid_t
, CORE_ADDR
*))
921 de_fault (to_set_permissions
,
924 de_fault (to_static_tracepoint_marker_at
,
925 (int (*) (CORE_ADDR
, struct static_tracepoint_marker
*))
927 de_fault (to_static_tracepoint_markers_by_strid
,
928 (VEC(static_tracepoint_marker_p
) * (*) (const char *))
930 de_fault (to_traceframe_info
,
931 (struct traceframe_info
* (*) (void))
933 de_fault (to_supports_evaluation_of_breakpoint_conditions
,
934 (int (*) (struct target_ops
*))
936 de_fault (to_can_run_breakpoint_commands
,
937 (int (*) (struct target_ops
*))
939 de_fault (to_use_agent
,
942 de_fault (to_can_use_agent
,
945 de_fault (to_augmented_libraries_svr4_read
,
948 de_fault (to_execution_direction
, default_execution_direction
);
952 /* Finally, position the target-stack beneath the squashed
953 "current_target". That way code looking for a non-inherited
954 target method can quickly and simply find it. */
955 current_target
.beneath
= target_stack
;
958 setup_target_debug ();
961 /* Push a new target type into the stack of the existing target accessors,
962 possibly superseding some of the existing accessors.
964 Rather than allow an empty stack, we always have the dummy target at
965 the bottom stratum, so we can call the function vectors without
969 push_target (struct target_ops
*t
)
971 struct target_ops
**cur
;
973 /* Check magic number. If wrong, it probably means someone changed
974 the struct definition, but not all the places that initialize one. */
975 if (t
->to_magic
!= OPS_MAGIC
)
977 fprintf_unfiltered (gdb_stderr
,
978 "Magic number of %s target struct wrong\n",
980 internal_error (__FILE__
, __LINE__
,
981 _("failed internal consistency check"));
984 /* Find the proper stratum to install this target in. */
985 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
987 if ((int) (t
->to_stratum
) >= (int) (*cur
)->to_stratum
)
991 /* If there's already targets at this stratum, remove them. */
992 /* FIXME: cagney/2003-10-15: I think this should be popping all
993 targets to CUR, and not just those at this stratum level. */
994 while ((*cur
) != NULL
&& t
->to_stratum
== (*cur
)->to_stratum
)
996 /* There's already something at this stratum level. Close it,
997 and un-hook it from the stack. */
998 struct target_ops
*tmp
= (*cur
);
1000 (*cur
) = (*cur
)->beneath
;
1001 tmp
->beneath
= NULL
;
1005 /* We have removed all targets in our stratum, now add the new one. */
1006 t
->beneath
= (*cur
);
1009 update_current_target ();
1012 /* Remove a target_ops vector from the stack, wherever it may be.
1013 Return how many times it was removed (0 or 1). */
1016 unpush_target (struct target_ops
*t
)
1018 struct target_ops
**cur
;
1019 struct target_ops
*tmp
;
1021 if (t
->to_stratum
== dummy_stratum
)
1022 internal_error (__FILE__
, __LINE__
,
1023 _("Attempt to unpush the dummy target"));
1025 /* Look for the specified target. Note that we assume that a target
1026 can only occur once in the target stack. */
1028 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1034 /* If we don't find target_ops, quit. Only open targets should be
1039 /* Unchain the target. */
1041 (*cur
) = (*cur
)->beneath
;
1042 tmp
->beneath
= NULL
;
1044 update_current_target ();
1046 /* Finally close the target. Note we do this after unchaining, so
1047 any target method calls from within the target_close
1048 implementation don't end up in T anymore. */
1055 pop_all_targets_above (enum strata above_stratum
)
1057 while ((int) (current_target
.to_stratum
) > (int) above_stratum
)
1059 if (!unpush_target (target_stack
))
1061 fprintf_unfiltered (gdb_stderr
,
1062 "pop_all_targets couldn't find target %s\n",
1063 target_stack
->to_shortname
);
1064 internal_error (__FILE__
, __LINE__
,
1065 _("failed internal consistency check"));
1072 pop_all_targets (void)
1074 pop_all_targets_above (dummy_stratum
);
1077 /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */
1080 target_is_pushed (struct target_ops
*t
)
1082 struct target_ops
**cur
;
1084 /* Check magic number. If wrong, it probably means someone changed
1085 the struct definition, but not all the places that initialize one. */
1086 if (t
->to_magic
!= OPS_MAGIC
)
1088 fprintf_unfiltered (gdb_stderr
,
1089 "Magic number of %s target struct wrong\n",
1091 internal_error (__FILE__
, __LINE__
,
1092 _("failed internal consistency check"));
1095 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1102 /* Using the objfile specified in OBJFILE, find the address for the
1103 current thread's thread-local storage with offset OFFSET. */
1105 target_translate_tls_address (struct objfile
*objfile
, CORE_ADDR offset
)
1107 volatile CORE_ADDR addr
= 0;
1108 struct target_ops
*target
;
1110 for (target
= current_target
.beneath
;
1112 target
= target
->beneath
)
1114 if (target
->to_get_thread_local_address
!= NULL
)
1119 && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ()))
1121 ptid_t ptid
= inferior_ptid
;
1122 volatile struct gdb_exception ex
;
1124 TRY_CATCH (ex
, RETURN_MASK_ALL
)
1128 /* Fetch the load module address for this objfile. */
1129 lm_addr
= gdbarch_fetch_tls_load_module_address (target_gdbarch (),
1131 /* If it's 0, throw the appropriate exception. */
1133 throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR
,
1134 _("TLS load module not found"));
1136 addr
= target
->to_get_thread_local_address (target
, ptid
,
1139 /* If an error occurred, print TLS related messages here. Otherwise,
1140 throw the error to some higher catcher. */
1143 int objfile_is_library
= (objfile
->flags
& OBJF_SHARED
);
1147 case TLS_NO_LIBRARY_SUPPORT_ERROR
:
1148 error (_("Cannot find thread-local variables "
1149 "in this thread library."));
1151 case TLS_LOAD_MODULE_NOT_FOUND_ERROR
:
1152 if (objfile_is_library
)
1153 error (_("Cannot find shared library `%s' in dynamic"
1154 " linker's load module list"), objfile_name (objfile
));
1156 error (_("Cannot find executable file `%s' in dynamic"
1157 " linker's load module list"), objfile_name (objfile
));
1159 case TLS_NOT_ALLOCATED_YET_ERROR
:
1160 if (objfile_is_library
)
1161 error (_("The inferior has not yet allocated storage for"
1162 " thread-local variables in\n"
1163 "the shared library `%s'\n"
1165 objfile_name (objfile
), target_pid_to_str (ptid
));
1167 error (_("The inferior has not yet allocated storage for"
1168 " thread-local variables in\n"
1169 "the executable `%s'\n"
1171 objfile_name (objfile
), target_pid_to_str (ptid
));
1173 case TLS_GENERIC_ERROR
:
1174 if (objfile_is_library
)
1175 error (_("Cannot find thread-local storage for %s, "
1176 "shared library %s:\n%s"),
1177 target_pid_to_str (ptid
),
1178 objfile_name (objfile
), ex
.message
);
1180 error (_("Cannot find thread-local storage for %s, "
1181 "executable file %s:\n%s"),
1182 target_pid_to_str (ptid
),
1183 objfile_name (objfile
), ex
.message
);
1186 throw_exception (ex
);
1191 /* It wouldn't be wrong here to try a gdbarch method, too; finding
1192 TLS is an ABI-specific thing. But we don't do that yet. */
1194 error (_("Cannot find thread-local variables on this target"));
1200 target_xfer_status_to_string (enum target_xfer_status err
)
1202 #define CASE(X) case X: return #X
1205 CASE(TARGET_XFER_E_IO
);
1206 CASE(TARGET_XFER_E_UNAVAILABLE
);
1215 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
1217 /* target_read_string -- read a null terminated string, up to LEN bytes,
1218 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
1219 Set *STRING to a pointer to malloc'd memory containing the data; the caller
1220 is responsible for freeing it. Return the number of bytes successfully
1224 target_read_string (CORE_ADDR memaddr
, char **string
, int len
, int *errnop
)
1226 int tlen
, offset
, i
;
1230 int buffer_allocated
;
1232 unsigned int nbytes_read
= 0;
1234 gdb_assert (string
);
1236 /* Small for testing. */
1237 buffer_allocated
= 4;
1238 buffer
= xmalloc (buffer_allocated
);
1243 tlen
= MIN (len
, 4 - (memaddr
& 3));
1244 offset
= memaddr
& 3;
1246 errcode
= target_read_memory (memaddr
& ~3, buf
, sizeof buf
);
1249 /* The transfer request might have crossed the boundary to an
1250 unallocated region of memory. Retry the transfer, requesting
1254 errcode
= target_read_memory (memaddr
, buf
, 1);
1259 if (bufptr
- buffer
+ tlen
> buffer_allocated
)
1263 bytes
= bufptr
- buffer
;
1264 buffer_allocated
*= 2;
1265 buffer
= xrealloc (buffer
, buffer_allocated
);
1266 bufptr
= buffer
+ bytes
;
1269 for (i
= 0; i
< tlen
; i
++)
1271 *bufptr
++ = buf
[i
+ offset
];
1272 if (buf
[i
+ offset
] == '\000')
1274 nbytes_read
+= i
+ 1;
1281 nbytes_read
+= tlen
;
1290 struct target_section_table
*
1291 target_get_section_table (struct target_ops
*target
)
1293 struct target_ops
*t
;
1296 fprintf_unfiltered (gdb_stdlog
, "target_get_section_table ()\n");
1298 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
1299 if (t
->to_get_section_table
!= NULL
)
1300 return (*t
->to_get_section_table
) (t
);
1305 /* Find a section containing ADDR. */
1307 struct target_section
*
1308 target_section_by_addr (struct target_ops
*target
, CORE_ADDR addr
)
1310 struct target_section_table
*table
= target_get_section_table (target
);
1311 struct target_section
*secp
;
1316 for (secp
= table
->sections
; secp
< table
->sections_end
; secp
++)
1318 if (addr
>= secp
->addr
&& addr
< secp
->endaddr
)
1324 /* Read memory from the live target, even if currently inspecting a
1325 traceframe. The return is the same as that of target_read. */
1327 static enum target_xfer_status
1328 target_read_live_memory (enum target_object object
,
1329 ULONGEST memaddr
, gdb_byte
*myaddr
, ULONGEST len
,
1330 ULONGEST
*xfered_len
)
1332 enum target_xfer_status ret
;
1333 struct cleanup
*cleanup
;
1335 /* Switch momentarily out of tfind mode so to access live memory.
1336 Note that this must not clear global state, such as the frame
1337 cache, which must still remain valid for the previous traceframe.
1338 We may be _building_ the frame cache at this point. */
1339 cleanup
= make_cleanup_restore_traceframe_number ();
1340 set_traceframe_number (-1);
1342 ret
= target_xfer_partial (current_target
.beneath
, object
, NULL
,
1343 myaddr
, NULL
, memaddr
, len
, xfered_len
);
1345 do_cleanups (cleanup
);
1349 /* Using the set of read-only target sections of OPS, read live
1350 read-only memory. Note that the actual reads start from the
1351 top-most target again.
1353 For interface/parameters/return description see target.h,
1356 static enum target_xfer_status
1357 memory_xfer_live_readonly_partial (struct target_ops
*ops
,
1358 enum target_object object
,
1359 gdb_byte
*readbuf
, ULONGEST memaddr
,
1360 ULONGEST len
, ULONGEST
*xfered_len
)
1362 struct target_section
*secp
;
1363 struct target_section_table
*table
;
1365 secp
= target_section_by_addr (ops
, memaddr
);
1367 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1368 secp
->the_bfd_section
)
1371 struct target_section
*p
;
1372 ULONGEST memend
= memaddr
+ len
;
1374 table
= target_get_section_table (ops
);
1376 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
1378 if (memaddr
>= p
->addr
)
1380 if (memend
<= p
->endaddr
)
1382 /* Entire transfer is within this section. */
1383 return target_read_live_memory (object
, memaddr
,
1384 readbuf
, len
, xfered_len
);
1386 else if (memaddr
>= p
->endaddr
)
1388 /* This section ends before the transfer starts. */
1393 /* This section overlaps the transfer. Just do half. */
1394 len
= p
->endaddr
- memaddr
;
1395 return target_read_live_memory (object
, memaddr
,
1396 readbuf
, len
, xfered_len
);
1402 return TARGET_XFER_EOF
;
1405 /* Read memory from more than one valid target. A core file, for
1406 instance, could have some of memory but delegate other bits to
1407 the target below it. So, we must manually try all targets. */
1409 static enum target_xfer_status
1410 raw_memory_xfer_partial (struct target_ops
*ops
, gdb_byte
*readbuf
,
1411 const gdb_byte
*writebuf
, ULONGEST memaddr
, LONGEST len
,
1412 ULONGEST
*xfered_len
)
1414 enum target_xfer_status res
;
1418 res
= ops
->to_xfer_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1419 readbuf
, writebuf
, memaddr
, len
,
1421 if (res
== TARGET_XFER_OK
)
1424 /* Stop if the target reports that the memory is not available. */
1425 if (res
== TARGET_XFER_E_UNAVAILABLE
)
1428 /* We want to continue past core files to executables, but not
1429 past a running target's memory. */
1430 if (ops
->to_has_all_memory (ops
))
1435 while (ops
!= NULL
);
1440 /* Perform a partial memory transfer.
1441 For docs see target.h, to_xfer_partial. */
1443 static enum target_xfer_status
1444 memory_xfer_partial_1 (struct target_ops
*ops
, enum target_object object
,
1445 gdb_byte
*readbuf
, const gdb_byte
*writebuf
, ULONGEST memaddr
,
1446 ULONGEST len
, ULONGEST
*xfered_len
)
1448 enum target_xfer_status res
;
1450 struct mem_region
*region
;
1451 struct inferior
*inf
;
1453 /* For accesses to unmapped overlay sections, read directly from
1454 files. Must do this first, as MEMADDR may need adjustment. */
1455 if (readbuf
!= NULL
&& overlay_debugging
)
1457 struct obj_section
*section
= find_pc_overlay (memaddr
);
1459 if (pc_in_unmapped_range (memaddr
, section
))
1461 struct target_section_table
*table
1462 = target_get_section_table (ops
);
1463 const char *section_name
= section
->the_bfd_section
->name
;
1465 memaddr
= overlay_mapped_address (memaddr
, section
);
1466 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1467 memaddr
, len
, xfered_len
,
1469 table
->sections_end
,
1474 /* Try the executable files, if "trust-readonly-sections" is set. */
1475 if (readbuf
!= NULL
&& trust_readonly
)
1477 struct target_section
*secp
;
1478 struct target_section_table
*table
;
1480 secp
= target_section_by_addr (ops
, memaddr
);
1482 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1483 secp
->the_bfd_section
)
1486 table
= target_get_section_table (ops
);
1487 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1488 memaddr
, len
, xfered_len
,
1490 table
->sections_end
,
1495 /* If reading unavailable memory in the context of traceframes, and
1496 this address falls within a read-only section, fallback to
1497 reading from live memory. */
1498 if (readbuf
!= NULL
&& get_traceframe_number () != -1)
1500 VEC(mem_range_s
) *available
;
1502 /* If we fail to get the set of available memory, then the
1503 target does not support querying traceframe info, and so we
1504 attempt reading from the traceframe anyway (assuming the
1505 target implements the old QTro packet then). */
1506 if (traceframe_available_memory (&available
, memaddr
, len
))
1508 struct cleanup
*old_chain
;
1510 old_chain
= make_cleanup (VEC_cleanup(mem_range_s
), &available
);
1512 if (VEC_empty (mem_range_s
, available
)
1513 || VEC_index (mem_range_s
, available
, 0)->start
!= memaddr
)
1515 /* Don't read into the traceframe's available
1517 if (!VEC_empty (mem_range_s
, available
))
1519 LONGEST oldlen
= len
;
1521 len
= VEC_index (mem_range_s
, available
, 0)->start
- memaddr
;
1522 gdb_assert (len
<= oldlen
);
1525 do_cleanups (old_chain
);
1527 /* This goes through the topmost target again. */
1528 res
= memory_xfer_live_readonly_partial (ops
, object
,
1531 if (res
== TARGET_XFER_OK
)
1532 return TARGET_XFER_OK
;
1535 /* No use trying further, we know some memory starting
1536 at MEMADDR isn't available. */
1538 return TARGET_XFER_E_UNAVAILABLE
;
1542 /* Don't try to read more than how much is available, in
1543 case the target implements the deprecated QTro packet to
1544 cater for older GDBs (the target's knowledge of read-only
1545 sections may be outdated by now). */
1546 len
= VEC_index (mem_range_s
, available
, 0)->length
;
1548 do_cleanups (old_chain
);
1552 /* Try GDB's internal data cache. */
1553 region
= lookup_mem_region (memaddr
);
1554 /* region->hi == 0 means there's no upper bound. */
1555 if (memaddr
+ len
< region
->hi
|| region
->hi
== 0)
1558 reg_len
= region
->hi
- memaddr
;
1560 switch (region
->attrib
.mode
)
1563 if (writebuf
!= NULL
)
1564 return TARGET_XFER_E_IO
;
1568 if (readbuf
!= NULL
)
1569 return TARGET_XFER_E_IO
;
1573 /* We only support writing to flash during "load" for now. */
1574 if (writebuf
!= NULL
)
1575 error (_("Writing to flash memory forbidden in this context"));
1579 return TARGET_XFER_E_IO
;
1582 if (!ptid_equal (inferior_ptid
, null_ptid
))
1583 inf
= find_inferior_pid (ptid_get_pid (inferior_ptid
));
1588 /* The dcache reads whole cache lines; that doesn't play well
1589 with reading from a trace buffer, because reading outside of
1590 the collected memory range fails. */
1591 && get_traceframe_number () == -1
1592 && (region
->attrib
.cache
1593 || (stack_cache_enabled_p () && object
== TARGET_OBJECT_STACK_MEMORY
)
1594 || (code_cache_enabled_p () && object
== TARGET_OBJECT_CODE_MEMORY
)))
1596 DCACHE
*dcache
= target_dcache_get_or_init ();
1599 if (readbuf
!= NULL
)
1600 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, readbuf
, reg_len
, 0);
1602 /* FIXME drow/2006-08-09: If we're going to preserve const
1603 correctness dcache_xfer_memory should take readbuf and
1605 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, (void *) writebuf
,
1608 return TARGET_XFER_E_IO
;
1611 *xfered_len
= (ULONGEST
) l
;
1612 return TARGET_XFER_OK
;
1616 /* If none of those methods found the memory we wanted, fall back
1617 to a target partial transfer. Normally a single call to
1618 to_xfer_partial is enough; if it doesn't recognize an object
1619 it will call the to_xfer_partial of the next target down.
1620 But for memory this won't do. Memory is the only target
1621 object which can be read from more than one valid target.
1622 A core file, for instance, could have some of memory but
1623 delegate other bits to the target below it. So, we must
1624 manually try all targets. */
1626 res
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, memaddr
, reg_len
,
1629 /* Make sure the cache gets updated no matter what - if we are writing
1630 to the stack. Even if this write is not tagged as such, we still need
1631 to update the cache. */
1633 if (res
== TARGET_XFER_OK
1636 && target_dcache_init_p ()
1637 && !region
->attrib
.cache
1638 && ((stack_cache_enabled_p () && object
!= TARGET_OBJECT_STACK_MEMORY
)
1639 || (code_cache_enabled_p () && object
!= TARGET_OBJECT_CODE_MEMORY
)))
1641 DCACHE
*dcache
= target_dcache_get ();
1643 dcache_update (dcache
, memaddr
, (void *) writebuf
, reg_len
);
1646 /* If we still haven't got anything, return the last error. We
1651 /* Perform a partial memory transfer. For docs see target.h,
1654 static enum target_xfer_status
1655 memory_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1656 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1657 ULONGEST memaddr
, ULONGEST len
, ULONGEST
*xfered_len
)
1659 enum target_xfer_status res
;
1661 /* Zero length requests are ok and require no work. */
1663 return TARGET_XFER_EOF
;
1665 /* Fill in READBUF with breakpoint shadows, or WRITEBUF with
1666 breakpoint insns, thus hiding out from higher layers whether
1667 there are software breakpoints inserted in the code stream. */
1668 if (readbuf
!= NULL
)
1670 res
= memory_xfer_partial_1 (ops
, object
, readbuf
, NULL
, memaddr
, len
,
1673 if (res
== TARGET_XFER_OK
&& !show_memory_breakpoints
)
1674 breakpoint_xfer_memory (readbuf
, NULL
, NULL
, memaddr
, res
);
1679 struct cleanup
*old_chain
;
1681 /* A large write request is likely to be partially satisfied
1682 by memory_xfer_partial_1. We will continually malloc
1683 and free a copy of the entire write request for breakpoint
1684 shadow handling even though we only end up writing a small
1685 subset of it. Cap writes to 4KB to mitigate this. */
1686 len
= min (4096, len
);
1688 buf
= xmalloc (len
);
1689 old_chain
= make_cleanup (xfree
, buf
);
1690 memcpy (buf
, writebuf
, len
);
1692 breakpoint_xfer_memory (NULL
, buf
, writebuf
, memaddr
, len
);
1693 res
= memory_xfer_partial_1 (ops
, object
, NULL
, buf
, memaddr
, len
,
1696 do_cleanups (old_chain
);
1703 restore_show_memory_breakpoints (void *arg
)
1705 show_memory_breakpoints
= (uintptr_t) arg
;
1709 make_show_memory_breakpoints_cleanup (int show
)
1711 int current
= show_memory_breakpoints
;
1713 show_memory_breakpoints
= show
;
1714 return make_cleanup (restore_show_memory_breakpoints
,
1715 (void *) (uintptr_t) current
);
1718 /* For docs see target.h, to_xfer_partial. */
1720 enum target_xfer_status
1721 target_xfer_partial (struct target_ops
*ops
,
1722 enum target_object object
, const char *annex
,
1723 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1724 ULONGEST offset
, ULONGEST len
,
1725 ULONGEST
*xfered_len
)
1727 enum target_xfer_status retval
;
1729 gdb_assert (ops
->to_xfer_partial
!= NULL
);
1731 /* Transfer is done when LEN is zero. */
1733 return TARGET_XFER_EOF
;
1735 if (writebuf
&& !may_write_memory
)
1736 error (_("Writing to memory is not allowed (addr %s, len %s)"),
1737 core_addr_to_string_nz (offset
), plongest (len
));
1741 /* If this is a memory transfer, let the memory-specific code
1742 have a look at it instead. Memory transfers are more
1744 if (object
== TARGET_OBJECT_MEMORY
|| object
== TARGET_OBJECT_STACK_MEMORY
1745 || object
== TARGET_OBJECT_CODE_MEMORY
)
1746 retval
= memory_xfer_partial (ops
, object
, readbuf
,
1747 writebuf
, offset
, len
, xfered_len
);
1748 else if (object
== TARGET_OBJECT_RAW_MEMORY
)
1750 /* Request the normal memory object from other layers. */
1751 retval
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, offset
, len
,
1755 retval
= ops
->to_xfer_partial (ops
, object
, annex
, readbuf
,
1756 writebuf
, offset
, len
, xfered_len
);
1760 const unsigned char *myaddr
= NULL
;
1762 fprintf_unfiltered (gdb_stdlog
,
1763 "%s:target_xfer_partial "
1764 "(%d, %s, %s, %s, %s, %s) = %d, %s",
1767 (annex
? annex
: "(null)"),
1768 host_address_to_string (readbuf
),
1769 host_address_to_string (writebuf
),
1770 core_addr_to_string_nz (offset
),
1771 pulongest (len
), retval
,
1772 pulongest (*xfered_len
));
1778 if (retval
== TARGET_XFER_OK
&& myaddr
!= NULL
)
1782 fputs_unfiltered (", bytes =", gdb_stdlog
);
1783 for (i
= 0; i
< *xfered_len
; i
++)
1785 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
1787 if (targetdebug
< 2 && i
> 0)
1789 fprintf_unfiltered (gdb_stdlog
, " ...");
1792 fprintf_unfiltered (gdb_stdlog
, "\n");
1795 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
1799 fputc_unfiltered ('\n', gdb_stdlog
);
1802 /* Check implementations of to_xfer_partial update *XFERED_LEN
1803 properly. Do assertion after printing debug messages, so that we
1804 can find more clues on assertion failure from debugging messages. */
1805 if (retval
== TARGET_XFER_OK
|| retval
== TARGET_XFER_E_UNAVAILABLE
)
1806 gdb_assert (*xfered_len
> 0);
1811 /* Read LEN bytes of target memory at address MEMADDR, placing the
1812 results in GDB's memory at MYADDR. Returns either 0 for success or
1813 TARGET_XFER_E_IO if any error occurs.
1815 If an error occurs, no guarantee is made about the contents of the data at
1816 MYADDR. In particular, the caller should not depend upon partial reads
1817 filling the buffer with good data. There is no way for the caller to know
1818 how much good data might have been transfered anyway. Callers that can
1819 deal with partial reads should call target_read (which will retry until
1820 it makes no progress, and then return how much was transferred). */
1823 target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1825 /* Dispatch to the topmost target, not the flattened current_target.
1826 Memory accesses check target->to_has_(all_)memory, and the
1827 flattened target doesn't inherit those. */
1828 if (target_read (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1829 myaddr
, memaddr
, len
) == len
)
1832 return TARGET_XFER_E_IO
;
1835 /* Like target_read_memory, but specify explicitly that this is a read
1836 from the target's raw memory. That is, this read bypasses the
1837 dcache, breakpoint shadowing, etc. */
1840 target_read_raw_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1842 /* See comment in target_read_memory about why the request starts at
1843 current_target.beneath. */
1844 if (target_read (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1845 myaddr
, memaddr
, len
) == len
)
1848 return TARGET_XFER_E_IO
;
1851 /* Like target_read_memory, but specify explicitly that this is a read from
1852 the target's stack. This may trigger different cache behavior. */
1855 target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1857 /* See comment in target_read_memory about why the request starts at
1858 current_target.beneath. */
1859 if (target_read (current_target
.beneath
, TARGET_OBJECT_STACK_MEMORY
, NULL
,
1860 myaddr
, memaddr
, len
) == len
)
1863 return TARGET_XFER_E_IO
;
1866 /* Like target_read_memory, but specify explicitly that this is a read from
1867 the target's code. This may trigger different cache behavior. */
1870 target_read_code (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1872 /* See comment in target_read_memory about why the request starts at
1873 current_target.beneath. */
1874 if (target_read (current_target
.beneath
, TARGET_OBJECT_CODE_MEMORY
, NULL
,
1875 myaddr
, memaddr
, len
) == len
)
1878 return TARGET_XFER_E_IO
;
1881 /* Write LEN bytes from MYADDR to target memory at address MEMADDR.
1882 Returns either 0 for success or TARGET_XFER_E_IO if any
1883 error occurs. If an error occurs, no guarantee is made about how
1884 much data got written. Callers that can deal with partial writes
1885 should call target_write. */
1888 target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1890 /* See comment in target_read_memory about why the request starts at
1891 current_target.beneath. */
1892 if (target_write (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1893 myaddr
, memaddr
, len
) == len
)
1896 return TARGET_XFER_E_IO
;
1899 /* Write LEN bytes from MYADDR to target raw memory at address
1900 MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO
1901 if any error occurs. If an error occurs, no guarantee is made
1902 about how much data got written. Callers that can deal with
1903 partial writes should call target_write. */
1906 target_write_raw_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1908 /* See comment in target_read_memory about why the request starts at
1909 current_target.beneath. */
1910 if (target_write (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1911 myaddr
, memaddr
, len
) == len
)
1914 return TARGET_XFER_E_IO
;
1917 /* Fetch the target's memory map. */
1920 target_memory_map (void)
1922 VEC(mem_region_s
) *result
;
1923 struct mem_region
*last_one
, *this_one
;
1925 struct target_ops
*t
;
1928 fprintf_unfiltered (gdb_stdlog
, "target_memory_map ()\n");
1930 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1931 if (t
->to_memory_map
!= NULL
)
1937 result
= t
->to_memory_map (t
);
1941 qsort (VEC_address (mem_region_s
, result
),
1942 VEC_length (mem_region_s
, result
),
1943 sizeof (struct mem_region
), mem_region_cmp
);
1945 /* Check that regions do not overlap. Simultaneously assign
1946 a numbering for the "mem" commands to use to refer to
1949 for (ix
= 0; VEC_iterate (mem_region_s
, result
, ix
, this_one
); ix
++)
1951 this_one
->number
= ix
;
1953 if (last_one
&& last_one
->hi
> this_one
->lo
)
1955 warning (_("Overlapping regions in memory map: ignoring"));
1956 VEC_free (mem_region_s
, result
);
1959 last_one
= this_one
;
1966 target_flash_erase (ULONGEST address
, LONGEST length
)
1968 struct target_ops
*t
;
1970 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1971 if (t
->to_flash_erase
!= NULL
)
1974 fprintf_unfiltered (gdb_stdlog
, "target_flash_erase (%s, %s)\n",
1975 hex_string (address
), phex (length
, 0));
1976 t
->to_flash_erase (t
, address
, length
);
1984 target_flash_done (void)
1986 struct target_ops
*t
;
1988 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1989 if (t
->to_flash_done
!= NULL
)
1992 fprintf_unfiltered (gdb_stdlog
, "target_flash_done\n");
1993 t
->to_flash_done (t
);
2001 show_trust_readonly (struct ui_file
*file
, int from_tty
,
2002 struct cmd_list_element
*c
, const char *value
)
2004 fprintf_filtered (file
,
2005 _("Mode for reading from readonly sections is %s.\n"),
2009 /* More generic transfers. */
2011 static enum target_xfer_status
2012 default_xfer_partial (struct target_ops
*ops
, enum target_object object
,
2013 const char *annex
, gdb_byte
*readbuf
,
2014 const gdb_byte
*writebuf
, ULONGEST offset
, ULONGEST len
,
2015 ULONGEST
*xfered_len
)
2017 if (object
== TARGET_OBJECT_MEMORY
2018 && ops
->deprecated_xfer_memory
!= NULL
)
2019 /* If available, fall back to the target's
2020 "deprecated_xfer_memory" method. */
2025 if (writebuf
!= NULL
)
2027 void *buffer
= xmalloc (len
);
2028 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
2030 memcpy (buffer
, writebuf
, len
);
2031 xfered
= ops
->deprecated_xfer_memory (offset
, buffer
, len
,
2032 1/*write*/, NULL
, ops
);
2033 do_cleanups (cleanup
);
2035 if (readbuf
!= NULL
)
2036 xfered
= ops
->deprecated_xfer_memory (offset
, readbuf
, len
,
2037 0/*read*/, NULL
, ops
);
2040 *xfered_len
= (ULONGEST
) xfered
;
2041 return TARGET_XFER_E_IO
;
2043 else if (xfered
== 0 && errno
== 0)
2044 /* "deprecated_xfer_memory" uses 0, cross checked against
2045 ERRNO as one indication of an error. */
2046 return TARGET_XFER_EOF
;
2048 return TARGET_XFER_E_IO
;
2052 gdb_assert (ops
->beneath
!= NULL
);
2053 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
2054 readbuf
, writebuf
, offset
, len
,
2059 /* Target vector read/write partial wrapper functions. */
2061 static enum target_xfer_status
2062 target_read_partial (struct target_ops
*ops
,
2063 enum target_object object
,
2064 const char *annex
, gdb_byte
*buf
,
2065 ULONGEST offset
, ULONGEST len
,
2066 ULONGEST
*xfered_len
)
2068 return target_xfer_partial (ops
, object
, annex
, buf
, NULL
, offset
, len
,
2072 static enum target_xfer_status
2073 target_write_partial (struct target_ops
*ops
,
2074 enum target_object object
,
2075 const char *annex
, const gdb_byte
*buf
,
2076 ULONGEST offset
, LONGEST len
, ULONGEST
*xfered_len
)
2078 return target_xfer_partial (ops
, object
, annex
, NULL
, buf
, offset
, len
,
2082 /* Wrappers to perform the full transfer. */
2084 /* For docs on target_read see target.h. */
2087 target_read (struct target_ops
*ops
,
2088 enum target_object object
,
2089 const char *annex
, gdb_byte
*buf
,
2090 ULONGEST offset
, LONGEST len
)
2094 while (xfered
< len
)
2096 ULONGEST xfered_len
;
2097 enum target_xfer_status status
;
2099 status
= target_read_partial (ops
, object
, annex
,
2100 (gdb_byte
*) buf
+ xfered
,
2101 offset
+ xfered
, len
- xfered
,
2104 /* Call an observer, notifying them of the xfer progress? */
2105 if (status
== TARGET_XFER_EOF
)
2107 else if (status
== TARGET_XFER_OK
)
2109 xfered
+= xfered_len
;
2119 /* Assuming that the entire [begin, end) range of memory cannot be
2120 read, try to read whatever subrange is possible to read.
2122 The function returns, in RESULT, either zero or one memory block.
2123 If there's a readable subrange at the beginning, it is completely
2124 read and returned. Any further readable subrange will not be read.
2125 Otherwise, if there's a readable subrange at the end, it will be
2126 completely read and returned. Any readable subranges before it
2127 (obviously, not starting at the beginning), will be ignored. In
2128 other cases -- either no readable subrange, or readable subrange(s)
2129 that is neither at the beginning, or end, nothing is returned.
2131 The purpose of this function is to handle a read across a boundary
2132 of accessible memory in a case when memory map is not available.
2133 The above restrictions are fine for this case, but will give
2134 incorrect results if the memory is 'patchy'. However, supporting
2135 'patchy' memory would require trying to read every single byte,
2136 and it seems unacceptable solution. Explicit memory map is
2137 recommended for this case -- and target_read_memory_robust will
2138 take care of reading multiple ranges then. */
2141 read_whatever_is_readable (struct target_ops
*ops
,
2142 ULONGEST begin
, ULONGEST end
,
2143 VEC(memory_read_result_s
) **result
)
2145 gdb_byte
*buf
= xmalloc (end
- begin
);
2146 ULONGEST current_begin
= begin
;
2147 ULONGEST current_end
= end
;
2149 memory_read_result_s r
;
2150 ULONGEST xfered_len
;
2152 /* If we previously failed to read 1 byte, nothing can be done here. */
2153 if (end
- begin
<= 1)
2159 /* Check that either first or the last byte is readable, and give up
2160 if not. This heuristic is meant to permit reading accessible memory
2161 at the boundary of accessible region. */
2162 if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2163 buf
, begin
, 1, &xfered_len
) == TARGET_XFER_OK
)
2168 else if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2169 buf
+ (end
-begin
) - 1, end
- 1, 1,
2170 &xfered_len
) == TARGET_XFER_OK
)
2181 /* Loop invariant is that the [current_begin, current_end) was previously
2182 found to be not readable as a whole.
2184 Note loop condition -- if the range has 1 byte, we can't divide the range
2185 so there's no point trying further. */
2186 while (current_end
- current_begin
> 1)
2188 ULONGEST first_half_begin
, first_half_end
;
2189 ULONGEST second_half_begin
, second_half_end
;
2191 ULONGEST middle
= current_begin
+ (current_end
- current_begin
)/2;
2195 first_half_begin
= current_begin
;
2196 first_half_end
= middle
;
2197 second_half_begin
= middle
;
2198 second_half_end
= current_end
;
2202 first_half_begin
= middle
;
2203 first_half_end
= current_end
;
2204 second_half_begin
= current_begin
;
2205 second_half_end
= middle
;
2208 xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2209 buf
+ (first_half_begin
- begin
),
2211 first_half_end
- first_half_begin
);
2213 if (xfer
== first_half_end
- first_half_begin
)
2215 /* This half reads up fine. So, the error must be in the
2217 current_begin
= second_half_begin
;
2218 current_end
= second_half_end
;
2222 /* This half is not readable. Because we've tried one byte, we
2223 know some part of this half if actually redable. Go to the next
2224 iteration to divide again and try to read.
2226 We don't handle the other half, because this function only tries
2227 to read a single readable subrange. */
2228 current_begin
= first_half_begin
;
2229 current_end
= first_half_end
;
2235 /* The [begin, current_begin) range has been read. */
2237 r
.end
= current_begin
;
2242 /* The [current_end, end) range has been read. */
2243 LONGEST rlen
= end
- current_end
;
2245 r
.data
= xmalloc (rlen
);
2246 memcpy (r
.data
, buf
+ current_end
- begin
, rlen
);
2247 r
.begin
= current_end
;
2251 VEC_safe_push(memory_read_result_s
, (*result
), &r
);
2255 free_memory_read_result_vector (void *x
)
2257 VEC(memory_read_result_s
) *v
= x
;
2258 memory_read_result_s
*current
;
2261 for (ix
= 0; VEC_iterate (memory_read_result_s
, v
, ix
, current
); ++ix
)
2263 xfree (current
->data
);
2265 VEC_free (memory_read_result_s
, v
);
2268 VEC(memory_read_result_s
) *
2269 read_memory_robust (struct target_ops
*ops
, ULONGEST offset
, LONGEST len
)
2271 VEC(memory_read_result_s
) *result
= 0;
2274 while (xfered
< len
)
2276 struct mem_region
*region
= lookup_mem_region (offset
+ xfered
);
2279 /* If there is no explicit region, a fake one should be created. */
2280 gdb_assert (region
);
2282 if (region
->hi
== 0)
2283 rlen
= len
- xfered
;
2285 rlen
= region
->hi
- offset
;
2287 if (region
->attrib
.mode
== MEM_NONE
|| region
->attrib
.mode
== MEM_WO
)
2289 /* Cannot read this region. Note that we can end up here only
2290 if the region is explicitly marked inaccessible, or
2291 'inaccessible-by-default' is in effect. */
2296 LONGEST to_read
= min (len
- xfered
, rlen
);
2297 gdb_byte
*buffer
= (gdb_byte
*)xmalloc (to_read
);
2299 LONGEST xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2300 (gdb_byte
*) buffer
,
2301 offset
+ xfered
, to_read
);
2302 /* Call an observer, notifying them of the xfer progress? */
2305 /* Got an error reading full chunk. See if maybe we can read
2308 read_whatever_is_readable (ops
, offset
+ xfered
,
2309 offset
+ xfered
+ to_read
, &result
);
2314 struct memory_read_result r
;
2316 r
.begin
= offset
+ xfered
;
2317 r
.end
= r
.begin
+ xfer
;
2318 VEC_safe_push (memory_read_result_s
, result
, &r
);
2328 /* An alternative to target_write with progress callbacks. */
2331 target_write_with_progress (struct target_ops
*ops
,
2332 enum target_object object
,
2333 const char *annex
, const gdb_byte
*buf
,
2334 ULONGEST offset
, LONGEST len
,
2335 void (*progress
) (ULONGEST
, void *), void *baton
)
2339 /* Give the progress callback a chance to set up. */
2341 (*progress
) (0, baton
);
2343 while (xfered
< len
)
2345 ULONGEST xfered_len
;
2346 enum target_xfer_status status
;
2348 status
= target_write_partial (ops
, object
, annex
,
2349 (gdb_byte
*) buf
+ xfered
,
2350 offset
+ xfered
, len
- xfered
,
2353 if (status
== TARGET_XFER_EOF
)
2355 if (TARGET_XFER_STATUS_ERROR_P (status
))
2358 gdb_assert (status
== TARGET_XFER_OK
);
2360 (*progress
) (xfered_len
, baton
);
2362 xfered
+= xfered_len
;
2368 /* For docs on target_write see target.h. */
2371 target_write (struct target_ops
*ops
,
2372 enum target_object object
,
2373 const char *annex
, const gdb_byte
*buf
,
2374 ULONGEST offset
, LONGEST len
)
2376 return target_write_with_progress (ops
, object
, annex
, buf
, offset
, len
,
2380 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2381 the size of the transferred data. PADDING additional bytes are
2382 available in *BUF_P. This is a helper function for
2383 target_read_alloc; see the declaration of that function for more
2387 target_read_alloc_1 (struct target_ops
*ops
, enum target_object object
,
2388 const char *annex
, gdb_byte
**buf_p
, int padding
)
2390 size_t buf_alloc
, buf_pos
;
2393 /* This function does not have a length parameter; it reads the
2394 entire OBJECT). Also, it doesn't support objects fetched partly
2395 from one target and partly from another (in a different stratum,
2396 e.g. a core file and an executable). Both reasons make it
2397 unsuitable for reading memory. */
2398 gdb_assert (object
!= TARGET_OBJECT_MEMORY
);
2400 /* Start by reading up to 4K at a time. The target will throttle
2401 this number down if necessary. */
2403 buf
= xmalloc (buf_alloc
);
2407 ULONGEST xfered_len
;
2408 enum target_xfer_status status
;
2410 status
= target_read_partial (ops
, object
, annex
, &buf
[buf_pos
],
2411 buf_pos
, buf_alloc
- buf_pos
- padding
,
2414 if (status
== TARGET_XFER_EOF
)
2416 /* Read all there was. */
2423 else if (status
!= TARGET_XFER_OK
)
2425 /* An error occurred. */
2427 return TARGET_XFER_E_IO
;
2430 buf_pos
+= xfered_len
;
2432 /* If the buffer is filling up, expand it. */
2433 if (buf_alloc
< buf_pos
* 2)
2436 buf
= xrealloc (buf
, buf_alloc
);
2443 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2444 the size of the transferred data. See the declaration in "target.h"
2445 function for more information about the return value. */
2448 target_read_alloc (struct target_ops
*ops
, enum target_object object
,
2449 const char *annex
, gdb_byte
**buf_p
)
2451 return target_read_alloc_1 (ops
, object
, annex
, buf_p
, 0);
2454 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
2455 returned as a string, allocated using xmalloc. If an error occurs
2456 or the transfer is unsupported, NULL is returned. Empty objects
2457 are returned as allocated but empty strings. A warning is issued
2458 if the result contains any embedded NUL bytes. */
2461 target_read_stralloc (struct target_ops
*ops
, enum target_object object
,
2466 LONGEST i
, transferred
;
2468 transferred
= target_read_alloc_1 (ops
, object
, annex
, &buffer
, 1);
2469 bufstr
= (char *) buffer
;
2471 if (transferred
< 0)
2474 if (transferred
== 0)
2475 return xstrdup ("");
2477 bufstr
[transferred
] = 0;
2479 /* Check for embedded NUL bytes; but allow trailing NULs. */
2480 for (i
= strlen (bufstr
); i
< transferred
; i
++)
2483 warning (_("target object %d, annex %s, "
2484 "contained unexpected null characters"),
2485 (int) object
, annex
? annex
: "(none)");
2492 /* Memory transfer methods. */
2495 get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
, gdb_byte
*buf
,
2498 /* This method is used to read from an alternate, non-current
2499 target. This read must bypass the overlay support (as symbols
2500 don't match this target), and GDB's internal cache (wrong cache
2501 for this target). */
2502 if (target_read (ops
, TARGET_OBJECT_RAW_MEMORY
, NULL
, buf
, addr
, len
)
2504 memory_error (TARGET_XFER_E_IO
, addr
);
2508 get_target_memory_unsigned (struct target_ops
*ops
, CORE_ADDR addr
,
2509 int len
, enum bfd_endian byte_order
)
2511 gdb_byte buf
[sizeof (ULONGEST
)];
2513 gdb_assert (len
<= sizeof (buf
));
2514 get_target_memory (ops
, addr
, buf
, len
);
2515 return extract_unsigned_integer (buf
, len
, byte_order
);
2521 target_insert_breakpoint (struct gdbarch
*gdbarch
,
2522 struct bp_target_info
*bp_tgt
)
2524 if (!may_insert_breakpoints
)
2526 warning (_("May not insert breakpoints"));
2530 return current_target
.to_insert_breakpoint (¤t_target
,
2537 target_remove_breakpoint (struct gdbarch
*gdbarch
,
2538 struct bp_target_info
*bp_tgt
)
2540 /* This is kind of a weird case to handle, but the permission might
2541 have been changed after breakpoints were inserted - in which case
2542 we should just take the user literally and assume that any
2543 breakpoints should be left in place. */
2544 if (!may_insert_breakpoints
)
2546 warning (_("May not remove breakpoints"));
2550 return current_target
.to_remove_breakpoint (¤t_target
,
2555 target_info (char *args
, int from_tty
)
2557 struct target_ops
*t
;
2558 int has_all_mem
= 0;
2560 if (symfile_objfile
!= NULL
)
2561 printf_unfiltered (_("Symbols from \"%s\".\n"),
2562 objfile_name (symfile_objfile
));
2564 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2566 if (!(*t
->to_has_memory
) (t
))
2569 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
2572 printf_unfiltered (_("\tWhile running this, "
2573 "GDB does not access memory from...\n"));
2574 printf_unfiltered ("%s:\n", t
->to_longname
);
2575 (t
->to_files_info
) (t
);
2576 has_all_mem
= (*t
->to_has_all_memory
) (t
);
2580 /* This function is called before any new inferior is created, e.g.
2581 by running a program, attaching, or connecting to a target.
2582 It cleans up any state from previous invocations which might
2583 change between runs. This is a subset of what target_preopen
2584 resets (things which might change between targets). */
2587 target_pre_inferior (int from_tty
)
2589 /* Clear out solib state. Otherwise the solib state of the previous
2590 inferior might have survived and is entirely wrong for the new
2591 target. This has been observed on GNU/Linux using glibc 2.3. How
2603 Cannot access memory at address 0xdeadbeef
2606 /* In some OSs, the shared library list is the same/global/shared
2607 across inferiors. If code is shared between processes, so are
2608 memory regions and features. */
2609 if (!gdbarch_has_global_solist (target_gdbarch ()))
2611 no_shared_libraries (NULL
, from_tty
);
2613 invalidate_target_mem_regions ();
2615 target_clear_description ();
2618 agent_capability_invalidate ();
2621 /* Callback for iterate_over_inferiors. Gets rid of the given
2625 dispose_inferior (struct inferior
*inf
, void *args
)
2627 struct thread_info
*thread
;
2629 thread
= any_thread_of_process (inf
->pid
);
2632 switch_to_thread (thread
->ptid
);
2634 /* Core inferiors actually should be detached, not killed. */
2635 if (target_has_execution
)
2638 target_detach (NULL
, 0);
2644 /* This is to be called by the open routine before it does
2648 target_preopen (int from_tty
)
2652 if (have_inferiors ())
2655 || !have_live_inferiors ()
2656 || query (_("A program is being debugged already. Kill it? ")))
2657 iterate_over_inferiors (dispose_inferior
, NULL
);
2659 error (_("Program not killed."));
2662 /* Calling target_kill may remove the target from the stack. But if
2663 it doesn't (which seems like a win for UDI), remove it now. */
2664 /* Leave the exec target, though. The user may be switching from a
2665 live process to a core of the same program. */
2666 pop_all_targets_above (file_stratum
);
2668 target_pre_inferior (from_tty
);
2671 /* Detach a target after doing deferred register stores. */
2674 target_detach (const char *args
, int from_tty
)
2676 struct target_ops
* t
;
2678 if (gdbarch_has_global_breakpoints (target_gdbarch ()))
2679 /* Don't remove global breakpoints here. They're removed on
2680 disconnection from the target. */
2683 /* If we're in breakpoints-always-inserted mode, have to remove
2684 them before detaching. */
2685 remove_breakpoints_pid (ptid_get_pid (inferior_ptid
));
2687 prepare_for_detach ();
2689 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2691 if (t
->to_detach
!= NULL
)
2693 t
->to_detach (t
, args
, from_tty
);
2695 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n",
2701 internal_error (__FILE__
, __LINE__
, _("could not find a target to detach"));
2705 target_disconnect (char *args
, int from_tty
)
2707 struct target_ops
*t
;
2709 /* If we're in breakpoints-always-inserted mode or if breakpoints
2710 are global across processes, we have to remove them before
2712 remove_breakpoints ();
2714 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2715 if (t
->to_disconnect
!= NULL
)
2718 fprintf_unfiltered (gdb_stdlog
, "target_disconnect (%s, %d)\n",
2720 t
->to_disconnect (t
, args
, from_tty
);
2728 target_wait (ptid_t ptid
, struct target_waitstatus
*status
, int options
)
2730 struct target_ops
*t
;
2731 ptid_t retval
= (current_target
.to_wait
) (¤t_target
, ptid
,
2736 char *status_string
;
2737 char *options_string
;
2739 status_string
= target_waitstatus_to_string (status
);
2740 options_string
= target_options_to_string (options
);
2741 fprintf_unfiltered (gdb_stdlog
,
2742 "target_wait (%d, status, options={%s})"
2744 ptid_get_pid (ptid
), options_string
,
2745 ptid_get_pid (retval
), status_string
);
2746 xfree (status_string
);
2747 xfree (options_string
);
2754 target_pid_to_str (ptid_t ptid
)
2756 struct target_ops
*t
;
2758 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2760 if (t
->to_pid_to_str
!= NULL
)
2761 return (*t
->to_pid_to_str
) (t
, ptid
);
2764 return normal_pid_to_str (ptid
);
2768 target_thread_name (struct thread_info
*info
)
2770 struct target_ops
*t
;
2772 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2774 if (t
->to_thread_name
!= NULL
)
2775 return (*t
->to_thread_name
) (t
, info
);
2782 target_resume (ptid_t ptid
, int step
, enum gdb_signal signal
)
2784 struct target_ops
*t
;
2786 target_dcache_invalidate ();
2788 current_target
.to_resume (¤t_target
, ptid
, step
, signal
);
2790 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n",
2791 ptid_get_pid (ptid
),
2792 step
? "step" : "continue",
2793 gdb_signal_to_name (signal
));
2795 registers_changed_ptid (ptid
);
2796 set_executing (ptid
, 1);
2797 set_running (ptid
, 1);
2798 clear_inline_frame_state (ptid
);
2802 target_pass_signals (int numsigs
, unsigned char *pass_signals
)
2804 struct target_ops
*t
;
2806 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2808 if (t
->to_pass_signals
!= NULL
)
2814 fprintf_unfiltered (gdb_stdlog
, "target_pass_signals (%d, {",
2817 for (i
= 0; i
< numsigs
; i
++)
2818 if (pass_signals
[i
])
2819 fprintf_unfiltered (gdb_stdlog
, " %s",
2820 gdb_signal_to_name (i
));
2822 fprintf_unfiltered (gdb_stdlog
, " })\n");
2825 (*t
->to_pass_signals
) (t
, numsigs
, pass_signals
);
2832 target_program_signals (int numsigs
, unsigned char *program_signals
)
2834 struct target_ops
*t
;
2836 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2838 if (t
->to_program_signals
!= NULL
)
2844 fprintf_unfiltered (gdb_stdlog
, "target_program_signals (%d, {",
2847 for (i
= 0; i
< numsigs
; i
++)
2848 if (program_signals
[i
])
2849 fprintf_unfiltered (gdb_stdlog
, " %s",
2850 gdb_signal_to_name (i
));
2852 fprintf_unfiltered (gdb_stdlog
, " })\n");
2855 (*t
->to_program_signals
) (t
, numsigs
, program_signals
);
2861 /* Look through the list of possible targets for a target that can
2865 target_follow_fork (int follow_child
, int detach_fork
)
2867 struct target_ops
*t
;
2869 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2871 if (t
->to_follow_fork
!= NULL
)
2873 int retval
= t
->to_follow_fork (t
, follow_child
, detach_fork
);
2876 fprintf_unfiltered (gdb_stdlog
,
2877 "target_follow_fork (%d, %d) = %d\n",
2878 follow_child
, detach_fork
, retval
);
2883 /* Some target returned a fork event, but did not know how to follow it. */
2884 internal_error (__FILE__
, __LINE__
,
2885 _("could not find a target to follow fork"));
2889 target_mourn_inferior (void)
2891 struct target_ops
*t
;
2893 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2895 if (t
->to_mourn_inferior
!= NULL
)
2897 t
->to_mourn_inferior (t
);
2899 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2901 /* We no longer need to keep handles on any of the object files.
2902 Make sure to release them to avoid unnecessarily locking any
2903 of them while we're not actually debugging. */
2904 bfd_cache_close_all ();
2910 internal_error (__FILE__
, __LINE__
,
2911 _("could not find a target to follow mourn inferior"));
2914 /* Look for a target which can describe architectural features, starting
2915 from TARGET. If we find one, return its description. */
2917 const struct target_desc
*
2918 target_read_description (struct target_ops
*target
)
2920 struct target_ops
*t
;
2922 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
2923 if (t
->to_read_description
!= NULL
)
2925 const struct target_desc
*tdesc
;
2927 tdesc
= t
->to_read_description (t
);
2935 /* The default implementation of to_search_memory.
2936 This implements a basic search of memory, reading target memory and
2937 performing the search here (as opposed to performing the search in on the
2938 target side with, for example, gdbserver). */
2941 simple_search_memory (struct target_ops
*ops
,
2942 CORE_ADDR start_addr
, ULONGEST search_space_len
,
2943 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2944 CORE_ADDR
*found_addrp
)
2946 /* NOTE: also defined in find.c testcase. */
2947 #define SEARCH_CHUNK_SIZE 16000
2948 const unsigned chunk_size
= SEARCH_CHUNK_SIZE
;
2949 /* Buffer to hold memory contents for searching. */
2950 gdb_byte
*search_buf
;
2951 unsigned search_buf_size
;
2952 struct cleanup
*old_cleanups
;
2954 search_buf_size
= chunk_size
+ pattern_len
- 1;
2956 /* No point in trying to allocate a buffer larger than the search space. */
2957 if (search_space_len
< search_buf_size
)
2958 search_buf_size
= search_space_len
;
2960 search_buf
= malloc (search_buf_size
);
2961 if (search_buf
== NULL
)
2962 error (_("Unable to allocate memory to perform the search."));
2963 old_cleanups
= make_cleanup (free_current_contents
, &search_buf
);
2965 /* Prime the search buffer. */
2967 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2968 search_buf
, start_addr
, search_buf_size
) != search_buf_size
)
2970 warning (_("Unable to access %s bytes of target "
2971 "memory at %s, halting search."),
2972 pulongest (search_buf_size
), hex_string (start_addr
));
2973 do_cleanups (old_cleanups
);
2977 /* Perform the search.
2979 The loop is kept simple by allocating [N + pattern-length - 1] bytes.
2980 When we've scanned N bytes we copy the trailing bytes to the start and
2981 read in another N bytes. */
2983 while (search_space_len
>= pattern_len
)
2985 gdb_byte
*found_ptr
;
2986 unsigned nr_search_bytes
= min (search_space_len
, search_buf_size
);
2988 found_ptr
= memmem (search_buf
, nr_search_bytes
,
2989 pattern
, pattern_len
);
2991 if (found_ptr
!= NULL
)
2993 CORE_ADDR found_addr
= start_addr
+ (found_ptr
- search_buf
);
2995 *found_addrp
= found_addr
;
2996 do_cleanups (old_cleanups
);
3000 /* Not found in this chunk, skip to next chunk. */
3002 /* Don't let search_space_len wrap here, it's unsigned. */
3003 if (search_space_len
>= chunk_size
)
3004 search_space_len
-= chunk_size
;
3006 search_space_len
= 0;
3008 if (search_space_len
>= pattern_len
)
3010 unsigned keep_len
= search_buf_size
- chunk_size
;
3011 CORE_ADDR read_addr
= start_addr
+ chunk_size
+ keep_len
;
3014 /* Copy the trailing part of the previous iteration to the front
3015 of the buffer for the next iteration. */
3016 gdb_assert (keep_len
== pattern_len
- 1);
3017 memcpy (search_buf
, search_buf
+ chunk_size
, keep_len
);
3019 nr_to_read
= min (search_space_len
- keep_len
, chunk_size
);
3021 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
3022 search_buf
+ keep_len
, read_addr
,
3023 nr_to_read
) != nr_to_read
)
3025 warning (_("Unable to access %s bytes of target "
3026 "memory at %s, halting search."),
3027 plongest (nr_to_read
),
3028 hex_string (read_addr
));
3029 do_cleanups (old_cleanups
);
3033 start_addr
+= chunk_size
;
3039 do_cleanups (old_cleanups
);
3043 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
3044 sequence of bytes in PATTERN with length PATTERN_LEN.
3046 The result is 1 if found, 0 if not found, and -1 if there was an error
3047 requiring halting of the search (e.g. memory read error).
3048 If the pattern is found the address is recorded in FOUND_ADDRP. */
3051 target_search_memory (CORE_ADDR start_addr
, ULONGEST search_space_len
,
3052 const gdb_byte
*pattern
, ULONGEST pattern_len
,
3053 CORE_ADDR
*found_addrp
)
3055 struct target_ops
*t
;
3058 /* We don't use INHERIT to set current_target.to_search_memory,
3059 so we have to scan the target stack and handle targetdebug
3063 fprintf_unfiltered (gdb_stdlog
, "target_search_memory (%s, ...)\n",
3064 hex_string (start_addr
));
3066 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3067 if (t
->to_search_memory
!= NULL
)
3072 found
= t
->to_search_memory (t
, start_addr
, search_space_len
,
3073 pattern
, pattern_len
, found_addrp
);
3077 /* If a special version of to_search_memory isn't available, use the
3079 found
= simple_search_memory (current_target
.beneath
,
3080 start_addr
, search_space_len
,
3081 pattern
, pattern_len
, found_addrp
);
3085 fprintf_unfiltered (gdb_stdlog
, " = %d\n", found
);
3090 /* Look through the currently pushed targets. If none of them will
3091 be able to restart the currently running process, issue an error
3095 target_require_runnable (void)
3097 struct target_ops
*t
;
3099 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
3101 /* If this target knows how to create a new program, then
3102 assume we will still be able to after killing the current
3103 one. Either killing and mourning will not pop T, or else
3104 find_default_run_target will find it again. */
3105 if (t
->to_create_inferior
!= NULL
)
3108 /* Do not worry about thread_stratum targets that can not
3109 create inferiors. Assume they will be pushed again if
3110 necessary, and continue to the process_stratum. */
3111 if (t
->to_stratum
== thread_stratum
3112 || t
->to_stratum
== arch_stratum
)
3115 error (_("The \"%s\" target does not support \"run\". "
3116 "Try \"help target\" or \"continue\"."),
3120 /* This function is only called if the target is running. In that
3121 case there should have been a process_stratum target and it
3122 should either know how to create inferiors, or not... */
3123 internal_error (__FILE__
, __LINE__
, _("No targets found"));
3126 /* Look through the list of possible targets for a target that can
3127 execute a run or attach command without any other data. This is
3128 used to locate the default process stratum.
3130 If DO_MESG is not NULL, the result is always valid (error() is
3131 called for errors); else, return NULL on error. */
3133 static struct target_ops
*
3134 find_default_run_target (char *do_mesg
)
3136 struct target_ops
**t
;
3137 struct target_ops
*runable
= NULL
;
3142 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
3145 if ((*t
)->to_can_run
&& target_can_run (*t
))
3155 error (_("Don't know how to %s. Try \"help target\"."), do_mesg
);
3164 find_default_attach (struct target_ops
*ops
, char *args
, int from_tty
)
3166 struct target_ops
*t
;
3168 t
= find_default_run_target ("attach");
3169 (t
->to_attach
) (t
, args
, from_tty
);
3174 find_default_create_inferior (struct target_ops
*ops
,
3175 char *exec_file
, char *allargs
, char **env
,
3178 struct target_ops
*t
;
3180 t
= find_default_run_target ("run");
3181 (t
->to_create_inferior
) (t
, exec_file
, allargs
, env
, from_tty
);
3186 find_default_can_async_p (struct target_ops
*ignore
)
3188 struct target_ops
*t
;
3190 /* This may be called before the target is pushed on the stack;
3191 look for the default process stratum. If there's none, gdb isn't
3192 configured with a native debugger, and target remote isn't
3194 t
= find_default_run_target (NULL
);
3195 if (t
&& t
->to_can_async_p
!= delegate_can_async_p
)
3196 return (t
->to_can_async_p
) (t
);
3201 find_default_is_async_p (struct target_ops
*ignore
)
3203 struct target_ops
*t
;
3205 /* This may be called before the target is pushed on the stack;
3206 look for the default process stratum. If there's none, gdb isn't
3207 configured with a native debugger, and target remote isn't
3209 t
= find_default_run_target (NULL
);
3210 if (t
&& t
->to_is_async_p
!= delegate_is_async_p
)
3211 return (t
->to_is_async_p
) (t
);
3216 find_default_supports_non_stop (struct target_ops
*self
)
3218 struct target_ops
*t
;
3220 t
= find_default_run_target (NULL
);
3221 if (t
&& t
->to_supports_non_stop
)
3222 return (t
->to_supports_non_stop
) (t
);
3227 target_supports_non_stop (void)
3229 struct target_ops
*t
;
3231 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3232 if (t
->to_supports_non_stop
)
3233 return t
->to_supports_non_stop (t
);
3238 /* Implement the "info proc" command. */
3241 target_info_proc (char *args
, enum info_proc_what what
)
3243 struct target_ops
*t
;
3245 /* If we're already connected to something that can get us OS
3246 related data, use it. Otherwise, try using the native
3248 if (current_target
.to_stratum
>= process_stratum
)
3249 t
= current_target
.beneath
;
3251 t
= find_default_run_target (NULL
);
3253 for (; t
!= NULL
; t
= t
->beneath
)
3255 if (t
->to_info_proc
!= NULL
)
3257 t
->to_info_proc (t
, args
, what
);
3260 fprintf_unfiltered (gdb_stdlog
,
3261 "target_info_proc (\"%s\", %d)\n", args
, what
);
3271 find_default_supports_disable_randomization (struct target_ops
*self
)
3273 struct target_ops
*t
;
3275 t
= find_default_run_target (NULL
);
3276 if (t
&& t
->to_supports_disable_randomization
)
3277 return (t
->to_supports_disable_randomization
) (t
);
3282 target_supports_disable_randomization (void)
3284 struct target_ops
*t
;
3286 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3287 if (t
->to_supports_disable_randomization
)
3288 return t
->to_supports_disable_randomization (t
);
3294 target_get_osdata (const char *type
)
3296 struct target_ops
*t
;
3298 /* If we're already connected to something that can get us OS
3299 related data, use it. Otherwise, try using the native
3301 if (current_target
.to_stratum
>= process_stratum
)
3302 t
= current_target
.beneath
;
3304 t
= find_default_run_target ("get OS data");
3309 return target_read_stralloc (t
, TARGET_OBJECT_OSDATA
, type
);
3312 /* Determine the current address space of thread PTID. */
3314 struct address_space
*
3315 target_thread_address_space (ptid_t ptid
)
3317 struct address_space
*aspace
;
3318 struct inferior
*inf
;
3319 struct target_ops
*t
;
3321 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3323 if (t
->to_thread_address_space
!= NULL
)
3325 aspace
= t
->to_thread_address_space (t
, ptid
);
3326 gdb_assert (aspace
);
3329 fprintf_unfiltered (gdb_stdlog
,
3330 "target_thread_address_space (%s) = %d\n",
3331 target_pid_to_str (ptid
),
3332 address_space_num (aspace
));
3337 /* Fall-back to the "main" address space of the inferior. */
3338 inf
= find_inferior_pid (ptid_get_pid (ptid
));
3340 if (inf
== NULL
|| inf
->aspace
== NULL
)
3341 internal_error (__FILE__
, __LINE__
,
3342 _("Can't determine the current "
3343 "address space of thread %s\n"),
3344 target_pid_to_str (ptid
));
3350 /* Target file operations. */
3352 static struct target_ops
*
3353 default_fileio_target (void)
3355 /* If we're already connected to something that can perform
3356 file I/O, use it. Otherwise, try using the native target. */
3357 if (current_target
.to_stratum
>= process_stratum
)
3358 return current_target
.beneath
;
3360 return find_default_run_target ("file I/O");
3363 /* Open FILENAME on the target, using FLAGS and MODE. Return a
3364 target file descriptor, or -1 if an error occurs (and set
3367 target_fileio_open (const char *filename
, int flags
, int mode
,
3370 struct target_ops
*t
;
3372 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3374 if (t
->to_fileio_open
!= NULL
)
3376 int fd
= t
->to_fileio_open (t
, filename
, flags
, mode
, target_errno
);
3379 fprintf_unfiltered (gdb_stdlog
,
3380 "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n",
3381 filename
, flags
, mode
,
3382 fd
, fd
!= -1 ? 0 : *target_errno
);
3387 *target_errno
= FILEIO_ENOSYS
;
3391 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
3392 Return the number of bytes written, or -1 if an error occurs
3393 (and set *TARGET_ERRNO). */
3395 target_fileio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
3396 ULONGEST offset
, int *target_errno
)
3398 struct target_ops
*t
;
3400 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3402 if (t
->to_fileio_pwrite
!= NULL
)
3404 int ret
= t
->to_fileio_pwrite (t
, fd
, write_buf
, len
, offset
,
3408 fprintf_unfiltered (gdb_stdlog
,
3409 "target_fileio_pwrite (%d,...,%d,%s) "
3411 fd
, len
, pulongest (offset
),
3412 ret
, ret
!= -1 ? 0 : *target_errno
);
3417 *target_errno
= FILEIO_ENOSYS
;
3421 /* Read up to LEN bytes FD on the target into READ_BUF.
3422 Return the number of bytes read, or -1 if an error occurs
3423 (and set *TARGET_ERRNO). */
3425 target_fileio_pread (int fd
, gdb_byte
*read_buf
, int len
,
3426 ULONGEST offset
, int *target_errno
)
3428 struct target_ops
*t
;
3430 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3432 if (t
->to_fileio_pread
!= NULL
)
3434 int ret
= t
->to_fileio_pread (t
, fd
, read_buf
, len
, offset
,
3438 fprintf_unfiltered (gdb_stdlog
,
3439 "target_fileio_pread (%d,...,%d,%s) "
3441 fd
, len
, pulongest (offset
),
3442 ret
, ret
!= -1 ? 0 : *target_errno
);
3447 *target_errno
= FILEIO_ENOSYS
;
3451 /* Close FD on the target. Return 0, or -1 if an error occurs
3452 (and set *TARGET_ERRNO). */
3454 target_fileio_close (int fd
, int *target_errno
)
3456 struct target_ops
*t
;
3458 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3460 if (t
->to_fileio_close
!= NULL
)
3462 int ret
= t
->to_fileio_close (t
, fd
, target_errno
);
3465 fprintf_unfiltered (gdb_stdlog
,
3466 "target_fileio_close (%d) = %d (%d)\n",
3467 fd
, ret
, ret
!= -1 ? 0 : *target_errno
);
3472 *target_errno
= FILEIO_ENOSYS
;
3476 /* Unlink FILENAME on the target. Return 0, or -1 if an error
3477 occurs (and set *TARGET_ERRNO). */
3479 target_fileio_unlink (const char *filename
, int *target_errno
)
3481 struct target_ops
*t
;
3483 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3485 if (t
->to_fileio_unlink
!= NULL
)
3487 int ret
= t
->to_fileio_unlink (t
, filename
, target_errno
);
3490 fprintf_unfiltered (gdb_stdlog
,
3491 "target_fileio_unlink (%s) = %d (%d)\n",
3492 filename
, ret
, ret
!= -1 ? 0 : *target_errno
);
3497 *target_errno
= FILEIO_ENOSYS
;
3501 /* Read value of symbolic link FILENAME on the target. Return a
3502 null-terminated string allocated via xmalloc, or NULL if an error
3503 occurs (and set *TARGET_ERRNO). */
3505 target_fileio_readlink (const char *filename
, int *target_errno
)
3507 struct target_ops
*t
;
3509 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3511 if (t
->to_fileio_readlink
!= NULL
)
3513 char *ret
= t
->to_fileio_readlink (t
, filename
, target_errno
);
3516 fprintf_unfiltered (gdb_stdlog
,
3517 "target_fileio_readlink (%s) = %s (%d)\n",
3518 filename
, ret
? ret
: "(nil)",
3519 ret
? 0 : *target_errno
);
3524 *target_errno
= FILEIO_ENOSYS
;
3529 target_fileio_close_cleanup (void *opaque
)
3531 int fd
= *(int *) opaque
;
3534 target_fileio_close (fd
, &target_errno
);
3537 /* Read target file FILENAME. Store the result in *BUF_P and
3538 return the size of the transferred data. PADDING additional bytes are
3539 available in *BUF_P. This is a helper function for
3540 target_fileio_read_alloc; see the declaration of that function for more
3544 target_fileio_read_alloc_1 (const char *filename
,
3545 gdb_byte
**buf_p
, int padding
)
3547 struct cleanup
*close_cleanup
;
3548 size_t buf_alloc
, buf_pos
;
3554 fd
= target_fileio_open (filename
, FILEIO_O_RDONLY
, 0700, &target_errno
);
3558 close_cleanup
= make_cleanup (target_fileio_close_cleanup
, &fd
);
3560 /* Start by reading up to 4K at a time. The target will throttle
3561 this number down if necessary. */
3563 buf
= xmalloc (buf_alloc
);
3567 n
= target_fileio_pread (fd
, &buf
[buf_pos
],
3568 buf_alloc
- buf_pos
- padding
, buf_pos
,
3572 /* An error occurred. */
3573 do_cleanups (close_cleanup
);
3579 /* Read all there was. */
3580 do_cleanups (close_cleanup
);
3590 /* If the buffer is filling up, expand it. */
3591 if (buf_alloc
< buf_pos
* 2)
3594 buf
= xrealloc (buf
, buf_alloc
);
3601 /* Read target file FILENAME. Store the result in *BUF_P and return
3602 the size of the transferred data. See the declaration in "target.h"
3603 function for more information about the return value. */
3606 target_fileio_read_alloc (const char *filename
, gdb_byte
**buf_p
)
3608 return target_fileio_read_alloc_1 (filename
, buf_p
, 0);
3611 /* Read target file FILENAME. The result is NUL-terminated and
3612 returned as a string, allocated using xmalloc. If an error occurs
3613 or the transfer is unsupported, NULL is returned. Empty objects
3614 are returned as allocated but empty strings. A warning is issued
3615 if the result contains any embedded NUL bytes. */
3618 target_fileio_read_stralloc (const char *filename
)
3622 LONGEST i
, transferred
;
3624 transferred
= target_fileio_read_alloc_1 (filename
, &buffer
, 1);
3625 bufstr
= (char *) buffer
;
3627 if (transferred
< 0)
3630 if (transferred
== 0)
3631 return xstrdup ("");
3633 bufstr
[transferred
] = 0;
3635 /* Check for embedded NUL bytes; but allow trailing NULs. */
3636 for (i
= strlen (bufstr
); i
< transferred
; i
++)
3639 warning (_("target file %s "
3640 "contained unexpected null characters"),
3650 default_region_ok_for_hw_watchpoint (struct target_ops
*self
,
3651 CORE_ADDR addr
, int len
)
3653 return (len
<= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT
);
3657 default_watchpoint_addr_within_range (struct target_ops
*target
,
3659 CORE_ADDR start
, int length
)
3661 return addr
>= start
&& addr
< start
+ length
;
3664 static struct gdbarch
*
3665 default_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
3667 return target_gdbarch ();
3683 return_minus_one (void)
3695 * Find the next target down the stack from the specified target.
3699 find_target_beneath (struct target_ops
*t
)
3707 find_target_at (enum strata stratum
)
3709 struct target_ops
*t
;
3711 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3712 if (t
->to_stratum
== stratum
)
3719 /* The inferior process has died. Long live the inferior! */
3722 generic_mourn_inferior (void)
3726 ptid
= inferior_ptid
;
3727 inferior_ptid
= null_ptid
;
3729 /* Mark breakpoints uninserted in case something tries to delete a
3730 breakpoint while we delete the inferior's threads (which would
3731 fail, since the inferior is long gone). */
3732 mark_breakpoints_out ();
3734 if (!ptid_equal (ptid
, null_ptid
))
3736 int pid
= ptid_get_pid (ptid
);
3737 exit_inferior (pid
);
3740 /* Note this wipes step-resume breakpoints, so needs to be done
3741 after exit_inferior, which ends up referencing the step-resume
3742 breakpoints through clear_thread_inferior_resources. */
3743 breakpoint_init_inferior (inf_exited
);
3745 registers_changed ();
3747 reopen_exec_file ();
3748 reinit_frame_cache ();
3750 if (deprecated_detach_hook
)
3751 deprecated_detach_hook ();
3754 /* Convert a normal process ID to a string. Returns the string in a
3758 normal_pid_to_str (ptid_t ptid
)
3760 static char buf
[32];
3762 xsnprintf (buf
, sizeof buf
, "process %d", ptid_get_pid (ptid
));
3767 dummy_pid_to_str (struct target_ops
*ops
, ptid_t ptid
)
3769 return normal_pid_to_str (ptid
);
3772 /* Error-catcher for target_find_memory_regions. */
3774 dummy_find_memory_regions (struct target_ops
*self
,
3775 find_memory_region_ftype ignore1
, void *ignore2
)
3777 error (_("Command not implemented for this target."));
3781 /* Error-catcher for target_make_corefile_notes. */
3783 dummy_make_corefile_notes (struct target_ops
*self
,
3784 bfd
*ignore1
, int *ignore2
)
3786 error (_("Command not implemented for this target."));
3790 /* Error-catcher for target_get_bookmark. */
3792 dummy_get_bookmark (struct target_ops
*self
, char *ignore1
, int ignore2
)
3798 /* Error-catcher for target_goto_bookmark. */
3800 dummy_goto_bookmark (struct target_ops
*self
, gdb_byte
*ignore
, int from_tty
)
3805 /* Set up the handful of non-empty slots needed by the dummy target
3809 init_dummy_target (void)
3811 dummy_target
.to_shortname
= "None";
3812 dummy_target
.to_longname
= "None";
3813 dummy_target
.to_doc
= "";
3814 dummy_target
.to_attach
= find_default_attach
;
3815 dummy_target
.to_detach
=
3816 (void (*)(struct target_ops
*, const char *, int))target_ignore
;
3817 dummy_target
.to_create_inferior
= find_default_create_inferior
;
3818 dummy_target
.to_supports_non_stop
= find_default_supports_non_stop
;
3819 dummy_target
.to_supports_disable_randomization
3820 = find_default_supports_disable_randomization
;
3821 dummy_target
.to_pid_to_str
= dummy_pid_to_str
;
3822 dummy_target
.to_stratum
= dummy_stratum
;
3823 dummy_target
.to_find_memory_regions
= dummy_find_memory_regions
;
3824 dummy_target
.to_make_corefile_notes
= dummy_make_corefile_notes
;
3825 dummy_target
.to_get_bookmark
= dummy_get_bookmark
;
3826 dummy_target
.to_goto_bookmark
= dummy_goto_bookmark
;
3827 dummy_target
.to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
3828 dummy_target
.to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
3829 dummy_target
.to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
3830 dummy_target
.to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
3831 dummy_target
.to_has_execution
3832 = (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
3833 dummy_target
.to_magic
= OPS_MAGIC
;
3835 install_dummy_methods (&dummy_target
);
3839 debug_to_open (char *args
, int from_tty
)
3841 debug_target
.to_open (args
, from_tty
);
3843 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
3847 target_close (struct target_ops
*targ
)
3849 gdb_assert (!target_is_pushed (targ
));
3851 if (targ
->to_xclose
!= NULL
)
3852 targ
->to_xclose (targ
);
3853 else if (targ
->to_close
!= NULL
)
3854 targ
->to_close (targ
);
3857 fprintf_unfiltered (gdb_stdlog
, "target_close ()\n");
3861 target_attach (char *args
, int from_tty
)
3863 struct target_ops
*t
;
3865 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3867 if (t
->to_attach
!= NULL
)
3869 t
->to_attach (t
, args
, from_tty
);
3871 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n",
3877 internal_error (__FILE__
, __LINE__
,
3878 _("could not find a target to attach"));
3882 target_thread_alive (ptid_t ptid
)
3884 struct target_ops
*t
;
3886 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3888 if (t
->to_thread_alive
!= NULL
)
3892 retval
= t
->to_thread_alive (t
, ptid
);
3894 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
3895 ptid_get_pid (ptid
), retval
);
3905 target_find_new_threads (void)
3907 struct target_ops
*t
;
3909 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3911 if (t
->to_find_new_threads
!= NULL
)
3913 t
->to_find_new_threads (t
);
3915 fprintf_unfiltered (gdb_stdlog
, "target_find_new_threads ()\n");
3923 target_stop (ptid_t ptid
)
3927 warning (_("May not interrupt or stop the target, ignoring attempt"));
3931 (*current_target
.to_stop
) (¤t_target
, ptid
);
3935 debug_to_post_attach (struct target_ops
*self
, int pid
)
3937 debug_target
.to_post_attach (&debug_target
, pid
);
3939 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
3942 /* Concatenate ELEM to LIST, a comma separate list, and return the
3943 result. The LIST incoming argument is released. */
3946 str_comma_list_concat_elem (char *list
, const char *elem
)
3949 return xstrdup (elem
);
3951 return reconcat (list
, list
, ", ", elem
, (char *) NULL
);
3954 /* Helper for target_options_to_string. If OPT is present in
3955 TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET.
3956 Returns the new resulting string. OPT is removed from
3960 do_option (int *target_options
, char *ret
,
3961 int opt
, char *opt_str
)
3963 if ((*target_options
& opt
) != 0)
3965 ret
= str_comma_list_concat_elem (ret
, opt_str
);
3966 *target_options
&= ~opt
;
3973 target_options_to_string (int target_options
)
3977 #define DO_TARG_OPTION(OPT) \
3978 ret = do_option (&target_options, ret, OPT, #OPT)
3980 DO_TARG_OPTION (TARGET_WNOHANG
);
3982 if (target_options
!= 0)
3983 ret
= str_comma_list_concat_elem (ret
, "unknown???");
3991 debug_print_register (const char * func
,
3992 struct regcache
*regcache
, int regno
)
3994 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
3996 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
3997 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
)
3998 && gdbarch_register_name (gdbarch
, regno
) != NULL
3999 && gdbarch_register_name (gdbarch
, regno
)[0] != '\0')
4000 fprintf_unfiltered (gdb_stdlog
, "(%s)",
4001 gdbarch_register_name (gdbarch
, regno
));
4003 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
4004 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
))
4006 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
4007 int i
, size
= register_size (gdbarch
, regno
);
4008 gdb_byte buf
[MAX_REGISTER_SIZE
];
4010 regcache_raw_collect (regcache
, regno
, buf
);
4011 fprintf_unfiltered (gdb_stdlog
, " = ");
4012 for (i
= 0; i
< size
; i
++)
4014 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
4016 if (size
<= sizeof (LONGEST
))
4018 ULONGEST val
= extract_unsigned_integer (buf
, size
, byte_order
);
4020 fprintf_unfiltered (gdb_stdlog
, " %s %s",
4021 core_addr_to_string_nz (val
), plongest (val
));
4024 fprintf_unfiltered (gdb_stdlog
, "\n");
4028 target_fetch_registers (struct regcache
*regcache
, int regno
)
4030 struct target_ops
*t
;
4032 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4034 if (t
->to_fetch_registers
!= NULL
)
4036 t
->to_fetch_registers (t
, regcache
, regno
);
4038 debug_print_register ("target_fetch_registers", regcache
, regno
);
4045 target_store_registers (struct regcache
*regcache
, int regno
)
4047 struct target_ops
*t
;
4049 if (!may_write_registers
)
4050 error (_("Writing to registers is not allowed (regno %d)"), regno
);
4052 current_target
.to_store_registers (¤t_target
, regcache
, regno
);
4055 debug_print_register ("target_store_registers", regcache
, regno
);
4060 target_core_of_thread (ptid_t ptid
)
4062 struct target_ops
*t
;
4064 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4066 if (t
->to_core_of_thread
!= NULL
)
4068 int retval
= t
->to_core_of_thread (t
, ptid
);
4071 fprintf_unfiltered (gdb_stdlog
,
4072 "target_core_of_thread (%d) = %d\n",
4073 ptid_get_pid (ptid
), retval
);
4082 target_verify_memory (const gdb_byte
*data
, CORE_ADDR memaddr
, ULONGEST size
)
4084 struct target_ops
*t
;
4086 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4088 if (t
->to_verify_memory
!= NULL
)
4090 int retval
= t
->to_verify_memory (t
, data
, memaddr
, size
);
4093 fprintf_unfiltered (gdb_stdlog
,
4094 "target_verify_memory (%s, %s) = %d\n",
4095 paddress (target_gdbarch (), memaddr
),
4105 /* The documentation for this function is in its prototype declaration in
4109 target_insert_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4111 struct target_ops
*t
;
4113 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4114 if (t
->to_insert_mask_watchpoint
!= NULL
)
4118 ret
= t
->to_insert_mask_watchpoint (t
, addr
, mask
, rw
);
4121 fprintf_unfiltered (gdb_stdlog
, "\
4122 target_insert_mask_watchpoint (%s, %s, %d) = %d\n",
4123 core_addr_to_string (addr
),
4124 core_addr_to_string (mask
), rw
, ret
);
4132 /* The documentation for this function is in its prototype declaration in
4136 target_remove_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4138 struct target_ops
*t
;
4140 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4141 if (t
->to_remove_mask_watchpoint
!= NULL
)
4145 ret
= t
->to_remove_mask_watchpoint (t
, addr
, mask
, rw
);
4148 fprintf_unfiltered (gdb_stdlog
, "\
4149 target_remove_mask_watchpoint (%s, %s, %d) = %d\n",
4150 core_addr_to_string (addr
),
4151 core_addr_to_string (mask
), rw
, ret
);
4159 /* The documentation for this function is in its prototype declaration
4163 target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
)
4165 struct target_ops
*t
;
4167 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4168 if (t
->to_masked_watch_num_registers
!= NULL
)
4169 return t
->to_masked_watch_num_registers (t
, addr
, mask
);
4174 /* The documentation for this function is in its prototype declaration
4178 target_ranged_break_num_registers (void)
4180 struct target_ops
*t
;
4182 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4183 if (t
->to_ranged_break_num_registers
!= NULL
)
4184 return t
->to_ranged_break_num_registers (t
);
4191 struct btrace_target_info
*
4192 target_enable_btrace (ptid_t ptid
)
4194 struct target_ops
*t
;
4196 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4197 if (t
->to_enable_btrace
!= NULL
)
4198 return t
->to_enable_btrace (ptid
);
4207 target_disable_btrace (struct btrace_target_info
*btinfo
)
4209 struct target_ops
*t
;
4211 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4212 if (t
->to_disable_btrace
!= NULL
)
4214 t
->to_disable_btrace (btinfo
);
4224 target_teardown_btrace (struct btrace_target_info
*btinfo
)
4226 struct target_ops
*t
;
4228 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4229 if (t
->to_teardown_btrace
!= NULL
)
4231 t
->to_teardown_btrace (btinfo
);
4241 target_read_btrace (VEC (btrace_block_s
) **btrace
,
4242 struct btrace_target_info
*btinfo
,
4243 enum btrace_read_type type
)
4245 struct target_ops
*t
;
4247 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4248 if (t
->to_read_btrace
!= NULL
)
4249 return t
->to_read_btrace (btrace
, btinfo
, type
);
4252 return BTRACE_ERR_NOT_SUPPORTED
;
4258 target_stop_recording (void)
4260 struct target_ops
*t
;
4262 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4263 if (t
->to_stop_recording
!= NULL
)
4265 t
->to_stop_recording ();
4269 /* This is optional. */
4275 target_info_record (void)
4277 struct target_ops
*t
;
4279 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4280 if (t
->to_info_record
!= NULL
)
4282 t
->to_info_record ();
4292 target_save_record (const char *filename
)
4294 struct target_ops
*t
;
4296 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4297 if (t
->to_save_record
!= NULL
)
4299 t
->to_save_record (filename
);
4309 target_supports_delete_record (void)
4311 struct target_ops
*t
;
4313 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4314 if (t
->to_delete_record
!= NULL
)
4323 target_delete_record (void)
4325 struct target_ops
*t
;
4327 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4328 if (t
->to_delete_record
!= NULL
)
4330 t
->to_delete_record ();
4340 target_record_is_replaying (void)
4342 struct target_ops
*t
;
4344 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4345 if (t
->to_record_is_replaying
!= NULL
)
4346 return t
->to_record_is_replaying ();
4354 target_goto_record_begin (void)
4356 struct target_ops
*t
;
4358 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4359 if (t
->to_goto_record_begin
!= NULL
)
4361 t
->to_goto_record_begin ();
4371 target_goto_record_end (void)
4373 struct target_ops
*t
;
4375 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4376 if (t
->to_goto_record_end
!= NULL
)
4378 t
->to_goto_record_end ();
4388 target_goto_record (ULONGEST insn
)
4390 struct target_ops
*t
;
4392 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4393 if (t
->to_goto_record
!= NULL
)
4395 t
->to_goto_record (insn
);
4405 target_insn_history (int size
, int flags
)
4407 struct target_ops
*t
;
4409 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4410 if (t
->to_insn_history
!= NULL
)
4412 t
->to_insn_history (size
, flags
);
4422 target_insn_history_from (ULONGEST from
, int size
, int flags
)
4424 struct target_ops
*t
;
4426 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4427 if (t
->to_insn_history_from
!= NULL
)
4429 t
->to_insn_history_from (from
, size
, flags
);
4439 target_insn_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4441 struct target_ops
*t
;
4443 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4444 if (t
->to_insn_history_range
!= NULL
)
4446 t
->to_insn_history_range (begin
, end
, flags
);
4456 target_call_history (int size
, int flags
)
4458 struct target_ops
*t
;
4460 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4461 if (t
->to_call_history
!= NULL
)
4463 t
->to_call_history (size
, flags
);
4473 target_call_history_from (ULONGEST begin
, int size
, int flags
)
4475 struct target_ops
*t
;
4477 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4478 if (t
->to_call_history_from
!= NULL
)
4480 t
->to_call_history_from (begin
, size
, flags
);
4490 target_call_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4492 struct target_ops
*t
;
4494 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4495 if (t
->to_call_history_range
!= NULL
)
4497 t
->to_call_history_range (begin
, end
, flags
);
4505 debug_to_prepare_to_store (struct target_ops
*self
, struct regcache
*regcache
)
4507 debug_target
.to_prepare_to_store (&debug_target
, regcache
);
4509 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
4514 const struct frame_unwind
*
4515 target_get_unwinder (void)
4517 struct target_ops
*t
;
4519 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4520 if (t
->to_get_unwinder
!= NULL
)
4521 return t
->to_get_unwinder
;
4528 const struct frame_unwind
*
4529 target_get_tailcall_unwinder (void)
4531 struct target_ops
*t
;
4533 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4534 if (t
->to_get_tailcall_unwinder
!= NULL
)
4535 return t
->to_get_tailcall_unwinder
;
4543 forward_target_decr_pc_after_break (struct target_ops
*ops
,
4544 struct gdbarch
*gdbarch
)
4546 for (; ops
!= NULL
; ops
= ops
->beneath
)
4547 if (ops
->to_decr_pc_after_break
!= NULL
)
4548 return ops
->to_decr_pc_after_break (ops
, gdbarch
);
4550 return gdbarch_decr_pc_after_break (gdbarch
);
4556 target_decr_pc_after_break (struct gdbarch
*gdbarch
)
4558 return forward_target_decr_pc_after_break (current_target
.beneath
, gdbarch
);
4562 deprecated_debug_xfer_memory (CORE_ADDR memaddr
, bfd_byte
*myaddr
, int len
,
4563 int write
, struct mem_attrib
*attrib
,
4564 struct target_ops
*target
)
4568 retval
= debug_target
.deprecated_xfer_memory (memaddr
, myaddr
, len
, write
,
4571 fprintf_unfiltered (gdb_stdlog
,
4572 "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d",
4573 paddress (target_gdbarch (), memaddr
), len
,
4574 write
? "write" : "read", retval
);
4580 fputs_unfiltered (", bytes =", gdb_stdlog
);
4581 for (i
= 0; i
< retval
; i
++)
4583 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
4585 if (targetdebug
< 2 && i
> 0)
4587 fprintf_unfiltered (gdb_stdlog
, " ...");
4590 fprintf_unfiltered (gdb_stdlog
, "\n");
4593 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
4597 fputc_unfiltered ('\n', gdb_stdlog
);
4603 debug_to_files_info (struct target_ops
*target
)
4605 debug_target
.to_files_info (target
);
4607 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
4611 debug_to_insert_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4612 struct bp_target_info
*bp_tgt
)
4616 retval
= debug_target
.to_insert_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4618 fprintf_unfiltered (gdb_stdlog
,
4619 "target_insert_breakpoint (%s, xxx) = %ld\n",
4620 core_addr_to_string (bp_tgt
->placed_address
),
4621 (unsigned long) retval
);
4626 debug_to_remove_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4627 struct bp_target_info
*bp_tgt
)
4631 retval
= debug_target
.to_remove_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4633 fprintf_unfiltered (gdb_stdlog
,
4634 "target_remove_breakpoint (%s, xxx) = %ld\n",
4635 core_addr_to_string (bp_tgt
->placed_address
),
4636 (unsigned long) retval
);
4641 debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
4642 int type
, int cnt
, int from_tty
)
4646 retval
= debug_target
.to_can_use_hw_breakpoint (&debug_target
,
4647 type
, cnt
, from_tty
);
4649 fprintf_unfiltered (gdb_stdlog
,
4650 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
4651 (unsigned long) type
,
4652 (unsigned long) cnt
,
4653 (unsigned long) from_tty
,
4654 (unsigned long) retval
);
4659 debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
4660 CORE_ADDR addr
, int len
)
4664 retval
= debug_target
.to_region_ok_for_hw_watchpoint (&debug_target
,
4667 fprintf_unfiltered (gdb_stdlog
,
4668 "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n",
4669 core_addr_to_string (addr
), (unsigned long) len
,
4670 core_addr_to_string (retval
));
4675 debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
4676 CORE_ADDR addr
, int len
, int rw
,
4677 struct expression
*cond
)
4681 retval
= debug_target
.to_can_accel_watchpoint_condition (&debug_target
,
4685 fprintf_unfiltered (gdb_stdlog
,
4686 "target_can_accel_watchpoint_condition "
4687 "(%s, %d, %d, %s) = %ld\n",
4688 core_addr_to_string (addr
), len
, rw
,
4689 host_address_to_string (cond
), (unsigned long) retval
);
4694 debug_to_stopped_by_watchpoint (struct target_ops
*ops
)
4698 retval
= debug_target
.to_stopped_by_watchpoint (&debug_target
);
4700 fprintf_unfiltered (gdb_stdlog
,
4701 "target_stopped_by_watchpoint () = %ld\n",
4702 (unsigned long) retval
);
4707 debug_to_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr
)
4711 retval
= debug_target
.to_stopped_data_address (target
, addr
);
4713 fprintf_unfiltered (gdb_stdlog
,
4714 "target_stopped_data_address ([%s]) = %ld\n",
4715 core_addr_to_string (*addr
),
4716 (unsigned long)retval
);
4721 debug_to_watchpoint_addr_within_range (struct target_ops
*target
,
4723 CORE_ADDR start
, int length
)
4727 retval
= debug_target
.to_watchpoint_addr_within_range (target
, addr
,
4730 fprintf_filtered (gdb_stdlog
,
4731 "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n",
4732 core_addr_to_string (addr
), core_addr_to_string (start
),
4738 debug_to_insert_hw_breakpoint (struct target_ops
*self
,
4739 struct gdbarch
*gdbarch
,
4740 struct bp_target_info
*bp_tgt
)
4744 retval
= debug_target
.to_insert_hw_breakpoint (&debug_target
,
4747 fprintf_unfiltered (gdb_stdlog
,
4748 "target_insert_hw_breakpoint (%s, xxx) = %ld\n",
4749 core_addr_to_string (bp_tgt
->placed_address
),
4750 (unsigned long) retval
);
4755 debug_to_remove_hw_breakpoint (struct target_ops
*self
,
4756 struct gdbarch
*gdbarch
,
4757 struct bp_target_info
*bp_tgt
)
4761 retval
= debug_target
.to_remove_hw_breakpoint (&debug_target
,
4764 fprintf_unfiltered (gdb_stdlog
,
4765 "target_remove_hw_breakpoint (%s, xxx) = %ld\n",
4766 core_addr_to_string (bp_tgt
->placed_address
),
4767 (unsigned long) retval
);
4772 debug_to_insert_watchpoint (struct target_ops
*self
,
4773 CORE_ADDR addr
, int len
, int type
,
4774 struct expression
*cond
)
4778 retval
= debug_target
.to_insert_watchpoint (&debug_target
,
4779 addr
, len
, type
, cond
);
4781 fprintf_unfiltered (gdb_stdlog
,
4782 "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n",
4783 core_addr_to_string (addr
), len
, type
,
4784 host_address_to_string (cond
), (unsigned long) retval
);
4789 debug_to_remove_watchpoint (struct target_ops
*self
,
4790 CORE_ADDR addr
, int len
, int type
,
4791 struct expression
*cond
)
4795 retval
= debug_target
.to_remove_watchpoint (&debug_target
,
4796 addr
, len
, type
, cond
);
4798 fprintf_unfiltered (gdb_stdlog
,
4799 "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n",
4800 core_addr_to_string (addr
), len
, type
,
4801 host_address_to_string (cond
), (unsigned long) retval
);
4806 debug_to_terminal_init (struct target_ops
*self
)
4808 debug_target
.to_terminal_init (&debug_target
);
4810 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
4814 debug_to_terminal_inferior (struct target_ops
*self
)
4816 debug_target
.to_terminal_inferior (&debug_target
);
4818 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
4822 debug_to_terminal_ours_for_output (struct target_ops
*self
)
4824 debug_target
.to_terminal_ours_for_output (&debug_target
);
4826 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
4830 debug_to_terminal_ours (struct target_ops
*self
)
4832 debug_target
.to_terminal_ours (&debug_target
);
4834 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
4838 debug_to_terminal_save_ours (struct target_ops
*self
)
4840 debug_target
.to_terminal_save_ours (&debug_target
);
4842 fprintf_unfiltered (gdb_stdlog
, "target_terminal_save_ours ()\n");
4846 debug_to_terminal_info (struct target_ops
*self
,
4847 const char *arg
, int from_tty
)
4849 debug_target
.to_terminal_info (&debug_target
, arg
, from_tty
);
4851 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
4856 debug_to_load (struct target_ops
*self
, char *args
, int from_tty
)
4858 debug_target
.to_load (&debug_target
, args
, from_tty
);
4860 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
4864 debug_to_post_startup_inferior (struct target_ops
*self
, ptid_t ptid
)
4866 debug_target
.to_post_startup_inferior (&debug_target
, ptid
);
4868 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
4869 ptid_get_pid (ptid
));
4873 debug_to_insert_fork_catchpoint (struct target_ops
*self
, int pid
)
4877 retval
= debug_target
.to_insert_fork_catchpoint (&debug_target
, pid
);
4879 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d) = %d\n",
4886 debug_to_remove_fork_catchpoint (struct target_ops
*self
, int pid
)
4890 retval
= debug_target
.to_remove_fork_catchpoint (&debug_target
, pid
);
4892 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
4899 debug_to_insert_vfork_catchpoint (struct target_ops
*self
, int pid
)
4903 retval
= debug_target
.to_insert_vfork_catchpoint (&debug_target
, pid
);
4905 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d) = %d\n",
4912 debug_to_remove_vfork_catchpoint (struct target_ops
*self
, int pid
)
4916 retval
= debug_target
.to_remove_vfork_catchpoint (&debug_target
, pid
);
4918 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
4925 debug_to_insert_exec_catchpoint (struct target_ops
*self
, int pid
)
4929 retval
= debug_target
.to_insert_exec_catchpoint (&debug_target
, pid
);
4931 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d) = %d\n",
4938 debug_to_remove_exec_catchpoint (struct target_ops
*self
, int pid
)
4942 retval
= debug_target
.to_remove_exec_catchpoint (&debug_target
, pid
);
4944 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
4951 debug_to_has_exited (struct target_ops
*self
,
4952 int pid
, int wait_status
, int *exit_status
)
4956 has_exited
= debug_target
.to_has_exited (&debug_target
,
4957 pid
, wait_status
, exit_status
);
4959 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
4960 pid
, wait_status
, *exit_status
, has_exited
);
4966 debug_to_can_run (struct target_ops
*self
)
4970 retval
= debug_target
.to_can_run (&debug_target
);
4972 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
4977 static struct gdbarch
*
4978 debug_to_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
4980 struct gdbarch
*retval
;
4982 retval
= debug_target
.to_thread_architecture (ops
, ptid
);
4984 fprintf_unfiltered (gdb_stdlog
,
4985 "target_thread_architecture (%s) = %s [%s]\n",
4986 target_pid_to_str (ptid
),
4987 host_address_to_string (retval
),
4988 gdbarch_bfd_arch_info (retval
)->printable_name
);
4993 debug_to_stop (struct target_ops
*self
, ptid_t ptid
)
4995 debug_target
.to_stop (&debug_target
, ptid
);
4997 fprintf_unfiltered (gdb_stdlog
, "target_stop (%s)\n",
4998 target_pid_to_str (ptid
));
5002 debug_to_rcmd (struct target_ops
*self
, char *command
,
5003 struct ui_file
*outbuf
)
5005 debug_target
.to_rcmd (&debug_target
, command
, outbuf
);
5006 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
5010 debug_to_pid_to_exec_file (struct target_ops
*self
, int pid
)
5014 exec_file
= debug_target
.to_pid_to_exec_file (&debug_target
, pid
);
5016 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
5023 setup_target_debug (void)
5025 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
5027 current_target
.to_open
= debug_to_open
;
5028 current_target
.to_post_attach
= debug_to_post_attach
;
5029 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
5030 current_target
.deprecated_xfer_memory
= deprecated_debug_xfer_memory
;
5031 current_target
.to_files_info
= debug_to_files_info
;
5032 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
5033 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
5034 current_target
.to_can_use_hw_breakpoint
= debug_to_can_use_hw_breakpoint
;
5035 current_target
.to_insert_hw_breakpoint
= debug_to_insert_hw_breakpoint
;
5036 current_target
.to_remove_hw_breakpoint
= debug_to_remove_hw_breakpoint
;
5037 current_target
.to_insert_watchpoint
= debug_to_insert_watchpoint
;
5038 current_target
.to_remove_watchpoint
= debug_to_remove_watchpoint
;
5039 current_target
.to_stopped_by_watchpoint
= debug_to_stopped_by_watchpoint
;
5040 current_target
.to_stopped_data_address
= debug_to_stopped_data_address
;
5041 current_target
.to_watchpoint_addr_within_range
5042 = debug_to_watchpoint_addr_within_range
;
5043 current_target
.to_region_ok_for_hw_watchpoint
5044 = debug_to_region_ok_for_hw_watchpoint
;
5045 current_target
.to_can_accel_watchpoint_condition
5046 = debug_to_can_accel_watchpoint_condition
;
5047 current_target
.to_terminal_init
= debug_to_terminal_init
;
5048 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
5049 current_target
.to_terminal_ours_for_output
5050 = debug_to_terminal_ours_for_output
;
5051 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
5052 current_target
.to_terminal_save_ours
= debug_to_terminal_save_ours
;
5053 current_target
.to_terminal_info
= debug_to_terminal_info
;
5054 current_target
.to_load
= debug_to_load
;
5055 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
5056 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
5057 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
5058 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
5059 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
5060 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
5061 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
5062 current_target
.to_has_exited
= debug_to_has_exited
;
5063 current_target
.to_can_run
= debug_to_can_run
;
5064 current_target
.to_stop
= debug_to_stop
;
5065 current_target
.to_rcmd
= debug_to_rcmd
;
5066 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
5067 current_target
.to_thread_architecture
= debug_to_thread_architecture
;
5071 static char targ_desc
[] =
5072 "Names of targets and files being debugged.\nShows the entire \
5073 stack of targets currently in use (including the exec-file,\n\
5074 core-file, and process, if any), as well as the symbol file name.";
5077 do_monitor_command (char *cmd
,
5080 if ((current_target
.to_rcmd
5081 == (void (*) (struct target_ops
*, char *, struct ui_file
*)) tcomplain
)
5082 || (current_target
.to_rcmd
== debug_to_rcmd
5083 && (debug_target
.to_rcmd
5084 == (void (*) (struct target_ops
*,
5085 char *, struct ui_file
*)) tcomplain
)))
5086 error (_("\"monitor\" command not supported by this target."));
5087 target_rcmd (cmd
, gdb_stdtarg
);
5090 /* Print the name of each layers of our target stack. */
5093 maintenance_print_target_stack (char *cmd
, int from_tty
)
5095 struct target_ops
*t
;
5097 printf_filtered (_("The current target stack is:\n"));
5099 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
5101 printf_filtered (" - %s (%s)\n", t
->to_shortname
, t
->to_longname
);
5105 /* Controls if async mode is permitted. */
5106 int target_async_permitted
= 0;
5108 /* The set command writes to this variable. If the inferior is
5109 executing, target_async_permitted is *not* updated. */
5110 static int target_async_permitted_1
= 0;
5113 set_target_async_command (char *args
, int from_tty
,
5114 struct cmd_list_element
*c
)
5116 if (have_live_inferiors ())
5118 target_async_permitted_1
= target_async_permitted
;
5119 error (_("Cannot change this setting while the inferior is running."));
5122 target_async_permitted
= target_async_permitted_1
;
5126 show_target_async_command (struct ui_file
*file
, int from_tty
,
5127 struct cmd_list_element
*c
,
5130 fprintf_filtered (file
,
5131 _("Controlling the inferior in "
5132 "asynchronous mode is %s.\n"), value
);
5135 /* Temporary copies of permission settings. */
5137 static int may_write_registers_1
= 1;
5138 static int may_write_memory_1
= 1;
5139 static int may_insert_breakpoints_1
= 1;
5140 static int may_insert_tracepoints_1
= 1;
5141 static int may_insert_fast_tracepoints_1
= 1;
5142 static int may_stop_1
= 1;
5144 /* Make the user-set values match the real values again. */
5147 update_target_permissions (void)
5149 may_write_registers_1
= may_write_registers
;
5150 may_write_memory_1
= may_write_memory
;
5151 may_insert_breakpoints_1
= may_insert_breakpoints
;
5152 may_insert_tracepoints_1
= may_insert_tracepoints
;
5153 may_insert_fast_tracepoints_1
= may_insert_fast_tracepoints
;
5154 may_stop_1
= may_stop
;
5157 /* The one function handles (most of) the permission flags in the same
5161 set_target_permissions (char *args
, int from_tty
,
5162 struct cmd_list_element
*c
)
5164 if (target_has_execution
)
5166 update_target_permissions ();
5167 error (_("Cannot change this setting while the inferior is running."));
5170 /* Make the real values match the user-changed values. */
5171 may_write_registers
= may_write_registers_1
;
5172 may_insert_breakpoints
= may_insert_breakpoints_1
;
5173 may_insert_tracepoints
= may_insert_tracepoints_1
;
5174 may_insert_fast_tracepoints
= may_insert_fast_tracepoints_1
;
5175 may_stop
= may_stop_1
;
5176 update_observer_mode ();
5179 /* Set memory write permission independently of observer mode. */
5182 set_write_memory_permission (char *args
, int from_tty
,
5183 struct cmd_list_element
*c
)
5185 /* Make the real values match the user-changed values. */
5186 may_write_memory
= may_write_memory_1
;
5187 update_observer_mode ();
5192 initialize_targets (void)
5194 init_dummy_target ();
5195 push_target (&dummy_target
);
5197 add_info ("target", target_info
, targ_desc
);
5198 add_info ("files", target_info
, targ_desc
);
5200 add_setshow_zuinteger_cmd ("target", class_maintenance
, &targetdebug
, _("\
5201 Set target debugging."), _("\
5202 Show target debugging."), _("\
5203 When non-zero, target debugging is enabled. Higher numbers are more\n\
5204 verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
5208 &setdebuglist
, &showdebuglist
);
5210 add_setshow_boolean_cmd ("trust-readonly-sections", class_support
,
5211 &trust_readonly
, _("\
5212 Set mode for reading from readonly sections."), _("\
5213 Show mode for reading from readonly sections."), _("\
5214 When this mode is on, memory reads from readonly sections (such as .text)\n\
5215 will be read from the object file instead of from the target. This will\n\
5216 result in significant performance improvement for remote targets."),
5218 show_trust_readonly
,
5219 &setlist
, &showlist
);
5221 add_com ("monitor", class_obscure
, do_monitor_command
,
5222 _("Send a command to the remote monitor (remote targets only)."));
5224 add_cmd ("target-stack", class_maintenance
, maintenance_print_target_stack
,
5225 _("Print the name of each layer of the internal target stack."),
5226 &maintenanceprintlist
);
5228 add_setshow_boolean_cmd ("target-async", no_class
,
5229 &target_async_permitted_1
, _("\
5230 Set whether gdb controls the inferior in asynchronous mode."), _("\
5231 Show whether gdb controls the inferior in asynchronous mode."), _("\
5232 Tells gdb whether to control the inferior in asynchronous mode."),
5233 set_target_async_command
,
5234 show_target_async_command
,
5238 add_setshow_boolean_cmd ("may-write-registers", class_support
,
5239 &may_write_registers_1
, _("\
5240 Set permission to write into registers."), _("\
5241 Show permission to write into registers."), _("\
5242 When this permission is on, GDB may write into the target's registers.\n\
5243 Otherwise, any sort of write attempt will result in an error."),
5244 set_target_permissions
, NULL
,
5245 &setlist
, &showlist
);
5247 add_setshow_boolean_cmd ("may-write-memory", class_support
,
5248 &may_write_memory_1
, _("\
5249 Set permission to write into target memory."), _("\
5250 Show permission to write into target memory."), _("\
5251 When this permission is on, GDB may write into the target's memory.\n\
5252 Otherwise, any sort of write attempt will result in an error."),
5253 set_write_memory_permission
, NULL
,
5254 &setlist
, &showlist
);
5256 add_setshow_boolean_cmd ("may-insert-breakpoints", class_support
,
5257 &may_insert_breakpoints_1
, _("\
5258 Set permission to insert breakpoints in the target."), _("\
5259 Show permission to insert breakpoints in the target."), _("\
5260 When this permission is on, GDB may insert breakpoints in the program.\n\
5261 Otherwise, any sort of insertion attempt will result in an error."),
5262 set_target_permissions
, NULL
,
5263 &setlist
, &showlist
);
5265 add_setshow_boolean_cmd ("may-insert-tracepoints", class_support
,
5266 &may_insert_tracepoints_1
, _("\
5267 Set permission to insert tracepoints in the target."), _("\
5268 Show permission to insert tracepoints in the target."), _("\
5269 When this permission is on, GDB may insert tracepoints in the program.\n\
5270 Otherwise, any sort of insertion attempt will result in an error."),
5271 set_target_permissions
, NULL
,
5272 &setlist
, &showlist
);
5274 add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support
,
5275 &may_insert_fast_tracepoints_1
, _("\
5276 Set permission to insert fast tracepoints in the target."), _("\
5277 Show permission to insert fast tracepoints in the target."), _("\
5278 When this permission is on, GDB may insert fast tracepoints.\n\
5279 Otherwise, any sort of insertion attempt will result in an error."),
5280 set_target_permissions
, NULL
,
5281 &setlist
, &showlist
);
5283 add_setshow_boolean_cmd ("may-interrupt", class_support
,
5285 Set permission to interrupt or signal the target."), _("\
5286 Show permission to interrupt or signal the target."), _("\
5287 When this permission is on, GDB may interrupt/stop the target's execution.\n\
5288 Otherwise, any attempt to interrupt or stop will be ignored."),
5289 set_target_permissions
, NULL
,
5290 &setlist
, &showlist
);