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 default_rcmd (struct target_ops
*, char *, struct ui_file
*);
60 static void tcomplain (void) ATTRIBUTE_NORETURN
;
62 static int nomemory (CORE_ADDR
, char *, int, int, struct target_ops
*);
64 static int return_zero (void);
66 static int return_one (void);
68 static int return_minus_one (void);
70 static void *return_null (void);
72 void target_ignore (void);
74 static void target_command (char *, int);
76 static struct target_ops
*find_default_run_target (char *);
78 static target_xfer_partial_ftype default_xfer_partial
;
80 static struct gdbarch
*default_thread_architecture (struct target_ops
*ops
,
83 static int find_default_can_async_p (struct target_ops
*ignore
);
85 static int find_default_is_async_p (struct target_ops
*ignore
);
87 #include "target-delegates.c"
89 static void init_dummy_target (void);
91 static struct target_ops debug_target
;
93 static void debug_to_open (char *, int);
95 static void debug_to_prepare_to_store (struct target_ops
*self
,
98 static void debug_to_files_info (struct target_ops
*);
100 static int debug_to_insert_breakpoint (struct target_ops
*, struct gdbarch
*,
101 struct bp_target_info
*);
103 static int debug_to_remove_breakpoint (struct target_ops
*, struct gdbarch
*,
104 struct bp_target_info
*);
106 static int debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
109 static int debug_to_insert_hw_breakpoint (struct target_ops
*self
,
111 struct bp_target_info
*);
113 static int debug_to_remove_hw_breakpoint (struct target_ops
*self
,
115 struct bp_target_info
*);
117 static int debug_to_insert_watchpoint (struct target_ops
*self
,
119 struct expression
*);
121 static int debug_to_remove_watchpoint (struct target_ops
*self
,
123 struct expression
*);
125 static int debug_to_stopped_data_address (struct target_ops
*, CORE_ADDR
*);
127 static int debug_to_watchpoint_addr_within_range (struct target_ops
*,
128 CORE_ADDR
, CORE_ADDR
, int);
130 static int debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
133 static int debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
135 struct expression
*);
137 static void debug_to_terminal_init (struct target_ops
*self
);
139 static void debug_to_terminal_inferior (struct target_ops
*self
);
141 static void debug_to_terminal_ours_for_output (struct target_ops
*self
);
143 static void debug_to_terminal_save_ours (struct target_ops
*self
);
145 static void debug_to_terminal_ours (struct target_ops
*self
);
147 static void debug_to_load (struct target_ops
*self
, char *, int);
149 static int debug_to_can_run (struct target_ops
*self
);
151 static void debug_to_stop (struct target_ops
*self
, ptid_t
);
153 /* Pointer to array of target architecture structures; the size of the
154 array; the current index into the array; the allocated size of the
156 struct target_ops
**target_structs
;
157 unsigned target_struct_size
;
158 unsigned target_struct_allocsize
;
159 #define DEFAULT_ALLOCSIZE 10
161 /* The initial current target, so that there is always a semi-valid
164 static struct target_ops dummy_target
;
166 /* Top of target stack. */
168 static struct target_ops
*target_stack
;
170 /* The target structure we are currently using to talk to a process
171 or file or whatever "inferior" we have. */
173 struct target_ops current_target
;
175 /* Command list for target. */
177 static struct cmd_list_element
*targetlist
= NULL
;
179 /* Nonzero if we should trust readonly sections from the
180 executable when reading memory. */
182 static int trust_readonly
= 0;
184 /* Nonzero if we should show true memory content including
185 memory breakpoint inserted by gdb. */
187 static int show_memory_breakpoints
= 0;
189 /* These globals control whether GDB attempts to perform these
190 operations; they are useful for targets that need to prevent
191 inadvertant disruption, such as in non-stop mode. */
193 int may_write_registers
= 1;
195 int may_write_memory
= 1;
197 int may_insert_breakpoints
= 1;
199 int may_insert_tracepoints
= 1;
201 int may_insert_fast_tracepoints
= 1;
205 /* Non-zero if we want to see trace of target level stuff. */
207 static unsigned int targetdebug
= 0;
209 show_targetdebug (struct ui_file
*file
, int from_tty
,
210 struct cmd_list_element
*c
, const char *value
)
212 fprintf_filtered (file
, _("Target debugging is %s.\n"), value
);
215 static void setup_target_debug (void);
217 /* The user just typed 'target' without the name of a target. */
220 target_command (char *arg
, int from_tty
)
222 fputs_filtered ("Argument required (target name). Try `help target'\n",
226 /* Default target_has_* methods for process_stratum targets. */
229 default_child_has_all_memory (struct target_ops
*ops
)
231 /* If no inferior selected, then we can't read memory here. */
232 if (ptid_equal (inferior_ptid
, null_ptid
))
239 default_child_has_memory (struct target_ops
*ops
)
241 /* If no inferior selected, then we can't read memory here. */
242 if (ptid_equal (inferior_ptid
, null_ptid
))
249 default_child_has_stack (struct target_ops
*ops
)
251 /* If no inferior selected, there's no stack. */
252 if (ptid_equal (inferior_ptid
, null_ptid
))
259 default_child_has_registers (struct target_ops
*ops
)
261 /* Can't read registers from no inferior. */
262 if (ptid_equal (inferior_ptid
, null_ptid
))
269 default_child_has_execution (struct target_ops
*ops
, ptid_t the_ptid
)
271 /* If there's no thread selected, then we can't make it run through
273 if (ptid_equal (the_ptid
, null_ptid
))
281 target_has_all_memory_1 (void)
283 struct target_ops
*t
;
285 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
286 if (t
->to_has_all_memory (t
))
293 target_has_memory_1 (void)
295 struct target_ops
*t
;
297 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
298 if (t
->to_has_memory (t
))
305 target_has_stack_1 (void)
307 struct target_ops
*t
;
309 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
310 if (t
->to_has_stack (t
))
317 target_has_registers_1 (void)
319 struct target_ops
*t
;
321 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
322 if (t
->to_has_registers (t
))
329 target_has_execution_1 (ptid_t the_ptid
)
331 struct target_ops
*t
;
333 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
334 if (t
->to_has_execution (t
, the_ptid
))
341 target_has_execution_current (void)
343 return target_has_execution_1 (inferior_ptid
);
346 /* Complete initialization of T. This ensures that various fields in
347 T are set, if needed by the target implementation. */
350 complete_target_initialization (struct target_ops
*t
)
352 /* Provide default values for all "must have" methods. */
353 if (t
->to_xfer_partial
== NULL
)
354 t
->to_xfer_partial
= default_xfer_partial
;
356 if (t
->to_has_all_memory
== NULL
)
357 t
->to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
359 if (t
->to_has_memory
== NULL
)
360 t
->to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
362 if (t
->to_has_stack
== NULL
)
363 t
->to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
365 if (t
->to_has_registers
== NULL
)
366 t
->to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
368 if (t
->to_has_execution
== NULL
)
369 t
->to_has_execution
= (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
371 install_delegators (t
);
374 /* Add possible target architecture T to the list and add a new
375 command 'target T->to_shortname'. Set COMPLETER as the command's
376 completer if not NULL. */
379 add_target_with_completer (struct target_ops
*t
,
380 completer_ftype
*completer
)
382 struct cmd_list_element
*c
;
384 complete_target_initialization (t
);
388 target_struct_allocsize
= DEFAULT_ALLOCSIZE
;
389 target_structs
= (struct target_ops
**) xmalloc
390 (target_struct_allocsize
* sizeof (*target_structs
));
392 if (target_struct_size
>= target_struct_allocsize
)
394 target_struct_allocsize
*= 2;
395 target_structs
= (struct target_ops
**)
396 xrealloc ((char *) target_structs
,
397 target_struct_allocsize
* sizeof (*target_structs
));
399 target_structs
[target_struct_size
++] = t
;
401 if (targetlist
== NULL
)
402 add_prefix_cmd ("target", class_run
, target_command
, _("\
403 Connect to a target machine or process.\n\
404 The first argument is the type or protocol of the target machine.\n\
405 Remaining arguments are interpreted by the target protocol. For more\n\
406 information on the arguments for a particular protocol, type\n\
407 `help target ' followed by the protocol name."),
408 &targetlist
, "target ", 0, &cmdlist
);
409 c
= add_cmd (t
->to_shortname
, no_class
, t
->to_open
, t
->to_doc
,
411 if (completer
!= NULL
)
412 set_cmd_completer (c
, completer
);
415 /* Add a possible target architecture to the list. */
418 add_target (struct target_ops
*t
)
420 add_target_with_completer (t
, NULL
);
426 add_deprecated_target_alias (struct target_ops
*t
, char *alias
)
428 struct cmd_list_element
*c
;
431 /* If we use add_alias_cmd, here, we do not get the deprecated warning,
433 c
= add_cmd (alias
, no_class
, t
->to_open
, t
->to_doc
, &targetlist
);
434 alt
= xstrprintf ("target %s", t
->to_shortname
);
435 deprecate_cmd (c
, alt
);
448 struct target_ops
*t
;
450 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
451 if (t
->to_kill
!= NULL
)
454 fprintf_unfiltered (gdb_stdlog
, "target_kill ()\n");
464 target_load (char *arg
, int from_tty
)
466 target_dcache_invalidate ();
467 (*current_target
.to_load
) (¤t_target
, arg
, from_tty
);
471 target_create_inferior (char *exec_file
, char *args
,
472 char **env
, int from_tty
)
474 struct target_ops
*t
;
476 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
478 if (t
->to_create_inferior
!= NULL
)
480 t
->to_create_inferior (t
, exec_file
, args
, env
, from_tty
);
482 fprintf_unfiltered (gdb_stdlog
,
483 "target_create_inferior (%s, %s, xxx, %d)\n",
484 exec_file
, args
, from_tty
);
489 internal_error (__FILE__
, __LINE__
,
490 _("could not find a target to create inferior"));
494 target_terminal_inferior (void)
496 /* A background resume (``run&'') should leave GDB in control of the
497 terminal. Use target_can_async_p, not target_is_async_p, since at
498 this point the target is not async yet. However, if sync_execution
499 is not set, we know it will become async prior to resume. */
500 if (target_can_async_p () && !sync_execution
)
503 /* If GDB is resuming the inferior in the foreground, install
504 inferior's terminal modes. */
505 (*current_target
.to_terminal_inferior
) (¤t_target
);
509 nomemory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
,
510 struct target_ops
*t
)
512 errno
= EIO
; /* Can't read/write this location. */
513 return 0; /* No bytes handled. */
519 error (_("You can't do that when your target is `%s'"),
520 current_target
.to_shortname
);
526 error (_("You can't do that without a process to debug."));
530 default_terminal_info (struct target_ops
*self
, const char *args
, int from_tty
)
532 printf_unfiltered (_("No saved terminal information.\n"));
535 /* A default implementation for the to_get_ada_task_ptid target method.
537 This function builds the PTID by using both LWP and TID as part of
538 the PTID lwp and tid elements. The pid used is the pid of the
542 default_get_ada_task_ptid (struct target_ops
*self
, long lwp
, long tid
)
544 return ptid_build (ptid_get_pid (inferior_ptid
), lwp
, tid
);
547 static enum exec_direction_kind
548 default_execution_direction (struct target_ops
*self
)
550 if (!target_can_execute_reverse
)
552 else if (!target_can_async_p ())
555 gdb_assert_not_reached ("\
556 to_execution_direction must be implemented for reverse async");
559 /* Go through the target stack from top to bottom, copying over zero
560 entries in current_target, then filling in still empty entries. In
561 effect, we are doing class inheritance through the pushed target
564 NOTE: cagney/2003-10-17: The problem with this inheritance, as it
565 is currently implemented, is that it discards any knowledge of
566 which target an inherited method originally belonged to.
567 Consequently, new new target methods should instead explicitly and
568 locally search the target stack for the target that can handle the
572 update_current_target (void)
574 struct target_ops
*t
;
576 /* First, reset current's contents. */
577 memset (¤t_target
, 0, sizeof (current_target
));
579 /* Install the delegators. */
580 install_delegators (¤t_target
);
582 #define INHERIT(FIELD, TARGET) \
583 if (!current_target.FIELD) \
584 current_target.FIELD = (TARGET)->FIELD
586 for (t
= target_stack
; t
; t
= t
->beneath
)
588 INHERIT (to_shortname
, t
);
589 INHERIT (to_longname
, t
);
591 /* Do not inherit to_open. */
592 /* Do not inherit to_close. */
593 /* Do not inherit to_attach. */
594 /* Do not inherit to_post_attach. */
595 INHERIT (to_attach_no_wait
, t
);
596 /* Do not inherit to_detach. */
597 /* Do not inherit to_disconnect. */
598 /* Do not inherit to_resume. */
599 /* Do not inherit to_wait. */
600 /* Do not inherit to_fetch_registers. */
601 /* Do not inherit to_store_registers. */
602 /* Do not inherit to_prepare_to_store. */
603 INHERIT (deprecated_xfer_memory
, t
);
604 /* Do not inherit to_files_info. */
605 /* Do not inherit to_insert_breakpoint. */
606 /* Do not inherit to_remove_breakpoint. */
607 /* Do not inherit to_can_use_hw_breakpoint. */
608 /* Do not inherit to_insert_hw_breakpoint. */
609 INHERIT (to_remove_hw_breakpoint
, t
);
610 /* Do not inherit to_ranged_break_num_registers. */
611 INHERIT (to_insert_watchpoint
, t
);
612 INHERIT (to_remove_watchpoint
, t
);
613 /* Do not inherit to_insert_mask_watchpoint. */
614 /* Do not inherit to_remove_mask_watchpoint. */
615 /* Do not inherit to_stopped_data_address. */
616 INHERIT (to_have_steppable_watchpoint
, t
);
617 INHERIT (to_have_continuable_watchpoint
, t
);
618 /* Do not inherit to_stopped_by_watchpoint. */
619 INHERIT (to_watchpoint_addr_within_range
, t
);
620 INHERIT (to_region_ok_for_hw_watchpoint
, t
);
621 INHERIT (to_can_accel_watchpoint_condition
, t
);
622 /* Do not inherit to_masked_watch_num_registers. */
623 INHERIT (to_terminal_init
, t
);
624 INHERIT (to_terminal_inferior
, t
);
625 INHERIT (to_terminal_ours_for_output
, t
);
626 INHERIT (to_terminal_ours
, t
);
627 INHERIT (to_terminal_save_ours
, t
);
628 INHERIT (to_terminal_info
, t
);
629 /* Do not inherit to_kill. */
630 INHERIT (to_load
, t
);
631 /* Do no inherit to_create_inferior. */
632 INHERIT (to_post_startup_inferior
, t
);
633 INHERIT (to_insert_fork_catchpoint
, t
);
634 INHERIT (to_remove_fork_catchpoint
, t
);
635 INHERIT (to_insert_vfork_catchpoint
, t
);
636 INHERIT (to_remove_vfork_catchpoint
, t
);
637 /* Do not inherit to_follow_fork. */
638 INHERIT (to_insert_exec_catchpoint
, t
);
639 INHERIT (to_remove_exec_catchpoint
, t
);
640 INHERIT (to_set_syscall_catchpoint
, t
);
641 INHERIT (to_has_exited
, t
);
642 /* Do not inherit to_mourn_inferior. */
643 INHERIT (to_can_run
, t
);
644 /* Do not inherit to_pass_signals. */
645 /* Do not inherit to_program_signals. */
646 /* Do not inherit to_thread_alive. */
647 /* Do not inherit to_find_new_threads. */
648 /* Do not inherit to_pid_to_str. */
649 INHERIT (to_extra_thread_info
, t
);
650 INHERIT (to_thread_name
, t
);
651 INHERIT (to_stop
, t
);
652 /* Do not inherit to_xfer_partial. */
653 /* Do not inherit to_rcmd. */
654 INHERIT (to_pid_to_exec_file
, t
);
655 INHERIT (to_log_command
, t
);
656 INHERIT (to_stratum
, t
);
657 /* Do not inherit to_has_all_memory. */
658 /* Do not inherit to_has_memory. */
659 /* Do not inherit to_has_stack. */
660 /* Do not inherit to_has_registers. */
661 /* Do not inherit to_has_execution. */
662 INHERIT (to_has_thread_control
, t
);
663 /* Do not inherit to_can_async_p. */
664 /* Do not inherit to_is_async_p. */
665 /* Do not inherit to_async. */
666 INHERIT (to_find_memory_regions
, t
);
667 INHERIT (to_make_corefile_notes
, t
);
668 INHERIT (to_get_bookmark
, t
);
669 INHERIT (to_goto_bookmark
, t
);
670 /* Do not inherit to_get_thread_local_address. */
671 INHERIT (to_can_execute_reverse
, t
);
672 INHERIT (to_execution_direction
, t
);
673 INHERIT (to_thread_architecture
, t
);
674 /* Do not inherit to_read_description. */
675 INHERIT (to_get_ada_task_ptid
, t
);
676 /* Do not inherit to_search_memory. */
677 INHERIT (to_supports_multi_process
, t
);
678 INHERIT (to_supports_enable_disable_tracepoint
, t
);
679 INHERIT (to_supports_string_tracing
, t
);
680 INHERIT (to_trace_init
, t
);
681 INHERIT (to_download_tracepoint
, t
);
682 INHERIT (to_can_download_tracepoint
, t
);
683 INHERIT (to_download_trace_state_variable
, t
);
684 INHERIT (to_enable_tracepoint
, t
);
685 INHERIT (to_disable_tracepoint
, t
);
686 INHERIT (to_trace_set_readonly_regions
, t
);
687 INHERIT (to_trace_start
, t
);
688 INHERIT (to_get_trace_status
, t
);
689 INHERIT (to_get_tracepoint_status
, t
);
690 INHERIT (to_trace_stop
, t
);
691 INHERIT (to_trace_find
, t
);
692 INHERIT (to_get_trace_state_variable_value
, t
);
693 INHERIT (to_save_trace_data
, t
);
694 INHERIT (to_upload_tracepoints
, t
);
695 INHERIT (to_upload_trace_state_variables
, t
);
696 INHERIT (to_get_raw_trace_data
, t
);
697 INHERIT (to_get_min_fast_tracepoint_insn_len
, t
);
698 INHERIT (to_set_disconnected_tracing
, t
);
699 INHERIT (to_set_circular_trace_buffer
, t
);
700 INHERIT (to_set_trace_buffer_size
, t
);
701 INHERIT (to_set_trace_notes
, t
);
702 INHERIT (to_get_tib_address
, t
);
703 INHERIT (to_set_permissions
, t
);
704 INHERIT (to_static_tracepoint_marker_at
, t
);
705 INHERIT (to_static_tracepoint_markers_by_strid
, t
);
706 INHERIT (to_traceframe_info
, t
);
707 INHERIT (to_use_agent
, t
);
708 INHERIT (to_can_use_agent
, t
);
709 INHERIT (to_augmented_libraries_svr4_read
, t
);
710 INHERIT (to_magic
, t
);
711 INHERIT (to_supports_evaluation_of_breakpoint_conditions
, t
);
712 INHERIT (to_can_run_breakpoint_commands
, t
);
713 /* Do not inherit to_memory_map. */
714 /* Do not inherit to_flash_erase. */
715 /* Do not inherit to_flash_done. */
719 /* Clean up a target struct so it no longer has any zero pointers in
720 it. Some entries are defaulted to a method that print an error,
721 others are hard-wired to a standard recursive default. */
723 #define de_fault(field, value) \
724 if (!current_target.field) \
725 current_target.field = value
728 (void (*) (char *, int))
731 (void (*) (struct target_ops
*))
733 de_fault (deprecated_xfer_memory
,
734 (int (*) (CORE_ADDR
, gdb_byte
*, int, int,
735 struct mem_attrib
*, struct target_ops
*))
737 de_fault (to_remove_hw_breakpoint
,
738 (int (*) (struct target_ops
*, struct gdbarch
*,
739 struct bp_target_info
*))
741 de_fault (to_insert_watchpoint
,
742 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
743 struct expression
*))
745 de_fault (to_remove_watchpoint
,
746 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
747 struct expression
*))
749 de_fault (to_watchpoint_addr_within_range
,
750 default_watchpoint_addr_within_range
);
751 de_fault (to_region_ok_for_hw_watchpoint
,
752 default_region_ok_for_hw_watchpoint
);
753 de_fault (to_can_accel_watchpoint_condition
,
754 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
755 struct expression
*))
757 de_fault (to_terminal_init
,
758 (void (*) (struct target_ops
*))
760 de_fault (to_terminal_inferior
,
761 (void (*) (struct target_ops
*))
763 de_fault (to_terminal_ours_for_output
,
764 (void (*) (struct target_ops
*))
766 de_fault (to_terminal_ours
,
767 (void (*) (struct target_ops
*))
769 de_fault (to_terminal_save_ours
,
770 (void (*) (struct target_ops
*))
772 de_fault (to_terminal_info
,
773 default_terminal_info
);
775 (void (*) (struct target_ops
*, char *, int))
777 de_fault (to_post_startup_inferior
,
778 (void (*) (struct target_ops
*, ptid_t
))
780 de_fault (to_insert_fork_catchpoint
,
781 (int (*) (struct target_ops
*, int))
783 de_fault (to_remove_fork_catchpoint
,
784 (int (*) (struct target_ops
*, int))
786 de_fault (to_insert_vfork_catchpoint
,
787 (int (*) (struct target_ops
*, int))
789 de_fault (to_remove_vfork_catchpoint
,
790 (int (*) (struct target_ops
*, int))
792 de_fault (to_insert_exec_catchpoint
,
793 (int (*) (struct target_ops
*, int))
795 de_fault (to_remove_exec_catchpoint
,
796 (int (*) (struct target_ops
*, int))
798 de_fault (to_set_syscall_catchpoint
,
799 (int (*) (struct target_ops
*, int, int, int, int, int *))
801 de_fault (to_has_exited
,
802 (int (*) (struct target_ops
*, int, int, int *))
804 de_fault (to_can_run
,
805 (int (*) (struct target_ops
*))
807 de_fault (to_extra_thread_info
,
808 (char *(*) (struct target_ops
*, struct thread_info
*))
810 de_fault (to_thread_name
,
811 (char *(*) (struct target_ops
*, struct thread_info
*))
814 (void (*) (struct target_ops
*, ptid_t
))
816 de_fault (to_pid_to_exec_file
,
817 (char *(*) (struct target_ops
*, int))
819 de_fault (to_thread_architecture
,
820 default_thread_architecture
);
821 current_target
.to_read_description
= NULL
;
822 de_fault (to_get_ada_task_ptid
,
823 (ptid_t (*) (struct target_ops
*, long, long))
824 default_get_ada_task_ptid
);
825 de_fault (to_supports_multi_process
,
826 (int (*) (struct target_ops
*))
828 de_fault (to_supports_enable_disable_tracepoint
,
829 (int (*) (struct target_ops
*))
831 de_fault (to_supports_string_tracing
,
832 (int (*) (struct target_ops
*))
834 de_fault (to_trace_init
,
835 (void (*) (struct target_ops
*))
837 de_fault (to_download_tracepoint
,
838 (void (*) (struct target_ops
*, struct bp_location
*))
840 de_fault (to_can_download_tracepoint
,
841 (int (*) (struct target_ops
*))
843 de_fault (to_download_trace_state_variable
,
844 (void (*) (struct target_ops
*, struct trace_state_variable
*))
846 de_fault (to_enable_tracepoint
,
847 (void (*) (struct target_ops
*, struct bp_location
*))
849 de_fault (to_disable_tracepoint
,
850 (void (*) (struct target_ops
*, struct bp_location
*))
852 de_fault (to_trace_set_readonly_regions
,
853 (void (*) (struct target_ops
*))
855 de_fault (to_trace_start
,
856 (void (*) (struct target_ops
*))
858 de_fault (to_get_trace_status
,
859 (int (*) (struct target_ops
*, struct trace_status
*))
861 de_fault (to_get_tracepoint_status
,
862 (void (*) (struct target_ops
*, struct breakpoint
*,
863 struct uploaded_tp
*))
865 de_fault (to_trace_stop
,
866 (void (*) (struct target_ops
*))
868 de_fault (to_trace_find
,
869 (int (*) (struct target_ops
*,
870 enum trace_find_type
, int, CORE_ADDR
, CORE_ADDR
, int *))
872 de_fault (to_get_trace_state_variable_value
,
873 (int (*) (struct target_ops
*, int, LONGEST
*))
875 de_fault (to_save_trace_data
,
876 (int (*) (struct target_ops
*, const char *))
878 de_fault (to_upload_tracepoints
,
879 (int (*) (struct target_ops
*, struct uploaded_tp
**))
881 de_fault (to_upload_trace_state_variables
,
882 (int (*) (struct target_ops
*, struct uploaded_tsv
**))
884 de_fault (to_get_raw_trace_data
,
885 (LONGEST (*) (struct target_ops
*, gdb_byte
*, ULONGEST
, LONGEST
))
887 de_fault (to_get_min_fast_tracepoint_insn_len
,
888 (int (*) (struct target_ops
*))
890 de_fault (to_set_disconnected_tracing
,
891 (void (*) (struct target_ops
*, int))
893 de_fault (to_set_circular_trace_buffer
,
894 (void (*) (struct target_ops
*, int))
896 de_fault (to_set_trace_buffer_size
,
897 (void (*) (struct target_ops
*, LONGEST
))
899 de_fault (to_set_trace_notes
,
900 (int (*) (struct target_ops
*,
901 const char *, const char *, const char *))
903 de_fault (to_get_tib_address
,
904 (int (*) (struct target_ops
*, ptid_t
, CORE_ADDR
*))
906 de_fault (to_set_permissions
,
907 (void (*) (struct target_ops
*))
909 de_fault (to_static_tracepoint_marker_at
,
910 (int (*) (struct target_ops
*,
911 CORE_ADDR
, struct static_tracepoint_marker
*))
913 de_fault (to_static_tracepoint_markers_by_strid
,
914 (VEC(static_tracepoint_marker_p
) * (*) (struct target_ops
*,
917 de_fault (to_traceframe_info
,
918 (struct traceframe_info
* (*) (struct target_ops
*))
920 de_fault (to_supports_evaluation_of_breakpoint_conditions
,
921 (int (*) (struct target_ops
*))
923 de_fault (to_can_run_breakpoint_commands
,
924 (int (*) (struct target_ops
*))
926 de_fault (to_use_agent
,
927 (int (*) (struct target_ops
*, int))
929 de_fault (to_can_use_agent
,
930 (int (*) (struct target_ops
*))
932 de_fault (to_augmented_libraries_svr4_read
,
933 (int (*) (struct target_ops
*))
935 de_fault (to_execution_direction
, default_execution_direction
);
939 /* Finally, position the target-stack beneath the squashed
940 "current_target". That way code looking for a non-inherited
941 target method can quickly and simply find it. */
942 current_target
.beneath
= target_stack
;
945 setup_target_debug ();
948 /* Push a new target type into the stack of the existing target accessors,
949 possibly superseding some of the existing accessors.
951 Rather than allow an empty stack, we always have the dummy target at
952 the bottom stratum, so we can call the function vectors without
956 push_target (struct target_ops
*t
)
958 struct target_ops
**cur
;
960 /* Check magic number. If wrong, it probably means someone changed
961 the struct definition, but not all the places that initialize one. */
962 if (t
->to_magic
!= OPS_MAGIC
)
964 fprintf_unfiltered (gdb_stderr
,
965 "Magic number of %s target struct wrong\n",
967 internal_error (__FILE__
, __LINE__
,
968 _("failed internal consistency check"));
971 /* Find the proper stratum to install this target in. */
972 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
974 if ((int) (t
->to_stratum
) >= (int) (*cur
)->to_stratum
)
978 /* If there's already targets at this stratum, remove them. */
979 /* FIXME: cagney/2003-10-15: I think this should be popping all
980 targets to CUR, and not just those at this stratum level. */
981 while ((*cur
) != NULL
&& t
->to_stratum
== (*cur
)->to_stratum
)
983 /* There's already something at this stratum level. Close it,
984 and un-hook it from the stack. */
985 struct target_ops
*tmp
= (*cur
);
987 (*cur
) = (*cur
)->beneath
;
992 /* We have removed all targets in our stratum, now add the new one. */
996 update_current_target ();
999 /* Remove a target_ops vector from the stack, wherever it may be.
1000 Return how many times it was removed (0 or 1). */
1003 unpush_target (struct target_ops
*t
)
1005 struct target_ops
**cur
;
1006 struct target_ops
*tmp
;
1008 if (t
->to_stratum
== dummy_stratum
)
1009 internal_error (__FILE__
, __LINE__
,
1010 _("Attempt to unpush the dummy target"));
1012 /* Look for the specified target. Note that we assume that a target
1013 can only occur once in the target stack. */
1015 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1021 /* If we don't find target_ops, quit. Only open targets should be
1026 /* Unchain the target. */
1028 (*cur
) = (*cur
)->beneath
;
1029 tmp
->beneath
= NULL
;
1031 update_current_target ();
1033 /* Finally close the target. Note we do this after unchaining, so
1034 any target method calls from within the target_close
1035 implementation don't end up in T anymore. */
1042 pop_all_targets_above (enum strata above_stratum
)
1044 while ((int) (current_target
.to_stratum
) > (int) above_stratum
)
1046 if (!unpush_target (target_stack
))
1048 fprintf_unfiltered (gdb_stderr
,
1049 "pop_all_targets couldn't find target %s\n",
1050 target_stack
->to_shortname
);
1051 internal_error (__FILE__
, __LINE__
,
1052 _("failed internal consistency check"));
1059 pop_all_targets (void)
1061 pop_all_targets_above (dummy_stratum
);
1064 /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */
1067 target_is_pushed (struct target_ops
*t
)
1069 struct target_ops
**cur
;
1071 /* Check magic number. If wrong, it probably means someone changed
1072 the struct definition, but not all the places that initialize one. */
1073 if (t
->to_magic
!= OPS_MAGIC
)
1075 fprintf_unfiltered (gdb_stderr
,
1076 "Magic number of %s target struct wrong\n",
1078 internal_error (__FILE__
, __LINE__
,
1079 _("failed internal consistency check"));
1082 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1089 /* Using the objfile specified in OBJFILE, find the address for the
1090 current thread's thread-local storage with offset OFFSET. */
1092 target_translate_tls_address (struct objfile
*objfile
, CORE_ADDR offset
)
1094 volatile CORE_ADDR addr
= 0;
1095 struct target_ops
*target
;
1097 for (target
= current_target
.beneath
;
1099 target
= target
->beneath
)
1101 if (target
->to_get_thread_local_address
!= NULL
)
1106 && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ()))
1108 ptid_t ptid
= inferior_ptid
;
1109 volatile struct gdb_exception ex
;
1111 TRY_CATCH (ex
, RETURN_MASK_ALL
)
1115 /* Fetch the load module address for this objfile. */
1116 lm_addr
= gdbarch_fetch_tls_load_module_address (target_gdbarch (),
1118 /* If it's 0, throw the appropriate exception. */
1120 throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR
,
1121 _("TLS load module not found"));
1123 addr
= target
->to_get_thread_local_address (target
, ptid
,
1126 /* If an error occurred, print TLS related messages here. Otherwise,
1127 throw the error to some higher catcher. */
1130 int objfile_is_library
= (objfile
->flags
& OBJF_SHARED
);
1134 case TLS_NO_LIBRARY_SUPPORT_ERROR
:
1135 error (_("Cannot find thread-local variables "
1136 "in this thread library."));
1138 case TLS_LOAD_MODULE_NOT_FOUND_ERROR
:
1139 if (objfile_is_library
)
1140 error (_("Cannot find shared library `%s' in dynamic"
1141 " linker's load module list"), objfile_name (objfile
));
1143 error (_("Cannot find executable file `%s' in dynamic"
1144 " linker's load module list"), objfile_name (objfile
));
1146 case TLS_NOT_ALLOCATED_YET_ERROR
:
1147 if (objfile_is_library
)
1148 error (_("The inferior has not yet allocated storage for"
1149 " thread-local variables in\n"
1150 "the shared library `%s'\n"
1152 objfile_name (objfile
), target_pid_to_str (ptid
));
1154 error (_("The inferior has not yet allocated storage for"
1155 " thread-local variables in\n"
1156 "the executable `%s'\n"
1158 objfile_name (objfile
), target_pid_to_str (ptid
));
1160 case TLS_GENERIC_ERROR
:
1161 if (objfile_is_library
)
1162 error (_("Cannot find thread-local storage for %s, "
1163 "shared library %s:\n%s"),
1164 target_pid_to_str (ptid
),
1165 objfile_name (objfile
), ex
.message
);
1167 error (_("Cannot find thread-local storage for %s, "
1168 "executable file %s:\n%s"),
1169 target_pid_to_str (ptid
),
1170 objfile_name (objfile
), ex
.message
);
1173 throw_exception (ex
);
1178 /* It wouldn't be wrong here to try a gdbarch method, too; finding
1179 TLS is an ABI-specific thing. But we don't do that yet. */
1181 error (_("Cannot find thread-local variables on this target"));
1187 target_xfer_status_to_string (enum target_xfer_status err
)
1189 #define CASE(X) case X: return #X
1192 CASE(TARGET_XFER_E_IO
);
1193 CASE(TARGET_XFER_E_UNAVAILABLE
);
1202 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
1204 /* target_read_string -- read a null terminated string, up to LEN bytes,
1205 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
1206 Set *STRING to a pointer to malloc'd memory containing the data; the caller
1207 is responsible for freeing it. Return the number of bytes successfully
1211 target_read_string (CORE_ADDR memaddr
, char **string
, int len
, int *errnop
)
1213 int tlen
, offset
, i
;
1217 int buffer_allocated
;
1219 unsigned int nbytes_read
= 0;
1221 gdb_assert (string
);
1223 /* Small for testing. */
1224 buffer_allocated
= 4;
1225 buffer
= xmalloc (buffer_allocated
);
1230 tlen
= MIN (len
, 4 - (memaddr
& 3));
1231 offset
= memaddr
& 3;
1233 errcode
= target_read_memory (memaddr
& ~3, buf
, sizeof buf
);
1236 /* The transfer request might have crossed the boundary to an
1237 unallocated region of memory. Retry the transfer, requesting
1241 errcode
= target_read_memory (memaddr
, buf
, 1);
1246 if (bufptr
- buffer
+ tlen
> buffer_allocated
)
1250 bytes
= bufptr
- buffer
;
1251 buffer_allocated
*= 2;
1252 buffer
= xrealloc (buffer
, buffer_allocated
);
1253 bufptr
= buffer
+ bytes
;
1256 for (i
= 0; i
< tlen
; i
++)
1258 *bufptr
++ = buf
[i
+ offset
];
1259 if (buf
[i
+ offset
] == '\000')
1261 nbytes_read
+= i
+ 1;
1268 nbytes_read
+= tlen
;
1277 struct target_section_table
*
1278 target_get_section_table (struct target_ops
*target
)
1280 struct target_ops
*t
;
1283 fprintf_unfiltered (gdb_stdlog
, "target_get_section_table ()\n");
1285 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
1286 if (t
->to_get_section_table
!= NULL
)
1287 return (*t
->to_get_section_table
) (t
);
1292 /* Find a section containing ADDR. */
1294 struct target_section
*
1295 target_section_by_addr (struct target_ops
*target
, CORE_ADDR addr
)
1297 struct target_section_table
*table
= target_get_section_table (target
);
1298 struct target_section
*secp
;
1303 for (secp
= table
->sections
; secp
< table
->sections_end
; secp
++)
1305 if (addr
>= secp
->addr
&& addr
< secp
->endaddr
)
1311 /* Read memory from the live target, even if currently inspecting a
1312 traceframe. The return is the same as that of target_read. */
1314 static enum target_xfer_status
1315 target_read_live_memory (enum target_object object
,
1316 ULONGEST memaddr
, gdb_byte
*myaddr
, ULONGEST len
,
1317 ULONGEST
*xfered_len
)
1319 enum target_xfer_status ret
;
1320 struct cleanup
*cleanup
;
1322 /* Switch momentarily out of tfind mode so to access live memory.
1323 Note that this must not clear global state, such as the frame
1324 cache, which must still remain valid for the previous traceframe.
1325 We may be _building_ the frame cache at this point. */
1326 cleanup
= make_cleanup_restore_traceframe_number ();
1327 set_traceframe_number (-1);
1329 ret
= target_xfer_partial (current_target
.beneath
, object
, NULL
,
1330 myaddr
, NULL
, memaddr
, len
, xfered_len
);
1332 do_cleanups (cleanup
);
1336 /* Using the set of read-only target sections of OPS, read live
1337 read-only memory. Note that the actual reads start from the
1338 top-most target again.
1340 For interface/parameters/return description see target.h,
1343 static enum target_xfer_status
1344 memory_xfer_live_readonly_partial (struct target_ops
*ops
,
1345 enum target_object object
,
1346 gdb_byte
*readbuf
, ULONGEST memaddr
,
1347 ULONGEST len
, ULONGEST
*xfered_len
)
1349 struct target_section
*secp
;
1350 struct target_section_table
*table
;
1352 secp
= target_section_by_addr (ops
, memaddr
);
1354 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1355 secp
->the_bfd_section
)
1358 struct target_section
*p
;
1359 ULONGEST memend
= memaddr
+ len
;
1361 table
= target_get_section_table (ops
);
1363 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
1365 if (memaddr
>= p
->addr
)
1367 if (memend
<= p
->endaddr
)
1369 /* Entire transfer is within this section. */
1370 return target_read_live_memory (object
, memaddr
,
1371 readbuf
, len
, xfered_len
);
1373 else if (memaddr
>= p
->endaddr
)
1375 /* This section ends before the transfer starts. */
1380 /* This section overlaps the transfer. Just do half. */
1381 len
= p
->endaddr
- memaddr
;
1382 return target_read_live_memory (object
, memaddr
,
1383 readbuf
, len
, xfered_len
);
1389 return TARGET_XFER_EOF
;
1392 /* Read memory from more than one valid target. A core file, for
1393 instance, could have some of memory but delegate other bits to
1394 the target below it. So, we must manually try all targets. */
1396 static enum target_xfer_status
1397 raw_memory_xfer_partial (struct target_ops
*ops
, gdb_byte
*readbuf
,
1398 const gdb_byte
*writebuf
, ULONGEST memaddr
, LONGEST len
,
1399 ULONGEST
*xfered_len
)
1401 enum target_xfer_status res
;
1405 res
= ops
->to_xfer_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1406 readbuf
, writebuf
, memaddr
, len
,
1408 if (res
== TARGET_XFER_OK
)
1411 /* Stop if the target reports that the memory is not available. */
1412 if (res
== TARGET_XFER_E_UNAVAILABLE
)
1415 /* We want to continue past core files to executables, but not
1416 past a running target's memory. */
1417 if (ops
->to_has_all_memory (ops
))
1422 while (ops
!= NULL
);
1427 /* Perform a partial memory transfer.
1428 For docs see target.h, to_xfer_partial. */
1430 static enum target_xfer_status
1431 memory_xfer_partial_1 (struct target_ops
*ops
, enum target_object object
,
1432 gdb_byte
*readbuf
, const gdb_byte
*writebuf
, ULONGEST memaddr
,
1433 ULONGEST len
, ULONGEST
*xfered_len
)
1435 enum target_xfer_status res
;
1437 struct mem_region
*region
;
1438 struct inferior
*inf
;
1440 /* For accesses to unmapped overlay sections, read directly from
1441 files. Must do this first, as MEMADDR may need adjustment. */
1442 if (readbuf
!= NULL
&& overlay_debugging
)
1444 struct obj_section
*section
= find_pc_overlay (memaddr
);
1446 if (pc_in_unmapped_range (memaddr
, section
))
1448 struct target_section_table
*table
1449 = target_get_section_table (ops
);
1450 const char *section_name
= section
->the_bfd_section
->name
;
1452 memaddr
= overlay_mapped_address (memaddr
, section
);
1453 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1454 memaddr
, len
, xfered_len
,
1456 table
->sections_end
,
1461 /* Try the executable files, if "trust-readonly-sections" is set. */
1462 if (readbuf
!= NULL
&& trust_readonly
)
1464 struct target_section
*secp
;
1465 struct target_section_table
*table
;
1467 secp
= target_section_by_addr (ops
, memaddr
);
1469 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1470 secp
->the_bfd_section
)
1473 table
= target_get_section_table (ops
);
1474 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1475 memaddr
, len
, xfered_len
,
1477 table
->sections_end
,
1482 /* If reading unavailable memory in the context of traceframes, and
1483 this address falls within a read-only section, fallback to
1484 reading from live memory. */
1485 if (readbuf
!= NULL
&& get_traceframe_number () != -1)
1487 VEC(mem_range_s
) *available
;
1489 /* If we fail to get the set of available memory, then the
1490 target does not support querying traceframe info, and so we
1491 attempt reading from the traceframe anyway (assuming the
1492 target implements the old QTro packet then). */
1493 if (traceframe_available_memory (&available
, memaddr
, len
))
1495 struct cleanup
*old_chain
;
1497 old_chain
= make_cleanup (VEC_cleanup(mem_range_s
), &available
);
1499 if (VEC_empty (mem_range_s
, available
)
1500 || VEC_index (mem_range_s
, available
, 0)->start
!= memaddr
)
1502 /* Don't read into the traceframe's available
1504 if (!VEC_empty (mem_range_s
, available
))
1506 LONGEST oldlen
= len
;
1508 len
= VEC_index (mem_range_s
, available
, 0)->start
- memaddr
;
1509 gdb_assert (len
<= oldlen
);
1512 do_cleanups (old_chain
);
1514 /* This goes through the topmost target again. */
1515 res
= memory_xfer_live_readonly_partial (ops
, object
,
1518 if (res
== TARGET_XFER_OK
)
1519 return TARGET_XFER_OK
;
1522 /* No use trying further, we know some memory starting
1523 at MEMADDR isn't available. */
1525 return TARGET_XFER_E_UNAVAILABLE
;
1529 /* Don't try to read more than how much is available, in
1530 case the target implements the deprecated QTro packet to
1531 cater for older GDBs (the target's knowledge of read-only
1532 sections may be outdated by now). */
1533 len
= VEC_index (mem_range_s
, available
, 0)->length
;
1535 do_cleanups (old_chain
);
1539 /* Try GDB's internal data cache. */
1540 region
= lookup_mem_region (memaddr
);
1541 /* region->hi == 0 means there's no upper bound. */
1542 if (memaddr
+ len
< region
->hi
|| region
->hi
== 0)
1545 reg_len
= region
->hi
- memaddr
;
1547 switch (region
->attrib
.mode
)
1550 if (writebuf
!= NULL
)
1551 return TARGET_XFER_E_IO
;
1555 if (readbuf
!= NULL
)
1556 return TARGET_XFER_E_IO
;
1560 /* We only support writing to flash during "load" for now. */
1561 if (writebuf
!= NULL
)
1562 error (_("Writing to flash memory forbidden in this context"));
1566 return TARGET_XFER_E_IO
;
1569 if (!ptid_equal (inferior_ptid
, null_ptid
))
1570 inf
= find_inferior_pid (ptid_get_pid (inferior_ptid
));
1575 /* The dcache reads whole cache lines; that doesn't play well
1576 with reading from a trace buffer, because reading outside of
1577 the collected memory range fails. */
1578 && get_traceframe_number () == -1
1579 && (region
->attrib
.cache
1580 || (stack_cache_enabled_p () && object
== TARGET_OBJECT_STACK_MEMORY
)
1581 || (code_cache_enabled_p () && object
== TARGET_OBJECT_CODE_MEMORY
)))
1583 DCACHE
*dcache
= target_dcache_get_or_init ();
1586 if (readbuf
!= NULL
)
1587 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, readbuf
, reg_len
, 0);
1589 /* FIXME drow/2006-08-09: If we're going to preserve const
1590 correctness dcache_xfer_memory should take readbuf and
1592 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, (void *) writebuf
,
1595 return TARGET_XFER_E_IO
;
1598 *xfered_len
= (ULONGEST
) l
;
1599 return TARGET_XFER_OK
;
1603 /* If none of those methods found the memory we wanted, fall back
1604 to a target partial transfer. Normally a single call to
1605 to_xfer_partial is enough; if it doesn't recognize an object
1606 it will call the to_xfer_partial of the next target down.
1607 But for memory this won't do. Memory is the only target
1608 object which can be read from more than one valid target.
1609 A core file, for instance, could have some of memory but
1610 delegate other bits to the target below it. So, we must
1611 manually try all targets. */
1613 res
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, memaddr
, reg_len
,
1616 /* Make sure the cache gets updated no matter what - if we are writing
1617 to the stack. Even if this write is not tagged as such, we still need
1618 to update the cache. */
1620 if (res
== TARGET_XFER_OK
1623 && target_dcache_init_p ()
1624 && !region
->attrib
.cache
1625 && ((stack_cache_enabled_p () && object
!= TARGET_OBJECT_STACK_MEMORY
)
1626 || (code_cache_enabled_p () && object
!= TARGET_OBJECT_CODE_MEMORY
)))
1628 DCACHE
*dcache
= target_dcache_get ();
1630 dcache_update (dcache
, memaddr
, (void *) writebuf
, reg_len
);
1633 /* If we still haven't got anything, return the last error. We
1638 /* Perform a partial memory transfer. For docs see target.h,
1641 static enum target_xfer_status
1642 memory_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1643 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1644 ULONGEST memaddr
, ULONGEST len
, ULONGEST
*xfered_len
)
1646 enum target_xfer_status res
;
1648 /* Zero length requests are ok and require no work. */
1650 return TARGET_XFER_EOF
;
1652 /* Fill in READBUF with breakpoint shadows, or WRITEBUF with
1653 breakpoint insns, thus hiding out from higher layers whether
1654 there are software breakpoints inserted in the code stream. */
1655 if (readbuf
!= NULL
)
1657 res
= memory_xfer_partial_1 (ops
, object
, readbuf
, NULL
, memaddr
, len
,
1660 if (res
== TARGET_XFER_OK
&& !show_memory_breakpoints
)
1661 breakpoint_xfer_memory (readbuf
, NULL
, NULL
, memaddr
, res
);
1666 struct cleanup
*old_chain
;
1668 /* A large write request is likely to be partially satisfied
1669 by memory_xfer_partial_1. We will continually malloc
1670 and free a copy of the entire write request for breakpoint
1671 shadow handling even though we only end up writing a small
1672 subset of it. Cap writes to 4KB to mitigate this. */
1673 len
= min (4096, len
);
1675 buf
= xmalloc (len
);
1676 old_chain
= make_cleanup (xfree
, buf
);
1677 memcpy (buf
, writebuf
, len
);
1679 breakpoint_xfer_memory (NULL
, buf
, writebuf
, memaddr
, len
);
1680 res
= memory_xfer_partial_1 (ops
, object
, NULL
, buf
, memaddr
, len
,
1683 do_cleanups (old_chain
);
1690 restore_show_memory_breakpoints (void *arg
)
1692 show_memory_breakpoints
= (uintptr_t) arg
;
1696 make_show_memory_breakpoints_cleanup (int show
)
1698 int current
= show_memory_breakpoints
;
1700 show_memory_breakpoints
= show
;
1701 return make_cleanup (restore_show_memory_breakpoints
,
1702 (void *) (uintptr_t) current
);
1705 /* For docs see target.h, to_xfer_partial. */
1707 enum target_xfer_status
1708 target_xfer_partial (struct target_ops
*ops
,
1709 enum target_object object
, const char *annex
,
1710 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1711 ULONGEST offset
, ULONGEST len
,
1712 ULONGEST
*xfered_len
)
1714 enum target_xfer_status retval
;
1716 gdb_assert (ops
->to_xfer_partial
!= NULL
);
1718 /* Transfer is done when LEN is zero. */
1720 return TARGET_XFER_EOF
;
1722 if (writebuf
&& !may_write_memory
)
1723 error (_("Writing to memory is not allowed (addr %s, len %s)"),
1724 core_addr_to_string_nz (offset
), plongest (len
));
1728 /* If this is a memory transfer, let the memory-specific code
1729 have a look at it instead. Memory transfers are more
1731 if (object
== TARGET_OBJECT_MEMORY
|| object
== TARGET_OBJECT_STACK_MEMORY
1732 || object
== TARGET_OBJECT_CODE_MEMORY
)
1733 retval
= memory_xfer_partial (ops
, object
, readbuf
,
1734 writebuf
, offset
, len
, xfered_len
);
1735 else if (object
== TARGET_OBJECT_RAW_MEMORY
)
1737 /* Request the normal memory object from other layers. */
1738 retval
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, offset
, len
,
1742 retval
= ops
->to_xfer_partial (ops
, object
, annex
, readbuf
,
1743 writebuf
, offset
, len
, xfered_len
);
1747 const unsigned char *myaddr
= NULL
;
1749 fprintf_unfiltered (gdb_stdlog
,
1750 "%s:target_xfer_partial "
1751 "(%d, %s, %s, %s, %s, %s) = %d, %s",
1754 (annex
? annex
: "(null)"),
1755 host_address_to_string (readbuf
),
1756 host_address_to_string (writebuf
),
1757 core_addr_to_string_nz (offset
),
1758 pulongest (len
), retval
,
1759 pulongest (*xfered_len
));
1765 if (retval
== TARGET_XFER_OK
&& myaddr
!= NULL
)
1769 fputs_unfiltered (", bytes =", gdb_stdlog
);
1770 for (i
= 0; i
< *xfered_len
; i
++)
1772 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
1774 if (targetdebug
< 2 && i
> 0)
1776 fprintf_unfiltered (gdb_stdlog
, " ...");
1779 fprintf_unfiltered (gdb_stdlog
, "\n");
1782 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
1786 fputc_unfiltered ('\n', gdb_stdlog
);
1789 /* Check implementations of to_xfer_partial update *XFERED_LEN
1790 properly. Do assertion after printing debug messages, so that we
1791 can find more clues on assertion failure from debugging messages. */
1792 if (retval
== TARGET_XFER_OK
|| retval
== TARGET_XFER_E_UNAVAILABLE
)
1793 gdb_assert (*xfered_len
> 0);
1798 /* Read LEN bytes of target memory at address MEMADDR, placing the
1799 results in GDB's memory at MYADDR. Returns either 0 for success or
1800 TARGET_XFER_E_IO if any error occurs.
1802 If an error occurs, no guarantee is made about the contents of the data at
1803 MYADDR. In particular, the caller should not depend upon partial reads
1804 filling the buffer with good data. There is no way for the caller to know
1805 how much good data might have been transfered anyway. Callers that can
1806 deal with partial reads should call target_read (which will retry until
1807 it makes no progress, and then return how much was transferred). */
1810 target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1812 /* Dispatch to the topmost target, not the flattened current_target.
1813 Memory accesses check target->to_has_(all_)memory, and the
1814 flattened target doesn't inherit those. */
1815 if (target_read (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1816 myaddr
, memaddr
, len
) == len
)
1819 return TARGET_XFER_E_IO
;
1822 /* Like target_read_memory, but specify explicitly that this is a read
1823 from the target's raw memory. That is, this read bypasses the
1824 dcache, breakpoint shadowing, etc. */
1827 target_read_raw_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1829 /* See comment in target_read_memory about why the request starts at
1830 current_target.beneath. */
1831 if (target_read (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1832 myaddr
, memaddr
, len
) == len
)
1835 return TARGET_XFER_E_IO
;
1838 /* Like target_read_memory, but specify explicitly that this is a read from
1839 the target's stack. This may trigger different cache behavior. */
1842 target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1844 /* See comment in target_read_memory about why the request starts at
1845 current_target.beneath. */
1846 if (target_read (current_target
.beneath
, TARGET_OBJECT_STACK_MEMORY
, NULL
,
1847 myaddr
, memaddr
, len
) == len
)
1850 return TARGET_XFER_E_IO
;
1853 /* Like target_read_memory, but specify explicitly that this is a read from
1854 the target's code. This may trigger different cache behavior. */
1857 target_read_code (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1859 /* See comment in target_read_memory about why the request starts at
1860 current_target.beneath. */
1861 if (target_read (current_target
.beneath
, TARGET_OBJECT_CODE_MEMORY
, NULL
,
1862 myaddr
, memaddr
, len
) == len
)
1865 return TARGET_XFER_E_IO
;
1868 /* Write LEN bytes from MYADDR to target memory at address MEMADDR.
1869 Returns either 0 for success or TARGET_XFER_E_IO if any
1870 error occurs. If an error occurs, no guarantee is made about how
1871 much data got written. Callers that can deal with partial writes
1872 should call target_write. */
1875 target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1877 /* See comment in target_read_memory about why the request starts at
1878 current_target.beneath. */
1879 if (target_write (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1880 myaddr
, memaddr
, len
) == len
)
1883 return TARGET_XFER_E_IO
;
1886 /* Write LEN bytes from MYADDR to target raw memory at address
1887 MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO
1888 if any error occurs. If an error occurs, no guarantee is made
1889 about how much data got written. Callers that can deal with
1890 partial writes should call target_write. */
1893 target_write_raw_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1895 /* See comment in target_read_memory about why the request starts at
1896 current_target.beneath. */
1897 if (target_write (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1898 myaddr
, memaddr
, len
) == len
)
1901 return TARGET_XFER_E_IO
;
1904 /* Fetch the target's memory map. */
1907 target_memory_map (void)
1909 VEC(mem_region_s
) *result
;
1910 struct mem_region
*last_one
, *this_one
;
1912 struct target_ops
*t
;
1915 fprintf_unfiltered (gdb_stdlog
, "target_memory_map ()\n");
1917 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1918 if (t
->to_memory_map
!= NULL
)
1924 result
= t
->to_memory_map (t
);
1928 qsort (VEC_address (mem_region_s
, result
),
1929 VEC_length (mem_region_s
, result
),
1930 sizeof (struct mem_region
), mem_region_cmp
);
1932 /* Check that regions do not overlap. Simultaneously assign
1933 a numbering for the "mem" commands to use to refer to
1936 for (ix
= 0; VEC_iterate (mem_region_s
, result
, ix
, this_one
); ix
++)
1938 this_one
->number
= ix
;
1940 if (last_one
&& last_one
->hi
> this_one
->lo
)
1942 warning (_("Overlapping regions in memory map: ignoring"));
1943 VEC_free (mem_region_s
, result
);
1946 last_one
= this_one
;
1953 target_flash_erase (ULONGEST address
, LONGEST length
)
1955 struct target_ops
*t
;
1957 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1958 if (t
->to_flash_erase
!= NULL
)
1961 fprintf_unfiltered (gdb_stdlog
, "target_flash_erase (%s, %s)\n",
1962 hex_string (address
), phex (length
, 0));
1963 t
->to_flash_erase (t
, address
, length
);
1971 target_flash_done (void)
1973 struct target_ops
*t
;
1975 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1976 if (t
->to_flash_done
!= NULL
)
1979 fprintf_unfiltered (gdb_stdlog
, "target_flash_done\n");
1980 t
->to_flash_done (t
);
1988 show_trust_readonly (struct ui_file
*file
, int from_tty
,
1989 struct cmd_list_element
*c
, const char *value
)
1991 fprintf_filtered (file
,
1992 _("Mode for reading from readonly sections is %s.\n"),
1996 /* More generic transfers. */
1998 static enum target_xfer_status
1999 default_xfer_partial (struct target_ops
*ops
, enum target_object object
,
2000 const char *annex
, gdb_byte
*readbuf
,
2001 const gdb_byte
*writebuf
, ULONGEST offset
, ULONGEST len
,
2002 ULONGEST
*xfered_len
)
2004 if (object
== TARGET_OBJECT_MEMORY
2005 && ops
->deprecated_xfer_memory
!= NULL
)
2006 /* If available, fall back to the target's
2007 "deprecated_xfer_memory" method. */
2012 if (writebuf
!= NULL
)
2014 void *buffer
= xmalloc (len
);
2015 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
2017 memcpy (buffer
, writebuf
, len
);
2018 xfered
= ops
->deprecated_xfer_memory (offset
, buffer
, len
,
2019 1/*write*/, NULL
, ops
);
2020 do_cleanups (cleanup
);
2022 if (readbuf
!= NULL
)
2023 xfered
= ops
->deprecated_xfer_memory (offset
, readbuf
, len
,
2024 0/*read*/, NULL
, ops
);
2027 *xfered_len
= (ULONGEST
) xfered
;
2028 return TARGET_XFER_E_IO
;
2030 else if (xfered
== 0 && errno
== 0)
2031 /* "deprecated_xfer_memory" uses 0, cross checked against
2032 ERRNO as one indication of an error. */
2033 return TARGET_XFER_EOF
;
2035 return TARGET_XFER_E_IO
;
2039 gdb_assert (ops
->beneath
!= NULL
);
2040 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
2041 readbuf
, writebuf
, offset
, len
,
2046 /* Target vector read/write partial wrapper functions. */
2048 static enum target_xfer_status
2049 target_read_partial (struct target_ops
*ops
,
2050 enum target_object object
,
2051 const char *annex
, gdb_byte
*buf
,
2052 ULONGEST offset
, ULONGEST len
,
2053 ULONGEST
*xfered_len
)
2055 return target_xfer_partial (ops
, object
, annex
, buf
, NULL
, offset
, len
,
2059 static enum target_xfer_status
2060 target_write_partial (struct target_ops
*ops
,
2061 enum target_object object
,
2062 const char *annex
, const gdb_byte
*buf
,
2063 ULONGEST offset
, LONGEST len
, ULONGEST
*xfered_len
)
2065 return target_xfer_partial (ops
, object
, annex
, NULL
, buf
, offset
, len
,
2069 /* Wrappers to perform the full transfer. */
2071 /* For docs on target_read see target.h. */
2074 target_read (struct target_ops
*ops
,
2075 enum target_object object
,
2076 const char *annex
, gdb_byte
*buf
,
2077 ULONGEST offset
, LONGEST len
)
2081 while (xfered
< len
)
2083 ULONGEST xfered_len
;
2084 enum target_xfer_status status
;
2086 status
= target_read_partial (ops
, object
, annex
,
2087 (gdb_byte
*) buf
+ xfered
,
2088 offset
+ xfered
, len
- xfered
,
2091 /* Call an observer, notifying them of the xfer progress? */
2092 if (status
== TARGET_XFER_EOF
)
2094 else if (status
== TARGET_XFER_OK
)
2096 xfered
+= xfered_len
;
2106 /* Assuming that the entire [begin, end) range of memory cannot be
2107 read, try to read whatever subrange is possible to read.
2109 The function returns, in RESULT, either zero or one memory block.
2110 If there's a readable subrange at the beginning, it is completely
2111 read and returned. Any further readable subrange will not be read.
2112 Otherwise, if there's a readable subrange at the end, it will be
2113 completely read and returned. Any readable subranges before it
2114 (obviously, not starting at the beginning), will be ignored. In
2115 other cases -- either no readable subrange, or readable subrange(s)
2116 that is neither at the beginning, or end, nothing is returned.
2118 The purpose of this function is to handle a read across a boundary
2119 of accessible memory in a case when memory map is not available.
2120 The above restrictions are fine for this case, but will give
2121 incorrect results if the memory is 'patchy'. However, supporting
2122 'patchy' memory would require trying to read every single byte,
2123 and it seems unacceptable solution. Explicit memory map is
2124 recommended for this case -- and target_read_memory_robust will
2125 take care of reading multiple ranges then. */
2128 read_whatever_is_readable (struct target_ops
*ops
,
2129 ULONGEST begin
, ULONGEST end
,
2130 VEC(memory_read_result_s
) **result
)
2132 gdb_byte
*buf
= xmalloc (end
- begin
);
2133 ULONGEST current_begin
= begin
;
2134 ULONGEST current_end
= end
;
2136 memory_read_result_s r
;
2137 ULONGEST xfered_len
;
2139 /* If we previously failed to read 1 byte, nothing can be done here. */
2140 if (end
- begin
<= 1)
2146 /* Check that either first or the last byte is readable, and give up
2147 if not. This heuristic is meant to permit reading accessible memory
2148 at the boundary of accessible region. */
2149 if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2150 buf
, begin
, 1, &xfered_len
) == TARGET_XFER_OK
)
2155 else if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2156 buf
+ (end
-begin
) - 1, end
- 1, 1,
2157 &xfered_len
) == TARGET_XFER_OK
)
2168 /* Loop invariant is that the [current_begin, current_end) was previously
2169 found to be not readable as a whole.
2171 Note loop condition -- if the range has 1 byte, we can't divide the range
2172 so there's no point trying further. */
2173 while (current_end
- current_begin
> 1)
2175 ULONGEST first_half_begin
, first_half_end
;
2176 ULONGEST second_half_begin
, second_half_end
;
2178 ULONGEST middle
= current_begin
+ (current_end
- current_begin
)/2;
2182 first_half_begin
= current_begin
;
2183 first_half_end
= middle
;
2184 second_half_begin
= middle
;
2185 second_half_end
= current_end
;
2189 first_half_begin
= middle
;
2190 first_half_end
= current_end
;
2191 second_half_begin
= current_begin
;
2192 second_half_end
= middle
;
2195 xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2196 buf
+ (first_half_begin
- begin
),
2198 first_half_end
- first_half_begin
);
2200 if (xfer
== first_half_end
- first_half_begin
)
2202 /* This half reads up fine. So, the error must be in the
2204 current_begin
= second_half_begin
;
2205 current_end
= second_half_end
;
2209 /* This half is not readable. Because we've tried one byte, we
2210 know some part of this half if actually redable. Go to the next
2211 iteration to divide again and try to read.
2213 We don't handle the other half, because this function only tries
2214 to read a single readable subrange. */
2215 current_begin
= first_half_begin
;
2216 current_end
= first_half_end
;
2222 /* The [begin, current_begin) range has been read. */
2224 r
.end
= current_begin
;
2229 /* The [current_end, end) range has been read. */
2230 LONGEST rlen
= end
- current_end
;
2232 r
.data
= xmalloc (rlen
);
2233 memcpy (r
.data
, buf
+ current_end
- begin
, rlen
);
2234 r
.begin
= current_end
;
2238 VEC_safe_push(memory_read_result_s
, (*result
), &r
);
2242 free_memory_read_result_vector (void *x
)
2244 VEC(memory_read_result_s
) *v
= x
;
2245 memory_read_result_s
*current
;
2248 for (ix
= 0; VEC_iterate (memory_read_result_s
, v
, ix
, current
); ++ix
)
2250 xfree (current
->data
);
2252 VEC_free (memory_read_result_s
, v
);
2255 VEC(memory_read_result_s
) *
2256 read_memory_robust (struct target_ops
*ops
, ULONGEST offset
, LONGEST len
)
2258 VEC(memory_read_result_s
) *result
= 0;
2261 while (xfered
< len
)
2263 struct mem_region
*region
= lookup_mem_region (offset
+ xfered
);
2266 /* If there is no explicit region, a fake one should be created. */
2267 gdb_assert (region
);
2269 if (region
->hi
== 0)
2270 rlen
= len
- xfered
;
2272 rlen
= region
->hi
- offset
;
2274 if (region
->attrib
.mode
== MEM_NONE
|| region
->attrib
.mode
== MEM_WO
)
2276 /* Cannot read this region. Note that we can end up here only
2277 if the region is explicitly marked inaccessible, or
2278 'inaccessible-by-default' is in effect. */
2283 LONGEST to_read
= min (len
- xfered
, rlen
);
2284 gdb_byte
*buffer
= (gdb_byte
*)xmalloc (to_read
);
2286 LONGEST xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2287 (gdb_byte
*) buffer
,
2288 offset
+ xfered
, to_read
);
2289 /* Call an observer, notifying them of the xfer progress? */
2292 /* Got an error reading full chunk. See if maybe we can read
2295 read_whatever_is_readable (ops
, offset
+ xfered
,
2296 offset
+ xfered
+ to_read
, &result
);
2301 struct memory_read_result r
;
2303 r
.begin
= offset
+ xfered
;
2304 r
.end
= r
.begin
+ xfer
;
2305 VEC_safe_push (memory_read_result_s
, result
, &r
);
2315 /* An alternative to target_write with progress callbacks. */
2318 target_write_with_progress (struct target_ops
*ops
,
2319 enum target_object object
,
2320 const char *annex
, const gdb_byte
*buf
,
2321 ULONGEST offset
, LONGEST len
,
2322 void (*progress
) (ULONGEST
, void *), void *baton
)
2326 /* Give the progress callback a chance to set up. */
2328 (*progress
) (0, baton
);
2330 while (xfered
< len
)
2332 ULONGEST xfered_len
;
2333 enum target_xfer_status status
;
2335 status
= target_write_partial (ops
, object
, annex
,
2336 (gdb_byte
*) buf
+ xfered
,
2337 offset
+ xfered
, len
- xfered
,
2340 if (status
== TARGET_XFER_EOF
)
2342 if (TARGET_XFER_STATUS_ERROR_P (status
))
2345 gdb_assert (status
== TARGET_XFER_OK
);
2347 (*progress
) (xfered_len
, baton
);
2349 xfered
+= xfered_len
;
2355 /* For docs on target_write see target.h. */
2358 target_write (struct target_ops
*ops
,
2359 enum target_object object
,
2360 const char *annex
, const gdb_byte
*buf
,
2361 ULONGEST offset
, LONGEST len
)
2363 return target_write_with_progress (ops
, object
, annex
, buf
, offset
, len
,
2367 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2368 the size of the transferred data. PADDING additional bytes are
2369 available in *BUF_P. This is a helper function for
2370 target_read_alloc; see the declaration of that function for more
2374 target_read_alloc_1 (struct target_ops
*ops
, enum target_object object
,
2375 const char *annex
, gdb_byte
**buf_p
, int padding
)
2377 size_t buf_alloc
, buf_pos
;
2380 /* This function does not have a length parameter; it reads the
2381 entire OBJECT). Also, it doesn't support objects fetched partly
2382 from one target and partly from another (in a different stratum,
2383 e.g. a core file and an executable). Both reasons make it
2384 unsuitable for reading memory. */
2385 gdb_assert (object
!= TARGET_OBJECT_MEMORY
);
2387 /* Start by reading up to 4K at a time. The target will throttle
2388 this number down if necessary. */
2390 buf
= xmalloc (buf_alloc
);
2394 ULONGEST xfered_len
;
2395 enum target_xfer_status status
;
2397 status
= target_read_partial (ops
, object
, annex
, &buf
[buf_pos
],
2398 buf_pos
, buf_alloc
- buf_pos
- padding
,
2401 if (status
== TARGET_XFER_EOF
)
2403 /* Read all there was. */
2410 else if (status
!= TARGET_XFER_OK
)
2412 /* An error occurred. */
2414 return TARGET_XFER_E_IO
;
2417 buf_pos
+= xfered_len
;
2419 /* If the buffer is filling up, expand it. */
2420 if (buf_alloc
< buf_pos
* 2)
2423 buf
= xrealloc (buf
, buf_alloc
);
2430 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2431 the size of the transferred data. See the declaration in "target.h"
2432 function for more information about the return value. */
2435 target_read_alloc (struct target_ops
*ops
, enum target_object object
,
2436 const char *annex
, gdb_byte
**buf_p
)
2438 return target_read_alloc_1 (ops
, object
, annex
, buf_p
, 0);
2441 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
2442 returned as a string, allocated using xmalloc. If an error occurs
2443 or the transfer is unsupported, NULL is returned. Empty objects
2444 are returned as allocated but empty strings. A warning is issued
2445 if the result contains any embedded NUL bytes. */
2448 target_read_stralloc (struct target_ops
*ops
, enum target_object object
,
2453 LONGEST i
, transferred
;
2455 transferred
= target_read_alloc_1 (ops
, object
, annex
, &buffer
, 1);
2456 bufstr
= (char *) buffer
;
2458 if (transferred
< 0)
2461 if (transferred
== 0)
2462 return xstrdup ("");
2464 bufstr
[transferred
] = 0;
2466 /* Check for embedded NUL bytes; but allow trailing NULs. */
2467 for (i
= strlen (bufstr
); i
< transferred
; i
++)
2470 warning (_("target object %d, annex %s, "
2471 "contained unexpected null characters"),
2472 (int) object
, annex
? annex
: "(none)");
2479 /* Memory transfer methods. */
2482 get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
, gdb_byte
*buf
,
2485 /* This method is used to read from an alternate, non-current
2486 target. This read must bypass the overlay support (as symbols
2487 don't match this target), and GDB's internal cache (wrong cache
2488 for this target). */
2489 if (target_read (ops
, TARGET_OBJECT_RAW_MEMORY
, NULL
, buf
, addr
, len
)
2491 memory_error (TARGET_XFER_E_IO
, addr
);
2495 get_target_memory_unsigned (struct target_ops
*ops
, CORE_ADDR addr
,
2496 int len
, enum bfd_endian byte_order
)
2498 gdb_byte buf
[sizeof (ULONGEST
)];
2500 gdb_assert (len
<= sizeof (buf
));
2501 get_target_memory (ops
, addr
, buf
, len
);
2502 return extract_unsigned_integer (buf
, len
, byte_order
);
2508 target_insert_breakpoint (struct gdbarch
*gdbarch
,
2509 struct bp_target_info
*bp_tgt
)
2511 if (!may_insert_breakpoints
)
2513 warning (_("May not insert breakpoints"));
2517 return current_target
.to_insert_breakpoint (¤t_target
,
2524 target_remove_breakpoint (struct gdbarch
*gdbarch
,
2525 struct bp_target_info
*bp_tgt
)
2527 /* This is kind of a weird case to handle, but the permission might
2528 have been changed after breakpoints were inserted - in which case
2529 we should just take the user literally and assume that any
2530 breakpoints should be left in place. */
2531 if (!may_insert_breakpoints
)
2533 warning (_("May not remove breakpoints"));
2537 return current_target
.to_remove_breakpoint (¤t_target
,
2542 target_info (char *args
, int from_tty
)
2544 struct target_ops
*t
;
2545 int has_all_mem
= 0;
2547 if (symfile_objfile
!= NULL
)
2548 printf_unfiltered (_("Symbols from \"%s\".\n"),
2549 objfile_name (symfile_objfile
));
2551 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2553 if (!(*t
->to_has_memory
) (t
))
2556 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
2559 printf_unfiltered (_("\tWhile running this, "
2560 "GDB does not access memory from...\n"));
2561 printf_unfiltered ("%s:\n", t
->to_longname
);
2562 (t
->to_files_info
) (t
);
2563 has_all_mem
= (*t
->to_has_all_memory
) (t
);
2567 /* This function is called before any new inferior is created, e.g.
2568 by running a program, attaching, or connecting to a target.
2569 It cleans up any state from previous invocations which might
2570 change between runs. This is a subset of what target_preopen
2571 resets (things which might change between targets). */
2574 target_pre_inferior (int from_tty
)
2576 /* Clear out solib state. Otherwise the solib state of the previous
2577 inferior might have survived and is entirely wrong for the new
2578 target. This has been observed on GNU/Linux using glibc 2.3. How
2590 Cannot access memory at address 0xdeadbeef
2593 /* In some OSs, the shared library list is the same/global/shared
2594 across inferiors. If code is shared between processes, so are
2595 memory regions and features. */
2596 if (!gdbarch_has_global_solist (target_gdbarch ()))
2598 no_shared_libraries (NULL
, from_tty
);
2600 invalidate_target_mem_regions ();
2602 target_clear_description ();
2605 agent_capability_invalidate ();
2608 /* Callback for iterate_over_inferiors. Gets rid of the given
2612 dispose_inferior (struct inferior
*inf
, void *args
)
2614 struct thread_info
*thread
;
2616 thread
= any_thread_of_process (inf
->pid
);
2619 switch_to_thread (thread
->ptid
);
2621 /* Core inferiors actually should be detached, not killed. */
2622 if (target_has_execution
)
2625 target_detach (NULL
, 0);
2631 /* This is to be called by the open routine before it does
2635 target_preopen (int from_tty
)
2639 if (have_inferiors ())
2642 || !have_live_inferiors ()
2643 || query (_("A program is being debugged already. Kill it? ")))
2644 iterate_over_inferiors (dispose_inferior
, NULL
);
2646 error (_("Program not killed."));
2649 /* Calling target_kill may remove the target from the stack. But if
2650 it doesn't (which seems like a win for UDI), remove it now. */
2651 /* Leave the exec target, though. The user may be switching from a
2652 live process to a core of the same program. */
2653 pop_all_targets_above (file_stratum
);
2655 target_pre_inferior (from_tty
);
2658 /* Detach a target after doing deferred register stores. */
2661 target_detach (const char *args
, int from_tty
)
2663 struct target_ops
* t
;
2665 if (gdbarch_has_global_breakpoints (target_gdbarch ()))
2666 /* Don't remove global breakpoints here. They're removed on
2667 disconnection from the target. */
2670 /* If we're in breakpoints-always-inserted mode, have to remove
2671 them before detaching. */
2672 remove_breakpoints_pid (ptid_get_pid (inferior_ptid
));
2674 prepare_for_detach ();
2676 current_target
.to_detach (¤t_target
, args
, from_tty
);
2678 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n",
2683 target_disconnect (char *args
, int from_tty
)
2685 struct target_ops
*t
;
2687 /* If we're in breakpoints-always-inserted mode or if breakpoints
2688 are global across processes, we have to remove them before
2690 remove_breakpoints ();
2692 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2693 if (t
->to_disconnect
!= NULL
)
2696 fprintf_unfiltered (gdb_stdlog
, "target_disconnect (%s, %d)\n",
2698 t
->to_disconnect (t
, args
, from_tty
);
2706 target_wait (ptid_t ptid
, struct target_waitstatus
*status
, int options
)
2708 struct target_ops
*t
;
2709 ptid_t retval
= (current_target
.to_wait
) (¤t_target
, ptid
,
2714 char *status_string
;
2715 char *options_string
;
2717 status_string
= target_waitstatus_to_string (status
);
2718 options_string
= target_options_to_string (options
);
2719 fprintf_unfiltered (gdb_stdlog
,
2720 "target_wait (%d, status, options={%s})"
2722 ptid_get_pid (ptid
), options_string
,
2723 ptid_get_pid (retval
), status_string
);
2724 xfree (status_string
);
2725 xfree (options_string
);
2732 target_pid_to_str (ptid_t ptid
)
2734 struct target_ops
*t
;
2736 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2738 if (t
->to_pid_to_str
!= NULL
)
2739 return (*t
->to_pid_to_str
) (t
, ptid
);
2742 return normal_pid_to_str (ptid
);
2746 target_thread_name (struct thread_info
*info
)
2748 struct target_ops
*t
;
2750 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2752 if (t
->to_thread_name
!= NULL
)
2753 return (*t
->to_thread_name
) (t
, info
);
2760 target_resume (ptid_t ptid
, int step
, enum gdb_signal signal
)
2762 struct target_ops
*t
;
2764 target_dcache_invalidate ();
2766 current_target
.to_resume (¤t_target
, ptid
, step
, signal
);
2768 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n",
2769 ptid_get_pid (ptid
),
2770 step
? "step" : "continue",
2771 gdb_signal_to_name (signal
));
2773 registers_changed_ptid (ptid
);
2774 set_executing (ptid
, 1);
2775 set_running (ptid
, 1);
2776 clear_inline_frame_state (ptid
);
2780 target_pass_signals (int numsigs
, unsigned char *pass_signals
)
2782 struct target_ops
*t
;
2784 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2786 if (t
->to_pass_signals
!= NULL
)
2792 fprintf_unfiltered (gdb_stdlog
, "target_pass_signals (%d, {",
2795 for (i
= 0; i
< numsigs
; i
++)
2796 if (pass_signals
[i
])
2797 fprintf_unfiltered (gdb_stdlog
, " %s",
2798 gdb_signal_to_name (i
));
2800 fprintf_unfiltered (gdb_stdlog
, " })\n");
2803 (*t
->to_pass_signals
) (t
, numsigs
, pass_signals
);
2810 target_program_signals (int numsigs
, unsigned char *program_signals
)
2812 struct target_ops
*t
;
2814 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2816 if (t
->to_program_signals
!= NULL
)
2822 fprintf_unfiltered (gdb_stdlog
, "target_program_signals (%d, {",
2825 for (i
= 0; i
< numsigs
; i
++)
2826 if (program_signals
[i
])
2827 fprintf_unfiltered (gdb_stdlog
, " %s",
2828 gdb_signal_to_name (i
));
2830 fprintf_unfiltered (gdb_stdlog
, " })\n");
2833 (*t
->to_program_signals
) (t
, numsigs
, program_signals
);
2839 /* Look through the list of possible targets for a target that can
2843 target_follow_fork (int follow_child
, int detach_fork
)
2845 struct target_ops
*t
;
2847 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2849 if (t
->to_follow_fork
!= NULL
)
2851 int retval
= t
->to_follow_fork (t
, follow_child
, detach_fork
);
2854 fprintf_unfiltered (gdb_stdlog
,
2855 "target_follow_fork (%d, %d) = %d\n",
2856 follow_child
, detach_fork
, retval
);
2861 /* Some target returned a fork event, but did not know how to follow it. */
2862 internal_error (__FILE__
, __LINE__
,
2863 _("could not find a target to follow fork"));
2867 target_mourn_inferior (void)
2869 struct target_ops
*t
;
2871 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2873 if (t
->to_mourn_inferior
!= NULL
)
2875 t
->to_mourn_inferior (t
);
2877 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2879 /* We no longer need to keep handles on any of the object files.
2880 Make sure to release them to avoid unnecessarily locking any
2881 of them while we're not actually debugging. */
2882 bfd_cache_close_all ();
2888 internal_error (__FILE__
, __LINE__
,
2889 _("could not find a target to follow mourn inferior"));
2892 /* Look for a target which can describe architectural features, starting
2893 from TARGET. If we find one, return its description. */
2895 const struct target_desc
*
2896 target_read_description (struct target_ops
*target
)
2898 struct target_ops
*t
;
2900 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
2901 if (t
->to_read_description
!= NULL
)
2903 const struct target_desc
*tdesc
;
2905 tdesc
= t
->to_read_description (t
);
2913 /* The default implementation of to_search_memory.
2914 This implements a basic search of memory, reading target memory and
2915 performing the search here (as opposed to performing the search in on the
2916 target side with, for example, gdbserver). */
2919 simple_search_memory (struct target_ops
*ops
,
2920 CORE_ADDR start_addr
, ULONGEST search_space_len
,
2921 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2922 CORE_ADDR
*found_addrp
)
2924 /* NOTE: also defined in find.c testcase. */
2925 #define SEARCH_CHUNK_SIZE 16000
2926 const unsigned chunk_size
= SEARCH_CHUNK_SIZE
;
2927 /* Buffer to hold memory contents for searching. */
2928 gdb_byte
*search_buf
;
2929 unsigned search_buf_size
;
2930 struct cleanup
*old_cleanups
;
2932 search_buf_size
= chunk_size
+ pattern_len
- 1;
2934 /* No point in trying to allocate a buffer larger than the search space. */
2935 if (search_space_len
< search_buf_size
)
2936 search_buf_size
= search_space_len
;
2938 search_buf
= malloc (search_buf_size
);
2939 if (search_buf
== NULL
)
2940 error (_("Unable to allocate memory to perform the search."));
2941 old_cleanups
= make_cleanup (free_current_contents
, &search_buf
);
2943 /* Prime the search buffer. */
2945 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2946 search_buf
, start_addr
, search_buf_size
) != search_buf_size
)
2948 warning (_("Unable to access %s bytes of target "
2949 "memory at %s, halting search."),
2950 pulongest (search_buf_size
), hex_string (start_addr
));
2951 do_cleanups (old_cleanups
);
2955 /* Perform the search.
2957 The loop is kept simple by allocating [N + pattern-length - 1] bytes.
2958 When we've scanned N bytes we copy the trailing bytes to the start and
2959 read in another N bytes. */
2961 while (search_space_len
>= pattern_len
)
2963 gdb_byte
*found_ptr
;
2964 unsigned nr_search_bytes
= min (search_space_len
, search_buf_size
);
2966 found_ptr
= memmem (search_buf
, nr_search_bytes
,
2967 pattern
, pattern_len
);
2969 if (found_ptr
!= NULL
)
2971 CORE_ADDR found_addr
= start_addr
+ (found_ptr
- search_buf
);
2973 *found_addrp
= found_addr
;
2974 do_cleanups (old_cleanups
);
2978 /* Not found in this chunk, skip to next chunk. */
2980 /* Don't let search_space_len wrap here, it's unsigned. */
2981 if (search_space_len
>= chunk_size
)
2982 search_space_len
-= chunk_size
;
2984 search_space_len
= 0;
2986 if (search_space_len
>= pattern_len
)
2988 unsigned keep_len
= search_buf_size
- chunk_size
;
2989 CORE_ADDR read_addr
= start_addr
+ chunk_size
+ keep_len
;
2992 /* Copy the trailing part of the previous iteration to the front
2993 of the buffer for the next iteration. */
2994 gdb_assert (keep_len
== pattern_len
- 1);
2995 memcpy (search_buf
, search_buf
+ chunk_size
, keep_len
);
2997 nr_to_read
= min (search_space_len
- keep_len
, chunk_size
);
2999 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
3000 search_buf
+ keep_len
, read_addr
,
3001 nr_to_read
) != nr_to_read
)
3003 warning (_("Unable to access %s bytes of target "
3004 "memory at %s, halting search."),
3005 plongest (nr_to_read
),
3006 hex_string (read_addr
));
3007 do_cleanups (old_cleanups
);
3011 start_addr
+= chunk_size
;
3017 do_cleanups (old_cleanups
);
3021 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
3022 sequence of bytes in PATTERN with length PATTERN_LEN.
3024 The result is 1 if found, 0 if not found, and -1 if there was an error
3025 requiring halting of the search (e.g. memory read error).
3026 If the pattern is found the address is recorded in FOUND_ADDRP. */
3029 target_search_memory (CORE_ADDR start_addr
, ULONGEST search_space_len
,
3030 const gdb_byte
*pattern
, ULONGEST pattern_len
,
3031 CORE_ADDR
*found_addrp
)
3033 struct target_ops
*t
;
3036 /* We don't use INHERIT to set current_target.to_search_memory,
3037 so we have to scan the target stack and handle targetdebug
3041 fprintf_unfiltered (gdb_stdlog
, "target_search_memory (%s, ...)\n",
3042 hex_string (start_addr
));
3044 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3045 if (t
->to_search_memory
!= NULL
)
3050 found
= t
->to_search_memory (t
, start_addr
, search_space_len
,
3051 pattern
, pattern_len
, found_addrp
);
3055 /* If a special version of to_search_memory isn't available, use the
3057 found
= simple_search_memory (current_target
.beneath
,
3058 start_addr
, search_space_len
,
3059 pattern
, pattern_len
, found_addrp
);
3063 fprintf_unfiltered (gdb_stdlog
, " = %d\n", found
);
3068 /* Look through the currently pushed targets. If none of them will
3069 be able to restart the currently running process, issue an error
3073 target_require_runnable (void)
3075 struct target_ops
*t
;
3077 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
3079 /* If this target knows how to create a new program, then
3080 assume we will still be able to after killing the current
3081 one. Either killing and mourning will not pop T, or else
3082 find_default_run_target will find it again. */
3083 if (t
->to_create_inferior
!= NULL
)
3086 /* Do not worry about thread_stratum targets that can not
3087 create inferiors. Assume they will be pushed again if
3088 necessary, and continue to the process_stratum. */
3089 if (t
->to_stratum
== thread_stratum
3090 || t
->to_stratum
== arch_stratum
)
3093 error (_("The \"%s\" target does not support \"run\". "
3094 "Try \"help target\" or \"continue\"."),
3098 /* This function is only called if the target is running. In that
3099 case there should have been a process_stratum target and it
3100 should either know how to create inferiors, or not... */
3101 internal_error (__FILE__
, __LINE__
, _("No targets found"));
3104 /* Look through the list of possible targets for a target that can
3105 execute a run or attach command without any other data. This is
3106 used to locate the default process stratum.
3108 If DO_MESG is not NULL, the result is always valid (error() is
3109 called for errors); else, return NULL on error. */
3111 static struct target_ops
*
3112 find_default_run_target (char *do_mesg
)
3114 struct target_ops
**t
;
3115 struct target_ops
*runable
= NULL
;
3120 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
3123 if ((*t
)->to_can_run
&& target_can_run (*t
))
3133 error (_("Don't know how to %s. Try \"help target\"."), do_mesg
);
3142 find_default_attach (struct target_ops
*ops
, char *args
, int from_tty
)
3144 struct target_ops
*t
;
3146 t
= find_default_run_target ("attach");
3147 (t
->to_attach
) (t
, args
, from_tty
);
3152 find_default_create_inferior (struct target_ops
*ops
,
3153 char *exec_file
, char *allargs
, char **env
,
3156 struct target_ops
*t
;
3158 t
= find_default_run_target ("run");
3159 (t
->to_create_inferior
) (t
, exec_file
, allargs
, env
, from_tty
);
3164 find_default_can_async_p (struct target_ops
*ignore
)
3166 struct target_ops
*t
;
3168 /* This may be called before the target is pushed on the stack;
3169 look for the default process stratum. If there's none, gdb isn't
3170 configured with a native debugger, and target remote isn't
3172 t
= find_default_run_target (NULL
);
3173 if (t
&& t
->to_can_async_p
!= delegate_can_async_p
)
3174 return (t
->to_can_async_p
) (t
);
3179 find_default_is_async_p (struct target_ops
*ignore
)
3181 struct target_ops
*t
;
3183 /* This may be called before the target is pushed on the stack;
3184 look for the default process stratum. If there's none, gdb isn't
3185 configured with a native debugger, and target remote isn't
3187 t
= find_default_run_target (NULL
);
3188 if (t
&& t
->to_is_async_p
!= delegate_is_async_p
)
3189 return (t
->to_is_async_p
) (t
);
3194 find_default_supports_non_stop (struct target_ops
*self
)
3196 struct target_ops
*t
;
3198 t
= find_default_run_target (NULL
);
3199 if (t
&& t
->to_supports_non_stop
)
3200 return (t
->to_supports_non_stop
) (t
);
3205 target_supports_non_stop (void)
3207 struct target_ops
*t
;
3209 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3210 if (t
->to_supports_non_stop
)
3211 return t
->to_supports_non_stop (t
);
3216 /* Implement the "info proc" command. */
3219 target_info_proc (char *args
, enum info_proc_what what
)
3221 struct target_ops
*t
;
3223 /* If we're already connected to something that can get us OS
3224 related data, use it. Otherwise, try using the native
3226 if (current_target
.to_stratum
>= process_stratum
)
3227 t
= current_target
.beneath
;
3229 t
= find_default_run_target (NULL
);
3231 for (; t
!= NULL
; t
= t
->beneath
)
3233 if (t
->to_info_proc
!= NULL
)
3235 t
->to_info_proc (t
, args
, what
);
3238 fprintf_unfiltered (gdb_stdlog
,
3239 "target_info_proc (\"%s\", %d)\n", args
, what
);
3249 find_default_supports_disable_randomization (struct target_ops
*self
)
3251 struct target_ops
*t
;
3253 t
= find_default_run_target (NULL
);
3254 if (t
&& t
->to_supports_disable_randomization
)
3255 return (t
->to_supports_disable_randomization
) (t
);
3260 target_supports_disable_randomization (void)
3262 struct target_ops
*t
;
3264 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3265 if (t
->to_supports_disable_randomization
)
3266 return t
->to_supports_disable_randomization (t
);
3272 target_get_osdata (const char *type
)
3274 struct target_ops
*t
;
3276 /* If we're already connected to something that can get us OS
3277 related data, use it. Otherwise, try using the native
3279 if (current_target
.to_stratum
>= process_stratum
)
3280 t
= current_target
.beneath
;
3282 t
= find_default_run_target ("get OS data");
3287 return target_read_stralloc (t
, TARGET_OBJECT_OSDATA
, type
);
3290 /* Determine the current address space of thread PTID. */
3292 struct address_space
*
3293 target_thread_address_space (ptid_t ptid
)
3295 struct address_space
*aspace
;
3296 struct inferior
*inf
;
3297 struct target_ops
*t
;
3299 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3301 if (t
->to_thread_address_space
!= NULL
)
3303 aspace
= t
->to_thread_address_space (t
, ptid
);
3304 gdb_assert (aspace
);
3307 fprintf_unfiltered (gdb_stdlog
,
3308 "target_thread_address_space (%s) = %d\n",
3309 target_pid_to_str (ptid
),
3310 address_space_num (aspace
));
3315 /* Fall-back to the "main" address space of the inferior. */
3316 inf
= find_inferior_pid (ptid_get_pid (ptid
));
3318 if (inf
== NULL
|| inf
->aspace
== NULL
)
3319 internal_error (__FILE__
, __LINE__
,
3320 _("Can't determine the current "
3321 "address space of thread %s\n"),
3322 target_pid_to_str (ptid
));
3328 /* Target file operations. */
3330 static struct target_ops
*
3331 default_fileio_target (void)
3333 /* If we're already connected to something that can perform
3334 file I/O, use it. Otherwise, try using the native target. */
3335 if (current_target
.to_stratum
>= process_stratum
)
3336 return current_target
.beneath
;
3338 return find_default_run_target ("file I/O");
3341 /* Open FILENAME on the target, using FLAGS and MODE. Return a
3342 target file descriptor, or -1 if an error occurs (and set
3345 target_fileio_open (const char *filename
, int flags
, int mode
,
3348 struct target_ops
*t
;
3350 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3352 if (t
->to_fileio_open
!= NULL
)
3354 int fd
= t
->to_fileio_open (t
, filename
, flags
, mode
, target_errno
);
3357 fprintf_unfiltered (gdb_stdlog
,
3358 "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n",
3359 filename
, flags
, mode
,
3360 fd
, fd
!= -1 ? 0 : *target_errno
);
3365 *target_errno
= FILEIO_ENOSYS
;
3369 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
3370 Return the number of bytes written, or -1 if an error occurs
3371 (and set *TARGET_ERRNO). */
3373 target_fileio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
3374 ULONGEST offset
, int *target_errno
)
3376 struct target_ops
*t
;
3378 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3380 if (t
->to_fileio_pwrite
!= NULL
)
3382 int ret
= t
->to_fileio_pwrite (t
, fd
, write_buf
, len
, offset
,
3386 fprintf_unfiltered (gdb_stdlog
,
3387 "target_fileio_pwrite (%d,...,%d,%s) "
3389 fd
, len
, pulongest (offset
),
3390 ret
, ret
!= -1 ? 0 : *target_errno
);
3395 *target_errno
= FILEIO_ENOSYS
;
3399 /* Read up to LEN bytes FD on the target into READ_BUF.
3400 Return the number of bytes read, or -1 if an error occurs
3401 (and set *TARGET_ERRNO). */
3403 target_fileio_pread (int fd
, gdb_byte
*read_buf
, int len
,
3404 ULONGEST offset
, int *target_errno
)
3406 struct target_ops
*t
;
3408 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3410 if (t
->to_fileio_pread
!= NULL
)
3412 int ret
= t
->to_fileio_pread (t
, fd
, read_buf
, len
, offset
,
3416 fprintf_unfiltered (gdb_stdlog
,
3417 "target_fileio_pread (%d,...,%d,%s) "
3419 fd
, len
, pulongest (offset
),
3420 ret
, ret
!= -1 ? 0 : *target_errno
);
3425 *target_errno
= FILEIO_ENOSYS
;
3429 /* Close FD on the target. Return 0, or -1 if an error occurs
3430 (and set *TARGET_ERRNO). */
3432 target_fileio_close (int fd
, int *target_errno
)
3434 struct target_ops
*t
;
3436 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3438 if (t
->to_fileio_close
!= NULL
)
3440 int ret
= t
->to_fileio_close (t
, fd
, target_errno
);
3443 fprintf_unfiltered (gdb_stdlog
,
3444 "target_fileio_close (%d) = %d (%d)\n",
3445 fd
, ret
, ret
!= -1 ? 0 : *target_errno
);
3450 *target_errno
= FILEIO_ENOSYS
;
3454 /* Unlink FILENAME on the target. Return 0, or -1 if an error
3455 occurs (and set *TARGET_ERRNO). */
3457 target_fileio_unlink (const char *filename
, int *target_errno
)
3459 struct target_ops
*t
;
3461 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3463 if (t
->to_fileio_unlink
!= NULL
)
3465 int ret
= t
->to_fileio_unlink (t
, filename
, target_errno
);
3468 fprintf_unfiltered (gdb_stdlog
,
3469 "target_fileio_unlink (%s) = %d (%d)\n",
3470 filename
, ret
, ret
!= -1 ? 0 : *target_errno
);
3475 *target_errno
= FILEIO_ENOSYS
;
3479 /* Read value of symbolic link FILENAME on the target. Return a
3480 null-terminated string allocated via xmalloc, or NULL if an error
3481 occurs (and set *TARGET_ERRNO). */
3483 target_fileio_readlink (const char *filename
, int *target_errno
)
3485 struct target_ops
*t
;
3487 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3489 if (t
->to_fileio_readlink
!= NULL
)
3491 char *ret
= t
->to_fileio_readlink (t
, filename
, target_errno
);
3494 fprintf_unfiltered (gdb_stdlog
,
3495 "target_fileio_readlink (%s) = %s (%d)\n",
3496 filename
, ret
? ret
: "(nil)",
3497 ret
? 0 : *target_errno
);
3502 *target_errno
= FILEIO_ENOSYS
;
3507 target_fileio_close_cleanup (void *opaque
)
3509 int fd
= *(int *) opaque
;
3512 target_fileio_close (fd
, &target_errno
);
3515 /* Read target file FILENAME. Store the result in *BUF_P and
3516 return the size of the transferred data. PADDING additional bytes are
3517 available in *BUF_P. This is a helper function for
3518 target_fileio_read_alloc; see the declaration of that function for more
3522 target_fileio_read_alloc_1 (const char *filename
,
3523 gdb_byte
**buf_p
, int padding
)
3525 struct cleanup
*close_cleanup
;
3526 size_t buf_alloc
, buf_pos
;
3532 fd
= target_fileio_open (filename
, FILEIO_O_RDONLY
, 0700, &target_errno
);
3536 close_cleanup
= make_cleanup (target_fileio_close_cleanup
, &fd
);
3538 /* Start by reading up to 4K at a time. The target will throttle
3539 this number down if necessary. */
3541 buf
= xmalloc (buf_alloc
);
3545 n
= target_fileio_pread (fd
, &buf
[buf_pos
],
3546 buf_alloc
- buf_pos
- padding
, buf_pos
,
3550 /* An error occurred. */
3551 do_cleanups (close_cleanup
);
3557 /* Read all there was. */
3558 do_cleanups (close_cleanup
);
3568 /* If the buffer is filling up, expand it. */
3569 if (buf_alloc
< buf_pos
* 2)
3572 buf
= xrealloc (buf
, buf_alloc
);
3579 /* Read target file FILENAME. Store the result in *BUF_P and return
3580 the size of the transferred data. See the declaration in "target.h"
3581 function for more information about the return value. */
3584 target_fileio_read_alloc (const char *filename
, gdb_byte
**buf_p
)
3586 return target_fileio_read_alloc_1 (filename
, buf_p
, 0);
3589 /* Read target file FILENAME. The result is NUL-terminated and
3590 returned as a string, allocated using xmalloc. If an error occurs
3591 or the transfer is unsupported, NULL is returned. Empty objects
3592 are returned as allocated but empty strings. A warning is issued
3593 if the result contains any embedded NUL bytes. */
3596 target_fileio_read_stralloc (const char *filename
)
3600 LONGEST i
, transferred
;
3602 transferred
= target_fileio_read_alloc_1 (filename
, &buffer
, 1);
3603 bufstr
= (char *) buffer
;
3605 if (transferred
< 0)
3608 if (transferred
== 0)
3609 return xstrdup ("");
3611 bufstr
[transferred
] = 0;
3613 /* Check for embedded NUL bytes; but allow trailing NULs. */
3614 for (i
= strlen (bufstr
); i
< transferred
; i
++)
3617 warning (_("target file %s "
3618 "contained unexpected null characters"),
3628 default_region_ok_for_hw_watchpoint (struct target_ops
*self
,
3629 CORE_ADDR addr
, int len
)
3631 return (len
<= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT
);
3635 default_watchpoint_addr_within_range (struct target_ops
*target
,
3637 CORE_ADDR start
, int length
)
3639 return addr
>= start
&& addr
< start
+ length
;
3642 static struct gdbarch
*
3643 default_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
3645 return target_gdbarch ();
3661 return_minus_one (void)
3673 * Find the next target down the stack from the specified target.
3677 find_target_beneath (struct target_ops
*t
)
3685 find_target_at (enum strata stratum
)
3687 struct target_ops
*t
;
3689 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3690 if (t
->to_stratum
== stratum
)
3697 /* The inferior process has died. Long live the inferior! */
3700 generic_mourn_inferior (void)
3704 ptid
= inferior_ptid
;
3705 inferior_ptid
= null_ptid
;
3707 /* Mark breakpoints uninserted in case something tries to delete a
3708 breakpoint while we delete the inferior's threads (which would
3709 fail, since the inferior is long gone). */
3710 mark_breakpoints_out ();
3712 if (!ptid_equal (ptid
, null_ptid
))
3714 int pid
= ptid_get_pid (ptid
);
3715 exit_inferior (pid
);
3718 /* Note this wipes step-resume breakpoints, so needs to be done
3719 after exit_inferior, which ends up referencing the step-resume
3720 breakpoints through clear_thread_inferior_resources. */
3721 breakpoint_init_inferior (inf_exited
);
3723 registers_changed ();
3725 reopen_exec_file ();
3726 reinit_frame_cache ();
3728 if (deprecated_detach_hook
)
3729 deprecated_detach_hook ();
3732 /* Convert a normal process ID to a string. Returns the string in a
3736 normal_pid_to_str (ptid_t ptid
)
3738 static char buf
[32];
3740 xsnprintf (buf
, sizeof buf
, "process %d", ptid_get_pid (ptid
));
3745 dummy_pid_to_str (struct target_ops
*ops
, ptid_t ptid
)
3747 return normal_pid_to_str (ptid
);
3750 /* Error-catcher for target_find_memory_regions. */
3752 dummy_find_memory_regions (struct target_ops
*self
,
3753 find_memory_region_ftype ignore1
, void *ignore2
)
3755 error (_("Command not implemented for this target."));
3759 /* Error-catcher for target_make_corefile_notes. */
3761 dummy_make_corefile_notes (struct target_ops
*self
,
3762 bfd
*ignore1
, int *ignore2
)
3764 error (_("Command not implemented for this target."));
3768 /* Error-catcher for target_get_bookmark. */
3770 dummy_get_bookmark (struct target_ops
*self
, char *ignore1
, int ignore2
)
3776 /* Error-catcher for target_goto_bookmark. */
3778 dummy_goto_bookmark (struct target_ops
*self
, gdb_byte
*ignore
, int from_tty
)
3783 /* Set up the handful of non-empty slots needed by the dummy target
3787 init_dummy_target (void)
3789 dummy_target
.to_shortname
= "None";
3790 dummy_target
.to_longname
= "None";
3791 dummy_target
.to_doc
= "";
3792 dummy_target
.to_create_inferior
= find_default_create_inferior
;
3793 dummy_target
.to_supports_non_stop
= find_default_supports_non_stop
;
3794 dummy_target
.to_supports_disable_randomization
3795 = find_default_supports_disable_randomization
;
3796 dummy_target
.to_pid_to_str
= dummy_pid_to_str
;
3797 dummy_target
.to_stratum
= dummy_stratum
;
3798 dummy_target
.to_find_memory_regions
= dummy_find_memory_regions
;
3799 dummy_target
.to_make_corefile_notes
= dummy_make_corefile_notes
;
3800 dummy_target
.to_get_bookmark
= dummy_get_bookmark
;
3801 dummy_target
.to_goto_bookmark
= dummy_goto_bookmark
;
3802 dummy_target
.to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
3803 dummy_target
.to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
3804 dummy_target
.to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
3805 dummy_target
.to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
3806 dummy_target
.to_has_execution
3807 = (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
3808 dummy_target
.to_magic
= OPS_MAGIC
;
3810 install_dummy_methods (&dummy_target
);
3814 debug_to_open (char *args
, int from_tty
)
3816 debug_target
.to_open (args
, from_tty
);
3818 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
3822 target_close (struct target_ops
*targ
)
3824 gdb_assert (!target_is_pushed (targ
));
3826 if (targ
->to_xclose
!= NULL
)
3827 targ
->to_xclose (targ
);
3828 else if (targ
->to_close
!= NULL
)
3829 targ
->to_close (targ
);
3832 fprintf_unfiltered (gdb_stdlog
, "target_close ()\n");
3836 target_attach (char *args
, int from_tty
)
3838 current_target
.to_attach (¤t_target
, args
, from_tty
);
3840 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n",
3845 target_thread_alive (ptid_t ptid
)
3847 struct target_ops
*t
;
3849 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3851 if (t
->to_thread_alive
!= NULL
)
3855 retval
= t
->to_thread_alive (t
, ptid
);
3857 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
3858 ptid_get_pid (ptid
), retval
);
3868 target_find_new_threads (void)
3870 struct target_ops
*t
;
3872 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3874 if (t
->to_find_new_threads
!= NULL
)
3876 t
->to_find_new_threads (t
);
3878 fprintf_unfiltered (gdb_stdlog
, "target_find_new_threads ()\n");
3886 target_stop (ptid_t ptid
)
3890 warning (_("May not interrupt or stop the target, ignoring attempt"));
3894 (*current_target
.to_stop
) (¤t_target
, ptid
);
3898 debug_to_post_attach (struct target_ops
*self
, int pid
)
3900 debug_target
.to_post_attach (&debug_target
, pid
);
3902 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
3905 /* Concatenate ELEM to LIST, a comma separate list, and return the
3906 result. The LIST incoming argument is released. */
3909 str_comma_list_concat_elem (char *list
, const char *elem
)
3912 return xstrdup (elem
);
3914 return reconcat (list
, list
, ", ", elem
, (char *) NULL
);
3917 /* Helper for target_options_to_string. If OPT is present in
3918 TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET.
3919 Returns the new resulting string. OPT is removed from
3923 do_option (int *target_options
, char *ret
,
3924 int opt
, char *opt_str
)
3926 if ((*target_options
& opt
) != 0)
3928 ret
= str_comma_list_concat_elem (ret
, opt_str
);
3929 *target_options
&= ~opt
;
3936 target_options_to_string (int target_options
)
3940 #define DO_TARG_OPTION(OPT) \
3941 ret = do_option (&target_options, ret, OPT, #OPT)
3943 DO_TARG_OPTION (TARGET_WNOHANG
);
3945 if (target_options
!= 0)
3946 ret
= str_comma_list_concat_elem (ret
, "unknown???");
3954 debug_print_register (const char * func
,
3955 struct regcache
*regcache
, int regno
)
3957 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
3959 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
3960 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
)
3961 && gdbarch_register_name (gdbarch
, regno
) != NULL
3962 && gdbarch_register_name (gdbarch
, regno
)[0] != '\0')
3963 fprintf_unfiltered (gdb_stdlog
, "(%s)",
3964 gdbarch_register_name (gdbarch
, regno
));
3966 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
3967 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
))
3969 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
3970 int i
, size
= register_size (gdbarch
, regno
);
3971 gdb_byte buf
[MAX_REGISTER_SIZE
];
3973 regcache_raw_collect (regcache
, regno
, buf
);
3974 fprintf_unfiltered (gdb_stdlog
, " = ");
3975 for (i
= 0; i
< size
; i
++)
3977 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
3979 if (size
<= sizeof (LONGEST
))
3981 ULONGEST val
= extract_unsigned_integer (buf
, size
, byte_order
);
3983 fprintf_unfiltered (gdb_stdlog
, " %s %s",
3984 core_addr_to_string_nz (val
), plongest (val
));
3987 fprintf_unfiltered (gdb_stdlog
, "\n");
3991 target_fetch_registers (struct regcache
*regcache
, int regno
)
3993 struct target_ops
*t
;
3995 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3997 if (t
->to_fetch_registers
!= NULL
)
3999 t
->to_fetch_registers (t
, regcache
, regno
);
4001 debug_print_register ("target_fetch_registers", regcache
, regno
);
4008 target_store_registers (struct regcache
*regcache
, int regno
)
4010 struct target_ops
*t
;
4012 if (!may_write_registers
)
4013 error (_("Writing to registers is not allowed (regno %d)"), regno
);
4015 current_target
.to_store_registers (¤t_target
, regcache
, regno
);
4018 debug_print_register ("target_store_registers", regcache
, regno
);
4023 target_core_of_thread (ptid_t ptid
)
4025 struct target_ops
*t
;
4027 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4029 if (t
->to_core_of_thread
!= NULL
)
4031 int retval
= t
->to_core_of_thread (t
, ptid
);
4034 fprintf_unfiltered (gdb_stdlog
,
4035 "target_core_of_thread (%d) = %d\n",
4036 ptid_get_pid (ptid
), retval
);
4045 target_verify_memory (const gdb_byte
*data
, CORE_ADDR memaddr
, ULONGEST size
)
4047 struct target_ops
*t
;
4049 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4051 if (t
->to_verify_memory
!= NULL
)
4053 int retval
= t
->to_verify_memory (t
, data
, memaddr
, size
);
4056 fprintf_unfiltered (gdb_stdlog
,
4057 "target_verify_memory (%s, %s) = %d\n",
4058 paddress (target_gdbarch (), memaddr
),
4068 /* The documentation for this function is in its prototype declaration in
4072 target_insert_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4074 struct target_ops
*t
;
4076 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4077 if (t
->to_insert_mask_watchpoint
!= NULL
)
4081 ret
= t
->to_insert_mask_watchpoint (t
, addr
, mask
, rw
);
4084 fprintf_unfiltered (gdb_stdlog
, "\
4085 target_insert_mask_watchpoint (%s, %s, %d) = %d\n",
4086 core_addr_to_string (addr
),
4087 core_addr_to_string (mask
), rw
, ret
);
4095 /* The documentation for this function is in its prototype declaration in
4099 target_remove_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4101 struct target_ops
*t
;
4103 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4104 if (t
->to_remove_mask_watchpoint
!= NULL
)
4108 ret
= t
->to_remove_mask_watchpoint (t
, addr
, mask
, rw
);
4111 fprintf_unfiltered (gdb_stdlog
, "\
4112 target_remove_mask_watchpoint (%s, %s, %d) = %d\n",
4113 core_addr_to_string (addr
),
4114 core_addr_to_string (mask
), rw
, ret
);
4122 /* The documentation for this function is in its prototype declaration
4126 target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
)
4128 struct target_ops
*t
;
4130 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4131 if (t
->to_masked_watch_num_registers
!= NULL
)
4132 return t
->to_masked_watch_num_registers (t
, addr
, mask
);
4137 /* The documentation for this function is in its prototype declaration
4141 target_ranged_break_num_registers (void)
4143 struct target_ops
*t
;
4145 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4146 if (t
->to_ranged_break_num_registers
!= NULL
)
4147 return t
->to_ranged_break_num_registers (t
);
4154 struct btrace_target_info
*
4155 target_enable_btrace (ptid_t ptid
)
4157 struct target_ops
*t
;
4159 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4160 if (t
->to_enable_btrace
!= NULL
)
4161 return t
->to_enable_btrace (t
, ptid
);
4170 target_disable_btrace (struct btrace_target_info
*btinfo
)
4172 struct target_ops
*t
;
4174 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4175 if (t
->to_disable_btrace
!= NULL
)
4177 t
->to_disable_btrace (t
, btinfo
);
4187 target_teardown_btrace (struct btrace_target_info
*btinfo
)
4189 struct target_ops
*t
;
4191 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4192 if (t
->to_teardown_btrace
!= NULL
)
4194 t
->to_teardown_btrace (t
, btinfo
);
4204 target_read_btrace (VEC (btrace_block_s
) **btrace
,
4205 struct btrace_target_info
*btinfo
,
4206 enum btrace_read_type type
)
4208 struct target_ops
*t
;
4210 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4211 if (t
->to_read_btrace
!= NULL
)
4212 return t
->to_read_btrace (t
, btrace
, btinfo
, type
);
4215 return BTRACE_ERR_NOT_SUPPORTED
;
4221 target_stop_recording (void)
4223 struct target_ops
*t
;
4225 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4226 if (t
->to_stop_recording
!= NULL
)
4228 t
->to_stop_recording (t
);
4232 /* This is optional. */
4238 target_info_record (void)
4240 struct target_ops
*t
;
4242 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4243 if (t
->to_info_record
!= NULL
)
4245 t
->to_info_record (t
);
4255 target_save_record (const char *filename
)
4257 struct target_ops
*t
;
4259 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4260 if (t
->to_save_record
!= NULL
)
4262 t
->to_save_record (t
, filename
);
4272 target_supports_delete_record (void)
4274 struct target_ops
*t
;
4276 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4277 if (t
->to_delete_record
!= NULL
)
4286 target_delete_record (void)
4288 struct target_ops
*t
;
4290 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4291 if (t
->to_delete_record
!= NULL
)
4293 t
->to_delete_record (t
);
4303 target_record_is_replaying (void)
4305 struct target_ops
*t
;
4307 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4308 if (t
->to_record_is_replaying
!= NULL
)
4309 return t
->to_record_is_replaying (t
);
4317 target_goto_record_begin (void)
4319 struct target_ops
*t
;
4321 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4322 if (t
->to_goto_record_begin
!= NULL
)
4324 t
->to_goto_record_begin (t
);
4334 target_goto_record_end (void)
4336 struct target_ops
*t
;
4338 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4339 if (t
->to_goto_record_end
!= NULL
)
4341 t
->to_goto_record_end (t
);
4351 target_goto_record (ULONGEST insn
)
4353 struct target_ops
*t
;
4355 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4356 if (t
->to_goto_record
!= NULL
)
4358 t
->to_goto_record (t
, insn
);
4368 target_insn_history (int size
, int flags
)
4370 struct target_ops
*t
;
4372 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4373 if (t
->to_insn_history
!= NULL
)
4375 t
->to_insn_history (t
, size
, flags
);
4385 target_insn_history_from (ULONGEST from
, int size
, int flags
)
4387 struct target_ops
*t
;
4389 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4390 if (t
->to_insn_history_from
!= NULL
)
4392 t
->to_insn_history_from (t
, from
, size
, flags
);
4402 target_insn_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4404 struct target_ops
*t
;
4406 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4407 if (t
->to_insn_history_range
!= NULL
)
4409 t
->to_insn_history_range (t
, begin
, end
, flags
);
4419 target_call_history (int size
, int flags
)
4421 struct target_ops
*t
;
4423 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4424 if (t
->to_call_history
!= NULL
)
4426 t
->to_call_history (t
, size
, flags
);
4436 target_call_history_from (ULONGEST begin
, int size
, int flags
)
4438 struct target_ops
*t
;
4440 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4441 if (t
->to_call_history_from
!= NULL
)
4443 t
->to_call_history_from (t
, begin
, size
, flags
);
4453 target_call_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4455 struct target_ops
*t
;
4457 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4458 if (t
->to_call_history_range
!= NULL
)
4460 t
->to_call_history_range (t
, begin
, end
, flags
);
4468 debug_to_prepare_to_store (struct target_ops
*self
, struct regcache
*regcache
)
4470 debug_target
.to_prepare_to_store (&debug_target
, regcache
);
4472 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
4477 const struct frame_unwind
*
4478 target_get_unwinder (void)
4480 struct target_ops
*t
;
4482 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4483 if (t
->to_get_unwinder
!= NULL
)
4484 return t
->to_get_unwinder
;
4491 const struct frame_unwind
*
4492 target_get_tailcall_unwinder (void)
4494 struct target_ops
*t
;
4496 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4497 if (t
->to_get_tailcall_unwinder
!= NULL
)
4498 return t
->to_get_tailcall_unwinder
;
4506 forward_target_decr_pc_after_break (struct target_ops
*ops
,
4507 struct gdbarch
*gdbarch
)
4509 for (; ops
!= NULL
; ops
= ops
->beneath
)
4510 if (ops
->to_decr_pc_after_break
!= NULL
)
4511 return ops
->to_decr_pc_after_break (ops
, gdbarch
);
4513 return gdbarch_decr_pc_after_break (gdbarch
);
4519 target_decr_pc_after_break (struct gdbarch
*gdbarch
)
4521 return forward_target_decr_pc_after_break (current_target
.beneath
, gdbarch
);
4525 deprecated_debug_xfer_memory (CORE_ADDR memaddr
, bfd_byte
*myaddr
, int len
,
4526 int write
, struct mem_attrib
*attrib
,
4527 struct target_ops
*target
)
4531 retval
= debug_target
.deprecated_xfer_memory (memaddr
, myaddr
, len
, write
,
4534 fprintf_unfiltered (gdb_stdlog
,
4535 "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d",
4536 paddress (target_gdbarch (), memaddr
), len
,
4537 write
? "write" : "read", retval
);
4543 fputs_unfiltered (", bytes =", gdb_stdlog
);
4544 for (i
= 0; i
< retval
; i
++)
4546 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
4548 if (targetdebug
< 2 && i
> 0)
4550 fprintf_unfiltered (gdb_stdlog
, " ...");
4553 fprintf_unfiltered (gdb_stdlog
, "\n");
4556 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
4560 fputc_unfiltered ('\n', gdb_stdlog
);
4566 debug_to_files_info (struct target_ops
*target
)
4568 debug_target
.to_files_info (target
);
4570 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
4574 debug_to_insert_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4575 struct bp_target_info
*bp_tgt
)
4579 retval
= debug_target
.to_insert_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4581 fprintf_unfiltered (gdb_stdlog
,
4582 "target_insert_breakpoint (%s, xxx) = %ld\n",
4583 core_addr_to_string (bp_tgt
->placed_address
),
4584 (unsigned long) retval
);
4589 debug_to_remove_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4590 struct bp_target_info
*bp_tgt
)
4594 retval
= debug_target
.to_remove_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4596 fprintf_unfiltered (gdb_stdlog
,
4597 "target_remove_breakpoint (%s, xxx) = %ld\n",
4598 core_addr_to_string (bp_tgt
->placed_address
),
4599 (unsigned long) retval
);
4604 debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
4605 int type
, int cnt
, int from_tty
)
4609 retval
= debug_target
.to_can_use_hw_breakpoint (&debug_target
,
4610 type
, cnt
, from_tty
);
4612 fprintf_unfiltered (gdb_stdlog
,
4613 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
4614 (unsigned long) type
,
4615 (unsigned long) cnt
,
4616 (unsigned long) from_tty
,
4617 (unsigned long) retval
);
4622 debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
4623 CORE_ADDR addr
, int len
)
4627 retval
= debug_target
.to_region_ok_for_hw_watchpoint (&debug_target
,
4630 fprintf_unfiltered (gdb_stdlog
,
4631 "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n",
4632 core_addr_to_string (addr
), (unsigned long) len
,
4633 core_addr_to_string (retval
));
4638 debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
4639 CORE_ADDR addr
, int len
, int rw
,
4640 struct expression
*cond
)
4644 retval
= debug_target
.to_can_accel_watchpoint_condition (&debug_target
,
4648 fprintf_unfiltered (gdb_stdlog
,
4649 "target_can_accel_watchpoint_condition "
4650 "(%s, %d, %d, %s) = %ld\n",
4651 core_addr_to_string (addr
), len
, rw
,
4652 host_address_to_string (cond
), (unsigned long) retval
);
4657 debug_to_stopped_by_watchpoint (struct target_ops
*ops
)
4661 retval
= debug_target
.to_stopped_by_watchpoint (&debug_target
);
4663 fprintf_unfiltered (gdb_stdlog
,
4664 "target_stopped_by_watchpoint () = %ld\n",
4665 (unsigned long) retval
);
4670 debug_to_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr
)
4674 retval
= debug_target
.to_stopped_data_address (target
, addr
);
4676 fprintf_unfiltered (gdb_stdlog
,
4677 "target_stopped_data_address ([%s]) = %ld\n",
4678 core_addr_to_string (*addr
),
4679 (unsigned long)retval
);
4684 debug_to_watchpoint_addr_within_range (struct target_ops
*target
,
4686 CORE_ADDR start
, int length
)
4690 retval
= debug_target
.to_watchpoint_addr_within_range (target
, addr
,
4693 fprintf_filtered (gdb_stdlog
,
4694 "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n",
4695 core_addr_to_string (addr
), core_addr_to_string (start
),
4701 debug_to_insert_hw_breakpoint (struct target_ops
*self
,
4702 struct gdbarch
*gdbarch
,
4703 struct bp_target_info
*bp_tgt
)
4707 retval
= debug_target
.to_insert_hw_breakpoint (&debug_target
,
4710 fprintf_unfiltered (gdb_stdlog
,
4711 "target_insert_hw_breakpoint (%s, xxx) = %ld\n",
4712 core_addr_to_string (bp_tgt
->placed_address
),
4713 (unsigned long) retval
);
4718 debug_to_remove_hw_breakpoint (struct target_ops
*self
,
4719 struct gdbarch
*gdbarch
,
4720 struct bp_target_info
*bp_tgt
)
4724 retval
= debug_target
.to_remove_hw_breakpoint (&debug_target
,
4727 fprintf_unfiltered (gdb_stdlog
,
4728 "target_remove_hw_breakpoint (%s, xxx) = %ld\n",
4729 core_addr_to_string (bp_tgt
->placed_address
),
4730 (unsigned long) retval
);
4735 debug_to_insert_watchpoint (struct target_ops
*self
,
4736 CORE_ADDR addr
, int len
, int type
,
4737 struct expression
*cond
)
4741 retval
= debug_target
.to_insert_watchpoint (&debug_target
,
4742 addr
, len
, type
, cond
);
4744 fprintf_unfiltered (gdb_stdlog
,
4745 "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n",
4746 core_addr_to_string (addr
), len
, type
,
4747 host_address_to_string (cond
), (unsigned long) retval
);
4752 debug_to_remove_watchpoint (struct target_ops
*self
,
4753 CORE_ADDR addr
, int len
, int type
,
4754 struct expression
*cond
)
4758 retval
= debug_target
.to_remove_watchpoint (&debug_target
,
4759 addr
, len
, type
, cond
);
4761 fprintf_unfiltered (gdb_stdlog
,
4762 "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n",
4763 core_addr_to_string (addr
), len
, type
,
4764 host_address_to_string (cond
), (unsigned long) retval
);
4769 debug_to_terminal_init (struct target_ops
*self
)
4771 debug_target
.to_terminal_init (&debug_target
);
4773 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
4777 debug_to_terminal_inferior (struct target_ops
*self
)
4779 debug_target
.to_terminal_inferior (&debug_target
);
4781 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
4785 debug_to_terminal_ours_for_output (struct target_ops
*self
)
4787 debug_target
.to_terminal_ours_for_output (&debug_target
);
4789 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
4793 debug_to_terminal_ours (struct target_ops
*self
)
4795 debug_target
.to_terminal_ours (&debug_target
);
4797 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
4801 debug_to_terminal_save_ours (struct target_ops
*self
)
4803 debug_target
.to_terminal_save_ours (&debug_target
);
4805 fprintf_unfiltered (gdb_stdlog
, "target_terminal_save_ours ()\n");
4809 debug_to_terminal_info (struct target_ops
*self
,
4810 const char *arg
, int from_tty
)
4812 debug_target
.to_terminal_info (&debug_target
, arg
, from_tty
);
4814 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
4819 debug_to_load (struct target_ops
*self
, char *args
, int from_tty
)
4821 debug_target
.to_load (&debug_target
, args
, from_tty
);
4823 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
4827 debug_to_post_startup_inferior (struct target_ops
*self
, ptid_t ptid
)
4829 debug_target
.to_post_startup_inferior (&debug_target
, ptid
);
4831 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
4832 ptid_get_pid (ptid
));
4836 debug_to_insert_fork_catchpoint (struct target_ops
*self
, int pid
)
4840 retval
= debug_target
.to_insert_fork_catchpoint (&debug_target
, pid
);
4842 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d) = %d\n",
4849 debug_to_remove_fork_catchpoint (struct target_ops
*self
, int pid
)
4853 retval
= debug_target
.to_remove_fork_catchpoint (&debug_target
, pid
);
4855 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
4862 debug_to_insert_vfork_catchpoint (struct target_ops
*self
, int pid
)
4866 retval
= debug_target
.to_insert_vfork_catchpoint (&debug_target
, pid
);
4868 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d) = %d\n",
4875 debug_to_remove_vfork_catchpoint (struct target_ops
*self
, int pid
)
4879 retval
= debug_target
.to_remove_vfork_catchpoint (&debug_target
, pid
);
4881 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
4888 debug_to_insert_exec_catchpoint (struct target_ops
*self
, int pid
)
4892 retval
= debug_target
.to_insert_exec_catchpoint (&debug_target
, pid
);
4894 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d) = %d\n",
4901 debug_to_remove_exec_catchpoint (struct target_ops
*self
, int pid
)
4905 retval
= debug_target
.to_remove_exec_catchpoint (&debug_target
, pid
);
4907 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
4914 debug_to_has_exited (struct target_ops
*self
,
4915 int pid
, int wait_status
, int *exit_status
)
4919 has_exited
= debug_target
.to_has_exited (&debug_target
,
4920 pid
, wait_status
, exit_status
);
4922 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
4923 pid
, wait_status
, *exit_status
, has_exited
);
4929 debug_to_can_run (struct target_ops
*self
)
4933 retval
= debug_target
.to_can_run (&debug_target
);
4935 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
4940 static struct gdbarch
*
4941 debug_to_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
4943 struct gdbarch
*retval
;
4945 retval
= debug_target
.to_thread_architecture (ops
, ptid
);
4947 fprintf_unfiltered (gdb_stdlog
,
4948 "target_thread_architecture (%s) = %s [%s]\n",
4949 target_pid_to_str (ptid
),
4950 host_address_to_string (retval
),
4951 gdbarch_bfd_arch_info (retval
)->printable_name
);
4956 debug_to_stop (struct target_ops
*self
, ptid_t ptid
)
4958 debug_target
.to_stop (&debug_target
, ptid
);
4960 fprintf_unfiltered (gdb_stdlog
, "target_stop (%s)\n",
4961 target_pid_to_str (ptid
));
4965 debug_to_rcmd (struct target_ops
*self
, char *command
,
4966 struct ui_file
*outbuf
)
4968 debug_target
.to_rcmd (&debug_target
, command
, outbuf
);
4969 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
4973 debug_to_pid_to_exec_file (struct target_ops
*self
, int pid
)
4977 exec_file
= debug_target
.to_pid_to_exec_file (&debug_target
, pid
);
4979 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
4986 setup_target_debug (void)
4988 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
4990 current_target
.to_open
= debug_to_open
;
4991 current_target
.to_post_attach
= debug_to_post_attach
;
4992 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
4993 current_target
.deprecated_xfer_memory
= deprecated_debug_xfer_memory
;
4994 current_target
.to_files_info
= debug_to_files_info
;
4995 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
4996 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
4997 current_target
.to_can_use_hw_breakpoint
= debug_to_can_use_hw_breakpoint
;
4998 current_target
.to_insert_hw_breakpoint
= debug_to_insert_hw_breakpoint
;
4999 current_target
.to_remove_hw_breakpoint
= debug_to_remove_hw_breakpoint
;
5000 current_target
.to_insert_watchpoint
= debug_to_insert_watchpoint
;
5001 current_target
.to_remove_watchpoint
= debug_to_remove_watchpoint
;
5002 current_target
.to_stopped_by_watchpoint
= debug_to_stopped_by_watchpoint
;
5003 current_target
.to_stopped_data_address
= debug_to_stopped_data_address
;
5004 current_target
.to_watchpoint_addr_within_range
5005 = debug_to_watchpoint_addr_within_range
;
5006 current_target
.to_region_ok_for_hw_watchpoint
5007 = debug_to_region_ok_for_hw_watchpoint
;
5008 current_target
.to_can_accel_watchpoint_condition
5009 = debug_to_can_accel_watchpoint_condition
;
5010 current_target
.to_terminal_init
= debug_to_terminal_init
;
5011 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
5012 current_target
.to_terminal_ours_for_output
5013 = debug_to_terminal_ours_for_output
;
5014 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
5015 current_target
.to_terminal_save_ours
= debug_to_terminal_save_ours
;
5016 current_target
.to_terminal_info
= debug_to_terminal_info
;
5017 current_target
.to_load
= debug_to_load
;
5018 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
5019 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
5020 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
5021 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
5022 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
5023 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
5024 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
5025 current_target
.to_has_exited
= debug_to_has_exited
;
5026 current_target
.to_can_run
= debug_to_can_run
;
5027 current_target
.to_stop
= debug_to_stop
;
5028 current_target
.to_rcmd
= debug_to_rcmd
;
5029 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
5030 current_target
.to_thread_architecture
= debug_to_thread_architecture
;
5034 static char targ_desc
[] =
5035 "Names of targets and files being debugged.\nShows the entire \
5036 stack of targets currently in use (including the exec-file,\n\
5037 core-file, and process, if any), as well as the symbol file name.";
5040 default_rcmd (struct target_ops
*self
, char *command
, struct ui_file
*output
)
5042 error (_("\"monitor\" command not supported by this target."));
5046 do_monitor_command (char *cmd
,
5049 target_rcmd (cmd
, gdb_stdtarg
);
5052 /* Print the name of each layers of our target stack. */
5055 maintenance_print_target_stack (char *cmd
, int from_tty
)
5057 struct target_ops
*t
;
5059 printf_filtered (_("The current target stack is:\n"));
5061 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
5063 printf_filtered (" - %s (%s)\n", t
->to_shortname
, t
->to_longname
);
5067 /* Controls if async mode is permitted. */
5068 int target_async_permitted
= 0;
5070 /* The set command writes to this variable. If the inferior is
5071 executing, target_async_permitted is *not* updated. */
5072 static int target_async_permitted_1
= 0;
5075 set_target_async_command (char *args
, int from_tty
,
5076 struct cmd_list_element
*c
)
5078 if (have_live_inferiors ())
5080 target_async_permitted_1
= target_async_permitted
;
5081 error (_("Cannot change this setting while the inferior is running."));
5084 target_async_permitted
= target_async_permitted_1
;
5088 show_target_async_command (struct ui_file
*file
, int from_tty
,
5089 struct cmd_list_element
*c
,
5092 fprintf_filtered (file
,
5093 _("Controlling the inferior in "
5094 "asynchronous mode is %s.\n"), value
);
5097 /* Temporary copies of permission settings. */
5099 static int may_write_registers_1
= 1;
5100 static int may_write_memory_1
= 1;
5101 static int may_insert_breakpoints_1
= 1;
5102 static int may_insert_tracepoints_1
= 1;
5103 static int may_insert_fast_tracepoints_1
= 1;
5104 static int may_stop_1
= 1;
5106 /* Make the user-set values match the real values again. */
5109 update_target_permissions (void)
5111 may_write_registers_1
= may_write_registers
;
5112 may_write_memory_1
= may_write_memory
;
5113 may_insert_breakpoints_1
= may_insert_breakpoints
;
5114 may_insert_tracepoints_1
= may_insert_tracepoints
;
5115 may_insert_fast_tracepoints_1
= may_insert_fast_tracepoints
;
5116 may_stop_1
= may_stop
;
5119 /* The one function handles (most of) the permission flags in the same
5123 set_target_permissions (char *args
, int from_tty
,
5124 struct cmd_list_element
*c
)
5126 if (target_has_execution
)
5128 update_target_permissions ();
5129 error (_("Cannot change this setting while the inferior is running."));
5132 /* Make the real values match the user-changed values. */
5133 may_write_registers
= may_write_registers_1
;
5134 may_insert_breakpoints
= may_insert_breakpoints_1
;
5135 may_insert_tracepoints
= may_insert_tracepoints_1
;
5136 may_insert_fast_tracepoints
= may_insert_fast_tracepoints_1
;
5137 may_stop
= may_stop_1
;
5138 update_observer_mode ();
5141 /* Set memory write permission independently of observer mode. */
5144 set_write_memory_permission (char *args
, int from_tty
,
5145 struct cmd_list_element
*c
)
5147 /* Make the real values match the user-changed values. */
5148 may_write_memory
= may_write_memory_1
;
5149 update_observer_mode ();
5154 initialize_targets (void)
5156 init_dummy_target ();
5157 push_target (&dummy_target
);
5159 add_info ("target", target_info
, targ_desc
);
5160 add_info ("files", target_info
, targ_desc
);
5162 add_setshow_zuinteger_cmd ("target", class_maintenance
, &targetdebug
, _("\
5163 Set target debugging."), _("\
5164 Show target debugging."), _("\
5165 When non-zero, target debugging is enabled. Higher numbers are more\n\
5166 verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
5170 &setdebuglist
, &showdebuglist
);
5172 add_setshow_boolean_cmd ("trust-readonly-sections", class_support
,
5173 &trust_readonly
, _("\
5174 Set mode for reading from readonly sections."), _("\
5175 Show mode for reading from readonly sections."), _("\
5176 When this mode is on, memory reads from readonly sections (such as .text)\n\
5177 will be read from the object file instead of from the target. This will\n\
5178 result in significant performance improvement for remote targets."),
5180 show_trust_readonly
,
5181 &setlist
, &showlist
);
5183 add_com ("monitor", class_obscure
, do_monitor_command
,
5184 _("Send a command to the remote monitor (remote targets only)."));
5186 add_cmd ("target-stack", class_maintenance
, maintenance_print_target_stack
,
5187 _("Print the name of each layer of the internal target stack."),
5188 &maintenanceprintlist
);
5190 add_setshow_boolean_cmd ("target-async", no_class
,
5191 &target_async_permitted_1
, _("\
5192 Set whether gdb controls the inferior in asynchronous mode."), _("\
5193 Show whether gdb controls the inferior in asynchronous mode."), _("\
5194 Tells gdb whether to control the inferior in asynchronous mode."),
5195 set_target_async_command
,
5196 show_target_async_command
,
5200 add_setshow_boolean_cmd ("may-write-registers", class_support
,
5201 &may_write_registers_1
, _("\
5202 Set permission to write into registers."), _("\
5203 Show permission to write into registers."), _("\
5204 When this permission is on, GDB may write into the target's registers.\n\
5205 Otherwise, any sort of write attempt will result in an error."),
5206 set_target_permissions
, NULL
,
5207 &setlist
, &showlist
);
5209 add_setshow_boolean_cmd ("may-write-memory", class_support
,
5210 &may_write_memory_1
, _("\
5211 Set permission to write into target memory."), _("\
5212 Show permission to write into target memory."), _("\
5213 When this permission is on, GDB may write into the target's memory.\n\
5214 Otherwise, any sort of write attempt will result in an error."),
5215 set_write_memory_permission
, NULL
,
5216 &setlist
, &showlist
);
5218 add_setshow_boolean_cmd ("may-insert-breakpoints", class_support
,
5219 &may_insert_breakpoints_1
, _("\
5220 Set permission to insert breakpoints in the target."), _("\
5221 Show permission to insert breakpoints in the target."), _("\
5222 When this permission is on, GDB may insert breakpoints in the program.\n\
5223 Otherwise, any sort of insertion attempt will result in an error."),
5224 set_target_permissions
, NULL
,
5225 &setlist
, &showlist
);
5227 add_setshow_boolean_cmd ("may-insert-tracepoints", class_support
,
5228 &may_insert_tracepoints_1
, _("\
5229 Set permission to insert tracepoints in the target."), _("\
5230 Show permission to insert tracepoints in the target."), _("\
5231 When this permission is on, GDB may insert tracepoints in the program.\n\
5232 Otherwise, any sort of insertion attempt will result in an error."),
5233 set_target_permissions
, NULL
,
5234 &setlist
, &showlist
);
5236 add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support
,
5237 &may_insert_fast_tracepoints_1
, _("\
5238 Set permission to insert fast tracepoints in the target."), _("\
5239 Show permission to insert fast tracepoints in the target."), _("\
5240 When this permission is on, GDB may insert fast tracepoints.\n\
5241 Otherwise, any sort of insertion attempt will result in an error."),
5242 set_target_permissions
, NULL
,
5243 &setlist
, &showlist
);
5245 add_setshow_boolean_cmd ("may-interrupt", class_support
,
5247 Set permission to interrupt or signal the target."), _("\
5248 Show permission to interrupt or signal the target."), _("\
5249 When this permission is on, GDB may interrupt/stop the target's execution.\n\
5250 Otherwise, any attempt to interrupt or stop will be ignored."),
5251 set_target_permissions
, NULL
,
5252 &setlist
, &showlist
);