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 /* Do not inherit to_remove_hw_breakpoint. */
610 /* Do not inherit to_ranged_break_num_registers. */
611 /* Do not inherit to_insert_watchpoint. */
612 /* Do not inherit to_remove_watchpoint. */
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 /* Do not inherit to_watchpoint_addr_within_range. */
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_region_ok_for_hw_watchpoint
,
738 default_region_ok_for_hw_watchpoint
);
739 de_fault (to_can_accel_watchpoint_condition
,
740 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
741 struct expression
*))
743 de_fault (to_terminal_init
,
744 (void (*) (struct target_ops
*))
746 de_fault (to_terminal_inferior
,
747 (void (*) (struct target_ops
*))
749 de_fault (to_terminal_ours_for_output
,
750 (void (*) (struct target_ops
*))
752 de_fault (to_terminal_ours
,
753 (void (*) (struct target_ops
*))
755 de_fault (to_terminal_save_ours
,
756 (void (*) (struct target_ops
*))
758 de_fault (to_terminal_info
,
759 default_terminal_info
);
761 (void (*) (struct target_ops
*, char *, int))
763 de_fault (to_post_startup_inferior
,
764 (void (*) (struct target_ops
*, ptid_t
))
766 de_fault (to_insert_fork_catchpoint
,
767 (int (*) (struct target_ops
*, int))
769 de_fault (to_remove_fork_catchpoint
,
770 (int (*) (struct target_ops
*, int))
772 de_fault (to_insert_vfork_catchpoint
,
773 (int (*) (struct target_ops
*, int))
775 de_fault (to_remove_vfork_catchpoint
,
776 (int (*) (struct target_ops
*, int))
778 de_fault (to_insert_exec_catchpoint
,
779 (int (*) (struct target_ops
*, int))
781 de_fault (to_remove_exec_catchpoint
,
782 (int (*) (struct target_ops
*, int))
784 de_fault (to_set_syscall_catchpoint
,
785 (int (*) (struct target_ops
*, int, int, int, int, int *))
787 de_fault (to_has_exited
,
788 (int (*) (struct target_ops
*, int, int, int *))
790 de_fault (to_can_run
,
791 (int (*) (struct target_ops
*))
793 de_fault (to_extra_thread_info
,
794 (char *(*) (struct target_ops
*, struct thread_info
*))
796 de_fault (to_thread_name
,
797 (char *(*) (struct target_ops
*, struct thread_info
*))
800 (void (*) (struct target_ops
*, ptid_t
))
802 de_fault (to_pid_to_exec_file
,
803 (char *(*) (struct target_ops
*, int))
805 de_fault (to_thread_architecture
,
806 default_thread_architecture
);
807 current_target
.to_read_description
= NULL
;
808 de_fault (to_get_ada_task_ptid
,
809 (ptid_t (*) (struct target_ops
*, long, long))
810 default_get_ada_task_ptid
);
811 de_fault (to_supports_multi_process
,
812 (int (*) (struct target_ops
*))
814 de_fault (to_supports_enable_disable_tracepoint
,
815 (int (*) (struct target_ops
*))
817 de_fault (to_supports_string_tracing
,
818 (int (*) (struct target_ops
*))
820 de_fault (to_trace_init
,
821 (void (*) (struct target_ops
*))
823 de_fault (to_download_tracepoint
,
824 (void (*) (struct target_ops
*, struct bp_location
*))
826 de_fault (to_can_download_tracepoint
,
827 (int (*) (struct target_ops
*))
829 de_fault (to_download_trace_state_variable
,
830 (void (*) (struct target_ops
*, struct trace_state_variable
*))
832 de_fault (to_enable_tracepoint
,
833 (void (*) (struct target_ops
*, struct bp_location
*))
835 de_fault (to_disable_tracepoint
,
836 (void (*) (struct target_ops
*, struct bp_location
*))
838 de_fault (to_trace_set_readonly_regions
,
839 (void (*) (struct target_ops
*))
841 de_fault (to_trace_start
,
842 (void (*) (struct target_ops
*))
844 de_fault (to_get_trace_status
,
845 (int (*) (struct target_ops
*, struct trace_status
*))
847 de_fault (to_get_tracepoint_status
,
848 (void (*) (struct target_ops
*, struct breakpoint
*,
849 struct uploaded_tp
*))
851 de_fault (to_trace_stop
,
852 (void (*) (struct target_ops
*))
854 de_fault (to_trace_find
,
855 (int (*) (struct target_ops
*,
856 enum trace_find_type
, int, CORE_ADDR
, CORE_ADDR
, int *))
858 de_fault (to_get_trace_state_variable_value
,
859 (int (*) (struct target_ops
*, int, LONGEST
*))
861 de_fault (to_save_trace_data
,
862 (int (*) (struct target_ops
*, const char *))
864 de_fault (to_upload_tracepoints
,
865 (int (*) (struct target_ops
*, struct uploaded_tp
**))
867 de_fault (to_upload_trace_state_variables
,
868 (int (*) (struct target_ops
*, struct uploaded_tsv
**))
870 de_fault (to_get_raw_trace_data
,
871 (LONGEST (*) (struct target_ops
*, gdb_byte
*, ULONGEST
, LONGEST
))
873 de_fault (to_get_min_fast_tracepoint_insn_len
,
874 (int (*) (struct target_ops
*))
876 de_fault (to_set_disconnected_tracing
,
877 (void (*) (struct target_ops
*, int))
879 de_fault (to_set_circular_trace_buffer
,
880 (void (*) (struct target_ops
*, int))
882 de_fault (to_set_trace_buffer_size
,
883 (void (*) (struct target_ops
*, LONGEST
))
885 de_fault (to_set_trace_notes
,
886 (int (*) (struct target_ops
*,
887 const char *, const char *, const char *))
889 de_fault (to_get_tib_address
,
890 (int (*) (struct target_ops
*, ptid_t
, CORE_ADDR
*))
892 de_fault (to_set_permissions
,
893 (void (*) (struct target_ops
*))
895 de_fault (to_static_tracepoint_marker_at
,
896 (int (*) (struct target_ops
*,
897 CORE_ADDR
, struct static_tracepoint_marker
*))
899 de_fault (to_static_tracepoint_markers_by_strid
,
900 (VEC(static_tracepoint_marker_p
) * (*) (struct target_ops
*,
903 de_fault (to_traceframe_info
,
904 (struct traceframe_info
* (*) (struct target_ops
*))
906 de_fault (to_supports_evaluation_of_breakpoint_conditions
,
907 (int (*) (struct target_ops
*))
909 de_fault (to_can_run_breakpoint_commands
,
910 (int (*) (struct target_ops
*))
912 de_fault (to_use_agent
,
913 (int (*) (struct target_ops
*, int))
915 de_fault (to_can_use_agent
,
916 (int (*) (struct target_ops
*))
918 de_fault (to_augmented_libraries_svr4_read
,
919 (int (*) (struct target_ops
*))
921 de_fault (to_execution_direction
, default_execution_direction
);
925 /* Finally, position the target-stack beneath the squashed
926 "current_target". That way code looking for a non-inherited
927 target method can quickly and simply find it. */
928 current_target
.beneath
= target_stack
;
931 setup_target_debug ();
934 /* Push a new target type into the stack of the existing target accessors,
935 possibly superseding some of the existing accessors.
937 Rather than allow an empty stack, we always have the dummy target at
938 the bottom stratum, so we can call the function vectors without
942 push_target (struct target_ops
*t
)
944 struct target_ops
**cur
;
946 /* Check magic number. If wrong, it probably means someone changed
947 the struct definition, but not all the places that initialize one. */
948 if (t
->to_magic
!= OPS_MAGIC
)
950 fprintf_unfiltered (gdb_stderr
,
951 "Magic number of %s target struct wrong\n",
953 internal_error (__FILE__
, __LINE__
,
954 _("failed internal consistency check"));
957 /* Find the proper stratum to install this target in. */
958 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
960 if ((int) (t
->to_stratum
) >= (int) (*cur
)->to_stratum
)
964 /* If there's already targets at this stratum, remove them. */
965 /* FIXME: cagney/2003-10-15: I think this should be popping all
966 targets to CUR, and not just those at this stratum level. */
967 while ((*cur
) != NULL
&& t
->to_stratum
== (*cur
)->to_stratum
)
969 /* There's already something at this stratum level. Close it,
970 and un-hook it from the stack. */
971 struct target_ops
*tmp
= (*cur
);
973 (*cur
) = (*cur
)->beneath
;
978 /* We have removed all targets in our stratum, now add the new one. */
982 update_current_target ();
985 /* Remove a target_ops vector from the stack, wherever it may be.
986 Return how many times it was removed (0 or 1). */
989 unpush_target (struct target_ops
*t
)
991 struct target_ops
**cur
;
992 struct target_ops
*tmp
;
994 if (t
->to_stratum
== dummy_stratum
)
995 internal_error (__FILE__
, __LINE__
,
996 _("Attempt to unpush the dummy target"));
998 /* Look for the specified target. Note that we assume that a target
999 can only occur once in the target stack. */
1001 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1007 /* If we don't find target_ops, quit. Only open targets should be
1012 /* Unchain the target. */
1014 (*cur
) = (*cur
)->beneath
;
1015 tmp
->beneath
= NULL
;
1017 update_current_target ();
1019 /* Finally close the target. Note we do this after unchaining, so
1020 any target method calls from within the target_close
1021 implementation don't end up in T anymore. */
1028 pop_all_targets_above (enum strata above_stratum
)
1030 while ((int) (current_target
.to_stratum
) > (int) above_stratum
)
1032 if (!unpush_target (target_stack
))
1034 fprintf_unfiltered (gdb_stderr
,
1035 "pop_all_targets couldn't find target %s\n",
1036 target_stack
->to_shortname
);
1037 internal_error (__FILE__
, __LINE__
,
1038 _("failed internal consistency check"));
1045 pop_all_targets (void)
1047 pop_all_targets_above (dummy_stratum
);
1050 /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */
1053 target_is_pushed (struct target_ops
*t
)
1055 struct target_ops
**cur
;
1057 /* Check magic number. If wrong, it probably means someone changed
1058 the struct definition, but not all the places that initialize one. */
1059 if (t
->to_magic
!= OPS_MAGIC
)
1061 fprintf_unfiltered (gdb_stderr
,
1062 "Magic number of %s target struct wrong\n",
1064 internal_error (__FILE__
, __LINE__
,
1065 _("failed internal consistency check"));
1068 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1075 /* Using the objfile specified in OBJFILE, find the address for the
1076 current thread's thread-local storage with offset OFFSET. */
1078 target_translate_tls_address (struct objfile
*objfile
, CORE_ADDR offset
)
1080 volatile CORE_ADDR addr
= 0;
1081 struct target_ops
*target
;
1083 for (target
= current_target
.beneath
;
1085 target
= target
->beneath
)
1087 if (target
->to_get_thread_local_address
!= NULL
)
1092 && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ()))
1094 ptid_t ptid
= inferior_ptid
;
1095 volatile struct gdb_exception ex
;
1097 TRY_CATCH (ex
, RETURN_MASK_ALL
)
1101 /* Fetch the load module address for this objfile. */
1102 lm_addr
= gdbarch_fetch_tls_load_module_address (target_gdbarch (),
1104 /* If it's 0, throw the appropriate exception. */
1106 throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR
,
1107 _("TLS load module not found"));
1109 addr
= target
->to_get_thread_local_address (target
, ptid
,
1112 /* If an error occurred, print TLS related messages here. Otherwise,
1113 throw the error to some higher catcher. */
1116 int objfile_is_library
= (objfile
->flags
& OBJF_SHARED
);
1120 case TLS_NO_LIBRARY_SUPPORT_ERROR
:
1121 error (_("Cannot find thread-local variables "
1122 "in this thread library."));
1124 case TLS_LOAD_MODULE_NOT_FOUND_ERROR
:
1125 if (objfile_is_library
)
1126 error (_("Cannot find shared library `%s' in dynamic"
1127 " linker's load module list"), objfile_name (objfile
));
1129 error (_("Cannot find executable file `%s' in dynamic"
1130 " linker's load module list"), objfile_name (objfile
));
1132 case TLS_NOT_ALLOCATED_YET_ERROR
:
1133 if (objfile_is_library
)
1134 error (_("The inferior has not yet allocated storage for"
1135 " thread-local variables in\n"
1136 "the shared library `%s'\n"
1138 objfile_name (objfile
), target_pid_to_str (ptid
));
1140 error (_("The inferior has not yet allocated storage for"
1141 " thread-local variables in\n"
1142 "the executable `%s'\n"
1144 objfile_name (objfile
), target_pid_to_str (ptid
));
1146 case TLS_GENERIC_ERROR
:
1147 if (objfile_is_library
)
1148 error (_("Cannot find thread-local storage for %s, "
1149 "shared library %s:\n%s"),
1150 target_pid_to_str (ptid
),
1151 objfile_name (objfile
), ex
.message
);
1153 error (_("Cannot find thread-local storage for %s, "
1154 "executable file %s:\n%s"),
1155 target_pid_to_str (ptid
),
1156 objfile_name (objfile
), ex
.message
);
1159 throw_exception (ex
);
1164 /* It wouldn't be wrong here to try a gdbarch method, too; finding
1165 TLS is an ABI-specific thing. But we don't do that yet. */
1167 error (_("Cannot find thread-local variables on this target"));
1173 target_xfer_status_to_string (enum target_xfer_status err
)
1175 #define CASE(X) case X: return #X
1178 CASE(TARGET_XFER_E_IO
);
1179 CASE(TARGET_XFER_E_UNAVAILABLE
);
1188 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
1190 /* target_read_string -- read a null terminated string, up to LEN bytes,
1191 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
1192 Set *STRING to a pointer to malloc'd memory containing the data; the caller
1193 is responsible for freeing it. Return the number of bytes successfully
1197 target_read_string (CORE_ADDR memaddr
, char **string
, int len
, int *errnop
)
1199 int tlen
, offset
, i
;
1203 int buffer_allocated
;
1205 unsigned int nbytes_read
= 0;
1207 gdb_assert (string
);
1209 /* Small for testing. */
1210 buffer_allocated
= 4;
1211 buffer
= xmalloc (buffer_allocated
);
1216 tlen
= MIN (len
, 4 - (memaddr
& 3));
1217 offset
= memaddr
& 3;
1219 errcode
= target_read_memory (memaddr
& ~3, buf
, sizeof buf
);
1222 /* The transfer request might have crossed the boundary to an
1223 unallocated region of memory. Retry the transfer, requesting
1227 errcode
= target_read_memory (memaddr
, buf
, 1);
1232 if (bufptr
- buffer
+ tlen
> buffer_allocated
)
1236 bytes
= bufptr
- buffer
;
1237 buffer_allocated
*= 2;
1238 buffer
= xrealloc (buffer
, buffer_allocated
);
1239 bufptr
= buffer
+ bytes
;
1242 for (i
= 0; i
< tlen
; i
++)
1244 *bufptr
++ = buf
[i
+ offset
];
1245 if (buf
[i
+ offset
] == '\000')
1247 nbytes_read
+= i
+ 1;
1254 nbytes_read
+= tlen
;
1263 struct target_section_table
*
1264 target_get_section_table (struct target_ops
*target
)
1266 struct target_ops
*t
;
1269 fprintf_unfiltered (gdb_stdlog
, "target_get_section_table ()\n");
1271 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
1272 if (t
->to_get_section_table
!= NULL
)
1273 return (*t
->to_get_section_table
) (t
);
1278 /* Find a section containing ADDR. */
1280 struct target_section
*
1281 target_section_by_addr (struct target_ops
*target
, CORE_ADDR addr
)
1283 struct target_section_table
*table
= target_get_section_table (target
);
1284 struct target_section
*secp
;
1289 for (secp
= table
->sections
; secp
< table
->sections_end
; secp
++)
1291 if (addr
>= secp
->addr
&& addr
< secp
->endaddr
)
1297 /* Read memory from the live target, even if currently inspecting a
1298 traceframe. The return is the same as that of target_read. */
1300 static enum target_xfer_status
1301 target_read_live_memory (enum target_object object
,
1302 ULONGEST memaddr
, gdb_byte
*myaddr
, ULONGEST len
,
1303 ULONGEST
*xfered_len
)
1305 enum target_xfer_status ret
;
1306 struct cleanup
*cleanup
;
1308 /* Switch momentarily out of tfind mode so to access live memory.
1309 Note that this must not clear global state, such as the frame
1310 cache, which must still remain valid for the previous traceframe.
1311 We may be _building_ the frame cache at this point. */
1312 cleanup
= make_cleanup_restore_traceframe_number ();
1313 set_traceframe_number (-1);
1315 ret
= target_xfer_partial (current_target
.beneath
, object
, NULL
,
1316 myaddr
, NULL
, memaddr
, len
, xfered_len
);
1318 do_cleanups (cleanup
);
1322 /* Using the set of read-only target sections of OPS, read live
1323 read-only memory. Note that the actual reads start from the
1324 top-most target again.
1326 For interface/parameters/return description see target.h,
1329 static enum target_xfer_status
1330 memory_xfer_live_readonly_partial (struct target_ops
*ops
,
1331 enum target_object object
,
1332 gdb_byte
*readbuf
, ULONGEST memaddr
,
1333 ULONGEST len
, ULONGEST
*xfered_len
)
1335 struct target_section
*secp
;
1336 struct target_section_table
*table
;
1338 secp
= target_section_by_addr (ops
, memaddr
);
1340 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1341 secp
->the_bfd_section
)
1344 struct target_section
*p
;
1345 ULONGEST memend
= memaddr
+ len
;
1347 table
= target_get_section_table (ops
);
1349 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
1351 if (memaddr
>= p
->addr
)
1353 if (memend
<= p
->endaddr
)
1355 /* Entire transfer is within this section. */
1356 return target_read_live_memory (object
, memaddr
,
1357 readbuf
, len
, xfered_len
);
1359 else if (memaddr
>= p
->endaddr
)
1361 /* This section ends before the transfer starts. */
1366 /* This section overlaps the transfer. Just do half. */
1367 len
= p
->endaddr
- memaddr
;
1368 return target_read_live_memory (object
, memaddr
,
1369 readbuf
, len
, xfered_len
);
1375 return TARGET_XFER_EOF
;
1378 /* Read memory from more than one valid target. A core file, for
1379 instance, could have some of memory but delegate other bits to
1380 the target below it. So, we must manually try all targets. */
1382 static enum target_xfer_status
1383 raw_memory_xfer_partial (struct target_ops
*ops
, gdb_byte
*readbuf
,
1384 const gdb_byte
*writebuf
, ULONGEST memaddr
, LONGEST len
,
1385 ULONGEST
*xfered_len
)
1387 enum target_xfer_status res
;
1391 res
= ops
->to_xfer_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1392 readbuf
, writebuf
, memaddr
, len
,
1394 if (res
== TARGET_XFER_OK
)
1397 /* Stop if the target reports that the memory is not available. */
1398 if (res
== TARGET_XFER_E_UNAVAILABLE
)
1401 /* We want to continue past core files to executables, but not
1402 past a running target's memory. */
1403 if (ops
->to_has_all_memory (ops
))
1408 while (ops
!= NULL
);
1413 /* Perform a partial memory transfer.
1414 For docs see target.h, to_xfer_partial. */
1416 static enum target_xfer_status
1417 memory_xfer_partial_1 (struct target_ops
*ops
, enum target_object object
,
1418 gdb_byte
*readbuf
, const gdb_byte
*writebuf
, ULONGEST memaddr
,
1419 ULONGEST len
, ULONGEST
*xfered_len
)
1421 enum target_xfer_status res
;
1423 struct mem_region
*region
;
1424 struct inferior
*inf
;
1426 /* For accesses to unmapped overlay sections, read directly from
1427 files. Must do this first, as MEMADDR may need adjustment. */
1428 if (readbuf
!= NULL
&& overlay_debugging
)
1430 struct obj_section
*section
= find_pc_overlay (memaddr
);
1432 if (pc_in_unmapped_range (memaddr
, section
))
1434 struct target_section_table
*table
1435 = target_get_section_table (ops
);
1436 const char *section_name
= section
->the_bfd_section
->name
;
1438 memaddr
= overlay_mapped_address (memaddr
, section
);
1439 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1440 memaddr
, len
, xfered_len
,
1442 table
->sections_end
,
1447 /* Try the executable files, if "trust-readonly-sections" is set. */
1448 if (readbuf
!= NULL
&& trust_readonly
)
1450 struct target_section
*secp
;
1451 struct target_section_table
*table
;
1453 secp
= target_section_by_addr (ops
, memaddr
);
1455 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1456 secp
->the_bfd_section
)
1459 table
= target_get_section_table (ops
);
1460 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1461 memaddr
, len
, xfered_len
,
1463 table
->sections_end
,
1468 /* If reading unavailable memory in the context of traceframes, and
1469 this address falls within a read-only section, fallback to
1470 reading from live memory. */
1471 if (readbuf
!= NULL
&& get_traceframe_number () != -1)
1473 VEC(mem_range_s
) *available
;
1475 /* If we fail to get the set of available memory, then the
1476 target does not support querying traceframe info, and so we
1477 attempt reading from the traceframe anyway (assuming the
1478 target implements the old QTro packet then). */
1479 if (traceframe_available_memory (&available
, memaddr
, len
))
1481 struct cleanup
*old_chain
;
1483 old_chain
= make_cleanup (VEC_cleanup(mem_range_s
), &available
);
1485 if (VEC_empty (mem_range_s
, available
)
1486 || VEC_index (mem_range_s
, available
, 0)->start
!= memaddr
)
1488 /* Don't read into the traceframe's available
1490 if (!VEC_empty (mem_range_s
, available
))
1492 LONGEST oldlen
= len
;
1494 len
= VEC_index (mem_range_s
, available
, 0)->start
- memaddr
;
1495 gdb_assert (len
<= oldlen
);
1498 do_cleanups (old_chain
);
1500 /* This goes through the topmost target again. */
1501 res
= memory_xfer_live_readonly_partial (ops
, object
,
1504 if (res
== TARGET_XFER_OK
)
1505 return TARGET_XFER_OK
;
1508 /* No use trying further, we know some memory starting
1509 at MEMADDR isn't available. */
1511 return TARGET_XFER_E_UNAVAILABLE
;
1515 /* Don't try to read more than how much is available, in
1516 case the target implements the deprecated QTro packet to
1517 cater for older GDBs (the target's knowledge of read-only
1518 sections may be outdated by now). */
1519 len
= VEC_index (mem_range_s
, available
, 0)->length
;
1521 do_cleanups (old_chain
);
1525 /* Try GDB's internal data cache. */
1526 region
= lookup_mem_region (memaddr
);
1527 /* region->hi == 0 means there's no upper bound. */
1528 if (memaddr
+ len
< region
->hi
|| region
->hi
== 0)
1531 reg_len
= region
->hi
- memaddr
;
1533 switch (region
->attrib
.mode
)
1536 if (writebuf
!= NULL
)
1537 return TARGET_XFER_E_IO
;
1541 if (readbuf
!= NULL
)
1542 return TARGET_XFER_E_IO
;
1546 /* We only support writing to flash during "load" for now. */
1547 if (writebuf
!= NULL
)
1548 error (_("Writing to flash memory forbidden in this context"));
1552 return TARGET_XFER_E_IO
;
1555 if (!ptid_equal (inferior_ptid
, null_ptid
))
1556 inf
= find_inferior_pid (ptid_get_pid (inferior_ptid
));
1561 /* The dcache reads whole cache lines; that doesn't play well
1562 with reading from a trace buffer, because reading outside of
1563 the collected memory range fails. */
1564 && get_traceframe_number () == -1
1565 && (region
->attrib
.cache
1566 || (stack_cache_enabled_p () && object
== TARGET_OBJECT_STACK_MEMORY
)
1567 || (code_cache_enabled_p () && object
== TARGET_OBJECT_CODE_MEMORY
)))
1569 DCACHE
*dcache
= target_dcache_get_or_init ();
1572 if (readbuf
!= NULL
)
1573 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, readbuf
, reg_len
, 0);
1575 /* FIXME drow/2006-08-09: If we're going to preserve const
1576 correctness dcache_xfer_memory should take readbuf and
1578 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, (void *) writebuf
,
1581 return TARGET_XFER_E_IO
;
1584 *xfered_len
= (ULONGEST
) l
;
1585 return TARGET_XFER_OK
;
1589 /* If none of those methods found the memory we wanted, fall back
1590 to a target partial transfer. Normally a single call to
1591 to_xfer_partial is enough; if it doesn't recognize an object
1592 it will call the to_xfer_partial of the next target down.
1593 But for memory this won't do. Memory is the only target
1594 object which can be read from more than one valid target.
1595 A core file, for instance, could have some of memory but
1596 delegate other bits to the target below it. So, we must
1597 manually try all targets. */
1599 res
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, memaddr
, reg_len
,
1602 /* Make sure the cache gets updated no matter what - if we are writing
1603 to the stack. Even if this write is not tagged as such, we still need
1604 to update the cache. */
1606 if (res
== TARGET_XFER_OK
1609 && target_dcache_init_p ()
1610 && !region
->attrib
.cache
1611 && ((stack_cache_enabled_p () && object
!= TARGET_OBJECT_STACK_MEMORY
)
1612 || (code_cache_enabled_p () && object
!= TARGET_OBJECT_CODE_MEMORY
)))
1614 DCACHE
*dcache
= target_dcache_get ();
1616 dcache_update (dcache
, memaddr
, (void *) writebuf
, reg_len
);
1619 /* If we still haven't got anything, return the last error. We
1624 /* Perform a partial memory transfer. For docs see target.h,
1627 static enum target_xfer_status
1628 memory_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1629 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1630 ULONGEST memaddr
, ULONGEST len
, ULONGEST
*xfered_len
)
1632 enum target_xfer_status res
;
1634 /* Zero length requests are ok and require no work. */
1636 return TARGET_XFER_EOF
;
1638 /* Fill in READBUF with breakpoint shadows, or WRITEBUF with
1639 breakpoint insns, thus hiding out from higher layers whether
1640 there are software breakpoints inserted in the code stream. */
1641 if (readbuf
!= NULL
)
1643 res
= memory_xfer_partial_1 (ops
, object
, readbuf
, NULL
, memaddr
, len
,
1646 if (res
== TARGET_XFER_OK
&& !show_memory_breakpoints
)
1647 breakpoint_xfer_memory (readbuf
, NULL
, NULL
, memaddr
, res
);
1652 struct cleanup
*old_chain
;
1654 /* A large write request is likely to be partially satisfied
1655 by memory_xfer_partial_1. We will continually malloc
1656 and free a copy of the entire write request for breakpoint
1657 shadow handling even though we only end up writing a small
1658 subset of it. Cap writes to 4KB to mitigate this. */
1659 len
= min (4096, len
);
1661 buf
= xmalloc (len
);
1662 old_chain
= make_cleanup (xfree
, buf
);
1663 memcpy (buf
, writebuf
, len
);
1665 breakpoint_xfer_memory (NULL
, buf
, writebuf
, memaddr
, len
);
1666 res
= memory_xfer_partial_1 (ops
, object
, NULL
, buf
, memaddr
, len
,
1669 do_cleanups (old_chain
);
1676 restore_show_memory_breakpoints (void *arg
)
1678 show_memory_breakpoints
= (uintptr_t) arg
;
1682 make_show_memory_breakpoints_cleanup (int show
)
1684 int current
= show_memory_breakpoints
;
1686 show_memory_breakpoints
= show
;
1687 return make_cleanup (restore_show_memory_breakpoints
,
1688 (void *) (uintptr_t) current
);
1691 /* For docs see target.h, to_xfer_partial. */
1693 enum target_xfer_status
1694 target_xfer_partial (struct target_ops
*ops
,
1695 enum target_object object
, const char *annex
,
1696 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1697 ULONGEST offset
, ULONGEST len
,
1698 ULONGEST
*xfered_len
)
1700 enum target_xfer_status retval
;
1702 gdb_assert (ops
->to_xfer_partial
!= NULL
);
1704 /* Transfer is done when LEN is zero. */
1706 return TARGET_XFER_EOF
;
1708 if (writebuf
&& !may_write_memory
)
1709 error (_("Writing to memory is not allowed (addr %s, len %s)"),
1710 core_addr_to_string_nz (offset
), plongest (len
));
1714 /* If this is a memory transfer, let the memory-specific code
1715 have a look at it instead. Memory transfers are more
1717 if (object
== TARGET_OBJECT_MEMORY
|| object
== TARGET_OBJECT_STACK_MEMORY
1718 || object
== TARGET_OBJECT_CODE_MEMORY
)
1719 retval
= memory_xfer_partial (ops
, object
, readbuf
,
1720 writebuf
, offset
, len
, xfered_len
);
1721 else if (object
== TARGET_OBJECT_RAW_MEMORY
)
1723 /* Request the normal memory object from other layers. */
1724 retval
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, offset
, len
,
1728 retval
= ops
->to_xfer_partial (ops
, object
, annex
, readbuf
,
1729 writebuf
, offset
, len
, xfered_len
);
1733 const unsigned char *myaddr
= NULL
;
1735 fprintf_unfiltered (gdb_stdlog
,
1736 "%s:target_xfer_partial "
1737 "(%d, %s, %s, %s, %s, %s) = %d, %s",
1740 (annex
? annex
: "(null)"),
1741 host_address_to_string (readbuf
),
1742 host_address_to_string (writebuf
),
1743 core_addr_to_string_nz (offset
),
1744 pulongest (len
), retval
,
1745 pulongest (*xfered_len
));
1751 if (retval
== TARGET_XFER_OK
&& myaddr
!= NULL
)
1755 fputs_unfiltered (", bytes =", gdb_stdlog
);
1756 for (i
= 0; i
< *xfered_len
; i
++)
1758 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
1760 if (targetdebug
< 2 && i
> 0)
1762 fprintf_unfiltered (gdb_stdlog
, " ...");
1765 fprintf_unfiltered (gdb_stdlog
, "\n");
1768 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
1772 fputc_unfiltered ('\n', gdb_stdlog
);
1775 /* Check implementations of to_xfer_partial update *XFERED_LEN
1776 properly. Do assertion after printing debug messages, so that we
1777 can find more clues on assertion failure from debugging messages. */
1778 if (retval
== TARGET_XFER_OK
|| retval
== TARGET_XFER_E_UNAVAILABLE
)
1779 gdb_assert (*xfered_len
> 0);
1784 /* Read LEN bytes of target memory at address MEMADDR, placing the
1785 results in GDB's memory at MYADDR. Returns either 0 for success or
1786 TARGET_XFER_E_IO if any error occurs.
1788 If an error occurs, no guarantee is made about the contents of the data at
1789 MYADDR. In particular, the caller should not depend upon partial reads
1790 filling the buffer with good data. There is no way for the caller to know
1791 how much good data might have been transfered anyway. Callers that can
1792 deal with partial reads should call target_read (which will retry until
1793 it makes no progress, and then return how much was transferred). */
1796 target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1798 /* Dispatch to the topmost target, not the flattened current_target.
1799 Memory accesses check target->to_has_(all_)memory, and the
1800 flattened target doesn't inherit those. */
1801 if (target_read (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1802 myaddr
, memaddr
, len
) == len
)
1805 return TARGET_XFER_E_IO
;
1808 /* Like target_read_memory, but specify explicitly that this is a read
1809 from the target's raw memory. That is, this read bypasses the
1810 dcache, breakpoint shadowing, etc. */
1813 target_read_raw_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1815 /* See comment in target_read_memory about why the request starts at
1816 current_target.beneath. */
1817 if (target_read (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1818 myaddr
, memaddr
, len
) == len
)
1821 return TARGET_XFER_E_IO
;
1824 /* Like target_read_memory, but specify explicitly that this is a read from
1825 the target's stack. This may trigger different cache behavior. */
1828 target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1830 /* See comment in target_read_memory about why the request starts at
1831 current_target.beneath. */
1832 if (target_read (current_target
.beneath
, TARGET_OBJECT_STACK_MEMORY
, NULL
,
1833 myaddr
, memaddr
, len
) == len
)
1836 return TARGET_XFER_E_IO
;
1839 /* Like target_read_memory, but specify explicitly that this is a read from
1840 the target's code. This may trigger different cache behavior. */
1843 target_read_code (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1845 /* See comment in target_read_memory about why the request starts at
1846 current_target.beneath. */
1847 if (target_read (current_target
.beneath
, TARGET_OBJECT_CODE_MEMORY
, NULL
,
1848 myaddr
, memaddr
, len
) == len
)
1851 return TARGET_XFER_E_IO
;
1854 /* Write LEN bytes from MYADDR to target memory at address MEMADDR.
1855 Returns either 0 for success or TARGET_XFER_E_IO if any
1856 error occurs. If an error occurs, no guarantee is made about how
1857 much data got written. Callers that can deal with partial writes
1858 should call target_write. */
1861 target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1863 /* See comment in target_read_memory about why the request starts at
1864 current_target.beneath. */
1865 if (target_write (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1866 myaddr
, memaddr
, len
) == len
)
1869 return TARGET_XFER_E_IO
;
1872 /* Write LEN bytes from MYADDR to target raw memory at address
1873 MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO
1874 if any error occurs. If an error occurs, no guarantee is made
1875 about how much data got written. Callers that can deal with
1876 partial writes should call target_write. */
1879 target_write_raw_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1881 /* See comment in target_read_memory about why the request starts at
1882 current_target.beneath. */
1883 if (target_write (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1884 myaddr
, memaddr
, len
) == len
)
1887 return TARGET_XFER_E_IO
;
1890 /* Fetch the target's memory map. */
1893 target_memory_map (void)
1895 VEC(mem_region_s
) *result
;
1896 struct mem_region
*last_one
, *this_one
;
1898 struct target_ops
*t
;
1901 fprintf_unfiltered (gdb_stdlog
, "target_memory_map ()\n");
1903 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1904 if (t
->to_memory_map
!= NULL
)
1910 result
= t
->to_memory_map (t
);
1914 qsort (VEC_address (mem_region_s
, result
),
1915 VEC_length (mem_region_s
, result
),
1916 sizeof (struct mem_region
), mem_region_cmp
);
1918 /* Check that regions do not overlap. Simultaneously assign
1919 a numbering for the "mem" commands to use to refer to
1922 for (ix
= 0; VEC_iterate (mem_region_s
, result
, ix
, this_one
); ix
++)
1924 this_one
->number
= ix
;
1926 if (last_one
&& last_one
->hi
> this_one
->lo
)
1928 warning (_("Overlapping regions in memory map: ignoring"));
1929 VEC_free (mem_region_s
, result
);
1932 last_one
= this_one
;
1939 target_flash_erase (ULONGEST address
, LONGEST length
)
1941 struct target_ops
*t
;
1943 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1944 if (t
->to_flash_erase
!= NULL
)
1947 fprintf_unfiltered (gdb_stdlog
, "target_flash_erase (%s, %s)\n",
1948 hex_string (address
), phex (length
, 0));
1949 t
->to_flash_erase (t
, address
, length
);
1957 target_flash_done (void)
1959 struct target_ops
*t
;
1961 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1962 if (t
->to_flash_done
!= NULL
)
1965 fprintf_unfiltered (gdb_stdlog
, "target_flash_done\n");
1966 t
->to_flash_done (t
);
1974 show_trust_readonly (struct ui_file
*file
, int from_tty
,
1975 struct cmd_list_element
*c
, const char *value
)
1977 fprintf_filtered (file
,
1978 _("Mode for reading from readonly sections is %s.\n"),
1982 /* More generic transfers. */
1984 static enum target_xfer_status
1985 default_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1986 const char *annex
, gdb_byte
*readbuf
,
1987 const gdb_byte
*writebuf
, ULONGEST offset
, ULONGEST len
,
1988 ULONGEST
*xfered_len
)
1990 if (object
== TARGET_OBJECT_MEMORY
1991 && ops
->deprecated_xfer_memory
!= NULL
)
1992 /* If available, fall back to the target's
1993 "deprecated_xfer_memory" method. */
1998 if (writebuf
!= NULL
)
2000 void *buffer
= xmalloc (len
);
2001 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
2003 memcpy (buffer
, writebuf
, len
);
2004 xfered
= ops
->deprecated_xfer_memory (offset
, buffer
, len
,
2005 1/*write*/, NULL
, ops
);
2006 do_cleanups (cleanup
);
2008 if (readbuf
!= NULL
)
2009 xfered
= ops
->deprecated_xfer_memory (offset
, readbuf
, len
,
2010 0/*read*/, NULL
, ops
);
2013 *xfered_len
= (ULONGEST
) xfered
;
2014 return TARGET_XFER_E_IO
;
2016 else if (xfered
== 0 && errno
== 0)
2017 /* "deprecated_xfer_memory" uses 0, cross checked against
2018 ERRNO as one indication of an error. */
2019 return TARGET_XFER_EOF
;
2021 return TARGET_XFER_E_IO
;
2025 gdb_assert (ops
->beneath
!= NULL
);
2026 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
2027 readbuf
, writebuf
, offset
, len
,
2032 /* Target vector read/write partial wrapper functions. */
2034 static enum target_xfer_status
2035 target_read_partial (struct target_ops
*ops
,
2036 enum target_object object
,
2037 const char *annex
, gdb_byte
*buf
,
2038 ULONGEST offset
, ULONGEST len
,
2039 ULONGEST
*xfered_len
)
2041 return target_xfer_partial (ops
, object
, annex
, buf
, NULL
, offset
, len
,
2045 static enum target_xfer_status
2046 target_write_partial (struct target_ops
*ops
,
2047 enum target_object object
,
2048 const char *annex
, const gdb_byte
*buf
,
2049 ULONGEST offset
, LONGEST len
, ULONGEST
*xfered_len
)
2051 return target_xfer_partial (ops
, object
, annex
, NULL
, buf
, offset
, len
,
2055 /* Wrappers to perform the full transfer. */
2057 /* For docs on target_read see target.h. */
2060 target_read (struct target_ops
*ops
,
2061 enum target_object object
,
2062 const char *annex
, gdb_byte
*buf
,
2063 ULONGEST offset
, LONGEST len
)
2067 while (xfered
< len
)
2069 ULONGEST xfered_len
;
2070 enum target_xfer_status status
;
2072 status
= target_read_partial (ops
, object
, annex
,
2073 (gdb_byte
*) buf
+ xfered
,
2074 offset
+ xfered
, len
- xfered
,
2077 /* Call an observer, notifying them of the xfer progress? */
2078 if (status
== TARGET_XFER_EOF
)
2080 else if (status
== TARGET_XFER_OK
)
2082 xfered
+= xfered_len
;
2092 /* Assuming that the entire [begin, end) range of memory cannot be
2093 read, try to read whatever subrange is possible to read.
2095 The function returns, in RESULT, either zero or one memory block.
2096 If there's a readable subrange at the beginning, it is completely
2097 read and returned. Any further readable subrange will not be read.
2098 Otherwise, if there's a readable subrange at the end, it will be
2099 completely read and returned. Any readable subranges before it
2100 (obviously, not starting at the beginning), will be ignored. In
2101 other cases -- either no readable subrange, or readable subrange(s)
2102 that is neither at the beginning, or end, nothing is returned.
2104 The purpose of this function is to handle a read across a boundary
2105 of accessible memory in a case when memory map is not available.
2106 The above restrictions are fine for this case, but will give
2107 incorrect results if the memory is 'patchy'. However, supporting
2108 'patchy' memory would require trying to read every single byte,
2109 and it seems unacceptable solution. Explicit memory map is
2110 recommended for this case -- and target_read_memory_robust will
2111 take care of reading multiple ranges then. */
2114 read_whatever_is_readable (struct target_ops
*ops
,
2115 ULONGEST begin
, ULONGEST end
,
2116 VEC(memory_read_result_s
) **result
)
2118 gdb_byte
*buf
= xmalloc (end
- begin
);
2119 ULONGEST current_begin
= begin
;
2120 ULONGEST current_end
= end
;
2122 memory_read_result_s r
;
2123 ULONGEST xfered_len
;
2125 /* If we previously failed to read 1 byte, nothing can be done here. */
2126 if (end
- begin
<= 1)
2132 /* Check that either first or the last byte is readable, and give up
2133 if not. This heuristic is meant to permit reading accessible memory
2134 at the boundary of accessible region. */
2135 if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2136 buf
, begin
, 1, &xfered_len
) == TARGET_XFER_OK
)
2141 else if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2142 buf
+ (end
-begin
) - 1, end
- 1, 1,
2143 &xfered_len
) == TARGET_XFER_OK
)
2154 /* Loop invariant is that the [current_begin, current_end) was previously
2155 found to be not readable as a whole.
2157 Note loop condition -- if the range has 1 byte, we can't divide the range
2158 so there's no point trying further. */
2159 while (current_end
- current_begin
> 1)
2161 ULONGEST first_half_begin
, first_half_end
;
2162 ULONGEST second_half_begin
, second_half_end
;
2164 ULONGEST middle
= current_begin
+ (current_end
- current_begin
)/2;
2168 first_half_begin
= current_begin
;
2169 first_half_end
= middle
;
2170 second_half_begin
= middle
;
2171 second_half_end
= current_end
;
2175 first_half_begin
= middle
;
2176 first_half_end
= current_end
;
2177 second_half_begin
= current_begin
;
2178 second_half_end
= middle
;
2181 xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2182 buf
+ (first_half_begin
- begin
),
2184 first_half_end
- first_half_begin
);
2186 if (xfer
== first_half_end
- first_half_begin
)
2188 /* This half reads up fine. So, the error must be in the
2190 current_begin
= second_half_begin
;
2191 current_end
= second_half_end
;
2195 /* This half is not readable. Because we've tried one byte, we
2196 know some part of this half if actually redable. Go to the next
2197 iteration to divide again and try to read.
2199 We don't handle the other half, because this function only tries
2200 to read a single readable subrange. */
2201 current_begin
= first_half_begin
;
2202 current_end
= first_half_end
;
2208 /* The [begin, current_begin) range has been read. */
2210 r
.end
= current_begin
;
2215 /* The [current_end, end) range has been read. */
2216 LONGEST rlen
= end
- current_end
;
2218 r
.data
= xmalloc (rlen
);
2219 memcpy (r
.data
, buf
+ current_end
- begin
, rlen
);
2220 r
.begin
= current_end
;
2224 VEC_safe_push(memory_read_result_s
, (*result
), &r
);
2228 free_memory_read_result_vector (void *x
)
2230 VEC(memory_read_result_s
) *v
= x
;
2231 memory_read_result_s
*current
;
2234 for (ix
= 0; VEC_iterate (memory_read_result_s
, v
, ix
, current
); ++ix
)
2236 xfree (current
->data
);
2238 VEC_free (memory_read_result_s
, v
);
2241 VEC(memory_read_result_s
) *
2242 read_memory_robust (struct target_ops
*ops
, ULONGEST offset
, LONGEST len
)
2244 VEC(memory_read_result_s
) *result
= 0;
2247 while (xfered
< len
)
2249 struct mem_region
*region
= lookup_mem_region (offset
+ xfered
);
2252 /* If there is no explicit region, a fake one should be created. */
2253 gdb_assert (region
);
2255 if (region
->hi
== 0)
2256 rlen
= len
- xfered
;
2258 rlen
= region
->hi
- offset
;
2260 if (region
->attrib
.mode
== MEM_NONE
|| region
->attrib
.mode
== MEM_WO
)
2262 /* Cannot read this region. Note that we can end up here only
2263 if the region is explicitly marked inaccessible, or
2264 'inaccessible-by-default' is in effect. */
2269 LONGEST to_read
= min (len
- xfered
, rlen
);
2270 gdb_byte
*buffer
= (gdb_byte
*)xmalloc (to_read
);
2272 LONGEST xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2273 (gdb_byte
*) buffer
,
2274 offset
+ xfered
, to_read
);
2275 /* Call an observer, notifying them of the xfer progress? */
2278 /* Got an error reading full chunk. See if maybe we can read
2281 read_whatever_is_readable (ops
, offset
+ xfered
,
2282 offset
+ xfered
+ to_read
, &result
);
2287 struct memory_read_result r
;
2289 r
.begin
= offset
+ xfered
;
2290 r
.end
= r
.begin
+ xfer
;
2291 VEC_safe_push (memory_read_result_s
, result
, &r
);
2301 /* An alternative to target_write with progress callbacks. */
2304 target_write_with_progress (struct target_ops
*ops
,
2305 enum target_object object
,
2306 const char *annex
, const gdb_byte
*buf
,
2307 ULONGEST offset
, LONGEST len
,
2308 void (*progress
) (ULONGEST
, void *), void *baton
)
2312 /* Give the progress callback a chance to set up. */
2314 (*progress
) (0, baton
);
2316 while (xfered
< len
)
2318 ULONGEST xfered_len
;
2319 enum target_xfer_status status
;
2321 status
= target_write_partial (ops
, object
, annex
,
2322 (gdb_byte
*) buf
+ xfered
,
2323 offset
+ xfered
, len
- xfered
,
2326 if (status
== TARGET_XFER_EOF
)
2328 if (TARGET_XFER_STATUS_ERROR_P (status
))
2331 gdb_assert (status
== TARGET_XFER_OK
);
2333 (*progress
) (xfered_len
, baton
);
2335 xfered
+= xfered_len
;
2341 /* For docs on target_write see target.h. */
2344 target_write (struct target_ops
*ops
,
2345 enum target_object object
,
2346 const char *annex
, const gdb_byte
*buf
,
2347 ULONGEST offset
, LONGEST len
)
2349 return target_write_with_progress (ops
, object
, annex
, buf
, offset
, len
,
2353 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2354 the size of the transferred data. PADDING additional bytes are
2355 available in *BUF_P. This is a helper function for
2356 target_read_alloc; see the declaration of that function for more
2360 target_read_alloc_1 (struct target_ops
*ops
, enum target_object object
,
2361 const char *annex
, gdb_byte
**buf_p
, int padding
)
2363 size_t buf_alloc
, buf_pos
;
2366 /* This function does not have a length parameter; it reads the
2367 entire OBJECT). Also, it doesn't support objects fetched partly
2368 from one target and partly from another (in a different stratum,
2369 e.g. a core file and an executable). Both reasons make it
2370 unsuitable for reading memory. */
2371 gdb_assert (object
!= TARGET_OBJECT_MEMORY
);
2373 /* Start by reading up to 4K at a time. The target will throttle
2374 this number down if necessary. */
2376 buf
= xmalloc (buf_alloc
);
2380 ULONGEST xfered_len
;
2381 enum target_xfer_status status
;
2383 status
= target_read_partial (ops
, object
, annex
, &buf
[buf_pos
],
2384 buf_pos
, buf_alloc
- buf_pos
- padding
,
2387 if (status
== TARGET_XFER_EOF
)
2389 /* Read all there was. */
2396 else if (status
!= TARGET_XFER_OK
)
2398 /* An error occurred. */
2400 return TARGET_XFER_E_IO
;
2403 buf_pos
+= xfered_len
;
2405 /* If the buffer is filling up, expand it. */
2406 if (buf_alloc
< buf_pos
* 2)
2409 buf
= xrealloc (buf
, buf_alloc
);
2416 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2417 the size of the transferred data. See the declaration in "target.h"
2418 function for more information about the return value. */
2421 target_read_alloc (struct target_ops
*ops
, enum target_object object
,
2422 const char *annex
, gdb_byte
**buf_p
)
2424 return target_read_alloc_1 (ops
, object
, annex
, buf_p
, 0);
2427 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
2428 returned as a string, allocated using xmalloc. If an error occurs
2429 or the transfer is unsupported, NULL is returned. Empty objects
2430 are returned as allocated but empty strings. A warning is issued
2431 if the result contains any embedded NUL bytes. */
2434 target_read_stralloc (struct target_ops
*ops
, enum target_object object
,
2439 LONGEST i
, transferred
;
2441 transferred
= target_read_alloc_1 (ops
, object
, annex
, &buffer
, 1);
2442 bufstr
= (char *) buffer
;
2444 if (transferred
< 0)
2447 if (transferred
== 0)
2448 return xstrdup ("");
2450 bufstr
[transferred
] = 0;
2452 /* Check for embedded NUL bytes; but allow trailing NULs. */
2453 for (i
= strlen (bufstr
); i
< transferred
; i
++)
2456 warning (_("target object %d, annex %s, "
2457 "contained unexpected null characters"),
2458 (int) object
, annex
? annex
: "(none)");
2465 /* Memory transfer methods. */
2468 get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
, gdb_byte
*buf
,
2471 /* This method is used to read from an alternate, non-current
2472 target. This read must bypass the overlay support (as symbols
2473 don't match this target), and GDB's internal cache (wrong cache
2474 for this target). */
2475 if (target_read (ops
, TARGET_OBJECT_RAW_MEMORY
, NULL
, buf
, addr
, len
)
2477 memory_error (TARGET_XFER_E_IO
, addr
);
2481 get_target_memory_unsigned (struct target_ops
*ops
, CORE_ADDR addr
,
2482 int len
, enum bfd_endian byte_order
)
2484 gdb_byte buf
[sizeof (ULONGEST
)];
2486 gdb_assert (len
<= sizeof (buf
));
2487 get_target_memory (ops
, addr
, buf
, len
);
2488 return extract_unsigned_integer (buf
, len
, byte_order
);
2494 target_insert_breakpoint (struct gdbarch
*gdbarch
,
2495 struct bp_target_info
*bp_tgt
)
2497 if (!may_insert_breakpoints
)
2499 warning (_("May not insert breakpoints"));
2503 return current_target
.to_insert_breakpoint (¤t_target
,
2510 target_remove_breakpoint (struct gdbarch
*gdbarch
,
2511 struct bp_target_info
*bp_tgt
)
2513 /* This is kind of a weird case to handle, but the permission might
2514 have been changed after breakpoints were inserted - in which case
2515 we should just take the user literally and assume that any
2516 breakpoints should be left in place. */
2517 if (!may_insert_breakpoints
)
2519 warning (_("May not remove breakpoints"));
2523 return current_target
.to_remove_breakpoint (¤t_target
,
2528 target_info (char *args
, int from_tty
)
2530 struct target_ops
*t
;
2531 int has_all_mem
= 0;
2533 if (symfile_objfile
!= NULL
)
2534 printf_unfiltered (_("Symbols from \"%s\".\n"),
2535 objfile_name (symfile_objfile
));
2537 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2539 if (!(*t
->to_has_memory
) (t
))
2542 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
2545 printf_unfiltered (_("\tWhile running this, "
2546 "GDB does not access memory from...\n"));
2547 printf_unfiltered ("%s:\n", t
->to_longname
);
2548 (t
->to_files_info
) (t
);
2549 has_all_mem
= (*t
->to_has_all_memory
) (t
);
2553 /* This function is called before any new inferior is created, e.g.
2554 by running a program, attaching, or connecting to a target.
2555 It cleans up any state from previous invocations which might
2556 change between runs. This is a subset of what target_preopen
2557 resets (things which might change between targets). */
2560 target_pre_inferior (int from_tty
)
2562 /* Clear out solib state. Otherwise the solib state of the previous
2563 inferior might have survived and is entirely wrong for the new
2564 target. This has been observed on GNU/Linux using glibc 2.3. How
2576 Cannot access memory at address 0xdeadbeef
2579 /* In some OSs, the shared library list is the same/global/shared
2580 across inferiors. If code is shared between processes, so are
2581 memory regions and features. */
2582 if (!gdbarch_has_global_solist (target_gdbarch ()))
2584 no_shared_libraries (NULL
, from_tty
);
2586 invalidate_target_mem_regions ();
2588 target_clear_description ();
2591 agent_capability_invalidate ();
2594 /* Callback for iterate_over_inferiors. Gets rid of the given
2598 dispose_inferior (struct inferior
*inf
, void *args
)
2600 struct thread_info
*thread
;
2602 thread
= any_thread_of_process (inf
->pid
);
2605 switch_to_thread (thread
->ptid
);
2607 /* Core inferiors actually should be detached, not killed. */
2608 if (target_has_execution
)
2611 target_detach (NULL
, 0);
2617 /* This is to be called by the open routine before it does
2621 target_preopen (int from_tty
)
2625 if (have_inferiors ())
2628 || !have_live_inferiors ()
2629 || query (_("A program is being debugged already. Kill it? ")))
2630 iterate_over_inferiors (dispose_inferior
, NULL
);
2632 error (_("Program not killed."));
2635 /* Calling target_kill may remove the target from the stack. But if
2636 it doesn't (which seems like a win for UDI), remove it now. */
2637 /* Leave the exec target, though. The user may be switching from a
2638 live process to a core of the same program. */
2639 pop_all_targets_above (file_stratum
);
2641 target_pre_inferior (from_tty
);
2644 /* Detach a target after doing deferred register stores. */
2647 target_detach (const char *args
, int from_tty
)
2649 struct target_ops
* t
;
2651 if (gdbarch_has_global_breakpoints (target_gdbarch ()))
2652 /* Don't remove global breakpoints here. They're removed on
2653 disconnection from the target. */
2656 /* If we're in breakpoints-always-inserted mode, have to remove
2657 them before detaching. */
2658 remove_breakpoints_pid (ptid_get_pid (inferior_ptid
));
2660 prepare_for_detach ();
2662 current_target
.to_detach (¤t_target
, args
, from_tty
);
2664 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n",
2669 target_disconnect (char *args
, int from_tty
)
2671 struct target_ops
*t
;
2673 /* If we're in breakpoints-always-inserted mode or if breakpoints
2674 are global across processes, we have to remove them before
2676 remove_breakpoints ();
2678 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2679 if (t
->to_disconnect
!= NULL
)
2682 fprintf_unfiltered (gdb_stdlog
, "target_disconnect (%s, %d)\n",
2684 t
->to_disconnect (t
, args
, from_tty
);
2692 target_wait (ptid_t ptid
, struct target_waitstatus
*status
, int options
)
2694 struct target_ops
*t
;
2695 ptid_t retval
= (current_target
.to_wait
) (¤t_target
, ptid
,
2700 char *status_string
;
2701 char *options_string
;
2703 status_string
= target_waitstatus_to_string (status
);
2704 options_string
= target_options_to_string (options
);
2705 fprintf_unfiltered (gdb_stdlog
,
2706 "target_wait (%d, status, options={%s})"
2708 ptid_get_pid (ptid
), options_string
,
2709 ptid_get_pid (retval
), status_string
);
2710 xfree (status_string
);
2711 xfree (options_string
);
2718 target_pid_to_str (ptid_t ptid
)
2720 struct target_ops
*t
;
2722 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2724 if (t
->to_pid_to_str
!= NULL
)
2725 return (*t
->to_pid_to_str
) (t
, ptid
);
2728 return normal_pid_to_str (ptid
);
2732 target_thread_name (struct thread_info
*info
)
2734 struct target_ops
*t
;
2736 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2738 if (t
->to_thread_name
!= NULL
)
2739 return (*t
->to_thread_name
) (t
, info
);
2746 target_resume (ptid_t ptid
, int step
, enum gdb_signal signal
)
2748 struct target_ops
*t
;
2750 target_dcache_invalidate ();
2752 current_target
.to_resume (¤t_target
, ptid
, step
, signal
);
2754 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n",
2755 ptid_get_pid (ptid
),
2756 step
? "step" : "continue",
2757 gdb_signal_to_name (signal
));
2759 registers_changed_ptid (ptid
);
2760 set_executing (ptid
, 1);
2761 set_running (ptid
, 1);
2762 clear_inline_frame_state (ptid
);
2766 target_pass_signals (int numsigs
, unsigned char *pass_signals
)
2768 struct target_ops
*t
;
2770 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2772 if (t
->to_pass_signals
!= NULL
)
2778 fprintf_unfiltered (gdb_stdlog
, "target_pass_signals (%d, {",
2781 for (i
= 0; i
< numsigs
; i
++)
2782 if (pass_signals
[i
])
2783 fprintf_unfiltered (gdb_stdlog
, " %s",
2784 gdb_signal_to_name (i
));
2786 fprintf_unfiltered (gdb_stdlog
, " })\n");
2789 (*t
->to_pass_signals
) (t
, numsigs
, pass_signals
);
2796 target_program_signals (int numsigs
, unsigned char *program_signals
)
2798 struct target_ops
*t
;
2800 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2802 if (t
->to_program_signals
!= NULL
)
2808 fprintf_unfiltered (gdb_stdlog
, "target_program_signals (%d, {",
2811 for (i
= 0; i
< numsigs
; i
++)
2812 if (program_signals
[i
])
2813 fprintf_unfiltered (gdb_stdlog
, " %s",
2814 gdb_signal_to_name (i
));
2816 fprintf_unfiltered (gdb_stdlog
, " })\n");
2819 (*t
->to_program_signals
) (t
, numsigs
, program_signals
);
2825 /* Look through the list of possible targets for a target that can
2829 target_follow_fork (int follow_child
, int detach_fork
)
2831 struct target_ops
*t
;
2833 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2835 if (t
->to_follow_fork
!= NULL
)
2837 int retval
= t
->to_follow_fork (t
, follow_child
, detach_fork
);
2840 fprintf_unfiltered (gdb_stdlog
,
2841 "target_follow_fork (%d, %d) = %d\n",
2842 follow_child
, detach_fork
, retval
);
2847 /* Some target returned a fork event, but did not know how to follow it. */
2848 internal_error (__FILE__
, __LINE__
,
2849 _("could not find a target to follow fork"));
2853 target_mourn_inferior (void)
2855 struct target_ops
*t
;
2857 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2859 if (t
->to_mourn_inferior
!= NULL
)
2861 t
->to_mourn_inferior (t
);
2863 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2865 /* We no longer need to keep handles on any of the object files.
2866 Make sure to release them to avoid unnecessarily locking any
2867 of them while we're not actually debugging. */
2868 bfd_cache_close_all ();
2874 internal_error (__FILE__
, __LINE__
,
2875 _("could not find a target to follow mourn inferior"));
2878 /* Look for a target which can describe architectural features, starting
2879 from TARGET. If we find one, return its description. */
2881 const struct target_desc
*
2882 target_read_description (struct target_ops
*target
)
2884 struct target_ops
*t
;
2886 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
2887 if (t
->to_read_description
!= NULL
)
2889 const struct target_desc
*tdesc
;
2891 tdesc
= t
->to_read_description (t
);
2899 /* The default implementation of to_search_memory.
2900 This implements a basic search of memory, reading target memory and
2901 performing the search here (as opposed to performing the search in on the
2902 target side with, for example, gdbserver). */
2905 simple_search_memory (struct target_ops
*ops
,
2906 CORE_ADDR start_addr
, ULONGEST search_space_len
,
2907 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2908 CORE_ADDR
*found_addrp
)
2910 /* NOTE: also defined in find.c testcase. */
2911 #define SEARCH_CHUNK_SIZE 16000
2912 const unsigned chunk_size
= SEARCH_CHUNK_SIZE
;
2913 /* Buffer to hold memory contents for searching. */
2914 gdb_byte
*search_buf
;
2915 unsigned search_buf_size
;
2916 struct cleanup
*old_cleanups
;
2918 search_buf_size
= chunk_size
+ pattern_len
- 1;
2920 /* No point in trying to allocate a buffer larger than the search space. */
2921 if (search_space_len
< search_buf_size
)
2922 search_buf_size
= search_space_len
;
2924 search_buf
= malloc (search_buf_size
);
2925 if (search_buf
== NULL
)
2926 error (_("Unable to allocate memory to perform the search."));
2927 old_cleanups
= make_cleanup (free_current_contents
, &search_buf
);
2929 /* Prime the search buffer. */
2931 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2932 search_buf
, start_addr
, search_buf_size
) != search_buf_size
)
2934 warning (_("Unable to access %s bytes of target "
2935 "memory at %s, halting search."),
2936 pulongest (search_buf_size
), hex_string (start_addr
));
2937 do_cleanups (old_cleanups
);
2941 /* Perform the search.
2943 The loop is kept simple by allocating [N + pattern-length - 1] bytes.
2944 When we've scanned N bytes we copy the trailing bytes to the start and
2945 read in another N bytes. */
2947 while (search_space_len
>= pattern_len
)
2949 gdb_byte
*found_ptr
;
2950 unsigned nr_search_bytes
= min (search_space_len
, search_buf_size
);
2952 found_ptr
= memmem (search_buf
, nr_search_bytes
,
2953 pattern
, pattern_len
);
2955 if (found_ptr
!= NULL
)
2957 CORE_ADDR found_addr
= start_addr
+ (found_ptr
- search_buf
);
2959 *found_addrp
= found_addr
;
2960 do_cleanups (old_cleanups
);
2964 /* Not found in this chunk, skip to next chunk. */
2966 /* Don't let search_space_len wrap here, it's unsigned. */
2967 if (search_space_len
>= chunk_size
)
2968 search_space_len
-= chunk_size
;
2970 search_space_len
= 0;
2972 if (search_space_len
>= pattern_len
)
2974 unsigned keep_len
= search_buf_size
- chunk_size
;
2975 CORE_ADDR read_addr
= start_addr
+ chunk_size
+ keep_len
;
2978 /* Copy the trailing part of the previous iteration to the front
2979 of the buffer for the next iteration. */
2980 gdb_assert (keep_len
== pattern_len
- 1);
2981 memcpy (search_buf
, search_buf
+ chunk_size
, keep_len
);
2983 nr_to_read
= min (search_space_len
- keep_len
, chunk_size
);
2985 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2986 search_buf
+ keep_len
, read_addr
,
2987 nr_to_read
) != nr_to_read
)
2989 warning (_("Unable to access %s bytes of target "
2990 "memory at %s, halting search."),
2991 plongest (nr_to_read
),
2992 hex_string (read_addr
));
2993 do_cleanups (old_cleanups
);
2997 start_addr
+= chunk_size
;
3003 do_cleanups (old_cleanups
);
3007 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
3008 sequence of bytes in PATTERN with length PATTERN_LEN.
3010 The result is 1 if found, 0 if not found, and -1 if there was an error
3011 requiring halting of the search (e.g. memory read error).
3012 If the pattern is found the address is recorded in FOUND_ADDRP. */
3015 target_search_memory (CORE_ADDR start_addr
, ULONGEST search_space_len
,
3016 const gdb_byte
*pattern
, ULONGEST pattern_len
,
3017 CORE_ADDR
*found_addrp
)
3019 struct target_ops
*t
;
3022 /* We don't use INHERIT to set current_target.to_search_memory,
3023 so we have to scan the target stack and handle targetdebug
3027 fprintf_unfiltered (gdb_stdlog
, "target_search_memory (%s, ...)\n",
3028 hex_string (start_addr
));
3030 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3031 if (t
->to_search_memory
!= NULL
)
3036 found
= t
->to_search_memory (t
, start_addr
, search_space_len
,
3037 pattern
, pattern_len
, found_addrp
);
3041 /* If a special version of to_search_memory isn't available, use the
3043 found
= simple_search_memory (current_target
.beneath
,
3044 start_addr
, search_space_len
,
3045 pattern
, pattern_len
, found_addrp
);
3049 fprintf_unfiltered (gdb_stdlog
, " = %d\n", found
);
3054 /* Look through the currently pushed targets. If none of them will
3055 be able to restart the currently running process, issue an error
3059 target_require_runnable (void)
3061 struct target_ops
*t
;
3063 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
3065 /* If this target knows how to create a new program, then
3066 assume we will still be able to after killing the current
3067 one. Either killing and mourning will not pop T, or else
3068 find_default_run_target will find it again. */
3069 if (t
->to_create_inferior
!= NULL
)
3072 /* Do not worry about thread_stratum targets that can not
3073 create inferiors. Assume they will be pushed again if
3074 necessary, and continue to the process_stratum. */
3075 if (t
->to_stratum
== thread_stratum
3076 || t
->to_stratum
== arch_stratum
)
3079 error (_("The \"%s\" target does not support \"run\". "
3080 "Try \"help target\" or \"continue\"."),
3084 /* This function is only called if the target is running. In that
3085 case there should have been a process_stratum target and it
3086 should either know how to create inferiors, or not... */
3087 internal_error (__FILE__
, __LINE__
, _("No targets found"));
3090 /* Look through the list of possible targets for a target that can
3091 execute a run or attach command without any other data. This is
3092 used to locate the default process stratum.
3094 If DO_MESG is not NULL, the result is always valid (error() is
3095 called for errors); else, return NULL on error. */
3097 static struct target_ops
*
3098 find_default_run_target (char *do_mesg
)
3100 struct target_ops
**t
;
3101 struct target_ops
*runable
= NULL
;
3106 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
3109 if ((*t
)->to_can_run
&& target_can_run (*t
))
3119 error (_("Don't know how to %s. Try \"help target\"."), do_mesg
);
3128 find_default_attach (struct target_ops
*ops
, char *args
, int from_tty
)
3130 struct target_ops
*t
;
3132 t
= find_default_run_target ("attach");
3133 (t
->to_attach
) (t
, args
, from_tty
);
3138 find_default_create_inferior (struct target_ops
*ops
,
3139 char *exec_file
, char *allargs
, char **env
,
3142 struct target_ops
*t
;
3144 t
= find_default_run_target ("run");
3145 (t
->to_create_inferior
) (t
, exec_file
, allargs
, env
, from_tty
);
3150 find_default_can_async_p (struct target_ops
*ignore
)
3152 struct target_ops
*t
;
3154 /* This may be called before the target is pushed on the stack;
3155 look for the default process stratum. If there's none, gdb isn't
3156 configured with a native debugger, and target remote isn't
3158 t
= find_default_run_target (NULL
);
3159 if (t
&& t
->to_can_async_p
!= delegate_can_async_p
)
3160 return (t
->to_can_async_p
) (t
);
3165 find_default_is_async_p (struct target_ops
*ignore
)
3167 struct target_ops
*t
;
3169 /* This may be called before the target is pushed on the stack;
3170 look for the default process stratum. If there's none, gdb isn't
3171 configured with a native debugger, and target remote isn't
3173 t
= find_default_run_target (NULL
);
3174 if (t
&& t
->to_is_async_p
!= delegate_is_async_p
)
3175 return (t
->to_is_async_p
) (t
);
3180 find_default_supports_non_stop (struct target_ops
*self
)
3182 struct target_ops
*t
;
3184 t
= find_default_run_target (NULL
);
3185 if (t
&& t
->to_supports_non_stop
)
3186 return (t
->to_supports_non_stop
) (t
);
3191 target_supports_non_stop (void)
3193 struct target_ops
*t
;
3195 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3196 if (t
->to_supports_non_stop
)
3197 return t
->to_supports_non_stop (t
);
3202 /* Implement the "info proc" command. */
3205 target_info_proc (char *args
, enum info_proc_what what
)
3207 struct target_ops
*t
;
3209 /* If we're already connected to something that can get us OS
3210 related data, use it. Otherwise, try using the native
3212 if (current_target
.to_stratum
>= process_stratum
)
3213 t
= current_target
.beneath
;
3215 t
= find_default_run_target (NULL
);
3217 for (; t
!= NULL
; t
= t
->beneath
)
3219 if (t
->to_info_proc
!= NULL
)
3221 t
->to_info_proc (t
, args
, what
);
3224 fprintf_unfiltered (gdb_stdlog
,
3225 "target_info_proc (\"%s\", %d)\n", args
, what
);
3235 find_default_supports_disable_randomization (struct target_ops
*self
)
3237 struct target_ops
*t
;
3239 t
= find_default_run_target (NULL
);
3240 if (t
&& t
->to_supports_disable_randomization
)
3241 return (t
->to_supports_disable_randomization
) (t
);
3246 target_supports_disable_randomization (void)
3248 struct target_ops
*t
;
3250 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3251 if (t
->to_supports_disable_randomization
)
3252 return t
->to_supports_disable_randomization (t
);
3258 target_get_osdata (const char *type
)
3260 struct target_ops
*t
;
3262 /* If we're already connected to something that can get us OS
3263 related data, use it. Otherwise, try using the native
3265 if (current_target
.to_stratum
>= process_stratum
)
3266 t
= current_target
.beneath
;
3268 t
= find_default_run_target ("get OS data");
3273 return target_read_stralloc (t
, TARGET_OBJECT_OSDATA
, type
);
3276 /* Determine the current address space of thread PTID. */
3278 struct address_space
*
3279 target_thread_address_space (ptid_t ptid
)
3281 struct address_space
*aspace
;
3282 struct inferior
*inf
;
3283 struct target_ops
*t
;
3285 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3287 if (t
->to_thread_address_space
!= NULL
)
3289 aspace
= t
->to_thread_address_space (t
, ptid
);
3290 gdb_assert (aspace
);
3293 fprintf_unfiltered (gdb_stdlog
,
3294 "target_thread_address_space (%s) = %d\n",
3295 target_pid_to_str (ptid
),
3296 address_space_num (aspace
));
3301 /* Fall-back to the "main" address space of the inferior. */
3302 inf
= find_inferior_pid (ptid_get_pid (ptid
));
3304 if (inf
== NULL
|| inf
->aspace
== NULL
)
3305 internal_error (__FILE__
, __LINE__
,
3306 _("Can't determine the current "
3307 "address space of thread %s\n"),
3308 target_pid_to_str (ptid
));
3314 /* Target file operations. */
3316 static struct target_ops
*
3317 default_fileio_target (void)
3319 /* If we're already connected to something that can perform
3320 file I/O, use it. Otherwise, try using the native target. */
3321 if (current_target
.to_stratum
>= process_stratum
)
3322 return current_target
.beneath
;
3324 return find_default_run_target ("file I/O");
3327 /* Open FILENAME on the target, using FLAGS and MODE. Return a
3328 target file descriptor, or -1 if an error occurs (and set
3331 target_fileio_open (const char *filename
, int flags
, int mode
,
3334 struct target_ops
*t
;
3336 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3338 if (t
->to_fileio_open
!= NULL
)
3340 int fd
= t
->to_fileio_open (t
, filename
, flags
, mode
, target_errno
);
3343 fprintf_unfiltered (gdb_stdlog
,
3344 "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n",
3345 filename
, flags
, mode
,
3346 fd
, fd
!= -1 ? 0 : *target_errno
);
3351 *target_errno
= FILEIO_ENOSYS
;
3355 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
3356 Return the number of bytes written, or -1 if an error occurs
3357 (and set *TARGET_ERRNO). */
3359 target_fileio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
3360 ULONGEST offset
, int *target_errno
)
3362 struct target_ops
*t
;
3364 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3366 if (t
->to_fileio_pwrite
!= NULL
)
3368 int ret
= t
->to_fileio_pwrite (t
, fd
, write_buf
, len
, offset
,
3372 fprintf_unfiltered (gdb_stdlog
,
3373 "target_fileio_pwrite (%d,...,%d,%s) "
3375 fd
, len
, pulongest (offset
),
3376 ret
, ret
!= -1 ? 0 : *target_errno
);
3381 *target_errno
= FILEIO_ENOSYS
;
3385 /* Read up to LEN bytes FD on the target into READ_BUF.
3386 Return the number of bytes read, or -1 if an error occurs
3387 (and set *TARGET_ERRNO). */
3389 target_fileio_pread (int fd
, gdb_byte
*read_buf
, int len
,
3390 ULONGEST offset
, int *target_errno
)
3392 struct target_ops
*t
;
3394 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3396 if (t
->to_fileio_pread
!= NULL
)
3398 int ret
= t
->to_fileio_pread (t
, fd
, read_buf
, len
, offset
,
3402 fprintf_unfiltered (gdb_stdlog
,
3403 "target_fileio_pread (%d,...,%d,%s) "
3405 fd
, len
, pulongest (offset
),
3406 ret
, ret
!= -1 ? 0 : *target_errno
);
3411 *target_errno
= FILEIO_ENOSYS
;
3415 /* Close FD on the target. Return 0, or -1 if an error occurs
3416 (and set *TARGET_ERRNO). */
3418 target_fileio_close (int fd
, int *target_errno
)
3420 struct target_ops
*t
;
3422 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3424 if (t
->to_fileio_close
!= NULL
)
3426 int ret
= t
->to_fileio_close (t
, fd
, target_errno
);
3429 fprintf_unfiltered (gdb_stdlog
,
3430 "target_fileio_close (%d) = %d (%d)\n",
3431 fd
, ret
, ret
!= -1 ? 0 : *target_errno
);
3436 *target_errno
= FILEIO_ENOSYS
;
3440 /* Unlink FILENAME on the target. Return 0, or -1 if an error
3441 occurs (and set *TARGET_ERRNO). */
3443 target_fileio_unlink (const char *filename
, int *target_errno
)
3445 struct target_ops
*t
;
3447 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3449 if (t
->to_fileio_unlink
!= NULL
)
3451 int ret
= t
->to_fileio_unlink (t
, filename
, target_errno
);
3454 fprintf_unfiltered (gdb_stdlog
,
3455 "target_fileio_unlink (%s) = %d (%d)\n",
3456 filename
, ret
, ret
!= -1 ? 0 : *target_errno
);
3461 *target_errno
= FILEIO_ENOSYS
;
3465 /* Read value of symbolic link FILENAME on the target. Return a
3466 null-terminated string allocated via xmalloc, or NULL if an error
3467 occurs (and set *TARGET_ERRNO). */
3469 target_fileio_readlink (const char *filename
, int *target_errno
)
3471 struct target_ops
*t
;
3473 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3475 if (t
->to_fileio_readlink
!= NULL
)
3477 char *ret
= t
->to_fileio_readlink (t
, filename
, target_errno
);
3480 fprintf_unfiltered (gdb_stdlog
,
3481 "target_fileio_readlink (%s) = %s (%d)\n",
3482 filename
, ret
? ret
: "(nil)",
3483 ret
? 0 : *target_errno
);
3488 *target_errno
= FILEIO_ENOSYS
;
3493 target_fileio_close_cleanup (void *opaque
)
3495 int fd
= *(int *) opaque
;
3498 target_fileio_close (fd
, &target_errno
);
3501 /* Read target file FILENAME. Store the result in *BUF_P and
3502 return the size of the transferred data. PADDING additional bytes are
3503 available in *BUF_P. This is a helper function for
3504 target_fileio_read_alloc; see the declaration of that function for more
3508 target_fileio_read_alloc_1 (const char *filename
,
3509 gdb_byte
**buf_p
, int padding
)
3511 struct cleanup
*close_cleanup
;
3512 size_t buf_alloc
, buf_pos
;
3518 fd
= target_fileio_open (filename
, FILEIO_O_RDONLY
, 0700, &target_errno
);
3522 close_cleanup
= make_cleanup (target_fileio_close_cleanup
, &fd
);
3524 /* Start by reading up to 4K at a time. The target will throttle
3525 this number down if necessary. */
3527 buf
= xmalloc (buf_alloc
);
3531 n
= target_fileio_pread (fd
, &buf
[buf_pos
],
3532 buf_alloc
- buf_pos
- padding
, buf_pos
,
3536 /* An error occurred. */
3537 do_cleanups (close_cleanup
);
3543 /* Read all there was. */
3544 do_cleanups (close_cleanup
);
3554 /* If the buffer is filling up, expand it. */
3555 if (buf_alloc
< buf_pos
* 2)
3558 buf
= xrealloc (buf
, buf_alloc
);
3565 /* Read target file FILENAME. Store the result in *BUF_P and return
3566 the size of the transferred data. See the declaration in "target.h"
3567 function for more information about the return value. */
3570 target_fileio_read_alloc (const char *filename
, gdb_byte
**buf_p
)
3572 return target_fileio_read_alloc_1 (filename
, buf_p
, 0);
3575 /* Read target file FILENAME. The result is NUL-terminated and
3576 returned as a string, allocated using xmalloc. If an error occurs
3577 or the transfer is unsupported, NULL is returned. Empty objects
3578 are returned as allocated but empty strings. A warning is issued
3579 if the result contains any embedded NUL bytes. */
3582 target_fileio_read_stralloc (const char *filename
)
3586 LONGEST i
, transferred
;
3588 transferred
= target_fileio_read_alloc_1 (filename
, &buffer
, 1);
3589 bufstr
= (char *) buffer
;
3591 if (transferred
< 0)
3594 if (transferred
== 0)
3595 return xstrdup ("");
3597 bufstr
[transferred
] = 0;
3599 /* Check for embedded NUL bytes; but allow trailing NULs. */
3600 for (i
= strlen (bufstr
); i
< transferred
; i
++)
3603 warning (_("target file %s "
3604 "contained unexpected null characters"),
3614 default_region_ok_for_hw_watchpoint (struct target_ops
*self
,
3615 CORE_ADDR addr
, int len
)
3617 return (len
<= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT
);
3621 default_watchpoint_addr_within_range (struct target_ops
*target
,
3623 CORE_ADDR start
, int length
)
3625 return addr
>= start
&& addr
< start
+ length
;
3628 static struct gdbarch
*
3629 default_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
3631 return target_gdbarch ();
3647 return_minus_one (void)
3659 * Find the next target down the stack from the specified target.
3663 find_target_beneath (struct target_ops
*t
)
3671 find_target_at (enum strata stratum
)
3673 struct target_ops
*t
;
3675 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3676 if (t
->to_stratum
== stratum
)
3683 /* The inferior process has died. Long live the inferior! */
3686 generic_mourn_inferior (void)
3690 ptid
= inferior_ptid
;
3691 inferior_ptid
= null_ptid
;
3693 /* Mark breakpoints uninserted in case something tries to delete a
3694 breakpoint while we delete the inferior's threads (which would
3695 fail, since the inferior is long gone). */
3696 mark_breakpoints_out ();
3698 if (!ptid_equal (ptid
, null_ptid
))
3700 int pid
= ptid_get_pid (ptid
);
3701 exit_inferior (pid
);
3704 /* Note this wipes step-resume breakpoints, so needs to be done
3705 after exit_inferior, which ends up referencing the step-resume
3706 breakpoints through clear_thread_inferior_resources. */
3707 breakpoint_init_inferior (inf_exited
);
3709 registers_changed ();
3711 reopen_exec_file ();
3712 reinit_frame_cache ();
3714 if (deprecated_detach_hook
)
3715 deprecated_detach_hook ();
3718 /* Convert a normal process ID to a string. Returns the string in a
3722 normal_pid_to_str (ptid_t ptid
)
3724 static char buf
[32];
3726 xsnprintf (buf
, sizeof buf
, "process %d", ptid_get_pid (ptid
));
3731 dummy_pid_to_str (struct target_ops
*ops
, ptid_t ptid
)
3733 return normal_pid_to_str (ptid
);
3736 /* Error-catcher for target_find_memory_regions. */
3738 dummy_find_memory_regions (struct target_ops
*self
,
3739 find_memory_region_ftype ignore1
, void *ignore2
)
3741 error (_("Command not implemented for this target."));
3745 /* Error-catcher for target_make_corefile_notes. */
3747 dummy_make_corefile_notes (struct target_ops
*self
,
3748 bfd
*ignore1
, int *ignore2
)
3750 error (_("Command not implemented for this target."));
3754 /* Error-catcher for target_get_bookmark. */
3756 dummy_get_bookmark (struct target_ops
*self
, char *ignore1
, int ignore2
)
3762 /* Error-catcher for target_goto_bookmark. */
3764 dummy_goto_bookmark (struct target_ops
*self
, gdb_byte
*ignore
, int from_tty
)
3769 /* Set up the handful of non-empty slots needed by the dummy target
3773 init_dummy_target (void)
3775 dummy_target
.to_shortname
= "None";
3776 dummy_target
.to_longname
= "None";
3777 dummy_target
.to_doc
= "";
3778 dummy_target
.to_create_inferior
= find_default_create_inferior
;
3779 dummy_target
.to_supports_non_stop
= find_default_supports_non_stop
;
3780 dummy_target
.to_supports_disable_randomization
3781 = find_default_supports_disable_randomization
;
3782 dummy_target
.to_pid_to_str
= dummy_pid_to_str
;
3783 dummy_target
.to_stratum
= dummy_stratum
;
3784 dummy_target
.to_find_memory_regions
= dummy_find_memory_regions
;
3785 dummy_target
.to_make_corefile_notes
= dummy_make_corefile_notes
;
3786 dummy_target
.to_get_bookmark
= dummy_get_bookmark
;
3787 dummy_target
.to_goto_bookmark
= dummy_goto_bookmark
;
3788 dummy_target
.to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
3789 dummy_target
.to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
3790 dummy_target
.to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
3791 dummy_target
.to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
3792 dummy_target
.to_has_execution
3793 = (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
3794 dummy_target
.to_magic
= OPS_MAGIC
;
3796 install_dummy_methods (&dummy_target
);
3800 debug_to_open (char *args
, int from_tty
)
3802 debug_target
.to_open (args
, from_tty
);
3804 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
3808 target_close (struct target_ops
*targ
)
3810 gdb_assert (!target_is_pushed (targ
));
3812 if (targ
->to_xclose
!= NULL
)
3813 targ
->to_xclose (targ
);
3814 else if (targ
->to_close
!= NULL
)
3815 targ
->to_close (targ
);
3818 fprintf_unfiltered (gdb_stdlog
, "target_close ()\n");
3822 target_attach (char *args
, int from_tty
)
3824 current_target
.to_attach (¤t_target
, args
, from_tty
);
3826 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n",
3831 target_thread_alive (ptid_t ptid
)
3833 struct target_ops
*t
;
3835 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3837 if (t
->to_thread_alive
!= NULL
)
3841 retval
= t
->to_thread_alive (t
, ptid
);
3843 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
3844 ptid_get_pid (ptid
), retval
);
3854 target_find_new_threads (void)
3856 struct target_ops
*t
;
3858 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3860 if (t
->to_find_new_threads
!= NULL
)
3862 t
->to_find_new_threads (t
);
3864 fprintf_unfiltered (gdb_stdlog
, "target_find_new_threads ()\n");
3872 target_stop (ptid_t ptid
)
3876 warning (_("May not interrupt or stop the target, ignoring attempt"));
3880 (*current_target
.to_stop
) (¤t_target
, ptid
);
3884 debug_to_post_attach (struct target_ops
*self
, int pid
)
3886 debug_target
.to_post_attach (&debug_target
, pid
);
3888 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
3891 /* Concatenate ELEM to LIST, a comma separate list, and return the
3892 result. The LIST incoming argument is released. */
3895 str_comma_list_concat_elem (char *list
, const char *elem
)
3898 return xstrdup (elem
);
3900 return reconcat (list
, list
, ", ", elem
, (char *) NULL
);
3903 /* Helper for target_options_to_string. If OPT is present in
3904 TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET.
3905 Returns the new resulting string. OPT is removed from
3909 do_option (int *target_options
, char *ret
,
3910 int opt
, char *opt_str
)
3912 if ((*target_options
& opt
) != 0)
3914 ret
= str_comma_list_concat_elem (ret
, opt_str
);
3915 *target_options
&= ~opt
;
3922 target_options_to_string (int target_options
)
3926 #define DO_TARG_OPTION(OPT) \
3927 ret = do_option (&target_options, ret, OPT, #OPT)
3929 DO_TARG_OPTION (TARGET_WNOHANG
);
3931 if (target_options
!= 0)
3932 ret
= str_comma_list_concat_elem (ret
, "unknown???");
3940 debug_print_register (const char * func
,
3941 struct regcache
*regcache
, int regno
)
3943 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
3945 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
3946 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
)
3947 && gdbarch_register_name (gdbarch
, regno
) != NULL
3948 && gdbarch_register_name (gdbarch
, regno
)[0] != '\0')
3949 fprintf_unfiltered (gdb_stdlog
, "(%s)",
3950 gdbarch_register_name (gdbarch
, regno
));
3952 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
3953 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
))
3955 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
3956 int i
, size
= register_size (gdbarch
, regno
);
3957 gdb_byte buf
[MAX_REGISTER_SIZE
];
3959 regcache_raw_collect (regcache
, regno
, buf
);
3960 fprintf_unfiltered (gdb_stdlog
, " = ");
3961 for (i
= 0; i
< size
; i
++)
3963 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
3965 if (size
<= sizeof (LONGEST
))
3967 ULONGEST val
= extract_unsigned_integer (buf
, size
, byte_order
);
3969 fprintf_unfiltered (gdb_stdlog
, " %s %s",
3970 core_addr_to_string_nz (val
), plongest (val
));
3973 fprintf_unfiltered (gdb_stdlog
, "\n");
3977 target_fetch_registers (struct regcache
*regcache
, int regno
)
3979 struct target_ops
*t
;
3981 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3983 if (t
->to_fetch_registers
!= NULL
)
3985 t
->to_fetch_registers (t
, regcache
, regno
);
3987 debug_print_register ("target_fetch_registers", regcache
, regno
);
3994 target_store_registers (struct regcache
*regcache
, int regno
)
3996 struct target_ops
*t
;
3998 if (!may_write_registers
)
3999 error (_("Writing to registers is not allowed (regno %d)"), regno
);
4001 current_target
.to_store_registers (¤t_target
, regcache
, regno
);
4004 debug_print_register ("target_store_registers", regcache
, regno
);
4009 target_core_of_thread (ptid_t ptid
)
4011 struct target_ops
*t
;
4013 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4015 if (t
->to_core_of_thread
!= NULL
)
4017 int retval
= t
->to_core_of_thread (t
, ptid
);
4020 fprintf_unfiltered (gdb_stdlog
,
4021 "target_core_of_thread (%d) = %d\n",
4022 ptid_get_pid (ptid
), retval
);
4031 target_verify_memory (const gdb_byte
*data
, CORE_ADDR memaddr
, ULONGEST size
)
4033 struct target_ops
*t
;
4035 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4037 if (t
->to_verify_memory
!= NULL
)
4039 int retval
= t
->to_verify_memory (t
, data
, memaddr
, size
);
4042 fprintf_unfiltered (gdb_stdlog
,
4043 "target_verify_memory (%s, %s) = %d\n",
4044 paddress (target_gdbarch (), memaddr
),
4054 /* The documentation for this function is in its prototype declaration in
4058 target_insert_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4060 struct target_ops
*t
;
4062 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4063 if (t
->to_insert_mask_watchpoint
!= NULL
)
4067 ret
= t
->to_insert_mask_watchpoint (t
, addr
, mask
, rw
);
4070 fprintf_unfiltered (gdb_stdlog
, "\
4071 target_insert_mask_watchpoint (%s, %s, %d) = %d\n",
4072 core_addr_to_string (addr
),
4073 core_addr_to_string (mask
), rw
, ret
);
4081 /* The documentation for this function is in its prototype declaration in
4085 target_remove_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4087 struct target_ops
*t
;
4089 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4090 if (t
->to_remove_mask_watchpoint
!= NULL
)
4094 ret
= t
->to_remove_mask_watchpoint (t
, addr
, mask
, rw
);
4097 fprintf_unfiltered (gdb_stdlog
, "\
4098 target_remove_mask_watchpoint (%s, %s, %d) = %d\n",
4099 core_addr_to_string (addr
),
4100 core_addr_to_string (mask
), rw
, ret
);
4108 /* The documentation for this function is in its prototype declaration
4112 target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
)
4114 struct target_ops
*t
;
4116 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4117 if (t
->to_masked_watch_num_registers
!= NULL
)
4118 return t
->to_masked_watch_num_registers (t
, addr
, mask
);
4123 /* The documentation for this function is in its prototype declaration
4127 target_ranged_break_num_registers (void)
4129 struct target_ops
*t
;
4131 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4132 if (t
->to_ranged_break_num_registers
!= NULL
)
4133 return t
->to_ranged_break_num_registers (t
);
4140 struct btrace_target_info
*
4141 target_enable_btrace (ptid_t ptid
)
4143 struct target_ops
*t
;
4145 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4146 if (t
->to_enable_btrace
!= NULL
)
4147 return t
->to_enable_btrace (t
, ptid
);
4156 target_disable_btrace (struct btrace_target_info
*btinfo
)
4158 struct target_ops
*t
;
4160 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4161 if (t
->to_disable_btrace
!= NULL
)
4163 t
->to_disable_btrace (t
, btinfo
);
4173 target_teardown_btrace (struct btrace_target_info
*btinfo
)
4175 struct target_ops
*t
;
4177 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4178 if (t
->to_teardown_btrace
!= NULL
)
4180 t
->to_teardown_btrace (t
, btinfo
);
4190 target_read_btrace (VEC (btrace_block_s
) **btrace
,
4191 struct btrace_target_info
*btinfo
,
4192 enum btrace_read_type type
)
4194 struct target_ops
*t
;
4196 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4197 if (t
->to_read_btrace
!= NULL
)
4198 return t
->to_read_btrace (t
, btrace
, btinfo
, type
);
4201 return BTRACE_ERR_NOT_SUPPORTED
;
4207 target_stop_recording (void)
4209 struct target_ops
*t
;
4211 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4212 if (t
->to_stop_recording
!= NULL
)
4214 t
->to_stop_recording (t
);
4218 /* This is optional. */
4224 target_info_record (void)
4226 struct target_ops
*t
;
4228 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4229 if (t
->to_info_record
!= NULL
)
4231 t
->to_info_record (t
);
4241 target_save_record (const char *filename
)
4243 struct target_ops
*t
;
4245 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4246 if (t
->to_save_record
!= NULL
)
4248 t
->to_save_record (t
, filename
);
4258 target_supports_delete_record (void)
4260 struct target_ops
*t
;
4262 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4263 if (t
->to_delete_record
!= NULL
)
4272 target_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
)
4279 t
->to_delete_record (t
);
4289 target_record_is_replaying (void)
4291 struct target_ops
*t
;
4293 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4294 if (t
->to_record_is_replaying
!= NULL
)
4295 return t
->to_record_is_replaying (t
);
4303 target_goto_record_begin (void)
4305 struct target_ops
*t
;
4307 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4308 if (t
->to_goto_record_begin
!= NULL
)
4310 t
->to_goto_record_begin (t
);
4320 target_goto_record_end (void)
4322 struct target_ops
*t
;
4324 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4325 if (t
->to_goto_record_end
!= NULL
)
4327 t
->to_goto_record_end (t
);
4337 target_goto_record (ULONGEST insn
)
4339 struct target_ops
*t
;
4341 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4342 if (t
->to_goto_record
!= NULL
)
4344 t
->to_goto_record (t
, insn
);
4354 target_insn_history (int size
, int flags
)
4356 struct target_ops
*t
;
4358 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4359 if (t
->to_insn_history
!= NULL
)
4361 t
->to_insn_history (t
, size
, flags
);
4371 target_insn_history_from (ULONGEST from
, int size
, int flags
)
4373 struct target_ops
*t
;
4375 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4376 if (t
->to_insn_history_from
!= NULL
)
4378 t
->to_insn_history_from (t
, from
, size
, flags
);
4388 target_insn_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4390 struct target_ops
*t
;
4392 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4393 if (t
->to_insn_history_range
!= NULL
)
4395 t
->to_insn_history_range (t
, begin
, end
, flags
);
4405 target_call_history (int size
, int flags
)
4407 struct target_ops
*t
;
4409 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4410 if (t
->to_call_history
!= NULL
)
4412 t
->to_call_history (t
, size
, flags
);
4422 target_call_history_from (ULONGEST begin
, int size
, int flags
)
4424 struct target_ops
*t
;
4426 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4427 if (t
->to_call_history_from
!= NULL
)
4429 t
->to_call_history_from (t
, begin
, size
, flags
);
4439 target_call_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4441 struct target_ops
*t
;
4443 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4444 if (t
->to_call_history_range
!= NULL
)
4446 t
->to_call_history_range (t
, begin
, end
, flags
);
4454 debug_to_prepare_to_store (struct target_ops
*self
, struct regcache
*regcache
)
4456 debug_target
.to_prepare_to_store (&debug_target
, regcache
);
4458 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
4463 const struct frame_unwind
*
4464 target_get_unwinder (void)
4466 struct target_ops
*t
;
4468 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4469 if (t
->to_get_unwinder
!= NULL
)
4470 return t
->to_get_unwinder
;
4477 const struct frame_unwind
*
4478 target_get_tailcall_unwinder (void)
4480 struct target_ops
*t
;
4482 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4483 if (t
->to_get_tailcall_unwinder
!= NULL
)
4484 return t
->to_get_tailcall_unwinder
;
4492 forward_target_decr_pc_after_break (struct target_ops
*ops
,
4493 struct gdbarch
*gdbarch
)
4495 for (; ops
!= NULL
; ops
= ops
->beneath
)
4496 if (ops
->to_decr_pc_after_break
!= NULL
)
4497 return ops
->to_decr_pc_after_break (ops
, gdbarch
);
4499 return gdbarch_decr_pc_after_break (gdbarch
);
4505 target_decr_pc_after_break (struct gdbarch
*gdbarch
)
4507 return forward_target_decr_pc_after_break (current_target
.beneath
, gdbarch
);
4511 deprecated_debug_xfer_memory (CORE_ADDR memaddr
, bfd_byte
*myaddr
, int len
,
4512 int write
, struct mem_attrib
*attrib
,
4513 struct target_ops
*target
)
4517 retval
= debug_target
.deprecated_xfer_memory (memaddr
, myaddr
, len
, write
,
4520 fprintf_unfiltered (gdb_stdlog
,
4521 "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d",
4522 paddress (target_gdbarch (), memaddr
), len
,
4523 write
? "write" : "read", retval
);
4529 fputs_unfiltered (", bytes =", gdb_stdlog
);
4530 for (i
= 0; i
< retval
; i
++)
4532 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
4534 if (targetdebug
< 2 && i
> 0)
4536 fprintf_unfiltered (gdb_stdlog
, " ...");
4539 fprintf_unfiltered (gdb_stdlog
, "\n");
4542 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
4546 fputc_unfiltered ('\n', gdb_stdlog
);
4552 debug_to_files_info (struct target_ops
*target
)
4554 debug_target
.to_files_info (target
);
4556 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
4560 debug_to_insert_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4561 struct bp_target_info
*bp_tgt
)
4565 retval
= debug_target
.to_insert_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4567 fprintf_unfiltered (gdb_stdlog
,
4568 "target_insert_breakpoint (%s, xxx) = %ld\n",
4569 core_addr_to_string (bp_tgt
->placed_address
),
4570 (unsigned long) retval
);
4575 debug_to_remove_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4576 struct bp_target_info
*bp_tgt
)
4580 retval
= debug_target
.to_remove_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4582 fprintf_unfiltered (gdb_stdlog
,
4583 "target_remove_breakpoint (%s, xxx) = %ld\n",
4584 core_addr_to_string (bp_tgt
->placed_address
),
4585 (unsigned long) retval
);
4590 debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
4591 int type
, int cnt
, int from_tty
)
4595 retval
= debug_target
.to_can_use_hw_breakpoint (&debug_target
,
4596 type
, cnt
, from_tty
);
4598 fprintf_unfiltered (gdb_stdlog
,
4599 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
4600 (unsigned long) type
,
4601 (unsigned long) cnt
,
4602 (unsigned long) from_tty
,
4603 (unsigned long) retval
);
4608 debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
4609 CORE_ADDR addr
, int len
)
4613 retval
= debug_target
.to_region_ok_for_hw_watchpoint (&debug_target
,
4616 fprintf_unfiltered (gdb_stdlog
,
4617 "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n",
4618 core_addr_to_string (addr
), (unsigned long) len
,
4619 core_addr_to_string (retval
));
4624 debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
4625 CORE_ADDR addr
, int len
, int rw
,
4626 struct expression
*cond
)
4630 retval
= debug_target
.to_can_accel_watchpoint_condition (&debug_target
,
4634 fprintf_unfiltered (gdb_stdlog
,
4635 "target_can_accel_watchpoint_condition "
4636 "(%s, %d, %d, %s) = %ld\n",
4637 core_addr_to_string (addr
), len
, rw
,
4638 host_address_to_string (cond
), (unsigned long) retval
);
4643 debug_to_stopped_by_watchpoint (struct target_ops
*ops
)
4647 retval
= debug_target
.to_stopped_by_watchpoint (&debug_target
);
4649 fprintf_unfiltered (gdb_stdlog
,
4650 "target_stopped_by_watchpoint () = %ld\n",
4651 (unsigned long) retval
);
4656 debug_to_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr
)
4660 retval
= debug_target
.to_stopped_data_address (target
, addr
);
4662 fprintf_unfiltered (gdb_stdlog
,
4663 "target_stopped_data_address ([%s]) = %ld\n",
4664 core_addr_to_string (*addr
),
4665 (unsigned long)retval
);
4670 debug_to_watchpoint_addr_within_range (struct target_ops
*target
,
4672 CORE_ADDR start
, int length
)
4676 retval
= debug_target
.to_watchpoint_addr_within_range (target
, addr
,
4679 fprintf_filtered (gdb_stdlog
,
4680 "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n",
4681 core_addr_to_string (addr
), core_addr_to_string (start
),
4687 debug_to_insert_hw_breakpoint (struct target_ops
*self
,
4688 struct gdbarch
*gdbarch
,
4689 struct bp_target_info
*bp_tgt
)
4693 retval
= debug_target
.to_insert_hw_breakpoint (&debug_target
,
4696 fprintf_unfiltered (gdb_stdlog
,
4697 "target_insert_hw_breakpoint (%s, xxx) = %ld\n",
4698 core_addr_to_string (bp_tgt
->placed_address
),
4699 (unsigned long) retval
);
4704 debug_to_remove_hw_breakpoint (struct target_ops
*self
,
4705 struct gdbarch
*gdbarch
,
4706 struct bp_target_info
*bp_tgt
)
4710 retval
= debug_target
.to_remove_hw_breakpoint (&debug_target
,
4713 fprintf_unfiltered (gdb_stdlog
,
4714 "target_remove_hw_breakpoint (%s, xxx) = %ld\n",
4715 core_addr_to_string (bp_tgt
->placed_address
),
4716 (unsigned long) retval
);
4721 debug_to_insert_watchpoint (struct target_ops
*self
,
4722 CORE_ADDR addr
, int len
, int type
,
4723 struct expression
*cond
)
4727 retval
= debug_target
.to_insert_watchpoint (&debug_target
,
4728 addr
, len
, type
, cond
);
4730 fprintf_unfiltered (gdb_stdlog
,
4731 "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n",
4732 core_addr_to_string (addr
), len
, type
,
4733 host_address_to_string (cond
), (unsigned long) retval
);
4738 debug_to_remove_watchpoint (struct target_ops
*self
,
4739 CORE_ADDR addr
, int len
, int type
,
4740 struct expression
*cond
)
4744 retval
= debug_target
.to_remove_watchpoint (&debug_target
,
4745 addr
, len
, type
, cond
);
4747 fprintf_unfiltered (gdb_stdlog
,
4748 "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n",
4749 core_addr_to_string (addr
), len
, type
,
4750 host_address_to_string (cond
), (unsigned long) retval
);
4755 debug_to_terminal_init (struct target_ops
*self
)
4757 debug_target
.to_terminal_init (&debug_target
);
4759 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
4763 debug_to_terminal_inferior (struct target_ops
*self
)
4765 debug_target
.to_terminal_inferior (&debug_target
);
4767 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
4771 debug_to_terminal_ours_for_output (struct target_ops
*self
)
4773 debug_target
.to_terminal_ours_for_output (&debug_target
);
4775 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
4779 debug_to_terminal_ours (struct target_ops
*self
)
4781 debug_target
.to_terminal_ours (&debug_target
);
4783 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
4787 debug_to_terminal_save_ours (struct target_ops
*self
)
4789 debug_target
.to_terminal_save_ours (&debug_target
);
4791 fprintf_unfiltered (gdb_stdlog
, "target_terminal_save_ours ()\n");
4795 debug_to_terminal_info (struct target_ops
*self
,
4796 const char *arg
, int from_tty
)
4798 debug_target
.to_terminal_info (&debug_target
, arg
, from_tty
);
4800 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
4805 debug_to_load (struct target_ops
*self
, char *args
, int from_tty
)
4807 debug_target
.to_load (&debug_target
, args
, from_tty
);
4809 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
4813 debug_to_post_startup_inferior (struct target_ops
*self
, ptid_t ptid
)
4815 debug_target
.to_post_startup_inferior (&debug_target
, ptid
);
4817 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
4818 ptid_get_pid (ptid
));
4822 debug_to_insert_fork_catchpoint (struct target_ops
*self
, int pid
)
4826 retval
= debug_target
.to_insert_fork_catchpoint (&debug_target
, pid
);
4828 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d) = %d\n",
4835 debug_to_remove_fork_catchpoint (struct target_ops
*self
, int pid
)
4839 retval
= debug_target
.to_remove_fork_catchpoint (&debug_target
, pid
);
4841 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
4848 debug_to_insert_vfork_catchpoint (struct target_ops
*self
, int pid
)
4852 retval
= debug_target
.to_insert_vfork_catchpoint (&debug_target
, pid
);
4854 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d) = %d\n",
4861 debug_to_remove_vfork_catchpoint (struct target_ops
*self
, int pid
)
4865 retval
= debug_target
.to_remove_vfork_catchpoint (&debug_target
, pid
);
4867 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
4874 debug_to_insert_exec_catchpoint (struct target_ops
*self
, int pid
)
4878 retval
= debug_target
.to_insert_exec_catchpoint (&debug_target
, pid
);
4880 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d) = %d\n",
4887 debug_to_remove_exec_catchpoint (struct target_ops
*self
, int pid
)
4891 retval
= debug_target
.to_remove_exec_catchpoint (&debug_target
, pid
);
4893 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
4900 debug_to_has_exited (struct target_ops
*self
,
4901 int pid
, int wait_status
, int *exit_status
)
4905 has_exited
= debug_target
.to_has_exited (&debug_target
,
4906 pid
, wait_status
, exit_status
);
4908 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
4909 pid
, wait_status
, *exit_status
, has_exited
);
4915 debug_to_can_run (struct target_ops
*self
)
4919 retval
= debug_target
.to_can_run (&debug_target
);
4921 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
4926 static struct gdbarch
*
4927 debug_to_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
4929 struct gdbarch
*retval
;
4931 retval
= debug_target
.to_thread_architecture (ops
, ptid
);
4933 fprintf_unfiltered (gdb_stdlog
,
4934 "target_thread_architecture (%s) = %s [%s]\n",
4935 target_pid_to_str (ptid
),
4936 host_address_to_string (retval
),
4937 gdbarch_bfd_arch_info (retval
)->printable_name
);
4942 debug_to_stop (struct target_ops
*self
, ptid_t ptid
)
4944 debug_target
.to_stop (&debug_target
, ptid
);
4946 fprintf_unfiltered (gdb_stdlog
, "target_stop (%s)\n",
4947 target_pid_to_str (ptid
));
4951 debug_to_rcmd (struct target_ops
*self
, char *command
,
4952 struct ui_file
*outbuf
)
4954 debug_target
.to_rcmd (&debug_target
, command
, outbuf
);
4955 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
4959 debug_to_pid_to_exec_file (struct target_ops
*self
, int pid
)
4963 exec_file
= debug_target
.to_pid_to_exec_file (&debug_target
, pid
);
4965 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
4972 setup_target_debug (void)
4974 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
4976 current_target
.to_open
= debug_to_open
;
4977 current_target
.to_post_attach
= debug_to_post_attach
;
4978 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
4979 current_target
.deprecated_xfer_memory
= deprecated_debug_xfer_memory
;
4980 current_target
.to_files_info
= debug_to_files_info
;
4981 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
4982 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
4983 current_target
.to_can_use_hw_breakpoint
= debug_to_can_use_hw_breakpoint
;
4984 current_target
.to_insert_hw_breakpoint
= debug_to_insert_hw_breakpoint
;
4985 current_target
.to_remove_hw_breakpoint
= debug_to_remove_hw_breakpoint
;
4986 current_target
.to_insert_watchpoint
= debug_to_insert_watchpoint
;
4987 current_target
.to_remove_watchpoint
= debug_to_remove_watchpoint
;
4988 current_target
.to_stopped_by_watchpoint
= debug_to_stopped_by_watchpoint
;
4989 current_target
.to_stopped_data_address
= debug_to_stopped_data_address
;
4990 current_target
.to_watchpoint_addr_within_range
4991 = debug_to_watchpoint_addr_within_range
;
4992 current_target
.to_region_ok_for_hw_watchpoint
4993 = debug_to_region_ok_for_hw_watchpoint
;
4994 current_target
.to_can_accel_watchpoint_condition
4995 = debug_to_can_accel_watchpoint_condition
;
4996 current_target
.to_terminal_init
= debug_to_terminal_init
;
4997 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
4998 current_target
.to_terminal_ours_for_output
4999 = debug_to_terminal_ours_for_output
;
5000 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
5001 current_target
.to_terminal_save_ours
= debug_to_terminal_save_ours
;
5002 current_target
.to_terminal_info
= debug_to_terminal_info
;
5003 current_target
.to_load
= debug_to_load
;
5004 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
5005 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
5006 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
5007 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
5008 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
5009 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
5010 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
5011 current_target
.to_has_exited
= debug_to_has_exited
;
5012 current_target
.to_can_run
= debug_to_can_run
;
5013 current_target
.to_stop
= debug_to_stop
;
5014 current_target
.to_rcmd
= debug_to_rcmd
;
5015 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
5016 current_target
.to_thread_architecture
= debug_to_thread_architecture
;
5020 static char targ_desc
[] =
5021 "Names of targets and files being debugged.\nShows the entire \
5022 stack of targets currently in use (including the exec-file,\n\
5023 core-file, and process, if any), as well as the symbol file name.";
5026 default_rcmd (struct target_ops
*self
, char *command
, struct ui_file
*output
)
5028 error (_("\"monitor\" command not supported by this target."));
5032 do_monitor_command (char *cmd
,
5035 target_rcmd (cmd
, gdb_stdtarg
);
5038 /* Print the name of each layers of our target stack. */
5041 maintenance_print_target_stack (char *cmd
, int from_tty
)
5043 struct target_ops
*t
;
5045 printf_filtered (_("The current target stack is:\n"));
5047 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
5049 printf_filtered (" - %s (%s)\n", t
->to_shortname
, t
->to_longname
);
5053 /* Controls if async mode is permitted. */
5054 int target_async_permitted
= 0;
5056 /* The set command writes to this variable. If the inferior is
5057 executing, target_async_permitted is *not* updated. */
5058 static int target_async_permitted_1
= 0;
5061 set_target_async_command (char *args
, int from_tty
,
5062 struct cmd_list_element
*c
)
5064 if (have_live_inferiors ())
5066 target_async_permitted_1
= target_async_permitted
;
5067 error (_("Cannot change this setting while the inferior is running."));
5070 target_async_permitted
= target_async_permitted_1
;
5074 show_target_async_command (struct ui_file
*file
, int from_tty
,
5075 struct cmd_list_element
*c
,
5078 fprintf_filtered (file
,
5079 _("Controlling the inferior in "
5080 "asynchronous mode is %s.\n"), value
);
5083 /* Temporary copies of permission settings. */
5085 static int may_write_registers_1
= 1;
5086 static int may_write_memory_1
= 1;
5087 static int may_insert_breakpoints_1
= 1;
5088 static int may_insert_tracepoints_1
= 1;
5089 static int may_insert_fast_tracepoints_1
= 1;
5090 static int may_stop_1
= 1;
5092 /* Make the user-set values match the real values again. */
5095 update_target_permissions (void)
5097 may_write_registers_1
= may_write_registers
;
5098 may_write_memory_1
= may_write_memory
;
5099 may_insert_breakpoints_1
= may_insert_breakpoints
;
5100 may_insert_tracepoints_1
= may_insert_tracepoints
;
5101 may_insert_fast_tracepoints_1
= may_insert_fast_tracepoints
;
5102 may_stop_1
= may_stop
;
5105 /* The one function handles (most of) the permission flags in the same
5109 set_target_permissions (char *args
, int from_tty
,
5110 struct cmd_list_element
*c
)
5112 if (target_has_execution
)
5114 update_target_permissions ();
5115 error (_("Cannot change this setting while the inferior is running."));
5118 /* Make the real values match the user-changed values. */
5119 may_write_registers
= may_write_registers_1
;
5120 may_insert_breakpoints
= may_insert_breakpoints_1
;
5121 may_insert_tracepoints
= may_insert_tracepoints_1
;
5122 may_insert_fast_tracepoints
= may_insert_fast_tracepoints_1
;
5123 may_stop
= may_stop_1
;
5124 update_observer_mode ();
5127 /* Set memory write permission independently of observer mode. */
5130 set_write_memory_permission (char *args
, int from_tty
,
5131 struct cmd_list_element
*c
)
5133 /* Make the real values match the user-changed values. */
5134 may_write_memory
= may_write_memory_1
;
5135 update_observer_mode ();
5140 initialize_targets (void)
5142 init_dummy_target ();
5143 push_target (&dummy_target
);
5145 add_info ("target", target_info
, targ_desc
);
5146 add_info ("files", target_info
, targ_desc
);
5148 add_setshow_zuinteger_cmd ("target", class_maintenance
, &targetdebug
, _("\
5149 Set target debugging."), _("\
5150 Show target debugging."), _("\
5151 When non-zero, target debugging is enabled. Higher numbers are more\n\
5152 verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
5156 &setdebuglist
, &showdebuglist
);
5158 add_setshow_boolean_cmd ("trust-readonly-sections", class_support
,
5159 &trust_readonly
, _("\
5160 Set mode for reading from readonly sections."), _("\
5161 Show mode for reading from readonly sections."), _("\
5162 When this mode is on, memory reads from readonly sections (such as .text)\n\
5163 will be read from the object file instead of from the target. This will\n\
5164 result in significant performance improvement for remote targets."),
5166 show_trust_readonly
,
5167 &setlist
, &showlist
);
5169 add_com ("monitor", class_obscure
, do_monitor_command
,
5170 _("Send a command to the remote monitor (remote targets only)."));
5172 add_cmd ("target-stack", class_maintenance
, maintenance_print_target_stack
,
5173 _("Print the name of each layer of the internal target stack."),
5174 &maintenanceprintlist
);
5176 add_setshow_boolean_cmd ("target-async", no_class
,
5177 &target_async_permitted_1
, _("\
5178 Set whether gdb controls the inferior in asynchronous mode."), _("\
5179 Show whether gdb controls the inferior in asynchronous mode."), _("\
5180 Tells gdb whether to control the inferior in asynchronous mode."),
5181 set_target_async_command
,
5182 show_target_async_command
,
5186 add_setshow_boolean_cmd ("may-write-registers", class_support
,
5187 &may_write_registers_1
, _("\
5188 Set permission to write into registers."), _("\
5189 Show permission to write into registers."), _("\
5190 When this permission is on, GDB may write into the target's registers.\n\
5191 Otherwise, any sort of write attempt will result in an error."),
5192 set_target_permissions
, NULL
,
5193 &setlist
, &showlist
);
5195 add_setshow_boolean_cmd ("may-write-memory", class_support
,
5196 &may_write_memory_1
, _("\
5197 Set permission to write into target memory."), _("\
5198 Show permission to write into target memory."), _("\
5199 When this permission is on, GDB may write into the target's memory.\n\
5200 Otherwise, any sort of write attempt will result in an error."),
5201 set_write_memory_permission
, NULL
,
5202 &setlist
, &showlist
);
5204 add_setshow_boolean_cmd ("may-insert-breakpoints", class_support
,
5205 &may_insert_breakpoints_1
, _("\
5206 Set permission to insert breakpoints in the target."), _("\
5207 Show permission to insert breakpoints in the target."), _("\
5208 When this permission is on, GDB may insert breakpoints in the program.\n\
5209 Otherwise, any sort of insertion attempt will result in an error."),
5210 set_target_permissions
, NULL
,
5211 &setlist
, &showlist
);
5213 add_setshow_boolean_cmd ("may-insert-tracepoints", class_support
,
5214 &may_insert_tracepoints_1
, _("\
5215 Set permission to insert tracepoints in the target."), _("\
5216 Show permission to insert tracepoints in the target."), _("\
5217 When this permission is on, GDB may insert tracepoints in the program.\n\
5218 Otherwise, any sort of insertion attempt will result in an error."),
5219 set_target_permissions
, NULL
,
5220 &setlist
, &showlist
);
5222 add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support
,
5223 &may_insert_fast_tracepoints_1
, _("\
5224 Set permission to insert fast tracepoints in the target."), _("\
5225 Show permission to insert fast tracepoints in the target."), _("\
5226 When this permission is on, GDB may insert fast tracepoints.\n\
5227 Otherwise, any sort of insertion attempt will result in an error."),
5228 set_target_permissions
, NULL
,
5229 &setlist
, &showlist
);
5231 add_setshow_boolean_cmd ("may-interrupt", class_support
,
5233 Set permission to interrupt or signal the target."), _("\
5234 Show permission to interrupt or signal the target."), _("\
5235 When this permission is on, GDB may interrupt/stop the target's execution.\n\
5236 Otherwise, any attempt to interrupt or stop will be ignored."),
5237 set_target_permissions
, NULL
,
5238 &setlist
, &showlist
);