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 INHERIT (to_files_info
, t
);
605 /* Do not inherit to_insert_breakpoint. */
606 /* Do not inherit to_remove_breakpoint. */
607 INHERIT (to_can_use_hw_breakpoint
, t
);
608 INHERIT (to_insert_hw_breakpoint
, t
);
609 INHERIT (to_remove_hw_breakpoint
, t
);
610 /* Do not inherit to_ranged_break_num_registers. */
611 INHERIT (to_insert_watchpoint
, t
);
612 INHERIT (to_remove_watchpoint
, t
);
613 /* Do not inherit to_insert_mask_watchpoint. */
614 /* Do not inherit to_remove_mask_watchpoint. */
615 /* Do not inherit to_stopped_data_address. */
616 INHERIT (to_have_steppable_watchpoint
, t
);
617 INHERIT (to_have_continuable_watchpoint
, t
);
618 /* Do not inherit to_stopped_by_watchpoint. */
619 INHERIT (to_watchpoint_addr_within_range
, t
);
620 INHERIT (to_region_ok_for_hw_watchpoint
, t
);
621 INHERIT (to_can_accel_watchpoint_condition
, t
);
622 /* Do not inherit to_masked_watch_num_registers. */
623 INHERIT (to_terminal_init
, t
);
624 INHERIT (to_terminal_inferior
, t
);
625 INHERIT (to_terminal_ours_for_output
, t
);
626 INHERIT (to_terminal_ours
, t
);
627 INHERIT (to_terminal_save_ours
, t
);
628 INHERIT (to_terminal_info
, t
);
629 /* Do not inherit to_kill. */
630 INHERIT (to_load
, t
);
631 /* Do no inherit to_create_inferior. */
632 INHERIT (to_post_startup_inferior
, t
);
633 INHERIT (to_insert_fork_catchpoint
, t
);
634 INHERIT (to_remove_fork_catchpoint
, t
);
635 INHERIT (to_insert_vfork_catchpoint
, t
);
636 INHERIT (to_remove_vfork_catchpoint
, t
);
637 /* Do not inherit to_follow_fork. */
638 INHERIT (to_insert_exec_catchpoint
, t
);
639 INHERIT (to_remove_exec_catchpoint
, t
);
640 INHERIT (to_set_syscall_catchpoint
, t
);
641 INHERIT (to_has_exited
, t
);
642 /* Do not inherit to_mourn_inferior. */
643 INHERIT (to_can_run
, t
);
644 /* Do not inherit to_pass_signals. */
645 /* Do not inherit to_program_signals. */
646 /* Do not inherit to_thread_alive. */
647 /* Do not inherit to_find_new_threads. */
648 /* Do not inherit to_pid_to_str. */
649 INHERIT (to_extra_thread_info
, t
);
650 INHERIT (to_thread_name
, t
);
651 INHERIT (to_stop
, t
);
652 /* Do not inherit to_xfer_partial. */
653 /* Do not inherit to_rcmd. */
654 INHERIT (to_pid_to_exec_file
, t
);
655 INHERIT (to_log_command
, t
);
656 INHERIT (to_stratum
, t
);
657 /* Do not inherit to_has_all_memory. */
658 /* Do not inherit to_has_memory. */
659 /* Do not inherit to_has_stack. */
660 /* Do not inherit to_has_registers. */
661 /* Do not inherit to_has_execution. */
662 INHERIT (to_has_thread_control
, t
);
663 /* Do not inherit to_can_async_p. */
664 /* Do not inherit to_is_async_p. */
665 /* Do not inherit to_async. */
666 INHERIT (to_find_memory_regions
, t
);
667 INHERIT (to_make_corefile_notes
, t
);
668 INHERIT (to_get_bookmark
, t
);
669 INHERIT (to_goto_bookmark
, t
);
670 /* Do not inherit to_get_thread_local_address. */
671 INHERIT (to_can_execute_reverse
, t
);
672 INHERIT (to_execution_direction
, t
);
673 INHERIT (to_thread_architecture
, t
);
674 /* Do not inherit to_read_description. */
675 INHERIT (to_get_ada_task_ptid
, t
);
676 /* Do not inherit to_search_memory. */
677 INHERIT (to_supports_multi_process
, t
);
678 INHERIT (to_supports_enable_disable_tracepoint
, t
);
679 INHERIT (to_supports_string_tracing
, t
);
680 INHERIT (to_trace_init
, t
);
681 INHERIT (to_download_tracepoint
, t
);
682 INHERIT (to_can_download_tracepoint
, t
);
683 INHERIT (to_download_trace_state_variable
, t
);
684 INHERIT (to_enable_tracepoint
, t
);
685 INHERIT (to_disable_tracepoint
, t
);
686 INHERIT (to_trace_set_readonly_regions
, t
);
687 INHERIT (to_trace_start
, t
);
688 INHERIT (to_get_trace_status
, t
);
689 INHERIT (to_get_tracepoint_status
, t
);
690 INHERIT (to_trace_stop
, t
);
691 INHERIT (to_trace_find
, t
);
692 INHERIT (to_get_trace_state_variable_value
, t
);
693 INHERIT (to_save_trace_data
, t
);
694 INHERIT (to_upload_tracepoints
, t
);
695 INHERIT (to_upload_trace_state_variables
, t
);
696 INHERIT (to_get_raw_trace_data
, t
);
697 INHERIT (to_get_min_fast_tracepoint_insn_len
, t
);
698 INHERIT (to_set_disconnected_tracing
, t
);
699 INHERIT (to_set_circular_trace_buffer
, t
);
700 INHERIT (to_set_trace_buffer_size
, t
);
701 INHERIT (to_set_trace_notes
, t
);
702 INHERIT (to_get_tib_address
, t
);
703 INHERIT (to_set_permissions
, t
);
704 INHERIT (to_static_tracepoint_marker_at
, t
);
705 INHERIT (to_static_tracepoint_markers_by_strid
, t
);
706 INHERIT (to_traceframe_info
, t
);
707 INHERIT (to_use_agent
, t
);
708 INHERIT (to_can_use_agent
, t
);
709 INHERIT (to_augmented_libraries_svr4_read
, t
);
710 INHERIT (to_magic
, t
);
711 INHERIT (to_supports_evaluation_of_breakpoint_conditions
, t
);
712 INHERIT (to_can_run_breakpoint_commands
, t
);
713 /* Do not inherit to_memory_map. */
714 /* Do not inherit to_flash_erase. */
715 /* Do not inherit to_flash_done. */
719 /* Clean up a target struct so it no longer has any zero pointers in
720 it. Some entries are defaulted to a method that print an error,
721 others are hard-wired to a standard recursive default. */
723 #define de_fault(field, value) \
724 if (!current_target.field) \
725 current_target.field = value
728 (void (*) (char *, int))
731 (void (*) (struct target_ops
*))
733 de_fault (deprecated_xfer_memory
,
734 (int (*) (CORE_ADDR
, gdb_byte
*, int, int,
735 struct mem_attrib
*, struct target_ops
*))
737 de_fault (to_files_info
,
738 (void (*) (struct target_ops
*))
740 de_fault (to_can_use_hw_breakpoint
,
741 (int (*) (struct target_ops
*, int, int, int))
743 de_fault (to_insert_hw_breakpoint
,
744 (int (*) (struct target_ops
*, struct gdbarch
*,
745 struct bp_target_info
*))
747 de_fault (to_remove_hw_breakpoint
,
748 (int (*) (struct target_ops
*, struct gdbarch
*,
749 struct bp_target_info
*))
751 de_fault (to_insert_watchpoint
,
752 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
753 struct expression
*))
755 de_fault (to_remove_watchpoint
,
756 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
757 struct expression
*))
759 de_fault (to_watchpoint_addr_within_range
,
760 default_watchpoint_addr_within_range
);
761 de_fault (to_region_ok_for_hw_watchpoint
,
762 default_region_ok_for_hw_watchpoint
);
763 de_fault (to_can_accel_watchpoint_condition
,
764 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
765 struct expression
*))
767 de_fault (to_terminal_init
,
768 (void (*) (struct target_ops
*))
770 de_fault (to_terminal_inferior
,
771 (void (*) (struct target_ops
*))
773 de_fault (to_terminal_ours_for_output
,
774 (void (*) (struct target_ops
*))
776 de_fault (to_terminal_ours
,
777 (void (*) (struct target_ops
*))
779 de_fault (to_terminal_save_ours
,
780 (void (*) (struct target_ops
*))
782 de_fault (to_terminal_info
,
783 default_terminal_info
);
785 (void (*) (struct target_ops
*, char *, int))
787 de_fault (to_post_startup_inferior
,
788 (void (*) (struct target_ops
*, ptid_t
))
790 de_fault (to_insert_fork_catchpoint
,
791 (int (*) (struct target_ops
*, int))
793 de_fault (to_remove_fork_catchpoint
,
794 (int (*) (struct target_ops
*, int))
796 de_fault (to_insert_vfork_catchpoint
,
797 (int (*) (struct target_ops
*, int))
799 de_fault (to_remove_vfork_catchpoint
,
800 (int (*) (struct target_ops
*, int))
802 de_fault (to_insert_exec_catchpoint
,
803 (int (*) (struct target_ops
*, int))
805 de_fault (to_remove_exec_catchpoint
,
806 (int (*) (struct target_ops
*, int))
808 de_fault (to_set_syscall_catchpoint
,
809 (int (*) (struct target_ops
*, int, int, int, int, int *))
811 de_fault (to_has_exited
,
812 (int (*) (struct target_ops
*, int, int, int *))
814 de_fault (to_can_run
,
815 (int (*) (struct target_ops
*))
817 de_fault (to_extra_thread_info
,
818 (char *(*) (struct target_ops
*, struct thread_info
*))
820 de_fault (to_thread_name
,
821 (char *(*) (struct target_ops
*, struct thread_info
*))
824 (void (*) (struct target_ops
*, ptid_t
))
826 de_fault (to_pid_to_exec_file
,
827 (char *(*) (struct target_ops
*, int))
829 de_fault (to_thread_architecture
,
830 default_thread_architecture
);
831 current_target
.to_read_description
= NULL
;
832 de_fault (to_get_ada_task_ptid
,
833 (ptid_t (*) (struct target_ops
*, long, long))
834 default_get_ada_task_ptid
);
835 de_fault (to_supports_multi_process
,
836 (int (*) (struct target_ops
*))
838 de_fault (to_supports_enable_disable_tracepoint
,
839 (int (*) (struct target_ops
*))
841 de_fault (to_supports_string_tracing
,
842 (int (*) (struct target_ops
*))
844 de_fault (to_trace_init
,
845 (void (*) (struct target_ops
*))
847 de_fault (to_download_tracepoint
,
848 (void (*) (struct target_ops
*, struct bp_location
*))
850 de_fault (to_can_download_tracepoint
,
851 (int (*) (struct target_ops
*))
853 de_fault (to_download_trace_state_variable
,
854 (void (*) (struct target_ops
*, struct trace_state_variable
*))
856 de_fault (to_enable_tracepoint
,
857 (void (*) (struct target_ops
*, struct bp_location
*))
859 de_fault (to_disable_tracepoint
,
860 (void (*) (struct target_ops
*, struct bp_location
*))
862 de_fault (to_trace_set_readonly_regions
,
863 (void (*) (struct target_ops
*))
865 de_fault (to_trace_start
,
866 (void (*) (struct target_ops
*))
868 de_fault (to_get_trace_status
,
869 (int (*) (struct target_ops
*, struct trace_status
*))
871 de_fault (to_get_tracepoint_status
,
872 (void (*) (struct target_ops
*, struct breakpoint
*,
873 struct uploaded_tp
*))
875 de_fault (to_trace_stop
,
876 (void (*) (struct target_ops
*))
878 de_fault (to_trace_find
,
879 (int (*) (struct target_ops
*,
880 enum trace_find_type
, int, CORE_ADDR
, CORE_ADDR
, int *))
882 de_fault (to_get_trace_state_variable_value
,
883 (int (*) (struct target_ops
*, int, LONGEST
*))
885 de_fault (to_save_trace_data
,
886 (int (*) (struct target_ops
*, const char *))
888 de_fault (to_upload_tracepoints
,
889 (int (*) (struct target_ops
*, struct uploaded_tp
**))
891 de_fault (to_upload_trace_state_variables
,
892 (int (*) (struct target_ops
*, struct uploaded_tsv
**))
894 de_fault (to_get_raw_trace_data
,
895 (LONGEST (*) (struct target_ops
*, gdb_byte
*, ULONGEST
, LONGEST
))
897 de_fault (to_get_min_fast_tracepoint_insn_len
,
898 (int (*) (struct target_ops
*))
900 de_fault (to_set_disconnected_tracing
,
901 (void (*) (struct target_ops
*, int))
903 de_fault (to_set_circular_trace_buffer
,
904 (void (*) (struct target_ops
*, int))
906 de_fault (to_set_trace_buffer_size
,
907 (void (*) (struct target_ops
*, LONGEST
))
909 de_fault (to_set_trace_notes
,
910 (int (*) (struct target_ops
*,
911 const char *, const char *, const char *))
913 de_fault (to_get_tib_address
,
914 (int (*) (struct target_ops
*, ptid_t
, CORE_ADDR
*))
916 de_fault (to_set_permissions
,
917 (void (*) (struct target_ops
*))
919 de_fault (to_static_tracepoint_marker_at
,
920 (int (*) (struct target_ops
*,
921 CORE_ADDR
, struct static_tracepoint_marker
*))
923 de_fault (to_static_tracepoint_markers_by_strid
,
924 (VEC(static_tracepoint_marker_p
) * (*) (struct target_ops
*,
927 de_fault (to_traceframe_info
,
928 (struct traceframe_info
* (*) (struct target_ops
*))
930 de_fault (to_supports_evaluation_of_breakpoint_conditions
,
931 (int (*) (struct target_ops
*))
933 de_fault (to_can_run_breakpoint_commands
,
934 (int (*) (struct target_ops
*))
936 de_fault (to_use_agent
,
937 (int (*) (struct target_ops
*, int))
939 de_fault (to_can_use_agent
,
940 (int (*) (struct target_ops
*))
942 de_fault (to_augmented_libraries_svr4_read
,
943 (int (*) (struct target_ops
*))
945 de_fault (to_execution_direction
, default_execution_direction
);
949 /* Finally, position the target-stack beneath the squashed
950 "current_target". That way code looking for a non-inherited
951 target method can quickly and simply find it. */
952 current_target
.beneath
= target_stack
;
955 setup_target_debug ();
958 /* Push a new target type into the stack of the existing target accessors,
959 possibly superseding some of the existing accessors.
961 Rather than allow an empty stack, we always have the dummy target at
962 the bottom stratum, so we can call the function vectors without
966 push_target (struct target_ops
*t
)
968 struct target_ops
**cur
;
970 /* Check magic number. If wrong, it probably means someone changed
971 the struct definition, but not all the places that initialize one. */
972 if (t
->to_magic
!= OPS_MAGIC
)
974 fprintf_unfiltered (gdb_stderr
,
975 "Magic number of %s target struct wrong\n",
977 internal_error (__FILE__
, __LINE__
,
978 _("failed internal consistency check"));
981 /* Find the proper stratum to install this target in. */
982 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
984 if ((int) (t
->to_stratum
) >= (int) (*cur
)->to_stratum
)
988 /* If there's already targets at this stratum, remove them. */
989 /* FIXME: cagney/2003-10-15: I think this should be popping all
990 targets to CUR, and not just those at this stratum level. */
991 while ((*cur
) != NULL
&& t
->to_stratum
== (*cur
)->to_stratum
)
993 /* There's already something at this stratum level. Close it,
994 and un-hook it from the stack. */
995 struct target_ops
*tmp
= (*cur
);
997 (*cur
) = (*cur
)->beneath
;
1002 /* We have removed all targets in our stratum, now add the new one. */
1003 t
->beneath
= (*cur
);
1006 update_current_target ();
1009 /* Remove a target_ops vector from the stack, wherever it may be.
1010 Return how many times it was removed (0 or 1). */
1013 unpush_target (struct target_ops
*t
)
1015 struct target_ops
**cur
;
1016 struct target_ops
*tmp
;
1018 if (t
->to_stratum
== dummy_stratum
)
1019 internal_error (__FILE__
, __LINE__
,
1020 _("Attempt to unpush the dummy target"));
1022 /* Look for the specified target. Note that we assume that a target
1023 can only occur once in the target stack. */
1025 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1031 /* If we don't find target_ops, quit. Only open targets should be
1036 /* Unchain the target. */
1038 (*cur
) = (*cur
)->beneath
;
1039 tmp
->beneath
= NULL
;
1041 update_current_target ();
1043 /* Finally close the target. Note we do this after unchaining, so
1044 any target method calls from within the target_close
1045 implementation don't end up in T anymore. */
1052 pop_all_targets_above (enum strata above_stratum
)
1054 while ((int) (current_target
.to_stratum
) > (int) above_stratum
)
1056 if (!unpush_target (target_stack
))
1058 fprintf_unfiltered (gdb_stderr
,
1059 "pop_all_targets couldn't find target %s\n",
1060 target_stack
->to_shortname
);
1061 internal_error (__FILE__
, __LINE__
,
1062 _("failed internal consistency check"));
1069 pop_all_targets (void)
1071 pop_all_targets_above (dummy_stratum
);
1074 /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */
1077 target_is_pushed (struct target_ops
*t
)
1079 struct target_ops
**cur
;
1081 /* Check magic number. If wrong, it probably means someone changed
1082 the struct definition, but not all the places that initialize one. */
1083 if (t
->to_magic
!= OPS_MAGIC
)
1085 fprintf_unfiltered (gdb_stderr
,
1086 "Magic number of %s target struct wrong\n",
1088 internal_error (__FILE__
, __LINE__
,
1089 _("failed internal consistency check"));
1092 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1099 /* Using the objfile specified in OBJFILE, find the address for the
1100 current thread's thread-local storage with offset OFFSET. */
1102 target_translate_tls_address (struct objfile
*objfile
, CORE_ADDR offset
)
1104 volatile CORE_ADDR addr
= 0;
1105 struct target_ops
*target
;
1107 for (target
= current_target
.beneath
;
1109 target
= target
->beneath
)
1111 if (target
->to_get_thread_local_address
!= NULL
)
1116 && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ()))
1118 ptid_t ptid
= inferior_ptid
;
1119 volatile struct gdb_exception ex
;
1121 TRY_CATCH (ex
, RETURN_MASK_ALL
)
1125 /* Fetch the load module address for this objfile. */
1126 lm_addr
= gdbarch_fetch_tls_load_module_address (target_gdbarch (),
1128 /* If it's 0, throw the appropriate exception. */
1130 throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR
,
1131 _("TLS load module not found"));
1133 addr
= target
->to_get_thread_local_address (target
, ptid
,
1136 /* If an error occurred, print TLS related messages here. Otherwise,
1137 throw the error to some higher catcher. */
1140 int objfile_is_library
= (objfile
->flags
& OBJF_SHARED
);
1144 case TLS_NO_LIBRARY_SUPPORT_ERROR
:
1145 error (_("Cannot find thread-local variables "
1146 "in this thread library."));
1148 case TLS_LOAD_MODULE_NOT_FOUND_ERROR
:
1149 if (objfile_is_library
)
1150 error (_("Cannot find shared library `%s' in dynamic"
1151 " linker's load module list"), objfile_name (objfile
));
1153 error (_("Cannot find executable file `%s' in dynamic"
1154 " linker's load module list"), objfile_name (objfile
));
1156 case TLS_NOT_ALLOCATED_YET_ERROR
:
1157 if (objfile_is_library
)
1158 error (_("The inferior has not yet allocated storage for"
1159 " thread-local variables in\n"
1160 "the shared library `%s'\n"
1162 objfile_name (objfile
), target_pid_to_str (ptid
));
1164 error (_("The inferior has not yet allocated storage for"
1165 " thread-local variables in\n"
1166 "the executable `%s'\n"
1168 objfile_name (objfile
), target_pid_to_str (ptid
));
1170 case TLS_GENERIC_ERROR
:
1171 if (objfile_is_library
)
1172 error (_("Cannot find thread-local storage for %s, "
1173 "shared library %s:\n%s"),
1174 target_pid_to_str (ptid
),
1175 objfile_name (objfile
), ex
.message
);
1177 error (_("Cannot find thread-local storage for %s, "
1178 "executable file %s:\n%s"),
1179 target_pid_to_str (ptid
),
1180 objfile_name (objfile
), ex
.message
);
1183 throw_exception (ex
);
1188 /* It wouldn't be wrong here to try a gdbarch method, too; finding
1189 TLS is an ABI-specific thing. But we don't do that yet. */
1191 error (_("Cannot find thread-local variables on this target"));
1197 target_xfer_status_to_string (enum target_xfer_status err
)
1199 #define CASE(X) case X: return #X
1202 CASE(TARGET_XFER_E_IO
);
1203 CASE(TARGET_XFER_E_UNAVAILABLE
);
1212 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
1214 /* target_read_string -- read a null terminated string, up to LEN bytes,
1215 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
1216 Set *STRING to a pointer to malloc'd memory containing the data; the caller
1217 is responsible for freeing it. Return the number of bytes successfully
1221 target_read_string (CORE_ADDR memaddr
, char **string
, int len
, int *errnop
)
1223 int tlen
, offset
, i
;
1227 int buffer_allocated
;
1229 unsigned int nbytes_read
= 0;
1231 gdb_assert (string
);
1233 /* Small for testing. */
1234 buffer_allocated
= 4;
1235 buffer
= xmalloc (buffer_allocated
);
1240 tlen
= MIN (len
, 4 - (memaddr
& 3));
1241 offset
= memaddr
& 3;
1243 errcode
= target_read_memory (memaddr
& ~3, buf
, sizeof buf
);
1246 /* The transfer request might have crossed the boundary to an
1247 unallocated region of memory. Retry the transfer, requesting
1251 errcode
= target_read_memory (memaddr
, buf
, 1);
1256 if (bufptr
- buffer
+ tlen
> buffer_allocated
)
1260 bytes
= bufptr
- buffer
;
1261 buffer_allocated
*= 2;
1262 buffer
= xrealloc (buffer
, buffer_allocated
);
1263 bufptr
= buffer
+ bytes
;
1266 for (i
= 0; i
< tlen
; i
++)
1268 *bufptr
++ = buf
[i
+ offset
];
1269 if (buf
[i
+ offset
] == '\000')
1271 nbytes_read
+= i
+ 1;
1278 nbytes_read
+= tlen
;
1287 struct target_section_table
*
1288 target_get_section_table (struct target_ops
*target
)
1290 struct target_ops
*t
;
1293 fprintf_unfiltered (gdb_stdlog
, "target_get_section_table ()\n");
1295 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
1296 if (t
->to_get_section_table
!= NULL
)
1297 return (*t
->to_get_section_table
) (t
);
1302 /* Find a section containing ADDR. */
1304 struct target_section
*
1305 target_section_by_addr (struct target_ops
*target
, CORE_ADDR addr
)
1307 struct target_section_table
*table
= target_get_section_table (target
);
1308 struct target_section
*secp
;
1313 for (secp
= table
->sections
; secp
< table
->sections_end
; secp
++)
1315 if (addr
>= secp
->addr
&& addr
< secp
->endaddr
)
1321 /* Read memory from the live target, even if currently inspecting a
1322 traceframe. The return is the same as that of target_read. */
1324 static enum target_xfer_status
1325 target_read_live_memory (enum target_object object
,
1326 ULONGEST memaddr
, gdb_byte
*myaddr
, ULONGEST len
,
1327 ULONGEST
*xfered_len
)
1329 enum target_xfer_status ret
;
1330 struct cleanup
*cleanup
;
1332 /* Switch momentarily out of tfind mode so to access live memory.
1333 Note that this must not clear global state, such as the frame
1334 cache, which must still remain valid for the previous traceframe.
1335 We may be _building_ the frame cache at this point. */
1336 cleanup
= make_cleanup_restore_traceframe_number ();
1337 set_traceframe_number (-1);
1339 ret
= target_xfer_partial (current_target
.beneath
, object
, NULL
,
1340 myaddr
, NULL
, memaddr
, len
, xfered_len
);
1342 do_cleanups (cleanup
);
1346 /* Using the set of read-only target sections of OPS, read live
1347 read-only memory. Note that the actual reads start from the
1348 top-most target again.
1350 For interface/parameters/return description see target.h,
1353 static enum target_xfer_status
1354 memory_xfer_live_readonly_partial (struct target_ops
*ops
,
1355 enum target_object object
,
1356 gdb_byte
*readbuf
, ULONGEST memaddr
,
1357 ULONGEST len
, ULONGEST
*xfered_len
)
1359 struct target_section
*secp
;
1360 struct target_section_table
*table
;
1362 secp
= target_section_by_addr (ops
, memaddr
);
1364 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1365 secp
->the_bfd_section
)
1368 struct target_section
*p
;
1369 ULONGEST memend
= memaddr
+ len
;
1371 table
= target_get_section_table (ops
);
1373 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
1375 if (memaddr
>= p
->addr
)
1377 if (memend
<= p
->endaddr
)
1379 /* Entire transfer is within this section. */
1380 return target_read_live_memory (object
, memaddr
,
1381 readbuf
, len
, xfered_len
);
1383 else if (memaddr
>= p
->endaddr
)
1385 /* This section ends before the transfer starts. */
1390 /* This section overlaps the transfer. Just do half. */
1391 len
= p
->endaddr
- memaddr
;
1392 return target_read_live_memory (object
, memaddr
,
1393 readbuf
, len
, xfered_len
);
1399 return TARGET_XFER_EOF
;
1402 /* Read memory from more than one valid target. A core file, for
1403 instance, could have some of memory but delegate other bits to
1404 the target below it. So, we must manually try all targets. */
1406 static enum target_xfer_status
1407 raw_memory_xfer_partial (struct target_ops
*ops
, gdb_byte
*readbuf
,
1408 const gdb_byte
*writebuf
, ULONGEST memaddr
, LONGEST len
,
1409 ULONGEST
*xfered_len
)
1411 enum target_xfer_status res
;
1415 res
= ops
->to_xfer_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1416 readbuf
, writebuf
, memaddr
, len
,
1418 if (res
== TARGET_XFER_OK
)
1421 /* Stop if the target reports that the memory is not available. */
1422 if (res
== TARGET_XFER_E_UNAVAILABLE
)
1425 /* We want to continue past core files to executables, but not
1426 past a running target's memory. */
1427 if (ops
->to_has_all_memory (ops
))
1432 while (ops
!= NULL
);
1437 /* Perform a partial memory transfer.
1438 For docs see target.h, to_xfer_partial. */
1440 static enum target_xfer_status
1441 memory_xfer_partial_1 (struct target_ops
*ops
, enum target_object object
,
1442 gdb_byte
*readbuf
, const gdb_byte
*writebuf
, ULONGEST memaddr
,
1443 ULONGEST len
, ULONGEST
*xfered_len
)
1445 enum target_xfer_status res
;
1447 struct mem_region
*region
;
1448 struct inferior
*inf
;
1450 /* For accesses to unmapped overlay sections, read directly from
1451 files. Must do this first, as MEMADDR may need adjustment. */
1452 if (readbuf
!= NULL
&& overlay_debugging
)
1454 struct obj_section
*section
= find_pc_overlay (memaddr
);
1456 if (pc_in_unmapped_range (memaddr
, section
))
1458 struct target_section_table
*table
1459 = target_get_section_table (ops
);
1460 const char *section_name
= section
->the_bfd_section
->name
;
1462 memaddr
= overlay_mapped_address (memaddr
, section
);
1463 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1464 memaddr
, len
, xfered_len
,
1466 table
->sections_end
,
1471 /* Try the executable files, if "trust-readonly-sections" is set. */
1472 if (readbuf
!= NULL
&& trust_readonly
)
1474 struct target_section
*secp
;
1475 struct target_section_table
*table
;
1477 secp
= target_section_by_addr (ops
, memaddr
);
1479 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1480 secp
->the_bfd_section
)
1483 table
= target_get_section_table (ops
);
1484 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1485 memaddr
, len
, xfered_len
,
1487 table
->sections_end
,
1492 /* If reading unavailable memory in the context of traceframes, and
1493 this address falls within a read-only section, fallback to
1494 reading from live memory. */
1495 if (readbuf
!= NULL
&& get_traceframe_number () != -1)
1497 VEC(mem_range_s
) *available
;
1499 /* If we fail to get the set of available memory, then the
1500 target does not support querying traceframe info, and so we
1501 attempt reading from the traceframe anyway (assuming the
1502 target implements the old QTro packet then). */
1503 if (traceframe_available_memory (&available
, memaddr
, len
))
1505 struct cleanup
*old_chain
;
1507 old_chain
= make_cleanup (VEC_cleanup(mem_range_s
), &available
);
1509 if (VEC_empty (mem_range_s
, available
)
1510 || VEC_index (mem_range_s
, available
, 0)->start
!= memaddr
)
1512 /* Don't read into the traceframe's available
1514 if (!VEC_empty (mem_range_s
, available
))
1516 LONGEST oldlen
= len
;
1518 len
= VEC_index (mem_range_s
, available
, 0)->start
- memaddr
;
1519 gdb_assert (len
<= oldlen
);
1522 do_cleanups (old_chain
);
1524 /* This goes through the topmost target again. */
1525 res
= memory_xfer_live_readonly_partial (ops
, object
,
1528 if (res
== TARGET_XFER_OK
)
1529 return TARGET_XFER_OK
;
1532 /* No use trying further, we know some memory starting
1533 at MEMADDR isn't available. */
1535 return TARGET_XFER_E_UNAVAILABLE
;
1539 /* Don't try to read more than how much is available, in
1540 case the target implements the deprecated QTro packet to
1541 cater for older GDBs (the target's knowledge of read-only
1542 sections may be outdated by now). */
1543 len
= VEC_index (mem_range_s
, available
, 0)->length
;
1545 do_cleanups (old_chain
);
1549 /* Try GDB's internal data cache. */
1550 region
= lookup_mem_region (memaddr
);
1551 /* region->hi == 0 means there's no upper bound. */
1552 if (memaddr
+ len
< region
->hi
|| region
->hi
== 0)
1555 reg_len
= region
->hi
- memaddr
;
1557 switch (region
->attrib
.mode
)
1560 if (writebuf
!= NULL
)
1561 return TARGET_XFER_E_IO
;
1565 if (readbuf
!= NULL
)
1566 return TARGET_XFER_E_IO
;
1570 /* We only support writing to flash during "load" for now. */
1571 if (writebuf
!= NULL
)
1572 error (_("Writing to flash memory forbidden in this context"));
1576 return TARGET_XFER_E_IO
;
1579 if (!ptid_equal (inferior_ptid
, null_ptid
))
1580 inf
= find_inferior_pid (ptid_get_pid (inferior_ptid
));
1585 /* The dcache reads whole cache lines; that doesn't play well
1586 with reading from a trace buffer, because reading outside of
1587 the collected memory range fails. */
1588 && get_traceframe_number () == -1
1589 && (region
->attrib
.cache
1590 || (stack_cache_enabled_p () && object
== TARGET_OBJECT_STACK_MEMORY
)
1591 || (code_cache_enabled_p () && object
== TARGET_OBJECT_CODE_MEMORY
)))
1593 DCACHE
*dcache
= target_dcache_get_or_init ();
1596 if (readbuf
!= NULL
)
1597 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, readbuf
, reg_len
, 0);
1599 /* FIXME drow/2006-08-09: If we're going to preserve const
1600 correctness dcache_xfer_memory should take readbuf and
1602 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, (void *) writebuf
,
1605 return TARGET_XFER_E_IO
;
1608 *xfered_len
= (ULONGEST
) l
;
1609 return TARGET_XFER_OK
;
1613 /* If none of those methods found the memory we wanted, fall back
1614 to a target partial transfer. Normally a single call to
1615 to_xfer_partial is enough; if it doesn't recognize an object
1616 it will call the to_xfer_partial of the next target down.
1617 But for memory this won't do. Memory is the only target
1618 object which can be read from more than one valid target.
1619 A core file, for instance, could have some of memory but
1620 delegate other bits to the target below it. So, we must
1621 manually try all targets. */
1623 res
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, memaddr
, reg_len
,
1626 /* Make sure the cache gets updated no matter what - if we are writing
1627 to the stack. Even if this write is not tagged as such, we still need
1628 to update the cache. */
1630 if (res
== TARGET_XFER_OK
1633 && target_dcache_init_p ()
1634 && !region
->attrib
.cache
1635 && ((stack_cache_enabled_p () && object
!= TARGET_OBJECT_STACK_MEMORY
)
1636 || (code_cache_enabled_p () && object
!= TARGET_OBJECT_CODE_MEMORY
)))
1638 DCACHE
*dcache
= target_dcache_get ();
1640 dcache_update (dcache
, memaddr
, (void *) writebuf
, reg_len
);
1643 /* If we still haven't got anything, return the last error. We
1648 /* Perform a partial memory transfer. For docs see target.h,
1651 static enum target_xfer_status
1652 memory_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1653 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1654 ULONGEST memaddr
, ULONGEST len
, ULONGEST
*xfered_len
)
1656 enum target_xfer_status res
;
1658 /* Zero length requests are ok and require no work. */
1660 return TARGET_XFER_EOF
;
1662 /* Fill in READBUF with breakpoint shadows, or WRITEBUF with
1663 breakpoint insns, thus hiding out from higher layers whether
1664 there are software breakpoints inserted in the code stream. */
1665 if (readbuf
!= NULL
)
1667 res
= memory_xfer_partial_1 (ops
, object
, readbuf
, NULL
, memaddr
, len
,
1670 if (res
== TARGET_XFER_OK
&& !show_memory_breakpoints
)
1671 breakpoint_xfer_memory (readbuf
, NULL
, NULL
, memaddr
, res
);
1676 struct cleanup
*old_chain
;
1678 /* A large write request is likely to be partially satisfied
1679 by memory_xfer_partial_1. We will continually malloc
1680 and free a copy of the entire write request for breakpoint
1681 shadow handling even though we only end up writing a small
1682 subset of it. Cap writes to 4KB to mitigate this. */
1683 len
= min (4096, len
);
1685 buf
= xmalloc (len
);
1686 old_chain
= make_cleanup (xfree
, buf
);
1687 memcpy (buf
, writebuf
, len
);
1689 breakpoint_xfer_memory (NULL
, buf
, writebuf
, memaddr
, len
);
1690 res
= memory_xfer_partial_1 (ops
, object
, NULL
, buf
, memaddr
, len
,
1693 do_cleanups (old_chain
);
1700 restore_show_memory_breakpoints (void *arg
)
1702 show_memory_breakpoints
= (uintptr_t) arg
;
1706 make_show_memory_breakpoints_cleanup (int show
)
1708 int current
= show_memory_breakpoints
;
1710 show_memory_breakpoints
= show
;
1711 return make_cleanup (restore_show_memory_breakpoints
,
1712 (void *) (uintptr_t) current
);
1715 /* For docs see target.h, to_xfer_partial. */
1717 enum target_xfer_status
1718 target_xfer_partial (struct target_ops
*ops
,
1719 enum target_object object
, const char *annex
,
1720 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1721 ULONGEST offset
, ULONGEST len
,
1722 ULONGEST
*xfered_len
)
1724 enum target_xfer_status retval
;
1726 gdb_assert (ops
->to_xfer_partial
!= NULL
);
1728 /* Transfer is done when LEN is zero. */
1730 return TARGET_XFER_EOF
;
1732 if (writebuf
&& !may_write_memory
)
1733 error (_("Writing to memory is not allowed (addr %s, len %s)"),
1734 core_addr_to_string_nz (offset
), plongest (len
));
1738 /* If this is a memory transfer, let the memory-specific code
1739 have a look at it instead. Memory transfers are more
1741 if (object
== TARGET_OBJECT_MEMORY
|| object
== TARGET_OBJECT_STACK_MEMORY
1742 || object
== TARGET_OBJECT_CODE_MEMORY
)
1743 retval
= memory_xfer_partial (ops
, object
, readbuf
,
1744 writebuf
, offset
, len
, xfered_len
);
1745 else if (object
== TARGET_OBJECT_RAW_MEMORY
)
1747 /* Request the normal memory object from other layers. */
1748 retval
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, offset
, len
,
1752 retval
= ops
->to_xfer_partial (ops
, object
, annex
, readbuf
,
1753 writebuf
, offset
, len
, xfered_len
);
1757 const unsigned char *myaddr
= NULL
;
1759 fprintf_unfiltered (gdb_stdlog
,
1760 "%s:target_xfer_partial "
1761 "(%d, %s, %s, %s, %s, %s) = %d, %s",
1764 (annex
? annex
: "(null)"),
1765 host_address_to_string (readbuf
),
1766 host_address_to_string (writebuf
),
1767 core_addr_to_string_nz (offset
),
1768 pulongest (len
), retval
,
1769 pulongest (*xfered_len
));
1775 if (retval
== TARGET_XFER_OK
&& myaddr
!= NULL
)
1779 fputs_unfiltered (", bytes =", gdb_stdlog
);
1780 for (i
= 0; i
< *xfered_len
; i
++)
1782 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
1784 if (targetdebug
< 2 && i
> 0)
1786 fprintf_unfiltered (gdb_stdlog
, " ...");
1789 fprintf_unfiltered (gdb_stdlog
, "\n");
1792 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
1796 fputc_unfiltered ('\n', gdb_stdlog
);
1799 /* Check implementations of to_xfer_partial update *XFERED_LEN
1800 properly. Do assertion after printing debug messages, so that we
1801 can find more clues on assertion failure from debugging messages. */
1802 if (retval
== TARGET_XFER_OK
|| retval
== TARGET_XFER_E_UNAVAILABLE
)
1803 gdb_assert (*xfered_len
> 0);
1808 /* Read LEN bytes of target memory at address MEMADDR, placing the
1809 results in GDB's memory at MYADDR. Returns either 0 for success or
1810 TARGET_XFER_E_IO if any error occurs.
1812 If an error occurs, no guarantee is made about the contents of the data at
1813 MYADDR. In particular, the caller should not depend upon partial reads
1814 filling the buffer with good data. There is no way for the caller to know
1815 how much good data might have been transfered anyway. Callers that can
1816 deal with partial reads should call target_read (which will retry until
1817 it makes no progress, and then return how much was transferred). */
1820 target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1822 /* Dispatch to the topmost target, not the flattened current_target.
1823 Memory accesses check target->to_has_(all_)memory, and the
1824 flattened target doesn't inherit those. */
1825 if (target_read (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1826 myaddr
, memaddr
, len
) == len
)
1829 return TARGET_XFER_E_IO
;
1832 /* Like target_read_memory, but specify explicitly that this is a read
1833 from the target's raw memory. That is, this read bypasses the
1834 dcache, breakpoint shadowing, etc. */
1837 target_read_raw_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1839 /* See comment in target_read_memory about why the request starts at
1840 current_target.beneath. */
1841 if (target_read (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1842 myaddr
, memaddr
, len
) == len
)
1845 return TARGET_XFER_E_IO
;
1848 /* Like target_read_memory, but specify explicitly that this is a read from
1849 the target's stack. This may trigger different cache behavior. */
1852 target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1854 /* See comment in target_read_memory about why the request starts at
1855 current_target.beneath. */
1856 if (target_read (current_target
.beneath
, TARGET_OBJECT_STACK_MEMORY
, NULL
,
1857 myaddr
, memaddr
, len
) == len
)
1860 return TARGET_XFER_E_IO
;
1863 /* Like target_read_memory, but specify explicitly that this is a read from
1864 the target's code. This may trigger different cache behavior. */
1867 target_read_code (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1869 /* See comment in target_read_memory about why the request starts at
1870 current_target.beneath. */
1871 if (target_read (current_target
.beneath
, TARGET_OBJECT_CODE_MEMORY
, NULL
,
1872 myaddr
, memaddr
, len
) == len
)
1875 return TARGET_XFER_E_IO
;
1878 /* Write LEN bytes from MYADDR to target memory at address MEMADDR.
1879 Returns either 0 for success or TARGET_XFER_E_IO if any
1880 error occurs. If an error occurs, no guarantee is made about how
1881 much data got written. Callers that can deal with partial writes
1882 should call target_write. */
1885 target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1887 /* See comment in target_read_memory about why the request starts at
1888 current_target.beneath. */
1889 if (target_write (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1890 myaddr
, memaddr
, len
) == len
)
1893 return TARGET_XFER_E_IO
;
1896 /* Write LEN bytes from MYADDR to target raw memory at address
1897 MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO
1898 if any error occurs. If an error occurs, no guarantee is made
1899 about how much data got written. Callers that can deal with
1900 partial writes should call target_write. */
1903 target_write_raw_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1905 /* See comment in target_read_memory about why the request starts at
1906 current_target.beneath. */
1907 if (target_write (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1908 myaddr
, memaddr
, len
) == len
)
1911 return TARGET_XFER_E_IO
;
1914 /* Fetch the target's memory map. */
1917 target_memory_map (void)
1919 VEC(mem_region_s
) *result
;
1920 struct mem_region
*last_one
, *this_one
;
1922 struct target_ops
*t
;
1925 fprintf_unfiltered (gdb_stdlog
, "target_memory_map ()\n");
1927 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1928 if (t
->to_memory_map
!= NULL
)
1934 result
= t
->to_memory_map (t
);
1938 qsort (VEC_address (mem_region_s
, result
),
1939 VEC_length (mem_region_s
, result
),
1940 sizeof (struct mem_region
), mem_region_cmp
);
1942 /* Check that regions do not overlap. Simultaneously assign
1943 a numbering for the "mem" commands to use to refer to
1946 for (ix
= 0; VEC_iterate (mem_region_s
, result
, ix
, this_one
); ix
++)
1948 this_one
->number
= ix
;
1950 if (last_one
&& last_one
->hi
> this_one
->lo
)
1952 warning (_("Overlapping regions in memory map: ignoring"));
1953 VEC_free (mem_region_s
, result
);
1956 last_one
= this_one
;
1963 target_flash_erase (ULONGEST address
, LONGEST length
)
1965 struct target_ops
*t
;
1967 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1968 if (t
->to_flash_erase
!= NULL
)
1971 fprintf_unfiltered (gdb_stdlog
, "target_flash_erase (%s, %s)\n",
1972 hex_string (address
), phex (length
, 0));
1973 t
->to_flash_erase (t
, address
, length
);
1981 target_flash_done (void)
1983 struct target_ops
*t
;
1985 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1986 if (t
->to_flash_done
!= NULL
)
1989 fprintf_unfiltered (gdb_stdlog
, "target_flash_done\n");
1990 t
->to_flash_done (t
);
1998 show_trust_readonly (struct ui_file
*file
, int from_tty
,
1999 struct cmd_list_element
*c
, const char *value
)
2001 fprintf_filtered (file
,
2002 _("Mode for reading from readonly sections is %s.\n"),
2006 /* More generic transfers. */
2008 static enum target_xfer_status
2009 default_xfer_partial (struct target_ops
*ops
, enum target_object object
,
2010 const char *annex
, gdb_byte
*readbuf
,
2011 const gdb_byte
*writebuf
, ULONGEST offset
, ULONGEST len
,
2012 ULONGEST
*xfered_len
)
2014 if (object
== TARGET_OBJECT_MEMORY
2015 && ops
->deprecated_xfer_memory
!= NULL
)
2016 /* If available, fall back to the target's
2017 "deprecated_xfer_memory" method. */
2022 if (writebuf
!= NULL
)
2024 void *buffer
= xmalloc (len
);
2025 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
2027 memcpy (buffer
, writebuf
, len
);
2028 xfered
= ops
->deprecated_xfer_memory (offset
, buffer
, len
,
2029 1/*write*/, NULL
, ops
);
2030 do_cleanups (cleanup
);
2032 if (readbuf
!= NULL
)
2033 xfered
= ops
->deprecated_xfer_memory (offset
, readbuf
, len
,
2034 0/*read*/, NULL
, ops
);
2037 *xfered_len
= (ULONGEST
) xfered
;
2038 return TARGET_XFER_E_IO
;
2040 else if (xfered
== 0 && errno
== 0)
2041 /* "deprecated_xfer_memory" uses 0, cross checked against
2042 ERRNO as one indication of an error. */
2043 return TARGET_XFER_EOF
;
2045 return TARGET_XFER_E_IO
;
2049 gdb_assert (ops
->beneath
!= NULL
);
2050 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
2051 readbuf
, writebuf
, offset
, len
,
2056 /* Target vector read/write partial wrapper functions. */
2058 static enum target_xfer_status
2059 target_read_partial (struct target_ops
*ops
,
2060 enum target_object object
,
2061 const char *annex
, gdb_byte
*buf
,
2062 ULONGEST offset
, ULONGEST len
,
2063 ULONGEST
*xfered_len
)
2065 return target_xfer_partial (ops
, object
, annex
, buf
, NULL
, offset
, len
,
2069 static enum target_xfer_status
2070 target_write_partial (struct target_ops
*ops
,
2071 enum target_object object
,
2072 const char *annex
, const gdb_byte
*buf
,
2073 ULONGEST offset
, LONGEST len
, ULONGEST
*xfered_len
)
2075 return target_xfer_partial (ops
, object
, annex
, NULL
, buf
, offset
, len
,
2079 /* Wrappers to perform the full transfer. */
2081 /* For docs on target_read see target.h. */
2084 target_read (struct target_ops
*ops
,
2085 enum target_object object
,
2086 const char *annex
, gdb_byte
*buf
,
2087 ULONGEST offset
, LONGEST len
)
2091 while (xfered
< len
)
2093 ULONGEST xfered_len
;
2094 enum target_xfer_status status
;
2096 status
= target_read_partial (ops
, object
, annex
,
2097 (gdb_byte
*) buf
+ xfered
,
2098 offset
+ xfered
, len
- xfered
,
2101 /* Call an observer, notifying them of the xfer progress? */
2102 if (status
== TARGET_XFER_EOF
)
2104 else if (status
== TARGET_XFER_OK
)
2106 xfered
+= xfered_len
;
2116 /* Assuming that the entire [begin, end) range of memory cannot be
2117 read, try to read whatever subrange is possible to read.
2119 The function returns, in RESULT, either zero or one memory block.
2120 If there's a readable subrange at the beginning, it is completely
2121 read and returned. Any further readable subrange will not be read.
2122 Otherwise, if there's a readable subrange at the end, it will be
2123 completely read and returned. Any readable subranges before it
2124 (obviously, not starting at the beginning), will be ignored. In
2125 other cases -- either no readable subrange, or readable subrange(s)
2126 that is neither at the beginning, or end, nothing is returned.
2128 The purpose of this function is to handle a read across a boundary
2129 of accessible memory in a case when memory map is not available.
2130 The above restrictions are fine for this case, but will give
2131 incorrect results if the memory is 'patchy'. However, supporting
2132 'patchy' memory would require trying to read every single byte,
2133 and it seems unacceptable solution. Explicit memory map is
2134 recommended for this case -- and target_read_memory_robust will
2135 take care of reading multiple ranges then. */
2138 read_whatever_is_readable (struct target_ops
*ops
,
2139 ULONGEST begin
, ULONGEST end
,
2140 VEC(memory_read_result_s
) **result
)
2142 gdb_byte
*buf
= xmalloc (end
- begin
);
2143 ULONGEST current_begin
= begin
;
2144 ULONGEST current_end
= end
;
2146 memory_read_result_s r
;
2147 ULONGEST xfered_len
;
2149 /* If we previously failed to read 1 byte, nothing can be done here. */
2150 if (end
- begin
<= 1)
2156 /* Check that either first or the last byte is readable, and give up
2157 if not. This heuristic is meant to permit reading accessible memory
2158 at the boundary of accessible region. */
2159 if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2160 buf
, begin
, 1, &xfered_len
) == TARGET_XFER_OK
)
2165 else if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2166 buf
+ (end
-begin
) - 1, end
- 1, 1,
2167 &xfered_len
) == TARGET_XFER_OK
)
2178 /* Loop invariant is that the [current_begin, current_end) was previously
2179 found to be not readable as a whole.
2181 Note loop condition -- if the range has 1 byte, we can't divide the range
2182 so there's no point trying further. */
2183 while (current_end
- current_begin
> 1)
2185 ULONGEST first_half_begin
, first_half_end
;
2186 ULONGEST second_half_begin
, second_half_end
;
2188 ULONGEST middle
= current_begin
+ (current_end
- current_begin
)/2;
2192 first_half_begin
= current_begin
;
2193 first_half_end
= middle
;
2194 second_half_begin
= middle
;
2195 second_half_end
= current_end
;
2199 first_half_begin
= middle
;
2200 first_half_end
= current_end
;
2201 second_half_begin
= current_begin
;
2202 second_half_end
= middle
;
2205 xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2206 buf
+ (first_half_begin
- begin
),
2208 first_half_end
- first_half_begin
);
2210 if (xfer
== first_half_end
- first_half_begin
)
2212 /* This half reads up fine. So, the error must be in the
2214 current_begin
= second_half_begin
;
2215 current_end
= second_half_end
;
2219 /* This half is not readable. Because we've tried one byte, we
2220 know some part of this half if actually redable. Go to the next
2221 iteration to divide again and try to read.
2223 We don't handle the other half, because this function only tries
2224 to read a single readable subrange. */
2225 current_begin
= first_half_begin
;
2226 current_end
= first_half_end
;
2232 /* The [begin, current_begin) range has been read. */
2234 r
.end
= current_begin
;
2239 /* The [current_end, end) range has been read. */
2240 LONGEST rlen
= end
- current_end
;
2242 r
.data
= xmalloc (rlen
);
2243 memcpy (r
.data
, buf
+ current_end
- begin
, rlen
);
2244 r
.begin
= current_end
;
2248 VEC_safe_push(memory_read_result_s
, (*result
), &r
);
2252 free_memory_read_result_vector (void *x
)
2254 VEC(memory_read_result_s
) *v
= x
;
2255 memory_read_result_s
*current
;
2258 for (ix
= 0; VEC_iterate (memory_read_result_s
, v
, ix
, current
); ++ix
)
2260 xfree (current
->data
);
2262 VEC_free (memory_read_result_s
, v
);
2265 VEC(memory_read_result_s
) *
2266 read_memory_robust (struct target_ops
*ops
, ULONGEST offset
, LONGEST len
)
2268 VEC(memory_read_result_s
) *result
= 0;
2271 while (xfered
< len
)
2273 struct mem_region
*region
= lookup_mem_region (offset
+ xfered
);
2276 /* If there is no explicit region, a fake one should be created. */
2277 gdb_assert (region
);
2279 if (region
->hi
== 0)
2280 rlen
= len
- xfered
;
2282 rlen
= region
->hi
- offset
;
2284 if (region
->attrib
.mode
== MEM_NONE
|| region
->attrib
.mode
== MEM_WO
)
2286 /* Cannot read this region. Note that we can end up here only
2287 if the region is explicitly marked inaccessible, or
2288 'inaccessible-by-default' is in effect. */
2293 LONGEST to_read
= min (len
- xfered
, rlen
);
2294 gdb_byte
*buffer
= (gdb_byte
*)xmalloc (to_read
);
2296 LONGEST xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2297 (gdb_byte
*) buffer
,
2298 offset
+ xfered
, to_read
);
2299 /* Call an observer, notifying them of the xfer progress? */
2302 /* Got an error reading full chunk. See if maybe we can read
2305 read_whatever_is_readable (ops
, offset
+ xfered
,
2306 offset
+ xfered
+ to_read
, &result
);
2311 struct memory_read_result r
;
2313 r
.begin
= offset
+ xfered
;
2314 r
.end
= r
.begin
+ xfer
;
2315 VEC_safe_push (memory_read_result_s
, result
, &r
);
2325 /* An alternative to target_write with progress callbacks. */
2328 target_write_with_progress (struct target_ops
*ops
,
2329 enum target_object object
,
2330 const char *annex
, const gdb_byte
*buf
,
2331 ULONGEST offset
, LONGEST len
,
2332 void (*progress
) (ULONGEST
, void *), void *baton
)
2336 /* Give the progress callback a chance to set up. */
2338 (*progress
) (0, baton
);
2340 while (xfered
< len
)
2342 ULONGEST xfered_len
;
2343 enum target_xfer_status status
;
2345 status
= target_write_partial (ops
, object
, annex
,
2346 (gdb_byte
*) buf
+ xfered
,
2347 offset
+ xfered
, len
- xfered
,
2350 if (status
== TARGET_XFER_EOF
)
2352 if (TARGET_XFER_STATUS_ERROR_P (status
))
2355 gdb_assert (status
== TARGET_XFER_OK
);
2357 (*progress
) (xfered_len
, baton
);
2359 xfered
+= xfered_len
;
2365 /* For docs on target_write see target.h. */
2368 target_write (struct target_ops
*ops
,
2369 enum target_object object
,
2370 const char *annex
, const gdb_byte
*buf
,
2371 ULONGEST offset
, LONGEST len
)
2373 return target_write_with_progress (ops
, object
, annex
, buf
, offset
, len
,
2377 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2378 the size of the transferred data. PADDING additional bytes are
2379 available in *BUF_P. This is a helper function for
2380 target_read_alloc; see the declaration of that function for more
2384 target_read_alloc_1 (struct target_ops
*ops
, enum target_object object
,
2385 const char *annex
, gdb_byte
**buf_p
, int padding
)
2387 size_t buf_alloc
, buf_pos
;
2390 /* This function does not have a length parameter; it reads the
2391 entire OBJECT). Also, it doesn't support objects fetched partly
2392 from one target and partly from another (in a different stratum,
2393 e.g. a core file and an executable). Both reasons make it
2394 unsuitable for reading memory. */
2395 gdb_assert (object
!= TARGET_OBJECT_MEMORY
);
2397 /* Start by reading up to 4K at a time. The target will throttle
2398 this number down if necessary. */
2400 buf
= xmalloc (buf_alloc
);
2404 ULONGEST xfered_len
;
2405 enum target_xfer_status status
;
2407 status
= target_read_partial (ops
, object
, annex
, &buf
[buf_pos
],
2408 buf_pos
, buf_alloc
- buf_pos
- padding
,
2411 if (status
== TARGET_XFER_EOF
)
2413 /* Read all there was. */
2420 else if (status
!= TARGET_XFER_OK
)
2422 /* An error occurred. */
2424 return TARGET_XFER_E_IO
;
2427 buf_pos
+= xfered_len
;
2429 /* If the buffer is filling up, expand it. */
2430 if (buf_alloc
< buf_pos
* 2)
2433 buf
= xrealloc (buf
, buf_alloc
);
2440 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2441 the size of the transferred data. See the declaration in "target.h"
2442 function for more information about the return value. */
2445 target_read_alloc (struct target_ops
*ops
, enum target_object object
,
2446 const char *annex
, gdb_byte
**buf_p
)
2448 return target_read_alloc_1 (ops
, object
, annex
, buf_p
, 0);
2451 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
2452 returned as a string, allocated using xmalloc. If an error occurs
2453 or the transfer is unsupported, NULL is returned. Empty objects
2454 are returned as allocated but empty strings. A warning is issued
2455 if the result contains any embedded NUL bytes. */
2458 target_read_stralloc (struct target_ops
*ops
, enum target_object object
,
2463 LONGEST i
, transferred
;
2465 transferred
= target_read_alloc_1 (ops
, object
, annex
, &buffer
, 1);
2466 bufstr
= (char *) buffer
;
2468 if (transferred
< 0)
2471 if (transferred
== 0)
2472 return xstrdup ("");
2474 bufstr
[transferred
] = 0;
2476 /* Check for embedded NUL bytes; but allow trailing NULs. */
2477 for (i
= strlen (bufstr
); i
< transferred
; i
++)
2480 warning (_("target object %d, annex %s, "
2481 "contained unexpected null characters"),
2482 (int) object
, annex
? annex
: "(none)");
2489 /* Memory transfer methods. */
2492 get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
, gdb_byte
*buf
,
2495 /* This method is used to read from an alternate, non-current
2496 target. This read must bypass the overlay support (as symbols
2497 don't match this target), and GDB's internal cache (wrong cache
2498 for this target). */
2499 if (target_read (ops
, TARGET_OBJECT_RAW_MEMORY
, NULL
, buf
, addr
, len
)
2501 memory_error (TARGET_XFER_E_IO
, addr
);
2505 get_target_memory_unsigned (struct target_ops
*ops
, CORE_ADDR addr
,
2506 int len
, enum bfd_endian byte_order
)
2508 gdb_byte buf
[sizeof (ULONGEST
)];
2510 gdb_assert (len
<= sizeof (buf
));
2511 get_target_memory (ops
, addr
, buf
, len
);
2512 return extract_unsigned_integer (buf
, len
, byte_order
);
2518 target_insert_breakpoint (struct gdbarch
*gdbarch
,
2519 struct bp_target_info
*bp_tgt
)
2521 if (!may_insert_breakpoints
)
2523 warning (_("May not insert breakpoints"));
2527 return current_target
.to_insert_breakpoint (¤t_target
,
2534 target_remove_breakpoint (struct gdbarch
*gdbarch
,
2535 struct bp_target_info
*bp_tgt
)
2537 /* This is kind of a weird case to handle, but the permission might
2538 have been changed after breakpoints were inserted - in which case
2539 we should just take the user literally and assume that any
2540 breakpoints should be left in place. */
2541 if (!may_insert_breakpoints
)
2543 warning (_("May not remove breakpoints"));
2547 return current_target
.to_remove_breakpoint (¤t_target
,
2552 target_info (char *args
, int from_tty
)
2554 struct target_ops
*t
;
2555 int has_all_mem
= 0;
2557 if (symfile_objfile
!= NULL
)
2558 printf_unfiltered (_("Symbols from \"%s\".\n"),
2559 objfile_name (symfile_objfile
));
2561 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2563 if (!(*t
->to_has_memory
) (t
))
2566 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
2569 printf_unfiltered (_("\tWhile running this, "
2570 "GDB does not access memory from...\n"));
2571 printf_unfiltered ("%s:\n", t
->to_longname
);
2572 (t
->to_files_info
) (t
);
2573 has_all_mem
= (*t
->to_has_all_memory
) (t
);
2577 /* This function is called before any new inferior is created, e.g.
2578 by running a program, attaching, or connecting to a target.
2579 It cleans up any state from previous invocations which might
2580 change between runs. This is a subset of what target_preopen
2581 resets (things which might change between targets). */
2584 target_pre_inferior (int from_tty
)
2586 /* Clear out solib state. Otherwise the solib state of the previous
2587 inferior might have survived and is entirely wrong for the new
2588 target. This has been observed on GNU/Linux using glibc 2.3. How
2600 Cannot access memory at address 0xdeadbeef
2603 /* In some OSs, the shared library list is the same/global/shared
2604 across inferiors. If code is shared between processes, so are
2605 memory regions and features. */
2606 if (!gdbarch_has_global_solist (target_gdbarch ()))
2608 no_shared_libraries (NULL
, from_tty
);
2610 invalidate_target_mem_regions ();
2612 target_clear_description ();
2615 agent_capability_invalidate ();
2618 /* Callback for iterate_over_inferiors. Gets rid of the given
2622 dispose_inferior (struct inferior
*inf
, void *args
)
2624 struct thread_info
*thread
;
2626 thread
= any_thread_of_process (inf
->pid
);
2629 switch_to_thread (thread
->ptid
);
2631 /* Core inferiors actually should be detached, not killed. */
2632 if (target_has_execution
)
2635 target_detach (NULL
, 0);
2641 /* This is to be called by the open routine before it does
2645 target_preopen (int from_tty
)
2649 if (have_inferiors ())
2652 || !have_live_inferiors ()
2653 || query (_("A program is being debugged already. Kill it? ")))
2654 iterate_over_inferiors (dispose_inferior
, NULL
);
2656 error (_("Program not killed."));
2659 /* Calling target_kill may remove the target from the stack. But if
2660 it doesn't (which seems like a win for UDI), remove it now. */
2661 /* Leave the exec target, though. The user may be switching from a
2662 live process to a core of the same program. */
2663 pop_all_targets_above (file_stratum
);
2665 target_pre_inferior (from_tty
);
2668 /* Detach a target after doing deferred register stores. */
2671 target_detach (const char *args
, int from_tty
)
2673 struct target_ops
* t
;
2675 if (gdbarch_has_global_breakpoints (target_gdbarch ()))
2676 /* Don't remove global breakpoints here. They're removed on
2677 disconnection from the target. */
2680 /* If we're in breakpoints-always-inserted mode, have to remove
2681 them before detaching. */
2682 remove_breakpoints_pid (ptid_get_pid (inferior_ptid
));
2684 prepare_for_detach ();
2686 current_target
.to_detach (¤t_target
, args
, from_tty
);
2688 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n",
2693 target_disconnect (char *args
, int from_tty
)
2695 struct target_ops
*t
;
2697 /* If we're in breakpoints-always-inserted mode or if breakpoints
2698 are global across processes, we have to remove them before
2700 remove_breakpoints ();
2702 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2703 if (t
->to_disconnect
!= NULL
)
2706 fprintf_unfiltered (gdb_stdlog
, "target_disconnect (%s, %d)\n",
2708 t
->to_disconnect (t
, args
, from_tty
);
2716 target_wait (ptid_t ptid
, struct target_waitstatus
*status
, int options
)
2718 struct target_ops
*t
;
2719 ptid_t retval
= (current_target
.to_wait
) (¤t_target
, ptid
,
2724 char *status_string
;
2725 char *options_string
;
2727 status_string
= target_waitstatus_to_string (status
);
2728 options_string
= target_options_to_string (options
);
2729 fprintf_unfiltered (gdb_stdlog
,
2730 "target_wait (%d, status, options={%s})"
2732 ptid_get_pid (ptid
), options_string
,
2733 ptid_get_pid (retval
), status_string
);
2734 xfree (status_string
);
2735 xfree (options_string
);
2742 target_pid_to_str (ptid_t ptid
)
2744 struct target_ops
*t
;
2746 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2748 if (t
->to_pid_to_str
!= NULL
)
2749 return (*t
->to_pid_to_str
) (t
, ptid
);
2752 return normal_pid_to_str (ptid
);
2756 target_thread_name (struct thread_info
*info
)
2758 struct target_ops
*t
;
2760 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2762 if (t
->to_thread_name
!= NULL
)
2763 return (*t
->to_thread_name
) (t
, info
);
2770 target_resume (ptid_t ptid
, int step
, enum gdb_signal signal
)
2772 struct target_ops
*t
;
2774 target_dcache_invalidate ();
2776 current_target
.to_resume (¤t_target
, ptid
, step
, signal
);
2778 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n",
2779 ptid_get_pid (ptid
),
2780 step
? "step" : "continue",
2781 gdb_signal_to_name (signal
));
2783 registers_changed_ptid (ptid
);
2784 set_executing (ptid
, 1);
2785 set_running (ptid
, 1);
2786 clear_inline_frame_state (ptid
);
2790 target_pass_signals (int numsigs
, unsigned char *pass_signals
)
2792 struct target_ops
*t
;
2794 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2796 if (t
->to_pass_signals
!= NULL
)
2802 fprintf_unfiltered (gdb_stdlog
, "target_pass_signals (%d, {",
2805 for (i
= 0; i
< numsigs
; i
++)
2806 if (pass_signals
[i
])
2807 fprintf_unfiltered (gdb_stdlog
, " %s",
2808 gdb_signal_to_name (i
));
2810 fprintf_unfiltered (gdb_stdlog
, " })\n");
2813 (*t
->to_pass_signals
) (t
, numsigs
, pass_signals
);
2820 target_program_signals (int numsigs
, unsigned char *program_signals
)
2822 struct target_ops
*t
;
2824 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2826 if (t
->to_program_signals
!= NULL
)
2832 fprintf_unfiltered (gdb_stdlog
, "target_program_signals (%d, {",
2835 for (i
= 0; i
< numsigs
; i
++)
2836 if (program_signals
[i
])
2837 fprintf_unfiltered (gdb_stdlog
, " %s",
2838 gdb_signal_to_name (i
));
2840 fprintf_unfiltered (gdb_stdlog
, " })\n");
2843 (*t
->to_program_signals
) (t
, numsigs
, program_signals
);
2849 /* Look through the list of possible targets for a target that can
2853 target_follow_fork (int follow_child
, int detach_fork
)
2855 struct target_ops
*t
;
2857 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2859 if (t
->to_follow_fork
!= NULL
)
2861 int retval
= t
->to_follow_fork (t
, follow_child
, detach_fork
);
2864 fprintf_unfiltered (gdb_stdlog
,
2865 "target_follow_fork (%d, %d) = %d\n",
2866 follow_child
, detach_fork
, retval
);
2871 /* Some target returned a fork event, but did not know how to follow it. */
2872 internal_error (__FILE__
, __LINE__
,
2873 _("could not find a target to follow fork"));
2877 target_mourn_inferior (void)
2879 struct target_ops
*t
;
2881 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2883 if (t
->to_mourn_inferior
!= NULL
)
2885 t
->to_mourn_inferior (t
);
2887 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2889 /* We no longer need to keep handles on any of the object files.
2890 Make sure to release them to avoid unnecessarily locking any
2891 of them while we're not actually debugging. */
2892 bfd_cache_close_all ();
2898 internal_error (__FILE__
, __LINE__
,
2899 _("could not find a target to follow mourn inferior"));
2902 /* Look for a target which can describe architectural features, starting
2903 from TARGET. If we find one, return its description. */
2905 const struct target_desc
*
2906 target_read_description (struct target_ops
*target
)
2908 struct target_ops
*t
;
2910 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
2911 if (t
->to_read_description
!= NULL
)
2913 const struct target_desc
*tdesc
;
2915 tdesc
= t
->to_read_description (t
);
2923 /* The default implementation of to_search_memory.
2924 This implements a basic search of memory, reading target memory and
2925 performing the search here (as opposed to performing the search in on the
2926 target side with, for example, gdbserver). */
2929 simple_search_memory (struct target_ops
*ops
,
2930 CORE_ADDR start_addr
, ULONGEST search_space_len
,
2931 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2932 CORE_ADDR
*found_addrp
)
2934 /* NOTE: also defined in find.c testcase. */
2935 #define SEARCH_CHUNK_SIZE 16000
2936 const unsigned chunk_size
= SEARCH_CHUNK_SIZE
;
2937 /* Buffer to hold memory contents for searching. */
2938 gdb_byte
*search_buf
;
2939 unsigned search_buf_size
;
2940 struct cleanup
*old_cleanups
;
2942 search_buf_size
= chunk_size
+ pattern_len
- 1;
2944 /* No point in trying to allocate a buffer larger than the search space. */
2945 if (search_space_len
< search_buf_size
)
2946 search_buf_size
= search_space_len
;
2948 search_buf
= malloc (search_buf_size
);
2949 if (search_buf
== NULL
)
2950 error (_("Unable to allocate memory to perform the search."));
2951 old_cleanups
= make_cleanup (free_current_contents
, &search_buf
);
2953 /* Prime the search buffer. */
2955 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2956 search_buf
, start_addr
, search_buf_size
) != search_buf_size
)
2958 warning (_("Unable to access %s bytes of target "
2959 "memory at %s, halting search."),
2960 pulongest (search_buf_size
), hex_string (start_addr
));
2961 do_cleanups (old_cleanups
);
2965 /* Perform the search.
2967 The loop is kept simple by allocating [N + pattern-length - 1] bytes.
2968 When we've scanned N bytes we copy the trailing bytes to the start and
2969 read in another N bytes. */
2971 while (search_space_len
>= pattern_len
)
2973 gdb_byte
*found_ptr
;
2974 unsigned nr_search_bytes
= min (search_space_len
, search_buf_size
);
2976 found_ptr
= memmem (search_buf
, nr_search_bytes
,
2977 pattern
, pattern_len
);
2979 if (found_ptr
!= NULL
)
2981 CORE_ADDR found_addr
= start_addr
+ (found_ptr
- search_buf
);
2983 *found_addrp
= found_addr
;
2984 do_cleanups (old_cleanups
);
2988 /* Not found in this chunk, skip to next chunk. */
2990 /* Don't let search_space_len wrap here, it's unsigned. */
2991 if (search_space_len
>= chunk_size
)
2992 search_space_len
-= chunk_size
;
2994 search_space_len
= 0;
2996 if (search_space_len
>= pattern_len
)
2998 unsigned keep_len
= search_buf_size
- chunk_size
;
2999 CORE_ADDR read_addr
= start_addr
+ chunk_size
+ keep_len
;
3002 /* Copy the trailing part of the previous iteration to the front
3003 of the buffer for the next iteration. */
3004 gdb_assert (keep_len
== pattern_len
- 1);
3005 memcpy (search_buf
, search_buf
+ chunk_size
, keep_len
);
3007 nr_to_read
= min (search_space_len
- keep_len
, chunk_size
);
3009 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
3010 search_buf
+ keep_len
, read_addr
,
3011 nr_to_read
) != nr_to_read
)
3013 warning (_("Unable to access %s bytes of target "
3014 "memory at %s, halting search."),
3015 plongest (nr_to_read
),
3016 hex_string (read_addr
));
3017 do_cleanups (old_cleanups
);
3021 start_addr
+= chunk_size
;
3027 do_cleanups (old_cleanups
);
3031 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
3032 sequence of bytes in PATTERN with length PATTERN_LEN.
3034 The result is 1 if found, 0 if not found, and -1 if there was an error
3035 requiring halting of the search (e.g. memory read error).
3036 If the pattern is found the address is recorded in FOUND_ADDRP. */
3039 target_search_memory (CORE_ADDR start_addr
, ULONGEST search_space_len
,
3040 const gdb_byte
*pattern
, ULONGEST pattern_len
,
3041 CORE_ADDR
*found_addrp
)
3043 struct target_ops
*t
;
3046 /* We don't use INHERIT to set current_target.to_search_memory,
3047 so we have to scan the target stack and handle targetdebug
3051 fprintf_unfiltered (gdb_stdlog
, "target_search_memory (%s, ...)\n",
3052 hex_string (start_addr
));
3054 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3055 if (t
->to_search_memory
!= NULL
)
3060 found
= t
->to_search_memory (t
, start_addr
, search_space_len
,
3061 pattern
, pattern_len
, found_addrp
);
3065 /* If a special version of to_search_memory isn't available, use the
3067 found
= simple_search_memory (current_target
.beneath
,
3068 start_addr
, search_space_len
,
3069 pattern
, pattern_len
, found_addrp
);
3073 fprintf_unfiltered (gdb_stdlog
, " = %d\n", found
);
3078 /* Look through the currently pushed targets. If none of them will
3079 be able to restart the currently running process, issue an error
3083 target_require_runnable (void)
3085 struct target_ops
*t
;
3087 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
3089 /* If this target knows how to create a new program, then
3090 assume we will still be able to after killing the current
3091 one. Either killing and mourning will not pop T, or else
3092 find_default_run_target will find it again. */
3093 if (t
->to_create_inferior
!= NULL
)
3096 /* Do not worry about thread_stratum targets that can not
3097 create inferiors. Assume they will be pushed again if
3098 necessary, and continue to the process_stratum. */
3099 if (t
->to_stratum
== thread_stratum
3100 || t
->to_stratum
== arch_stratum
)
3103 error (_("The \"%s\" target does not support \"run\". "
3104 "Try \"help target\" or \"continue\"."),
3108 /* This function is only called if the target is running. In that
3109 case there should have been a process_stratum target and it
3110 should either know how to create inferiors, or not... */
3111 internal_error (__FILE__
, __LINE__
, _("No targets found"));
3114 /* Look through the list of possible targets for a target that can
3115 execute a run or attach command without any other data. This is
3116 used to locate the default process stratum.
3118 If DO_MESG is not NULL, the result is always valid (error() is
3119 called for errors); else, return NULL on error. */
3121 static struct target_ops
*
3122 find_default_run_target (char *do_mesg
)
3124 struct target_ops
**t
;
3125 struct target_ops
*runable
= NULL
;
3130 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
3133 if ((*t
)->to_can_run
&& target_can_run (*t
))
3143 error (_("Don't know how to %s. Try \"help target\"."), do_mesg
);
3152 find_default_attach (struct target_ops
*ops
, char *args
, int from_tty
)
3154 struct target_ops
*t
;
3156 t
= find_default_run_target ("attach");
3157 (t
->to_attach
) (t
, args
, from_tty
);
3162 find_default_create_inferior (struct target_ops
*ops
,
3163 char *exec_file
, char *allargs
, char **env
,
3166 struct target_ops
*t
;
3168 t
= find_default_run_target ("run");
3169 (t
->to_create_inferior
) (t
, exec_file
, allargs
, env
, from_tty
);
3174 find_default_can_async_p (struct target_ops
*ignore
)
3176 struct target_ops
*t
;
3178 /* This may be called before the target is pushed on the stack;
3179 look for the default process stratum. If there's none, gdb isn't
3180 configured with a native debugger, and target remote isn't
3182 t
= find_default_run_target (NULL
);
3183 if (t
&& t
->to_can_async_p
!= delegate_can_async_p
)
3184 return (t
->to_can_async_p
) (t
);
3189 find_default_is_async_p (struct target_ops
*ignore
)
3191 struct target_ops
*t
;
3193 /* This may be called before the target is pushed on the stack;
3194 look for the default process stratum. If there's none, gdb isn't
3195 configured with a native debugger, and target remote isn't
3197 t
= find_default_run_target (NULL
);
3198 if (t
&& t
->to_is_async_p
!= delegate_is_async_p
)
3199 return (t
->to_is_async_p
) (t
);
3204 find_default_supports_non_stop (struct target_ops
*self
)
3206 struct target_ops
*t
;
3208 t
= find_default_run_target (NULL
);
3209 if (t
&& t
->to_supports_non_stop
)
3210 return (t
->to_supports_non_stop
) (t
);
3215 target_supports_non_stop (void)
3217 struct target_ops
*t
;
3219 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3220 if (t
->to_supports_non_stop
)
3221 return t
->to_supports_non_stop (t
);
3226 /* Implement the "info proc" command. */
3229 target_info_proc (char *args
, enum info_proc_what what
)
3231 struct target_ops
*t
;
3233 /* If we're already connected to something that can get us OS
3234 related data, use it. Otherwise, try using the native
3236 if (current_target
.to_stratum
>= process_stratum
)
3237 t
= current_target
.beneath
;
3239 t
= find_default_run_target (NULL
);
3241 for (; t
!= NULL
; t
= t
->beneath
)
3243 if (t
->to_info_proc
!= NULL
)
3245 t
->to_info_proc (t
, args
, what
);
3248 fprintf_unfiltered (gdb_stdlog
,
3249 "target_info_proc (\"%s\", %d)\n", args
, what
);
3259 find_default_supports_disable_randomization (struct target_ops
*self
)
3261 struct target_ops
*t
;
3263 t
= find_default_run_target (NULL
);
3264 if (t
&& t
->to_supports_disable_randomization
)
3265 return (t
->to_supports_disable_randomization
) (t
);
3270 target_supports_disable_randomization (void)
3272 struct target_ops
*t
;
3274 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3275 if (t
->to_supports_disable_randomization
)
3276 return t
->to_supports_disable_randomization (t
);
3282 target_get_osdata (const char *type
)
3284 struct target_ops
*t
;
3286 /* If we're already connected to something that can get us OS
3287 related data, use it. Otherwise, try using the native
3289 if (current_target
.to_stratum
>= process_stratum
)
3290 t
= current_target
.beneath
;
3292 t
= find_default_run_target ("get OS data");
3297 return target_read_stralloc (t
, TARGET_OBJECT_OSDATA
, type
);
3300 /* Determine the current address space of thread PTID. */
3302 struct address_space
*
3303 target_thread_address_space (ptid_t ptid
)
3305 struct address_space
*aspace
;
3306 struct inferior
*inf
;
3307 struct target_ops
*t
;
3309 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3311 if (t
->to_thread_address_space
!= NULL
)
3313 aspace
= t
->to_thread_address_space (t
, ptid
);
3314 gdb_assert (aspace
);
3317 fprintf_unfiltered (gdb_stdlog
,
3318 "target_thread_address_space (%s) = %d\n",
3319 target_pid_to_str (ptid
),
3320 address_space_num (aspace
));
3325 /* Fall-back to the "main" address space of the inferior. */
3326 inf
= find_inferior_pid (ptid_get_pid (ptid
));
3328 if (inf
== NULL
|| inf
->aspace
== NULL
)
3329 internal_error (__FILE__
, __LINE__
,
3330 _("Can't determine the current "
3331 "address space of thread %s\n"),
3332 target_pid_to_str (ptid
));
3338 /* Target file operations. */
3340 static struct target_ops
*
3341 default_fileio_target (void)
3343 /* If we're already connected to something that can perform
3344 file I/O, use it. Otherwise, try using the native target. */
3345 if (current_target
.to_stratum
>= process_stratum
)
3346 return current_target
.beneath
;
3348 return find_default_run_target ("file I/O");
3351 /* Open FILENAME on the target, using FLAGS and MODE. Return a
3352 target file descriptor, or -1 if an error occurs (and set
3355 target_fileio_open (const char *filename
, int flags
, int mode
,
3358 struct target_ops
*t
;
3360 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3362 if (t
->to_fileio_open
!= NULL
)
3364 int fd
= t
->to_fileio_open (t
, filename
, flags
, mode
, target_errno
);
3367 fprintf_unfiltered (gdb_stdlog
,
3368 "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n",
3369 filename
, flags
, mode
,
3370 fd
, fd
!= -1 ? 0 : *target_errno
);
3375 *target_errno
= FILEIO_ENOSYS
;
3379 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
3380 Return the number of bytes written, or -1 if an error occurs
3381 (and set *TARGET_ERRNO). */
3383 target_fileio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
3384 ULONGEST offset
, int *target_errno
)
3386 struct target_ops
*t
;
3388 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3390 if (t
->to_fileio_pwrite
!= NULL
)
3392 int ret
= t
->to_fileio_pwrite (t
, fd
, write_buf
, len
, offset
,
3396 fprintf_unfiltered (gdb_stdlog
,
3397 "target_fileio_pwrite (%d,...,%d,%s) "
3399 fd
, len
, pulongest (offset
),
3400 ret
, ret
!= -1 ? 0 : *target_errno
);
3405 *target_errno
= FILEIO_ENOSYS
;
3409 /* Read up to LEN bytes FD on the target into READ_BUF.
3410 Return the number of bytes read, or -1 if an error occurs
3411 (and set *TARGET_ERRNO). */
3413 target_fileio_pread (int fd
, gdb_byte
*read_buf
, int len
,
3414 ULONGEST offset
, int *target_errno
)
3416 struct target_ops
*t
;
3418 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3420 if (t
->to_fileio_pread
!= NULL
)
3422 int ret
= t
->to_fileio_pread (t
, fd
, read_buf
, len
, offset
,
3426 fprintf_unfiltered (gdb_stdlog
,
3427 "target_fileio_pread (%d,...,%d,%s) "
3429 fd
, len
, pulongest (offset
),
3430 ret
, ret
!= -1 ? 0 : *target_errno
);
3435 *target_errno
= FILEIO_ENOSYS
;
3439 /* Close FD on the target. Return 0, or -1 if an error occurs
3440 (and set *TARGET_ERRNO). */
3442 target_fileio_close (int fd
, int *target_errno
)
3444 struct target_ops
*t
;
3446 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3448 if (t
->to_fileio_close
!= NULL
)
3450 int ret
= t
->to_fileio_close (t
, fd
, target_errno
);
3453 fprintf_unfiltered (gdb_stdlog
,
3454 "target_fileio_close (%d) = %d (%d)\n",
3455 fd
, ret
, ret
!= -1 ? 0 : *target_errno
);
3460 *target_errno
= FILEIO_ENOSYS
;
3464 /* Unlink FILENAME on the target. Return 0, or -1 if an error
3465 occurs (and set *TARGET_ERRNO). */
3467 target_fileio_unlink (const char *filename
, int *target_errno
)
3469 struct target_ops
*t
;
3471 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3473 if (t
->to_fileio_unlink
!= NULL
)
3475 int ret
= t
->to_fileio_unlink (t
, filename
, target_errno
);
3478 fprintf_unfiltered (gdb_stdlog
,
3479 "target_fileio_unlink (%s) = %d (%d)\n",
3480 filename
, ret
, ret
!= -1 ? 0 : *target_errno
);
3485 *target_errno
= FILEIO_ENOSYS
;
3489 /* Read value of symbolic link FILENAME on the target. Return a
3490 null-terminated string allocated via xmalloc, or NULL if an error
3491 occurs (and set *TARGET_ERRNO). */
3493 target_fileio_readlink (const char *filename
, int *target_errno
)
3495 struct target_ops
*t
;
3497 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3499 if (t
->to_fileio_readlink
!= NULL
)
3501 char *ret
= t
->to_fileio_readlink (t
, filename
, target_errno
);
3504 fprintf_unfiltered (gdb_stdlog
,
3505 "target_fileio_readlink (%s) = %s (%d)\n",
3506 filename
, ret
? ret
: "(nil)",
3507 ret
? 0 : *target_errno
);
3512 *target_errno
= FILEIO_ENOSYS
;
3517 target_fileio_close_cleanup (void *opaque
)
3519 int fd
= *(int *) opaque
;
3522 target_fileio_close (fd
, &target_errno
);
3525 /* Read target file FILENAME. Store the result in *BUF_P and
3526 return the size of the transferred data. PADDING additional bytes are
3527 available in *BUF_P. This is a helper function for
3528 target_fileio_read_alloc; see the declaration of that function for more
3532 target_fileio_read_alloc_1 (const char *filename
,
3533 gdb_byte
**buf_p
, int padding
)
3535 struct cleanup
*close_cleanup
;
3536 size_t buf_alloc
, buf_pos
;
3542 fd
= target_fileio_open (filename
, FILEIO_O_RDONLY
, 0700, &target_errno
);
3546 close_cleanup
= make_cleanup (target_fileio_close_cleanup
, &fd
);
3548 /* Start by reading up to 4K at a time. The target will throttle
3549 this number down if necessary. */
3551 buf
= xmalloc (buf_alloc
);
3555 n
= target_fileio_pread (fd
, &buf
[buf_pos
],
3556 buf_alloc
- buf_pos
- padding
, buf_pos
,
3560 /* An error occurred. */
3561 do_cleanups (close_cleanup
);
3567 /* Read all there was. */
3568 do_cleanups (close_cleanup
);
3578 /* If the buffer is filling up, expand it. */
3579 if (buf_alloc
< buf_pos
* 2)
3582 buf
= xrealloc (buf
, buf_alloc
);
3589 /* Read target file FILENAME. Store the result in *BUF_P and return
3590 the size of the transferred data. See the declaration in "target.h"
3591 function for more information about the return value. */
3594 target_fileio_read_alloc (const char *filename
, gdb_byte
**buf_p
)
3596 return target_fileio_read_alloc_1 (filename
, buf_p
, 0);
3599 /* Read target file FILENAME. The result is NUL-terminated and
3600 returned as a string, allocated using xmalloc. If an error occurs
3601 or the transfer is unsupported, NULL is returned. Empty objects
3602 are returned as allocated but empty strings. A warning is issued
3603 if the result contains any embedded NUL bytes. */
3606 target_fileio_read_stralloc (const char *filename
)
3610 LONGEST i
, transferred
;
3612 transferred
= target_fileio_read_alloc_1 (filename
, &buffer
, 1);
3613 bufstr
= (char *) buffer
;
3615 if (transferred
< 0)
3618 if (transferred
== 0)
3619 return xstrdup ("");
3621 bufstr
[transferred
] = 0;
3623 /* Check for embedded NUL bytes; but allow trailing NULs. */
3624 for (i
= strlen (bufstr
); i
< transferred
; i
++)
3627 warning (_("target file %s "
3628 "contained unexpected null characters"),
3638 default_region_ok_for_hw_watchpoint (struct target_ops
*self
,
3639 CORE_ADDR addr
, int len
)
3641 return (len
<= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT
);
3645 default_watchpoint_addr_within_range (struct target_ops
*target
,
3647 CORE_ADDR start
, int length
)
3649 return addr
>= start
&& addr
< start
+ length
;
3652 static struct gdbarch
*
3653 default_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
3655 return target_gdbarch ();
3671 return_minus_one (void)
3683 * Find the next target down the stack from the specified target.
3687 find_target_beneath (struct target_ops
*t
)
3695 find_target_at (enum strata stratum
)
3697 struct target_ops
*t
;
3699 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3700 if (t
->to_stratum
== stratum
)
3707 /* The inferior process has died. Long live the inferior! */
3710 generic_mourn_inferior (void)
3714 ptid
= inferior_ptid
;
3715 inferior_ptid
= null_ptid
;
3717 /* Mark breakpoints uninserted in case something tries to delete a
3718 breakpoint while we delete the inferior's threads (which would
3719 fail, since the inferior is long gone). */
3720 mark_breakpoints_out ();
3722 if (!ptid_equal (ptid
, null_ptid
))
3724 int pid
= ptid_get_pid (ptid
);
3725 exit_inferior (pid
);
3728 /* Note this wipes step-resume breakpoints, so needs to be done
3729 after exit_inferior, which ends up referencing the step-resume
3730 breakpoints through clear_thread_inferior_resources. */
3731 breakpoint_init_inferior (inf_exited
);
3733 registers_changed ();
3735 reopen_exec_file ();
3736 reinit_frame_cache ();
3738 if (deprecated_detach_hook
)
3739 deprecated_detach_hook ();
3742 /* Convert a normal process ID to a string. Returns the string in a
3746 normal_pid_to_str (ptid_t ptid
)
3748 static char buf
[32];
3750 xsnprintf (buf
, sizeof buf
, "process %d", ptid_get_pid (ptid
));
3755 dummy_pid_to_str (struct target_ops
*ops
, ptid_t ptid
)
3757 return normal_pid_to_str (ptid
);
3760 /* Error-catcher for target_find_memory_regions. */
3762 dummy_find_memory_regions (struct target_ops
*self
,
3763 find_memory_region_ftype ignore1
, void *ignore2
)
3765 error (_("Command not implemented for this target."));
3769 /* Error-catcher for target_make_corefile_notes. */
3771 dummy_make_corefile_notes (struct target_ops
*self
,
3772 bfd
*ignore1
, int *ignore2
)
3774 error (_("Command not implemented for this target."));
3778 /* Error-catcher for target_get_bookmark. */
3780 dummy_get_bookmark (struct target_ops
*self
, char *ignore1
, int ignore2
)
3786 /* Error-catcher for target_goto_bookmark. */
3788 dummy_goto_bookmark (struct target_ops
*self
, gdb_byte
*ignore
, int from_tty
)
3793 /* Set up the handful of non-empty slots needed by the dummy target
3797 init_dummy_target (void)
3799 dummy_target
.to_shortname
= "None";
3800 dummy_target
.to_longname
= "None";
3801 dummy_target
.to_doc
= "";
3802 dummy_target
.to_create_inferior
= find_default_create_inferior
;
3803 dummy_target
.to_supports_non_stop
= find_default_supports_non_stop
;
3804 dummy_target
.to_supports_disable_randomization
3805 = find_default_supports_disable_randomization
;
3806 dummy_target
.to_pid_to_str
= dummy_pid_to_str
;
3807 dummy_target
.to_stratum
= dummy_stratum
;
3808 dummy_target
.to_find_memory_regions
= dummy_find_memory_regions
;
3809 dummy_target
.to_make_corefile_notes
= dummy_make_corefile_notes
;
3810 dummy_target
.to_get_bookmark
= dummy_get_bookmark
;
3811 dummy_target
.to_goto_bookmark
= dummy_goto_bookmark
;
3812 dummy_target
.to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
3813 dummy_target
.to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
3814 dummy_target
.to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
3815 dummy_target
.to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
3816 dummy_target
.to_has_execution
3817 = (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
3818 dummy_target
.to_magic
= OPS_MAGIC
;
3820 install_dummy_methods (&dummy_target
);
3824 debug_to_open (char *args
, int from_tty
)
3826 debug_target
.to_open (args
, from_tty
);
3828 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
3832 target_close (struct target_ops
*targ
)
3834 gdb_assert (!target_is_pushed (targ
));
3836 if (targ
->to_xclose
!= NULL
)
3837 targ
->to_xclose (targ
);
3838 else if (targ
->to_close
!= NULL
)
3839 targ
->to_close (targ
);
3842 fprintf_unfiltered (gdb_stdlog
, "target_close ()\n");
3846 target_attach (char *args
, int from_tty
)
3848 current_target
.to_attach (¤t_target
, args
, from_tty
);
3850 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n",
3855 target_thread_alive (ptid_t ptid
)
3857 struct target_ops
*t
;
3859 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3861 if (t
->to_thread_alive
!= NULL
)
3865 retval
= t
->to_thread_alive (t
, ptid
);
3867 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
3868 ptid_get_pid (ptid
), retval
);
3878 target_find_new_threads (void)
3880 struct target_ops
*t
;
3882 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3884 if (t
->to_find_new_threads
!= NULL
)
3886 t
->to_find_new_threads (t
);
3888 fprintf_unfiltered (gdb_stdlog
, "target_find_new_threads ()\n");
3896 target_stop (ptid_t ptid
)
3900 warning (_("May not interrupt or stop the target, ignoring attempt"));
3904 (*current_target
.to_stop
) (¤t_target
, ptid
);
3908 debug_to_post_attach (struct target_ops
*self
, int pid
)
3910 debug_target
.to_post_attach (&debug_target
, pid
);
3912 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
3915 /* Concatenate ELEM to LIST, a comma separate list, and return the
3916 result. The LIST incoming argument is released. */
3919 str_comma_list_concat_elem (char *list
, const char *elem
)
3922 return xstrdup (elem
);
3924 return reconcat (list
, list
, ", ", elem
, (char *) NULL
);
3927 /* Helper for target_options_to_string. If OPT is present in
3928 TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET.
3929 Returns the new resulting string. OPT is removed from
3933 do_option (int *target_options
, char *ret
,
3934 int opt
, char *opt_str
)
3936 if ((*target_options
& opt
) != 0)
3938 ret
= str_comma_list_concat_elem (ret
, opt_str
);
3939 *target_options
&= ~opt
;
3946 target_options_to_string (int target_options
)
3950 #define DO_TARG_OPTION(OPT) \
3951 ret = do_option (&target_options, ret, OPT, #OPT)
3953 DO_TARG_OPTION (TARGET_WNOHANG
);
3955 if (target_options
!= 0)
3956 ret
= str_comma_list_concat_elem (ret
, "unknown???");
3964 debug_print_register (const char * func
,
3965 struct regcache
*regcache
, int regno
)
3967 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
3969 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
3970 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
)
3971 && gdbarch_register_name (gdbarch
, regno
) != NULL
3972 && gdbarch_register_name (gdbarch
, regno
)[0] != '\0')
3973 fprintf_unfiltered (gdb_stdlog
, "(%s)",
3974 gdbarch_register_name (gdbarch
, regno
));
3976 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
3977 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
))
3979 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
3980 int i
, size
= register_size (gdbarch
, regno
);
3981 gdb_byte buf
[MAX_REGISTER_SIZE
];
3983 regcache_raw_collect (regcache
, regno
, buf
);
3984 fprintf_unfiltered (gdb_stdlog
, " = ");
3985 for (i
= 0; i
< size
; i
++)
3987 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
3989 if (size
<= sizeof (LONGEST
))
3991 ULONGEST val
= extract_unsigned_integer (buf
, size
, byte_order
);
3993 fprintf_unfiltered (gdb_stdlog
, " %s %s",
3994 core_addr_to_string_nz (val
), plongest (val
));
3997 fprintf_unfiltered (gdb_stdlog
, "\n");
4001 target_fetch_registers (struct regcache
*regcache
, int regno
)
4003 struct target_ops
*t
;
4005 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4007 if (t
->to_fetch_registers
!= NULL
)
4009 t
->to_fetch_registers (t
, regcache
, regno
);
4011 debug_print_register ("target_fetch_registers", regcache
, regno
);
4018 target_store_registers (struct regcache
*regcache
, int regno
)
4020 struct target_ops
*t
;
4022 if (!may_write_registers
)
4023 error (_("Writing to registers is not allowed (regno %d)"), regno
);
4025 current_target
.to_store_registers (¤t_target
, regcache
, regno
);
4028 debug_print_register ("target_store_registers", regcache
, regno
);
4033 target_core_of_thread (ptid_t ptid
)
4035 struct target_ops
*t
;
4037 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4039 if (t
->to_core_of_thread
!= NULL
)
4041 int retval
= t
->to_core_of_thread (t
, ptid
);
4044 fprintf_unfiltered (gdb_stdlog
,
4045 "target_core_of_thread (%d) = %d\n",
4046 ptid_get_pid (ptid
), retval
);
4055 target_verify_memory (const gdb_byte
*data
, CORE_ADDR memaddr
, ULONGEST size
)
4057 struct target_ops
*t
;
4059 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4061 if (t
->to_verify_memory
!= NULL
)
4063 int retval
= t
->to_verify_memory (t
, data
, memaddr
, size
);
4066 fprintf_unfiltered (gdb_stdlog
,
4067 "target_verify_memory (%s, %s) = %d\n",
4068 paddress (target_gdbarch (), memaddr
),
4078 /* The documentation for this function is in its prototype declaration in
4082 target_insert_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4084 struct target_ops
*t
;
4086 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4087 if (t
->to_insert_mask_watchpoint
!= NULL
)
4091 ret
= t
->to_insert_mask_watchpoint (t
, addr
, mask
, rw
);
4094 fprintf_unfiltered (gdb_stdlog
, "\
4095 target_insert_mask_watchpoint (%s, %s, %d) = %d\n",
4096 core_addr_to_string (addr
),
4097 core_addr_to_string (mask
), rw
, ret
);
4105 /* The documentation for this function is in its prototype declaration in
4109 target_remove_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4111 struct target_ops
*t
;
4113 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4114 if (t
->to_remove_mask_watchpoint
!= NULL
)
4118 ret
= t
->to_remove_mask_watchpoint (t
, addr
, mask
, rw
);
4121 fprintf_unfiltered (gdb_stdlog
, "\
4122 target_remove_mask_watchpoint (%s, %s, %d) = %d\n",
4123 core_addr_to_string (addr
),
4124 core_addr_to_string (mask
), rw
, ret
);
4132 /* The documentation for this function is in its prototype declaration
4136 target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
)
4138 struct target_ops
*t
;
4140 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4141 if (t
->to_masked_watch_num_registers
!= NULL
)
4142 return t
->to_masked_watch_num_registers (t
, addr
, mask
);
4147 /* The documentation for this function is in its prototype declaration
4151 target_ranged_break_num_registers (void)
4153 struct target_ops
*t
;
4155 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4156 if (t
->to_ranged_break_num_registers
!= NULL
)
4157 return t
->to_ranged_break_num_registers (t
);
4164 struct btrace_target_info
*
4165 target_enable_btrace (ptid_t ptid
)
4167 struct target_ops
*t
;
4169 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4170 if (t
->to_enable_btrace
!= NULL
)
4171 return t
->to_enable_btrace (t
, ptid
);
4180 target_disable_btrace (struct btrace_target_info
*btinfo
)
4182 struct target_ops
*t
;
4184 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4185 if (t
->to_disable_btrace
!= NULL
)
4187 t
->to_disable_btrace (t
, btinfo
);
4197 target_teardown_btrace (struct btrace_target_info
*btinfo
)
4199 struct target_ops
*t
;
4201 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4202 if (t
->to_teardown_btrace
!= NULL
)
4204 t
->to_teardown_btrace (t
, btinfo
);
4214 target_read_btrace (VEC (btrace_block_s
) **btrace
,
4215 struct btrace_target_info
*btinfo
,
4216 enum btrace_read_type type
)
4218 struct target_ops
*t
;
4220 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4221 if (t
->to_read_btrace
!= NULL
)
4222 return t
->to_read_btrace (t
, btrace
, btinfo
, type
);
4225 return BTRACE_ERR_NOT_SUPPORTED
;
4231 target_stop_recording (void)
4233 struct target_ops
*t
;
4235 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4236 if (t
->to_stop_recording
!= NULL
)
4238 t
->to_stop_recording (t
);
4242 /* This is optional. */
4248 target_info_record (void)
4250 struct target_ops
*t
;
4252 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4253 if (t
->to_info_record
!= NULL
)
4255 t
->to_info_record (t
);
4265 target_save_record (const char *filename
)
4267 struct target_ops
*t
;
4269 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4270 if (t
->to_save_record
!= NULL
)
4272 t
->to_save_record (t
, filename
);
4282 target_supports_delete_record (void)
4284 struct target_ops
*t
;
4286 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4287 if (t
->to_delete_record
!= NULL
)
4296 target_delete_record (void)
4298 struct target_ops
*t
;
4300 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4301 if (t
->to_delete_record
!= NULL
)
4303 t
->to_delete_record (t
);
4313 target_record_is_replaying (void)
4315 struct target_ops
*t
;
4317 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4318 if (t
->to_record_is_replaying
!= NULL
)
4319 return t
->to_record_is_replaying (t
);
4327 target_goto_record_begin (void)
4329 struct target_ops
*t
;
4331 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4332 if (t
->to_goto_record_begin
!= NULL
)
4334 t
->to_goto_record_begin (t
);
4344 target_goto_record_end (void)
4346 struct target_ops
*t
;
4348 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4349 if (t
->to_goto_record_end
!= NULL
)
4351 t
->to_goto_record_end (t
);
4361 target_goto_record (ULONGEST insn
)
4363 struct target_ops
*t
;
4365 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4366 if (t
->to_goto_record
!= NULL
)
4368 t
->to_goto_record (t
, insn
);
4378 target_insn_history (int size
, int flags
)
4380 struct target_ops
*t
;
4382 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4383 if (t
->to_insn_history
!= NULL
)
4385 t
->to_insn_history (t
, size
, flags
);
4395 target_insn_history_from (ULONGEST from
, int size
, int flags
)
4397 struct target_ops
*t
;
4399 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4400 if (t
->to_insn_history_from
!= NULL
)
4402 t
->to_insn_history_from (t
, from
, size
, flags
);
4412 target_insn_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4414 struct target_ops
*t
;
4416 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4417 if (t
->to_insn_history_range
!= NULL
)
4419 t
->to_insn_history_range (t
, begin
, end
, flags
);
4429 target_call_history (int size
, int flags
)
4431 struct target_ops
*t
;
4433 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4434 if (t
->to_call_history
!= NULL
)
4436 t
->to_call_history (t
, size
, flags
);
4446 target_call_history_from (ULONGEST begin
, int size
, int flags
)
4448 struct target_ops
*t
;
4450 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4451 if (t
->to_call_history_from
!= NULL
)
4453 t
->to_call_history_from (t
, begin
, size
, flags
);
4463 target_call_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4465 struct target_ops
*t
;
4467 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4468 if (t
->to_call_history_range
!= NULL
)
4470 t
->to_call_history_range (t
, begin
, end
, flags
);
4478 debug_to_prepare_to_store (struct target_ops
*self
, struct regcache
*regcache
)
4480 debug_target
.to_prepare_to_store (&debug_target
, regcache
);
4482 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
4487 const struct frame_unwind
*
4488 target_get_unwinder (void)
4490 struct target_ops
*t
;
4492 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4493 if (t
->to_get_unwinder
!= NULL
)
4494 return t
->to_get_unwinder
;
4501 const struct frame_unwind
*
4502 target_get_tailcall_unwinder (void)
4504 struct target_ops
*t
;
4506 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4507 if (t
->to_get_tailcall_unwinder
!= NULL
)
4508 return t
->to_get_tailcall_unwinder
;
4516 forward_target_decr_pc_after_break (struct target_ops
*ops
,
4517 struct gdbarch
*gdbarch
)
4519 for (; ops
!= NULL
; ops
= ops
->beneath
)
4520 if (ops
->to_decr_pc_after_break
!= NULL
)
4521 return ops
->to_decr_pc_after_break (ops
, gdbarch
);
4523 return gdbarch_decr_pc_after_break (gdbarch
);
4529 target_decr_pc_after_break (struct gdbarch
*gdbarch
)
4531 return forward_target_decr_pc_after_break (current_target
.beneath
, gdbarch
);
4535 deprecated_debug_xfer_memory (CORE_ADDR memaddr
, bfd_byte
*myaddr
, int len
,
4536 int write
, struct mem_attrib
*attrib
,
4537 struct target_ops
*target
)
4541 retval
= debug_target
.deprecated_xfer_memory (memaddr
, myaddr
, len
, write
,
4544 fprintf_unfiltered (gdb_stdlog
,
4545 "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d",
4546 paddress (target_gdbarch (), memaddr
), len
,
4547 write
? "write" : "read", retval
);
4553 fputs_unfiltered (", bytes =", gdb_stdlog
);
4554 for (i
= 0; i
< retval
; i
++)
4556 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
4558 if (targetdebug
< 2 && i
> 0)
4560 fprintf_unfiltered (gdb_stdlog
, " ...");
4563 fprintf_unfiltered (gdb_stdlog
, "\n");
4566 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
4570 fputc_unfiltered ('\n', gdb_stdlog
);
4576 debug_to_files_info (struct target_ops
*target
)
4578 debug_target
.to_files_info (target
);
4580 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
4584 debug_to_insert_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4585 struct bp_target_info
*bp_tgt
)
4589 retval
= debug_target
.to_insert_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4591 fprintf_unfiltered (gdb_stdlog
,
4592 "target_insert_breakpoint (%s, xxx) = %ld\n",
4593 core_addr_to_string (bp_tgt
->placed_address
),
4594 (unsigned long) retval
);
4599 debug_to_remove_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4600 struct bp_target_info
*bp_tgt
)
4604 retval
= debug_target
.to_remove_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4606 fprintf_unfiltered (gdb_stdlog
,
4607 "target_remove_breakpoint (%s, xxx) = %ld\n",
4608 core_addr_to_string (bp_tgt
->placed_address
),
4609 (unsigned long) retval
);
4614 debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
4615 int type
, int cnt
, int from_tty
)
4619 retval
= debug_target
.to_can_use_hw_breakpoint (&debug_target
,
4620 type
, cnt
, from_tty
);
4622 fprintf_unfiltered (gdb_stdlog
,
4623 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
4624 (unsigned long) type
,
4625 (unsigned long) cnt
,
4626 (unsigned long) from_tty
,
4627 (unsigned long) retval
);
4632 debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
4633 CORE_ADDR addr
, int len
)
4637 retval
= debug_target
.to_region_ok_for_hw_watchpoint (&debug_target
,
4640 fprintf_unfiltered (gdb_stdlog
,
4641 "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n",
4642 core_addr_to_string (addr
), (unsigned long) len
,
4643 core_addr_to_string (retval
));
4648 debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
4649 CORE_ADDR addr
, int len
, int rw
,
4650 struct expression
*cond
)
4654 retval
= debug_target
.to_can_accel_watchpoint_condition (&debug_target
,
4658 fprintf_unfiltered (gdb_stdlog
,
4659 "target_can_accel_watchpoint_condition "
4660 "(%s, %d, %d, %s) = %ld\n",
4661 core_addr_to_string (addr
), len
, rw
,
4662 host_address_to_string (cond
), (unsigned long) retval
);
4667 debug_to_stopped_by_watchpoint (struct target_ops
*ops
)
4671 retval
= debug_target
.to_stopped_by_watchpoint (&debug_target
);
4673 fprintf_unfiltered (gdb_stdlog
,
4674 "target_stopped_by_watchpoint () = %ld\n",
4675 (unsigned long) retval
);
4680 debug_to_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr
)
4684 retval
= debug_target
.to_stopped_data_address (target
, addr
);
4686 fprintf_unfiltered (gdb_stdlog
,
4687 "target_stopped_data_address ([%s]) = %ld\n",
4688 core_addr_to_string (*addr
),
4689 (unsigned long)retval
);
4694 debug_to_watchpoint_addr_within_range (struct target_ops
*target
,
4696 CORE_ADDR start
, int length
)
4700 retval
= debug_target
.to_watchpoint_addr_within_range (target
, addr
,
4703 fprintf_filtered (gdb_stdlog
,
4704 "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n",
4705 core_addr_to_string (addr
), core_addr_to_string (start
),
4711 debug_to_insert_hw_breakpoint (struct target_ops
*self
,
4712 struct gdbarch
*gdbarch
,
4713 struct bp_target_info
*bp_tgt
)
4717 retval
= debug_target
.to_insert_hw_breakpoint (&debug_target
,
4720 fprintf_unfiltered (gdb_stdlog
,
4721 "target_insert_hw_breakpoint (%s, xxx) = %ld\n",
4722 core_addr_to_string (bp_tgt
->placed_address
),
4723 (unsigned long) retval
);
4728 debug_to_remove_hw_breakpoint (struct target_ops
*self
,
4729 struct gdbarch
*gdbarch
,
4730 struct bp_target_info
*bp_tgt
)
4734 retval
= debug_target
.to_remove_hw_breakpoint (&debug_target
,
4737 fprintf_unfiltered (gdb_stdlog
,
4738 "target_remove_hw_breakpoint (%s, xxx) = %ld\n",
4739 core_addr_to_string (bp_tgt
->placed_address
),
4740 (unsigned long) retval
);
4745 debug_to_insert_watchpoint (struct target_ops
*self
,
4746 CORE_ADDR addr
, int len
, int type
,
4747 struct expression
*cond
)
4751 retval
= debug_target
.to_insert_watchpoint (&debug_target
,
4752 addr
, len
, type
, cond
);
4754 fprintf_unfiltered (gdb_stdlog
,
4755 "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n",
4756 core_addr_to_string (addr
), len
, type
,
4757 host_address_to_string (cond
), (unsigned long) retval
);
4762 debug_to_remove_watchpoint (struct target_ops
*self
,
4763 CORE_ADDR addr
, int len
, int type
,
4764 struct expression
*cond
)
4768 retval
= debug_target
.to_remove_watchpoint (&debug_target
,
4769 addr
, len
, type
, cond
);
4771 fprintf_unfiltered (gdb_stdlog
,
4772 "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n",
4773 core_addr_to_string (addr
), len
, type
,
4774 host_address_to_string (cond
), (unsigned long) retval
);
4779 debug_to_terminal_init (struct target_ops
*self
)
4781 debug_target
.to_terminal_init (&debug_target
);
4783 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
4787 debug_to_terminal_inferior (struct target_ops
*self
)
4789 debug_target
.to_terminal_inferior (&debug_target
);
4791 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
4795 debug_to_terminal_ours_for_output (struct target_ops
*self
)
4797 debug_target
.to_terminal_ours_for_output (&debug_target
);
4799 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
4803 debug_to_terminal_ours (struct target_ops
*self
)
4805 debug_target
.to_terminal_ours (&debug_target
);
4807 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
4811 debug_to_terminal_save_ours (struct target_ops
*self
)
4813 debug_target
.to_terminal_save_ours (&debug_target
);
4815 fprintf_unfiltered (gdb_stdlog
, "target_terminal_save_ours ()\n");
4819 debug_to_terminal_info (struct target_ops
*self
,
4820 const char *arg
, int from_tty
)
4822 debug_target
.to_terminal_info (&debug_target
, arg
, from_tty
);
4824 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
4829 debug_to_load (struct target_ops
*self
, char *args
, int from_tty
)
4831 debug_target
.to_load (&debug_target
, args
, from_tty
);
4833 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
4837 debug_to_post_startup_inferior (struct target_ops
*self
, ptid_t ptid
)
4839 debug_target
.to_post_startup_inferior (&debug_target
, ptid
);
4841 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
4842 ptid_get_pid (ptid
));
4846 debug_to_insert_fork_catchpoint (struct target_ops
*self
, int pid
)
4850 retval
= debug_target
.to_insert_fork_catchpoint (&debug_target
, pid
);
4852 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d) = %d\n",
4859 debug_to_remove_fork_catchpoint (struct target_ops
*self
, int pid
)
4863 retval
= debug_target
.to_remove_fork_catchpoint (&debug_target
, pid
);
4865 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
4872 debug_to_insert_vfork_catchpoint (struct target_ops
*self
, int pid
)
4876 retval
= debug_target
.to_insert_vfork_catchpoint (&debug_target
, pid
);
4878 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d) = %d\n",
4885 debug_to_remove_vfork_catchpoint (struct target_ops
*self
, int pid
)
4889 retval
= debug_target
.to_remove_vfork_catchpoint (&debug_target
, pid
);
4891 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
4898 debug_to_insert_exec_catchpoint (struct target_ops
*self
, int pid
)
4902 retval
= debug_target
.to_insert_exec_catchpoint (&debug_target
, pid
);
4904 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d) = %d\n",
4911 debug_to_remove_exec_catchpoint (struct target_ops
*self
, int pid
)
4915 retval
= debug_target
.to_remove_exec_catchpoint (&debug_target
, pid
);
4917 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
4924 debug_to_has_exited (struct target_ops
*self
,
4925 int pid
, int wait_status
, int *exit_status
)
4929 has_exited
= debug_target
.to_has_exited (&debug_target
,
4930 pid
, wait_status
, exit_status
);
4932 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
4933 pid
, wait_status
, *exit_status
, has_exited
);
4939 debug_to_can_run (struct target_ops
*self
)
4943 retval
= debug_target
.to_can_run (&debug_target
);
4945 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
4950 static struct gdbarch
*
4951 debug_to_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
4953 struct gdbarch
*retval
;
4955 retval
= debug_target
.to_thread_architecture (ops
, ptid
);
4957 fprintf_unfiltered (gdb_stdlog
,
4958 "target_thread_architecture (%s) = %s [%s]\n",
4959 target_pid_to_str (ptid
),
4960 host_address_to_string (retval
),
4961 gdbarch_bfd_arch_info (retval
)->printable_name
);
4966 debug_to_stop (struct target_ops
*self
, ptid_t ptid
)
4968 debug_target
.to_stop (&debug_target
, ptid
);
4970 fprintf_unfiltered (gdb_stdlog
, "target_stop (%s)\n",
4971 target_pid_to_str (ptid
));
4975 debug_to_rcmd (struct target_ops
*self
, char *command
,
4976 struct ui_file
*outbuf
)
4978 debug_target
.to_rcmd (&debug_target
, command
, outbuf
);
4979 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
4983 debug_to_pid_to_exec_file (struct target_ops
*self
, int pid
)
4987 exec_file
= debug_target
.to_pid_to_exec_file (&debug_target
, pid
);
4989 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
4996 setup_target_debug (void)
4998 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
5000 current_target
.to_open
= debug_to_open
;
5001 current_target
.to_post_attach
= debug_to_post_attach
;
5002 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
5003 current_target
.deprecated_xfer_memory
= deprecated_debug_xfer_memory
;
5004 current_target
.to_files_info
= debug_to_files_info
;
5005 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
5006 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
5007 current_target
.to_can_use_hw_breakpoint
= debug_to_can_use_hw_breakpoint
;
5008 current_target
.to_insert_hw_breakpoint
= debug_to_insert_hw_breakpoint
;
5009 current_target
.to_remove_hw_breakpoint
= debug_to_remove_hw_breakpoint
;
5010 current_target
.to_insert_watchpoint
= debug_to_insert_watchpoint
;
5011 current_target
.to_remove_watchpoint
= debug_to_remove_watchpoint
;
5012 current_target
.to_stopped_by_watchpoint
= debug_to_stopped_by_watchpoint
;
5013 current_target
.to_stopped_data_address
= debug_to_stopped_data_address
;
5014 current_target
.to_watchpoint_addr_within_range
5015 = debug_to_watchpoint_addr_within_range
;
5016 current_target
.to_region_ok_for_hw_watchpoint
5017 = debug_to_region_ok_for_hw_watchpoint
;
5018 current_target
.to_can_accel_watchpoint_condition
5019 = debug_to_can_accel_watchpoint_condition
;
5020 current_target
.to_terminal_init
= debug_to_terminal_init
;
5021 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
5022 current_target
.to_terminal_ours_for_output
5023 = debug_to_terminal_ours_for_output
;
5024 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
5025 current_target
.to_terminal_save_ours
= debug_to_terminal_save_ours
;
5026 current_target
.to_terminal_info
= debug_to_terminal_info
;
5027 current_target
.to_load
= debug_to_load
;
5028 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
5029 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
5030 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
5031 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
5032 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
5033 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
5034 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
5035 current_target
.to_has_exited
= debug_to_has_exited
;
5036 current_target
.to_can_run
= debug_to_can_run
;
5037 current_target
.to_stop
= debug_to_stop
;
5038 current_target
.to_rcmd
= debug_to_rcmd
;
5039 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
5040 current_target
.to_thread_architecture
= debug_to_thread_architecture
;
5044 static char targ_desc
[] =
5045 "Names of targets and files being debugged.\nShows the entire \
5046 stack of targets currently in use (including the exec-file,\n\
5047 core-file, and process, if any), as well as the symbol file name.";
5050 default_rcmd (struct target_ops
*self
, char *command
, struct ui_file
*output
)
5052 error (_("\"monitor\" command not supported by this target."));
5056 do_monitor_command (char *cmd
,
5059 target_rcmd (cmd
, gdb_stdtarg
);
5062 /* Print the name of each layers of our target stack. */
5065 maintenance_print_target_stack (char *cmd
, int from_tty
)
5067 struct target_ops
*t
;
5069 printf_filtered (_("The current target stack is:\n"));
5071 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
5073 printf_filtered (" - %s (%s)\n", t
->to_shortname
, t
->to_longname
);
5077 /* Controls if async mode is permitted. */
5078 int target_async_permitted
= 0;
5080 /* The set command writes to this variable. If the inferior is
5081 executing, target_async_permitted is *not* updated. */
5082 static int target_async_permitted_1
= 0;
5085 set_target_async_command (char *args
, int from_tty
,
5086 struct cmd_list_element
*c
)
5088 if (have_live_inferiors ())
5090 target_async_permitted_1
= target_async_permitted
;
5091 error (_("Cannot change this setting while the inferior is running."));
5094 target_async_permitted
= target_async_permitted_1
;
5098 show_target_async_command (struct ui_file
*file
, int from_tty
,
5099 struct cmd_list_element
*c
,
5102 fprintf_filtered (file
,
5103 _("Controlling the inferior in "
5104 "asynchronous mode is %s.\n"), value
);
5107 /* Temporary copies of permission settings. */
5109 static int may_write_registers_1
= 1;
5110 static int may_write_memory_1
= 1;
5111 static int may_insert_breakpoints_1
= 1;
5112 static int may_insert_tracepoints_1
= 1;
5113 static int may_insert_fast_tracepoints_1
= 1;
5114 static int may_stop_1
= 1;
5116 /* Make the user-set values match the real values again. */
5119 update_target_permissions (void)
5121 may_write_registers_1
= may_write_registers
;
5122 may_write_memory_1
= may_write_memory
;
5123 may_insert_breakpoints_1
= may_insert_breakpoints
;
5124 may_insert_tracepoints_1
= may_insert_tracepoints
;
5125 may_insert_fast_tracepoints_1
= may_insert_fast_tracepoints
;
5126 may_stop_1
= may_stop
;
5129 /* The one function handles (most of) the permission flags in the same
5133 set_target_permissions (char *args
, int from_tty
,
5134 struct cmd_list_element
*c
)
5136 if (target_has_execution
)
5138 update_target_permissions ();
5139 error (_("Cannot change this setting while the inferior is running."));
5142 /* Make the real values match the user-changed values. */
5143 may_write_registers
= may_write_registers_1
;
5144 may_insert_breakpoints
= may_insert_breakpoints_1
;
5145 may_insert_tracepoints
= may_insert_tracepoints_1
;
5146 may_insert_fast_tracepoints
= may_insert_fast_tracepoints_1
;
5147 may_stop
= may_stop_1
;
5148 update_observer_mode ();
5151 /* Set memory write permission independently of observer mode. */
5154 set_write_memory_permission (char *args
, int from_tty
,
5155 struct cmd_list_element
*c
)
5157 /* Make the real values match the user-changed values. */
5158 may_write_memory
= may_write_memory_1
;
5159 update_observer_mode ();
5164 initialize_targets (void)
5166 init_dummy_target ();
5167 push_target (&dummy_target
);
5169 add_info ("target", target_info
, targ_desc
);
5170 add_info ("files", target_info
, targ_desc
);
5172 add_setshow_zuinteger_cmd ("target", class_maintenance
, &targetdebug
, _("\
5173 Set target debugging."), _("\
5174 Show target debugging."), _("\
5175 When non-zero, target debugging is enabled. Higher numbers are more\n\
5176 verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
5180 &setdebuglist
, &showdebuglist
);
5182 add_setshow_boolean_cmd ("trust-readonly-sections", class_support
,
5183 &trust_readonly
, _("\
5184 Set mode for reading from readonly sections."), _("\
5185 Show mode for reading from readonly sections."), _("\
5186 When this mode is on, memory reads from readonly sections (such as .text)\n\
5187 will be read from the object file instead of from the target. This will\n\
5188 result in significant performance improvement for remote targets."),
5190 show_trust_readonly
,
5191 &setlist
, &showlist
);
5193 add_com ("monitor", class_obscure
, do_monitor_command
,
5194 _("Send a command to the remote monitor (remote targets only)."));
5196 add_cmd ("target-stack", class_maintenance
, maintenance_print_target_stack
,
5197 _("Print the name of each layer of the internal target stack."),
5198 &maintenanceprintlist
);
5200 add_setshow_boolean_cmd ("target-async", no_class
,
5201 &target_async_permitted_1
, _("\
5202 Set whether gdb controls the inferior in asynchronous mode."), _("\
5203 Show whether gdb controls the inferior in asynchronous mode."), _("\
5204 Tells gdb whether to control the inferior in asynchronous mode."),
5205 set_target_async_command
,
5206 show_target_async_command
,
5210 add_setshow_boolean_cmd ("may-write-registers", class_support
,
5211 &may_write_registers_1
, _("\
5212 Set permission to write into registers."), _("\
5213 Show permission to write into registers."), _("\
5214 When this permission is on, GDB may write into the target's registers.\n\
5215 Otherwise, any sort of write attempt will result in an error."),
5216 set_target_permissions
, NULL
,
5217 &setlist
, &showlist
);
5219 add_setshow_boolean_cmd ("may-write-memory", class_support
,
5220 &may_write_memory_1
, _("\
5221 Set permission to write into target memory."), _("\
5222 Show permission to write into target memory."), _("\
5223 When this permission is on, GDB may write into the target's memory.\n\
5224 Otherwise, any sort of write attempt will result in an error."),
5225 set_write_memory_permission
, NULL
,
5226 &setlist
, &showlist
);
5228 add_setshow_boolean_cmd ("may-insert-breakpoints", class_support
,
5229 &may_insert_breakpoints_1
, _("\
5230 Set permission to insert breakpoints in the target."), _("\
5231 Show permission to insert breakpoints in the target."), _("\
5232 When this permission is on, GDB may insert breakpoints in the program.\n\
5233 Otherwise, any sort of insertion attempt will result in an error."),
5234 set_target_permissions
, NULL
,
5235 &setlist
, &showlist
);
5237 add_setshow_boolean_cmd ("may-insert-tracepoints", class_support
,
5238 &may_insert_tracepoints_1
, _("\
5239 Set permission to insert tracepoints in the target."), _("\
5240 Show permission to insert tracepoints in the target."), _("\
5241 When this permission is on, GDB may insert tracepoints in the program.\n\
5242 Otherwise, any sort of insertion attempt will result in an error."),
5243 set_target_permissions
, NULL
,
5244 &setlist
, &showlist
);
5246 add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support
,
5247 &may_insert_fast_tracepoints_1
, _("\
5248 Set permission to insert fast tracepoints in the target."), _("\
5249 Show permission to insert fast tracepoints in the target."), _("\
5250 When this permission is on, GDB may insert fast tracepoints.\n\
5251 Otherwise, any sort of insertion attempt will result in an error."),
5252 set_target_permissions
, NULL
,
5253 &setlist
, &showlist
);
5255 add_setshow_boolean_cmd ("may-interrupt", class_support
,
5257 Set permission to interrupt or signal the target."), _("\
5258 Show permission to interrupt or signal the target."), _("\
5259 When this permission is on, GDB may interrupt/stop the target's execution.\n\
5260 Otherwise, any attempt to interrupt or stop will be ignored."),
5261 set_target_permissions
, NULL
,
5262 &setlist
, &showlist
);