1 /* Select target systems and architectures at runtime for GDB.
3 Copyright (C) 1990-2014 Free Software Foundation, Inc.
5 Contributed by Cygnus Support.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "target-dcache.h"
36 #include "gdb_assert.h"
38 #include "exceptions.h"
39 #include "target-descriptions.h"
40 #include "gdbthread.h"
43 #include "inline-frame.h"
44 #include "tracepoint.h"
45 #include "gdb/fileio.h"
48 static void target_info (char *, int);
50 static void default_terminal_info (struct target_ops
*, const char *, int);
52 static int default_watchpoint_addr_within_range (struct target_ops
*,
53 CORE_ADDR
, CORE_ADDR
, int);
55 static int default_region_ok_for_hw_watchpoint (struct target_ops
*,
58 static void tcomplain (void) ATTRIBUTE_NORETURN
;
60 static int nomemory (CORE_ADDR
, char *, int, int, struct target_ops
*);
62 static int return_zero (void);
64 static int return_one (void);
66 static int return_minus_one (void);
68 static void *return_null (void);
70 void target_ignore (void);
72 static void target_command (char *, int);
74 static struct target_ops
*find_default_run_target (char *);
76 static target_xfer_partial_ftype default_xfer_partial
;
78 static struct gdbarch
*default_thread_architecture (struct target_ops
*ops
,
81 static int find_default_can_async_p (struct target_ops
*ignore
);
83 static int find_default_is_async_p (struct target_ops
*ignore
);
85 #include "target-delegates.c"
87 static void init_dummy_target (void);
89 static struct target_ops debug_target
;
91 static void debug_to_open (char *, int);
93 static void debug_to_prepare_to_store (struct target_ops
*self
,
96 static void debug_to_files_info (struct target_ops
*);
98 static int debug_to_insert_breakpoint (struct target_ops
*, struct gdbarch
*,
99 struct bp_target_info
*);
101 static int debug_to_remove_breakpoint (struct target_ops
*, struct gdbarch
*,
102 struct bp_target_info
*);
104 static int debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
107 static int debug_to_insert_hw_breakpoint (struct target_ops
*self
,
109 struct bp_target_info
*);
111 static int debug_to_remove_hw_breakpoint (struct target_ops
*self
,
113 struct bp_target_info
*);
115 static int debug_to_insert_watchpoint (struct target_ops
*self
,
117 struct expression
*);
119 static int debug_to_remove_watchpoint (struct target_ops
*self
,
121 struct expression
*);
123 static int debug_to_stopped_data_address (struct target_ops
*, CORE_ADDR
*);
125 static int debug_to_watchpoint_addr_within_range (struct target_ops
*,
126 CORE_ADDR
, CORE_ADDR
, int);
128 static int debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
131 static int debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
133 struct expression
*);
135 static void debug_to_terminal_init (struct target_ops
*self
);
137 static void debug_to_terminal_inferior (struct target_ops
*self
);
139 static void debug_to_terminal_ours_for_output (struct target_ops
*self
);
141 static void debug_to_terminal_save_ours (struct target_ops
*self
);
143 static void debug_to_terminal_ours (struct target_ops
*self
);
145 static void debug_to_load (struct target_ops
*self
, char *, int);
147 static int debug_to_can_run (void);
149 static void debug_to_stop (ptid_t
);
151 /* Pointer to array of target architecture structures; the size of the
152 array; the current index into the array; the allocated size of the
154 struct target_ops
**target_structs
;
155 unsigned target_struct_size
;
156 unsigned target_struct_allocsize
;
157 #define DEFAULT_ALLOCSIZE 10
159 /* The initial current target, so that there is always a semi-valid
162 static struct target_ops dummy_target
;
164 /* Top of target stack. */
166 static struct target_ops
*target_stack
;
168 /* The target structure we are currently using to talk to a process
169 or file or whatever "inferior" we have. */
171 struct target_ops current_target
;
173 /* Command list for target. */
175 static struct cmd_list_element
*targetlist
= NULL
;
177 /* Nonzero if we should trust readonly sections from the
178 executable when reading memory. */
180 static int trust_readonly
= 0;
182 /* Nonzero if we should show true memory content including
183 memory breakpoint inserted by gdb. */
185 static int show_memory_breakpoints
= 0;
187 /* These globals control whether GDB attempts to perform these
188 operations; they are useful for targets that need to prevent
189 inadvertant disruption, such as in non-stop mode. */
191 int may_write_registers
= 1;
193 int may_write_memory
= 1;
195 int may_insert_breakpoints
= 1;
197 int may_insert_tracepoints
= 1;
199 int may_insert_fast_tracepoints
= 1;
203 /* Non-zero if we want to see trace of target level stuff. */
205 static unsigned int targetdebug
= 0;
207 show_targetdebug (struct ui_file
*file
, int from_tty
,
208 struct cmd_list_element
*c
, const char *value
)
210 fprintf_filtered (file
, _("Target debugging is %s.\n"), value
);
213 static void setup_target_debug (void);
215 /* The user just typed 'target' without the name of a target. */
218 target_command (char *arg
, int from_tty
)
220 fputs_filtered ("Argument required (target name). Try `help target'\n",
224 /* Default target_has_* methods for process_stratum targets. */
227 default_child_has_all_memory (struct target_ops
*ops
)
229 /* If no inferior selected, then we can't read memory here. */
230 if (ptid_equal (inferior_ptid
, null_ptid
))
237 default_child_has_memory (struct target_ops
*ops
)
239 /* If no inferior selected, then we can't read memory here. */
240 if (ptid_equal (inferior_ptid
, null_ptid
))
247 default_child_has_stack (struct target_ops
*ops
)
249 /* If no inferior selected, there's no stack. */
250 if (ptid_equal (inferior_ptid
, null_ptid
))
257 default_child_has_registers (struct target_ops
*ops
)
259 /* Can't read registers from no inferior. */
260 if (ptid_equal (inferior_ptid
, null_ptid
))
267 default_child_has_execution (struct target_ops
*ops
, ptid_t the_ptid
)
269 /* If there's no thread selected, then we can't make it run through
271 if (ptid_equal (the_ptid
, null_ptid
))
279 target_has_all_memory_1 (void)
281 struct target_ops
*t
;
283 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
284 if (t
->to_has_all_memory (t
))
291 target_has_memory_1 (void)
293 struct target_ops
*t
;
295 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
296 if (t
->to_has_memory (t
))
303 target_has_stack_1 (void)
305 struct target_ops
*t
;
307 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
308 if (t
->to_has_stack (t
))
315 target_has_registers_1 (void)
317 struct target_ops
*t
;
319 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
320 if (t
->to_has_registers (t
))
327 target_has_execution_1 (ptid_t the_ptid
)
329 struct target_ops
*t
;
331 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
332 if (t
->to_has_execution (t
, the_ptid
))
339 target_has_execution_current (void)
341 return target_has_execution_1 (inferior_ptid
);
344 /* Complete initialization of T. This ensures that various fields in
345 T are set, if needed by the target implementation. */
348 complete_target_initialization (struct target_ops
*t
)
350 /* Provide default values for all "must have" methods. */
351 if (t
->to_xfer_partial
== NULL
)
352 t
->to_xfer_partial
= default_xfer_partial
;
354 if (t
->to_has_all_memory
== NULL
)
355 t
->to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
357 if (t
->to_has_memory
== NULL
)
358 t
->to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
360 if (t
->to_has_stack
== NULL
)
361 t
->to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
363 if (t
->to_has_registers
== NULL
)
364 t
->to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
366 if (t
->to_has_execution
== NULL
)
367 t
->to_has_execution
= (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
369 install_delegators (t
);
372 /* Add possible target architecture T to the list and add a new
373 command 'target T->to_shortname'. Set COMPLETER as the command's
374 completer if not NULL. */
377 add_target_with_completer (struct target_ops
*t
,
378 completer_ftype
*completer
)
380 struct cmd_list_element
*c
;
382 complete_target_initialization (t
);
386 target_struct_allocsize
= DEFAULT_ALLOCSIZE
;
387 target_structs
= (struct target_ops
**) xmalloc
388 (target_struct_allocsize
* sizeof (*target_structs
));
390 if (target_struct_size
>= target_struct_allocsize
)
392 target_struct_allocsize
*= 2;
393 target_structs
= (struct target_ops
**)
394 xrealloc ((char *) target_structs
,
395 target_struct_allocsize
* sizeof (*target_structs
));
397 target_structs
[target_struct_size
++] = t
;
399 if (targetlist
== NULL
)
400 add_prefix_cmd ("target", class_run
, target_command
, _("\
401 Connect to a target machine or process.\n\
402 The first argument is the type or protocol of the target machine.\n\
403 Remaining arguments are interpreted by the target protocol. For more\n\
404 information on the arguments for a particular protocol, type\n\
405 `help target ' followed by the protocol name."),
406 &targetlist
, "target ", 0, &cmdlist
);
407 c
= add_cmd (t
->to_shortname
, no_class
, t
->to_open
, t
->to_doc
,
409 if (completer
!= NULL
)
410 set_cmd_completer (c
, completer
);
413 /* Add a possible target architecture to the list. */
416 add_target (struct target_ops
*t
)
418 add_target_with_completer (t
, NULL
);
424 add_deprecated_target_alias (struct target_ops
*t
, char *alias
)
426 struct cmd_list_element
*c
;
429 /* If we use add_alias_cmd, here, we do not get the deprecated warning,
431 c
= add_cmd (alias
, no_class
, t
->to_open
, t
->to_doc
, &targetlist
);
432 alt
= xstrprintf ("target %s", t
->to_shortname
);
433 deprecate_cmd (c
, alt
);
446 struct target_ops
*t
;
448 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
449 if (t
->to_kill
!= NULL
)
452 fprintf_unfiltered (gdb_stdlog
, "target_kill ()\n");
462 target_load (char *arg
, int from_tty
)
464 target_dcache_invalidate ();
465 (*current_target
.to_load
) (¤t_target
, arg
, from_tty
);
469 target_create_inferior (char *exec_file
, char *args
,
470 char **env
, int from_tty
)
472 struct target_ops
*t
;
474 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
476 if (t
->to_create_inferior
!= NULL
)
478 t
->to_create_inferior (t
, exec_file
, args
, env
, from_tty
);
480 fprintf_unfiltered (gdb_stdlog
,
481 "target_create_inferior (%s, %s, xxx, %d)\n",
482 exec_file
, args
, from_tty
);
487 internal_error (__FILE__
, __LINE__
,
488 _("could not find a target to create inferior"));
492 target_terminal_inferior (void)
494 /* A background resume (``run&'') should leave GDB in control of the
495 terminal. Use target_can_async_p, not target_is_async_p, since at
496 this point the target is not async yet. However, if sync_execution
497 is not set, we know it will become async prior to resume. */
498 if (target_can_async_p () && !sync_execution
)
501 /* If GDB is resuming the inferior in the foreground, install
502 inferior's terminal modes. */
503 (*current_target
.to_terminal_inferior
) (¤t_target
);
507 nomemory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
,
508 struct target_ops
*t
)
510 errno
= EIO
; /* Can't read/write this location. */
511 return 0; /* No bytes handled. */
517 error (_("You can't do that when your target is `%s'"),
518 current_target
.to_shortname
);
524 error (_("You can't do that without a process to debug."));
528 default_terminal_info (struct target_ops
*self
, const char *args
, int from_tty
)
530 printf_unfiltered (_("No saved terminal information.\n"));
533 /* A default implementation for the to_get_ada_task_ptid target method.
535 This function builds the PTID by using both LWP and TID as part of
536 the PTID lwp and tid elements. The pid used is the pid of the
540 default_get_ada_task_ptid (long lwp
, long tid
)
542 return ptid_build (ptid_get_pid (inferior_ptid
), lwp
, tid
);
545 static enum exec_direction_kind
546 default_execution_direction (void)
548 if (!target_can_execute_reverse
)
550 else if (!target_can_async_p ())
553 gdb_assert_not_reached ("\
554 to_execution_direction must be implemented for reverse async");
557 /* Go through the target stack from top to bottom, copying over zero
558 entries in current_target, then filling in still empty entries. In
559 effect, we are doing class inheritance through the pushed target
562 NOTE: cagney/2003-10-17: The problem with this inheritance, as it
563 is currently implemented, is that it discards any knowledge of
564 which target an inherited method originally belonged to.
565 Consequently, new new target methods should instead explicitly and
566 locally search the target stack for the target that can handle the
570 update_current_target (void)
572 struct target_ops
*t
;
574 /* First, reset current's contents. */
575 memset (¤t_target
, 0, sizeof (current_target
));
577 /* Install the delegators. */
578 install_delegators (¤t_target
);
580 #define INHERIT(FIELD, TARGET) \
581 if (!current_target.FIELD) \
582 current_target.FIELD = (TARGET)->FIELD
584 for (t
= target_stack
; t
; t
= t
->beneath
)
586 INHERIT (to_shortname
, t
);
587 INHERIT (to_longname
, t
);
589 /* Do not inherit to_open. */
590 /* Do not inherit to_close. */
591 /* Do not inherit to_attach. */
592 INHERIT (to_post_attach
, t
);
593 INHERIT (to_attach_no_wait
, t
);
594 /* Do not inherit to_detach. */
595 /* Do not inherit to_disconnect. */
596 /* Do not inherit to_resume. */
597 /* Do not inherit to_wait. */
598 /* Do not inherit to_fetch_registers. */
599 /* Do not inherit to_store_registers. */
600 INHERIT (to_prepare_to_store
, t
);
601 INHERIT (deprecated_xfer_memory
, t
);
602 INHERIT (to_files_info
, t
);
603 /* Do not inherit to_insert_breakpoint. */
604 /* Do not inherit to_remove_breakpoint. */
605 INHERIT (to_can_use_hw_breakpoint
, t
);
606 INHERIT (to_insert_hw_breakpoint
, t
);
607 INHERIT (to_remove_hw_breakpoint
, t
);
608 /* Do not inherit to_ranged_break_num_registers. */
609 INHERIT (to_insert_watchpoint
, t
);
610 INHERIT (to_remove_watchpoint
, t
);
611 /* Do not inherit to_insert_mask_watchpoint. */
612 /* Do not inherit to_remove_mask_watchpoint. */
613 /* Do not inherit to_stopped_data_address. */
614 INHERIT (to_have_steppable_watchpoint
, t
);
615 INHERIT (to_have_continuable_watchpoint
, t
);
616 /* Do not inherit to_stopped_by_watchpoint. */
617 INHERIT (to_watchpoint_addr_within_range
, t
);
618 INHERIT (to_region_ok_for_hw_watchpoint
, t
);
619 INHERIT (to_can_accel_watchpoint_condition
, t
);
620 /* Do not inherit to_masked_watch_num_registers. */
621 INHERIT (to_terminal_init
, t
);
622 INHERIT (to_terminal_inferior
, t
);
623 INHERIT (to_terminal_ours_for_output
, t
);
624 INHERIT (to_terminal_ours
, t
);
625 INHERIT (to_terminal_save_ours
, t
);
626 INHERIT (to_terminal_info
, t
);
627 /* Do not inherit to_kill. */
628 INHERIT (to_load
, t
);
629 /* Do no inherit to_create_inferior. */
630 INHERIT (to_post_startup_inferior
, t
);
631 INHERIT (to_insert_fork_catchpoint
, t
);
632 INHERIT (to_remove_fork_catchpoint
, t
);
633 INHERIT (to_insert_vfork_catchpoint
, t
);
634 INHERIT (to_remove_vfork_catchpoint
, t
);
635 /* Do not inherit to_follow_fork. */
636 INHERIT (to_insert_exec_catchpoint
, t
);
637 INHERIT (to_remove_exec_catchpoint
, t
);
638 INHERIT (to_set_syscall_catchpoint
, t
);
639 INHERIT (to_has_exited
, t
);
640 /* Do not inherit to_mourn_inferior. */
641 INHERIT (to_can_run
, t
);
642 /* Do not inherit to_pass_signals. */
643 /* Do not inherit to_program_signals. */
644 /* Do not inherit to_thread_alive. */
645 /* Do not inherit to_find_new_threads. */
646 /* Do not inherit to_pid_to_str. */
647 INHERIT (to_extra_thread_info
, t
);
648 INHERIT (to_thread_name
, t
);
649 INHERIT (to_stop
, t
);
650 /* Do not inherit to_xfer_partial. */
651 INHERIT (to_rcmd
, t
);
652 INHERIT (to_pid_to_exec_file
, t
);
653 INHERIT (to_log_command
, t
);
654 INHERIT (to_stratum
, t
);
655 /* Do not inherit to_has_all_memory. */
656 /* Do not inherit to_has_memory. */
657 /* Do not inherit to_has_stack. */
658 /* Do not inherit to_has_registers. */
659 /* Do not inherit to_has_execution. */
660 INHERIT (to_has_thread_control
, t
);
661 /* Do not inherit to_can_async_p. */
662 /* Do not inherit to_is_async_p. */
663 /* Do not inherit to_async. */
664 INHERIT (to_find_memory_regions
, t
);
665 INHERIT (to_make_corefile_notes
, t
);
666 INHERIT (to_get_bookmark
, t
);
667 INHERIT (to_goto_bookmark
, t
);
668 /* Do not inherit to_get_thread_local_address. */
669 INHERIT (to_can_execute_reverse
, t
);
670 INHERIT (to_execution_direction
, t
);
671 INHERIT (to_thread_architecture
, t
);
672 /* Do not inherit to_read_description. */
673 INHERIT (to_get_ada_task_ptid
, t
);
674 /* Do not inherit to_search_memory. */
675 INHERIT (to_supports_multi_process
, t
);
676 INHERIT (to_supports_enable_disable_tracepoint
, t
);
677 INHERIT (to_supports_string_tracing
, t
);
678 INHERIT (to_trace_init
, t
);
679 INHERIT (to_download_tracepoint
, t
);
680 INHERIT (to_can_download_tracepoint
, t
);
681 INHERIT (to_download_trace_state_variable
, t
);
682 INHERIT (to_enable_tracepoint
, t
);
683 INHERIT (to_disable_tracepoint
, t
);
684 INHERIT (to_trace_set_readonly_regions
, t
);
685 INHERIT (to_trace_start
, t
);
686 INHERIT (to_get_trace_status
, t
);
687 INHERIT (to_get_tracepoint_status
, t
);
688 INHERIT (to_trace_stop
, t
);
689 INHERIT (to_trace_find
, t
);
690 INHERIT (to_get_trace_state_variable_value
, t
);
691 INHERIT (to_save_trace_data
, t
);
692 INHERIT (to_upload_tracepoints
, t
);
693 INHERIT (to_upload_trace_state_variables
, t
);
694 INHERIT (to_get_raw_trace_data
, t
);
695 INHERIT (to_get_min_fast_tracepoint_insn_len
, t
);
696 INHERIT (to_set_disconnected_tracing
, t
);
697 INHERIT (to_set_circular_trace_buffer
, t
);
698 INHERIT (to_set_trace_buffer_size
, t
);
699 INHERIT (to_set_trace_notes
, t
);
700 INHERIT (to_get_tib_address
, t
);
701 INHERIT (to_set_permissions
, t
);
702 INHERIT (to_static_tracepoint_marker_at
, t
);
703 INHERIT (to_static_tracepoint_markers_by_strid
, t
);
704 INHERIT (to_traceframe_info
, t
);
705 INHERIT (to_use_agent
, t
);
706 INHERIT (to_can_use_agent
, t
);
707 INHERIT (to_augmented_libraries_svr4_read
, t
);
708 INHERIT (to_magic
, t
);
709 INHERIT (to_supports_evaluation_of_breakpoint_conditions
, t
);
710 INHERIT (to_can_run_breakpoint_commands
, t
);
711 /* Do not inherit to_memory_map. */
712 /* Do not inherit to_flash_erase. */
713 /* Do not inherit to_flash_done. */
717 /* Clean up a target struct so it no longer has any zero pointers in
718 it. Some entries are defaulted to a method that print an error,
719 others are hard-wired to a standard recursive default. */
721 #define de_fault(field, value) \
722 if (!current_target.field) \
723 current_target.field = value
726 (void (*) (char *, int))
729 (void (*) (struct target_ops
*))
731 de_fault (to_post_attach
,
732 (void (*) (struct target_ops
*, int))
734 de_fault (to_prepare_to_store
,
735 (void (*) (struct target_ops
*, struct regcache
*))
737 de_fault (deprecated_xfer_memory
,
738 (int (*) (CORE_ADDR
, gdb_byte
*, int, int,
739 struct mem_attrib
*, struct target_ops
*))
741 de_fault (to_files_info
,
742 (void (*) (struct target_ops
*))
744 de_fault (to_can_use_hw_breakpoint
,
745 (int (*) (struct target_ops
*, int, int, int))
747 de_fault (to_insert_hw_breakpoint
,
748 (int (*) (struct target_ops
*, struct gdbarch
*,
749 struct bp_target_info
*))
751 de_fault (to_remove_hw_breakpoint
,
752 (int (*) (struct target_ops
*, struct gdbarch
*,
753 struct bp_target_info
*))
755 de_fault (to_insert_watchpoint
,
756 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
757 struct expression
*))
759 de_fault (to_remove_watchpoint
,
760 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
761 struct expression
*))
763 de_fault (to_watchpoint_addr_within_range
,
764 default_watchpoint_addr_within_range
);
765 de_fault (to_region_ok_for_hw_watchpoint
,
766 default_region_ok_for_hw_watchpoint
);
767 de_fault (to_can_accel_watchpoint_condition
,
768 (int (*) (struct target_ops
*, CORE_ADDR
, int, int,
769 struct expression
*))
771 de_fault (to_terminal_init
,
772 (void (*) (struct target_ops
*))
774 de_fault (to_terminal_inferior
,
775 (void (*) (struct target_ops
*))
777 de_fault (to_terminal_ours_for_output
,
778 (void (*) (struct target_ops
*))
780 de_fault (to_terminal_ours
,
781 (void (*) (struct target_ops
*))
783 de_fault (to_terminal_save_ours
,
784 (void (*) (struct target_ops
*))
786 de_fault (to_terminal_info
,
787 default_terminal_info
);
789 (void (*) (struct target_ops
*, char *, int))
791 de_fault (to_post_startup_inferior
,
792 (void (*) (struct target_ops
*, ptid_t
))
794 de_fault (to_insert_fork_catchpoint
,
795 (int (*) (struct target_ops
*, int))
797 de_fault (to_remove_fork_catchpoint
,
798 (int (*) (struct target_ops
*, int))
800 de_fault (to_insert_vfork_catchpoint
,
801 (int (*) (struct target_ops
*, int))
803 de_fault (to_remove_vfork_catchpoint
,
804 (int (*) (struct target_ops
*, int))
806 de_fault (to_insert_exec_catchpoint
,
807 (int (*) (struct target_ops
*, int))
809 de_fault (to_remove_exec_catchpoint
,
810 (int (*) (struct target_ops
*, int))
812 de_fault (to_set_syscall_catchpoint
,
813 (int (*) (struct target_ops
*, int, int, int, int, int *))
815 de_fault (to_has_exited
,
816 (int (*) (int, int, int *))
818 de_fault (to_can_run
,
820 de_fault (to_extra_thread_info
,
821 (char *(*) (struct thread_info
*))
823 de_fault (to_thread_name
,
824 (char *(*) (struct thread_info
*))
830 (void (*) (char *, struct ui_file
*))
832 de_fault (to_pid_to_exec_file
,
835 de_fault (to_thread_architecture
,
836 default_thread_architecture
);
837 current_target
.to_read_description
= NULL
;
838 de_fault (to_get_ada_task_ptid
,
839 (ptid_t (*) (long, long))
840 default_get_ada_task_ptid
);
841 de_fault (to_supports_multi_process
,
844 de_fault (to_supports_enable_disable_tracepoint
,
847 de_fault (to_supports_string_tracing
,
850 de_fault (to_trace_init
,
853 de_fault (to_download_tracepoint
,
854 (void (*) (struct bp_location
*))
856 de_fault (to_can_download_tracepoint
,
859 de_fault (to_download_trace_state_variable
,
860 (void (*) (struct trace_state_variable
*))
862 de_fault (to_enable_tracepoint
,
863 (void (*) (struct bp_location
*))
865 de_fault (to_disable_tracepoint
,
866 (void (*) (struct bp_location
*))
868 de_fault (to_trace_set_readonly_regions
,
871 de_fault (to_trace_start
,
874 de_fault (to_get_trace_status
,
875 (int (*) (struct trace_status
*))
877 de_fault (to_get_tracepoint_status
,
878 (void (*) (struct breakpoint
*, struct uploaded_tp
*))
880 de_fault (to_trace_stop
,
883 de_fault (to_trace_find
,
884 (int (*) (enum trace_find_type
, int, CORE_ADDR
, CORE_ADDR
, int *))
886 de_fault (to_get_trace_state_variable_value
,
887 (int (*) (int, LONGEST
*))
889 de_fault (to_save_trace_data
,
890 (int (*) (const char *))
892 de_fault (to_upload_tracepoints
,
893 (int (*) (struct uploaded_tp
**))
895 de_fault (to_upload_trace_state_variables
,
896 (int (*) (struct uploaded_tsv
**))
898 de_fault (to_get_raw_trace_data
,
899 (LONGEST (*) (gdb_byte
*, ULONGEST
, LONGEST
))
901 de_fault (to_get_min_fast_tracepoint_insn_len
,
904 de_fault (to_set_disconnected_tracing
,
907 de_fault (to_set_circular_trace_buffer
,
910 de_fault (to_set_trace_buffer_size
,
913 de_fault (to_set_trace_notes
,
914 (int (*) (const char *, const char *, const char *))
916 de_fault (to_get_tib_address
,
917 (int (*) (ptid_t
, CORE_ADDR
*))
919 de_fault (to_set_permissions
,
922 de_fault (to_static_tracepoint_marker_at
,
923 (int (*) (CORE_ADDR
, struct static_tracepoint_marker
*))
925 de_fault (to_static_tracepoint_markers_by_strid
,
926 (VEC(static_tracepoint_marker_p
) * (*) (const char *))
928 de_fault (to_traceframe_info
,
929 (struct traceframe_info
* (*) (void))
931 de_fault (to_supports_evaluation_of_breakpoint_conditions
,
934 de_fault (to_can_run_breakpoint_commands
,
937 de_fault (to_use_agent
,
940 de_fault (to_can_use_agent
,
943 de_fault (to_augmented_libraries_svr4_read
,
946 de_fault (to_execution_direction
, default_execution_direction
);
950 /* Finally, position the target-stack beneath the squashed
951 "current_target". That way code looking for a non-inherited
952 target method can quickly and simply find it. */
953 current_target
.beneath
= target_stack
;
956 setup_target_debug ();
959 /* Push a new target type into the stack of the existing target accessors,
960 possibly superseding some of the existing accessors.
962 Rather than allow an empty stack, we always have the dummy target at
963 the bottom stratum, so we can call the function vectors without
967 push_target (struct target_ops
*t
)
969 struct target_ops
**cur
;
971 /* Check magic number. If wrong, it probably means someone changed
972 the struct definition, but not all the places that initialize one. */
973 if (t
->to_magic
!= OPS_MAGIC
)
975 fprintf_unfiltered (gdb_stderr
,
976 "Magic number of %s target struct wrong\n",
978 internal_error (__FILE__
, __LINE__
,
979 _("failed internal consistency check"));
982 /* Find the proper stratum to install this target in. */
983 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
985 if ((int) (t
->to_stratum
) >= (int) (*cur
)->to_stratum
)
989 /* If there's already targets at this stratum, remove them. */
990 /* FIXME: cagney/2003-10-15: I think this should be popping all
991 targets to CUR, and not just those at this stratum level. */
992 while ((*cur
) != NULL
&& t
->to_stratum
== (*cur
)->to_stratum
)
994 /* There's already something at this stratum level. Close it,
995 and un-hook it from the stack. */
996 struct target_ops
*tmp
= (*cur
);
998 (*cur
) = (*cur
)->beneath
;
1003 /* We have removed all targets in our stratum, now add the new one. */
1004 t
->beneath
= (*cur
);
1007 update_current_target ();
1010 /* Remove a target_ops vector from the stack, wherever it may be.
1011 Return how many times it was removed (0 or 1). */
1014 unpush_target (struct target_ops
*t
)
1016 struct target_ops
**cur
;
1017 struct target_ops
*tmp
;
1019 if (t
->to_stratum
== dummy_stratum
)
1020 internal_error (__FILE__
, __LINE__
,
1021 _("Attempt to unpush the dummy target"));
1023 /* Look for the specified target. Note that we assume that a target
1024 can only occur once in the target stack. */
1026 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1032 /* If we don't find target_ops, quit. Only open targets should be
1037 /* Unchain the target. */
1039 (*cur
) = (*cur
)->beneath
;
1040 tmp
->beneath
= NULL
;
1042 update_current_target ();
1044 /* Finally close the target. Note we do this after unchaining, so
1045 any target method calls from within the target_close
1046 implementation don't end up in T anymore. */
1053 pop_all_targets_above (enum strata above_stratum
)
1055 while ((int) (current_target
.to_stratum
) > (int) above_stratum
)
1057 if (!unpush_target (target_stack
))
1059 fprintf_unfiltered (gdb_stderr
,
1060 "pop_all_targets couldn't find target %s\n",
1061 target_stack
->to_shortname
);
1062 internal_error (__FILE__
, __LINE__
,
1063 _("failed internal consistency check"));
1070 pop_all_targets (void)
1072 pop_all_targets_above (dummy_stratum
);
1075 /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */
1078 target_is_pushed (struct target_ops
*t
)
1080 struct target_ops
**cur
;
1082 /* Check magic number. If wrong, it probably means someone changed
1083 the struct definition, but not all the places that initialize one. */
1084 if (t
->to_magic
!= OPS_MAGIC
)
1086 fprintf_unfiltered (gdb_stderr
,
1087 "Magic number of %s target struct wrong\n",
1089 internal_error (__FILE__
, __LINE__
,
1090 _("failed internal consistency check"));
1093 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1100 /* Using the objfile specified in OBJFILE, find the address for the
1101 current thread's thread-local storage with offset OFFSET. */
1103 target_translate_tls_address (struct objfile
*objfile
, CORE_ADDR offset
)
1105 volatile CORE_ADDR addr
= 0;
1106 struct target_ops
*target
;
1108 for (target
= current_target
.beneath
;
1110 target
= target
->beneath
)
1112 if (target
->to_get_thread_local_address
!= NULL
)
1117 && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ()))
1119 ptid_t ptid
= inferior_ptid
;
1120 volatile struct gdb_exception ex
;
1122 TRY_CATCH (ex
, RETURN_MASK_ALL
)
1126 /* Fetch the load module address for this objfile. */
1127 lm_addr
= gdbarch_fetch_tls_load_module_address (target_gdbarch (),
1129 /* If it's 0, throw the appropriate exception. */
1131 throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR
,
1132 _("TLS load module not found"));
1134 addr
= target
->to_get_thread_local_address (target
, ptid
,
1137 /* If an error occurred, print TLS related messages here. Otherwise,
1138 throw the error to some higher catcher. */
1141 int objfile_is_library
= (objfile
->flags
& OBJF_SHARED
);
1145 case TLS_NO_LIBRARY_SUPPORT_ERROR
:
1146 error (_("Cannot find thread-local variables "
1147 "in this thread library."));
1149 case TLS_LOAD_MODULE_NOT_FOUND_ERROR
:
1150 if (objfile_is_library
)
1151 error (_("Cannot find shared library `%s' in dynamic"
1152 " linker's load module list"), objfile_name (objfile
));
1154 error (_("Cannot find executable file `%s' in dynamic"
1155 " linker's load module list"), objfile_name (objfile
));
1157 case TLS_NOT_ALLOCATED_YET_ERROR
:
1158 if (objfile_is_library
)
1159 error (_("The inferior has not yet allocated storage for"
1160 " thread-local variables in\n"
1161 "the shared library `%s'\n"
1163 objfile_name (objfile
), target_pid_to_str (ptid
));
1165 error (_("The inferior has not yet allocated storage for"
1166 " thread-local variables in\n"
1167 "the executable `%s'\n"
1169 objfile_name (objfile
), target_pid_to_str (ptid
));
1171 case TLS_GENERIC_ERROR
:
1172 if (objfile_is_library
)
1173 error (_("Cannot find thread-local storage for %s, "
1174 "shared library %s:\n%s"),
1175 target_pid_to_str (ptid
),
1176 objfile_name (objfile
), ex
.message
);
1178 error (_("Cannot find thread-local storage for %s, "
1179 "executable file %s:\n%s"),
1180 target_pid_to_str (ptid
),
1181 objfile_name (objfile
), ex
.message
);
1184 throw_exception (ex
);
1189 /* It wouldn't be wrong here to try a gdbarch method, too; finding
1190 TLS is an ABI-specific thing. But we don't do that yet. */
1192 error (_("Cannot find thread-local variables on this target"));
1198 target_xfer_status_to_string (enum target_xfer_status err
)
1200 #define CASE(X) case X: return #X
1203 CASE(TARGET_XFER_E_IO
);
1204 CASE(TARGET_XFER_E_UNAVAILABLE
);
1213 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
1215 /* target_read_string -- read a null terminated string, up to LEN bytes,
1216 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
1217 Set *STRING to a pointer to malloc'd memory containing the data; the caller
1218 is responsible for freeing it. Return the number of bytes successfully
1222 target_read_string (CORE_ADDR memaddr
, char **string
, int len
, int *errnop
)
1224 int tlen
, offset
, i
;
1228 int buffer_allocated
;
1230 unsigned int nbytes_read
= 0;
1232 gdb_assert (string
);
1234 /* Small for testing. */
1235 buffer_allocated
= 4;
1236 buffer
= xmalloc (buffer_allocated
);
1241 tlen
= MIN (len
, 4 - (memaddr
& 3));
1242 offset
= memaddr
& 3;
1244 errcode
= target_read_memory (memaddr
& ~3, buf
, sizeof buf
);
1247 /* The transfer request might have crossed the boundary to an
1248 unallocated region of memory. Retry the transfer, requesting
1252 errcode
= target_read_memory (memaddr
, buf
, 1);
1257 if (bufptr
- buffer
+ tlen
> buffer_allocated
)
1261 bytes
= bufptr
- buffer
;
1262 buffer_allocated
*= 2;
1263 buffer
= xrealloc (buffer
, buffer_allocated
);
1264 bufptr
= buffer
+ bytes
;
1267 for (i
= 0; i
< tlen
; i
++)
1269 *bufptr
++ = buf
[i
+ offset
];
1270 if (buf
[i
+ offset
] == '\000')
1272 nbytes_read
+= i
+ 1;
1279 nbytes_read
+= tlen
;
1288 struct target_section_table
*
1289 target_get_section_table (struct target_ops
*target
)
1291 struct target_ops
*t
;
1294 fprintf_unfiltered (gdb_stdlog
, "target_get_section_table ()\n");
1296 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
1297 if (t
->to_get_section_table
!= NULL
)
1298 return (*t
->to_get_section_table
) (t
);
1303 /* Find a section containing ADDR. */
1305 struct target_section
*
1306 target_section_by_addr (struct target_ops
*target
, CORE_ADDR addr
)
1308 struct target_section_table
*table
= target_get_section_table (target
);
1309 struct target_section
*secp
;
1314 for (secp
= table
->sections
; secp
< table
->sections_end
; secp
++)
1316 if (addr
>= secp
->addr
&& addr
< secp
->endaddr
)
1322 /* Read memory from the live target, even if currently inspecting a
1323 traceframe. The return is the same as that of target_read. */
1325 static enum target_xfer_status
1326 target_read_live_memory (enum target_object object
,
1327 ULONGEST memaddr
, gdb_byte
*myaddr
, ULONGEST len
,
1328 ULONGEST
*xfered_len
)
1330 enum target_xfer_status ret
;
1331 struct cleanup
*cleanup
;
1333 /* Switch momentarily out of tfind mode so to access live memory.
1334 Note that this must not clear global state, such as the frame
1335 cache, which must still remain valid for the previous traceframe.
1336 We may be _building_ the frame cache at this point. */
1337 cleanup
= make_cleanup_restore_traceframe_number ();
1338 set_traceframe_number (-1);
1340 ret
= target_xfer_partial (current_target
.beneath
, object
, NULL
,
1341 myaddr
, NULL
, memaddr
, len
, xfered_len
);
1343 do_cleanups (cleanup
);
1347 /* Using the set of read-only target sections of OPS, read live
1348 read-only memory. Note that the actual reads start from the
1349 top-most target again.
1351 For interface/parameters/return description see target.h,
1354 static enum target_xfer_status
1355 memory_xfer_live_readonly_partial (struct target_ops
*ops
,
1356 enum target_object object
,
1357 gdb_byte
*readbuf
, ULONGEST memaddr
,
1358 ULONGEST len
, ULONGEST
*xfered_len
)
1360 struct target_section
*secp
;
1361 struct target_section_table
*table
;
1363 secp
= target_section_by_addr (ops
, memaddr
);
1365 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1366 secp
->the_bfd_section
)
1369 struct target_section
*p
;
1370 ULONGEST memend
= memaddr
+ len
;
1372 table
= target_get_section_table (ops
);
1374 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
1376 if (memaddr
>= p
->addr
)
1378 if (memend
<= p
->endaddr
)
1380 /* Entire transfer is within this section. */
1381 return target_read_live_memory (object
, memaddr
,
1382 readbuf
, len
, xfered_len
);
1384 else if (memaddr
>= p
->endaddr
)
1386 /* This section ends before the transfer starts. */
1391 /* This section overlaps the transfer. Just do half. */
1392 len
= p
->endaddr
- memaddr
;
1393 return target_read_live_memory (object
, memaddr
,
1394 readbuf
, len
, xfered_len
);
1400 return TARGET_XFER_EOF
;
1403 /* Read memory from more than one valid target. A core file, for
1404 instance, could have some of memory but delegate other bits to
1405 the target below it. So, we must manually try all targets. */
1407 static enum target_xfer_status
1408 raw_memory_xfer_partial (struct target_ops
*ops
, gdb_byte
*readbuf
,
1409 const gdb_byte
*writebuf
, ULONGEST memaddr
, LONGEST len
,
1410 ULONGEST
*xfered_len
)
1412 enum target_xfer_status res
;
1416 res
= ops
->to_xfer_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1417 readbuf
, writebuf
, memaddr
, len
,
1419 if (res
== TARGET_XFER_OK
)
1422 /* Stop if the target reports that the memory is not available. */
1423 if (res
== TARGET_XFER_E_UNAVAILABLE
)
1426 /* We want to continue past core files to executables, but not
1427 past a running target's memory. */
1428 if (ops
->to_has_all_memory (ops
))
1433 while (ops
!= NULL
);
1438 /* Perform a partial memory transfer.
1439 For docs see target.h, to_xfer_partial. */
1441 static enum target_xfer_status
1442 memory_xfer_partial_1 (struct target_ops
*ops
, enum target_object object
,
1443 gdb_byte
*readbuf
, const gdb_byte
*writebuf
, ULONGEST memaddr
,
1444 ULONGEST len
, ULONGEST
*xfered_len
)
1446 enum target_xfer_status res
;
1448 struct mem_region
*region
;
1449 struct inferior
*inf
;
1451 /* For accesses to unmapped overlay sections, read directly from
1452 files. Must do this first, as MEMADDR may need adjustment. */
1453 if (readbuf
!= NULL
&& overlay_debugging
)
1455 struct obj_section
*section
= find_pc_overlay (memaddr
);
1457 if (pc_in_unmapped_range (memaddr
, section
))
1459 struct target_section_table
*table
1460 = target_get_section_table (ops
);
1461 const char *section_name
= section
->the_bfd_section
->name
;
1463 memaddr
= overlay_mapped_address (memaddr
, section
);
1464 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1465 memaddr
, len
, xfered_len
,
1467 table
->sections_end
,
1472 /* Try the executable files, if "trust-readonly-sections" is set. */
1473 if (readbuf
!= NULL
&& trust_readonly
)
1475 struct target_section
*secp
;
1476 struct target_section_table
*table
;
1478 secp
= target_section_by_addr (ops
, memaddr
);
1480 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1481 secp
->the_bfd_section
)
1484 table
= target_get_section_table (ops
);
1485 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1486 memaddr
, len
, xfered_len
,
1488 table
->sections_end
,
1493 /* If reading unavailable memory in the context of traceframes, and
1494 this address falls within a read-only section, fallback to
1495 reading from live memory. */
1496 if (readbuf
!= NULL
&& get_traceframe_number () != -1)
1498 VEC(mem_range_s
) *available
;
1500 /* If we fail to get the set of available memory, then the
1501 target does not support querying traceframe info, and so we
1502 attempt reading from the traceframe anyway (assuming the
1503 target implements the old QTro packet then). */
1504 if (traceframe_available_memory (&available
, memaddr
, len
))
1506 struct cleanup
*old_chain
;
1508 old_chain
= make_cleanup (VEC_cleanup(mem_range_s
), &available
);
1510 if (VEC_empty (mem_range_s
, available
)
1511 || VEC_index (mem_range_s
, available
, 0)->start
!= memaddr
)
1513 /* Don't read into the traceframe's available
1515 if (!VEC_empty (mem_range_s
, available
))
1517 LONGEST oldlen
= len
;
1519 len
= VEC_index (mem_range_s
, available
, 0)->start
- memaddr
;
1520 gdb_assert (len
<= oldlen
);
1523 do_cleanups (old_chain
);
1525 /* This goes through the topmost target again. */
1526 res
= memory_xfer_live_readonly_partial (ops
, object
,
1529 if (res
== TARGET_XFER_OK
)
1530 return TARGET_XFER_OK
;
1533 /* No use trying further, we know some memory starting
1534 at MEMADDR isn't available. */
1536 return TARGET_XFER_E_UNAVAILABLE
;
1540 /* Don't try to read more than how much is available, in
1541 case the target implements the deprecated QTro packet to
1542 cater for older GDBs (the target's knowledge of read-only
1543 sections may be outdated by now). */
1544 len
= VEC_index (mem_range_s
, available
, 0)->length
;
1546 do_cleanups (old_chain
);
1550 /* Try GDB's internal data cache. */
1551 region
= lookup_mem_region (memaddr
);
1552 /* region->hi == 0 means there's no upper bound. */
1553 if (memaddr
+ len
< region
->hi
|| region
->hi
== 0)
1556 reg_len
= region
->hi
- memaddr
;
1558 switch (region
->attrib
.mode
)
1561 if (writebuf
!= NULL
)
1562 return TARGET_XFER_E_IO
;
1566 if (readbuf
!= NULL
)
1567 return TARGET_XFER_E_IO
;
1571 /* We only support writing to flash during "load" for now. */
1572 if (writebuf
!= NULL
)
1573 error (_("Writing to flash memory forbidden in this context"));
1577 return TARGET_XFER_E_IO
;
1580 if (!ptid_equal (inferior_ptid
, null_ptid
))
1581 inf
= find_inferior_pid (ptid_get_pid (inferior_ptid
));
1586 /* The dcache reads whole cache lines; that doesn't play well
1587 with reading from a trace buffer, because reading outside of
1588 the collected memory range fails. */
1589 && get_traceframe_number () == -1
1590 && (region
->attrib
.cache
1591 || (stack_cache_enabled_p () && object
== TARGET_OBJECT_STACK_MEMORY
)
1592 || (code_cache_enabled_p () && object
== TARGET_OBJECT_CODE_MEMORY
)))
1594 DCACHE
*dcache
= target_dcache_get_or_init ();
1597 if (readbuf
!= NULL
)
1598 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, readbuf
, reg_len
, 0);
1600 /* FIXME drow/2006-08-09: If we're going to preserve const
1601 correctness dcache_xfer_memory should take readbuf and
1603 l
= dcache_xfer_memory (ops
, dcache
, memaddr
, (void *) writebuf
,
1606 return TARGET_XFER_E_IO
;
1609 *xfered_len
= (ULONGEST
) l
;
1610 return TARGET_XFER_OK
;
1614 /* If none of those methods found the memory we wanted, fall back
1615 to a target partial transfer. Normally a single call to
1616 to_xfer_partial is enough; if it doesn't recognize an object
1617 it will call the to_xfer_partial of the next target down.
1618 But for memory this won't do. Memory is the only target
1619 object which can be read from more than one valid target.
1620 A core file, for instance, could have some of memory but
1621 delegate other bits to the target below it. So, we must
1622 manually try all targets. */
1624 res
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, memaddr
, reg_len
,
1627 /* Make sure the cache gets updated no matter what - if we are writing
1628 to the stack. Even if this write is not tagged as such, we still need
1629 to update the cache. */
1631 if (res
== TARGET_XFER_OK
1634 && target_dcache_init_p ()
1635 && !region
->attrib
.cache
1636 && ((stack_cache_enabled_p () && object
!= TARGET_OBJECT_STACK_MEMORY
)
1637 || (code_cache_enabled_p () && object
!= TARGET_OBJECT_CODE_MEMORY
)))
1639 DCACHE
*dcache
= target_dcache_get ();
1641 dcache_update (dcache
, memaddr
, (void *) writebuf
, reg_len
);
1644 /* If we still haven't got anything, return the last error. We
1649 /* Perform a partial memory transfer. For docs see target.h,
1652 static enum target_xfer_status
1653 memory_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1654 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1655 ULONGEST memaddr
, ULONGEST len
, ULONGEST
*xfered_len
)
1657 enum target_xfer_status res
;
1659 /* Zero length requests are ok and require no work. */
1661 return TARGET_XFER_EOF
;
1663 /* Fill in READBUF with breakpoint shadows, or WRITEBUF with
1664 breakpoint insns, thus hiding out from higher layers whether
1665 there are software breakpoints inserted in the code stream. */
1666 if (readbuf
!= NULL
)
1668 res
= memory_xfer_partial_1 (ops
, object
, readbuf
, NULL
, memaddr
, len
,
1671 if (res
== TARGET_XFER_OK
&& !show_memory_breakpoints
)
1672 breakpoint_xfer_memory (readbuf
, NULL
, NULL
, memaddr
, res
);
1677 struct cleanup
*old_chain
;
1679 /* A large write request is likely to be partially satisfied
1680 by memory_xfer_partial_1. We will continually malloc
1681 and free a copy of the entire write request for breakpoint
1682 shadow handling even though we only end up writing a small
1683 subset of it. Cap writes to 4KB to mitigate this. */
1684 len
= min (4096, len
);
1686 buf
= xmalloc (len
);
1687 old_chain
= make_cleanup (xfree
, buf
);
1688 memcpy (buf
, writebuf
, len
);
1690 breakpoint_xfer_memory (NULL
, buf
, writebuf
, memaddr
, len
);
1691 res
= memory_xfer_partial_1 (ops
, object
, NULL
, buf
, memaddr
, len
,
1694 do_cleanups (old_chain
);
1701 restore_show_memory_breakpoints (void *arg
)
1703 show_memory_breakpoints
= (uintptr_t) arg
;
1707 make_show_memory_breakpoints_cleanup (int show
)
1709 int current
= show_memory_breakpoints
;
1711 show_memory_breakpoints
= show
;
1712 return make_cleanup (restore_show_memory_breakpoints
,
1713 (void *) (uintptr_t) current
);
1716 /* For docs see target.h, to_xfer_partial. */
1718 enum target_xfer_status
1719 target_xfer_partial (struct target_ops
*ops
,
1720 enum target_object object
, const char *annex
,
1721 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1722 ULONGEST offset
, ULONGEST len
,
1723 ULONGEST
*xfered_len
)
1725 enum target_xfer_status retval
;
1727 gdb_assert (ops
->to_xfer_partial
!= NULL
);
1729 /* Transfer is done when LEN is zero. */
1731 return TARGET_XFER_EOF
;
1733 if (writebuf
&& !may_write_memory
)
1734 error (_("Writing to memory is not allowed (addr %s, len %s)"),
1735 core_addr_to_string_nz (offset
), plongest (len
));
1739 /* If this is a memory transfer, let the memory-specific code
1740 have a look at it instead. Memory transfers are more
1742 if (object
== TARGET_OBJECT_MEMORY
|| object
== TARGET_OBJECT_STACK_MEMORY
1743 || object
== TARGET_OBJECT_CODE_MEMORY
)
1744 retval
= memory_xfer_partial (ops
, object
, readbuf
,
1745 writebuf
, offset
, len
, xfered_len
);
1746 else if (object
== TARGET_OBJECT_RAW_MEMORY
)
1748 /* Request the normal memory object from other layers. */
1749 retval
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, offset
, len
,
1753 retval
= ops
->to_xfer_partial (ops
, object
, annex
, readbuf
,
1754 writebuf
, offset
, len
, xfered_len
);
1758 const unsigned char *myaddr
= NULL
;
1760 fprintf_unfiltered (gdb_stdlog
,
1761 "%s:target_xfer_partial "
1762 "(%d, %s, %s, %s, %s, %s) = %d, %s",
1765 (annex
? annex
: "(null)"),
1766 host_address_to_string (readbuf
),
1767 host_address_to_string (writebuf
),
1768 core_addr_to_string_nz (offset
),
1769 pulongest (len
), retval
,
1770 pulongest (*xfered_len
));
1776 if (retval
== TARGET_XFER_OK
&& myaddr
!= NULL
)
1780 fputs_unfiltered (", bytes =", gdb_stdlog
);
1781 for (i
= 0; i
< *xfered_len
; i
++)
1783 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
1785 if (targetdebug
< 2 && i
> 0)
1787 fprintf_unfiltered (gdb_stdlog
, " ...");
1790 fprintf_unfiltered (gdb_stdlog
, "\n");
1793 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
1797 fputc_unfiltered ('\n', gdb_stdlog
);
1800 /* Check implementations of to_xfer_partial update *XFERED_LEN
1801 properly. Do assertion after printing debug messages, so that we
1802 can find more clues on assertion failure from debugging messages. */
1803 if (retval
== TARGET_XFER_OK
|| retval
== TARGET_XFER_E_UNAVAILABLE
)
1804 gdb_assert (*xfered_len
> 0);
1809 /* Read LEN bytes of target memory at address MEMADDR, placing the
1810 results in GDB's memory at MYADDR. Returns either 0 for success or
1811 TARGET_XFER_E_IO if any error occurs.
1813 If an error occurs, no guarantee is made about the contents of the data at
1814 MYADDR. In particular, the caller should not depend upon partial reads
1815 filling the buffer with good data. There is no way for the caller to know
1816 how much good data might have been transfered anyway. Callers that can
1817 deal with partial reads should call target_read (which will retry until
1818 it makes no progress, and then return how much was transferred). */
1821 target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1823 /* Dispatch to the topmost target, not the flattened current_target.
1824 Memory accesses check target->to_has_(all_)memory, and the
1825 flattened target doesn't inherit those. */
1826 if (target_read (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1827 myaddr
, memaddr
, len
) == len
)
1830 return TARGET_XFER_E_IO
;
1833 /* Like target_read_memory, but specify explicitly that this is a read
1834 from the target's raw memory. That is, this read bypasses the
1835 dcache, breakpoint shadowing, etc. */
1838 target_read_raw_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1840 /* See comment in target_read_memory about why the request starts at
1841 current_target.beneath. */
1842 if (target_read (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1843 myaddr
, memaddr
, len
) == len
)
1846 return TARGET_XFER_E_IO
;
1849 /* Like target_read_memory, but specify explicitly that this is a read from
1850 the target's stack. This may trigger different cache behavior. */
1853 target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1855 /* See comment in target_read_memory about why the request starts at
1856 current_target.beneath. */
1857 if (target_read (current_target
.beneath
, TARGET_OBJECT_STACK_MEMORY
, NULL
,
1858 myaddr
, memaddr
, len
) == len
)
1861 return TARGET_XFER_E_IO
;
1864 /* Like target_read_memory, but specify explicitly that this is a read from
1865 the target's code. This may trigger different cache behavior. */
1868 target_read_code (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1870 /* See comment in target_read_memory about why the request starts at
1871 current_target.beneath. */
1872 if (target_read (current_target
.beneath
, TARGET_OBJECT_CODE_MEMORY
, NULL
,
1873 myaddr
, memaddr
, len
) == len
)
1876 return TARGET_XFER_E_IO
;
1879 /* Write LEN bytes from MYADDR to target memory at address MEMADDR.
1880 Returns either 0 for success or TARGET_XFER_E_IO if any
1881 error occurs. If an error occurs, no guarantee is made about how
1882 much data got written. Callers that can deal with partial writes
1883 should call target_write. */
1886 target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1888 /* See comment in target_read_memory about why the request starts at
1889 current_target.beneath. */
1890 if (target_write (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1891 myaddr
, memaddr
, len
) == len
)
1894 return TARGET_XFER_E_IO
;
1897 /* Write LEN bytes from MYADDR to target raw memory at address
1898 MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO
1899 if any error occurs. If an error occurs, no guarantee is made
1900 about how much data got written. Callers that can deal with
1901 partial writes should call target_write. */
1904 target_write_raw_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1906 /* See comment in target_read_memory about why the request starts at
1907 current_target.beneath. */
1908 if (target_write (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1909 myaddr
, memaddr
, len
) == len
)
1912 return TARGET_XFER_E_IO
;
1915 /* Fetch the target's memory map. */
1918 target_memory_map (void)
1920 VEC(mem_region_s
) *result
;
1921 struct mem_region
*last_one
, *this_one
;
1923 struct target_ops
*t
;
1926 fprintf_unfiltered (gdb_stdlog
, "target_memory_map ()\n");
1928 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1929 if (t
->to_memory_map
!= NULL
)
1935 result
= t
->to_memory_map (t
);
1939 qsort (VEC_address (mem_region_s
, result
),
1940 VEC_length (mem_region_s
, result
),
1941 sizeof (struct mem_region
), mem_region_cmp
);
1943 /* Check that regions do not overlap. Simultaneously assign
1944 a numbering for the "mem" commands to use to refer to
1947 for (ix
= 0; VEC_iterate (mem_region_s
, result
, ix
, this_one
); ix
++)
1949 this_one
->number
= ix
;
1951 if (last_one
&& last_one
->hi
> this_one
->lo
)
1953 warning (_("Overlapping regions in memory map: ignoring"));
1954 VEC_free (mem_region_s
, result
);
1957 last_one
= this_one
;
1964 target_flash_erase (ULONGEST address
, LONGEST length
)
1966 struct target_ops
*t
;
1968 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1969 if (t
->to_flash_erase
!= NULL
)
1972 fprintf_unfiltered (gdb_stdlog
, "target_flash_erase (%s, %s)\n",
1973 hex_string (address
), phex (length
, 0));
1974 t
->to_flash_erase (t
, address
, length
);
1982 target_flash_done (void)
1984 struct target_ops
*t
;
1986 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1987 if (t
->to_flash_done
!= NULL
)
1990 fprintf_unfiltered (gdb_stdlog
, "target_flash_done\n");
1991 t
->to_flash_done (t
);
1999 show_trust_readonly (struct ui_file
*file
, int from_tty
,
2000 struct cmd_list_element
*c
, const char *value
)
2002 fprintf_filtered (file
,
2003 _("Mode for reading from readonly sections is %s.\n"),
2007 /* More generic transfers. */
2009 static enum target_xfer_status
2010 default_xfer_partial (struct target_ops
*ops
, enum target_object object
,
2011 const char *annex
, gdb_byte
*readbuf
,
2012 const gdb_byte
*writebuf
, ULONGEST offset
, ULONGEST len
,
2013 ULONGEST
*xfered_len
)
2015 if (object
== TARGET_OBJECT_MEMORY
2016 && ops
->deprecated_xfer_memory
!= NULL
)
2017 /* If available, fall back to the target's
2018 "deprecated_xfer_memory" method. */
2023 if (writebuf
!= NULL
)
2025 void *buffer
= xmalloc (len
);
2026 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
2028 memcpy (buffer
, writebuf
, len
);
2029 xfered
= ops
->deprecated_xfer_memory (offset
, buffer
, len
,
2030 1/*write*/, NULL
, ops
);
2031 do_cleanups (cleanup
);
2033 if (readbuf
!= NULL
)
2034 xfered
= ops
->deprecated_xfer_memory (offset
, readbuf
, len
,
2035 0/*read*/, NULL
, ops
);
2038 *xfered_len
= (ULONGEST
) xfered
;
2039 return TARGET_XFER_E_IO
;
2041 else if (xfered
== 0 && errno
== 0)
2042 /* "deprecated_xfer_memory" uses 0, cross checked against
2043 ERRNO as one indication of an error. */
2044 return TARGET_XFER_EOF
;
2046 return TARGET_XFER_E_IO
;
2050 gdb_assert (ops
->beneath
!= NULL
);
2051 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
2052 readbuf
, writebuf
, offset
, len
,
2057 /* Target vector read/write partial wrapper functions. */
2059 static enum target_xfer_status
2060 target_read_partial (struct target_ops
*ops
,
2061 enum target_object object
,
2062 const char *annex
, gdb_byte
*buf
,
2063 ULONGEST offset
, ULONGEST len
,
2064 ULONGEST
*xfered_len
)
2066 return target_xfer_partial (ops
, object
, annex
, buf
, NULL
, offset
, len
,
2070 static enum target_xfer_status
2071 target_write_partial (struct target_ops
*ops
,
2072 enum target_object object
,
2073 const char *annex
, const gdb_byte
*buf
,
2074 ULONGEST offset
, LONGEST len
, ULONGEST
*xfered_len
)
2076 return target_xfer_partial (ops
, object
, annex
, NULL
, buf
, offset
, len
,
2080 /* Wrappers to perform the full transfer. */
2082 /* For docs on target_read see target.h. */
2085 target_read (struct target_ops
*ops
,
2086 enum target_object object
,
2087 const char *annex
, gdb_byte
*buf
,
2088 ULONGEST offset
, LONGEST len
)
2092 while (xfered
< len
)
2094 ULONGEST xfered_len
;
2095 enum target_xfer_status status
;
2097 status
= target_read_partial (ops
, object
, annex
,
2098 (gdb_byte
*) buf
+ xfered
,
2099 offset
+ xfered
, len
- xfered
,
2102 /* Call an observer, notifying them of the xfer progress? */
2103 if (status
== TARGET_XFER_EOF
)
2105 else if (status
== TARGET_XFER_OK
)
2107 xfered
+= xfered_len
;
2117 /* Assuming that the entire [begin, end) range of memory cannot be
2118 read, try to read whatever subrange is possible to read.
2120 The function returns, in RESULT, either zero or one memory block.
2121 If there's a readable subrange at the beginning, it is completely
2122 read and returned. Any further readable subrange will not be read.
2123 Otherwise, if there's a readable subrange at the end, it will be
2124 completely read and returned. Any readable subranges before it
2125 (obviously, not starting at the beginning), will be ignored. In
2126 other cases -- either no readable subrange, or readable subrange(s)
2127 that is neither at the beginning, or end, nothing is returned.
2129 The purpose of this function is to handle a read across a boundary
2130 of accessible memory in a case when memory map is not available.
2131 The above restrictions are fine for this case, but will give
2132 incorrect results if the memory is 'patchy'. However, supporting
2133 'patchy' memory would require trying to read every single byte,
2134 and it seems unacceptable solution. Explicit memory map is
2135 recommended for this case -- and target_read_memory_robust will
2136 take care of reading multiple ranges then. */
2139 read_whatever_is_readable (struct target_ops
*ops
,
2140 ULONGEST begin
, ULONGEST end
,
2141 VEC(memory_read_result_s
) **result
)
2143 gdb_byte
*buf
= xmalloc (end
- begin
);
2144 ULONGEST current_begin
= begin
;
2145 ULONGEST current_end
= end
;
2147 memory_read_result_s r
;
2148 ULONGEST xfered_len
;
2150 /* If we previously failed to read 1 byte, nothing can be done here. */
2151 if (end
- begin
<= 1)
2157 /* Check that either first or the last byte is readable, and give up
2158 if not. This heuristic is meant to permit reading accessible memory
2159 at the boundary of accessible region. */
2160 if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2161 buf
, begin
, 1, &xfered_len
) == TARGET_XFER_OK
)
2166 else if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2167 buf
+ (end
-begin
) - 1, end
- 1, 1,
2168 &xfered_len
) == TARGET_XFER_OK
)
2179 /* Loop invariant is that the [current_begin, current_end) was previously
2180 found to be not readable as a whole.
2182 Note loop condition -- if the range has 1 byte, we can't divide the range
2183 so there's no point trying further. */
2184 while (current_end
- current_begin
> 1)
2186 ULONGEST first_half_begin
, first_half_end
;
2187 ULONGEST second_half_begin
, second_half_end
;
2189 ULONGEST middle
= current_begin
+ (current_end
- current_begin
)/2;
2193 first_half_begin
= current_begin
;
2194 first_half_end
= middle
;
2195 second_half_begin
= middle
;
2196 second_half_end
= current_end
;
2200 first_half_begin
= middle
;
2201 first_half_end
= current_end
;
2202 second_half_begin
= current_begin
;
2203 second_half_end
= middle
;
2206 xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2207 buf
+ (first_half_begin
- begin
),
2209 first_half_end
- first_half_begin
);
2211 if (xfer
== first_half_end
- first_half_begin
)
2213 /* This half reads up fine. So, the error must be in the
2215 current_begin
= second_half_begin
;
2216 current_end
= second_half_end
;
2220 /* This half is not readable. Because we've tried one byte, we
2221 know some part of this half if actually redable. Go to the next
2222 iteration to divide again and try to read.
2224 We don't handle the other half, because this function only tries
2225 to read a single readable subrange. */
2226 current_begin
= first_half_begin
;
2227 current_end
= first_half_end
;
2233 /* The [begin, current_begin) range has been read. */
2235 r
.end
= current_begin
;
2240 /* The [current_end, end) range has been read. */
2241 LONGEST rlen
= end
- current_end
;
2243 r
.data
= xmalloc (rlen
);
2244 memcpy (r
.data
, buf
+ current_end
- begin
, rlen
);
2245 r
.begin
= current_end
;
2249 VEC_safe_push(memory_read_result_s
, (*result
), &r
);
2253 free_memory_read_result_vector (void *x
)
2255 VEC(memory_read_result_s
) *v
= x
;
2256 memory_read_result_s
*current
;
2259 for (ix
= 0; VEC_iterate (memory_read_result_s
, v
, ix
, current
); ++ix
)
2261 xfree (current
->data
);
2263 VEC_free (memory_read_result_s
, v
);
2266 VEC(memory_read_result_s
) *
2267 read_memory_robust (struct target_ops
*ops
, ULONGEST offset
, LONGEST len
)
2269 VEC(memory_read_result_s
) *result
= 0;
2272 while (xfered
< len
)
2274 struct mem_region
*region
= lookup_mem_region (offset
+ xfered
);
2277 /* If there is no explicit region, a fake one should be created. */
2278 gdb_assert (region
);
2280 if (region
->hi
== 0)
2281 rlen
= len
- xfered
;
2283 rlen
= region
->hi
- offset
;
2285 if (region
->attrib
.mode
== MEM_NONE
|| region
->attrib
.mode
== MEM_WO
)
2287 /* Cannot read this region. Note that we can end up here only
2288 if the region is explicitly marked inaccessible, or
2289 'inaccessible-by-default' is in effect. */
2294 LONGEST to_read
= min (len
- xfered
, rlen
);
2295 gdb_byte
*buffer
= (gdb_byte
*)xmalloc (to_read
);
2297 LONGEST xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2298 (gdb_byte
*) buffer
,
2299 offset
+ xfered
, to_read
);
2300 /* Call an observer, notifying them of the xfer progress? */
2303 /* Got an error reading full chunk. See if maybe we can read
2306 read_whatever_is_readable (ops
, offset
+ xfered
,
2307 offset
+ xfered
+ to_read
, &result
);
2312 struct memory_read_result r
;
2314 r
.begin
= offset
+ xfered
;
2315 r
.end
= r
.begin
+ xfer
;
2316 VEC_safe_push (memory_read_result_s
, result
, &r
);
2326 /* An alternative to target_write with progress callbacks. */
2329 target_write_with_progress (struct target_ops
*ops
,
2330 enum target_object object
,
2331 const char *annex
, const gdb_byte
*buf
,
2332 ULONGEST offset
, LONGEST len
,
2333 void (*progress
) (ULONGEST
, void *), void *baton
)
2337 /* Give the progress callback a chance to set up. */
2339 (*progress
) (0, baton
);
2341 while (xfered
< len
)
2343 ULONGEST xfered_len
;
2344 enum target_xfer_status status
;
2346 status
= target_write_partial (ops
, object
, annex
,
2347 (gdb_byte
*) buf
+ xfered
,
2348 offset
+ xfered
, len
- xfered
,
2351 if (status
== TARGET_XFER_EOF
)
2353 if (TARGET_XFER_STATUS_ERROR_P (status
))
2356 gdb_assert (status
== TARGET_XFER_OK
);
2358 (*progress
) (xfered_len
, baton
);
2360 xfered
+= xfered_len
;
2366 /* For docs on target_write see target.h. */
2369 target_write (struct target_ops
*ops
,
2370 enum target_object object
,
2371 const char *annex
, const gdb_byte
*buf
,
2372 ULONGEST offset
, LONGEST len
)
2374 return target_write_with_progress (ops
, object
, annex
, buf
, offset
, len
,
2378 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2379 the size of the transferred data. PADDING additional bytes are
2380 available in *BUF_P. This is a helper function for
2381 target_read_alloc; see the declaration of that function for more
2385 target_read_alloc_1 (struct target_ops
*ops
, enum target_object object
,
2386 const char *annex
, gdb_byte
**buf_p
, int padding
)
2388 size_t buf_alloc
, buf_pos
;
2391 /* This function does not have a length parameter; it reads the
2392 entire OBJECT). Also, it doesn't support objects fetched partly
2393 from one target and partly from another (in a different stratum,
2394 e.g. a core file and an executable). Both reasons make it
2395 unsuitable for reading memory. */
2396 gdb_assert (object
!= TARGET_OBJECT_MEMORY
);
2398 /* Start by reading up to 4K at a time. The target will throttle
2399 this number down if necessary. */
2401 buf
= xmalloc (buf_alloc
);
2405 ULONGEST xfered_len
;
2406 enum target_xfer_status status
;
2408 status
= target_read_partial (ops
, object
, annex
, &buf
[buf_pos
],
2409 buf_pos
, buf_alloc
- buf_pos
- padding
,
2412 if (status
== TARGET_XFER_EOF
)
2414 /* Read all there was. */
2421 else if (status
!= TARGET_XFER_OK
)
2423 /* An error occurred. */
2425 return TARGET_XFER_E_IO
;
2428 buf_pos
+= xfered_len
;
2430 /* If the buffer is filling up, expand it. */
2431 if (buf_alloc
< buf_pos
* 2)
2434 buf
= xrealloc (buf
, buf_alloc
);
2441 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2442 the size of the transferred data. See the declaration in "target.h"
2443 function for more information about the return value. */
2446 target_read_alloc (struct target_ops
*ops
, enum target_object object
,
2447 const char *annex
, gdb_byte
**buf_p
)
2449 return target_read_alloc_1 (ops
, object
, annex
, buf_p
, 0);
2452 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
2453 returned as a string, allocated using xmalloc. If an error occurs
2454 or the transfer is unsupported, NULL is returned. Empty objects
2455 are returned as allocated but empty strings. A warning is issued
2456 if the result contains any embedded NUL bytes. */
2459 target_read_stralloc (struct target_ops
*ops
, enum target_object object
,
2464 LONGEST i
, transferred
;
2466 transferred
= target_read_alloc_1 (ops
, object
, annex
, &buffer
, 1);
2467 bufstr
= (char *) buffer
;
2469 if (transferred
< 0)
2472 if (transferred
== 0)
2473 return xstrdup ("");
2475 bufstr
[transferred
] = 0;
2477 /* Check for embedded NUL bytes; but allow trailing NULs. */
2478 for (i
= strlen (bufstr
); i
< transferred
; i
++)
2481 warning (_("target object %d, annex %s, "
2482 "contained unexpected null characters"),
2483 (int) object
, annex
? annex
: "(none)");
2490 /* Memory transfer methods. */
2493 get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
, gdb_byte
*buf
,
2496 /* This method is used to read from an alternate, non-current
2497 target. This read must bypass the overlay support (as symbols
2498 don't match this target), and GDB's internal cache (wrong cache
2499 for this target). */
2500 if (target_read (ops
, TARGET_OBJECT_RAW_MEMORY
, NULL
, buf
, addr
, len
)
2502 memory_error (TARGET_XFER_E_IO
, addr
);
2506 get_target_memory_unsigned (struct target_ops
*ops
, CORE_ADDR addr
,
2507 int len
, enum bfd_endian byte_order
)
2509 gdb_byte buf
[sizeof (ULONGEST
)];
2511 gdb_assert (len
<= sizeof (buf
));
2512 get_target_memory (ops
, addr
, buf
, len
);
2513 return extract_unsigned_integer (buf
, len
, byte_order
);
2519 target_insert_breakpoint (struct gdbarch
*gdbarch
,
2520 struct bp_target_info
*bp_tgt
)
2522 if (!may_insert_breakpoints
)
2524 warning (_("May not insert breakpoints"));
2528 return current_target
.to_insert_breakpoint (¤t_target
,
2535 target_remove_breakpoint (struct gdbarch
*gdbarch
,
2536 struct bp_target_info
*bp_tgt
)
2538 /* This is kind of a weird case to handle, but the permission might
2539 have been changed after breakpoints were inserted - in which case
2540 we should just take the user literally and assume that any
2541 breakpoints should be left in place. */
2542 if (!may_insert_breakpoints
)
2544 warning (_("May not remove breakpoints"));
2548 return current_target
.to_remove_breakpoint (¤t_target
,
2553 target_info (char *args
, int from_tty
)
2555 struct target_ops
*t
;
2556 int has_all_mem
= 0;
2558 if (symfile_objfile
!= NULL
)
2559 printf_unfiltered (_("Symbols from \"%s\".\n"),
2560 objfile_name (symfile_objfile
));
2562 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2564 if (!(*t
->to_has_memory
) (t
))
2567 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
2570 printf_unfiltered (_("\tWhile running this, "
2571 "GDB does not access memory from...\n"));
2572 printf_unfiltered ("%s:\n", t
->to_longname
);
2573 (t
->to_files_info
) (t
);
2574 has_all_mem
= (*t
->to_has_all_memory
) (t
);
2578 /* This function is called before any new inferior is created, e.g.
2579 by running a program, attaching, or connecting to a target.
2580 It cleans up any state from previous invocations which might
2581 change between runs. This is a subset of what target_preopen
2582 resets (things which might change between targets). */
2585 target_pre_inferior (int from_tty
)
2587 /* Clear out solib state. Otherwise the solib state of the previous
2588 inferior might have survived and is entirely wrong for the new
2589 target. This has been observed on GNU/Linux using glibc 2.3. How
2601 Cannot access memory at address 0xdeadbeef
2604 /* In some OSs, the shared library list is the same/global/shared
2605 across inferiors. If code is shared between processes, so are
2606 memory regions and features. */
2607 if (!gdbarch_has_global_solist (target_gdbarch ()))
2609 no_shared_libraries (NULL
, from_tty
);
2611 invalidate_target_mem_regions ();
2613 target_clear_description ();
2616 agent_capability_invalidate ();
2619 /* Callback for iterate_over_inferiors. Gets rid of the given
2623 dispose_inferior (struct inferior
*inf
, void *args
)
2625 struct thread_info
*thread
;
2627 thread
= any_thread_of_process (inf
->pid
);
2630 switch_to_thread (thread
->ptid
);
2632 /* Core inferiors actually should be detached, not killed. */
2633 if (target_has_execution
)
2636 target_detach (NULL
, 0);
2642 /* This is to be called by the open routine before it does
2646 target_preopen (int from_tty
)
2650 if (have_inferiors ())
2653 || !have_live_inferiors ()
2654 || query (_("A program is being debugged already. Kill it? ")))
2655 iterate_over_inferiors (dispose_inferior
, NULL
);
2657 error (_("Program not killed."));
2660 /* Calling target_kill may remove the target from the stack. But if
2661 it doesn't (which seems like a win for UDI), remove it now. */
2662 /* Leave the exec target, though. The user may be switching from a
2663 live process to a core of the same program. */
2664 pop_all_targets_above (file_stratum
);
2666 target_pre_inferior (from_tty
);
2669 /* Detach a target after doing deferred register stores. */
2672 target_detach (const char *args
, int from_tty
)
2674 struct target_ops
* t
;
2676 if (gdbarch_has_global_breakpoints (target_gdbarch ()))
2677 /* Don't remove global breakpoints here. They're removed on
2678 disconnection from the target. */
2681 /* If we're in breakpoints-always-inserted mode, have to remove
2682 them before detaching. */
2683 remove_breakpoints_pid (ptid_get_pid (inferior_ptid
));
2685 prepare_for_detach ();
2687 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2689 if (t
->to_detach
!= NULL
)
2691 t
->to_detach (t
, args
, from_tty
);
2693 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n",
2699 internal_error (__FILE__
, __LINE__
, _("could not find a target to detach"));
2703 target_disconnect (char *args
, int from_tty
)
2705 struct target_ops
*t
;
2707 /* If we're in breakpoints-always-inserted mode or if breakpoints
2708 are global across processes, we have to remove them before
2710 remove_breakpoints ();
2712 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2713 if (t
->to_disconnect
!= NULL
)
2716 fprintf_unfiltered (gdb_stdlog
, "target_disconnect (%s, %d)\n",
2718 t
->to_disconnect (t
, args
, from_tty
);
2726 target_wait (ptid_t ptid
, struct target_waitstatus
*status
, int options
)
2728 struct target_ops
*t
;
2729 ptid_t retval
= (current_target
.to_wait
) (¤t_target
, ptid
,
2734 char *status_string
;
2735 char *options_string
;
2737 status_string
= target_waitstatus_to_string (status
);
2738 options_string
= target_options_to_string (options
);
2739 fprintf_unfiltered (gdb_stdlog
,
2740 "target_wait (%d, status, options={%s})"
2742 ptid_get_pid (ptid
), options_string
,
2743 ptid_get_pid (retval
), status_string
);
2744 xfree (status_string
);
2745 xfree (options_string
);
2752 target_pid_to_str (ptid_t ptid
)
2754 struct target_ops
*t
;
2756 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2758 if (t
->to_pid_to_str
!= NULL
)
2759 return (*t
->to_pid_to_str
) (t
, ptid
);
2762 return normal_pid_to_str (ptid
);
2766 target_thread_name (struct thread_info
*info
)
2768 struct target_ops
*t
;
2770 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2772 if (t
->to_thread_name
!= NULL
)
2773 return (*t
->to_thread_name
) (info
);
2780 target_resume (ptid_t ptid
, int step
, enum gdb_signal signal
)
2782 struct target_ops
*t
;
2784 target_dcache_invalidate ();
2786 current_target
.to_resume (¤t_target
, ptid
, step
, signal
);
2788 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n",
2789 ptid_get_pid (ptid
),
2790 step
? "step" : "continue",
2791 gdb_signal_to_name (signal
));
2793 registers_changed_ptid (ptid
);
2794 set_executing (ptid
, 1);
2795 set_running (ptid
, 1);
2796 clear_inline_frame_state (ptid
);
2800 target_pass_signals (int numsigs
, unsigned char *pass_signals
)
2802 struct target_ops
*t
;
2804 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2806 if (t
->to_pass_signals
!= NULL
)
2812 fprintf_unfiltered (gdb_stdlog
, "target_pass_signals (%d, {",
2815 for (i
= 0; i
< numsigs
; i
++)
2816 if (pass_signals
[i
])
2817 fprintf_unfiltered (gdb_stdlog
, " %s",
2818 gdb_signal_to_name (i
));
2820 fprintf_unfiltered (gdb_stdlog
, " })\n");
2823 (*t
->to_pass_signals
) (numsigs
, pass_signals
);
2830 target_program_signals (int numsigs
, unsigned char *program_signals
)
2832 struct target_ops
*t
;
2834 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2836 if (t
->to_program_signals
!= NULL
)
2842 fprintf_unfiltered (gdb_stdlog
, "target_program_signals (%d, {",
2845 for (i
= 0; i
< numsigs
; i
++)
2846 if (program_signals
[i
])
2847 fprintf_unfiltered (gdb_stdlog
, " %s",
2848 gdb_signal_to_name (i
));
2850 fprintf_unfiltered (gdb_stdlog
, " })\n");
2853 (*t
->to_program_signals
) (numsigs
, program_signals
);
2859 /* Look through the list of possible targets for a target that can
2863 target_follow_fork (int follow_child
, int detach_fork
)
2865 struct target_ops
*t
;
2867 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2869 if (t
->to_follow_fork
!= NULL
)
2871 int retval
= t
->to_follow_fork (t
, follow_child
, detach_fork
);
2874 fprintf_unfiltered (gdb_stdlog
,
2875 "target_follow_fork (%d, %d) = %d\n",
2876 follow_child
, detach_fork
, retval
);
2881 /* Some target returned a fork event, but did not know how to follow it. */
2882 internal_error (__FILE__
, __LINE__
,
2883 _("could not find a target to follow fork"));
2887 target_mourn_inferior (void)
2889 struct target_ops
*t
;
2891 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2893 if (t
->to_mourn_inferior
!= NULL
)
2895 t
->to_mourn_inferior (t
);
2897 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2899 /* We no longer need to keep handles on any of the object files.
2900 Make sure to release them to avoid unnecessarily locking any
2901 of them while we're not actually debugging. */
2902 bfd_cache_close_all ();
2908 internal_error (__FILE__
, __LINE__
,
2909 _("could not find a target to follow mourn inferior"));
2912 /* Look for a target which can describe architectural features, starting
2913 from TARGET. If we find one, return its description. */
2915 const struct target_desc
*
2916 target_read_description (struct target_ops
*target
)
2918 struct target_ops
*t
;
2920 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
2921 if (t
->to_read_description
!= NULL
)
2923 const struct target_desc
*tdesc
;
2925 tdesc
= t
->to_read_description (t
);
2933 /* The default implementation of to_search_memory.
2934 This implements a basic search of memory, reading target memory and
2935 performing the search here (as opposed to performing the search in on the
2936 target side with, for example, gdbserver). */
2939 simple_search_memory (struct target_ops
*ops
,
2940 CORE_ADDR start_addr
, ULONGEST search_space_len
,
2941 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2942 CORE_ADDR
*found_addrp
)
2944 /* NOTE: also defined in find.c testcase. */
2945 #define SEARCH_CHUNK_SIZE 16000
2946 const unsigned chunk_size
= SEARCH_CHUNK_SIZE
;
2947 /* Buffer to hold memory contents for searching. */
2948 gdb_byte
*search_buf
;
2949 unsigned search_buf_size
;
2950 struct cleanup
*old_cleanups
;
2952 search_buf_size
= chunk_size
+ pattern_len
- 1;
2954 /* No point in trying to allocate a buffer larger than the search space. */
2955 if (search_space_len
< search_buf_size
)
2956 search_buf_size
= search_space_len
;
2958 search_buf
= malloc (search_buf_size
);
2959 if (search_buf
== NULL
)
2960 error (_("Unable to allocate memory to perform the search."));
2961 old_cleanups
= make_cleanup (free_current_contents
, &search_buf
);
2963 /* Prime the search buffer. */
2965 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2966 search_buf
, start_addr
, search_buf_size
) != search_buf_size
)
2968 warning (_("Unable to access %s bytes of target "
2969 "memory at %s, halting search."),
2970 pulongest (search_buf_size
), hex_string (start_addr
));
2971 do_cleanups (old_cleanups
);
2975 /* Perform the search.
2977 The loop is kept simple by allocating [N + pattern-length - 1] bytes.
2978 When we've scanned N bytes we copy the trailing bytes to the start and
2979 read in another N bytes. */
2981 while (search_space_len
>= pattern_len
)
2983 gdb_byte
*found_ptr
;
2984 unsigned nr_search_bytes
= min (search_space_len
, search_buf_size
);
2986 found_ptr
= memmem (search_buf
, nr_search_bytes
,
2987 pattern
, pattern_len
);
2989 if (found_ptr
!= NULL
)
2991 CORE_ADDR found_addr
= start_addr
+ (found_ptr
- search_buf
);
2993 *found_addrp
= found_addr
;
2994 do_cleanups (old_cleanups
);
2998 /* Not found in this chunk, skip to next chunk. */
3000 /* Don't let search_space_len wrap here, it's unsigned. */
3001 if (search_space_len
>= chunk_size
)
3002 search_space_len
-= chunk_size
;
3004 search_space_len
= 0;
3006 if (search_space_len
>= pattern_len
)
3008 unsigned keep_len
= search_buf_size
- chunk_size
;
3009 CORE_ADDR read_addr
= start_addr
+ chunk_size
+ keep_len
;
3012 /* Copy the trailing part of the previous iteration to the front
3013 of the buffer for the next iteration. */
3014 gdb_assert (keep_len
== pattern_len
- 1);
3015 memcpy (search_buf
, search_buf
+ chunk_size
, keep_len
);
3017 nr_to_read
= min (search_space_len
- keep_len
, chunk_size
);
3019 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
3020 search_buf
+ keep_len
, read_addr
,
3021 nr_to_read
) != nr_to_read
)
3023 warning (_("Unable to access %s bytes of target "
3024 "memory at %s, halting search."),
3025 plongest (nr_to_read
),
3026 hex_string (read_addr
));
3027 do_cleanups (old_cleanups
);
3031 start_addr
+= chunk_size
;
3037 do_cleanups (old_cleanups
);
3041 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
3042 sequence of bytes in PATTERN with length PATTERN_LEN.
3044 The result is 1 if found, 0 if not found, and -1 if there was an error
3045 requiring halting of the search (e.g. memory read error).
3046 If the pattern is found the address is recorded in FOUND_ADDRP. */
3049 target_search_memory (CORE_ADDR start_addr
, ULONGEST search_space_len
,
3050 const gdb_byte
*pattern
, ULONGEST pattern_len
,
3051 CORE_ADDR
*found_addrp
)
3053 struct target_ops
*t
;
3056 /* We don't use INHERIT to set current_target.to_search_memory,
3057 so we have to scan the target stack and handle targetdebug
3061 fprintf_unfiltered (gdb_stdlog
, "target_search_memory (%s, ...)\n",
3062 hex_string (start_addr
));
3064 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3065 if (t
->to_search_memory
!= NULL
)
3070 found
= t
->to_search_memory (t
, start_addr
, search_space_len
,
3071 pattern
, pattern_len
, found_addrp
);
3075 /* If a special version of to_search_memory isn't available, use the
3077 found
= simple_search_memory (current_target
.beneath
,
3078 start_addr
, search_space_len
,
3079 pattern
, pattern_len
, found_addrp
);
3083 fprintf_unfiltered (gdb_stdlog
, " = %d\n", found
);
3088 /* Look through the currently pushed targets. If none of them will
3089 be able to restart the currently running process, issue an error
3093 target_require_runnable (void)
3095 struct target_ops
*t
;
3097 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
3099 /* If this target knows how to create a new program, then
3100 assume we will still be able to after killing the current
3101 one. Either killing and mourning will not pop T, or else
3102 find_default_run_target will find it again. */
3103 if (t
->to_create_inferior
!= NULL
)
3106 /* Do not worry about thread_stratum targets that can not
3107 create inferiors. Assume they will be pushed again if
3108 necessary, and continue to the process_stratum. */
3109 if (t
->to_stratum
== thread_stratum
3110 || t
->to_stratum
== arch_stratum
)
3113 error (_("The \"%s\" target does not support \"run\". "
3114 "Try \"help target\" or \"continue\"."),
3118 /* This function is only called if the target is running. In that
3119 case there should have been a process_stratum target and it
3120 should either know how to create inferiors, or not... */
3121 internal_error (__FILE__
, __LINE__
, _("No targets found"));
3124 /* Look through the list of possible targets for a target that can
3125 execute a run or attach command without any other data. This is
3126 used to locate the default process stratum.
3128 If DO_MESG is not NULL, the result is always valid (error() is
3129 called for errors); else, return NULL on error. */
3131 static struct target_ops
*
3132 find_default_run_target (char *do_mesg
)
3134 struct target_ops
**t
;
3135 struct target_ops
*runable
= NULL
;
3140 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
3143 if ((*t
)->to_can_run
&& target_can_run (*t
))
3153 error (_("Don't know how to %s. Try \"help target\"."), do_mesg
);
3162 find_default_attach (struct target_ops
*ops
, char *args
, int from_tty
)
3164 struct target_ops
*t
;
3166 t
= find_default_run_target ("attach");
3167 (t
->to_attach
) (t
, args
, from_tty
);
3172 find_default_create_inferior (struct target_ops
*ops
,
3173 char *exec_file
, char *allargs
, char **env
,
3176 struct target_ops
*t
;
3178 t
= find_default_run_target ("run");
3179 (t
->to_create_inferior
) (t
, exec_file
, allargs
, env
, from_tty
);
3184 find_default_can_async_p (struct target_ops
*ignore
)
3186 struct target_ops
*t
;
3188 /* This may be called before the target is pushed on the stack;
3189 look for the default process stratum. If there's none, gdb isn't
3190 configured with a native debugger, and target remote isn't
3192 t
= find_default_run_target (NULL
);
3193 if (t
&& t
->to_can_async_p
!= delegate_can_async_p
)
3194 return (t
->to_can_async_p
) (t
);
3199 find_default_is_async_p (struct target_ops
*ignore
)
3201 struct target_ops
*t
;
3203 /* This may be called before the target is pushed on the stack;
3204 look for the default process stratum. If there's none, gdb isn't
3205 configured with a native debugger, and target remote isn't
3207 t
= find_default_run_target (NULL
);
3208 if (t
&& t
->to_is_async_p
!= delegate_is_async_p
)
3209 return (t
->to_is_async_p
) (t
);
3214 find_default_supports_non_stop (void)
3216 struct target_ops
*t
;
3218 t
= find_default_run_target (NULL
);
3219 if (t
&& t
->to_supports_non_stop
)
3220 return (t
->to_supports_non_stop
) ();
3225 target_supports_non_stop (void)
3227 struct target_ops
*t
;
3229 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3230 if (t
->to_supports_non_stop
)
3231 return t
->to_supports_non_stop ();
3236 /* Implement the "info proc" command. */
3239 target_info_proc (char *args
, enum info_proc_what what
)
3241 struct target_ops
*t
;
3243 /* If we're already connected to something that can get us OS
3244 related data, use it. Otherwise, try using the native
3246 if (current_target
.to_stratum
>= process_stratum
)
3247 t
= current_target
.beneath
;
3249 t
= find_default_run_target (NULL
);
3251 for (; t
!= NULL
; t
= t
->beneath
)
3253 if (t
->to_info_proc
!= NULL
)
3255 t
->to_info_proc (t
, args
, what
);
3258 fprintf_unfiltered (gdb_stdlog
,
3259 "target_info_proc (\"%s\", %d)\n", args
, what
);
3269 find_default_supports_disable_randomization (void)
3271 struct target_ops
*t
;
3273 t
= find_default_run_target (NULL
);
3274 if (t
&& t
->to_supports_disable_randomization
)
3275 return (t
->to_supports_disable_randomization
) ();
3280 target_supports_disable_randomization (void)
3282 struct target_ops
*t
;
3284 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
3285 if (t
->to_supports_disable_randomization
)
3286 return t
->to_supports_disable_randomization ();
3292 target_get_osdata (const char *type
)
3294 struct target_ops
*t
;
3296 /* If we're already connected to something that can get us OS
3297 related data, use it. Otherwise, try using the native
3299 if (current_target
.to_stratum
>= process_stratum
)
3300 t
= current_target
.beneath
;
3302 t
= find_default_run_target ("get OS data");
3307 return target_read_stralloc (t
, TARGET_OBJECT_OSDATA
, type
);
3310 /* Determine the current address space of thread PTID. */
3312 struct address_space
*
3313 target_thread_address_space (ptid_t ptid
)
3315 struct address_space
*aspace
;
3316 struct inferior
*inf
;
3317 struct target_ops
*t
;
3319 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3321 if (t
->to_thread_address_space
!= NULL
)
3323 aspace
= t
->to_thread_address_space (t
, ptid
);
3324 gdb_assert (aspace
);
3327 fprintf_unfiltered (gdb_stdlog
,
3328 "target_thread_address_space (%s) = %d\n",
3329 target_pid_to_str (ptid
),
3330 address_space_num (aspace
));
3335 /* Fall-back to the "main" address space of the inferior. */
3336 inf
= find_inferior_pid (ptid_get_pid (ptid
));
3338 if (inf
== NULL
|| inf
->aspace
== NULL
)
3339 internal_error (__FILE__
, __LINE__
,
3340 _("Can't determine the current "
3341 "address space of thread %s\n"),
3342 target_pid_to_str (ptid
));
3348 /* Target file operations. */
3350 static struct target_ops
*
3351 default_fileio_target (void)
3353 /* If we're already connected to something that can perform
3354 file I/O, use it. Otherwise, try using the native target. */
3355 if (current_target
.to_stratum
>= process_stratum
)
3356 return current_target
.beneath
;
3358 return find_default_run_target ("file I/O");
3361 /* Open FILENAME on the target, using FLAGS and MODE. Return a
3362 target file descriptor, or -1 if an error occurs (and set
3365 target_fileio_open (const char *filename
, int flags
, int mode
,
3368 struct target_ops
*t
;
3370 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3372 if (t
->to_fileio_open
!= NULL
)
3374 int fd
= t
->to_fileio_open (filename
, flags
, mode
, target_errno
);
3377 fprintf_unfiltered (gdb_stdlog
,
3378 "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n",
3379 filename
, flags
, mode
,
3380 fd
, fd
!= -1 ? 0 : *target_errno
);
3385 *target_errno
= FILEIO_ENOSYS
;
3389 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
3390 Return the number of bytes written, or -1 if an error occurs
3391 (and set *TARGET_ERRNO). */
3393 target_fileio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
3394 ULONGEST offset
, int *target_errno
)
3396 struct target_ops
*t
;
3398 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3400 if (t
->to_fileio_pwrite
!= NULL
)
3402 int ret
= t
->to_fileio_pwrite (fd
, write_buf
, len
, offset
,
3406 fprintf_unfiltered (gdb_stdlog
,
3407 "target_fileio_pwrite (%d,...,%d,%s) "
3409 fd
, len
, pulongest (offset
),
3410 ret
, ret
!= -1 ? 0 : *target_errno
);
3415 *target_errno
= FILEIO_ENOSYS
;
3419 /* Read up to LEN bytes FD on the target into READ_BUF.
3420 Return the number of bytes read, or -1 if an error occurs
3421 (and set *TARGET_ERRNO). */
3423 target_fileio_pread (int fd
, gdb_byte
*read_buf
, int len
,
3424 ULONGEST offset
, int *target_errno
)
3426 struct target_ops
*t
;
3428 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3430 if (t
->to_fileio_pread
!= NULL
)
3432 int ret
= t
->to_fileio_pread (fd
, read_buf
, len
, offset
,
3436 fprintf_unfiltered (gdb_stdlog
,
3437 "target_fileio_pread (%d,...,%d,%s) "
3439 fd
, len
, pulongest (offset
),
3440 ret
, ret
!= -1 ? 0 : *target_errno
);
3445 *target_errno
= FILEIO_ENOSYS
;
3449 /* Close FD on the target. Return 0, or -1 if an error occurs
3450 (and set *TARGET_ERRNO). */
3452 target_fileio_close (int fd
, int *target_errno
)
3454 struct target_ops
*t
;
3456 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3458 if (t
->to_fileio_close
!= NULL
)
3460 int ret
= t
->to_fileio_close (fd
, target_errno
);
3463 fprintf_unfiltered (gdb_stdlog
,
3464 "target_fileio_close (%d) = %d (%d)\n",
3465 fd
, ret
, ret
!= -1 ? 0 : *target_errno
);
3470 *target_errno
= FILEIO_ENOSYS
;
3474 /* Unlink FILENAME on the target. Return 0, or -1 if an error
3475 occurs (and set *TARGET_ERRNO). */
3477 target_fileio_unlink (const char *filename
, int *target_errno
)
3479 struct target_ops
*t
;
3481 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3483 if (t
->to_fileio_unlink
!= NULL
)
3485 int ret
= t
->to_fileio_unlink (filename
, target_errno
);
3488 fprintf_unfiltered (gdb_stdlog
,
3489 "target_fileio_unlink (%s) = %d (%d)\n",
3490 filename
, ret
, ret
!= -1 ? 0 : *target_errno
);
3495 *target_errno
= FILEIO_ENOSYS
;
3499 /* Read value of symbolic link FILENAME on the target. Return a
3500 null-terminated string allocated via xmalloc, or NULL if an error
3501 occurs (and set *TARGET_ERRNO). */
3503 target_fileio_readlink (const char *filename
, int *target_errno
)
3505 struct target_ops
*t
;
3507 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
3509 if (t
->to_fileio_readlink
!= NULL
)
3511 char *ret
= t
->to_fileio_readlink (filename
, target_errno
);
3514 fprintf_unfiltered (gdb_stdlog
,
3515 "target_fileio_readlink (%s) = %s (%d)\n",
3516 filename
, ret
? ret
: "(nil)",
3517 ret
? 0 : *target_errno
);
3522 *target_errno
= FILEIO_ENOSYS
;
3527 target_fileio_close_cleanup (void *opaque
)
3529 int fd
= *(int *) opaque
;
3532 target_fileio_close (fd
, &target_errno
);
3535 /* Read target file FILENAME. Store the result in *BUF_P and
3536 return the size of the transferred data. PADDING additional bytes are
3537 available in *BUF_P. This is a helper function for
3538 target_fileio_read_alloc; see the declaration of that function for more
3542 target_fileio_read_alloc_1 (const char *filename
,
3543 gdb_byte
**buf_p
, int padding
)
3545 struct cleanup
*close_cleanup
;
3546 size_t buf_alloc
, buf_pos
;
3552 fd
= target_fileio_open (filename
, FILEIO_O_RDONLY
, 0700, &target_errno
);
3556 close_cleanup
= make_cleanup (target_fileio_close_cleanup
, &fd
);
3558 /* Start by reading up to 4K at a time. The target will throttle
3559 this number down if necessary. */
3561 buf
= xmalloc (buf_alloc
);
3565 n
= target_fileio_pread (fd
, &buf
[buf_pos
],
3566 buf_alloc
- buf_pos
- padding
, buf_pos
,
3570 /* An error occurred. */
3571 do_cleanups (close_cleanup
);
3577 /* Read all there was. */
3578 do_cleanups (close_cleanup
);
3588 /* If the buffer is filling up, expand it. */
3589 if (buf_alloc
< buf_pos
* 2)
3592 buf
= xrealloc (buf
, buf_alloc
);
3599 /* Read target file FILENAME. Store the result in *BUF_P and return
3600 the size of the transferred data. See the declaration in "target.h"
3601 function for more information about the return value. */
3604 target_fileio_read_alloc (const char *filename
, gdb_byte
**buf_p
)
3606 return target_fileio_read_alloc_1 (filename
, buf_p
, 0);
3609 /* Read target file FILENAME. The result is NUL-terminated and
3610 returned as a string, allocated using xmalloc. If an error occurs
3611 or the transfer is unsupported, NULL is returned. Empty objects
3612 are returned as allocated but empty strings. A warning is issued
3613 if the result contains any embedded NUL bytes. */
3616 target_fileio_read_stralloc (const char *filename
)
3620 LONGEST i
, transferred
;
3622 transferred
= target_fileio_read_alloc_1 (filename
, &buffer
, 1);
3623 bufstr
= (char *) buffer
;
3625 if (transferred
< 0)
3628 if (transferred
== 0)
3629 return xstrdup ("");
3631 bufstr
[transferred
] = 0;
3633 /* Check for embedded NUL bytes; but allow trailing NULs. */
3634 for (i
= strlen (bufstr
); i
< transferred
; i
++)
3637 warning (_("target file %s "
3638 "contained unexpected null characters"),
3648 default_region_ok_for_hw_watchpoint (struct target_ops
*self
,
3649 CORE_ADDR addr
, int len
)
3651 return (len
<= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT
);
3655 default_watchpoint_addr_within_range (struct target_ops
*target
,
3657 CORE_ADDR start
, int length
)
3659 return addr
>= start
&& addr
< start
+ length
;
3662 static struct gdbarch
*
3663 default_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
3665 return target_gdbarch ();
3681 return_minus_one (void)
3693 * Find the next target down the stack from the specified target.
3697 find_target_beneath (struct target_ops
*t
)
3705 find_target_at (enum strata stratum
)
3707 struct target_ops
*t
;
3709 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3710 if (t
->to_stratum
== stratum
)
3717 /* The inferior process has died. Long live the inferior! */
3720 generic_mourn_inferior (void)
3724 ptid
= inferior_ptid
;
3725 inferior_ptid
= null_ptid
;
3727 /* Mark breakpoints uninserted in case something tries to delete a
3728 breakpoint while we delete the inferior's threads (which would
3729 fail, since the inferior is long gone). */
3730 mark_breakpoints_out ();
3732 if (!ptid_equal (ptid
, null_ptid
))
3734 int pid
= ptid_get_pid (ptid
);
3735 exit_inferior (pid
);
3738 /* Note this wipes step-resume breakpoints, so needs to be done
3739 after exit_inferior, which ends up referencing the step-resume
3740 breakpoints through clear_thread_inferior_resources. */
3741 breakpoint_init_inferior (inf_exited
);
3743 registers_changed ();
3745 reopen_exec_file ();
3746 reinit_frame_cache ();
3748 if (deprecated_detach_hook
)
3749 deprecated_detach_hook ();
3752 /* Convert a normal process ID to a string. Returns the string in a
3756 normal_pid_to_str (ptid_t ptid
)
3758 static char buf
[32];
3760 xsnprintf (buf
, sizeof buf
, "process %d", ptid_get_pid (ptid
));
3765 dummy_pid_to_str (struct target_ops
*ops
, ptid_t ptid
)
3767 return normal_pid_to_str (ptid
);
3770 /* Error-catcher for target_find_memory_regions. */
3772 dummy_find_memory_regions (find_memory_region_ftype ignore1
, void *ignore2
)
3774 error (_("Command not implemented for this target."));
3778 /* Error-catcher for target_make_corefile_notes. */
3780 dummy_make_corefile_notes (bfd
*ignore1
, int *ignore2
)
3782 error (_("Command not implemented for this target."));
3786 /* Error-catcher for target_get_bookmark. */
3788 dummy_get_bookmark (char *ignore1
, int ignore2
)
3794 /* Error-catcher for target_goto_bookmark. */
3796 dummy_goto_bookmark (gdb_byte
*ignore
, int from_tty
)
3801 /* Set up the handful of non-empty slots needed by the dummy target
3805 init_dummy_target (void)
3807 dummy_target
.to_shortname
= "None";
3808 dummy_target
.to_longname
= "None";
3809 dummy_target
.to_doc
= "";
3810 dummy_target
.to_attach
= find_default_attach
;
3811 dummy_target
.to_detach
=
3812 (void (*)(struct target_ops
*, const char *, int))target_ignore
;
3813 dummy_target
.to_create_inferior
= find_default_create_inferior
;
3814 dummy_target
.to_supports_non_stop
= find_default_supports_non_stop
;
3815 dummy_target
.to_supports_disable_randomization
3816 = find_default_supports_disable_randomization
;
3817 dummy_target
.to_pid_to_str
= dummy_pid_to_str
;
3818 dummy_target
.to_stratum
= dummy_stratum
;
3819 dummy_target
.to_find_memory_regions
= dummy_find_memory_regions
;
3820 dummy_target
.to_make_corefile_notes
= dummy_make_corefile_notes
;
3821 dummy_target
.to_get_bookmark
= dummy_get_bookmark
;
3822 dummy_target
.to_goto_bookmark
= dummy_goto_bookmark
;
3823 dummy_target
.to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
3824 dummy_target
.to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
3825 dummy_target
.to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
3826 dummy_target
.to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
3827 dummy_target
.to_has_execution
3828 = (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
3829 dummy_target
.to_magic
= OPS_MAGIC
;
3831 install_dummy_methods (&dummy_target
);
3835 debug_to_open (char *args
, int from_tty
)
3837 debug_target
.to_open (args
, from_tty
);
3839 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
3843 target_close (struct target_ops
*targ
)
3845 gdb_assert (!target_is_pushed (targ
));
3847 if (targ
->to_xclose
!= NULL
)
3848 targ
->to_xclose (targ
);
3849 else if (targ
->to_close
!= NULL
)
3850 targ
->to_close (targ
);
3853 fprintf_unfiltered (gdb_stdlog
, "target_close ()\n");
3857 target_attach (char *args
, int from_tty
)
3859 struct target_ops
*t
;
3861 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3863 if (t
->to_attach
!= NULL
)
3865 t
->to_attach (t
, args
, from_tty
);
3867 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n",
3873 internal_error (__FILE__
, __LINE__
,
3874 _("could not find a target to attach"));
3878 target_thread_alive (ptid_t ptid
)
3880 struct target_ops
*t
;
3882 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3884 if (t
->to_thread_alive
!= NULL
)
3888 retval
= t
->to_thread_alive (t
, ptid
);
3890 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
3891 ptid_get_pid (ptid
), retval
);
3901 target_find_new_threads (void)
3903 struct target_ops
*t
;
3905 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3907 if (t
->to_find_new_threads
!= NULL
)
3909 t
->to_find_new_threads (t
);
3911 fprintf_unfiltered (gdb_stdlog
, "target_find_new_threads ()\n");
3919 target_stop (ptid_t ptid
)
3923 warning (_("May not interrupt or stop the target, ignoring attempt"));
3927 (*current_target
.to_stop
) (ptid
);
3931 debug_to_post_attach (struct target_ops
*self
, int pid
)
3933 debug_target
.to_post_attach (&debug_target
, pid
);
3935 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
3938 /* Concatenate ELEM to LIST, a comma separate list, and return the
3939 result. The LIST incoming argument is released. */
3942 str_comma_list_concat_elem (char *list
, const char *elem
)
3945 return xstrdup (elem
);
3947 return reconcat (list
, list
, ", ", elem
, (char *) NULL
);
3950 /* Helper for target_options_to_string. If OPT is present in
3951 TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET.
3952 Returns the new resulting string. OPT is removed from
3956 do_option (int *target_options
, char *ret
,
3957 int opt
, char *opt_str
)
3959 if ((*target_options
& opt
) != 0)
3961 ret
= str_comma_list_concat_elem (ret
, opt_str
);
3962 *target_options
&= ~opt
;
3969 target_options_to_string (int target_options
)
3973 #define DO_TARG_OPTION(OPT) \
3974 ret = do_option (&target_options, ret, OPT, #OPT)
3976 DO_TARG_OPTION (TARGET_WNOHANG
);
3978 if (target_options
!= 0)
3979 ret
= str_comma_list_concat_elem (ret
, "unknown???");
3987 debug_print_register (const char * func
,
3988 struct regcache
*regcache
, int regno
)
3990 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
3992 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
3993 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
)
3994 && gdbarch_register_name (gdbarch
, regno
) != NULL
3995 && gdbarch_register_name (gdbarch
, regno
)[0] != '\0')
3996 fprintf_unfiltered (gdb_stdlog
, "(%s)",
3997 gdbarch_register_name (gdbarch
, regno
));
3999 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
4000 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
))
4002 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
4003 int i
, size
= register_size (gdbarch
, regno
);
4004 gdb_byte buf
[MAX_REGISTER_SIZE
];
4006 regcache_raw_collect (regcache
, regno
, buf
);
4007 fprintf_unfiltered (gdb_stdlog
, " = ");
4008 for (i
= 0; i
< size
; i
++)
4010 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
4012 if (size
<= sizeof (LONGEST
))
4014 ULONGEST val
= extract_unsigned_integer (buf
, size
, byte_order
);
4016 fprintf_unfiltered (gdb_stdlog
, " %s %s",
4017 core_addr_to_string_nz (val
), plongest (val
));
4020 fprintf_unfiltered (gdb_stdlog
, "\n");
4024 target_fetch_registers (struct regcache
*regcache
, int regno
)
4026 struct target_ops
*t
;
4028 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4030 if (t
->to_fetch_registers
!= NULL
)
4032 t
->to_fetch_registers (t
, regcache
, regno
);
4034 debug_print_register ("target_fetch_registers", regcache
, regno
);
4041 target_store_registers (struct regcache
*regcache
, int regno
)
4043 struct target_ops
*t
;
4045 if (!may_write_registers
)
4046 error (_("Writing to registers is not allowed (regno %d)"), regno
);
4048 current_target
.to_store_registers (¤t_target
, regcache
, regno
);
4051 debug_print_register ("target_store_registers", regcache
, regno
);
4056 target_core_of_thread (ptid_t ptid
)
4058 struct target_ops
*t
;
4060 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4062 if (t
->to_core_of_thread
!= NULL
)
4064 int retval
= t
->to_core_of_thread (t
, ptid
);
4067 fprintf_unfiltered (gdb_stdlog
,
4068 "target_core_of_thread (%d) = %d\n",
4069 ptid_get_pid (ptid
), retval
);
4078 target_verify_memory (const gdb_byte
*data
, CORE_ADDR memaddr
, ULONGEST size
)
4080 struct target_ops
*t
;
4082 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4084 if (t
->to_verify_memory
!= NULL
)
4086 int retval
= t
->to_verify_memory (t
, data
, memaddr
, size
);
4089 fprintf_unfiltered (gdb_stdlog
,
4090 "target_verify_memory (%s, %s) = %d\n",
4091 paddress (target_gdbarch (), memaddr
),
4101 /* The documentation for this function is in its prototype declaration in
4105 target_insert_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4107 struct target_ops
*t
;
4109 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4110 if (t
->to_insert_mask_watchpoint
!= NULL
)
4114 ret
= t
->to_insert_mask_watchpoint (t
, addr
, mask
, rw
);
4117 fprintf_unfiltered (gdb_stdlog
, "\
4118 target_insert_mask_watchpoint (%s, %s, %d) = %d\n",
4119 core_addr_to_string (addr
),
4120 core_addr_to_string (mask
), rw
, ret
);
4128 /* The documentation for this function is in its prototype declaration in
4132 target_remove_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
4134 struct target_ops
*t
;
4136 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4137 if (t
->to_remove_mask_watchpoint
!= NULL
)
4141 ret
= t
->to_remove_mask_watchpoint (t
, addr
, mask
, rw
);
4144 fprintf_unfiltered (gdb_stdlog
, "\
4145 target_remove_mask_watchpoint (%s, %s, %d) = %d\n",
4146 core_addr_to_string (addr
),
4147 core_addr_to_string (mask
), rw
, ret
);
4155 /* The documentation for this function is in its prototype declaration
4159 target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
)
4161 struct target_ops
*t
;
4163 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4164 if (t
->to_masked_watch_num_registers
!= NULL
)
4165 return t
->to_masked_watch_num_registers (t
, addr
, mask
);
4170 /* The documentation for this function is in its prototype declaration
4174 target_ranged_break_num_registers (void)
4176 struct target_ops
*t
;
4178 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4179 if (t
->to_ranged_break_num_registers
!= NULL
)
4180 return t
->to_ranged_break_num_registers (t
);
4187 struct btrace_target_info
*
4188 target_enable_btrace (ptid_t ptid
)
4190 struct target_ops
*t
;
4192 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4193 if (t
->to_enable_btrace
!= NULL
)
4194 return t
->to_enable_btrace (ptid
);
4203 target_disable_btrace (struct btrace_target_info
*btinfo
)
4205 struct target_ops
*t
;
4207 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4208 if (t
->to_disable_btrace
!= NULL
)
4210 t
->to_disable_btrace (btinfo
);
4220 target_teardown_btrace (struct btrace_target_info
*btinfo
)
4222 struct target_ops
*t
;
4224 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4225 if (t
->to_teardown_btrace
!= NULL
)
4227 t
->to_teardown_btrace (btinfo
);
4237 target_read_btrace (VEC (btrace_block_s
) **btrace
,
4238 struct btrace_target_info
*btinfo
,
4239 enum btrace_read_type type
)
4241 struct target_ops
*t
;
4243 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4244 if (t
->to_read_btrace
!= NULL
)
4245 return t
->to_read_btrace (btrace
, btinfo
, type
);
4248 return BTRACE_ERR_NOT_SUPPORTED
;
4254 target_stop_recording (void)
4256 struct target_ops
*t
;
4258 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4259 if (t
->to_stop_recording
!= NULL
)
4261 t
->to_stop_recording ();
4265 /* This is optional. */
4271 target_info_record (void)
4273 struct target_ops
*t
;
4275 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4276 if (t
->to_info_record
!= NULL
)
4278 t
->to_info_record ();
4288 target_save_record (const char *filename
)
4290 struct target_ops
*t
;
4292 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4293 if (t
->to_save_record
!= NULL
)
4295 t
->to_save_record (filename
);
4305 target_supports_delete_record (void)
4307 struct target_ops
*t
;
4309 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4310 if (t
->to_delete_record
!= NULL
)
4319 target_delete_record (void)
4321 struct target_ops
*t
;
4323 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4324 if (t
->to_delete_record
!= NULL
)
4326 t
->to_delete_record ();
4336 target_record_is_replaying (void)
4338 struct target_ops
*t
;
4340 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4341 if (t
->to_record_is_replaying
!= NULL
)
4342 return t
->to_record_is_replaying ();
4350 target_goto_record_begin (void)
4352 struct target_ops
*t
;
4354 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4355 if (t
->to_goto_record_begin
!= NULL
)
4357 t
->to_goto_record_begin ();
4367 target_goto_record_end (void)
4369 struct target_ops
*t
;
4371 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4372 if (t
->to_goto_record_end
!= NULL
)
4374 t
->to_goto_record_end ();
4384 target_goto_record (ULONGEST insn
)
4386 struct target_ops
*t
;
4388 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4389 if (t
->to_goto_record
!= NULL
)
4391 t
->to_goto_record (insn
);
4401 target_insn_history (int size
, int flags
)
4403 struct target_ops
*t
;
4405 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4406 if (t
->to_insn_history
!= NULL
)
4408 t
->to_insn_history (size
, flags
);
4418 target_insn_history_from (ULONGEST from
, int size
, int flags
)
4420 struct target_ops
*t
;
4422 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4423 if (t
->to_insn_history_from
!= NULL
)
4425 t
->to_insn_history_from (from
, size
, flags
);
4435 target_insn_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4437 struct target_ops
*t
;
4439 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4440 if (t
->to_insn_history_range
!= NULL
)
4442 t
->to_insn_history_range (begin
, end
, flags
);
4452 target_call_history (int size
, int flags
)
4454 struct target_ops
*t
;
4456 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4457 if (t
->to_call_history
!= NULL
)
4459 t
->to_call_history (size
, flags
);
4469 target_call_history_from (ULONGEST begin
, int size
, int flags
)
4471 struct target_ops
*t
;
4473 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4474 if (t
->to_call_history_from
!= NULL
)
4476 t
->to_call_history_from (begin
, size
, flags
);
4486 target_call_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
4488 struct target_ops
*t
;
4490 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4491 if (t
->to_call_history_range
!= NULL
)
4493 t
->to_call_history_range (begin
, end
, flags
);
4501 debug_to_prepare_to_store (struct target_ops
*self
, struct regcache
*regcache
)
4503 debug_target
.to_prepare_to_store (&debug_target
, regcache
);
4505 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
4510 const struct frame_unwind
*
4511 target_get_unwinder (void)
4513 struct target_ops
*t
;
4515 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4516 if (t
->to_get_unwinder
!= NULL
)
4517 return t
->to_get_unwinder
;
4524 const struct frame_unwind
*
4525 target_get_tailcall_unwinder (void)
4527 struct target_ops
*t
;
4529 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
4530 if (t
->to_get_tailcall_unwinder
!= NULL
)
4531 return t
->to_get_tailcall_unwinder
;
4539 forward_target_decr_pc_after_break (struct target_ops
*ops
,
4540 struct gdbarch
*gdbarch
)
4542 for (; ops
!= NULL
; ops
= ops
->beneath
)
4543 if (ops
->to_decr_pc_after_break
!= NULL
)
4544 return ops
->to_decr_pc_after_break (ops
, gdbarch
);
4546 return gdbarch_decr_pc_after_break (gdbarch
);
4552 target_decr_pc_after_break (struct gdbarch
*gdbarch
)
4554 return forward_target_decr_pc_after_break (current_target
.beneath
, gdbarch
);
4558 deprecated_debug_xfer_memory (CORE_ADDR memaddr
, bfd_byte
*myaddr
, int len
,
4559 int write
, struct mem_attrib
*attrib
,
4560 struct target_ops
*target
)
4564 retval
= debug_target
.deprecated_xfer_memory (memaddr
, myaddr
, len
, write
,
4567 fprintf_unfiltered (gdb_stdlog
,
4568 "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d",
4569 paddress (target_gdbarch (), memaddr
), len
,
4570 write
? "write" : "read", retval
);
4576 fputs_unfiltered (", bytes =", gdb_stdlog
);
4577 for (i
= 0; i
< retval
; i
++)
4579 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
4581 if (targetdebug
< 2 && i
> 0)
4583 fprintf_unfiltered (gdb_stdlog
, " ...");
4586 fprintf_unfiltered (gdb_stdlog
, "\n");
4589 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
4593 fputc_unfiltered ('\n', gdb_stdlog
);
4599 debug_to_files_info (struct target_ops
*target
)
4601 debug_target
.to_files_info (target
);
4603 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
4607 debug_to_insert_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4608 struct bp_target_info
*bp_tgt
)
4612 retval
= debug_target
.to_insert_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4614 fprintf_unfiltered (gdb_stdlog
,
4615 "target_insert_breakpoint (%s, xxx) = %ld\n",
4616 core_addr_to_string (bp_tgt
->placed_address
),
4617 (unsigned long) retval
);
4622 debug_to_remove_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
4623 struct bp_target_info
*bp_tgt
)
4627 retval
= debug_target
.to_remove_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
4629 fprintf_unfiltered (gdb_stdlog
,
4630 "target_remove_breakpoint (%s, xxx) = %ld\n",
4631 core_addr_to_string (bp_tgt
->placed_address
),
4632 (unsigned long) retval
);
4637 debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
4638 int type
, int cnt
, int from_tty
)
4642 retval
= debug_target
.to_can_use_hw_breakpoint (&debug_target
,
4643 type
, cnt
, from_tty
);
4645 fprintf_unfiltered (gdb_stdlog
,
4646 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
4647 (unsigned long) type
,
4648 (unsigned long) cnt
,
4649 (unsigned long) from_tty
,
4650 (unsigned long) retval
);
4655 debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
4656 CORE_ADDR addr
, int len
)
4660 retval
= debug_target
.to_region_ok_for_hw_watchpoint (&debug_target
,
4663 fprintf_unfiltered (gdb_stdlog
,
4664 "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n",
4665 core_addr_to_string (addr
), (unsigned long) len
,
4666 core_addr_to_string (retval
));
4671 debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
4672 CORE_ADDR addr
, int len
, int rw
,
4673 struct expression
*cond
)
4677 retval
= debug_target
.to_can_accel_watchpoint_condition (&debug_target
,
4681 fprintf_unfiltered (gdb_stdlog
,
4682 "target_can_accel_watchpoint_condition "
4683 "(%s, %d, %d, %s) = %ld\n",
4684 core_addr_to_string (addr
), len
, rw
,
4685 host_address_to_string (cond
), (unsigned long) retval
);
4690 debug_to_stopped_by_watchpoint (struct target_ops
*ops
)
4694 retval
= debug_target
.to_stopped_by_watchpoint (&debug_target
);
4696 fprintf_unfiltered (gdb_stdlog
,
4697 "target_stopped_by_watchpoint () = %ld\n",
4698 (unsigned long) retval
);
4703 debug_to_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr
)
4707 retval
= debug_target
.to_stopped_data_address (target
, addr
);
4709 fprintf_unfiltered (gdb_stdlog
,
4710 "target_stopped_data_address ([%s]) = %ld\n",
4711 core_addr_to_string (*addr
),
4712 (unsigned long)retval
);
4717 debug_to_watchpoint_addr_within_range (struct target_ops
*target
,
4719 CORE_ADDR start
, int length
)
4723 retval
= debug_target
.to_watchpoint_addr_within_range (target
, addr
,
4726 fprintf_filtered (gdb_stdlog
,
4727 "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n",
4728 core_addr_to_string (addr
), core_addr_to_string (start
),
4734 debug_to_insert_hw_breakpoint (struct target_ops
*self
,
4735 struct gdbarch
*gdbarch
,
4736 struct bp_target_info
*bp_tgt
)
4740 retval
= debug_target
.to_insert_hw_breakpoint (&debug_target
,
4743 fprintf_unfiltered (gdb_stdlog
,
4744 "target_insert_hw_breakpoint (%s, xxx) = %ld\n",
4745 core_addr_to_string (bp_tgt
->placed_address
),
4746 (unsigned long) retval
);
4751 debug_to_remove_hw_breakpoint (struct target_ops
*self
,
4752 struct gdbarch
*gdbarch
,
4753 struct bp_target_info
*bp_tgt
)
4757 retval
= debug_target
.to_remove_hw_breakpoint (&debug_target
,
4760 fprintf_unfiltered (gdb_stdlog
,
4761 "target_remove_hw_breakpoint (%s, xxx) = %ld\n",
4762 core_addr_to_string (bp_tgt
->placed_address
),
4763 (unsigned long) retval
);
4768 debug_to_insert_watchpoint (struct target_ops
*self
,
4769 CORE_ADDR addr
, int len
, int type
,
4770 struct expression
*cond
)
4774 retval
= debug_target
.to_insert_watchpoint (&debug_target
,
4775 addr
, len
, type
, cond
);
4777 fprintf_unfiltered (gdb_stdlog
,
4778 "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n",
4779 core_addr_to_string (addr
), len
, type
,
4780 host_address_to_string (cond
), (unsigned long) retval
);
4785 debug_to_remove_watchpoint (struct target_ops
*self
,
4786 CORE_ADDR addr
, int len
, int type
,
4787 struct expression
*cond
)
4791 retval
= debug_target
.to_remove_watchpoint (&debug_target
,
4792 addr
, len
, type
, cond
);
4794 fprintf_unfiltered (gdb_stdlog
,
4795 "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n",
4796 core_addr_to_string (addr
), len
, type
,
4797 host_address_to_string (cond
), (unsigned long) retval
);
4802 debug_to_terminal_init (struct target_ops
*self
)
4804 debug_target
.to_terminal_init (&debug_target
);
4806 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
4810 debug_to_terminal_inferior (struct target_ops
*self
)
4812 debug_target
.to_terminal_inferior (&debug_target
);
4814 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
4818 debug_to_terminal_ours_for_output (struct target_ops
*self
)
4820 debug_target
.to_terminal_ours_for_output (&debug_target
);
4822 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
4826 debug_to_terminal_ours (struct target_ops
*self
)
4828 debug_target
.to_terminal_ours (&debug_target
);
4830 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
4834 debug_to_terminal_save_ours (struct target_ops
*self
)
4836 debug_target
.to_terminal_save_ours (&debug_target
);
4838 fprintf_unfiltered (gdb_stdlog
, "target_terminal_save_ours ()\n");
4842 debug_to_terminal_info (struct target_ops
*self
,
4843 const char *arg
, int from_tty
)
4845 debug_target
.to_terminal_info (&debug_target
, arg
, from_tty
);
4847 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
4852 debug_to_load (struct target_ops
*self
, char *args
, int from_tty
)
4854 debug_target
.to_load (&debug_target
, args
, from_tty
);
4856 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
4860 debug_to_post_startup_inferior (struct target_ops
*self
, ptid_t ptid
)
4862 debug_target
.to_post_startup_inferior (&debug_target
, ptid
);
4864 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
4865 ptid_get_pid (ptid
));
4869 debug_to_insert_fork_catchpoint (struct target_ops
*self
, int pid
)
4873 retval
= debug_target
.to_insert_fork_catchpoint (&debug_target
, pid
);
4875 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d) = %d\n",
4882 debug_to_remove_fork_catchpoint (struct target_ops
*self
, int pid
)
4886 retval
= debug_target
.to_remove_fork_catchpoint (&debug_target
, pid
);
4888 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
4895 debug_to_insert_vfork_catchpoint (struct target_ops
*self
, int pid
)
4899 retval
= debug_target
.to_insert_vfork_catchpoint (&debug_target
, pid
);
4901 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d) = %d\n",
4908 debug_to_remove_vfork_catchpoint (struct target_ops
*self
, int pid
)
4912 retval
= debug_target
.to_remove_vfork_catchpoint (&debug_target
, pid
);
4914 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
4921 debug_to_insert_exec_catchpoint (struct target_ops
*self
, int pid
)
4925 retval
= debug_target
.to_insert_exec_catchpoint (&debug_target
, pid
);
4927 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d) = %d\n",
4934 debug_to_remove_exec_catchpoint (struct target_ops
*self
, int pid
)
4938 retval
= debug_target
.to_remove_exec_catchpoint (&debug_target
, pid
);
4940 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
4947 debug_to_has_exited (int pid
, int wait_status
, int *exit_status
)
4951 has_exited
= debug_target
.to_has_exited (pid
, wait_status
, exit_status
);
4953 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
4954 pid
, wait_status
, *exit_status
, has_exited
);
4960 debug_to_can_run (void)
4964 retval
= debug_target
.to_can_run ();
4966 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
4971 static struct gdbarch
*
4972 debug_to_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
4974 struct gdbarch
*retval
;
4976 retval
= debug_target
.to_thread_architecture (ops
, ptid
);
4978 fprintf_unfiltered (gdb_stdlog
,
4979 "target_thread_architecture (%s) = %s [%s]\n",
4980 target_pid_to_str (ptid
),
4981 host_address_to_string (retval
),
4982 gdbarch_bfd_arch_info (retval
)->printable_name
);
4987 debug_to_stop (ptid_t ptid
)
4989 debug_target
.to_stop (ptid
);
4991 fprintf_unfiltered (gdb_stdlog
, "target_stop (%s)\n",
4992 target_pid_to_str (ptid
));
4996 debug_to_rcmd (char *command
,
4997 struct ui_file
*outbuf
)
4999 debug_target
.to_rcmd (command
, outbuf
);
5000 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
5004 debug_to_pid_to_exec_file (int pid
)
5008 exec_file
= debug_target
.to_pid_to_exec_file (pid
);
5010 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
5017 setup_target_debug (void)
5019 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
5021 current_target
.to_open
= debug_to_open
;
5022 current_target
.to_post_attach
= debug_to_post_attach
;
5023 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
5024 current_target
.deprecated_xfer_memory
= deprecated_debug_xfer_memory
;
5025 current_target
.to_files_info
= debug_to_files_info
;
5026 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
5027 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
5028 current_target
.to_can_use_hw_breakpoint
= debug_to_can_use_hw_breakpoint
;
5029 current_target
.to_insert_hw_breakpoint
= debug_to_insert_hw_breakpoint
;
5030 current_target
.to_remove_hw_breakpoint
= debug_to_remove_hw_breakpoint
;
5031 current_target
.to_insert_watchpoint
= debug_to_insert_watchpoint
;
5032 current_target
.to_remove_watchpoint
= debug_to_remove_watchpoint
;
5033 current_target
.to_stopped_by_watchpoint
= debug_to_stopped_by_watchpoint
;
5034 current_target
.to_stopped_data_address
= debug_to_stopped_data_address
;
5035 current_target
.to_watchpoint_addr_within_range
5036 = debug_to_watchpoint_addr_within_range
;
5037 current_target
.to_region_ok_for_hw_watchpoint
5038 = debug_to_region_ok_for_hw_watchpoint
;
5039 current_target
.to_can_accel_watchpoint_condition
5040 = debug_to_can_accel_watchpoint_condition
;
5041 current_target
.to_terminal_init
= debug_to_terminal_init
;
5042 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
5043 current_target
.to_terminal_ours_for_output
5044 = debug_to_terminal_ours_for_output
;
5045 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
5046 current_target
.to_terminal_save_ours
= debug_to_terminal_save_ours
;
5047 current_target
.to_terminal_info
= debug_to_terminal_info
;
5048 current_target
.to_load
= debug_to_load
;
5049 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
5050 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
5051 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
5052 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
5053 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
5054 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
5055 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
5056 current_target
.to_has_exited
= debug_to_has_exited
;
5057 current_target
.to_can_run
= debug_to_can_run
;
5058 current_target
.to_stop
= debug_to_stop
;
5059 current_target
.to_rcmd
= debug_to_rcmd
;
5060 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
5061 current_target
.to_thread_architecture
= debug_to_thread_architecture
;
5065 static char targ_desc
[] =
5066 "Names of targets and files being debugged.\nShows the entire \
5067 stack of targets currently in use (including the exec-file,\n\
5068 core-file, and process, if any), as well as the symbol file name.";
5071 do_monitor_command (char *cmd
,
5074 if ((current_target
.to_rcmd
5075 == (void (*) (char *, struct ui_file
*)) tcomplain
)
5076 || (current_target
.to_rcmd
== debug_to_rcmd
5077 && (debug_target
.to_rcmd
5078 == (void (*) (char *, struct ui_file
*)) tcomplain
)))
5079 error (_("\"monitor\" command not supported by this target."));
5080 target_rcmd (cmd
, gdb_stdtarg
);
5083 /* Print the name of each layers of our target stack. */
5086 maintenance_print_target_stack (char *cmd
, int from_tty
)
5088 struct target_ops
*t
;
5090 printf_filtered (_("The current target stack is:\n"));
5092 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
5094 printf_filtered (" - %s (%s)\n", t
->to_shortname
, t
->to_longname
);
5098 /* Controls if async mode is permitted. */
5099 int target_async_permitted
= 0;
5101 /* The set command writes to this variable. If the inferior is
5102 executing, target_async_permitted is *not* updated. */
5103 static int target_async_permitted_1
= 0;
5106 set_target_async_command (char *args
, int from_tty
,
5107 struct cmd_list_element
*c
)
5109 if (have_live_inferiors ())
5111 target_async_permitted_1
= target_async_permitted
;
5112 error (_("Cannot change this setting while the inferior is running."));
5115 target_async_permitted
= target_async_permitted_1
;
5119 show_target_async_command (struct ui_file
*file
, int from_tty
,
5120 struct cmd_list_element
*c
,
5123 fprintf_filtered (file
,
5124 _("Controlling the inferior in "
5125 "asynchronous mode is %s.\n"), value
);
5128 /* Temporary copies of permission settings. */
5130 static int may_write_registers_1
= 1;
5131 static int may_write_memory_1
= 1;
5132 static int may_insert_breakpoints_1
= 1;
5133 static int may_insert_tracepoints_1
= 1;
5134 static int may_insert_fast_tracepoints_1
= 1;
5135 static int may_stop_1
= 1;
5137 /* Make the user-set values match the real values again. */
5140 update_target_permissions (void)
5142 may_write_registers_1
= may_write_registers
;
5143 may_write_memory_1
= may_write_memory
;
5144 may_insert_breakpoints_1
= may_insert_breakpoints
;
5145 may_insert_tracepoints_1
= may_insert_tracepoints
;
5146 may_insert_fast_tracepoints_1
= may_insert_fast_tracepoints
;
5147 may_stop_1
= may_stop
;
5150 /* The one function handles (most of) the permission flags in the same
5154 set_target_permissions (char *args
, int from_tty
,
5155 struct cmd_list_element
*c
)
5157 if (target_has_execution
)
5159 update_target_permissions ();
5160 error (_("Cannot change this setting while the inferior is running."));
5163 /* Make the real values match the user-changed values. */
5164 may_write_registers
= may_write_registers_1
;
5165 may_insert_breakpoints
= may_insert_breakpoints_1
;
5166 may_insert_tracepoints
= may_insert_tracepoints_1
;
5167 may_insert_fast_tracepoints
= may_insert_fast_tracepoints_1
;
5168 may_stop
= may_stop_1
;
5169 update_observer_mode ();
5172 /* Set memory write permission independently of observer mode. */
5175 set_write_memory_permission (char *args
, int from_tty
,
5176 struct cmd_list_element
*c
)
5178 /* Make the real values match the user-changed values. */
5179 may_write_memory
= may_write_memory_1
;
5180 update_observer_mode ();
5185 initialize_targets (void)
5187 init_dummy_target ();
5188 push_target (&dummy_target
);
5190 add_info ("target", target_info
, targ_desc
);
5191 add_info ("files", target_info
, targ_desc
);
5193 add_setshow_zuinteger_cmd ("target", class_maintenance
, &targetdebug
, _("\
5194 Set target debugging."), _("\
5195 Show target debugging."), _("\
5196 When non-zero, target debugging is enabled. Higher numbers are more\n\
5197 verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
5201 &setdebuglist
, &showdebuglist
);
5203 add_setshow_boolean_cmd ("trust-readonly-sections", class_support
,
5204 &trust_readonly
, _("\
5205 Set mode for reading from readonly sections."), _("\
5206 Show mode for reading from readonly sections."), _("\
5207 When this mode is on, memory reads from readonly sections (such as .text)\n\
5208 will be read from the object file instead of from the target. This will\n\
5209 result in significant performance improvement for remote targets."),
5211 show_trust_readonly
,
5212 &setlist
, &showlist
);
5214 add_com ("monitor", class_obscure
, do_monitor_command
,
5215 _("Send a command to the remote monitor (remote targets only)."));
5217 add_cmd ("target-stack", class_maintenance
, maintenance_print_target_stack
,
5218 _("Print the name of each layer of the internal target stack."),
5219 &maintenanceprintlist
);
5221 add_setshow_boolean_cmd ("target-async", no_class
,
5222 &target_async_permitted_1
, _("\
5223 Set whether gdb controls the inferior in asynchronous mode."), _("\
5224 Show whether gdb controls the inferior in asynchronous mode."), _("\
5225 Tells gdb whether to control the inferior in asynchronous mode."),
5226 set_target_async_command
,
5227 show_target_async_command
,
5231 add_setshow_boolean_cmd ("may-write-registers", class_support
,
5232 &may_write_registers_1
, _("\
5233 Set permission to write into registers."), _("\
5234 Show permission to write into registers."), _("\
5235 When this permission is on, GDB may write into the target's registers.\n\
5236 Otherwise, any sort of write attempt will result in an error."),
5237 set_target_permissions
, NULL
,
5238 &setlist
, &showlist
);
5240 add_setshow_boolean_cmd ("may-write-memory", class_support
,
5241 &may_write_memory_1
, _("\
5242 Set permission to write into target memory."), _("\
5243 Show permission to write into target memory."), _("\
5244 When this permission is on, GDB may write into the target's memory.\n\
5245 Otherwise, any sort of write attempt will result in an error."),
5246 set_write_memory_permission
, NULL
,
5247 &setlist
, &showlist
);
5249 add_setshow_boolean_cmd ("may-insert-breakpoints", class_support
,
5250 &may_insert_breakpoints_1
, _("\
5251 Set permission to insert breakpoints in the target."), _("\
5252 Show permission to insert breakpoints in the target."), _("\
5253 When this permission is on, GDB may insert breakpoints in the program.\n\
5254 Otherwise, any sort of insertion attempt will result in an error."),
5255 set_target_permissions
, NULL
,
5256 &setlist
, &showlist
);
5258 add_setshow_boolean_cmd ("may-insert-tracepoints", class_support
,
5259 &may_insert_tracepoints_1
, _("\
5260 Set permission to insert tracepoints in the target."), _("\
5261 Show permission to insert tracepoints in the target."), _("\
5262 When this permission is on, GDB may insert tracepoints in the program.\n\
5263 Otherwise, any sort of insertion attempt will result in an error."),
5264 set_target_permissions
, NULL
,
5265 &setlist
, &showlist
);
5267 add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support
,
5268 &may_insert_fast_tracepoints_1
, _("\
5269 Set permission to insert fast tracepoints in the target."), _("\
5270 Show permission to insert fast tracepoints in the target."), _("\
5271 When this permission is on, GDB may insert fast tracepoints.\n\
5272 Otherwise, any sort of insertion attempt will result in an error."),
5273 set_target_permissions
, NULL
,
5274 &setlist
, &showlist
);
5276 add_setshow_boolean_cmd ("may-interrupt", class_support
,
5278 Set permission to interrupt or signal the target."), _("\
5279 Show permission to interrupt or signal the target."), _("\
5280 When this permission is on, GDB may interrupt/stop the target's execution.\n\
5281 Otherwise, any attempt to interrupt or stop will be ignored."),
5282 set_target_permissions
, NULL
,
5283 &setlist
, &showlist
);