1 /* Select target systems and architectures at runtime for GDB.
3 Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
5 Free Software Foundation, Inc.
7 Contributed by Cygnus Support.
9 This file is part of GDB.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "gdb_string.h"
38 #include "gdb_assert.h"
40 #include "exceptions.h"
41 #include "target-descriptions.h"
42 #include "gdbthread.h"
45 #include "inline-frame.h"
46 #include "tracepoint.h"
48 static void target_info (char *, int);
50 static void default_terminal_info (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 (CORE_ADDR
, int);
57 static void tcomplain (void) ATTRIBUTE_NORETURN
;
59 static int nomemory (CORE_ADDR
, char *, int, int, struct target_ops
*);
61 static int return_zero (void);
63 static int return_one (void);
65 static int return_minus_one (void);
67 void target_ignore (void);
69 static void target_command (char *, int);
71 static struct target_ops
*find_default_run_target (char *);
73 static LONGEST
default_xfer_partial (struct target_ops
*ops
,
74 enum target_object object
,
75 const char *annex
, gdb_byte
*readbuf
,
76 const gdb_byte
*writebuf
,
77 ULONGEST offset
, LONGEST len
);
79 static LONGEST
current_xfer_partial (struct target_ops
*ops
,
80 enum target_object object
,
81 const char *annex
, gdb_byte
*readbuf
,
82 const gdb_byte
*writebuf
,
83 ULONGEST offset
, LONGEST len
);
85 static LONGEST
target_xfer_partial (struct target_ops
*ops
,
86 enum target_object object
,
88 void *readbuf
, const void *writebuf
,
89 ULONGEST offset
, LONGEST len
);
91 static struct gdbarch
*default_thread_architecture (struct target_ops
*ops
,
94 static void init_dummy_target (void);
96 static struct target_ops debug_target
;
98 static void debug_to_open (char *, int);
100 static void debug_to_prepare_to_store (struct regcache
*);
102 static void debug_to_files_info (struct target_ops
*);
104 static int debug_to_insert_breakpoint (struct gdbarch
*,
105 struct bp_target_info
*);
107 static int debug_to_remove_breakpoint (struct gdbarch
*,
108 struct bp_target_info
*);
110 static int debug_to_can_use_hw_breakpoint (int, int, int);
112 static int debug_to_insert_hw_breakpoint (struct gdbarch
*,
113 struct bp_target_info
*);
115 static int debug_to_remove_hw_breakpoint (struct gdbarch
*,
116 struct bp_target_info
*);
118 static int debug_to_insert_watchpoint (CORE_ADDR
, int, int,
119 struct expression
*);
121 static int debug_to_remove_watchpoint (CORE_ADDR
, int, int,
122 struct expression
*);
124 static int debug_to_stopped_by_watchpoint (void);
126 static int debug_to_stopped_data_address (struct target_ops
*, CORE_ADDR
*);
128 static int debug_to_watchpoint_addr_within_range (struct target_ops
*,
129 CORE_ADDR
, CORE_ADDR
, int);
131 static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR
, int);
133 static int debug_to_can_accel_watchpoint_condition (CORE_ADDR
, int, int,
134 struct expression
*);
136 static void debug_to_terminal_init (void);
138 static void debug_to_terminal_inferior (void);
140 static void debug_to_terminal_ours_for_output (void);
142 static void debug_to_terminal_save_ours (void);
144 static void debug_to_terminal_ours (void);
146 static void debug_to_terminal_info (char *, int);
148 static void debug_to_load (char *, int);
150 static int debug_to_can_run (void);
152 static void debug_to_stop (ptid_t
);
154 /* Pointer to array of target architecture structures; the size of the
155 array; the current index into the array; the allocated size of the
157 struct target_ops
**target_structs
;
158 unsigned target_struct_size
;
159 unsigned target_struct_index
;
160 unsigned target_struct_allocsize
;
161 #define DEFAULT_ALLOCSIZE 10
163 /* The initial current target, so that there is always a semi-valid
166 static struct target_ops dummy_target
;
168 /* Top of target stack. */
170 static struct target_ops
*target_stack
;
172 /* The target structure we are currently using to talk to a process
173 or file or whatever "inferior" we have. */
175 struct target_ops current_target
;
177 /* Command list for target. */
179 static struct cmd_list_element
*targetlist
= NULL
;
181 /* Nonzero if we should trust readonly sections from the
182 executable when reading memory. */
184 static int trust_readonly
= 0;
186 /* Nonzero if we should show true memory content including
187 memory breakpoint inserted by gdb. */
189 static int show_memory_breakpoints
= 0;
191 /* These globals control whether GDB attempts to perform these
192 operations; they are useful for targets that need to prevent
193 inadvertant disruption, such as in non-stop mode. */
195 int may_write_registers
= 1;
197 int may_write_memory
= 1;
199 int may_insert_breakpoints
= 1;
201 int may_insert_tracepoints
= 1;
203 int may_insert_fast_tracepoints
= 1;
207 /* Non-zero if we want to see trace of target level stuff. */
209 static int targetdebug
= 0;
211 show_targetdebug (struct ui_file
*file
, int from_tty
,
212 struct cmd_list_element
*c
, const char *value
)
214 fprintf_filtered (file
, _("Target debugging is %s.\n"), value
);
217 static void setup_target_debug (void);
219 /* The option sets this. */
220 static int stack_cache_enabled_p_1
= 1;
221 /* And set_stack_cache_enabled_p updates this.
222 The reason for the separation is so that we don't flush the cache for
223 on->on transitions. */
224 static int stack_cache_enabled_p
= 1;
226 /* This is called *after* the stack-cache has been set.
227 Flush the cache for off->on and on->off transitions.
228 There's no real need to flush the cache for on->off transitions,
229 except cleanliness. */
232 set_stack_cache_enabled_p (char *args
, int from_tty
,
233 struct cmd_list_element
*c
)
235 if (stack_cache_enabled_p
!= stack_cache_enabled_p_1
)
236 target_dcache_invalidate ();
238 stack_cache_enabled_p
= stack_cache_enabled_p_1
;
242 show_stack_cache_enabled_p (struct ui_file
*file
, int from_tty
,
243 struct cmd_list_element
*c
, const char *value
)
245 fprintf_filtered (file
, _("Cache use for stack accesses is %s.\n"), value
);
248 /* Cache of memory operations, to speed up remote access. */
249 static DCACHE
*target_dcache
;
251 /* Invalidate the target dcache. */
254 target_dcache_invalidate (void)
256 dcache_invalidate (target_dcache
);
259 /* The user just typed 'target' without the name of a target. */
262 target_command (char *arg
, int from_tty
)
264 fputs_filtered ("Argument required (target name). Try `help target'\n",
268 /* Default target_has_* methods for process_stratum targets. */
271 default_child_has_all_memory (struct target_ops
*ops
)
273 /* If no inferior selected, then we can't read memory here. */
274 if (ptid_equal (inferior_ptid
, null_ptid
))
281 default_child_has_memory (struct target_ops
*ops
)
283 /* If no inferior selected, then we can't read memory here. */
284 if (ptid_equal (inferior_ptid
, null_ptid
))
291 default_child_has_stack (struct target_ops
*ops
)
293 /* If no inferior selected, there's no stack. */
294 if (ptid_equal (inferior_ptid
, null_ptid
))
301 default_child_has_registers (struct target_ops
*ops
)
303 /* Can't read registers from no inferior. */
304 if (ptid_equal (inferior_ptid
, null_ptid
))
311 default_child_has_execution (struct target_ops
*ops
, ptid_t the_ptid
)
313 /* If there's no thread selected, then we can't make it run through
315 if (ptid_equal (the_ptid
, null_ptid
))
323 target_has_all_memory_1 (void)
325 struct target_ops
*t
;
327 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
328 if (t
->to_has_all_memory (t
))
335 target_has_memory_1 (void)
337 struct target_ops
*t
;
339 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
340 if (t
->to_has_memory (t
))
347 target_has_stack_1 (void)
349 struct target_ops
*t
;
351 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
352 if (t
->to_has_stack (t
))
359 target_has_registers_1 (void)
361 struct target_ops
*t
;
363 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
364 if (t
->to_has_registers (t
))
371 target_has_execution_1 (ptid_t the_ptid
)
373 struct target_ops
*t
;
375 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
376 if (t
->to_has_execution (t
, the_ptid
))
383 target_has_execution_current (void)
385 return target_has_execution_1 (inferior_ptid
);
388 /* Add a possible target architecture to the list. */
391 add_target (struct target_ops
*t
)
393 /* Provide default values for all "must have" methods. */
394 if (t
->to_xfer_partial
== NULL
)
395 t
->to_xfer_partial
= default_xfer_partial
;
397 if (t
->to_has_all_memory
== NULL
)
398 t
->to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
400 if (t
->to_has_memory
== NULL
)
401 t
->to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
403 if (t
->to_has_stack
== NULL
)
404 t
->to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
406 if (t
->to_has_registers
== NULL
)
407 t
->to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
409 if (t
->to_has_execution
== NULL
)
410 t
->to_has_execution
= (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
414 target_struct_allocsize
= DEFAULT_ALLOCSIZE
;
415 target_structs
= (struct target_ops
**) xmalloc
416 (target_struct_allocsize
* sizeof (*target_structs
));
418 if (target_struct_size
>= target_struct_allocsize
)
420 target_struct_allocsize
*= 2;
421 target_structs
= (struct target_ops
**)
422 xrealloc ((char *) target_structs
,
423 target_struct_allocsize
* sizeof (*target_structs
));
425 target_structs
[target_struct_size
++] = t
;
427 if (targetlist
== NULL
)
428 add_prefix_cmd ("target", class_run
, target_command
, _("\
429 Connect to a target machine or process.\n\
430 The first argument is the type or protocol of the target machine.\n\
431 Remaining arguments are interpreted by the target protocol. For more\n\
432 information on the arguments for a particular protocol, type\n\
433 `help target ' followed by the protocol name."),
434 &targetlist
, "target ", 0, &cmdlist
);
435 add_cmd (t
->to_shortname
, no_class
, t
->to_open
, t
->to_doc
, &targetlist
);
448 struct target_ops
*t
;
450 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
451 if (t
->to_kill
!= NULL
)
454 fprintf_unfiltered (gdb_stdlog
, "target_kill ()\n");
464 target_load (char *arg
, int from_tty
)
466 target_dcache_invalidate ();
467 (*current_target
.to_load
) (arg
, from_tty
);
471 target_create_inferior (char *exec_file
, char *args
,
472 char **env
, int from_tty
)
474 struct target_ops
*t
;
476 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
478 if (t
->to_create_inferior
!= NULL
)
480 t
->to_create_inferior (t
, exec_file
, args
, env
, from_tty
);
482 fprintf_unfiltered (gdb_stdlog
,
483 "target_create_inferior (%s, %s, xxx, %d)\n",
484 exec_file
, args
, from_tty
);
489 internal_error (__FILE__
, __LINE__
,
490 _("could not find a target to create inferior"));
494 target_terminal_inferior (void)
496 /* A background resume (``run&'') should leave GDB in control of the
497 terminal. Use target_can_async_p, not target_is_async_p, since at
498 this point the target is not async yet. However, if sync_execution
499 is not set, we know it will become async prior to resume. */
500 if (target_can_async_p () && !sync_execution
)
503 /* If GDB is resuming the inferior in the foreground, install
504 inferior's terminal modes. */
505 (*current_target
.to_terminal_inferior
) ();
509 nomemory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
,
510 struct target_ops
*t
)
512 errno
= EIO
; /* Can't read/write this location. */
513 return 0; /* No bytes handled. */
519 error (_("You can't do that when your target is `%s'"),
520 current_target
.to_shortname
);
526 error (_("You can't do that without a process to debug."));
530 default_terminal_info (char *args
, int from_tty
)
532 printf_unfiltered (_("No saved terminal information.\n"));
535 /* A default implementation for the to_get_ada_task_ptid target method.
537 This function builds the PTID by using both LWP and TID as part of
538 the PTID lwp and tid elements. The pid used is the pid of the
542 default_get_ada_task_ptid (long lwp
, long tid
)
544 return ptid_build (ptid_get_pid (inferior_ptid
), lwp
, tid
);
547 /* Go through the target stack from top to bottom, copying over zero
548 entries in current_target, then filling in still empty entries. In
549 effect, we are doing class inheritance through the pushed target
552 NOTE: cagney/2003-10-17: The problem with this inheritance, as it
553 is currently implemented, is that it discards any knowledge of
554 which target an inherited method originally belonged to.
555 Consequently, new new target methods should instead explicitly and
556 locally search the target stack for the target that can handle the
560 update_current_target (void)
562 struct target_ops
*t
;
564 /* First, reset current's contents. */
565 memset (¤t_target
, 0, sizeof (current_target
));
567 #define INHERIT(FIELD, TARGET) \
568 if (!current_target.FIELD) \
569 current_target.FIELD = (TARGET)->FIELD
571 for (t
= target_stack
; t
; t
= t
->beneath
)
573 INHERIT (to_shortname
, t
);
574 INHERIT (to_longname
, t
);
576 /* Do not inherit to_open. */
577 /* Do not inherit to_close. */
578 /* Do not inherit to_attach. */
579 INHERIT (to_post_attach
, t
);
580 INHERIT (to_attach_no_wait
, t
);
581 /* Do not inherit to_detach. */
582 /* Do not inherit to_disconnect. */
583 /* Do not inherit to_resume. */
584 /* Do not inherit to_wait. */
585 /* Do not inherit to_fetch_registers. */
586 /* Do not inherit to_store_registers. */
587 INHERIT (to_prepare_to_store
, t
);
588 INHERIT (deprecated_xfer_memory
, t
);
589 INHERIT (to_files_info
, t
);
590 INHERIT (to_insert_breakpoint
, t
);
591 INHERIT (to_remove_breakpoint
, t
);
592 INHERIT (to_can_use_hw_breakpoint
, t
);
593 INHERIT (to_insert_hw_breakpoint
, t
);
594 INHERIT (to_remove_hw_breakpoint
, t
);
595 /* Do not inherit to_ranged_break_num_registers. */
596 INHERIT (to_insert_watchpoint
, t
);
597 INHERIT (to_remove_watchpoint
, t
);
598 /* Do not inherit to_insert_mask_watchpoint. */
599 /* Do not inherit to_remove_mask_watchpoint. */
600 INHERIT (to_stopped_data_address
, t
);
601 INHERIT (to_have_steppable_watchpoint
, t
);
602 INHERIT (to_have_continuable_watchpoint
, t
);
603 INHERIT (to_stopped_by_watchpoint
, t
);
604 INHERIT (to_watchpoint_addr_within_range
, t
);
605 INHERIT (to_region_ok_for_hw_watchpoint
, t
);
606 INHERIT (to_can_accel_watchpoint_condition
, t
);
607 /* Do not inherit to_masked_watch_num_registers. */
608 INHERIT (to_terminal_init
, t
);
609 INHERIT (to_terminal_inferior
, t
);
610 INHERIT (to_terminal_ours_for_output
, t
);
611 INHERIT (to_terminal_ours
, t
);
612 INHERIT (to_terminal_save_ours
, t
);
613 INHERIT (to_terminal_info
, t
);
614 /* Do not inherit to_kill. */
615 INHERIT (to_load
, t
);
616 /* Do no inherit to_create_inferior. */
617 INHERIT (to_post_startup_inferior
, t
);
618 INHERIT (to_insert_fork_catchpoint
, t
);
619 INHERIT (to_remove_fork_catchpoint
, t
);
620 INHERIT (to_insert_vfork_catchpoint
, t
);
621 INHERIT (to_remove_vfork_catchpoint
, t
);
622 /* Do not inherit to_follow_fork. */
623 INHERIT (to_insert_exec_catchpoint
, t
);
624 INHERIT (to_remove_exec_catchpoint
, t
);
625 INHERIT (to_set_syscall_catchpoint
, t
);
626 INHERIT (to_has_exited
, t
);
627 /* Do not inherit to_mourn_inferior. */
628 INHERIT (to_can_run
, t
);
629 /* Do not inherit to_pass_signals. */
630 /* Do not inherit to_thread_alive. */
631 /* Do not inherit to_find_new_threads. */
632 /* Do not inherit to_pid_to_str. */
633 INHERIT (to_extra_thread_info
, t
);
634 INHERIT (to_thread_name
, t
);
635 INHERIT (to_stop
, t
);
636 /* Do not inherit to_xfer_partial. */
637 INHERIT (to_rcmd
, t
);
638 INHERIT (to_pid_to_exec_file
, t
);
639 INHERIT (to_log_command
, t
);
640 INHERIT (to_stratum
, t
);
641 /* Do not inherit to_has_all_memory. */
642 /* Do not inherit to_has_memory. */
643 /* Do not inherit to_has_stack. */
644 /* Do not inherit to_has_registers. */
645 /* Do not inherit to_has_execution. */
646 INHERIT (to_has_thread_control
, t
);
647 INHERIT (to_can_async_p
, t
);
648 INHERIT (to_is_async_p
, t
);
649 INHERIT (to_async
, t
);
650 INHERIT (to_async_mask
, t
);
651 INHERIT (to_find_memory_regions
, t
);
652 INHERIT (to_make_corefile_notes
, t
);
653 INHERIT (to_get_bookmark
, t
);
654 INHERIT (to_goto_bookmark
, t
);
655 /* Do not inherit to_get_thread_local_address. */
656 INHERIT (to_can_execute_reverse
, t
);
657 INHERIT (to_thread_architecture
, t
);
658 /* Do not inherit to_read_description. */
659 INHERIT (to_get_ada_task_ptid
, t
);
660 /* Do not inherit to_search_memory. */
661 INHERIT (to_supports_multi_process
, t
);
662 INHERIT (to_supports_enable_disable_tracepoint
, t
);
663 INHERIT (to_trace_init
, t
);
664 INHERIT (to_download_tracepoint
, t
);
665 INHERIT (to_download_trace_state_variable
, t
);
666 INHERIT (to_enable_tracepoint
, t
);
667 INHERIT (to_disable_tracepoint
, t
);
668 INHERIT (to_trace_set_readonly_regions
, t
);
669 INHERIT (to_trace_start
, t
);
670 INHERIT (to_get_trace_status
, t
);
671 INHERIT (to_trace_stop
, t
);
672 INHERIT (to_trace_find
, t
);
673 INHERIT (to_get_trace_state_variable_value
, t
);
674 INHERIT (to_save_trace_data
, t
);
675 INHERIT (to_upload_tracepoints
, t
);
676 INHERIT (to_upload_trace_state_variables
, t
);
677 INHERIT (to_get_raw_trace_data
, t
);
678 INHERIT (to_set_disconnected_tracing
, t
);
679 INHERIT (to_set_circular_trace_buffer
, t
);
680 INHERIT (to_get_tib_address
, t
);
681 INHERIT (to_set_permissions
, t
);
682 INHERIT (to_static_tracepoint_marker_at
, t
);
683 INHERIT (to_static_tracepoint_markers_by_strid
, t
);
684 INHERIT (to_traceframe_info
, t
);
685 INHERIT (to_magic
, t
);
686 /* Do not inherit to_memory_map. */
687 /* Do not inherit to_flash_erase. */
688 /* Do not inherit to_flash_done. */
692 /* Clean up a target struct so it no longer has any zero pointers in
693 it. Some entries are defaulted to a method that print an error,
694 others are hard-wired to a standard recursive default. */
696 #define de_fault(field, value) \
697 if (!current_target.field) \
698 current_target.field = value
701 (void (*) (char *, int))
706 de_fault (to_post_attach
,
709 de_fault (to_prepare_to_store
,
710 (void (*) (struct regcache
*))
712 de_fault (deprecated_xfer_memory
,
713 (int (*) (CORE_ADDR
, gdb_byte
*, int, int,
714 struct mem_attrib
*, struct target_ops
*))
716 de_fault (to_files_info
,
717 (void (*) (struct target_ops
*))
719 de_fault (to_insert_breakpoint
,
720 memory_insert_breakpoint
);
721 de_fault (to_remove_breakpoint
,
722 memory_remove_breakpoint
);
723 de_fault (to_can_use_hw_breakpoint
,
724 (int (*) (int, int, int))
726 de_fault (to_insert_hw_breakpoint
,
727 (int (*) (struct gdbarch
*, struct bp_target_info
*))
729 de_fault (to_remove_hw_breakpoint
,
730 (int (*) (struct gdbarch
*, struct bp_target_info
*))
732 de_fault (to_insert_watchpoint
,
733 (int (*) (CORE_ADDR
, int, int, struct expression
*))
735 de_fault (to_remove_watchpoint
,
736 (int (*) (CORE_ADDR
, int, int, struct expression
*))
738 de_fault (to_stopped_by_watchpoint
,
741 de_fault (to_stopped_data_address
,
742 (int (*) (struct target_ops
*, CORE_ADDR
*))
744 de_fault (to_watchpoint_addr_within_range
,
745 default_watchpoint_addr_within_range
);
746 de_fault (to_region_ok_for_hw_watchpoint
,
747 default_region_ok_for_hw_watchpoint
);
748 de_fault (to_can_accel_watchpoint_condition
,
749 (int (*) (CORE_ADDR
, int, int, struct expression
*))
751 de_fault (to_terminal_init
,
754 de_fault (to_terminal_inferior
,
757 de_fault (to_terminal_ours_for_output
,
760 de_fault (to_terminal_ours
,
763 de_fault (to_terminal_save_ours
,
766 de_fault (to_terminal_info
,
767 default_terminal_info
);
769 (void (*) (char *, int))
771 de_fault (to_post_startup_inferior
,
774 de_fault (to_insert_fork_catchpoint
,
777 de_fault (to_remove_fork_catchpoint
,
780 de_fault (to_insert_vfork_catchpoint
,
783 de_fault (to_remove_vfork_catchpoint
,
786 de_fault (to_insert_exec_catchpoint
,
789 de_fault (to_remove_exec_catchpoint
,
792 de_fault (to_set_syscall_catchpoint
,
793 (int (*) (int, int, int, int, int *))
795 de_fault (to_has_exited
,
796 (int (*) (int, int, int *))
798 de_fault (to_can_run
,
800 de_fault (to_extra_thread_info
,
801 (char *(*) (struct thread_info
*))
803 de_fault (to_thread_name
,
804 (char *(*) (struct thread_info
*))
809 current_target
.to_xfer_partial
= current_xfer_partial
;
811 (void (*) (char *, struct ui_file
*))
813 de_fault (to_pid_to_exec_file
,
817 (void (*) (void (*) (enum inferior_event_type
, void*), void*))
819 de_fault (to_async_mask
,
822 de_fault (to_thread_architecture
,
823 default_thread_architecture
);
824 current_target
.to_read_description
= NULL
;
825 de_fault (to_get_ada_task_ptid
,
826 (ptid_t (*) (long, long))
827 default_get_ada_task_ptid
);
828 de_fault (to_supports_multi_process
,
831 de_fault (to_supports_enable_disable_tracepoint
,
834 de_fault (to_trace_init
,
837 de_fault (to_download_tracepoint
,
838 (void (*) (struct breakpoint
*))
840 de_fault (to_download_trace_state_variable
,
841 (void (*) (struct trace_state_variable
*))
843 de_fault (to_enable_tracepoint
,
844 (void (*) (struct bp_location
*))
846 de_fault (to_disable_tracepoint
,
847 (void (*) (struct bp_location
*))
849 de_fault (to_trace_set_readonly_regions
,
852 de_fault (to_trace_start
,
855 de_fault (to_get_trace_status
,
856 (int (*) (struct trace_status
*))
858 de_fault (to_trace_stop
,
861 de_fault (to_trace_find
,
862 (int (*) (enum trace_find_type
, int, ULONGEST
, ULONGEST
, int *))
864 de_fault (to_get_trace_state_variable_value
,
865 (int (*) (int, LONGEST
*))
867 de_fault (to_save_trace_data
,
868 (int (*) (const char *))
870 de_fault (to_upload_tracepoints
,
871 (int (*) (struct uploaded_tp
**))
873 de_fault (to_upload_trace_state_variables
,
874 (int (*) (struct uploaded_tsv
**))
876 de_fault (to_get_raw_trace_data
,
877 (LONGEST (*) (gdb_byte
*, ULONGEST
, LONGEST
))
879 de_fault (to_set_disconnected_tracing
,
882 de_fault (to_set_circular_trace_buffer
,
885 de_fault (to_get_tib_address
,
886 (int (*) (ptid_t
, CORE_ADDR
*))
888 de_fault (to_set_permissions
,
891 de_fault (to_static_tracepoint_marker_at
,
892 (int (*) (CORE_ADDR
, struct static_tracepoint_marker
*))
894 de_fault (to_static_tracepoint_markers_by_strid
,
895 (VEC(static_tracepoint_marker_p
) * (*) (const char *))
897 de_fault (to_traceframe_info
,
898 (struct traceframe_info
* (*) (void))
902 /* Finally, position the target-stack beneath the squashed
903 "current_target". That way code looking for a non-inherited
904 target method can quickly and simply find it. */
905 current_target
.beneath
= target_stack
;
908 setup_target_debug ();
911 /* Push a new target type into the stack of the existing target accessors,
912 possibly superseding some of the existing accessors.
914 Rather than allow an empty stack, we always have the dummy target at
915 the bottom stratum, so we can call the function vectors without
919 push_target (struct target_ops
*t
)
921 struct target_ops
**cur
;
923 /* Check magic number. If wrong, it probably means someone changed
924 the struct definition, but not all the places that initialize one. */
925 if (t
->to_magic
!= OPS_MAGIC
)
927 fprintf_unfiltered (gdb_stderr
,
928 "Magic number of %s target struct wrong\n",
930 internal_error (__FILE__
, __LINE__
,
931 _("failed internal consistency check"));
934 /* Find the proper stratum to install this target in. */
935 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
937 if ((int) (t
->to_stratum
) >= (int) (*cur
)->to_stratum
)
941 /* If there's already targets at this stratum, remove them. */
942 /* FIXME: cagney/2003-10-15: I think this should be popping all
943 targets to CUR, and not just those at this stratum level. */
944 while ((*cur
) != NULL
&& t
->to_stratum
== (*cur
)->to_stratum
)
946 /* There's already something at this stratum level. Close it,
947 and un-hook it from the stack. */
948 struct target_ops
*tmp
= (*cur
);
950 (*cur
) = (*cur
)->beneath
;
952 target_close (tmp
, 0);
955 /* We have removed all targets in our stratum, now add the new one. */
959 update_current_target ();
962 /* Remove a target_ops vector from the stack, wherever it may be.
963 Return how many times it was removed (0 or 1). */
966 unpush_target (struct target_ops
*t
)
968 struct target_ops
**cur
;
969 struct target_ops
*tmp
;
971 if (t
->to_stratum
== dummy_stratum
)
972 internal_error (__FILE__
, __LINE__
,
973 _("Attempt to unpush the dummy target"));
975 /* Look for the specified target. Note that we assume that a target
976 can only occur once in the target stack. */
978 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
985 return 0; /* Didn't find target_ops, quit now. */
987 /* NOTE: cagney/2003-12-06: In '94 the close call was made
988 unconditional by moving it to before the above check that the
989 target was in the target stack (something about "Change the way
990 pushing and popping of targets work to support target overlays
991 and inheritance"). This doesn't make much sense - only open
992 targets should be closed. */
995 /* Unchain the target. */
997 (*cur
) = (*cur
)->beneath
;
1000 update_current_target ();
1008 target_close (target_stack
, 0); /* Let it clean up. */
1009 if (unpush_target (target_stack
) == 1)
1012 fprintf_unfiltered (gdb_stderr
,
1013 "pop_target couldn't find target %s\n",
1014 current_target
.to_shortname
);
1015 internal_error (__FILE__
, __LINE__
,
1016 _("failed internal consistency check"));
1020 pop_all_targets_above (enum strata above_stratum
, int quitting
)
1022 while ((int) (current_target
.to_stratum
) > (int) above_stratum
)
1024 target_close (target_stack
, quitting
);
1025 if (!unpush_target (target_stack
))
1027 fprintf_unfiltered (gdb_stderr
,
1028 "pop_all_targets couldn't find target %s\n",
1029 target_stack
->to_shortname
);
1030 internal_error (__FILE__
, __LINE__
,
1031 _("failed internal consistency check"));
1038 pop_all_targets (int quitting
)
1040 pop_all_targets_above (dummy_stratum
, quitting
);
1043 /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */
1046 target_is_pushed (struct target_ops
*t
)
1048 struct target_ops
**cur
;
1050 /* Check magic number. If wrong, it probably means someone changed
1051 the struct definition, but not all the places that initialize one. */
1052 if (t
->to_magic
!= OPS_MAGIC
)
1054 fprintf_unfiltered (gdb_stderr
,
1055 "Magic number of %s target struct wrong\n",
1057 internal_error (__FILE__
, __LINE__
,
1058 _("failed internal consistency check"));
1061 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
1068 /* Using the objfile specified in OBJFILE, find the address for the
1069 current thread's thread-local storage with offset OFFSET. */
1071 target_translate_tls_address (struct objfile
*objfile
, CORE_ADDR offset
)
1073 volatile CORE_ADDR addr
= 0;
1074 struct target_ops
*target
;
1076 for (target
= current_target
.beneath
;
1078 target
= target
->beneath
)
1080 if (target
->to_get_thread_local_address
!= NULL
)
1085 && gdbarch_fetch_tls_load_module_address_p (target_gdbarch
))
1087 ptid_t ptid
= inferior_ptid
;
1088 volatile struct gdb_exception ex
;
1090 TRY_CATCH (ex
, RETURN_MASK_ALL
)
1094 /* Fetch the load module address for this objfile. */
1095 lm_addr
= gdbarch_fetch_tls_load_module_address (target_gdbarch
,
1097 /* If it's 0, throw the appropriate exception. */
1099 throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR
,
1100 _("TLS load module not found"));
1102 addr
= target
->to_get_thread_local_address (target
, ptid
,
1105 /* If an error occurred, print TLS related messages here. Otherwise,
1106 throw the error to some higher catcher. */
1109 int objfile_is_library
= (objfile
->flags
& OBJF_SHARED
);
1113 case TLS_NO_LIBRARY_SUPPORT_ERROR
:
1114 error (_("Cannot find thread-local variables "
1115 "in this thread library."));
1117 case TLS_LOAD_MODULE_NOT_FOUND_ERROR
:
1118 if (objfile_is_library
)
1119 error (_("Cannot find shared library `%s' in dynamic"
1120 " linker's load module list"), objfile
->name
);
1122 error (_("Cannot find executable file `%s' in dynamic"
1123 " linker's load module list"), objfile
->name
);
1125 case TLS_NOT_ALLOCATED_YET_ERROR
:
1126 if (objfile_is_library
)
1127 error (_("The inferior has not yet allocated storage for"
1128 " thread-local variables in\n"
1129 "the shared library `%s'\n"
1131 objfile
->name
, target_pid_to_str (ptid
));
1133 error (_("The inferior has not yet allocated storage for"
1134 " thread-local variables in\n"
1135 "the executable `%s'\n"
1137 objfile
->name
, target_pid_to_str (ptid
));
1139 case TLS_GENERIC_ERROR
:
1140 if (objfile_is_library
)
1141 error (_("Cannot find thread-local storage for %s, "
1142 "shared library %s:\n%s"),
1143 target_pid_to_str (ptid
),
1144 objfile
->name
, ex
.message
);
1146 error (_("Cannot find thread-local storage for %s, "
1147 "executable file %s:\n%s"),
1148 target_pid_to_str (ptid
),
1149 objfile
->name
, ex
.message
);
1152 throw_exception (ex
);
1157 /* It wouldn't be wrong here to try a gdbarch method, too; finding
1158 TLS is an ABI-specific thing. But we don't do that yet. */
1160 error (_("Cannot find thread-local variables on this target"));
1166 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
1168 /* target_read_string -- read a null terminated string, up to LEN bytes,
1169 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
1170 Set *STRING to a pointer to malloc'd memory containing the data; the caller
1171 is responsible for freeing it. Return the number of bytes successfully
1175 target_read_string (CORE_ADDR memaddr
, char **string
, int len
, int *errnop
)
1177 int tlen
, origlen
, offset
, i
;
1181 int buffer_allocated
;
1183 unsigned int nbytes_read
= 0;
1185 gdb_assert (string
);
1187 /* Small for testing. */
1188 buffer_allocated
= 4;
1189 buffer
= xmalloc (buffer_allocated
);
1196 tlen
= MIN (len
, 4 - (memaddr
& 3));
1197 offset
= memaddr
& 3;
1199 errcode
= target_read_memory (memaddr
& ~3, buf
, sizeof buf
);
1202 /* The transfer request might have crossed the boundary to an
1203 unallocated region of memory. Retry the transfer, requesting
1207 errcode
= target_read_memory (memaddr
, buf
, 1);
1212 if (bufptr
- buffer
+ tlen
> buffer_allocated
)
1216 bytes
= bufptr
- buffer
;
1217 buffer_allocated
*= 2;
1218 buffer
= xrealloc (buffer
, buffer_allocated
);
1219 bufptr
= buffer
+ bytes
;
1222 for (i
= 0; i
< tlen
; i
++)
1224 *bufptr
++ = buf
[i
+ offset
];
1225 if (buf
[i
+ offset
] == '\000')
1227 nbytes_read
+= i
+ 1;
1234 nbytes_read
+= tlen
;
1243 struct target_section_table
*
1244 target_get_section_table (struct target_ops
*target
)
1246 struct target_ops
*t
;
1249 fprintf_unfiltered (gdb_stdlog
, "target_get_section_table ()\n");
1251 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
1252 if (t
->to_get_section_table
!= NULL
)
1253 return (*t
->to_get_section_table
) (t
);
1258 /* Find a section containing ADDR. */
1260 struct target_section
*
1261 target_section_by_addr (struct target_ops
*target
, CORE_ADDR addr
)
1263 struct target_section_table
*table
= target_get_section_table (target
);
1264 struct target_section
*secp
;
1269 for (secp
= table
->sections
; secp
< table
->sections_end
; secp
++)
1271 if (addr
>= secp
->addr
&& addr
< secp
->endaddr
)
1277 /* Read memory from the live target, even if currently inspecting a
1278 traceframe. The return is the same as that of target_read. */
1281 target_read_live_memory (enum target_object object
,
1282 ULONGEST memaddr
, gdb_byte
*myaddr
, LONGEST len
)
1285 struct cleanup
*cleanup
;
1287 /* Switch momentarily out of tfind mode so to access live memory.
1288 Note that this must not clear global state, such as the frame
1289 cache, which must still remain valid for the previous traceframe.
1290 We may be _building_ the frame cache at this point. */
1291 cleanup
= make_cleanup_restore_traceframe_number ();
1292 set_traceframe_number (-1);
1294 ret
= target_read (current_target
.beneath
, object
, NULL
,
1295 myaddr
, memaddr
, len
);
1297 do_cleanups (cleanup
);
1301 /* Using the set of read-only target sections of OPS, read live
1302 read-only memory. Note that the actual reads start from the
1303 top-most target again.
1305 For interface/parameters/return description see target.h,
1309 memory_xfer_live_readonly_partial (struct target_ops
*ops
,
1310 enum target_object object
,
1311 gdb_byte
*readbuf
, ULONGEST memaddr
,
1314 struct target_section
*secp
;
1315 struct target_section_table
*table
;
1317 secp
= target_section_by_addr (ops
, memaddr
);
1319 && (bfd_get_section_flags (secp
->bfd
, secp
->the_bfd_section
)
1322 struct target_section
*p
;
1323 ULONGEST memend
= memaddr
+ len
;
1325 table
= target_get_section_table (ops
);
1327 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
1329 if (memaddr
>= p
->addr
)
1331 if (memend
<= p
->endaddr
)
1333 /* Entire transfer is within this section. */
1334 return target_read_live_memory (object
, memaddr
,
1337 else if (memaddr
>= p
->endaddr
)
1339 /* This section ends before the transfer starts. */
1344 /* This section overlaps the transfer. Just do half. */
1345 len
= p
->endaddr
- memaddr
;
1346 return target_read_live_memory (object
, memaddr
,
1356 /* Perform a partial memory transfer.
1357 For docs see target.h, to_xfer_partial. */
1360 memory_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1361 void *readbuf
, const void *writebuf
, ULONGEST memaddr
,
1366 struct mem_region
*region
;
1367 struct inferior
*inf
;
1369 /* Zero length requests are ok and require no work. */
1373 /* For accesses to unmapped overlay sections, read directly from
1374 files. Must do this first, as MEMADDR may need adjustment. */
1375 if (readbuf
!= NULL
&& overlay_debugging
)
1377 struct obj_section
*section
= find_pc_overlay (memaddr
);
1379 if (pc_in_unmapped_range (memaddr
, section
))
1381 struct target_section_table
*table
1382 = target_get_section_table (ops
);
1383 const char *section_name
= section
->the_bfd_section
->name
;
1385 memaddr
= overlay_mapped_address (memaddr
, section
);
1386 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1389 table
->sections_end
,
1394 /* Try the executable files, if "trust-readonly-sections" is set. */
1395 if (readbuf
!= NULL
&& trust_readonly
)
1397 struct target_section
*secp
;
1398 struct target_section_table
*table
;
1400 secp
= target_section_by_addr (ops
, memaddr
);
1402 && (bfd_get_section_flags (secp
->bfd
, secp
->the_bfd_section
)
1405 table
= target_get_section_table (ops
);
1406 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1409 table
->sections_end
,
1414 /* If reading unavailable memory in the context of traceframes, and
1415 this address falls within a read-only section, fallback to
1416 reading from live memory. */
1417 if (readbuf
!= NULL
&& get_traceframe_number () != -1)
1419 VEC(mem_range_s
) *available
;
1421 /* If we fail to get the set of available memory, then the
1422 target does not support querying traceframe info, and so we
1423 attempt reading from the traceframe anyway (assuming the
1424 target implements the old QTro packet then). */
1425 if (traceframe_available_memory (&available
, memaddr
, len
))
1427 struct cleanup
*old_chain
;
1429 old_chain
= make_cleanup (VEC_cleanup(mem_range_s
), &available
);
1431 if (VEC_empty (mem_range_s
, available
)
1432 || VEC_index (mem_range_s
, available
, 0)->start
!= memaddr
)
1434 /* Don't read into the traceframe's available
1436 if (!VEC_empty (mem_range_s
, available
))
1438 LONGEST oldlen
= len
;
1440 len
= VEC_index (mem_range_s
, available
, 0)->start
- memaddr
;
1441 gdb_assert (len
<= oldlen
);
1444 do_cleanups (old_chain
);
1446 /* This goes through the topmost target again. */
1447 res
= memory_xfer_live_readonly_partial (ops
, object
,
1448 readbuf
, memaddr
, len
);
1452 /* No use trying further, we know some memory starting
1453 at MEMADDR isn't available. */
1457 /* Don't try to read more than how much is available, in
1458 case the target implements the deprecated QTro packet to
1459 cater for older GDBs (the target's knowledge of read-only
1460 sections may be outdated by now). */
1461 len
= VEC_index (mem_range_s
, available
, 0)->length
;
1463 do_cleanups (old_chain
);
1467 /* Try GDB's internal data cache. */
1468 region
= lookup_mem_region (memaddr
);
1469 /* region->hi == 0 means there's no upper bound. */
1470 if (memaddr
+ len
< region
->hi
|| region
->hi
== 0)
1473 reg_len
= region
->hi
- memaddr
;
1475 switch (region
->attrib
.mode
)
1478 if (writebuf
!= NULL
)
1483 if (readbuf
!= NULL
)
1488 /* We only support writing to flash during "load" for now. */
1489 if (writebuf
!= NULL
)
1490 error (_("Writing to flash memory forbidden in this context"));
1497 if (!ptid_equal (inferior_ptid
, null_ptid
))
1498 inf
= find_inferior_pid (ptid_get_pid (inferior_ptid
));
1503 /* The dcache reads whole cache lines; that doesn't play well
1504 with reading from a trace buffer, because reading outside of
1505 the collected memory range fails. */
1506 && get_traceframe_number () == -1
1507 && (region
->attrib
.cache
1508 || (stack_cache_enabled_p
&& object
== TARGET_OBJECT_STACK_MEMORY
)))
1510 if (readbuf
!= NULL
)
1511 res
= dcache_xfer_memory (ops
, target_dcache
, memaddr
, readbuf
,
1514 /* FIXME drow/2006-08-09: If we're going to preserve const
1515 correctness dcache_xfer_memory should take readbuf and
1517 res
= dcache_xfer_memory (ops
, target_dcache
, memaddr
,
1524 if (readbuf
&& !show_memory_breakpoints
)
1525 breakpoint_restore_shadows (readbuf
, memaddr
, reg_len
);
1530 /* If none of those methods found the memory we wanted, fall back
1531 to a target partial transfer. Normally a single call to
1532 to_xfer_partial is enough; if it doesn't recognize an object
1533 it will call the to_xfer_partial of the next target down.
1534 But for memory this won't do. Memory is the only target
1535 object which can be read from more than one valid target.
1536 A core file, for instance, could have some of memory but
1537 delegate other bits to the target below it. So, we must
1538 manually try all targets. */
1542 res
= ops
->to_xfer_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1543 readbuf
, writebuf
, memaddr
, reg_len
);
1547 /* We want to continue past core files to executables, but not
1548 past a running target's memory. */
1549 if (ops
->to_has_all_memory (ops
))
1554 while (ops
!= NULL
);
1556 if (res
> 0 && readbuf
!= NULL
&& !show_memory_breakpoints
)
1557 breakpoint_restore_shadows (readbuf
, memaddr
, reg_len
);
1559 /* Make sure the cache gets updated no matter what - if we are writing
1560 to the stack. Even if this write is not tagged as such, we still need
1561 to update the cache. */
1566 && !region
->attrib
.cache
1567 && stack_cache_enabled_p
1568 && object
!= TARGET_OBJECT_STACK_MEMORY
)
1570 dcache_update (target_dcache
, memaddr
, (void *) writebuf
, res
);
1573 /* If we still haven't got anything, return the last error. We
1579 restore_show_memory_breakpoints (void *arg
)
1581 show_memory_breakpoints
= (uintptr_t) arg
;
1585 make_show_memory_breakpoints_cleanup (int show
)
1587 int current
= show_memory_breakpoints
;
1589 show_memory_breakpoints
= show
;
1590 return make_cleanup (restore_show_memory_breakpoints
,
1591 (void *) (uintptr_t) current
);
1594 /* For docs see target.h, to_xfer_partial. */
1597 target_xfer_partial (struct target_ops
*ops
,
1598 enum target_object object
, const char *annex
,
1599 void *readbuf
, const void *writebuf
,
1600 ULONGEST offset
, LONGEST len
)
1604 gdb_assert (ops
->to_xfer_partial
!= NULL
);
1606 if (writebuf
&& !may_write_memory
)
1607 error (_("Writing to memory is not allowed (addr %s, len %s)"),
1608 core_addr_to_string_nz (offset
), plongest (len
));
1610 /* If this is a memory transfer, let the memory-specific code
1611 have a look at it instead. Memory transfers are more
1613 if (object
== TARGET_OBJECT_MEMORY
|| object
== TARGET_OBJECT_STACK_MEMORY
)
1614 retval
= memory_xfer_partial (ops
, object
, readbuf
,
1615 writebuf
, offset
, len
);
1618 enum target_object raw_object
= object
;
1620 /* If this is a raw memory transfer, request the normal
1621 memory object from other layers. */
1622 if (raw_object
== TARGET_OBJECT_RAW_MEMORY
)
1623 raw_object
= TARGET_OBJECT_MEMORY
;
1625 retval
= ops
->to_xfer_partial (ops
, raw_object
, annex
, readbuf
,
1626 writebuf
, offset
, len
);
1631 const unsigned char *myaddr
= NULL
;
1633 fprintf_unfiltered (gdb_stdlog
,
1634 "%s:target_xfer_partial "
1635 "(%d, %s, %s, %s, %s, %s) = %s",
1638 (annex
? annex
: "(null)"),
1639 host_address_to_string (readbuf
),
1640 host_address_to_string (writebuf
),
1641 core_addr_to_string_nz (offset
),
1642 plongest (len
), plongest (retval
));
1648 if (retval
> 0 && myaddr
!= NULL
)
1652 fputs_unfiltered (", bytes =", gdb_stdlog
);
1653 for (i
= 0; i
< retval
; i
++)
1655 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
1657 if (targetdebug
< 2 && i
> 0)
1659 fprintf_unfiltered (gdb_stdlog
, " ...");
1662 fprintf_unfiltered (gdb_stdlog
, "\n");
1665 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
1669 fputc_unfiltered ('\n', gdb_stdlog
);
1674 /* Read LEN bytes of target memory at address MEMADDR, placing the results in
1675 GDB's memory at MYADDR. Returns either 0 for success or an errno value
1676 if any error occurs.
1678 If an error occurs, no guarantee is made about the contents of the data at
1679 MYADDR. In particular, the caller should not depend upon partial reads
1680 filling the buffer with good data. There is no way for the caller to know
1681 how much good data might have been transfered anyway. Callers that can
1682 deal with partial reads should call target_read (which will retry until
1683 it makes no progress, and then return how much was transferred). */
1686 target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, int len
)
1688 /* Dispatch to the topmost target, not the flattened current_target.
1689 Memory accesses check target->to_has_(all_)memory, and the
1690 flattened target doesn't inherit those. */
1691 if (target_read (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1692 myaddr
, memaddr
, len
) == len
)
1698 /* Like target_read_memory, but specify explicitly that this is a read from
1699 the target's stack. This may trigger different cache behavior. */
1702 target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, int len
)
1704 /* Dispatch to the topmost target, not the flattened current_target.
1705 Memory accesses check target->to_has_(all_)memory, and the
1706 flattened target doesn't inherit those. */
1708 if (target_read (current_target
.beneath
, TARGET_OBJECT_STACK_MEMORY
, NULL
,
1709 myaddr
, memaddr
, len
) == len
)
1715 /* Write LEN bytes from MYADDR to target memory at address MEMADDR.
1716 Returns either 0 for success or an errno value if any error occurs.
1717 If an error occurs, no guarantee is made about how much data got written.
1718 Callers that can deal with partial writes should call target_write. */
1721 target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, int len
)
1723 /* Dispatch to the topmost target, not the flattened current_target.
1724 Memory accesses check target->to_has_(all_)memory, and the
1725 flattened target doesn't inherit those. */
1726 if (target_write (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1727 myaddr
, memaddr
, len
) == len
)
1733 /* Fetch the target's memory map. */
1736 target_memory_map (void)
1738 VEC(mem_region_s
) *result
;
1739 struct mem_region
*last_one
, *this_one
;
1741 struct target_ops
*t
;
1744 fprintf_unfiltered (gdb_stdlog
, "target_memory_map ()\n");
1746 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1747 if (t
->to_memory_map
!= NULL
)
1753 result
= t
->to_memory_map (t
);
1757 qsort (VEC_address (mem_region_s
, result
),
1758 VEC_length (mem_region_s
, result
),
1759 sizeof (struct mem_region
), mem_region_cmp
);
1761 /* Check that regions do not overlap. Simultaneously assign
1762 a numbering for the "mem" commands to use to refer to
1765 for (ix
= 0; VEC_iterate (mem_region_s
, result
, ix
, this_one
); ix
++)
1767 this_one
->number
= ix
;
1769 if (last_one
&& last_one
->hi
> this_one
->lo
)
1771 warning (_("Overlapping regions in memory map: ignoring"));
1772 VEC_free (mem_region_s
, result
);
1775 last_one
= this_one
;
1782 target_flash_erase (ULONGEST address
, LONGEST length
)
1784 struct target_ops
*t
;
1786 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1787 if (t
->to_flash_erase
!= NULL
)
1790 fprintf_unfiltered (gdb_stdlog
, "target_flash_erase (%s, %s)\n",
1791 hex_string (address
), phex (length
, 0));
1792 t
->to_flash_erase (t
, address
, length
);
1800 target_flash_done (void)
1802 struct target_ops
*t
;
1804 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
1805 if (t
->to_flash_done
!= NULL
)
1808 fprintf_unfiltered (gdb_stdlog
, "target_flash_done\n");
1809 t
->to_flash_done (t
);
1817 show_trust_readonly (struct ui_file
*file
, int from_tty
,
1818 struct cmd_list_element
*c
, const char *value
)
1820 fprintf_filtered (file
,
1821 _("Mode for reading from readonly sections is %s.\n"),
1825 /* More generic transfers. */
1828 default_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1829 const char *annex
, gdb_byte
*readbuf
,
1830 const gdb_byte
*writebuf
, ULONGEST offset
, LONGEST len
)
1832 if (object
== TARGET_OBJECT_MEMORY
1833 && ops
->deprecated_xfer_memory
!= NULL
)
1834 /* If available, fall back to the target's
1835 "deprecated_xfer_memory" method. */
1840 if (writebuf
!= NULL
)
1842 void *buffer
= xmalloc (len
);
1843 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
1845 memcpy (buffer
, writebuf
, len
);
1846 xfered
= ops
->deprecated_xfer_memory (offset
, buffer
, len
,
1847 1/*write*/, NULL
, ops
);
1848 do_cleanups (cleanup
);
1850 if (readbuf
!= NULL
)
1851 xfered
= ops
->deprecated_xfer_memory (offset
, readbuf
, len
,
1852 0/*read*/, NULL
, ops
);
1855 else if (xfered
== 0 && errno
== 0)
1856 /* "deprecated_xfer_memory" uses 0, cross checked against
1857 ERRNO as one indication of an error. */
1862 else if (ops
->beneath
!= NULL
)
1863 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
1864 readbuf
, writebuf
, offset
, len
);
1869 /* The xfer_partial handler for the topmost target. Unlike the default,
1870 it does not need to handle memory specially; it just passes all
1871 requests down the stack. */
1874 current_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1875 const char *annex
, gdb_byte
*readbuf
,
1876 const gdb_byte
*writebuf
, ULONGEST offset
, LONGEST len
)
1878 if (ops
->beneath
!= NULL
)
1879 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
, annex
,
1880 readbuf
, writebuf
, offset
, len
);
1885 /* Target vector read/write partial wrapper functions. */
1888 target_read_partial (struct target_ops
*ops
,
1889 enum target_object object
,
1890 const char *annex
, gdb_byte
*buf
,
1891 ULONGEST offset
, LONGEST len
)
1893 return target_xfer_partial (ops
, object
, annex
, buf
, NULL
, offset
, len
);
1897 target_write_partial (struct target_ops
*ops
,
1898 enum target_object object
,
1899 const char *annex
, const gdb_byte
*buf
,
1900 ULONGEST offset
, LONGEST len
)
1902 return target_xfer_partial (ops
, object
, annex
, NULL
, buf
, offset
, len
);
1905 /* Wrappers to perform the full transfer. */
1907 /* For docs on target_read see target.h. */
1910 target_read (struct target_ops
*ops
,
1911 enum target_object object
,
1912 const char *annex
, gdb_byte
*buf
,
1913 ULONGEST offset
, LONGEST len
)
1917 while (xfered
< len
)
1919 LONGEST xfer
= target_read_partial (ops
, object
, annex
,
1920 (gdb_byte
*) buf
+ xfered
,
1921 offset
+ xfered
, len
- xfered
);
1923 /* Call an observer, notifying them of the xfer progress? */
1934 /* Assuming that the entire [begin, end) range of memory cannot be
1935 read, try to read whatever subrange is possible to read.
1937 The function returns, in RESULT, either zero or one memory block.
1938 If there's a readable subrange at the beginning, it is completely
1939 read and returned. Any further readable subrange will not be read.
1940 Otherwise, if there's a readable subrange at the end, it will be
1941 completely read and returned. Any readable subranges before it
1942 (obviously, not starting at the beginning), will be ignored. In
1943 other cases -- either no readable subrange, or readable subrange(s)
1944 that is neither at the beginning, or end, nothing is returned.
1946 The purpose of this function is to handle a read across a boundary
1947 of accessible memory in a case when memory map is not available.
1948 The above restrictions are fine for this case, but will give
1949 incorrect results if the memory is 'patchy'. However, supporting
1950 'patchy' memory would require trying to read every single byte,
1951 and it seems unacceptable solution. Explicit memory map is
1952 recommended for this case -- and target_read_memory_robust will
1953 take care of reading multiple ranges then. */
1956 read_whatever_is_readable (struct target_ops
*ops
,
1957 ULONGEST begin
, ULONGEST end
,
1958 VEC(memory_read_result_s
) **result
)
1960 gdb_byte
*buf
= xmalloc (end
- begin
);
1961 ULONGEST current_begin
= begin
;
1962 ULONGEST current_end
= end
;
1964 memory_read_result_s r
;
1966 /* If we previously failed to read 1 byte, nothing can be done here. */
1967 if (end
- begin
<= 1)
1973 /* Check that either first or the last byte is readable, and give up
1974 if not. This heuristic is meant to permit reading accessible memory
1975 at the boundary of accessible region. */
1976 if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1977 buf
, begin
, 1) == 1)
1982 else if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1983 buf
+ (end
-begin
) - 1, end
- 1, 1) == 1)
1994 /* Loop invariant is that the [current_begin, current_end) was previously
1995 found to be not readable as a whole.
1997 Note loop condition -- if the range has 1 byte, we can't divide the range
1998 so there's no point trying further. */
1999 while (current_end
- current_begin
> 1)
2001 ULONGEST first_half_begin
, first_half_end
;
2002 ULONGEST second_half_begin
, second_half_end
;
2004 ULONGEST middle
= current_begin
+ (current_end
- current_begin
)/2;
2008 first_half_begin
= current_begin
;
2009 first_half_end
= middle
;
2010 second_half_begin
= middle
;
2011 second_half_end
= current_end
;
2015 first_half_begin
= middle
;
2016 first_half_end
= current_end
;
2017 second_half_begin
= current_begin
;
2018 second_half_end
= middle
;
2021 xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2022 buf
+ (first_half_begin
- begin
),
2024 first_half_end
- first_half_begin
);
2026 if (xfer
== first_half_end
- first_half_begin
)
2028 /* This half reads up fine. So, the error must be in the
2030 current_begin
= second_half_begin
;
2031 current_end
= second_half_end
;
2035 /* This half is not readable. Because we've tried one byte, we
2036 know some part of this half if actually redable. Go to the next
2037 iteration to divide again and try to read.
2039 We don't handle the other half, because this function only tries
2040 to read a single readable subrange. */
2041 current_begin
= first_half_begin
;
2042 current_end
= first_half_end
;
2048 /* The [begin, current_begin) range has been read. */
2050 r
.end
= current_begin
;
2055 /* The [current_end, end) range has been read. */
2056 LONGEST rlen
= end
- current_end
;
2058 r
.data
= xmalloc (rlen
);
2059 memcpy (r
.data
, buf
+ current_end
- begin
, rlen
);
2060 r
.begin
= current_end
;
2064 VEC_safe_push(memory_read_result_s
, (*result
), &r
);
2068 free_memory_read_result_vector (void *x
)
2070 VEC(memory_read_result_s
) *v
= x
;
2071 memory_read_result_s
*current
;
2074 for (ix
= 0; VEC_iterate (memory_read_result_s
, v
, ix
, current
); ++ix
)
2076 xfree (current
->data
);
2078 VEC_free (memory_read_result_s
, v
);
2081 VEC(memory_read_result_s
) *
2082 read_memory_robust (struct target_ops
*ops
, ULONGEST offset
, LONGEST len
)
2084 VEC(memory_read_result_s
) *result
= 0;
2087 while (xfered
< len
)
2089 struct mem_region
*region
= lookup_mem_region (offset
+ xfered
);
2092 /* If there is no explicit region, a fake one should be created. */
2093 gdb_assert (region
);
2095 if (region
->hi
== 0)
2096 rlen
= len
- xfered
;
2098 rlen
= region
->hi
- offset
;
2100 if (region
->attrib
.mode
== MEM_NONE
|| region
->attrib
.mode
== MEM_WO
)
2102 /* Cannot read this region. Note that we can end up here only
2103 if the region is explicitly marked inaccessible, or
2104 'inaccessible-by-default' is in effect. */
2109 LONGEST to_read
= min (len
- xfered
, rlen
);
2110 gdb_byte
*buffer
= (gdb_byte
*)xmalloc (to_read
);
2112 LONGEST xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2113 (gdb_byte
*) buffer
,
2114 offset
+ xfered
, to_read
);
2115 /* Call an observer, notifying them of the xfer progress? */
2118 /* Got an error reading full chunk. See if maybe we can read
2121 read_whatever_is_readable (ops
, offset
+ xfered
,
2122 offset
+ xfered
+ to_read
, &result
);
2127 struct memory_read_result r
;
2129 r
.begin
= offset
+ xfered
;
2130 r
.end
= r
.begin
+ xfer
;
2131 VEC_safe_push (memory_read_result_s
, result
, &r
);
2141 /* An alternative to target_write with progress callbacks. */
2144 target_write_with_progress (struct target_ops
*ops
,
2145 enum target_object object
,
2146 const char *annex
, const gdb_byte
*buf
,
2147 ULONGEST offset
, LONGEST len
,
2148 void (*progress
) (ULONGEST
, void *), void *baton
)
2152 /* Give the progress callback a chance to set up. */
2154 (*progress
) (0, baton
);
2156 while (xfered
< len
)
2158 LONGEST xfer
= target_write_partial (ops
, object
, annex
,
2159 (gdb_byte
*) buf
+ xfered
,
2160 offset
+ xfered
, len
- xfered
);
2168 (*progress
) (xfer
, baton
);
2176 /* For docs on target_write see target.h. */
2179 target_write (struct target_ops
*ops
,
2180 enum target_object object
,
2181 const char *annex
, const gdb_byte
*buf
,
2182 ULONGEST offset
, LONGEST len
)
2184 return target_write_with_progress (ops
, object
, annex
, buf
, offset
, len
,
2188 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2189 the size of the transferred data. PADDING additional bytes are
2190 available in *BUF_P. This is a helper function for
2191 target_read_alloc; see the declaration of that function for more
2195 target_read_alloc_1 (struct target_ops
*ops
, enum target_object object
,
2196 const char *annex
, gdb_byte
**buf_p
, int padding
)
2198 size_t buf_alloc
, buf_pos
;
2202 /* This function does not have a length parameter; it reads the
2203 entire OBJECT). Also, it doesn't support objects fetched partly
2204 from one target and partly from another (in a different stratum,
2205 e.g. a core file and an executable). Both reasons make it
2206 unsuitable for reading memory. */
2207 gdb_assert (object
!= TARGET_OBJECT_MEMORY
);
2209 /* Start by reading up to 4K at a time. The target will throttle
2210 this number down if necessary. */
2212 buf
= xmalloc (buf_alloc
);
2216 n
= target_read_partial (ops
, object
, annex
, &buf
[buf_pos
],
2217 buf_pos
, buf_alloc
- buf_pos
- padding
);
2220 /* An error occurred. */
2226 /* Read all there was. */
2236 /* If the buffer is filling up, expand it. */
2237 if (buf_alloc
< buf_pos
* 2)
2240 buf
= xrealloc (buf
, buf_alloc
);
2247 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
2248 the size of the transferred data. See the declaration in "target.h"
2249 function for more information about the return value. */
2252 target_read_alloc (struct target_ops
*ops
, enum target_object object
,
2253 const char *annex
, gdb_byte
**buf_p
)
2255 return target_read_alloc_1 (ops
, object
, annex
, buf_p
, 0);
2258 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
2259 returned as a string, allocated using xmalloc. If an error occurs
2260 or the transfer is unsupported, NULL is returned. Empty objects
2261 are returned as allocated but empty strings. A warning is issued
2262 if the result contains any embedded NUL bytes. */
2265 target_read_stralloc (struct target_ops
*ops
, enum target_object object
,
2269 LONGEST transferred
;
2271 transferred
= target_read_alloc_1 (ops
, object
, annex
, &buffer
, 1);
2273 if (transferred
< 0)
2276 if (transferred
== 0)
2277 return xstrdup ("");
2279 buffer
[transferred
] = 0;
2280 if (strlen (buffer
) < transferred
)
2281 warning (_("target object %d, annex %s, "
2282 "contained unexpected null characters"),
2283 (int) object
, annex
? annex
: "(none)");
2285 return (char *) buffer
;
2288 /* Memory transfer methods. */
2291 get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
, gdb_byte
*buf
,
2294 /* This method is used to read from an alternate, non-current
2295 target. This read must bypass the overlay support (as symbols
2296 don't match this target), and GDB's internal cache (wrong cache
2297 for this target). */
2298 if (target_read (ops
, TARGET_OBJECT_RAW_MEMORY
, NULL
, buf
, addr
, len
)
2300 memory_error (EIO
, addr
);
2304 get_target_memory_unsigned (struct target_ops
*ops
, CORE_ADDR addr
,
2305 int len
, enum bfd_endian byte_order
)
2307 gdb_byte buf
[sizeof (ULONGEST
)];
2309 gdb_assert (len
<= sizeof (buf
));
2310 get_target_memory (ops
, addr
, buf
, len
);
2311 return extract_unsigned_integer (buf
, len
, byte_order
);
2315 target_insert_breakpoint (struct gdbarch
*gdbarch
,
2316 struct bp_target_info
*bp_tgt
)
2318 if (!may_insert_breakpoints
)
2320 warning (_("May not insert breakpoints"));
2324 return (*current_target
.to_insert_breakpoint
) (gdbarch
, bp_tgt
);
2328 target_remove_breakpoint (struct gdbarch
*gdbarch
,
2329 struct bp_target_info
*bp_tgt
)
2331 /* This is kind of a weird case to handle, but the permission might
2332 have been changed after breakpoints were inserted - in which case
2333 we should just take the user literally and assume that any
2334 breakpoints should be left in place. */
2335 if (!may_insert_breakpoints
)
2337 warning (_("May not remove breakpoints"));
2341 return (*current_target
.to_remove_breakpoint
) (gdbarch
, bp_tgt
);
2345 target_info (char *args
, int from_tty
)
2347 struct target_ops
*t
;
2348 int has_all_mem
= 0;
2350 if (symfile_objfile
!= NULL
)
2351 printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile
->name
);
2353 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2355 if (!(*t
->to_has_memory
) (t
))
2358 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
2361 printf_unfiltered (_("\tWhile running this, "
2362 "GDB does not access memory from...\n"));
2363 printf_unfiltered ("%s:\n", t
->to_longname
);
2364 (t
->to_files_info
) (t
);
2365 has_all_mem
= (*t
->to_has_all_memory
) (t
);
2369 /* This function is called before any new inferior is created, e.g.
2370 by running a program, attaching, or connecting to a target.
2371 It cleans up any state from previous invocations which might
2372 change between runs. This is a subset of what target_preopen
2373 resets (things which might change between targets). */
2376 target_pre_inferior (int from_tty
)
2378 /* Clear out solib state. Otherwise the solib state of the previous
2379 inferior might have survived and is entirely wrong for the new
2380 target. This has been observed on GNU/Linux using glibc 2.3. How
2392 Cannot access memory at address 0xdeadbeef
2395 /* In some OSs, the shared library list is the same/global/shared
2396 across inferiors. If code is shared between processes, so are
2397 memory regions and features. */
2398 if (!gdbarch_has_global_solist (target_gdbarch
))
2400 no_shared_libraries (NULL
, from_tty
);
2402 invalidate_target_mem_regions ();
2404 target_clear_description ();
2408 /* Callback for iterate_over_inferiors. Gets rid of the given
2412 dispose_inferior (struct inferior
*inf
, void *args
)
2414 struct thread_info
*thread
;
2416 thread
= any_thread_of_process (inf
->pid
);
2419 switch_to_thread (thread
->ptid
);
2421 /* Core inferiors actually should be detached, not killed. */
2422 if (target_has_execution
)
2425 target_detach (NULL
, 0);
2431 /* This is to be called by the open routine before it does
2435 target_preopen (int from_tty
)
2439 if (have_inferiors ())
2442 || !have_live_inferiors ()
2443 || query (_("A program is being debugged already. Kill it? ")))
2444 iterate_over_inferiors (dispose_inferior
, NULL
);
2446 error (_("Program not killed."));
2449 /* Calling target_kill may remove the target from the stack. But if
2450 it doesn't (which seems like a win for UDI), remove it now. */
2451 /* Leave the exec target, though. The user may be switching from a
2452 live process to a core of the same program. */
2453 pop_all_targets_above (file_stratum
, 0);
2455 target_pre_inferior (from_tty
);
2458 /* Detach a target after doing deferred register stores. */
2461 target_detach (char *args
, int from_tty
)
2463 struct target_ops
* t
;
2465 if (gdbarch_has_global_breakpoints (target_gdbarch
))
2466 /* Don't remove global breakpoints here. They're removed on
2467 disconnection from the target. */
2470 /* If we're in breakpoints-always-inserted mode, have to remove
2471 them before detaching. */
2472 remove_breakpoints_pid (PIDGET (inferior_ptid
));
2474 prepare_for_detach ();
2476 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2478 if (t
->to_detach
!= NULL
)
2480 t
->to_detach (t
, args
, from_tty
);
2482 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n",
2488 internal_error (__FILE__
, __LINE__
, _("could not find a target to detach"));
2492 target_disconnect (char *args
, int from_tty
)
2494 struct target_ops
*t
;
2496 /* If we're in breakpoints-always-inserted mode or if breakpoints
2497 are global across processes, we have to remove them before
2499 remove_breakpoints ();
2501 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2502 if (t
->to_disconnect
!= NULL
)
2505 fprintf_unfiltered (gdb_stdlog
, "target_disconnect (%s, %d)\n",
2507 t
->to_disconnect (t
, args
, from_tty
);
2515 target_wait (ptid_t ptid
, struct target_waitstatus
*status
, int options
)
2517 struct target_ops
*t
;
2519 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2521 if (t
->to_wait
!= NULL
)
2523 ptid_t retval
= (*t
->to_wait
) (t
, ptid
, status
, options
);
2527 char *status_string
;
2529 status_string
= target_waitstatus_to_string (status
);
2530 fprintf_unfiltered (gdb_stdlog
,
2531 "target_wait (%d, status) = %d, %s\n",
2532 PIDGET (ptid
), PIDGET (retval
),
2534 xfree (status_string
);
2545 target_pid_to_str (ptid_t ptid
)
2547 struct target_ops
*t
;
2549 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2551 if (t
->to_pid_to_str
!= NULL
)
2552 return (*t
->to_pid_to_str
) (t
, ptid
);
2555 return normal_pid_to_str (ptid
);
2559 target_thread_name (struct thread_info
*info
)
2561 struct target_ops
*t
;
2563 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2565 if (t
->to_thread_name
!= NULL
)
2566 return (*t
->to_thread_name
) (info
);
2573 target_resume (ptid_t ptid
, int step
, enum target_signal signal
)
2575 struct target_ops
*t
;
2577 target_dcache_invalidate ();
2579 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2581 if (t
->to_resume
!= NULL
)
2583 t
->to_resume (t
, ptid
, step
, signal
);
2585 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n",
2587 step
? "step" : "continue",
2588 target_signal_to_name (signal
));
2590 registers_changed_ptid (ptid
);
2591 set_executing (ptid
, 1);
2592 set_running (ptid
, 1);
2593 clear_inline_frame_state (ptid
);
2602 target_pass_signals (int numsigs
, unsigned char *pass_signals
)
2604 struct target_ops
*t
;
2606 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2608 if (t
->to_pass_signals
!= NULL
)
2614 fprintf_unfiltered (gdb_stdlog
, "target_pass_signals (%d, {",
2617 for (i
= 0; i
< numsigs
; i
++)
2618 if (pass_signals
[i
])
2619 fprintf_unfiltered (gdb_stdlog
, " %s",
2620 target_signal_to_name (i
));
2622 fprintf_unfiltered (gdb_stdlog
, " })\n");
2625 (*t
->to_pass_signals
) (numsigs
, pass_signals
);
2631 /* Look through the list of possible targets for a target that can
2635 target_follow_fork (int follow_child
)
2637 struct target_ops
*t
;
2639 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2641 if (t
->to_follow_fork
!= NULL
)
2643 int retval
= t
->to_follow_fork (t
, follow_child
);
2646 fprintf_unfiltered (gdb_stdlog
, "target_follow_fork (%d) = %d\n",
2647 follow_child
, retval
);
2652 /* Some target returned a fork event, but did not know how to follow it. */
2653 internal_error (__FILE__
, __LINE__
,
2654 _("could not find a target to follow fork"));
2658 target_mourn_inferior (void)
2660 struct target_ops
*t
;
2662 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2664 if (t
->to_mourn_inferior
!= NULL
)
2666 t
->to_mourn_inferior (t
);
2668 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2670 /* We no longer need to keep handles on any of the object files.
2671 Make sure to release them to avoid unnecessarily locking any
2672 of them while we're not actually debugging. */
2673 bfd_cache_close_all ();
2679 internal_error (__FILE__
, __LINE__
,
2680 _("could not find a target to follow mourn inferior"));
2683 /* Look for a target which can describe architectural features, starting
2684 from TARGET. If we find one, return its description. */
2686 const struct target_desc
*
2687 target_read_description (struct target_ops
*target
)
2689 struct target_ops
*t
;
2691 for (t
= target
; t
!= NULL
; t
= t
->beneath
)
2692 if (t
->to_read_description
!= NULL
)
2694 const struct target_desc
*tdesc
;
2696 tdesc
= t
->to_read_description (t
);
2704 /* The default implementation of to_search_memory.
2705 This implements a basic search of memory, reading target memory and
2706 performing the search here (as opposed to performing the search in on the
2707 target side with, for example, gdbserver). */
2710 simple_search_memory (struct target_ops
*ops
,
2711 CORE_ADDR start_addr
, ULONGEST search_space_len
,
2712 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2713 CORE_ADDR
*found_addrp
)
2715 /* NOTE: also defined in find.c testcase. */
2716 #define SEARCH_CHUNK_SIZE 16000
2717 const unsigned chunk_size
= SEARCH_CHUNK_SIZE
;
2718 /* Buffer to hold memory contents for searching. */
2719 gdb_byte
*search_buf
;
2720 unsigned search_buf_size
;
2721 struct cleanup
*old_cleanups
;
2723 search_buf_size
= chunk_size
+ pattern_len
- 1;
2725 /* No point in trying to allocate a buffer larger than the search space. */
2726 if (search_space_len
< search_buf_size
)
2727 search_buf_size
= search_space_len
;
2729 search_buf
= malloc (search_buf_size
);
2730 if (search_buf
== NULL
)
2731 error (_("Unable to allocate memory to perform the search."));
2732 old_cleanups
= make_cleanup (free_current_contents
, &search_buf
);
2734 /* Prime the search buffer. */
2736 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2737 search_buf
, start_addr
, search_buf_size
) != search_buf_size
)
2739 warning (_("Unable to access target memory at %s, halting search."),
2740 hex_string (start_addr
));
2741 do_cleanups (old_cleanups
);
2745 /* Perform the search.
2747 The loop is kept simple by allocating [N + pattern-length - 1] bytes.
2748 When we've scanned N bytes we copy the trailing bytes to the start and
2749 read in another N bytes. */
2751 while (search_space_len
>= pattern_len
)
2753 gdb_byte
*found_ptr
;
2754 unsigned nr_search_bytes
= min (search_space_len
, search_buf_size
);
2756 found_ptr
= memmem (search_buf
, nr_search_bytes
,
2757 pattern
, pattern_len
);
2759 if (found_ptr
!= NULL
)
2761 CORE_ADDR found_addr
= start_addr
+ (found_ptr
- search_buf
);
2763 *found_addrp
= found_addr
;
2764 do_cleanups (old_cleanups
);
2768 /* Not found in this chunk, skip to next chunk. */
2770 /* Don't let search_space_len wrap here, it's unsigned. */
2771 if (search_space_len
>= chunk_size
)
2772 search_space_len
-= chunk_size
;
2774 search_space_len
= 0;
2776 if (search_space_len
>= pattern_len
)
2778 unsigned keep_len
= search_buf_size
- chunk_size
;
2779 CORE_ADDR read_addr
= start_addr
+ chunk_size
+ keep_len
;
2782 /* Copy the trailing part of the previous iteration to the front
2783 of the buffer for the next iteration. */
2784 gdb_assert (keep_len
== pattern_len
- 1);
2785 memcpy (search_buf
, search_buf
+ chunk_size
, keep_len
);
2787 nr_to_read
= min (search_space_len
- keep_len
, chunk_size
);
2789 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2790 search_buf
+ keep_len
, read_addr
,
2791 nr_to_read
) != nr_to_read
)
2793 warning (_("Unable to access target "
2794 "memory at %s, halting search."),
2795 hex_string (read_addr
));
2796 do_cleanups (old_cleanups
);
2800 start_addr
+= chunk_size
;
2806 do_cleanups (old_cleanups
);
2810 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
2811 sequence of bytes in PATTERN with length PATTERN_LEN.
2813 The result is 1 if found, 0 if not found, and -1 if there was an error
2814 requiring halting of the search (e.g. memory read error).
2815 If the pattern is found the address is recorded in FOUND_ADDRP. */
2818 target_search_memory (CORE_ADDR start_addr
, ULONGEST search_space_len
,
2819 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2820 CORE_ADDR
*found_addrp
)
2822 struct target_ops
*t
;
2825 /* We don't use INHERIT to set current_target.to_search_memory,
2826 so we have to scan the target stack and handle targetdebug
2830 fprintf_unfiltered (gdb_stdlog
, "target_search_memory (%s, ...)\n",
2831 hex_string (start_addr
));
2833 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2834 if (t
->to_search_memory
!= NULL
)
2839 found
= t
->to_search_memory (t
, start_addr
, search_space_len
,
2840 pattern
, pattern_len
, found_addrp
);
2844 /* If a special version of to_search_memory isn't available, use the
2846 found
= simple_search_memory (current_target
.beneath
,
2847 start_addr
, search_space_len
,
2848 pattern
, pattern_len
, found_addrp
);
2852 fprintf_unfiltered (gdb_stdlog
, " = %d\n", found
);
2857 /* Look through the currently pushed targets. If none of them will
2858 be able to restart the currently running process, issue an error
2862 target_require_runnable (void)
2864 struct target_ops
*t
;
2866 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2868 /* If this target knows how to create a new program, then
2869 assume we will still be able to after killing the current
2870 one. Either killing and mourning will not pop T, or else
2871 find_default_run_target will find it again. */
2872 if (t
->to_create_inferior
!= NULL
)
2875 /* Do not worry about thread_stratum targets that can not
2876 create inferiors. Assume they will be pushed again if
2877 necessary, and continue to the process_stratum. */
2878 if (t
->to_stratum
== thread_stratum
2879 || t
->to_stratum
== arch_stratum
)
2882 error (_("The \"%s\" target does not support \"run\". "
2883 "Try \"help target\" or \"continue\"."),
2887 /* This function is only called if the target is running. In that
2888 case there should have been a process_stratum target and it
2889 should either know how to create inferiors, or not... */
2890 internal_error (__FILE__
, __LINE__
, _("No targets found"));
2893 /* Look through the list of possible targets for a target that can
2894 execute a run or attach command without any other data. This is
2895 used to locate the default process stratum.
2897 If DO_MESG is not NULL, the result is always valid (error() is
2898 called for errors); else, return NULL on error. */
2900 static struct target_ops
*
2901 find_default_run_target (char *do_mesg
)
2903 struct target_ops
**t
;
2904 struct target_ops
*runable
= NULL
;
2909 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
2912 if ((*t
)->to_can_run
&& target_can_run (*t
))
2922 error (_("Don't know how to %s. Try \"help target\"."), do_mesg
);
2931 find_default_attach (struct target_ops
*ops
, char *args
, int from_tty
)
2933 struct target_ops
*t
;
2935 t
= find_default_run_target ("attach");
2936 (t
->to_attach
) (t
, args
, from_tty
);
2941 find_default_create_inferior (struct target_ops
*ops
,
2942 char *exec_file
, char *allargs
, char **env
,
2945 struct target_ops
*t
;
2947 t
= find_default_run_target ("run");
2948 (t
->to_create_inferior
) (t
, exec_file
, allargs
, env
, from_tty
);
2953 find_default_can_async_p (void)
2955 struct target_ops
*t
;
2957 /* This may be called before the target is pushed on the stack;
2958 look for the default process stratum. If there's none, gdb isn't
2959 configured with a native debugger, and target remote isn't
2961 t
= find_default_run_target (NULL
);
2962 if (t
&& t
->to_can_async_p
)
2963 return (t
->to_can_async_p
) ();
2968 find_default_is_async_p (void)
2970 struct target_ops
*t
;
2972 /* This may be called before the target is pushed on the stack;
2973 look for the default process stratum. If there's none, gdb isn't
2974 configured with a native debugger, and target remote isn't
2976 t
= find_default_run_target (NULL
);
2977 if (t
&& t
->to_is_async_p
)
2978 return (t
->to_is_async_p
) ();
2983 find_default_supports_non_stop (void)
2985 struct target_ops
*t
;
2987 t
= find_default_run_target (NULL
);
2988 if (t
&& t
->to_supports_non_stop
)
2989 return (t
->to_supports_non_stop
) ();
2994 target_supports_non_stop (void)
2996 struct target_ops
*t
;
2998 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
2999 if (t
->to_supports_non_stop
)
3000 return t
->to_supports_non_stop ();
3007 target_get_osdata (const char *type
)
3009 struct target_ops
*t
;
3011 /* If we're already connected to something that can get us OS
3012 related data, use it. Otherwise, try using the native
3014 if (current_target
.to_stratum
>= process_stratum
)
3015 t
= current_target
.beneath
;
3017 t
= find_default_run_target ("get OS data");
3022 return target_read_stralloc (t
, TARGET_OBJECT_OSDATA
, type
);
3025 /* Determine the current address space of thread PTID. */
3027 struct address_space
*
3028 target_thread_address_space (ptid_t ptid
)
3030 struct address_space
*aspace
;
3031 struct inferior
*inf
;
3032 struct target_ops
*t
;
3034 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3036 if (t
->to_thread_address_space
!= NULL
)
3038 aspace
= t
->to_thread_address_space (t
, ptid
);
3039 gdb_assert (aspace
);
3042 fprintf_unfiltered (gdb_stdlog
,
3043 "target_thread_address_space (%s) = %d\n",
3044 target_pid_to_str (ptid
),
3045 address_space_num (aspace
));
3050 /* Fall-back to the "main" address space of the inferior. */
3051 inf
= find_inferior_pid (ptid_get_pid (ptid
));
3053 if (inf
== NULL
|| inf
->aspace
== NULL
)
3054 internal_error (__FILE__
, __LINE__
,
3055 _("Can't determine the current "
3056 "address space of thread %s\n"),
3057 target_pid_to_str (ptid
));
3063 default_region_ok_for_hw_watchpoint (CORE_ADDR addr
, int len
)
3065 return (len
<= gdbarch_ptr_bit (target_gdbarch
) / TARGET_CHAR_BIT
);
3069 default_watchpoint_addr_within_range (struct target_ops
*target
,
3071 CORE_ADDR start
, int length
)
3073 return addr
>= start
&& addr
< start
+ length
;
3076 static struct gdbarch
*
3077 default_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
3079 return target_gdbarch
;
3095 return_minus_one (void)
3100 /* Find a single runnable target in the stack and return it. If for
3101 some reason there is more than one, return NULL. */
3104 find_run_target (void)
3106 struct target_ops
**t
;
3107 struct target_ops
*runable
= NULL
;
3112 for (t
= target_structs
; t
< target_structs
+ target_struct_size
; ++t
)
3114 if ((*t
)->to_can_run
&& target_can_run (*t
))
3121 return (count
== 1 ? runable
: NULL
);
3125 * Find the next target down the stack from the specified target.
3129 find_target_beneath (struct target_ops
*t
)
3135 /* The inferior process has died. Long live the inferior! */
3138 generic_mourn_inferior (void)
3142 ptid
= inferior_ptid
;
3143 inferior_ptid
= null_ptid
;
3145 if (!ptid_equal (ptid
, null_ptid
))
3147 int pid
= ptid_get_pid (ptid
);
3148 exit_inferior (pid
);
3151 breakpoint_init_inferior (inf_exited
);
3152 registers_changed ();
3154 reopen_exec_file ();
3155 reinit_frame_cache ();
3157 if (deprecated_detach_hook
)
3158 deprecated_detach_hook ();
3161 /* Helper function for child_wait and the derivatives of child_wait.
3162 HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
3163 translation of that in OURSTATUS. */
3165 store_waitstatus (struct target_waitstatus
*ourstatus
, int hoststatus
)
3167 if (WIFEXITED (hoststatus
))
3169 ourstatus
->kind
= TARGET_WAITKIND_EXITED
;
3170 ourstatus
->value
.integer
= WEXITSTATUS (hoststatus
);
3172 else if (!WIFSTOPPED (hoststatus
))
3174 ourstatus
->kind
= TARGET_WAITKIND_SIGNALLED
;
3175 ourstatus
->value
.sig
= target_signal_from_host (WTERMSIG (hoststatus
));
3179 ourstatus
->kind
= TARGET_WAITKIND_STOPPED
;
3180 ourstatus
->value
.sig
= target_signal_from_host (WSTOPSIG (hoststatus
));
3184 /* Convert a normal process ID to a string. Returns the string in a
3188 normal_pid_to_str (ptid_t ptid
)
3190 static char buf
[32];
3192 xsnprintf (buf
, sizeof buf
, "process %d", ptid_get_pid (ptid
));
3197 dummy_pid_to_str (struct target_ops
*ops
, ptid_t ptid
)
3199 return normal_pid_to_str (ptid
);
3202 /* Error-catcher for target_find_memory_regions. */
3204 dummy_find_memory_regions (find_memory_region_ftype ignore1
, void *ignore2
)
3206 error (_("Command not implemented for this target."));
3210 /* Error-catcher for target_make_corefile_notes. */
3212 dummy_make_corefile_notes (bfd
*ignore1
, int *ignore2
)
3214 error (_("Command not implemented for this target."));
3218 /* Error-catcher for target_get_bookmark. */
3220 dummy_get_bookmark (char *ignore1
, int ignore2
)
3226 /* Error-catcher for target_goto_bookmark. */
3228 dummy_goto_bookmark (gdb_byte
*ignore
, int from_tty
)
3233 /* Set up the handful of non-empty slots needed by the dummy target
3237 init_dummy_target (void)
3239 dummy_target
.to_shortname
= "None";
3240 dummy_target
.to_longname
= "None";
3241 dummy_target
.to_doc
= "";
3242 dummy_target
.to_attach
= find_default_attach
;
3243 dummy_target
.to_detach
=
3244 (void (*)(struct target_ops
*, char *, int))target_ignore
;
3245 dummy_target
.to_create_inferior
= find_default_create_inferior
;
3246 dummy_target
.to_can_async_p
= find_default_can_async_p
;
3247 dummy_target
.to_is_async_p
= find_default_is_async_p
;
3248 dummy_target
.to_supports_non_stop
= find_default_supports_non_stop
;
3249 dummy_target
.to_pid_to_str
= dummy_pid_to_str
;
3250 dummy_target
.to_stratum
= dummy_stratum
;
3251 dummy_target
.to_find_memory_regions
= dummy_find_memory_regions
;
3252 dummy_target
.to_make_corefile_notes
= dummy_make_corefile_notes
;
3253 dummy_target
.to_get_bookmark
= dummy_get_bookmark
;
3254 dummy_target
.to_goto_bookmark
= dummy_goto_bookmark
;
3255 dummy_target
.to_xfer_partial
= default_xfer_partial
;
3256 dummy_target
.to_has_all_memory
= (int (*) (struct target_ops
*)) return_zero
;
3257 dummy_target
.to_has_memory
= (int (*) (struct target_ops
*)) return_zero
;
3258 dummy_target
.to_has_stack
= (int (*) (struct target_ops
*)) return_zero
;
3259 dummy_target
.to_has_registers
= (int (*) (struct target_ops
*)) return_zero
;
3260 dummy_target
.to_has_execution
3261 = (int (*) (struct target_ops
*, ptid_t
)) return_zero
;
3262 dummy_target
.to_stopped_by_watchpoint
= return_zero
;
3263 dummy_target
.to_stopped_data_address
=
3264 (int (*) (struct target_ops
*, CORE_ADDR
*)) return_zero
;
3265 dummy_target
.to_magic
= OPS_MAGIC
;
3269 debug_to_open (char *args
, int from_tty
)
3271 debug_target
.to_open (args
, from_tty
);
3273 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
3277 target_close (struct target_ops
*targ
, int quitting
)
3279 if (targ
->to_xclose
!= NULL
)
3280 targ
->to_xclose (targ
, quitting
);
3281 else if (targ
->to_close
!= NULL
)
3282 targ
->to_close (quitting
);
3285 fprintf_unfiltered (gdb_stdlog
, "target_close (%d)\n", quitting
);
3289 target_attach (char *args
, int from_tty
)
3291 struct target_ops
*t
;
3293 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3295 if (t
->to_attach
!= NULL
)
3297 t
->to_attach (t
, args
, from_tty
);
3299 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n",
3305 internal_error (__FILE__
, __LINE__
,
3306 _("could not find a target to attach"));
3310 target_thread_alive (ptid_t ptid
)
3312 struct target_ops
*t
;
3314 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3316 if (t
->to_thread_alive
!= NULL
)
3320 retval
= t
->to_thread_alive (t
, ptid
);
3322 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
3323 PIDGET (ptid
), retval
);
3333 target_find_new_threads (void)
3335 struct target_ops
*t
;
3337 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3339 if (t
->to_find_new_threads
!= NULL
)
3341 t
->to_find_new_threads (t
);
3343 fprintf_unfiltered (gdb_stdlog
, "target_find_new_threads ()\n");
3351 target_stop (ptid_t ptid
)
3355 warning (_("May not interrupt or stop the target, ignoring attempt"));
3359 (*current_target
.to_stop
) (ptid
);
3363 debug_to_post_attach (int pid
)
3365 debug_target
.to_post_attach (pid
);
3367 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
3370 /* Return a pretty printed form of target_waitstatus.
3371 Space for the result is malloc'd, caller must free. */
3374 target_waitstatus_to_string (const struct target_waitstatus
*ws
)
3376 const char *kind_str
= "status->kind = ";
3380 case TARGET_WAITKIND_EXITED
:
3381 return xstrprintf ("%sexited, status = %d",
3382 kind_str
, ws
->value
.integer
);
3383 case TARGET_WAITKIND_STOPPED
:
3384 return xstrprintf ("%sstopped, signal = %s",
3385 kind_str
, target_signal_to_name (ws
->value
.sig
));
3386 case TARGET_WAITKIND_SIGNALLED
:
3387 return xstrprintf ("%ssignalled, signal = %s",
3388 kind_str
, target_signal_to_name (ws
->value
.sig
));
3389 case TARGET_WAITKIND_LOADED
:
3390 return xstrprintf ("%sloaded", kind_str
);
3391 case TARGET_WAITKIND_FORKED
:
3392 return xstrprintf ("%sforked", kind_str
);
3393 case TARGET_WAITKIND_VFORKED
:
3394 return xstrprintf ("%svforked", kind_str
);
3395 case TARGET_WAITKIND_EXECD
:
3396 return xstrprintf ("%sexecd", kind_str
);
3397 case TARGET_WAITKIND_SYSCALL_ENTRY
:
3398 return xstrprintf ("%sentered syscall", kind_str
);
3399 case TARGET_WAITKIND_SYSCALL_RETURN
:
3400 return xstrprintf ("%sexited syscall", kind_str
);
3401 case TARGET_WAITKIND_SPURIOUS
:
3402 return xstrprintf ("%sspurious", kind_str
);
3403 case TARGET_WAITKIND_IGNORE
:
3404 return xstrprintf ("%signore", kind_str
);
3405 case TARGET_WAITKIND_NO_HISTORY
:
3406 return xstrprintf ("%sno-history", kind_str
);
3408 return xstrprintf ("%sunknown???", kind_str
);
3413 debug_print_register (const char * func
,
3414 struct regcache
*regcache
, int regno
)
3416 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
3418 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
3419 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
)
3420 && gdbarch_register_name (gdbarch
, regno
) != NULL
3421 && gdbarch_register_name (gdbarch
, regno
)[0] != '\0')
3422 fprintf_unfiltered (gdb_stdlog
, "(%s)",
3423 gdbarch_register_name (gdbarch
, regno
));
3425 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
3426 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
))
3428 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
3429 int i
, size
= register_size (gdbarch
, regno
);
3430 unsigned char buf
[MAX_REGISTER_SIZE
];
3432 regcache_raw_collect (regcache
, regno
, buf
);
3433 fprintf_unfiltered (gdb_stdlog
, " = ");
3434 for (i
= 0; i
< size
; i
++)
3436 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
3438 if (size
<= sizeof (LONGEST
))
3440 ULONGEST val
= extract_unsigned_integer (buf
, size
, byte_order
);
3442 fprintf_unfiltered (gdb_stdlog
, " %s %s",
3443 core_addr_to_string_nz (val
), plongest (val
));
3446 fprintf_unfiltered (gdb_stdlog
, "\n");
3450 target_fetch_registers (struct regcache
*regcache
, int regno
)
3452 struct target_ops
*t
;
3454 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3456 if (t
->to_fetch_registers
!= NULL
)
3458 t
->to_fetch_registers (t
, regcache
, regno
);
3460 debug_print_register ("target_fetch_registers", regcache
, regno
);
3467 target_store_registers (struct regcache
*regcache
, int regno
)
3469 struct target_ops
*t
;
3471 if (!may_write_registers
)
3472 error (_("Writing to registers is not allowed (regno %d)"), regno
);
3474 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3476 if (t
->to_store_registers
!= NULL
)
3478 t
->to_store_registers (t
, regcache
, regno
);
3481 debug_print_register ("target_store_registers", regcache
, regno
);
3491 target_core_of_thread (ptid_t ptid
)
3493 struct target_ops
*t
;
3495 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3497 if (t
->to_core_of_thread
!= NULL
)
3499 int retval
= t
->to_core_of_thread (t
, ptid
);
3502 fprintf_unfiltered (gdb_stdlog
,
3503 "target_core_of_thread (%d) = %d\n",
3504 PIDGET (ptid
), retval
);
3513 target_verify_memory (const gdb_byte
*data
, CORE_ADDR memaddr
, ULONGEST size
)
3515 struct target_ops
*t
;
3517 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3519 if (t
->to_verify_memory
!= NULL
)
3521 int retval
= t
->to_verify_memory (t
, data
, memaddr
, size
);
3524 fprintf_unfiltered (gdb_stdlog
,
3525 "target_verify_memory (%s, %s) = %d\n",
3526 paddress (target_gdbarch
, memaddr
),
3536 /* The documentation for this function is in its prototype declaration in
3540 target_insert_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
3542 struct target_ops
*t
;
3544 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3545 if (t
->to_insert_mask_watchpoint
!= NULL
)
3549 ret
= t
->to_insert_mask_watchpoint (t
, addr
, mask
, rw
);
3552 fprintf_unfiltered (gdb_stdlog
, "\
3553 target_insert_mask_watchpoint (%s, %s, %d) = %d\n",
3554 core_addr_to_string (addr
),
3555 core_addr_to_string (mask
), rw
, ret
);
3563 /* The documentation for this function is in its prototype declaration in
3567 target_remove_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
3569 struct target_ops
*t
;
3571 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3572 if (t
->to_remove_mask_watchpoint
!= NULL
)
3576 ret
= t
->to_remove_mask_watchpoint (t
, addr
, mask
, rw
);
3579 fprintf_unfiltered (gdb_stdlog
, "\
3580 target_remove_mask_watchpoint (%s, %s, %d) = %d\n",
3581 core_addr_to_string (addr
),
3582 core_addr_to_string (mask
), rw
, ret
);
3590 /* The documentation for this function is in its prototype declaration
3594 target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
)
3596 struct target_ops
*t
;
3598 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3599 if (t
->to_masked_watch_num_registers
!= NULL
)
3600 return t
->to_masked_watch_num_registers (t
, addr
, mask
);
3605 /* The documentation for this function is in its prototype declaration
3609 target_ranged_break_num_registers (void)
3611 struct target_ops
*t
;
3613 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3614 if (t
->to_ranged_break_num_registers
!= NULL
)
3615 return t
->to_ranged_break_num_registers (t
);
3621 debug_to_prepare_to_store (struct regcache
*regcache
)
3623 debug_target
.to_prepare_to_store (regcache
);
3625 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
3629 deprecated_debug_xfer_memory (CORE_ADDR memaddr
, bfd_byte
*myaddr
, int len
,
3630 int write
, struct mem_attrib
*attrib
,
3631 struct target_ops
*target
)
3635 retval
= debug_target
.deprecated_xfer_memory (memaddr
, myaddr
, len
, write
,
3638 fprintf_unfiltered (gdb_stdlog
,
3639 "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d",
3640 paddress (target_gdbarch
, memaddr
), len
,
3641 write
? "write" : "read", retval
);
3647 fputs_unfiltered (", bytes =", gdb_stdlog
);
3648 for (i
= 0; i
< retval
; i
++)
3650 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
3652 if (targetdebug
< 2 && i
> 0)
3654 fprintf_unfiltered (gdb_stdlog
, " ...");
3657 fprintf_unfiltered (gdb_stdlog
, "\n");
3660 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
3664 fputc_unfiltered ('\n', gdb_stdlog
);
3670 debug_to_files_info (struct target_ops
*target
)
3672 debug_target
.to_files_info (target
);
3674 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
3678 debug_to_insert_breakpoint (struct gdbarch
*gdbarch
,
3679 struct bp_target_info
*bp_tgt
)
3683 retval
= debug_target
.to_insert_breakpoint (gdbarch
, bp_tgt
);
3685 fprintf_unfiltered (gdb_stdlog
,
3686 "target_insert_breakpoint (%s, xxx) = %ld\n",
3687 core_addr_to_string (bp_tgt
->placed_address
),
3688 (unsigned long) retval
);
3693 debug_to_remove_breakpoint (struct gdbarch
*gdbarch
,
3694 struct bp_target_info
*bp_tgt
)
3698 retval
= debug_target
.to_remove_breakpoint (gdbarch
, bp_tgt
);
3700 fprintf_unfiltered (gdb_stdlog
,
3701 "target_remove_breakpoint (%s, xxx) = %ld\n",
3702 core_addr_to_string (bp_tgt
->placed_address
),
3703 (unsigned long) retval
);
3708 debug_to_can_use_hw_breakpoint (int type
, int cnt
, int from_tty
)
3712 retval
= debug_target
.to_can_use_hw_breakpoint (type
, cnt
, from_tty
);
3714 fprintf_unfiltered (gdb_stdlog
,
3715 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
3716 (unsigned long) type
,
3717 (unsigned long) cnt
,
3718 (unsigned long) from_tty
,
3719 (unsigned long) retval
);
3724 debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr
, int len
)
3728 retval
= debug_target
.to_region_ok_for_hw_watchpoint (addr
, len
);
3730 fprintf_unfiltered (gdb_stdlog
,
3731 "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n",
3732 core_addr_to_string (addr
), (unsigned long) len
,
3733 core_addr_to_string (retval
));
3738 debug_to_can_accel_watchpoint_condition (CORE_ADDR addr
, int len
, int rw
,
3739 struct expression
*cond
)
3743 retval
= debug_target
.to_can_accel_watchpoint_condition (addr
, len
,
3746 fprintf_unfiltered (gdb_stdlog
,
3747 "target_can_accel_watchpoint_condition "
3748 "(%s, %d, %d, %s) = %ld\n",
3749 core_addr_to_string (addr
), len
, rw
,
3750 host_address_to_string (cond
), (unsigned long) retval
);
3755 debug_to_stopped_by_watchpoint (void)
3759 retval
= debug_target
.to_stopped_by_watchpoint ();
3761 fprintf_unfiltered (gdb_stdlog
,
3762 "target_stopped_by_watchpoint () = %ld\n",
3763 (unsigned long) retval
);
3768 debug_to_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr
)
3772 retval
= debug_target
.to_stopped_data_address (target
, addr
);
3774 fprintf_unfiltered (gdb_stdlog
,
3775 "target_stopped_data_address ([%s]) = %ld\n",
3776 core_addr_to_string (*addr
),
3777 (unsigned long)retval
);
3782 debug_to_watchpoint_addr_within_range (struct target_ops
*target
,
3784 CORE_ADDR start
, int length
)
3788 retval
= debug_target
.to_watchpoint_addr_within_range (target
, addr
,
3791 fprintf_filtered (gdb_stdlog
,
3792 "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n",
3793 core_addr_to_string (addr
), core_addr_to_string (start
),
3799 debug_to_insert_hw_breakpoint (struct gdbarch
*gdbarch
,
3800 struct bp_target_info
*bp_tgt
)
3804 retval
= debug_target
.to_insert_hw_breakpoint (gdbarch
, bp_tgt
);
3806 fprintf_unfiltered (gdb_stdlog
,
3807 "target_insert_hw_breakpoint (%s, xxx) = %ld\n",
3808 core_addr_to_string (bp_tgt
->placed_address
),
3809 (unsigned long) retval
);
3814 debug_to_remove_hw_breakpoint (struct gdbarch
*gdbarch
,
3815 struct bp_target_info
*bp_tgt
)
3819 retval
= debug_target
.to_remove_hw_breakpoint (gdbarch
, bp_tgt
);
3821 fprintf_unfiltered (gdb_stdlog
,
3822 "target_remove_hw_breakpoint (%s, xxx) = %ld\n",
3823 core_addr_to_string (bp_tgt
->placed_address
),
3824 (unsigned long) retval
);
3829 debug_to_insert_watchpoint (CORE_ADDR addr
, int len
, int type
,
3830 struct expression
*cond
)
3834 retval
= debug_target
.to_insert_watchpoint (addr
, len
, type
, cond
);
3836 fprintf_unfiltered (gdb_stdlog
,
3837 "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n",
3838 core_addr_to_string (addr
), len
, type
,
3839 host_address_to_string (cond
), (unsigned long) retval
);
3844 debug_to_remove_watchpoint (CORE_ADDR addr
, int len
, int type
,
3845 struct expression
*cond
)
3849 retval
= debug_target
.to_remove_watchpoint (addr
, len
, type
, cond
);
3851 fprintf_unfiltered (gdb_stdlog
,
3852 "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n",
3853 core_addr_to_string (addr
), len
, type
,
3854 host_address_to_string (cond
), (unsigned long) retval
);
3859 debug_to_terminal_init (void)
3861 debug_target
.to_terminal_init ();
3863 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
3867 debug_to_terminal_inferior (void)
3869 debug_target
.to_terminal_inferior ();
3871 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
3875 debug_to_terminal_ours_for_output (void)
3877 debug_target
.to_terminal_ours_for_output ();
3879 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
3883 debug_to_terminal_ours (void)
3885 debug_target
.to_terminal_ours ();
3887 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
3891 debug_to_terminal_save_ours (void)
3893 debug_target
.to_terminal_save_ours ();
3895 fprintf_unfiltered (gdb_stdlog
, "target_terminal_save_ours ()\n");
3899 debug_to_terminal_info (char *arg
, int from_tty
)
3901 debug_target
.to_terminal_info (arg
, from_tty
);
3903 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
3908 debug_to_load (char *args
, int from_tty
)
3910 debug_target
.to_load (args
, from_tty
);
3912 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
3916 debug_to_post_startup_inferior (ptid_t ptid
)
3918 debug_target
.to_post_startup_inferior (ptid
);
3920 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
3925 debug_to_insert_fork_catchpoint (int pid
)
3929 retval
= debug_target
.to_insert_fork_catchpoint (pid
);
3931 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d) = %d\n",
3938 debug_to_remove_fork_catchpoint (int pid
)
3942 retval
= debug_target
.to_remove_fork_catchpoint (pid
);
3944 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
3951 debug_to_insert_vfork_catchpoint (int pid
)
3955 retval
= debug_target
.to_insert_vfork_catchpoint (pid
);
3957 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d) = %d\n",
3964 debug_to_remove_vfork_catchpoint (int pid
)
3968 retval
= debug_target
.to_remove_vfork_catchpoint (pid
);
3970 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
3977 debug_to_insert_exec_catchpoint (int pid
)
3981 retval
= debug_target
.to_insert_exec_catchpoint (pid
);
3983 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d) = %d\n",
3990 debug_to_remove_exec_catchpoint (int pid
)
3994 retval
= debug_target
.to_remove_exec_catchpoint (pid
);
3996 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
4003 debug_to_has_exited (int pid
, int wait_status
, int *exit_status
)
4007 has_exited
= debug_target
.to_has_exited (pid
, wait_status
, exit_status
);
4009 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
4010 pid
, wait_status
, *exit_status
, has_exited
);
4016 debug_to_can_run (void)
4020 retval
= debug_target
.to_can_run ();
4022 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
4027 static struct gdbarch
*
4028 debug_to_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
4030 struct gdbarch
*retval
;
4032 retval
= debug_target
.to_thread_architecture (ops
, ptid
);
4034 fprintf_unfiltered (gdb_stdlog
,
4035 "target_thread_architecture (%s) = %s [%s]\n",
4036 target_pid_to_str (ptid
),
4037 host_address_to_string (retval
),
4038 gdbarch_bfd_arch_info (retval
)->printable_name
);
4043 debug_to_stop (ptid_t ptid
)
4045 debug_target
.to_stop (ptid
);
4047 fprintf_unfiltered (gdb_stdlog
, "target_stop (%s)\n",
4048 target_pid_to_str (ptid
));
4052 debug_to_rcmd (char *command
,
4053 struct ui_file
*outbuf
)
4055 debug_target
.to_rcmd (command
, outbuf
);
4056 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
4060 debug_to_pid_to_exec_file (int pid
)
4064 exec_file
= debug_target
.to_pid_to_exec_file (pid
);
4066 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
4073 setup_target_debug (void)
4075 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
4077 current_target
.to_open
= debug_to_open
;
4078 current_target
.to_post_attach
= debug_to_post_attach
;
4079 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
4080 current_target
.deprecated_xfer_memory
= deprecated_debug_xfer_memory
;
4081 current_target
.to_files_info
= debug_to_files_info
;
4082 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
4083 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
4084 current_target
.to_can_use_hw_breakpoint
= debug_to_can_use_hw_breakpoint
;
4085 current_target
.to_insert_hw_breakpoint
= debug_to_insert_hw_breakpoint
;
4086 current_target
.to_remove_hw_breakpoint
= debug_to_remove_hw_breakpoint
;
4087 current_target
.to_insert_watchpoint
= debug_to_insert_watchpoint
;
4088 current_target
.to_remove_watchpoint
= debug_to_remove_watchpoint
;
4089 current_target
.to_stopped_by_watchpoint
= debug_to_stopped_by_watchpoint
;
4090 current_target
.to_stopped_data_address
= debug_to_stopped_data_address
;
4091 current_target
.to_watchpoint_addr_within_range
4092 = debug_to_watchpoint_addr_within_range
;
4093 current_target
.to_region_ok_for_hw_watchpoint
4094 = debug_to_region_ok_for_hw_watchpoint
;
4095 current_target
.to_can_accel_watchpoint_condition
4096 = debug_to_can_accel_watchpoint_condition
;
4097 current_target
.to_terminal_init
= debug_to_terminal_init
;
4098 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
4099 current_target
.to_terminal_ours_for_output
4100 = debug_to_terminal_ours_for_output
;
4101 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
4102 current_target
.to_terminal_save_ours
= debug_to_terminal_save_ours
;
4103 current_target
.to_terminal_info
= debug_to_terminal_info
;
4104 current_target
.to_load
= debug_to_load
;
4105 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
4106 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
4107 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
4108 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
4109 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
4110 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
4111 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
4112 current_target
.to_has_exited
= debug_to_has_exited
;
4113 current_target
.to_can_run
= debug_to_can_run
;
4114 current_target
.to_stop
= debug_to_stop
;
4115 current_target
.to_rcmd
= debug_to_rcmd
;
4116 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
4117 current_target
.to_thread_architecture
= debug_to_thread_architecture
;
4121 static char targ_desc
[] =
4122 "Names of targets and files being debugged.\nShows the entire \
4123 stack of targets currently in use (including the exec-file,\n\
4124 core-file, and process, if any), as well as the symbol file name.";
4127 do_monitor_command (char *cmd
,
4130 if ((current_target
.to_rcmd
4131 == (void (*) (char *, struct ui_file
*)) tcomplain
)
4132 || (current_target
.to_rcmd
== debug_to_rcmd
4133 && (debug_target
.to_rcmd
4134 == (void (*) (char *, struct ui_file
*)) tcomplain
)))
4135 error (_("\"monitor\" command not supported by this target."));
4136 target_rcmd (cmd
, gdb_stdtarg
);
4139 /* Print the name of each layers of our target stack. */
4142 maintenance_print_target_stack (char *cmd
, int from_tty
)
4144 struct target_ops
*t
;
4146 printf_filtered (_("The current target stack is:\n"));
4148 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
4150 printf_filtered (" - %s (%s)\n", t
->to_shortname
, t
->to_longname
);
4154 /* Controls if async mode is permitted. */
4155 int target_async_permitted
= 0;
4157 /* The set command writes to this variable. If the inferior is
4158 executing, linux_nat_async_permitted is *not* updated. */
4159 static int target_async_permitted_1
= 0;
4162 set_maintenance_target_async_permitted (char *args
, int from_tty
,
4163 struct cmd_list_element
*c
)
4165 if (have_live_inferiors ())
4167 target_async_permitted_1
= target_async_permitted
;
4168 error (_("Cannot change this setting while the inferior is running."));
4171 target_async_permitted
= target_async_permitted_1
;
4175 show_maintenance_target_async_permitted (struct ui_file
*file
, int from_tty
,
4176 struct cmd_list_element
*c
,
4179 fprintf_filtered (file
,
4180 _("Controlling the inferior in "
4181 "asynchronous mode is %s.\n"), value
);
4184 /* Temporary copies of permission settings. */
4186 static int may_write_registers_1
= 1;
4187 static int may_write_memory_1
= 1;
4188 static int may_insert_breakpoints_1
= 1;
4189 static int may_insert_tracepoints_1
= 1;
4190 static int may_insert_fast_tracepoints_1
= 1;
4191 static int may_stop_1
= 1;
4193 /* Make the user-set values match the real values again. */
4196 update_target_permissions (void)
4198 may_write_registers_1
= may_write_registers
;
4199 may_write_memory_1
= may_write_memory
;
4200 may_insert_breakpoints_1
= may_insert_breakpoints
;
4201 may_insert_tracepoints_1
= may_insert_tracepoints
;
4202 may_insert_fast_tracepoints_1
= may_insert_fast_tracepoints
;
4203 may_stop_1
= may_stop
;
4206 /* The one function handles (most of) the permission flags in the same
4210 set_target_permissions (char *args
, int from_tty
,
4211 struct cmd_list_element
*c
)
4213 if (target_has_execution
)
4215 update_target_permissions ();
4216 error (_("Cannot change this setting while the inferior is running."));
4219 /* Make the real values match the user-changed values. */
4220 may_write_registers
= may_write_registers_1
;
4221 may_insert_breakpoints
= may_insert_breakpoints_1
;
4222 may_insert_tracepoints
= may_insert_tracepoints_1
;
4223 may_insert_fast_tracepoints
= may_insert_fast_tracepoints_1
;
4224 may_stop
= may_stop_1
;
4225 update_observer_mode ();
4228 /* Set memory write permission independently of observer mode. */
4231 set_write_memory_permission (char *args
, int from_tty
,
4232 struct cmd_list_element
*c
)
4234 /* Make the real values match the user-changed values. */
4235 may_write_memory
= may_write_memory_1
;
4236 update_observer_mode ();
4241 initialize_targets (void)
4243 init_dummy_target ();
4244 push_target (&dummy_target
);
4246 add_info ("target", target_info
, targ_desc
);
4247 add_info ("files", target_info
, targ_desc
);
4249 add_setshow_zinteger_cmd ("target", class_maintenance
, &targetdebug
, _("\
4250 Set target debugging."), _("\
4251 Show target debugging."), _("\
4252 When non-zero, target debugging is enabled. Higher numbers are more\n\
4253 verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
4257 &setdebuglist
, &showdebuglist
);
4259 add_setshow_boolean_cmd ("trust-readonly-sections", class_support
,
4260 &trust_readonly
, _("\
4261 Set mode for reading from readonly sections."), _("\
4262 Show mode for reading from readonly sections."), _("\
4263 When this mode is on, memory reads from readonly sections (such as .text)\n\
4264 will be read from the object file instead of from the target. This will\n\
4265 result in significant performance improvement for remote targets."),
4267 show_trust_readonly
,
4268 &setlist
, &showlist
);
4270 add_com ("monitor", class_obscure
, do_monitor_command
,
4271 _("Send a command to the remote monitor (remote targets only)."));
4273 add_cmd ("target-stack", class_maintenance
, maintenance_print_target_stack
,
4274 _("Print the name of each layer of the internal target stack."),
4275 &maintenanceprintlist
);
4277 add_setshow_boolean_cmd ("target-async", no_class
,
4278 &target_async_permitted_1
, _("\
4279 Set whether gdb controls the inferior in asynchronous mode."), _("\
4280 Show whether gdb controls the inferior in asynchronous mode."), _("\
4281 Tells gdb whether to control the inferior in asynchronous mode."),
4282 set_maintenance_target_async_permitted
,
4283 show_maintenance_target_async_permitted
,
4287 add_setshow_boolean_cmd ("stack-cache", class_support
,
4288 &stack_cache_enabled_p_1
, _("\
4289 Set cache use for stack access."), _("\
4290 Show cache use for stack access."), _("\
4291 When on, use the data cache for all stack access, regardless of any\n\
4292 configured memory regions. This improves remote performance significantly.\n\
4293 By default, caching for stack access is on."),
4294 set_stack_cache_enabled_p
,
4295 show_stack_cache_enabled_p
,
4296 &setlist
, &showlist
);
4298 add_setshow_boolean_cmd ("may-write-registers", class_support
,
4299 &may_write_registers_1
, _("\
4300 Set permission to write into registers."), _("\
4301 Show permission to write into registers."), _("\
4302 When this permission is on, GDB may write into the target's registers.\n\
4303 Otherwise, any sort of write attempt will result in an error."),
4304 set_target_permissions
, NULL
,
4305 &setlist
, &showlist
);
4307 add_setshow_boolean_cmd ("may-write-memory", class_support
,
4308 &may_write_memory_1
, _("\
4309 Set permission to write into target memory."), _("\
4310 Show permission to write into target memory."), _("\
4311 When this permission is on, GDB may write into the target's memory.\n\
4312 Otherwise, any sort of write attempt will result in an error."),
4313 set_write_memory_permission
, NULL
,
4314 &setlist
, &showlist
);
4316 add_setshow_boolean_cmd ("may-insert-breakpoints", class_support
,
4317 &may_insert_breakpoints_1
, _("\
4318 Set permission to insert breakpoints in the target."), _("\
4319 Show permission to insert breakpoints in the target."), _("\
4320 When this permission is on, GDB may insert breakpoints in the program.\n\
4321 Otherwise, any sort of insertion attempt will result in an error."),
4322 set_target_permissions
, NULL
,
4323 &setlist
, &showlist
);
4325 add_setshow_boolean_cmd ("may-insert-tracepoints", class_support
,
4326 &may_insert_tracepoints_1
, _("\
4327 Set permission to insert tracepoints in the target."), _("\
4328 Show permission to insert tracepoints in the target."), _("\
4329 When this permission is on, GDB may insert tracepoints in the program.\n\
4330 Otherwise, any sort of insertion attempt will result in an error."),
4331 set_target_permissions
, NULL
,
4332 &setlist
, &showlist
);
4334 add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support
,
4335 &may_insert_fast_tracepoints_1
, _("\
4336 Set permission to insert fast tracepoints in the target."), _("\
4337 Show permission to insert fast tracepoints in the target."), _("\
4338 When this permission is on, GDB may insert fast tracepoints.\n\
4339 Otherwise, any sort of insertion attempt will result in an error."),
4340 set_target_permissions
, NULL
,
4341 &setlist
, &showlist
);
4343 add_setshow_boolean_cmd ("may-interrupt", class_support
,
4345 Set permission to interrupt or signal the target."), _("\
4346 Show permission to interrupt or signal the target."), _("\
4347 When this permission is on, GDB may interrupt/stop the target's execution.\n\
4348 Otherwise, any attempt to interrupt or stop will be ignored."),
4349 set_target_permissions
, NULL
,
4350 &setlist
, &showlist
);
4353 target_dcache
= dcache_init ();