1 /* Select target systems and architectures at runtime for GDB.
3 Copyright (C) 1990-2014 Free Software Foundation, Inc.
5 Contributed by Cygnus Support.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "target-dcache.h"
36 #include "gdb_assert.h"
38 #include "exceptions.h"
39 #include "target-descriptions.h"
40 #include "gdbthread.h"
43 #include "inline-frame.h"
44 #include "tracepoint.h"
45 #include "gdb/fileio.h"
49 static void target_info (char *, int);
51 static void default_terminal_info (struct target_ops
*, const char *, int);
53 static int default_watchpoint_addr_within_range (struct target_ops
*,
54 CORE_ADDR
, CORE_ADDR
, int);
56 static int default_region_ok_for_hw_watchpoint (struct target_ops
*,
59 static void default_rcmd (struct target_ops
*, char *, struct ui_file
*);
61 static ptid_t
default_get_ada_task_ptid (struct target_ops
*self
,
64 static int default_follow_fork (struct target_ops
*self
, int follow_child
,
67 static void default_mourn_inferior (struct target_ops
*self
);
69 static int default_search_memory (struct target_ops
*ops
,
71 ULONGEST search_space_len
,
72 const gdb_byte
*pattern
,
74 CORE_ADDR
*found_addrp
);
76 static void tcomplain (void) ATTRIBUTE_NORETURN
;
78 static int return_zero (struct target_ops
*);
80 static int return_zero_has_execution (struct target_ops
*, ptid_t
);
82 static void target_command (char *, int);
84 static struct target_ops
*find_default_run_target (char *);
86 static struct gdbarch
*default_thread_architecture (struct target_ops
*ops
,
89 static int dummy_find_memory_regions (struct target_ops
*self
,
90 find_memory_region_ftype ignore1
,
93 static char *dummy_make_corefile_notes (struct target_ops
*self
,
94 bfd
*ignore1
, int *ignore2
);
96 static char *default_pid_to_str (struct target_ops
*ops
, ptid_t ptid
);
98 static int find_default_can_async_p (struct target_ops
*ignore
);
100 static int find_default_is_async_p (struct target_ops
*ignore
);
102 static enum exec_direction_kind default_execution_direction
103 (struct target_ops
*self
);
105 static CORE_ADDR
default_target_decr_pc_after_break (struct target_ops
*ops
,
106 struct gdbarch
*gdbarch
);
108 #include "target-delegates.c"
110 static void init_dummy_target (void);
112 static struct target_ops debug_target
;
114 static void debug_to_open (char *, int);
116 static void debug_to_prepare_to_store (struct target_ops
*self
,
119 static void debug_to_files_info (struct target_ops
*);
121 static int debug_to_insert_breakpoint (struct target_ops
*, struct gdbarch
*,
122 struct bp_target_info
*);
124 static int debug_to_remove_breakpoint (struct target_ops
*, struct gdbarch
*,
125 struct bp_target_info
*);
127 static int debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
130 static int debug_to_insert_hw_breakpoint (struct target_ops
*self
,
132 struct bp_target_info
*);
134 static int debug_to_remove_hw_breakpoint (struct target_ops
*self
,
136 struct bp_target_info
*);
138 static int debug_to_insert_watchpoint (struct target_ops
*self
,
140 struct expression
*);
142 static int debug_to_remove_watchpoint (struct target_ops
*self
,
144 struct expression
*);
146 static int debug_to_stopped_data_address (struct target_ops
*, CORE_ADDR
*);
148 static int debug_to_watchpoint_addr_within_range (struct target_ops
*,
149 CORE_ADDR
, CORE_ADDR
, int);
151 static int debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
154 static int debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
156 struct expression
*);
158 static void debug_to_terminal_init (struct target_ops
*self
);
160 static void debug_to_terminal_inferior (struct target_ops
*self
);
162 static void debug_to_terminal_ours_for_output (struct target_ops
*self
);
164 static void debug_to_terminal_save_ours (struct target_ops
*self
);
166 static void debug_to_terminal_ours (struct target_ops
*self
);
168 static void debug_to_load (struct target_ops
*self
, char *, int);
170 static int debug_to_can_run (struct target_ops
*self
);
172 static void debug_to_stop (struct target_ops
*self
, ptid_t
);
174 /* Pointer to array of target architecture structures; the size of the
175 array; the current index into the array; the allocated size of the
177 struct target_ops
**target_structs
;
178 unsigned target_struct_size
;
179 unsigned target_struct_allocsize
;
180 #define DEFAULT_ALLOCSIZE 10
182 /* The initial current target, so that there is always a semi-valid
185 static struct target_ops dummy_target
;
187 /* Top of target stack. */
189 static struct target_ops
*target_stack
;
191 /* The target structure we are currently using to talk to a process
192 or file or whatever "inferior" we have. */
194 struct target_ops current_target
;
196 /* Command list for target. */
198 static struct cmd_list_element
*targetlist
= NULL
;
200 /* Nonzero if we should trust readonly sections from the
201 executable when reading memory. */
203 static int trust_readonly
= 0;
205 /* Nonzero if we should show true memory content including
206 memory breakpoint inserted by gdb. */
208 static int show_memory_breakpoints
= 0;
210 /* These globals control whether GDB attempts to perform these
211 operations; they are useful for targets that need to prevent
212 inadvertant disruption, such as in non-stop mode. */
214 int may_write_registers
= 1;
216 int may_write_memory
= 1;
218 int may_insert_breakpoints
= 1;
220 int may_insert_tracepoints
= 1;
222 int may_insert_fast_tracepoints
= 1;
226 /* Non-zero if we want to see trace of target level stuff. */
228 static unsigned int targetdebug
= 0;
230 show_targetdebug (struct ui_file
*file
, int from_tty
,
231 struct cmd_list_element
*c
, const char *value
)
233 fprintf_filtered (file
, _("Target debugging is %s.\n"), value
);
236 static void setup_target_debug (void);
238 /* The user just typed 'target' without the name of a target. */
241 target_command (char *arg
, int from_tty
)
243 fputs_filtered ("Argument required (target name). Try `help target'\n",
247 /* Default target_has_* methods for process_stratum targets. */
250 default_child_has_all_memory (struct target_ops
*ops
)
252 /* If no inferior selected, then we can't read memory here. */
253 if (ptid_equal (inferior_ptid
, null_ptid
))
260 default_child_has_memory (struct target_ops
*ops
)
262 /* If no inferior selected, then we can't read memory here. */
263 if (ptid_equal (inferior_ptid
, null_ptid
))
270 default_child_has_stack (struct target_ops
*ops
)
272 /* If no inferior selected, there's no stack. */
273 if (ptid_equal (inferior_ptid
, null_ptid
))
280 default_child_has_registers (struct target_ops
*ops
)
282 /* Can't read registers from no inferior. */
283 if (ptid_equal (inferior_ptid
, null_ptid
))
290 default_child_has_execution (struct target_ops
*ops
, ptid_t the_ptid
)
292 /* If there's no thread selected, then we can't make it run through
294 if (ptid_equal (the_ptid
, null_ptid
))
302 target_has_all_memory_1 (void)
304 struct target_ops
*t
;
306 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
307 if (t
->to_has_all_memory (t
))
314 target_has_memory_1 (void)
316 struct target_ops
*t
;
318 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
319 if (t
->to_has_memory (t
))
326 target_has_stack_1 (void)
328 struct target_ops
*t
;
330 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
331 if (t
->to_has_stack (t
))
338 target_has_registers_1 (void)
340 struct target_ops
*t
;
342 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
343 if (t
->to_has_registers (t
))
350 target_has_execution_1 (ptid_t the_ptid
)
352 struct target_ops
*t
;
354 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
355 if (t
->to_has_execution (t
, the_ptid
))
362 target_has_execution_current (void)
364 return target_has_execution_1 (inferior_ptid
);
367 /* Complete initialization of T. This ensures that various fields in
368 T are set, if needed by the target implementation. */
371 complete_target_initialization (struct target_ops
*t
)
373 /* Provide default values for all "must have" methods. */
375 if (t
->to_has_all_memory
== NULL
)
376 t
->to_has_all_memory
= return_zero
;
378 if (t
->to_has_memory
== NULL
)
379 t
->to_has_memory
= return_zero
;
381 if (t
->to_has_stack
== NULL
)
382 t
->to_has_stack
= return_zero
;
384 if (t
->to_has_registers
== NULL
)
385 t
->to_has_registers
= return_zero
;
387 if (t
->to_has_execution
== NULL
)
388 t
->to_has_execution
= return_zero_has_execution
;
390 install_delegators (t
);
393 /* Add possible target architecture T to the list and add a new
394 command 'target T->to_shortname'. Set COMPLETER as the command's
395 completer if not NULL. */
398 add_target_with_completer (struct target_ops
*t
,
399 completer_ftype
*completer
)
401 struct cmd_list_element
*c
;
403 complete_target_initialization (t
);
407 target_struct_allocsize
= DEFAULT_ALLOCSIZE
;
408 target_structs
= (struct target_ops
**) xmalloc
409 (target_struct_allocsize
* sizeof (*target_structs
));
411 if (target_struct_size
>= target_struct_allocsize
)
413 target_struct_allocsize
*= 2;
414 target_structs
= (struct target_ops
**)
415 xrealloc ((char *) target_structs
,
416 target_struct_allocsize
* sizeof (*target_structs
));
418 target_structs
[target_struct_size
++] = t
;
420 if (targetlist
== NULL
)
421 add_prefix_cmd ("target", class_run
, target_command
, _("\
422 Connect to a target machine or process.\n\
423 The first argument is the type or protocol of the target machine.\n\
424 Remaining arguments are interpreted by the target protocol. For more\n\
425 information on the arguments for a particular protocol, type\n\
426 `help target ' followed by the protocol name."),
427 &targetlist
, "target ", 0, &cmdlist
);
428 c
= add_cmd (t
->to_shortname
, no_class
, t
->to_open
, t
->to_doc
,
430 if (completer
!= NULL
)
431 set_cmd_completer (c
, completer
);
434 /* Add a possible target architecture to the list. */
437 add_target (struct target_ops
*t
)
439 add_target_with_completer (t
, NULL
);
445 add_deprecated_target_alias (struct target_ops
*t
, char *alias
)
447 struct cmd_list_element
*c
;
450 /* If we use add_alias_cmd, here, we do not get the deprecated warning,
452 c
= add_cmd (alias
, no_class
, t
->to_open
, t
->to_doc
, &targetlist
);
453 alt
= xstrprintf ("target %s", t
->to_shortname
);
454 deprecate_cmd (c
, alt
);
463 fprintf_unfiltered (gdb_stdlog
, "target_kill ()\n");
465 current_target
.to_kill (¤t_target
);
469 target_load (char *arg
, int from_tty
)
471 target_dcache_invalidate ();
472 (*current_target
.to_load
) (¤t_target
, arg
, from_tty
);
476 target_create_inferior (char *exec_file
, char *args
,
477 char **env
, int from_tty
)
479 struct target_ops
*t
;
481 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
483 if (t
->to_create_inferior
!= NULL
)
485 t
->to_create_inferior (t
, exec_file
, args
, env
, from_tty
);
487 fprintf_unfiltered (gdb_stdlog
,
488 "target_create_inferior (%s, %s, xxx, %d)\n",
489 exec_file
, args
, from_tty
);
494 internal_error (__FILE__
, __LINE__
,
495 _("could not find a target to create inferior"));
499 target_terminal_inferior (void)
501 /* A background resume (``run&'') should leave GDB in control of the
502 terminal. Use target_can_async_p, not target_is_async_p, since at
503 this point the target is not async yet. However, if sync_execution
504 is not set, we know it will become async prior to resume. */
505 if (target_can_async_p () && !sync_execution
)
508 /* If GDB is resuming the inferior in the foreground, install
509 inferior's terminal modes. */
510 (*current_target
.to_terminal_inferior
) (¤t_target
);
516 error (_("You can't do that when your target is `%s'"),
517 current_target
.to_shortname
);
523 error (_("You can't do that without a process to debug."));
527 default_terminal_info (struct target_ops
*self
, const char *args
, int from_tty
)
529 printf_unfiltered (_("No saved terminal information.\n"));
532 /* A default implementation for the to_get_ada_task_ptid target method.
534 This function builds the PTID by using both LWP and TID as part of
535 the PTID lwp and tid elements. The pid used is the pid of the
539 default_get_ada_task_ptid (struct target_ops
*self
, long lwp
, long tid
)
541 return ptid_build (ptid_get_pid (inferior_ptid
), lwp
, tid
);
544 static enum exec_direction_kind
545 default_execution_direction (struct target_ops
*self
)
547 if (!target_can_execute_reverse
)
549 else if (!target_can_async_p ())
552 gdb_assert_not_reached ("\
553 to_execution_direction must be implemented for reverse async");
556 /* Go through the target stack from top to bottom, copying over zero
557 entries in current_target, then filling in still empty entries. In
558 effect, we are doing class inheritance through the pushed target
561 NOTE: cagney/2003-10-17: The problem with this inheritance, as it
562 is currently implemented, is that it discards any knowledge of
563 which target an inherited method originally belonged to.
564 Consequently, new new target methods should instead explicitly and
565 locally search the target stack for the target that can handle the
569 update_current_target (void)
571 struct target_ops
*t
;
573 /* First, reset current's contents. */
574 memset (¤t_target
, 0, sizeof (current_target
));
576 /* Install the delegators. */
577 install_delegators (¤t_target
);
579 current_target
.to_stratum
= target_stack
->to_stratum
;
581 #define INHERIT(FIELD, TARGET) \
582 if (!current_target.FIELD) \
583 current_target.FIELD = (TARGET)->FIELD
585 /* Do not add any new INHERITs here. Instead, use the delegation
586 mechanism provided by make-target-delegates. */
587 for (t
= target_stack
; t
; t
= t
->beneath
)
589 INHERIT (to_shortname
, t
);
590 INHERIT (to_longname
, t
);
591 INHERIT (to_attach_no_wait
, t
);
592 INHERIT (to_have_steppable_watchpoint
, t
);
593 INHERIT (to_have_continuable_watchpoint
, t
);
594 INHERIT (to_has_thread_control
, t
);
598 /* Finally, position the target-stack beneath the squashed
599 "current_target". That way code looking for a non-inherited
600 target method can quickly and simply find it. */
601 current_target
.beneath
= target_stack
;
604 setup_target_debug ();
607 /* Push a new target type into the stack of the existing target accessors,
608 possibly superseding some of the existing accessors.
610 Rather than allow an empty stack, we always have the dummy target at
611 the bottom stratum, so we can call the function vectors without
615 push_target (struct target_ops
*t
)
617 struct target_ops
**cur
;
619 /* Check magic number. If wrong, it probably means someone changed
620 the struct definition, but not all the places that initialize one. */
621 if (t
->to_magic
!= OPS_MAGIC
)
623 fprintf_unfiltered (gdb_stderr
,
624 "Magic number of %s target struct wrong\n",
626 internal_error (__FILE__
, __LINE__
,
627 _("failed internal consistency check"));
630 /* Find the proper stratum to install this target in. */
631 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
633 if ((int) (t
->to_stratum
) >= (int) (*cur
)->to_stratum
)
637 /* If there's already targets at this stratum, remove them. */
638 /* FIXME: cagney/2003-10-15: I think this should be popping all
639 targets to CUR, and not just those at this stratum level. */
640 while ((*cur
) != NULL
&& t
->to_stratum
== (*cur
)->to_stratum
)
642 /* There's already something at this stratum level. Close it,
643 and un-hook it from the stack. */
644 struct target_ops
*tmp
= (*cur
);
646 (*cur
) = (*cur
)->beneath
;
651 /* We have removed all targets in our stratum, now add the new one. */
655 update_current_target ();
658 /* Remove a target_ops vector from the stack, wherever it may be.
659 Return how many times it was removed (0 or 1). */
662 unpush_target (struct target_ops
*t
)
664 struct target_ops
**cur
;
665 struct target_ops
*tmp
;
667 if (t
->to_stratum
== dummy_stratum
)
668 internal_error (__FILE__
, __LINE__
,
669 _("Attempt to unpush the dummy target"));
671 /* Look for the specified target. Note that we assume that a target
672 can only occur once in the target stack. */
674 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
680 /* If we don't find target_ops, quit. Only open targets should be
685 /* Unchain the target. */
687 (*cur
) = (*cur
)->beneath
;
690 update_current_target ();
692 /* Finally close the target. Note we do this after unchaining, so
693 any target method calls from within the target_close
694 implementation don't end up in T anymore. */
701 pop_all_targets_above (enum strata above_stratum
)
703 while ((int) (current_target
.to_stratum
) > (int) above_stratum
)
705 if (!unpush_target (target_stack
))
707 fprintf_unfiltered (gdb_stderr
,
708 "pop_all_targets couldn't find target %s\n",
709 target_stack
->to_shortname
);
710 internal_error (__FILE__
, __LINE__
,
711 _("failed internal consistency check"));
718 pop_all_targets (void)
720 pop_all_targets_above (dummy_stratum
);
723 /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */
726 target_is_pushed (struct target_ops
*t
)
728 struct target_ops
**cur
;
730 /* Check magic number. If wrong, it probably means someone changed
731 the struct definition, but not all the places that initialize one. */
732 if (t
->to_magic
!= OPS_MAGIC
)
734 fprintf_unfiltered (gdb_stderr
,
735 "Magic number of %s target struct wrong\n",
737 internal_error (__FILE__
, __LINE__
,
738 _("failed internal consistency check"));
741 for (cur
= &target_stack
; (*cur
) != NULL
; cur
= &(*cur
)->beneath
)
748 /* Using the objfile specified in OBJFILE, find the address for the
749 current thread's thread-local storage with offset OFFSET. */
751 target_translate_tls_address (struct objfile
*objfile
, CORE_ADDR offset
)
753 volatile CORE_ADDR addr
= 0;
754 struct target_ops
*target
;
756 for (target
= current_target
.beneath
;
758 target
= target
->beneath
)
760 if (target
->to_get_thread_local_address
!= NULL
)
765 && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ()))
767 ptid_t ptid
= inferior_ptid
;
768 volatile struct gdb_exception ex
;
770 TRY_CATCH (ex
, RETURN_MASK_ALL
)
774 /* Fetch the load module address for this objfile. */
775 lm_addr
= gdbarch_fetch_tls_load_module_address (target_gdbarch (),
777 /* If it's 0, throw the appropriate exception. */
779 throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR
,
780 _("TLS load module not found"));
782 addr
= target
->to_get_thread_local_address (target
, ptid
,
785 /* If an error occurred, print TLS related messages here. Otherwise,
786 throw the error to some higher catcher. */
789 int objfile_is_library
= (objfile
->flags
& OBJF_SHARED
);
793 case TLS_NO_LIBRARY_SUPPORT_ERROR
:
794 error (_("Cannot find thread-local variables "
795 "in this thread library."));
797 case TLS_LOAD_MODULE_NOT_FOUND_ERROR
:
798 if (objfile_is_library
)
799 error (_("Cannot find shared library `%s' in dynamic"
800 " linker's load module list"), objfile_name (objfile
));
802 error (_("Cannot find executable file `%s' in dynamic"
803 " linker's load module list"), objfile_name (objfile
));
805 case TLS_NOT_ALLOCATED_YET_ERROR
:
806 if (objfile_is_library
)
807 error (_("The inferior has not yet allocated storage for"
808 " thread-local variables in\n"
809 "the shared library `%s'\n"
811 objfile_name (objfile
), target_pid_to_str (ptid
));
813 error (_("The inferior has not yet allocated storage for"
814 " thread-local variables in\n"
815 "the executable `%s'\n"
817 objfile_name (objfile
), target_pid_to_str (ptid
));
819 case TLS_GENERIC_ERROR
:
820 if (objfile_is_library
)
821 error (_("Cannot find thread-local storage for %s, "
822 "shared library %s:\n%s"),
823 target_pid_to_str (ptid
),
824 objfile_name (objfile
), ex
.message
);
826 error (_("Cannot find thread-local storage for %s, "
827 "executable file %s:\n%s"),
828 target_pid_to_str (ptid
),
829 objfile_name (objfile
), ex
.message
);
832 throw_exception (ex
);
837 /* It wouldn't be wrong here to try a gdbarch method, too; finding
838 TLS is an ABI-specific thing. But we don't do that yet. */
840 error (_("Cannot find thread-local variables on this target"));
846 target_xfer_status_to_string (enum target_xfer_status status
)
848 #define CASE(X) case X: return #X
851 CASE(TARGET_XFER_E_IO
);
852 CASE(TARGET_XFER_UNAVAILABLE
);
861 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
863 /* target_read_string -- read a null terminated string, up to LEN bytes,
864 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
865 Set *STRING to a pointer to malloc'd memory containing the data; the caller
866 is responsible for freeing it. Return the number of bytes successfully
870 target_read_string (CORE_ADDR memaddr
, char **string
, int len
, int *errnop
)
876 int buffer_allocated
;
878 unsigned int nbytes_read
= 0;
882 /* Small for testing. */
883 buffer_allocated
= 4;
884 buffer
= xmalloc (buffer_allocated
);
889 tlen
= MIN (len
, 4 - (memaddr
& 3));
890 offset
= memaddr
& 3;
892 errcode
= target_read_memory (memaddr
& ~3, buf
, sizeof buf
);
895 /* The transfer request might have crossed the boundary to an
896 unallocated region of memory. Retry the transfer, requesting
900 errcode
= target_read_memory (memaddr
, buf
, 1);
905 if (bufptr
- buffer
+ tlen
> buffer_allocated
)
909 bytes
= bufptr
- buffer
;
910 buffer_allocated
*= 2;
911 buffer
= xrealloc (buffer
, buffer_allocated
);
912 bufptr
= buffer
+ bytes
;
915 for (i
= 0; i
< tlen
; i
++)
917 *bufptr
++ = buf
[i
+ offset
];
918 if (buf
[i
+ offset
] == '\000')
920 nbytes_read
+= i
+ 1;
936 struct target_section_table
*
937 target_get_section_table (struct target_ops
*target
)
940 fprintf_unfiltered (gdb_stdlog
, "target_get_section_table ()\n");
942 return (*target
->to_get_section_table
) (target
);
945 /* Find a section containing ADDR. */
947 struct target_section
*
948 target_section_by_addr (struct target_ops
*target
, CORE_ADDR addr
)
950 struct target_section_table
*table
= target_get_section_table (target
);
951 struct target_section
*secp
;
956 for (secp
= table
->sections
; secp
< table
->sections_end
; secp
++)
958 if (addr
>= secp
->addr
&& addr
< secp
->endaddr
)
964 /* Read memory from the live target, even if currently inspecting a
965 traceframe. The return is the same as that of target_read. */
967 static enum target_xfer_status
968 target_read_live_memory (enum target_object object
,
969 ULONGEST memaddr
, gdb_byte
*myaddr
, ULONGEST len
,
970 ULONGEST
*xfered_len
)
972 enum target_xfer_status ret
;
973 struct cleanup
*cleanup
;
975 /* Switch momentarily out of tfind mode so to access live memory.
976 Note that this must not clear global state, such as the frame
977 cache, which must still remain valid for the previous traceframe.
978 We may be _building_ the frame cache at this point. */
979 cleanup
= make_cleanup_restore_traceframe_number ();
980 set_traceframe_number (-1);
982 ret
= target_xfer_partial (current_target
.beneath
, object
, NULL
,
983 myaddr
, NULL
, memaddr
, len
, xfered_len
);
985 do_cleanups (cleanup
);
989 /* Using the set of read-only target sections of OPS, read live
990 read-only memory. Note that the actual reads start from the
991 top-most target again.
993 For interface/parameters/return description see target.h,
996 static enum target_xfer_status
997 memory_xfer_live_readonly_partial (struct target_ops
*ops
,
998 enum target_object object
,
999 gdb_byte
*readbuf
, ULONGEST memaddr
,
1000 ULONGEST len
, ULONGEST
*xfered_len
)
1002 struct target_section
*secp
;
1003 struct target_section_table
*table
;
1005 secp
= target_section_by_addr (ops
, memaddr
);
1007 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1008 secp
->the_bfd_section
)
1011 struct target_section
*p
;
1012 ULONGEST memend
= memaddr
+ len
;
1014 table
= target_get_section_table (ops
);
1016 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
1018 if (memaddr
>= p
->addr
)
1020 if (memend
<= p
->endaddr
)
1022 /* Entire transfer is within this section. */
1023 return target_read_live_memory (object
, memaddr
,
1024 readbuf
, len
, xfered_len
);
1026 else if (memaddr
>= p
->endaddr
)
1028 /* This section ends before the transfer starts. */
1033 /* This section overlaps the transfer. Just do half. */
1034 len
= p
->endaddr
- memaddr
;
1035 return target_read_live_memory (object
, memaddr
,
1036 readbuf
, len
, xfered_len
);
1042 return TARGET_XFER_EOF
;
1045 /* Read memory from more than one valid target. A core file, for
1046 instance, could have some of memory but delegate other bits to
1047 the target below it. So, we must manually try all targets. */
1049 static enum target_xfer_status
1050 raw_memory_xfer_partial (struct target_ops
*ops
, gdb_byte
*readbuf
,
1051 const gdb_byte
*writebuf
, ULONGEST memaddr
, LONGEST len
,
1052 ULONGEST
*xfered_len
)
1054 enum target_xfer_status res
;
1058 res
= ops
->to_xfer_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1059 readbuf
, writebuf
, memaddr
, len
,
1061 if (res
== TARGET_XFER_OK
)
1064 /* Stop if the target reports that the memory is not available. */
1065 if (res
== TARGET_XFER_UNAVAILABLE
)
1068 /* We want to continue past core files to executables, but not
1069 past a running target's memory. */
1070 if (ops
->to_has_all_memory (ops
))
1075 while (ops
!= NULL
);
1077 /* The cache works at the raw memory level. Make sure the cache
1078 gets updated with raw contents no matter what kind of memory
1079 object was originally being written. Note we do write-through
1080 first, so that if it fails, we don't write to the cache contents
1081 that never made it to the target. */
1082 if (writebuf
!= NULL
1083 && !ptid_equal (inferior_ptid
, null_ptid
)
1084 && target_dcache_init_p ()
1085 && (stack_cache_enabled_p () || code_cache_enabled_p ()))
1087 DCACHE
*dcache
= target_dcache_get ();
1089 /* Note that writing to an area of memory which wasn't present
1090 in the cache doesn't cause it to be loaded in. */
1091 dcache_update (dcache
, res
, memaddr
, writebuf
, *xfered_len
);
1097 /* Perform a partial memory transfer.
1098 For docs see target.h, to_xfer_partial. */
1100 static enum target_xfer_status
1101 memory_xfer_partial_1 (struct target_ops
*ops
, enum target_object object
,
1102 gdb_byte
*readbuf
, const gdb_byte
*writebuf
, ULONGEST memaddr
,
1103 ULONGEST len
, ULONGEST
*xfered_len
)
1105 enum target_xfer_status res
;
1107 struct mem_region
*region
;
1108 struct inferior
*inf
;
1110 /* For accesses to unmapped overlay sections, read directly from
1111 files. Must do this first, as MEMADDR may need adjustment. */
1112 if (readbuf
!= NULL
&& overlay_debugging
)
1114 struct obj_section
*section
= find_pc_overlay (memaddr
);
1116 if (pc_in_unmapped_range (memaddr
, section
))
1118 struct target_section_table
*table
1119 = target_get_section_table (ops
);
1120 const char *section_name
= section
->the_bfd_section
->name
;
1122 memaddr
= overlay_mapped_address (memaddr
, section
);
1123 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1124 memaddr
, len
, xfered_len
,
1126 table
->sections_end
,
1131 /* Try the executable files, if "trust-readonly-sections" is set. */
1132 if (readbuf
!= NULL
&& trust_readonly
)
1134 struct target_section
*secp
;
1135 struct target_section_table
*table
;
1137 secp
= target_section_by_addr (ops
, memaddr
);
1139 && (bfd_get_section_flags (secp
->the_bfd_section
->owner
,
1140 secp
->the_bfd_section
)
1143 table
= target_get_section_table (ops
);
1144 return section_table_xfer_memory_partial (readbuf
, writebuf
,
1145 memaddr
, len
, xfered_len
,
1147 table
->sections_end
,
1152 /* If reading unavailable memory in the context of traceframes, and
1153 this address falls within a read-only section, fallback to
1154 reading from live memory. */
1155 if (readbuf
!= NULL
&& get_traceframe_number () != -1)
1157 VEC(mem_range_s
) *available
;
1159 /* If we fail to get the set of available memory, then the
1160 target does not support querying traceframe info, and so we
1161 attempt reading from the traceframe anyway (assuming the
1162 target implements the old QTro packet then). */
1163 if (traceframe_available_memory (&available
, memaddr
, len
))
1165 struct cleanup
*old_chain
;
1167 old_chain
= make_cleanup (VEC_cleanup(mem_range_s
), &available
);
1169 if (VEC_empty (mem_range_s
, available
)
1170 || VEC_index (mem_range_s
, available
, 0)->start
!= memaddr
)
1172 /* Don't read into the traceframe's available
1174 if (!VEC_empty (mem_range_s
, available
))
1176 LONGEST oldlen
= len
;
1178 len
= VEC_index (mem_range_s
, available
, 0)->start
- memaddr
;
1179 gdb_assert (len
<= oldlen
);
1182 do_cleanups (old_chain
);
1184 /* This goes through the topmost target again. */
1185 res
= memory_xfer_live_readonly_partial (ops
, object
,
1188 if (res
== TARGET_XFER_OK
)
1189 return TARGET_XFER_OK
;
1192 /* No use trying further, we know some memory starting
1193 at MEMADDR isn't available. */
1195 return TARGET_XFER_UNAVAILABLE
;
1199 /* Don't try to read more than how much is available, in
1200 case the target implements the deprecated QTro packet to
1201 cater for older GDBs (the target's knowledge of read-only
1202 sections may be outdated by now). */
1203 len
= VEC_index (mem_range_s
, available
, 0)->length
;
1205 do_cleanups (old_chain
);
1209 /* Try GDB's internal data cache. */
1210 region
= lookup_mem_region (memaddr
);
1211 /* region->hi == 0 means there's no upper bound. */
1212 if (memaddr
+ len
< region
->hi
|| region
->hi
== 0)
1215 reg_len
= region
->hi
- memaddr
;
1217 switch (region
->attrib
.mode
)
1220 if (writebuf
!= NULL
)
1221 return TARGET_XFER_E_IO
;
1225 if (readbuf
!= NULL
)
1226 return TARGET_XFER_E_IO
;
1230 /* We only support writing to flash during "load" for now. */
1231 if (writebuf
!= NULL
)
1232 error (_("Writing to flash memory forbidden in this context"));
1236 return TARGET_XFER_E_IO
;
1239 if (!ptid_equal (inferior_ptid
, null_ptid
))
1240 inf
= find_inferior_pid (ptid_get_pid (inferior_ptid
));
1246 /* The dcache reads whole cache lines; that doesn't play well
1247 with reading from a trace buffer, because reading outside of
1248 the collected memory range fails. */
1249 && get_traceframe_number () == -1
1250 && (region
->attrib
.cache
1251 || (stack_cache_enabled_p () && object
== TARGET_OBJECT_STACK_MEMORY
)
1252 || (code_cache_enabled_p () && object
== TARGET_OBJECT_CODE_MEMORY
)))
1254 DCACHE
*dcache
= target_dcache_get_or_init ();
1256 return dcache_read_memory_partial (ops
, dcache
, memaddr
, readbuf
,
1257 reg_len
, xfered_len
);
1260 /* If none of those methods found the memory we wanted, fall back
1261 to a target partial transfer. Normally a single call to
1262 to_xfer_partial is enough; if it doesn't recognize an object
1263 it will call the to_xfer_partial of the next target down.
1264 But for memory this won't do. Memory is the only target
1265 object which can be read from more than one valid target.
1266 A core file, for instance, could have some of memory but
1267 delegate other bits to the target below it. So, we must
1268 manually try all targets. */
1270 res
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, memaddr
, reg_len
,
1273 /* If we still haven't got anything, return the last error. We
1278 /* Perform a partial memory transfer. For docs see target.h,
1281 static enum target_xfer_status
1282 memory_xfer_partial (struct target_ops
*ops
, enum target_object object
,
1283 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1284 ULONGEST memaddr
, ULONGEST len
, ULONGEST
*xfered_len
)
1286 enum target_xfer_status res
;
1288 /* Zero length requests are ok and require no work. */
1290 return TARGET_XFER_EOF
;
1292 /* Fill in READBUF with breakpoint shadows, or WRITEBUF with
1293 breakpoint insns, thus hiding out from higher layers whether
1294 there are software breakpoints inserted in the code stream. */
1295 if (readbuf
!= NULL
)
1297 res
= memory_xfer_partial_1 (ops
, object
, readbuf
, NULL
, memaddr
, len
,
1300 if (res
== TARGET_XFER_OK
&& !show_memory_breakpoints
)
1301 breakpoint_xfer_memory (readbuf
, NULL
, NULL
, memaddr
, *xfered_len
);
1306 struct cleanup
*old_chain
;
1308 /* A large write request is likely to be partially satisfied
1309 by memory_xfer_partial_1. We will continually malloc
1310 and free a copy of the entire write request for breakpoint
1311 shadow handling even though we only end up writing a small
1312 subset of it. Cap writes to 4KB to mitigate this. */
1313 len
= min (4096, len
);
1315 buf
= xmalloc (len
);
1316 old_chain
= make_cleanup (xfree
, buf
);
1317 memcpy (buf
, writebuf
, len
);
1319 breakpoint_xfer_memory (NULL
, buf
, writebuf
, memaddr
, len
);
1320 res
= memory_xfer_partial_1 (ops
, object
, NULL
, buf
, memaddr
, len
,
1323 do_cleanups (old_chain
);
1330 restore_show_memory_breakpoints (void *arg
)
1332 show_memory_breakpoints
= (uintptr_t) arg
;
1336 make_show_memory_breakpoints_cleanup (int show
)
1338 int current
= show_memory_breakpoints
;
1340 show_memory_breakpoints
= show
;
1341 return make_cleanup (restore_show_memory_breakpoints
,
1342 (void *) (uintptr_t) current
);
1345 /* For docs see target.h, to_xfer_partial. */
1347 enum target_xfer_status
1348 target_xfer_partial (struct target_ops
*ops
,
1349 enum target_object object
, const char *annex
,
1350 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
1351 ULONGEST offset
, ULONGEST len
,
1352 ULONGEST
*xfered_len
)
1354 enum target_xfer_status retval
;
1356 gdb_assert (ops
->to_xfer_partial
!= NULL
);
1358 /* Transfer is done when LEN is zero. */
1360 return TARGET_XFER_EOF
;
1362 if (writebuf
&& !may_write_memory
)
1363 error (_("Writing to memory is not allowed (addr %s, len %s)"),
1364 core_addr_to_string_nz (offset
), plongest (len
));
1368 /* If this is a memory transfer, let the memory-specific code
1369 have a look at it instead. Memory transfers are more
1371 if (object
== TARGET_OBJECT_MEMORY
|| object
== TARGET_OBJECT_STACK_MEMORY
1372 || object
== TARGET_OBJECT_CODE_MEMORY
)
1373 retval
= memory_xfer_partial (ops
, object
, readbuf
,
1374 writebuf
, offset
, len
, xfered_len
);
1375 else if (object
== TARGET_OBJECT_RAW_MEMORY
)
1377 /* Request the normal memory object from other layers. */
1378 retval
= raw_memory_xfer_partial (ops
, readbuf
, writebuf
, offset
, len
,
1382 retval
= ops
->to_xfer_partial (ops
, object
, annex
, readbuf
,
1383 writebuf
, offset
, len
, xfered_len
);
1387 const unsigned char *myaddr
= NULL
;
1389 fprintf_unfiltered (gdb_stdlog
,
1390 "%s:target_xfer_partial "
1391 "(%d, %s, %s, %s, %s, %s) = %d, %s",
1394 (annex
? annex
: "(null)"),
1395 host_address_to_string (readbuf
),
1396 host_address_to_string (writebuf
),
1397 core_addr_to_string_nz (offset
),
1398 pulongest (len
), retval
,
1399 pulongest (*xfered_len
));
1405 if (retval
== TARGET_XFER_OK
&& myaddr
!= NULL
)
1409 fputs_unfiltered (", bytes =", gdb_stdlog
);
1410 for (i
= 0; i
< *xfered_len
; i
++)
1412 if ((((intptr_t) &(myaddr
[i
])) & 0xf) == 0)
1414 if (targetdebug
< 2 && i
> 0)
1416 fprintf_unfiltered (gdb_stdlog
, " ...");
1419 fprintf_unfiltered (gdb_stdlog
, "\n");
1422 fprintf_unfiltered (gdb_stdlog
, " %02x", myaddr
[i
] & 0xff);
1426 fputc_unfiltered ('\n', gdb_stdlog
);
1429 /* Check implementations of to_xfer_partial update *XFERED_LEN
1430 properly. Do assertion after printing debug messages, so that we
1431 can find more clues on assertion failure from debugging messages. */
1432 if (retval
== TARGET_XFER_OK
|| retval
== TARGET_XFER_UNAVAILABLE
)
1433 gdb_assert (*xfered_len
> 0);
1438 /* Read LEN bytes of target memory at address MEMADDR, placing the
1439 results in GDB's memory at MYADDR. Returns either 0 for success or
1440 TARGET_XFER_E_IO if any error occurs.
1442 If an error occurs, no guarantee is made about the contents of the data at
1443 MYADDR. In particular, the caller should not depend upon partial reads
1444 filling the buffer with good data. There is no way for the caller to know
1445 how much good data might have been transfered anyway. Callers that can
1446 deal with partial reads should call target_read (which will retry until
1447 it makes no progress, and then return how much was transferred). */
1450 target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1452 /* Dispatch to the topmost target, not the flattened current_target.
1453 Memory accesses check target->to_has_(all_)memory, and the
1454 flattened target doesn't inherit those. */
1455 if (target_read (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1456 myaddr
, memaddr
, len
) == len
)
1459 return TARGET_XFER_E_IO
;
1462 /* Like target_read_memory, but specify explicitly that this is a read
1463 from the target's raw memory. That is, this read bypasses the
1464 dcache, breakpoint shadowing, etc. */
1467 target_read_raw_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1469 /* See comment in target_read_memory about why the request starts at
1470 current_target.beneath. */
1471 if (target_read (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1472 myaddr
, memaddr
, len
) == len
)
1475 return TARGET_XFER_E_IO
;
1478 /* Like target_read_memory, but specify explicitly that this is a read from
1479 the target's stack. This may trigger different cache behavior. */
1482 target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1484 /* See comment in target_read_memory about why the request starts at
1485 current_target.beneath. */
1486 if (target_read (current_target
.beneath
, TARGET_OBJECT_STACK_MEMORY
, NULL
,
1487 myaddr
, memaddr
, len
) == len
)
1490 return TARGET_XFER_E_IO
;
1493 /* Like target_read_memory, but specify explicitly that this is a read from
1494 the target's code. This may trigger different cache behavior. */
1497 target_read_code (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
)
1499 /* See comment in target_read_memory about why the request starts at
1500 current_target.beneath. */
1501 if (target_read (current_target
.beneath
, TARGET_OBJECT_CODE_MEMORY
, NULL
,
1502 myaddr
, memaddr
, len
) == len
)
1505 return TARGET_XFER_E_IO
;
1508 /* Write LEN bytes from MYADDR to target memory at address MEMADDR.
1509 Returns either 0 for success or TARGET_XFER_E_IO if any
1510 error occurs. If an error occurs, no guarantee is made about how
1511 much data got written. Callers that can deal with partial writes
1512 should call target_write. */
1515 target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1517 /* See comment in target_read_memory about why the request starts at
1518 current_target.beneath. */
1519 if (target_write (current_target
.beneath
, TARGET_OBJECT_MEMORY
, NULL
,
1520 myaddr
, memaddr
, len
) == len
)
1523 return TARGET_XFER_E_IO
;
1526 /* Write LEN bytes from MYADDR to target raw memory at address
1527 MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO
1528 if any error occurs. If an error occurs, no guarantee is made
1529 about how much data got written. Callers that can deal with
1530 partial writes should call target_write. */
1533 target_write_raw_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, ssize_t len
)
1535 /* See comment in target_read_memory about why the request starts at
1536 current_target.beneath. */
1537 if (target_write (current_target
.beneath
, TARGET_OBJECT_RAW_MEMORY
, NULL
,
1538 myaddr
, memaddr
, len
) == len
)
1541 return TARGET_XFER_E_IO
;
1544 /* Fetch the target's memory map. */
1547 target_memory_map (void)
1549 VEC(mem_region_s
) *result
;
1550 struct mem_region
*last_one
, *this_one
;
1552 struct target_ops
*t
;
1555 fprintf_unfiltered (gdb_stdlog
, "target_memory_map ()\n");
1557 result
= current_target
.to_memory_map (¤t_target
);
1561 qsort (VEC_address (mem_region_s
, result
),
1562 VEC_length (mem_region_s
, result
),
1563 sizeof (struct mem_region
), mem_region_cmp
);
1565 /* Check that regions do not overlap. Simultaneously assign
1566 a numbering for the "mem" commands to use to refer to
1569 for (ix
= 0; VEC_iterate (mem_region_s
, result
, ix
, this_one
); ix
++)
1571 this_one
->number
= ix
;
1573 if (last_one
&& last_one
->hi
> this_one
->lo
)
1575 warning (_("Overlapping regions in memory map: ignoring"));
1576 VEC_free (mem_region_s
, result
);
1579 last_one
= this_one
;
1586 target_flash_erase (ULONGEST address
, LONGEST length
)
1589 fprintf_unfiltered (gdb_stdlog
, "target_flash_erase (%s, %s)\n",
1590 hex_string (address
), phex (length
, 0));
1591 current_target
.to_flash_erase (¤t_target
, address
, length
);
1595 target_flash_done (void)
1598 fprintf_unfiltered (gdb_stdlog
, "target_flash_done\n");
1599 current_target
.to_flash_done (¤t_target
);
1603 show_trust_readonly (struct ui_file
*file
, int from_tty
,
1604 struct cmd_list_element
*c
, const char *value
)
1606 fprintf_filtered (file
,
1607 _("Mode for reading from readonly sections is %s.\n"),
1611 /* Target vector read/write partial wrapper functions. */
1613 static enum target_xfer_status
1614 target_read_partial (struct target_ops
*ops
,
1615 enum target_object object
,
1616 const char *annex
, gdb_byte
*buf
,
1617 ULONGEST offset
, ULONGEST len
,
1618 ULONGEST
*xfered_len
)
1620 return target_xfer_partial (ops
, object
, annex
, buf
, NULL
, offset
, len
,
1624 static enum target_xfer_status
1625 target_write_partial (struct target_ops
*ops
,
1626 enum target_object object
,
1627 const char *annex
, const gdb_byte
*buf
,
1628 ULONGEST offset
, LONGEST len
, ULONGEST
*xfered_len
)
1630 return target_xfer_partial (ops
, object
, annex
, NULL
, buf
, offset
, len
,
1634 /* Wrappers to perform the full transfer. */
1636 /* For docs on target_read see target.h. */
1639 target_read (struct target_ops
*ops
,
1640 enum target_object object
,
1641 const char *annex
, gdb_byte
*buf
,
1642 ULONGEST offset
, LONGEST len
)
1646 while (xfered
< len
)
1648 ULONGEST xfered_len
;
1649 enum target_xfer_status status
;
1651 status
= target_read_partial (ops
, object
, annex
,
1652 (gdb_byte
*) buf
+ xfered
,
1653 offset
+ xfered
, len
- xfered
,
1656 /* Call an observer, notifying them of the xfer progress? */
1657 if (status
== TARGET_XFER_EOF
)
1659 else if (status
== TARGET_XFER_OK
)
1661 xfered
+= xfered_len
;
1671 /* Assuming that the entire [begin, end) range of memory cannot be
1672 read, try to read whatever subrange is possible to read.
1674 The function returns, in RESULT, either zero or one memory block.
1675 If there's a readable subrange at the beginning, it is completely
1676 read and returned. Any further readable subrange will not be read.
1677 Otherwise, if there's a readable subrange at the end, it will be
1678 completely read and returned. Any readable subranges before it
1679 (obviously, not starting at the beginning), will be ignored. In
1680 other cases -- either no readable subrange, or readable subrange(s)
1681 that is neither at the beginning, or end, nothing is returned.
1683 The purpose of this function is to handle a read across a boundary
1684 of accessible memory in a case when memory map is not available.
1685 The above restrictions are fine for this case, but will give
1686 incorrect results if the memory is 'patchy'. However, supporting
1687 'patchy' memory would require trying to read every single byte,
1688 and it seems unacceptable solution. Explicit memory map is
1689 recommended for this case -- and target_read_memory_robust will
1690 take care of reading multiple ranges then. */
1693 read_whatever_is_readable (struct target_ops
*ops
,
1694 ULONGEST begin
, ULONGEST end
,
1695 VEC(memory_read_result_s
) **result
)
1697 gdb_byte
*buf
= xmalloc (end
- begin
);
1698 ULONGEST current_begin
= begin
;
1699 ULONGEST current_end
= end
;
1701 memory_read_result_s r
;
1702 ULONGEST xfered_len
;
1704 /* If we previously failed to read 1 byte, nothing can be done here. */
1705 if (end
- begin
<= 1)
1711 /* Check that either first or the last byte is readable, and give up
1712 if not. This heuristic is meant to permit reading accessible memory
1713 at the boundary of accessible region. */
1714 if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1715 buf
, begin
, 1, &xfered_len
) == TARGET_XFER_OK
)
1720 else if (target_read_partial (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1721 buf
+ (end
-begin
) - 1, end
- 1, 1,
1722 &xfered_len
) == TARGET_XFER_OK
)
1733 /* Loop invariant is that the [current_begin, current_end) was previously
1734 found to be not readable as a whole.
1736 Note loop condition -- if the range has 1 byte, we can't divide the range
1737 so there's no point trying further. */
1738 while (current_end
- current_begin
> 1)
1740 ULONGEST first_half_begin
, first_half_end
;
1741 ULONGEST second_half_begin
, second_half_end
;
1743 ULONGEST middle
= current_begin
+ (current_end
- current_begin
)/2;
1747 first_half_begin
= current_begin
;
1748 first_half_end
= middle
;
1749 second_half_begin
= middle
;
1750 second_half_end
= current_end
;
1754 first_half_begin
= middle
;
1755 first_half_end
= current_end
;
1756 second_half_begin
= current_begin
;
1757 second_half_end
= middle
;
1760 xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1761 buf
+ (first_half_begin
- begin
),
1763 first_half_end
- first_half_begin
);
1765 if (xfer
== first_half_end
- first_half_begin
)
1767 /* This half reads up fine. So, the error must be in the
1769 current_begin
= second_half_begin
;
1770 current_end
= second_half_end
;
1774 /* This half is not readable. Because we've tried one byte, we
1775 know some part of this half if actually redable. Go to the next
1776 iteration to divide again and try to read.
1778 We don't handle the other half, because this function only tries
1779 to read a single readable subrange. */
1780 current_begin
= first_half_begin
;
1781 current_end
= first_half_end
;
1787 /* The [begin, current_begin) range has been read. */
1789 r
.end
= current_begin
;
1794 /* The [current_end, end) range has been read. */
1795 LONGEST rlen
= end
- current_end
;
1797 r
.data
= xmalloc (rlen
);
1798 memcpy (r
.data
, buf
+ current_end
- begin
, rlen
);
1799 r
.begin
= current_end
;
1803 VEC_safe_push(memory_read_result_s
, (*result
), &r
);
1807 free_memory_read_result_vector (void *x
)
1809 VEC(memory_read_result_s
) *v
= x
;
1810 memory_read_result_s
*current
;
1813 for (ix
= 0; VEC_iterate (memory_read_result_s
, v
, ix
, current
); ++ix
)
1815 xfree (current
->data
);
1817 VEC_free (memory_read_result_s
, v
);
1820 VEC(memory_read_result_s
) *
1821 read_memory_robust (struct target_ops
*ops
, ULONGEST offset
, LONGEST len
)
1823 VEC(memory_read_result_s
) *result
= 0;
1826 while (xfered
< len
)
1828 struct mem_region
*region
= lookup_mem_region (offset
+ xfered
);
1831 /* If there is no explicit region, a fake one should be created. */
1832 gdb_assert (region
);
1834 if (region
->hi
== 0)
1835 rlen
= len
- xfered
;
1837 rlen
= region
->hi
- offset
;
1839 if (region
->attrib
.mode
== MEM_NONE
|| region
->attrib
.mode
== MEM_WO
)
1841 /* Cannot read this region. Note that we can end up here only
1842 if the region is explicitly marked inaccessible, or
1843 'inaccessible-by-default' is in effect. */
1848 LONGEST to_read
= min (len
- xfered
, rlen
);
1849 gdb_byte
*buffer
= (gdb_byte
*)xmalloc (to_read
);
1851 LONGEST xfer
= target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
1852 (gdb_byte
*) buffer
,
1853 offset
+ xfered
, to_read
);
1854 /* Call an observer, notifying them of the xfer progress? */
1857 /* Got an error reading full chunk. See if maybe we can read
1860 read_whatever_is_readable (ops
, offset
+ xfered
,
1861 offset
+ xfered
+ to_read
, &result
);
1866 struct memory_read_result r
;
1868 r
.begin
= offset
+ xfered
;
1869 r
.end
= r
.begin
+ xfer
;
1870 VEC_safe_push (memory_read_result_s
, result
, &r
);
1880 /* An alternative to target_write with progress callbacks. */
1883 target_write_with_progress (struct target_ops
*ops
,
1884 enum target_object object
,
1885 const char *annex
, const gdb_byte
*buf
,
1886 ULONGEST offset
, LONGEST len
,
1887 void (*progress
) (ULONGEST
, void *), void *baton
)
1891 /* Give the progress callback a chance to set up. */
1893 (*progress
) (0, baton
);
1895 while (xfered
< len
)
1897 ULONGEST xfered_len
;
1898 enum target_xfer_status status
;
1900 status
= target_write_partial (ops
, object
, annex
,
1901 (gdb_byte
*) buf
+ xfered
,
1902 offset
+ xfered
, len
- xfered
,
1905 if (status
!= TARGET_XFER_OK
)
1906 return status
== TARGET_XFER_EOF
? xfered
: -1;
1909 (*progress
) (xfered_len
, baton
);
1911 xfered
+= xfered_len
;
1917 /* For docs on target_write see target.h. */
1920 target_write (struct target_ops
*ops
,
1921 enum target_object object
,
1922 const char *annex
, const gdb_byte
*buf
,
1923 ULONGEST offset
, LONGEST len
)
1925 return target_write_with_progress (ops
, object
, annex
, buf
, offset
, len
,
1929 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
1930 the size of the transferred data. PADDING additional bytes are
1931 available in *BUF_P. This is a helper function for
1932 target_read_alloc; see the declaration of that function for more
1936 target_read_alloc_1 (struct target_ops
*ops
, enum target_object object
,
1937 const char *annex
, gdb_byte
**buf_p
, int padding
)
1939 size_t buf_alloc
, buf_pos
;
1942 /* This function does not have a length parameter; it reads the
1943 entire OBJECT). Also, it doesn't support objects fetched partly
1944 from one target and partly from another (in a different stratum,
1945 e.g. a core file and an executable). Both reasons make it
1946 unsuitable for reading memory. */
1947 gdb_assert (object
!= TARGET_OBJECT_MEMORY
);
1949 /* Start by reading up to 4K at a time. The target will throttle
1950 this number down if necessary. */
1952 buf
= xmalloc (buf_alloc
);
1956 ULONGEST xfered_len
;
1957 enum target_xfer_status status
;
1959 status
= target_read_partial (ops
, object
, annex
, &buf
[buf_pos
],
1960 buf_pos
, buf_alloc
- buf_pos
- padding
,
1963 if (status
== TARGET_XFER_EOF
)
1965 /* Read all there was. */
1972 else if (status
!= TARGET_XFER_OK
)
1974 /* An error occurred. */
1976 return TARGET_XFER_E_IO
;
1979 buf_pos
+= xfered_len
;
1981 /* If the buffer is filling up, expand it. */
1982 if (buf_alloc
< buf_pos
* 2)
1985 buf
= xrealloc (buf
, buf_alloc
);
1992 /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
1993 the size of the transferred data. See the declaration in "target.h"
1994 function for more information about the return value. */
1997 target_read_alloc (struct target_ops
*ops
, enum target_object object
,
1998 const char *annex
, gdb_byte
**buf_p
)
2000 return target_read_alloc_1 (ops
, object
, annex
, buf_p
, 0);
2003 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
2004 returned as a string, allocated using xmalloc. If an error occurs
2005 or the transfer is unsupported, NULL is returned. Empty objects
2006 are returned as allocated but empty strings. A warning is issued
2007 if the result contains any embedded NUL bytes. */
2010 target_read_stralloc (struct target_ops
*ops
, enum target_object object
,
2015 LONGEST i
, transferred
;
2017 transferred
= target_read_alloc_1 (ops
, object
, annex
, &buffer
, 1);
2018 bufstr
= (char *) buffer
;
2020 if (transferred
< 0)
2023 if (transferred
== 0)
2024 return xstrdup ("");
2026 bufstr
[transferred
] = 0;
2028 /* Check for embedded NUL bytes; but allow trailing NULs. */
2029 for (i
= strlen (bufstr
); i
< transferred
; i
++)
2032 warning (_("target object %d, annex %s, "
2033 "contained unexpected null characters"),
2034 (int) object
, annex
? annex
: "(none)");
2041 /* Memory transfer methods. */
2044 get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
, gdb_byte
*buf
,
2047 /* This method is used to read from an alternate, non-current
2048 target. This read must bypass the overlay support (as symbols
2049 don't match this target), and GDB's internal cache (wrong cache
2050 for this target). */
2051 if (target_read (ops
, TARGET_OBJECT_RAW_MEMORY
, NULL
, buf
, addr
, len
)
2053 memory_error (TARGET_XFER_E_IO
, addr
);
2057 get_target_memory_unsigned (struct target_ops
*ops
, CORE_ADDR addr
,
2058 int len
, enum bfd_endian byte_order
)
2060 gdb_byte buf
[sizeof (ULONGEST
)];
2062 gdb_assert (len
<= sizeof (buf
));
2063 get_target_memory (ops
, addr
, buf
, len
);
2064 return extract_unsigned_integer (buf
, len
, byte_order
);
2070 target_insert_breakpoint (struct gdbarch
*gdbarch
,
2071 struct bp_target_info
*bp_tgt
)
2073 if (!may_insert_breakpoints
)
2075 warning (_("May not insert breakpoints"));
2079 return current_target
.to_insert_breakpoint (¤t_target
,
2086 target_remove_breakpoint (struct gdbarch
*gdbarch
,
2087 struct bp_target_info
*bp_tgt
)
2089 /* This is kind of a weird case to handle, but the permission might
2090 have been changed after breakpoints were inserted - in which case
2091 we should just take the user literally and assume that any
2092 breakpoints should be left in place. */
2093 if (!may_insert_breakpoints
)
2095 warning (_("May not remove breakpoints"));
2099 return current_target
.to_remove_breakpoint (¤t_target
,
2104 target_info (char *args
, int from_tty
)
2106 struct target_ops
*t
;
2107 int has_all_mem
= 0;
2109 if (symfile_objfile
!= NULL
)
2110 printf_unfiltered (_("Symbols from \"%s\".\n"),
2111 objfile_name (symfile_objfile
));
2113 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2115 if (!(*t
->to_has_memory
) (t
))
2118 if ((int) (t
->to_stratum
) <= (int) dummy_stratum
)
2121 printf_unfiltered (_("\tWhile running this, "
2122 "GDB does not access memory from...\n"));
2123 printf_unfiltered ("%s:\n", t
->to_longname
);
2124 (t
->to_files_info
) (t
);
2125 has_all_mem
= (*t
->to_has_all_memory
) (t
);
2129 /* This function is called before any new inferior is created, e.g.
2130 by running a program, attaching, or connecting to a target.
2131 It cleans up any state from previous invocations which might
2132 change between runs. This is a subset of what target_preopen
2133 resets (things which might change between targets). */
2136 target_pre_inferior (int from_tty
)
2138 /* Clear out solib state. Otherwise the solib state of the previous
2139 inferior might have survived and is entirely wrong for the new
2140 target. This has been observed on GNU/Linux using glibc 2.3. How
2152 Cannot access memory at address 0xdeadbeef
2155 /* In some OSs, the shared library list is the same/global/shared
2156 across inferiors. If code is shared between processes, so are
2157 memory regions and features. */
2158 if (!gdbarch_has_global_solist (target_gdbarch ()))
2160 no_shared_libraries (NULL
, from_tty
);
2162 invalidate_target_mem_regions ();
2164 target_clear_description ();
2167 agent_capability_invalidate ();
2170 /* Callback for iterate_over_inferiors. Gets rid of the given
2174 dispose_inferior (struct inferior
*inf
, void *args
)
2176 struct thread_info
*thread
;
2178 thread
= any_thread_of_process (inf
->pid
);
2181 switch_to_thread (thread
->ptid
);
2183 /* Core inferiors actually should be detached, not killed. */
2184 if (target_has_execution
)
2187 target_detach (NULL
, 0);
2193 /* This is to be called by the open routine before it does
2197 target_preopen (int from_tty
)
2201 if (have_inferiors ())
2204 || !have_live_inferiors ()
2205 || query (_("A program is being debugged already. Kill it? ")))
2206 iterate_over_inferiors (dispose_inferior
, NULL
);
2208 error (_("Program not killed."));
2211 /* Calling target_kill may remove the target from the stack. But if
2212 it doesn't (which seems like a win for UDI), remove it now. */
2213 /* Leave the exec target, though. The user may be switching from a
2214 live process to a core of the same program. */
2215 pop_all_targets_above (file_stratum
);
2217 target_pre_inferior (from_tty
);
2220 /* Detach a target after doing deferred register stores. */
2223 target_detach (const char *args
, int from_tty
)
2225 struct target_ops
* t
;
2227 if (gdbarch_has_global_breakpoints (target_gdbarch ()))
2228 /* Don't remove global breakpoints here. They're removed on
2229 disconnection from the target. */
2232 /* If we're in breakpoints-always-inserted mode, have to remove
2233 them before detaching. */
2234 remove_breakpoints_pid (ptid_get_pid (inferior_ptid
));
2236 prepare_for_detach ();
2238 current_target
.to_detach (¤t_target
, args
, from_tty
);
2240 fprintf_unfiltered (gdb_stdlog
, "target_detach (%s, %d)\n",
2245 target_disconnect (char *args
, int from_tty
)
2247 /* If we're in breakpoints-always-inserted mode or if breakpoints
2248 are global across processes, we have to remove them before
2250 remove_breakpoints ();
2253 fprintf_unfiltered (gdb_stdlog
, "target_disconnect (%s, %d)\n",
2255 current_target
.to_disconnect (¤t_target
, args
, from_tty
);
2259 target_wait (ptid_t ptid
, struct target_waitstatus
*status
, int options
)
2261 struct target_ops
*t
;
2262 ptid_t retval
= (current_target
.to_wait
) (¤t_target
, ptid
,
2267 char *status_string
;
2268 char *options_string
;
2270 status_string
= target_waitstatus_to_string (status
);
2271 options_string
= target_options_to_string (options
);
2272 fprintf_unfiltered (gdb_stdlog
,
2273 "target_wait (%d, status, options={%s})"
2275 ptid_get_pid (ptid
), options_string
,
2276 ptid_get_pid (retval
), status_string
);
2277 xfree (status_string
);
2278 xfree (options_string
);
2285 target_pid_to_str (ptid_t ptid
)
2287 return (*current_target
.to_pid_to_str
) (¤t_target
, ptid
);
2291 target_thread_name (struct thread_info
*info
)
2293 return current_target
.to_thread_name (¤t_target
, info
);
2297 target_resume (ptid_t ptid
, int step
, enum gdb_signal signal
)
2299 struct target_ops
*t
;
2301 target_dcache_invalidate ();
2303 current_target
.to_resume (¤t_target
, ptid
, step
, signal
);
2305 fprintf_unfiltered (gdb_stdlog
, "target_resume (%d, %s, %s)\n",
2306 ptid_get_pid (ptid
),
2307 step
? "step" : "continue",
2308 gdb_signal_to_name (signal
));
2310 registers_changed_ptid (ptid
);
2311 set_executing (ptid
, 1);
2312 set_running (ptid
, 1);
2313 clear_inline_frame_state (ptid
);
2317 target_pass_signals (int numsigs
, unsigned char *pass_signals
)
2323 fprintf_unfiltered (gdb_stdlog
, "target_pass_signals (%d, {",
2326 for (i
= 0; i
< numsigs
; i
++)
2327 if (pass_signals
[i
])
2328 fprintf_unfiltered (gdb_stdlog
, " %s",
2329 gdb_signal_to_name (i
));
2331 fprintf_unfiltered (gdb_stdlog
, " })\n");
2334 (*current_target
.to_pass_signals
) (¤t_target
, numsigs
, pass_signals
);
2338 target_program_signals (int numsigs
, unsigned char *program_signals
)
2344 fprintf_unfiltered (gdb_stdlog
, "target_program_signals (%d, {",
2347 for (i
= 0; i
< numsigs
; i
++)
2348 if (program_signals
[i
])
2349 fprintf_unfiltered (gdb_stdlog
, " %s",
2350 gdb_signal_to_name (i
));
2352 fprintf_unfiltered (gdb_stdlog
, " })\n");
2355 (*current_target
.to_program_signals
) (¤t_target
,
2356 numsigs
, program_signals
);
2360 default_follow_fork (struct target_ops
*self
, int follow_child
,
2363 /* Some target returned a fork event, but did not know how to follow it. */
2364 internal_error (__FILE__
, __LINE__
,
2365 _("could not find a target to follow fork"));
2368 /* Look through the list of possible targets for a target that can
2372 target_follow_fork (int follow_child
, int detach_fork
)
2374 int retval
= current_target
.to_follow_fork (¤t_target
,
2375 follow_child
, detach_fork
);
2378 fprintf_unfiltered (gdb_stdlog
,
2379 "target_follow_fork (%d, %d) = %d\n",
2380 follow_child
, detach_fork
, retval
);
2385 default_mourn_inferior (struct target_ops
*self
)
2387 internal_error (__FILE__
, __LINE__
,
2388 _("could not find a target to follow mourn inferior"));
2392 target_mourn_inferior (void)
2394 current_target
.to_mourn_inferior (¤t_target
);
2396 fprintf_unfiltered (gdb_stdlog
, "target_mourn_inferior ()\n");
2398 /* We no longer need to keep handles on any of the object files.
2399 Make sure to release them to avoid unnecessarily locking any
2400 of them while we're not actually debugging. */
2401 bfd_cache_close_all ();
2404 /* Look for a target which can describe architectural features, starting
2405 from TARGET. If we find one, return its description. */
2407 const struct target_desc
*
2408 target_read_description (struct target_ops
*target
)
2410 return target
->to_read_description (target
);
2413 /* This implements a basic search of memory, reading target memory and
2414 performing the search here (as opposed to performing the search in on the
2415 target side with, for example, gdbserver). */
2418 simple_search_memory (struct target_ops
*ops
,
2419 CORE_ADDR start_addr
, ULONGEST search_space_len
,
2420 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2421 CORE_ADDR
*found_addrp
)
2423 /* NOTE: also defined in find.c testcase. */
2424 #define SEARCH_CHUNK_SIZE 16000
2425 const unsigned chunk_size
= SEARCH_CHUNK_SIZE
;
2426 /* Buffer to hold memory contents for searching. */
2427 gdb_byte
*search_buf
;
2428 unsigned search_buf_size
;
2429 struct cleanup
*old_cleanups
;
2431 search_buf_size
= chunk_size
+ pattern_len
- 1;
2433 /* No point in trying to allocate a buffer larger than the search space. */
2434 if (search_space_len
< search_buf_size
)
2435 search_buf_size
= search_space_len
;
2437 search_buf
= malloc (search_buf_size
);
2438 if (search_buf
== NULL
)
2439 error (_("Unable to allocate memory to perform the search."));
2440 old_cleanups
= make_cleanup (free_current_contents
, &search_buf
);
2442 /* Prime the search buffer. */
2444 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2445 search_buf
, start_addr
, search_buf_size
) != search_buf_size
)
2447 warning (_("Unable to access %s bytes of target "
2448 "memory at %s, halting search."),
2449 pulongest (search_buf_size
), hex_string (start_addr
));
2450 do_cleanups (old_cleanups
);
2454 /* Perform the search.
2456 The loop is kept simple by allocating [N + pattern-length - 1] bytes.
2457 When we've scanned N bytes we copy the trailing bytes to the start and
2458 read in another N bytes. */
2460 while (search_space_len
>= pattern_len
)
2462 gdb_byte
*found_ptr
;
2463 unsigned nr_search_bytes
= min (search_space_len
, search_buf_size
);
2465 found_ptr
= memmem (search_buf
, nr_search_bytes
,
2466 pattern
, pattern_len
);
2468 if (found_ptr
!= NULL
)
2470 CORE_ADDR found_addr
= start_addr
+ (found_ptr
- search_buf
);
2472 *found_addrp
= found_addr
;
2473 do_cleanups (old_cleanups
);
2477 /* Not found in this chunk, skip to next chunk. */
2479 /* Don't let search_space_len wrap here, it's unsigned. */
2480 if (search_space_len
>= chunk_size
)
2481 search_space_len
-= chunk_size
;
2483 search_space_len
= 0;
2485 if (search_space_len
>= pattern_len
)
2487 unsigned keep_len
= search_buf_size
- chunk_size
;
2488 CORE_ADDR read_addr
= start_addr
+ chunk_size
+ keep_len
;
2491 /* Copy the trailing part of the previous iteration to the front
2492 of the buffer for the next iteration. */
2493 gdb_assert (keep_len
== pattern_len
- 1);
2494 memcpy (search_buf
, search_buf
+ chunk_size
, keep_len
);
2496 nr_to_read
= min (search_space_len
- keep_len
, chunk_size
);
2498 if (target_read (ops
, TARGET_OBJECT_MEMORY
, NULL
,
2499 search_buf
+ keep_len
, read_addr
,
2500 nr_to_read
) != nr_to_read
)
2502 warning (_("Unable to access %s bytes of target "
2503 "memory at %s, halting search."),
2504 plongest (nr_to_read
),
2505 hex_string (read_addr
));
2506 do_cleanups (old_cleanups
);
2510 start_addr
+= chunk_size
;
2516 do_cleanups (old_cleanups
);
2520 /* Default implementation of memory-searching. */
2523 default_search_memory (struct target_ops
*self
,
2524 CORE_ADDR start_addr
, ULONGEST search_space_len
,
2525 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2526 CORE_ADDR
*found_addrp
)
2528 /* Start over from the top of the target stack. */
2529 return simple_search_memory (current_target
.beneath
,
2530 start_addr
, search_space_len
,
2531 pattern
, pattern_len
, found_addrp
);
2534 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
2535 sequence of bytes in PATTERN with length PATTERN_LEN.
2537 The result is 1 if found, 0 if not found, and -1 if there was an error
2538 requiring halting of the search (e.g. memory read error).
2539 If the pattern is found the address is recorded in FOUND_ADDRP. */
2542 target_search_memory (CORE_ADDR start_addr
, ULONGEST search_space_len
,
2543 const gdb_byte
*pattern
, ULONGEST pattern_len
,
2544 CORE_ADDR
*found_addrp
)
2549 fprintf_unfiltered (gdb_stdlog
, "target_search_memory (%s, ...)\n",
2550 hex_string (start_addr
));
2552 found
= current_target
.to_search_memory (¤t_target
, start_addr
,
2554 pattern
, pattern_len
, found_addrp
);
2557 fprintf_unfiltered (gdb_stdlog
, " = %d\n", found
);
2562 /* Look through the currently pushed targets. If none of them will
2563 be able to restart the currently running process, issue an error
2567 target_require_runnable (void)
2569 struct target_ops
*t
;
2571 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
2573 /* If this target knows how to create a new program, then
2574 assume we will still be able to after killing the current
2575 one. Either killing and mourning will not pop T, or else
2576 find_default_run_target will find it again. */
2577 if (t
->to_create_inferior
!= NULL
)
2580 /* Do not worry about thread_stratum targets that can not
2581 create inferiors. Assume they will be pushed again if
2582 necessary, and continue to the process_stratum. */
2583 if (t
->to_stratum
== thread_stratum
2584 || t
->to_stratum
== arch_stratum
)
2587 error (_("The \"%s\" target does not support \"run\". "
2588 "Try \"help target\" or \"continue\"."),
2592 /* This function is only called if the target is running. In that
2593 case there should have been a process_stratum target and it
2594 should either know how to create inferiors, or not... */
2595 internal_error (__FILE__
, __LINE__
, _("No targets found"));
2598 /* Look through the list of possible targets for a target that can
2599 execute a run or attach command without any other data. This is
2600 used to locate the default process stratum.
2602 If DO_MESG is not NULL, the result is always valid (error() is
2603 called for errors); else, return NULL on error. */
2605 static struct target_ops
*
2606 find_default_run_target (char *do_mesg
)
2608 struct target_ops
**t
;
2609 struct target_ops
*runable
= NULL
;
2614 for (t
= target_structs
; t
< target_structs
+ target_struct_size
;
2617 if ((*t
)->to_can_run
!= delegate_can_run
&& target_can_run (*t
))
2627 error (_("Don't know how to %s. Try \"help target\"."), do_mesg
);
2636 find_default_attach (struct target_ops
*ops
, char *args
, int from_tty
)
2638 struct target_ops
*t
;
2640 t
= find_default_run_target ("attach");
2641 (t
->to_attach
) (t
, args
, from_tty
);
2646 find_default_create_inferior (struct target_ops
*ops
,
2647 char *exec_file
, char *allargs
, char **env
,
2650 struct target_ops
*t
;
2652 t
= find_default_run_target ("run");
2653 (t
->to_create_inferior
) (t
, exec_file
, allargs
, env
, from_tty
);
2658 find_default_can_async_p (struct target_ops
*ignore
)
2660 struct target_ops
*t
;
2662 /* This may be called before the target is pushed on the stack;
2663 look for the default process stratum. If there's none, gdb isn't
2664 configured with a native debugger, and target remote isn't
2666 t
= find_default_run_target (NULL
);
2667 if (t
&& t
->to_can_async_p
!= delegate_can_async_p
)
2668 return (t
->to_can_async_p
) (t
);
2673 find_default_is_async_p (struct target_ops
*ignore
)
2675 struct target_ops
*t
;
2677 /* This may be called before the target is pushed on the stack;
2678 look for the default process stratum. If there's none, gdb isn't
2679 configured with a native debugger, and target remote isn't
2681 t
= find_default_run_target (NULL
);
2682 if (t
&& t
->to_is_async_p
!= delegate_is_async_p
)
2683 return (t
->to_is_async_p
) (t
);
2688 find_default_supports_non_stop (struct target_ops
*self
)
2690 struct target_ops
*t
;
2692 t
= find_default_run_target (NULL
);
2693 if (t
&& t
->to_supports_non_stop
)
2694 return (t
->to_supports_non_stop
) (t
);
2699 target_supports_non_stop (void)
2701 struct target_ops
*t
;
2703 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
2704 if (t
->to_supports_non_stop
)
2705 return t
->to_supports_non_stop (t
);
2710 /* Implement the "info proc" command. */
2713 target_info_proc (char *args
, enum info_proc_what what
)
2715 struct target_ops
*t
;
2717 /* If we're already connected to something that can get us OS
2718 related data, use it. Otherwise, try using the native
2720 if (current_target
.to_stratum
>= process_stratum
)
2721 t
= current_target
.beneath
;
2723 t
= find_default_run_target (NULL
);
2725 for (; t
!= NULL
; t
= t
->beneath
)
2727 if (t
->to_info_proc
!= NULL
)
2729 t
->to_info_proc (t
, args
, what
);
2732 fprintf_unfiltered (gdb_stdlog
,
2733 "target_info_proc (\"%s\", %d)\n", args
, what
);
2743 find_default_supports_disable_randomization (struct target_ops
*self
)
2745 struct target_ops
*t
;
2747 t
= find_default_run_target (NULL
);
2748 if (t
&& t
->to_supports_disable_randomization
)
2749 return (t
->to_supports_disable_randomization
) (t
);
2754 target_supports_disable_randomization (void)
2756 struct target_ops
*t
;
2758 for (t
= ¤t_target
; t
!= NULL
; t
= t
->beneath
)
2759 if (t
->to_supports_disable_randomization
)
2760 return t
->to_supports_disable_randomization (t
);
2766 target_get_osdata (const char *type
)
2768 struct target_ops
*t
;
2770 /* If we're already connected to something that can get us OS
2771 related data, use it. Otherwise, try using the native
2773 if (current_target
.to_stratum
>= process_stratum
)
2774 t
= current_target
.beneath
;
2776 t
= find_default_run_target ("get OS data");
2781 return target_read_stralloc (t
, TARGET_OBJECT_OSDATA
, type
);
2784 /* Determine the current address space of thread PTID. */
2786 struct address_space
*
2787 target_thread_address_space (ptid_t ptid
)
2789 struct address_space
*aspace
;
2790 struct inferior
*inf
;
2791 struct target_ops
*t
;
2793 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
2795 if (t
->to_thread_address_space
!= NULL
)
2797 aspace
= t
->to_thread_address_space (t
, ptid
);
2798 gdb_assert (aspace
);
2801 fprintf_unfiltered (gdb_stdlog
,
2802 "target_thread_address_space (%s) = %d\n",
2803 target_pid_to_str (ptid
),
2804 address_space_num (aspace
));
2809 /* Fall-back to the "main" address space of the inferior. */
2810 inf
= find_inferior_pid (ptid_get_pid (ptid
));
2812 if (inf
== NULL
|| inf
->aspace
== NULL
)
2813 internal_error (__FILE__
, __LINE__
,
2814 _("Can't determine the current "
2815 "address space of thread %s\n"),
2816 target_pid_to_str (ptid
));
2822 /* Target file operations. */
2824 static struct target_ops
*
2825 default_fileio_target (void)
2827 /* If we're already connected to something that can perform
2828 file I/O, use it. Otherwise, try using the native target. */
2829 if (current_target
.to_stratum
>= process_stratum
)
2830 return current_target
.beneath
;
2832 return find_default_run_target ("file I/O");
2835 /* Open FILENAME on the target, using FLAGS and MODE. Return a
2836 target file descriptor, or -1 if an error occurs (and set
2839 target_fileio_open (const char *filename
, int flags
, int mode
,
2842 struct target_ops
*t
;
2844 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
2846 if (t
->to_fileio_open
!= NULL
)
2848 int fd
= t
->to_fileio_open (t
, filename
, flags
, mode
, target_errno
);
2851 fprintf_unfiltered (gdb_stdlog
,
2852 "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n",
2853 filename
, flags
, mode
,
2854 fd
, fd
!= -1 ? 0 : *target_errno
);
2859 *target_errno
= FILEIO_ENOSYS
;
2863 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
2864 Return the number of bytes written, or -1 if an error occurs
2865 (and set *TARGET_ERRNO). */
2867 target_fileio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
2868 ULONGEST offset
, int *target_errno
)
2870 struct target_ops
*t
;
2872 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
2874 if (t
->to_fileio_pwrite
!= NULL
)
2876 int ret
= t
->to_fileio_pwrite (t
, fd
, write_buf
, len
, offset
,
2880 fprintf_unfiltered (gdb_stdlog
,
2881 "target_fileio_pwrite (%d,...,%d,%s) "
2883 fd
, len
, pulongest (offset
),
2884 ret
, ret
!= -1 ? 0 : *target_errno
);
2889 *target_errno
= FILEIO_ENOSYS
;
2893 /* Read up to LEN bytes FD on the target into READ_BUF.
2894 Return the number of bytes read, or -1 if an error occurs
2895 (and set *TARGET_ERRNO). */
2897 target_fileio_pread (int fd
, gdb_byte
*read_buf
, int len
,
2898 ULONGEST offset
, int *target_errno
)
2900 struct target_ops
*t
;
2902 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
2904 if (t
->to_fileio_pread
!= NULL
)
2906 int ret
= t
->to_fileio_pread (t
, fd
, read_buf
, len
, offset
,
2910 fprintf_unfiltered (gdb_stdlog
,
2911 "target_fileio_pread (%d,...,%d,%s) "
2913 fd
, len
, pulongest (offset
),
2914 ret
, ret
!= -1 ? 0 : *target_errno
);
2919 *target_errno
= FILEIO_ENOSYS
;
2923 /* Close FD on the target. Return 0, or -1 if an error occurs
2924 (and set *TARGET_ERRNO). */
2926 target_fileio_close (int fd
, int *target_errno
)
2928 struct target_ops
*t
;
2930 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
2932 if (t
->to_fileio_close
!= NULL
)
2934 int ret
= t
->to_fileio_close (t
, fd
, target_errno
);
2937 fprintf_unfiltered (gdb_stdlog
,
2938 "target_fileio_close (%d) = %d (%d)\n",
2939 fd
, ret
, ret
!= -1 ? 0 : *target_errno
);
2944 *target_errno
= FILEIO_ENOSYS
;
2948 /* Unlink FILENAME on the target. Return 0, or -1 if an error
2949 occurs (and set *TARGET_ERRNO). */
2951 target_fileio_unlink (const char *filename
, int *target_errno
)
2953 struct target_ops
*t
;
2955 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
2957 if (t
->to_fileio_unlink
!= NULL
)
2959 int ret
= t
->to_fileio_unlink (t
, filename
, target_errno
);
2962 fprintf_unfiltered (gdb_stdlog
,
2963 "target_fileio_unlink (%s) = %d (%d)\n",
2964 filename
, ret
, ret
!= -1 ? 0 : *target_errno
);
2969 *target_errno
= FILEIO_ENOSYS
;
2973 /* Read value of symbolic link FILENAME on the target. Return a
2974 null-terminated string allocated via xmalloc, or NULL if an error
2975 occurs (and set *TARGET_ERRNO). */
2977 target_fileio_readlink (const char *filename
, int *target_errno
)
2979 struct target_ops
*t
;
2981 for (t
= default_fileio_target (); t
!= NULL
; t
= t
->beneath
)
2983 if (t
->to_fileio_readlink
!= NULL
)
2985 char *ret
= t
->to_fileio_readlink (t
, filename
, target_errno
);
2988 fprintf_unfiltered (gdb_stdlog
,
2989 "target_fileio_readlink (%s) = %s (%d)\n",
2990 filename
, ret
? ret
: "(nil)",
2991 ret
? 0 : *target_errno
);
2996 *target_errno
= FILEIO_ENOSYS
;
3001 target_fileio_close_cleanup (void *opaque
)
3003 int fd
= *(int *) opaque
;
3006 target_fileio_close (fd
, &target_errno
);
3009 /* Read target file FILENAME. Store the result in *BUF_P and
3010 return the size of the transferred data. PADDING additional bytes are
3011 available in *BUF_P. This is a helper function for
3012 target_fileio_read_alloc; see the declaration of that function for more
3016 target_fileio_read_alloc_1 (const char *filename
,
3017 gdb_byte
**buf_p
, int padding
)
3019 struct cleanup
*close_cleanup
;
3020 size_t buf_alloc
, buf_pos
;
3026 fd
= target_fileio_open (filename
, FILEIO_O_RDONLY
, 0700, &target_errno
);
3030 close_cleanup
= make_cleanup (target_fileio_close_cleanup
, &fd
);
3032 /* Start by reading up to 4K at a time. The target will throttle
3033 this number down if necessary. */
3035 buf
= xmalloc (buf_alloc
);
3039 n
= target_fileio_pread (fd
, &buf
[buf_pos
],
3040 buf_alloc
- buf_pos
- padding
, buf_pos
,
3044 /* An error occurred. */
3045 do_cleanups (close_cleanup
);
3051 /* Read all there was. */
3052 do_cleanups (close_cleanup
);
3062 /* If the buffer is filling up, expand it. */
3063 if (buf_alloc
< buf_pos
* 2)
3066 buf
= xrealloc (buf
, buf_alloc
);
3073 /* Read target file FILENAME. Store the result in *BUF_P and return
3074 the size of the transferred data. See the declaration in "target.h"
3075 function for more information about the return value. */
3078 target_fileio_read_alloc (const char *filename
, gdb_byte
**buf_p
)
3080 return target_fileio_read_alloc_1 (filename
, buf_p
, 0);
3083 /* Read target file FILENAME. The result is NUL-terminated and
3084 returned as a string, allocated using xmalloc. If an error occurs
3085 or the transfer is unsupported, NULL is returned. Empty objects
3086 are returned as allocated but empty strings. A warning is issued
3087 if the result contains any embedded NUL bytes. */
3090 target_fileio_read_stralloc (const char *filename
)
3094 LONGEST i
, transferred
;
3096 transferred
= target_fileio_read_alloc_1 (filename
, &buffer
, 1);
3097 bufstr
= (char *) buffer
;
3099 if (transferred
< 0)
3102 if (transferred
== 0)
3103 return xstrdup ("");
3105 bufstr
[transferred
] = 0;
3107 /* Check for embedded NUL bytes; but allow trailing NULs. */
3108 for (i
= strlen (bufstr
); i
< transferred
; i
++)
3111 warning (_("target file %s "
3112 "contained unexpected null characters"),
3122 default_region_ok_for_hw_watchpoint (struct target_ops
*self
,
3123 CORE_ADDR addr
, int len
)
3125 return (len
<= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT
);
3129 default_watchpoint_addr_within_range (struct target_ops
*target
,
3131 CORE_ADDR start
, int length
)
3133 return addr
>= start
&& addr
< start
+ length
;
3136 static struct gdbarch
*
3137 default_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
3139 return target_gdbarch ();
3143 return_zero (struct target_ops
*ignore
)
3149 return_zero_has_execution (struct target_ops
*ignore
, ptid_t ignore2
)
3155 * Find the next target down the stack from the specified target.
3159 find_target_beneath (struct target_ops
*t
)
3167 find_target_at (enum strata stratum
)
3169 struct target_ops
*t
;
3171 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3172 if (t
->to_stratum
== stratum
)
3179 /* The inferior process has died. Long live the inferior! */
3182 generic_mourn_inferior (void)
3186 ptid
= inferior_ptid
;
3187 inferior_ptid
= null_ptid
;
3189 /* Mark breakpoints uninserted in case something tries to delete a
3190 breakpoint while we delete the inferior's threads (which would
3191 fail, since the inferior is long gone). */
3192 mark_breakpoints_out ();
3194 if (!ptid_equal (ptid
, null_ptid
))
3196 int pid
= ptid_get_pid (ptid
);
3197 exit_inferior (pid
);
3200 /* Note this wipes step-resume breakpoints, so needs to be done
3201 after exit_inferior, which ends up referencing the step-resume
3202 breakpoints through clear_thread_inferior_resources. */
3203 breakpoint_init_inferior (inf_exited
);
3205 registers_changed ();
3207 reopen_exec_file ();
3208 reinit_frame_cache ();
3210 if (deprecated_detach_hook
)
3211 deprecated_detach_hook ();
3214 /* Convert a normal process ID to a string. Returns the string in a
3218 normal_pid_to_str (ptid_t ptid
)
3220 static char buf
[32];
3222 xsnprintf (buf
, sizeof buf
, "process %d", ptid_get_pid (ptid
));
3227 default_pid_to_str (struct target_ops
*ops
, ptid_t ptid
)
3229 return normal_pid_to_str (ptid
);
3232 /* Error-catcher for target_find_memory_regions. */
3234 dummy_find_memory_regions (struct target_ops
*self
,
3235 find_memory_region_ftype ignore1
, void *ignore2
)
3237 error (_("Command not implemented for this target."));
3241 /* Error-catcher for target_make_corefile_notes. */
3243 dummy_make_corefile_notes (struct target_ops
*self
,
3244 bfd
*ignore1
, int *ignore2
)
3246 error (_("Command not implemented for this target."));
3250 /* Set up the handful of non-empty slots needed by the dummy target
3254 init_dummy_target (void)
3256 dummy_target
.to_shortname
= "None";
3257 dummy_target
.to_longname
= "None";
3258 dummy_target
.to_doc
= "";
3259 dummy_target
.to_create_inferior
= find_default_create_inferior
;
3260 dummy_target
.to_supports_non_stop
= find_default_supports_non_stop
;
3261 dummy_target
.to_supports_disable_randomization
3262 = find_default_supports_disable_randomization
;
3263 dummy_target
.to_stratum
= dummy_stratum
;
3264 dummy_target
.to_has_all_memory
= return_zero
;
3265 dummy_target
.to_has_memory
= return_zero
;
3266 dummy_target
.to_has_stack
= return_zero
;
3267 dummy_target
.to_has_registers
= return_zero
;
3268 dummy_target
.to_has_execution
= return_zero_has_execution
;
3269 dummy_target
.to_magic
= OPS_MAGIC
;
3271 install_dummy_methods (&dummy_target
);
3275 debug_to_open (char *args
, int from_tty
)
3277 debug_target
.to_open (args
, from_tty
);
3279 fprintf_unfiltered (gdb_stdlog
, "target_open (%s, %d)\n", args
, from_tty
);
3283 target_close (struct target_ops
*targ
)
3285 gdb_assert (!target_is_pushed (targ
));
3287 if (targ
->to_xclose
!= NULL
)
3288 targ
->to_xclose (targ
);
3289 else if (targ
->to_close
!= NULL
)
3290 targ
->to_close (targ
);
3293 fprintf_unfiltered (gdb_stdlog
, "target_close ()\n");
3297 target_attach (char *args
, int from_tty
)
3299 current_target
.to_attach (¤t_target
, args
, from_tty
);
3301 fprintf_unfiltered (gdb_stdlog
, "target_attach (%s, %d)\n",
3306 target_thread_alive (ptid_t ptid
)
3310 retval
= current_target
.to_thread_alive (¤t_target
, ptid
);
3312 fprintf_unfiltered (gdb_stdlog
, "target_thread_alive (%d) = %d\n",
3313 ptid_get_pid (ptid
), retval
);
3319 target_find_new_threads (void)
3321 current_target
.to_find_new_threads (¤t_target
);
3323 fprintf_unfiltered (gdb_stdlog
, "target_find_new_threads ()\n");
3327 target_stop (ptid_t ptid
)
3331 warning (_("May not interrupt or stop the target, ignoring attempt"));
3335 (*current_target
.to_stop
) (¤t_target
, ptid
);
3339 debug_to_post_attach (struct target_ops
*self
, int pid
)
3341 debug_target
.to_post_attach (&debug_target
, pid
);
3343 fprintf_unfiltered (gdb_stdlog
, "target_post_attach (%d)\n", pid
);
3346 /* Concatenate ELEM to LIST, a comma separate list, and return the
3347 result. The LIST incoming argument is released. */
3350 str_comma_list_concat_elem (char *list
, const char *elem
)
3353 return xstrdup (elem
);
3355 return reconcat (list
, list
, ", ", elem
, (char *) NULL
);
3358 /* Helper for target_options_to_string. If OPT is present in
3359 TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET.
3360 Returns the new resulting string. OPT is removed from
3364 do_option (int *target_options
, char *ret
,
3365 int opt
, char *opt_str
)
3367 if ((*target_options
& opt
) != 0)
3369 ret
= str_comma_list_concat_elem (ret
, opt_str
);
3370 *target_options
&= ~opt
;
3377 target_options_to_string (int target_options
)
3381 #define DO_TARG_OPTION(OPT) \
3382 ret = do_option (&target_options, ret, OPT, #OPT)
3384 DO_TARG_OPTION (TARGET_WNOHANG
);
3386 if (target_options
!= 0)
3387 ret
= str_comma_list_concat_elem (ret
, "unknown???");
3395 debug_print_register (const char * func
,
3396 struct regcache
*regcache
, int regno
)
3398 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
3400 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
3401 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
)
3402 && gdbarch_register_name (gdbarch
, regno
) != NULL
3403 && gdbarch_register_name (gdbarch
, regno
)[0] != '\0')
3404 fprintf_unfiltered (gdb_stdlog
, "(%s)",
3405 gdbarch_register_name (gdbarch
, regno
));
3407 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
3408 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
))
3410 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
3411 int i
, size
= register_size (gdbarch
, regno
);
3412 gdb_byte buf
[MAX_REGISTER_SIZE
];
3414 regcache_raw_collect (regcache
, regno
, buf
);
3415 fprintf_unfiltered (gdb_stdlog
, " = ");
3416 for (i
= 0; i
< size
; i
++)
3418 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
3420 if (size
<= sizeof (LONGEST
))
3422 ULONGEST val
= extract_unsigned_integer (buf
, size
, byte_order
);
3424 fprintf_unfiltered (gdb_stdlog
, " %s %s",
3425 core_addr_to_string_nz (val
), plongest (val
));
3428 fprintf_unfiltered (gdb_stdlog
, "\n");
3432 target_fetch_registers (struct regcache
*regcache
, int regno
)
3434 current_target
.to_fetch_registers (¤t_target
, regcache
, regno
);
3436 debug_print_register ("target_fetch_registers", regcache
, regno
);
3440 target_store_registers (struct regcache
*regcache
, int regno
)
3442 struct target_ops
*t
;
3444 if (!may_write_registers
)
3445 error (_("Writing to registers is not allowed (regno %d)"), regno
);
3447 current_target
.to_store_registers (¤t_target
, regcache
, regno
);
3450 debug_print_register ("target_store_registers", regcache
, regno
);
3455 target_core_of_thread (ptid_t ptid
)
3457 int retval
= current_target
.to_core_of_thread (¤t_target
, ptid
);
3460 fprintf_unfiltered (gdb_stdlog
,
3461 "target_core_of_thread (%d) = %d\n",
3462 ptid_get_pid (ptid
), retval
);
3467 target_verify_memory (const gdb_byte
*data
, CORE_ADDR memaddr
, ULONGEST size
)
3469 int retval
= current_target
.to_verify_memory (¤t_target
,
3470 data
, memaddr
, size
);
3473 fprintf_unfiltered (gdb_stdlog
,
3474 "target_verify_memory (%s, %s) = %d\n",
3475 paddress (target_gdbarch (), memaddr
),
3481 /* The documentation for this function is in its prototype declaration in
3485 target_insert_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
3489 ret
= current_target
.to_insert_mask_watchpoint (¤t_target
,
3493 fprintf_unfiltered (gdb_stdlog
, "\
3494 target_insert_mask_watchpoint (%s, %s, %d) = %d\n",
3495 core_addr_to_string (addr
),
3496 core_addr_to_string (mask
), rw
, ret
);
3501 /* The documentation for this function is in its prototype declaration in
3505 target_remove_mask_watchpoint (CORE_ADDR addr
, CORE_ADDR mask
, int rw
)
3509 ret
= current_target
.to_remove_mask_watchpoint (¤t_target
,
3513 fprintf_unfiltered (gdb_stdlog
, "\
3514 target_remove_mask_watchpoint (%s, %s, %d) = %d\n",
3515 core_addr_to_string (addr
),
3516 core_addr_to_string (mask
), rw
, ret
);
3521 /* The documentation for this function is in its prototype declaration
3525 target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
)
3527 return current_target
.to_masked_watch_num_registers (¤t_target
,
3531 /* The documentation for this function is in its prototype declaration
3535 target_ranged_break_num_registers (void)
3537 return current_target
.to_ranged_break_num_registers (¤t_target
);
3542 struct btrace_target_info
*
3543 target_enable_btrace (ptid_t ptid
)
3545 return current_target
.to_enable_btrace (¤t_target
, ptid
);
3551 target_disable_btrace (struct btrace_target_info
*btinfo
)
3553 current_target
.to_disable_btrace (¤t_target
, btinfo
);
3559 target_teardown_btrace (struct btrace_target_info
*btinfo
)
3561 current_target
.to_teardown_btrace (¤t_target
, btinfo
);
3567 target_read_btrace (VEC (btrace_block_s
) **btrace
,
3568 struct btrace_target_info
*btinfo
,
3569 enum btrace_read_type type
)
3571 return current_target
.to_read_btrace (¤t_target
, btrace
, btinfo
, type
);
3577 target_stop_recording (void)
3579 current_target
.to_stop_recording (¤t_target
);
3585 target_info_record (void)
3587 struct target_ops
*t
;
3589 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3590 if (t
->to_info_record
!= NULL
)
3592 t
->to_info_record (t
);
3602 target_save_record (const char *filename
)
3604 current_target
.to_save_record (¤t_target
, filename
);
3610 target_supports_delete_record (void)
3612 struct target_ops
*t
;
3614 for (t
= current_target
.beneath
; t
!= NULL
; t
= t
->beneath
)
3615 if (t
->to_delete_record
!= NULL
)
3624 target_delete_record (void)
3626 current_target
.to_delete_record (¤t_target
);
3632 target_record_is_replaying (void)
3634 return current_target
.to_record_is_replaying (¤t_target
);
3640 target_goto_record_begin (void)
3642 current_target
.to_goto_record_begin (¤t_target
);
3648 target_goto_record_end (void)
3650 current_target
.to_goto_record_end (¤t_target
);
3656 target_goto_record (ULONGEST insn
)
3658 current_target
.to_goto_record (¤t_target
, insn
);
3664 target_insn_history (int size
, int flags
)
3666 current_target
.to_insn_history (¤t_target
, size
, flags
);
3672 target_insn_history_from (ULONGEST from
, int size
, int flags
)
3674 current_target
.to_insn_history_from (¤t_target
, from
, size
, flags
);
3680 target_insn_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
3682 current_target
.to_insn_history_range (¤t_target
, begin
, end
, flags
);
3688 target_call_history (int size
, int flags
)
3690 current_target
.to_call_history (¤t_target
, size
, flags
);
3696 target_call_history_from (ULONGEST begin
, int size
, int flags
)
3698 current_target
.to_call_history_from (¤t_target
, begin
, size
, flags
);
3704 target_call_history_range (ULONGEST begin
, ULONGEST end
, int flags
)
3706 current_target
.to_call_history_range (¤t_target
, begin
, end
, flags
);
3710 debug_to_prepare_to_store (struct target_ops
*self
, struct regcache
*regcache
)
3712 debug_target
.to_prepare_to_store (&debug_target
, regcache
);
3714 fprintf_unfiltered (gdb_stdlog
, "target_prepare_to_store ()\n");
3719 const struct frame_unwind
*
3720 target_get_unwinder (void)
3722 return current_target
.to_get_unwinder (¤t_target
);
3727 const struct frame_unwind
*
3728 target_get_tailcall_unwinder (void)
3730 return current_target
.to_get_tailcall_unwinder (¤t_target
);
3733 /* Default implementation of to_decr_pc_after_break. */
3736 default_target_decr_pc_after_break (struct target_ops
*ops
,
3737 struct gdbarch
*gdbarch
)
3739 return gdbarch_decr_pc_after_break (gdbarch
);
3745 target_decr_pc_after_break (struct gdbarch
*gdbarch
)
3747 return current_target
.to_decr_pc_after_break (¤t_target
, gdbarch
);
3751 debug_to_files_info (struct target_ops
*target
)
3753 debug_target
.to_files_info (target
);
3755 fprintf_unfiltered (gdb_stdlog
, "target_files_info (xxx)\n");
3759 debug_to_insert_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
3760 struct bp_target_info
*bp_tgt
)
3764 retval
= debug_target
.to_insert_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
3766 fprintf_unfiltered (gdb_stdlog
,
3767 "target_insert_breakpoint (%s, xxx) = %ld\n",
3768 core_addr_to_string (bp_tgt
->placed_address
),
3769 (unsigned long) retval
);
3774 debug_to_remove_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
3775 struct bp_target_info
*bp_tgt
)
3779 retval
= debug_target
.to_remove_breakpoint (&debug_target
, gdbarch
, bp_tgt
);
3781 fprintf_unfiltered (gdb_stdlog
,
3782 "target_remove_breakpoint (%s, xxx) = %ld\n",
3783 core_addr_to_string (bp_tgt
->placed_address
),
3784 (unsigned long) retval
);
3789 debug_to_can_use_hw_breakpoint (struct target_ops
*self
,
3790 int type
, int cnt
, int from_tty
)
3794 retval
= debug_target
.to_can_use_hw_breakpoint (&debug_target
,
3795 type
, cnt
, from_tty
);
3797 fprintf_unfiltered (gdb_stdlog
,
3798 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
3799 (unsigned long) type
,
3800 (unsigned long) cnt
,
3801 (unsigned long) from_tty
,
3802 (unsigned long) retval
);
3807 debug_to_region_ok_for_hw_watchpoint (struct target_ops
*self
,
3808 CORE_ADDR addr
, int len
)
3812 retval
= debug_target
.to_region_ok_for_hw_watchpoint (&debug_target
,
3815 fprintf_unfiltered (gdb_stdlog
,
3816 "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n",
3817 core_addr_to_string (addr
), (unsigned long) len
,
3818 core_addr_to_string (retval
));
3823 debug_to_can_accel_watchpoint_condition (struct target_ops
*self
,
3824 CORE_ADDR addr
, int len
, int rw
,
3825 struct expression
*cond
)
3829 retval
= debug_target
.to_can_accel_watchpoint_condition (&debug_target
,
3833 fprintf_unfiltered (gdb_stdlog
,
3834 "target_can_accel_watchpoint_condition "
3835 "(%s, %d, %d, %s) = %ld\n",
3836 core_addr_to_string (addr
), len
, rw
,
3837 host_address_to_string (cond
), (unsigned long) retval
);
3842 debug_to_stopped_by_watchpoint (struct target_ops
*ops
)
3846 retval
= debug_target
.to_stopped_by_watchpoint (&debug_target
);
3848 fprintf_unfiltered (gdb_stdlog
,
3849 "target_stopped_by_watchpoint () = %ld\n",
3850 (unsigned long) retval
);
3855 debug_to_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr
)
3859 retval
= debug_target
.to_stopped_data_address (target
, addr
);
3861 fprintf_unfiltered (gdb_stdlog
,
3862 "target_stopped_data_address ([%s]) = %ld\n",
3863 core_addr_to_string (*addr
),
3864 (unsigned long)retval
);
3869 debug_to_watchpoint_addr_within_range (struct target_ops
*target
,
3871 CORE_ADDR start
, int length
)
3875 retval
= debug_target
.to_watchpoint_addr_within_range (target
, addr
,
3878 fprintf_filtered (gdb_stdlog
,
3879 "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n",
3880 core_addr_to_string (addr
), core_addr_to_string (start
),
3886 debug_to_insert_hw_breakpoint (struct target_ops
*self
,
3887 struct gdbarch
*gdbarch
,
3888 struct bp_target_info
*bp_tgt
)
3892 retval
= debug_target
.to_insert_hw_breakpoint (&debug_target
,
3895 fprintf_unfiltered (gdb_stdlog
,
3896 "target_insert_hw_breakpoint (%s, xxx) = %ld\n",
3897 core_addr_to_string (bp_tgt
->placed_address
),
3898 (unsigned long) retval
);
3903 debug_to_remove_hw_breakpoint (struct target_ops
*self
,
3904 struct gdbarch
*gdbarch
,
3905 struct bp_target_info
*bp_tgt
)
3909 retval
= debug_target
.to_remove_hw_breakpoint (&debug_target
,
3912 fprintf_unfiltered (gdb_stdlog
,
3913 "target_remove_hw_breakpoint (%s, xxx) = %ld\n",
3914 core_addr_to_string (bp_tgt
->placed_address
),
3915 (unsigned long) retval
);
3920 debug_to_insert_watchpoint (struct target_ops
*self
,
3921 CORE_ADDR addr
, int len
, int type
,
3922 struct expression
*cond
)
3926 retval
= debug_target
.to_insert_watchpoint (&debug_target
,
3927 addr
, len
, type
, cond
);
3929 fprintf_unfiltered (gdb_stdlog
,
3930 "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n",
3931 core_addr_to_string (addr
), len
, type
,
3932 host_address_to_string (cond
), (unsigned long) retval
);
3937 debug_to_remove_watchpoint (struct target_ops
*self
,
3938 CORE_ADDR addr
, int len
, int type
,
3939 struct expression
*cond
)
3943 retval
= debug_target
.to_remove_watchpoint (&debug_target
,
3944 addr
, len
, type
, cond
);
3946 fprintf_unfiltered (gdb_stdlog
,
3947 "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n",
3948 core_addr_to_string (addr
), len
, type
,
3949 host_address_to_string (cond
), (unsigned long) retval
);
3954 debug_to_terminal_init (struct target_ops
*self
)
3956 debug_target
.to_terminal_init (&debug_target
);
3958 fprintf_unfiltered (gdb_stdlog
, "target_terminal_init ()\n");
3962 debug_to_terminal_inferior (struct target_ops
*self
)
3964 debug_target
.to_terminal_inferior (&debug_target
);
3966 fprintf_unfiltered (gdb_stdlog
, "target_terminal_inferior ()\n");
3970 debug_to_terminal_ours_for_output (struct target_ops
*self
)
3972 debug_target
.to_terminal_ours_for_output (&debug_target
);
3974 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours_for_output ()\n");
3978 debug_to_terminal_ours (struct target_ops
*self
)
3980 debug_target
.to_terminal_ours (&debug_target
);
3982 fprintf_unfiltered (gdb_stdlog
, "target_terminal_ours ()\n");
3986 debug_to_terminal_save_ours (struct target_ops
*self
)
3988 debug_target
.to_terminal_save_ours (&debug_target
);
3990 fprintf_unfiltered (gdb_stdlog
, "target_terminal_save_ours ()\n");
3994 debug_to_terminal_info (struct target_ops
*self
,
3995 const char *arg
, int from_tty
)
3997 debug_target
.to_terminal_info (&debug_target
, arg
, from_tty
);
3999 fprintf_unfiltered (gdb_stdlog
, "target_terminal_info (%s, %d)\n", arg
,
4004 debug_to_load (struct target_ops
*self
, char *args
, int from_tty
)
4006 debug_target
.to_load (&debug_target
, args
, from_tty
);
4008 fprintf_unfiltered (gdb_stdlog
, "target_load (%s, %d)\n", args
, from_tty
);
4012 debug_to_post_startup_inferior (struct target_ops
*self
, ptid_t ptid
)
4014 debug_target
.to_post_startup_inferior (&debug_target
, ptid
);
4016 fprintf_unfiltered (gdb_stdlog
, "target_post_startup_inferior (%d)\n",
4017 ptid_get_pid (ptid
));
4021 debug_to_insert_fork_catchpoint (struct target_ops
*self
, int pid
)
4025 retval
= debug_target
.to_insert_fork_catchpoint (&debug_target
, pid
);
4027 fprintf_unfiltered (gdb_stdlog
, "target_insert_fork_catchpoint (%d) = %d\n",
4034 debug_to_remove_fork_catchpoint (struct target_ops
*self
, int pid
)
4038 retval
= debug_target
.to_remove_fork_catchpoint (&debug_target
, pid
);
4040 fprintf_unfiltered (gdb_stdlog
, "target_remove_fork_catchpoint (%d) = %d\n",
4047 debug_to_insert_vfork_catchpoint (struct target_ops
*self
, int pid
)
4051 retval
= debug_target
.to_insert_vfork_catchpoint (&debug_target
, pid
);
4053 fprintf_unfiltered (gdb_stdlog
, "target_insert_vfork_catchpoint (%d) = %d\n",
4060 debug_to_remove_vfork_catchpoint (struct target_ops
*self
, int pid
)
4064 retval
= debug_target
.to_remove_vfork_catchpoint (&debug_target
, pid
);
4066 fprintf_unfiltered (gdb_stdlog
, "target_remove_vfork_catchpoint (%d) = %d\n",
4073 debug_to_insert_exec_catchpoint (struct target_ops
*self
, int pid
)
4077 retval
= debug_target
.to_insert_exec_catchpoint (&debug_target
, pid
);
4079 fprintf_unfiltered (gdb_stdlog
, "target_insert_exec_catchpoint (%d) = %d\n",
4086 debug_to_remove_exec_catchpoint (struct target_ops
*self
, int pid
)
4090 retval
= debug_target
.to_remove_exec_catchpoint (&debug_target
, pid
);
4092 fprintf_unfiltered (gdb_stdlog
, "target_remove_exec_catchpoint (%d) = %d\n",
4099 debug_to_has_exited (struct target_ops
*self
,
4100 int pid
, int wait_status
, int *exit_status
)
4104 has_exited
= debug_target
.to_has_exited (&debug_target
,
4105 pid
, wait_status
, exit_status
);
4107 fprintf_unfiltered (gdb_stdlog
, "target_has_exited (%d, %d, %d) = %d\n",
4108 pid
, wait_status
, *exit_status
, has_exited
);
4114 debug_to_can_run (struct target_ops
*self
)
4118 retval
= debug_target
.to_can_run (&debug_target
);
4120 fprintf_unfiltered (gdb_stdlog
, "target_can_run () = %d\n", retval
);
4125 static struct gdbarch
*
4126 debug_to_thread_architecture (struct target_ops
*ops
, ptid_t ptid
)
4128 struct gdbarch
*retval
;
4130 retval
= debug_target
.to_thread_architecture (ops
, ptid
);
4132 fprintf_unfiltered (gdb_stdlog
,
4133 "target_thread_architecture (%s) = %s [%s]\n",
4134 target_pid_to_str (ptid
),
4135 host_address_to_string (retval
),
4136 gdbarch_bfd_arch_info (retval
)->printable_name
);
4141 debug_to_stop (struct target_ops
*self
, ptid_t ptid
)
4143 debug_target
.to_stop (&debug_target
, ptid
);
4145 fprintf_unfiltered (gdb_stdlog
, "target_stop (%s)\n",
4146 target_pid_to_str (ptid
));
4150 debug_to_rcmd (struct target_ops
*self
, char *command
,
4151 struct ui_file
*outbuf
)
4153 debug_target
.to_rcmd (&debug_target
, command
, outbuf
);
4154 fprintf_unfiltered (gdb_stdlog
, "target_rcmd (%s, ...)\n", command
);
4158 debug_to_pid_to_exec_file (struct target_ops
*self
, int pid
)
4162 exec_file
= debug_target
.to_pid_to_exec_file (&debug_target
, pid
);
4164 fprintf_unfiltered (gdb_stdlog
, "target_pid_to_exec_file (%d) = %s\n",
4171 setup_target_debug (void)
4173 memcpy (&debug_target
, ¤t_target
, sizeof debug_target
);
4175 current_target
.to_open
= debug_to_open
;
4176 current_target
.to_post_attach
= debug_to_post_attach
;
4177 current_target
.to_prepare_to_store
= debug_to_prepare_to_store
;
4178 current_target
.to_files_info
= debug_to_files_info
;
4179 current_target
.to_insert_breakpoint
= debug_to_insert_breakpoint
;
4180 current_target
.to_remove_breakpoint
= debug_to_remove_breakpoint
;
4181 current_target
.to_can_use_hw_breakpoint
= debug_to_can_use_hw_breakpoint
;
4182 current_target
.to_insert_hw_breakpoint
= debug_to_insert_hw_breakpoint
;
4183 current_target
.to_remove_hw_breakpoint
= debug_to_remove_hw_breakpoint
;
4184 current_target
.to_insert_watchpoint
= debug_to_insert_watchpoint
;
4185 current_target
.to_remove_watchpoint
= debug_to_remove_watchpoint
;
4186 current_target
.to_stopped_by_watchpoint
= debug_to_stopped_by_watchpoint
;
4187 current_target
.to_stopped_data_address
= debug_to_stopped_data_address
;
4188 current_target
.to_watchpoint_addr_within_range
4189 = debug_to_watchpoint_addr_within_range
;
4190 current_target
.to_region_ok_for_hw_watchpoint
4191 = debug_to_region_ok_for_hw_watchpoint
;
4192 current_target
.to_can_accel_watchpoint_condition
4193 = debug_to_can_accel_watchpoint_condition
;
4194 current_target
.to_terminal_init
= debug_to_terminal_init
;
4195 current_target
.to_terminal_inferior
= debug_to_terminal_inferior
;
4196 current_target
.to_terminal_ours_for_output
4197 = debug_to_terminal_ours_for_output
;
4198 current_target
.to_terminal_ours
= debug_to_terminal_ours
;
4199 current_target
.to_terminal_save_ours
= debug_to_terminal_save_ours
;
4200 current_target
.to_terminal_info
= debug_to_terminal_info
;
4201 current_target
.to_load
= debug_to_load
;
4202 current_target
.to_post_startup_inferior
= debug_to_post_startup_inferior
;
4203 current_target
.to_insert_fork_catchpoint
= debug_to_insert_fork_catchpoint
;
4204 current_target
.to_remove_fork_catchpoint
= debug_to_remove_fork_catchpoint
;
4205 current_target
.to_insert_vfork_catchpoint
= debug_to_insert_vfork_catchpoint
;
4206 current_target
.to_remove_vfork_catchpoint
= debug_to_remove_vfork_catchpoint
;
4207 current_target
.to_insert_exec_catchpoint
= debug_to_insert_exec_catchpoint
;
4208 current_target
.to_remove_exec_catchpoint
= debug_to_remove_exec_catchpoint
;
4209 current_target
.to_has_exited
= debug_to_has_exited
;
4210 current_target
.to_can_run
= debug_to_can_run
;
4211 current_target
.to_stop
= debug_to_stop
;
4212 current_target
.to_rcmd
= debug_to_rcmd
;
4213 current_target
.to_pid_to_exec_file
= debug_to_pid_to_exec_file
;
4214 current_target
.to_thread_architecture
= debug_to_thread_architecture
;
4218 static char targ_desc
[] =
4219 "Names of targets and files being debugged.\nShows the entire \
4220 stack of targets currently in use (including the exec-file,\n\
4221 core-file, and process, if any), as well as the symbol file name.";
4224 default_rcmd (struct target_ops
*self
, char *command
, struct ui_file
*output
)
4226 error (_("\"monitor\" command not supported by this target."));
4230 do_monitor_command (char *cmd
,
4233 target_rcmd (cmd
, gdb_stdtarg
);
4236 /* Print the name of each layers of our target stack. */
4239 maintenance_print_target_stack (char *cmd
, int from_tty
)
4241 struct target_ops
*t
;
4243 printf_filtered (_("The current target stack is:\n"));
4245 for (t
= target_stack
; t
!= NULL
; t
= t
->beneath
)
4247 printf_filtered (" - %s (%s)\n", t
->to_shortname
, t
->to_longname
);
4251 /* Controls if async mode is permitted. */
4252 int target_async_permitted
= 0;
4254 /* The set command writes to this variable. If the inferior is
4255 executing, target_async_permitted is *not* updated. */
4256 static int target_async_permitted_1
= 0;
4259 set_target_async_command (char *args
, int from_tty
,
4260 struct cmd_list_element
*c
)
4262 if (have_live_inferiors ())
4264 target_async_permitted_1
= target_async_permitted
;
4265 error (_("Cannot change this setting while the inferior is running."));
4268 target_async_permitted
= target_async_permitted_1
;
4272 show_target_async_command (struct ui_file
*file
, int from_tty
,
4273 struct cmd_list_element
*c
,
4276 fprintf_filtered (file
,
4277 _("Controlling the inferior in "
4278 "asynchronous mode is %s.\n"), value
);
4281 /* Temporary copies of permission settings. */
4283 static int may_write_registers_1
= 1;
4284 static int may_write_memory_1
= 1;
4285 static int may_insert_breakpoints_1
= 1;
4286 static int may_insert_tracepoints_1
= 1;
4287 static int may_insert_fast_tracepoints_1
= 1;
4288 static int may_stop_1
= 1;
4290 /* Make the user-set values match the real values again. */
4293 update_target_permissions (void)
4295 may_write_registers_1
= may_write_registers
;
4296 may_write_memory_1
= may_write_memory
;
4297 may_insert_breakpoints_1
= may_insert_breakpoints
;
4298 may_insert_tracepoints_1
= may_insert_tracepoints
;
4299 may_insert_fast_tracepoints_1
= may_insert_fast_tracepoints
;
4300 may_stop_1
= may_stop
;
4303 /* The one function handles (most of) the permission flags in the same
4307 set_target_permissions (char *args
, int from_tty
,
4308 struct cmd_list_element
*c
)
4310 if (target_has_execution
)
4312 update_target_permissions ();
4313 error (_("Cannot change this setting while the inferior is running."));
4316 /* Make the real values match the user-changed values. */
4317 may_write_registers
= may_write_registers_1
;
4318 may_insert_breakpoints
= may_insert_breakpoints_1
;
4319 may_insert_tracepoints
= may_insert_tracepoints_1
;
4320 may_insert_fast_tracepoints
= may_insert_fast_tracepoints_1
;
4321 may_stop
= may_stop_1
;
4322 update_observer_mode ();
4325 /* Set memory write permission independently of observer mode. */
4328 set_write_memory_permission (char *args
, int from_tty
,
4329 struct cmd_list_element
*c
)
4331 /* Make the real values match the user-changed values. */
4332 may_write_memory
= may_write_memory_1
;
4333 update_observer_mode ();
4338 initialize_targets (void)
4340 init_dummy_target ();
4341 push_target (&dummy_target
);
4343 add_info ("target", target_info
, targ_desc
);
4344 add_info ("files", target_info
, targ_desc
);
4346 add_setshow_zuinteger_cmd ("target", class_maintenance
, &targetdebug
, _("\
4347 Set target debugging."), _("\
4348 Show target debugging."), _("\
4349 When non-zero, target debugging is enabled. Higher numbers are more\n\
4350 verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
4354 &setdebuglist
, &showdebuglist
);
4356 add_setshow_boolean_cmd ("trust-readonly-sections", class_support
,
4357 &trust_readonly
, _("\
4358 Set mode for reading from readonly sections."), _("\
4359 Show mode for reading from readonly sections."), _("\
4360 When this mode is on, memory reads from readonly sections (such as .text)\n\
4361 will be read from the object file instead of from the target. This will\n\
4362 result in significant performance improvement for remote targets."),
4364 show_trust_readonly
,
4365 &setlist
, &showlist
);
4367 add_com ("monitor", class_obscure
, do_monitor_command
,
4368 _("Send a command to the remote monitor (remote targets only)."));
4370 add_cmd ("target-stack", class_maintenance
, maintenance_print_target_stack
,
4371 _("Print the name of each layer of the internal target stack."),
4372 &maintenanceprintlist
);
4374 add_setshow_boolean_cmd ("target-async", no_class
,
4375 &target_async_permitted_1
, _("\
4376 Set whether gdb controls the inferior in asynchronous mode."), _("\
4377 Show whether gdb controls the inferior in asynchronous mode."), _("\
4378 Tells gdb whether to control the inferior in asynchronous mode."),
4379 set_target_async_command
,
4380 show_target_async_command
,
4384 add_setshow_boolean_cmd ("may-write-registers", class_support
,
4385 &may_write_registers_1
, _("\
4386 Set permission to write into registers."), _("\
4387 Show permission to write into registers."), _("\
4388 When this permission is on, GDB may write into the target's registers.\n\
4389 Otherwise, any sort of write attempt will result in an error."),
4390 set_target_permissions
, NULL
,
4391 &setlist
, &showlist
);
4393 add_setshow_boolean_cmd ("may-write-memory", class_support
,
4394 &may_write_memory_1
, _("\
4395 Set permission to write into target memory."), _("\
4396 Show permission to write into target memory."), _("\
4397 When this permission is on, GDB may write into the target's memory.\n\
4398 Otherwise, any sort of write attempt will result in an error."),
4399 set_write_memory_permission
, NULL
,
4400 &setlist
, &showlist
);
4402 add_setshow_boolean_cmd ("may-insert-breakpoints", class_support
,
4403 &may_insert_breakpoints_1
, _("\
4404 Set permission to insert breakpoints in the target."), _("\
4405 Show permission to insert breakpoints in the target."), _("\
4406 When this permission is on, GDB may insert breakpoints in the program.\n\
4407 Otherwise, any sort of insertion attempt will result in an error."),
4408 set_target_permissions
, NULL
,
4409 &setlist
, &showlist
);
4411 add_setshow_boolean_cmd ("may-insert-tracepoints", class_support
,
4412 &may_insert_tracepoints_1
, _("\
4413 Set permission to insert tracepoints in the target."), _("\
4414 Show permission to insert tracepoints in the target."), _("\
4415 When this permission is on, GDB may insert tracepoints in the program.\n\
4416 Otherwise, any sort of insertion attempt will result in an error."),
4417 set_target_permissions
, NULL
,
4418 &setlist
, &showlist
);
4420 add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support
,
4421 &may_insert_fast_tracepoints_1
, _("\
4422 Set permission to insert fast tracepoints in the target."), _("\
4423 Show permission to insert fast tracepoints in the target."), _("\
4424 When this permission is on, GDB may insert fast tracepoints.\n\
4425 Otherwise, any sort of insertion attempt will result in an error."),
4426 set_target_permissions
, NULL
,
4427 &setlist
, &showlist
);
4429 add_setshow_boolean_cmd ("may-interrupt", class_support
,
4431 Set permission to interrupt or signal the target."), _("\
4432 Show permission to interrupt or signal the target."), _("\
4433 When this permission is on, GDB may interrupt/stop the target's execution.\n\
4434 Otherwise, any attempt to interrupt or stop will be ignored."),
4435 set_target_permissions
, NULL
,
4436 &setlist
, &showlist
);