1 /* Interface between GDB and target environments, including files and processes
3 Copyright (C) 1990-2017 Free Software Foundation, Inc.
5 Contributed by Cygnus Support. Written by John Gilmore.
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/>. */
22 #if !defined (TARGET_H)
30 struct bp_target_info
;
32 struct target_section_table
;
33 struct trace_state_variable
;
37 struct static_tracepoint_marker
;
38 struct traceframe_info
;
43 #include "infrun.h" /* For enum exec_direction_kind. */
44 #include "breakpoint.h" /* For enum bptype. */
45 #include "common/scoped_restore.h"
47 /* This include file defines the interface between the main part
48 of the debugger, and the part which is target-specific, or
49 specific to the communications interface between us and the
52 A TARGET is an interface between the debugger and a particular
53 kind of file or process. Targets can be STACKED in STRATA,
54 so that more than one target can potentially respond to a request.
55 In particular, memory accesses will walk down the stack of targets
56 until they find a target that is interested in handling that particular
57 address. STRATA are artificial boundaries on the stack, within
58 which particular kinds of targets live. Strata exist so that
59 people don't get confused by pushing e.g. a process target and then
60 a file target, and wondering why they can't see the current values
61 of variables any more (the file target is handling them and they
62 never get to the process target). So when you push a file target,
63 it goes into the file stratum, which is always below the process
66 #include "target/target.h"
67 #include "target/resume.h"
68 #include "target/wait.h"
69 #include "target/waitstatus.h"
74 #include "gdb_signals.h"
79 #include "tracepoint.h"
81 #include "break-common.h" /* For enum target_hw_bp_type. */
85 dummy_stratum
, /* The lowest of the low */
86 file_stratum
, /* Executable files, etc */
87 process_stratum
, /* Executing processes or core dump files */
88 thread_stratum
, /* Executing threads */
89 record_stratum
, /* Support record debugging */
90 arch_stratum
/* Architecture overrides */
93 enum thread_control_capabilities
95 tc_none
= 0, /* Default: can't control thread execution. */
96 tc_schedlock
= 1, /* Can lock the thread scheduler. */
99 /* The structure below stores information about a system call.
100 It is basically used in the "catch syscall" command, and in
101 every function that gives information about a system call.
103 It's also good to mention that its fields represent everything
104 that we currently know about a syscall in GDB. */
107 /* The syscall number. */
110 /* The syscall name. */
114 /* Return a pretty printed form of TARGET_OPTIONS.
115 Space for the result is malloc'd, caller must free. */
116 extern char *target_options_to_string (int target_options
);
118 /* Possible types of events that the inferior handler will have to
120 enum inferior_event_type
122 /* Process a normal inferior event which will result in target_wait
125 /* We are called to do stuff after the inferior stops. */
129 /* Target objects which can be transfered using target_read,
130 target_write, et cetera. */
134 /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */
136 /* SPU target specific transfer. See "spu-tdep.c". */
138 /* Transfer up-to LEN bytes of memory starting at OFFSET. */
139 TARGET_OBJECT_MEMORY
,
140 /* Memory, avoiding GDB's data cache and trusting the executable.
141 Target implementations of to_xfer_partial never need to handle
142 this object, and most callers should not use it. */
143 TARGET_OBJECT_RAW_MEMORY
,
144 /* Memory known to be part of the target's stack. This is cached even
145 if it is not in a region marked as such, since it is known to be
147 TARGET_OBJECT_STACK_MEMORY
,
148 /* Memory known to be part of the target code. This is cached even
149 if it is not in a region marked as such. */
150 TARGET_OBJECT_CODE_MEMORY
,
151 /* Kernel Unwind Table. See "ia64-tdep.c". */
152 TARGET_OBJECT_UNWIND_TABLE
,
153 /* Transfer auxilliary vector. */
155 /* StackGhost cookie. See "sparc-tdep.c". */
156 TARGET_OBJECT_WCOOKIE
,
157 /* Target memory map in XML format. */
158 TARGET_OBJECT_MEMORY_MAP
,
159 /* Flash memory. This object can be used to write contents to
160 a previously erased flash memory. Using it without erasing
161 flash can have unexpected results. Addresses are physical
162 address on target, and not relative to flash start. */
164 /* Available target-specific features, e.g. registers and coprocessors.
165 See "target-descriptions.c". ANNEX should never be empty. */
166 TARGET_OBJECT_AVAILABLE_FEATURES
,
167 /* Currently loaded libraries, in XML format. */
168 TARGET_OBJECT_LIBRARIES
,
169 /* Currently loaded libraries specific for SVR4 systems, in XML format. */
170 TARGET_OBJECT_LIBRARIES_SVR4
,
171 /* Currently loaded libraries specific to AIX systems, in XML format. */
172 TARGET_OBJECT_LIBRARIES_AIX
,
173 /* Get OS specific data. The ANNEX specifies the type (running
174 processes, etc.). The data being transfered is expected to follow
175 the DTD specified in features/osdata.dtd. */
176 TARGET_OBJECT_OSDATA
,
177 /* Extra signal info. Usually the contents of `siginfo_t' on unix
179 TARGET_OBJECT_SIGNAL_INFO
,
180 /* The list of threads that are being debugged. */
181 TARGET_OBJECT_THREADS
,
182 /* Collected static trace data. */
183 TARGET_OBJECT_STATIC_TRACE_DATA
,
184 /* The HP-UX registers (those that can be obtained or modified by using
185 the TT_LWP_RUREGS/TT_LWP_WUREGS ttrace requests). */
186 TARGET_OBJECT_HPUX_UREGS
,
187 /* The HP-UX shared library linkage pointer. ANNEX should be a string
188 image of the code address whose linkage pointer we are looking for.
190 The size of the data transfered is always 8 bytes (the size of an
192 TARGET_OBJECT_HPUX_SOLIB_GOT
,
193 /* Traceframe info, in XML format. */
194 TARGET_OBJECT_TRACEFRAME_INFO
,
195 /* Load maps for FDPIC systems. */
197 /* Darwin dynamic linker info data. */
198 TARGET_OBJECT_DARWIN_DYLD_INFO
,
199 /* OpenVMS Unwind Information Block. */
200 TARGET_OBJECT_OPENVMS_UIB
,
201 /* Branch trace data, in XML format. */
202 TARGET_OBJECT_BTRACE
,
203 /* Branch trace configuration, in XML format. */
204 TARGET_OBJECT_BTRACE_CONF
,
205 /* The pathname of the executable file that was run to create
206 a specified process. ANNEX should be a string representation
207 of the process ID of the process in question, in hexadecimal
209 TARGET_OBJECT_EXEC_FILE
,
210 /* Possible future objects: TARGET_OBJECT_FILE, ... */
213 /* Possible values returned by target_xfer_partial, etc. */
215 enum target_xfer_status
217 /* Some bytes are transferred. */
220 /* No further transfer is possible. */
223 /* The piece of the object requested is unavailable. */
224 TARGET_XFER_UNAVAILABLE
= 2,
226 /* Generic I/O error. Note that it's important that this is '-1',
227 as we still have target_xfer-related code returning hardcoded
229 TARGET_XFER_E_IO
= -1,
231 /* Keep list in sync with target_xfer_status_to_string. */
234 /* Return the string form of STATUS. */
237 target_xfer_status_to_string (enum target_xfer_status status
);
239 typedef struct static_tracepoint_marker
*static_tracepoint_marker_p
;
240 DEF_VEC_P(static_tracepoint_marker_p
);
242 typedef enum target_xfer_status
243 target_xfer_partial_ftype (struct target_ops
*ops
,
244 enum target_object object
,
247 const gdb_byte
*writebuf
,
250 ULONGEST
*xfered_len
);
252 enum target_xfer_status
253 raw_memory_xfer_partial (struct target_ops
*ops
, gdb_byte
*readbuf
,
254 const gdb_byte
*writebuf
, ULONGEST memaddr
,
255 LONGEST len
, ULONGEST
*xfered_len
);
257 /* Request that OPS transfer up to LEN addressable units of the target's
258 OBJECT. When reading from a memory object, the size of an addressable unit
259 is architecture dependent and can be found using
260 gdbarch_addressable_memory_unit_size. Otherwise, an addressable unit is 1
261 byte long. BUF should point to a buffer large enough to hold the read data,
262 taking into account the addressable unit size. The OFFSET, for a seekable
263 object, specifies the starting point. The ANNEX can be used to provide
264 additional data-specific information to the target.
266 Return the number of addressable units actually transferred, or a negative
267 error code (an 'enum target_xfer_error' value) if the transfer is not
268 supported or otherwise fails. Return of a positive value less than
269 LEN indicates that no further transfer is possible. Unlike the raw
270 to_xfer_partial interface, callers of these functions do not need
271 to retry partial transfers. */
273 extern LONGEST
target_read (struct target_ops
*ops
,
274 enum target_object object
,
275 const char *annex
, gdb_byte
*buf
,
276 ULONGEST offset
, LONGEST len
);
278 struct memory_read_result
280 memory_read_result (ULONGEST begin_
, ULONGEST end_
,
281 gdb::unique_xmalloc_ptr
<gdb_byte
> &&data_
)
284 data (std::move (data_
))
288 ~memory_read_result () = default;
290 memory_read_result (memory_read_result
&&other
) = default;
292 DISABLE_COPY_AND_ASSIGN (memory_read_result
);
294 /* First address that was read. */
296 /* Past-the-end address. */
299 gdb::unique_xmalloc_ptr
<gdb_byte
> data
;
302 extern std::vector
<memory_read_result
> read_memory_robust
303 (struct target_ops
*ops
, const ULONGEST offset
, const LONGEST len
);
305 /* Request that OPS transfer up to LEN addressable units from BUF to the
306 target's OBJECT. When writing to a memory object, the addressable unit
307 size is architecture dependent and can be found using
308 gdbarch_addressable_memory_unit_size. Otherwise, an addressable unit is 1
309 byte long. The OFFSET, for a seekable object, specifies the starting point.
310 The ANNEX can be used to provide additional data-specific information to
313 Return the number of addressable units actually transferred, or a negative
314 error code (an 'enum target_xfer_status' value) if the transfer is not
315 supported or otherwise fails. Return of a positive value less than
316 LEN indicates that no further transfer is possible. Unlike the raw
317 to_xfer_partial interface, callers of these functions do not need to
318 retry partial transfers. */
320 extern LONGEST
target_write (struct target_ops
*ops
,
321 enum target_object object
,
322 const char *annex
, const gdb_byte
*buf
,
323 ULONGEST offset
, LONGEST len
);
325 /* Similar to target_write, except that it also calls PROGRESS with
326 the number of bytes written and the opaque BATON after every
327 successful partial write (and before the first write). This is
328 useful for progress reporting and user interaction while writing
329 data. To abort the transfer, the progress callback can throw an
332 LONGEST
target_write_with_progress (struct target_ops
*ops
,
333 enum target_object object
,
334 const char *annex
, const gdb_byte
*buf
,
335 ULONGEST offset
, LONGEST len
,
336 void (*progress
) (ULONGEST
, void *),
339 /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will
340 be read using OPS. The return value will be -1 if the transfer
341 fails or is not supported; 0 if the object is empty; or the length
342 of the object otherwise. If a positive value is returned, a
343 sufficiently large buffer will be allocated using xmalloc and
344 returned in *BUF_P containing the contents of the object.
346 This method should be used for objects sufficiently small to store
347 in a single xmalloc'd buffer, when no fixed bound on the object's
348 size is known in advance. Don't try to read TARGET_OBJECT_MEMORY
349 through this function. */
351 extern LONGEST
target_read_alloc (struct target_ops
*ops
,
352 enum target_object object
,
353 const char *annex
, gdb_byte
**buf_p
);
355 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
356 returned as a string, allocated using xmalloc. If an error occurs
357 or the transfer is unsupported, NULL is returned. Empty objects
358 are returned as allocated but empty strings. A warning is issued
359 if the result contains any embedded NUL bytes. */
361 extern char *target_read_stralloc (struct target_ops
*ops
,
362 enum target_object object
,
365 /* See target_ops->to_xfer_partial. */
366 extern target_xfer_partial_ftype target_xfer_partial
;
368 /* Wrappers to target read/write that perform memory transfers. They
369 throw an error if the memory transfer fails.
371 NOTE: cagney/2003-10-23: The naming schema is lifted from
372 "frame.h". The parameter order is lifted from get_frame_memory,
373 which in turn lifted it from read_memory. */
375 extern void get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
,
376 gdb_byte
*buf
, LONGEST len
);
377 extern ULONGEST
get_target_memory_unsigned (struct target_ops
*ops
,
378 CORE_ADDR addr
, int len
,
379 enum bfd_endian byte_order
);
381 struct thread_info
; /* fwd decl for parameter list below: */
383 /* The type of the callback to the to_async method. */
385 typedef void async_callback_ftype (enum inferior_event_type event_type
,
388 /* Normally target debug printing is purely type-based. However,
389 sometimes it is necessary to override the debug printing on a
390 per-argument basis. This macro can be used, attribute-style, to
391 name the target debug printing function for a particular method
392 argument. FUNC is the name of the function. The macro's
393 definition is empty because it is only used by the
394 make-target-delegates script. */
396 #define TARGET_DEBUG_PRINTER(FUNC)
398 /* These defines are used to mark target_ops methods. The script
399 make-target-delegates scans these and auto-generates the base
400 method implementations. There are four macros that can be used:
402 1. TARGET_DEFAULT_IGNORE. There is no argument. The base method
403 does nothing. This is only valid if the method return type is
406 2. TARGET_DEFAULT_NORETURN. The argument is a function call, like
407 'tcomplain ()'. The base method simply makes this call, which is
408 assumed not to return.
410 3. TARGET_DEFAULT_RETURN. The argument is a C expression. The
411 base method returns this expression's value.
413 4. TARGET_DEFAULT_FUNC. The argument is the name of a function.
414 make-target-delegates does not generate a base method in this case,
415 but instead uses the argument function as the base method. */
417 #define TARGET_DEFAULT_IGNORE()
418 #define TARGET_DEFAULT_NORETURN(ARG)
419 #define TARGET_DEFAULT_RETURN(ARG)
420 #define TARGET_DEFAULT_FUNC(ARG)
424 struct target_ops
*beneath
; /* To the target under this one. */
425 const char *to_shortname
; /* Name this target type */
426 const char *to_longname
; /* Name for printing */
427 const char *to_doc
; /* Documentation. Does not include trailing
428 newline, and starts with a one-line descrip-
429 tion (probably similar to to_longname). */
430 /* Per-target scratch pad. */
432 /* The open routine takes the rest of the parameters from the
433 command, and (if successful) pushes a new target onto the
434 stack. Targets should supply this routine, if only to provide
436 void (*to_open
) (const char *, int);
437 /* Old targets with a static target vector provide "to_close".
438 New re-entrant targets provide "to_xclose" and that is expected
439 to xfree everything (including the "struct target_ops"). */
440 void (*to_xclose
) (struct target_ops
*targ
);
441 void (*to_close
) (struct target_ops
*);
442 /* Attaches to a process on the target side. Arguments are as
443 passed to the `attach' command by the user. This routine can
444 be called when the target is not on the target-stack, if the
445 target_can_run routine returns 1; in that case, it must push
446 itself onto the stack. Upon exit, the target should be ready
447 for normal operations, and should be ready to deliver the
448 status of the process immediately (without waiting) to an
449 upcoming target_wait call. */
450 void (*to_attach
) (struct target_ops
*ops
, const char *, int);
451 void (*to_post_attach
) (struct target_ops
*, int)
452 TARGET_DEFAULT_IGNORE ();
453 void (*to_detach
) (struct target_ops
*ops
, const char *, int)
454 TARGET_DEFAULT_IGNORE ();
455 void (*to_disconnect
) (struct target_ops
*, const char *, int)
456 TARGET_DEFAULT_NORETURN (tcomplain ());
457 void (*to_resume
) (struct target_ops
*, ptid_t
,
458 int TARGET_DEBUG_PRINTER (target_debug_print_step
),
460 TARGET_DEFAULT_NORETURN (noprocess ());
461 void (*to_commit_resume
) (struct target_ops
*)
462 TARGET_DEFAULT_IGNORE ();
463 ptid_t (*to_wait
) (struct target_ops
*,
464 ptid_t
, struct target_waitstatus
*,
465 int TARGET_DEBUG_PRINTER (target_debug_print_options
))
466 TARGET_DEFAULT_FUNC (default_target_wait
);
467 void (*to_fetch_registers
) (struct target_ops
*, struct regcache
*, int)
468 TARGET_DEFAULT_IGNORE ();
469 void (*to_store_registers
) (struct target_ops
*, struct regcache
*, int)
470 TARGET_DEFAULT_NORETURN (noprocess ());
471 void (*to_prepare_to_store
) (struct target_ops
*, struct regcache
*)
472 TARGET_DEFAULT_NORETURN (noprocess ());
474 void (*to_files_info
) (struct target_ops
*)
475 TARGET_DEFAULT_IGNORE ();
476 int (*to_insert_breakpoint
) (struct target_ops
*, struct gdbarch
*,
477 struct bp_target_info
*)
478 TARGET_DEFAULT_FUNC (memory_insert_breakpoint
);
479 int (*to_remove_breakpoint
) (struct target_ops
*, struct gdbarch
*,
480 struct bp_target_info
*,
481 enum remove_bp_reason
)
482 TARGET_DEFAULT_FUNC (memory_remove_breakpoint
);
484 /* Returns true if the target stopped because it executed a
485 software breakpoint. This is necessary for correct background
486 execution / non-stop mode operation, and for correct PC
487 adjustment on targets where the PC needs to be adjusted when a
488 software breakpoint triggers. In these modes, by the time GDB
489 processes a breakpoint event, the breakpoint may already be
490 done from the target, so GDB needs to be able to tell whether
491 it should ignore the event and whether it should adjust the PC.
492 See adjust_pc_after_break. */
493 int (*to_stopped_by_sw_breakpoint
) (struct target_ops
*)
494 TARGET_DEFAULT_RETURN (0);
495 /* Returns true if the above method is supported. */
496 int (*to_supports_stopped_by_sw_breakpoint
) (struct target_ops
*)
497 TARGET_DEFAULT_RETURN (0);
499 /* Returns true if the target stopped for a hardware breakpoint.
500 Likewise, if the target supports hardware breakpoints, this
501 method is necessary for correct background execution / non-stop
502 mode operation. Even though hardware breakpoints do not
503 require PC adjustment, GDB needs to be able to tell whether the
504 hardware breakpoint event is a delayed event for a breakpoint
505 that is already gone and should thus be ignored. */
506 int (*to_stopped_by_hw_breakpoint
) (struct target_ops
*)
507 TARGET_DEFAULT_RETURN (0);
508 /* Returns true if the above method is supported. */
509 int (*to_supports_stopped_by_hw_breakpoint
) (struct target_ops
*)
510 TARGET_DEFAULT_RETURN (0);
512 int (*to_can_use_hw_breakpoint
) (struct target_ops
*,
513 enum bptype
, int, int)
514 TARGET_DEFAULT_RETURN (0);
515 int (*to_ranged_break_num_registers
) (struct target_ops
*)
516 TARGET_DEFAULT_RETURN (-1);
517 int (*to_insert_hw_breakpoint
) (struct target_ops
*,
518 struct gdbarch
*, struct bp_target_info
*)
519 TARGET_DEFAULT_RETURN (-1);
520 int (*to_remove_hw_breakpoint
) (struct target_ops
*,
521 struct gdbarch
*, struct bp_target_info
*)
522 TARGET_DEFAULT_RETURN (-1);
524 /* Documentation of what the two routines below are expected to do is
525 provided with the corresponding target_* macros. */
526 int (*to_remove_watchpoint
) (struct target_ops
*, CORE_ADDR
, int,
527 enum target_hw_bp_type
, struct expression
*)
528 TARGET_DEFAULT_RETURN (-1);
529 int (*to_insert_watchpoint
) (struct target_ops
*, CORE_ADDR
, int,
530 enum target_hw_bp_type
, struct expression
*)
531 TARGET_DEFAULT_RETURN (-1);
533 int (*to_insert_mask_watchpoint
) (struct target_ops
*,
534 CORE_ADDR
, CORE_ADDR
,
535 enum target_hw_bp_type
)
536 TARGET_DEFAULT_RETURN (1);
537 int (*to_remove_mask_watchpoint
) (struct target_ops
*,
538 CORE_ADDR
, CORE_ADDR
,
539 enum target_hw_bp_type
)
540 TARGET_DEFAULT_RETURN (1);
541 int (*to_stopped_by_watchpoint
) (struct target_ops
*)
542 TARGET_DEFAULT_RETURN (0);
543 int to_have_steppable_watchpoint
;
544 int to_have_continuable_watchpoint
;
545 int (*to_stopped_data_address
) (struct target_ops
*, CORE_ADDR
*)
546 TARGET_DEFAULT_RETURN (0);
547 int (*to_watchpoint_addr_within_range
) (struct target_ops
*,
548 CORE_ADDR
, CORE_ADDR
, int)
549 TARGET_DEFAULT_FUNC (default_watchpoint_addr_within_range
);
551 /* Documentation of this routine is provided with the corresponding
553 int (*to_region_ok_for_hw_watchpoint
) (struct target_ops
*,
555 TARGET_DEFAULT_FUNC (default_region_ok_for_hw_watchpoint
);
557 int (*to_can_accel_watchpoint_condition
) (struct target_ops
*,
560 TARGET_DEFAULT_RETURN (0);
561 int (*to_masked_watch_num_registers
) (struct target_ops
*,
562 CORE_ADDR
, CORE_ADDR
)
563 TARGET_DEFAULT_RETURN (-1);
565 /* Return 1 for sure target can do single step. Return -1 for
566 unknown. Return 0 for target can't do. */
567 int (*to_can_do_single_step
) (struct target_ops
*)
568 TARGET_DEFAULT_RETURN (-1);
570 void (*to_terminal_init
) (struct target_ops
*)
571 TARGET_DEFAULT_IGNORE ();
572 void (*to_terminal_inferior
) (struct target_ops
*)
573 TARGET_DEFAULT_IGNORE ();
574 void (*to_terminal_ours_for_output
) (struct target_ops
*)
575 TARGET_DEFAULT_IGNORE ();
576 void (*to_terminal_ours
) (struct target_ops
*)
577 TARGET_DEFAULT_IGNORE ();
578 void (*to_terminal_info
) (struct target_ops
*, const char *, int)
579 TARGET_DEFAULT_FUNC (default_terminal_info
);
580 void (*to_kill
) (struct target_ops
*)
581 TARGET_DEFAULT_NORETURN (noprocess ());
582 void (*to_load
) (struct target_ops
*, const char *, int)
583 TARGET_DEFAULT_NORETURN (tcomplain ());
584 /* Start an inferior process and set inferior_ptid to its pid.
585 EXEC_FILE is the file to run.
586 ALLARGS is a string containing the arguments to the program.
587 ENV is the environment vector to pass. Errors reported with error().
588 On VxWorks and various standalone systems, we ignore exec_file. */
589 void (*to_create_inferior
) (struct target_ops
*,
590 const char *, const std::string
&,
592 void (*to_post_startup_inferior
) (struct target_ops
*, ptid_t
)
593 TARGET_DEFAULT_IGNORE ();
594 int (*to_insert_fork_catchpoint
) (struct target_ops
*, int)
595 TARGET_DEFAULT_RETURN (1);
596 int (*to_remove_fork_catchpoint
) (struct target_ops
*, int)
597 TARGET_DEFAULT_RETURN (1);
598 int (*to_insert_vfork_catchpoint
) (struct target_ops
*, int)
599 TARGET_DEFAULT_RETURN (1);
600 int (*to_remove_vfork_catchpoint
) (struct target_ops
*, int)
601 TARGET_DEFAULT_RETURN (1);
602 int (*to_follow_fork
) (struct target_ops
*, int, int)
603 TARGET_DEFAULT_FUNC (default_follow_fork
);
604 int (*to_insert_exec_catchpoint
) (struct target_ops
*, int)
605 TARGET_DEFAULT_RETURN (1);
606 int (*to_remove_exec_catchpoint
) (struct target_ops
*, int)
607 TARGET_DEFAULT_RETURN (1);
608 void (*to_follow_exec
) (struct target_ops
*, struct inferior
*, char *)
609 TARGET_DEFAULT_IGNORE ();
610 int (*to_set_syscall_catchpoint
) (struct target_ops
*,
611 int, int, int, int, int *)
612 TARGET_DEFAULT_RETURN (1);
613 int (*to_has_exited
) (struct target_ops
*, int, int, int *)
614 TARGET_DEFAULT_RETURN (0);
615 void (*to_mourn_inferior
) (struct target_ops
*)
616 TARGET_DEFAULT_FUNC (default_mourn_inferior
);
617 /* Note that to_can_run is special and can be invoked on an
618 unpushed target. Targets defining this method must also define
619 to_can_async_p and to_supports_non_stop. */
620 int (*to_can_run
) (struct target_ops
*)
621 TARGET_DEFAULT_RETURN (0);
623 /* Documentation of this routine is provided with the corresponding
625 void (*to_pass_signals
) (struct target_ops
*, int,
626 unsigned char * TARGET_DEBUG_PRINTER (target_debug_print_signals
))
627 TARGET_DEFAULT_IGNORE ();
629 /* Documentation of this routine is provided with the
630 corresponding target_* function. */
631 void (*to_program_signals
) (struct target_ops
*, int,
632 unsigned char * TARGET_DEBUG_PRINTER (target_debug_print_signals
))
633 TARGET_DEFAULT_IGNORE ();
635 int (*to_thread_alive
) (struct target_ops
*, ptid_t ptid
)
636 TARGET_DEFAULT_RETURN (0);
637 void (*to_update_thread_list
) (struct target_ops
*)
638 TARGET_DEFAULT_IGNORE ();
639 const char *(*to_pid_to_str
) (struct target_ops
*, ptid_t
)
640 TARGET_DEFAULT_FUNC (default_pid_to_str
);
641 const char *(*to_extra_thread_info
) (struct target_ops
*, struct thread_info
*)
642 TARGET_DEFAULT_RETURN (NULL
);
643 const char *(*to_thread_name
) (struct target_ops
*, struct thread_info
*)
644 TARGET_DEFAULT_RETURN (NULL
);
645 struct thread_info
*(*to_thread_handle_to_thread_info
) (struct target_ops
*,
648 struct inferior
*inf
)
649 TARGET_DEFAULT_RETURN (NULL
);
650 void (*to_stop
) (struct target_ops
*, ptid_t
)
651 TARGET_DEFAULT_IGNORE ();
652 void (*to_interrupt
) (struct target_ops
*, ptid_t
)
653 TARGET_DEFAULT_IGNORE ();
654 void (*to_pass_ctrlc
) (struct target_ops
*)
655 TARGET_DEFAULT_FUNC (default_target_pass_ctrlc
);
656 void (*to_rcmd
) (struct target_ops
*,
657 const char *command
, struct ui_file
*output
)
658 TARGET_DEFAULT_FUNC (default_rcmd
);
659 char *(*to_pid_to_exec_file
) (struct target_ops
*, int pid
)
660 TARGET_DEFAULT_RETURN (NULL
);
661 void (*to_log_command
) (struct target_ops
*, const char *)
662 TARGET_DEFAULT_IGNORE ();
663 struct target_section_table
*(*to_get_section_table
) (struct target_ops
*)
664 TARGET_DEFAULT_RETURN (NULL
);
665 enum strata to_stratum
;
666 int (*to_has_all_memory
) (struct target_ops
*);
667 int (*to_has_memory
) (struct target_ops
*);
668 int (*to_has_stack
) (struct target_ops
*);
669 int (*to_has_registers
) (struct target_ops
*);
670 int (*to_has_execution
) (struct target_ops
*, ptid_t
);
671 int to_has_thread_control
; /* control thread execution */
672 int to_attach_no_wait
;
673 /* This method must be implemented in some situations. See the
674 comment on 'to_can_run'. */
675 int (*to_can_async_p
) (struct target_ops
*)
676 TARGET_DEFAULT_RETURN (0);
677 int (*to_is_async_p
) (struct target_ops
*)
678 TARGET_DEFAULT_RETURN (0);
679 void (*to_async
) (struct target_ops
*, int)
680 TARGET_DEFAULT_NORETURN (tcomplain ());
681 void (*to_thread_events
) (struct target_ops
*, int)
682 TARGET_DEFAULT_IGNORE ();
683 /* This method must be implemented in some situations. See the
684 comment on 'to_can_run'. */
685 int (*to_supports_non_stop
) (struct target_ops
*)
686 TARGET_DEFAULT_RETURN (0);
687 /* Return true if the target operates in non-stop mode even with
688 "set non-stop off". */
689 int (*to_always_non_stop_p
) (struct target_ops
*)
690 TARGET_DEFAULT_RETURN (0);
691 /* find_memory_regions support method for gcore */
692 int (*to_find_memory_regions
) (struct target_ops
*,
693 find_memory_region_ftype func
, void *data
)
694 TARGET_DEFAULT_FUNC (dummy_find_memory_regions
);
695 /* make_corefile_notes support method for gcore */
696 char * (*to_make_corefile_notes
) (struct target_ops
*, bfd
*, int *)
697 TARGET_DEFAULT_FUNC (dummy_make_corefile_notes
);
698 /* get_bookmark support method for bookmarks */
699 gdb_byte
* (*to_get_bookmark
) (struct target_ops
*, const char *, int)
700 TARGET_DEFAULT_NORETURN (tcomplain ());
701 /* goto_bookmark support method for bookmarks */
702 void (*to_goto_bookmark
) (struct target_ops
*, const gdb_byte
*, int)
703 TARGET_DEFAULT_NORETURN (tcomplain ());
704 /* Return the thread-local address at OFFSET in the
705 thread-local storage for the thread PTID and the shared library
706 or executable file given by OBJFILE. If that block of
707 thread-local storage hasn't been allocated yet, this function
708 may return an error. LOAD_MODULE_ADDR may be zero for statically
709 linked multithreaded inferiors. */
710 CORE_ADDR (*to_get_thread_local_address
) (struct target_ops
*ops
,
712 CORE_ADDR load_module_addr
,
714 TARGET_DEFAULT_NORETURN (generic_tls_error ());
716 /* Request that OPS transfer up to LEN addressable units of the target's
717 OBJECT. When reading from a memory object, the size of an addressable
718 unit is architecture dependent and can be found using
719 gdbarch_addressable_memory_unit_size. Otherwise, an addressable unit is
720 1 byte long. The OFFSET, for a seekable object, specifies the
721 starting point. The ANNEX can be used to provide additional
722 data-specific information to the target.
724 Return the transferred status, error or OK (an
725 'enum target_xfer_status' value). Save the number of addressable units
726 actually transferred in *XFERED_LEN if transfer is successful
727 (TARGET_XFER_OK) or the number unavailable units if the requested
728 data is unavailable (TARGET_XFER_UNAVAILABLE). *XFERED_LEN
729 smaller than LEN does not indicate the end of the object, only
730 the end of the transfer; higher level code should continue
731 transferring if desired. This is handled in target.c.
733 The interface does not support a "retry" mechanism. Instead it
734 assumes that at least one addressable unit will be transfered on each
737 NOTE: cagney/2003-10-17: The current interface can lead to
738 fragmented transfers. Lower target levels should not implement
739 hacks, such as enlarging the transfer, in an attempt to
740 compensate for this. Instead, the target stack should be
741 extended so that it implements supply/collect methods and a
742 look-aside object cache. With that available, the lowest
743 target can safely and freely "push" data up the stack.
745 See target_read and target_write for more information. One,
746 and only one, of readbuf or writebuf must be non-NULL. */
748 enum target_xfer_status (*to_xfer_partial
) (struct target_ops
*ops
,
749 enum target_object object
,
752 const gdb_byte
*writebuf
,
753 ULONGEST offset
, ULONGEST len
,
754 ULONGEST
*xfered_len
)
755 TARGET_DEFAULT_RETURN (TARGET_XFER_E_IO
);
757 /* Return the limit on the size of any single memory transfer
760 ULONGEST (*to_get_memory_xfer_limit
) (struct target_ops
*)
761 TARGET_DEFAULT_RETURN (ULONGEST_MAX
);
763 /* Returns the memory map for the target. A return value of NULL
764 means that no memory map is available. If a memory address
765 does not fall within any returned regions, it's assumed to be
766 RAM. The returned memory regions should not overlap.
768 The order of regions does not matter; target_memory_map will
769 sort regions by starting address. For that reason, this
770 function should not be called directly except via
773 This method should not cache data; if the memory map could
774 change unexpectedly, it should be invalidated, and higher
775 layers will re-fetch it. */
776 VEC(mem_region_s
) *(*to_memory_map
) (struct target_ops
*)
777 TARGET_DEFAULT_RETURN (NULL
);
779 /* Erases the region of flash memory starting at ADDRESS, of
782 Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned
783 on flash block boundaries, as reported by 'to_memory_map'. */
784 void (*to_flash_erase
) (struct target_ops
*,
785 ULONGEST address
, LONGEST length
)
786 TARGET_DEFAULT_NORETURN (tcomplain ());
788 /* Finishes a flash memory write sequence. After this operation
789 all flash memory should be available for writing and the result
790 of reading from areas written by 'to_flash_write' should be
791 equal to what was written. */
792 void (*to_flash_done
) (struct target_ops
*)
793 TARGET_DEFAULT_NORETURN (tcomplain ());
795 /* Describe the architecture-specific features of this target. If
796 OPS doesn't have a description, this should delegate to the
797 "beneath" target. Returns the description found, or NULL if no
798 description was available. */
799 const struct target_desc
*(*to_read_description
) (struct target_ops
*ops
)
800 TARGET_DEFAULT_RETURN (NULL
);
802 /* Build the PTID of the thread on which a given task is running,
803 based on LWP and THREAD. These values are extracted from the
804 task Private_Data section of the Ada Task Control Block, and
805 their interpretation depends on the target. */
806 ptid_t (*to_get_ada_task_ptid
) (struct target_ops
*,
807 long lwp
, long thread
)
808 TARGET_DEFAULT_FUNC (default_get_ada_task_ptid
);
810 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
811 Return 0 if *READPTR is already at the end of the buffer.
812 Return -1 if there is insufficient buffer for a whole entry.
813 Return 1 if an entry was read into *TYPEP and *VALP. */
814 int (*to_auxv_parse
) (struct target_ops
*ops
, gdb_byte
**readptr
,
815 gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
)
816 TARGET_DEFAULT_FUNC (default_auxv_parse
);
818 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
819 sequence of bytes in PATTERN with length PATTERN_LEN.
821 The result is 1 if found, 0 if not found, and -1 if there was an error
822 requiring halting of the search (e.g. memory read error).
823 If the pattern is found the address is recorded in FOUND_ADDRP. */
824 int (*to_search_memory
) (struct target_ops
*ops
,
825 CORE_ADDR start_addr
, ULONGEST search_space_len
,
826 const gdb_byte
*pattern
, ULONGEST pattern_len
,
827 CORE_ADDR
*found_addrp
)
828 TARGET_DEFAULT_FUNC (default_search_memory
);
830 /* Can target execute in reverse? */
831 int (*to_can_execute_reverse
) (struct target_ops
*)
832 TARGET_DEFAULT_RETURN (0);
834 /* The direction the target is currently executing. Must be
835 implemented on targets that support reverse execution and async
836 mode. The default simply returns forward execution. */
837 enum exec_direction_kind (*to_execution_direction
) (struct target_ops
*)
838 TARGET_DEFAULT_FUNC (default_execution_direction
);
840 /* Does this target support debugging multiple processes
842 int (*to_supports_multi_process
) (struct target_ops
*)
843 TARGET_DEFAULT_RETURN (0);
845 /* Does this target support enabling and disabling tracepoints while a trace
846 experiment is running? */
847 int (*to_supports_enable_disable_tracepoint
) (struct target_ops
*)
848 TARGET_DEFAULT_RETURN (0);
850 /* Does this target support disabling address space randomization? */
851 int (*to_supports_disable_randomization
) (struct target_ops
*);
853 /* Does this target support the tracenz bytecode for string collection? */
854 int (*to_supports_string_tracing
) (struct target_ops
*)
855 TARGET_DEFAULT_RETURN (0);
857 /* Does this target support evaluation of breakpoint conditions on its
859 int (*to_supports_evaluation_of_breakpoint_conditions
) (struct target_ops
*)
860 TARGET_DEFAULT_RETURN (0);
862 /* Does this target support evaluation of breakpoint commands on its
864 int (*to_can_run_breakpoint_commands
) (struct target_ops
*)
865 TARGET_DEFAULT_RETURN (0);
867 /* Determine current architecture of thread PTID.
869 The target is supposed to determine the architecture of the code where
870 the target is currently stopped at (on Cell, if a target is in spu_run,
871 to_thread_architecture would return SPU, otherwise PPC32 or PPC64).
872 This is architecture used to perform decr_pc_after_break adjustment,
873 and also determines the frame architecture of the innermost frame.
874 ptrace operations need to operate according to target_gdbarch ().
876 The default implementation always returns target_gdbarch (). */
877 struct gdbarch
*(*to_thread_architecture
) (struct target_ops
*, ptid_t
)
878 TARGET_DEFAULT_FUNC (default_thread_architecture
);
880 /* Determine current address space of thread PTID.
882 The default implementation always returns the inferior's
884 struct address_space
*(*to_thread_address_space
) (struct target_ops
*,
886 TARGET_DEFAULT_FUNC (default_thread_address_space
);
888 /* Target file operations. */
890 /* Return nonzero if the filesystem seen by the current inferior
891 is the local filesystem, zero otherwise. */
892 int (*to_filesystem_is_local
) (struct target_ops
*)
893 TARGET_DEFAULT_RETURN (1);
895 /* Open FILENAME on the target, in the filesystem as seen by INF,
896 using FLAGS and MODE. If INF is NULL, use the filesystem seen
897 by the debugger (GDB or, for remote targets, the remote stub).
898 If WARN_IF_SLOW is nonzero, print a warning message if the file
899 is being accessed over a link that may be slow. Return a
900 target file descriptor, or -1 if an error occurs (and set
902 int (*to_fileio_open
) (struct target_ops
*,
903 struct inferior
*inf
, const char *filename
,
904 int flags
, int mode
, int warn_if_slow
,
907 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
908 Return the number of bytes written, or -1 if an error occurs
909 (and set *TARGET_ERRNO). */
910 int (*to_fileio_pwrite
) (struct target_ops
*,
911 int fd
, const gdb_byte
*write_buf
, int len
,
912 ULONGEST offset
, int *target_errno
);
914 /* Read up to LEN bytes FD on the target into READ_BUF.
915 Return the number of bytes read, or -1 if an error occurs
916 (and set *TARGET_ERRNO). */
917 int (*to_fileio_pread
) (struct target_ops
*,
918 int fd
, gdb_byte
*read_buf
, int len
,
919 ULONGEST offset
, int *target_errno
);
921 /* Get information about the file opened as FD and put it in
922 SB. Return 0 on success, or -1 if an error occurs (and set
924 int (*to_fileio_fstat
) (struct target_ops
*,
925 int fd
, struct stat
*sb
, int *target_errno
);
927 /* Close FD on the target. Return 0, or -1 if an error occurs
928 (and set *TARGET_ERRNO). */
929 int (*to_fileio_close
) (struct target_ops
*, int fd
, int *target_errno
);
931 /* Unlink FILENAME on the target, in the filesystem as seen by
932 INF. If INF is NULL, use the filesystem seen by the debugger
933 (GDB or, for remote targets, the remote stub). Return 0, or
934 -1 if an error occurs (and set *TARGET_ERRNO). */
935 int (*to_fileio_unlink
) (struct target_ops
*,
936 struct inferior
*inf
,
937 const char *filename
,
940 /* Read value of symbolic link FILENAME on the target, in the
941 filesystem as seen by INF. If INF is NULL, use the filesystem
942 seen by the debugger (GDB or, for remote targets, the remote
943 stub). Return a null-terminated string allocated via xmalloc,
944 or NULL if an error occurs (and set *TARGET_ERRNO). */
945 char *(*to_fileio_readlink
) (struct target_ops
*,
946 struct inferior
*inf
,
947 const char *filename
,
951 /* Implement the "info proc" command. */
952 void (*to_info_proc
) (struct target_ops
*, const char *,
953 enum info_proc_what
);
955 /* Tracepoint-related operations. */
957 /* Prepare the target for a tracing run. */
958 void (*to_trace_init
) (struct target_ops
*)
959 TARGET_DEFAULT_NORETURN (tcomplain ());
961 /* Send full details of a tracepoint location to the target. */
962 void (*to_download_tracepoint
) (struct target_ops
*,
963 struct bp_location
*location
)
964 TARGET_DEFAULT_NORETURN (tcomplain ());
966 /* Is the target able to download tracepoint locations in current
968 int (*to_can_download_tracepoint
) (struct target_ops
*)
969 TARGET_DEFAULT_RETURN (0);
971 /* Send full details of a trace state variable to the target. */
972 void (*to_download_trace_state_variable
) (struct target_ops
*,
973 struct trace_state_variable
*tsv
)
974 TARGET_DEFAULT_NORETURN (tcomplain ());
976 /* Enable a tracepoint on the target. */
977 void (*to_enable_tracepoint
) (struct target_ops
*,
978 struct bp_location
*location
)
979 TARGET_DEFAULT_NORETURN (tcomplain ());
981 /* Disable a tracepoint on the target. */
982 void (*to_disable_tracepoint
) (struct target_ops
*,
983 struct bp_location
*location
)
984 TARGET_DEFAULT_NORETURN (tcomplain ());
986 /* Inform the target info of memory regions that are readonly
987 (such as text sections), and so it should return data from
988 those rather than look in the trace buffer. */
989 void (*to_trace_set_readonly_regions
) (struct target_ops
*)
990 TARGET_DEFAULT_NORETURN (tcomplain ());
992 /* Start a trace run. */
993 void (*to_trace_start
) (struct target_ops
*)
994 TARGET_DEFAULT_NORETURN (tcomplain ());
996 /* Get the current status of a tracing run. */
997 int (*to_get_trace_status
) (struct target_ops
*, struct trace_status
*ts
)
998 TARGET_DEFAULT_RETURN (-1);
1000 void (*to_get_tracepoint_status
) (struct target_ops
*,
1001 struct breakpoint
*tp
,
1002 struct uploaded_tp
*utp
)
1003 TARGET_DEFAULT_NORETURN (tcomplain ());
1005 /* Stop a trace run. */
1006 void (*to_trace_stop
) (struct target_ops
*)
1007 TARGET_DEFAULT_NORETURN (tcomplain ());
1009 /* Ask the target to find a trace frame of the given type TYPE,
1010 using NUM, ADDR1, and ADDR2 as search parameters. Returns the
1011 number of the trace frame, and also the tracepoint number at
1012 TPP. If no trace frame matches, return -1. May throw if the
1014 int (*to_trace_find
) (struct target_ops
*,
1015 enum trace_find_type type
, int num
,
1016 CORE_ADDR addr1
, CORE_ADDR addr2
, int *tpp
)
1017 TARGET_DEFAULT_RETURN (-1);
1019 /* Get the value of the trace state variable number TSV, returning
1020 1 if the value is known and writing the value itself into the
1021 location pointed to by VAL, else returning 0. */
1022 int (*to_get_trace_state_variable_value
) (struct target_ops
*,
1023 int tsv
, LONGEST
*val
)
1024 TARGET_DEFAULT_RETURN (0);
1026 int (*to_save_trace_data
) (struct target_ops
*, const char *filename
)
1027 TARGET_DEFAULT_NORETURN (tcomplain ());
1029 int (*to_upload_tracepoints
) (struct target_ops
*,
1030 struct uploaded_tp
**utpp
)
1031 TARGET_DEFAULT_RETURN (0);
1033 int (*to_upload_trace_state_variables
) (struct target_ops
*,
1034 struct uploaded_tsv
**utsvp
)
1035 TARGET_DEFAULT_RETURN (0);
1037 LONGEST (*to_get_raw_trace_data
) (struct target_ops
*, gdb_byte
*buf
,
1038 ULONGEST offset
, LONGEST len
)
1039 TARGET_DEFAULT_NORETURN (tcomplain ());
1041 /* Get the minimum length of instruction on which a fast tracepoint
1042 may be set on the target. If this operation is unsupported,
1043 return -1. If for some reason the minimum length cannot be
1044 determined, return 0. */
1045 int (*to_get_min_fast_tracepoint_insn_len
) (struct target_ops
*)
1046 TARGET_DEFAULT_RETURN (-1);
1048 /* Set the target's tracing behavior in response to unexpected
1049 disconnection - set VAL to 1 to keep tracing, 0 to stop. */
1050 void (*to_set_disconnected_tracing
) (struct target_ops
*, int val
)
1051 TARGET_DEFAULT_IGNORE ();
1052 void (*to_set_circular_trace_buffer
) (struct target_ops
*, int val
)
1053 TARGET_DEFAULT_IGNORE ();
1054 /* Set the size of trace buffer in the target. */
1055 void (*to_set_trace_buffer_size
) (struct target_ops
*, LONGEST val
)
1056 TARGET_DEFAULT_IGNORE ();
1058 /* Add/change textual notes about the trace run, returning 1 if
1059 successful, 0 otherwise. */
1060 int (*to_set_trace_notes
) (struct target_ops
*,
1061 const char *user
, const char *notes
,
1062 const char *stopnotes
)
1063 TARGET_DEFAULT_RETURN (0);
1065 /* Return the processor core that thread PTID was last seen on.
1066 This information is updated only when:
1067 - update_thread_list is called
1069 If the core cannot be determined -- either for the specified
1070 thread, or right now, or in this debug session, or for this
1071 target -- return -1. */
1072 int (*to_core_of_thread
) (struct target_ops
*, ptid_t ptid
)
1073 TARGET_DEFAULT_RETURN (-1);
1075 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range
1076 matches the contents of [DATA,DATA+SIZE). Returns 1 if there's
1077 a match, 0 if there's a mismatch, and -1 if an error is
1078 encountered while reading memory. */
1079 int (*to_verify_memory
) (struct target_ops
*, const gdb_byte
*data
,
1080 CORE_ADDR memaddr
, ULONGEST size
)
1081 TARGET_DEFAULT_FUNC (default_verify_memory
);
1083 /* Return the address of the start of the Thread Information Block
1084 a Windows OS specific feature. */
1085 int (*to_get_tib_address
) (struct target_ops
*,
1086 ptid_t ptid
, CORE_ADDR
*addr
)
1087 TARGET_DEFAULT_NORETURN (tcomplain ());
1089 /* Send the new settings of write permission variables. */
1090 void (*to_set_permissions
) (struct target_ops
*)
1091 TARGET_DEFAULT_IGNORE ();
1093 /* Look for a static tracepoint marker at ADDR, and fill in MARKER
1094 with its details. Return 1 on success, 0 on failure. */
1095 int (*to_static_tracepoint_marker_at
) (struct target_ops
*, CORE_ADDR
,
1096 struct static_tracepoint_marker
*marker
)
1097 TARGET_DEFAULT_RETURN (0);
1099 /* Return a vector of all tracepoints markers string id ID, or all
1100 markers if ID is NULL. */
1101 VEC(static_tracepoint_marker_p
) *(*to_static_tracepoint_markers_by_strid
) (struct target_ops
*, const char *id
)
1102 TARGET_DEFAULT_NORETURN (tcomplain ());
1104 /* Return a traceframe info object describing the current
1105 traceframe's contents. This method should not cache data;
1106 higher layers take care of caching, invalidating, and
1107 re-fetching when necessary. */
1108 traceframe_info_up (*to_traceframe_info
) (struct target_ops
*)
1109 TARGET_DEFAULT_NORETURN (tcomplain ());
1111 /* Ask the target to use or not to use agent according to USE. Return 1
1112 successful, 0 otherwise. */
1113 int (*to_use_agent
) (struct target_ops
*, int use
)
1114 TARGET_DEFAULT_NORETURN (tcomplain ());
1116 /* Is the target able to use agent in current state? */
1117 int (*to_can_use_agent
) (struct target_ops
*)
1118 TARGET_DEFAULT_RETURN (0);
1120 /* Check whether the target supports branch tracing. */
1121 int (*to_supports_btrace
) (struct target_ops
*, enum btrace_format
)
1122 TARGET_DEFAULT_RETURN (0);
1124 /* Enable branch tracing for PTID using CONF configuration.
1125 Return a branch trace target information struct for reading and for
1126 disabling branch trace. */
1127 struct btrace_target_info
*(*to_enable_btrace
) (struct target_ops
*,
1129 const struct btrace_config
*conf
)
1130 TARGET_DEFAULT_NORETURN (tcomplain ());
1132 /* Disable branch tracing and deallocate TINFO. */
1133 void (*to_disable_btrace
) (struct target_ops
*,
1134 struct btrace_target_info
*tinfo
)
1135 TARGET_DEFAULT_NORETURN (tcomplain ());
1137 /* Disable branch tracing and deallocate TINFO. This function is similar
1138 to to_disable_btrace, except that it is called during teardown and is
1139 only allowed to perform actions that are safe. A counter-example would
1140 be attempting to talk to a remote target. */
1141 void (*to_teardown_btrace
) (struct target_ops
*,
1142 struct btrace_target_info
*tinfo
)
1143 TARGET_DEFAULT_NORETURN (tcomplain ());
1145 /* Read branch trace data for the thread indicated by BTINFO into DATA.
1146 DATA is cleared before new trace is added. */
1147 enum btrace_error (*to_read_btrace
) (struct target_ops
*self
,
1148 struct btrace_data
*data
,
1149 struct btrace_target_info
*btinfo
,
1150 enum btrace_read_type type
)
1151 TARGET_DEFAULT_NORETURN (tcomplain ());
1153 /* Get the branch trace configuration. */
1154 const struct btrace_config
*(*to_btrace_conf
) (struct target_ops
*self
,
1155 const struct btrace_target_info
*)
1156 TARGET_DEFAULT_RETURN (NULL
);
1158 /* Current recording method. */
1159 enum record_method (*to_record_method
) (struct target_ops
*, ptid_t ptid
)
1160 TARGET_DEFAULT_RETURN (RECORD_METHOD_NONE
);
1162 /* Stop trace recording. */
1163 void (*to_stop_recording
) (struct target_ops
*)
1164 TARGET_DEFAULT_IGNORE ();
1166 /* Print information about the recording. */
1167 void (*to_info_record
) (struct target_ops
*)
1168 TARGET_DEFAULT_IGNORE ();
1170 /* Save the recorded execution trace into a file. */
1171 void (*to_save_record
) (struct target_ops
*, const char *filename
)
1172 TARGET_DEFAULT_NORETURN (tcomplain ());
1174 /* Delete the recorded execution trace from the current position
1176 void (*to_delete_record
) (struct target_ops
*)
1177 TARGET_DEFAULT_NORETURN (tcomplain ());
1179 /* Query if the record target is currently replaying PTID. */
1180 int (*to_record_is_replaying
) (struct target_ops
*, ptid_t ptid
)
1181 TARGET_DEFAULT_RETURN (0);
1183 /* Query if the record target will replay PTID if it were resumed in
1184 execution direction DIR. */
1185 int (*to_record_will_replay
) (struct target_ops
*, ptid_t ptid
, int dir
)
1186 TARGET_DEFAULT_RETURN (0);
1188 /* Stop replaying. */
1189 void (*to_record_stop_replaying
) (struct target_ops
*)
1190 TARGET_DEFAULT_IGNORE ();
1192 /* Go to the begin of the execution trace. */
1193 void (*to_goto_record_begin
) (struct target_ops
*)
1194 TARGET_DEFAULT_NORETURN (tcomplain ());
1196 /* Go to the end of the execution trace. */
1197 void (*to_goto_record_end
) (struct target_ops
*)
1198 TARGET_DEFAULT_NORETURN (tcomplain ());
1200 /* Go to a specific location in the recorded execution trace. */
1201 void (*to_goto_record
) (struct target_ops
*, ULONGEST insn
)
1202 TARGET_DEFAULT_NORETURN (tcomplain ());
1204 /* Disassemble SIZE instructions in the recorded execution trace from
1205 the current position.
1206 If SIZE < 0, disassemble abs (SIZE) preceding instructions; otherwise,
1207 disassemble SIZE succeeding instructions. */
1208 void (*to_insn_history
) (struct target_ops
*, int size
,
1209 gdb_disassembly_flags flags
)
1210 TARGET_DEFAULT_NORETURN (tcomplain ());
1212 /* Disassemble SIZE instructions in the recorded execution trace around
1214 If SIZE < 0, disassemble abs (SIZE) instructions before FROM; otherwise,
1215 disassemble SIZE instructions after FROM. */
1216 void (*to_insn_history_from
) (struct target_ops
*,
1217 ULONGEST from
, int size
,
1218 gdb_disassembly_flags flags
)
1219 TARGET_DEFAULT_NORETURN (tcomplain ());
1221 /* Disassemble a section of the recorded execution trace from instruction
1222 BEGIN (inclusive) to instruction END (inclusive). */
1223 void (*to_insn_history_range
) (struct target_ops
*,
1224 ULONGEST begin
, ULONGEST end
,
1225 gdb_disassembly_flags flags
)
1226 TARGET_DEFAULT_NORETURN (tcomplain ());
1228 /* Print a function trace of the recorded execution trace.
1229 If SIZE < 0, print abs (SIZE) preceding functions; otherwise, print SIZE
1230 succeeding functions. */
1231 void (*to_call_history
) (struct target_ops
*, int size
, int flags
)
1232 TARGET_DEFAULT_NORETURN (tcomplain ());
1234 /* Print a function trace of the recorded execution trace starting
1236 If SIZE < 0, print abs (SIZE) functions before FROM; otherwise, print
1237 SIZE functions after FROM. */
1238 void (*to_call_history_from
) (struct target_ops
*,
1239 ULONGEST begin
, int size
, int flags
)
1240 TARGET_DEFAULT_NORETURN (tcomplain ());
1242 /* Print a function trace of an execution trace section from function BEGIN
1243 (inclusive) to function END (inclusive). */
1244 void (*to_call_history_range
) (struct target_ops
*,
1245 ULONGEST begin
, ULONGEST end
, int flags
)
1246 TARGET_DEFAULT_NORETURN (tcomplain ());
1248 /* Nonzero if TARGET_OBJECT_LIBRARIES_SVR4 may be read with a
1250 int (*to_augmented_libraries_svr4_read
) (struct target_ops
*)
1251 TARGET_DEFAULT_RETURN (0);
1253 /* Those unwinders are tried before any other arch unwinders. If
1254 SELF doesn't have unwinders, it should delegate to the
1255 "beneath" target. */
1256 const struct frame_unwind
*(*to_get_unwinder
) (struct target_ops
*self
)
1257 TARGET_DEFAULT_RETURN (NULL
);
1259 const struct frame_unwind
*(*to_get_tailcall_unwinder
) (struct target_ops
*self
)
1260 TARGET_DEFAULT_RETURN (NULL
);
1262 /* Prepare to generate a core file. */
1263 void (*to_prepare_to_generate_core
) (struct target_ops
*)
1264 TARGET_DEFAULT_IGNORE ();
1266 /* Cleanup after generating a core file. */
1267 void (*to_done_generating_core
) (struct target_ops
*)
1268 TARGET_DEFAULT_IGNORE ();
1271 /* Need sub-structure for target machine related rather than comm related?
1275 /* Magic number for checking ops size. If a struct doesn't end with this
1276 number, somebody changed the declaration but didn't change all the
1277 places that initialize one. */
1279 #define OPS_MAGIC 3840
1281 /* The ops structure for our "current" target process. This should
1282 never be NULL. If there is no target, it points to the dummy_target. */
1284 extern struct target_ops current_target
;
1286 /* Define easy words for doing these operations on our current target. */
1288 #define target_shortname (current_target.to_shortname)
1289 #define target_longname (current_target.to_longname)
1291 /* Does whatever cleanup is required for a target that we are no
1292 longer going to be calling. This routine is automatically always
1293 called after popping the target off the target stack - the target's
1294 own methods are no longer available through the target vector.
1295 Closing file descriptors and freeing all memory allocated memory are
1296 typical things it should do. */
1298 void target_close (struct target_ops
*targ
);
1300 /* Find the correct target to use for "attach". If a target on the
1301 current stack supports attaching, then it is returned. Otherwise,
1302 the default run target is returned. */
1304 extern struct target_ops
*find_attach_target (void);
1306 /* Find the correct target to use for "run". If a target on the
1307 current stack supports creating a new inferior, then it is
1308 returned. Otherwise, the default run target is returned. */
1310 extern struct target_ops
*find_run_target (void);
1312 /* Some targets don't generate traps when attaching to the inferior,
1313 or their target_attach implementation takes care of the waiting.
1314 These targets must set to_attach_no_wait. */
1316 #define target_attach_no_wait \
1317 (current_target.to_attach_no_wait)
1319 /* The target_attach operation places a process under debugger control,
1320 and stops the process.
1322 This operation provides a target-specific hook that allows the
1323 necessary bookkeeping to be performed after an attach completes. */
1324 #define target_post_attach(pid) \
1325 (*current_target.to_post_attach) (¤t_target, pid)
1327 /* Display a message indicating we're about to detach from the current
1328 inferior process. */
1330 extern void target_announce_detach (int from_tty
);
1332 /* Takes a program previously attached to and detaches it.
1333 The program may resume execution (some targets do, some don't) and will
1334 no longer stop on signals, etc. We better not have left any breakpoints
1335 in the program or it'll die when it hits one. ARGS is arguments
1336 typed by the user (e.g. a signal to send the process). FROM_TTY
1337 says whether to be verbose or not. */
1339 extern void target_detach (const char *, int);
1341 /* Disconnect from the current target without resuming it (leaving it
1342 waiting for a debugger). */
1344 extern void target_disconnect (const char *, int);
1346 /* Resume execution (or prepare for execution) of a target thread,
1347 process or all processes. STEP says whether to hardware
1348 single-step or to run free; SIGGNAL is the signal to be given to
1349 the target, or GDB_SIGNAL_0 for no signal. The caller may not pass
1350 GDB_SIGNAL_DEFAULT. A specific PTID means `step/resume only this
1351 process id'. A wildcard PTID (all threads, or all threads of
1352 process) means `step/resume INFERIOR_PTID, and let other threads
1353 (for which the wildcard PTID matches) resume with their
1354 'thread->suspend.stop_signal' signal (usually GDB_SIGNAL_0) if it
1355 is in "pass" state, or with no signal if in "no pass" state.
1357 In order to efficiently handle batches of resumption requests,
1358 targets may implement this method such that it records the
1359 resumption request, but defers the actual resumption to the
1360 target_commit_resume method implementation. See
1361 target_commit_resume below. */
1362 extern void target_resume (ptid_t ptid
, int step
, enum gdb_signal signal
);
1364 /* Commit a series of resumption requests previously prepared with
1365 target_resume calls.
1367 GDB always calls target_commit_resume after calling target_resume
1368 one or more times. A target may thus use this method in
1369 coordination with the target_resume method to batch target-side
1370 resumption requests. In that case, the target doesn't actually
1371 resume in its target_resume implementation. Instead, it prepares
1372 the resumption in target_resume, and defers the actual resumption
1373 to target_commit_resume. E.g., the remote target uses this to
1374 coalesce multiple resumption requests in a single vCont packet. */
1375 extern void target_commit_resume ();
1377 /* Setup to defer target_commit_resume calls, and reactivate
1378 target_commit_resume on destruction, if it was previously
1380 extern scoped_restore_tmpl
<int> make_scoped_defer_target_commit_resume ();
1382 /* For target_read_memory see target/target.h. */
1384 /* The default target_ops::to_wait implementation. */
1386 extern ptid_t
default_target_wait (struct target_ops
*ops
,
1388 struct target_waitstatus
*status
,
1391 /* Fetch at least register REGNO, or all regs if regno == -1. No result. */
1393 extern void target_fetch_registers (struct regcache
*regcache
, int regno
);
1395 /* Store at least register REGNO, or all regs if REGNO == -1.
1396 It can store as many registers as it wants to, so target_prepare_to_store
1397 must have been previously called. Calls error() if there are problems. */
1399 extern void target_store_registers (struct regcache
*regcache
, int regs
);
1401 /* Get ready to modify the registers array. On machines which store
1402 individual registers, this doesn't need to do anything. On machines
1403 which store all the registers in one fell swoop, this makes sure
1404 that REGISTERS contains all the registers from the program being
1407 #define target_prepare_to_store(regcache) \
1408 (*current_target.to_prepare_to_store) (¤t_target, regcache)
1410 /* Determine current address space of thread PTID. */
1412 struct address_space
*target_thread_address_space (ptid_t
);
1414 /* Implement the "info proc" command. This returns one if the request
1415 was handled, and zero otherwise. It can also throw an exception if
1416 an error was encountered while attempting to handle the
1419 int target_info_proc (const char *, enum info_proc_what
);
1421 /* Returns true if this target can disable address space randomization. */
1423 int target_supports_disable_randomization (void);
1425 /* Returns true if this target can enable and disable tracepoints
1426 while a trace experiment is running. */
1428 #define target_supports_enable_disable_tracepoint() \
1429 (*current_target.to_supports_enable_disable_tracepoint) (¤t_target)
1431 #define target_supports_string_tracing() \
1432 (*current_target.to_supports_string_tracing) (¤t_target)
1434 /* Returns true if this target can handle breakpoint conditions
1437 #define target_supports_evaluation_of_breakpoint_conditions() \
1438 (*current_target.to_supports_evaluation_of_breakpoint_conditions) (¤t_target)
1440 /* Returns true if this target can handle breakpoint commands
1443 #define target_can_run_breakpoint_commands() \
1444 (*current_target.to_can_run_breakpoint_commands) (¤t_target)
1446 extern int target_read_string (CORE_ADDR
, char **, int, int *);
1448 /* For target_read_memory see target/target.h. */
1450 extern int target_read_raw_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
1453 extern int target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
);
1455 extern int target_read_code (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
);
1457 /* For target_write_memory see target/target.h. */
1459 extern int target_write_raw_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
,
1462 /* Fetches the target's memory map. If one is found it is sorted
1463 and returned, after some consistency checking. Otherwise, NULL
1465 VEC(mem_region_s
) *target_memory_map (void);
1467 /* Erases all flash memory regions on the target. */
1468 void flash_erase_command (char *cmd
, int from_tty
);
1470 /* Erase the specified flash region. */
1471 void target_flash_erase (ULONGEST address
, LONGEST length
);
1473 /* Finish a sequence of flash operations. */
1474 void target_flash_done (void);
1476 /* Describes a request for a memory write operation. */
1477 struct memory_write_request
1479 /* Begining address that must be written. */
1481 /* Past-the-end address. */
1483 /* The data to write. */
1485 /* A callback baton for progress reporting for this request. */
1488 typedef struct memory_write_request memory_write_request_s
;
1489 DEF_VEC_O(memory_write_request_s
);
1491 /* Enumeration specifying different flash preservation behaviour. */
1492 enum flash_preserve_mode
1498 /* Write several memory blocks at once. This version can be more
1499 efficient than making several calls to target_write_memory, in
1500 particular because it can optimize accesses to flash memory.
1502 Moreover, this is currently the only memory access function in gdb
1503 that supports writing to flash memory, and it should be used for
1504 all cases where access to flash memory is desirable.
1506 REQUESTS is the vector (see vec.h) of memory_write_request.
1507 PRESERVE_FLASH_P indicates what to do with blocks which must be
1508 erased, but not completely rewritten.
1509 PROGRESS_CB is a function that will be periodically called to provide
1510 feedback to user. It will be called with the baton corresponding
1511 to the request currently being written. It may also be called
1512 with a NULL baton, when preserved flash sectors are being rewritten.
1514 The function returns 0 on success, and error otherwise. */
1515 int target_write_memory_blocks (VEC(memory_write_request_s
) *requests
,
1516 enum flash_preserve_mode preserve_flash_p
,
1517 void (*progress_cb
) (ULONGEST
, void *));
1519 /* Print a line about the current target. */
1521 #define target_files_info() \
1522 (*current_target.to_files_info) (¤t_target)
1524 /* Insert a breakpoint at address BP_TGT->placed_address in
1525 the target machine. Returns 0 for success, and returns non-zero or
1526 throws an error (with a detailed failure reason error code and
1527 message) otherwise. */
1529 extern int target_insert_breakpoint (struct gdbarch
*gdbarch
,
1530 struct bp_target_info
*bp_tgt
);
1532 /* Remove a breakpoint at address BP_TGT->placed_address in the target
1533 machine. Result is 0 for success, non-zero for error. */
1535 extern int target_remove_breakpoint (struct gdbarch
*gdbarch
,
1536 struct bp_target_info
*bp_tgt
,
1537 enum remove_bp_reason reason
);
1539 /* Return true if the target stack has a non-default
1540 "to_terminal_ours" method. */
1542 extern int target_supports_terminal_ours (void);
1544 /* Kill the inferior process. Make it go away. */
1546 extern void target_kill (void);
1548 /* Load an executable file into the target process. This is expected
1549 to not only bring new code into the target process, but also to
1550 update GDB's symbol tables to match.
1552 ARG contains command-line arguments, to be broken down with
1553 buildargv (). The first non-switch argument is the filename to
1554 load, FILE; the second is a number (as parsed by strtoul (..., ...,
1555 0)), which is an offset to apply to the load addresses of FILE's
1556 sections. The target may define switches, or other non-switch
1557 arguments, as it pleases. */
1559 extern void target_load (const char *arg
, int from_tty
);
1561 /* Some targets (such as ttrace-based HPUX) don't allow us to request
1562 notification of inferior events such as fork and vork immediately
1563 after the inferior is created. (This because of how gdb gets an
1564 inferior created via invoking a shell to do it. In such a scenario,
1565 if the shell init file has commands in it, the shell will fork and
1566 exec for each of those commands, and we will see each such fork
1569 Such targets will supply an appropriate definition for this function. */
1571 #define target_post_startup_inferior(ptid) \
1572 (*current_target.to_post_startup_inferior) (¤t_target, ptid)
1574 /* On some targets, we can catch an inferior fork or vfork event when
1575 it occurs. These functions insert/remove an already-created
1576 catchpoint for such events. They return 0 for success, 1 if the
1577 catchpoint type is not supported and -1 for failure. */
1579 #define target_insert_fork_catchpoint(pid) \
1580 (*current_target.to_insert_fork_catchpoint) (¤t_target, pid)
1582 #define target_remove_fork_catchpoint(pid) \
1583 (*current_target.to_remove_fork_catchpoint) (¤t_target, pid)
1585 #define target_insert_vfork_catchpoint(pid) \
1586 (*current_target.to_insert_vfork_catchpoint) (¤t_target, pid)
1588 #define target_remove_vfork_catchpoint(pid) \
1589 (*current_target.to_remove_vfork_catchpoint) (¤t_target, pid)
1591 /* If the inferior forks or vforks, this function will be called at
1592 the next resume in order to perform any bookkeeping and fiddling
1593 necessary to continue debugging either the parent or child, as
1594 requested, and releasing the other. Information about the fork
1595 or vfork event is available via get_last_target_status ().
1596 This function returns 1 if the inferior should not be resumed
1597 (i.e. there is another event pending). */
1599 int target_follow_fork (int follow_child
, int detach_fork
);
1601 /* Handle the target-specific bookkeeping required when the inferior
1602 makes an exec call. INF is the exec'd inferior. */
1604 void target_follow_exec (struct inferior
*inf
, char *execd_pathname
);
1606 /* On some targets, we can catch an inferior exec event when it
1607 occurs. These functions insert/remove an already-created
1608 catchpoint for such events. They return 0 for success, 1 if the
1609 catchpoint type is not supported and -1 for failure. */
1611 #define target_insert_exec_catchpoint(pid) \
1612 (*current_target.to_insert_exec_catchpoint) (¤t_target, pid)
1614 #define target_remove_exec_catchpoint(pid) \
1615 (*current_target.to_remove_exec_catchpoint) (¤t_target, pid)
1619 NEEDED is nonzero if any syscall catch (of any kind) is requested.
1620 If NEEDED is zero, it means the target can disable the mechanism to
1621 catch system calls because there are no more catchpoints of this type.
1623 ANY_COUNT is nonzero if a generic (filter-less) syscall catch is
1624 being requested. In this case, both TABLE_SIZE and TABLE should
1627 TABLE_SIZE is the number of elements in TABLE. It only matters if
1630 TABLE is an array of ints, indexed by syscall number. An element in
1631 this array is nonzero if that syscall should be caught. This argument
1632 only matters if ANY_COUNT is zero.
1634 Return 0 for success, 1 if syscall catchpoints are not supported or -1
1637 #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \
1638 (*current_target.to_set_syscall_catchpoint) (¤t_target, \
1639 pid, needed, any_count, \
1642 /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
1643 exit code of PID, if any. */
1645 #define target_has_exited(pid,wait_status,exit_status) \
1646 (*current_target.to_has_exited) (¤t_target, \
1647 pid,wait_status,exit_status)
1649 /* The debugger has completed a blocking wait() call. There is now
1650 some process event that must be processed. This function should
1651 be defined by those targets that require the debugger to perform
1652 cleanup or internal state changes in response to the process event. */
1654 /* For target_mourn_inferior see target/target.h. */
1656 /* Does target have enough data to do a run or attach command? */
1658 #define target_can_run(t) \
1659 ((t)->to_can_run) (t)
1661 /* Set list of signals to be handled in the target.
1663 PASS_SIGNALS is an array of size NSIG, indexed by target signal number
1664 (enum gdb_signal). For every signal whose entry in this array is
1665 non-zero, the target is allowed -but not required- to skip reporting
1666 arrival of the signal to the GDB core by returning from target_wait,
1667 and to pass the signal directly to the inferior instead.
1669 However, if the target is hardware single-stepping a thread that is
1670 about to receive a signal, it needs to be reported in any case, even
1671 if mentioned in a previous target_pass_signals call. */
1673 extern void target_pass_signals (int nsig
, unsigned char *pass_signals
);
1675 /* Set list of signals the target may pass to the inferior. This
1676 directly maps to the "handle SIGNAL pass/nopass" setting.
1678 PROGRAM_SIGNALS is an array of size NSIG, indexed by target signal
1679 number (enum gdb_signal). For every signal whose entry in this
1680 array is non-zero, the target is allowed to pass the signal to the
1681 inferior. Signals not present in the array shall be silently
1682 discarded. This does not influence whether to pass signals to the
1683 inferior as a result of a target_resume call. This is useful in
1684 scenarios where the target needs to decide whether to pass or not a
1685 signal to the inferior without GDB core involvement, such as for
1686 example, when detaching (as threads may have been suspended with
1687 pending signals not reported to GDB). */
1689 extern void target_program_signals (int nsig
, unsigned char *program_signals
);
1691 /* Check to see if a thread is still alive. */
1693 extern int target_thread_alive (ptid_t ptid
);
1695 /* Sync the target's threads with GDB's thread list. */
1697 extern void target_update_thread_list (void);
1699 /* Make target stop in a continuable fashion. (For instance, under
1700 Unix, this should act like SIGSTOP). Note that this function is
1701 asynchronous: it does not wait for the target to become stopped
1702 before returning. If this is the behavior you want please use
1703 target_stop_and_wait. */
1705 extern void target_stop (ptid_t ptid
);
1707 /* Interrupt the target just like the user typed a ^C on the
1708 inferior's controlling terminal. (For instance, under Unix, this
1709 should act like SIGINT). This function is asynchronous. */
1711 extern void target_interrupt (ptid_t ptid
);
1713 /* Pass a ^C, as determined to have been pressed by checking the quit
1714 flag, to the target. Normally calls target_interrupt, but remote
1715 targets may take the opportunity to detect the remote side is not
1716 responding and offer to disconnect. */
1718 extern void target_pass_ctrlc (void);
1720 /* The default target_ops::to_pass_ctrlc implementation. Simply calls
1721 target_interrupt. */
1722 extern void default_target_pass_ctrlc (struct target_ops
*ops
);
1724 /* Send the specified COMMAND to the target's monitor
1725 (shell,interpreter) for execution. The result of the query is
1726 placed in OUTBUF. */
1728 #define target_rcmd(command, outbuf) \
1729 (*current_target.to_rcmd) (¤t_target, command, outbuf)
1732 /* Does the target include all of memory, or only part of it? This
1733 determines whether we look up the target chain for other parts of
1734 memory if this target can't satisfy a request. */
1736 extern int target_has_all_memory_1 (void);
1737 #define target_has_all_memory target_has_all_memory_1 ()
1739 /* Does the target include memory? (Dummy targets don't.) */
1741 extern int target_has_memory_1 (void);
1742 #define target_has_memory target_has_memory_1 ()
1744 /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until
1745 we start a process.) */
1747 extern int target_has_stack_1 (void);
1748 #define target_has_stack target_has_stack_1 ()
1750 /* Does the target have registers? (Exec files don't.) */
1752 extern int target_has_registers_1 (void);
1753 #define target_has_registers target_has_registers_1 ()
1755 /* Does the target have execution? Can we make it jump (through
1756 hoops), or pop its stack a few times? This means that the current
1757 target is currently executing; for some targets, that's the same as
1758 whether or not the target is capable of execution, but there are
1759 also targets which can be current while not executing. In that
1760 case this will become true after to_create_inferior or
1763 extern int target_has_execution_1 (ptid_t
);
1765 /* Like target_has_execution_1, but always passes inferior_ptid. */
1767 extern int target_has_execution_current (void);
1769 #define target_has_execution target_has_execution_current ()
1771 /* Default implementations for process_stratum targets. Return true
1772 if there's a selected inferior, false otherwise. */
1774 extern int default_child_has_all_memory (struct target_ops
*ops
);
1775 extern int default_child_has_memory (struct target_ops
*ops
);
1776 extern int default_child_has_stack (struct target_ops
*ops
);
1777 extern int default_child_has_registers (struct target_ops
*ops
);
1778 extern int default_child_has_execution (struct target_ops
*ops
,
1781 /* Can the target support the debugger control of thread execution?
1782 Can it lock the thread scheduler? */
1784 #define target_can_lock_scheduler \
1785 (current_target.to_has_thread_control & tc_schedlock)
1787 /* Controls whether async mode is permitted. */
1788 extern int target_async_permitted
;
1790 /* Can the target support asynchronous execution? */
1791 #define target_can_async_p() (current_target.to_can_async_p (¤t_target))
1793 /* Is the target in asynchronous execution mode? */
1794 #define target_is_async_p() (current_target.to_is_async_p (¤t_target))
1796 /* Enables/disabled async target events. */
1797 extern void target_async (int enable
);
1799 /* Enables/disables thread create and exit events. */
1800 extern void target_thread_events (int enable
);
1802 /* Whether support for controlling the target backends always in
1803 non-stop mode is enabled. */
1804 extern enum auto_boolean target_non_stop_enabled
;
1806 /* Is the target in non-stop mode? Some targets control the inferior
1807 in non-stop mode even with "set non-stop off". Always true if "set
1809 extern int target_is_non_stop_p (void);
1811 #define target_execution_direction() \
1812 (current_target.to_execution_direction (¤t_target))
1814 /* Converts a process id to a string. Usually, the string just contains
1815 `process xyz', but on some systems it may contain
1816 `process xyz thread abc'. */
1818 extern const char *target_pid_to_str (ptid_t ptid
);
1820 extern const char *normal_pid_to_str (ptid_t ptid
);
1822 /* Return a short string describing extra information about PID,
1823 e.g. "sleeping", "runnable", "running on LWP 3". Null return value
1826 #define target_extra_thread_info(TP) \
1827 (current_target.to_extra_thread_info (¤t_target, TP))
1829 /* Return the thread's name, or NULL if the target is unable to determine it.
1830 The returned value must not be freed by the caller. */
1832 extern const char *target_thread_name (struct thread_info
*);
1834 /* Given a pointer to a thread library specific thread handle and
1835 its length, return a pointer to the corresponding thread_info struct. */
1837 extern struct thread_info
*target_thread_handle_to_thread_info
1838 (const gdb_byte
*thread_handle
, int handle_len
, struct inferior
*inf
);
1840 /* Attempts to find the pathname of the executable file
1841 that was run to create a specified process.
1843 The process PID must be stopped when this operation is used.
1845 If the executable file cannot be determined, NULL is returned.
1847 Else, a pointer to a character string containing the pathname
1848 is returned. This string should be copied into a buffer by
1849 the client if the string will not be immediately used, or if
1852 #define target_pid_to_exec_file(pid) \
1853 (current_target.to_pid_to_exec_file) (¤t_target, pid)
1855 /* See the to_thread_architecture description in struct target_ops. */
1857 #define target_thread_architecture(ptid) \
1858 (current_target.to_thread_architecture (¤t_target, ptid))
1861 * Iterator function for target memory regions.
1862 * Calls a callback function once for each memory region 'mapped'
1863 * in the child process. Defined as a simple macro rather than
1864 * as a function macro so that it can be tested for nullity.
1867 #define target_find_memory_regions(FUNC, DATA) \
1868 (current_target.to_find_memory_regions) (¤t_target, FUNC, DATA)
1871 * Compose corefile .note section.
1874 #define target_make_corefile_notes(BFD, SIZE_P) \
1875 (current_target.to_make_corefile_notes) (¤t_target, BFD, SIZE_P)
1877 /* Bookmark interfaces. */
1878 #define target_get_bookmark(ARGS, FROM_TTY) \
1879 (current_target.to_get_bookmark) (¤t_target, ARGS, FROM_TTY)
1881 #define target_goto_bookmark(ARG, FROM_TTY) \
1882 (current_target.to_goto_bookmark) (¤t_target, ARG, FROM_TTY)
1884 /* Hardware watchpoint interfaces. */
1886 /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or
1887 write). Only the INFERIOR_PTID task is being queried. */
1889 #define target_stopped_by_watchpoint() \
1890 ((*current_target.to_stopped_by_watchpoint) (¤t_target))
1892 /* Returns non-zero if the target stopped because it executed a
1893 software breakpoint instruction. */
1895 #define target_stopped_by_sw_breakpoint() \
1896 ((*current_target.to_stopped_by_sw_breakpoint) (¤t_target))
1898 #define target_supports_stopped_by_sw_breakpoint() \
1899 ((*current_target.to_supports_stopped_by_sw_breakpoint) (¤t_target))
1901 #define target_stopped_by_hw_breakpoint() \
1902 ((*current_target.to_stopped_by_hw_breakpoint) (¤t_target))
1904 #define target_supports_stopped_by_hw_breakpoint() \
1905 ((*current_target.to_supports_stopped_by_hw_breakpoint) (¤t_target))
1907 /* Non-zero if we have steppable watchpoints */
1909 #define target_have_steppable_watchpoint \
1910 (current_target.to_have_steppable_watchpoint)
1912 /* Non-zero if we have continuable watchpoints */
1914 #define target_have_continuable_watchpoint \
1915 (current_target.to_have_continuable_watchpoint)
1917 /* Provide defaults for hardware watchpoint functions. */
1919 /* If the *_hw_beakpoint functions have not been defined
1920 elsewhere use the definitions in the target vector. */
1922 /* Returns positive if we can set a hardware watchpoint of type TYPE.
1923 Returns negative if the target doesn't have enough hardware debug
1924 registers available. Return zero if hardware watchpoint of type
1925 TYPE isn't supported. TYPE is one of bp_hardware_watchpoint,
1926 bp_read_watchpoint, bp_write_watchpoint, or bp_hardware_breakpoint.
1927 CNT is the number of such watchpoints used so far, including this
1928 one. OTHERTYPE is the number of watchpoints of other types than
1929 this one used so far. */
1931 #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \
1932 (*current_target.to_can_use_hw_breakpoint) (¤t_target, \
1933 TYPE, CNT, OTHERTYPE)
1935 /* Returns the number of debug registers needed to watch the given
1936 memory region, or zero if not supported. */
1938 #define target_region_ok_for_hw_watchpoint(addr, len) \
1939 (*current_target.to_region_ok_for_hw_watchpoint) (¤t_target, \
1943 #define target_can_do_single_step() \
1944 (*current_target.to_can_do_single_step) (¤t_target)
1946 /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes.
1947 TYPE is 0 for write, 1 for read, and 2 for read/write accesses.
1948 COND is the expression for its condition, or NULL if there's none.
1949 Returns 0 for success, 1 if the watchpoint type is not supported,
1952 #define target_insert_watchpoint(addr, len, type, cond) \
1953 (*current_target.to_insert_watchpoint) (¤t_target, \
1954 addr, len, type, cond)
1956 #define target_remove_watchpoint(addr, len, type, cond) \
1957 (*current_target.to_remove_watchpoint) (¤t_target, \
1958 addr, len, type, cond)
1960 /* Insert a new masked watchpoint at ADDR using the mask MASK.
1961 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1962 or hw_access for an access watchpoint. Returns 0 for success, 1 if
1963 masked watchpoints are not supported, -1 for failure. */
1965 extern int target_insert_mask_watchpoint (CORE_ADDR
, CORE_ADDR
,
1966 enum target_hw_bp_type
);
1968 /* Remove a masked watchpoint at ADDR with the mask MASK.
1969 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1970 or hw_access for an access watchpoint. Returns 0 for success, non-zero
1973 extern int target_remove_mask_watchpoint (CORE_ADDR
, CORE_ADDR
,
1974 enum target_hw_bp_type
);
1976 /* Insert a hardware breakpoint at address BP_TGT->placed_address in
1977 the target machine. Returns 0 for success, and returns non-zero or
1978 throws an error (with a detailed failure reason error code and
1979 message) otherwise. */
1981 #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
1982 (*current_target.to_insert_hw_breakpoint) (¤t_target, \
1985 #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
1986 (*current_target.to_remove_hw_breakpoint) (¤t_target, \
1989 /* Return number of debug registers needed for a ranged breakpoint,
1990 or -1 if ranged breakpoints are not supported. */
1992 extern int target_ranged_break_num_registers (void);
1994 /* Return non-zero if target knows the data address which triggered this
1995 target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the
1996 INFERIOR_PTID task is being queried. */
1997 #define target_stopped_data_address(target, addr_p) \
1998 (*(target)->to_stopped_data_address) (target, addr_p)
2000 /* Return non-zero if ADDR is within the range of a watchpoint spanning
2001 LENGTH bytes beginning at START. */
2002 #define target_watchpoint_addr_within_range(target, addr, start, length) \
2003 (*(target)->to_watchpoint_addr_within_range) (target, addr, start, length)
2005 /* Return non-zero if the target is capable of using hardware to evaluate
2006 the condition expression. In this case, if the condition is false when
2007 the watched memory location changes, execution may continue without the
2008 debugger being notified.
2010 Due to limitations in the hardware implementation, it may be capable of
2011 avoiding triggering the watchpoint in some cases where the condition
2012 expression is false, but may report some false positives as well.
2013 For this reason, GDB will still evaluate the condition expression when
2014 the watchpoint triggers. */
2015 #define target_can_accel_watchpoint_condition(addr, len, type, cond) \
2016 (*current_target.to_can_accel_watchpoint_condition) (¤t_target, \
2017 addr, len, type, cond)
2019 /* Return number of debug registers needed for a masked watchpoint,
2020 -1 if masked watchpoints are not supported or -2 if the given address
2021 and mask combination cannot be used. */
2023 extern int target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
);
2025 /* Target can execute in reverse? */
2026 #define target_can_execute_reverse \
2027 current_target.to_can_execute_reverse (¤t_target)
2029 extern const struct target_desc
*target_read_description (struct target_ops
*);
2031 #define target_get_ada_task_ptid(lwp, tid) \
2032 (*current_target.to_get_ada_task_ptid) (¤t_target, lwp,tid)
2034 /* Utility implementation of searching memory. */
2035 extern int simple_search_memory (struct target_ops
* ops
,
2036 CORE_ADDR start_addr
,
2037 ULONGEST search_space_len
,
2038 const gdb_byte
*pattern
,
2039 ULONGEST pattern_len
,
2040 CORE_ADDR
*found_addrp
);
2042 /* Main entry point for searching memory. */
2043 extern int target_search_memory (CORE_ADDR start_addr
,
2044 ULONGEST search_space_len
,
2045 const gdb_byte
*pattern
,
2046 ULONGEST pattern_len
,
2047 CORE_ADDR
*found_addrp
);
2049 /* Target file operations. */
2051 /* Return nonzero if the filesystem seen by the current inferior
2052 is the local filesystem, zero otherwise. */
2053 #define target_filesystem_is_local() \
2054 current_target.to_filesystem_is_local (¤t_target)
2056 /* Open FILENAME on the target, in the filesystem as seen by INF,
2057 using FLAGS and MODE. If INF is NULL, use the filesystem seen
2058 by the debugger (GDB or, for remote targets, the remote stub).
2059 Return a target file descriptor, or -1 if an error occurs (and
2060 set *TARGET_ERRNO). */
2061 extern int target_fileio_open (struct inferior
*inf
,
2062 const char *filename
, int flags
,
2063 int mode
, int *target_errno
);
2065 /* Like target_fileio_open, but print a warning message if the
2066 file is being accessed over a link that may be slow. */
2067 extern int target_fileio_open_warn_if_slow (struct inferior
*inf
,
2068 const char *filename
,
2073 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
2074 Return the number of bytes written, or -1 if an error occurs
2075 (and set *TARGET_ERRNO). */
2076 extern int target_fileio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
2077 ULONGEST offset
, int *target_errno
);
2079 /* Read up to LEN bytes FD on the target into READ_BUF.
2080 Return the number of bytes read, or -1 if an error occurs
2081 (and set *TARGET_ERRNO). */
2082 extern int target_fileio_pread (int fd
, gdb_byte
*read_buf
, int len
,
2083 ULONGEST offset
, int *target_errno
);
2085 /* Get information about the file opened as FD on the target
2086 and put it in SB. Return 0 on success, or -1 if an error
2087 occurs (and set *TARGET_ERRNO). */
2088 extern int target_fileio_fstat (int fd
, struct stat
*sb
,
2091 /* Close FD on the target. Return 0, or -1 if an error occurs
2092 (and set *TARGET_ERRNO). */
2093 extern int target_fileio_close (int fd
, int *target_errno
);
2095 /* Unlink FILENAME on the target, in the filesystem as seen by INF.
2096 If INF is NULL, use the filesystem seen by the debugger (GDB or,
2097 for remote targets, the remote stub). Return 0, or -1 if an error
2098 occurs (and set *TARGET_ERRNO). */
2099 extern int target_fileio_unlink (struct inferior
*inf
,
2100 const char *filename
,
2103 /* Read value of symbolic link FILENAME on the target, in the
2104 filesystem as seen by INF. If INF is NULL, use the filesystem seen
2105 by the debugger (GDB or, for remote targets, the remote stub).
2106 Return a null-terminated string allocated via xmalloc, or NULL if
2107 an error occurs (and set *TARGET_ERRNO). */
2108 extern char *target_fileio_readlink (struct inferior
*inf
,
2109 const char *filename
,
2112 /* Read target file FILENAME, in the filesystem as seen by INF. If
2113 INF is NULL, use the filesystem seen by the debugger (GDB or, for
2114 remote targets, the remote stub). The return value will be -1 if
2115 the transfer fails or is not supported; 0 if the object is empty;
2116 or the length of the object otherwise. If a positive value is
2117 returned, a sufficiently large buffer will be allocated using
2118 xmalloc and returned in *BUF_P containing the contents of the
2121 This method should be used for objects sufficiently small to store
2122 in a single xmalloc'd buffer, when no fixed bound on the object's
2123 size is known in advance. */
2124 extern LONGEST
target_fileio_read_alloc (struct inferior
*inf
,
2125 const char *filename
,
2128 /* Read target file FILENAME, in the filesystem as seen by INF. If
2129 INF is NULL, use the filesystem seen by the debugger (GDB or, for
2130 remote targets, the remote stub). The result is NUL-terminated and
2131 returned as a string, allocated using xmalloc. If an error occurs
2132 or the transfer is unsupported, NULL is returned. Empty objects
2133 are returned as allocated but empty strings. A warning is issued
2134 if the result contains any embedded NUL bytes. */
2135 extern char *target_fileio_read_stralloc (struct inferior
*inf
,
2136 const char *filename
);
2139 /* Tracepoint-related operations. */
2141 #define target_trace_init() \
2142 (*current_target.to_trace_init) (¤t_target)
2144 #define target_download_tracepoint(t) \
2145 (*current_target.to_download_tracepoint) (¤t_target, t)
2147 #define target_can_download_tracepoint() \
2148 (*current_target.to_can_download_tracepoint) (¤t_target)
2150 #define target_download_trace_state_variable(tsv) \
2151 (*current_target.to_download_trace_state_variable) (¤t_target, tsv)
2153 #define target_enable_tracepoint(loc) \
2154 (*current_target.to_enable_tracepoint) (¤t_target, loc)
2156 #define target_disable_tracepoint(loc) \
2157 (*current_target.to_disable_tracepoint) (¤t_target, loc)
2159 #define target_trace_start() \
2160 (*current_target.to_trace_start) (¤t_target)
2162 #define target_trace_set_readonly_regions() \
2163 (*current_target.to_trace_set_readonly_regions) (¤t_target)
2165 #define target_get_trace_status(ts) \
2166 (*current_target.to_get_trace_status) (¤t_target, ts)
2168 #define target_get_tracepoint_status(tp,utp) \
2169 (*current_target.to_get_tracepoint_status) (¤t_target, tp, utp)
2171 #define target_trace_stop() \
2172 (*current_target.to_trace_stop) (¤t_target)
2174 #define target_trace_find(type,num,addr1,addr2,tpp) \
2175 (*current_target.to_trace_find) (¤t_target, \
2176 (type), (num), (addr1), (addr2), (tpp))
2178 #define target_get_trace_state_variable_value(tsv,val) \
2179 (*current_target.to_get_trace_state_variable_value) (¤t_target, \
2182 #define target_save_trace_data(filename) \
2183 (*current_target.to_save_trace_data) (¤t_target, filename)
2185 #define target_upload_tracepoints(utpp) \
2186 (*current_target.to_upload_tracepoints) (¤t_target, utpp)
2188 #define target_upload_trace_state_variables(utsvp) \
2189 (*current_target.to_upload_trace_state_variables) (¤t_target, utsvp)
2191 #define target_get_raw_trace_data(buf,offset,len) \
2192 (*current_target.to_get_raw_trace_data) (¤t_target, \
2193 (buf), (offset), (len))
2195 #define target_get_min_fast_tracepoint_insn_len() \
2196 (*current_target.to_get_min_fast_tracepoint_insn_len) (¤t_target)
2198 #define target_set_disconnected_tracing(val) \
2199 (*current_target.to_set_disconnected_tracing) (¤t_target, val)
2201 #define target_set_circular_trace_buffer(val) \
2202 (*current_target.to_set_circular_trace_buffer) (¤t_target, val)
2204 #define target_set_trace_buffer_size(val) \
2205 (*current_target.to_set_trace_buffer_size) (¤t_target, val)
2207 #define target_set_trace_notes(user,notes,stopnotes) \
2208 (*current_target.to_set_trace_notes) (¤t_target, \
2209 (user), (notes), (stopnotes))
2211 #define target_get_tib_address(ptid, addr) \
2212 (*current_target.to_get_tib_address) (¤t_target, (ptid), (addr))
2214 #define target_set_permissions() \
2215 (*current_target.to_set_permissions) (¤t_target)
2217 #define target_static_tracepoint_marker_at(addr, marker) \
2218 (*current_target.to_static_tracepoint_marker_at) (¤t_target, \
2221 #define target_static_tracepoint_markers_by_strid(marker_id) \
2222 (*current_target.to_static_tracepoint_markers_by_strid) (¤t_target, \
2225 #define target_traceframe_info() \
2226 (*current_target.to_traceframe_info) (¤t_target)
2228 #define target_use_agent(use) \
2229 (*current_target.to_use_agent) (¤t_target, use)
2231 #define target_can_use_agent() \
2232 (*current_target.to_can_use_agent) (¤t_target)
2234 #define target_augmented_libraries_svr4_read() \
2235 (*current_target.to_augmented_libraries_svr4_read) (¤t_target)
2237 /* Command logging facility. */
2239 #define target_log_command(p) \
2240 (*current_target.to_log_command) (¤t_target, p)
2243 extern int target_core_of_thread (ptid_t ptid
);
2245 /* See to_get_unwinder in struct target_ops. */
2246 extern const struct frame_unwind
*target_get_unwinder (void);
2248 /* See to_get_tailcall_unwinder in struct target_ops. */
2249 extern const struct frame_unwind
*target_get_tailcall_unwinder (void);
2251 /* This implements basic memory verification, reading target memory
2252 and performing the comparison here (as opposed to accelerated
2253 verification making use of the qCRC packet, for example). */
2255 extern int simple_verify_memory (struct target_ops
* ops
,
2256 const gdb_byte
*data
,
2257 CORE_ADDR memaddr
, ULONGEST size
);
2259 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches
2260 the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0
2261 if there's a mismatch, and -1 if an error is encountered while
2262 reading memory. Throws an error if the functionality is found not
2263 to be supported by the current target. */
2264 int target_verify_memory (const gdb_byte
*data
,
2265 CORE_ADDR memaddr
, ULONGEST size
);
2267 /* Routines for maintenance of the target structures...
2269 complete_target_initialization: Finalize a target_ops by filling in
2270 any fields needed by the target implementation. Unnecessary for
2271 targets which are registered via add_target, as this part gets
2274 add_target: Add a target to the list of all possible targets.
2275 This only makes sense for targets that should be activated using
2276 the "target TARGET_NAME ..." command.
2278 push_target: Make this target the top of the stack of currently used
2279 targets, within its particular stratum of the stack. Result
2280 is 0 if now atop the stack, nonzero if not on top (maybe
2283 unpush_target: Remove this from the stack of currently used targets,
2284 no matter where it is on the list. Returns 0 if no
2285 change, 1 if removed from stack. */
2287 extern void add_target (struct target_ops
*);
2289 extern void add_target_with_completer (struct target_ops
*t
,
2290 completer_ftype
*completer
);
2292 extern void complete_target_initialization (struct target_ops
*t
);
2294 /* Adds a command ALIAS for target T and marks it deprecated. This is useful
2295 for maintaining backwards compatibility when renaming targets. */
2297 extern void add_deprecated_target_alias (struct target_ops
*t
,
2300 extern void push_target (struct target_ops
*);
2302 extern int unpush_target (struct target_ops
*);
2304 extern void target_pre_inferior (int);
2306 extern void target_preopen (int);
2308 /* Does whatever cleanup is required to get rid of all pushed targets. */
2309 extern void pop_all_targets (void);
2311 /* Like pop_all_targets, but pops only targets whose stratum is at or
2313 extern void pop_all_targets_at_and_above (enum strata stratum
);
2315 /* Like pop_all_targets, but pops only targets whose stratum is
2316 strictly above ABOVE_STRATUM. */
2317 extern void pop_all_targets_above (enum strata above_stratum
);
2319 extern int target_is_pushed (struct target_ops
*t
);
2321 extern CORE_ADDR
target_translate_tls_address (struct objfile
*objfile
,
2324 /* Struct target_section maps address ranges to file sections. It is
2325 mostly used with BFD files, but can be used without (e.g. for handling
2326 raw disks, or files not in formats handled by BFD). */
2328 struct target_section
2330 CORE_ADDR addr
; /* Lowest address in section */
2331 CORE_ADDR endaddr
; /* 1+highest address in section */
2333 struct bfd_section
*the_bfd_section
;
2335 /* The "owner" of the section.
2336 It can be any unique value. It is set by add_target_sections
2337 and used by remove_target_sections.
2338 For example, for executables it is a pointer to exec_bfd and
2339 for shlibs it is the so_list pointer. */
2343 /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */
2345 struct target_section_table
2347 struct target_section
*sections
;
2348 struct target_section
*sections_end
;
2351 /* Return the "section" containing the specified address. */
2352 struct target_section
*target_section_by_addr (struct target_ops
*target
,
2355 /* Return the target section table this target (or the targets
2356 beneath) currently manipulate. */
2358 extern struct target_section_table
*target_get_section_table
2359 (struct target_ops
*target
);
2361 /* From mem-break.c */
2363 extern int memory_remove_breakpoint (struct target_ops
*, struct gdbarch
*,
2364 struct bp_target_info
*,
2365 enum remove_bp_reason
);
2367 extern int memory_insert_breakpoint (struct target_ops
*, struct gdbarch
*,
2368 struct bp_target_info
*);
2370 /* Check whether the memory at the breakpoint's placed address still
2371 contains the expected breakpoint instruction. */
2373 extern int memory_validate_breakpoint (struct gdbarch
*gdbarch
,
2374 struct bp_target_info
*bp_tgt
);
2376 extern int default_memory_remove_breakpoint (struct gdbarch
*,
2377 struct bp_target_info
*);
2379 extern int default_memory_insert_breakpoint (struct gdbarch
*,
2380 struct bp_target_info
*);
2385 extern void initialize_targets (void);
2387 extern void noprocess (void) ATTRIBUTE_NORETURN
;
2389 extern void target_require_runnable (void);
2391 extern struct target_ops
*find_target_beneath (struct target_ops
*);
2393 /* Find the target at STRATUM. If no target is at that stratum,
2396 struct target_ops
*find_target_at (enum strata stratum
);
2398 /* Read OS data object of type TYPE from the target, and return it in
2399 XML format. The result is NUL-terminated and returned as a string,
2400 allocated using xmalloc. If an error occurs or the transfer is
2401 unsupported, NULL is returned. Empty objects are returned as
2402 allocated but empty strings. */
2404 extern char *target_get_osdata (const char *type
);
2407 /* Stuff that should be shared among the various remote targets. */
2409 /* Debugging level. 0 is off, and non-zero values mean to print some debug
2410 information (higher values, more information). */
2411 extern int remote_debug
;
2413 /* Speed in bits per second, or -1 which means don't mess with the speed. */
2414 extern int baud_rate
;
2416 /* Parity for serial port */
2417 extern int serial_parity
;
2419 /* Timeout limit for response from target. */
2420 extern int remote_timeout
;
2424 /* Set the show memory breakpoints mode to show, and return a
2425 scoped_restore to restore it back to the current value. */
2426 extern scoped_restore_tmpl
<int>
2427 make_scoped_restore_show_memory_breakpoints (int show
);
2429 extern int may_write_registers
;
2430 extern int may_write_memory
;
2431 extern int may_insert_breakpoints
;
2432 extern int may_insert_tracepoints
;
2433 extern int may_insert_fast_tracepoints
;
2434 extern int may_stop
;
2436 extern void update_target_permissions (void);
2439 /* Imported from machine dependent code. */
2441 /* See to_supports_btrace in struct target_ops. */
2442 extern int target_supports_btrace (enum btrace_format
);
2444 /* See to_enable_btrace in struct target_ops. */
2445 extern struct btrace_target_info
*
2446 target_enable_btrace (ptid_t ptid
, const struct btrace_config
*);
2448 /* See to_disable_btrace in struct target_ops. */
2449 extern void target_disable_btrace (struct btrace_target_info
*btinfo
);
2451 /* See to_teardown_btrace in struct target_ops. */
2452 extern void target_teardown_btrace (struct btrace_target_info
*btinfo
);
2454 /* See to_read_btrace in struct target_ops. */
2455 extern enum btrace_error
target_read_btrace (struct btrace_data
*,
2456 struct btrace_target_info
*,
2457 enum btrace_read_type
);
2459 /* See to_btrace_conf in struct target_ops. */
2460 extern const struct btrace_config
*
2461 target_btrace_conf (const struct btrace_target_info
*);
2463 /* See to_stop_recording in struct target_ops. */
2464 extern void target_stop_recording (void);
2466 /* See to_save_record in struct target_ops. */
2467 extern void target_save_record (const char *filename
);
2469 /* Query if the target supports deleting the execution log. */
2470 extern int target_supports_delete_record (void);
2472 /* See to_delete_record in struct target_ops. */
2473 extern void target_delete_record (void);
2475 /* See to_record_method. */
2476 extern enum record_method
target_record_method (ptid_t ptid
);
2478 /* See to_record_is_replaying in struct target_ops. */
2479 extern int target_record_is_replaying (ptid_t ptid
);
2481 /* See to_record_will_replay in struct target_ops. */
2482 extern int target_record_will_replay (ptid_t ptid
, int dir
);
2484 /* See to_record_stop_replaying in struct target_ops. */
2485 extern void target_record_stop_replaying (void);
2487 /* See to_goto_record_begin in struct target_ops. */
2488 extern void target_goto_record_begin (void);
2490 /* See to_goto_record_end in struct target_ops. */
2491 extern void target_goto_record_end (void);
2493 /* See to_goto_record in struct target_ops. */
2494 extern void target_goto_record (ULONGEST insn
);
2496 /* See to_insn_history. */
2497 extern void target_insn_history (int size
, gdb_disassembly_flags flags
);
2499 /* See to_insn_history_from. */
2500 extern void target_insn_history_from (ULONGEST from
, int size
,
2501 gdb_disassembly_flags flags
);
2503 /* See to_insn_history_range. */
2504 extern void target_insn_history_range (ULONGEST begin
, ULONGEST end
,
2505 gdb_disassembly_flags flags
);
2507 /* See to_call_history. */
2508 extern void target_call_history (int size
, int flags
);
2510 /* See to_call_history_from. */
2511 extern void target_call_history_from (ULONGEST begin
, int size
, int flags
);
2513 /* See to_call_history_range. */
2514 extern void target_call_history_range (ULONGEST begin
, ULONGEST end
, int flags
);
2516 /* See to_prepare_to_generate_core. */
2517 extern void target_prepare_to_generate_core (void);
2519 /* See to_done_generating_core. */
2520 extern void target_done_generating_core (void);
2522 #endif /* !defined (TARGET_H) */