1 /* Interface between GDB and target environments, including files and processes
3 Copyright (C) 1990-2013 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
;
41 /* This include file defines the interface between the main part
42 of the debugger, and the part which is target-specific, or
43 specific to the communications interface between us and the
46 A TARGET is an interface between the debugger and a particular
47 kind of file or process. Targets can be STACKED in STRATA,
48 so that more than one target can potentially respond to a request.
49 In particular, memory accesses will walk down the stack of targets
50 until they find a target that is interested in handling that particular
51 address. STRATA are artificial boundaries on the stack, within
52 which particular kinds of targets live. Strata exist so that
53 people don't get confused by pushing e.g. a process target and then
54 a file target, and wondering why they can't see the current values
55 of variables any more (the file target is handling them and they
56 never get to the process target). So when you push a file target,
57 it goes into the file stratum, which is always below the process
60 #include "target/resume.h"
61 #include "target/wait.h"
62 #include "target/waitstatus.h"
67 #include "gdb_signals.h"
73 dummy_stratum
, /* The lowest of the low */
74 file_stratum
, /* Executable files, etc */
75 process_stratum
, /* Executing processes or core dump files */
76 thread_stratum
, /* Executing threads */
77 record_stratum
, /* Support record debugging */
78 arch_stratum
/* Architecture overrides */
81 enum thread_control_capabilities
83 tc_none
= 0, /* Default: can't control thread execution. */
84 tc_schedlock
= 1, /* Can lock the thread scheduler. */
87 /* The structure below stores information about a system call.
88 It is basically used in the "catch syscall" command, and in
89 every function that gives information about a system call.
91 It's also good to mention that its fields represent everything
92 that we currently know about a syscall in GDB. */
95 /* The syscall number. */
98 /* The syscall name. */
102 /* Return a pretty printed form of target_waitstatus.
103 Space for the result is malloc'd, caller must free. */
104 extern char *target_waitstatus_to_string (const struct target_waitstatus
*);
106 /* Return a pretty printed form of TARGET_OPTIONS.
107 Space for the result is malloc'd, caller must free. */
108 extern char *target_options_to_string (int target_options
);
110 /* Possible types of events that the inferior handler will have to
112 enum inferior_event_type
114 /* Process a normal inferior event which will result in target_wait
117 /* We are called because a timer went off. */
119 /* We are called to do stuff after the inferior stops. */
121 /* We are called to do some stuff after the inferior stops, but we
122 are expected to reenter the proceed() and
123 handle_inferior_event() functions. This is used only in case of
124 'step n' like commands. */
128 /* Target objects which can be transfered using target_read,
129 target_write, et cetera. */
133 /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */
135 /* SPU target specific transfer. See "spu-tdep.c". */
137 /* Transfer up-to LEN bytes of memory starting at OFFSET. */
138 TARGET_OBJECT_MEMORY
,
139 /* Memory, avoiding GDB's data cache and trusting the executable.
140 Target implementations of to_xfer_partial never need to handle
141 this object, and most callers should not use it. */
142 TARGET_OBJECT_RAW_MEMORY
,
143 /* Memory known to be part of the target's stack. This is cached even
144 if it is not in a region marked as such, since it is known to be
146 TARGET_OBJECT_STACK_MEMORY
,
147 /* Kernel Unwind Table. See "ia64-tdep.c". */
148 TARGET_OBJECT_UNWIND_TABLE
,
149 /* Transfer auxilliary vector. */
151 /* StackGhost cookie. See "sparc-tdep.c". */
152 TARGET_OBJECT_WCOOKIE
,
153 /* Target memory map in XML format. */
154 TARGET_OBJECT_MEMORY_MAP
,
155 /* Flash memory. This object can be used to write contents to
156 a previously erased flash memory. Using it without erasing
157 flash can have unexpected results. Addresses are physical
158 address on target, and not relative to flash start. */
160 /* Available target-specific features, e.g. registers and coprocessors.
161 See "target-descriptions.c". ANNEX should never be empty. */
162 TARGET_OBJECT_AVAILABLE_FEATURES
,
163 /* Currently loaded libraries, in XML format. */
164 TARGET_OBJECT_LIBRARIES
,
165 /* Currently loaded libraries specific for SVR4 systems, in XML format. */
166 TARGET_OBJECT_LIBRARIES_SVR4
,
167 /* Currently loaded libraries specific to AIX systems, in XML format. */
168 TARGET_OBJECT_LIBRARIES_AIX
,
169 /* Get OS specific data. The ANNEX specifies the type (running
170 processes, etc.). The data being transfered is expected to follow
171 the DTD specified in features/osdata.dtd. */
172 TARGET_OBJECT_OSDATA
,
173 /* Extra signal info. Usually the contents of `siginfo_t' on unix
175 TARGET_OBJECT_SIGNAL_INFO
,
176 /* The list of threads that are being debugged. */
177 TARGET_OBJECT_THREADS
,
178 /* Collected static trace data. */
179 TARGET_OBJECT_STATIC_TRACE_DATA
,
180 /* The HP-UX registers (those that can be obtained or modified by using
181 the TT_LWP_RUREGS/TT_LWP_WUREGS ttrace requests). */
182 TARGET_OBJECT_HPUX_UREGS
,
183 /* The HP-UX shared library linkage pointer. ANNEX should be a string
184 image of the code address whose linkage pointer we are looking for.
186 The size of the data transfered is always 8 bytes (the size of an
188 TARGET_OBJECT_HPUX_SOLIB_GOT
,
189 /* Traceframe info, in XML format. */
190 TARGET_OBJECT_TRACEFRAME_INFO
,
191 /* Load maps for FDPIC systems. */
193 /* Darwin dynamic linker info data. */
194 TARGET_OBJECT_DARWIN_DYLD_INFO
,
195 /* OpenVMS Unwind Information Block. */
196 TARGET_OBJECT_OPENVMS_UIB
,
197 /* Branch trace data, in XML format. */
199 /* Possible future objects: TARGET_OBJECT_FILE, ... */
202 /* Possible error codes returned by target_xfer_partial, etc. */
204 enum target_xfer_error
206 /* Generic I/O error. Note that it's important that this is '-1',
207 as we still have target_xfer-related code returning hardcoded
209 TARGET_XFER_E_IO
= -1,
211 /* Transfer failed because the piece of the object requested is
213 TARGET_XFER_E_UNAVAILABLE
= -2,
215 /* Keep list in sync with target_xfer_error_to_string. */
218 /* Return the string form of ERR. */
220 extern const char *target_xfer_error_to_string (enum target_xfer_error err
);
222 /* Enumeration of the kinds of traceframe searches that a target may
223 be able to perform. */
234 typedef struct static_tracepoint_marker
*static_tracepoint_marker_p
;
235 DEF_VEC_P(static_tracepoint_marker_p
);
237 /* Request that OPS transfer up to LEN 8-bit bytes of the target's
238 OBJECT. The OFFSET, for a seekable object, specifies the
239 starting point. The ANNEX can be used to provide additional
240 data-specific information to the target.
242 Return the number of bytes actually transfered, or a negative error
243 code (an 'enum target_xfer_error' value) if the transfer is not
244 supported or otherwise fails. Return of a positive value less than
245 LEN indicates that no further transfer is possible. Unlike the raw
246 to_xfer_partial interface, callers of these functions do not need
247 to retry partial transfers. */
249 extern LONGEST
target_read (struct target_ops
*ops
,
250 enum target_object object
,
251 const char *annex
, gdb_byte
*buf
,
252 ULONGEST offset
, LONGEST len
);
254 struct memory_read_result
256 /* First address that was read. */
258 /* Past-the-end address. */
263 typedef struct memory_read_result memory_read_result_s
;
264 DEF_VEC_O(memory_read_result_s
);
266 extern void free_memory_read_result_vector (void *);
268 extern VEC(memory_read_result_s
)* read_memory_robust (struct target_ops
*ops
,
272 extern LONGEST
target_write (struct target_ops
*ops
,
273 enum target_object object
,
274 const char *annex
, const gdb_byte
*buf
,
275 ULONGEST offset
, LONGEST len
);
277 /* Similar to target_write, except that it also calls PROGRESS with
278 the number of bytes written and the opaque BATON after every
279 successful partial write (and before the first write). This is
280 useful for progress reporting and user interaction while writing
281 data. To abort the transfer, the progress callback can throw an
284 LONGEST
target_write_with_progress (struct target_ops
*ops
,
285 enum target_object object
,
286 const char *annex
, const gdb_byte
*buf
,
287 ULONGEST offset
, LONGEST len
,
288 void (*progress
) (ULONGEST
, void *),
291 /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will
292 be read using OPS. The return value will be -1 if the transfer
293 fails or is not supported; 0 if the object is empty; or the length
294 of the object otherwise. If a positive value is returned, a
295 sufficiently large buffer will be allocated using xmalloc and
296 returned in *BUF_P containing the contents of the object.
298 This method should be used for objects sufficiently small to store
299 in a single xmalloc'd buffer, when no fixed bound on the object's
300 size is known in advance. Don't try to read TARGET_OBJECT_MEMORY
301 through this function. */
303 extern LONGEST
target_read_alloc (struct target_ops
*ops
,
304 enum target_object object
,
305 const char *annex
, gdb_byte
**buf_p
);
307 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
308 returned as a string, allocated using xmalloc. If an error occurs
309 or the transfer is unsupported, NULL is returned. Empty objects
310 are returned as allocated but empty strings. A warning is issued
311 if the result contains any embedded NUL bytes. */
313 extern char *target_read_stralloc (struct target_ops
*ops
,
314 enum target_object object
,
317 /* See target_ops->to_xfer_partial. */
319 extern LONGEST
target_xfer_partial (struct target_ops
*ops
,
320 enum target_object object
,
322 void *readbuf
, const void *writebuf
,
323 ULONGEST offset
, LONGEST len
);
325 /* Wrappers to target read/write that perform memory transfers. They
326 throw an error if the memory transfer fails.
328 NOTE: cagney/2003-10-23: The naming schema is lifted from
329 "frame.h". The parameter order is lifted from get_frame_memory,
330 which in turn lifted it from read_memory. */
332 extern void get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
,
333 gdb_byte
*buf
, LONGEST len
);
334 extern ULONGEST
get_target_memory_unsigned (struct target_ops
*ops
,
335 CORE_ADDR addr
, int len
,
336 enum bfd_endian byte_order
);
338 struct thread_info
; /* fwd decl for parameter list below: */
342 struct target_ops
*beneath
; /* To the target under this one. */
343 char *to_shortname
; /* Name this target type */
344 char *to_longname
; /* Name for printing */
345 char *to_doc
; /* Documentation. Does not include trailing
346 newline, and starts with a one-line descrip-
347 tion (probably similar to to_longname). */
348 /* Per-target scratch pad. */
350 /* The open routine takes the rest of the parameters from the
351 command, and (if successful) pushes a new target onto the
352 stack. Targets should supply this routine, if only to provide
354 void (*to_open
) (char *, int);
355 /* Old targets with a static target vector provide "to_close".
356 New re-entrant targets provide "to_xclose" and that is expected
357 to xfree everything (including the "struct target_ops"). */
358 void (*to_xclose
) (struct target_ops
*targ
);
359 void (*to_close
) (void);
360 void (*to_attach
) (struct target_ops
*ops
, char *, int);
361 void (*to_post_attach
) (int);
362 void (*to_detach
) (struct target_ops
*ops
, char *, int);
363 void (*to_disconnect
) (struct target_ops
*, char *, int);
364 void (*to_resume
) (struct target_ops
*, ptid_t
, int, enum gdb_signal
);
365 ptid_t (*to_wait
) (struct target_ops
*,
366 ptid_t
, struct target_waitstatus
*, int);
367 void (*to_fetch_registers
) (struct target_ops
*, struct regcache
*, int);
368 void (*to_store_registers
) (struct target_ops
*, struct regcache
*, int);
369 void (*to_prepare_to_store
) (struct regcache
*);
371 /* Transfer LEN bytes of memory between GDB address MYADDR and
372 target address MEMADDR. If WRITE, transfer them to the target, else
373 transfer them from the target. TARGET is the target from which we
376 Return value, N, is one of the following:
378 0 means that we can't handle this. If errno has been set, it is the
379 error which prevented us from doing it (FIXME: What about bfd_error?).
381 positive (call it N) means that we have transferred N bytes
382 starting at MEMADDR. We might be able to handle more bytes
383 beyond this length, but no promises.
385 negative (call its absolute value N) means that we cannot
386 transfer right at MEMADDR, but we could transfer at least
387 something at MEMADDR + N.
389 NOTE: cagney/2004-10-01: This has been entirely superseeded by
390 to_xfer_partial and inferior inheritance. */
392 int (*deprecated_xfer_memory
) (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
394 struct mem_attrib
*attrib
,
395 struct target_ops
*target
);
397 void (*to_files_info
) (struct target_ops
*);
398 int (*to_insert_breakpoint
) (struct gdbarch
*, struct bp_target_info
*);
399 int (*to_remove_breakpoint
) (struct gdbarch
*, struct bp_target_info
*);
400 int (*to_can_use_hw_breakpoint
) (int, int, int);
401 int (*to_ranged_break_num_registers
) (struct target_ops
*);
402 int (*to_insert_hw_breakpoint
) (struct gdbarch
*, struct bp_target_info
*);
403 int (*to_remove_hw_breakpoint
) (struct gdbarch
*, struct bp_target_info
*);
405 /* Documentation of what the two routines below are expected to do is
406 provided with the corresponding target_* macros. */
407 int (*to_remove_watchpoint
) (CORE_ADDR
, int, int, struct expression
*);
408 int (*to_insert_watchpoint
) (CORE_ADDR
, int, int, struct expression
*);
410 int (*to_insert_mask_watchpoint
) (struct target_ops
*,
411 CORE_ADDR
, CORE_ADDR
, int);
412 int (*to_remove_mask_watchpoint
) (struct target_ops
*,
413 CORE_ADDR
, CORE_ADDR
, int);
414 int (*to_stopped_by_watchpoint
) (void);
415 int to_have_steppable_watchpoint
;
416 int to_have_continuable_watchpoint
;
417 int (*to_stopped_data_address
) (struct target_ops
*, CORE_ADDR
*);
418 int (*to_watchpoint_addr_within_range
) (struct target_ops
*,
419 CORE_ADDR
, CORE_ADDR
, int);
421 /* Documentation of this routine is provided with the corresponding
423 int (*to_region_ok_for_hw_watchpoint
) (CORE_ADDR
, int);
425 int (*to_can_accel_watchpoint_condition
) (CORE_ADDR
, int, int,
426 struct expression
*);
427 int (*to_masked_watch_num_registers
) (struct target_ops
*,
428 CORE_ADDR
, CORE_ADDR
);
429 void (*to_terminal_init
) (void);
430 void (*to_terminal_inferior
) (void);
431 void (*to_terminal_ours_for_output
) (void);
432 void (*to_terminal_ours
) (void);
433 void (*to_terminal_save_ours
) (void);
434 void (*to_terminal_info
) (const char *, int);
435 void (*to_kill
) (struct target_ops
*);
436 void (*to_load
) (char *, int);
437 void (*to_create_inferior
) (struct target_ops
*,
438 char *, char *, char **, int);
439 void (*to_post_startup_inferior
) (ptid_t
);
440 int (*to_insert_fork_catchpoint
) (int);
441 int (*to_remove_fork_catchpoint
) (int);
442 int (*to_insert_vfork_catchpoint
) (int);
443 int (*to_remove_vfork_catchpoint
) (int);
444 int (*to_follow_fork
) (struct target_ops
*, int, int);
445 int (*to_insert_exec_catchpoint
) (int);
446 int (*to_remove_exec_catchpoint
) (int);
447 int (*to_set_syscall_catchpoint
) (int, int, int, int, int *);
448 int (*to_has_exited
) (int, int, int *);
449 void (*to_mourn_inferior
) (struct target_ops
*);
450 int (*to_can_run
) (void);
452 /* Documentation of this routine is provided with the corresponding
454 void (*to_pass_signals
) (int, unsigned char *);
456 /* Documentation of this routine is provided with the
457 corresponding target_* function. */
458 void (*to_program_signals
) (int, unsigned char *);
460 int (*to_thread_alive
) (struct target_ops
*, ptid_t ptid
);
461 void (*to_find_new_threads
) (struct target_ops
*);
462 char *(*to_pid_to_str
) (struct target_ops
*, ptid_t
);
463 char *(*to_extra_thread_info
) (struct thread_info
*);
464 char *(*to_thread_name
) (struct thread_info
*);
465 void (*to_stop
) (ptid_t
);
466 void (*to_rcmd
) (char *command
, struct ui_file
*output
);
467 char *(*to_pid_to_exec_file
) (int pid
);
468 void (*to_log_command
) (const char *);
469 struct target_section_table
*(*to_get_section_table
) (struct target_ops
*);
470 enum strata to_stratum
;
471 int (*to_has_all_memory
) (struct target_ops
*);
472 int (*to_has_memory
) (struct target_ops
*);
473 int (*to_has_stack
) (struct target_ops
*);
474 int (*to_has_registers
) (struct target_ops
*);
475 int (*to_has_execution
) (struct target_ops
*, ptid_t
);
476 int to_has_thread_control
; /* control thread execution */
477 int to_attach_no_wait
;
478 /* ASYNC target controls */
479 int (*to_can_async_p
) (void);
480 int (*to_is_async_p
) (void);
481 void (*to_async
) (void (*) (enum inferior_event_type
, void *), void *);
482 int (*to_supports_non_stop
) (void);
483 /* find_memory_regions support method for gcore */
484 int (*to_find_memory_regions
) (find_memory_region_ftype func
, void *data
);
485 /* make_corefile_notes support method for gcore */
486 char * (*to_make_corefile_notes
) (bfd
*, int *);
487 /* get_bookmark support method for bookmarks */
488 gdb_byte
* (*to_get_bookmark
) (char *, int);
489 /* goto_bookmark support method for bookmarks */
490 void (*to_goto_bookmark
) (gdb_byte
*, int);
491 /* Return the thread-local address at OFFSET in the
492 thread-local storage for the thread PTID and the shared library
493 or executable file given by OBJFILE. If that block of
494 thread-local storage hasn't been allocated yet, this function
495 may return an error. */
496 CORE_ADDR (*to_get_thread_local_address
) (struct target_ops
*ops
,
498 CORE_ADDR load_module_addr
,
501 /* Request that OPS transfer up to LEN 8-bit bytes of the target's
502 OBJECT. The OFFSET, for a seekable object, specifies the
503 starting point. The ANNEX can be used to provide additional
504 data-specific information to the target.
506 Return the number of bytes actually transfered, zero when no
507 further transfer is possible, and a negative error code (really
508 an 'enum target_xfer_error' value) when the transfer is not
509 supported. Return of a positive value smaller than LEN does
510 not indicate the end of the object, only the end of the
511 transfer; higher level code should continue transferring if
512 desired. This is handled in target.c.
514 The interface does not support a "retry" mechanism. Instead it
515 assumes that at least one byte will be transfered on each
518 NOTE: cagney/2003-10-17: The current interface can lead to
519 fragmented transfers. Lower target levels should not implement
520 hacks, such as enlarging the transfer, in an attempt to
521 compensate for this. Instead, the target stack should be
522 extended so that it implements supply/collect methods and a
523 look-aside object cache. With that available, the lowest
524 target can safely and freely "push" data up the stack.
526 See target_read and target_write for more information. One,
527 and only one, of readbuf or writebuf must be non-NULL. */
529 LONGEST (*to_xfer_partial
) (struct target_ops
*ops
,
530 enum target_object object
, const char *annex
,
531 gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
532 ULONGEST offset
, LONGEST len
);
534 /* Returns the memory map for the target. A return value of NULL
535 means that no memory map is available. If a memory address
536 does not fall within any returned regions, it's assumed to be
537 RAM. The returned memory regions should not overlap.
539 The order of regions does not matter; target_memory_map will
540 sort regions by starting address. For that reason, this
541 function should not be called directly except via
544 This method should not cache data; if the memory map could
545 change unexpectedly, it should be invalidated, and higher
546 layers will re-fetch it. */
547 VEC(mem_region_s
) *(*to_memory_map
) (struct target_ops
*);
549 /* Erases the region of flash memory starting at ADDRESS, of
552 Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned
553 on flash block boundaries, as reported by 'to_memory_map'. */
554 void (*to_flash_erase
) (struct target_ops
*,
555 ULONGEST address
, LONGEST length
);
557 /* Finishes a flash memory write sequence. After this operation
558 all flash memory should be available for writing and the result
559 of reading from areas written by 'to_flash_write' should be
560 equal to what was written. */
561 void (*to_flash_done
) (struct target_ops
*);
563 /* Describe the architecture-specific features of this target.
564 Returns the description found, or NULL if no description
566 const struct target_desc
*(*to_read_description
) (struct target_ops
*ops
);
568 /* Build the PTID of the thread on which a given task is running,
569 based on LWP and THREAD. These values are extracted from the
570 task Private_Data section of the Ada Task Control Block, and
571 their interpretation depends on the target. */
572 ptid_t (*to_get_ada_task_ptid
) (long lwp
, long thread
);
574 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
575 Return 0 if *READPTR is already at the end of the buffer.
576 Return -1 if there is insufficient buffer for a whole entry.
577 Return 1 if an entry was read into *TYPEP and *VALP. */
578 int (*to_auxv_parse
) (struct target_ops
*ops
, gdb_byte
**readptr
,
579 gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
581 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
582 sequence of bytes in PATTERN with length PATTERN_LEN.
584 The result is 1 if found, 0 if not found, and -1 if there was an error
585 requiring halting of the search (e.g. memory read error).
586 If the pattern is found the address is recorded in FOUND_ADDRP. */
587 int (*to_search_memory
) (struct target_ops
*ops
,
588 CORE_ADDR start_addr
, ULONGEST search_space_len
,
589 const gdb_byte
*pattern
, ULONGEST pattern_len
,
590 CORE_ADDR
*found_addrp
);
592 /* Can target execute in reverse? */
593 int (*to_can_execute_reverse
) (void);
595 /* The direction the target is currently executing. Must be
596 implemented on targets that support reverse execution and async
597 mode. The default simply returns forward execution. */
598 enum exec_direction_kind (*to_execution_direction
) (void);
600 /* Does this target support debugging multiple processes
602 int (*to_supports_multi_process
) (void);
604 /* Does this target support enabling and disabling tracepoints while a trace
605 experiment is running? */
606 int (*to_supports_enable_disable_tracepoint
) (void);
608 /* Does this target support disabling address space randomization? */
609 int (*to_supports_disable_randomization
) (void);
611 /* Does this target support the tracenz bytecode for string collection? */
612 int (*to_supports_string_tracing
) (void);
614 /* Does this target support evaluation of breakpoint conditions on its
616 int (*to_supports_evaluation_of_breakpoint_conditions
) (void);
618 /* Does this target support evaluation of breakpoint commands on its
620 int (*to_can_run_breakpoint_commands
) (void);
622 /* Determine current architecture of thread PTID.
624 The target is supposed to determine the architecture of the code where
625 the target is currently stopped at (on Cell, if a target is in spu_run,
626 to_thread_architecture would return SPU, otherwise PPC32 or PPC64).
627 This is architecture used to perform decr_pc_after_break adjustment,
628 and also determines the frame architecture of the innermost frame.
629 ptrace operations need to operate according to target_gdbarch ().
631 The default implementation always returns target_gdbarch (). */
632 struct gdbarch
*(*to_thread_architecture
) (struct target_ops
*, ptid_t
);
634 /* Determine current address space of thread PTID.
636 The default implementation always returns the inferior's
638 struct address_space
*(*to_thread_address_space
) (struct target_ops
*,
641 /* Target file operations. */
643 /* Open FILENAME on the target, using FLAGS and MODE. Return a
644 target file descriptor, or -1 if an error occurs (and set
646 int (*to_fileio_open
) (const char *filename
, int flags
, int mode
,
649 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
650 Return the number of bytes written, or -1 if an error occurs
651 (and set *TARGET_ERRNO). */
652 int (*to_fileio_pwrite
) (int fd
, const gdb_byte
*write_buf
, int len
,
653 ULONGEST offset
, int *target_errno
);
655 /* Read up to LEN bytes FD on the target into READ_BUF.
656 Return the number of bytes read, or -1 if an error occurs
657 (and set *TARGET_ERRNO). */
658 int (*to_fileio_pread
) (int fd
, gdb_byte
*read_buf
, int len
,
659 ULONGEST offset
, int *target_errno
);
661 /* Close FD on the target. Return 0, or -1 if an error occurs
662 (and set *TARGET_ERRNO). */
663 int (*to_fileio_close
) (int fd
, int *target_errno
);
665 /* Unlink FILENAME on the target. Return 0, or -1 if an error
666 occurs (and set *TARGET_ERRNO). */
667 int (*to_fileio_unlink
) (const char *filename
, int *target_errno
);
669 /* Read value of symbolic link FILENAME on the target. Return a
670 null-terminated string allocated via xmalloc, or NULL if an error
671 occurs (and set *TARGET_ERRNO). */
672 char *(*to_fileio_readlink
) (const char *filename
, int *target_errno
);
675 /* Implement the "info proc" command. */
676 void (*to_info_proc
) (struct target_ops
*, char *, enum info_proc_what
);
678 /* Tracepoint-related operations. */
680 /* Prepare the target for a tracing run. */
681 void (*to_trace_init
) (void);
683 /* Send full details of a tracepoint location to the target. */
684 void (*to_download_tracepoint
) (struct bp_location
*location
);
686 /* Is the target able to download tracepoint locations in current
688 int (*to_can_download_tracepoint
) (void);
690 /* Send full details of a trace state variable to the target. */
691 void (*to_download_trace_state_variable
) (struct trace_state_variable
*tsv
);
693 /* Enable a tracepoint on the target. */
694 void (*to_enable_tracepoint
) (struct bp_location
*location
);
696 /* Disable a tracepoint on the target. */
697 void (*to_disable_tracepoint
) (struct bp_location
*location
);
699 /* Inform the target info of memory regions that are readonly
700 (such as text sections), and so it should return data from
701 those rather than look in the trace buffer. */
702 void (*to_trace_set_readonly_regions
) (void);
704 /* Start a trace run. */
705 void (*to_trace_start
) (void);
707 /* Get the current status of a tracing run. */
708 int (*to_get_trace_status
) (struct trace_status
*ts
);
710 void (*to_get_tracepoint_status
) (struct breakpoint
*tp
,
711 struct uploaded_tp
*utp
);
713 /* Stop a trace run. */
714 void (*to_trace_stop
) (void);
716 /* Ask the target to find a trace frame of the given type TYPE,
717 using NUM, ADDR1, and ADDR2 as search parameters. Returns the
718 number of the trace frame, and also the tracepoint number at
719 TPP. If no trace frame matches, return -1. May throw if the
721 int (*to_trace_find
) (enum trace_find_type type
, int num
,
722 CORE_ADDR addr1
, CORE_ADDR addr2
, int *tpp
);
724 /* Get the value of the trace state variable number TSV, returning
725 1 if the value is known and writing the value itself into the
726 location pointed to by VAL, else returning 0. */
727 int (*to_get_trace_state_variable_value
) (int tsv
, LONGEST
*val
);
729 int (*to_save_trace_data
) (const char *filename
);
731 int (*to_upload_tracepoints
) (struct uploaded_tp
**utpp
);
733 int (*to_upload_trace_state_variables
) (struct uploaded_tsv
**utsvp
);
735 LONGEST (*to_get_raw_trace_data
) (gdb_byte
*buf
,
736 ULONGEST offset
, LONGEST len
);
738 /* Get the minimum length of instruction on which a fast tracepoint
739 may be set on the target. If this operation is unsupported,
740 return -1. If for some reason the minimum length cannot be
741 determined, return 0. */
742 int (*to_get_min_fast_tracepoint_insn_len
) (void);
744 /* Set the target's tracing behavior in response to unexpected
745 disconnection - set VAL to 1 to keep tracing, 0 to stop. */
746 void (*to_set_disconnected_tracing
) (int val
);
747 void (*to_set_circular_trace_buffer
) (int val
);
748 /* Set the size of trace buffer in the target. */
749 void (*to_set_trace_buffer_size
) (LONGEST val
);
751 /* Add/change textual notes about the trace run, returning 1 if
752 successful, 0 otherwise. */
753 int (*to_set_trace_notes
) (const char *user
, const char *notes
,
754 const char *stopnotes
);
756 /* Return the processor core that thread PTID was last seen on.
757 This information is updated only when:
758 - update_thread_list is called
760 If the core cannot be determined -- either for the specified
761 thread, or right now, or in this debug session, or for this
762 target -- return -1. */
763 int (*to_core_of_thread
) (struct target_ops
*, ptid_t ptid
);
765 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range
766 matches the contents of [DATA,DATA+SIZE). Returns 1 if there's
767 a match, 0 if there's a mismatch, and -1 if an error is
768 encountered while reading memory. */
769 int (*to_verify_memory
) (struct target_ops
*, const gdb_byte
*data
,
770 CORE_ADDR memaddr
, ULONGEST size
);
772 /* Return the address of the start of the Thread Information Block
773 a Windows OS specific feature. */
774 int (*to_get_tib_address
) (ptid_t ptid
, CORE_ADDR
*addr
);
776 /* Send the new settings of write permission variables. */
777 void (*to_set_permissions
) (void);
779 /* Look for a static tracepoint marker at ADDR, and fill in MARKER
780 with its details. Return 1 on success, 0 on failure. */
781 int (*to_static_tracepoint_marker_at
) (CORE_ADDR
,
782 struct static_tracepoint_marker
*marker
);
784 /* Return a vector of all tracepoints markers string id ID, or all
785 markers if ID is NULL. */
786 VEC(static_tracepoint_marker_p
) *(*to_static_tracepoint_markers_by_strid
)
789 /* Return a traceframe info object describing the current
790 traceframe's contents. If the target doesn't support
791 traceframe info, return NULL. If the current traceframe is not
792 selected (the current traceframe number is -1), the target can
793 choose to return either NULL or an empty traceframe info. If
794 NULL is returned, for example in remote target, GDB will read
795 from the live inferior. If an empty traceframe info is
796 returned, for example in tfile target, which means the
797 traceframe info is available, but the requested memory is not
798 available in it. GDB will try to see if the requested memory
799 is available in the read-only sections. This method should not
800 cache data; higher layers take care of caching, invalidating,
801 and re-fetching when necessary. */
802 struct traceframe_info
*(*to_traceframe_info
) (void);
804 /* Ask the target to use or not to use agent according to USE. Return 1
805 successful, 0 otherwise. */
806 int (*to_use_agent
) (int use
);
808 /* Is the target able to use agent in current state? */
809 int (*to_can_use_agent
) (void);
811 /* Check whether the target supports branch tracing. */
812 int (*to_supports_btrace
) (void);
814 /* Enable branch tracing for PTID and allocate a branch trace target
815 information struct for reading and for disabling branch trace. */
816 struct btrace_target_info
*(*to_enable_btrace
) (ptid_t ptid
);
818 /* Disable branch tracing and deallocate TINFO. */
819 void (*to_disable_btrace
) (struct btrace_target_info
*tinfo
);
821 /* Disable branch tracing and deallocate TINFO. This function is similar
822 to to_disable_btrace, except that it is called during teardown and is
823 only allowed to perform actions that are safe. A counter-example would
824 be attempting to talk to a remote target. */
825 void (*to_teardown_btrace
) (struct btrace_target_info
*tinfo
);
827 /* Read branch trace data. */
828 VEC (btrace_block_s
) *(*to_read_btrace
) (struct btrace_target_info
*,
829 enum btrace_read_type
);
831 /* Stop trace recording. */
832 void (*to_stop_recording
) (void);
834 /* Print information about the recording. */
835 void (*to_info_record
) (void);
837 /* Save the recorded execution trace into a file. */
838 void (*to_save_record
) (const char *filename
);
840 /* Delete the recorded execution trace from the current position onwards. */
841 void (*to_delete_record
) (void);
843 /* Query if the record target is currently replaying. */
844 int (*to_record_is_replaying
) (void);
846 /* Go to the begin of the execution trace. */
847 void (*to_goto_record_begin
) (void);
849 /* Go to the end of the execution trace. */
850 void (*to_goto_record_end
) (void);
852 /* Go to a specific location in the recorded execution trace. */
853 void (*to_goto_record
) (ULONGEST insn
);
855 /* Disassemble SIZE instructions in the recorded execution trace from
856 the current position.
857 If SIZE < 0, disassemble abs (SIZE) preceding instructions; otherwise,
858 disassemble SIZE succeeding instructions. */
859 void (*to_insn_history
) (int size
, int flags
);
861 /* Disassemble SIZE instructions in the recorded execution trace around
863 If SIZE < 0, disassemble abs (SIZE) instructions before FROM; otherwise,
864 disassemble SIZE instructions after FROM. */
865 void (*to_insn_history_from
) (ULONGEST from
, int size
, int flags
);
867 /* Disassemble a section of the recorded execution trace from instruction
868 BEGIN (inclusive) to instruction END (exclusive). */
869 void (*to_insn_history_range
) (ULONGEST begin
, ULONGEST end
, int flags
);
871 /* Print a function trace of the recorded execution trace.
872 If SIZE < 0, print abs (SIZE) preceding functions; otherwise, print SIZE
873 succeeding functions. */
874 void (*to_call_history
) (int size
, int flags
);
876 /* Print a function trace of the recorded execution trace starting
878 If SIZE < 0, print abs (SIZE) functions before FROM; otherwise, print
879 SIZE functions after FROM. */
880 void (*to_call_history_from
) (ULONGEST begin
, int size
, int flags
);
882 /* Print a function trace of an execution trace section from function BEGIN
883 (inclusive) to function END (exclusive). */
884 void (*to_call_history_range
) (ULONGEST begin
, ULONGEST end
, int flags
);
886 /* Nonzero if TARGET_OBJECT_LIBRARIES_SVR4 may be read with a
888 int (*to_augmented_libraries_svr4_read
) (void);
891 /* Need sub-structure for target machine related rather than comm related?
895 /* Magic number for checking ops size. If a struct doesn't end with this
896 number, somebody changed the declaration but didn't change all the
897 places that initialize one. */
899 #define OPS_MAGIC 3840
901 /* The ops structure for our "current" target process. This should
902 never be NULL. If there is no target, it points to the dummy_target. */
904 extern struct target_ops current_target
;
906 /* Define easy words for doing these operations on our current target. */
908 #define target_shortname (current_target.to_shortname)
909 #define target_longname (current_target.to_longname)
911 /* Does whatever cleanup is required for a target that we are no
912 longer going to be calling. This routine is automatically always
913 called after popping the target off the target stack - the target's
914 own methods are no longer available through the target vector.
915 Closing file descriptors and freeing all memory allocated memory are
916 typical things it should do. */
918 void target_close (struct target_ops
*targ
);
920 /* Attaches to a process on the target side. Arguments are as passed
921 to the `attach' command by the user. This routine can be called
922 when the target is not on the target-stack, if the target_can_run
923 routine returns 1; in that case, it must push itself onto the stack.
924 Upon exit, the target should be ready for normal operations, and
925 should be ready to deliver the status of the process immediately
926 (without waiting) to an upcoming target_wait call. */
928 void target_attach (char *, int);
930 /* Some targets don't generate traps when attaching to the inferior,
931 or their target_attach implementation takes care of the waiting.
932 These targets must set to_attach_no_wait. */
934 #define target_attach_no_wait \
935 (current_target.to_attach_no_wait)
937 /* The target_attach operation places a process under debugger control,
938 and stops the process.
940 This operation provides a target-specific hook that allows the
941 necessary bookkeeping to be performed after an attach completes. */
942 #define target_post_attach(pid) \
943 (*current_target.to_post_attach) (pid)
945 /* Takes a program previously attached to and detaches it.
946 The program may resume execution (some targets do, some don't) and will
947 no longer stop on signals, etc. We better not have left any breakpoints
948 in the program or it'll die when it hits one. ARGS is arguments
949 typed by the user (e.g. a signal to send the process). FROM_TTY
950 says whether to be verbose or not. */
952 extern void target_detach (char *, int);
954 /* Disconnect from the current target without resuming it (leaving it
955 waiting for a debugger). */
957 extern void target_disconnect (char *, int);
959 /* Resume execution of the target process PTID (or a group of
960 threads). STEP says whether to single-step or to run free; SIGGNAL
961 is the signal to be given to the target, or GDB_SIGNAL_0 for no
962 signal. The caller may not pass GDB_SIGNAL_DEFAULT. A specific
963 PTID means `step/resume only this process id'. A wildcard PTID
964 (all threads, or all threads of process) means `step/resume
965 INFERIOR_PTID, and let other threads (for which the wildcard PTID
966 matches) resume with their 'thread->suspend.stop_signal' signal
967 (usually GDB_SIGNAL_0) if it is in "pass" state, or with no signal
968 if in "no pass" state. */
970 extern void target_resume (ptid_t ptid
, int step
, enum gdb_signal signal
);
972 /* Wait for process pid to do something. PTID = -1 to wait for any
973 pid to do something. Return pid of child, or -1 in case of error;
974 store status through argument pointer STATUS. Note that it is
975 _NOT_ OK to throw_exception() out of target_wait() without popping
976 the debugging target from the stack; GDB isn't prepared to get back
977 to the prompt with a debugging target but without the frame cache,
978 stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W*
981 extern ptid_t
target_wait (ptid_t ptid
, struct target_waitstatus
*status
,
984 /* Fetch at least register REGNO, or all regs if regno == -1. No result. */
986 extern void target_fetch_registers (struct regcache
*regcache
, int regno
);
988 /* Store at least register REGNO, or all regs if REGNO == -1.
989 It can store as many registers as it wants to, so target_prepare_to_store
990 must have been previously called. Calls error() if there are problems. */
992 extern void target_store_registers (struct regcache
*regcache
, int regs
);
994 /* Get ready to modify the registers array. On machines which store
995 individual registers, this doesn't need to do anything. On machines
996 which store all the registers in one fell swoop, this makes sure
997 that REGISTERS contains all the registers from the program being
1000 #define target_prepare_to_store(regcache) \
1001 (*current_target.to_prepare_to_store) (regcache)
1003 /* Determine current address space of thread PTID. */
1005 struct address_space
*target_thread_address_space (ptid_t
);
1007 /* Implement the "info proc" command. This returns one if the request
1008 was handled, and zero otherwise. It can also throw an exception if
1009 an error was encountered while attempting to handle the
1012 int target_info_proc (char *, enum info_proc_what
);
1014 /* Returns true if this target can debug multiple processes
1017 #define target_supports_multi_process() \
1018 (*current_target.to_supports_multi_process) ()
1020 /* Returns true if this target can disable address space randomization. */
1022 int target_supports_disable_randomization (void);
1024 /* Returns true if this target can enable and disable tracepoints
1025 while a trace experiment is running. */
1027 #define target_supports_enable_disable_tracepoint() \
1028 (*current_target.to_supports_enable_disable_tracepoint) ()
1030 #define target_supports_string_tracing() \
1031 (*current_target.to_supports_string_tracing) ()
1033 /* Returns true if this target can handle breakpoint conditions
1036 #define target_supports_evaluation_of_breakpoint_conditions() \
1037 (*current_target.to_supports_evaluation_of_breakpoint_conditions) ()
1039 /* Returns true if this target can handle breakpoint commands
1042 #define target_can_run_breakpoint_commands() \
1043 (*current_target.to_can_run_breakpoint_commands) ()
1045 /* Invalidate all target dcaches. */
1046 extern void target_dcache_invalidate (void);
1048 extern int target_read_string (CORE_ADDR
, char **, int, int *);
1050 extern int target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
1053 extern int target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
);
1055 extern int target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
,
1058 extern int target_write_raw_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
,
1061 /* Fetches the target's memory map. If one is found it is sorted
1062 and returned, after some consistency checking. Otherwise, NULL
1064 VEC(mem_region_s
) *target_memory_map (void);
1066 /* Erase the specified flash region. */
1067 void target_flash_erase (ULONGEST address
, LONGEST length
);
1069 /* Finish a sequence of flash operations. */
1070 void target_flash_done (void);
1072 /* Describes a request for a memory write operation. */
1073 struct memory_write_request
1075 /* Begining address that must be written. */
1077 /* Past-the-end address. */
1079 /* The data to write. */
1081 /* A callback baton for progress reporting for this request. */
1084 typedef struct memory_write_request memory_write_request_s
;
1085 DEF_VEC_O(memory_write_request_s
);
1087 /* Enumeration specifying different flash preservation behaviour. */
1088 enum flash_preserve_mode
1094 /* Write several memory blocks at once. This version can be more
1095 efficient than making several calls to target_write_memory, in
1096 particular because it can optimize accesses to flash memory.
1098 Moreover, this is currently the only memory access function in gdb
1099 that supports writing to flash memory, and it should be used for
1100 all cases where access to flash memory is desirable.
1102 REQUESTS is the vector (see vec.h) of memory_write_request.
1103 PRESERVE_FLASH_P indicates what to do with blocks which must be
1104 erased, but not completely rewritten.
1105 PROGRESS_CB is a function that will be periodically called to provide
1106 feedback to user. It will be called with the baton corresponding
1107 to the request currently being written. It may also be called
1108 with a NULL baton, when preserved flash sectors are being rewritten.
1110 The function returns 0 on success, and error otherwise. */
1111 int target_write_memory_blocks (VEC(memory_write_request_s
) *requests
,
1112 enum flash_preserve_mode preserve_flash_p
,
1113 void (*progress_cb
) (ULONGEST
, void *));
1115 /* Print a line about the current target. */
1117 #define target_files_info() \
1118 (*current_target.to_files_info) (¤t_target)
1120 /* Insert a breakpoint at address BP_TGT->placed_address in the target
1121 machine. Result is 0 for success, non-zero for error. */
1123 extern int target_insert_breakpoint (struct gdbarch
*gdbarch
,
1124 struct bp_target_info
*bp_tgt
);
1126 /* Remove a breakpoint at address BP_TGT->placed_address in the target
1127 machine. Result is 0 for success, non-zero for error. */
1129 extern int target_remove_breakpoint (struct gdbarch
*gdbarch
,
1130 struct bp_target_info
*bp_tgt
);
1132 /* Initialize the terminal settings we record for the inferior,
1133 before we actually run the inferior. */
1135 #define target_terminal_init() \
1136 (*current_target.to_terminal_init) ()
1138 /* Put the inferior's terminal settings into effect.
1139 This is preparation for starting or resuming the inferior. */
1141 extern void target_terminal_inferior (void);
1143 /* Put some of our terminal settings into effect,
1144 enough to get proper results from our output,
1145 but do not change into or out of RAW mode
1146 so that no input is discarded.
1148 After doing this, either terminal_ours or terminal_inferior
1149 should be called to get back to a normal state of affairs. */
1151 #define target_terminal_ours_for_output() \
1152 (*current_target.to_terminal_ours_for_output) ()
1154 /* Put our terminal settings into effect.
1155 First record the inferior's terminal settings
1156 so they can be restored properly later. */
1158 #define target_terminal_ours() \
1159 (*current_target.to_terminal_ours) ()
1161 /* Save our terminal settings.
1162 This is called from TUI after entering or leaving the curses
1163 mode. Since curses modifies our terminal this call is here
1164 to take this change into account. */
1166 #define target_terminal_save_ours() \
1167 (*current_target.to_terminal_save_ours) ()
1169 /* Print useful information about our terminal status, if such a thing
1172 #define target_terminal_info(arg, from_tty) \
1173 (*current_target.to_terminal_info) (arg, from_tty)
1175 /* Kill the inferior process. Make it go away. */
1177 extern void target_kill (void);
1179 /* Load an executable file into the target process. This is expected
1180 to not only bring new code into the target process, but also to
1181 update GDB's symbol tables to match.
1183 ARG contains command-line arguments, to be broken down with
1184 buildargv (). The first non-switch argument is the filename to
1185 load, FILE; the second is a number (as parsed by strtoul (..., ...,
1186 0)), which is an offset to apply to the load addresses of FILE's
1187 sections. The target may define switches, or other non-switch
1188 arguments, as it pleases. */
1190 extern void target_load (char *arg
, int from_tty
);
1192 /* Start an inferior process and set inferior_ptid to its pid.
1193 EXEC_FILE is the file to run.
1194 ALLARGS is a string containing the arguments to the program.
1195 ENV is the environment vector to pass. Errors reported with error().
1196 On VxWorks and various standalone systems, we ignore exec_file. */
1198 void target_create_inferior (char *exec_file
, char *args
,
1199 char **env
, int from_tty
);
1201 /* Some targets (such as ttrace-based HPUX) don't allow us to request
1202 notification of inferior events such as fork and vork immediately
1203 after the inferior is created. (This because of how gdb gets an
1204 inferior created via invoking a shell to do it. In such a scenario,
1205 if the shell init file has commands in it, the shell will fork and
1206 exec for each of those commands, and we will see each such fork
1209 Such targets will supply an appropriate definition for this function. */
1211 #define target_post_startup_inferior(ptid) \
1212 (*current_target.to_post_startup_inferior) (ptid)
1214 /* On some targets, we can catch an inferior fork or vfork event when
1215 it occurs. These functions insert/remove an already-created
1216 catchpoint for such events. They return 0 for success, 1 if the
1217 catchpoint type is not supported and -1 for failure. */
1219 #define target_insert_fork_catchpoint(pid) \
1220 (*current_target.to_insert_fork_catchpoint) (pid)
1222 #define target_remove_fork_catchpoint(pid) \
1223 (*current_target.to_remove_fork_catchpoint) (pid)
1225 #define target_insert_vfork_catchpoint(pid) \
1226 (*current_target.to_insert_vfork_catchpoint) (pid)
1228 #define target_remove_vfork_catchpoint(pid) \
1229 (*current_target.to_remove_vfork_catchpoint) (pid)
1231 /* If the inferior forks or vforks, this function will be called at
1232 the next resume in order to perform any bookkeeping and fiddling
1233 necessary to continue debugging either the parent or child, as
1234 requested, and releasing the other. Information about the fork
1235 or vfork event is available via get_last_target_status ().
1236 This function returns 1 if the inferior should not be resumed
1237 (i.e. there is another event pending). */
1239 int target_follow_fork (int follow_child
, int detach_fork
);
1241 /* On some targets, we can catch an inferior exec event when it
1242 occurs. These functions insert/remove an already-created
1243 catchpoint for such events. They return 0 for success, 1 if the
1244 catchpoint type is not supported and -1 for failure. */
1246 #define target_insert_exec_catchpoint(pid) \
1247 (*current_target.to_insert_exec_catchpoint) (pid)
1249 #define target_remove_exec_catchpoint(pid) \
1250 (*current_target.to_remove_exec_catchpoint) (pid)
1254 NEEDED is nonzero if any syscall catch (of any kind) is requested.
1255 If NEEDED is zero, it means the target can disable the mechanism to
1256 catch system calls because there are no more catchpoints of this type.
1258 ANY_COUNT is nonzero if a generic (filter-less) syscall catch is
1259 being requested. In this case, both TABLE_SIZE and TABLE should
1262 TABLE_SIZE is the number of elements in TABLE. It only matters if
1265 TABLE is an array of ints, indexed by syscall number. An element in
1266 this array is nonzero if that syscall should be caught. This argument
1267 only matters if ANY_COUNT is zero.
1269 Return 0 for success, 1 if syscall catchpoints are not supported or -1
1272 #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \
1273 (*current_target.to_set_syscall_catchpoint) (pid, needed, any_count, \
1276 /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
1277 exit code of PID, if any. */
1279 #define target_has_exited(pid,wait_status,exit_status) \
1280 (*current_target.to_has_exited) (pid,wait_status,exit_status)
1282 /* The debugger has completed a blocking wait() call. There is now
1283 some process event that must be processed. This function should
1284 be defined by those targets that require the debugger to perform
1285 cleanup or internal state changes in response to the process event. */
1287 /* The inferior process has died. Do what is right. */
1289 void target_mourn_inferior (void);
1291 /* Does target have enough data to do a run or attach command? */
1293 #define target_can_run(t) \
1294 ((t)->to_can_run) ()
1296 /* Set list of signals to be handled in the target.
1298 PASS_SIGNALS is an array of size NSIG, indexed by target signal number
1299 (enum gdb_signal). For every signal whose entry in this array is
1300 non-zero, the target is allowed -but not required- to skip reporting
1301 arrival of the signal to the GDB core by returning from target_wait,
1302 and to pass the signal directly to the inferior instead.
1304 However, if the target is hardware single-stepping a thread that is
1305 about to receive a signal, it needs to be reported in any case, even
1306 if mentioned in a previous target_pass_signals call. */
1308 extern void target_pass_signals (int nsig
, unsigned char *pass_signals
);
1310 /* Set list of signals the target may pass to the inferior. This
1311 directly maps to the "handle SIGNAL pass/nopass" setting.
1313 PROGRAM_SIGNALS is an array of size NSIG, indexed by target signal
1314 number (enum gdb_signal). For every signal whose entry in this
1315 array is non-zero, the target is allowed to pass the signal to the
1316 inferior. Signals not present in the array shall be silently
1317 discarded. This does not influence whether to pass signals to the
1318 inferior as a result of a target_resume call. This is useful in
1319 scenarios where the target needs to decide whether to pass or not a
1320 signal to the inferior without GDB core involvement, such as for
1321 example, when detaching (as threads may have been suspended with
1322 pending signals not reported to GDB). */
1324 extern void target_program_signals (int nsig
, unsigned char *program_signals
);
1326 /* Check to see if a thread is still alive. */
1328 extern int target_thread_alive (ptid_t ptid
);
1330 /* Query for new threads and add them to the thread list. */
1332 extern void target_find_new_threads (void);
1334 /* Make target stop in a continuable fashion. (For instance, under
1335 Unix, this should act like SIGSTOP). This function is normally
1336 used by GUIs to implement a stop button. */
1338 extern void target_stop (ptid_t ptid
);
1340 /* Send the specified COMMAND to the target's monitor
1341 (shell,interpreter) for execution. The result of the query is
1342 placed in OUTBUF. */
1344 #define target_rcmd(command, outbuf) \
1345 (*current_target.to_rcmd) (command, outbuf)
1348 /* Does the target include all of memory, or only part of it? This
1349 determines whether we look up the target chain for other parts of
1350 memory if this target can't satisfy a request. */
1352 extern int target_has_all_memory_1 (void);
1353 #define target_has_all_memory target_has_all_memory_1 ()
1355 /* Does the target include memory? (Dummy targets don't.) */
1357 extern int target_has_memory_1 (void);
1358 #define target_has_memory target_has_memory_1 ()
1360 /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until
1361 we start a process.) */
1363 extern int target_has_stack_1 (void);
1364 #define target_has_stack target_has_stack_1 ()
1366 /* Does the target have registers? (Exec files don't.) */
1368 extern int target_has_registers_1 (void);
1369 #define target_has_registers target_has_registers_1 ()
1371 /* Does the target have execution? Can we make it jump (through
1372 hoops), or pop its stack a few times? This means that the current
1373 target is currently executing; for some targets, that's the same as
1374 whether or not the target is capable of execution, but there are
1375 also targets which can be current while not executing. In that
1376 case this will become true after target_create_inferior or
1379 extern int target_has_execution_1 (ptid_t
);
1381 /* Like target_has_execution_1, but always passes inferior_ptid. */
1383 extern int target_has_execution_current (void);
1385 #define target_has_execution target_has_execution_current ()
1387 /* Default implementations for process_stratum targets. Return true
1388 if there's a selected inferior, false otherwise. */
1390 extern int default_child_has_all_memory (struct target_ops
*ops
);
1391 extern int default_child_has_memory (struct target_ops
*ops
);
1392 extern int default_child_has_stack (struct target_ops
*ops
);
1393 extern int default_child_has_registers (struct target_ops
*ops
);
1394 extern int default_child_has_execution (struct target_ops
*ops
,
1397 /* Can the target support the debugger control of thread execution?
1398 Can it lock the thread scheduler? */
1400 #define target_can_lock_scheduler \
1401 (current_target.to_has_thread_control & tc_schedlock)
1403 /* Should the target enable async mode if it is supported? Temporary
1404 cludge until async mode is a strict superset of sync mode. */
1405 extern int target_async_permitted
;
1407 /* Can the target support asynchronous execution? */
1408 #define target_can_async_p() (current_target.to_can_async_p ())
1410 /* Is the target in asynchronous execution mode? */
1411 #define target_is_async_p() (current_target.to_is_async_p ())
1413 int target_supports_non_stop (void);
1415 /* Put the target in async mode with the specified callback function. */
1416 #define target_async(CALLBACK,CONTEXT) \
1417 (current_target.to_async ((CALLBACK), (CONTEXT)))
1419 #define target_execution_direction() \
1420 (current_target.to_execution_direction ())
1422 /* Converts a process id to a string. Usually, the string just contains
1423 `process xyz', but on some systems it may contain
1424 `process xyz thread abc'. */
1426 extern char *target_pid_to_str (ptid_t ptid
);
1428 extern char *normal_pid_to_str (ptid_t ptid
);
1430 /* Return a short string describing extra information about PID,
1431 e.g. "sleeping", "runnable", "running on LWP 3". Null return value
1434 #define target_extra_thread_info(TP) \
1435 (current_target.to_extra_thread_info (TP))
1437 /* Return the thread's name. A NULL result means that the target
1438 could not determine this thread's name. */
1440 extern char *target_thread_name (struct thread_info
*);
1442 /* Attempts to find the pathname of the executable file
1443 that was run to create a specified process.
1445 The process PID must be stopped when this operation is used.
1447 If the executable file cannot be determined, NULL is returned.
1449 Else, a pointer to a character string containing the pathname
1450 is returned. This string should be copied into a buffer by
1451 the client if the string will not be immediately used, or if
1454 #define target_pid_to_exec_file(pid) \
1455 (current_target.to_pid_to_exec_file) (pid)
1457 /* See the to_thread_architecture description in struct target_ops. */
1459 #define target_thread_architecture(ptid) \
1460 (current_target.to_thread_architecture (¤t_target, ptid))
1463 * Iterator function for target memory regions.
1464 * Calls a callback function once for each memory region 'mapped'
1465 * in the child process. Defined as a simple macro rather than
1466 * as a function macro so that it can be tested for nullity.
1469 #define target_find_memory_regions(FUNC, DATA) \
1470 (current_target.to_find_memory_regions) (FUNC, DATA)
1473 * Compose corefile .note section.
1476 #define target_make_corefile_notes(BFD, SIZE_P) \
1477 (current_target.to_make_corefile_notes) (BFD, SIZE_P)
1479 /* Bookmark interfaces. */
1480 #define target_get_bookmark(ARGS, FROM_TTY) \
1481 (current_target.to_get_bookmark) (ARGS, FROM_TTY)
1483 #define target_goto_bookmark(ARG, FROM_TTY) \
1484 (current_target.to_goto_bookmark) (ARG, FROM_TTY)
1486 /* Hardware watchpoint interfaces. */
1488 /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or
1489 write). Only the INFERIOR_PTID task is being queried. */
1491 #define target_stopped_by_watchpoint \
1492 (*current_target.to_stopped_by_watchpoint)
1494 /* Non-zero if we have steppable watchpoints */
1496 #define target_have_steppable_watchpoint \
1497 (current_target.to_have_steppable_watchpoint)
1499 /* Non-zero if we have continuable watchpoints */
1501 #define target_have_continuable_watchpoint \
1502 (current_target.to_have_continuable_watchpoint)
1504 /* Provide defaults for hardware watchpoint functions. */
1506 /* If the *_hw_beakpoint functions have not been defined
1507 elsewhere use the definitions in the target vector. */
1509 /* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is
1510 one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or
1511 bp_hardware_breakpoint. CNT is the number of such watchpoints used so far
1512 (including this one?). OTHERTYPE is who knows what... */
1514 #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \
1515 (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE);
1517 /* Returns the number of debug registers needed to watch the given
1518 memory region, or zero if not supported. */
1520 #define target_region_ok_for_hw_watchpoint(addr, len) \
1521 (*current_target.to_region_ok_for_hw_watchpoint) (addr, len)
1524 /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes.
1525 TYPE is 0 for write, 1 for read, and 2 for read/write accesses.
1526 COND is the expression for its condition, or NULL if there's none.
1527 Returns 0 for success, 1 if the watchpoint type is not supported,
1530 #define target_insert_watchpoint(addr, len, type, cond) \
1531 (*current_target.to_insert_watchpoint) (addr, len, type, cond)
1533 #define target_remove_watchpoint(addr, len, type, cond) \
1534 (*current_target.to_remove_watchpoint) (addr, len, type, cond)
1536 /* Insert a new masked watchpoint at ADDR using the mask MASK.
1537 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1538 or hw_access for an access watchpoint. Returns 0 for success, 1 if
1539 masked watchpoints are not supported, -1 for failure. */
1541 extern int target_insert_mask_watchpoint (CORE_ADDR
, CORE_ADDR
, int);
1543 /* Remove a masked watchpoint at ADDR with the mask MASK.
1544 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1545 or hw_access for an access watchpoint. Returns 0 for success, non-zero
1548 extern int target_remove_mask_watchpoint (CORE_ADDR
, CORE_ADDR
, int);
1550 #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
1551 (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt)
1553 #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
1554 (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt)
1556 /* Return number of debug registers needed for a ranged breakpoint,
1557 or -1 if ranged breakpoints are not supported. */
1559 extern int target_ranged_break_num_registers (void);
1561 /* Return non-zero if target knows the data address which triggered this
1562 target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the
1563 INFERIOR_PTID task is being queried. */
1564 #define target_stopped_data_address(target, addr_p) \
1565 (*target.to_stopped_data_address) (target, addr_p)
1567 /* Return non-zero if ADDR is within the range of a watchpoint spanning
1568 LENGTH bytes beginning at START. */
1569 #define target_watchpoint_addr_within_range(target, addr, start, length) \
1570 (*target.to_watchpoint_addr_within_range) (target, addr, start, length)
1572 /* Return non-zero if the target is capable of using hardware to evaluate
1573 the condition expression. In this case, if the condition is false when
1574 the watched memory location changes, execution may continue without the
1575 debugger being notified.
1577 Due to limitations in the hardware implementation, it may be capable of
1578 avoiding triggering the watchpoint in some cases where the condition
1579 expression is false, but may report some false positives as well.
1580 For this reason, GDB will still evaluate the condition expression when
1581 the watchpoint triggers. */
1582 #define target_can_accel_watchpoint_condition(addr, len, type, cond) \
1583 (*current_target.to_can_accel_watchpoint_condition) (addr, len, type, cond)
1585 /* Return number of debug registers needed for a masked watchpoint,
1586 -1 if masked watchpoints are not supported or -2 if the given address
1587 and mask combination cannot be used. */
1589 extern int target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
);
1591 /* Target can execute in reverse? */
1592 #define target_can_execute_reverse \
1593 (current_target.to_can_execute_reverse ? \
1594 current_target.to_can_execute_reverse () : 0)
1596 extern const struct target_desc
*target_read_description (struct target_ops
*);
1598 #define target_get_ada_task_ptid(lwp, tid) \
1599 (*current_target.to_get_ada_task_ptid) (lwp,tid)
1601 /* Utility implementation of searching memory. */
1602 extern int simple_search_memory (struct target_ops
* ops
,
1603 CORE_ADDR start_addr
,
1604 ULONGEST search_space_len
,
1605 const gdb_byte
*pattern
,
1606 ULONGEST pattern_len
,
1607 CORE_ADDR
*found_addrp
);
1609 /* Main entry point for searching memory. */
1610 extern int target_search_memory (CORE_ADDR start_addr
,
1611 ULONGEST search_space_len
,
1612 const gdb_byte
*pattern
,
1613 ULONGEST pattern_len
,
1614 CORE_ADDR
*found_addrp
);
1616 /* Target file operations. */
1618 /* Open FILENAME on the target, using FLAGS and MODE. Return a
1619 target file descriptor, or -1 if an error occurs (and set
1621 extern int target_fileio_open (const char *filename
, int flags
, int mode
,
1624 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
1625 Return the number of bytes written, or -1 if an error occurs
1626 (and set *TARGET_ERRNO). */
1627 extern int target_fileio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
1628 ULONGEST offset
, int *target_errno
);
1630 /* Read up to LEN bytes FD on the target into READ_BUF.
1631 Return the number of bytes read, or -1 if an error occurs
1632 (and set *TARGET_ERRNO). */
1633 extern int target_fileio_pread (int fd
, gdb_byte
*read_buf
, int len
,
1634 ULONGEST offset
, int *target_errno
);
1636 /* Close FD on the target. Return 0, or -1 if an error occurs
1637 (and set *TARGET_ERRNO). */
1638 extern int target_fileio_close (int fd
, int *target_errno
);
1640 /* Unlink FILENAME on the target. Return 0, or -1 if an error
1641 occurs (and set *TARGET_ERRNO). */
1642 extern int target_fileio_unlink (const char *filename
, int *target_errno
);
1644 /* Read value of symbolic link FILENAME on the target. Return a
1645 null-terminated string allocated via xmalloc, or NULL if an error
1646 occurs (and set *TARGET_ERRNO). */
1647 extern char *target_fileio_readlink (const char *filename
, int *target_errno
);
1649 /* Read target file FILENAME. The return value will be -1 if the transfer
1650 fails or is not supported; 0 if the object is empty; or the length
1651 of the object otherwise. If a positive value is returned, a
1652 sufficiently large buffer will be allocated using xmalloc and
1653 returned in *BUF_P containing the contents of the object.
1655 This method should be used for objects sufficiently small to store
1656 in a single xmalloc'd buffer, when no fixed bound on the object's
1657 size is known in advance. */
1658 extern LONGEST
target_fileio_read_alloc (const char *filename
,
1661 /* Read target file FILENAME. The result is NUL-terminated and
1662 returned as a string, allocated using xmalloc. If an error occurs
1663 or the transfer is unsupported, NULL is returned. Empty objects
1664 are returned as allocated but empty strings. A warning is issued
1665 if the result contains any embedded NUL bytes. */
1666 extern char *target_fileio_read_stralloc (const char *filename
);
1669 /* Tracepoint-related operations. */
1671 #define target_trace_init() \
1672 (*current_target.to_trace_init) ()
1674 #define target_download_tracepoint(t) \
1675 (*current_target.to_download_tracepoint) (t)
1677 #define target_can_download_tracepoint() \
1678 (*current_target.to_can_download_tracepoint) ()
1680 #define target_download_trace_state_variable(tsv) \
1681 (*current_target.to_download_trace_state_variable) (tsv)
1683 #define target_enable_tracepoint(loc) \
1684 (*current_target.to_enable_tracepoint) (loc)
1686 #define target_disable_tracepoint(loc) \
1687 (*current_target.to_disable_tracepoint) (loc)
1689 #define target_trace_start() \
1690 (*current_target.to_trace_start) ()
1692 #define target_trace_set_readonly_regions() \
1693 (*current_target.to_trace_set_readonly_regions) ()
1695 #define target_get_trace_status(ts) \
1696 (*current_target.to_get_trace_status) (ts)
1698 #define target_get_tracepoint_status(tp,utp) \
1699 (*current_target.to_get_tracepoint_status) (tp, utp)
1701 #define target_trace_stop() \
1702 (*current_target.to_trace_stop) ()
1704 #define target_trace_find(type,num,addr1,addr2,tpp) \
1705 (*current_target.to_trace_find) ((type), (num), (addr1), (addr2), (tpp))
1707 #define target_get_trace_state_variable_value(tsv,val) \
1708 (*current_target.to_get_trace_state_variable_value) ((tsv), (val))
1710 #define target_save_trace_data(filename) \
1711 (*current_target.to_save_trace_data) (filename)
1713 #define target_upload_tracepoints(utpp) \
1714 (*current_target.to_upload_tracepoints) (utpp)
1716 #define target_upload_trace_state_variables(utsvp) \
1717 (*current_target.to_upload_trace_state_variables) (utsvp)
1719 #define target_get_raw_trace_data(buf,offset,len) \
1720 (*current_target.to_get_raw_trace_data) ((buf), (offset), (len))
1722 #define target_get_min_fast_tracepoint_insn_len() \
1723 (*current_target.to_get_min_fast_tracepoint_insn_len) ()
1725 #define target_set_disconnected_tracing(val) \
1726 (*current_target.to_set_disconnected_tracing) (val)
1728 #define target_set_circular_trace_buffer(val) \
1729 (*current_target.to_set_circular_trace_buffer) (val)
1731 #define target_set_trace_buffer_size(val) \
1732 (*current_target.to_set_trace_buffer_size) (val)
1734 #define target_set_trace_notes(user,notes,stopnotes) \
1735 (*current_target.to_set_trace_notes) ((user), (notes), (stopnotes))
1737 #define target_get_tib_address(ptid, addr) \
1738 (*current_target.to_get_tib_address) ((ptid), (addr))
1740 #define target_set_permissions() \
1741 (*current_target.to_set_permissions) ()
1743 #define target_static_tracepoint_marker_at(addr, marker) \
1744 (*current_target.to_static_tracepoint_marker_at) (addr, marker)
1746 #define target_static_tracepoint_markers_by_strid(marker_id) \
1747 (*current_target.to_static_tracepoint_markers_by_strid) (marker_id)
1749 #define target_traceframe_info() \
1750 (*current_target.to_traceframe_info) ()
1752 #define target_use_agent(use) \
1753 (*current_target.to_use_agent) (use)
1755 #define target_can_use_agent() \
1756 (*current_target.to_can_use_agent) ()
1758 #define target_augmented_libraries_svr4_read() \
1759 (*current_target.to_augmented_libraries_svr4_read) ()
1761 /* Command logging facility. */
1763 #define target_log_command(p) \
1765 if (current_target.to_log_command) \
1766 (*current_target.to_log_command) (p); \
1770 extern int target_core_of_thread (ptid_t ptid
);
1772 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches
1773 the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0
1774 if there's a mismatch, and -1 if an error is encountered while
1775 reading memory. Throws an error if the functionality is found not
1776 to be supported by the current target. */
1777 int target_verify_memory (const gdb_byte
*data
,
1778 CORE_ADDR memaddr
, ULONGEST size
);
1780 /* Routines for maintenance of the target structures...
1782 complete_target_initialization: Finalize a target_ops by filling in
1783 any fields needed by the target implementation.
1785 add_target: Add a target to the list of all possible targets.
1787 push_target: Make this target the top of the stack of currently used
1788 targets, within its particular stratum of the stack. Result
1789 is 0 if now atop the stack, nonzero if not on top (maybe
1792 unpush_target: Remove this from the stack of currently used targets,
1793 no matter where it is on the list. Returns 0 if no
1794 change, 1 if removed from stack. */
1796 extern void add_target (struct target_ops
*);
1798 extern void add_target_with_completer (struct target_ops
*t
,
1799 completer_ftype
*completer
);
1801 extern void complete_target_initialization (struct target_ops
*t
);
1803 /* Adds a command ALIAS for target T and marks it deprecated. This is useful
1804 for maintaining backwards compatibility when renaming targets. */
1806 extern void add_deprecated_target_alias (struct target_ops
*t
, char *alias
);
1808 extern void push_target (struct target_ops
*);
1810 extern int unpush_target (struct target_ops
*);
1812 extern void target_pre_inferior (int);
1814 extern void target_preopen (int);
1816 /* Does whatever cleanup is required to get rid of all pushed targets. */
1817 extern void pop_all_targets (void);
1819 /* Like pop_all_targets, but pops only targets whose stratum is
1820 strictly above ABOVE_STRATUM. */
1821 extern void pop_all_targets_above (enum strata above_stratum
);
1823 extern int target_is_pushed (struct target_ops
*t
);
1825 extern CORE_ADDR
target_translate_tls_address (struct objfile
*objfile
,
1828 /* Struct target_section maps address ranges to file sections. It is
1829 mostly used with BFD files, but can be used without (e.g. for handling
1830 raw disks, or files not in formats handled by BFD). */
1832 struct target_section
1834 CORE_ADDR addr
; /* Lowest address in section */
1835 CORE_ADDR endaddr
; /* 1+highest address in section */
1837 struct bfd_section
*the_bfd_section
;
1839 /* The "owner" of the section.
1840 It can be any unique value. It is set by add_target_sections
1841 and used by remove_target_sections.
1842 For example, for executables it is a pointer to exec_bfd and
1843 for shlibs it is the so_list pointer. */
1847 /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */
1849 struct target_section_table
1851 struct target_section
*sections
;
1852 struct target_section
*sections_end
;
1855 /* Return the "section" containing the specified address. */
1856 struct target_section
*target_section_by_addr (struct target_ops
*target
,
1859 /* Return the target section table this target (or the targets
1860 beneath) currently manipulate. */
1862 extern struct target_section_table
*target_get_section_table
1863 (struct target_ops
*target
);
1865 /* From mem-break.c */
1867 extern int memory_remove_breakpoint (struct gdbarch
*,
1868 struct bp_target_info
*);
1870 extern int memory_insert_breakpoint (struct gdbarch
*,
1871 struct bp_target_info
*);
1873 extern int default_memory_remove_breakpoint (struct gdbarch
*,
1874 struct bp_target_info
*);
1876 extern int default_memory_insert_breakpoint (struct gdbarch
*,
1877 struct bp_target_info
*);
1882 extern void initialize_targets (void);
1884 extern void noprocess (void) ATTRIBUTE_NORETURN
;
1886 extern void target_require_runnable (void);
1888 extern void find_default_attach (struct target_ops
*, char *, int);
1890 extern void find_default_create_inferior (struct target_ops
*,
1891 char *, char *, char **, int);
1893 extern struct target_ops
*find_target_beneath (struct target_ops
*);
1895 /* Read OS data object of type TYPE from the target, and return it in
1896 XML format. The result is NUL-terminated and returned as a string,
1897 allocated using xmalloc. If an error occurs or the transfer is
1898 unsupported, NULL is returned. Empty objects are returned as
1899 allocated but empty strings. */
1901 extern char *target_get_osdata (const char *type
);
1904 /* Stuff that should be shared among the various remote targets. */
1906 /* Debugging level. 0 is off, and non-zero values mean to print some debug
1907 information (higher values, more information). */
1908 extern int remote_debug
;
1910 /* Speed in bits per second, or -1 which means don't mess with the speed. */
1911 extern int baud_rate
;
1912 /* Timeout limit for response from target. */
1913 extern int remote_timeout
;
1917 /* Set the show memory breakpoints mode to show, and installs a cleanup
1918 to restore it back to the current value. */
1919 extern struct cleanup
*make_show_memory_breakpoints_cleanup (int show
);
1921 extern int may_write_registers
;
1922 extern int may_write_memory
;
1923 extern int may_insert_breakpoints
;
1924 extern int may_insert_tracepoints
;
1925 extern int may_insert_fast_tracepoints
;
1926 extern int may_stop
;
1928 extern void update_target_permissions (void);
1931 /* Imported from machine dependent code. */
1933 /* Blank target vector entries are initialized to target_ignore. */
1934 void target_ignore (void);
1936 /* See to_supports_btrace in struct target_ops. */
1937 extern int target_supports_btrace (void);
1939 /* See to_enable_btrace in struct target_ops. */
1940 extern struct btrace_target_info
*target_enable_btrace (ptid_t ptid
);
1942 /* See to_disable_btrace in struct target_ops. */
1943 extern void target_disable_btrace (struct btrace_target_info
*btinfo
);
1945 /* See to_teardown_btrace in struct target_ops. */
1946 extern void target_teardown_btrace (struct btrace_target_info
*btinfo
);
1948 /* See to_read_btrace in struct target_ops. */
1949 extern VEC (btrace_block_s
) *target_read_btrace (struct btrace_target_info
*,
1950 enum btrace_read_type
);
1952 /* See to_stop_recording in struct target_ops. */
1953 extern void target_stop_recording (void);
1955 /* See to_info_record in struct target_ops. */
1956 extern void target_info_record (void);
1958 /* See to_save_record in struct target_ops. */
1959 extern void target_save_record (const char *filename
);
1961 /* Query if the target supports deleting the execution log. */
1962 extern int target_supports_delete_record (void);
1964 /* See to_delete_record in struct target_ops. */
1965 extern void target_delete_record (void);
1967 /* See to_record_is_replaying in struct target_ops. */
1968 extern int target_record_is_replaying (void);
1970 /* See to_goto_record_begin in struct target_ops. */
1971 extern void target_goto_record_begin (void);
1973 /* See to_goto_record_end in struct target_ops. */
1974 extern void target_goto_record_end (void);
1976 /* See to_goto_record in struct target_ops. */
1977 extern void target_goto_record (ULONGEST insn
);
1979 /* See to_insn_history. */
1980 extern void target_insn_history (int size
, int flags
);
1982 /* See to_insn_history_from. */
1983 extern void target_insn_history_from (ULONGEST from
, int size
, int flags
);
1985 /* See to_insn_history_range. */
1986 extern void target_insn_history_range (ULONGEST begin
, ULONGEST end
, int flags
);
1988 /* See to_call_history. */
1989 extern void target_call_history (int size
, int flags
);
1991 /* See to_call_history_from. */
1992 extern void target_call_history_from (ULONGEST begin
, int size
, int flags
);
1994 /* See to_call_history_range. */
1995 extern void target_call_history_range (ULONGEST begin
, ULONGEST end
, int flags
);
1997 #endif /* !defined (TARGET_H) */