1 /* Interface between GDB and target environments, including files and processes
3 Copyright (C) 1990-2015 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. */
46 /* This include file defines the interface between the main part
47 of the debugger, and the part which is target-specific, or
48 specific to the communications interface between us and the
51 A TARGET is an interface between the debugger and a particular
52 kind of file or process. Targets can be STACKED in STRATA,
53 so that more than one target can potentially respond to a request.
54 In particular, memory accesses will walk down the stack of targets
55 until they find a target that is interested in handling that particular
56 address. STRATA are artificial boundaries on the stack, within
57 which particular kinds of targets live. Strata exist so that
58 people don't get confused by pushing e.g. a process target and then
59 a file target, and wondering why they can't see the current values
60 of variables any more (the file target is handling them and they
61 never get to the process target). So when you push a file target,
62 it goes into the file stratum, which is always below the process
65 #include "target/target.h"
66 #include "target/resume.h"
67 #include "target/wait.h"
68 #include "target/waitstatus.h"
73 #include "gdb_signals.h"
77 #include "break-common.h" /* For enum target_hw_bp_type. */
81 dummy_stratum, /* The lowest of the low */
82 file_stratum, /* Executable files, etc */
83 process_stratum, /* Executing processes or core dump files */
84 thread_stratum, /* Executing threads */
85 record_stratum, /* Support record debugging */
86 arch_stratum /* Architecture overrides */
89 enum thread_control_capabilities
91 tc_none = 0, /* Default: can't control thread execution. */
92 tc_schedlock = 1, /* Can lock the thread scheduler. */
95 /* The structure below stores information about a system call.
96 It is basically used in the "catch syscall" command, and in
97 every function that gives information about a system call.
99 It's also good to mention that its fields represent everything
100 that we currently know about a syscall in GDB. */
103 /* The syscall number. */
106 /* The syscall name. */
110 /* Return a pretty printed form of target_waitstatus.
111 Space for the result is malloc'd, caller must free. */
112 extern char *target_waitstatus_to_string (const struct target_waitstatus *);
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 /* Enumeration of the kinds of traceframe searches that a target may
240 be able to perform. */
251 typedef struct static_tracepoint_marker *static_tracepoint_marker_p;
252 DEF_VEC_P(static_tracepoint_marker_p);
254 typedef enum target_xfer_status
255 target_xfer_partial_ftype (struct target_ops *ops,
256 enum target_object object,
259 const gdb_byte *writebuf,
262 ULONGEST *xfered_len);
264 enum target_xfer_status
265 raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf,
266 const gdb_byte *writebuf, ULONGEST memaddr,
267 LONGEST len, ULONGEST *xfered_len);
269 /* Request that OPS transfer up to LEN addressable units of the target's
270 OBJECT. When reading from a memory object, the size of an addressable unit
271 is architecture dependent and can be found using
272 gdbarch_addressable_memory_unit_size. Otherwise, an addressable unit is 1
273 byte long. BUF should point to a buffer large enough to hold the read data,
274 taking into account the addressable unit size. The OFFSET, for a seekable
275 object, specifies the starting point. The ANNEX can be used to provide
276 additional data-specific information to the target.
278 Return the number of addressable units actually transferred, or a negative
279 error code (an 'enum target_xfer_error' value) if the transfer is not
280 supported or otherwise fails. Return of a positive value less than
281 LEN indicates that no further transfer is possible. Unlike the raw
282 to_xfer_partial interface, callers of these functions do not need
283 to retry partial transfers. */
285 extern LONGEST target_read (struct target_ops *ops,
286 enum target_object object,
287 const char *annex, gdb_byte *buf,
288 ULONGEST offset, LONGEST len);
290 struct memory_read_result
292 /* First address that was read. */
294 /* Past-the-end address. */
299 typedef struct memory_read_result memory_read_result_s;
300 DEF_VEC_O(memory_read_result_s);
302 extern void free_memory_read_result_vector (void *);
304 extern VEC(memory_read_result_s)* read_memory_robust (struct target_ops *ops,
305 const ULONGEST offset,
308 /* Request that OPS transfer up to LEN addressable units from BUF to the
309 target's OBJECT. When writing to a memory object, the addressable unit
310 size is architecture dependent and can be found using
311 gdbarch_addressable_memory_unit_size. Otherwise, an addressable unit is 1
312 byte long. The OFFSET, for a seekable object, specifies the starting point.
313 The ANNEX can be used to provide additional data-specific information to
316 Return the number of addressable units actually transferred, or a negative
317 error code (an 'enum target_xfer_status' value) if the transfer is not
318 supported or otherwise fails. Return of a positive value less than
319 LEN indicates that no further transfer is possible. Unlike the raw
320 to_xfer_partial interface, callers of these functions do not need to
321 retry partial transfers. */
323 extern LONGEST target_write (struct target_ops *ops,
324 enum target_object object,
325 const char *annex, const gdb_byte *buf,
326 ULONGEST offset, LONGEST len);
328 /* Similar to target_write, except that it also calls PROGRESS with
329 the number of bytes written and the opaque BATON after every
330 successful partial write (and before the first write). This is
331 useful for progress reporting and user interaction while writing
332 data. To abort the transfer, the progress callback can throw an
335 LONGEST target_write_with_progress (struct target_ops *ops,
336 enum target_object object,
337 const char *annex, const gdb_byte *buf,
338 ULONGEST offset, LONGEST len,
339 void (*progress) (ULONGEST, void *),
342 /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will
343 be read using OPS. The return value will be -1 if the transfer
344 fails or is not supported; 0 if the object is empty; or the length
345 of the object otherwise. If a positive value is returned, a
346 sufficiently large buffer will be allocated using xmalloc and
347 returned in *BUF_P containing the contents of the object.
349 This method should be used for objects sufficiently small to store
350 in a single xmalloc'd buffer, when no fixed bound on the object's
351 size is known in advance. Don't try to read TARGET_OBJECT_MEMORY
352 through this function. */
354 extern LONGEST target_read_alloc (struct target_ops *ops,
355 enum target_object object,
356 const char *annex, gdb_byte **buf_p);
358 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
359 returned as a string, allocated using xmalloc. If an error occurs
360 or the transfer is unsupported, NULL is returned. Empty objects
361 are returned as allocated but empty strings. A warning is issued
362 if the result contains any embedded NUL bytes. */
364 extern char *target_read_stralloc (struct target_ops *ops,
365 enum target_object object,
368 /* See target_ops->to_xfer_partial. */
369 extern target_xfer_partial_ftype target_xfer_partial;
371 /* Wrappers to target read/write that perform memory transfers. They
372 throw an error if the memory transfer fails.
374 NOTE: cagney/2003-10-23: The naming schema is lifted from
375 "frame.h". The parameter order is lifted from get_frame_memory,
376 which in turn lifted it from read_memory. */
378 extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr,
379 gdb_byte *buf, LONGEST len);
380 extern ULONGEST get_target_memory_unsigned (struct target_ops *ops,
381 CORE_ADDR addr, int len,
382 enum bfd_endian byte_order);
384 struct thread_info; /* fwd decl for parameter list below: */
386 /* The type of the callback to the to_async method. */
388 typedef void async_callback_ftype (enum inferior_event_type event_type,
391 /* Normally target debug printing is purely type-based. However,
392 sometimes it is necessary to override the debug printing on a
393 per-argument basis. This macro can be used, attribute-style, to
394 name the target debug printing function for a particular method
395 argument. FUNC is the name of the function. The macro's
396 definition is empty because it is only used by the
397 make-target-delegates script. */
399 #define TARGET_DEBUG_PRINTER(FUNC)
401 /* These defines are used to mark target_ops methods. The script
402 make-target-delegates scans these and auto-generates the base
403 method implementations. There are four macros that can be used:
405 1. TARGET_DEFAULT_IGNORE. There is no argument. The base method
406 does nothing. This is only valid if the method return type is
409 2. TARGET_DEFAULT_NORETURN. The argument is a function call, like
410 'tcomplain ()'. The base method simply makes this call, which is
411 assumed not to return.
413 3. TARGET_DEFAULT_RETURN. The argument is a C expression. The
414 base method returns this expression's value.
416 4. TARGET_DEFAULT_FUNC. The argument is the name of a function.
417 make-target-delegates does not generate a base method in this case,
418 but instead uses the argument function as the base method. */
420 #define TARGET_DEFAULT_IGNORE()
421 #define TARGET_DEFAULT_NORETURN(ARG)
422 #define TARGET_DEFAULT_RETURN(ARG)
423 #define TARGET_DEFAULT_FUNC(ARG)
427 struct target_ops *beneath; /* To the target under this one. */
428 const char *to_shortname; /* Name this target type */
429 const char *to_longname; /* Name for printing */
430 const char *to_doc; /* Documentation. Does not include trailing
431 newline, and starts with a one-line descrip-
432 tion (probably similar to to_longname). */
433 /* Per-target scratch pad. */
435 /* The open routine takes the rest of the parameters from the
436 command, and (if successful) pushes a new target onto the
437 stack. Targets should supply this routine, if only to provide
439 void (*to_open) (const char *, int);
440 /* Old targets with a static target vector provide "to_close".
441 New re-entrant targets provide "to_xclose" and that is expected
442 to xfree everything (including the "struct target_ops"). */
443 void (*to_xclose) (struct target_ops *targ);
444 void (*to_close) (struct target_ops *);
445 /* Attaches to a process on the target side. Arguments are as
446 passed to the `attach' command by the user. This routine can
447 be called when the target is not on the target-stack, if the
448 target_can_run routine returns 1; in that case, it must push
449 itself onto the stack. Upon exit, the target should be ready
450 for normal operations, and should be ready to deliver the
451 status of the process immediately (without waiting) to an
452 upcoming target_wait call. */
453 void (*to_attach) (struct target_ops *ops, const char *, int);
454 void (*to_post_attach) (struct target_ops *, int)
455 TARGET_DEFAULT_IGNORE ();
456 void (*to_detach) (struct target_ops *ops, const char *, int)
457 TARGET_DEFAULT_IGNORE ();
458 void (*to_disconnect) (struct target_ops *, const char *, int)
459 TARGET_DEFAULT_NORETURN (tcomplain ());
460 void (*to_resume) (struct target_ops *, ptid_t,
461 int TARGET_DEBUG_PRINTER (target_debug_print_step),
463 TARGET_DEFAULT_NORETURN (noprocess ());
464 ptid_t (*to_wait) (struct target_ops *,
465 ptid_t, struct target_waitstatus *,
466 int TARGET_DEBUG_PRINTER (target_debug_print_options))
467 TARGET_DEFAULT_FUNC (default_target_wait);
468 void (*to_fetch_registers) (struct target_ops *, struct regcache *, int)
469 TARGET_DEFAULT_IGNORE ();
470 void (*to_store_registers) (struct target_ops *, struct regcache *, int)
471 TARGET_DEFAULT_NORETURN (noprocess ());
472 void (*to_prepare_to_store) (struct target_ops *, struct regcache *)
473 TARGET_DEFAULT_NORETURN (noprocess ());
475 void (*to_files_info) (struct target_ops *)
476 TARGET_DEFAULT_IGNORE ();
477 int (*to_insert_breakpoint) (struct target_ops *, struct gdbarch *,
478 struct bp_target_info *)
479 TARGET_DEFAULT_FUNC (memory_insert_breakpoint);
480 int (*to_remove_breakpoint) (struct target_ops *, struct gdbarch *,
481 struct bp_target_info *)
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, int)
535 TARGET_DEFAULT_RETURN (1);
536 int (*to_remove_mask_watchpoint) (struct target_ops *,
537 CORE_ADDR, CORE_ADDR, int)
538 TARGET_DEFAULT_RETURN (1);
539 int (*to_stopped_by_watchpoint) (struct target_ops *)
540 TARGET_DEFAULT_RETURN (0);
541 int to_have_steppable_watchpoint;
542 int to_have_continuable_watchpoint;
543 int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *)
544 TARGET_DEFAULT_RETURN (0);
545 int (*to_watchpoint_addr_within_range) (struct target_ops *,
546 CORE_ADDR, CORE_ADDR, int)
547 TARGET_DEFAULT_FUNC (default_watchpoint_addr_within_range);
549 /* Documentation of this routine is provided with the corresponding
551 int (*to_region_ok_for_hw_watchpoint) (struct target_ops *,
553 TARGET_DEFAULT_FUNC (default_region_ok_for_hw_watchpoint);
555 int (*to_can_accel_watchpoint_condition) (struct target_ops *,
558 TARGET_DEFAULT_RETURN (0);
559 int (*to_masked_watch_num_registers) (struct target_ops *,
560 CORE_ADDR, CORE_ADDR)
561 TARGET_DEFAULT_RETURN (-1);
563 /* Return 1 for sure target can do single step. Return -1 for
564 unknown. Return 0 for target can't do. */
565 int (*to_can_do_single_step) (struct target_ops *)
566 TARGET_DEFAULT_RETURN (-1);
568 void (*to_terminal_init) (struct target_ops *)
569 TARGET_DEFAULT_IGNORE ();
570 void (*to_terminal_inferior) (struct target_ops *)
571 TARGET_DEFAULT_IGNORE ();
572 void (*to_terminal_ours_for_output) (struct target_ops *)
573 TARGET_DEFAULT_IGNORE ();
574 void (*to_terminal_ours) (struct target_ops *)
575 TARGET_DEFAULT_IGNORE ();
576 void (*to_terminal_info) (struct target_ops *, const char *, int)
577 TARGET_DEFAULT_FUNC (default_terminal_info);
578 void (*to_kill) (struct target_ops *)
579 TARGET_DEFAULT_NORETURN (noprocess ());
580 void (*to_load) (struct target_ops *, const char *, int)
581 TARGET_DEFAULT_NORETURN (tcomplain ());
582 /* Start an inferior process and set inferior_ptid to its pid.
583 EXEC_FILE is the file to run.
584 ALLARGS is a string containing the arguments to the program.
585 ENV is the environment vector to pass. Errors reported with error().
586 On VxWorks and various standalone systems, we ignore exec_file. */
587 void (*to_create_inferior) (struct target_ops *,
588 char *, char *, char **, int);
589 void (*to_post_startup_inferior) (struct target_ops *, ptid_t)
590 TARGET_DEFAULT_IGNORE ();
591 int (*to_insert_fork_catchpoint) (struct target_ops *, int)
592 TARGET_DEFAULT_RETURN (1);
593 int (*to_remove_fork_catchpoint) (struct target_ops *, int)
594 TARGET_DEFAULT_RETURN (1);
595 int (*to_insert_vfork_catchpoint) (struct target_ops *, int)
596 TARGET_DEFAULT_RETURN (1);
597 int (*to_remove_vfork_catchpoint) (struct target_ops *, int)
598 TARGET_DEFAULT_RETURN (1);
599 int (*to_follow_fork) (struct target_ops *, int, int)
600 TARGET_DEFAULT_FUNC (default_follow_fork);
601 int (*to_insert_exec_catchpoint) (struct target_ops *, int)
602 TARGET_DEFAULT_RETURN (1);
603 int (*to_remove_exec_catchpoint) (struct target_ops *, int)
604 TARGET_DEFAULT_RETURN (1);
605 void (*to_follow_exec) (struct target_ops *, struct inferior *, char *)
606 TARGET_DEFAULT_IGNORE ();
607 int (*to_set_syscall_catchpoint) (struct target_ops *,
608 int, int, int, int, int *)
609 TARGET_DEFAULT_RETURN (1);
610 int (*to_has_exited) (struct target_ops *, int, int, int *)
611 TARGET_DEFAULT_RETURN (0);
612 void (*to_mourn_inferior) (struct target_ops *)
613 TARGET_DEFAULT_FUNC (default_mourn_inferior);
614 /* Note that to_can_run is special and can be invoked on an
615 unpushed target. Targets defining this method must also define
616 to_can_async_p and to_supports_non_stop. */
617 int (*to_can_run) (struct target_ops *)
618 TARGET_DEFAULT_RETURN (0);
620 /* Documentation of this routine is provided with the corresponding
622 void (*to_pass_signals) (struct target_ops *, int,
623 unsigned char * TARGET_DEBUG_PRINTER (target_debug_print_signals))
624 TARGET_DEFAULT_IGNORE ();
626 /* Documentation of this routine is provided with the
627 corresponding target_* function. */
628 void (*to_program_signals) (struct target_ops *, int,
629 unsigned char * TARGET_DEBUG_PRINTER (target_debug_print_signals))
630 TARGET_DEFAULT_IGNORE ();
632 int (*to_thread_alive) (struct target_ops *, ptid_t ptid)
633 TARGET_DEFAULT_RETURN (0);
634 void (*to_update_thread_list) (struct target_ops *)
635 TARGET_DEFAULT_IGNORE ();
636 char *(*to_pid_to_str) (struct target_ops *, ptid_t)
637 TARGET_DEFAULT_FUNC (default_pid_to_str);
638 char *(*to_extra_thread_info) (struct target_ops *, struct thread_info *)
639 TARGET_DEFAULT_RETURN (NULL);
640 char *(*to_thread_name) (struct target_ops *, struct thread_info *)
641 TARGET_DEFAULT_RETURN (NULL);
642 void (*to_stop) (struct target_ops *, ptid_t)
643 TARGET_DEFAULT_IGNORE ();
644 void (*to_interrupt) (struct target_ops *, ptid_t)
645 TARGET_DEFAULT_IGNORE ();
646 void (*to_check_pending_interrupt) (struct target_ops *)
647 TARGET_DEFAULT_IGNORE ();
648 void (*to_rcmd) (struct target_ops *,
649 const char *command, struct ui_file *output)
650 TARGET_DEFAULT_FUNC (default_rcmd);
651 char *(*to_pid_to_exec_file) (struct target_ops *, int pid)
652 TARGET_DEFAULT_RETURN (NULL);
653 void (*to_log_command) (struct target_ops *, const char *)
654 TARGET_DEFAULT_IGNORE ();
655 struct target_section_table *(*to_get_section_table) (struct target_ops *)
656 TARGET_DEFAULT_RETURN (NULL);
657 enum strata to_stratum;
658 int (*to_has_all_memory) (struct target_ops *);
659 int (*to_has_memory) (struct target_ops *);
660 int (*to_has_stack) (struct target_ops *);
661 int (*to_has_registers) (struct target_ops *);
662 int (*to_has_execution) (struct target_ops *, ptid_t);
663 int to_has_thread_control; /* control thread execution */
664 int to_attach_no_wait;
665 /* This method must be implemented in some situations. See the
666 comment on 'to_can_run'. */
667 int (*to_can_async_p) (struct target_ops *)
668 TARGET_DEFAULT_RETURN (0);
669 int (*to_is_async_p) (struct target_ops *)
670 TARGET_DEFAULT_RETURN (0);
671 void (*to_async) (struct target_ops *, int)
672 TARGET_DEFAULT_NORETURN (tcomplain ());
673 /* This method must be implemented in some situations. See the
674 comment on 'to_can_run'. */
675 int (*to_supports_non_stop) (struct target_ops *)
676 TARGET_DEFAULT_RETURN (0);
677 /* Return true if the target operates in non-stop mode even with
678 "set non-stop off". */
679 int (*to_always_non_stop_p) (struct target_ops *)
680 TARGET_DEFAULT_RETURN (0);
681 /* find_memory_regions support method for gcore */
682 int (*to_find_memory_regions) (struct target_ops *,
683 find_memory_region_ftype func, void *data)
684 TARGET_DEFAULT_FUNC (dummy_find_memory_regions);
685 /* make_corefile_notes support method for gcore */
686 char * (*to_make_corefile_notes) (struct target_ops *, bfd *, int *)
687 TARGET_DEFAULT_FUNC (dummy_make_corefile_notes);
688 /* get_bookmark support method for bookmarks */
689 gdb_byte * (*to_get_bookmark) (struct target_ops *, const char *, int)
690 TARGET_DEFAULT_NORETURN (tcomplain ());
691 /* goto_bookmark support method for bookmarks */
692 void (*to_goto_bookmark) (struct target_ops *, const gdb_byte *, int)
693 TARGET_DEFAULT_NORETURN (tcomplain ());
694 /* Return the thread-local address at OFFSET in the
695 thread-local storage for the thread PTID and the shared library
696 or executable file given by OBJFILE. If that block of
697 thread-local storage hasn't been allocated yet, this function
698 may return an error. LOAD_MODULE_ADDR may be zero for statically
699 linked multithreaded inferiors. */
700 CORE_ADDR (*to_get_thread_local_address) (struct target_ops *ops,
702 CORE_ADDR load_module_addr,
704 TARGET_DEFAULT_NORETURN (generic_tls_error ());
706 /* Request that OPS transfer up to LEN 8-bit bytes of the target's
707 OBJECT. The OFFSET, for a seekable object, specifies the
708 starting point. The ANNEX can be used to provide additional
709 data-specific information to the target.
711 Return the transferred status, error or OK (an
712 'enum target_xfer_status' value). Save the number of bytes
713 actually transferred in *XFERED_LEN if transfer is successful
714 (TARGET_XFER_OK) or the number unavailable bytes if the requested
715 data is unavailable (TARGET_XFER_UNAVAILABLE). *XFERED_LEN
716 smaller than LEN does not indicate the end of the object, only
717 the end of the transfer; higher level code should continue
718 transferring if desired. This is handled in target.c.
720 The interface does not support a "retry" mechanism. Instead it
721 assumes that at least one byte will be transfered on each
724 NOTE: cagney/2003-10-17: The current interface can lead to
725 fragmented transfers. Lower target levels should not implement
726 hacks, such as enlarging the transfer, in an attempt to
727 compensate for this. Instead, the target stack should be
728 extended so that it implements supply/collect methods and a
729 look-aside object cache. With that available, the lowest
730 target can safely and freely "push" data up the stack.
732 See target_read and target_write for more information. One,
733 and only one, of readbuf or writebuf must be non-NULL. */
735 enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
736 enum target_object object,
739 const gdb_byte *writebuf,
740 ULONGEST offset, ULONGEST len,
741 ULONGEST *xfered_len)
742 TARGET_DEFAULT_RETURN (TARGET_XFER_E_IO);
744 /* Returns the memory map for the target. A return value of NULL
745 means that no memory map is available. If a memory address
746 does not fall within any returned regions, it's assumed to be
747 RAM. The returned memory regions should not overlap.
749 The order of regions does not matter; target_memory_map will
750 sort regions by starting address. For that reason, this
751 function should not be called directly except via
754 This method should not cache data; if the memory map could
755 change unexpectedly, it should be invalidated, and higher
756 layers will re-fetch it. */
757 VEC(mem_region_s) *(*to_memory_map) (struct target_ops *)
758 TARGET_DEFAULT_RETURN (NULL);
760 /* Erases the region of flash memory starting at ADDRESS, of
763 Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned
764 on flash block boundaries, as reported by 'to_memory_map'. */
765 void (*to_flash_erase) (struct target_ops *,
766 ULONGEST address, LONGEST length)
767 TARGET_DEFAULT_NORETURN (tcomplain ());
769 /* Finishes a flash memory write sequence. After this operation
770 all flash memory should be available for writing and the result
771 of reading from areas written by 'to_flash_write' should be
772 equal to what was written. */
773 void (*to_flash_done) (struct target_ops *)
774 TARGET_DEFAULT_NORETURN (tcomplain ());
776 /* Describe the architecture-specific features of this target. If
777 OPS doesn't have a description, this should delegate to the
778 "beneath" target. Returns the description found, or NULL if no
779 description was available. */
780 const struct target_desc *(*to_read_description) (struct target_ops *ops)
781 TARGET_DEFAULT_RETURN (NULL);
783 /* Build the PTID of the thread on which a given task is running,
784 based on LWP and THREAD. These values are extracted from the
785 task Private_Data section of the Ada Task Control Block, and
786 their interpretation depends on the target. */
787 ptid_t (*to_get_ada_task_ptid) (struct target_ops *,
788 long lwp, long thread)
789 TARGET_DEFAULT_FUNC (default_get_ada_task_ptid);
791 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
792 Return 0 if *READPTR is already at the end of the buffer.
793 Return -1 if there is insufficient buffer for a whole entry.
794 Return 1 if an entry was read into *TYPEP and *VALP. */
795 int (*to_auxv_parse) (struct target_ops *ops, gdb_byte **readptr,
796 gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp)
797 TARGET_DEFAULT_FUNC (default_auxv_parse);
799 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
800 sequence of bytes in PATTERN with length PATTERN_LEN.
802 The result is 1 if found, 0 if not found, and -1 if there was an error
803 requiring halting of the search (e.g. memory read error).
804 If the pattern is found the address is recorded in FOUND_ADDRP. */
805 int (*to_search_memory) (struct target_ops *ops,
806 CORE_ADDR start_addr, ULONGEST search_space_len,
807 const gdb_byte *pattern, ULONGEST pattern_len,
808 CORE_ADDR *found_addrp)
809 TARGET_DEFAULT_FUNC (default_search_memory);
811 /* Can target execute in reverse? */
812 int (*to_can_execute_reverse) (struct target_ops *)
813 TARGET_DEFAULT_RETURN (0);
815 /* The direction the target is currently executing. Must be
816 implemented on targets that support reverse execution and async
817 mode. The default simply returns forward execution. */
818 enum exec_direction_kind (*to_execution_direction) (struct target_ops *)
819 TARGET_DEFAULT_FUNC (default_execution_direction);
821 /* Does this target support debugging multiple processes
823 int (*to_supports_multi_process) (struct target_ops *)
824 TARGET_DEFAULT_RETURN (0);
826 /* Does this target support enabling and disabling tracepoints while a trace
827 experiment is running? */
828 int (*to_supports_enable_disable_tracepoint) (struct target_ops *)
829 TARGET_DEFAULT_RETURN (0);
831 /* Does this target support disabling address space randomization? */
832 int (*to_supports_disable_randomization) (struct target_ops *);
834 /* Does this target support the tracenz bytecode for string collection? */
835 int (*to_supports_string_tracing) (struct target_ops *)
836 TARGET_DEFAULT_RETURN (0);
838 /* Does this target support evaluation of breakpoint conditions on its
840 int (*to_supports_evaluation_of_breakpoint_conditions) (struct target_ops *)
841 TARGET_DEFAULT_RETURN (0);
843 /* Does this target support evaluation of breakpoint commands on its
845 int (*to_can_run_breakpoint_commands) (struct target_ops *)
846 TARGET_DEFAULT_RETURN (0);
848 /* Determine current architecture of thread PTID.
850 The target is supposed to determine the architecture of the code where
851 the target is currently stopped at (on Cell, if a target is in spu_run,
852 to_thread_architecture would return SPU, otherwise PPC32 or PPC64).
853 This is architecture used to perform decr_pc_after_break adjustment,
854 and also determines the frame architecture of the innermost frame.
855 ptrace operations need to operate according to target_gdbarch ().
857 The default implementation always returns target_gdbarch (). */
858 struct gdbarch *(*to_thread_architecture) (struct target_ops *, ptid_t)
859 TARGET_DEFAULT_FUNC (default_thread_architecture);
861 /* Determine current address space of thread PTID.
863 The default implementation always returns the inferior's
865 struct address_space *(*to_thread_address_space) (struct target_ops *,
867 TARGET_DEFAULT_FUNC (default_thread_address_space);
869 /* Target file operations. */
871 /* Return nonzero if the filesystem seen by the current inferior
872 is the local filesystem, zero otherwise. */
873 int (*to_filesystem_is_local) (struct target_ops *)
874 TARGET_DEFAULT_RETURN (1);
876 /* Open FILENAME on the target, in the filesystem as seen by INF,
877 using FLAGS and MODE. If INF is NULL, use the filesystem seen
878 by the debugger (GDB or, for remote targets, the remote stub).
879 If WARN_IF_SLOW is nonzero, print a warning message if the file
880 is being accessed over a link that may be slow. Return a
881 target file descriptor, or -1 if an error occurs (and set
883 int (*to_fileio_open) (struct target_ops *,
884 struct inferior *inf, const char *filename,
885 int flags, int mode, int warn_if_slow,
888 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
889 Return the number of bytes written, or -1 if an error occurs
890 (and set *TARGET_ERRNO). */
891 int (*to_fileio_pwrite) (struct target_ops *,
892 int fd, const gdb_byte *write_buf, int len,
893 ULONGEST offset, int *target_errno);
895 /* Read up to LEN bytes FD on the target into READ_BUF.
896 Return the number of bytes read, or -1 if an error occurs
897 (and set *TARGET_ERRNO). */
898 int (*to_fileio_pread) (struct target_ops *,
899 int fd, gdb_byte *read_buf, int len,
900 ULONGEST offset, int *target_errno);
902 /* Get information about the file opened as FD and put it in
903 SB. Return 0 on success, or -1 if an error occurs (and set
905 int (*to_fileio_fstat) (struct target_ops *,
906 int fd, struct stat *sb, int *target_errno);
908 /* Close FD on the target. Return 0, or -1 if an error occurs
909 (and set *TARGET_ERRNO). */
910 int (*to_fileio_close) (struct target_ops *, int fd, int *target_errno);
912 /* Unlink FILENAME on the target, in the filesystem as seen by
913 INF. If INF is NULL, use the filesystem seen by the debugger
914 (GDB or, for remote targets, the remote stub). Return 0, or
915 -1 if an error occurs (and set *TARGET_ERRNO). */
916 int (*to_fileio_unlink) (struct target_ops *,
917 struct inferior *inf,
918 const char *filename,
921 /* Read value of symbolic link FILENAME on the target, in the
922 filesystem as seen by INF. If INF is NULL, use the filesystem
923 seen by the debugger (GDB or, for remote targets, the remote
924 stub). Return a null-terminated string allocated via xmalloc,
925 or NULL if an error occurs (and set *TARGET_ERRNO). */
926 char *(*to_fileio_readlink) (struct target_ops *,
927 struct inferior *inf,
928 const char *filename,
932 /* Implement the "info proc" command. */
933 void (*to_info_proc) (struct target_ops *, const char *,
934 enum info_proc_what);
936 /* Tracepoint-related operations. */
938 /* Prepare the target for a tracing run. */
939 void (*to_trace_init) (struct target_ops *)
940 TARGET_DEFAULT_NORETURN (tcomplain ());
942 /* Send full details of a tracepoint location to the target. */
943 void (*to_download_tracepoint) (struct target_ops *,
944 struct bp_location *location)
945 TARGET_DEFAULT_NORETURN (tcomplain ());
947 /* Is the target able to download tracepoint locations in current
949 int (*to_can_download_tracepoint) (struct target_ops *)
950 TARGET_DEFAULT_RETURN (0);
952 /* Send full details of a trace state variable to the target. */
953 void (*to_download_trace_state_variable) (struct target_ops *,
954 struct trace_state_variable *tsv)
955 TARGET_DEFAULT_NORETURN (tcomplain ());
957 /* Enable a tracepoint on the target. */
958 void (*to_enable_tracepoint) (struct target_ops *,
959 struct bp_location *location)
960 TARGET_DEFAULT_NORETURN (tcomplain ());
962 /* Disable a tracepoint on the target. */
963 void (*to_disable_tracepoint) (struct target_ops *,
964 struct bp_location *location)
965 TARGET_DEFAULT_NORETURN (tcomplain ());
967 /* Inform the target info of memory regions that are readonly
968 (such as text sections), and so it should return data from
969 those rather than look in the trace buffer. */
970 void (*to_trace_set_readonly_regions) (struct target_ops *)
971 TARGET_DEFAULT_NORETURN (tcomplain ());
973 /* Start a trace run. */
974 void (*to_trace_start) (struct target_ops *)
975 TARGET_DEFAULT_NORETURN (tcomplain ());
977 /* Get the current status of a tracing run. */
978 int (*to_get_trace_status) (struct target_ops *, struct trace_status *ts)
979 TARGET_DEFAULT_RETURN (-1);
981 void (*to_get_tracepoint_status) (struct target_ops *,
982 struct breakpoint *tp,
983 struct uploaded_tp *utp)
984 TARGET_DEFAULT_NORETURN (tcomplain ());
986 /* Stop a trace run. */
987 void (*to_trace_stop) (struct target_ops *)
988 TARGET_DEFAULT_NORETURN (tcomplain ());
990 /* Ask the target to find a trace frame of the given type TYPE,
991 using NUM, ADDR1, and ADDR2 as search parameters. Returns the
992 number of the trace frame, and also the tracepoint number at
993 TPP. If no trace frame matches, return -1. May throw if the
995 int (*to_trace_find) (struct target_ops *,
996 enum trace_find_type type, int num,
997 CORE_ADDR addr1, CORE_ADDR addr2, int *tpp)
998 TARGET_DEFAULT_RETURN (-1);
1000 /* Get the value of the trace state variable number TSV, returning
1001 1 if the value is known and writing the value itself into the
1002 location pointed to by VAL, else returning 0. */
1003 int (*to_get_trace_state_variable_value) (struct target_ops *,
1004 int tsv, LONGEST *val)
1005 TARGET_DEFAULT_RETURN (0);
1007 int (*to_save_trace_data) (struct target_ops *, const char *filename)
1008 TARGET_DEFAULT_NORETURN (tcomplain ());
1010 int (*to_upload_tracepoints) (struct target_ops *,
1011 struct uploaded_tp **utpp)
1012 TARGET_DEFAULT_RETURN (0);
1014 int (*to_upload_trace_state_variables) (struct target_ops *,
1015 struct uploaded_tsv **utsvp)
1016 TARGET_DEFAULT_RETURN (0);
1018 LONGEST (*to_get_raw_trace_data) (struct target_ops *, gdb_byte *buf,
1019 ULONGEST offset, LONGEST len)
1020 TARGET_DEFAULT_NORETURN (tcomplain ());
1022 /* Get the minimum length of instruction on which a fast tracepoint
1023 may be set on the target. If this operation is unsupported,
1024 return -1. If for some reason the minimum length cannot be
1025 determined, return 0. */
1026 int (*to_get_min_fast_tracepoint_insn_len) (struct target_ops *)
1027 TARGET_DEFAULT_RETURN (-1);
1029 /* Set the target's tracing behavior in response to unexpected
1030 disconnection - set VAL to 1 to keep tracing, 0 to stop. */
1031 void (*to_set_disconnected_tracing) (struct target_ops *, int val)
1032 TARGET_DEFAULT_IGNORE ();
1033 void (*to_set_circular_trace_buffer) (struct target_ops *, int val)
1034 TARGET_DEFAULT_IGNORE ();
1035 /* Set the size of trace buffer in the target. */
1036 void (*to_set_trace_buffer_size) (struct target_ops *, LONGEST val)
1037 TARGET_DEFAULT_IGNORE ();
1039 /* Add/change textual notes about the trace run, returning 1 if
1040 successful, 0 otherwise. */
1041 int (*to_set_trace_notes) (struct target_ops *,
1042 const char *user, const char *notes,
1043 const char *stopnotes)
1044 TARGET_DEFAULT_RETURN (0);
1046 /* Return the processor core that thread PTID was last seen on.
1047 This information is updated only when:
1048 - update_thread_list is called
1050 If the core cannot be determined -- either for the specified
1051 thread, or right now, or in this debug session, or for this
1052 target -- return -1. */
1053 int (*to_core_of_thread) (struct target_ops *, ptid_t ptid)
1054 TARGET_DEFAULT_RETURN (-1);
1056 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range
1057 matches the contents of [DATA,DATA+SIZE). Returns 1 if there's
1058 a match, 0 if there's a mismatch, and -1 if an error is
1059 encountered while reading memory. */
1060 int (*to_verify_memory) (struct target_ops *, const gdb_byte *data,
1061 CORE_ADDR memaddr, ULONGEST size)
1062 TARGET_DEFAULT_FUNC (default_verify_memory);
1064 /* Return the address of the start of the Thread Information Block
1065 a Windows OS specific feature. */
1066 int (*to_get_tib_address) (struct target_ops *,
1067 ptid_t ptid, CORE_ADDR *addr)
1068 TARGET_DEFAULT_NORETURN (tcomplain ());
1070 /* Send the new settings of write permission variables. */
1071 void (*to_set_permissions) (struct target_ops *)
1072 TARGET_DEFAULT_IGNORE ();
1074 /* Look for a static tracepoint marker at ADDR, and fill in MARKER
1075 with its details. Return 1 on success, 0 on failure. */
1076 int (*to_static_tracepoint_marker_at) (struct target_ops *, CORE_ADDR,
1077 struct static_tracepoint_marker *marker)
1078 TARGET_DEFAULT_RETURN (0);
1080 /* Return a vector of all tracepoints markers string id ID, or all
1081 markers if ID is NULL. */
1082 VEC(static_tracepoint_marker_p) *(*to_static_tracepoint_markers_by_strid) (struct target_ops *, const char *id)
1083 TARGET_DEFAULT_NORETURN (tcomplain ());
1085 /* Return a traceframe info object describing the current
1086 traceframe's contents. This method should not cache data;
1087 higher layers take care of caching, invalidating, and
1088 re-fetching when necessary. */
1089 struct traceframe_info *(*to_traceframe_info) (struct target_ops *)
1090 TARGET_DEFAULT_NORETURN (tcomplain ());
1092 /* Ask the target to use or not to use agent according to USE. Return 1
1093 successful, 0 otherwise. */
1094 int (*to_use_agent) (struct target_ops *, int use)
1095 TARGET_DEFAULT_NORETURN (tcomplain ());
1097 /* Is the target able to use agent in current state? */
1098 int (*to_can_use_agent) (struct target_ops *)
1099 TARGET_DEFAULT_RETURN (0);
1101 /* Check whether the target supports branch tracing. */
1102 int (*to_supports_btrace) (struct target_ops *, enum btrace_format)
1103 TARGET_DEFAULT_RETURN (0);
1105 /* Enable branch tracing for PTID using CONF configuration.
1106 Return a branch trace target information struct for reading and for
1107 disabling branch trace. */
1108 struct btrace_target_info *(*to_enable_btrace) (struct target_ops *,
1110 const struct btrace_config *conf)
1111 TARGET_DEFAULT_NORETURN (tcomplain ());
1113 /* Disable branch tracing and deallocate TINFO. */
1114 void (*to_disable_btrace) (struct target_ops *,
1115 struct btrace_target_info *tinfo)
1116 TARGET_DEFAULT_NORETURN (tcomplain ());
1118 /* Disable branch tracing and deallocate TINFO. This function is similar
1119 to to_disable_btrace, except that it is called during teardown and is
1120 only allowed to perform actions that are safe. A counter-example would
1121 be attempting to talk to a remote target. */
1122 void (*to_teardown_btrace) (struct target_ops *,
1123 struct btrace_target_info *tinfo)
1124 TARGET_DEFAULT_NORETURN (tcomplain ());
1126 /* Read branch trace data for the thread indicated by BTINFO into DATA.
1127 DATA is cleared before new trace is added. */
1128 enum btrace_error (*to_read_btrace) (struct target_ops *self,
1129 struct btrace_data *data,
1130 struct btrace_target_info *btinfo,
1131 enum btrace_read_type type)
1132 TARGET_DEFAULT_NORETURN (tcomplain ());
1134 /* Get the branch trace configuration. */
1135 const struct btrace_config *(*to_btrace_conf) (struct target_ops *self,
1136 const struct btrace_target_info *)
1137 TARGET_DEFAULT_RETURN (NULL);
1139 /* Stop trace recording. */
1140 void (*to_stop_recording) (struct target_ops *)
1141 TARGET_DEFAULT_IGNORE ();
1143 /* Print information about the recording. */
1144 void (*to_info_record) (struct target_ops *)
1145 TARGET_DEFAULT_IGNORE ();
1147 /* Save the recorded execution trace into a file. */
1148 void (*to_save_record) (struct target_ops *, const char *filename)
1149 TARGET_DEFAULT_NORETURN (tcomplain ());
1151 /* Delete the recorded execution trace from the current position
1153 void (*to_delete_record) (struct target_ops *)
1154 TARGET_DEFAULT_NORETURN (tcomplain ());
1156 /* Query if the record target is currently replaying PTID. */
1157 int (*to_record_is_replaying) (struct target_ops *, ptid_t ptid)
1158 TARGET_DEFAULT_RETURN (0);
1160 /* Stop replaying. */
1161 void (*to_record_stop_replaying) (struct target_ops *)
1162 TARGET_DEFAULT_IGNORE ();
1164 /* Go to the begin of the execution trace. */
1165 void (*to_goto_record_begin) (struct target_ops *)
1166 TARGET_DEFAULT_NORETURN (tcomplain ());
1168 /* Go to the end of the execution trace. */
1169 void (*to_goto_record_end) (struct target_ops *)
1170 TARGET_DEFAULT_NORETURN (tcomplain ());
1172 /* Go to a specific location in the recorded execution trace. */
1173 void (*to_goto_record) (struct target_ops *, ULONGEST insn)
1174 TARGET_DEFAULT_NORETURN (tcomplain ());
1176 /* Disassemble SIZE instructions in the recorded execution trace from
1177 the current position.
1178 If SIZE < 0, disassemble abs (SIZE) preceding instructions; otherwise,
1179 disassemble SIZE succeeding instructions. */
1180 void (*to_insn_history) (struct target_ops *, int size, int flags)
1181 TARGET_DEFAULT_NORETURN (tcomplain ());
1183 /* Disassemble SIZE instructions in the recorded execution trace around
1185 If SIZE < 0, disassemble abs (SIZE) instructions before FROM; otherwise,
1186 disassemble SIZE instructions after FROM. */
1187 void (*to_insn_history_from) (struct target_ops *,
1188 ULONGEST from, int size, int flags)
1189 TARGET_DEFAULT_NORETURN (tcomplain ());
1191 /* Disassemble a section of the recorded execution trace from instruction
1192 BEGIN (inclusive) to instruction END (inclusive). */
1193 void (*to_insn_history_range) (struct target_ops *,
1194 ULONGEST begin, ULONGEST end, int flags)
1195 TARGET_DEFAULT_NORETURN (tcomplain ());
1197 /* Print a function trace of the recorded execution trace.
1198 If SIZE < 0, print abs (SIZE) preceding functions; otherwise, print SIZE
1199 succeeding functions. */
1200 void (*to_call_history) (struct target_ops *, int size, int flags)
1201 TARGET_DEFAULT_NORETURN (tcomplain ());
1203 /* Print a function trace of the recorded execution trace starting
1205 If SIZE < 0, print abs (SIZE) functions before FROM; otherwise, print
1206 SIZE functions after FROM. */
1207 void (*to_call_history_from) (struct target_ops *,
1208 ULONGEST begin, int size, int flags)
1209 TARGET_DEFAULT_NORETURN (tcomplain ());
1211 /* Print a function trace of an execution trace section from function BEGIN
1212 (inclusive) to function END (inclusive). */
1213 void (*to_call_history_range) (struct target_ops *,
1214 ULONGEST begin, ULONGEST end, int flags)
1215 TARGET_DEFAULT_NORETURN (tcomplain ());
1217 /* Nonzero if TARGET_OBJECT_LIBRARIES_SVR4 may be read with a
1219 int (*to_augmented_libraries_svr4_read) (struct target_ops *)
1220 TARGET_DEFAULT_RETURN (0);
1222 /* Those unwinders are tried before any other arch unwinders. If
1223 SELF doesn't have unwinders, it should delegate to the
1224 "beneath" target. */
1225 const struct frame_unwind *(*to_get_unwinder) (struct target_ops *self)
1226 TARGET_DEFAULT_RETURN (NULL);
1228 const struct frame_unwind *(*to_get_tailcall_unwinder) (struct target_ops *self)
1229 TARGET_DEFAULT_RETURN (NULL);
1231 /* Prepare to generate a core file. */
1232 void (*to_prepare_to_generate_core) (struct target_ops *)
1233 TARGET_DEFAULT_IGNORE ();
1235 /* Cleanup after generating a core file. */
1236 void (*to_done_generating_core) (struct target_ops *)
1237 TARGET_DEFAULT_IGNORE ();
1240 /* Need sub-structure for target machine related rather than comm related?
1244 /* Magic number for checking ops size. If a struct doesn't end with this
1245 number, somebody changed the declaration but didn't change all the
1246 places that initialize one. */
1248 #define OPS_MAGIC 3840
1250 /* The ops structure for our "current" target process. This should
1251 never be NULL. If there is no target, it points to the dummy_target. */
1253 extern struct target_ops current_target;
1255 /* Define easy words for doing these operations on our current target. */
1257 #define target_shortname (current_target.to_shortname)
1258 #define target_longname (current_target.to_longname)
1260 /* Does whatever cleanup is required for a target that we are no
1261 longer going to be calling. This routine is automatically always
1262 called after popping the target off the target stack - the target's
1263 own methods are no longer available through the target vector.
1264 Closing file descriptors and freeing all memory allocated memory are
1265 typical things it should do. */
1267 void target_close (struct target_ops *targ);
1269 /* Find the correct target to use for "attach". If a target on the
1270 current stack supports attaching, then it is returned. Otherwise,
1271 the default run target is returned. */
1273 extern struct target_ops *find_attach_target (void);
1275 /* Find the correct target to use for "run". If a target on the
1276 current stack supports creating a new inferior, then it is
1277 returned. Otherwise, the default run target is returned. */
1279 extern struct target_ops *find_run_target (void);
1281 /* Some targets don't generate traps when attaching to the inferior,
1282 or their target_attach implementation takes care of the waiting.
1283 These targets must set to_attach_no_wait. */
1285 #define target_attach_no_wait \
1286 (current_target.to_attach_no_wait)
1288 /* The target_attach operation places a process under debugger control,
1289 and stops the process.
1291 This operation provides a target-specific hook that allows the
1292 necessary bookkeeping to be performed after an attach completes. */
1293 #define target_post_attach(pid) \
1294 (*current_target.to_post_attach) (¤t_target, pid)
1296 /* Takes a program previously attached to and detaches it.
1297 The program may resume execution (some targets do, some don't) and will
1298 no longer stop on signals, etc. We better not have left any breakpoints
1299 in the program or it'll die when it hits one. ARGS is arguments
1300 typed by the user (e.g. a signal to send the process). FROM_TTY
1301 says whether to be verbose or not. */
1303 extern void target_detach (const char *, int);
1305 /* Disconnect from the current target without resuming it (leaving it
1306 waiting for a debugger). */
1308 extern void target_disconnect (const char *, int);
1310 /* Resume execution of the target process PTID (or a group of
1311 threads). STEP says whether to hardware single-step or to run free;
1312 SIGGNAL is the signal to be given to the target, or GDB_SIGNAL_0 for no
1313 signal. The caller may not pass GDB_SIGNAL_DEFAULT. A specific
1314 PTID means `step/resume only this process id'. A wildcard PTID
1315 (all threads, or all threads of process) means `step/resume
1316 INFERIOR_PTID, and let other threads (for which the wildcard PTID
1317 matches) resume with their 'thread->suspend.stop_signal' signal
1318 (usually GDB_SIGNAL_0) if it is in "pass" state, or with no signal
1319 if in "no pass" state. */
1321 extern void target_resume (ptid_t ptid, int step, enum gdb_signal signal);
1323 /* Wait for process pid to do something. PTID = -1 to wait for any
1324 pid to do something. Return pid of child, or -1 in case of error;
1325 store status through argument pointer STATUS. Note that it is
1326 _NOT_ OK to throw_exception() out of target_wait() without popping
1327 the debugging target from the stack; GDB isn't prepared to get back
1328 to the prompt with a debugging target but without the frame cache,
1329 stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W*
1332 extern ptid_t target_wait (ptid_t ptid, struct target_waitstatus *status,
1335 /* The default target_ops::to_wait implementation. */
1337 extern ptid_t default_target_wait (struct target_ops *ops,
1339 struct target_waitstatus *status,
1342 /* Fetch at least register REGNO, or all regs if regno == -1. No result. */
1344 extern void target_fetch_registers (struct regcache *regcache, int regno);
1346 /* Store at least register REGNO, or all regs if REGNO == -1.
1347 It can store as many registers as it wants to, so target_prepare_to_store
1348 must have been previously called. Calls error() if there are problems. */
1350 extern void target_store_registers (struct regcache *regcache, int regs);
1352 /* Get ready to modify the registers array. On machines which store
1353 individual registers, this doesn't need to do anything. On machines
1354 which store all the registers in one fell swoop, this makes sure
1355 that REGISTERS contains all the registers from the program being
1358 #define target_prepare_to_store(regcache) \
1359 (*current_target.to_prepare_to_store) (¤t_target, regcache)
1361 /* Determine current address space of thread PTID. */
1363 struct address_space *target_thread_address_space (ptid_t);
1365 /* Implement the "info proc" command. This returns one if the request
1366 was handled, and zero otherwise. It can also throw an exception if
1367 an error was encountered while attempting to handle the
1370 int target_info_proc (const char *, enum info_proc_what);
1372 /* Returns true if this target can debug multiple processes
1375 #define target_supports_multi_process() \
1376 (*current_target.to_supports_multi_process) (¤t_target)
1378 /* Returns true if this target can disable address space randomization. */
1380 int target_supports_disable_randomization (void);
1382 /* Returns true if this target can enable and disable tracepoints
1383 while a trace experiment is running. */
1385 #define target_supports_enable_disable_tracepoint() \
1386 (*current_target.to_supports_enable_disable_tracepoint) (¤t_target)
1388 #define target_supports_string_tracing() \
1389 (*current_target.to_supports_string_tracing) (¤t_target)
1391 /* Returns true if this target can handle breakpoint conditions
1394 #define target_supports_evaluation_of_breakpoint_conditions() \
1395 (*current_target.to_supports_evaluation_of_breakpoint_conditions) (¤t_target)
1397 /* Returns true if this target can handle breakpoint commands
1400 #define target_can_run_breakpoint_commands() \
1401 (*current_target.to_can_run_breakpoint_commands) (¤t_target)
1403 extern int target_read_string (CORE_ADDR, char **, int, int *);
1405 /* For target_read_memory see target/target.h. */
1407 extern int target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr,
1410 extern int target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
1412 extern int target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
1414 /* For target_write_memory see target/target.h. */
1416 extern int target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
1419 /* Fetches the target's memory map. If one is found it is sorted
1420 and returned, after some consistency checking. Otherwise, NULL
1422 VEC(mem_region_s) *target_memory_map (void);
1424 /* Erase the specified flash region. */
1425 void target_flash_erase (ULONGEST address, LONGEST length);
1427 /* Finish a sequence of flash operations. */
1428 void target_flash_done (void);
1430 /* Describes a request for a memory write operation. */
1431 struct memory_write_request
1433 /* Begining address that must be written. */
1435 /* Past-the-end address. */
1437 /* The data to write. */
1439 /* A callback baton for progress reporting for this request. */
1442 typedef struct memory_write_request memory_write_request_s;
1443 DEF_VEC_O(memory_write_request_s);
1445 /* Enumeration specifying different flash preservation behaviour. */
1446 enum flash_preserve_mode
1452 /* Write several memory blocks at once. This version can be more
1453 efficient than making several calls to target_write_memory, in
1454 particular because it can optimize accesses to flash memory.
1456 Moreover, this is currently the only memory access function in gdb
1457 that supports writing to flash memory, and it should be used for
1458 all cases where access to flash memory is desirable.
1460 REQUESTS is the vector (see vec.h) of memory_write_request.
1461 PRESERVE_FLASH_P indicates what to do with blocks which must be
1462 erased, but not completely rewritten.
1463 PROGRESS_CB is a function that will be periodically called to provide
1464 feedback to user. It will be called with the baton corresponding
1465 to the request currently being written. It may also be called
1466 with a NULL baton, when preserved flash sectors are being rewritten.
1468 The function returns 0 on success, and error otherwise. */
1469 int target_write_memory_blocks (VEC(memory_write_request_s) *requests,
1470 enum flash_preserve_mode preserve_flash_p,
1471 void (*progress_cb) (ULONGEST, void *));
1473 /* Print a line about the current target. */
1475 #define target_files_info() \
1476 (*current_target.to_files_info) (¤t_target)
1478 /* Insert a breakpoint at address BP_TGT->placed_address in
1479 the target machine. Returns 0 for success, and returns non-zero or
1480 throws an error (with a detailed failure reason error code and
1481 message) otherwise. */
1483 extern int target_insert_breakpoint (struct gdbarch *gdbarch,
1484 struct bp_target_info *bp_tgt);
1486 /* Remove a breakpoint at address BP_TGT->placed_address in the target
1487 machine. Result is 0 for success, non-zero for error. */
1489 extern int target_remove_breakpoint (struct gdbarch *gdbarch,
1490 struct bp_target_info *bp_tgt);
1492 /* Returns true if the terminal settings of the inferior are in
1495 extern int target_terminal_is_inferior (void);
1497 /* Initialize the terminal settings we record for the inferior,
1498 before we actually run the inferior. */
1500 extern void target_terminal_init (void);
1502 /* Put the inferior's terminal settings into effect.
1503 This is preparation for starting or resuming the inferior. */
1505 extern void target_terminal_inferior (void);
1507 /* Put some of our terminal settings into effect, enough to get proper
1508 results from our output, but do not change into or out of RAW mode
1509 so that no input is discarded. This is a no-op if terminal_ours
1510 was most recently called. */
1512 extern void target_terminal_ours_for_output (void);
1514 /* Put our terminal settings into effect.
1515 First record the inferior's terminal settings
1516 so they can be restored properly later. */
1518 extern void target_terminal_ours (void);
1520 /* Return true if the target stack has a non-default
1521 "to_terminal_ours" method. */
1523 extern int target_supports_terminal_ours (void);
1525 /* Make a cleanup that restores the state of the terminal to the current
1527 extern struct cleanup *make_cleanup_restore_target_terminal (void);
1529 /* Print useful information about our terminal status, if such a thing
1532 #define target_terminal_info(arg, from_tty) \
1533 (*current_target.to_terminal_info) (¤t_target, arg, from_tty)
1535 /* Kill the inferior process. Make it go away. */
1537 extern void target_kill (void);
1539 /* Load an executable file into the target process. This is expected
1540 to not only bring new code into the target process, but also to
1541 update GDB's symbol tables to match.
1543 ARG contains command-line arguments, to be broken down with
1544 buildargv (). The first non-switch argument is the filename to
1545 load, FILE; the second is a number (as parsed by strtoul (..., ...,
1546 0)), which is an offset to apply to the load addresses of FILE's
1547 sections. The target may define switches, or other non-switch
1548 arguments, as it pleases. */
1550 extern void target_load (const char *arg, int from_tty);
1552 /* Some targets (such as ttrace-based HPUX) don't allow us to request
1553 notification of inferior events such as fork and vork immediately
1554 after the inferior is created. (This because of how gdb gets an
1555 inferior created via invoking a shell to do it. In such a scenario,
1556 if the shell init file has commands in it, the shell will fork and
1557 exec for each of those commands, and we will see each such fork
1560 Such targets will supply an appropriate definition for this function. */
1562 #define target_post_startup_inferior(ptid) \
1563 (*current_target.to_post_startup_inferior) (¤t_target, ptid)
1565 /* On some targets, we can catch an inferior fork or vfork event when
1566 it occurs. These functions insert/remove an already-created
1567 catchpoint for such events. They return 0 for success, 1 if the
1568 catchpoint type is not supported and -1 for failure. */
1570 #define target_insert_fork_catchpoint(pid) \
1571 (*current_target.to_insert_fork_catchpoint) (¤t_target, pid)
1573 #define target_remove_fork_catchpoint(pid) \
1574 (*current_target.to_remove_fork_catchpoint) (¤t_target, pid)
1576 #define target_insert_vfork_catchpoint(pid) \
1577 (*current_target.to_insert_vfork_catchpoint) (¤t_target, pid)
1579 #define target_remove_vfork_catchpoint(pid) \
1580 (*current_target.to_remove_vfork_catchpoint) (¤t_target, pid)
1582 /* If the inferior forks or vforks, this function will be called at
1583 the next resume in order to perform any bookkeeping and fiddling
1584 necessary to continue debugging either the parent or child, as
1585 requested, and releasing the other. Information about the fork
1586 or vfork event is available via get_last_target_status ().
1587 This function returns 1 if the inferior should not be resumed
1588 (i.e. there is another event pending). */
1590 int target_follow_fork (int follow_child, int detach_fork);
1592 /* Handle the target-specific bookkeeping required when the inferior
1593 makes an exec call. INF is the exec'd inferior. */
1595 void target_follow_exec (struct inferior *inf, char *execd_pathname);
1597 /* On some targets, we can catch an inferior exec event when it
1598 occurs. These functions insert/remove an already-created
1599 catchpoint for such events. They return 0 for success, 1 if the
1600 catchpoint type is not supported and -1 for failure. */
1602 #define target_insert_exec_catchpoint(pid) \
1603 (*current_target.to_insert_exec_catchpoint) (¤t_target, pid)
1605 #define target_remove_exec_catchpoint(pid) \
1606 (*current_target.to_remove_exec_catchpoint) (¤t_target, pid)
1610 NEEDED is nonzero if any syscall catch (of any kind) is requested.
1611 If NEEDED is zero, it means the target can disable the mechanism to
1612 catch system calls because there are no more catchpoints of this type.
1614 ANY_COUNT is nonzero if a generic (filter-less) syscall catch is
1615 being requested. In this case, both TABLE_SIZE and TABLE should
1618 TABLE_SIZE is the number of elements in TABLE. It only matters if
1621 TABLE is an array of ints, indexed by syscall number. An element in
1622 this array is nonzero if that syscall should be caught. This argument
1623 only matters if ANY_COUNT is zero.
1625 Return 0 for success, 1 if syscall catchpoints are not supported or -1
1628 #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \
1629 (*current_target.to_set_syscall_catchpoint) (¤t_target, \
1630 pid, needed, any_count, \
1633 /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
1634 exit code of PID, if any. */
1636 #define target_has_exited(pid,wait_status,exit_status) \
1637 (*current_target.to_has_exited) (¤t_target, \
1638 pid,wait_status,exit_status)
1640 /* The debugger has completed a blocking wait() call. There is now
1641 some process event that must be processed. This function should
1642 be defined by those targets that require the debugger to perform
1643 cleanup or internal state changes in response to the process event. */
1645 /* The inferior process has died. Do what is right. */
1647 void target_mourn_inferior (void);
1649 /* Does target have enough data to do a run or attach command? */
1651 #define target_can_run(t) \
1652 ((t)->to_can_run) (t)
1654 /* Set list of signals to be handled in the target.
1656 PASS_SIGNALS is an array of size NSIG, indexed by target signal number
1657 (enum gdb_signal). For every signal whose entry in this array is
1658 non-zero, the target is allowed -but not required- to skip reporting
1659 arrival of the signal to the GDB core by returning from target_wait,
1660 and to pass the signal directly to the inferior instead.
1662 However, if the target is hardware single-stepping a thread that is
1663 about to receive a signal, it needs to be reported in any case, even
1664 if mentioned in a previous target_pass_signals call. */
1666 extern void target_pass_signals (int nsig, unsigned char *pass_signals);
1668 /* Set list of signals the target may pass to the inferior. This
1669 directly maps to the "handle SIGNAL pass/nopass" setting.
1671 PROGRAM_SIGNALS is an array of size NSIG, indexed by target signal
1672 number (enum gdb_signal). For every signal whose entry in this
1673 array is non-zero, the target is allowed to pass the signal to the
1674 inferior. Signals not present in the array shall be silently
1675 discarded. This does not influence whether to pass signals to the
1676 inferior as a result of a target_resume call. This is useful in
1677 scenarios where the target needs to decide whether to pass or not a
1678 signal to the inferior without GDB core involvement, such as for
1679 example, when detaching (as threads may have been suspended with
1680 pending signals not reported to GDB). */
1682 extern void target_program_signals (int nsig, unsigned char *program_signals);
1684 /* Check to see if a thread is still alive. */
1686 extern int target_thread_alive (ptid_t ptid);
1688 /* Sync the target's threads with GDB's thread list. */
1690 extern void target_update_thread_list (void);
1692 /* Make target stop in a continuable fashion. (For instance, under
1693 Unix, this should act like SIGSTOP). Note that this function is
1694 asynchronous: it does not wait for the target to become stopped
1695 before returning. If this is the behavior you want please use
1696 target_stop_and_wait. */
1698 extern void target_stop (ptid_t ptid);
1700 /* Interrupt the target just like the user typed a ^C on the
1701 inferior's controlling terminal. (For instance, under Unix, this
1702 should act like SIGINT). This function is asynchronous. */
1704 extern void target_interrupt (ptid_t ptid);
1706 /* Some targets install their own SIGINT handler while the target is
1707 running. This method is called from the QUIT macro to give such
1708 targets a chance to process a Ctrl-C. The target may e.g., choose
1709 to interrupt the (potentially) long running operation, or give up
1710 waiting and disconnect. */
1712 extern void target_check_pending_interrupt (void);
1714 /* Send the specified COMMAND to the target's monitor
1715 (shell,interpreter) for execution. The result of the query is
1716 placed in OUTBUF. */
1718 #define target_rcmd(command, outbuf) \
1719 (*current_target.to_rcmd) (¤t_target, command, outbuf)
1722 /* Does the target include all of memory, or only part of it? This
1723 determines whether we look up the target chain for other parts of
1724 memory if this target can't satisfy a request. */
1726 extern int target_has_all_memory_1 (void);
1727 #define target_has_all_memory target_has_all_memory_1 ()
1729 /* Does the target include memory? (Dummy targets don't.) */
1731 extern int target_has_memory_1 (void);
1732 #define target_has_memory target_has_memory_1 ()
1734 /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until
1735 we start a process.) */
1737 extern int target_has_stack_1 (void);
1738 #define target_has_stack target_has_stack_1 ()
1740 /* Does the target have registers? (Exec files don't.) */
1742 extern int target_has_registers_1 (void);
1743 #define target_has_registers target_has_registers_1 ()
1745 /* Does the target have execution? Can we make it jump (through
1746 hoops), or pop its stack a few times? This means that the current
1747 target is currently executing; for some targets, that's the same as
1748 whether or not the target is capable of execution, but there are
1749 also targets which can be current while not executing. In that
1750 case this will become true after to_create_inferior or
1753 extern int target_has_execution_1 (ptid_t);
1755 /* Like target_has_execution_1, but always passes inferior_ptid. */
1757 extern int target_has_execution_current (void);
1759 #define target_has_execution target_has_execution_current ()
1761 /* Default implementations for process_stratum targets. Return true
1762 if there's a selected inferior, false otherwise. */
1764 extern int default_child_has_all_memory (struct target_ops *ops);
1765 extern int default_child_has_memory (struct target_ops *ops);
1766 extern int default_child_has_stack (struct target_ops *ops);
1767 extern int default_child_has_registers (struct target_ops *ops);
1768 extern int default_child_has_execution (struct target_ops *ops,
1771 /* Can the target support the debugger control of thread execution?
1772 Can it lock the thread scheduler? */
1774 #define target_can_lock_scheduler \
1775 (current_target.to_has_thread_control & tc_schedlock)
1777 /* Controls whether async mode is permitted. */
1778 extern int target_async_permitted;
1780 /* Can the target support asynchronous execution? */
1781 #define target_can_async_p() (current_target.to_can_async_p (¤t_target))
1783 /* Is the target in asynchronous execution mode? */
1784 #define target_is_async_p() (current_target.to_is_async_p (¤t_target))
1786 /* Enables/disabled async target events. */
1787 extern void target_async (int enable);
1789 /* Whether support for controlling the target backends always in
1790 non-stop mode is enabled. */
1791 extern enum auto_boolean target_non_stop_enabled;
1793 /* Is the target in non-stop mode? Some targets control the inferior
1794 in non-stop mode even with "set non-stop off". Always true if "set
1796 extern int target_is_non_stop_p (void);
1798 #define target_execution_direction() \
1799 (current_target.to_execution_direction (¤t_target))
1801 /* Converts a process id to a string. Usually, the string just contains
1802 `process xyz', but on some systems it may contain
1803 `process xyz thread abc'. */
1805 extern char *target_pid_to_str (ptid_t ptid);
1807 extern char *normal_pid_to_str (ptid_t ptid);
1809 /* Return a short string describing extra information about PID,
1810 e.g. "sleeping", "runnable", "running on LWP 3". Null return value
1813 #define target_extra_thread_info(TP) \
1814 (current_target.to_extra_thread_info (¤t_target, TP))
1816 /* Return the thread's name. A NULL result means that the target
1817 could not determine this thread's name. */
1819 extern char *target_thread_name (struct thread_info *);
1821 /* Attempts to find the pathname of the executable file
1822 that was run to create a specified process.
1824 The process PID must be stopped when this operation is used.
1826 If the executable file cannot be determined, NULL is returned.
1828 Else, a pointer to a character string containing the pathname
1829 is returned. This string should be copied into a buffer by
1830 the client if the string will not be immediately used, or if
1833 #define target_pid_to_exec_file(pid) \
1834 (current_target.to_pid_to_exec_file) (¤t_target, pid)
1836 /* See the to_thread_architecture description in struct target_ops. */
1838 #define target_thread_architecture(ptid) \
1839 (current_target.to_thread_architecture (¤t_target, ptid))
1842 * Iterator function for target memory regions.
1843 * Calls a callback function once for each memory region 'mapped'
1844 * in the child process. Defined as a simple macro rather than
1845 * as a function macro so that it can be tested for nullity.
1848 #define target_find_memory_regions(FUNC, DATA) \
1849 (current_target.to_find_memory_regions) (¤t_target, FUNC, DATA)
1852 * Compose corefile .note section.
1855 #define target_make_corefile_notes(BFD, SIZE_P) \
1856 (current_target.to_make_corefile_notes) (¤t_target, BFD, SIZE_P)
1858 /* Bookmark interfaces. */
1859 #define target_get_bookmark(ARGS, FROM_TTY) \
1860 (current_target.to_get_bookmark) (¤t_target, ARGS, FROM_TTY)
1862 #define target_goto_bookmark(ARG, FROM_TTY) \
1863 (current_target.to_goto_bookmark) (¤t_target, ARG, FROM_TTY)
1865 /* Hardware watchpoint interfaces. */
1867 /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or
1868 write). Only the INFERIOR_PTID task is being queried. */
1870 #define target_stopped_by_watchpoint() \
1871 ((*current_target.to_stopped_by_watchpoint) (¤t_target))
1873 /* Returns non-zero if the target stopped because it executed a
1874 software breakpoint instruction. */
1876 #define target_stopped_by_sw_breakpoint() \
1877 ((*current_target.to_stopped_by_sw_breakpoint) (¤t_target))
1879 #define target_supports_stopped_by_sw_breakpoint() \
1880 ((*current_target.to_supports_stopped_by_sw_breakpoint) (¤t_target))
1882 #define target_stopped_by_hw_breakpoint() \
1883 ((*current_target.to_stopped_by_hw_breakpoint) (¤t_target))
1885 #define target_supports_stopped_by_hw_breakpoint() \
1886 ((*current_target.to_supports_stopped_by_hw_breakpoint) (¤t_target))
1888 /* Non-zero if we have steppable watchpoints */
1890 #define target_have_steppable_watchpoint \
1891 (current_target.to_have_steppable_watchpoint)
1893 /* Non-zero if we have continuable watchpoints */
1895 #define target_have_continuable_watchpoint \
1896 (current_target.to_have_continuable_watchpoint)
1898 /* Provide defaults for hardware watchpoint functions. */
1900 /* If the *_hw_beakpoint functions have not been defined
1901 elsewhere use the definitions in the target vector. */
1903 /* Returns positive if we can set a hardware watchpoint of type TYPE.
1904 Returns negative if the target doesn't have enough hardware debug
1905 registers available. Return zero if hardware watchpoint of type
1906 TYPE isn't supported. TYPE is one of bp_hardware_watchpoint,
1907 bp_read_watchpoint, bp_write_watchpoint, or bp_hardware_breakpoint.
1908 CNT is the number of such watchpoints used so far, including this
1909 one. OTHERTYPE is who knows what... */
1911 #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \
1912 (*current_target.to_can_use_hw_breakpoint) (¤t_target, \
1913 TYPE, CNT, OTHERTYPE)
1915 /* Returns the number of debug registers needed to watch the given
1916 memory region, or zero if not supported. */
1918 #define target_region_ok_for_hw_watchpoint(addr, len) \
1919 (*current_target.to_region_ok_for_hw_watchpoint) (¤t_target, \
1923 #define target_can_do_single_step() \
1924 (*current_target.to_can_do_single_step) (¤t_target)
1926 /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes.
1927 TYPE is 0 for write, 1 for read, and 2 for read/write accesses.
1928 COND is the expression for its condition, or NULL if there's none.
1929 Returns 0 for success, 1 if the watchpoint type is not supported,
1932 #define target_insert_watchpoint(addr, len, type, cond) \
1933 (*current_target.to_insert_watchpoint) (¤t_target, \
1934 addr, len, type, cond)
1936 #define target_remove_watchpoint(addr, len, type, cond) \
1937 (*current_target.to_remove_watchpoint) (¤t_target, \
1938 addr, len, type, cond)
1940 /* Insert a new masked watchpoint at ADDR using the mask MASK.
1941 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1942 or hw_access for an access watchpoint. Returns 0 for success, 1 if
1943 masked watchpoints are not supported, -1 for failure. */
1945 extern int target_insert_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
1947 /* Remove a masked watchpoint at ADDR with the mask MASK.
1948 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1949 or hw_access for an access watchpoint. Returns 0 for success, non-zero
1952 extern int target_remove_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
1954 /* Insert a hardware breakpoint at address BP_TGT->placed_address in
1955 the target machine. Returns 0 for success, and returns non-zero or
1956 throws an error (with a detailed failure reason error code and
1957 message) otherwise. */
1959 #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
1960 (*current_target.to_insert_hw_breakpoint) (¤t_target, \
1963 #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
1964 (*current_target.to_remove_hw_breakpoint) (¤t_target, \
1967 /* Return number of debug registers needed for a ranged breakpoint,
1968 or -1 if ranged breakpoints are not supported. */
1970 extern int target_ranged_break_num_registers (void);
1972 /* Return non-zero if target knows the data address which triggered this
1973 target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the
1974 INFERIOR_PTID task is being queried. */
1975 #define target_stopped_data_address(target, addr_p) \
1976 (*(target)->to_stopped_data_address) (target, addr_p)
1978 /* Return non-zero if ADDR is within the range of a watchpoint spanning
1979 LENGTH bytes beginning at START. */
1980 #define target_watchpoint_addr_within_range(target, addr, start, length) \
1981 (*(target)->to_watchpoint_addr_within_range) (target, addr, start, length)
1983 /* Return non-zero if the target is capable of using hardware to evaluate
1984 the condition expression. In this case, if the condition is false when
1985 the watched memory location changes, execution may continue without the
1986 debugger being notified.
1988 Due to limitations in the hardware implementation, it may be capable of
1989 avoiding triggering the watchpoint in some cases where the condition
1990 expression is false, but may report some false positives as well.
1991 For this reason, GDB will still evaluate the condition expression when
1992 the watchpoint triggers. */
1993 #define target_can_accel_watchpoint_condition(addr, len, type, cond) \
1994 (*current_target.to_can_accel_watchpoint_condition) (¤t_target, \
1995 addr, len, type, cond)
1997 /* Return number of debug registers needed for a masked watchpoint,
1998 -1 if masked watchpoints are not supported or -2 if the given address
1999 and mask combination cannot be used. */
2001 extern int target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask);
2003 /* Target can execute in reverse? */
2004 #define target_can_execute_reverse \
2005 current_target.to_can_execute_reverse (¤t_target)
2007 extern const struct target_desc *target_read_description (struct target_ops *);
2009 #define target_get_ada_task_ptid(lwp, tid) \
2010 (*current_target.to_get_ada_task_ptid) (¤t_target, lwp,tid)
2012 /* Utility implementation of searching memory. */
2013 extern int simple_search_memory (struct target_ops* ops,
2014 CORE_ADDR start_addr,
2015 ULONGEST search_space_len,
2016 const gdb_byte *pattern,
2017 ULONGEST pattern_len,
2018 CORE_ADDR *found_addrp);
2020 /* Main entry point for searching memory. */
2021 extern int target_search_memory (CORE_ADDR start_addr,
2022 ULONGEST search_space_len,
2023 const gdb_byte *pattern,
2024 ULONGEST pattern_len,
2025 CORE_ADDR *found_addrp);
2027 /* Target file operations. */
2029 /* Return nonzero if the filesystem seen by the current inferior
2030 is the local filesystem, zero otherwise. */
2031 #define target_filesystem_is_local() \
2032 current_target.to_filesystem_is_local (¤t_target)
2034 /* Open FILENAME on the target, in the filesystem as seen by INF,
2035 using FLAGS and MODE. If INF is NULL, use the filesystem seen
2036 by the debugger (GDB or, for remote targets, the remote stub).
2037 Return a target file descriptor, or -1 if an error occurs (and
2038 set *TARGET_ERRNO). */
2039 extern int target_fileio_open (struct inferior *inf,
2040 const char *filename, int flags,
2041 int mode, int *target_errno);
2043 /* Like target_fileio_open, but print a warning message if the
2044 file is being accessed over a link that may be slow. */
2045 extern int target_fileio_open_warn_if_slow (struct inferior *inf,
2046 const char *filename,
2051 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
2052 Return the number of bytes written, or -1 if an error occurs
2053 (and set *TARGET_ERRNO). */
2054 extern int target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
2055 ULONGEST offset, int *target_errno);
2057 /* Read up to LEN bytes FD on the target into READ_BUF.
2058 Return the number of bytes read, or -1 if an error occurs
2059 (and set *TARGET_ERRNO). */
2060 extern int target_fileio_pread (int fd, gdb_byte *read_buf, int len,
2061 ULONGEST offset, int *target_errno);
2063 /* Get information about the file opened as FD on the target
2064 and put it in SB. Return 0 on success, or -1 if an error
2065 occurs (and set *TARGET_ERRNO). */
2066 extern int target_fileio_fstat (int fd, struct stat *sb,
2069 /* Close FD on the target. Return 0, or -1 if an error occurs
2070 (and set *TARGET_ERRNO). */
2071 extern int target_fileio_close (int fd, int *target_errno);
2073 /* Unlink FILENAME on the target, in the filesystem as seen by INF.
2074 If INF is NULL, use the filesystem seen by the debugger (GDB or,
2075 for remote targets, the remote stub). Return 0, or -1 if an error
2076 occurs (and set *TARGET_ERRNO). */
2077 extern int target_fileio_unlink (struct inferior *inf,
2078 const char *filename,
2081 /* Read value of symbolic link FILENAME on the target, in the
2082 filesystem as seen by INF. If INF is NULL, use the filesystem seen
2083 by the debugger (GDB or, for remote targets, the remote stub).
2084 Return a null-terminated string allocated via xmalloc, or NULL if
2085 an error occurs (and set *TARGET_ERRNO). */
2086 extern char *target_fileio_readlink (struct inferior *inf,
2087 const char *filename,
2090 /* Read target file FILENAME, in the filesystem as seen by INF. If
2091 INF is NULL, use the filesystem seen by the debugger (GDB or, for
2092 remote targets, the remote stub). The return value will be -1 if
2093 the transfer fails or is not supported; 0 if the object is empty;
2094 or the length of the object otherwise. If a positive value is
2095 returned, a sufficiently large buffer will be allocated using
2096 xmalloc and returned in *BUF_P containing the contents of the
2099 This method should be used for objects sufficiently small to store
2100 in a single xmalloc'd buffer, when no fixed bound on the object's
2101 size is known in advance. */
2102 extern LONGEST target_fileio_read_alloc (struct inferior *inf,
2103 const char *filename,
2106 /* Read target file FILENAME, in the filesystem as seen by INF. If
2107 INF is NULL, use the filesystem seen by the debugger (GDB or, for
2108 remote targets, the remote stub). The result is NUL-terminated and
2109 returned as a string, allocated using xmalloc. If an error occurs
2110 or the transfer is unsupported, NULL is returned. Empty objects
2111 are returned as allocated but empty strings. A warning is issued
2112 if the result contains any embedded NUL bytes. */
2113 extern char *target_fileio_read_stralloc (struct inferior *inf,
2114 const char *filename);
2117 /* Tracepoint-related operations. */
2119 #define target_trace_init() \
2120 (*current_target.to_trace_init) (¤t_target)
2122 #define target_download_tracepoint(t) \
2123 (*current_target.to_download_tracepoint) (¤t_target, t)
2125 #define target_can_download_tracepoint() \
2126 (*current_target.to_can_download_tracepoint) (¤t_target)
2128 #define target_download_trace_state_variable(tsv) \
2129 (*current_target.to_download_trace_state_variable) (¤t_target, tsv)
2131 #define target_enable_tracepoint(loc) \
2132 (*current_target.to_enable_tracepoint) (¤t_target, loc)
2134 #define target_disable_tracepoint(loc) \
2135 (*current_target.to_disable_tracepoint) (¤t_target, loc)
2137 #define target_trace_start() \
2138 (*current_target.to_trace_start) (¤t_target)
2140 #define target_trace_set_readonly_regions() \
2141 (*current_target.to_trace_set_readonly_regions) (¤t_target)
2143 #define target_get_trace_status(ts) \
2144 (*current_target.to_get_trace_status) (¤t_target, ts)
2146 #define target_get_tracepoint_status(tp,utp) \
2147 (*current_target.to_get_tracepoint_status) (¤t_target, tp, utp)
2149 #define target_trace_stop() \
2150 (*current_target.to_trace_stop) (¤t_target)
2152 #define target_trace_find(type,num,addr1,addr2,tpp) \
2153 (*current_target.to_trace_find) (¤t_target, \
2154 (type), (num), (addr1), (addr2), (tpp))
2156 #define target_get_trace_state_variable_value(tsv,val) \
2157 (*current_target.to_get_trace_state_variable_value) (¤t_target, \
2160 #define target_save_trace_data(filename) \
2161 (*current_target.to_save_trace_data) (¤t_target, filename)
2163 #define target_upload_tracepoints(utpp) \
2164 (*current_target.to_upload_tracepoints) (¤t_target, utpp)
2166 #define target_upload_trace_state_variables(utsvp) \
2167 (*current_target.to_upload_trace_state_variables) (¤t_target, utsvp)
2169 #define target_get_raw_trace_data(buf,offset,len) \
2170 (*current_target.to_get_raw_trace_data) (¤t_target, \
2171 (buf), (offset), (len))
2173 #define target_get_min_fast_tracepoint_insn_len() \
2174 (*current_target.to_get_min_fast_tracepoint_insn_len) (¤t_target)
2176 #define target_set_disconnected_tracing(val) \
2177 (*current_target.to_set_disconnected_tracing) (¤t_target, val)
2179 #define target_set_circular_trace_buffer(val) \
2180 (*current_target.to_set_circular_trace_buffer) (¤t_target, val)
2182 #define target_set_trace_buffer_size(val) \
2183 (*current_target.to_set_trace_buffer_size) (¤t_target, val)
2185 #define target_set_trace_notes(user,notes,stopnotes) \
2186 (*current_target.to_set_trace_notes) (¤t_target, \
2187 (user), (notes), (stopnotes))
2189 #define target_get_tib_address(ptid, addr) \
2190 (*current_target.to_get_tib_address) (¤t_target, (ptid), (addr))
2192 #define target_set_permissions() \
2193 (*current_target.to_set_permissions) (¤t_target)
2195 #define target_static_tracepoint_marker_at(addr, marker) \
2196 (*current_target.to_static_tracepoint_marker_at) (¤t_target, \
2199 #define target_static_tracepoint_markers_by_strid(marker_id) \
2200 (*current_target.to_static_tracepoint_markers_by_strid) (¤t_target, \
2203 #define target_traceframe_info() \
2204 (*current_target.to_traceframe_info) (¤t_target)
2206 #define target_use_agent(use) \
2207 (*current_target.to_use_agent) (¤t_target, use)
2209 #define target_can_use_agent() \
2210 (*current_target.to_can_use_agent) (¤t_target)
2212 #define target_augmented_libraries_svr4_read() \
2213 (*current_target.to_augmented_libraries_svr4_read) (¤t_target)
2215 /* Command logging facility. */
2217 #define target_log_command(p) \
2218 (*current_target.to_log_command) (¤t_target, p)
2221 extern int target_core_of_thread (ptid_t ptid);
2223 /* See to_get_unwinder in struct target_ops. */
2224 extern const struct frame_unwind *target_get_unwinder (void);
2226 /* See to_get_tailcall_unwinder in struct target_ops. */
2227 extern const struct frame_unwind *target_get_tailcall_unwinder (void);
2229 /* This implements basic memory verification, reading target memory
2230 and performing the comparison here (as opposed to accelerated
2231 verification making use of the qCRC packet, for example). */
2233 extern int simple_verify_memory (struct target_ops* ops,
2234 const gdb_byte *data,
2235 CORE_ADDR memaddr, ULONGEST size);
2237 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches
2238 the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0
2239 if there's a mismatch, and -1 if an error is encountered while
2240 reading memory. Throws an error if the functionality is found not
2241 to be supported by the current target. */
2242 int target_verify_memory (const gdb_byte *data,
2243 CORE_ADDR memaddr, ULONGEST size);
2245 /* Routines for maintenance of the target structures...
2247 complete_target_initialization: Finalize a target_ops by filling in
2248 any fields needed by the target implementation. Unnecessary for
2249 targets which are registered via add_target, as this part gets
2252 add_target: Add a target to the list of all possible targets.
2253 This only makes sense for targets that should be activated using
2254 the "target TARGET_NAME ..." command.
2256 push_target: Make this target the top of the stack of currently used
2257 targets, within its particular stratum of the stack. Result
2258 is 0 if now atop the stack, nonzero if not on top (maybe
2261 unpush_target: Remove this from the stack of currently used targets,
2262 no matter where it is on the list. Returns 0 if no
2263 change, 1 if removed from stack. */
2265 extern void add_target (struct target_ops *);
2267 extern void add_target_with_completer (struct target_ops *t,
2268 completer_ftype *completer);
2270 extern void complete_target_initialization (struct target_ops *t);
2272 /* Adds a command ALIAS for target T and marks it deprecated. This is useful
2273 for maintaining backwards compatibility when renaming targets. */
2275 extern void add_deprecated_target_alias (struct target_ops *t, char *alias);
2277 extern void push_target (struct target_ops *);
2279 extern int unpush_target (struct target_ops *);
2281 extern void target_pre_inferior (int);
2283 extern void target_preopen (int);
2285 /* Does whatever cleanup is required to get rid of all pushed targets. */
2286 extern void pop_all_targets (void);
2288 /* Like pop_all_targets, but pops only targets whose stratum is
2289 strictly above ABOVE_STRATUM. */
2290 extern void pop_all_targets_above (enum strata above_stratum);
2292 extern int target_is_pushed (struct target_ops *t);
2294 extern CORE_ADDR target_translate_tls_address (struct objfile *objfile,
2297 /* Struct target_section maps address ranges to file sections. It is
2298 mostly used with BFD files, but can be used without (e.g. for handling
2299 raw disks, or files not in formats handled by BFD). */
2301 struct target_section
2303 CORE_ADDR addr; /* Lowest address in section */
2304 CORE_ADDR endaddr; /* 1+highest address in section */
2306 struct bfd_section *the_bfd_section;
2308 /* The "owner" of the section.
2309 It can be any unique value. It is set by add_target_sections
2310 and used by remove_target_sections.
2311 For example, for executables it is a pointer to exec_bfd and
2312 for shlibs it is the so_list pointer. */
2316 /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */
2318 struct target_section_table
2320 struct target_section *sections;
2321 struct target_section *sections_end;
2324 /* Return the "section" containing the specified address. */
2325 struct target_section *target_section_by_addr (struct target_ops *target,
2328 /* Return the target section table this target (or the targets
2329 beneath) currently manipulate. */
2331 extern struct target_section_table *target_get_section_table
2332 (struct target_ops *target);
2334 /* From mem-break.c */
2336 extern int memory_remove_breakpoint (struct target_ops *, struct gdbarch *,
2337 struct bp_target_info *);
2339 extern int memory_insert_breakpoint (struct target_ops *, struct gdbarch *,
2340 struct bp_target_info *);
2342 /* Check whether the memory at the breakpoint's placed address still
2343 contains the expected breakpoint instruction. */
2345 extern int memory_validate_breakpoint (struct gdbarch *gdbarch,
2346 struct bp_target_info *bp_tgt);
2348 extern int default_memory_remove_breakpoint (struct gdbarch *,
2349 struct bp_target_info *);
2351 extern int default_memory_insert_breakpoint (struct gdbarch *,
2352 struct bp_target_info *);
2357 extern void initialize_targets (void);
2359 extern void noprocess (void) ATTRIBUTE_NORETURN;
2361 extern void target_require_runnable (void);
2363 extern struct target_ops *find_target_beneath (struct target_ops *);
2365 /* Find the target at STRATUM. If no target is at that stratum,
2368 struct target_ops *find_target_at (enum strata stratum);
2370 /* Read OS data object of type TYPE from the target, and return it in
2371 XML format. The result is NUL-terminated and returned as a string,
2372 allocated using xmalloc. If an error occurs or the transfer is
2373 unsupported, NULL is returned. Empty objects are returned as
2374 allocated but empty strings. */
2376 extern char *target_get_osdata (const char *type);
2379 /* Stuff that should be shared among the various remote targets. */
2381 /* Debugging level. 0 is off, and non-zero values mean to print some debug
2382 information (higher values, more information). */
2383 extern int remote_debug;
2385 /* Speed in bits per second, or -1 which means don't mess with the speed. */
2386 extern int baud_rate;
2388 /* Parity for serial port */
2389 extern int serial_parity;
2391 /* Timeout limit for response from target. */
2392 extern int remote_timeout;
2396 /* Set the show memory breakpoints mode to show, and installs a cleanup
2397 to restore it back to the current value. */
2398 extern struct cleanup *make_show_memory_breakpoints_cleanup (int show);
2400 extern int may_write_registers;
2401 extern int may_write_memory;
2402 extern int may_insert_breakpoints;
2403 extern int may_insert_tracepoints;
2404 extern int may_insert_fast_tracepoints;
2405 extern int may_stop;
2407 extern void update_target_permissions (void);
2410 /* Imported from machine dependent code. */
2412 /* See to_supports_btrace in struct target_ops. */
2413 extern int target_supports_btrace (enum btrace_format);
2415 /* See to_enable_btrace in struct target_ops. */
2416 extern struct btrace_target_info *
2417 target_enable_btrace (ptid_t ptid, const struct btrace_config *);
2419 /* See to_disable_btrace in struct target_ops. */
2420 extern void target_disable_btrace (struct btrace_target_info *btinfo);
2422 /* See to_teardown_btrace in struct target_ops. */
2423 extern void target_teardown_btrace (struct btrace_target_info *btinfo);
2425 /* See to_read_btrace in struct target_ops. */
2426 extern enum btrace_error target_read_btrace (struct btrace_data *,
2427 struct btrace_target_info *,
2428 enum btrace_read_type);
2430 /* See to_btrace_conf in struct target_ops. */
2431 extern const struct btrace_config *
2432 target_btrace_conf (const struct btrace_target_info *);
2434 /* See to_stop_recording in struct target_ops. */
2435 extern void target_stop_recording (void);
2437 /* See to_save_record in struct target_ops. */
2438 extern void target_save_record (const char *filename);
2440 /* Query if the target supports deleting the execution log. */
2441 extern int target_supports_delete_record (void);
2443 /* See to_delete_record in struct target_ops. */
2444 extern void target_delete_record (void);
2446 /* See to_record_is_replaying in struct target_ops. */
2447 extern int target_record_is_replaying (ptid_t ptid);
2449 /* See to_record_stop_replaying in struct target_ops. */
2450 extern void target_record_stop_replaying (void);
2452 /* See to_goto_record_begin in struct target_ops. */
2453 extern void target_goto_record_begin (void);
2455 /* See to_goto_record_end in struct target_ops. */
2456 extern void target_goto_record_end (void);
2458 /* See to_goto_record in struct target_ops. */
2459 extern void target_goto_record (ULONGEST insn);
2461 /* See to_insn_history. */
2462 extern void target_insn_history (int size, int flags);
2464 /* See to_insn_history_from. */
2465 extern void target_insn_history_from (ULONGEST from, int size, int flags);
2467 /* See to_insn_history_range. */
2468 extern void target_insn_history_range (ULONGEST begin, ULONGEST end, int flags);
2470 /* See to_call_history. */
2471 extern void target_call_history (int size, int flags);
2473 /* See to_call_history_from. */
2474 extern void target_call_history_from (ULONGEST begin, int size, int flags);
2476 /* See to_call_history_range. */
2477 extern void target_call_history_range (ULONGEST begin, ULONGEST end, int flags);
2479 /* See to_prepare_to_generate_core. */
2480 extern void target_prepare_to_generate_core (void);
2482 /* See to_done_generating_core. */
2483 extern void target_done_generating_core (void);
2485 #endif /* !defined (TARGET_H) */