1 /* Interface between GDB and target environments, including files and processes
3 Copyright (C) 1990-2013 Free Software Foundation, Inc.
5 Contributed by Cygnus Support. Written by John Gilmore.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 #if !defined (TARGET_H)
30 struct bp_target_info;
32 struct target_section_table;
33 struct trace_state_variable;
37 struct static_tracepoint_marker;
38 struct traceframe_info;
41 /* This include file defines the interface between the main part
42 of the debugger, and the part which is target-specific, or
43 specific to the communications interface between us and the
46 A TARGET is an interface between the debugger and a particular
47 kind of file or process. Targets can be STACKED in STRATA,
48 so that more than one target can potentially respond to a request.
49 In particular, memory accesses will walk down the stack of targets
50 until they find a target that is interested in handling that particular
51 address. STRATA are artificial boundaries on the stack, within
52 which particular kinds of targets live. Strata exist so that
53 people don't get confused by pushing e.g. a process target and then
54 a file target, and wondering why they can't see the current values
55 of variables any more (the file target is handling them and they
56 never get to the process target). So when you push a file target,
57 it goes into the file stratum, which is always below the process
64 #include "gdb_signals.h"
70 dummy_stratum, /* The lowest of the low */
71 file_stratum, /* Executable files, etc */
72 process_stratum, /* Executing processes or core dump files */
73 thread_stratum, /* Executing threads */
74 record_stratum, /* Support record debugging */
75 arch_stratum /* Architecture overrides */
78 enum thread_control_capabilities
80 tc_none = 0, /* Default: can't control thread execution. */
81 tc_schedlock = 1, /* Can lock the thread scheduler. */
84 /* Stuff for target_wait. */
86 /* Generally, what has the program done? */
89 /* The program has exited. The exit status is in value.integer. */
90 TARGET_WAITKIND_EXITED,
92 /* The program has stopped with a signal. Which signal is in
94 TARGET_WAITKIND_STOPPED,
96 /* The program has terminated with a signal. Which signal is in
98 TARGET_WAITKIND_SIGNALLED,
100 /* The program is letting us know that it dynamically loaded something
101 (e.g. it called load(2) on AIX). */
102 TARGET_WAITKIND_LOADED,
104 /* The program has forked. A "related" process' PTID is in
105 value.related_pid. I.e., if the child forks, value.related_pid
106 is the parent's ID. */
108 TARGET_WAITKIND_FORKED,
110 /* The program has vforked. A "related" process's PTID is in
111 value.related_pid. */
113 TARGET_WAITKIND_VFORKED,
115 /* The program has exec'ed a new executable file. The new file's
116 pathname is pointed to by value.execd_pathname. */
118 TARGET_WAITKIND_EXECD,
120 /* The program had previously vforked, and now the child is done
121 with the shared memory region, because it exec'ed or exited.
122 Note that the event is reported to the vfork parent. This is
123 only used if GDB did not stay attached to the vfork child,
124 otherwise, a TARGET_WAITKIND_EXECD or
125 TARGET_WAITKIND_EXIT|SIGNALLED event associated with the child
126 has the same effect. */
127 TARGET_WAITKIND_VFORK_DONE,
129 /* The program has entered or returned from a system call. On
130 HP-UX, this is used in the hardware watchpoint implementation.
131 The syscall's unique integer ID number is in value.syscall_id. */
133 TARGET_WAITKIND_SYSCALL_ENTRY,
134 TARGET_WAITKIND_SYSCALL_RETURN,
136 /* Nothing happened, but we stopped anyway. This perhaps should be handled
137 within target_wait, but I'm not sure target_wait should be resuming the
139 TARGET_WAITKIND_SPURIOUS,
141 /* An event has occured, but we should wait again.
142 Remote_async_wait() returns this when there is an event
143 on the inferior, but the rest of the world is not interested in
144 it. The inferior has not stopped, but has just sent some output
145 to the console, for instance. In this case, we want to go back
146 to the event loop and wait there for another event from the
147 inferior, rather than being stuck in the remote_async_wait()
148 function. sThis way the event loop is responsive to other events,
149 like for instance the user typing. */
150 TARGET_WAITKIND_IGNORE,
152 /* The target has run out of history information,
153 and cannot run backward any further. */
154 TARGET_WAITKIND_NO_HISTORY,
156 /* There are no resumed children left in the program. */
157 TARGET_WAITKIND_NO_RESUMED
160 struct target_waitstatus
162 enum target_waitkind kind;
164 /* Forked child pid, execd pathname, exit status, signal number or
171 char *execd_pathname;
177 /* Options that can be passed to target_wait. */
179 /* Return immediately if there's no event already queued. If this
180 options is not requested, target_wait blocks waiting for an
182 #define TARGET_WNOHANG 1
184 /* The structure below stores information about a system call.
185 It is basically used in the "catch syscall" command, and in
186 every function that gives information about a system call.
188 It's also good to mention that its fields represent everything
189 that we currently know about a syscall in GDB. */
192 /* The syscall number. */
195 /* The syscall name. */
199 /* Return a pretty printed form of target_waitstatus.
200 Space for the result is malloc'd, caller must free. */
201 extern char *target_waitstatus_to_string (const struct target_waitstatus *);
203 /* Return a pretty printed form of TARGET_OPTIONS.
204 Space for the result is malloc'd, caller must free. */
205 extern char *target_options_to_string (int target_options);
207 /* Possible types of events that the inferior handler will have to
209 enum inferior_event_type
211 /* Process a normal inferior event which will result in target_wait
214 /* We are called because a timer went off. */
216 /* We are called to do stuff after the inferior stops. */
218 /* We are called to do some stuff after the inferior stops, but we
219 are expected to reenter the proceed() and
220 handle_inferior_event() functions. This is used only in case of
221 'step n' like commands. */
225 /* Target objects which can be transfered using target_read,
226 target_write, et cetera. */
230 /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */
232 /* SPU target specific transfer. See "spu-tdep.c". */
234 /* Transfer up-to LEN bytes of memory starting at OFFSET. */
235 TARGET_OBJECT_MEMORY,
236 /* Memory, avoiding GDB's data cache and trusting the executable.
237 Target implementations of to_xfer_partial never need to handle
238 this object, and most callers should not use it. */
239 TARGET_OBJECT_RAW_MEMORY,
240 /* Memory known to be part of the target's stack. This is cached even
241 if it is not in a region marked as such, since it is known to be
243 TARGET_OBJECT_STACK_MEMORY,
244 /* Kernel Unwind Table. See "ia64-tdep.c". */
245 TARGET_OBJECT_UNWIND_TABLE,
246 /* Transfer auxilliary vector. */
248 /* StackGhost cookie. See "sparc-tdep.c". */
249 TARGET_OBJECT_WCOOKIE,
250 /* Target memory map in XML format. */
251 TARGET_OBJECT_MEMORY_MAP,
252 /* Flash memory. This object can be used to write contents to
253 a previously erased flash memory. Using it without erasing
254 flash can have unexpected results. Addresses are physical
255 address on target, and not relative to flash start. */
257 /* Available target-specific features, e.g. registers and coprocessors.
258 See "target-descriptions.c". ANNEX should never be empty. */
259 TARGET_OBJECT_AVAILABLE_FEATURES,
260 /* Currently loaded libraries, in XML format. */
261 TARGET_OBJECT_LIBRARIES,
262 /* Currently loaded libraries specific for SVR4 systems, in XML format. */
263 TARGET_OBJECT_LIBRARIES_SVR4,
264 /* Currently loaded libraries specific to AIX systems, in XML format. */
265 TARGET_OBJECT_LIBRARIES_AIX,
266 /* Get OS specific data. The ANNEX specifies the type (running
267 processes, etc.). The data being transfered is expected to follow
268 the DTD specified in features/osdata.dtd. */
269 TARGET_OBJECT_OSDATA,
270 /* Extra signal info. Usually the contents of `siginfo_t' on unix
272 TARGET_OBJECT_SIGNAL_INFO,
273 /* The list of threads that are being debugged. */
274 TARGET_OBJECT_THREADS,
275 /* Collected static trace data. */
276 TARGET_OBJECT_STATIC_TRACE_DATA,
277 /* The HP-UX registers (those that can be obtained or modified by using
278 the TT_LWP_RUREGS/TT_LWP_WUREGS ttrace requests). */
279 TARGET_OBJECT_HPUX_UREGS,
280 /* The HP-UX shared library linkage pointer. ANNEX should be a string
281 image of the code address whose linkage pointer we are looking for.
283 The size of the data transfered is always 8 bytes (the size of an
285 TARGET_OBJECT_HPUX_SOLIB_GOT,
286 /* Traceframe info, in XML format. */
287 TARGET_OBJECT_TRACEFRAME_INFO,
288 /* Load maps for FDPIC systems. */
290 /* Darwin dynamic linker info data. */
291 TARGET_OBJECT_DARWIN_DYLD_INFO,
292 /* OpenVMS Unwind Information Block. */
293 TARGET_OBJECT_OPENVMS_UIB,
294 /* Branch trace data, in XML format. */
296 /* Possible future objects: TARGET_OBJECT_FILE, ... */
299 /* Enumeration of the kinds of traceframe searches that a target may
300 be able to perform. */
311 typedef struct static_tracepoint_marker *static_tracepoint_marker_p;
312 DEF_VEC_P(static_tracepoint_marker_p);
314 /* Request that OPS transfer up to LEN 8-bit bytes of the target's
315 OBJECT. The OFFSET, for a seekable object, specifies the
316 starting point. The ANNEX can be used to provide additional
317 data-specific information to the target.
319 Return the number of bytes actually transfered, or -1 if the
320 transfer is not supported or otherwise fails. Return of a positive
321 value less than LEN indicates that no further transfer is possible.
322 Unlike the raw to_xfer_partial interface, callers of these
323 functions do not need to retry partial transfers. */
325 extern LONGEST target_read (struct target_ops *ops,
326 enum target_object object,
327 const char *annex, gdb_byte *buf,
328 ULONGEST offset, LONGEST len);
330 struct memory_read_result
332 /* First address that was read. */
334 /* Past-the-end address. */
339 typedef struct memory_read_result memory_read_result_s;
340 DEF_VEC_O(memory_read_result_s);
342 extern void free_memory_read_result_vector (void *);
344 extern VEC(memory_read_result_s)* read_memory_robust (struct target_ops *ops,
348 extern LONGEST target_write (struct target_ops *ops,
349 enum target_object object,
350 const char *annex, const gdb_byte *buf,
351 ULONGEST offset, LONGEST len);
353 /* Similar to target_write, except that it also calls PROGRESS with
354 the number of bytes written and the opaque BATON after every
355 successful partial write (and before the first write). This is
356 useful for progress reporting and user interaction while writing
357 data. To abort the transfer, the progress callback can throw an
360 LONGEST target_write_with_progress (struct target_ops *ops,
361 enum target_object object,
362 const char *annex, const gdb_byte *buf,
363 ULONGEST offset, LONGEST len,
364 void (*progress) (ULONGEST, void *),
367 /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will
368 be read using OPS. The return value will be -1 if the transfer
369 fails or is not supported; 0 if the object is empty; or the length
370 of the object otherwise. If a positive value is returned, a
371 sufficiently large buffer will be allocated using xmalloc and
372 returned in *BUF_P containing the contents of the object.
374 This method should be used for objects sufficiently small to store
375 in a single xmalloc'd buffer, when no fixed bound on the object's
376 size is known in advance. Don't try to read TARGET_OBJECT_MEMORY
377 through this function. */
379 extern LONGEST target_read_alloc (struct target_ops *ops,
380 enum target_object object,
381 const char *annex, gdb_byte **buf_p);
383 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
384 returned as a string, allocated using xmalloc. If an error occurs
385 or the transfer is unsupported, NULL is returned. Empty objects
386 are returned as allocated but empty strings. A warning is issued
387 if the result contains any embedded NUL bytes. */
389 extern char *target_read_stralloc (struct target_ops *ops,
390 enum target_object object,
393 /* Wrappers to target read/write that perform memory transfers. They
394 throw an error if the memory transfer fails.
396 NOTE: cagney/2003-10-23: The naming schema is lifted from
397 "frame.h". The parameter order is lifted from get_frame_memory,
398 which in turn lifted it from read_memory. */
400 extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr,
401 gdb_byte *buf, LONGEST len);
402 extern ULONGEST get_target_memory_unsigned (struct target_ops *ops,
403 CORE_ADDR addr, int len,
404 enum bfd_endian byte_order);
406 struct thread_info; /* fwd decl for parameter list below: */
410 struct target_ops *beneath; /* To the target under this one. */
411 char *to_shortname; /* Name this target type */
412 char *to_longname; /* Name for printing */
413 char *to_doc; /* Documentation. Does not include trailing
414 newline, and starts with a one-line descrip-
415 tion (probably similar to to_longname). */
416 /* Per-target scratch pad. */
418 /* The open routine takes the rest of the parameters from the
419 command, and (if successful) pushes a new target onto the
420 stack. Targets should supply this routine, if only to provide
422 void (*to_open) (char *, int);
423 /* Old targets with a static target vector provide "to_close".
424 New re-entrant targets provide "to_xclose" and that is expected
425 to xfree everything (including the "struct target_ops"). */
426 void (*to_xclose) (struct target_ops *targ);
427 void (*to_close) (void);
428 void (*to_attach) (struct target_ops *ops, char *, int);
429 void (*to_post_attach) (int);
430 void (*to_detach) (struct target_ops *ops, char *, int);
431 void (*to_disconnect) (struct target_ops *, char *, int);
432 void (*to_resume) (struct target_ops *, ptid_t, int, enum gdb_signal);
433 ptid_t (*to_wait) (struct target_ops *,
434 ptid_t, struct target_waitstatus *, int);
435 void (*to_fetch_registers) (struct target_ops *, struct regcache *, int);
436 void (*to_store_registers) (struct target_ops *, struct regcache *, int);
437 void (*to_prepare_to_store) (struct regcache *);
439 /* Transfer LEN bytes of memory between GDB address MYADDR and
440 target address MEMADDR. If WRITE, transfer them to the target, else
441 transfer them from the target. TARGET is the target from which we
444 Return value, N, is one of the following:
446 0 means that we can't handle this. If errno has been set, it is the
447 error which prevented us from doing it (FIXME: What about bfd_error?).
449 positive (call it N) means that we have transferred N bytes
450 starting at MEMADDR. We might be able to handle more bytes
451 beyond this length, but no promises.
453 negative (call its absolute value N) means that we cannot
454 transfer right at MEMADDR, but we could transfer at least
455 something at MEMADDR + N.
457 NOTE: cagney/2004-10-01: This has been entirely superseeded by
458 to_xfer_partial and inferior inheritance. */
460 int (*deprecated_xfer_memory) (CORE_ADDR memaddr, gdb_byte *myaddr,
462 struct mem_attrib *attrib,
463 struct target_ops *target);
465 void (*to_files_info) (struct target_ops *);
466 int (*to_insert_breakpoint) (struct gdbarch *, struct bp_target_info *);
467 int (*to_remove_breakpoint) (struct gdbarch *, struct bp_target_info *);
468 int (*to_can_use_hw_breakpoint) (int, int, int);
469 int (*to_ranged_break_num_registers) (struct target_ops *);
470 int (*to_insert_hw_breakpoint) (struct gdbarch *, struct bp_target_info *);
471 int (*to_remove_hw_breakpoint) (struct gdbarch *, struct bp_target_info *);
473 /* Documentation of what the two routines below are expected to do is
474 provided with the corresponding target_* macros. */
475 int (*to_remove_watchpoint) (CORE_ADDR, int, int, struct expression *);
476 int (*to_insert_watchpoint) (CORE_ADDR, int, int, struct expression *);
478 int (*to_insert_mask_watchpoint) (struct target_ops *,
479 CORE_ADDR, CORE_ADDR, int);
480 int (*to_remove_mask_watchpoint) (struct target_ops *,
481 CORE_ADDR, CORE_ADDR, int);
482 int (*to_stopped_by_watchpoint) (void);
483 int to_have_steppable_watchpoint;
484 int to_have_continuable_watchpoint;
485 int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *);
486 int (*to_watchpoint_addr_within_range) (struct target_ops *,
487 CORE_ADDR, CORE_ADDR, int);
489 /* Documentation of this routine is provided with the corresponding
491 int (*to_region_ok_for_hw_watchpoint) (CORE_ADDR, int);
493 int (*to_can_accel_watchpoint_condition) (CORE_ADDR, int, int,
494 struct expression *);
495 int (*to_masked_watch_num_registers) (struct target_ops *,
496 CORE_ADDR, CORE_ADDR);
497 void (*to_terminal_init) (void);
498 void (*to_terminal_inferior) (void);
499 void (*to_terminal_ours_for_output) (void);
500 void (*to_terminal_ours) (void);
501 void (*to_terminal_save_ours) (void);
502 void (*to_terminal_info) (char *, int);
503 void (*to_kill) (struct target_ops *);
504 void (*to_load) (char *, int);
505 void (*to_create_inferior) (struct target_ops *,
506 char *, char *, char **, int);
507 void (*to_post_startup_inferior) (ptid_t);
508 int (*to_insert_fork_catchpoint) (int);
509 int (*to_remove_fork_catchpoint) (int);
510 int (*to_insert_vfork_catchpoint) (int);
511 int (*to_remove_vfork_catchpoint) (int);
512 int (*to_follow_fork) (struct target_ops *, int);
513 int (*to_insert_exec_catchpoint) (int);
514 int (*to_remove_exec_catchpoint) (int);
515 int (*to_set_syscall_catchpoint) (int, int, int, int, int *);
516 int (*to_has_exited) (int, int, int *);
517 void (*to_mourn_inferior) (struct target_ops *);
518 int (*to_can_run) (void);
520 /* Documentation of this routine is provided with the corresponding
522 void (*to_pass_signals) (int, unsigned char *);
524 /* Documentation of this routine is provided with the
525 corresponding target_* function. */
526 void (*to_program_signals) (int, unsigned char *);
528 int (*to_thread_alive) (struct target_ops *, ptid_t ptid);
529 void (*to_find_new_threads) (struct target_ops *);
530 char *(*to_pid_to_str) (struct target_ops *, ptid_t);
531 char *(*to_extra_thread_info) (struct thread_info *);
532 char *(*to_thread_name) (struct thread_info *);
533 void (*to_stop) (ptid_t);
534 void (*to_rcmd) (char *command, struct ui_file *output);
535 char *(*to_pid_to_exec_file) (int pid);
536 void (*to_log_command) (const char *);
537 struct target_section_table *(*to_get_section_table) (struct target_ops *);
538 enum strata to_stratum;
539 int (*to_has_all_memory) (struct target_ops *);
540 int (*to_has_memory) (struct target_ops *);
541 int (*to_has_stack) (struct target_ops *);
542 int (*to_has_registers) (struct target_ops *);
543 int (*to_has_execution) (struct target_ops *, ptid_t);
544 int to_has_thread_control; /* control thread execution */
545 int to_attach_no_wait;
546 /* ASYNC target controls */
547 int (*to_can_async_p) (void);
548 int (*to_is_async_p) (void);
549 void (*to_async) (void (*) (enum inferior_event_type, void *), void *);
550 int (*to_supports_non_stop) (void);
551 /* find_memory_regions support method for gcore */
552 int (*to_find_memory_regions) (find_memory_region_ftype func, void *data);
553 /* make_corefile_notes support method for gcore */
554 char * (*to_make_corefile_notes) (bfd *, int *);
555 /* get_bookmark support method for bookmarks */
556 gdb_byte * (*to_get_bookmark) (char *, int);
557 /* goto_bookmark support method for bookmarks */
558 void (*to_goto_bookmark) (gdb_byte *, int);
559 /* Return the thread-local address at OFFSET in the
560 thread-local storage for the thread PTID and the shared library
561 or executable file given by OBJFILE. If that block of
562 thread-local storage hasn't been allocated yet, this function
563 may return an error. */
564 CORE_ADDR (*to_get_thread_local_address) (struct target_ops *ops,
566 CORE_ADDR load_module_addr,
569 /* Request that OPS transfer up to LEN 8-bit bytes of the target's
570 OBJECT. The OFFSET, for a seekable object, specifies the
571 starting point. The ANNEX can be used to provide additional
572 data-specific information to the target.
574 Return the number of bytes actually transfered, zero when no
575 further transfer is possible, and -1 when the transfer is not
576 supported. Return of a positive value smaller than LEN does
577 not indicate the end of the object, only the end of the
578 transfer; higher level code should continue transferring if
579 desired. This is handled in target.c.
581 The interface does not support a "retry" mechanism. Instead it
582 assumes that at least one byte will be transfered on each
585 NOTE: cagney/2003-10-17: The current interface can lead to
586 fragmented transfers. Lower target levels should not implement
587 hacks, such as enlarging the transfer, in an attempt to
588 compensate for this. Instead, the target stack should be
589 extended so that it implements supply/collect methods and a
590 look-aside object cache. With that available, the lowest
591 target can safely and freely "push" data up the stack.
593 See target_read and target_write for more information. One,
594 and only one, of readbuf or writebuf must be non-NULL. */
596 LONGEST (*to_xfer_partial) (struct target_ops *ops,
597 enum target_object object, const char *annex,
598 gdb_byte *readbuf, const gdb_byte *writebuf,
599 ULONGEST offset, LONGEST len);
601 /* Returns the memory map for the target. A return value of NULL
602 means that no memory map is available. If a memory address
603 does not fall within any returned regions, it's assumed to be
604 RAM. The returned memory regions should not overlap.
606 The order of regions does not matter; target_memory_map will
607 sort regions by starting address. For that reason, this
608 function should not be called directly except via
611 This method should not cache data; if the memory map could
612 change unexpectedly, it should be invalidated, and higher
613 layers will re-fetch it. */
614 VEC(mem_region_s) *(*to_memory_map) (struct target_ops *);
616 /* Erases the region of flash memory starting at ADDRESS, of
619 Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned
620 on flash block boundaries, as reported by 'to_memory_map'. */
621 void (*to_flash_erase) (struct target_ops *,
622 ULONGEST address, LONGEST length);
624 /* Finishes a flash memory write sequence. After this operation
625 all flash memory should be available for writing and the result
626 of reading from areas written by 'to_flash_write' should be
627 equal to what was written. */
628 void (*to_flash_done) (struct target_ops *);
630 /* Describe the architecture-specific features of this target.
631 Returns the description found, or NULL if no description
633 const struct target_desc *(*to_read_description) (struct target_ops *ops);
635 /* Build the PTID of the thread on which a given task is running,
636 based on LWP and THREAD. These values are extracted from the
637 task Private_Data section of the Ada Task Control Block, and
638 their interpretation depends on the target. */
639 ptid_t (*to_get_ada_task_ptid) (long lwp, long thread);
641 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
642 Return 0 if *READPTR is already at the end of the buffer.
643 Return -1 if there is insufficient buffer for a whole entry.
644 Return 1 if an entry was read into *TYPEP and *VALP. */
645 int (*to_auxv_parse) (struct target_ops *ops, gdb_byte **readptr,
646 gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
648 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
649 sequence of bytes in PATTERN with length PATTERN_LEN.
651 The result is 1 if found, 0 if not found, and -1 if there was an error
652 requiring halting of the search (e.g. memory read error).
653 If the pattern is found the address is recorded in FOUND_ADDRP. */
654 int (*to_search_memory) (struct target_ops *ops,
655 CORE_ADDR start_addr, ULONGEST search_space_len,
656 const gdb_byte *pattern, ULONGEST pattern_len,
657 CORE_ADDR *found_addrp);
659 /* Can target execute in reverse? */
660 int (*to_can_execute_reverse) (void);
662 /* The direction the target is currently executing. Must be
663 implemented on targets that support reverse execution and async
664 mode. The default simply returns forward execution. */
665 enum exec_direction_kind (*to_execution_direction) (void);
667 /* Does this target support debugging multiple processes
669 int (*to_supports_multi_process) (void);
671 /* Does this target support enabling and disabling tracepoints while a trace
672 experiment is running? */
673 int (*to_supports_enable_disable_tracepoint) (void);
675 /* Does this target support disabling address space randomization? */
676 int (*to_supports_disable_randomization) (void);
678 /* Does this target support the tracenz bytecode for string collection? */
679 int (*to_supports_string_tracing) (void);
681 /* Does this target support evaluation of breakpoint conditions on its
683 int (*to_supports_evaluation_of_breakpoint_conditions) (void);
685 /* Does this target support evaluation of breakpoint commands on its
687 int (*to_can_run_breakpoint_commands) (void);
689 /* Determine current architecture of thread PTID.
691 The target is supposed to determine the architecture of the code where
692 the target is currently stopped at (on Cell, if a target is in spu_run,
693 to_thread_architecture would return SPU, otherwise PPC32 or PPC64).
694 This is architecture used to perform decr_pc_after_break adjustment,
695 and also determines the frame architecture of the innermost frame.
696 ptrace operations need to operate according to target_gdbarch ().
698 The default implementation always returns target_gdbarch (). */
699 struct gdbarch *(*to_thread_architecture) (struct target_ops *, ptid_t);
701 /* Determine current address space of thread PTID.
703 The default implementation always returns the inferior's
705 struct address_space *(*to_thread_address_space) (struct target_ops *,
708 /* Target file operations. */
710 /* Open FILENAME on the target, using FLAGS and MODE. Return a
711 target file descriptor, or -1 if an error occurs (and set
713 int (*to_fileio_open) (const char *filename, int flags, int mode,
716 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
717 Return the number of bytes written, or -1 if an error occurs
718 (and set *TARGET_ERRNO). */
719 int (*to_fileio_pwrite) (int fd, const gdb_byte *write_buf, int len,
720 ULONGEST offset, int *target_errno);
722 /* Read up to LEN bytes FD on the target into READ_BUF.
723 Return the number of bytes read, or -1 if an error occurs
724 (and set *TARGET_ERRNO). */
725 int (*to_fileio_pread) (int fd, gdb_byte *read_buf, int len,
726 ULONGEST offset, int *target_errno);
728 /* Close FD on the target. Return 0, or -1 if an error occurs
729 (and set *TARGET_ERRNO). */
730 int (*to_fileio_close) (int fd, int *target_errno);
732 /* Unlink FILENAME on the target. Return 0, or -1 if an error
733 occurs (and set *TARGET_ERRNO). */
734 int (*to_fileio_unlink) (const char *filename, int *target_errno);
736 /* Read value of symbolic link FILENAME on the target. Return a
737 null-terminated string allocated via xmalloc, or NULL if an error
738 occurs (and set *TARGET_ERRNO). */
739 char *(*to_fileio_readlink) (const char *filename, int *target_errno);
742 /* Implement the "info proc" command. */
743 void (*to_info_proc) (struct target_ops *, char *, enum info_proc_what);
745 /* Tracepoint-related operations. */
747 /* Prepare the target for a tracing run. */
748 void (*to_trace_init) (void);
750 /* Send full details of a tracepoint location to the target. */
751 void (*to_download_tracepoint) (struct bp_location *location);
753 /* Is the target able to download tracepoint locations in current
755 int (*to_can_download_tracepoint) (void);
757 /* Send full details of a trace state variable to the target. */
758 void (*to_download_trace_state_variable) (struct trace_state_variable *tsv);
760 /* Enable a tracepoint on the target. */
761 void (*to_enable_tracepoint) (struct bp_location *location);
763 /* Disable a tracepoint on the target. */
764 void (*to_disable_tracepoint) (struct bp_location *location);
766 /* Inform the target info of memory regions that are readonly
767 (such as text sections), and so it should return data from
768 those rather than look in the trace buffer. */
769 void (*to_trace_set_readonly_regions) (void);
771 /* Start a trace run. */
772 void (*to_trace_start) (void);
774 /* Get the current status of a tracing run. */
775 int (*to_get_trace_status) (struct trace_status *ts);
777 void (*to_get_tracepoint_status) (struct breakpoint *tp,
778 struct uploaded_tp *utp);
780 /* Stop a trace run. */
781 void (*to_trace_stop) (void);
783 /* Ask the target to find a trace frame of the given type TYPE,
784 using NUM, ADDR1, and ADDR2 as search parameters. Returns the
785 number of the trace frame, and also the tracepoint number at
786 TPP. If no trace frame matches, return -1. May throw if the
788 int (*to_trace_find) (enum trace_find_type type, int num,
789 CORE_ADDR addr1, CORE_ADDR addr2, int *tpp);
791 /* Get the value of the trace state variable number TSV, returning
792 1 if the value is known and writing the value itself into the
793 location pointed to by VAL, else returning 0. */
794 int (*to_get_trace_state_variable_value) (int tsv, LONGEST *val);
796 int (*to_save_trace_data) (const char *filename);
798 int (*to_upload_tracepoints) (struct uploaded_tp **utpp);
800 int (*to_upload_trace_state_variables) (struct uploaded_tsv **utsvp);
802 LONGEST (*to_get_raw_trace_data) (gdb_byte *buf,
803 ULONGEST offset, LONGEST len);
805 /* Get the minimum length of instruction on which a fast tracepoint
806 may be set on the target. If this operation is unsupported,
807 return -1. If for some reason the minimum length cannot be
808 determined, return 0. */
809 int (*to_get_min_fast_tracepoint_insn_len) (void);
811 /* Set the target's tracing behavior in response to unexpected
812 disconnection - set VAL to 1 to keep tracing, 0 to stop. */
813 void (*to_set_disconnected_tracing) (int val);
814 void (*to_set_circular_trace_buffer) (int val);
815 /* Set the size of trace buffer in the target. */
816 void (*to_set_trace_buffer_size) (LONGEST val);
818 /* Add/change textual notes about the trace run, returning 1 if
819 successful, 0 otherwise. */
820 int (*to_set_trace_notes) (char *user, char *notes, char* stopnotes);
822 /* Return the processor core that thread PTID was last seen on.
823 This information is updated only when:
824 - update_thread_list is called
826 If the core cannot be determined -- either for the specified
827 thread, or right now, or in this debug session, or for this
828 target -- return -1. */
829 int (*to_core_of_thread) (struct target_ops *, ptid_t ptid);
831 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range
832 matches the contents of [DATA,DATA+SIZE). Returns 1 if there's
833 a match, 0 if there's a mismatch, and -1 if an error is
834 encountered while reading memory. */
835 int (*to_verify_memory) (struct target_ops *, const gdb_byte *data,
836 CORE_ADDR memaddr, ULONGEST size);
838 /* Return the address of the start of the Thread Information Block
839 a Windows OS specific feature. */
840 int (*to_get_tib_address) (ptid_t ptid, CORE_ADDR *addr);
842 /* Send the new settings of write permission variables. */
843 void (*to_set_permissions) (void);
845 /* Look for a static tracepoint marker at ADDR, and fill in MARKER
846 with its details. Return 1 on success, 0 on failure. */
847 int (*to_static_tracepoint_marker_at) (CORE_ADDR,
848 struct static_tracepoint_marker *marker);
850 /* Return a vector of all tracepoints markers string id ID, or all
851 markers if ID is NULL. */
852 VEC(static_tracepoint_marker_p) *(*to_static_tracepoint_markers_by_strid)
855 /* Return a traceframe info object describing the current
856 traceframe's contents. This method should not cache data;
857 higher layers take care of caching, invalidating, and
858 re-fetching when necessary. */
859 struct traceframe_info *(*to_traceframe_info) (void);
861 /* Ask the target to use or not to use agent according to USE. Return 1
862 successful, 0 otherwise. */
863 int (*to_use_agent) (int use);
865 /* Is the target able to use agent in current state? */
866 int (*to_can_use_agent) (void);
868 /* Check whether the target supports branch tracing. */
869 int (*to_supports_btrace) (void);
871 /* Enable branch tracing for PTID and allocate a branch trace target
872 information struct for reading and for disabling branch trace. */
873 struct btrace_target_info *(*to_enable_btrace) (ptid_t ptid);
875 /* Disable branch tracing and deallocate TINFO. */
876 void (*to_disable_btrace) (struct btrace_target_info *tinfo);
878 /* Disable branch tracing and deallocate TINFO. This function is similar
879 to to_disable_btrace, except that it is called during teardown and is
880 only allowed to perform actions that are safe. A counter-example would
881 be attempting to talk to a remote target. */
882 void (*to_teardown_btrace) (struct btrace_target_info *tinfo);
884 /* Read branch trace data. */
885 VEC (btrace_block_s) *(*to_read_btrace) (struct btrace_target_info *,
886 enum btrace_read_type);
888 /* Stop trace recording. */
889 void (*to_stop_recording) (void);
891 /* Print information about the recording. */
892 void (*to_info_record) (void);
894 /* Save the recorded execution trace into a file. */
895 void (*to_save_record) (char *filename);
897 /* Delete the recorded execution trace from the current position onwards. */
898 void (*to_delete_record) (void);
900 /* Query if the record target is currently replaying. */
901 int (*to_record_is_replaying) (void);
903 /* Go to the begin of the execution trace. */
904 void (*to_goto_record_begin) (void);
906 /* Go to the end of the execution trace. */
907 void (*to_goto_record_end) (void);
909 /* Go to a specific location in the recorded execution trace. */
910 void (*to_goto_record) (ULONGEST insn);
912 /* Disassemble SIZE instructions in the recorded execution trace from
913 the current position.
914 If SIZE < 0, disassemble abs (SIZE) preceding instructions; otherwise,
915 disassemble SIZE succeeding instructions. */
916 void (*to_insn_history) (int size, int flags);
918 /* Disassemble SIZE instructions in the recorded execution trace around
920 If SIZE < 0, disassemble abs (SIZE) instructions before FROM; otherwise,
921 disassemble SIZE instructions after FROM. */
922 void (*to_insn_history_from) (ULONGEST from, int size, int flags);
924 /* Disassemble a section of the recorded execution trace from instruction
925 BEGIN (inclusive) to instruction END (exclusive). */
926 void (*to_insn_history_range) (ULONGEST begin, ULONGEST end, int flags);
928 /* Print a function trace of the recorded execution trace.
929 If SIZE < 0, print abs (SIZE) preceding functions; otherwise, print SIZE
930 succeeding functions. */
931 void (*to_call_history) (int size, int flags);
933 /* Print a function trace of the recorded execution trace starting
935 If SIZE < 0, print abs (SIZE) functions before FROM; otherwise, print
936 SIZE functions after FROM. */
937 void (*to_call_history_from) (ULONGEST begin, int size, int flags);
939 /* Print a function trace of an execution trace section from function BEGIN
940 (inclusive) to function END (exclusive). */
941 void (*to_call_history_range) (ULONGEST begin, ULONGEST end, int flags);
944 /* Need sub-structure for target machine related rather than comm related?
948 /* Magic number for checking ops size. If a struct doesn't end with this
949 number, somebody changed the declaration but didn't change all the
950 places that initialize one. */
952 #define OPS_MAGIC 3840
954 /* The ops structure for our "current" target process. This should
955 never be NULL. If there is no target, it points to the dummy_target. */
957 extern struct target_ops current_target;
959 /* Define easy words for doing these operations on our current target. */
961 #define target_shortname (current_target.to_shortname)
962 #define target_longname (current_target.to_longname)
964 /* Does whatever cleanup is required for a target that we are no
965 longer going to be calling. This routine is automatically always
966 called after popping the target off the target stack - the target's
967 own methods are no longer available through the target vector.
968 Closing file descriptors and freeing all memory allocated memory are
969 typical things it should do. */
971 void target_close (struct target_ops *targ);
973 /* Attaches to a process on the target side. Arguments are as passed
974 to the `attach' command by the user. This routine can be called
975 when the target is not on the target-stack, if the target_can_run
976 routine returns 1; in that case, it must push itself onto the stack.
977 Upon exit, the target should be ready for normal operations, and
978 should be ready to deliver the status of the process immediately
979 (without waiting) to an upcoming target_wait call. */
981 void target_attach (char *, int);
983 /* Some targets don't generate traps when attaching to the inferior,
984 or their target_attach implementation takes care of the waiting.
985 These targets must set to_attach_no_wait. */
987 #define target_attach_no_wait \
988 (current_target.to_attach_no_wait)
990 /* The target_attach operation places a process under debugger control,
991 and stops the process.
993 This operation provides a target-specific hook that allows the
994 necessary bookkeeping to be performed after an attach completes. */
995 #define target_post_attach(pid) \
996 (*current_target.to_post_attach) (pid)
998 /* Takes a program previously attached to and detaches it.
999 The program may resume execution (some targets do, some don't) and will
1000 no longer stop on signals, etc. We better not have left any breakpoints
1001 in the program or it'll die when it hits one. ARGS is arguments
1002 typed by the user (e.g. a signal to send the process). FROM_TTY
1003 says whether to be verbose or not. */
1005 extern void target_detach (char *, int);
1007 /* Disconnect from the current target without resuming it (leaving it
1008 waiting for a debugger). */
1010 extern void target_disconnect (char *, int);
1012 /* Resume execution of the target process PTID (or a group of
1013 threads). STEP says whether to single-step or to run free; SIGGNAL
1014 is the signal to be given to the target, or GDB_SIGNAL_0 for no
1015 signal. The caller may not pass GDB_SIGNAL_DEFAULT. A specific
1016 PTID means `step/resume only this process id'. A wildcard PTID
1017 (all threads, or all threads of process) means `step/resume
1018 INFERIOR_PTID, and let other threads (for which the wildcard PTID
1019 matches) resume with their 'thread->suspend.stop_signal' signal
1020 (usually GDB_SIGNAL_0) if it is in "pass" state, or with no signal
1021 if in "no pass" state. */
1023 extern void target_resume (ptid_t ptid, int step, enum gdb_signal signal);
1025 /* Wait for process pid to do something. PTID = -1 to wait for any
1026 pid to do something. Return pid of child, or -1 in case of error;
1027 store status through argument pointer STATUS. Note that it is
1028 _NOT_ OK to throw_exception() out of target_wait() without popping
1029 the debugging target from the stack; GDB isn't prepared to get back
1030 to the prompt with a debugging target but without the frame cache,
1031 stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W*
1034 extern ptid_t target_wait (ptid_t ptid, struct target_waitstatus *status,
1037 /* Fetch at least register REGNO, or all regs if regno == -1. No result. */
1039 extern void target_fetch_registers (struct regcache *regcache, int regno);
1041 /* Store at least register REGNO, or all regs if REGNO == -1.
1042 It can store as many registers as it wants to, so target_prepare_to_store
1043 must have been previously called. Calls error() if there are problems. */
1045 extern void target_store_registers (struct regcache *regcache, int regs);
1047 /* Get ready to modify the registers array. On machines which store
1048 individual registers, this doesn't need to do anything. On machines
1049 which store all the registers in one fell swoop, this makes sure
1050 that REGISTERS contains all the registers from the program being
1053 #define target_prepare_to_store(regcache) \
1054 (*current_target.to_prepare_to_store) (regcache)
1056 /* Determine current address space of thread PTID. */
1058 struct address_space *target_thread_address_space (ptid_t);
1060 /* Implement the "info proc" command. This returns one if the request
1061 was handled, and zero otherwise. It can also throw an exception if
1062 an error was encountered while attempting to handle the
1065 int target_info_proc (char *, enum info_proc_what);
1067 /* Returns true if this target can debug multiple processes
1070 #define target_supports_multi_process() \
1071 (*current_target.to_supports_multi_process) ()
1073 /* Returns true if this target can disable address space randomization. */
1075 int target_supports_disable_randomization (void);
1077 /* Returns true if this target can enable and disable tracepoints
1078 while a trace experiment is running. */
1080 #define target_supports_enable_disable_tracepoint() \
1081 (*current_target.to_supports_enable_disable_tracepoint) ()
1083 #define target_supports_string_tracing() \
1084 (*current_target.to_supports_string_tracing) ()
1086 /* Returns true if this target can handle breakpoint conditions
1089 #define target_supports_evaluation_of_breakpoint_conditions() \
1090 (*current_target.to_supports_evaluation_of_breakpoint_conditions) ()
1092 /* Returns true if this target can handle breakpoint commands
1095 #define target_can_run_breakpoint_commands() \
1096 (*current_target.to_can_run_breakpoint_commands) ()
1098 /* Invalidate all target dcaches. */
1099 extern void target_dcache_invalidate (void);
1101 extern int target_read_string (CORE_ADDR, char **, int, int *);
1103 extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr,
1106 extern int target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
1108 extern int target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
1111 extern int target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
1114 /* Fetches the target's memory map. If one is found it is sorted
1115 and returned, after some consistency checking. Otherwise, NULL
1117 VEC(mem_region_s) *target_memory_map (void);
1119 /* Erase the specified flash region. */
1120 void target_flash_erase (ULONGEST address, LONGEST length);
1122 /* Finish a sequence of flash operations. */
1123 void target_flash_done (void);
1125 /* Describes a request for a memory write operation. */
1126 struct memory_write_request
1128 /* Begining address that must be written. */
1130 /* Past-the-end address. */
1132 /* The data to write. */
1134 /* A callback baton for progress reporting for this request. */
1137 typedef struct memory_write_request memory_write_request_s;
1138 DEF_VEC_O(memory_write_request_s);
1140 /* Enumeration specifying different flash preservation behaviour. */
1141 enum flash_preserve_mode
1147 /* Write several memory blocks at once. This version can be more
1148 efficient than making several calls to target_write_memory, in
1149 particular because it can optimize accesses to flash memory.
1151 Moreover, this is currently the only memory access function in gdb
1152 that supports writing to flash memory, and it should be used for
1153 all cases where access to flash memory is desirable.
1155 REQUESTS is the vector (see vec.h) of memory_write_request.
1156 PRESERVE_FLASH_P indicates what to do with blocks which must be
1157 erased, but not completely rewritten.
1158 PROGRESS_CB is a function that will be periodically called to provide
1159 feedback to user. It will be called with the baton corresponding
1160 to the request currently being written. It may also be called
1161 with a NULL baton, when preserved flash sectors are being rewritten.
1163 The function returns 0 on success, and error otherwise. */
1164 int target_write_memory_blocks (VEC(memory_write_request_s) *requests,
1165 enum flash_preserve_mode preserve_flash_p,
1166 void (*progress_cb) (ULONGEST, void *));
1168 /* Print a line about the current target. */
1170 #define target_files_info() \
1171 (*current_target.to_files_info) (¤t_target)
1173 /* Insert a breakpoint at address BP_TGT->placed_address in the target
1174 machine. Result is 0 for success, or an errno value. */
1176 extern int target_insert_breakpoint (struct gdbarch *gdbarch,
1177 struct bp_target_info *bp_tgt);
1179 /* Remove a breakpoint at address BP_TGT->placed_address in the target
1180 machine. Result is 0 for success, or an errno value. */
1182 extern int target_remove_breakpoint (struct gdbarch *gdbarch,
1183 struct bp_target_info *bp_tgt);
1185 /* Initialize the terminal settings we record for the inferior,
1186 before we actually run the inferior. */
1188 #define target_terminal_init() \
1189 (*current_target.to_terminal_init) ()
1191 /* Put the inferior's terminal settings into effect.
1192 This is preparation for starting or resuming the inferior. */
1194 extern void target_terminal_inferior (void);
1196 /* Put some of our terminal settings into effect,
1197 enough to get proper results from our output,
1198 but do not change into or out of RAW mode
1199 so that no input is discarded.
1201 After doing this, either terminal_ours or terminal_inferior
1202 should be called to get back to a normal state of affairs. */
1204 #define target_terminal_ours_for_output() \
1205 (*current_target.to_terminal_ours_for_output) ()
1207 /* Put our terminal settings into effect.
1208 First record the inferior's terminal settings
1209 so they can be restored properly later. */
1211 #define target_terminal_ours() \
1212 (*current_target.to_terminal_ours) ()
1214 /* Save our terminal settings.
1215 This is called from TUI after entering or leaving the curses
1216 mode. Since curses modifies our terminal this call is here
1217 to take this change into account. */
1219 #define target_terminal_save_ours() \
1220 (*current_target.to_terminal_save_ours) ()
1222 /* Print useful information about our terminal status, if such a thing
1225 #define target_terminal_info(arg, from_tty) \
1226 (*current_target.to_terminal_info) (arg, from_tty)
1228 /* Kill the inferior process. Make it go away. */
1230 extern void target_kill (void);
1232 /* Load an executable file into the target process. This is expected
1233 to not only bring new code into the target process, but also to
1234 update GDB's symbol tables to match.
1236 ARG contains command-line arguments, to be broken down with
1237 buildargv (). The first non-switch argument is the filename to
1238 load, FILE; the second is a number (as parsed by strtoul (..., ...,
1239 0)), which is an offset to apply to the load addresses of FILE's
1240 sections. The target may define switches, or other non-switch
1241 arguments, as it pleases. */
1243 extern void target_load (char *arg, int from_tty);
1245 /* Start an inferior process and set inferior_ptid to its pid.
1246 EXEC_FILE is the file to run.
1247 ALLARGS is a string containing the arguments to the program.
1248 ENV is the environment vector to pass. Errors reported with error().
1249 On VxWorks and various standalone systems, we ignore exec_file. */
1251 void target_create_inferior (char *exec_file, char *args,
1252 char **env, int from_tty);
1254 /* Some targets (such as ttrace-based HPUX) don't allow us to request
1255 notification of inferior events such as fork and vork immediately
1256 after the inferior is created. (This because of how gdb gets an
1257 inferior created via invoking a shell to do it. In such a scenario,
1258 if the shell init file has commands in it, the shell will fork and
1259 exec for each of those commands, and we will see each such fork
1262 Such targets will supply an appropriate definition for this function. */
1264 #define target_post_startup_inferior(ptid) \
1265 (*current_target.to_post_startup_inferior) (ptid)
1267 /* On some targets, we can catch an inferior fork or vfork event when
1268 it occurs. These functions insert/remove an already-created
1269 catchpoint for such events. They return 0 for success, 1 if the
1270 catchpoint type is not supported and -1 for failure. */
1272 #define target_insert_fork_catchpoint(pid) \
1273 (*current_target.to_insert_fork_catchpoint) (pid)
1275 #define target_remove_fork_catchpoint(pid) \
1276 (*current_target.to_remove_fork_catchpoint) (pid)
1278 #define target_insert_vfork_catchpoint(pid) \
1279 (*current_target.to_insert_vfork_catchpoint) (pid)
1281 #define target_remove_vfork_catchpoint(pid) \
1282 (*current_target.to_remove_vfork_catchpoint) (pid)
1284 /* If the inferior forks or vforks, this function will be called at
1285 the next resume in order to perform any bookkeeping and fiddling
1286 necessary to continue debugging either the parent or child, as
1287 requested, and releasing the other. Information about the fork
1288 or vfork event is available via get_last_target_status ().
1289 This function returns 1 if the inferior should not be resumed
1290 (i.e. there is another event pending). */
1292 int target_follow_fork (int follow_child);
1294 /* On some targets, we can catch an inferior exec event when it
1295 occurs. These functions insert/remove an already-created
1296 catchpoint for such events. They return 0 for success, 1 if the
1297 catchpoint type is not supported and -1 for failure. */
1299 #define target_insert_exec_catchpoint(pid) \
1300 (*current_target.to_insert_exec_catchpoint) (pid)
1302 #define target_remove_exec_catchpoint(pid) \
1303 (*current_target.to_remove_exec_catchpoint) (pid)
1307 NEEDED is nonzero if any syscall catch (of any kind) is requested.
1308 If NEEDED is zero, it means the target can disable the mechanism to
1309 catch system calls because there are no more catchpoints of this type.
1311 ANY_COUNT is nonzero if a generic (filter-less) syscall catch is
1312 being requested. In this case, both TABLE_SIZE and TABLE should
1315 TABLE_SIZE is the number of elements in TABLE. It only matters if
1318 TABLE is an array of ints, indexed by syscall number. An element in
1319 this array is nonzero if that syscall should be caught. This argument
1320 only matters if ANY_COUNT is zero.
1322 Return 0 for success, 1 if syscall catchpoints are not supported or -1
1325 #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \
1326 (*current_target.to_set_syscall_catchpoint) (pid, needed, any_count, \
1329 /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
1330 exit code of PID, if any. */
1332 #define target_has_exited(pid,wait_status,exit_status) \
1333 (*current_target.to_has_exited) (pid,wait_status,exit_status)
1335 /* The debugger has completed a blocking wait() call. There is now
1336 some process event that must be processed. This function should
1337 be defined by those targets that require the debugger to perform
1338 cleanup or internal state changes in response to the process event. */
1340 /* The inferior process has died. Do what is right. */
1342 void target_mourn_inferior (void);
1344 /* Does target have enough data to do a run or attach command? */
1346 #define target_can_run(t) \
1347 ((t)->to_can_run) ()
1349 /* Set list of signals to be handled in the target.
1351 PASS_SIGNALS is an array of size NSIG, indexed by target signal number
1352 (enum gdb_signal). For every signal whose entry in this array is
1353 non-zero, the target is allowed -but not required- to skip reporting
1354 arrival of the signal to the GDB core by returning from target_wait,
1355 and to pass the signal directly to the inferior instead.
1357 However, if the target is hardware single-stepping a thread that is
1358 about to receive a signal, it needs to be reported in any case, even
1359 if mentioned in a previous target_pass_signals call. */
1361 extern void target_pass_signals (int nsig, unsigned char *pass_signals);
1363 /* Set list of signals the target may pass to the inferior. This
1364 directly maps to the "handle SIGNAL pass/nopass" setting.
1366 PROGRAM_SIGNALS is an array of size NSIG, indexed by target signal
1367 number (enum gdb_signal). For every signal whose entry in this
1368 array is non-zero, the target is allowed to pass the signal to the
1369 inferior. Signals not present in the array shall be silently
1370 discarded. This does not influence whether to pass signals to the
1371 inferior as a result of a target_resume call. This is useful in
1372 scenarios where the target needs to decide whether to pass or not a
1373 signal to the inferior without GDB core involvement, such as for
1374 example, when detaching (as threads may have been suspended with
1375 pending signals not reported to GDB). */
1377 extern void target_program_signals (int nsig, unsigned char *program_signals);
1379 /* Check to see if a thread is still alive. */
1381 extern int target_thread_alive (ptid_t ptid);
1383 /* Query for new threads and add them to the thread list. */
1385 extern void target_find_new_threads (void);
1387 /* Make target stop in a continuable fashion. (For instance, under
1388 Unix, this should act like SIGSTOP). This function is normally
1389 used by GUIs to implement a stop button. */
1391 extern void target_stop (ptid_t ptid);
1393 /* Send the specified COMMAND to the target's monitor
1394 (shell,interpreter) for execution. The result of the query is
1395 placed in OUTBUF. */
1397 #define target_rcmd(command, outbuf) \
1398 (*current_target.to_rcmd) (command, outbuf)
1401 /* Does the target include all of memory, or only part of it? This
1402 determines whether we look up the target chain for other parts of
1403 memory if this target can't satisfy a request. */
1405 extern int target_has_all_memory_1 (void);
1406 #define target_has_all_memory target_has_all_memory_1 ()
1408 /* Does the target include memory? (Dummy targets don't.) */
1410 extern int target_has_memory_1 (void);
1411 #define target_has_memory target_has_memory_1 ()
1413 /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until
1414 we start a process.) */
1416 extern int target_has_stack_1 (void);
1417 #define target_has_stack target_has_stack_1 ()
1419 /* Does the target have registers? (Exec files don't.) */
1421 extern int target_has_registers_1 (void);
1422 #define target_has_registers target_has_registers_1 ()
1424 /* Does the target have execution? Can we make it jump (through
1425 hoops), or pop its stack a few times? This means that the current
1426 target is currently executing; for some targets, that's the same as
1427 whether or not the target is capable of execution, but there are
1428 also targets which can be current while not executing. In that
1429 case this will become true after target_create_inferior or
1432 extern int target_has_execution_1 (ptid_t);
1434 /* Like target_has_execution_1, but always passes inferior_ptid. */
1436 extern int target_has_execution_current (void);
1438 #define target_has_execution target_has_execution_current ()
1440 /* Default implementations for process_stratum targets. Return true
1441 if there's a selected inferior, false otherwise. */
1443 extern int default_child_has_all_memory (struct target_ops *ops);
1444 extern int default_child_has_memory (struct target_ops *ops);
1445 extern int default_child_has_stack (struct target_ops *ops);
1446 extern int default_child_has_registers (struct target_ops *ops);
1447 extern int default_child_has_execution (struct target_ops *ops,
1450 /* Can the target support the debugger control of thread execution?
1451 Can it lock the thread scheduler? */
1453 #define target_can_lock_scheduler \
1454 (current_target.to_has_thread_control & tc_schedlock)
1456 /* Should the target enable async mode if it is supported? Temporary
1457 cludge until async mode is a strict superset of sync mode. */
1458 extern int target_async_permitted;
1460 /* Can the target support asynchronous execution? */
1461 #define target_can_async_p() (current_target.to_can_async_p ())
1463 /* Is the target in asynchronous execution mode? */
1464 #define target_is_async_p() (current_target.to_is_async_p ())
1466 int target_supports_non_stop (void);
1468 /* Put the target in async mode with the specified callback function. */
1469 #define target_async(CALLBACK,CONTEXT) \
1470 (current_target.to_async ((CALLBACK), (CONTEXT)))
1472 #define target_execution_direction() \
1473 (current_target.to_execution_direction ())
1475 /* Converts a process id to a string. Usually, the string just contains
1476 `process xyz', but on some systems it may contain
1477 `process xyz thread abc'. */
1479 extern char *target_pid_to_str (ptid_t ptid);
1481 extern char *normal_pid_to_str (ptid_t ptid);
1483 /* Return a short string describing extra information about PID,
1484 e.g. "sleeping", "runnable", "running on LWP 3". Null return value
1487 #define target_extra_thread_info(TP) \
1488 (current_target.to_extra_thread_info (TP))
1490 /* Return the thread's name. A NULL result means that the target
1491 could not determine this thread's name. */
1493 extern char *target_thread_name (struct thread_info *);
1495 /* Attempts to find the pathname of the executable file
1496 that was run to create a specified process.
1498 The process PID must be stopped when this operation is used.
1500 If the executable file cannot be determined, NULL is returned.
1502 Else, a pointer to a character string containing the pathname
1503 is returned. This string should be copied into a buffer by
1504 the client if the string will not be immediately used, or if
1507 #define target_pid_to_exec_file(pid) \
1508 (current_target.to_pid_to_exec_file) (pid)
1510 /* See the to_thread_architecture description in struct target_ops. */
1512 #define target_thread_architecture(ptid) \
1513 (current_target.to_thread_architecture (¤t_target, ptid))
1516 * Iterator function for target memory regions.
1517 * Calls a callback function once for each memory region 'mapped'
1518 * in the child process. Defined as a simple macro rather than
1519 * as a function macro so that it can be tested for nullity.
1522 #define target_find_memory_regions(FUNC, DATA) \
1523 (current_target.to_find_memory_regions) (FUNC, DATA)
1526 * Compose corefile .note section.
1529 #define target_make_corefile_notes(BFD, SIZE_P) \
1530 (current_target.to_make_corefile_notes) (BFD, SIZE_P)
1532 /* Bookmark interfaces. */
1533 #define target_get_bookmark(ARGS, FROM_TTY) \
1534 (current_target.to_get_bookmark) (ARGS, FROM_TTY)
1536 #define target_goto_bookmark(ARG, FROM_TTY) \
1537 (current_target.to_goto_bookmark) (ARG, FROM_TTY)
1539 /* Hardware watchpoint interfaces. */
1541 /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or
1542 write). Only the INFERIOR_PTID task is being queried. */
1544 #define target_stopped_by_watchpoint \
1545 (*current_target.to_stopped_by_watchpoint)
1547 /* Non-zero if we have steppable watchpoints */
1549 #define target_have_steppable_watchpoint \
1550 (current_target.to_have_steppable_watchpoint)
1552 /* Non-zero if we have continuable watchpoints */
1554 #define target_have_continuable_watchpoint \
1555 (current_target.to_have_continuable_watchpoint)
1557 /* Provide defaults for hardware watchpoint functions. */
1559 /* If the *_hw_beakpoint functions have not been defined
1560 elsewhere use the definitions in the target vector. */
1562 /* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is
1563 one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or
1564 bp_hardware_breakpoint. CNT is the number of such watchpoints used so far
1565 (including this one?). OTHERTYPE is who knows what... */
1567 #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \
1568 (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE);
1570 /* Returns the number of debug registers needed to watch the given
1571 memory region, or zero if not supported. */
1573 #define target_region_ok_for_hw_watchpoint(addr, len) \
1574 (*current_target.to_region_ok_for_hw_watchpoint) (addr, len)
1577 /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes.
1578 TYPE is 0 for write, 1 for read, and 2 for read/write accesses.
1579 COND is the expression for its condition, or NULL if there's none.
1580 Returns 0 for success, 1 if the watchpoint type is not supported,
1583 #define target_insert_watchpoint(addr, len, type, cond) \
1584 (*current_target.to_insert_watchpoint) (addr, len, type, cond)
1586 #define target_remove_watchpoint(addr, len, type, cond) \
1587 (*current_target.to_remove_watchpoint) (addr, len, type, cond)
1589 /* Insert a new masked watchpoint at ADDR using the mask MASK.
1590 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1591 or hw_access for an access watchpoint. Returns 0 for success, 1 if
1592 masked watchpoints are not supported, -1 for failure. */
1594 extern int target_insert_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
1596 /* Remove a masked watchpoint at ADDR with the mask MASK.
1597 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1598 or hw_access for an access watchpoint. Returns 0 for success, non-zero
1601 extern int target_remove_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
1603 #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
1604 (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt)
1606 #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
1607 (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt)
1609 /* Return number of debug registers needed for a ranged breakpoint,
1610 or -1 if ranged breakpoints are not supported. */
1612 extern int target_ranged_break_num_registers (void);
1614 /* Return non-zero if target knows the data address which triggered this
1615 target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the
1616 INFERIOR_PTID task is being queried. */
1617 #define target_stopped_data_address(target, addr_p) \
1618 (*target.to_stopped_data_address) (target, addr_p)
1620 /* Return non-zero if ADDR is within the range of a watchpoint spanning
1621 LENGTH bytes beginning at START. */
1622 #define target_watchpoint_addr_within_range(target, addr, start, length) \
1623 (*target.to_watchpoint_addr_within_range) (target, addr, start, length)
1625 /* Return non-zero if the target is capable of using hardware to evaluate
1626 the condition expression. In this case, if the condition is false when
1627 the watched memory location changes, execution may continue without the
1628 debugger being notified.
1630 Due to limitations in the hardware implementation, it may be capable of
1631 avoiding triggering the watchpoint in some cases where the condition
1632 expression is false, but may report some false positives as well.
1633 For this reason, GDB will still evaluate the condition expression when
1634 the watchpoint triggers. */
1635 #define target_can_accel_watchpoint_condition(addr, len, type, cond) \
1636 (*current_target.to_can_accel_watchpoint_condition) (addr, len, type, cond)
1638 /* Return number of debug registers needed for a masked watchpoint,
1639 -1 if masked watchpoints are not supported or -2 if the given address
1640 and mask combination cannot be used. */
1642 extern int target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask);
1644 /* Target can execute in reverse? */
1645 #define target_can_execute_reverse \
1646 (current_target.to_can_execute_reverse ? \
1647 current_target.to_can_execute_reverse () : 0)
1649 extern const struct target_desc *target_read_description (struct target_ops *);
1651 #define target_get_ada_task_ptid(lwp, tid) \
1652 (*current_target.to_get_ada_task_ptid) (lwp,tid)
1654 /* Utility implementation of searching memory. */
1655 extern int simple_search_memory (struct target_ops* ops,
1656 CORE_ADDR start_addr,
1657 ULONGEST search_space_len,
1658 const gdb_byte *pattern,
1659 ULONGEST pattern_len,
1660 CORE_ADDR *found_addrp);
1662 /* Main entry point for searching memory. */
1663 extern int target_search_memory (CORE_ADDR start_addr,
1664 ULONGEST search_space_len,
1665 const gdb_byte *pattern,
1666 ULONGEST pattern_len,
1667 CORE_ADDR *found_addrp);
1669 /* Target file operations. */
1671 /* Open FILENAME on the target, using FLAGS and MODE. Return a
1672 target file descriptor, or -1 if an error occurs (and set
1674 extern int target_fileio_open (const char *filename, int flags, int mode,
1677 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
1678 Return the number of bytes written, or -1 if an error occurs
1679 (and set *TARGET_ERRNO). */
1680 extern int target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
1681 ULONGEST offset, int *target_errno);
1683 /* Read up to LEN bytes FD on the target into READ_BUF.
1684 Return the number of bytes read, or -1 if an error occurs
1685 (and set *TARGET_ERRNO). */
1686 extern int target_fileio_pread (int fd, gdb_byte *read_buf, int len,
1687 ULONGEST offset, int *target_errno);
1689 /* Close FD on the target. Return 0, or -1 if an error occurs
1690 (and set *TARGET_ERRNO). */
1691 extern int target_fileio_close (int fd, int *target_errno);
1693 /* Unlink FILENAME on the target. Return 0, or -1 if an error
1694 occurs (and set *TARGET_ERRNO). */
1695 extern int target_fileio_unlink (const char *filename, int *target_errno);
1697 /* Read value of symbolic link FILENAME on the target. Return a
1698 null-terminated string allocated via xmalloc, or NULL if an error
1699 occurs (and set *TARGET_ERRNO). */
1700 extern char *target_fileio_readlink (const char *filename, int *target_errno);
1702 /* Read target file FILENAME. The return value will be -1 if the transfer
1703 fails or is not supported; 0 if the object is empty; or the length
1704 of the object otherwise. If a positive value is returned, a
1705 sufficiently large buffer will be allocated using xmalloc and
1706 returned in *BUF_P containing the contents of the object.
1708 This method should be used for objects sufficiently small to store
1709 in a single xmalloc'd buffer, when no fixed bound on the object's
1710 size is known in advance. */
1711 extern LONGEST target_fileio_read_alloc (const char *filename,
1714 /* Read target file FILENAME. The result is NUL-terminated and
1715 returned as a string, allocated using xmalloc. If an error occurs
1716 or the transfer is unsupported, NULL is returned. Empty objects
1717 are returned as allocated but empty strings. A warning is issued
1718 if the result contains any embedded NUL bytes. */
1719 extern char *target_fileio_read_stralloc (const char *filename);
1722 /* Tracepoint-related operations. */
1724 #define target_trace_init() \
1725 (*current_target.to_trace_init) ()
1727 #define target_download_tracepoint(t) \
1728 (*current_target.to_download_tracepoint) (t)
1730 #define target_can_download_tracepoint() \
1731 (*current_target.to_can_download_tracepoint) ()
1733 #define target_download_trace_state_variable(tsv) \
1734 (*current_target.to_download_trace_state_variable) (tsv)
1736 #define target_enable_tracepoint(loc) \
1737 (*current_target.to_enable_tracepoint) (loc)
1739 #define target_disable_tracepoint(loc) \
1740 (*current_target.to_disable_tracepoint) (loc)
1742 #define target_trace_start() \
1743 (*current_target.to_trace_start) ()
1745 #define target_trace_set_readonly_regions() \
1746 (*current_target.to_trace_set_readonly_regions) ()
1748 #define target_get_trace_status(ts) \
1749 (*current_target.to_get_trace_status) (ts)
1751 #define target_get_tracepoint_status(tp,utp) \
1752 (*current_target.to_get_tracepoint_status) (tp, utp)
1754 #define target_trace_stop() \
1755 (*current_target.to_trace_stop) ()
1757 #define target_trace_find(type,num,addr1,addr2,tpp) \
1758 (*current_target.to_trace_find) ((type), (num), (addr1), (addr2), (tpp))
1760 #define target_get_trace_state_variable_value(tsv,val) \
1761 (*current_target.to_get_trace_state_variable_value) ((tsv), (val))
1763 #define target_save_trace_data(filename) \
1764 (*current_target.to_save_trace_data) (filename)
1766 #define target_upload_tracepoints(utpp) \
1767 (*current_target.to_upload_tracepoints) (utpp)
1769 #define target_upload_trace_state_variables(utsvp) \
1770 (*current_target.to_upload_trace_state_variables) (utsvp)
1772 #define target_get_raw_trace_data(buf,offset,len) \
1773 (*current_target.to_get_raw_trace_data) ((buf), (offset), (len))
1775 #define target_get_min_fast_tracepoint_insn_len() \
1776 (*current_target.to_get_min_fast_tracepoint_insn_len) ()
1778 #define target_set_disconnected_tracing(val) \
1779 (*current_target.to_set_disconnected_tracing) (val)
1781 #define target_set_circular_trace_buffer(val) \
1782 (*current_target.to_set_circular_trace_buffer) (val)
1784 #define target_set_trace_buffer_size(val) \
1785 (*current_target.to_set_trace_buffer_size) (val)
1787 #define target_set_trace_notes(user,notes,stopnotes) \
1788 (*current_target.to_set_trace_notes) ((user), (notes), (stopnotes))
1790 #define target_get_tib_address(ptid, addr) \
1791 (*current_target.to_get_tib_address) ((ptid), (addr))
1793 #define target_set_permissions() \
1794 (*current_target.to_set_permissions) ()
1796 #define target_static_tracepoint_marker_at(addr, marker) \
1797 (*current_target.to_static_tracepoint_marker_at) (addr, marker)
1799 #define target_static_tracepoint_markers_by_strid(marker_id) \
1800 (*current_target.to_static_tracepoint_markers_by_strid) (marker_id)
1802 #define target_traceframe_info() \
1803 (*current_target.to_traceframe_info) ()
1805 #define target_use_agent(use) \
1806 (*current_target.to_use_agent) (use)
1808 #define target_can_use_agent() \
1809 (*current_target.to_can_use_agent) ()
1811 /* Command logging facility. */
1813 #define target_log_command(p) \
1815 if (current_target.to_log_command) \
1816 (*current_target.to_log_command) (p); \
1820 extern int target_core_of_thread (ptid_t ptid);
1822 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches
1823 the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0
1824 if there's a mismatch, and -1 if an error is encountered while
1825 reading memory. Throws an error if the functionality is found not
1826 to be supported by the current target. */
1827 int target_verify_memory (const gdb_byte *data,
1828 CORE_ADDR memaddr, ULONGEST size);
1830 /* Routines for maintenance of the target structures...
1832 add_target: Add a target to the list of all possible targets.
1834 push_target: Make this target the top of the stack of currently used
1835 targets, within its particular stratum of the stack. Result
1836 is 0 if now atop the stack, nonzero if not on top (maybe
1839 unpush_target: Remove this from the stack of currently used targets,
1840 no matter where it is on the list. Returns 0 if no
1841 change, 1 if removed from stack.
1843 pop_target: Remove the top thing on the stack of current targets. */
1845 extern void add_target (struct target_ops *);
1847 extern void add_target_with_completer (struct target_ops *t,
1848 completer_ftype *completer);
1850 /* Adds a command ALIAS for target T and marks it deprecated. This is useful
1851 for maintaining backwards compatibility when renaming targets. */
1853 extern void add_deprecated_target_alias (struct target_ops *t, char *alias);
1855 extern void push_target (struct target_ops *);
1857 extern int unpush_target (struct target_ops *);
1859 extern void target_pre_inferior (int);
1861 extern void target_preopen (int);
1863 extern void pop_target (void);
1865 /* Does whatever cleanup is required to get rid of all pushed targets. */
1866 extern void pop_all_targets (void);
1868 /* Like pop_all_targets, but pops only targets whose stratum is
1869 strictly above ABOVE_STRATUM. */
1870 extern void pop_all_targets_above (enum strata above_stratum);
1872 extern int target_is_pushed (struct target_ops *t);
1874 extern CORE_ADDR target_translate_tls_address (struct objfile *objfile,
1877 /* Struct target_section maps address ranges to file sections. It is
1878 mostly used with BFD files, but can be used without (e.g. for handling
1879 raw disks, or files not in formats handled by BFD). */
1881 struct target_section
1883 CORE_ADDR addr; /* Lowest address in section */
1884 CORE_ADDR endaddr; /* 1+highest address in section */
1886 struct bfd_section *the_bfd_section;
1888 /* A given BFD may appear multiple times in the target section
1889 list, so each BFD is associated with a given key. The key is
1890 just some convenient pointer that can be used to differentiate
1891 the BFDs. These are managed only by convention. */
1894 bfd *bfd; /* BFD file pointer */
1897 /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */
1899 struct target_section_table
1901 struct target_section *sections;
1902 struct target_section *sections_end;
1905 /* Return the "section" containing the specified address. */
1906 struct target_section *target_section_by_addr (struct target_ops *target,
1909 /* Return the target section table this target (or the targets
1910 beneath) currently manipulate. */
1912 extern struct target_section_table *target_get_section_table
1913 (struct target_ops *target);
1915 /* From mem-break.c */
1917 extern int memory_remove_breakpoint (struct gdbarch *,
1918 struct bp_target_info *);
1920 extern int memory_insert_breakpoint (struct gdbarch *,
1921 struct bp_target_info *);
1923 extern int default_memory_remove_breakpoint (struct gdbarch *,
1924 struct bp_target_info *);
1926 extern int default_memory_insert_breakpoint (struct gdbarch *,
1927 struct bp_target_info *);
1932 extern void initialize_targets (void);
1934 extern void noprocess (void) ATTRIBUTE_NORETURN;
1936 extern void target_require_runnable (void);
1938 extern void find_default_attach (struct target_ops *, char *, int);
1940 extern void find_default_create_inferior (struct target_ops *,
1941 char *, char *, char **, int);
1943 extern struct target_ops *find_run_target (void);
1945 extern struct target_ops *find_target_beneath (struct target_ops *);
1947 /* Read OS data object of type TYPE from the target, and return it in
1948 XML format. The result is NUL-terminated and returned as a string,
1949 allocated using xmalloc. If an error occurs or the transfer is
1950 unsupported, NULL is returned. Empty objects are returned as
1951 allocated but empty strings. */
1953 extern char *target_get_osdata (const char *type);
1956 /* Stuff that should be shared among the various remote targets. */
1958 /* Debugging level. 0 is off, and non-zero values mean to print some debug
1959 information (higher values, more information). */
1960 extern int remote_debug;
1962 /* Speed in bits per second, or -1 which means don't mess with the speed. */
1963 extern int baud_rate;
1964 /* Timeout limit for response from target. */
1965 extern int remote_timeout;
1969 /* Set the show memory breakpoints mode to show, and installs a cleanup
1970 to restore it back to the current value. */
1971 extern struct cleanup *make_show_memory_breakpoints_cleanup (int show);
1973 extern int may_write_registers;
1974 extern int may_write_memory;
1975 extern int may_insert_breakpoints;
1976 extern int may_insert_tracepoints;
1977 extern int may_insert_fast_tracepoints;
1978 extern int may_stop;
1980 extern void update_target_permissions (void);
1983 /* Imported from machine dependent code. */
1985 /* Blank target vector entries are initialized to target_ignore. */
1986 void target_ignore (void);
1988 /* See to_supports_btrace in struct target_ops. */
1989 extern int target_supports_btrace (void);
1991 /* See to_enable_btrace in struct target_ops. */
1992 extern struct btrace_target_info *target_enable_btrace (ptid_t ptid);
1994 /* See to_disable_btrace in struct target_ops. */
1995 extern void target_disable_btrace (struct btrace_target_info *btinfo);
1997 /* See to_teardown_btrace in struct target_ops. */
1998 extern void target_teardown_btrace (struct btrace_target_info *btinfo);
2000 /* See to_read_btrace in struct target_ops. */
2001 extern VEC (btrace_block_s) *target_read_btrace (struct btrace_target_info *,
2002 enum btrace_read_type);
2004 /* See to_stop_recording in struct target_ops. */
2005 extern void target_stop_recording (void);
2007 /* See to_info_record in struct target_ops. */
2008 extern void target_info_record (void);
2010 /* See to_save_record in struct target_ops. */
2011 extern void target_save_record (char *filename);
2013 /* Query if the target supports deleting the execution log. */
2014 extern int target_supports_delete_record (void);
2016 /* See to_delete_record in struct target_ops. */
2017 extern void target_delete_record (void);
2019 /* See to_record_is_replaying in struct target_ops. */
2020 extern int target_record_is_replaying (void);
2022 /* See to_goto_record_begin in struct target_ops. */
2023 extern void target_goto_record_begin (void);
2025 /* See to_goto_record_end in struct target_ops. */
2026 extern void target_goto_record_end (void);
2028 /* See to_goto_record in struct target_ops. */
2029 extern void target_goto_record (ULONGEST insn);
2031 /* See to_insn_history. */
2032 extern void target_insn_history (int size, int flags);
2034 /* See to_insn_history_from. */
2035 extern void target_insn_history_from (ULONGEST from, int size, int flags);
2037 /* See to_insn_history_range. */
2038 extern void target_insn_history_range (ULONGEST begin, ULONGEST end, int flags);
2040 /* See to_call_history. */
2041 extern void target_call_history (int size, int flags);
2043 /* See to_call_history_from. */
2044 extern void target_call_history_from (ULONGEST begin, int size, int flags);
2046 /* See to_call_history_range. */
2047 extern void target_call_history_range (ULONGEST begin, ULONGEST end, int flags);
2049 #endif /* !defined (TARGET_H) */