1 /* Interface between GDB and target environments, including files and processes
3 Copyright (C) 1990-2014 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
;
42 /* This include file defines the interface between the main part
43 of the debugger, and the part which is target-specific, or
44 specific to the communications interface between us and the
47 A TARGET is an interface between the debugger and a particular
48 kind of file or process. Targets can be STACKED in STRATA,
49 so that more than one target can potentially respond to a request.
50 In particular, memory accesses will walk down the stack of targets
51 until they find a target that is interested in handling that particular
52 address. STRATA are artificial boundaries on the stack, within
53 which particular kinds of targets live. Strata exist so that
54 people don't get confused by pushing e.g. a process target and then
55 a file target, and wondering why they can't see the current values
56 of variables any more (the file target is handling them and they
57 never get to the process target). So when you push a file target,
58 it goes into the file stratum, which is always below the process
61 #include "target/resume.h"
62 #include "target/wait.h"
63 #include "target/waitstatus.h"
68 #include "gdb_signals.h"
74 dummy_stratum
, /* The lowest of the low */
75 file_stratum
, /* Executable files, etc */
76 process_stratum
, /* Executing processes or core dump files */
77 thread_stratum
, /* Executing threads */
78 record_stratum
, /* Support record debugging */
79 arch_stratum
/* Architecture overrides */
82 enum thread_control_capabilities
84 tc_none
= 0, /* Default: can't control thread execution. */
85 tc_schedlock
= 1, /* Can lock the thread scheduler. */
88 /* The structure below stores information about a system call.
89 It is basically used in the "catch syscall" command, and in
90 every function that gives information about a system call.
92 It's also good to mention that its fields represent everything
93 that we currently know about a syscall in GDB. */
96 /* The syscall number. */
99 /* The syscall name. */
103 /* Return a pretty printed form of target_waitstatus.
104 Space for the result is malloc'd, caller must free. */
105 extern char *target_waitstatus_to_string (const struct target_waitstatus
*);
107 /* Return a pretty printed form of TARGET_OPTIONS.
108 Space for the result is malloc'd, caller must free. */
109 extern char *target_options_to_string (int target_options
);
111 /* Possible types of events that the inferior handler will have to
113 enum inferior_event_type
115 /* Process a normal inferior event which will result in target_wait
118 /* We are called because a timer went off. */
120 /* We are called to do stuff after the inferior stops. */
122 /* We are called to do some stuff after the inferior stops, but we
123 are expected to reenter the proceed() and
124 handle_inferior_event() functions. This is used only in case of
125 'step n' like commands. */
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. */
203 /* Possible future objects: TARGET_OBJECT_FILE, ... */
206 /* Possible values returned by target_xfer_partial, etc. */
208 enum target_xfer_status
210 /* Some bytes are transferred. */
213 /* No further transfer is possible. */
216 /* Generic I/O error. Note that it's important that this is '-1',
217 as we still have target_xfer-related code returning hardcoded
219 TARGET_XFER_E_IO
= -1,
221 /* Transfer failed because the piece of the object requested is
223 TARGET_XFER_E_UNAVAILABLE
= -2,
225 /* Keep list in sync with target_xfer_error_to_string. */
228 #define TARGET_XFER_STATUS_ERROR_P(STATUS) ((STATUS) < TARGET_XFER_EOF)
230 /* Return the string form of ERR. */
232 extern const char *target_xfer_status_to_string (enum target_xfer_status err
);
234 /* Enumeration of the kinds of traceframe searches that a target may
235 be able to perform. */
246 typedef struct static_tracepoint_marker
*static_tracepoint_marker_p
;
247 DEF_VEC_P(static_tracepoint_marker_p
);
249 typedef enum target_xfer_status
250 target_xfer_partial_ftype (struct target_ops
*ops
,
251 enum target_object object
,
254 const gdb_byte
*writebuf
,
257 ULONGEST
*xfered_len
);
259 /* Request that OPS transfer up to LEN 8-bit bytes of the target's
260 OBJECT. The OFFSET, for a seekable object, specifies the
261 starting point. The ANNEX can be used to provide additional
262 data-specific information to the target.
264 Return the number of bytes actually transfered, or a negative error
265 code (an 'enum target_xfer_error' value) if the transfer is not
266 supported or otherwise fails. Return of a positive value less than
267 LEN indicates that no further transfer is possible. Unlike the raw
268 to_xfer_partial interface, callers of these functions do not need
269 to retry partial transfers. */
271 extern LONGEST
target_read (struct target_ops
*ops
,
272 enum target_object object
,
273 const char *annex
, gdb_byte
*buf
,
274 ULONGEST offset
, LONGEST len
);
276 struct memory_read_result
278 /* First address that was read. */
280 /* Past-the-end address. */
285 typedef struct memory_read_result memory_read_result_s
;
286 DEF_VEC_O(memory_read_result_s
);
288 extern void free_memory_read_result_vector (void *);
290 extern VEC(memory_read_result_s
)* read_memory_robust (struct target_ops
*ops
,
294 extern LONGEST
target_write (struct target_ops
*ops
,
295 enum target_object object
,
296 const char *annex
, const gdb_byte
*buf
,
297 ULONGEST offset
, LONGEST len
);
299 /* Similar to target_write, except that it also calls PROGRESS with
300 the number of bytes written and the opaque BATON after every
301 successful partial write (and before the first write). This is
302 useful for progress reporting and user interaction while writing
303 data. To abort the transfer, the progress callback can throw an
306 LONGEST
target_write_with_progress (struct target_ops
*ops
,
307 enum target_object object
,
308 const char *annex
, const gdb_byte
*buf
,
309 ULONGEST offset
, LONGEST len
,
310 void (*progress
) (ULONGEST
, void *),
313 /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will
314 be read using OPS. The return value will be -1 if the transfer
315 fails or is not supported; 0 if the object is empty; or the length
316 of the object otherwise. If a positive value is returned, a
317 sufficiently large buffer will be allocated using xmalloc and
318 returned in *BUF_P containing the contents of the object.
320 This method should be used for objects sufficiently small to store
321 in a single xmalloc'd buffer, when no fixed bound on the object's
322 size is known in advance. Don't try to read TARGET_OBJECT_MEMORY
323 through this function. */
325 extern LONGEST
target_read_alloc (struct target_ops
*ops
,
326 enum target_object object
,
327 const char *annex
, gdb_byte
**buf_p
);
329 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
330 returned as a string, allocated using xmalloc. If an error occurs
331 or the transfer is unsupported, NULL is returned. Empty objects
332 are returned as allocated but empty strings. A warning is issued
333 if the result contains any embedded NUL bytes. */
335 extern char *target_read_stralloc (struct target_ops
*ops
,
336 enum target_object object
,
339 /* See target_ops->to_xfer_partial. */
340 extern target_xfer_partial_ftype target_xfer_partial
;
342 /* Wrappers to target read/write that perform memory transfers. They
343 throw an error if the memory transfer fails.
345 NOTE: cagney/2003-10-23: The naming schema is lifted from
346 "frame.h". The parameter order is lifted from get_frame_memory,
347 which in turn lifted it from read_memory. */
349 extern void get_target_memory (struct target_ops
*ops
, CORE_ADDR addr
,
350 gdb_byte
*buf
, LONGEST len
);
351 extern ULONGEST
get_target_memory_unsigned (struct target_ops
*ops
,
352 CORE_ADDR addr
, int len
,
353 enum bfd_endian byte_order
);
355 struct thread_info
; /* fwd decl for parameter list below: */
357 /* The type of the callback to the to_async method. */
359 typedef void async_callback_ftype (enum inferior_event_type event_type
,
364 struct target_ops
*beneath
; /* To the target under this one. */
365 char *to_shortname
; /* Name this target type */
366 char *to_longname
; /* Name for printing */
367 char *to_doc
; /* Documentation. Does not include trailing
368 newline, and starts with a one-line descrip-
369 tion (probably similar to to_longname). */
370 /* Per-target scratch pad. */
372 /* The open routine takes the rest of the parameters from the
373 command, and (if successful) pushes a new target onto the
374 stack. Targets should supply this routine, if only to provide
376 void (*to_open
) (char *, int);
377 /* Old targets with a static target vector provide "to_close".
378 New re-entrant targets provide "to_xclose" and that is expected
379 to xfree everything (including the "struct target_ops"). */
380 void (*to_xclose
) (struct target_ops
*targ
);
381 void (*to_close
) (void);
382 void (*to_attach
) (struct target_ops
*ops
, char *, int);
383 void (*to_post_attach
) (int);
384 void (*to_detach
) (struct target_ops
*ops
, const char *, int);
385 void (*to_disconnect
) (struct target_ops
*, char *, int);
386 void (*to_resume
) (struct target_ops
*, ptid_t
, int, enum gdb_signal
);
387 ptid_t (*to_wait
) (struct target_ops
*,
388 ptid_t
, struct target_waitstatus
*, int);
389 void (*to_fetch_registers
) (struct target_ops
*, struct regcache
*, int);
390 void (*to_store_registers
) (struct target_ops
*, struct regcache
*, int);
391 void (*to_prepare_to_store
) (struct target_ops
*, struct regcache
*);
393 /* Transfer LEN bytes of memory between GDB address MYADDR and
394 target address MEMADDR. If WRITE, transfer them to the target, else
395 transfer them from the target. TARGET is the target from which we
398 Return value, N, is one of the following:
400 0 means that we can't handle this. If errno has been set, it is the
401 error which prevented us from doing it (FIXME: What about bfd_error?).
403 positive (call it N) means that we have transferred N bytes
404 starting at MEMADDR. We might be able to handle more bytes
405 beyond this length, but no promises.
407 negative (call its absolute value N) means that we cannot
408 transfer right at MEMADDR, but we could transfer at least
409 something at MEMADDR + N.
411 NOTE: cagney/2004-10-01: This has been entirely superseeded by
412 to_xfer_partial and inferior inheritance. */
414 int (*deprecated_xfer_memory
) (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
416 struct mem_attrib
*attrib
,
417 struct target_ops
*target
);
419 void (*to_files_info
) (struct target_ops
*);
420 int (*to_insert_breakpoint
) (struct target_ops
*, struct gdbarch
*,
421 struct bp_target_info
*);
422 int (*to_remove_breakpoint
) (struct target_ops
*, struct gdbarch
*,
423 struct bp_target_info
*);
424 int (*to_can_use_hw_breakpoint
) (int, int, int);
425 int (*to_ranged_break_num_registers
) (struct target_ops
*);
426 int (*to_insert_hw_breakpoint
) (struct gdbarch
*, struct bp_target_info
*);
427 int (*to_remove_hw_breakpoint
) (struct gdbarch
*, struct bp_target_info
*);
429 /* Documentation of what the two routines below are expected to do is
430 provided with the corresponding target_* macros. */
431 int (*to_remove_watchpoint
) (CORE_ADDR
, int, int, struct expression
*);
432 int (*to_insert_watchpoint
) (CORE_ADDR
, int, int, struct expression
*);
434 int (*to_insert_mask_watchpoint
) (struct target_ops
*,
435 CORE_ADDR
, CORE_ADDR
, int);
436 int (*to_remove_mask_watchpoint
) (struct target_ops
*,
437 CORE_ADDR
, CORE_ADDR
, int);
438 int (*to_stopped_by_watchpoint
) (void);
439 int to_have_steppable_watchpoint
;
440 int to_have_continuable_watchpoint
;
441 int (*to_stopped_data_address
) (struct target_ops
*, CORE_ADDR
*);
442 int (*to_watchpoint_addr_within_range
) (struct target_ops
*,
443 CORE_ADDR
, CORE_ADDR
, int);
445 /* Documentation of this routine is provided with the corresponding
447 int (*to_region_ok_for_hw_watchpoint
) (CORE_ADDR
, int);
449 int (*to_can_accel_watchpoint_condition
) (CORE_ADDR
, int, int,
450 struct expression
*);
451 int (*to_masked_watch_num_registers
) (struct target_ops
*,
452 CORE_ADDR
, CORE_ADDR
);
453 void (*to_terminal_init
) (void);
454 void (*to_terminal_inferior
) (void);
455 void (*to_terminal_ours_for_output
) (void);
456 void (*to_terminal_ours
) (void);
457 void (*to_terminal_save_ours
) (void);
458 void (*to_terminal_info
) (const char *, int);
459 void (*to_kill
) (struct target_ops
*);
460 void (*to_load
) (char *, int);
461 void (*to_create_inferior
) (struct target_ops
*,
462 char *, char *, char **, int);
463 void (*to_post_startup_inferior
) (ptid_t
);
464 int (*to_insert_fork_catchpoint
) (int);
465 int (*to_remove_fork_catchpoint
) (int);
466 int (*to_insert_vfork_catchpoint
) (int);
467 int (*to_remove_vfork_catchpoint
) (int);
468 int (*to_follow_fork
) (struct target_ops
*, int, int);
469 int (*to_insert_exec_catchpoint
) (int);
470 int (*to_remove_exec_catchpoint
) (int);
471 int (*to_set_syscall_catchpoint
) (int, int, int, int, int *);
472 int (*to_has_exited
) (int, int, int *);
473 void (*to_mourn_inferior
) (struct target_ops
*);
474 int (*to_can_run
) (void);
476 /* Documentation of this routine is provided with the corresponding
478 void (*to_pass_signals
) (int, unsigned char *);
480 /* Documentation of this routine is provided with the
481 corresponding target_* function. */
482 void (*to_program_signals
) (int, unsigned char *);
484 int (*to_thread_alive
) (struct target_ops
*, ptid_t ptid
);
485 void (*to_find_new_threads
) (struct target_ops
*);
486 char *(*to_pid_to_str
) (struct target_ops
*, ptid_t
);
487 char *(*to_extra_thread_info
) (struct thread_info
*);
488 char *(*to_thread_name
) (struct thread_info
*);
489 void (*to_stop
) (ptid_t
);
490 void (*to_rcmd
) (char *command
, struct ui_file
*output
);
491 char *(*to_pid_to_exec_file
) (int pid
);
492 void (*to_log_command
) (const char *);
493 struct target_section_table
*(*to_get_section_table
) (struct target_ops
*);
494 enum strata to_stratum
;
495 int (*to_has_all_memory
) (struct target_ops
*);
496 int (*to_has_memory
) (struct target_ops
*);
497 int (*to_has_stack
) (struct target_ops
*);
498 int (*to_has_registers
) (struct target_ops
*);
499 int (*to_has_execution
) (struct target_ops
*, ptid_t
);
500 int to_has_thread_control
; /* control thread execution */
501 int to_attach_no_wait
;
502 /* ASYNC target controls */
503 int (*to_can_async_p
) (void);
504 int (*to_is_async_p
) (void);
505 void (*to_async
) (async_callback_ftype
*, void *);
506 int (*to_supports_non_stop
) (void);
507 /* find_memory_regions support method for gcore */
508 int (*to_find_memory_regions
) (find_memory_region_ftype func
, void *data
);
509 /* make_corefile_notes support method for gcore */
510 char * (*to_make_corefile_notes
) (bfd
*, int *);
511 /* get_bookmark support method for bookmarks */
512 gdb_byte
* (*to_get_bookmark
) (char *, int);
513 /* goto_bookmark support method for bookmarks */
514 void (*to_goto_bookmark
) (gdb_byte
*, int);
515 /* Return the thread-local address at OFFSET in the
516 thread-local storage for the thread PTID and the shared library
517 or executable file given by OBJFILE. If that block of
518 thread-local storage hasn't been allocated yet, this function
519 may return an error. */
520 CORE_ADDR (*to_get_thread_local_address
) (struct target_ops
*ops
,
522 CORE_ADDR load_module_addr
,
525 /* Request that OPS transfer up to LEN 8-bit bytes of the target's
526 OBJECT. The OFFSET, for a seekable object, specifies the
527 starting point. The ANNEX can be used to provide additional
528 data-specific information to the target.
530 Return the transferred status, error or OK (an
531 'enum target_xfer_status' value). Save the number of bytes
532 actually transferred in *XFERED_LEN if transfer is successful
533 (TARGET_XFER_OK) or the number unavailable bytes if the requested
534 data is unavailable (TARGET_XFER_E_UNAVAILABLE). *XFERED_LEN
535 smaller than LEN does not indicate the end of the object, only
536 the end of the transfer; higher level code should continue
537 transferring if desired. This is handled in target.c.
539 The interface does not support a "retry" mechanism. Instead it
540 assumes that at least one byte will be transfered on each
543 NOTE: cagney/2003-10-17: The current interface can lead to
544 fragmented transfers. Lower target levels should not implement
545 hacks, such as enlarging the transfer, in an attempt to
546 compensate for this. Instead, the target stack should be
547 extended so that it implements supply/collect methods and a
548 look-aside object cache. With that available, the lowest
549 target can safely and freely "push" data up the stack.
551 See target_read and target_write for more information. One,
552 and only one, of readbuf or writebuf must be non-NULL. */
554 enum target_xfer_status (*to_xfer_partial
) (struct target_ops
*ops
,
555 enum target_object object
,
558 const gdb_byte
*writebuf
,
559 ULONGEST offset
, ULONGEST len
,
560 ULONGEST
*xfered_len
);
562 /* Returns the memory map for the target. A return value of NULL
563 means that no memory map is available. If a memory address
564 does not fall within any returned regions, it's assumed to be
565 RAM. The returned memory regions should not overlap.
567 The order of regions does not matter; target_memory_map will
568 sort regions by starting address. For that reason, this
569 function should not be called directly except via
572 This method should not cache data; if the memory map could
573 change unexpectedly, it should be invalidated, and higher
574 layers will re-fetch it. */
575 VEC(mem_region_s
) *(*to_memory_map
) (struct target_ops
*);
577 /* Erases the region of flash memory starting at ADDRESS, of
580 Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned
581 on flash block boundaries, as reported by 'to_memory_map'. */
582 void (*to_flash_erase
) (struct target_ops
*,
583 ULONGEST address
, LONGEST length
);
585 /* Finishes a flash memory write sequence. After this operation
586 all flash memory should be available for writing and the result
587 of reading from areas written by 'to_flash_write' should be
588 equal to what was written. */
589 void (*to_flash_done
) (struct target_ops
*);
591 /* Describe the architecture-specific features of this target.
592 Returns the description found, or NULL if no description
594 const struct target_desc
*(*to_read_description
) (struct target_ops
*ops
);
596 /* Build the PTID of the thread on which a given task is running,
597 based on LWP and THREAD. These values are extracted from the
598 task Private_Data section of the Ada Task Control Block, and
599 their interpretation depends on the target. */
600 ptid_t (*to_get_ada_task_ptid
) (long lwp
, long thread
);
602 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
603 Return 0 if *READPTR is already at the end of the buffer.
604 Return -1 if there is insufficient buffer for a whole entry.
605 Return 1 if an entry was read into *TYPEP and *VALP. */
606 int (*to_auxv_parse
) (struct target_ops
*ops
, gdb_byte
**readptr
,
607 gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
609 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
610 sequence of bytes in PATTERN with length PATTERN_LEN.
612 The result is 1 if found, 0 if not found, and -1 if there was an error
613 requiring halting of the search (e.g. memory read error).
614 If the pattern is found the address is recorded in FOUND_ADDRP. */
615 int (*to_search_memory
) (struct target_ops
*ops
,
616 CORE_ADDR start_addr
, ULONGEST search_space_len
,
617 const gdb_byte
*pattern
, ULONGEST pattern_len
,
618 CORE_ADDR
*found_addrp
);
620 /* Can target execute in reverse? */
621 int (*to_can_execute_reverse
) (void);
623 /* The direction the target is currently executing. Must be
624 implemented on targets that support reverse execution and async
625 mode. The default simply returns forward execution. */
626 enum exec_direction_kind (*to_execution_direction
) (void);
628 /* Does this target support debugging multiple processes
630 int (*to_supports_multi_process
) (void);
632 /* Does this target support enabling and disabling tracepoints while a trace
633 experiment is running? */
634 int (*to_supports_enable_disable_tracepoint
) (void);
636 /* Does this target support disabling address space randomization? */
637 int (*to_supports_disable_randomization
) (void);
639 /* Does this target support the tracenz bytecode for string collection? */
640 int (*to_supports_string_tracing
) (void);
642 /* Does this target support evaluation of breakpoint conditions on its
644 int (*to_supports_evaluation_of_breakpoint_conditions
) (void);
646 /* Does this target support evaluation of breakpoint commands on its
648 int (*to_can_run_breakpoint_commands
) (void);
650 /* Determine current architecture of thread PTID.
652 The target is supposed to determine the architecture of the code where
653 the target is currently stopped at (on Cell, if a target is in spu_run,
654 to_thread_architecture would return SPU, otherwise PPC32 or PPC64).
655 This is architecture used to perform decr_pc_after_break adjustment,
656 and also determines the frame architecture of the innermost frame.
657 ptrace operations need to operate according to target_gdbarch ().
659 The default implementation always returns target_gdbarch (). */
660 struct gdbarch
*(*to_thread_architecture
) (struct target_ops
*, ptid_t
);
662 /* Determine current address space of thread PTID.
664 The default implementation always returns the inferior's
666 struct address_space
*(*to_thread_address_space
) (struct target_ops
*,
669 /* Target file operations. */
671 /* Open FILENAME on the target, using FLAGS and MODE. Return a
672 target file descriptor, or -1 if an error occurs (and set
674 int (*to_fileio_open
) (const char *filename
, int flags
, int mode
,
677 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
678 Return the number of bytes written, or -1 if an error occurs
679 (and set *TARGET_ERRNO). */
680 int (*to_fileio_pwrite
) (int fd
, const gdb_byte
*write_buf
, int len
,
681 ULONGEST offset
, int *target_errno
);
683 /* Read up to LEN bytes FD on the target into READ_BUF.
684 Return the number of bytes read, or -1 if an error occurs
685 (and set *TARGET_ERRNO). */
686 int (*to_fileio_pread
) (int fd
, gdb_byte
*read_buf
, int len
,
687 ULONGEST offset
, int *target_errno
);
689 /* Close FD on the target. Return 0, or -1 if an error occurs
690 (and set *TARGET_ERRNO). */
691 int (*to_fileio_close
) (int fd
, int *target_errno
);
693 /* Unlink FILENAME on the target. Return 0, or -1 if an error
694 occurs (and set *TARGET_ERRNO). */
695 int (*to_fileio_unlink
) (const char *filename
, int *target_errno
);
697 /* Read value of symbolic link FILENAME on the target. Return a
698 null-terminated string allocated via xmalloc, or NULL if an error
699 occurs (and set *TARGET_ERRNO). */
700 char *(*to_fileio_readlink
) (const char *filename
, int *target_errno
);
703 /* Implement the "info proc" command. */
704 void (*to_info_proc
) (struct target_ops
*, char *, enum info_proc_what
);
706 /* Tracepoint-related operations. */
708 /* Prepare the target for a tracing run. */
709 void (*to_trace_init
) (void);
711 /* Send full details of a tracepoint location to the target. */
712 void (*to_download_tracepoint
) (struct bp_location
*location
);
714 /* Is the target able to download tracepoint locations in current
716 int (*to_can_download_tracepoint
) (void);
718 /* Send full details of a trace state variable to the target. */
719 void (*to_download_trace_state_variable
) (struct trace_state_variable
*tsv
);
721 /* Enable a tracepoint on the target. */
722 void (*to_enable_tracepoint
) (struct bp_location
*location
);
724 /* Disable a tracepoint on the target. */
725 void (*to_disable_tracepoint
) (struct bp_location
*location
);
727 /* Inform the target info of memory regions that are readonly
728 (such as text sections), and so it should return data from
729 those rather than look in the trace buffer. */
730 void (*to_trace_set_readonly_regions
) (void);
732 /* Start a trace run. */
733 void (*to_trace_start
) (void);
735 /* Get the current status of a tracing run. */
736 int (*to_get_trace_status
) (struct trace_status
*ts
);
738 void (*to_get_tracepoint_status
) (struct breakpoint
*tp
,
739 struct uploaded_tp
*utp
);
741 /* Stop a trace run. */
742 void (*to_trace_stop
) (void);
744 /* Ask the target to find a trace frame of the given type TYPE,
745 using NUM, ADDR1, and ADDR2 as search parameters. Returns the
746 number of the trace frame, and also the tracepoint number at
747 TPP. If no trace frame matches, return -1. May throw if the
749 int (*to_trace_find
) (enum trace_find_type type
, int num
,
750 CORE_ADDR addr1
, CORE_ADDR addr2
, int *tpp
);
752 /* Get the value of the trace state variable number TSV, returning
753 1 if the value is known and writing the value itself into the
754 location pointed to by VAL, else returning 0. */
755 int (*to_get_trace_state_variable_value
) (int tsv
, LONGEST
*val
);
757 int (*to_save_trace_data
) (const char *filename
);
759 int (*to_upload_tracepoints
) (struct uploaded_tp
**utpp
);
761 int (*to_upload_trace_state_variables
) (struct uploaded_tsv
**utsvp
);
763 LONGEST (*to_get_raw_trace_data
) (gdb_byte
*buf
,
764 ULONGEST offset
, LONGEST len
);
766 /* Get the minimum length of instruction on which a fast tracepoint
767 may be set on the target. If this operation is unsupported,
768 return -1. If for some reason the minimum length cannot be
769 determined, return 0. */
770 int (*to_get_min_fast_tracepoint_insn_len
) (void);
772 /* Set the target's tracing behavior in response to unexpected
773 disconnection - set VAL to 1 to keep tracing, 0 to stop. */
774 void (*to_set_disconnected_tracing
) (int val
);
775 void (*to_set_circular_trace_buffer
) (int val
);
776 /* Set the size of trace buffer in the target. */
777 void (*to_set_trace_buffer_size
) (LONGEST val
);
779 /* Add/change textual notes about the trace run, returning 1 if
780 successful, 0 otherwise. */
781 int (*to_set_trace_notes
) (const char *user
, const char *notes
,
782 const char *stopnotes
);
784 /* Return the processor core that thread PTID was last seen on.
785 This information is updated only when:
786 - update_thread_list is called
788 If the core cannot be determined -- either for the specified
789 thread, or right now, or in this debug session, or for this
790 target -- return -1. */
791 int (*to_core_of_thread
) (struct target_ops
*, ptid_t ptid
);
793 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range
794 matches the contents of [DATA,DATA+SIZE). Returns 1 if there's
795 a match, 0 if there's a mismatch, and -1 if an error is
796 encountered while reading memory. */
797 int (*to_verify_memory
) (struct target_ops
*, const gdb_byte
*data
,
798 CORE_ADDR memaddr
, ULONGEST size
);
800 /* Return the address of the start of the Thread Information Block
801 a Windows OS specific feature. */
802 int (*to_get_tib_address
) (ptid_t ptid
, CORE_ADDR
*addr
);
804 /* Send the new settings of write permission variables. */
805 void (*to_set_permissions
) (void);
807 /* Look for a static tracepoint marker at ADDR, and fill in MARKER
808 with its details. Return 1 on success, 0 on failure. */
809 int (*to_static_tracepoint_marker_at
) (CORE_ADDR
,
810 struct static_tracepoint_marker
*marker
);
812 /* Return a vector of all tracepoints markers string id ID, or all
813 markers if ID is NULL. */
814 VEC(static_tracepoint_marker_p
) *(*to_static_tracepoint_markers_by_strid
)
817 /* Return a traceframe info object describing the current
818 traceframe's contents. If the target doesn't support
819 traceframe info, return NULL. If the current traceframe is not
820 selected (the current traceframe number is -1), the target can
821 choose to return either NULL or an empty traceframe info. If
822 NULL is returned, for example in remote target, GDB will read
823 from the live inferior. If an empty traceframe info is
824 returned, for example in tfile target, which means the
825 traceframe info is available, but the requested memory is not
826 available in it. GDB will try to see if the requested memory
827 is available in the read-only sections. This method should not
828 cache data; higher layers take care of caching, invalidating,
829 and re-fetching when necessary. */
830 struct traceframe_info
*(*to_traceframe_info
) (void);
832 /* Ask the target to use or not to use agent according to USE. Return 1
833 successful, 0 otherwise. */
834 int (*to_use_agent
) (int use
);
836 /* Is the target able to use agent in current state? */
837 int (*to_can_use_agent
) (void);
839 /* Check whether the target supports branch tracing. */
840 int (*to_supports_btrace
) (void);
842 /* Enable branch tracing for PTID and allocate a branch trace target
843 information struct for reading and for disabling branch trace. */
844 struct btrace_target_info
*(*to_enable_btrace
) (ptid_t ptid
);
846 /* Disable branch tracing and deallocate TINFO. */
847 void (*to_disable_btrace
) (struct btrace_target_info
*tinfo
);
849 /* Disable branch tracing and deallocate TINFO. This function is similar
850 to to_disable_btrace, except that it is called during teardown and is
851 only allowed to perform actions that are safe. A counter-example would
852 be attempting to talk to a remote target. */
853 void (*to_teardown_btrace
) (struct btrace_target_info
*tinfo
);
855 /* Read branch trace data for the thread indicated by BTINFO into DATA.
856 DATA is cleared before new trace is added.
857 The branch trace will start with the most recent block and continue
858 towards older blocks. */
859 enum btrace_error (*to_read_btrace
) (VEC (btrace_block_s
) **data
,
860 struct btrace_target_info
*btinfo
,
861 enum btrace_read_type type
);
863 /* Stop trace recording. */
864 void (*to_stop_recording
) (void);
866 /* Print information about the recording. */
867 void (*to_info_record
) (void);
869 /* Save the recorded execution trace into a file. */
870 void (*to_save_record
) (const char *filename
);
872 /* Delete the recorded execution trace from the current position onwards. */
873 void (*to_delete_record
) (void);
875 /* Query if the record target is currently replaying. */
876 int (*to_record_is_replaying
) (void);
878 /* Go to the begin of the execution trace. */
879 void (*to_goto_record_begin
) (void);
881 /* Go to the end of the execution trace. */
882 void (*to_goto_record_end
) (void);
884 /* Go to a specific location in the recorded execution trace. */
885 void (*to_goto_record
) (ULONGEST insn
);
887 /* Disassemble SIZE instructions in the recorded execution trace from
888 the current position.
889 If SIZE < 0, disassemble abs (SIZE) preceding instructions; otherwise,
890 disassemble SIZE succeeding instructions. */
891 void (*to_insn_history
) (int size
, int flags
);
893 /* Disassemble SIZE instructions in the recorded execution trace around
895 If SIZE < 0, disassemble abs (SIZE) instructions before FROM; otherwise,
896 disassemble SIZE instructions after FROM. */
897 void (*to_insn_history_from
) (ULONGEST from
, int size
, int flags
);
899 /* Disassemble a section of the recorded execution trace from instruction
900 BEGIN (inclusive) to instruction END (inclusive). */
901 void (*to_insn_history_range
) (ULONGEST begin
, ULONGEST end
, int flags
);
903 /* Print a function trace of the recorded execution trace.
904 If SIZE < 0, print abs (SIZE) preceding functions; otherwise, print SIZE
905 succeeding functions. */
906 void (*to_call_history
) (int size
, int flags
);
908 /* Print a function trace of the recorded execution trace starting
910 If SIZE < 0, print abs (SIZE) functions before FROM; otherwise, print
911 SIZE functions after FROM. */
912 void (*to_call_history_from
) (ULONGEST begin
, int size
, int flags
);
914 /* Print a function trace of an execution trace section from function BEGIN
915 (inclusive) to function END (inclusive). */
916 void (*to_call_history_range
) (ULONGEST begin
, ULONGEST end
, int flags
);
918 /* Nonzero if TARGET_OBJECT_LIBRARIES_SVR4 may be read with a
920 int (*to_augmented_libraries_svr4_read
) (void);
922 /* Those unwinders are tried before any other arch unwinders. Use NULL if
924 const struct frame_unwind
*to_get_unwinder
;
925 const struct frame_unwind
*to_get_tailcall_unwinder
;
927 /* Return the number of bytes by which the PC needs to be decremented
928 after executing a breakpoint instruction.
929 Defaults to gdbarch_decr_pc_after_break (GDBARCH). */
930 CORE_ADDR (*to_decr_pc_after_break
) (struct target_ops
*ops
,
931 struct gdbarch
*gdbarch
);
934 /* Need sub-structure for target machine related rather than comm related?
938 /* Magic number for checking ops size. If a struct doesn't end with this
939 number, somebody changed the declaration but didn't change all the
940 places that initialize one. */
942 #define OPS_MAGIC 3840
944 /* The ops structure for our "current" target process. This should
945 never be NULL. If there is no target, it points to the dummy_target. */
947 extern struct target_ops current_target
;
949 /* Define easy words for doing these operations on our current target. */
951 #define target_shortname (current_target.to_shortname)
952 #define target_longname (current_target.to_longname)
954 /* Does whatever cleanup is required for a target that we are no
955 longer going to be calling. This routine is automatically always
956 called after popping the target off the target stack - the target's
957 own methods are no longer available through the target vector.
958 Closing file descriptors and freeing all memory allocated memory are
959 typical things it should do. */
961 void target_close (struct target_ops
*targ
);
963 /* Attaches to a process on the target side. Arguments are as passed
964 to the `attach' command by the user. This routine can be called
965 when the target is not on the target-stack, if the target_can_run
966 routine returns 1; in that case, it must push itself onto the stack.
967 Upon exit, the target should be ready for normal operations, and
968 should be ready to deliver the status of the process immediately
969 (without waiting) to an upcoming target_wait call. */
971 void target_attach (char *, int);
973 /* Some targets don't generate traps when attaching to the inferior,
974 or their target_attach implementation takes care of the waiting.
975 These targets must set to_attach_no_wait. */
977 #define target_attach_no_wait \
978 (current_target.to_attach_no_wait)
980 /* The target_attach operation places a process under debugger control,
981 and stops the process.
983 This operation provides a target-specific hook that allows the
984 necessary bookkeeping to be performed after an attach completes. */
985 #define target_post_attach(pid) \
986 (*current_target.to_post_attach) (pid)
988 /* Takes a program previously attached to and detaches it.
989 The program may resume execution (some targets do, some don't) and will
990 no longer stop on signals, etc. We better not have left any breakpoints
991 in the program or it'll die when it hits one. ARGS is arguments
992 typed by the user (e.g. a signal to send the process). FROM_TTY
993 says whether to be verbose or not. */
995 extern void target_detach (const char *, int);
997 /* Disconnect from the current target without resuming it (leaving it
998 waiting for a debugger). */
1000 extern void target_disconnect (char *, int);
1002 /* Resume execution of the target process PTID (or a group of
1003 threads). STEP says whether to single-step or to run free; SIGGNAL
1004 is the signal to be given to the target, or GDB_SIGNAL_0 for no
1005 signal. The caller may not pass GDB_SIGNAL_DEFAULT. A specific
1006 PTID means `step/resume only this process id'. A wildcard PTID
1007 (all threads, or all threads of process) means `step/resume
1008 INFERIOR_PTID, and let other threads (for which the wildcard PTID
1009 matches) resume with their 'thread->suspend.stop_signal' signal
1010 (usually GDB_SIGNAL_0) if it is in "pass" state, or with no signal
1011 if in "no pass" state. */
1013 extern void target_resume (ptid_t ptid
, int step
, enum gdb_signal signal
);
1015 /* Wait for process pid to do something. PTID = -1 to wait for any
1016 pid to do something. Return pid of child, or -1 in case of error;
1017 store status through argument pointer STATUS. Note that it is
1018 _NOT_ OK to throw_exception() out of target_wait() without popping
1019 the debugging target from the stack; GDB isn't prepared to get back
1020 to the prompt with a debugging target but without the frame cache,
1021 stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W*
1024 extern ptid_t
target_wait (ptid_t ptid
, struct target_waitstatus
*status
,
1027 /* Fetch at least register REGNO, or all regs if regno == -1. No result. */
1029 extern void target_fetch_registers (struct regcache
*regcache
, int regno
);
1031 /* Store at least register REGNO, or all regs if REGNO == -1.
1032 It can store as many registers as it wants to, so target_prepare_to_store
1033 must have been previously called. Calls error() if there are problems. */
1035 extern void target_store_registers (struct regcache
*regcache
, int regs
);
1037 /* Get ready to modify the registers array. On machines which store
1038 individual registers, this doesn't need to do anything. On machines
1039 which store all the registers in one fell swoop, this makes sure
1040 that REGISTERS contains all the registers from the program being
1043 #define target_prepare_to_store(regcache) \
1044 (*current_target.to_prepare_to_store) (¤t_target, regcache)
1046 /* Determine current address space of thread PTID. */
1048 struct address_space
*target_thread_address_space (ptid_t
);
1050 /* Implement the "info proc" command. This returns one if the request
1051 was handled, and zero otherwise. It can also throw an exception if
1052 an error was encountered while attempting to handle the
1055 int target_info_proc (char *, enum info_proc_what
);
1057 /* Returns true if this target can debug multiple processes
1060 #define target_supports_multi_process() \
1061 (*current_target.to_supports_multi_process) ()
1063 /* Returns true if this target can disable address space randomization. */
1065 int target_supports_disable_randomization (void);
1067 /* Returns true if this target can enable and disable tracepoints
1068 while a trace experiment is running. */
1070 #define target_supports_enable_disable_tracepoint() \
1071 (*current_target.to_supports_enable_disable_tracepoint) ()
1073 #define target_supports_string_tracing() \
1074 (*current_target.to_supports_string_tracing) ()
1076 /* Returns true if this target can handle breakpoint conditions
1079 #define target_supports_evaluation_of_breakpoint_conditions() \
1080 (*current_target.to_supports_evaluation_of_breakpoint_conditions) ()
1082 /* Returns true if this target can handle breakpoint commands
1085 #define target_can_run_breakpoint_commands() \
1086 (*current_target.to_can_run_breakpoint_commands) ()
1088 extern int target_read_string (CORE_ADDR
, char **, int, int *);
1090 extern int target_read_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
1093 extern int target_read_raw_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
1096 extern int target_read_stack (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
);
1098 extern int target_read_code (CORE_ADDR memaddr
, gdb_byte
*myaddr
, ssize_t len
);
1100 extern int target_write_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
,
1103 extern int target_write_raw_memory (CORE_ADDR memaddr
, const gdb_byte
*myaddr
,
1106 /* Fetches the target's memory map. If one is found it is sorted
1107 and returned, after some consistency checking. Otherwise, NULL
1109 VEC(mem_region_s
) *target_memory_map (void);
1111 /* Erase the specified flash region. */
1112 void target_flash_erase (ULONGEST address
, LONGEST length
);
1114 /* Finish a sequence of flash operations. */
1115 void target_flash_done (void);
1117 /* Describes a request for a memory write operation. */
1118 struct memory_write_request
1120 /* Begining address that must be written. */
1122 /* Past-the-end address. */
1124 /* The data to write. */
1126 /* A callback baton for progress reporting for this request. */
1129 typedef struct memory_write_request memory_write_request_s
;
1130 DEF_VEC_O(memory_write_request_s
);
1132 /* Enumeration specifying different flash preservation behaviour. */
1133 enum flash_preserve_mode
1139 /* Write several memory blocks at once. This version can be more
1140 efficient than making several calls to target_write_memory, in
1141 particular because it can optimize accesses to flash memory.
1143 Moreover, this is currently the only memory access function in gdb
1144 that supports writing to flash memory, and it should be used for
1145 all cases where access to flash memory is desirable.
1147 REQUESTS is the vector (see vec.h) of memory_write_request.
1148 PRESERVE_FLASH_P indicates what to do with blocks which must be
1149 erased, but not completely rewritten.
1150 PROGRESS_CB is a function that will be periodically called to provide
1151 feedback to user. It will be called with the baton corresponding
1152 to the request currently being written. It may also be called
1153 with a NULL baton, when preserved flash sectors are being rewritten.
1155 The function returns 0 on success, and error otherwise. */
1156 int target_write_memory_blocks (VEC(memory_write_request_s
) *requests
,
1157 enum flash_preserve_mode preserve_flash_p
,
1158 void (*progress_cb
) (ULONGEST
, void *));
1160 /* Print a line about the current target. */
1162 #define target_files_info() \
1163 (*current_target.to_files_info) (¤t_target)
1165 /* Insert a hardware breakpoint at address BP_TGT->placed_address in
1166 the target machine. Returns 0 for success, and returns non-zero or
1167 throws an error (with a detailed failure reason error code and
1169 Start the target search at OPS. */
1171 extern int forward_target_insert_breakpoint (struct target_ops
*ops
,
1172 struct gdbarch
*gdbarch
,
1173 struct bp_target_info
*bp_tgt
);
1175 /* Insert a hardware breakpoint at address BP_TGT->placed_address in
1176 the target machine. Returns 0 for success, and returns non-zero or
1177 throws an error (with a detailed failure reason error code and
1178 message) otherwise. */
1180 extern int target_insert_breakpoint (struct gdbarch
*gdbarch
,
1181 struct bp_target_info
*bp_tgt
);
1183 /* Remove a breakpoint at address BP_TGT->placed_address in the target
1184 machine. Result is 0 for success, non-zero for error.
1185 Start the target search at OPS. */
1187 extern int forward_target_remove_breakpoint (struct target_ops
*ops
,
1188 struct gdbarch
*gdbarch
,
1189 struct bp_target_info
*bp_tgt
);
1190 /* Remove a breakpoint at address BP_TGT->placed_address in the target
1191 machine. Result is 0 for success, non-zero for error. */
1193 extern int target_remove_breakpoint (struct gdbarch
*gdbarch
,
1194 struct bp_target_info
*bp_tgt
);
1196 /* Initialize the terminal settings we record for the inferior,
1197 before we actually run the inferior. */
1199 #define target_terminal_init() \
1200 (*current_target.to_terminal_init) ()
1202 /* Put the inferior's terminal settings into effect.
1203 This is preparation for starting or resuming the inferior. */
1205 extern void target_terminal_inferior (void);
1207 /* Put some of our terminal settings into effect,
1208 enough to get proper results from our output,
1209 but do not change into or out of RAW mode
1210 so that no input is discarded.
1212 After doing this, either terminal_ours or terminal_inferior
1213 should be called to get back to a normal state of affairs. */
1215 #define target_terminal_ours_for_output() \
1216 (*current_target.to_terminal_ours_for_output) ()
1218 /* Put our terminal settings into effect.
1219 First record the inferior's terminal settings
1220 so they can be restored properly later. */
1222 #define target_terminal_ours() \
1223 (*current_target.to_terminal_ours) ()
1225 /* Save our terminal settings.
1226 This is called from TUI after entering or leaving the curses
1227 mode. Since curses modifies our terminal this call is here
1228 to take this change into account. */
1230 #define target_terminal_save_ours() \
1231 (*current_target.to_terminal_save_ours) ()
1233 /* Print useful information about our terminal status, if such a thing
1236 #define target_terminal_info(arg, from_tty) \
1237 (*current_target.to_terminal_info) (arg, from_tty)
1239 /* Kill the inferior process. Make it go away. */
1241 extern void target_kill (void);
1243 /* Load an executable file into the target process. This is expected
1244 to not only bring new code into the target process, but also to
1245 update GDB's symbol tables to match.
1247 ARG contains command-line arguments, to be broken down with
1248 buildargv (). The first non-switch argument is the filename to
1249 load, FILE; the second is a number (as parsed by strtoul (..., ...,
1250 0)), which is an offset to apply to the load addresses of FILE's
1251 sections. The target may define switches, or other non-switch
1252 arguments, as it pleases. */
1254 extern void target_load (char *arg
, int from_tty
);
1256 /* Start an inferior process and set inferior_ptid to its pid.
1257 EXEC_FILE is the file to run.
1258 ALLARGS is a string containing the arguments to the program.
1259 ENV is the environment vector to pass. Errors reported with error().
1260 On VxWorks and various standalone systems, we ignore exec_file. */
1262 void target_create_inferior (char *exec_file
, char *args
,
1263 char **env
, int from_tty
);
1265 /* Some targets (such as ttrace-based HPUX) don't allow us to request
1266 notification of inferior events such as fork and vork immediately
1267 after the inferior is created. (This because of how gdb gets an
1268 inferior created via invoking a shell to do it. In such a scenario,
1269 if the shell init file has commands in it, the shell will fork and
1270 exec for each of those commands, and we will see each such fork
1273 Such targets will supply an appropriate definition for this function. */
1275 #define target_post_startup_inferior(ptid) \
1276 (*current_target.to_post_startup_inferior) (ptid)
1278 /* On some targets, we can catch an inferior fork or vfork event when
1279 it occurs. These functions insert/remove an already-created
1280 catchpoint for such events. They return 0 for success, 1 if the
1281 catchpoint type is not supported and -1 for failure. */
1283 #define target_insert_fork_catchpoint(pid) \
1284 (*current_target.to_insert_fork_catchpoint) (pid)
1286 #define target_remove_fork_catchpoint(pid) \
1287 (*current_target.to_remove_fork_catchpoint) (pid)
1289 #define target_insert_vfork_catchpoint(pid) \
1290 (*current_target.to_insert_vfork_catchpoint) (pid)
1292 #define target_remove_vfork_catchpoint(pid) \
1293 (*current_target.to_remove_vfork_catchpoint) (pid)
1295 /* If the inferior forks or vforks, this function will be called at
1296 the next resume in order to perform any bookkeeping and fiddling
1297 necessary to continue debugging either the parent or child, as
1298 requested, and releasing the other. Information about the fork
1299 or vfork event is available via get_last_target_status ().
1300 This function returns 1 if the inferior should not be resumed
1301 (i.e. there is another event pending). */
1303 int target_follow_fork (int follow_child
, int detach_fork
);
1305 /* On some targets, we can catch an inferior exec event when it
1306 occurs. These functions insert/remove an already-created
1307 catchpoint for such events. They return 0 for success, 1 if the
1308 catchpoint type is not supported and -1 for failure. */
1310 #define target_insert_exec_catchpoint(pid) \
1311 (*current_target.to_insert_exec_catchpoint) (pid)
1313 #define target_remove_exec_catchpoint(pid) \
1314 (*current_target.to_remove_exec_catchpoint) (pid)
1318 NEEDED is nonzero if any syscall catch (of any kind) is requested.
1319 If NEEDED is zero, it means the target can disable the mechanism to
1320 catch system calls because there are no more catchpoints of this type.
1322 ANY_COUNT is nonzero if a generic (filter-less) syscall catch is
1323 being requested. In this case, both TABLE_SIZE and TABLE should
1326 TABLE_SIZE is the number of elements in TABLE. It only matters if
1329 TABLE is an array of ints, indexed by syscall number. An element in
1330 this array is nonzero if that syscall should be caught. This argument
1331 only matters if ANY_COUNT is zero.
1333 Return 0 for success, 1 if syscall catchpoints are not supported or -1
1336 #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \
1337 (*current_target.to_set_syscall_catchpoint) (pid, needed, any_count, \
1340 /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
1341 exit code of PID, if any. */
1343 #define target_has_exited(pid,wait_status,exit_status) \
1344 (*current_target.to_has_exited) (pid,wait_status,exit_status)
1346 /* The debugger has completed a blocking wait() call. There is now
1347 some process event that must be processed. This function should
1348 be defined by those targets that require the debugger to perform
1349 cleanup or internal state changes in response to the process event. */
1351 /* The inferior process has died. Do what is right. */
1353 void target_mourn_inferior (void);
1355 /* Does target have enough data to do a run or attach command? */
1357 #define target_can_run(t) \
1358 ((t)->to_can_run) ()
1360 /* Set list of signals to be handled in the target.
1362 PASS_SIGNALS is an array of size NSIG, indexed by target signal number
1363 (enum gdb_signal). For every signal whose entry in this array is
1364 non-zero, the target is allowed -but not required- to skip reporting
1365 arrival of the signal to the GDB core by returning from target_wait,
1366 and to pass the signal directly to the inferior instead.
1368 However, if the target is hardware single-stepping a thread that is
1369 about to receive a signal, it needs to be reported in any case, even
1370 if mentioned in a previous target_pass_signals call. */
1372 extern void target_pass_signals (int nsig
, unsigned char *pass_signals
);
1374 /* Set list of signals the target may pass to the inferior. This
1375 directly maps to the "handle SIGNAL pass/nopass" setting.
1377 PROGRAM_SIGNALS is an array of size NSIG, indexed by target signal
1378 number (enum gdb_signal). For every signal whose entry in this
1379 array is non-zero, the target is allowed to pass the signal to the
1380 inferior. Signals not present in the array shall be silently
1381 discarded. This does not influence whether to pass signals to the
1382 inferior as a result of a target_resume call. This is useful in
1383 scenarios where the target needs to decide whether to pass or not a
1384 signal to the inferior without GDB core involvement, such as for
1385 example, when detaching (as threads may have been suspended with
1386 pending signals not reported to GDB). */
1388 extern void target_program_signals (int nsig
, unsigned char *program_signals
);
1390 /* Check to see if a thread is still alive. */
1392 extern int target_thread_alive (ptid_t ptid
);
1394 /* Query for new threads and add them to the thread list. */
1396 extern void target_find_new_threads (void);
1398 /* Make target stop in a continuable fashion. (For instance, under
1399 Unix, this should act like SIGSTOP). This function is normally
1400 used by GUIs to implement a stop button. */
1402 extern void target_stop (ptid_t ptid
);
1404 /* Send the specified COMMAND to the target's monitor
1405 (shell,interpreter) for execution. The result of the query is
1406 placed in OUTBUF. */
1408 #define target_rcmd(command, outbuf) \
1409 (*current_target.to_rcmd) (command, outbuf)
1412 /* Does the target include all of memory, or only part of it? This
1413 determines whether we look up the target chain for other parts of
1414 memory if this target can't satisfy a request. */
1416 extern int target_has_all_memory_1 (void);
1417 #define target_has_all_memory target_has_all_memory_1 ()
1419 /* Does the target include memory? (Dummy targets don't.) */
1421 extern int target_has_memory_1 (void);
1422 #define target_has_memory target_has_memory_1 ()
1424 /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until
1425 we start a process.) */
1427 extern int target_has_stack_1 (void);
1428 #define target_has_stack target_has_stack_1 ()
1430 /* Does the target have registers? (Exec files don't.) */
1432 extern int target_has_registers_1 (void);
1433 #define target_has_registers target_has_registers_1 ()
1435 /* Does the target have execution? Can we make it jump (through
1436 hoops), or pop its stack a few times? This means that the current
1437 target is currently executing; for some targets, that's the same as
1438 whether or not the target is capable of execution, but there are
1439 also targets which can be current while not executing. In that
1440 case this will become true after target_create_inferior or
1443 extern int target_has_execution_1 (ptid_t
);
1445 /* Like target_has_execution_1, but always passes inferior_ptid. */
1447 extern int target_has_execution_current (void);
1449 #define target_has_execution target_has_execution_current ()
1451 /* Default implementations for process_stratum targets. Return true
1452 if there's a selected inferior, false otherwise. */
1454 extern int default_child_has_all_memory (struct target_ops
*ops
);
1455 extern int default_child_has_memory (struct target_ops
*ops
);
1456 extern int default_child_has_stack (struct target_ops
*ops
);
1457 extern int default_child_has_registers (struct target_ops
*ops
);
1458 extern int default_child_has_execution (struct target_ops
*ops
,
1461 /* Can the target support the debugger control of thread execution?
1462 Can it lock the thread scheduler? */
1464 #define target_can_lock_scheduler \
1465 (current_target.to_has_thread_control & tc_schedlock)
1467 /* Should the target enable async mode if it is supported? Temporary
1468 cludge until async mode is a strict superset of sync mode. */
1469 extern int target_async_permitted
;
1471 /* Can the target support asynchronous execution? */
1472 #define target_can_async_p() (current_target.to_can_async_p ())
1474 /* Is the target in asynchronous execution mode? */
1475 #define target_is_async_p() (current_target.to_is_async_p ())
1477 int target_supports_non_stop (void);
1479 /* Put the target in async mode with the specified callback function. */
1480 #define target_async(CALLBACK,CONTEXT) \
1481 (current_target.to_async ((CALLBACK), (CONTEXT)))
1483 #define target_execution_direction() \
1484 (current_target.to_execution_direction ())
1486 /* Converts a process id to a string. Usually, the string just contains
1487 `process xyz', but on some systems it may contain
1488 `process xyz thread abc'. */
1490 extern char *target_pid_to_str (ptid_t ptid
);
1492 extern char *normal_pid_to_str (ptid_t ptid
);
1494 /* Return a short string describing extra information about PID,
1495 e.g. "sleeping", "runnable", "running on LWP 3". Null return value
1498 #define target_extra_thread_info(TP) \
1499 (current_target.to_extra_thread_info (TP))
1501 /* Return the thread's name. A NULL result means that the target
1502 could not determine this thread's name. */
1504 extern char *target_thread_name (struct thread_info
*);
1506 /* Attempts to find the pathname of the executable file
1507 that was run to create a specified process.
1509 The process PID must be stopped when this operation is used.
1511 If the executable file cannot be determined, NULL is returned.
1513 Else, a pointer to a character string containing the pathname
1514 is returned. This string should be copied into a buffer by
1515 the client if the string will not be immediately used, or if
1518 #define target_pid_to_exec_file(pid) \
1519 (current_target.to_pid_to_exec_file) (pid)
1521 /* See the to_thread_architecture description in struct target_ops. */
1523 #define target_thread_architecture(ptid) \
1524 (current_target.to_thread_architecture (¤t_target, ptid))
1527 * Iterator function for target memory regions.
1528 * Calls a callback function once for each memory region 'mapped'
1529 * in the child process. Defined as a simple macro rather than
1530 * as a function macro so that it can be tested for nullity.
1533 #define target_find_memory_regions(FUNC, DATA) \
1534 (current_target.to_find_memory_regions) (FUNC, DATA)
1537 * Compose corefile .note section.
1540 #define target_make_corefile_notes(BFD, SIZE_P) \
1541 (current_target.to_make_corefile_notes) (BFD, SIZE_P)
1543 /* Bookmark interfaces. */
1544 #define target_get_bookmark(ARGS, FROM_TTY) \
1545 (current_target.to_get_bookmark) (ARGS, FROM_TTY)
1547 #define target_goto_bookmark(ARG, FROM_TTY) \
1548 (current_target.to_goto_bookmark) (ARG, FROM_TTY)
1550 /* Hardware watchpoint interfaces. */
1552 /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or
1553 write). Only the INFERIOR_PTID task is being queried. */
1555 #define target_stopped_by_watchpoint \
1556 (*current_target.to_stopped_by_watchpoint)
1558 /* Non-zero if we have steppable watchpoints */
1560 #define target_have_steppable_watchpoint \
1561 (current_target.to_have_steppable_watchpoint)
1563 /* Non-zero if we have continuable watchpoints */
1565 #define target_have_continuable_watchpoint \
1566 (current_target.to_have_continuable_watchpoint)
1568 /* Provide defaults for hardware watchpoint functions. */
1570 /* If the *_hw_beakpoint functions have not been defined
1571 elsewhere use the definitions in the target vector. */
1573 /* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is
1574 one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or
1575 bp_hardware_breakpoint. CNT is the number of such watchpoints used so far
1576 (including this one?). OTHERTYPE is who knows what... */
1578 #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \
1579 (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE);
1581 /* Returns the number of debug registers needed to watch the given
1582 memory region, or zero if not supported. */
1584 #define target_region_ok_for_hw_watchpoint(addr, len) \
1585 (*current_target.to_region_ok_for_hw_watchpoint) (addr, len)
1588 /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes.
1589 TYPE is 0 for write, 1 for read, and 2 for read/write accesses.
1590 COND is the expression for its condition, or NULL if there's none.
1591 Returns 0 for success, 1 if the watchpoint type is not supported,
1594 #define target_insert_watchpoint(addr, len, type, cond) \
1595 (*current_target.to_insert_watchpoint) (addr, len, type, cond)
1597 #define target_remove_watchpoint(addr, len, type, cond) \
1598 (*current_target.to_remove_watchpoint) (addr, len, type, cond)
1600 /* Insert a new masked watchpoint at ADDR using the mask MASK.
1601 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1602 or hw_access for an access watchpoint. Returns 0 for success, 1 if
1603 masked watchpoints are not supported, -1 for failure. */
1605 extern int target_insert_mask_watchpoint (CORE_ADDR
, CORE_ADDR
, int);
1607 /* Remove a masked watchpoint at ADDR with the mask MASK.
1608 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1609 or hw_access for an access watchpoint. Returns 0 for success, non-zero
1612 extern int target_remove_mask_watchpoint (CORE_ADDR
, CORE_ADDR
, int);
1614 /* Insert a hardware breakpoint at address BP_TGT->placed_address in
1615 the target machine. Returns 0 for success, and returns non-zero or
1616 throws an error (with a detailed failure reason error code and
1617 message) otherwise. */
1619 #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
1620 (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt)
1622 #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
1623 (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt)
1625 /* Return number of debug registers needed for a ranged breakpoint,
1626 or -1 if ranged breakpoints are not supported. */
1628 extern int target_ranged_break_num_registers (void);
1630 /* Return non-zero if target knows the data address which triggered this
1631 target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the
1632 INFERIOR_PTID task is being queried. */
1633 #define target_stopped_data_address(target, addr_p) \
1634 (*target.to_stopped_data_address) (target, addr_p)
1636 /* Return non-zero if ADDR is within the range of a watchpoint spanning
1637 LENGTH bytes beginning at START. */
1638 #define target_watchpoint_addr_within_range(target, addr, start, length) \
1639 (*target.to_watchpoint_addr_within_range) (target, addr, start, length)
1641 /* Return non-zero if the target is capable of using hardware to evaluate
1642 the condition expression. In this case, if the condition is false when
1643 the watched memory location changes, execution may continue without the
1644 debugger being notified.
1646 Due to limitations in the hardware implementation, it may be capable of
1647 avoiding triggering the watchpoint in some cases where the condition
1648 expression is false, but may report some false positives as well.
1649 For this reason, GDB will still evaluate the condition expression when
1650 the watchpoint triggers. */
1651 #define target_can_accel_watchpoint_condition(addr, len, type, cond) \
1652 (*current_target.to_can_accel_watchpoint_condition) (addr, len, type, cond)
1654 /* Return number of debug registers needed for a masked watchpoint,
1655 -1 if masked watchpoints are not supported or -2 if the given address
1656 and mask combination cannot be used. */
1658 extern int target_masked_watch_num_registers (CORE_ADDR addr
, CORE_ADDR mask
);
1660 /* Target can execute in reverse? */
1661 #define target_can_execute_reverse \
1662 (current_target.to_can_execute_reverse ? \
1663 current_target.to_can_execute_reverse () : 0)
1665 extern const struct target_desc
*target_read_description (struct target_ops
*);
1667 #define target_get_ada_task_ptid(lwp, tid) \
1668 (*current_target.to_get_ada_task_ptid) (lwp,tid)
1670 /* Utility implementation of searching memory. */
1671 extern int simple_search_memory (struct target_ops
* ops
,
1672 CORE_ADDR start_addr
,
1673 ULONGEST search_space_len
,
1674 const gdb_byte
*pattern
,
1675 ULONGEST pattern_len
,
1676 CORE_ADDR
*found_addrp
);
1678 /* Main entry point for searching memory. */
1679 extern int target_search_memory (CORE_ADDR start_addr
,
1680 ULONGEST search_space_len
,
1681 const gdb_byte
*pattern
,
1682 ULONGEST pattern_len
,
1683 CORE_ADDR
*found_addrp
);
1685 /* Target file operations. */
1687 /* Open FILENAME on the target, using FLAGS and MODE. Return a
1688 target file descriptor, or -1 if an error occurs (and set
1690 extern int target_fileio_open (const char *filename
, int flags
, int mode
,
1693 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
1694 Return the number of bytes written, or -1 if an error occurs
1695 (and set *TARGET_ERRNO). */
1696 extern int target_fileio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
1697 ULONGEST offset
, int *target_errno
);
1699 /* Read up to LEN bytes FD on the target into READ_BUF.
1700 Return the number of bytes read, or -1 if an error occurs
1701 (and set *TARGET_ERRNO). */
1702 extern int target_fileio_pread (int fd
, gdb_byte
*read_buf
, int len
,
1703 ULONGEST offset
, int *target_errno
);
1705 /* Close FD on the target. Return 0, or -1 if an error occurs
1706 (and set *TARGET_ERRNO). */
1707 extern int target_fileio_close (int fd
, int *target_errno
);
1709 /* Unlink FILENAME on the target. Return 0, or -1 if an error
1710 occurs (and set *TARGET_ERRNO). */
1711 extern int target_fileio_unlink (const char *filename
, int *target_errno
);
1713 /* Read value of symbolic link FILENAME on the target. Return a
1714 null-terminated string allocated via xmalloc, or NULL if an error
1715 occurs (and set *TARGET_ERRNO). */
1716 extern char *target_fileio_readlink (const char *filename
, int *target_errno
);
1718 /* Read target file FILENAME. The return value will be -1 if the transfer
1719 fails or is not supported; 0 if the object is empty; or the length
1720 of the object otherwise. If a positive value is returned, a
1721 sufficiently large buffer will be allocated using xmalloc and
1722 returned in *BUF_P containing the contents of the object.
1724 This method should be used for objects sufficiently small to store
1725 in a single xmalloc'd buffer, when no fixed bound on the object's
1726 size is known in advance. */
1727 extern LONGEST
target_fileio_read_alloc (const char *filename
,
1730 /* Read target file FILENAME. The result is NUL-terminated and
1731 returned as a string, allocated using xmalloc. If an error occurs
1732 or the transfer is unsupported, NULL is returned. Empty objects
1733 are returned as allocated but empty strings. A warning is issued
1734 if the result contains any embedded NUL bytes. */
1735 extern char *target_fileio_read_stralloc (const char *filename
);
1738 /* Tracepoint-related operations. */
1740 #define target_trace_init() \
1741 (*current_target.to_trace_init) ()
1743 #define target_download_tracepoint(t) \
1744 (*current_target.to_download_tracepoint) (t)
1746 #define target_can_download_tracepoint() \
1747 (*current_target.to_can_download_tracepoint) ()
1749 #define target_download_trace_state_variable(tsv) \
1750 (*current_target.to_download_trace_state_variable) (tsv)
1752 #define target_enable_tracepoint(loc) \
1753 (*current_target.to_enable_tracepoint) (loc)
1755 #define target_disable_tracepoint(loc) \
1756 (*current_target.to_disable_tracepoint) (loc)
1758 #define target_trace_start() \
1759 (*current_target.to_trace_start) ()
1761 #define target_trace_set_readonly_regions() \
1762 (*current_target.to_trace_set_readonly_regions) ()
1764 #define target_get_trace_status(ts) \
1765 (*current_target.to_get_trace_status) (ts)
1767 #define target_get_tracepoint_status(tp,utp) \
1768 (*current_target.to_get_tracepoint_status) (tp, utp)
1770 #define target_trace_stop() \
1771 (*current_target.to_trace_stop) ()
1773 #define target_trace_find(type,num,addr1,addr2,tpp) \
1774 (*current_target.to_trace_find) ((type), (num), (addr1), (addr2), (tpp))
1776 #define target_get_trace_state_variable_value(tsv,val) \
1777 (*current_target.to_get_trace_state_variable_value) ((tsv), (val))
1779 #define target_save_trace_data(filename) \
1780 (*current_target.to_save_trace_data) (filename)
1782 #define target_upload_tracepoints(utpp) \
1783 (*current_target.to_upload_tracepoints) (utpp)
1785 #define target_upload_trace_state_variables(utsvp) \
1786 (*current_target.to_upload_trace_state_variables) (utsvp)
1788 #define target_get_raw_trace_data(buf,offset,len) \
1789 (*current_target.to_get_raw_trace_data) ((buf), (offset), (len))
1791 #define target_get_min_fast_tracepoint_insn_len() \
1792 (*current_target.to_get_min_fast_tracepoint_insn_len) ()
1794 #define target_set_disconnected_tracing(val) \
1795 (*current_target.to_set_disconnected_tracing) (val)
1797 #define target_set_circular_trace_buffer(val) \
1798 (*current_target.to_set_circular_trace_buffer) (val)
1800 #define target_set_trace_buffer_size(val) \
1801 (*current_target.to_set_trace_buffer_size) (val)
1803 #define target_set_trace_notes(user,notes,stopnotes) \
1804 (*current_target.to_set_trace_notes) ((user), (notes), (stopnotes))
1806 #define target_get_tib_address(ptid, addr) \
1807 (*current_target.to_get_tib_address) ((ptid), (addr))
1809 #define target_set_permissions() \
1810 (*current_target.to_set_permissions) ()
1812 #define target_static_tracepoint_marker_at(addr, marker) \
1813 (*current_target.to_static_tracepoint_marker_at) (addr, marker)
1815 #define target_static_tracepoint_markers_by_strid(marker_id) \
1816 (*current_target.to_static_tracepoint_markers_by_strid) (marker_id)
1818 #define target_traceframe_info() \
1819 (*current_target.to_traceframe_info) ()
1821 #define target_use_agent(use) \
1822 (*current_target.to_use_agent) (use)
1824 #define target_can_use_agent() \
1825 (*current_target.to_can_use_agent) ()
1827 #define target_augmented_libraries_svr4_read() \
1828 (*current_target.to_augmented_libraries_svr4_read) ()
1830 /* Command logging facility. */
1832 #define target_log_command(p) \
1834 if (current_target.to_log_command) \
1835 (*current_target.to_log_command) (p); \
1839 extern int target_core_of_thread (ptid_t ptid
);
1841 /* See to_get_unwinder in struct target_ops. */
1842 extern const struct frame_unwind
*target_get_unwinder (void);
1844 /* See to_get_tailcall_unwinder in struct target_ops. */
1845 extern const struct frame_unwind
*target_get_tailcall_unwinder (void);
1847 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches
1848 the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0
1849 if there's a mismatch, and -1 if an error is encountered while
1850 reading memory. Throws an error if the functionality is found not
1851 to be supported by the current target. */
1852 int target_verify_memory (const gdb_byte
*data
,
1853 CORE_ADDR memaddr
, ULONGEST size
);
1855 /* Routines for maintenance of the target structures...
1857 complete_target_initialization: Finalize a target_ops by filling in
1858 any fields needed by the target implementation.
1860 add_target: Add a target to the list of all possible targets.
1862 push_target: Make this target the top of the stack of currently used
1863 targets, within its particular stratum of the stack. Result
1864 is 0 if now atop the stack, nonzero if not on top (maybe
1867 unpush_target: Remove this from the stack of currently used targets,
1868 no matter where it is on the list. Returns 0 if no
1869 change, 1 if removed from stack. */
1871 extern void add_target (struct target_ops
*);
1873 extern void add_target_with_completer (struct target_ops
*t
,
1874 completer_ftype
*completer
);
1876 extern void complete_target_initialization (struct target_ops
*t
);
1878 /* Adds a command ALIAS for target T and marks it deprecated. This is useful
1879 for maintaining backwards compatibility when renaming targets. */
1881 extern void add_deprecated_target_alias (struct target_ops
*t
, char *alias
);
1883 extern void push_target (struct target_ops
*);
1885 extern int unpush_target (struct target_ops
*);
1887 extern void target_pre_inferior (int);
1889 extern void target_preopen (int);
1891 /* Does whatever cleanup is required to get rid of all pushed targets. */
1892 extern void pop_all_targets (void);
1894 /* Like pop_all_targets, but pops only targets whose stratum is
1895 strictly above ABOVE_STRATUM. */
1896 extern void pop_all_targets_above (enum strata above_stratum
);
1898 extern int target_is_pushed (struct target_ops
*t
);
1900 extern CORE_ADDR
target_translate_tls_address (struct objfile
*objfile
,
1903 /* Struct target_section maps address ranges to file sections. It is
1904 mostly used with BFD files, but can be used without (e.g. for handling
1905 raw disks, or files not in formats handled by BFD). */
1907 struct target_section
1909 CORE_ADDR addr
; /* Lowest address in section */
1910 CORE_ADDR endaddr
; /* 1+highest address in section */
1912 struct bfd_section
*the_bfd_section
;
1914 /* The "owner" of the section.
1915 It can be any unique value. It is set by add_target_sections
1916 and used by remove_target_sections.
1917 For example, for executables it is a pointer to exec_bfd and
1918 for shlibs it is the so_list pointer. */
1922 /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */
1924 struct target_section_table
1926 struct target_section
*sections
;
1927 struct target_section
*sections_end
;
1930 /* Return the "section" containing the specified address. */
1931 struct target_section
*target_section_by_addr (struct target_ops
*target
,
1934 /* Return the target section table this target (or the targets
1935 beneath) currently manipulate. */
1937 extern struct target_section_table
*target_get_section_table
1938 (struct target_ops
*target
);
1940 /* From mem-break.c */
1942 extern int memory_remove_breakpoint (struct target_ops
*, struct gdbarch
*,
1943 struct bp_target_info
*);
1945 extern int memory_insert_breakpoint (struct target_ops
*, struct gdbarch
*,
1946 struct bp_target_info
*);
1948 extern int default_memory_remove_breakpoint (struct gdbarch
*,
1949 struct bp_target_info
*);
1951 extern int default_memory_insert_breakpoint (struct gdbarch
*,
1952 struct bp_target_info
*);
1957 extern void initialize_targets (void);
1959 extern void noprocess (void) ATTRIBUTE_NORETURN
;
1961 extern void target_require_runnable (void);
1963 extern void find_default_attach (struct target_ops
*, char *, int);
1965 extern void find_default_create_inferior (struct target_ops
*,
1966 char *, char *, char **, int);
1968 extern struct target_ops
*find_target_beneath (struct target_ops
*);
1970 /* Read OS data object of type TYPE from the target, and return it in
1971 XML format. The result is NUL-terminated and returned as a string,
1972 allocated using xmalloc. If an error occurs or the transfer is
1973 unsupported, NULL is returned. Empty objects are returned as
1974 allocated but empty strings. */
1976 extern char *target_get_osdata (const char *type
);
1979 /* Stuff that should be shared among the various remote targets. */
1981 /* Debugging level. 0 is off, and non-zero values mean to print some debug
1982 information (higher values, more information). */
1983 extern int remote_debug
;
1985 /* Speed in bits per second, or -1 which means don't mess with the speed. */
1986 extern int baud_rate
;
1987 /* Timeout limit for response from target. */
1988 extern int remote_timeout
;
1992 /* Set the show memory breakpoints mode to show, and installs a cleanup
1993 to restore it back to the current value. */
1994 extern struct cleanup
*make_show_memory_breakpoints_cleanup (int show
);
1996 extern int may_write_registers
;
1997 extern int may_write_memory
;
1998 extern int may_insert_breakpoints
;
1999 extern int may_insert_tracepoints
;
2000 extern int may_insert_fast_tracepoints
;
2001 extern int may_stop
;
2003 extern void update_target_permissions (void);
2006 /* Imported from machine dependent code. */
2008 /* Blank target vector entries are initialized to target_ignore. */
2009 void target_ignore (void);
2011 /* See to_supports_btrace in struct target_ops. */
2012 extern int target_supports_btrace (void);
2014 /* See to_enable_btrace in struct target_ops. */
2015 extern struct btrace_target_info
*target_enable_btrace (ptid_t ptid
);
2017 /* See to_disable_btrace in struct target_ops. */
2018 extern void target_disable_btrace (struct btrace_target_info
*btinfo
);
2020 /* See to_teardown_btrace in struct target_ops. */
2021 extern void target_teardown_btrace (struct btrace_target_info
*btinfo
);
2023 /* See to_read_btrace in struct target_ops. */
2024 extern enum btrace_error
target_read_btrace (VEC (btrace_block_s
) **,
2025 struct btrace_target_info
*,
2026 enum btrace_read_type
);
2028 /* See to_stop_recording in struct target_ops. */
2029 extern void target_stop_recording (void);
2031 /* See to_info_record in struct target_ops. */
2032 extern void target_info_record (void);
2034 /* See to_save_record in struct target_ops. */
2035 extern void target_save_record (const char *filename
);
2037 /* Query if the target supports deleting the execution log. */
2038 extern int target_supports_delete_record (void);
2040 /* See to_delete_record in struct target_ops. */
2041 extern void target_delete_record (void);
2043 /* See to_record_is_replaying in struct target_ops. */
2044 extern int target_record_is_replaying (void);
2046 /* See to_goto_record_begin in struct target_ops. */
2047 extern void target_goto_record_begin (void);
2049 /* See to_goto_record_end in struct target_ops. */
2050 extern void target_goto_record_end (void);
2052 /* See to_goto_record in struct target_ops. */
2053 extern void target_goto_record (ULONGEST insn
);
2055 /* See to_insn_history. */
2056 extern void target_insn_history (int size
, int flags
);
2058 /* See to_insn_history_from. */
2059 extern void target_insn_history_from (ULONGEST from
, int size
, int flags
);
2061 /* See to_insn_history_range. */
2062 extern void target_insn_history_range (ULONGEST begin
, ULONGEST end
, int flags
);
2064 /* See to_call_history. */
2065 extern void target_call_history (int size
, int flags
);
2067 /* See to_call_history_from. */
2068 extern void target_call_history_from (ULONGEST begin
, int size
, int flags
);
2070 /* See to_call_history_range. */
2071 extern void target_call_history_range (ULONGEST begin
, ULONGEST end
, int flags
);
2073 /* See to_decr_pc_after_break. Start searching for the target at OPS. */
2074 extern CORE_ADDR
forward_target_decr_pc_after_break (struct target_ops
*ops
,
2075 struct gdbarch
*gdbarch
);
2077 /* See to_decr_pc_after_break. */
2078 extern CORE_ADDR
target_decr_pc_after_break (struct gdbarch
*gdbarch
);
2080 #endif /* !defined (TARGET_H) */