1 /* Interface between GDB and target environments, including files and processes
3 Copyright (C) 1990-2015 Free Software Foundation, Inc.
5 Contributed by Cygnus Support. Written by John Gilmore.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 #if !defined (TARGET_H)
30 struct bp_target_info;
32 struct target_section_table;
33 struct trace_state_variable;
37 struct static_tracepoint_marker;
38 struct traceframe_info;
43 #include "infrun.h" /* For enum exec_direction_kind. */
44 #include "breakpoint.h" /* For enum bptype. */
46 /* This include file defines the interface between the main part
47 of the debugger, and the part which is target-specific, or
48 specific to the communications interface between us and the
51 A TARGET is an interface between the debugger and a particular
52 kind of file or process. Targets can be STACKED in STRATA,
53 so that more than one target can potentially respond to a request.
54 In particular, memory accesses will walk down the stack of targets
55 until they find a target that is interested in handling that particular
56 address. STRATA are artificial boundaries on the stack, within
57 which particular kinds of targets live. Strata exist so that
58 people don't get confused by pushing e.g. a process target and then
59 a file target, and wondering why they can't see the current values
60 of variables any more (the file target is handling them and they
61 never get to the process target). So when you push a file target,
62 it goes into the file stratum, which is always below the process
65 #include "target/target.h"
66 #include "target/resume.h"
67 #include "target/wait.h"
68 #include "target/waitstatus.h"
73 #include "gdb_signals.h"
77 #include "break-common.h" /* For enum target_hw_bp_type. */
81 dummy_stratum, /* The lowest of the low */
82 file_stratum, /* Executable files, etc */
83 process_stratum, /* Executing processes or core dump files */
84 thread_stratum, /* Executing threads */
85 record_stratum, /* Support record debugging */
86 arch_stratum /* Architecture overrides */
89 enum thread_control_capabilities
91 tc_none = 0, /* Default: can't control thread execution. */
92 tc_schedlock = 1, /* Can lock the thread scheduler. */
95 /* The structure below stores information about a system call.
96 It is basically used in the "catch syscall" command, and in
97 every function that gives information about a system call.
99 It's also good to mention that its fields represent everything
100 that we currently know about a syscall in GDB. */
103 /* The syscall number. */
106 /* The syscall name. */
110 /* Return a pretty printed form of target_waitstatus.
111 Space for the result is malloc'd, caller must free. */
112 extern char *target_waitstatus_to_string (const struct target_waitstatus *);
114 /* Return a pretty printed form of TARGET_OPTIONS.
115 Space for the result is malloc'd, caller must free. */
116 extern char *target_options_to_string (int target_options);
118 /* Possible types of events that the inferior handler will have to
120 enum inferior_event_type
122 /* Process a normal inferior event which will result in target_wait
125 /* We are called because a timer went off. */
127 /* We are called to do stuff after the inferior stops. */
129 /* We are called to do some stuff after the inferior stops, but we
130 are expected to reenter the proceed() and
131 handle_inferior_event() functions. This is used only in case of
132 'step n' like commands. */
136 /* Target objects which can be transfered using target_read,
137 target_write, et cetera. */
141 /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */
143 /* SPU target specific transfer. See "spu-tdep.c". */
145 /* Transfer up-to LEN bytes of memory starting at OFFSET. */
146 TARGET_OBJECT_MEMORY,
147 /* Memory, avoiding GDB's data cache and trusting the executable.
148 Target implementations of to_xfer_partial never need to handle
149 this object, and most callers should not use it. */
150 TARGET_OBJECT_RAW_MEMORY,
151 /* Memory known to be part of the target's stack. This is cached even
152 if it is not in a region marked as such, since it is known to be
154 TARGET_OBJECT_STACK_MEMORY,
155 /* Memory known to be part of the target code. This is cached even
156 if it is not in a region marked as such. */
157 TARGET_OBJECT_CODE_MEMORY,
158 /* Kernel Unwind Table. See "ia64-tdep.c". */
159 TARGET_OBJECT_UNWIND_TABLE,
160 /* Transfer auxilliary vector. */
162 /* StackGhost cookie. See "sparc-tdep.c". */
163 TARGET_OBJECT_WCOOKIE,
164 /* Target memory map in XML format. */
165 TARGET_OBJECT_MEMORY_MAP,
166 /* Flash memory. This object can be used to write contents to
167 a previously erased flash memory. Using it without erasing
168 flash can have unexpected results. Addresses are physical
169 address on target, and not relative to flash start. */
171 /* Available target-specific features, e.g. registers and coprocessors.
172 See "target-descriptions.c". ANNEX should never be empty. */
173 TARGET_OBJECT_AVAILABLE_FEATURES,
174 /* Currently loaded libraries, in XML format. */
175 TARGET_OBJECT_LIBRARIES,
176 /* Currently loaded libraries specific for SVR4 systems, in XML format. */
177 TARGET_OBJECT_LIBRARIES_SVR4,
178 /* Currently loaded libraries specific to AIX systems, in XML format. */
179 TARGET_OBJECT_LIBRARIES_AIX,
180 /* Get OS specific data. The ANNEX specifies the type (running
181 processes, etc.). The data being transfered is expected to follow
182 the DTD specified in features/osdata.dtd. */
183 TARGET_OBJECT_OSDATA,
184 /* Extra signal info. Usually the contents of `siginfo_t' on unix
186 TARGET_OBJECT_SIGNAL_INFO,
187 /* The list of threads that are being debugged. */
188 TARGET_OBJECT_THREADS,
189 /* Collected static trace data. */
190 TARGET_OBJECT_STATIC_TRACE_DATA,
191 /* The HP-UX registers (those that can be obtained or modified by using
192 the TT_LWP_RUREGS/TT_LWP_WUREGS ttrace requests). */
193 TARGET_OBJECT_HPUX_UREGS,
194 /* The HP-UX shared library linkage pointer. ANNEX should be a string
195 image of the code address whose linkage pointer we are looking for.
197 The size of the data transfered is always 8 bytes (the size of an
199 TARGET_OBJECT_HPUX_SOLIB_GOT,
200 /* Traceframe info, in XML format. */
201 TARGET_OBJECT_TRACEFRAME_INFO,
202 /* Load maps for FDPIC systems. */
204 /* Darwin dynamic linker info data. */
205 TARGET_OBJECT_DARWIN_DYLD_INFO,
206 /* OpenVMS Unwind Information Block. */
207 TARGET_OBJECT_OPENVMS_UIB,
208 /* Branch trace data, in XML format. */
209 TARGET_OBJECT_BTRACE,
210 /* Branch trace configuration, in XML format. */
211 TARGET_OBJECT_BTRACE_CONF,
212 /* The pathname of the executable file that was run to create
213 a specified process. ANNEX should be a string representation
214 of the process ID of the process in question, in hexadecimal
216 TARGET_OBJECT_EXEC_FILE,
217 /* Possible future objects: TARGET_OBJECT_FILE, ... */
220 /* Possible values returned by target_xfer_partial, etc. */
222 enum target_xfer_status
224 /* Some bytes are transferred. */
227 /* No further transfer is possible. */
230 /* The piece of the object requested is unavailable. */
231 TARGET_XFER_UNAVAILABLE = 2,
233 /* Generic I/O error. Note that it's important that this is '-1',
234 as we still have target_xfer-related code returning hardcoded
236 TARGET_XFER_E_IO = -1,
238 /* Keep list in sync with target_xfer_status_to_string. */
241 /* Return the string form of STATUS. */
244 target_xfer_status_to_string (enum target_xfer_status status);
246 /* Enumeration of the kinds of traceframe searches that a target may
247 be able to perform. */
258 typedef struct static_tracepoint_marker *static_tracepoint_marker_p;
259 DEF_VEC_P(static_tracepoint_marker_p);
261 typedef enum target_xfer_status
262 target_xfer_partial_ftype (struct target_ops *ops,
263 enum target_object object,
266 const gdb_byte *writebuf,
269 ULONGEST *xfered_len);
271 enum target_xfer_status
272 raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf,
273 const gdb_byte *writebuf, ULONGEST memaddr,
274 LONGEST len, ULONGEST *xfered_len);
276 /* Request that OPS transfer up to LEN addressable units of the target's
277 OBJECT. When reading from a memory object, the size of an addressable unit
278 is architecture dependent and can be found using
279 gdbarch_addressable_memory_unit_size. Otherwise, an addressable unit is 1
280 byte long. BUF should point to a buffer large enough to hold the read data,
281 taking into account the addressable unit size. The OFFSET, for a seekable
282 object, specifies the starting point. The ANNEX can be used to provide
283 additional data-specific information to the target.
285 Return the number of addressable units actually transferred, or a negative
286 error code (an 'enum target_xfer_error' value) if the transfer is not
287 supported or otherwise fails. Return of a positive value less than
288 LEN indicates that no further transfer is possible. Unlike the raw
289 to_xfer_partial interface, callers of these functions do not need
290 to retry partial transfers. */
292 extern LONGEST target_read (struct target_ops *ops,
293 enum target_object object,
294 const char *annex, gdb_byte *buf,
295 ULONGEST offset, LONGEST len);
297 struct memory_read_result
299 /* First address that was read. */
301 /* Past-the-end address. */
306 typedef struct memory_read_result memory_read_result_s;
307 DEF_VEC_O(memory_read_result_s);
309 extern void free_memory_read_result_vector (void *);
311 extern VEC(memory_read_result_s)* read_memory_robust (struct target_ops *ops,
312 const ULONGEST offset,
315 /* Request that OPS transfer up to LEN addressable units from BUF to the
316 target's OBJECT. When writing to a memory object, the addressable unit
317 size is architecture dependent and can be found using
318 gdbarch_addressable_memory_unit_size. Otherwise, an addressable unit is 1
319 byte long. The OFFSET, for a seekable object, specifies the starting point.
320 The ANNEX can be used to provide additional data-specific information to
323 Return the number of addressable units actually transferred, or a negative
324 error code (an 'enum target_xfer_status' value) if the transfer is not
325 supported or otherwise fails. Return of a positive value less than
326 LEN indicates that no further transfer is possible. Unlike the raw
327 to_xfer_partial interface, callers of these functions do not need to
328 retry partial transfers. */
330 extern LONGEST target_write (struct target_ops *ops,
331 enum target_object object,
332 const char *annex, const gdb_byte *buf,
333 ULONGEST offset, LONGEST len);
335 /* Similar to target_write, except that it also calls PROGRESS with
336 the number of bytes written and the opaque BATON after every
337 successful partial write (and before the first write). This is
338 useful for progress reporting and user interaction while writing
339 data. To abort the transfer, the progress callback can throw an
342 LONGEST target_write_with_progress (struct target_ops *ops,
343 enum target_object object,
344 const char *annex, const gdb_byte *buf,
345 ULONGEST offset, LONGEST len,
346 void (*progress) (ULONGEST, void *),
349 /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will
350 be read using OPS. The return value will be -1 if the transfer
351 fails or is not supported; 0 if the object is empty; or the length
352 of the object otherwise. If a positive value is returned, a
353 sufficiently large buffer will be allocated using xmalloc and
354 returned in *BUF_P containing the contents of the object.
356 This method should be used for objects sufficiently small to store
357 in a single xmalloc'd buffer, when no fixed bound on the object's
358 size is known in advance. Don't try to read TARGET_OBJECT_MEMORY
359 through this function. */
361 extern LONGEST target_read_alloc (struct target_ops *ops,
362 enum target_object object,
363 const char *annex, gdb_byte **buf_p);
365 /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
366 returned as a string, allocated using xmalloc. If an error occurs
367 or the transfer is unsupported, NULL is returned. Empty objects
368 are returned as allocated but empty strings. A warning is issued
369 if the result contains any embedded NUL bytes. */
371 extern char *target_read_stralloc (struct target_ops *ops,
372 enum target_object object,
375 /* See target_ops->to_xfer_partial. */
376 extern target_xfer_partial_ftype target_xfer_partial;
378 /* Wrappers to target read/write that perform memory transfers. They
379 throw an error if the memory transfer fails.
381 NOTE: cagney/2003-10-23: The naming schema is lifted from
382 "frame.h". The parameter order is lifted from get_frame_memory,
383 which in turn lifted it from read_memory. */
385 extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr,
386 gdb_byte *buf, LONGEST len);
387 extern ULONGEST get_target_memory_unsigned (struct target_ops *ops,
388 CORE_ADDR addr, int len,
389 enum bfd_endian byte_order);
391 struct thread_info; /* fwd decl for parameter list below: */
393 /* The type of the callback to the to_async method. */
395 typedef void async_callback_ftype (enum inferior_event_type event_type,
398 /* Normally target debug printing is purely type-based. However,
399 sometimes it is necessary to override the debug printing on a
400 per-argument basis. This macro can be used, attribute-style, to
401 name the target debug printing function for a particular method
402 argument. FUNC is the name of the function. The macro's
403 definition is empty because it is only used by the
404 make-target-delegates script. */
406 #define TARGET_DEBUG_PRINTER(FUNC)
408 /* These defines are used to mark target_ops methods. The script
409 make-target-delegates scans these and auto-generates the base
410 method implementations. There are four macros that can be used:
412 1. TARGET_DEFAULT_IGNORE. There is no argument. The base method
413 does nothing. This is only valid if the method return type is
416 2. TARGET_DEFAULT_NORETURN. The argument is a function call, like
417 'tcomplain ()'. The base method simply makes this call, which is
418 assumed not to return.
420 3. TARGET_DEFAULT_RETURN. The argument is a C expression. The
421 base method returns this expression's value.
423 4. TARGET_DEFAULT_FUNC. The argument is the name of a function.
424 make-target-delegates does not generate a base method in this case,
425 but instead uses the argument function as the base method. */
427 #define TARGET_DEFAULT_IGNORE()
428 #define TARGET_DEFAULT_NORETURN(ARG)
429 #define TARGET_DEFAULT_RETURN(ARG)
430 #define TARGET_DEFAULT_FUNC(ARG)
434 struct target_ops *beneath; /* To the target under this one. */
435 const char *to_shortname; /* Name this target type */
436 const char *to_longname; /* Name for printing */
437 const char *to_doc; /* Documentation. Does not include trailing
438 newline, and starts with a one-line descrip-
439 tion (probably similar to to_longname). */
440 /* Per-target scratch pad. */
442 /* The open routine takes the rest of the parameters from the
443 command, and (if successful) pushes a new target onto the
444 stack. Targets should supply this routine, if only to provide
446 void (*to_open) (const char *, int);
447 /* Old targets with a static target vector provide "to_close".
448 New re-entrant targets provide "to_xclose" and that is expected
449 to xfree everything (including the "struct target_ops"). */
450 void (*to_xclose) (struct target_ops *targ);
451 void (*to_close) (struct target_ops *);
452 /* Attaches to a process on the target side. Arguments are as
453 passed to the `attach' command by the user. This routine can
454 be called when the target is not on the target-stack, if the
455 target_can_run routine returns 1; in that case, it must push
456 itself onto the stack. Upon exit, the target should be ready
457 for normal operations, and should be ready to deliver the
458 status of the process immediately (without waiting) to an
459 upcoming target_wait call. */
460 void (*to_attach) (struct target_ops *ops, const char *, int);
461 void (*to_post_attach) (struct target_ops *, int)
462 TARGET_DEFAULT_IGNORE ();
463 void (*to_detach) (struct target_ops *ops, const char *, int)
464 TARGET_DEFAULT_IGNORE ();
465 void (*to_disconnect) (struct target_ops *, const char *, int)
466 TARGET_DEFAULT_NORETURN (tcomplain ());
467 void (*to_resume) (struct target_ops *, ptid_t,
468 int TARGET_DEBUG_PRINTER (target_debug_print_step),
470 TARGET_DEFAULT_NORETURN (noprocess ());
471 ptid_t (*to_wait) (struct target_ops *,
472 ptid_t, struct target_waitstatus *,
473 int TARGET_DEBUG_PRINTER (target_debug_print_options))
474 TARGET_DEFAULT_NORETURN (noprocess ());
475 void (*to_fetch_registers) (struct target_ops *, struct regcache *, int)
476 TARGET_DEFAULT_IGNORE ();
477 void (*to_store_registers) (struct target_ops *, struct regcache *, int)
478 TARGET_DEFAULT_NORETURN (noprocess ());
479 void (*to_prepare_to_store) (struct target_ops *, struct regcache *)
480 TARGET_DEFAULT_NORETURN (noprocess ());
482 void (*to_files_info) (struct target_ops *)
483 TARGET_DEFAULT_IGNORE ();
484 int (*to_insert_breakpoint) (struct target_ops *, struct gdbarch *,
485 struct bp_target_info *)
486 TARGET_DEFAULT_FUNC (memory_insert_breakpoint);
487 int (*to_remove_breakpoint) (struct target_ops *, struct gdbarch *,
488 struct bp_target_info *)
489 TARGET_DEFAULT_FUNC (memory_remove_breakpoint);
491 /* Returns true if the target stopped because it executed a
492 software breakpoint. This is necessary for correct background
493 execution / non-stop mode operation, and for correct PC
494 adjustment on targets where the PC needs to be adjusted when a
495 software breakpoint triggers. In these modes, by the time GDB
496 processes a breakpoint event, the breakpoint may already be
497 done from the target, so GDB needs to be able to tell whether
498 it should ignore the event and whether it should adjust the PC.
499 See adjust_pc_after_break. */
500 int (*to_stopped_by_sw_breakpoint) (struct target_ops *)
501 TARGET_DEFAULT_RETURN (0);
502 /* Returns true if the above method is supported. */
503 int (*to_supports_stopped_by_sw_breakpoint) (struct target_ops *)
504 TARGET_DEFAULT_RETURN (0);
506 /* Returns true if the target stopped for a hardware breakpoint.
507 Likewise, if the target supports hardware breakpoints, this
508 method is necessary for correct background execution / non-stop
509 mode operation. Even though hardware breakpoints do not
510 require PC adjustment, GDB needs to be able to tell whether the
511 hardware breakpoint event is a delayed event for a breakpoint
512 that is already gone and should thus be ignored. */
513 int (*to_stopped_by_hw_breakpoint) (struct target_ops *)
514 TARGET_DEFAULT_RETURN (0);
515 /* Returns true if the above method is supported. */
516 int (*to_supports_stopped_by_hw_breakpoint) (struct target_ops *)
517 TARGET_DEFAULT_RETURN (0);
519 int (*to_can_use_hw_breakpoint) (struct target_ops *,
520 enum bptype, int, int)
521 TARGET_DEFAULT_RETURN (0);
522 int (*to_ranged_break_num_registers) (struct target_ops *)
523 TARGET_DEFAULT_RETURN (-1);
524 int (*to_insert_hw_breakpoint) (struct target_ops *,
525 struct gdbarch *, struct bp_target_info *)
526 TARGET_DEFAULT_RETURN (-1);
527 int (*to_remove_hw_breakpoint) (struct target_ops *,
528 struct gdbarch *, struct bp_target_info *)
529 TARGET_DEFAULT_RETURN (-1);
531 /* Documentation of what the two routines below are expected to do is
532 provided with the corresponding target_* macros. */
533 int (*to_remove_watchpoint) (struct target_ops *, CORE_ADDR, int,
534 enum target_hw_bp_type, struct expression *)
535 TARGET_DEFAULT_RETURN (-1);
536 int (*to_insert_watchpoint) (struct target_ops *, CORE_ADDR, int,
537 enum target_hw_bp_type, struct expression *)
538 TARGET_DEFAULT_RETURN (-1);
540 int (*to_insert_mask_watchpoint) (struct target_ops *,
541 CORE_ADDR, CORE_ADDR, int)
542 TARGET_DEFAULT_RETURN (1);
543 int (*to_remove_mask_watchpoint) (struct target_ops *,
544 CORE_ADDR, CORE_ADDR, int)
545 TARGET_DEFAULT_RETURN (1);
546 int (*to_stopped_by_watchpoint) (struct target_ops *)
547 TARGET_DEFAULT_RETURN (0);
548 int to_have_steppable_watchpoint;
549 int to_have_continuable_watchpoint;
550 int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *)
551 TARGET_DEFAULT_RETURN (0);
552 int (*to_watchpoint_addr_within_range) (struct target_ops *,
553 CORE_ADDR, CORE_ADDR, int)
554 TARGET_DEFAULT_FUNC (default_watchpoint_addr_within_range);
556 /* Documentation of this routine is provided with the corresponding
558 int (*to_region_ok_for_hw_watchpoint) (struct target_ops *,
560 TARGET_DEFAULT_FUNC (default_region_ok_for_hw_watchpoint);
562 int (*to_can_accel_watchpoint_condition) (struct target_ops *,
565 TARGET_DEFAULT_RETURN (0);
566 int (*to_masked_watch_num_registers) (struct target_ops *,
567 CORE_ADDR, CORE_ADDR)
568 TARGET_DEFAULT_RETURN (-1);
569 void (*to_terminal_init) (struct target_ops *)
570 TARGET_DEFAULT_IGNORE ();
571 void (*to_terminal_inferior) (struct target_ops *)
572 TARGET_DEFAULT_IGNORE ();
573 void (*to_terminal_ours_for_output) (struct target_ops *)
574 TARGET_DEFAULT_IGNORE ();
575 void (*to_terminal_ours) (struct target_ops *)
576 TARGET_DEFAULT_IGNORE ();
577 void (*to_terminal_info) (struct target_ops *, const char *, int)
578 TARGET_DEFAULT_FUNC (default_terminal_info);
579 void (*to_kill) (struct target_ops *)
580 TARGET_DEFAULT_NORETURN (noprocess ());
581 void (*to_load) (struct target_ops *, const char *, int)
582 TARGET_DEFAULT_NORETURN (tcomplain ());
583 /* Start an inferior process and set inferior_ptid to its pid.
584 EXEC_FILE is the file to run.
585 ALLARGS is a string containing the arguments to the program.
586 ENV is the environment vector to pass. Errors reported with error().
587 On VxWorks and various standalone systems, we ignore exec_file. */
588 void (*to_create_inferior) (struct target_ops *,
589 char *, char *, char **, int);
590 void (*to_post_startup_inferior) (struct target_ops *, ptid_t)
591 TARGET_DEFAULT_IGNORE ();
592 int (*to_insert_fork_catchpoint) (struct target_ops *, int)
593 TARGET_DEFAULT_RETURN (1);
594 int (*to_remove_fork_catchpoint) (struct target_ops *, int)
595 TARGET_DEFAULT_RETURN (1);
596 int (*to_insert_vfork_catchpoint) (struct target_ops *, int)
597 TARGET_DEFAULT_RETURN (1);
598 int (*to_remove_vfork_catchpoint) (struct target_ops *, int)
599 TARGET_DEFAULT_RETURN (1);
600 int (*to_follow_fork) (struct target_ops *, int, int)
601 TARGET_DEFAULT_FUNC (default_follow_fork);
602 int (*to_insert_exec_catchpoint) (struct target_ops *, int)
603 TARGET_DEFAULT_RETURN (1);
604 int (*to_remove_exec_catchpoint) (struct target_ops *, int)
605 TARGET_DEFAULT_RETURN (1);
606 int (*to_set_syscall_catchpoint) (struct target_ops *,
607 int, int, int, int, int *)
608 TARGET_DEFAULT_RETURN (1);
609 int (*to_has_exited) (struct target_ops *, int, int, int *)
610 TARGET_DEFAULT_RETURN (0);
611 void (*to_mourn_inferior) (struct target_ops *)
612 TARGET_DEFAULT_FUNC (default_mourn_inferior);
613 /* Note that to_can_run is special and can be invoked on an
614 unpushed target. Targets defining this method must also define
615 to_can_async_p and to_supports_non_stop. */
616 int (*to_can_run) (struct target_ops *)
617 TARGET_DEFAULT_RETURN (0);
619 /* Documentation of this routine is provided with the corresponding
621 void (*to_pass_signals) (struct target_ops *, int,
622 unsigned char * TARGET_DEBUG_PRINTER (target_debug_print_signals))
623 TARGET_DEFAULT_IGNORE ();
625 /* Documentation of this routine is provided with the
626 corresponding target_* function. */
627 void (*to_program_signals) (struct target_ops *, int,
628 unsigned char * TARGET_DEBUG_PRINTER (target_debug_print_signals))
629 TARGET_DEFAULT_IGNORE ();
631 int (*to_thread_alive) (struct target_ops *, ptid_t ptid)
632 TARGET_DEFAULT_RETURN (0);
633 void (*to_update_thread_list) (struct target_ops *)
634 TARGET_DEFAULT_IGNORE ();
635 char *(*to_pid_to_str) (struct target_ops *, ptid_t)
636 TARGET_DEFAULT_FUNC (default_pid_to_str);
637 char *(*to_extra_thread_info) (struct target_ops *, struct thread_info *)
638 TARGET_DEFAULT_RETURN (NULL);
639 char *(*to_thread_name) (struct target_ops *, struct thread_info *)
640 TARGET_DEFAULT_RETURN (NULL);
641 void (*to_stop) (struct target_ops *, ptid_t)
642 TARGET_DEFAULT_IGNORE ();
643 void (*to_interrupt) (struct target_ops *, ptid_t)
644 TARGET_DEFAULT_IGNORE ();
645 void (*to_check_pending_interrupt) (struct target_ops *)
646 TARGET_DEFAULT_IGNORE ();
647 void (*to_rcmd) (struct target_ops *,
648 const char *command, struct ui_file *output)
649 TARGET_DEFAULT_FUNC (default_rcmd);
650 char *(*to_pid_to_exec_file) (struct target_ops *, int pid)
651 TARGET_DEFAULT_RETURN (NULL);
652 void (*to_log_command) (struct target_ops *, const char *)
653 TARGET_DEFAULT_IGNORE ();
654 struct target_section_table *(*to_get_section_table) (struct target_ops *)
655 TARGET_DEFAULT_RETURN (NULL);
656 enum strata to_stratum;
657 int (*to_has_all_memory) (struct target_ops *);
658 int (*to_has_memory) (struct target_ops *);
659 int (*to_has_stack) (struct target_ops *);
660 int (*to_has_registers) (struct target_ops *);
661 int (*to_has_execution) (struct target_ops *, ptid_t);
662 int to_has_thread_control; /* control thread execution */
663 int to_attach_no_wait;
664 /* This method must be implemented in some situations. See the
665 comment on 'to_can_run'. */
666 int (*to_can_async_p) (struct target_ops *)
667 TARGET_DEFAULT_RETURN (0);
668 int (*to_is_async_p) (struct target_ops *)
669 TARGET_DEFAULT_RETURN (0);
670 void (*to_async) (struct target_ops *, int)
671 TARGET_DEFAULT_NORETURN (tcomplain ());
672 /* This method must be implemented in some situations. See the
673 comment on 'to_can_run'. */
674 int (*to_supports_non_stop) (struct target_ops *)
675 TARGET_DEFAULT_RETURN (0);
676 /* Return true if the target operates in non-stop mode even with
677 "set non-stop off". */
678 int (*to_always_non_stop_p) (struct target_ops *)
679 TARGET_DEFAULT_RETURN (0);
680 /* find_memory_regions support method for gcore */
681 int (*to_find_memory_regions) (struct target_ops *,
682 find_memory_region_ftype func, void *data)
683 TARGET_DEFAULT_FUNC (dummy_find_memory_regions);
684 /* make_corefile_notes support method for gcore */
685 char * (*to_make_corefile_notes) (struct target_ops *, bfd *, int *)
686 TARGET_DEFAULT_FUNC (dummy_make_corefile_notes);
687 /* get_bookmark support method for bookmarks */
688 gdb_byte * (*to_get_bookmark) (struct target_ops *, const char *, int)
689 TARGET_DEFAULT_NORETURN (tcomplain ());
690 /* goto_bookmark support method for bookmarks */
691 void (*to_goto_bookmark) (struct target_ops *, const gdb_byte *, int)
692 TARGET_DEFAULT_NORETURN (tcomplain ());
693 /* Return the thread-local address at OFFSET in the
694 thread-local storage for the thread PTID and the shared library
695 or executable file given by OBJFILE. If that block of
696 thread-local storage hasn't been allocated yet, this function
697 may return an error. LOAD_MODULE_ADDR may be zero for statically
698 linked multithreaded inferiors. */
699 CORE_ADDR (*to_get_thread_local_address) (struct target_ops *ops,
701 CORE_ADDR load_module_addr,
703 TARGET_DEFAULT_NORETURN (generic_tls_error ());
705 /* Request that OPS transfer up to LEN 8-bit bytes of the target's
706 OBJECT. The OFFSET, for a seekable object, specifies the
707 starting point. The ANNEX can be used to provide additional
708 data-specific information to the target.
710 Return the transferred status, error or OK (an
711 'enum target_xfer_status' value). Save the number of bytes
712 actually transferred in *XFERED_LEN if transfer is successful
713 (TARGET_XFER_OK) or the number unavailable bytes if the requested
714 data is unavailable (TARGET_XFER_UNAVAILABLE). *XFERED_LEN
715 smaller than LEN does not indicate the end of the object, only
716 the end of the transfer; higher level code should continue
717 transferring if desired. This is handled in target.c.
719 The interface does not support a "retry" mechanism. Instead it
720 assumes that at least one byte will be transfered on each
723 NOTE: cagney/2003-10-17: The current interface can lead to
724 fragmented transfers. Lower target levels should not implement
725 hacks, such as enlarging the transfer, in an attempt to
726 compensate for this. Instead, the target stack should be
727 extended so that it implements supply/collect methods and a
728 look-aside object cache. With that available, the lowest
729 target can safely and freely "push" data up the stack.
731 See target_read and target_write for more information. One,
732 and only one, of readbuf or writebuf must be non-NULL. */
734 enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
735 enum target_object object,
738 const gdb_byte *writebuf,
739 ULONGEST offset, ULONGEST len,
740 ULONGEST *xfered_len)
741 TARGET_DEFAULT_RETURN (TARGET_XFER_E_IO);
743 /* Returns the memory map for the target. A return value of NULL
744 means that no memory map is available. If a memory address
745 does not fall within any returned regions, it's assumed to be
746 RAM. The returned memory regions should not overlap.
748 The order of regions does not matter; target_memory_map will
749 sort regions by starting address. For that reason, this
750 function should not be called directly except via
753 This method should not cache data; if the memory map could
754 change unexpectedly, it should be invalidated, and higher
755 layers will re-fetch it. */
756 VEC(mem_region_s) *(*to_memory_map) (struct target_ops *)
757 TARGET_DEFAULT_RETURN (NULL);
759 /* Erases the region of flash memory starting at ADDRESS, of
762 Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned
763 on flash block boundaries, as reported by 'to_memory_map'. */
764 void (*to_flash_erase) (struct target_ops *,
765 ULONGEST address, LONGEST length)
766 TARGET_DEFAULT_NORETURN (tcomplain ());
768 /* Finishes a flash memory write sequence. After this operation
769 all flash memory should be available for writing and the result
770 of reading from areas written by 'to_flash_write' should be
771 equal to what was written. */
772 void (*to_flash_done) (struct target_ops *)
773 TARGET_DEFAULT_NORETURN (tcomplain ());
775 /* Describe the architecture-specific features of this target. If
776 OPS doesn't have a description, this should delegate to the
777 "beneath" target. Returns the description found, or NULL if no
778 description was available. */
779 const struct target_desc *(*to_read_description) (struct target_ops *ops)
780 TARGET_DEFAULT_RETURN (NULL);
782 /* Build the PTID of the thread on which a given task is running,
783 based on LWP and THREAD. These values are extracted from the
784 task Private_Data section of the Ada Task Control Block, and
785 their interpretation depends on the target. */
786 ptid_t (*to_get_ada_task_ptid) (struct target_ops *,
787 long lwp, long thread)
788 TARGET_DEFAULT_FUNC (default_get_ada_task_ptid);
790 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
791 Return 0 if *READPTR is already at the end of the buffer.
792 Return -1 if there is insufficient buffer for a whole entry.
793 Return 1 if an entry was read into *TYPEP and *VALP. */
794 int (*to_auxv_parse) (struct target_ops *ops, gdb_byte **readptr,
795 gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp)
796 TARGET_DEFAULT_FUNC (default_auxv_parse);
798 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
799 sequence of bytes in PATTERN with length PATTERN_LEN.
801 The result is 1 if found, 0 if not found, and -1 if there was an error
802 requiring halting of the search (e.g. memory read error).
803 If the pattern is found the address is recorded in FOUND_ADDRP. */
804 int (*to_search_memory) (struct target_ops *ops,
805 CORE_ADDR start_addr, ULONGEST search_space_len,
806 const gdb_byte *pattern, ULONGEST pattern_len,
807 CORE_ADDR *found_addrp)
808 TARGET_DEFAULT_FUNC (default_search_memory);
810 /* Can target execute in reverse? */
811 int (*to_can_execute_reverse) (struct target_ops *)
812 TARGET_DEFAULT_RETURN (0);
814 /* The direction the target is currently executing. Must be
815 implemented on targets that support reverse execution and async
816 mode. The default simply returns forward execution. */
817 enum exec_direction_kind (*to_execution_direction) (struct target_ops *)
818 TARGET_DEFAULT_FUNC (default_execution_direction);
820 /* Does this target support debugging multiple processes
822 int (*to_supports_multi_process) (struct target_ops *)
823 TARGET_DEFAULT_RETURN (0);
825 /* Does this target support enabling and disabling tracepoints while a trace
826 experiment is running? */
827 int (*to_supports_enable_disable_tracepoint) (struct target_ops *)
828 TARGET_DEFAULT_RETURN (0);
830 /* Does this target support disabling address space randomization? */
831 int (*to_supports_disable_randomization) (struct target_ops *);
833 /* Does this target support the tracenz bytecode for string collection? */
834 int (*to_supports_string_tracing) (struct target_ops *)
835 TARGET_DEFAULT_RETURN (0);
837 /* Does this target support evaluation of breakpoint conditions on its
839 int (*to_supports_evaluation_of_breakpoint_conditions) (struct target_ops *)
840 TARGET_DEFAULT_RETURN (0);
842 /* Does this target support evaluation of breakpoint commands on its
844 int (*to_can_run_breakpoint_commands) (struct target_ops *)
845 TARGET_DEFAULT_RETURN (0);
847 /* Determine current architecture of thread PTID.
849 The target is supposed to determine the architecture of the code where
850 the target is currently stopped at (on Cell, if a target is in spu_run,
851 to_thread_architecture would return SPU, otherwise PPC32 or PPC64).
852 This is architecture used to perform decr_pc_after_break adjustment,
853 and also determines the frame architecture of the innermost frame.
854 ptrace operations need to operate according to target_gdbarch ().
856 The default implementation always returns target_gdbarch (). */
857 struct gdbarch *(*to_thread_architecture) (struct target_ops *, ptid_t)
858 TARGET_DEFAULT_FUNC (default_thread_architecture);
860 /* Determine current address space of thread PTID.
862 The default implementation always returns the inferior's
864 struct address_space *(*to_thread_address_space) (struct target_ops *,
866 TARGET_DEFAULT_FUNC (default_thread_address_space);
868 /* Target file operations. */
870 /* Return nonzero if the filesystem seen by the current inferior
871 is the local filesystem, zero otherwise. */
872 int (*to_filesystem_is_local) (struct target_ops *)
873 TARGET_DEFAULT_RETURN (1);
875 /* Open FILENAME on the target, in the filesystem as seen by INF,
876 using FLAGS and MODE. If INF is NULL, use the filesystem seen
877 by the debugger (GDB or, for remote targets, the remote stub).
878 If WARN_IF_SLOW is nonzero, print a warning message if the file
879 is being accessed over a link that may be slow. Return a
880 target file descriptor, or -1 if an error occurs (and set
882 int (*to_fileio_open) (struct target_ops *,
883 struct inferior *inf, const char *filename,
884 int flags, int mode, int warn_if_slow,
887 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
888 Return the number of bytes written, or -1 if an error occurs
889 (and set *TARGET_ERRNO). */
890 int (*to_fileio_pwrite) (struct target_ops *,
891 int fd, const gdb_byte *write_buf, int len,
892 ULONGEST offset, int *target_errno);
894 /* Read up to LEN bytes FD on the target into READ_BUF.
895 Return the number of bytes read, or -1 if an error occurs
896 (and set *TARGET_ERRNO). */
897 int (*to_fileio_pread) (struct target_ops *,
898 int fd, gdb_byte *read_buf, int len,
899 ULONGEST offset, int *target_errno);
901 /* Get information about the file opened as FD and put it in
902 SB. Return 0 on success, or -1 if an error occurs (and set
904 int (*to_fileio_fstat) (struct target_ops *,
905 int fd, struct stat *sb, int *target_errno);
907 /* Close FD on the target. Return 0, or -1 if an error occurs
908 (and set *TARGET_ERRNO). */
909 int (*to_fileio_close) (struct target_ops *, int fd, int *target_errno);
911 /* Unlink FILENAME on the target, in the filesystem as seen by
912 INF. If INF is NULL, use the filesystem seen by the debugger
913 (GDB or, for remote targets, the remote stub). Return 0, or
914 -1 if an error occurs (and set *TARGET_ERRNO). */
915 int (*to_fileio_unlink) (struct target_ops *,
916 struct inferior *inf,
917 const char *filename,
920 /* Read value of symbolic link FILENAME on the target, in the
921 filesystem as seen by INF. If INF is NULL, use the filesystem
922 seen by the debugger (GDB or, for remote targets, the remote
923 stub). Return a null-terminated string allocated via xmalloc,
924 or NULL if an error occurs (and set *TARGET_ERRNO). */
925 char *(*to_fileio_readlink) (struct target_ops *,
926 struct inferior *inf,
927 const char *filename,
931 /* Implement the "info proc" command. */
932 void (*to_info_proc) (struct target_ops *, const char *,
933 enum info_proc_what);
935 /* Tracepoint-related operations. */
937 /* Prepare the target for a tracing run. */
938 void (*to_trace_init) (struct target_ops *)
939 TARGET_DEFAULT_NORETURN (tcomplain ());
941 /* Send full details of a tracepoint location to the target. */
942 void (*to_download_tracepoint) (struct target_ops *,
943 struct bp_location *location)
944 TARGET_DEFAULT_NORETURN (tcomplain ());
946 /* Is the target able to download tracepoint locations in current
948 int (*to_can_download_tracepoint) (struct target_ops *)
949 TARGET_DEFAULT_RETURN (0);
951 /* Send full details of a trace state variable to the target. */
952 void (*to_download_trace_state_variable) (struct target_ops *,
953 struct trace_state_variable *tsv)
954 TARGET_DEFAULT_NORETURN (tcomplain ());
956 /* Enable a tracepoint on the target. */
957 void (*to_enable_tracepoint) (struct target_ops *,
958 struct bp_location *location)
959 TARGET_DEFAULT_NORETURN (tcomplain ());
961 /* Disable a tracepoint on the target. */
962 void (*to_disable_tracepoint) (struct target_ops *,
963 struct bp_location *location)
964 TARGET_DEFAULT_NORETURN (tcomplain ());
966 /* Inform the target info of memory regions that are readonly
967 (such as text sections), and so it should return data from
968 those rather than look in the trace buffer. */
969 void (*to_trace_set_readonly_regions) (struct target_ops *)
970 TARGET_DEFAULT_NORETURN (tcomplain ());
972 /* Start a trace run. */
973 void (*to_trace_start) (struct target_ops *)
974 TARGET_DEFAULT_NORETURN (tcomplain ());
976 /* Get the current status of a tracing run. */
977 int (*to_get_trace_status) (struct target_ops *, struct trace_status *ts)
978 TARGET_DEFAULT_RETURN (-1);
980 void (*to_get_tracepoint_status) (struct target_ops *,
981 struct breakpoint *tp,
982 struct uploaded_tp *utp)
983 TARGET_DEFAULT_NORETURN (tcomplain ());
985 /* Stop a trace run. */
986 void (*to_trace_stop) (struct target_ops *)
987 TARGET_DEFAULT_NORETURN (tcomplain ());
989 /* Ask the target to find a trace frame of the given type TYPE,
990 using NUM, ADDR1, and ADDR2 as search parameters. Returns the
991 number of the trace frame, and also the tracepoint number at
992 TPP. If no trace frame matches, return -1. May throw if the
994 int (*to_trace_find) (struct target_ops *,
995 enum trace_find_type type, int num,
996 CORE_ADDR addr1, CORE_ADDR addr2, int *tpp)
997 TARGET_DEFAULT_RETURN (-1);
999 /* Get the value of the trace state variable number TSV, returning
1000 1 if the value is known and writing the value itself into the
1001 location pointed to by VAL, else returning 0. */
1002 int (*to_get_trace_state_variable_value) (struct target_ops *,
1003 int tsv, LONGEST *val)
1004 TARGET_DEFAULT_RETURN (0);
1006 int (*to_save_trace_data) (struct target_ops *, const char *filename)
1007 TARGET_DEFAULT_NORETURN (tcomplain ());
1009 int (*to_upload_tracepoints) (struct target_ops *,
1010 struct uploaded_tp **utpp)
1011 TARGET_DEFAULT_RETURN (0);
1013 int (*to_upload_trace_state_variables) (struct target_ops *,
1014 struct uploaded_tsv **utsvp)
1015 TARGET_DEFAULT_RETURN (0);
1017 LONGEST (*to_get_raw_trace_data) (struct target_ops *, gdb_byte *buf,
1018 ULONGEST offset, LONGEST len)
1019 TARGET_DEFAULT_NORETURN (tcomplain ());
1021 /* Get the minimum length of instruction on which a fast tracepoint
1022 may be set on the target. If this operation is unsupported,
1023 return -1. If for some reason the minimum length cannot be
1024 determined, return 0. */
1025 int (*to_get_min_fast_tracepoint_insn_len) (struct target_ops *)
1026 TARGET_DEFAULT_RETURN (-1);
1028 /* Set the target's tracing behavior in response to unexpected
1029 disconnection - set VAL to 1 to keep tracing, 0 to stop. */
1030 void (*to_set_disconnected_tracing) (struct target_ops *, int val)
1031 TARGET_DEFAULT_IGNORE ();
1032 void (*to_set_circular_trace_buffer) (struct target_ops *, int val)
1033 TARGET_DEFAULT_IGNORE ();
1034 /* Set the size of trace buffer in the target. */
1035 void (*to_set_trace_buffer_size) (struct target_ops *, LONGEST val)
1036 TARGET_DEFAULT_IGNORE ();
1038 /* Add/change textual notes about the trace run, returning 1 if
1039 successful, 0 otherwise. */
1040 int (*to_set_trace_notes) (struct target_ops *,
1041 const char *user, const char *notes,
1042 const char *stopnotes)
1043 TARGET_DEFAULT_RETURN (0);
1045 /* Return the processor core that thread PTID was last seen on.
1046 This information is updated only when:
1047 - update_thread_list is called
1049 If the core cannot be determined -- either for the specified
1050 thread, or right now, or in this debug session, or for this
1051 target -- return -1. */
1052 int (*to_core_of_thread) (struct target_ops *, ptid_t ptid)
1053 TARGET_DEFAULT_RETURN (-1);
1055 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range
1056 matches the contents of [DATA,DATA+SIZE). Returns 1 if there's
1057 a match, 0 if there's a mismatch, and -1 if an error is
1058 encountered while reading memory. */
1059 int (*to_verify_memory) (struct target_ops *, const gdb_byte *data,
1060 CORE_ADDR memaddr, ULONGEST size)
1061 TARGET_DEFAULT_FUNC (default_verify_memory);
1063 /* Return the address of the start of the Thread Information Block
1064 a Windows OS specific feature. */
1065 int (*to_get_tib_address) (struct target_ops *,
1066 ptid_t ptid, CORE_ADDR *addr)
1067 TARGET_DEFAULT_NORETURN (tcomplain ());
1069 /* Send the new settings of write permission variables. */
1070 void (*to_set_permissions) (struct target_ops *)
1071 TARGET_DEFAULT_IGNORE ();
1073 /* Look for a static tracepoint marker at ADDR, and fill in MARKER
1074 with its details. Return 1 on success, 0 on failure. */
1075 int (*to_static_tracepoint_marker_at) (struct target_ops *, CORE_ADDR,
1076 struct static_tracepoint_marker *marker)
1077 TARGET_DEFAULT_RETURN (0);
1079 /* Return a vector of all tracepoints markers string id ID, or all
1080 markers if ID is NULL. */
1081 VEC(static_tracepoint_marker_p) *(*to_static_tracepoint_markers_by_strid) (struct target_ops *, const char *id)
1082 TARGET_DEFAULT_NORETURN (tcomplain ());
1084 /* Return a traceframe info object describing the current
1085 traceframe's contents. This method should not cache data;
1086 higher layers take care of caching, invalidating, and
1087 re-fetching when necessary. */
1088 struct traceframe_info *(*to_traceframe_info) (struct target_ops *)
1089 TARGET_DEFAULT_NORETURN (tcomplain ());
1091 /* Ask the target to use or not to use agent according to USE. Return 1
1092 successful, 0 otherwise. */
1093 int (*to_use_agent) (struct target_ops *, int use)
1094 TARGET_DEFAULT_NORETURN (tcomplain ());
1096 /* Is the target able to use agent in current state? */
1097 int (*to_can_use_agent) (struct target_ops *)
1098 TARGET_DEFAULT_RETURN (0);
1100 /* Check whether the target supports branch tracing. */
1101 int (*to_supports_btrace) (struct target_ops *, enum btrace_format)
1102 TARGET_DEFAULT_RETURN (0);
1104 /* Enable branch tracing for PTID using CONF configuration.
1105 Return a branch trace target information struct for reading and for
1106 disabling branch trace. */
1107 struct btrace_target_info *(*to_enable_btrace) (struct target_ops *,
1109 const struct btrace_config *conf)
1110 TARGET_DEFAULT_NORETURN (tcomplain ());
1112 /* Disable branch tracing and deallocate TINFO. */
1113 void (*to_disable_btrace) (struct target_ops *,
1114 struct btrace_target_info *tinfo)
1115 TARGET_DEFAULT_NORETURN (tcomplain ());
1117 /* Disable branch tracing and deallocate TINFO. This function is similar
1118 to to_disable_btrace, except that it is called during teardown and is
1119 only allowed to perform actions that are safe. A counter-example would
1120 be attempting to talk to a remote target. */
1121 void (*to_teardown_btrace) (struct target_ops *,
1122 struct btrace_target_info *tinfo)
1123 TARGET_DEFAULT_NORETURN (tcomplain ());
1125 /* Read branch trace data for the thread indicated by BTINFO into DATA.
1126 DATA is cleared before new trace is added. */
1127 enum btrace_error (*to_read_btrace) (struct target_ops *self,
1128 struct btrace_data *data,
1129 struct btrace_target_info *btinfo,
1130 enum btrace_read_type type)
1131 TARGET_DEFAULT_NORETURN (tcomplain ());
1133 /* Get the branch trace configuration. */
1134 const struct btrace_config *(*to_btrace_conf) (struct target_ops *self,
1135 const struct btrace_target_info *)
1136 TARGET_DEFAULT_RETURN (NULL);
1138 /* Stop trace recording. */
1139 void (*to_stop_recording) (struct target_ops *)
1140 TARGET_DEFAULT_IGNORE ();
1142 /* Print information about the recording. */
1143 void (*to_info_record) (struct target_ops *)
1144 TARGET_DEFAULT_IGNORE ();
1146 /* Save the recorded execution trace into a file. */
1147 void (*to_save_record) (struct target_ops *, const char *filename)
1148 TARGET_DEFAULT_NORETURN (tcomplain ());
1150 /* Delete the recorded execution trace from the current position
1152 void (*to_delete_record) (struct target_ops *)
1153 TARGET_DEFAULT_NORETURN (tcomplain ());
1155 /* Query if the record target is currently replaying. */
1156 int (*to_record_is_replaying) (struct target_ops *)
1157 TARGET_DEFAULT_RETURN (0);
1159 /* Go to the begin of the execution trace. */
1160 void (*to_goto_record_begin) (struct target_ops *)
1161 TARGET_DEFAULT_NORETURN (tcomplain ());
1163 /* Go to the end of the execution trace. */
1164 void (*to_goto_record_end) (struct target_ops *)
1165 TARGET_DEFAULT_NORETURN (tcomplain ());
1167 /* Go to a specific location in the recorded execution trace. */
1168 void (*to_goto_record) (struct target_ops *, ULONGEST insn)
1169 TARGET_DEFAULT_NORETURN (tcomplain ());
1171 /* Disassemble SIZE instructions in the recorded execution trace from
1172 the current position.
1173 If SIZE < 0, disassemble abs (SIZE) preceding instructions; otherwise,
1174 disassemble SIZE succeeding instructions. */
1175 void (*to_insn_history) (struct target_ops *, int size, int flags)
1176 TARGET_DEFAULT_NORETURN (tcomplain ());
1178 /* Disassemble SIZE instructions in the recorded execution trace around
1180 If SIZE < 0, disassemble abs (SIZE) instructions before FROM; otherwise,
1181 disassemble SIZE instructions after FROM. */
1182 void (*to_insn_history_from) (struct target_ops *,
1183 ULONGEST from, int size, int flags)
1184 TARGET_DEFAULT_NORETURN (tcomplain ());
1186 /* Disassemble a section of the recorded execution trace from instruction
1187 BEGIN (inclusive) to instruction END (inclusive). */
1188 void (*to_insn_history_range) (struct target_ops *,
1189 ULONGEST begin, ULONGEST end, int flags)
1190 TARGET_DEFAULT_NORETURN (tcomplain ());
1192 /* Print a function trace of the recorded execution trace.
1193 If SIZE < 0, print abs (SIZE) preceding functions; otherwise, print SIZE
1194 succeeding functions. */
1195 void (*to_call_history) (struct target_ops *, int size, int flags)
1196 TARGET_DEFAULT_NORETURN (tcomplain ());
1198 /* Print a function trace of the recorded execution trace starting
1200 If SIZE < 0, print abs (SIZE) functions before FROM; otherwise, print
1201 SIZE functions after FROM. */
1202 void (*to_call_history_from) (struct target_ops *,
1203 ULONGEST begin, int size, int flags)
1204 TARGET_DEFAULT_NORETURN (tcomplain ());
1206 /* Print a function trace of an execution trace section from function BEGIN
1207 (inclusive) to function END (inclusive). */
1208 void (*to_call_history_range) (struct target_ops *,
1209 ULONGEST begin, ULONGEST end, int flags)
1210 TARGET_DEFAULT_NORETURN (tcomplain ());
1212 /* Nonzero if TARGET_OBJECT_LIBRARIES_SVR4 may be read with a
1214 int (*to_augmented_libraries_svr4_read) (struct target_ops *)
1215 TARGET_DEFAULT_RETURN (0);
1217 /* Those unwinders are tried before any other arch unwinders. If
1218 SELF doesn't have unwinders, it should delegate to the
1219 "beneath" target. */
1220 const struct frame_unwind *(*to_get_unwinder) (struct target_ops *self)
1221 TARGET_DEFAULT_RETURN (NULL);
1223 const struct frame_unwind *(*to_get_tailcall_unwinder) (struct target_ops *self)
1224 TARGET_DEFAULT_RETURN (NULL);
1226 /* Prepare to generate a core file. */
1227 void (*to_prepare_to_generate_core) (struct target_ops *)
1228 TARGET_DEFAULT_IGNORE ();
1230 /* Cleanup after generating a core file. */
1231 void (*to_done_generating_core) (struct target_ops *)
1232 TARGET_DEFAULT_IGNORE ();
1235 /* Need sub-structure for target machine related rather than comm related?
1239 /* Magic number for checking ops size. If a struct doesn't end with this
1240 number, somebody changed the declaration but didn't change all the
1241 places that initialize one. */
1243 #define OPS_MAGIC 3840
1245 /* The ops structure for our "current" target process. This should
1246 never be NULL. If there is no target, it points to the dummy_target. */
1248 extern struct target_ops current_target;
1250 /* Define easy words for doing these operations on our current target. */
1252 #define target_shortname (current_target.to_shortname)
1253 #define target_longname (current_target.to_longname)
1255 /* Does whatever cleanup is required for a target that we are no
1256 longer going to be calling. This routine is automatically always
1257 called after popping the target off the target stack - the target's
1258 own methods are no longer available through the target vector.
1259 Closing file descriptors and freeing all memory allocated memory are
1260 typical things it should do. */
1262 void target_close (struct target_ops *targ);
1264 /* Find the correct target to use for "attach". If a target on the
1265 current stack supports attaching, then it is returned. Otherwise,
1266 the default run target is returned. */
1268 extern struct target_ops *find_attach_target (void);
1270 /* Find the correct target to use for "run". If a target on the
1271 current stack supports creating a new inferior, then it is
1272 returned. Otherwise, the default run target is returned. */
1274 extern struct target_ops *find_run_target (void);
1276 /* Some targets don't generate traps when attaching to the inferior,
1277 or their target_attach implementation takes care of the waiting.
1278 These targets must set to_attach_no_wait. */
1280 #define target_attach_no_wait \
1281 (current_target.to_attach_no_wait)
1283 /* The target_attach operation places a process under debugger control,
1284 and stops the process.
1286 This operation provides a target-specific hook that allows the
1287 necessary bookkeeping to be performed after an attach completes. */
1288 #define target_post_attach(pid) \
1289 (*current_target.to_post_attach) (¤t_target, pid)
1291 /* Takes a program previously attached to and detaches it.
1292 The program may resume execution (some targets do, some don't) and will
1293 no longer stop on signals, etc. We better not have left any breakpoints
1294 in the program or it'll die when it hits one. ARGS is arguments
1295 typed by the user (e.g. a signal to send the process). FROM_TTY
1296 says whether to be verbose or not. */
1298 extern void target_detach (const char *, int);
1300 /* Disconnect from the current target without resuming it (leaving it
1301 waiting for a debugger). */
1303 extern void target_disconnect (const char *, int);
1305 /* Resume execution of the target process PTID (or a group of
1306 threads). STEP says whether to hardware single-step or to run free;
1307 SIGGNAL is the signal to be given to the target, or GDB_SIGNAL_0 for no
1308 signal. The caller may not pass GDB_SIGNAL_DEFAULT. A specific
1309 PTID means `step/resume only this process id'. A wildcard PTID
1310 (all threads, or all threads of process) means `step/resume
1311 INFERIOR_PTID, and let other threads (for which the wildcard PTID
1312 matches) resume with their 'thread->suspend.stop_signal' signal
1313 (usually GDB_SIGNAL_0) if it is in "pass" state, or with no signal
1314 if in "no pass" state. */
1316 extern void target_resume (ptid_t ptid, int step, enum gdb_signal signal);
1318 /* Wait for process pid to do something. PTID = -1 to wait for any
1319 pid to do something. Return pid of child, or -1 in case of error;
1320 store status through argument pointer STATUS. Note that it is
1321 _NOT_ OK to throw_exception() out of target_wait() without popping
1322 the debugging target from the stack; GDB isn't prepared to get back
1323 to the prompt with a debugging target but without the frame cache,
1324 stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W*
1327 extern ptid_t target_wait (ptid_t ptid, struct target_waitstatus *status,
1330 /* Fetch at least register REGNO, or all regs if regno == -1. No result. */
1332 extern void target_fetch_registers (struct regcache *regcache, int regno);
1334 /* Store at least register REGNO, or all regs if REGNO == -1.
1335 It can store as many registers as it wants to, so target_prepare_to_store
1336 must have been previously called. Calls error() if there are problems. */
1338 extern void target_store_registers (struct regcache *regcache, int regs);
1340 /* Get ready to modify the registers array. On machines which store
1341 individual registers, this doesn't need to do anything. On machines
1342 which store all the registers in one fell swoop, this makes sure
1343 that REGISTERS contains all the registers from the program being
1346 #define target_prepare_to_store(regcache) \
1347 (*current_target.to_prepare_to_store) (¤t_target, regcache)
1349 /* Determine current address space of thread PTID. */
1351 struct address_space *target_thread_address_space (ptid_t);
1353 /* Implement the "info proc" command. This returns one if the request
1354 was handled, and zero otherwise. It can also throw an exception if
1355 an error was encountered while attempting to handle the
1358 int target_info_proc (const char *, enum info_proc_what);
1360 /* Returns true if this target can debug multiple processes
1363 #define target_supports_multi_process() \
1364 (*current_target.to_supports_multi_process) (¤t_target)
1366 /* Returns true if this target can disable address space randomization. */
1368 int target_supports_disable_randomization (void);
1370 /* Returns true if this target can enable and disable tracepoints
1371 while a trace experiment is running. */
1373 #define target_supports_enable_disable_tracepoint() \
1374 (*current_target.to_supports_enable_disable_tracepoint) (¤t_target)
1376 #define target_supports_string_tracing() \
1377 (*current_target.to_supports_string_tracing) (¤t_target)
1379 /* Returns true if this target can handle breakpoint conditions
1382 #define target_supports_evaluation_of_breakpoint_conditions() \
1383 (*current_target.to_supports_evaluation_of_breakpoint_conditions) (¤t_target)
1385 /* Returns true if this target can handle breakpoint commands
1388 #define target_can_run_breakpoint_commands() \
1389 (*current_target.to_can_run_breakpoint_commands) (¤t_target)
1391 extern int target_read_string (CORE_ADDR, char **, int, int *);
1393 /* For target_read_memory see target/target.h. */
1395 extern int target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr,
1398 extern int target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
1400 extern int target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
1402 /* For target_write_memory see target/target.h. */
1404 extern int target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
1407 /* Fetches the target's memory map. If one is found it is sorted
1408 and returned, after some consistency checking. Otherwise, NULL
1410 VEC(mem_region_s) *target_memory_map (void);
1412 /* Erase the specified flash region. */
1413 void target_flash_erase (ULONGEST address, LONGEST length);
1415 /* Finish a sequence of flash operations. */
1416 void target_flash_done (void);
1418 /* Describes a request for a memory write operation. */
1419 struct memory_write_request
1421 /* Begining address that must be written. */
1423 /* Past-the-end address. */
1425 /* The data to write. */
1427 /* A callback baton for progress reporting for this request. */
1430 typedef struct memory_write_request memory_write_request_s;
1431 DEF_VEC_O(memory_write_request_s);
1433 /* Enumeration specifying different flash preservation behaviour. */
1434 enum flash_preserve_mode
1440 /* Write several memory blocks at once. This version can be more
1441 efficient than making several calls to target_write_memory, in
1442 particular because it can optimize accesses to flash memory.
1444 Moreover, this is currently the only memory access function in gdb
1445 that supports writing to flash memory, and it should be used for
1446 all cases where access to flash memory is desirable.
1448 REQUESTS is the vector (see vec.h) of memory_write_request.
1449 PRESERVE_FLASH_P indicates what to do with blocks which must be
1450 erased, but not completely rewritten.
1451 PROGRESS_CB is a function that will be periodically called to provide
1452 feedback to user. It will be called with the baton corresponding
1453 to the request currently being written. It may also be called
1454 with a NULL baton, when preserved flash sectors are being rewritten.
1456 The function returns 0 on success, and error otherwise. */
1457 int target_write_memory_blocks (VEC(memory_write_request_s) *requests,
1458 enum flash_preserve_mode preserve_flash_p,
1459 void (*progress_cb) (ULONGEST, void *));
1461 /* Print a line about the current target. */
1463 #define target_files_info() \
1464 (*current_target.to_files_info) (¤t_target)
1466 /* Insert a breakpoint at address BP_TGT->placed_address in
1467 the target machine. Returns 0 for success, and returns non-zero or
1468 throws an error (with a detailed failure reason error code and
1469 message) otherwise. */
1471 extern int target_insert_breakpoint (struct gdbarch *gdbarch,
1472 struct bp_target_info *bp_tgt);
1474 /* Remove a breakpoint at address BP_TGT->placed_address in the target
1475 machine. Result is 0 for success, non-zero for error. */
1477 extern int target_remove_breakpoint (struct gdbarch *gdbarch,
1478 struct bp_target_info *bp_tgt);
1480 /* Returns true if the terminal settings of the inferior are in
1483 extern int target_terminal_is_inferior (void);
1485 /* Initialize the terminal settings we record for the inferior,
1486 before we actually run the inferior. */
1488 extern void target_terminal_init (void);
1490 /* Put the inferior's terminal settings into effect.
1491 This is preparation for starting or resuming the inferior. */
1493 extern void target_terminal_inferior (void);
1495 /* Put some of our terminal settings into effect, enough to get proper
1496 results from our output, but do not change into or out of RAW mode
1497 so that no input is discarded. This is a no-op if terminal_ours
1498 was most recently called. */
1500 extern void target_terminal_ours_for_output (void);
1502 /* Put our terminal settings into effect.
1503 First record the inferior's terminal settings
1504 so they can be restored properly later. */
1506 extern void target_terminal_ours (void);
1508 /* Return true if the target stack has a non-default
1509 "to_terminal_ours" method. */
1511 extern int target_supports_terminal_ours (void);
1513 /* Make a cleanup that restores the state of the terminal to the current
1515 extern struct cleanup *make_cleanup_restore_target_terminal (void);
1517 /* Print useful information about our terminal status, if such a thing
1520 #define target_terminal_info(arg, from_tty) \
1521 (*current_target.to_terminal_info) (¤t_target, arg, from_tty)
1523 /* Kill the inferior process. Make it go away. */
1525 extern void target_kill (void);
1527 /* Load an executable file into the target process. This is expected
1528 to not only bring new code into the target process, but also to
1529 update GDB's symbol tables to match.
1531 ARG contains command-line arguments, to be broken down with
1532 buildargv (). The first non-switch argument is the filename to
1533 load, FILE; the second is a number (as parsed by strtoul (..., ...,
1534 0)), which is an offset to apply to the load addresses of FILE's
1535 sections. The target may define switches, or other non-switch
1536 arguments, as it pleases. */
1538 extern void target_load (const char *arg, int from_tty);
1540 /* Some targets (such as ttrace-based HPUX) don't allow us to request
1541 notification of inferior events such as fork and vork immediately
1542 after the inferior is created. (This because of how gdb gets an
1543 inferior created via invoking a shell to do it. In such a scenario,
1544 if the shell init file has commands in it, the shell will fork and
1545 exec for each of those commands, and we will see each such fork
1548 Such targets will supply an appropriate definition for this function. */
1550 #define target_post_startup_inferior(ptid) \
1551 (*current_target.to_post_startup_inferior) (¤t_target, ptid)
1553 /* On some targets, we can catch an inferior fork or vfork event when
1554 it occurs. These functions insert/remove an already-created
1555 catchpoint for such events. They return 0 for success, 1 if the
1556 catchpoint type is not supported and -1 for failure. */
1558 #define target_insert_fork_catchpoint(pid) \
1559 (*current_target.to_insert_fork_catchpoint) (¤t_target, pid)
1561 #define target_remove_fork_catchpoint(pid) \
1562 (*current_target.to_remove_fork_catchpoint) (¤t_target, pid)
1564 #define target_insert_vfork_catchpoint(pid) \
1565 (*current_target.to_insert_vfork_catchpoint) (¤t_target, pid)
1567 #define target_remove_vfork_catchpoint(pid) \
1568 (*current_target.to_remove_vfork_catchpoint) (¤t_target, pid)
1570 /* If the inferior forks or vforks, this function will be called at
1571 the next resume in order to perform any bookkeeping and fiddling
1572 necessary to continue debugging either the parent or child, as
1573 requested, and releasing the other. Information about the fork
1574 or vfork event is available via get_last_target_status ().
1575 This function returns 1 if the inferior should not be resumed
1576 (i.e. there is another event pending). */
1578 int target_follow_fork (int follow_child, int detach_fork);
1580 /* On some targets, we can catch an inferior exec event when it
1581 occurs. These functions insert/remove an already-created
1582 catchpoint for such events. They return 0 for success, 1 if the
1583 catchpoint type is not supported and -1 for failure. */
1585 #define target_insert_exec_catchpoint(pid) \
1586 (*current_target.to_insert_exec_catchpoint) (¤t_target, pid)
1588 #define target_remove_exec_catchpoint(pid) \
1589 (*current_target.to_remove_exec_catchpoint) (¤t_target, pid)
1593 NEEDED is nonzero if any syscall catch (of any kind) is requested.
1594 If NEEDED is zero, it means the target can disable the mechanism to
1595 catch system calls because there are no more catchpoints of this type.
1597 ANY_COUNT is nonzero if a generic (filter-less) syscall catch is
1598 being requested. In this case, both TABLE_SIZE and TABLE should
1601 TABLE_SIZE is the number of elements in TABLE. It only matters if
1604 TABLE is an array of ints, indexed by syscall number. An element in
1605 this array is nonzero if that syscall should be caught. This argument
1606 only matters if ANY_COUNT is zero.
1608 Return 0 for success, 1 if syscall catchpoints are not supported or -1
1611 #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \
1612 (*current_target.to_set_syscall_catchpoint) (¤t_target, \
1613 pid, needed, any_count, \
1616 /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
1617 exit code of PID, if any. */
1619 #define target_has_exited(pid,wait_status,exit_status) \
1620 (*current_target.to_has_exited) (¤t_target, \
1621 pid,wait_status,exit_status)
1623 /* The debugger has completed a blocking wait() call. There is now
1624 some process event that must be processed. This function should
1625 be defined by those targets that require the debugger to perform
1626 cleanup or internal state changes in response to the process event. */
1628 /* The inferior process has died. Do what is right. */
1630 void target_mourn_inferior (void);
1632 /* Does target have enough data to do a run or attach command? */
1634 #define target_can_run(t) \
1635 ((t)->to_can_run) (t)
1637 /* Set list of signals to be handled in the target.
1639 PASS_SIGNALS is an array of size NSIG, indexed by target signal number
1640 (enum gdb_signal). For every signal whose entry in this array is
1641 non-zero, the target is allowed -but not required- to skip reporting
1642 arrival of the signal to the GDB core by returning from target_wait,
1643 and to pass the signal directly to the inferior instead.
1645 However, if the target is hardware single-stepping a thread that is
1646 about to receive a signal, it needs to be reported in any case, even
1647 if mentioned in a previous target_pass_signals call. */
1649 extern void target_pass_signals (int nsig, unsigned char *pass_signals);
1651 /* Set list of signals the target may pass to the inferior. This
1652 directly maps to the "handle SIGNAL pass/nopass" setting.
1654 PROGRAM_SIGNALS is an array of size NSIG, indexed by target signal
1655 number (enum gdb_signal). For every signal whose entry in this
1656 array is non-zero, the target is allowed to pass the signal to the
1657 inferior. Signals not present in the array shall be silently
1658 discarded. This does not influence whether to pass signals to the
1659 inferior as a result of a target_resume call. This is useful in
1660 scenarios where the target needs to decide whether to pass or not a
1661 signal to the inferior without GDB core involvement, such as for
1662 example, when detaching (as threads may have been suspended with
1663 pending signals not reported to GDB). */
1665 extern void target_program_signals (int nsig, unsigned char *program_signals);
1667 /* Check to see if a thread is still alive. */
1669 extern int target_thread_alive (ptid_t ptid);
1671 /* Sync the target's threads with GDB's thread list. */
1673 extern void target_update_thread_list (void);
1675 /* Make target stop in a continuable fashion. (For instance, under
1676 Unix, this should act like SIGSTOP). Note that this function is
1677 asynchronous: it does not wait for the target to become stopped
1678 before returning. If this is the behavior you want please use
1679 target_stop_and_wait. */
1681 extern void target_stop (ptid_t ptid);
1683 /* Interrupt the target just like the user typed a ^C on the
1684 inferior's controlling terminal. (For instance, under Unix, this
1685 should act like SIGINT). This function is asynchronous. */
1687 extern void target_interrupt (ptid_t ptid);
1689 /* Some targets install their own SIGINT handler while the target is
1690 running. This method is called from the QUIT macro to give such
1691 targets a chance to process a Ctrl-C. The target may e.g., choose
1692 to interrupt the (potentially) long running operation, or give up
1693 waiting and disconnect. */
1695 extern void target_check_pending_interrupt (void);
1697 /* Send the specified COMMAND to the target's monitor
1698 (shell,interpreter) for execution. The result of the query is
1699 placed in OUTBUF. */
1701 #define target_rcmd(command, outbuf) \
1702 (*current_target.to_rcmd) (¤t_target, command, outbuf)
1705 /* Does the target include all of memory, or only part of it? This
1706 determines whether we look up the target chain for other parts of
1707 memory if this target can't satisfy a request. */
1709 extern int target_has_all_memory_1 (void);
1710 #define target_has_all_memory target_has_all_memory_1 ()
1712 /* Does the target include memory? (Dummy targets don't.) */
1714 extern int target_has_memory_1 (void);
1715 #define target_has_memory target_has_memory_1 ()
1717 /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until
1718 we start a process.) */
1720 extern int target_has_stack_1 (void);
1721 #define target_has_stack target_has_stack_1 ()
1723 /* Does the target have registers? (Exec files don't.) */
1725 extern int target_has_registers_1 (void);
1726 #define target_has_registers target_has_registers_1 ()
1728 /* Does the target have execution? Can we make it jump (through
1729 hoops), or pop its stack a few times? This means that the current
1730 target is currently executing; for some targets, that's the same as
1731 whether or not the target is capable of execution, but there are
1732 also targets which can be current while not executing. In that
1733 case this will become true after to_create_inferior or
1736 extern int target_has_execution_1 (ptid_t);
1738 /* Like target_has_execution_1, but always passes inferior_ptid. */
1740 extern int target_has_execution_current (void);
1742 #define target_has_execution target_has_execution_current ()
1744 /* Default implementations for process_stratum targets. Return true
1745 if there's a selected inferior, false otherwise. */
1747 extern int default_child_has_all_memory (struct target_ops *ops);
1748 extern int default_child_has_memory (struct target_ops *ops);
1749 extern int default_child_has_stack (struct target_ops *ops);
1750 extern int default_child_has_registers (struct target_ops *ops);
1751 extern int default_child_has_execution (struct target_ops *ops,
1754 /* Can the target support the debugger control of thread execution?
1755 Can it lock the thread scheduler? */
1757 #define target_can_lock_scheduler \
1758 (current_target.to_has_thread_control & tc_schedlock)
1760 /* Controls whether async mode is permitted. */
1761 extern int target_async_permitted;
1763 /* Can the target support asynchronous execution? */
1764 #define target_can_async_p() (current_target.to_can_async_p (¤t_target))
1766 /* Is the target in asynchronous execution mode? */
1767 #define target_is_async_p() (current_target.to_is_async_p (¤t_target))
1769 /* Enables/disabled async target events. */
1770 extern void target_async (int enable);
1772 /* Whether support for controlling the target backends always in
1773 non-stop mode is enabled. */
1774 extern enum auto_boolean target_non_stop_enabled;
1776 /* Is the target in non-stop mode? Some targets control the inferior
1777 in non-stop mode even with "set non-stop off". Always true if "set
1779 extern int target_is_non_stop_p (void);
1781 #define target_execution_direction() \
1782 (current_target.to_execution_direction (¤t_target))
1784 /* Converts a process id to a string. Usually, the string just contains
1785 `process xyz', but on some systems it may contain
1786 `process xyz thread abc'. */
1788 extern char *target_pid_to_str (ptid_t ptid);
1790 extern char *normal_pid_to_str (ptid_t ptid);
1792 /* Return a short string describing extra information about PID,
1793 e.g. "sleeping", "runnable", "running on LWP 3". Null return value
1796 #define target_extra_thread_info(TP) \
1797 (current_target.to_extra_thread_info (¤t_target, TP))
1799 /* Return the thread's name. A NULL result means that the target
1800 could not determine this thread's name. */
1802 extern char *target_thread_name (struct thread_info *);
1804 /* Attempts to find the pathname of the executable file
1805 that was run to create a specified process.
1807 The process PID must be stopped when this operation is used.
1809 If the executable file cannot be determined, NULL is returned.
1811 Else, a pointer to a character string containing the pathname
1812 is returned. This string should be copied into a buffer by
1813 the client if the string will not be immediately used, or if
1816 #define target_pid_to_exec_file(pid) \
1817 (current_target.to_pid_to_exec_file) (¤t_target, pid)
1819 /* See the to_thread_architecture description in struct target_ops. */
1821 #define target_thread_architecture(ptid) \
1822 (current_target.to_thread_architecture (¤t_target, ptid))
1825 * Iterator function for target memory regions.
1826 * Calls a callback function once for each memory region 'mapped'
1827 * in the child process. Defined as a simple macro rather than
1828 * as a function macro so that it can be tested for nullity.
1831 #define target_find_memory_regions(FUNC, DATA) \
1832 (current_target.to_find_memory_regions) (¤t_target, FUNC, DATA)
1835 * Compose corefile .note section.
1838 #define target_make_corefile_notes(BFD, SIZE_P) \
1839 (current_target.to_make_corefile_notes) (¤t_target, BFD, SIZE_P)
1841 /* Bookmark interfaces. */
1842 #define target_get_bookmark(ARGS, FROM_TTY) \
1843 (current_target.to_get_bookmark) (¤t_target, ARGS, FROM_TTY)
1845 #define target_goto_bookmark(ARG, FROM_TTY) \
1846 (current_target.to_goto_bookmark) (¤t_target, ARG, FROM_TTY)
1848 /* Hardware watchpoint interfaces. */
1850 /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or
1851 write). Only the INFERIOR_PTID task is being queried. */
1853 #define target_stopped_by_watchpoint() \
1854 ((*current_target.to_stopped_by_watchpoint) (¤t_target))
1856 /* Returns non-zero if the target stopped because it executed a
1857 software breakpoint instruction. */
1859 #define target_stopped_by_sw_breakpoint() \
1860 ((*current_target.to_stopped_by_sw_breakpoint) (¤t_target))
1862 #define target_supports_stopped_by_sw_breakpoint() \
1863 ((*current_target.to_supports_stopped_by_sw_breakpoint) (¤t_target))
1865 #define target_stopped_by_hw_breakpoint() \
1866 ((*current_target.to_stopped_by_hw_breakpoint) (¤t_target))
1868 #define target_supports_stopped_by_hw_breakpoint() \
1869 ((*current_target.to_supports_stopped_by_hw_breakpoint) (¤t_target))
1871 /* Non-zero if we have steppable watchpoints */
1873 #define target_have_steppable_watchpoint \
1874 (current_target.to_have_steppable_watchpoint)
1876 /* Non-zero if we have continuable watchpoints */
1878 #define target_have_continuable_watchpoint \
1879 (current_target.to_have_continuable_watchpoint)
1881 /* Provide defaults for hardware watchpoint functions. */
1883 /* If the *_hw_beakpoint functions have not been defined
1884 elsewhere use the definitions in the target vector. */
1886 /* Returns positive if we can set a hardware watchpoint of type TYPE.
1887 Returns negative if the target doesn't have enough hardware debug
1888 registers available. Return zero if hardware watchpoint of type
1889 TYPE isn't supported. TYPE is one of bp_hardware_watchpoint,
1890 bp_read_watchpoint, bp_write_watchpoint, or bp_hardware_breakpoint.
1891 CNT is the number of such watchpoints used so far, including this
1892 one. OTHERTYPE is who knows what... */
1894 #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \
1895 (*current_target.to_can_use_hw_breakpoint) (¤t_target, \
1896 TYPE, CNT, OTHERTYPE)
1898 /* Returns the number of debug registers needed to watch the given
1899 memory region, or zero if not supported. */
1901 #define target_region_ok_for_hw_watchpoint(addr, len) \
1902 (*current_target.to_region_ok_for_hw_watchpoint) (¤t_target, \
1906 /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes.
1907 TYPE is 0 for write, 1 for read, and 2 for read/write accesses.
1908 COND is the expression for its condition, or NULL if there's none.
1909 Returns 0 for success, 1 if the watchpoint type is not supported,
1912 #define target_insert_watchpoint(addr, len, type, cond) \
1913 (*current_target.to_insert_watchpoint) (¤t_target, \
1914 addr, len, type, cond)
1916 #define target_remove_watchpoint(addr, len, type, cond) \
1917 (*current_target.to_remove_watchpoint) (¤t_target, \
1918 addr, len, type, cond)
1920 /* Insert a new masked watchpoint at ADDR using the mask MASK.
1921 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1922 or hw_access for an access watchpoint. Returns 0 for success, 1 if
1923 masked watchpoints are not supported, -1 for failure. */
1925 extern int target_insert_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
1927 /* Remove a masked watchpoint at ADDR with the mask MASK.
1928 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1929 or hw_access for an access watchpoint. Returns 0 for success, non-zero
1932 extern int target_remove_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
1934 /* Insert a hardware breakpoint at address BP_TGT->placed_address in
1935 the target machine. Returns 0 for success, and returns non-zero or
1936 throws an error (with a detailed failure reason error code and
1937 message) otherwise. */
1939 #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
1940 (*current_target.to_insert_hw_breakpoint) (¤t_target, \
1943 #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
1944 (*current_target.to_remove_hw_breakpoint) (¤t_target, \
1947 /* Return number of debug registers needed for a ranged breakpoint,
1948 or -1 if ranged breakpoints are not supported. */
1950 extern int target_ranged_break_num_registers (void);
1952 /* Return non-zero if target knows the data address which triggered this
1953 target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the
1954 INFERIOR_PTID task is being queried. */
1955 #define target_stopped_data_address(target, addr_p) \
1956 (*(target)->to_stopped_data_address) (target, addr_p)
1958 /* Return non-zero if ADDR is within the range of a watchpoint spanning
1959 LENGTH bytes beginning at START. */
1960 #define target_watchpoint_addr_within_range(target, addr, start, length) \
1961 (*(target)->to_watchpoint_addr_within_range) (target, addr, start, length)
1963 /* Return non-zero if the target is capable of using hardware to evaluate
1964 the condition expression. In this case, if the condition is false when
1965 the watched memory location changes, execution may continue without the
1966 debugger being notified.
1968 Due to limitations in the hardware implementation, it may be capable of
1969 avoiding triggering the watchpoint in some cases where the condition
1970 expression is false, but may report some false positives as well.
1971 For this reason, GDB will still evaluate the condition expression when
1972 the watchpoint triggers. */
1973 #define target_can_accel_watchpoint_condition(addr, len, type, cond) \
1974 (*current_target.to_can_accel_watchpoint_condition) (¤t_target, \
1975 addr, len, type, cond)
1977 /* Return number of debug registers needed for a masked watchpoint,
1978 -1 if masked watchpoints are not supported or -2 if the given address
1979 and mask combination cannot be used. */
1981 extern int target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask);
1983 /* Target can execute in reverse? */
1984 #define target_can_execute_reverse \
1985 current_target.to_can_execute_reverse (¤t_target)
1987 extern const struct target_desc *target_read_description (struct target_ops *);
1989 #define target_get_ada_task_ptid(lwp, tid) \
1990 (*current_target.to_get_ada_task_ptid) (¤t_target, lwp,tid)
1992 /* Utility implementation of searching memory. */
1993 extern int simple_search_memory (struct target_ops* ops,
1994 CORE_ADDR start_addr,
1995 ULONGEST search_space_len,
1996 const gdb_byte *pattern,
1997 ULONGEST pattern_len,
1998 CORE_ADDR *found_addrp);
2000 /* Main entry point for searching memory. */
2001 extern int target_search_memory (CORE_ADDR start_addr,
2002 ULONGEST search_space_len,
2003 const gdb_byte *pattern,
2004 ULONGEST pattern_len,
2005 CORE_ADDR *found_addrp);
2007 /* Target file operations. */
2009 /* Return nonzero if the filesystem seen by the current inferior
2010 is the local filesystem, zero otherwise. */
2011 #define target_filesystem_is_local() \
2012 current_target.to_filesystem_is_local (¤t_target)
2014 /* Open FILENAME on the target, in the filesystem as seen by INF,
2015 using FLAGS and MODE. If INF is NULL, use the filesystem seen
2016 by the debugger (GDB or, for remote targets, the remote stub).
2017 Return a target file descriptor, or -1 if an error occurs (and
2018 set *TARGET_ERRNO). */
2019 extern int target_fileio_open (struct inferior *inf,
2020 const char *filename, int flags,
2021 int mode, int *target_errno);
2023 /* Like target_fileio_open, but print a warning message if the
2024 file is being accessed over a link that may be slow. */
2025 extern int target_fileio_open_warn_if_slow (struct inferior *inf,
2026 const char *filename,
2031 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
2032 Return the number of bytes written, or -1 if an error occurs
2033 (and set *TARGET_ERRNO). */
2034 extern int target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
2035 ULONGEST offset, int *target_errno);
2037 /* Read up to LEN bytes FD on the target into READ_BUF.
2038 Return the number of bytes read, or -1 if an error occurs
2039 (and set *TARGET_ERRNO). */
2040 extern int target_fileio_pread (int fd, gdb_byte *read_buf, int len,
2041 ULONGEST offset, int *target_errno);
2043 /* Get information about the file opened as FD on the target
2044 and put it in SB. Return 0 on success, or -1 if an error
2045 occurs (and set *TARGET_ERRNO). */
2046 extern int target_fileio_fstat (int fd, struct stat *sb,
2049 /* Close FD on the target. Return 0, or -1 if an error occurs
2050 (and set *TARGET_ERRNO). */
2051 extern int target_fileio_close (int fd, int *target_errno);
2053 /* Unlink FILENAME on the target, in the filesystem as seen by INF.
2054 If INF is NULL, use the filesystem seen by the debugger (GDB or,
2055 for remote targets, the remote stub). Return 0, or -1 if an error
2056 occurs (and set *TARGET_ERRNO). */
2057 extern int target_fileio_unlink (struct inferior *inf,
2058 const char *filename,
2061 /* Read value of symbolic link FILENAME on the target, in the
2062 filesystem as seen by INF. If INF is NULL, use the filesystem seen
2063 by the debugger (GDB or, for remote targets, the remote stub).
2064 Return a null-terminated string allocated via xmalloc, or NULL if
2065 an error occurs (and set *TARGET_ERRNO). */
2066 extern char *target_fileio_readlink (struct inferior *inf,
2067 const char *filename,
2070 /* Read target file FILENAME, in the filesystem as seen by INF. If
2071 INF is NULL, use the filesystem seen by the debugger (GDB or, for
2072 remote targets, the remote stub). The return value will be -1 if
2073 the transfer fails or is not supported; 0 if the object is empty;
2074 or the length of the object otherwise. If a positive value is
2075 returned, a sufficiently large buffer will be allocated using
2076 xmalloc and returned in *BUF_P containing the contents of the
2079 This method should be used for objects sufficiently small to store
2080 in a single xmalloc'd buffer, when no fixed bound on the object's
2081 size is known in advance. */
2082 extern LONGEST target_fileio_read_alloc (struct inferior *inf,
2083 const char *filename,
2086 /* Read target file FILENAME, in the filesystem as seen by INF. If
2087 INF is NULL, use the filesystem seen by the debugger (GDB or, for
2088 remote targets, the remote stub). The result is NUL-terminated and
2089 returned as a string, allocated using xmalloc. If an error occurs
2090 or the transfer is unsupported, NULL is returned. Empty objects
2091 are returned as allocated but empty strings. A warning is issued
2092 if the result contains any embedded NUL bytes. */
2093 extern char *target_fileio_read_stralloc (struct inferior *inf,
2094 const char *filename);
2097 /* Tracepoint-related operations. */
2099 #define target_trace_init() \
2100 (*current_target.to_trace_init) (¤t_target)
2102 #define target_download_tracepoint(t) \
2103 (*current_target.to_download_tracepoint) (¤t_target, t)
2105 #define target_can_download_tracepoint() \
2106 (*current_target.to_can_download_tracepoint) (¤t_target)
2108 #define target_download_trace_state_variable(tsv) \
2109 (*current_target.to_download_trace_state_variable) (¤t_target, tsv)
2111 #define target_enable_tracepoint(loc) \
2112 (*current_target.to_enable_tracepoint) (¤t_target, loc)
2114 #define target_disable_tracepoint(loc) \
2115 (*current_target.to_disable_tracepoint) (¤t_target, loc)
2117 #define target_trace_start() \
2118 (*current_target.to_trace_start) (¤t_target)
2120 #define target_trace_set_readonly_regions() \
2121 (*current_target.to_trace_set_readonly_regions) (¤t_target)
2123 #define target_get_trace_status(ts) \
2124 (*current_target.to_get_trace_status) (¤t_target, ts)
2126 #define target_get_tracepoint_status(tp,utp) \
2127 (*current_target.to_get_tracepoint_status) (¤t_target, tp, utp)
2129 #define target_trace_stop() \
2130 (*current_target.to_trace_stop) (¤t_target)
2132 #define target_trace_find(type,num,addr1,addr2,tpp) \
2133 (*current_target.to_trace_find) (¤t_target, \
2134 (type), (num), (addr1), (addr2), (tpp))
2136 #define target_get_trace_state_variable_value(tsv,val) \
2137 (*current_target.to_get_trace_state_variable_value) (¤t_target, \
2140 #define target_save_trace_data(filename) \
2141 (*current_target.to_save_trace_data) (¤t_target, filename)
2143 #define target_upload_tracepoints(utpp) \
2144 (*current_target.to_upload_tracepoints) (¤t_target, utpp)
2146 #define target_upload_trace_state_variables(utsvp) \
2147 (*current_target.to_upload_trace_state_variables) (¤t_target, utsvp)
2149 #define target_get_raw_trace_data(buf,offset,len) \
2150 (*current_target.to_get_raw_trace_data) (¤t_target, \
2151 (buf), (offset), (len))
2153 #define target_get_min_fast_tracepoint_insn_len() \
2154 (*current_target.to_get_min_fast_tracepoint_insn_len) (¤t_target)
2156 #define target_set_disconnected_tracing(val) \
2157 (*current_target.to_set_disconnected_tracing) (¤t_target, val)
2159 #define target_set_circular_trace_buffer(val) \
2160 (*current_target.to_set_circular_trace_buffer) (¤t_target, val)
2162 #define target_set_trace_buffer_size(val) \
2163 (*current_target.to_set_trace_buffer_size) (¤t_target, val)
2165 #define target_set_trace_notes(user,notes,stopnotes) \
2166 (*current_target.to_set_trace_notes) (¤t_target, \
2167 (user), (notes), (stopnotes))
2169 #define target_get_tib_address(ptid, addr) \
2170 (*current_target.to_get_tib_address) (¤t_target, (ptid), (addr))
2172 #define target_set_permissions() \
2173 (*current_target.to_set_permissions) (¤t_target)
2175 #define target_static_tracepoint_marker_at(addr, marker) \
2176 (*current_target.to_static_tracepoint_marker_at) (¤t_target, \
2179 #define target_static_tracepoint_markers_by_strid(marker_id) \
2180 (*current_target.to_static_tracepoint_markers_by_strid) (¤t_target, \
2183 #define target_traceframe_info() \
2184 (*current_target.to_traceframe_info) (¤t_target)
2186 #define target_use_agent(use) \
2187 (*current_target.to_use_agent) (¤t_target, use)
2189 #define target_can_use_agent() \
2190 (*current_target.to_can_use_agent) (¤t_target)
2192 #define target_augmented_libraries_svr4_read() \
2193 (*current_target.to_augmented_libraries_svr4_read) (¤t_target)
2195 /* Command logging facility. */
2197 #define target_log_command(p) \
2198 (*current_target.to_log_command) (¤t_target, p)
2201 extern int target_core_of_thread (ptid_t ptid);
2203 /* See to_get_unwinder in struct target_ops. */
2204 extern const struct frame_unwind *target_get_unwinder (void);
2206 /* See to_get_tailcall_unwinder in struct target_ops. */
2207 extern const struct frame_unwind *target_get_tailcall_unwinder (void);
2209 /* This implements basic memory verification, reading target memory
2210 and performing the comparison here (as opposed to accelerated
2211 verification making use of the qCRC packet, for example). */
2213 extern int simple_verify_memory (struct target_ops* ops,
2214 const gdb_byte *data,
2215 CORE_ADDR memaddr, ULONGEST size);
2217 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches
2218 the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0
2219 if there's a mismatch, and -1 if an error is encountered while
2220 reading memory. Throws an error if the functionality is found not
2221 to be supported by the current target. */
2222 int target_verify_memory (const gdb_byte *data,
2223 CORE_ADDR memaddr, ULONGEST size);
2225 /* Routines for maintenance of the target structures...
2227 complete_target_initialization: Finalize a target_ops by filling in
2228 any fields needed by the target implementation. Unnecessary for
2229 targets which are registered via add_target, as this part gets
2232 add_target: Add a target to the list of all possible targets.
2233 This only makes sense for targets that should be activated using
2234 the "target TARGET_NAME ..." command.
2236 push_target: Make this target the top of the stack of currently used
2237 targets, within its particular stratum of the stack. Result
2238 is 0 if now atop the stack, nonzero if not on top (maybe
2241 unpush_target: Remove this from the stack of currently used targets,
2242 no matter where it is on the list. Returns 0 if no
2243 change, 1 if removed from stack. */
2245 extern void add_target (struct target_ops *);
2247 extern void add_target_with_completer (struct target_ops *t,
2248 completer_ftype *completer);
2250 extern void complete_target_initialization (struct target_ops *t);
2252 /* Adds a command ALIAS for target T and marks it deprecated. This is useful
2253 for maintaining backwards compatibility when renaming targets. */
2255 extern void add_deprecated_target_alias (struct target_ops *t, char *alias);
2257 extern void push_target (struct target_ops *);
2259 extern int unpush_target (struct target_ops *);
2261 extern void target_pre_inferior (int);
2263 extern void target_preopen (int);
2265 /* Does whatever cleanup is required to get rid of all pushed targets. */
2266 extern void pop_all_targets (void);
2268 /* Like pop_all_targets, but pops only targets whose stratum is
2269 strictly above ABOVE_STRATUM. */
2270 extern void pop_all_targets_above (enum strata above_stratum);
2272 extern int target_is_pushed (struct target_ops *t);
2274 extern CORE_ADDR target_translate_tls_address (struct objfile *objfile,
2277 /* Struct target_section maps address ranges to file sections. It is
2278 mostly used with BFD files, but can be used without (e.g. for handling
2279 raw disks, or files not in formats handled by BFD). */
2281 struct target_section
2283 CORE_ADDR addr; /* Lowest address in section */
2284 CORE_ADDR endaddr; /* 1+highest address in section */
2286 struct bfd_section *the_bfd_section;
2288 /* The "owner" of the section.
2289 It can be any unique value. It is set by add_target_sections
2290 and used by remove_target_sections.
2291 For example, for executables it is a pointer to exec_bfd and
2292 for shlibs it is the so_list pointer. */
2296 /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */
2298 struct target_section_table
2300 struct target_section *sections;
2301 struct target_section *sections_end;
2304 /* Return the "section" containing the specified address. */
2305 struct target_section *target_section_by_addr (struct target_ops *target,
2308 /* Return the target section table this target (or the targets
2309 beneath) currently manipulate. */
2311 extern struct target_section_table *target_get_section_table
2312 (struct target_ops *target);
2314 /* From mem-break.c */
2316 extern int memory_remove_breakpoint (struct target_ops *, struct gdbarch *,
2317 struct bp_target_info *);
2319 extern int memory_insert_breakpoint (struct target_ops *, struct gdbarch *,
2320 struct bp_target_info *);
2322 /* Check whether the memory at the breakpoint's placed address still
2323 contains the expected breakpoint instruction. */
2325 extern int memory_validate_breakpoint (struct gdbarch *gdbarch,
2326 struct bp_target_info *bp_tgt);
2328 extern int default_memory_remove_breakpoint (struct gdbarch *,
2329 struct bp_target_info *);
2331 extern int default_memory_insert_breakpoint (struct gdbarch *,
2332 struct bp_target_info *);
2337 extern void initialize_targets (void);
2339 extern void noprocess (void) ATTRIBUTE_NORETURN;
2341 extern void target_require_runnable (void);
2343 extern struct target_ops *find_target_beneath (struct target_ops *);
2345 /* Find the target at STRATUM. If no target is at that stratum,
2348 struct target_ops *find_target_at (enum strata stratum);
2350 /* Read OS data object of type TYPE from the target, and return it in
2351 XML format. The result is NUL-terminated and returned as a string,
2352 allocated using xmalloc. If an error occurs or the transfer is
2353 unsupported, NULL is returned. Empty objects are returned as
2354 allocated but empty strings. */
2356 extern char *target_get_osdata (const char *type);
2359 /* Stuff that should be shared among the various remote targets. */
2361 /* Debugging level. 0 is off, and non-zero values mean to print some debug
2362 information (higher values, more information). */
2363 extern int remote_debug;
2365 /* Speed in bits per second, or -1 which means don't mess with the speed. */
2366 extern int baud_rate;
2368 /* Parity for serial port */
2369 extern int serial_parity;
2371 /* Timeout limit for response from target. */
2372 extern int remote_timeout;
2376 /* Set the show memory breakpoints mode to show, and installs a cleanup
2377 to restore it back to the current value. */
2378 extern struct cleanup *make_show_memory_breakpoints_cleanup (int show);
2380 extern int may_write_registers;
2381 extern int may_write_memory;
2382 extern int may_insert_breakpoints;
2383 extern int may_insert_tracepoints;
2384 extern int may_insert_fast_tracepoints;
2385 extern int may_stop;
2387 extern void update_target_permissions (void);
2390 /* Imported from machine dependent code. */
2392 /* See to_supports_btrace in struct target_ops. */
2393 extern int target_supports_btrace (enum btrace_format);
2395 /* See to_enable_btrace in struct target_ops. */
2396 extern struct btrace_target_info *
2397 target_enable_btrace (ptid_t ptid, const struct btrace_config *);
2399 /* See to_disable_btrace in struct target_ops. */
2400 extern void target_disable_btrace (struct btrace_target_info *btinfo);
2402 /* See to_teardown_btrace in struct target_ops. */
2403 extern void target_teardown_btrace (struct btrace_target_info *btinfo);
2405 /* See to_read_btrace in struct target_ops. */
2406 extern enum btrace_error target_read_btrace (struct btrace_data *,
2407 struct btrace_target_info *,
2408 enum btrace_read_type);
2410 /* See to_btrace_conf in struct target_ops. */
2411 extern const struct btrace_config *
2412 target_btrace_conf (const struct btrace_target_info *);
2414 /* See to_stop_recording in struct target_ops. */
2415 extern void target_stop_recording (void);
2417 /* See to_save_record in struct target_ops. */
2418 extern void target_save_record (const char *filename);
2420 /* Query if the target supports deleting the execution log. */
2421 extern int target_supports_delete_record (void);
2423 /* See to_delete_record in struct target_ops. */
2424 extern void target_delete_record (void);
2426 /* See to_record_is_replaying in struct target_ops. */
2427 extern int target_record_is_replaying (void);
2429 /* See to_goto_record_begin in struct target_ops. */
2430 extern void target_goto_record_begin (void);
2432 /* See to_goto_record_end in struct target_ops. */
2433 extern void target_goto_record_end (void);
2435 /* See to_goto_record in struct target_ops. */
2436 extern void target_goto_record (ULONGEST insn);
2438 /* See to_insn_history. */
2439 extern void target_insn_history (int size, int flags);
2441 /* See to_insn_history_from. */
2442 extern void target_insn_history_from (ULONGEST from, int size, int flags);
2444 /* See to_insn_history_range. */
2445 extern void target_insn_history_range (ULONGEST begin, ULONGEST end, int flags);
2447 /* See to_call_history. */
2448 extern void target_call_history (int size, int flags);
2450 /* See to_call_history_from. */
2451 extern void target_call_history_from (ULONGEST begin, int size, int flags);
2453 /* See to_call_history_range. */
2454 extern void target_call_history_range (ULONGEST begin, ULONGEST end, int flags);
2456 /* See to_prepare_to_generate_core. */
2457 extern void target_prepare_to_generate_core (void);
2459 /* See to_done_generating_core. */
2460 extern void target_done_generating_core (void);
2462 #endif /* !defined (TARGET_H) */