convert to_thread_alive
[deliverable/binutils-gdb.git] / gdb / target.h
CommitLineData
c906108c 1/* Interface between GDB and target environments, including files and processes
0088c768 2
ecd75fc8 3 Copyright (C) 1990-2014 Free Software Foundation, Inc.
0088c768 4
c906108c
SS
5 Contributed by Cygnus Support. Written by John Gilmore.
6
c5aa993b 7 This file is part of GDB.
c906108c 8
c5aa993b
JM
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
a9762ec7 11 the Free Software Foundation; either version 3 of the License, or
c5aa993b 12 (at your option) any later version.
c906108c 13
c5aa993b
JM
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.
c906108c 18
c5aa993b 19 You should have received a copy of the GNU General Public License
a9762ec7 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
c906108c
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21
22#if !defined (TARGET_H)
23#define TARGET_H
24
da3331ec
AC
25struct objfile;
26struct ui_file;
27struct mem_attrib;
1e3ff5ad 28struct target_ops;
d248b706 29struct bp_location;
8181d85f 30struct bp_target_info;
56be3814 31struct regcache;
07b82ea5 32struct target_section_table;
35b1e5cc 33struct trace_state_variable;
00bf0b85
SS
34struct trace_status;
35struct uploaded_tsv;
36struct uploaded_tp;
0fb4aa4b 37struct static_tracepoint_marker;
b3b9301e 38struct traceframe_info;
0cf6dd15 39struct expression;
2a2f9fe4 40struct dcache_struct;
0cf6dd15 41
c906108c
SS
42/* This include file defines the interface between the main part
43 of the debugger, and the part which is target-specific, or
44 specific to the communications interface between us and the
45 target.
46
2146d243
RM
47 A TARGET is an interface between the debugger and a particular
48 kind of file or process. Targets can be STACKED in STRATA,
c906108c
SS
49 so that more than one target can potentially respond to a request.
50 In particular, memory accesses will walk down the stack of targets
51 until they find a target that is interested in handling that particular
52 address. STRATA are artificial boundaries on the stack, within
53 which particular kinds of targets live. Strata exist so that
54 people don't get confused by pushing e.g. a process target and then
55 a file target, and wondering why they can't see the current values
56 of variables any more (the file target is handling them and they
57 never get to the process target). So when you push a file target,
58 it goes into the file stratum, which is always below the process
59 stratum. */
60
33b60d58
LM
61#include "target/resume.h"
62#include "target/wait.h"
63#include "target/waitstatus.h"
c906108c
SS
64#include "bfd.h"
65#include "symtab.h"
29e57380 66#include "memattr.h"
fd79ecee 67#include "vec.h"
2aecd87f 68#include "gdb_signals.h"
02d27625 69#include "btrace.h"
9852c492 70#include "command.h"
c906108c 71
c5aa993b
JM
72enum strata
73 {
74 dummy_stratum, /* The lowest of the low */
75 file_stratum, /* Executable files, etc */
c0edd9ed 76 process_stratum, /* Executing processes or core dump files */
81e64f55 77 thread_stratum, /* Executing threads */
85e747d2
UW
78 record_stratum, /* Support record debugging */
79 arch_stratum /* Architecture overrides */
c5aa993b 80 };
c906108c 81
c5aa993b
JM
82enum thread_control_capabilities
83 {
0d06e24b
JM
84 tc_none = 0, /* Default: can't control thread execution. */
85 tc_schedlock = 1, /* Can lock the thread scheduler. */
c5aa993b 86 };
c906108c 87
a96d9b2e
SDJ
88/* The structure below stores information about a system call.
89 It is basically used in the "catch syscall" command, and in
90 every function that gives information about a system call.
91
92 It's also good to mention that its fields represent everything
93 that we currently know about a syscall in GDB. */
94struct syscall
95 {
96 /* The syscall number. */
97 int number;
98
99 /* The syscall name. */
100 const char *name;
101 };
102
f00150c9
DE
103/* Return a pretty printed form of target_waitstatus.
104 Space for the result is malloc'd, caller must free. */
105extern char *target_waitstatus_to_string (const struct target_waitstatus *);
106
09826ec5
PA
107/* Return a pretty printed form of TARGET_OPTIONS.
108 Space for the result is malloc'd, caller must free. */
109extern char *target_options_to_string (int target_options);
110
2acceee2 111/* Possible types of events that the inferior handler will have to
0d06e24b 112 deal with. */
2acceee2
JM
113enum inferior_event_type
114 {
2acceee2 115 /* Process a normal inferior event which will result in target_wait
0d06e24b 116 being called. */
2146d243 117 INF_REG_EVENT,
0d06e24b 118 /* We are called because a timer went off. */
2acceee2 119 INF_TIMER,
0d06e24b 120 /* We are called to do stuff after the inferior stops. */
c2d11a7d
JM
121 INF_EXEC_COMPLETE,
122 /* We are called to do some stuff after the inferior stops, but we
123 are expected to reenter the proceed() and
c378eb4e 124 handle_inferior_event() functions. This is used only in case of
0d06e24b 125 'step n' like commands. */
c2d11a7d 126 INF_EXEC_CONTINUE
2acceee2 127 };
c906108c 128\f
13547ab6
DJ
129/* Target objects which can be transfered using target_read,
130 target_write, et cetera. */
1e3ff5ad
AC
131
132enum target_object
133{
1e3ff5ad
AC
134 /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */
135 TARGET_OBJECT_AVR,
23d964e7
UW
136 /* SPU target specific transfer. See "spu-tdep.c". */
137 TARGET_OBJECT_SPU,
1e3ff5ad 138 /* Transfer up-to LEN bytes of memory starting at OFFSET. */
287a334e 139 TARGET_OBJECT_MEMORY,
cf7a04e8
DJ
140 /* Memory, avoiding GDB's data cache and trusting the executable.
141 Target implementations of to_xfer_partial never need to handle
142 this object, and most callers should not use it. */
143 TARGET_OBJECT_RAW_MEMORY,
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DE
144 /* Memory known to be part of the target's stack. This is cached even
145 if it is not in a region marked as such, since it is known to be
146 "normal" RAM. */
147 TARGET_OBJECT_STACK_MEMORY,
29453a14
YQ
148 /* Memory known to be part of the target code. This is cached even
149 if it is not in a region marked as such. */
150 TARGET_OBJECT_CODE_MEMORY,
287a334e
JJ
151 /* Kernel Unwind Table. See "ia64-tdep.c". */
152 TARGET_OBJECT_UNWIND_TABLE,
2146d243
RM
153 /* Transfer auxilliary vector. */
154 TARGET_OBJECT_AUXV,
baf92889 155 /* StackGhost cookie. See "sparc-tdep.c". */
fd79ecee
DJ
156 TARGET_OBJECT_WCOOKIE,
157 /* Target memory map in XML format. */
158 TARGET_OBJECT_MEMORY_MAP,
a76d924d
DJ
159 /* Flash memory. This object can be used to write contents to
160 a previously erased flash memory. Using it without erasing
161 flash can have unexpected results. Addresses are physical
162 address on target, and not relative to flash start. */
23181151
DJ
163 TARGET_OBJECT_FLASH,
164 /* Available target-specific features, e.g. registers and coprocessors.
165 See "target-descriptions.c". ANNEX should never be empty. */
cfa9d6d9
DJ
166 TARGET_OBJECT_AVAILABLE_FEATURES,
167 /* Currently loaded libraries, in XML format. */
07e059b5 168 TARGET_OBJECT_LIBRARIES,
2268b414
JK
169 /* Currently loaded libraries specific for SVR4 systems, in XML format. */
170 TARGET_OBJECT_LIBRARIES_SVR4,
4d1eb6b4 171 /* Currently loaded libraries specific to AIX systems, in XML format. */
ff99b71b 172 TARGET_OBJECT_LIBRARIES_AIX,
07e059b5 173 /* Get OS specific data. The ANNEX specifies the type (running
113a6f1e
JB
174 processes, etc.). The data being transfered is expected to follow
175 the DTD specified in features/osdata.dtd. */
4aa995e1
PA
176 TARGET_OBJECT_OSDATA,
177 /* Extra signal info. Usually the contents of `siginfo_t' on unix
178 platforms. */
179 TARGET_OBJECT_SIGNAL_INFO,
dc146f7c
VP
180 /* The list of threads that are being debugged. */
181 TARGET_OBJECT_THREADS,
0fb4aa4b
PA
182 /* Collected static trace data. */
183 TARGET_OBJECT_STATIC_TRACE_DATA,
77ca787b
JB
184 /* The HP-UX registers (those that can be obtained or modified by using
185 the TT_LWP_RUREGS/TT_LWP_WUREGS ttrace requests). */
186 TARGET_OBJECT_HPUX_UREGS,
c4de7027
JB
187 /* The HP-UX shared library linkage pointer. ANNEX should be a string
188 image of the code address whose linkage pointer we are looking for.
189
190 The size of the data transfered is always 8 bytes (the size of an
191 address on ia64). */
192 TARGET_OBJECT_HPUX_SOLIB_GOT,
b3b9301e
PA
193 /* Traceframe info, in XML format. */
194 TARGET_OBJECT_TRACEFRAME_INFO,
78d85199
YQ
195 /* Load maps for FDPIC systems. */
196 TARGET_OBJECT_FDPIC,
f00c55f8 197 /* Darwin dynamic linker info data. */
169081d0
TG
198 TARGET_OBJECT_DARWIN_DYLD_INFO,
199 /* OpenVMS Unwind Information Block. */
02d27625 200 TARGET_OBJECT_OPENVMS_UIB,
9accd112
MM
201 /* Branch trace data, in XML format. */
202 TARGET_OBJECT_BTRACE
c378eb4e 203 /* Possible future objects: TARGET_OBJECT_FILE, ... */
1e3ff5ad
AC
204};
205
9b409511 206/* Possible values returned by target_xfer_partial, etc. */
6be7b56e 207
9b409511 208enum target_xfer_status
6be7b56e 209{
9b409511
YQ
210 /* Some bytes are transferred. */
211 TARGET_XFER_OK = 1,
212
213 /* No further transfer is possible. */
214 TARGET_XFER_EOF = 0,
215
6be7b56e
PA
216 /* Generic I/O error. Note that it's important that this is '-1',
217 as we still have target_xfer-related code returning hardcoded
218 '-1' on error. */
219 TARGET_XFER_E_IO = -1,
220
221 /* Transfer failed because the piece of the object requested is
222 unavailable. */
223 TARGET_XFER_E_UNAVAILABLE = -2,
224
225 /* Keep list in sync with target_xfer_error_to_string. */
226};
227
9b409511
YQ
228#define TARGET_XFER_STATUS_ERROR_P(STATUS) ((STATUS) < TARGET_XFER_EOF)
229
6be7b56e
PA
230/* Return the string form of ERR. */
231
9b409511 232extern const char *target_xfer_status_to_string (enum target_xfer_status err);
6be7b56e 233
35b1e5cc
SS
234/* Enumeration of the kinds of traceframe searches that a target may
235 be able to perform. */
236
237enum trace_find_type
238 {
239 tfind_number,
240 tfind_pc,
241 tfind_tp,
242 tfind_range,
243 tfind_outside,
244 };
245
0fb4aa4b
PA
246typedef struct static_tracepoint_marker *static_tracepoint_marker_p;
247DEF_VEC_P(static_tracepoint_marker_p);
248
9b409511 249typedef enum target_xfer_status
4ac248ca
YQ
250 target_xfer_partial_ftype (struct target_ops *ops,
251 enum target_object object,
252 const char *annex,
253 gdb_byte *readbuf,
254 const gdb_byte *writebuf,
255 ULONGEST offset,
9b409511
YQ
256 ULONGEST len,
257 ULONGEST *xfered_len);
4ac248ca 258
13547ab6
DJ
259/* Request that OPS transfer up to LEN 8-bit bytes of the target's
260 OBJECT. The OFFSET, for a seekable object, specifies the
261 starting point. The ANNEX can be used to provide additional
262 data-specific information to the target.
1e3ff5ad 263
578d3588
PA
264 Return the number of bytes actually transfered, or a negative error
265 code (an 'enum target_xfer_error' value) if the transfer is not
266 supported or otherwise fails. Return of a positive value less than
267 LEN indicates that no further transfer is possible. Unlike the raw
268 to_xfer_partial interface, callers of these functions do not need
269 to retry partial transfers. */
1e3ff5ad 270
1e3ff5ad
AC
271extern LONGEST target_read (struct target_ops *ops,
272 enum target_object object,
1b0ba102 273 const char *annex, gdb_byte *buf,
1e3ff5ad
AC
274 ULONGEST offset, LONGEST len);
275
8dedea02
VP
276struct memory_read_result
277 {
c378eb4e 278 /* First address that was read. */
8dedea02
VP
279 ULONGEST begin;
280 /* Past-the-end address. */
281 ULONGEST end;
282 /* The data. */
283 gdb_byte *data;
284};
285typedef struct memory_read_result memory_read_result_s;
286DEF_VEC_O(memory_read_result_s);
287
288extern void free_memory_read_result_vector (void *);
289
290extern VEC(memory_read_result_s)* read_memory_robust (struct target_ops *ops,
291 ULONGEST offset,
292 LONGEST len);
d5086790 293
1e3ff5ad
AC
294extern LONGEST target_write (struct target_ops *ops,
295 enum target_object object,
1b0ba102 296 const char *annex, const gdb_byte *buf,
1e3ff5ad 297 ULONGEST offset, LONGEST len);
b6591e8b 298
a76d924d
DJ
299/* Similar to target_write, except that it also calls PROGRESS with
300 the number of bytes written and the opaque BATON after every
301 successful partial write (and before the first write). This is
302 useful for progress reporting and user interaction while writing
303 data. To abort the transfer, the progress callback can throw an
304 exception. */
305
cf7a04e8
DJ
306LONGEST target_write_with_progress (struct target_ops *ops,
307 enum target_object object,
308 const char *annex, const gdb_byte *buf,
309 ULONGEST offset, LONGEST len,
310 void (*progress) (ULONGEST, void *),
311 void *baton);
312
13547ab6
DJ
313/* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will
314 be read using OPS. The return value will be -1 if the transfer
315 fails or is not supported; 0 if the object is empty; or the length
316 of the object otherwise. If a positive value is returned, a
317 sufficiently large buffer will be allocated using xmalloc and
318 returned in *BUF_P containing the contents of the object.
319
320 This method should be used for objects sufficiently small to store
321 in a single xmalloc'd buffer, when no fixed bound on the object's
322 size is known in advance. Don't try to read TARGET_OBJECT_MEMORY
323 through this function. */
324
325extern LONGEST target_read_alloc (struct target_ops *ops,
326 enum target_object object,
327 const char *annex, gdb_byte **buf_p);
328
159f81f3
DJ
329/* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
330 returned as a string, allocated using xmalloc. If an error occurs
331 or the transfer is unsupported, NULL is returned. Empty objects
332 are returned as allocated but empty strings. A warning is issued
333 if the result contains any embedded NUL bytes. */
334
335extern char *target_read_stralloc (struct target_ops *ops,
336 enum target_object object,
337 const char *annex);
338
6be7b56e 339/* See target_ops->to_xfer_partial. */
4ac248ca 340extern target_xfer_partial_ftype target_xfer_partial;
6be7b56e 341
b6591e8b
AC
342/* Wrappers to target read/write that perform memory transfers. They
343 throw an error if the memory transfer fails.
344
345 NOTE: cagney/2003-10-23: The naming schema is lifted from
346 "frame.h". The parameter order is lifted from get_frame_memory,
347 which in turn lifted it from read_memory. */
348
349extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr,
1b0ba102 350 gdb_byte *buf, LONGEST len);
b6591e8b 351extern ULONGEST get_target_memory_unsigned (struct target_ops *ops,
e17a4113
UW
352 CORE_ADDR addr, int len,
353 enum bfd_endian byte_order);
1e3ff5ad 354\f
0d06e24b
JM
355struct thread_info; /* fwd decl for parameter list below: */
356
b0a16e66
TT
357/* The type of the callback to the to_async method. */
358
359typedef void async_callback_ftype (enum inferior_event_type event_type,
360 void *context);
361
1101cb7b
TT
362/* These defines are used to mark target_ops methods. The script
363 make-target-delegates scans these and auto-generates the base
364 method implementations. There are four macros that can be used:
365
366 1. TARGET_DEFAULT_IGNORE. There is no argument. The base method
367 does nothing. This is only valid if the method return type is
368 'void'.
369
370 2. TARGET_DEFAULT_NORETURN. The argument is a function call, like
371 'tcomplain ()'. The base method simply makes this call, which is
372 assumed not to return.
373
374 3. TARGET_DEFAULT_RETURN. The argument is a C expression. The
375 base method returns this expression's value.
376
377 4. TARGET_DEFAULT_FUNC. The argument is the name of a function.
378 make-target-delegates does not generate a base method in this case,
379 but instead uses the argument function as the base method. */
380
381#define TARGET_DEFAULT_IGNORE()
382#define TARGET_DEFAULT_NORETURN(ARG)
383#define TARGET_DEFAULT_RETURN(ARG)
384#define TARGET_DEFAULT_FUNC(ARG)
385
c906108c 386struct target_ops
c5aa993b 387 {
258b763a 388 struct target_ops *beneath; /* To the target under this one. */
c5aa993b
JM
389 char *to_shortname; /* Name this target type */
390 char *to_longname; /* Name for printing */
391 char *to_doc; /* Documentation. Does not include trailing
c906108c 392 newline, and starts with a one-line descrip-
0d06e24b 393 tion (probably similar to to_longname). */
bba2d28d
AC
394 /* Per-target scratch pad. */
395 void *to_data;
f1c07ab0
AC
396 /* The open routine takes the rest of the parameters from the
397 command, and (if successful) pushes a new target onto the
398 stack. Targets should supply this routine, if only to provide
399 an error message. */
507f3c78 400 void (*to_open) (char *, int);
f1c07ab0
AC
401 /* Old targets with a static target vector provide "to_close".
402 New re-entrant targets provide "to_xclose" and that is expected
403 to xfree everything (including the "struct target_ops"). */
460014f5 404 void (*to_xclose) (struct target_ops *targ);
de90e03d 405 void (*to_close) (struct target_ops *);
e9a29200
TT
406 void (*to_attach) (struct target_ops *ops, char *, int)
407 TARGET_DEFAULT_FUNC (find_default_attach);
bebd3233
TT
408 void (*to_post_attach) (struct target_ops *, int)
409 TARGET_DEFAULT_IGNORE ();
09da0d0a
TT
410 void (*to_detach) (struct target_ops *ops, const char *, int)
411 TARGET_DEFAULT_IGNORE ();
597320e7 412 void (*to_disconnect) (struct target_ops *, char *, int);
6b84065d
TT
413 void (*to_resume) (struct target_ops *, ptid_t, int, enum gdb_signal)
414 TARGET_DEFAULT_NORETURN (noprocess ());
117de6a9 415 ptid_t (*to_wait) (struct target_ops *,
6b84065d
TT
416 ptid_t, struct target_waitstatus *, int)
417 TARGET_DEFAULT_NORETURN (noprocess ());
ad5989bd
TT
418 void (*to_fetch_registers) (struct target_ops *, struct regcache *, int)
419 TARGET_DEFAULT_IGNORE ();
6b84065d
TT
420 void (*to_store_registers) (struct target_ops *, struct regcache *, int)
421 TARGET_DEFAULT_NORETURN (noprocess ());
6c628163
TT
422 void (*to_prepare_to_store) (struct target_ops *, struct regcache *)
423 TARGET_DEFAULT_NORETURN (noprocess ());
c5aa993b
JM
424
425 /* Transfer LEN bytes of memory between GDB address MYADDR and
426 target address MEMADDR. If WRITE, transfer them to the target, else
427 transfer them from the target. TARGET is the target from which we
428 get this function.
429
430 Return value, N, is one of the following:
431
432 0 means that we can't handle this. If errno has been set, it is the
433 error which prevented us from doing it (FIXME: What about bfd_error?).
434
435 positive (call it N) means that we have transferred N bytes
436 starting at MEMADDR. We might be able to handle more bytes
437 beyond this length, but no promises.
438
439 negative (call its absolute value N) means that we cannot
440 transfer right at MEMADDR, but we could transfer at least
c8e73a31 441 something at MEMADDR + N.
c5aa993b 442
c8e73a31
AC
443 NOTE: cagney/2004-10-01: This has been entirely superseeded by
444 to_xfer_partial and inferior inheritance. */
445
1b0ba102 446 int (*deprecated_xfer_memory) (CORE_ADDR memaddr, gdb_byte *myaddr,
c8e73a31
AC
447 int len, int write,
448 struct mem_attrib *attrib,
449 struct target_ops *target);
c906108c 450
f86e59b2
TT
451 void (*to_files_info) (struct target_ops *)
452 TARGET_DEFAULT_IGNORE ();
3db08215 453 int (*to_insert_breakpoint) (struct target_ops *, struct gdbarch *,
6b84065d
TT
454 struct bp_target_info *)
455 TARGET_DEFAULT_FUNC (memory_insert_breakpoint);
3db08215 456 int (*to_remove_breakpoint) (struct target_ops *, struct gdbarch *,
6b84065d
TT
457 struct bp_target_info *)
458 TARGET_DEFAULT_FUNC (memory_remove_breakpoint);
52b51d06
TT
459 int (*to_can_use_hw_breakpoint) (struct target_ops *, int, int, int)
460 TARGET_DEFAULT_RETURN (0);
a134316b
TT
461 int (*to_ranged_break_num_registers) (struct target_ops *)
462 TARGET_DEFAULT_RETURN (-1);
23a26771 463 int (*to_insert_hw_breakpoint) (struct target_ops *,
61b371f9
TT
464 struct gdbarch *, struct bp_target_info *)
465 TARGET_DEFAULT_RETURN (-1);
a64dc96c 466 int (*to_remove_hw_breakpoint) (struct target_ops *,
418dabac
TT
467 struct gdbarch *, struct bp_target_info *)
468 TARGET_DEFAULT_RETURN (-1);
0cf6dd15
TJB
469
470 /* Documentation of what the two routines below are expected to do is
471 provided with the corresponding target_* macros. */
11b5219a 472 int (*to_remove_watchpoint) (struct target_ops *,
61dd109f
TT
473 CORE_ADDR, int, int, struct expression *)
474 TARGET_DEFAULT_RETURN (-1);
7bb99c53 475 int (*to_insert_watchpoint) (struct target_ops *,
016facd4
TT
476 CORE_ADDR, int, int, struct expression *)
477 TARGET_DEFAULT_RETURN (-1);
0cf6dd15 478
9c06b0b4 479 int (*to_insert_mask_watchpoint) (struct target_ops *,
cd4ae029
TT
480 CORE_ADDR, CORE_ADDR, int)
481 TARGET_DEFAULT_RETURN (1);
9c06b0b4 482 int (*to_remove_mask_watchpoint) (struct target_ops *,
8b1c364c
TT
483 CORE_ADDR, CORE_ADDR, int)
484 TARGET_DEFAULT_RETURN (1);
6b84065d
TT
485 int (*to_stopped_by_watchpoint) (struct target_ops *)
486 TARGET_DEFAULT_RETURN (0);
74174d2e 487 int to_have_steppable_watchpoint;
7df1a324 488 int to_have_continuable_watchpoint;
6b84065d
TT
489 int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *)
490 TARGET_DEFAULT_RETURN (0);
5009afc5 491 int (*to_watchpoint_addr_within_range) (struct target_ops *,
65f160a9
TT
492 CORE_ADDR, CORE_ADDR, int)
493 TARGET_DEFAULT_FUNC (default_watchpoint_addr_within_range);
e09342b5
TJB
494
495 /* Documentation of this routine is provided with the corresponding
496 target_* macro. */
31568a15 497 int (*to_region_ok_for_hw_watchpoint) (struct target_ops *,
d03655e4
TT
498 CORE_ADDR, int)
499 TARGET_DEFAULT_FUNC (default_region_ok_for_hw_watchpoint);
e09342b5 500
c3a5ff89
TT
501 int (*to_can_accel_watchpoint_condition) (struct target_ops *,
502 CORE_ADDR, int, int,
77cdffe9
TT
503 struct expression *)
504 TARGET_DEFAULT_RETURN (0);
9c06b0b4 505 int (*to_masked_watch_num_registers) (struct target_ops *,
6c7e5e5c
TT
506 CORE_ADDR, CORE_ADDR)
507 TARGET_DEFAULT_RETURN (-1);
0343661d
TT
508 void (*to_terminal_init) (struct target_ops *)
509 TARGET_DEFAULT_IGNORE ();
ddeaacc9
TT
510 void (*to_terminal_inferior) (struct target_ops *)
511 TARGET_DEFAULT_IGNORE ();
74fcbef9
TT
512 void (*to_terminal_ours_for_output) (struct target_ops *)
513 TARGET_DEFAULT_IGNORE ();
e4a733f1
TT
514 void (*to_terminal_ours) (struct target_ops *)
515 TARGET_DEFAULT_IGNORE ();
c6ea8f79
TT
516 void (*to_terminal_save_ours) (struct target_ops *)
517 TARGET_DEFAULT_IGNORE ();
e19e919f
TT
518 void (*to_terminal_info) (struct target_ops *, const char *, int)
519 TARGET_DEFAULT_FUNC (default_terminal_info);
423a4807
TT
520 void (*to_kill) (struct target_ops *)
521 TARGET_DEFAULT_NORETURN (noprocess ());
7634da87
TT
522 void (*to_load) (struct target_ops *, char *, int)
523 TARGET_DEFAULT_NORETURN (tcomplain ());
136d6dae
VP
524 void (*to_create_inferior) (struct target_ops *,
525 char *, char *, char **, int);
340ba4bf
TT
526 void (*to_post_startup_inferior) (struct target_ops *, ptid_t)
527 TARGET_DEFAULT_IGNORE ();
5958ebeb
TT
528 int (*to_insert_fork_catchpoint) (struct target_ops *, int)
529 TARGET_DEFAULT_RETURN (1);
e1a21fb7
TT
530 int (*to_remove_fork_catchpoint) (struct target_ops *, int)
531 TARGET_DEFAULT_RETURN (1);
7e18a8dc
TT
532 int (*to_insert_vfork_catchpoint) (struct target_ops *, int)
533 TARGET_DEFAULT_RETURN (1);
95c3375e
TT
534 int (*to_remove_vfork_catchpoint) (struct target_ops *, int)
535 TARGET_DEFAULT_RETURN (1);
098dba18
TT
536 int (*to_follow_fork) (struct target_ops *, int, int)
537 TARGET_DEFAULT_FUNC (default_follow_fork);
62f64d7a
TT
538 int (*to_insert_exec_catchpoint) (struct target_ops *, int)
539 TARGET_DEFAULT_RETURN (1);
cda0f38c
TT
540 int (*to_remove_exec_catchpoint) (struct target_ops *, int)
541 TARGET_DEFAULT_RETURN (1);
ff214e67 542 int (*to_set_syscall_catchpoint) (struct target_ops *,
6a9fa051
TT
543 int, int, int, int, int *)
544 TARGET_DEFAULT_RETURN (1);
0db88c1d
TT
545 int (*to_has_exited) (struct target_ops *, int, int, int *)
546 TARGET_DEFAULT_RETURN (0);
8d657035
TT
547 void (*to_mourn_inferior) (struct target_ops *)
548 TARGET_DEFAULT_FUNC (default_mourn_inferior);
da82bd6b 549 int (*to_can_run) (struct target_ops *);
2455069d
UW
550
551 /* Documentation of this routine is provided with the corresponding
552 target_* macro. */
035cad7f
TT
553 void (*to_pass_signals) (struct target_ops *, int, unsigned char *)
554 TARGET_DEFAULT_IGNORE ();
2455069d 555
9b224c5e
PA
556 /* Documentation of this routine is provided with the
557 corresponding target_* function. */
7d4f8efa
TT
558 void (*to_program_signals) (struct target_ops *, int, unsigned char *)
559 TARGET_DEFAULT_IGNORE ();
9b224c5e 560
cbffc065
TT
561 int (*to_thread_alive) (struct target_ops *, ptid_t ptid)
562 TARGET_DEFAULT_RETURN (0);
09b0dc2b
TT
563 void (*to_find_new_threads) (struct target_ops *)
564 TARGET_DEFAULT_IGNORE ();
770234d3
TT
565 char *(*to_pid_to_str) (struct target_ops *, ptid_t)
566 TARGET_DEFAULT_FUNC (default_pid_to_str);
4a7e6dda
TT
567 char *(*to_extra_thread_info) (struct target_ops *, struct thread_info *)
568 TARGET_DEFAULT_RETURN (0);
825828fc
TT
569 char *(*to_thread_name) (struct target_ops *, struct thread_info *)
570 TARGET_DEFAULT_RETURN (0);
46ee7e8d
TT
571 void (*to_stop) (struct target_ops *, ptid_t)
572 TARGET_DEFAULT_IGNORE ();
1aac633b 573 void (*to_rcmd) (struct target_ops *,
a53f3625
TT
574 char *command, struct ui_file *output)
575 TARGET_DEFAULT_FUNC (default_rcmd);
830ca330
TT
576 char *(*to_pid_to_exec_file) (struct target_ops *, int pid)
577 TARGET_DEFAULT_RETURN (0);
d9cb0195
TT
578 void (*to_log_command) (struct target_ops *, const char *)
579 TARGET_DEFAULT_IGNORE ();
7e35c012
TT
580 struct target_section_table *(*to_get_section_table) (struct target_ops *)
581 TARGET_DEFAULT_RETURN (0);
c5aa993b 582 enum strata to_stratum;
c35b1492
PA
583 int (*to_has_all_memory) (struct target_ops *);
584 int (*to_has_memory) (struct target_ops *);
585 int (*to_has_stack) (struct target_ops *);
586 int (*to_has_registers) (struct target_ops *);
aeaec162 587 int (*to_has_execution) (struct target_ops *, ptid_t);
c5aa993b 588 int to_has_thread_control; /* control thread execution */
dc177b7a 589 int to_attach_no_wait;
6426a772 590 /* ASYNC target controls */
6b84065d
TT
591 int (*to_can_async_p) (struct target_ops *)
592 TARGET_DEFAULT_FUNC (find_default_can_async_p);
593 int (*to_is_async_p) (struct target_ops *)
594 TARGET_DEFAULT_FUNC (find_default_is_async_p);
595 void (*to_async) (struct target_ops *, async_callback_ftype *, void *)
596 TARGET_DEFAULT_NORETURN (tcomplain ());
2a9a2795 597 int (*to_supports_non_stop) (struct target_ops *);
6b04bdb7 598 /* find_memory_regions support method for gcore */
2e73927c 599 int (*to_find_memory_regions) (struct target_ops *,
0b5a2719
TT
600 find_memory_region_ftype func, void *data)
601 TARGET_DEFAULT_FUNC (dummy_find_memory_regions);
6b04bdb7 602 /* make_corefile_notes support method for gcore */
16f796b1
TT
603 char * (*to_make_corefile_notes) (struct target_ops *, bfd *, int *)
604 TARGET_DEFAULT_FUNC (dummy_make_corefile_notes);
6b04bdb7 605 /* get_bookmark support method for bookmarks */
3dbafbbb
TT
606 gdb_byte * (*to_get_bookmark) (struct target_ops *, char *, int)
607 TARGET_DEFAULT_NORETURN (tcomplain ());
6b04bdb7 608 /* goto_bookmark support method for bookmarks */
9bb9d61d
TT
609 void (*to_goto_bookmark) (struct target_ops *, gdb_byte *, int)
610 TARGET_DEFAULT_NORETURN (tcomplain ());
3f47be5c
EZ
611 /* Return the thread-local address at OFFSET in the
612 thread-local storage for the thread PTID and the shared library
613 or executable file given by OBJFILE. If that block of
614 thread-local storage hasn't been allocated yet, this function
615 may return an error. */
117de6a9
PA
616 CORE_ADDR (*to_get_thread_local_address) (struct target_ops *ops,
617 ptid_t ptid,
b2756930 618 CORE_ADDR load_module_addr,
3f47be5c
EZ
619 CORE_ADDR offset);
620
13547ab6
DJ
621 /* Request that OPS transfer up to LEN 8-bit bytes of the target's
622 OBJECT. The OFFSET, for a seekable object, specifies the
623 starting point. The ANNEX can be used to provide additional
624 data-specific information to the target.
625
9b409511
YQ
626 Return the transferred status, error or OK (an
627 'enum target_xfer_status' value). Save the number of bytes
628 actually transferred in *XFERED_LEN if transfer is successful
629 (TARGET_XFER_OK) or the number unavailable bytes if the requested
630 data is unavailable (TARGET_XFER_E_UNAVAILABLE). *XFERED_LEN
631 smaller than LEN does not indicate the end of the object, only
632 the end of the transfer; higher level code should continue
633 transferring if desired. This is handled in target.c.
13547ab6
DJ
634
635 The interface does not support a "retry" mechanism. Instead it
636 assumes that at least one byte will be transfered on each
637 successful call.
638
639 NOTE: cagney/2003-10-17: The current interface can lead to
640 fragmented transfers. Lower target levels should not implement
641 hacks, such as enlarging the transfer, in an attempt to
642 compensate for this. Instead, the target stack should be
643 extended so that it implements supply/collect methods and a
644 look-aside object cache. With that available, the lowest
645 target can safely and freely "push" data up the stack.
646
647 See target_read and target_write for more information. One,
648 and only one, of readbuf or writebuf must be non-NULL. */
649
9b409511
YQ
650 enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
651 enum target_object object,
652 const char *annex,
653 gdb_byte *readbuf,
654 const gdb_byte *writebuf,
655 ULONGEST offset, ULONGEST len,
6b84065d
TT
656 ULONGEST *xfered_len)
657 TARGET_DEFAULT_RETURN (TARGET_XFER_E_IO);
1e3ff5ad 658
fd79ecee
DJ
659 /* Returns the memory map for the target. A return value of NULL
660 means that no memory map is available. If a memory address
661 does not fall within any returned regions, it's assumed to be
662 RAM. The returned memory regions should not overlap.
663
664 The order of regions does not matter; target_memory_map will
c378eb4e 665 sort regions by starting address. For that reason, this
fd79ecee
DJ
666 function should not be called directly except via
667 target_memory_map.
668
669 This method should not cache data; if the memory map could
670 change unexpectedly, it should be invalidated, and higher
671 layers will re-fetch it. */
672 VEC(mem_region_s) *(*to_memory_map) (struct target_ops *);
673
a76d924d
DJ
674 /* Erases the region of flash memory starting at ADDRESS, of
675 length LENGTH.
676
677 Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned
678 on flash block boundaries, as reported by 'to_memory_map'. */
679 void (*to_flash_erase) (struct target_ops *,
e8a6c6ac
TT
680 ULONGEST address, LONGEST length)
681 TARGET_DEFAULT_NORETURN (tcomplain ());
a76d924d
DJ
682
683 /* Finishes a flash memory write sequence. After this operation
684 all flash memory should be available for writing and the result
685 of reading from areas written by 'to_flash_write' should be
686 equal to what was written. */
f6fb2925
TT
687 void (*to_flash_done) (struct target_ops *)
688 TARGET_DEFAULT_NORETURN (tcomplain ());
a76d924d 689
424163ea
DJ
690 /* Describe the architecture-specific features of this target.
691 Returns the description found, or NULL if no description
692 was available. */
693 const struct target_desc *(*to_read_description) (struct target_ops *ops);
694
0ef643c8
JB
695 /* Build the PTID of the thread on which a given task is running,
696 based on LWP and THREAD. These values are extracted from the
697 task Private_Data section of the Ada Task Control Block, and
698 their interpretation depends on the target. */
1e6b91a4 699 ptid_t (*to_get_ada_task_ptid) (struct target_ops *,
4229b31d
TT
700 long lwp, long thread)
701 TARGET_DEFAULT_FUNC (default_get_ada_task_ptid);
0ef643c8 702
c47ffbe3
VP
703 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
704 Return 0 if *READPTR is already at the end of the buffer.
705 Return -1 if there is insufficient buffer for a whole entry.
706 Return 1 if an entry was read into *TYPEP and *VALP. */
707 int (*to_auxv_parse) (struct target_ops *ops, gdb_byte **readptr,
708 gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
709
08388c79
DE
710 /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
711 sequence of bytes in PATTERN with length PATTERN_LEN.
712
713 The result is 1 if found, 0 if not found, and -1 if there was an error
714 requiring halting of the search (e.g. memory read error).
715 If the pattern is found the address is recorded in FOUND_ADDRP. */
716 int (*to_search_memory) (struct target_ops *ops,
717 CORE_ADDR start_addr, ULONGEST search_space_len,
718 const gdb_byte *pattern, ULONGEST pattern_len,
719 CORE_ADDR *found_addrp);
720
b2175913 721 /* Can target execute in reverse? */
53e1cfc7
TT
722 int (*to_can_execute_reverse) (struct target_ops *)
723 TARGET_DEFAULT_RETURN (0);
b2175913 724
32231432
PA
725 /* The direction the target is currently executing. Must be
726 implemented on targets that support reverse execution and async
727 mode. The default simply returns forward execution. */
fe31bf5b
TT
728 enum exec_direction_kind (*to_execution_direction) (struct target_ops *)
729 TARGET_DEFAULT_FUNC (default_execution_direction);
32231432 730
8a305172
PA
731 /* Does this target support debugging multiple processes
732 simultaneously? */
a7304748
TT
733 int (*to_supports_multi_process) (struct target_ops *)
734 TARGET_DEFAULT_RETURN (0);
8a305172 735
d248b706
KY
736 /* Does this target support enabling and disabling tracepoints while a trace
737 experiment is running? */
aab1b22d
TT
738 int (*to_supports_enable_disable_tracepoint) (struct target_ops *)
739 TARGET_DEFAULT_RETURN (0);
d248b706 740
03583c20 741 /* Does this target support disabling address space randomization? */
2bfc0540 742 int (*to_supports_disable_randomization) (struct target_ops *);
03583c20 743
3065dfb6 744 /* Does this target support the tracenz bytecode for string collection? */
9409d39e
TT
745 int (*to_supports_string_tracing) (struct target_ops *)
746 TARGET_DEFAULT_RETURN (0);
3065dfb6 747
b775012e
LM
748 /* Does this target support evaluation of breakpoint conditions on its
749 end? */
ccfde2a0
TT
750 int (*to_supports_evaluation_of_breakpoint_conditions) (struct target_ops *)
751 TARGET_DEFAULT_RETURN (0);
b775012e 752
d3ce09f5
SS
753 /* Does this target support evaluation of breakpoint commands on its
754 end? */
843f59ed
TT
755 int (*to_can_run_breakpoint_commands) (struct target_ops *)
756 TARGET_DEFAULT_RETURN (0);
d3ce09f5 757
3a8f7b07
JK
758 /* Determine current architecture of thread PTID.
759
760 The target is supposed to determine the architecture of the code where
761 the target is currently stopped at (on Cell, if a target is in spu_run,
762 to_thread_architecture would return SPU, otherwise PPC32 or PPC64).
763 This is architecture used to perform decr_pc_after_break adjustment,
764 and also determines the frame architecture of the innermost frame.
f5656ead 765 ptrace operations need to operate according to target_gdbarch ().
3a8f7b07 766
f5656ead 767 The default implementation always returns target_gdbarch (). */
43eba180
TT
768 struct gdbarch *(*to_thread_architecture) (struct target_ops *, ptid_t)
769 TARGET_DEFAULT_FUNC (default_thread_architecture);
c2250ad1 770
c0694254
PA
771 /* Determine current address space of thread PTID.
772
773 The default implementation always returns the inferior's
774 address space. */
775 struct address_space *(*to_thread_address_space) (struct target_ops *,
776 ptid_t);
777
7313baad
UW
778 /* Target file operations. */
779
780 /* Open FILENAME on the target, using FLAGS and MODE. Return a
781 target file descriptor, or -1 if an error occurs (and set
782 *TARGET_ERRNO). */
cd897586
TT
783 int (*to_fileio_open) (struct target_ops *,
784 const char *filename, int flags, int mode,
7313baad
UW
785 int *target_errno);
786
787 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
788 Return the number of bytes written, or -1 if an error occurs
789 (and set *TARGET_ERRNO). */
0d866f62
TT
790 int (*to_fileio_pwrite) (struct target_ops *,
791 int fd, const gdb_byte *write_buf, int len,
7313baad
UW
792 ULONGEST offset, int *target_errno);
793
794 /* Read up to LEN bytes FD on the target into READ_BUF.
795 Return the number of bytes read, or -1 if an error occurs
796 (and set *TARGET_ERRNO). */
a3be983c
TT
797 int (*to_fileio_pread) (struct target_ops *,
798 int fd, gdb_byte *read_buf, int len,
7313baad
UW
799 ULONGEST offset, int *target_errno);
800
801 /* Close FD on the target. Return 0, or -1 if an error occurs
802 (and set *TARGET_ERRNO). */
df39ea25 803 int (*to_fileio_close) (struct target_ops *, int fd, int *target_errno);
7313baad
UW
804
805 /* Unlink FILENAME on the target. Return 0, or -1 if an error
806 occurs (and set *TARGET_ERRNO). */
dbbca37d
TT
807 int (*to_fileio_unlink) (struct target_ops *,
808 const char *filename, int *target_errno);
7313baad 809
b9e7b9c3
UW
810 /* Read value of symbolic link FILENAME on the target. Return a
811 null-terminated string allocated via xmalloc, or NULL if an error
812 occurs (and set *TARGET_ERRNO). */
fab5aa7c
TT
813 char *(*to_fileio_readlink) (struct target_ops *,
814 const char *filename, int *target_errno);
b9e7b9c3 815
7313baad 816
145b16a9
UW
817 /* Implement the "info proc" command. */
818 void (*to_info_proc) (struct target_ops *, char *, enum info_proc_what);
819
35b1e5cc
SS
820 /* Tracepoint-related operations. */
821
822 /* Prepare the target for a tracing run. */
5536135b
TT
823 void (*to_trace_init) (struct target_ops *)
824 TARGET_DEFAULT_NORETURN (tcomplain ());
35b1e5cc 825
e8ba3115 826 /* Send full details of a tracepoint location to the target. */
548f7808 827 void (*to_download_tracepoint) (struct target_ops *,
9a980a22
TT
828 struct bp_location *location)
829 TARGET_DEFAULT_NORETURN (tcomplain ());
35b1e5cc 830
1e4d1764
YQ
831 /* Is the target able to download tracepoint locations in current
832 state? */
719acc4a
TT
833 int (*to_can_download_tracepoint) (struct target_ops *)
834 TARGET_DEFAULT_RETURN (0);
1e4d1764 835
35b1e5cc 836 /* Send full details of a trace state variable to the target. */
559d2b81 837 void (*to_download_trace_state_variable) (struct target_ops *,
94eb98b9
TT
838 struct trace_state_variable *tsv)
839 TARGET_DEFAULT_NORETURN (tcomplain ());
35b1e5cc 840
d248b706 841 /* Enable a tracepoint on the target. */
46670d57 842 void (*to_enable_tracepoint) (struct target_ops *,
151f70f1
TT
843 struct bp_location *location)
844 TARGET_DEFAULT_NORETURN (tcomplain ());
d248b706
KY
845
846 /* Disable a tracepoint on the target. */
780b049c 847 void (*to_disable_tracepoint) (struct target_ops *,
05c41993
TT
848 struct bp_location *location)
849 TARGET_DEFAULT_NORETURN (tcomplain ());
d248b706 850
35b1e5cc
SS
851 /* Inform the target info of memory regions that are readonly
852 (such as text sections), and so it should return data from
853 those rather than look in the trace buffer. */
86dd181d
TT
854 void (*to_trace_set_readonly_regions) (struct target_ops *)
855 TARGET_DEFAULT_NORETURN (tcomplain ());
35b1e5cc
SS
856
857 /* Start a trace run. */
25da2e80
TT
858 void (*to_trace_start) (struct target_ops *)
859 TARGET_DEFAULT_NORETURN (tcomplain ());
35b1e5cc
SS
860
861 /* Get the current status of a tracing run. */
4072d4ff
TT
862 int (*to_get_trace_status) (struct target_ops *, struct trace_status *ts)
863 TARGET_DEFAULT_RETURN (-1);
35b1e5cc 864
db90e85c
TT
865 void (*to_get_tracepoint_status) (struct target_ops *,
866 struct breakpoint *tp,
6fea14cd
TT
867 struct uploaded_tp *utp)
868 TARGET_DEFAULT_NORETURN (tcomplain ());
f196051f 869
35b1e5cc 870 /* Stop a trace run. */
e51c07ea
TT
871 void (*to_trace_stop) (struct target_ops *)
872 TARGET_DEFAULT_NORETURN (tcomplain ());
35b1e5cc
SS
873
874 /* Ask the target to find a trace frame of the given type TYPE,
875 using NUM, ADDR1, and ADDR2 as search parameters. Returns the
876 number of the trace frame, and also the tracepoint number at
c378eb4e 877 TPP. If no trace frame matches, return -1. May throw if the
f197e0f1 878 operation fails. */
bd4c6793
TT
879 int (*to_trace_find) (struct target_ops *,
880 enum trace_find_type type, int num,
afc94e66
TT
881 CORE_ADDR addr1, CORE_ADDR addr2, int *tpp)
882 TARGET_DEFAULT_RETURN (-1);
35b1e5cc
SS
883
884 /* Get the value of the trace state variable number TSV, returning
885 1 if the value is known and writing the value itself into the
886 location pointed to by VAL, else returning 0. */
4011015b 887 int (*to_get_trace_state_variable_value) (struct target_ops *,
959bcd0b
TT
888 int tsv, LONGEST *val)
889 TARGET_DEFAULT_RETURN (0);
35b1e5cc 890
a2e6c147
TT
891 int (*to_save_trace_data) (struct target_ops *, const char *filename)
892 TARGET_DEFAULT_NORETURN (tcomplain ());
00bf0b85 893
ab6617cc 894 int (*to_upload_tracepoints) (struct target_ops *,
1e949b00
TT
895 struct uploaded_tp **utpp)
896 TARGET_DEFAULT_RETURN (0);
00bf0b85 897
181e3713 898 int (*to_upload_trace_state_variables) (struct target_ops *,
08120467
TT
899 struct uploaded_tsv **utsvp)
900 TARGET_DEFAULT_RETURN (0);
00bf0b85 901
88ee6f45 902 LONGEST (*to_get_raw_trace_data) (struct target_ops *, gdb_byte *buf,
ace92e7d
TT
903 ULONGEST offset, LONGEST len)
904 TARGET_DEFAULT_NORETURN (tcomplain ());
00bf0b85 905
405f8e94
SS
906 /* Get the minimum length of instruction on which a fast tracepoint
907 may be set on the target. If this operation is unsupported,
908 return -1. If for some reason the minimum length cannot be
909 determined, return 0. */
9249843f
TT
910 int (*to_get_min_fast_tracepoint_insn_len) (struct target_ops *)
911 TARGET_DEFAULT_RETURN (-1);
405f8e94 912
35b1e5cc
SS
913 /* Set the target's tracing behavior in response to unexpected
914 disconnection - set VAL to 1 to keep tracing, 0 to stop. */
0bcfeddf
TT
915 void (*to_set_disconnected_tracing) (struct target_ops *, int val)
916 TARGET_DEFAULT_IGNORE ();
8d526939
TT
917 void (*to_set_circular_trace_buffer) (struct target_ops *, int val)
918 TARGET_DEFAULT_IGNORE ();
f6f899bf 919 /* Set the size of trace buffer in the target. */
91df8d1d
TT
920 void (*to_set_trace_buffer_size) (struct target_ops *, LONGEST val)
921 TARGET_DEFAULT_IGNORE ();
35b1e5cc 922
f196051f
SS
923 /* Add/change textual notes about the trace run, returning 1 if
924 successful, 0 otherwise. */
d9e68a2c
TT
925 int (*to_set_trace_notes) (struct target_ops *,
926 const char *user, const char *notes,
8586ccaa
TT
927 const char *stopnotes)
928 TARGET_DEFAULT_RETURN (0);
f196051f 929
dc146f7c
VP
930 /* Return the processor core that thread PTID was last seen on.
931 This information is updated only when:
932 - update_thread_list is called
933 - thread stops
3e43a32a
MS
934 If the core cannot be determined -- either for the specified
935 thread, or right now, or in this debug session, or for this
936 target -- return -1. */
9e538d0d
TT
937 int (*to_core_of_thread) (struct target_ops *, ptid_t ptid)
938 TARGET_DEFAULT_RETURN (-1);
dc146f7c 939
4a5e7a5b
PA
940 /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range
941 matches the contents of [DATA,DATA+SIZE). Returns 1 if there's
942 a match, 0 if there's a mismatch, and -1 if an error is
943 encountered while reading memory. */
944 int (*to_verify_memory) (struct target_ops *, const gdb_byte *data,
eb276a6b
TT
945 CORE_ADDR memaddr, ULONGEST size)
946 TARGET_DEFAULT_NORETURN (tcomplain ());
4a5e7a5b 947
711e434b
PM
948 /* Return the address of the start of the Thread Information Block
949 a Windows OS specific feature. */
bd7ae0f5 950 int (*to_get_tib_address) (struct target_ops *,
22bcceee
TT
951 ptid_t ptid, CORE_ADDR *addr)
952 TARGET_DEFAULT_NORETURN (tcomplain ());
711e434b 953
d914c394 954 /* Send the new settings of write permission variables. */
dcd6917f
TT
955 void (*to_set_permissions) (struct target_ops *)
956 TARGET_DEFAULT_IGNORE ();
d914c394 957
0fb4aa4b
PA
958 /* Look for a static tracepoint marker at ADDR, and fill in MARKER
959 with its details. Return 1 on success, 0 on failure. */
61fc905d 960 int (*to_static_tracepoint_marker_at) (struct target_ops *, CORE_ADDR,
4c3e4425
TT
961 struct static_tracepoint_marker *marker)
962 TARGET_DEFAULT_RETURN (0);
0fb4aa4b
PA
963
964 /* Return a vector of all tracepoints markers string id ID, or all
965 markers if ID is NULL. */
d6522a22
TT
966 VEC(static_tracepoint_marker_p) *(*to_static_tracepoint_markers_by_strid) (struct target_ops *, const char *id)
967 TARGET_DEFAULT_NORETURN (tcomplain ());
0fb4aa4b 968
b3b9301e 969 /* Return a traceframe info object describing the current
1527aea8
YQ
970 traceframe's contents. If the target doesn't support
971 traceframe info, return NULL. If the current traceframe is not
972 selected (the current traceframe number is -1), the target can
973 choose to return either NULL or an empty traceframe info. If
974 NULL is returned, for example in remote target, GDB will read
975 from the live inferior. If an empty traceframe info is
976 returned, for example in tfile target, which means the
977 traceframe info is available, but the requested memory is not
978 available in it. GDB will try to see if the requested memory
979 is available in the read-only sections. This method should not
980 cache data; higher layers take care of caching, invalidating,
981 and re-fetching when necessary. */
92155eeb
TT
982 struct traceframe_info *(*to_traceframe_info) (struct target_ops *)
983 TARGET_DEFAULT_RETURN (0);
b3b9301e 984
d1feda86
YQ
985 /* Ask the target to use or not to use agent according to USE. Return 1
986 successful, 0 otherwise. */
d9db5b21
TT
987 int (*to_use_agent) (struct target_ops *, int use)
988 TARGET_DEFAULT_NORETURN (tcomplain ());
d1feda86
YQ
989
990 /* Is the target able to use agent in current state? */
9a7d8b48
TT
991 int (*to_can_use_agent) (struct target_ops *)
992 TARGET_DEFAULT_RETURN (0);
d1feda86 993
02d27625 994 /* Check whether the target supports branch tracing. */
46917d26
TT
995 int (*to_supports_btrace) (struct target_ops *)
996 TARGET_DEFAULT_RETURN (0);
02d27625
MM
997
998 /* Enable branch tracing for PTID and allocate a branch trace target
999 information struct for reading and for disabling branch trace. */
e3c49f88
TT
1000 struct btrace_target_info *(*to_enable_btrace) (struct target_ops *,
1001 ptid_t ptid);
02d27625
MM
1002
1003 /* Disable branch tracing and deallocate TINFO. */
25e95349
TT
1004 void (*to_disable_btrace) (struct target_ops *,
1005 struct btrace_target_info *tinfo);
02d27625
MM
1006
1007 /* Disable branch tracing and deallocate TINFO. This function is similar
1008 to to_disable_btrace, except that it is called during teardown and is
1009 only allowed to perform actions that are safe. A counter-example would
1010 be attempting to talk to a remote target. */
1777056d
TT
1011 void (*to_teardown_btrace) (struct target_ops *,
1012 struct btrace_target_info *tinfo);
02d27625 1013
969c39fb
MM
1014 /* Read branch trace data for the thread indicated by BTINFO into DATA.
1015 DATA is cleared before new trace is added.
1016 The branch trace will start with the most recent block and continue
1017 towards older blocks. */
39c49f83
TT
1018 enum btrace_error (*to_read_btrace) (struct target_ops *self,
1019 VEC (btrace_block_s) **data,
969c39fb
MM
1020 struct btrace_target_info *btinfo,
1021 enum btrace_read_type type);
02d27625 1022
7c1687a9 1023 /* Stop trace recording. */
c6cd7c02 1024 void (*to_stop_recording) (struct target_ops *);
7c1687a9 1025
d02ed0bb 1026 /* Print information about the recording. */
630d6a4a 1027 void (*to_info_record) (struct target_ops *);
d02ed0bb
MM
1028
1029 /* Save the recorded execution trace into a file. */
f09e2107
TT
1030 void (*to_save_record) (struct target_ops *, const char *filename)
1031 TARGET_DEFAULT_NORETURN (tcomplain ());
d02ed0bb
MM
1032
1033 /* Delete the recorded execution trace from the current position onwards. */
07366925
TT
1034 void (*to_delete_record) (struct target_ops *)
1035 TARGET_DEFAULT_NORETURN (tcomplain ());
d02ed0bb
MM
1036
1037 /* Query if the record target is currently replaying. */
dd2e9d25
TT
1038 int (*to_record_is_replaying) (struct target_ops *)
1039 TARGET_DEFAULT_RETURN (0);
d02ed0bb
MM
1040
1041 /* Go to the begin of the execution trace. */
671e76cc
TT
1042 void (*to_goto_record_begin) (struct target_ops *)
1043 TARGET_DEFAULT_NORETURN (tcomplain ());
d02ed0bb
MM
1044
1045 /* Go to the end of the execution trace. */
e9179bb3
TT
1046 void (*to_goto_record_end) (struct target_ops *)
1047 TARGET_DEFAULT_NORETURN (tcomplain ());
d02ed0bb
MM
1048
1049 /* Go to a specific location in the recorded execution trace. */
05969c84
TT
1050 void (*to_goto_record) (struct target_ops *, ULONGEST insn)
1051 TARGET_DEFAULT_NORETURN (tcomplain ());
d02ed0bb 1052
67c86d06
MM
1053 /* Disassemble SIZE instructions in the recorded execution trace from
1054 the current position.
1055 If SIZE < 0, disassemble abs (SIZE) preceding instructions; otherwise,
1056 disassemble SIZE succeeding instructions. */
3679abfa
TT
1057 void (*to_insn_history) (struct target_ops *, int size, int flags)
1058 TARGET_DEFAULT_NORETURN (tcomplain ());
67c86d06
MM
1059
1060 /* Disassemble SIZE instructions in the recorded execution trace around
1061 FROM.
1062 If SIZE < 0, disassemble abs (SIZE) instructions before FROM; otherwise,
1063 disassemble SIZE instructions after FROM. */
9abc3ff3 1064 void (*to_insn_history_from) (struct target_ops *,
8444ab58
TT
1065 ULONGEST from, int size, int flags)
1066 TARGET_DEFAULT_NORETURN (tcomplain ());
67c86d06
MM
1067
1068 /* Disassemble a section of the recorded execution trace from instruction
0688d04e 1069 BEGIN (inclusive) to instruction END (inclusive). */
4e99c6b7 1070 void (*to_insn_history_range) (struct target_ops *,
c29302cc
TT
1071 ULONGEST begin, ULONGEST end, int flags)
1072 TARGET_DEFAULT_NORETURN (tcomplain ());
67c86d06 1073
15984c13
MM
1074 /* Print a function trace of the recorded execution trace.
1075 If SIZE < 0, print abs (SIZE) preceding functions; otherwise, print SIZE
1076 succeeding functions. */
170049d4
TT
1077 void (*to_call_history) (struct target_ops *, int size, int flags)
1078 TARGET_DEFAULT_NORETURN (tcomplain ());
15984c13
MM
1079
1080 /* Print a function trace of the recorded execution trace starting
1081 at function FROM.
1082 If SIZE < 0, print abs (SIZE) functions before FROM; otherwise, print
1083 SIZE functions after FROM. */
ec0aea04 1084 void (*to_call_history_from) (struct target_ops *,
16fc27d6
TT
1085 ULONGEST begin, int size, int flags)
1086 TARGET_DEFAULT_NORETURN (tcomplain ());
15984c13
MM
1087
1088 /* Print a function trace of an execution trace section from function BEGIN
0688d04e 1089 (inclusive) to function END (inclusive). */
f0d960ea 1090 void (*to_call_history_range) (struct target_ops *,
115d9817
TT
1091 ULONGEST begin, ULONGEST end, int flags)
1092 TARGET_DEFAULT_NORETURN (tcomplain ());
15984c13 1093
ced63ec0
GB
1094 /* Nonzero if TARGET_OBJECT_LIBRARIES_SVR4 may be read with a
1095 non-empty annex. */
0de91722
TT
1096 int (*to_augmented_libraries_svr4_read) (struct target_ops *)
1097 TARGET_DEFAULT_RETURN (0);
ced63ec0 1098
ea001bdc
MM
1099 /* Those unwinders are tried before any other arch unwinders. Use NULL if
1100 it is not used. */
1101 const struct frame_unwind *to_get_unwinder;
1102 const struct frame_unwind *to_get_tailcall_unwinder;
1103
118e6252
MM
1104 /* Return the number of bytes by which the PC needs to be decremented
1105 after executing a breakpoint instruction.
1106 Defaults to gdbarch_decr_pc_after_break (GDBARCH). */
1107 CORE_ADDR (*to_decr_pc_after_break) (struct target_ops *ops,
1108 struct gdbarch *gdbarch);
1109
c5aa993b 1110 int to_magic;
0d06e24b
JM
1111 /* Need sub-structure for target machine related rather than comm related?
1112 */
c5aa993b 1113 };
c906108c
SS
1114
1115/* Magic number for checking ops size. If a struct doesn't end with this
1116 number, somebody changed the declaration but didn't change all the
1117 places that initialize one. */
1118
1119#define OPS_MAGIC 3840
1120
1121/* The ops structure for our "current" target process. This should
1122 never be NULL. If there is no target, it points to the dummy_target. */
1123
c5aa993b 1124extern struct target_ops current_target;
c906108c 1125
c906108c
SS
1126/* Define easy words for doing these operations on our current target. */
1127
1128#define target_shortname (current_target.to_shortname)
1129#define target_longname (current_target.to_longname)
1130
f1c07ab0 1131/* Does whatever cleanup is required for a target that we are no
460014f5
JK
1132 longer going to be calling. This routine is automatically always
1133 called after popping the target off the target stack - the target's
1134 own methods are no longer available through the target vector.
1135 Closing file descriptors and freeing all memory allocated memory are
1136 typical things it should do. */
f1c07ab0 1137
460014f5 1138void target_close (struct target_ops *targ);
c906108c
SS
1139
1140/* Attaches to a process on the target side. Arguments are as passed
1141 to the `attach' command by the user. This routine can be called
1142 when the target is not on the target-stack, if the target_can_run
2146d243 1143 routine returns 1; in that case, it must push itself onto the stack.
c906108c 1144 Upon exit, the target should be ready for normal operations, and
2146d243 1145 should be ready to deliver the status of the process immediately
c906108c
SS
1146 (without waiting) to an upcoming target_wait call. */
1147
136d6dae 1148void target_attach (char *, int);
c906108c 1149
dc177b7a
PA
1150/* Some targets don't generate traps when attaching to the inferior,
1151 or their target_attach implementation takes care of the waiting.
1152 These targets must set to_attach_no_wait. */
1153
1154#define target_attach_no_wait \
1155 (current_target.to_attach_no_wait)
1156
c906108c
SS
1157/* The target_attach operation places a process under debugger control,
1158 and stops the process.
1159
1160 This operation provides a target-specific hook that allows the
0d06e24b 1161 necessary bookkeeping to be performed after an attach completes. */
c906108c 1162#define target_post_attach(pid) \
f045800c 1163 (*current_target.to_post_attach) (&current_target, pid)
c906108c 1164
c906108c
SS
1165/* Takes a program previously attached to and detaches it.
1166 The program may resume execution (some targets do, some don't) and will
1167 no longer stop on signals, etc. We better not have left any breakpoints
1168 in the program or it'll die when it hits one. ARGS is arguments
1169 typed by the user (e.g. a signal to send the process). FROM_TTY
1170 says whether to be verbose or not. */
1171
52554a0e 1172extern void target_detach (const char *, int);
c906108c 1173
6ad8ae5c
DJ
1174/* Disconnect from the current target without resuming it (leaving it
1175 waiting for a debugger). */
1176
1177extern void target_disconnect (char *, int);
1178
e5ef252a
PA
1179/* Resume execution of the target process PTID (or a group of
1180 threads). STEP says whether to single-step or to run free; SIGGNAL
1181 is the signal to be given to the target, or GDB_SIGNAL_0 for no
1182 signal. The caller may not pass GDB_SIGNAL_DEFAULT. A specific
1183 PTID means `step/resume only this process id'. A wildcard PTID
1184 (all threads, or all threads of process) means `step/resume
1185 INFERIOR_PTID, and let other threads (for which the wildcard PTID
1186 matches) resume with their 'thread->suspend.stop_signal' signal
1187 (usually GDB_SIGNAL_0) if it is in "pass" state, or with no signal
1188 if in "no pass" state. */
c906108c 1189
2ea28649 1190extern void target_resume (ptid_t ptid, int step, enum gdb_signal signal);
c906108c 1191
b5a2688f
AC
1192/* Wait for process pid to do something. PTID = -1 to wait for any
1193 pid to do something. Return pid of child, or -1 in case of error;
c906108c 1194 store status through argument pointer STATUS. Note that it is
b5a2688f 1195 _NOT_ OK to throw_exception() out of target_wait() without popping
c906108c
SS
1196 the debugging target from the stack; GDB isn't prepared to get back
1197 to the prompt with a debugging target but without the frame cache,
47608cb1
PA
1198 stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W*
1199 options. */
c906108c 1200
47608cb1
PA
1201extern ptid_t target_wait (ptid_t ptid, struct target_waitstatus *status,
1202 int options);
c906108c 1203
17dee195 1204/* Fetch at least register REGNO, or all regs if regno == -1. No result. */
c906108c 1205
28439f5e 1206extern void target_fetch_registers (struct regcache *regcache, int regno);
c906108c
SS
1207
1208/* Store at least register REGNO, or all regs if REGNO == -1.
1209 It can store as many registers as it wants to, so target_prepare_to_store
1210 must have been previously called. Calls error() if there are problems. */
1211
28439f5e 1212extern void target_store_registers (struct regcache *regcache, int regs);
c906108c
SS
1213
1214/* Get ready to modify the registers array. On machines which store
1215 individual registers, this doesn't need to do anything. On machines
1216 which store all the registers in one fell swoop, this makes sure
1217 that REGISTERS contains all the registers from the program being
1218 debugged. */
1219
316f2060 1220#define target_prepare_to_store(regcache) \
f32dbf8c 1221 (*current_target.to_prepare_to_store) (&current_target, regcache)
c906108c 1222
6c95b8df
PA
1223/* Determine current address space of thread PTID. */
1224
1225struct address_space *target_thread_address_space (ptid_t);
1226
451b7c33
TT
1227/* Implement the "info proc" command. This returns one if the request
1228 was handled, and zero otherwise. It can also throw an exception if
1229 an error was encountered while attempting to handle the
1230 request. */
145b16a9 1231
451b7c33 1232int target_info_proc (char *, enum info_proc_what);
145b16a9 1233
8a305172
PA
1234/* Returns true if this target can debug multiple processes
1235 simultaneously. */
1236
1237#define target_supports_multi_process() \
86ce2668 1238 (*current_target.to_supports_multi_process) (&current_target)
8a305172 1239
03583c20
UW
1240/* Returns true if this target can disable address space randomization. */
1241
1242int target_supports_disable_randomization (void);
1243
d248b706
KY
1244/* Returns true if this target can enable and disable tracepoints
1245 while a trace experiment is running. */
1246
1247#define target_supports_enable_disable_tracepoint() \
7d178d6a 1248 (*current_target.to_supports_enable_disable_tracepoint) (&current_target)
d248b706 1249
3065dfb6 1250#define target_supports_string_tracing() \
6de37a3a 1251 (*current_target.to_supports_string_tracing) (&current_target)
3065dfb6 1252
b775012e
LM
1253/* Returns true if this target can handle breakpoint conditions
1254 on its end. */
1255
1256#define target_supports_evaluation_of_breakpoint_conditions() \
efcc2da7 1257 (*current_target.to_supports_evaluation_of_breakpoint_conditions) (&current_target)
b775012e 1258
d3ce09f5
SS
1259/* Returns true if this target can handle breakpoint commands
1260 on its end. */
1261
1262#define target_can_run_breakpoint_commands() \
78eff0ec 1263 (*current_target.to_can_run_breakpoint_commands) (&current_target)
d3ce09f5 1264
a14ed312 1265extern int target_read_string (CORE_ADDR, char **, int, int *);
c906108c 1266
5299c1c4 1267extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr,
1b162304 1268 ssize_t len);
c906108c 1269
aee4bf85
PA
1270extern int target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr,
1271 ssize_t len);
1272
45aa4659 1273extern int target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
4e5d721f 1274
29453a14
YQ
1275extern int target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
1276
fc1a4b47 1277extern int target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
45aa4659 1278 ssize_t len);
c906108c 1279
f0ba3972 1280extern int target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
45aa4659 1281 ssize_t len);
f0ba3972 1282
fd79ecee
DJ
1283/* Fetches the target's memory map. If one is found it is sorted
1284 and returned, after some consistency checking. Otherwise, NULL
1285 is returned. */
1286VEC(mem_region_s) *target_memory_map (void);
1287
a76d924d
DJ
1288/* Erase the specified flash region. */
1289void target_flash_erase (ULONGEST address, LONGEST length);
1290
1291/* Finish a sequence of flash operations. */
1292void target_flash_done (void);
1293
1294/* Describes a request for a memory write operation. */
1295struct memory_write_request
1296 {
c378eb4e 1297 /* Begining address that must be written. */
a76d924d 1298 ULONGEST begin;
c378eb4e 1299 /* Past-the-end address. */
a76d924d 1300 ULONGEST end;
c378eb4e 1301 /* The data to write. */
a76d924d
DJ
1302 gdb_byte *data;
1303 /* A callback baton for progress reporting for this request. */
1304 void *baton;
1305 };
1306typedef struct memory_write_request memory_write_request_s;
1307DEF_VEC_O(memory_write_request_s);
1308
1309/* Enumeration specifying different flash preservation behaviour. */
1310enum flash_preserve_mode
1311 {
1312 flash_preserve,
1313 flash_discard
1314 };
1315
1316/* Write several memory blocks at once. This version can be more
1317 efficient than making several calls to target_write_memory, in
1318 particular because it can optimize accesses to flash memory.
1319
1320 Moreover, this is currently the only memory access function in gdb
1321 that supports writing to flash memory, and it should be used for
1322 all cases where access to flash memory is desirable.
1323
1324 REQUESTS is the vector (see vec.h) of memory_write_request.
1325 PRESERVE_FLASH_P indicates what to do with blocks which must be
1326 erased, but not completely rewritten.
1327 PROGRESS_CB is a function that will be periodically called to provide
1328 feedback to user. It will be called with the baton corresponding
1329 to the request currently being written. It may also be called
1330 with a NULL baton, when preserved flash sectors are being rewritten.
1331
1332 The function returns 0 on success, and error otherwise. */
1333int target_write_memory_blocks (VEC(memory_write_request_s) *requests,
1334 enum flash_preserve_mode preserve_flash_p,
1335 void (*progress_cb) (ULONGEST, void *));
1336
c906108c
SS
1337/* Print a line about the current target. */
1338
1339#define target_files_info() \
0d06e24b 1340 (*current_target.to_files_info) (&current_target)
c906108c 1341
0000e5cc
PA
1342/* Insert a hardware breakpoint at address BP_TGT->placed_address in
1343 the target machine. Returns 0 for success, and returns non-zero or
1344 throws an error (with a detailed failure reason error code and
1345 message) otherwise. */
c906108c 1346
d914c394
SS
1347extern int target_insert_breakpoint (struct gdbarch *gdbarch,
1348 struct bp_target_info *bp_tgt);
c906108c 1349
8181d85f 1350/* Remove a breakpoint at address BP_TGT->placed_address in the target
578d3588 1351 machine. Result is 0 for success, non-zero for error. */
c906108c 1352
d914c394
SS
1353extern int target_remove_breakpoint (struct gdbarch *gdbarch,
1354 struct bp_target_info *bp_tgt);
c906108c
SS
1355
1356/* Initialize the terminal settings we record for the inferior,
1357 before we actually run the inferior. */
1358
1359#define target_terminal_init() \
c42bf286 1360 (*current_target.to_terminal_init) (&current_target)
c906108c
SS
1361
1362/* Put the inferior's terminal settings into effect.
1363 This is preparation for starting or resuming the inferior. */
1364
d9d2d8b6 1365extern void target_terminal_inferior (void);
c906108c
SS
1366
1367/* Put some of our terminal settings into effect,
1368 enough to get proper results from our output,
1369 but do not change into or out of RAW mode
1370 so that no input is discarded.
1371
1372 After doing this, either terminal_ours or terminal_inferior
1373 should be called to get back to a normal state of affairs. */
1374
1375#define target_terminal_ours_for_output() \
2e1e1a19 1376 (*current_target.to_terminal_ours_for_output) (&current_target)
c906108c
SS
1377
1378/* Put our terminal settings into effect.
1379 First record the inferior's terminal settings
1380 so they can be restored properly later. */
1381
1382#define target_terminal_ours() \
e3594fd1 1383 (*current_target.to_terminal_ours) (&current_target)
c906108c 1384
a790ad35
SC
1385/* Save our terminal settings.
1386 This is called from TUI after entering or leaving the curses
1387 mode. Since curses modifies our terminal this call is here
1388 to take this change into account. */
1389
1390#define target_terminal_save_ours() \
ae3bd431 1391 (*current_target.to_terminal_save_ours) (&current_target)
a790ad35 1392
c906108c
SS
1393/* Print useful information about our terminal status, if such a thing
1394 exists. */
1395
1396#define target_terminal_info(arg, from_tty) \
0a4f40a2 1397 (*current_target.to_terminal_info) (&current_target, arg, from_tty)
c906108c
SS
1398
1399/* Kill the inferior process. Make it go away. */
1400
7d85a9c0 1401extern void target_kill (void);
c906108c 1402
0d06e24b
JM
1403/* Load an executable file into the target process. This is expected
1404 to not only bring new code into the target process, but also to
1986bccd
AS
1405 update GDB's symbol tables to match.
1406
1407 ARG contains command-line arguments, to be broken down with
1408 buildargv (). The first non-switch argument is the filename to
1409 load, FILE; the second is a number (as parsed by strtoul (..., ...,
1410 0)), which is an offset to apply to the load addresses of FILE's
1411 sections. The target may define switches, or other non-switch
1412 arguments, as it pleases. */
c906108c 1413
11cf8741 1414extern void target_load (char *arg, int from_tty);
c906108c 1415
39f77062 1416/* Start an inferior process and set inferior_ptid to its pid.
c906108c
SS
1417 EXEC_FILE is the file to run.
1418 ALLARGS is a string containing the arguments to the program.
1419 ENV is the environment vector to pass. Errors reported with error().
1420 On VxWorks and various standalone systems, we ignore exec_file. */
c5aa993b 1421
136d6dae
VP
1422void target_create_inferior (char *exec_file, char *args,
1423 char **env, int from_tty);
c906108c
SS
1424
1425/* Some targets (such as ttrace-based HPUX) don't allow us to request
1426 notification of inferior events such as fork and vork immediately
1427 after the inferior is created. (This because of how gdb gets an
1428 inferior created via invoking a shell to do it. In such a scenario,
1429 if the shell init file has commands in it, the shell will fork and
1430 exec for each of those commands, and we will see each such fork
1431 event. Very bad.)
c5aa993b 1432
0d06e24b
JM
1433 Such targets will supply an appropriate definition for this function. */
1434
39f77062 1435#define target_post_startup_inferior(ptid) \
2e97a79e 1436 (*current_target.to_post_startup_inferior) (&current_target, ptid)
c906108c 1437
0d06e24b
JM
1438/* On some targets, we can catch an inferior fork or vfork event when
1439 it occurs. These functions insert/remove an already-created
77b06cd7
TJB
1440 catchpoint for such events. They return 0 for success, 1 if the
1441 catchpoint type is not supported and -1 for failure. */
c906108c 1442
c906108c 1443#define target_insert_fork_catchpoint(pid) \
a863b201 1444 (*current_target.to_insert_fork_catchpoint) (&current_target, pid)
c906108c
SS
1445
1446#define target_remove_fork_catchpoint(pid) \
973fc227 1447 (*current_target.to_remove_fork_catchpoint) (&current_target, pid)
c906108c
SS
1448
1449#define target_insert_vfork_catchpoint(pid) \
3ecc7da0 1450 (*current_target.to_insert_vfork_catchpoint) (&current_target, pid)
c906108c
SS
1451
1452#define target_remove_vfork_catchpoint(pid) \
e98cf0cd 1453 (*current_target.to_remove_vfork_catchpoint) (&current_target, pid)
c906108c 1454
6604731b
DJ
1455/* If the inferior forks or vforks, this function will be called at
1456 the next resume in order to perform any bookkeeping and fiddling
1457 necessary to continue debugging either the parent or child, as
1458 requested, and releasing the other. Information about the fork
1459 or vfork event is available via get_last_target_status ().
1460 This function returns 1 if the inferior should not be resumed
1461 (i.e. there is another event pending). */
0d06e24b 1462
07107ca6 1463int target_follow_fork (int follow_child, int detach_fork);
c906108c
SS
1464
1465/* On some targets, we can catch an inferior exec event when it
0d06e24b 1466 occurs. These functions insert/remove an already-created
77b06cd7
TJB
1467 catchpoint for such events. They return 0 for success, 1 if the
1468 catchpoint type is not supported and -1 for failure. */
0d06e24b 1469
c906108c 1470#define target_insert_exec_catchpoint(pid) \
ba025e51 1471 (*current_target.to_insert_exec_catchpoint) (&current_target, pid)
c5aa993b 1472
c906108c 1473#define target_remove_exec_catchpoint(pid) \
758e29d2 1474 (*current_target.to_remove_exec_catchpoint) (&current_target, pid)
c906108c 1475
a96d9b2e
SDJ
1476/* Syscall catch.
1477
1478 NEEDED is nonzero if any syscall catch (of any kind) is requested.
1479 If NEEDED is zero, it means the target can disable the mechanism to
1480 catch system calls because there are no more catchpoints of this type.
1481
1482 ANY_COUNT is nonzero if a generic (filter-less) syscall catch is
1483 being requested. In this case, both TABLE_SIZE and TABLE should
1484 be ignored.
1485
1486 TABLE_SIZE is the number of elements in TABLE. It only matters if
1487 ANY_COUNT is zero.
1488
1489 TABLE is an array of ints, indexed by syscall number. An element in
1490 this array is nonzero if that syscall should be caught. This argument
77b06cd7
TJB
1491 only matters if ANY_COUNT is zero.
1492
1493 Return 0 for success, 1 if syscall catchpoints are not supported or -1
1494 for failure. */
a96d9b2e
SDJ
1495
1496#define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \
ff214e67
TT
1497 (*current_target.to_set_syscall_catchpoint) (&current_target, \
1498 pid, needed, any_count, \
a96d9b2e
SDJ
1499 table_size, table)
1500
c906108c 1501/* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
0d06e24b
JM
1502 exit code of PID, if any. */
1503
c906108c 1504#define target_has_exited(pid,wait_status,exit_status) \
d796e1d6
TT
1505 (*current_target.to_has_exited) (&current_target, \
1506 pid,wait_status,exit_status)
c906108c
SS
1507
1508/* The debugger has completed a blocking wait() call. There is now
2146d243 1509 some process event that must be processed. This function should
c906108c 1510 be defined by those targets that require the debugger to perform
0d06e24b 1511 cleanup or internal state changes in response to the process event. */
c906108c
SS
1512
1513/* The inferior process has died. Do what is right. */
1514
136d6dae 1515void target_mourn_inferior (void);
c906108c
SS
1516
1517/* Does target have enough data to do a run or attach command? */
1518
1519#define target_can_run(t) \
da82bd6b 1520 ((t)->to_can_run) (t)
c906108c 1521
2455069d
UW
1522/* Set list of signals to be handled in the target.
1523
1524 PASS_SIGNALS is an array of size NSIG, indexed by target signal number
2ea28649 1525 (enum gdb_signal). For every signal whose entry in this array is
2455069d
UW
1526 non-zero, the target is allowed -but not required- to skip reporting
1527 arrival of the signal to the GDB core by returning from target_wait,
1528 and to pass the signal directly to the inferior instead.
1529
1530 However, if the target is hardware single-stepping a thread that is
1531 about to receive a signal, it needs to be reported in any case, even
1532 if mentioned in a previous target_pass_signals call. */
c906108c 1533
2455069d 1534extern void target_pass_signals (int nsig, unsigned char *pass_signals);
c906108c 1535
9b224c5e
PA
1536/* Set list of signals the target may pass to the inferior. This
1537 directly maps to the "handle SIGNAL pass/nopass" setting.
1538
1539 PROGRAM_SIGNALS is an array of size NSIG, indexed by target signal
2ea28649 1540 number (enum gdb_signal). For every signal whose entry in this
9b224c5e
PA
1541 array is non-zero, the target is allowed to pass the signal to the
1542 inferior. Signals not present in the array shall be silently
1543 discarded. This does not influence whether to pass signals to the
1544 inferior as a result of a target_resume call. This is useful in
1545 scenarios where the target needs to decide whether to pass or not a
1546 signal to the inferior without GDB core involvement, such as for
1547 example, when detaching (as threads may have been suspended with
1548 pending signals not reported to GDB). */
1549
1550extern void target_program_signals (int nsig, unsigned char *program_signals);
1551
c906108c
SS
1552/* Check to see if a thread is still alive. */
1553
28439f5e 1554extern int target_thread_alive (ptid_t ptid);
c906108c 1555
b83266a0
SS
1556/* Query for new threads and add them to the thread list. */
1557
28439f5e 1558extern void target_find_new_threads (void);
b83266a0 1559
0d06e24b
JM
1560/* Make target stop in a continuable fashion. (For instance, under
1561 Unix, this should act like SIGSTOP). This function is normally
1562 used by GUIs to implement a stop button. */
c906108c 1563
d914c394 1564extern void target_stop (ptid_t ptid);
c906108c 1565
96baa820
JM
1566/* Send the specified COMMAND to the target's monitor
1567 (shell,interpreter) for execution. The result of the query is
0d06e24b 1568 placed in OUTBUF. */
96baa820
JM
1569
1570#define target_rcmd(command, outbuf) \
1aac633b 1571 (*current_target.to_rcmd) (&current_target, command, outbuf)
96baa820
JM
1572
1573
c906108c
SS
1574/* Does the target include all of memory, or only part of it? This
1575 determines whether we look up the target chain for other parts of
1576 memory if this target can't satisfy a request. */
1577
c35b1492
PA
1578extern int target_has_all_memory_1 (void);
1579#define target_has_all_memory target_has_all_memory_1 ()
c906108c
SS
1580
1581/* Does the target include memory? (Dummy targets don't.) */
1582
c35b1492
PA
1583extern int target_has_memory_1 (void);
1584#define target_has_memory target_has_memory_1 ()
c906108c
SS
1585
1586/* Does the target have a stack? (Exec files don't, VxWorks doesn't, until
1587 we start a process.) */
c5aa993b 1588
c35b1492
PA
1589extern int target_has_stack_1 (void);
1590#define target_has_stack target_has_stack_1 ()
c906108c
SS
1591
1592/* Does the target have registers? (Exec files don't.) */
1593
c35b1492
PA
1594extern int target_has_registers_1 (void);
1595#define target_has_registers target_has_registers_1 ()
c906108c
SS
1596
1597/* Does the target have execution? Can we make it jump (through
52bb452f
DJ
1598 hoops), or pop its stack a few times? This means that the current
1599 target is currently executing; for some targets, that's the same as
1600 whether or not the target is capable of execution, but there are
1601 also targets which can be current while not executing. In that
1602 case this will become true after target_create_inferior or
1603 target_attach. */
c906108c 1604
aeaec162
TT
1605extern int target_has_execution_1 (ptid_t);
1606
1607/* Like target_has_execution_1, but always passes inferior_ptid. */
1608
1609extern int target_has_execution_current (void);
1610
1611#define target_has_execution target_has_execution_current ()
c35b1492
PA
1612
1613/* Default implementations for process_stratum targets. Return true
1614 if there's a selected inferior, false otherwise. */
1615
1616extern int default_child_has_all_memory (struct target_ops *ops);
1617extern int default_child_has_memory (struct target_ops *ops);
1618extern int default_child_has_stack (struct target_ops *ops);
1619extern int default_child_has_registers (struct target_ops *ops);
aeaec162
TT
1620extern int default_child_has_execution (struct target_ops *ops,
1621 ptid_t the_ptid);
c906108c
SS
1622
1623/* Can the target support the debugger control of thread execution?
d6350901 1624 Can it lock the thread scheduler? */
c906108c
SS
1625
1626#define target_can_lock_scheduler \
0d06e24b 1627 (current_target.to_has_thread_control & tc_schedlock)
c906108c 1628
c6ebd6cf
VP
1629/* Should the target enable async mode if it is supported? Temporary
1630 cludge until async mode is a strict superset of sync mode. */
1631extern int target_async_permitted;
1632
c378eb4e 1633/* Can the target support asynchronous execution? */
6a109b6b 1634#define target_can_async_p() (current_target.to_can_async_p (&current_target))
6426a772 1635
c378eb4e 1636/* Is the target in asynchronous execution mode? */
6a109b6b 1637#define target_is_async_p() (current_target.to_is_async_p (&current_target))
6426a772 1638
9908b566
VP
1639int target_supports_non_stop (void);
1640
c378eb4e 1641/* Put the target in async mode with the specified callback function. */
0d06e24b 1642#define target_async(CALLBACK,CONTEXT) \
6a109b6b 1643 (current_target.to_async (&current_target, (CALLBACK), (CONTEXT)))
43ff13b4 1644
32231432 1645#define target_execution_direction() \
4c612759 1646 (current_target.to_execution_direction (&current_target))
32231432 1647
c906108c
SS
1648/* Converts a process id to a string. Usually, the string just contains
1649 `process xyz', but on some systems it may contain
1650 `process xyz thread abc'. */
1651
117de6a9 1652extern char *target_pid_to_str (ptid_t ptid);
c906108c 1653
39f77062 1654extern char *normal_pid_to_str (ptid_t ptid);
c5aa993b 1655
0d06e24b
JM
1656/* Return a short string describing extra information about PID,
1657 e.g. "sleeping", "runnable", "running on LWP 3". Null return value
1658 is okay. */
1659
1660#define target_extra_thread_info(TP) \
c15906d8 1661 (current_target.to_extra_thread_info (&current_target, TP))
ed9a39eb 1662
4694da01
TT
1663/* Return the thread's name. A NULL result means that the target
1664 could not determine this thread's name. */
1665
1666extern char *target_thread_name (struct thread_info *);
1667
c906108c
SS
1668/* Attempts to find the pathname of the executable file
1669 that was run to create a specified process.
1670
1671 The process PID must be stopped when this operation is used.
c5aa993b 1672
c906108c
SS
1673 If the executable file cannot be determined, NULL is returned.
1674
1675 Else, a pointer to a character string containing the pathname
1676 is returned. This string should be copied into a buffer by
1677 the client if the string will not be immediately used, or if
0d06e24b 1678 it must persist. */
c906108c
SS
1679
1680#define target_pid_to_exec_file(pid) \
8dd27370 1681 (current_target.to_pid_to_exec_file) (&current_target, pid)
c906108c 1682
3a8f7b07 1683/* See the to_thread_architecture description in struct target_ops. */
c2250ad1
UW
1684
1685#define target_thread_architecture(ptid) \
1686 (current_target.to_thread_architecture (&current_target, ptid))
1687
be4d1333
MS
1688/*
1689 * Iterator function for target memory regions.
1690 * Calls a callback function once for each memory region 'mapped'
1691 * in the child process. Defined as a simple macro rather than
2146d243 1692 * as a function macro so that it can be tested for nullity.
be4d1333
MS
1693 */
1694
1695#define target_find_memory_regions(FUNC, DATA) \
2e73927c 1696 (current_target.to_find_memory_regions) (&current_target, FUNC, DATA)
be4d1333
MS
1697
1698/*
1699 * Compose corefile .note section.
1700 */
1701
1702#define target_make_corefile_notes(BFD, SIZE_P) \
fc6691b2 1703 (current_target.to_make_corefile_notes) (&current_target, BFD, SIZE_P)
be4d1333 1704
6b04bdb7
MS
1705/* Bookmark interfaces. */
1706#define target_get_bookmark(ARGS, FROM_TTY) \
dd0e2830 1707 (current_target.to_get_bookmark) (&current_target, ARGS, FROM_TTY)
6b04bdb7
MS
1708
1709#define target_goto_bookmark(ARG, FROM_TTY) \
3c80fb48 1710 (current_target.to_goto_bookmark) (&current_target, ARG, FROM_TTY)
6b04bdb7 1711
c906108c
SS
1712/* Hardware watchpoint interfaces. */
1713
1714/* Returns non-zero if we were stopped by a hardware watchpoint (memory read or
7f82dfc7 1715 write). Only the INFERIOR_PTID task is being queried. */
c906108c 1716
6a109b6b
TT
1717#define target_stopped_by_watchpoint() \
1718 ((*current_target.to_stopped_by_watchpoint) (&current_target))
7df1a324 1719
74174d2e
UW
1720/* Non-zero if we have steppable watchpoints */
1721
d92524f1 1722#define target_have_steppable_watchpoint \
74174d2e 1723 (current_target.to_have_steppable_watchpoint)
74174d2e 1724
7df1a324
KW
1725/* Non-zero if we have continuable watchpoints */
1726
d92524f1 1727#define target_have_continuable_watchpoint \
7df1a324 1728 (current_target.to_have_continuable_watchpoint)
c906108c 1729
ccaa32c7 1730/* Provide defaults for hardware watchpoint functions. */
c906108c 1731
2146d243 1732/* If the *_hw_beakpoint functions have not been defined
ccaa32c7 1733 elsewhere use the definitions in the target vector. */
c906108c
SS
1734
1735/* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is
1736 one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or
1737 bp_hardware_breakpoint. CNT is the number of such watchpoints used so far
1738 (including this one?). OTHERTYPE is who knows what... */
1739
d92524f1 1740#define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \
5461485a
TT
1741 (*current_target.to_can_use_hw_breakpoint) (&current_target, \
1742 TYPE, CNT, OTHERTYPE);
c906108c 1743
e09342b5
TJB
1744/* Returns the number of debug registers needed to watch the given
1745 memory region, or zero if not supported. */
1746
d92524f1 1747#define target_region_ok_for_hw_watchpoint(addr, len) \
31568a15
TT
1748 (*current_target.to_region_ok_for_hw_watchpoint) (&current_target, \
1749 addr, len)
e0d24f8d 1750
c906108c 1751
85d721b8
PA
1752/* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes.
1753 TYPE is 0 for write, 1 for read, and 2 for read/write accesses.
0cf6dd15 1754 COND is the expression for its condition, or NULL if there's none.
85d721b8
PA
1755 Returns 0 for success, 1 if the watchpoint type is not supported,
1756 -1 for failure. */
c906108c 1757
0cf6dd15 1758#define target_insert_watchpoint(addr, len, type, cond) \
7bb99c53
TT
1759 (*current_target.to_insert_watchpoint) (&current_target, \
1760 addr, len, type, cond)
c906108c 1761
0cf6dd15 1762#define target_remove_watchpoint(addr, len, type, cond) \
11b5219a
TT
1763 (*current_target.to_remove_watchpoint) (&current_target, \
1764 addr, len, type, cond)
c906108c 1765
9c06b0b4
TJB
1766/* Insert a new masked watchpoint at ADDR using the mask MASK.
1767 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1768 or hw_access for an access watchpoint. Returns 0 for success, 1 if
1769 masked watchpoints are not supported, -1 for failure. */
1770
1771extern int target_insert_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
1772
1773/* Remove a masked watchpoint at ADDR with the mask MASK.
1774 RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
1775 or hw_access for an access watchpoint. Returns 0 for success, non-zero
1776 for failure. */
1777
1778extern int target_remove_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
1779
0000e5cc
PA
1780/* Insert a hardware breakpoint at address BP_TGT->placed_address in
1781 the target machine. Returns 0 for success, and returns non-zero or
1782 throws an error (with a detailed failure reason error code and
1783 message) otherwise. */
1784
a6d9a66e 1785#define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
23a26771
TT
1786 (*current_target.to_insert_hw_breakpoint) (&current_target, \
1787 gdbarch, bp_tgt)
ccaa32c7 1788
a6d9a66e 1789#define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
a64dc96c
TT
1790 (*current_target.to_remove_hw_breakpoint) (&current_target, \
1791 gdbarch, bp_tgt)
c906108c 1792
f1310107
TJB
1793/* Return number of debug registers needed for a ranged breakpoint,
1794 or -1 if ranged breakpoints are not supported. */
1795
1796extern int target_ranged_break_num_registers (void);
1797
7f82dfc7
JK
1798/* Return non-zero if target knows the data address which triggered this
1799 target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the
1800 INFERIOR_PTID task is being queried. */
1801#define target_stopped_data_address(target, addr_p) \
1802 (*target.to_stopped_data_address) (target, addr_p)
c906108c 1803
9b3e86b1
MR
1804/* Return non-zero if ADDR is within the range of a watchpoint spanning
1805 LENGTH bytes beginning at START. */
5009afc5
AS
1806#define target_watchpoint_addr_within_range(target, addr, start, length) \
1807 (*target.to_watchpoint_addr_within_range) (target, addr, start, length)
1808
0cf6dd15
TJB
1809/* Return non-zero if the target is capable of using hardware to evaluate
1810 the condition expression. In this case, if the condition is false when
1811 the watched memory location changes, execution may continue without the
1812 debugger being notified.
1813
1814 Due to limitations in the hardware implementation, it may be capable of
1815 avoiding triggering the watchpoint in some cases where the condition
1816 expression is false, but may report some false positives as well.
1817 For this reason, GDB will still evaluate the condition expression when
1818 the watchpoint triggers. */
1819#define target_can_accel_watchpoint_condition(addr, len, type, cond) \
c3a5ff89
TT
1820 (*current_target.to_can_accel_watchpoint_condition) (&current_target, \
1821 addr, len, type, cond)
0cf6dd15 1822
9c06b0b4
TJB
1823/* Return number of debug registers needed for a masked watchpoint,
1824 -1 if masked watchpoints are not supported or -2 if the given address
1825 and mask combination cannot be used. */
1826
1827extern int target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask);
1828
b2175913
MS
1829/* Target can execute in reverse? */
1830#define target_can_execute_reverse \
53e1cfc7 1831 current_target.to_can_execute_reverse (&current_target)
b2175913 1832
424163ea
DJ
1833extern const struct target_desc *target_read_description (struct target_ops *);
1834
0ef643c8 1835#define target_get_ada_task_ptid(lwp, tid) \
1e6b91a4 1836 (*current_target.to_get_ada_task_ptid) (&current_target, lwp,tid)
0ef643c8 1837
08388c79
DE
1838/* Utility implementation of searching memory. */
1839extern int simple_search_memory (struct target_ops* ops,
1840 CORE_ADDR start_addr,
1841 ULONGEST search_space_len,
1842 const gdb_byte *pattern,
1843 ULONGEST pattern_len,
1844 CORE_ADDR *found_addrp);
1845
1846/* Main entry point for searching memory. */
1847extern int target_search_memory (CORE_ADDR start_addr,
1848 ULONGEST search_space_len,
1849 const gdb_byte *pattern,
1850 ULONGEST pattern_len,
1851 CORE_ADDR *found_addrp);
1852
7313baad
UW
1853/* Target file operations. */
1854
1855/* Open FILENAME on the target, using FLAGS and MODE. Return a
1856 target file descriptor, or -1 if an error occurs (and set
1857 *TARGET_ERRNO). */
1858extern int target_fileio_open (const char *filename, int flags, int mode,
1859 int *target_errno);
1860
1861/* Write up to LEN bytes from WRITE_BUF to FD on the target.
1862 Return the number of bytes written, or -1 if an error occurs
1863 (and set *TARGET_ERRNO). */
1864extern int target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
1865 ULONGEST offset, int *target_errno);
1866
1867/* Read up to LEN bytes FD on the target into READ_BUF.
1868 Return the number of bytes read, or -1 if an error occurs
1869 (and set *TARGET_ERRNO). */
1870extern int target_fileio_pread (int fd, gdb_byte *read_buf, int len,
1871 ULONGEST offset, int *target_errno);
1872
1873/* Close FD on the target. Return 0, or -1 if an error occurs
1874 (and set *TARGET_ERRNO). */
1875extern int target_fileio_close (int fd, int *target_errno);
1876
1877/* Unlink FILENAME on the target. Return 0, or -1 if an error
1878 occurs (and set *TARGET_ERRNO). */
1879extern int target_fileio_unlink (const char *filename, int *target_errno);
1880
b9e7b9c3
UW
1881/* Read value of symbolic link FILENAME on the target. Return a
1882 null-terminated string allocated via xmalloc, or NULL if an error
1883 occurs (and set *TARGET_ERRNO). */
1884extern char *target_fileio_readlink (const char *filename, int *target_errno);
1885
7313baad
UW
1886/* Read target file FILENAME. The return value will be -1 if the transfer
1887 fails or is not supported; 0 if the object is empty; or the length
1888 of the object otherwise. If a positive value is returned, a
1889 sufficiently large buffer will be allocated using xmalloc and
1890 returned in *BUF_P containing the contents of the object.
1891
1892 This method should be used for objects sufficiently small to store
1893 in a single xmalloc'd buffer, when no fixed bound on the object's
1894 size is known in advance. */
1895extern LONGEST target_fileio_read_alloc (const char *filename,
1896 gdb_byte **buf_p);
1897
1898/* Read target file FILENAME. The result is NUL-terminated and
1899 returned as a string, allocated using xmalloc. If an error occurs
1900 or the transfer is unsupported, NULL is returned. Empty objects
1901 are returned as allocated but empty strings. A warning is issued
1902 if the result contains any embedded NUL bytes. */
1903extern char *target_fileio_read_stralloc (const char *filename);
1904
1905
35b1e5cc
SS
1906/* Tracepoint-related operations. */
1907
1908#define target_trace_init() \
ecae04e1 1909 (*current_target.to_trace_init) (&current_target)
35b1e5cc
SS
1910
1911#define target_download_tracepoint(t) \
548f7808 1912 (*current_target.to_download_tracepoint) (&current_target, t)
35b1e5cc 1913
1e4d1764 1914#define target_can_download_tracepoint() \
a52a8357 1915 (*current_target.to_can_download_tracepoint) (&current_target)
1e4d1764 1916
35b1e5cc 1917#define target_download_trace_state_variable(tsv) \
559d2b81 1918 (*current_target.to_download_trace_state_variable) (&current_target, tsv)
35b1e5cc 1919
d248b706 1920#define target_enable_tracepoint(loc) \
46670d57 1921 (*current_target.to_enable_tracepoint) (&current_target, loc)
d248b706
KY
1922
1923#define target_disable_tracepoint(loc) \
780b049c 1924 (*current_target.to_disable_tracepoint) (&current_target, loc)
d248b706 1925
35b1e5cc 1926#define target_trace_start() \
e2d1aae3 1927 (*current_target.to_trace_start) (&current_target)
35b1e5cc
SS
1928
1929#define target_trace_set_readonly_regions() \
583f9a86 1930 (*current_target.to_trace_set_readonly_regions) (&current_target)
35b1e5cc 1931
00bf0b85 1932#define target_get_trace_status(ts) \
8bd200f1 1933 (*current_target.to_get_trace_status) (&current_target, ts)
35b1e5cc 1934
f196051f 1935#define target_get_tracepoint_status(tp,utp) \
db90e85c 1936 (*current_target.to_get_tracepoint_status) (&current_target, tp, utp)
f196051f 1937
35b1e5cc 1938#define target_trace_stop() \
74499f1b 1939 (*current_target.to_trace_stop) (&current_target)
35b1e5cc
SS
1940
1941#define target_trace_find(type,num,addr1,addr2,tpp) \
bd4c6793
TT
1942 (*current_target.to_trace_find) (&current_target, \
1943 (type), (num), (addr1), (addr2), (tpp))
35b1e5cc
SS
1944
1945#define target_get_trace_state_variable_value(tsv,val) \
4011015b
TT
1946 (*current_target.to_get_trace_state_variable_value) (&current_target, \
1947 (tsv), (val))
35b1e5cc 1948
00bf0b85 1949#define target_save_trace_data(filename) \
dc3decaf 1950 (*current_target.to_save_trace_data) (&current_target, filename)
00bf0b85
SS
1951
1952#define target_upload_tracepoints(utpp) \
ab6617cc 1953 (*current_target.to_upload_tracepoints) (&current_target, utpp)
00bf0b85
SS
1954
1955#define target_upload_trace_state_variables(utsvp) \
181e3713 1956 (*current_target.to_upload_trace_state_variables) (&current_target, utsvp)
00bf0b85
SS
1957
1958#define target_get_raw_trace_data(buf,offset,len) \
88ee6f45
TT
1959 (*current_target.to_get_raw_trace_data) (&current_target, \
1960 (buf), (offset), (len))
00bf0b85 1961
405f8e94 1962#define target_get_min_fast_tracepoint_insn_len() \
0e67620a 1963 (*current_target.to_get_min_fast_tracepoint_insn_len) (&current_target)
405f8e94 1964
35b1e5cc 1965#define target_set_disconnected_tracing(val) \
37b25738 1966 (*current_target.to_set_disconnected_tracing) (&current_target, val)
35b1e5cc 1967
4daf5ac0 1968#define target_set_circular_trace_buffer(val) \
736d5b1f 1969 (*current_target.to_set_circular_trace_buffer) (&current_target, val)
4daf5ac0 1970
f6f899bf 1971#define target_set_trace_buffer_size(val) \
4da384be 1972 (*current_target.to_set_trace_buffer_size) (&current_target, val)
f6f899bf 1973
f196051f 1974#define target_set_trace_notes(user,notes,stopnotes) \
d9e68a2c
TT
1975 (*current_target.to_set_trace_notes) (&current_target, \
1976 (user), (notes), (stopnotes))
f196051f 1977
711e434b 1978#define target_get_tib_address(ptid, addr) \
bd7ae0f5 1979 (*current_target.to_get_tib_address) (&current_target, (ptid), (addr))
711e434b 1980
d914c394 1981#define target_set_permissions() \
c378d69d 1982 (*current_target.to_set_permissions) (&current_target)
d914c394 1983
0fb4aa4b 1984#define target_static_tracepoint_marker_at(addr, marker) \
61fc905d
TT
1985 (*current_target.to_static_tracepoint_marker_at) (&current_target, \
1986 addr, marker)
0fb4aa4b
PA
1987
1988#define target_static_tracepoint_markers_by_strid(marker_id) \
c686c57f
TT
1989 (*current_target.to_static_tracepoint_markers_by_strid) (&current_target, \
1990 marker_id)
0fb4aa4b 1991
b3b9301e 1992#define target_traceframe_info() \
a893e81f 1993 (*current_target.to_traceframe_info) (&current_target)
b3b9301e 1994
d1feda86 1995#define target_use_agent(use) \
2c152180 1996 (*current_target.to_use_agent) (&current_target, use)
d1feda86
YQ
1997
1998#define target_can_use_agent() \
fe38f897 1999 (*current_target.to_can_use_agent) (&current_target)
d1feda86 2000
ced63ec0 2001#define target_augmented_libraries_svr4_read() \
5436ff03 2002 (*current_target.to_augmented_libraries_svr4_read) (&current_target)
ced63ec0 2003
49d03eab
MR
2004/* Command logging facility. */
2005
d9cb0195
TT
2006#define target_log_command(p) \
2007 (*current_target.to_log_command) (&current_target, p)
49d03eab 2008
dc146f7c
VP
2009
2010extern int target_core_of_thread (ptid_t ptid);
2011
ea001bdc
MM
2012/* See to_get_unwinder in struct target_ops. */
2013extern const struct frame_unwind *target_get_unwinder (void);
2014
2015/* See to_get_tailcall_unwinder in struct target_ops. */
2016extern const struct frame_unwind *target_get_tailcall_unwinder (void);
2017
4a5e7a5b
PA
2018/* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches
2019 the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0
2020 if there's a mismatch, and -1 if an error is encountered while
2021 reading memory. Throws an error if the functionality is found not
2022 to be supported by the current target. */
2023int target_verify_memory (const gdb_byte *data,
2024 CORE_ADDR memaddr, ULONGEST size);
2025
c906108c
SS
2026/* Routines for maintenance of the target structures...
2027
c22a2b88
TT
2028 complete_target_initialization: Finalize a target_ops by filling in
2029 any fields needed by the target implementation.
2030
c906108c
SS
2031 add_target: Add a target to the list of all possible targets.
2032
2033 push_target: Make this target the top of the stack of currently used
c5aa993b
JM
2034 targets, within its particular stratum of the stack. Result
2035 is 0 if now atop the stack, nonzero if not on top (maybe
2036 should warn user).
c906108c
SS
2037
2038 unpush_target: Remove this from the stack of currently used targets,
c5aa993b 2039 no matter where it is on the list. Returns 0 if no
7fdc1521 2040 change, 1 if removed from stack. */
c906108c 2041
a14ed312 2042extern void add_target (struct target_ops *);
c906108c 2043
9852c492
YQ
2044extern void add_target_with_completer (struct target_ops *t,
2045 completer_ftype *completer);
2046
c22a2b88
TT
2047extern void complete_target_initialization (struct target_ops *t);
2048
b48d48eb
MM
2049/* Adds a command ALIAS for target T and marks it deprecated. This is useful
2050 for maintaining backwards compatibility when renaming targets. */
2051
2052extern void add_deprecated_target_alias (struct target_ops *t, char *alias);
2053
b26a4dcb 2054extern void push_target (struct target_ops *);
c906108c 2055
a14ed312 2056extern int unpush_target (struct target_ops *);
c906108c 2057
fd79ecee
DJ
2058extern void target_pre_inferior (int);
2059
a14ed312 2060extern void target_preopen (int);
c906108c 2061
460014f5
JK
2062/* Does whatever cleanup is required to get rid of all pushed targets. */
2063extern void pop_all_targets (void);
aa76d38d 2064
87ab71f0
PA
2065/* Like pop_all_targets, but pops only targets whose stratum is
2066 strictly above ABOVE_STRATUM. */
460014f5 2067extern void pop_all_targets_above (enum strata above_stratum);
87ab71f0 2068
c0edd9ed
JK
2069extern int target_is_pushed (struct target_ops *t);
2070
9e35dae4
DJ
2071extern CORE_ADDR target_translate_tls_address (struct objfile *objfile,
2072 CORE_ADDR offset);
2073
0542c86d 2074/* Struct target_section maps address ranges to file sections. It is
c906108c
SS
2075 mostly used with BFD files, but can be used without (e.g. for handling
2076 raw disks, or files not in formats handled by BFD). */
2077
0542c86d 2078struct target_section
c5aa993b
JM
2079 {
2080 CORE_ADDR addr; /* Lowest address in section */
2081 CORE_ADDR endaddr; /* 1+highest address in section */
c906108c 2082
7be0c536 2083 struct bfd_section *the_bfd_section;
c906108c 2084
046ac79f
JK
2085 /* The "owner" of the section.
2086 It can be any unique value. It is set by add_target_sections
2087 and used by remove_target_sections.
2088 For example, for executables it is a pointer to exec_bfd and
2089 for shlibs it is the so_list pointer. */
2090 void *owner;
c5aa993b 2091 };
c906108c 2092
07b82ea5
PA
2093/* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */
2094
2095struct target_section_table
2096{
2097 struct target_section *sections;
2098 struct target_section *sections_end;
2099};
2100
8db32d44 2101/* Return the "section" containing the specified address. */
0542c86d
PA
2102struct target_section *target_section_by_addr (struct target_ops *target,
2103 CORE_ADDR addr);
8db32d44 2104
07b82ea5
PA
2105/* Return the target section table this target (or the targets
2106 beneath) currently manipulate. */
2107
2108extern struct target_section_table *target_get_section_table
2109 (struct target_ops *target);
2110
c906108c
SS
2111/* From mem-break.c */
2112
3db08215 2113extern int memory_remove_breakpoint (struct target_ops *, struct gdbarch *,
3e43a32a 2114 struct bp_target_info *);
c906108c 2115
3db08215 2116extern int memory_insert_breakpoint (struct target_ops *, struct gdbarch *,
3e43a32a 2117 struct bp_target_info *);
c906108c 2118
3e43a32a
MS
2119extern int default_memory_remove_breakpoint (struct gdbarch *,
2120 struct bp_target_info *);
917317f4 2121
3e43a32a
MS
2122extern int default_memory_insert_breakpoint (struct gdbarch *,
2123 struct bp_target_info *);
917317f4 2124
c906108c
SS
2125
2126/* From target.c */
2127
a14ed312 2128extern void initialize_targets (void);
c906108c 2129
c25c4a8b 2130extern void noprocess (void) ATTRIBUTE_NORETURN;
c906108c 2131
8edfe269
DJ
2132extern void target_require_runnable (void);
2133
136d6dae 2134extern void find_default_attach (struct target_ops *, char *, int);
c906108c 2135
136d6dae
VP
2136extern void find_default_create_inferior (struct target_ops *,
2137 char *, char *, char **, int);
c906108c 2138
a14ed312 2139extern struct target_ops *find_target_beneath (struct target_ops *);
ed9a39eb 2140
8b06beed
TT
2141/* Find the target at STRATUM. If no target is at that stratum,
2142 return NULL. */
2143
2144struct target_ops *find_target_at (enum strata stratum);
2145
e0665bc8
PA
2146/* Read OS data object of type TYPE from the target, and return it in
2147 XML format. The result is NUL-terminated and returned as a string,
2148 allocated using xmalloc. If an error occurs or the transfer is
2149 unsupported, NULL is returned. Empty objects are returned as
2150 allocated but empty strings. */
2151
07e059b5
VP
2152extern char *target_get_osdata (const char *type);
2153
c906108c
SS
2154\f
2155/* Stuff that should be shared among the various remote targets. */
2156
2157/* Debugging level. 0 is off, and non-zero values mean to print some debug
2158 information (higher values, more information). */
2159extern int remote_debug;
2160
2161/* Speed in bits per second, or -1 which means don't mess with the speed. */
2162extern int baud_rate;
c378eb4e 2163/* Timeout limit for response from target. */
c906108c
SS
2164extern int remote_timeout;
2165
c906108c 2166\f
c906108c 2167
8defab1a
DJ
2168/* Set the show memory breakpoints mode to show, and installs a cleanup
2169 to restore it back to the current value. */
2170extern struct cleanup *make_show_memory_breakpoints_cleanup (int show);
2171
d914c394
SS
2172extern int may_write_registers;
2173extern int may_write_memory;
2174extern int may_insert_breakpoints;
2175extern int may_insert_tracepoints;
2176extern int may_insert_fast_tracepoints;
2177extern int may_stop;
2178
2179extern void update_target_permissions (void);
2180
c906108c 2181\f
c378eb4e 2182/* Imported from machine dependent code. */
c906108c 2183
c378eb4e 2184/* Blank target vector entries are initialized to target_ignore. */
a14ed312 2185void target_ignore (void);
c906108c 2186
02d27625 2187/* See to_supports_btrace in struct target_ops. */
46917d26
TT
2188#define target_supports_btrace() \
2189 (current_target.to_supports_btrace (&current_target))
02d27625
MM
2190
2191/* See to_enable_btrace in struct target_ops. */
2192extern struct btrace_target_info *target_enable_btrace (ptid_t ptid);
2193
2194/* See to_disable_btrace in struct target_ops. */
2195extern void target_disable_btrace (struct btrace_target_info *btinfo);
2196
2197/* See to_teardown_btrace in struct target_ops. */
2198extern void target_teardown_btrace (struct btrace_target_info *btinfo);
2199
2200/* See to_read_btrace in struct target_ops. */
969c39fb
MM
2201extern enum btrace_error target_read_btrace (VEC (btrace_block_s) **,
2202 struct btrace_target_info *,
2203 enum btrace_read_type);
02d27625 2204
7c1687a9
MM
2205/* See to_stop_recording in struct target_ops. */
2206extern void target_stop_recording (void);
2207
d02ed0bb
MM
2208/* See to_info_record in struct target_ops. */
2209extern void target_info_record (void);
2210
2211/* See to_save_record in struct target_ops. */
85e1311a 2212extern void target_save_record (const char *filename);
d02ed0bb
MM
2213
2214/* Query if the target supports deleting the execution log. */
2215extern int target_supports_delete_record (void);
2216
2217/* See to_delete_record in struct target_ops. */
2218extern void target_delete_record (void);
2219
2220/* See to_record_is_replaying in struct target_ops. */
2221extern int target_record_is_replaying (void);
2222
2223/* See to_goto_record_begin in struct target_ops. */
2224extern void target_goto_record_begin (void);
2225
2226/* See to_goto_record_end in struct target_ops. */
2227extern void target_goto_record_end (void);
2228
2229/* See to_goto_record in struct target_ops. */
2230extern void target_goto_record (ULONGEST insn);
02d27625 2231
67c86d06
MM
2232/* See to_insn_history. */
2233extern void target_insn_history (int size, int flags);
2234
2235/* See to_insn_history_from. */
2236extern void target_insn_history_from (ULONGEST from, int size, int flags);
2237
2238/* See to_insn_history_range. */
2239extern void target_insn_history_range (ULONGEST begin, ULONGEST end, int flags);
2240
15984c13
MM
2241/* See to_call_history. */
2242extern void target_call_history (int size, int flags);
2243
2244/* See to_call_history_from. */
2245extern void target_call_history_from (ULONGEST begin, int size, int flags);
2246
2247/* See to_call_history_range. */
2248extern void target_call_history_range (ULONGEST begin, ULONGEST end, int flags);
2249
118e6252
MM
2250/* See to_decr_pc_after_break. Start searching for the target at OPS. */
2251extern CORE_ADDR forward_target_decr_pc_after_break (struct target_ops *ops,
2252 struct gdbarch *gdbarch);
2253
2254/* See to_decr_pc_after_break. */
2255extern CORE_ADDR target_decr_pc_after_break (struct gdbarch *gdbarch);
2256
c5aa993b 2257#endif /* !defined (TARGET_H) */
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