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c906108c | 1 | /* Interface between GDB and target environments, including files and processes |
0088c768 | 2 | |
6aba47ca | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
7b6bb8da | 4 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
f6519ebc | 5 | Free Software Foundation, Inc. |
0088c768 | 6 | |
c906108c SS |
7 | Contributed by Cygnus Support. Written by John Gilmore. |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #if !defined (TARGET_H) | |
25 | #define TARGET_H | |
26 | ||
da3331ec AC |
27 | struct objfile; |
28 | struct ui_file; | |
29 | struct mem_attrib; | |
1e3ff5ad | 30 | struct target_ops; |
d248b706 | 31 | struct bp_location; |
8181d85f | 32 | struct bp_target_info; |
56be3814 | 33 | struct regcache; |
07b82ea5 | 34 | struct target_section_table; |
35b1e5cc | 35 | struct trace_state_variable; |
00bf0b85 SS |
36 | struct trace_status; |
37 | struct uploaded_tsv; | |
38 | struct uploaded_tp; | |
0fb4aa4b | 39 | struct static_tracepoint_marker; |
b3b9301e | 40 | struct traceframe_info; |
0cf6dd15 TJB |
41 | struct expression; |
42 | ||
c906108c SS |
43 | /* This include file defines the interface between the main part |
44 | of the debugger, and the part which is target-specific, or | |
45 | specific to the communications interface between us and the | |
46 | target. | |
47 | ||
2146d243 RM |
48 | A TARGET is an interface between the debugger and a particular |
49 | kind of file or process. Targets can be STACKED in STRATA, | |
c906108c SS |
50 | so that more than one target can potentially respond to a request. |
51 | In particular, memory accesses will walk down the stack of targets | |
52 | until they find a target that is interested in handling that particular | |
53 | address. STRATA are artificial boundaries on the stack, within | |
54 | which particular kinds of targets live. Strata exist so that | |
55 | people don't get confused by pushing e.g. a process target and then | |
56 | a file target, and wondering why they can't see the current values | |
57 | of variables any more (the file target is handling them and they | |
58 | never get to the process target). So when you push a file target, | |
59 | it goes into the file stratum, which is always below the process | |
60 | stratum. */ | |
61 | ||
62 | #include "bfd.h" | |
63 | #include "symtab.h" | |
29e57380 | 64 | #include "memattr.h" |
fd79ecee | 65 | #include "vec.h" |
2aecd87f | 66 | #include "gdb_signals.h" |
c906108c | 67 | |
c5aa993b JM |
68 | enum strata |
69 | { | |
70 | dummy_stratum, /* The lowest of the low */ | |
71 | file_stratum, /* Executable files, etc */ | |
c0edd9ed | 72 | process_stratum, /* Executing processes or core dump files */ |
81e64f55 | 73 | thread_stratum, /* Executing threads */ |
85e747d2 UW |
74 | record_stratum, /* Support record debugging */ |
75 | arch_stratum /* Architecture overrides */ | |
c5aa993b | 76 | }; |
c906108c | 77 | |
c5aa993b JM |
78 | enum thread_control_capabilities |
79 | { | |
0d06e24b JM |
80 | tc_none = 0, /* Default: can't control thread execution. */ |
81 | tc_schedlock = 1, /* Can lock the thread scheduler. */ | |
c5aa993b | 82 | }; |
c906108c SS |
83 | |
84 | /* Stuff for target_wait. */ | |
85 | ||
86 | /* Generally, what has the program done? */ | |
c5aa993b JM |
87 | enum target_waitkind |
88 | { | |
89 | /* The program has exited. The exit status is in value.integer. */ | |
90 | TARGET_WAITKIND_EXITED, | |
c906108c | 91 | |
0d06e24b JM |
92 | /* The program has stopped with a signal. Which signal is in |
93 | value.sig. */ | |
c5aa993b | 94 | TARGET_WAITKIND_STOPPED, |
c906108c | 95 | |
c5aa993b JM |
96 | /* The program has terminated with a signal. Which signal is in |
97 | value.sig. */ | |
98 | TARGET_WAITKIND_SIGNALLED, | |
c906108c | 99 | |
c5aa993b JM |
100 | /* The program is letting us know that it dynamically loaded something |
101 | (e.g. it called load(2) on AIX). */ | |
102 | TARGET_WAITKIND_LOADED, | |
c906108c | 103 | |
3a3e9ee3 | 104 | /* The program has forked. A "related" process' PTID is in |
0d06e24b JM |
105 | value.related_pid. I.e., if the child forks, value.related_pid |
106 | is the parent's ID. */ | |
107 | ||
c5aa993b | 108 | TARGET_WAITKIND_FORKED, |
c906108c | 109 | |
3a3e9ee3 | 110 | /* The program has vforked. A "related" process's PTID is in |
0d06e24b JM |
111 | value.related_pid. */ |
112 | ||
c5aa993b | 113 | TARGET_WAITKIND_VFORKED, |
c906108c | 114 | |
0d06e24b JM |
115 | /* The program has exec'ed a new executable file. The new file's |
116 | pathname is pointed to by value.execd_pathname. */ | |
117 | ||
c5aa993b | 118 | TARGET_WAITKIND_EXECD, |
c906108c | 119 | |
6c95b8df PA |
120 | /* The program had previously vforked, and now the child is done |
121 | with the shared memory region, because it exec'ed or exited. | |
122 | Note that the event is reported to the vfork parent. This is | |
123 | only used if GDB did not stay attached to the vfork child, | |
124 | otherwise, a TARGET_WAITKIND_EXECD or | |
125 | TARGET_WAITKIND_EXIT|SIGNALLED event associated with the child | |
126 | has the same effect. */ | |
127 | TARGET_WAITKIND_VFORK_DONE, | |
128 | ||
0d06e24b JM |
129 | /* The program has entered or returned from a system call. On |
130 | HP-UX, this is used in the hardware watchpoint implementation. | |
c378eb4e | 131 | The syscall's unique integer ID number is in value.syscall_id. */ |
0d06e24b | 132 | |
c5aa993b JM |
133 | TARGET_WAITKIND_SYSCALL_ENTRY, |
134 | TARGET_WAITKIND_SYSCALL_RETURN, | |
c906108c | 135 | |
c5aa993b JM |
136 | /* Nothing happened, but we stopped anyway. This perhaps should be handled |
137 | within target_wait, but I'm not sure target_wait should be resuming the | |
138 | inferior. */ | |
c4093a6a JM |
139 | TARGET_WAITKIND_SPURIOUS, |
140 | ||
8e7d2c16 DJ |
141 | /* An event has occured, but we should wait again. |
142 | Remote_async_wait() returns this when there is an event | |
c4093a6a | 143 | on the inferior, but the rest of the world is not interested in |
c378eb4e MS |
144 | it. The inferior has not stopped, but has just sent some output |
145 | to the console, for instance. In this case, we want to go back | |
c4093a6a JM |
146 | to the event loop and wait there for another event from the |
147 | inferior, rather than being stuck in the remote_async_wait() | |
c378eb4e | 148 | function. sThis way the event loop is responsive to other events, |
0d06e24b | 149 | like for instance the user typing. */ |
b2175913 MS |
150 | TARGET_WAITKIND_IGNORE, |
151 | ||
152 | /* The target has run out of history information, | |
153 | and cannot run backward any further. */ | |
154 | TARGET_WAITKIND_NO_HISTORY | |
c906108c SS |
155 | }; |
156 | ||
c5aa993b JM |
157 | struct target_waitstatus |
158 | { | |
159 | enum target_waitkind kind; | |
160 | ||
a96d9b2e SDJ |
161 | /* Forked child pid, execd pathname, exit status, signal number or |
162 | syscall number. */ | |
c5aa993b JM |
163 | union |
164 | { | |
165 | int integer; | |
166 | enum target_signal sig; | |
3a3e9ee3 | 167 | ptid_t related_pid; |
c5aa993b | 168 | char *execd_pathname; |
a96d9b2e | 169 | int syscall_number; |
c5aa993b JM |
170 | } |
171 | value; | |
172 | }; | |
c906108c | 173 | |
47608cb1 PA |
174 | /* Options that can be passed to target_wait. */ |
175 | ||
176 | /* Return immediately if there's no event already queued. If this | |
177 | options is not requested, target_wait blocks waiting for an | |
178 | event. */ | |
179 | #define TARGET_WNOHANG 1 | |
180 | ||
a96d9b2e SDJ |
181 | /* The structure below stores information about a system call. |
182 | It is basically used in the "catch syscall" command, and in | |
183 | every function that gives information about a system call. | |
184 | ||
185 | It's also good to mention that its fields represent everything | |
186 | that we currently know about a syscall in GDB. */ | |
187 | struct syscall | |
188 | { | |
189 | /* The syscall number. */ | |
190 | int number; | |
191 | ||
192 | /* The syscall name. */ | |
193 | const char *name; | |
194 | }; | |
195 | ||
f00150c9 DE |
196 | /* Return a pretty printed form of target_waitstatus. |
197 | Space for the result is malloc'd, caller must free. */ | |
198 | extern char *target_waitstatus_to_string (const struct target_waitstatus *); | |
199 | ||
2acceee2 | 200 | /* Possible types of events that the inferior handler will have to |
0d06e24b | 201 | deal with. */ |
2acceee2 JM |
202 | enum inferior_event_type |
203 | { | |
2acceee2 | 204 | /* Process a normal inferior event which will result in target_wait |
0d06e24b | 205 | being called. */ |
2146d243 | 206 | INF_REG_EVENT, |
0d06e24b | 207 | /* We are called because a timer went off. */ |
2acceee2 | 208 | INF_TIMER, |
0d06e24b | 209 | /* We are called to do stuff after the inferior stops. */ |
c2d11a7d JM |
210 | INF_EXEC_COMPLETE, |
211 | /* We are called to do some stuff after the inferior stops, but we | |
212 | are expected to reenter the proceed() and | |
c378eb4e | 213 | handle_inferior_event() functions. This is used only in case of |
0d06e24b | 214 | 'step n' like commands. */ |
c2d11a7d | 215 | INF_EXEC_CONTINUE |
2acceee2 | 216 | }; |
c906108c | 217 | \f |
13547ab6 DJ |
218 | /* Target objects which can be transfered using target_read, |
219 | target_write, et cetera. */ | |
1e3ff5ad AC |
220 | |
221 | enum target_object | |
222 | { | |
1e3ff5ad AC |
223 | /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */ |
224 | TARGET_OBJECT_AVR, | |
23d964e7 UW |
225 | /* SPU target specific transfer. See "spu-tdep.c". */ |
226 | TARGET_OBJECT_SPU, | |
1e3ff5ad | 227 | /* Transfer up-to LEN bytes of memory starting at OFFSET. */ |
287a334e | 228 | TARGET_OBJECT_MEMORY, |
cf7a04e8 DJ |
229 | /* Memory, avoiding GDB's data cache and trusting the executable. |
230 | Target implementations of to_xfer_partial never need to handle | |
231 | this object, and most callers should not use it. */ | |
232 | TARGET_OBJECT_RAW_MEMORY, | |
4e5d721f DE |
233 | /* Memory known to be part of the target's stack. This is cached even |
234 | if it is not in a region marked as such, since it is known to be | |
235 | "normal" RAM. */ | |
236 | TARGET_OBJECT_STACK_MEMORY, | |
287a334e JJ |
237 | /* Kernel Unwind Table. See "ia64-tdep.c". */ |
238 | TARGET_OBJECT_UNWIND_TABLE, | |
2146d243 RM |
239 | /* Transfer auxilliary vector. */ |
240 | TARGET_OBJECT_AUXV, | |
baf92889 | 241 | /* StackGhost cookie. See "sparc-tdep.c". */ |
fd79ecee DJ |
242 | TARGET_OBJECT_WCOOKIE, |
243 | /* Target memory map in XML format. */ | |
244 | TARGET_OBJECT_MEMORY_MAP, | |
a76d924d DJ |
245 | /* Flash memory. This object can be used to write contents to |
246 | a previously erased flash memory. Using it without erasing | |
247 | flash can have unexpected results. Addresses are physical | |
248 | address on target, and not relative to flash start. */ | |
23181151 DJ |
249 | TARGET_OBJECT_FLASH, |
250 | /* Available target-specific features, e.g. registers and coprocessors. | |
251 | See "target-descriptions.c". ANNEX should never be empty. */ | |
cfa9d6d9 DJ |
252 | TARGET_OBJECT_AVAILABLE_FEATURES, |
253 | /* Currently loaded libraries, in XML format. */ | |
07e059b5 VP |
254 | TARGET_OBJECT_LIBRARIES, |
255 | /* Get OS specific data. The ANNEX specifies the type (running | |
113a6f1e JB |
256 | processes, etc.). The data being transfered is expected to follow |
257 | the DTD specified in features/osdata.dtd. */ | |
4aa995e1 PA |
258 | TARGET_OBJECT_OSDATA, |
259 | /* Extra signal info. Usually the contents of `siginfo_t' on unix | |
260 | platforms. */ | |
261 | TARGET_OBJECT_SIGNAL_INFO, | |
dc146f7c VP |
262 | /* The list of threads that are being debugged. */ |
263 | TARGET_OBJECT_THREADS, | |
0fb4aa4b PA |
264 | /* Collected static trace data. */ |
265 | TARGET_OBJECT_STATIC_TRACE_DATA, | |
77ca787b JB |
266 | /* The HP-UX registers (those that can be obtained or modified by using |
267 | the TT_LWP_RUREGS/TT_LWP_WUREGS ttrace requests). */ | |
268 | TARGET_OBJECT_HPUX_UREGS, | |
c4de7027 JB |
269 | /* The HP-UX shared library linkage pointer. ANNEX should be a string |
270 | image of the code address whose linkage pointer we are looking for. | |
271 | ||
272 | The size of the data transfered is always 8 bytes (the size of an | |
273 | address on ia64). */ | |
274 | TARGET_OBJECT_HPUX_SOLIB_GOT, | |
b3b9301e PA |
275 | /* Traceframe info, in XML format. */ |
276 | TARGET_OBJECT_TRACEFRAME_INFO, | |
78d85199 YQ |
277 | /* Load maps for FDPIC systems. */ |
278 | TARGET_OBJECT_FDPIC, | |
c378eb4e | 279 | /* Possible future objects: TARGET_OBJECT_FILE, ... */ |
1e3ff5ad AC |
280 | }; |
281 | ||
35b1e5cc SS |
282 | /* Enumeration of the kinds of traceframe searches that a target may |
283 | be able to perform. */ | |
284 | ||
285 | enum trace_find_type | |
286 | { | |
287 | tfind_number, | |
288 | tfind_pc, | |
289 | tfind_tp, | |
290 | tfind_range, | |
291 | tfind_outside, | |
292 | }; | |
293 | ||
0fb4aa4b PA |
294 | typedef struct static_tracepoint_marker *static_tracepoint_marker_p; |
295 | DEF_VEC_P(static_tracepoint_marker_p); | |
296 | ||
13547ab6 DJ |
297 | /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
298 | OBJECT. The OFFSET, for a seekable object, specifies the | |
299 | starting point. The ANNEX can be used to provide additional | |
300 | data-specific information to the target. | |
1e3ff5ad | 301 | |
13547ab6 DJ |
302 | Return the number of bytes actually transfered, or -1 if the |
303 | transfer is not supported or otherwise fails. Return of a positive | |
304 | value less than LEN indicates that no further transfer is possible. | |
305 | Unlike the raw to_xfer_partial interface, callers of these | |
306 | functions do not need to retry partial transfers. */ | |
1e3ff5ad | 307 | |
1e3ff5ad AC |
308 | extern LONGEST target_read (struct target_ops *ops, |
309 | enum target_object object, | |
1b0ba102 | 310 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
311 | ULONGEST offset, LONGEST len); |
312 | ||
8dedea02 VP |
313 | struct memory_read_result |
314 | { | |
c378eb4e | 315 | /* First address that was read. */ |
8dedea02 VP |
316 | ULONGEST begin; |
317 | /* Past-the-end address. */ | |
318 | ULONGEST end; | |
319 | /* The data. */ | |
320 | gdb_byte *data; | |
321 | }; | |
322 | typedef struct memory_read_result memory_read_result_s; | |
323 | DEF_VEC_O(memory_read_result_s); | |
324 | ||
325 | extern void free_memory_read_result_vector (void *); | |
326 | ||
327 | extern VEC(memory_read_result_s)* read_memory_robust (struct target_ops *ops, | |
328 | ULONGEST offset, | |
329 | LONGEST len); | |
d5086790 | 330 | |
1e3ff5ad AC |
331 | extern LONGEST target_write (struct target_ops *ops, |
332 | enum target_object object, | |
1b0ba102 | 333 | const char *annex, const gdb_byte *buf, |
1e3ff5ad | 334 | ULONGEST offset, LONGEST len); |
b6591e8b | 335 | |
a76d924d DJ |
336 | /* Similar to target_write, except that it also calls PROGRESS with |
337 | the number of bytes written and the opaque BATON after every | |
338 | successful partial write (and before the first write). This is | |
339 | useful for progress reporting and user interaction while writing | |
340 | data. To abort the transfer, the progress callback can throw an | |
341 | exception. */ | |
342 | ||
cf7a04e8 DJ |
343 | LONGEST target_write_with_progress (struct target_ops *ops, |
344 | enum target_object object, | |
345 | const char *annex, const gdb_byte *buf, | |
346 | ULONGEST offset, LONGEST len, | |
347 | void (*progress) (ULONGEST, void *), | |
348 | void *baton); | |
349 | ||
13547ab6 DJ |
350 | /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will |
351 | be read using OPS. The return value will be -1 if the transfer | |
352 | fails or is not supported; 0 if the object is empty; or the length | |
353 | of the object otherwise. If a positive value is returned, a | |
354 | sufficiently large buffer will be allocated using xmalloc and | |
355 | returned in *BUF_P containing the contents of the object. | |
356 | ||
357 | This method should be used for objects sufficiently small to store | |
358 | in a single xmalloc'd buffer, when no fixed bound on the object's | |
359 | size is known in advance. Don't try to read TARGET_OBJECT_MEMORY | |
360 | through this function. */ | |
361 | ||
362 | extern LONGEST target_read_alloc (struct target_ops *ops, | |
363 | enum target_object object, | |
364 | const char *annex, gdb_byte **buf_p); | |
365 | ||
159f81f3 DJ |
366 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and |
367 | returned as a string, allocated using xmalloc. If an error occurs | |
368 | or the transfer is unsupported, NULL is returned. Empty objects | |
369 | are returned as allocated but empty strings. A warning is issued | |
370 | if the result contains any embedded NUL bytes. */ | |
371 | ||
372 | extern char *target_read_stralloc (struct target_ops *ops, | |
373 | enum target_object object, | |
374 | const char *annex); | |
375 | ||
b6591e8b AC |
376 | /* Wrappers to target read/write that perform memory transfers. They |
377 | throw an error if the memory transfer fails. | |
378 | ||
379 | NOTE: cagney/2003-10-23: The naming schema is lifted from | |
380 | "frame.h". The parameter order is lifted from get_frame_memory, | |
381 | which in turn lifted it from read_memory. */ | |
382 | ||
383 | extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr, | |
1b0ba102 | 384 | gdb_byte *buf, LONGEST len); |
b6591e8b | 385 | extern ULONGEST get_target_memory_unsigned (struct target_ops *ops, |
e17a4113 UW |
386 | CORE_ADDR addr, int len, |
387 | enum bfd_endian byte_order); | |
1e3ff5ad | 388 | \f |
0d06e24b JM |
389 | struct thread_info; /* fwd decl for parameter list below: */ |
390 | ||
c906108c | 391 | struct target_ops |
c5aa993b | 392 | { |
258b763a | 393 | struct target_ops *beneath; /* To the target under this one. */ |
c5aa993b JM |
394 | char *to_shortname; /* Name this target type */ |
395 | char *to_longname; /* Name for printing */ | |
396 | char *to_doc; /* Documentation. Does not include trailing | |
c906108c | 397 | newline, and starts with a one-line descrip- |
0d06e24b | 398 | tion (probably similar to to_longname). */ |
bba2d28d AC |
399 | /* Per-target scratch pad. */ |
400 | void *to_data; | |
f1c07ab0 AC |
401 | /* The open routine takes the rest of the parameters from the |
402 | command, and (if successful) pushes a new target onto the | |
403 | stack. Targets should supply this routine, if only to provide | |
404 | an error message. */ | |
507f3c78 | 405 | void (*to_open) (char *, int); |
f1c07ab0 AC |
406 | /* Old targets with a static target vector provide "to_close". |
407 | New re-entrant targets provide "to_xclose" and that is expected | |
408 | to xfree everything (including the "struct target_ops"). */ | |
409 | void (*to_xclose) (struct target_ops *targ, int quitting); | |
507f3c78 | 410 | void (*to_close) (int); |
136d6dae | 411 | void (*to_attach) (struct target_ops *ops, char *, int); |
507f3c78 | 412 | void (*to_post_attach) (int); |
136d6dae | 413 | void (*to_detach) (struct target_ops *ops, char *, int); |
597320e7 | 414 | void (*to_disconnect) (struct target_ops *, char *, int); |
28439f5e | 415 | void (*to_resume) (struct target_ops *, ptid_t, int, enum target_signal); |
117de6a9 | 416 | ptid_t (*to_wait) (struct target_ops *, |
47608cb1 | 417 | ptid_t, struct target_waitstatus *, int); |
28439f5e PA |
418 | void (*to_fetch_registers) (struct target_ops *, struct regcache *, int); |
419 | void (*to_store_registers) (struct target_ops *, struct regcache *, int); | |
316f2060 | 420 | void (*to_prepare_to_store) (struct regcache *); |
c5aa993b JM |
421 | |
422 | /* Transfer LEN bytes of memory between GDB address MYADDR and | |
423 | target address MEMADDR. If WRITE, transfer them to the target, else | |
424 | transfer them from the target. TARGET is the target from which we | |
425 | get this function. | |
426 | ||
427 | Return value, N, is one of the following: | |
428 | ||
429 | 0 means that we can't handle this. If errno has been set, it is the | |
430 | error which prevented us from doing it (FIXME: What about bfd_error?). | |
431 | ||
432 | positive (call it N) means that we have transferred N bytes | |
433 | starting at MEMADDR. We might be able to handle more bytes | |
434 | beyond this length, but no promises. | |
435 | ||
436 | negative (call its absolute value N) means that we cannot | |
437 | transfer right at MEMADDR, but we could transfer at least | |
c8e73a31 | 438 | something at MEMADDR + N. |
c5aa993b | 439 | |
c8e73a31 AC |
440 | NOTE: cagney/2004-10-01: This has been entirely superseeded by |
441 | to_xfer_partial and inferior inheritance. */ | |
442 | ||
1b0ba102 | 443 | int (*deprecated_xfer_memory) (CORE_ADDR memaddr, gdb_byte *myaddr, |
c8e73a31 AC |
444 | int len, int write, |
445 | struct mem_attrib *attrib, | |
446 | struct target_ops *target); | |
c906108c | 447 | |
507f3c78 | 448 | void (*to_files_info) (struct target_ops *); |
a6d9a66e UW |
449 | int (*to_insert_breakpoint) (struct gdbarch *, struct bp_target_info *); |
450 | int (*to_remove_breakpoint) (struct gdbarch *, struct bp_target_info *); | |
ccaa32c7 | 451 | int (*to_can_use_hw_breakpoint) (int, int, int); |
f1310107 | 452 | int (*to_ranged_break_num_registers) (struct target_ops *); |
a6d9a66e UW |
453 | int (*to_insert_hw_breakpoint) (struct gdbarch *, struct bp_target_info *); |
454 | int (*to_remove_hw_breakpoint) (struct gdbarch *, struct bp_target_info *); | |
0cf6dd15 TJB |
455 | |
456 | /* Documentation of what the two routines below are expected to do is | |
457 | provided with the corresponding target_* macros. */ | |
458 | int (*to_remove_watchpoint) (CORE_ADDR, int, int, struct expression *); | |
459 | int (*to_insert_watchpoint) (CORE_ADDR, int, int, struct expression *); | |
460 | ||
9c06b0b4 TJB |
461 | int (*to_insert_mask_watchpoint) (struct target_ops *, |
462 | CORE_ADDR, CORE_ADDR, int); | |
463 | int (*to_remove_mask_watchpoint) (struct target_ops *, | |
464 | CORE_ADDR, CORE_ADDR, int); | |
ccaa32c7 | 465 | int (*to_stopped_by_watchpoint) (void); |
74174d2e | 466 | int to_have_steppable_watchpoint; |
7df1a324 | 467 | int to_have_continuable_watchpoint; |
4aa7a7f5 | 468 | int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *); |
5009afc5 AS |
469 | int (*to_watchpoint_addr_within_range) (struct target_ops *, |
470 | CORE_ADDR, CORE_ADDR, int); | |
e09342b5 TJB |
471 | |
472 | /* Documentation of this routine is provided with the corresponding | |
473 | target_* macro. */ | |
e0d24f8d | 474 | int (*to_region_ok_for_hw_watchpoint) (CORE_ADDR, int); |
e09342b5 | 475 | |
0cf6dd15 TJB |
476 | int (*to_can_accel_watchpoint_condition) (CORE_ADDR, int, int, |
477 | struct expression *); | |
9c06b0b4 TJB |
478 | int (*to_masked_watch_num_registers) (struct target_ops *, |
479 | CORE_ADDR, CORE_ADDR); | |
507f3c78 KB |
480 | void (*to_terminal_init) (void); |
481 | void (*to_terminal_inferior) (void); | |
482 | void (*to_terminal_ours_for_output) (void); | |
483 | void (*to_terminal_ours) (void); | |
a790ad35 | 484 | void (*to_terminal_save_ours) (void); |
507f3c78 | 485 | void (*to_terminal_info) (char *, int); |
7d85a9c0 | 486 | void (*to_kill) (struct target_ops *); |
507f3c78 | 487 | void (*to_load) (char *, int); |
136d6dae VP |
488 | void (*to_create_inferior) (struct target_ops *, |
489 | char *, char *, char **, int); | |
39f77062 | 490 | void (*to_post_startup_inferior) (ptid_t); |
77b06cd7 | 491 | int (*to_insert_fork_catchpoint) (int); |
507f3c78 | 492 | int (*to_remove_fork_catchpoint) (int); |
77b06cd7 | 493 | int (*to_insert_vfork_catchpoint) (int); |
507f3c78 | 494 | int (*to_remove_vfork_catchpoint) (int); |
ee057212 | 495 | int (*to_follow_fork) (struct target_ops *, int); |
77b06cd7 | 496 | int (*to_insert_exec_catchpoint) (int); |
507f3c78 | 497 | int (*to_remove_exec_catchpoint) (int); |
a96d9b2e | 498 | int (*to_set_syscall_catchpoint) (int, int, int, int, int *); |
507f3c78 | 499 | int (*to_has_exited) (int, int, int *); |
136d6dae | 500 | void (*to_mourn_inferior) (struct target_ops *); |
507f3c78 | 501 | int (*to_can_run) (void); |
2455069d UW |
502 | |
503 | /* Documentation of this routine is provided with the corresponding | |
504 | target_* macro. */ | |
505 | void (*to_pass_signals) (int, unsigned char *); | |
506 | ||
28439f5e PA |
507 | int (*to_thread_alive) (struct target_ops *, ptid_t ptid); |
508 | void (*to_find_new_threads) (struct target_ops *); | |
117de6a9 | 509 | char *(*to_pid_to_str) (struct target_ops *, ptid_t); |
507f3c78 | 510 | char *(*to_extra_thread_info) (struct thread_info *); |
4694da01 | 511 | char *(*to_thread_name) (struct thread_info *); |
94cc34af | 512 | void (*to_stop) (ptid_t); |
d9fcf2fb | 513 | void (*to_rcmd) (char *command, struct ui_file *output); |
507f3c78 | 514 | char *(*to_pid_to_exec_file) (int pid); |
49d03eab | 515 | void (*to_log_command) (const char *); |
07b82ea5 | 516 | struct target_section_table *(*to_get_section_table) (struct target_ops *); |
c5aa993b | 517 | enum strata to_stratum; |
c35b1492 PA |
518 | int (*to_has_all_memory) (struct target_ops *); |
519 | int (*to_has_memory) (struct target_ops *); | |
520 | int (*to_has_stack) (struct target_ops *); | |
521 | int (*to_has_registers) (struct target_ops *); | |
aeaec162 | 522 | int (*to_has_execution) (struct target_ops *, ptid_t); |
c5aa993b | 523 | int to_has_thread_control; /* control thread execution */ |
dc177b7a | 524 | int to_attach_no_wait; |
6426a772 JM |
525 | /* ASYNC target controls */ |
526 | int (*to_can_async_p) (void); | |
527 | int (*to_is_async_p) (void); | |
b84876c2 | 528 | void (*to_async) (void (*) (enum inferior_event_type, void *), void *); |
9908b566 | 529 | int (*to_supports_non_stop) (void); |
6b04bdb7 | 530 | /* find_memory_regions support method for gcore */ |
b8edc417 | 531 | int (*to_find_memory_regions) (find_memory_region_ftype func, void *data); |
6b04bdb7 | 532 | /* make_corefile_notes support method for gcore */ |
be4d1333 | 533 | char * (*to_make_corefile_notes) (bfd *, int *); |
6b04bdb7 MS |
534 | /* get_bookmark support method for bookmarks */ |
535 | gdb_byte * (*to_get_bookmark) (char *, int); | |
536 | /* goto_bookmark support method for bookmarks */ | |
537 | void (*to_goto_bookmark) (gdb_byte *, int); | |
3f47be5c EZ |
538 | /* Return the thread-local address at OFFSET in the |
539 | thread-local storage for the thread PTID and the shared library | |
540 | or executable file given by OBJFILE. If that block of | |
541 | thread-local storage hasn't been allocated yet, this function | |
542 | may return an error. */ | |
117de6a9 PA |
543 | CORE_ADDR (*to_get_thread_local_address) (struct target_ops *ops, |
544 | ptid_t ptid, | |
b2756930 | 545 | CORE_ADDR load_module_addr, |
3f47be5c EZ |
546 | CORE_ADDR offset); |
547 | ||
13547ab6 DJ |
548 | /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
549 | OBJECT. The OFFSET, for a seekable object, specifies the | |
550 | starting point. The ANNEX can be used to provide additional | |
551 | data-specific information to the target. | |
552 | ||
553 | Return the number of bytes actually transfered, zero when no | |
554 | further transfer is possible, and -1 when the transfer is not | |
555 | supported. Return of a positive value smaller than LEN does | |
556 | not indicate the end of the object, only the end of the | |
557 | transfer; higher level code should continue transferring if | |
558 | desired. This is handled in target.c. | |
559 | ||
560 | The interface does not support a "retry" mechanism. Instead it | |
561 | assumes that at least one byte will be transfered on each | |
562 | successful call. | |
563 | ||
564 | NOTE: cagney/2003-10-17: The current interface can lead to | |
565 | fragmented transfers. Lower target levels should not implement | |
566 | hacks, such as enlarging the transfer, in an attempt to | |
567 | compensate for this. Instead, the target stack should be | |
568 | extended so that it implements supply/collect methods and a | |
569 | look-aside object cache. With that available, the lowest | |
570 | target can safely and freely "push" data up the stack. | |
571 | ||
572 | See target_read and target_write for more information. One, | |
573 | and only one, of readbuf or writebuf must be non-NULL. */ | |
574 | ||
4b8a223f | 575 | LONGEST (*to_xfer_partial) (struct target_ops *ops, |
8aa91c1e | 576 | enum target_object object, const char *annex, |
1b0ba102 | 577 | gdb_byte *readbuf, const gdb_byte *writebuf, |
8aa91c1e | 578 | ULONGEST offset, LONGEST len); |
1e3ff5ad | 579 | |
fd79ecee DJ |
580 | /* Returns the memory map for the target. A return value of NULL |
581 | means that no memory map is available. If a memory address | |
582 | does not fall within any returned regions, it's assumed to be | |
583 | RAM. The returned memory regions should not overlap. | |
584 | ||
585 | The order of regions does not matter; target_memory_map will | |
c378eb4e | 586 | sort regions by starting address. For that reason, this |
fd79ecee DJ |
587 | function should not be called directly except via |
588 | target_memory_map. | |
589 | ||
590 | This method should not cache data; if the memory map could | |
591 | change unexpectedly, it should be invalidated, and higher | |
592 | layers will re-fetch it. */ | |
593 | VEC(mem_region_s) *(*to_memory_map) (struct target_ops *); | |
594 | ||
a76d924d DJ |
595 | /* Erases the region of flash memory starting at ADDRESS, of |
596 | length LENGTH. | |
597 | ||
598 | Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned | |
599 | on flash block boundaries, as reported by 'to_memory_map'. */ | |
600 | void (*to_flash_erase) (struct target_ops *, | |
601 | ULONGEST address, LONGEST length); | |
602 | ||
603 | /* Finishes a flash memory write sequence. After this operation | |
604 | all flash memory should be available for writing and the result | |
605 | of reading from areas written by 'to_flash_write' should be | |
606 | equal to what was written. */ | |
607 | void (*to_flash_done) (struct target_ops *); | |
608 | ||
424163ea DJ |
609 | /* Describe the architecture-specific features of this target. |
610 | Returns the description found, or NULL if no description | |
611 | was available. */ | |
612 | const struct target_desc *(*to_read_description) (struct target_ops *ops); | |
613 | ||
0ef643c8 JB |
614 | /* Build the PTID of the thread on which a given task is running, |
615 | based on LWP and THREAD. These values are extracted from the | |
616 | task Private_Data section of the Ada Task Control Block, and | |
617 | their interpretation depends on the target. */ | |
618 | ptid_t (*to_get_ada_task_ptid) (long lwp, long thread); | |
619 | ||
c47ffbe3 VP |
620 | /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
621 | Return 0 if *READPTR is already at the end of the buffer. | |
622 | Return -1 if there is insufficient buffer for a whole entry. | |
623 | Return 1 if an entry was read into *TYPEP and *VALP. */ | |
624 | int (*to_auxv_parse) (struct target_ops *ops, gdb_byte **readptr, | |
625 | gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp); | |
626 | ||
08388c79 DE |
627 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
628 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
629 | ||
630 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
631 | requiring halting of the search (e.g. memory read error). | |
632 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
633 | int (*to_search_memory) (struct target_ops *ops, | |
634 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
635 | const gdb_byte *pattern, ULONGEST pattern_len, | |
636 | CORE_ADDR *found_addrp); | |
637 | ||
b2175913 | 638 | /* Can target execute in reverse? */ |
2c0b251b | 639 | int (*to_can_execute_reverse) (void); |
b2175913 | 640 | |
32231432 PA |
641 | /* The direction the target is currently executing. Must be |
642 | implemented on targets that support reverse execution and async | |
643 | mode. The default simply returns forward execution. */ | |
644 | enum exec_direction_kind (*to_execution_direction) (void); | |
645 | ||
8a305172 PA |
646 | /* Does this target support debugging multiple processes |
647 | simultaneously? */ | |
648 | int (*to_supports_multi_process) (void); | |
649 | ||
d248b706 KY |
650 | /* Does this target support enabling and disabling tracepoints while a trace |
651 | experiment is running? */ | |
652 | int (*to_supports_enable_disable_tracepoint) (void); | |
653 | ||
3a8f7b07 JK |
654 | /* Determine current architecture of thread PTID. |
655 | ||
656 | The target is supposed to determine the architecture of the code where | |
657 | the target is currently stopped at (on Cell, if a target is in spu_run, | |
658 | to_thread_architecture would return SPU, otherwise PPC32 or PPC64). | |
659 | This is architecture used to perform decr_pc_after_break adjustment, | |
660 | and also determines the frame architecture of the innermost frame. | |
661 | ptrace operations need to operate according to target_gdbarch. | |
662 | ||
663 | The default implementation always returns target_gdbarch. */ | |
c2250ad1 UW |
664 | struct gdbarch *(*to_thread_architecture) (struct target_ops *, ptid_t); |
665 | ||
c0694254 PA |
666 | /* Determine current address space of thread PTID. |
667 | ||
668 | The default implementation always returns the inferior's | |
669 | address space. */ | |
670 | struct address_space *(*to_thread_address_space) (struct target_ops *, | |
671 | ptid_t); | |
672 | ||
35b1e5cc SS |
673 | /* Tracepoint-related operations. */ |
674 | ||
675 | /* Prepare the target for a tracing run. */ | |
676 | void (*to_trace_init) (void); | |
677 | ||
678 | /* Send full details of a tracepoint to the target. */ | |
679 | void (*to_download_tracepoint) (struct breakpoint *t); | |
680 | ||
681 | /* Send full details of a trace state variable to the target. */ | |
682 | void (*to_download_trace_state_variable) (struct trace_state_variable *tsv); | |
683 | ||
d248b706 KY |
684 | /* Enable a tracepoint on the target. */ |
685 | void (*to_enable_tracepoint) (struct bp_location *location); | |
686 | ||
687 | /* Disable a tracepoint on the target. */ | |
688 | void (*to_disable_tracepoint) (struct bp_location *location); | |
689 | ||
35b1e5cc SS |
690 | /* Inform the target info of memory regions that are readonly |
691 | (such as text sections), and so it should return data from | |
692 | those rather than look in the trace buffer. */ | |
693 | void (*to_trace_set_readonly_regions) (void); | |
694 | ||
695 | /* Start a trace run. */ | |
696 | void (*to_trace_start) (void); | |
697 | ||
698 | /* Get the current status of a tracing run. */ | |
00bf0b85 | 699 | int (*to_get_trace_status) (struct trace_status *ts); |
35b1e5cc SS |
700 | |
701 | /* Stop a trace run. */ | |
702 | void (*to_trace_stop) (void); | |
703 | ||
704 | /* Ask the target to find a trace frame of the given type TYPE, | |
705 | using NUM, ADDR1, and ADDR2 as search parameters. Returns the | |
706 | number of the trace frame, and also the tracepoint number at | |
c378eb4e | 707 | TPP. If no trace frame matches, return -1. May throw if the |
f197e0f1 | 708 | operation fails. */ |
35b1e5cc SS |
709 | int (*to_trace_find) (enum trace_find_type type, int num, |
710 | ULONGEST addr1, ULONGEST addr2, int *tpp); | |
711 | ||
712 | /* Get the value of the trace state variable number TSV, returning | |
713 | 1 if the value is known and writing the value itself into the | |
714 | location pointed to by VAL, else returning 0. */ | |
715 | int (*to_get_trace_state_variable_value) (int tsv, LONGEST *val); | |
716 | ||
011aacb0 | 717 | int (*to_save_trace_data) (const char *filename); |
00bf0b85 SS |
718 | |
719 | int (*to_upload_tracepoints) (struct uploaded_tp **utpp); | |
720 | ||
721 | int (*to_upload_trace_state_variables) (struct uploaded_tsv **utsvp); | |
722 | ||
723 | LONGEST (*to_get_raw_trace_data) (gdb_byte *buf, | |
724 | ULONGEST offset, LONGEST len); | |
725 | ||
35b1e5cc SS |
726 | /* Set the target's tracing behavior in response to unexpected |
727 | disconnection - set VAL to 1 to keep tracing, 0 to stop. */ | |
728 | void (*to_set_disconnected_tracing) (int val); | |
4daf5ac0 | 729 | void (*to_set_circular_trace_buffer) (int val); |
35b1e5cc | 730 | |
dc146f7c VP |
731 | /* Return the processor core that thread PTID was last seen on. |
732 | This information is updated only when: | |
733 | - update_thread_list is called | |
734 | - thread stops | |
3e43a32a MS |
735 | If the core cannot be determined -- either for the specified |
736 | thread, or right now, or in this debug session, or for this | |
737 | target -- return -1. */ | |
dc146f7c VP |
738 | int (*to_core_of_thread) (struct target_ops *, ptid_t ptid); |
739 | ||
4a5e7a5b PA |
740 | /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range |
741 | matches the contents of [DATA,DATA+SIZE). Returns 1 if there's | |
742 | a match, 0 if there's a mismatch, and -1 if an error is | |
743 | encountered while reading memory. */ | |
744 | int (*to_verify_memory) (struct target_ops *, const gdb_byte *data, | |
745 | CORE_ADDR memaddr, ULONGEST size); | |
746 | ||
711e434b PM |
747 | /* Return the address of the start of the Thread Information Block |
748 | a Windows OS specific feature. */ | |
749 | int (*to_get_tib_address) (ptid_t ptid, CORE_ADDR *addr); | |
750 | ||
d914c394 SS |
751 | /* Send the new settings of write permission variables. */ |
752 | void (*to_set_permissions) (void); | |
753 | ||
0fb4aa4b PA |
754 | /* Look for a static tracepoint marker at ADDR, and fill in MARKER |
755 | with its details. Return 1 on success, 0 on failure. */ | |
756 | int (*to_static_tracepoint_marker_at) (CORE_ADDR, | |
757 | struct static_tracepoint_marker *marker); | |
758 | ||
759 | /* Return a vector of all tracepoints markers string id ID, or all | |
760 | markers if ID is NULL. */ | |
761 | VEC(static_tracepoint_marker_p) *(*to_static_tracepoint_markers_by_strid) | |
762 | (const char *id); | |
763 | ||
b3b9301e PA |
764 | /* Return a traceframe info object describing the current |
765 | traceframe's contents. This method should not cache data; | |
766 | higher layers take care of caching, invalidating, and | |
767 | re-fetching when necessary. */ | |
768 | struct traceframe_info *(*to_traceframe_info) (void); | |
769 | ||
c5aa993b | 770 | int to_magic; |
0d06e24b JM |
771 | /* Need sub-structure for target machine related rather than comm related? |
772 | */ | |
c5aa993b | 773 | }; |
c906108c SS |
774 | |
775 | /* Magic number for checking ops size. If a struct doesn't end with this | |
776 | number, somebody changed the declaration but didn't change all the | |
777 | places that initialize one. */ | |
778 | ||
779 | #define OPS_MAGIC 3840 | |
780 | ||
781 | /* The ops structure for our "current" target process. This should | |
782 | never be NULL. If there is no target, it points to the dummy_target. */ | |
783 | ||
c5aa993b | 784 | extern struct target_ops current_target; |
c906108c | 785 | |
c906108c SS |
786 | /* Define easy words for doing these operations on our current target. */ |
787 | ||
788 | #define target_shortname (current_target.to_shortname) | |
789 | #define target_longname (current_target.to_longname) | |
790 | ||
f1c07ab0 AC |
791 | /* Does whatever cleanup is required for a target that we are no |
792 | longer going to be calling. QUITTING indicates that GDB is exiting | |
793 | and should not get hung on an error (otherwise it is important to | |
794 | perform clean termination, even if it takes a while). This routine | |
795 | is automatically always called when popping the target off the | |
796 | target stack (to_beneath is undefined). Closing file descriptors | |
797 | and freeing all memory allocated memory are typical things it | |
798 | should do. */ | |
799 | ||
800 | void target_close (struct target_ops *targ, int quitting); | |
c906108c SS |
801 | |
802 | /* Attaches to a process on the target side. Arguments are as passed | |
803 | to the `attach' command by the user. This routine can be called | |
804 | when the target is not on the target-stack, if the target_can_run | |
2146d243 | 805 | routine returns 1; in that case, it must push itself onto the stack. |
c906108c | 806 | Upon exit, the target should be ready for normal operations, and |
2146d243 | 807 | should be ready to deliver the status of the process immediately |
c906108c SS |
808 | (without waiting) to an upcoming target_wait call. */ |
809 | ||
136d6dae | 810 | void target_attach (char *, int); |
c906108c | 811 | |
dc177b7a PA |
812 | /* Some targets don't generate traps when attaching to the inferior, |
813 | or their target_attach implementation takes care of the waiting. | |
814 | These targets must set to_attach_no_wait. */ | |
815 | ||
816 | #define target_attach_no_wait \ | |
817 | (current_target.to_attach_no_wait) | |
818 | ||
c906108c SS |
819 | /* The target_attach operation places a process under debugger control, |
820 | and stops the process. | |
821 | ||
822 | This operation provides a target-specific hook that allows the | |
0d06e24b | 823 | necessary bookkeeping to be performed after an attach completes. */ |
c906108c | 824 | #define target_post_attach(pid) \ |
0d06e24b | 825 | (*current_target.to_post_attach) (pid) |
c906108c | 826 | |
c906108c SS |
827 | /* Takes a program previously attached to and detaches it. |
828 | The program may resume execution (some targets do, some don't) and will | |
829 | no longer stop on signals, etc. We better not have left any breakpoints | |
830 | in the program or it'll die when it hits one. ARGS is arguments | |
831 | typed by the user (e.g. a signal to send the process). FROM_TTY | |
832 | says whether to be verbose or not. */ | |
833 | ||
a14ed312 | 834 | extern void target_detach (char *, int); |
c906108c | 835 | |
6ad8ae5c DJ |
836 | /* Disconnect from the current target without resuming it (leaving it |
837 | waiting for a debugger). */ | |
838 | ||
839 | extern void target_disconnect (char *, int); | |
840 | ||
39f77062 | 841 | /* Resume execution of the target process PTID. STEP says whether to |
c906108c SS |
842 | single-step or to run free; SIGGNAL is the signal to be given to |
843 | the target, or TARGET_SIGNAL_0 for no signal. The caller may not | |
844 | pass TARGET_SIGNAL_DEFAULT. */ | |
845 | ||
e1ac3328 | 846 | extern void target_resume (ptid_t ptid, int step, enum target_signal signal); |
c906108c | 847 | |
b5a2688f AC |
848 | /* Wait for process pid to do something. PTID = -1 to wait for any |
849 | pid to do something. Return pid of child, or -1 in case of error; | |
c906108c | 850 | store status through argument pointer STATUS. Note that it is |
b5a2688f | 851 | _NOT_ OK to throw_exception() out of target_wait() without popping |
c906108c SS |
852 | the debugging target from the stack; GDB isn't prepared to get back |
853 | to the prompt with a debugging target but without the frame cache, | |
47608cb1 PA |
854 | stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W* |
855 | options. */ | |
c906108c | 856 | |
47608cb1 PA |
857 | extern ptid_t target_wait (ptid_t ptid, struct target_waitstatus *status, |
858 | int options); | |
c906108c | 859 | |
17dee195 | 860 | /* Fetch at least register REGNO, or all regs if regno == -1. No result. */ |
c906108c | 861 | |
28439f5e | 862 | extern void target_fetch_registers (struct regcache *regcache, int regno); |
c906108c SS |
863 | |
864 | /* Store at least register REGNO, or all regs if REGNO == -1. | |
865 | It can store as many registers as it wants to, so target_prepare_to_store | |
866 | must have been previously called. Calls error() if there are problems. */ | |
867 | ||
28439f5e | 868 | extern void target_store_registers (struct regcache *regcache, int regs); |
c906108c SS |
869 | |
870 | /* Get ready to modify the registers array. On machines which store | |
871 | individual registers, this doesn't need to do anything. On machines | |
872 | which store all the registers in one fell swoop, this makes sure | |
873 | that REGISTERS contains all the registers from the program being | |
874 | debugged. */ | |
875 | ||
316f2060 UW |
876 | #define target_prepare_to_store(regcache) \ |
877 | (*current_target.to_prepare_to_store) (regcache) | |
c906108c | 878 | |
6c95b8df PA |
879 | /* Determine current address space of thread PTID. */ |
880 | ||
881 | struct address_space *target_thread_address_space (ptid_t); | |
882 | ||
8a305172 PA |
883 | /* Returns true if this target can debug multiple processes |
884 | simultaneously. */ | |
885 | ||
886 | #define target_supports_multi_process() \ | |
887 | (*current_target.to_supports_multi_process) () | |
888 | ||
d248b706 KY |
889 | /* Returns true if this target can enable and disable tracepoints |
890 | while a trace experiment is running. */ | |
891 | ||
892 | #define target_supports_enable_disable_tracepoint() \ | |
893 | (*current_target.to_supports_enable_disable_tracepoint) () | |
894 | ||
4e5d721f DE |
895 | /* Invalidate all target dcaches. */ |
896 | extern void target_dcache_invalidate (void); | |
4930751a | 897 | |
a14ed312 | 898 | extern int target_read_string (CORE_ADDR, char **, int, int *); |
c906108c | 899 | |
fc1a4b47 | 900 | extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len); |
c906108c | 901 | |
4e5d721f DE |
902 | extern int target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, int len); |
903 | ||
fc1a4b47 | 904 | extern int target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, |
10e2d419 | 905 | int len); |
c906108c | 906 | |
fd79ecee DJ |
907 | /* Fetches the target's memory map. If one is found it is sorted |
908 | and returned, after some consistency checking. Otherwise, NULL | |
909 | is returned. */ | |
910 | VEC(mem_region_s) *target_memory_map (void); | |
911 | ||
a76d924d DJ |
912 | /* Erase the specified flash region. */ |
913 | void target_flash_erase (ULONGEST address, LONGEST length); | |
914 | ||
915 | /* Finish a sequence of flash operations. */ | |
916 | void target_flash_done (void); | |
917 | ||
918 | /* Describes a request for a memory write operation. */ | |
919 | struct memory_write_request | |
920 | { | |
c378eb4e | 921 | /* Begining address that must be written. */ |
a76d924d | 922 | ULONGEST begin; |
c378eb4e | 923 | /* Past-the-end address. */ |
a76d924d | 924 | ULONGEST end; |
c378eb4e | 925 | /* The data to write. */ |
a76d924d DJ |
926 | gdb_byte *data; |
927 | /* A callback baton for progress reporting for this request. */ | |
928 | void *baton; | |
929 | }; | |
930 | typedef struct memory_write_request memory_write_request_s; | |
931 | DEF_VEC_O(memory_write_request_s); | |
932 | ||
933 | /* Enumeration specifying different flash preservation behaviour. */ | |
934 | enum flash_preserve_mode | |
935 | { | |
936 | flash_preserve, | |
937 | flash_discard | |
938 | }; | |
939 | ||
940 | /* Write several memory blocks at once. This version can be more | |
941 | efficient than making several calls to target_write_memory, in | |
942 | particular because it can optimize accesses to flash memory. | |
943 | ||
944 | Moreover, this is currently the only memory access function in gdb | |
945 | that supports writing to flash memory, and it should be used for | |
946 | all cases where access to flash memory is desirable. | |
947 | ||
948 | REQUESTS is the vector (see vec.h) of memory_write_request. | |
949 | PRESERVE_FLASH_P indicates what to do with blocks which must be | |
950 | erased, but not completely rewritten. | |
951 | PROGRESS_CB is a function that will be periodically called to provide | |
952 | feedback to user. It will be called with the baton corresponding | |
953 | to the request currently being written. It may also be called | |
954 | with a NULL baton, when preserved flash sectors are being rewritten. | |
955 | ||
956 | The function returns 0 on success, and error otherwise. */ | |
957 | int target_write_memory_blocks (VEC(memory_write_request_s) *requests, | |
958 | enum flash_preserve_mode preserve_flash_p, | |
959 | void (*progress_cb) (ULONGEST, void *)); | |
960 | ||
47932f85 DJ |
961 | /* From infrun.c. */ |
962 | ||
3a3e9ee3 | 963 | extern int inferior_has_forked (ptid_t pid, ptid_t *child_pid); |
47932f85 | 964 | |
3a3e9ee3 | 965 | extern int inferior_has_vforked (ptid_t pid, ptid_t *child_pid); |
47932f85 | 966 | |
3a3e9ee3 | 967 | extern int inferior_has_execd (ptid_t pid, char **execd_pathname); |
47932f85 | 968 | |
a96d9b2e SDJ |
969 | extern int inferior_has_called_syscall (ptid_t pid, int *syscall_number); |
970 | ||
c906108c SS |
971 | /* Print a line about the current target. */ |
972 | ||
973 | #define target_files_info() \ | |
0d06e24b | 974 | (*current_target.to_files_info) (¤t_target) |
c906108c | 975 | |
8181d85f DJ |
976 | /* Insert a breakpoint at address BP_TGT->placed_address in the target |
977 | machine. Result is 0 for success, or an errno value. */ | |
c906108c | 978 | |
d914c394 SS |
979 | extern int target_insert_breakpoint (struct gdbarch *gdbarch, |
980 | struct bp_target_info *bp_tgt); | |
c906108c | 981 | |
8181d85f DJ |
982 | /* Remove a breakpoint at address BP_TGT->placed_address in the target |
983 | machine. Result is 0 for success, or an errno value. */ | |
c906108c | 984 | |
d914c394 SS |
985 | extern int target_remove_breakpoint (struct gdbarch *gdbarch, |
986 | struct bp_target_info *bp_tgt); | |
c906108c SS |
987 | |
988 | /* Initialize the terminal settings we record for the inferior, | |
989 | before we actually run the inferior. */ | |
990 | ||
991 | #define target_terminal_init() \ | |
0d06e24b | 992 | (*current_target.to_terminal_init) () |
c906108c SS |
993 | |
994 | /* Put the inferior's terminal settings into effect. | |
995 | This is preparation for starting or resuming the inferior. */ | |
996 | ||
d9d2d8b6 | 997 | extern void target_terminal_inferior (void); |
c906108c SS |
998 | |
999 | /* Put some of our terminal settings into effect, | |
1000 | enough to get proper results from our output, | |
1001 | but do not change into or out of RAW mode | |
1002 | so that no input is discarded. | |
1003 | ||
1004 | After doing this, either terminal_ours or terminal_inferior | |
1005 | should be called to get back to a normal state of affairs. */ | |
1006 | ||
1007 | #define target_terminal_ours_for_output() \ | |
0d06e24b | 1008 | (*current_target.to_terminal_ours_for_output) () |
c906108c SS |
1009 | |
1010 | /* Put our terminal settings into effect. | |
1011 | First record the inferior's terminal settings | |
1012 | so they can be restored properly later. */ | |
1013 | ||
1014 | #define target_terminal_ours() \ | |
0d06e24b | 1015 | (*current_target.to_terminal_ours) () |
c906108c | 1016 | |
a790ad35 SC |
1017 | /* Save our terminal settings. |
1018 | This is called from TUI after entering or leaving the curses | |
1019 | mode. Since curses modifies our terminal this call is here | |
1020 | to take this change into account. */ | |
1021 | ||
1022 | #define target_terminal_save_ours() \ | |
1023 | (*current_target.to_terminal_save_ours) () | |
1024 | ||
c906108c SS |
1025 | /* Print useful information about our terminal status, if such a thing |
1026 | exists. */ | |
1027 | ||
1028 | #define target_terminal_info(arg, from_tty) \ | |
0d06e24b | 1029 | (*current_target.to_terminal_info) (arg, from_tty) |
c906108c SS |
1030 | |
1031 | /* Kill the inferior process. Make it go away. */ | |
1032 | ||
7d85a9c0 | 1033 | extern void target_kill (void); |
c906108c | 1034 | |
0d06e24b JM |
1035 | /* Load an executable file into the target process. This is expected |
1036 | to not only bring new code into the target process, but also to | |
1986bccd AS |
1037 | update GDB's symbol tables to match. |
1038 | ||
1039 | ARG contains command-line arguments, to be broken down with | |
1040 | buildargv (). The first non-switch argument is the filename to | |
1041 | load, FILE; the second is a number (as parsed by strtoul (..., ..., | |
1042 | 0)), which is an offset to apply to the load addresses of FILE's | |
1043 | sections. The target may define switches, or other non-switch | |
1044 | arguments, as it pleases. */ | |
c906108c | 1045 | |
11cf8741 | 1046 | extern void target_load (char *arg, int from_tty); |
c906108c | 1047 | |
39f77062 | 1048 | /* Start an inferior process and set inferior_ptid to its pid. |
c906108c SS |
1049 | EXEC_FILE is the file to run. |
1050 | ALLARGS is a string containing the arguments to the program. | |
1051 | ENV is the environment vector to pass. Errors reported with error(). | |
1052 | On VxWorks and various standalone systems, we ignore exec_file. */ | |
c5aa993b | 1053 | |
136d6dae VP |
1054 | void target_create_inferior (char *exec_file, char *args, |
1055 | char **env, int from_tty); | |
c906108c SS |
1056 | |
1057 | /* Some targets (such as ttrace-based HPUX) don't allow us to request | |
1058 | notification of inferior events such as fork and vork immediately | |
1059 | after the inferior is created. (This because of how gdb gets an | |
1060 | inferior created via invoking a shell to do it. In such a scenario, | |
1061 | if the shell init file has commands in it, the shell will fork and | |
1062 | exec for each of those commands, and we will see each such fork | |
1063 | event. Very bad.) | |
c5aa993b | 1064 | |
0d06e24b JM |
1065 | Such targets will supply an appropriate definition for this function. */ |
1066 | ||
39f77062 KB |
1067 | #define target_post_startup_inferior(ptid) \ |
1068 | (*current_target.to_post_startup_inferior) (ptid) | |
c906108c | 1069 | |
0d06e24b JM |
1070 | /* On some targets, we can catch an inferior fork or vfork event when |
1071 | it occurs. These functions insert/remove an already-created | |
77b06cd7 TJB |
1072 | catchpoint for such events. They return 0 for success, 1 if the |
1073 | catchpoint type is not supported and -1 for failure. */ | |
c906108c | 1074 | |
c906108c | 1075 | #define target_insert_fork_catchpoint(pid) \ |
0d06e24b | 1076 | (*current_target.to_insert_fork_catchpoint) (pid) |
c906108c SS |
1077 | |
1078 | #define target_remove_fork_catchpoint(pid) \ | |
0d06e24b | 1079 | (*current_target.to_remove_fork_catchpoint) (pid) |
c906108c SS |
1080 | |
1081 | #define target_insert_vfork_catchpoint(pid) \ | |
0d06e24b | 1082 | (*current_target.to_insert_vfork_catchpoint) (pid) |
c906108c SS |
1083 | |
1084 | #define target_remove_vfork_catchpoint(pid) \ | |
0d06e24b | 1085 | (*current_target.to_remove_vfork_catchpoint) (pid) |
c906108c | 1086 | |
6604731b DJ |
1087 | /* If the inferior forks or vforks, this function will be called at |
1088 | the next resume in order to perform any bookkeeping and fiddling | |
1089 | necessary to continue debugging either the parent or child, as | |
1090 | requested, and releasing the other. Information about the fork | |
1091 | or vfork event is available via get_last_target_status (). | |
1092 | This function returns 1 if the inferior should not be resumed | |
1093 | (i.e. there is another event pending). */ | |
0d06e24b | 1094 | |
ee057212 | 1095 | int target_follow_fork (int follow_child); |
c906108c SS |
1096 | |
1097 | /* On some targets, we can catch an inferior exec event when it | |
0d06e24b | 1098 | occurs. These functions insert/remove an already-created |
77b06cd7 TJB |
1099 | catchpoint for such events. They return 0 for success, 1 if the |
1100 | catchpoint type is not supported and -1 for failure. */ | |
0d06e24b | 1101 | |
c906108c | 1102 | #define target_insert_exec_catchpoint(pid) \ |
0d06e24b | 1103 | (*current_target.to_insert_exec_catchpoint) (pid) |
c5aa993b | 1104 | |
c906108c | 1105 | #define target_remove_exec_catchpoint(pid) \ |
0d06e24b | 1106 | (*current_target.to_remove_exec_catchpoint) (pid) |
c906108c | 1107 | |
a96d9b2e SDJ |
1108 | /* Syscall catch. |
1109 | ||
1110 | NEEDED is nonzero if any syscall catch (of any kind) is requested. | |
1111 | If NEEDED is zero, it means the target can disable the mechanism to | |
1112 | catch system calls because there are no more catchpoints of this type. | |
1113 | ||
1114 | ANY_COUNT is nonzero if a generic (filter-less) syscall catch is | |
1115 | being requested. In this case, both TABLE_SIZE and TABLE should | |
1116 | be ignored. | |
1117 | ||
1118 | TABLE_SIZE is the number of elements in TABLE. It only matters if | |
1119 | ANY_COUNT is zero. | |
1120 | ||
1121 | TABLE is an array of ints, indexed by syscall number. An element in | |
1122 | this array is nonzero if that syscall should be caught. This argument | |
77b06cd7 TJB |
1123 | only matters if ANY_COUNT is zero. |
1124 | ||
1125 | Return 0 for success, 1 if syscall catchpoints are not supported or -1 | |
1126 | for failure. */ | |
a96d9b2e SDJ |
1127 | |
1128 | #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \ | |
1129 | (*current_target.to_set_syscall_catchpoint) (pid, needed, any_count, \ | |
1130 | table_size, table) | |
1131 | ||
c906108c | 1132 | /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the |
0d06e24b JM |
1133 | exit code of PID, if any. */ |
1134 | ||
c906108c | 1135 | #define target_has_exited(pid,wait_status,exit_status) \ |
0d06e24b | 1136 | (*current_target.to_has_exited) (pid,wait_status,exit_status) |
c906108c SS |
1137 | |
1138 | /* The debugger has completed a blocking wait() call. There is now | |
2146d243 | 1139 | some process event that must be processed. This function should |
c906108c | 1140 | be defined by those targets that require the debugger to perform |
0d06e24b | 1141 | cleanup or internal state changes in response to the process event. */ |
c906108c SS |
1142 | |
1143 | /* The inferior process has died. Do what is right. */ | |
1144 | ||
136d6dae | 1145 | void target_mourn_inferior (void); |
c906108c SS |
1146 | |
1147 | /* Does target have enough data to do a run or attach command? */ | |
1148 | ||
1149 | #define target_can_run(t) \ | |
0d06e24b | 1150 | ((t)->to_can_run) () |
c906108c | 1151 | |
2455069d UW |
1152 | /* Set list of signals to be handled in the target. |
1153 | ||
1154 | PASS_SIGNALS is an array of size NSIG, indexed by target signal number | |
1155 | (enum target_signal). For every signal whose entry in this array is | |
1156 | non-zero, the target is allowed -but not required- to skip reporting | |
1157 | arrival of the signal to the GDB core by returning from target_wait, | |
1158 | and to pass the signal directly to the inferior instead. | |
1159 | ||
1160 | However, if the target is hardware single-stepping a thread that is | |
1161 | about to receive a signal, it needs to be reported in any case, even | |
1162 | if mentioned in a previous target_pass_signals call. */ | |
c906108c | 1163 | |
2455069d | 1164 | extern void target_pass_signals (int nsig, unsigned char *pass_signals); |
c906108c SS |
1165 | |
1166 | /* Check to see if a thread is still alive. */ | |
1167 | ||
28439f5e | 1168 | extern int target_thread_alive (ptid_t ptid); |
c906108c | 1169 | |
b83266a0 SS |
1170 | /* Query for new threads and add them to the thread list. */ |
1171 | ||
28439f5e | 1172 | extern void target_find_new_threads (void); |
b83266a0 | 1173 | |
0d06e24b JM |
1174 | /* Make target stop in a continuable fashion. (For instance, under |
1175 | Unix, this should act like SIGSTOP). This function is normally | |
1176 | used by GUIs to implement a stop button. */ | |
c906108c | 1177 | |
d914c394 | 1178 | extern void target_stop (ptid_t ptid); |
c906108c | 1179 | |
96baa820 JM |
1180 | /* Send the specified COMMAND to the target's monitor |
1181 | (shell,interpreter) for execution. The result of the query is | |
0d06e24b | 1182 | placed in OUTBUF. */ |
96baa820 JM |
1183 | |
1184 | #define target_rcmd(command, outbuf) \ | |
1185 | (*current_target.to_rcmd) (command, outbuf) | |
1186 | ||
1187 | ||
c906108c SS |
1188 | /* Does the target include all of memory, or only part of it? This |
1189 | determines whether we look up the target chain for other parts of | |
1190 | memory if this target can't satisfy a request. */ | |
1191 | ||
c35b1492 PA |
1192 | extern int target_has_all_memory_1 (void); |
1193 | #define target_has_all_memory target_has_all_memory_1 () | |
c906108c SS |
1194 | |
1195 | /* Does the target include memory? (Dummy targets don't.) */ | |
1196 | ||
c35b1492 PA |
1197 | extern int target_has_memory_1 (void); |
1198 | #define target_has_memory target_has_memory_1 () | |
c906108c SS |
1199 | |
1200 | /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until | |
1201 | we start a process.) */ | |
c5aa993b | 1202 | |
c35b1492 PA |
1203 | extern int target_has_stack_1 (void); |
1204 | #define target_has_stack target_has_stack_1 () | |
c906108c SS |
1205 | |
1206 | /* Does the target have registers? (Exec files don't.) */ | |
1207 | ||
c35b1492 PA |
1208 | extern int target_has_registers_1 (void); |
1209 | #define target_has_registers target_has_registers_1 () | |
c906108c SS |
1210 | |
1211 | /* Does the target have execution? Can we make it jump (through | |
52bb452f DJ |
1212 | hoops), or pop its stack a few times? This means that the current |
1213 | target is currently executing; for some targets, that's the same as | |
1214 | whether or not the target is capable of execution, but there are | |
1215 | also targets which can be current while not executing. In that | |
1216 | case this will become true after target_create_inferior or | |
1217 | target_attach. */ | |
c906108c | 1218 | |
aeaec162 TT |
1219 | extern int target_has_execution_1 (ptid_t); |
1220 | ||
1221 | /* Like target_has_execution_1, but always passes inferior_ptid. */ | |
1222 | ||
1223 | extern int target_has_execution_current (void); | |
1224 | ||
1225 | #define target_has_execution target_has_execution_current () | |
c35b1492 PA |
1226 | |
1227 | /* Default implementations for process_stratum targets. Return true | |
1228 | if there's a selected inferior, false otherwise. */ | |
1229 | ||
1230 | extern int default_child_has_all_memory (struct target_ops *ops); | |
1231 | extern int default_child_has_memory (struct target_ops *ops); | |
1232 | extern int default_child_has_stack (struct target_ops *ops); | |
1233 | extern int default_child_has_registers (struct target_ops *ops); | |
aeaec162 TT |
1234 | extern int default_child_has_execution (struct target_ops *ops, |
1235 | ptid_t the_ptid); | |
c906108c SS |
1236 | |
1237 | /* Can the target support the debugger control of thread execution? | |
d6350901 | 1238 | Can it lock the thread scheduler? */ |
c906108c SS |
1239 | |
1240 | #define target_can_lock_scheduler \ | |
0d06e24b | 1241 | (current_target.to_has_thread_control & tc_schedlock) |
c906108c | 1242 | |
c6ebd6cf VP |
1243 | /* Should the target enable async mode if it is supported? Temporary |
1244 | cludge until async mode is a strict superset of sync mode. */ | |
1245 | extern int target_async_permitted; | |
1246 | ||
c378eb4e | 1247 | /* Can the target support asynchronous execution? */ |
6426a772 JM |
1248 | #define target_can_async_p() (current_target.to_can_async_p ()) |
1249 | ||
c378eb4e | 1250 | /* Is the target in asynchronous execution mode? */ |
b84876c2 | 1251 | #define target_is_async_p() (current_target.to_is_async_p ()) |
6426a772 | 1252 | |
9908b566 VP |
1253 | int target_supports_non_stop (void); |
1254 | ||
c378eb4e | 1255 | /* Put the target in async mode with the specified callback function. */ |
0d06e24b | 1256 | #define target_async(CALLBACK,CONTEXT) \ |
b84876c2 | 1257 | (current_target.to_async ((CALLBACK), (CONTEXT))) |
43ff13b4 | 1258 | |
32231432 PA |
1259 | #define target_execution_direction() \ |
1260 | (current_target.to_execution_direction ()) | |
1261 | ||
c906108c SS |
1262 | /* Converts a process id to a string. Usually, the string just contains |
1263 | `process xyz', but on some systems it may contain | |
1264 | `process xyz thread abc'. */ | |
1265 | ||
117de6a9 | 1266 | extern char *target_pid_to_str (ptid_t ptid); |
c906108c | 1267 | |
39f77062 | 1268 | extern char *normal_pid_to_str (ptid_t ptid); |
c5aa993b | 1269 | |
0d06e24b JM |
1270 | /* Return a short string describing extra information about PID, |
1271 | e.g. "sleeping", "runnable", "running on LWP 3". Null return value | |
1272 | is okay. */ | |
1273 | ||
1274 | #define target_extra_thread_info(TP) \ | |
1275 | (current_target.to_extra_thread_info (TP)) | |
ed9a39eb | 1276 | |
4694da01 TT |
1277 | /* Return the thread's name. A NULL result means that the target |
1278 | could not determine this thread's name. */ | |
1279 | ||
1280 | extern char *target_thread_name (struct thread_info *); | |
1281 | ||
c906108c SS |
1282 | /* Attempts to find the pathname of the executable file |
1283 | that was run to create a specified process. | |
1284 | ||
1285 | The process PID must be stopped when this operation is used. | |
c5aa993b | 1286 | |
c906108c SS |
1287 | If the executable file cannot be determined, NULL is returned. |
1288 | ||
1289 | Else, a pointer to a character string containing the pathname | |
1290 | is returned. This string should be copied into a buffer by | |
1291 | the client if the string will not be immediately used, or if | |
0d06e24b | 1292 | it must persist. */ |
c906108c SS |
1293 | |
1294 | #define target_pid_to_exec_file(pid) \ | |
0d06e24b | 1295 | (current_target.to_pid_to_exec_file) (pid) |
c906108c | 1296 | |
3a8f7b07 | 1297 | /* See the to_thread_architecture description in struct target_ops. */ |
c2250ad1 UW |
1298 | |
1299 | #define target_thread_architecture(ptid) \ | |
1300 | (current_target.to_thread_architecture (¤t_target, ptid)) | |
1301 | ||
be4d1333 MS |
1302 | /* |
1303 | * Iterator function for target memory regions. | |
1304 | * Calls a callback function once for each memory region 'mapped' | |
1305 | * in the child process. Defined as a simple macro rather than | |
2146d243 | 1306 | * as a function macro so that it can be tested for nullity. |
be4d1333 MS |
1307 | */ |
1308 | ||
1309 | #define target_find_memory_regions(FUNC, DATA) \ | |
1310 | (current_target.to_find_memory_regions) (FUNC, DATA) | |
1311 | ||
1312 | /* | |
1313 | * Compose corefile .note section. | |
1314 | */ | |
1315 | ||
1316 | #define target_make_corefile_notes(BFD, SIZE_P) \ | |
1317 | (current_target.to_make_corefile_notes) (BFD, SIZE_P) | |
1318 | ||
6b04bdb7 MS |
1319 | /* Bookmark interfaces. */ |
1320 | #define target_get_bookmark(ARGS, FROM_TTY) \ | |
1321 | (current_target.to_get_bookmark) (ARGS, FROM_TTY) | |
1322 | ||
1323 | #define target_goto_bookmark(ARG, FROM_TTY) \ | |
1324 | (current_target.to_goto_bookmark) (ARG, FROM_TTY) | |
1325 | ||
c906108c SS |
1326 | /* Hardware watchpoint interfaces. */ |
1327 | ||
1328 | /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or | |
7f82dfc7 | 1329 | write). Only the INFERIOR_PTID task is being queried. */ |
c906108c | 1330 | |
d92524f1 PM |
1331 | #define target_stopped_by_watchpoint \ |
1332 | (*current_target.to_stopped_by_watchpoint) | |
7df1a324 | 1333 | |
74174d2e UW |
1334 | /* Non-zero if we have steppable watchpoints */ |
1335 | ||
d92524f1 | 1336 | #define target_have_steppable_watchpoint \ |
74174d2e | 1337 | (current_target.to_have_steppable_watchpoint) |
74174d2e | 1338 | |
7df1a324 KW |
1339 | /* Non-zero if we have continuable watchpoints */ |
1340 | ||
d92524f1 | 1341 | #define target_have_continuable_watchpoint \ |
7df1a324 | 1342 | (current_target.to_have_continuable_watchpoint) |
c906108c | 1343 | |
ccaa32c7 | 1344 | /* Provide defaults for hardware watchpoint functions. */ |
c906108c | 1345 | |
2146d243 | 1346 | /* If the *_hw_beakpoint functions have not been defined |
ccaa32c7 | 1347 | elsewhere use the definitions in the target vector. */ |
c906108c SS |
1348 | |
1349 | /* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is | |
1350 | one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or | |
1351 | bp_hardware_breakpoint. CNT is the number of such watchpoints used so far | |
1352 | (including this one?). OTHERTYPE is who knows what... */ | |
1353 | ||
d92524f1 | 1354 | #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \ |
ccaa32c7 | 1355 | (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE); |
c906108c | 1356 | |
e09342b5 TJB |
1357 | /* Returns the number of debug registers needed to watch the given |
1358 | memory region, or zero if not supported. */ | |
1359 | ||
d92524f1 | 1360 | #define target_region_ok_for_hw_watchpoint(addr, len) \ |
e0d24f8d | 1361 | (*current_target.to_region_ok_for_hw_watchpoint) (addr, len) |
e0d24f8d | 1362 | |
c906108c | 1363 | |
85d721b8 PA |
1364 | /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes. |
1365 | TYPE is 0 for write, 1 for read, and 2 for read/write accesses. | |
0cf6dd15 | 1366 | COND is the expression for its condition, or NULL if there's none. |
85d721b8 PA |
1367 | Returns 0 for success, 1 if the watchpoint type is not supported, |
1368 | -1 for failure. */ | |
c906108c | 1369 | |
0cf6dd15 TJB |
1370 | #define target_insert_watchpoint(addr, len, type, cond) \ |
1371 | (*current_target.to_insert_watchpoint) (addr, len, type, cond) | |
c906108c | 1372 | |
0cf6dd15 TJB |
1373 | #define target_remove_watchpoint(addr, len, type, cond) \ |
1374 | (*current_target.to_remove_watchpoint) (addr, len, type, cond) | |
c906108c | 1375 | |
9c06b0b4 TJB |
1376 | /* Insert a new masked watchpoint at ADDR using the mask MASK. |
1377 | RW may be hw_read for a read watchpoint, hw_write for a write watchpoint | |
1378 | or hw_access for an access watchpoint. Returns 0 for success, 1 if | |
1379 | masked watchpoints are not supported, -1 for failure. */ | |
1380 | ||
1381 | extern int target_insert_mask_watchpoint (CORE_ADDR, CORE_ADDR, int); | |
1382 | ||
1383 | /* Remove a masked watchpoint at ADDR with the mask MASK. | |
1384 | RW may be hw_read for a read watchpoint, hw_write for a write watchpoint | |
1385 | or hw_access for an access watchpoint. Returns 0 for success, non-zero | |
1386 | for failure. */ | |
1387 | ||
1388 | extern int target_remove_mask_watchpoint (CORE_ADDR, CORE_ADDR, int); | |
1389 | ||
a6d9a66e UW |
1390 | #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \ |
1391 | (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt) | |
ccaa32c7 | 1392 | |
a6d9a66e UW |
1393 | #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \ |
1394 | (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt) | |
c906108c | 1395 | |
f1310107 TJB |
1396 | /* Return number of debug registers needed for a ranged breakpoint, |
1397 | or -1 if ranged breakpoints are not supported. */ | |
1398 | ||
1399 | extern int target_ranged_break_num_registers (void); | |
1400 | ||
7f82dfc7 JK |
1401 | /* Return non-zero if target knows the data address which triggered this |
1402 | target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the | |
1403 | INFERIOR_PTID task is being queried. */ | |
1404 | #define target_stopped_data_address(target, addr_p) \ | |
1405 | (*target.to_stopped_data_address) (target, addr_p) | |
c906108c | 1406 | |
5009afc5 AS |
1407 | #define target_watchpoint_addr_within_range(target, addr, start, length) \ |
1408 | (*target.to_watchpoint_addr_within_range) (target, addr, start, length) | |
1409 | ||
0cf6dd15 TJB |
1410 | /* Return non-zero if the target is capable of using hardware to evaluate |
1411 | the condition expression. In this case, if the condition is false when | |
1412 | the watched memory location changes, execution may continue without the | |
1413 | debugger being notified. | |
1414 | ||
1415 | Due to limitations in the hardware implementation, it may be capable of | |
1416 | avoiding triggering the watchpoint in some cases where the condition | |
1417 | expression is false, but may report some false positives as well. | |
1418 | For this reason, GDB will still evaluate the condition expression when | |
1419 | the watchpoint triggers. */ | |
1420 | #define target_can_accel_watchpoint_condition(addr, len, type, cond) \ | |
1421 | (*current_target.to_can_accel_watchpoint_condition) (addr, len, type, cond) | |
1422 | ||
9c06b0b4 TJB |
1423 | /* Return number of debug registers needed for a masked watchpoint, |
1424 | -1 if masked watchpoints are not supported or -2 if the given address | |
1425 | and mask combination cannot be used. */ | |
1426 | ||
1427 | extern int target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask); | |
1428 | ||
b2175913 MS |
1429 | /* Target can execute in reverse? */ |
1430 | #define target_can_execute_reverse \ | |
1431 | (current_target.to_can_execute_reverse ? \ | |
1432 | current_target.to_can_execute_reverse () : 0) | |
1433 | ||
424163ea DJ |
1434 | extern const struct target_desc *target_read_description (struct target_ops *); |
1435 | ||
0ef643c8 JB |
1436 | #define target_get_ada_task_ptid(lwp, tid) \ |
1437 | (*current_target.to_get_ada_task_ptid) (lwp,tid) | |
1438 | ||
08388c79 DE |
1439 | /* Utility implementation of searching memory. */ |
1440 | extern int simple_search_memory (struct target_ops* ops, | |
1441 | CORE_ADDR start_addr, | |
1442 | ULONGEST search_space_len, | |
1443 | const gdb_byte *pattern, | |
1444 | ULONGEST pattern_len, | |
1445 | CORE_ADDR *found_addrp); | |
1446 | ||
1447 | /* Main entry point for searching memory. */ | |
1448 | extern int target_search_memory (CORE_ADDR start_addr, | |
1449 | ULONGEST search_space_len, | |
1450 | const gdb_byte *pattern, | |
1451 | ULONGEST pattern_len, | |
1452 | CORE_ADDR *found_addrp); | |
1453 | ||
35b1e5cc SS |
1454 | /* Tracepoint-related operations. */ |
1455 | ||
1456 | #define target_trace_init() \ | |
1457 | (*current_target.to_trace_init) () | |
1458 | ||
1459 | #define target_download_tracepoint(t) \ | |
1460 | (*current_target.to_download_tracepoint) (t) | |
1461 | ||
1462 | #define target_download_trace_state_variable(tsv) \ | |
1463 | (*current_target.to_download_trace_state_variable) (tsv) | |
1464 | ||
d248b706 KY |
1465 | #define target_enable_tracepoint(loc) \ |
1466 | (*current_target.to_enable_tracepoint) (loc) | |
1467 | ||
1468 | #define target_disable_tracepoint(loc) \ | |
1469 | (*current_target.to_disable_tracepoint) (loc) | |
1470 | ||
35b1e5cc SS |
1471 | #define target_trace_start() \ |
1472 | (*current_target.to_trace_start) () | |
1473 | ||
1474 | #define target_trace_set_readonly_regions() \ | |
1475 | (*current_target.to_trace_set_readonly_regions) () | |
1476 | ||
00bf0b85 SS |
1477 | #define target_get_trace_status(ts) \ |
1478 | (*current_target.to_get_trace_status) (ts) | |
35b1e5cc SS |
1479 | |
1480 | #define target_trace_stop() \ | |
1481 | (*current_target.to_trace_stop) () | |
1482 | ||
1483 | #define target_trace_find(type,num,addr1,addr2,tpp) \ | |
1484 | (*current_target.to_trace_find) ((type), (num), (addr1), (addr2), (tpp)) | |
1485 | ||
1486 | #define target_get_trace_state_variable_value(tsv,val) \ | |
1487 | (*current_target.to_get_trace_state_variable_value) ((tsv), (val)) | |
1488 | ||
00bf0b85 SS |
1489 | #define target_save_trace_data(filename) \ |
1490 | (*current_target.to_save_trace_data) (filename) | |
1491 | ||
1492 | #define target_upload_tracepoints(utpp) \ | |
1493 | (*current_target.to_upload_tracepoints) (utpp) | |
1494 | ||
1495 | #define target_upload_trace_state_variables(utsvp) \ | |
1496 | (*current_target.to_upload_trace_state_variables) (utsvp) | |
1497 | ||
1498 | #define target_get_raw_trace_data(buf,offset,len) \ | |
1499 | (*current_target.to_get_raw_trace_data) ((buf), (offset), (len)) | |
1500 | ||
35b1e5cc SS |
1501 | #define target_set_disconnected_tracing(val) \ |
1502 | (*current_target.to_set_disconnected_tracing) (val) | |
1503 | ||
4daf5ac0 SS |
1504 | #define target_set_circular_trace_buffer(val) \ |
1505 | (*current_target.to_set_circular_trace_buffer) (val) | |
1506 | ||
711e434b PM |
1507 | #define target_get_tib_address(ptid, addr) \ |
1508 | (*current_target.to_get_tib_address) ((ptid), (addr)) | |
1509 | ||
d914c394 SS |
1510 | #define target_set_permissions() \ |
1511 | (*current_target.to_set_permissions) () | |
1512 | ||
0fb4aa4b PA |
1513 | #define target_static_tracepoint_marker_at(addr, marker) \ |
1514 | (*current_target.to_static_tracepoint_marker_at) (addr, marker) | |
1515 | ||
1516 | #define target_static_tracepoint_markers_by_strid(marker_id) \ | |
1517 | (*current_target.to_static_tracepoint_markers_by_strid) (marker_id) | |
1518 | ||
b3b9301e PA |
1519 | #define target_traceframe_info() \ |
1520 | (*current_target.to_traceframe_info) () | |
1521 | ||
49d03eab MR |
1522 | /* Command logging facility. */ |
1523 | ||
1524 | #define target_log_command(p) \ | |
1525 | do \ | |
1526 | if (current_target.to_log_command) \ | |
1527 | (*current_target.to_log_command) (p); \ | |
1528 | while (0) | |
1529 | ||
dc146f7c VP |
1530 | |
1531 | extern int target_core_of_thread (ptid_t ptid); | |
1532 | ||
4a5e7a5b PA |
1533 | /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches |
1534 | the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0 | |
1535 | if there's a mismatch, and -1 if an error is encountered while | |
1536 | reading memory. Throws an error if the functionality is found not | |
1537 | to be supported by the current target. */ | |
1538 | int target_verify_memory (const gdb_byte *data, | |
1539 | CORE_ADDR memaddr, ULONGEST size); | |
1540 | ||
c906108c SS |
1541 | /* Routines for maintenance of the target structures... |
1542 | ||
1543 | add_target: Add a target to the list of all possible targets. | |
1544 | ||
1545 | push_target: Make this target the top of the stack of currently used | |
c5aa993b JM |
1546 | targets, within its particular stratum of the stack. Result |
1547 | is 0 if now atop the stack, nonzero if not on top (maybe | |
1548 | should warn user). | |
c906108c SS |
1549 | |
1550 | unpush_target: Remove this from the stack of currently used targets, | |
c5aa993b JM |
1551 | no matter where it is on the list. Returns 0 if no |
1552 | change, 1 if removed from stack. | |
c906108c | 1553 | |
c5aa993b | 1554 | pop_target: Remove the top thing on the stack of current targets. */ |
c906108c | 1555 | |
a14ed312 | 1556 | extern void add_target (struct target_ops *); |
c906108c | 1557 | |
b26a4dcb | 1558 | extern void push_target (struct target_ops *); |
c906108c | 1559 | |
a14ed312 | 1560 | extern int unpush_target (struct target_ops *); |
c906108c | 1561 | |
fd79ecee DJ |
1562 | extern void target_pre_inferior (int); |
1563 | ||
a14ed312 | 1564 | extern void target_preopen (int); |
c906108c | 1565 | |
a14ed312 | 1566 | extern void pop_target (void); |
c906108c | 1567 | |
aa76d38d PA |
1568 | /* Does whatever cleanup is required to get rid of all pushed targets. |
1569 | QUITTING is propagated to target_close; it indicates that GDB is | |
1570 | exiting and should not get hung on an error (otherwise it is | |
1571 | important to perform clean termination, even if it takes a | |
1572 | while). */ | |
1573 | extern void pop_all_targets (int quitting); | |
1574 | ||
87ab71f0 PA |
1575 | /* Like pop_all_targets, but pops only targets whose stratum is |
1576 | strictly above ABOVE_STRATUM. */ | |
1577 | extern void pop_all_targets_above (enum strata above_stratum, int quitting); | |
1578 | ||
c0edd9ed JK |
1579 | extern int target_is_pushed (struct target_ops *t); |
1580 | ||
9e35dae4 DJ |
1581 | extern CORE_ADDR target_translate_tls_address (struct objfile *objfile, |
1582 | CORE_ADDR offset); | |
1583 | ||
0542c86d | 1584 | /* Struct target_section maps address ranges to file sections. It is |
c906108c SS |
1585 | mostly used with BFD files, but can be used without (e.g. for handling |
1586 | raw disks, or files not in formats handled by BFD). */ | |
1587 | ||
0542c86d | 1588 | struct target_section |
c5aa993b JM |
1589 | { |
1590 | CORE_ADDR addr; /* Lowest address in section */ | |
1591 | CORE_ADDR endaddr; /* 1+highest address in section */ | |
c906108c | 1592 | |
7be0c536 | 1593 | struct bfd_section *the_bfd_section; |
c906108c | 1594 | |
c5aa993b JM |
1595 | bfd *bfd; /* BFD file pointer */ |
1596 | }; | |
c906108c | 1597 | |
07b82ea5 PA |
1598 | /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */ |
1599 | ||
1600 | struct target_section_table | |
1601 | { | |
1602 | struct target_section *sections; | |
1603 | struct target_section *sections_end; | |
1604 | }; | |
1605 | ||
8db32d44 | 1606 | /* Return the "section" containing the specified address. */ |
0542c86d PA |
1607 | struct target_section *target_section_by_addr (struct target_ops *target, |
1608 | CORE_ADDR addr); | |
8db32d44 | 1609 | |
07b82ea5 PA |
1610 | /* Return the target section table this target (or the targets |
1611 | beneath) currently manipulate. */ | |
1612 | ||
1613 | extern struct target_section_table *target_get_section_table | |
1614 | (struct target_ops *target); | |
1615 | ||
c906108c SS |
1616 | /* From mem-break.c */ |
1617 | ||
3e43a32a MS |
1618 | extern int memory_remove_breakpoint (struct gdbarch *, |
1619 | struct bp_target_info *); | |
c906108c | 1620 | |
3e43a32a MS |
1621 | extern int memory_insert_breakpoint (struct gdbarch *, |
1622 | struct bp_target_info *); | |
c906108c | 1623 | |
3e43a32a MS |
1624 | extern int default_memory_remove_breakpoint (struct gdbarch *, |
1625 | struct bp_target_info *); | |
917317f4 | 1626 | |
3e43a32a MS |
1627 | extern int default_memory_insert_breakpoint (struct gdbarch *, |
1628 | struct bp_target_info *); | |
917317f4 | 1629 | |
c906108c SS |
1630 | |
1631 | /* From target.c */ | |
1632 | ||
a14ed312 | 1633 | extern void initialize_targets (void); |
c906108c | 1634 | |
c25c4a8b | 1635 | extern void noprocess (void) ATTRIBUTE_NORETURN; |
c906108c | 1636 | |
8edfe269 DJ |
1637 | extern void target_require_runnable (void); |
1638 | ||
136d6dae | 1639 | extern void find_default_attach (struct target_ops *, char *, int); |
c906108c | 1640 | |
136d6dae VP |
1641 | extern void find_default_create_inferior (struct target_ops *, |
1642 | char *, char *, char **, int); | |
c906108c | 1643 | |
a14ed312 | 1644 | extern struct target_ops *find_run_target (void); |
7a292a7a | 1645 | |
a14ed312 | 1646 | extern struct target_ops *find_target_beneath (struct target_ops *); |
ed9a39eb | 1647 | |
e0665bc8 PA |
1648 | /* Read OS data object of type TYPE from the target, and return it in |
1649 | XML format. The result is NUL-terminated and returned as a string, | |
1650 | allocated using xmalloc. If an error occurs or the transfer is | |
1651 | unsupported, NULL is returned. Empty objects are returned as | |
1652 | allocated but empty strings. */ | |
1653 | ||
07e059b5 VP |
1654 | extern char *target_get_osdata (const char *type); |
1655 | ||
c906108c SS |
1656 | \f |
1657 | /* Stuff that should be shared among the various remote targets. */ | |
1658 | ||
1659 | /* Debugging level. 0 is off, and non-zero values mean to print some debug | |
1660 | information (higher values, more information). */ | |
1661 | extern int remote_debug; | |
1662 | ||
1663 | /* Speed in bits per second, or -1 which means don't mess with the speed. */ | |
1664 | extern int baud_rate; | |
c378eb4e | 1665 | /* Timeout limit for response from target. */ |
c906108c SS |
1666 | extern int remote_timeout; |
1667 | ||
c906108c SS |
1668 | \f |
1669 | /* Functions for helping to write a native target. */ | |
1670 | ||
1671 | /* This is for native targets which use a unix/POSIX-style waitstatus. */ | |
a14ed312 | 1672 | extern void store_waitstatus (struct target_waitstatus *, int); |
c906108c | 1673 | |
2aecd87f | 1674 | /* These are in common/signals.c, but they're only used by gdb. */ |
1cded358 AR |
1675 | extern enum target_signal default_target_signal_from_host (struct gdbarch *, |
1676 | int); | |
1677 | extern int default_target_signal_to_host (struct gdbarch *, | |
1678 | enum target_signal); | |
1679 | ||
c906108c | 1680 | /* Convert from a number used in a GDB command to an enum target_signal. */ |
a14ed312 | 1681 | extern enum target_signal target_signal_from_command (int); |
2aecd87f | 1682 | /* End of files in common/signals.c. */ |
c906108c | 1683 | |
8defab1a DJ |
1684 | /* Set the show memory breakpoints mode to show, and installs a cleanup |
1685 | to restore it back to the current value. */ | |
1686 | extern struct cleanup *make_show_memory_breakpoints_cleanup (int show); | |
1687 | ||
d914c394 SS |
1688 | extern int may_write_registers; |
1689 | extern int may_write_memory; | |
1690 | extern int may_insert_breakpoints; | |
1691 | extern int may_insert_tracepoints; | |
1692 | extern int may_insert_fast_tracepoints; | |
1693 | extern int may_stop; | |
1694 | ||
1695 | extern void update_target_permissions (void); | |
1696 | ||
c906108c | 1697 | \f |
c378eb4e | 1698 | /* Imported from machine dependent code. */ |
c906108c | 1699 | |
c378eb4e | 1700 | /* Blank target vector entries are initialized to target_ignore. */ |
a14ed312 | 1701 | void target_ignore (void); |
c906108c | 1702 | |
c5aa993b | 1703 | #endif /* !defined (TARGET_H) */ |