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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; |
8181d85f | 31 | struct bp_target_info; |
56be3814 | 32 | struct regcache; |
07b82ea5 | 33 | struct target_section_table; |
35b1e5cc | 34 | struct trace_state_variable; |
00bf0b85 SS |
35 | struct trace_status; |
36 | struct uploaded_tsv; | |
37 | struct uploaded_tp; | |
0fb4aa4b | 38 | struct static_tracepoint_marker; |
b3b9301e | 39 | struct traceframe_info; |
0cf6dd15 TJB |
40 | struct expression; |
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 | ||
61 | #include "bfd.h" | |
62 | #include "symtab.h" | |
29e57380 | 63 | #include "memattr.h" |
fd79ecee | 64 | #include "vec.h" |
2aecd87f | 65 | #include "gdb_signals.h" |
c906108c | 66 | |
c5aa993b JM |
67 | enum strata |
68 | { | |
69 | dummy_stratum, /* The lowest of the low */ | |
70 | file_stratum, /* Executable files, etc */ | |
c0edd9ed | 71 | process_stratum, /* Executing processes or core dump files */ |
81e64f55 | 72 | thread_stratum, /* Executing threads */ |
85e747d2 UW |
73 | record_stratum, /* Support record debugging */ |
74 | arch_stratum /* Architecture overrides */ | |
c5aa993b | 75 | }; |
c906108c | 76 | |
c5aa993b JM |
77 | enum thread_control_capabilities |
78 | { | |
0d06e24b JM |
79 | tc_none = 0, /* Default: can't control thread execution. */ |
80 | tc_schedlock = 1, /* Can lock the thread scheduler. */ | |
c5aa993b | 81 | }; |
c906108c SS |
82 | |
83 | /* Stuff for target_wait. */ | |
84 | ||
85 | /* Generally, what has the program done? */ | |
c5aa993b JM |
86 | enum target_waitkind |
87 | { | |
88 | /* The program has exited. The exit status is in value.integer. */ | |
89 | TARGET_WAITKIND_EXITED, | |
c906108c | 90 | |
0d06e24b JM |
91 | /* The program has stopped with a signal. Which signal is in |
92 | value.sig. */ | |
c5aa993b | 93 | TARGET_WAITKIND_STOPPED, |
c906108c | 94 | |
c5aa993b JM |
95 | /* The program has terminated with a signal. Which signal is in |
96 | value.sig. */ | |
97 | TARGET_WAITKIND_SIGNALLED, | |
c906108c | 98 | |
c5aa993b JM |
99 | /* The program is letting us know that it dynamically loaded something |
100 | (e.g. it called load(2) on AIX). */ | |
101 | TARGET_WAITKIND_LOADED, | |
c906108c | 102 | |
3a3e9ee3 | 103 | /* The program has forked. A "related" process' PTID is in |
0d06e24b JM |
104 | value.related_pid. I.e., if the child forks, value.related_pid |
105 | is the parent's ID. */ | |
106 | ||
c5aa993b | 107 | TARGET_WAITKIND_FORKED, |
c906108c | 108 | |
3a3e9ee3 | 109 | /* The program has vforked. A "related" process's PTID is in |
0d06e24b JM |
110 | value.related_pid. */ |
111 | ||
c5aa993b | 112 | TARGET_WAITKIND_VFORKED, |
c906108c | 113 | |
0d06e24b JM |
114 | /* The program has exec'ed a new executable file. The new file's |
115 | pathname is pointed to by value.execd_pathname. */ | |
116 | ||
c5aa993b | 117 | TARGET_WAITKIND_EXECD, |
c906108c | 118 | |
6c95b8df PA |
119 | /* The program had previously vforked, and now the child is done |
120 | with the shared memory region, because it exec'ed or exited. | |
121 | Note that the event is reported to the vfork parent. This is | |
122 | only used if GDB did not stay attached to the vfork child, | |
123 | otherwise, a TARGET_WAITKIND_EXECD or | |
124 | TARGET_WAITKIND_EXIT|SIGNALLED event associated with the child | |
125 | has the same effect. */ | |
126 | TARGET_WAITKIND_VFORK_DONE, | |
127 | ||
0d06e24b JM |
128 | /* The program has entered or returned from a system call. On |
129 | HP-UX, this is used in the hardware watchpoint implementation. | |
c378eb4e | 130 | The syscall's unique integer ID number is in value.syscall_id. */ |
0d06e24b | 131 | |
c5aa993b JM |
132 | TARGET_WAITKIND_SYSCALL_ENTRY, |
133 | TARGET_WAITKIND_SYSCALL_RETURN, | |
c906108c | 134 | |
c5aa993b JM |
135 | /* Nothing happened, but we stopped anyway. This perhaps should be handled |
136 | within target_wait, but I'm not sure target_wait should be resuming the | |
137 | inferior. */ | |
c4093a6a JM |
138 | TARGET_WAITKIND_SPURIOUS, |
139 | ||
8e7d2c16 DJ |
140 | /* An event has occured, but we should wait again. |
141 | Remote_async_wait() returns this when there is an event | |
c4093a6a | 142 | on the inferior, but the rest of the world is not interested in |
c378eb4e MS |
143 | it. The inferior has not stopped, but has just sent some output |
144 | to the console, for instance. In this case, we want to go back | |
c4093a6a JM |
145 | to the event loop and wait there for another event from the |
146 | inferior, rather than being stuck in the remote_async_wait() | |
c378eb4e | 147 | function. sThis way the event loop is responsive to other events, |
0d06e24b | 148 | like for instance the user typing. */ |
b2175913 MS |
149 | TARGET_WAITKIND_IGNORE, |
150 | ||
151 | /* The target has run out of history information, | |
152 | and cannot run backward any further. */ | |
153 | TARGET_WAITKIND_NO_HISTORY | |
c906108c SS |
154 | }; |
155 | ||
c5aa993b JM |
156 | struct target_waitstatus |
157 | { | |
158 | enum target_waitkind kind; | |
159 | ||
a96d9b2e SDJ |
160 | /* Forked child pid, execd pathname, exit status, signal number or |
161 | syscall number. */ | |
c5aa993b JM |
162 | union |
163 | { | |
164 | int integer; | |
165 | enum target_signal sig; | |
3a3e9ee3 | 166 | ptid_t related_pid; |
c5aa993b | 167 | char *execd_pathname; |
a96d9b2e | 168 | int syscall_number; |
c5aa993b JM |
169 | } |
170 | value; | |
171 | }; | |
c906108c | 172 | |
47608cb1 PA |
173 | /* Options that can be passed to target_wait. */ |
174 | ||
175 | /* Return immediately if there's no event already queued. If this | |
176 | options is not requested, target_wait blocks waiting for an | |
177 | event. */ | |
178 | #define TARGET_WNOHANG 1 | |
179 | ||
a96d9b2e SDJ |
180 | /* The structure below stores information about a system call. |
181 | It is basically used in the "catch syscall" command, and in | |
182 | every function that gives information about a system call. | |
183 | ||
184 | It's also good to mention that its fields represent everything | |
185 | that we currently know about a syscall in GDB. */ | |
186 | struct syscall | |
187 | { | |
188 | /* The syscall number. */ | |
189 | int number; | |
190 | ||
191 | /* The syscall name. */ | |
192 | const char *name; | |
193 | }; | |
194 | ||
f00150c9 DE |
195 | /* Return a pretty printed form of target_waitstatus. |
196 | Space for the result is malloc'd, caller must free. */ | |
197 | extern char *target_waitstatus_to_string (const struct target_waitstatus *); | |
198 | ||
2acceee2 | 199 | /* Possible types of events that the inferior handler will have to |
0d06e24b | 200 | deal with. */ |
2acceee2 JM |
201 | enum inferior_event_type |
202 | { | |
0d06e24b | 203 | /* There is a request to quit the inferior, abandon it. */ |
2acceee2 JM |
204 | INF_QUIT_REQ, |
205 | /* Process a normal inferior event which will result in target_wait | |
0d06e24b | 206 | being called. */ |
2146d243 | 207 | INF_REG_EVENT, |
0d06e24b | 208 | /* Deal with an error on the inferior. */ |
2acceee2 | 209 | INF_ERROR, |
0d06e24b | 210 | /* We are called because a timer went off. */ |
2acceee2 | 211 | INF_TIMER, |
0d06e24b | 212 | /* We are called to do stuff after the inferior stops. */ |
c2d11a7d JM |
213 | INF_EXEC_COMPLETE, |
214 | /* We are called to do some stuff after the inferior stops, but we | |
215 | are expected to reenter the proceed() and | |
c378eb4e | 216 | handle_inferior_event() functions. This is used only in case of |
0d06e24b | 217 | 'step n' like commands. */ |
c2d11a7d | 218 | INF_EXEC_CONTINUE |
2acceee2 | 219 | }; |
c906108c | 220 | \f |
13547ab6 DJ |
221 | /* Target objects which can be transfered using target_read, |
222 | target_write, et cetera. */ | |
1e3ff5ad AC |
223 | |
224 | enum target_object | |
225 | { | |
1e3ff5ad AC |
226 | /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */ |
227 | TARGET_OBJECT_AVR, | |
23d964e7 UW |
228 | /* SPU target specific transfer. See "spu-tdep.c". */ |
229 | TARGET_OBJECT_SPU, | |
1e3ff5ad | 230 | /* Transfer up-to LEN bytes of memory starting at OFFSET. */ |
287a334e | 231 | TARGET_OBJECT_MEMORY, |
cf7a04e8 DJ |
232 | /* Memory, avoiding GDB's data cache and trusting the executable. |
233 | Target implementations of to_xfer_partial never need to handle | |
234 | this object, and most callers should not use it. */ | |
235 | TARGET_OBJECT_RAW_MEMORY, | |
4e5d721f DE |
236 | /* Memory known to be part of the target's stack. This is cached even |
237 | if it is not in a region marked as such, since it is known to be | |
238 | "normal" RAM. */ | |
239 | TARGET_OBJECT_STACK_MEMORY, | |
287a334e JJ |
240 | /* Kernel Unwind Table. See "ia64-tdep.c". */ |
241 | TARGET_OBJECT_UNWIND_TABLE, | |
2146d243 RM |
242 | /* Transfer auxilliary vector. */ |
243 | TARGET_OBJECT_AUXV, | |
baf92889 | 244 | /* StackGhost cookie. See "sparc-tdep.c". */ |
fd79ecee DJ |
245 | TARGET_OBJECT_WCOOKIE, |
246 | /* Target memory map in XML format. */ | |
247 | TARGET_OBJECT_MEMORY_MAP, | |
a76d924d DJ |
248 | /* Flash memory. This object can be used to write contents to |
249 | a previously erased flash memory. Using it without erasing | |
250 | flash can have unexpected results. Addresses are physical | |
251 | address on target, and not relative to flash start. */ | |
23181151 DJ |
252 | TARGET_OBJECT_FLASH, |
253 | /* Available target-specific features, e.g. registers and coprocessors. | |
254 | See "target-descriptions.c". ANNEX should never be empty. */ | |
cfa9d6d9 DJ |
255 | TARGET_OBJECT_AVAILABLE_FEATURES, |
256 | /* Currently loaded libraries, in XML format. */ | |
07e059b5 VP |
257 | TARGET_OBJECT_LIBRARIES, |
258 | /* Get OS specific data. The ANNEX specifies the type (running | |
113a6f1e JB |
259 | processes, etc.). The data being transfered is expected to follow |
260 | the DTD specified in features/osdata.dtd. */ | |
4aa995e1 PA |
261 | TARGET_OBJECT_OSDATA, |
262 | /* Extra signal info. Usually the contents of `siginfo_t' on unix | |
263 | platforms. */ | |
264 | TARGET_OBJECT_SIGNAL_INFO, | |
dc146f7c VP |
265 | /* The list of threads that are being debugged. */ |
266 | TARGET_OBJECT_THREADS, | |
0fb4aa4b PA |
267 | /* Collected static trace data. */ |
268 | TARGET_OBJECT_STATIC_TRACE_DATA, | |
77ca787b JB |
269 | /* The HP-UX registers (those that can be obtained or modified by using |
270 | the TT_LWP_RUREGS/TT_LWP_WUREGS ttrace requests). */ | |
271 | TARGET_OBJECT_HPUX_UREGS, | |
c4de7027 JB |
272 | /* The HP-UX shared library linkage pointer. ANNEX should be a string |
273 | image of the code address whose linkage pointer we are looking for. | |
274 | ||
275 | The size of the data transfered is always 8 bytes (the size of an | |
276 | address on ia64). */ | |
277 | TARGET_OBJECT_HPUX_SOLIB_GOT, | |
b3b9301e PA |
278 | /* Traceframe info, in XML format. */ |
279 | TARGET_OBJECT_TRACEFRAME_INFO, | |
c378eb4e | 280 | /* Possible future objects: TARGET_OBJECT_FILE, ... */ |
1e3ff5ad AC |
281 | }; |
282 | ||
35b1e5cc SS |
283 | /* Enumeration of the kinds of traceframe searches that a target may |
284 | be able to perform. */ | |
285 | ||
286 | enum trace_find_type | |
287 | { | |
288 | tfind_number, | |
289 | tfind_pc, | |
290 | tfind_tp, | |
291 | tfind_range, | |
292 | tfind_outside, | |
293 | }; | |
294 | ||
0fb4aa4b PA |
295 | typedef struct static_tracepoint_marker *static_tracepoint_marker_p; |
296 | DEF_VEC_P(static_tracepoint_marker_p); | |
297 | ||
13547ab6 DJ |
298 | /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
299 | OBJECT. The OFFSET, for a seekable object, specifies the | |
300 | starting point. The ANNEX can be used to provide additional | |
301 | data-specific information to the target. | |
1e3ff5ad | 302 | |
13547ab6 DJ |
303 | Return the number of bytes actually transfered, or -1 if the |
304 | transfer is not supported or otherwise fails. Return of a positive | |
305 | value less than LEN indicates that no further transfer is possible. | |
306 | Unlike the raw to_xfer_partial interface, callers of these | |
307 | functions do not need to retry partial transfers. */ | |
1e3ff5ad | 308 | |
1e3ff5ad AC |
309 | extern LONGEST target_read (struct target_ops *ops, |
310 | enum target_object object, | |
1b0ba102 | 311 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
312 | ULONGEST offset, LONGEST len); |
313 | ||
8dedea02 VP |
314 | struct memory_read_result |
315 | { | |
c378eb4e | 316 | /* First address that was read. */ |
8dedea02 VP |
317 | ULONGEST begin; |
318 | /* Past-the-end address. */ | |
319 | ULONGEST end; | |
320 | /* The data. */ | |
321 | gdb_byte *data; | |
322 | }; | |
323 | typedef struct memory_read_result memory_read_result_s; | |
324 | DEF_VEC_O(memory_read_result_s); | |
325 | ||
326 | extern void free_memory_read_result_vector (void *); | |
327 | ||
328 | extern VEC(memory_read_result_s)* read_memory_robust (struct target_ops *ops, | |
329 | ULONGEST offset, | |
330 | LONGEST len); | |
d5086790 | 331 | |
1e3ff5ad AC |
332 | extern LONGEST target_write (struct target_ops *ops, |
333 | enum target_object object, | |
1b0ba102 | 334 | const char *annex, const gdb_byte *buf, |
1e3ff5ad | 335 | ULONGEST offset, LONGEST len); |
b6591e8b | 336 | |
a76d924d DJ |
337 | /* Similar to target_write, except that it also calls PROGRESS with |
338 | the number of bytes written and the opaque BATON after every | |
339 | successful partial write (and before the first write). This is | |
340 | useful for progress reporting and user interaction while writing | |
341 | data. To abort the transfer, the progress callback can throw an | |
342 | exception. */ | |
343 | ||
cf7a04e8 DJ |
344 | LONGEST target_write_with_progress (struct target_ops *ops, |
345 | enum target_object object, | |
346 | const char *annex, const gdb_byte *buf, | |
347 | ULONGEST offset, LONGEST len, | |
348 | void (*progress) (ULONGEST, void *), | |
349 | void *baton); | |
350 | ||
13547ab6 DJ |
351 | /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will |
352 | be read using OPS. The return value will be -1 if the transfer | |
353 | fails or is not supported; 0 if the object is empty; or the length | |
354 | of the object otherwise. If a positive value is returned, a | |
355 | sufficiently large buffer will be allocated using xmalloc and | |
356 | returned in *BUF_P containing the contents of the object. | |
357 | ||
358 | This method should be used for objects sufficiently small to store | |
359 | in a single xmalloc'd buffer, when no fixed bound on the object's | |
360 | size is known in advance. Don't try to read TARGET_OBJECT_MEMORY | |
361 | through this function. */ | |
362 | ||
363 | extern LONGEST target_read_alloc (struct target_ops *ops, | |
364 | enum target_object object, | |
365 | const char *annex, gdb_byte **buf_p); | |
366 | ||
159f81f3 DJ |
367 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and |
368 | returned as a string, allocated using xmalloc. If an error occurs | |
369 | or the transfer is unsupported, NULL is returned. Empty objects | |
370 | are returned as allocated but empty strings. A warning is issued | |
371 | if the result contains any embedded NUL bytes. */ | |
372 | ||
373 | extern char *target_read_stralloc (struct target_ops *ops, | |
374 | enum target_object object, | |
375 | const char *annex); | |
376 | ||
b6591e8b AC |
377 | /* Wrappers to target read/write that perform memory transfers. They |
378 | throw an error if the memory transfer fails. | |
379 | ||
380 | NOTE: cagney/2003-10-23: The naming schema is lifted from | |
381 | "frame.h". The parameter order is lifted from get_frame_memory, | |
382 | which in turn lifted it from read_memory. */ | |
383 | ||
384 | extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr, | |
1b0ba102 | 385 | gdb_byte *buf, LONGEST len); |
b6591e8b | 386 | extern ULONGEST get_target_memory_unsigned (struct target_ops *ops, |
e17a4113 UW |
387 | CORE_ADDR addr, int len, |
388 | enum bfd_endian byte_order); | |
1e3ff5ad | 389 | \f |
0d06e24b JM |
390 | struct thread_info; /* fwd decl for parameter list below: */ |
391 | ||
c906108c | 392 | struct target_ops |
c5aa993b | 393 | { |
258b763a | 394 | struct target_ops *beneath; /* To the target under this one. */ |
c5aa993b JM |
395 | char *to_shortname; /* Name this target type */ |
396 | char *to_longname; /* Name for printing */ | |
397 | char *to_doc; /* Documentation. Does not include trailing | |
c906108c | 398 | newline, and starts with a one-line descrip- |
0d06e24b | 399 | tion (probably similar to to_longname). */ |
bba2d28d AC |
400 | /* Per-target scratch pad. */ |
401 | void *to_data; | |
f1c07ab0 AC |
402 | /* The open routine takes the rest of the parameters from the |
403 | command, and (if successful) pushes a new target onto the | |
404 | stack. Targets should supply this routine, if only to provide | |
405 | an error message. */ | |
507f3c78 | 406 | void (*to_open) (char *, int); |
f1c07ab0 AC |
407 | /* Old targets with a static target vector provide "to_close". |
408 | New re-entrant targets provide "to_xclose" and that is expected | |
409 | to xfree everything (including the "struct target_ops"). */ | |
410 | void (*to_xclose) (struct target_ops *targ, int quitting); | |
507f3c78 | 411 | void (*to_close) (int); |
136d6dae | 412 | void (*to_attach) (struct target_ops *ops, char *, int); |
507f3c78 | 413 | void (*to_post_attach) (int); |
136d6dae | 414 | void (*to_detach) (struct target_ops *ops, char *, int); |
597320e7 | 415 | void (*to_disconnect) (struct target_ops *, char *, int); |
28439f5e | 416 | void (*to_resume) (struct target_ops *, ptid_t, int, enum target_signal); |
117de6a9 | 417 | ptid_t (*to_wait) (struct target_ops *, |
47608cb1 | 418 | ptid_t, struct target_waitstatus *, int); |
28439f5e PA |
419 | void (*to_fetch_registers) (struct target_ops *, struct regcache *, int); |
420 | void (*to_store_registers) (struct target_ops *, struct regcache *, int); | |
316f2060 | 421 | void (*to_prepare_to_store) (struct regcache *); |
c5aa993b JM |
422 | |
423 | /* Transfer LEN bytes of memory between GDB address MYADDR and | |
424 | target address MEMADDR. If WRITE, transfer them to the target, else | |
425 | transfer them from the target. TARGET is the target from which we | |
426 | get this function. | |
427 | ||
428 | Return value, N, is one of the following: | |
429 | ||
430 | 0 means that we can't handle this. If errno has been set, it is the | |
431 | error which prevented us from doing it (FIXME: What about bfd_error?). | |
432 | ||
433 | positive (call it N) means that we have transferred N bytes | |
434 | starting at MEMADDR. We might be able to handle more bytes | |
435 | beyond this length, but no promises. | |
436 | ||
437 | negative (call its absolute value N) means that we cannot | |
438 | transfer right at MEMADDR, but we could transfer at least | |
c8e73a31 | 439 | something at MEMADDR + N. |
c5aa993b | 440 | |
c8e73a31 AC |
441 | NOTE: cagney/2004-10-01: This has been entirely superseeded by |
442 | to_xfer_partial and inferior inheritance. */ | |
443 | ||
1b0ba102 | 444 | int (*deprecated_xfer_memory) (CORE_ADDR memaddr, gdb_byte *myaddr, |
c8e73a31 AC |
445 | int len, int write, |
446 | struct mem_attrib *attrib, | |
447 | struct target_ops *target); | |
c906108c | 448 | |
507f3c78 | 449 | void (*to_files_info) (struct target_ops *); |
a6d9a66e UW |
450 | int (*to_insert_breakpoint) (struct gdbarch *, struct bp_target_info *); |
451 | int (*to_remove_breakpoint) (struct gdbarch *, struct bp_target_info *); | |
ccaa32c7 | 452 | int (*to_can_use_hw_breakpoint) (int, int, int); |
f1310107 | 453 | int (*to_ranged_break_num_registers) (struct target_ops *); |
a6d9a66e UW |
454 | int (*to_insert_hw_breakpoint) (struct gdbarch *, struct bp_target_info *); |
455 | int (*to_remove_hw_breakpoint) (struct gdbarch *, struct bp_target_info *); | |
0cf6dd15 TJB |
456 | |
457 | /* Documentation of what the two routines below are expected to do is | |
458 | provided with the corresponding target_* macros. */ | |
459 | int (*to_remove_watchpoint) (CORE_ADDR, int, int, struct expression *); | |
460 | int (*to_insert_watchpoint) (CORE_ADDR, int, int, struct expression *); | |
461 | ||
ccaa32c7 | 462 | int (*to_stopped_by_watchpoint) (void); |
74174d2e | 463 | int to_have_steppable_watchpoint; |
7df1a324 | 464 | int to_have_continuable_watchpoint; |
4aa7a7f5 | 465 | int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *); |
5009afc5 AS |
466 | int (*to_watchpoint_addr_within_range) (struct target_ops *, |
467 | CORE_ADDR, CORE_ADDR, int); | |
e09342b5 TJB |
468 | |
469 | /* Documentation of this routine is provided with the corresponding | |
470 | target_* macro. */ | |
e0d24f8d | 471 | int (*to_region_ok_for_hw_watchpoint) (CORE_ADDR, int); |
e09342b5 | 472 | |
0cf6dd15 TJB |
473 | int (*to_can_accel_watchpoint_condition) (CORE_ADDR, int, int, |
474 | struct expression *); | |
507f3c78 KB |
475 | void (*to_terminal_init) (void); |
476 | void (*to_terminal_inferior) (void); | |
477 | void (*to_terminal_ours_for_output) (void); | |
478 | void (*to_terminal_ours) (void); | |
a790ad35 | 479 | void (*to_terminal_save_ours) (void); |
507f3c78 | 480 | void (*to_terminal_info) (char *, int); |
7d85a9c0 | 481 | void (*to_kill) (struct target_ops *); |
507f3c78 | 482 | void (*to_load) (char *, int); |
136d6dae VP |
483 | void (*to_create_inferior) (struct target_ops *, |
484 | char *, char *, char **, int); | |
39f77062 | 485 | void (*to_post_startup_inferior) (ptid_t); |
77b06cd7 | 486 | int (*to_insert_fork_catchpoint) (int); |
507f3c78 | 487 | int (*to_remove_fork_catchpoint) (int); |
77b06cd7 | 488 | int (*to_insert_vfork_catchpoint) (int); |
507f3c78 | 489 | int (*to_remove_vfork_catchpoint) (int); |
ee057212 | 490 | int (*to_follow_fork) (struct target_ops *, int); |
77b06cd7 | 491 | int (*to_insert_exec_catchpoint) (int); |
507f3c78 | 492 | int (*to_remove_exec_catchpoint) (int); |
a96d9b2e | 493 | int (*to_set_syscall_catchpoint) (int, int, int, int, int *); |
507f3c78 | 494 | int (*to_has_exited) (int, int, int *); |
136d6dae | 495 | void (*to_mourn_inferior) (struct target_ops *); |
507f3c78 | 496 | int (*to_can_run) (void); |
2455069d UW |
497 | |
498 | /* Documentation of this routine is provided with the corresponding | |
499 | target_* macro. */ | |
500 | void (*to_pass_signals) (int, unsigned char *); | |
501 | ||
28439f5e PA |
502 | int (*to_thread_alive) (struct target_ops *, ptid_t ptid); |
503 | void (*to_find_new_threads) (struct target_ops *); | |
117de6a9 | 504 | char *(*to_pid_to_str) (struct target_ops *, ptid_t); |
507f3c78 | 505 | char *(*to_extra_thread_info) (struct thread_info *); |
4694da01 | 506 | char *(*to_thread_name) (struct thread_info *); |
94cc34af | 507 | void (*to_stop) (ptid_t); |
d9fcf2fb | 508 | void (*to_rcmd) (char *command, struct ui_file *output); |
507f3c78 | 509 | char *(*to_pid_to_exec_file) (int pid); |
49d03eab | 510 | void (*to_log_command) (const char *); |
07b82ea5 | 511 | struct target_section_table *(*to_get_section_table) (struct target_ops *); |
c5aa993b | 512 | enum strata to_stratum; |
c35b1492 PA |
513 | int (*to_has_all_memory) (struct target_ops *); |
514 | int (*to_has_memory) (struct target_ops *); | |
515 | int (*to_has_stack) (struct target_ops *); | |
516 | int (*to_has_registers) (struct target_ops *); | |
aeaec162 | 517 | int (*to_has_execution) (struct target_ops *, ptid_t); |
c5aa993b | 518 | int to_has_thread_control; /* control thread execution */ |
dc177b7a | 519 | int to_attach_no_wait; |
6426a772 JM |
520 | /* ASYNC target controls */ |
521 | int (*to_can_async_p) (void); | |
522 | int (*to_is_async_p) (void); | |
b84876c2 PA |
523 | void (*to_async) (void (*) (enum inferior_event_type, void *), void *); |
524 | int (*to_async_mask) (int); | |
9908b566 | 525 | int (*to_supports_non_stop) (void); |
6b04bdb7 | 526 | /* find_memory_regions support method for gcore */ |
b8edc417 | 527 | int (*to_find_memory_regions) (find_memory_region_ftype func, void *data); |
6b04bdb7 | 528 | /* make_corefile_notes support method for gcore */ |
be4d1333 | 529 | char * (*to_make_corefile_notes) (bfd *, int *); |
6b04bdb7 MS |
530 | /* get_bookmark support method for bookmarks */ |
531 | gdb_byte * (*to_get_bookmark) (char *, int); | |
532 | /* goto_bookmark support method for bookmarks */ | |
533 | void (*to_goto_bookmark) (gdb_byte *, int); | |
3f47be5c EZ |
534 | /* Return the thread-local address at OFFSET in the |
535 | thread-local storage for the thread PTID and the shared library | |
536 | or executable file given by OBJFILE. If that block of | |
537 | thread-local storage hasn't been allocated yet, this function | |
538 | may return an error. */ | |
117de6a9 PA |
539 | CORE_ADDR (*to_get_thread_local_address) (struct target_ops *ops, |
540 | ptid_t ptid, | |
b2756930 | 541 | CORE_ADDR load_module_addr, |
3f47be5c EZ |
542 | CORE_ADDR offset); |
543 | ||
13547ab6 DJ |
544 | /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
545 | OBJECT. The OFFSET, for a seekable object, specifies the | |
546 | starting point. The ANNEX can be used to provide additional | |
547 | data-specific information to the target. | |
548 | ||
549 | Return the number of bytes actually transfered, zero when no | |
550 | further transfer is possible, and -1 when the transfer is not | |
551 | supported. Return of a positive value smaller than LEN does | |
552 | not indicate the end of the object, only the end of the | |
553 | transfer; higher level code should continue transferring if | |
554 | desired. This is handled in target.c. | |
555 | ||
556 | The interface does not support a "retry" mechanism. Instead it | |
557 | assumes that at least one byte will be transfered on each | |
558 | successful call. | |
559 | ||
560 | NOTE: cagney/2003-10-17: The current interface can lead to | |
561 | fragmented transfers. Lower target levels should not implement | |
562 | hacks, such as enlarging the transfer, in an attempt to | |
563 | compensate for this. Instead, the target stack should be | |
564 | extended so that it implements supply/collect methods and a | |
565 | look-aside object cache. With that available, the lowest | |
566 | target can safely and freely "push" data up the stack. | |
567 | ||
568 | See target_read and target_write for more information. One, | |
569 | and only one, of readbuf or writebuf must be non-NULL. */ | |
570 | ||
4b8a223f | 571 | LONGEST (*to_xfer_partial) (struct target_ops *ops, |
8aa91c1e | 572 | enum target_object object, const char *annex, |
1b0ba102 | 573 | gdb_byte *readbuf, const gdb_byte *writebuf, |
8aa91c1e | 574 | ULONGEST offset, LONGEST len); |
1e3ff5ad | 575 | |
fd79ecee DJ |
576 | /* Returns the memory map for the target. A return value of NULL |
577 | means that no memory map is available. If a memory address | |
578 | does not fall within any returned regions, it's assumed to be | |
579 | RAM. The returned memory regions should not overlap. | |
580 | ||
581 | The order of regions does not matter; target_memory_map will | |
c378eb4e | 582 | sort regions by starting address. For that reason, this |
fd79ecee DJ |
583 | function should not be called directly except via |
584 | target_memory_map. | |
585 | ||
586 | This method should not cache data; if the memory map could | |
587 | change unexpectedly, it should be invalidated, and higher | |
588 | layers will re-fetch it. */ | |
589 | VEC(mem_region_s) *(*to_memory_map) (struct target_ops *); | |
590 | ||
a76d924d DJ |
591 | /* Erases the region of flash memory starting at ADDRESS, of |
592 | length LENGTH. | |
593 | ||
594 | Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned | |
595 | on flash block boundaries, as reported by 'to_memory_map'. */ | |
596 | void (*to_flash_erase) (struct target_ops *, | |
597 | ULONGEST address, LONGEST length); | |
598 | ||
599 | /* Finishes a flash memory write sequence. After this operation | |
600 | all flash memory should be available for writing and the result | |
601 | of reading from areas written by 'to_flash_write' should be | |
602 | equal to what was written. */ | |
603 | void (*to_flash_done) (struct target_ops *); | |
604 | ||
424163ea DJ |
605 | /* Describe the architecture-specific features of this target. |
606 | Returns the description found, or NULL if no description | |
607 | was available. */ | |
608 | const struct target_desc *(*to_read_description) (struct target_ops *ops); | |
609 | ||
0ef643c8 JB |
610 | /* Build the PTID of the thread on which a given task is running, |
611 | based on LWP and THREAD. These values are extracted from the | |
612 | task Private_Data section of the Ada Task Control Block, and | |
613 | their interpretation depends on the target. */ | |
614 | ptid_t (*to_get_ada_task_ptid) (long lwp, long thread); | |
615 | ||
c47ffbe3 VP |
616 | /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
617 | Return 0 if *READPTR is already at the end of the buffer. | |
618 | Return -1 if there is insufficient buffer for a whole entry. | |
619 | Return 1 if an entry was read into *TYPEP and *VALP. */ | |
620 | int (*to_auxv_parse) (struct target_ops *ops, gdb_byte **readptr, | |
621 | gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp); | |
622 | ||
08388c79 DE |
623 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
624 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
625 | ||
626 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
627 | requiring halting of the search (e.g. memory read error). | |
628 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
629 | int (*to_search_memory) (struct target_ops *ops, | |
630 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
631 | const gdb_byte *pattern, ULONGEST pattern_len, | |
632 | CORE_ADDR *found_addrp); | |
633 | ||
b2175913 | 634 | /* Can target execute in reverse? */ |
2c0b251b | 635 | int (*to_can_execute_reverse) (void); |
b2175913 | 636 | |
8a305172 PA |
637 | /* Does this target support debugging multiple processes |
638 | simultaneously? */ | |
639 | int (*to_supports_multi_process) (void); | |
640 | ||
3a8f7b07 JK |
641 | /* Determine current architecture of thread PTID. |
642 | ||
643 | The target is supposed to determine the architecture of the code where | |
644 | the target is currently stopped at (on Cell, if a target is in spu_run, | |
645 | to_thread_architecture would return SPU, otherwise PPC32 or PPC64). | |
646 | This is architecture used to perform decr_pc_after_break adjustment, | |
647 | and also determines the frame architecture of the innermost frame. | |
648 | ptrace operations need to operate according to target_gdbarch. | |
649 | ||
650 | The default implementation always returns target_gdbarch. */ | |
c2250ad1 UW |
651 | struct gdbarch *(*to_thread_architecture) (struct target_ops *, ptid_t); |
652 | ||
c0694254 PA |
653 | /* Determine current address space of thread PTID. |
654 | ||
655 | The default implementation always returns the inferior's | |
656 | address space. */ | |
657 | struct address_space *(*to_thread_address_space) (struct target_ops *, | |
658 | ptid_t); | |
659 | ||
35b1e5cc SS |
660 | /* Tracepoint-related operations. */ |
661 | ||
662 | /* Prepare the target for a tracing run. */ | |
663 | void (*to_trace_init) (void); | |
664 | ||
665 | /* Send full details of a tracepoint to the target. */ | |
666 | void (*to_download_tracepoint) (struct breakpoint *t); | |
667 | ||
668 | /* Send full details of a trace state variable to the target. */ | |
669 | void (*to_download_trace_state_variable) (struct trace_state_variable *tsv); | |
670 | ||
671 | /* Inform the target info of memory regions that are readonly | |
672 | (such as text sections), and so it should return data from | |
673 | those rather than look in the trace buffer. */ | |
674 | void (*to_trace_set_readonly_regions) (void); | |
675 | ||
676 | /* Start a trace run. */ | |
677 | void (*to_trace_start) (void); | |
678 | ||
679 | /* Get the current status of a tracing run. */ | |
00bf0b85 | 680 | int (*to_get_trace_status) (struct trace_status *ts); |
35b1e5cc SS |
681 | |
682 | /* Stop a trace run. */ | |
683 | void (*to_trace_stop) (void); | |
684 | ||
685 | /* Ask the target to find a trace frame of the given type TYPE, | |
686 | using NUM, ADDR1, and ADDR2 as search parameters. Returns the | |
687 | number of the trace frame, and also the tracepoint number at | |
c378eb4e | 688 | TPP. If no trace frame matches, return -1. May throw if the |
f197e0f1 | 689 | operation fails. */ |
35b1e5cc SS |
690 | int (*to_trace_find) (enum trace_find_type type, int num, |
691 | ULONGEST addr1, ULONGEST addr2, int *tpp); | |
692 | ||
693 | /* Get the value of the trace state variable number TSV, returning | |
694 | 1 if the value is known and writing the value itself into the | |
695 | location pointed to by VAL, else returning 0. */ | |
696 | int (*to_get_trace_state_variable_value) (int tsv, LONGEST *val); | |
697 | ||
011aacb0 | 698 | int (*to_save_trace_data) (const char *filename); |
00bf0b85 SS |
699 | |
700 | int (*to_upload_tracepoints) (struct uploaded_tp **utpp); | |
701 | ||
702 | int (*to_upload_trace_state_variables) (struct uploaded_tsv **utsvp); | |
703 | ||
704 | LONGEST (*to_get_raw_trace_data) (gdb_byte *buf, | |
705 | ULONGEST offset, LONGEST len); | |
706 | ||
35b1e5cc SS |
707 | /* Set the target's tracing behavior in response to unexpected |
708 | disconnection - set VAL to 1 to keep tracing, 0 to stop. */ | |
709 | void (*to_set_disconnected_tracing) (int val); | |
4daf5ac0 | 710 | void (*to_set_circular_trace_buffer) (int val); |
35b1e5cc | 711 | |
dc146f7c VP |
712 | /* Return the processor core that thread PTID was last seen on. |
713 | This information is updated only when: | |
714 | - update_thread_list is called | |
715 | - thread stops | |
3e43a32a MS |
716 | If the core cannot be determined -- either for the specified |
717 | thread, or right now, or in this debug session, or for this | |
718 | target -- return -1. */ | |
dc146f7c VP |
719 | int (*to_core_of_thread) (struct target_ops *, ptid_t ptid); |
720 | ||
4a5e7a5b PA |
721 | /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range |
722 | matches the contents of [DATA,DATA+SIZE). Returns 1 if there's | |
723 | a match, 0 if there's a mismatch, and -1 if an error is | |
724 | encountered while reading memory. */ | |
725 | int (*to_verify_memory) (struct target_ops *, const gdb_byte *data, | |
726 | CORE_ADDR memaddr, ULONGEST size); | |
727 | ||
711e434b PM |
728 | /* Return the address of the start of the Thread Information Block |
729 | a Windows OS specific feature. */ | |
730 | int (*to_get_tib_address) (ptid_t ptid, CORE_ADDR *addr); | |
731 | ||
d914c394 SS |
732 | /* Send the new settings of write permission variables. */ |
733 | void (*to_set_permissions) (void); | |
734 | ||
0fb4aa4b PA |
735 | /* Look for a static tracepoint marker at ADDR, and fill in MARKER |
736 | with its details. Return 1 on success, 0 on failure. */ | |
737 | int (*to_static_tracepoint_marker_at) (CORE_ADDR, | |
738 | struct static_tracepoint_marker *marker); | |
739 | ||
740 | /* Return a vector of all tracepoints markers string id ID, or all | |
741 | markers if ID is NULL. */ | |
742 | VEC(static_tracepoint_marker_p) *(*to_static_tracepoint_markers_by_strid) | |
743 | (const char *id); | |
744 | ||
b3b9301e PA |
745 | /* Return a traceframe info object describing the current |
746 | traceframe's contents. This method should not cache data; | |
747 | higher layers take care of caching, invalidating, and | |
748 | re-fetching when necessary. */ | |
749 | struct traceframe_info *(*to_traceframe_info) (void); | |
750 | ||
c5aa993b | 751 | int to_magic; |
0d06e24b JM |
752 | /* Need sub-structure for target machine related rather than comm related? |
753 | */ | |
c5aa993b | 754 | }; |
c906108c SS |
755 | |
756 | /* Magic number for checking ops size. If a struct doesn't end with this | |
757 | number, somebody changed the declaration but didn't change all the | |
758 | places that initialize one. */ | |
759 | ||
760 | #define OPS_MAGIC 3840 | |
761 | ||
762 | /* The ops structure for our "current" target process. This should | |
763 | never be NULL. If there is no target, it points to the dummy_target. */ | |
764 | ||
c5aa993b | 765 | extern struct target_ops current_target; |
c906108c | 766 | |
c906108c SS |
767 | /* Define easy words for doing these operations on our current target. */ |
768 | ||
769 | #define target_shortname (current_target.to_shortname) | |
770 | #define target_longname (current_target.to_longname) | |
771 | ||
f1c07ab0 AC |
772 | /* Does whatever cleanup is required for a target that we are no |
773 | longer going to be calling. QUITTING indicates that GDB is exiting | |
774 | and should not get hung on an error (otherwise it is important to | |
775 | perform clean termination, even if it takes a while). This routine | |
776 | is automatically always called when popping the target off the | |
777 | target stack (to_beneath is undefined). Closing file descriptors | |
778 | and freeing all memory allocated memory are typical things it | |
779 | should do. */ | |
780 | ||
781 | void target_close (struct target_ops *targ, int quitting); | |
c906108c SS |
782 | |
783 | /* Attaches to a process on the target side. Arguments are as passed | |
784 | to the `attach' command by the user. This routine can be called | |
785 | when the target is not on the target-stack, if the target_can_run | |
2146d243 | 786 | routine returns 1; in that case, it must push itself onto the stack. |
c906108c | 787 | Upon exit, the target should be ready for normal operations, and |
2146d243 | 788 | should be ready to deliver the status of the process immediately |
c906108c SS |
789 | (without waiting) to an upcoming target_wait call. */ |
790 | ||
136d6dae | 791 | void target_attach (char *, int); |
c906108c | 792 | |
dc177b7a PA |
793 | /* Some targets don't generate traps when attaching to the inferior, |
794 | or their target_attach implementation takes care of the waiting. | |
795 | These targets must set to_attach_no_wait. */ | |
796 | ||
797 | #define target_attach_no_wait \ | |
798 | (current_target.to_attach_no_wait) | |
799 | ||
c906108c SS |
800 | /* The target_attach operation places a process under debugger control, |
801 | and stops the process. | |
802 | ||
803 | This operation provides a target-specific hook that allows the | |
0d06e24b | 804 | necessary bookkeeping to be performed after an attach completes. */ |
c906108c | 805 | #define target_post_attach(pid) \ |
0d06e24b | 806 | (*current_target.to_post_attach) (pid) |
c906108c | 807 | |
c906108c SS |
808 | /* Takes a program previously attached to and detaches it. |
809 | The program may resume execution (some targets do, some don't) and will | |
810 | no longer stop on signals, etc. We better not have left any breakpoints | |
811 | in the program or it'll die when it hits one. ARGS is arguments | |
812 | typed by the user (e.g. a signal to send the process). FROM_TTY | |
813 | says whether to be verbose or not. */ | |
814 | ||
a14ed312 | 815 | extern void target_detach (char *, int); |
c906108c | 816 | |
6ad8ae5c DJ |
817 | /* Disconnect from the current target without resuming it (leaving it |
818 | waiting for a debugger). */ | |
819 | ||
820 | extern void target_disconnect (char *, int); | |
821 | ||
39f77062 | 822 | /* Resume execution of the target process PTID. STEP says whether to |
c906108c SS |
823 | single-step or to run free; SIGGNAL is the signal to be given to |
824 | the target, or TARGET_SIGNAL_0 for no signal. The caller may not | |
825 | pass TARGET_SIGNAL_DEFAULT. */ | |
826 | ||
e1ac3328 | 827 | extern void target_resume (ptid_t ptid, int step, enum target_signal signal); |
c906108c | 828 | |
b5a2688f AC |
829 | /* Wait for process pid to do something. PTID = -1 to wait for any |
830 | pid to do something. Return pid of child, or -1 in case of error; | |
c906108c | 831 | store status through argument pointer STATUS. Note that it is |
b5a2688f | 832 | _NOT_ OK to throw_exception() out of target_wait() without popping |
c906108c SS |
833 | the debugging target from the stack; GDB isn't prepared to get back |
834 | to the prompt with a debugging target but without the frame cache, | |
47608cb1 PA |
835 | stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W* |
836 | options. */ | |
c906108c | 837 | |
47608cb1 PA |
838 | extern ptid_t target_wait (ptid_t ptid, struct target_waitstatus *status, |
839 | int options); | |
c906108c | 840 | |
17dee195 | 841 | /* Fetch at least register REGNO, or all regs if regno == -1. No result. */ |
c906108c | 842 | |
28439f5e | 843 | extern void target_fetch_registers (struct regcache *regcache, int regno); |
c906108c SS |
844 | |
845 | /* Store at least register REGNO, or all regs if REGNO == -1. | |
846 | It can store as many registers as it wants to, so target_prepare_to_store | |
847 | must have been previously called. Calls error() if there are problems. */ | |
848 | ||
28439f5e | 849 | extern void target_store_registers (struct regcache *regcache, int regs); |
c906108c SS |
850 | |
851 | /* Get ready to modify the registers array. On machines which store | |
852 | individual registers, this doesn't need to do anything. On machines | |
853 | which store all the registers in one fell swoop, this makes sure | |
854 | that REGISTERS contains all the registers from the program being | |
855 | debugged. */ | |
856 | ||
316f2060 UW |
857 | #define target_prepare_to_store(regcache) \ |
858 | (*current_target.to_prepare_to_store) (regcache) | |
c906108c | 859 | |
6c95b8df PA |
860 | /* Determine current address space of thread PTID. */ |
861 | ||
862 | struct address_space *target_thread_address_space (ptid_t); | |
863 | ||
8a305172 PA |
864 | /* Returns true if this target can debug multiple processes |
865 | simultaneously. */ | |
866 | ||
867 | #define target_supports_multi_process() \ | |
868 | (*current_target.to_supports_multi_process) () | |
869 | ||
4e5d721f DE |
870 | /* Invalidate all target dcaches. */ |
871 | extern void target_dcache_invalidate (void); | |
4930751a | 872 | |
a14ed312 | 873 | extern int target_read_string (CORE_ADDR, char **, int, int *); |
c906108c | 874 | |
fc1a4b47 | 875 | extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len); |
c906108c | 876 | |
4e5d721f DE |
877 | extern int target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, int len); |
878 | ||
fc1a4b47 | 879 | extern int target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, |
10e2d419 | 880 | int len); |
c906108c | 881 | |
fd79ecee DJ |
882 | /* Fetches the target's memory map. If one is found it is sorted |
883 | and returned, after some consistency checking. Otherwise, NULL | |
884 | is returned. */ | |
885 | VEC(mem_region_s) *target_memory_map (void); | |
886 | ||
a76d924d DJ |
887 | /* Erase the specified flash region. */ |
888 | void target_flash_erase (ULONGEST address, LONGEST length); | |
889 | ||
890 | /* Finish a sequence of flash operations. */ | |
891 | void target_flash_done (void); | |
892 | ||
893 | /* Describes a request for a memory write operation. */ | |
894 | struct memory_write_request | |
895 | { | |
c378eb4e | 896 | /* Begining address that must be written. */ |
a76d924d | 897 | ULONGEST begin; |
c378eb4e | 898 | /* Past-the-end address. */ |
a76d924d | 899 | ULONGEST end; |
c378eb4e | 900 | /* The data to write. */ |
a76d924d DJ |
901 | gdb_byte *data; |
902 | /* A callback baton for progress reporting for this request. */ | |
903 | void *baton; | |
904 | }; | |
905 | typedef struct memory_write_request memory_write_request_s; | |
906 | DEF_VEC_O(memory_write_request_s); | |
907 | ||
908 | /* Enumeration specifying different flash preservation behaviour. */ | |
909 | enum flash_preserve_mode | |
910 | { | |
911 | flash_preserve, | |
912 | flash_discard | |
913 | }; | |
914 | ||
915 | /* Write several memory blocks at once. This version can be more | |
916 | efficient than making several calls to target_write_memory, in | |
917 | particular because it can optimize accesses to flash memory. | |
918 | ||
919 | Moreover, this is currently the only memory access function in gdb | |
920 | that supports writing to flash memory, and it should be used for | |
921 | all cases where access to flash memory is desirable. | |
922 | ||
923 | REQUESTS is the vector (see vec.h) of memory_write_request. | |
924 | PRESERVE_FLASH_P indicates what to do with blocks which must be | |
925 | erased, but not completely rewritten. | |
926 | PROGRESS_CB is a function that will be periodically called to provide | |
927 | feedback to user. It will be called with the baton corresponding | |
928 | to the request currently being written. It may also be called | |
929 | with a NULL baton, when preserved flash sectors are being rewritten. | |
930 | ||
931 | The function returns 0 on success, and error otherwise. */ | |
932 | int target_write_memory_blocks (VEC(memory_write_request_s) *requests, | |
933 | enum flash_preserve_mode preserve_flash_p, | |
934 | void (*progress_cb) (ULONGEST, void *)); | |
935 | ||
47932f85 DJ |
936 | /* From infrun.c. */ |
937 | ||
3a3e9ee3 | 938 | extern int inferior_has_forked (ptid_t pid, ptid_t *child_pid); |
47932f85 | 939 | |
3a3e9ee3 | 940 | extern int inferior_has_vforked (ptid_t pid, ptid_t *child_pid); |
47932f85 | 941 | |
3a3e9ee3 | 942 | extern int inferior_has_execd (ptid_t pid, char **execd_pathname); |
47932f85 | 943 | |
a96d9b2e SDJ |
944 | extern int inferior_has_called_syscall (ptid_t pid, int *syscall_number); |
945 | ||
c906108c SS |
946 | /* Print a line about the current target. */ |
947 | ||
948 | #define target_files_info() \ | |
0d06e24b | 949 | (*current_target.to_files_info) (¤t_target) |
c906108c | 950 | |
8181d85f DJ |
951 | /* Insert a breakpoint at address BP_TGT->placed_address in the target |
952 | machine. Result is 0 for success, or an errno value. */ | |
c906108c | 953 | |
d914c394 SS |
954 | extern int target_insert_breakpoint (struct gdbarch *gdbarch, |
955 | struct bp_target_info *bp_tgt); | |
c906108c | 956 | |
8181d85f DJ |
957 | /* Remove a breakpoint at address BP_TGT->placed_address in the target |
958 | machine. Result is 0 for success, or an errno value. */ | |
c906108c | 959 | |
d914c394 SS |
960 | extern int target_remove_breakpoint (struct gdbarch *gdbarch, |
961 | struct bp_target_info *bp_tgt); | |
c906108c SS |
962 | |
963 | /* Initialize the terminal settings we record for the inferior, | |
964 | before we actually run the inferior. */ | |
965 | ||
966 | #define target_terminal_init() \ | |
0d06e24b | 967 | (*current_target.to_terminal_init) () |
c906108c SS |
968 | |
969 | /* Put the inferior's terminal settings into effect. | |
970 | This is preparation for starting or resuming the inferior. */ | |
971 | ||
d9d2d8b6 | 972 | extern void target_terminal_inferior (void); |
c906108c SS |
973 | |
974 | /* Put some of our terminal settings into effect, | |
975 | enough to get proper results from our output, | |
976 | but do not change into or out of RAW mode | |
977 | so that no input is discarded. | |
978 | ||
979 | After doing this, either terminal_ours or terminal_inferior | |
980 | should be called to get back to a normal state of affairs. */ | |
981 | ||
982 | #define target_terminal_ours_for_output() \ | |
0d06e24b | 983 | (*current_target.to_terminal_ours_for_output) () |
c906108c SS |
984 | |
985 | /* Put our terminal settings into effect. | |
986 | First record the inferior's terminal settings | |
987 | so they can be restored properly later. */ | |
988 | ||
989 | #define target_terminal_ours() \ | |
0d06e24b | 990 | (*current_target.to_terminal_ours) () |
c906108c | 991 | |
a790ad35 SC |
992 | /* Save our terminal settings. |
993 | This is called from TUI after entering or leaving the curses | |
994 | mode. Since curses modifies our terminal this call is here | |
995 | to take this change into account. */ | |
996 | ||
997 | #define target_terminal_save_ours() \ | |
998 | (*current_target.to_terminal_save_ours) () | |
999 | ||
c906108c SS |
1000 | /* Print useful information about our terminal status, if such a thing |
1001 | exists. */ | |
1002 | ||
1003 | #define target_terminal_info(arg, from_tty) \ | |
0d06e24b | 1004 | (*current_target.to_terminal_info) (arg, from_tty) |
c906108c SS |
1005 | |
1006 | /* Kill the inferior process. Make it go away. */ | |
1007 | ||
7d85a9c0 | 1008 | extern void target_kill (void); |
c906108c | 1009 | |
0d06e24b JM |
1010 | /* Load an executable file into the target process. This is expected |
1011 | to not only bring new code into the target process, but also to | |
1986bccd AS |
1012 | update GDB's symbol tables to match. |
1013 | ||
1014 | ARG contains command-line arguments, to be broken down with | |
1015 | buildargv (). The first non-switch argument is the filename to | |
1016 | load, FILE; the second is a number (as parsed by strtoul (..., ..., | |
1017 | 0)), which is an offset to apply to the load addresses of FILE's | |
1018 | sections. The target may define switches, or other non-switch | |
1019 | arguments, as it pleases. */ | |
c906108c | 1020 | |
11cf8741 | 1021 | extern void target_load (char *arg, int from_tty); |
c906108c | 1022 | |
39f77062 | 1023 | /* Start an inferior process and set inferior_ptid to its pid. |
c906108c SS |
1024 | EXEC_FILE is the file to run. |
1025 | ALLARGS is a string containing the arguments to the program. | |
1026 | ENV is the environment vector to pass. Errors reported with error(). | |
1027 | On VxWorks and various standalone systems, we ignore exec_file. */ | |
c5aa993b | 1028 | |
136d6dae VP |
1029 | void target_create_inferior (char *exec_file, char *args, |
1030 | char **env, int from_tty); | |
c906108c SS |
1031 | |
1032 | /* Some targets (such as ttrace-based HPUX) don't allow us to request | |
1033 | notification of inferior events such as fork and vork immediately | |
1034 | after the inferior is created. (This because of how gdb gets an | |
1035 | inferior created via invoking a shell to do it. In such a scenario, | |
1036 | if the shell init file has commands in it, the shell will fork and | |
1037 | exec for each of those commands, and we will see each such fork | |
1038 | event. Very bad.) | |
c5aa993b | 1039 | |
0d06e24b JM |
1040 | Such targets will supply an appropriate definition for this function. */ |
1041 | ||
39f77062 KB |
1042 | #define target_post_startup_inferior(ptid) \ |
1043 | (*current_target.to_post_startup_inferior) (ptid) | |
c906108c | 1044 | |
0d06e24b JM |
1045 | /* On some targets, we can catch an inferior fork or vfork event when |
1046 | it occurs. These functions insert/remove an already-created | |
77b06cd7 TJB |
1047 | catchpoint for such events. They return 0 for success, 1 if the |
1048 | catchpoint type is not supported and -1 for failure. */ | |
c906108c | 1049 | |
c906108c | 1050 | #define target_insert_fork_catchpoint(pid) \ |
0d06e24b | 1051 | (*current_target.to_insert_fork_catchpoint) (pid) |
c906108c SS |
1052 | |
1053 | #define target_remove_fork_catchpoint(pid) \ | |
0d06e24b | 1054 | (*current_target.to_remove_fork_catchpoint) (pid) |
c906108c SS |
1055 | |
1056 | #define target_insert_vfork_catchpoint(pid) \ | |
0d06e24b | 1057 | (*current_target.to_insert_vfork_catchpoint) (pid) |
c906108c SS |
1058 | |
1059 | #define target_remove_vfork_catchpoint(pid) \ | |
0d06e24b | 1060 | (*current_target.to_remove_vfork_catchpoint) (pid) |
c906108c | 1061 | |
6604731b DJ |
1062 | /* If the inferior forks or vforks, this function will be called at |
1063 | the next resume in order to perform any bookkeeping and fiddling | |
1064 | necessary to continue debugging either the parent or child, as | |
1065 | requested, and releasing the other. Information about the fork | |
1066 | or vfork event is available via get_last_target_status (). | |
1067 | This function returns 1 if the inferior should not be resumed | |
1068 | (i.e. there is another event pending). */ | |
0d06e24b | 1069 | |
ee057212 | 1070 | int target_follow_fork (int follow_child); |
c906108c SS |
1071 | |
1072 | /* On some targets, we can catch an inferior exec event when it | |
0d06e24b | 1073 | occurs. These functions insert/remove an already-created |
77b06cd7 TJB |
1074 | catchpoint for such events. They return 0 for success, 1 if the |
1075 | catchpoint type is not supported and -1 for failure. */ | |
0d06e24b | 1076 | |
c906108c | 1077 | #define target_insert_exec_catchpoint(pid) \ |
0d06e24b | 1078 | (*current_target.to_insert_exec_catchpoint) (pid) |
c5aa993b | 1079 | |
c906108c | 1080 | #define target_remove_exec_catchpoint(pid) \ |
0d06e24b | 1081 | (*current_target.to_remove_exec_catchpoint) (pid) |
c906108c | 1082 | |
a96d9b2e SDJ |
1083 | /* Syscall catch. |
1084 | ||
1085 | NEEDED is nonzero if any syscall catch (of any kind) is requested. | |
1086 | If NEEDED is zero, it means the target can disable the mechanism to | |
1087 | catch system calls because there are no more catchpoints of this type. | |
1088 | ||
1089 | ANY_COUNT is nonzero if a generic (filter-less) syscall catch is | |
1090 | being requested. In this case, both TABLE_SIZE and TABLE should | |
1091 | be ignored. | |
1092 | ||
1093 | TABLE_SIZE is the number of elements in TABLE. It only matters if | |
1094 | ANY_COUNT is zero. | |
1095 | ||
1096 | TABLE is an array of ints, indexed by syscall number. An element in | |
1097 | this array is nonzero if that syscall should be caught. This argument | |
77b06cd7 TJB |
1098 | only matters if ANY_COUNT is zero. |
1099 | ||
1100 | Return 0 for success, 1 if syscall catchpoints are not supported or -1 | |
1101 | for failure. */ | |
a96d9b2e SDJ |
1102 | |
1103 | #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \ | |
1104 | (*current_target.to_set_syscall_catchpoint) (pid, needed, any_count, \ | |
1105 | table_size, table) | |
1106 | ||
c906108c | 1107 | /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the |
0d06e24b JM |
1108 | exit code of PID, if any. */ |
1109 | ||
c906108c | 1110 | #define target_has_exited(pid,wait_status,exit_status) \ |
0d06e24b | 1111 | (*current_target.to_has_exited) (pid,wait_status,exit_status) |
c906108c SS |
1112 | |
1113 | /* The debugger has completed a blocking wait() call. There is now | |
2146d243 | 1114 | some process event that must be processed. This function should |
c906108c | 1115 | be defined by those targets that require the debugger to perform |
0d06e24b | 1116 | cleanup or internal state changes in response to the process event. */ |
c906108c SS |
1117 | |
1118 | /* The inferior process has died. Do what is right. */ | |
1119 | ||
136d6dae | 1120 | void target_mourn_inferior (void); |
c906108c SS |
1121 | |
1122 | /* Does target have enough data to do a run or attach command? */ | |
1123 | ||
1124 | #define target_can_run(t) \ | |
0d06e24b | 1125 | ((t)->to_can_run) () |
c906108c | 1126 | |
2455069d UW |
1127 | /* Set list of signals to be handled in the target. |
1128 | ||
1129 | PASS_SIGNALS is an array of size NSIG, indexed by target signal number | |
1130 | (enum target_signal). For every signal whose entry in this array is | |
1131 | non-zero, the target is allowed -but not required- to skip reporting | |
1132 | arrival of the signal to the GDB core by returning from target_wait, | |
1133 | and to pass the signal directly to the inferior instead. | |
1134 | ||
1135 | However, if the target is hardware single-stepping a thread that is | |
1136 | about to receive a signal, it needs to be reported in any case, even | |
1137 | if mentioned in a previous target_pass_signals call. */ | |
c906108c | 1138 | |
2455069d | 1139 | extern void target_pass_signals (int nsig, unsigned char *pass_signals); |
c906108c SS |
1140 | |
1141 | /* Check to see if a thread is still alive. */ | |
1142 | ||
28439f5e | 1143 | extern int target_thread_alive (ptid_t ptid); |
c906108c | 1144 | |
b83266a0 SS |
1145 | /* Query for new threads and add them to the thread list. */ |
1146 | ||
28439f5e | 1147 | extern void target_find_new_threads (void); |
b83266a0 | 1148 | |
0d06e24b JM |
1149 | /* Make target stop in a continuable fashion. (For instance, under |
1150 | Unix, this should act like SIGSTOP). This function is normally | |
1151 | used by GUIs to implement a stop button. */ | |
c906108c | 1152 | |
d914c394 | 1153 | extern void target_stop (ptid_t ptid); |
c906108c | 1154 | |
96baa820 JM |
1155 | /* Send the specified COMMAND to the target's monitor |
1156 | (shell,interpreter) for execution. The result of the query is | |
0d06e24b | 1157 | placed in OUTBUF. */ |
96baa820 JM |
1158 | |
1159 | #define target_rcmd(command, outbuf) \ | |
1160 | (*current_target.to_rcmd) (command, outbuf) | |
1161 | ||
1162 | ||
c906108c SS |
1163 | /* Does the target include all of memory, or only part of it? This |
1164 | determines whether we look up the target chain for other parts of | |
1165 | memory if this target can't satisfy a request. */ | |
1166 | ||
c35b1492 PA |
1167 | extern int target_has_all_memory_1 (void); |
1168 | #define target_has_all_memory target_has_all_memory_1 () | |
c906108c SS |
1169 | |
1170 | /* Does the target include memory? (Dummy targets don't.) */ | |
1171 | ||
c35b1492 PA |
1172 | extern int target_has_memory_1 (void); |
1173 | #define target_has_memory target_has_memory_1 () | |
c906108c SS |
1174 | |
1175 | /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until | |
1176 | we start a process.) */ | |
c5aa993b | 1177 | |
c35b1492 PA |
1178 | extern int target_has_stack_1 (void); |
1179 | #define target_has_stack target_has_stack_1 () | |
c906108c SS |
1180 | |
1181 | /* Does the target have registers? (Exec files don't.) */ | |
1182 | ||
c35b1492 PA |
1183 | extern int target_has_registers_1 (void); |
1184 | #define target_has_registers target_has_registers_1 () | |
c906108c SS |
1185 | |
1186 | /* Does the target have execution? Can we make it jump (through | |
52bb452f DJ |
1187 | hoops), or pop its stack a few times? This means that the current |
1188 | target is currently executing; for some targets, that's the same as | |
1189 | whether or not the target is capable of execution, but there are | |
1190 | also targets which can be current while not executing. In that | |
1191 | case this will become true after target_create_inferior or | |
1192 | target_attach. */ | |
c906108c | 1193 | |
aeaec162 TT |
1194 | extern int target_has_execution_1 (ptid_t); |
1195 | ||
1196 | /* Like target_has_execution_1, but always passes inferior_ptid. */ | |
1197 | ||
1198 | extern int target_has_execution_current (void); | |
1199 | ||
1200 | #define target_has_execution target_has_execution_current () | |
c35b1492 PA |
1201 | |
1202 | /* Default implementations for process_stratum targets. Return true | |
1203 | if there's a selected inferior, false otherwise. */ | |
1204 | ||
1205 | extern int default_child_has_all_memory (struct target_ops *ops); | |
1206 | extern int default_child_has_memory (struct target_ops *ops); | |
1207 | extern int default_child_has_stack (struct target_ops *ops); | |
1208 | extern int default_child_has_registers (struct target_ops *ops); | |
aeaec162 TT |
1209 | extern int default_child_has_execution (struct target_ops *ops, |
1210 | ptid_t the_ptid); | |
c906108c SS |
1211 | |
1212 | /* Can the target support the debugger control of thread execution? | |
d6350901 | 1213 | Can it lock the thread scheduler? */ |
c906108c SS |
1214 | |
1215 | #define target_can_lock_scheduler \ | |
0d06e24b | 1216 | (current_target.to_has_thread_control & tc_schedlock) |
c906108c | 1217 | |
c6ebd6cf VP |
1218 | /* Should the target enable async mode if it is supported? Temporary |
1219 | cludge until async mode is a strict superset of sync mode. */ | |
1220 | extern int target_async_permitted; | |
1221 | ||
c378eb4e | 1222 | /* Can the target support asynchronous execution? */ |
6426a772 JM |
1223 | #define target_can_async_p() (current_target.to_can_async_p ()) |
1224 | ||
c378eb4e | 1225 | /* Is the target in asynchronous execution mode? */ |
b84876c2 | 1226 | #define target_is_async_p() (current_target.to_is_async_p ()) |
6426a772 | 1227 | |
9908b566 VP |
1228 | int target_supports_non_stop (void); |
1229 | ||
c378eb4e | 1230 | /* Put the target in async mode with the specified callback function. */ |
0d06e24b | 1231 | #define target_async(CALLBACK,CONTEXT) \ |
b84876c2 | 1232 | (current_target.to_async ((CALLBACK), (CONTEXT))) |
43ff13b4 | 1233 | |
c378eb4e | 1234 | /* This is to be used ONLY within call_function_by_hand(). It provides |
04714b91 | 1235 | a workaround, to have inferior function calls done in sychronous |
c378eb4e | 1236 | mode, even though the target is asynchronous. After |
ed9a39eb JM |
1237 | target_async_mask(0) is called, calls to target_can_async_p() will |
1238 | return FALSE , so that target_resume() will not try to start the | |
c378eb4e | 1239 | target asynchronously. After the inferior stops, we IMMEDIATELY |
ed9a39eb | 1240 | restore the previous nature of the target, by calling |
c378eb4e MS |
1241 | target_async_mask(1). After that, target_can_async_p() will return |
1242 | TRUE. ANY OTHER USE OF THIS FEATURE IS DEPRECATED. | |
ed9a39eb JM |
1243 | |
1244 | FIXME ezannoni 1999-12-13: we won't need this once we move | |
1245 | the turning async on and off to the single execution commands, | |
0d06e24b | 1246 | from where it is done currently, in remote_resume(). */ |
ed9a39eb | 1247 | |
b84876c2 PA |
1248 | #define target_async_mask(MASK) \ |
1249 | (current_target.to_async_mask (MASK)) | |
ed9a39eb | 1250 | |
c906108c SS |
1251 | /* Converts a process id to a string. Usually, the string just contains |
1252 | `process xyz', but on some systems it may contain | |
1253 | `process xyz thread abc'. */ | |
1254 | ||
117de6a9 | 1255 | extern char *target_pid_to_str (ptid_t ptid); |
c906108c | 1256 | |
39f77062 | 1257 | extern char *normal_pid_to_str (ptid_t ptid); |
c5aa993b | 1258 | |
0d06e24b JM |
1259 | /* Return a short string describing extra information about PID, |
1260 | e.g. "sleeping", "runnable", "running on LWP 3". Null return value | |
1261 | is okay. */ | |
1262 | ||
1263 | #define target_extra_thread_info(TP) \ | |
1264 | (current_target.to_extra_thread_info (TP)) | |
ed9a39eb | 1265 | |
4694da01 TT |
1266 | /* Return the thread's name. A NULL result means that the target |
1267 | could not determine this thread's name. */ | |
1268 | ||
1269 | extern char *target_thread_name (struct thread_info *); | |
1270 | ||
c906108c SS |
1271 | /* Attempts to find the pathname of the executable file |
1272 | that was run to create a specified process. | |
1273 | ||
1274 | The process PID must be stopped when this operation is used. | |
c5aa993b | 1275 | |
c906108c SS |
1276 | If the executable file cannot be determined, NULL is returned. |
1277 | ||
1278 | Else, a pointer to a character string containing the pathname | |
1279 | is returned. This string should be copied into a buffer by | |
1280 | the client if the string will not be immediately used, or if | |
0d06e24b | 1281 | it must persist. */ |
c906108c SS |
1282 | |
1283 | #define target_pid_to_exec_file(pid) \ | |
0d06e24b | 1284 | (current_target.to_pid_to_exec_file) (pid) |
c906108c | 1285 | |
3a8f7b07 | 1286 | /* See the to_thread_architecture description in struct target_ops. */ |
c2250ad1 UW |
1287 | |
1288 | #define target_thread_architecture(ptid) \ | |
1289 | (current_target.to_thread_architecture (¤t_target, ptid)) | |
1290 | ||
be4d1333 MS |
1291 | /* |
1292 | * Iterator function for target memory regions. | |
1293 | * Calls a callback function once for each memory region 'mapped' | |
1294 | * in the child process. Defined as a simple macro rather than | |
2146d243 | 1295 | * as a function macro so that it can be tested for nullity. |
be4d1333 MS |
1296 | */ |
1297 | ||
1298 | #define target_find_memory_regions(FUNC, DATA) \ | |
1299 | (current_target.to_find_memory_regions) (FUNC, DATA) | |
1300 | ||
1301 | /* | |
1302 | * Compose corefile .note section. | |
1303 | */ | |
1304 | ||
1305 | #define target_make_corefile_notes(BFD, SIZE_P) \ | |
1306 | (current_target.to_make_corefile_notes) (BFD, SIZE_P) | |
1307 | ||
6b04bdb7 MS |
1308 | /* Bookmark interfaces. */ |
1309 | #define target_get_bookmark(ARGS, FROM_TTY) \ | |
1310 | (current_target.to_get_bookmark) (ARGS, FROM_TTY) | |
1311 | ||
1312 | #define target_goto_bookmark(ARG, FROM_TTY) \ | |
1313 | (current_target.to_goto_bookmark) (ARG, FROM_TTY) | |
1314 | ||
c906108c SS |
1315 | /* Hardware watchpoint interfaces. */ |
1316 | ||
1317 | /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or | |
7f82dfc7 | 1318 | write). Only the INFERIOR_PTID task is being queried. */ |
c906108c | 1319 | |
d92524f1 PM |
1320 | #define target_stopped_by_watchpoint \ |
1321 | (*current_target.to_stopped_by_watchpoint) | |
7df1a324 | 1322 | |
74174d2e UW |
1323 | /* Non-zero if we have steppable watchpoints */ |
1324 | ||
d92524f1 | 1325 | #define target_have_steppable_watchpoint \ |
74174d2e | 1326 | (current_target.to_have_steppable_watchpoint) |
74174d2e | 1327 | |
7df1a324 KW |
1328 | /* Non-zero if we have continuable watchpoints */ |
1329 | ||
d92524f1 | 1330 | #define target_have_continuable_watchpoint \ |
7df1a324 | 1331 | (current_target.to_have_continuable_watchpoint) |
c906108c | 1332 | |
ccaa32c7 | 1333 | /* Provide defaults for hardware watchpoint functions. */ |
c906108c | 1334 | |
2146d243 | 1335 | /* If the *_hw_beakpoint functions have not been defined |
ccaa32c7 | 1336 | elsewhere use the definitions in the target vector. */ |
c906108c SS |
1337 | |
1338 | /* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is | |
1339 | one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or | |
1340 | bp_hardware_breakpoint. CNT is the number of such watchpoints used so far | |
1341 | (including this one?). OTHERTYPE is who knows what... */ | |
1342 | ||
d92524f1 | 1343 | #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \ |
ccaa32c7 | 1344 | (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE); |
c906108c | 1345 | |
e09342b5 TJB |
1346 | /* Returns the number of debug registers needed to watch the given |
1347 | memory region, or zero if not supported. */ | |
1348 | ||
d92524f1 | 1349 | #define target_region_ok_for_hw_watchpoint(addr, len) \ |
e0d24f8d | 1350 | (*current_target.to_region_ok_for_hw_watchpoint) (addr, len) |
e0d24f8d | 1351 | |
c906108c | 1352 | |
85d721b8 PA |
1353 | /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes. |
1354 | TYPE is 0 for write, 1 for read, and 2 for read/write accesses. | |
0cf6dd15 | 1355 | COND is the expression for its condition, or NULL if there's none. |
85d721b8 PA |
1356 | Returns 0 for success, 1 if the watchpoint type is not supported, |
1357 | -1 for failure. */ | |
c906108c | 1358 | |
0cf6dd15 TJB |
1359 | #define target_insert_watchpoint(addr, len, type, cond) \ |
1360 | (*current_target.to_insert_watchpoint) (addr, len, type, cond) | |
c906108c | 1361 | |
0cf6dd15 TJB |
1362 | #define target_remove_watchpoint(addr, len, type, cond) \ |
1363 | (*current_target.to_remove_watchpoint) (addr, len, type, cond) | |
c906108c | 1364 | |
a6d9a66e UW |
1365 | #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \ |
1366 | (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt) | |
ccaa32c7 | 1367 | |
a6d9a66e UW |
1368 | #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \ |
1369 | (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt) | |
c906108c | 1370 | |
f1310107 TJB |
1371 | /* Return number of debug registers needed for a ranged breakpoint, |
1372 | or -1 if ranged breakpoints are not supported. */ | |
1373 | ||
1374 | extern int target_ranged_break_num_registers (void); | |
1375 | ||
7f82dfc7 JK |
1376 | /* Return non-zero if target knows the data address which triggered this |
1377 | target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the | |
1378 | INFERIOR_PTID task is being queried. */ | |
1379 | #define target_stopped_data_address(target, addr_p) \ | |
1380 | (*target.to_stopped_data_address) (target, addr_p) | |
c906108c | 1381 | |
5009afc5 AS |
1382 | #define target_watchpoint_addr_within_range(target, addr, start, length) \ |
1383 | (*target.to_watchpoint_addr_within_range) (target, addr, start, length) | |
1384 | ||
0cf6dd15 TJB |
1385 | /* Return non-zero if the target is capable of using hardware to evaluate |
1386 | the condition expression. In this case, if the condition is false when | |
1387 | the watched memory location changes, execution may continue without the | |
1388 | debugger being notified. | |
1389 | ||
1390 | Due to limitations in the hardware implementation, it may be capable of | |
1391 | avoiding triggering the watchpoint in some cases where the condition | |
1392 | expression is false, but may report some false positives as well. | |
1393 | For this reason, GDB will still evaluate the condition expression when | |
1394 | the watchpoint triggers. */ | |
1395 | #define target_can_accel_watchpoint_condition(addr, len, type, cond) \ | |
1396 | (*current_target.to_can_accel_watchpoint_condition) (addr, len, type, cond) | |
1397 | ||
b2175913 MS |
1398 | /* Target can execute in reverse? */ |
1399 | #define target_can_execute_reverse \ | |
1400 | (current_target.to_can_execute_reverse ? \ | |
1401 | current_target.to_can_execute_reverse () : 0) | |
1402 | ||
424163ea DJ |
1403 | extern const struct target_desc *target_read_description (struct target_ops *); |
1404 | ||
0ef643c8 JB |
1405 | #define target_get_ada_task_ptid(lwp, tid) \ |
1406 | (*current_target.to_get_ada_task_ptid) (lwp,tid) | |
1407 | ||
08388c79 DE |
1408 | /* Utility implementation of searching memory. */ |
1409 | extern int simple_search_memory (struct target_ops* ops, | |
1410 | CORE_ADDR start_addr, | |
1411 | ULONGEST search_space_len, | |
1412 | const gdb_byte *pattern, | |
1413 | ULONGEST pattern_len, | |
1414 | CORE_ADDR *found_addrp); | |
1415 | ||
1416 | /* Main entry point for searching memory. */ | |
1417 | extern int target_search_memory (CORE_ADDR start_addr, | |
1418 | ULONGEST search_space_len, | |
1419 | const gdb_byte *pattern, | |
1420 | ULONGEST pattern_len, | |
1421 | CORE_ADDR *found_addrp); | |
1422 | ||
35b1e5cc SS |
1423 | /* Tracepoint-related operations. */ |
1424 | ||
1425 | #define target_trace_init() \ | |
1426 | (*current_target.to_trace_init) () | |
1427 | ||
1428 | #define target_download_tracepoint(t) \ | |
1429 | (*current_target.to_download_tracepoint) (t) | |
1430 | ||
1431 | #define target_download_trace_state_variable(tsv) \ | |
1432 | (*current_target.to_download_trace_state_variable) (tsv) | |
1433 | ||
1434 | #define target_trace_start() \ | |
1435 | (*current_target.to_trace_start) () | |
1436 | ||
1437 | #define target_trace_set_readonly_regions() \ | |
1438 | (*current_target.to_trace_set_readonly_regions) () | |
1439 | ||
00bf0b85 SS |
1440 | #define target_get_trace_status(ts) \ |
1441 | (*current_target.to_get_trace_status) (ts) | |
35b1e5cc SS |
1442 | |
1443 | #define target_trace_stop() \ | |
1444 | (*current_target.to_trace_stop) () | |
1445 | ||
1446 | #define target_trace_find(type,num,addr1,addr2,tpp) \ | |
1447 | (*current_target.to_trace_find) ((type), (num), (addr1), (addr2), (tpp)) | |
1448 | ||
1449 | #define target_get_trace_state_variable_value(tsv,val) \ | |
1450 | (*current_target.to_get_trace_state_variable_value) ((tsv), (val)) | |
1451 | ||
00bf0b85 SS |
1452 | #define target_save_trace_data(filename) \ |
1453 | (*current_target.to_save_trace_data) (filename) | |
1454 | ||
1455 | #define target_upload_tracepoints(utpp) \ | |
1456 | (*current_target.to_upload_tracepoints) (utpp) | |
1457 | ||
1458 | #define target_upload_trace_state_variables(utsvp) \ | |
1459 | (*current_target.to_upload_trace_state_variables) (utsvp) | |
1460 | ||
1461 | #define target_get_raw_trace_data(buf,offset,len) \ | |
1462 | (*current_target.to_get_raw_trace_data) ((buf), (offset), (len)) | |
1463 | ||
35b1e5cc SS |
1464 | #define target_set_disconnected_tracing(val) \ |
1465 | (*current_target.to_set_disconnected_tracing) (val) | |
1466 | ||
4daf5ac0 SS |
1467 | #define target_set_circular_trace_buffer(val) \ |
1468 | (*current_target.to_set_circular_trace_buffer) (val) | |
1469 | ||
711e434b PM |
1470 | #define target_get_tib_address(ptid, addr) \ |
1471 | (*current_target.to_get_tib_address) ((ptid), (addr)) | |
1472 | ||
d914c394 SS |
1473 | #define target_set_permissions() \ |
1474 | (*current_target.to_set_permissions) () | |
1475 | ||
0fb4aa4b PA |
1476 | #define target_static_tracepoint_marker_at(addr, marker) \ |
1477 | (*current_target.to_static_tracepoint_marker_at) (addr, marker) | |
1478 | ||
1479 | #define target_static_tracepoint_markers_by_strid(marker_id) \ | |
1480 | (*current_target.to_static_tracepoint_markers_by_strid) (marker_id) | |
1481 | ||
b3b9301e PA |
1482 | #define target_traceframe_info() \ |
1483 | (*current_target.to_traceframe_info) () | |
1484 | ||
49d03eab MR |
1485 | /* Command logging facility. */ |
1486 | ||
1487 | #define target_log_command(p) \ | |
1488 | do \ | |
1489 | if (current_target.to_log_command) \ | |
1490 | (*current_target.to_log_command) (p); \ | |
1491 | while (0) | |
1492 | ||
dc146f7c VP |
1493 | |
1494 | extern int target_core_of_thread (ptid_t ptid); | |
1495 | ||
4a5e7a5b PA |
1496 | /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches |
1497 | the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0 | |
1498 | if there's a mismatch, and -1 if an error is encountered while | |
1499 | reading memory. Throws an error if the functionality is found not | |
1500 | to be supported by the current target. */ | |
1501 | int target_verify_memory (const gdb_byte *data, | |
1502 | CORE_ADDR memaddr, ULONGEST size); | |
1503 | ||
c906108c SS |
1504 | /* Routines for maintenance of the target structures... |
1505 | ||
1506 | add_target: Add a target to the list of all possible targets. | |
1507 | ||
1508 | push_target: Make this target the top of the stack of currently used | |
c5aa993b JM |
1509 | targets, within its particular stratum of the stack. Result |
1510 | is 0 if now atop the stack, nonzero if not on top (maybe | |
1511 | should warn user). | |
c906108c SS |
1512 | |
1513 | unpush_target: Remove this from the stack of currently used targets, | |
c5aa993b JM |
1514 | no matter where it is on the list. Returns 0 if no |
1515 | change, 1 if removed from stack. | |
c906108c | 1516 | |
c5aa993b | 1517 | pop_target: Remove the top thing on the stack of current targets. */ |
c906108c | 1518 | |
a14ed312 | 1519 | extern void add_target (struct target_ops *); |
c906108c | 1520 | |
b26a4dcb | 1521 | extern void push_target (struct target_ops *); |
c906108c | 1522 | |
a14ed312 | 1523 | extern int unpush_target (struct target_ops *); |
c906108c | 1524 | |
fd79ecee DJ |
1525 | extern void target_pre_inferior (int); |
1526 | ||
a14ed312 | 1527 | extern void target_preopen (int); |
c906108c | 1528 | |
a14ed312 | 1529 | extern void pop_target (void); |
c906108c | 1530 | |
aa76d38d PA |
1531 | /* Does whatever cleanup is required to get rid of all pushed targets. |
1532 | QUITTING is propagated to target_close; it indicates that GDB is | |
1533 | exiting and should not get hung on an error (otherwise it is | |
1534 | important to perform clean termination, even if it takes a | |
1535 | while). */ | |
1536 | extern void pop_all_targets (int quitting); | |
1537 | ||
87ab71f0 PA |
1538 | /* Like pop_all_targets, but pops only targets whose stratum is |
1539 | strictly above ABOVE_STRATUM. */ | |
1540 | extern void pop_all_targets_above (enum strata above_stratum, int quitting); | |
1541 | ||
c0edd9ed JK |
1542 | extern int target_is_pushed (struct target_ops *t); |
1543 | ||
9e35dae4 DJ |
1544 | extern CORE_ADDR target_translate_tls_address (struct objfile *objfile, |
1545 | CORE_ADDR offset); | |
1546 | ||
0542c86d | 1547 | /* Struct target_section maps address ranges to file sections. It is |
c906108c SS |
1548 | mostly used with BFD files, but can be used without (e.g. for handling |
1549 | raw disks, or files not in formats handled by BFD). */ | |
1550 | ||
0542c86d | 1551 | struct target_section |
c5aa993b JM |
1552 | { |
1553 | CORE_ADDR addr; /* Lowest address in section */ | |
1554 | CORE_ADDR endaddr; /* 1+highest address in section */ | |
c906108c | 1555 | |
7be0c536 | 1556 | struct bfd_section *the_bfd_section; |
c906108c | 1557 | |
c5aa993b JM |
1558 | bfd *bfd; /* BFD file pointer */ |
1559 | }; | |
c906108c | 1560 | |
07b82ea5 PA |
1561 | /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */ |
1562 | ||
1563 | struct target_section_table | |
1564 | { | |
1565 | struct target_section *sections; | |
1566 | struct target_section *sections_end; | |
1567 | }; | |
1568 | ||
8db32d44 | 1569 | /* Return the "section" containing the specified address. */ |
0542c86d PA |
1570 | struct target_section *target_section_by_addr (struct target_ops *target, |
1571 | CORE_ADDR addr); | |
8db32d44 | 1572 | |
07b82ea5 PA |
1573 | /* Return the target section table this target (or the targets |
1574 | beneath) currently manipulate. */ | |
1575 | ||
1576 | extern struct target_section_table *target_get_section_table | |
1577 | (struct target_ops *target); | |
1578 | ||
c906108c SS |
1579 | /* From mem-break.c */ |
1580 | ||
3e43a32a MS |
1581 | extern int memory_remove_breakpoint (struct gdbarch *, |
1582 | struct bp_target_info *); | |
c906108c | 1583 | |
3e43a32a MS |
1584 | extern int memory_insert_breakpoint (struct gdbarch *, |
1585 | struct bp_target_info *); | |
c906108c | 1586 | |
3e43a32a MS |
1587 | extern int default_memory_remove_breakpoint (struct gdbarch *, |
1588 | struct bp_target_info *); | |
917317f4 | 1589 | |
3e43a32a MS |
1590 | extern int default_memory_insert_breakpoint (struct gdbarch *, |
1591 | struct bp_target_info *); | |
917317f4 | 1592 | |
c906108c SS |
1593 | |
1594 | /* From target.c */ | |
1595 | ||
a14ed312 | 1596 | extern void initialize_targets (void); |
c906108c | 1597 | |
c25c4a8b | 1598 | extern void noprocess (void) ATTRIBUTE_NORETURN; |
c906108c | 1599 | |
8edfe269 DJ |
1600 | extern void target_require_runnable (void); |
1601 | ||
136d6dae | 1602 | extern void find_default_attach (struct target_ops *, char *, int); |
c906108c | 1603 | |
136d6dae VP |
1604 | extern void find_default_create_inferior (struct target_ops *, |
1605 | char *, char *, char **, int); | |
c906108c | 1606 | |
a14ed312 | 1607 | extern struct target_ops *find_run_target (void); |
7a292a7a | 1608 | |
a14ed312 | 1609 | extern struct target_ops *find_target_beneath (struct target_ops *); |
ed9a39eb | 1610 | |
e0665bc8 PA |
1611 | /* Read OS data object of type TYPE from the target, and return it in |
1612 | XML format. The result is NUL-terminated and returned as a string, | |
1613 | allocated using xmalloc. If an error occurs or the transfer is | |
1614 | unsupported, NULL is returned. Empty objects are returned as | |
1615 | allocated but empty strings. */ | |
1616 | ||
07e059b5 VP |
1617 | extern char *target_get_osdata (const char *type); |
1618 | ||
c906108c SS |
1619 | \f |
1620 | /* Stuff that should be shared among the various remote targets. */ | |
1621 | ||
1622 | /* Debugging level. 0 is off, and non-zero values mean to print some debug | |
1623 | information (higher values, more information). */ | |
1624 | extern int remote_debug; | |
1625 | ||
1626 | /* Speed in bits per second, or -1 which means don't mess with the speed. */ | |
1627 | extern int baud_rate; | |
c378eb4e | 1628 | /* Timeout limit for response from target. */ |
c906108c SS |
1629 | extern int remote_timeout; |
1630 | ||
c906108c SS |
1631 | \f |
1632 | /* Functions for helping to write a native target. */ | |
1633 | ||
1634 | /* This is for native targets which use a unix/POSIX-style waitstatus. */ | |
a14ed312 | 1635 | extern void store_waitstatus (struct target_waitstatus *, int); |
c906108c | 1636 | |
2aecd87f | 1637 | /* These are in common/signals.c, but they're only used by gdb. */ |
1cded358 AR |
1638 | extern enum target_signal default_target_signal_from_host (struct gdbarch *, |
1639 | int); | |
1640 | extern int default_target_signal_to_host (struct gdbarch *, | |
1641 | enum target_signal); | |
1642 | ||
c906108c | 1643 | /* Convert from a number used in a GDB command to an enum target_signal. */ |
a14ed312 | 1644 | extern enum target_signal target_signal_from_command (int); |
2aecd87f | 1645 | /* End of files in common/signals.c. */ |
c906108c | 1646 | |
8defab1a DJ |
1647 | /* Set the show memory breakpoints mode to show, and installs a cleanup |
1648 | to restore it back to the current value. */ | |
1649 | extern struct cleanup *make_show_memory_breakpoints_cleanup (int show); | |
1650 | ||
d914c394 SS |
1651 | extern int may_write_registers; |
1652 | extern int may_write_memory; | |
1653 | extern int may_insert_breakpoints; | |
1654 | extern int may_insert_tracepoints; | |
1655 | extern int may_insert_fast_tracepoints; | |
1656 | extern int may_stop; | |
1657 | ||
1658 | extern void update_target_permissions (void); | |
1659 | ||
c906108c | 1660 | \f |
c378eb4e | 1661 | /* Imported from machine dependent code. */ |
c906108c | 1662 | |
c378eb4e | 1663 | /* Blank target vector entries are initialized to target_ignore. */ |
a14ed312 | 1664 | void target_ignore (void); |
c906108c | 1665 | |
c5aa993b | 1666 | #endif /* !defined (TARGET_H) */ |