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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. */ | |
0e5bf2a8 PA |
154 | TARGET_WAITKIND_NO_HISTORY, |
155 | ||
156 | /* There are no resumed children left in the program. */ | |
157 | TARGET_WAITKIND_NO_RESUMED | |
c906108c SS |
158 | }; |
159 | ||
c5aa993b JM |
160 | struct target_waitstatus |
161 | { | |
162 | enum target_waitkind kind; | |
163 | ||
a96d9b2e SDJ |
164 | /* Forked child pid, execd pathname, exit status, signal number or |
165 | syscall number. */ | |
c5aa993b JM |
166 | union |
167 | { | |
168 | int integer; | |
169 | enum target_signal sig; | |
3a3e9ee3 | 170 | ptid_t related_pid; |
c5aa993b | 171 | char *execd_pathname; |
a96d9b2e | 172 | int syscall_number; |
c5aa993b JM |
173 | } |
174 | value; | |
175 | }; | |
c906108c | 176 | |
47608cb1 PA |
177 | /* Options that can be passed to target_wait. */ |
178 | ||
179 | /* Return immediately if there's no event already queued. If this | |
180 | options is not requested, target_wait blocks waiting for an | |
181 | event. */ | |
182 | #define TARGET_WNOHANG 1 | |
183 | ||
a96d9b2e SDJ |
184 | /* The structure below stores information about a system call. |
185 | It is basically used in the "catch syscall" command, and in | |
186 | every function that gives information about a system call. | |
187 | ||
188 | It's also good to mention that its fields represent everything | |
189 | that we currently know about a syscall in GDB. */ | |
190 | struct syscall | |
191 | { | |
192 | /* The syscall number. */ | |
193 | int number; | |
194 | ||
195 | /* The syscall name. */ | |
196 | const char *name; | |
197 | }; | |
198 | ||
f00150c9 DE |
199 | /* Return a pretty printed form of target_waitstatus. |
200 | Space for the result is malloc'd, caller must free. */ | |
201 | extern char *target_waitstatus_to_string (const struct target_waitstatus *); | |
202 | ||
2acceee2 | 203 | /* Possible types of events that the inferior handler will have to |
0d06e24b | 204 | deal with. */ |
2acceee2 JM |
205 | enum inferior_event_type |
206 | { | |
2acceee2 | 207 | /* Process a normal inferior event which will result in target_wait |
0d06e24b | 208 | being called. */ |
2146d243 | 209 | INF_REG_EVENT, |
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 | 257 | TARGET_OBJECT_LIBRARIES, |
2268b414 JK |
258 | /* Currently loaded libraries specific for SVR4 systems, in XML format. */ |
259 | TARGET_OBJECT_LIBRARIES_SVR4, | |
07e059b5 | 260 | /* Get OS specific data. The ANNEX specifies the type (running |
113a6f1e JB |
261 | processes, etc.). The data being transfered is expected to follow |
262 | the DTD specified in features/osdata.dtd. */ | |
4aa995e1 PA |
263 | TARGET_OBJECT_OSDATA, |
264 | /* Extra signal info. Usually the contents of `siginfo_t' on unix | |
265 | platforms. */ | |
266 | TARGET_OBJECT_SIGNAL_INFO, | |
dc146f7c VP |
267 | /* The list of threads that are being debugged. */ |
268 | TARGET_OBJECT_THREADS, | |
0fb4aa4b PA |
269 | /* Collected static trace data. */ |
270 | TARGET_OBJECT_STATIC_TRACE_DATA, | |
77ca787b JB |
271 | /* The HP-UX registers (those that can be obtained or modified by using |
272 | the TT_LWP_RUREGS/TT_LWP_WUREGS ttrace requests). */ | |
273 | TARGET_OBJECT_HPUX_UREGS, | |
c4de7027 JB |
274 | /* The HP-UX shared library linkage pointer. ANNEX should be a string |
275 | image of the code address whose linkage pointer we are looking for. | |
276 | ||
277 | The size of the data transfered is always 8 bytes (the size of an | |
278 | address on ia64). */ | |
279 | TARGET_OBJECT_HPUX_SOLIB_GOT, | |
b3b9301e PA |
280 | /* Traceframe info, in XML format. */ |
281 | TARGET_OBJECT_TRACEFRAME_INFO, | |
78d85199 YQ |
282 | /* Load maps for FDPIC systems. */ |
283 | TARGET_OBJECT_FDPIC, | |
f00c55f8 TG |
284 | /* Darwin dynamic linker info data. */ |
285 | TARGET_OBJECT_DARWIN_DYLD_INFO | |
c378eb4e | 286 | /* Possible future objects: TARGET_OBJECT_FILE, ... */ |
1e3ff5ad AC |
287 | }; |
288 | ||
35b1e5cc SS |
289 | /* Enumeration of the kinds of traceframe searches that a target may |
290 | be able to perform. */ | |
291 | ||
292 | enum trace_find_type | |
293 | { | |
294 | tfind_number, | |
295 | tfind_pc, | |
296 | tfind_tp, | |
297 | tfind_range, | |
298 | tfind_outside, | |
299 | }; | |
300 | ||
0fb4aa4b PA |
301 | typedef struct static_tracepoint_marker *static_tracepoint_marker_p; |
302 | DEF_VEC_P(static_tracepoint_marker_p); | |
303 | ||
13547ab6 DJ |
304 | /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
305 | OBJECT. The OFFSET, for a seekable object, specifies the | |
306 | starting point. The ANNEX can be used to provide additional | |
307 | data-specific information to the target. | |
1e3ff5ad | 308 | |
13547ab6 DJ |
309 | Return the number of bytes actually transfered, or -1 if the |
310 | transfer is not supported or otherwise fails. Return of a positive | |
311 | value less than LEN indicates that no further transfer is possible. | |
312 | Unlike the raw to_xfer_partial interface, callers of these | |
313 | functions do not need to retry partial transfers. */ | |
1e3ff5ad | 314 | |
1e3ff5ad AC |
315 | extern LONGEST target_read (struct target_ops *ops, |
316 | enum target_object object, | |
1b0ba102 | 317 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
318 | ULONGEST offset, LONGEST len); |
319 | ||
8dedea02 VP |
320 | struct memory_read_result |
321 | { | |
c378eb4e | 322 | /* First address that was read. */ |
8dedea02 VP |
323 | ULONGEST begin; |
324 | /* Past-the-end address. */ | |
325 | ULONGEST end; | |
326 | /* The data. */ | |
327 | gdb_byte *data; | |
328 | }; | |
329 | typedef struct memory_read_result memory_read_result_s; | |
330 | DEF_VEC_O(memory_read_result_s); | |
331 | ||
332 | extern void free_memory_read_result_vector (void *); | |
333 | ||
334 | extern VEC(memory_read_result_s)* read_memory_robust (struct target_ops *ops, | |
335 | ULONGEST offset, | |
336 | LONGEST len); | |
d5086790 | 337 | |
1e3ff5ad AC |
338 | extern LONGEST target_write (struct target_ops *ops, |
339 | enum target_object object, | |
1b0ba102 | 340 | const char *annex, const gdb_byte *buf, |
1e3ff5ad | 341 | ULONGEST offset, LONGEST len); |
b6591e8b | 342 | |
a76d924d DJ |
343 | /* Similar to target_write, except that it also calls PROGRESS with |
344 | the number of bytes written and the opaque BATON after every | |
345 | successful partial write (and before the first write). This is | |
346 | useful for progress reporting and user interaction while writing | |
347 | data. To abort the transfer, the progress callback can throw an | |
348 | exception. */ | |
349 | ||
cf7a04e8 DJ |
350 | LONGEST target_write_with_progress (struct target_ops *ops, |
351 | enum target_object object, | |
352 | const char *annex, const gdb_byte *buf, | |
353 | ULONGEST offset, LONGEST len, | |
354 | void (*progress) (ULONGEST, void *), | |
355 | void *baton); | |
356 | ||
13547ab6 DJ |
357 | /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will |
358 | be read using OPS. The return value will be -1 if the transfer | |
359 | fails or is not supported; 0 if the object is empty; or the length | |
360 | of the object otherwise. If a positive value is returned, a | |
361 | sufficiently large buffer will be allocated using xmalloc and | |
362 | returned in *BUF_P containing the contents of the object. | |
363 | ||
364 | This method should be used for objects sufficiently small to store | |
365 | in a single xmalloc'd buffer, when no fixed bound on the object's | |
366 | size is known in advance. Don't try to read TARGET_OBJECT_MEMORY | |
367 | through this function. */ | |
368 | ||
369 | extern LONGEST target_read_alloc (struct target_ops *ops, | |
370 | enum target_object object, | |
371 | const char *annex, gdb_byte **buf_p); | |
372 | ||
159f81f3 DJ |
373 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and |
374 | returned as a string, allocated using xmalloc. If an error occurs | |
375 | or the transfer is unsupported, NULL is returned. Empty objects | |
376 | are returned as allocated but empty strings. A warning is issued | |
377 | if the result contains any embedded NUL bytes. */ | |
378 | ||
379 | extern char *target_read_stralloc (struct target_ops *ops, | |
380 | enum target_object object, | |
381 | const char *annex); | |
382 | ||
b6591e8b AC |
383 | /* Wrappers to target read/write that perform memory transfers. They |
384 | throw an error if the memory transfer fails. | |
385 | ||
386 | NOTE: cagney/2003-10-23: The naming schema is lifted from | |
387 | "frame.h". The parameter order is lifted from get_frame_memory, | |
388 | which in turn lifted it from read_memory. */ | |
389 | ||
390 | extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr, | |
1b0ba102 | 391 | gdb_byte *buf, LONGEST len); |
b6591e8b | 392 | extern ULONGEST get_target_memory_unsigned (struct target_ops *ops, |
e17a4113 UW |
393 | CORE_ADDR addr, int len, |
394 | enum bfd_endian byte_order); | |
1e3ff5ad | 395 | \f |
0d06e24b JM |
396 | struct thread_info; /* fwd decl for parameter list below: */ |
397 | ||
c906108c | 398 | struct target_ops |
c5aa993b | 399 | { |
258b763a | 400 | struct target_ops *beneath; /* To the target under this one. */ |
c5aa993b JM |
401 | char *to_shortname; /* Name this target type */ |
402 | char *to_longname; /* Name for printing */ | |
403 | char *to_doc; /* Documentation. Does not include trailing | |
c906108c | 404 | newline, and starts with a one-line descrip- |
0d06e24b | 405 | tion (probably similar to to_longname). */ |
bba2d28d AC |
406 | /* Per-target scratch pad. */ |
407 | void *to_data; | |
f1c07ab0 AC |
408 | /* The open routine takes the rest of the parameters from the |
409 | command, and (if successful) pushes a new target onto the | |
410 | stack. Targets should supply this routine, if only to provide | |
411 | an error message. */ | |
507f3c78 | 412 | void (*to_open) (char *, int); |
f1c07ab0 AC |
413 | /* Old targets with a static target vector provide "to_close". |
414 | New re-entrant targets provide "to_xclose" and that is expected | |
415 | to xfree everything (including the "struct target_ops"). */ | |
416 | void (*to_xclose) (struct target_ops *targ, int quitting); | |
507f3c78 | 417 | void (*to_close) (int); |
136d6dae | 418 | void (*to_attach) (struct target_ops *ops, char *, int); |
507f3c78 | 419 | void (*to_post_attach) (int); |
136d6dae | 420 | void (*to_detach) (struct target_ops *ops, char *, int); |
597320e7 | 421 | void (*to_disconnect) (struct target_ops *, char *, int); |
28439f5e | 422 | void (*to_resume) (struct target_ops *, ptid_t, int, enum target_signal); |
117de6a9 | 423 | ptid_t (*to_wait) (struct target_ops *, |
47608cb1 | 424 | ptid_t, struct target_waitstatus *, int); |
28439f5e PA |
425 | void (*to_fetch_registers) (struct target_ops *, struct regcache *, int); |
426 | void (*to_store_registers) (struct target_ops *, struct regcache *, int); | |
316f2060 | 427 | void (*to_prepare_to_store) (struct regcache *); |
c5aa993b JM |
428 | |
429 | /* Transfer LEN bytes of memory between GDB address MYADDR and | |
430 | target address MEMADDR. If WRITE, transfer them to the target, else | |
431 | transfer them from the target. TARGET is the target from which we | |
432 | get this function. | |
433 | ||
434 | Return value, N, is one of the following: | |
435 | ||
436 | 0 means that we can't handle this. If errno has been set, it is the | |
437 | error which prevented us from doing it (FIXME: What about bfd_error?). | |
438 | ||
439 | positive (call it N) means that we have transferred N bytes | |
440 | starting at MEMADDR. We might be able to handle more bytes | |
441 | beyond this length, but no promises. | |
442 | ||
443 | negative (call its absolute value N) means that we cannot | |
444 | transfer right at MEMADDR, but we could transfer at least | |
c8e73a31 | 445 | something at MEMADDR + N. |
c5aa993b | 446 | |
c8e73a31 AC |
447 | NOTE: cagney/2004-10-01: This has been entirely superseeded by |
448 | to_xfer_partial and inferior inheritance. */ | |
449 | ||
1b0ba102 | 450 | int (*deprecated_xfer_memory) (CORE_ADDR memaddr, gdb_byte *myaddr, |
c8e73a31 AC |
451 | int len, int write, |
452 | struct mem_attrib *attrib, | |
453 | struct target_ops *target); | |
c906108c | 454 | |
507f3c78 | 455 | void (*to_files_info) (struct target_ops *); |
a6d9a66e UW |
456 | int (*to_insert_breakpoint) (struct gdbarch *, struct bp_target_info *); |
457 | int (*to_remove_breakpoint) (struct gdbarch *, struct bp_target_info *); | |
ccaa32c7 | 458 | int (*to_can_use_hw_breakpoint) (int, int, int); |
f1310107 | 459 | int (*to_ranged_break_num_registers) (struct target_ops *); |
a6d9a66e UW |
460 | int (*to_insert_hw_breakpoint) (struct gdbarch *, struct bp_target_info *); |
461 | int (*to_remove_hw_breakpoint) (struct gdbarch *, struct bp_target_info *); | |
0cf6dd15 TJB |
462 | |
463 | /* Documentation of what the two routines below are expected to do is | |
464 | provided with the corresponding target_* macros. */ | |
465 | int (*to_remove_watchpoint) (CORE_ADDR, int, int, struct expression *); | |
466 | int (*to_insert_watchpoint) (CORE_ADDR, int, int, struct expression *); | |
467 | ||
9c06b0b4 TJB |
468 | int (*to_insert_mask_watchpoint) (struct target_ops *, |
469 | CORE_ADDR, CORE_ADDR, int); | |
470 | int (*to_remove_mask_watchpoint) (struct target_ops *, | |
471 | CORE_ADDR, CORE_ADDR, int); | |
ccaa32c7 | 472 | int (*to_stopped_by_watchpoint) (void); |
74174d2e | 473 | int to_have_steppable_watchpoint; |
7df1a324 | 474 | int to_have_continuable_watchpoint; |
4aa7a7f5 | 475 | int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *); |
5009afc5 AS |
476 | int (*to_watchpoint_addr_within_range) (struct target_ops *, |
477 | CORE_ADDR, CORE_ADDR, int); | |
e09342b5 TJB |
478 | |
479 | /* Documentation of this routine is provided with the corresponding | |
480 | target_* macro. */ | |
e0d24f8d | 481 | int (*to_region_ok_for_hw_watchpoint) (CORE_ADDR, int); |
e09342b5 | 482 | |
0cf6dd15 TJB |
483 | int (*to_can_accel_watchpoint_condition) (CORE_ADDR, int, int, |
484 | struct expression *); | |
9c06b0b4 TJB |
485 | int (*to_masked_watch_num_registers) (struct target_ops *, |
486 | CORE_ADDR, CORE_ADDR); | |
507f3c78 KB |
487 | void (*to_terminal_init) (void); |
488 | void (*to_terminal_inferior) (void); | |
489 | void (*to_terminal_ours_for_output) (void); | |
490 | void (*to_terminal_ours) (void); | |
a790ad35 | 491 | void (*to_terminal_save_ours) (void); |
507f3c78 | 492 | void (*to_terminal_info) (char *, int); |
7d85a9c0 | 493 | void (*to_kill) (struct target_ops *); |
507f3c78 | 494 | void (*to_load) (char *, int); |
136d6dae VP |
495 | void (*to_create_inferior) (struct target_ops *, |
496 | char *, char *, char **, int); | |
39f77062 | 497 | void (*to_post_startup_inferior) (ptid_t); |
77b06cd7 | 498 | int (*to_insert_fork_catchpoint) (int); |
507f3c78 | 499 | int (*to_remove_fork_catchpoint) (int); |
77b06cd7 | 500 | int (*to_insert_vfork_catchpoint) (int); |
507f3c78 | 501 | int (*to_remove_vfork_catchpoint) (int); |
ee057212 | 502 | int (*to_follow_fork) (struct target_ops *, int); |
77b06cd7 | 503 | int (*to_insert_exec_catchpoint) (int); |
507f3c78 | 504 | int (*to_remove_exec_catchpoint) (int); |
a96d9b2e | 505 | int (*to_set_syscall_catchpoint) (int, int, int, int, int *); |
507f3c78 | 506 | int (*to_has_exited) (int, int, int *); |
136d6dae | 507 | void (*to_mourn_inferior) (struct target_ops *); |
507f3c78 | 508 | int (*to_can_run) (void); |
2455069d UW |
509 | |
510 | /* Documentation of this routine is provided with the corresponding | |
511 | target_* macro. */ | |
512 | void (*to_pass_signals) (int, unsigned char *); | |
513 | ||
28439f5e PA |
514 | int (*to_thread_alive) (struct target_ops *, ptid_t ptid); |
515 | void (*to_find_new_threads) (struct target_ops *); | |
117de6a9 | 516 | char *(*to_pid_to_str) (struct target_ops *, ptid_t); |
507f3c78 | 517 | char *(*to_extra_thread_info) (struct thread_info *); |
4694da01 | 518 | char *(*to_thread_name) (struct thread_info *); |
94cc34af | 519 | void (*to_stop) (ptid_t); |
d9fcf2fb | 520 | void (*to_rcmd) (char *command, struct ui_file *output); |
507f3c78 | 521 | char *(*to_pid_to_exec_file) (int pid); |
49d03eab | 522 | void (*to_log_command) (const char *); |
07b82ea5 | 523 | struct target_section_table *(*to_get_section_table) (struct target_ops *); |
c5aa993b | 524 | enum strata to_stratum; |
c35b1492 PA |
525 | int (*to_has_all_memory) (struct target_ops *); |
526 | int (*to_has_memory) (struct target_ops *); | |
527 | int (*to_has_stack) (struct target_ops *); | |
528 | int (*to_has_registers) (struct target_ops *); | |
aeaec162 | 529 | int (*to_has_execution) (struct target_ops *, ptid_t); |
c5aa993b | 530 | int to_has_thread_control; /* control thread execution */ |
dc177b7a | 531 | int to_attach_no_wait; |
6426a772 JM |
532 | /* ASYNC target controls */ |
533 | int (*to_can_async_p) (void); | |
534 | int (*to_is_async_p) (void); | |
b84876c2 | 535 | void (*to_async) (void (*) (enum inferior_event_type, void *), void *); |
9908b566 | 536 | int (*to_supports_non_stop) (void); |
6b04bdb7 | 537 | /* find_memory_regions support method for gcore */ |
b8edc417 | 538 | int (*to_find_memory_regions) (find_memory_region_ftype func, void *data); |
6b04bdb7 | 539 | /* make_corefile_notes support method for gcore */ |
be4d1333 | 540 | char * (*to_make_corefile_notes) (bfd *, int *); |
6b04bdb7 MS |
541 | /* get_bookmark support method for bookmarks */ |
542 | gdb_byte * (*to_get_bookmark) (char *, int); | |
543 | /* goto_bookmark support method for bookmarks */ | |
544 | void (*to_goto_bookmark) (gdb_byte *, int); | |
3f47be5c EZ |
545 | /* Return the thread-local address at OFFSET in the |
546 | thread-local storage for the thread PTID and the shared library | |
547 | or executable file given by OBJFILE. If that block of | |
548 | thread-local storage hasn't been allocated yet, this function | |
549 | may return an error. */ | |
117de6a9 PA |
550 | CORE_ADDR (*to_get_thread_local_address) (struct target_ops *ops, |
551 | ptid_t ptid, | |
b2756930 | 552 | CORE_ADDR load_module_addr, |
3f47be5c EZ |
553 | CORE_ADDR offset); |
554 | ||
13547ab6 DJ |
555 | /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
556 | OBJECT. The OFFSET, for a seekable object, specifies the | |
557 | starting point. The ANNEX can be used to provide additional | |
558 | data-specific information to the target. | |
559 | ||
560 | Return the number of bytes actually transfered, zero when no | |
561 | further transfer is possible, and -1 when the transfer is not | |
562 | supported. Return of a positive value smaller than LEN does | |
563 | not indicate the end of the object, only the end of the | |
564 | transfer; higher level code should continue transferring if | |
565 | desired. This is handled in target.c. | |
566 | ||
567 | The interface does not support a "retry" mechanism. Instead it | |
568 | assumes that at least one byte will be transfered on each | |
569 | successful call. | |
570 | ||
571 | NOTE: cagney/2003-10-17: The current interface can lead to | |
572 | fragmented transfers. Lower target levels should not implement | |
573 | hacks, such as enlarging the transfer, in an attempt to | |
574 | compensate for this. Instead, the target stack should be | |
575 | extended so that it implements supply/collect methods and a | |
576 | look-aside object cache. With that available, the lowest | |
577 | target can safely and freely "push" data up the stack. | |
578 | ||
579 | See target_read and target_write for more information. One, | |
580 | and only one, of readbuf or writebuf must be non-NULL. */ | |
581 | ||
4b8a223f | 582 | LONGEST (*to_xfer_partial) (struct target_ops *ops, |
8aa91c1e | 583 | enum target_object object, const char *annex, |
1b0ba102 | 584 | gdb_byte *readbuf, const gdb_byte *writebuf, |
8aa91c1e | 585 | ULONGEST offset, LONGEST len); |
1e3ff5ad | 586 | |
fd79ecee DJ |
587 | /* Returns the memory map for the target. A return value of NULL |
588 | means that no memory map is available. If a memory address | |
589 | does not fall within any returned regions, it's assumed to be | |
590 | RAM. The returned memory regions should not overlap. | |
591 | ||
592 | The order of regions does not matter; target_memory_map will | |
c378eb4e | 593 | sort regions by starting address. For that reason, this |
fd79ecee DJ |
594 | function should not be called directly except via |
595 | target_memory_map. | |
596 | ||
597 | This method should not cache data; if the memory map could | |
598 | change unexpectedly, it should be invalidated, and higher | |
599 | layers will re-fetch it. */ | |
600 | VEC(mem_region_s) *(*to_memory_map) (struct target_ops *); | |
601 | ||
a76d924d DJ |
602 | /* Erases the region of flash memory starting at ADDRESS, of |
603 | length LENGTH. | |
604 | ||
605 | Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned | |
606 | on flash block boundaries, as reported by 'to_memory_map'. */ | |
607 | void (*to_flash_erase) (struct target_ops *, | |
608 | ULONGEST address, LONGEST length); | |
609 | ||
610 | /* Finishes a flash memory write sequence. After this operation | |
611 | all flash memory should be available for writing and the result | |
612 | of reading from areas written by 'to_flash_write' should be | |
613 | equal to what was written. */ | |
614 | void (*to_flash_done) (struct target_ops *); | |
615 | ||
424163ea DJ |
616 | /* Describe the architecture-specific features of this target. |
617 | Returns the description found, or NULL if no description | |
618 | was available. */ | |
619 | const struct target_desc *(*to_read_description) (struct target_ops *ops); | |
620 | ||
0ef643c8 JB |
621 | /* Build the PTID of the thread on which a given task is running, |
622 | based on LWP and THREAD. These values are extracted from the | |
623 | task Private_Data section of the Ada Task Control Block, and | |
624 | their interpretation depends on the target. */ | |
625 | ptid_t (*to_get_ada_task_ptid) (long lwp, long thread); | |
626 | ||
c47ffbe3 VP |
627 | /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
628 | Return 0 if *READPTR is already at the end of the buffer. | |
629 | Return -1 if there is insufficient buffer for a whole entry. | |
630 | Return 1 if an entry was read into *TYPEP and *VALP. */ | |
631 | int (*to_auxv_parse) (struct target_ops *ops, gdb_byte **readptr, | |
632 | gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp); | |
633 | ||
08388c79 DE |
634 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
635 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
636 | ||
637 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
638 | requiring halting of the search (e.g. memory read error). | |
639 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
640 | int (*to_search_memory) (struct target_ops *ops, | |
641 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
642 | const gdb_byte *pattern, ULONGEST pattern_len, | |
643 | CORE_ADDR *found_addrp); | |
644 | ||
b2175913 | 645 | /* Can target execute in reverse? */ |
2c0b251b | 646 | int (*to_can_execute_reverse) (void); |
b2175913 | 647 | |
32231432 PA |
648 | /* The direction the target is currently executing. Must be |
649 | implemented on targets that support reverse execution and async | |
650 | mode. The default simply returns forward execution. */ | |
651 | enum exec_direction_kind (*to_execution_direction) (void); | |
652 | ||
8a305172 PA |
653 | /* Does this target support debugging multiple processes |
654 | simultaneously? */ | |
655 | int (*to_supports_multi_process) (void); | |
656 | ||
d248b706 KY |
657 | /* Does this target support enabling and disabling tracepoints while a trace |
658 | experiment is running? */ | |
659 | int (*to_supports_enable_disable_tracepoint) (void); | |
660 | ||
03583c20 UW |
661 | /* Does this target support disabling address space randomization? */ |
662 | int (*to_supports_disable_randomization) (void); | |
663 | ||
3065dfb6 SS |
664 | /* Does this target support the tracenz bytecode for string collection? */ |
665 | int (*to_supports_string_tracing) (void); | |
666 | ||
3a8f7b07 JK |
667 | /* Determine current architecture of thread PTID. |
668 | ||
669 | The target is supposed to determine the architecture of the code where | |
670 | the target is currently stopped at (on Cell, if a target is in spu_run, | |
671 | to_thread_architecture would return SPU, otherwise PPC32 or PPC64). | |
672 | This is architecture used to perform decr_pc_after_break adjustment, | |
673 | and also determines the frame architecture of the innermost frame. | |
674 | ptrace operations need to operate according to target_gdbarch. | |
675 | ||
676 | The default implementation always returns target_gdbarch. */ | |
c2250ad1 UW |
677 | struct gdbarch *(*to_thread_architecture) (struct target_ops *, ptid_t); |
678 | ||
c0694254 PA |
679 | /* Determine current address space of thread PTID. |
680 | ||
681 | The default implementation always returns the inferior's | |
682 | address space. */ | |
683 | struct address_space *(*to_thread_address_space) (struct target_ops *, | |
684 | ptid_t); | |
685 | ||
35b1e5cc SS |
686 | /* Tracepoint-related operations. */ |
687 | ||
688 | /* Prepare the target for a tracing run. */ | |
689 | void (*to_trace_init) (void); | |
690 | ||
e8ba3115 YQ |
691 | /* Send full details of a tracepoint location to the target. */ |
692 | void (*to_download_tracepoint) (struct bp_location *location); | |
35b1e5cc | 693 | |
1e4d1764 YQ |
694 | /* Is the target able to download tracepoint locations in current |
695 | state? */ | |
696 | int (*to_can_download_tracepoint) (void); | |
697 | ||
35b1e5cc SS |
698 | /* Send full details of a trace state variable to the target. */ |
699 | void (*to_download_trace_state_variable) (struct trace_state_variable *tsv); | |
700 | ||
d248b706 KY |
701 | /* Enable a tracepoint on the target. */ |
702 | void (*to_enable_tracepoint) (struct bp_location *location); | |
703 | ||
704 | /* Disable a tracepoint on the target. */ | |
705 | void (*to_disable_tracepoint) (struct bp_location *location); | |
706 | ||
35b1e5cc SS |
707 | /* Inform the target info of memory regions that are readonly |
708 | (such as text sections), and so it should return data from | |
709 | those rather than look in the trace buffer. */ | |
710 | void (*to_trace_set_readonly_regions) (void); | |
711 | ||
712 | /* Start a trace run. */ | |
713 | void (*to_trace_start) (void); | |
714 | ||
715 | /* Get the current status of a tracing run. */ | |
00bf0b85 | 716 | int (*to_get_trace_status) (struct trace_status *ts); |
35b1e5cc | 717 | |
f196051f SS |
718 | void (*to_get_tracepoint_status) (struct breakpoint *tp, |
719 | struct uploaded_tp *utp); | |
720 | ||
35b1e5cc SS |
721 | /* Stop a trace run. */ |
722 | void (*to_trace_stop) (void); | |
723 | ||
724 | /* Ask the target to find a trace frame of the given type TYPE, | |
725 | using NUM, ADDR1, and ADDR2 as search parameters. Returns the | |
726 | number of the trace frame, and also the tracepoint number at | |
c378eb4e | 727 | TPP. If no trace frame matches, return -1. May throw if the |
f197e0f1 | 728 | operation fails. */ |
35b1e5cc SS |
729 | int (*to_trace_find) (enum trace_find_type type, int num, |
730 | ULONGEST addr1, ULONGEST addr2, int *tpp); | |
731 | ||
732 | /* Get the value of the trace state variable number TSV, returning | |
733 | 1 if the value is known and writing the value itself into the | |
734 | location pointed to by VAL, else returning 0. */ | |
735 | int (*to_get_trace_state_variable_value) (int tsv, LONGEST *val); | |
736 | ||
011aacb0 | 737 | int (*to_save_trace_data) (const char *filename); |
00bf0b85 SS |
738 | |
739 | int (*to_upload_tracepoints) (struct uploaded_tp **utpp); | |
740 | ||
741 | int (*to_upload_trace_state_variables) (struct uploaded_tsv **utsvp); | |
742 | ||
743 | LONGEST (*to_get_raw_trace_data) (gdb_byte *buf, | |
744 | ULONGEST offset, LONGEST len); | |
745 | ||
405f8e94 SS |
746 | /* Get the minimum length of instruction on which a fast tracepoint |
747 | may be set on the target. If this operation is unsupported, | |
748 | return -1. If for some reason the minimum length cannot be | |
749 | determined, return 0. */ | |
750 | int (*to_get_min_fast_tracepoint_insn_len) (void); | |
751 | ||
35b1e5cc SS |
752 | /* Set the target's tracing behavior in response to unexpected |
753 | disconnection - set VAL to 1 to keep tracing, 0 to stop. */ | |
754 | void (*to_set_disconnected_tracing) (int val); | |
4daf5ac0 | 755 | void (*to_set_circular_trace_buffer) (int val); |
35b1e5cc | 756 | |
f196051f SS |
757 | /* Add/change textual notes about the trace run, returning 1 if |
758 | successful, 0 otherwise. */ | |
759 | int (*to_set_trace_notes) (char *user, char *notes, char* stopnotes); | |
760 | ||
dc146f7c VP |
761 | /* Return the processor core that thread PTID was last seen on. |
762 | This information is updated only when: | |
763 | - update_thread_list is called | |
764 | - thread stops | |
3e43a32a MS |
765 | If the core cannot be determined -- either for the specified |
766 | thread, or right now, or in this debug session, or for this | |
767 | target -- return -1. */ | |
dc146f7c VP |
768 | int (*to_core_of_thread) (struct target_ops *, ptid_t ptid); |
769 | ||
4a5e7a5b PA |
770 | /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range |
771 | matches the contents of [DATA,DATA+SIZE). Returns 1 if there's | |
772 | a match, 0 if there's a mismatch, and -1 if an error is | |
773 | encountered while reading memory. */ | |
774 | int (*to_verify_memory) (struct target_ops *, const gdb_byte *data, | |
775 | CORE_ADDR memaddr, ULONGEST size); | |
776 | ||
711e434b PM |
777 | /* Return the address of the start of the Thread Information Block |
778 | a Windows OS specific feature. */ | |
779 | int (*to_get_tib_address) (ptid_t ptid, CORE_ADDR *addr); | |
780 | ||
d914c394 SS |
781 | /* Send the new settings of write permission variables. */ |
782 | void (*to_set_permissions) (void); | |
783 | ||
0fb4aa4b PA |
784 | /* Look for a static tracepoint marker at ADDR, and fill in MARKER |
785 | with its details. Return 1 on success, 0 on failure. */ | |
786 | int (*to_static_tracepoint_marker_at) (CORE_ADDR, | |
787 | struct static_tracepoint_marker *marker); | |
788 | ||
789 | /* Return a vector of all tracepoints markers string id ID, or all | |
790 | markers if ID is NULL. */ | |
791 | VEC(static_tracepoint_marker_p) *(*to_static_tracepoint_markers_by_strid) | |
792 | (const char *id); | |
793 | ||
b3b9301e PA |
794 | /* Return a traceframe info object describing the current |
795 | traceframe's contents. This method should not cache data; | |
796 | higher layers take care of caching, invalidating, and | |
797 | re-fetching when necessary. */ | |
798 | struct traceframe_info *(*to_traceframe_info) (void); | |
799 | ||
c5aa993b | 800 | int to_magic; |
0d06e24b JM |
801 | /* Need sub-structure for target machine related rather than comm related? |
802 | */ | |
c5aa993b | 803 | }; |
c906108c SS |
804 | |
805 | /* Magic number for checking ops size. If a struct doesn't end with this | |
806 | number, somebody changed the declaration but didn't change all the | |
807 | places that initialize one. */ | |
808 | ||
809 | #define OPS_MAGIC 3840 | |
810 | ||
811 | /* The ops structure for our "current" target process. This should | |
812 | never be NULL. If there is no target, it points to the dummy_target. */ | |
813 | ||
c5aa993b | 814 | extern struct target_ops current_target; |
c906108c | 815 | |
c906108c SS |
816 | /* Define easy words for doing these operations on our current target. */ |
817 | ||
818 | #define target_shortname (current_target.to_shortname) | |
819 | #define target_longname (current_target.to_longname) | |
820 | ||
f1c07ab0 AC |
821 | /* Does whatever cleanup is required for a target that we are no |
822 | longer going to be calling. QUITTING indicates that GDB is exiting | |
823 | and should not get hung on an error (otherwise it is important to | |
824 | perform clean termination, even if it takes a while). This routine | |
825 | is automatically always called when popping the target off the | |
826 | target stack (to_beneath is undefined). Closing file descriptors | |
827 | and freeing all memory allocated memory are typical things it | |
828 | should do. */ | |
829 | ||
830 | void target_close (struct target_ops *targ, int quitting); | |
c906108c SS |
831 | |
832 | /* Attaches to a process on the target side. Arguments are as passed | |
833 | to the `attach' command by the user. This routine can be called | |
834 | when the target is not on the target-stack, if the target_can_run | |
2146d243 | 835 | routine returns 1; in that case, it must push itself onto the stack. |
c906108c | 836 | Upon exit, the target should be ready for normal operations, and |
2146d243 | 837 | should be ready to deliver the status of the process immediately |
c906108c SS |
838 | (without waiting) to an upcoming target_wait call. */ |
839 | ||
136d6dae | 840 | void target_attach (char *, int); |
c906108c | 841 | |
dc177b7a PA |
842 | /* Some targets don't generate traps when attaching to the inferior, |
843 | or their target_attach implementation takes care of the waiting. | |
844 | These targets must set to_attach_no_wait. */ | |
845 | ||
846 | #define target_attach_no_wait \ | |
847 | (current_target.to_attach_no_wait) | |
848 | ||
c906108c SS |
849 | /* The target_attach operation places a process under debugger control, |
850 | and stops the process. | |
851 | ||
852 | This operation provides a target-specific hook that allows the | |
0d06e24b | 853 | necessary bookkeeping to be performed after an attach completes. */ |
c906108c | 854 | #define target_post_attach(pid) \ |
0d06e24b | 855 | (*current_target.to_post_attach) (pid) |
c906108c | 856 | |
c906108c SS |
857 | /* Takes a program previously attached to and detaches it. |
858 | The program may resume execution (some targets do, some don't) and will | |
859 | no longer stop on signals, etc. We better not have left any breakpoints | |
860 | in the program or it'll die when it hits one. ARGS is arguments | |
861 | typed by the user (e.g. a signal to send the process). FROM_TTY | |
862 | says whether to be verbose or not. */ | |
863 | ||
a14ed312 | 864 | extern void target_detach (char *, int); |
c906108c | 865 | |
6ad8ae5c DJ |
866 | /* Disconnect from the current target without resuming it (leaving it |
867 | waiting for a debugger). */ | |
868 | ||
869 | extern void target_disconnect (char *, int); | |
870 | ||
39f77062 | 871 | /* Resume execution of the target process PTID. STEP says whether to |
c906108c SS |
872 | single-step or to run free; SIGGNAL is the signal to be given to |
873 | the target, or TARGET_SIGNAL_0 for no signal. The caller may not | |
874 | pass TARGET_SIGNAL_DEFAULT. */ | |
875 | ||
e1ac3328 | 876 | extern void target_resume (ptid_t ptid, int step, enum target_signal signal); |
c906108c | 877 | |
b5a2688f AC |
878 | /* Wait for process pid to do something. PTID = -1 to wait for any |
879 | pid to do something. Return pid of child, or -1 in case of error; | |
c906108c | 880 | store status through argument pointer STATUS. Note that it is |
b5a2688f | 881 | _NOT_ OK to throw_exception() out of target_wait() without popping |
c906108c SS |
882 | the debugging target from the stack; GDB isn't prepared to get back |
883 | to the prompt with a debugging target but without the frame cache, | |
47608cb1 PA |
884 | stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W* |
885 | options. */ | |
c906108c | 886 | |
47608cb1 PA |
887 | extern ptid_t target_wait (ptid_t ptid, struct target_waitstatus *status, |
888 | int options); | |
c906108c | 889 | |
17dee195 | 890 | /* Fetch at least register REGNO, or all regs if regno == -1. No result. */ |
c906108c | 891 | |
28439f5e | 892 | extern void target_fetch_registers (struct regcache *regcache, int regno); |
c906108c SS |
893 | |
894 | /* Store at least register REGNO, or all regs if REGNO == -1. | |
895 | It can store as many registers as it wants to, so target_prepare_to_store | |
896 | must have been previously called. Calls error() if there are problems. */ | |
897 | ||
28439f5e | 898 | extern void target_store_registers (struct regcache *regcache, int regs); |
c906108c SS |
899 | |
900 | /* Get ready to modify the registers array. On machines which store | |
901 | individual registers, this doesn't need to do anything. On machines | |
902 | which store all the registers in one fell swoop, this makes sure | |
903 | that REGISTERS contains all the registers from the program being | |
904 | debugged. */ | |
905 | ||
316f2060 UW |
906 | #define target_prepare_to_store(regcache) \ |
907 | (*current_target.to_prepare_to_store) (regcache) | |
c906108c | 908 | |
6c95b8df PA |
909 | /* Determine current address space of thread PTID. */ |
910 | ||
911 | struct address_space *target_thread_address_space (ptid_t); | |
912 | ||
8a305172 PA |
913 | /* Returns true if this target can debug multiple processes |
914 | simultaneously. */ | |
915 | ||
916 | #define target_supports_multi_process() \ | |
917 | (*current_target.to_supports_multi_process) () | |
918 | ||
03583c20 UW |
919 | /* Returns true if this target can disable address space randomization. */ |
920 | ||
921 | int target_supports_disable_randomization (void); | |
922 | ||
d248b706 KY |
923 | /* Returns true if this target can enable and disable tracepoints |
924 | while a trace experiment is running. */ | |
925 | ||
926 | #define target_supports_enable_disable_tracepoint() \ | |
927 | (*current_target.to_supports_enable_disable_tracepoint) () | |
928 | ||
3065dfb6 SS |
929 | #define target_supports_string_tracing() \ |
930 | (*current_target.to_supports_string_tracing) () | |
931 | ||
4e5d721f DE |
932 | /* Invalidate all target dcaches. */ |
933 | extern void target_dcache_invalidate (void); | |
4930751a | 934 | |
a14ed312 | 935 | extern int target_read_string (CORE_ADDR, char **, int, int *); |
c906108c | 936 | |
fc1a4b47 | 937 | extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len); |
c906108c | 938 | |
4e5d721f DE |
939 | extern int target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, int len); |
940 | ||
fc1a4b47 | 941 | extern int target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, |
10e2d419 | 942 | int len); |
c906108c | 943 | |
fd79ecee DJ |
944 | /* Fetches the target's memory map. If one is found it is sorted |
945 | and returned, after some consistency checking. Otherwise, NULL | |
946 | is returned. */ | |
947 | VEC(mem_region_s) *target_memory_map (void); | |
948 | ||
a76d924d DJ |
949 | /* Erase the specified flash region. */ |
950 | void target_flash_erase (ULONGEST address, LONGEST length); | |
951 | ||
952 | /* Finish a sequence of flash operations. */ | |
953 | void target_flash_done (void); | |
954 | ||
955 | /* Describes a request for a memory write operation. */ | |
956 | struct memory_write_request | |
957 | { | |
c378eb4e | 958 | /* Begining address that must be written. */ |
a76d924d | 959 | ULONGEST begin; |
c378eb4e | 960 | /* Past-the-end address. */ |
a76d924d | 961 | ULONGEST end; |
c378eb4e | 962 | /* The data to write. */ |
a76d924d DJ |
963 | gdb_byte *data; |
964 | /* A callback baton for progress reporting for this request. */ | |
965 | void *baton; | |
966 | }; | |
967 | typedef struct memory_write_request memory_write_request_s; | |
968 | DEF_VEC_O(memory_write_request_s); | |
969 | ||
970 | /* Enumeration specifying different flash preservation behaviour. */ | |
971 | enum flash_preserve_mode | |
972 | { | |
973 | flash_preserve, | |
974 | flash_discard | |
975 | }; | |
976 | ||
977 | /* Write several memory blocks at once. This version can be more | |
978 | efficient than making several calls to target_write_memory, in | |
979 | particular because it can optimize accesses to flash memory. | |
980 | ||
981 | Moreover, this is currently the only memory access function in gdb | |
982 | that supports writing to flash memory, and it should be used for | |
983 | all cases where access to flash memory is desirable. | |
984 | ||
985 | REQUESTS is the vector (see vec.h) of memory_write_request. | |
986 | PRESERVE_FLASH_P indicates what to do with blocks which must be | |
987 | erased, but not completely rewritten. | |
988 | PROGRESS_CB is a function that will be periodically called to provide | |
989 | feedback to user. It will be called with the baton corresponding | |
990 | to the request currently being written. It may also be called | |
991 | with a NULL baton, when preserved flash sectors are being rewritten. | |
992 | ||
993 | The function returns 0 on success, and error otherwise. */ | |
994 | int target_write_memory_blocks (VEC(memory_write_request_s) *requests, | |
995 | enum flash_preserve_mode preserve_flash_p, | |
996 | void (*progress_cb) (ULONGEST, void *)); | |
997 | ||
47932f85 DJ |
998 | /* From infrun.c. */ |
999 | ||
3a3e9ee3 | 1000 | extern int inferior_has_forked (ptid_t pid, ptid_t *child_pid); |
47932f85 | 1001 | |
3a3e9ee3 | 1002 | extern int inferior_has_vforked (ptid_t pid, ptid_t *child_pid); |
47932f85 | 1003 | |
3a3e9ee3 | 1004 | extern int inferior_has_execd (ptid_t pid, char **execd_pathname); |
47932f85 | 1005 | |
a96d9b2e SDJ |
1006 | extern int inferior_has_called_syscall (ptid_t pid, int *syscall_number); |
1007 | ||
c906108c SS |
1008 | /* Print a line about the current target. */ |
1009 | ||
1010 | #define target_files_info() \ | |
0d06e24b | 1011 | (*current_target.to_files_info) (¤t_target) |
c906108c | 1012 | |
8181d85f DJ |
1013 | /* Insert a breakpoint at address BP_TGT->placed_address in the target |
1014 | machine. Result is 0 for success, or an errno value. */ | |
c906108c | 1015 | |
d914c394 SS |
1016 | extern int target_insert_breakpoint (struct gdbarch *gdbarch, |
1017 | struct bp_target_info *bp_tgt); | |
c906108c | 1018 | |
8181d85f DJ |
1019 | /* Remove a breakpoint at address BP_TGT->placed_address in the target |
1020 | machine. Result is 0 for success, or an errno value. */ | |
c906108c | 1021 | |
d914c394 SS |
1022 | extern int target_remove_breakpoint (struct gdbarch *gdbarch, |
1023 | struct bp_target_info *bp_tgt); | |
c906108c SS |
1024 | |
1025 | /* Initialize the terminal settings we record for the inferior, | |
1026 | before we actually run the inferior. */ | |
1027 | ||
1028 | #define target_terminal_init() \ | |
0d06e24b | 1029 | (*current_target.to_terminal_init) () |
c906108c SS |
1030 | |
1031 | /* Put the inferior's terminal settings into effect. | |
1032 | This is preparation for starting or resuming the inferior. */ | |
1033 | ||
d9d2d8b6 | 1034 | extern void target_terminal_inferior (void); |
c906108c SS |
1035 | |
1036 | /* Put some of our terminal settings into effect, | |
1037 | enough to get proper results from our output, | |
1038 | but do not change into or out of RAW mode | |
1039 | so that no input is discarded. | |
1040 | ||
1041 | After doing this, either terminal_ours or terminal_inferior | |
1042 | should be called to get back to a normal state of affairs. */ | |
1043 | ||
1044 | #define target_terminal_ours_for_output() \ | |
0d06e24b | 1045 | (*current_target.to_terminal_ours_for_output) () |
c906108c SS |
1046 | |
1047 | /* Put our terminal settings into effect. | |
1048 | First record the inferior's terminal settings | |
1049 | so they can be restored properly later. */ | |
1050 | ||
1051 | #define target_terminal_ours() \ | |
0d06e24b | 1052 | (*current_target.to_terminal_ours) () |
c906108c | 1053 | |
a790ad35 SC |
1054 | /* Save our terminal settings. |
1055 | This is called from TUI after entering or leaving the curses | |
1056 | mode. Since curses modifies our terminal this call is here | |
1057 | to take this change into account. */ | |
1058 | ||
1059 | #define target_terminal_save_ours() \ | |
1060 | (*current_target.to_terminal_save_ours) () | |
1061 | ||
c906108c SS |
1062 | /* Print useful information about our terminal status, if such a thing |
1063 | exists. */ | |
1064 | ||
1065 | #define target_terminal_info(arg, from_tty) \ | |
0d06e24b | 1066 | (*current_target.to_terminal_info) (arg, from_tty) |
c906108c SS |
1067 | |
1068 | /* Kill the inferior process. Make it go away. */ | |
1069 | ||
7d85a9c0 | 1070 | extern void target_kill (void); |
c906108c | 1071 | |
0d06e24b JM |
1072 | /* Load an executable file into the target process. This is expected |
1073 | to not only bring new code into the target process, but also to | |
1986bccd AS |
1074 | update GDB's symbol tables to match. |
1075 | ||
1076 | ARG contains command-line arguments, to be broken down with | |
1077 | buildargv (). The first non-switch argument is the filename to | |
1078 | load, FILE; the second is a number (as parsed by strtoul (..., ..., | |
1079 | 0)), which is an offset to apply to the load addresses of FILE's | |
1080 | sections. The target may define switches, or other non-switch | |
1081 | arguments, as it pleases. */ | |
c906108c | 1082 | |
11cf8741 | 1083 | extern void target_load (char *arg, int from_tty); |
c906108c | 1084 | |
39f77062 | 1085 | /* Start an inferior process and set inferior_ptid to its pid. |
c906108c SS |
1086 | EXEC_FILE is the file to run. |
1087 | ALLARGS is a string containing the arguments to the program. | |
1088 | ENV is the environment vector to pass. Errors reported with error(). | |
1089 | On VxWorks and various standalone systems, we ignore exec_file. */ | |
c5aa993b | 1090 | |
136d6dae VP |
1091 | void target_create_inferior (char *exec_file, char *args, |
1092 | char **env, int from_tty); | |
c906108c SS |
1093 | |
1094 | /* Some targets (such as ttrace-based HPUX) don't allow us to request | |
1095 | notification of inferior events such as fork and vork immediately | |
1096 | after the inferior is created. (This because of how gdb gets an | |
1097 | inferior created via invoking a shell to do it. In such a scenario, | |
1098 | if the shell init file has commands in it, the shell will fork and | |
1099 | exec for each of those commands, and we will see each such fork | |
1100 | event. Very bad.) | |
c5aa993b | 1101 | |
0d06e24b JM |
1102 | Such targets will supply an appropriate definition for this function. */ |
1103 | ||
39f77062 KB |
1104 | #define target_post_startup_inferior(ptid) \ |
1105 | (*current_target.to_post_startup_inferior) (ptid) | |
c906108c | 1106 | |
0d06e24b JM |
1107 | /* On some targets, we can catch an inferior fork or vfork event when |
1108 | it occurs. These functions insert/remove an already-created | |
77b06cd7 TJB |
1109 | catchpoint for such events. They return 0 for success, 1 if the |
1110 | catchpoint type is not supported and -1 for failure. */ | |
c906108c | 1111 | |
c906108c | 1112 | #define target_insert_fork_catchpoint(pid) \ |
0d06e24b | 1113 | (*current_target.to_insert_fork_catchpoint) (pid) |
c906108c SS |
1114 | |
1115 | #define target_remove_fork_catchpoint(pid) \ | |
0d06e24b | 1116 | (*current_target.to_remove_fork_catchpoint) (pid) |
c906108c SS |
1117 | |
1118 | #define target_insert_vfork_catchpoint(pid) \ | |
0d06e24b | 1119 | (*current_target.to_insert_vfork_catchpoint) (pid) |
c906108c SS |
1120 | |
1121 | #define target_remove_vfork_catchpoint(pid) \ | |
0d06e24b | 1122 | (*current_target.to_remove_vfork_catchpoint) (pid) |
c906108c | 1123 | |
6604731b DJ |
1124 | /* If the inferior forks or vforks, this function will be called at |
1125 | the next resume in order to perform any bookkeeping and fiddling | |
1126 | necessary to continue debugging either the parent or child, as | |
1127 | requested, and releasing the other. Information about the fork | |
1128 | or vfork event is available via get_last_target_status (). | |
1129 | This function returns 1 if the inferior should not be resumed | |
1130 | (i.e. there is another event pending). */ | |
0d06e24b | 1131 | |
ee057212 | 1132 | int target_follow_fork (int follow_child); |
c906108c SS |
1133 | |
1134 | /* On some targets, we can catch an inferior exec event when it | |
0d06e24b | 1135 | occurs. These functions insert/remove an already-created |
77b06cd7 TJB |
1136 | catchpoint for such events. They return 0 for success, 1 if the |
1137 | catchpoint type is not supported and -1 for failure. */ | |
0d06e24b | 1138 | |
c906108c | 1139 | #define target_insert_exec_catchpoint(pid) \ |
0d06e24b | 1140 | (*current_target.to_insert_exec_catchpoint) (pid) |
c5aa993b | 1141 | |
c906108c | 1142 | #define target_remove_exec_catchpoint(pid) \ |
0d06e24b | 1143 | (*current_target.to_remove_exec_catchpoint) (pid) |
c906108c | 1144 | |
a96d9b2e SDJ |
1145 | /* Syscall catch. |
1146 | ||
1147 | NEEDED is nonzero if any syscall catch (of any kind) is requested. | |
1148 | If NEEDED is zero, it means the target can disable the mechanism to | |
1149 | catch system calls because there are no more catchpoints of this type. | |
1150 | ||
1151 | ANY_COUNT is nonzero if a generic (filter-less) syscall catch is | |
1152 | being requested. In this case, both TABLE_SIZE and TABLE should | |
1153 | be ignored. | |
1154 | ||
1155 | TABLE_SIZE is the number of elements in TABLE. It only matters if | |
1156 | ANY_COUNT is zero. | |
1157 | ||
1158 | TABLE is an array of ints, indexed by syscall number. An element in | |
1159 | this array is nonzero if that syscall should be caught. This argument | |
77b06cd7 TJB |
1160 | only matters if ANY_COUNT is zero. |
1161 | ||
1162 | Return 0 for success, 1 if syscall catchpoints are not supported or -1 | |
1163 | for failure. */ | |
a96d9b2e SDJ |
1164 | |
1165 | #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \ | |
1166 | (*current_target.to_set_syscall_catchpoint) (pid, needed, any_count, \ | |
1167 | table_size, table) | |
1168 | ||
c906108c | 1169 | /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the |
0d06e24b JM |
1170 | exit code of PID, if any. */ |
1171 | ||
c906108c | 1172 | #define target_has_exited(pid,wait_status,exit_status) \ |
0d06e24b | 1173 | (*current_target.to_has_exited) (pid,wait_status,exit_status) |
c906108c SS |
1174 | |
1175 | /* The debugger has completed a blocking wait() call. There is now | |
2146d243 | 1176 | some process event that must be processed. This function should |
c906108c | 1177 | be defined by those targets that require the debugger to perform |
0d06e24b | 1178 | cleanup or internal state changes in response to the process event. */ |
c906108c SS |
1179 | |
1180 | /* The inferior process has died. Do what is right. */ | |
1181 | ||
136d6dae | 1182 | void target_mourn_inferior (void); |
c906108c SS |
1183 | |
1184 | /* Does target have enough data to do a run or attach command? */ | |
1185 | ||
1186 | #define target_can_run(t) \ | |
0d06e24b | 1187 | ((t)->to_can_run) () |
c906108c | 1188 | |
2455069d UW |
1189 | /* Set list of signals to be handled in the target. |
1190 | ||
1191 | PASS_SIGNALS is an array of size NSIG, indexed by target signal number | |
1192 | (enum target_signal). For every signal whose entry in this array is | |
1193 | non-zero, the target is allowed -but not required- to skip reporting | |
1194 | arrival of the signal to the GDB core by returning from target_wait, | |
1195 | and to pass the signal directly to the inferior instead. | |
1196 | ||
1197 | However, if the target is hardware single-stepping a thread that is | |
1198 | about to receive a signal, it needs to be reported in any case, even | |
1199 | if mentioned in a previous target_pass_signals call. */ | |
c906108c | 1200 | |
2455069d | 1201 | extern void target_pass_signals (int nsig, unsigned char *pass_signals); |
c906108c SS |
1202 | |
1203 | /* Check to see if a thread is still alive. */ | |
1204 | ||
28439f5e | 1205 | extern int target_thread_alive (ptid_t ptid); |
c906108c | 1206 | |
b83266a0 SS |
1207 | /* Query for new threads and add them to the thread list. */ |
1208 | ||
28439f5e | 1209 | extern void target_find_new_threads (void); |
b83266a0 | 1210 | |
0d06e24b JM |
1211 | /* Make target stop in a continuable fashion. (For instance, under |
1212 | Unix, this should act like SIGSTOP). This function is normally | |
1213 | used by GUIs to implement a stop button. */ | |
c906108c | 1214 | |
d914c394 | 1215 | extern void target_stop (ptid_t ptid); |
c906108c | 1216 | |
96baa820 JM |
1217 | /* Send the specified COMMAND to the target's monitor |
1218 | (shell,interpreter) for execution. The result of the query is | |
0d06e24b | 1219 | placed in OUTBUF. */ |
96baa820 JM |
1220 | |
1221 | #define target_rcmd(command, outbuf) \ | |
1222 | (*current_target.to_rcmd) (command, outbuf) | |
1223 | ||
1224 | ||
c906108c SS |
1225 | /* Does the target include all of memory, or only part of it? This |
1226 | determines whether we look up the target chain for other parts of | |
1227 | memory if this target can't satisfy a request. */ | |
1228 | ||
c35b1492 PA |
1229 | extern int target_has_all_memory_1 (void); |
1230 | #define target_has_all_memory target_has_all_memory_1 () | |
c906108c SS |
1231 | |
1232 | /* Does the target include memory? (Dummy targets don't.) */ | |
1233 | ||
c35b1492 PA |
1234 | extern int target_has_memory_1 (void); |
1235 | #define target_has_memory target_has_memory_1 () | |
c906108c SS |
1236 | |
1237 | /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until | |
1238 | we start a process.) */ | |
c5aa993b | 1239 | |
c35b1492 PA |
1240 | extern int target_has_stack_1 (void); |
1241 | #define target_has_stack target_has_stack_1 () | |
c906108c SS |
1242 | |
1243 | /* Does the target have registers? (Exec files don't.) */ | |
1244 | ||
c35b1492 PA |
1245 | extern int target_has_registers_1 (void); |
1246 | #define target_has_registers target_has_registers_1 () | |
c906108c SS |
1247 | |
1248 | /* Does the target have execution? Can we make it jump (through | |
52bb452f DJ |
1249 | hoops), or pop its stack a few times? This means that the current |
1250 | target is currently executing; for some targets, that's the same as | |
1251 | whether or not the target is capable of execution, but there are | |
1252 | also targets which can be current while not executing. In that | |
1253 | case this will become true after target_create_inferior or | |
1254 | target_attach. */ | |
c906108c | 1255 | |
aeaec162 TT |
1256 | extern int target_has_execution_1 (ptid_t); |
1257 | ||
1258 | /* Like target_has_execution_1, but always passes inferior_ptid. */ | |
1259 | ||
1260 | extern int target_has_execution_current (void); | |
1261 | ||
1262 | #define target_has_execution target_has_execution_current () | |
c35b1492 PA |
1263 | |
1264 | /* Default implementations for process_stratum targets. Return true | |
1265 | if there's a selected inferior, false otherwise. */ | |
1266 | ||
1267 | extern int default_child_has_all_memory (struct target_ops *ops); | |
1268 | extern int default_child_has_memory (struct target_ops *ops); | |
1269 | extern int default_child_has_stack (struct target_ops *ops); | |
1270 | extern int default_child_has_registers (struct target_ops *ops); | |
aeaec162 TT |
1271 | extern int default_child_has_execution (struct target_ops *ops, |
1272 | ptid_t the_ptid); | |
c906108c SS |
1273 | |
1274 | /* Can the target support the debugger control of thread execution? | |
d6350901 | 1275 | Can it lock the thread scheduler? */ |
c906108c SS |
1276 | |
1277 | #define target_can_lock_scheduler \ | |
0d06e24b | 1278 | (current_target.to_has_thread_control & tc_schedlock) |
c906108c | 1279 | |
c6ebd6cf VP |
1280 | /* Should the target enable async mode if it is supported? Temporary |
1281 | cludge until async mode is a strict superset of sync mode. */ | |
1282 | extern int target_async_permitted; | |
1283 | ||
c378eb4e | 1284 | /* Can the target support asynchronous execution? */ |
6426a772 JM |
1285 | #define target_can_async_p() (current_target.to_can_async_p ()) |
1286 | ||
c378eb4e | 1287 | /* Is the target in asynchronous execution mode? */ |
b84876c2 | 1288 | #define target_is_async_p() (current_target.to_is_async_p ()) |
6426a772 | 1289 | |
9908b566 VP |
1290 | int target_supports_non_stop (void); |
1291 | ||
c378eb4e | 1292 | /* Put the target in async mode with the specified callback function. */ |
0d06e24b | 1293 | #define target_async(CALLBACK,CONTEXT) \ |
b84876c2 | 1294 | (current_target.to_async ((CALLBACK), (CONTEXT))) |
43ff13b4 | 1295 | |
32231432 PA |
1296 | #define target_execution_direction() \ |
1297 | (current_target.to_execution_direction ()) | |
1298 | ||
c906108c SS |
1299 | /* Converts a process id to a string. Usually, the string just contains |
1300 | `process xyz', but on some systems it may contain | |
1301 | `process xyz thread abc'. */ | |
1302 | ||
117de6a9 | 1303 | extern char *target_pid_to_str (ptid_t ptid); |
c906108c | 1304 | |
39f77062 | 1305 | extern char *normal_pid_to_str (ptid_t ptid); |
c5aa993b | 1306 | |
0d06e24b JM |
1307 | /* Return a short string describing extra information about PID, |
1308 | e.g. "sleeping", "runnable", "running on LWP 3". Null return value | |
1309 | is okay. */ | |
1310 | ||
1311 | #define target_extra_thread_info(TP) \ | |
1312 | (current_target.to_extra_thread_info (TP)) | |
ed9a39eb | 1313 | |
4694da01 TT |
1314 | /* Return the thread's name. A NULL result means that the target |
1315 | could not determine this thread's name. */ | |
1316 | ||
1317 | extern char *target_thread_name (struct thread_info *); | |
1318 | ||
c906108c SS |
1319 | /* Attempts to find the pathname of the executable file |
1320 | that was run to create a specified process. | |
1321 | ||
1322 | The process PID must be stopped when this operation is used. | |
c5aa993b | 1323 | |
c906108c SS |
1324 | If the executable file cannot be determined, NULL is returned. |
1325 | ||
1326 | Else, a pointer to a character string containing the pathname | |
1327 | is returned. This string should be copied into a buffer by | |
1328 | the client if the string will not be immediately used, or if | |
0d06e24b | 1329 | it must persist. */ |
c906108c SS |
1330 | |
1331 | #define target_pid_to_exec_file(pid) \ | |
0d06e24b | 1332 | (current_target.to_pid_to_exec_file) (pid) |
c906108c | 1333 | |
3a8f7b07 | 1334 | /* See the to_thread_architecture description in struct target_ops. */ |
c2250ad1 UW |
1335 | |
1336 | #define target_thread_architecture(ptid) \ | |
1337 | (current_target.to_thread_architecture (¤t_target, ptid)) | |
1338 | ||
be4d1333 MS |
1339 | /* |
1340 | * Iterator function for target memory regions. | |
1341 | * Calls a callback function once for each memory region 'mapped' | |
1342 | * in the child process. Defined as a simple macro rather than | |
2146d243 | 1343 | * as a function macro so that it can be tested for nullity. |
be4d1333 MS |
1344 | */ |
1345 | ||
1346 | #define target_find_memory_regions(FUNC, DATA) \ | |
1347 | (current_target.to_find_memory_regions) (FUNC, DATA) | |
1348 | ||
1349 | /* | |
1350 | * Compose corefile .note section. | |
1351 | */ | |
1352 | ||
1353 | #define target_make_corefile_notes(BFD, SIZE_P) \ | |
1354 | (current_target.to_make_corefile_notes) (BFD, SIZE_P) | |
1355 | ||
6b04bdb7 MS |
1356 | /* Bookmark interfaces. */ |
1357 | #define target_get_bookmark(ARGS, FROM_TTY) \ | |
1358 | (current_target.to_get_bookmark) (ARGS, FROM_TTY) | |
1359 | ||
1360 | #define target_goto_bookmark(ARG, FROM_TTY) \ | |
1361 | (current_target.to_goto_bookmark) (ARG, FROM_TTY) | |
1362 | ||
c906108c SS |
1363 | /* Hardware watchpoint interfaces. */ |
1364 | ||
1365 | /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or | |
7f82dfc7 | 1366 | write). Only the INFERIOR_PTID task is being queried. */ |
c906108c | 1367 | |
d92524f1 PM |
1368 | #define target_stopped_by_watchpoint \ |
1369 | (*current_target.to_stopped_by_watchpoint) | |
7df1a324 | 1370 | |
74174d2e UW |
1371 | /* Non-zero if we have steppable watchpoints */ |
1372 | ||
d92524f1 | 1373 | #define target_have_steppable_watchpoint \ |
74174d2e | 1374 | (current_target.to_have_steppable_watchpoint) |
74174d2e | 1375 | |
7df1a324 KW |
1376 | /* Non-zero if we have continuable watchpoints */ |
1377 | ||
d92524f1 | 1378 | #define target_have_continuable_watchpoint \ |
7df1a324 | 1379 | (current_target.to_have_continuable_watchpoint) |
c906108c | 1380 | |
ccaa32c7 | 1381 | /* Provide defaults for hardware watchpoint functions. */ |
c906108c | 1382 | |
2146d243 | 1383 | /* If the *_hw_beakpoint functions have not been defined |
ccaa32c7 | 1384 | elsewhere use the definitions in the target vector. */ |
c906108c SS |
1385 | |
1386 | /* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is | |
1387 | one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or | |
1388 | bp_hardware_breakpoint. CNT is the number of such watchpoints used so far | |
1389 | (including this one?). OTHERTYPE is who knows what... */ | |
1390 | ||
d92524f1 | 1391 | #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \ |
ccaa32c7 | 1392 | (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE); |
c906108c | 1393 | |
e09342b5 TJB |
1394 | /* Returns the number of debug registers needed to watch the given |
1395 | memory region, or zero if not supported. */ | |
1396 | ||
d92524f1 | 1397 | #define target_region_ok_for_hw_watchpoint(addr, len) \ |
e0d24f8d | 1398 | (*current_target.to_region_ok_for_hw_watchpoint) (addr, len) |
e0d24f8d | 1399 | |
c906108c | 1400 | |
85d721b8 PA |
1401 | /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes. |
1402 | TYPE is 0 for write, 1 for read, and 2 for read/write accesses. | |
0cf6dd15 | 1403 | COND is the expression for its condition, or NULL if there's none. |
85d721b8 PA |
1404 | Returns 0 for success, 1 if the watchpoint type is not supported, |
1405 | -1 for failure. */ | |
c906108c | 1406 | |
0cf6dd15 TJB |
1407 | #define target_insert_watchpoint(addr, len, type, cond) \ |
1408 | (*current_target.to_insert_watchpoint) (addr, len, type, cond) | |
c906108c | 1409 | |
0cf6dd15 TJB |
1410 | #define target_remove_watchpoint(addr, len, type, cond) \ |
1411 | (*current_target.to_remove_watchpoint) (addr, len, type, cond) | |
c906108c | 1412 | |
9c06b0b4 TJB |
1413 | /* Insert a new masked watchpoint at ADDR using the mask MASK. |
1414 | RW may be hw_read for a read watchpoint, hw_write for a write watchpoint | |
1415 | or hw_access for an access watchpoint. Returns 0 for success, 1 if | |
1416 | masked watchpoints are not supported, -1 for failure. */ | |
1417 | ||
1418 | extern int target_insert_mask_watchpoint (CORE_ADDR, CORE_ADDR, int); | |
1419 | ||
1420 | /* Remove a masked watchpoint at ADDR with the mask MASK. | |
1421 | RW may be hw_read for a read watchpoint, hw_write for a write watchpoint | |
1422 | or hw_access for an access watchpoint. Returns 0 for success, non-zero | |
1423 | for failure. */ | |
1424 | ||
1425 | extern int target_remove_mask_watchpoint (CORE_ADDR, CORE_ADDR, int); | |
1426 | ||
a6d9a66e UW |
1427 | #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \ |
1428 | (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt) | |
ccaa32c7 | 1429 | |
a6d9a66e UW |
1430 | #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \ |
1431 | (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt) | |
c906108c | 1432 | |
f1310107 TJB |
1433 | /* Return number of debug registers needed for a ranged breakpoint, |
1434 | or -1 if ranged breakpoints are not supported. */ | |
1435 | ||
1436 | extern int target_ranged_break_num_registers (void); | |
1437 | ||
7f82dfc7 JK |
1438 | /* Return non-zero if target knows the data address which triggered this |
1439 | target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the | |
1440 | INFERIOR_PTID task is being queried. */ | |
1441 | #define target_stopped_data_address(target, addr_p) \ | |
1442 | (*target.to_stopped_data_address) (target, addr_p) | |
c906108c | 1443 | |
5009afc5 AS |
1444 | #define target_watchpoint_addr_within_range(target, addr, start, length) \ |
1445 | (*target.to_watchpoint_addr_within_range) (target, addr, start, length) | |
1446 | ||
0cf6dd15 TJB |
1447 | /* Return non-zero if the target is capable of using hardware to evaluate |
1448 | the condition expression. In this case, if the condition is false when | |
1449 | the watched memory location changes, execution may continue without the | |
1450 | debugger being notified. | |
1451 | ||
1452 | Due to limitations in the hardware implementation, it may be capable of | |
1453 | avoiding triggering the watchpoint in some cases where the condition | |
1454 | expression is false, but may report some false positives as well. | |
1455 | For this reason, GDB will still evaluate the condition expression when | |
1456 | the watchpoint triggers. */ | |
1457 | #define target_can_accel_watchpoint_condition(addr, len, type, cond) \ | |
1458 | (*current_target.to_can_accel_watchpoint_condition) (addr, len, type, cond) | |
1459 | ||
9c06b0b4 TJB |
1460 | /* Return number of debug registers needed for a masked watchpoint, |
1461 | -1 if masked watchpoints are not supported or -2 if the given address | |
1462 | and mask combination cannot be used. */ | |
1463 | ||
1464 | extern int target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask); | |
1465 | ||
b2175913 MS |
1466 | /* Target can execute in reverse? */ |
1467 | #define target_can_execute_reverse \ | |
1468 | (current_target.to_can_execute_reverse ? \ | |
1469 | current_target.to_can_execute_reverse () : 0) | |
1470 | ||
424163ea DJ |
1471 | extern const struct target_desc *target_read_description (struct target_ops *); |
1472 | ||
0ef643c8 JB |
1473 | #define target_get_ada_task_ptid(lwp, tid) \ |
1474 | (*current_target.to_get_ada_task_ptid) (lwp,tid) | |
1475 | ||
08388c79 DE |
1476 | /* Utility implementation of searching memory. */ |
1477 | extern int simple_search_memory (struct target_ops* ops, | |
1478 | CORE_ADDR start_addr, | |
1479 | ULONGEST search_space_len, | |
1480 | const gdb_byte *pattern, | |
1481 | ULONGEST pattern_len, | |
1482 | CORE_ADDR *found_addrp); | |
1483 | ||
1484 | /* Main entry point for searching memory. */ | |
1485 | extern int target_search_memory (CORE_ADDR start_addr, | |
1486 | ULONGEST search_space_len, | |
1487 | const gdb_byte *pattern, | |
1488 | ULONGEST pattern_len, | |
1489 | CORE_ADDR *found_addrp); | |
1490 | ||
35b1e5cc SS |
1491 | /* Tracepoint-related operations. */ |
1492 | ||
1493 | #define target_trace_init() \ | |
1494 | (*current_target.to_trace_init) () | |
1495 | ||
1496 | #define target_download_tracepoint(t) \ | |
1497 | (*current_target.to_download_tracepoint) (t) | |
1498 | ||
1e4d1764 YQ |
1499 | #define target_can_download_tracepoint() \ |
1500 | (*current_target.to_can_download_tracepoint) () | |
1501 | ||
35b1e5cc SS |
1502 | #define target_download_trace_state_variable(tsv) \ |
1503 | (*current_target.to_download_trace_state_variable) (tsv) | |
1504 | ||
d248b706 KY |
1505 | #define target_enable_tracepoint(loc) \ |
1506 | (*current_target.to_enable_tracepoint) (loc) | |
1507 | ||
1508 | #define target_disable_tracepoint(loc) \ | |
1509 | (*current_target.to_disable_tracepoint) (loc) | |
1510 | ||
35b1e5cc SS |
1511 | #define target_trace_start() \ |
1512 | (*current_target.to_trace_start) () | |
1513 | ||
1514 | #define target_trace_set_readonly_regions() \ | |
1515 | (*current_target.to_trace_set_readonly_regions) () | |
1516 | ||
00bf0b85 SS |
1517 | #define target_get_trace_status(ts) \ |
1518 | (*current_target.to_get_trace_status) (ts) | |
35b1e5cc | 1519 | |
f196051f SS |
1520 | #define target_get_tracepoint_status(tp,utp) \ |
1521 | (*current_target.to_get_tracepoint_status) (tp, utp) | |
1522 | ||
35b1e5cc SS |
1523 | #define target_trace_stop() \ |
1524 | (*current_target.to_trace_stop) () | |
1525 | ||
1526 | #define target_trace_find(type,num,addr1,addr2,tpp) \ | |
1527 | (*current_target.to_trace_find) ((type), (num), (addr1), (addr2), (tpp)) | |
1528 | ||
1529 | #define target_get_trace_state_variable_value(tsv,val) \ | |
1530 | (*current_target.to_get_trace_state_variable_value) ((tsv), (val)) | |
1531 | ||
00bf0b85 SS |
1532 | #define target_save_trace_data(filename) \ |
1533 | (*current_target.to_save_trace_data) (filename) | |
1534 | ||
1535 | #define target_upload_tracepoints(utpp) \ | |
1536 | (*current_target.to_upload_tracepoints) (utpp) | |
1537 | ||
1538 | #define target_upload_trace_state_variables(utsvp) \ | |
1539 | (*current_target.to_upload_trace_state_variables) (utsvp) | |
1540 | ||
1541 | #define target_get_raw_trace_data(buf,offset,len) \ | |
1542 | (*current_target.to_get_raw_trace_data) ((buf), (offset), (len)) | |
1543 | ||
405f8e94 SS |
1544 | #define target_get_min_fast_tracepoint_insn_len() \ |
1545 | (*current_target.to_get_min_fast_tracepoint_insn_len) () | |
1546 | ||
35b1e5cc SS |
1547 | #define target_set_disconnected_tracing(val) \ |
1548 | (*current_target.to_set_disconnected_tracing) (val) | |
1549 | ||
4daf5ac0 SS |
1550 | #define target_set_circular_trace_buffer(val) \ |
1551 | (*current_target.to_set_circular_trace_buffer) (val) | |
1552 | ||
f196051f SS |
1553 | #define target_set_trace_notes(user,notes,stopnotes) \ |
1554 | (*current_target.to_set_trace_notes) ((user), (notes), (stopnotes)) | |
1555 | ||
711e434b PM |
1556 | #define target_get_tib_address(ptid, addr) \ |
1557 | (*current_target.to_get_tib_address) ((ptid), (addr)) | |
1558 | ||
d914c394 SS |
1559 | #define target_set_permissions() \ |
1560 | (*current_target.to_set_permissions) () | |
1561 | ||
0fb4aa4b PA |
1562 | #define target_static_tracepoint_marker_at(addr, marker) \ |
1563 | (*current_target.to_static_tracepoint_marker_at) (addr, marker) | |
1564 | ||
1565 | #define target_static_tracepoint_markers_by_strid(marker_id) \ | |
1566 | (*current_target.to_static_tracepoint_markers_by_strid) (marker_id) | |
1567 | ||
b3b9301e PA |
1568 | #define target_traceframe_info() \ |
1569 | (*current_target.to_traceframe_info) () | |
1570 | ||
49d03eab MR |
1571 | /* Command logging facility. */ |
1572 | ||
1573 | #define target_log_command(p) \ | |
1574 | do \ | |
1575 | if (current_target.to_log_command) \ | |
1576 | (*current_target.to_log_command) (p); \ | |
1577 | while (0) | |
1578 | ||
dc146f7c VP |
1579 | |
1580 | extern int target_core_of_thread (ptid_t ptid); | |
1581 | ||
4a5e7a5b PA |
1582 | /* Verify that the memory in the [MEMADDR, MEMADDR+SIZE) range matches |
1583 | the contents of [DATA,DATA+SIZE). Returns 1 if there's a match, 0 | |
1584 | if there's a mismatch, and -1 if an error is encountered while | |
1585 | reading memory. Throws an error if the functionality is found not | |
1586 | to be supported by the current target. */ | |
1587 | int target_verify_memory (const gdb_byte *data, | |
1588 | CORE_ADDR memaddr, ULONGEST size); | |
1589 | ||
c906108c SS |
1590 | /* Routines for maintenance of the target structures... |
1591 | ||
1592 | add_target: Add a target to the list of all possible targets. | |
1593 | ||
1594 | push_target: Make this target the top of the stack of currently used | |
c5aa993b JM |
1595 | targets, within its particular stratum of the stack. Result |
1596 | is 0 if now atop the stack, nonzero if not on top (maybe | |
1597 | should warn user). | |
c906108c SS |
1598 | |
1599 | unpush_target: Remove this from the stack of currently used targets, | |
c5aa993b JM |
1600 | no matter where it is on the list. Returns 0 if no |
1601 | change, 1 if removed from stack. | |
c906108c | 1602 | |
c5aa993b | 1603 | pop_target: Remove the top thing on the stack of current targets. */ |
c906108c | 1604 | |
a14ed312 | 1605 | extern void add_target (struct target_ops *); |
c906108c | 1606 | |
b26a4dcb | 1607 | extern void push_target (struct target_ops *); |
c906108c | 1608 | |
a14ed312 | 1609 | extern int unpush_target (struct target_ops *); |
c906108c | 1610 | |
fd79ecee DJ |
1611 | extern void target_pre_inferior (int); |
1612 | ||
a14ed312 | 1613 | extern void target_preopen (int); |
c906108c | 1614 | |
a14ed312 | 1615 | extern void pop_target (void); |
c906108c | 1616 | |
aa76d38d PA |
1617 | /* Does whatever cleanup is required to get rid of all pushed targets. |
1618 | QUITTING is propagated to target_close; it indicates that GDB is | |
1619 | exiting and should not get hung on an error (otherwise it is | |
1620 | important to perform clean termination, even if it takes a | |
1621 | while). */ | |
1622 | extern void pop_all_targets (int quitting); | |
1623 | ||
87ab71f0 PA |
1624 | /* Like pop_all_targets, but pops only targets whose stratum is |
1625 | strictly above ABOVE_STRATUM. */ | |
1626 | extern void pop_all_targets_above (enum strata above_stratum, int quitting); | |
1627 | ||
c0edd9ed JK |
1628 | extern int target_is_pushed (struct target_ops *t); |
1629 | ||
9e35dae4 DJ |
1630 | extern CORE_ADDR target_translate_tls_address (struct objfile *objfile, |
1631 | CORE_ADDR offset); | |
1632 | ||
0542c86d | 1633 | /* Struct target_section maps address ranges to file sections. It is |
c906108c SS |
1634 | mostly used with BFD files, but can be used without (e.g. for handling |
1635 | raw disks, or files not in formats handled by BFD). */ | |
1636 | ||
0542c86d | 1637 | struct target_section |
c5aa993b JM |
1638 | { |
1639 | CORE_ADDR addr; /* Lowest address in section */ | |
1640 | CORE_ADDR endaddr; /* 1+highest address in section */ | |
c906108c | 1641 | |
7be0c536 | 1642 | struct bfd_section *the_bfd_section; |
c906108c | 1643 | |
c5aa993b JM |
1644 | bfd *bfd; /* BFD file pointer */ |
1645 | }; | |
c906108c | 1646 | |
07b82ea5 PA |
1647 | /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */ |
1648 | ||
1649 | struct target_section_table | |
1650 | { | |
1651 | struct target_section *sections; | |
1652 | struct target_section *sections_end; | |
1653 | }; | |
1654 | ||
8db32d44 | 1655 | /* Return the "section" containing the specified address. */ |
0542c86d PA |
1656 | struct target_section *target_section_by_addr (struct target_ops *target, |
1657 | CORE_ADDR addr); | |
8db32d44 | 1658 | |
07b82ea5 PA |
1659 | /* Return the target section table this target (or the targets |
1660 | beneath) currently manipulate. */ | |
1661 | ||
1662 | extern struct target_section_table *target_get_section_table | |
1663 | (struct target_ops *target); | |
1664 | ||
c906108c SS |
1665 | /* From mem-break.c */ |
1666 | ||
3e43a32a MS |
1667 | extern int memory_remove_breakpoint (struct gdbarch *, |
1668 | struct bp_target_info *); | |
c906108c | 1669 | |
3e43a32a MS |
1670 | extern int memory_insert_breakpoint (struct gdbarch *, |
1671 | struct bp_target_info *); | |
c906108c | 1672 | |
3e43a32a MS |
1673 | extern int default_memory_remove_breakpoint (struct gdbarch *, |
1674 | struct bp_target_info *); | |
917317f4 | 1675 | |
3e43a32a MS |
1676 | extern int default_memory_insert_breakpoint (struct gdbarch *, |
1677 | struct bp_target_info *); | |
917317f4 | 1678 | |
c906108c SS |
1679 | |
1680 | /* From target.c */ | |
1681 | ||
a14ed312 | 1682 | extern void initialize_targets (void); |
c906108c | 1683 | |
c25c4a8b | 1684 | extern void noprocess (void) ATTRIBUTE_NORETURN; |
c906108c | 1685 | |
8edfe269 DJ |
1686 | extern void target_require_runnable (void); |
1687 | ||
136d6dae | 1688 | extern void find_default_attach (struct target_ops *, char *, int); |
c906108c | 1689 | |
136d6dae VP |
1690 | extern void find_default_create_inferior (struct target_ops *, |
1691 | char *, char *, char **, int); | |
c906108c | 1692 | |
a14ed312 | 1693 | extern struct target_ops *find_run_target (void); |
7a292a7a | 1694 | |
a14ed312 | 1695 | extern struct target_ops *find_target_beneath (struct target_ops *); |
ed9a39eb | 1696 | |
e0665bc8 PA |
1697 | /* Read OS data object of type TYPE from the target, and return it in |
1698 | XML format. The result is NUL-terminated and returned as a string, | |
1699 | allocated using xmalloc. If an error occurs or the transfer is | |
1700 | unsupported, NULL is returned. Empty objects are returned as | |
1701 | allocated but empty strings. */ | |
1702 | ||
07e059b5 VP |
1703 | extern char *target_get_osdata (const char *type); |
1704 | ||
c906108c SS |
1705 | \f |
1706 | /* Stuff that should be shared among the various remote targets. */ | |
1707 | ||
1708 | /* Debugging level. 0 is off, and non-zero values mean to print some debug | |
1709 | information (higher values, more information). */ | |
1710 | extern int remote_debug; | |
1711 | ||
1712 | /* Speed in bits per second, or -1 which means don't mess with the speed. */ | |
1713 | extern int baud_rate; | |
c378eb4e | 1714 | /* Timeout limit for response from target. */ |
c906108c SS |
1715 | extern int remote_timeout; |
1716 | ||
c906108c SS |
1717 | \f |
1718 | /* Functions for helping to write a native target. */ | |
1719 | ||
1720 | /* This is for native targets which use a unix/POSIX-style waitstatus. */ | |
a14ed312 | 1721 | extern void store_waitstatus (struct target_waitstatus *, int); |
c906108c | 1722 | |
2aecd87f | 1723 | /* These are in common/signals.c, but they're only used by gdb. */ |
1cded358 AR |
1724 | extern enum target_signal default_target_signal_from_host (struct gdbarch *, |
1725 | int); | |
1726 | extern int default_target_signal_to_host (struct gdbarch *, | |
1727 | enum target_signal); | |
1728 | ||
c906108c | 1729 | /* Convert from a number used in a GDB command to an enum target_signal. */ |
a14ed312 | 1730 | extern enum target_signal target_signal_from_command (int); |
2aecd87f | 1731 | /* End of files in common/signals.c. */ |
c906108c | 1732 | |
8defab1a DJ |
1733 | /* Set the show memory breakpoints mode to show, and installs a cleanup |
1734 | to restore it back to the current value. */ | |
1735 | extern struct cleanup *make_show_memory_breakpoints_cleanup (int show); | |
1736 | ||
d914c394 SS |
1737 | extern int may_write_registers; |
1738 | extern int may_write_memory; | |
1739 | extern int may_insert_breakpoints; | |
1740 | extern int may_insert_tracepoints; | |
1741 | extern int may_insert_fast_tracepoints; | |
1742 | extern int may_stop; | |
1743 | ||
1744 | extern void update_target_permissions (void); | |
1745 | ||
c906108c | 1746 | \f |
c378eb4e | 1747 | /* Imported from machine dependent code. */ |
c906108c | 1748 | |
c378eb4e | 1749 | /* Blank target vector entries are initialized to target_ignore. */ |
a14ed312 | 1750 | void target_ignore (void); |
c906108c | 1751 | |
c5aa993b | 1752 | #endif /* !defined (TARGET_H) */ |