Commit | Line | Data |
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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, |
4c38e0a4 | 4 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
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; |
da3331ec | 35 | |
c906108c SS |
36 | /* This include file defines the interface between the main part |
37 | of the debugger, and the part which is target-specific, or | |
38 | specific to the communications interface between us and the | |
39 | target. | |
40 | ||
2146d243 RM |
41 | A TARGET is an interface between the debugger and a particular |
42 | kind of file or process. Targets can be STACKED in STRATA, | |
c906108c SS |
43 | so that more than one target can potentially respond to a request. |
44 | In particular, memory accesses will walk down the stack of targets | |
45 | until they find a target that is interested in handling that particular | |
46 | address. STRATA are artificial boundaries on the stack, within | |
47 | which particular kinds of targets live. Strata exist so that | |
48 | people don't get confused by pushing e.g. a process target and then | |
49 | a file target, and wondering why they can't see the current values | |
50 | of variables any more (the file target is handling them and they | |
51 | never get to the process target). So when you push a file target, | |
52 | it goes into the file stratum, which is always below the process | |
53 | stratum. */ | |
54 | ||
55 | #include "bfd.h" | |
56 | #include "symtab.h" | |
29e57380 | 57 | #include "memattr.h" |
fd79ecee | 58 | #include "vec.h" |
2aecd87f | 59 | #include "gdb_signals.h" |
c906108c | 60 | |
c5aa993b JM |
61 | enum strata |
62 | { | |
63 | dummy_stratum, /* The lowest of the low */ | |
64 | file_stratum, /* Executable files, etc */ | |
4d8ac244 | 65 | core_stratum, /* Core dump files */ |
d4f3574e | 66 | process_stratum, /* Executing processes */ |
81e64f55 | 67 | thread_stratum, /* Executing threads */ |
85e747d2 UW |
68 | record_stratum, /* Support record debugging */ |
69 | arch_stratum /* Architecture overrides */ | |
c5aa993b | 70 | }; |
c906108c | 71 | |
c5aa993b JM |
72 | enum thread_control_capabilities |
73 | { | |
0d06e24b JM |
74 | tc_none = 0, /* Default: can't control thread execution. */ |
75 | tc_schedlock = 1, /* Can lock the thread scheduler. */ | |
c5aa993b | 76 | }; |
c906108c SS |
77 | |
78 | /* Stuff for target_wait. */ | |
79 | ||
80 | /* Generally, what has the program done? */ | |
c5aa993b JM |
81 | enum target_waitkind |
82 | { | |
83 | /* The program has exited. The exit status is in value.integer. */ | |
84 | TARGET_WAITKIND_EXITED, | |
c906108c | 85 | |
0d06e24b JM |
86 | /* The program has stopped with a signal. Which signal is in |
87 | value.sig. */ | |
c5aa993b | 88 | TARGET_WAITKIND_STOPPED, |
c906108c | 89 | |
c5aa993b JM |
90 | /* The program has terminated with a signal. Which signal is in |
91 | value.sig. */ | |
92 | TARGET_WAITKIND_SIGNALLED, | |
c906108c | 93 | |
c5aa993b JM |
94 | /* The program is letting us know that it dynamically loaded something |
95 | (e.g. it called load(2) on AIX). */ | |
96 | TARGET_WAITKIND_LOADED, | |
c906108c | 97 | |
3a3e9ee3 | 98 | /* The program has forked. A "related" process' PTID is in |
0d06e24b JM |
99 | value.related_pid. I.e., if the child forks, value.related_pid |
100 | is the parent's ID. */ | |
101 | ||
c5aa993b | 102 | TARGET_WAITKIND_FORKED, |
c906108c | 103 | |
3a3e9ee3 | 104 | /* The program has vforked. A "related" process's PTID is in |
0d06e24b JM |
105 | value.related_pid. */ |
106 | ||
c5aa993b | 107 | TARGET_WAITKIND_VFORKED, |
c906108c | 108 | |
0d06e24b JM |
109 | /* The program has exec'ed a new executable file. The new file's |
110 | pathname is pointed to by value.execd_pathname. */ | |
111 | ||
c5aa993b | 112 | TARGET_WAITKIND_EXECD, |
c906108c | 113 | |
6c95b8df PA |
114 | /* The program had previously vforked, and now the child is done |
115 | with the shared memory region, because it exec'ed or exited. | |
116 | Note that the event is reported to the vfork parent. This is | |
117 | only used if GDB did not stay attached to the vfork child, | |
118 | otherwise, a TARGET_WAITKIND_EXECD or | |
119 | TARGET_WAITKIND_EXIT|SIGNALLED event associated with the child | |
120 | has the same effect. */ | |
121 | TARGET_WAITKIND_VFORK_DONE, | |
122 | ||
0d06e24b JM |
123 | /* The program has entered or returned from a system call. On |
124 | HP-UX, this is used in the hardware watchpoint implementation. | |
125 | The syscall's unique integer ID number is in value.syscall_id */ | |
126 | ||
c5aa993b JM |
127 | TARGET_WAITKIND_SYSCALL_ENTRY, |
128 | TARGET_WAITKIND_SYSCALL_RETURN, | |
c906108c | 129 | |
c5aa993b JM |
130 | /* Nothing happened, but we stopped anyway. This perhaps should be handled |
131 | within target_wait, but I'm not sure target_wait should be resuming the | |
132 | inferior. */ | |
c4093a6a JM |
133 | TARGET_WAITKIND_SPURIOUS, |
134 | ||
8e7d2c16 DJ |
135 | /* An event has occured, but we should wait again. |
136 | Remote_async_wait() returns this when there is an event | |
c4093a6a JM |
137 | on the inferior, but the rest of the world is not interested in |
138 | it. The inferior has not stopped, but has just sent some output | |
139 | to the console, for instance. In this case, we want to go back | |
140 | to the event loop and wait there for another event from the | |
141 | inferior, rather than being stuck in the remote_async_wait() | |
142 | function. This way the event loop is responsive to other events, | |
0d06e24b | 143 | like for instance the user typing. */ |
b2175913 MS |
144 | TARGET_WAITKIND_IGNORE, |
145 | ||
146 | /* The target has run out of history information, | |
147 | and cannot run backward any further. */ | |
148 | TARGET_WAITKIND_NO_HISTORY | |
c906108c SS |
149 | }; |
150 | ||
c5aa993b JM |
151 | struct target_waitstatus |
152 | { | |
153 | enum target_waitkind kind; | |
154 | ||
a96d9b2e SDJ |
155 | /* Forked child pid, execd pathname, exit status, signal number or |
156 | syscall number. */ | |
c5aa993b JM |
157 | union |
158 | { | |
159 | int integer; | |
160 | enum target_signal sig; | |
3a3e9ee3 | 161 | ptid_t related_pid; |
c5aa993b | 162 | char *execd_pathname; |
a96d9b2e | 163 | int syscall_number; |
c5aa993b JM |
164 | } |
165 | value; | |
166 | }; | |
c906108c | 167 | |
47608cb1 PA |
168 | /* Options that can be passed to target_wait. */ |
169 | ||
170 | /* Return immediately if there's no event already queued. If this | |
171 | options is not requested, target_wait blocks waiting for an | |
172 | event. */ | |
173 | #define TARGET_WNOHANG 1 | |
174 | ||
a96d9b2e SDJ |
175 | /* The structure below stores information about a system call. |
176 | It is basically used in the "catch syscall" command, and in | |
177 | every function that gives information about a system call. | |
178 | ||
179 | It's also good to mention that its fields represent everything | |
180 | that we currently know about a syscall in GDB. */ | |
181 | struct syscall | |
182 | { | |
183 | /* The syscall number. */ | |
184 | int number; | |
185 | ||
186 | /* The syscall name. */ | |
187 | const char *name; | |
188 | }; | |
189 | ||
f00150c9 DE |
190 | /* Return a pretty printed form of target_waitstatus. |
191 | Space for the result is malloc'd, caller must free. */ | |
192 | extern char *target_waitstatus_to_string (const struct target_waitstatus *); | |
193 | ||
2acceee2 | 194 | /* Possible types of events that the inferior handler will have to |
0d06e24b | 195 | deal with. */ |
2acceee2 JM |
196 | enum inferior_event_type |
197 | { | |
0d06e24b | 198 | /* There is a request to quit the inferior, abandon it. */ |
2acceee2 JM |
199 | INF_QUIT_REQ, |
200 | /* Process a normal inferior event which will result in target_wait | |
0d06e24b | 201 | being called. */ |
2146d243 | 202 | INF_REG_EVENT, |
0d06e24b | 203 | /* Deal with an error on the inferior. */ |
2acceee2 | 204 | INF_ERROR, |
0d06e24b | 205 | /* We are called because a timer went off. */ |
2acceee2 | 206 | INF_TIMER, |
0d06e24b | 207 | /* We are called to do stuff after the inferior stops. */ |
c2d11a7d JM |
208 | INF_EXEC_COMPLETE, |
209 | /* We are called to do some stuff after the inferior stops, but we | |
210 | are expected to reenter the proceed() and | |
211 | handle_inferior_event() functions. This is used only in case of | |
0d06e24b | 212 | 'step n' like commands. */ |
c2d11a7d | 213 | INF_EXEC_CONTINUE |
2acceee2 | 214 | }; |
c906108c | 215 | \f |
13547ab6 DJ |
216 | /* Target objects which can be transfered using target_read, |
217 | target_write, et cetera. */ | |
1e3ff5ad AC |
218 | |
219 | enum target_object | |
220 | { | |
1e3ff5ad AC |
221 | /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */ |
222 | TARGET_OBJECT_AVR, | |
23d964e7 UW |
223 | /* SPU target specific transfer. See "spu-tdep.c". */ |
224 | TARGET_OBJECT_SPU, | |
1e3ff5ad | 225 | /* Transfer up-to LEN bytes of memory starting at OFFSET. */ |
287a334e | 226 | TARGET_OBJECT_MEMORY, |
cf7a04e8 DJ |
227 | /* Memory, avoiding GDB's data cache and trusting the executable. |
228 | Target implementations of to_xfer_partial never need to handle | |
229 | this object, and most callers should not use it. */ | |
230 | TARGET_OBJECT_RAW_MEMORY, | |
4e5d721f DE |
231 | /* Memory known to be part of the target's stack. This is cached even |
232 | if it is not in a region marked as such, since it is known to be | |
233 | "normal" RAM. */ | |
234 | TARGET_OBJECT_STACK_MEMORY, | |
287a334e JJ |
235 | /* Kernel Unwind Table. See "ia64-tdep.c". */ |
236 | TARGET_OBJECT_UNWIND_TABLE, | |
2146d243 RM |
237 | /* Transfer auxilliary vector. */ |
238 | TARGET_OBJECT_AUXV, | |
baf92889 | 239 | /* StackGhost cookie. See "sparc-tdep.c". */ |
fd79ecee DJ |
240 | TARGET_OBJECT_WCOOKIE, |
241 | /* Target memory map in XML format. */ | |
242 | TARGET_OBJECT_MEMORY_MAP, | |
a76d924d DJ |
243 | /* Flash memory. This object can be used to write contents to |
244 | a previously erased flash memory. Using it without erasing | |
245 | flash can have unexpected results. Addresses are physical | |
246 | address on target, and not relative to flash start. */ | |
23181151 DJ |
247 | TARGET_OBJECT_FLASH, |
248 | /* Available target-specific features, e.g. registers and coprocessors. | |
249 | See "target-descriptions.c". ANNEX should never be empty. */ | |
cfa9d6d9 DJ |
250 | TARGET_OBJECT_AVAILABLE_FEATURES, |
251 | /* Currently loaded libraries, in XML format. */ | |
07e059b5 VP |
252 | TARGET_OBJECT_LIBRARIES, |
253 | /* Get OS specific data. The ANNEX specifies the type (running | |
254 | processes, etc.). */ | |
4aa995e1 PA |
255 | TARGET_OBJECT_OSDATA, |
256 | /* Extra signal info. Usually the contents of `siginfo_t' on unix | |
257 | platforms. */ | |
258 | TARGET_OBJECT_SIGNAL_INFO, | |
07e059b5 | 259 | /* Possible future objects: TARGET_OBJECT_FILE, ... */ |
1e3ff5ad AC |
260 | }; |
261 | ||
35b1e5cc SS |
262 | /* Enumeration of the kinds of traceframe searches that a target may |
263 | be able to perform. */ | |
264 | ||
265 | enum trace_find_type | |
266 | { | |
267 | tfind_number, | |
268 | tfind_pc, | |
269 | tfind_tp, | |
270 | tfind_range, | |
271 | tfind_outside, | |
272 | }; | |
273 | ||
13547ab6 DJ |
274 | /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
275 | OBJECT. The OFFSET, for a seekable object, specifies the | |
276 | starting point. The ANNEX can be used to provide additional | |
277 | data-specific information to the target. | |
1e3ff5ad | 278 | |
13547ab6 DJ |
279 | Return the number of bytes actually transfered, or -1 if the |
280 | transfer is not supported or otherwise fails. Return of a positive | |
281 | value less than LEN indicates that no further transfer is possible. | |
282 | Unlike the raw to_xfer_partial interface, callers of these | |
283 | functions do not need to retry partial transfers. */ | |
1e3ff5ad | 284 | |
1e3ff5ad AC |
285 | extern LONGEST target_read (struct target_ops *ops, |
286 | enum target_object object, | |
1b0ba102 | 287 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
288 | ULONGEST offset, LONGEST len); |
289 | ||
d5086790 VP |
290 | extern LONGEST target_read_until_error (struct target_ops *ops, |
291 | enum target_object object, | |
292 | const char *annex, gdb_byte *buf, | |
293 | ULONGEST offset, LONGEST len); | |
294 | ||
1e3ff5ad AC |
295 | extern LONGEST target_write (struct target_ops *ops, |
296 | enum target_object object, | |
1b0ba102 | 297 | const char *annex, const gdb_byte *buf, |
1e3ff5ad | 298 | ULONGEST offset, LONGEST len); |
b6591e8b | 299 | |
a76d924d DJ |
300 | /* Similar to target_write, except that it also calls PROGRESS with |
301 | the number of bytes written and the opaque BATON after every | |
302 | successful partial write (and before the first write). This is | |
303 | useful for progress reporting and user interaction while writing | |
304 | data. To abort the transfer, the progress callback can throw an | |
305 | exception. */ | |
306 | ||
cf7a04e8 DJ |
307 | LONGEST target_write_with_progress (struct target_ops *ops, |
308 | enum target_object object, | |
309 | const char *annex, const gdb_byte *buf, | |
310 | ULONGEST offset, LONGEST len, | |
311 | void (*progress) (ULONGEST, void *), | |
312 | void *baton); | |
313 | ||
13547ab6 DJ |
314 | /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will |
315 | be read using OPS. The return value will be -1 if the transfer | |
316 | fails or is not supported; 0 if the object is empty; or the length | |
317 | of the object otherwise. If a positive value is returned, a | |
318 | sufficiently large buffer will be allocated using xmalloc and | |
319 | returned in *BUF_P containing the contents of the object. | |
320 | ||
321 | This method should be used for objects sufficiently small to store | |
322 | in a single xmalloc'd buffer, when no fixed bound on the object's | |
323 | size is known in advance. Don't try to read TARGET_OBJECT_MEMORY | |
324 | through this function. */ | |
325 | ||
326 | extern LONGEST target_read_alloc (struct target_ops *ops, | |
327 | enum target_object object, | |
328 | const char *annex, gdb_byte **buf_p); | |
329 | ||
159f81f3 DJ |
330 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and |
331 | returned as a string, allocated using xmalloc. If an error occurs | |
332 | or the transfer is unsupported, NULL is returned. Empty objects | |
333 | are returned as allocated but empty strings. A warning is issued | |
334 | if the result contains any embedded NUL bytes. */ | |
335 | ||
336 | extern char *target_read_stralloc (struct target_ops *ops, | |
337 | enum target_object object, | |
338 | const char *annex); | |
339 | ||
b6591e8b AC |
340 | /* Wrappers to target read/write that perform memory transfers. They |
341 | throw an error if the memory transfer fails. | |
342 | ||
343 | NOTE: cagney/2003-10-23: The naming schema is lifted from | |
344 | "frame.h". The parameter order is lifted from get_frame_memory, | |
345 | which in turn lifted it from read_memory. */ | |
346 | ||
347 | extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr, | |
1b0ba102 | 348 | gdb_byte *buf, LONGEST len); |
b6591e8b | 349 | extern ULONGEST get_target_memory_unsigned (struct target_ops *ops, |
e17a4113 UW |
350 | CORE_ADDR addr, int len, |
351 | enum bfd_endian byte_order); | |
1e3ff5ad | 352 | \f |
0d06e24b JM |
353 | struct thread_info; /* fwd decl for parameter list below: */ |
354 | ||
c906108c | 355 | struct target_ops |
c5aa993b | 356 | { |
258b763a | 357 | struct target_ops *beneath; /* To the target under this one. */ |
c5aa993b JM |
358 | char *to_shortname; /* Name this target type */ |
359 | char *to_longname; /* Name for printing */ | |
360 | char *to_doc; /* Documentation. Does not include trailing | |
c906108c | 361 | newline, and starts with a one-line descrip- |
0d06e24b | 362 | tion (probably similar to to_longname). */ |
bba2d28d AC |
363 | /* Per-target scratch pad. */ |
364 | void *to_data; | |
f1c07ab0 AC |
365 | /* The open routine takes the rest of the parameters from the |
366 | command, and (if successful) pushes a new target onto the | |
367 | stack. Targets should supply this routine, if only to provide | |
368 | an error message. */ | |
507f3c78 | 369 | void (*to_open) (char *, int); |
f1c07ab0 AC |
370 | /* Old targets with a static target vector provide "to_close". |
371 | New re-entrant targets provide "to_xclose" and that is expected | |
372 | to xfree everything (including the "struct target_ops"). */ | |
373 | void (*to_xclose) (struct target_ops *targ, int quitting); | |
507f3c78 | 374 | void (*to_close) (int); |
136d6dae | 375 | void (*to_attach) (struct target_ops *ops, char *, int); |
507f3c78 | 376 | void (*to_post_attach) (int); |
136d6dae | 377 | void (*to_detach) (struct target_ops *ops, char *, int); |
597320e7 | 378 | void (*to_disconnect) (struct target_ops *, char *, int); |
28439f5e | 379 | void (*to_resume) (struct target_ops *, ptid_t, int, enum target_signal); |
117de6a9 | 380 | ptid_t (*to_wait) (struct target_ops *, |
47608cb1 | 381 | ptid_t, struct target_waitstatus *, int); |
28439f5e PA |
382 | void (*to_fetch_registers) (struct target_ops *, struct regcache *, int); |
383 | void (*to_store_registers) (struct target_ops *, struct regcache *, int); | |
316f2060 | 384 | void (*to_prepare_to_store) (struct regcache *); |
c5aa993b JM |
385 | |
386 | /* Transfer LEN bytes of memory between GDB address MYADDR and | |
387 | target address MEMADDR. If WRITE, transfer them to the target, else | |
388 | transfer them from the target. TARGET is the target from which we | |
389 | get this function. | |
390 | ||
391 | Return value, N, is one of the following: | |
392 | ||
393 | 0 means that we can't handle this. If errno has been set, it is the | |
394 | error which prevented us from doing it (FIXME: What about bfd_error?). | |
395 | ||
396 | positive (call it N) means that we have transferred N bytes | |
397 | starting at MEMADDR. We might be able to handle more bytes | |
398 | beyond this length, but no promises. | |
399 | ||
400 | negative (call its absolute value N) means that we cannot | |
401 | transfer right at MEMADDR, but we could transfer at least | |
c8e73a31 | 402 | something at MEMADDR + N. |
c5aa993b | 403 | |
c8e73a31 AC |
404 | NOTE: cagney/2004-10-01: This has been entirely superseeded by |
405 | to_xfer_partial and inferior inheritance. */ | |
406 | ||
1b0ba102 | 407 | int (*deprecated_xfer_memory) (CORE_ADDR memaddr, gdb_byte *myaddr, |
c8e73a31 AC |
408 | int len, int write, |
409 | struct mem_attrib *attrib, | |
410 | struct target_ops *target); | |
c906108c | 411 | |
507f3c78 | 412 | void (*to_files_info) (struct target_ops *); |
a6d9a66e UW |
413 | int (*to_insert_breakpoint) (struct gdbarch *, struct bp_target_info *); |
414 | int (*to_remove_breakpoint) (struct gdbarch *, struct bp_target_info *); | |
ccaa32c7 | 415 | int (*to_can_use_hw_breakpoint) (int, int, int); |
a6d9a66e UW |
416 | int (*to_insert_hw_breakpoint) (struct gdbarch *, struct bp_target_info *); |
417 | int (*to_remove_hw_breakpoint) (struct gdbarch *, struct bp_target_info *); | |
ccaa32c7 GS |
418 | int (*to_remove_watchpoint) (CORE_ADDR, int, int); |
419 | int (*to_insert_watchpoint) (CORE_ADDR, int, int); | |
420 | int (*to_stopped_by_watchpoint) (void); | |
74174d2e | 421 | int to_have_steppable_watchpoint; |
7df1a324 | 422 | int to_have_continuable_watchpoint; |
4aa7a7f5 | 423 | int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *); |
5009afc5 AS |
424 | int (*to_watchpoint_addr_within_range) (struct target_ops *, |
425 | CORE_ADDR, CORE_ADDR, int); | |
e0d24f8d | 426 | int (*to_region_ok_for_hw_watchpoint) (CORE_ADDR, int); |
507f3c78 KB |
427 | void (*to_terminal_init) (void); |
428 | void (*to_terminal_inferior) (void); | |
429 | void (*to_terminal_ours_for_output) (void); | |
430 | void (*to_terminal_ours) (void); | |
a790ad35 | 431 | void (*to_terminal_save_ours) (void); |
507f3c78 | 432 | void (*to_terminal_info) (char *, int); |
7d85a9c0 | 433 | void (*to_kill) (struct target_ops *); |
507f3c78 KB |
434 | void (*to_load) (char *, int); |
435 | int (*to_lookup_symbol) (char *, CORE_ADDR *); | |
136d6dae VP |
436 | void (*to_create_inferior) (struct target_ops *, |
437 | char *, char *, char **, int); | |
39f77062 | 438 | void (*to_post_startup_inferior) (ptid_t); |
507f3c78 | 439 | void (*to_acknowledge_created_inferior) (int); |
fa113d1a | 440 | void (*to_insert_fork_catchpoint) (int); |
507f3c78 | 441 | int (*to_remove_fork_catchpoint) (int); |
fa113d1a | 442 | void (*to_insert_vfork_catchpoint) (int); |
507f3c78 | 443 | int (*to_remove_vfork_catchpoint) (int); |
ee057212 | 444 | int (*to_follow_fork) (struct target_ops *, int); |
fa113d1a | 445 | void (*to_insert_exec_catchpoint) (int); |
507f3c78 | 446 | int (*to_remove_exec_catchpoint) (int); |
a96d9b2e | 447 | int (*to_set_syscall_catchpoint) (int, int, int, int, int *); |
507f3c78 | 448 | int (*to_has_exited) (int, int, int *); |
136d6dae | 449 | void (*to_mourn_inferior) (struct target_ops *); |
507f3c78 | 450 | int (*to_can_run) (void); |
39f77062 | 451 | void (*to_notice_signals) (ptid_t ptid); |
28439f5e PA |
452 | int (*to_thread_alive) (struct target_ops *, ptid_t ptid); |
453 | void (*to_find_new_threads) (struct target_ops *); | |
117de6a9 | 454 | char *(*to_pid_to_str) (struct target_ops *, ptid_t); |
507f3c78 | 455 | char *(*to_extra_thread_info) (struct thread_info *); |
94cc34af | 456 | void (*to_stop) (ptid_t); |
d9fcf2fb | 457 | void (*to_rcmd) (char *command, struct ui_file *output); |
507f3c78 | 458 | char *(*to_pid_to_exec_file) (int pid); |
49d03eab | 459 | void (*to_log_command) (const char *); |
07b82ea5 | 460 | struct target_section_table *(*to_get_section_table) (struct target_ops *); |
c5aa993b | 461 | enum strata to_stratum; |
c35b1492 PA |
462 | int (*to_has_all_memory) (struct target_ops *); |
463 | int (*to_has_memory) (struct target_ops *); | |
464 | int (*to_has_stack) (struct target_ops *); | |
465 | int (*to_has_registers) (struct target_ops *); | |
466 | int (*to_has_execution) (struct target_ops *); | |
c5aa993b | 467 | int to_has_thread_control; /* control thread execution */ |
dc177b7a | 468 | int to_attach_no_wait; |
6426a772 JM |
469 | /* ASYNC target controls */ |
470 | int (*to_can_async_p) (void); | |
471 | int (*to_is_async_p) (void); | |
b84876c2 PA |
472 | void (*to_async) (void (*) (enum inferior_event_type, void *), void *); |
473 | int (*to_async_mask) (int); | |
9908b566 | 474 | int (*to_supports_non_stop) (void); |
6b04bdb7 | 475 | /* find_memory_regions support method for gcore */ |
2146d243 RM |
476 | int (*to_find_memory_regions) (int (*) (CORE_ADDR, |
477 | unsigned long, | |
478 | int, int, int, | |
479 | void *), | |
be4d1333 | 480 | void *); |
6b04bdb7 | 481 | /* make_corefile_notes support method for gcore */ |
be4d1333 | 482 | char * (*to_make_corefile_notes) (bfd *, int *); |
6b04bdb7 MS |
483 | /* get_bookmark support method for bookmarks */ |
484 | gdb_byte * (*to_get_bookmark) (char *, int); | |
485 | /* goto_bookmark support method for bookmarks */ | |
486 | void (*to_goto_bookmark) (gdb_byte *, int); | |
3f47be5c EZ |
487 | /* Return the thread-local address at OFFSET in the |
488 | thread-local storage for the thread PTID and the shared library | |
489 | or executable file given by OBJFILE. If that block of | |
490 | thread-local storage hasn't been allocated yet, this function | |
491 | may return an error. */ | |
117de6a9 PA |
492 | CORE_ADDR (*to_get_thread_local_address) (struct target_ops *ops, |
493 | ptid_t ptid, | |
b2756930 | 494 | CORE_ADDR load_module_addr, |
3f47be5c EZ |
495 | CORE_ADDR offset); |
496 | ||
13547ab6 DJ |
497 | /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
498 | OBJECT. The OFFSET, for a seekable object, specifies the | |
499 | starting point. The ANNEX can be used to provide additional | |
500 | data-specific information to the target. | |
501 | ||
502 | Return the number of bytes actually transfered, zero when no | |
503 | further transfer is possible, and -1 when the transfer is not | |
504 | supported. Return of a positive value smaller than LEN does | |
505 | not indicate the end of the object, only the end of the | |
506 | transfer; higher level code should continue transferring if | |
507 | desired. This is handled in target.c. | |
508 | ||
509 | The interface does not support a "retry" mechanism. Instead it | |
510 | assumes that at least one byte will be transfered on each | |
511 | successful call. | |
512 | ||
513 | NOTE: cagney/2003-10-17: The current interface can lead to | |
514 | fragmented transfers. Lower target levels should not implement | |
515 | hacks, such as enlarging the transfer, in an attempt to | |
516 | compensate for this. Instead, the target stack should be | |
517 | extended so that it implements supply/collect methods and a | |
518 | look-aside object cache. With that available, the lowest | |
519 | target can safely and freely "push" data up the stack. | |
520 | ||
521 | See target_read and target_write for more information. One, | |
522 | and only one, of readbuf or writebuf must be non-NULL. */ | |
523 | ||
4b8a223f | 524 | LONGEST (*to_xfer_partial) (struct target_ops *ops, |
8aa91c1e | 525 | enum target_object object, const char *annex, |
1b0ba102 | 526 | gdb_byte *readbuf, const gdb_byte *writebuf, |
8aa91c1e | 527 | ULONGEST offset, LONGEST len); |
1e3ff5ad | 528 | |
fd79ecee DJ |
529 | /* Returns the memory map for the target. A return value of NULL |
530 | means that no memory map is available. If a memory address | |
531 | does not fall within any returned regions, it's assumed to be | |
532 | RAM. The returned memory regions should not overlap. | |
533 | ||
534 | The order of regions does not matter; target_memory_map will | |
535 | sort regions by starting address. For that reason, this | |
536 | function should not be called directly except via | |
537 | target_memory_map. | |
538 | ||
539 | This method should not cache data; if the memory map could | |
540 | change unexpectedly, it should be invalidated, and higher | |
541 | layers will re-fetch it. */ | |
542 | VEC(mem_region_s) *(*to_memory_map) (struct target_ops *); | |
543 | ||
a76d924d DJ |
544 | /* Erases the region of flash memory starting at ADDRESS, of |
545 | length LENGTH. | |
546 | ||
547 | Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned | |
548 | on flash block boundaries, as reported by 'to_memory_map'. */ | |
549 | void (*to_flash_erase) (struct target_ops *, | |
550 | ULONGEST address, LONGEST length); | |
551 | ||
552 | /* Finishes a flash memory write sequence. After this operation | |
553 | all flash memory should be available for writing and the result | |
554 | of reading from areas written by 'to_flash_write' should be | |
555 | equal to what was written. */ | |
556 | void (*to_flash_done) (struct target_ops *); | |
557 | ||
424163ea DJ |
558 | /* Describe the architecture-specific features of this target. |
559 | Returns the description found, or NULL if no description | |
560 | was available. */ | |
561 | const struct target_desc *(*to_read_description) (struct target_ops *ops); | |
562 | ||
0ef643c8 JB |
563 | /* Build the PTID of the thread on which a given task is running, |
564 | based on LWP and THREAD. These values are extracted from the | |
565 | task Private_Data section of the Ada Task Control Block, and | |
566 | their interpretation depends on the target. */ | |
567 | ptid_t (*to_get_ada_task_ptid) (long lwp, long thread); | |
568 | ||
c47ffbe3 VP |
569 | /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
570 | Return 0 if *READPTR is already at the end of the buffer. | |
571 | Return -1 if there is insufficient buffer for a whole entry. | |
572 | Return 1 if an entry was read into *TYPEP and *VALP. */ | |
573 | int (*to_auxv_parse) (struct target_ops *ops, gdb_byte **readptr, | |
574 | gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp); | |
575 | ||
08388c79 DE |
576 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
577 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
578 | ||
579 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
580 | requiring halting of the search (e.g. memory read error). | |
581 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
582 | int (*to_search_memory) (struct target_ops *ops, | |
583 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
584 | const gdb_byte *pattern, ULONGEST pattern_len, | |
585 | CORE_ADDR *found_addrp); | |
586 | ||
b2175913 | 587 | /* Can target execute in reverse? */ |
2c0b251b | 588 | int (*to_can_execute_reverse) (void); |
b2175913 | 589 | |
8a305172 PA |
590 | /* Does this target support debugging multiple processes |
591 | simultaneously? */ | |
592 | int (*to_supports_multi_process) (void); | |
593 | ||
3a8f7b07 JK |
594 | /* Determine current architecture of thread PTID. |
595 | ||
596 | The target is supposed to determine the architecture of the code where | |
597 | the target is currently stopped at (on Cell, if a target is in spu_run, | |
598 | to_thread_architecture would return SPU, otherwise PPC32 or PPC64). | |
599 | This is architecture used to perform decr_pc_after_break adjustment, | |
600 | and also determines the frame architecture of the innermost frame. | |
601 | ptrace operations need to operate according to target_gdbarch. | |
602 | ||
603 | The default implementation always returns target_gdbarch. */ | |
c2250ad1 UW |
604 | struct gdbarch *(*to_thread_architecture) (struct target_ops *, ptid_t); |
605 | ||
c0694254 PA |
606 | /* Determine current address space of thread PTID. |
607 | ||
608 | The default implementation always returns the inferior's | |
609 | address space. */ | |
610 | struct address_space *(*to_thread_address_space) (struct target_ops *, | |
611 | ptid_t); | |
612 | ||
35b1e5cc SS |
613 | /* Tracepoint-related operations. */ |
614 | ||
615 | /* Prepare the target for a tracing run. */ | |
616 | void (*to_trace_init) (void); | |
617 | ||
618 | /* Send full details of a tracepoint to the target. */ | |
619 | void (*to_download_tracepoint) (struct breakpoint *t); | |
620 | ||
621 | /* Send full details of a trace state variable to the target. */ | |
622 | void (*to_download_trace_state_variable) (struct trace_state_variable *tsv); | |
623 | ||
624 | /* Inform the target info of memory regions that are readonly | |
625 | (such as text sections), and so it should return data from | |
626 | those rather than look in the trace buffer. */ | |
627 | void (*to_trace_set_readonly_regions) (void); | |
628 | ||
629 | /* Start a trace run. */ | |
630 | void (*to_trace_start) (void); | |
631 | ||
632 | /* Get the current status of a tracing run. */ | |
633 | int (*to_get_trace_status) (int *stop_reason); | |
634 | ||
635 | /* Stop a trace run. */ | |
636 | void (*to_trace_stop) (void); | |
637 | ||
638 | /* Ask the target to find a trace frame of the given type TYPE, | |
639 | using NUM, ADDR1, and ADDR2 as search parameters. Returns the | |
640 | number of the trace frame, and also the tracepoint number at | |
641 | TPP. */ | |
642 | int (*to_trace_find) (enum trace_find_type type, int num, | |
643 | ULONGEST addr1, ULONGEST addr2, int *tpp); | |
644 | ||
645 | /* Get the value of the trace state variable number TSV, returning | |
646 | 1 if the value is known and writing the value itself into the | |
647 | location pointed to by VAL, else returning 0. */ | |
648 | int (*to_get_trace_state_variable_value) (int tsv, LONGEST *val); | |
649 | ||
650 | /* Set the target's tracing behavior in response to unexpected | |
651 | disconnection - set VAL to 1 to keep tracing, 0 to stop. */ | |
652 | void (*to_set_disconnected_tracing) (int val); | |
653 | ||
c5aa993b | 654 | int to_magic; |
0d06e24b JM |
655 | /* Need sub-structure for target machine related rather than comm related? |
656 | */ | |
c5aa993b | 657 | }; |
c906108c SS |
658 | |
659 | /* Magic number for checking ops size. If a struct doesn't end with this | |
660 | number, somebody changed the declaration but didn't change all the | |
661 | places that initialize one. */ | |
662 | ||
663 | #define OPS_MAGIC 3840 | |
664 | ||
665 | /* The ops structure for our "current" target process. This should | |
666 | never be NULL. If there is no target, it points to the dummy_target. */ | |
667 | ||
c5aa993b | 668 | extern struct target_ops current_target; |
c906108c | 669 | |
c906108c SS |
670 | /* Define easy words for doing these operations on our current target. */ |
671 | ||
672 | #define target_shortname (current_target.to_shortname) | |
673 | #define target_longname (current_target.to_longname) | |
674 | ||
f1c07ab0 AC |
675 | /* Does whatever cleanup is required for a target that we are no |
676 | longer going to be calling. QUITTING indicates that GDB is exiting | |
677 | and should not get hung on an error (otherwise it is important to | |
678 | perform clean termination, even if it takes a while). This routine | |
679 | is automatically always called when popping the target off the | |
680 | target stack (to_beneath is undefined). Closing file descriptors | |
681 | and freeing all memory allocated memory are typical things it | |
682 | should do. */ | |
683 | ||
684 | void target_close (struct target_ops *targ, int quitting); | |
c906108c SS |
685 | |
686 | /* Attaches to a process on the target side. Arguments are as passed | |
687 | to the `attach' command by the user. This routine can be called | |
688 | when the target is not on the target-stack, if the target_can_run | |
2146d243 | 689 | routine returns 1; in that case, it must push itself onto the stack. |
c906108c | 690 | Upon exit, the target should be ready for normal operations, and |
2146d243 | 691 | should be ready to deliver the status of the process immediately |
c906108c SS |
692 | (without waiting) to an upcoming target_wait call. */ |
693 | ||
136d6dae | 694 | void target_attach (char *, int); |
c906108c | 695 | |
dc177b7a PA |
696 | /* Some targets don't generate traps when attaching to the inferior, |
697 | or their target_attach implementation takes care of the waiting. | |
698 | These targets must set to_attach_no_wait. */ | |
699 | ||
700 | #define target_attach_no_wait \ | |
701 | (current_target.to_attach_no_wait) | |
702 | ||
c906108c SS |
703 | /* The target_attach operation places a process under debugger control, |
704 | and stops the process. | |
705 | ||
706 | This operation provides a target-specific hook that allows the | |
0d06e24b | 707 | necessary bookkeeping to be performed after an attach completes. */ |
c906108c | 708 | #define target_post_attach(pid) \ |
0d06e24b | 709 | (*current_target.to_post_attach) (pid) |
c906108c | 710 | |
c906108c SS |
711 | /* Takes a program previously attached to and detaches it. |
712 | The program may resume execution (some targets do, some don't) and will | |
713 | no longer stop on signals, etc. We better not have left any breakpoints | |
714 | in the program or it'll die when it hits one. ARGS is arguments | |
715 | typed by the user (e.g. a signal to send the process). FROM_TTY | |
716 | says whether to be verbose or not. */ | |
717 | ||
a14ed312 | 718 | extern void target_detach (char *, int); |
c906108c | 719 | |
6ad8ae5c DJ |
720 | /* Disconnect from the current target without resuming it (leaving it |
721 | waiting for a debugger). */ | |
722 | ||
723 | extern void target_disconnect (char *, int); | |
724 | ||
39f77062 | 725 | /* Resume execution of the target process PTID. STEP says whether to |
c906108c SS |
726 | single-step or to run free; SIGGNAL is the signal to be given to |
727 | the target, or TARGET_SIGNAL_0 for no signal. The caller may not | |
728 | pass TARGET_SIGNAL_DEFAULT. */ | |
729 | ||
e1ac3328 | 730 | extern void target_resume (ptid_t ptid, int step, enum target_signal signal); |
c906108c | 731 | |
b5a2688f AC |
732 | /* Wait for process pid to do something. PTID = -1 to wait for any |
733 | pid to do something. Return pid of child, or -1 in case of error; | |
c906108c | 734 | store status through argument pointer STATUS. Note that it is |
b5a2688f | 735 | _NOT_ OK to throw_exception() out of target_wait() without popping |
c906108c SS |
736 | the debugging target from the stack; GDB isn't prepared to get back |
737 | to the prompt with a debugging target but without the frame cache, | |
47608cb1 PA |
738 | stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W* |
739 | options. */ | |
c906108c | 740 | |
47608cb1 PA |
741 | extern ptid_t target_wait (ptid_t ptid, struct target_waitstatus *status, |
742 | int options); | |
c906108c | 743 | |
17dee195 | 744 | /* Fetch at least register REGNO, or all regs if regno == -1. No result. */ |
c906108c | 745 | |
28439f5e | 746 | extern void target_fetch_registers (struct regcache *regcache, int regno); |
c906108c SS |
747 | |
748 | /* Store at least register REGNO, or all regs if REGNO == -1. | |
749 | It can store as many registers as it wants to, so target_prepare_to_store | |
750 | must have been previously called. Calls error() if there are problems. */ | |
751 | ||
28439f5e | 752 | extern void target_store_registers (struct regcache *regcache, int regs); |
c906108c SS |
753 | |
754 | /* Get ready to modify the registers array. On machines which store | |
755 | individual registers, this doesn't need to do anything. On machines | |
756 | which store all the registers in one fell swoop, this makes sure | |
757 | that REGISTERS contains all the registers from the program being | |
758 | debugged. */ | |
759 | ||
316f2060 UW |
760 | #define target_prepare_to_store(regcache) \ |
761 | (*current_target.to_prepare_to_store) (regcache) | |
c906108c | 762 | |
6c95b8df PA |
763 | /* Determine current address space of thread PTID. */ |
764 | ||
765 | struct address_space *target_thread_address_space (ptid_t); | |
766 | ||
8a305172 PA |
767 | /* Returns true if this target can debug multiple processes |
768 | simultaneously. */ | |
769 | ||
770 | #define target_supports_multi_process() \ | |
771 | (*current_target.to_supports_multi_process) () | |
772 | ||
4e5d721f DE |
773 | /* Invalidate all target dcaches. */ |
774 | extern void target_dcache_invalidate (void); | |
4930751a | 775 | |
a14ed312 | 776 | extern int target_read_string (CORE_ADDR, char **, int, int *); |
c906108c | 777 | |
fc1a4b47 | 778 | extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len); |
c906108c | 779 | |
4e5d721f DE |
780 | extern int target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, int len); |
781 | ||
fc1a4b47 | 782 | extern int target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, |
10e2d419 | 783 | int len); |
c906108c | 784 | |
fd79ecee DJ |
785 | /* Fetches the target's memory map. If one is found it is sorted |
786 | and returned, after some consistency checking. Otherwise, NULL | |
787 | is returned. */ | |
788 | VEC(mem_region_s) *target_memory_map (void); | |
789 | ||
a76d924d DJ |
790 | /* Erase the specified flash region. */ |
791 | void target_flash_erase (ULONGEST address, LONGEST length); | |
792 | ||
793 | /* Finish a sequence of flash operations. */ | |
794 | void target_flash_done (void); | |
795 | ||
796 | /* Describes a request for a memory write operation. */ | |
797 | struct memory_write_request | |
798 | { | |
799 | /* Begining address that must be written. */ | |
800 | ULONGEST begin; | |
801 | /* Past-the-end address. */ | |
802 | ULONGEST end; | |
803 | /* The data to write. */ | |
804 | gdb_byte *data; | |
805 | /* A callback baton for progress reporting for this request. */ | |
806 | void *baton; | |
807 | }; | |
808 | typedef struct memory_write_request memory_write_request_s; | |
809 | DEF_VEC_O(memory_write_request_s); | |
810 | ||
811 | /* Enumeration specifying different flash preservation behaviour. */ | |
812 | enum flash_preserve_mode | |
813 | { | |
814 | flash_preserve, | |
815 | flash_discard | |
816 | }; | |
817 | ||
818 | /* Write several memory blocks at once. This version can be more | |
819 | efficient than making several calls to target_write_memory, in | |
820 | particular because it can optimize accesses to flash memory. | |
821 | ||
822 | Moreover, this is currently the only memory access function in gdb | |
823 | that supports writing to flash memory, and it should be used for | |
824 | all cases where access to flash memory is desirable. | |
825 | ||
826 | REQUESTS is the vector (see vec.h) of memory_write_request. | |
827 | PRESERVE_FLASH_P indicates what to do with blocks which must be | |
828 | erased, but not completely rewritten. | |
829 | PROGRESS_CB is a function that will be periodically called to provide | |
830 | feedback to user. It will be called with the baton corresponding | |
831 | to the request currently being written. It may also be called | |
832 | with a NULL baton, when preserved flash sectors are being rewritten. | |
833 | ||
834 | The function returns 0 on success, and error otherwise. */ | |
835 | int target_write_memory_blocks (VEC(memory_write_request_s) *requests, | |
836 | enum flash_preserve_mode preserve_flash_p, | |
837 | void (*progress_cb) (ULONGEST, void *)); | |
838 | ||
47932f85 DJ |
839 | /* From infrun.c. */ |
840 | ||
3a3e9ee3 | 841 | extern int inferior_has_forked (ptid_t pid, ptid_t *child_pid); |
47932f85 | 842 | |
3a3e9ee3 | 843 | extern int inferior_has_vforked (ptid_t pid, ptid_t *child_pid); |
47932f85 | 844 | |
3a3e9ee3 | 845 | extern int inferior_has_execd (ptid_t pid, char **execd_pathname); |
47932f85 | 846 | |
a96d9b2e SDJ |
847 | extern int inferior_has_called_syscall (ptid_t pid, int *syscall_number); |
848 | ||
c906108c SS |
849 | /* Print a line about the current target. */ |
850 | ||
851 | #define target_files_info() \ | |
0d06e24b | 852 | (*current_target.to_files_info) (¤t_target) |
c906108c | 853 | |
8181d85f DJ |
854 | /* Insert a breakpoint at address BP_TGT->placed_address in the target |
855 | machine. Result is 0 for success, or an errno value. */ | |
c906108c | 856 | |
a6d9a66e UW |
857 | #define target_insert_breakpoint(gdbarch, bp_tgt) \ |
858 | (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt) | |
c906108c | 859 | |
8181d85f DJ |
860 | /* Remove a breakpoint at address BP_TGT->placed_address in the target |
861 | machine. Result is 0 for success, or an errno value. */ | |
c906108c | 862 | |
a6d9a66e UW |
863 | #define target_remove_breakpoint(gdbarch, bp_tgt) \ |
864 | (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt) | |
c906108c SS |
865 | |
866 | /* Initialize the terminal settings we record for the inferior, | |
867 | before we actually run the inferior. */ | |
868 | ||
869 | #define target_terminal_init() \ | |
0d06e24b | 870 | (*current_target.to_terminal_init) () |
c906108c SS |
871 | |
872 | /* Put the inferior's terminal settings into effect. | |
873 | This is preparation for starting or resuming the inferior. */ | |
874 | ||
d9d2d8b6 | 875 | extern void target_terminal_inferior (void); |
c906108c SS |
876 | |
877 | /* Put some of our terminal settings into effect, | |
878 | enough to get proper results from our output, | |
879 | but do not change into or out of RAW mode | |
880 | so that no input is discarded. | |
881 | ||
882 | After doing this, either terminal_ours or terminal_inferior | |
883 | should be called to get back to a normal state of affairs. */ | |
884 | ||
885 | #define target_terminal_ours_for_output() \ | |
0d06e24b | 886 | (*current_target.to_terminal_ours_for_output) () |
c906108c SS |
887 | |
888 | /* Put our terminal settings into effect. | |
889 | First record the inferior's terminal settings | |
890 | so they can be restored properly later. */ | |
891 | ||
892 | #define target_terminal_ours() \ | |
0d06e24b | 893 | (*current_target.to_terminal_ours) () |
c906108c | 894 | |
a790ad35 SC |
895 | /* Save our terminal settings. |
896 | This is called from TUI after entering or leaving the curses | |
897 | mode. Since curses modifies our terminal this call is here | |
898 | to take this change into account. */ | |
899 | ||
900 | #define target_terminal_save_ours() \ | |
901 | (*current_target.to_terminal_save_ours) () | |
902 | ||
c906108c SS |
903 | /* Print useful information about our terminal status, if such a thing |
904 | exists. */ | |
905 | ||
906 | #define target_terminal_info(arg, from_tty) \ | |
0d06e24b | 907 | (*current_target.to_terminal_info) (arg, from_tty) |
c906108c SS |
908 | |
909 | /* Kill the inferior process. Make it go away. */ | |
910 | ||
7d85a9c0 | 911 | extern void target_kill (void); |
c906108c | 912 | |
0d06e24b JM |
913 | /* Load an executable file into the target process. This is expected |
914 | to not only bring new code into the target process, but also to | |
1986bccd AS |
915 | update GDB's symbol tables to match. |
916 | ||
917 | ARG contains command-line arguments, to be broken down with | |
918 | buildargv (). The first non-switch argument is the filename to | |
919 | load, FILE; the second is a number (as parsed by strtoul (..., ..., | |
920 | 0)), which is an offset to apply to the load addresses of FILE's | |
921 | sections. The target may define switches, or other non-switch | |
922 | arguments, as it pleases. */ | |
c906108c | 923 | |
11cf8741 | 924 | extern void target_load (char *arg, int from_tty); |
c906108c SS |
925 | |
926 | /* Look up a symbol in the target's symbol table. NAME is the symbol | |
0d06e24b JM |
927 | name. ADDRP is a CORE_ADDR * pointing to where the value of the |
928 | symbol should be returned. The result is 0 if successful, nonzero | |
929 | if the symbol does not exist in the target environment. This | |
930 | function should not call error() if communication with the target | |
931 | is interrupted, since it is called from symbol reading, but should | |
932 | return nonzero, possibly doing a complain(). */ | |
c906108c | 933 | |
0d06e24b JM |
934 | #define target_lookup_symbol(name, addrp) \ |
935 | (*current_target.to_lookup_symbol) (name, addrp) | |
c906108c | 936 | |
39f77062 | 937 | /* Start an inferior process and set inferior_ptid to its pid. |
c906108c SS |
938 | EXEC_FILE is the file to run. |
939 | ALLARGS is a string containing the arguments to the program. | |
940 | ENV is the environment vector to pass. Errors reported with error(). | |
941 | On VxWorks and various standalone systems, we ignore exec_file. */ | |
c5aa993b | 942 | |
136d6dae VP |
943 | void target_create_inferior (char *exec_file, char *args, |
944 | char **env, int from_tty); | |
c906108c SS |
945 | |
946 | /* Some targets (such as ttrace-based HPUX) don't allow us to request | |
947 | notification of inferior events such as fork and vork immediately | |
948 | after the inferior is created. (This because of how gdb gets an | |
949 | inferior created via invoking a shell to do it. In such a scenario, | |
950 | if the shell init file has commands in it, the shell will fork and | |
951 | exec for each of those commands, and we will see each such fork | |
952 | event. Very bad.) | |
c5aa993b | 953 | |
0d06e24b JM |
954 | Such targets will supply an appropriate definition for this function. */ |
955 | ||
39f77062 KB |
956 | #define target_post_startup_inferior(ptid) \ |
957 | (*current_target.to_post_startup_inferior) (ptid) | |
c906108c SS |
958 | |
959 | /* On some targets, the sequence of starting up an inferior requires | |
0d06e24b JM |
960 | some synchronization between gdb and the new inferior process, PID. */ |
961 | ||
c906108c | 962 | #define target_acknowledge_created_inferior(pid) \ |
0d06e24b | 963 | (*current_target.to_acknowledge_created_inferior) (pid) |
c906108c | 964 | |
0d06e24b JM |
965 | /* On some targets, we can catch an inferior fork or vfork event when |
966 | it occurs. These functions insert/remove an already-created | |
967 | catchpoint for such events. */ | |
c906108c | 968 | |
c906108c | 969 | #define target_insert_fork_catchpoint(pid) \ |
0d06e24b | 970 | (*current_target.to_insert_fork_catchpoint) (pid) |
c906108c SS |
971 | |
972 | #define target_remove_fork_catchpoint(pid) \ | |
0d06e24b | 973 | (*current_target.to_remove_fork_catchpoint) (pid) |
c906108c SS |
974 | |
975 | #define target_insert_vfork_catchpoint(pid) \ | |
0d06e24b | 976 | (*current_target.to_insert_vfork_catchpoint) (pid) |
c906108c SS |
977 | |
978 | #define target_remove_vfork_catchpoint(pid) \ | |
0d06e24b | 979 | (*current_target.to_remove_vfork_catchpoint) (pid) |
c906108c | 980 | |
6604731b DJ |
981 | /* If the inferior forks or vforks, this function will be called at |
982 | the next resume in order to perform any bookkeeping and fiddling | |
983 | necessary to continue debugging either the parent or child, as | |
984 | requested, and releasing the other. Information about the fork | |
985 | or vfork event is available via get_last_target_status (). | |
986 | This function returns 1 if the inferior should not be resumed | |
987 | (i.e. there is another event pending). */ | |
0d06e24b | 988 | |
ee057212 | 989 | int target_follow_fork (int follow_child); |
c906108c SS |
990 | |
991 | /* On some targets, we can catch an inferior exec event when it | |
0d06e24b JM |
992 | occurs. These functions insert/remove an already-created |
993 | catchpoint for such events. */ | |
994 | ||
c906108c | 995 | #define target_insert_exec_catchpoint(pid) \ |
0d06e24b | 996 | (*current_target.to_insert_exec_catchpoint) (pid) |
c5aa993b | 997 | |
c906108c | 998 | #define target_remove_exec_catchpoint(pid) \ |
0d06e24b | 999 | (*current_target.to_remove_exec_catchpoint) (pid) |
c906108c | 1000 | |
a96d9b2e SDJ |
1001 | /* Syscall catch. |
1002 | ||
1003 | NEEDED is nonzero if any syscall catch (of any kind) is requested. | |
1004 | If NEEDED is zero, it means the target can disable the mechanism to | |
1005 | catch system calls because there are no more catchpoints of this type. | |
1006 | ||
1007 | ANY_COUNT is nonzero if a generic (filter-less) syscall catch is | |
1008 | being requested. In this case, both TABLE_SIZE and TABLE should | |
1009 | be ignored. | |
1010 | ||
1011 | TABLE_SIZE is the number of elements in TABLE. It only matters if | |
1012 | ANY_COUNT is zero. | |
1013 | ||
1014 | TABLE is an array of ints, indexed by syscall number. An element in | |
1015 | this array is nonzero if that syscall should be caught. This argument | |
1016 | only matters if ANY_COUNT is zero. */ | |
1017 | ||
1018 | #define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \ | |
1019 | (*current_target.to_set_syscall_catchpoint) (pid, needed, any_count, \ | |
1020 | table_size, table) | |
1021 | ||
c906108c | 1022 | /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the |
0d06e24b JM |
1023 | exit code of PID, if any. */ |
1024 | ||
c906108c | 1025 | #define target_has_exited(pid,wait_status,exit_status) \ |
0d06e24b | 1026 | (*current_target.to_has_exited) (pid,wait_status,exit_status) |
c906108c SS |
1027 | |
1028 | /* The debugger has completed a blocking wait() call. There is now | |
2146d243 | 1029 | some process event that must be processed. This function should |
c906108c | 1030 | be defined by those targets that require the debugger to perform |
0d06e24b | 1031 | cleanup or internal state changes in response to the process event. */ |
c906108c SS |
1032 | |
1033 | /* The inferior process has died. Do what is right. */ | |
1034 | ||
136d6dae | 1035 | void target_mourn_inferior (void); |
c906108c SS |
1036 | |
1037 | /* Does target have enough data to do a run or attach command? */ | |
1038 | ||
1039 | #define target_can_run(t) \ | |
0d06e24b | 1040 | ((t)->to_can_run) () |
c906108c SS |
1041 | |
1042 | /* post process changes to signal handling in the inferior. */ | |
1043 | ||
39f77062 KB |
1044 | #define target_notice_signals(ptid) \ |
1045 | (*current_target.to_notice_signals) (ptid) | |
c906108c SS |
1046 | |
1047 | /* Check to see if a thread is still alive. */ | |
1048 | ||
28439f5e | 1049 | extern int target_thread_alive (ptid_t ptid); |
c906108c | 1050 | |
b83266a0 SS |
1051 | /* Query for new threads and add them to the thread list. */ |
1052 | ||
28439f5e | 1053 | extern void target_find_new_threads (void); |
b83266a0 | 1054 | |
0d06e24b JM |
1055 | /* Make target stop in a continuable fashion. (For instance, under |
1056 | Unix, this should act like SIGSTOP). This function is normally | |
1057 | used by GUIs to implement a stop button. */ | |
c906108c | 1058 | |
94cc34af | 1059 | #define target_stop(ptid) (*current_target.to_stop) (ptid) |
c906108c | 1060 | |
96baa820 JM |
1061 | /* Send the specified COMMAND to the target's monitor |
1062 | (shell,interpreter) for execution. The result of the query is | |
0d06e24b | 1063 | placed in OUTBUF. */ |
96baa820 JM |
1064 | |
1065 | #define target_rcmd(command, outbuf) \ | |
1066 | (*current_target.to_rcmd) (command, outbuf) | |
1067 | ||
1068 | ||
c906108c SS |
1069 | /* Does the target include all of memory, or only part of it? This |
1070 | determines whether we look up the target chain for other parts of | |
1071 | memory if this target can't satisfy a request. */ | |
1072 | ||
c35b1492 PA |
1073 | extern int target_has_all_memory_1 (void); |
1074 | #define target_has_all_memory target_has_all_memory_1 () | |
c906108c SS |
1075 | |
1076 | /* Does the target include memory? (Dummy targets don't.) */ | |
1077 | ||
c35b1492 PA |
1078 | extern int target_has_memory_1 (void); |
1079 | #define target_has_memory target_has_memory_1 () | |
c906108c SS |
1080 | |
1081 | /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until | |
1082 | we start a process.) */ | |
c5aa993b | 1083 | |
c35b1492 PA |
1084 | extern int target_has_stack_1 (void); |
1085 | #define target_has_stack target_has_stack_1 () | |
c906108c SS |
1086 | |
1087 | /* Does the target have registers? (Exec files don't.) */ | |
1088 | ||
c35b1492 PA |
1089 | extern int target_has_registers_1 (void); |
1090 | #define target_has_registers target_has_registers_1 () | |
c906108c SS |
1091 | |
1092 | /* Does the target have execution? Can we make it jump (through | |
52bb452f DJ |
1093 | hoops), or pop its stack a few times? This means that the current |
1094 | target is currently executing; for some targets, that's the same as | |
1095 | whether or not the target is capable of execution, but there are | |
1096 | also targets which can be current while not executing. In that | |
1097 | case this will become true after target_create_inferior or | |
1098 | target_attach. */ | |
c906108c | 1099 | |
c35b1492 PA |
1100 | extern int target_has_execution_1 (void); |
1101 | #define target_has_execution target_has_execution_1 () | |
1102 | ||
1103 | /* Default implementations for process_stratum targets. Return true | |
1104 | if there's a selected inferior, false otherwise. */ | |
1105 | ||
1106 | extern int default_child_has_all_memory (struct target_ops *ops); | |
1107 | extern int default_child_has_memory (struct target_ops *ops); | |
1108 | extern int default_child_has_stack (struct target_ops *ops); | |
1109 | extern int default_child_has_registers (struct target_ops *ops); | |
1110 | extern int default_child_has_execution (struct target_ops *ops); | |
c906108c SS |
1111 | |
1112 | /* Can the target support the debugger control of thread execution? | |
d6350901 | 1113 | Can it lock the thread scheduler? */ |
c906108c SS |
1114 | |
1115 | #define target_can_lock_scheduler \ | |
0d06e24b | 1116 | (current_target.to_has_thread_control & tc_schedlock) |
c906108c | 1117 | |
c6ebd6cf VP |
1118 | /* Should the target enable async mode if it is supported? Temporary |
1119 | cludge until async mode is a strict superset of sync mode. */ | |
1120 | extern int target_async_permitted; | |
1121 | ||
6426a772 JM |
1122 | /* Can the target support asynchronous execution? */ |
1123 | #define target_can_async_p() (current_target.to_can_async_p ()) | |
1124 | ||
1125 | /* Is the target in asynchronous execution mode? */ | |
b84876c2 | 1126 | #define target_is_async_p() (current_target.to_is_async_p ()) |
6426a772 | 1127 | |
9908b566 VP |
1128 | int target_supports_non_stop (void); |
1129 | ||
6426a772 | 1130 | /* Put the target in async mode with the specified callback function. */ |
0d06e24b | 1131 | #define target_async(CALLBACK,CONTEXT) \ |
b84876c2 | 1132 | (current_target.to_async ((CALLBACK), (CONTEXT))) |
43ff13b4 | 1133 | |
04714b91 AC |
1134 | /* This is to be used ONLY within call_function_by_hand(). It provides |
1135 | a workaround, to have inferior function calls done in sychronous | |
1136 | mode, even though the target is asynchronous. After | |
ed9a39eb JM |
1137 | target_async_mask(0) is called, calls to target_can_async_p() will |
1138 | return FALSE , so that target_resume() will not try to start the | |
1139 | target asynchronously. After the inferior stops, we IMMEDIATELY | |
1140 | restore the previous nature of the target, by calling | |
1141 | target_async_mask(1). After that, target_can_async_p() will return | |
04714b91 | 1142 | TRUE. ANY OTHER USE OF THIS FEATURE IS DEPRECATED. |
ed9a39eb JM |
1143 | |
1144 | FIXME ezannoni 1999-12-13: we won't need this once we move | |
1145 | the turning async on and off to the single execution commands, | |
0d06e24b | 1146 | from where it is done currently, in remote_resume(). */ |
ed9a39eb | 1147 | |
b84876c2 PA |
1148 | #define target_async_mask(MASK) \ |
1149 | (current_target.to_async_mask (MASK)) | |
ed9a39eb | 1150 | |
c906108c SS |
1151 | /* Converts a process id to a string. Usually, the string just contains |
1152 | `process xyz', but on some systems it may contain | |
1153 | `process xyz thread abc'. */ | |
1154 | ||
117de6a9 | 1155 | extern char *target_pid_to_str (ptid_t ptid); |
c906108c | 1156 | |
39f77062 | 1157 | extern char *normal_pid_to_str (ptid_t ptid); |
c5aa993b | 1158 | |
0d06e24b JM |
1159 | /* Return a short string describing extra information about PID, |
1160 | e.g. "sleeping", "runnable", "running on LWP 3". Null return value | |
1161 | is okay. */ | |
1162 | ||
1163 | #define target_extra_thread_info(TP) \ | |
1164 | (current_target.to_extra_thread_info (TP)) | |
ed9a39eb | 1165 | |
c906108c SS |
1166 | /* Attempts to find the pathname of the executable file |
1167 | that was run to create a specified process. | |
1168 | ||
1169 | The process PID must be stopped when this operation is used. | |
c5aa993b | 1170 | |
c906108c SS |
1171 | If the executable file cannot be determined, NULL is returned. |
1172 | ||
1173 | Else, a pointer to a character string containing the pathname | |
1174 | is returned. This string should be copied into a buffer by | |
1175 | the client if the string will not be immediately used, or if | |
0d06e24b | 1176 | it must persist. */ |
c906108c SS |
1177 | |
1178 | #define target_pid_to_exec_file(pid) \ | |
0d06e24b | 1179 | (current_target.to_pid_to_exec_file) (pid) |
c906108c | 1180 | |
3a8f7b07 | 1181 | /* See the to_thread_architecture description in struct target_ops. */ |
c2250ad1 UW |
1182 | |
1183 | #define target_thread_architecture(ptid) \ | |
1184 | (current_target.to_thread_architecture (¤t_target, ptid)) | |
1185 | ||
be4d1333 MS |
1186 | /* |
1187 | * Iterator function for target memory regions. | |
1188 | * Calls a callback function once for each memory region 'mapped' | |
1189 | * in the child process. Defined as a simple macro rather than | |
2146d243 | 1190 | * as a function macro so that it can be tested for nullity. |
be4d1333 MS |
1191 | */ |
1192 | ||
1193 | #define target_find_memory_regions(FUNC, DATA) \ | |
1194 | (current_target.to_find_memory_regions) (FUNC, DATA) | |
1195 | ||
1196 | /* | |
1197 | * Compose corefile .note section. | |
1198 | */ | |
1199 | ||
1200 | #define target_make_corefile_notes(BFD, SIZE_P) \ | |
1201 | (current_target.to_make_corefile_notes) (BFD, SIZE_P) | |
1202 | ||
6b04bdb7 MS |
1203 | /* Bookmark interfaces. */ |
1204 | #define target_get_bookmark(ARGS, FROM_TTY) \ | |
1205 | (current_target.to_get_bookmark) (ARGS, FROM_TTY) | |
1206 | ||
1207 | #define target_goto_bookmark(ARG, FROM_TTY) \ | |
1208 | (current_target.to_goto_bookmark) (ARG, FROM_TTY) | |
1209 | ||
c906108c SS |
1210 | /* Hardware watchpoint interfaces. */ |
1211 | ||
1212 | /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or | |
7f82dfc7 | 1213 | write). Only the INFERIOR_PTID task is being queried. */ |
c906108c | 1214 | |
d92524f1 PM |
1215 | #define target_stopped_by_watchpoint \ |
1216 | (*current_target.to_stopped_by_watchpoint) | |
7df1a324 | 1217 | |
74174d2e UW |
1218 | /* Non-zero if we have steppable watchpoints */ |
1219 | ||
d92524f1 | 1220 | #define target_have_steppable_watchpoint \ |
74174d2e | 1221 | (current_target.to_have_steppable_watchpoint) |
74174d2e | 1222 | |
7df1a324 KW |
1223 | /* Non-zero if we have continuable watchpoints */ |
1224 | ||
d92524f1 | 1225 | #define target_have_continuable_watchpoint \ |
7df1a324 | 1226 | (current_target.to_have_continuable_watchpoint) |
c906108c | 1227 | |
ccaa32c7 | 1228 | /* Provide defaults for hardware watchpoint functions. */ |
c906108c | 1229 | |
2146d243 | 1230 | /* If the *_hw_beakpoint functions have not been defined |
ccaa32c7 | 1231 | elsewhere use the definitions in the target vector. */ |
c906108c SS |
1232 | |
1233 | /* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is | |
1234 | one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or | |
1235 | bp_hardware_breakpoint. CNT is the number of such watchpoints used so far | |
1236 | (including this one?). OTHERTYPE is who knows what... */ | |
1237 | ||
d92524f1 | 1238 | #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \ |
ccaa32c7 | 1239 | (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE); |
c906108c | 1240 | |
d92524f1 | 1241 | #define target_region_ok_for_hw_watchpoint(addr, len) \ |
e0d24f8d | 1242 | (*current_target.to_region_ok_for_hw_watchpoint) (addr, len) |
e0d24f8d | 1243 | |
c906108c SS |
1244 | |
1245 | /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes. TYPE is 0 | |
1246 | for write, 1 for read, and 2 for read/write accesses. Returns 0 for | |
1247 | success, non-zero for failure. */ | |
1248 | ||
ccaa32c7 GS |
1249 | #define target_insert_watchpoint(addr, len, type) \ |
1250 | (*current_target.to_insert_watchpoint) (addr, len, type) | |
c906108c | 1251 | |
ccaa32c7 GS |
1252 | #define target_remove_watchpoint(addr, len, type) \ |
1253 | (*current_target.to_remove_watchpoint) (addr, len, type) | |
c906108c | 1254 | |
a6d9a66e UW |
1255 | #define target_insert_hw_breakpoint(gdbarch, bp_tgt) \ |
1256 | (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt) | |
ccaa32c7 | 1257 | |
a6d9a66e UW |
1258 | #define target_remove_hw_breakpoint(gdbarch, bp_tgt) \ |
1259 | (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt) | |
c906108c | 1260 | |
7f82dfc7 JK |
1261 | /* Return non-zero if target knows the data address which triggered this |
1262 | target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the | |
1263 | INFERIOR_PTID task is being queried. */ | |
1264 | #define target_stopped_data_address(target, addr_p) \ | |
1265 | (*target.to_stopped_data_address) (target, addr_p) | |
c906108c | 1266 | |
5009afc5 AS |
1267 | #define target_watchpoint_addr_within_range(target, addr, start, length) \ |
1268 | (*target.to_watchpoint_addr_within_range) (target, addr, start, length) | |
1269 | ||
b2175913 MS |
1270 | /* Target can execute in reverse? */ |
1271 | #define target_can_execute_reverse \ | |
1272 | (current_target.to_can_execute_reverse ? \ | |
1273 | current_target.to_can_execute_reverse () : 0) | |
1274 | ||
424163ea DJ |
1275 | extern const struct target_desc *target_read_description (struct target_ops *); |
1276 | ||
0ef643c8 JB |
1277 | #define target_get_ada_task_ptid(lwp, tid) \ |
1278 | (*current_target.to_get_ada_task_ptid) (lwp,tid) | |
1279 | ||
08388c79 DE |
1280 | /* Utility implementation of searching memory. */ |
1281 | extern int simple_search_memory (struct target_ops* ops, | |
1282 | CORE_ADDR start_addr, | |
1283 | ULONGEST search_space_len, | |
1284 | const gdb_byte *pattern, | |
1285 | ULONGEST pattern_len, | |
1286 | CORE_ADDR *found_addrp); | |
1287 | ||
1288 | /* Main entry point for searching memory. */ | |
1289 | extern int target_search_memory (CORE_ADDR start_addr, | |
1290 | ULONGEST search_space_len, | |
1291 | const gdb_byte *pattern, | |
1292 | ULONGEST pattern_len, | |
1293 | CORE_ADDR *found_addrp); | |
1294 | ||
35b1e5cc SS |
1295 | /* Tracepoint-related operations. */ |
1296 | ||
1297 | #define target_trace_init() \ | |
1298 | (*current_target.to_trace_init) () | |
1299 | ||
1300 | #define target_download_tracepoint(t) \ | |
1301 | (*current_target.to_download_tracepoint) (t) | |
1302 | ||
1303 | #define target_download_trace_state_variable(tsv) \ | |
1304 | (*current_target.to_download_trace_state_variable) (tsv) | |
1305 | ||
1306 | #define target_trace_start() \ | |
1307 | (*current_target.to_trace_start) () | |
1308 | ||
1309 | #define target_trace_set_readonly_regions() \ | |
1310 | (*current_target.to_trace_set_readonly_regions) () | |
1311 | ||
1312 | #define target_get_trace_status(stop_reason) \ | |
1313 | (*current_target.to_get_trace_status) (stop_reason) | |
1314 | ||
1315 | #define target_trace_stop() \ | |
1316 | (*current_target.to_trace_stop) () | |
1317 | ||
1318 | #define target_trace_find(type,num,addr1,addr2,tpp) \ | |
1319 | (*current_target.to_trace_find) ((type), (num), (addr1), (addr2), (tpp)) | |
1320 | ||
1321 | #define target_get_trace_state_variable_value(tsv,val) \ | |
1322 | (*current_target.to_get_trace_state_variable_value) ((tsv), (val)) | |
1323 | ||
1324 | #define target_set_disconnected_tracing(val) \ | |
1325 | (*current_target.to_set_disconnected_tracing) (val) | |
1326 | ||
49d03eab MR |
1327 | /* Command logging facility. */ |
1328 | ||
1329 | #define target_log_command(p) \ | |
1330 | do \ | |
1331 | if (current_target.to_log_command) \ | |
1332 | (*current_target.to_log_command) (p); \ | |
1333 | while (0) | |
1334 | ||
c906108c SS |
1335 | /* Routines for maintenance of the target structures... |
1336 | ||
1337 | add_target: Add a target to the list of all possible targets. | |
1338 | ||
1339 | push_target: Make this target the top of the stack of currently used | |
c5aa993b JM |
1340 | targets, within its particular stratum of the stack. Result |
1341 | is 0 if now atop the stack, nonzero if not on top (maybe | |
1342 | should warn user). | |
c906108c SS |
1343 | |
1344 | unpush_target: Remove this from the stack of currently used targets, | |
c5aa993b JM |
1345 | no matter where it is on the list. Returns 0 if no |
1346 | change, 1 if removed from stack. | |
c906108c | 1347 | |
c5aa993b | 1348 | pop_target: Remove the top thing on the stack of current targets. */ |
c906108c | 1349 | |
a14ed312 | 1350 | extern void add_target (struct target_ops *); |
c906108c | 1351 | |
a14ed312 | 1352 | extern int push_target (struct target_ops *); |
c906108c | 1353 | |
a14ed312 | 1354 | extern int unpush_target (struct target_ops *); |
c906108c | 1355 | |
fd79ecee DJ |
1356 | extern void target_pre_inferior (int); |
1357 | ||
a14ed312 | 1358 | extern void target_preopen (int); |
c906108c | 1359 | |
a14ed312 | 1360 | extern void pop_target (void); |
c906108c | 1361 | |
aa76d38d PA |
1362 | /* Does whatever cleanup is required to get rid of all pushed targets. |
1363 | QUITTING is propagated to target_close; it indicates that GDB is | |
1364 | exiting and should not get hung on an error (otherwise it is | |
1365 | important to perform clean termination, even if it takes a | |
1366 | while). */ | |
1367 | extern void pop_all_targets (int quitting); | |
1368 | ||
87ab71f0 PA |
1369 | /* Like pop_all_targets, but pops only targets whose stratum is |
1370 | strictly above ABOVE_STRATUM. */ | |
1371 | extern void pop_all_targets_above (enum strata above_stratum, int quitting); | |
1372 | ||
9e35dae4 DJ |
1373 | extern CORE_ADDR target_translate_tls_address (struct objfile *objfile, |
1374 | CORE_ADDR offset); | |
1375 | ||
0542c86d | 1376 | /* Struct target_section maps address ranges to file sections. It is |
c906108c SS |
1377 | mostly used with BFD files, but can be used without (e.g. for handling |
1378 | raw disks, or files not in formats handled by BFD). */ | |
1379 | ||
0542c86d | 1380 | struct target_section |
c5aa993b JM |
1381 | { |
1382 | CORE_ADDR addr; /* Lowest address in section */ | |
1383 | CORE_ADDR endaddr; /* 1+highest address in section */ | |
c906108c | 1384 | |
7be0c536 | 1385 | struct bfd_section *the_bfd_section; |
c906108c | 1386 | |
c5aa993b JM |
1387 | bfd *bfd; /* BFD file pointer */ |
1388 | }; | |
c906108c | 1389 | |
07b82ea5 PA |
1390 | /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */ |
1391 | ||
1392 | struct target_section_table | |
1393 | { | |
1394 | struct target_section *sections; | |
1395 | struct target_section *sections_end; | |
1396 | }; | |
1397 | ||
8db32d44 | 1398 | /* Return the "section" containing the specified address. */ |
0542c86d PA |
1399 | struct target_section *target_section_by_addr (struct target_ops *target, |
1400 | CORE_ADDR addr); | |
8db32d44 | 1401 | |
07b82ea5 PA |
1402 | /* Return the target section table this target (or the targets |
1403 | beneath) currently manipulate. */ | |
1404 | ||
1405 | extern struct target_section_table *target_get_section_table | |
1406 | (struct target_ops *target); | |
1407 | ||
c906108c SS |
1408 | /* From mem-break.c */ |
1409 | ||
a6d9a66e | 1410 | extern int memory_remove_breakpoint (struct gdbarch *, struct bp_target_info *); |
c906108c | 1411 | |
a6d9a66e | 1412 | extern int memory_insert_breakpoint (struct gdbarch *, struct bp_target_info *); |
c906108c | 1413 | |
ae4b2284 | 1414 | extern int default_memory_remove_breakpoint (struct gdbarch *, struct bp_target_info *); |
917317f4 | 1415 | |
ae4b2284 | 1416 | extern int default_memory_insert_breakpoint (struct gdbarch *, struct bp_target_info *); |
917317f4 | 1417 | |
c906108c SS |
1418 | |
1419 | /* From target.c */ | |
1420 | ||
a14ed312 | 1421 | extern void initialize_targets (void); |
c906108c | 1422 | |
117de6a9 | 1423 | extern NORETURN void noprocess (void) ATTR_NORETURN; |
c906108c | 1424 | |
8edfe269 DJ |
1425 | extern void target_require_runnable (void); |
1426 | ||
136d6dae | 1427 | extern void find_default_attach (struct target_ops *, char *, int); |
c906108c | 1428 | |
136d6dae VP |
1429 | extern void find_default_create_inferior (struct target_ops *, |
1430 | char *, char *, char **, int); | |
c906108c | 1431 | |
a14ed312 | 1432 | extern struct target_ops *find_run_target (void); |
7a292a7a | 1433 | |
a14ed312 | 1434 | extern struct target_ops *find_core_target (void); |
6426a772 | 1435 | |
a14ed312 | 1436 | extern struct target_ops *find_target_beneath (struct target_ops *); |
ed9a39eb | 1437 | |
e0665bc8 PA |
1438 | /* Read OS data object of type TYPE from the target, and return it in |
1439 | XML format. The result is NUL-terminated and returned as a string, | |
1440 | allocated using xmalloc. If an error occurs or the transfer is | |
1441 | unsupported, NULL is returned. Empty objects are returned as | |
1442 | allocated but empty strings. */ | |
1443 | ||
07e059b5 VP |
1444 | extern char *target_get_osdata (const char *type); |
1445 | ||
c906108c SS |
1446 | \f |
1447 | /* Stuff that should be shared among the various remote targets. */ | |
1448 | ||
1449 | /* Debugging level. 0 is off, and non-zero values mean to print some debug | |
1450 | information (higher values, more information). */ | |
1451 | extern int remote_debug; | |
1452 | ||
1453 | /* Speed in bits per second, or -1 which means don't mess with the speed. */ | |
1454 | extern int baud_rate; | |
1455 | /* Timeout limit for response from target. */ | |
1456 | extern int remote_timeout; | |
1457 | ||
c906108c SS |
1458 | \f |
1459 | /* Functions for helping to write a native target. */ | |
1460 | ||
1461 | /* This is for native targets which use a unix/POSIX-style waitstatus. */ | |
a14ed312 | 1462 | extern void store_waitstatus (struct target_waitstatus *, int); |
c906108c | 1463 | |
2aecd87f | 1464 | /* These are in common/signals.c, but they're only used by gdb. */ |
1cded358 AR |
1465 | extern enum target_signal default_target_signal_from_host (struct gdbarch *, |
1466 | int); | |
1467 | extern int default_target_signal_to_host (struct gdbarch *, | |
1468 | enum target_signal); | |
1469 | ||
c906108c | 1470 | /* Convert from a number used in a GDB command to an enum target_signal. */ |
a14ed312 | 1471 | extern enum target_signal target_signal_from_command (int); |
2aecd87f | 1472 | /* End of files in common/signals.c. */ |
c906108c | 1473 | |
8defab1a DJ |
1474 | /* Set the show memory breakpoints mode to show, and installs a cleanup |
1475 | to restore it back to the current value. */ | |
1476 | extern struct cleanup *make_show_memory_breakpoints_cleanup (int show); | |
1477 | ||
c906108c SS |
1478 | \f |
1479 | /* Imported from machine dependent code */ | |
1480 | ||
c906108c | 1481 | /* Blank target vector entries are initialized to target_ignore. */ |
a14ed312 | 1482 | void target_ignore (void); |
c906108c | 1483 | |
1df84f13 | 1484 | extern struct target_ops deprecated_child_ops; |
5ac10fd1 | 1485 | |
c5aa993b | 1486 | #endif /* !defined (TARGET_H) */ |