Commit | Line | Data |
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c906108c SS |
1 | /* Variables that describe the inferior process running under GDB: |
2 | Where it is, why it stopped, and how to step it. | |
1bac305b | 3 | |
ecd75fc8 | 4 | Copyright (C) 1986-2014 Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 11 | (at your option) any later version. |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b | 18 | You should have received a copy of the GNU General Public License |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
20 | |
21 | #if !defined (INFERIOR_H) | |
22 | #define INFERIOR_H 1 | |
23 | ||
da3331ec AC |
24 | struct target_waitstatus; |
25 | struct frame_info; | |
26 | struct ui_file; | |
27 | struct type; | |
67a2b77e | 28 | struct gdbarch; |
72cec141 | 29 | struct regcache; |
b77209e0 | 30 | struct ui_out; |
7e1789f5 | 31 | struct terminal_info; |
6ecd4729 | 32 | struct target_desc_info; |
67a2b77e | 33 | |
d26e3629 KY |
34 | #include "ptid.h" |
35 | ||
c906108c SS |
36 | /* For bpstat. */ |
37 | #include "breakpoint.h" | |
38 | ||
2ea28649 | 39 | /* For enum gdb_signal. */ |
c906108c SS |
40 | #include "target.h" |
41 | ||
aa0cd9c1 AC |
42 | /* For struct frame_id. */ |
43 | #include "frame.h" | |
44 | ||
6c95b8df | 45 | #include "progspace.h" |
8e260fc0 | 46 | #include "registry.h" |
6c95b8df | 47 | |
16c381f0 JK |
48 | struct infcall_suspend_state; |
49 | struct infcall_control_state; | |
7a292a7a | 50 | |
16c381f0 JK |
51 | extern struct infcall_suspend_state *save_infcall_suspend_state (void); |
52 | extern struct infcall_control_state *save_infcall_control_state (void); | |
c906108c | 53 | |
16c381f0 JK |
54 | extern void restore_infcall_suspend_state (struct infcall_suspend_state *); |
55 | extern void restore_infcall_control_state (struct infcall_control_state *); | |
b89667eb | 56 | |
16c381f0 JK |
57 | extern struct cleanup *make_cleanup_restore_infcall_suspend_state |
58 | (struct infcall_suspend_state *); | |
59 | extern struct cleanup *make_cleanup_restore_infcall_control_state | |
60 | (struct infcall_control_state *); | |
b89667eb | 61 | |
16c381f0 JK |
62 | extern void discard_infcall_suspend_state (struct infcall_suspend_state *); |
63 | extern void discard_infcall_control_state (struct infcall_control_state *); | |
7a292a7a | 64 | |
16c381f0 JK |
65 | extern struct regcache * |
66 | get_infcall_suspend_state_regcache (struct infcall_suspend_state *); | |
b89667eb | 67 | |
ce696e05 KB |
68 | /* Save value of inferior_ptid so that it may be restored by |
69 | a later call to do_cleanups(). Returns the struct cleanup | |
70 | pointer needed for later doing the cleanup. */ | |
71 | extern struct cleanup * save_inferior_ptid (void); | |
72 | ||
a14ed312 | 73 | extern void set_sigint_trap (void); |
c906108c | 74 | |
a14ed312 | 75 | extern void clear_sigint_trap (void); |
c906108c | 76 | |
3cb3b8df | 77 | /* Set/get file name for default use for standard in/out in the inferior. */ |
c906108c | 78 | |
3cb3b8df BR |
79 | extern void set_inferior_io_terminal (const char *terminal_name); |
80 | extern const char *get_inferior_io_terminal (void); | |
c906108c | 81 | |
39f77062 | 82 | /* Collected pid, tid, etc. of the debugged inferior. When there's |
dfd4cc63 | 83 | no inferior, ptid_get_pid (inferior_ptid) will be 0. */ |
c906108c | 84 | |
39f77062 | 85 | extern ptid_t inferior_ptid; |
c906108c | 86 | |
a14ed312 | 87 | extern void generic_mourn_inferior (void); |
c906108c | 88 | |
9898f801 UW |
89 | extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch, |
90 | struct type *type, | |
b60c417a | 91 | const gdb_byte *buf); |
9898f801 UW |
92 | extern void unsigned_address_to_pointer (struct gdbarch *gdbarch, |
93 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 94 | CORE_ADDR addr); |
9898f801 UW |
95 | extern CORE_ADDR signed_pointer_to_address (struct gdbarch *gdbarch, |
96 | struct type *type, | |
b60c417a | 97 | const gdb_byte *buf); |
9898f801 UW |
98 | extern void address_to_signed_pointer (struct gdbarch *gdbarch, |
99 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 100 | CORE_ADDR addr); |
4478b372 | 101 | |
a14ed312 | 102 | extern void reopen_exec_file (void); |
c906108c | 103 | |
c906108c SS |
104 | /* From misc files */ |
105 | ||
0ab7a791 AC |
106 | extern void default_print_registers_info (struct gdbarch *gdbarch, |
107 | struct ui_file *file, | |
108 | struct frame_info *frame, | |
109 | int regnum, int all); | |
666e11c5 | 110 | |
0a4f40a2 | 111 | extern void child_terminal_info (struct target_ops *self, const char *, int); |
c906108c | 112 | |
a14ed312 | 113 | extern void term_info (char *, int); |
c906108c | 114 | |
d6b64346 PA |
115 | extern void child_terminal_save_ours (struct target_ops *self); |
116 | ||
117 | extern void child_terminal_ours (struct target_ops *self); | |
118 | ||
119 | extern void child_terminal_ours_for_output (struct target_ops *self); | |
c906108c | 120 | |
d6b64346 | 121 | extern void child_terminal_inferior (struct target_ops *self); |
c906108c | 122 | |
d6b64346 | 123 | extern void child_terminal_init (struct target_ops *self); |
c906108c | 124 | |
d6b64346 | 125 | extern void child_terminal_init_with_pgrp (int pgrp); |
c906108c | 126 | |
c906108c SS |
127 | /* From fork-child.c */ |
128 | ||
136d6dae VP |
129 | extern int fork_inferior (char *, char *, char **, |
130 | void (*)(void), | |
e69860f1 TG |
131 | void (*)(int), void (*)(void), char *, |
132 | void (*)(const char *, | |
133 | char * const *, char * const *)); | |
c906108c SS |
134 | |
135 | ||
a14ed312 | 136 | extern void startup_inferior (int); |
c906108c | 137 | |
bd57a748 | 138 | extern char *construct_inferior_arguments (int, char **); |
552c04a7 | 139 | |
c906108c SS |
140 | /* From infcmd.c */ |
141 | ||
281b533b DJ |
142 | extern void post_create_inferior (struct target_ops *, int); |
143 | ||
a14ed312 | 144 | extern void attach_command (char *, int); |
c906108c | 145 | |
a250df2e | 146 | extern char *get_inferior_args (void); |
07091751 | 147 | |
3f81c18a | 148 | extern void set_inferior_args (char *); |
07091751 | 149 | |
552c04a7 TT |
150 | extern void set_inferior_args_vector (int, char **); |
151 | ||
36dc181b EZ |
152 | extern void registers_info (char *, int); |
153 | ||
77ebaa5a VP |
154 | extern void continue_1 (int all_threads); |
155 | ||
77ebaa5a VP |
156 | extern void interrupt_target_1 (int all_threads); |
157 | ||
186c406b TT |
158 | extern void delete_longjmp_breakpoint_cleanup (void *arg); |
159 | ||
6418d433 VP |
160 | extern void detach_command (char *, int); |
161 | ||
1941c569 PA |
162 | extern void notice_new_inferior (ptid_t, int, int); |
163 | ||
6a3a010b | 164 | extern struct value *get_return_value (struct value *function, |
cc72b2a2 KP |
165 | struct type *value_type); |
166 | ||
329ea579 PA |
167 | /* Prepare for execution command. TARGET is the target that will run |
168 | the command. BACKGROUND determines whether this is a foreground | |
169 | (synchronous) or background (asynchronous) command. */ | |
170 | ||
171 | extern void prepare_execution_command (struct target_ops *target, | |
172 | int background); | |
173 | ||
98882a26 PA |
174 | /* Whether to start up the debuggee under a shell. |
175 | ||
176 | If startup-with-shell is set, GDB's "run" will attempt to start up | |
177 | the debuggee under a shell. | |
178 | ||
179 | This is in order for argument-expansion to occur. E.g., | |
180 | ||
181 | (gdb) run * | |
182 | ||
183 | The "*" gets expanded by the shell into a list of files. | |
184 | ||
185 | While this is a nice feature, it may be handy to bypass the shell | |
186 | in some cases. To disable this feature, do "set startup-with-shell | |
187 | false". | |
188 | ||
189 | The catch-exec traps expected during start-up will be one more if | |
190 | the target is started up with a shell. */ | |
191 | extern int startup_with_shell; | |
192 | ||
c906108c SS |
193 | /* Address at which inferior stopped. */ |
194 | ||
195 | extern CORE_ADDR stop_pc; | |
196 | ||
c906108c SS |
197 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
198 | ||
aa7d318d | 199 | extern enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
200 | |
201 | /* Nonzero if program stopped due to a random (unexpected) signal in | |
202 | inferior process. */ | |
203 | ||
204 | extern int stopped_by_random_signal; | |
205 | ||
a49f981f MS |
206 | /* STEP_OVER_ALL means step over all subroutine calls. |
207 | STEP_OVER_UNDEBUGGABLE means step over calls to undebuggable functions. | |
208 | STEP_OVER_NONE means don't step over any subroutine calls. */ | |
c906108c | 209 | |
5fbbeb29 CF |
210 | enum step_over_calls_kind |
211 | { | |
212 | STEP_OVER_NONE, | |
213 | STEP_OVER_ALL, | |
a4acd088 CF |
214 | STEP_OVER_UNDEBUGGABLE |
215 | }; | |
216 | ||
b0f4b84b DJ |
217 | /* Anything but NO_STOP_QUIETLY means we expect a trap and the caller |
218 | will handle it themselves. STOP_QUIETLY is used when running in | |
219 | the shell before the child program has been exec'd and when running | |
220 | through shared library loading. STOP_QUIETLY_REMOTE is used when | |
221 | setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP | |
222 | except that there is no need to hide a signal. */ | |
c54cfec8 | 223 | |
7c0bc051 DE |
224 | /* STOP_QUIETLY_NO_SIGSTOP is used to handle a tricky situation with attach. |
225 | When doing an attach, the kernel stops the debuggee with a SIGSTOP. | |
226 | On newer GNU/Linux kernels (>= 2.5.61) the handling of SIGSTOP for | |
227 | a ptraced process has changed. Earlier versions of the kernel | |
228 | would ignore these SIGSTOPs, while now SIGSTOP is treated like any | |
229 | other signal, i.e. it is not muffled. | |
230 | ||
c54cfec8 EZ |
231 | If the gdb user does a 'continue' after the 'attach', gdb passes |
232 | the global variable stop_signal (which stores the signal from the | |
233 | attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is | |
234 | problematic, because the kernel doesn't ignore such SIGSTOP | |
1777feb0 | 235 | now. I.e. it is reported back to gdb, which in turn presents it |
c54cfec8 | 236 | back to the user. |
7c0bc051 | 237 | |
c54cfec8 EZ |
238 | To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows |
239 | gdb to clear the value of stop_signal after the attach, so that it | |
240 | is not passed back down to the kernel. */ | |
241 | ||
242 | enum stop_kind | |
243 | { | |
244 | NO_STOP_QUIETLY = 0, | |
245 | STOP_QUIETLY, | |
b0f4b84b | 246 | STOP_QUIETLY_REMOTE, |
c54cfec8 EZ |
247 | STOP_QUIETLY_NO_SIGSTOP |
248 | }; | |
c906108c | 249 | |
c906108c | 250 | \f |
faaf634c | 251 | /* Possible values for gdbarch_call_dummy_location. */ |
c906108c | 252 | #define ON_STACK 1 |
c906108c SS |
253 | #define AT_ENTRY_POINT 4 |
254 | ||
98882a26 PA |
255 | /* Number of traps that happen between exec'ing the shell to run an |
256 | inferior and when we finally get to the inferior code, not counting | |
257 | the exec for the shell. This is 1 on most implementations. | |
258 | Overridden in nm.h files. */ | |
c906108c | 259 | #if !defined(START_INFERIOR_TRAPS_EXPECTED) |
98882a26 | 260 | #define START_INFERIOR_TRAPS_EXPECTED 1 |
c906108c | 261 | #endif |
b77209e0 PA |
262 | |
263 | struct private_inferior; | |
264 | ||
16c381f0 JK |
265 | /* Inferior process specific part of `struct infcall_control_state'. |
266 | ||
267 | Inferior thread counterpart is `struct thread_control_state'. */ | |
268 | ||
269 | struct inferior_control_state | |
270 | { | |
271 | /* See the definition of stop_kind above. */ | |
272 | enum stop_kind stop_soon; | |
273 | }; | |
274 | ||
275 | /* Inferior process specific part of `struct infcall_suspend_state'. | |
276 | ||
277 | Inferior thread counterpart is `struct thread_suspend_state'. */ | |
278 | ||
dd80ea3c | 279 | #if 0 /* Currently unused and empty structures are not valid C. */ |
16c381f0 JK |
280 | struct inferior_suspend_state |
281 | { | |
282 | }; | |
dd80ea3c | 283 | #endif |
16c381f0 | 284 | |
b77209e0 PA |
285 | /* GDB represents the state of each program execution with an object |
286 | called an inferior. An inferior typically corresponds to a process | |
287 | but is more general and applies also to targets that do not have a | |
288 | notion of processes. Each run of an executable creates a new | |
289 | inferior, as does each attachment to an existing process. | |
290 | Inferiors have unique internal identifiers that are different from | |
291 | target process ids. Each inferior may in turn have multiple | |
292 | threads running in it. */ | |
293 | ||
294 | struct inferior | |
295 | { | |
296 | /* Pointer to next inferior in singly-linked list of inferiors. */ | |
297 | struct inferior *next; | |
298 | ||
299 | /* Convenient handle (GDB inferior id). Unique across all | |
300 | inferiors. */ | |
301 | int num; | |
302 | ||
303 | /* Actual target inferior id, usually, a process id. This matches | |
304 | the ptid_t.pid member of threads of this inferior. */ | |
305 | int pid; | |
e714e1bf UW |
306 | /* True if the PID was actually faked by GDB. */ |
307 | int fake_pid_p; | |
b77209e0 | 308 | |
16c381f0 JK |
309 | /* State of GDB control of inferior process execution. |
310 | See `struct inferior_control_state'. */ | |
311 | struct inferior_control_state control; | |
312 | ||
313 | /* State of inferior process to restore after GDB is done with an inferior | |
314 | call. See `struct inferior_suspend_state'. */ | |
dd80ea3c | 315 | #if 0 /* Currently unused and empty structures are not valid C. */ |
16c381f0 | 316 | struct inferior_suspend_state suspend; |
dd80ea3c | 317 | #endif |
16c381f0 | 318 | |
6c95b8df PA |
319 | /* True if this was an auto-created inferior, e.g. created from |
320 | following a fork; false, if this inferior was manually added by | |
321 | the user, and we should not attempt to prune it | |
322 | automatically. */ | |
323 | int removable; | |
324 | ||
325 | /* The address space bound to this inferior. */ | |
326 | struct address_space *aspace; | |
327 | ||
328 | /* The program space bound to this inferior. */ | |
329 | struct program_space *pspace; | |
330 | ||
3f81c18a VP |
331 | /* The arguments string to use when running. */ |
332 | char *args; | |
333 | ||
334 | /* The size of elements in argv. */ | |
335 | int argc; | |
336 | ||
337 | /* The vector version of arguments. If ARGC is nonzero, | |
338 | then we must compute ARGS from this (via the target). | |
339 | This is always coming from main's argv and therefore | |
340 | should never be freed. */ | |
341 | char **argv; | |
342 | ||
343 | /* The name of terminal device to use for I/O. */ | |
344 | char *terminal; | |
345 | ||
346 | /* Environment to use for running inferior, | |
347 | in format described in environ.h. */ | |
348 | struct gdb_environ *environment; | |
349 | ||
181e7f93 PA |
350 | /* Nonzero if this child process was attached rather than |
351 | forked. */ | |
352 | int attach_flag; | |
353 | ||
6c95b8df PA |
354 | /* If this inferior is a vfork child, then this is the pointer to |
355 | its vfork parent, if GDB is still attached to it. */ | |
356 | struct inferior *vfork_parent; | |
357 | ||
358 | /* If this process is a vfork parent, this is the pointer to the | |
359 | child. Since a vfork parent is left frozen by the kernel until | |
360 | the child execs or exits, a process can only have one vfork child | |
361 | at a given time. */ | |
362 | struct inferior *vfork_child; | |
363 | ||
364 | /* True if this inferior should be detached when it's vfork sibling | |
365 | exits or execs. */ | |
366 | int pending_detach; | |
367 | ||
368 | /* True if this inferior is a vfork parent waiting for a vfork child | |
369 | not under our control to be done with the shared memory region, | |
370 | either by exiting or execing. */ | |
371 | int waiting_for_vfork_done; | |
372 | ||
24291992 PA |
373 | /* True if we're in the process of detaching from this inferior. */ |
374 | int detaching; | |
375 | ||
e0ba6746 PA |
376 | /* What is left to do for an execution command after any thread of |
377 | this inferior stops. For continuations associated with a | |
378 | specific thread, see `struct thread_info'. */ | |
379 | struct continuation *continuations; | |
380 | ||
b77209e0 PA |
381 | /* Private data used by the target vector implementation. */ |
382 | struct private_inferior *private; | |
a96d9b2e | 383 | |
8cf64490 TT |
384 | /* HAS_EXIT_CODE is true if the inferior exited with an exit code. |
385 | In this case, the EXIT_CODE field is also valid. */ | |
386 | int has_exit_code; | |
387 | LONGEST exit_code; | |
388 | ||
7dcd53a0 TT |
389 | /* Default flags to pass to the symbol reading functions. These are |
390 | used whenever a new objfile is created. The valid values come | |
391 | from enum symfile_add_flags. */ | |
392 | int symfile_flags; | |
393 | ||
6ecd4729 PA |
394 | /* Info about an inferior's target description (if it's fetched; the |
395 | user supplied description's filename, if any; etc.). */ | |
396 | struct target_desc_info *tdesc_info; | |
397 | ||
398 | /* The architecture associated with the inferior through the | |
399 | connection to the target. | |
400 | ||
401 | The architecture vector provides some information that is really | |
402 | a property of the inferior, accessed through a particular target: | |
403 | ptrace operations; the layout of certain RSP packets; the | |
404 | solib_ops vector; etc. To differentiate architecture accesses to | |
405 | per-inferior/target properties from | |
406 | per-thread/per-frame/per-objfile properties, accesses to | |
407 | per-inferior/target properties should be made through | |
408 | this gdbarch. */ | |
409 | struct gdbarch *gdbarch; | |
410 | ||
6c95b8df | 411 | /* Per inferior data-pointers required by other GDB modules. */ |
8e260fc0 | 412 | REGISTRY_FIELDS; |
b77209e0 PA |
413 | }; |
414 | ||
6c95b8df PA |
415 | /* Keep a registry of per-inferior data-pointers required by other GDB |
416 | modules. */ | |
417 | ||
8e260fc0 | 418 | DECLARE_REGISTRY (inferior); |
6c95b8df | 419 | |
b77209e0 PA |
420 | /* Create an empty inferior list, or empty the existing one. */ |
421 | extern void init_inferior_list (void); | |
422 | ||
423 | /* Add an inferior to the inferior list, print a message that a new | |
424 | inferior is found, and return the pointer to the new inferior. | |
425 | Caller may use this pointer to initialize the private inferior | |
426 | data. */ | |
427 | extern struct inferior *add_inferior (int pid); | |
428 | ||
429 | /* Same as add_inferior, but don't print new inferior notifications to | |
430 | the CLI. */ | |
431 | extern struct inferior *add_inferior_silent (int pid); | |
432 | ||
433 | /* Delete an existing inferior list entry, due to inferior exit. */ | |
434 | extern void delete_inferior (int pid); | |
435 | ||
a79b8f6e VP |
436 | extern void delete_inferior_1 (struct inferior *todel, int silent); |
437 | ||
b77209e0 PA |
438 | /* Same as delete_inferior, but don't print new inferior notifications |
439 | to the CLI. */ | |
440 | extern void delete_inferior_silent (int pid); | |
441 | ||
442 | /* Delete an existing inferior list entry, due to inferior detaching. */ | |
443 | extern void detach_inferior (int pid); | |
444 | ||
6c95b8df PA |
445 | extern void exit_inferior (int pid); |
446 | ||
447 | extern void exit_inferior_silent (int pid); | |
448 | ||
449 | extern void exit_inferior_num_silent (int num); | |
450 | ||
451 | extern void inferior_appeared (struct inferior *inf, int pid); | |
452 | ||
82f73884 PA |
453 | /* Get rid of all inferiors. */ |
454 | extern void discard_all_inferiors (void); | |
455 | ||
b77209e0 PA |
456 | /* Translate the integer inferior id (GDB's homegrown id, not the system's) |
457 | into a "pid" (which may be overloaded with extra inferior information). */ | |
458 | extern int gdb_inferior_id_to_pid (int); | |
459 | ||
460 | /* Translate a target 'pid' into the integer inferior id (GDB's | |
461 | homegrown id, not the system's). */ | |
462 | extern int pid_to_gdb_inferior_id (int pid); | |
463 | ||
464 | /* Boolean test for an already-known pid. */ | |
465 | extern int in_inferior_list (int pid); | |
466 | ||
467 | /* Boolean test for an already-known inferior id (GDB's homegrown id, | |
468 | not the system's). */ | |
2c0b251b | 469 | extern int valid_gdb_inferior_id (int num); |
b77209e0 | 470 | |
6c95b8df | 471 | /* Search function to lookup an inferior by target 'pid'. */ |
b77209e0 PA |
472 | extern struct inferior *find_inferior_pid (int pid); |
473 | ||
6c95b8df PA |
474 | /* Search function to lookup an inferior by GDB 'num'. */ |
475 | extern struct inferior *find_inferior_id (int num); | |
476 | ||
477 | /* Find an inferior bound to PSPACE. */ | |
478 | extern struct inferior * | |
479 | find_inferior_for_program_space (struct program_space *pspace); | |
480 | ||
b77209e0 PA |
481 | /* Inferior iterator function. |
482 | ||
483 | Calls a callback function once for each inferior, so long as the | |
484 | callback function returns false. If the callback function returns | |
485 | true, the iteration will end and the current inferior will be | |
486 | returned. This can be useful for implementing a search for a | |
487 | inferior with arbitrary attributes, or for applying some operation | |
488 | to every inferior. | |
489 | ||
490 | It is safe to delete the iterated inferior from the callback. */ | |
491 | extern struct inferior *iterate_over_inferiors (int (*) (struct inferior *, | |
492 | void *), | |
493 | void *); | |
494 | ||
b77209e0 PA |
495 | /* Returns true if the inferior list is not empty. */ |
496 | extern int have_inferiors (void); | |
497 | ||
c35b1492 PA |
498 | /* Returns true if there are any live inferiors in the inferior list |
499 | (not cores, not executables, real live processes). */ | |
500 | extern int have_live_inferiors (void); | |
501 | ||
b77209e0 PA |
502 | /* Return a pointer to the current inferior. It is an error to call |
503 | this if there is no current inferior. */ | |
504 | extern struct inferior *current_inferior (void); | |
505 | ||
6c95b8df PA |
506 | extern void set_current_inferior (struct inferior *); |
507 | ||
508 | extern struct cleanup *save_current_inferior (void); | |
509 | ||
c65b3e0d PA |
510 | /* Traverse all inferiors. */ |
511 | ||
512 | #define ALL_INFERIORS(I) \ | |
513 | for ((I) = inferior_list; (I); (I) = (I)->next) | |
514 | ||
6c95b8df PA |
515 | extern struct inferior *inferior_list; |
516 | ||
517 | /* Prune away automatically added inferiors that aren't required | |
518 | anymore. */ | |
519 | extern void prune_inferiors (void); | |
520 | ||
521 | extern int number_of_inferiors (void); | |
522 | ||
a79b8f6e VP |
523 | extern struct inferior *add_inferior_with_spaces (void); |
524 | ||
c906108c | 525 | #endif /* !defined (INFERIOR_H) */ |