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 | |
61baf725 | 4 | Copyright (C) 1986-2017 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; |
0550c955 PA |
33 | struct gdb_environ; |
34 | struct continuation; | |
67a2b77e | 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 | |
b15cc25c PA |
48 | #include "symfile-add-flags.h" |
49 | ||
16c381f0 JK |
50 | struct infcall_suspend_state; |
51 | struct infcall_control_state; | |
7a292a7a | 52 | |
16c381f0 JK |
53 | extern struct infcall_suspend_state *save_infcall_suspend_state (void); |
54 | extern struct infcall_control_state *save_infcall_control_state (void); | |
c906108c | 55 | |
16c381f0 JK |
56 | extern void restore_infcall_suspend_state (struct infcall_suspend_state *); |
57 | extern void restore_infcall_control_state (struct infcall_control_state *); | |
b89667eb | 58 | |
16c381f0 JK |
59 | extern struct cleanup *make_cleanup_restore_infcall_suspend_state |
60 | (struct infcall_suspend_state *); | |
61 | extern struct cleanup *make_cleanup_restore_infcall_control_state | |
62 | (struct infcall_control_state *); | |
b89667eb | 63 | |
16c381f0 JK |
64 | extern void discard_infcall_suspend_state (struct infcall_suspend_state *); |
65 | extern void discard_infcall_control_state (struct infcall_control_state *); | |
7a292a7a | 66 | |
16c381f0 JK |
67 | extern struct regcache * |
68 | get_infcall_suspend_state_regcache (struct infcall_suspend_state *); | |
b89667eb | 69 | |
ce696e05 KB |
70 | /* Save value of inferior_ptid so that it may be restored by |
71 | a later call to do_cleanups(). Returns the struct cleanup | |
72 | pointer needed for later doing the cleanup. */ | |
73 | extern struct cleanup * save_inferior_ptid (void); | |
74 | ||
a14ed312 | 75 | extern void set_sigint_trap (void); |
c906108c | 76 | |
a14ed312 | 77 | extern void clear_sigint_trap (void); |
c906108c | 78 | |
3cb3b8df | 79 | /* Set/get file name for default use for standard in/out in the inferior. */ |
c906108c | 80 | |
3cb3b8df BR |
81 | extern void set_inferior_io_terminal (const char *terminal_name); |
82 | extern const char *get_inferior_io_terminal (void); | |
c906108c | 83 | |
39f77062 | 84 | /* Collected pid, tid, etc. of the debugged inferior. When there's |
dfd4cc63 | 85 | no inferior, ptid_get_pid (inferior_ptid) will be 0. */ |
c906108c | 86 | |
39f77062 | 87 | extern ptid_t inferior_ptid; |
c906108c | 88 | |
a14ed312 | 89 | extern void generic_mourn_inferior (void); |
c906108c | 90 | |
9898f801 UW |
91 | extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch, |
92 | struct type *type, | |
b60c417a | 93 | const gdb_byte *buf); |
9898f801 UW |
94 | extern void unsigned_address_to_pointer (struct gdbarch *gdbarch, |
95 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 96 | CORE_ADDR addr); |
9898f801 UW |
97 | extern CORE_ADDR signed_pointer_to_address (struct gdbarch *gdbarch, |
98 | struct type *type, | |
b60c417a | 99 | const gdb_byte *buf); |
9898f801 UW |
100 | extern void address_to_signed_pointer (struct gdbarch *gdbarch, |
101 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 102 | CORE_ADDR addr); |
4478b372 | 103 | |
a14ed312 | 104 | extern void reopen_exec_file (void); |
c906108c | 105 | |
c906108c SS |
106 | /* From misc files */ |
107 | ||
0ab7a791 AC |
108 | extern void default_print_registers_info (struct gdbarch *gdbarch, |
109 | struct ui_file *file, | |
110 | struct frame_info *frame, | |
111 | int regnum, int all); | |
666e11c5 | 112 | |
cc86d1cb YQ |
113 | /* Default implementation of gdbarch_print_float_info. Print |
114 | the values of all floating point registers. */ | |
115 | ||
116 | extern void default_print_float_info (struct gdbarch *gdbarch, | |
117 | struct ui_file *file, | |
118 | struct frame_info *frame, | |
119 | const char *args); | |
120 | ||
0a4f40a2 | 121 | extern void child_terminal_info (struct target_ops *self, const char *, int); |
c906108c | 122 | |
a14ed312 | 123 | extern void term_info (char *, int); |
c906108c | 124 | |
d6b64346 PA |
125 | extern void child_terminal_ours (struct target_ops *self); |
126 | ||
127 | extern void child_terminal_ours_for_output (struct target_ops *self); | |
c906108c | 128 | |
d6b64346 | 129 | extern void child_terminal_inferior (struct target_ops *self); |
c906108c | 130 | |
d6b64346 | 131 | extern void child_terminal_init (struct target_ops *self); |
c906108c | 132 | |
d6b64346 | 133 | extern void child_terminal_init_with_pgrp (int pgrp); |
c906108c | 134 | |
c906108c SS |
135 | /* From fork-child.c */ |
136 | ||
0db8980c SDJ |
137 | /* Report an error that happened when starting to trace the inferior |
138 | (i.e., when the "traceme_fun" callback is called on fork_inferior) | |
139 | and bail out. This function does not return. */ | |
140 | ||
141 | extern void trace_start_error (const char *fmt, ...) | |
142 | ATTRIBUTE_NORETURN; | |
143 | ||
144 | /* Like "trace_start_error", but the error message is constructed by | |
145 | combining STRING with the system error message for errno. This | |
146 | function does not return. */ | |
147 | ||
148 | extern void trace_start_error_with_name (const char *string) | |
149 | ATTRIBUTE_NORETURN; | |
150 | ||
7c5ded6a | 151 | extern int fork_inferior (const char *, const std::string &, char **, |
136d6dae | 152 | void (*)(void), |
e69860f1 TG |
153 | void (*)(int), void (*)(void), char *, |
154 | void (*)(const char *, | |
155 | char * const *, char * const *)); | |
c906108c SS |
156 | |
157 | ||
a14ed312 | 158 | extern void startup_inferior (int); |
c906108c | 159 | |
bd57a748 | 160 | extern char *construct_inferior_arguments (int, char **); |
552c04a7 | 161 | |
c906108c SS |
162 | /* From infcmd.c */ |
163 | ||
6efcd9a8 PA |
164 | /* Initial inferior setup. Determines the exec file is not yet known, |
165 | takes any necessary post-attaching actions, fetches the target | |
166 | description and syncs the shared library list. */ | |
167 | ||
168 | extern void setup_inferior (int from_tty); | |
169 | ||
281b533b DJ |
170 | extern void post_create_inferior (struct target_ops *, int); |
171 | ||
a14ed312 | 172 | extern void attach_command (char *, int); |
c906108c | 173 | |
a250df2e | 174 | extern char *get_inferior_args (void); |
07091751 | 175 | |
3f81c18a | 176 | extern void set_inferior_args (char *); |
07091751 | 177 | |
552c04a7 TT |
178 | extern void set_inferior_args_vector (int, char **); |
179 | ||
36dc181b EZ |
180 | extern void registers_info (char *, int); |
181 | ||
77ebaa5a VP |
182 | extern void continue_1 (int all_threads); |
183 | ||
77ebaa5a VP |
184 | extern void interrupt_target_1 (int all_threads); |
185 | ||
186c406b TT |
186 | extern void delete_longjmp_breakpoint_cleanup (void *arg); |
187 | ||
6418d433 VP |
188 | extern void detach_command (char *, int); |
189 | ||
1941c569 PA |
190 | extern void notice_new_inferior (ptid_t, int, int); |
191 | ||
0700e23e PA |
192 | extern struct value *get_return_value (struct value *function, |
193 | struct type *value_type); | |
cc72b2a2 | 194 | |
329ea579 PA |
195 | /* Prepare for execution command. TARGET is the target that will run |
196 | the command. BACKGROUND determines whether this is a foreground | |
197 | (synchronous) or background (asynchronous) command. */ | |
198 | ||
199 | extern void prepare_execution_command (struct target_ops *target, | |
200 | int background); | |
201 | ||
98882a26 PA |
202 | /* Whether to start up the debuggee under a shell. |
203 | ||
204 | If startup-with-shell is set, GDB's "run" will attempt to start up | |
205 | the debuggee under a shell. | |
206 | ||
207 | This is in order for argument-expansion to occur. E.g., | |
208 | ||
209 | (gdb) run * | |
210 | ||
211 | The "*" gets expanded by the shell into a list of files. | |
212 | ||
213 | While this is a nice feature, it may be handy to bypass the shell | |
214 | in some cases. To disable this feature, do "set startup-with-shell | |
215 | false". | |
216 | ||
217 | The catch-exec traps expected during start-up will be one more if | |
218 | the target is started up with a shell. */ | |
219 | extern int startup_with_shell; | |
220 | ||
c906108c SS |
221 | /* Address at which inferior stopped. */ |
222 | ||
223 | extern CORE_ADDR stop_pc; | |
224 | ||
c906108c SS |
225 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
226 | ||
aa7d318d | 227 | extern enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
228 | |
229 | /* Nonzero if program stopped due to a random (unexpected) signal in | |
230 | inferior process. */ | |
231 | ||
232 | extern int stopped_by_random_signal; | |
233 | ||
a49f981f MS |
234 | /* STEP_OVER_ALL means step over all subroutine calls. |
235 | STEP_OVER_UNDEBUGGABLE means step over calls to undebuggable functions. | |
236 | STEP_OVER_NONE means don't step over any subroutine calls. */ | |
c906108c | 237 | |
5fbbeb29 CF |
238 | enum step_over_calls_kind |
239 | { | |
240 | STEP_OVER_NONE, | |
241 | STEP_OVER_ALL, | |
a4acd088 CF |
242 | STEP_OVER_UNDEBUGGABLE |
243 | }; | |
244 | ||
b0f4b84b DJ |
245 | /* Anything but NO_STOP_QUIETLY means we expect a trap and the caller |
246 | will handle it themselves. STOP_QUIETLY is used when running in | |
247 | the shell before the child program has been exec'd and when running | |
248 | through shared library loading. STOP_QUIETLY_REMOTE is used when | |
249 | setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP | |
250 | except that there is no need to hide a signal. */ | |
c54cfec8 | 251 | |
7c0bc051 DE |
252 | /* STOP_QUIETLY_NO_SIGSTOP is used to handle a tricky situation with attach. |
253 | When doing an attach, the kernel stops the debuggee with a SIGSTOP. | |
254 | On newer GNU/Linux kernels (>= 2.5.61) the handling of SIGSTOP for | |
255 | a ptraced process has changed. Earlier versions of the kernel | |
256 | would ignore these SIGSTOPs, while now SIGSTOP is treated like any | |
257 | other signal, i.e. it is not muffled. | |
258 | ||
c54cfec8 EZ |
259 | If the gdb user does a 'continue' after the 'attach', gdb passes |
260 | the global variable stop_signal (which stores the signal from the | |
261 | attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is | |
262 | problematic, because the kernel doesn't ignore such SIGSTOP | |
1777feb0 | 263 | now. I.e. it is reported back to gdb, which in turn presents it |
c54cfec8 | 264 | back to the user. |
7c0bc051 | 265 | |
c54cfec8 EZ |
266 | To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows |
267 | gdb to clear the value of stop_signal after the attach, so that it | |
268 | is not passed back down to the kernel. */ | |
269 | ||
270 | enum stop_kind | |
271 | { | |
272 | NO_STOP_QUIETLY = 0, | |
273 | STOP_QUIETLY, | |
b0f4b84b | 274 | STOP_QUIETLY_REMOTE, |
c54cfec8 EZ |
275 | STOP_QUIETLY_NO_SIGSTOP |
276 | }; | |
c906108c | 277 | |
c906108c | 278 | \f |
faaf634c | 279 | /* Possible values for gdbarch_call_dummy_location. */ |
c906108c | 280 | #define ON_STACK 1 |
c906108c SS |
281 | #define AT_ENTRY_POINT 4 |
282 | ||
98882a26 PA |
283 | /* Number of traps that happen between exec'ing the shell to run an |
284 | inferior and when we finally get to the inferior code, not counting | |
32a8097b PA |
285 | the exec for the shell. This is 1 on all supported |
286 | implementations. */ | |
98882a26 | 287 | #define START_INFERIOR_TRAPS_EXPECTED 1 |
b77209e0 PA |
288 | |
289 | struct private_inferior; | |
290 | ||
16c381f0 JK |
291 | /* Inferior process specific part of `struct infcall_control_state'. |
292 | ||
293 | Inferior thread counterpart is `struct thread_control_state'. */ | |
294 | ||
295 | struct inferior_control_state | |
296 | { | |
297 | /* See the definition of stop_kind above. */ | |
298 | enum stop_kind stop_soon; | |
299 | }; | |
300 | ||
b77209e0 PA |
301 | /* GDB represents the state of each program execution with an object |
302 | called an inferior. An inferior typically corresponds to a process | |
303 | but is more general and applies also to targets that do not have a | |
304 | notion of processes. Each run of an executable creates a new | |
305 | inferior, as does each attachment to an existing process. | |
306 | Inferiors have unique internal identifiers that are different from | |
307 | target process ids. Each inferior may in turn have multiple | |
308 | threads running in it. */ | |
309 | ||
0550c955 | 310 | class inferior |
b77209e0 | 311 | { |
0550c955 PA |
312 | public: |
313 | explicit inferior (int pid); | |
314 | ~inferior (); | |
315 | ||
b77209e0 | 316 | /* Pointer to next inferior in singly-linked list of inferiors. */ |
0550c955 | 317 | struct inferior *next = NULL; |
b77209e0 PA |
318 | |
319 | /* Convenient handle (GDB inferior id). Unique across all | |
320 | inferiors. */ | |
0550c955 | 321 | int num = 0; |
b77209e0 PA |
322 | |
323 | /* Actual target inferior id, usually, a process id. This matches | |
324 | the ptid_t.pid member of threads of this inferior. */ | |
0550c955 | 325 | int pid = 0; |
e714e1bf | 326 | /* True if the PID was actually faked by GDB. */ |
0550c955 | 327 | bool fake_pid_p = false; |
b77209e0 | 328 | |
5d5658a1 | 329 | /* The highest thread number this inferior ever had. */ |
0550c955 | 330 | int highest_thread_num = 0; |
5d5658a1 | 331 | |
16c381f0 JK |
332 | /* State of GDB control of inferior process execution. |
333 | See `struct inferior_control_state'. */ | |
0550c955 | 334 | inferior_control_state control {NO_STOP_QUIETLY}; |
16c381f0 | 335 | |
6c95b8df PA |
336 | /* True if this was an auto-created inferior, e.g. created from |
337 | following a fork; false, if this inferior was manually added by | |
338 | the user, and we should not attempt to prune it | |
339 | automatically. */ | |
0550c955 | 340 | bool removable = false; |
6c95b8df PA |
341 | |
342 | /* The address space bound to this inferior. */ | |
0550c955 | 343 | struct address_space *aspace = NULL; |
6c95b8df PA |
344 | |
345 | /* The program space bound to this inferior. */ | |
0550c955 | 346 | struct program_space *pspace = NULL; |
6c95b8df | 347 | |
3f81c18a | 348 | /* The arguments string to use when running. */ |
0550c955 | 349 | char *args = NULL; |
3f81c18a VP |
350 | |
351 | /* The size of elements in argv. */ | |
0550c955 | 352 | int argc = 0; |
3f81c18a VP |
353 | |
354 | /* The vector version of arguments. If ARGC is nonzero, | |
355 | then we must compute ARGS from this (via the target). | |
356 | This is always coming from main's argv and therefore | |
357 | should never be freed. */ | |
0550c955 | 358 | char **argv = NULL; |
3f81c18a VP |
359 | |
360 | /* The name of terminal device to use for I/O. */ | |
0550c955 | 361 | char *terminal = NULL; |
3f81c18a VP |
362 | |
363 | /* Environment to use for running inferior, | |
364 | in format described in environ.h. */ | |
0550c955 | 365 | gdb_environ *environment = NULL; |
3f81c18a | 366 | |
0550c955 PA |
367 | /* True if this child process was attached rather than forked. */ |
368 | bool attach_flag = false; | |
181e7f93 | 369 | |
6c95b8df PA |
370 | /* If this inferior is a vfork child, then this is the pointer to |
371 | its vfork parent, if GDB is still attached to it. */ | |
0550c955 | 372 | inferior *vfork_parent = NULL; |
6c95b8df PA |
373 | |
374 | /* If this process is a vfork parent, this is the pointer to the | |
375 | child. Since a vfork parent is left frozen by the kernel until | |
376 | the child execs or exits, a process can only have one vfork child | |
377 | at a given time. */ | |
0550c955 | 378 | inferior *vfork_child = NULL; |
6c95b8df PA |
379 | |
380 | /* True if this inferior should be detached when it's vfork sibling | |
381 | exits or execs. */ | |
0550c955 | 382 | bool pending_detach = false; |
6c95b8df PA |
383 | |
384 | /* True if this inferior is a vfork parent waiting for a vfork child | |
385 | not under our control to be done with the shared memory region, | |
386 | either by exiting or execing. */ | |
0550c955 | 387 | bool waiting_for_vfork_done = false; |
6c95b8df | 388 | |
24291992 | 389 | /* True if we're in the process of detaching from this inferior. */ |
0550c955 | 390 | int detaching = 0; |
24291992 | 391 | |
e0ba6746 PA |
392 | /* What is left to do for an execution command after any thread of |
393 | this inferior stops. For continuations associated with a | |
394 | specific thread, see `struct thread_info'. */ | |
0550c955 | 395 | continuation *continuations = NULL; |
e0ba6746 | 396 | |
6efcd9a8 PA |
397 | /* True if setup_inferior wasn't called for this inferior yet. |
398 | Until that is done, we must not access inferior memory or | |
399 | registers, as we haven't determined the target | |
400 | architecture/description. */ | |
0550c955 | 401 | bool needs_setup = false; |
6efcd9a8 | 402 | |
b77209e0 | 403 | /* Private data used by the target vector implementation. */ |
0550c955 | 404 | private_inferior *priv = NULL; |
a96d9b2e | 405 | |
8cf64490 TT |
406 | /* HAS_EXIT_CODE is true if the inferior exited with an exit code. |
407 | In this case, the EXIT_CODE field is also valid. */ | |
0550c955 PA |
408 | bool has_exit_code = false; |
409 | LONGEST exit_code = 0; | |
8cf64490 | 410 | |
7dcd53a0 | 411 | /* Default flags to pass to the symbol reading functions. These are |
b15cc25c | 412 | used whenever a new objfile is created. */ |
0550c955 | 413 | symfile_add_flags symfile_flags = 0; |
7dcd53a0 | 414 | |
6ecd4729 PA |
415 | /* Info about an inferior's target description (if it's fetched; the |
416 | user supplied description's filename, if any; etc.). */ | |
0550c955 | 417 | target_desc_info *tdesc_info = NULL; |
6ecd4729 PA |
418 | |
419 | /* The architecture associated with the inferior through the | |
420 | connection to the target. | |
421 | ||
422 | The architecture vector provides some information that is really | |
423 | a property of the inferior, accessed through a particular target: | |
424 | ptrace operations; the layout of certain RSP packets; the | |
425 | solib_ops vector; etc. To differentiate architecture accesses to | |
426 | per-inferior/target properties from | |
427 | per-thread/per-frame/per-objfile properties, accesses to | |
428 | per-inferior/target properties should be made through | |
429 | this gdbarch. */ | |
0550c955 | 430 | struct gdbarch *gdbarch = NULL; |
6ecd4729 | 431 | |
6c95b8df | 432 | /* Per inferior data-pointers required by other GDB modules. */ |
8e260fc0 | 433 | REGISTRY_FIELDS; |
b77209e0 PA |
434 | }; |
435 | ||
6c95b8df PA |
436 | /* Keep a registry of per-inferior data-pointers required by other GDB |
437 | modules. */ | |
438 | ||
8e260fc0 | 439 | DECLARE_REGISTRY (inferior); |
6c95b8df | 440 | |
b77209e0 PA |
441 | /* Add an inferior to the inferior list, print a message that a new |
442 | inferior is found, and return the pointer to the new inferior. | |
443 | Caller may use this pointer to initialize the private inferior | |
444 | data. */ | |
445 | extern struct inferior *add_inferior (int pid); | |
446 | ||
447 | /* Same as add_inferior, but don't print new inferior notifications to | |
448 | the CLI. */ | |
449 | extern struct inferior *add_inferior_silent (int pid); | |
450 | ||
7a41607e | 451 | extern void delete_inferior (struct inferior *todel); |
b77209e0 PA |
452 | |
453 | /* Delete an existing inferior list entry, due to inferior detaching. */ | |
454 | extern void detach_inferior (int pid); | |
455 | ||
6c95b8df PA |
456 | extern void exit_inferior (int pid); |
457 | ||
458 | extern void exit_inferior_silent (int pid); | |
459 | ||
460 | extern void exit_inferior_num_silent (int num); | |
461 | ||
462 | extern void inferior_appeared (struct inferior *inf, int pid); | |
463 | ||
82f73884 PA |
464 | /* Get rid of all inferiors. */ |
465 | extern void discard_all_inferiors (void); | |
466 | ||
b77209e0 PA |
467 | /* Translate the integer inferior id (GDB's homegrown id, not the system's) |
468 | into a "pid" (which may be overloaded with extra inferior information). */ | |
469 | extern int gdb_inferior_id_to_pid (int); | |
470 | ||
471 | /* Translate a target 'pid' into the integer inferior id (GDB's | |
472 | homegrown id, not the system's). */ | |
473 | extern int pid_to_gdb_inferior_id (int pid); | |
474 | ||
475 | /* Boolean test for an already-known pid. */ | |
476 | extern int in_inferior_list (int pid); | |
477 | ||
478 | /* Boolean test for an already-known inferior id (GDB's homegrown id, | |
479 | not the system's). */ | |
2c0b251b | 480 | extern int valid_gdb_inferior_id (int num); |
b77209e0 | 481 | |
6c95b8df | 482 | /* Search function to lookup an inferior by target 'pid'. */ |
b77209e0 PA |
483 | extern struct inferior *find_inferior_pid (int pid); |
484 | ||
c9657e70 SM |
485 | /* Search function to lookup an inferior whose pid is equal to 'ptid.pid'. */ |
486 | extern struct inferior *find_inferior_ptid (ptid_t ptid); | |
487 | ||
6c95b8df PA |
488 | /* Search function to lookup an inferior by GDB 'num'. */ |
489 | extern struct inferior *find_inferior_id (int num); | |
490 | ||
32990ada PA |
491 | /* Find an inferior bound to PSPACE, giving preference to the current |
492 | inferior. */ | |
6c95b8df PA |
493 | extern struct inferior * |
494 | find_inferior_for_program_space (struct program_space *pspace); | |
495 | ||
b77209e0 PA |
496 | /* Inferior iterator function. |
497 | ||
498 | Calls a callback function once for each inferior, so long as the | |
499 | callback function returns false. If the callback function returns | |
500 | true, the iteration will end and the current inferior will be | |
501 | returned. This can be useful for implementing a search for a | |
502 | inferior with arbitrary attributes, or for applying some operation | |
503 | to every inferior. | |
504 | ||
505 | It is safe to delete the iterated inferior from the callback. */ | |
506 | extern struct inferior *iterate_over_inferiors (int (*) (struct inferior *, | |
507 | void *), | |
508 | void *); | |
509 | ||
b77209e0 PA |
510 | /* Returns true if the inferior list is not empty. */ |
511 | extern int have_inferiors (void); | |
512 | ||
8020350c DB |
513 | /* Returns the number of live inferiors (real live processes). */ |
514 | extern int number_of_live_inferiors (void); | |
515 | ||
c35b1492 PA |
516 | /* Returns true if there are any live inferiors in the inferior list |
517 | (not cores, not executables, real live processes). */ | |
518 | extern int have_live_inferiors (void); | |
519 | ||
b77209e0 PA |
520 | /* Return a pointer to the current inferior. It is an error to call |
521 | this if there is no current inferior. */ | |
522 | extern struct inferior *current_inferior (void); | |
523 | ||
6c95b8df PA |
524 | extern void set_current_inferior (struct inferior *); |
525 | ||
526 | extern struct cleanup *save_current_inferior (void); | |
527 | ||
c65b3e0d PA |
528 | /* Traverse all inferiors. */ |
529 | ||
530 | #define ALL_INFERIORS(I) \ | |
531 | for ((I) = inferior_list; (I); (I) = (I)->next) | |
532 | ||
85ad3aaf PA |
533 | /* Traverse all non-exited inferiors. */ |
534 | ||
535 | #define ALL_NON_EXITED_INFERIORS(I) \ | |
536 | ALL_INFERIORS (I) \ | |
537 | if ((I)->pid != 0) | |
538 | ||
6c95b8df PA |
539 | extern struct inferior *inferior_list; |
540 | ||
541 | /* Prune away automatically added inferiors that aren't required | |
542 | anymore. */ | |
543 | extern void prune_inferiors (void); | |
544 | ||
545 | extern int number_of_inferiors (void); | |
546 | ||
a79b8f6e VP |
547 | extern struct inferior *add_inferior_with_spaces (void); |
548 | ||
4034d0ff AT |
549 | /* Print the current selected inferior. */ |
550 | extern void print_selected_inferior (struct ui_out *uiout); | |
551 | ||
c906108c | 552 | #endif /* !defined (INFERIOR_H) */ |