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 | |
e2882c85 | 4 | Copyright (C) 1986-2018 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 | 33 | struct continuation; |
3a3fd0fd | 34 | struct inferior; |
00431a78 | 35 | struct thread_info; |
67a2b77e | 36 | |
c906108c SS |
37 | /* For bpstat. */ |
38 | #include "breakpoint.h" | |
39 | ||
2ea28649 | 40 | /* For enum gdb_signal. */ |
c906108c SS |
41 | #include "target.h" |
42 | ||
aa0cd9c1 AC |
43 | /* For struct frame_id. */ |
44 | #include "frame.h" | |
45 | ||
9a6c7d9c SDJ |
46 | /* For gdb_environ. */ |
47 | #include "environ.h" | |
48 | ||
6c95b8df | 49 | #include "progspace.h" |
8e260fc0 | 50 | #include "registry.h" |
6c95b8df | 51 | |
b15cc25c | 52 | #include "symfile-add-flags.h" |
3a3fd0fd | 53 | #include "common/refcounted-object.h" |
b15cc25c | 54 | |
2090129c SDJ |
55 | #include "common-inferior.h" |
56 | ||
16c381f0 JK |
57 | struct infcall_suspend_state; |
58 | struct infcall_control_state; | |
7a292a7a | 59 | |
16c381f0 JK |
60 | extern struct infcall_suspend_state *save_infcall_suspend_state (void); |
61 | extern struct infcall_control_state *save_infcall_control_state (void); | |
c906108c | 62 | |
16c381f0 JK |
63 | extern void restore_infcall_suspend_state (struct infcall_suspend_state *); |
64 | extern void restore_infcall_control_state (struct infcall_control_state *); | |
b89667eb | 65 | |
16c381f0 JK |
66 | extern struct cleanup *make_cleanup_restore_infcall_suspend_state |
67 | (struct infcall_suspend_state *); | |
68 | extern struct cleanup *make_cleanup_restore_infcall_control_state | |
69 | (struct infcall_control_state *); | |
b89667eb | 70 | |
16c381f0 JK |
71 | extern void discard_infcall_suspend_state (struct infcall_suspend_state *); |
72 | extern void discard_infcall_control_state (struct infcall_control_state *); | |
7a292a7a | 73 | |
daf6667d | 74 | extern readonly_detached_regcache * |
16c381f0 | 75 | get_infcall_suspend_state_regcache (struct infcall_suspend_state *); |
b89667eb | 76 | |
a14ed312 | 77 | extern void set_sigint_trap (void); |
c906108c | 78 | |
a14ed312 | 79 | extern void clear_sigint_trap (void); |
c906108c | 80 | |
3cb3b8df | 81 | /* Set/get file name for default use for standard in/out in the inferior. */ |
c906108c | 82 | |
3cb3b8df BR |
83 | extern void set_inferior_io_terminal (const char *terminal_name); |
84 | extern const char *get_inferior_io_terminal (void); | |
c906108c | 85 | |
39f77062 | 86 | /* Collected pid, tid, etc. of the debugged inferior. When there's |
e99b03dc | 87 | no inferior, inferior_ptid.pid () will be 0. */ |
c906108c | 88 | |
39f77062 | 89 | extern ptid_t inferior_ptid; |
c906108c | 90 | |
a14ed312 | 91 | extern void generic_mourn_inferior (void); |
c906108c | 92 | |
9898f801 UW |
93 | extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch, |
94 | struct type *type, | |
b60c417a | 95 | const gdb_byte *buf); |
9898f801 UW |
96 | extern void unsigned_address_to_pointer (struct gdbarch *gdbarch, |
97 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 98 | CORE_ADDR addr); |
9898f801 UW |
99 | extern CORE_ADDR signed_pointer_to_address (struct gdbarch *gdbarch, |
100 | struct type *type, | |
b60c417a | 101 | const gdb_byte *buf); |
9898f801 UW |
102 | extern void address_to_signed_pointer (struct gdbarch *gdbarch, |
103 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 104 | CORE_ADDR addr); |
4478b372 | 105 | |
a14ed312 | 106 | extern void reopen_exec_file (void); |
c906108c | 107 | |
c906108c SS |
108 | /* From misc files */ |
109 | ||
0ab7a791 AC |
110 | extern void default_print_registers_info (struct gdbarch *gdbarch, |
111 | struct ui_file *file, | |
112 | struct frame_info *frame, | |
113 | int regnum, int all); | |
666e11c5 | 114 | |
cc86d1cb YQ |
115 | /* Default implementation of gdbarch_print_float_info. Print |
116 | the values of all floating point registers. */ | |
117 | ||
118 | extern void default_print_float_info (struct gdbarch *gdbarch, | |
119 | struct ui_file *file, | |
120 | struct frame_info *frame, | |
121 | const char *args); | |
122 | ||
0a4f40a2 | 123 | extern void child_terminal_info (struct target_ops *self, const char *, int); |
c906108c | 124 | |
11db9430 | 125 | extern void info_terminal_command (char *, int); |
c906108c | 126 | |
d6b64346 PA |
127 | extern void child_terminal_ours (struct target_ops *self); |
128 | ||
129 | extern void child_terminal_ours_for_output (struct target_ops *self); | |
c906108c | 130 | |
d6b64346 | 131 | extern void child_terminal_inferior (struct target_ops *self); |
c906108c | 132 | |
e671cd59 PA |
133 | extern void child_terminal_save_inferior (struct target_ops *self); |
134 | ||
d6b64346 | 135 | extern void child_terminal_init (struct target_ops *self); |
c906108c | 136 | |
d6b64346 | 137 | extern void child_terminal_init_with_pgrp (int pgrp); |
c906108c | 138 | |
e671cd59 PA |
139 | extern void child_pass_ctrlc (struct target_ops *self); |
140 | ||
141 | extern void child_interrupt (struct target_ops *self); | |
142 | ||
c906108c SS |
143 | /* From fork-child.c */ |
144 | ||
2090129c SDJ |
145 | /* Helper function to call STARTUP_INFERIOR with PID and NUM_TRAPS. |
146 | This function already calls set_executing. Return the ptid_t from | |
147 | STARTUP_INFERIOR. */ | |
148 | extern ptid_t gdb_startup_inferior (pid_t pid, int num_traps); | |
c906108c | 149 | |
bd57a748 | 150 | extern char *construct_inferior_arguments (int, char **); |
552c04a7 | 151 | |
c906108c SS |
152 | /* From infcmd.c */ |
153 | ||
6efcd9a8 PA |
154 | /* Initial inferior setup. Determines the exec file is not yet known, |
155 | takes any necessary post-attaching actions, fetches the target | |
156 | description and syncs the shared library list. */ | |
157 | ||
158 | extern void setup_inferior (int from_tty); | |
159 | ||
281b533b DJ |
160 | extern void post_create_inferior (struct target_ops *, int); |
161 | ||
0b39b52e | 162 | extern void attach_command (const char *, int); |
c906108c | 163 | |
a250df2e | 164 | extern char *get_inferior_args (void); |
07091751 | 165 | |
0b39b52e | 166 | extern void set_inferior_args (const char *); |
07091751 | 167 | |
552c04a7 TT |
168 | extern void set_inferior_args_vector (int, char **); |
169 | ||
1d12d88f | 170 | extern void registers_info (const char *, int); |
36dc181b | 171 | |
77ebaa5a VP |
172 | extern void continue_1 (int all_threads); |
173 | ||
77ebaa5a VP |
174 | extern void interrupt_target_1 (int all_threads); |
175 | ||
186c406b TT |
176 | extern void delete_longjmp_breakpoint_cleanup (void *arg); |
177 | ||
981a3fb3 | 178 | extern void detach_command (const char *, int); |
6418d433 | 179 | |
75cbc781 | 180 | extern void notice_new_inferior (struct thread_info *, int, int); |
1941c569 | 181 | |
0700e23e PA |
182 | extern struct value *get_return_value (struct value *function, |
183 | struct type *value_type); | |
cc72b2a2 | 184 | |
329ea579 PA |
185 | /* Prepare for execution command. TARGET is the target that will run |
186 | the command. BACKGROUND determines whether this is a foreground | |
187 | (synchronous) or background (asynchronous) command. */ | |
188 | ||
189 | extern void prepare_execution_command (struct target_ops *target, | |
190 | int background); | |
191 | ||
98882a26 PA |
192 | /* Whether to start up the debuggee under a shell. |
193 | ||
194 | If startup-with-shell is set, GDB's "run" will attempt to start up | |
195 | the debuggee under a shell. | |
196 | ||
197 | This is in order for argument-expansion to occur. E.g., | |
198 | ||
199 | (gdb) run * | |
200 | ||
201 | The "*" gets expanded by the shell into a list of files. | |
202 | ||
203 | While this is a nice feature, it may be handy to bypass the shell | |
204 | in some cases. To disable this feature, do "set startup-with-shell | |
205 | false". | |
206 | ||
207 | The catch-exec traps expected during start-up will be one more if | |
208 | the target is started up with a shell. */ | |
209 | extern int startup_with_shell; | |
210 | ||
c906108c SS |
211 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
212 | ||
aa7d318d | 213 | extern enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
214 | |
215 | /* Nonzero if program stopped due to a random (unexpected) signal in | |
216 | inferior process. */ | |
217 | ||
218 | extern int stopped_by_random_signal; | |
219 | ||
f67c0c91 SDJ |
220 | /* Print notices on inferior events (attach, detach, etc.), set with |
221 | `set print inferior-events'. */ | |
222 | extern int print_inferior_events; | |
223 | ||
a49f981f MS |
224 | /* STEP_OVER_ALL means step over all subroutine calls. |
225 | STEP_OVER_UNDEBUGGABLE means step over calls to undebuggable functions. | |
226 | STEP_OVER_NONE means don't step over any subroutine calls. */ | |
c906108c | 227 | |
5fbbeb29 CF |
228 | enum step_over_calls_kind |
229 | { | |
230 | STEP_OVER_NONE, | |
231 | STEP_OVER_ALL, | |
a4acd088 CF |
232 | STEP_OVER_UNDEBUGGABLE |
233 | }; | |
234 | ||
b0f4b84b DJ |
235 | /* Anything but NO_STOP_QUIETLY means we expect a trap and the caller |
236 | will handle it themselves. STOP_QUIETLY is used when running in | |
237 | the shell before the child program has been exec'd and when running | |
238 | through shared library loading. STOP_QUIETLY_REMOTE is used when | |
239 | setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP | |
240 | except that there is no need to hide a signal. */ | |
c54cfec8 | 241 | |
7c0bc051 DE |
242 | /* STOP_QUIETLY_NO_SIGSTOP is used to handle a tricky situation with attach. |
243 | When doing an attach, the kernel stops the debuggee with a SIGSTOP. | |
244 | On newer GNU/Linux kernels (>= 2.5.61) the handling of SIGSTOP for | |
245 | a ptraced process has changed. Earlier versions of the kernel | |
246 | would ignore these SIGSTOPs, while now SIGSTOP is treated like any | |
247 | other signal, i.e. it is not muffled. | |
248 | ||
c54cfec8 EZ |
249 | If the gdb user does a 'continue' after the 'attach', gdb passes |
250 | the global variable stop_signal (which stores the signal from the | |
251 | attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is | |
252 | problematic, because the kernel doesn't ignore such SIGSTOP | |
1777feb0 | 253 | now. I.e. it is reported back to gdb, which in turn presents it |
c54cfec8 | 254 | back to the user. |
7c0bc051 | 255 | |
c54cfec8 EZ |
256 | To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows |
257 | gdb to clear the value of stop_signal after the attach, so that it | |
258 | is not passed back down to the kernel. */ | |
259 | ||
260 | enum stop_kind | |
261 | { | |
262 | NO_STOP_QUIETLY = 0, | |
263 | STOP_QUIETLY, | |
b0f4b84b | 264 | STOP_QUIETLY_REMOTE, |
c54cfec8 EZ |
265 | STOP_QUIETLY_NO_SIGSTOP |
266 | }; | |
c906108c | 267 | |
c906108c | 268 | \f |
faaf634c | 269 | /* Possible values for gdbarch_call_dummy_location. */ |
c906108c | 270 | #define ON_STACK 1 |
c906108c SS |
271 | #define AT_ENTRY_POINT 4 |
272 | ||
089354bb SM |
273 | /* Base class for target-specific inferior data. */ |
274 | ||
275 | struct private_inferior | |
276 | { | |
277 | virtual ~private_inferior () = 0; | |
278 | }; | |
b77209e0 | 279 | |
16c381f0 JK |
280 | /* Inferior process specific part of `struct infcall_control_state'. |
281 | ||
282 | Inferior thread counterpart is `struct thread_control_state'. */ | |
283 | ||
284 | struct inferior_control_state | |
285 | { | |
286 | /* See the definition of stop_kind above. */ | |
287 | enum stop_kind stop_soon; | |
288 | }; | |
289 | ||
3a3fd0fd PA |
290 | /* Return a pointer to the current inferior. */ |
291 | extern inferior *current_inferior (); | |
292 | ||
293 | extern void set_current_inferior (inferior *); | |
294 | ||
b77209e0 PA |
295 | /* GDB represents the state of each program execution with an object |
296 | called an inferior. An inferior typically corresponds to a process | |
297 | but is more general and applies also to targets that do not have a | |
298 | notion of processes. Each run of an executable creates a new | |
299 | inferior, as does each attachment to an existing process. | |
300 | Inferiors have unique internal identifiers that are different from | |
301 | target process ids. Each inferior may in turn have multiple | |
3a3fd0fd PA |
302 | threads running in it. |
303 | ||
304 | Inferiors are intrusively refcounted objects. Unlike thread | |
305 | objects, being the user-selected inferior is considered a strong | |
306 | reference and is thus accounted for in the inferior object's | |
307 | refcount (see set_current_inferior). When GDB needs to remember | |
308 | the selected inferior to later restore it, GDB temporarily bumps | |
309 | the inferior object's refcount, to prevent something deleting the | |
310 | inferior object before reverting back (e.g., due to a | |
311 | "remove-inferiors" command (see | |
312 | make_cleanup_restore_current_thread). All other inferior | |
313 | references are considered weak references. Inferiors are always | |
314 | listed exactly once in the inferior list, so placing an inferior in | |
315 | the inferior list is an implicit, not counted strong reference. */ | |
316 | ||
317 | class inferior : public refcounted_object | |
b77209e0 | 318 | { |
0550c955 PA |
319 | public: |
320 | explicit inferior (int pid); | |
321 | ~inferior (); | |
322 | ||
3a3fd0fd PA |
323 | /* Returns true if we can delete this inferior. */ |
324 | bool deletable () const { return refcount () == 0; } | |
325 | ||
b77209e0 | 326 | /* Pointer to next inferior in singly-linked list of inferiors. */ |
0550c955 | 327 | struct inferior *next = NULL; |
b77209e0 PA |
328 | |
329 | /* Convenient handle (GDB inferior id). Unique across all | |
330 | inferiors. */ | |
0550c955 | 331 | int num = 0; |
b77209e0 PA |
332 | |
333 | /* Actual target inferior id, usually, a process id. This matches | |
334 | the ptid_t.pid member of threads of this inferior. */ | |
0550c955 | 335 | int pid = 0; |
e714e1bf | 336 | /* True if the PID was actually faked by GDB. */ |
0550c955 | 337 | bool fake_pid_p = false; |
b77209e0 | 338 | |
5d5658a1 | 339 | /* The highest thread number this inferior ever had. */ |
0550c955 | 340 | int highest_thread_num = 0; |
5d5658a1 | 341 | |
16c381f0 JK |
342 | /* State of GDB control of inferior process execution. |
343 | See `struct inferior_control_state'. */ | |
0550c955 | 344 | inferior_control_state control {NO_STOP_QUIETLY}; |
16c381f0 | 345 | |
6c95b8df PA |
346 | /* True if this was an auto-created inferior, e.g. created from |
347 | following a fork; false, if this inferior was manually added by | |
348 | the user, and we should not attempt to prune it | |
349 | automatically. */ | |
0550c955 | 350 | bool removable = false; |
6c95b8df PA |
351 | |
352 | /* The address space bound to this inferior. */ | |
0550c955 | 353 | struct address_space *aspace = NULL; |
6c95b8df PA |
354 | |
355 | /* The program space bound to this inferior. */ | |
0550c955 | 356 | struct program_space *pspace = NULL; |
6c95b8df | 357 | |
3f81c18a | 358 | /* The arguments string to use when running. */ |
0550c955 | 359 | char *args = NULL; |
3f81c18a VP |
360 | |
361 | /* The size of elements in argv. */ | |
0550c955 | 362 | int argc = 0; |
3f81c18a VP |
363 | |
364 | /* The vector version of arguments. If ARGC is nonzero, | |
365 | then we must compute ARGS from this (via the target). | |
366 | This is always coming from main's argv and therefore | |
367 | should never be freed. */ | |
0550c955 | 368 | char **argv = NULL; |
3f81c18a | 369 | |
d092c5a2 SDJ |
370 | /* The current working directory that will be used when starting |
371 | this inferior. */ | |
372 | gdb::unique_xmalloc_ptr<char> cwd; | |
373 | ||
3f81c18a | 374 | /* The name of terminal device to use for I/O. */ |
0550c955 | 375 | char *terminal = NULL; |
3f81c18a | 376 | |
e671cd59 PA |
377 | /* The terminal state as set by the last target_terminal::terminal_* |
378 | call. */ | |
379 | target_terminal_state terminal_state = target_terminal_state::is_ours; | |
380 | ||
3f81c18a VP |
381 | /* Environment to use for running inferior, |
382 | in format described in environ.h. */ | |
9a6c7d9c | 383 | gdb_environ environment; |
3f81c18a | 384 | |
0550c955 PA |
385 | /* True if this child process was attached rather than forked. */ |
386 | bool attach_flag = false; | |
181e7f93 | 387 | |
6c95b8df PA |
388 | /* If this inferior is a vfork child, then this is the pointer to |
389 | its vfork parent, if GDB is still attached to it. */ | |
0550c955 | 390 | inferior *vfork_parent = NULL; |
6c95b8df PA |
391 | |
392 | /* If this process is a vfork parent, this is the pointer to the | |
393 | child. Since a vfork parent is left frozen by the kernel until | |
394 | the child execs or exits, a process can only have one vfork child | |
395 | at a given time. */ | |
0550c955 | 396 | inferior *vfork_child = NULL; |
6c95b8df PA |
397 | |
398 | /* True if this inferior should be detached when it's vfork sibling | |
399 | exits or execs. */ | |
0550c955 | 400 | bool pending_detach = false; |
6c95b8df PA |
401 | |
402 | /* True if this inferior is a vfork parent waiting for a vfork child | |
403 | not under our control to be done with the shared memory region, | |
404 | either by exiting or execing. */ | |
0550c955 | 405 | bool waiting_for_vfork_done = false; |
6c95b8df | 406 | |
24291992 | 407 | /* True if we're in the process of detaching from this inferior. */ |
9bcb1f16 | 408 | bool detaching = false; |
24291992 | 409 | |
e0ba6746 PA |
410 | /* What is left to do for an execution command after any thread of |
411 | this inferior stops. For continuations associated with a | |
412 | specific thread, see `struct thread_info'. */ | |
0550c955 | 413 | continuation *continuations = NULL; |
e0ba6746 | 414 | |
6efcd9a8 PA |
415 | /* True if setup_inferior wasn't called for this inferior yet. |
416 | Until that is done, we must not access inferior memory or | |
417 | registers, as we haven't determined the target | |
418 | architecture/description. */ | |
0550c955 | 419 | bool needs_setup = false; |
6efcd9a8 | 420 | |
b77209e0 | 421 | /* Private data used by the target vector implementation. */ |
089354bb | 422 | std::unique_ptr<private_inferior> priv; |
a96d9b2e | 423 | |
8cf64490 TT |
424 | /* HAS_EXIT_CODE is true if the inferior exited with an exit code. |
425 | In this case, the EXIT_CODE field is also valid. */ | |
0550c955 PA |
426 | bool has_exit_code = false; |
427 | LONGEST exit_code = 0; | |
8cf64490 | 428 | |
7dcd53a0 | 429 | /* Default flags to pass to the symbol reading functions. These are |
b15cc25c | 430 | used whenever a new objfile is created. */ |
0550c955 | 431 | symfile_add_flags symfile_flags = 0; |
7dcd53a0 | 432 | |
6ecd4729 PA |
433 | /* Info about an inferior's target description (if it's fetched; the |
434 | user supplied description's filename, if any; etc.). */ | |
0550c955 | 435 | target_desc_info *tdesc_info = NULL; |
6ecd4729 PA |
436 | |
437 | /* The architecture associated with the inferior through the | |
438 | connection to the target. | |
439 | ||
440 | The architecture vector provides some information that is really | |
441 | a property of the inferior, accessed through a particular target: | |
442 | ptrace operations; the layout of certain RSP packets; the | |
443 | solib_ops vector; etc. To differentiate architecture accesses to | |
444 | per-inferior/target properties from | |
445 | per-thread/per-frame/per-objfile properties, accesses to | |
446 | per-inferior/target properties should be made through | |
447 | this gdbarch. */ | |
0550c955 | 448 | struct gdbarch *gdbarch = NULL; |
6ecd4729 | 449 | |
6c95b8df | 450 | /* Per inferior data-pointers required by other GDB modules. */ |
8e260fc0 | 451 | REGISTRY_FIELDS; |
b77209e0 PA |
452 | }; |
453 | ||
6c95b8df PA |
454 | /* Keep a registry of per-inferior data-pointers required by other GDB |
455 | modules. */ | |
456 | ||
8e260fc0 | 457 | DECLARE_REGISTRY (inferior); |
6c95b8df | 458 | |
b77209e0 PA |
459 | /* Add an inferior to the inferior list, print a message that a new |
460 | inferior is found, and return the pointer to the new inferior. | |
461 | Caller may use this pointer to initialize the private inferior | |
462 | data. */ | |
463 | extern struct inferior *add_inferior (int pid); | |
464 | ||
465 | /* Same as add_inferior, but don't print new inferior notifications to | |
466 | the CLI. */ | |
467 | extern struct inferior *add_inferior_silent (int pid); | |
468 | ||
7a41607e | 469 | extern void delete_inferior (struct inferior *todel); |
b77209e0 PA |
470 | |
471 | /* Delete an existing inferior list entry, due to inferior detaching. */ | |
bc09b0c1 SM |
472 | extern void detach_inferior (inferior *inf); |
473 | ||
00431a78 | 474 | extern void exit_inferior (inferior *inf); |
b77209e0 | 475 | |
00431a78 | 476 | extern void exit_inferior_silent (inferior *inf); |
6c95b8df PA |
477 | |
478 | extern void exit_inferior_num_silent (int num); | |
479 | ||
480 | extern void inferior_appeared (struct inferior *inf, int pid); | |
481 | ||
82f73884 PA |
482 | /* Get rid of all inferiors. */ |
483 | extern void discard_all_inferiors (void); | |
484 | ||
6c95b8df | 485 | /* Search function to lookup an inferior by target 'pid'. */ |
b77209e0 PA |
486 | extern struct inferior *find_inferior_pid (int pid); |
487 | ||
c9657e70 SM |
488 | /* Search function to lookup an inferior whose pid is equal to 'ptid.pid'. */ |
489 | extern struct inferior *find_inferior_ptid (ptid_t ptid); | |
490 | ||
6c95b8df PA |
491 | /* Search function to lookup an inferior by GDB 'num'. */ |
492 | extern struct inferior *find_inferior_id (int num); | |
493 | ||
32990ada PA |
494 | /* Find an inferior bound to PSPACE, giving preference to the current |
495 | inferior. */ | |
6c95b8df PA |
496 | extern struct inferior * |
497 | find_inferior_for_program_space (struct program_space *pspace); | |
498 | ||
b77209e0 PA |
499 | /* Inferior iterator function. |
500 | ||
501 | Calls a callback function once for each inferior, so long as the | |
502 | callback function returns false. If the callback function returns | |
503 | true, the iteration will end and the current inferior will be | |
504 | returned. This can be useful for implementing a search for a | |
505 | inferior with arbitrary attributes, or for applying some operation | |
506 | to every inferior. | |
507 | ||
508 | It is safe to delete the iterated inferior from the callback. */ | |
509 | extern struct inferior *iterate_over_inferiors (int (*) (struct inferior *, | |
510 | void *), | |
511 | void *); | |
512 | ||
b77209e0 PA |
513 | /* Returns true if the inferior list is not empty. */ |
514 | extern int have_inferiors (void); | |
515 | ||
8020350c DB |
516 | /* Returns the number of live inferiors (real live processes). */ |
517 | extern int number_of_live_inferiors (void); | |
518 | ||
c35b1492 PA |
519 | /* Returns true if there are any live inferiors in the inferior list |
520 | (not cores, not executables, real live processes). */ | |
521 | extern int have_live_inferiors (void); | |
522 | ||
5ed8105e PA |
523 | /* Save/restore the current inferior. */ |
524 | ||
525 | class scoped_restore_current_inferior | |
526 | { | |
527 | public: | |
528 | scoped_restore_current_inferior () | |
529 | : m_saved_inf (current_inferior ()) | |
530 | {} | |
531 | ||
532 | ~scoped_restore_current_inferior () | |
533 | { set_current_inferior (m_saved_inf); } | |
534 | ||
d6541620 | 535 | DISABLE_COPY_AND_ASSIGN (scoped_restore_current_inferior); |
5ed8105e PA |
536 | |
537 | private: | |
538 | inferior *m_saved_inf; | |
539 | }; | |
540 | ||
6c95b8df | 541 | |
c65b3e0d PA |
542 | /* Traverse all inferiors. */ |
543 | ||
544 | #define ALL_INFERIORS(I) \ | |
545 | for ((I) = inferior_list; (I); (I) = (I)->next) | |
546 | ||
85ad3aaf PA |
547 | /* Traverse all non-exited inferiors. */ |
548 | ||
549 | #define ALL_NON_EXITED_INFERIORS(I) \ | |
550 | ALL_INFERIORS (I) \ | |
551 | if ((I)->pid != 0) | |
552 | ||
6c95b8df PA |
553 | extern struct inferior *inferior_list; |
554 | ||
555 | /* Prune away automatically added inferiors that aren't required | |
556 | anymore. */ | |
557 | extern void prune_inferiors (void); | |
558 | ||
559 | extern int number_of_inferiors (void); | |
560 | ||
a79b8f6e VP |
561 | extern struct inferior *add_inferior_with_spaces (void); |
562 | ||
4034d0ff AT |
563 | /* Print the current selected inferior. */ |
564 | extern void print_selected_inferior (struct ui_out *uiout); | |
565 | ||
c906108c | 566 | #endif /* !defined (INFERIOR_H) */ |