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 | 33 | struct continuation; |
3a3fd0fd | 34 | struct inferior; |
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 | ||
9a6c7d9c SDJ |
45 | /* For gdb_environ. */ |
46 | #include "environ.h" | |
47 | ||
6c95b8df | 48 | #include "progspace.h" |
8e260fc0 | 49 | #include "registry.h" |
6c95b8df | 50 | |
b15cc25c | 51 | #include "symfile-add-flags.h" |
3a3fd0fd | 52 | #include "common/refcounted-object.h" |
b15cc25c | 53 | |
2090129c SDJ |
54 | #include "common-inferior.h" |
55 | ||
16c381f0 JK |
56 | struct infcall_suspend_state; |
57 | struct infcall_control_state; | |
7a292a7a | 58 | |
16c381f0 JK |
59 | extern struct infcall_suspend_state *save_infcall_suspend_state (void); |
60 | extern struct infcall_control_state *save_infcall_control_state (void); | |
c906108c | 61 | |
16c381f0 JK |
62 | extern void restore_infcall_suspend_state (struct infcall_suspend_state *); |
63 | extern void restore_infcall_control_state (struct infcall_control_state *); | |
b89667eb | 64 | |
16c381f0 JK |
65 | extern struct cleanup *make_cleanup_restore_infcall_suspend_state |
66 | (struct infcall_suspend_state *); | |
67 | extern struct cleanup *make_cleanup_restore_infcall_control_state | |
68 | (struct infcall_control_state *); | |
b89667eb | 69 | |
16c381f0 JK |
70 | extern void discard_infcall_suspend_state (struct infcall_suspend_state *); |
71 | extern void discard_infcall_control_state (struct infcall_control_state *); | |
7a292a7a | 72 | |
16c381f0 JK |
73 | extern struct regcache * |
74 | get_infcall_suspend_state_regcache (struct infcall_suspend_state *); | |
b89667eb | 75 | |
a14ed312 | 76 | extern void set_sigint_trap (void); |
c906108c | 77 | |
a14ed312 | 78 | extern void clear_sigint_trap (void); |
c906108c | 79 | |
3cb3b8df | 80 | /* Set/get file name for default use for standard in/out in the inferior. */ |
c906108c | 81 | |
3cb3b8df BR |
82 | extern void set_inferior_io_terminal (const char *terminal_name); |
83 | extern const char *get_inferior_io_terminal (void); | |
c906108c | 84 | |
39f77062 | 85 | /* Collected pid, tid, etc. of the debugged inferior. When there's |
dfd4cc63 | 86 | no inferior, ptid_get_pid (inferior_ptid) will be 0. */ |
c906108c | 87 | |
39f77062 | 88 | extern ptid_t inferior_ptid; |
c906108c | 89 | |
a14ed312 | 90 | extern void generic_mourn_inferior (void); |
c906108c | 91 | |
9898f801 UW |
92 | extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch, |
93 | struct type *type, | |
b60c417a | 94 | const gdb_byte *buf); |
9898f801 UW |
95 | extern void unsigned_address_to_pointer (struct gdbarch *gdbarch, |
96 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 97 | CORE_ADDR addr); |
9898f801 UW |
98 | extern CORE_ADDR signed_pointer_to_address (struct gdbarch *gdbarch, |
99 | struct type *type, | |
b60c417a | 100 | const gdb_byte *buf); |
9898f801 UW |
101 | extern void address_to_signed_pointer (struct gdbarch *gdbarch, |
102 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 103 | CORE_ADDR addr); |
4478b372 | 104 | |
a14ed312 | 105 | extern void reopen_exec_file (void); |
c906108c | 106 | |
c906108c SS |
107 | /* From misc files */ |
108 | ||
0ab7a791 AC |
109 | extern void default_print_registers_info (struct gdbarch *gdbarch, |
110 | struct ui_file *file, | |
111 | struct frame_info *frame, | |
112 | int regnum, int all); | |
666e11c5 | 113 | |
cc86d1cb YQ |
114 | /* Default implementation of gdbarch_print_float_info. Print |
115 | the values of all floating point registers. */ | |
116 | ||
117 | extern void default_print_float_info (struct gdbarch *gdbarch, | |
118 | struct ui_file *file, | |
119 | struct frame_info *frame, | |
120 | const char *args); | |
121 | ||
0a4f40a2 | 122 | extern void child_terminal_info (struct target_ops *self, const char *, int); |
c906108c | 123 | |
11db9430 | 124 | extern void info_terminal_command (char *, int); |
c906108c | 125 | |
d6b64346 PA |
126 | extern void child_terminal_ours (struct target_ops *self); |
127 | ||
128 | extern void child_terminal_ours_for_output (struct target_ops *self); | |
c906108c | 129 | |
d6b64346 | 130 | extern void child_terminal_inferior (struct target_ops *self); |
c906108c | 131 | |
d6b64346 | 132 | extern void child_terminal_init (struct target_ops *self); |
c906108c | 133 | |
d6b64346 | 134 | extern void child_terminal_init_with_pgrp (int pgrp); |
c906108c | 135 | |
c906108c SS |
136 | /* From fork-child.c */ |
137 | ||
2090129c SDJ |
138 | /* Helper function to call STARTUP_INFERIOR with PID and NUM_TRAPS. |
139 | This function already calls set_executing. Return the ptid_t from | |
140 | STARTUP_INFERIOR. */ | |
141 | extern ptid_t gdb_startup_inferior (pid_t pid, int num_traps); | |
c906108c | 142 | |
bd57a748 | 143 | extern char *construct_inferior_arguments (int, char **); |
552c04a7 | 144 | |
c906108c SS |
145 | /* From infcmd.c */ |
146 | ||
6efcd9a8 PA |
147 | /* Initial inferior setup. Determines the exec file is not yet known, |
148 | takes any necessary post-attaching actions, fetches the target | |
149 | description and syncs the shared library list. */ | |
150 | ||
151 | extern void setup_inferior (int from_tty); | |
152 | ||
281b533b DJ |
153 | extern void post_create_inferior (struct target_ops *, int); |
154 | ||
a14ed312 | 155 | extern void attach_command (char *, int); |
c906108c | 156 | |
a250df2e | 157 | extern char *get_inferior_args (void); |
07091751 | 158 | |
3f81c18a | 159 | extern void set_inferior_args (char *); |
07091751 | 160 | |
552c04a7 TT |
161 | extern void set_inferior_args_vector (int, char **); |
162 | ||
36dc181b EZ |
163 | extern void registers_info (char *, int); |
164 | ||
77ebaa5a VP |
165 | extern void continue_1 (int all_threads); |
166 | ||
77ebaa5a VP |
167 | extern void interrupt_target_1 (int all_threads); |
168 | ||
186c406b TT |
169 | extern void delete_longjmp_breakpoint_cleanup (void *arg); |
170 | ||
6418d433 VP |
171 | extern void detach_command (char *, int); |
172 | ||
1941c569 PA |
173 | extern void notice_new_inferior (ptid_t, int, int); |
174 | ||
0700e23e PA |
175 | extern struct value *get_return_value (struct value *function, |
176 | struct type *value_type); | |
cc72b2a2 | 177 | |
329ea579 PA |
178 | /* Prepare for execution command. TARGET is the target that will run |
179 | the command. BACKGROUND determines whether this is a foreground | |
180 | (synchronous) or background (asynchronous) command. */ | |
181 | ||
182 | extern void prepare_execution_command (struct target_ops *target, | |
183 | int background); | |
184 | ||
98882a26 PA |
185 | /* Whether to start up the debuggee under a shell. |
186 | ||
187 | If startup-with-shell is set, GDB's "run" will attempt to start up | |
188 | the debuggee under a shell. | |
189 | ||
190 | This is in order for argument-expansion to occur. E.g., | |
191 | ||
192 | (gdb) run * | |
193 | ||
194 | The "*" gets expanded by the shell into a list of files. | |
195 | ||
196 | While this is a nice feature, it may be handy to bypass the shell | |
197 | in some cases. To disable this feature, do "set startup-with-shell | |
198 | false". | |
199 | ||
200 | The catch-exec traps expected during start-up will be one more if | |
201 | the target is started up with a shell. */ | |
202 | extern int startup_with_shell; | |
203 | ||
c906108c SS |
204 | /* Address at which inferior stopped. */ |
205 | ||
206 | extern CORE_ADDR stop_pc; | |
207 | ||
c906108c SS |
208 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
209 | ||
aa7d318d | 210 | extern enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
211 | |
212 | /* Nonzero if program stopped due to a random (unexpected) signal in | |
213 | inferior process. */ | |
214 | ||
215 | extern int stopped_by_random_signal; | |
216 | ||
a49f981f MS |
217 | /* STEP_OVER_ALL means step over all subroutine calls. |
218 | STEP_OVER_UNDEBUGGABLE means step over calls to undebuggable functions. | |
219 | STEP_OVER_NONE means don't step over any subroutine calls. */ | |
c906108c | 220 | |
5fbbeb29 CF |
221 | enum step_over_calls_kind |
222 | { | |
223 | STEP_OVER_NONE, | |
224 | STEP_OVER_ALL, | |
a4acd088 CF |
225 | STEP_OVER_UNDEBUGGABLE |
226 | }; | |
227 | ||
b0f4b84b DJ |
228 | /* Anything but NO_STOP_QUIETLY means we expect a trap and the caller |
229 | will handle it themselves. STOP_QUIETLY is used when running in | |
230 | the shell before the child program has been exec'd and when running | |
231 | through shared library loading. STOP_QUIETLY_REMOTE is used when | |
232 | setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP | |
233 | except that there is no need to hide a signal. */ | |
c54cfec8 | 234 | |
7c0bc051 DE |
235 | /* STOP_QUIETLY_NO_SIGSTOP is used to handle a tricky situation with attach. |
236 | When doing an attach, the kernel stops the debuggee with a SIGSTOP. | |
237 | On newer GNU/Linux kernels (>= 2.5.61) the handling of SIGSTOP for | |
238 | a ptraced process has changed. Earlier versions of the kernel | |
239 | would ignore these SIGSTOPs, while now SIGSTOP is treated like any | |
240 | other signal, i.e. it is not muffled. | |
241 | ||
c54cfec8 EZ |
242 | If the gdb user does a 'continue' after the 'attach', gdb passes |
243 | the global variable stop_signal (which stores the signal from the | |
244 | attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is | |
245 | problematic, because the kernel doesn't ignore such SIGSTOP | |
1777feb0 | 246 | now. I.e. it is reported back to gdb, which in turn presents it |
c54cfec8 | 247 | back to the user. |
7c0bc051 | 248 | |
c54cfec8 EZ |
249 | To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows |
250 | gdb to clear the value of stop_signal after the attach, so that it | |
251 | is not passed back down to the kernel. */ | |
252 | ||
253 | enum stop_kind | |
254 | { | |
255 | NO_STOP_QUIETLY = 0, | |
256 | STOP_QUIETLY, | |
b0f4b84b | 257 | STOP_QUIETLY_REMOTE, |
c54cfec8 EZ |
258 | STOP_QUIETLY_NO_SIGSTOP |
259 | }; | |
c906108c | 260 | |
c906108c | 261 | \f |
faaf634c | 262 | /* Possible values for gdbarch_call_dummy_location. */ |
c906108c | 263 | #define ON_STACK 1 |
c906108c SS |
264 | #define AT_ENTRY_POINT 4 |
265 | ||
b77209e0 PA |
266 | struct private_inferior; |
267 | ||
16c381f0 JK |
268 | /* Inferior process specific part of `struct infcall_control_state'. |
269 | ||
270 | Inferior thread counterpart is `struct thread_control_state'. */ | |
271 | ||
272 | struct inferior_control_state | |
273 | { | |
274 | /* See the definition of stop_kind above. */ | |
275 | enum stop_kind stop_soon; | |
276 | }; | |
277 | ||
3a3fd0fd PA |
278 | /* Return a pointer to the current inferior. */ |
279 | extern inferior *current_inferior (); | |
280 | ||
281 | extern void set_current_inferior (inferior *); | |
282 | ||
b77209e0 PA |
283 | /* GDB represents the state of each program execution with an object |
284 | called an inferior. An inferior typically corresponds to a process | |
285 | but is more general and applies also to targets that do not have a | |
286 | notion of processes. Each run of an executable creates a new | |
287 | inferior, as does each attachment to an existing process. | |
288 | Inferiors have unique internal identifiers that are different from | |
289 | target process ids. Each inferior may in turn have multiple | |
3a3fd0fd PA |
290 | threads running in it. |
291 | ||
292 | Inferiors are intrusively refcounted objects. Unlike thread | |
293 | objects, being the user-selected inferior is considered a strong | |
294 | reference and is thus accounted for in the inferior object's | |
295 | refcount (see set_current_inferior). When GDB needs to remember | |
296 | the selected inferior to later restore it, GDB temporarily bumps | |
297 | the inferior object's refcount, to prevent something deleting the | |
298 | inferior object before reverting back (e.g., due to a | |
299 | "remove-inferiors" command (see | |
300 | make_cleanup_restore_current_thread). All other inferior | |
301 | references are considered weak references. Inferiors are always | |
302 | listed exactly once in the inferior list, so placing an inferior in | |
303 | the inferior list is an implicit, not counted strong reference. */ | |
304 | ||
305 | class inferior : public refcounted_object | |
b77209e0 | 306 | { |
0550c955 PA |
307 | public: |
308 | explicit inferior (int pid); | |
309 | ~inferior (); | |
310 | ||
3a3fd0fd PA |
311 | /* Returns true if we can delete this inferior. */ |
312 | bool deletable () const { return refcount () == 0; } | |
313 | ||
b77209e0 | 314 | /* Pointer to next inferior in singly-linked list of inferiors. */ |
0550c955 | 315 | struct inferior *next = NULL; |
b77209e0 PA |
316 | |
317 | /* Convenient handle (GDB inferior id). Unique across all | |
318 | inferiors. */ | |
0550c955 | 319 | int num = 0; |
b77209e0 PA |
320 | |
321 | /* Actual target inferior id, usually, a process id. This matches | |
322 | the ptid_t.pid member of threads of this inferior. */ | |
0550c955 | 323 | int pid = 0; |
e714e1bf | 324 | /* True if the PID was actually faked by GDB. */ |
0550c955 | 325 | bool fake_pid_p = false; |
b77209e0 | 326 | |
5d5658a1 | 327 | /* The highest thread number this inferior ever had. */ |
0550c955 | 328 | int highest_thread_num = 0; |
5d5658a1 | 329 | |
16c381f0 JK |
330 | /* State of GDB control of inferior process execution. |
331 | See `struct inferior_control_state'. */ | |
0550c955 | 332 | inferior_control_state control {NO_STOP_QUIETLY}; |
16c381f0 | 333 | |
6c95b8df PA |
334 | /* True if this was an auto-created inferior, e.g. created from |
335 | following a fork; false, if this inferior was manually added by | |
336 | the user, and we should not attempt to prune it | |
337 | automatically. */ | |
0550c955 | 338 | bool removable = false; |
6c95b8df PA |
339 | |
340 | /* The address space bound to this inferior. */ | |
0550c955 | 341 | struct address_space *aspace = NULL; |
6c95b8df PA |
342 | |
343 | /* The program space bound to this inferior. */ | |
0550c955 | 344 | struct program_space *pspace = NULL; |
6c95b8df | 345 | |
3f81c18a | 346 | /* The arguments string to use when running. */ |
0550c955 | 347 | char *args = NULL; |
3f81c18a VP |
348 | |
349 | /* The size of elements in argv. */ | |
0550c955 | 350 | int argc = 0; |
3f81c18a VP |
351 | |
352 | /* The vector version of arguments. If ARGC is nonzero, | |
353 | then we must compute ARGS from this (via the target). | |
354 | This is always coming from main's argv and therefore | |
355 | should never be freed. */ | |
0550c955 | 356 | char **argv = NULL; |
3f81c18a VP |
357 | |
358 | /* The name of terminal device to use for I/O. */ | |
0550c955 | 359 | char *terminal = NULL; |
3f81c18a VP |
360 | |
361 | /* Environment to use for running inferior, | |
362 | in format described in environ.h. */ | |
9a6c7d9c | 363 | gdb_environ environment; |
3f81c18a | 364 | |
0550c955 PA |
365 | /* True if this child process was attached rather than forked. */ |
366 | bool attach_flag = false; | |
181e7f93 | 367 | |
6c95b8df PA |
368 | /* If this inferior is a vfork child, then this is the pointer to |
369 | its vfork parent, if GDB is still attached to it. */ | |
0550c955 | 370 | inferior *vfork_parent = NULL; |
6c95b8df PA |
371 | |
372 | /* If this process is a vfork parent, this is the pointer to the | |
373 | child. Since a vfork parent is left frozen by the kernel until | |
374 | the child execs or exits, a process can only have one vfork child | |
375 | at a given time. */ | |
0550c955 | 376 | inferior *vfork_child = NULL; |
6c95b8df PA |
377 | |
378 | /* True if this inferior should be detached when it's vfork sibling | |
379 | exits or execs. */ | |
0550c955 | 380 | bool pending_detach = false; |
6c95b8df PA |
381 | |
382 | /* True if this inferior is a vfork parent waiting for a vfork child | |
383 | not under our control to be done with the shared memory region, | |
384 | either by exiting or execing. */ | |
0550c955 | 385 | bool waiting_for_vfork_done = false; |
6c95b8df | 386 | |
24291992 | 387 | /* True if we're in the process of detaching from this inferior. */ |
9bcb1f16 | 388 | bool detaching = false; |
24291992 | 389 | |
e0ba6746 PA |
390 | /* What is left to do for an execution command after any thread of |
391 | this inferior stops. For continuations associated with a | |
392 | specific thread, see `struct thread_info'. */ | |
0550c955 | 393 | continuation *continuations = NULL; |
e0ba6746 | 394 | |
6efcd9a8 PA |
395 | /* True if setup_inferior wasn't called for this inferior yet. |
396 | Until that is done, we must not access inferior memory or | |
397 | registers, as we haven't determined the target | |
398 | architecture/description. */ | |
0550c955 | 399 | bool needs_setup = false; |
6efcd9a8 | 400 | |
b77209e0 | 401 | /* Private data used by the target vector implementation. */ |
0550c955 | 402 | private_inferior *priv = NULL; |
a96d9b2e | 403 | |
8cf64490 TT |
404 | /* HAS_EXIT_CODE is true if the inferior exited with an exit code. |
405 | In this case, the EXIT_CODE field is also valid. */ | |
0550c955 PA |
406 | bool has_exit_code = false; |
407 | LONGEST exit_code = 0; | |
8cf64490 | 408 | |
7dcd53a0 | 409 | /* Default flags to pass to the symbol reading functions. These are |
b15cc25c | 410 | used whenever a new objfile is created. */ |
0550c955 | 411 | symfile_add_flags symfile_flags = 0; |
7dcd53a0 | 412 | |
6ecd4729 PA |
413 | /* Info about an inferior's target description (if it's fetched; the |
414 | user supplied description's filename, if any; etc.). */ | |
0550c955 | 415 | target_desc_info *tdesc_info = NULL; |
6ecd4729 PA |
416 | |
417 | /* The architecture associated with the inferior through the | |
418 | connection to the target. | |
419 | ||
420 | The architecture vector provides some information that is really | |
421 | a property of the inferior, accessed through a particular target: | |
422 | ptrace operations; the layout of certain RSP packets; the | |
423 | solib_ops vector; etc. To differentiate architecture accesses to | |
424 | per-inferior/target properties from | |
425 | per-thread/per-frame/per-objfile properties, accesses to | |
426 | per-inferior/target properties should be made through | |
427 | this gdbarch. */ | |
0550c955 | 428 | struct gdbarch *gdbarch = NULL; |
6ecd4729 | 429 | |
6c95b8df | 430 | /* Per inferior data-pointers required by other GDB modules. */ |
8e260fc0 | 431 | REGISTRY_FIELDS; |
b77209e0 PA |
432 | }; |
433 | ||
6c95b8df PA |
434 | /* Keep a registry of per-inferior data-pointers required by other GDB |
435 | modules. */ | |
436 | ||
8e260fc0 | 437 | DECLARE_REGISTRY (inferior); |
6c95b8df | 438 | |
b77209e0 PA |
439 | /* Add an inferior to the inferior list, print a message that a new |
440 | inferior is found, and return the pointer to the new inferior. | |
441 | Caller may use this pointer to initialize the private inferior | |
442 | data. */ | |
443 | extern struct inferior *add_inferior (int pid); | |
444 | ||
445 | /* Same as add_inferior, but don't print new inferior notifications to | |
446 | the CLI. */ | |
447 | extern struct inferior *add_inferior_silent (int pid); | |
448 | ||
7a41607e | 449 | extern void delete_inferior (struct inferior *todel); |
b77209e0 PA |
450 | |
451 | /* Delete an existing inferior list entry, due to inferior detaching. */ | |
452 | extern void detach_inferior (int pid); | |
453 | ||
6c95b8df PA |
454 | extern void exit_inferior (int pid); |
455 | ||
456 | extern void exit_inferior_silent (int pid); | |
457 | ||
458 | extern void exit_inferior_num_silent (int num); | |
459 | ||
460 | extern void inferior_appeared (struct inferior *inf, int pid); | |
461 | ||
82f73884 PA |
462 | /* Get rid of all inferiors. */ |
463 | extern void discard_all_inferiors (void); | |
464 | ||
b77209e0 PA |
465 | /* Translate the integer inferior id (GDB's homegrown id, not the system's) |
466 | into a "pid" (which may be overloaded with extra inferior information). */ | |
467 | extern int gdb_inferior_id_to_pid (int); | |
468 | ||
469 | /* Translate a target 'pid' into the integer inferior id (GDB's | |
470 | homegrown id, not the system's). */ | |
471 | extern int pid_to_gdb_inferior_id (int pid); | |
472 | ||
473 | /* Boolean test for an already-known pid. */ | |
474 | extern int in_inferior_list (int pid); | |
475 | ||
476 | /* Boolean test for an already-known inferior id (GDB's homegrown id, | |
477 | not the system's). */ | |
2c0b251b | 478 | extern int valid_gdb_inferior_id (int num); |
b77209e0 | 479 | |
6c95b8df | 480 | /* Search function to lookup an inferior by target 'pid'. */ |
b77209e0 PA |
481 | extern struct inferior *find_inferior_pid (int pid); |
482 | ||
c9657e70 SM |
483 | /* Search function to lookup an inferior whose pid is equal to 'ptid.pid'. */ |
484 | extern struct inferior *find_inferior_ptid (ptid_t ptid); | |
485 | ||
6c95b8df PA |
486 | /* Search function to lookup an inferior by GDB 'num'. */ |
487 | extern struct inferior *find_inferior_id (int num); | |
488 | ||
32990ada PA |
489 | /* Find an inferior bound to PSPACE, giving preference to the current |
490 | inferior. */ | |
6c95b8df PA |
491 | extern struct inferior * |
492 | find_inferior_for_program_space (struct program_space *pspace); | |
493 | ||
b77209e0 PA |
494 | /* Inferior iterator function. |
495 | ||
496 | Calls a callback function once for each inferior, so long as the | |
497 | callback function returns false. If the callback function returns | |
498 | true, the iteration will end and the current inferior will be | |
499 | returned. This can be useful for implementing a search for a | |
500 | inferior with arbitrary attributes, or for applying some operation | |
501 | to every inferior. | |
502 | ||
503 | It is safe to delete the iterated inferior from the callback. */ | |
504 | extern struct inferior *iterate_over_inferiors (int (*) (struct inferior *, | |
505 | void *), | |
506 | void *); | |
507 | ||
b77209e0 PA |
508 | /* Returns true if the inferior list is not empty. */ |
509 | extern int have_inferiors (void); | |
510 | ||
8020350c DB |
511 | /* Returns the number of live inferiors (real live processes). */ |
512 | extern int number_of_live_inferiors (void); | |
513 | ||
c35b1492 PA |
514 | /* Returns true if there are any live inferiors in the inferior list |
515 | (not cores, not executables, real live processes). */ | |
516 | extern int have_live_inferiors (void); | |
517 | ||
5ed8105e PA |
518 | /* Save/restore the current inferior. */ |
519 | ||
520 | class scoped_restore_current_inferior | |
521 | { | |
522 | public: | |
523 | scoped_restore_current_inferior () | |
524 | : m_saved_inf (current_inferior ()) | |
525 | {} | |
526 | ||
527 | ~scoped_restore_current_inferior () | |
528 | { set_current_inferior (m_saved_inf); } | |
529 | ||
d6541620 | 530 | DISABLE_COPY_AND_ASSIGN (scoped_restore_current_inferior); |
5ed8105e PA |
531 | |
532 | private: | |
533 | inferior *m_saved_inf; | |
534 | }; | |
535 | ||
6c95b8df | 536 | |
c65b3e0d PA |
537 | /* Traverse all inferiors. */ |
538 | ||
539 | #define ALL_INFERIORS(I) \ | |
540 | for ((I) = inferior_list; (I); (I) = (I)->next) | |
541 | ||
85ad3aaf PA |
542 | /* Traverse all non-exited inferiors. */ |
543 | ||
544 | #define ALL_NON_EXITED_INFERIORS(I) \ | |
545 | ALL_INFERIORS (I) \ | |
546 | if ((I)->pid != 0) | |
547 | ||
6c95b8df PA |
548 | extern struct inferior *inferior_list; |
549 | ||
550 | /* Prune away automatically added inferiors that aren't required | |
551 | anymore. */ | |
552 | extern void prune_inferiors (void); | |
553 | ||
554 | extern int number_of_inferiors (void); | |
555 | ||
a79b8f6e VP |
556 | extern struct inferior *add_inferior_with_spaces (void); |
557 | ||
4034d0ff AT |
558 | /* Print the current selected inferior. */ |
559 | extern void print_selected_inferior (struct ui_out *uiout); | |
560 | ||
c906108c | 561 | #endif /* !defined (INFERIOR_H) */ |