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 | |
b811d2c2 | 4 | Copyright (C) 1986-2020 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 | 46 | /* For gdb_environ. */ |
268a13a5 | 47 | #include "gdbsupport/environ.h" |
9a6c7d9c | 48 | |
6c95b8df | 49 | #include "progspace.h" |
8e260fc0 | 50 | #include "registry.h" |
6c95b8df | 51 | |
b15cc25c | 52 | #include "symfile-add-flags.h" |
268a13a5 TT |
53 | #include "gdbsupport/refcounted-object.h" |
54 | #include "gdbsupport/forward-scope-exit.h" | |
277474ee | 55 | #include "gdbsupport/gdb_unique_ptr.h" |
b15cc25c | 56 | |
268a13a5 | 57 | #include "gdbsupport/common-inferior.h" |
08036331 | 58 | #include "gdbthread.h" |
2090129c | 59 | |
5b6d1e4f PA |
60 | #include "process-stratum-target.h" |
61 | ||
16c381f0 JK |
62 | struct infcall_suspend_state; |
63 | struct infcall_control_state; | |
7a292a7a | 64 | |
16c381f0 JK |
65 | extern void restore_infcall_suspend_state (struct infcall_suspend_state *); |
66 | extern void restore_infcall_control_state (struct infcall_control_state *); | |
b89667eb | 67 | |
c7c4d3fa TT |
68 | /* A deleter for infcall_suspend_state that calls |
69 | restore_infcall_suspend_state. */ | |
70 | struct infcall_suspend_state_deleter | |
71 | { | |
72 | void operator() (struct infcall_suspend_state *state) const | |
73 | { | |
ee3c5f89 PW |
74 | try |
75 | { | |
76 | restore_infcall_suspend_state (state); | |
77 | } | |
78 | catch (const gdb_exception_error &e) | |
79 | { | |
80 | /* If we are restoring the inferior state due to an exception, | |
81 | some error message will be printed. So, only warn the user | |
82 | when we cannot restore during normal execution. */ | |
83 | if (!std::uncaught_exception ()) | |
84 | warning (_("Failed to restore inferior state: %s"), e.what ()); | |
85 | } | |
c7c4d3fa TT |
86 | } |
87 | }; | |
88 | ||
89 | /* A unique_ptr specialization for infcall_suspend_state. */ | |
90 | typedef std::unique_ptr<infcall_suspend_state, infcall_suspend_state_deleter> | |
91 | infcall_suspend_state_up; | |
92 | ||
cb524840 TT |
93 | extern infcall_suspend_state_up save_infcall_suspend_state (); |
94 | ||
c7c4d3fa TT |
95 | /* A deleter for infcall_control_state that calls |
96 | restore_infcall_control_state. */ | |
97 | struct infcall_control_state_deleter | |
98 | { | |
99 | void operator() (struct infcall_control_state *state) const | |
100 | { | |
101 | restore_infcall_control_state (state); | |
102 | } | |
103 | }; | |
104 | ||
105 | /* A unique_ptr specialization for infcall_control_state. */ | |
106 | typedef std::unique_ptr<infcall_control_state, infcall_control_state_deleter> | |
107 | infcall_control_state_up; | |
b89667eb | 108 | |
cb524840 TT |
109 | extern infcall_control_state_up save_infcall_control_state (); |
110 | ||
16c381f0 JK |
111 | extern void discard_infcall_suspend_state (struct infcall_suspend_state *); |
112 | extern void discard_infcall_control_state (struct infcall_control_state *); | |
7a292a7a | 113 | |
daf6667d | 114 | extern readonly_detached_regcache * |
16c381f0 | 115 | get_infcall_suspend_state_regcache (struct infcall_suspend_state *); |
b89667eb | 116 | |
a14ed312 | 117 | extern void set_sigint_trap (void); |
c906108c | 118 | |
a14ed312 | 119 | extern void clear_sigint_trap (void); |
c906108c | 120 | |
39f77062 | 121 | /* Collected pid, tid, etc. of the debugged inferior. When there's |
e99b03dc | 122 | no inferior, inferior_ptid.pid () will be 0. */ |
c906108c | 123 | |
39f77062 | 124 | extern ptid_t inferior_ptid; |
c906108c | 125 | |
a14ed312 | 126 | extern void generic_mourn_inferior (void); |
c906108c | 127 | |
9898f801 UW |
128 | extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch, |
129 | struct type *type, | |
b60c417a | 130 | const gdb_byte *buf); |
9898f801 UW |
131 | extern void unsigned_address_to_pointer (struct gdbarch *gdbarch, |
132 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 133 | CORE_ADDR addr); |
9898f801 UW |
134 | extern CORE_ADDR signed_pointer_to_address (struct gdbarch *gdbarch, |
135 | struct type *type, | |
b60c417a | 136 | const gdb_byte *buf); |
9898f801 UW |
137 | extern void address_to_signed_pointer (struct gdbarch *gdbarch, |
138 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 139 | CORE_ADDR addr); |
4478b372 | 140 | |
a14ed312 | 141 | extern void reopen_exec_file (void); |
c906108c | 142 | |
c906108c SS |
143 | /* From misc files */ |
144 | ||
0ab7a791 AC |
145 | extern void default_print_registers_info (struct gdbarch *gdbarch, |
146 | struct ui_file *file, | |
147 | struct frame_info *frame, | |
148 | int regnum, int all); | |
666e11c5 | 149 | |
cc86d1cb YQ |
150 | /* Default implementation of gdbarch_print_float_info. Print |
151 | the values of all floating point registers. */ | |
152 | ||
153 | extern void default_print_float_info (struct gdbarch *gdbarch, | |
154 | struct ui_file *file, | |
155 | struct frame_info *frame, | |
156 | const char *args); | |
157 | ||
0a4f40a2 | 158 | extern void child_terminal_info (struct target_ops *self, const char *, int); |
c906108c | 159 | |
d6b64346 PA |
160 | extern void child_terminal_ours (struct target_ops *self); |
161 | ||
162 | extern void child_terminal_ours_for_output (struct target_ops *self); | |
c906108c | 163 | |
d6b64346 | 164 | extern void child_terminal_inferior (struct target_ops *self); |
c906108c | 165 | |
e671cd59 PA |
166 | extern void child_terminal_save_inferior (struct target_ops *self); |
167 | ||
d6b64346 | 168 | extern void child_terminal_init (struct target_ops *self); |
c906108c | 169 | |
d6b64346 | 170 | extern void child_terminal_init_with_pgrp (int pgrp); |
c906108c | 171 | |
e671cd59 PA |
172 | extern void child_pass_ctrlc (struct target_ops *self); |
173 | ||
174 | extern void child_interrupt (struct target_ops *self); | |
175 | ||
c906108c SS |
176 | /* From fork-child.c */ |
177 | ||
2090129c SDJ |
178 | /* Helper function to call STARTUP_INFERIOR with PID and NUM_TRAPS. |
179 | This function already calls set_executing. Return the ptid_t from | |
180 | STARTUP_INFERIOR. */ | |
181 | extern ptid_t gdb_startup_inferior (pid_t pid, int num_traps); | |
c906108c | 182 | |
c906108c SS |
183 | /* From infcmd.c */ |
184 | ||
6efcd9a8 PA |
185 | /* Initial inferior setup. Determines the exec file is not yet known, |
186 | takes any necessary post-attaching actions, fetches the target | |
187 | description and syncs the shared library list. */ | |
188 | ||
189 | extern void setup_inferior (int from_tty); | |
190 | ||
281b533b DJ |
191 | extern void post_create_inferior (struct target_ops *, int); |
192 | ||
0b39b52e | 193 | extern void attach_command (const char *, int); |
c906108c | 194 | |
cbaaa0ca | 195 | extern const char *get_inferior_args (void); |
07091751 | 196 | |
0b39b52e | 197 | extern void set_inferior_args (const char *); |
07091751 | 198 | |
552c04a7 TT |
199 | extern void set_inferior_args_vector (int, char **); |
200 | ||
1d12d88f | 201 | extern void registers_info (const char *, int); |
36dc181b | 202 | |
77ebaa5a VP |
203 | extern void continue_1 (int all_threads); |
204 | ||
5b6d1e4f | 205 | extern void interrupt_target_1 (bool all_threads); |
77ebaa5a | 206 | |
5419bdae TT |
207 | using delete_longjmp_breakpoint_cleanup |
208 | = FORWARD_SCOPE_EXIT (delete_longjmp_breakpoint); | |
186c406b | 209 | |
981a3fb3 | 210 | extern void detach_command (const char *, int); |
6418d433 | 211 | |
75cbc781 | 212 | extern void notice_new_inferior (struct thread_info *, int, int); |
1941c569 | 213 | |
0700e23e PA |
214 | extern struct value *get_return_value (struct value *function, |
215 | struct type *value_type); | |
cc72b2a2 | 216 | |
329ea579 PA |
217 | /* Prepare for execution command. TARGET is the target that will run |
218 | the command. BACKGROUND determines whether this is a foreground | |
219 | (synchronous) or background (asynchronous) command. */ | |
220 | ||
221 | extern void prepare_execution_command (struct target_ops *target, | |
222 | int background); | |
223 | ||
c906108c SS |
224 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
225 | ||
aa7d318d | 226 | extern enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
227 | |
228 | /* Nonzero if program stopped due to a random (unexpected) signal in | |
229 | inferior process. */ | |
230 | ||
231 | extern int stopped_by_random_signal; | |
232 | ||
f67c0c91 SDJ |
233 | /* Print notices on inferior events (attach, detach, etc.), set with |
234 | `set print inferior-events'. */ | |
491144b5 | 235 | extern bool print_inferior_events; |
f67c0c91 | 236 | |
b0f4b84b DJ |
237 | /* Anything but NO_STOP_QUIETLY means we expect a trap and the caller |
238 | will handle it themselves. STOP_QUIETLY is used when running in | |
239 | the shell before the child program has been exec'd and when running | |
240 | through shared library loading. STOP_QUIETLY_REMOTE is used when | |
241 | setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP | |
242 | except that there is no need to hide a signal. */ | |
c54cfec8 | 243 | |
7c0bc051 DE |
244 | /* STOP_QUIETLY_NO_SIGSTOP is used to handle a tricky situation with attach. |
245 | When doing an attach, the kernel stops the debuggee with a SIGSTOP. | |
246 | On newer GNU/Linux kernels (>= 2.5.61) the handling of SIGSTOP for | |
247 | a ptraced process has changed. Earlier versions of the kernel | |
248 | would ignore these SIGSTOPs, while now SIGSTOP is treated like any | |
249 | other signal, i.e. it is not muffled. | |
250 | ||
c54cfec8 EZ |
251 | If the gdb user does a 'continue' after the 'attach', gdb passes |
252 | the global variable stop_signal (which stores the signal from the | |
253 | attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is | |
254 | problematic, because the kernel doesn't ignore such SIGSTOP | |
1777feb0 | 255 | now. I.e. it is reported back to gdb, which in turn presents it |
c54cfec8 | 256 | back to the user. |
7c0bc051 | 257 | |
c54cfec8 EZ |
258 | To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows |
259 | gdb to clear the value of stop_signal after the attach, so that it | |
260 | is not passed back down to the kernel. */ | |
261 | ||
262 | enum stop_kind | |
263 | { | |
264 | NO_STOP_QUIETLY = 0, | |
265 | STOP_QUIETLY, | |
b0f4b84b | 266 | STOP_QUIETLY_REMOTE, |
c54cfec8 EZ |
267 | STOP_QUIETLY_NO_SIGSTOP |
268 | }; | |
c906108c | 269 | |
c906108c | 270 | \f |
faaf634c | 271 | /* Possible values for gdbarch_call_dummy_location. */ |
c906108c | 272 | #define ON_STACK 1 |
c906108c SS |
273 | #define AT_ENTRY_POINT 4 |
274 | ||
089354bb SM |
275 | /* Base class for target-specific inferior data. */ |
276 | ||
277 | struct private_inferior | |
278 | { | |
279 | virtual ~private_inferior () = 0; | |
280 | }; | |
b77209e0 | 281 | |
16c381f0 JK |
282 | /* Inferior process specific part of `struct infcall_control_state'. |
283 | ||
284 | Inferior thread counterpart is `struct thread_control_state'. */ | |
285 | ||
286 | struct inferior_control_state | |
287 | { | |
ee841dd8 TT |
288 | inferior_control_state () |
289 | : stop_soon (NO_STOP_QUIETLY) | |
290 | { | |
291 | } | |
292 | ||
293 | explicit inferior_control_state (enum stop_kind when) | |
294 | : stop_soon (when) | |
295 | { | |
296 | } | |
297 | ||
16c381f0 JK |
298 | /* See the definition of stop_kind above. */ |
299 | enum stop_kind stop_soon; | |
300 | }; | |
301 | ||
3a3fd0fd PA |
302 | /* Return a pointer to the current inferior. */ |
303 | extern inferior *current_inferior (); | |
304 | ||
305 | extern void set_current_inferior (inferior *); | |
306 | ||
db2d40f7 PA |
307 | /* Switch inferior (and program space) to INF, and switch to no thread |
308 | selected. */ | |
309 | extern void switch_to_inferior_no_thread (inferior *inf); | |
310 | ||
b77209e0 PA |
311 | /* GDB represents the state of each program execution with an object |
312 | called an inferior. An inferior typically corresponds to a process | |
313 | but is more general and applies also to targets that do not have a | |
314 | notion of processes. Each run of an executable creates a new | |
315 | inferior, as does each attachment to an existing process. | |
316 | Inferiors have unique internal identifiers that are different from | |
317 | target process ids. Each inferior may in turn have multiple | |
3a3fd0fd PA |
318 | threads running in it. |
319 | ||
320 | Inferiors are intrusively refcounted objects. Unlike thread | |
321 | objects, being the user-selected inferior is considered a strong | |
322 | reference and is thus accounted for in the inferior object's | |
323 | refcount (see set_current_inferior). When GDB needs to remember | |
324 | the selected inferior to later restore it, GDB temporarily bumps | |
325 | the inferior object's refcount, to prevent something deleting the | |
326 | inferior object before reverting back (e.g., due to a | |
327 | "remove-inferiors" command (see | |
09e3c4ca | 328 | scoped_restore_current_inferior). All other inferior |
3a3fd0fd PA |
329 | references are considered weak references. Inferiors are always |
330 | listed exactly once in the inferior list, so placing an inferior in | |
331 | the inferior list is an implicit, not counted strong reference. */ | |
332 | ||
333 | class inferior : public refcounted_object | |
b77209e0 | 334 | { |
0550c955 PA |
335 | public: |
336 | explicit inferior (int pid); | |
337 | ~inferior (); | |
338 | ||
3a3fd0fd PA |
339 | /* Returns true if we can delete this inferior. */ |
340 | bool deletable () const { return refcount () == 0; } | |
341 | ||
5b6d1e4f PA |
342 | /* Push T in this inferior's target stack. */ |
343 | void push_target (struct target_ops *t) | |
344 | { m_target_stack.push (t); } | |
345 | ||
346 | /* Unpush T from this inferior's target stack. */ | |
347 | int unpush_target (struct target_ops *t) | |
348 | { return m_target_stack.unpush (t); } | |
349 | ||
350 | /* Returns true if T is pushed in this inferior's target stack. */ | |
351 | bool target_is_pushed (target_ops *t) | |
352 | { return m_target_stack.is_pushed (t); } | |
353 | ||
354 | /* Find the target beneath T in this inferior's target stack. */ | |
355 | target_ops *find_target_beneath (const target_ops *t) | |
356 | { return m_target_stack.find_beneath (t); } | |
357 | ||
358 | /* Return the target at the top of this inferior's target stack. */ | |
359 | target_ops *top_target () | |
360 | { return m_target_stack.top (); } | |
361 | ||
362 | /* Return the target at process_stratum level in this inferior's | |
363 | target stack. */ | |
364 | struct process_stratum_target *process_target () | |
365 | { return (process_stratum_target *) m_target_stack.at (process_stratum); } | |
366 | ||
367 | /* Return the target at STRATUM in this inferior's target stack. */ | |
368 | target_ops *target_at (enum strata stratum) | |
369 | { return m_target_stack.at (stratum); } | |
370 | ||
5018ce90 PA |
371 | bool has_execution () |
372 | { return target_has_execution_1 (this); } | |
373 | ||
b77209e0 | 374 | /* Pointer to next inferior in singly-linked list of inferiors. */ |
0550c955 | 375 | struct inferior *next = NULL; |
b77209e0 | 376 | |
08036331 PA |
377 | /* This inferior's thread list. */ |
378 | thread_info *thread_list = nullptr; | |
379 | ||
380 | /* Returns a range adapter covering the inferior's threads, | |
381 | including exited threads. Used like this: | |
382 | ||
383 | for (thread_info *thr : inf->threads ()) | |
384 | { .... } | |
385 | */ | |
386 | inf_threads_range threads () | |
387 | { return inf_threads_range (this->thread_list); } | |
388 | ||
389 | /* Returns a range adapter covering the inferior's non-exited | |
390 | threads. Used like this: | |
391 | ||
392 | for (thread_info *thr : inf->non_exited_threads ()) | |
393 | { .... } | |
394 | */ | |
395 | inf_non_exited_threads_range non_exited_threads () | |
396 | { return inf_non_exited_threads_range (this->thread_list); } | |
397 | ||
398 | /* Like inferior::threads(), but returns a range adapter that can be | |
399 | used with range-for, safely. I.e., it is safe to delete the | |
400 | currently-iterated thread, like this: | |
401 | ||
402 | for (thread_info *t : inf->threads_safe ()) | |
403 | if (some_condition ()) | |
404 | delete f; | |
405 | */ | |
406 | inline safe_inf_threads_range threads_safe () | |
407 | { return safe_inf_threads_range (this->thread_list); } | |
408 | ||
05779d57 PA |
409 | /* Set/get file name for default use for standard in/out in the |
410 | inferior. On Unix systems, we try to make TERMINAL_NAME the | |
411 | inferior's controlling terminal. If TERMINAL_NAME is nullptr or | |
412 | the empty string, then the inferior inherits GDB's terminal (or | |
413 | GDBserver's if spawning a remote process). */ | |
414 | void set_tty (const char *terminal_name); | |
415 | const char *tty (); | |
416 | ||
b77209e0 PA |
417 | /* Convenient handle (GDB inferior id). Unique across all |
418 | inferiors. */ | |
0550c955 | 419 | int num = 0; |
b77209e0 PA |
420 | |
421 | /* Actual target inferior id, usually, a process id. This matches | |
422 | the ptid_t.pid member of threads of this inferior. */ | |
0550c955 | 423 | int pid = 0; |
e714e1bf | 424 | /* True if the PID was actually faked by GDB. */ |
0550c955 | 425 | bool fake_pid_p = false; |
b77209e0 | 426 | |
5d5658a1 | 427 | /* The highest thread number this inferior ever had. */ |
0550c955 | 428 | int highest_thread_num = 0; |
5d5658a1 | 429 | |
16c381f0 JK |
430 | /* State of GDB control of inferior process execution. |
431 | See `struct inferior_control_state'. */ | |
ee841dd8 | 432 | inferior_control_state control; |
16c381f0 | 433 | |
6c95b8df PA |
434 | /* True if this was an auto-created inferior, e.g. created from |
435 | following a fork; false, if this inferior was manually added by | |
436 | the user, and we should not attempt to prune it | |
437 | automatically. */ | |
0550c955 | 438 | bool removable = false; |
6c95b8df PA |
439 | |
440 | /* The address space bound to this inferior. */ | |
0550c955 | 441 | struct address_space *aspace = NULL; |
6c95b8df PA |
442 | |
443 | /* The program space bound to this inferior. */ | |
0550c955 | 444 | struct program_space *pspace = NULL; |
6c95b8df | 445 | |
3f81c18a | 446 | /* The arguments string to use when running. */ |
0550c955 | 447 | char *args = NULL; |
3f81c18a VP |
448 | |
449 | /* The size of elements in argv. */ | |
0550c955 | 450 | int argc = 0; |
3f81c18a VP |
451 | |
452 | /* The vector version of arguments. If ARGC is nonzero, | |
453 | then we must compute ARGS from this (via the target). | |
454 | This is always coming from main's argv and therefore | |
455 | should never be freed. */ | |
0550c955 | 456 | char **argv = NULL; |
3f81c18a | 457 | |
d092c5a2 SDJ |
458 | /* The current working directory that will be used when starting |
459 | this inferior. */ | |
460 | gdb::unique_xmalloc_ptr<char> cwd; | |
461 | ||
e671cd59 PA |
462 | /* The terminal state as set by the last target_terminal::terminal_* |
463 | call. */ | |
464 | target_terminal_state terminal_state = target_terminal_state::is_ours; | |
465 | ||
3f81c18a VP |
466 | /* Environment to use for running inferior, |
467 | in format described in environ.h. */ | |
9a6c7d9c | 468 | gdb_environ environment; |
3f81c18a | 469 | |
0550c955 PA |
470 | /* True if this child process was attached rather than forked. */ |
471 | bool attach_flag = false; | |
181e7f93 | 472 | |
6c95b8df PA |
473 | /* If this inferior is a vfork child, then this is the pointer to |
474 | its vfork parent, if GDB is still attached to it. */ | |
0550c955 | 475 | inferior *vfork_parent = NULL; |
6c95b8df PA |
476 | |
477 | /* If this process is a vfork parent, this is the pointer to the | |
478 | child. Since a vfork parent is left frozen by the kernel until | |
479 | the child execs or exits, a process can only have one vfork child | |
480 | at a given time. */ | |
0550c955 | 481 | inferior *vfork_child = NULL; |
6c95b8df PA |
482 | |
483 | /* True if this inferior should be detached when it's vfork sibling | |
484 | exits or execs. */ | |
0550c955 | 485 | bool pending_detach = false; |
6c95b8df PA |
486 | |
487 | /* True if this inferior is a vfork parent waiting for a vfork child | |
488 | not under our control to be done with the shared memory region, | |
489 | either by exiting or execing. */ | |
0550c955 | 490 | bool waiting_for_vfork_done = false; |
6c95b8df | 491 | |
24291992 | 492 | /* True if we're in the process of detaching from this inferior. */ |
9bcb1f16 | 493 | bool detaching = false; |
24291992 | 494 | |
e0ba6746 PA |
495 | /* What is left to do for an execution command after any thread of |
496 | this inferior stops. For continuations associated with a | |
497 | specific thread, see `struct thread_info'. */ | |
0550c955 | 498 | continuation *continuations = NULL; |
e0ba6746 | 499 | |
6efcd9a8 PA |
500 | /* True if setup_inferior wasn't called for this inferior yet. |
501 | Until that is done, we must not access inferior memory or | |
502 | registers, as we haven't determined the target | |
503 | architecture/description. */ | |
0550c955 | 504 | bool needs_setup = false; |
6efcd9a8 | 505 | |
b77209e0 | 506 | /* Private data used by the target vector implementation. */ |
089354bb | 507 | std::unique_ptr<private_inferior> priv; |
a96d9b2e | 508 | |
8cf64490 TT |
509 | /* HAS_EXIT_CODE is true if the inferior exited with an exit code. |
510 | In this case, the EXIT_CODE field is also valid. */ | |
0550c955 PA |
511 | bool has_exit_code = false; |
512 | LONGEST exit_code = 0; | |
8cf64490 | 513 | |
7dcd53a0 | 514 | /* Default flags to pass to the symbol reading functions. These are |
b15cc25c | 515 | used whenever a new objfile is created. */ |
0550c955 | 516 | symfile_add_flags symfile_flags = 0; |
7dcd53a0 | 517 | |
6ecd4729 PA |
518 | /* Info about an inferior's target description (if it's fetched; the |
519 | user supplied description's filename, if any; etc.). */ | |
0550c955 | 520 | target_desc_info *tdesc_info = NULL; |
6ecd4729 PA |
521 | |
522 | /* The architecture associated with the inferior through the | |
523 | connection to the target. | |
524 | ||
525 | The architecture vector provides some information that is really | |
526 | a property of the inferior, accessed through a particular target: | |
527 | ptrace operations; the layout of certain RSP packets; the | |
528 | solib_ops vector; etc. To differentiate architecture accesses to | |
529 | per-inferior/target properties from | |
530 | per-thread/per-frame/per-objfile properties, accesses to | |
531 | per-inferior/target properties should be made through | |
532 | this gdbarch. */ | |
0550c955 | 533 | struct gdbarch *gdbarch = NULL; |
6ecd4729 | 534 | |
d20172fc SM |
535 | /* Data related to displaced stepping. */ |
536 | displaced_step_inferior_state displaced_step_state; | |
537 | ||
6c95b8df | 538 | /* Per inferior data-pointers required by other GDB modules. */ |
8e260fc0 | 539 | REGISTRY_FIELDS; |
5b6d1e4f PA |
540 | |
541 | private: | |
542 | /* The inferior's target stack. */ | |
543 | target_stack m_target_stack; | |
05779d57 PA |
544 | |
545 | /* The name of terminal device to use for I/O. */ | |
546 | gdb::unique_xmalloc_ptr<char> m_terminal; | |
b77209e0 PA |
547 | }; |
548 | ||
6c95b8df PA |
549 | /* Keep a registry of per-inferior data-pointers required by other GDB |
550 | modules. */ | |
551 | ||
8e260fc0 | 552 | DECLARE_REGISTRY (inferior); |
6c95b8df | 553 | |
b77209e0 PA |
554 | /* Add an inferior to the inferior list, print a message that a new |
555 | inferior is found, and return the pointer to the new inferior. | |
556 | Caller may use this pointer to initialize the private inferior | |
557 | data. */ | |
558 | extern struct inferior *add_inferior (int pid); | |
559 | ||
560 | /* Same as add_inferior, but don't print new inferior notifications to | |
561 | the CLI. */ | |
562 | extern struct inferior *add_inferior_silent (int pid); | |
563 | ||
7a41607e | 564 | extern void delete_inferior (struct inferior *todel); |
b77209e0 PA |
565 | |
566 | /* Delete an existing inferior list entry, due to inferior detaching. */ | |
bc09b0c1 SM |
567 | extern void detach_inferior (inferior *inf); |
568 | ||
00431a78 | 569 | extern void exit_inferior (inferior *inf); |
b77209e0 | 570 | |
00431a78 | 571 | extern void exit_inferior_silent (inferior *inf); |
6c95b8df PA |
572 | |
573 | extern void exit_inferior_num_silent (int num); | |
574 | ||
575 | extern void inferior_appeared (struct inferior *inf, int pid); | |
576 | ||
5b6d1e4f PA |
577 | /* Search function to lookup an inferior of TARG by target 'pid'. */ |
578 | extern struct inferior *find_inferior_pid (process_stratum_target *targ, | |
579 | int pid); | |
82f73884 | 580 | |
5b6d1e4f PA |
581 | /* Search function to lookup an inferior of TARG whose pid is equal to |
582 | 'ptid.pid'. */ | |
583 | extern struct inferior *find_inferior_ptid (process_stratum_target *targ, | |
584 | ptid_t ptid); | |
c9657e70 | 585 | |
6c95b8df PA |
586 | /* Search function to lookup an inferior by GDB 'num'. */ |
587 | extern struct inferior *find_inferior_id (int num); | |
588 | ||
32990ada PA |
589 | /* Find an inferior bound to PSPACE, giving preference to the current |
590 | inferior. */ | |
6c95b8df PA |
591 | extern struct inferior * |
592 | find_inferior_for_program_space (struct program_space *pspace); | |
593 | ||
b77209e0 PA |
594 | /* Returns true if the inferior list is not empty. */ |
595 | extern int have_inferiors (void); | |
596 | ||
5b6d1e4f PA |
597 | /* Returns the number of live inferiors running on PROC_TARGET (real |
598 | live processes with execution). */ | |
599 | extern int number_of_live_inferiors (process_stratum_target *proc_target); | |
8020350c | 600 | |
c35b1492 PA |
601 | /* Returns true if there are any live inferiors in the inferior list |
602 | (not cores, not executables, real live processes). */ | |
603 | extern int have_live_inferiors (void); | |
604 | ||
5ed8105e PA |
605 | /* Save/restore the current inferior. */ |
606 | ||
607 | class scoped_restore_current_inferior | |
608 | { | |
609 | public: | |
610 | scoped_restore_current_inferior () | |
611 | : m_saved_inf (current_inferior ()) | |
612 | {} | |
613 | ||
614 | ~scoped_restore_current_inferior () | |
615 | { set_current_inferior (m_saved_inf); } | |
616 | ||
d6541620 | 617 | DISABLE_COPY_AND_ASSIGN (scoped_restore_current_inferior); |
5ed8105e PA |
618 | |
619 | private: | |
620 | inferior *m_saved_inf; | |
621 | }; | |
622 | ||
6c95b8df | 623 | |
c65b3e0d PA |
624 | /* Traverse all inferiors. */ |
625 | ||
08036331 | 626 | extern struct inferior *inferior_list; |
c65b3e0d | 627 | |
08036331 PA |
628 | /* Pull in the internals of the inferiors ranges and iterators. Must |
629 | be done after struct inferior is defined. */ | |
630 | #include "inferior-iter.h" | |
85ad3aaf | 631 | |
08036331 PA |
632 | /* Return a range that can be used to walk over all inferiors |
633 | inferiors, with range-for, safely. I.e., it is safe to delete the | |
634 | currently-iterated inferior. When combined with range-for, this | |
635 | allow convenient patterns like this: | |
85ad3aaf | 636 | |
08036331 PA |
637 | for (inferior *inf : all_inferiors_safe ()) |
638 | if (some_condition ()) | |
639 | delete inf; | |
640 | */ | |
641 | ||
642 | inline all_inferiors_safe_range | |
643 | all_inferiors_safe () | |
644 | { | |
645 | return {}; | |
646 | } | |
647 | ||
648 | /* Returns a range representing all inferiors, suitable to use with | |
649 | range-for, like this: | |
650 | ||
651 | for (inferior *inf : all_inferiors ()) | |
652 | [...] | |
653 | */ | |
654 | ||
655 | inline all_inferiors_range | |
5b6d1e4f | 656 | all_inferiors (process_stratum_target *proc_target = nullptr) |
08036331 | 657 | { |
5b6d1e4f | 658 | return all_inferiors_range (proc_target); |
08036331 PA |
659 | } |
660 | ||
661 | /* Return a range that can be used to walk over all inferiors with PID | |
662 | not zero, with range-for. */ | |
663 | ||
664 | inline all_non_exited_inferiors_range | |
5b6d1e4f | 665 | all_non_exited_inferiors (process_stratum_target *proc_target = nullptr) |
08036331 | 666 | { |
5b6d1e4f | 667 | return all_non_exited_inferiors_range (proc_target); |
08036331 | 668 | } |
6c95b8df PA |
669 | |
670 | /* Prune away automatically added inferiors that aren't required | |
671 | anymore. */ | |
672 | extern void prune_inferiors (void); | |
673 | ||
674 | extern int number_of_inferiors (void); | |
675 | ||
a79b8f6e VP |
676 | extern struct inferior *add_inferior_with_spaces (void); |
677 | ||
4034d0ff AT |
678 | /* Print the current selected inferior. */ |
679 | extern void print_selected_inferior (struct ui_out *uiout); | |
680 | ||
c906108c | 681 | #endif /* !defined (INFERIOR_H) */ |