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 | |
6aba47ca | 4 | Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
7b6bb8da JB |
5 | 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, |
6 | 2011 Free Software Foundation, Inc. | |
c906108c | 7 | |
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 13 | (at your option) any later version. |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b | 20 | You should have received a copy of the GNU General Public License |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
22 | |
23 | #if !defined (INFERIOR_H) | |
24 | #define INFERIOR_H 1 | |
25 | ||
da3331ec AC |
26 | struct target_waitstatus; |
27 | struct frame_info; | |
28 | struct ui_file; | |
29 | struct type; | |
67a2b77e | 30 | struct gdbarch; |
72cec141 | 31 | struct regcache; |
b77209e0 | 32 | struct ui_out; |
7e1789f5 | 33 | struct terminal_info; |
67a2b77e | 34 | |
c906108c SS |
35 | /* For bpstat. */ |
36 | #include "breakpoint.h" | |
37 | ||
38 | /* For enum target_signal. */ | |
39 | #include "target.h" | |
40 | ||
aa0cd9c1 AC |
41 | /* For struct frame_id. */ |
42 | #include "frame.h" | |
43 | ||
6c95b8df PA |
44 | #include "progspace.h" |
45 | ||
16c381f0 JK |
46 | struct infcall_suspend_state; |
47 | struct infcall_control_state; | |
7a292a7a | 48 | |
16c381f0 JK |
49 | extern struct infcall_suspend_state *save_infcall_suspend_state (void); |
50 | extern struct infcall_control_state *save_infcall_control_state (void); | |
c906108c | 51 | |
16c381f0 JK |
52 | extern void restore_infcall_suspend_state (struct infcall_suspend_state *); |
53 | extern void restore_infcall_control_state (struct infcall_control_state *); | |
b89667eb | 54 | |
16c381f0 JK |
55 | extern struct cleanup *make_cleanup_restore_infcall_suspend_state |
56 | (struct infcall_suspend_state *); | |
57 | extern struct cleanup *make_cleanup_restore_infcall_control_state | |
58 | (struct infcall_control_state *); | |
b89667eb | 59 | |
16c381f0 JK |
60 | extern void discard_infcall_suspend_state (struct infcall_suspend_state *); |
61 | extern void discard_infcall_control_state (struct infcall_control_state *); | |
7a292a7a | 62 | |
16c381f0 JK |
63 | extern struct regcache * |
64 | get_infcall_suspend_state_regcache (struct infcall_suspend_state *); | |
b89667eb | 65 | |
ca6724c1 KB |
66 | /* The -1 ptid, often used to indicate either an error condition |
67 | or a "don't care" condition, i.e, "run all threads." */ | |
68 | extern ptid_t minus_one_ptid; | |
69 | ||
1777feb0 | 70 | /* The null or zero ptid, often used to indicate no process. */ |
ca6724c1 KB |
71 | extern ptid_t null_ptid; |
72 | ||
73 | /* Attempt to find and return an existing ptid with the given PID, LWP, | |
74 | and TID components. If none exists, create a new one and return | |
75 | that. */ | |
76 | ptid_t ptid_build (int pid, long lwp, long tid); | |
77 | ||
1777feb0 | 78 | /* Find/Create a ptid from just a pid. */ |
ca6724c1 KB |
79 | ptid_t pid_to_ptid (int pid); |
80 | ||
1777feb0 | 81 | /* Fetch the pid (process id) component from a ptid. */ |
ca6724c1 KB |
82 | int ptid_get_pid (ptid_t ptid); |
83 | ||
1777feb0 | 84 | /* Fetch the lwp (lightweight process) component from a ptid. */ |
ca6724c1 KB |
85 | long ptid_get_lwp (ptid_t ptid); |
86 | ||
1777feb0 | 87 | /* Fetch the tid (thread id) component from a ptid. */ |
ca6724c1 KB |
88 | long ptid_get_tid (ptid_t ptid); |
89 | ||
1777feb0 | 90 | /* Compare two ptids to see if they are equal. */ |
ca6724c1 KB |
91 | extern int ptid_equal (ptid_t p1, ptid_t p2); |
92 | ||
252fbfc8 PA |
93 | /* Return true if PTID represents a process id. */ |
94 | extern int ptid_is_pid (ptid_t ptid); | |
95 | ||
0723dbf5 PA |
96 | /* Returns true if PTID matches filter FILTER. FILTER can be the wild |
97 | card MINUS_ONE_PTID (all ptid match it); can be a ptid representing | |
98 | a process (ptid_is_pid returns true), in which case, all lwps and | |
99 | threads of that given process match, lwps and threads of other | |
100 | processes do not; or, it can represent a specific thread, in which | |
101 | case, only that thread will match true. PTID must represent a | |
102 | specific LWP or THREAD, it can never be a wild card. */ | |
103 | ||
104 | extern int ptid_match (ptid_t ptid, ptid_t filter); | |
105 | ||
ce696e05 KB |
106 | /* Save value of inferior_ptid so that it may be restored by |
107 | a later call to do_cleanups(). Returns the struct cleanup | |
108 | pointer needed for later doing the cleanup. */ | |
109 | extern struct cleanup * save_inferior_ptid (void); | |
110 | ||
a14ed312 | 111 | extern void set_sigint_trap (void); |
c906108c | 112 | |
a14ed312 | 113 | extern void clear_sigint_trap (void); |
c906108c | 114 | |
3cb3b8df | 115 | /* Set/get file name for default use for standard in/out in the inferior. */ |
c906108c | 116 | |
3cb3b8df BR |
117 | extern void set_inferior_io_terminal (const char *terminal_name); |
118 | extern const char *get_inferior_io_terminal (void); | |
c906108c | 119 | |
39f77062 | 120 | /* Collected pid, tid, etc. of the debugged inferior. When there's |
1777feb0 | 121 | no inferior, PIDGET (inferior_ptid) will be 0. */ |
c906108c | 122 | |
39f77062 | 123 | extern ptid_t inferior_ptid; |
c906108c | 124 | |
43ff13b4 JM |
125 | /* Are we simulating synchronous execution? This is used in async gdb |
126 | to implement the 'run', 'continue' etc commands, which will not | |
1777feb0 | 127 | redisplay the prompt until the execution is actually over. */ |
43ff13b4 JM |
128 | extern int sync_execution; |
129 | ||
1777feb0 | 130 | /* Inferior environment. */ |
c906108c | 131 | |
a14ed312 | 132 | extern void clear_proceed_status (void); |
c906108c | 133 | |
a14ed312 | 134 | extern void proceed (CORE_ADDR, enum target_signal, int); |
c906108c | 135 | |
d4db2f36 PA |
136 | extern int sched_multi; |
137 | ||
5fbbeb29 CF |
138 | /* When set, stop the 'step' command if we enter a function which has |
139 | no line number information. The normal behavior is that we step | |
140 | over such function. */ | |
141 | extern int step_stop_if_no_debug; | |
142 | ||
ad52ddc6 PA |
143 | /* If set, the inferior should be controlled in non-stop mode. In |
144 | this mode, each thread is controlled independently. Execution | |
b021a221 | 145 | commands apply only to the selected thread by default, and stop |
ad52ddc6 PA |
146 | events stop only the thread that had the event -- the other threads |
147 | are kept running freely. */ | |
148 | extern int non_stop; | |
149 | ||
6c95b8df PA |
150 | /* If set (default), when following a fork, GDB will detach from one |
151 | the fork branches, child or parent. Exactly which branch is | |
152 | detached depends on 'set follow-fork-mode' setting. */ | |
153 | extern int detach_fork; | |
154 | ||
a14ed312 | 155 | extern void generic_mourn_inferior (void); |
c906108c | 156 | |
a790ad35 SC |
157 | extern void terminal_save_ours (void); |
158 | ||
a14ed312 | 159 | extern void terminal_ours (void); |
c906108c | 160 | |
9898f801 UW |
161 | extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch, |
162 | struct type *type, | |
b60c417a | 163 | const gdb_byte *buf); |
9898f801 UW |
164 | extern void unsigned_address_to_pointer (struct gdbarch *gdbarch, |
165 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 166 | CORE_ADDR addr); |
9898f801 UW |
167 | extern CORE_ADDR signed_pointer_to_address (struct gdbarch *gdbarch, |
168 | struct type *type, | |
b60c417a | 169 | const gdb_byte *buf); |
9898f801 UW |
170 | extern void address_to_signed_pointer (struct gdbarch *gdbarch, |
171 | struct type *type, gdb_byte *buf, | |
ac2e2ef7 | 172 | CORE_ADDR addr); |
4478b372 | 173 | |
e4c8541f | 174 | extern void wait_for_inferior (void); |
c906108c | 175 | |
24291992 PA |
176 | extern void prepare_for_detach (void); |
177 | ||
a14ed312 | 178 | extern void fetch_inferior_event (void *); |
43ff13b4 | 179 | |
a14ed312 | 180 | extern void init_wait_for_inferior (void); |
c906108c | 181 | |
a14ed312 | 182 | extern void close_exec_file (void); |
c906108c | 183 | |
a14ed312 | 184 | extern void reopen_exec_file (void); |
c906108c SS |
185 | |
186 | /* The `resume' routine should only be called in special circumstances. | |
187 | Normally, use `proceed', which handles a lot of bookkeeping. */ | |
188 | ||
a14ed312 | 189 | extern void resume (int, enum target_signal); |
c906108c | 190 | |
09cee04b PA |
191 | extern ptid_t user_visible_resume_ptid (int step); |
192 | ||
9da8c2a0 PA |
193 | extern void insert_step_resume_breakpoint_at_sal (struct gdbarch *, |
194 | struct symtab_and_line , | |
195 | struct frame_id); | |
196 | ||
c906108c SS |
197 | /* From misc files */ |
198 | ||
0ab7a791 AC |
199 | extern void default_print_registers_info (struct gdbarch *gdbarch, |
200 | struct ui_file *file, | |
201 | struct frame_info *frame, | |
202 | int regnum, int all); | |
666e11c5 | 203 | |
a14ed312 | 204 | extern void child_terminal_info (char *, int); |
c906108c | 205 | |
a14ed312 | 206 | extern void term_info (char *, int); |
c906108c | 207 | |
a14ed312 | 208 | extern void terminal_ours_for_output (void); |
c906108c | 209 | |
a14ed312 | 210 | extern void terminal_inferior (void); |
c906108c | 211 | |
a14ed312 | 212 | extern void terminal_init_inferior (void); |
c906108c | 213 | |
a14ed312 | 214 | extern void terminal_init_inferior_with_pgrp (int pgrp); |
c906108c | 215 | |
c906108c SS |
216 | /* From fork-child.c */ |
217 | ||
136d6dae VP |
218 | extern int fork_inferior (char *, char *, char **, |
219 | void (*)(void), | |
220 | void (*)(int), void (*)(void), char *); | |
c906108c SS |
221 | |
222 | ||
a14ed312 | 223 | extern void startup_inferior (int); |
c906108c | 224 | |
bd57a748 | 225 | extern char *construct_inferior_arguments (int, char **); |
552c04a7 | 226 | |
c906108c SS |
227 | /* From infrun.c */ |
228 | ||
628fe4e4 JK |
229 | extern int debug_infrun; |
230 | ||
231 | extern int stop_on_solib_events; | |
232 | ||
8621d6a9 | 233 | extern void start_remote (int from_tty); |
c906108c | 234 | |
a14ed312 | 235 | extern void normal_stop (void); |
c906108c | 236 | |
a14ed312 | 237 | extern int signal_stop_state (int); |
c906108c | 238 | |
a14ed312 | 239 | extern int signal_print_state (int); |
c906108c | 240 | |
a14ed312 | 241 | extern int signal_pass_state (int); |
c906108c | 242 | |
a14ed312 | 243 | extern int signal_stop_update (int, int); |
d4f3574e | 244 | |
a14ed312 | 245 | extern int signal_print_update (int, int); |
d4f3574e | 246 | |
a14ed312 | 247 | extern int signal_pass_update (int, int); |
d4f3574e | 248 | |
39f77062 KB |
249 | extern void get_last_target_status(ptid_t *ptid, |
250 | struct target_waitstatus *status); | |
e02bc4cc | 251 | |
6604731b DJ |
252 | extern void follow_inferior_reset_breakpoints (void); |
253 | ||
94cc34af PA |
254 | /* Throw an error indicating the current thread is running. */ |
255 | extern void error_is_running (void); | |
256 | ||
257 | /* Calls error_is_running if the current thread is running. */ | |
258 | extern void ensure_not_running (void); | |
259 | ||
edb3359d DJ |
260 | void set_step_info (struct frame_info *frame, struct symtab_and_line sal); |
261 | ||
c906108c SS |
262 | /* From infcmd.c */ |
263 | ||
281b533b DJ |
264 | extern void post_create_inferior (struct target_ops *, int); |
265 | ||
a14ed312 | 266 | extern void attach_command (char *, int); |
c906108c | 267 | |
a250df2e | 268 | extern char *get_inferior_args (void); |
07091751 | 269 | |
3f81c18a | 270 | extern void set_inferior_args (char *); |
07091751 | 271 | |
552c04a7 TT |
272 | extern void set_inferior_args_vector (int, char **); |
273 | ||
36dc181b EZ |
274 | extern void registers_info (char *, int); |
275 | ||
276 | extern void nexti_command (char *, int); | |
277 | ||
278 | extern void stepi_command (char *, int); | |
279 | ||
77ebaa5a VP |
280 | extern void continue_1 (int all_threads); |
281 | ||
36dc181b EZ |
282 | extern void continue_command (char *, int); |
283 | ||
284 | extern void interrupt_target_command (char *args, int from_tty); | |
285 | ||
77ebaa5a VP |
286 | extern void interrupt_target_1 (int all_threads); |
287 | ||
186c406b TT |
288 | extern void delete_longjmp_breakpoint_cleanup (void *arg); |
289 | ||
6418d433 VP |
290 | extern void detach_command (char *, int); |
291 | ||
1941c569 PA |
292 | extern void notice_new_inferior (ptid_t, int, int); |
293 | ||
c906108c SS |
294 | /* Address at which inferior stopped. */ |
295 | ||
296 | extern CORE_ADDR stop_pc; | |
297 | ||
c906108c SS |
298 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
299 | ||
aa7d318d | 300 | extern enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
301 | |
302 | /* Nonzero if program stopped due to a random (unexpected) signal in | |
303 | inferior process. */ | |
304 | ||
305 | extern int stopped_by_random_signal; | |
306 | ||
a49f981f MS |
307 | /* STEP_OVER_ALL means step over all subroutine calls. |
308 | STEP_OVER_UNDEBUGGABLE means step over calls to undebuggable functions. | |
309 | STEP_OVER_NONE means don't step over any subroutine calls. */ | |
c906108c | 310 | |
5fbbeb29 CF |
311 | enum step_over_calls_kind |
312 | { | |
313 | STEP_OVER_NONE, | |
314 | STEP_OVER_ALL, | |
a4acd088 CF |
315 | STEP_OVER_UNDEBUGGABLE |
316 | }; | |
317 | ||
b0f4b84b DJ |
318 | /* Anything but NO_STOP_QUIETLY means we expect a trap and the caller |
319 | will handle it themselves. STOP_QUIETLY is used when running in | |
320 | the shell before the child program has been exec'd and when running | |
321 | through shared library loading. STOP_QUIETLY_REMOTE is used when | |
322 | setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP | |
323 | except that there is no need to hide a signal. */ | |
c54cfec8 | 324 | |
1777feb0 | 325 | /* It is also used after attach, due to attaching to a process. This |
c54cfec8 EZ |
326 | is a bit trickier. When doing an attach, the kernel stops the |
327 | debuggee with a SIGSTOP. On newer GNU/Linux kernels (>= 2.5.61) | |
1777feb0 | 328 | the handling of SIGSTOP for a ptraced process has changed. Earlier |
c54cfec8 EZ |
329 | versions of the kernel would ignore these SIGSTOPs, while now |
330 | SIGSTOP is treated like any other signal, i.e. it is not muffled. | |
331 | ||
332 | If the gdb user does a 'continue' after the 'attach', gdb passes | |
333 | the global variable stop_signal (which stores the signal from the | |
334 | attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is | |
335 | problematic, because the kernel doesn't ignore such SIGSTOP | |
1777feb0 | 336 | now. I.e. it is reported back to gdb, which in turn presents it |
c54cfec8 EZ |
337 | back to the user. |
338 | ||
339 | To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows | |
340 | gdb to clear the value of stop_signal after the attach, so that it | |
341 | is not passed back down to the kernel. */ | |
342 | ||
343 | enum stop_kind | |
344 | { | |
345 | NO_STOP_QUIETLY = 0, | |
346 | STOP_QUIETLY, | |
b0f4b84b | 347 | STOP_QUIETLY_REMOTE, |
c54cfec8 EZ |
348 | STOP_QUIETLY_NO_SIGSTOP |
349 | }; | |
c906108c | 350 | |
b2175913 MS |
351 | /* Reverse execution. */ |
352 | enum exec_direction_kind | |
353 | { | |
354 | EXEC_FORWARD, | |
d8b34453 | 355 | EXEC_REVERSE |
b2175913 MS |
356 | }; |
357 | ||
32231432 PA |
358 | /* The current execution direction. This should only be set to enum |
359 | exec_direction_kind values. It is only an int to make it | |
360 | compatible with make_cleanup_restore_integer. */ | |
361 | extern int execution_direction; | |
b2175913 | 362 | |
642fd101 DE |
363 | /* Save register contents here when executing a "finish" command or are |
364 | about to pop a stack dummy frame, if-and-only-if proceed_to_finish is set. | |
c906108c SS |
365 | Thus this contains the return value from the called function (assuming |
366 | values are returned in a register). */ | |
367 | ||
72cec141 | 368 | extern struct regcache *stop_registers; |
c906108c | 369 | |
237fc4c9 PA |
370 | /* True if we are debugging displaced stepping. */ |
371 | extern int debug_displaced; | |
372 | ||
373 | /* Dump LEN bytes at BUF in hex to FILE, followed by a newline. */ | |
374 | void displaced_step_dump_bytes (struct ui_file *file, | |
375 | const gdb_byte *buf, size_t len); | |
376 | ||
9a1edae6 | 377 | struct displaced_step_closure *get_displaced_step_closure_by_addr (CORE_ADDR addr); |
c906108c | 378 | \f |
faaf634c | 379 | /* Possible values for gdbarch_call_dummy_location. */ |
c906108c | 380 | #define ON_STACK 1 |
c906108c | 381 | #define AT_ENTRY_POINT 4 |
9710e734 | 382 | #define AT_SYMBOL 5 |
c906108c | 383 | |
c906108c SS |
384 | /* If STARTUP_WITH_SHELL is set, GDB's "run" |
385 | will attempts to start up the debugee under a shell. | |
1777feb0 | 386 | This is in order for argument-expansion to occur. E.g., |
c906108c SS |
387 | (gdb) run * |
388 | The "*" gets expanded by the shell into a list of files. | |
389 | While this is a nice feature, it turns out to interact badly | |
390 | with some of the catch-fork/catch-exec features we have added. | |
391 | In particular, if the shell does any fork/exec's before | |
392 | the exec of the target program, that can confuse GDB. | |
393 | To disable this feature, set STARTUP_WITH_SHELL to 0. | |
394 | To enable this feature, set STARTUP_WITH_SHELL to 1. | |
395 | The catch-exec traps expected during start-up will | |
396 | be 1 if target is not started up with a shell, 2 if it is. | |
397 | - RT | |
398 | If you disable this, you need to decrement | |
1777feb0 | 399 | START_INFERIOR_TRAPS_EXPECTED in tm.h. */ |
c906108c SS |
400 | #define STARTUP_WITH_SHELL 1 |
401 | #if !defined(START_INFERIOR_TRAPS_EXPECTED) | |
402 | #define START_INFERIOR_TRAPS_EXPECTED 2 | |
403 | #endif | |
b77209e0 PA |
404 | |
405 | struct private_inferior; | |
406 | ||
16c381f0 JK |
407 | /* Inferior process specific part of `struct infcall_control_state'. |
408 | ||
409 | Inferior thread counterpart is `struct thread_control_state'. */ | |
410 | ||
411 | struct inferior_control_state | |
412 | { | |
413 | /* See the definition of stop_kind above. */ | |
414 | enum stop_kind stop_soon; | |
415 | }; | |
416 | ||
417 | /* Inferior process specific part of `struct infcall_suspend_state'. | |
418 | ||
419 | Inferior thread counterpart is `struct thread_suspend_state'. */ | |
420 | ||
421 | struct inferior_suspend_state | |
422 | { | |
423 | }; | |
424 | ||
b77209e0 PA |
425 | /* GDB represents the state of each program execution with an object |
426 | called an inferior. An inferior typically corresponds to a process | |
427 | but is more general and applies also to targets that do not have a | |
428 | notion of processes. Each run of an executable creates a new | |
429 | inferior, as does each attachment to an existing process. | |
430 | Inferiors have unique internal identifiers that are different from | |
431 | target process ids. Each inferior may in turn have multiple | |
432 | threads running in it. */ | |
433 | ||
434 | struct inferior | |
435 | { | |
436 | /* Pointer to next inferior in singly-linked list of inferiors. */ | |
437 | struct inferior *next; | |
438 | ||
439 | /* Convenient handle (GDB inferior id). Unique across all | |
440 | inferiors. */ | |
441 | int num; | |
442 | ||
443 | /* Actual target inferior id, usually, a process id. This matches | |
444 | the ptid_t.pid member of threads of this inferior. */ | |
445 | int pid; | |
446 | ||
16c381f0 JK |
447 | /* State of GDB control of inferior process execution. |
448 | See `struct inferior_control_state'. */ | |
449 | struct inferior_control_state control; | |
450 | ||
451 | /* State of inferior process to restore after GDB is done with an inferior | |
452 | call. See `struct inferior_suspend_state'. */ | |
453 | struct inferior_suspend_state suspend; | |
454 | ||
6c95b8df PA |
455 | /* True if this was an auto-created inferior, e.g. created from |
456 | following a fork; false, if this inferior was manually added by | |
457 | the user, and we should not attempt to prune it | |
458 | automatically. */ | |
459 | int removable; | |
460 | ||
461 | /* The address space bound to this inferior. */ | |
462 | struct address_space *aspace; | |
463 | ||
464 | /* The program space bound to this inferior. */ | |
465 | struct program_space *pspace; | |
466 | ||
3f81c18a VP |
467 | /* The arguments string to use when running. */ |
468 | char *args; | |
469 | ||
470 | /* The size of elements in argv. */ | |
471 | int argc; | |
472 | ||
473 | /* The vector version of arguments. If ARGC is nonzero, | |
474 | then we must compute ARGS from this (via the target). | |
475 | This is always coming from main's argv and therefore | |
476 | should never be freed. */ | |
477 | char **argv; | |
478 | ||
479 | /* The name of terminal device to use for I/O. */ | |
480 | char *terminal; | |
481 | ||
482 | /* Environment to use for running inferior, | |
483 | in format described in environ.h. */ | |
484 | struct gdb_environ *environment; | |
485 | ||
181e7f93 PA |
486 | /* Nonzero if this child process was attached rather than |
487 | forked. */ | |
488 | int attach_flag; | |
489 | ||
6c95b8df PA |
490 | /* If this inferior is a vfork child, then this is the pointer to |
491 | its vfork parent, if GDB is still attached to it. */ | |
492 | struct inferior *vfork_parent; | |
493 | ||
494 | /* If this process is a vfork parent, this is the pointer to the | |
495 | child. Since a vfork parent is left frozen by the kernel until | |
496 | the child execs or exits, a process can only have one vfork child | |
497 | at a given time. */ | |
498 | struct inferior *vfork_child; | |
499 | ||
500 | /* True if this inferior should be detached when it's vfork sibling | |
501 | exits or execs. */ | |
502 | int pending_detach; | |
503 | ||
504 | /* True if this inferior is a vfork parent waiting for a vfork child | |
505 | not under our control to be done with the shared memory region, | |
506 | either by exiting or execing. */ | |
507 | int waiting_for_vfork_done; | |
508 | ||
24291992 PA |
509 | /* True if we're in the process of detaching from this inferior. */ |
510 | int detaching; | |
511 | ||
e0ba6746 PA |
512 | /* What is left to do for an execution command after any thread of |
513 | this inferior stops. For continuations associated with a | |
514 | specific thread, see `struct thread_info'. */ | |
515 | struct continuation *continuations; | |
516 | ||
b77209e0 PA |
517 | /* Private data used by the target vector implementation. */ |
518 | struct private_inferior *private; | |
a96d9b2e | 519 | |
8cf64490 TT |
520 | /* HAS_EXIT_CODE is true if the inferior exited with an exit code. |
521 | In this case, the EXIT_CODE field is also valid. */ | |
522 | int has_exit_code; | |
523 | LONGEST exit_code; | |
524 | ||
a96d9b2e SDJ |
525 | /* We keep a count of the number of times the user has requested a |
526 | particular syscall to be tracked, and pass this information to the | |
527 | target. This lets capable targets implement filtering directly. */ | |
528 | ||
529 | /* Number of times that "any" syscall is requested. */ | |
530 | int any_syscall_count; | |
531 | ||
532 | /* Count of each system call. */ | |
533 | VEC(int) *syscalls_counts; | |
534 | ||
535 | /* This counts all syscall catch requests, so we can readily determine | |
536 | if any catching is necessary. */ | |
537 | int total_syscalls_count; | |
6c95b8df PA |
538 | |
539 | /* Per inferior data-pointers required by other GDB modules. */ | |
540 | void **data; | |
541 | unsigned num_data; | |
b77209e0 PA |
542 | }; |
543 | ||
6c95b8df PA |
544 | /* Keep a registry of per-inferior data-pointers required by other GDB |
545 | modules. */ | |
546 | ||
547 | extern const struct inferior_data *register_inferior_data (void); | |
548 | extern const struct inferior_data *register_inferior_data_with_cleanup | |
549 | (void (*cleanup) (struct inferior *, void *)); | |
550 | extern void clear_inferior_data (struct inferior *inf); | |
551 | extern void set_inferior_data (struct inferior *inf, | |
552 | const struct inferior_data *data, void *value); | |
553 | extern void *inferior_data (struct inferior *inf, | |
554 | const struct inferior_data *data); | |
555 | ||
b77209e0 PA |
556 | /* Create an empty inferior list, or empty the existing one. */ |
557 | extern void init_inferior_list (void); | |
558 | ||
559 | /* Add an inferior to the inferior list, print a message that a new | |
560 | inferior is found, and return the pointer to the new inferior. | |
561 | Caller may use this pointer to initialize the private inferior | |
562 | data. */ | |
563 | extern struct inferior *add_inferior (int pid); | |
564 | ||
565 | /* Same as add_inferior, but don't print new inferior notifications to | |
566 | the CLI. */ | |
567 | extern struct inferior *add_inferior_silent (int pid); | |
568 | ||
569 | /* Delete an existing inferior list entry, due to inferior exit. */ | |
570 | extern void delete_inferior (int pid); | |
571 | ||
a79b8f6e VP |
572 | extern void delete_inferior_1 (struct inferior *todel, int silent); |
573 | ||
b77209e0 PA |
574 | /* Same as delete_inferior, but don't print new inferior notifications |
575 | to the CLI. */ | |
576 | extern void delete_inferior_silent (int pid); | |
577 | ||
578 | /* Delete an existing inferior list entry, due to inferior detaching. */ | |
579 | extern void detach_inferior (int pid); | |
580 | ||
6c95b8df PA |
581 | extern void exit_inferior (int pid); |
582 | ||
583 | extern void exit_inferior_silent (int pid); | |
584 | ||
585 | extern void exit_inferior_num_silent (int num); | |
586 | ||
587 | extern void inferior_appeared (struct inferior *inf, int pid); | |
588 | ||
82f73884 PA |
589 | /* Get rid of all inferiors. */ |
590 | extern void discard_all_inferiors (void); | |
591 | ||
b77209e0 PA |
592 | /* Translate the integer inferior id (GDB's homegrown id, not the system's) |
593 | into a "pid" (which may be overloaded with extra inferior information). */ | |
594 | extern int gdb_inferior_id_to_pid (int); | |
595 | ||
596 | /* Translate a target 'pid' into the integer inferior id (GDB's | |
597 | homegrown id, not the system's). */ | |
598 | extern int pid_to_gdb_inferior_id (int pid); | |
599 | ||
600 | /* Boolean test for an already-known pid. */ | |
601 | extern int in_inferior_list (int pid); | |
602 | ||
603 | /* Boolean test for an already-known inferior id (GDB's homegrown id, | |
604 | not the system's). */ | |
2c0b251b | 605 | extern int valid_gdb_inferior_id (int num); |
b77209e0 | 606 | |
6c95b8df | 607 | /* Search function to lookup an inferior by target 'pid'. */ |
b77209e0 PA |
608 | extern struct inferior *find_inferior_pid (int pid); |
609 | ||
6c95b8df PA |
610 | /* Search function to lookup an inferior by GDB 'num'. */ |
611 | extern struct inferior *find_inferior_id (int num); | |
612 | ||
613 | /* Find an inferior bound to PSPACE. */ | |
614 | extern struct inferior * | |
615 | find_inferior_for_program_space (struct program_space *pspace); | |
616 | ||
b77209e0 PA |
617 | /* Inferior iterator function. |
618 | ||
619 | Calls a callback function once for each inferior, so long as the | |
620 | callback function returns false. If the callback function returns | |
621 | true, the iteration will end and the current inferior will be | |
622 | returned. This can be useful for implementing a search for a | |
623 | inferior with arbitrary attributes, or for applying some operation | |
624 | to every inferior. | |
625 | ||
626 | It is safe to delete the iterated inferior from the callback. */ | |
627 | extern struct inferior *iterate_over_inferiors (int (*) (struct inferior *, | |
628 | void *), | |
629 | void *); | |
630 | ||
b77209e0 PA |
631 | /* Returns true if the inferior list is not empty. */ |
632 | extern int have_inferiors (void); | |
633 | ||
c35b1492 PA |
634 | /* Returns true if there are any live inferiors in the inferior list |
635 | (not cores, not executables, real live processes). */ | |
636 | extern int have_live_inferiors (void); | |
637 | ||
b77209e0 PA |
638 | /* Return a pointer to the current inferior. It is an error to call |
639 | this if there is no current inferior. */ | |
640 | extern struct inferior *current_inferior (void); | |
641 | ||
6c95b8df PA |
642 | extern void set_current_inferior (struct inferior *); |
643 | ||
644 | extern struct cleanup *save_current_inferior (void); | |
645 | ||
646 | extern struct inferior *inferior_list; | |
647 | ||
648 | /* Prune away automatically added inferiors that aren't required | |
649 | anymore. */ | |
650 | extern void prune_inferiors (void); | |
651 | ||
652 | extern int number_of_inferiors (void); | |
653 | ||
a79b8f6e VP |
654 | extern struct inferior *add_inferior_with_spaces (void); |
655 | ||
d914c394 SS |
656 | extern void update_observer_mode (void); |
657 | ||
c906108c | 658 | #endif /* !defined (INFERIOR_H) */ |