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 | |
ae123ec6 | 174 | extern void wait_for_inferior (int treat_exec_as_sigtrap); |
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 SS |
190 | |
191 | /* From misc files */ | |
192 | ||
0ab7a791 AC |
193 | extern void default_print_registers_info (struct gdbarch *gdbarch, |
194 | struct ui_file *file, | |
195 | struct frame_info *frame, | |
196 | int regnum, int all); | |
666e11c5 | 197 | |
a14ed312 | 198 | extern void child_terminal_info (char *, int); |
c906108c | 199 | |
a14ed312 | 200 | extern void term_info (char *, int); |
c906108c | 201 | |
a14ed312 | 202 | extern void terminal_ours_for_output (void); |
c906108c | 203 | |
a14ed312 | 204 | extern void terminal_inferior (void); |
c906108c | 205 | |
a14ed312 | 206 | extern void terminal_init_inferior (void); |
c906108c | 207 | |
a14ed312 | 208 | extern void terminal_init_inferior_with_pgrp (int pgrp); |
c906108c | 209 | |
c906108c SS |
210 | /* From fork-child.c */ |
211 | ||
136d6dae VP |
212 | extern int fork_inferior (char *, char *, char **, |
213 | void (*)(void), | |
214 | void (*)(int), void (*)(void), char *); | |
c906108c SS |
215 | |
216 | ||
a14ed312 | 217 | extern void startup_inferior (int); |
c906108c | 218 | |
bd57a748 | 219 | extern char *construct_inferior_arguments (int, char **); |
552c04a7 | 220 | |
c906108c SS |
221 | /* From infrun.c */ |
222 | ||
628fe4e4 JK |
223 | extern int debug_infrun; |
224 | ||
225 | extern int stop_on_solib_events; | |
226 | ||
8621d6a9 | 227 | extern void start_remote (int from_tty); |
c906108c | 228 | |
a14ed312 | 229 | extern void normal_stop (void); |
c906108c | 230 | |
a14ed312 | 231 | extern int signal_stop_state (int); |
c906108c | 232 | |
a14ed312 | 233 | extern int signal_print_state (int); |
c906108c | 234 | |
a14ed312 | 235 | extern int signal_pass_state (int); |
c906108c | 236 | |
a14ed312 | 237 | extern int signal_stop_update (int, int); |
d4f3574e | 238 | |
a14ed312 | 239 | extern int signal_print_update (int, int); |
d4f3574e | 240 | |
a14ed312 | 241 | extern int signal_pass_update (int, int); |
d4f3574e | 242 | |
39f77062 KB |
243 | extern void get_last_target_status(ptid_t *ptid, |
244 | struct target_waitstatus *status); | |
e02bc4cc | 245 | |
6604731b DJ |
246 | extern void follow_inferior_reset_breakpoints (void); |
247 | ||
94cc34af PA |
248 | /* Throw an error indicating the current thread is running. */ |
249 | extern void error_is_running (void); | |
250 | ||
251 | /* Calls error_is_running if the current thread is running. */ | |
252 | extern void ensure_not_running (void); | |
253 | ||
edb3359d DJ |
254 | void set_step_info (struct frame_info *frame, struct symtab_and_line sal); |
255 | ||
c906108c SS |
256 | /* From infcmd.c */ |
257 | ||
281b533b DJ |
258 | extern void post_create_inferior (struct target_ops *, int); |
259 | ||
a14ed312 | 260 | extern void attach_command (char *, int); |
c906108c | 261 | |
a250df2e | 262 | extern char *get_inferior_args (void); |
07091751 | 263 | |
3f81c18a | 264 | extern void set_inferior_args (char *); |
07091751 | 265 | |
552c04a7 TT |
266 | extern void set_inferior_args_vector (int, char **); |
267 | ||
36dc181b EZ |
268 | extern void registers_info (char *, int); |
269 | ||
270 | extern void nexti_command (char *, int); | |
271 | ||
272 | extern void stepi_command (char *, int); | |
273 | ||
77ebaa5a VP |
274 | extern void continue_1 (int all_threads); |
275 | ||
36dc181b EZ |
276 | extern void continue_command (char *, int); |
277 | ||
278 | extern void interrupt_target_command (char *args, int from_tty); | |
279 | ||
77ebaa5a VP |
280 | extern void interrupt_target_1 (int all_threads); |
281 | ||
186c406b TT |
282 | extern void delete_longjmp_breakpoint_cleanup (void *arg); |
283 | ||
6418d433 VP |
284 | extern void detach_command (char *, int); |
285 | ||
1941c569 PA |
286 | extern void notice_new_inferior (ptid_t, int, int); |
287 | ||
c906108c SS |
288 | /* Address at which inferior stopped. */ |
289 | ||
290 | extern CORE_ADDR stop_pc; | |
291 | ||
c906108c SS |
292 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
293 | ||
aa7d318d | 294 | extern enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
295 | |
296 | /* Nonzero if program stopped due to a random (unexpected) signal in | |
297 | inferior process. */ | |
298 | ||
299 | extern int stopped_by_random_signal; | |
300 | ||
a49f981f MS |
301 | /* STEP_OVER_ALL means step over all subroutine calls. |
302 | STEP_OVER_UNDEBUGGABLE means step over calls to undebuggable functions. | |
303 | STEP_OVER_NONE means don't step over any subroutine calls. */ | |
c906108c | 304 | |
5fbbeb29 CF |
305 | enum step_over_calls_kind |
306 | { | |
307 | STEP_OVER_NONE, | |
308 | STEP_OVER_ALL, | |
a4acd088 CF |
309 | STEP_OVER_UNDEBUGGABLE |
310 | }; | |
311 | ||
b0f4b84b DJ |
312 | /* Anything but NO_STOP_QUIETLY means we expect a trap and the caller |
313 | will handle it themselves. STOP_QUIETLY is used when running in | |
314 | the shell before the child program has been exec'd and when running | |
315 | through shared library loading. STOP_QUIETLY_REMOTE is used when | |
316 | setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP | |
317 | except that there is no need to hide a signal. */ | |
c54cfec8 | 318 | |
1777feb0 | 319 | /* It is also used after attach, due to attaching to a process. This |
c54cfec8 EZ |
320 | is a bit trickier. When doing an attach, the kernel stops the |
321 | debuggee with a SIGSTOP. On newer GNU/Linux kernels (>= 2.5.61) | |
1777feb0 | 322 | the handling of SIGSTOP for a ptraced process has changed. Earlier |
c54cfec8 EZ |
323 | versions of the kernel would ignore these SIGSTOPs, while now |
324 | SIGSTOP is treated like any other signal, i.e. it is not muffled. | |
325 | ||
326 | If the gdb user does a 'continue' after the 'attach', gdb passes | |
327 | the global variable stop_signal (which stores the signal from the | |
328 | attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is | |
329 | problematic, because the kernel doesn't ignore such SIGSTOP | |
1777feb0 | 330 | now. I.e. it is reported back to gdb, which in turn presents it |
c54cfec8 EZ |
331 | back to the user. |
332 | ||
333 | To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows | |
334 | gdb to clear the value of stop_signal after the attach, so that it | |
335 | is not passed back down to the kernel. */ | |
336 | ||
337 | enum stop_kind | |
338 | { | |
339 | NO_STOP_QUIETLY = 0, | |
340 | STOP_QUIETLY, | |
b0f4b84b | 341 | STOP_QUIETLY_REMOTE, |
c54cfec8 EZ |
342 | STOP_QUIETLY_NO_SIGSTOP |
343 | }; | |
c906108c | 344 | |
b2175913 MS |
345 | /* Reverse execution. */ |
346 | enum exec_direction_kind | |
347 | { | |
348 | EXEC_FORWARD, | |
349 | EXEC_REVERSE, | |
350 | EXEC_ERROR | |
351 | }; | |
352 | ||
353 | extern enum exec_direction_kind execution_direction; | |
354 | ||
642fd101 DE |
355 | /* Save register contents here when executing a "finish" command or are |
356 | about to pop a stack dummy frame, if-and-only-if proceed_to_finish is set. | |
c906108c SS |
357 | Thus this contains the return value from the called function (assuming |
358 | values are returned in a register). */ | |
359 | ||
72cec141 | 360 | extern struct regcache *stop_registers; |
c906108c | 361 | |
237fc4c9 PA |
362 | /* True if we are debugging displaced stepping. */ |
363 | extern int debug_displaced; | |
364 | ||
365 | /* Dump LEN bytes at BUF in hex to FILE, followed by a newline. */ | |
366 | void displaced_step_dump_bytes (struct ui_file *file, | |
367 | const gdb_byte *buf, size_t len); | |
368 | ||
9a1edae6 | 369 | struct displaced_step_closure *get_displaced_step_closure_by_addr (CORE_ADDR addr); |
c906108c | 370 | \f |
faaf634c | 371 | /* Possible values for gdbarch_call_dummy_location. */ |
c906108c | 372 | #define ON_STACK 1 |
c906108c | 373 | #define AT_ENTRY_POINT 4 |
9710e734 | 374 | #define AT_SYMBOL 5 |
c906108c | 375 | |
c906108c SS |
376 | /* If STARTUP_WITH_SHELL is set, GDB's "run" |
377 | will attempts to start up the debugee under a shell. | |
1777feb0 | 378 | This is in order for argument-expansion to occur. E.g., |
c906108c SS |
379 | (gdb) run * |
380 | The "*" gets expanded by the shell into a list of files. | |
381 | While this is a nice feature, it turns out to interact badly | |
382 | with some of the catch-fork/catch-exec features we have added. | |
383 | In particular, if the shell does any fork/exec's before | |
384 | the exec of the target program, that can confuse GDB. | |
385 | To disable this feature, set STARTUP_WITH_SHELL to 0. | |
386 | To enable this feature, set STARTUP_WITH_SHELL to 1. | |
387 | The catch-exec traps expected during start-up will | |
388 | be 1 if target is not started up with a shell, 2 if it is. | |
389 | - RT | |
390 | If you disable this, you need to decrement | |
1777feb0 | 391 | START_INFERIOR_TRAPS_EXPECTED in tm.h. */ |
c906108c SS |
392 | #define STARTUP_WITH_SHELL 1 |
393 | #if !defined(START_INFERIOR_TRAPS_EXPECTED) | |
394 | #define START_INFERIOR_TRAPS_EXPECTED 2 | |
395 | #endif | |
b77209e0 PA |
396 | |
397 | struct private_inferior; | |
398 | ||
16c381f0 JK |
399 | /* Inferior process specific part of `struct infcall_control_state'. |
400 | ||
401 | Inferior thread counterpart is `struct thread_control_state'. */ | |
402 | ||
403 | struct inferior_control_state | |
404 | { | |
405 | /* See the definition of stop_kind above. */ | |
406 | enum stop_kind stop_soon; | |
407 | }; | |
408 | ||
409 | /* Inferior process specific part of `struct infcall_suspend_state'. | |
410 | ||
411 | Inferior thread counterpart is `struct thread_suspend_state'. */ | |
412 | ||
413 | struct inferior_suspend_state | |
414 | { | |
415 | }; | |
416 | ||
b77209e0 PA |
417 | /* GDB represents the state of each program execution with an object |
418 | called an inferior. An inferior typically corresponds to a process | |
419 | but is more general and applies also to targets that do not have a | |
420 | notion of processes. Each run of an executable creates a new | |
421 | inferior, as does each attachment to an existing process. | |
422 | Inferiors have unique internal identifiers that are different from | |
423 | target process ids. Each inferior may in turn have multiple | |
424 | threads running in it. */ | |
425 | ||
426 | struct inferior | |
427 | { | |
428 | /* Pointer to next inferior in singly-linked list of inferiors. */ | |
429 | struct inferior *next; | |
430 | ||
431 | /* Convenient handle (GDB inferior id). Unique across all | |
432 | inferiors. */ | |
433 | int num; | |
434 | ||
435 | /* Actual target inferior id, usually, a process id. This matches | |
436 | the ptid_t.pid member of threads of this inferior. */ | |
437 | int pid; | |
438 | ||
16c381f0 JK |
439 | /* State of GDB control of inferior process execution. |
440 | See `struct inferior_control_state'. */ | |
441 | struct inferior_control_state control; | |
442 | ||
443 | /* State of inferior process to restore after GDB is done with an inferior | |
444 | call. See `struct inferior_suspend_state'. */ | |
445 | struct inferior_suspend_state suspend; | |
446 | ||
6c95b8df PA |
447 | /* True if this was an auto-created inferior, e.g. created from |
448 | following a fork; false, if this inferior was manually added by | |
449 | the user, and we should not attempt to prune it | |
450 | automatically. */ | |
451 | int removable; | |
452 | ||
453 | /* The address space bound to this inferior. */ | |
454 | struct address_space *aspace; | |
455 | ||
456 | /* The program space bound to this inferior. */ | |
457 | struct program_space *pspace; | |
458 | ||
3f81c18a VP |
459 | /* The arguments string to use when running. */ |
460 | char *args; | |
461 | ||
462 | /* The size of elements in argv. */ | |
463 | int argc; | |
464 | ||
465 | /* The vector version of arguments. If ARGC is nonzero, | |
466 | then we must compute ARGS from this (via the target). | |
467 | This is always coming from main's argv and therefore | |
468 | should never be freed. */ | |
469 | char **argv; | |
470 | ||
471 | /* The name of terminal device to use for I/O. */ | |
472 | char *terminal; | |
473 | ||
474 | /* Environment to use for running inferior, | |
475 | in format described in environ.h. */ | |
476 | struct gdb_environ *environment; | |
477 | ||
181e7f93 PA |
478 | /* Nonzero if this child process was attached rather than |
479 | forked. */ | |
480 | int attach_flag; | |
481 | ||
6c95b8df PA |
482 | /* If this inferior is a vfork child, then this is the pointer to |
483 | its vfork parent, if GDB is still attached to it. */ | |
484 | struct inferior *vfork_parent; | |
485 | ||
486 | /* If this process is a vfork parent, this is the pointer to the | |
487 | child. Since a vfork parent is left frozen by the kernel until | |
488 | the child execs or exits, a process can only have one vfork child | |
489 | at a given time. */ | |
490 | struct inferior *vfork_child; | |
491 | ||
492 | /* True if this inferior should be detached when it's vfork sibling | |
493 | exits or execs. */ | |
494 | int pending_detach; | |
495 | ||
496 | /* True if this inferior is a vfork parent waiting for a vfork child | |
497 | not under our control to be done with the shared memory region, | |
498 | either by exiting or execing. */ | |
499 | int waiting_for_vfork_done; | |
500 | ||
24291992 PA |
501 | /* True if we're in the process of detaching from this inferior. */ |
502 | int detaching; | |
503 | ||
e0ba6746 PA |
504 | /* What is left to do for an execution command after any thread of |
505 | this inferior stops. For continuations associated with a | |
506 | specific thread, see `struct thread_info'. */ | |
507 | struct continuation *continuations; | |
508 | ||
b77209e0 PA |
509 | /* Private data used by the target vector implementation. */ |
510 | struct private_inferior *private; | |
a96d9b2e SDJ |
511 | |
512 | /* We keep a count of the number of times the user has requested a | |
513 | particular syscall to be tracked, and pass this information to the | |
514 | target. This lets capable targets implement filtering directly. */ | |
515 | ||
516 | /* Number of times that "any" syscall is requested. */ | |
517 | int any_syscall_count; | |
518 | ||
519 | /* Count of each system call. */ | |
520 | VEC(int) *syscalls_counts; | |
521 | ||
522 | /* This counts all syscall catch requests, so we can readily determine | |
523 | if any catching is necessary. */ | |
524 | int total_syscalls_count; | |
6c95b8df PA |
525 | |
526 | /* Per inferior data-pointers required by other GDB modules. */ | |
527 | void **data; | |
528 | unsigned num_data; | |
b77209e0 PA |
529 | }; |
530 | ||
6c95b8df PA |
531 | /* Keep a registry of per-inferior data-pointers required by other GDB |
532 | modules. */ | |
533 | ||
534 | extern const struct inferior_data *register_inferior_data (void); | |
535 | extern const struct inferior_data *register_inferior_data_with_cleanup | |
536 | (void (*cleanup) (struct inferior *, void *)); | |
537 | extern void clear_inferior_data (struct inferior *inf); | |
538 | extern void set_inferior_data (struct inferior *inf, | |
539 | const struct inferior_data *data, void *value); | |
540 | extern void *inferior_data (struct inferior *inf, | |
541 | const struct inferior_data *data); | |
542 | ||
b77209e0 PA |
543 | /* Create an empty inferior list, or empty the existing one. */ |
544 | extern void init_inferior_list (void); | |
545 | ||
546 | /* Add an inferior to the inferior list, print a message that a new | |
547 | inferior is found, and return the pointer to the new inferior. | |
548 | Caller may use this pointer to initialize the private inferior | |
549 | data. */ | |
550 | extern struct inferior *add_inferior (int pid); | |
551 | ||
552 | /* Same as add_inferior, but don't print new inferior notifications to | |
553 | the CLI. */ | |
554 | extern struct inferior *add_inferior_silent (int pid); | |
555 | ||
556 | /* Delete an existing inferior list entry, due to inferior exit. */ | |
557 | extern void delete_inferior (int pid); | |
558 | ||
a79b8f6e VP |
559 | extern void delete_inferior_1 (struct inferior *todel, int silent); |
560 | ||
b77209e0 PA |
561 | /* Same as delete_inferior, but don't print new inferior notifications |
562 | to the CLI. */ | |
563 | extern void delete_inferior_silent (int pid); | |
564 | ||
565 | /* Delete an existing inferior list entry, due to inferior detaching. */ | |
566 | extern void detach_inferior (int pid); | |
567 | ||
6c95b8df PA |
568 | extern void exit_inferior (int pid); |
569 | ||
570 | extern void exit_inferior_silent (int pid); | |
571 | ||
572 | extern void exit_inferior_num_silent (int num); | |
573 | ||
574 | extern void inferior_appeared (struct inferior *inf, int pid); | |
575 | ||
82f73884 PA |
576 | /* Get rid of all inferiors. */ |
577 | extern void discard_all_inferiors (void); | |
578 | ||
b77209e0 PA |
579 | /* Translate the integer inferior id (GDB's homegrown id, not the system's) |
580 | into a "pid" (which may be overloaded with extra inferior information). */ | |
581 | extern int gdb_inferior_id_to_pid (int); | |
582 | ||
583 | /* Translate a target 'pid' into the integer inferior id (GDB's | |
584 | homegrown id, not the system's). */ | |
585 | extern int pid_to_gdb_inferior_id (int pid); | |
586 | ||
587 | /* Boolean test for an already-known pid. */ | |
588 | extern int in_inferior_list (int pid); | |
589 | ||
590 | /* Boolean test for an already-known inferior id (GDB's homegrown id, | |
591 | not the system's). */ | |
2c0b251b | 592 | extern int valid_gdb_inferior_id (int num); |
b77209e0 | 593 | |
6c95b8df | 594 | /* Search function to lookup an inferior by target 'pid'. */ |
b77209e0 PA |
595 | extern struct inferior *find_inferior_pid (int pid); |
596 | ||
6c95b8df PA |
597 | /* Search function to lookup an inferior by GDB 'num'. */ |
598 | extern struct inferior *find_inferior_id (int num); | |
599 | ||
600 | /* Find an inferior bound to PSPACE. */ | |
601 | extern struct inferior * | |
602 | find_inferior_for_program_space (struct program_space *pspace); | |
603 | ||
b77209e0 PA |
604 | /* Inferior iterator function. |
605 | ||
606 | Calls a callback function once for each inferior, so long as the | |
607 | callback function returns false. If the callback function returns | |
608 | true, the iteration will end and the current inferior will be | |
609 | returned. This can be useful for implementing a search for a | |
610 | inferior with arbitrary attributes, or for applying some operation | |
611 | to every inferior. | |
612 | ||
613 | It is safe to delete the iterated inferior from the callback. */ | |
614 | extern struct inferior *iterate_over_inferiors (int (*) (struct inferior *, | |
615 | void *), | |
616 | void *); | |
617 | ||
b77209e0 PA |
618 | /* Returns true if the inferior list is not empty. */ |
619 | extern int have_inferiors (void); | |
620 | ||
c35b1492 PA |
621 | /* Returns true if there are any live inferiors in the inferior list |
622 | (not cores, not executables, real live processes). */ | |
623 | extern int have_live_inferiors (void); | |
624 | ||
b77209e0 PA |
625 | /* Return a pointer to the current inferior. It is an error to call |
626 | this if there is no current inferior. */ | |
627 | extern struct inferior *current_inferior (void); | |
628 | ||
6c95b8df PA |
629 | extern void set_current_inferior (struct inferior *); |
630 | ||
631 | extern struct cleanup *save_current_inferior (void); | |
632 | ||
633 | extern struct inferior *inferior_list; | |
634 | ||
635 | /* Prune away automatically added inferiors that aren't required | |
636 | anymore. */ | |
637 | extern void prune_inferiors (void); | |
638 | ||
639 | extern int number_of_inferiors (void); | |
640 | ||
a79b8f6e VP |
641 | extern struct inferior *add_inferior_with_spaces (void); |
642 | ||
d914c394 SS |
643 | extern void update_observer_mode (void); |
644 | ||
c906108c | 645 | #endif /* !defined (INFERIOR_H) */ |