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b811d2c2 | 1 | /* Copyright (C) 1986-2020 Free Software Foundation, Inc. |
45741a9c PA |
2 | |
3 | This file is part of GDB. | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #ifndef INFRUN_H | |
19 | #define INFRUN_H 1 | |
20 | ||
45741a9c | 21 | #include "symtab.h" |
268a13a5 | 22 | #include "gdbsupport/byte-vector.h" |
45741a9c PA |
23 | |
24 | struct target_waitstatus; | |
25 | struct frame_info; | |
26 | struct address_space; | |
243a9253 | 27 | struct return_value_info; |
5b6d1e4f | 28 | struct process_stratum_target; |
29734269 | 29 | struct thread_info; |
45741a9c PA |
30 | |
31 | /* True if we are debugging run control. */ | |
32 | extern unsigned int debug_infrun; | |
33 | ||
17417fb0 | 34 | /* Print an "infrun" debug statement. */ |
1eb8556f SM |
35 | |
36 | #define infrun_debug_printf(fmt, ...) \ | |
4f0469cd AB |
37 | do \ |
38 | { \ | |
39 | if (debug_infrun) \ | |
40 | debug_prefixed_printf ("infrun", __func__, fmt, ##__VA_ARGS__); \ | |
41 | } \ | |
42 | while (0) | |
1eb8556f | 43 | |
45741a9c PA |
44 | /* Nonzero if we want to give control to the user when we're notified |
45 | of shared library events by the dynamic linker. */ | |
46 | extern int stop_on_solib_events; | |
47 | ||
45741a9c PA |
48 | /* True if execution commands resume all threads of all processes by |
49 | default; otherwise, resume only threads of the current inferior | |
50 | process. */ | |
491144b5 | 51 | extern bool sched_multi; |
45741a9c PA |
52 | |
53 | /* When set, stop the 'step' command if we enter a function which has | |
54 | no line number information. The normal behavior is that we step | |
55 | over such function. */ | |
491144b5 | 56 | extern bool step_stop_if_no_debug; |
45741a9c PA |
57 | |
58 | /* If set, the inferior should be controlled in non-stop mode. In | |
59 | this mode, each thread is controlled independently. Execution | |
60 | commands apply only to the selected thread by default, and stop | |
61 | events stop only the thread that had the event -- the other threads | |
62 | are kept running freely. */ | |
491144b5 | 63 | extern bool non_stop; |
45741a9c PA |
64 | |
65 | /* When set (default), the target should attempt to disable the | |
66 | operating system's address space randomization feature when | |
67 | starting an inferior. */ | |
491144b5 | 68 | extern bool disable_randomization; |
45741a9c | 69 | |
4c2f2a79 PA |
70 | /* Returns a unique identifier for the current stop. This can be used |
71 | to tell whether a command has proceeded the inferior past the | |
72 | current location. */ | |
73 | extern ULONGEST get_stop_id (void); | |
74 | ||
45741a9c PA |
75 | /* Reverse execution. */ |
76 | enum exec_direction_kind | |
77 | { | |
78 | EXEC_FORWARD, | |
79 | EXEC_REVERSE | |
80 | }; | |
81 | ||
170742de PA |
82 | /* The current execution direction. */ |
83 | extern enum exec_direction_kind execution_direction; | |
45741a9c | 84 | |
45741a9c PA |
85 | extern void start_remote (int from_tty); |
86 | ||
70509625 PA |
87 | /* Clear out all variables saying what to do when inferior is |
88 | continued or stepped. First do this, then set the ones you want, | |
89 | then call `proceed'. STEP indicates whether we're preparing for a | |
90 | step/stepi command. */ | |
91 | extern void clear_proceed_status (int step); | |
45741a9c | 92 | |
64ce06e4 | 93 | extern void proceed (CORE_ADDR, enum gdb_signal); |
45741a9c | 94 | |
70509625 | 95 | /* Return a ptid representing the set of threads that we will proceed, |
f3263aa4 PA |
96 | in the perspective of the user/frontend. We may actually resume |
97 | fewer threads at first, e.g., if a thread is stopped at a | |
98 | breakpoint that needs stepping-off, but that should not be visible | |
99 | to the user/frontend, and neither should the frontend/user be | |
100 | allowed to proceed any of the threads that happen to be stopped for | |
101 | internal run control handling, if a previous command wanted them | |
102 | resumed. */ | |
45741a9c PA |
103 | extern ptid_t user_visible_resume_ptid (int step); |
104 | ||
5b6d1e4f PA |
105 | /* Return the process_stratum target that we will proceed, in the |
106 | perspective of the user/frontend. If RESUME_PTID is | |
107 | MINUS_ONE_PTID, then we'll resume all threads of all targets, so | |
108 | the function returns NULL. Otherwise, we'll be resuming a process | |
109 | or thread of the current process, so we return the current | |
110 | inferior's process stratum target. */ | |
111 | extern process_stratum_target *user_visible_resume_target (ptid_t resume_ptid); | |
45741a9c | 112 | |
4c2f2a79 PA |
113 | /* Return control to GDB when the inferior stops for real. Print |
114 | appropriate messages, remove breakpoints, give terminal our modes, | |
115 | and run the stop hook. Returns true if the stop hook proceeded the | |
116 | target, false otherwise. */ | |
117 | extern int normal_stop (void); | |
45741a9c | 118 | |
5b6d1e4f | 119 | /* Return the cached copy of the last target/ptid/waitstatus returned |
ab1ddbcf PA |
120 | by target_wait()/deprecated_target_wait_hook(). The data is |
121 | actually cached by handle_inferior_event(), which gets called | |
122 | immediately after target_wait()/deprecated_target_wait_hook(). */ | |
5b6d1e4f PA |
123 | extern void get_last_target_status (process_stratum_target **target, |
124 | ptid_t *ptid, | |
45741a9c PA |
125 | struct target_waitstatus *status); |
126 | ||
5b6d1e4f PA |
127 | /* Set the cached copy of the last target/ptid/waitstatus. */ |
128 | extern void set_last_target_status (process_stratum_target *target, ptid_t ptid, | |
6efcd9a8 PA |
129 | struct target_waitstatus status); |
130 | ||
ab1ddbcf PA |
131 | /* Clear the cached copy of the last ptid/waitstatus returned by |
132 | target_wait(). */ | |
133 | extern void nullify_last_target_wait_ptid (); | |
134 | ||
6efcd9a8 PA |
135 | /* Stop all threads. Only returns after everything is halted. */ |
136 | extern void stop_all_threads (void); | |
137 | ||
45741a9c PA |
138 | extern void prepare_for_detach (void); |
139 | ||
b1a35af2 | 140 | extern void fetch_inferior_event (); |
45741a9c PA |
141 | |
142 | extern void init_wait_for_inferior (void); | |
143 | ||
144 | extern void insert_step_resume_breakpoint_at_sal (struct gdbarch *, | |
145 | struct symtab_and_line , | |
146 | struct frame_id); | |
147 | ||
45741a9c PA |
148 | /* Returns true if we're trying to step past the instruction at |
149 | ADDRESS in ASPACE. */ | |
150 | extern int stepping_past_instruction_at (struct address_space *aspace, | |
151 | CORE_ADDR address); | |
152 | ||
21edc42f YQ |
153 | /* Returns true if thread whose thread number is THREAD is stepping |
154 | over a breakpoint. */ | |
155 | extern int thread_is_stepping_over_breakpoint (int thread); | |
156 | ||
963f9c80 PA |
157 | /* Returns true if we're trying to step past an instruction that |
158 | triggers a non-steppable watchpoint. */ | |
159 | extern int stepping_past_nonsteppable_watchpoint (void); | |
160 | ||
29734269 SM |
161 | /* Record in TP the frame and location we're currently stepping through. */ |
162 | extern void set_step_info (thread_info *tp, | |
163 | struct frame_info *frame, | |
45741a9c PA |
164 | struct symtab_and_line sal); |
165 | ||
fd664c91 PA |
166 | /* Several print_*_reason helper functions to print why the inferior |
167 | has stopped to the passed in UIOUT. */ | |
168 | ||
169 | /* Signal received, print why the inferior has stopped. */ | |
170 | extern void print_signal_received_reason (struct ui_out *uiout, | |
171 | enum gdb_signal siggnal); | |
172 | ||
173 | /* Print why the inferior has stopped. We are done with a | |
174 | step/next/si/ni command, print why the inferior has stopped. */ | |
175 | extern void print_end_stepping_range_reason (struct ui_out *uiout); | |
176 | ||
177 | /* The inferior was terminated by a signal, print why it stopped. */ | |
178 | extern void print_signal_exited_reason (struct ui_out *uiout, | |
179 | enum gdb_signal siggnal); | |
180 | ||
181 | /* The inferior program is finished, print why it stopped. */ | |
182 | extern void print_exited_reason (struct ui_out *uiout, int exitstatus); | |
183 | ||
184 | /* Reverse execution: target ran out of history info, print why the | |
185 | inferior has stopped. */ | |
186 | extern void print_no_history_reason (struct ui_out *uiout); | |
187 | ||
243a9253 PA |
188 | /* Print the result of a function at the end of a 'finish' command. |
189 | RV points at an object representing the captured return value/type | |
190 | and its position in the value history. */ | |
191 | ||
192 | extern void print_return_value (struct ui_out *uiout, | |
193 | struct return_value_info *rv); | |
194 | ||
195 | /* Print current location without a level number, if we have changed | |
196 | functions or hit a breakpoint. Print source line if we have one. | |
4c7d57e7 TT |
197 | If the execution command captured a return value, print it. If |
198 | DISPLAYS is false, do not call 'do_displays'. */ | |
243a9253 | 199 | |
4c7d57e7 | 200 | extern void print_stop_event (struct ui_out *uiout, bool displays = true); |
45741a9c | 201 | |
221e1a37 PA |
202 | /* Pretty print the results of target_wait, for debugging purposes. */ |
203 | ||
204 | extern void print_target_wait_results (ptid_t waiton_ptid, ptid_t result_ptid, | |
205 | const struct target_waitstatus *ws); | |
206 | ||
45741a9c PA |
207 | extern int signal_stop_state (int); |
208 | ||
209 | extern int signal_print_state (int); | |
210 | ||
211 | extern int signal_pass_state (int); | |
212 | ||
213 | extern int signal_stop_update (int, int); | |
214 | ||
215 | extern int signal_print_update (int, int); | |
216 | ||
217 | extern int signal_pass_update (int, int); | |
218 | ||
219 | extern void update_signals_program_target (void); | |
220 | ||
221 | /* Clear the convenience variables associated with the exit of the | |
222 | inferior. Currently, those variables are $_exitcode and | |
223 | $_exitsignal. */ | |
224 | extern void clear_exit_convenience_vars (void); | |
225 | ||
136821d9 SM |
226 | /* Dump LEN bytes at BUF in hex to a string and return it. */ |
227 | extern std::string displaced_step_dump_bytes (const gdb_byte *buf, size_t len); | |
45741a9c | 228 | |
45741a9c PA |
229 | extern void update_observer_mode (void); |
230 | ||
231 | extern void signal_catch_update (const unsigned int *); | |
232 | ||
233 | /* In some circumstances we allow a command to specify a numeric | |
234 | signal. The idea is to keep these circumstances limited so that | |
235 | users (and scripts) develop portable habits. For comparison, | |
236 | POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a | |
237 | numeric signal at all is obsolescent. We are slightly more lenient | |
238 | and allow 1-15 which should match host signal numbers on most | |
239 | systems. Use of symbolic signal names is strongly encouraged. */ | |
240 | enum gdb_signal gdb_signal_from_command (int num); | |
241 | ||
372316f1 PA |
242 | /* Enables/disables infrun's async event source in the event loop. */ |
243 | extern void infrun_async (int enable); | |
244 | ||
0b333c5e PA |
245 | /* Call infrun's event handler the next time through the event |
246 | loop. */ | |
247 | extern void mark_infrun_async_event_handler (void); | |
248 | ||
28d5518b | 249 | /* The global chain of threads that need to do a step-over operation |
c2829269 | 250 | to get past e.g., a breakpoint. */ |
28d5518b | 251 | extern struct thread_info *global_thread_step_over_chain_head; |
c2829269 | 252 | |
388a7084 PA |
253 | /* Remove breakpoints if possible (usually that means, if everything |
254 | is stopped). On failure, print a message. */ | |
255 | extern void maybe_remove_breakpoints (void); | |
256 | ||
3b12939d PA |
257 | /* If a UI was in sync execution mode, and now isn't, restore its |
258 | prompt (a synchronous execution command has finished, and we're | |
259 | ready for input). */ | |
260 | extern void all_uis_check_sync_execution_done (void); | |
261 | ||
a8836c93 PA |
262 | /* If a UI was in sync execution mode, and hasn't displayed the prompt |
263 | yet, re-disable its prompt (a synchronous execution command was | |
264 | started or re-started). */ | |
265 | extern void all_uis_on_sync_execution_starting (void); | |
266 | ||
45741a9c | 267 | #endif /* INFRUN_H */ |