Commit | Line | Data |
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2611b1a5 | 1 | /* GDB hooks for TUI. |
f33c6cbf AC |
2 | |
3 | Copyright 2001, 2002 Free Software Foundation, Inc. | |
2611b1a5 SC |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
f33c6cbf AC |
22 | /* FIXME: cagney/2002-02-28: The GDB coding standard indicates that |
23 | "defs.h" should be included first. Unfortunatly some systems | |
24 | (currently Debian GNU/Linux) include the <stdbool.h> via <curses.h> | |
25 | and they clash with "bfd.h"'s definiton of true/false. The correct | |
26 | fix is to remove true/false from "bfd.h", however, until that | |
27 | happens, hack around it by including "config.h" and <curses.h> | |
28 | first. */ | |
29 | ||
4e8f7a8b DJ |
30 | #include "config.h" |
31 | #ifdef HAVE_NCURSES_H | |
32 | #include <ncurses.h> | |
33 | #else | |
34 | #ifdef HAVE_CURSES_H | |
35 | #include <curses.h> | |
36 | #endif | |
37 | #endif | |
38 | ||
2611b1a5 SC |
39 | #include "defs.h" |
40 | #include "symtab.h" | |
41 | #include "inferior.h" | |
42 | #include "command.h" | |
43 | #include "bfd.h" | |
44 | #include "symfile.h" | |
45 | #include "objfiles.h" | |
46 | #include "target.h" | |
47 | #include "gdbcore.h" | |
48 | #include "event-loop.h" | |
2b68e2c5 | 49 | #include "event-top.h" |
2611b1a5 SC |
50 | #include "frame.h" |
51 | #include "breakpoint.h" | |
52 | #include "gdb-events.h" | |
2b68e2c5 SC |
53 | #include "ui-out.h" |
54 | #include "top.h" | |
55 | #include <readline/readline.h> | |
2611b1a5 SC |
56 | #include <unistd.h> |
57 | #include <fcntl.h> | |
58 | ||
59 | #include "tui.h" | |
60 | #include "tuiData.h" | |
61 | #include "tuiLayout.h" | |
62 | #include "tuiIO.h" | |
63 | #include "tuiRegs.h" | |
64 | #include "tuiWin.h" | |
65 | #include "tuiStack.h" | |
66 | #include "tuiDataWin.h" | |
67 | #include "tuiSourceWin.h" | |
68 | ||
69 | int tui_target_has_run = 0; | |
70 | ||
71 | static void (* tui_target_new_objfile_chain) (struct objfile*); | |
2611b1a5 SC |
72 | |
73 | static void | |
74 | tui_new_objfile_hook (struct objfile* objfile) | |
75 | { | |
76 | if (tui_active) | |
1f393769 | 77 | tui_display_main (); |
2611b1a5 SC |
78 | |
79 | if (tui_target_new_objfile_chain) | |
80 | tui_target_new_objfile_chain (objfile); | |
81 | } | |
82 | ||
83 | static int | |
84 | tui_query_hook (const char * msg, va_list argp) | |
85 | { | |
86 | int retval; | |
87 | int ans2; | |
88 | int answer; | |
89 | ||
90 | /* Automatically answer "yes" if input is not from a terminal. */ | |
91 | if (!input_from_terminal_p ()) | |
92 | return 1; | |
93 | ||
94 | echo (); | |
95 | while (1) | |
96 | { | |
97 | wrap_here (""); /* Flush any buffered output */ | |
98 | gdb_flush (gdb_stdout); | |
99 | ||
100 | vfprintf_filtered (gdb_stdout, msg, argp); | |
101 | printf_filtered ("(y or n) "); | |
102 | ||
103 | wrap_here (""); | |
104 | gdb_flush (gdb_stdout); | |
105 | ||
106 | answer = tui_getc (stdin); | |
107 | clearerr (stdin); /* in case of C-d */ | |
108 | if (answer == EOF) /* C-d */ | |
109 | { | |
110 | retval = 1; | |
111 | break; | |
112 | } | |
113 | /* Eat rest of input line, to EOF or newline */ | |
114 | if (answer != '\n') | |
115 | do | |
116 | { | |
117 | ans2 = tui_getc (stdin); | |
118 | clearerr (stdin); | |
119 | } | |
120 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
121 | ||
122 | if (answer >= 'a') | |
123 | answer -= 040; | |
124 | if (answer == 'Y') | |
125 | { | |
126 | retval = 1; | |
127 | break; | |
128 | } | |
129 | if (answer == 'N') | |
130 | { | |
131 | retval = 0; | |
132 | break; | |
133 | } | |
134 | printf_filtered ("Please answer y or n.\n"); | |
135 | } | |
136 | noecho (); | |
137 | return retval; | |
138 | } | |
139 | ||
140 | /* Prevent recursion of registers_changed_hook(). */ | |
141 | static int tui_refreshing_registers = 0; | |
142 | ||
143 | static void | |
144 | tui_registers_changed_hook (void) | |
145 | { | |
146 | struct frame_info *fi; | |
147 | ||
6e7f8b9c | 148 | fi = deprecated_selected_frame; |
2611b1a5 SC |
149 | if (fi && tui_refreshing_registers == 0) |
150 | { | |
151 | tui_refreshing_registers = 1; | |
152 | #if 0 | |
153 | tuiCheckDataValues (fi); | |
154 | #endif | |
155 | tui_refreshing_registers = 0; | |
156 | } | |
157 | } | |
158 | ||
159 | static void | |
160 | tui_register_changed_hook (int regno) | |
161 | { | |
162 | struct frame_info *fi; | |
163 | ||
6e7f8b9c | 164 | fi = deprecated_selected_frame; |
2611b1a5 SC |
165 | if (fi && tui_refreshing_registers == 0) |
166 | { | |
167 | tui_refreshing_registers = 1; | |
168 | tuiCheckDataValues (fi); | |
169 | tui_refreshing_registers = 0; | |
170 | } | |
171 | } | |
172 | ||
2611b1a5 SC |
173 | /* Breakpoint creation hook. |
174 | Update the screen to show the new breakpoint. */ | |
175 | static void | |
176 | tui_event_create_breakpoint (int number) | |
177 | { | |
00b2bad4 | 178 | tui_update_all_breakpoint_info (); |
2611b1a5 SC |
179 | } |
180 | ||
181 | /* Breakpoint deletion hook. | |
182 | Refresh the screen to update the breakpoint marks. */ | |
183 | static void | |
184 | tui_event_delete_breakpoint (int number) | |
185 | { | |
00b2bad4 | 186 | tui_update_all_breakpoint_info (); |
2611b1a5 SC |
187 | } |
188 | ||
189 | static void | |
190 | tui_event_modify_breakpoint (int number) | |
191 | { | |
00b2bad4 | 192 | tui_update_all_breakpoint_info (); |
2611b1a5 SC |
193 | } |
194 | ||
195 | static void | |
196 | tui_event_default (int number) | |
197 | { | |
198 | ; | |
199 | } | |
200 | ||
201 | static struct gdb_events *tui_old_event_hooks; | |
202 | ||
203 | static struct gdb_events tui_event_hooks = | |
204 | { | |
205 | tui_event_create_breakpoint, | |
206 | tui_event_delete_breakpoint, | |
207 | tui_event_modify_breakpoint, | |
208 | tui_event_default, | |
209 | tui_event_default, | |
210 | tui_event_default | |
211 | }; | |
212 | ||
213 | /* Called when going to wait for the target. | |
214 | Leave curses mode and setup program mode. */ | |
215 | static ptid_t | |
216 | tui_target_wait_hook (ptid_t pid, struct target_waitstatus *status) | |
217 | { | |
218 | ptid_t res; | |
219 | ||
220 | /* Leave tui mode (optional). */ | |
221 | #if 0 | |
222 | if (tui_active) | |
223 | { | |
224 | target_terminal_ours (); | |
225 | endwin (); | |
226 | target_terminal_inferior (); | |
227 | } | |
228 | #endif | |
229 | tui_target_has_run = 1; | |
230 | res = target_wait (pid, status); | |
231 | ||
232 | if (tui_active) | |
233 | { | |
234 | /* TODO: need to refresh (optional). */ | |
235 | } | |
236 | return res; | |
237 | } | |
238 | ||
239 | /* The selected frame has changed. This is happens after a target | |
240 | stop or when the user explicitly changes the frame (up/down/thread/...). */ | |
241 | static void | |
242 | tui_selected_frame_level_changed_hook (int level) | |
243 | { | |
244 | struct frame_info *fi; | |
245 | ||
6e7f8b9c | 246 | fi = deprecated_selected_frame; |
2611b1a5 SC |
247 | /* Ensure that symbols for this frame are read in. Also, determine the |
248 | source language of this frame, and switch to it if desired. */ | |
249 | if (fi) | |
250 | { | |
251 | struct symtab *s; | |
252 | ||
253 | s = find_pc_symtab (fi->pc); | |
254 | /* elz: this if here fixes the problem with the pc not being displayed | |
255 | in the tui asm layout, with no debug symbols. The value of s | |
256 | would be 0 here, and select_source_symtab would abort the | |
257 | command by calling the 'error' function */ | |
258 | if (s) | |
90949d06 SC |
259 | select_source_symtab (s); |
260 | ||
261 | /* Display the frame position (even if there is no symbols). */ | |
262 | tuiShowFrameInfo (fi); | |
2611b1a5 SC |
263 | |
264 | /* Refresh the register window if it's visible. */ | |
265 | if (tui_is_window_visible (DATA_WIN)) | |
266 | { | |
267 | tui_refreshing_registers = 1; | |
268 | tuiCheckDataValues (fi); | |
269 | tui_refreshing_registers = 0; | |
270 | } | |
271 | } | |
272 | } | |
273 | ||
274 | /* Called from print_frame_info to list the line we stopped in. */ | |
275 | static void | |
276 | tui_print_frame_info_listing_hook (struct symtab *s, int line, | |
277 | int stopline, int noerror) | |
278 | { | |
279 | select_source_symtab (s); | |
6e7f8b9c | 280 | tuiShowFrameInfo (deprecated_selected_frame); |
2611b1a5 SC |
281 | } |
282 | ||
cda8ab40 SC |
283 | /* Called when the target process died or is detached. |
284 | Update the status line. */ | |
285 | static void | |
286 | tui_detach_hook (void) | |
287 | { | |
288 | tuiShowFrameInfo (0); | |
289 | tui_display_main (); | |
290 | } | |
291 | ||
2611b1a5 SC |
292 | /* Install the TUI specific hooks. */ |
293 | void | |
294 | tui_install_hooks (void) | |
295 | { | |
296 | target_wait_hook = tui_target_wait_hook; | |
297 | selected_frame_level_changed_hook = tui_selected_frame_level_changed_hook; | |
298 | print_frame_info_listing_hook = tui_print_frame_info_listing_hook; | |
299 | ||
300 | query_hook = tui_query_hook; | |
301 | ||
302 | /* Install the event hooks. */ | |
303 | tui_old_event_hooks = set_gdb_event_hooks (&tui_event_hooks); | |
304 | ||
305 | registers_changed_hook = tui_registers_changed_hook; | |
306 | register_changed_hook = tui_register_changed_hook; | |
cda8ab40 | 307 | detach_hook = tui_detach_hook; |
2611b1a5 SC |
308 | } |
309 | ||
310 | /* Remove the TUI specific hooks. */ | |
311 | void | |
312 | tui_remove_hooks (void) | |
313 | { | |
314 | target_wait_hook = 0; | |
315 | selected_frame_level_changed_hook = 0; | |
316 | print_frame_info_listing_hook = 0; | |
317 | query_hook = 0; | |
318 | registers_changed_hook = 0; | |
319 | register_changed_hook = 0; | |
cda8ab40 | 320 | detach_hook = 0; |
2611b1a5 SC |
321 | |
322 | /* Restore the previous event hooks. */ | |
323 | set_gdb_event_hooks (tui_old_event_hooks); | |
324 | } | |
325 | ||
021e7609 | 326 | void _initialize_tui_hooks (void); |
2b68e2c5 | 327 | |
021e7609 AC |
328 | void |
329 | _initialize_tui_hooks (void) | |
2611b1a5 | 330 | { |
2611b1a5 SC |
331 | /* Install the permanent hooks. */ |
332 | tui_target_new_objfile_chain = target_new_objfile_hook; | |
333 | target_new_objfile_hook = tui_new_objfile_hook; | |
2611b1a5 | 334 | } |