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2611b1a5 | 1 | /* GDB hooks for TUI. |
f33c6cbf | 2 | |
96ec9981 | 3 | Copyright 2001, 2002, 2003 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 | ||
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
24 | #include "inferior.h" | |
25 | #include "command.h" | |
26 | #include "bfd.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "target.h" | |
30 | #include "gdbcore.h" | |
31 | #include "event-loop.h" | |
2b68e2c5 | 32 | #include "event-top.h" |
2611b1a5 SC |
33 | #include "frame.h" |
34 | #include "breakpoint.h" | |
35 | #include "gdb-events.h" | |
2b68e2c5 SC |
36 | #include "ui-out.h" |
37 | #include "top.h" | |
38 | #include <readline/readline.h> | |
2611b1a5 SC |
39 | #include <unistd.h> |
40 | #include <fcntl.h> | |
41 | ||
42 | #include "tui.h" | |
43 | #include "tuiData.h" | |
44 | #include "tuiLayout.h" | |
45 | #include "tuiIO.h" | |
46 | #include "tuiRegs.h" | |
47 | #include "tuiWin.h" | |
48 | #include "tuiStack.h" | |
49 | #include "tuiDataWin.h" | |
50 | #include "tuiSourceWin.h" | |
51 | ||
96ec9981 DJ |
52 | #ifdef HAVE_NCURSES_H |
53 | #include <ncurses.h> | |
54 | #else | |
55 | #ifdef HAVE_CURSES_H | |
56 | #include <curses.h> | |
57 | #endif | |
58 | #endif | |
59 | ||
2611b1a5 SC |
60 | int tui_target_has_run = 0; |
61 | ||
62 | static void (* tui_target_new_objfile_chain) (struct objfile*); | |
2611b1a5 SC |
63 | |
64 | static void | |
65 | tui_new_objfile_hook (struct objfile* objfile) | |
66 | { | |
67 | if (tui_active) | |
1f393769 | 68 | tui_display_main (); |
2611b1a5 SC |
69 | |
70 | if (tui_target_new_objfile_chain) | |
71 | tui_target_new_objfile_chain (objfile); | |
72 | } | |
73 | ||
74 | static int | |
75 | tui_query_hook (const char * msg, va_list argp) | |
76 | { | |
77 | int retval; | |
78 | int ans2; | |
79 | int answer; | |
80 | ||
81 | /* Automatically answer "yes" if input is not from a terminal. */ | |
82 | if (!input_from_terminal_p ()) | |
83 | return 1; | |
84 | ||
85 | echo (); | |
86 | while (1) | |
87 | { | |
88 | wrap_here (""); /* Flush any buffered output */ | |
89 | gdb_flush (gdb_stdout); | |
90 | ||
91 | vfprintf_filtered (gdb_stdout, msg, argp); | |
92 | printf_filtered ("(y or n) "); | |
93 | ||
94 | wrap_here (""); | |
95 | gdb_flush (gdb_stdout); | |
96 | ||
97 | answer = tui_getc (stdin); | |
98 | clearerr (stdin); /* in case of C-d */ | |
99 | if (answer == EOF) /* C-d */ | |
100 | { | |
101 | retval = 1; | |
102 | break; | |
103 | } | |
104 | /* Eat rest of input line, to EOF or newline */ | |
105 | if (answer != '\n') | |
106 | do | |
107 | { | |
108 | ans2 = tui_getc (stdin); | |
109 | clearerr (stdin); | |
110 | } | |
111 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
112 | ||
113 | if (answer >= 'a') | |
114 | answer -= 040; | |
115 | if (answer == 'Y') | |
116 | { | |
117 | retval = 1; | |
118 | break; | |
119 | } | |
120 | if (answer == 'N') | |
121 | { | |
122 | retval = 0; | |
123 | break; | |
124 | } | |
125 | printf_filtered ("Please answer y or n.\n"); | |
126 | } | |
127 | noecho (); | |
128 | return retval; | |
129 | } | |
130 | ||
131 | /* Prevent recursion of registers_changed_hook(). */ | |
132 | static int tui_refreshing_registers = 0; | |
133 | ||
134 | static void | |
135 | tui_registers_changed_hook (void) | |
136 | { | |
137 | struct frame_info *fi; | |
138 | ||
6e7f8b9c | 139 | fi = deprecated_selected_frame; |
2611b1a5 SC |
140 | if (fi && tui_refreshing_registers == 0) |
141 | { | |
142 | tui_refreshing_registers = 1; | |
143 | #if 0 | |
144 | tuiCheckDataValues (fi); | |
145 | #endif | |
146 | tui_refreshing_registers = 0; | |
147 | } | |
148 | } | |
149 | ||
150 | static void | |
151 | tui_register_changed_hook (int regno) | |
152 | { | |
153 | struct frame_info *fi; | |
154 | ||
6e7f8b9c | 155 | fi = deprecated_selected_frame; |
2611b1a5 SC |
156 | if (fi && tui_refreshing_registers == 0) |
157 | { | |
158 | tui_refreshing_registers = 1; | |
159 | tuiCheckDataValues (fi); | |
160 | tui_refreshing_registers = 0; | |
161 | } | |
162 | } | |
163 | ||
2611b1a5 SC |
164 | /* Breakpoint creation hook. |
165 | Update the screen to show the new breakpoint. */ | |
166 | static void | |
167 | tui_event_create_breakpoint (int number) | |
168 | { | |
00b2bad4 | 169 | tui_update_all_breakpoint_info (); |
2611b1a5 SC |
170 | } |
171 | ||
172 | /* Breakpoint deletion hook. | |
173 | Refresh the screen to update the breakpoint marks. */ | |
174 | static void | |
175 | tui_event_delete_breakpoint (int number) | |
176 | { | |
00b2bad4 | 177 | tui_update_all_breakpoint_info (); |
2611b1a5 SC |
178 | } |
179 | ||
180 | static void | |
181 | tui_event_modify_breakpoint (int number) | |
182 | { | |
00b2bad4 | 183 | tui_update_all_breakpoint_info (); |
2611b1a5 SC |
184 | } |
185 | ||
186 | static void | |
187 | tui_event_default (int number) | |
188 | { | |
189 | ; | |
190 | } | |
191 | ||
192 | static struct gdb_events *tui_old_event_hooks; | |
193 | ||
194 | static struct gdb_events tui_event_hooks = | |
195 | { | |
196 | tui_event_create_breakpoint, | |
197 | tui_event_delete_breakpoint, | |
198 | tui_event_modify_breakpoint, | |
199 | tui_event_default, | |
200 | tui_event_default, | |
201 | tui_event_default | |
202 | }; | |
203 | ||
204 | /* Called when going to wait for the target. | |
205 | Leave curses mode and setup program mode. */ | |
206 | static ptid_t | |
207 | tui_target_wait_hook (ptid_t pid, struct target_waitstatus *status) | |
208 | { | |
209 | ptid_t res; | |
210 | ||
211 | /* Leave tui mode (optional). */ | |
212 | #if 0 | |
213 | if (tui_active) | |
214 | { | |
215 | target_terminal_ours (); | |
216 | endwin (); | |
217 | target_terminal_inferior (); | |
218 | } | |
219 | #endif | |
220 | tui_target_has_run = 1; | |
221 | res = target_wait (pid, status); | |
222 | ||
223 | if (tui_active) | |
224 | { | |
225 | /* TODO: need to refresh (optional). */ | |
226 | } | |
227 | return res; | |
228 | } | |
229 | ||
230 | /* The selected frame has changed. This is happens after a target | |
231 | stop or when the user explicitly changes the frame (up/down/thread/...). */ | |
232 | static void | |
233 | tui_selected_frame_level_changed_hook (int level) | |
234 | { | |
235 | struct frame_info *fi; | |
236 | ||
6e7f8b9c | 237 | fi = deprecated_selected_frame; |
2611b1a5 SC |
238 | /* Ensure that symbols for this frame are read in. Also, determine the |
239 | source language of this frame, and switch to it if desired. */ | |
240 | if (fi) | |
241 | { | |
242 | struct symtab *s; | |
243 | ||
f70a7d61 | 244 | s = find_pc_symtab (get_frame_pc (fi)); |
2611b1a5 SC |
245 | /* elz: this if here fixes the problem with the pc not being displayed |
246 | in the tui asm layout, with no debug symbols. The value of s | |
247 | would be 0 here, and select_source_symtab would abort the | |
248 | command by calling the 'error' function */ | |
249 | if (s) | |
90949d06 SC |
250 | select_source_symtab (s); |
251 | ||
252 | /* Display the frame position (even if there is no symbols). */ | |
253 | tuiShowFrameInfo (fi); | |
2611b1a5 SC |
254 | |
255 | /* Refresh the register window if it's visible. */ | |
256 | if (tui_is_window_visible (DATA_WIN)) | |
257 | { | |
258 | tui_refreshing_registers = 1; | |
259 | tuiCheckDataValues (fi); | |
260 | tui_refreshing_registers = 0; | |
261 | } | |
262 | } | |
263 | } | |
264 | ||
265 | /* Called from print_frame_info to list the line we stopped in. */ | |
266 | static void | |
267 | tui_print_frame_info_listing_hook (struct symtab *s, int line, | |
268 | int stopline, int noerror) | |
269 | { | |
270 | select_source_symtab (s); | |
6e7f8b9c | 271 | tuiShowFrameInfo (deprecated_selected_frame); |
2611b1a5 SC |
272 | } |
273 | ||
cda8ab40 SC |
274 | /* Called when the target process died or is detached. |
275 | Update the status line. */ | |
276 | static void | |
277 | tui_detach_hook (void) | |
278 | { | |
279 | tuiShowFrameInfo (0); | |
280 | tui_display_main (); | |
281 | } | |
282 | ||
2611b1a5 SC |
283 | /* Install the TUI specific hooks. */ |
284 | void | |
285 | tui_install_hooks (void) | |
286 | { | |
287 | target_wait_hook = tui_target_wait_hook; | |
288 | selected_frame_level_changed_hook = tui_selected_frame_level_changed_hook; | |
289 | print_frame_info_listing_hook = tui_print_frame_info_listing_hook; | |
290 | ||
291 | query_hook = tui_query_hook; | |
292 | ||
293 | /* Install the event hooks. */ | |
294 | tui_old_event_hooks = set_gdb_event_hooks (&tui_event_hooks); | |
295 | ||
296 | registers_changed_hook = tui_registers_changed_hook; | |
297 | register_changed_hook = tui_register_changed_hook; | |
cda8ab40 | 298 | detach_hook = tui_detach_hook; |
2611b1a5 SC |
299 | } |
300 | ||
301 | /* Remove the TUI specific hooks. */ | |
302 | void | |
303 | tui_remove_hooks (void) | |
304 | { | |
305 | target_wait_hook = 0; | |
306 | selected_frame_level_changed_hook = 0; | |
307 | print_frame_info_listing_hook = 0; | |
308 | query_hook = 0; | |
309 | registers_changed_hook = 0; | |
310 | register_changed_hook = 0; | |
cda8ab40 | 311 | detach_hook = 0; |
2611b1a5 SC |
312 | |
313 | /* Restore the previous event hooks. */ | |
314 | set_gdb_event_hooks (tui_old_event_hooks); | |
315 | } | |
316 | ||
021e7609 | 317 | void _initialize_tui_hooks (void); |
2b68e2c5 | 318 | |
021e7609 AC |
319 | void |
320 | _initialize_tui_hooks (void) | |
2611b1a5 | 321 | { |
2611b1a5 SC |
322 | /* Install the permanent hooks. */ |
323 | tui_target_new_objfile_chain = target_new_objfile_hook; | |
324 | target_new_objfile_hook = tui_new_objfile_hook; | |
2611b1a5 | 325 | } |