Commit | Line | Data |
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f377b406 SC |
1 | /* General functions for the WDB TUI. |
2 | Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc. | |
3 | Contributed by Hewlett-Packard Company. | |
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. */ | |
c906108c SS |
21 | |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <ctype.h> | |
25 | #include <malloc.h> | |
c906108c SS |
26 | #ifdef HAVE_TERM_H |
27 | #include <term.h> | |
28 | #endif | |
29 | #include <signal.h> | |
30 | #include <fcntl.h> | |
31 | #include <termio.h> | |
32 | #include <setjmp.h> | |
33 | #include "defs.h" | |
34 | #include "gdbcmd.h" | |
35 | #include "tui.h" | |
36 | #include "tuiData.h" | |
37 | #include "tuiLayout.h" | |
38 | #include "tuiIO.h" | |
39 | #include "tuiRegs.h" | |
377c38ea | 40 | #include "tuiStack.h" |
c906108c | 41 | #include "tuiWin.h" |
39db33d6 SC |
42 | #include "readline/readline.h" |
43 | #include "target.h" | |
44 | #include "frame.h" | |
45 | #include "breakpoint.h" | |
46 | ||
47 | /* Tells whether the TUI is active or not. */ | |
48 | int tui_active = 0; | |
49 | static int tui_finish_init = 1; | |
50 | ||
51 | /* Switch the output mode between TUI/standard gdb. */ | |
52 | static int | |
53 | tui_switch_mode (void) | |
c906108c | 54 | { |
39db33d6 | 55 | if (tui_active) |
c906108c | 56 | { |
39db33d6 SC |
57 | tui_disable (); |
58 | printf_filtered ("Left the TUI mode\n"); | |
59 | } | |
60 | else | |
61 | { | |
62 | tui_enable (); | |
63 | printf_filtered ("Entered the TUI mode\n"); | |
c906108c | 64 | } |
c906108c | 65 | |
39db33d6 SC |
66 | /* Clear the readline in case switching occurred in middle of something. */ |
67 | if (rl_end) | |
68 | rl_kill_text (0, rl_end); | |
69 | ||
70 | /* Since we left the curses mode, the terminal mode is restored to | |
71 | some previous state. That state may not be suitable for readline | |
72 | to work correctly (it may be restored in line mode). We force an | |
73 | exit of the current readline so that readline is re-entered and it | |
74 | will be able to setup the terminal for its needs. By re-entering | |
75 | in readline, we also redisplay its prompt in the non-curses mode. */ | |
76 | rl_newline (1, '\n'); | |
77 | return 0; | |
78 | } | |
c906108c | 79 | |
377c38ea SC |
80 | /* Change the TUI layout to show a next layout. |
81 | This function is bound to CTRL-X 2. It is intended to provide | |
82 | a functionality close to the Emacs split-window command. We always | |
83 | show two windows (src+asm), (src+regs) or (asm+regs). */ | |
84 | static int | |
85 | tui_change_windows (void) | |
86 | { | |
87 | if (!tui_active) | |
88 | tui_switch_mode (); | |
89 | ||
90 | if (tui_active) | |
91 | { | |
92 | TuiLayoutType new_layout; | |
93 | TuiRegisterDisplayType regs_type = TUI_UNDEFINED_REGS; | |
94 | ||
95 | new_layout = currentLayout (); | |
96 | ||
97 | /* Select a new layout to have a rolling layout behavior | |
98 | with always two windows (except when undefined). */ | |
99 | switch (new_layout) | |
100 | { | |
101 | case SRC_COMMAND: | |
102 | new_layout = SRC_DISASSEM_COMMAND; | |
103 | break; | |
104 | ||
105 | case DISASSEM_COMMAND: | |
106 | new_layout = SRC_DISASSEM_COMMAND; | |
107 | break; | |
108 | ||
109 | case SRC_DATA_COMMAND: | |
110 | new_layout = SRC_DISASSEM_COMMAND; | |
111 | break; | |
112 | ||
113 | case SRC_DISASSEM_COMMAND: | |
114 | new_layout = DISASSEM_DATA_COMMAND; | |
115 | break; | |
116 | ||
117 | case DISASSEM_DATA_COMMAND: | |
118 | new_layout = SRC_DATA_COMMAND; | |
119 | break; | |
120 | ||
121 | default: | |
122 | new_layout = SRC_COMMAND; | |
123 | break; | |
124 | } | |
125 | tuiSetLayout (new_layout, regs_type); | |
126 | } | |
127 | return 0; | |
128 | } | |
129 | ||
130 | ||
131 | /* Delete the second TUI window to only show one. */ | |
132 | static int | |
133 | tui_delete_other_windows (void) | |
134 | { | |
135 | if (!tui_active) | |
136 | tui_switch_mode (); | |
137 | ||
138 | if (tui_active) | |
139 | { | |
140 | TuiLayoutType new_layout; | |
141 | TuiRegisterDisplayType regs_type = TUI_UNDEFINED_REGS; | |
142 | ||
143 | new_layout = currentLayout (); | |
144 | ||
145 | /* Kill one window. */ | |
146 | switch (new_layout) | |
147 | { | |
148 | case SRC_COMMAND: | |
149 | case SRC_DATA_COMMAND: | |
150 | case SRC_DISASSEM_COMMAND: | |
151 | default: | |
152 | new_layout = SRC_COMMAND; | |
153 | break; | |
154 | ||
155 | case DISASSEM_COMMAND: | |
156 | case DISASSEM_DATA_COMMAND: | |
157 | new_layout = DISASSEM_COMMAND; | |
158 | break; | |
159 | } | |
160 | tuiSetLayout (new_layout, regs_type); | |
161 | } | |
162 | return 0; | |
163 | } | |
164 | ||
39db33d6 SC |
165 | /* Initialize readline and configure the keymap for the switching |
166 | key shortcut. */ | |
c906108c | 167 | void |
39db33d6 | 168 | tui_initialize_readline () |
c906108c | 169 | { |
39db33d6 | 170 | rl_initialize (); |
c906108c | 171 | |
39db33d6 SC |
172 | rl_add_defun ("tui-switch-mode", tui_switch_mode, -1); |
173 | rl_bind_key_in_map ('a', tui_switch_mode, emacs_ctlx_keymap); | |
174 | rl_bind_key_in_map ('A', tui_switch_mode, emacs_ctlx_keymap); | |
175 | rl_bind_key_in_map (CTRL ('A'), tui_switch_mode, emacs_ctlx_keymap); | |
377c38ea SC |
176 | rl_bind_key_in_map ('1', tui_delete_other_windows, emacs_ctlx_keymap); |
177 | rl_bind_key_in_map ('2', tui_change_windows, emacs_ctlx_keymap); | |
39db33d6 | 178 | } |
c906108c | 179 | |
39db33d6 SC |
180 | /* Enter in the tui mode (curses). |
181 | When in normal mode, it installs the tui hooks in gdb, redirects | |
182 | the gdb output, configures the readline to work in tui mode. | |
183 | When in curses mode, it does nothing. */ | |
c906108c | 184 | void |
39db33d6 | 185 | tui_enable (void) |
c906108c | 186 | { |
39db33d6 SC |
187 | if (tui_active) |
188 | return; | |
189 | ||
190 | /* To avoid to initialize curses when gdb starts, there is a defered | |
191 | curses initialization. This initialization is made only once | |
192 | and the first time the curses mode is entered. */ | |
193 | if (tui_finish_init) | |
c906108c | 194 | { |
39db33d6 SC |
195 | WINDOW *w; |
196 | ||
197 | w = initscr (); | |
198 | ||
377c38ea SC |
199 | cbreak (); |
200 | noecho (); | |
39db33d6 SC |
201 | /*timeout (1);*/ |
202 | nodelay(w, FALSE); | |
203 | nl(); | |
204 | keypad (w, TRUE); | |
205 | rl_initialize (); | |
206 | setTermHeightTo (LINES); | |
207 | setTermWidthTo (COLS); | |
208 | def_prog_mode (); | |
209 | ||
210 | tuiSetLocatorContent (0); | |
211 | showLayout (SRC_COMMAND); | |
212 | tuiSetWinFocusTo (srcWin); | |
377c38ea | 213 | keypad (cmdWin->generic.handle, TRUE); |
39db33d6 SC |
214 | wrefresh (cmdWin->generic.handle); |
215 | tui_finish_init = 0; | |
c906108c | 216 | } |
39db33d6 SC |
217 | else |
218 | { | |
219 | /* Save the current gdb setting of the terminal. | |
220 | Curses will restore this state when endwin() is called. */ | |
221 | def_shell_mode (); | |
222 | clearok (stdscr, TRUE); | |
223 | } | |
c906108c | 224 | |
39db33d6 SC |
225 | /* Install the TUI specific hooks. */ |
226 | tui_install_hooks (); | |
c906108c | 227 | |
377c38ea SC |
228 | tui_update_variables (); |
229 | ||
39db33d6 | 230 | tui_setup_io (1); |
c906108c | 231 | |
39db33d6 SC |
232 | tui_version = 1; |
233 | tui_active = 1; | |
234 | refresh (); | |
235 | } | |
236 | ||
237 | /* Leave the tui mode. | |
238 | Remove the tui hooks and configure the gdb output and readline | |
239 | back to their original state. The curses mode is left so that | |
240 | the terminal setting is restored to the point when we entered. */ | |
c906108c | 241 | void |
39db33d6 | 242 | tui_disable (void) |
c906108c | 243 | { |
39db33d6 SC |
244 | if (!tui_active) |
245 | return; | |
c906108c | 246 | |
39db33d6 SC |
247 | /* Remove TUI hooks. */ |
248 | tui_remove_hooks (); | |
c906108c | 249 | |
39db33d6 SC |
250 | /* Leave curses and restore previous gdb terminal setting. */ |
251 | endwin (); | |
c906108c | 252 | |
39db33d6 SC |
253 | /* gdb terminal has changed, update gdb internal copy of it |
254 | so that terminal management with the inferior works. */ | |
255 | tui_setup_io (0); | |
c906108c | 256 | |
39db33d6 SC |
257 | tui_version = 0; |
258 | tui_active = 0; | |
259 | } | |
c906108c | 260 | |
39db33d6 SC |
261 | /* Wrapper on top of free() to ensure that input address |
262 | is greater than 0x0. */ | |
c906108c | 263 | void |
eca6576c | 264 | tuiFree (char *ptr) |
c906108c SS |
265 | { |
266 | if (ptr != (char *) NULL) | |
267 | { | |
b8c9b27d | 268 | xfree (ptr); |
c906108c | 269 | } |
39db33d6 | 270 | } |
c906108c | 271 | |
39db33d6 SC |
272 | /* Determine what the low address will be to display in the TUI's |
273 | disassembly window. This may or may not be the same as the | |
274 | low address input. */ | |
275 | CORE_ADDR | |
276 | tuiGetLowDisassemblyAddress (CORE_ADDR low, CORE_ADDR pc) | |
c906108c SS |
277 | { |
278 | int line; | |
279 | Opaque newLow; | |
280 | ||
39db33d6 SC |
281 | /* Determine where to start the disassembly so that the pc is about in the |
282 | middle of the viewport. */ | |
c906108c SS |
283 | for (line = 0, newLow = pc; |
284 | (newLow > low && | |
285 | line < (tuiDefaultWinViewportHeight (DISASSEM_WIN, | |
286 | DISASSEM_COMMAND) / 2));) | |
287 | { | |
288 | bfd_byte buffer[4]; | |
289 | ||
290 | newLow -= sizeof (bfd_getb32 (buffer)); | |
291 | line++; | |
292 | } | |
293 | ||
294 | return newLow; | |
39db33d6 | 295 | } |
c906108c | 296 | |
c906108c | 297 | void |
eca6576c | 298 | strcat_to_buf (char *buf, int buflen, char *itemToAdd) |
c906108c SS |
299 | { |
300 | if (itemToAdd != (char *) NULL && buf != (char *) NULL) | |
301 | { | |
302 | if ((strlen (buf) + strlen (itemToAdd)) <= buflen) | |
303 | strcat (buf, itemToAdd); | |
304 | else | |
305 | strncat (buf, itemToAdd, (buflen - strlen (buf))); | |
306 | } | |
c906108c SS |
307 | } |
308 | ||
39db33d6 SC |
309 | #if 0 |
310 | /* Solaris <sys/termios.h> defines CTRL. */ | |
311 | #ifndef CTRL | |
312 | #define CTRL(x) (x & ~0140) | |
313 | #endif | |
c906108c | 314 | |
39db33d6 SC |
315 | #define FILEDES 2 |
316 | #define CHK(val, dft) (val<=0 ? dft : val) | |
c906108c SS |
317 | |
318 | static void | |
c906108c | 319 | _tuiReset (void) |
c906108c SS |
320 | { |
321 | struct termio mode; | |
322 | ||
323 | /* | |
c5aa993b JM |
324 | ** reset the teletype mode bits to a sensible state. |
325 | ** Copied tset.c | |
326 | */ | |
c906108c SS |
327 | #if ! defined (USG) && defined (TIOCGETC) |
328 | struct tchars tbuf; | |
329 | #endif /* !USG && TIOCGETC */ | |
330 | #ifdef UCB_NTTY | |
331 | struct ltchars ltc; | |
332 | ||
333 | if (ldisc == NTTYDISC) | |
334 | { | |
335 | ioctl (FILEDES, TIOCGLTC, <c); | |
336 | ltc.t_suspc = CHK (ltc.t_suspc, CTRL ('Z')); | |
337 | ltc.t_dsuspc = CHK (ltc.t_dsuspc, CTRL ('Y')); | |
338 | ltc.t_rprntc = CHK (ltc.t_rprntc, CTRL ('R')); | |
339 | ltc.t_flushc = CHK (ltc.t_flushc, CTRL ('O')); | |
340 | ltc.t_werasc = CHK (ltc.t_werasc, CTRL ('W')); | |
341 | ltc.t_lnextc = CHK (ltc.t_lnextc, CTRL ('V')); | |
342 | ioctl (FILEDES, TIOCSLTC, <c); | |
343 | } | |
344 | #endif /* UCB_NTTY */ | |
345 | #ifndef USG | |
346 | #ifdef TIOCGETC | |
347 | ioctl (FILEDES, TIOCGETC, &tbuf); | |
348 | tbuf.t_intrc = CHK (tbuf.t_intrc, CTRL ('?')); | |
349 | tbuf.t_quitc = CHK (tbuf.t_quitc, CTRL ('\\')); | |
350 | tbuf.t_startc = CHK (tbuf.t_startc, CTRL ('Q')); | |
351 | tbuf.t_stopc = CHK (tbuf.t_stopc, CTRL ('S')); | |
352 | tbuf.t_eofc = CHK (tbuf.t_eofc, CTRL ('D')); | |
353 | /* brkc is left alone */ | |
354 | ioctl (FILEDES, TIOCSETC, &tbuf); | |
355 | #endif /* TIOCGETC */ | |
356 | mode.sg_flags &= ~(RAW | |
357 | #ifdef CBREAK | |
358 | | CBREAK | |
359 | #endif /* CBREAK */ | |
360 | | VTDELAY | ALLDELAY); | |
361 | mode.sg_flags |= XTABS | ECHO | CRMOD | ANYP; | |
c5aa993b | 362 | #else /*USG */ |
c906108c SS |
363 | ioctl (FILEDES, TCGETA, &mode); |
364 | mode.c_cc[VINTR] = CHK (mode.c_cc[VINTR], CTRL ('?')); | |
365 | mode.c_cc[VQUIT] = CHK (mode.c_cc[VQUIT], CTRL ('\\')); | |
366 | mode.c_cc[VEOF] = CHK (mode.c_cc[VEOF], CTRL ('D')); | |
367 | ||
368 | mode.c_iflag &= ~(IGNBRK | PARMRK | INPCK | INLCR | IGNCR | IUCLC | IXOFF); | |
369 | mode.c_iflag |= (BRKINT | ISTRIP | ICRNL | IXON); | |
370 | mode.c_oflag &= ~(OLCUC | OCRNL | ONOCR | ONLRET | OFILL | OFDEL | | |
371 | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY); | |
372 | mode.c_oflag |= (OPOST | ONLCR); | |
373 | mode.c_cflag &= ~(CSIZE | PARODD | CLOCAL); | |
374 | #ifndef hp9000s800 | |
375 | mode.c_cflag |= (CS8 | CREAD); | |
c5aa993b | 376 | #else /*hp9000s800 */ |
c906108c SS |
377 | mode.c_cflag |= (CS8 | CSTOPB | CREAD); |
378 | #endif /* hp9000s800 */ | |
379 | mode.c_lflag &= ~(XCASE | ECHONL | NOFLSH); | |
380 | mode.c_lflag |= (ISIG | ICANON | ECHO | ECHOK); | |
381 | ioctl (FILEDES, TCSETAW, &mode); | |
382 | #endif /* USG */ | |
383 | ||
384 | return; | |
385 | } /* _tuiReset */ | |
39db33d6 SC |
386 | #endif |
387 | ||
1403b519 SC |
388 | |
389 | void | |
390 | tui_show_assembly (CORE_ADDR addr) | |
391 | { | |
392 | tuiAddWinToLayout (DISASSEM_WIN); | |
393 | tuiUpdateSourceWindowsWithAddr (addr); | |
394 | } | |
395 | ||
396 | int | |
397 | tui_is_window_visible (TuiWinType type) | |
398 | { | |
399 | if (tui_version == 0) | |
400 | return 0; | |
401 | ||
402 | if (winList[type] == 0) | |
403 | return 0; | |
404 | ||
405 | return winList[type]->generic.isVisible; | |
406 | } | |
407 | ||
408 | int | |
409 | tui_get_command_dimension (int *width, int *height) | |
410 | { | |
411 | if (!tui_version || !m_winPtrNotNull (cmdWin)) | |
412 | { | |
413 | return 0; | |
414 | } | |
415 | ||
416 | *width = cmdWin->generic.width; | |
417 | *height = cmdWin->generic.height; | |
418 | return 1; | |
419 | } |