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1 | /* TUI display registers in window. | |
2 | ||
3 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software | |
4 | Foundation, Inc. | |
5 | ||
6 | Contributed by Hewlett-Packard Company. | |
7 | ||
8 | This file is part of GDB. | |
9 | ||
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 | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
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. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | Boston, MA 02111-1307, USA. */ | |
24 | ||
25 | #include "defs.h" | |
26 | #include "tui/tui.h" | |
27 | #include "tui/tui-data.h" | |
28 | #include "symtab.h" | |
29 | #include "gdbtypes.h" | |
30 | #include "gdbcmd.h" | |
31 | #include "frame.h" | |
32 | #include "regcache.h" | |
33 | #include "inferior.h" | |
34 | #include "target.h" | |
35 | #include "gdb_string.h" | |
36 | #include "tui/tui-layout.h" | |
37 | #include "tui/tui-win.h" | |
38 | #include "tui/tui-windata.h" | |
39 | #include "tui/tui-wingeneral.h" | |
40 | #include "tui/tui-file.h" | |
41 | #include "reggroups.h" | |
42 | ||
43 | #include "gdb_curses.h" | |
44 | ||
45 | ||
46 | /***************************************** | |
47 | ** STATIC LOCAL FUNCTIONS FORWARD DECLS ** | |
48 | ******************************************/ | |
49 | static void | |
50 | tui_display_register (struct tui_data_element *data, | |
51 | struct tui_gen_win_info *win_info); | |
52 | ||
53 | static enum tui_status | |
54 | tui_show_register_group (struct gdbarch *gdbarch, struct reggroup *group, | |
55 | struct frame_info *frame, int refresh_values_only); | |
56 | ||
57 | static enum tui_status | |
58 | tui_get_register (struct gdbarch *gdbarch, struct frame_info *frame, | |
59 | struct tui_data_element *data, int regnum, int *changedp); | |
60 | static void tui_register_format | |
61 | (struct gdbarch *, struct frame_info *, struct tui_data_element*, int); | |
62 | static void tui_scroll_regs_forward_command (char *, int); | |
63 | static void tui_scroll_regs_backward_command (char *, int); | |
64 | ||
65 | ||
66 | ||
67 | /***************************************** | |
68 | ** PUBLIC FUNCTIONS ** | |
69 | ******************************************/ | |
70 | ||
71 | /* Answer the number of the last line in the regs display. If there | |
72 | are no registers (-1) is returned. */ | |
73 | int | |
74 | tui_last_regs_line_no (void) | |
75 | { | |
76 | int num_lines = (-1); | |
77 | ||
78 | if (TUI_DATA_WIN->detail.data_display_info.regs_content_count > 0) | |
79 | { | |
80 | num_lines = (TUI_DATA_WIN->detail.data_display_info.regs_content_count / | |
81 | TUI_DATA_WIN->detail.data_display_info.regs_column_count); | |
82 | if (TUI_DATA_WIN->detail.data_display_info.regs_content_count % | |
83 | TUI_DATA_WIN->detail.data_display_info.regs_column_count) | |
84 | num_lines++; | |
85 | } | |
86 | return num_lines; | |
87 | } | |
88 | ||
89 | ||
90 | /* Answer the line number that the register element at element_no is | |
91 | on. If element_no is greater than the number of register elements | |
92 | there are, -1 is returned. */ | |
93 | int | |
94 | tui_line_from_reg_element_no (int element_no) | |
95 | { | |
96 | if (element_no < TUI_DATA_WIN->detail.data_display_info.regs_content_count) | |
97 | { | |
98 | int i, line = (-1); | |
99 | ||
100 | i = 1; | |
101 | while (line == (-1)) | |
102 | { | |
103 | if (element_no < | |
104 | (TUI_DATA_WIN->detail.data_display_info.regs_column_count * i)) | |
105 | line = i - 1; | |
106 | else | |
107 | i++; | |
108 | } | |
109 | ||
110 | return line; | |
111 | } | |
112 | else | |
113 | return (-1); | |
114 | } | |
115 | ||
116 | ||
117 | /* Answer the index of the first element in line_no. If line_no is past | |
118 | the register area (-1) is returned. */ | |
119 | int | |
120 | tui_first_reg_element_no_inline (int line_no) | |
121 | { | |
122 | if ((line_no * TUI_DATA_WIN->detail.data_display_info.regs_column_count) | |
123 | <= TUI_DATA_WIN->detail.data_display_info.regs_content_count) | |
124 | return ((line_no + 1) * | |
125 | TUI_DATA_WIN->detail.data_display_info.regs_column_count) - | |
126 | TUI_DATA_WIN->detail.data_display_info.regs_column_count; | |
127 | else | |
128 | return (-1); | |
129 | } | |
130 | ||
131 | ||
132 | /* Answer the index of the last element in line_no. If line_no is | |
133 | past the register area (-1) is returned. */ | |
134 | int | |
135 | tui_last_reg_element_no_in_line (int line_no) | |
136 | { | |
137 | if ((line_no * TUI_DATA_WIN->detail.data_display_info.regs_column_count) <= | |
138 | TUI_DATA_WIN->detail.data_display_info.regs_content_count) | |
139 | return ((line_no + 1) * | |
140 | TUI_DATA_WIN->detail.data_display_info.regs_column_count) - 1; | |
141 | else | |
142 | return (-1); | |
143 | } | |
144 | ||
145 | /* Show the registers of the given group in the data window | |
146 | and refresh the window. */ | |
147 | void | |
148 | tui_show_registers (struct reggroup *group) | |
149 | { | |
150 | enum tui_status ret = TUI_FAILURE; | |
151 | struct tui_data_info *display_info; | |
152 | ||
153 | /* Make sure the curses mode is enabled. */ | |
154 | tui_enable (); | |
155 | ||
156 | /* Make sure the register window is visible. If not, select an | |
157 | appropriate layout. */ | |
158 | if (TUI_DATA_WIN == NULL || !TUI_DATA_WIN->generic.is_visible) | |
159 | tui_set_layout_for_display_command (DATA_NAME); | |
160 | ||
161 | display_info = &TUI_DATA_WIN->detail.data_display_info; | |
162 | if (group == 0) | |
163 | group = general_reggroup; | |
164 | ||
165 | /* Say that registers should be displayed, even if there is a problem. */ | |
166 | display_info->display_regs = TRUE; | |
167 | ||
168 | if (target_has_registers && target_has_stack && target_has_memory) | |
169 | { | |
170 | ret = tui_show_register_group (current_gdbarch, group, | |
171 | get_current_frame (), | |
172 | group == display_info->current_group); | |
173 | } | |
174 | if (ret == TUI_FAILURE) | |
175 | { | |
176 | display_info->current_group = 0; | |
177 | tui_erase_data_content (NO_REGS_STRING); | |
178 | } | |
179 | else | |
180 | { | |
181 | int i; | |
182 | ||
183 | /* Clear all notation of changed values */ | |
184 | for (i = 0; i < display_info->regs_content_count; i++) | |
185 | { | |
186 | struct tui_gen_win_info *data_item_win; | |
187 | struct tui_win_element *win; | |
188 | ||
189 | data_item_win = &display_info->regs_content[i] | |
190 | ->which_element.data_window; | |
191 | win = (struct tui_win_element *) data_item_win->content[0]; | |
192 | win->which_element.data.highlight = FALSE; | |
193 | } | |
194 | display_info->current_group = group; | |
195 | tui_display_all_data (); | |
196 | } | |
197 | } | |
198 | ||
199 | ||
200 | /* Set the data window to display the registers of the register group | |
201 | using the given frame. Values are refreshed only when refresh_values_only | |
202 | is TRUE. */ | |
203 | ||
204 | static enum tui_status | |
205 | tui_show_register_group (struct gdbarch *gdbarch, struct reggroup *group, | |
206 | struct frame_info *frame, int refresh_values_only) | |
207 | { | |
208 | enum tui_status ret = TUI_FAILURE; | |
209 | int nr_regs; | |
210 | int allocated_here = FALSE; | |
211 | int regnum, pos; | |
212 | char title[80]; | |
213 | struct tui_data_info *display_info = &TUI_DATA_WIN->detail.data_display_info; | |
214 | ||
215 | /* Make a new title showing which group we display. */ | |
216 | snprintf (title, sizeof (title) - 1, "Register group: %s", | |
217 | reggroup_name (group)); | |
218 | xfree (TUI_DATA_WIN->generic.title); | |
219 | TUI_DATA_WIN->generic.title = xstrdup (title); | |
220 | ||
221 | /* See how many registers must be displayed. */ | |
222 | nr_regs = 0; | |
223 | for (regnum = 0; regnum < NUM_REGS + NUM_PSEUDO_REGS; regnum++) | |
224 | { | |
225 | /* Must be in the group and have a name. */ | |
226 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group) | |
227 | && gdbarch_register_name (gdbarch, regnum) != 0) | |
228 | nr_regs++; | |
229 | } | |
230 | ||
231 | if (display_info->regs_content_count > 0 && !refresh_values_only) | |
232 | { | |
233 | tui_free_data_content (display_info->regs_content, | |
234 | display_info->regs_content_count); | |
235 | display_info->regs_content_count = 0; | |
236 | } | |
237 | ||
238 | if (display_info->regs_content_count <= 0) | |
239 | { | |
240 | display_info->regs_content = tui_alloc_content (nr_regs, DATA_WIN); | |
241 | allocated_here = TRUE; | |
242 | refresh_values_only = FALSE; | |
243 | } | |
244 | ||
245 | if (display_info->regs_content != (tui_win_content) NULL) | |
246 | { | |
247 | if (!refresh_values_only || allocated_here) | |
248 | { | |
249 | TUI_DATA_WIN->generic.content = (void*) NULL; | |
250 | TUI_DATA_WIN->generic.content_size = 0; | |
251 | tui_add_content_elements (&TUI_DATA_WIN->generic, nr_regs); | |
252 | display_info->regs_content | |
253 | = (tui_win_content) TUI_DATA_WIN->generic.content; | |
254 | display_info->regs_content_count = nr_regs; | |
255 | } | |
256 | ||
257 | /* Now set the register names and values */ | |
258 | pos = 0; | |
259 | for (regnum = 0; regnum < NUM_REGS + NUM_PSEUDO_REGS; regnum++) | |
260 | { | |
261 | struct tui_gen_win_info *data_item_win; | |
262 | struct tui_data_element *data; | |
263 | const char *name; | |
264 | ||
265 | if (!gdbarch_register_reggroup_p (gdbarch, regnum, group)) | |
266 | continue; | |
267 | ||
268 | name = gdbarch_register_name (gdbarch, regnum); | |
269 | if (name == 0) | |
270 | continue; | |
271 | ||
272 | data_item_win = | |
273 | &display_info->regs_content[pos]->which_element.data_window; | |
274 | data = | |
275 | &((struct tui_win_element *) data_item_win->content[0])->which_element.data; | |
276 | if (data) | |
277 | { | |
278 | if (!refresh_values_only) | |
279 | { | |
280 | data->item_no = regnum; | |
281 | data->name = name; | |
282 | data->highlight = FALSE; | |
283 | } | |
284 | if (data->value == (void*) NULL) | |
285 | data->value = (void*) xmalloc (MAX_REGISTER_SIZE); | |
286 | ||
287 | tui_get_register (gdbarch, frame, data, regnum, 0); | |
288 | } | |
289 | pos++; | |
290 | } | |
291 | ||
292 | TUI_DATA_WIN->generic.content_size = | |
293 | display_info->regs_content_count + display_info->data_content_count; | |
294 | ret = TUI_SUCCESS; | |
295 | } | |
296 | ||
297 | return ret; | |
298 | } | |
299 | ||
300 | /* Function to display the registers in the content from | |
301 | 'start_element_no' until the end of the register content or the end | |
302 | of the display height. No checking for displaying past the end of | |
303 | the registers is done here. */ | |
304 | void | |
305 | tui_display_registers_from (int start_element_no) | |
306 | { | |
307 | struct tui_data_info *display_info = &TUI_DATA_WIN->detail.data_display_info; | |
308 | ||
309 | if (display_info->regs_content != (tui_win_content) NULL && | |
310 | display_info->regs_content_count > 0) | |
311 | { | |
312 | int i = start_element_no; | |
313 | int j, value_chars_wide, item_win_width, cur_y; | |
314 | ||
315 | int max_len = 0; | |
316 | for (i = 0; i < display_info->regs_content_count; i++) | |
317 | { | |
318 | struct tui_data_element *data; | |
319 | struct tui_gen_win_info *data_item_win; | |
320 | char *p; | |
321 | int len; | |
322 | ||
323 | data_item_win = &display_info->regs_content[i]->which_element.data_window; | |
324 | data = &((struct tui_win_element *) | |
325 | data_item_win->content[0])->which_element.data; | |
326 | len = 0; | |
327 | p = data->content; | |
328 | if (p != 0) | |
329 | while (*p) | |
330 | { | |
331 | if (*p++ == '\t') | |
332 | len = 8 * ((len / 8) + 1); | |
333 | else | |
334 | len++; | |
335 | } | |
336 | ||
337 | if (len > max_len) | |
338 | max_len = len; | |
339 | } | |
340 | item_win_width = max_len + 1; | |
341 | i = start_element_no; | |
342 | ||
343 | display_info->regs_column_count = | |
344 | (TUI_DATA_WIN->generic.width - 2) / item_win_width; | |
345 | if (display_info->regs_column_count == 0) | |
346 | display_info->regs_column_count = 1; | |
347 | item_win_width = | |
348 | (TUI_DATA_WIN->generic.width - 2) / display_info->regs_column_count; | |
349 | ||
350 | /* | |
351 | ** Now create each data "sub" window, and write the display into it. | |
352 | */ | |
353 | cur_y = 1; | |
354 | while (i < display_info->regs_content_count && | |
355 | cur_y <= TUI_DATA_WIN->generic.viewport_height) | |
356 | { | |
357 | for (j = 0; | |
358 | (j < display_info->regs_column_count && | |
359 | i < display_info->regs_content_count); j++) | |
360 | { | |
361 | struct tui_gen_win_info * data_item_win; | |
362 | struct tui_data_element * data_element_ptr; | |
363 | ||
364 | /* create the window if necessary */ | |
365 | data_item_win = &display_info->regs_content[i] | |
366 | ->which_element.data_window; | |
367 | data_element_ptr = &((struct tui_win_element *) | |
368 | data_item_win->content[0])->which_element.data; | |
369 | if (data_item_win->handle != (WINDOW*) NULL | |
370 | && (data_item_win->height != 1 | |
371 | || data_item_win->width != item_win_width | |
372 | || data_item_win->origin.x != (item_win_width * j) + 1 | |
373 | || data_item_win->origin.y != cur_y)) | |
374 | { | |
375 | tui_delete_win (data_item_win->handle); | |
376 | data_item_win->handle = 0; | |
377 | } | |
378 | ||
379 | if (data_item_win->handle == (WINDOW *) NULL) | |
380 | { | |
381 | data_item_win->height = 1; | |
382 | data_item_win->width = item_win_width; | |
383 | data_item_win->origin.x = (item_win_width * j) + 1; | |
384 | data_item_win->origin.y = cur_y; | |
385 | tui_make_window (data_item_win, DONT_BOX_WINDOW); | |
386 | scrollok (data_item_win->handle, FALSE); | |
387 | } | |
388 | touchwin (data_item_win->handle); | |
389 | ||
390 | /* Get the printable representation of the register | |
391 | and display it. */ | |
392 | tui_display_register (data_element_ptr, data_item_win); | |
393 | i++; /* next register */ | |
394 | } | |
395 | cur_y++; /* next row; */ | |
396 | } | |
397 | } | |
398 | } | |
399 | ||
400 | ||
401 | /* Function to display the registers in the content from | |
402 | 'start_element_no' on 'start_line_no' until the end of the register | |
403 | content or the end of the display height. This function checks | |
404 | that we won't display off the end of the register display. */ | |
405 | void | |
406 | tui_display_reg_element_at_line (int start_element_no, int start_line_no) | |
407 | { | |
408 | if (TUI_DATA_WIN->detail.data_display_info.regs_content != (tui_win_content) NULL && | |
409 | TUI_DATA_WIN->detail.data_display_info.regs_content_count > 0) | |
410 | { | |
411 | int element_no = start_element_no; | |
412 | ||
413 | if (start_element_no != 0 && start_line_no != 0) | |
414 | { | |
415 | int last_line_no, first_line_on_last_page; | |
416 | ||
417 | last_line_no = tui_last_regs_line_no (); | |
418 | first_line_on_last_page = last_line_no - (TUI_DATA_WIN->generic.height - 2); | |
419 | if (first_line_on_last_page < 0) | |
420 | first_line_on_last_page = 0; | |
421 | /* | |
422 | ** If there is no other data displayed except registers, | |
423 | ** and the element_no causes us to scroll past the end of the | |
424 | ** registers, adjust what element to really start the display at. | |
425 | */ | |
426 | if (TUI_DATA_WIN->detail.data_display_info.data_content_count <= 0 && | |
427 | start_line_no > first_line_on_last_page) | |
428 | element_no = tui_first_reg_element_no_inline (first_line_on_last_page); | |
429 | } | |
430 | tui_display_registers_from (element_no); | |
431 | } | |
432 | } | |
433 | ||
434 | ||
435 | ||
436 | /* Function to display the registers starting at line line_no in the | |
437 | data window. Answers the line number that the display actually | |
438 | started from. If nothing is displayed (-1) is returned. */ | |
439 | int | |
440 | tui_display_registers_from_line (int line_no, int force_display) | |
441 | { | |
442 | if (TUI_DATA_WIN->detail.data_display_info.regs_content_count > 0) | |
443 | { | |
444 | int line, element_no; | |
445 | ||
446 | if (line_no < 0) | |
447 | line = 0; | |
448 | else if (force_display) | |
449 | { /* | |
450 | ** If we must display regs (force_display is true), then make | |
451 | ** sure that we don't display off the end of the registers. | |
452 | */ | |
453 | if (line_no >= tui_last_regs_line_no ()) | |
454 | { | |
455 | if ((line = tui_line_from_reg_element_no ( | |
456 | TUI_DATA_WIN->detail.data_display_info.regs_content_count - 1)) < 0) | |
457 | line = 0; | |
458 | } | |
459 | else | |
460 | line = line_no; | |
461 | } | |
462 | else | |
463 | line = line_no; | |
464 | ||
465 | element_no = tui_first_reg_element_no_inline (line); | |
466 | if (element_no < TUI_DATA_WIN->detail.data_display_info.regs_content_count) | |
467 | tui_display_reg_element_at_line (element_no, line); | |
468 | else | |
469 | line = (-1); | |
470 | ||
471 | return line; | |
472 | } | |
473 | ||
474 | return (-1); /* nothing was displayed */ | |
475 | } | |
476 | ||
477 | ||
478 | /* This function check all displayed registers for changes in values, | |
479 | given a particular frame. If the values have changed, they are | |
480 | updated with the new value and highlighted. */ | |
481 | void | |
482 | tui_check_register_values (struct frame_info *frame) | |
483 | { | |
484 | if (TUI_DATA_WIN != NULL && TUI_DATA_WIN->generic.is_visible) | |
485 | { | |
486 | struct tui_data_info *display_info | |
487 | = &TUI_DATA_WIN->detail.data_display_info; | |
488 | ||
489 | if (display_info->regs_content_count <= 0 && display_info->display_regs) | |
490 | tui_show_registers (display_info->current_group); | |
491 | else | |
492 | { | |
493 | int i, j; | |
494 | ||
495 | for (i = 0; (i < display_info->regs_content_count); i++) | |
496 | { | |
497 | struct tui_data_element *data; | |
498 | struct tui_gen_win_info *data_item_win_ptr; | |
499 | int was_hilighted; | |
500 | ||
501 | data_item_win_ptr = &display_info->regs_content[i]-> | |
502 | which_element.data_window; | |
503 | data = &((struct tui_win_element *) | |
504 | data_item_win_ptr->content[0])->which_element.data; | |
505 | was_hilighted = data->highlight; | |
506 | ||
507 | tui_get_register (current_gdbarch, frame, data, | |
508 | data->item_no, &data->highlight); | |
509 | ||
510 | if (data->highlight || was_hilighted) | |
511 | { | |
512 | tui_display_register (data, data_item_win_ptr); | |
513 | } | |
514 | } | |
515 | } | |
516 | } | |
517 | } | |
518 | ||
519 | /* Display a register in a window. If hilite is TRUE, | |
520 | then the value will be displayed in reverse video */ | |
521 | static void | |
522 | tui_display_register (struct tui_data_element *data, | |
523 | struct tui_gen_win_info *win_info) | |
524 | { | |
525 | if (win_info->handle != (WINDOW *) NULL) | |
526 | { | |
527 | int i; | |
528 | ||
529 | if (data->highlight) | |
530 | wstandout (win_info->handle); | |
531 | ||
532 | wmove (win_info->handle, 0, 0); | |
533 | for (i = 1; i < win_info->width; i++) | |
534 | waddch (win_info->handle, ' '); | |
535 | wmove (win_info->handle, 0, 0); | |
536 | if (data->content) | |
537 | waddstr (win_info->handle, data->content); | |
538 | ||
539 | if (data->highlight) | |
540 | wstandend (win_info->handle); | |
541 | tui_refresh_win (win_info); | |
542 | } | |
543 | } | |
544 | ||
545 | static void | |
546 | tui_reg_next_command (char *arg, int from_tty) | |
547 | { | |
548 | if (TUI_DATA_WIN != 0) | |
549 | { | |
550 | struct reggroup *group | |
551 | = TUI_DATA_WIN->detail.data_display_info.current_group; | |
552 | ||
553 | group = reggroup_next (current_gdbarch, group); | |
554 | if (group == 0) | |
555 | group = reggroup_next (current_gdbarch, 0); | |
556 | ||
557 | if (group) | |
558 | tui_show_registers (group); | |
559 | } | |
560 | } | |
561 | ||
562 | static void | |
563 | tui_reg_float_command (char *arg, int from_tty) | |
564 | { | |
565 | tui_show_registers (float_reggroup); | |
566 | } | |
567 | ||
568 | static void | |
569 | tui_reg_general_command (char *arg, int from_tty) | |
570 | { | |
571 | tui_show_registers (general_reggroup); | |
572 | } | |
573 | ||
574 | static void | |
575 | tui_reg_system_command (char *arg, int from_tty) | |
576 | { | |
577 | tui_show_registers (system_reggroup); | |
578 | } | |
579 | ||
580 | static struct cmd_list_element *tuireglist; | |
581 | ||
582 | static void | |
583 | tui_reg_command (char *args, int from_tty) | |
584 | { | |
585 | printf_unfiltered (_("\"tui reg\" must be followed by the name of a " | |
586 | "tui reg command.\n")); | |
587 | help_list (tuireglist, "tui reg ", -1, gdb_stdout); | |
588 | } | |
589 | ||
590 | void | |
591 | _initialize_tui_regs (void) | |
592 | { | |
593 | struct cmd_list_element **tuicmd; | |
594 | ||
595 | tuicmd = tui_get_cmd_list (); | |
596 | ||
597 | add_prefix_cmd ("reg", class_tui, tui_reg_command, | |
598 | "TUI commands to control the register window.", | |
599 | &tuireglist, "tui reg ", 0, | |
600 | tuicmd); | |
601 | ||
602 | add_cmd ("float", class_tui, tui_reg_float_command, | |
603 | _("Display only floating point registers."), | |
604 | &tuireglist); | |
605 | add_cmd ("general", class_tui, tui_reg_general_command, | |
606 | _("Display only general registers."), | |
607 | &tuireglist); | |
608 | add_cmd ("system", class_tui, tui_reg_system_command, | |
609 | _("Display only system registers."), | |
610 | &tuireglist); | |
611 | add_cmd ("next", class_tui, tui_reg_next_command, | |
612 | _("Display next register group."), | |
613 | &tuireglist); | |
614 | ||
615 | if (xdb_commands) | |
616 | { | |
617 | add_com ("fr", class_tui, tui_reg_float_command, | |
618 | "Display only floating point registers\n"); | |
619 | add_com ("gr", class_tui, tui_reg_general_command, | |
620 | "Display only general registers\n"); | |
621 | add_com ("sr", class_tui, tui_reg_system_command, | |
622 | "Display only special registers\n"); | |
623 | add_com ("+r", class_tui, tui_scroll_regs_forward_command, | |
624 | "Scroll the registers window forward\n"); | |
625 | add_com ("-r", class_tui, tui_scroll_regs_backward_command, | |
626 | "Scroll the register window backward\n"); | |
627 | } | |
628 | } | |
629 | ||
630 | ||
631 | /***************************************** | |
632 | ** STATIC LOCAL FUNCTIONS ** | |
633 | ******************************************/ | |
634 | ||
635 | extern int pagination_enabled; | |
636 | ||
637 | static void | |
638 | tui_restore_gdbout (void *ui) | |
639 | { | |
640 | ui_file_delete (gdb_stdout); | |
641 | gdb_stdout = (struct ui_file*) ui; | |
642 | pagination_enabled = 1; | |
643 | } | |
644 | ||
645 | /* Get the register from the frame and make a printable representation | |
646 | of it in the data element. */ | |
647 | static void | |
648 | tui_register_format (struct gdbarch *gdbarch, struct frame_info *frame, | |
649 | struct tui_data_element *data_element, int regnum) | |
650 | { | |
651 | struct ui_file *stream; | |
652 | struct ui_file *old_stdout; | |
653 | const char *name; | |
654 | struct cleanup *cleanups; | |
655 | char *p, *s; | |
656 | int pos; | |
657 | struct type *type = gdbarch_register_type (gdbarch, regnum); | |
658 | ||
659 | name = gdbarch_register_name (gdbarch, regnum); | |
660 | if (name == 0) | |
661 | { | |
662 | return; | |
663 | } | |
664 | ||
665 | pagination_enabled = 0; | |
666 | old_stdout = gdb_stdout; | |
667 | stream = tui_sfileopen (256); | |
668 | gdb_stdout = stream; | |
669 | cleanups = make_cleanup (tui_restore_gdbout, (void*) old_stdout); | |
670 | if (TYPE_VECTOR (type) != 0 && 0) | |
671 | { | |
672 | char buf[MAX_REGISTER_SIZE]; | |
673 | int len; | |
674 | ||
675 | len = register_size (current_gdbarch, regnum); | |
676 | fprintf_filtered (stream, "%-14s ", name); | |
677 | get_frame_register (frame, regnum, buf); | |
678 | print_scalar_formatted (buf, type, 'f', len, stream); | |
679 | } | |
680 | else | |
681 | { | |
682 | gdbarch_print_registers_info (current_gdbarch, stream, | |
683 | frame, regnum, 1); | |
684 | } | |
685 | ||
686 | /* Save formatted output in the buffer. */ | |
687 | p = tui_file_get_strbuf (stream); | |
688 | ||
689 | /* Remove the possible \n. */ | |
690 | s = strrchr (p, '\n'); | |
691 | if (s && s[1] == 0) | |
692 | *s = 0; | |
693 | ||
694 | xfree (data_element->content); | |
695 | data_element->content = xstrdup (p); | |
696 | do_cleanups (cleanups); | |
697 | } | |
698 | ||
699 | /* Get the register value from the given frame and format it for | |
700 | the display. When changep is set, check if the new register value | |
701 | has changed with respect to the previous call. */ | |
702 | static enum tui_status | |
703 | tui_get_register (struct gdbarch *gdbarch, struct frame_info *frame, | |
704 | struct tui_data_element *data, int regnum, int *changedp) | |
705 | { | |
706 | enum tui_status ret = TUI_FAILURE; | |
707 | ||
708 | if (changedp) | |
709 | *changedp = FALSE; | |
710 | if (target_has_registers) | |
711 | { | |
712 | char buf[MAX_REGISTER_SIZE]; | |
713 | ||
714 | get_frame_register (frame, regnum, buf); | |
715 | /* NOTE: cagney/2003-03-13: This is bogus. It is refering to | |
716 | the register cache and not the frame which could have pulled | |
717 | the register value off the stack. */ | |
718 | if (register_cached (regnum) >= 0) | |
719 | { | |
720 | if (changedp) | |
721 | { | |
722 | int size = register_size (gdbarch, regnum); | |
723 | char *old = (char*) data->value; | |
724 | int i; | |
725 | ||
726 | for (i = 0; i < size; i++) | |
727 | if (buf[i] != old[i]) | |
728 | { | |
729 | *changedp = TRUE; | |
730 | old[i] = buf[i]; | |
731 | } | |
732 | } | |
733 | ||
734 | /* Reformat the data content if the value changed. */ | |
735 | if (changedp == 0 || *changedp == TRUE) | |
736 | tui_register_format (gdbarch, frame, data, regnum); | |
737 | ret = TUI_SUCCESS; | |
738 | } | |
739 | } | |
740 | return ret; | |
741 | } | |
742 | ||
743 | static void | |
744 | tui_scroll_regs_forward_command (char *arg, int from_tty) | |
745 | { | |
746 | tui_scroll (FORWARD_SCROLL, TUI_DATA_WIN, 1); | |
747 | } | |
748 | ||
749 | ||
750 | static void | |
751 | tui_scroll_regs_backward_command (char *arg, int from_tty) | |
752 | { | |
753 | tui_scroll (BACKWARD_SCROLL, TUI_DATA_WIN, 1); | |
754 | } |