Commit | Line | Data |
---|---|---|
f377b406 | 1 | /* TUI display registers in window. |
f33c6cbf | 2 | |
42a4f53d | 3 | Copyright (C) 1998-2019 Free Software Foundation, Inc. |
f33c6cbf | 4 | |
f377b406 | 5 | Contributed by Hewlett-Packard Company. |
c906108c | 6 | |
f377b406 | 7 | This file is part of GDB. |
c906108c | 8 | |
f377b406 SC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
f377b406 SC |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
e17c207e | 23 | #include "arch-utils.h" |
d7b2e967 AC |
24 | #include "tui/tui.h" |
25 | #include "tui/tui-data.h" | |
c906108c SS |
26 | #include "symtab.h" |
27 | #include "gdbtypes.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "frame.h" | |
bc77de56 | 30 | #include "regcache.h" |
c906108c SS |
31 | #include "inferior.h" |
32 | #include "target.h" | |
d7b2e967 AC |
33 | #include "tui/tui-layout.h" |
34 | #include "tui/tui-win.h" | |
d7b2e967 AC |
35 | #include "tui/tui-wingeneral.h" |
36 | #include "tui/tui-file.h" | |
2c0b251b | 37 | #include "tui/tui-regs.h" |
312809f8 | 38 | #include "tui/tui-io.h" |
10f59415 | 39 | #include "reggroups.h" |
79a45b7d | 40 | #include "valprint.h" |
51f0e40d | 41 | #include "completer.h" |
c906108c | 42 | |
6a83354a | 43 | #include "gdb_curses.h" |
96ec9981 | 44 | |
41bcff7f | 45 | static void tui_display_register (struct tui_data_item_window *data); |
c906108c | 46 | |
e80cd204 TT |
47 | static void tui_show_register_group (tui_data_window *win_info, |
48 | struct reggroup *group, | |
21e1c91e TT |
49 | struct frame_info *frame, |
50 | int refresh_values_only); | |
5eccfcc2 | 51 | |
2cdfa113 TT |
52 | static void tui_get_register (struct frame_info *frame, |
53 | struct tui_data_item_window *data, | |
54 | int regnum, bool *changedp); | |
5eccfcc2 | 55 | |
18ab23af | 56 | /* See tui-regs.h. */ |
0b5ec218 | 57 | |
c906108c | 58 | int |
0b5ec218 | 59 | tui_data_window::last_regs_line_no () const |
c906108c | 60 | { |
d02c80cd | 61 | int num_lines = (-1); |
c906108c | 62 | |
0b5ec218 | 63 | if (!regs_content.empty ()) |
c906108c | 64 | { |
0b5ec218 TT |
65 | num_lines = regs_content.size () / regs_column_count; |
66 | if (regs_content.size () % regs_column_count) | |
6ba8e26f | 67 | num_lines++; |
c906108c | 68 | } |
6ba8e26f | 69 | return num_lines; |
55fb0713 | 70 | } |
c906108c | 71 | |
18ab23af | 72 | /* See tui-regs.h. */ |
c906108c | 73 | |
c906108c | 74 | int |
3b23c5f2 | 75 | tui_data_window::line_from_reg_element_no (int element_no) const |
c906108c | 76 | { |
3b23c5f2 | 77 | if (element_no < regs_content.size ()) |
c906108c SS |
78 | { |
79 | int i, line = (-1); | |
80 | ||
81 | i = 1; | |
82 | while (line == (-1)) | |
83 | { | |
3b23c5f2 | 84 | if (element_no < regs_column_count * i) |
c906108c SS |
85 | line = i - 1; |
86 | else | |
87 | i++; | |
88 | } | |
89 | ||
90 | return line; | |
91 | } | |
92 | else | |
93 | return (-1); | |
55fb0713 | 94 | } |
c906108c | 95 | |
18ab23af | 96 | /* See tui-regs.h. */ |
c906108c | 97 | |
c906108c | 98 | int |
baff0c28 | 99 | tui_data_window::first_reg_element_no_inline (int line_no) const |
c906108c | 100 | { |
baff0c28 TT |
101 | if (line_no * regs_column_count <= regs_content.size ()) |
102 | return ((line_no + 1) * regs_column_count) - regs_column_count; | |
c906108c SS |
103 | else |
104 | return (-1); | |
55fb0713 | 105 | } |
c906108c | 106 | |
0379b883 TT |
107 | /* A helper function to display the register window in the appropriate |
108 | way. */ | |
109 | ||
110 | static void | |
111 | tui_reg_layout () | |
112 | { | |
113 | enum tui_layout_type cur_layout = tui_current_layout (); | |
114 | enum tui_layout_type new_layout; | |
115 | if (cur_layout == SRC_COMMAND || cur_layout == SRC_DATA_COMMAND) | |
116 | new_layout = SRC_DATA_COMMAND; | |
117 | else | |
118 | new_layout = DISASSEM_DATA_COMMAND; | |
119 | tui_set_layout (new_layout); | |
120 | } | |
c906108c | 121 | |
10f59415 SC |
122 | /* Show the registers of the given group in the data window |
123 | and refresh the window. */ | |
c906108c | 124 | void |
10f59415 | 125 | tui_show_registers (struct reggroup *group) |
c906108c | 126 | { |
0bfbda3b SC |
127 | /* Make sure the curses mode is enabled. */ |
128 | tui_enable (); | |
129 | ||
130 | /* Make sure the register window is visible. If not, select an | |
131 | appropriate layout. */ | |
cb2ce893 | 132 | if (TUI_DATA_WIN == NULL || !TUI_DATA_WIN->is_visible) |
0379b883 | 133 | tui_reg_layout (); |
0bfbda3b | 134 | |
10f59415 SC |
135 | if (group == 0) |
136 | group = general_reggroup; | |
c906108c | 137 | |
1cc6d956 MS |
138 | /* Say that registers should be displayed, even if there is a |
139 | problem. */ | |
ceb13a13 | 140 | TUI_DATA_WIN->display_regs = true; |
10f59415 SC |
141 | |
142 | if (target_has_registers && target_has_stack && target_has_memory) | |
c906108c | 143 | { |
e80cd204 | 144 | tui_show_register_group (TUI_DATA_WIN, group, get_selected_frame (NULL), |
21e1c91e | 145 | group == TUI_DATA_WIN->current_group); |
368c1354 | 146 | |
1cc6d956 | 147 | /* Clear all notation of changed values. */ |
21e1c91e | 148 | for (auto &&data_item_win : TUI_DATA_WIN->regs_content) |
c906108c | 149 | { |
21e1c91e TT |
150 | if (data_item_win != nullptr) |
151 | data_item_win->highlight = false; | |
c906108c | 152 | } |
238eb706 | 153 | TUI_DATA_WIN->current_group = group; |
50daf268 | 154 | TUI_DATA_WIN->display_all_data (); |
c906108c | 155 | } |
368c1354 TT |
156 | else |
157 | { | |
158 | TUI_DATA_WIN->current_group = 0; | |
159 | TUI_DATA_WIN->erase_data_content (NO_REGS_STRING); | |
160 | } | |
55fb0713 | 161 | } |
c906108c SS |
162 | |
163 | ||
10f59415 | 164 | /* Set the data window to display the registers of the register group |
1cc6d956 MS |
165 | using the given frame. Values are refreshed only when |
166 | refresh_values_only is TRUE. */ | |
10f59415 | 167 | |
21e1c91e | 168 | static void |
e80cd204 TT |
169 | tui_show_register_group (tui_data_window *win_info, |
170 | struct reggroup *group, | |
08ef48c5 MS |
171 | struct frame_info *frame, |
172 | int refresh_values_only) | |
10f59415 | 173 | { |
5eccfcc2 | 174 | struct gdbarch *gdbarch = get_frame_arch (frame); |
10f59415 | 175 | int nr_regs; |
10f59415 SC |
176 | int regnum, pos; |
177 | char title[80]; | |
10f59415 SC |
178 | |
179 | /* Make a new title showing which group we display. */ | |
180 | snprintf (title, sizeof (title) - 1, "Register group: %s", | |
181 | reggroup_name (group)); | |
e80cd204 TT |
182 | xfree (win_info->title); |
183 | win_info->title = xstrdup (title); | |
10f59415 SC |
184 | |
185 | /* See how many registers must be displayed. */ | |
186 | nr_regs = 0; | |
f6efe3f8 | 187 | for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++) |
10f59415 | 188 | { |
d20c1c3f PA |
189 | const char *name; |
190 | ||
191 | /* Must be in the group. */ | |
192 | if (!gdbarch_register_reggroup_p (gdbarch, regnum, group)) | |
193 | continue; | |
194 | ||
195 | /* If the register name is empty, it is undefined for this | |
196 | processor, so don't display anything. */ | |
197 | name = gdbarch_register_name (gdbarch, regnum); | |
198 | if (name == 0 || *name == '\0') | |
199 | continue; | |
200 | ||
201 | nr_regs++; | |
10f59415 SC |
202 | } |
203 | ||
21e1c91e | 204 | if (!refresh_values_only) |
e80cd204 | 205 | win_info->regs_content.clear (); |
10f59415 | 206 | |
e80cd204 TT |
207 | if (nr_regs < win_info->regs_content.size ()) |
208 | win_info->regs_content.resize (nr_regs); | |
21e1c91e | 209 | else |
10f59415 | 210 | { |
e80cd204 TT |
211 | for (int i = win_info->regs_content.size (); i < nr_regs; ++i) |
212 | win_info->regs_content.emplace_back (new tui_data_item_window ()); | |
10f59415 SC |
213 | } |
214 | ||
21e1c91e TT |
215 | /* Now set the register names and values. */ |
216 | pos = 0; | |
217 | for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++) | |
10f59415 | 218 | { |
21e1c91e TT |
219 | struct tui_data_item_window *data_item_win; |
220 | const char *name; | |
10f59415 | 221 | |
21e1c91e TT |
222 | /* Must be in the group. */ |
223 | if (!gdbarch_register_reggroup_p (gdbarch, regnum, group)) | |
224 | continue; | |
10f59415 | 225 | |
21e1c91e TT |
226 | /* If the register name is empty, it is undefined for this |
227 | processor, so don't display anything. */ | |
228 | name = gdbarch_register_name (gdbarch, regnum); | |
229 | if (name == 0 || *name == '\0') | |
230 | continue; | |
10f59415 | 231 | |
e80cd204 | 232 | data_item_win = win_info->regs_content[pos].get (); |
21e1c91e TT |
233 | if (data_item_win) |
234 | { | |
235 | if (!refresh_values_only) | |
236 | { | |
237 | data_item_win->item_no = regnum; | |
238 | data_item_win->name = name; | |
239 | data_item_win->highlight = false; | |
240 | } | |
241 | tui_get_register (frame, data_item_win, regnum, 0); | |
242 | } | |
243 | pos++; | |
244 | } | |
10f59415 SC |
245 | } |
246 | ||
18ab23af | 247 | /* See tui-regs.h. */ |
517e9505 | 248 | |
c906108c | 249 | void |
517e9505 | 250 | tui_data_window::display_registers_from (int start_element_no) |
c906108c | 251 | { |
517e9505 | 252 | if (!regs_content.empty ()) |
c906108c | 253 | { |
0043e6a5 | 254 | int j, item_win_width, cur_y; |
10f59415 SC |
255 | |
256 | int max_len = 0; | |
517e9505 | 257 | for (auto &&data_item_win : regs_content) |
10f59415 | 258 | { |
10f59415 SC |
259 | char *p; |
260 | int len; | |
261 | ||
10f59415 | 262 | len = 0; |
41bcff7f | 263 | p = data_item_win->content; |
10f59415 SC |
264 | if (p != 0) |
265 | while (*p) | |
266 | { | |
267 | if (*p++ == '\t') | |
268 | len = 8 * ((len / 8) + 1); | |
269 | else | |
270 | len++; | |
271 | } | |
272 | ||
273 | if (len > max_len) | |
274 | max_len = len; | |
275 | } | |
276 | item_win_width = max_len + 1; | |
21e1c91e | 277 | int i = start_element_no; |
10f59415 | 278 | |
517e9505 TT |
279 | regs_column_count = (width - 2) / item_win_width; |
280 | if (regs_column_count == 0) | |
281 | regs_column_count = 1; | |
282 | item_win_width = (width - 2) / regs_column_count; | |
10f59415 | 283 | |
ef5eab5a MS |
284 | /* Now create each data "sub" window, and write the display into |
285 | it. */ | |
6ba8e26f | 286 | cur_y = 1; |
517e9505 TT |
287 | while (i < regs_content.size () |
288 | && cur_y <= viewport_height) | |
c906108c SS |
289 | { |
290 | for (j = 0; | |
517e9505 | 291 | j < regs_column_count && i < regs_content.size (); |
e5908723 | 292 | j++) |
c906108c | 293 | { |
41bcff7f | 294 | struct tui_data_item_window *data_item_win; |
c906108c | 295 | |
1cc6d956 | 296 | /* Create the window if necessary. */ |
517e9505 | 297 | data_item_win = regs_content[i].get (); |
cafb3438 | 298 | if (data_item_win->handle != NULL |
10f59415 SC |
299 | && (data_item_win->height != 1 |
300 | || data_item_win->width != item_win_width | |
301 | || data_item_win->origin.x != (item_win_width * j) + 1 | |
302 | || data_item_win->origin.y != cur_y)) | |
303 | { | |
304 | tui_delete_win (data_item_win->handle); | |
305 | data_item_win->handle = 0; | |
306 | } | |
307 | ||
cafb3438 | 308 | if (data_item_win->handle == NULL) |
c906108c | 309 | { |
6ba8e26f | 310 | data_item_win->height = 1; |
10f59415 | 311 | data_item_win->width = item_win_width; |
6ba8e26f AC |
312 | data_item_win->origin.x = (item_win_width * j) + 1; |
313 | data_item_win->origin.y = cur_y; | |
314 | tui_make_window (data_item_win, DONT_BOX_WINDOW); | |
315 | scrollok (data_item_win->handle, FALSE); | |
c906108c | 316 | } |
6ba8e26f | 317 | touchwin (data_item_win->handle); |
fea14702 | 318 | |
10f59415 SC |
319 | /* Get the printable representation of the register |
320 | and display it. */ | |
41bcff7f | 321 | tui_display_register (data_item_win); |
1cc6d956 | 322 | i++; /* Next register. */ |
c906108c | 323 | } |
1cc6d956 | 324 | cur_y++; /* Next row. */ |
c906108c SS |
325 | } |
326 | } | |
55fb0713 | 327 | } |
c906108c | 328 | |
18ab23af | 329 | /* See tui-regs.h. */ |
c906108c | 330 | |
aca2dd16 TT |
331 | void |
332 | tui_data_window::display_reg_element_at_line (int start_element_no, | |
333 | int start_line_no) | |
c906108c | 334 | { |
aca2dd16 | 335 | if (!regs_content.empty ()) |
c906108c | 336 | { |
d02c80cd | 337 | int element_no = start_element_no; |
c906108c | 338 | |
6ba8e26f | 339 | if (start_element_no != 0 && start_line_no != 0) |
c906108c | 340 | { |
d02c80cd | 341 | int last_line_no, first_line_on_last_page; |
c906108c | 342 | |
aca2dd16 TT |
343 | last_line_no = last_regs_line_no (); |
344 | first_line_on_last_page = last_line_no - (height - 2); | |
6ba8e26f AC |
345 | if (first_line_on_last_page < 0) |
346 | first_line_on_last_page = 0; | |
ef5eab5a | 347 | |
115ac53b | 348 | /* If the element_no causes us to scroll past the end of the |
ef5eab5a MS |
349 | registers, adjust what element to really start the |
350 | display at. */ | |
115ac53b | 351 | if (start_line_no > first_line_on_last_page) |
aca2dd16 | 352 | element_no = first_reg_element_no_inline (first_line_on_last_page); |
c906108c | 353 | } |
aca2dd16 | 354 | display_registers_from (element_no); |
c906108c | 355 | } |
6ba8e26f | 356 | } |
c906108c | 357 | |
18ab23af | 358 | /* See tui-regs.h. */ |
c906108c | 359 | |
c906108c | 360 | int |
517e9505 | 361 | tui_data_window::display_registers_from_line (int line_no) |
c906108c | 362 | { |
517e9505 TT |
363 | tui_check_and_display_highlight_if_needed (this); |
364 | if (!regs_content.empty ()) | |
c906108c | 365 | { |
80cb6c27 | 366 | int element_no; |
c906108c | 367 | |
6ba8e26f | 368 | if (line_no < 0) |
80cb6c27 TT |
369 | line_no = 0; |
370 | else | |
371 | { | |
372 | /* Make sure that we don't display off the end of the | |
ef5eab5a | 373 | registers. */ |
517e9505 | 374 | if (line_no >= last_regs_line_no ()) |
c906108c | 375 | { |
517e9505 TT |
376 | line_no = line_from_reg_element_no (regs_content.size () - 1); |
377 | if (line_no < 0) | |
80cb6c27 | 378 | line_no = 0; |
c906108c | 379 | } |
c906108c | 380 | } |
c906108c | 381 | |
517e9505 TT |
382 | element_no = first_reg_element_no_inline (line_no); |
383 | if (element_no < regs_content.size ()) | |
aca2dd16 | 384 | display_reg_element_at_line (element_no, line_no); |
c906108c | 385 | else |
80cb6c27 | 386 | line_no = (-1); |
c906108c | 387 | |
80cb6c27 | 388 | return line_no; |
c906108c SS |
389 | } |
390 | ||
1cc6d956 | 391 | return (-1); /* Nothing was displayed. */ |
55fb0713 | 392 | } |
c906108c SS |
393 | |
394 | ||
18ab23af TT |
395 | /* Answer the index first element displayed. If none are displayed, |
396 | then return (-1). */ | |
397 | int | |
398 | tui_data_window::first_data_item_displayed () | |
399 | { | |
400 | for (int i = 0; i < regs_content.size (); i++) | |
401 | { | |
402 | struct tui_gen_win_info *data_item_win; | |
403 | ||
404 | data_item_win = regs_content[i].get (); | |
405 | if (data_item_win->handle != NULL && data_item_win->is_visible) | |
406 | return i; | |
407 | } | |
408 | ||
409 | return -1; | |
410 | } | |
411 | ||
412 | /* See tui-regs.h. */ | |
413 | ||
414 | void | |
415 | tui_data_window::delete_data_content_windows () | |
416 | { | |
417 | for (auto &&win : regs_content) | |
418 | { | |
419 | tui_delete_win (win->handle); | |
420 | win->handle = NULL; | |
421 | win->is_visible = false; | |
422 | } | |
423 | } | |
424 | ||
425 | ||
426 | void | |
427 | tui_data_window::erase_data_content (const char *prompt) | |
428 | { | |
429 | werase (handle); | |
430 | tui_check_and_display_highlight_if_needed (this); | |
431 | if (prompt != NULL) | |
432 | { | |
433 | int half_width = (width - 2) / 2; | |
434 | int x_pos; | |
435 | ||
436 | if (strlen (prompt) >= half_width) | |
437 | x_pos = 1; | |
438 | else | |
439 | x_pos = half_width - strlen (prompt); | |
440 | mvwaddstr (handle, (height / 2), x_pos, (char *) prompt); | |
441 | } | |
442 | wrefresh (handle); | |
443 | } | |
444 | ||
445 | /* See tui-regs.h. */ | |
446 | ||
447 | void | |
448 | tui_data_window::display_all_data () | |
449 | { | |
450 | if (regs_content.empty ()) | |
451 | erase_data_content (NO_DATA_STRING); | |
452 | else | |
453 | { | |
454 | erase_data_content (NULL); | |
455 | delete_data_content_windows (); | |
456 | tui_check_and_display_highlight_if_needed (this); | |
457 | display_registers_from (0); | |
458 | } | |
459 | } | |
460 | ||
461 | ||
462 | /* Function to redisplay the contents of the data window. */ | |
463 | void | |
464 | tui_data_window::refresh_all () | |
465 | { | |
466 | erase_data_content (NULL); | |
467 | if (!regs_content.empty ()) | |
468 | { | |
469 | int first_element = first_data_item_displayed (); | |
470 | ||
471 | if (first_element >= 0) /* Re-use existing windows. */ | |
472 | { | |
473 | int first_line = (-1); | |
474 | ||
475 | if (first_element < regs_content.size ()) | |
476 | first_line = line_from_reg_element_no (first_element); | |
477 | ||
478 | if (first_line >= 0) | |
479 | { | |
480 | erase_data_content (NULL); | |
481 | display_registers_from_line (first_line); | |
482 | } | |
483 | } | |
484 | } | |
485 | } | |
486 | ||
487 | ||
488 | /* Scroll the data window vertically forward or backward. */ | |
489 | void | |
490 | tui_data_window::do_scroll_vertical (int num_to_scroll) | |
491 | { | |
492 | int first_element_no; | |
493 | int first_line = (-1); | |
494 | ||
495 | first_element_no = first_data_item_displayed (); | |
496 | if (first_element_no < regs_content.size ()) | |
497 | first_line = line_from_reg_element_no (first_element_no); | |
498 | else | |
499 | { /* Calculate the first line from the element number which is in | |
500 | the general data content. */ | |
501 | } | |
502 | ||
503 | if (first_line >= 0) | |
504 | { | |
505 | first_line += num_to_scroll; | |
506 | erase_data_content (NULL); | |
507 | delete_data_content_windows (); | |
508 | display_registers_from_line (first_line); | |
509 | } | |
510 | } | |
511 | ||
512 | /* See tui-regs.h. */ | |
513 | ||
514 | void | |
515 | tui_data_window::clear_detail () | |
516 | { | |
517 | regs_content.clear (); | |
518 | regs_column_count = 1; | |
519 | display_regs = false; | |
520 | } | |
521 | ||
522 | /* See tui-regs.h. */ | |
523 | ||
524 | void | |
525 | tui_data_window::set_new_height (int height) | |
526 | { | |
527 | /* Delete all data item windows. */ | |
528 | for (auto &&win : regs_content) | |
529 | { | |
530 | tui_delete_win (win->handle); | |
531 | win->handle = NULL; | |
532 | } | |
533 | } | |
534 | ||
535 | /* See tui-regs.h. */ | |
536 | ||
537 | void | |
538 | tui_data_window::do_make_visible_with_new_height () | |
539 | { | |
540 | display_all_data (); | |
541 | } | |
542 | ||
543 | /* See tui-regs.h. */ | |
544 | ||
545 | void | |
546 | tui_data_window::refresh_window () | |
547 | { | |
548 | tui_gen_win_info::refresh_window (); | |
549 | for (auto &&win : regs_content) | |
550 | { | |
551 | if (win != NULL) | |
552 | win->refresh_window (); | |
553 | } | |
554 | } | |
555 | ||
55fb0713 AC |
556 | /* This function check all displayed registers for changes in values, |
557 | given a particular frame. If the values have changed, they are | |
558 | updated with the new value and highlighted. */ | |
c906108c | 559 | void |
55fb0713 | 560 | tui_check_register_values (struct frame_info *frame) |
c906108c | 561 | { |
e5908723 | 562 | if (TUI_DATA_WIN != NULL |
cb2ce893 | 563 | && TUI_DATA_WIN->is_visible) |
c906108c | 564 | { |
21e1c91e | 565 | if (TUI_DATA_WIN->regs_content.empty () |
238eb706 TT |
566 | && TUI_DATA_WIN->display_regs) |
567 | tui_show_registers (TUI_DATA_WIN->current_group); | |
c906108c SS |
568 | else |
569 | { | |
21e1c91e | 570 | for (auto &&data_item_win_ptr : TUI_DATA_WIN->regs_content) |
c906108c | 571 | { |
6ba8e26f | 572 | int was_hilighted; |
c906108c | 573 | |
41bcff7f | 574 | was_hilighted = data_item_win_ptr->highlight; |
10f59415 | 575 | |
21e1c91e | 576 | tui_get_register (frame, data_item_win_ptr.get (), |
41bcff7f TT |
577 | data_item_win_ptr->item_no, |
578 | &data_item_win_ptr->highlight); | |
10f59415 | 579 | |
41bcff7f | 580 | if (data_item_win_ptr->highlight || was_hilighted) |
21e1c91e | 581 | tui_display_register (data_item_win_ptr.get ()); |
c906108c SS |
582 | } |
583 | } | |
584 | } | |
55fb0713 | 585 | } |
c906108c | 586 | |
1cc6d956 MS |
587 | /* Display a register in a window. If hilite is TRUE, then the value |
588 | will be displayed in reverse video. */ | |
10f59415 | 589 | static void |
41bcff7f | 590 | tui_display_register (struct tui_data_item_window *data) |
10f59415 | 591 | { |
41bcff7f | 592 | if (data->handle != NULL) |
10f59415 SC |
593 | { |
594 | int i; | |
c906108c | 595 | |
10f59415 | 596 | if (data->highlight) |
cae3f17b JB |
597 | /* We ignore the return value, casting it to void in order to avoid |
598 | a compiler warning. The warning itself was introduced by a patch | |
599 | to ncurses 5.7 dated 2009-08-29, changing this macro to expand | |
600 | to code that causes the compiler to generate an unused-value | |
601 | warning. */ | |
41bcff7f | 602 | (void) wstandout (data->handle); |
10f59415 | 603 | |
41bcff7f TT |
604 | wmove (data->handle, 0, 0); |
605 | for (i = 1; i < data->width; i++) | |
606 | waddch (data->handle, ' '); | |
607 | wmove (data->handle, 0, 0); | |
10f59415 | 608 | if (data->content) |
41bcff7f | 609 | waddstr (data->handle, data->content); |
10f59415 SC |
610 | |
611 | if (data->highlight) | |
cae3f17b JB |
612 | /* We ignore the return value, casting it to void in order to avoid |
613 | a compiler warning. The warning itself was introduced by a patch | |
614 | to ncurses 5.7 dated 2009-08-29, changing this macro to expand | |
615 | to code that causes the compiler to generate an unused-value | |
616 | warning. */ | |
41bcff7f TT |
617 | (void) wstandend (data->handle); |
618 | data->refresh_window (); | |
10f59415 SC |
619 | } |
620 | } | |
621 | ||
51f0e40d AB |
622 | /* Helper for "tui reg next", wraps a call to REGGROUP_NEXT, but adds wrap |
623 | around behaviour. Returns the next register group, or NULL if the | |
624 | register window is not currently being displayed. */ | |
625 | ||
626 | static struct reggroup * | |
fe3eaf1c | 627 | tui_reg_next (struct reggroup *current_group, struct gdbarch *gdbarch) |
c906108c | 628 | { |
51f0e40d | 629 | struct reggroup *group = NULL; |
e17c207e | 630 | |
fe3eaf1c | 631 | if (current_group != NULL) |
10f59415 | 632 | { |
fe3eaf1c | 633 | group = reggroup_next (gdbarch, current_group); |
b75c69bb AB |
634 | if (group == NULL) |
635 | group = reggroup_next (gdbarch, NULL); | |
10f59415 | 636 | } |
51f0e40d | 637 | return group; |
10f59415 SC |
638 | } |
639 | ||
51f0e40d AB |
640 | /* Helper for "tui reg prev", wraps a call to REGGROUP_PREV, but adds wrap |
641 | around behaviour. Returns the previous register group, or NULL if the | |
642 | register window is not currently being displayed. */ | |
55b40027 | 643 | |
51f0e40d | 644 | static struct reggroup * |
fe3eaf1c | 645 | tui_reg_prev (struct reggroup *current_group, struct gdbarch *gdbarch) |
55b40027 | 646 | { |
51f0e40d | 647 | struct reggroup *group = NULL; |
55b40027 | 648 | |
fe3eaf1c | 649 | if (current_group != NULL) |
55b40027 | 650 | { |
fe3eaf1c | 651 | group = reggroup_prev (gdbarch, current_group); |
55b40027 AB |
652 | if (group == NULL) |
653 | group = reggroup_prev (gdbarch, NULL); | |
55b40027 | 654 | } |
51f0e40d | 655 | return group; |
55b40027 AB |
656 | } |
657 | ||
51f0e40d AB |
658 | /* Implement the 'tui reg' command. Changes the register group displayed |
659 | in the tui register window. Displays the tui register window if it is | |
660 | not already on display. */ | |
c906108c | 661 | |
10f59415 | 662 | static void |
e2d8ae16 | 663 | tui_reg_command (const char *args, int from_tty) |
10f59415 | 664 | { |
51f0e40d | 665 | struct gdbarch *gdbarch = get_current_arch (); |
c906108c | 666 | |
51f0e40d AB |
667 | if (args != NULL) |
668 | { | |
669 | struct reggroup *group, *match = NULL; | |
670 | size_t len = strlen (args); | |
671 | ||
672 | /* Make sure the curses mode is enabled. */ | |
673 | tui_enable (); | |
674 | ||
675 | /* Make sure the register window is visible. If not, select an | |
676 | appropriate layout. We need to do this before trying to run the | |
677 | 'next' or 'prev' commands. */ | |
cb2ce893 | 678 | if (TUI_DATA_WIN == NULL || !TUI_DATA_WIN->is_visible) |
0379b883 | 679 | tui_reg_layout (); |
51f0e40d | 680 | |
fe3eaf1c TT |
681 | struct reggroup *current_group = NULL; |
682 | if (TUI_DATA_WIN != NULL) | |
683 | current_group = TUI_DATA_WIN->current_group; | |
51f0e40d | 684 | if (strncmp (args, "next", len) == 0) |
fe3eaf1c | 685 | match = tui_reg_next (current_group, gdbarch); |
51f0e40d | 686 | else if (strncmp (args, "prev", len) == 0) |
fe3eaf1c | 687 | match = tui_reg_prev (current_group, gdbarch); |
51f0e40d AB |
688 | |
689 | /* This loop matches on the initial part of a register group | |
690 | name. If this initial part in ARGS matches only one register | |
691 | group then the switch is made. */ | |
692 | for (group = reggroup_next (gdbarch, NULL); | |
693 | group != NULL; | |
694 | group = reggroup_next (gdbarch, group)) | |
695 | { | |
696 | if (strncmp (reggroup_name (group), args, len) == 0) | |
697 | { | |
698 | if (match != NULL) | |
699 | error (_("ambiguous register group name '%s'"), args); | |
700 | match = group; | |
701 | } | |
702 | } | |
703 | ||
704 | if (match == NULL) | |
705 | error (_("unknown register group '%s'"), args); | |
706 | ||
707 | tui_show_registers (match); | |
708 | } | |
709 | else | |
710 | { | |
711 | struct reggroup *group; | |
712 | int first; | |
713 | ||
714 | printf_unfiltered (_("\"tui reg\" must be followed by the name of " | |
715 | "either a register group,\nor one of 'next' " | |
716 | "or 'prev'. Known register groups are:\n")); | |
717 | ||
718 | for (first = 1, group = reggroup_next (gdbarch, NULL); | |
719 | group != NULL; | |
720 | first = 0, group = reggroup_next (gdbarch, group)) | |
721 | { | |
722 | if (!first) | |
723 | printf_unfiltered (", "); | |
724 | printf_unfiltered ("%s", reggroup_name (group)); | |
725 | } | |
726 | ||
727 | printf_unfiltered ("\n"); | |
728 | } | |
10f59415 SC |
729 | } |
730 | ||
51f0e40d AB |
731 | /* Complete names of register groups, and add the special "prev" and "next" |
732 | names. */ | |
c906108c | 733 | |
eb3ff9a5 | 734 | static void |
51f0e40d | 735 | tui_reggroup_completer (struct cmd_list_element *ignore, |
eb3ff9a5 | 736 | completion_tracker &tracker, |
51f0e40d | 737 | const char *text, const char *word) |
10f59415 | 738 | { |
51f0e40d AB |
739 | static const char *extra[] = { "next", "prev", NULL }; |
740 | size_t len = strlen (word); | |
741 | const char **tmp; | |
742 | ||
eb3ff9a5 | 743 | reggroup_completer (ignore, tracker, text, word); |
51f0e40d | 744 | |
eb3ff9a5 | 745 | /* XXXX use complete_on_enum instead? */ |
51f0e40d AB |
746 | for (tmp = extra; *tmp != NULL; ++tmp) |
747 | { | |
748 | if (strncmp (word, *tmp, len) == 0) | |
b02f78f9 | 749 | tracker.add_completion (make_unique_xstrdup (*tmp)); |
51f0e40d | 750 | } |
10f59415 | 751 | } |
c906108c | 752 | |
6eed1678 PA |
753 | /* Get the register from the frame and return a printable |
754 | representation of it. */ | |
755 | ||
756 | static char * | |
757 | tui_register_format (struct frame_info *frame, int regnum) | |
c906108c | 758 | { |
5eccfcc2 | 759 | struct gdbarch *gdbarch = get_frame_arch (frame); |
d20c1c3f | 760 | |
d7e74731 PA |
761 | string_file stream; |
762 | ||
31b68d4a TT |
763 | scoped_restore save_pagination |
764 | = make_scoped_restore (&pagination_enabled, 0); | |
765 | scoped_restore save_stdout | |
766 | = make_scoped_restore (&gdb_stdout, &stream); | |
767 | ||
d7e74731 | 768 | gdbarch_print_registers_info (gdbarch, &stream, frame, regnum, 1); |
c46cc7df SC |
769 | |
770 | /* Remove the possible \n. */ | |
d7e74731 PA |
771 | std::string &str = stream.string (); |
772 | if (!str.empty () && str.back () == '\n') | |
773 | str.resize (str.size () - 1); | |
c46cc7df | 774 | |
312809f8 | 775 | /* Expand tabs into spaces, since ncurses on MS-Windows doesn't. */ |
31b68d4a | 776 | return tui_expand_tabs (str.c_str (), 0); |
c46cc7df | 777 | } |
c906108c | 778 | |
1cc6d956 MS |
779 | /* Get the register value from the given frame and format it for the |
780 | display. When changep is set, check if the new register value has | |
781 | changed with respect to the previous call. */ | |
2cdfa113 | 782 | static void |
5eccfcc2 | 783 | tui_get_register (struct frame_info *frame, |
41bcff7f TT |
784 | struct tui_data_item_window *data, |
785 | int regnum, bool *changedp) | |
c906108c | 786 | { |
10f59415 | 787 | if (changedp) |
41bcff7f | 788 | *changedp = false; |
c906108c SS |
789 | if (target_has_registers) |
790 | { | |
6eed1678 | 791 | char *prev_content = data->content; |
10f59415 | 792 | |
6eed1678 | 793 | data->content = tui_register_format (frame, regnum); |
9c5ea4d9 | 794 | |
6eed1678 PA |
795 | if (changedp != NULL |
796 | && strcmp (prev_content, data->content) != 0) | |
41bcff7f | 797 | *changedp = true; |
d20c1c3f | 798 | |
6eed1678 | 799 | xfree (prev_content); |
c906108c | 800 | } |
6ba8e26f | 801 | } |
18ab23af TT |
802 | |
803 | void | |
804 | _initialize_tui_regs (void) | |
805 | { | |
806 | struct cmd_list_element **tuicmd, *cmd; | |
807 | ||
808 | tuicmd = tui_get_cmd_list (); | |
809 | ||
810 | cmd = add_cmd ("reg", class_tui, tui_reg_command, _("\ | |
811 | TUI command to control the register window."), tuicmd); | |
812 | set_cmd_completer (cmd, tui_reggroup_completer); | |
813 | } |