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" | |
35 | #include "tui/tui-windata.h" | |
36 | #include "tui/tui-wingeneral.h" | |
37 | #include "tui/tui-file.h" | |
2c0b251b | 38 | #include "tui/tui-regs.h" |
312809f8 | 39 | #include "tui/tui-io.h" |
10f59415 | 40 | #include "reggroups.h" |
79a45b7d | 41 | #include "valprint.h" |
51f0e40d | 42 | #include "completer.h" |
c906108c | 43 | |
6a83354a | 44 | #include "gdb_curses.h" |
96ec9981 | 45 | |
c906108c SS |
46 | |
47 | /***************************************** | |
10f59415 | 48 | ** STATIC LOCAL FUNCTIONS FORWARD DECLS ** |
c906108c | 49 | ******************************************/ |
10f59415 SC |
50 | static void |
51 | tui_display_register (struct tui_data_element *data, | |
52 | struct tui_gen_win_info *win_info); | |
c906108c | 53 | |
5eccfcc2 UW |
54 | static enum tui_status tui_show_register_group (struct reggroup *group, |
55 | struct frame_info *frame, | |
56 | int refresh_values_only); | |
57 | ||
58 | static enum tui_status tui_get_register (struct frame_info *frame, | |
59 | struct tui_data_element *data, | |
60 | int regnum, int *changedp); | |
61 | ||
c906108c SS |
62 | |
63 | ||
64 | /***************************************** | |
65 | ** PUBLIC FUNCTIONS ** | |
66 | ******************************************/ | |
67 | ||
55fb0713 AC |
68 | /* Answer the number of the last line in the regs display. If there |
69 | are no registers (-1) is returned. */ | |
c906108c | 70 | int |
55fb0713 | 71 | tui_last_regs_line_no (void) |
c906108c | 72 | { |
d02c80cd | 73 | int num_lines = (-1); |
c906108c | 74 | |
6d012f14 | 75 | if (TUI_DATA_WIN->detail.data_display_info.regs_content_count > 0) |
c906108c | 76 | { |
6ba8e26f | 77 | num_lines = (TUI_DATA_WIN->detail.data_display_info.regs_content_count / |
6d012f14 AC |
78 | TUI_DATA_WIN->detail.data_display_info.regs_column_count); |
79 | if (TUI_DATA_WIN->detail.data_display_info.regs_content_count % | |
80 | TUI_DATA_WIN->detail.data_display_info.regs_column_count) | |
6ba8e26f | 81 | num_lines++; |
c906108c | 82 | } |
6ba8e26f | 83 | return num_lines; |
55fb0713 | 84 | } |
c906108c SS |
85 | |
86 | ||
6ba8e26f AC |
87 | /* Answer the line number that the register element at element_no is |
88 | on. If element_no is greater than the number of register elements | |
55fb0713 | 89 | there are, -1 is returned. */ |
c906108c | 90 | int |
6ba8e26f | 91 | tui_line_from_reg_element_no (int element_no) |
c906108c | 92 | { |
6ba8e26f | 93 | if (element_no < TUI_DATA_WIN->detail.data_display_info.regs_content_count) |
c906108c SS |
94 | { |
95 | int i, line = (-1); | |
96 | ||
97 | i = 1; | |
98 | while (line == (-1)) | |
99 | { | |
6ba8e26f | 100 | if (element_no < |
6d012f14 | 101 | (TUI_DATA_WIN->detail.data_display_info.regs_column_count * i)) |
c906108c SS |
102 | line = i - 1; |
103 | else | |
104 | i++; | |
105 | } | |
106 | ||
107 | return line; | |
108 | } | |
109 | else | |
110 | return (-1); | |
55fb0713 | 111 | } |
c906108c SS |
112 | |
113 | ||
1cc6d956 MS |
114 | /* Answer the index of the first element in line_no. If line_no is |
115 | past the register area (-1) is returned. */ | |
c906108c | 116 | int |
6ba8e26f | 117 | tui_first_reg_element_no_inline (int line_no) |
c906108c | 118 | { |
6ba8e26f | 119 | if ((line_no * TUI_DATA_WIN->detail.data_display_info.regs_column_count) |
6d012f14 | 120 | <= TUI_DATA_WIN->detail.data_display_info.regs_content_count) |
6ba8e26f | 121 | return ((line_no + 1) * |
6d012f14 AC |
122 | TUI_DATA_WIN->detail.data_display_info.regs_column_count) - |
123 | TUI_DATA_WIN->detail.data_display_info.regs_column_count; | |
c906108c SS |
124 | else |
125 | return (-1); | |
55fb0713 | 126 | } |
c906108c SS |
127 | |
128 | ||
10f59415 SC |
129 | /* Show the registers of the given group in the data window |
130 | and refresh the window. */ | |
c906108c | 131 | void |
10f59415 | 132 | tui_show_registers (struct reggroup *group) |
c906108c | 133 | { |
22940a24 | 134 | enum tui_status ret = TUI_FAILURE; |
0bfbda3b | 135 | struct tui_data_info *display_info; |
c906108c | 136 | |
0bfbda3b SC |
137 | /* Make sure the curses mode is enabled. */ |
138 | tui_enable (); | |
139 | ||
140 | /* Make sure the register window is visible. If not, select an | |
141 | appropriate layout. */ | |
142 | if (TUI_DATA_WIN == NULL || !TUI_DATA_WIN->generic.is_visible) | |
7bd0be3a | 143 | tui_set_layout_by_name (DATA_NAME); |
0bfbda3b SC |
144 | |
145 | display_info = &TUI_DATA_WIN->detail.data_display_info; | |
10f59415 SC |
146 | if (group == 0) |
147 | group = general_reggroup; | |
c906108c | 148 | |
1cc6d956 MS |
149 | /* Say that registers should be displayed, even if there is a |
150 | problem. */ | |
10f59415 SC |
151 | display_info->display_regs = TRUE; |
152 | ||
153 | if (target_has_registers && target_has_stack && target_has_memory) | |
c906108c | 154 | { |
8eb6bda2 | 155 | ret = tui_show_register_group (group, get_selected_frame (NULL), |
10f59415 | 156 | group == display_info->current_group); |
c906108c SS |
157 | } |
158 | if (ret == TUI_FAILURE) | |
159 | { | |
10f59415 | 160 | display_info->current_group = 0; |
edae1ccf | 161 | tui_erase_data_content (NO_REGS_STRING); |
c906108c SS |
162 | } |
163 | else | |
164 | { | |
165 | int i; | |
166 | ||
1cc6d956 | 167 | /* Clear all notation of changed values. */ |
10f59415 | 168 | for (i = 0; i < display_info->regs_content_count; i++) |
c906108c | 169 | { |
10f59415 SC |
170 | struct tui_gen_win_info *data_item_win; |
171 | struct tui_win_element *win; | |
c906108c | 172 | |
10f59415 SC |
173 | data_item_win = &display_info->regs_content[i] |
174 | ->which_element.data_window; | |
63ed8182 | 175 | win = data_item_win->content[0]; |
10f59415 | 176 | win->which_element.data.highlight = FALSE; |
c906108c | 177 | } |
10f59415 | 178 | display_info->current_group = group; |
edae1ccf | 179 | tui_display_all_data (); |
c906108c | 180 | } |
55fb0713 | 181 | } |
c906108c SS |
182 | |
183 | ||
10f59415 | 184 | /* Set the data window to display the registers of the register group |
1cc6d956 MS |
185 | using the given frame. Values are refreshed only when |
186 | refresh_values_only is TRUE. */ | |
10f59415 SC |
187 | |
188 | static enum tui_status | |
5eccfcc2 | 189 | tui_show_register_group (struct reggroup *group, |
08ef48c5 MS |
190 | struct frame_info *frame, |
191 | int refresh_values_only) | |
10f59415 | 192 | { |
5eccfcc2 | 193 | struct gdbarch *gdbarch = get_frame_arch (frame); |
10f59415 SC |
194 | enum tui_status ret = TUI_FAILURE; |
195 | int nr_regs; | |
196 | int allocated_here = FALSE; | |
197 | int regnum, pos; | |
198 | char title[80]; | |
199 | struct tui_data_info *display_info = &TUI_DATA_WIN->detail.data_display_info; | |
200 | ||
201 | /* Make a new title showing which group we display. */ | |
202 | snprintf (title, sizeof (title) - 1, "Register group: %s", | |
203 | reggroup_name (group)); | |
204 | xfree (TUI_DATA_WIN->generic.title); | |
205 | TUI_DATA_WIN->generic.title = xstrdup (title); | |
206 | ||
207 | /* See how many registers must be displayed. */ | |
208 | nr_regs = 0; | |
f6efe3f8 | 209 | for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++) |
10f59415 | 210 | { |
d20c1c3f PA |
211 | const char *name; |
212 | ||
213 | /* Must be in the group. */ | |
214 | if (!gdbarch_register_reggroup_p (gdbarch, regnum, group)) | |
215 | continue; | |
216 | ||
217 | /* If the register name is empty, it is undefined for this | |
218 | processor, so don't display anything. */ | |
219 | name = gdbarch_register_name (gdbarch, regnum); | |
220 | if (name == 0 || *name == '\0') | |
221 | continue; | |
222 | ||
223 | nr_regs++; | |
10f59415 SC |
224 | } |
225 | ||
226 | if (display_info->regs_content_count > 0 && !refresh_values_only) | |
227 | { | |
228 | tui_free_data_content (display_info->regs_content, | |
229 | display_info->regs_content_count); | |
230 | display_info->regs_content_count = 0; | |
231 | } | |
232 | ||
233 | if (display_info->regs_content_count <= 0) | |
234 | { | |
235 | display_info->regs_content = tui_alloc_content (nr_regs, DATA_WIN); | |
236 | allocated_here = TRUE; | |
237 | refresh_values_only = FALSE; | |
238 | } | |
239 | ||
240 | if (display_info->regs_content != (tui_win_content) NULL) | |
241 | { | |
242 | if (!refresh_values_only || allocated_here) | |
243 | { | |
e65b5245 | 244 | TUI_DATA_WIN->generic.content = NULL; |
10f59415 SC |
245 | TUI_DATA_WIN->generic.content_size = 0; |
246 | tui_add_content_elements (&TUI_DATA_WIN->generic, nr_regs); | |
63a33118 | 247 | display_info->regs_content = TUI_DATA_WIN->generic.content; |
10f59415 SC |
248 | display_info->regs_content_count = nr_regs; |
249 | } | |
250 | ||
1cc6d956 | 251 | /* Now set the register names and values. */ |
10f59415 | 252 | pos = 0; |
f6efe3f8 | 253 | for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++) |
10f59415 SC |
254 | { |
255 | struct tui_gen_win_info *data_item_win; | |
256 | struct tui_data_element *data; | |
257 | const char *name; | |
258 | ||
d20c1c3f | 259 | /* Must be in the group. */ |
10f59415 SC |
260 | if (!gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
261 | continue; | |
262 | ||
d20c1c3f PA |
263 | /* If the register name is empty, it is undefined for this |
264 | processor, so don't display anything. */ | |
265 | name = gdbarch_register_name (gdbarch, regnum); | |
266 | if (name == 0 || *name == '\0') | |
267 | continue; | |
10f59415 SC |
268 | |
269 | data_item_win = | |
270 | &display_info->regs_content[pos]->which_element.data_window; | |
63ed8182 | 271 | data = &data_item_win->content[0]->which_element.data; |
10f59415 SC |
272 | if (data) |
273 | { | |
274 | if (!refresh_values_only) | |
275 | { | |
276 | data->item_no = regnum; | |
277 | data->name = name; | |
278 | data->highlight = FALSE; | |
279 | } | |
5eccfcc2 | 280 | tui_get_register (frame, data, regnum, 0); |
10f59415 SC |
281 | } |
282 | pos++; | |
283 | } | |
284 | ||
285 | TUI_DATA_WIN->generic.content_size = | |
286 | display_info->regs_content_count + display_info->data_content_count; | |
287 | ret = TUI_SUCCESS; | |
288 | } | |
289 | ||
290 | return ret; | |
291 | } | |
292 | ||
55fb0713 | 293 | /* Function to display the registers in the content from |
6ba8e26f | 294 | 'start_element_no' until the end of the register content or the end |
55fb0713 AC |
295 | of the display height. No checking for displaying past the end of |
296 | the registers is done here. */ | |
c906108c | 297 | void |
6ba8e26f | 298 | tui_display_registers_from (int start_element_no) |
c906108c | 299 | { |
10f59415 SC |
300 | struct tui_data_info *display_info = &TUI_DATA_WIN->detail.data_display_info; |
301 | ||
e5908723 MS |
302 | if (display_info->regs_content != (tui_win_content) NULL |
303 | && display_info->regs_content_count > 0) | |
c906108c | 304 | { |
d02c80cd | 305 | int i = start_element_no; |
0043e6a5 | 306 | int j, item_win_width, cur_y; |
10f59415 SC |
307 | |
308 | int max_len = 0; | |
309 | for (i = 0; i < display_info->regs_content_count; i++) | |
310 | { | |
311 | struct tui_data_element *data; | |
312 | struct tui_gen_win_info *data_item_win; | |
313 | char *p; | |
314 | int len; | |
315 | ||
9a2b4c1b MS |
316 | data_item_win |
317 | = &display_info->regs_content[i]->which_element.data_window; | |
63ed8182 | 318 | data = &data_item_win->content[0]->which_element.data; |
10f59415 SC |
319 | len = 0; |
320 | p = data->content; | |
321 | if (p != 0) | |
322 | while (*p) | |
323 | { | |
324 | if (*p++ == '\t') | |
325 | len = 8 * ((len / 8) + 1); | |
326 | else | |
327 | len++; | |
328 | } | |
329 | ||
330 | if (len > max_len) | |
331 | max_len = len; | |
332 | } | |
333 | item_win_width = max_len + 1; | |
334 | i = start_element_no; | |
335 | ||
336 | display_info->regs_column_count = | |
337 | (TUI_DATA_WIN->generic.width - 2) / item_win_width; | |
338 | if (display_info->regs_column_count == 0) | |
339 | display_info->regs_column_count = 1; | |
340 | item_win_width = | |
341 | (TUI_DATA_WIN->generic.width - 2) / display_info->regs_column_count; | |
342 | ||
ef5eab5a MS |
343 | /* Now create each data "sub" window, and write the display into |
344 | it. */ | |
6ba8e26f | 345 | cur_y = 1; |
e5908723 MS |
346 | while (i < display_info->regs_content_count |
347 | && cur_y <= TUI_DATA_WIN->generic.viewport_height) | |
c906108c SS |
348 | { |
349 | for (j = 0; | |
e5908723 MS |
350 | j < display_info->regs_column_count |
351 | && i < display_info->regs_content_count; | |
352 | j++) | |
c906108c | 353 | { |
5b6fe301 MS |
354 | struct tui_gen_win_info *data_item_win; |
355 | struct tui_data_element *data_element_ptr; | |
c906108c | 356 | |
1cc6d956 | 357 | /* Create the window if necessary. */ |
10f59415 SC |
358 | data_item_win = &display_info->regs_content[i] |
359 | ->which_element.data_window; | |
63ed8182 | 360 | data_element_ptr = &data_item_win->content[0]->which_element.data; |
10f59415 SC |
361 | if (data_item_win->handle != (WINDOW*) NULL |
362 | && (data_item_win->height != 1 | |
363 | || data_item_win->width != item_win_width | |
364 | || data_item_win->origin.x != (item_win_width * j) + 1 | |
365 | || data_item_win->origin.y != cur_y)) | |
366 | { | |
367 | tui_delete_win (data_item_win->handle); | |
368 | data_item_win->handle = 0; | |
369 | } | |
370 | ||
6ba8e26f | 371 | if (data_item_win->handle == (WINDOW *) NULL) |
c906108c | 372 | { |
6ba8e26f | 373 | data_item_win->height = 1; |
10f59415 | 374 | data_item_win->width = item_win_width; |
6ba8e26f AC |
375 | data_item_win->origin.x = (item_win_width * j) + 1; |
376 | data_item_win->origin.y = cur_y; | |
377 | tui_make_window (data_item_win, DONT_BOX_WINDOW); | |
378 | scrollok (data_item_win->handle, FALSE); | |
c906108c | 379 | } |
6ba8e26f | 380 | touchwin (data_item_win->handle); |
fea14702 | 381 | |
10f59415 SC |
382 | /* Get the printable representation of the register |
383 | and display it. */ | |
384 | tui_display_register (data_element_ptr, data_item_win); | |
1cc6d956 | 385 | i++; /* Next register. */ |
c906108c | 386 | } |
1cc6d956 | 387 | cur_y++; /* Next row. */ |
c906108c SS |
388 | } |
389 | } | |
55fb0713 | 390 | } |
c906108c SS |
391 | |
392 | ||
6ba8e26f AC |
393 | /* Function to display the registers in the content from |
394 | 'start_element_no' on 'start_line_no' until the end of the register | |
395 | content or the end of the display height. This function checks | |
396 | that we won't display off the end of the register display. */ | |
2c0b251b | 397 | static void |
08ef48c5 MS |
398 | tui_display_reg_element_at_line (int start_element_no, |
399 | int start_line_no) | |
c906108c | 400 | { |
9a2b4c1b MS |
401 | if (TUI_DATA_WIN->detail.data_display_info.regs_content |
402 | != (tui_win_content) NULL | |
e5908723 | 403 | && TUI_DATA_WIN->detail.data_display_info.regs_content_count > 0) |
c906108c | 404 | { |
d02c80cd | 405 | int element_no = start_element_no; |
c906108c | 406 | |
6ba8e26f | 407 | if (start_element_no != 0 && start_line_no != 0) |
c906108c | 408 | { |
d02c80cd | 409 | int last_line_no, first_line_on_last_page; |
c906108c | 410 | |
6ba8e26f | 411 | last_line_no = tui_last_regs_line_no (); |
9a2b4c1b MS |
412 | first_line_on_last_page |
413 | = last_line_no - (TUI_DATA_WIN->generic.height - 2); | |
6ba8e26f AC |
414 | if (first_line_on_last_page < 0) |
415 | first_line_on_last_page = 0; | |
ef5eab5a MS |
416 | |
417 | /* If there is no other data displayed except registers, and | |
418 | the element_no causes us to scroll past the end of the | |
419 | registers, adjust what element to really start the | |
420 | display at. */ | |
e5908723 MS |
421 | if (TUI_DATA_WIN->detail.data_display_info.data_content_count <= 0 |
422 | && start_line_no > first_line_on_last_page) | |
9a2b4c1b MS |
423 | element_no |
424 | = tui_first_reg_element_no_inline (first_line_on_last_page); | |
c906108c | 425 | } |
6ba8e26f | 426 | tui_display_registers_from (element_no); |
c906108c | 427 | } |
6ba8e26f | 428 | } |
c906108c SS |
429 | |
430 | ||
431 | ||
6ba8e26f | 432 | /* Function to display the registers starting at line line_no in the |
55fb0713 AC |
433 | data window. Answers the line number that the display actually |
434 | started from. If nothing is displayed (-1) is returned. */ | |
c906108c | 435 | int |
08ef48c5 MS |
436 | tui_display_registers_from_line (int line_no, |
437 | int force_display) | |
c906108c | 438 | { |
6d012f14 | 439 | if (TUI_DATA_WIN->detail.data_display_info.regs_content_count > 0) |
c906108c | 440 | { |
6ba8e26f | 441 | int line, element_no; |
c906108c | 442 | |
6ba8e26f | 443 | if (line_no < 0) |
c906108c | 444 | line = 0; |
6ba8e26f | 445 | else if (force_display) |
ef5eab5a MS |
446 | { /* If we must display regs (force_display is true), then |
447 | make sure that we don't display off the end of the | |
448 | registers. */ | |
6ba8e26f | 449 | if (line_no >= tui_last_regs_line_no ()) |
c906108c | 450 | { |
55fb0713 | 451 | if ((line = tui_line_from_reg_element_no ( |
6d012f14 | 452 | TUI_DATA_WIN->detail.data_display_info.regs_content_count - 1)) < 0) |
c906108c SS |
453 | line = 0; |
454 | } | |
455 | else | |
6ba8e26f | 456 | line = line_no; |
c906108c SS |
457 | } |
458 | else | |
6ba8e26f | 459 | line = line_no; |
c906108c | 460 | |
6ba8e26f | 461 | element_no = tui_first_reg_element_no_inline (line); |
9a2b4c1b MS |
462 | if (element_no |
463 | < TUI_DATA_WIN->detail.data_display_info.regs_content_count) | |
6ba8e26f | 464 | tui_display_reg_element_at_line (element_no, line); |
c906108c SS |
465 | else |
466 | line = (-1); | |
467 | ||
468 | return line; | |
469 | } | |
470 | ||
1cc6d956 | 471 | return (-1); /* Nothing was displayed. */ |
55fb0713 | 472 | } |
c906108c SS |
473 | |
474 | ||
55fb0713 AC |
475 | /* This function check all displayed registers for changes in values, |
476 | given a particular frame. If the values have changed, they are | |
477 | updated with the new value and highlighted. */ | |
c906108c | 478 | void |
55fb0713 | 479 | tui_check_register_values (struct frame_info *frame) |
c906108c | 480 | { |
e5908723 MS |
481 | if (TUI_DATA_WIN != NULL |
482 | && TUI_DATA_WIN->generic.is_visible) | |
c906108c | 483 | { |
10f59415 SC |
484 | struct tui_data_info *display_info |
485 | = &TUI_DATA_WIN->detail.data_display_info; | |
486 | ||
e5908723 MS |
487 | if (display_info->regs_content_count <= 0 |
488 | && display_info->display_regs) | |
10f59415 | 489 | tui_show_registers (display_info->current_group); |
c906108c SS |
490 | else |
491 | { | |
0043e6a5 | 492 | int i; |
c906108c | 493 | |
10f59415 | 494 | for (i = 0; (i < display_info->regs_content_count); i++) |
c906108c | 495 | { |
10f59415 SC |
496 | struct tui_data_element *data; |
497 | struct tui_gen_win_info *data_item_win_ptr; | |
6ba8e26f | 498 | int was_hilighted; |
c906108c | 499 | |
10f59415 SC |
500 | data_item_win_ptr = &display_info->regs_content[i]-> |
501 | which_element.data_window; | |
63ed8182 | 502 | data = &data_item_win_ptr->content[0]->which_element.data; |
10f59415 SC |
503 | was_hilighted = data->highlight; |
504 | ||
5eccfcc2 | 505 | tui_get_register (frame, data, |
10f59415 SC |
506 | data->item_no, &data->highlight); |
507 | ||
508 | if (data->highlight || was_hilighted) | |
c906108c | 509 | { |
10f59415 | 510 | tui_display_register (data, data_item_win_ptr); |
c906108c SS |
511 | } |
512 | } | |
513 | } | |
514 | } | |
55fb0713 | 515 | } |
c906108c | 516 | |
1cc6d956 MS |
517 | /* Display a register in a window. If hilite is TRUE, then the value |
518 | will be displayed in reverse video. */ | |
10f59415 SC |
519 | static void |
520 | tui_display_register (struct tui_data_element *data, | |
521 | struct tui_gen_win_info *win_info) | |
522 | { | |
523 | if (win_info->handle != (WINDOW *) NULL) | |
524 | { | |
525 | int i; | |
c906108c | 526 | |
10f59415 | 527 | if (data->highlight) |
cae3f17b JB |
528 | /* We ignore the return value, casting it to void in order to avoid |
529 | a compiler warning. The warning itself was introduced by a patch | |
530 | to ncurses 5.7 dated 2009-08-29, changing this macro to expand | |
531 | to code that causes the compiler to generate an unused-value | |
532 | warning. */ | |
ae3bccd4 | 533 | (void) wstandout (win_info->handle); |
10f59415 SC |
534 | |
535 | wmove (win_info->handle, 0, 0); | |
536 | for (i = 1; i < win_info->width; i++) | |
537 | waddch (win_info->handle, ' '); | |
538 | wmove (win_info->handle, 0, 0); | |
539 | if (data->content) | |
540 | waddstr (win_info->handle, data->content); | |
541 | ||
542 | if (data->highlight) | |
cae3f17b JB |
543 | /* We ignore the return value, casting it to void in order to avoid |
544 | a compiler warning. The warning itself was introduced by a patch | |
545 | to ncurses 5.7 dated 2009-08-29, changing this macro to expand | |
546 | to code that causes the compiler to generate an unused-value | |
547 | warning. */ | |
ae3bccd4 | 548 | (void) wstandend (win_info->handle); |
10f59415 SC |
549 | tui_refresh_win (win_info); |
550 | } | |
551 | } | |
552 | ||
51f0e40d AB |
553 | /* Helper for "tui reg next", wraps a call to REGGROUP_NEXT, but adds wrap |
554 | around behaviour. Returns the next register group, or NULL if the | |
555 | register window is not currently being displayed. */ | |
556 | ||
557 | static struct reggroup * | |
558 | tui_reg_next (struct gdbarch *gdbarch) | |
c906108c | 559 | { |
51f0e40d | 560 | struct reggroup *group = NULL; |
e17c207e | 561 | |
b75c69bb | 562 | if (TUI_DATA_WIN != NULL) |
10f59415 | 563 | { |
51f0e40d | 564 | group = TUI_DATA_WIN->detail.data_display_info.current_group; |
e17c207e | 565 | group = reggroup_next (gdbarch, group); |
b75c69bb AB |
566 | if (group == NULL) |
567 | group = reggroup_next (gdbarch, NULL); | |
10f59415 | 568 | } |
51f0e40d | 569 | return group; |
10f59415 SC |
570 | } |
571 | ||
51f0e40d AB |
572 | /* Helper for "tui reg prev", wraps a call to REGGROUP_PREV, but adds wrap |
573 | around behaviour. Returns the previous register group, or NULL if the | |
574 | register window is not currently being displayed. */ | |
55b40027 | 575 | |
51f0e40d AB |
576 | static struct reggroup * |
577 | tui_reg_prev (struct gdbarch *gdbarch) | |
55b40027 | 578 | { |
51f0e40d | 579 | struct reggroup *group = NULL; |
55b40027 AB |
580 | |
581 | if (TUI_DATA_WIN != NULL) | |
582 | { | |
51f0e40d | 583 | group = TUI_DATA_WIN->detail.data_display_info.current_group; |
55b40027 AB |
584 | group = reggroup_prev (gdbarch, group); |
585 | if (group == NULL) | |
586 | group = reggroup_prev (gdbarch, NULL); | |
55b40027 | 587 | } |
51f0e40d | 588 | return group; |
55b40027 AB |
589 | } |
590 | ||
51f0e40d AB |
591 | /* Implement the 'tui reg' command. Changes the register group displayed |
592 | in the tui register window. Displays the tui register window if it is | |
593 | not already on display. */ | |
c906108c | 594 | |
10f59415 | 595 | static void |
e2d8ae16 | 596 | tui_reg_command (const char *args, int from_tty) |
10f59415 | 597 | { |
51f0e40d | 598 | struct gdbarch *gdbarch = get_current_arch (); |
c906108c | 599 | |
51f0e40d AB |
600 | if (args != NULL) |
601 | { | |
602 | struct reggroup *group, *match = NULL; | |
603 | size_t len = strlen (args); | |
604 | ||
605 | /* Make sure the curses mode is enabled. */ | |
606 | tui_enable (); | |
607 | ||
608 | /* Make sure the register window is visible. If not, select an | |
609 | appropriate layout. We need to do this before trying to run the | |
610 | 'next' or 'prev' commands. */ | |
611 | if (TUI_DATA_WIN == NULL || !TUI_DATA_WIN->generic.is_visible) | |
612 | tui_set_layout_by_name (DATA_NAME); | |
613 | ||
614 | if (strncmp (args, "next", len) == 0) | |
615 | match = tui_reg_next (gdbarch); | |
616 | else if (strncmp (args, "prev", len) == 0) | |
617 | match = tui_reg_prev (gdbarch); | |
618 | ||
619 | /* This loop matches on the initial part of a register group | |
620 | name. If this initial part in ARGS matches only one register | |
621 | group then the switch is made. */ | |
622 | for (group = reggroup_next (gdbarch, NULL); | |
623 | group != NULL; | |
624 | group = reggroup_next (gdbarch, group)) | |
625 | { | |
626 | if (strncmp (reggroup_name (group), args, len) == 0) | |
627 | { | |
628 | if (match != NULL) | |
629 | error (_("ambiguous register group name '%s'"), args); | |
630 | match = group; | |
631 | } | |
632 | } | |
633 | ||
634 | if (match == NULL) | |
635 | error (_("unknown register group '%s'"), args); | |
636 | ||
637 | tui_show_registers (match); | |
638 | } | |
639 | else | |
640 | { | |
641 | struct reggroup *group; | |
642 | int first; | |
643 | ||
644 | printf_unfiltered (_("\"tui reg\" must be followed by the name of " | |
645 | "either a register group,\nor one of 'next' " | |
646 | "or 'prev'. Known register groups are:\n")); | |
647 | ||
648 | for (first = 1, group = reggroup_next (gdbarch, NULL); | |
649 | group != NULL; | |
650 | first = 0, group = reggroup_next (gdbarch, group)) | |
651 | { | |
652 | if (!first) | |
653 | printf_unfiltered (", "); | |
654 | printf_unfiltered ("%s", reggroup_name (group)); | |
655 | } | |
656 | ||
657 | printf_unfiltered ("\n"); | |
658 | } | |
10f59415 SC |
659 | } |
660 | ||
51f0e40d AB |
661 | /* Complete names of register groups, and add the special "prev" and "next" |
662 | names. */ | |
c906108c | 663 | |
eb3ff9a5 | 664 | static void |
51f0e40d | 665 | tui_reggroup_completer (struct cmd_list_element *ignore, |
eb3ff9a5 | 666 | completion_tracker &tracker, |
51f0e40d | 667 | const char *text, const char *word) |
10f59415 | 668 | { |
51f0e40d AB |
669 | static const char *extra[] = { "next", "prev", NULL }; |
670 | size_t len = strlen (word); | |
671 | const char **tmp; | |
672 | ||
eb3ff9a5 | 673 | reggroup_completer (ignore, tracker, text, word); |
51f0e40d | 674 | |
eb3ff9a5 | 675 | /* XXXX use complete_on_enum instead? */ |
51f0e40d AB |
676 | for (tmp = extra; *tmp != NULL; ++tmp) |
677 | { | |
678 | if (strncmp (word, *tmp, len) == 0) | |
eb3ff9a5 | 679 | tracker.add_completion (gdb::unique_xmalloc_ptr<char> (xstrdup (*tmp))); |
51f0e40d | 680 | } |
10f59415 | 681 | } |
c906108c SS |
682 | |
683 | void | |
6ba8e26f | 684 | _initialize_tui_regs (void) |
c906108c | 685 | { |
51f0e40d | 686 | struct cmd_list_element **tuicmd, *cmd; |
10f59415 SC |
687 | |
688 | tuicmd = tui_get_cmd_list (); | |
689 | ||
51f0e40d AB |
690 | cmd = add_cmd ("reg", class_tui, tui_reg_command, _("\ |
691 | TUI command to control the register window."), tuicmd); | |
692 | set_cmd_completer (cmd, tui_reggroup_completer); | |
41783295 | 693 | } |
c906108c SS |
694 | |
695 | ||
696 | /***************************************** | |
697 | ** STATIC LOCAL FUNCTIONS ** | |
698 | ******************************************/ | |
699 | ||
6eed1678 PA |
700 | /* Get the register from the frame and return a printable |
701 | representation of it. */ | |
702 | ||
703 | static char * | |
704 | tui_register_format (struct frame_info *frame, int regnum) | |
c906108c | 705 | { |
5eccfcc2 | 706 | struct gdbarch *gdbarch = get_frame_arch (frame); |
d20c1c3f | 707 | |
d7e74731 PA |
708 | string_file stream; |
709 | ||
31b68d4a TT |
710 | scoped_restore save_pagination |
711 | = make_scoped_restore (&pagination_enabled, 0); | |
712 | scoped_restore save_stdout | |
713 | = make_scoped_restore (&gdb_stdout, &stream); | |
714 | ||
d7e74731 | 715 | gdbarch_print_registers_info (gdbarch, &stream, frame, regnum, 1); |
c46cc7df SC |
716 | |
717 | /* Remove the possible \n. */ | |
d7e74731 PA |
718 | std::string &str = stream.string (); |
719 | if (!str.empty () && str.back () == '\n') | |
720 | str.resize (str.size () - 1); | |
c46cc7df | 721 | |
312809f8 | 722 | /* Expand tabs into spaces, since ncurses on MS-Windows doesn't. */ |
31b68d4a | 723 | return tui_expand_tabs (str.c_str (), 0); |
c46cc7df | 724 | } |
c906108c | 725 | |
1cc6d956 MS |
726 | /* Get the register value from the given frame and format it for the |
727 | display. When changep is set, check if the new register value has | |
728 | changed with respect to the previous call. */ | |
22940a24 | 729 | static enum tui_status |
5eccfcc2 | 730 | tui_get_register (struct frame_info *frame, |
08ef48c5 MS |
731 | struct tui_data_element *data, |
732 | int regnum, int *changedp) | |
c906108c | 733 | { |
22940a24 | 734 | enum tui_status ret = TUI_FAILURE; |
c906108c | 735 | |
10f59415 SC |
736 | if (changedp) |
737 | *changedp = FALSE; | |
c906108c SS |
738 | if (target_has_registers) |
739 | { | |
6eed1678 | 740 | char *prev_content = data->content; |
10f59415 | 741 | |
6eed1678 | 742 | data->content = tui_register_format (frame, regnum); |
9c5ea4d9 | 743 | |
6eed1678 PA |
744 | if (changedp != NULL |
745 | && strcmp (prev_content, data->content) != 0) | |
746 | *changedp = 1; | |
d20c1c3f | 747 | |
6eed1678 | 748 | xfree (prev_content); |
9c5ea4d9 UW |
749 | |
750 | ret = TUI_SUCCESS; | |
c906108c | 751 | } |
c906108c | 752 | return ret; |
6ba8e26f | 753 | } |