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Commit | Line | Data |
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f377b406 | 1 | /* TUI display registers in window. |
f33c6cbf | 2 | |
b811d2c2 | 3 | Copyright (C) 1998-2020 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 | |
7a02bab7 TT |
45 | /* A subclass of string_file that expands tab characters. */ |
46 | class tab_expansion_file : public string_file | |
47 | { | |
48 | public: | |
49 | ||
50 | tab_expansion_file () = default; | |
51 | ||
52 | void write (const char *buf, long length_buf) override; | |
53 | ||
54 | private: | |
55 | ||
56 | int m_column = 0; | |
57 | }; | |
58 | ||
59 | void | |
60 | tab_expansion_file::write (const char *buf, long length_buf) | |
61 | { | |
62 | for (long i = 0; i < length_buf; ++i) | |
63 | { | |
64 | if (buf[i] == '\t') | |
65 | { | |
66 | do | |
67 | { | |
68 | string_file::write (" ", 1); | |
69 | ++m_column; | |
70 | } | |
71 | while ((m_column % 8) != 0); | |
72 | } | |
73 | else | |
74 | { | |
75 | string_file::write (&buf[i], 1); | |
76 | if (buf[i] == '\n') | |
77 | m_column = 0; | |
78 | else | |
79 | ++m_column; | |
80 | } | |
81 | } | |
82 | } | |
83 | ||
1a4f81dd TT |
84 | /* Get the register from the frame and return a printable |
85 | representation of it. */ | |
86 | ||
7a02bab7 | 87 | static std::string |
1a4f81dd TT |
88 | tui_register_format (struct frame_info *frame, int regnum) |
89 | { | |
90 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
5eccfcc2 | 91 | |
7a02bab7 TT |
92 | /* Expand tabs into spaces, since ncurses on MS-Windows doesn't. */ |
93 | tab_expansion_file stream; | |
1a4f81dd TT |
94 | |
95 | scoped_restore save_pagination | |
96 | = make_scoped_restore (&pagination_enabled, 0); | |
97 | scoped_restore save_stdout | |
98 | = make_scoped_restore (&gdb_stdout, &stream); | |
99 | ||
100 | gdbarch_print_registers_info (gdbarch, &stream, frame, regnum, 1); | |
101 | ||
102 | /* Remove the possible \n. */ | |
103 | std::string &str = stream.string (); | |
104 | if (!str.empty () && str.back () == '\n') | |
105 | str.resize (str.size () - 1); | |
106 | ||
7a02bab7 | 107 | return str; |
1a4f81dd TT |
108 | } |
109 | ||
110 | /* Get the register value from the given frame and format it for the | |
111 | display. When changep is set, check if the new register value has | |
112 | changed with respect to the previous call. */ | |
113 | static void | |
114 | tui_get_register (struct frame_info *frame, | |
dda83cd7 | 115 | struct tui_data_item_window *data, |
1a4f81dd TT |
116 | int regnum, bool *changedp) |
117 | { | |
118 | if (changedp) | |
119 | *changedp = false; | |
9dccd06e | 120 | if (target_has_registers ()) |
1a4f81dd | 121 | { |
7a02bab7 | 122 | std::string new_content = tui_register_format (frame, regnum); |
1a4f81dd | 123 | |
7a02bab7 | 124 | if (changedp != NULL && data->content != new_content) |
1a4f81dd TT |
125 | *changedp = true; |
126 | ||
b9ad3686 | 127 | data->content = std::move (new_content); |
1a4f81dd TT |
128 | } |
129 | } | |
96bd6233 TT |
130 | |
131 | /* See tui-regs.h. */ | |
132 | ||
c906108c | 133 | int |
0b5ec218 | 134 | tui_data_window::last_regs_line_no () const |
c906108c | 135 | { |
80df3337 TT |
136 | int num_lines = m_regs_content.size () / m_regs_column_count; |
137 | if (m_regs_content.size () % m_regs_column_count) | |
0670413d | 138 | num_lines++; |
6ba8e26f | 139 | return num_lines; |
55fb0713 | 140 | } |
c906108c | 141 | |
18ab23af | 142 | /* See tui-regs.h. */ |
c906108c | 143 | |
c906108c | 144 | int |
3b23c5f2 | 145 | tui_data_window::line_from_reg_element_no (int element_no) const |
c906108c | 146 | { |
80df3337 | 147 | if (element_no < m_regs_content.size ()) |
c906108c SS |
148 | { |
149 | int i, line = (-1); | |
150 | ||
151 | i = 1; | |
152 | while (line == (-1)) | |
153 | { | |
80df3337 | 154 | if (element_no < m_regs_column_count * i) |
c906108c SS |
155 | line = i - 1; |
156 | else | |
157 | i++; | |
158 | } | |
159 | ||
160 | return line; | |
161 | } | |
162 | else | |
163 | return (-1); | |
55fb0713 | 164 | } |
c906108c | 165 | |
18ab23af | 166 | /* See tui-regs.h. */ |
c906108c | 167 | |
c906108c | 168 | int |
baff0c28 | 169 | tui_data_window::first_reg_element_no_inline (int line_no) const |
c906108c | 170 | { |
80df3337 TT |
171 | if (line_no * m_regs_column_count <= m_regs_content.size ()) |
172 | return ((line_no + 1) * m_regs_column_count) - m_regs_column_count; | |
c906108c SS |
173 | else |
174 | return (-1); | |
55fb0713 | 175 | } |
c906108c | 176 | |
10f59415 SC |
177 | /* Show the registers of the given group in the data window |
178 | and refresh the window. */ | |
c906108c | 179 | void |
ca02d7c8 | 180 | tui_data_window::show_registers (struct reggroup *group) |
c906108c | 181 | { |
10f59415 SC |
182 | if (group == 0) |
183 | group = general_reggroup; | |
c906108c | 184 | |
9dccd06e | 185 | if (target_has_registers () && target_has_stack () && target_has_memory ()) |
c906108c | 186 | { |
ca02d7c8 | 187 | show_register_group (group, get_selected_frame (NULL), |
80df3337 | 188 | group == m_current_group); |
368c1354 | 189 | |
1cc6d956 | 190 | /* Clear all notation of changed values. */ |
80df3337 | 191 | for (auto &&data_item_win : m_regs_content) |
fa4dc567 | 192 | data_item_win.highlight = false; |
80df3337 | 193 | m_current_group = group; |
c906108c | 194 | } |
368c1354 TT |
195 | else |
196 | { | |
80df3337 | 197 | m_current_group = 0; |
a31bff9d | 198 | m_regs_content.clear (); |
368c1354 | 199 | } |
a31bff9d TT |
200 | |
201 | rerender (); | |
55fb0713 | 202 | } |
c906108c SS |
203 | |
204 | ||
10f59415 | 205 | /* Set the data window to display the registers of the register group |
1cc6d956 | 206 | using the given frame. Values are refreshed only when |
b5457826 | 207 | refresh_values_only is true. */ |
10f59415 | 208 | |
ca02d7c8 TT |
209 | void |
210 | tui_data_window::show_register_group (struct reggroup *group, | |
211 | struct frame_info *frame, | |
b5457826 | 212 | bool refresh_values_only) |
10f59415 | 213 | { |
5eccfcc2 | 214 | struct gdbarch *gdbarch = get_frame_arch (frame); |
10f59415 | 215 | int nr_regs; |
10f59415 | 216 | int regnum, pos; |
10f59415 SC |
217 | |
218 | /* Make a new title showing which group we display. */ | |
ab0e1f1a | 219 | title = string_printf ("Register group: %s", reggroup_name (group)); |
10f59415 SC |
220 | |
221 | /* See how many registers must be displayed. */ | |
222 | nr_regs = 0; | |
f6efe3f8 | 223 | for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++) |
10f59415 | 224 | { |
d20c1c3f PA |
225 | const char *name; |
226 | ||
227 | /* Must be in the group. */ | |
228 | if (!gdbarch_register_reggroup_p (gdbarch, regnum, group)) | |
229 | continue; | |
230 | ||
231 | /* If the register name is empty, it is undefined for this | |
232 | processor, so don't display anything. */ | |
233 | name = gdbarch_register_name (gdbarch, regnum); | |
234 | if (name == 0 || *name == '\0') | |
235 | continue; | |
236 | ||
237 | nr_regs++; | |
10f59415 SC |
238 | } |
239 | ||
80df3337 | 240 | m_regs_content.resize (nr_regs); |
10f59415 | 241 | |
21e1c91e TT |
242 | /* Now set the register names and values. */ |
243 | pos = 0; | |
244 | for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++) | |
10f59415 | 245 | { |
21e1c91e TT |
246 | struct tui_data_item_window *data_item_win; |
247 | const char *name; | |
10f59415 | 248 | |
21e1c91e TT |
249 | /* Must be in the group. */ |
250 | if (!gdbarch_register_reggroup_p (gdbarch, regnum, group)) | |
251 | continue; | |
10f59415 | 252 | |
21e1c91e TT |
253 | /* If the register name is empty, it is undefined for this |
254 | processor, so don't display anything. */ | |
255 | name = gdbarch_register_name (gdbarch, regnum); | |
256 | if (name == 0 || *name == '\0') | |
257 | continue; | |
10f59415 | 258 | |
80df3337 | 259 | data_item_win = &m_regs_content[pos]; |
c9753adb | 260 | if (!refresh_values_only) |
21e1c91e | 261 | { |
22b7b041 | 262 | data_item_win->regno = regnum; |
c9753adb | 263 | data_item_win->highlight = false; |
21e1c91e | 264 | } |
c9753adb | 265 | tui_get_register (frame, data_item_win, regnum, 0); |
21e1c91e TT |
266 | pos++; |
267 | } | |
10f59415 SC |
268 | } |
269 | ||
18ab23af | 270 | /* See tui-regs.h. */ |
517e9505 | 271 | |
c906108c | 272 | void |
517e9505 | 273 | tui_data_window::display_registers_from (int start_element_no) |
c906108c | 274 | { |
0670413d | 275 | int max_len = 0; |
80df3337 | 276 | for (auto &&data_item_win : m_regs_content) |
c906108c | 277 | { |
7a02bab7 | 278 | int len = data_item_win.content.size (); |
0670413d TT |
279 | |
280 | if (len > max_len) | |
281 | max_len = len; | |
282 | } | |
7134f2eb | 283 | m_item_width = max_len + 1; |
0670413d TT |
284 | int i = start_element_no; |
285 | ||
7134f2eb | 286 | m_regs_column_count = (width - 2) / m_item_width; |
80df3337 TT |
287 | if (m_regs_column_count == 0) |
288 | m_regs_column_count = 1; | |
7134f2eb | 289 | m_item_width = (width - 2) / m_regs_column_count; |
0670413d TT |
290 | |
291 | /* Now create each data "sub" window, and write the display into | |
292 | it. */ | |
7134f2eb | 293 | int cur_y = 1; |
1630140d | 294 | while (i < m_regs_content.size () && cur_y <= height - 2) |
0670413d | 295 | { |
7134f2eb | 296 | for (int j = 0; |
80df3337 | 297 | j < m_regs_column_count && i < m_regs_content.size (); |
0670413d | 298 | j++) |
c906108c | 299 | { |
0670413d | 300 | /* Create the window if necessary. */ |
7134f2eb TT |
301 | m_regs_content[i].x = (m_item_width * j) + 1; |
302 | m_regs_content[i].y = cur_y; | |
303 | m_regs_content[i].visible = true; | |
304 | m_regs_content[i].rerender (handle.get (), m_item_width); | |
0670413d | 305 | i++; /* Next register. */ |
c906108c | 306 | } |
0670413d | 307 | cur_y++; /* Next row. */ |
c906108c | 308 | } |
55fb0713 | 309 | } |
c906108c | 310 | |
18ab23af | 311 | /* See tui-regs.h. */ |
c906108c | 312 | |
aca2dd16 TT |
313 | void |
314 | tui_data_window::display_reg_element_at_line (int start_element_no, | |
315 | int start_line_no) | |
c906108c | 316 | { |
0670413d | 317 | int element_no = start_element_no; |
c906108c | 318 | |
0670413d TT |
319 | if (start_element_no != 0 && start_line_no != 0) |
320 | { | |
321 | int last_line_no, first_line_on_last_page; | |
322 | ||
323 | last_line_no = last_regs_line_no (); | |
324 | first_line_on_last_page = last_line_no - (height - 2); | |
325 | if (first_line_on_last_page < 0) | |
326 | first_line_on_last_page = 0; | |
327 | ||
328 | /* If the element_no causes us to scroll past the end of the | |
329 | registers, adjust what element to really start the | |
330 | display at. */ | |
331 | if (start_line_no > first_line_on_last_page) | |
332 | element_no = first_reg_element_no_inline (first_line_on_last_page); | |
c906108c | 333 | } |
0670413d | 334 | display_registers_from (element_no); |
6ba8e26f | 335 | } |
c906108c | 336 | |
18ab23af | 337 | /* See tui-regs.h. */ |
c906108c | 338 | |
c906108c | 339 | int |
517e9505 | 340 | tui_data_window::display_registers_from_line (int line_no) |
c906108c | 341 | { |
0670413d TT |
342 | int element_no; |
343 | ||
344 | if (line_no < 0) | |
345 | line_no = 0; | |
346 | else | |
347 | { | |
348 | /* Make sure that we don't display off the end of the | |
349 | registers. */ | |
350 | if (line_no >= last_regs_line_no ()) | |
80cb6c27 | 351 | { |
80df3337 | 352 | line_no = line_from_reg_element_no (m_regs_content.size () - 1); |
0670413d TT |
353 | if (line_no < 0) |
354 | line_no = 0; | |
c906108c | 355 | } |
c906108c SS |
356 | } |
357 | ||
0670413d | 358 | element_no = first_reg_element_no_inline (line_no); |
80df3337 | 359 | if (element_no < m_regs_content.size ()) |
0670413d TT |
360 | display_reg_element_at_line (element_no, line_no); |
361 | else | |
362 | line_no = (-1); | |
363 | ||
364 | return line_no; | |
55fb0713 | 365 | } |
c906108c SS |
366 | |
367 | ||
18ab23af TT |
368 | /* Answer the index first element displayed. If none are displayed, |
369 | then return (-1). */ | |
370 | int | |
371 | tui_data_window::first_data_item_displayed () | |
372 | { | |
80df3337 | 373 | for (int i = 0; i < m_regs_content.size (); i++) |
18ab23af | 374 | { |
7134f2eb | 375 | if (m_regs_content[i].visible) |
18ab23af TT |
376 | return i; |
377 | } | |
378 | ||
379 | return -1; | |
380 | } | |
381 | ||
382 | /* See tui-regs.h. */ | |
383 | ||
384 | void | |
385 | tui_data_window::delete_data_content_windows () | |
386 | { | |
7134f2eb TT |
387 | for (auto &win : m_regs_content) |
388 | win.visible = false; | |
18ab23af TT |
389 | } |
390 | ||
391 | ||
392 | void | |
393 | tui_data_window::erase_data_content (const char *prompt) | |
394 | { | |
7523da63 | 395 | werase (handle.get ()); |
b4ef5aeb | 396 | check_and_display_highlight_if_needed (); |
18ab23af TT |
397 | if (prompt != NULL) |
398 | { | |
399 | int half_width = (width - 2) / 2; | |
400 | int x_pos; | |
401 | ||
402 | if (strlen (prompt) >= half_width) | |
403 | x_pos = 1; | |
404 | else | |
405 | x_pos = half_width - strlen (prompt); | |
7523da63 | 406 | mvwaddstr (handle.get (), (height / 2), x_pos, (char *) prompt); |
18ab23af | 407 | } |
45bbae5c | 408 | tui_wrefresh (handle.get ()); |
18ab23af TT |
409 | } |
410 | ||
411 | /* See tui-regs.h. */ | |
412 | ||
413 | void | |
18bb55c7 | 414 | tui_data_window::rerender () |
18ab23af | 415 | { |
80df3337 | 416 | if (m_regs_content.empty ()) |
1f6d2f10 | 417 | erase_data_content (_("[ Register Values Unavailable ]")); |
18ab23af TT |
418 | else |
419 | { | |
420 | erase_data_content (NULL); | |
421 | delete_data_content_windows (); | |
18ab23af TT |
422 | display_registers_from (0); |
423 | } | |
424 | } | |
425 | ||
426 | ||
18ab23af TT |
427 | /* Scroll the data window vertically forward or backward. */ |
428 | void | |
429 | tui_data_window::do_scroll_vertical (int num_to_scroll) | |
430 | { | |
431 | int first_element_no; | |
432 | int first_line = (-1); | |
433 | ||
434 | first_element_no = first_data_item_displayed (); | |
80df3337 | 435 | if (first_element_no < m_regs_content.size ()) |
18ab23af TT |
436 | first_line = line_from_reg_element_no (first_element_no); |
437 | else | |
438 | { /* Calculate the first line from the element number which is in | |
dda83cd7 | 439 | the general data content. */ |
18ab23af TT |
440 | } |
441 | ||
442 | if (first_line >= 0) | |
443 | { | |
444 | first_line += num_to_scroll; | |
445 | erase_data_content (NULL); | |
446 | delete_data_content_windows (); | |
447 | display_registers_from_line (first_line); | |
448 | } | |
449 | } | |
450 | ||
55fb0713 AC |
451 | /* This function check all displayed registers for changes in values, |
452 | given a particular frame. If the values have changed, they are | |
453 | updated with the new value and highlighted. */ | |
c906108c | 454 | void |
63356bfd | 455 | tui_data_window::check_register_values (struct frame_info *frame) |
c906108c | 456 | { |
80df3337 TT |
457 | if (m_regs_content.empty ()) |
458 | show_registers (m_current_group); | |
63356bfd | 459 | else |
c906108c | 460 | { |
80df3337 | 461 | for (auto &&data_item_win : m_regs_content) |
c906108c | 462 | { |
63356bfd | 463 | int was_hilighted; |
c906108c | 464 | |
fa4dc567 | 465 | was_hilighted = data_item_win.highlight; |
10f59415 | 466 | |
fa4dc567 | 467 | tui_get_register (frame, &data_item_win, |
22b7b041 | 468 | data_item_win.regno, |
fa4dc567 | 469 | &data_item_win.highlight); |
10f59415 | 470 | |
fa4dc567 | 471 | if (data_item_win.highlight || was_hilighted) |
7134f2eb | 472 | data_item_win.rerender (handle.get (), m_item_width); |
c906108c SS |
473 | } |
474 | } | |
7134f2eb TT |
475 | |
476 | tui_wrefresh (handle.get ()); | |
55fb0713 | 477 | } |
c906108c | 478 | |
1cc6d956 MS |
479 | /* Display a register in a window. If hilite is TRUE, then the value |
480 | will be displayed in reverse video. */ | |
cdaa6eb4 | 481 | void |
7134f2eb | 482 | tui_data_item_window::rerender (WINDOW *handle, int field_width) |
10f59415 | 483 | { |
cdaa6eb4 TT |
484 | if (highlight) |
485 | /* We ignore the return value, casting it to void in order to avoid | |
486 | a compiler warning. The warning itself was introduced by a patch | |
487 | to ncurses 5.7 dated 2009-08-29, changing this macro to expand | |
488 | to code that causes the compiler to generate an unused-value | |
489 | warning. */ | |
7134f2eb | 490 | (void) wstandout (handle); |
10f59415 | 491 | |
7134f2eb TT |
492 | mvwaddnstr (handle, y, x, content.c_str (), field_width - 1); |
493 | waddstr (handle, n_spaces (field_width - content.size ())); | |
cdaa6eb4 TT |
494 | |
495 | if (highlight) | |
496 | /* We ignore the return value, casting it to void in order to avoid | |
497 | a compiler warning. The warning itself was introduced by a patch | |
498 | to ncurses 5.7 dated 2009-08-29, changing this macro to expand | |
499 | to code that causes the compiler to generate an unused-value | |
500 | warning. */ | |
7134f2eb | 501 | (void) wstandend (handle); |
10f59415 SC |
502 | } |
503 | ||
51f0e40d AB |
504 | /* Helper for "tui reg next", wraps a call to REGGROUP_NEXT, but adds wrap |
505 | around behaviour. Returns the next register group, or NULL if the | |
506 | register window is not currently being displayed. */ | |
507 | ||
508 | static struct reggroup * | |
fe3eaf1c | 509 | tui_reg_next (struct reggroup *current_group, struct gdbarch *gdbarch) |
c906108c | 510 | { |
51f0e40d | 511 | struct reggroup *group = NULL; |
e17c207e | 512 | |
fe3eaf1c | 513 | if (current_group != NULL) |
10f59415 | 514 | { |
fe3eaf1c | 515 | group = reggroup_next (gdbarch, current_group); |
b75c69bb | 516 | if (group == NULL) |
dda83cd7 | 517 | group = reggroup_next (gdbarch, NULL); |
10f59415 | 518 | } |
51f0e40d | 519 | return group; |
10f59415 SC |
520 | } |
521 | ||
51f0e40d AB |
522 | /* Helper for "tui reg prev", wraps a call to REGGROUP_PREV, but adds wrap |
523 | around behaviour. Returns the previous register group, or NULL if the | |
524 | register window is not currently being displayed. */ | |
55b40027 | 525 | |
51f0e40d | 526 | static struct reggroup * |
fe3eaf1c | 527 | tui_reg_prev (struct reggroup *current_group, struct gdbarch *gdbarch) |
55b40027 | 528 | { |
51f0e40d | 529 | struct reggroup *group = NULL; |
55b40027 | 530 | |
fe3eaf1c | 531 | if (current_group != NULL) |
55b40027 | 532 | { |
fe3eaf1c | 533 | group = reggroup_prev (gdbarch, current_group); |
55b40027 AB |
534 | if (group == NULL) |
535 | group = reggroup_prev (gdbarch, NULL); | |
55b40027 | 536 | } |
51f0e40d | 537 | return group; |
55b40027 AB |
538 | } |
539 | ||
51f0e40d AB |
540 | /* Implement the 'tui reg' command. Changes the register group displayed |
541 | in the tui register window. Displays the tui register window if it is | |
542 | not already on display. */ | |
c906108c | 543 | |
10f59415 | 544 | static void |
e2d8ae16 | 545 | tui_reg_command (const char *args, int from_tty) |
10f59415 | 546 | { |
51f0e40d | 547 | struct gdbarch *gdbarch = get_current_arch (); |
c906108c | 548 | |
51f0e40d AB |
549 | if (args != NULL) |
550 | { | |
551 | struct reggroup *group, *match = NULL; | |
552 | size_t len = strlen (args); | |
553 | ||
554 | /* Make sure the curses mode is enabled. */ | |
555 | tui_enable (); | |
556 | ||
45bbae5c TT |
557 | tui_suppress_output suppress; |
558 | ||
51f0e40d AB |
559 | /* Make sure the register window is visible. If not, select an |
560 | appropriate layout. We need to do this before trying to run the | |
561 | 'next' or 'prev' commands. */ | |
2d83e710 | 562 | if (TUI_DATA_WIN == NULL || !TUI_DATA_WIN->is_visible ()) |
0dbc2fc7 | 563 | tui_regs_layout (); |
51f0e40d | 564 | |
89df7f90 | 565 | struct reggroup *current_group = TUI_DATA_WIN->get_current_group (); |
51f0e40d | 566 | if (strncmp (args, "next", len) == 0) |
fe3eaf1c | 567 | match = tui_reg_next (current_group, gdbarch); |
51f0e40d | 568 | else if (strncmp (args, "prev", len) == 0) |
fe3eaf1c | 569 | match = tui_reg_prev (current_group, gdbarch); |
51f0e40d AB |
570 | |
571 | /* This loop matches on the initial part of a register group | |
572 | name. If this initial part in ARGS matches only one register | |
573 | group then the switch is made. */ | |
574 | for (group = reggroup_next (gdbarch, NULL); | |
575 | group != NULL; | |
576 | group = reggroup_next (gdbarch, group)) | |
577 | { | |
578 | if (strncmp (reggroup_name (group), args, len) == 0) | |
579 | { | |
580 | if (match != NULL) | |
581 | error (_("ambiguous register group name '%s'"), args); | |
582 | match = group; | |
583 | } | |
584 | } | |
585 | ||
586 | if (match == NULL) | |
587 | error (_("unknown register group '%s'"), args); | |
588 | ||
ca02d7c8 | 589 | TUI_DATA_WIN->show_registers (match); |
51f0e40d AB |
590 | } |
591 | else | |
592 | { | |
593 | struct reggroup *group; | |
594 | int first; | |
595 | ||
596 | printf_unfiltered (_("\"tui reg\" must be followed by the name of " | |
597 | "either a register group,\nor one of 'next' " | |
598 | "or 'prev'. Known register groups are:\n")); | |
599 | ||
600 | for (first = 1, group = reggroup_next (gdbarch, NULL); | |
601 | group != NULL; | |
602 | first = 0, group = reggroup_next (gdbarch, group)) | |
603 | { | |
604 | if (!first) | |
605 | printf_unfiltered (", "); | |
606 | printf_unfiltered ("%s", reggroup_name (group)); | |
607 | } | |
608 | ||
609 | printf_unfiltered ("\n"); | |
610 | } | |
10f59415 SC |
611 | } |
612 | ||
51f0e40d AB |
613 | /* Complete names of register groups, and add the special "prev" and "next" |
614 | names. */ | |
c906108c | 615 | |
eb3ff9a5 | 616 | static void |
51f0e40d | 617 | tui_reggroup_completer (struct cmd_list_element *ignore, |
eb3ff9a5 | 618 | completion_tracker &tracker, |
51f0e40d | 619 | const char *text, const char *word) |
10f59415 | 620 | { |
ea68593b | 621 | static const char * const extra[] = { "next", "prev", NULL }; |
51f0e40d | 622 | |
eb3ff9a5 | 623 | reggroup_completer (ignore, tracker, text, word); |
51f0e40d | 624 | |
ea68593b | 625 | complete_on_enum (tracker, extra, text, word); |
10f59415 | 626 | } |
c906108c | 627 | |
6c265988 | 628 | void _initialize_tui_regs (); |
18ab23af | 629 | void |
6c265988 | 630 | _initialize_tui_regs () |
18ab23af TT |
631 | { |
632 | struct cmd_list_element **tuicmd, *cmd; | |
633 | ||
634 | tuicmd = tui_get_cmd_list (); | |
635 | ||
636 | cmd = add_cmd ("reg", class_tui, tui_reg_command, _("\ | |
283be8bf TT |
637 | TUI command to control the register window.\n\ |
638 | Usage: tui reg NAME\n\ | |
639 | NAME is the name of the register group to display"), tuicmd); | |
18ab23af TT |
640 | set_cmd_completer (cmd, tui_reggroup_completer); |
641 | } |