Commit | Line | Data |
---|---|---|
f377b406 | 1 | /* TUI display source/assembly window. |
f33c6cbf | 2 | |
42a4f53d | 3 | Copyright (C) 1998-2019 Free Software Foundation, Inc. |
f33c6cbf | 4 | |
f377b406 SC |
5 | Contributed by Hewlett-Packard Company. |
6 | ||
7 | This file is part of GDB. | |
8 | ||
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" | |
23 | #include <ctype.h> | |
24 | #include "symtab.h" | |
25 | #include "frame.h" | |
26 | #include "breakpoint.h" | |
fd0407d6 | 27 | #include "value.h" |
52575520 | 28 | #include "source.h" |
13274fc3 | 29 | #include "objfiles.h" |
a7417d46 | 30 | #include "filenames.h" |
c906108c | 31 | |
d7b2e967 AC |
32 | #include "tui/tui.h" |
33 | #include "tui/tui-data.h" | |
62f29fda | 34 | #include "tui/tui-io.h" |
d7b2e967 AC |
35 | #include "tui/tui-stack.h" |
36 | #include "tui/tui-win.h" | |
37 | #include "tui/tui-wingeneral.h" | |
38 | #include "tui/tui-winsource.h" | |
39 | #include "tui/tui-source.h" | |
40 | #include "tui/tui-disasm.h" | |
6a83354a | 41 | #include "gdb_curses.h" |
c906108c | 42 | |
1f393769 | 43 | /* Function to display the "main" routine. */ |
c906108c | 44 | void |
b4eb2452 | 45 | tui_display_main () |
c906108c | 46 | { |
3891b65e TT |
47 | auto adapter = tui_source_windows (); |
48 | if (adapter.begin () != adapter.end ()) | |
c906108c | 49 | { |
13274fc3 | 50 | struct gdbarch *gdbarch; |
c906108c SS |
51 | CORE_ADDR addr; |
52 | ||
13274fc3 | 53 | tui_get_begin_asm_address (&gdbarch, &addr); |
c774cec6 | 54 | if (addr != (CORE_ADDR) 0) |
c906108c | 55 | { |
34248c3a | 56 | struct symtab *s; |
c906108c | 57 | |
13274fc3 | 58 | tui_update_source_windows_with_addr (gdbarch, addr); |
34248c3a | 59 | s = find_pc_line_symtab (addr); |
c1b167d7 | 60 | tui_update_locator_fullname (s); |
c906108c SS |
61 | } |
62 | } | |
2e17b763 | 63 | } |
c906108c | 64 | |
1df2f9ef | 65 | /* See tui-winsource.h. */ |
c906108c | 66 | |
1df2f9ef TT |
67 | std::string |
68 | tui_copy_source_line (const char **ptr, int line_no, int first_col, | |
d1da6b01 | 69 | int line_width, int ndigits) |
1df2f9ef TT |
70 | { |
71 | const char *lineptr = *ptr; | |
72 | ||
73 | /* Init the line with the line number. */ | |
74 | std::string result; | |
75 | ||
76 | if (line_no > 0) | |
77 | { | |
d1da6b01 TT |
78 | if (ndigits > 0) |
79 | result = string_printf ("%*d ", ndigits, line_no); | |
80 | else | |
81 | { | |
82 | result = string_printf ("%-6d", line_no); | |
83 | int len = result.size (); | |
84 | len = len - ((len / tui_tab_width) * tui_tab_width); | |
85 | result.append (len, ' '); | |
86 | } | |
1df2f9ef TT |
87 | } |
88 | ||
89 | int column = 0; | |
90 | char c; | |
91 | do | |
92 | { | |
93 | int skip_bytes; | |
94 | ||
95 | c = *lineptr; | |
96 | if (c == '\033' && skip_ansi_escape (lineptr, &skip_bytes)) | |
97 | { | |
98 | /* We always have to preserve escapes. */ | |
99 | result.append (lineptr, lineptr + skip_bytes); | |
100 | lineptr += skip_bytes; | |
101 | continue; | |
102 | } | |
517d261d TT |
103 | if (c == '\0') |
104 | break; | |
1df2f9ef TT |
105 | |
106 | ++lineptr; | |
107 | ++column; | |
108 | ||
109 | auto process_tab = [&] () | |
110 | { | |
111 | int max_tab_len = tui_tab_width; | |
112 | ||
113 | --column; | |
114 | for (int j = column % max_tab_len; | |
115 | j < max_tab_len && column < first_col + line_width; | |
116 | column++, j++) | |
117 | if (column >= first_col) | |
118 | result.push_back (' '); | |
119 | }; | |
120 | ||
121 | /* We have to process all the text in order to pick up all the | |
122 | escapes. */ | |
123 | if (column <= first_col || column > first_col + line_width) | |
124 | { | |
125 | if (c == '\t') | |
126 | process_tab (); | |
127 | continue; | |
128 | } | |
129 | ||
130 | if (c == '\n' || c == '\r' || c == '\0') | |
131 | { | |
132 | /* Nothing. */ | |
133 | } | |
134 | else if (c < 040 && c != '\t') | |
135 | { | |
136 | result.push_back ('^'); | |
137 | result.push_back (c + 0100); | |
138 | } | |
139 | else if (c == 0177) | |
140 | { | |
141 | result.push_back ('^'); | |
142 | result.push_back ('?'); | |
143 | } | |
144 | else if (c == '\t') | |
145 | process_tab (); | |
146 | else | |
147 | result.push_back (c); | |
148 | } | |
149 | while (c != '\0' && c != '\n' && c != '\r'); | |
150 | ||
151 | if (c == '\r' && *lineptr == '\n') | |
152 | ++lineptr; | |
153 | *ptr = lineptr; | |
154 | ||
155 | return result; | |
156 | } | |
157 | ||
158 | void | |
159 | tui_source_window_base::style_changed () | |
160 | { | |
161 | if (tui_active && is_visible ()) | |
162 | refill (); | |
163 | } | |
c906108c | 164 | |
f80bda8e AC |
165 | /* Function to display source in the source window. This function |
166 | initializes the horizontal scroll to 0. */ | |
c906108c | 167 | void |
017f9828 TT |
168 | tui_source_window_base::update_source_window |
169 | (struct gdbarch *gdbarch, | |
9f7540a5 | 170 | const struct symtab_and_line &sal) |
c906108c | 171 | { |
017f9828 | 172 | horizontal_offset = 0; |
9f7540a5 | 173 | update_source_window_as_is (gdbarch, sal); |
f80bda8e | 174 | } |
c906108c SS |
175 | |
176 | ||
f80bda8e AC |
177 | /* Function to display source in the source/asm window. This function |
178 | shows the source as specified by the horizontal offset. */ | |
c906108c | 179 | void |
ed8358e9 TT |
180 | tui_source_window_base::update_source_window_as_is |
181 | (struct gdbarch *gdbarch, | |
9f7540a5 | 182 | const struct symtab_and_line &sal) |
c906108c | 183 | { |
9f7540a5 | 184 | bool ret = set_contents (gdbarch, sal); |
c906108c | 185 | |
61c33f10 | 186 | if (!ret) |
ed8358e9 | 187 | erase_source_content (); |
c906108c SS |
188 | else |
189 | { | |
2ddaf614 | 190 | update_breakpoint_info (nullptr, false); |
ed8358e9 TT |
191 | show_source_content (); |
192 | update_exec_info (); | |
c906108c | 193 | } |
f80bda8e | 194 | } |
c906108c SS |
195 | |
196 | ||
f80bda8e AC |
197 | /* Function to ensure that the source and/or disassemly windows |
198 | reflect the input address. */ | |
c906108c | 199 | void |
13274fc3 | 200 | tui_update_source_windows_with_addr (struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 201 | { |
88180c08 | 202 | struct symtab_and_line sal {}; |
c774cec6 | 203 | if (addr != 0) |
88180c08 | 204 | sal = find_pc_line (addr, 0); |
8acfefcc | 205 | |
88180c08 TT |
206 | for (struct tui_source_window_base *win_info : tui_source_windows ()) |
207 | win_info->update_source_window (gdbarch, sal); | |
6ba8e26f | 208 | } |
c906108c | 209 | |
5d49bf1b TT |
210 | /* Function to ensure that the source and/or disassembly windows |
211 | reflect the symtab and line. */ | |
c906108c | 212 | void |
5d49bf1b | 213 | tui_update_source_windows_with_line (struct symtab_and_line sal) |
c906108c | 214 | { |
5d49bf1b | 215 | if (!sal.symtab) |
13274fc3 UW |
216 | return; |
217 | ||
5d49bf1b TT |
218 | find_line_pc (sal.symtab, sal.line, &sal.pc); |
219 | struct gdbarch *gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); | |
13274fc3 | 220 | |
5d49bf1b TT |
221 | for (struct tui_source_window_base *win_info : tui_source_windows ()) |
222 | win_info->update_source_window (gdbarch, sal); | |
f80bda8e | 223 | } |
c906108c | 224 | |
c906108c | 225 | void |
e25d2004 | 226 | tui_source_window_base::do_erase_source_content (const char *str) |
c906108c | 227 | { |
6ba8e26f | 228 | int x_pos; |
e25d2004 | 229 | int half_width = (width - 2) / 2; |
c906108c | 230 | |
c398c3d0 | 231 | content.clear (); |
e25d2004 | 232 | if (handle != NULL) |
c906108c | 233 | { |
7523da63 | 234 | werase (handle.get ()); |
e25d2004 | 235 | check_and_display_highlight_if_needed (); |
caf0bc4e | 236 | |
e25d2004 | 237 | if (strlen (str) >= half_width) |
caf0bc4e TT |
238 | x_pos = 1; |
239 | else | |
e25d2004 | 240 | x_pos = half_width - strlen (str); |
7523da63 | 241 | mvwaddstr (handle.get (), |
e25d2004 | 242 | (height / 2), |
caf0bc4e | 243 | x_pos, |
e25d2004 | 244 | (char *) str); |
93858ad3 | 245 | |
e25d2004 | 246 | refresh_window (); |
c906108c | 247 | } |
6ba8e26f | 248 | } |
c906108c SS |
249 | |
250 | ||
bc712bbf SC |
251 | /* Redraw the complete line of a source or disassembly window. */ |
252 | static void | |
53e7cdba | 253 | tui_show_source_line (struct tui_source_window_base *win_info, int lineno) |
bc712bbf | 254 | { |
53e7cdba | 255 | struct tui_source_element *line; |
798e1c30 | 256 | int x; |
bc712bbf | 257 | |
53e7cdba TT |
258 | line = &win_info->content[lineno - 1]; |
259 | if (line->is_exec_point) | |
7523da63 | 260 | tui_set_reverse_mode (win_info->handle.get (), true); |
bc712bbf | 261 | |
7523da63 | 262 | wmove (win_info->handle.get (), lineno, TUI_EXECINFO_SIZE); |
5d051055 | 263 | tui_puts (line->line.c_str (), win_info->handle.get ()); |
53e7cdba | 264 | if (line->is_exec_point) |
7523da63 | 265 | tui_set_reverse_mode (win_info->handle.get (), false); |
bc712bbf SC |
266 | |
267 | /* Clear to end of line but stop before the border. */ | |
7523da63 | 268 | x = getcurx (win_info->handle.get ()); |
cb2ce893 | 269 | while (x + 1 < win_info->width) |
798e1c30 | 270 | { |
7523da63 TT |
271 | waddch (win_info->handle.get (), ' '); |
272 | x = getcurx (win_info->handle.get ()); | |
798e1c30 | 273 | } |
bc712bbf SC |
274 | } |
275 | ||
c906108c | 276 | void |
0bd27e07 | 277 | tui_source_window_base::show_source_content () |
c906108c | 278 | { |
2ad52f6f | 279 | gdb_assert (!content.empty ()); |
bc712bbf | 280 | |
2ad52f6f TT |
281 | for (int lineno = 1; lineno <= content.size (); lineno++) |
282 | tui_show_source_line (this, lineno); | |
bc712bbf | 283 | |
0bd27e07 TT |
284 | check_and_display_highlight_if_needed (); |
285 | refresh_window (); | |
bc712bbf | 286 | } |
c906108c | 287 | |
5104fe36 | 288 | tui_source_window_base::tui_source_window_base (enum tui_win_type type) |
398fdd60 | 289 | : tui_win_info (type) |
5104fe36 TT |
290 | { |
291 | gdb_assert (type == SRC_WIN || type == DISASSEM_WIN); | |
292 | start_line_or_addr.loa = LOA_ADDRESS; | |
293 | start_line_or_addr.u.addr = 0; | |
1df2f9ef TT |
294 | |
295 | gdb::observers::source_styling_changed.attach | |
296 | (std::bind (&tui_source_window::style_changed, this), | |
297 | m_observable); | |
5104fe36 TT |
298 | } |
299 | ||
1df2f9ef TT |
300 | tui_source_window_base::~tui_source_window_base () |
301 | { | |
302 | gdb::observers::source_styling_changed.detach (m_observable); | |
303 | } | |
5104fe36 | 304 | |
5104fe36 TT |
305 | /* See tui-data.h. */ |
306 | ||
5104fe36 TT |
307 | void |
308 | tui_source_window_base::update_tab_width () | |
309 | { | |
7523da63 | 310 | werase (handle.get ()); |
3df505f6 | 311 | rerender (); |
5104fe36 TT |
312 | } |
313 | ||
5104fe36 | 314 | void |
3df505f6 | 315 | tui_source_window_base::rerender () |
5104fe36 | 316 | { |
5104fe36 TT |
317 | if (!content.empty ()) |
318 | { | |
5104fe36 TT |
319 | struct symtab_and_line cursal |
320 | = get_current_source_symtab_and_line (); | |
321 | ||
9f7540a5 TT |
322 | if (start_line_or_addr.loa == LOA_LINE) |
323 | cursal.line = start_line_or_addr.u.line_no; | |
324 | else | |
325 | cursal.pc = start_line_or_addr.u.addr; | |
326 | update_source_window (gdbarch, cursal); | |
5104fe36 TT |
327 | } |
328 | else if (deprecated_safe_get_selected_frame () != NULL) | |
329 | { | |
5104fe36 TT |
330 | struct symtab_and_line cursal |
331 | = get_current_source_symtab_and_line (); | |
332 | struct frame_info *frame = deprecated_safe_get_selected_frame (); | |
333 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
334 | ||
335 | struct symtab *s = find_pc_line_symtab (get_frame_pc (frame)); | |
9f7540a5 TT |
336 | if (type != SRC_WIN) |
337 | find_line_pc (s, cursal.line, &cursal.pc); | |
338 | update_source_window (gdbarch, cursal); | |
5104fe36 | 339 | } |
3df505f6 TT |
340 | else |
341 | erase_source_content (); | |
5104fe36 TT |
342 | } |
343 | ||
344 | /* See tui-data.h. */ | |
345 | ||
6f11e682 | 346 | void |
ad54d15b | 347 | tui_source_window_base::refill () |
6f11e682 | 348 | { |
9f7540a5 | 349 | symtab_and_line sal {}; |
6f11e682 | 350 | |
cb2ce893 | 351 | if (type == SRC_WIN) |
6f11e682 | 352 | { |
9f7540a5 TT |
353 | sal = get_current_source_symtab_and_line (); |
354 | if (sal.symtab == NULL) | |
355 | sal = find_pc_line (get_frame_pc (get_selected_frame (NULL)), 0); | |
6f11e682 TT |
356 | } |
357 | ||
9f7540a5 TT |
358 | if (sal.pspace == nullptr) |
359 | sal.pspace = current_program_space; | |
360 | ||
361 | if (start_line_or_addr.loa == LOA_LINE) | |
362 | sal.line = start_line_or_addr.u.line_no; | |
363 | else | |
364 | sal.pc = start_line_or_addr.u.addr; | |
365 | ||
366 | update_source_window_as_is (gdbarch, sal); | |
6f11e682 | 367 | } |
c906108c | 368 | |
f80bda8e | 369 | /* Scroll the source forward or backward horizontally. */ |
6f11e682 | 370 | |
c906108c | 371 | void |
c3bd716f | 372 | tui_source_window_base::do_scroll_horizontal (int num_to_scroll) |
c906108c | 373 | { |
53e7cdba | 374 | if (!content.empty ()) |
c906108c | 375 | { |
c3bd716f TT |
376 | int offset = horizontal_offset + num_to_scroll; |
377 | if (offset < 0) | |
378 | offset = 0; | |
e6e41501 | 379 | horizontal_offset = offset; |
ad54d15b | 380 | refill (); |
c906108c | 381 | } |
6ba8e26f | 382 | } |
c906108c SS |
383 | |
384 | ||
0598af48 | 385 | /* Set or clear the is_exec_point flag in the line whose line is |
1cc6d956 MS |
386 | line_no. */ |
387 | ||
c906108c | 388 | void |
ad54d15b | 389 | tui_source_window_base::set_is_exec_point_at (struct tui_line_or_address l) |
c906108c | 390 | { |
02c28df0 | 391 | bool changed = false; |
c906108c | 392 | int i; |
c906108c SS |
393 | |
394 | i = 0; | |
53e7cdba | 395 | while (i < content.size ()) |
c906108c | 396 | { |
02c28df0 | 397 | bool new_state; |
362c05fe | 398 | struct tui_line_or_address content_loa = |
53e7cdba | 399 | content[i].line_or_addr; |
362c05fe | 400 | |
362c05fe AS |
401 | if (content_loa.loa == l.loa |
402 | && ((l.loa == LOA_LINE && content_loa.u.line_no == l.u.line_no) | |
f7952c57 | 403 | || (l.loa == LOA_ADDRESS && content_loa.u.addr == l.u.addr))) |
02c28df0 | 404 | new_state = true; |
c906108c | 405 | else |
02c28df0 | 406 | new_state = false; |
53e7cdba | 407 | if (new_state != content[i].is_exec_point) |
00b90ae2 | 408 | { |
02c28df0 | 409 | changed = true; |
53e7cdba | 410 | content[i].is_exec_point = new_state; |
ad54d15b | 411 | tui_show_source_line (this, i + 1); |
00b90ae2 | 412 | } |
c906108c SS |
413 | i++; |
414 | } | |
00b90ae2 | 415 | if (changed) |
ad54d15b | 416 | refill (); |
00b90ae2 | 417 | } |
c906108c | 418 | |
0807ab7b TT |
419 | /* See tui-winsource.h. */ |
420 | ||
c906108c | 421 | void |
0807ab7b | 422 | tui_update_all_breakpoint_info (struct breakpoint *being_deleted) |
c906108c | 423 | { |
ad54d15b | 424 | for (tui_source_window_base *win : tui_source_windows ()) |
c906108c | 425 | { |
2ddaf614 TT |
426 | if (win->update_breakpoint_info (being_deleted, false)) |
427 | win->update_exec_info (); | |
c906108c | 428 | } |
00b2bad4 | 429 | } |
c906108c SS |
430 | |
431 | ||
0807ab7b | 432 | /* Scan the source window and the breakpoints to update the break_mode |
1cc6d956 MS |
433 | information for each line. |
434 | ||
0807ab7b | 435 | Returns true if something changed and the execution window must be |
1cc6d956 MS |
436 | refreshed. */ |
437 | ||
0807ab7b | 438 | bool |
2ddaf614 TT |
439 | tui_source_window_base::update_breakpoint_info |
440 | (struct breakpoint *being_deleted, bool current_only) | |
c906108c SS |
441 | { |
442 | int i; | |
0807ab7b | 443 | bool need_refresh = false; |
c906108c | 444 | |
2ddaf614 | 445 | for (i = 0; i < content.size (); i++) |
00b2bad4 | 446 | { |
5b6fe301 | 447 | struct tui_source_element *line; |
00b2bad4 | 448 | |
2ddaf614 | 449 | line = &content[i]; |
6d012f14 | 450 | if (current_only && !line->is_exec_point) |
00b2bad4 SC |
451 | continue; |
452 | ||
453 | /* Scan each breakpoint to see if the current line has something to | |
454 | do with it. Identify enable/disabled breakpoints as well as | |
455 | those that we already hit. */ | |
0598af48 | 456 | tui_bp_flags mode = 0; |
81e6b8eb | 457 | iterate_over_breakpoints ([&] (breakpoint *bp) -> bool |
00b2bad4 | 458 | { |
f8eba3c6 TT |
459 | struct bp_location *loc; |
460 | ||
0807ab7b | 461 | if (bp == being_deleted) |
81e6b8eb | 462 | return false; |
0807ab7b | 463 | |
f8eba3c6 TT |
464 | for (loc = bp->loc; loc != NULL; loc = loc->next) |
465 | { | |
2ddaf614 | 466 | if (location_matches_p (loc, i)) |
f8eba3c6 TT |
467 | { |
468 | if (bp->enable_state == bp_disabled) | |
469 | mode |= TUI_BP_DISABLED; | |
470 | else | |
471 | mode |= TUI_BP_ENABLED; | |
472 | if (bp->hit_count) | |
473 | mode |= TUI_BP_HIT; | |
474 | if (bp->loc->cond) | |
475 | mode |= TUI_BP_CONDITIONAL; | |
476 | if (bp->type == bp_hardware_breakpoint) | |
477 | mode |= TUI_BP_HARDWARE; | |
478 | } | |
479 | } | |
81e6b8eb CB |
480 | return false; |
481 | }); | |
0598af48 | 482 | if (line->break_mode != mode) |
00b2bad4 | 483 | { |
0598af48 TT |
484 | line->break_mode = mode; |
485 | need_refresh = true; | |
00b2bad4 SC |
486 | } |
487 | } | |
488 | return need_refresh; | |
489 | } | |
c906108c | 490 | |
6ba8e26f AC |
491 | /* Function to initialize the content of the execution info window, |
492 | based upon the input window which is either the source or | |
493 | disassembly window. */ | |
73fbdc65 | 494 | void |
5216580d | 495 | tui_source_window_base::update_exec_info () |
c906108c | 496 | { |
2ddaf614 | 497 | update_breakpoint_info (nullptr, true); |
37a4a131 | 498 | for (int i = 0; i < content.size (); i++) |
098f9ed4 | 499 | { |
5216580d TT |
500 | struct tui_source_element *src_element = &content[i]; |
501 | char element[TUI_EXECINFO_SIZE] = " "; | |
098f9ed4 TT |
502 | |
503 | /* Now update the exec info content based upon the state | |
504 | of each line as indicated by the source content. */ | |
5216580d | 505 | tui_bp_flags mode = src_element->break_mode; |
098f9ed4 TT |
506 | if (mode & TUI_BP_HIT) |
507 | element[TUI_BP_HIT_POS] = (mode & TUI_BP_HARDWARE) ? 'H' : 'B'; | |
508 | else if (mode & (TUI_BP_ENABLED | TUI_BP_DISABLED)) | |
509 | element[TUI_BP_HIT_POS] = (mode & TUI_BP_HARDWARE) ? 'h' : 'b'; | |
510 | ||
511 | if (mode & TUI_BP_ENABLED) | |
512 | element[TUI_BP_BREAK_POS] = '+'; | |
513 | else if (mode & TUI_BP_DISABLED) | |
514 | element[TUI_BP_BREAK_POS] = '-'; | |
515 | ||
516 | if (src_element->is_exec_point) | |
517 | element[TUI_EXEC_POS] = '>'; | |
c906108c | 518 | |
7523da63 | 519 | mvwaddstr (handle.get (), i + 1, 1, element); |
5216580d | 520 | } |
398fdd60 | 521 | refresh_window (); |
f80bda8e | 522 | } |