Commit | Line | Data |
---|---|---|
f377b406 | 1 | /* TUI display locator. |
f33c6cbf | 2 | |
8acc9f48 | 3 | Copyright (C) 1998-2013 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 "symtab.h" | |
24 | #include "breakpoint.h" | |
25 | #include "frame.h" | |
75fd9bc1 | 26 | #include "command.h" |
50265402 SC |
27 | #include "inferior.h" |
28 | #include "target.h" | |
7563e053 | 29 | #include "top.h" |
50f182aa | 30 | #include "gdb-demangle.h" |
0e9f083f | 31 | #include <string.h> |
56d397a3 | 32 | #include "source.h" |
d7b2e967 AC |
33 | #include "tui/tui.h" |
34 | #include "tui/tui-data.h" | |
35 | #include "tui/tui-stack.h" | |
36 | #include "tui/tui-wingeneral.h" | |
37 | #include "tui/tui-source.h" | |
38 | #include "tui/tui-winsource.h" | |
39 | #include "tui/tui-file.h" | |
c906108c | 40 | |
6a83354a | 41 | #include "gdb_curses.h" |
c906108c | 42 | |
5564c769 SC |
43 | /* Get a printable name for the function at the address. |
44 | The symbol name is demangled if demangling is turned on. | |
45 | Returns a pointer to a static area holding the result. */ | |
5b6fe301 | 46 | static char *tui_get_function_from_frame (struct frame_info *fi); |
c906108c | 47 | |
56d397a3 JK |
48 | /* Set the full_name portion of the locator. */ |
49 | static void tui_set_locator_fullname (const char *fullname); | |
2e17b763 SC |
50 | |
51 | /* Update the locator, with the provided arguments. */ | |
13274fc3 | 52 | static void tui_set_locator_info (struct gdbarch *gdbarch, |
56d397a3 | 53 | const char *fullname, |
08ef48c5 | 54 | const char *procname, |
7d6dd1e9 | 55 | int lineno, CORE_ADDR addr); |
2e17b763 | 56 | |
7563e053 | 57 | static void tui_update_command (char *, int); |
7d6dd1e9 | 58 | \f |
c906108c | 59 | |
1cc6d956 MS |
60 | /* Create the status line to display as much information as we can on |
61 | this single line: target name, process number, current function, | |
62 | current line, current PC, SingleKey mode. */ | |
50265402 | 63 | static char* |
5b6fe301 | 64 | tui_make_status_line (struct tui_locator_element *loc) |
50265402 | 65 | { |
5b6fe301 | 66 | char *string; |
a42a37b7 | 67 | char line_buf[50], *pname; |
5b6fe301 | 68 | char *buf; |
a42a37b7 | 69 | int status_size; |
50265402 | 70 | int i, proc_width; |
5b6fe301 MS |
71 | const char *pid_name; |
72 | const char *pc_buf; | |
50265402 SC |
73 | int target_width; |
74 | int pid_width; | |
75 | int line_width; | |
76 | int pc_width; | |
77 | struct ui_file *pc_out; | |
78 | ||
79 | if (ptid_equal (inferior_ptid, null_ptid)) | |
80 | pid_name = "No process"; | |
81 | else | |
82 | pid_name = target_pid_to_str (inferior_ptid); | |
83 | ||
84 | target_width = strlen (target_shortname); | |
85 | if (target_width > MAX_TARGET_WIDTH) | |
86 | target_width = MAX_TARGET_WIDTH; | |
87 | ||
88 | pid_width = strlen (pid_name); | |
89 | if (pid_width > MAX_PID_WIDTH) | |
90 | pid_width = MAX_PID_WIDTH; | |
a42a37b7 | 91 | |
dd1abb8c | 92 | status_size = tui_term_width (); |
50265402 | 93 | string = (char *) xmalloc (status_size + 1); |
a42a37b7 | 94 | buf = (char*) alloca (status_size + 1); |
50265402 SC |
95 | |
96 | /* Translate line number and obtain its size. */ | |
6d012f14 | 97 | if (loc->line_no > 0) |
8c042590 | 98 | xsnprintf (line_buf, sizeof (line_buf), "%d", loc->line_no); |
50265402 SC |
99 | else |
100 | strcpy (line_buf, "??"); | |
101 | line_width = strlen (line_buf); | |
102 | if (line_width < MIN_LINE_WIDTH) | |
103 | line_width = MIN_LINE_WIDTH; | |
104 | ||
105 | /* Translate PC address. */ | |
106 | pc_out = tui_sfileopen (128); | |
2d5f09f0 UW |
107 | fputs_filtered (loc->gdbarch? paddress (loc->gdbarch, loc->addr) : "??", |
108 | pc_out); | |
50265402 SC |
109 | pc_buf = tui_file_get_strbuf (pc_out); |
110 | pc_width = strlen (pc_buf); | |
111 | ||
112 | /* First determine the amount of proc name width we have available. | |
113 | The +1 are for a space separator between fields. | |
114 | The -1 are to take into account the \0 counted by sizeof. */ | |
115 | proc_width = (status_size | |
116 | - (target_width + 1) | |
117 | - (pid_width + 1) | |
118 | - (sizeof (PROC_PREFIX) - 1 + 1) | |
119 | - (sizeof (LINE_PREFIX) - 1 + line_width + 1) | |
120 | - (sizeof (PC_PREFIX) - 1 + pc_width + 1) | |
6d012f14 | 121 | - (tui_current_key_mode == TUI_SINGLE_KEY_MODE |
50265402 SC |
122 | ? (sizeof (SINGLE_KEY) - 1 + 1) |
123 | : 0)); | |
124 | ||
125 | /* If there is no room to print the function name, try by removing | |
126 | some fields. */ | |
127 | if (proc_width < MIN_PROC_WIDTH) | |
128 | { | |
129 | proc_width += target_width + 1; | |
130 | target_width = 0; | |
131 | if (proc_width < MIN_PROC_WIDTH) | |
132 | { | |
133 | proc_width += pid_width + 1; | |
134 | pid_width = 0; | |
135 | if (proc_width <= MIN_PROC_WIDTH) | |
136 | { | |
137 | proc_width += pc_width + sizeof (PC_PREFIX) - 1 + 1; | |
138 | pc_width = 0; | |
139 | if (proc_width < 0) | |
140 | { | |
141 | proc_width += line_width + sizeof (LINE_PREFIX) - 1 + 1; | |
142 | line_width = 0; | |
143 | if (proc_width < 0) | |
144 | proc_width = 0; | |
145 | } | |
146 | } | |
147 | } | |
148 | } | |
149 | ||
1cc6d956 | 150 | /* Now convert elements to string form. */ |
6d012f14 | 151 | pname = loc->proc_name; |
50265402 | 152 | |
1cc6d956 MS |
153 | /* Now create the locator line from the string version of the |
154 | elements. We could use sprintf() here but that wouldn't ensure | |
155 | that we don't overrun the size of the allocated buffer. | |
156 | strcat_to_buf() will. */ | |
50265402 SC |
157 | *string = (char) 0; |
158 | ||
159 | if (target_width > 0) | |
160 | { | |
161 | sprintf (buf, "%*.*s ", | |
162 | -target_width, target_width, target_shortname); | |
163 | strcat_to_buf (string, status_size, buf); | |
164 | } | |
165 | if (pid_width > 0) | |
166 | { | |
167 | sprintf (buf, "%*.*s ", | |
168 | -pid_width, pid_width, pid_name); | |
169 | strcat_to_buf (string, status_size, buf); | |
170 | } | |
171 | ||
172 | /* Show whether we are in SingleKey mode. */ | |
6d012f14 | 173 | if (tui_current_key_mode == TUI_SINGLE_KEY_MODE) |
50265402 SC |
174 | { |
175 | strcat_to_buf (string, status_size, SINGLE_KEY); | |
176 | strcat_to_buf (string, status_size, " "); | |
177 | } | |
178 | ||
1cc6d956 | 179 | /* Procedure/class name. */ |
50265402 SC |
180 | if (proc_width > 0) |
181 | { | |
182 | if (strlen (pname) > proc_width) | |
183 | sprintf (buf, "%s%*.*s* ", PROC_PREFIX, | |
184 | 1 - proc_width, proc_width - 1, pname); | |
185 | else | |
186 | sprintf (buf, "%s%*.*s ", PROC_PREFIX, | |
187 | -proc_width, proc_width, pname); | |
188 | strcat_to_buf (string, status_size, buf); | |
189 | } | |
190 | ||
191 | if (line_width > 0) | |
192 | { | |
193 | sprintf (buf, "%s%*.*s ", LINE_PREFIX, | |
194 | -line_width, line_width, line_buf); | |
195 | strcat_to_buf (string, status_size, buf); | |
196 | } | |
197 | if (pc_width > 0) | |
198 | { | |
199 | strcat_to_buf (string, status_size, PC_PREFIX); | |
200 | strcat_to_buf (string, status_size, pc_buf); | |
201 | } | |
202 | ||
203 | ||
204 | for (i = strlen (string); i < status_size; i++) | |
205 | string[i] = ' '; | |
206 | string[status_size] = (char) 0; | |
207 | ||
208 | ui_file_delete (pc_out); | |
209 | return string; | |
210 | } | |
211 | ||
1cc6d956 MS |
212 | /* Get a printable name for the function at the address. The symbol |
213 | name is demangled if demangling is turned on. Returns a pointer to | |
214 | a static area holding the result. */ | |
5564c769 SC |
215 | static char* |
216 | tui_get_function_from_frame (struct frame_info *fi) | |
217 | { | |
218 | static char name[256]; | |
219 | struct ui_file *stream = tui_sfileopen (256); | |
220 | char *p; | |
221 | ||
22e722e1 DJ |
222 | print_address_symbolic (get_frame_arch (fi), get_frame_pc (fi), |
223 | stream, demangle, ""); | |
5564c769 SC |
224 | p = tui_file_get_strbuf (stream); |
225 | ||
1cc6d956 MS |
226 | /* Use simple heuristics to isolate the function name. The symbol |
227 | can be demangled and we can have function parameters. Remove | |
228 | them because the status line is too short to display them. */ | |
5564c769 SC |
229 | if (*p == '<') |
230 | p++; | |
086dbf66 | 231 | strncpy (name, p, sizeof (name) - 1); |
4e2af517 | 232 | name[sizeof (name) - 1] = 0; |
5564c769 SC |
233 | p = strchr (name, '('); |
234 | if (!p) | |
235 | p = strchr (name, '>'); | |
236 | if (p) | |
237 | *p = 0; | |
238 | p = strchr (name, '+'); | |
239 | if (p) | |
240 | *p = 0; | |
241 | ui_file_delete (stream); | |
242 | return name; | |
243 | } | |
c906108c | 244 | |
c906108c | 245 | void |
47d3492a | 246 | tui_show_locator_content (void) |
c906108c SS |
247 | { |
248 | char *string; | |
5b6fe301 | 249 | struct tui_gen_win_info *locator; |
c906108c | 250 | |
dd1abb8c | 251 | locator = tui_locator_win_info_ptr (); |
c906108c | 252 | |
6d012f14 | 253 | if (locator != NULL && locator->handle != (WINDOW *) NULL) |
c906108c | 254 | { |
5b6fe301 | 255 | struct tui_win_element *element; |
50265402 | 256 | |
2a8854a7 | 257 | element = (struct tui_win_element *) locator->content[0]; |
50265402 | 258 | |
6d012f14 | 259 | string = tui_make_status_line (&element->which_element.locator); |
50265402 | 260 | wmove (locator->handle, 0, 0); |
cae3f17b JB |
261 | /* We ignore the return value from wstandout and wstandend, casting |
262 | them to void in order to avoid a compiler warning. The warning | |
263 | itself was introduced by a patch to ncurses 5.7 dated 2009-08-29, | |
264 | changing these macro to expand to code that causes the compiler | |
265 | to generate an unused-value warning. */ | |
ae3bccd4 | 266 | (void) wstandout (locator->handle); |
50265402 SC |
267 | waddstr (locator->handle, string); |
268 | wclrtoeol (locator->handle); | |
ae3bccd4 | 269 | (void) wstandend (locator->handle); |
ec7d9e56 | 270 | tui_refresh_win (locator); |
50265402 SC |
271 | wmove (locator->handle, 0, 0); |
272 | xfree (string); | |
6d012f14 | 273 | locator->content_in_use = TRUE; |
c906108c | 274 | } |
50265402 | 275 | } |
c906108c | 276 | |
c906108c | 277 | |
2e17b763 SC |
278 | /* Set the filename portion of the locator. */ |
279 | static void | |
56d397a3 | 280 | tui_set_locator_fullname (const char *fullname) |
2e17b763 | 281 | { |
5b6fe301 MS |
282 | struct tui_gen_win_info *locator = tui_locator_win_info_ptr (); |
283 | struct tui_locator_element *element; | |
2e17b763 | 284 | |
22940a24 | 285 | if (locator->content[0] == NULL) |
7d6dd1e9 | 286 | { |
56d397a3 | 287 | tui_set_locator_info (NULL, fullname, NULL, 0, 0); |
7d6dd1e9 SC |
288 | return; |
289 | } | |
2e17b763 | 290 | |
9a2b4c1b MS |
291 | element = &((struct tui_win_element *) |
292 | locator->content[0])->which_element.locator; | |
56d397a3 JK |
293 | element->full_name[0] = 0; |
294 | strcat_to_buf (element->full_name, MAX_LOCATOR_ELEMENT_LEN, fullname); | |
2e17b763 | 295 | } |
c906108c | 296 | |
c7c228ed | 297 | /* Update the locator, with the provided arguments. */ |
2e17b763 | 298 | static void |
13274fc3 | 299 | tui_set_locator_info (struct gdbarch *gdbarch, |
56d397a3 | 300 | const char *fullname, |
08ef48c5 MS |
301 | const char *procname, |
302 | int lineno, | |
7d6dd1e9 | 303 | CORE_ADDR addr) |
c906108c | 304 | { |
5b6fe301 MS |
305 | struct tui_gen_win_info *locator = tui_locator_win_info_ptr (); |
306 | struct tui_locator_element *element; | |
7d6dd1e9 SC |
307 | |
308 | /* Allocate the locator content if necessary. */ | |
6d012f14 | 309 | if (locator->content_size <= 0) |
7d6dd1e9 | 310 | { |
22940a24 | 311 | locator->content = (void **) tui_alloc_content (1, locator->type); |
6d012f14 | 312 | locator->content_size = 1; |
7d6dd1e9 SC |
313 | } |
314 | ||
9a2b4c1b MS |
315 | element = &((struct tui_win_element *) |
316 | locator->content[0])->which_element.locator; | |
6d012f14 AC |
317 | element->proc_name[0] = (char) 0; |
318 | strcat_to_buf (element->proc_name, MAX_LOCATOR_ELEMENT_LEN, procname); | |
319 | element->line_no = lineno; | |
c774cec6 | 320 | element->addr = addr; |
13274fc3 | 321 | element->gdbarch = gdbarch; |
56d397a3 | 322 | tui_set_locator_fullname (fullname); |
c7c228ed | 323 | } |
c906108c | 324 | |
56d397a3 | 325 | /* Update only the full_name portion of the locator. */ |
c906108c | 326 | void |
56d397a3 | 327 | tui_update_locator_fullname (const char *fullname) |
c906108c | 328 | { |
56d397a3 | 329 | tui_set_locator_fullname (fullname); |
47d3492a | 330 | tui_show_locator_content (); |
2e17b763 | 331 | } |
c906108c | 332 | |
7d6dd1e9 | 333 | /* Function to print the frame information for the TUI. */ |
c906108c | 334 | void |
47d3492a | 335 | tui_show_frame_info (struct frame_info *fi) |
c906108c | 336 | { |
5b6fe301 | 337 | struct tui_win_info *win_info; |
d02c80cd | 338 | int i; |
c906108c SS |
339 | |
340 | if (fi) | |
341 | { | |
d02c80cd | 342 | int start_line, i; |
c906108c | 343 | CORE_ADDR low; |
5b6fe301 | 344 | struct tui_gen_win_info *locator = tui_locator_win_info_ptr (); |
6ba8e26f | 345 | int source_already_displayed; |
7d6dd1e9 | 346 | struct symtab_and_line sal; |
e3eebbd7 | 347 | CORE_ADDR pc; |
7d6dd1e9 | 348 | |
3d7442da | 349 | find_frame_sal (fi, &sal); |
7d6dd1e9 | 350 | |
6ba8e26f | 351 | source_already_displayed = sal.symtab != 0 |
56d397a3 | 352 | && tui_source_is_displayed (symtab_to_fullname (sal.symtab)); |
e3eebbd7 PA |
353 | |
354 | if (get_frame_pc_if_available (fi, &pc)) | |
355 | tui_set_locator_info (get_frame_arch (fi), | |
56d397a3 JK |
356 | (sal.symtab == 0 |
357 | ? "??" : symtab_to_fullname (sal.symtab)), | |
e3eebbd7 PA |
358 | tui_get_function_from_frame (fi), |
359 | sal.line, | |
360 | pc); | |
361 | else | |
362 | tui_set_locator_info (get_frame_arch (fi), | |
363 | "??", _("<unavailable>"), sal.line, 0); | |
364 | ||
47d3492a | 365 | tui_show_locator_content (); |
6d012f14 | 366 | start_line = 0; |
dd1abb8c | 367 | for (i = 0; i < (tui_source_windows ())->count; i++) |
c906108c | 368 | { |
2a8854a7 | 369 | union tui_which_element *item; |
1c5313c5 | 370 | |
96c1eda2 | 371 | win_info = (tui_source_windows ())->list[i]; |
a4b99e53 | 372 | |
9a2b4c1b MS |
373 | item = &((struct tui_win_element *) |
374 | locator->content[0])->which_element; | |
6d012f14 | 375 | if (win_info == TUI_SRC_WIN) |
c906108c | 376 | { |
6d012f14 AC |
377 | start_line = (item->locator.line_no - |
378 | (win_info->generic.viewport_height / 2)) + 1; | |
379 | if (start_line <= 0) | |
380 | start_line = 1; | |
c906108c SS |
381 | } |
382 | else | |
383 | { | |
2c02bd72 DE |
384 | if (find_pc_partial_function (get_frame_pc (fi), |
385 | (const char **) NULL, | |
87177905 | 386 | &low, (CORE_ADDR) 0) == 0) |
c04b3e8f JK |
387 | { |
388 | /* There is no symbol available for current PC. There is no | |
389 | safe way how to "disassemble backwards". */ | |
390 | low = get_frame_pc (fi); | |
391 | } | |
c906108c | 392 | else |
13274fc3 UW |
393 | low = tui_get_low_disassembly_address (get_frame_arch (fi), |
394 | low, get_frame_pc (fi)); | |
c906108c SS |
395 | } |
396 | ||
6d012f14 | 397 | if (win_info == TUI_SRC_WIN) |
c906108c | 398 | { |
362c05fe | 399 | struct tui_line_or_address l; |
1c5313c5 | 400 | |
362c05fe AS |
401 | l.loa = LOA_LINE; |
402 | l.u.line_no = start_line; | |
6ba8e26f | 403 | if (!(source_already_displayed |
9a2b4c1b MS |
404 | && tui_line_is_displayed (item->locator.line_no, |
405 | win_info, TRUE))) | |
13274fc3 UW |
406 | tui_update_source_window (win_info, get_frame_arch (fi), |
407 | sal.symtab, l, TRUE); | |
c906108c | 408 | else |
a4b99e53 | 409 | { |
362c05fe | 410 | l.u.line_no = item->locator.line_no; |
6d012f14 | 411 | tui_set_is_exec_point_at (l, win_info); |
a4b99e53 | 412 | } |
c906108c SS |
413 | } |
414 | else | |
415 | { | |
6d012f14 | 416 | if (win_info == TUI_DISASM_WIN) |
c906108c | 417 | { |
362c05fe | 418 | struct tui_line_or_address a; |
1c5313c5 | 419 | |
362c05fe AS |
420 | a.loa = LOA_ADDRESS; |
421 | a.u.addr = low; | |
9a2b4c1b MS |
422 | if (!tui_addr_is_displayed (item->locator.addr, |
423 | win_info, TRUE)) | |
13274fc3 UW |
424 | tui_update_source_window (win_info, get_frame_arch (fi), |
425 | sal.symtab, a, TRUE); | |
c906108c | 426 | else |
a4b99e53 | 427 | { |
362c05fe | 428 | a.u.addr = item->locator.addr; |
6d012f14 | 429 | tui_set_is_exec_point_at (a, win_info); |
a4b99e53 | 430 | } |
c906108c SS |
431 | } |
432 | } | |
6d012f14 | 433 | tui_update_exec_info (win_info); |
c906108c SS |
434 | } |
435 | } | |
436 | else | |
437 | { | |
13274fc3 | 438 | tui_set_locator_info (NULL, NULL, NULL, 0, (CORE_ADDR) 0); |
47d3492a | 439 | tui_show_locator_content (); |
dd1abb8c | 440 | for (i = 0; i < (tui_source_windows ())->count; i++) |
c906108c | 441 | { |
96c1eda2 | 442 | win_info = (tui_source_windows ())->list[i]; |
6d012f14 AC |
443 | tui_clear_source_content (win_info, EMPTY_SOURCE_PROMPT); |
444 | tui_update_exec_info (win_info); | |
c906108c SS |
445 | } |
446 | } | |
7d6dd1e9 | 447 | } |
c906108c | 448 | |
6ba8e26f AC |
449 | /* Function to initialize gdb commands, for tui window stack |
450 | manipulation. */ | |
2c0b251b PA |
451 | |
452 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
453 | extern initialize_file_ftype _initialize_tui_stack; | |
454 | ||
c906108c | 455 | void |
6ba8e26f | 456 | _initialize_tui_stack (void) |
c906108c | 457 | { |
9a2b4c1b MS |
458 | add_com ("update", class_tui, tui_update_command, |
459 | _("Update the source window and locator to " | |
460 | "display the current execution point.\n")); | |
41783295 | 461 | } |
c906108c | 462 | |
7563e053 | 463 | /* Command to update the display with the current execution point. */ |
c906108c | 464 | static void |
7563e053 | 465 | tui_update_command (char *arg, int from_tty) |
c906108c | 466 | { |
7563e053 | 467 | char cmd[sizeof("frame 0")]; |
c906108c | 468 | |
7563e053 SC |
469 | strcpy (cmd, "frame 0"); |
470 | execute_command (cmd, from_tty); | |
471 | } |