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Commit | Line | Data |
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f377b406 | 1 | /* TUI display locator. |
f33c6cbf AC |
2 | |
3 | Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, | |
4 | Inc. | |
5 | ||
f377b406 SC |
6 | Contributed by Hewlett-Packard Company. |
7 | ||
8 | This file is part of GDB. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | Boston, MA 02111-1307, USA. */ | |
c906108c | 24 | |
f33c6cbf AC |
25 | /* FIXME: cagney/2002-02-28: The GDB coding standard indicates that |
26 | "defs.h" should be included first. Unfortunatly some systems | |
27 | (currently Debian GNU/Linux) include the <stdbool.h> via <curses.h> | |
28 | and they clash with "bfd.h"'s definiton of true/false. The correct | |
29 | fix is to remove true/false from "bfd.h", however, until that | |
30 | happens, hack around it by including "config.h" and <curses.h> | |
31 | first. */ | |
32 | ||
4e8f7a8b DJ |
33 | #include "config.h" |
34 | #ifdef HAVE_NCURSES_H | |
35 | #include <ncurses.h> | |
36 | #else | |
37 | #ifdef HAVE_CURSES_H | |
38 | #include <curses.h> | |
39 | #endif | |
40 | #endif | |
41 | ||
c906108c SS |
42 | #include "defs.h" |
43 | #include "symtab.h" | |
44 | #include "breakpoint.h" | |
45 | #include "frame.h" | |
75fd9bc1 | 46 | #include "command.h" |
50265402 SC |
47 | #include "inferior.h" |
48 | #include "target.h" | |
7563e053 | 49 | #include "top.h" |
c906108c SS |
50 | |
51 | #include "tui.h" | |
52 | #include "tuiData.h" | |
53 | #include "tuiStack.h" | |
75fd9bc1 SC |
54 | #include "tuiGeneralWin.h" |
55 | #include "tuiSource.h" | |
c906108c | 56 | #include "tuiSourceWin.h" |
5564c769 | 57 | #include "tui-file.h" |
c906108c SS |
58 | |
59 | ||
5564c769 SC |
60 | /* Get a printable name for the function at the address. |
61 | The symbol name is demangled if demangling is turned on. | |
62 | Returns a pointer to a static area holding the result. */ | |
63 | static char* tui_get_function_from_frame (struct frame_info *fi); | |
c906108c | 64 | |
2e17b763 SC |
65 | /* Set the filename portion of the locator. */ |
66 | static void tui_set_locator_filename (const char *filename); | |
67 | ||
68 | /* Update the locator, with the provided arguments. */ | |
69 | static void tui_set_locator_info (const char *filename, const char *procname, | |
7d6dd1e9 | 70 | int lineno, CORE_ADDR addr); |
2e17b763 | 71 | |
7563e053 | 72 | static void tui_update_command (char *, int); |
7d6dd1e9 | 73 | \f |
c906108c | 74 | |
50265402 SC |
75 | /* Create the status line to display as much information as we |
76 | can on this single line: target name, process number, current | |
77 | function, current line, current PC, SingleKey mode. */ | |
78 | static char* | |
79 | tui_make_status_line (TuiLocatorElement* loc) | |
80 | { | |
81 | char* string; | |
a42a37b7 SC |
82 | char line_buf[50], *pname; |
83 | char* buf; | |
84 | int status_size; | |
50265402 SC |
85 | int i, proc_width; |
86 | const char* pid_name; | |
87 | const char* pc_buf; | |
88 | int target_width; | |
89 | int pid_width; | |
90 | int line_width; | |
91 | int pc_width; | |
92 | struct ui_file *pc_out; | |
93 | ||
94 | if (ptid_equal (inferior_ptid, null_ptid)) | |
95 | pid_name = "No process"; | |
96 | else | |
97 | pid_name = target_pid_to_str (inferior_ptid); | |
98 | ||
99 | target_width = strlen (target_shortname); | |
100 | if (target_width > MAX_TARGET_WIDTH) | |
101 | target_width = MAX_TARGET_WIDTH; | |
102 | ||
103 | pid_width = strlen (pid_name); | |
104 | if (pid_width > MAX_PID_WIDTH) | |
105 | pid_width = MAX_PID_WIDTH; | |
a42a37b7 SC |
106 | |
107 | status_size = termWidth (); | |
50265402 | 108 | string = (char *) xmalloc (status_size + 1); |
a42a37b7 | 109 | buf = (char*) alloca (status_size + 1); |
50265402 SC |
110 | |
111 | /* Translate line number and obtain its size. */ | |
112 | if (loc->lineNo > 0) | |
113 | sprintf (line_buf, "%d", loc->lineNo); | |
114 | else | |
115 | strcpy (line_buf, "??"); | |
116 | line_width = strlen (line_buf); | |
117 | if (line_width < MIN_LINE_WIDTH) | |
118 | line_width = MIN_LINE_WIDTH; | |
119 | ||
120 | /* Translate PC address. */ | |
121 | pc_out = tui_sfileopen (128); | |
122 | print_address_numeric (loc->addr, 1, pc_out); | |
123 | pc_buf = tui_file_get_strbuf (pc_out); | |
124 | pc_width = strlen (pc_buf); | |
125 | ||
126 | /* First determine the amount of proc name width we have available. | |
127 | The +1 are for a space separator between fields. | |
128 | The -1 are to take into account the \0 counted by sizeof. */ | |
129 | proc_width = (status_size | |
130 | - (target_width + 1) | |
131 | - (pid_width + 1) | |
132 | - (sizeof (PROC_PREFIX) - 1 + 1) | |
133 | - (sizeof (LINE_PREFIX) - 1 + line_width + 1) | |
134 | - (sizeof (PC_PREFIX) - 1 + pc_width + 1) | |
135 | - (tui_current_key_mode == tui_single_key_mode | |
136 | ? (sizeof (SINGLE_KEY) - 1 + 1) | |
137 | : 0)); | |
138 | ||
139 | /* If there is no room to print the function name, try by removing | |
140 | some fields. */ | |
141 | if (proc_width < MIN_PROC_WIDTH) | |
142 | { | |
143 | proc_width += target_width + 1; | |
144 | target_width = 0; | |
145 | if (proc_width < MIN_PROC_WIDTH) | |
146 | { | |
147 | proc_width += pid_width + 1; | |
148 | pid_width = 0; | |
149 | if (proc_width <= MIN_PROC_WIDTH) | |
150 | { | |
151 | proc_width += pc_width + sizeof (PC_PREFIX) - 1 + 1; | |
152 | pc_width = 0; | |
153 | if (proc_width < 0) | |
154 | { | |
155 | proc_width += line_width + sizeof (LINE_PREFIX) - 1 + 1; | |
156 | line_width = 0; | |
157 | if (proc_width < 0) | |
158 | proc_width = 0; | |
159 | } | |
160 | } | |
161 | } | |
162 | } | |
163 | ||
164 | /* Now convert elements to string form */ | |
165 | pname = loc->procName; | |
166 | ||
167 | /* Now create the locator line from the string version | |
168 | of the elements. We could use sprintf() here but | |
169 | that wouldn't ensure that we don't overrun the size | |
170 | of the allocated buffer. strcat_to_buf() will. */ | |
171 | *string = (char) 0; | |
172 | ||
173 | if (target_width > 0) | |
174 | { | |
175 | sprintf (buf, "%*.*s ", | |
176 | -target_width, target_width, target_shortname); | |
177 | strcat_to_buf (string, status_size, buf); | |
178 | } | |
179 | if (pid_width > 0) | |
180 | { | |
181 | sprintf (buf, "%*.*s ", | |
182 | -pid_width, pid_width, pid_name); | |
183 | strcat_to_buf (string, status_size, buf); | |
184 | } | |
185 | ||
186 | /* Show whether we are in SingleKey mode. */ | |
187 | if (tui_current_key_mode == tui_single_key_mode) | |
188 | { | |
189 | strcat_to_buf (string, status_size, SINGLE_KEY); | |
190 | strcat_to_buf (string, status_size, " "); | |
191 | } | |
192 | ||
193 | /* procedure/class name */ | |
194 | if (proc_width > 0) | |
195 | { | |
196 | if (strlen (pname) > proc_width) | |
197 | sprintf (buf, "%s%*.*s* ", PROC_PREFIX, | |
198 | 1 - proc_width, proc_width - 1, pname); | |
199 | else | |
200 | sprintf (buf, "%s%*.*s ", PROC_PREFIX, | |
201 | -proc_width, proc_width, pname); | |
202 | strcat_to_buf (string, status_size, buf); | |
203 | } | |
204 | ||
205 | if (line_width > 0) | |
206 | { | |
207 | sprintf (buf, "%s%*.*s ", LINE_PREFIX, | |
208 | -line_width, line_width, line_buf); | |
209 | strcat_to_buf (string, status_size, buf); | |
210 | } | |
211 | if (pc_width > 0) | |
212 | { | |
213 | strcat_to_buf (string, status_size, PC_PREFIX); | |
214 | strcat_to_buf (string, status_size, pc_buf); | |
215 | } | |
216 | ||
217 | ||
218 | for (i = strlen (string); i < status_size; i++) | |
219 | string[i] = ' '; | |
220 | string[status_size] = (char) 0; | |
221 | ||
222 | ui_file_delete (pc_out); | |
223 | return string; | |
224 | } | |
225 | ||
5564c769 SC |
226 | /* Get a printable name for the function at the address. |
227 | The symbol name is demangled if demangling is turned on. | |
228 | Returns a pointer to a static area holding the result. */ | |
229 | static char* | |
230 | tui_get_function_from_frame (struct frame_info *fi) | |
231 | { | |
232 | static char name[256]; | |
233 | struct ui_file *stream = tui_sfileopen (256); | |
234 | char *p; | |
235 | ||
236 | print_address_symbolic (fi->pc, stream, demangle, ""); | |
237 | p = tui_file_get_strbuf (stream); | |
238 | ||
239 | /* Use simple heuristics to isolate the function name. The symbol can | |
240 | be demangled and we can have function parameters. Remove them because | |
241 | the status line is too short to display them. */ | |
242 | if (*p == '<') | |
243 | p++; | |
244 | strncpy (name, p, sizeof (name)); | |
245 | p = strchr (name, '('); | |
246 | if (!p) | |
247 | p = strchr (name, '>'); | |
248 | if (p) | |
249 | *p = 0; | |
250 | p = strchr (name, '+'); | |
251 | if (p) | |
252 | *p = 0; | |
253 | ui_file_delete (stream); | |
254 | return name; | |
255 | } | |
c906108c | 256 | |
c906108c | 257 | /* |
c5aa993b JM |
258 | ** tuiShowLocatorContent() |
259 | */ | |
c906108c | 260 | void |
c906108c | 261 | tuiShowLocatorContent (void) |
c906108c SS |
262 | { |
263 | char *string; | |
264 | TuiGenWinInfoPtr locator; | |
265 | ||
266 | locator = locatorWinInfoPtr (); | |
267 | ||
268 | if (m_genWinPtrNotNull (locator) && locator->handle != (WINDOW *) NULL) | |
269 | { | |
50265402 SC |
270 | TuiWinElementPtr element; |
271 | ||
272 | element = (TuiWinElementPtr) locator->content[0]; | |
273 | ||
274 | string = tui_make_status_line (&element->whichElement.locator); | |
275 | wmove (locator->handle, 0, 0); | |
276 | wstandout (locator->handle); | |
277 | waddstr (locator->handle, string); | |
278 | wclrtoeol (locator->handle); | |
279 | wstandend (locator->handle); | |
280 | tuiRefreshWin (locator); | |
281 | wmove (locator->handle, 0, 0); | |
282 | xfree (string); | |
283 | locator->contentInUse = TRUE; | |
c906108c | 284 | } |
50265402 | 285 | } |
c906108c | 286 | |
c906108c | 287 | |
2e17b763 SC |
288 | /* Set the filename portion of the locator. */ |
289 | static void | |
290 | tui_set_locator_filename (const char *filename) | |
291 | { | |
292 | TuiGenWinInfoPtr locator = locatorWinInfoPtr (); | |
293 | TuiLocatorElementPtr element; | |
294 | ||
295 | if (locator->content[0] == (Opaque) NULL) | |
7d6dd1e9 SC |
296 | { |
297 | tui_set_locator_info (filename, NULL, 0, 0); | |
298 | return; | |
299 | } | |
2e17b763 SC |
300 | |
301 | element = &((TuiWinElementPtr) locator->content[0])->whichElement.locator; | |
302 | element->fileName[0] = 0; | |
303 | strcat_to_buf (element->fileName, MAX_LOCATOR_ELEMENT_LEN, filename); | |
304 | } | |
c906108c | 305 | |
c7c228ed | 306 | /* Update the locator, with the provided arguments. */ |
2e17b763 SC |
307 | static void |
308 | tui_set_locator_info (const char *filename, const char *procname, int lineno, | |
7d6dd1e9 | 309 | CORE_ADDR addr) |
c906108c | 310 | { |
7d6dd1e9 SC |
311 | TuiGenWinInfoPtr locator = locatorWinInfoPtr (); |
312 | TuiLocatorElementPtr element; | |
313 | ||
314 | /* Allocate the locator content if necessary. */ | |
315 | if (locator->contentSize <= 0) | |
316 | { | |
317 | locator->content = (OpaquePtr) allocContent (1, locator->type); | |
318 | locator->contentSize = 1; | |
319 | } | |
320 | ||
321 | element = &((TuiWinElementPtr) locator->content[0])->whichElement.locator; | |
c906108c | 322 | element->procName[0] = (char) 0; |
c906108c | 323 | strcat_to_buf (element->procName, MAX_LOCATOR_ELEMENT_LEN, procname); |
2e17b763 | 324 | element->lineNo = lineno; |
c774cec6 | 325 | element->addr = addr; |
2e17b763 | 326 | tui_set_locator_filename (filename); |
c7c228ed | 327 | } |
c906108c | 328 | |
2e17b763 | 329 | /* Update only the filename portion of the locator. */ |
c906108c | 330 | void |
2e17b763 | 331 | tuiUpdateLocatorFilename (const char *filename) |
c906108c | 332 | { |
2e17b763 | 333 | tui_set_locator_filename (filename); |
c906108c | 334 | tuiShowLocatorContent (); |
2e17b763 | 335 | } |
c906108c | 336 | |
7d6dd1e9 | 337 | /* Function to print the frame information for the TUI. */ |
c906108c | 338 | void |
eca6576c | 339 | tuiShowFrameInfo (struct frame_info *fi) |
c906108c SS |
340 | { |
341 | TuiWinInfoPtr winInfo; | |
342 | register int i; | |
343 | ||
344 | if (fi) | |
345 | { | |
346 | register int startLine, i; | |
c906108c SS |
347 | CORE_ADDR low; |
348 | TuiGenWinInfoPtr locator = locatorWinInfoPtr (); | |
349 | int sourceAlreadyDisplayed; | |
7d6dd1e9 SC |
350 | struct symtab_and_line sal; |
351 | ||
1058bca7 | 352 | find_frame_sap (fi, &sal); |
7d6dd1e9 SC |
353 | |
354 | sourceAlreadyDisplayed = sal.symtab != 0 | |
355 | && tuiSourceIsDisplayed (sal.symtab->filename); | |
356 | tui_set_locator_info (sal.symtab == 0 ? "??" : sal.symtab->filename, | |
357 | tui_get_function_from_frame (fi), | |
358 | sal.line, | |
359 | fi->pc); | |
d059f789 | 360 | tuiShowLocatorContent (); |
7d6dd1e9 | 361 | startLine = 0; |
c906108c SS |
362 | for (i = 0; i < (sourceWindows ())->count; i++) |
363 | { | |
a4b99e53 | 364 | TuiWhichElement *item; |
c906108c | 365 | winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i]; |
a4b99e53 SC |
366 | |
367 | item = &((TuiWinElementPtr) locator->content[0])->whichElement; | |
c906108c SS |
368 | if (winInfo == srcWin) |
369 | { | |
a4b99e53 SC |
370 | startLine = (item->locator.lineNo - |
371 | (winInfo->generic.viewportHeight / 2)) + 1; | |
c906108c SS |
372 | if (startLine <= 0) |
373 | startLine = 1; | |
374 | } | |
375 | else | |
376 | { | |
377 | if (find_pc_partial_function (fi->pc, (char **) NULL, &low, (CORE_ADDR) NULL) == 0) | |
378 | error ("No function contains program counter for selected frame.\n"); | |
379 | else | |
c774cec6 | 380 | low = tuiGetLowDisassemblyAddress (low, fi->pc); |
c906108c SS |
381 | } |
382 | ||
383 | if (winInfo == srcWin) | |
384 | { | |
a4b99e53 SC |
385 | TuiLineOrAddress l; |
386 | l.lineNo = startLine; | |
387 | if (!(sourceAlreadyDisplayed | |
388 | && tuiLineIsDisplayed (item->locator.lineNo, winInfo, TRUE))) | |
7d6dd1e9 | 389 | tuiUpdateSourceWindow (winInfo, sal.symtab, l, TRUE); |
c906108c | 390 | else |
a4b99e53 SC |
391 | { |
392 | l.lineNo = item->locator.lineNo; | |
393 | tuiSetIsExecPointAt (l, winInfo); | |
394 | } | |
c906108c SS |
395 | } |
396 | else | |
397 | { | |
398 | if (winInfo == disassemWin) | |
399 | { | |
a4b99e53 SC |
400 | TuiLineOrAddress a; |
401 | a.addr = low; | |
402 | if (!tuiAddrIsDisplayed (item->locator.addr, winInfo, TRUE)) | |
7d6dd1e9 | 403 | tuiUpdateSourceWindow (winInfo, sal.symtab, a, TRUE); |
c906108c | 404 | else |
a4b99e53 SC |
405 | { |
406 | a.addr = item->locator.addr; | |
407 | tuiSetIsExecPointAt (a, winInfo); | |
408 | } | |
c906108c SS |
409 | } |
410 | } | |
411 | tuiUpdateExecInfo (winInfo); | |
412 | } | |
413 | } | |
414 | else | |
415 | { | |
7d6dd1e9 | 416 | tui_set_locator_info (NULL, NULL, 0, (CORE_ADDR) 0); |
d059f789 | 417 | tuiShowLocatorContent (); |
c906108c SS |
418 | for (i = 0; i < (sourceWindows ())->count; i++) |
419 | { | |
420 | winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i]; | |
421 | tuiClearSourceContent (winInfo, EMPTY_SOURCE_PROMPT); | |
422 | tuiUpdateExecInfo (winInfo); | |
423 | } | |
424 | } | |
7d6dd1e9 | 425 | } |
c906108c | 426 | |
7563e053 | 427 | /* Function to initialize gdb commands, for tui window stack manipulation. */ |
c906108c | 428 | void |
fba45db2 | 429 | _initialize_tuiStack (void) |
c906108c | 430 | { |
7563e053 SC |
431 | add_com ("update", class_tui, tui_update_command, |
432 | "Update the source window and locator to display the current " | |
433 | "execution point.\n"); | |
41783295 | 434 | } |
c906108c | 435 | |
7563e053 | 436 | /* Command to update the display with the current execution point. */ |
c906108c | 437 | static void |
7563e053 | 438 | tui_update_command (char *arg, int from_tty) |
c906108c | 439 | { |
7563e053 | 440 | char cmd[sizeof("frame 0")]; |
c906108c | 441 | |
7563e053 SC |
442 | strcpy (cmd, "frame 0"); |
443 | execute_command (cmd, from_tty); | |
444 | } |