Commit | Line | Data |
---|---|---|
f377b406 | 1 | /* TUI display locator. |
f33c6cbf | 2 | |
6aba47ca | 3 | Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007 |
48426bc2 | 4 | Free Software Foundation, Inc. |
f33c6cbf | 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 | |
88d83552 EZ |
22 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
23 | Boston, MA 02110-1301, USA. */ | |
c906108c SS |
24 | |
25 | #include "defs.h" | |
26 | #include "symtab.h" | |
27 | #include "breakpoint.h" | |
28 | #include "frame.h" | |
75fd9bc1 | 29 | #include "command.h" |
50265402 SC |
30 | #include "inferior.h" |
31 | #include "target.h" | |
7563e053 | 32 | #include "top.h" |
6d012f14 | 33 | #include "gdb_string.h" |
d7b2e967 AC |
34 | #include "tui/tui.h" |
35 | #include "tui/tui-data.h" | |
36 | #include "tui/tui-stack.h" | |
37 | #include "tui/tui-wingeneral.h" | |
38 | #include "tui/tui-source.h" | |
39 | #include "tui/tui-winsource.h" | |
40 | #include "tui/tui-file.h" | |
c906108c | 41 | |
6a83354a | 42 | #include "gdb_curses.h" |
c906108c | 43 | |
5564c769 SC |
44 | /* Get a printable name for the function at the address. |
45 | The symbol name is demangled if demangling is turned on. | |
46 | Returns a pointer to a static area holding the result. */ | |
5b6fe301 | 47 | static char *tui_get_function_from_frame (struct frame_info *fi); |
c906108c | 48 | |
2e17b763 SC |
49 | /* Set the filename portion of the locator. */ |
50 | static void tui_set_locator_filename (const char *filename); | |
51 | ||
52 | /* Update the locator, with the provided arguments. */ | |
08ef48c5 MS |
53 | static void tui_set_locator_info (const char *filename, |
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 AC |
97 | if (loc->line_no > 0) |
98 | sprintf (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); | |
66bf4b3a | 107 | deprecated_print_address_numeric (loc->addr, 1, pc_out); |
50265402 SC |
108 | pc_buf = tui_file_get_strbuf (pc_out); |
109 | pc_width = strlen (pc_buf); | |
110 | ||
111 | /* First determine the amount of proc name width we have available. | |
112 | The +1 are for a space separator between fields. | |
113 | The -1 are to take into account the \0 counted by sizeof. */ | |
114 | proc_width = (status_size | |
115 | - (target_width + 1) | |
116 | - (pid_width + 1) | |
117 | - (sizeof (PROC_PREFIX) - 1 + 1) | |
118 | - (sizeof (LINE_PREFIX) - 1 + line_width + 1) | |
119 | - (sizeof (PC_PREFIX) - 1 + pc_width + 1) | |
6d012f14 | 120 | - (tui_current_key_mode == TUI_SINGLE_KEY_MODE |
50265402 SC |
121 | ? (sizeof (SINGLE_KEY) - 1 + 1) |
122 | : 0)); | |
123 | ||
124 | /* If there is no room to print the function name, try by removing | |
125 | some fields. */ | |
126 | if (proc_width < MIN_PROC_WIDTH) | |
127 | { | |
128 | proc_width += target_width + 1; | |
129 | target_width = 0; | |
130 | if (proc_width < MIN_PROC_WIDTH) | |
131 | { | |
132 | proc_width += pid_width + 1; | |
133 | pid_width = 0; | |
134 | if (proc_width <= MIN_PROC_WIDTH) | |
135 | { | |
136 | proc_width += pc_width + sizeof (PC_PREFIX) - 1 + 1; | |
137 | pc_width = 0; | |
138 | if (proc_width < 0) | |
139 | { | |
140 | proc_width += line_width + sizeof (LINE_PREFIX) - 1 + 1; | |
141 | line_width = 0; | |
142 | if (proc_width < 0) | |
143 | proc_width = 0; | |
144 | } | |
145 | } | |
146 | } | |
147 | } | |
148 | ||
1cc6d956 | 149 | /* Now convert elements to string form. */ |
6d012f14 | 150 | pname = loc->proc_name; |
50265402 | 151 | |
1cc6d956 MS |
152 | /* Now create the locator line from the string version of the |
153 | elements. We could use sprintf() here but that wouldn't ensure | |
154 | that we don't overrun the size of the allocated buffer. | |
155 | strcat_to_buf() will. */ | |
50265402 SC |
156 | *string = (char) 0; |
157 | ||
158 | if (target_width > 0) | |
159 | { | |
160 | sprintf (buf, "%*.*s ", | |
161 | -target_width, target_width, target_shortname); | |
162 | strcat_to_buf (string, status_size, buf); | |
163 | } | |
164 | if (pid_width > 0) | |
165 | { | |
166 | sprintf (buf, "%*.*s ", | |
167 | -pid_width, pid_width, pid_name); | |
168 | strcat_to_buf (string, status_size, buf); | |
169 | } | |
170 | ||
171 | /* Show whether we are in SingleKey mode. */ | |
6d012f14 | 172 | if (tui_current_key_mode == TUI_SINGLE_KEY_MODE) |
50265402 SC |
173 | { |
174 | strcat_to_buf (string, status_size, SINGLE_KEY); | |
175 | strcat_to_buf (string, status_size, " "); | |
176 | } | |
177 | ||
1cc6d956 | 178 | /* Procedure/class name. */ |
50265402 SC |
179 | if (proc_width > 0) |
180 | { | |
181 | if (strlen (pname) > proc_width) | |
182 | sprintf (buf, "%s%*.*s* ", PROC_PREFIX, | |
183 | 1 - proc_width, proc_width - 1, pname); | |
184 | else | |
185 | sprintf (buf, "%s%*.*s ", PROC_PREFIX, | |
186 | -proc_width, proc_width, pname); | |
187 | strcat_to_buf (string, status_size, buf); | |
188 | } | |
189 | ||
190 | if (line_width > 0) | |
191 | { | |
192 | sprintf (buf, "%s%*.*s ", LINE_PREFIX, | |
193 | -line_width, line_width, line_buf); | |
194 | strcat_to_buf (string, status_size, buf); | |
195 | } | |
196 | if (pc_width > 0) | |
197 | { | |
198 | strcat_to_buf (string, status_size, PC_PREFIX); | |
199 | strcat_to_buf (string, status_size, pc_buf); | |
200 | } | |
201 | ||
202 | ||
203 | for (i = strlen (string); i < status_size; i++) | |
204 | string[i] = ' '; | |
205 | string[status_size] = (char) 0; | |
206 | ||
207 | ui_file_delete (pc_out); | |
208 | return string; | |
209 | } | |
210 | ||
1cc6d956 MS |
211 | /* Get a printable name for the function at the address. The symbol |
212 | name is demangled if demangling is turned on. Returns a pointer to | |
213 | a static area holding the result. */ | |
5564c769 SC |
214 | static char* |
215 | tui_get_function_from_frame (struct frame_info *fi) | |
216 | { | |
217 | static char name[256]; | |
218 | struct ui_file *stream = tui_sfileopen (256); | |
219 | char *p; | |
220 | ||
f70a7d61 | 221 | print_address_symbolic (get_frame_pc (fi), stream, demangle, ""); |
5564c769 SC |
222 | p = tui_file_get_strbuf (stream); |
223 | ||
1cc6d956 MS |
224 | /* Use simple heuristics to isolate the function name. The symbol |
225 | can be demangled and we can have function parameters. Remove | |
226 | them because the status line is too short to display them. */ | |
5564c769 SC |
227 | if (*p == '<') |
228 | p++; | |
229 | strncpy (name, p, sizeof (name)); | |
230 | p = strchr (name, '('); | |
231 | if (!p) | |
232 | p = strchr (name, '>'); | |
233 | if (p) | |
234 | *p = 0; | |
235 | p = strchr (name, '+'); | |
236 | if (p) | |
237 | *p = 0; | |
238 | ui_file_delete (stream); | |
239 | return name; | |
240 | } | |
c906108c | 241 | |
c906108c | 242 | void |
47d3492a | 243 | tui_show_locator_content (void) |
c906108c SS |
244 | { |
245 | char *string; | |
5b6fe301 | 246 | struct tui_gen_win_info *locator; |
c906108c | 247 | |
dd1abb8c | 248 | locator = tui_locator_win_info_ptr (); |
c906108c | 249 | |
6d012f14 | 250 | if (locator != NULL && locator->handle != (WINDOW *) NULL) |
c906108c | 251 | { |
5b6fe301 | 252 | struct tui_win_element *element; |
50265402 | 253 | |
2a8854a7 | 254 | element = (struct tui_win_element *) locator->content[0]; |
50265402 | 255 | |
6d012f14 | 256 | string = tui_make_status_line (&element->which_element.locator); |
50265402 SC |
257 | wmove (locator->handle, 0, 0); |
258 | wstandout (locator->handle); | |
259 | waddstr (locator->handle, string); | |
260 | wclrtoeol (locator->handle); | |
261 | wstandend (locator->handle); | |
ec7d9e56 | 262 | tui_refresh_win (locator); |
50265402 SC |
263 | wmove (locator->handle, 0, 0); |
264 | xfree (string); | |
6d012f14 | 265 | locator->content_in_use = TRUE; |
c906108c | 266 | } |
50265402 | 267 | } |
c906108c | 268 | |
c906108c | 269 | |
2e17b763 SC |
270 | /* Set the filename portion of the locator. */ |
271 | static void | |
272 | tui_set_locator_filename (const char *filename) | |
273 | { | |
5b6fe301 MS |
274 | struct tui_gen_win_info *locator = tui_locator_win_info_ptr (); |
275 | struct tui_locator_element *element; | |
2e17b763 | 276 | |
22940a24 | 277 | if (locator->content[0] == NULL) |
7d6dd1e9 SC |
278 | { |
279 | tui_set_locator_info (filename, NULL, 0, 0); | |
280 | return; | |
281 | } | |
2e17b763 | 282 | |
6d012f14 AC |
283 | element = &((struct tui_win_element *) locator->content[0])->which_element.locator; |
284 | element->file_name[0] = 0; | |
285 | strcat_to_buf (element->file_name, MAX_LOCATOR_ELEMENT_LEN, filename); | |
2e17b763 | 286 | } |
c906108c | 287 | |
c7c228ed | 288 | /* Update the locator, with the provided arguments. */ |
2e17b763 | 289 | static void |
08ef48c5 MS |
290 | tui_set_locator_info (const char *filename, |
291 | const char *procname, | |
292 | int lineno, | |
7d6dd1e9 | 293 | CORE_ADDR addr) |
c906108c | 294 | { |
5b6fe301 MS |
295 | struct tui_gen_win_info *locator = tui_locator_win_info_ptr (); |
296 | struct tui_locator_element *element; | |
7d6dd1e9 SC |
297 | |
298 | /* Allocate the locator content if necessary. */ | |
6d012f14 | 299 | if (locator->content_size <= 0) |
7d6dd1e9 | 300 | { |
22940a24 | 301 | locator->content = (void **) tui_alloc_content (1, locator->type); |
6d012f14 | 302 | locator->content_size = 1; |
7d6dd1e9 SC |
303 | } |
304 | ||
6d012f14 AC |
305 | element = &((struct tui_win_element *) locator->content[0])->which_element.locator; |
306 | element->proc_name[0] = (char) 0; | |
307 | strcat_to_buf (element->proc_name, MAX_LOCATOR_ELEMENT_LEN, procname); | |
308 | element->line_no = lineno; | |
c774cec6 | 309 | element->addr = addr; |
2e17b763 | 310 | tui_set_locator_filename (filename); |
c7c228ed | 311 | } |
c906108c | 312 | |
2e17b763 | 313 | /* Update only the filename portion of the locator. */ |
c906108c | 314 | void |
47d3492a | 315 | tui_update_locator_filename (const char *filename) |
c906108c | 316 | { |
2e17b763 | 317 | tui_set_locator_filename (filename); |
47d3492a | 318 | tui_show_locator_content (); |
2e17b763 | 319 | } |
c906108c | 320 | |
7d6dd1e9 | 321 | /* Function to print the frame information for the TUI. */ |
c906108c | 322 | void |
47d3492a | 323 | tui_show_frame_info (struct frame_info *fi) |
c906108c | 324 | { |
5b6fe301 | 325 | struct tui_win_info *win_info; |
d02c80cd | 326 | int i; |
c906108c SS |
327 | |
328 | if (fi) | |
329 | { | |
d02c80cd | 330 | int start_line, i; |
c906108c | 331 | CORE_ADDR low; |
5b6fe301 | 332 | struct tui_gen_win_info *locator = tui_locator_win_info_ptr (); |
6ba8e26f | 333 | int source_already_displayed; |
7d6dd1e9 SC |
334 | struct symtab_and_line sal; |
335 | ||
3d7442da | 336 | find_frame_sal (fi, &sal); |
7d6dd1e9 | 337 | |
6ba8e26f | 338 | source_already_displayed = sal.symtab != 0 |
a358af15 | 339 | && tui_source_is_displayed (sal.symtab->filename); |
7d6dd1e9 SC |
340 | tui_set_locator_info (sal.symtab == 0 ? "??" : sal.symtab->filename, |
341 | tui_get_function_from_frame (fi), | |
342 | sal.line, | |
f70a7d61 | 343 | get_frame_pc (fi)); |
47d3492a | 344 | tui_show_locator_content (); |
6d012f14 | 345 | start_line = 0; |
dd1abb8c | 346 | for (i = 0; i < (tui_source_windows ())->count; i++) |
c906108c | 347 | { |
2a8854a7 | 348 | union tui_which_element *item; |
96c1eda2 | 349 | win_info = (tui_source_windows ())->list[i]; |
a4b99e53 | 350 | |
6d012f14 AC |
351 | item = &((struct tui_win_element *) locator->content[0])->which_element; |
352 | if (win_info == TUI_SRC_WIN) | |
c906108c | 353 | { |
6d012f14 AC |
354 | start_line = (item->locator.line_no - |
355 | (win_info->generic.viewport_height / 2)) + 1; | |
356 | if (start_line <= 0) | |
357 | start_line = 1; | |
c906108c SS |
358 | } |
359 | else | |
360 | { | |
f70a7d61 | 361 | if (find_pc_partial_function (get_frame_pc (fi), (char **) NULL, |
87177905 | 362 | &low, (CORE_ADDR) 0) == 0) |
8a3fe4f8 | 363 | error (_("No function contains program counter for selected frame.")); |
c906108c | 364 | else |
22940a24 | 365 | low = tui_get_low_disassembly_address (low, get_frame_pc (fi)); |
c906108c SS |
366 | } |
367 | ||
6d012f14 | 368 | if (win_info == TUI_SRC_WIN) |
c906108c | 369 | { |
362c05fe AS |
370 | struct tui_line_or_address l; |
371 | l.loa = LOA_LINE; | |
372 | l.u.line_no = start_line; | |
6ba8e26f | 373 | if (!(source_already_displayed |
6d012f14 AC |
374 | && tui_line_is_displayed (item->locator.line_no, win_info, TRUE))) |
375 | tui_update_source_window (win_info, sal.symtab, l, TRUE); | |
c906108c | 376 | else |
a4b99e53 | 377 | { |
362c05fe | 378 | l.u.line_no = item->locator.line_no; |
6d012f14 | 379 | tui_set_is_exec_point_at (l, win_info); |
a4b99e53 | 380 | } |
c906108c SS |
381 | } |
382 | else | |
383 | { | |
6d012f14 | 384 | if (win_info == TUI_DISASM_WIN) |
c906108c | 385 | { |
362c05fe AS |
386 | struct tui_line_or_address a; |
387 | a.loa = LOA_ADDRESS; | |
388 | a.u.addr = low; | |
6d012f14 AC |
389 | if (!tui_addr_is_displayed (item->locator.addr, win_info, TRUE)) |
390 | tui_update_source_window (win_info, sal.symtab, a, TRUE); | |
c906108c | 391 | else |
a4b99e53 | 392 | { |
362c05fe | 393 | a.u.addr = item->locator.addr; |
6d012f14 | 394 | tui_set_is_exec_point_at (a, win_info); |
a4b99e53 | 395 | } |
c906108c SS |
396 | } |
397 | } | |
6d012f14 | 398 | tui_update_exec_info (win_info); |
c906108c SS |
399 | } |
400 | } | |
401 | else | |
402 | { | |
7d6dd1e9 | 403 | tui_set_locator_info (NULL, NULL, 0, (CORE_ADDR) 0); |
47d3492a | 404 | tui_show_locator_content (); |
dd1abb8c | 405 | for (i = 0; i < (tui_source_windows ())->count; i++) |
c906108c | 406 | { |
96c1eda2 | 407 | win_info = (tui_source_windows ())->list[i]; |
6d012f14 AC |
408 | tui_clear_source_content (win_info, EMPTY_SOURCE_PROMPT); |
409 | tui_update_exec_info (win_info); | |
c906108c SS |
410 | } |
411 | } | |
7d6dd1e9 | 412 | } |
c906108c | 413 | |
6ba8e26f AC |
414 | /* Function to initialize gdb commands, for tui window stack |
415 | manipulation. */ | |
c906108c | 416 | void |
6ba8e26f | 417 | _initialize_tui_stack (void) |
c906108c | 418 | { |
1bedd215 AC |
419 | add_com ("update", class_tui, tui_update_command, _("\ |
420 | Update the source window and locator to display the current execution point.\n")); | |
41783295 | 421 | } |
c906108c | 422 | |
7563e053 | 423 | /* Command to update the display with the current execution point. */ |
c906108c | 424 | static void |
7563e053 | 425 | tui_update_command (char *arg, int from_tty) |
c906108c | 426 | { |
7563e053 | 427 | char cmd[sizeof("frame 0")]; |
c906108c | 428 | |
7563e053 SC |
429 | strcpy (cmd, "frame 0"); |
430 | execute_command (cmd, from_tty); | |
431 | } |