]>
git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - gdb/tui/tui-stack.c
1 /* TUI display locator.
3 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007
4 Free Software Foundation, Inc.
6 Contributed by Hewlett-Packard Company.
8 This file is part of GDB.
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.
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.
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., 51 Franklin Street, Fifth Floor,
23 Boston, MA 02110-1301, USA. */
27 #include "breakpoint.h"
33 #include "gdb_string.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"
42 #include "gdb_curses.h"
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. */
47 static char* tui_get_function_from_frame (struct frame_info
*fi
);
49 /* Set the filename portion of the locator. */
50 static void tui_set_locator_filename (const char *filename
);
52 /* Update the locator, with the provided arguments. */
53 static void tui_set_locator_info (const char *filename
, const char *procname
,
54 int lineno
, CORE_ADDR addr
);
56 static void tui_update_command (char *, int);
59 /* Create the status line to display as much information as we
60 can on this single line: target name, process number, current
61 function, current line, current PC, SingleKey mode. */
63 tui_make_status_line (struct tui_locator_element
* loc
)
66 char line_buf
[50], *pname
;
76 struct ui_file
*pc_out
;
78 if (ptid_equal (inferior_ptid
, null_ptid
))
79 pid_name
= "No process";
81 pid_name
= target_pid_to_str (inferior_ptid
);
83 target_width
= strlen (target_shortname
);
84 if (target_width
> MAX_TARGET_WIDTH
)
85 target_width
= MAX_TARGET_WIDTH
;
87 pid_width
= strlen (pid_name
);
88 if (pid_width
> MAX_PID_WIDTH
)
89 pid_width
= MAX_PID_WIDTH
;
91 status_size
= tui_term_width ();
92 string
= (char *) xmalloc (status_size
+ 1);
93 buf
= (char*) alloca (status_size
+ 1);
95 /* Translate line number and obtain its size. */
97 sprintf (line_buf
, "%d", loc
->line_no
);
99 strcpy (line_buf
, "??");
100 line_width
= strlen (line_buf
);
101 if (line_width
< MIN_LINE_WIDTH
)
102 line_width
= MIN_LINE_WIDTH
;
104 /* Translate PC address. */
105 pc_out
= tui_sfileopen (128);
106 deprecated_print_address_numeric (loc
->addr
, 1, pc_out
);
107 pc_buf
= tui_file_get_strbuf (pc_out
);
108 pc_width
= strlen (pc_buf
);
110 /* First determine the amount of proc name width we have available.
111 The +1 are for a space separator between fields.
112 The -1 are to take into account the \0 counted by sizeof. */
113 proc_width
= (status_size
116 - (sizeof (PROC_PREFIX
) - 1 + 1)
117 - (sizeof (LINE_PREFIX
) - 1 + line_width
+ 1)
118 - (sizeof (PC_PREFIX
) - 1 + pc_width
+ 1)
119 - (tui_current_key_mode
== TUI_SINGLE_KEY_MODE
120 ? (sizeof (SINGLE_KEY
) - 1 + 1)
123 /* If there is no room to print the function name, try by removing
125 if (proc_width
< MIN_PROC_WIDTH
)
127 proc_width
+= target_width
+ 1;
129 if (proc_width
< MIN_PROC_WIDTH
)
131 proc_width
+= pid_width
+ 1;
133 if (proc_width
<= MIN_PROC_WIDTH
)
135 proc_width
+= pc_width
+ sizeof (PC_PREFIX
) - 1 + 1;
139 proc_width
+= line_width
+ sizeof (LINE_PREFIX
) - 1 + 1;
148 /* Now convert elements to string form */
149 pname
= loc
->proc_name
;
151 /* Now create the locator line from the string version
152 of the elements. We could use sprintf() here but
153 that wouldn't ensure that we don't overrun the size
154 of the allocated buffer. strcat_to_buf() will. */
157 if (target_width
> 0)
159 sprintf (buf
, "%*.*s ",
160 -target_width
, target_width
, target_shortname
);
161 strcat_to_buf (string
, status_size
, buf
);
165 sprintf (buf
, "%*.*s ",
166 -pid_width
, pid_width
, pid_name
);
167 strcat_to_buf (string
, status_size
, buf
);
170 /* Show whether we are in SingleKey mode. */
171 if (tui_current_key_mode
== TUI_SINGLE_KEY_MODE
)
173 strcat_to_buf (string
, status_size
, SINGLE_KEY
);
174 strcat_to_buf (string
, status_size
, " ");
177 /* procedure/class name */
180 if (strlen (pname
) > proc_width
)
181 sprintf (buf
, "%s%*.*s* ", PROC_PREFIX
,
182 1 - proc_width
, proc_width
- 1, pname
);
184 sprintf (buf
, "%s%*.*s ", PROC_PREFIX
,
185 -proc_width
, proc_width
, pname
);
186 strcat_to_buf (string
, status_size
, buf
);
191 sprintf (buf
, "%s%*.*s ", LINE_PREFIX
,
192 -line_width
, line_width
, line_buf
);
193 strcat_to_buf (string
, status_size
, buf
);
197 strcat_to_buf (string
, status_size
, PC_PREFIX
);
198 strcat_to_buf (string
, status_size
, pc_buf
);
202 for (i
= strlen (string
); i
< status_size
; i
++)
204 string
[status_size
] = (char) 0;
206 ui_file_delete (pc_out
);
210 /* Get a printable name for the function at the address.
211 The symbol name is demangled if demangling is turned on.
212 Returns a pointer to a static area holding the result. */
214 tui_get_function_from_frame (struct frame_info
*fi
)
216 static char name
[256];
217 struct ui_file
*stream
= tui_sfileopen (256);
220 print_address_symbolic (get_frame_pc (fi
), stream
, demangle
, "");
221 p
= tui_file_get_strbuf (stream
);
223 /* Use simple heuristics to isolate the function name. The symbol can
224 be demangled and we can have function parameters. Remove them because
225 the status line is too short to display them. */
228 strncpy (name
, p
, sizeof (name
));
229 p
= strchr (name
, '(');
231 p
= strchr (name
, '>');
234 p
= strchr (name
, '+');
237 ui_file_delete (stream
);
242 tui_show_locator_content (void)
245 struct tui_gen_win_info
* locator
;
247 locator
= tui_locator_win_info_ptr ();
249 if (locator
!= NULL
&& locator
->handle
!= (WINDOW
*) NULL
)
251 struct tui_win_element
* element
;
253 element
= (struct tui_win_element
*) locator
->content
[0];
255 string
= tui_make_status_line (&element
->which_element
.locator
);
256 wmove (locator
->handle
, 0, 0);
257 wstandout (locator
->handle
);
258 waddstr (locator
->handle
, string
);
259 wclrtoeol (locator
->handle
);
260 wstandend (locator
->handle
);
261 tui_refresh_win (locator
);
262 wmove (locator
->handle
, 0, 0);
264 locator
->content_in_use
= TRUE
;
269 /* Set the filename portion of the locator. */
271 tui_set_locator_filename (const char *filename
)
273 struct tui_gen_win_info
* locator
= tui_locator_win_info_ptr ();
274 struct tui_locator_element
* element
;
276 if (locator
->content
[0] == NULL
)
278 tui_set_locator_info (filename
, NULL
, 0, 0);
282 element
= &((struct tui_win_element
*) locator
->content
[0])->which_element
.locator
;
283 element
->file_name
[0] = 0;
284 strcat_to_buf (element
->file_name
, MAX_LOCATOR_ELEMENT_LEN
, filename
);
287 /* Update the locator, with the provided arguments. */
289 tui_set_locator_info (const char *filename
, const char *procname
, int lineno
,
292 struct tui_gen_win_info
* locator
= tui_locator_win_info_ptr ();
293 struct tui_locator_element
* element
;
295 /* Allocate the locator content if necessary. */
296 if (locator
->content_size
<= 0)
298 locator
->content
= (void **) tui_alloc_content (1, locator
->type
);
299 locator
->content_size
= 1;
302 element
= &((struct tui_win_element
*) locator
->content
[0])->which_element
.locator
;
303 element
->proc_name
[0] = (char) 0;
304 strcat_to_buf (element
->proc_name
, MAX_LOCATOR_ELEMENT_LEN
, procname
);
305 element
->line_no
= lineno
;
306 element
->addr
= addr
;
307 tui_set_locator_filename (filename
);
310 /* Update only the filename portion of the locator. */
312 tui_update_locator_filename (const char *filename
)
314 tui_set_locator_filename (filename
);
315 tui_show_locator_content ();
318 /* Function to print the frame information for the TUI. */
320 tui_show_frame_info (struct frame_info
*fi
)
322 struct tui_win_info
* win_info
;
329 struct tui_gen_win_info
* locator
= tui_locator_win_info_ptr ();
330 int source_already_displayed
;
331 struct symtab_and_line sal
;
333 find_frame_sal (fi
, &sal
);
335 source_already_displayed
= sal
.symtab
!= 0
336 && tui_source_is_displayed (sal
.symtab
->filename
);
337 tui_set_locator_info (sal
.symtab
== 0 ? "??" : sal
.symtab
->filename
,
338 tui_get_function_from_frame (fi
),
341 tui_show_locator_content ();
343 for (i
= 0; i
< (tui_source_windows ())->count
; i
++)
345 union tui_which_element
*item
;
346 win_info
= (tui_source_windows ())->list
[i
];
348 item
= &((struct tui_win_element
*) locator
->content
[0])->which_element
;
349 if (win_info
== TUI_SRC_WIN
)
351 start_line
= (item
->locator
.line_no
-
352 (win_info
->generic
.viewport_height
/ 2)) + 1;
358 if (find_pc_partial_function (get_frame_pc (fi
), (char **) NULL
,
359 &low
, (CORE_ADDR
) 0) == 0)
360 error (_("No function contains program counter for selected frame."));
362 low
= tui_get_low_disassembly_address (low
, get_frame_pc (fi
));
365 if (win_info
== TUI_SRC_WIN
)
367 struct tui_line_or_address l
;
369 l
.u
.line_no
= start_line
;
370 if (!(source_already_displayed
371 && tui_line_is_displayed (item
->locator
.line_no
, win_info
, TRUE
)))
372 tui_update_source_window (win_info
, sal
.symtab
, l
, TRUE
);
375 l
.u
.line_no
= item
->locator
.line_no
;
376 tui_set_is_exec_point_at (l
, win_info
);
381 if (win_info
== TUI_DISASM_WIN
)
383 struct tui_line_or_address a
;
386 if (!tui_addr_is_displayed (item
->locator
.addr
, win_info
, TRUE
))
387 tui_update_source_window (win_info
, sal
.symtab
, a
, TRUE
);
390 a
.u
.addr
= item
->locator
.addr
;
391 tui_set_is_exec_point_at (a
, win_info
);
395 tui_update_exec_info (win_info
);
400 tui_set_locator_info (NULL
, NULL
, 0, (CORE_ADDR
) 0);
401 tui_show_locator_content ();
402 for (i
= 0; i
< (tui_source_windows ())->count
; i
++)
404 win_info
= (tui_source_windows ())->list
[i
];
405 tui_clear_source_content (win_info
, EMPTY_SOURCE_PROMPT
);
406 tui_update_exec_info (win_info
);
411 /* Function to initialize gdb commands, for tui window stack
414 _initialize_tui_stack (void)
416 add_com ("update", class_tui
, tui_update_command
, _("\
417 Update the source window and locator to display the current execution point.\n"));
420 /* Command to update the display with the current execution point. */
422 tui_update_command (char *arg
, int from_tty
)
424 char cmd
[sizeof("frame 0")];
426 strcpy (cmd
, "frame 0");
427 execute_command (cmd
, from_tty
);