1 /* TUI display source/assembly window.
3 Copyright (C) 1998-2019 Free Software Foundation, Inc.
5 Contributed by Hewlett-Packard Company.
7 This file is part of GDB.
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
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
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.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "breakpoint.h"
30 #include "filenames.h"
33 #include "tui/tui-data.h"
34 #include "tui/tui-io.h"
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"
41 #include "gdb_curses.h"
43 /* Function to display the "main" routine. */
47 auto adapter
= tui_source_windows ();
48 if (adapter
.begin () != adapter
.end ())
50 struct gdbarch
*gdbarch
;
53 tui_get_begin_asm_address (&gdbarch
, &addr
);
54 if (addr
!= (CORE_ADDR
) 0)
58 tui_update_source_windows_with_addr (gdbarch
, addr
);
59 s
= find_pc_line_symtab (addr
);
61 tui_update_locator_fullname (symtab_to_fullname (s
));
63 tui_update_locator_fullname ("??");
70 /* Function to display source in the source window. This function
71 initializes the horizontal scroll to 0. */
73 tui_update_source_window (struct tui_source_window_base
*win_info
,
74 struct gdbarch
*gdbarch
,
76 struct tui_line_or_address line_or_addr
)
78 win_info
->horizontal_offset
= 0;
79 tui_update_source_window_as_is (win_info
, gdbarch
, s
, line_or_addr
);
83 /* Function to display source in the source/asm window. This function
84 shows the source as specified by the horizontal offset. */
86 tui_update_source_window_as_is (struct tui_source_window_base
*win_info
,
87 struct gdbarch
*gdbarch
,
89 struct tui_line_or_address line_or_addr
)
93 if (win_info
->type
== SRC_WIN
)
94 ret
= tui_set_source_content (win_info
, s
, line_or_addr
.u
.line_no
);
96 ret
= tui_set_disassem_content (win_info
, gdbarch
, line_or_addr
.u
.addr
);
98 if (ret
== TUI_FAILURE
)
99 win_info
->erase_source_content ();
102 tui_update_breakpoint_info (win_info
, nullptr, false);
103 win_info
->show_source_content ();
104 win_info
->update_exec_info ();
105 if (win_info
->type
== SRC_WIN
)
109 sal
.line
= line_or_addr
.u
.line_no
+
110 (win_info
->content
.size () - 2);
112 sal
.pspace
= SYMTAB_PSPACE (s
);
113 set_current_source_symtab_and_line (sal
);
114 /* If the focus was in the asm win, put it in the src win if
115 we don't have a split layout. */
116 if (tui_win_with_focus () == TUI_DISASM_WIN
117 && tui_current_layout () != SRC_DISASSEM_COMMAND
)
118 tui_set_win_focus_to (win_info
);
124 /* Function to ensure that the source and/or disassemly windows
125 reflect the input address. */
127 tui_update_source_windows_with_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
131 struct symtab_and_line sal
;
132 struct tui_line_or_address l
;
134 switch (tui_current_layout ())
136 case DISASSEM_COMMAND
:
137 case DISASSEM_DATA_COMMAND
:
138 tui_show_disassem (gdbarch
, addr
);
140 case SRC_DISASSEM_COMMAND
:
141 tui_show_disassem_and_update_source (gdbarch
, addr
);
144 sal
= find_pc_line (addr
, 0);
146 l
.u
.line_no
= sal
.line
;
147 tui_show_symtab_source (TUI_SRC_WIN
, gdbarch
, sal
.symtab
, l
);
153 for (struct tui_source_window_base
*win_info
: tui_source_windows ())
154 win_info
->erase_source_content ();
158 /* Function to ensure that the source and/or disassemly windows
159 reflect the input address. */
161 tui_update_source_windows_with_line (struct symtab
*s
, int line
)
163 struct gdbarch
*gdbarch
;
165 struct tui_line_or_address l
;
170 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (s
));
172 switch (tui_current_layout ())
174 case DISASSEM_COMMAND
:
175 case DISASSEM_DATA_COMMAND
:
176 find_line_pc (s
, line
, &pc
);
177 tui_update_source_windows_with_addr (gdbarch
, pc
);
182 tui_show_symtab_source (TUI_SRC_WIN
, gdbarch
, s
, l
);
183 if (tui_current_layout () == SRC_DISASSEM_COMMAND
)
185 find_line_pc (s
, line
, &pc
);
186 tui_show_disassem (gdbarch
, pc
);
193 tui_source_window_base::do_erase_source_content (const char *str
)
196 int half_width
= (width
- 2) / 2;
202 check_and_display_highlight_if_needed ();
204 if (strlen (str
) >= half_width
)
207 x_pos
= half_width
- strlen (str
);
215 werase (execution_info
->handle
);
216 execution_info
->refresh_window ();
221 /* Redraw the complete line of a source or disassembly window. */
223 tui_show_source_line (struct tui_source_window_base
*win_info
, int lineno
)
225 struct tui_source_element
*line
;
228 line
= &win_info
->content
[lineno
- 1];
229 if (line
->is_exec_point
)
230 tui_set_reverse_mode (win_info
->handle
, true);
232 wmove (win_info
->handle
, lineno
, 1);
233 tui_puts (line
->line
,
235 if (line
->is_exec_point
)
236 tui_set_reverse_mode (win_info
->handle
, false);
238 /* Clear to end of line but stop before the border. */
239 x
= getcurx (win_info
->handle
);
240 while (x
+ 1 < win_info
->width
)
242 waddch (win_info
->handle
, ' ');
243 x
= getcurx (win_info
->handle
);
248 tui_source_window_base::show_source_content ()
250 if (!content
.empty ())
254 for (lineno
= 1; lineno
<= content
.size (); lineno
++)
255 tui_show_source_line (this, lineno
);
258 erase_source_content ();
260 check_and_display_highlight_if_needed ();
264 /* See tui-data.h. */
267 tui_source_window_base::clear_detail ()
270 start_line_or_addr
.loa
= LOA_ADDRESS
;
271 start_line_or_addr
.u
.addr
= 0;
272 horizontal_offset
= 0;
275 tui_source_window_base::tui_source_window_base (enum tui_win_type type
)
276 : tui_win_info (type
),
277 execution_info (new tui_exec_info_window ())
279 gdb_assert (type
== SRC_WIN
|| type
== DISASSEM_WIN
);
280 start_line_or_addr
.loa
= LOA_ADDRESS
;
281 start_line_or_addr
.u
.addr
= 0;
285 tui_source_window_base::~tui_source_window_base ()
288 delete execution_info
;
292 tui_source_window_base::resize (int height
, int width
,
293 int origin_x
, int origin_y
)
295 tui_gen_win_info::resize (height
, width
- 3,
296 origin_x
+ 3, origin_y
);
297 execution_info
->resize (height
, 3, origin_x
, origin_y
);
300 /* See tui-data.h. */
303 tui_source_window_base::refresh_all ()
305 show_source_content ();
306 check_and_display_highlight_if_needed ();
310 /* See tui-data.h. */
313 tui_source_window_base::update_tab_width ()
320 tui_source_window_base::rerender ()
322 if (!content
.empty ())
324 struct tui_line_or_address line_or_addr
;
325 struct symtab_and_line cursal
326 = get_current_source_symtab_and_line ();
328 line_or_addr
= start_line_or_addr
;
329 tui_update_source_window (this, gdbarch
,
330 cursal
.symtab
, line_or_addr
);
332 else if (deprecated_safe_get_selected_frame () != NULL
)
334 struct tui_line_or_address line
;
335 struct symtab_and_line cursal
336 = get_current_source_symtab_and_line ();
337 struct frame_info
*frame
= deprecated_safe_get_selected_frame ();
338 struct gdbarch
*gdbarch
= get_frame_arch (frame
);
340 struct symtab
*s
= find_pc_line_symtab (get_frame_pc (frame
));
344 line
.u
.line_no
= cursal
.line
;
348 line
.loa
= LOA_ADDRESS
;
349 find_line_pc (s
, cursal
.line
, &line
.u
.addr
);
351 tui_update_source_window (this, gdbarch
, s
, line
);
354 erase_source_content ();
357 /* See tui-data.h. */
360 tui_source_window_base::make_visible (bool visible
)
362 execution_info
->make_visible (visible
);
363 tui_win_info::make_visible (visible
);
366 /* See tui-data.h. */
369 tui_source_window_base::refresh_window ()
371 execution_info
->refresh_window ();
372 tui_win_info::refresh_window ();
375 /* See tui-data.h. */
378 tui_source_window_base::refill ()
384 symtab_and_line cursal
= get_current_source_symtab_and_line ();
385 s
= (cursal
.symtab
== NULL
386 ? find_pc_line_symtab (get_frame_pc (get_selected_frame (NULL
)))
390 tui_update_source_window_as_is (this, gdbarch
, s
,
391 content
[0].line_or_addr
);
394 /* Scroll the source forward or backward horizontally. */
397 tui_source_window_base::do_scroll_horizontal (int num_to_scroll
)
399 if (!content
.empty ())
401 int offset
= horizontal_offset
+ num_to_scroll
;
404 horizontal_offset
= offset
;
410 /* Set or clear the is_exec_point flag in the line whose line is
414 tui_source_window_base::set_is_exec_point_at (struct tui_line_or_address l
)
416 bool changed
= false;
420 while (i
< content
.size ())
423 struct tui_line_or_address content_loa
=
424 content
[i
].line_or_addr
;
426 gdb_assert (l
.loa
== LOA_ADDRESS
|| l
.loa
== LOA_LINE
);
427 gdb_assert (content_loa
.loa
== LOA_LINE
428 || content_loa
.loa
== LOA_ADDRESS
);
429 if (content_loa
.loa
== l
.loa
430 && ((l
.loa
== LOA_LINE
&& content_loa
.u
.line_no
== l
.u
.line_no
)
431 || (l
.loa
== LOA_ADDRESS
&& content_loa
.u
.addr
== l
.u
.addr
)))
435 if (new_state
!= content
[i
].is_exec_point
)
438 content
[i
].is_exec_point
= new_state
;
439 tui_show_source_line (this, i
+ 1);
447 /* See tui-winsource.h. */
450 tui_update_all_breakpoint_info (struct breakpoint
*being_deleted
)
452 for (tui_source_window_base
*win
: tui_source_windows ())
454 if (tui_update_breakpoint_info (win
, being_deleted
, false))
456 win
->update_exec_info ();
462 /* Scan the source window and the breakpoints to update the break_mode
463 information for each line.
465 Returns true if something changed and the execution window must be
469 tui_update_breakpoint_info (struct tui_source_window_base
*win
,
470 struct breakpoint
*being_deleted
,
474 bool need_refresh
= false;
476 for (i
= 0; i
< win
->content
.size (); i
++)
478 struct breakpoint
*bp
;
479 extern struct breakpoint
*breakpoint_chain
;
480 struct tui_source_element
*line
;
482 line
= &win
->content
[i
];
483 if (current_only
&& !line
->is_exec_point
)
486 /* Scan each breakpoint to see if the current line has something to
487 do with it. Identify enable/disabled breakpoints as well as
488 those that we already hit. */
489 tui_bp_flags mode
= 0;
490 for (bp
= breakpoint_chain
;
494 struct bp_location
*loc
;
496 gdb_assert (line
->line_or_addr
.loa
== LOA_LINE
497 || line
->line_or_addr
.loa
== LOA_ADDRESS
);
499 if (bp
== being_deleted
)
502 for (loc
= bp
->loc
; loc
!= NULL
; loc
= loc
->next
)
504 if (win
->location_matches_p (loc
, i
))
506 if (bp
->enable_state
== bp_disabled
)
507 mode
|= TUI_BP_DISABLED
;
509 mode
|= TUI_BP_ENABLED
;
513 mode
|= TUI_BP_CONDITIONAL
;
514 if (bp
->type
== bp_hardware_breakpoint
)
515 mode
|= TUI_BP_HARDWARE
;
519 if (line
->break_mode
!= mode
)
521 line
->break_mode
= mode
;
528 /* Function to initialize the content of the execution info window,
529 based upon the input window which is either the source or
530 disassembly window. */
532 tui_source_window_base::update_exec_info ()
534 werase (execution_info
->handle
);
535 tui_update_breakpoint_info (this, nullptr, true);
536 for (int i
= 0; i
< content
.size (); i
++)
538 struct tui_source_element
*src_element
= &content
[i
];
539 char element
[TUI_EXECINFO_SIZE
] = " ";
541 /* Now update the exec info content based upon the state
542 of each line as indicated by the source content. */
543 tui_bp_flags mode
= src_element
->break_mode
;
544 if (mode
& TUI_BP_HIT
)
545 element
[TUI_BP_HIT_POS
] = (mode
& TUI_BP_HARDWARE
) ? 'H' : 'B';
546 else if (mode
& (TUI_BP_ENABLED
| TUI_BP_DISABLED
))
547 element
[TUI_BP_HIT_POS
] = (mode
& TUI_BP_HARDWARE
) ? 'h' : 'b';
549 if (mode
& TUI_BP_ENABLED
)
550 element
[TUI_BP_BREAK_POS
] = '+';
551 else if (mode
& TUI_BP_DISABLED
)
552 element
[TUI_BP_BREAK_POS
] = '-';
554 if (src_element
->is_exec_point
)
555 element
[TUI_EXEC_POS
] = '>';
557 mvwaddstr (execution_info
->handle
, i
+ 1, 0, element
);
559 execution_info
->refresh_window ();