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_source_window_base::update_source_window
74 (struct gdbarch
*gdbarch
,
76 struct tui_line_or_address line_or_addr
)
78 horizontal_offset
= 0;
79 update_source_window_as_is (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_source_window_base::update_source_window_as_is
87 (struct gdbarch
*gdbarch
,
89 struct tui_line_or_address line_or_addr
)
92 = set_contents (gdbarch
, s
, line_or_addr
);
94 if (ret
== TUI_FAILURE
)
95 erase_source_content ();
98 update_breakpoint_info (nullptr, false);
99 show_source_content ();
105 sal
.line
= line_or_addr
.u
.line_no
+ (content
.size () - 2);
107 sal
.pspace
= SYMTAB_PSPACE (s
);
108 set_current_source_symtab_and_line (sal
);
109 /* If the focus was in the asm win, put it in the src win if
110 we don't have a split layout. */
111 if (tui_win_with_focus () == TUI_DISASM_WIN
112 && tui_current_layout () != SRC_DISASSEM_COMMAND
)
113 tui_set_win_focus_to (this);
119 /* Function to ensure that the source and/or disassemly windows
120 reflect the input address. */
122 tui_update_source_windows_with_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
126 struct symtab_and_line sal
;
127 struct tui_line_or_address l
;
129 switch (tui_current_layout ())
131 case DISASSEM_COMMAND
:
132 case DISASSEM_DATA_COMMAND
:
133 tui_show_disassem (gdbarch
, addr
);
135 case SRC_DISASSEM_COMMAND
:
136 tui_show_disassem_and_update_source (gdbarch
, addr
);
139 sal
= find_pc_line (addr
, 0);
141 l
.u
.line_no
= sal
.line
;
142 TUI_SRC_WIN
->show_symtab_source (gdbarch
, sal
.symtab
, l
);
148 for (struct tui_source_window_base
*win_info
: tui_source_windows ())
149 win_info
->erase_source_content ();
153 /* Function to ensure that the source and/or disassemly windows
154 reflect the input address. */
156 tui_update_source_windows_with_line (struct symtab
*s
, int line
)
158 struct gdbarch
*gdbarch
;
160 struct tui_line_or_address l
;
165 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (s
));
167 switch (tui_current_layout ())
169 case DISASSEM_COMMAND
:
170 case DISASSEM_DATA_COMMAND
:
171 find_line_pc (s
, line
, &pc
);
172 tui_update_source_windows_with_addr (gdbarch
, pc
);
177 TUI_SRC_WIN
->show_symtab_source (gdbarch
, s
, l
);
178 if (tui_current_layout () == SRC_DISASSEM_COMMAND
)
180 find_line_pc (s
, line
, &pc
);
181 tui_show_disassem (gdbarch
, pc
);
188 tui_source_window_base::do_erase_source_content (const char *str
)
191 int half_width
= (width
- 2) / 2;
197 check_and_display_highlight_if_needed ();
199 if (strlen (str
) >= half_width
)
202 x_pos
= half_width
- strlen (str
);
210 werase (execution_info
->handle
);
211 execution_info
->refresh_window ();
216 /* Redraw the complete line of a source or disassembly window. */
218 tui_show_source_line (struct tui_source_window_base
*win_info
, int lineno
)
220 struct tui_source_element
*line
;
223 line
= &win_info
->content
[lineno
- 1];
224 if (line
->is_exec_point
)
225 tui_set_reverse_mode (win_info
->handle
, true);
227 wmove (win_info
->handle
, lineno
, 1);
228 tui_puts (line
->line
,
230 if (line
->is_exec_point
)
231 tui_set_reverse_mode (win_info
->handle
, false);
233 /* Clear to end of line but stop before the border. */
234 x
= getcurx (win_info
->handle
);
235 while (x
+ 1 < win_info
->width
)
237 waddch (win_info
->handle
, ' ');
238 x
= getcurx (win_info
->handle
);
243 tui_source_window_base::show_source_content ()
245 if (!content
.empty ())
249 for (lineno
= 1; lineno
<= content
.size (); lineno
++)
250 tui_show_source_line (this, lineno
);
253 erase_source_content ();
255 check_and_display_highlight_if_needed ();
259 /* See tui-data.h. */
262 tui_source_window_base::clear_detail ()
265 start_line_or_addr
.loa
= LOA_ADDRESS
;
266 start_line_or_addr
.u
.addr
= 0;
267 horizontal_offset
= 0;
270 tui_source_window_base::tui_source_window_base (enum tui_win_type type
)
271 : tui_win_info (type
),
272 execution_info (new tui_exec_info_window ())
274 gdb_assert (type
== SRC_WIN
|| type
== DISASSEM_WIN
);
275 start_line_or_addr
.loa
= LOA_ADDRESS
;
276 start_line_or_addr
.u
.addr
= 0;
280 tui_source_window_base::~tui_source_window_base ()
283 delete execution_info
;
287 tui_source_window_base::resize (int height
, int width
,
288 int origin_x
, int origin_y
)
290 tui_gen_win_info::resize (height
, width
- 3,
291 origin_x
+ 3, origin_y
);
292 execution_info
->resize (height
, 3, origin_x
, origin_y
);
295 /* See tui-data.h. */
298 tui_source_window_base::refresh_all ()
300 show_source_content ();
301 check_and_display_highlight_if_needed ();
305 /* See tui-data.h. */
308 tui_source_window_base::update_tab_width ()
315 tui_source_window_base::rerender ()
317 if (!content
.empty ())
319 struct tui_line_or_address line_or_addr
;
320 struct symtab_and_line cursal
321 = get_current_source_symtab_and_line ();
323 line_or_addr
= start_line_or_addr
;
324 update_source_window (gdbarch
, cursal
.symtab
, line_or_addr
);
326 else if (deprecated_safe_get_selected_frame () != NULL
)
328 struct tui_line_or_address line
;
329 struct symtab_and_line cursal
330 = get_current_source_symtab_and_line ();
331 struct frame_info
*frame
= deprecated_safe_get_selected_frame ();
332 struct gdbarch
*gdbarch
= get_frame_arch (frame
);
334 struct symtab
*s
= find_pc_line_symtab (get_frame_pc (frame
));
338 line
.u
.line_no
= cursal
.line
;
342 line
.loa
= LOA_ADDRESS
;
343 find_line_pc (s
, cursal
.line
, &line
.u
.addr
);
345 update_source_window (gdbarch
, s
, line
);
348 erase_source_content ();
351 /* See tui-data.h. */
354 tui_source_window_base::make_visible (bool visible
)
356 execution_info
->make_visible (visible
);
357 tui_win_info::make_visible (visible
);
360 /* See tui-data.h. */
363 tui_source_window_base::refresh_window ()
365 execution_info
->refresh_window ();
366 tui_win_info::refresh_window ();
369 /* See tui-data.h. */
372 tui_source_window_base::refill ()
378 symtab_and_line cursal
= get_current_source_symtab_and_line ();
379 s
= (cursal
.symtab
== NULL
380 ? find_pc_line_symtab (get_frame_pc (get_selected_frame (NULL
)))
384 update_source_window_as_is (gdbarch
, s
, content
[0].line_or_addr
);
387 /* Scroll the source forward or backward horizontally. */
390 tui_source_window_base::do_scroll_horizontal (int num_to_scroll
)
392 if (!content
.empty ())
394 int offset
= horizontal_offset
+ num_to_scroll
;
397 horizontal_offset
= offset
;
403 /* Set or clear the is_exec_point flag in the line whose line is
407 tui_source_window_base::set_is_exec_point_at (struct tui_line_or_address l
)
409 bool changed
= false;
413 while (i
< content
.size ())
416 struct tui_line_or_address content_loa
=
417 content
[i
].line_or_addr
;
419 gdb_assert (l
.loa
== LOA_ADDRESS
|| l
.loa
== LOA_LINE
);
420 gdb_assert (content_loa
.loa
== LOA_LINE
421 || content_loa
.loa
== LOA_ADDRESS
);
422 if (content_loa
.loa
== l
.loa
423 && ((l
.loa
== LOA_LINE
&& content_loa
.u
.line_no
== l
.u
.line_no
)
424 || (l
.loa
== LOA_ADDRESS
&& content_loa
.u
.addr
== l
.u
.addr
)))
428 if (new_state
!= content
[i
].is_exec_point
)
431 content
[i
].is_exec_point
= new_state
;
432 tui_show_source_line (this, i
+ 1);
440 /* See tui-winsource.h. */
443 tui_update_all_breakpoint_info (struct breakpoint
*being_deleted
)
445 for (tui_source_window_base
*win
: tui_source_windows ())
447 if (win
->update_breakpoint_info (being_deleted
, false))
448 win
->update_exec_info ();
453 /* Scan the source window and the breakpoints to update the break_mode
454 information for each line.
456 Returns true if something changed and the execution window must be
460 tui_source_window_base::update_breakpoint_info
461 (struct breakpoint
*being_deleted
, bool current_only
)
464 bool need_refresh
= false;
466 for (i
= 0; i
< content
.size (); i
++)
468 struct breakpoint
*bp
;
469 extern struct breakpoint
*breakpoint_chain
;
470 struct tui_source_element
*line
;
473 if (current_only
&& !line
->is_exec_point
)
476 /* Scan each breakpoint to see if the current line has something to
477 do with it. Identify enable/disabled breakpoints as well as
478 those that we already hit. */
479 tui_bp_flags mode
= 0;
480 for (bp
= breakpoint_chain
;
484 struct bp_location
*loc
;
486 gdb_assert (line
->line_or_addr
.loa
== LOA_LINE
487 || line
->line_or_addr
.loa
== LOA_ADDRESS
);
489 if (bp
== being_deleted
)
492 for (loc
= bp
->loc
; loc
!= NULL
; loc
= loc
->next
)
494 if (location_matches_p (loc
, i
))
496 if (bp
->enable_state
== bp_disabled
)
497 mode
|= TUI_BP_DISABLED
;
499 mode
|= TUI_BP_ENABLED
;
503 mode
|= TUI_BP_CONDITIONAL
;
504 if (bp
->type
== bp_hardware_breakpoint
)
505 mode
|= TUI_BP_HARDWARE
;
509 if (line
->break_mode
!= mode
)
511 line
->break_mode
= mode
;
518 /* Function to initialize the content of the execution info window,
519 based upon the input window which is either the source or
520 disassembly window. */
522 tui_source_window_base::update_exec_info ()
524 werase (execution_info
->handle
);
525 update_breakpoint_info (nullptr, true);
526 for (int i
= 0; i
< content
.size (); i
++)
528 struct tui_source_element
*src_element
= &content
[i
];
529 char element
[TUI_EXECINFO_SIZE
] = " ";
531 /* Now update the exec info content based upon the state
532 of each line as indicated by the source content. */
533 tui_bp_flags mode
= src_element
->break_mode
;
534 if (mode
& TUI_BP_HIT
)
535 element
[TUI_BP_HIT_POS
] = (mode
& TUI_BP_HARDWARE
) ? 'H' : 'B';
536 else if (mode
& (TUI_BP_ENABLED
| TUI_BP_DISABLED
))
537 element
[TUI_BP_HIT_POS
] = (mode
& TUI_BP_HARDWARE
) ? 'h' : 'b';
539 if (mode
& TUI_BP_ENABLED
)
540 element
[TUI_BP_BREAK_POS
] = '+';
541 else if (mode
& TUI_BP_DISABLED
)
542 element
[TUI_BP_BREAK_POS
] = '-';
544 if (src_element
->is_exec_point
)
545 element
[TUI_EXEC_POS
] = '>';
547 mvwaddstr (execution_info
->handle
, i
+ 1, 0, element
);
549 execution_info
->refresh_window ();