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
,
79 win_info
->horizontal_offset
= 0;
80 tui_update_source_window_as_is (win_info
, gdbarch
, s
, line_or_addr
, noerror
);
84 /* Function to display source in the source/asm window. This function
85 shows the source as specified by the horizontal offset. */
87 tui_update_source_window_as_is (struct tui_source_window_base
*win_info
,
88 struct gdbarch
*gdbarch
,
90 struct tui_line_or_address line_or_addr
,
95 if (win_info
->type
== SRC_WIN
)
96 ret
= tui_set_source_content (win_info
, s
, line_or_addr
.u
.line_no
,
99 ret
= tui_set_disassem_content (win_info
, gdbarch
, line_or_addr
.u
.addr
);
101 if (ret
== TUI_FAILURE
)
102 win_info
->erase_source_content ();
105 tui_update_breakpoint_info (win_info
, nullptr, false);
106 win_info
->show_source_content ();
107 win_info
->update_exec_info ();
108 if (win_info
->type
== SRC_WIN
)
112 sal
.line
= line_or_addr
.u
.line_no
+
113 (win_info
->content
.size () - 2);
115 sal
.pspace
= SYMTAB_PSPACE (s
);
116 set_current_source_symtab_and_line (sal
);
117 /* If the focus was in the asm win, put it in the src win if
118 we don't have a split layout. */
119 if (tui_win_with_focus () == TUI_DISASM_WIN
120 && tui_current_layout () != SRC_DISASSEM_COMMAND
)
121 tui_set_win_focus_to (win_info
);
127 /* Function to ensure that the source and/or disassemly windows
128 reflect the input address. */
130 tui_update_source_windows_with_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
134 struct symtab_and_line sal
;
135 struct tui_line_or_address l
;
137 switch (tui_current_layout ())
139 case DISASSEM_COMMAND
:
140 case DISASSEM_DATA_COMMAND
:
141 tui_show_disassem (gdbarch
, addr
);
143 case SRC_DISASSEM_COMMAND
:
144 tui_show_disassem_and_update_source (gdbarch
, addr
);
147 sal
= find_pc_line (addr
, 0);
149 l
.u
.line_no
= sal
.line
;
150 tui_show_symtab_source (TUI_SRC_WIN
, gdbarch
, sal
.symtab
, l
, FALSE
);
156 for (struct tui_source_window_base
*win_info
: tui_source_windows ())
157 win_info
->erase_source_content ();
161 /* Function to ensure that the source and/or disassemly windows
162 reflect the input address. */
164 tui_update_source_windows_with_line (struct symtab
*s
, int line
)
166 struct gdbarch
*gdbarch
;
168 struct tui_line_or_address l
;
173 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (s
));
175 switch (tui_current_layout ())
177 case DISASSEM_COMMAND
:
178 case DISASSEM_DATA_COMMAND
:
179 find_line_pc (s
, line
, &pc
);
180 tui_update_source_windows_with_addr (gdbarch
, pc
);
185 tui_show_symtab_source (TUI_SRC_WIN
, gdbarch
, s
, l
, FALSE
);
186 if (tui_current_layout () == SRC_DISASSEM_COMMAND
)
188 find_line_pc (s
, line
, &pc
);
189 tui_show_disassem (gdbarch
, pc
);
196 tui_source_window_base::do_erase_source_content (const char *str
)
199 int half_width
= (width
- 2) / 2;
205 check_and_display_highlight_if_needed ();
207 if (strlen (str
) >= half_width
)
210 x_pos
= half_width
- strlen (str
);
218 werase (execution_info
->handle
);
219 execution_info
->refresh_window ();
224 /* Redraw the complete line of a source or disassembly window. */
226 tui_show_source_line (struct tui_source_window_base
*win_info
, int lineno
)
228 struct tui_source_element
*line
;
231 line
= &win_info
->content
[lineno
- 1];
232 if (line
->is_exec_point
)
233 tui_set_reverse_mode (win_info
->handle
, true);
235 wmove (win_info
->handle
, lineno
, 1);
236 tui_puts (line
->line
,
238 if (line
->is_exec_point
)
239 tui_set_reverse_mode (win_info
->handle
, false);
241 /* Clear to end of line but stop before the border. */
242 x
= getcurx (win_info
->handle
);
243 while (x
+ 1 < win_info
->width
)
245 waddch (win_info
->handle
, ' ');
246 x
= getcurx (win_info
->handle
);
251 tui_source_window_base::show_source_content ()
253 if (!content
.empty ())
257 for (lineno
= 1; lineno
<= content
.size (); lineno
++)
258 tui_show_source_line (this, lineno
);
261 erase_source_content ();
263 check_and_display_highlight_if_needed ();
267 /* See tui-data.h. */
270 tui_source_window_base::clear_detail ()
273 start_line_or_addr
.loa
= LOA_ADDRESS
;
274 start_line_or_addr
.u
.addr
= 0;
275 horizontal_offset
= 0;
278 tui_source_window_base::tui_source_window_base (enum tui_win_type type
)
279 : tui_win_info (type
),
280 execution_info (new tui_exec_info_window ())
282 gdb_assert (type
== SRC_WIN
|| type
== DISASSEM_WIN
);
283 start_line_or_addr
.loa
= LOA_ADDRESS
;
284 start_line_or_addr
.u
.addr
= 0;
288 tui_source_window_base::~tui_source_window_base ()
291 delete execution_info
;
295 tui_source_window_base::resize (int height
, int width
,
296 int origin_x
, int origin_y
)
298 tui_gen_win_info::resize (height
, width
- 3,
299 origin_x
+ 3, origin_y
);
300 execution_info
->resize (height
, 3, origin_x
, origin_y
);
303 /* See tui-data.h. */
306 tui_source_window_base::refresh_all ()
308 show_source_content ();
309 check_and_display_highlight_if_needed ();
313 /* See tui-data.h. */
316 tui_source_window_base::update_tab_width ()
323 tui_source_window_base::rerender ()
325 if (!content
.empty ())
327 struct tui_line_or_address line_or_addr
;
328 struct symtab_and_line cursal
329 = get_current_source_symtab_and_line ();
331 line_or_addr
= start_line_or_addr
;
332 tui_update_source_window (this, gdbarch
,
333 cursal
.symtab
, line_or_addr
, TRUE
);
335 else if (deprecated_safe_get_selected_frame () != NULL
)
337 struct tui_line_or_address line
;
338 struct symtab_and_line cursal
339 = get_current_source_symtab_and_line ();
340 struct frame_info
*frame
= deprecated_safe_get_selected_frame ();
341 struct gdbarch
*gdbarch
= get_frame_arch (frame
);
343 struct symtab
*s
= find_pc_line_symtab (get_frame_pc (frame
));
347 line
.u
.line_no
= cursal
.line
;
351 line
.loa
= LOA_ADDRESS
;
352 find_line_pc (s
, cursal
.line
, &line
.u
.addr
);
354 tui_update_source_window (this, gdbarch
, s
, line
, TRUE
);
357 erase_source_content ();
360 /* See tui-data.h. */
363 tui_source_window_base::make_visible (bool visible
)
365 execution_info
->make_visible (visible
);
366 tui_win_info::make_visible (visible
);
369 /* See tui-data.h. */
372 tui_source_window_base::refresh_window ()
374 execution_info
->refresh_window ();
375 tui_win_info::refresh_window ();
378 /* See tui-data.h. */
381 tui_source_window_base::refill ()
387 symtab_and_line cursal
= get_current_source_symtab_and_line ();
388 s
= (cursal
.symtab
== NULL
389 ? find_pc_line_symtab (get_frame_pc (get_selected_frame (NULL
)))
393 tui_update_source_window_as_is (this, gdbarch
, s
,
394 content
[0].line_or_addr
,
398 /* Scroll the source forward or backward horizontally. */
401 tui_source_window_base::do_scroll_horizontal (int num_to_scroll
)
403 if (!content
.empty ())
405 int offset
= horizontal_offset
+ num_to_scroll
;
408 horizontal_offset
= offset
;
414 /* Set or clear the is_exec_point flag in the line whose line is
418 tui_source_window_base::set_is_exec_point_at (struct tui_line_or_address l
)
420 bool changed
= false;
424 while (i
< content
.size ())
427 struct tui_line_or_address content_loa
=
428 content
[i
].line_or_addr
;
430 gdb_assert (l
.loa
== LOA_ADDRESS
|| l
.loa
== LOA_LINE
);
431 gdb_assert (content_loa
.loa
== LOA_LINE
432 || content_loa
.loa
== LOA_ADDRESS
);
433 if (content_loa
.loa
== l
.loa
434 && ((l
.loa
== LOA_LINE
&& content_loa
.u
.line_no
== l
.u
.line_no
)
435 || (l
.loa
== LOA_ADDRESS
&& content_loa
.u
.addr
== l
.u
.addr
)))
439 if (new_state
!= content
[i
].is_exec_point
)
442 content
[i
].is_exec_point
= new_state
;
443 tui_show_source_line (this, i
+ 1);
451 /* See tui-winsource.h. */
454 tui_update_all_breakpoint_info (struct breakpoint
*being_deleted
)
456 for (tui_source_window_base
*win
: tui_source_windows ())
458 if (tui_update_breakpoint_info (win
, being_deleted
, false))
460 win
->update_exec_info ();
466 /* Scan the source window and the breakpoints to update the break_mode
467 information for each line.
469 Returns true if something changed and the execution window must be
473 tui_update_breakpoint_info (struct tui_source_window_base
*win
,
474 struct breakpoint
*being_deleted
,
478 bool need_refresh
= false;
480 for (i
= 0; i
< win
->content
.size (); i
++)
482 struct breakpoint
*bp
;
483 extern struct breakpoint
*breakpoint_chain
;
484 struct tui_source_element
*line
;
486 line
= &win
->content
[i
];
487 if (current_only
&& !line
->is_exec_point
)
490 /* Scan each breakpoint to see if the current line has something to
491 do with it. Identify enable/disabled breakpoints as well as
492 those that we already hit. */
493 tui_bp_flags mode
= 0;
494 for (bp
= breakpoint_chain
;
498 struct bp_location
*loc
;
500 gdb_assert (line
->line_or_addr
.loa
== LOA_LINE
501 || line
->line_or_addr
.loa
== LOA_ADDRESS
);
503 if (bp
== being_deleted
)
506 for (loc
= bp
->loc
; loc
!= NULL
; loc
= loc
->next
)
508 if (win
->location_matches_p (loc
, i
))
510 if (bp
->enable_state
== bp_disabled
)
511 mode
|= TUI_BP_DISABLED
;
513 mode
|= TUI_BP_ENABLED
;
517 mode
|= TUI_BP_CONDITIONAL
;
518 if (bp
->type
== bp_hardware_breakpoint
)
519 mode
|= TUI_BP_HARDWARE
;
523 if (line
->break_mode
!= mode
)
525 line
->break_mode
= mode
;
532 /* Function to initialize the content of the execution info window,
533 based upon the input window which is either the source or
534 disassembly window. */
536 tui_source_window_base::update_exec_info ()
538 werase (execution_info
->handle
);
539 tui_update_breakpoint_info (this, nullptr, true);
540 for (int i
= 0; i
< content
.size (); i
++)
542 struct tui_source_element
*src_element
= &content
[i
];
543 char element
[TUI_EXECINFO_SIZE
] = " ";
545 /* Now update the exec info content based upon the state
546 of each line as indicated by the source content. */
547 tui_bp_flags mode
= src_element
->break_mode
;
548 if (mode
& TUI_BP_HIT
)
549 element
[TUI_BP_HIT_POS
] = (mode
& TUI_BP_HARDWARE
) ? 'H' : 'B';
550 else if (mode
& (TUI_BP_ENABLED
| TUI_BP_DISABLED
))
551 element
[TUI_BP_HIT_POS
] = (mode
& TUI_BP_HARDWARE
) ? 'h' : 'b';
553 if (mode
& TUI_BP_ENABLED
)
554 element
[TUI_BP_BREAK_POS
] = '+';
555 else if (mode
& TUI_BP_DISABLED
)
556 element
[TUI_BP_BREAK_POS
] = '-';
558 if (src_element
->is_exec_point
)
559 element
[TUI_EXEC_POS
] = '>';
561 mvwaddstr (execution_info
->handle
, i
+ 1, 0, element
);
563 execution_info
->refresh_window ();