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
)
94 ret
= tui_set_source_content (this, s
, line_or_addr
.u
.line_no
);
96 ret
= tui_set_disassem_content (this, gdbarch
, line_or_addr
.u
.addr
);
98 if (ret
== TUI_FAILURE
)
99 erase_source_content ();
102 tui_update_breakpoint_info (this, nullptr, false);
103 show_source_content ();
109 sal
.line
= line_or_addr
.u
.line_no
+ (content
.size () - 2);
111 sal
.pspace
= SYMTAB_PSPACE (s
);
112 set_current_source_symtab_and_line (sal
);
113 /* If the focus was in the asm win, put it in the src win if
114 we don't have a split layout. */
115 if (tui_win_with_focus () == TUI_DISASM_WIN
116 && tui_current_layout () != SRC_DISASSEM_COMMAND
)
117 tui_set_win_focus_to (this);
123 /* Function to ensure that the source and/or disassemly windows
124 reflect the input address. */
126 tui_update_source_windows_with_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
130 struct symtab_and_line sal
;
131 struct tui_line_or_address l
;
133 switch (tui_current_layout ())
135 case DISASSEM_COMMAND
:
136 case DISASSEM_DATA_COMMAND
:
137 tui_show_disassem (gdbarch
, addr
);
139 case SRC_DISASSEM_COMMAND
:
140 tui_show_disassem_and_update_source (gdbarch
, addr
);
143 sal
= find_pc_line (addr
, 0);
145 l
.u
.line_no
= sal
.line
;
146 tui_show_symtab_source (TUI_SRC_WIN
, gdbarch
, sal
.symtab
, l
);
152 for (struct tui_source_window_base
*win_info
: tui_source_windows ())
153 win_info
->erase_source_content ();
157 /* Function to ensure that the source and/or disassemly windows
158 reflect the input address. */
160 tui_update_source_windows_with_line (struct symtab
*s
, int line
)
162 struct gdbarch
*gdbarch
;
164 struct tui_line_or_address l
;
169 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (s
));
171 switch (tui_current_layout ())
173 case DISASSEM_COMMAND
:
174 case DISASSEM_DATA_COMMAND
:
175 find_line_pc (s
, line
, &pc
);
176 tui_update_source_windows_with_addr (gdbarch
, pc
);
181 tui_show_symtab_source (TUI_SRC_WIN
, gdbarch
, s
, l
);
182 if (tui_current_layout () == SRC_DISASSEM_COMMAND
)
184 find_line_pc (s
, line
, &pc
);
185 tui_show_disassem (gdbarch
, pc
);
192 tui_source_window_base::do_erase_source_content (const char *str
)
195 int half_width
= (width
- 2) / 2;
201 check_and_display_highlight_if_needed ();
203 if (strlen (str
) >= half_width
)
206 x_pos
= half_width
- strlen (str
);
214 werase (execution_info
->handle
);
215 execution_info
->refresh_window ();
220 /* Redraw the complete line of a source or disassembly window. */
222 tui_show_source_line (struct tui_source_window_base
*win_info
, int lineno
)
224 struct tui_source_element
*line
;
227 line
= &win_info
->content
[lineno
- 1];
228 if (line
->is_exec_point
)
229 tui_set_reverse_mode (win_info
->handle
, true);
231 wmove (win_info
->handle
, lineno
, 1);
232 tui_puts (line
->line
,
234 if (line
->is_exec_point
)
235 tui_set_reverse_mode (win_info
->handle
, false);
237 /* Clear to end of line but stop before the border. */
238 x
= getcurx (win_info
->handle
);
239 while (x
+ 1 < win_info
->width
)
241 waddch (win_info
->handle
, ' ');
242 x
= getcurx (win_info
->handle
);
247 tui_source_window_base::show_source_content ()
249 if (!content
.empty ())
253 for (lineno
= 1; lineno
<= content
.size (); lineno
++)
254 tui_show_source_line (this, lineno
);
257 erase_source_content ();
259 check_and_display_highlight_if_needed ();
263 /* See tui-data.h. */
266 tui_source_window_base::clear_detail ()
269 start_line_or_addr
.loa
= LOA_ADDRESS
;
270 start_line_or_addr
.u
.addr
= 0;
271 horizontal_offset
= 0;
274 tui_source_window_base::tui_source_window_base (enum tui_win_type type
)
275 : tui_win_info (type
),
276 execution_info (new tui_exec_info_window ())
278 gdb_assert (type
== SRC_WIN
|| type
== DISASSEM_WIN
);
279 start_line_or_addr
.loa
= LOA_ADDRESS
;
280 start_line_or_addr
.u
.addr
= 0;
284 tui_source_window_base::~tui_source_window_base ()
287 delete execution_info
;
291 tui_source_window_base::resize (int height
, int width
,
292 int origin_x
, int origin_y
)
294 tui_gen_win_info::resize (height
, width
- 3,
295 origin_x
+ 3, origin_y
);
296 execution_info
->resize (height
, 3, origin_x
, origin_y
);
299 /* See tui-data.h. */
302 tui_source_window_base::refresh_all ()
304 show_source_content ();
305 check_and_display_highlight_if_needed ();
309 /* See tui-data.h. */
312 tui_source_window_base::update_tab_width ()
319 tui_source_window_base::rerender ()
321 if (!content
.empty ())
323 struct tui_line_or_address line_or_addr
;
324 struct symtab_and_line cursal
325 = get_current_source_symtab_and_line ();
327 line_or_addr
= start_line_or_addr
;
328 update_source_window (gdbarch
, cursal
.symtab
, line_or_addr
);
330 else if (deprecated_safe_get_selected_frame () != NULL
)
332 struct tui_line_or_address line
;
333 struct symtab_and_line cursal
334 = get_current_source_symtab_and_line ();
335 struct frame_info
*frame
= deprecated_safe_get_selected_frame ();
336 struct gdbarch
*gdbarch
= get_frame_arch (frame
);
338 struct symtab
*s
= find_pc_line_symtab (get_frame_pc (frame
));
342 line
.u
.line_no
= cursal
.line
;
346 line
.loa
= LOA_ADDRESS
;
347 find_line_pc (s
, cursal
.line
, &line
.u
.addr
);
349 update_source_window (gdbarch
, s
, line
);
352 erase_source_content ();
355 /* See tui-data.h. */
358 tui_source_window_base::make_visible (bool visible
)
360 execution_info
->make_visible (visible
);
361 tui_win_info::make_visible (visible
);
364 /* See tui-data.h. */
367 tui_source_window_base::refresh_window ()
369 execution_info
->refresh_window ();
370 tui_win_info::refresh_window ();
373 /* See tui-data.h. */
376 tui_source_window_base::refill ()
382 symtab_and_line cursal
= get_current_source_symtab_and_line ();
383 s
= (cursal
.symtab
== NULL
384 ? find_pc_line_symtab (get_frame_pc (get_selected_frame (NULL
)))
388 update_source_window_as_is (gdbarch
, s
, content
[0].line_or_addr
);
391 /* Scroll the source forward or backward horizontally. */
394 tui_source_window_base::do_scroll_horizontal (int num_to_scroll
)
396 if (!content
.empty ())
398 int offset
= horizontal_offset
+ num_to_scroll
;
401 horizontal_offset
= offset
;
407 /* Set or clear the is_exec_point flag in the line whose line is
411 tui_source_window_base::set_is_exec_point_at (struct tui_line_or_address l
)
413 bool changed
= false;
417 while (i
< content
.size ())
420 struct tui_line_or_address content_loa
=
421 content
[i
].line_or_addr
;
423 gdb_assert (l
.loa
== LOA_ADDRESS
|| l
.loa
== LOA_LINE
);
424 gdb_assert (content_loa
.loa
== LOA_LINE
425 || content_loa
.loa
== LOA_ADDRESS
);
426 if (content_loa
.loa
== l
.loa
427 && ((l
.loa
== LOA_LINE
&& content_loa
.u
.line_no
== l
.u
.line_no
)
428 || (l
.loa
== LOA_ADDRESS
&& content_loa
.u
.addr
== l
.u
.addr
)))
432 if (new_state
!= content
[i
].is_exec_point
)
435 content
[i
].is_exec_point
= new_state
;
436 tui_show_source_line (this, i
+ 1);
444 /* See tui-winsource.h. */
447 tui_update_all_breakpoint_info (struct breakpoint
*being_deleted
)
449 for (tui_source_window_base
*win
: tui_source_windows ())
451 if (tui_update_breakpoint_info (win
, being_deleted
, false))
453 win
->update_exec_info ();
459 /* Scan the source window and the breakpoints to update the break_mode
460 information for each line.
462 Returns true if something changed and the execution window must be
466 tui_update_breakpoint_info (struct tui_source_window_base
*win
,
467 struct breakpoint
*being_deleted
,
471 bool need_refresh
= false;
473 for (i
= 0; i
< win
->content
.size (); i
++)
475 struct breakpoint
*bp
;
476 extern struct breakpoint
*breakpoint_chain
;
477 struct tui_source_element
*line
;
479 line
= &win
->content
[i
];
480 if (current_only
&& !line
->is_exec_point
)
483 /* Scan each breakpoint to see if the current line has something to
484 do with it. Identify enable/disabled breakpoints as well as
485 those that we already hit. */
486 tui_bp_flags mode
= 0;
487 for (bp
= breakpoint_chain
;
491 struct bp_location
*loc
;
493 gdb_assert (line
->line_or_addr
.loa
== LOA_LINE
494 || line
->line_or_addr
.loa
== LOA_ADDRESS
);
496 if (bp
== being_deleted
)
499 for (loc
= bp
->loc
; loc
!= NULL
; loc
= loc
->next
)
501 if (win
->location_matches_p (loc
, i
))
503 if (bp
->enable_state
== bp_disabled
)
504 mode
|= TUI_BP_DISABLED
;
506 mode
|= TUI_BP_ENABLED
;
510 mode
|= TUI_BP_CONDITIONAL
;
511 if (bp
->type
== bp_hardware_breakpoint
)
512 mode
|= TUI_BP_HARDWARE
;
516 if (line
->break_mode
!= mode
)
518 line
->break_mode
= mode
;
525 /* Function to initialize the content of the execution info window,
526 based upon the input window which is either the source or
527 disassembly window. */
529 tui_source_window_base::update_exec_info ()
531 werase (execution_info
->handle
);
532 tui_update_breakpoint_info (this, nullptr, true);
533 for (int i
= 0; i
< content
.size (); i
++)
535 struct tui_source_element
*src_element
= &content
[i
];
536 char element
[TUI_EXECINFO_SIZE
] = " ";
538 /* Now update the exec info content based upon the state
539 of each line as indicated by the source content. */
540 tui_bp_flags mode
= src_element
->break_mode
;
541 if (mode
& TUI_BP_HIT
)
542 element
[TUI_BP_HIT_POS
] = (mode
& TUI_BP_HARDWARE
) ? 'H' : 'B';
543 else if (mode
& (TUI_BP_ENABLED
| TUI_BP_DISABLED
))
544 element
[TUI_BP_HIT_POS
] = (mode
& TUI_BP_HARDWARE
) ? 'h' : 'b';
546 if (mode
& TUI_BP_ENABLED
)
547 element
[TUI_BP_BREAK_POS
] = '+';
548 else if (mode
& TUI_BP_DISABLED
)
549 element
[TUI_BP_BREAK_POS
] = '-';
551 if (src_element
->is_exec_point
)
552 element
[TUI_EXEC_POS
] = '>';
554 mvwaddstr (execution_info
->handle
, i
+ 1, 0, element
);
556 execution_info
->refresh_window ();