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/>. */
22 #ifndef TUI_TUI_WINSOURCE_H
23 #define TUI_TUI_WINSOURCE_H
25 #include "tui/tui-data.h"
27 /* Flags to tell what kind of breakpoint is at current line. */
30 TUI_BP_ENABLED = 0x01,
31 TUI_BP_DISABLED = 0x02,
33 TUI_BP_CONDITIONAL = 0x08,
34 TUI_BP_HARDWARE = 0x10
37 DEF_ENUM_FLAGS_TYPE (enum tui_bp_flag, tui_bp_flags);
39 /* Position of breakpoint markers in the exec info string. */
40 #define TUI_BP_HIT_POS 0
41 #define TUI_BP_BREAK_POS 1
42 #define TUI_EXEC_POS 2
43 #define TUI_EXECINFO_SIZE 4
45 typedef char tui_exec_info_content[TUI_EXECINFO_SIZE];
47 /* Execution info window class. */
49 struct tui_exec_info_window : public tui_gen_win_info
51 tui_exec_info_window ()
52 : tui_gen_win_info (EXEC_INFO_WIN)
56 ~tui_exec_info_window () override
61 /* Get or allocate contents. */
62 tui_exec_info_content *maybe_allocate_content (int n_elements);
64 /* Return the contents. */
65 const tui_exec_info_content *get_content () const
72 tui_exec_info_content *m_content = nullptr;
75 /* Elements in the Source/Disassembly Window. */
76 struct tui_source_element
80 line_or_addr.loa = LOA_LINE;
81 line_or_addr.u.line_no = 0;
84 ~tui_source_element ()
90 struct tui_line_or_address line_or_addr;
91 bool is_exec_point = false;
92 tui_bp_flags break_mode = 0;
96 /* The base class for all source-like windows, namely the source and
97 disassembly windows. */
99 struct tui_source_window_base : public tui_win_info
102 explicit tui_source_window_base (enum tui_win_type type);
103 ~tui_source_window_base () override;
104 DISABLE_COPY_AND_ASSIGN (tui_source_window_base);
106 void do_scroll_horizontal (int num_to_scroll) override;
107 void do_make_visible_with_new_height () override;
111 void clear_detail ();
113 void make_visible (bool visible) override;
114 void refresh_window () override;
115 void refresh_all () override;
117 /* Refill the source window's source cache and update it. If this
118 is a disassembly window, then just update it. */
121 /* Set the location of the execution point. */
122 void set_is_exec_point_at (struct tui_line_or_address l);
124 void set_new_height (int height) override;
126 void update_tab_width () override;
128 virtual bool location_matches_p (struct bp_location *loc, int line_no) = 0;
130 void reset (int height, int width,
131 int origin_x, int origin_y) override;
133 void show_source_content ();
135 void set_exec_info_content ();
136 void update_exec_info ();
138 /* Does the locator belong to this window? */
139 bool m_has_locator = false;
140 /* Execution information window. */
141 struct tui_exec_info_window *execution_info;
142 /* Used for horizontal scroll. */
143 int horizontal_offset = 0;
144 struct tui_line_or_address start_line_or_addr;
146 /* It is the resolved form as returned by symtab_to_fullname. */
147 char *fullname = nullptr;
149 /* Architecture associated with code at this location. */
150 struct gdbarch *gdbarch = nullptr;
152 std::vector<tui_source_element> content;
155 /* Update the execution windows to show the active breakpoints. This
156 is called whenever a breakpoint is inserted, removed or has its
157 state changed. Normally BEING_DELETED is nullptr; if not nullptr,
158 it indicates a breakpoint that is in the process of being deleted,
159 and which should therefore be ignored by the update. This is done
160 because the relevant observer is notified before the breakpoint is
161 removed from the list of breakpoints. */
162 extern void tui_update_all_breakpoint_info (struct breakpoint *being_deleted);
164 /* Scan the source window and the breakpoints to update the break_mode
165 information for each line. Returns true if something changed and
166 the execution window must be refreshed. See
167 tui_update_all_breakpoint_info for a description of
169 extern bool tui_update_breakpoint_info (struct tui_source_window_base *win,
170 struct breakpoint *being_deleted,
173 /* Function to display the "main" routine. */
174 extern void tui_display_main (void);
175 extern void tui_update_source_window (struct tui_source_window_base *,
176 struct gdbarch *, struct symtab *,
177 struct tui_line_or_address,
179 extern void tui_update_source_window_as_is (struct tui_source_window_base *,
180 struct gdbarch *, struct symtab *,
181 struct tui_line_or_address,
183 extern void tui_update_source_windows_with_addr (struct gdbarch *, CORE_ADDR);
184 extern void tui_update_source_windows_with_line (struct symtab *,
186 extern void tui_clear_source_content (struct tui_source_window_base *);
187 extern void tui_erase_source_content (struct tui_source_window_base *);
188 extern void tui_show_exec_info_content (struct tui_source_window_base *);
189 extern void tui_erase_exec_info_content (struct tui_source_window_base *);
190 extern void tui_clear_exec_info_content (struct tui_source_window_base *);
192 extern void tui_alloc_source_buffer (struct tui_source_window_base *);
193 extern int tui_line_is_displayed (int,
194 struct tui_source_window_base *,
196 extern int tui_addr_is_displayed (CORE_ADDR,
197 struct tui_source_window_base *,
201 /* Constant definitions. */
202 #define SCROLL_THRESHOLD 2 /* Threshold for lazy scroll. */
204 #endif /* TUI_TUI_WINSOURCE_H */