Commit | Line | Data |
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f377b406 | 1 | /* TUI display source window. |
f33c6cbf | 2 | |
88b9d363 | 3 | Copyright (C) 1998-2022 Free Software Foundation, Inc. |
f33c6cbf | 4 | |
f377b406 SC |
5 | Contributed by Hewlett-Packard Company. |
6 | ||
7 | This file is part of GDB. | |
8 | ||
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 | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
f377b406 SC |
12 | (at your option) any later version. |
13 | ||
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. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
d1da6b01 | 23 | #include <math.h> |
c906108c SS |
24 | #include <ctype.h> |
25 | #include "symtab.h" | |
26 | #include "frame.h" | |
27 | #include "breakpoint.h" | |
c2c6d25f | 28 | #include "source.h" |
13274fc3 | 29 | #include "objfiles.h" |
a7417d46 | 30 | #include "filenames.h" |
62f29fda | 31 | #include "source-cache.h" |
c906108c | 32 | |
d7b2e967 AC |
33 | #include "tui/tui.h" |
34 | #include "tui/tui-data.h" | |
62f29fda | 35 | #include "tui/tui-io.h" |
d7b2e967 | 36 | #include "tui/tui-stack.h" |
d1da6b01 | 37 | #include "tui/tui-win.h" |
d7b2e967 AC |
38 | #include "tui/tui-winsource.h" |
39 | #include "tui/tui-source.h" | |
f237f998 | 40 | #include "tui/tui-location.h" |
6a83354a | 41 | #include "gdb_curses.h" |
c906108c | 42 | |
98427f35 | 43 | /* Function to display source in the source window. */ |
61c33f10 | 44 | bool |
81c82c4b | 45 | tui_source_window::set_contents (struct gdbarch *arch, |
9f7540a5 | 46 | const struct symtab_and_line &sal) |
c906108c | 47 | { |
9f7540a5 TT |
48 | struct symtab *s = sal.symtab; |
49 | int line_no = sal.line; | |
81c82c4b | 50 | |
61c33f10 TT |
51 | if (s == NULL) |
52 | return false; | |
53 | ||
61c33f10 TT |
54 | /* Take hilite (window border) into account, when |
55 | calculating the number of lines. */ | |
9e820dec | 56 | int nlines = height - 2; |
61c33f10 TT |
57 | |
58 | std::string srclines; | |
59 | const std::vector<off_t> *offsets; | |
60 | if (!g_source_cache.get_source_lines (s, line_no, line_no + nlines, | |
61 | &srclines) | |
62 | || !g_source_cache.get_line_charpos (s, &offsets)) | |
63 | return false; | |
64 | ||
65 | int cur_line_no, cur_line; | |
61c33f10 TT |
66 | const char *s_filename = symtab_to_filename_for_display (s); |
67 | ||
68 | title = s_filename; | |
c906108c | 69 | |
61c33f10 TT |
70 | m_fullname = make_unique_xstrdup (symtab_to_fullname (s)); |
71 | ||
72 | cur_line = 0; | |
08feed99 | 73 | m_gdbarch = SYMTAB_OBJFILE (s)->arch (); |
432b5c40 TT |
74 | m_start_line_or_addr.loa = LOA_LINE; |
75 | cur_line_no = m_start_line_or_addr.u.line_no = line_no; | |
61c33f10 | 76 | |
9e820dec | 77 | m_digits = 7; |
61c33f10 TT |
78 | if (compact_source) |
79 | { | |
80 | /* Solaris 11+gcc 5.5 has ambiguous overloads of log10, so we | |
81 | cast to double to get the right one. */ | |
82 | double l = log10 ((double) offsets->size ()); | |
9e820dec | 83 | m_digits = 1 + (int) l; |
61c33f10 TT |
84 | } |
85 | ||
9e820dec | 86 | m_max_length = -1; |
61c33f10 | 87 | const char *iter = srclines.c_str (); |
432b5c40 | 88 | m_content.resize (nlines); |
61c33f10 | 89 | while (cur_line < nlines) |
c906108c | 90 | { |
432b5c40 | 91 | struct tui_source_element *element = &m_content[cur_line]; |
61c33f10 TT |
92 | |
93 | std::string text; | |
94 | if (*iter != '\0') | |
9e820dec TT |
95 | { |
96 | int line_len; | |
97 | text = tui_copy_source_line (&iter, &line_len); | |
98 | m_max_length = std::max (m_max_length, line_len); | |
99 | } | |
61c33f10 TT |
100 | |
101 | /* Set whether element is the execution point | |
102 | and whether there is a break point on it. */ | |
103 | element->line_or_addr.loa = LOA_LINE; | |
104 | element->line_or_addr.u.line_no = cur_line_no; | |
105 | element->is_exec_point | |
f237f998 | 106 | = (filename_cmp (tui_location.full_name ().c_str (), |
61c33f10 | 107 | symtab_to_fullname (s)) == 0 |
f237f998 | 108 | && cur_line_no == tui_location.line_no ()); |
61c33f10 | 109 | |
432b5c40 | 110 | m_content[cur_line].line = std::move (text); |
61c33f10 TT |
111 | |
112 | cur_line++; | |
113 | cur_line_no++; | |
c906108c | 114 | } |
61c33f10 TT |
115 | |
116 | return true; | |
98427f35 | 117 | } |
c906108c SS |
118 | |
119 | ||
a358af15 AC |
120 | /* Answer whether the source is currently displayed in the source |
121 | window. */ | |
a38da35d TT |
122 | bool |
123 | tui_source_window::showing_source_p (const char *fullname) const | |
c906108c | 124 | { |
432b5c40 | 125 | return (!m_content.empty () |
f237f998 | 126 | && (filename_cmp (tui_location.full_name ().c_str (), |
56d397a3 | 127 | fullname) == 0)); |
98427f35 | 128 | } |
c906108c SS |
129 | |
130 | ||
98427f35 | 131 | /* Scroll the source forward or backward vertically. */ |
c906108c | 132 | void |
c3bd716f | 133 | tui_source_window::do_scroll_vertical (int num_to_scroll) |
c906108c | 134 | { |
432b5c40 | 135 | if (!m_content.empty ()) |
c906108c | 136 | { |
c906108c | 137 | struct symtab *s; |
52575520 | 138 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); |
432b5c40 | 139 | struct gdbarch *arch = m_gdbarch; |
c906108c | 140 | |
cafb3438 | 141 | if (cursal.symtab == NULL) |
9ae6bf64 TT |
142 | { |
143 | struct frame_info *fi = get_selected_frame (NULL); | |
144 | s = find_pc_line_symtab (get_frame_pc (fi)); | |
145 | arch = get_frame_arch (fi); | |
146 | } | |
c906108c | 147 | else |
52575520 | 148 | s = cursal.symtab; |
c906108c | 149 | |
432b5c40 | 150 | int line_no = m_start_line_or_addr.u.line_no + num_to_scroll; |
cb44333d TT |
151 | const std::vector<off_t> *offsets; |
152 | if (g_source_cache.get_line_charpos (s, &offsets) | |
9ae6bf64 | 153 | && line_no > offsets->size ()) |
432b5c40 | 154 | line_no = m_start_line_or_addr.u.line_no; |
9ae6bf64 TT |
155 | if (line_no <= 0) |
156 | line_no = 1; | |
27229e99 | 157 | |
9ae6bf64 | 158 | cursal.line = line_no; |
f5a7c406 AB |
159 | find_line_pc (cursal.symtab, cursal.line, &cursal.pc); |
160 | for (struct tui_source_window_base *win_info : tui_source_windows ()) | |
161 | win_info->update_source_window_as_is (arch, cursal); | |
c906108c | 162 | } |
98427f35 | 163 | } |
b73dd877 | 164 | |
c2cd8994 TT |
165 | bool |
166 | tui_source_window::location_matches_p (struct bp_location *loc, int line_no) | |
167 | { | |
432b5c40 TT |
168 | return (m_content[line_no].line_or_addr.loa == LOA_LINE |
169 | && m_content[line_no].line_or_addr.u.line_no == loc->line_number | |
c2cd8994 | 170 | && loc->symtab != NULL |
7226433c | 171 | && filename_cmp (m_fullname.get (), |
c2cd8994 TT |
172 | symtab_to_fullname (loc->symtab)) == 0); |
173 | } | |
a54700c6 | 174 | |
c9033fe8 TT |
175 | /* See tui-source.h. */ |
176 | ||
177 | bool | |
178 | tui_source_window::line_is_displayed (int line) const | |
179 | { | |
432b5c40 | 180 | if (m_content.size () < SCROLL_THRESHOLD) |
cbfa8581 SV |
181 | return false; |
182 | ||
432b5c40 | 183 | for (size_t i = 0; i < m_content.size () - SCROLL_THRESHOLD; ++i) |
c9033fe8 | 184 | { |
432b5c40 TT |
185 | if (m_content[i].line_or_addr.loa == LOA_LINE |
186 | && m_content[i].line_or_addr.u.line_no == line) | |
cbfa8581 | 187 | return true; |
c9033fe8 TT |
188 | } |
189 | ||
cbfa8581 | 190 | return false; |
c9033fe8 TT |
191 | } |
192 | ||
a54700c6 | 193 | void |
1ae58f0c | 194 | tui_source_window::maybe_update (struct frame_info *fi, symtab_and_line sal) |
a54700c6 | 195 | { |
1630140d | 196 | int start_line = (sal.line - ((height - 2) / 2)) + 1; |
a54700c6 TT |
197 | if (start_line <= 0) |
198 | start_line = 1; | |
199 | ||
200 | bool source_already_displayed = (sal.symtab != 0 | |
7226433c | 201 | && showing_source_p (m_fullname.get ())); |
a54700c6 | 202 | |
1ae58f0c | 203 | if (!(source_already_displayed && line_is_displayed (sal.line))) |
9f7540a5 TT |
204 | { |
205 | sal.line = start_line; | |
206 | update_source_window (get_frame_arch (fi), sal); | |
207 | } | |
a54700c6 TT |
208 | else |
209 | { | |
9f7540a5 TT |
210 | struct tui_line_or_address l; |
211 | ||
212 | l.loa = LOA_LINE; | |
1ae58f0c | 213 | l.u.line_no = sal.line; |
a54700c6 TT |
214 | set_is_exec_point_at (l); |
215 | } | |
216 | } | |
432b5c40 TT |
217 | |
218 | void | |
219 | tui_source_window::display_start_addr (struct gdbarch **gdbarch_p, | |
220 | CORE_ADDR *addr_p) | |
221 | { | |
222 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); | |
223 | ||
224 | *gdbarch_p = m_gdbarch; | |
225 | find_line_pc (cursal.symtab, m_start_line_or_addr.u.line_no, addr_p); | |
226 | } | |
9e820dec TT |
227 | |
228 | /* See tui-winsource.h. */ | |
229 | ||
230 | void | |
231 | tui_source_window::show_line_number (int offset) const | |
232 | { | |
233 | int lineno = m_content[0].line_or_addr.u.line_no + offset; | |
234 | char text[20]; | |
1b6d4bb2 HD |
235 | /* To completely overwrite the previous border when the source window height |
236 | is increased, both spaces after the line number have to be redrawn. */ | |
237 | xsnprintf (text, sizeof (text), "%*d ", m_digits - 1, lineno); | |
9e820dec TT |
238 | waddstr (handle.get (), text); |
239 | } |