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213516ef | 1 | # Copyright 2020-2023 Free Software Foundation, Inc. |
1313c56e AB |
2 | |
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | # Setup a line table where: | |
17 | # | |
18 | # | Addr | File | Line | Stmt | Inline | | |
19 | # |------|------|------|------|--------| | |
20 | # | 1 | 1 | 16 | Y | | | |
21 | # | 2 | 1 | 17 | Y | | | |
22 | # | 3 | 2 | 21 | Y | X | | |
23 | # | 4 | 2 | 22 | Y | X | | |
24 | # | 4 | 1 | 18 | N | X | | |
25 | # | 5 | 1 | 19 | Y | | | |
26 | # | 6 | 1 | 20 | Y | | | |
27 | # | 7 | 1 | END | Y | | | |
28 | # |------|------|------|------|--------| | |
29 | # | |
30 | # | |
31 | # Place the first brekpoint at file 2, line 22 and a second breakpoint | |
32 | # at file 1, line 19. A third breakpoint is placed at file 1, line | |
33 | # 18, but as this line table entry will have been discarded[1] the | |
34 | # third breakpoint will actually be placed at the same location as the | |
35 | # second breakpoint. | |
36 | # | |
37 | # This test is designed to test GDB's internal behaviour with respect | |
38 | # to discarding particular line table entries. GCC and DWARF are | |
39 | # starting to introduce the idea of line table views. As the views | |
40 | # information becomes better supported within GDB it is likely that | |
41 | # this will become out of date. This is fine, the test will have | |
42 | # served its purpose by that point and can be deleted. | |
43 | # | |
44 | # [1] The entry for file 1, line 18 is discarded because it is at the | |
45 | # same address as the previous entry, but the previous entry is-stmt, | |
46 | # while line 18 is a non-stmt. | |
47 | ||
48 | load_lib dwarf.exp | |
49 | ||
50 | # This test can only be run on targets which support DWARF-2 and use gas. | |
51 | if {![dwarf2_support]} { | |
52 | return 0 | |
53 | } | |
54 | ||
55 | # The .c files use __attribute__. | |
ef7a6b97 | 56 | if ![is_c_compiler_gcc] { |
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57 | return 0 |
58 | } | |
59 | ||
60 | standard_testfile dw2-inline-header-lbls.c dw2-inline-header.S \ | |
61 | dw2-inline-header.c dw2-inline-header.h | |
62 | ||
63 | set build_options {nodebug optimize=-O1} | |
64 | ||
65 | set asm_file [standard_output_file $srcfile2] | |
66 | Dwarf::assemble $asm_file { | |
67 | global srcdir subdir srcfile srcfile3 srcfile4 | |
68 | global build_options | |
69 | declare_labels lines_label callee_subprog_label | |
70 | ||
71 | get_func_info main $build_options | |
72 | ||
73 | cu {} { | |
74 | compile_unit { | |
75 | {producer "gcc" } | |
76 | {language @DW_LANG_C} | |
77 | {name ${srcfile3}} | |
78 | {low_pc 0 addr} | |
79 | {stmt_list ${lines_label} DW_FORM_sec_offset} | |
80 | } { | |
81 | callee_subprog_label: subprogram { | |
82 | {external 1 flag} | |
83 | {name callee} | |
84 | {inline 3 data1} | |
85 | } | |
86 | subprogram { | |
87 | {external 1 flag} | |
88 | {name main} | |
89 | {low_pc $main_start addr} | |
90 | {high_pc "$main_start + $main_len" addr} | |
91 | } { | |
92 | inlined_subroutine { | |
93 | {abstract_origin %$callee_subprog_label} | |
94 | {low_pc line_label_3 addr} | |
95 | {high_pc line_label_5 addr} | |
96 | {call_file 1 data1} | |
97 | {call_line 18 data1} | |
98 | } | |
99 | } | |
100 | } | |
101 | } | |
102 | ||
103 | lines {version 2 default_is_stmt 1} lines_label { | |
104 | include_dir "${srcdir}/${subdir}" | |
105 | file_name "$srcfile3" 1 | |
106 | file_name "$srcfile4" 1 | |
107 | ||
108 | program { | |
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109 | DW_LNE_set_address line_label_1 |
110 | DW_LNS_advance_line 15 | |
111 | DW_LNS_copy | |
112 | ||
113 | DW_LNE_set_address line_label_2 | |
114 | DW_LNS_advance_line 1 | |
115 | DW_LNS_copy | |
116 | ||
117 | DW_LNS_set_file 2 | |
118 | DW_LNE_set_address line_label_3 | |
119 | DW_LNS_advance_line 4 | |
120 | DW_LNS_copy | |
121 | ||
122 | DW_LNE_set_address line_label_4 | |
123 | DW_LNS_advance_line 1 | |
124 | DW_LNS_copy | |
125 | ||
126 | DW_LNS_advance_line -4 | |
127 | DW_LNS_set_file 1 | |
128 | DW_LNS_negate_stmt | |
129 | DW_LNS_copy | |
130 | ||
131 | DW_LNE_set_address line_label_5 | |
132 | DW_LNS_advance_line 1 | |
133 | DW_LNS_negate_stmt | |
134 | DW_LNS_copy | |
135 | ||
136 | DW_LNE_set_address line_label_6 | |
137 | DW_LNS_advance_line 1 | |
138 | DW_LNS_copy | |
139 | ||
140 | DW_LNE_set_address line_label_7 | |
141 | DW_LNE_end_sequence | |
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142 | } |
143 | } | |
144 | } | |
145 | ||
146 | if { [prepare_for_testing "failed to prepare" ${testfile} \ | |
147 | [list $srcfile $asm_file] $build_options] } { | |
148 | return -1 | |
149 | } | |
150 | ||
151 | if ![runto_main] { | |
152 | return -1 | |
153 | } | |
154 | ||
155 | # Delete all breakpoints so that the output of "info breakpoints" | |
156 | # below will only contain a single breakpoint. | |
157 | delete_breakpoints | |
158 | ||
159 | # Place a breakpoint within the function in the header file. | |
160 | gdb_breakpoint "${srcfile4}:22" | |
161 | ||
162 | # Check that the breakpoint was placed where we expected. It should | |
163 | # appear at the requested line. When the bug in GDB was present the | |
164 | # breakpoint would be placed on one of the following lines instead. | |
165 | gdb_test "info breakpoints" \ | |
166 | ".* in callee at \[^\r\n\]+${srcfile4}:22\\y.*" \ | |
167 | "check for breakpoint at ${srcfile4}" | |
168 | ||
169 | # Delete all breakpoints so that the output of "info breakpoints" | |
170 | # below will only contain a single breakpoint. | |
171 | delete_breakpoints | |
172 | ||
173 | # Place a breakpoint within the function in the header file. | |
174 | gdb_breakpoint "${srcfile3}:19" | |
175 | ||
176 | # Check that the breakpoint was placed where we expected. It should | |
177 | # appear at the requested line. When the bug in GDB was present the | |
178 | # breakpoint would be placed on one of the following lines instead. | |
179 | gdb_test "info breakpoints" \ | |
180 | ".* in main at \[^\r\n\]+${srcfile3}:19\\y.*" \ | |
181 | "check for breakpoint at ${srcfile3}" | |
182 | ||
183 | # Line table entry for line 18 will have been discarded, so this | |
184 | # brekpoint will be at the same location as line 19. | |
185 | gdb_test "break ${srcfile3}:18" \ | |
186 | "Note: breakpoint $decimal also set at pc $hex.*" |