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88b9d363 | 1 | # Copyright 2019-2022 Free Software Foundation, Inc. |
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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 | # Import a CU into an "artificial" CU. For each DW_TAG DIE in the | |
17 | # artificial CU, use DW_AT_abstract_origin to refer to a DIE in the | |
18 | # imported CU. This DWARF file organization is frequently found in | |
19 | # programs compiled with -flto (and -g) using GCC. | |
20 | # | |
21 | # This test reproduces the bug described in BZ 25065 without relying | |
22 | # on specific compiler versions or use of optimization switches, in | |
23 | # this case -flto. | |
24 | ||
25 | if [skip_cplus_tests] { | |
26 | continue | |
27 | } | |
28 | ||
29 | load_lib dwarf.exp | |
30 | ||
31 | # This test can only be run on targets which support DWARF-2 and use gas. | |
32 | if {![dwarf2_support]} { | |
33 | return 0 | |
34 | }; | |
35 | ||
36 | standard_testfile .c .S | |
37 | ||
38 | # ${testfile} is now "implref-struct". srcfile2 is "implref-struct.S". | |
39 | set executable ${testfile} | |
40 | set asm_file [standard_output_file ${srcfile2}] | |
41 | ||
42 | # We need to know the size of integer and address types in order | |
43 | # to write some of the debugging info we'd like to generate. | |
44 | if [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {debug c++}] { | |
45 | return -1 | |
46 | } | |
47 | ||
48 | # Create the DWARF. | |
49 | Dwarf::assemble $asm_file { | |
50 | declare_labels cu_label main_label doit_label int_label | |
51 | declare_labels Foo_label Foo_pointer_type doit_self_label | |
52 | declare_labels foo_label Foo_destructor_obj_pointer_label | |
53 | declare_labels Foo_constructor_obj_pointer_label | |
54 | set int_size [get_sizeof "int" 4] | |
55 | set addr_size [get_sizeof "void *" 8] | |
56 | ||
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57 | cu {} { |
58 | compile_unit { | |
59 | {language @DW_LANG_C_plus_plus} | |
60 | {name "<artificial>"} | |
61 | } { | |
62 | imported_unit { | |
c14aab8c | 63 | {import %$cu_label} |
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64 | } |
65 | subprogram { | |
c14aab8c | 66 | {abstract_origin %$main_label} |
90c3ec2d | 67 | {MACRO_AT_range {main}} |
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68 | } { |
69 | subprogram { | |
c14aab8c | 70 | {abstract_origin %$doit_label} |
90c3ec2d | 71 | {MACRO_AT_range {doit}} |
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72 | } { |
73 | formal_parameter { | |
c14aab8c | 74 | {abstract_origin %$doit_self_label} |
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75 | } |
76 | } | |
77 | DW_TAG_variable { | |
c14aab8c | 78 | {abstract_origin %$foo_label} |
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79 | {location 4 data1} |
80 | } | |
81 | } | |
82 | } | |
83 | } | |
84 | ||
85 | cu {} { | |
86 | cu_label: compile_unit { | |
87 | {language @DW_LANG_C_plus_plus} | |
88 | {name "imported_unit.c"} | |
89 | } { | |
90 | int_label: base_type { | |
91 | {byte_size $int_size sdata} | |
92 | {encoding @DW_ATE_signed} | |
93 | {name int} | |
94 | } | |
95 | ||
96 | main_label: subprogram { | |
97 | {name main} | |
98 | {type :$int_label} | |
99 | {external 1 flag} | |
100 | } { | |
101 | Foo_label: class_type { | |
102 | {name Foo} | |
103 | {byte_size 1 sdata} | |
104 | } { | |
105 | doit_label: subprogram { | |
106 | {name doit} | |
107 | {type :$int_label} | |
108 | {accessibility 1 DW_FORM_data1} | |
109 | } { | |
110 | doit_self_label: formal_parameter { | |
111 | {name this} | |
112 | {artificial 1 DW_FORM_flag_present} | |
113 | {type :$Foo_pointer_type} | |
114 | } | |
115 | } | |
116 | Foo_pointer_type: pointer_type { | |
117 | {byte_size $addr_size sdata} | |
118 | {type :$Foo_label} | |
119 | } | |
120 | } | |
121 | foo_label: DW_TAG_variable { | |
122 | {name foo} | |
123 | {type :$Foo_label} | |
124 | } | |
125 | } | |
126 | } | |
127 | } | |
128 | } | |
129 | ||
130 | if { [prepare_for_testing "failed to prepare" ${testfile} \ | |
131 | [list $srcfile $asm_file] {nodebug}] } { | |
132 | return -1 | |
133 | } | |
134 | ||
135 | gdb_test_no_output "set language c++" | |
136 | ||
14ca8ecf TV |
137 | set psymtabs_p [psymtabs_p] |
138 | ||
96c7f873 TV |
139 | # Verify that the partial symtab for the unit importing the partial unit does |
140 | # not contain the static partial symbol int, which is defined in the partial | |
141 | # unit. Test-case for PR25646. | |
14ca8ecf TV |
142 | set test "no static partial symbols in importing unit" |
143 | if { $psymtabs_p } { | |
144 | gdb_test "main print psymbols" \ | |
145 | [multi_line \ | |
146 | " Depends on 1 other partial symtabs\." \ | |
147 | "\[^\r\n\]*" \ | |
148 | " Global partial symbols:" \ | |
149 | " `main', function, $hex" \ | |
150 | "" \ | |
151 | ".*"] \ | |
152 | $test | |
153 | } else { | |
154 | unsupported $test | |
155 | } | |
3d5afab3 TV |
156 | |
157 | # Verify that there's only one partial symtab for imported_unit.c. Test-case | |
158 | # for PR25700. | |
159 | set test "no duplicate psymtab for imported_unit.c" | |
160 | if { $psymtabs_p } { | |
161 | set line "Partial symtab for source file imported_unit.c" | |
162 | gdb_test_multiple "maint print psymbols" $test { | |
163 | -re -wrap "$line.*$line.*" { | |
164 | fail $gdb_test_name | |
165 | } | |
166 | -re -wrap "$line.*" { | |
167 | pass $gdb_test_name | |
168 | } | |
169 | } | |
170 | } else { | |
171 | unsupported $test | |
172 | } | |
173 | ||
eea9e357 TV |
174 | gdb_test "l imported_unit.c:1" \ |
175 | "1\timported_unit.c: No such file or directory\." | |
176 | ||
177 | gdb_test "info source" "\r\nCurrent source file is imported_unit.c\r\n.*" \ | |
178 | "info source for imported_unit.c" | |
179 | ||
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180 | # Sanity check |
181 | gdb_test "ptype main" "= int \\(void\\)" | |
182 | ||
183 | # Each of these tests caused a segfault prior to fixing BZ 25065. | |
184 | gdb_test "ptype main::Foo" "= class Foo \{\\s+public:\\s+int doit\\(void\\);\\s+\}" | |
185 | gdb_test "ptype main::foo" "= class Foo \{\\s+public:\\s+int doit\\(void\\);\\s+\}" |