1 //===-- DWARFUnitTest.cpp -------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "Plugins/SymbolFile/DWARF/DWARFUnit.h"
10 #include "TestingSupport/Symbol/YAMLModuleTester.h"
11 #include "gmock/gmock.h"
12 #include "gtest/gtest.h"
13
14 using namespace lldb;
15 using namespace lldb_private;
16
TEST(DWARFUnitTest,NullUnitDie)17 TEST(DWARFUnitTest, NullUnitDie) {
18 // Make sure we don't crash parsing a null unit DIE.
19 const char *yamldata = R"(
20 --- !ELF
21 FileHeader:
22 Class: ELFCLASS64
23 Data: ELFDATA2LSB
24 Type: ET_EXEC
25 Machine: EM_386
26 DWARF:
27 debug_abbrev:
28 - Table:
29 - Code: 0x00000001
30 Tag: DW_TAG_compile_unit
31 Children: DW_CHILDREN_yes
32 Attributes:
33 - Attribute: DW_AT_language
34 Form: DW_FORM_data2
35 debug_info:
36 - Version: 4
37 AddrSize: 8
38 Entries:
39 - AbbrCode: 0x00000000
40 )";
41
42 YAMLModuleTester t(yamldata);
43 ASSERT_TRUE((bool)t.GetDwarfUnit());
44
45 DWARFUnit *unit = t.GetDwarfUnit();
46 const DWARFDebugInfoEntry *die_first = unit->DIE().GetDIE();
47 ASSERT_NE(die_first, nullptr);
48 EXPECT_TRUE(die_first->IsNULL());
49 }
50
TEST(DWARFUnitTest,MissingSentinel)51 TEST(DWARFUnitTest, MissingSentinel) {
52 // Make sure we don't crash if the debug info is missing a null DIE sentinel.
53 const char *yamldata = R"(
54 --- !ELF
55 FileHeader:
56 Class: ELFCLASS64
57 Data: ELFDATA2LSB
58 Type: ET_EXEC
59 Machine: EM_386
60 DWARF:
61 debug_abbrev:
62 - Table:
63 - Code: 0x00000001
64 Tag: DW_TAG_compile_unit
65 Children: DW_CHILDREN_yes
66 Attributes:
67 - Attribute: DW_AT_language
68 Form: DW_FORM_data2
69 debug_info:
70 - Version: 4
71 AddrSize: 8
72 Entries:
73 - AbbrCode: 0x00000001
74 Values:
75 - Value: 0x000000000000000C
76 )";
77
78 YAMLModuleTester t(yamldata);
79 ASSERT_TRUE((bool)t.GetDwarfUnit());
80
81 DWARFUnit *unit = t.GetDwarfUnit();
82 const DWARFDebugInfoEntry *die_first = unit->DIE().GetDIE();
83 ASSERT_NE(die_first, nullptr);
84 EXPECT_EQ(die_first->GetFirstChild(), nullptr);
85 EXPECT_EQ(die_first->GetSibling(), nullptr);
86 }
87
TEST(DWARFUnitTest,ClangProducer)88 TEST(DWARFUnitTest, ClangProducer) {
89 const char *yamldata = R"(
90 --- !ELF
91 FileHeader:
92 Class: ELFCLASS64
93 Data: ELFDATA2LSB
94 Type: ET_EXEC
95 Machine: EM_386
96 DWARF:
97 debug_str:
98 - 'Apple clang version 13.0.0 (clang-1300.0.29.3)'
99 debug_abbrev:
100 - Table:
101 - Code: 0x00000001
102 Tag: DW_TAG_compile_unit
103 Children: DW_CHILDREN_yes
104 Attributes:
105 - Attribute: DW_AT_producer
106 Form: DW_FORM_strp
107 debug_info:
108 - Version: 4
109 AddrSize: 8
110 Entries:
111 - AbbrCode: 0x1
112 Values:
113 - Value: 0x0
114 - AbbrCode: 0x0
115 )";
116
117 YAMLModuleTester t(yamldata);
118 DWARFUnit *unit = t.GetDwarfUnit();
119 ASSERT_TRUE((bool)unit);
120 EXPECT_EQ(unit->GetProducer(), eProducerClang);
121 EXPECT_EQ(unit->GetProducerVersion(), llvm::VersionTuple(1300, 0, 29, 3));
122 }
123
TEST(DWARFUnitTest,LLVMGCCProducer)124 TEST(DWARFUnitTest, LLVMGCCProducer) {
125 const char *yamldata = R"(
126 --- !ELF
127 FileHeader:
128 Class: ELFCLASS64
129 Data: ELFDATA2LSB
130 Type: ET_EXEC
131 Machine: EM_386
132 DWARF:
133 debug_str:
134 - 'i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)'
135 debug_abbrev:
136 - Table:
137 - Code: 0x00000001
138 Tag: DW_TAG_compile_unit
139 Children: DW_CHILDREN_yes
140 Attributes:
141 - Attribute: DW_AT_producer
142 Form: DW_FORM_strp
143 debug_info:
144 - Version: 4
145 AddrSize: 8
146 Entries:
147 - AbbrCode: 0x1
148 Values:
149 - Value: 0x0
150 - AbbrCode: 0x0
151 )";
152
153 YAMLModuleTester t(yamldata);
154 DWARFUnit *unit = t.GetDwarfUnit();
155 ASSERT_TRUE((bool)unit);
156 EXPECT_EQ(unit->GetProducer(), eProducerLLVMGCC);
157 }
158
TEST(DWARFUnitTest,SwiftProducer)159 TEST(DWARFUnitTest, SwiftProducer) {
160 const char *yamldata = R"(
161 --- !ELF
162 FileHeader:
163 Class: ELFCLASS64
164 Data: ELFDATA2LSB
165 Type: ET_EXEC
166 Machine: EM_386
167 DWARF:
168 debug_str:
169 - 'Apple Swift version 5.5 (swiftlang-1300.0.31.1 clang-1300.0.29.1)'
170 debug_abbrev:
171 - Table:
172 - Code: 0x00000001
173 Tag: DW_TAG_compile_unit
174 Children: DW_CHILDREN_yes
175 Attributes:
176 - Attribute: DW_AT_producer
177 Form: DW_FORM_strp
178 debug_info:
179 - Version: 4
180 AddrSize: 8
181 Entries:
182 - AbbrCode: 0x1
183 Values:
184 - Value: 0x0
185 - AbbrCode: 0x0
186 )";
187
188 YAMLModuleTester t(yamldata);
189 DWARFUnit *unit = t.GetDwarfUnit();
190 ASSERT_TRUE((bool)unit);
191 EXPECT_EQ(unit->GetProducer(), eProducerSwift);
192 EXPECT_EQ(unit->GetProducerVersion(), llvm::VersionTuple(1300, 0, 31, 1));
193 }
194