1 //===-- DWARFASTParserClangTests.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/DWARFASTParserClang.h" 10 #include "Plugins/SymbolFile/DWARF/DWARFCompileUnit.h" 11 #include "Plugins/SymbolFile/DWARF/DWARFDIE.h" 12 #include "TestingSupport/Symbol/YAMLModuleTester.h" 13 #include "gmock/gmock.h" 14 #include "gtest/gtest.h" 15 16 using namespace lldb; 17 using namespace lldb_private; 18 19 namespace { 20 class DWARFASTParserClangTests : public testing::Test {}; 21 22 class DWARFASTParserClangStub : public DWARFASTParserClang { 23 public: 24 using DWARFASTParserClang::DWARFASTParserClang; 25 using DWARFASTParserClang::LinkDeclContextToDIE; 26 27 std::vector<const clang::DeclContext *> GetDeclContextToDIEMapKeys() { 28 std::vector<const clang::DeclContext *> keys; 29 for (const auto &it : m_decl_ctx_to_die) 30 keys.push_back(it.first); 31 return keys; 32 } 33 }; 34 } // namespace 35 36 // If your implementation needs to dereference the dummy pointers we are 37 // defining here, causing this test to fail, feel free to delete it. 38 TEST_F(DWARFASTParserClangTests, 39 EnsureAllDIEsInDeclContextHaveBeenParsedParsesOnlyMatchingEntries) { 40 41 /// Auxiliary debug info. 42 const char *yamldata = R"( 43 --- !ELF 44 FileHeader: 45 Class: ELFCLASS64 46 Data: ELFDATA2LSB 47 Type: ET_EXEC 48 Machine: EM_386 49 DWARF: 50 debug_abbrev: 51 - Table: 52 - Code: 0x00000001 53 Tag: DW_TAG_compile_unit 54 Children: DW_CHILDREN_yes 55 Attributes: 56 - Attribute: DW_AT_language 57 Form: DW_FORM_data2 58 - Code: 0x00000002 59 Tag: DW_TAG_base_type 60 Children: DW_CHILDREN_no 61 Attributes: 62 - Attribute: DW_AT_encoding 63 Form: DW_FORM_data1 64 - Attribute: DW_AT_byte_size 65 Form: DW_FORM_data1 66 debug_info: 67 - Version: 4 68 AddrSize: 8 69 Entries: 70 - AbbrCode: 0x00000001 71 Values: 72 - Value: 0x000000000000000C 73 - AbbrCode: 0x00000002 74 Values: 75 - Value: 0x0000000000000007 # DW_ATE_unsigned 76 - Value: 0x0000000000000004 77 - AbbrCode: 0x00000002 78 Values: 79 - Value: 0x0000000000000007 # DW_ATE_unsigned 80 - Value: 0x0000000000000008 81 - AbbrCode: 0x00000002 82 Values: 83 - Value: 0x0000000000000005 # DW_ATE_signed 84 - Value: 0x0000000000000008 85 - AbbrCode: 0x00000002 86 Values: 87 - Value: 0x0000000000000008 # DW_ATE_unsigned_char 88 - Value: 0x0000000000000001 89 - AbbrCode: 0x00000000 90 )"; 91 92 YAMLModuleTester t(yamldata); 93 ASSERT_TRUE((bool)t.GetDwarfUnit()); 94 95 TypeSystemClang ast_ctx("dummy ASTContext", HostInfoBase::GetTargetTriple()); 96 DWARFASTParserClangStub ast_parser(ast_ctx); 97 98 DWARFUnit *unit = t.GetDwarfUnit(); 99 const DWARFDebugInfoEntry *die_first = unit->DIE().GetDIE(); 100 const DWARFDebugInfoEntry *die_child0 = die_first->GetFirstChild(); 101 const DWARFDebugInfoEntry *die_child1 = die_child0->GetSibling(); 102 const DWARFDebugInfoEntry *die_child2 = die_child1->GetSibling(); 103 const DWARFDebugInfoEntry *die_child3 = die_child2->GetSibling(); 104 std::vector<DWARFDIE> dies = { 105 DWARFDIE(unit, die_child0), DWARFDIE(unit, die_child1), 106 DWARFDIE(unit, die_child2), DWARFDIE(unit, die_child3)}; 107 std::vector<clang::DeclContext *> decl_ctxs = { 108 (clang::DeclContext *)1LL, (clang::DeclContext *)2LL, 109 (clang::DeclContext *)2LL, (clang::DeclContext *)3LL}; 110 for (int i = 0; i < 4; ++i) 111 ast_parser.LinkDeclContextToDIE(decl_ctxs[i], dies[i]); 112 ast_parser.EnsureAllDIEsInDeclContextHaveBeenParsed( 113 CompilerDeclContext(nullptr, decl_ctxs[1])); 114 115 EXPECT_THAT(ast_parser.GetDeclContextToDIEMapKeys(), 116 testing::UnorderedElementsAre(decl_ctxs[0], decl_ctxs[3])); 117 } 118 119