diff options
Diffstat (limited to 'llvm/unittests/DebugInfo/GSYM/GSYMTest.cpp')
| -rw-r--r-- | llvm/unittests/DebugInfo/GSYM/GSYMTest.cpp | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/llvm/unittests/DebugInfo/GSYM/GSYMTest.cpp b/llvm/unittests/DebugInfo/GSYM/GSYMTest.cpp index 33f53de..d560073 100644 --- a/llvm/unittests/DebugInfo/GSYM/GSYMTest.cpp +++ b/llvm/unittests/DebugInfo/GSYM/GSYMTest.cpp @@ -4899,3 +4899,189 @@ TEST(GSYMTest, TestLookupsOfOverlappingAndUnequalRanges) { for (const auto &Line : ExpectedDumpLines) EXPECT_TRUE(DumpStr.find(Line) != std::string::npos); } + +TEST(GSYMTest, TestUnableToLocateDWO) { + // Test that llvm-gsymutil will not produce "uanble to locate DWO file" for + // Apple binaries. Apple uses DW_AT_GNU_dwo_id for non split DWARF purposes + // and this makes llvm-gsymutil create warnings and errors. + // + // 0x0000000b: DW_TAG_compile_unit + // DW_AT_name ("main.cpp") + // DW_AT_language (DW_LANG_C) + // DW_AT_GNU_dwo_id (0xfffffffe) + StringRef yamldata = R"( + debug_str: + - '' + - main.cpp + debug_abbrev: + - ID: 0 + Table: + - Code: 0x1 + Tag: DW_TAG_compile_unit + Children: DW_CHILDREN_no + Attributes: + - Attribute: DW_AT_name + Form: DW_FORM_strp + - Attribute: DW_AT_language + Form: DW_FORM_udata + - Attribute: DW_AT_GNU_dwo_id + Form: DW_FORM_data4 + debug_info: + - Length: 0x11 + Version: 4 + AbbrevTableID: 0 + AbbrOffset: 0x0 + AddrSize: 8 + Entries: + - AbbrCode: 0x1 + Values: + - Value: 0x1 + - Value: 0x2 + - Value: 0xFFFFFFFE + )"; + auto ErrOrSections = DWARFYAML::emitDebugSections(yamldata); + ASSERT_THAT_EXPECTED(ErrOrSections, Succeeded()); + std::unique_ptr<DWARFContext> DwarfContext = + DWARFContext::create(*ErrOrSections, 8); + ASSERT_TRUE(DwarfContext.get() != nullptr); + std::string errors; + raw_string_ostream OS(errors); + OutputAggregator OSAgg(&OS); + GsymCreator GC; + // Make a DWARF transformer that is MachO (Apple) to avoid warnings about + // not finding DWO files. + DwarfTransformer DT(*DwarfContext, GC, /*LDCS=*/false, /*MachO*/ true); + const uint32_t ThreadCount = 1; + ASSERT_THAT_ERROR(DT.convert(ThreadCount, OSAgg), Succeeded()); + ASSERT_THAT_ERROR(GC.finalize(OSAgg), Succeeded()); + + // Make sure this warning is not in the binary + std::string warn("warning: Unable to retrieve DWO .debug_info section for"); + EXPECT_TRUE(errors.find(warn) == std::string::npos); +} + +TEST(GSYMTest, TestDWARFTransformNoErrorForMissingFileDecl) { + // Test that if llvm-gsymutil finds a line table for a compile unit and if + // there are no matching entries for a function in that compile unit, that + // it doesn't print out a error saying that a DIE has an invalid file index + // if there is no DW_AT_decl_file attribute. + // + // 0x0000000b: DW_TAG_compile_unit + // DW_AT_name ("main.cpp") + // DW_AT_language (DW_LANG_C) + // DW_AT_stmt_list (0x00000000) + // + // 0x00000015: DW_TAG_subprogram + // DW_AT_name ("foo") + // DW_AT_low_pc (0x0000000000001000) + // DW_AT_high_pc (0x0000000000001050) + // + // 0x0000002a: NULL + // + // Line table that has entries, but none that match "foo": + // + // Address Line Column File ISA Discriminator OpIndex Flags + // ------------------ ------ ------ ------ --- ------------- ------- ----- + // 0x0000000000002000 10 0 1 0 0 0 is_stmt + // 0x0000000000002050 13 0 1 0 0 0 is_stmt + + StringRef yamldata = R"( + debug_str: + - '' + - main.cpp + debug_abbrev: + - ID: 0 + Table: + - Code: 0x1 + Tag: DW_TAG_compile_unit + Children: DW_CHILDREN_yes + Attributes: + - Attribute: DW_AT_name + Form: DW_FORM_strp + - Attribute: DW_AT_language + Form: DW_FORM_udata + - Attribute: DW_AT_stmt_list + Form: DW_FORM_sec_offset + - Code: 0x2 + Tag: DW_TAG_subprogram + Children: DW_CHILDREN_no + Attributes: + - Attribute: DW_AT_name + Form: DW_FORM_string + - Attribute: DW_AT_low_pc + Form: DW_FORM_addr + - Attribute: DW_AT_high_pc + Form: DW_FORM_addr + debug_info: + - Length: 0x27 + Version: 4 + AbbrevTableID: 0 + AbbrOffset: 0x0 + AddrSize: 8 + Entries: + - AbbrCode: 0x1 + Values: + - Value: 0x1 + - Value: 0x2 + - Value: 0x0 + - AbbrCode: 0x2 + Values: + - Value: 0xDEADBEEFDEADBEEF + CStr: foo + - Value: 0x1000 + - Value: 0x1050 + - AbbrCode: 0x0 + debug_line: + - Length: 58 + Version: 2 + PrologueLength: 31 + MinInstLength: 1 + DefaultIsStmt: 1 + LineBase: 251 + LineRange: 14 + OpcodeBase: 13 + StandardOpcodeLengths: [ 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1 ] + Files: + - Name: main.cpp + DirIdx: 0 + ModTime: 0 + Length: 0 + Opcodes: + - Opcode: DW_LNS_extended_op + ExtLen: 9 + SubOpcode: DW_LNE_set_address + Data: 8192 + - Opcode: DW_LNS_advance_line + SData: 9 + Data: 0 + - Opcode: DW_LNS_copy + Data: 0 + - Opcode: DW_LNS_advance_pc + Data: 80 + - Opcode: DW_LNS_advance_line + SData: 3 + Data: 0 + - Opcode: DW_LNS_extended_op + ExtLen: 1 + SubOpcode: DW_LNE_end_sequence + Data: 0 + )"; + auto ErrOrSections = DWARFYAML::emitDebugSections(yamldata); + ASSERT_THAT_EXPECTED(ErrOrSections, Succeeded()); + std::unique_ptr<DWARFContext> DwarfContext = + DWARFContext::create(*ErrOrSections, 8); + ASSERT_TRUE(DwarfContext.get() != nullptr); + std::string errors; + raw_string_ostream OS(errors); + OutputAggregator OSAgg(&OS); + GsymCreator GC; + DwarfTransformer DT(*DwarfContext, GC); + const uint32_t ThreadCount = 1; + ASSERT_THAT_ERROR(DT.convert(ThreadCount, OSAgg), Succeeded()); + ASSERT_THAT_ERROR(GC.finalize(OSAgg), Succeeded()); + + // Make sure this warning is not in the binary + std::string error_str("error: function DIE at 0x00000015 has an invalid file " + "index 4294967295 in its DW_AT_decl_file attribute"); + EXPECT_TRUE(errors.find(error_str) == std::string::npos); +} |