diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp --- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp @@ -36,6 +36,7 @@ #include "llvm/Support/Casting.h" #include "llvm/Support/CommandLine.h" #include "llvm/Target/TargetLoweringObjectFile.h" +#include "llvm/Target/TargetMachine.h" #include #include #include @@ -930,7 +931,8 @@ if (CTy->isAppleBlockExtension()) addFlag(Buffer, dwarf::DW_AT_APPLE_block); - if (CTy->getExportSymbols()) + if (CTy->getExportSymbols() && + (!Asm->TM.Options.DebugStrictDwarf || DD->getDwarfVersion() >= 5)) addFlag(Buffer, dwarf::DW_AT_export_symbols); // This is outside the DWARF spec, but GDB expects a DW_AT_containing_type @@ -1064,7 +1066,8 @@ Name = "(anonymous namespace)"; DD->addAccelNamespace(*CUNode, Name, NDie); addGlobalName(Name, NDie, NS->getScope()); - if (NS->getExportSymbols()) + if (NS->getExportSymbols() && + (!Asm->TM.Options.DebugStrictDwarf || DD->getDwarfVersion() >= 5)) addFlag(NDie, dwarf::DW_AT_export_symbols); return &NDie; } diff --git a/llvm/test/DebugInfo/PowerPC/export-symbol.ll b/llvm/test/DebugInfo/PowerPC/export-symbol.ll --- a/llvm/test/DebugInfo/PowerPC/export-symbol.ll +++ b/llvm/test/DebugInfo/PowerPC/export-symbol.ll @@ -0,0 +1,34 @@ +; RUN: %llc_dwarf -O0 -filetype=obj -mtriple=powerpc64le-unknown-linux-gnu < %s | \ +; RUN: llvm-dwarfdump -debug-info - | FileCheck %s +; RUN: %llc_dwarf -O0 -filetype=obj -mtriple=powerpc64le-unknown-linux-gnu \ +; RUN: -strict-dwarf=true < %s | llvm-dwarfdump -debug-info - | \ +; RUN: FileCheck %s --check-prefix=STRICT + +; CHECK: DW_AT_export_symbols +; STRICT-NOT: DW_AT_export_symbols + +%struct.A = type { %struct.anon } +%struct.anon = type { i32 } + +@a = global %struct.A zeroinitializer, align 4, !dbg !0 + +!llvm.module.flags = !{!14, !15} +!llvm.dbg.cu = !{!2} +!llvm.ident = !{!16} + +!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) +!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 5, type: !6, isLocal: false, isDefinition: true) +!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 10.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: GNU) +!3 = !DIFile(filename: "simple_anon_class.cpp", directory: "/dir") +!4 = !{} +!5 = !{!0} +!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !3, line: 1, size: 32, flags: DIFlagTypePassByValue, elements: !7, identifier: "_ZTS1A") +!7 = !{!8} +!8 = !DIDerivedType(tag: DW_TAG_member, scope: !6, file: !3, line: 2, baseType: !9, size: 32) +!9 = distinct !DICompositeType(tag: DW_TAG_structure_type, scope: !6, file: !3, line: 2, size: 32, flags: DIFlagExportSymbols | DIFlagTypePassByValue, elements: !10, identifier: "_ZTSN1AUt_E") +!10 = !{!11} +!11 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !9, file: !3, line: 3, baseType: !12, size: 32) +!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!14 = !{i32 2, !"Dwarf Version", i32 4} +!15 = !{i32 2, !"Debug Info Version", i32 3} +!16 = !{!"clang version 10.0.0"}