1; REQUIRES: object-emission 2; RUN: llc -mtriple=x86_64-unknown-linux-gnu -filetype=obj < %s | llvm-dwarfdump -v - | \ 3; RUN: FileCheck --check-prefix=DEFAULT --check-prefix=BOTH %s 4; RUN: llc -mtriple=x86_64-unknown-linux-gnu -filetype=obj -generate-type-units < %s | \ 5; RUN: llvm-dwarfdump -v - | FileCheck --check-prefix=TYPEUNITS --check-prefix=BOTH %s 6; 7; Check that we generate the DWARF v5 string offsets section correctly when we 8; have multiple compile and type units. All units share one contribution to 9; the string offsets section. 10; 11; Constructed from the following sources with 12; clang -gdwarf-5 -emit-llvm -S a.cpp 13; clang -gdwarf-5 -emit-llvm -S b.cpp 14; clang -gdwarf-5 -emit-llvm -S c.cpp 15; llvm-link a.ll b.ll c.ll -o test.bc 16; llvm-dis test.bc -o test.ll 17; 18; a.cpp: 19; enum E1 {a, b, c}; 20; E1 glob1; 21; 22; b.cpp: 23; enum E2 {d, e, f}; 24; E2 glob2; 25; 26; c.cpp: 27; enum E3 {g, h, i}; 28; E3 glob3; 29; 30; Check that all 3 compile units have the correct DW_AT_str_offsets_base attributes 31; with the correct offsets. Check that strings referenced by compile units 2 and 3 32; are displayed correctly. 33; 34; CU 1 35; BOTH: .debug_info contents: 36; BOTH-NOT: .contents: 37; BOTH: DW_TAG_compile_unit 38; BOTH-NOT: {{DW_TAG|NULL}} 39; BOTH: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF:[0-9a-f]+]]) 40; 41; CU 2 42; BOTH-NOT: contents: 43; BOTH: DW_TAG_compile_unit 44; BOTH-NOT: {{DW_TAG|NULL}} 45; BOTH: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]]) 46; BOTH-NOT: NULL 47; BOTH: DW_TAG_variable 48; BOTH-NOT: {{DW_TAG|NULL}} 49; BOTH: DW_AT_name [DW_FORM_strx1] ( indexed (00000009) string = "glob2") 50; 51; CU 3 52; BOTH-NOT: contents: 53; BOTH: DW_TAG_compile_unit 54; BOTH-NOT: {{DW_TAG|NULL}} 55; BOTH: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]]) 56; BOTH-NOT: NULL 57; BOTH: DW_TAG_variable 58; BOTH-NOT: {{DW_TAG|NULL}} 59; BOTH: DW_AT_name [DW_FORM_strx1] ( indexed (0000000f) string = "glob3") 60; 61; Verify that all 3 type units have the proper DW_AT_str_offsets_base attribute. 62; TYPEUNITS: .debug_types contents: 63; TYPEUNITS-NOT: contents: 64; TYPEUNITS: DW_TAG_type_unit 65; TYPEUNITS-NOT: {{DW_TAG|NULL}} 66; TYPEUNITS: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]]) 67; TYPEUNITS-NOT: NULL 68; TYPEUNITS: DW_TAG_enumerator 69; TYPEUNITS-NOT: NULL 70; TYPEUNITS: DW_TAG_enumerator 71; TYPEUNITS-NOT: {{DW_TAG|NULL}} 72; TYPEUNITS: DW_AT_name [DW_FORM_strx1] ( indexed (00000005) string = "b") 73; TYPEUNITS-NOT: contents: 74; TYPEUNITS: DW_TAG_type_unit 75; TYPEUNITS-NOT: {{DW_TAG|NULL}} 76; TYPEUNITS: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]]) 77; TYPEUNITS-NOT: NULL 78; TYPEUNITS: DW_TAG_enumeration_type 79; TYPEUNITS: DW_AT_name [DW_FORM_strx1] ( indexed (0000000d) string = "E2") 80; TYPEUNITS-NOT: contents: 81; TYPEUNITS: DW_TAG_type_unit 82; TYPEUNITS-NOT: {{DW_TAG|NULL}} 83; TYPEUNITS: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]]) 84; TYPEUNITS-NOT: NULL 85; TYPEUNITS: DW_TAG_enumeration_type 86; TYPEUNITS: DW_AT_name [DW_FORM_strx1] ( indexed (00000013) string = "E3") 87; 88; Extract the offset of a string to verify that it is referenced in the string 89; offsets section. 90; BOTH: .debug_str contents: 91; BOTH-NOT: contents: 92; BOTH: 0x[[GLOB2OFF:[0-9a-f]+]]: "glob2" 93; 94; Check the .debug_str_offsets section header and make sure the referenced string 95; has the correct offset. 96; BOTH: .debug_str_offsets contents: 97; BOTH-NEXT: 0x00000000: Contribution size = 84, Format = DWARF32, Version = 5 98; BOTH-NEXT: 0x[[CU1_STROFF]]: 99; BOTH-NEXT: {{.*:}} 100; BOTH-NEXT: {{.*:}} 101; BOTH-NEXT: {{.*:}} 102; BOTH-NEXT: {{.*:}} 103; BOTH-NEXT: {{.*:}} 104; BOTH-NEXT: {{.*:}} 105; BOTH-NEXT: {{.*:}} 106; BOTH-NEXT: {{.*:}} 107; The string with index 9 should be "glob2" 108; BOTH-NEXT: {{.*:}} [[GLOB2OFF]] 109; 110; ModuleID = 'test.bc' 111source_filename = "llvm-link" 112 113@glob1 = global i32 0, align 4, !dbg !0 114@glob2 = global i32 0, align 4, !dbg !11 115@glob3 = global i32 0, align 4, !dbg !22 116 117!llvm.dbg.cu = !{!2, !13, !24} 118!llvm.ident = !{!33, !33, !33} 119!llvm.module.flags = !{!34, !35, !36} 120 121!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 122!1 = distinct !DIGlobalVariable(name: "glob1", scope: !2, file: !3, line: 2, type: !5, isLocal: false, isDefinition: true) 123!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 7.0.0 (trunk 322415)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !10) 124!3 = !DIFile(filename: "a1.cpp", directory: "/home/test", checksumkind: CSK_MD5, checksum: "2ca3eeed18355d6ebbae671eafda5aae") 125!4 = !{!5} 126!5 = distinct !DICompositeType(tag: DW_TAG_enumeration_type, name: "E1", file: !3, line: 1, size: 32, elements: !6, identifier: "_ZTS2E1") 127!6 = !{!7, !8, !9} 128!7 = !DIEnumerator(name: "a", value: 0) 129!8 = !DIEnumerator(name: "b", value: 1) 130!9 = !DIEnumerator(name: "c", value: 2) 131!10 = !{!0} 132!11 = !DIGlobalVariableExpression(var: !12, expr: !DIExpression()) 133!12 = distinct !DIGlobalVariable(name: "glob2", scope: !13, file: !14, line: 2, type: !16, isLocal: false, isDefinition: true) 134!13 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !14, producer: "clang version 7.0.0 (trunk 322415)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !15, globals: !21) 135!14 = !DIFile(filename: "b.cpp", directory: "/home/test", checksumkind: CSK_MD5, checksum: "0e254f89617ecb6c4e5473546a99435c") 136!15 = !{!16} 137!16 = distinct !DICompositeType(tag: DW_TAG_enumeration_type, name: "E2", file: !14, line: 1, size: 32, elements: !17, identifier: "_ZTS2E2") 138!17 = !{!18, !19, !20} 139!18 = !DIEnumerator(name: "d", value: 0) 140!19 = !DIEnumerator(name: "e", value: 1) 141!20 = !DIEnumerator(name: "f", value: 2) 142!21 = !{!11} 143!22 = !DIGlobalVariableExpression(var: !23, expr: !DIExpression()) 144!23 = distinct !DIGlobalVariable(name: "glob3", scope: !24, file: !25, line: 2, type: !27, isLocal: false, isDefinition: true) 145!24 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !25, producer: "clang version 7.0.0 (trunk 322415)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !26, globals: !32) 146!25 = !DIFile(filename: "c.cpp", directory: "/home/test", checksumkind: CSK_MD5, checksum: "7835aaaa683fa09d295adef0e934d392") 147!26 = !{!27} 148!27 = distinct !DICompositeType(tag: DW_TAG_enumeration_type, name: "E3", file: !25, line: 1, size: 32, elements: !28, identifier: "_ZTS2E3") 149!28 = !{!29, !30, !31} 150!29 = !DIEnumerator(name: "g", value: 0) 151!30 = !DIEnumerator(name: "h", value: 1) 152!31 = !DIEnumerator(name: "i", value: 2) 153!32 = !{!22} 154!33 = !{!"clang version 7.0.0 (trunk 322415)"} 155!34 = !{i32 2, !"Dwarf Version", i32 5} 156!35 = !{i32 2, !"Debug Info Version", i32 3} 157!36 = !{i32 1, !"wchar_size", i32 4} 158