| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -filetype=obj < %s | llvm-dwarfdump -v - \ |
| ; RUN: | FileCheck --check-prefix=MONOLITHIC %s |
| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -split-dwarf-file=foo.dwo -filetype=obj < %s \ |
| ; RUN: | llvm-dwarfdump -v - | FileCheck --check-prefix=SPLIT %s |
| |
| ; This basic test checks the emission of a DWARF v5 string offsets table in |
| ; the split and non-split (monolithic) scenario. |
| ; |
| ; Constructed from the following source with |
| ; clang -S -emit-llvm -gdwarf-5 |
| ; |
| ; enum E {a, b, c}; |
| ; E glob; |
| ; |
| ; In the non-split scenario, check the DW_AT_str_offsets_base attribute |
| ; in .debug_abbrev. |
| ; MONOLITHIC: .debug_abbrev contents: |
| ; MONOLITHIC-NOT: contents: |
| ; MONOLITHIC: DW_TAG_compile_unit |
| ; MONOLITHIC-NOT: DW_TAG |
| ; MONOLITHIC: DW_AT_str_offsets_base DW_FORM_sec_offset |
| |
| ; Check that indexed strings come out correctly and that the DW_str_offsets_base attribute |
| ; is there and has the right value. |
| ; MONOLITHIC: .debug_info contents: |
| ; MONOLITHIC-NOT: contents: |
| ; MONOLITHIC: DW_TAG_compile_unit |
| ; MONOLITHIC-NOT: {{DW_TAG|NULL}} |
| ; MONOLITHIC: DW_AT_producer [DW_FORM_strx1] (indexed (00000000) string = "clang{{.*}}") |
| ; MONOLITHIC-NOT: {{DW_TAG|NULL}} |
| ; MONOLITHIC: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008) |
| ; MONOLITHIC-NOT: {{DW_TAG|NULL}} |
| ; MONOLITHIC: DW_AT_comp_dir [DW_FORM_strx1] (indexed (00000002) string = "/home/{{.*}}") |
| |
| ; Extract the string offsets from the .debug_str section so we can check that |
| ; they are referenced correctly in the .debug_str_offsets section. |
| ; MONOLITHIC: .debug_str contents: |
| ; MONOLITHIC-NEXT: 0x00000000: |
| ; MONOLITHIC-NEXT: 0x[[STRING2:[0-9a-f]]] |
| ; MONOLITHIC-NEXT: 0x[[STRING3:[0-9a-f]]] |
| ; MONOLITHIC-NEXT: 0x[[STRING4:[0-9a-f]]] |
| |
| ; Verify that the .debug_str_offsets section is there and that it starts |
| ; with an 8-byte header, followed by offsets into the .debug_str section. |
| ; MONOLITHIC: .debug_str_offsets contents: |
| ; MONOLITHIC-NEXT: Contribution size = 36, Format = DWARF32, Version = 5 |
| ; MONOLITHIC-NEXT: 0x00000008: 00000000 |
| ; MONOLITHIC-NEXT: 0x0000000c: [[STRING2]] |
| ; MONOLITHIC-NEXT: 0x00000010: [[STRING3]] |
| ; MONOLITHIC-NEXT: 0x00000014: [[STRING4]] |
| |
| ; For split dwarf, verify that the skeleton unit has the DW_AT_str_offsets_base |
| ; attribute and that it has the right value. |
| ; |
| ; SPLIT: .debug_info contents: |
| ; SPLIT-NEXT: 0x00000000: Compile Unit:{{.*}}DW_UT_skeleton |
| ; SPLIT-NOT: contents: |
| ; SPLIT: DW_TAG_skeleton_unit |
| ; SPLIT-NOT: {{DW_TAG|contents:}} |
| ; SPLIT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008) |
| ; SPLIT: DW_AT_comp_dir [DW_FORM_strx1] (indexed (00000000) string = "/home/test") |
| ; SPLIT: DW_AT_dwo_name [DW_FORM_strx1] (indexed (00000001) string = "foo.dwo") |
| |
| ; Check for the split CU in .debug_info.dwo. |
| ; SPLIT: .debug_info.dwo contents: |
| ; SPLIT-NEXT: 0x00000000: Compile Unit:{{.*}}DW_UT_split_compile |
| ; SPLIT-NOT: contents: |
| ; SPLIT: DW_TAG_compile_unit |
| ; |
| ; Check that a couple of indexed strings are displayed correctly and that |
| ; they have the right format (DW_FORM_strx1). |
| ; SPLIT-NOT: contents: |
| ; SPLIT: DW_TAG_enumerator |
| ; SPLIT-NOT: {{DW_TAG|NULL}} |
| ; SPLIT: DW_AT_name [DW_FORM_strx1] (indexed (00000001) string = "a") |
| ; SPLIT-NOT: contents: |
| ; SPLIT: DW_TAG_enumerator |
| ; SPLIT-NOT: {{DW_TAG|NULL}} |
| ; SPLIT: DW_AT_name [DW_FORM_strx1] (indexed (00000002) string = "b") |
| ; |
| ; Extract the string offsets referenced in the main file by the skeleton unit. |
| ; SPLIT: .debug_str contents: |
| ; SPLIT-NEXT: 0x[[STRHOMETESTSPLIT:[0-9a-f]*]]: "/home/test" |
| ; SPLIT-NEXT: 0x[[STRESPLIT:[0-9a-f]*]]: "E" |
| ; SPLIT-NEXT: 0x[[STRGLOBSPLIT:[0-9a-f]*]]: "glob" |
| ; SPLIT-NEXT: 0x[[STRFOODWOSPLIT:[0-9a-f]*]]: "foo.dwo" |
| ; |
| ; Extract the string offsets referenced in the .dwo file by the split unit. |
| ; SPLIT: .debug_str.dwo contents: |
| ; SPLIT-NEXT: 0x00000000:{{.*}} |
| ; SPLIT-NEXT: 0x[[STRING2DWO:[0-9a-f]*]]{{.*}} |
| ; SPLIT-NEXT: 0x[[STRING3DWO:[0-9a-f]*]]{{.*}} |
| ; |
| ; Check the string offsets sections in both the main and the .dwo files and |
| ; verify that the extracted string offsets are referenced correctly. The |
| ; sections should contain only the offsets of strings that are actually |
| ; referenced by the debug info. |
| ; SPLIT: .debug_str_offsets contents: |
| ; SPLIT-NEXT: 0x00000000: Contribution size = 12, Format = DWARF32, Version = 5 |
| ; SPLIT-NEXT: 0x00000008: [[STRHOMETESTSPLIT]] "/home/test" |
| ; SPLIT-NEXT: 0x0000000c: [[STRFOODWOSPLIT]] "foo.dwo" |
| ; SPLIT-EMPTY: |
| |
| ; SPLIT: .debug_str_offsets.dwo contents: |
| ; SPLIT-NEXT: 0x00000000: Contribution size = 36, Format = DWARF32, Version = 5 |
| ; SPLIT-NEXT: 0x00000008: 00000000{{.*}} |
| ; SPLIT-NEXT: 0x0000000c: [[STRING2DWO]]{{.*}} |
| ; SPLIT-NEXT: 0x00000010: [[STRING3DWO]] |
| |
| @glob = global i32 0, align 4, !dbg !0 |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!11, !12, !13} |
| !llvm.ident = !{!14} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "glob", scope: !2, file: !3, line: 3, type: !5, isLocal: false, isDefinition: true) |
| !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) |
| !3 = !DIFile(filename: "en.cpp", directory: "/home/test", checksumkind: CSK_MD5, checksum: "d96b2e2d618e550f0ddd0b6a49c98b02") |
| !4 = !{!5} |
| !5 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "E", file: !3, line: 1, size: 32, elements: !6, identifier: "_ZTS1E") |
| !6 = !{!7, !8, !9} |
| !7 = !DIEnumerator(name: "a", value: 0) |
| !8 = !DIEnumerator(name: "b", value: 1) |
| !9 = !DIEnumerator(name: "c", value: 2) |
| !10 = !{!0} |
| !11 = !{i32 2, !"Dwarf Version", i32 5} |
| !12 = !{i32 2, !"Debug Info Version", i32 3} |
| !13 = !{i32 1, !"wchar_size", i32 4} |
| !14 = !{!"clang version 7.0.0 (trunk 322415)"} |