16c7bdaf32
In DWARF v5 the Line Number Program Header is extensible, allowing values with new content types. In this extension a content type is added, DW_LNCT_LLVM_source, which contains the embedded source code of the file. Add new optional attribute for !DIFile IR metadata called source which contains source text. Use this to output the source to the DWARF line table of code objects. Analogously extend METADATA_FILE in Bitcode and .file directive in ASM to support optional source. Teach llvm-dwarfdump and llvm-objdump about the new values. Update the output format of llvm-dwarfdump to make room for the new attribute on file_names entries, and support embedded sources for the -source option in llvm-objdump. Differential Revision: https://reviews.llvm.org/D42765 llvm-svn: 325970
60 lines
2.7 KiB
LLVM
60 lines
2.7 KiB
LLVM
; MD5 checksums provided by IR should be passed through to asm.
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; They'll be emitted to an object file only for DWARF 5 or later.
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; Darwin clamps the line table at DWARF v2 so XFAIL this test.
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; XFAIL: darwin
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; REQUIRES: object-emission
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; RUN: %llc_dwarf -dwarf-version 4 -filetype=asm -o - %s | FileCheck %s --check-prefix=ASM
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; RUN: %llc_dwarf -dwarf-version 5 -filetype=asm -o - %s | FileCheck %s --check-prefix=ASM
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; RUN: %llc_dwarf -dwarf-version 4 -filetype=obj -o %t4.o %s
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; RUN: llvm-dwarfdump -debug-line %t4.o | FileCheck %s --check-prefix=OBJ-4
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; RUN: %llc_dwarf -dwarf-version 5 -filetype=obj -o %t5.o %s
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; RUN: llvm-dwarfdump -debug-line %t5.o | FileCheck %s --check-prefix=OBJ-5
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; FIXME: Need to convey the MD5 for the primary source file.
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; ASM: .file 1 ".{{/|\\\\}}t1.h" md5 "11111111111111111111111111111111"
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; ASM: .file 2 ".{{/|\\\\}}t2.h" md5 "22222222222222222222222222222222"
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; OBJ-4: file_names[ 1]:
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; OBJ-4-NEXT: name: "t1.h"
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; OBJ-4-NEXT: dir_index: 1
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; OBJ-4: file_names[ 2]:
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; OBJ-4-NEXT: name: "t2.h"
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; OBJ-4-NEXT: dir_index: 1
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; OBJ-5: file_names[ 0]:
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; OBJ-5-NEXT: name: "t1.h"
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; OBJ-5-NEXT: dir_index: 1
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; OBJ-5-NEXT: md5_checksum: 11111111111111111111111111111111
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; OBJ-5: file_names[ 1]:
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; OBJ-5-NEXT: name: "t2.h"
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; OBJ-5-NEXT: dir_index: 1
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; OBJ-5-NEXT: md5_checksum: 22222222222222222222222222222222
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; ModuleID = 't.c'
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source_filename = "t.c"
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@t1 = global i32 1, align 4, !dbg !0
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@t2 = global i32 0, align 4, !dbg !6
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!11, !12, !13}
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!llvm.ident = !{!14}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "t1", scope: !2, file: !10, line: 1, type: !9, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0 (trunk 322159)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
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!3 = !DIFile(filename: "t.c", directory: "/home/probinson/projects/scratch", checksumkind: CSK_MD5, checksum: "00000000000000000000000000000000")
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!4 = !{}
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!5 = !{!0, !6}
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!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
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!7 = distinct !DIGlobalVariable(name: "t2", scope: !2, file: !8, line: 1, type: !9, isLocal: false, isDefinition: true)
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!8 = !DIFile(filename: "./t2.h", directory: "/home/probinson/projects/scratch", checksumkind: CSK_MD5, checksum: "22222222222222222222222222222222")
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!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!10 = !DIFile(filename: "./t1.h", directory: "/home/probinson/projects/scratch", checksumkind: CSK_MD5, checksum: "11111111111111111111111111111111")
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!11 = !{i32 2, !"Dwarf Version", i32 4}
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!12 = !{i32 2, !"Debug Info Version", i32 3}
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!13 = !{i32 1, !"wchar_size", i32 4}
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!14 = !{!"clang version 7.0.0 (trunk 322159)"}
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