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Scott Linder
5e4b515c4b
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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@325970 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
1018 B
LLVM
22 lines
1018 B
LLVM
; RUN: llc %s -o %t -filetype=obj
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; RUN: llvm-dwarfdump -debug-line %t | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1 (trunk 143523)", isOptimized: true, emissionKind: FullDebug, file: !4, enums: !2, retainedTypes: !7, globals: !2)
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!2 = !{}
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!3 = !DIFile(filename: "empty.c", directory: "/home/nlewycky")
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!4 = !DIFile(filename: "empty.c", directory: "/home/nlewycky")
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!6 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 8, align: 8, file: !4, elements: !2, identifier: "_ZTS3foo")
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!7 = !{!6}
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; The important part of the following check is that dir = #0.
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; CHECK: file_names[ 1]:
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; CHECK-NEXT: name: "empty.c"
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; CHECK-NEXT: dir_index: 0
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!5 = !{i32 1, !"Debug Info Version", i32 3}
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