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be4ac84b4f
Currently, we emit DW_AT_addr_base that points to the beginning of the .debug_addr section. That is not correct for the DWARF5 case because address table contains the header and the attribute should point to the first entry following the header. This is currently the reason why LLDB does not work with such executables correctly. Patch fixes the issue. Differential revision: https://reviews.llvm.org/D52168 llvm-svn: 342635
80 lines
2.8 KiB
LLVM
80 lines
2.8 KiB
LLVM
; RUN: llc -split-dwarf-file=test.dwo -dwarf-version=4 %s -mtriple=i386-unknown-linux-gnu -filetype=obj -o - | \
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; RUN: llvm-dwarfdump -v - | FileCheck %s -check-prefix=DWARF4
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; RUN: llc -split-dwarf-file=test.dwo -dwarf-version=5 %s -mtriple=i386-unknown-linux-gnu -filetype=obj -o - | \
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; RUN: llvm-dwarfdump -v - | FileCheck %s -check-prefix=DWARF5
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; Source:
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; void foo() {
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; }
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;
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; void bar() {
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; }
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; DWARF4: .debug_info contents:
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; DWARF4: Compile Unit:{{.*}}version = 0x0004
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; DWARF4-NOT: Compile Unit
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; DWARF4: DW_TAG_compile_unit
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; DWARF4-NOT: DW_TAG_{{.*}}
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; DWARF4: DW_AT_GNU_dwo_name{{.*}}test.dwo
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; DWARF4: DW_AT_GNU_addr_base{{.*}}0x00000000
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; DWARF4: .debug_addr contents:
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; DWARF4-NEXT: 0x00000000: Addr Section: length = 0x00000000, version = 0x0004, addr_size = 0x04, seg_size = 0x00
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; DWARF4-NEXT: Addrs: [
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; DWARF4-NEXT: 0x00000000
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; DWARF4-NEXT: 0x00000010
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; DWARF4-NEXT: ]
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; DWARF5: .debug_info contents:
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; DWARF5: Compile Unit:{{.*}}version = 0x0005
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; DWARF5-NOT: Compile Unit
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; DWARF5: DW_TAG_compile_unit
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; DWARF5-NOT: DW_TAG_{{.*}}
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; DWARF5: DW_AT_GNU_dwo_name{{.*}}test.dwo
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; DWARF5: DW_AT_GNU_addr_base{{.*}}0x00000008
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; DWARF5: .debug_addr contents:
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; DWARF5-NEXT: 0x00000000: Addr Section: length = 0x0000000c, version = 0x0005, addr_size = 0x04, seg_size = 0x00
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; DWARF5-NEXT: Addrs: [
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; DWARF5-NEXT: 0x00000000
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; DWARF5-NEXT: 0x00000010
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; DWARF5-NEXT: ]
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; ModuleID = './test.c'
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source_filename = "./test.c"
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target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
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target triple = "i386-unknown-linux-gnu"
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; Function Attrs: noinline nounwind optnone
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define void @foo() #0 !dbg !8 {
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entry:
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ret void, !dbg !12
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}
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; Function Attrs: noinline nounwind optnone
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define void @bar() #0 !dbg !13 {
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entry:
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ret void, !dbg !14
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}
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attributes #0 = { noinline nounwind optnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!llvm.ident = !{!7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.1", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "test.c", directory: "/tmp")
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!2 = !{}
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!3 = !{i32 1, !"NumRegisterParameters", i32 0}
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!4 = !{i32 2, !"Dwarf Version", i32 5}
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!5 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = !{i32 1, !"wchar_size", i32 4}
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!7 = !{!"clang version 6.0.1"}
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!8 = distinct !DISubprogram(name: "foo", scope: !9, file: !9, line: 1, type: !10, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, unit: !0)
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!9 = !DIFile(filename: "./test.c", directory: "/tmp")
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!10 = !DISubroutineType(types: !11)
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!11 = !{null}
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!12 = !DILocation(line: 2, column: 3, scope: !8)
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!13 = distinct !DISubprogram(name: "bar", scope: !9, file: !9, line: 5, type: !10, isLocal: false, isDefinition: true, scopeLine: 5, isOptimized: false, unit: !0)
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!14 = !DILocation(line: 6, column: 3, scope: !13)
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