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f435a2459a
In cases where the debugger load time is a worthwhile tradeoff (or less costly - such as loading from a DWP instead of a variety of DWOs (possibly over a high-latency/distributed filesystem)) against object file size, it can be reasonable to disable pubnames and corresponding gdb-index creation in the linker. A backend-flag version of this was implemented for NVPTX in D44385/r327994 - which was fine for NVPTX which wouldn't mix-and-match CUs. Now that it's going to be a user-facing option (likely powered by "-gno-pubnames", the same as GCC) it should be encoded in the DICompileUnit so it can vary per-CU. After this, likely the NVPTX support should be migrated to the metadata & the previous flag implementation should be removed. Reviewers: aprantl Differential Revision: https://reviews.llvm.org/D50213 llvm-svn: 339939
55 lines
2.2 KiB
LLVM
55 lines
2.2 KiB
LLVM
; RUN: llc -mtriple=x86_64-pc-linux-gnu -generate-type-units -filetype=obj < %s | llvm-dwarfdump -v - | FileCheck %s
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; Generated from:
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; namespace ns {
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; struct foo {
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; };
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; }
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; struct bar {
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; ns::foo f;
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; };
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; bar b;
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; CHECK-LABEL: .debug_info contents:
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; CHECK: [[CU:0x[0-9a-f]+]]: DW_TAG_compile_unit
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; CHECK: [[BAR:0x[0-9a-f]+]]: DW_TAG_structure_type
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; CHECK-LABEL: .debug_gnu_pubnames contents:
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; CHECK-NEXT: length = {{.*}} version = 0x0002 unit_offset = 0x00000000 unit_size = {{.*}}
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; CHECK-NEXT: Offset Linkage Kind Name
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; CHECK-NEXT: [[CU]] EXTERNAL TYPE "ns"
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; CHECK-NEXT: {{.*}} EXTERNAL VARIABLE "b"
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; CHECK-LABEL: debug_gnu_pubtypes contents:
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; CHECK-NEXT: length = {{.*}} version = 0x0002 unit_offset = 0x00000000 unit_size = {{.*}}
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; CHECK-NEXT: Offset Linkage Kind Name
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; CHECK-NEXT: [[BAR]] EXTERNAL TYPE "bar"
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; CHECK-NEXT: [[CU]] EXTERNAL TYPE "ns::foo"
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%struct.bar = type { %"struct.ns::foo" }
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%"struct.ns::foo" = type { i8 }
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@b = global %struct.bar zeroinitializer, align 1, !dbg !0
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!11, !12}
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!llvm.ident = !{!13}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "b", scope: !2, file: !3, line: 8, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 5.0.0 (trunk 293904) (llvm/trunk 293908)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: GNU)
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!3 = !DIFile(filename: "type.cpp", directory: "/tmp/dbginfo")
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!4 = !{}
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!5 = !{!0}
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!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "bar", file: !3, line: 5, size: 8, elements: !7, identifier: "_ZTS3bar")
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!7 = !{!8}
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!8 = !DIDerivedType(tag: DW_TAG_member, name: "f", scope: !6, file: !3, line: 6, baseType: !9, size: 8)
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!9 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "foo", scope: !10, file: !3, line: 2, size: 8, elements: !4, identifier: "_ZTSN2ns3fooE")
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!10 = !DINamespace(name: "ns", scope: null)
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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 = !{!"clang version 5.0.0 (trunk 293904) (llvm/trunk 293908)"}
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