3f61e4eae6
Tag types like stucts or enums didn't have a declaration attached to
them. The source locations are present in the IPI stream in
`LF_UDT_MOD_SRC_LINE` records:
```
0x101F | LF_UDT_MOD_SRC_LINE [size = 18, hash = 0x1C63]
udt = 0x1058, mod = 3, file = 1, line = 0
0x2789 | LF_UDT_MOD_SRC_LINE [size = 18, hash = 0x1E5A]
udt = 0x1253, mod = 35, file = 93, line = 17069
```
The file is an ID in the string table `/names`:
```
ID | String
1 | '\<unknown>'
12 | 'D:\a\_work\1\s\src\ExternalAPIs\WindowsSDKInc\c\Include\10.0.22621.0\um\wingdi.h'
93 | 'D:\a\_work\1\s\src\ExternalAPIs\WindowsSDKInc\c\Include\10.0.22621.0\um\winnt.h'
```
Here, we're not interested in `mod`. This would indicate which module
contributed the UDT.
I was looking at Rustc's PDB and found that it uses `<unknown>` for some
types, so I added a check for that.
This makes two DIA PDB shell tests to work with the native PDB plugin.
---------
Co-authored-by: Michael Buch <michaelbuch12@gmail.com>
57 lines
2.6 KiB
LLVM
57 lines
2.6 KiB
LLVM
; Test that the declaration for UDTs won't be "<unknown>" or "\<unknown>".
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; Rustc sets the location of some builtin types to this string.
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; REQUIRES: system-windows
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; RUN: %build --compiler=clang-cl --nodefaultlib -o %t.exe -- %s
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; RUN: lldb-test symbols %t.exe | FileCheck %s
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; there shouldn't be a declaration (would be between size and compiler_type)
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; CHECK: Type{{.*}} , name = "Foo", size = 1, compiler_type = {{.*}} struct Foo {
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; This is edited output from clang simulates rustc behavior (see !17)
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; Source:
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; struct Foo {};
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;
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; int main() { Foo f; }
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; ModuleID = 'main.cpp'
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source_filename = "main.cpp"
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target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.44.35207"
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%struct.Foo = type { i8 }
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; Function Attrs: mustprogress noinline norecurse nounwind optnone uwtable
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define dso_local noundef i32 @main() #0 !dbg !9 {
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%1 = alloca %struct.Foo, align 1
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#dbg_declare(ptr %1, !14, !DIExpression(), !16)
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ret i32 0, !dbg !16
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}
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attributes #0 = { mustprogress noinline norecurse nounwind optnone uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3, !4, !5, !6, !7}
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!llvm.ident = !{!8}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 20.1.6", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "main.cpp", directory: "F:\\Dev\\rust-dbg-test", checksumkind: CSK_MD5, checksum: "b8942260dadf9ec35328889f05afb954")
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!2 = !{i32 2, !"CodeView", i32 1}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 2}
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!5 = !{i32 8, !"PIC Level", i32 2}
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!6 = !{i32 7, !"uwtable", i32 2}
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!7 = !{i32 1, !"MaxTLSAlign", i32 65536}
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!8 = !{!"clang version 20.1.6"}
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!9 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 3, type: !10, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !13)
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!10 = !DISubroutineType(types: !11)
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!11 = !{!12}
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!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!13 = !{}
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!14 = !DILocalVariable(name: "f", scope: !9, file: !1, line: 3, type: !15)
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!15 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !17, line: 1, size: 8, flags: DIFlagTypePassByValue, elements: !13, identifier: ".?AUFoo@@")
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!16 = !DILocation(line: 3, scope: !9)
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; This is how rustc emits some types
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!17 = !DIFile(filename: "<unknown>", directory: "")
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