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mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-03-25 16:30:05 +00:00

According to the dwarf standard pubnames and pubtypes for languages

like C++ should be the fully qualified names for the type.

Add a routine that does a language specific context walk to build
up the qualified name and use it when we add types/names to the
tables. Expand the gnu pubnames testcase as it's the most complex
to make sure that qualified types are also being added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192865 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2013-10-17 02:06:06 +00:00
parent 0739140b05
commit 9198657e1e
4 changed files with 128 additions and 55 deletions

@ -911,8 +911,10 @@ void CompileUnit::addAccelType(StringRef Name, std::pair<DIE *, unsigned> Die) {
}
/// addGlobalName - Add a new global name to the compile unit.
void CompileUnit::addGlobalName(StringRef Name, DIE *Die) {
GlobalNames[Name] = Die;
void CompileUnit::addGlobalName(StringRef Name, DIE *Die, DIScope Context) {
std::string ContextString = getParentContextString(Context);
std::string FullName = ContextString + Name.str();
GlobalNames[FullName] = Die;
}
/// addGlobalType - Add a new global type to the compile unit.
@ -922,8 +924,51 @@ void CompileUnit::addGlobalType(DIType Ty) {
if (!Ty.getName().empty() && !Ty.isForwardDecl() &&
(!Context || Context.isCompileUnit() || Context.isFile() ||
Context.isNameSpace()))
if (DIEEntry *Entry = getDIEEntry(Ty))
GlobalTypes[Ty.getName()] = Entry->getEntry();
if (DIEEntry *Entry = getDIEEntry(Ty)) {
std::string ContextString = getParentContextString(Context);
std::string FullName = ContextString + Ty.getName().str();
GlobalTypes[FullName] = Entry->getEntry();
}
}
/// getParentContextString - Walks the metadata parent chain in a language
/// specific manner (using the compile unit language) and returns
/// it as a string. This is done at the metadata level because DIEs may
/// not currently have been added to the parent context and walking the
/// DIEs looking for names is more expensive than walking the metadata.
std::string CompileUnit::getParentContextString(DIScope Context) const {
if (!Context)
return "";
// FIXME: Decide whether to implement this for non-C++ languages.
if (getLanguage() != dwarf::DW_LANG_C_plus_plus)
return "";
std::string CS = "";
SmallVector<DIScope, 1> Parents;
while (!Context.isCompileUnit()) {
Parents.push_back(Context);
if (Context.getContext())
Context = resolve(Context.getContext());
else
// Structure, etc types will have a NULL context if they're at the top
// level.
break;
}
// Reverse iterate over our list to go from the outermost construct to the
// innermost.
for (SmallVectorImpl<DIScope>::reverse_iterator I = Parents.rbegin(),
E = Parents.rend();
I != E; ++I) {
DIScope Ctx = *I;
StringRef Name = Ctx.getName();
if (Name != "") {
CS += Name;
CS += "::";
}
}
return CS;
}
/// addPubTypes - Add subprogram argument types for pubtypes section.
@ -1289,7 +1334,7 @@ DIE *CompileUnit::getOrCreateNameSpace(DINameSpace NS) {
if (!NS.getName().empty()) {
addString(NDie, dwarf::DW_AT_name, NS.getName());
addAccelNamespace(NS.getName(), NDie);
addGlobalName(NS.getName(), NDie);
addGlobalName(NS.getName(), NDie, NS.getContext());
} else
addAccelNamespace("(anonymous namespace)", NDie);
addSourceLine(NDie, NS);
@ -1571,8 +1616,8 @@ void CompileUnit::createGlobalVariableDIE(const MDNode *N) {
}
if (!GV.isLocalToUnit())
addGlobalName(GV.getName(),
VariableSpecDIE ? VariableSpecDIE : VariableDIE);
addGlobalName(GV.getName(), VariableSpecDIE ? VariableSpecDIE : VariableDIE,
GV.getContext());
}
/// constructSubrangeDIE - Construct subrange DIE from DISubrange.

@ -123,9 +123,13 @@ public:
///
bool hasContent() const { return !CUDie->getChildren().empty(); }
/// getParentContextString - Get a string containing the language specific
/// context for a global name.
std::string getParentContextString(DIScope Context) const;
/// addGlobalName - Add a new global entity to the compile unit.
///
void addGlobalName(StringRef Name, DIE *Die);
void addGlobalName(StringRef Name, DIE *Die, DIScope Context);
/// addGlobalType - Add a new global type to the compile unit.
///

@ -839,7 +839,7 @@ void DwarfDebug::constructSubprogramDIE(CompileUnit *TheCU, const MDNode *N) {
SPMap[N] = TheCU;
// Expose as a global name.
TheCU->addGlobalName(SP.getName(), SubprogramDie);
TheCU->addGlobalName(SP.getName(), SubprogramDie, resolve(SP.getContext()));
}
void DwarfDebug::constructImportedEntityDIE(CompileUnit *TheCU,

@ -31,11 +31,14 @@
; global_variable.member_function();
; }
; int global_namespace_variable = 1;
; struct D {
; int A;
; } d;
; }
; ASM: .section .debug_gnu_pubnames
; ASM: .byte 32 # Kind: VARIABLE, EXTERNAL
; ASM-NEXT: .asciz "global_namespace_variable" # External Name
; ASM-NEXT: .asciz "global_variable" # External Name
; ASM: .section .debug_gnu_pubtypes
; ASM: .byte 16 # Kind: TYPE, EXTERNAL
@ -74,6 +77,12 @@
; CHECK: [[GLOB_NS_VAR_DECL:[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_name {{.*}} "global_namespace_variable"
; CHECK: [[D:[0-9a-f]+]]: DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name {{.*}} "D"
; CHECK: [[D_VAR_DECL:[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_name {{.*}} "d"
; CHECK: [[GLOB_NS_FUNC:[0-9a-f]+]]: DW_TAG_subprogram
; CHECK-NEXT: DW_AT_MIPS_linkage_name
; CHECK-NEXT: DW_AT_name {{.*}} "global_namespace_function"
@ -81,6 +90,9 @@
; CHECK: [[GLOB_NS_VAR:[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_specification {{.*}}[[GLOB_NS_VAR_DECL]]
; CHECK: [[D_VAR:[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_specification {{.*}}[[D_VAR_DECL]]
; CHECK: [[MEM_FUNC:[0-9a-f]+]]: DW_TAG_subprogram
; CHECK-NEXT: DW_AT_specification {{.*}}[[MEM_FUNC_DECL]]
@ -92,19 +104,21 @@
; CHECK-NEXT: DW_AT_name {{.*}} "global_function"
; CHECK-LABEL: .debug_gnu_pubnames contents:
; CHECK-NEXT: Length: 203
; CHECK-NEXT: Length: 231
; CHECK-NEXT: Version: 2
; CHECK-NEXT: Offset in .debug_info: 0
; CHECK-NEXT: Size: 327
; CHECK-NEXT: Size: 381
; CHECK-NEXT: Offset Linkage Kind Name
; CHECK-DAG: [[NS]] EXTERNAL TYPE "ns"
; CHECK-DAG: [[GLOB_NS_VAR]] EXTERNAL VARIABLE "global_namespace_variable"
; CHECK-DAG: [[GLOB_NS_FUNC]] EXTERNAL FUNCTION "global_namespace_function"
; CHECK-DAG: [[STATIC_MEM_VAR]] EXTERNAL VARIABLE "static_member_variable"
; CHECK-DAG: [[STATIC_MEM_FUNC]] EXTERNAL FUNCTION "static_member_function"
; CHECK-DAG: [[GLOB_VAR]] EXTERNAL VARIABLE "global_variable"
; CHECK-DAG: [[GLOBAL_FUNC]] EXTERNAL FUNCTION "global_function"
; CHECK-DAG: [[MEM_FUNC]] EXTERNAL FUNCTION "member_function"
; CHECK-DAG: [[NS]] EXTERNAL TYPE "ns"
; CHECK-DAG: [[MEM_FUNC]] EXTERNAL FUNCTION "C::member_function"
; CHECK-DAG: [[GLOB_VAR]] EXTERNAL VARIABLE "global_variable"
; CHECK-DAG: [[GLOB_NS_VAR]] EXTERNAL VARIABLE "ns::global_namespace_variable"
; CHECK-DAG: [[GLOB_NS_FUNC]] EXTERNAL FUNCTION "ns::global_namespace_function"
; CHECK-DAG: [[D_VAR]] EXTERNAL VARIABLE "ns::d"
; CHECK-DAG: [[STATIC_MEM_VAR]] EXTERNAL VARIABLE "C::static_member_variable"
; CHECK-DAG: [[STATIC_MEM_FUNC]] EXTERNAL FUNCTION "C::static_member_function"
; CHECK-LABEL: debug_gnu_pubtypes contents:
; CHECK-NEXT: Length:
@ -113,23 +127,26 @@
; CHECK-NEXT: Size:
; CHECK-NEXT: Offset Linkage Kind Name
; CHECK-DAG: [[C]] EXTERNAL TYPE "C"
; CHECK-DAG: [[D]] EXTERNAL TYPE "ns::D"
; CHECK-DAG: [[INT]] STATIC TYPE "int"
%struct.C = type { i8 }
%"struct.ns::D" = type { i32 }
@_ZN1C22static_member_variableE = global i32 0, align 4
@global_variable = global %struct.C zeroinitializer, align 1
@_ZN2ns25global_namespace_variableE = global i32 1, align 4
@_ZN2ns1dE = global %"struct.ns::D" zeroinitializer, align 4
; Function Attrs: nounwind uwtable
define void @_ZN1C15member_functionEv(%struct.C* %this) #0 align 2 {
entry:
%this.addr = alloca %struct.C*, align 8
store %struct.C* %this, %struct.C** %this.addr, align 8
call void @llvm.dbg.declare(metadata !{%struct.C** %this.addr}, metadata !31), !dbg !33
call void @llvm.dbg.declare(metadata !{%struct.C** %this.addr}, metadata !36), !dbg !38
%this1 = load %struct.C** %this.addr
store i32 0, i32* @_ZN1C22static_member_variableE, align 4, !dbg !34
ret void, !dbg !34
store i32 0, i32* @_ZN1C22static_member_variableE, align 4, !dbg !39
ret void, !dbg !39
}
; Function Attrs: nounwind readnone
@ -138,64 +155,71 @@ declare void @llvm.dbg.declare(metadata, metadata) #1
; Function Attrs: nounwind uwtable
define i32 @_ZN1C22static_member_functionEv() #0 align 2 {
entry:
%0 = load i32* @_ZN1C22static_member_variableE, align 4, !dbg !35
ret i32 %0, !dbg !35
%0 = load i32* @_ZN1C22static_member_variableE, align 4, !dbg !40
ret i32 %0, !dbg !40
}
; Function Attrs: nounwind uwtable
define i32 @_Z15global_functionv() #0 {
entry:
ret i32 -1, !dbg !36
ret i32 -1, !dbg !41
}
; Function Attrs: nounwind uwtable
define void @_ZN2ns25global_namespace_functionEv() #0 {
entry:
call void @_ZN1C15member_functionEv(%struct.C* @global_variable), !dbg !37
ret void, !dbg !37
call void @_ZN1C15member_functionEv(%struct.C* @global_variable), !dbg !42
ret void, !dbg !42
}
attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!30}
!llvm.module.flags = !{!34}
!llvm.ident = !{!35}
!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 191222) (llvm/trunk 191239)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !17, metadata !26, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/pubnames.cpp] [DW_LANG_C_plus_plus]
!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 192862) (llvm/trunk 192861)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !21, metadata !29, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/pubnames.cpp] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"pubnames.cpp", metadata !"/usr/local/google/home/echristo/tmp"}
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!5 = metadata !{metadata !6, metadata !8, metadata !13}
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!6 = metadata !{i32 786445, metadata !1, metadata !"_ZTS1C", metadata !"static_member_variable", i32 4, i64 0, i64 0, i64 0, i32 4096, metadata !7, null} ; [ DW_TAG_member ] [static_member_variable] [line 4, size 0, align 0, offset 0] [static] [from int]
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!8 = metadata !{i32 786478, metadata !1, metadata !4, metadata !"member_function", metadata !"member_function", metadata !"_ZN1C15member_functionEv", i32 2, metadata !9, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !12, i32 2} ; [ DW_TAG_subprogram ] [line 2] [member_function]
!8 = metadata !{i32 786478, metadata !1, metadata !"_ZTS1C", metadata !"member_function", metadata !"member_function", metadata !"_ZN1C15member_functionEv", i32 2, metadata !9, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !12, i32 2} ; [ DW_TAG_subprogram ] [line 2] [member_function]
!9 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !10, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!10 = metadata !{null, metadata !11}
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!11 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS1C"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1C]
!12 = metadata !{i32 786468}
!13 = metadata !{i32 786478, metadata !1, metadata !4, metadata !"static_member_function", metadata !"static_member_function", metadata !"_ZN1C22static_member_functionEv", i32 3, metadata !14, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !16, i32 3} ; [ DW_TAG_subprogram ] [line 3] [static_member_function]
!13 = metadata !{i32 786478, metadata !1, metadata !"_ZTS1C", metadata !"static_member_function", metadata !"static_member_function", metadata !"_ZN1C22static_member_functionEv", i32 3, metadata !14, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !16, i32 3} ; [ DW_TAG_subprogram ] [line 3] [static_member_function]
!14 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !15, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!19 = metadata !{i32 786478, metadata !1, null, metadata !"static_member_function", metadata !"static_member_function", metadata !"_ZN1C22static_member_functionEv", i32 11, metadata !14, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @_ZN1C22static_member_functionEv, null, metadata !13, metadata !2, i32 11} ; [ DW_TAG_subprogram ] [line 11] [def] [static_member_function]
!20 = metadata !{i32 786478, metadata !1, metadata !21, metadata !"global_function", metadata !"global_function", metadata !"_Z15global_functionv", i32 15, metadata !14, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @_Z15global_functionv, null, null, metadata !2, i32 15} ; [ DW_TAG_subprogram ] [line 15] [def] [global_function]
!21 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/pubnames.cpp]
!22 = metadata !{i32 786478, metadata !1, metadata !23, metadata !"global_namespace_function", metadata !"global_namespace_function", metadata !"_ZN2ns25global_namespace_functionEv", i32 18, metadata !24, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_ZN2ns25global_namespace_functionEv, null, null, metadata !2, i32 18} ; [ DW_TAG_subprogram ] [line 18] [def] [global_namespace_function]
!23 = metadata !{i32 786489, metadata !1, null, metadata !"ns", i32 17} ; [ DW_TAG_namespace ] [ns] [line 17]
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!28 = metadata !{i32 786484, i32 0, null, metadata !"global_variable", metadata !"global_variable", metadata !"", metadata !21, i32 13, metadata !4, i32 0, i32 1, %struct.C* @global_variable, null} ; [ DW_TAG_variable ] [global_variable] [line 13] [def]
!29 = metadata !{i32 786484, i32 0, metadata !23, metadata !"global_namespace_variable", metadata !"global_namespace_variable", metadata !"_ZN2ns25global_namespace_variableE", metadata !21, i32 19, metadata !7, i32 0, i32 1, i32* @_ZN2ns25global_namespace_variableE, null} ; [ DW_TAG_variable ] [global_namespace_variable] [line 19] [def]
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!33 = metadata !{i32 0, i32 0, metadata !18, null}
!34 = metadata !{i32 9, i32 0, metadata !18, null}
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!17 = metadata !{i32 786451, metadata !1, metadata !18, metadata !"D", i32 21, i64 32, i64 32, i32 0, i32 0, null, metadata !19, i32 0, null, null, metadata !"_ZTSN2ns1DE"} ; [ DW_TAG_structure_type ] [D] [line 21, size 32, align 32, offset 0] [def] [from ]
!18 = metadata !{i32 786489, metadata !1, null, metadata !"ns", i32 17} ; [ DW_TAG_namespace ] [ns] [line 17]
!19 = metadata !{metadata !20}
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!23 = metadata !{i32 786478, metadata !1, metadata !"_ZTS1C", metadata !"static_member_function", metadata !"static_member_function", metadata !"_ZN1C22static_member_functionEv", i32 11, metadata !14, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @_ZN1C22static_member_functionEv, null, metadata !13, metadata !2, i32 11} ; [ DW_TAG_subprogram ] [line 11] [def] [static_member_function]
!24 = metadata !{i32 786478, metadata !1, metadata !25, metadata !"global_function", metadata !"global_function", metadata !"_Z15global_functionv", i32 15, metadata !14, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @_Z15global_functionv, null, null, metadata !2, i32 15} ; [ DW_TAG_subprogram ] [line 15] [def] [global_function]
!25 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/pubnames.cpp]
!26 = metadata !{i32 786478, metadata !1, metadata !18, metadata !"global_namespace_function", metadata !"global_namespace_function", metadata !"_ZN2ns25global_namespace_functionEv", i32 18, metadata !27, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_ZN2ns25global_namespace_functionEv, null, null, metadata !2, i32 18} ; [ DW_TAG_subprogram ] [line 18] [def] [global_namespace_function]
!27 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !28, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!35 = metadata !{metadata !"clang version 3.4 (trunk 192862) (llvm/trunk 192861)"}
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