#include "llvm/CodeGen/MachineDebugInfo.h"
#include "llvm/Constants.h"
+#include "llvm/CodeGen/MachineLocation.h"
#include "llvm/DerivedTypes.h"
#include "llvm/GlobalVariable.h"
#include "llvm/Intrinsics.h"
#include <iostream>
using namespace llvm;
+using namespace llvm::dwarf;
// Handle the Pass registration stuff necessary to use TargetData's.
namespace {
std::vector<const Type*> FieldTypes;
FieldTypes.push_back(Type::UIntTy);
- FieldTypes.push_back(PointerType::get(Type::SByteTy));
+ FieldTypes.push_back(Type::UIntTy);
// Get the GlobalVariable root.
GlobalVariable *UseRoot = M.getGlobalVariable(RootName,
return Result;
}
-/// getStringValue - Turn an LLVM constant pointer that eventually points to a
-/// global into a string value. Return an empty string if we can't do it.
-///
-static const std::string getStringValue(Value *V, unsigned Offset = 0) {
- if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) {
- if (GV->hasInitializer() && isa<ConstantArray>(GV->getInitializer())) {
- ConstantArray *Init = cast<ConstantArray>(GV->getInitializer());
- if (Init->isString()) {
- std::string Result = Init->getAsString();
- if (Offset < Result.size()) {
- // If we are pointing INTO The string, erase the beginning...
- Result.erase(Result.begin(), Result.begin()+Offset);
-
- // Take off the null terminator, and any string fragments after it.
- std::string::size_type NullPos = Result.find_first_of((char)0);
- if (NullPos != std::string::npos)
- Result.erase(Result.begin()+NullPos, Result.end());
- return Result;
- }
- }
- }
- } else if (Constant *C = dyn_cast<Constant>(V)) {
- if (GlobalValue *GV = dyn_cast<GlobalValue>(C))
- return getStringValue(GV, Offset);
- else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
- if (CE->getOpcode() == Instruction::GetElementPtr) {
- // Turn a gep into the specified offset.
- if (CE->getNumOperands() == 3 &&
- cast<Constant>(CE->getOperand(1))->isNullValue() &&
- isa<ConstantInt>(CE->getOperand(2))) {
- return getStringValue(CE->getOperand(0),
- Offset+cast<ConstantInt>(CE->getOperand(2))->getRawValue());
- }
- }
- }
- }
- return "";
-}
-
/// isStringValue - Return true if the given value can be coerced to a string.
///
static bool isStringValue(Value *V) {
}
virtual void Apply(std::string &Field) {
Constant *C = CI->getOperand(I++);
- Field = getStringValue(C);
+ Field = C->getStringValue();
}
virtual void Apply(DebugInfoDesc *&Field) {
Constant *C = CI->getOperand(I++);
virtual void Apply(std::vector<DebugInfoDesc *> &Field) {
Constant *C = CI->getOperand(I++);
GlobalVariable *GV = getGlobalVariable(C);
- ConstantArray *CA = cast<ConstantArray>(GV->getInitializer());
Field.resize(0);
- for (unsigned i = 0, N = CA->getNumOperands(); i < N; ++i) {
- GlobalVariable *GVE = getGlobalVariable(CA->getOperand(i));
- DebugInfoDesc *DE = DR.Deserialize(GVE);
- Field.push_back(DE);
+ // Have to be able to deal with the empty array case (zero initializer)
+ if (!GV->hasInitializer()) return;
+ if (ConstantArray *CA = dyn_cast<ConstantArray>(GV->getInitializer())) {
+ for (unsigned i = 0, N = CA->getNumOperands(); i < N; ++i) {
+ GlobalVariable *GVE = getGlobalVariable(CA->getOperand(i));
+ DebugInfoDesc *DE = DR.Deserialize(GVE);
+ Field.push_back(DE);
+ }
}
}
};
Elements.push_back(ConstantUInt::get(Type::UIntTy, Field));
}
virtual void Apply(int64_t &Field) {
- Elements.push_back(ConstantSInt::get(Type::IntTy, Field));
+ Elements.push_back(ConstantSInt::get(Type::LongTy, Field));
}
virtual void Apply(uint64_t &Field) {
- Elements.push_back(ConstantUInt::get(Type::UIntTy, Field));
+ Elements.push_back(ConstantUInt::get(Type::ULongTy, Field));
}
virtual void Apply(bool &Field) {
Elements.push_back(ConstantBool::get(Field));
}
virtual void Apply(std::string &Field) {
- Elements.push_back(SR.getString(Field));
+ Elements.push_back(SR.getString(Field));
}
virtual void Apply(DebugInfoDesc *&Field) {
GlobalVariable *GV = NULL;
- // If non-NULL the convert to global.
+ // If non-NULL then convert to global.
if (Field) GV = SR.Serialize(Field);
// FIXME - At some point should use specific type.
GlobalValue::InternalLinkage,
CA, "llvm.dbg.array",
SR.getModule());
+ CAGV->setSection("llvm.metadata");
Constant *CAE = ConstantExpr::getCast(CAGV, EmptyTy);
Elements.push_back(CAE);
}
Fields.push_back(Type::UIntTy);
}
virtual void Apply(int64_t &Field) {
- Fields.push_back(Type::IntTy);
+ Fields.push_back(Type::LongTy);
}
virtual void Apply(uint64_t &Field) {
- Fields.push_back(Type::UIntTy);
+ Fields.push_back(Type::ULongTy);
}
virtual void Apply(bool &Field) {
Fields.push_back(Type::BoolTy);
}
virtual void Apply(std::string &Field) {
Constant *C = CI->getOperand(I++);
- IsValid = IsValid && isStringValue(C);
+ IsValid = IsValid && (!C || isStringValue(C));
}
virtual void Apply(DebugInfoDesc *&Field) {
// FIXME - Prepare the correct descriptor.
//===----------------------------------------------------------------------===//
-/// TagFromGlobal - Returns the Tag number from a debug info descriptor
-/// GlobalVariable.
+/// TagFromGlobal - Returns the tag number from a debug info descriptor
+/// GlobalVariable. Return DIIValid if operand is not an unsigned int.
unsigned DebugInfoDesc::TagFromGlobal(GlobalVariable *GV) {
ConstantUInt *C = getUIntOperand(GV, 0);
- return C ? (unsigned)C->getValue() : (unsigned)DIInvalid;
+ return C ? ((unsigned)C->getValue() & tag_mask) : (unsigned)DW_TAG_invalid;
+}
+
+/// VersionFromGlobal - Returns the version number from a debug info
+/// descriptor GlobalVariable. Return DIIValid if operand is not an unsigned
+/// int.
+unsigned DebugInfoDesc::VersionFromGlobal(GlobalVariable *GV) {
+ ConstantUInt *C = getUIntOperand(GV, 0);
+ return C ? ((unsigned)C->getValue() >> version_shift) :
+ (unsigned)DW_TAG_invalid;
}
/// DescFactory - Create an instance of debug info descriptor based on Tag.
/// Return NULL if not a recognized Tag.
DebugInfoDesc *DebugInfoDesc::DescFactory(unsigned Tag) {
switch (Tag) {
- case DI_TAG_anchor: return new AnchorDesc();
- case DI_TAG_compile_unit: return new CompileUnitDesc();
- case DI_TAG_global_variable: return new GlobalVariableDesc();
- case DI_TAG_subprogram: return new SubprogramDesc();
- case DI_TAG_basictype: return new BasicTypeDesc();
- case DI_TAG_typedef:
- case DI_TAG_pointer:
- case DI_TAG_reference:
- case DI_TAG_const:
- case DI_TAG_volatile:
- case DI_TAG_restrict: return new DerivedTypeDesc(Tag);
- case DI_TAG_array:
- case DI_TAG_struct:
- case DI_TAG_union:
- case DI_TAG_enum: return new CompositeTypeDesc(Tag);
- case DI_TAG_subrange: return new SubrangeDesc();
+ case DW_TAG_anchor: return new AnchorDesc();
+ case DW_TAG_compile_unit: return new CompileUnitDesc();
+ case DW_TAG_variable: return new GlobalVariableDesc();
+ case DW_TAG_subprogram: return new SubprogramDesc();
+ case DW_TAG_lexical_block: return new BlockDesc();
+ case DW_TAG_base_type: return new BasicTypeDesc();
+ case DW_TAG_typedef:
+ case DW_TAG_pointer_type:
+ case DW_TAG_reference_type:
+ case DW_TAG_const_type:
+ case DW_TAG_volatile_type:
+ case DW_TAG_restrict_type:
+ case DW_TAG_member: return new DerivedTypeDesc(Tag);
+ case DW_TAG_array_type:
+ case DW_TAG_structure_type:
+ case DW_TAG_union_type:
+ case DW_TAG_enumeration_type: return new CompositeTypeDesc(Tag);
+ case DW_TAG_subrange_type: return new SubrangeDesc();
+ case DW_TAG_enumerator: return new EnumeratorDesc();
+ case DW_TAG_return_variable:
+ case DW_TAG_arg_variable:
+ case DW_TAG_auto_variable: return new VariableDesc(Tag);
default: break;
}
return NULL;
//===----------------------------------------------------------------------===//
+AnchorDesc::AnchorDesc()
+: DebugInfoDesc(DW_TAG_anchor)
+, AnchorTag(0)
+{}
+AnchorDesc::AnchorDesc(AnchoredDesc *D)
+: DebugInfoDesc(DW_TAG_anchor)
+, AnchorTag(D->getTag())
+{}
+
+// Implement isa/cast/dyncast.
+bool AnchorDesc::classof(const DebugInfoDesc *D) {
+ return D->getTag() == DW_TAG_anchor;
+}
+
/// getLinkage - get linkage appropriate for this type of descriptor.
///
GlobalValue::LinkageTypes AnchorDesc::getLinkage() const {
void AnchorDesc::ApplyToFields(DIVisitor *Visitor) {
DebugInfoDesc::ApplyToFields(Visitor);
- Visitor->Apply(Name);
+ Visitor->Apply(AnchorTag);
}
-/// getDescString - Return a string used to compose global names and labels.
-///
+/// getDescString - Return a string used to compose global names and labels. A
+/// A global variable name needs to be defined for each debug descriptor that is
+/// anchored. NOTE: that each global variable named here also needs to be added
+/// to the list of names left external in the internalizer.
+/// ExternalNames.insert("llvm.dbg.compile_units");
+/// ExternalNames.insert("llvm.dbg.global_variables");
+/// ExternalNames.insert("llvm.dbg.subprograms");
const char *AnchorDesc::getDescString() const {
- return Name.c_str();
+ switch (AnchorTag) {
+ case DW_TAG_compile_unit: return CompileUnitDesc::AnchorString;
+ case DW_TAG_variable: return GlobalVariableDesc::AnchorString;
+ case DW_TAG_subprogram: return SubprogramDesc::AnchorString;
+ default: break;
+ }
+
+ assert(0 && "Tag does not have a case for anchor string");
+ return "";
}
/// getTypeString - Return a string used to label this descriptors type.
#ifndef NDEBUG
void AnchorDesc::dump() {
std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
<< "Tag(" << getTag() << "), "
- << "Name(" << Name << ")\n";
+ << "AnchorTag(" << AnchorTag << ")\n";
}
#endif
void AnchoredDesc::ApplyToFields(DIVisitor *Visitor) {
DebugInfoDesc::ApplyToFields(Visitor);
- Visitor->Apply((DebugInfoDesc *&)Anchor);
+ DebugInfoDesc *Tmp = Anchor;
+ Visitor->Apply(Tmp);
+ Anchor = (AnchorDesc*)Tmp;
}
//===----------------------------------------------------------------------===//
CompileUnitDesc::CompileUnitDesc()
-: AnchoredDesc(DI_TAG_compile_unit)
-, DebugVersion(LLVMDebugVersion)
+: AnchoredDesc(DW_TAG_compile_unit)
, Language(0)
, FileName("")
, Directory("")
, Producer("")
{}
-/// DebugVersionFromGlobal - Returns the version number from a compile unit
-/// GlobalVariable.
-unsigned CompileUnitDesc::DebugVersionFromGlobal(GlobalVariable *GV) {
- ConstantUInt *C = getUIntOperand(GV, 2);
- return C ? (unsigned)C->getValue() : (unsigned)DIInvalid;
+// Implement isa/cast/dyncast.
+bool CompileUnitDesc::classof(const DebugInfoDesc *D) {
+ return D->getTag() == DW_TAG_compile_unit;
}
-
+
/// ApplyToFields - Target the visitor to the fields of the CompileUnitDesc.
///
void CompileUnitDesc::ApplyToFields(DIVisitor *Visitor) {
AnchoredDesc::ApplyToFields(Visitor);
- Visitor->Apply(DebugVersion);
Visitor->Apply(Language);
Visitor->Apply(FileName);
Visitor->Apply(Directory);
/// getAnchorString - Return a string used to label this descriptor's anchor.
///
+const char *CompileUnitDesc::AnchorString = "llvm.dbg.compile_units";
const char *CompileUnitDesc::getAnchorString() const {
- return "llvm.dbg.compile_units";
+ return AnchorString;
}
#ifndef NDEBUG
void CompileUnitDesc::dump() {
std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
<< "Tag(" << getTag() << "), "
<< "Anchor(" << getAnchor() << "), "
- << "DebugVersion(" << DebugVersion << "), "
<< "Language(" << Language << "), "
<< "FileName(\"" << FileName << "\"), "
<< "Directory(\"" << Directory << "\"), "
, Context(NULL)
, Name("")
, File(NULL)
+, Line(0)
, Size(0)
+, Align(0)
+, Offset(0)
{}
/// ApplyToFields - Target the visitor to the fields of the TypeDesc.
Visitor->Apply(Context);
Visitor->Apply(Name);
- Visitor->Apply((DebugInfoDesc *&)File);
+ DebugInfoDesc* Tmp = File;
+ Visitor->Apply(Tmp);
+ File = (CompileUnitDesc*)Tmp;
Visitor->Apply(Line);
Visitor->Apply(Size);
+ Visitor->Apply(Align);
+ Visitor->Apply(Offset);
}
/// getDescString - Return a string used to compose global names and labels.
#ifndef NDEBUG
void TypeDesc::dump() {
std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
<< "Tag(" << getTag() << "), "
<< "Context(" << Context << "), "
<< "Name(\"" << Name << "\"), "
<< "File(" << File << "), "
<< "Line(" << Line << "), "
- << "Size(" << Size << ")\n";
+ << "Size(" << Size << "), "
+ << "Align(" << Align << "), "
+ << "Offset(" << Offset << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
BasicTypeDesc::BasicTypeDesc()
-: TypeDesc(DI_TAG_basictype)
+: TypeDesc(DW_TAG_base_type)
, Encoding(0)
{}
+// Implement isa/cast/dyncast.
+bool BasicTypeDesc::classof(const DebugInfoDesc *D) {
+ return D->getTag() == DW_TAG_base_type;
+}
+
/// ApplyToFields - Target the visitor to the fields of the BasicTypeDesc.
///
void BasicTypeDesc::ApplyToFields(DIVisitor *Visitor) {
#ifndef NDEBUG
void BasicTypeDesc::dump() {
std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
<< "Tag(" << getTag() << "), "
<< "Context(" << getContext() << "), "
<< "Name(\"" << getName() << "\"), "
, FromType(NULL)
{}
+// Implement isa/cast/dyncast.
+bool DerivedTypeDesc::classof(const DebugInfoDesc *D) {
+ unsigned T = D->getTag();
+ switch (T) {
+ case DW_TAG_typedef:
+ case DW_TAG_pointer_type:
+ case DW_TAG_reference_type:
+ case DW_TAG_const_type:
+ case DW_TAG_volatile_type:
+ case DW_TAG_restrict_type:
+ case DW_TAG_member:
+ return true;
+ default: break;
+ }
+ return false;
+}
+
/// ApplyToFields - Target the visitor to the fields of the DerivedTypeDesc.
///
void DerivedTypeDesc::ApplyToFields(DIVisitor *Visitor) {
TypeDesc::ApplyToFields(Visitor);
- Visitor->Apply((DebugInfoDesc *&)FromType);
+ DebugInfoDesc* Tmp = FromType;
+ Visitor->Apply(Tmp);
+ FromType = (TypeDesc*)Tmp;
}
/// getDescString - Return a string used to compose global names and labels.
#ifndef NDEBUG
void DerivedTypeDesc::dump() {
std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
<< "Tag(" << getTag() << "), "
<< "Context(" << getContext() << "), "
<< "Name(\"" << getName() << "\"), "
CompositeTypeDesc::CompositeTypeDesc(unsigned T)
: DerivedTypeDesc(T)
+, IsVector(false)
, Elements()
{}
+// Implement isa/cast/dyncast.
+bool CompositeTypeDesc::classof(const DebugInfoDesc *D) {
+ unsigned T = D->getTag();
+ switch (T) {
+ case DW_TAG_array_type:
+ case DW_TAG_structure_type:
+ case DW_TAG_union_type:
+ case DW_TAG_enumeration_type:
+ return true;
+ default: break;
+ }
+ return false;
+}
+
/// ApplyToFields - Target the visitor to the fields of the CompositeTypeDesc.
///
void CompositeTypeDesc::ApplyToFields(DIVisitor *Visitor) {
DerivedTypeDesc::ApplyToFields(Visitor);
+ Visitor->Apply(IsVector);
Visitor->Apply(Elements);
}
#ifndef NDEBUG
void CompositeTypeDesc::dump() {
std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
<< "Tag(" << getTag() << "), "
<< "Context(" << getContext() << "), "
<< "Name(\"" << getName() << "\"), "
//===----------------------------------------------------------------------===//
SubrangeDesc::SubrangeDesc()
-: DebugInfoDesc(DI_TAG_subrange)
+: DebugInfoDesc(DW_TAG_subrange_type)
, Lo(0)
, Hi(0)
{}
+// Implement isa/cast/dyncast.
+bool SubrangeDesc::classof(const DebugInfoDesc *D) {
+ return D->getTag() == DW_TAG_subrange_type;
+}
+
/// ApplyToFields - Target the visitor to the fields of the SubrangeDesc.
///
void SubrangeDesc::ApplyToFields(DIVisitor *Visitor) {
#ifndef NDEBUG
void SubrangeDesc::dump() {
std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
<< "Tag(" << getTag() << "), "
<< "Lo(" << Lo << "), "
<< "Hi(" << Hi << ")\n";
//===----------------------------------------------------------------------===//
+EnumeratorDesc::EnumeratorDesc()
+: DebugInfoDesc(DW_TAG_enumerator)
+, Name("")
+, Value(0)
+{}
+
+// Implement isa/cast/dyncast.
+bool EnumeratorDesc::classof(const DebugInfoDesc *D) {
+ return D->getTag() == DW_TAG_enumerator;
+}
+
+/// ApplyToFields - Target the visitor to the fields of the EnumeratorDesc.
+///
+void EnumeratorDesc::ApplyToFields(DIVisitor *Visitor) {
+ DebugInfoDesc::ApplyToFields(Visitor);
+
+ Visitor->Apply(Name);
+ Visitor->Apply(Value);
+}
+
+/// getDescString - Return a string used to compose global names and labels.
+///
+const char *EnumeratorDesc::getDescString() const {
+ return "llvm.dbg.enumerator";
+}
+
+/// getTypeString - Return a string used to label this descriptor's type.
+///
+const char *EnumeratorDesc::getTypeString() const {
+ return "llvm.dbg.enumerator.type";
+}
+
+#ifndef NDEBUG
+void EnumeratorDesc::dump() {
+ std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
+ << "Tag(" << getTag() << "), "
+ << "Name(" << Name << "), "
+ << "Value(" << Value << ")\n";
+}
+#endif
+
+//===----------------------------------------------------------------------===//
+
+VariableDesc::VariableDesc(unsigned T)
+: DebugInfoDesc(T)
+, Context(NULL)
+, Name("")
+, File(NULL)
+, Line(0)
+, TyDesc(0)
+{}
+
+// Implement isa/cast/dyncast.
+bool VariableDesc::classof(const DebugInfoDesc *D) {
+ unsigned T = D->getTag();
+ switch (T) {
+ case DW_TAG_auto_variable:
+ case DW_TAG_arg_variable:
+ case DW_TAG_return_variable:
+ return true;
+ default: break;
+ }
+ return false;
+}
+
+/// ApplyToFields - Target the visitor to the fields of the VariableDesc.
+///
+void VariableDesc::ApplyToFields(DIVisitor *Visitor) {
+ DebugInfoDesc::ApplyToFields(Visitor);
+
+ Visitor->Apply(Context);
+ Visitor->Apply(Name);
+ DebugInfoDesc* Tmp1 = File;
+ Visitor->Apply(Tmp1);
+ File = (CompileUnitDesc*)Tmp1;
+ Visitor->Apply(Line);
+ DebugInfoDesc* Tmp2 = TyDesc;
+ Visitor->Apply(Tmp2);
+ TyDesc = (TypeDesc*)Tmp2;
+}
+
+/// getDescString - Return a string used to compose global names and labels.
+///
+const char *VariableDesc::getDescString() const {
+ return "llvm.dbg.variable";
+}
+
+/// getTypeString - Return a string used to label this descriptor's type.
+///
+const char *VariableDesc::getTypeString() const {
+ return "llvm.dbg.variable.type";
+}
+
+#ifndef NDEBUG
+void VariableDesc::dump() {
+ std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
+ << "Tag(" << getTag() << "), "
+ << "Context(" << Context << "), "
+ << "Name(\"" << Name << "\"), "
+ << "File(" << File << "), "
+ << "Line(" << Line << "), "
+ << "TyDesc(" << TyDesc << ")\n";
+}
+#endif
+
+//===----------------------------------------------------------------------===//
+
GlobalDesc::GlobalDesc(unsigned T)
: AnchoredDesc(T)
, Context(0)
, Name("")
+, File(NULL)
+, Line(0)
, TyDesc(NULL)
, IsStatic(false)
, IsDefinition(false)
Visitor->Apply(Context);
Visitor->Apply(Name);
- Visitor->Apply((DebugInfoDesc *&)TyDesc);
+ DebugInfoDesc* Tmp1 = File;
+ Visitor->Apply(Tmp1);
+ File = (CompileUnitDesc*)Tmp1;
+ Visitor->Apply(Line);
+ DebugInfoDesc* Tmp2 = TyDesc;
+ Visitor->Apply(Tmp2);
+ TyDesc = (TypeDesc*)Tmp2;
Visitor->Apply(IsStatic);
Visitor->Apply(IsDefinition);
}
//===----------------------------------------------------------------------===//
GlobalVariableDesc::GlobalVariableDesc()
-: GlobalDesc(DI_TAG_global_variable)
+: GlobalDesc(DW_TAG_variable)
, Global(NULL)
{}
+// Implement isa/cast/dyncast.
+bool GlobalVariableDesc::classof(const DebugInfoDesc *D) {
+ return D->getTag() == DW_TAG_variable;
+}
+
/// ApplyToFields - Target the visitor to the fields of the GlobalVariableDesc.
///
void GlobalVariableDesc::ApplyToFields(DIVisitor *Visitor) {
GlobalDesc::ApplyToFields(Visitor);
Visitor->Apply(Global);
- Visitor->Apply(Line);
}
/// getDescString - Return a string used to compose global names and labels.
/// getAnchorString - Return a string used to label this descriptor's anchor.
///
+const char *GlobalVariableDesc::AnchorString = "llvm.dbg.global_variables";
const char *GlobalVariableDesc::getAnchorString() const {
- return "llvm.dbg.global_variables";
+ return AnchorString;
}
#ifndef NDEBUG
void GlobalVariableDesc::dump() {
std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
<< "Tag(" << getTag() << "), "
<< "Anchor(" << getAnchor() << "), "
<< "Name(\"" << getName() << "\"), "
- << "Type(\"" << getTypeDesc() << "\"), "
+ << "File(" << getFile() << "),"
+ << "Line(" << getLine() << "),"
+ << "Type(\"" << getType() << "\"), "
<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << "), "
- << "Global(" << Global << "), "
- << "Line(" << Line << ")\n";
+ << "Global(" << Global << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
SubprogramDesc::SubprogramDesc()
-: GlobalDesc(DI_TAG_subprogram)
+: GlobalDesc(DW_TAG_subprogram)
{}
+// Implement isa/cast/dyncast.
+bool SubprogramDesc::classof(const DebugInfoDesc *D) {
+ return D->getTag() == DW_TAG_subprogram;
+}
+
/// ApplyToFields - Target the visitor to the fields of the
/// SubprogramDesc.
void SubprogramDesc::ApplyToFields(DIVisitor *Visitor) {
/// getAnchorString - Return a string used to label this descriptor's anchor.
///
+const char *SubprogramDesc::AnchorString = "llvm.dbg.subprograms";
const char *SubprogramDesc::getAnchorString() const {
- return "llvm.dbg.subprograms";
+ return AnchorString;
}
#ifndef NDEBUG
void SubprogramDesc::dump() {
std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
<< "Tag(" << getTag() << "), "
<< "Anchor(" << getAnchor() << "), "
<< "Name(\"" << getName() << "\"), "
- << "Type(\"" << getTypeDesc() << "\"), "
+ << "File(" << getFile() << "),"
+ << "Line(" << getLine() << "),"
+ << "Type(\"" << getType() << "\"), "
<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << ")\n";
}
//===----------------------------------------------------------------------===//
+BlockDesc::BlockDesc()
+: DebugInfoDesc(DW_TAG_lexical_block)
+, Context(NULL)
+{}
+
+// Implement isa/cast/dyncast.
+bool BlockDesc::classof(const DebugInfoDesc *D) {
+ return D->getTag() == DW_TAG_lexical_block;
+}
+
+/// ApplyToFields - Target the visitor to the fields of the BlockDesc.
+///
+void BlockDesc::ApplyToFields(DIVisitor *Visitor) {
+ DebugInfoDesc::ApplyToFields(Visitor);
+
+ Visitor->Apply(Context);
+}
+
+/// getDescString - Return a string used to compose global names and labels.
+///
+const char *BlockDesc::getDescString() const {
+ return "llvm.dbg.block";
+}
+
+/// getTypeString - Return a string used to label this descriptors type.
+///
+const char *BlockDesc::getTypeString() const {
+ return "llvm.dbg.block.type";
+}
+
+#ifndef NDEBUG
+void BlockDesc::dump() {
+ std::cerr << getDescString() << " "
+ << "Version(" << getVersion() << "), "
+ << "Tag(" << getTag() << "),"
+ << "Context(" << Context << ")\n";
+}
+#endif
+
+//===----------------------------------------------------------------------===//
+
DebugInfoDesc *DIDeserializer::Deserialize(Value *V) {
return Deserialize(getGlobalVariable(V));
}
// Get the Tag from the global.
unsigned Tag = DebugInfoDesc::TagFromGlobal(GV);
- // Get the debug version if a compile unit.
- if (Tag == DI_TAG_compile_unit) {
- DebugVersion = CompileUnitDesc::DebugVersionFromGlobal(GV);
- }
-
// Create an empty instance of the correct sort.
Slot = DebugInfoDesc::DescFactory(Tag);
- assert(Slot && "Unknown Tag");
- // Deserialize the fields.
- DIDeserializeVisitor DRAM(*this, GV);
- DRAM.ApplyToFields(Slot);
+ // If not a user defined descriptor.
+ if (Slot) {
+ // Deserialize the fields.
+ DIDeserializeVisitor DRAM(*this, GV);
+ DRAM.ApplyToFields(Slot);
+ }
return Slot;
}
Constant *DISerializer::getString(const std::string &String) {
// Check string cache for previous edition.
Constant *&Slot = StringCache[String];
- // return Constant if previously defined.
+ // Return Constant if previously defined.
if (Slot) return Slot;
- // Construct string as an llvm constant.
- Constant *ConstStr = ConstantArray::get(String);
- // Otherwise create and return a new string global.
- GlobalVariable *StrGV = new GlobalVariable(ConstStr->getType(), true,
- GlobalVariable::InternalLinkage,
- ConstStr, "str", M);
- // Convert to generic string pointer.
- Slot = ConstantExpr::getCast(StrGV, getStrPtrType());
+ // If empty string then use a sbyte* null instead.
+ if (String.empty()) {
+ Slot = ConstantPointerNull::get(getStrPtrType());
+ } else {
+ // Construct string as an llvm constant.
+ Constant *ConstStr = ConstantArray::get(String);
+ // Otherwise create and return a new string global.
+ GlobalVariable *StrGV = new GlobalVariable(ConstStr->getType(), true,
+ GlobalVariable::InternalLinkage,
+ ConstStr, "str", M);
+ StrGV->setSection("llvm.metadata");
+ // Convert to generic string pointer.
+ Slot = ConstantExpr::getCast(StrGV, getStrPtrType());
+ }
return Slot;
}
// Create the GlobalVariable early to prevent infinite recursion.
GlobalVariable *GV = new GlobalVariable(Ty, true, DD->getLinkage(),
NULL, DD->getDescString(), M);
+ GV->setSection("llvm.metadata");
// Insert new GlobalVariable in DescGlobals map.
Slot = GV;
//===----------------------------------------------------------------------===//
-/// markVisited - Return true if the GlobalVariable hase been "seen" before.
-/// Mark visited otherwise.
-bool DIVerifier::markVisited(GlobalVariable *GV) {
- // Check if the GlobalVariable is already in the Visited set.
- std::set<GlobalVariable *>::iterator VI = Visited.lower_bound(GV);
-
- // See if GlobalVariable exists.
- bool Exists = VI != Visited.end() && *VI == GV;
-
- // Insert in set.
- if (!Exists) Visited.insert(VI, GV);
-
- return Exists;
-}
-
/// Verify - Return true if the GlobalVariable appears to be a valid
/// serialization of a DebugInfoDesc.
bool DIVerifier::Verify(Value *V) {
- return Verify(getGlobalVariable(V));
+ return !V || Verify(getGlobalVariable(V));
}
bool DIVerifier::Verify(GlobalVariable *GV) {
- // Check if seen before.
- if (markVisited(GV)) return true;
+ // NULLs are valid.
+ if (!GV) return true;
+
+ // Check prior validity.
+ unsigned &ValiditySlot = Validity[GV];
+ // If visited before then use old state.
+ if (ValiditySlot) return ValiditySlot == Valid;
+
+ // Assume validity for the time being (recursion.)
+ ValiditySlot = Valid;
+
+ // Make sure the global is internal or link once (anchor.)
+ if (GV->getLinkage() != GlobalValue::InternalLinkage &&
+ GV->getLinkage() != GlobalValue::LinkOnceLinkage) {
+ ValiditySlot = Invalid;
+ return false;
+ }
+
// Get the Tag
unsigned Tag = DebugInfoDesc::TagFromGlobal(GV);
- if (Tag == DIInvalid) return false;
-
- // If a compile unit we need the debug version.
- if (Tag == DI_TAG_compile_unit) {
- DebugVersion = CompileUnitDesc::DebugVersionFromGlobal(GV);
- if (DebugVersion == DIInvalid) return false;
- }
+
+ // Check for user defined descriptors.
+ if (Tag == DW_TAG_invalid) return true;
// Construct an empty DebugInfoDesc.
DebugInfoDesc *DD = DebugInfoDesc::DescFactory(Tag);
- if (!DD) return false;
+
+ // Allow for user defined descriptors.
+ if (!DD) return true;
// Get the initializer constant.
ConstantStruct *CI = cast<ConstantStruct>(GV->getInitializer());
unsigned N = CI->getNumOperands();
// Get the field count.
- unsigned &Slot = Counts[Tag];
- if (!Slot) {
+ unsigned &CountSlot = Counts[Tag];
+ if (!CountSlot) {
// Check the operand count to the field count
DICountVisitor CTAM;
CTAM.ApplyToFields(DD);
- Slot = CTAM.getCount();
+ CountSlot = CTAM.getCount();
}
- // Field count must equal operand count.
- if (Slot != N) {
+ // Field count must be at most equal operand count.
+ if (CountSlot > N) {
delete DD;
+ ValiditySlot = Invalid;
return false;
}
// Release empty DebugInfoDesc.
delete DD;
- // Return result of field tests.
- return VRAM.isValid();
+ // If fields are not valid.
+ if (!VRAM.isValid()) {
+ ValiditySlot = Invalid;
+ return false;
+ }
+
+ return true;
}
//===----------------------------------------------------------------------===//
+DebugScope::~DebugScope() {
+ for (unsigned i = 0, N = Scopes.size(); i < N; ++i) delete Scopes[i];
+ for (unsigned j = 0, M = Variables.size(); j < M; ++j) delete Variables[j];
+}
+
+//===----------------------------------------------------------------------===//
MachineDebugInfo::MachineDebugInfo()
: DR()
+, VR()
, CompileUnits()
, Directories()
, SourceFiles()
, Lines()
-{
-
-}
+, LabelID(0)
+, ScopeMap()
+, RootScope(NULL)
+, FrameMoves()
+{}
MachineDebugInfo::~MachineDebugInfo() {
}
return false;
}
+/// BeginFunction - Begin gathering function debug information.
+///
+void MachineDebugInfo::BeginFunction(MachineFunction *MF) {
+ // Coming soon.
+}
+
+/// MachineDebugInfo::EndFunction - Discard function debug information.
+///
+void MachineDebugInfo::EndFunction() {
+ // Clean up scope information.
+ if (RootScope) {
+ delete RootScope;
+ ScopeMap.clear();
+ RootScope = NULL;
+ }
+
+ // Clean up frame info.
+ for (unsigned i = 0, N = FrameMoves.size(); i < N; ++i) delete FrameMoves[i];
+ FrameMoves.clear();
+}
+
/// getDescFor - Convert a Value to a debug information descriptor.
///
// FIXME - use new Value type when available.
/// Verify - Verify that a Value is debug information descriptor.
///
bool MachineDebugInfo::Verify(Value *V) {
- DIVerifier VR;
return VR.Verify(V);
}
const std::string &RootName) {
return ::getGlobalVariablesUsing(M, RootName);
}
+
+/// RecordLabel - Records location information and associates it with a
+/// debug label. Returns a unique label ID used to generate a label and
+/// provide correspondence to the source line list.
+unsigned MachineDebugInfo::RecordLabel(unsigned Line, unsigned Column,
+ unsigned Source) {
+ unsigned ID = NextLabelID();
+ Lines.push_back(new SourceLineInfo(Line, Column, Source, ID));
+ return ID;
+}
+
+/// RecordSource - Register a source file with debug info. Returns an source
+/// ID.
+unsigned MachineDebugInfo::RecordSource(const std::string &Directory,
+ const std::string &Source) {
+ unsigned DirectoryID = Directories.insert(Directory);
+ return SourceFiles.insert(SourceFileInfo(DirectoryID, Source));
+}
+unsigned MachineDebugInfo::RecordSource(const CompileUnitDesc *CompileUnit) {
+ return RecordSource(CompileUnit->getDirectory(),
+ CompileUnit->getFileName());
+}
+
+/// RecordRegionStart - Indicate the start of a region.
+///
+unsigned MachineDebugInfo::RecordRegionStart(Value *V) {
+ // FIXME - need to be able to handle split scopes because of bb cloning.
+ DebugInfoDesc *ScopeDesc = DR.Deserialize(V);
+ DebugScope *Scope = getOrCreateScope(ScopeDesc);
+ unsigned ID = NextLabelID();
+ if (!Scope->getStartLabelID()) Scope->setStartLabelID(ID);
+ return ID;
+}
+
+/// RecordRegionEnd - Indicate the end of a region.
+///
+unsigned MachineDebugInfo::RecordRegionEnd(Value *V) {
+ // FIXME - need to be able to handle split scopes because of bb cloning.
+ DebugInfoDesc *ScopeDesc = DR.Deserialize(V);
+ DebugScope *Scope = getOrCreateScope(ScopeDesc);
+ unsigned ID = NextLabelID();
+ Scope->setEndLabelID(ID);
+ return ID;
+}
+
+/// RecordVariable - Indicate the declaration of a local variable.
+///
+void MachineDebugInfo::RecordVariable(Value *V, unsigned FrameIndex) {
+ VariableDesc *VD = cast<VariableDesc>(DR.Deserialize(V));
+ DebugScope *Scope = getOrCreateScope(VD->getContext());
+ DebugVariable *DV = new DebugVariable(VD, FrameIndex);
+ Scope->AddVariable(DV);
+}
+
+/// getOrCreateScope - Returns the scope associated with the given descriptor.
+///
+DebugScope *MachineDebugInfo::getOrCreateScope(DebugInfoDesc *ScopeDesc) {
+ DebugScope *&Slot = ScopeMap[ScopeDesc];
+ if (!Slot) {
+ // FIXME - breaks down when the context is an inlined function.
+ DebugInfoDesc *ParentDesc = NULL;
+ if (BlockDesc *Block = dyn_cast<BlockDesc>(ScopeDesc)) {
+ ParentDesc = Block->getContext();
+ }
+ DebugScope *Parent = ParentDesc ? getOrCreateScope(ParentDesc) : NULL;
+ Slot = new DebugScope(Parent, ScopeDesc);
+ if (Parent) {
+ Parent->AddScope(Slot);
+ } else if (RootScope) {
+ // FIXME - Add inlined function scopes to the root so we can delete
+ // them later. Long term, handle inlined functions properly.
+ RootScope->AddScope(Slot);
+ } else {
+ // First function is top level function.
+ RootScope = Slot;
+ }
+ }
+ return Slot;
+}
+
+
projects / oota-llvm.git / blobdiff