mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-21 02:29:22 +00:00
0181303087
and update everything accordingly. This can be used to conditionalize the amount of output in the backend based on the amount of debug requested/metadata emission scheme by a front end (e.g. clang). Paired with a commit to clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202332 91177308-0d34-0410-b5e6-96231b3b80d8
879 lines
31 KiB
C++
879 lines
31 KiB
C++
//===--- llvm/Analysis/DebugInfo.h - Debug Information Helpers --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a bunch of datatypes that are useful for creating and
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// walking debug info in LLVM IR form. They essentially provide wrappers around
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// the information in the global variables that's needed when constructing the
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// DWARF information.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_H
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#define LLVM_DEBUGINFO_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/SmallPtrSet.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/IR/Metadata.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/Dwarf.h"
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namespace llvm {
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class BasicBlock;
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class Constant;
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class Function;
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class GlobalVariable;
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class Module;
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class Type;
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class Value;
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class DbgDeclareInst;
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class DbgValueInst;
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class Instruction;
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class MDNode;
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class MDString;
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class NamedMDNode;
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class LLVMContext;
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class raw_ostream;
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class DIFile;
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class DISubprogram;
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class DILexicalBlock;
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class DILexicalBlockFile;
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class DIVariable;
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class DIType;
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class DIScope;
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class DIObjCProperty;
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/// Maps from type identifier to the actual MDNode.
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typedef DenseMap<const MDString *, MDNode *> DITypeIdentifierMap;
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/// DIDescriptor - A thin wraper around MDNode to access encoded debug info.
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/// This should not be stored in a container, because the underlying MDNode
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/// may change in certain situations.
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class DIDescriptor {
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// Befriends DIRef so DIRef can befriend the protected member
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// function: getFieldAs<DIRef>.
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template <typename T> friend class DIRef;
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public:
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enum {
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FlagPrivate = 1 << 0,
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FlagProtected = 1 << 1,
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FlagFwdDecl = 1 << 2,
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FlagAppleBlock = 1 << 3,
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FlagBlockByrefStruct = 1 << 4,
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FlagVirtual = 1 << 5,
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FlagArtificial = 1 << 6,
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FlagExplicit = 1 << 7,
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FlagPrototyped = 1 << 8,
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FlagObjcClassComplete = 1 << 9,
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FlagObjectPointer = 1 << 10,
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FlagVector = 1 << 11,
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FlagStaticMember = 1 << 12,
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FlagIndirectVariable = 1 << 13,
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FlagLValueReference = 1 << 14,
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FlagRValueReference = 1 << 15
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};
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protected:
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const MDNode *DbgNode;
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StringRef getStringField(unsigned Elt) const;
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unsigned getUnsignedField(unsigned Elt) const {
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return (unsigned)getUInt64Field(Elt);
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}
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uint64_t getUInt64Field(unsigned Elt) const;
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int64_t getInt64Field(unsigned Elt) const;
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DIDescriptor getDescriptorField(unsigned Elt) const;
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template <typename DescTy> DescTy getFieldAs(unsigned Elt) const {
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return DescTy(getDescriptorField(Elt));
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}
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GlobalVariable *getGlobalVariableField(unsigned Elt) const;
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Constant *getConstantField(unsigned Elt) const;
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Function *getFunctionField(unsigned Elt) const;
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void replaceFunctionField(unsigned Elt, Function *F);
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public:
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explicit DIDescriptor(const MDNode *N = 0) : DbgNode(N) {}
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bool Verify() const;
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operator MDNode *() const { return const_cast<MDNode *>(DbgNode); }
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MDNode *operator->() const { return const_cast<MDNode *>(DbgNode); }
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// An explicit operator bool so that we can do testing of DI values
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// easily.
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// FIXME: This operator bool isn't actually protecting anything at the
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// moment due to the conversion operator above making DIDescriptor nodes
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// implicitly convertable to bool.
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LLVM_EXPLICIT operator bool() const { return DbgNode != 0; }
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bool operator==(DIDescriptor Other) const { return DbgNode == Other.DbgNode; }
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bool operator!=(DIDescriptor Other) const { return !operator==(Other); }
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uint16_t getTag() const {
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return getUnsignedField(0) & ~LLVMDebugVersionMask;
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}
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bool isDerivedType() const;
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bool isCompositeType() const;
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bool isBasicType() const;
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bool isVariable() const;
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bool isSubprogram() const;
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bool isGlobalVariable() const;
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bool isScope() const;
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bool isFile() const;
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bool isCompileUnit() const;
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bool isNameSpace() const;
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bool isLexicalBlockFile() const;
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bool isLexicalBlock() const;
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bool isSubrange() const;
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bool isEnumerator() const;
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bool isType() const;
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bool isUnspecifiedParameter() const;
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bool isTemplateTypeParameter() const;
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bool isTemplateValueParameter() const;
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bool isObjCProperty() const;
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bool isImportedEntity() const;
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/// print - print descriptor.
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void print(raw_ostream &OS) const;
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/// dump - print descriptor to dbgs() with a newline.
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void dump() const;
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};
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/// DISubrange - This is used to represent ranges, for array bounds.
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class DISubrange : public DIDescriptor {
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friend class DIDescriptor;
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void printInternal(raw_ostream &OS) const;
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public:
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explicit DISubrange(const MDNode *N = 0) : DIDescriptor(N) {}
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int64_t getLo() const { return getInt64Field(1); }
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int64_t getCount() const { return getInt64Field(2); }
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bool Verify() const;
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};
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/// DIArray - This descriptor holds an array of descriptors.
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class DIArray : public DIDescriptor {
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public:
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explicit DIArray(const MDNode *N = 0) : DIDescriptor(N) {}
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unsigned getNumElements() const;
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DIDescriptor getElement(unsigned Idx) const {
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return getDescriptorField(Idx);
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}
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};
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/// DIEnumerator - A wrapper for an enumerator (e.g. X and Y in 'enum {X,Y}').
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/// FIXME: it seems strange that this doesn't have either a reference to the
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/// type/precision or a file/line pair for location info.
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class DIEnumerator : public DIDescriptor {
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friend class DIDescriptor;
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void printInternal(raw_ostream &OS) const;
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public:
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explicit DIEnumerator(const MDNode *N = 0) : DIDescriptor(N) {}
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StringRef getName() const { return getStringField(1); }
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int64_t getEnumValue() const { return getInt64Field(2); }
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bool Verify() const;
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};
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template <typename T> class DIRef;
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typedef DIRef<DIScope> DIScopeRef;
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typedef DIRef<DIType> DITypeRef;
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/// DIScope - A base class for various scopes.
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class DIScope : public DIDescriptor {
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protected:
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friend class DIDescriptor;
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void printInternal(raw_ostream &OS) const;
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public:
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explicit DIScope(const MDNode *N = 0) : DIDescriptor(N) {}
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/// Gets the parent scope for this scope node or returns a
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/// default constructed scope.
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DIScopeRef getContext() const;
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/// If the scope node has a name, return that, else return an empty string.
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StringRef getName() const;
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StringRef getFilename() const;
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StringRef getDirectory() const;
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/// Generate a reference to this DIScope. Uses the type identifier instead
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/// of the actual MDNode if possible, to help type uniquing.
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DIScopeRef getRef() const;
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};
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/// Represents reference to a DIDescriptor, abstracts over direct and
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/// identifier-based metadata references.
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template <typename T> class DIRef {
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template <typename DescTy>
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friend DescTy DIDescriptor::getFieldAs(unsigned Elt) const;
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friend DIScopeRef DIScope::getContext() const;
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friend DIScopeRef DIScope::getRef() const;
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/// Val can be either a MDNode or a MDString, in the latter,
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/// MDString specifies the type identifier.
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const Value *Val;
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explicit DIRef(const Value *V);
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public:
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T resolve(const DITypeIdentifierMap &Map) const;
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StringRef getName() const;
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operator Value *() const { return const_cast<Value *>(Val); }
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};
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template <typename T>
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T DIRef<T>::resolve(const DITypeIdentifierMap &Map) const {
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if (!Val)
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return T();
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if (const MDNode *MD = dyn_cast<MDNode>(Val))
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return T(MD);
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const MDString *MS = cast<MDString>(Val);
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// Find the corresponding MDNode.
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DITypeIdentifierMap::const_iterator Iter = Map.find(MS);
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assert(Iter != Map.end() && "Identifier not in the type map?");
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assert(DIDescriptor(Iter->second).isType() &&
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"MDNode in DITypeIdentifierMap should be a DIType.");
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return T(Iter->second);
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}
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template <typename T> StringRef DIRef<T>::getName() const {
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if (!Val)
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return StringRef();
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if (const MDNode *MD = dyn_cast<MDNode>(Val))
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return T(MD).getName();
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const MDString *MS = cast<MDString>(Val);
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return MS->getString();
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}
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/// Specialize getFieldAs to handle fields that are references to DIScopes.
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template <> DIScopeRef DIDescriptor::getFieldAs<DIScopeRef>(unsigned Elt) const;
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/// Specialize DIRef constructor for DIScopeRef.
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template <> DIRef<DIScope>::DIRef(const Value *V);
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/// Specialize getFieldAs to handle fields that are references to DITypes.
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template <> DITypeRef DIDescriptor::getFieldAs<DITypeRef>(unsigned Elt) const;
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/// Specialize DIRef constructor for DITypeRef.
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template <> DIRef<DIType>::DIRef(const Value *V);
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/// DIType - This is a wrapper for a type.
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/// FIXME: Types should be factored much better so that CV qualifiers and
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/// others do not require a huge and empty descriptor full of zeros.
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class DIType : public DIScope {
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protected:
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friend class DIDescriptor;
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void printInternal(raw_ostream &OS) const;
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public:
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explicit DIType(const MDNode *N = 0) : DIScope(N) {}
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/// Verify - Verify that a type descriptor is well formed.
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bool Verify() const;
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DIScopeRef getContext() const { return getFieldAs<DIScopeRef>(2); }
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StringRef getName() const { return getStringField(3); }
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unsigned getLineNumber() const { return getUnsignedField(4); }
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uint64_t getSizeInBits() const { return getUInt64Field(5); }
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uint64_t getAlignInBits() const { return getUInt64Field(6); }
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// FIXME: Offset is only used for DW_TAG_member nodes. Making every type
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// carry this is just plain insane.
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uint64_t getOffsetInBits() const { return getUInt64Field(7); }
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unsigned getFlags() const { return getUnsignedField(8); }
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bool isPrivate() const { return (getFlags() & FlagPrivate) != 0; }
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bool isProtected() const { return (getFlags() & FlagProtected) != 0; }
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bool isForwardDecl() const { return (getFlags() & FlagFwdDecl) != 0; }
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// isAppleBlock - Return true if this is the Apple Blocks extension.
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bool isAppleBlockExtension() const {
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return (getFlags() & FlagAppleBlock) != 0;
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}
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bool isBlockByrefStruct() const {
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return (getFlags() & FlagBlockByrefStruct) != 0;
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}
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bool isVirtual() const { return (getFlags() & FlagVirtual) != 0; }
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bool isArtificial() const { return (getFlags() & FlagArtificial) != 0; }
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bool isObjectPointer() const { return (getFlags() & FlagObjectPointer) != 0; }
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bool isObjcClassComplete() const {
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return (getFlags() & FlagObjcClassComplete) != 0;
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}
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bool isVector() const { return (getFlags() & FlagVector) != 0; }
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bool isStaticMember() const { return (getFlags() & FlagStaticMember) != 0; }
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bool isLValueReference() const {
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return (getFlags() & FlagLValueReference) != 0;
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}
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bool isRValueReference() const {
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return (getFlags() & FlagRValueReference) != 0;
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}
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bool isValid() const { return DbgNode && isType(); }
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/// replaceAllUsesWith - Replace all uses of debug info referenced by
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/// this descriptor.
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void replaceAllUsesWith(DIDescriptor &D);
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void replaceAllUsesWith(MDNode *D);
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};
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/// DIBasicType - A basic type, like 'int' or 'float'.
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class DIBasicType : public DIType {
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public:
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explicit DIBasicType(const MDNode *N = 0) : DIType(N) {}
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unsigned getEncoding() const { return getUnsignedField(9); }
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/// Verify - Verify that a basic type descriptor is well formed.
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bool Verify() const;
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};
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/// DIDerivedType - A simple derived type, like a const qualified type,
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/// a typedef, a pointer or reference, et cetera. Or, a data member of
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/// a class/struct/union.
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class DIDerivedType : public DIType {
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friend class DIDescriptor;
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void printInternal(raw_ostream &OS) const;
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public:
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explicit DIDerivedType(const MDNode *N = 0) : DIType(N) {}
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DITypeRef getTypeDerivedFrom() const { return getFieldAs<DITypeRef>(9); }
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/// getObjCProperty - Return property node, if this ivar is
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/// associated with one.
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MDNode *getObjCProperty() const;
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DITypeRef getClassType() const {
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assert(getTag() == dwarf::DW_TAG_ptr_to_member_type);
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return getFieldAs<DITypeRef>(10);
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}
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Constant *getConstant() const {
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assert((getTag() == dwarf::DW_TAG_member) && isStaticMember());
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return getConstantField(10);
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}
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/// Verify - Verify that a derived type descriptor is well formed.
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bool Verify() const;
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};
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/// DICompositeType - This descriptor holds a type that can refer to multiple
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/// other types, like a function or struct.
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/// DICompositeType is derived from DIDerivedType because some
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/// composite types (such as enums) can be derived from basic types
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// FIXME: Make this derive from DIType directly & just store the
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// base type in a single DIType field.
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class DICompositeType : public DIDerivedType {
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friend class DIDescriptor;
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void printInternal(raw_ostream &OS) const;
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public:
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explicit DICompositeType(const MDNode *N = 0) : DIDerivedType(N) {}
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DIArray getTypeArray() const { return getFieldAs<DIArray>(10); }
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void setTypeArray(DIArray Elements, DIArray TParams = DIArray());
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unsigned getRunTimeLang() const { return getUnsignedField(11); }
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DITypeRef getContainingType() const { return getFieldAs<DITypeRef>(12); }
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void setContainingType(DICompositeType ContainingType);
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DIArray getTemplateParams() const { return getFieldAs<DIArray>(13); }
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MDString *getIdentifier() const;
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/// Verify - Verify that a composite type descriptor is well formed.
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bool Verify() const;
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};
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/// DIFile - This is a wrapper for a file.
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class DIFile : public DIScope {
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friend class DIDescriptor;
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public:
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explicit DIFile(const MDNode *N = 0) : DIScope(N) {}
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MDNode *getFileNode() const;
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bool Verify() const;
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};
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/// DICompileUnit - A wrapper for a compile unit.
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class DICompileUnit : public DIScope {
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friend class DIDescriptor;
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void printInternal(raw_ostream &OS) const;
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public:
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explicit DICompileUnit(const MDNode *N = 0) : DIScope(N) {}
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unsigned getLanguage() const { return getUnsignedField(2); }
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StringRef getProducer() const { return getStringField(3); }
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bool isOptimized() const { return getUnsignedField(4) != 0; }
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StringRef getFlags() const { return getStringField(5); }
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unsigned getRunTimeVersion() const { return getUnsignedField(6); }
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DIArray getEnumTypes() const;
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DIArray getRetainedTypes() const;
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DIArray getSubprograms() const;
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DIArray getGlobalVariables() const;
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DIArray getImportedEntities() const;
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StringRef getSplitDebugFilename() const { return getStringField(12); }
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unsigned getEmissionKind() const { return getUnsignedField(13); }
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/// Verify - Verify that a compile unit is well formed.
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bool Verify() const;
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};
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/// DISubprogram - This is a wrapper for a subprogram (e.g. a function).
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class DISubprogram : public DIScope {
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friend class DIDescriptor;
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void printInternal(raw_ostream &OS) const;
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public:
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explicit DISubprogram(const MDNode *N = 0) : DIScope(N) {}
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DIScopeRef getContext() const { return getFieldAs<DIScopeRef>(2); }
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StringRef getName() const { return getStringField(3); }
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StringRef getDisplayName() const { return getStringField(4); }
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StringRef getLinkageName() const { return getStringField(5); }
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unsigned getLineNumber() const { return getUnsignedField(6); }
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DICompositeType getType() const { return getFieldAs<DICompositeType>(7); }
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/// isLocalToUnit - Return true if this subprogram is local to the current
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/// compile unit, like 'static' in C.
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unsigned isLocalToUnit() const { return getUnsignedField(8); }
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unsigned isDefinition() const { return getUnsignedField(9); }
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unsigned getVirtuality() const { return getUnsignedField(10); }
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unsigned getVirtualIndex() const { return getUnsignedField(11); }
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DITypeRef getContainingType() const { return getFieldAs<DITypeRef>(12); }
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unsigned getFlags() const { return getUnsignedField(13); }
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unsigned isArtificial() const {
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return (getUnsignedField(13) & FlagArtificial) != 0;
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}
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/// isPrivate - Return true if this subprogram has "private"
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/// access specifier.
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bool isPrivate() const { return (getUnsignedField(13) & FlagPrivate) != 0; }
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/// isProtected - Return true if this subprogram has "protected"
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/// access specifier.
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bool isProtected() const {
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return (getUnsignedField(13) & FlagProtected) != 0;
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}
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/// isExplicit - Return true if this subprogram is marked as explicit.
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bool isExplicit() const { return (getUnsignedField(13) & FlagExplicit) != 0; }
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/// isPrototyped - Return true if this subprogram is prototyped.
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bool isPrototyped() const {
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return (getUnsignedField(13) & FlagPrototyped) != 0;
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}
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|
|
|
/// Return true if this subprogram is a C++11 reference-qualified
|
|
/// non-static member function (void foo() &).
|
|
unsigned isLValueReference() const {
|
|
return (getUnsignedField(13) & FlagLValueReference) != 0;
|
|
}
|
|
|
|
/// Return true if this subprogram is a C++11
|
|
/// rvalue-reference-qualified non-static member function
|
|
/// (void foo() &&).
|
|
unsigned isRValueReference() const {
|
|
return (getUnsignedField(13) & FlagRValueReference) != 0;
|
|
}
|
|
|
|
unsigned isOptimized() const;
|
|
|
|
/// Verify - Verify that a subprogram descriptor is well formed.
|
|
bool Verify() const;
|
|
|
|
/// describes - Return true if this subprogram provides debugging
|
|
/// information for the function F.
|
|
bool describes(const Function *F);
|
|
|
|
Function *getFunction() const { return getFunctionField(15); }
|
|
void replaceFunction(Function *F) { replaceFunctionField(15, F); }
|
|
DIArray getTemplateParams() const { return getFieldAs<DIArray>(16); }
|
|
DISubprogram getFunctionDeclaration() const {
|
|
return getFieldAs<DISubprogram>(17);
|
|
}
|
|
MDNode *getVariablesNodes() const;
|
|
DIArray getVariables() const;
|
|
|
|
/// getScopeLineNumber - Get the beginning of the scope of the
|
|
/// function, not necessarily where the name of the program
|
|
/// starts.
|
|
unsigned getScopeLineNumber() const { return getUnsignedField(19); }
|
|
};
|
|
|
|
/// DILexicalBlock - This is a wrapper for a lexical block.
|
|
class DILexicalBlock : public DIScope {
|
|
public:
|
|
explicit DILexicalBlock(const MDNode *N = 0) : DIScope(N) {}
|
|
DIScope getContext() const { return getFieldAs<DIScope>(2); }
|
|
unsigned getLineNumber() const { return getUnsignedField(3); }
|
|
unsigned getColumnNumber() const { return getUnsignedField(4); }
|
|
bool Verify() const;
|
|
};
|
|
|
|
/// DILexicalBlockFile - This is a wrapper for a lexical block with
|
|
/// a filename change.
|
|
class DILexicalBlockFile : public DIScope {
|
|
public:
|
|
explicit DILexicalBlockFile(const MDNode *N = 0) : DIScope(N) {}
|
|
DIScope getContext() const {
|
|
if (getScope().isSubprogram())
|
|
return getScope();
|
|
return getScope().getContext();
|
|
}
|
|
unsigned getLineNumber() const { return getScope().getLineNumber(); }
|
|
unsigned getColumnNumber() const { return getScope().getColumnNumber(); }
|
|
DILexicalBlock getScope() const { return getFieldAs<DILexicalBlock>(2); }
|
|
bool Verify() const;
|
|
};
|
|
|
|
/// DINameSpace - A wrapper for a C++ style name space.
|
|
class DINameSpace : public DIScope {
|
|
friend class DIDescriptor;
|
|
void printInternal(raw_ostream &OS) const;
|
|
|
|
public:
|
|
explicit DINameSpace(const MDNode *N = 0) : DIScope(N) {}
|
|
DIScope getContext() const { return getFieldAs<DIScope>(2); }
|
|
StringRef getName() const { return getStringField(3); }
|
|
unsigned getLineNumber() const { return getUnsignedField(4); }
|
|
bool Verify() const;
|
|
};
|
|
|
|
/// DIUnspecifiedParameter - This is a wrapper for unspecified parameters.
|
|
class DIUnspecifiedParameter : public DIDescriptor {
|
|
public:
|
|
explicit DIUnspecifiedParameter(const MDNode *N = 0) : DIDescriptor(N) {}
|
|
bool Verify() const;
|
|
};
|
|
|
|
/// DITemplateTypeParameter - This is a wrapper for template type parameter.
|
|
class DITemplateTypeParameter : public DIDescriptor {
|
|
public:
|
|
explicit DITemplateTypeParameter(const MDNode *N = 0) : DIDescriptor(N) {}
|
|
|
|
DIScopeRef getContext() const { return getFieldAs<DIScopeRef>(1); }
|
|
StringRef getName() const { return getStringField(2); }
|
|
DITypeRef getType() const { return getFieldAs<DITypeRef>(3); }
|
|
StringRef getFilename() const { return getFieldAs<DIFile>(4).getFilename(); }
|
|
StringRef getDirectory() const {
|
|
return getFieldAs<DIFile>(4).getDirectory();
|
|
}
|
|
unsigned getLineNumber() const { return getUnsignedField(5); }
|
|
unsigned getColumnNumber() const { return getUnsignedField(6); }
|
|
bool Verify() const;
|
|
};
|
|
|
|
/// DITemplateValueParameter - This is a wrapper for template value parameter.
|
|
class DITemplateValueParameter : public DIDescriptor {
|
|
public:
|
|
explicit DITemplateValueParameter(const MDNode *N = 0) : DIDescriptor(N) {}
|
|
|
|
DIScopeRef getContext() const { return getFieldAs<DIScopeRef>(1); }
|
|
StringRef getName() const { return getStringField(2); }
|
|
DITypeRef getType() const { return getFieldAs<DITypeRef>(3); }
|
|
Value *getValue() const;
|
|
StringRef getFilename() const { return getFieldAs<DIFile>(5).getFilename(); }
|
|
StringRef getDirectory() const {
|
|
return getFieldAs<DIFile>(5).getDirectory();
|
|
}
|
|
unsigned getLineNumber() const { return getUnsignedField(6); }
|
|
unsigned getColumnNumber() const { return getUnsignedField(7); }
|
|
bool Verify() const;
|
|
};
|
|
|
|
/// DIGlobalVariable - This is a wrapper for a global variable.
|
|
class DIGlobalVariable : public DIDescriptor {
|
|
friend class DIDescriptor;
|
|
void printInternal(raw_ostream &OS) const;
|
|
|
|
public:
|
|
explicit DIGlobalVariable(const MDNode *N = 0) : DIDescriptor(N) {}
|
|
|
|
DIScope getContext() const { return getFieldAs<DIScope>(2); }
|
|
StringRef getName() const { return getStringField(3); }
|
|
StringRef getDisplayName() const { return getStringField(4); }
|
|
StringRef getLinkageName() const { return getStringField(5); }
|
|
StringRef getFilename() const { return getFieldAs<DIFile>(6).getFilename(); }
|
|
StringRef getDirectory() const {
|
|
return getFieldAs<DIFile>(6).getDirectory();
|
|
}
|
|
|
|
unsigned getLineNumber() const { return getUnsignedField(7); }
|
|
DIType getType() const { return getFieldAs<DIType>(8); }
|
|
unsigned isLocalToUnit() const { return getUnsignedField(9); }
|
|
unsigned isDefinition() const { return getUnsignedField(10); }
|
|
|
|
GlobalVariable *getGlobal() const { return getGlobalVariableField(11); }
|
|
Constant *getConstant() const { return getConstantField(11); }
|
|
DIDerivedType getStaticDataMemberDeclaration() const {
|
|
return getFieldAs<DIDerivedType>(12);
|
|
}
|
|
|
|
/// Verify - Verify that a global variable descriptor is well formed.
|
|
bool Verify() const;
|
|
};
|
|
|
|
/// DIVariable - This is a wrapper for a variable (e.g. parameter, local,
|
|
/// global etc).
|
|
class DIVariable : public DIDescriptor {
|
|
friend class DIDescriptor;
|
|
void printInternal(raw_ostream &OS) const;
|
|
|
|
public:
|
|
explicit DIVariable(const MDNode *N = 0) : DIDescriptor(N) {}
|
|
|
|
DIScope getContext() const { return getFieldAs<DIScope>(1); }
|
|
StringRef getName() const { return getStringField(2); }
|
|
DIFile getFile() const { return getFieldAs<DIFile>(3); }
|
|
unsigned getLineNumber() const { return (getUnsignedField(4) << 8) >> 8; }
|
|
unsigned getArgNumber() const {
|
|
unsigned L = getUnsignedField(4);
|
|
return L >> 24;
|
|
}
|
|
DIType getType() const { return getFieldAs<DIType>(5); }
|
|
|
|
/// isArtificial - Return true if this variable is marked as "artificial".
|
|
bool isArtificial() const {
|
|
return (getUnsignedField(6) & FlagArtificial) != 0;
|
|
}
|
|
|
|
bool isObjectPointer() const {
|
|
return (getUnsignedField(6) & FlagObjectPointer) != 0;
|
|
}
|
|
|
|
/// \brief Return true if this variable is represented as a pointer.
|
|
bool isIndirect() const {
|
|
return (getUnsignedField(6) & FlagIndirectVariable) != 0;
|
|
}
|
|
|
|
/// getInlinedAt - If this variable is inlined then return inline location.
|
|
MDNode *getInlinedAt() const;
|
|
|
|
/// Verify - Verify that a variable descriptor is well formed.
|
|
bool Verify() const;
|
|
|
|
/// HasComplexAddr - Return true if the variable has a complex address.
|
|
bool hasComplexAddress() const { return getNumAddrElements() > 0; }
|
|
|
|
unsigned getNumAddrElements() const;
|
|
|
|
uint64_t getAddrElement(unsigned Idx) const {
|
|
return getUInt64Field(Idx + 8);
|
|
}
|
|
|
|
/// isBlockByrefVariable - Return true if the variable was declared as
|
|
/// a "__block" variable (Apple Blocks).
|
|
bool isBlockByrefVariable() const { return getType().isBlockByrefStruct(); }
|
|
|
|
/// isInlinedFnArgument - Return true if this variable provides debugging
|
|
/// information for an inlined function arguments.
|
|
bool isInlinedFnArgument(const Function *CurFn);
|
|
|
|
void printExtendedName(raw_ostream &OS) const;
|
|
};
|
|
|
|
/// DILocation - This object holds location information. This object
|
|
/// is not associated with any DWARF tag.
|
|
class DILocation : public DIDescriptor {
|
|
public:
|
|
explicit DILocation(const MDNode *N) : DIDescriptor(N) {}
|
|
|
|
unsigned getLineNumber() const { return getUnsignedField(0); }
|
|
unsigned getColumnNumber() const { return getUnsignedField(1); }
|
|
DIScope getScope() const { return getFieldAs<DIScope>(2); }
|
|
DILocation getOrigLocation() const { return getFieldAs<DILocation>(3); }
|
|
StringRef getFilename() const { return getScope().getFilename(); }
|
|
StringRef getDirectory() const { return getScope().getDirectory(); }
|
|
bool Verify() const;
|
|
};
|
|
|
|
class DIObjCProperty : public DIDescriptor {
|
|
friend class DIDescriptor;
|
|
void printInternal(raw_ostream &OS) const;
|
|
|
|
public:
|
|
explicit DIObjCProperty(const MDNode *N) : DIDescriptor(N) {}
|
|
|
|
StringRef getObjCPropertyName() const { return getStringField(1); }
|
|
DIFile getFile() const { return getFieldAs<DIFile>(2); }
|
|
unsigned getLineNumber() const { return getUnsignedField(3); }
|
|
|
|
StringRef getObjCPropertyGetterName() const { return getStringField(4); }
|
|
StringRef getObjCPropertySetterName() const { return getStringField(5); }
|
|
bool isReadOnlyObjCProperty() const {
|
|
return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_readonly) != 0;
|
|
}
|
|
bool isReadWriteObjCProperty() const {
|
|
return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_readwrite) != 0;
|
|
}
|
|
bool isAssignObjCProperty() const {
|
|
return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_assign) != 0;
|
|
}
|
|
bool isRetainObjCProperty() const {
|
|
return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_retain) != 0;
|
|
}
|
|
bool isCopyObjCProperty() const {
|
|
return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_copy) != 0;
|
|
}
|
|
bool isNonAtomicObjCProperty() const {
|
|
return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_nonatomic) != 0;
|
|
}
|
|
|
|
DIType getType() const { return getFieldAs<DIType>(7); }
|
|
|
|
/// Verify - Verify that a derived type descriptor is well formed.
|
|
bool Verify() const;
|
|
};
|
|
|
|
/// \brief An imported module (C++ using directive or similar).
|
|
class DIImportedEntity : public DIDescriptor {
|
|
friend class DIDescriptor;
|
|
void printInternal(raw_ostream &OS) const;
|
|
|
|
public:
|
|
explicit DIImportedEntity(const MDNode *N) : DIDescriptor(N) {}
|
|
DIScope getContext() const { return getFieldAs<DIScope>(1); }
|
|
DIDescriptor getEntity() const { return getFieldAs<DIDescriptor>(2); }
|
|
unsigned getLineNumber() const { return getUnsignedField(3); }
|
|
StringRef getName() const { return getStringField(4); }
|
|
bool Verify() const;
|
|
};
|
|
|
|
/// getDISubprogram - Find subprogram that is enclosing this scope.
|
|
DISubprogram getDISubprogram(const MDNode *Scope);
|
|
|
|
/// getDICompositeType - Find underlying composite type.
|
|
DICompositeType getDICompositeType(DIType T);
|
|
|
|
/// getOrInsertFnSpecificMDNode - Return a NameMDNode that is suitable
|
|
/// to hold function specific information.
|
|
NamedMDNode *getOrInsertFnSpecificMDNode(Module &M, DISubprogram SP);
|
|
|
|
/// getFnSpecificMDNode - Return a NameMDNode, if available, that is
|
|
/// suitable to hold function specific information.
|
|
NamedMDNode *getFnSpecificMDNode(const Module &M, DISubprogram SP);
|
|
|
|
/// createInlinedVariable - Create a new inlined variable based on current
|
|
/// variable.
|
|
/// @param DV Current Variable.
|
|
/// @param InlinedScope Location at current variable is inlined.
|
|
DIVariable createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
|
|
LLVMContext &VMContext);
|
|
|
|
/// cleanseInlinedVariable - Remove inlined scope from the variable.
|
|
DIVariable cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext);
|
|
|
|
/// Construct DITypeIdentifierMap by going through retained types of each CU.
|
|
DITypeIdentifierMap generateDITypeIdentifierMap(const NamedMDNode *CU_Nodes);
|
|
|
|
/// Strip debug info in the module if it exists.
|
|
/// To do this, we remove all calls to the debugger intrinsics and any named
|
|
/// metadata for debugging. We also remove debug locations for instructions.
|
|
/// Return true if module is modified.
|
|
bool StripDebugInfo(Module &M);
|
|
|
|
/// Return Debug Info Metadata Version by checking module flags.
|
|
unsigned getDebugMetadataVersionFromModule(const Module &M);
|
|
|
|
/// DebugInfoFinder tries to list all debug info MDNodes used in a module. To
|
|
/// list debug info MDNodes used by an instruction, DebugInfoFinder uses
|
|
/// processDeclare, processValue and processLocation to handle DbgDeclareInst,
|
|
/// DbgValueInst and DbgLoc attached to instructions. processModule will go
|
|
/// through all DICompileUnits in llvm.dbg.cu and list debug info MDNodes
|
|
/// used by the CUs.
|
|
class DebugInfoFinder {
|
|
public:
|
|
DebugInfoFinder() : TypeMapInitialized(false) {}
|
|
|
|
/// processModule - Process entire module and collect debug info
|
|
/// anchors.
|
|
void processModule(const Module &M);
|
|
|
|
/// processDeclare - Process DbgDeclareInst.
|
|
void processDeclare(const Module &M, const DbgDeclareInst *DDI);
|
|
/// Process DbgValueInst.
|
|
void processValue(const Module &M, const DbgValueInst *DVI);
|
|
/// processLocation - Process DILocation.
|
|
void processLocation(const Module &M, DILocation Loc);
|
|
|
|
/// Clear all lists.
|
|
void reset();
|
|
|
|
private:
|
|
/// Initialize TypeIdentifierMap.
|
|
void InitializeTypeMap(const Module &M);
|
|
|
|
/// processType - Process DIType.
|
|
void processType(DIType DT);
|
|
|
|
/// processLexicalBlock - Process DILexicalBlock.
|
|
void processLexicalBlock(DILexicalBlock LB);
|
|
|
|
/// processSubprogram - Process DISubprogram.
|
|
void processSubprogram(DISubprogram SP);
|
|
|
|
void processScope(DIScope Scope);
|
|
|
|
/// addCompileUnit - Add compile unit into CUs.
|
|
bool addCompileUnit(DICompileUnit CU);
|
|
|
|
/// addGlobalVariable - Add global variable into GVs.
|
|
bool addGlobalVariable(DIGlobalVariable DIG);
|
|
|
|
// addSubprogram - Add subprogram into SPs.
|
|
bool addSubprogram(DISubprogram SP);
|
|
|
|
/// addType - Add type into Tys.
|
|
bool addType(DIType DT);
|
|
|
|
bool addScope(DIScope Scope);
|
|
|
|
public:
|
|
typedef SmallVectorImpl<MDNode *>::const_iterator iterator;
|
|
iterator compile_unit_begin() const { return CUs.begin(); }
|
|
iterator compile_unit_end() const { return CUs.end(); }
|
|
iterator subprogram_begin() const { return SPs.begin(); }
|
|
iterator subprogram_end() const { return SPs.end(); }
|
|
iterator global_variable_begin() const { return GVs.begin(); }
|
|
iterator global_variable_end() const { return GVs.end(); }
|
|
iterator type_begin() const { return TYs.begin(); }
|
|
iterator type_end() const { return TYs.end(); }
|
|
iterator scope_begin() const { return Scopes.begin(); }
|
|
iterator scope_end() const { return Scopes.end(); }
|
|
|
|
unsigned compile_unit_count() const { return CUs.size(); }
|
|
unsigned global_variable_count() const { return GVs.size(); }
|
|
unsigned subprogram_count() const { return SPs.size(); }
|
|
unsigned type_count() const { return TYs.size(); }
|
|
unsigned scope_count() const { return Scopes.size(); }
|
|
|
|
private:
|
|
SmallVector<MDNode *, 8> CUs; // Compile Units
|
|
SmallVector<MDNode *, 8> SPs; // Subprograms
|
|
SmallVector<MDNode *, 8> GVs; // Global Variables;
|
|
SmallVector<MDNode *, 8> TYs; // Types
|
|
SmallVector<MDNode *, 8> Scopes; // Scopes
|
|
SmallPtrSet<MDNode *, 64> NodesSeen;
|
|
DITypeIdentifierMap TypeIdentifierMap;
|
|
/// Specify if TypeIdentifierMap is initialized.
|
|
bool TypeMapInitialized;
|
|
};
|
|
} // end namespace llvm
|
|
|
|
#endif
|