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465 lines
22 KiB
C++
465 lines
22 KiB
C++
//===--- llvm/Analysis/DIBuilder.h - Debug Information Builder --*- 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 DIBuilder that is useful for creating debugging
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// information entries in LLVM IR form.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_DIBUILDER_H
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#define LLVM_ANALYSIS_DIBUILDER_H
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#include "llvm/Support/DataTypes.h"
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#include "llvm/ADT/StringRef.h"
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namespace llvm {
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class BasicBlock;
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class Instruction;
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class Function;
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class Module;
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class Value;
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class LLVMContext;
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class MDNode;
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class StringRef;
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class DIDescriptor;
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class DIFile;
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class DIEnumerator;
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class DIType;
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class DIArray;
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class DIGlobalVariable;
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class DINameSpace;
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class DIVariable;
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class DISubrange;
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class DILexicalBlock;
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class DISubprogram;
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class DITemplateTypeParameter;
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class DITemplateValueParameter;
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class DIBuilder {
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private:
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Module &M;
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LLVMContext & VMContext;
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MDNode *TheCU;
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Function *DeclareFn; // llvm.dbg.declare
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Function *ValueFn; // llvm.dbg.value
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DIBuilder(const DIBuilder &); // DO NOT IMPLEMENT
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void operator=(const DIBuilder &); // DO NOT IMPLEMENT
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public:
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explicit DIBuilder(Module &M);
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const MDNode *getCU() { return TheCU; }
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enum ComplexAddrKind { OpPlus=1, OpDeref };
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/// createCompileUnit - A CompileUnit provides an anchor for all debugging
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/// information generated during this instance of compilation.
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/// @param Lang Source programming language, eg. dwarf::DW_LANG_C99
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/// @param File File name
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/// @param Dir Directory
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/// @param Producer String identify producer of debugging information.
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/// Usuall this is a compiler version string.
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/// @param isOptimized A boolean flag which indicates whether optimization
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/// is ON or not.
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/// @param Flags This string lists command line options. This string is
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/// directly embedded in debug info output which may be used
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/// by a tool analyzing generated debugging information.
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/// @param RV This indicates runtime version for languages like
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/// Objective-C.
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void createCompileUnit(unsigned Lang, StringRef File, StringRef Dir,
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StringRef Producer,
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bool isOptimized, StringRef Flags, unsigned RV);
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/// createFile - Create a file descriptor to hold debugging information
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/// for a file.
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DIFile createFile(StringRef Filename, StringRef Directory);
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/// createEnumerator - Create a single enumerator value.
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DIEnumerator createEnumerator(StringRef Name, uint64_t Val);
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/// createBasicType - Create debugging information entry for a basic
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/// type.
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/// @param Name Type name.
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/// @param SizeInBits Size of the type.
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/// @param AlignInBits Type alignment.
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/// @param Encoding DWARF encoding code, e.g. dwarf::DW_ATE_float.
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DIType createBasicType(StringRef Name, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Encoding);
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/// createQualifiedType - Create debugging information entry for a qualified
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/// type, e.g. 'const int'.
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/// @param Tag Tag identifing type, e.g. dwarf::TAG_volatile_type
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/// @param FromTy Base Type.
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DIType createQualifiedType(unsigned Tag, DIType FromTy);
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/// createPointerType - Create debugging information entry for a pointer.
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/// @param PointeeTy Type pointed by this pointer.
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/// @param SizeInBits Size.
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/// @param AlignInBits Alignment. (optional)
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/// @param Name Pointer type name. (optional)
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DIType createPointerType(DIType PointeeTy, uint64_t SizeInBits,
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uint64_t AlignInBits = 0,
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StringRef Name = StringRef());
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/// createReferenceType - Create debugging information entry for a c++
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/// style reference.
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DIType createReferenceType(DIType RTy);
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/// createTypedef - Create debugging information entry for a typedef.
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/// @param Ty Original type.
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/// @param Name Typedef name.
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/// @param File File where this type is defined.
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/// @param LineNo Line number.
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DIType createTypedef(DIType Ty, StringRef Name, DIFile File,
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unsigned LineNo);
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/// createFriend - Create debugging information entry for a 'friend'.
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DIType createFriend(DIType Ty, DIType FriendTy);
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/// createInheritance - Create debugging information entry to establish
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/// inheritance relationship between two types.
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/// @param Ty Original type.
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/// @param BaseTy Base type. Ty is inherits from base.
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/// @param BaseOffset Base offset.
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/// @param Flags Flags to describe inheritance attribute,
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/// e.g. private
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DIType createInheritance(DIType Ty, DIType BaseTy, uint64_t BaseOffset,
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unsigned Flags);
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/// createMemberType - Create debugging information entry for a member.
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/// @param Name Member name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param OffsetInBits Member offset.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Ty Parent type.
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DIType createMemberType(StringRef Name, DIFile File,
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unsigned LineNo, uint64_t SizeInBits,
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uint64_t AlignInBits, uint64_t OffsetInBits,
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unsigned Flags, DIType Ty);
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/// createClassType - Create debugging information entry for a class.
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/// @param Scope Scope in which this class is defined.
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/// @param Name class name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param OffsetInBits Member offset.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Elements class members.
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/// @param VTableHolder Debug info of the base class that contains vtable
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/// for this type. This is used in
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/// DW_AT_containing_type. See DWARF documentation
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/// for more info.
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/// @param TemplateParms Template type parameters.
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DIType createClassType(DIDescriptor Scope, StringRef Name, DIFile File,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, uint64_t OffsetInBits,
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unsigned Flags, DIType DerivedFrom,
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DIArray Elements, MDNode *VTableHolder = 0,
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MDNode *TemplateParms = 0);
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/// createStructType - Create debugging information entry for a struct.
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/// @param Scope Scope in which this struct is defined.
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/// @param Name Struct name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Elements Struct elements.
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/// @param RunTimeLang Optional parameter, Objective-C runtime version.
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DIType createStructType(DIDescriptor Scope, StringRef Name, DIFile File,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Flags,
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DIArray Elements, unsigned RunTimeLang = 0);
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/// createUnionType - Create debugging information entry for an union.
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/// @param Scope Scope in which this union is defined.
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/// @param Name Union name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Elements Union elements.
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/// @param RunTimeLang Optional parameter, Objective-C runtime version.
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DIType createUnionType(DIDescriptor Scope, StringRef Name, DIFile File,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Flags,
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DIArray Elements, unsigned RunTimeLang = 0);
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/// createTemplateTypeParameter - Create debugging information for template
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/// type parameter.
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/// @param Scope Scope in which this type is defined.
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/// @param Name Type parameter name.
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/// @param Ty Parameter type.
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/// @param File File where this type parameter is defined.
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/// @param LineNo Line number.
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/// @param ColumnNo Column Number.
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DITemplateTypeParameter
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createTemplateTypeParameter(DIDescriptor Scope, StringRef Name, DIType Ty,
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MDNode *File = 0, unsigned LineNo = 0,
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unsigned ColumnNo = 0);
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/// createTemplateValueParameter - Create debugging information for template
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/// value parameter.
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/// @param Scope Scope in which this type is defined.
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/// @param Name Value parameter name.
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/// @param Ty Parameter type.
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/// @param Value Constant parameter value.
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/// @param File File where this type parameter is defined.
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/// @param LineNo Line number.
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/// @param ColumnNo Column Number.
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DITemplateValueParameter
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createTemplateValueParameter(DIDescriptor Scope, StringRef Name, DIType Ty,
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uint64_t Value,
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MDNode *File = 0, unsigned LineNo = 0,
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unsigned ColumnNo = 0);
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/// createArrayType - Create debugging information entry for an array.
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/// @param Size Array size.
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/// @param AlignInBits Alignment.
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/// @param Ty Element type.
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/// @param Subscripts Subscripts.
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DIType createArrayType(uint64_t Size, uint64_t AlignInBits,
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DIType Ty, DIArray Subscripts);
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/// createVectorType - Create debugging information entry for a vector type.
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/// @param Size Array size.
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/// @param AlignInBits Alignment.
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/// @param Ty Element type.
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/// @param Subscripts Subscripts.
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DIType createVectorType(uint64_t Size, uint64_t AlignInBits,
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DIType Ty, DIArray Subscripts);
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/// createEnumerationType - Create debugging information entry for an
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/// enumeration.
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/// @param Scope Scope in which this enumeration is defined.
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/// @param Name Union name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param Elements Enumeration elements.
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DIType createEnumerationType(DIDescriptor Scope, StringRef Name,
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DIFile File, unsigned LineNumber,
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uint64_t SizeInBits,
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uint64_t AlignInBits, DIArray Elements);
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/// createSubroutineType - Create subroutine type.
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/// @param File File in which this subroutine is defined.
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/// @param ParamterTypes An array of subroutine parameter types. This
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/// includes return type at 0th index.
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DIType createSubroutineType(DIFile File, DIArray ParameterTypes);
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/// createArtificialType - Create a new DIType with "artificial" flag set.
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DIType createArtificialType(DIType Ty);
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/// createTemporaryType - Create a temporary forward-declared type.
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DIType createTemporaryType();
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DIType createTemporaryType(DIFile F);
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/// retainType - Retain DIType in a module even if it is not referenced
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/// through debug info anchors.
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void retainType(DIType T);
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/// createUnspecifiedParameter - Create unspeicified type descriptor
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/// for a subroutine type.
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DIDescriptor createUnspecifiedParameter();
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/// getOrCreateArray - Get a DIArray, create one if required.
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DIArray getOrCreateArray(Value *const *Elements, unsigned NumElements);
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/// getOrCreateSubrange - Create a descriptor for a value range. This
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/// implicitly uniques the values returned.
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DISubrange getOrCreateSubrange(int64_t Lo, int64_t Hi);
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/// createGlobalVariable - Create a new descriptor for the specified global.
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/// @param Name Name of the variable.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type.
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/// @param isLocalToUnit Boolean flag indicate whether this variable is
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/// externally visible or not.
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/// @param Val llvm::Value of the variable.
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DIGlobalVariable
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createGlobalVariable(StringRef Name, DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val);
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/// createStaticVariable - Create a new descriptor for the specified
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/// variable.
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/// @param Conext Variable scope.
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/// @param Name Name of the variable.
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/// @param LinakgeName Mangled name of the variable.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type.
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/// @param isLocalToUnit Boolean flag indicate whether this variable is
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/// externally visible or not.
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/// @param Val llvm::Value of the variable.
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DIGlobalVariable
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createStaticVariable(DIDescriptor Context, StringRef Name,
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StringRef LinkageName, DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val);
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/// createLocalVariable - Create a new descriptor for the specified
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/// local variable.
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/// @param Tag Dwarf TAG. Usually DW_TAG_auto_variable or
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/// DW_TAG_arg_variable.
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/// @param Scope Variable scope.
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/// @param Name Variable name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type
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/// @param AlwaysPreserve Boolean. Set to true if debug info for this
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/// variable should be preserved in optimized build.
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/// @param Flags Flags, e.g. artificial variable.
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/// @param ArgNo If this variable is an arugment then this argument's
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/// number. 1 indicates 1st argument.
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DIVariable createLocalVariable(unsigned Tag, DIDescriptor Scope,
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StringRef Name,
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DIFile File, unsigned LineNo,
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DIType Ty, bool AlwaysPreserve = false,
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unsigned Flags = 0,
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unsigned ArgNo = 0);
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/// createComplexVariable - Create a new descriptor for the specified
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/// variable which has a complex address expression for its address.
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/// @param Tag Dwarf TAG. Usually DW_TAG_auto_variable or
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/// DW_TAG_arg_variable.
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/// @param Scope Variable scope.
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/// @param Name Variable name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type
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/// @param Addr A pointer to a vector of complex address operations.
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/// @param NumAddr Num of address operations in the vector.
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/// @param ArgNo If this variable is an arugment then this argument's
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/// number. 1 indicates 1st argument.
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DIVariable createComplexVariable(unsigned Tag, DIDescriptor Scope,
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StringRef Name, DIFile F, unsigned LineNo,
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DIType Ty, Value *const *Addr,
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unsigned NumAddr, unsigned ArgNo = 0);
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/// createFunction - Create a new descriptor for the specified subprogram.
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/// See comments in DISubprogram for descriptions of these fields.
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/// @param Scope Function scope.
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/// @param Name Function name.
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/// @param LinkageName Mangled function name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Function type.
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/// @param isLocalToUnit True if this function is not externally visible..
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/// @param isDefinition True if this is a function definition.
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/// @param Flags e.g. is this function prototyped or not.
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/// This flags are used to emit dwarf attributes.
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/// @param isOptimized True if optimization is ON.
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/// @param Fn llvm::Function pointer.
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DISubprogram createFunction(DIDescriptor Scope, StringRef Name,
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StringRef LinkageName,
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DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit,
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bool isDefinition,
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unsigned Flags = 0,
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bool isOptimized = false,
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Function *Fn = 0);
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/// createMethod - Create a new descriptor for the specified C++ method.
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/// See comments in DISubprogram for descriptions of these fields.
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/// @param Scope Function scope.
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/// @param Name Function name.
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/// @param LinkageName Mangled function name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Function type.
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/// @param isLocalToUnit True if this function is not externally visible..
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/// @param isDefinition True if this is a function definition.
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/// @param Virtuality Attributes describing virtualness. e.g. pure
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/// virtual function.
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/// @param VTableIndex Index no of this method in virtual table.
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/// @param VTableHolder Type that holds vtable.
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/// @param Flags e.g. is this function prototyped or not.
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/// This flags are used to emit dwarf attributes.
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/// @param isOptimized True if optimization is ON.
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/// @param Fn llvm::Function pointer.
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DISubprogram createMethod(DIDescriptor Scope, StringRef Name,
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StringRef LinkageName,
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DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit,
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bool isDefinition,
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unsigned Virtuality = 0, unsigned VTableIndex = 0,
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MDNode *VTableHolder = 0,
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unsigned Flags = 0,
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bool isOptimized = false,
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Function *Fn = 0);
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/// createNameSpace - This creates new descriptor for a namespace
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/// with the specified parent scope.
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/// @param Scope Namespace scope
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/// @param Name Name of this namespace
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/// @param File Source file
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/// @param LineNo Line number
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DINameSpace createNameSpace(DIDescriptor Scope, StringRef Name,
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DIFile File, unsigned LineNo);
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/// createLexicalBlock - This creates a descriptor for a lexical block
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/// with the specified parent context.
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/// @param Scope Parent lexical scope.
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/// @param File Source file
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/// @param Line Line number
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/// @param Col Column number
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DILexicalBlock createLexicalBlock(DIDescriptor Scope, DIFile File,
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unsigned Line, unsigned Col);
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/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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/// @param Storage llvm::Value of the variable
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertAtEnd Location for the new intrinsic.
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Instruction *insertDeclare(llvm::Value *Storage, DIVariable VarInfo,
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BasicBlock *InsertAtEnd);
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/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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/// @param Storage llvm::Value of the variable
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertBefore Location for the new intrinsic.
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Instruction *insertDeclare(llvm::Value *Storage, DIVariable VarInfo,
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Instruction *InsertBefore);
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/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
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/// @param Val llvm::Value of the variable
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/// @param Offset Offset
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertAtEnd Location for the new intrinsic.
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Instruction *insertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
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DIVariable VarInfo,
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BasicBlock *InsertAtEnd);
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/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
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/// @param Val llvm::Value of the variable
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/// @param Offset Offset
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertBefore Location for the new intrinsic.
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Instruction *insertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
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DIVariable VarInfo,
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Instruction *InsertBefore);
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};
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} // end namespace llvm
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#endif
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