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https://github.com/c64scene-ar/llvm-6502.git
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DebugInfo: Rename DwarfCompileUnit.* to DwarfUnit.* to match their contents.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196140 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
@@ -1,431 +0,0 @@
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//===-- llvm/CodeGen/DwarfUnit.h - Dwarf Compile Unit ---*- 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 contains support for writing dwarf compile unit.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H
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#define CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H
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#include "DIE.h"
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#include "DwarfDebug.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/DebugInfo.h"
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#include "llvm/MC/MCExpr.h"
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namespace llvm {
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class MachineLocation;
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class MachineOperand;
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class ConstantInt;
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class ConstantFP;
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class DbgVariable;
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//===----------------------------------------------------------------------===//
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/// Unit - This dwarf writer support class manages information associated
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/// with a source file.
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class Unit {
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protected:
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/// UniqueID - a numeric ID unique among all CUs in the module
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unsigned UniqueID;
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/// Node - MDNode for the compile unit.
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DICompileUnit Node;
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/// CUDie - Compile unit debug information entry.
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const OwningPtr<DIE> CUDie;
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/// Offset of the CUDie from beginning of debug info section.
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unsigned DebugInfoOffset;
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/// Asm - Target of Dwarf emission.
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AsmPrinter *Asm;
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// Holders for some common dwarf information.
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DwarfDebug *DD;
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DwarfUnits *DU;
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/// IndexTyDie - An anonymous type for index type. Owned by CUDie.
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DIE *IndexTyDie;
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/// MDNodeToDieMap - Tracks the mapping of unit level debug information
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/// variables to debug information entries.
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DenseMap<const MDNode *, DIE *> MDNodeToDieMap;
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/// MDNodeToDIEEntryMap - Tracks the mapping of unit level debug information
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/// descriptors to debug information entries using a DIEEntry proxy.
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DenseMap<const MDNode *, DIEEntry *> MDNodeToDIEEntryMap;
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/// GlobalNames - A map of globally visible named entities for this unit.
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StringMap<const DIE *> GlobalNames;
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/// GlobalTypes - A map of globally visible types for this unit.
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StringMap<const DIE *> GlobalTypes;
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/// AccelNames - A map of names for the name accelerator table.
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StringMap<std::vector<const DIE *> > AccelNames;
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/// AccelObjC - A map of objc spec for the objc accelerator table.
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StringMap<std::vector<const DIE *> > AccelObjC;
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/// AccelNamespace - A map of names for the namespace accelerator table.
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StringMap<std::vector<const DIE *> > AccelNamespace;
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/// AccelTypes - A map of names for the type accelerator table.
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StringMap<std::vector<std::pair<const DIE *, unsigned> > > AccelTypes;
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/// DIEBlocks - A list of all the DIEBlocks in use.
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std::vector<DIEBlock *> DIEBlocks;
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/// ContainingTypeMap - This map is used to keep track of subprogram DIEs that
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/// need DW_AT_containing_type attribute. This attribute points to a DIE that
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/// corresponds to the MDNode mapped with the subprogram DIE.
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DenseMap<DIE *, const MDNode *> ContainingTypeMap;
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// DIEValueAllocator - All DIEValues are allocated through this allocator.
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BumpPtrAllocator DIEValueAllocator;
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// DIEIntegerOne - A preallocated DIEValue because 1 is used frequently.
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DIEInteger *DIEIntegerOne;
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Unit(unsigned UID, DIE *D, DICompileUnit CU, AsmPrinter *A, DwarfDebug *DW,
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DwarfUnits *DWU);
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public:
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virtual ~Unit();
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// Accessors.
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unsigned getUniqueID() const { return UniqueID; }
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virtual uint16_t getLanguage() const = 0;
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DICompileUnit getNode() const { return Node; }
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DIE *getCUDie() const { return CUDie.get(); }
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const StringMap<const DIE *> &getGlobalNames() const { return GlobalNames; }
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const StringMap<const DIE *> &getGlobalTypes() const { return GlobalTypes; }
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const StringMap<std::vector<const DIE *> > &getAccelNames() const {
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return AccelNames;
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}
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const StringMap<std::vector<const DIE *> > &getAccelObjC() const {
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return AccelObjC;
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}
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const StringMap<std::vector<const DIE *> > &getAccelNamespace() const {
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return AccelNamespace;
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}
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const StringMap<std::vector<std::pair<const DIE *, unsigned> > > &
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getAccelTypes() const {
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return AccelTypes;
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}
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unsigned getDebugInfoOffset() const { return DebugInfoOffset; }
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void setDebugInfoOffset(unsigned DbgInfoOff) { DebugInfoOffset = DbgInfoOff; }
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/// hasContent - Return true if this compile unit has something to write out.
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bool hasContent() const { return !CUDie->getChildren().empty(); }
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/// getParentContextString - Get a string containing the language specific
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/// context for a global name.
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std::string getParentContextString(DIScope Context) const;
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/// addGlobalName - Add a new global entity to the compile unit.
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///
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void addGlobalName(StringRef Name, DIE *Die, DIScope Context);
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/// addAccelName - Add a new name to the name accelerator table.
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void addAccelName(StringRef Name, const DIE *Die);
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/// addAccelObjC - Add a new name to the ObjC accelerator table.
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void addAccelObjC(StringRef Name, const DIE *Die);
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/// addAccelNamespace - Add a new name to the namespace accelerator table.
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void addAccelNamespace(StringRef Name, const DIE *Die);
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/// addAccelType - Add a new type to the type accelerator table.
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void addAccelType(StringRef Name, std::pair<const DIE *, unsigned> Die);
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/// getDIE - Returns the debug information entry map slot for the
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/// specified debug variable. We delegate the request to DwarfDebug
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/// when the MDNode can be part of the type system, since DIEs for
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/// the type system can be shared across CUs and the mappings are
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/// kept in DwarfDebug.
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DIE *getDIE(DIDescriptor D) const;
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/// getDIEBlock - Returns a fresh newly allocated DIEBlock.
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DIEBlock *getDIEBlock() { return new (DIEValueAllocator) DIEBlock(); }
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/// insertDIE - Insert DIE into the map. We delegate the request to DwarfDebug
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/// when the MDNode can be part of the type system, since DIEs for
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/// the type system can be shared across CUs and the mappings are
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/// kept in DwarfDebug.
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void insertDIE(DIDescriptor Desc, DIE *D);
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/// addDie - Adds or interns the DIE to the compile unit.
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///
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void addDie(DIE *Buffer) { CUDie->addChild(Buffer); }
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/// addFlag - Add a flag that is true to the DIE.
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void addFlag(DIE *Die, dwarf::Attribute Attribute);
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/// addUInt - Add an unsigned integer attribute data and value.
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void addUInt(DIE *Die, dwarf::Attribute Attribute, Optional<dwarf::Form> Form,
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uint64_t Integer);
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void addUInt(DIEBlock *Block, dwarf::Form Form, uint64_t Integer);
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/// addSInt - Add an signed integer attribute data and value.
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void addSInt(DIE *Die, dwarf::Attribute Attribute, Optional<dwarf::Form> Form,
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int64_t Integer);
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void addSInt(DIEBlock *Die, Optional<dwarf::Form> Form, int64_t Integer);
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/// addString - Add a string attribute data and value.
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void addString(DIE *Die, dwarf::Attribute Attribute, const StringRef Str);
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/// addLocalString - Add a string attribute data and value.
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void addLocalString(DIE *Die, dwarf::Attribute Attribute,
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const StringRef Str);
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/// addExpr - Add a Dwarf expression attribute data and value.
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void addExpr(DIEBlock *Die, dwarf::Form Form, const MCExpr *Expr);
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/// addLabel - Add a Dwarf label attribute data and value.
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void addLabel(DIE *Die, dwarf::Attribute Attribute, dwarf::Form Form,
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const MCSymbol *Label);
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void addLabel(DIEBlock *Die, dwarf::Form Form, const MCSymbol *Label);
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/// addSectionLabel - Add a Dwarf section label attribute data and value.
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///
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void addSectionLabel(DIE *Die, dwarf::Attribute Attribute,
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const MCSymbol *Label);
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/// addSectionOffset - Add an offset into a section attribute data and value.
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///
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void addSectionOffset(DIE *Die, dwarf::Attribute Attribute, uint64_t Integer);
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/// addOpAddress - Add a dwarf op address data and value using the
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/// form given and an op of either DW_FORM_addr or DW_FORM_GNU_addr_index.
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void addOpAddress(DIEBlock *Die, const MCSymbol *Label);
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/// addSectionDelta - Add a label delta attribute data and value.
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void addSectionDelta(DIE *Die, dwarf::Attribute Attribute, const MCSymbol *Hi,
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const MCSymbol *Lo);
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/// addDIEEntry - Add a DIE attribute data and value.
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void addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIE *Entry);
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/// addDIEEntry - Add a DIE attribute data and value.
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void addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIEEntry *Entry);
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/// addBlock - Add block data.
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void addBlock(DIE *Die, dwarf::Attribute Attribute, DIEBlock *Block);
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/// addSourceLine - Add location information to specified debug information
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/// entry.
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void addSourceLine(DIE *Die, DIVariable V);
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void addSourceLine(DIE *Die, DIGlobalVariable G);
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void addSourceLine(DIE *Die, DISubprogram SP);
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void addSourceLine(DIE *Die, DIType Ty);
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void addSourceLine(DIE *Die, DINameSpace NS);
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void addSourceLine(DIE *Die, DIObjCProperty Ty);
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/// addAddress - Add an address attribute to a die based on the location
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/// provided.
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void addAddress(DIE *Die, dwarf::Attribute Attribute,
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const MachineLocation &Location, bool Indirect = false);
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/// addConstantValue - Add constant value entry in variable DIE.
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void addConstantValue(DIE *Die, const MachineOperand &MO, DIType Ty);
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void addConstantValue(DIE *Die, const ConstantInt *CI, bool Unsigned);
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void addConstantValue(DIE *Die, const APInt &Val, bool Unsigned);
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/// addConstantFPValue - Add constant value entry in variable DIE.
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void addConstantFPValue(DIE *Die, const MachineOperand &MO);
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void addConstantFPValue(DIE *Die, const ConstantFP *CFP);
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/// addTemplateParams - Add template parameters in buffer.
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void addTemplateParams(DIE &Buffer, DIArray TParams);
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/// addRegisterOp - Add register operand.
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void addRegisterOp(DIEBlock *TheDie, unsigned Reg);
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/// addRegisterOffset - Add register offset.
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void addRegisterOffset(DIEBlock *TheDie, unsigned Reg, int64_t Offset);
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/// addComplexAddress - Start with the address based on the location provided,
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/// and generate the DWARF information necessary to find the actual variable
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/// (navigating the extra location information encoded in the type) based on
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/// the starting location. Add the DWARF information to the die.
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void addComplexAddress(const DbgVariable &DV, DIE *Die,
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dwarf::Attribute Attribute,
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const MachineLocation &Location);
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// FIXME: Should be reformulated in terms of addComplexAddress.
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/// addBlockByrefAddress - Start with the address based on the location
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/// provided, and generate the DWARF information necessary to find the
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/// actual Block variable (navigating the Block struct) based on the
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/// starting location. Add the DWARF information to the die. Obsolete,
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/// please use addComplexAddress instead.
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void addBlockByrefAddress(const DbgVariable &DV, DIE *Die,
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dwarf::Attribute Attribute,
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const MachineLocation &Location);
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/// addVariableAddress - Add DW_AT_location attribute for a
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/// DbgVariable based on provided MachineLocation.
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void addVariableAddress(const DbgVariable &DV, DIE *Die,
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MachineLocation Location);
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/// addType - Add a new type attribute to the specified entity. This takes
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/// and attribute parameter because DW_AT_friend attributes are also
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/// type references.
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void addType(DIE *Entity, DIType Ty,
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dwarf::Attribute Attribute = dwarf::DW_AT_type);
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/// getOrCreateNameSpace - Create a DIE for DINameSpace.
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DIE *getOrCreateNameSpace(DINameSpace NS);
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/// getOrCreateSubprogramDIE - Create new DIE using SP.
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DIE *getOrCreateSubprogramDIE(DISubprogram SP);
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/// getOrCreateTypeDIE - Find existing DIE or create new DIE for the
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/// given DIType.
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DIE *getOrCreateTypeDIE(const MDNode *N);
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/// getOrCreateContextDIE - Get context owner's DIE.
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DIE *createTypeDIE(DICompositeType Ty);
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/// getOrCreateContextDIE - Get context owner's DIE.
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DIE *getOrCreateContextDIE(DIScope Context);
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/// constructContainingTypeDIEs - Construct DIEs for types that contain
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/// vtables.
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void constructContainingTypeDIEs();
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/// constructVariableDIE - Construct a DIE for the given DbgVariable.
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DIE *constructVariableDIE(DbgVariable &DV, bool isScopeAbstract);
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/// Create a DIE with the given Tag, add the DIE to its parent, and
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/// call insertDIE if MD is not null.
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DIE *createAndAddDIE(unsigned Tag, DIE &Parent,
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DIDescriptor N = DIDescriptor());
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/// Compute the size of a header for this unit, not including the initial
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/// length field.
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unsigned getHeaderSize() const {
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return sizeof(int16_t) + // DWARF version number
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sizeof(int32_t) + // Offset Into Abbrev. Section
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sizeof(int8_t); // Pointer Size (in bytes)
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}
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/// Emit the header for this unit, not including the initial length field.
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void emitHeader(const MCSection *ASection, const MCSymbol *ASectionSym);
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protected:
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/// getOrCreateStaticMemberDIE - Create new static data member DIE.
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DIE *getOrCreateStaticMemberDIE(DIDerivedType DT);
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private:
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/// constructTypeDIE - Construct basic type die from DIBasicType.
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void constructTypeDIE(DIE &Buffer, DIBasicType BTy);
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/// constructTypeDIE - Construct derived type die from DIDerivedType.
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void constructTypeDIE(DIE &Buffer, DIDerivedType DTy);
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/// constructTypeDIE - Construct type DIE from DICompositeType.
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void constructTypeDIE(DIE &Buffer, DICompositeType CTy);
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/// constructSubrangeDIE - Construct subrange DIE from DISubrange.
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void constructSubrangeDIE(DIE &Buffer, DISubrange SR, DIE *IndexTy);
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/// constructArrayTypeDIE - Construct array type DIE from DICompositeType.
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void constructArrayTypeDIE(DIE &Buffer, DICompositeType CTy);
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/// constructEnumTypeDIE - Construct enum type DIE from DIEnumerator.
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void constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy);
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/// constructMemberDIE - Construct member DIE from DIDerivedType.
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void constructMemberDIE(DIE &Buffer, DIDerivedType DT);
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/// constructTemplateTypeParameterDIE - Construct new DIE for the given
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/// DITemplateTypeParameter.
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void constructTemplateTypeParameterDIE(DIE &Buffer,
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DITemplateTypeParameter TP);
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/// constructTemplateValueParameterDIE - Construct new DIE for the given
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/// DITemplateValueParameter.
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void constructTemplateValueParameterDIE(DIE &Buffer,
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DITemplateValueParameter TVP);
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/// getLowerBoundDefault - Return the default lower bound for an array. If the
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/// DWARF version doesn't handle the language, return -1.
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int64_t getDefaultLowerBound() const;
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/// getDIEEntry - Returns the debug information entry for the specified
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/// debug variable.
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DIEEntry *getDIEEntry(const MDNode *N) const {
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return MDNodeToDIEEntryMap.lookup(N);
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}
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/// insertDIEEntry - Insert debug information entry into the map.
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void insertDIEEntry(const MDNode *N, DIEEntry *E) {
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MDNodeToDIEEntryMap.insert(std::make_pair(N, E));
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}
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// getIndexTyDie - Get an anonymous type for index type.
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DIE *getIndexTyDie() { return IndexTyDie; }
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// setIndexTyDie - Set D as anonymous type for index which can be reused
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// later.
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void setIndexTyDie(DIE *D) { IndexTyDie = D; }
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/// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug
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/// information entry.
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DIEEntry *createDIEEntry(DIE *Entry);
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/// resolve - Look in the DwarfDebug map for the MDNode that
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/// corresponds to the reference.
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template <typename T> T resolve(DIRef<T> Ref) const {
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return DD->resolve(Ref);
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}
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/// If this is a named finished type then include it in the list of types for
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/// the accelerator tables.
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void updateAcceleratorTables(DIScope Context, DIType Ty, const DIE *TyDIE);
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};
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class CompileUnit : public Unit {
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public:
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CompileUnit(unsigned UID, DIE *D, DICompileUnit Node, AsmPrinter *A,
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DwarfDebug *DW, DwarfUnits *DWU);
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/// createGlobalVariableDIE - create global variable DIE.
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void createGlobalVariableDIE(DIGlobalVariable GV);
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/// addLabelAddress - Add a dwarf label attribute data and value using
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/// either DW_FORM_addr or DW_FORM_GNU_addr_index.
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void addLabelAddress(DIE *Die, dwarf::Attribute Attribute, MCSymbol *Label);
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uint16_t getLanguage() const { return getNode().getLanguage(); }
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};
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class TypeUnit : public Unit {
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private:
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uint16_t Language;
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public:
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TypeUnit(unsigned UID, DIE *D, uint16_t Language, AsmPrinter *A,
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DwarfDebug *DW, DwarfUnits *DWU);
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uint16_t getLanguage() const { return Language; }
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};
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} // end llvm namespace
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#endif
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