DwarfDebug.cpp File Reference

#include "DwarfDebug.h"
#include "DIE.h"
#include "DIEHash.h"
#include "DwarfAccelTable.h"
#include "DwarfCompileUnit.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Triple.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/DIBuilder.h"
#include "llvm/DebugInfo.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Module.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/MD5.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Timer.h"
#include "llvm/Support/ValueHandle.h"
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegisterInfo.h"

Include dependency graph for DwarfDebug.cpp:

Go to the source code of this file.

Classes
struct	SymbolCUSorter
struct	ArangeSpan

Namespaces
	llvm
	List of target independent CodeGen pass IDs.

Macros
#define	DEBUG_TYPE   "dwarfdebug"

Enumerations
enum	DefaultOnOff

Functions
static unsigned	getDwarfVersionFromModule (const Module *M)
	Return Dwarf Version by checking module flags. More...
static MCSymbol *	emitSectionSym (AsmPrinter *Asm, const MCSection *Section, const char *SymbolStem=0)
static bool	isObjCClass (StringRef Name)
static bool	hasObjCCategory (StringRef Name)
static void	getObjCClassCategory (StringRef In, StringRef &Class, StringRef &Category)
static StringRef	getObjCMethodName (StringRef In)
static bool	SectionSort (const MCSection *A, const MCSection *B)
static void	addSubprogramNames (CompileUnit *TheCU, DISubprogram SP, DIE *Die)
static StringRef	getDIEStringAttr (DIE *Die, unsigned Attr)
	Grabs the string in whichever attribute is passed in and returns a reference to it. Returns "" if the attribute doesn't exist. More...
static bool	isContainedInAnonNamespace (DIE *Die)
	Return true if the current DIE is contained within an anonymous namespace. More...
static bool	shouldAddODRHash (CompileUnit *CU, DIE *Die)
static bool	isDbgValueInDefinedReg (const MachineInstr *MI)
static DotDebugLocEntry	getDebugLocEntry (AsmPrinter *Asm, const MCSymbol *FLabel, const MCSymbol *SLabel, const MachineInstr *MI)
static MDNode *	getScopeNode (DebugLoc DL, const LLVMContext &Ctx)
static DebugLoc	getFnDebugLoc (DebugLoc DL, const LLVMContext &Ctx)
static dwarf::PubIndexEntryDescriptor	computeIndexValue (CompileUnit *CU, DIE *Die)
	computeIndexValue - Compute the gdb index value for the DIE and CU. More...
static bool	CUSort (const CompileUnit *A, const CompileUnit *B)

Variables
static cl::opt< bool >	DisableDebugInfoPrinting ("disable-debug-info-print", cl::Hidden, cl::desc("Disable debug info printing"))
static cl::opt< bool >	UnknownLocations ("use-unknown-locations", cl::Hidden, cl::desc("Make an absence of debug location information explicit."), cl::init(false))
static cl::opt< bool >	GenerateODRHash ("generate-odr-hash", cl::Hidden, cl::desc("Add an ODR hash to external type DIEs."), cl::init(false))
static cl::opt< bool >	GenerateCUHash ("generate-cu-hash", cl::Hidden, cl::desc("Add the CU hash as the dwo_id."), cl::init(false))
static cl::opt< bool >	GenerateGnuPubSections ("generate-gnu-dwarf-pub-sections", cl::Hidden, cl::desc("Generate GNU-style pubnames and pubtypes"), cl::init(false))
static cl::opt< DefaultOnOff >	DwarfAccelTables ("dwarf-accel-tables", cl::Hidden, cl::desc("Output prototype dwarf accelerator tables."), cl::values(clEnumVal(Default,"Default for platform"), clEnumVal(Enable,"Enabled"), clEnumVal(Disable,"Disabled"), clEnumValEnd), cl::init(Default))
static cl::opt< DefaultOnOff >	SplitDwarf ("split-dwarf", cl::Hidden, cl::desc("Output prototype dwarf split debug info."), cl::values(clEnumVal(Default,"Default for platform"), clEnumVal(Enable,"Enabled"), clEnumVal(Disable,"Disabled"), clEnumValEnd), cl::init(Default))
static cl::opt< DefaultOnOff >	DwarfPubSections ("generate-dwarf-pub-sections", cl::Hidden, cl::desc("Generate DWARF pubnames and pubtypes sections"), cl::values(clEnumVal(Default,"Default for platform"), clEnumVal(Enable,"Enabled"), clEnumVal(Disable,"Disabled"), clEnumValEnd), cl::init(Default))
static const char *const	DWARFGroupName = "DWARF Emission"
static const char *const	DbgTimerName = "DWARF Debug Writer"
static const unsigned	InitAbbreviationsSetSize = 9

Macro Definition Documentation

#define DEBUG_TYPE   "dwarfdebug"

Definition at line 14 of file DwarfDebug.cpp.

Enumeration Type Documentation

enum DefaultOnOff

Definition at line 77 of file DwarfDebug.cpp.

Function Documentation

static void addSubprogramNames ( CompileUnit *  TheCU, DISubprogram  SP, DIE *  Die  )

static

Definition at line 330 of file DwarfDebug.cpp.

References llvm::CompileUnit::addAccelName(), llvm::CompileUnit::addAccelObjC(), llvm::tgtok::Class, llvm::DISubprogram::getLinkageName(), llvm::DISubprogram::getName(), getObjCClassCategory(), getObjCMethodName(), llvm::DISubprogram::isDefinition(), and isObjCClass().

static dwarf::PubIndexEntryDescriptor computeIndexValue ( CompileUnit *  CU, DIE *  Die  )

static

computeIndexValue - Compute the gdb index value for the DIE and CU.

Definition at line 2389 of file DwarfDebug.cpp.

References llvm::dwarf::DW_LANG_C_plus_plus, llvm::DIE::findAttribute(), llvm::CompileUnit::getLanguage(), llvm::DIE::getTag(), llvm::dwarf::GIEK_FUNCTION, llvm::dwarf::GIEK_NONE, llvm::dwarf::GIEK_TYPE, llvm::dwarf::GIEK_VARIABLE, llvm::dwarf::GIEL_EXTERNAL, and llvm::dwarf::GIEL_STATIC.

static bool CUSort ( const CompileUnit *  A, const CompileUnit *  B  )

static

Definition at line 2768 of file DwarfDebug.cpp.

References llvm::CompileUnit::getUniqueID().

static MCSymbol* emitSectionSym ( AsmPrinter *  Asm, const MCSection *  Section, const char *  SymbolStem = 0  )

static

Definition at line 228 of file DwarfDebug.cpp.

References llvm::MCStreamer::EmitLabel(), llvm::AsmPrinter::GetTempSymbol(), llvm::AsmPrinter::OutStreamer, and llvm::MCStreamer::SwitchSection().

static DotDebugLocEntry getDebugLocEntry ( AsmPrinter *  Asm, const MCSymbol *  FLabel, const MCSymbol *  SLabel, const MachineInstr *  MI  )

static

Definition at line 1322 of file DwarfDebug.cpp.

References llvm::MachineOperand::getCImm(), llvm::MachineOperand::getFPImm(), llvm::MachineOperand::getImm(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineOperand::isCImm(), llvm::MachineOperand::isFPImm(), llvm::MachineOperand::isImm(), llvm::MachineOperand::isReg(), llvm_unreachable, and llvm::MachineLocation::set().

static StringRef getDIEStringAttr ( DIE *  Die, unsigned  Attr  )

static

Grabs the string in whichever attribute is passed in and returns a reference to it. Returns "" if the attribute doesn't exist.

Definition at line 1009 of file DwarfDebug.cpp.

References llvm::DIE::findAttribute().

Referenced by isContainedInAnonNamespace(), and shouldAddODRHash().

static unsigned getDwarfVersionFromModule ( const Module *  M )

static

Return Dwarf Version by checking module flags.

Definition at line 174 of file DwarfDebug.cpp.

References llvm::Module::getModuleFlag().

Referenced by llvm::DwarfDebug::DwarfDebug().

static DebugLoc getFnDebugLoc ( DebugLoc  DL, const LLVMContext &  Ctx  )

static

Definition at line 1575 of file DwarfDebug.cpp.

References llvm::DebugLoc::get(), llvm::getDISubprogram(), llvm::DISubprogram::getLineNumber(), llvm::DISubprogram::getScopeLineNumber(), getScopeNode(), and llvm::DIDescriptor::isSubprogram().

Referenced by llvm::DwarfDebug::beginFunction().

static void getObjCClassCategory ( StringRef  In, StringRef &  Class, StringRef &  Category  )

static

Definition at line 302 of file DwarfDebug.cpp.

References llvm::StringRef::find(), hasObjCCategory(), and llvm::StringRef::slice().

Referenced by addSubprogramNames().

static StringRef getObjCMethodName ( StringRef  In )

static

Definition at line 315 of file DwarfDebug.cpp.

References llvm::StringRef::find(), and llvm::StringRef::slice().

Referenced by addSubprogramNames().

static MDNode* getScopeNode ( DebugLoc  DL, const LLVMContext &  Ctx  )

static

Definition at line 1567 of file DwarfDebug.cpp.

References llvm::DebugLoc::getFromDILocation(), llvm::DebugLoc::getInlinedAt(), and llvm::DebugLoc::getScope().

Referenced by getFnDebugLoc().

static bool hasObjCCategory ( StringRef  Name )

static

Definition at line 296 of file DwarfDebug.cpp.

References llvm::StringRef::find(), isObjCClass(), and llvm::StringRef::npos.

Referenced by getObjCClassCategory().

static bool isContainedInAnonNamespace ( DIE *  Die )

static

Return true if the current DIE is contained within an anonymous namespace.

Definition at line 1019 of file DwarfDebug.cpp.

References getDIEStringAttr(), llvm::DIE::getParent(), and llvm::DIE::getTag().

Referenced by shouldAddODRHash().

static bool isDbgValueInDefinedReg ( const MachineInstr *  MI )

static

Definition at line 1313 of file DwarfDebug.cpp.

References llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineInstr::isDebugValue(), llvm::MachineOperand::isImm(), and llvm::MachineOperand::isReg().

Referenced by llvm::DwarfDebug::beginFunction().

static bool isObjCClass ( StringRef  Name )

static

Definition at line 292 of file DwarfDebug.cpp.

References llvm::StringRef::startswith().

Referenced by addSubprogramNames(), and hasObjCCategory().

static bool SectionSort ( const MCSection *  A, const MCSection *  B  )

static

Definition at line 320 of file DwarfDebug.cpp.

References llvm::MCSection::getLabelBeginName().

static bool shouldAddODRHash ( CompileUnit *  CU, DIE *  Die  )

static

Test if the current CU language is C++ and that we have a named type that is not contained in an anonymous namespace.

Definition at line 1034 of file DwarfDebug.cpp.

References llvm::dwarf::DW_LANG_C_plus_plus, getDIEStringAttr(), llvm::CompileUnit::getLanguage(), and isContainedInAnonNamespace().

Variable Documentation

const char* const DbgTimerName = "DWARF Debug Writer"

static

Definition at line 109 of file DwarfDebug.cpp.

Referenced by llvm::DwarfDebug::DwarfDebug().

cl::opt<bool> DisableDebugInfoPrinting("disable-debug-info-print", cl::Hidden, cl::desc("Disable debug info printing"))

static

Referenced by llvm::DwarfDebug::beginModule().

cl::opt<DefaultOnOff> DwarfAccelTables("dwarf-accel-tables", cl::Hidden, cl::desc("Output prototype dwarf accelerator tables."), cl::values(clEnumVal(Default,"Default for platform"),clEnumVal(Enable,"Enabled"),clEnumVal(Disable,"Disabled"), clEnumValEnd), cl::init(Default))

static

Referenced by llvm::DwarfDebug::DwarfDebug().

const char* const DWARFGroupName = "DWARF Emission"

static

Definition at line 108 of file DwarfDebug.cpp.

Referenced by llvm::DwarfDebug::DwarfDebug().

cl::opt<DefaultOnOff> DwarfPubSections("generate-dwarf-pub-sections", cl::Hidden, cl::desc("Generate DWARF pubnames and pubtypes sections"), cl::values(clEnumVal(Default,"Default for platform"),clEnumVal(Enable,"Enabled"),clEnumVal(Disable,"Disabled"), clEnumValEnd), cl::init(Default))

static

Referenced by llvm::DwarfDebug::DwarfDebug().

cl::opt<bool> GenerateCUHash("generate-cu-hash", cl::Hidden, cl::desc("Add the CU hash as the dwo_id."), cl::init(false))

static

cl::opt<bool> GenerateGnuPubSections("generate-gnu-dwarf-pub-sections", cl::Hidden, cl::desc("Generate GNU-style pubnames and pubtypes"), cl::init(false))

static

Referenced by llvm::DwarfDebug::endModule().

cl::opt<bool> GenerateODRHash("generate-odr-hash", cl::Hidden, cl::desc("Add an ODR hash to external type DIEs."), cl::init(false))

static

const unsigned InitAbbreviationsSetSize = 9

static

Definition at line 115 of file DwarfDebug.cpp.

cl::opt<DefaultOnOff> SplitDwarf("split-dwarf", cl::Hidden, cl::desc("Output prototype dwarf split debug info."), cl::values(clEnumVal(Default,"Default for platform"),clEnumVal(Enable,"Enabled"),clEnumVal(Disable,"Disabled"), clEnumValEnd), cl::init(Default))

static

Referenced by llvm::DwarfDebug::DwarfDebug().

cl::opt<bool> UnknownLocations("use-unknown-locations", cl::Hidden, cl::desc("Make an absence of debug location information explicit."), cl::init(false))

static

Referenced by llvm::DwarfDebug::beginInstruction().