MCDwarf.cpp File Reference

#include "llvm/MC/MCDwarf.h"
#include "llvm/ADT/Hashing.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Config/config.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/LEB128.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/raw_ostream.h"

Include dependency graph for MCDwarf.cpp:

Go to the source code of this file.

Classes
struct	llvm::DenseMapInfo< CIEKey >

Namespaces
	llvm
	List of target independent CodeGen pass IDs.

Macros
#define	SPECIAL_ADDR(op)   (((op) - DWARF2_LINE_OPCODE_BASE)/DWARF2_LINE_RANGE)
#define	MAX_SPECIAL_ADDR_DELTA   SPECIAL_ADDR(255)
#define	DWARF2_LINE_OPCODE_BASE   13
#define	DWARF2_LINE_BASE   -5
#define	DWARF2_LINE_RANGE   14

Functions
static uint64_t	ScaleAddrDelta (MCContext &Context, uint64_t AddrDelta)
static const MCExpr *	MakeStartMinusEndExpr (const MCStreamer &MCOS, const MCSymbol &Start, const MCSymbol &End, int IntVal)
static void	EmitDwarfLineTable (MCStreamer *MCOS, const MCSection *Section, const MCLineSection *LineSection, unsigned CUID)
static void	EmitAbbrev (MCStreamer *MCOS, uint64_t Name, uint64_t Form)
static void	EmitGenDwarfAbbrev (MCStreamer *MCOS)
static void	EmitGenDwarfAranges (MCStreamer *MCOS, const MCSymbol *InfoSectionSymbol)
static void	EmitGenDwarfInfo (MCStreamer *MCOS, const MCSymbol *AbbrevSectionSymbol, const MCSymbol *LineSectionSymbol)
static int	getDataAlignmentFactor (MCStreamer &streamer)
static unsigned	getSizeForEncoding (MCStreamer &streamer, unsigned symbolEncoding)
static void	EmitSymbol (MCStreamer &streamer, const MCSymbol &symbol, unsigned symbolEncoding, const char *comment=0)
static void	EmitPersonality (MCStreamer &streamer, const MCSymbol &symbol, unsigned symbolEncoding)
static void	EmitEncodingByte (MCStreamer &Streamer, unsigned Encoding, StringRef Prefix)

Macro Definition Documentation

#define DWARF2_LINE_BASE   -5

Definition at line 44 of file MCDwarf.cpp.

Referenced by llvm::MCDwarfFileTable::EmitCU(), and llvm::MCDwarfLineAddr::Encode().

#define DWARF2_LINE_OPCODE_BASE   13

Definition at line 40 of file MCDwarf.cpp.

Referenced by llvm::MCDwarfFileTable::EmitCU(), and llvm::MCDwarfLineAddr::Encode().

#define DWARF2_LINE_RANGE   14

Definition at line 47 of file MCDwarf.cpp.

Referenced by llvm::MCDwarfFileTable::EmitCU(), and llvm::MCDwarfLineAddr::Encode().

#define MAX_SPECIAL_ADDR_DELTA   SPECIAL_ADDR(255)

Definition at line 35 of file MCDwarf.cpp.

Referenced by llvm::MCDwarfLineAddr::Encode().

#define SPECIAL_ADDR

(

op

)

(((op) - DWARF2_LINE_OPCODE_BASE)/DWARF2_LINE_RANGE)

Definition at line 32 of file MCDwarf.cpp.

Function Documentation

static void EmitAbbrev ( MCStreamer *  MCOS, uint64_t  Name, uint64_t  Form  )

static

Definition at line 451 of file MCDwarf.cpp.

References llvm::MCStreamer::EmitULEB128IntValue().

Referenced by EmitGenDwarfAbbrev().

static void EmitDwarfLineTable ( MCStreamer *  MCOS, const MCSection *  Section, const MCLineSection *  LineSection, unsigned  CUID  )

inlinestatic

Definition at line 127 of file MCDwarf.cpp.

References llvm::MCLineSection::containEntriesForID(), llvm::MCContext::CreateTempSymbol(), llvm::dwarf::DW_LNS_negate_stmt, llvm::dwarf::DW_LNS_set_basic_block, llvm::dwarf::DW_LNS_set_column, llvm::dwarf::DW_LNS_set_epilogue_begin, llvm::dwarf::DW_LNS_set_file, llvm::dwarf::DW_LNS_set_isa, llvm::dwarf::DW_LNS_set_prologue_end, DWARF2_FLAG_BASIC_BLOCK, DWARF2_FLAG_EPILOGUE_BEGIN, DWARF2_FLAG_IS_STMT, DWARF2_FLAG_PROLOGUE_END, DWARF2_LINE_DEFAULT_IS_STMT, llvm::MCStreamer::EmitDwarfAdvanceLineAddr(), llvm::MCStreamer::EmitIntValue(), llvm::MCStreamer::EmitLabel(), llvm::MCStreamer::EmitULEB128IntValue(), llvm::MCContext::getAsmInfo(), llvm::MCStreamer::getContext(), llvm::MCObjectFileInfo::getDwarfLineSection(), llvm::MCLineSection::getMCLineEntries(), llvm::MCContext::getObjectFileInfo(), llvm::MCAsmInfo::getPointerSize(), and llvm::MCStreamer::SwitchSection().

Referenced by llvm::MCDwarfFileTable::EmitCU().

static void EmitEncodingByte ( MCStreamer &  Streamer, unsigned  Encoding, StringRef  Prefix  )

static

Definition at line 898 of file MCDwarf.cpp.

References llvm::MCStreamer::AddComment(), llvm::dwarf::DW_EH_PE_absptr, llvm::dwarf::DW_EH_PE_indirect, llvm::dwarf::DW_EH_PE_omit, llvm::dwarf::DW_EH_PE_pcrel, llvm::dwarf::DW_EH_PE_sdata4, llvm::dwarf::DW_EH_PE_sdata8, llvm::dwarf::DW_EH_PE_udata4, llvm::dwarf::DW_EH_PE_udata8, llvm::MCStreamer::EmitIntValue(), and llvm::MCStreamer::isVerboseAsm().

static void EmitGenDwarfAbbrev ( MCStreamer *  MCOS )

static

Definition at line 458 of file MCDwarf.cpp.

References llvm::dwarf::DW_CHILDREN_no, llvm::dwarf::DW_CHILDREN_yes, EmitAbbrev(), llvm::MCStreamer::EmitIntValue(), llvm::MCStreamer::EmitULEB128IntValue(), llvm::StringRef::empty(), llvm::MCStreamer::getContext(), llvm::MCObjectFileInfo::getDwarfAbbrevSection(), llvm::MCContext::getDwarfDebugFlags(), llvm::MCContext::getObjectFileInfo(), and llvm::MCStreamer::SwitchSection().

Referenced by llvm::MCGenDwarfInfo::Emit().

static void EmitGenDwarfAranges ( MCStreamer *  MCOS, const MCSymbol *  InfoSectionSymbol  )

static

Definition at line 503 of file MCDwarf.cpp.

References llvm::MCSymbolRefExpr::Create(), llvm::MCContext::CreateTempSymbol(), llvm::MCStreamer::EmitAbsValue(), llvm::MCStreamer::EmitIntValue(), llvm::MCStreamer::EmitLabel(), llvm::MCStreamer::EmitSymbolValue(), llvm::MCContext::getAsmInfo(), llvm::MCStreamer::getContext(), llvm::MCObjectFileInfo::getDwarfARangesSection(), llvm::MCContext::getGenDwarfSection(), llvm::MCContext::getGenDwarfSectionStartSym(), llvm::MCContext::getObjectFileInfo(), llvm::MCAsmInfo::getPointerSize(), MakeStartMinusEndExpr(), llvm::MCContext::setGenDwarfSectionEndSym(), llvm::MCStreamer::SwitchSection(), and llvm::MCSymbolRefExpr::VK_None.

Referenced by llvm::MCGenDwarfInfo::Emit().

static void EmitGenDwarfInfo ( MCStreamer *  MCOS, const MCSymbol *  AbbrevSectionSymbol, const MCSymbol *  LineSectionSymbol  )

static

Definition at line 573 of file MCDwarf.cpp.

References llvm::MCSymbolRefExpr::Create(), llvm::MCContext::CreateTempSymbol(), llvm::dwarf::DW_LANG_Mips_Assembler, llvm::MCStreamer::EmitAbsValue(), llvm::MCStreamer::EmitBytes(), llvm::MCStreamer::EmitIntValue(), llvm::MCStreamer::EmitLabel(), llvm::MCStreamer::EmitSymbolValue(), llvm::MCStreamer::EmitULEB128IntValue(), llvm::StringRef::empty(), llvm::MCContext::getAsmInfo(), llvm::MCContext::getCompilationDir(), llvm::MCStreamer::getContext(), llvm::MCContext::getDwarfDebugFlags(), llvm::MCContext::getDwarfDebugProducer(), llvm::MCObjectFileInfo::getDwarfInfoSection(), llvm::MCGenDwarfLabelEntry::getFileNumber(), llvm::MCContext::getGenDwarfSectionEndSym(), llvm::MCContext::getGenDwarfSectionStartSym(), llvm::MCGenDwarfLabelEntry::getLabel(), llvm::MCGenDwarfLabelEntry::getLineNumber(), llvm::MCContext::getMCDwarfDirs(), llvm::MCContext::getMCDwarfFiles(), llvm::MCContext::getMCGenDwarfLabelEntries(), llvm::Intrinsic::getName(), llvm::MCGenDwarfLabelEntry::getName(), llvm::MCContext::getObjectFileInfo(), llvm::MCAsmInfo::getPointerSize(), MakeStartMinusEndExpr(), llvm::SmallVectorTemplateCommon< T >::size(), llvm::MCStreamer::SwitchSection(), and llvm::MCSymbolRefExpr::VK_None.

Referenced by llvm::MCGenDwarfInfo::Emit().

static void EmitPersonality ( MCStreamer &  streamer, const MCSymbol &  symbol, unsigned  symbolEncoding  )

static

Definition at line 851 of file MCDwarf.cpp.

References llvm::MCStreamer::EmitValue(), llvm::MCContext::getAsmInfo(), llvm::MCStreamer::getContext(), llvm::MCAsmInfo::getExprForPersonalitySymbol(), and getSizeForEncoding().

static void EmitSymbol ( MCStreamer &  streamer, const MCSymbol &  symbol, unsigned  symbolEncoding, const char *  comment = 0  )

static

Definition at line 839 of file MCDwarf.cpp.

References llvm::MCStreamer::AddComment(), llvm::MCStreamer::EmitAbsValue(), llvm::MCContext::getAsmInfo(), llvm::MCStreamer::getContext(), llvm::MCAsmInfo::getExprForFDESymbol(), getSizeForEncoding(), and llvm::MCStreamer::isVerboseAsm().

static int getDataAlignmentFactor ( MCStreamer &  streamer )

static

Definition at line 808 of file MCDwarf.cpp.

References llvm::MCContext::getAsmInfo(), llvm::MCAsmInfo::getCalleeSaveStackSlotSize(), llvm::MCStreamer::getContext(), and llvm::MCAsmInfo::isStackGrowthDirectionUp().

static unsigned getSizeForEncoding ( MCStreamer &  streamer, unsigned  symbolEncoding  )

static

Definition at line 818 of file MCDwarf.cpp.

References llvm::dwarf::DW_EH_PE_absptr, llvm::dwarf::DW_EH_PE_sdata2, llvm::dwarf::DW_EH_PE_sdata4, llvm::dwarf::DW_EH_PE_sdata8, llvm::dwarf::DW_EH_PE_signed, llvm::dwarf::DW_EH_PE_udata2, llvm::dwarf::DW_EH_PE_udata4, llvm::dwarf::DW_EH_PE_udata8, llvm::format(), llvm::MCContext::getAsmInfo(), llvm::MCStreamer::getContext(), llvm::MCAsmInfo::getPointerSize(), and llvm_unreachable.

Referenced by EmitPersonality(), and EmitSymbol().

static const MCExpr* MakeStartMinusEndExpr ( const MCStreamer &  MCOS, const MCSymbol &  Start, const MCSymbol &  End, int  IntVal  )

inlinestatic

Definition at line 105 of file MCDwarf.cpp.

References llvm::MCConstantExpr::Create(), llvm::MCSymbolRefExpr::Create(), llvm::MCBinaryExpr::Create(), llvm::MCStreamer::getContext(), llvm::MCBinaryExpr::Sub, and llvm::MCSymbolRefExpr::VK_None.

Referenced by llvm::MCDwarfFileTable::EmitCU(), EmitGenDwarfAranges(), and EmitGenDwarfInfo().

static uint64_t ScaleAddrDelta ( MCContext &  Context, uint64_t  AddrDelta  )

inlinestatic

Definition at line 49 of file MCDwarf.cpp.

References llvm::MCContext::getAsmInfo(), and llvm::MCAsmInfo::getMinInstAlignment().

Referenced by llvm::MCDwarfLineAddr::Encode(), and llvm::MCDwarfFrameEmitter::EncodeAdvanceLoc().