MCWin64EH.cpp File Reference

#include "llvm/MC/MCWin64EH.h"
#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCObjectStreamer.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/Win64EH.h"

Include dependency graph for MCWin64EH.cpp:

Go to the source code of this file.

Functions
static uint8_t	CountOfUnwindCodes (std::vector< WinEH::Instruction > &Insns)
static void	EmitAbsDifference (MCStreamer &Streamer, const MCSymbol *LHS, const MCSymbol *RHS)
static void	EmitUnwindCode (MCStreamer &streamer, const MCSymbol *begin, WinEH::Instruction &inst)
static void	EmitSymbolRefWithOfs (MCStreamer &streamer, const MCSymbol *Base, const MCSymbol *Other)
static void	EmitRuntimeFunction (MCStreamer &streamer, const WinEH::FrameInfo *info)
static void	EmitUnwindInfo (MCStreamer &streamer, WinEH::FrameInfo *info)
static int64_t	GetAbsDifference (MCStreamer &Streamer, const MCSymbol *LHS, const MCSymbol *RHS)
static uint32_t	ARM64CountOfUnwindCodes (const std::vector< WinEH::Instruction > &Insns)
static void	ARM64EmitUnwindCode (MCStreamer &streamer, const MCSymbol *begin, WinEH::Instruction &inst)
static MCSymbol *	FindMatchingEpilog (const std::vector< WinEH::Instruction > &EpilogInstrs, const std::vector< MCSymbol *> &Epilogs, const WinEH::FrameInfo *info)
static void	ARM64EmitUnwindInfo (MCStreamer &streamer, WinEH::FrameInfo *info)
static void	ARM64EmitRuntimeFunction (MCStreamer &streamer, const WinEH::FrameInfo *info)

Function Documentation

ARM64CountOfUnwindCodes()

static uint32_t ARM64CountOfUnwindCodes ( const std::vector< WinEH::Instruction > &  Insns )

static

Definition at line 265 of file MCWin64EH.cpp.

References I, llvm_unreachable, llvm::Win64EH::UOP_AddFP, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocMedium, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_Nop, llvm::Win64EH::UOP_SaveFPLR, llvm::Win64EH::UOP_SaveFPLRX, llvm::Win64EH::UOP_SaveFReg, llvm::Win64EH::UOP_SaveFRegP, llvm::Win64EH::UOP_SaveFRegPX, llvm::Win64EH::UOP_SaveFRegX, llvm::Win64EH::UOP_SaveReg, llvm::Win64EH::UOP_SaveRegP, llvm::Win64EH::UOP_SaveRegPX, llvm::Win64EH::UOP_SaveRegX, and llvm::Win64EH::UOP_SetFP.

Referenced by ARM64EmitUnwindInfo().

ARM64EmitRuntimeFunction()

static void ARM64EmitRuntimeFunction ( MCStreamer &  streamer, const WinEH::FrameInfo *  info  )

static

Definition at line 609 of file MCWin64EH.cpp.

References llvm::WinEH::FrameInfo::Begin, llvm::MCSymbolRefExpr::create(), EmitSymbolRefWithOfs(), llvm::MCStreamer::EmitValue(), llvm::MCStreamer::EmitValueToAlignment(), llvm::WinEH::FrameInfo::Function, llvm::MCStreamer::getContext(), llvm::WinEH::FrameInfo::Symbol, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by llvm::Win64EH::ARM64UnwindEmitter::Emit().

ARM64EmitUnwindCode()

static void ARM64EmitUnwindCode ( MCStreamer &  streamer, const MCSymbol *  begin, WinEH::Instruction &  inst  )

static

Definition at line 329 of file MCWin64EH.cpp.

References assert(), llvm::MCStreamer::EmitIntValue(), llvm_unreachable, llvm::WinEH::Instruction::Offset, llvm::WinEH::Instruction::Operation, llvm::WinEH::Instruction::Register, llvm::Win64EH::UOP_AddFP, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocMedium, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_Nop, llvm::Win64EH::UOP_SaveFPLR, llvm::Win64EH::UOP_SaveFPLRX, llvm::Win64EH::UOP_SaveFReg, llvm::Win64EH::UOP_SaveFRegP, llvm::Win64EH::UOP_SaveFRegPX, llvm::Win64EH::UOP_SaveFRegX, llvm::Win64EH::UOP_SaveReg, llvm::Win64EH::UOP_SaveRegP, llvm::Win64EH::UOP_SaveRegPX, llvm::Win64EH::UOP_SaveRegX, and llvm::Win64EH::UOP_SetFP.

Referenced by ARM64EmitUnwindInfo().

ARM64EmitUnwindInfo()

static void ARM64EmitUnwindInfo ( MCStreamer &  streamer, WinEH::FrameInfo *  info  )

static

Definition at line 490 of file MCWin64EH.cpp.

References ARM64CountOfUnwindCodes(), ARM64EmitUnwindCode(), assert(), llvm::WinEH::FrameInfo::Begin, llvm::MCSymbolRefExpr::create(), llvm::MCContext::createTempSymbol(), llvm::MCStreamer::EmitIntValue(), llvm::MCStreamer::EmitLabel(), llvm::MCStreamer::EmitValue(), llvm::MCStreamer::EmitValueToAlignment(), llvm::MapVector< KeyT, ValueT, MapType, VectorType >::end(), llvm::WinEH::FrameInfo::EpilogMap, llvm::WinEH::FrameInfo::ExceptionHandler, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::find(), FindMatchingEpilog(), llvm::WinEH::FrameInfo::FuncletOrFuncEnd, GetAbsDifference(), llvm::MCStreamer::getContext(), llvm::WinEH::FrameInfo::HandlesExceptions, I, llvm::WinEH::FrameInfo::Instructions, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::lookup(), llvm::report_fatal_error(), llvm::WinEH::FrameInfo::Symbol, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by llvm::Win64EH::ARM64UnwindEmitter::Emit(), and llvm::Win64EH::ARM64UnwindEmitter::EmitUnwindInfo().

CountOfUnwindCodes()

static uint8_t CountOfUnwindCodes ( std::vector< WinEH::Instruction > &  Insns )

static

Definition at line 25 of file MCWin64EH.cpp.

References I, llvm_unreachable, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_PushMachFrame, llvm::Win64EH::UOP_PushNonVol, llvm::Win64EH::UOP_SaveNonVol, llvm::Win64EH::UOP_SaveNonVolBig, llvm::Win64EH::UOP_SaveXMM128, llvm::Win64EH::UOP_SaveXMM128Big, and llvm::Win64EH::UOP_SetFPReg.

Referenced by EmitUnwindInfo().

EmitAbsDifference()

static void EmitAbsDifference ( MCStreamer &  Streamer, const MCSymbol *  LHS, const MCSymbol *  RHS  )

static

Definition at line 53 of file MCWin64EH.cpp.

References Context, llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createSub(), llvm::MCStreamer::EmitValue(), and llvm::MCStreamer::getContext().

Referenced by EmitUnwindCode(), and EmitUnwindInfo().

EmitRuntimeFunction()

static void EmitRuntimeFunction ( MCStreamer &  streamer, const WinEH::FrameInfo *  info  )

static

Definition at line 143 of file MCWin64EH.cpp.

References llvm::WinEH::FrameInfo::Begin, llvm::MCSymbolRefExpr::create(), EmitSymbolRefWithOfs(), llvm::MCStreamer::EmitValue(), llvm::MCStreamer::EmitValueToAlignment(), llvm::WinEH::FrameInfo::End, llvm::WinEH::FrameInfo::Function, llvm::MCStreamer::getContext(), llvm::WinEH::FrameInfo::Symbol, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by llvm::Win64EH::UnwindEmitter::Emit(), and EmitUnwindInfo().

EmitSymbolRefWithOfs()

static void EmitSymbolRefWithOfs ( MCStreamer &  streamer, const MCSymbol *  Base, const MCSymbol *  Other  )

static

Definition at line 130 of file MCWin64EH.cpp.

References Context, llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createAdd(), llvm::MCBinaryExpr::createSub(), llvm::MCStreamer::EmitValue(), llvm::MCStreamer::getContext(), and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by ARM64EmitRuntimeFunction(), and EmitRuntimeFunction().

EmitUnwindCode()

static void EmitUnwindCode ( MCStreamer &  streamer, const MCSymbol *  begin, WinEH::Instruction &  inst  )

static

Definition at line 62 of file MCWin64EH.cpp.

References EmitAbsDifference(), llvm::MCStreamer::EmitIntValue(), llvm::WinEH::Instruction::Label, llvm_unreachable, llvm::WinEH::Instruction::Offset, llvm::WinEH::Instruction::Operation, llvm::WinEH::Instruction::Register, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_PushMachFrame, llvm::Win64EH::UOP_PushNonVol, llvm::Win64EH::UOP_SaveNonVol, llvm::Win64EH::UOP_SaveNonVolBig, llvm::Win64EH::UOP_SaveXMM128, llvm::Win64EH::UOP_SaveXMM128Big, and llvm::Win64EH::UOP_SetFPReg.

Referenced by EmitUnwindInfo().

EmitUnwindInfo()

static void EmitUnwindInfo ( MCStreamer &  streamer, WinEH::FrameInfo *  info  )

static

Definition at line 155 of file MCWin64EH.cpp.

References assert(), llvm::WinEH::FrameInfo::Begin, llvm::WinEH::FrameInfo::ChainedParent, CountOfUnwindCodes(), llvm::MCSymbolRefExpr::create(), llvm::MCContext::createTempSymbol(), EmitAbsDifference(), llvm::MCStreamer::EmitIntValue(), llvm::MCStreamer::EmitLabel(), EmitRuntimeFunction(), EmitUnwindCode(), llvm::MCStreamer::EmitValue(), llvm::MCStreamer::EmitValueToAlignment(), llvm::WinEH::FrameInfo::ExceptionHandler, llvm::MCStreamer::getContext(), llvm::WinEH::FrameInfo::HandlesExceptions, llvm::WinEH::FrameInfo::HandlesUnwind, llvm::WinEH::FrameInfo::Instructions, llvm::WinEH::FrameInfo::LastFrameInst, llvm::WinEH::Instruction::Offset, llvm::WinEH::Instruction::Operation, llvm::WinEH::FrameInfo::PrologEnd, llvm::WinEH::Instruction::Register, llvm::WinEH::FrameInfo::Symbol, llvm::Win64EH::UNW_ChainInfo, llvm::Win64EH::UNW_ExceptionHandler, llvm::Win64EH::UNW_TerminateHandler, llvm::Win64EH::UOP_SetFPReg, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by llvm::Win64EH::UnwindEmitter::Emit(), and llvm::Win64EH::UnwindEmitter::EmitUnwindInfo().

FindMatchingEpilog()

static MCSymbol* FindMatchingEpilog ( const std::vector< WinEH::Instruction > &  EpilogInstrs, const std::vector< MCSymbol *> &  Epilogs, const WinEH::FrameInfo *  info  )

static

Definition at line 461 of file MCWin64EH.cpp.

References assert(), llvm::WinEH::FrameInfo::EpilogMap, llvm::Match, Operation, and Register.

Referenced by ARM64EmitUnwindInfo().

GetAbsDifference()

static int64_t GetAbsDifference ( MCStreamer &  Streamer, const MCSymbol *  LHS, const MCSymbol *  RHS  )

static

Definition at line 252 of file MCWin64EH.cpp.

References Context, llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createSub(), llvm::MCObjectStreamer::getAssembler(), and llvm::MCStreamer::getContext().

Referenced by ARM64EmitUnwindInfo().