DWARFUnwindTablePrinter.cpp File Reference

#include "llvm/DebugInfo/DWARF/DWARFUnwindTablePrinter.h"
#include "llvm/DebugInfo/DIContext.h"
#include "llvm/DebugInfo/DWARF/DWARFExpressionPrinter.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <cinttypes>
#include <cstdint>
#include <optional>

Go to the source code of this file.

Functions
static void	printRegister (raw_ostream &OS, DIDumpOptions DumpOpts, unsigned RegNum)
static void	printUnwindLocation (const UnwindLocation &UL, raw_ostream &OS, DIDumpOptions DumpOpts)
	Print an unwind location expression as text and use the register information if some is provided.
static void	printRegisterLocations (const RegisterLocations &RL, raw_ostream &OS, DIDumpOptions DumpOpts)
	Print all registers + locations that are currently defined in a register locations.
static void	printUnwindRow (const UnwindRow &Row, raw_ostream &OS, DIDumpOptions DumpOpts, unsigned IndentLevel)
	Print an UnwindRow to the stream.

Function Documentation

printRegister()

static void printRegister ( raw_ostream &  OS, DIDumpOptions  DumpOpts, unsigned  RegNum  )

static

Definition at line 23 of file DWARFUnwindTablePrinter.cpp.

References llvm::DIDumpOptions::GetNameForDWARFReg, llvm::DIDumpOptions::IsEH, OS, and RegName.

Referenced by printRegisterLocations(), and printUnwindLocation().

printRegisterLocations()

static void printRegisterLocations ( const RegisterLocations &  RL, raw_ostream &  OS, DIDumpOptions  DumpOpts  )

static

Print all registers + locations that are currently defined in a register locations.

Parameters

RL	the register locations to print.
OS	the stream to use for output.
MRI	register information that helps emit register names insteead of raw register numbers.
IsEH	true if the DWARF Call Frame Information is from .eh_frame instead of from .debug_frame. This is needed for register number conversion because some register numbers differ between the two sections for certain architectures like x86.

Definition at line 117 of file DWARFUnwindTablePrinter.cpp.

References llvm::First, llvm::dwarf::RegisterLocations::getRegisterLocation(), llvm::dwarf::RegisterLocations::getRegisters(), OS, printRegister(), and printUnwindLocation().

Referenced by llvm::dwarf::operator<<(), and printUnwindRow().

printUnwindLocation()

static void printUnwindLocation ( const UnwindLocation &  UL, raw_ostream &  OS, DIDumpOptions  DumpOpts  )

static

Print an unwind location expression as text and use the register information if some is provided.

Parameters

R	the unwind location to print.
OS	the stream to use for output.
MRI	register information that helps emit register names insteead of raw register numbers.
IsEH	true if the DWARF Call Frame Information is from .eh_frame instead of from .debug_frame. This is needed for register number conversion because some register numbers differ between the two sections for certain architectures like x86.

Definition at line 49 of file DWARFUnwindTablePrinter.cpp.

References llvm::dwarf::UnwindLocation::CFAPlusOffset, llvm::dwarf::UnwindLocation::Constant, llvm::dwarf::UnwindLocation::DWARFExpr, llvm::dwarf::UnwindLocation::getAddressSpace(), llvm::dwarf::UnwindLocation::getDereference(), llvm::dwarf::UnwindLocation::getDWARFExpressionBytes(), llvm::dwarf::UnwindLocation::getLocation(), llvm::dwarf::UnwindLocation::getOffset(), llvm::dwarf::UnwindLocation::getRegister(), llvm::dwarf::UnwindLocation::hasAddressSpace(), OS, llvm::printDwarfExpression(), printRegister(), llvm::dwarf::UnwindLocation::RegPlusOffset, llvm::dwarf::UnwindLocation::Same, llvm::dwarf::UnwindLocation::Undefined, and llvm::dwarf::UnwindLocation::Unspecified.

Referenced by llvm::dwarf::operator<<(), printRegisterLocations(), and printUnwindRow().

printUnwindRow()

static void printUnwindRow ( const UnwindRow &  Row, raw_ostream &  OS, DIDumpOptions  DumpOpts, unsigned  IndentLevel  )

static

Print an UnwindRow to the stream.

Parameters

Row	the UnwindRow to print.
OS	the stream to use for output.
MRI	register information that helps emit register names insteead of raw register numbers.
IsEH	true if the DWARF Call Frame Information is from .eh_frame instead of from .debug_frame. This is needed for register number conversion because some register numbers differ between the two sections for certain architectures like x86.
IndentLevel	specify the indent level as an integer. The UnwindRow will be output to the stream preceded by 2 * IndentLevel number of spaces.

Definition at line 155 of file DWARFUnwindTablePrinter.cpp.

References llvm::format(), llvm::raw_ostream::indent(), OS, printRegisterLocations(), and printUnwindLocation().

Referenced by llvm::dwarf::operator<<(), and llvm::dwarf::printUnwindTable().