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ARMWinEHPrinter.h
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//===--- ARMWinEHPrinter.h - Windows on ARM Unwind Information Printer ----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVM_READOBJ_ARMWINEHPRINTER_H
#define LLVM_TOOLS_LLVM_READOBJ_ARMWINEHPRINTER_H
#include "llvm/Object/COFF.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/ScopedPrinter.h"
namespace llvm {
namespace ARM {
namespace WinEH {
class RuntimeFunction;
class RuntimeFunctionARM64;
class Decoder {
static const size_t PDataEntrySize;
ScopedPrinter &SW;
raw_ostream &OS;
bool isAArch64;
struct RingEntry {
uint8_t Mask;
uint8_t Value;
uint8_t Length;
bool (Decoder::*Routine)(const uint8_t *, unsigned &, unsigned, bool);
};
static const RingEntry Ring[];
static const RingEntry Ring64[];
bool opcode_0xxxxxxx(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_10Lxxxxx(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_1100xxxx(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11010Lxx(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11011Lxx(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11100xxx(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_111010xx(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_1110110L(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11101110(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11101111(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11110101(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11110110(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11110111(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11111000(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11111001(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11111010(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11111011(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11111100(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11111101(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11111110(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_11111111(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
// ARM64 unwind codes start here.
bool opcode_alloc_s(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
bool Prologue);
bool opcode_save_r19r20_x(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_fplr(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_fplr_x(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_alloc_m(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
bool Prologue);
bool opcode_save_regp(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_regp_x(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_reg(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_reg_x(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_lrpair(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_fregp(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_fregp_x(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_freg(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_save_freg_x(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_alloc_l(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
bool Prologue);
bool opcode_setfp(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
bool Prologue);
bool opcode_addfp(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
bool Prologue);
bool opcode_nop(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
bool Prologue);
bool opcode_end(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
bool Prologue);
bool opcode_end_c(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
bool Prologue);
bool opcode_save_next(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_trap_frame(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_machine_frame(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
bool opcode_context(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
bool Prologue);
bool opcode_clear_unwound_to_call(const uint8_t *Opcodes, unsigned &Offset,
unsigned Length, bool Prologue);
void decodeOpcodes(ArrayRef<uint8_t> Opcodes, unsigned Offset,
bool Prologue);
void printGPRMask(uint16_t Mask);
void printVFPMask(uint32_t Mask);
ErrorOr<object::SectionRef>
getSectionContaining(const object::COFFObjectFile &COFF, uint64_t Address);
ErrorOr<object::SymbolRef>
getSymbol(const object::COFFObjectFile &COFF, uint64_t Address,
bool FunctionOnly = false);
ErrorOr<object::SymbolRef>
getRelocatedSymbol(const object::COFFObjectFile &COFF,
const object::SectionRef &Section, uint64_t Offset);
ErrorOr<object::SymbolRef>
getSymbolForLocation(const object::COFFObjectFile &COFF,
const object::SectionRef &Section,
uint64_t OffsetInSection, uint64_t ImmediateOffset,
uint64_t &SymbolAddress, uint64_t &SymbolOffset,
bool FunctionOnly = false);
object::SymbolRef getPreferredSymbol(const object::COFFObjectFile &COFF,
object::SymbolRef Sym,
uint64_t &SymbolOffset);
bool dumpXDataRecord(const object::COFFObjectFile &COFF,
const object::SectionRef &Section,
uint64_t FunctionAddress, uint64_t VA);
bool dumpUnpackedEntry(const object::COFFObjectFile &COFF,
const object::SectionRef Section, uint64_t Offset,
unsigned Index, const RuntimeFunction &Entry);
bool dumpPackedEntry(const object::COFFObjectFile &COFF,
const object::SectionRef Section, uint64_t Offset,
unsigned Index, const RuntimeFunction &Entry);
bool dumpPackedARM64Entry(const object::COFFObjectFile &COFF,
const object::SectionRef Section, uint64_t Offset,
unsigned Index, const RuntimeFunctionARM64 &Entry);
bool dumpProcedureDataEntry(const object::COFFObjectFile &COFF,
const object::SectionRef Section, unsigned Entry,
ArrayRef<uint8_t> Contents);
void dumpProcedureData(const object::COFFObjectFile &COFF,
const object::SectionRef Section);
public:
Decoder(ScopedPrinter &SW, bool isAArch64) : SW(SW),
OS(SW.getOStream()),
isAArch64(isAArch64) {}
Error dumpProcedureData(const object::COFFObjectFile &COFF);
};
}
}
}
#endif