d4257fbbba
Fix a couple minor details in the existing logic for calculating saved registers and stack adjustment. Synthesize the corresponding prologues and epilogues and print them. (This supersedes the previous printout of one single list of stored registers; as there's lots of minor nuance differences in how registers are pushed/popped in various corner cases, it's better to print the full prologue/epilogue instead of trying to condense it into one single list.) Print the raw values of the fields Reg, R, L (LinkRegister) and C (Chaining) instead of only printing the derived values. Differential Revision: https://reviews.llvm.org/D125644
190 lines
9.0 KiB
C++
190 lines
9.0 KiB
C++
//===--- ARMWinEHPrinter.h - Windows on ARM Unwind Information Printer ----===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_READOBJ_ARMWINEHPRINTER_H
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#define LLVM_TOOLS_LLVM_READOBJ_ARMWINEHPRINTER_H
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#include "llvm/Object/COFF.h"
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#include "llvm/Support/ErrorOr.h"
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#include "llvm/Support/ScopedPrinter.h"
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namespace llvm {
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namespace ARM {
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namespace WinEH {
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class RuntimeFunction;
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class RuntimeFunctionARM64;
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class Decoder {
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static const size_t PDataEntrySize;
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ScopedPrinter &SW;
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raw_ostream &OS;
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bool isAArch64;
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struct RingEntry {
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uint8_t Mask;
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uint8_t Value;
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uint8_t Length;
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bool (Decoder::*Routine)(const uint8_t *, unsigned &, unsigned, bool);
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};
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static const RingEntry Ring[];
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static const RingEntry Ring64[];
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bool opcode_0xxxxxxx(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_10Lxxxxx(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_1100xxxx(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11010Lxx(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11011Lxx(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11100xxx(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_111010xx(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_1110110L(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11101110(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11101111(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11110101(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11110110(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11110111(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11111000(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11111001(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11111010(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11111011(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11111100(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11111101(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11111110(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_11111111(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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// ARM64 unwind codes start here.
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bool opcode_alloc_s(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
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bool Prologue);
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bool opcode_save_r19r20_x(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_fplr(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_fplr_x(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_alloc_m(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
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bool Prologue);
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bool opcode_save_regp(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_regp_x(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_reg(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_reg_x(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_lrpair(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_fregp(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_fregp_x(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_freg(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_save_freg_x(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_alloc_l(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
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bool Prologue);
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bool opcode_setfp(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
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bool Prologue);
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bool opcode_addfp(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
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bool Prologue);
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bool opcode_nop(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
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bool Prologue);
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bool opcode_end(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
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bool Prologue);
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bool opcode_end_c(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
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bool Prologue);
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bool opcode_save_next(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_trap_frame(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_machine_frame(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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bool opcode_context(const uint8_t *Opcodes, unsigned &Offset, unsigned Length,
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bool Prologue);
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bool opcode_clear_unwound_to_call(const uint8_t *Opcodes, unsigned &Offset,
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unsigned Length, bool Prologue);
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void decodeOpcodes(ArrayRef<uint8_t> Opcodes, unsigned Offset,
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bool Prologue);
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void printGPRMask(uint16_t Mask);
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void printVFPMask(uint32_t Mask);
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ErrorOr<object::SectionRef>
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getSectionContaining(const object::COFFObjectFile &COFF, uint64_t Address);
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ErrorOr<object::SymbolRef>
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getSymbol(const object::COFFObjectFile &COFF, uint64_t Address,
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bool FunctionOnly = false);
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ErrorOr<object::SymbolRef>
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getRelocatedSymbol(const object::COFFObjectFile &COFF,
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const object::SectionRef &Section, uint64_t Offset);
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ErrorOr<object::SymbolRef>
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getSymbolForLocation(const object::COFFObjectFile &COFF,
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const object::SectionRef &Section,
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uint64_t OffsetInSection, uint64_t ImmediateOffset,
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uint64_t &SymbolAddress, uint64_t &SymbolOffset,
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bool FunctionOnly = false);
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object::SymbolRef getPreferredSymbol(const object::COFFObjectFile &COFF,
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object::SymbolRef Sym,
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uint64_t &SymbolOffset);
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bool dumpXDataRecord(const object::COFFObjectFile &COFF,
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const object::SectionRef &Section,
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uint64_t FunctionAddress, uint64_t VA);
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bool dumpUnpackedEntry(const object::COFFObjectFile &COFF,
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const object::SectionRef Section, uint64_t Offset,
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unsigned Index, const RuntimeFunction &Entry);
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bool dumpPackedEntry(const object::COFFObjectFile &COFF,
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const object::SectionRef Section, uint64_t Offset,
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unsigned Index, const RuntimeFunction &Entry);
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bool dumpPackedARM64Entry(const object::COFFObjectFile &COFF,
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const object::SectionRef Section, uint64_t Offset,
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unsigned Index, const RuntimeFunctionARM64 &Entry);
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bool dumpProcedureDataEntry(const object::COFFObjectFile &COFF,
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const object::SectionRef Section, unsigned Entry,
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ArrayRef<uint8_t> Contents);
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void dumpProcedureData(const object::COFFObjectFile &COFF,
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const object::SectionRef Section);
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public:
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Decoder(ScopedPrinter &SW, bool isAArch64) : SW(SW),
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OS(SW.getOStream()),
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isAArch64(isAArch64) {}
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Error dumpProcedureData(const object::COFFObjectFile &COFF);
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};
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}
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}
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}
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#endif
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