Method CheckRangeExecutable

FEXCore/Source/Interface/Core/Frontend.cpp:92–116

}

bool Decoder::CheckRangeExecutable(uint64_t Address, uint64_t Size) {
  // Treat FEX-internal X86 callbacks as always executable
  if (EntryPoint == CTX->X86CodeGen.CallbackReturn) {
    return true;
  }

  while (Address < ExecutableRangeBase || Address + Size > ExecutableRangeEnd) {
    auto RangeInfo = CTX->SyscallHandler->QueryGuestExecutableRange(Thread, Address);
    ExecutableRangeBase = RangeInfo.Base;
    ExecutableRangeEnd = RangeInfo.Base + RangeInfo.Size;
    ExecutableRangeWritable = RangeInfo.Writable;

    if (RangeInfo.Size == 0) {
      return false;
    }

    uint64_t RangeRemainingSize = ExecutableRangeEnd - Address;
    if (Size > RangeRemainingSize) {
      Size -= RangeRemainingSize;
      Address += RangeRemainingSize;
    }
  }

  return true;
}

uint8_t Decoder::ReadByte() {
  LOGMAN_THROW_A_FMT(InstructionSize < MAX_INST_SIZE, "Max instruction size exceeded!");