Method CheckElfMagic

src/include/kernel_elf.hpp:132–138

* 检查 ELF magic number */

   * 检查 ELF magic number
   */
  [[nodiscard]] auto CheckElfMagic() const -> Expected<void> {
    if ((elf_[EI_MAG0] != ELFMAG0) || (elf_[EI_MAG1] != ELFMAG1) ||
        (elf_[EI_MAG2] != ELFMAG2) || (elf_[EI_MAG3] != ELFMAG3)) {
      return std::unexpected(Error(ErrorCode::kElfInvalidMagic));
    }
    return {};
  }

  /**
   * 检查 ELF class (32/64 bit)