How to confirm Kernel is support 64bit CPU

Author: Che-Yuan Tu

從 32 位元升級到 64 位元，Linux Kernel 重編需注意的地方與部份 lib64xxx 需要升級

• [結論] 參考設定下載
  • 今天編的 kernel 2.6.20 32 位元
  • lsi 學長之前在 Fedora Core 7 的 kernel 2.6.22 64 位元的 kernel config file.

• 64位元 linux_kernel key point
  • x86 64 支援
  • highmem 支援
  • elf32 模擬支援
  • ia32 模擬支援

• lib64xxx 視需求而安裝 (以Linux krg-server 2.6.20-krg為例)
  • lib64asound2 - ALSA library (64 bit)
  • lib64asound2-dev - ALSA library development files (64 bit)
  • lib64bz2-1.0 - high-quality block-sorting file compressor library - 64bit runtime
  • lib64bz2-dev - high-quality block-sorting file compressor library - 64bit development
  • lib64ffi4 - Foreign Function Interface library runtime (64bit)
  • lib64g2c0 - Runtime library for GNU Fortran 77 applications (64bit)
  • lib64gcc1 - GCC support library (64bit)
  • lib64gfortran1 - Runtime library for GNU Fortran applications (64bit)
  • lib64mudflap0 - GCC mudflap shared support libraries (64bit)
  • lib64ncurses5 - Shared libraries for terminal handling (64-bit)
  • lib64ncurses5-dev - Developer's libraries for ncurses (64-bit)
  • lib64objc1 - Runtime library for GNU Objective-C applications (64bit)
  • lib64readline5 - GNU readline and history libraries, run-time libraries (64-bit)
  • lib64readline5-dev - GNU readline and history libraries, development files (64-bit)
  • lib64ssp0 - GCC stack smashing protection library (64bit)
  • lib64stdc++6 - The GNU Standard C++ Library v3 (64bit)
  • lib64stdc++6-4.1-dbg - The GNU Standard C++ Library v3 (debugging files)
  • lib64z1 - compression library - 64 bit runtime
  • lib64z1-dev - compression library - 64 bit development
  • libc6-dev-amd64 - GNU C Library: 64bit Development Libraries for AMD64

• 開啟 64 Support options for example

  #
  # Automatically generated make config: don't edit
  # Linux kernel version: 2.6.18-1.2257
  # Mon Jan 14 20:30:31 2008
  #
  CONFIG_X86_64=y
  CONFIG_64BIT=y
  CONFIG_X86=y
   
  
  # Executable file formats / Emulations
  #
  CONFIG_BINFMT_ELF=y
  CONFIG_BINFMT_MISC=m
  CONFIG_IA32_EMULATION=y
  CONFIG_IA32_AOUT=y
  CONFIG_COMPAT=y
  CONFIG_SYSVIPC_COMPAT=y
  
  

最後感謝阿德學長提供許多寶貴意見!!