查看“Buildroot TargetOptions”的源代码

=配置单板架构=
Target options  ---> 目标板的配置
  Target Architecture：目标架构，这里选择 ARM(little endian)，ARM小端模式
  Target Binary Format：二进制格式，为 ELF
  Target Architecture Variant：架构变体为 arm920t，内核类型
  Target ABI：应用程序二进制接口，为EABI
  Floating point strategy：浮点数的策略，选择为 Soft float
  ARM instruction set：arm 汇编指令集，选择  ARM

==cortex-A8配置==
  Target Architecture (ARM (little endian))  --->
  Target Binary Format (ELF)  --->
  Target Architecture Variant (cortex-A8)  --->
  Target ABI (EABIhf)  --->
  Floating point strategy (VFPv3-D16)  --->
  ARM instruction set (ARM)  --->

==cortex-A9配置==
      Target Architecture (ARM (little endian))  --->
      Target Binary Format (ELF)  --->
      Target Architecture Variant (cortex-A9)  --->
  [*] Enable NEON SIMD extension support
  [*] Enable VFP extension support
      Target ABI (EABIhf)  --->
      Floating point strategy (VFPv3-D16)  --->
      ARM instruction set (ARM)  --->
=参考链接=
* 浮点类型介绍 https://wiki.debian.org/ArmHardFloatPort/VfpComparison
* 浮点类型介绍 https://embeddedartistry.com/blog/2017/10/9/r1q7pksku2q3gww9rpqef0dnskphtc
* arm官当NEON解释 https://developer.arm.com/technologies/neon
[[Category:buildroot]]