Building a toolchain (3)

• Many decisions must be made when building a toolchain

• Choosing the C library

• Choosing the version of the different components

• Choosing the configuration of the toolchain

• • Which ABI should be used ? Toolchains for the ARM architecture for example, can generate binaries using the OABI (Old ABI) or the EABI (Enhanced ABI), that are incompatible
  • Should the toolchain support software floating point, or does the hardware support floating point operations ?
  • Should the toolchain support locales, IPv6, or other specific features ?