Home/ Questions/Q 4615988
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-22T01:55:06+00:00

When you build a gcc toolchain there is the possibility to build it as

  • 0

When you build a gcc toolchain there is the possibility to build it as arm-elf or as arm-none-eabi, but what is the difference?

I use the eabi today, but that is just since everyone else seem to do that… but since that is a really bad argument, it would be really nice to understand the difference.

Note: This toolchain will crosscompile code for Cortex-M3 based mcu:s like the stm32.

Thanks

Some links:

EABI:

ELF:

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Each architecture or architecture/os couple has an ABI. The ABI (Application binary Interface) describes how functions should be called, syscalls numbers, arguments passed, which registers can be used …

    The abi describes how the compiler should generate the assembly.

    If you use only assembler you don’t need to care about the ABI.

    arm-elf and arm-none-eabi just use two versions of the Arm ABI. The eabi toolchain uses a newer revision, but could also be called arm-elf-eabi, as it generates elf too.

    • 0