Re: bpf: Request to add -mcpu=v4 support for ARM/MIPS/NFP/POWERPC/RISCV/S390/SPARC/X86_32

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Alright, riscv64 is already being adapted, will be sent soon.

On 2023/8/20 9:41, Yonghong Song wrote:
Hi,

A new set of bpf insns have been recently added in llvm with flag
[-mcpu=v4](https://reviews.llvm.org/D144829). In the kernel,
x86_64 and arm64 have implemented -mcpu=v4 support:
  x86_64: https://lore.kernel.org/all/20230728011143.3710005-1-yonghong.song@xxxxxxxxx/   arm64: https://lore.kernel.org/bpf/20230815154158.717901-1-xukuohai@xxxxxxxxxxxxxxx/

The following arch's do not have -mcpu=v4 support yet:
   arm, mips, nfp, powerpc, riscv, sc90, sparc and x86_32

If you have a chance, could you take a look at what
x86_64/arm64 does and add support to the above arch'es?

Thanks!

Yonghong





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