Re: [PATCH] riscv: add correct as-options for assembly in modules

From: Ben Dooks
Date: Mon Jan 10 2022 - 11:11:57 EST


On 08/12/2021 19:26, Ben Dooks wrote:
When trying to load modules built for riscv which include assembly
the kernel loader errors with "unexpected relocation type 'R_RISCV_ALIGN'"
due to R_RISCV_ALIGN relocations being generated by the assembler.

In commit 7a8e7da42250138 ("RISC-V: Fixes to module loading") the
CFLAGS have -mno-relax added. This however does not get applied to
KBUILD_AFLAGS_MODULE so when a module builds a .S file, the -mno-relax
is not passed and the above error is seen. Fix it by adding the flags
'-Wa,-mno-relax' to KBUILD_AFLAGS_MODULE.

This may have been fixed in gcc, in:
https://github.com/gcc-mirror/gcc/commit/3b0a7d624e64eeb81e4d5e8c62c46d86ef521857

Can I just check this can be included in the next release?

--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius

https://www.codethink.co.uk/privacy.html