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

[Bin Meng]

On Tue, Jul 13, 2021 at 2:28 AM Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx> wrote:
>
> When trying to load modules built for riscv which include assembly

nits: RISC-V

> 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 fix for gcc adds -mno-relax to the command line when building
> C files. However this was never applied to assembly flags, and gcc
> does no pass -mno-relax to gas when presented with a .S file.

does not pass

FYI

The GCC bug was fixed recently via:
https://github.com/gcc-mirror/gcc/commit/3b0a7d624e64eeb81e4d5e8c62c46d86ef521857

>
> The fix (other than making gcc always pass -mno-relax to gas) is
> to add -Wa,-mno-relax to gcc to make sure the as is invoked with
> the right options.
>
> Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
> ---
>  arch/riscv/Makefile | 1 +
>  1 file changed, 1 insertion(+)
>

Otherwise,
Reviewed-by: Bin Meng <bmeng.cn@xxxxxxxxx>