Re: [PATCH 4/5] RISC-V: Add native linux support.

Andreas Schwab
2018-10-29T08:50:26Z

On Okt 25 2018, Jim Wilson <jimw@sifive.com> wrote:

> On Thu, Oct 25, 2018 at 10:55 AM John Baldwin <jhb@freebsd.org> wrote:
>> Now that the MISA defaults to 0 if not present, would it better to just remove
>> this and not set it to 0 explicitly? The FreeBSD native target for RISC-V
>> doesn't set MISA to anything at all.
>
> There is still the issue of FP register size, which comes from MISA,
> unless perhaps we can get it from auxvec/hw-cap info. I was going to
> look into that latter, and if the auxvec/hw-cap stuff works, then
> remove the remaining MISA support in the riscv-linux-nat.c file.

Note you need commit 0ddc77556c to get a correct AT_HWCAP.

Andreas.

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Andreas Schwab, SUSE Labs, schwab@suse.de
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