Re: [PATCH v2 6/6] selftests: Test the new RISC-V hwprobe interface

Evan Green
2023-02-09T18:45:31Z

On Mon, Feb 6, 2023 at 1:27 PM Mark Brown <broonie@kernel.org> wrote:
>
> On Mon, Feb 06, 2023 at 12:14:55PM -0800, Evan Green wrote:
>
> > +int main(int argc, char **argv)
> > +{
>
> > --- /dev/null
> > +++ b/tools/testing/selftests/riscv/libc.S
>
> > +.global _start
> > +_start:
> > +.option push
> > +.option norelax
> > + la gp, __global_pointer$
> > +.option pop
> > +
> > + la sp, stack
> > +
> > + la t0, heap
> > + la t1, brk
> > + REG_S t0, 0(t1)
> > +
> > + li a0, 0
> > + li a1, 0
> > +
> > + call main
>
> This looks like it's just a standard program entry but I don't speak
> RISC-V asm so I might be missing something. If that's the case might it
> make sense to use nolibc here?

I think I can just remove this file entirely along with -nostdlib, and
just let the compiler add in this glue.
-Evan