[PATCH 1/4] tools/perf/arch/riscv: record registers needed for --call-graph=dwarf

[Edwin Török]

On Tue, 2021-08-03 at 21:22 -0700, Palmer Dabbelt wrote:
> On Mon, 05 Jul 2021 16:25:21 PDT (-0700), edwin at etorok.net wrote:
> > For libdw-based callgraph sampling to work we need to sample
> > registers.
> > 
> > Tested on HiFive Unmatched with a trunk version of OCaml:
> 
> These generally LGTM, but I don't have patch #2.

PATCH 2/4 is here:
https://lore.kernel.org/linux-riscv/20210705232524.4024832-3-edwin@etorok.net/
https://patchwork.kernel.org/project/linux-riscv/patch/20210705232524.4024832-3-edwin@etorok.net/

>   Sometimes that means 
> they're just not targeted at the RISC-V tree, which is fine with me but
> I'm happy to take some time to look closer and take them if that's what
> you're looking for.
> A cover letter can be a good bet, to describe this sort of stuff.

Thanks for taking a look, I'll try to ensure that RISC-V maintainers
are CC-ed on the entire series in the future (I used
scripts/get_maintainer.pl which might've been too selective).

All patches should be on the RISC-V mailing list though, cover letter
included:
https://lore.kernel.org/linux-riscv/20210705232524.4024832-1-edwin@etorok.net/T/#t
https://patchwork.kernel.org/project/linux-riscv/list/?series=511107

PATCH 2/4 is patching tools/perf/check-headers.sh, so although
technically outside of the RISC-V specific tree it actually adds one
line to include the riscv headers, so if you could take all 4 patches
into your tree that'd be great.

Thanks,
--Edwin