Re: [PATCH v2 bpf-next 01/13] bpf: x86: Factor out emission of ModR/M for *(reg + off)

From: Brendan Jackman
Date: Wed Dec 02 2020 - 05:53:51 EST


Tue, Dec 01, 2020 at 09:50:00PM -0800, Alexei Starovoitov wrote:
> On Tue, Dec 1, 2020 at 4:14 AM Brendan Jackman <jackmanb@xxxxxxxxxx> wrote:
> >
> > On Sat, Nov 28, 2020 at 05:15:52PM -0800, Alexei Starovoitov wrote:
> > > On Fri, Nov 27, 2020 at 05:57:26PM +0000, Brendan Jackman wrote:
> > > > +/* Emit the ModR/M byte for addressing *(r1 + off) and r2 */
> > > > +static void emit_modrm_dstoff(u8 **pprog, u32 r1, u32 r2, int off)
> > >
> > > same concern as in the another patch. If you could avoid intel's puzzling names
> > > like above it will make reviewing the patch easier.
> >
> > In this case there is actually a call like
> >
> > emit_modrm_dstoff(&prog, src_reg, dst_reg)
>
> emit_insn_prefix() ?

Ah sorry, I thought you were talking about the _arg_ names.

This isn't a prefix, but emit_insn_suffix sounds good.