Re: [PATCH v3 16/16] objtool,x86: Rewrite retpoline thunk calls

From: Peter Zijlstra
Date: Mon Jun 07 2021 - 14:47:42 EST


On Mon, Jun 07, 2021 at 11:27:27AM -0700, Fāng-ruì Sòng wrote:
> On Mon, Jun 7, 2021 at 11:19 AM Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> >
> > On Sat, Jun 05, 2021 at 06:58:39PM -0700, Fāng-ruì Sòng wrote:
> >
> > > You may use https://github.com/llvm/llvm-project/blob/main/llvm/tools/llvm-objcopy/ELF/Object.cpp#L843
> > > as a reference.
> >
> > BTW, Error::success(), is that a successfull error, or an erroneous
> > success? :-))
>
> A success (no error). Error::success() is a factory member function.
> Its purpose is to create an "unchecked" Error instance and require the
> caller to explicitly check for the error state.

I got that (see the smily face), but it reads really weird when you're
not used to it.