Re: [PATCH v2] LoongArch: vDSO: Emit GNU_EH_FRAME correctly

[Huacai Chen]

On Fri, Feb 27, 2026 at 5:57 PM Xi Ruoyao <xry111@xxxxxxxxxxx> wrote:
>
> On Fri, 2026-02-27 at 16:58 +0800, Huacai Chen wrote:
>
> /* snip */
>
> > > diff --git a/arch/loongarch/include/asm/sigframe.h b/arch/loongarch/include/asm/sigframe.h
> > > new file mode 100644
> > > index 000000000000..59db3de6db85
> > > --- /dev/null
> > > +++ b/arch/loongarch/include/asm/sigframe.h
> > > @@ -0,0 +1,12 @@
> > > +/* SPDX-License-Identifier: GPL-2.0+ */
> > > +/*
> > > + * Separated from arch/loongarch/kernel/signal.c.
> > I think this is also unnecessary.
>
> Will remove this comment.
>
> /* snip */
>
> > > +        * This is also the reason we don't use SYM_FUNC_START.
> > > +        */
> > > +       nop
> > > +SYM_START(__vdso_rt_sigreturn, SYM_L_GLOBAL, SYM_A_ALIGN)
> > Is it possible to define SYM_SIGFUNC_START/SYM_SIGFUNC_END in
> > linkage.h, and then use them here?
>
> How about SYM_FUNC_{START,END}_NOCFI instead?
Of course I don't know how to name them, I just want to define a
wrapper to contain all .cfi_xxxx in this patch.

Huacai

> >
>
> --
> Xi Ruoyao <xry111@xxxxxxxxxxx>
>