Re: [RFC PATCH 4/4] LoongArch: Remove -fno-jump-tables for objtool

[Xi Ruoyao]

On Fri, 2024-07-12 at 17:49 +0800, Xi Ruoyao wrote:
> On Fri, 2024-07-12 at 17:15 +0800, Tiezhu Yang wrote:
> > -ifdef CONFIG_OBJTOOL
> > -KBUILD_CFLAGS			+= -fno-jump-tables
> > -endif
> > +KBUILD_AFLAGS			+= $(call cc-option,-mannotate-tablejump) $(call cc-option,-Wa$(comma)-mannotate-tablejump)
> > +KBUILD_CFLAGS			+= $(call cc-option,-mannotate-tablejump) $(call cc-option,-Wa$(comma)-mannotate-tablejump)
> 
> KBUILD_AFLAGS isn't needed, and $(call cc-option,-Wa$(comma)-mannotate-
> tablejump) will always expand to nothing because the assembler does not
> have -mannotate-tablejump.
> 
> The assembler never creates a jump table itself.

BTW have you discussed with Lulu about the -mannotate-tablejump patch? 
I guess maybe an intra-Loongson discussion would be helpful.

-- 
Xi Ruoyao <xry111@xxxxxxxxxxx>
School of Aerospace Science and Technology, Xidian University