Re: linux-next: Tree for May 15 (several RV64 build errors)

[Palmer Dabbelt]

On Tue, 23 May 2023 17:22:20 PDT (-0700), rdunlap@xxxxxxxxxxxxx wrote:
> On 5/23/23 06:07, Alexandre Ghiti wrote:
> > On 23/05/2023 04:28, Randy Dunlap wrote:
> > > Hi,
> > >
> > > On 5/19/23 03:42, Alexandre Ghiti wrote:
> > > > > > /opt/crosstool/gcc-12.2.0-nolibc/riscv64-linux/bin/riscv64-linux-ld: section .data LMA [000000000041a000,00000000075bffd7] overlaps section .text LMA [00000000000f09d4,00000000033562ab]
> > > > > > /opt/crosstool/gcc-12.2.0-nolibc/riscv64-linux/bin/riscv64-linux-ld: section .init.pi.text LMA [00000000033562ac,0000000003359137] overlaps section .data LMA [000000000041a000,00000000075bffd7]
> > > > >
> > > > > I'll check this one too which seems to be related to kernel/pi introduction.
> > > >
> > > > Thanks to Bjorn: this is caused by XIP_KERNEL, which is known to have limited size, hence the overlap, so no fix for this one. Is there a way to exclude this config from randconfig?
> > > Does this mean exclude XIP_KERNEL or something else from randconfigs?
> >
> >
> > I meant excluding XIP_KERNEL from randconfigs: it has very strict constraints regarding what can/can't be enabled then it needs human intervention to make sure the error above does not happen. So I would not bother testing this in randconfigs if possible.
>
> I can exclude it from my randconfig builds, but I don't know of a way to exclude it from randconfig builds in general (i.e., for everyone).

Arnd had suggested a trick related to menus that would result in 
randconfig never enabling some config.  It'd suggested for 
CONFIG_NONPORTABLE, but we didn't use it because it'd reduce randconfig 
coverage.

Maybe we should add a CONFIG_VERYSPECIAL of some sort and hide things 
like XIP behind it (maybe M-mode too)?