Unsupported relocation type: R_X86_64_PLT32

[kernelrocks@gmail.com (Aleix Roca Nonell)]

(reminder just in case the email was missed!)

On Sat, Nov 03, 2018 at 02:16:53PM +0100, Aleix Roca Nonell wrote:
> On Sat, Nov 03, 2018 at 01:54:39PM +0100, Aleix Roca Nonell wrote:
> > Hi all!
> > 
> > In my attempt to write my first useful kernel patch, I'm tracking down
> > a possibly kernel regression on my laptop's wireless driver. I'm
> > trying to use git bisect to narrow down the problem and I'm having
> > trouble compiling a Linux kernel 4.14 from Linus tree in my Arch
> > Linux.
> > 
> > The error I'm getting is "Unsupported relocation type: R_X86_64_PLT32"
> > 
> > I have read about gcc enabling -fPIC by default from gcc-6 so I have
> > tried compiling with gcc-{8,7,5,4.9} with and without
> > "-fno-pic -no-pic" by running
> > 
> >   make CC="gcc-5 -fno-pic -no-pic"
> > 
> > with no luck. I was expecting those R_X86_64_PLT32 relocations not to
> > be generated with this options but there is something I have still not
> > understood.
> > 
> > I have been able to compile the kernel after applying greg's stable
> > tree patch [1] (and [2,3] for gcc-8) but the kernel refuses to boot.
> > 
> > Any help/comments on either the problem or the followed methodology will be
> > appreciated!
> > 
> > Thank you! :D
> > 
> > [1] - https://lore.kernel.org/patchwork/patch/892780/
> > [2] - https://lore.kernel.org/patchwork/patch/868613/
> > [3] - https://lore.kernel.org/patchwork/patch/934722/
> 
> Sorry, I meant "-fno-pie -no-pie" instead of "-fno-pic -no-pic"