RE: IP28: "Inconsistent ISA" messages during kernel build

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Markos Chandras <Markos.Chandras@xxxxxxxxxx> writes:
> On 05/12/2015 04:09 AM, Joshua Kinard wrote:
> >
> > Has anyone tried to build an IP28 kernel lately?  I've been getting
> > quite a few warnings out of the linker regarding e_flags and the new
> .MIPS.abiflags stuff.
> >  Not seen it on the other SGI platforms, so I am assuming this has
> > something to do with what flags are passed to the compiler/linker.
> >
> > mips64-unknown-linux-gnu-ld: fs/ext4/symlink.o: warning: Inconsistent
> > ISA between e_flags and .MIPS.abiflags
> > mips64-unknown-linux-gnu-ld: fs/ext4/symlink.o: warning: Inconsistent
> > ISA extensions between e_flags and .MIPS.abiflags
> >
> > Seeing this on a build of 4.0.2 based off of a 20150418 checkout from
> git.
> >
> > --J
> >
> Hi,
> 
> I presume you are using binutils >= 2.25? I have seen this problem in my
> local build tests as well and I discussed this with Matthew (now on CC).
> It seems it's an 'innocent' warning added to binutils 2.25 but I am not
> sure if this is now fixed or not. Matthew might be able to provide more
> information.

I don't really know what an IP28 kernel is. What is the -march for this?
There is an issue with -march=xlp as the XLP is marked as an XLR in the
e_flags which is a mips64 but the xlp is a mips64r2 which is correctly
annotated as such in the .MIPS.abiflags. I haven't quite figured out what
to do about this yet.

Thanks,
Matthew





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