XLR Linux/MIPS kernel build error

XLR Linux/MIPS kernel build error

[Ralf Baechle]

I'm getting a build error with gcc 4.6.0 and binutils 2.21:

[...]
  AS      arch/mips/kernel/entry.o
  AS      arch/mips/kernel/genex.o
/home/ralf/src/linux/upstream-linus/arch/mips/kernel/genex.S: Assembler messages:
/home/ralf/src/linux/upstream-linus/arch/mips/kernel/genex.S:524: Internal error!
Assertion failure in append_insn at ../../gas/config/tc-mips.c line 2867.
Please report this bug.
make[4]: *** [arch/mips/kernel/genex.o] Error 1
make[3]: *** [arch/mips/kernel] Error 2
make[2]: *** [arch/mips] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2
make: Leaving directory `/home/ralf/src/linux/obj/nlm_xlr-build'

Not sure what's blowin up there and I haven't had a chance to try other
binutils versions yet.  Is this something known?  None of the other MIPS
kernel defconfigs is encountering this issue.

  Ralf

Re: XLR Linux/MIPS kernel build error

[Nick Clifton]

Hi Ralf,

>    AS      arch/mips/kernel/genex.o
> /home/ralf/src/linux/upstream-linus/arch/mips/kernel/genex.S: Assembler messages:
> /home/ralf/src/linux/upstream-linus/arch/mips/kernel/genex.S:524: Internal error!
> Assertion failure in append_insn at ../../gas/config/tc-mips.c line 2867.

> Not sure what's blowin up there and I haven't had a chance to try other
> binutils versions yet.  Is this something known?

Nope - it is a new one...

Please could you open a binutils bugzilla PR for this and include the 
genex.S file (preprocessed if necessary) and the assembler command line 
that causes gas to blow up ?

Cheers
   Nick

Re: XLR Linux/MIPS kernel build error

[Ralf Baechle]

On Tue, Jun 21, 2011 at 04:05:34PM +0100, Nick Clifton wrote:

> Hi Ralf,
> 
> >   AS      arch/mips/kernel/genex.o
> >/home/ralf/src/linux/upstream-linus/arch/mips/kernel/genex.S: Assembler messages:
> >/home/ralf/src/linux/upstream-linus/arch/mips/kernel/genex.S:524: Internal error!
> >Assertion failure in append_insn at ../../gas/config/tc-mips.c line 2867.
> 
> >Not sure what's blowin up there and I haven't had a chance to try other
> >binutils versions yet.  Is this something known?
> 
> Nope - it is a new one...
> 
> Please could you open a binutils bugzilla PR for this and include
> the genex.S file (preprocessed if necessary) and the assembler
> command line that causes gas to blow up ?

I've extracted a 5 line minimal test case and cooking receipe and filed
everything as http://sourceware.org/bugzilla/show_bug.cgi?id=12915

Cheers,

  Ralf

Re: XLR Linux/MIPS kernel build error

[Jayachandran C.]

On Tue, Jun 21, 2011 at 03:43:40PM +0100, Ralf Baechle wrote:
> I'm getting a build error with gcc 4.6.0 and binutils 2.21:
> 
> [...]
>   AS      arch/mips/kernel/entry.o
>   AS      arch/mips/kernel/genex.o
> /home/ralf/src/linux/upstream-linus/arch/mips/kernel/genex.S: Assembler messages:
> /home/ralf/src/linux/upstream-linus/arch/mips/kernel/genex.S:524: Internal error!
> Assertion failure in append_insn at ../../gas/config/tc-mips.c line 2867.
> Please report this bug.
> make[4]: *** [arch/mips/kernel/genex.o] Error 1
> make[3]: *** [arch/mips/kernel] Error 2
> make[2]: *** [arch/mips] Error 2
> make[1]: *** [sub-make] Error 2
> make: *** [all] Error 2
> make: Leaving directory `/home/ralf/src/linux/obj/nlm_xlr-build'
> 
> Not sure what's blowin up there and I haven't had a chance to try other
> binutils versions yet.  Is this something known?  None of the other MIPS
> kernel defconfigs is encountering this issue.

I have not used this GCC/binutils combination yet.  But I have had success with the
code sourcery toolchain (needs minor patch to add -march=xlr cflags):

gcc version 4.5.2 (Sourcery G++ Lite 2011.03-53) 
GNU ld (Sourcery G++ Lite 2011.03-53) 2.20.51.20100809

JC.