linux-kernel - Re: error: ABI 'o32' is not supported on CPU 'mips64'

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Message-ID: <alpine.DEB.2.21.2409051011570.1802@angie.orcam.me.uk>
Date: Thu, 5 Sep 2024 10:22:49 +0100 (BST)
From: "Maciej W. Rozycki" <macro@...am.me.uk>
To: kernel test robot <lkp@...el.com>
cc: Jiaxun Yang <jiaxun.yang@...goat.com>, oe-kbuild-all@...ts.linux.dev, 
    linux-kernel@...r.kernel.org, 
    Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Subject: Re: error: ABI 'o32' is not supported on CPU 'mips64'

On Sat, 31 Aug 2024, kernel test robot wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   fb24560f31f9dff2c97707cfed6029bfebebaf1c
> commit: 2326c8f2022636a1e47402ffd09a3b28f737275f MIPS: Fix fallback march for SB1
> date:   7 weeks ago
> config: mips-randconfig-r121-20240830 (https://download.01.org/0day-ci/archive/20240831/202408310705.y2OPq3Xs-lkp@intel.com/config)
> compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
> reproduce: (https://download.01.org/0day-ci/archive/20240831/202408310705.y2OPq3Xs-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202408310705.y2OPq3Xs-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
> >> error: ABI 'o32' is not supported on CPU 'mips64'
> >> error: error: ABI 'o32' is not supported on CPU 'mips64'
>    ABI 'o32' is not supported on CPU 'mips64'
>    make[3]: *** [scripts/Makefile.build:117: scripts/mod/devicetable-offsets.s] Error 1
>    make[3]: *** [scripts/Makefile.build:244: scripts/mod/empty.o] Error 1
>    make[3]: Target 'scripts/mod/' not remade because of errors.
>    make[2]: *** [Makefile:1207: prepare0] Error 2
>    make[2]: Target 'prepare' not remade because of errors.
>    make[1]: *** [Makefile:240: __sub-make] Error 2
>    make[1]: Target 'prepare' not remade because of errors.
>    make: *** [Makefile:240: __sub-make] Error 2
>    make: Target 'prepare' not remade because of errors.

 This is a compiler bug.  The MIPS64 ISA does certainly support the o32 
ABI, so they need to fix their "CPU 'mips64'" definition.

  Maciej