loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'

loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   57b8e2d666a31fa201432d58f5fe3469a0dd83ba
commit: 3d9aba6618d115750729bba2d1f8af180bd7d3bd LoongArch: Adjust build infrastructure for 32BIT/64BIT
date:   8 days ago
config: loongarch-randconfig-001-20260430 (https://download.01.org/0day-ci/archive/20260430/202604300518.niGSNE7F-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 14.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260430/202604300518.niGSNE7F-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
| Fixes: 3d9aba6618d1 ("LoongArch: Adjust build infrastructure for 32BIT/64BIT")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604300518.niGSNE7F-lkp@intel.com/

All errors (new ones prefixed by >>):

>> loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'
   loongarch64-linux-gcc: note: valid arguments to '-march=' are: abi-default la464 la64v1.0 la64v1.1 la664 loongarch64 native; did you mean 'la64v1.0'?
>> loongarch64-linux-gcc: error: unrecognized argument in option '-mabi=ilp32s'
   loongarch64-linux-gcc: note: valid arguments to '-mabi=' are: lp64d lp64f lp64s
>> loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'
   loongarch64-linux-gcc: note: valid arguments to '-march=' are: abi-default la464 la64v1.0 la64v1.1 la664 loongarch64 native; did you mean 'la64v1.0'?
>> loongarch64-linux-gcc: error: unrecognized argument in option '-mabi=ilp32s'
   loongarch64-linux-gcc: note: valid arguments to '-mabi=' are: lp64d lp64f lp64s
   make[3]: *** [scripts/Makefile.build:289: scripts/mod/empty.o] Error 1 shuffle=3714732041
>> loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'
   loongarch64-linux-gcc: note: valid arguments to '-march=' are: abi-default la464 la64v1.0 la64v1.1 la664 loongarch64 native; did you mean 'la64v1.0'?
>> loongarch64-linux-gcc: error: unrecognized argument in option '-mabi=ilp32s'
   loongarch64-linux-gcc: note: valid arguments to '-mabi=' are: lp64d lp64f lp64s
   make[3]: *** [scripts/Makefile.build:184: scripts/mod/devicetable-offsets.s] Error 1 shuffle=3714732041
   make[3]: Target 'scripts/mod/' not remade because of errors.
   make[2]: *** [Makefile:1336: prepare0] Error 2 shuffle=3714732041
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:248: __sub-make] Error 2 shuffle=3714732041
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:248: __sub-make] Error 2 shuffle=3714732041
   make: Target 'prepare' not remade because of errors.

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'

[kernel test robot]

Hi Huacai,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   06cf61899d6498b33e4b7c87d99d5bd471ccc375
commit: 3d9aba6618d115750729bba2d1f8af180bd7d3bd LoongArch: Adjust build infrastructure for 32BIT/64BIT
date:   4 months ago
config: loongarch-randconfig-001-20260811 (https://download.01.org/0day-ci/archive/20260811/202608110230.c32X9KXj-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260811/202608110230.c32X9KXj-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
| Fixes: 3d9aba6618d1 ("LoongArch: Adjust build infrastructure for 32BIT/64BIT")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608110230.c32X9KXj-lkp@intel.com/

All errors (new ones prefixed by >>):

>> loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'
   loongarch64-linux-gcc: note: valid arguments to '-march=' are: abi-default la464 la64v1.0 la64v1.1 la664 loongarch64 native; did you mean 'la64v1.0'?
   loongarch64-linux-gcc: error: unrecognized argument in option '-mabi=ilp32s'
   loongarch64-linux-gcc: note: valid arguments to '-mabi=' are: lp64d lp64f lp64s
>> loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'
   loongarch64-linux-gcc: note: valid arguments to '-march=' are: abi-default la464 la64v1.0 la64v1.1 la664 loongarch64 native; did you mean 'la64v1.0'?
   loongarch64-linux-gcc: error: unrecognized argument in option '-mabi=ilp32s'
   loongarch64-linux-gcc: note: valid arguments to '-mabi=' are: lp64d lp64f lp64s
   make[3]: *** [scripts/Makefile.build:289: scripts/mod/empty.o] Error 1 shuffle=28659922
>> loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'
   loongarch64-linux-gcc: note: valid arguments to '-march=' are: abi-default la464 la64v1.0 la64v1.1 la664 loongarch64 native; did you mean 'la64v1.0'?
   loongarch64-linux-gcc: error: unrecognized argument in option '-mabi=ilp32s'
   loongarch64-linux-gcc: note: valid arguments to '-mabi=' are: lp64d lp64f lp64s
   make[3]: *** [scripts/Makefile.build:184: scripts/mod/devicetable-offsets.s] Error 1 shuffle=28659922
   make[3]: Target 'scripts/mod/' not remade because of errors.
   make[2]: *** [Makefile:1336: prepare0] Error 2 shuffle=28659922
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:248: __sub-make] Error 2 shuffle=28659922
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:248: __sub-make] Error 2 shuffle=28659922
   make: Target 'prepare' not remade because of errors.

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'

[Arnd Bergmann]

On Mon, Aug 10, 2026, at 21:47, kernel test robot wrote:
>
> tree:   
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
> master
> head:   06cf61899d6498b33e4b7c87d99d5bd471ccc375
> commit: 3d9aba6618d115750729bba2d1f8af180bd7d3bd LoongArch: Adjust 
> build infrastructure for 32BIT/64BIT
> date:   4 months ago
> config: loongarch-randconfig-001-20260811 
> (https://download.01.org/0day-ci/archive/20260811/202608110230.c32X9KXj-lkp@intel.com/config)
> compiler: loongarch64-linux-gcc (GCC) 15.2.0
> reproduce (this is a W=1 build): 
> (https://download.01.org/0day-ci/archive/20260811/202608110230.c32X9KXj-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
> | Fixes: 3d9aba6618d1 ("LoongArch: Adjust build infrastructure for 
> 32BIT/64BIT")
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: 
> https://lore.kernel.org/oe-kbuild-all/202608110230.c32X9KXj-lkp@intel.com/
>
> All errors (new ones prefixed by >>):
>
>>> loongarch64-linux-gcc: error: unrecognized argument in option '-march=la32v1.0'

I see that this option is supported by gcc-16 but not gcc-15.
Clang-22 also doesn't have it, not sure about clang-23 or higher.

How about this change?

--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -224,6 +224,7 @@ choice
 
 config 32BIT
        bool "32-bit kernel"
+       depends on GCC_VERSION >= 160000 || CLANG_VERSION >= 230000
        help
          Select this option if you want to build a 32-bit kernel.