Re: [PATCH] s390/purgatory: Use -D__DISABLE_EXPORTS

[Vasily Gorbik <gor@linux.ibm.com>]

On Thu, Feb 13, 2025 at 09:16:14PM +0000, Sami Tolvanen wrote:
> The object files in purgatory do not export symbols, so disable exports
> for all the object files, not only sha256.o, with -D__DISABLE_EXPORTS.
> 
> This fixes a build failure with CONFIG_GENDWARFKSYMS, where we would
> otherwise attempt to calculate symbol versions for purgatory objects and
> fail because they're not built with debugging information:
> 
> error: gendwarfksyms: process_module: dwarf_get_units failed: no debugging information?
> make[5]: *** [../scripts/Makefile.build:207: arch/s390/purgatory/string.o] Error 1
> make[5]: *** Deleting file 'arch/s390/purgatory/string.o'
> 
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202502120752.U3fOKScQ-lkp@intel.com/
> Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
> ---
>  arch/s390/purgatory/Makefile | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Applied, thank you!