Vasily Gorbik 88731c8f36 s390/boot: fix zstd build for -march=z900 ... zstd decompression uses __builtin_clz() which fails back to __clzdi2() when the kernel is built for older hardware like z900. This leads to build failures like the following: s390x-11.1.0-ld: /devel/src/kernel/arch/s390/boot/compressed/../../../../lib/zstd/bitstream.h:148: undefined reference to `__clzdi2' Fix that by optionally including lib/clz_ctz.c into the decompressor. Reported-by: kernel test robot <lkp@intel.com> Fixes: 7b034d9c1b ("s390/boot: add zstd support") Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Link: https://lore.kernel.org/r/patch-1.thread-f0f589.git-f0f58936888f.your-ad-here.call-01627564869-ext-2765@work.hours Signed-off-by: Heiko Carstens <hca@linux.ibm.com>		2021-07-30 17:08:22 +02:00
..
.gitignore	s390/decompressor: add symbols support	2020-11-20 19:19:11 +01:00
clz_ctz.c	s390/boot: fix zstd build for -march=z900	2021-07-30 17:08:22 +02:00
decompressor.c	s390/boot: add zstd support	2021-06-18 16:41:22 +02:00
decompressor.h	s390/decompressor: fix build warning	2020-11-09 11:20:59 +01:00
Makefile	s390/boot: fix zstd build for -march=z900	2021-07-30 17:08:22 +02:00
vmlinux.lds.S	s390/boot: add build-id to decompressor	2020-12-09 21:02:07 +01:00