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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2019-12-18 11:34:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-12 14:17:21 +0300 |
| commit | 152eaa8626cca077be5c72bd9928e6e56fd61f59 (patch) | |
| tree | 0a24adbc7878037bb54be4b1ba1e5fdb8b7ee20e /arch | |
| parent | 5ee6f0da6bbdaf21368210767434df7ba69f115b (diff) | |
| download | linux-152eaa8626cca077be5c72bd9928e6e56fd61f59.tar.xz | |
s390/purgatory: do not build purgatory with kcov, kasan and friends
[ Upstream commit c23587c92f6e3260fe3b82bb75b38aa2553b9468 ]
the purgatory must not rely on functions from the "old" kernel,
so we must disable kasan and friends. We also need to have a
separate copy of string.c as the default does not build memcmp
with KASAN.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/purgatory/Makefile | 6 | ||||
| -rw-r--r-- | arch/s390/purgatory/string.c | 3 |
2 files changed, 7 insertions, 2 deletions
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile index ce6a3f75065b..fdccb7689bb9 100644 --- a/arch/s390/purgatory/Makefile +++ b/arch/s390/purgatory/Makefile @@ -13,8 +13,10 @@ $(obj)/sha256.o: $(srctree)/lib/sha256.c FORCE $(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE $(call if_changed_rule,as_o_S) -$(obj)/string.o: $(srctree)/arch/s390/lib/string.c FORCE - $(call if_changed_rule,cc_o_c) +KCOV_INSTRUMENT := n +GCOV_PROFILE := n +UBSAN_SANITIZE := n +KASAN_SANITIZE := n LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib LDFLAGS_purgatory.ro += -z nodefaultlib diff --git a/arch/s390/purgatory/string.c b/arch/s390/purgatory/string.c new file mode 100644 index 000000000000..c98c22a72db7 --- /dev/null +++ b/arch/s390/purgatory/string.c @@ -0,0 +1,3 @@ +// SPDX-License-Identifier: GPL-2.0 +#define __HAVE_ARCH_MEMCMP /* arch function */ +#include "../lib/string.c" |