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| author |   Christian Borntraeger <borntraeger@de.ibm.com> | 2019-12-18 09:34:57 +0100 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2019-12-18 23:29:26 +0100 |
| commit | c23587c92f6e3260fe3b82bb75b38aa2553b9468 (patch) | |
| tree | a9547a1956cc2d88ff07349b96ae95a721093fa0 /arch | |
| parent | s390/purgatory: Make sure we fail the build if purgatory has missing symbols (diff) | |
| download | linux-dev-c23587c92f6e3260fe3b82bb75b38aa2553b9468.tar.xz linux-dev-c23587c92f6e3260fe3b82bb75b38aa2553b9468.zip | |
s390/purgatory: do not build purgatory with kcov, kasan and friends
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>
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 13e9a5dc0a07..c57f8c40e992 100644 --- a/arch/s390/purgatory/Makefile +++ b/arch/s390/purgatory/Makefile @@ -15,8 +15,10 @@ CFLAGS_sha256.o := -D__DISABLE_EXPORTS $(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 KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare 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" |