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s390: enable KCSAN

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s390x GCC and SystemZ Clang have ThreadSanitizer support now [1] [2],
so enable KCSAN for s390.

[1] https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=ea22954e7c58
[2] https://reviews.llvm.org/D105629

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Ilya Leoshkevich
2021-07-28 13:59:04 +02:00
committed by Heiko Carstens
parent 09b1b13461
commit e37b3dd063
6 changed files with 6 additions and 0 deletions
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1
arch/s390/Kconfig
View File

@@ -138,6 +138,7 @@ config S390
select HAVE_ARCH_JUMP_LABEL_RELATIVE select HAVE_ARCH_JUMP_LABEL_RELATIVE
select HAVE_ARCH_KASAN select HAVE_ARCH_KASAN
select HAVE_ARCH_KASAN_VMALLOC select HAVE_ARCH_KASAN_VMALLOC
select HAVE_ARCH_KCSAN
select HAVE_ARCH_KFENCE select HAVE_ARCH_KFENCE
select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET
select HAVE_ARCH_SECCOMP_FILTER select HAVE_ARCH_SECCOMP_FILTER

1
arch/s390/boot/Makefile
View File

@@ -7,6 +7,7 @@ KCOV_INSTRUMENT := n
GCOV_PROFILE := n GCOV_PROFILE := n
UBSAN_SANITIZE := n UBSAN_SANITIZE := n
KASAN_SANITIZE := n KASAN_SANITIZE := n
KCSAN_SANITIZE := n
KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR) KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR) KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)

1
arch/s390/boot/compressed/Makefile
View File

@@ -9,6 +9,7 @@ KCOV_INSTRUMENT := n
GCOV_PROFILE := n GCOV_PROFILE := n
UBSAN_SANITIZE := n UBSAN_SANITIZE := n
KASAN_SANITIZE := n KASAN_SANITIZE := n
KCSAN_SANITIZE := n
obj-y := $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) info.o obj-y := $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) info.o
obj-all := $(obj-y) piggy.o syms.o obj-all := $(obj-y) piggy.o syms.o

1
arch/s390/kernel/vdso32/Makefile
View File

@@ -36,6 +36,7 @@ CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
GCOV_PROFILE := n GCOV_PROFILE := n
UBSAN_SANITIZE := n UBSAN_SANITIZE := n
KASAN_SANITIZE := n KASAN_SANITIZE := n
KCSAN_SANITIZE := n
# Force dependency (incbin is bad) # Force dependency (incbin is bad)
$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so

1
arch/s390/kernel/vdso64/Makefile
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@@ -39,6 +39,7 @@ CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
GCOV_PROFILE := n GCOV_PROFILE := n
UBSAN_SANITIZE := n UBSAN_SANITIZE := n
KASAN_SANITIZE := n KASAN_SANITIZE := n
KCSAN_SANITIZE := n
# Force dependency (incbin is bad) # Force dependency (incbin is bad)
$(obj)/vdso64_wrapper.o : $(obj)/vdso64.so $(obj)/vdso64_wrapper.o : $(obj)/vdso64.so

1
arch/s390/purgatory/Makefile
View File

@@ -19,6 +19,7 @@ KCOV_INSTRUMENT := n
GCOV_PROFILE := n GCOV_PROFILE := n
UBSAN_SANITIZE := n UBSAN_SANITIZE := n
KASAN_SANITIZE := n KASAN_SANITIZE := n
KCSAN_SANITIZE := n
KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare