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s390: enable UBSAN

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This enables UBSAN for s390. We have to disable the null sanitizer
as s390 code does access memory via a null pointer (the prefix page).

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Christian Borntraeger
2016-09-12 14:37:20 +02:00
committed by Martin Schwidefsky
parent 725c4d22bb
commit c42d8c7dbe
5 changed files with 10 additions and 2 deletions
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3
arch/s390/kernel/Makefile
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@@ -48,6 +48,9 @@ AFLAGS_head.o += -march=z900
endif
GCOV_PROFILE_sclp.o := n
GCOV_PROFILE_als.o := n
UBSAN_SANITIZE_als.o := n
UBSAN_SANITIZE_early.o := n
UBSAN_SANITIZE_sclp.o := n
obj-y := traps.o time.o process.o base.o early.o setup.o idle.o vtime.o
obj-y += processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o

3
arch/s390/kernel/vdso32/Makefile
View File

@@ -24,8 +24,9 @@ obj-y += vdso32_wrapper.o
extra-y += vdso32.lds
CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
# Disable gcov profiling for VDSO code
# Disable gcov profiling and ubsan for VDSO code
GCOV_PROFILE := n
UBSAN_SANITIZE := n
# Force dependency (incbin is bad)
$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so

3
arch/s390/kernel/vdso64/Makefile
View File

@@ -24,8 +24,9 @@ obj-y += vdso64_wrapper.o
extra-y += vdso64.lds
CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
# Disable gcov profiling for VDSO code
# Disable gcov profiling and ubsan for VDSO code
GCOV_PROFILE := n
UBSAN_SANITIZE := n
# Force dependency (incbin is bad)
$(obj)/vdso64_wrapper.o : $(obj)/vdso64.so