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authorVasily Gorbik <gor@linux.ibm.com>2017-11-17 16:52:22 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2018-10-09 11:21:21 +0200
commit7fef92ccadd744492526d7749eebfe24dd8dcc48 (patch)
tree1222e34e9258e2312d294020cff6ba2f749f228f /arch/s390/Makefile
parent42db5ed86090d8e57ca08bfd162a10be6320cc49 (diff)
s390/kasan: double the stack size
Kasan stack instrumentation pads stack variables with redzones, which increases stack frames size significantly. Stack sizes are increased from 16k to 32k in the code, as well as for the kernel stack overflow detection option (CHECK_STACK). Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/Makefile')
-rw-r--r--arch/s390/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index ee65185bbc80..0b33577932c3 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -27,7 +27,7 @@ KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding)
KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g)
KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,))
UTS_MACHINE := s390x
-STACK_SIZE := 16384
+STACK_SIZE := $(if $(CONFIG_KASAN),32768,16384)
CHECKFLAGS += -D__s390__ -D__s390x__
export LD_BFD