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s390: add support for FORTIFY_SOURCE

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This is the quite trivial backend for s390 which is required to enable
FORTIFY_SOURCE support.

See commit 6974f0c455 ("include/linux/string.h: add the option of
fortified string.h functions") for more details.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2017-09-12 13:49:57 +02:00
committed by Martin Schwidefsky
parent 59a19ea9a0
commit 79962038df
4 changed files with 5 additions and 2 deletions
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2
arch/s390/boot/compressed/Makefile
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@@ -11,7 +11,7 @@ targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
targets += misc.o piggy.o sizes.h head.o
KBUILD_CFLAGS := -m64 -D__KERNEL__ -O2
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY
KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks -msoft-float
KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
KBUILD_CFLAGS += $(call cc-option,-ffreestanding)