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s390: introduce compile time check for empty .bss section

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Introduce compile time check for files which should avoid using .bss
section, because of the following reasons:
- .bss section has not been zeroed yet,
- initrd has not been moved to a safe location and could be overlapping
with .bss section.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Vasily Gorbik
2018-05-03 16:40:13 +02:00
committed by Martin Schwidefsky
parent 971a9ca625
commit 0391fcb5e1
4 changed files with 23 additions and 0 deletions
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3
arch/s390/lib/Makefile
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@@ -8,3 +8,6 @@ obj-y += mem.o xor.o
lib-$(CONFIG_SMP) += spinlock.o
lib-$(CONFIG_KPROBES) += probes.o
lib-$(CONFIG_UPROBES) += probes.o
chkbss := mem.o
include $(srctree)/arch/s390/scripts/Makefile.chkbss