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OpenCloudOS-Kernel
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s390: introduce .boot.preserved.data section compile time validation 

Same as for .boot.data section make sure that .boot.preserved.data
sections of vmlinux and arch/s390/compressed/vmlinux match before
producing the compressed kernel image. Symbols presence, order and sizes
are cross-checked.

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 2019-04-01 19:10:56 +02:00 committed by Martin Schwidefsky
parent 1e941d3949
commit fd184e1a8b
1 changed files with 2 additions and 2 deletions
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4
arch/s390/boot/Makefile
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@ -30,7 +30,7 @@ CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
obj-y := head.o als.o startup.o mem_detect.o ipl_parm.o string.o ebcdic.o
obj-y += sclp_early_core.o mem.o ipl_vmparm.o cmdline.o ctype.o
targets := bzImage startup.a section_cmp.boot.data $(obj-y)
targets := bzImage startup.a section_cmp.boot.data section_cmp.boot.preserved.data $(obj-y)
subdir- := compressed
OBJECTS := $(addprefix $(obj)/,$(obj-y))
@ -48,7 +48,7 @@ define cmd_section_cmp
touch $@
endef
$(obj)/bzImage: $(obj)/compressed/vmlinux $(obj)/section_cmp.boot.data FORCE
$(obj)/bzImage: $(obj)/compressed/vmlinux $(obj)/section_cmp.boot.data $(obj)/section_cmp.boot.preserved.data FORCE
$(call if_changed,objcopy)
$(obj)/section_cmp%: vmlinux $(obj)/compressed/vmlinux FORCE