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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>
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1 changed files with 2 additions and 2 deletions
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@ -30,7 +30,7 @@ CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
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obj-y := head.o als.o startup.o mem_detect.o ipl_parm.o string.o ebcdic.o
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obj-y += sclp_early_core.o mem.o ipl_vmparm.o cmdline.o ctype.o
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targets := bzImage startup.a section_cmp.boot.data $(obj-y)
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targets := bzImage startup.a section_cmp.boot.data section_cmp.boot.preserved.data $(obj-y)
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subdir- := compressed
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OBJECTS := $(addprefix $(obj)/,$(obj-y))
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@ -48,7 +48,7 @@ define cmd_section_cmp
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touch $@
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endef
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$(obj)/bzImage: $(obj)/compressed/vmlinux $(obj)/section_cmp.boot.data FORCE
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$(obj)/bzImage: $(obj)/compressed/vmlinux $(obj)/section_cmp.boot.data $(obj)/section_cmp.boot.preserved.data FORCE
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$(call if_changed,objcopy)
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$(obj)/section_cmp%: vmlinux $(obj)/compressed/vmlinux FORCE
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