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Diffstat (limited to 'arch/s390/boot/compressed/Makefile')
-rw-r--r--arch/s390/boot/compressed/Makefile16
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile
index 26d6a94f40f6..5766f7b9b271 100644
--- a/arch/s390/boot/compressed/Makefile
+++ b/arch/s390/boot/compressed/Makefile
@@ -29,11 +29,16 @@ LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T
$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS)
$(call if_changed,ld)
-sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 0x\1/p'
+TRIM_HEAD_SIZE := 0x11000
-quiet_cmd_sizes = GEN $@
+sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 (0x\1 - $(TRIM_HEAD_SIZE))/p'
+
+quiet_cmd_sizes = GEN $@
cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
+quiet_cmd_trim_head = TRIM $@
+ cmd_trim_head = tail -c +$$(($(TRIM_HEAD_SIZE) + 1)) $< > $@
+
$(obj)/sizes.h: vmlinux
$(call if_changed,sizes)
@@ -43,10 +48,13 @@ $(obj)/head.o: $(obj)/sizes.h
CFLAGS_misc.o += -I$(objtree)/$(obj)
$(obj)/misc.o: $(obj)/sizes.h
-OBJCOPYFLAGS_vmlinux.bin := -R .comment -S
-$(obj)/vmlinux.bin: vmlinux
+OBJCOPYFLAGS_vmlinux.bin.full := -R .comment -S
+$(obj)/vmlinux.bin.full: vmlinux
$(call if_changed,objcopy)
+$(obj)/vmlinux.bin: $(obj)/vmlinux.bin.full
+ $(call if_changed,trim_head)
+
vmlinux.bin.all-y := $(obj)/vmlinux.bin
suffix-$(CONFIG_KERNEL_GZIP) := gz