1# SPDX-License-Identifier: GPL-2.0 2# 3# linux/arch/s390/boot/compressed/Makefile 4# 5# create a compressed vmlinux image from the original vmlinux 6# 7 8KCOV_INSTRUMENT := n 9 10targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 11targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4 12targets += misc.o piggy.o sizes.h head.o 13 14KBUILD_CFLAGS := -m64 -D__KERNEL__ -O2 15KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING 16KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks -msoft-float 17KBUILD_CFLAGS += $(call cc-option,-mpacked-stack) 18KBUILD_CFLAGS += $(call cc-option,-ffreestanding) 19 20GCOV_PROFILE := n 21UBSAN_SANITIZE := n 22 23OBJECTS := $(addprefix $(objtree)/arch/s390/kernel/, head.o ebcdic.o als.o) 24OBJECTS += $(objtree)/drivers/s390/char/sclp_early_core.o 25OBJECTS += $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o 26 27LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T 28$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS) 29 $(call if_changed,ld) 30 31sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 0x\1/p' 32 33quiet_cmd_sizes = GEN $@ 34 cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@ 35 36$(obj)/sizes.h: vmlinux 37 $(call if_changed,sizes) 38 39AFLAGS_head.o += -I$(objtree)/$(obj) 40$(obj)/head.o: $(obj)/sizes.h 41 42CFLAGS_misc.o += -I$(objtree)/$(obj) 43$(obj)/misc.o: $(obj)/sizes.h 44 45OBJCOPYFLAGS_vmlinux.bin := -R .comment -S 46$(obj)/vmlinux.bin: vmlinux 47 $(call if_changed,objcopy) 48 49vmlinux.bin.all-y := $(obj)/vmlinux.bin 50 51suffix-$(CONFIG_KERNEL_GZIP) := gz 52suffix-$(CONFIG_KERNEL_BZIP2) := bz2 53suffix-$(CONFIG_KERNEL_LZ4) := lz4 54suffix-$(CONFIG_KERNEL_LZMA) := lzma 55suffix-$(CONFIG_KERNEL_LZO) := lzo 56suffix-$(CONFIG_KERNEL_XZ) := xz 57 58$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) 59 $(call if_changed,gzip) 60$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) 61 $(call if_changed,bzip2) 62$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) 63 $(call if_changed,lz4) 64$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) 65 $(call if_changed,lzma) 66$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) 67 $(call if_changed,lzo) 68$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) 69 $(call if_changed,xzkern) 70 71LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T 72$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) 73 $(call if_changed,ld) 74