1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun# 3*4882a593Smuzhiyun# linux/arch/sh/boot/compressed/Makefile 4*4882a593Smuzhiyun# 5*4882a593Smuzhiyun# create a compressed vmlinux image from the original vmlinux 6*4882a593Smuzhiyun# 7*4882a593Smuzhiyun 8*4882a593Smuzhiyuntargets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunOBJECTS = $(obj)/head.o $(obj)/misc.o 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun# 13*4882a593Smuzhiyun# IMAGE_OFFSET is the load offset of the compression loader 14*4882a593Smuzhiyun# Assign dummy values if these 2 variables are not defined, 15*4882a593Smuzhiyun# in order to suppress error message. 16*4882a593Smuzhiyun# 17*4882a593SmuzhiyunCONFIG_MEMORY_START ?= 0x00400000 18*4882a593SmuzhiyunCONFIG_BOOT_LINK_OFFSET ?= 0x00280000 19*4882a593SmuzhiyunIMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)))) 20*4882a593Smuzhiyun 21*4882a593SmuzhiyunLIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name 2>/dev/null) 22*4882a593SmuzhiyunLDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup -T $(obj)/vmlinux.lds \ 23*4882a593Smuzhiyun --defsym output=$(CONFIG_MEMORY_START) 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE 26*4882a593Smuzhiyun $(call if_changed,ld) 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun$(obj)/vmlinux.bin: vmlinux FORCE 29*4882a593Smuzhiyun $(call if_changed,objcopy) 30*4882a593Smuzhiyun 31*4882a593Smuzhiyunsuffix-$(CONFIG_KERNEL_GZIP) := gzip 32*4882a593Smuzhiyunsuffix-$(CONFIG_KERNEL_LZO) := lzo 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun$(obj)/vmlinux.bin.$(suffix-y): $(obj)/vmlinux.bin FORCE 35*4882a593Smuzhiyun $(call if_changed,$(suffix-y)) 36*4882a593Smuzhiyun 37*4882a593SmuzhiyunLDFLAGS_piggy.o := -r --format binary --oformat elf32-h8300-linux -T 38*4882a593SmuzhiyunOBJCOPYFLAGS := -O binary 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE 41*4882a593Smuzhiyun $(call if_changed,ld) 42*4882a593Smuzhiyun 43*4882a593SmuzhiyunCFLAGS_misc.o = -O0 44