1# 2# linux/arch/sh/boot/compressed/Makefile 3# 4# create a compressed vmlinux image from the original vmlinux 5# 6 7targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o 8EXTRA_AFLAGS := -traditional 9 10OBJECTS = $(obj)/head.o $(obj)/misc.o 11 12ifdef CONFIG_SH_STANDARD_BIOS 13OBJECTS += $(obj)/../../kernel/sh_bios.o 14endif 15 16# 17# IMAGE_OFFSET is the load offset of the compression loader 18# Assign dummy values if these 2 variables are not defined, 19# in order to suppress error message. 20# 21CONFIG_PAGE_OFFSET ?= 0x80000000 22CONFIG_MEMORY_START ?= 0x0c000000 23CONFIG_BOOT_LINK_OFFSET ?= 0x00800000 24 25IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_PAGE_OFFSET) + \ 26 $(CONFIG_MEMORY_START) + \ 27 $(CONFIG_BOOT_LINK_OFFSET)]) 28 29LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) 30 31LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds 32 33 34$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE 35 $(call if_changed,ld) 36 @: 37 38$(obj)/vmlinux.bin: vmlinux FORCE 39 $(call if_changed,objcopy) 40 41$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE 42 $(call if_changed,gzip) 43 44LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh-linux -T 45OBJCOPYFLAGS += -R .empty_zero_page 46 47$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE 48 $(call if_changed,ld) 49