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
8
9OBJECTS = $(obj)/head.o $(obj)/misc.o
10
11#
12# IMAGE_OFFSET is the load offset of the compression loader
13# Assign dummy values if these 2 variables are not defined,
14# in order to suppress error message.
15#
16CONFIG_MEMORY_START     ?= 0x00400000
17CONFIG_BOOT_LINK_OFFSET ?= 0x00280000
18IMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET))))
19
20LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
21LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup -T $(obj)/vmlinux.lds \
22	--defsym output=$(CONFIG_MEMORY_START)
23
24$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
25	$(call if_changed,ld)
26	@:
27
28$(obj)/vmlinux.bin: vmlinux FORCE
29	$(call if_changed,objcopy)
30
31$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
32	$(call if_changed,gzip)
33
34LDFLAGS_piggy.o := -r --format binary --oformat elf32-h8300-linux -T
35OBJCOPYFLAGS := -O binary
36
37$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
38	$(call if_changed,ld)
39