xref: /linux/arch/sh/boot/compressed/Makefile (revision 1eca133cc9f978a8c44788fc5b2fe54219f9425c) 
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 \
8		   head_$(BITS).o misc_$(BITS).o piggy.o
9
10OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc_$(BITS).o $(obj)/cache.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#
19IMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
20		     $$[$(CONFIG_PAGE_OFFSET)  + \
21			$(KERNEL_MEMORY) + \
22			$(CONFIG_BOOT_LINK_OFFSET)]')
23
24LIBGCC	:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
25
26ifeq ($(CONFIG_FUNCTION_TRACER),y)
27ORIG_CFLAGS := $(KBUILD_CFLAGS)
28KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
29endif
30
31LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \
32		   -T $(obj)/../../kernel/vmlinux.lds
33
34$(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	$(call if_changed,gzip)
43
44OBJCOPYFLAGS += -R .empty_zero_page
45
46$(obj)/piggy.o: $(obj)/piggy.S $(obj)/vmlinux.bin.gz FORCE
47	$(call if_changed,as_o_S)
48