xref: /openbmc/linux/arch/sh/boot/compressed/Makefile (revision baa7eb025ab14f3cba2e35c0a8648f9c9f01d24f) 
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		   vmlinux.bin.bz2 vmlinux.bin.lzma \
9		   vmlinux.bin.lzo \
10		   head_$(BITS).o misc.o piggy.o
11
12OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/cache.o
13
14#
15# IMAGE_OFFSET is the load offset of the compression loader
16#
17ifeq ($(CONFIG_32BIT),y)
18IMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
19		     $$[$(CONFIG_MEMORY_START)  + \
20			$(CONFIG_BOOT_LINK_OFFSET)]')
21else
22IMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
23		     $$[$(CONFIG_PAGE_OFFSET)  + \
24			$(KERNEL_MEMORY) + \
25			$(CONFIG_BOOT_LINK_OFFSET)]')
26endif
27
28LIBGCC	:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
29
30ifeq ($(CONFIG_MCOUNT),y)
31ORIG_CFLAGS := $(KBUILD_CFLAGS)
32KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
33endif
34
35LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \
36		   -T $(obj)/../../kernel/vmlinux.lds
37
38$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
39	$(call if_changed,ld)
40	@:
41
42$(obj)/vmlinux.bin: vmlinux FORCE
43	$(call if_changed,objcopy)
44
45vmlinux.bin.all-y := $(obj)/vmlinux.bin
46
47$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE
48	$(call if_changed,gzip)
49$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
50	$(call if_changed,bzip2)
51$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
52	$(call if_changed,lzma)
53$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
54	$(call if_changed,lzo)
55
56OBJCOPYFLAGS += -R .empty_zero_page
57
58LDFLAGS_piggy.o := -r --format binary --oformat $(ld-bfd) -T
59
60$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
61	$(call if_changed,ld)
62