xref: /openbmc/linux/arch/sh/boot/compressed/Makefile (revision d78c317f) 
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.xz vmlinux.bin.lzo \
10		   head_$(BITS).o misc.o piggy.o
11
12OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/cache.o
13
14GCOV_PROFILE := n
15
16#
17# IMAGE_OFFSET is the load offset of the compression loader
18#
19ifeq ($(CONFIG_32BIT),y)
20IMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
21		     $$[$(CONFIG_MEMORY_START)  + \
22			$(CONFIG_BOOT_LINK_OFFSET)]')
23else
24IMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
25		     $$[$(CONFIG_PAGE_OFFSET)  + \
26			$(KERNEL_MEMORY) + \
27			$(CONFIG_BOOT_LINK_OFFSET)]')
28endif
29
30ifeq ($(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 $(obj)/../../kernel/vmlinux.lds
37
38#
39# Pull in the necessary libgcc bits from the in-kernel implementation.
40#
41lib1funcs-$(CONFIG_SUPERH32)	:= ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S \
42				   lshrsi3.S
43lib1funcs-obj			:= \
44	$(addsuffix .o, $(basename $(addprefix $(obj)/, $(lib1funcs-y))))
45
46lib1funcs-dir		:= $(srctree)/arch/$(SRCARCH)/lib
47ifeq ($(BITS),64)
48	lib1funcs-dir 	:= $(addsuffix $(BITS), $(lib1funcs-dir))
49endif
50
51KBUILD_CFLAGS += -I$(lib1funcs-dir)
52
53$(addprefix $(obj)/,$(lib1funcs-y)): $(obj)/%: $(lib1funcs-dir)/% FORCE
54	$(call cmd,shipped)
55
56$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(lib1funcs-obj) FORCE
57	$(call if_changed,ld)
58	@:
59
60$(obj)/vmlinux.bin: vmlinux FORCE
61	$(call if_changed,objcopy)
62
63vmlinux.bin.all-y := $(obj)/vmlinux.bin
64
65$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE
66	$(call if_changed,gzip)
67$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
68	$(call if_changed,bzip2)
69$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
70	$(call if_changed,lzma)
71$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE
72	$(call if_changed,xzkern)
73$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
74	$(call if_changed,lzo)
75
76OBJCOPYFLAGS += -R .empty_zero_page
77
78LDFLAGS_piggy.o := -r --format binary --oformat $(ld-bfd) -T
79
80$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
81	$(call if_changed,ld)
82