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1 #
2 # linux/arch/sh/boot/compressed/Makefile
3 #
4 # create a compressed vmlinux image from the original vmlinux
5 #
6
7 targets         := vmlinux vmlinux.bin vmlinux.bin.gz \
8                    head_32.o misc_32.o piggy.o
9 EXTRA_AFLAGS    := -traditional
10
11 OBJECTS = $(obj)/head_32.o $(obj)/misc_32.o
12
13 ifdef CONFIG_SH_STANDARD_BIOS
14 OBJECTS += $(obj)/../../kernel/sh_bios.o
15 endif
16
17 #
18 # IMAGE_OFFSET is the load offset of the compression loader
19 #
20 IMAGE_OFFSET    := $(shell /bin/bash -c 'printf "0x%08x" \
21                      $$[$(CONFIG_PAGE_OFFSET)  + \
22                         $(CONFIG_MEMORY_START) + \
23                         $(CONFIG_BOOT_LINK_OFFSET)]')
24
25 LIBGCC  := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
26
27 LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds
28
29 $(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
30         $(call if_changed,ld)
31         @:
32
33 $(obj)/vmlinux.bin: vmlinux FORCE
34         $(call if_changed,objcopy)
35
36 $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
37         $(call if_changed,gzip)
38
39 LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh-linux -T
40 OBJCOPYFLAGS += -R .empty_zero_page
41
42 $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
43         $(call if_changed,ld)