lib: add support for LZ4-compressed kernel
[linux-2.6-block.git] / arch / x86 / boot / compressed / Makefile
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1#
2# linux/arch/x86/boot/compressed/Makefile
3#
4# create a compressed vmlinux image from the original vmlinux
5#
6
91870824 7targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo
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8
9KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
10KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
95a38f34 11KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
17a2a9b5 12cflags-$(CONFIG_X86_32) := -march=i386
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13cflags-$(CONFIG_X86_64) := -mcmodel=small
14KBUILD_CFLAGS += $(cflags-y)
15KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
16KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
17
18KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
7bf99fb6 19GCOV_PROFILE := n
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20
21LDFLAGS := -m elf_$(UTS_MACHINE)
22LDFLAGS_vmlinux := -T
23
02a884c0 24hostprogs-y := mkpiggy
12871c56 25HOST_EXTRACFLAGS += -I$(srctree)/tools/include
02a884c0 26
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27VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \
28 $(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \
29 $(obj)/piggy.o
30
9dead5bb 31$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
9dead5bb 32
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33ifeq ($(CONFIG_EFI_STUB), y)
34 VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o
35endif
36
37$(obj)/vmlinux: $(VMLINUX_OBJS) FORCE
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38 $(call if_changed,ld)
39 @:
40
099e1377 41OBJCOPYFLAGS_vmlinux.bin := -R .comment -S
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42$(obj)/vmlinux.bin: vmlinux FORCE
43 $(call if_changed,objcopy)
44
91870824 45targets += $(patsubst $(obj)/%,%,$(VMLINUX_OBJS)) vmlinux.bin.all vmlinux.relocs
db569afa 46
6520fe55 47CMD_RELOCS = arch/x86/tools/relocs
db569afa 48quiet_cmd_relocs = RELOCS $@
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49 cmd_relocs = $(CMD_RELOCS) $< > $@;$(CMD_RELOCS) --abs-relocs $<
50$(obj)/vmlinux.relocs: vmlinux FORCE
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51 $(call if_changed,relocs)
52
53vmlinux.bin.all-y := $(obj)/vmlinux.bin
5f11e020 54vmlinux.bin.all-$(CONFIG_X86_NEED_RELOCS) += $(obj)/vmlinux.relocs
db569afa 55
5f11e020 56$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE
db569afa 57 $(call if_changed,gzip)
5f11e020 58$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
ae03c499 59 $(call if_changed,bzip2)
5f11e020 60$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
ae03c499 61 $(call if_changed,lzma)
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62$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE
63 $(call if_changed,xzkern)
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64$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
65 $(call if_changed,lzo)
db569afa 66
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67suffix-$(CONFIG_KERNEL_GZIP) := gz
68suffix-$(CONFIG_KERNEL_BZIP2) := bz2
69suffix-$(CONFIG_KERNEL_LZMA) := lzma
30314804 70suffix-$(CONFIG_KERNEL_XZ) := xz
13510997 71suffix-$(CONFIG_KERNEL_LZO) := lzo
ae03c499 72
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73quiet_cmd_mkpiggy = MKPIGGY $@
74 cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false )
75
76targets += piggy.S
77$(obj)/piggy.S: $(obj)/vmlinux.bin.$(suffix-y) $(obj)/mkpiggy FORCE
78 $(call if_changed,mkpiggy)