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-rw-r--r--arch/x86/boot/compressed/Makefile63
1 files changed, 61 insertions, 2 deletions
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 52c1db85452..d2b9f3bb87c 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -1,5 +1,64 @@
1#
2# linux/arch/x86/boot/compressed/Makefile
3#
4# create a compressed vmlinux image from the original vmlinux
5#
6
7targets := vmlinux vmlinux.bin vmlinux.bin.gz head_$(BITS).o misc.o piggy.o
8
9KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
10KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
11cflags-$(CONFIG_X86_64) := -mcmodel=small
12KBUILD_CFLAGS += $(cflags-y)
13KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
14KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
15
16KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
17
18LDFLAGS := -m elf_$(UTS_MACHINE)
19LDFLAGS_vmlinux := -T
20
21$(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/piggy.o FORCE
22 $(call if_changed,ld)
23 @:
24
25OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
26$(obj)/vmlinux.bin: vmlinux FORCE
27 $(call if_changed,objcopy)
28
29
1ifeq ($(CONFIG_X86_32),y) 30ifeq ($(CONFIG_X86_32),y)
2include ${srctree}/arch/x86/boot/compressed/Makefile_32 31targets += vmlinux.bin.all vmlinux.relocs
32hostprogs-y := relocs
33
34quiet_cmd_relocs = RELOCS $@
35 cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $<
36$(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE
37 $(call if_changed,relocs)
38
39vmlinux.bin.all-y := $(obj)/vmlinux.bin
40vmlinux.bin.all-$(CONFIG_RELOCATABLE) += $(obj)/vmlinux.relocs
41quiet_cmd_relocbin = BUILD $@
42 cmd_relocbin = cat $(filter-out FORCE,$^) > $@
43$(obj)/vmlinux.bin.all: $(vmlinux.bin.all-y) FORCE
44 $(call if_changed,relocbin)
45
46ifdef CONFIG_RELOCATABLE
47$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE
48 $(call if_changed,gzip)
3else 49else
4include ${srctree}/arch/x86/boot/compressed/Makefile_64 50$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
51 $(call if_changed,gzip)
5endif 52endif
53LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T
54
55else
56$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
57 $(call if_changed,gzip)
58
59LDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T
60endif
61
62
63$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
64 $(call if_changed,ld)