1622ac23bd
Do this rather than defining a global version and overriding it in almost all cases in order to make subsequent patches simpler. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
65 lines
1.8 KiB
Makefile
65 lines
1.8 KiB
Makefile
#
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# linux/arch/x86/boot/compressed/Makefile
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#
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# create a compressed vmlinux image from the original vmlinux
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#
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targets := vmlinux vmlinux.bin vmlinux.bin.gz head_$(BITS).o misc.o piggy.o
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KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
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KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
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cflags-$(CONFIG_X86_64) := -mcmodel=small
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KBUILD_CFLAGS += $(cflags-y)
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KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
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KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
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KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
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LDFLAGS := -m elf_$(UTS_MACHINE)
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LDFLAGS_vmlinux := -T
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$(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/piggy.o FORCE
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$(call if_changed,ld)
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@:
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OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
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$(obj)/vmlinux.bin: vmlinux FORCE
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$(call if_changed,objcopy)
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ifeq ($(CONFIG_X86_32),y)
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targets += vmlinux.bin.all vmlinux.relocs
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hostprogs-y := relocs
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quiet_cmd_relocs = RELOCS $@
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cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $<
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$(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE
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$(call if_changed,relocs)
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vmlinux.bin.all-y := $(obj)/vmlinux.bin
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vmlinux.bin.all-$(CONFIG_RELOCATABLE) += $(obj)/vmlinux.relocs
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quiet_cmd_relocbin = BUILD $@
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cmd_relocbin = cat $(filter-out FORCE,$^) > $@
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$(obj)/vmlinux.bin.all: $(vmlinux.bin.all-y) FORCE
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$(call if_changed,relocbin)
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ifdef CONFIG_RELOCATABLE
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$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE
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$(call if_changed,gzip)
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else
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$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,gzip)
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endif
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LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T
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else
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$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,gzip)
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LDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T
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endif
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$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
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$(call if_changed,ld)
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