kbuild: enable 'make AFLAGS=...' to add additional options to AS
[deliverable/linux.git] / arch / x86 / boot / compressed / Makefile_64
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b9fe6ce1 1#
9e9b4573 2# linux/arch/x86/boot/compressed/Makefile
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3#
4# create a compressed vmlinux image from the original vmlinux
5#
6
7targets := vmlinux vmlinux.bin vmlinux.bin.gz head_64.o misc_64.o piggy.o
8
a0f97e06 9KBUILD_CFLAGS := -m64 -D__KERNEL__ $(LINUXINCLUDE) -O2 \
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10 -fno-strict-aliasing -fPIC -mcmodel=small \
11 $(call cc-option, -ffreestanding) \
12 $(call cc-option, -fno-stack-protector)
222d394d 13KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
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14LDFLAGS := -m elf_x86_64
15
16LDFLAGS_vmlinux := -T
17$(obj)/vmlinux: $(src)/vmlinux_64.lds $(obj)/head_64.o $(obj)/misc_64.o $(obj)/piggy.o FORCE
18 $(call if_changed,ld)
19 @:
20
21$(obj)/vmlinux.bin: vmlinux FORCE
22 $(call if_changed,objcopy)
23
24$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
25 $(call if_changed,gzip)
26
27LDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T
28
29$(obj)/piggy.o: $(obj)/vmlinux_64.scr $(obj)/vmlinux.bin.gz FORCE
30 $(call if_changed,ld)
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