diff options
Diffstat (limited to 'arch/x86_64/boot/compressed/Makefile')
| -rw-r--r-- | arch/x86_64/boot/compressed/Makefile | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/x86_64/boot/compressed/Makefile b/arch/x86_64/boot/compressed/Makefile new file mode 100644 index 00000000000..f89d96f11a9 --- /dev/null +++ b/arch/x86_64/boot/compressed/Makefile @@ -0,0 +1,32 @@ +# +# linux/arch/x86_64/boot/compressed/Makefile +# +# create a compressed vmlinux image from the original vmlinux +# +# Note all the files here are compiled/linked as 32bit executables. +# + +targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o +EXTRA_AFLAGS := -traditional -m32 + +# cannot use EXTRA_CFLAGS because base CFLAGS contains -mkernel which conflicts with +# -m32 +CFLAGS := -m32 -D__KERNEL__ -Iinclude -O2 -fno-strict-aliasing +LDFLAGS := -m elf_i386 + +LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup_32 -m elf_i386 + +$(obj)/vmlinux: $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE + $(call if_changed,ld) + @: + +$(obj)/vmlinux.bin: vmlinux FORCE + $(call if_changed,objcopy) + +$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE + $(call if_changed,gzip) + +LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T + +$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE + $(call if_changed,ld) |