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#
# linux/arch/mips/boot/compressed/Makefile
#
# create a compressed zImage from the original vmlinux
#
targets := zImage vmlinuz vmlinux.bin.gz head.o misc.o piggy.o dummy.o
OBJS := $(obj)/head.o $(obj)/misc.o
LD_ARGS := -T $(obj)/ld.script -Ttext 0x80600000 -Bstatic
OBJCOPY_ARGS := -O elf32-tradlittlemips
ENTRY := $(obj)/../tools/entry
FILESIZE := $(obj)/../tools/filesize
drop-sections = .reginfo .mdebug .comment .note .pdr .options .MIPS.options
strip-flags = $(addprefix --remove-section=,$(drop-sections))
$(obj)/vmlinux.bin.gz: vmlinux
rm -f $(obj)/vmlinux.bin.gz
$(OBJCOPY) -O binary $(strip-flags) vmlinux $(obj)/vmlinux.bin
gzip -v9f $(obj)/vmlinux.bin
$(obj)/head.o: $(obj)/head.S $(obj)/vmlinux.bin.gz vmlinux
$(CC) $(KBUILD_AFLAGS) \
-DIMAGESIZE=$(shell sh $(FILESIZE) $(obj)/vmlinux.bin.gz) \
-DKERNEL_ENTRY=$(shell sh $(ENTRY) $(NM) vmlinux ) \
-DLOADADDR=$(loadaddr) \
-c -o $(obj)/head.o $<
$(obj)/vmlinuz: $(OBJS) $(obj)/ld.script $(obj)/vmlinux.bin.gz $(obj)/dummy.o
$(OBJCOPY) \
--add-section=.image=$(obj)/vmlinux.bin.gz \
--set-section-flags=.image=contents,alloc,load,readonly,data \
$(obj)/dummy.o $(obj)/piggy.o
$(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/piggy.o
$(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab -R .stabstr -R .initrd -R .sysmap
zImage: $(obj)/vmlinuz
$(OBJCOPY) -O binary $(obj)/vmlinuz $(obj)/zImage
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