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-rw-r--r--arch/cris/arch-v32/boot/compressed/Makefile41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/cris/arch-v32/boot/compressed/Makefile b/arch/cris/arch-v32/boot/compressed/Makefile
new file mode 100644
index 0000000..9f77eda
--- /dev/null
+++ b/arch/cris/arch-v32/boot/compressed/Makefile
@@ -0,0 +1,41 @@
+#
+# lx25/arch/cris/arch-v32/boot/compressed/Makefile
+#
+# create a compressed vmlinux image from the original vmlinux files and romfs
+#
+
+target = $(target_compressed_dir)
+src = $(src_compressed_dir)
+
+CC = gcc-cris -mlinux -march=v32 -I $(TOPDIR)/include
+CFLAGS = -O2
+LD = gcc-cris -mlinux -march=v32 -nostdlib
+OBJCOPY = objcopy-cris
+OBJCOPYFLAGS = -O binary --remove-section=.bss
+OBJECTS = $(target)/head.o $(target)/misc.o
+
+# files to compress
+SYSTEM = $(objtree)/vmlinux.bin
+
+all: vmlinuz
+
+$(target)/decompress.bin: $(OBJECTS)
+ $(LD) -T $(src)/decompress.ld -o $(target)/decompress.o $(OBJECTS)
+ $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/decompress.o $(target)/decompress.bin
+
+$(objtree)/vmlinuz: $(target) piggy.img $(target)/decompress.bin
+ cat $(target)/decompress.bin piggy.img > $(objtree)/vmlinuz
+ rm -f piggy.img
+ cp $(objtree)/vmlinuz $(src)
+
+$(target)/head.o: $(src)/head.S
+ $(CC) -D__ASSEMBLY__ -c $< -o $@
+
+# gzip the kernel image
+
+piggy.img: $(SYSTEM)
+ cat $(SYSTEM) | gzip -f -9 > piggy.img
+
+clean:
+ rm -f piggy.img $(objtree)/vmlinuz vmlinuz.o decompress.o decompress.bin $(OBJECTS)
+
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