make aruba lzma loader more generic and move it to target/linux/image/generic/lzma-loader

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@3076 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 42 insertions, 0 deletions

diff --git a/target/linux/image/generic/lzma-loader/src/Makefile b/target/linux/image/generic/lzma-loader/src/Makefile
new file mode 100644
index 000000000..8dfd76a6a
--- /dev/null
+++ b/target/linux/image/generic/lzma-loader/src/Makefile
@@ -0,0 +1,42 @@
+LOADADDR = 0x80400000		# RAM start + 4M
+KERNEL_ENTRY = 0x80001000
+RAMSIZE = 0x00100000		# 1MB
+
+CROSS_COMPILE = mips-linux-
+
+.S.s:
+	$(CPP) $(CFLAGS) $< -o $*.s
+.S.o:
+	$(CC) $(CFLAGS) -c $< -o $*.o
+.c.o:
+	$(CC) $(CFLAGS) -c $< -o $*.o
+
+CC =       $(CROSS_COMPILE)gcc
+LD =       $(CROSS_COMPILE)ld
+OBJCOPY =  $(CROSS_COMPILE)objcopy
+OBJDUMP =  $(CROSS_COMPILE)objdump
+
+CFLAGS = -fno-builtin -Os -G 0 -mno-abicalls -fno-pic -Wall -DRAMSIZE=${RAMSIZE} -DKERNEL_ENTRY=${KERNEL_ENTRY} -D_LZMA_IN_CB
+# CFLAGS = -fno-builtin -Os -G 0 -mno-abicalls -fno-pic -Wall -DRAMSIZE=${RAMSIZE}
+
+O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
+
+# Drop some uninteresting sections in the kernel.
+# This is only relevant for ELF kernels but doesn't hurt a.out
+drop-sections   = .reginfo .mdebug .comment
+strip-flags     = $(addprefix --remove-section=,$(drop-sections))
+
+
+all : lzma.elf
+
+lzma.lds: lzma.lds.in
+	sed -e 's,@LOADADDR@,$(LOADADDR),g' $< >$@
+
+kernel.o: vmlinux.lzma lzma.lds
+	$(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $<
+
+lzma.elf: start.o decompress.o LzmaDecode.o kernel.o
+	$(LD) -s -Tlzma.lds -o $@ $^
+
+clean:
+	rm -f *.o lzma.elf