Merge branch 'adm8668'

[openwrt.git] / target / linux / adm8668 / image / lzma-loader / src / Makefile

diff --git a/target/linux/adm8668/image/lzma-loader/src/Makefile b/target/linux/adm8668/image/lzma-loader/src/Makefile
new file mode 100644 (file)
index 0000000..c1be46f
--- /dev/null
+++ b/target/linux/adm8668/image/lzma-loader/src/Makefile
@@ -0,0 +1,47 @@
+#
+# Copyright (C) 2010 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+RAMSTART       = 0x80000000
+RAMSIZE                = 0x00800000            # 1MB
+LOADADDR       = 0x80400000            # RAM start + 4M
+KERNEL_ENTRY   = 0x80002000
+
+CROSS_COMPILE = mipsel-openwrt-linux-
+
+OBJCOPY:= $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
+CFLAGS := -I./include -fno-builtin -Os -G 0 -ffunction-sections -mno-abicalls -fno-pic -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap -Wall -DRAMSTART=${RAMSTART} -DRAMSIZE=${RAMSIZE} -DKERNEL_ENTRY=${KERNEL_ENTRY}
+
+.c.o:
+       $(CC) $(CFLAGS) -c $< -o $*.o
+
+CC =       $(CROSS_COMPILE)gcc
+LD =       $(CROSS_COMPILE)ld
+OBJDUMP =  $(CROSS_COMPILE)objdump
+
+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.bin
+
+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.bin: lzma.elf
+       $(OBJCOPY) $< $@
+
+lzma.elf: decompress.o stubs.o LzmaDecode.o kernel.o lzma.lds
+       $(LD) -T lzma.lds -o $@ $^
+#-s ^
+
+clean:
+       rm -f *.o lzma.elf lzma.bin *.tmp *.lds