target/linux/adm8668/image/lzma-loader/src/Makefile

   1 #
   2 # Copyright (C) 2010 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7 RAMSTART        = 0x80000000
   8 RAMSIZE         = 0x00800000            # 8MB
   9 LOADADDR        = 0x80400000            # RAM start + 4M
  10 KERNEL_ENTRY    = 0x80002000
  11
  12 CROSS_COMPILE = mipsel-openwrt-linux-
  13
  14 OBJCOPY:= $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
  15 CFLAGS := -I./include -fno-builtin -Os -G 0 -ffunction-sections -mno-abicalls -fno-pic -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap -Wall -DRAMSTART=${RAMSTART} -DRAMSIZE=${RAMSIZE} -DKERNEL_ENTRY=${KERNEL_ENTRY}
  16
  17 .c.o:
  18         $(CC) $(CFLAGS) -c $< -o $*.o
  19
  20 CC =       $(CROSS_COMPILE)gcc
  21 LD =       $(CROSS_COMPILE)ld
  22 OBJDUMP =  $(CROSS_COMPILE)objdump
  23
  24 O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
  25
  26 # Drop some uninteresting sections in the kernel.
  27 # This is only relevant for ELF kernels but doesn't hurt a.out
  28 drop-sections   = .reginfo .mdebug .comment
  29 strip-flags     = $(addprefix --remove-section=,$(drop-sections))
  30
  31 all : lzma.elf lzma.bin
  32
  33 lzma.lds: lzma.lds.in
  34         sed -e 's,@LOADADDR@,$(LOADADDR),g' $< >$@
  35
  36 kernel.o: vmlinux.lzma lzma.lds
  37         $(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $<
  38
  39 lzma.bin: lzma.elf
  40         $(OBJCOPY) $< $@
  41
  42 lzma.elf: decompress.o stubs.o LzmaDecode.o kernel.o lzma.lds
  43         $(LD) -T lzma.lds -o $@ $^
  44 #-s ^
  45
  46 clean:
  47         rm -f *.o lzma.elf lzma.bin *.tmp *.lds