openwrt/target/linux/image/brcm/lzma-loader/src/Makefile

   1 #
   2 # Makefile for Broadcom BCM947XX boards
   3 #
   4 # Copyright 2001-2003, Broadcom Corporation
   5 # All Rights Reserved.
   6 #
   7 # THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
   8 # KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
   9 # SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  10 # FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  11 #
  12 # Copyright 2004  Manuel Novoa III <mjn3@codepoet.org>
  13 #   Modified to support bzip'd kernels.
  14 #   Of course, it would be better to integrate bunzip capability into CFE.
  15 #
  16 # Copyright 2005  Oleg I. Vdovikin <oleg@cs.msu.su>
  17 #   Cleaned up, modified for lzma support, removed from kernel
  18 #
  19
  20 TEXT_START      := 0x80001000
  21 BZ_TEXT_START   := 0x80300000
  22
  23 OBJCOPY         := $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
  24
  25 CFLAGS          = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
  26                   -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
  27                   -ffunction-sections -pipe -mlong-calls -fno-common \
  28                   -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap
  29 CFLAGS          += -DLOADADDR=$(TEXT_START) -D_LZMA_IN_CB
  30
  31 ASFLAGS         = $(CFLAGS) -D__ASSEMBLY__ -DBZ_TEXT_START=$(BZ_TEXT_START)
  32
  33 SEDFLAGS        := s/BZ_TEXT_START/$(BZ_TEXT_START)/;s/TEXT_START/$(TEXT_START)/
  34
  35 OBJECTS         := head.o data.o
  36
  37 all: loader.gz
  38
  39 # Don't build dependencies, this may die if $(CC) isn't gcc
  40 dep:
  41
  42 install:
  43
  44 loader.gz: loader
  45         gzip -nc9 $< > $@
  46
  47 loader: loader.o
  48         $(OBJCOPY) $< $@
  49
  50 loader.o: loader.lds $(OBJECTS)
  51         $(LD) -static --gc-sections -no-warn-mismatch -T loader.lds -o $@ $(OBJECTS)
  52
  53 loader.lds: loader.lds.in Makefile
  54         @sed "$(SEDFLAGS)" < $< > $@
  55
  56 data.o: data.lds decompress.image
  57         $(LD) -no-warn-mismatch -T data.lds -r -o $@ -b binary decompress.image -b elf32-tradlittlemips
  58
  59 data.lds:
  60         @echo "SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}" > $@
  61
  62 decompress.image: decompress
  63         $(OBJCOPY) $< $@
  64
  65 decompress: decompress.lds decompress.o LzmaDecode.o
  66         $(LD) -static --gc-sections -no-warn-mismatch -T decompress.lds -o $@ decompress.o LzmaDecode.o
  67
  68 decompress.lds: decompress.lds.in Makefile
  69         @sed "$(SEDFLAGS)" < $< > $@
  70
  71 mrproper: clean
  72
  73 clean:
  74         rm -f loader.gz loader decompress *.lds *.o *.image