target/linux/adm5120/image/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 # Copyright 2007 Gabor Juhos <juhosg at openwrt.org>
  20 #   Modified to support user defined entry point address.
  21 #   Added support for make targets with different names
  22 #
  23
  24 LOADADDR        := 0x80001000
  25 LZMA_TEXT_START := 0x80500000
  26 LZMA_STARTUP_ORG:= 0
  27 LOADER_DATA     :=
  28 CONFIG_PASS_KARGS :=
  29 CONFIG_BOARD    :=
  30
  31 CC              := $(CROSS_COMPILE)gcc
  32 LD              := $(CROSS_COMPILE)ld
  33 OBJCOPY         := $(CROSS_COMPILE)objcopy
  34 OBJDUMP         := $(CROSS_COMPILE)objdump
  35
  36 BIN_FLAGS       := -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
  37
  38 CFLAGS          = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
  39                   -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
  40                   -ffunction-sections -pipe -mlong-calls -fno-common \
  41                   -ffreestanding \
  42                   -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap
  43 CFLAGS          += -DLOADADDR=$(LOADADDR) -D_LZMA_PROB32
  44
  45 ASFLAGS         = $(CFLAGS) -D__ASSEMBLY__ -DLZMA_STARTUP_ORG=$(LZMA_STARTUP_ORG)
  46
  47 LDFLAGS         = -static --gc-sections -no-warn-mismatch
  48 LDFLAGS         += -e startup -T loader.lds -Ttext $(LZMA_TEXT_START)
  49
  50 O_FORMAT        = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
  51
  52 OBJECTS         := head.o decompress.o board.o printf.o LzmaDecode.o
  53
  54 ifneq ($(strip $(LOADER_DATA)),)
  55 OBJECTS         += data.o
  56 CFLAGS          += -DLZMA_WRAPPER=1
  57 else
  58 CFLAGS          += -D_LZMA_IN_CB
  59 endif
  60
  61 ifneq ($(strip $(CONFIG_PASS_KARGS)),)
  62 CFLAGS          += -DCONFIG_PASS_KARGS
  63 endif
  64
  65 BOARD_DEF := $(strip $(CONFIG_BOARD))
  66 BOARD_DEF := $(shell echo $(BOARD_DEF) | tr a-z A-Z | tr -d -)
  67 ifneq ($(BOARD_DEF),)
  68 CFLAGS          += -DCONFIG_BOARD_$(BOARD_DEF)
  69 endif
  70
  71 all: loader.bin
  72
  73 # Don't build dependencies, this may die if $(CC) isn't gcc
  74 dep:
  75
  76 install:
  77
  78 %.o : %.c
  79         $(CC) $(CFLAGS) -c -o $@ $<
  80
  81 %.o : %.S
  82         $(CC) $(ASFLAGS) -c -o $@ $<
  83
  84 data.o: $(LOADER_DATA)
  85         $(LD) -r -b binary --oformat $(O_FORMAT) -T lzma-data.lds -o $@ $<
  86
  87 loader.bin: loader.elf
  88         $(OBJCOPY) $(BIN_FLAGS) $< $@
  89
  90 loader.elf: $(OBJECTS)
  91         $(LD) $(LDFLAGS) -o $@ $(OBJECTS)
  92
  93 mrproper: clean
  94
  95 clean:
  96         rm -f *.elf *.bin *.o
  97
  98
  99