openwrt/target/linux/image/ar7/Makefile

   1 include $(TOPDIR)/rules.mk
   2
   3 KDIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
   4
   5 PKG_BUILD_DIR:=$(BUILD_DIR)/ar7loader
   6
   7 ifeq ($(IB),)
   8 LOADADDR := 0x94020000
   9 KERNEL_ENTRY := 0x${shell nm $(KDIR)/linux-$(KERNEL)*/vmlinux | grep kernel_entry | cut -d' ' -f1}
  10 OUTPUT_FORMAT := elf32-tradlittlemips
  11
  12 CFLAGS := -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
  13         -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
  14         -pipe -mlong-calls -fno-common \
  15         -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap \
  16         -DLOADADDR=$(LOADADDR)
  17
  18
  19 $(PKG_BUILD_DIR):
  20         mkdir -p $(PKG_BUILD_DIR)
  21
  22 $(PKG_BUILD_DIR)/zimage.script: src/zimage.script.in
  23         sed -e 's/@@OUTPUT_FORMAT@@/$(OUTPUT_FORMAT)/' \
  24             -e 's/@@LOADADDR@@/$(LOADADDR)/' <$< >$@
  25
  26 $(PKG_BUILD_DIR)/ld.script: src/ld.script.in
  27         sed -e 's/@@OUTPUT_FORMAT@@/$(OUTPUT_FORMAT)/' \
  28             -e 's/@@LOADADDR@@/$(LOADADDR)/' <$< >$@
  29
  30 $(PKG_BUILD_DIR)/cksum.o: $(PKG_BUILD_DIR)/cksum.c
  31         $(HOSTCC) -o $@ $<
  32
  33 $(PKG_BUILD_DIR)/ckmain.o: $(PKG_BUILD_DIR)/ckmain.c
  34         $(HOSTCC) -o $@ $<
  35
  36 $(PKG_BUILD_DIR)/tichksum: $(PKG_BUILD_DIR)/ckmain.o $(PKG_BUILD_DIR)/cksum.o
  37         $(HOSTCC) -o $@ $<
  38
  39 $(PKG_BUILD_DIR)/LzmaDecode.o: src/LzmaDecode.c
  40         $(TARGET_CC) $(CFLAGS) -c -o $@ $<
  41
  42 $(PKG_BUILD_DIR)/loader.o: src/loader.c
  43         $(TARGET_CC) $(CFLAGS) -c -o $@ $<
  44
  45 $(STAGING_DIR)/bin/srec2bin: src/srec2bin.c
  46         $(HOSTCC) -o $@ $<
  47
  48 $(KDIR)/vmlinux.lzma: $(KDIR)/vmlinux
  49         cat $^ | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $@ || (rm -f $@ && false)
  50
  51 $(KDIR)/vmlinux.bin: $(KDIR)/vmlinux.lzma compile
  52         $(TARGET_CROSS)ld -T $(PKG_BUILD_DIR)/zimage.script -r -b binary $< -o $(KDIR)/zimage.o
  53         $(TARGET_CROSS)ld -static -G 0 --defsym kernel_entry=$(KERNEL_ENTRY) -T $(PKG_BUILD_DIR)/ld.script \
  54                 $(PKG_BUILD_DIR)/loader.o \
  55                 $(PKG_BUILD_DIR)/LzmaDecode.o \
  56                 $(KDIR)/zimage.o \
  57                 -o $(KDIR)/loader
  58         $(TARGET_CROSS)objcopy -O srec $(KDIR)/loader $(KDIR)/ram_zimage.sre
  59         $(STAGING_DIR)/bin/srec2bin $(KDIR)/ram_zimage.sre $@
  60
  61 $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-kernel.bin: $(KDIR)/vmlinux.bin
  62 endif
  63
  64 $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-kernel.bin:
  65         $(CP) $(KDIR)/vmlinux.bin $@
  66
  67 ifeq ($(FS),jffs2-8MB)
  68 ALIGN:=bs=131072 conv=sync
  69 endif
  70 ifeq ($(FS),jffs2-4MB)
  71 ALIGN:=bs=65536 conv=sync
  72 endif
  73
  74 $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS).bin: $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-kernel.bin
  75         dd if=$< $(ALIGN) > $@
  76         cat $(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)/root.$(FS) >> $@
  77
  78 define pattern_template
  79 $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS)-$(1).bin: $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS).bin
  80         (dd if=/dev/zero bs=16 count=1; cat $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS).bin) | \
  81                 $(STAGING_DIR)/bin/addpattern -p $(1) $(2) -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS)-$(1).bin
  82
  83 install: $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS)-$(1).bin
  84 endef
  85
  86 $(eval $(call pattern_template,AG1B))
  87 $(eval $(call pattern_template,WA22))
  88 $(eval $(call pattern_template,WAG2))
  89 $(eval $(call pattern_template,WA21))
  90 $(eval $(call pattern_template,WA31,-b))
  91 $(eval $(call pattern_template,WA32,-b))
  92
  93 ifeq ($(IB),)
  94 clean:
  95         rm -rf $(PKG_BUILD_DIR)
  96         rm -f $(BIN_DIR)/openwrt-$(BOARD)*
  97
  98 prepare: $(PKG_BUILD_DIR) $(PKG_BUILD_DIR)/zimage.script $(PKG_BUILD_DIR)/ld.script
  99 compile: prepare $(PKG_BUILD_DIR)/loader.o $(PKG_BUILD_DIR)/LzmaDecode.o $(STAGING_DIR)/bin/srec2bin
 100 else
 101 clean:
 102 prepare:
 103 compile:
 104 endif
 105
 106 install: $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-kernel.bin $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS).bin
 107 install-ib:
 108         mkdir -p $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)
 109         $(CP) $(KDIR)/vmlinux.bin $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)/
 110         mkdir -p $(IB_DIR)/staging_dir_$(ARCH)
 111         $(CP) $(STAGING_DIR)/bin/addpattern $(IB_DIR)/staging_dir_$(ARCH)/bin/
 112