include/image.mk

   1 #
   2 # Copyright (C) 2006 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7
   8 include $(INCLUDE_DIR)/prereq.mk
   9 include $(INCLUDE_DIR)/kernel.mk
  10 include $(INCLUDE_DIR)/host.mk
  11 KDIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
  12
  13 ifneq ($(CONFIG_BIG_ENDIAN),y)
  14 JFFS2OPTS     :=  --pad --little-endian --squash
  15 SQUASHFS_OPTS :=  -le
  16 else
  17 JFFS2OPTS     :=  --pad --big-endian --squash
  18 SQUASHFS_OPTS :=  -be
  19 endif
  20
  21 JFFS2_BLOCKSIZE ?= 64k 128k
  22
  23 define add_jffs2_mark
  24         echo -ne '\xde\xad\xc0\xde' >> $(1)
  25 endef
  26
  27 # pad to 64k and add jffs2 end-of-filesystem mark
  28 # do this twice to make sure that this works with 128k blocksize as well
  29 define prepare_generic_squashfs
  30         dd if=$(1) of=$(KDIR)/tmpfile.1 bs=64k conv=sync
  31         $(call add_jffs2_mark,$(KDIR)/tmpfile.1)
  32         dd of=$(1) if=$(KDIR)/tmpfile.1 bs=64k conv=sync
  33         $(call add_jffs2_mark,$(1))
  34 endef
  35
  36 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  37   ifeq ($(CONFIG_TARGET_ROOTFS_JFFS2),y)
  38     define Image/mkfs/jffs2/sub
  39                 # FIXME: removing this line will cause strange behaviour in the foreach loop below
  40                 $(STAGING_DIR)/bin/mkfs.jffs2 $(JFFS2OPTS) -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(1) -d $(BUILD_DIR)/root
  41                 $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(1))
  42                 $(call Image/Build,jffs2-$(1))
  43     endef
  44     define Image/mkfs/jffs2
  45                 rm -rf $(BUILD_DIR)/root/jffs
  46                 $(foreach SZ,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/sub,$(SZ)))
  47     endef
  48   endif
  49
  50   ifeq ($(CONFIG_TARGET_ROOTFS_SQUASHFS),y)
  51     define Image/mkfs/squashfs
  52                 @mkdir -p $(BUILD_DIR)/root/jffs
  53                 $(STAGING_DIR)/bin/mksquashfs-lzma $(BUILD_DIR)/root $(KDIR)/root.squashfs -nopad -noappend -root-owned $(SQUASHFS_OPTS)
  54                 $(call Image/Build,squashfs)
  55     endef
  56   endif
  57
  58   ifeq ($(CONFIG_TARGET_ROOTFS_TGZ),y)
  59     define Image/mkfs/tgz
  60                 $(TAR) -zcf $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-rootfs.tgz --owner=root --group=root -C $(BUILD_DIR)/root/ .
  61     endef
  62   endif
  63 else
  64   define Image/BuildKernel
  65         cp $(KDIR)/vmlinux.elf $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinux.elf
  66         $(call Image/Build/Initramfs)
  67   endef
  68 endif
  69
  70
  71 ifeq ($(CONFIG_TARGET_ROOTFS_EXT2FS),y)
  72   E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_FSPART)*1024)))
  73
  74   define Image/mkfs/ext2
  75                 $(STAGING_DIR)/bin/genext2fs -U -b $(E2SIZE) -I $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(BUILD_DIR)/root/ $(KDIR)/root.ext2
  76                 $(call Image/Build,ext2)
  77   endef
  78 endif
  79
  80
  81 define Image/mkfs/prepare/default
  82         find $(BUILD_DIR)/root -type f -not -perm +0100 -not -name 'ssh_host*' | $(XARGS) chmod 0644
  83         find $(BUILD_DIR)/root -type f -perm +0100 | $(XARGS) chmod 0755
  84         find $(BUILD_DIR)/root -type d | $(XARGS) chmod 0755
  85         mkdir -p $(BUILD_DIR)/root/tmp
  86         chmod 0777 $(BUILD_DIR)/root/tmp
  87 endef
  88
  89 define Image/mkfs/prepare
  90         $(call Image/mkfs/prepare/default)
  91 endef
  92
  93 define BuildImage
  94 download:
  95 prepare:
  96 ifneq ($(IB),1)
  97   compile: compile-targets
  98         $(call Build/Compile)
  99 else
 100   compile:
 101 endif
 102
 103 ifneq ($(IB),1)
 104   install: compile install-targets
 105         $(call Image/Prepare)
 106         $(call Image/mkfs/prepare)
 107         $(call Image/BuildKernel)
 108         $(call Image/mkfs/jffs2)
 109         $(call Image/mkfs/squashfs)
 110         $(call Image/mkfs/tgz)
 111         $(call Image/mkfs/ext2)
 112 else
 113   install: compile install-targets
 114         $(call Image/BuildKernel)
 115         $(call Image/mkfs/jffs2)
 116         $(call Image/mkfs/squashfs)
 117         $(call Image/mkfs/tgz)
 118         $(call Image/mkfs/ext2)
 119 endif
 120
 121 ifneq ($(IB),1)
 122   clean: clean-targets
 123         $(call Build/Clean)
 124 else
 125   clean:
 126 endif
 127
 128 compile-targets:
 129 install-targets:
 130 clean-targets:
 131 endef
 132
 133