include/image.mk

   1 #
   2 # Copyright (C) 2006-2010 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7
   8 override TARGET_BUILD=
   9 include $(INCLUDE_DIR)/prereq.mk
  10 include $(INCLUDE_DIR)/kernel.mk
  11 include $(INCLUDE_DIR)/host.mk
  12
  13 .NOTPARALLEL:
  14 override MAKEFLAGS=
  15 override MAKE:=$(SUBMAKE)
  16 KDIR=$(KERNEL_BUILD_DIR)
  17
  18 IMG_PREFIX:=openwrt-$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))
  19
  20 ifneq ($(CONFIG_BIG_ENDIAN),)
  21   JFFS2OPTS     :=  --pad --big-endian --squash-uids -v
  22 else
  23   JFFS2OPTS     :=  --pad --little-endian --squash-uids -v
  24 endif
  25
  26 ifeq ($(CONFIG_JFFS2_RTIME),y)
  27   JFFS2OPTS += -X rtime
  28 endif
  29 ifeq ($(CONFIG_JFFS2_ZLIB),y)
  30   JFFS2OPTS += -X zlib
  31 endif
  32 ifeq ($(CONFIG_JFFS2_LZMA),y)
  33   JFFS2OPTS += -X lzma --compression-mode=size
  34 endif
  35 ifneq ($(CONFIG_JFFS2_RTIME),y)
  36   JFFS2OPTS +=  -x rtime
  37 endif
  38 ifneq ($(CONFIG_JFFS2_ZLIB),y)
  39   JFFS2OPTS += -x zlib
  40 endif
  41 ifneq ($(CONFIG_JFFS2_LZMA),y)
  42   JFFS2OPTS += -x lzma
  43 endif
  44
  45 SQUASHFS_BLOCKSIZE := 256k
  46 SQUASHFSOPT := -b $(SQUASHFS_BLOCKSIZE)
  47 SQUASHFSCOMP := gzip
  48 LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2
  49 ifeq ($(CONFIG_SQUASHFS_LZMA),y)
  50   SQUASHFSCOMP := lzma $(LZMA_XZ_OPTIONS)
  51 endif
  52 ifeq ($(CONFIG_SQUASHFS_XZ),y)
  53   ifneq ($(filter arm x86 powerpc sparc,$(LINUX_KARCH)),)
  54     BCJ_FILTER:=-Xbcj $(LINUX_KARCH)
  55   endif
  56   SQUASHFSCOMP := xz $(LZMA_XZ_OPTIONS) $(BCJ_FILTER)
  57 endif
  58
  59 JFFS2_BLOCKSIZE ?= 64k 128k
  60
  61 define add_jffs2_mark
  62         echo -ne '\xde\xad\xc0\xde' >> $(1)
  63 endef
  64
  65 # pad to 4k, 8k, 64k, 128k 256k and add jffs2 end-of-filesystem mark
  66 define prepare_generic_squashfs
  67         $(STAGING_DIR_HOST)/bin/padjffs2 $(1) 4 8 64 128 256
  68 endef
  69
  70
  71 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
  72
  73   define Image/BuildKernel
  74                 cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux.elf
  75                 $(call Image/Build/Initramfs)
  76   endef
  77
  78 else
  79
  80   ifneq ($(CONFIG_TARGET_ROOTFS_JFFS2),)
  81     define Image/mkfs/jffs2/sub
  82                 # FIXME: removing this line will cause strange behaviour in the foreach loop below
  83                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 $(JFFS2OPTS) -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(1) -d $(TARGET_DIR) -v 2>&1 1>/dev/null | awk '/^.+$$$$/'
  84                 $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(1))
  85                 $(call Image/Build,jffs2-$(1))
  86     endef
  87     define Image/mkfs/jffs2
  88                 $(foreach SZ,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/sub,$(SZ)))
  89     endef
  90   endif
  91
  92   ifneq ($(CONFIG_TARGET_ROOTFS_SQUASHFS),)
  93     define Image/mkfs/squashfs
  94                 @mkdir -p $(TARGET_DIR)/overlay
  95                 $(STAGING_DIR_HOST)/bin/mksquashfs4 $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned -comp $(SQUASHFSCOMP) $(SQUASHFSOPT) -processors $(if $(CONFIG_PKG_BUILD_JOBS),$(CONFIG_PKG_BUILD_JOBS),1)
  96                 $(call Image/Build,squashfs)
  97     endef
  98   endif
  99
 100   ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
 101     define Image/mkfs/ubifs
 102                 $(CP) ./ubinize.cfg $(KDIR)
 103                 $(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) -o $(KDIR)/root.ubifs -d $(TARGET_DIR)
 104                 $(call Image/Build,ubifs)
 105                 (cd $(KDIR); \
 106                 $(STAGING_DIR_HOST)/bin/ubinize $(UBINIZE_OPTS) -o $(KDIR)/root.ubi ubinize.cfg)
 107                 $(call Image/Build,ubi)
 108     endef
 109   endif
 110
 111 endif
 112
 113 ifneq ($(CONFIG_TARGET_ROOTFS_CPIOGZ),)
 114   define Image/mkfs/cpiogz
 115                 ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9 >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
 116   endef
 117 endif
 118
 119 ifneq ($(CONFIG_TARGET_ROOTFS_TARGZ),)
 120   define Image/mkfs/targz
 121                 # Preserve permissions (-p) when building as non-root user
 122                 $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)-rootfs.tar.gz --numeric-owner --owner=0 --group=0 -C $(TARGET_DIR)/ .
 123   endef
 124 endif
 125
 126 ifneq ($(CONFIG_TARGET_ROOTFS_EXT4FS),)
 127   E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024)))
 128
 129   define Image/mkfs/ext4
 130 # generate an ext2 fs
 131         $(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4 -m $(CONFIG_TARGET_ROOTFS_RESERVED_PCT)
 132 # convert it to ext4
 133         $(STAGING_DIR_HOST)/bin/tune2fs -O extents,uninit_bg,dir_index $(KDIR)/root.ext4
 134 # fix it up
 135         $(STAGING_DIR_HOST)/bin/e2fsck -fy $(KDIR)/root.ext4
 136         $(call Image/Build,ext4)
 137   endef
 138 endif
 139
 140 ifneq ($(CONFIG_TARGET_ROOTFS_ISO),)
 141   define Image/mkfs/iso
 142                 $(call Image/Build,iso)
 143   endef
 144 endif
 145
 146
 147 define Image/mkfs/prepare/default
 148         # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
 149         - $(FIND) $(TARGET_DIR) -type f -not -perm +0100 -not -name 'ssh_host*' -not -name 'shadow' -print0 | $(XARGS) -0 chmod u+rw,g+r,o+r
 150         - $(FIND) $(TARGET_DIR) -type f -perm +0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 151         - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 152         $(INSTALL_DIR) $(TARGET_DIR)/tmp
 153         chmod 1777 $(TARGET_DIR)/tmp
 154 endef
 155
 156 define Image/mkfs/prepare
 157         $(call Image/mkfs/prepare/default)
 158 endef
 159
 160
 161 define Image/Checksum
 162         ( cd ${BIN_DIR} ; \
 163                 $(FIND) -maxdepth 1 -type f \! -name 'md5sums'  -printf "%P\n" | sort | xargs \
 164                 md5sum --binary > md5sums \
 165         )
 166 endef
 167
 168
 169 define BuildImage
 170
 171   download:
 172   prepare:
 173
 174   ifeq ($(IB),)
 175     compile: compile-targets FORCE
 176                 $(call Build/Compile)
 177   else
 178     compile:
 179   endif
 180
 181   ifeq ($(IB),)
 182     install: compile install-targets FORCE
 183                 $(call Image/Prepare)
 184                 $(call Image/mkfs/prepare)
 185                 $(call Image/BuildKernel)
 186                 $(call Image/mkfs/cpiogz)
 187                 $(call Image/mkfs/targz)
 188                 $(call Image/mkfs/ext4)
 189                 $(call Image/mkfs/iso)
 190                 $(call Image/mkfs/jffs2)
 191                 $(call Image/mkfs/squashfs)
 192                 $(call Image/mkfs/ubifs)
 193                 $(call Image/Checksum)
 194   else
 195     install: compile install-targets
 196                 $(call Image/BuildKernel)
 197                 $(call Image/mkfs/cpiogz)
 198                 $(call Image/mkfs/targz)
 199                 $(call Image/mkfs/ext4)
 200                 $(call Image/mkfs/iso)
 201                 $(call Image/mkfs/jffs2)
 202                 $(call Image/mkfs/squashfs)
 203                 $(call Image/mkfs/ubifs)
 204                 $(call Image/Checksum)
 205   endif
 206
 207   ifeq ($(IB),)
 208     clean: clean-targets
 209                 $(call Build/Clean)
 210   else
 211     clean:
 212   endif
 213
 214   compile-targets:
 215   install-targets:
 216   clean-targets:
 217
 218 endef