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 ($(CONFIG_BIG_ENDIAN),)
  21   JFFS2OPTS     :=  --pad --big-endian --squash -v
  22 else
  23   JFFS2OPTS     :=  --pad --little-endian --squash -v
  24 endif
  25
  26 ifeq ($(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 JFFS2_BLOCKSIZE ?= 64k 128k
  46
  47 define add_jffs2_mark
  48         echo -ne '\xde\xad\xc0\xde' >> $(1)
  49 endef
  50
  51 # pad to 4k, 8k, 64k, 128k and add jffs2 end-of-filesystem mark
  52 define prepare_generic_squashfs
  53         dd if=$(1) of=$(KDIR)/tmpfile.0 bs=4k conv=sync
  54         $(call add_jffs2_mark,$(KDIR)/tmpfile.0)
  55         dd if=$(KDIR)/tmpfile.0 of=$(KDIR)/tmpfile.1 bs=4k conv=sync
  56         $(call add_jffs2_mark,$(KDIR)/tmpfile.1)
  57         dd if=$(KDIR)/tmpfile.1 of=$(KDIR)/tmpfile.2 bs=64k conv=sync
  58         $(call add_jffs2_mark,$(KDIR)/tmpfile.2)
  59         dd if=$(KDIR)/tmpfile.2 of=$(1) bs=64k conv=sync
  60         $(call add_jffs2_mark,$(1))
  61         rm -f $(KDIR)/tmpfile.*
  62 endef
  63
  64
  65 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
  66
  67   define Image/BuildKernel
  68                 cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux.elf
  69                 $(call Image/Build/Initramfs)
  70   endef
  71
  72 else
  73
  74   ifneq ($(CONFIG_TARGET_ROOTFS_JFFS2),)
  75     define Image/mkfs/jffs2/sub
  76                 # FIXME: removing this line will cause strange behaviour in the foreach loop below
  77                 $(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 '/^.+$$$$/'
  78                 $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(1))
  79                 $(call Image/Build,jffs2-$(1))
  80     endef
  81     define Image/mkfs/jffs2
  82                 $(foreach SZ,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/sub,$(SZ)))
  83     endef
  84   endif
  85
  86   ifneq ($(CONFIG_TARGET_ROOTFS_SQUASHFS),)
  87     define Image/mkfs/squashfs
  88                 @mkdir -p $(TARGET_DIR)/overlay
  89                 $(STAGING_DIR_HOST)/bin/mksquashfs4 $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned -comp lzma -processors 1
  90                 $(call Image/Build,squashfs)
  91     endef
  92   endif
  93
  94   ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
  95     define Image/mkfs/ubifs
  96                 $(CP) ./ubinize.cfg $(KDIR)
  97                 $(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) -o $(KDIR)/root.ubifs -d $(TARGET_DIR)
  98                 (cd $(KDIR); \
  99                 $(STAGING_DIR_HOST)/bin/ubinize $(UBINIZE_OPTS) -o $(KDIR)/root.ubi ubinize.cfg)
 100                 $(call Image/Build,ubi)
 101     endef
 102   endif
 103
 104 endif
 105
 106 ifneq ($(CONFIG_TARGET_ROOTFS_CPIOGZ),)
 107   define Image/mkfs/cpiogz
 108                 ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9 >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
 109   endef
 110 endif
 111
 112 ifneq ($(CONFIG_TARGET_ROOTFS_TARGZ),)
 113   define Image/mkfs/targz
 114                 # Preserve permissions (-p) when building as non-root user
 115                 $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)-rootfs.tar.gz --numeric-owner --owner=0 --group=0 -C $(TARGET_DIR)/ .
 116   endef
 117 endif
 118
 119 ifneq ($(CONFIG_TARGET_ROOTFS_EXT4FS),)
 120   E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024)))
 121
 122   define Image/mkfs/ext4
 123 # generate an ext2 fs
 124         $(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4
 125 # convert it to ext4
 126         $(STAGING_DIR_HOST)/bin/tune2fs -O extents,uninit_bg,dir_index $(KDIR)/root.ext4
 127 # fix it up
 128         $(STAGING_DIR_HOST)/bin/e2fsck -fy $(KDIR)/root.ext4
 129         $(call Image/Build,ext4)
 130   endef
 131 endif
 132
 133 ifneq ($(CONFIG_TARGET_ROOTFS_ISO),)
 134   define Image/mkfs/iso
 135                 $(call Image/Build,iso)
 136   endef
 137 endif
 138
 139
 140 define Image/mkfs/prepare/default
 141         # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
 142         - $(FIND) $(TARGET_DIR) -type f -not -perm +0100 -not -name 'ssh_host*' -print0 | $(XARGS) -0 chmod u+rw,g+r,o+r
 143         - $(FIND) $(TARGET_DIR) -type f -perm +0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 144         - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 145         $(INSTALL_DIR) $(TARGET_DIR)/tmp
 146         chmod 0777 $(TARGET_DIR)/tmp
 147 endef
 148
 149 define Image/mkfs/prepare
 150         $(call Image/mkfs/prepare/default)
 151 endef
 152
 153
 154 define Image/Checksum
 155         ( cd ${BIN_DIR} ; \
 156                 $(FIND) -maxdepth 1 -type f \! -name 'md5sums'  -printf "%P\n" | sort | xargs \
 157                 md5sum --binary > md5sums \
 158         )
 159 endef
 160
 161
 162 define BuildImage
 163
 164   download:
 165   prepare:
 166
 167   ifeq ($(IB),)
 168     compile: compile-targets FORCE
 169                 $(call Build/Compile)
 170   else
 171     compile:
 172   endif
 173
 174   ifeq ($(IB),)
 175     install: compile install-targets FORCE
 176                 $(call Image/Prepare)
 177                 $(call Image/mkfs/prepare)
 178                 $(call Image/BuildKernel)
 179                 $(call Image/mkfs/cpiogz)
 180                 $(call Image/mkfs/targz)
 181                 $(call Image/mkfs/ext4)
 182                 $(call Image/mkfs/iso)
 183                 $(call Image/mkfs/jffs2)
 184                 $(call Image/mkfs/squashfs)
 185                 $(call Image/mkfs/ubifs)
 186                 $(call Image/Checksum)
 187   else
 188     install: compile install-targets
 189                 $(call Image/BuildKernel)
 190                 $(call Image/mkfs/cpiogz)
 191                 $(call Image/mkfs/targz)
 192                 $(call Image/mkfs/ext4)
 193                 $(call Image/mkfs/iso)
 194                 $(call Image/mkfs/jffs2)
 195                 $(call Image/mkfs/squashfs)
 196                 $(call Image/mkfs/ubifs)
 197                 $(call Image/Checksum)
 198   endif
 199
 200   ifeq ($(IB),)
 201     clean: clean-targets
 202                 $(call Build/Clean)
 203   else
 204     clean:
 205   endif
 206
 207   compile-targets:
 208   install-targets:
 209   clean-targets:
 210
 211 endef