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 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   SQUASHFSCOMP := xz $(LZMA_XZ_OPTIONS)
  54 endif
  55
  56 JFFS2_BLOCKSIZE ?= 64k 128k
  57
  58 define add_jffs2_mark
  59         echo -ne '\xde\xad\xc0\xde' >> $(1)
  60 endef
  61
  62 # pad to 4k, 8k, 64k, 128k 256k and add jffs2 end-of-filesystem mark
  63 define prepare_generic_squashfs
  64         $(STAGING_DIR_HOST)/bin/padjffs2 $(1) 4 8 64 128 256
  65 endef
  66
  67
  68 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
  69
  70   define Image/BuildKernel
  71                 cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux.elf
  72                 $(call Image/Build/Initramfs)
  73   endef
  74
  75 else
  76
  77   ifneq ($(CONFIG_TARGET_ROOTFS_JFFS2),)
  78     define Image/mkfs/jffs2/sub
  79                 # FIXME: removing this line will cause strange behaviour in the foreach loop below
  80                 $(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 '/^.+$$$$/'
  81                 $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(1))
  82                 $(call Image/Build,jffs2-$(1))
  83     endef
  84     define Image/mkfs/jffs2
  85                 $(foreach SZ,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/sub,$(SZ)))
  86     endef
  87   endif
  88
  89   ifneq ($(CONFIG_TARGET_ROOTFS_SQUASHFS),)
  90     define Image/mkfs/squashfs
  91                 @mkdir -p $(TARGET_DIR)/overlay
  92                 $(STAGING_DIR_HOST)/bin/mksquashfs4 $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned -comp $(SQUASHFSCOMP) $(SQUASHFSOPT) -processors $(if $(CONFIG_PKG_BUILD_JOBS),$(CONFIG_PKG_BUILD_JOBS),1)
  93                 $(call Image/Build,squashfs)
  94     endef
  95   endif
  96
  97   ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
  98     define Image/mkfs/ubifs
  99                 $(CP) ./ubinize.cfg $(KDIR)
 100                 $(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) -o $(KDIR)/root.ubifs -d $(TARGET_DIR)
 101                 (cd $(KDIR); \
 102                 $(STAGING_DIR_HOST)/bin/ubinize $(UBINIZE_OPTS) -o $(KDIR)/root.ubi ubinize.cfg)
 103                 $(call Image/Build,ubi)
 104     endef
 105   endif
 106
 107 endif
 108
 109 ifneq ($(CONFIG_TARGET_ROOTFS_CPIOGZ),)
 110   define Image/mkfs/cpiogz
 111                 ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9 >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
 112   endef
 113 endif
 114
 115 ifneq ($(CONFIG_TARGET_ROOTFS_TARGZ),)
 116   define Image/mkfs/targz
 117                 # Preserve permissions (-p) when building as non-root user
 118                 $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)-rootfs.tar.gz --numeric-owner --owner=0 --group=0 -C $(TARGET_DIR)/ .
 119   endef
 120 endif
 121
 122 ifneq ($(CONFIG_TARGET_ROOTFS_EXT4FS),)
 123   E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024)))
 124
 125   define Image/mkfs/ext4
 126 # generate an ext2 fs
 127         $(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4
 128 # convert it to ext4
 129         $(STAGING_DIR_HOST)/bin/tune2fs -O extents,uninit_bg,dir_index $(KDIR)/root.ext4
 130 # fix it up
 131         $(STAGING_DIR_HOST)/bin/e2fsck -fy $(KDIR)/root.ext4
 132         $(call Image/Build,ext4)
 133   endef
 134 endif
 135
 136 ifneq ($(CONFIG_TARGET_ROOTFS_ISO),)
 137   define Image/mkfs/iso
 138                 $(call Image/Build,iso)
 139   endef
 140 endif
 141
 142
 143 define Image/mkfs/prepare/default
 144         # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
 145         - $(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
 146         - $(FIND) $(TARGET_DIR) -type f -perm +0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 147         - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 148         $(INSTALL_DIR) $(TARGET_DIR)/tmp
 149         chmod 1777 $(TARGET_DIR)/tmp
 150 endef
 151
 152 define Image/mkfs/prepare
 153         $(call Image/mkfs/prepare/default)
 154 endef
 155
 156
 157 define Image/Checksum
 158         ( cd ${BIN_DIR} ; \
 159                 $(FIND) -maxdepth 1 -type f \! -name 'md5sums'  -printf "%P\n" | sort | xargs \
 160                 md5sum --binary > md5sums \
 161         )
 162 endef
 163
 164
 165 define BuildImage
 166
 167   download:
 168   prepare:
 169
 170   ifeq ($(IB),)
 171     compile: compile-targets FORCE
 172                 $(call Build/Compile)
 173   else
 174     compile:
 175   endif
 176
 177   ifeq ($(IB),)
 178     install: compile install-targets FORCE
 179                 $(call Image/Prepare)
 180                 $(call Image/mkfs/prepare)
 181                 $(call Image/BuildKernel)
 182                 $(call Image/mkfs/cpiogz)
 183                 $(call Image/mkfs/targz)
 184                 $(call Image/mkfs/ext4)
 185                 $(call Image/mkfs/iso)
 186                 $(call Image/mkfs/jffs2)
 187                 $(call Image/mkfs/squashfs)
 188                 $(call Image/mkfs/ubifs)
 189                 $(call Image/Checksum)
 190   else
 191     install: compile install-targets
 192                 $(call Image/BuildKernel)
 193                 $(call Image/mkfs/cpiogz)
 194                 $(call Image/mkfs/targz)
 195                 $(call Image/mkfs/ext4)
 196                 $(call Image/mkfs/iso)
 197                 $(call Image/mkfs/jffs2)
 198                 $(call Image/mkfs/squashfs)
 199                 $(call Image/mkfs/ubifs)
 200                 $(call Image/Checksum)
 201   endif
 202
 203   ifeq ($(IB),)
 204     clean: clean-targets
 205                 $(call Build/Clean)
 206   else
 207     clean:
 208   endif
 209
 210   compile-targets:
 211   install-targets:
 212   clean-targets:
 213
 214 endef