Root/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
8override TARGET_BUILD=
9include $(INCLUDE_DIR)/prereq.mk
10include $(INCLUDE_DIR)/kernel.mk
11include $(INCLUDE_DIR)/host.mk
12
13.NOTPARALLEL:
14override MAKEFLAGS=
15override MAKE:=$(SUBMAKE)
16KDIR=$(KERNEL_BUILD_DIR)
17
18IMG_PREFIX:=openwrt-$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))
19
20ifneq ($(CONFIG_BIG_ENDIAN),)
21  JFFS2OPTS := --pad --big-endian --squash -v
22else
23  JFFS2OPTS := --pad --little-endian --squash -v
24endif
25
26ifeq ($(CONFIG_JFFS2_RTIME),y)
27  JFFS2OPTS += -X rtime
28endif
29ifeq ($(CONFIG_JFFS2_ZLIB),y)
30  JFFS2OPTS += -X zlib
31endif
32ifeq ($(CONFIG_JFFS2_LZMA),y)
33  JFFS2OPTS += -X lzma --compression-mode=size
34endif
35ifneq ($(CONFIG_JFFS2_RTIME),y)
36  JFFS2OPTS += -x rtime
37endif
38ifneq ($(CONFIG_JFFS2_ZLIB),y)
39  JFFS2OPTS += -x zlib
40endif
41ifneq ($(CONFIG_JFFS2_LZMA),y)
42  JFFS2OPTS += -x lzma
43endif
44
45SQUASHFSCOMP := gzip
46LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2
47ifeq ($(CONFIG_SQUASHFS_LZMA),y)
48  SQUASHFSCOMP := lzma $(LZMA_XZ_OPTIONS)
49endif
50ifeq ($(CONFIG_SQUASHFS_XZ),y)
51  SQUASHFSCOMP := xz $(LZMA_XZ_OPTIONS)
52endif
53
54JFFS2_BLOCKSIZE ?= 64k 128k
55
56define add_jffs2_mark
57    echo -ne '\xde\xad\xc0\xde' >> $(1)
58endef
59
60# pad to 4k, 8k, 64k, 128k 256k and add jffs2 end-of-filesystem mark
61define prepare_generic_squashfs
62    $(STAGING_DIR_HOST)/bin/padjffs2 $(1) 4 8 64 128 256
63endef
64
65
66ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
67
68  define Image/BuildKernel
69        cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux.elf
70        $(call Image/Build/Initramfs)
71  endef
72
73else
74
75  ifneq ($(CONFIG_TARGET_ROOTFS_JFFS2),)
76    define Image/mkfs/jffs2/sub
77        # FIXME: removing this line will cause strange behaviour in the foreach loop below
78        $(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 '/^.+$$$$/'
79        $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(1))
80        $(call Image/Build,jffs2-$(1))
81    endef
82    define Image/mkfs/jffs2
83        $(foreach SZ,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/sub,$(SZ)))
84    endef
85  endif
86
87  ifneq ($(CONFIG_TARGET_ROOTFS_SQUASHFS),)
88    define Image/mkfs/squashfs
89        @mkdir -p $(TARGET_DIR)/overlay
90        $(STAGING_DIR_HOST)/bin/mksquashfs4 $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned -comp $(SQUASHFSCOMP) -processors $(if $(CONFIG_PKG_BUILD_JOBS),$(CONFIG_PKG_BUILD_JOBS),1)
91        $(call Image/Build,squashfs)
92    endef
93  endif
94
95  ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
96    define Image/mkfs/ubifs
97        $(CP) ./ubinize.cfg $(KDIR)
98        $(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) -o $(KDIR)/root.ubifs -d $(TARGET_DIR)
99        (cd $(KDIR); \
100        $(STAGING_DIR_HOST)/bin/ubinize $(UBINIZE_OPTS) -o $(KDIR)/root.ubi ubinize.cfg)
101        $(call Image/Build,ubi)
102    endef
103  endif
104
105endif
106
107ifneq ($(CONFIG_TARGET_ROOTFS_CPIOGZ),)
108  define Image/mkfs/cpiogz
109        ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9 >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
110  endef
111endif
112
113ifneq ($(CONFIG_TARGET_ROOTFS_TARGZ),)
114  define Image/mkfs/targz
115        # Preserve permissions (-p) when building as non-root user
116        $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)-rootfs.tar.gz --numeric-owner --owner=0 --group=0 -C $(TARGET_DIR)/ .
117  endef
118endif
119
120ifneq ($(CONFIG_TARGET_ROOTFS_EXT4FS),)
121  E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024)))
122
123  define Image/mkfs/ext4
124# generate an ext2 fs
125    $(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4
126# convert it to ext4
127    $(STAGING_DIR_HOST)/bin/tune2fs -O extents,uninit_bg,dir_index $(KDIR)/root.ext4
128# fix it up
129    $(STAGING_DIR_HOST)/bin/e2fsck -fy $(KDIR)/root.ext4
130    $(call Image/Build,ext4)
131  endef
132endif
133
134ifneq ($(CONFIG_TARGET_ROOTFS_ISO),)
135  define Image/mkfs/iso
136        $(call Image/Build,iso)
137  endef
138endif
139
140
141define Image/mkfs/prepare/default
142    # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
143    - $(FIND) $(TARGET_DIR) -type f -not -perm +0100 -not -name 'ssh_host*' -print0 | $(XARGS) -0 chmod u+rw,g+r,o+r
144    - $(FIND) $(TARGET_DIR) -type f -perm +0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
145    - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
146    $(INSTALL_DIR) $(TARGET_DIR)/tmp
147    chmod 0777 $(TARGET_DIR)/tmp
148endef
149
150define Image/mkfs/prepare
151    $(call Image/mkfs/prepare/default)
152endef
153
154
155define Image/Checksum
156    ( cd ${BIN_DIR} ; \
157        $(FIND) -maxdepth 1 -type f \! -name 'md5sums' -printf "%P\n" | sort | xargs \
158        md5sum --binary > md5sums \
159    )
160endef
161
162
163define BuildImage
164
165  download:
166  prepare:
167
168  ifeq ($(IB),)
169    compile: compile-targets FORCE
170        $(call Build/Compile)
171  else
172    compile:
173  endif
174
175  ifeq ($(IB),)
176    install: compile install-targets FORCE
177        $(call Image/Prepare)
178        $(call Image/mkfs/prepare)
179        $(call Image/BuildKernel)
180        $(call Image/mkfs/cpiogz)
181        $(call Image/mkfs/targz)
182        $(call Image/mkfs/ext4)
183        $(call Image/mkfs/iso)
184        $(call Image/mkfs/jffs2)
185        $(call Image/mkfs/squashfs)
186        $(call Image/mkfs/ubifs)
187        $(call Image/Checksum)
188  else
189    install: compile install-targets
190        $(call Image/BuildKernel)
191        $(call Image/mkfs/cpiogz)
192        $(call Image/mkfs/targz)
193        $(call Image/mkfs/ext4)
194        $(call Image/mkfs/iso)
195        $(call Image/mkfs/jffs2)
196        $(call Image/mkfs/squashfs)
197        $(call Image/mkfs/ubifs)
198        $(call Image/Checksum)
199  endif
200
201  ifeq ($(IB),)
202    clean: clean-targets
203        $(call Build/Clean)
204  else
205    clean:
206  endif
207
208  compile-targets:
209  install-targets:
210  clean-targets:
211
212endef
213

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