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 ($(CONFIG_JFFS2_LZMA),y)
42  JFFS2OPTS += -x lzma
43endif
44
45LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2
46ifeq ($(CONFIG_SQUASHFS_LZMA),y)
47  SQUASHFSCOMP := lzma $(LZMA_XZ_OPTIONS)
48endif
49ifeq ($(CONFIG_SQUASHFS_XZ),y)
50  SQUASHFSCOMP := xz $(LZMA_XZ_OPTIONS)
51endif
52
53JFFS2_BLOCKSIZE ?= 64k 128k
54
55define add_jffs2_mark
56    echo -ne '\xde\xad\xc0\xde' >> $(1)
57endef
58
59# pad to 4k, 8k, 64k, 128k and add jffs2 end-of-filesystem mark
60define prepare_generic_squashfs
61    dd if=$(1) of=$(KDIR)/tmpfile.0 bs=4k conv=sync
62    $(call add_jffs2_mark,$(KDIR)/tmpfile.0)
63    dd if=$(KDIR)/tmpfile.0 of=$(KDIR)/tmpfile.1 bs=4k conv=sync
64    $(call add_jffs2_mark,$(KDIR)/tmpfile.1)
65    dd if=$(KDIR)/tmpfile.1 of=$(KDIR)/tmpfile.2 bs=64k conv=sync
66    $(call add_jffs2_mark,$(KDIR)/tmpfile.2)
67    dd if=$(KDIR)/tmpfile.2 of=$(1) bs=64k conv=sync
68    $(call add_jffs2_mark,$(1))
69    rm -f $(KDIR)/tmpfile.*
70endef
71
72
73ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
74
75  define Image/BuildKernel
76        cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux.elf
77        $(call Image/Build/Initramfs)
78  endef
79
80else
81
82  ifneq ($(CONFIG_TARGET_ROOTFS_JFFS2),)
83    define Image/mkfs/jffs2/sub
84        # FIXME: removing this line will cause strange behaviour in the foreach loop below
85        $(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 '/^.+$$$$/'
86        $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(1))
87        $(call Image/Build,jffs2-$(1))
88    endef
89    define Image/mkfs/jffs2
90        $(foreach SZ,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/sub,$(SZ)))
91    endef
92  endif
93
94  ifneq ($(CONFIG_TARGET_ROOTFS_SQUASHFS),)
95    define Image/mkfs/squashfs
96        @mkdir -p $(TARGET_DIR)/overlay
97        $(STAGING_DIR_HOST)/bin/mksquashfs4 $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned -comp $(SQUASHFSCOMP) -processors 1
98        $(call Image/Build,squashfs)
99    endef
100  endif
101
102  ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
103    define Image/mkfs/ubifs
104        $(CP) ./ubinize.cfg $(KDIR)
105        $(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) -o $(KDIR)/root.ubifs -d $(TARGET_DIR)
106        (cd $(KDIR); \
107        $(STAGING_DIR_HOST)/bin/ubinize $(UBINIZE_OPTS) -o $(KDIR)/root.ubi ubinize.cfg)
108        $(call Image/Build,ubi)
109    endef
110  endif
111
112endif
113
114ifneq ($(CONFIG_TARGET_ROOTFS_CPIOGZ),)
115  define Image/mkfs/cpiogz
116        ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9 >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
117  endef
118endif
119
120ifneq ($(CONFIG_TARGET_ROOTFS_TARGZ),)
121  define Image/mkfs/targz
122        # Preserve permissions (-p) when building as non-root user
123        $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)-rootfs.tar.gz --numeric-owner --owner=0 --group=0 -C $(TARGET_DIR)/ .
124  endef
125endif
126
127ifneq ($(CONFIG_TARGET_ROOTFS_EXT4FS),)
128  E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024)))
129
130  define Image/mkfs/ext4
131# generate an ext2 fs
132    $(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4
133# convert it to ext4
134    $(STAGING_DIR_HOST)/bin/tune2fs -O extents,uninit_bg,dir_index $(KDIR)/root.ext4
135# fix it up
136    $(STAGING_DIR_HOST)/bin/e2fsck -fy $(KDIR)/root.ext4
137    $(call Image/Build,ext4)
138  endef
139endif
140
141ifneq ($(CONFIG_TARGET_ROOTFS_ISO),)
142  define Image/mkfs/iso
143        $(call Image/Build,iso)
144  endef
145endif
146
147
148define Image/mkfs/prepare/default
149    # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
150    - $(FIND) $(TARGET_DIR) -type f -not -perm +0100 -not -name 'ssh_host*' -print0 | $(XARGS) -0 chmod u+rw,g+r,o+r
151    - $(FIND) $(TARGET_DIR) -type f -perm +0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
152    - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
153    $(INSTALL_DIR) $(TARGET_DIR)/tmp
154    chmod 0777 $(TARGET_DIR)/tmp
155endef
156
157define Image/mkfs/prepare
158    $(call Image/mkfs/prepare/default)
159endef
160
161
162define Image/Checksum
163    ( cd ${BIN_DIR} ; \
164        $(FIND) -maxdepth 1 -type f \! -name 'md5sums' -printf "%P\n" | sort | xargs \
165        md5sum --binary > md5sums \
166    )
167endef
168
169
170define BuildImage
171
172  download:
173  prepare:
174
175  ifeq ($(IB),)
176    compile: compile-targets FORCE
177        $(call Build/Compile)
178  else
179    compile:
180  endif
181
182  ifeq ($(IB),)
183    install: compile install-targets FORCE
184        $(call Image/Prepare)
185        $(call Image/mkfs/prepare)
186        $(call Image/BuildKernel)
187        $(call Image/mkfs/cpiogz)
188        $(call Image/mkfs/targz)
189        $(call Image/mkfs/ext4)
190        $(call Image/mkfs/iso)
191        $(call Image/mkfs/jffs2)
192        $(call Image/mkfs/squashfs)
193        $(call Image/mkfs/ubifs)
194        $(call Image/Checksum)
195  else
196    install: compile install-targets
197        $(call Image/BuildKernel)
198        $(call Image/mkfs/cpiogz)
199        $(call Image/mkfs/targz)
200        $(call Image/mkfs/ext4)
201        $(call Image/mkfs/iso)
202        $(call Image/mkfs/jffs2)
203        $(call Image/mkfs/squashfs)
204        $(call Image/mkfs/ubifs)
205        $(call Image/Checksum)
206  endif
207
208  ifeq ($(IB),)
209    clean: clean-targets
210        $(call Build/Clean)
211  else
212    clean:
213  endif
214
215  compile-targets:
216  install-targets:
217  clean-targets:
218
219endef
220

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