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 ($(CONFIG_BIG_ENDIAN),)
21  JFFS2OPTS := --pad --big-endian --squash -v
22  SQUASHFS_OPTS := -be
23else
24  JFFS2OPTS := --pad --little-endian --squash -v
25  SQUASHFS_OPTS := -le
26endif
27
28ifneq ($(CONFIG_LINUX_2_4)$(CONFIG_LINUX_2_6_25),)
29  USE_SQUASHFS3 := y
30endif
31
32ifneq ($(USE_SQUASHFS3),)
33  MKSQUASHFS_CMD := $(STAGING_DIR_HOST)/bin/mksquashfs-lzma
34else
35  MKSQUASHFS_CMD := $(STAGING_DIR_HOST)/bin/mksquashfs4
36  SQUASHFS_OPTS := -comp lzma -processors 1
37endif
38
39JFFS2_BLOCKSIZE ?= 64k 128k
40
41define add_jffs2_mark
42    echo -ne '\xde\xad\xc0\xde' >> $(1)
43endef
44
45# pad to 4k, 8k, 64k, 128k and add jffs2 end-of-filesystem mark
46define prepare_generic_squashfs
47    dd if=$(1) of=$(KDIR)/tmpfile.0 bs=4k conv=sync
48    $(call add_jffs2_mark,$(KDIR)/tmpfile.0)
49    dd if=$(KDIR)/tmpfile.0 of=$(KDIR)/tmpfile.1 bs=4k conv=sync
50    $(call add_jffs2_mark,$(KDIR)/tmpfile.1)
51    dd if=$(KDIR)/tmpfile.1 of=$(KDIR)/tmpfile.2 bs=64k conv=sync
52    $(call add_jffs2_mark,$(KDIR)/tmpfile.2)
53    dd if=$(KDIR)/tmpfile.2 of=$(1) bs=64k conv=sync
54    $(call add_jffs2_mark,$(1))
55    rm -f $(KDIR)/tmpfile.*
56endef
57
58
59ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
60
61  define Image/BuildKernel
62        cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux.elf
63        $(call Image/Build/Initramfs)
64  endef
65
66else
67
68  ifneq ($(CONFIG_TARGET_ROOTFS_JFFS2),)
69    define Image/mkfs/jffs2/sub
70        # FIXME: removing this line will cause strange behaviour in the foreach loop below
71        $(STAGING_DIR_HOST)/bin/mkfs.jffs2 $(JFFS2OPTS) -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(1) -d $(TARGET_DIR)
72        $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(1))
73        $(call Image/Build,jffs2-$(1))
74    endef
75    define Image/mkfs/jffs2
76        $(foreach SZ,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/sub,$(SZ)))
77    endef
78  endif
79
80  ifneq ($(CONFIG_TARGET_ROOTFS_SQUASHFS),)
81    define Image/mkfs/squashfs
82        @mkdir -p $(TARGET_DIR)/overlay
83        $(MKSQUASHFS_CMD) $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned $(SQUASHFS_OPTS)
84        $(call Image/Build,squashfs)
85    endef
86  endif
87
88  ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
89    define Image/mkfs/ubifs
90        $(CP) ./ubinize.cfg $(KDIR)
91        $(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) -o $(KDIR)/root.ubifs -d $(TARGET_DIR)
92        (cd $(KDIR); \
93        $(STAGING_DIR_HOST)/bin/ubinize $(UBINIZE_OPTS) -o $(KDIR)/root.ubi ubinize.cfg)
94        $(call Image/Build,ubi)
95    endef
96  endif
97
98endif
99
100ifneq ($(CONFIG_TARGET_ROOTFS_CPIOGZ),)
101  define Image/mkfs/cpiogz
102        ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9 >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
103  endef
104endif
105
106ifneq ($(CONFIG_TARGET_ROOTFS_TARGZ),)
107  define Image/mkfs/targz
108        $(TAR) -zcf $(BIN_DIR)/$(IMG_PREFIX)-rootfs.tar.gz --numeric-owner --owner=0 --group=0 -C $(TARGET_DIR)/ .
109  endef
110endif
111
112ifneq ($(CONFIG_TARGET_ROOTFS_EXT2FS),)
113  E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024)))
114
115  define Image/mkfs/ext2
116        $(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext2
117        $(call Image/Build,ext2)
118  endef
119endif
120
121ifneq ($(CONFIG_TARGET_ROOTFS_ISO),)
122  define Image/mkfs/iso
123        $(call Image/Build,iso)
124  endef
125endif
126
127
128define Image/mkfs/prepare/default
129    - $(FIND) $(TARGET_DIR) -type f -not -perm +0100 -not -name 'ssh_host*' -print0 | $(XARGS) -0 chmod 0644
130    - $(FIND) $(TARGET_DIR) -type f -perm +0100 -print0 | $(XARGS) -0 chmod 0755
131    - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod 0755
132    $(INSTALL_DIR) $(TARGET_DIR)/tmp
133    chmod 0777 $(TARGET_DIR)/tmp
134endef
135
136define Image/mkfs/prepare
137    $(call Image/mkfs/prepare/default)
138endef
139
140
141define Image/Checksum
142    ( cd ${BIN_DIR} ; \
143        $(FIND) -maxdepth 1 -type f \! -name 'md5sums' -printf "%P\n" | sort | xargs \
144        md5sum --binary > md5sums \
145    )
146endef
147
148
149define BuildImage
150
151  download:
152  prepare:
153
154  ifeq ($(IB),)
155    compile: compile-targets FORCE
156        $(call Build/Compile)
157  else
158    compile:
159  endif
160
161  ifeq ($(IB),)
162    install: compile install-targets FORCE
163        $(call Image/Prepare)
164        $(call Image/mkfs/prepare)
165        $(call Image/BuildKernel)
166        $(call Image/mkfs/cpiogz)
167        $(call Image/mkfs/targz)
168        $(call Image/mkfs/ext2)
169        $(call Image/mkfs/iso)
170        $(call Image/mkfs/jffs2)
171        $(call Image/mkfs/squashfs)
172        $(call Image/mkfs/ubifs)
173        $(call Image/Checksum)
174  else
175    install: compile install-targets
176        $(call Image/BuildKernel)
177        $(call Image/mkfs/cpiogz)
178        $(call Image/mkfs/targz)
179        $(call Image/mkfs/ext2)
180        $(call Image/mkfs/iso)
181        $(call Image/mkfs/jffs2)
182        $(call Image/mkfs/squashfs)
183        $(call Image/mkfs/ubifs)
184        $(call Image/Checksum)
185  endif
186
187  ifeq ($(IB),)
188    clean: clean-targets
189        $(call Build/Clean)
190  else
191    clean:
192  endif
193
194  compile-targets:
195  install-targets:
196  clean-targets:
197
198endef
199

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