summaryrefslogtreecommitdiffstats
path: root/alpine.mk
blob: 7fb6d55f9c059048703877f894c07b8b74f7366c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
#!/usr/bin/make -f

-include alpine.conf.mk

BUILD_DATE	:= $(shell date +%y%m%d)
ALPINE_RELEASE	?= $(BUILD_DATE)
ALPINE_NAME	?= alpine-test
DESTDIR		?= $(shell pwd)/isotmp
APORTS_DIR	?= $(HOME)/aports
APKDIRS		?= ../aports/core/*/

ISO		?= $(ALPINE_NAME)-$(ALPINE_RELEASE).iso
ISO_LINK	?= $(ALPINE_NAME).iso
ISO_DIR		:= $(DESTDIR)/isofs

find_apk	= $(firstword $(wildcard $(addprefix $(APKDIRS),$(1)-[0-9]*.apk)))

KERNEL_FLAVOR	?= grsec
KERNEL_PKGNAME	?= linux-$(KERNEL_FLAVOR)
KERNEL_NAME	:= $(subst linux-,,$(KERNEL_PKGNAME))
KERNEL_APK	:= $(call find_apk,$(KERNEL_PKGNAME))
MODULE_APK	:= $(wildcard $(subst /$(KERNEL_PKGNAME)-,/$(KERNEL_PKGNAME)-mod-,$(KERNEL_APK)))
KERNEL		:= $(word 3,$(subst -, ,$(notdir $(KERNEL_APK))))-$(word 2,$(subst -, ,$(notdir $(KERNEL_APK))))

ALPINEBASELAYOUT_APK := $(call find_apk,alpine-baselayout)
UCLIBC_APK	:= $(call find_apk,uclibc)
BUSYBOX_APK	:= $(call find_apk,busybox)
APK_TOOLS_APK	:= $(call find_apk,apk-tools)

SOURCE_APKS	:= $(wildcard $(APKDIRS)/*apk)
APK_BIN		:= $(shell which apk)

ifneq ($(words $(KERNEL_APK) $(MODULE_APK) $(ALPINEBASELAYOUT_APK) $(UCLIBC_APK) $(BUSYBOX_APK) $(APK_TOOLS_APK)),6)
$(error I did not find all APKs which I need.)
endif

all: $(ISO)

help:
	@echo "Alpine ISO builder"
	@echo
	@echo "Type 'make' to build $(ISO)"
	@echo
	@echo "I will use the following sources files:"
	@echo " 1. $(notdir $(KERNEL_APK)) (looks like $(KERNEL))"
	@echo " 2. $(notdir $(MODULE_APK))"
	@echo " 3. $(notdir $(ALPINEBASELAYOUT_APK))"
	@echo " 4. $(notdir $(UCLIBC_APK))"
	@echo " 5. $(notdir $(BUSYBOX_APK))"
ifeq ($(APK_BIN),)
	@echo " 6. $(notdir $(APK_TOOLS_APK))"
else
	@echo " 6. $(APK_BIN)"
endif
	@echo
	@echo "ALPINE_NAME:    $(ALPINE_NAME)"
	@echo "ALPINE_RELEASE: $(ALPINE_RELEASE)"
	@echo "KERNEL_FLAVOR:  $(KERNEL_FLAVOR)"
	@echo "APORTS_DIR:     $(APORTS_DIR)"
	@echo

clean:
	rm -rf $(MODLOOP) $(MODLOOP_DIR) $(MODLOOP_DIRSTAMP) \
		$(INITFS) $(INITFS_DIRSTAMP) $(INITFS_DIR) \
		$(ISO_DIR)

#
# Repos
#
REPOS_DIR	:= $(ISO_DIR)/packages
REPOS_DIRSTAMP	:= $(DESTDIR)/stamp.repos

#
# Modloop
#
MODLOOP		:= $(ISO_DIR)/boot/modloop.cmg
MODLOOP_DIR	:= $(DESTDIR)/modloop
MODLOOP_DIRSTAMP := $(DESTDIR)/stamp.modloop

$(MODLOOP_DIRSTAMP): $(MODULE_APK)
	@echo "==> modloop: prepare modules $(notdir $(MODULE_APK))"
	@rm -rf $(MODLOOP_DIR)
	@mkdir -p $(MODLOOP_DIR)/lib/modules/
	@tar -C $(MODLOOP_DIR) -xzf $(MODULE_APK)
	@rm -rf $(addprefix $(MODLOOP_DIR)/lib/modules/*/, source build)
	@depmod $(KERNEL) -b $(MODLOOP_DIR)
	@touch $(MODLOOP_DIRSTAMP)

$(MODLOOP): $(MODLOOP_DIRSTAMP)
	@echo "==> modloop: building image $(notdir $(MODLOOP))"
	@mkdir -p $(dir $(MODLOOP))
	@mkcramfs $(MODLOOP_DIR)/lib $(MODLOOP)

modloop: $(MODLOOP)
#
# Initramfs rules
#

INITFS		:= $(ISO_DIR)/boot/initramfs.gz

INITFS_DIRSTAMP	:= $(DESTDIR)/stamp.initfs
INITFS_DIR	:= $(DESTDIR)/initfs
INITFS_MODDIR	:= $(INITFS_DIR)/lib/modules/$(KERNEL)
INITFS_MODDIRSTAMP := $(DESTDIR)/stamp.initfs.modules

INITFS_APKS	:= $(UCLIBC_APK) $(BUSYBOX_APK)
INITFS_RAWBASEFILES  := etc/mdev.conf etc/passwd etc/group etc/fstab etc/modules
INITFS_BASEFILES     := $(addprefix $(INITFS_DIR)/, $(INITFS_RAWBASEFILES))

$(INITFS_DIRSTAMP): $(INITFS_APKS)
	@echo "==> initramfs: prepare baselayout"
	@rm -rf $(INITFS_DIR)
	@mkdir -p $(addprefix $(INITFS_DIR)/, \
		dev proc sys sbin bin .modloop lib/modules \
		media/cdrom media/floppy media/usb newroot)
	@for apk in $(INITFS_APKS) ; do \
		tar -C $(INITFS_DIR) -xzf $$apk ; \
	done
	@rm -f "$(INITFS_DIR)/.PKGINFO"
	@mknod $(INITFS_DIR)/dev/null c 1 3
	@mkdir -p "$(INITFS_DIR)/etc"
	@echo floppy >> "$(INITFS_DIR)/etc/modules"
	@touch $(INITFS_DIRSTAMP)

$(INITFS_BASEFILES): $(INITFS_DIRSTAMP) $(ALPINEBASELAYOUT_APK)
	@echo "==> initramfs: $(notdir $(ALPINEBASELAYOUT_APK))"
	@tar -C $(INITFS_DIR) -xzf $(ALPINEBASELAYOUT_APK) $(INITFS_RAWBASEFILES)
	@touch $(INITFS_BASEFILES)

$(INITFS_DIR)/init: initramfs-init $(INITFS_DIRSTAMP)
	@echo "==> initramfs: init script"
	@cp initramfs-init "$(INITFS_DIR)/init"

ifeq ($(APK_BIN),)
$(INITFS_DIR)/sbin/apk: $(APK_TOOLS_APK) $(INITFS_DIRSTAMP)
	@echo "==> initramfs: $(notdir $(APK_TOOLS_APK))"
	@tar -C $(INITFS_DIR) -xzf $(APK_TOOLS_APK) sbin/apk
else
$(INITFS_DIR)/sbin/apk: $(APK_BIN) $(INITFS_DIRSTAMP)
	@echo "==> initramfs: copy $(APK_BIN) from buildroot"
	@cp $(APK_BIN) "$(INITFS_DIR)/sbin"
endif

$(INITFS_MODDIRSTAMP): $(INITFS_DIRSTAMP) $(INITFS_MODFILES) $(MODLOOP_DIRSTAMP)
	@echo "==> initramfs: $(notdir $(MODULE_APK))"
	@rm -rf $(INITFS_DIR)/lib/modules
	@mkdir -p $(addprefix $(INITFS_MODDIR)/kernel/,drivers fs)
	@for i in acpi ata block ide scsi cdrom usb message hid; do \
		cp -flLpR $(MODLOOP_DIR)/lib/modules/*/kernel/drivers/$$i \
			$(INITFS_MODDIR)/kernel/drivers/ ; \
	done
	@for i in isofs vfat nls ext2 cramfs '*.ko'; do \
		cp -flLpR $(MODLOOP_DIR)/lib/modules/*/kernel/fs/$$i \
			$(INITFS_MODDIR)/kernel/fs/ ; \
	done
	@cp -flLpR $(MODLOOP_DIR)/lib/modules/*/kernel/lib \
		$(INITFS_MODDIR)/kernel/
	@depmod $(KERNEL) -b $(INITFS_DIR)
	@touch $(INITFS_MODDIRSTAMP)

$(INITFS): $(INITFS_DIRSTAMP) $(INITFS_DIR)/init $(INITFS_DIR)/sbin/apk $(INITFS_MODDIRSTAMP) $(INITFS_BASEFILES)
	@echo "==> initramfs: creating $(notdir $(INITFS))"
	@(cd $(INITFS_DIR) && find . | cpio -o -H newc | gzip -9) > $(INITFS)

initfs: $(INITFS)
#
# ISO rules
#

ISOLINUX	:= $(ISO_DIR)/isolinux
ISOLINUX_BIN	:= $(ISOLINUX)/isolinux.bin
ISOLINUX_CFG	:= $(ISOLINUX)/isolinux.cfg

$(ISOLINUX_BIN): /usr/share/syslinux/isolinux.bin
	@echo "==> iso: install isolinux"
	@mkdir -p $(dir $(ISOLINUX_BIN))
	@cp /usr/share/syslinux/isolinux.bin $(ISOLINUX_BIN)

$(ISOLINUX_CFG):
	@echo "==> iso: configure isolinux"
	@mkdir -p $(dir $(ISOLINUX_BIN))
	@echo "timeout 20" >$(ISOLINUX_CFG)
	@echo "prompt 1" >>$(ISOLINUX_CFG)
	@echo "default $(KERNEL_NAME)" >>$(ISOLINUX_CFG)
	@echo "label $(KERNEL_NAME)" >>$(ISOLINUX_CFG)
	@echo "	kernel /boot/$(KERNAL_NAME)" >>$(ISOLINUX_CFG)
	@echo "	append initrd=/boot/initramfs.gz alpine_dev=cdrom modules=floppy quiet" >>$(ISOLINUX_CFG)

ISO_KERNEL	:= $(ISO_DIR)/boot/$(KERNEL_NAME)
ISO_APKS	:= $(ISO_DIR)/apks
ISO_APKINDEX	:= $(ISO_APKS)/APK_INDEX.gz

$(ISO_APKS): $(SOURCE_APKS)
	@echo "==> iso: prepare APK repository"
	@rm -rf $(ISO_APKS)
	@mkdir -p $(ISO_APKS)
	@for a in $(SOURCE_APKS) ; do \
		ln -f $$a $(ISO_APKS) 2>/dev/null || cp $$a $(ISO_APKS) ; \
	done
	@apk index $(SOURCE_APKS) | gzip -9 > $(ISO_APKINDEX)

$(ISO_KERNEL): $(KERNEL_APK)
	@echo "==> iso: install kernel $(KERNEL)"
	@mkdir -p $(dir $(ISO_KERNEL))
	@tar -C $(ISO_DIR) -xzf $(KERNEL_APK)
	@rm -f $(ISO_DIR)/.[A-Z]*
	@touch $(ISO_KERNEL)

$(ISO): $(MODLOOP) $(INITFS) $(ISOLINUX_CFG) $(ISOLINUX_BIN) $(ISO_KERNEL) $(ISO_APKS)
	@echo "==> iso: building $(notdir $(ISO))"
	@echo "$(ALPINE_NAME)-$(ALPINE_RELEASE) $(BUILD_DATE)" \
		> $(ISO_DIR)/.alpine-release
	@genisoimage -o $(ISO) -l -J -R \
		-b isolinux/isolinux.bin \
		-c isolinux/boot.cat	\
		-no-emul-boot		\
		-boot-load-size 4	\
		-boot-info-table	\
		-quiet			\
		$(ISO_DIR)
	@ln -fs $@ $(ISO_LINK)

iso: $(ISO)