summaryrefslogtreecommitdiff
path: root/classes/kernel.bbclass
blob: 2434ca1f0a056927b43bc14e800d5cd8094d5ab8 (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
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
inherit linux-kernel-base module_strip

PROVIDES += "virtual/kernel"
DEPENDS += "virtual/${TARGET_PREFIX}depmod-${@get_kernelmajorversion('${PV}')} virtual/${TARGET_PREFIX}gcc${KERNEL_CCSUFFIX} update-modules"

inherit kernel-arch

PACKAGES_DYNAMIC += "kernel-module-*"
PACKAGES_DYNAMIC += "kernel-image-*"

export OS = "${TARGET_OS}"
export CROSS_COMPILE = "${TARGET_PREFIX}"
KERNEL_IMAGETYPE ?= "zImage"

KERNEL_PRIORITY = "${@bb.data.getVar('PV',d,1).split('-')[0].split('.')[-1]}"

KERNEL_RELEASE ?= "${KERNEL_VERSION}"

KERNEL_CCSUFFIX ?= ""
KERNEL_LDSUFFIX ?= ""

# Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture
# specific options necessary for building the kernel and modules.
#FIXME: should be this: TARGET_CC_KERNEL_ARCH ?= "${TARGET_CC_ARCH}"
TARGET_CC_KERNEL_ARCH ?= ""
HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}"
TARGET_LD_KERNEL_ARCH ?= ""
HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}"

KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc${KERNEL_CCSUFFIX} ${HOST_CC_KERNEL_ARCH}"
KERNEL_LD = "${LD}${KERNEL_LDSUFFIX} ${HOST_LD_KERNEL_ARCH}"

KERNEL_OUTPUT = "arch/${ARCH}/boot/${KERNEL_IMAGETYPE}"
KERNEL_IMAGEDEST = "boot"

#
# configuration
#
export CMDLINE_CONSOLE = "console=${@bb.data.getVar("KERNEL_CONSOLE",d,1) or "ttyS0"}"

KERNEL_VERSION = "${@get_kernelversion('${S}')}"
KERNEL_MAJOR_VERSION = "${@get_kernelmajorversion('${KERNEL_VERSION}')}"

KERNEL_LOCALVERSION ?= ""

# kernels are generally machine specific
PACKAGE_ARCH = "${MACHINE_ARCH}"

kernel_do_compile() {
	unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
	oe_runmake include/linux/version.h CC="${KERNEL_CC}" LD="${KERNEL_LD}"
	if [ "${KERNEL_MAJOR_VERSION}" != "2.6" ]; then
		oe_runmake dep CC="${KERNEL_CC}" LD="${KERNEL_LD}"
	fi
	oe_runmake ${KERNEL_IMAGETYPE} CC="${KERNEL_CC}" LD="${KERNEL_LD}"
	if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
		oe_runmake modules  CC="${KERNEL_CC}" LD="${KERNEL_LD}"
	else
		oenote "no modules to compile"
	fi
}

kernel_do_stage() {
	ASMDIR=`readlink include/asm`

	mkdir -p ${STAGING_KERNEL_DIR}/include/$ASMDIR
	cp -fR include/$ASMDIR/* ${STAGING_KERNEL_DIR}/include/$ASMDIR/
	rm -f $ASMDIR ${STAGING_KERNEL_DIR}/include/asm
	ln -sf $ASMDIR ${STAGING_KERNEL_DIR}/include/asm

	mkdir -p ${STAGING_KERNEL_DIR}/include/asm-generic
	cp -fR include/asm-generic/* ${STAGING_KERNEL_DIR}/include/asm-generic/

	mkdir -p ${STAGING_KERNEL_DIR}/include/linux
	cp -fR include/linux/* ${STAGING_KERNEL_DIR}/include/linux/

	mkdir -p ${STAGING_KERNEL_DIR}/include/net
	cp -fR include/net/* ${STAGING_KERNEL_DIR}/include/net/

	mkdir -p ${STAGING_KERNEL_DIR}/include/pcmcia
	cp -fR include/pcmcia/* ${STAGING_KERNEL_DIR}/include/pcmcia/

	if [ -d drivers/crypto ]; then
		mkdir -p ${STAGING_KERNEL_DIR}/drivers/crypto
		cp -fR drivers/crypto/* ${STAGING_KERNEL_DIR}/drivers/crypto/
	fi

        if [ -d include/media ]; then
                mkdir -p ${STAGING_KERNEL_DIR}/include/media
                cp -fR include/media/* ${STAGING_KERNEL_DIR}/include/media/
        fi

	if [ -d include/acpi ]; then
		mkdir -p ${STAGING_KERNEL_DIR}/include/acpi
		cp -fR include/acpi/* ${STAGING_KERNEL_DIR}/include/acpi/
	fi

	if [ -d include/sound ]; then
		mkdir -p ${STAGING_KERNEL_DIR}/include/sound
		cp -fR include/sound/* ${STAGING_KERNEL_DIR}/include/sound/
	fi

	if [ -d drivers/sound ]; then
		# 2.4 alsa needs some headers from this directory
		mkdir -p ${STAGING_KERNEL_DIR}/include/drivers/sound
		cp -fR drivers/sound/*.h ${STAGING_KERNEL_DIR}/include/drivers/sound/
	fi

	install -m 0644 .config ${STAGING_KERNEL_DIR}/config-${KERNEL_VERSION}
	ln -sf config-${KERNEL_VERSION} ${STAGING_KERNEL_DIR}/.config
	ln -sf config-${KERNEL_VERSION} ${STAGING_KERNEL_DIR}/kernel-config
	echo "${KERNEL_VERSION}" >${STAGING_KERNEL_DIR}/kernel-abiversion
	echo "${S}" >${STAGING_KERNEL_DIR}/kernel-source
	echo "${KERNEL_CCSUFFIX}" >${STAGING_KERNEL_DIR}/kernel-ccsuffix
	echo "${KERNEL_LDSUFFIX}" >${STAGING_KERNEL_DIR}/kernel-ldsuffix
	[ -e Rules.make ] && install -m 0644 Rules.make ${STAGING_KERNEL_DIR}/
	[ -e Makefile ] && install -m 0644 Makefile ${STAGING_KERNEL_DIR}/
	
	# Check if arch/${ARCH}/Makefile exists and install it
	if [ -e arch/${ARCH}/Makefile ]; then
		install -d ${STAGING_KERNEL_DIR}/arch/${ARCH}
		install -m 0644 arch/${ARCH}/Makefile* ${STAGING_KERNEL_DIR}/arch/${ARCH}
	fi
	cp -fR include/config* ${STAGING_KERNEL_DIR}/include/	
	install -m 0644 ${KERNEL_OUTPUT} ${STAGING_KERNEL_DIR}/${KERNEL_IMAGETYPE}
	install -m 0644 System.map ${STAGING_KERNEL_DIR}/System.map-${KERNEL_VERSION}
	[ -e Module.symvers ] && install -m 0644 Module.symvers ${STAGING_KERNEL_DIR}/

	cp -fR scripts ${STAGING_KERNEL_DIR}/
}

kernel_do_install() {
	unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
	if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
		oe_runmake DEPMOD=echo INSTALL_MOD_PATH="${D}" modules_install
	else
		oenote "no modules to install"
	fi
	
	install -d ${D}/${KERNEL_IMAGEDEST}
	install -d ${D}/boot
	install -m 0644 ${KERNEL_OUTPUT} ${D}/${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION}
	install -m 0644 System.map ${D}/boot/System.map-${KERNEL_VERSION}
	install -m 0644 .config ${D}/boot/config-${KERNEL_VERSION}
	install -d ${D}/etc/modutils

        # Check if scripts/genksyms exists and if so, build it
        if [ -e scripts/genksyms/ ]; then
                oe_runmake SUBDIRS="scripts/genksyms"
        fi

        install -d ${STAGING_KERNEL_DIR}
        cp -fR scripts ${STAGING_KERNEL_DIR}/
}

kernel_do_configure() {
        yes '' | oe_runmake oldconfig
}

pkg_postinst_kernel () {
	cd /${KERNEL_IMAGEDEST}; update-alternatives --install /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE}-${KERNEL_VERSION} ${KERNEL_PRIORITY} || true
}

pkg_postrm_kernel () {
	cd /${KERNEL_IMAGEDEST}; update-alternatives --remove ${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE}-${KERNEL_VERSION} || true
}

inherit cml1

EXPORT_FUNCTIONS do_compile do_install do_stage do_configure

PACKAGES = "kernel kernel-image kernel-dev"
FILES = ""
FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*"
FILES_kernel-dev = "/boot/System.map* /boot/config*"
RDEPENDS_kernel = "kernel-image-${KERNEL_VERSION}"
PKG_kernel-image = "kernel-image-${KERNEL_VERSION}"
ALLOW_EMPTY_kernel = "1"
ALLOW_EMPTY_kernel-image = "1"

pkg_postinst_kernel-image () {
if [ ! -e "$D/lib/modules/${KERNEL_VERSION}" ]; then
	mkdir -p $D/lib/modules/${KERNEL_VERSION}
fi
if [ -n "$D" ]; then
	${HOST_PREFIX}depmod-${KERNEL_MAJOR_VERSION} -A -b $D -F ${STAGING_KERNEL_DIR}/System.map-${KERNEL_VERSION} ${KERNEL_VERSION}
else
	depmod -a
fi
}

pkg_postinst_modules () {
if [ -n "$D" ]; then
	${HOST_PREFIX}depmod-${KERNEL_MAJOR_VERSION} -A -b $D -F ${STAGING_KERNEL_DIR}/System.map-${KERNEL_VERSION} ${KERNEL_VERSION}
else
	depmod -a
	update-modules || true
fi
}

pkg_postrm_modules () {
update-modules || true
}

autoload_postinst_fragment() {
if [ x"$D" = "x" ]; then
	modprobe %s || true
fi
}

# autoload defaults (alphabetically sorted)
module_autoload_hidp = "hidp"
module_autoload_ipv6 = "ipv6"
module_autoload_ipsec = "ipsec"
module_autoload_ircomm-tty = "ircomm-tty"
module_autoload_rfcomm = "rfcomm"
module_autoload_sa1100-rtc = "sa1100-rtc"

# alias defaults (alphabetically sorted)
module_conf_af_packet = "alias net-pf-17 af_packet"
module_conf_bluez = "alias net-pf-31 bluez"
module_conf_bnep = "alias bt-proto-4 bnep"
module_conf_hci_uart = "alias tty-ldisc-15 hci_uart"
module_conf_l2cap = "alias bt-proto-0 l2cap"
module_conf_sco = "alias bt-proto-2 sco"
module_conf_rfcomm = "alias bt-proto-3 rfcomm"

python populate_packages_prepend () {
	def extract_modinfo(file):
		import os, re
		tmpfile = os.tmpnam()
		cmd = "PATH=\"%s\" %sobjcopy -j .modinfo -O binary %s %s" % (bb.data.getVar("PATH", d, 1), bb.data.getVar("HOST_PREFIX", d, 1) or "", file, tmpfile)
		os.system(cmd)
		f = open(tmpfile)
		l = f.read().split("\000")
		f.close()
		os.unlink(tmpfile)
		exp = re.compile("([^=]+)=(.*)")
		vals = {}
		for i in l:
			m = exp.match(i)
			if not m:
				continue
			vals[m.group(1)] = m.group(2)
		return vals
	
	def parse_depmod():
		import os, re

		dvar = bb.data.getVar('D', d, 1)
		if not dvar:
			bb.error("D not defined")
			return

		kernelver = bb.data.getVar('KERNEL_VERSION', d, 1)
		kernelver_stripped = kernelver
		m = re.match('^(.*-hh.*)[\.\+].*$', kernelver)
		if m:
			kernelver_stripped = m.group(1)
		path = bb.data.getVar("PATH", d, 1)
		host_prefix = bb.data.getVar("HOST_PREFIX", d, 1) or ""
		major_version = bb.data.getVar('KERNEL_MAJOR_VERSION', d, 1)

		cmd = "PATH=\"%s\" %sdepmod-%s -n -a -r -b %s -F %s/boot/System.map-%s %s" % (path, host_prefix, major_version, dvar, dvar, kernelver, kernelver_stripped)
		f = os.popen(cmd, 'r')

		deps = {}
		pattern0 = "^(.*\.k?o):..*$"
		pattern1 = "^(.*\.k?o):\s*(.*\.k?o)\s*$"
		pattern2 = "^(.*\.k?o):\s*(.*\.k?o)\s*\\\$"
		pattern3 = "^\t(.*\.k?o)\s*\\\$"
		pattern4 = "^\t(.*\.k?o)\s*$"

		line = f.readline()
		while line:
			if not re.match(pattern0, line):
				line = f.readline()
				continue
			m1 = re.match(pattern1, line)
			if m1:
				deps[m1.group(1)] = m1.group(2).split()
			else:
				m2 = re.match(pattern2, line)
				if m2:
					deps[m2.group(1)] = m2.group(2).split()
					line = f.readline()
					m3 = re.match(pattern3, line)
					while m3:
						deps[m2.group(1)].extend(m3.group(1).split())
						line = f.readline()
						m3 = re.match(pattern3, line)
					m4 = re.match(pattern4, line)
					deps[m2.group(1)].extend(m4.group(1).split())
			line = f.readline()
		f.close()
		return deps
	
	def get_dependencies(file, pattern, format):
		file = file.replace(bb.data.getVar('D', d, 1) or '', '', 1)

		if module_deps.has_key(file):
			import os.path, re
			dependencies = []
			for i in module_deps[file]:
				m = re.match(pattern, os.path.basename(i))
				if not m:
					continue
				on = legitimize_package_name(m.group(1))
				dependency_pkg = format % on
				dependencies.append(dependency_pkg)
			return dependencies
		return []

	def frob_metadata(file, pkg, pattern, format, basename):
		import re
		vals = extract_modinfo(file)

		dvar = bb.data.getVar('D', d, 1)

		# If autoloading is requested, output /etc/modutils/<name> and append
		# appropriate modprobe commands to the postinst
		autoload = bb.data.getVar('module_autoload_%s' % basename, d, 1)
		if autoload:
			name = '%s/etc/modutils/%s' % (dvar, basename)
			f = open(name, 'w')
			for m in autoload.split():
				f.write('%s\n' % m)
			f.close()
			postinst = bb.data.getVar('pkg_postinst_%s' % pkg, d, 1)
			if not postinst:
				bb.fatal("pkg_postinst_%s not defined" % pkg)
			postinst += bb.data.getVar('autoload_postinst_fragment', d, 1) % autoload
			bb.data.setVar('pkg_postinst_%s' % pkg, postinst, d)

		# Write out any modconf fragment
		modconf = bb.data.getVar('module_conf_%s' % basename, d, 1)
		if modconf:
			name = '%s/etc/modutils/%s.conf' % (dvar, basename)
			f = open(name, 'w')
			f.write("%s\n" % modconf)
			f.close()

		files = bb.data.getVar('FILES_%s' % pkg, d, 1)
		files = "%s /etc/modutils/%s /etc/modutils/%s.conf" % (files, basename, basename)
		bb.data.setVar('FILES_%s' % pkg, files, d)

		if vals.has_key("description"):
			old_desc = bb.data.getVar('DESCRIPTION_' + pkg, d, 1) or ""
			bb.data.setVar('DESCRIPTION_' + pkg, old_desc + "; " + vals["description"], d)

		rdepends_str = bb.data.getVar('RDEPENDS_' + pkg, d, 1)
		if rdepends_str:
			rdepends = rdepends_str.split()
		else:
			rdepends = []
		rdepends.extend(get_dependencies(file, pattern, format))
		bb.data.setVar('RDEPENDS_' + pkg, ' '.join(rdepends), d)

	module_deps = parse_depmod()
	module_regex = '^(.*)\.k?o$'
	module_pattern = 'kernel-module-%s'

	postinst = bb.data.getVar('pkg_postinst_modules', d, 1)
	postrm = bb.data.getVar('pkg_postrm_modules', d, 1)
	do_split_packages(d, root='/lib/modules', file_regex=module_regex, output_pattern=module_pattern, description='%s kernel module', postinst=postinst, postrm=postrm, recursive=True, hook=frob_metadata, extra_depends='update-modules kernel-image-%s' % bb.data.getVar("KERNEL_VERSION", d, 1))

	import re, os
	metapkg = "kernel-modules"
	bb.data.setVar('ALLOW_EMPTY_' + metapkg, "1", d)
	bb.data.setVar('FILES_' + metapkg, "", d)
	blacklist = [ 'kernel-dev', 'kernel-image' ]
	for l in module_deps.values():
		for i in l:
			pkg = module_pattern % legitimize_package_name(re.match(module_regex, os.path.basename(i)).group(1))
			blacklist.append(pkg)
	metapkg_rdepends = []
	packages = bb.data.getVar('PACKAGES', d, 1).split()
	for pkg in packages[1:]:
		if not pkg in blacklist and not pkg in metapkg_rdepends:
			metapkg_rdepends.append(pkg)
	bb.data.setVar('RDEPENDS_' + metapkg, ' '.join(metapkg_rdepends), d)
	bb.data.setVar('DESCRIPTION_' + metapkg, 'Kernel modules meta package', d)
	packages.append(metapkg)
	bb.data.setVar('PACKAGES', ' '.join(packages), d)
}