summaryrefslogtreecommitdiffstats
path: root/openembedded/classes/kernel.bbclass
diff options
context:
space:
mode:
Diffstat (limited to 'openembedded/classes/kernel.bbclass')
-rw-r--r--openembedded/classes/kernel.bbclass382
1 files changed, 382 insertions, 0 deletions
diff --git a/openembedded/classes/kernel.bbclass b/openembedded/classes/kernel.bbclass
new file mode 100644
index 0000000000..ff9aeeab78
--- /dev/null
+++ b/openembedded/classes/kernel.bbclass
@@ -0,0 +1,382 @@
1inherit module_strip
2
3PROVIDES += "virtual/kernel"
4DEPENDS += "virtual/${TARGET_PREFIX}depmod-${@get_kernelmajorversion('${PV}')} virtual/${TARGET_PREFIX}gcc${KERNEL_CCSUFFIX} update-modules"
5
6inherit kernel-arch
7
8export OS = "${TARGET_OS}"
9export CROSS_COMPILE = "${TARGET_PREFIX}"
10KERNEL_IMAGETYPE = "zImage"
11
12KERNEL_PRIORITY = "${@bb.data.getVar('PV',d,1).split('-')[0].split('.')[-1]}"
13
14KERNEL_CCSUFFIX ?= ""
15KERNEL_LDSUFFIX ?= ""
16
17KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc${KERNEL_CCSUFFIX}"
18KERNEL_LD = "${LD}${KERNEL_LDSUFFIX}"
19
20KERNEL_OUTPUT = "arch/${ARCH}/boot/${KERNEL_IMAGETYPE}"
21KERNEL_IMAGEDEST = "boot"
22
23#
24# configuration
25#
26export CMDLINE_CONSOLE = "console=${@bb.data.getVar("KERNEL_CONSOLE",d,1) or "ttyS0"}"
27
28# parse kernel ABI version out of <linux/version.h>
29def get_kernelversion(p):
30 import re
31 try:
32 f = open(p, 'r')
33 except IOError:
34 return None
35 l = f.readlines()
36 f.close()
37 r = re.compile("#define UTS_RELEASE \"(.*)\"")
38 for s in l:
39 m = r.match(s)
40 if m:
41 return m.group(1)
42 return None
43
44def get_kernelmajorversion(p):
45 import re
46 r = re.compile("([0-9]+\.[0-9]+).*")
47 m = r.match(p);
48 if m:
49 return m.group(1)
50 return None
51
52KERNEL_VERSION = "${@get_kernelversion('${S}/include/linux/version.h')}"
53KERNEL_MAJOR_VERSION = "${@get_kernelmajorversion('${KERNEL_VERSION}')}"
54
55KERNEL_LOCALVERSION ?= ""
56
57# kernels are generally machine specific
58PACKAGE_ARCH = "${MACHINE_ARCH}"
59
60kernel_do_compile() {
61 unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
62 oe_runmake include/linux/version.h CC="${KERNEL_CC}" LD="${KERNEL_LD}"
63 oe_runmake dep CC="${KERNEL_CC}" LD="${KERNEL_LD}"
64 oe_runmake ${KERNEL_IMAGETYPE} CC="${KERNEL_CC}" LD="${KERNEL_LD}"
65 if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
66 oe_runmake modules CC="${KERNEL_CC}" LD="${KERNEL_LD}"
67 else
68 oenote "no modules to compile"
69 fi
70}
71
72kernel_do_stage() {
73 ASMDIR=`readlink include/asm`
74
75 mkdir -p ${STAGING_KERNEL_DIR}/include/$ASMDIR
76 cp -fR include/$ASMDIR/* ${STAGING_KERNEL_DIR}/include/$ASMDIR/
77 ln -sf $ASMDIR ${STAGING_KERNEL_DIR}/include/asm
78
79 mkdir -p ${STAGING_KERNEL_DIR}/include/asm-generic
80 cp -fR include/asm-generic/* ${STAGING_KERNEL_DIR}/include/asm-generic/
81
82 mkdir -p ${STAGING_KERNEL_DIR}/include/linux
83 cp -fR include/linux/* ${STAGING_KERNEL_DIR}/include/linux/
84
85 mkdir -p ${STAGING_KERNEL_DIR}/include/net
86 cp -fR include/net/* ${STAGING_KERNEL_DIR}/include/net/
87
88 mkdir -p ${STAGING_KERNEL_DIR}/include/pcmcia
89 cp -fR include/pcmcia/* ${STAGING_KERNEL_DIR}/include/pcmcia/
90
91 if [ -d drivers/sound ]; then
92 # 2.4 alsa needs some headers from this directory
93 mkdir -p ${STAGING_KERNEL_DIR}/include/drivers/sound
94 cp -fR drivers/sound/*.h ${STAGING_KERNEL_DIR}/include/drivers/sound/
95 fi
96
97 install -m 0644 .config ${STAGING_KERNEL_DIR}/config-${PV}${KERNEL_LOCALVERSION}
98 ln -sf config-${PV}${KERNEL_LOCALVERSION} ${STAGING_KERNEL_DIR}/.config
99 ln -sf config-${PV}${KERNEL_LOCALVERSION} ${STAGING_KERNEL_DIR}/kernel-config
100 echo "${KERNEL_VERSION}" >${STAGING_KERNEL_DIR}/kernel-abiversion
101 echo "${S}" >${STAGING_KERNEL_DIR}/kernel-source
102 echo "${KERNEL_CCSUFFIX}" >${STAGING_KERNEL_DIR}/kernel-ccsuffix
103 echo "${KERNEL_LDSUFFIX}" >${STAGING_KERNEL_DIR}/kernel-ldsuffix
104 [ -e Rules.make ] && install -m 0644 Rules.make ${STAGING_KERNEL_DIR}/
105 [ -e Makefile ] && install -m 0644 Makefile ${STAGING_KERNEL_DIR}/
106
107 # Check if arch/${ARCH}/Makefile exists and install it
108 if [ -e arch/${ARCH}/Makefile ]; then
109 install -d ${STAGING_KERNEL_DIR}/arch/${ARCH}
110 install -m 0644 arch/${ARCH}/Makefile ${STAGING_KERNEL_DIR}/arch/${ARCH}
111 fi
112 cp -fR include/config* ${STAGING_KERNEL_DIR}/include/
113 install -m 0644 ${KERNEL_OUTPUT} ${STAGING_KERNEL_DIR}/${KERNEL_IMAGETYPE}
114 install -m 0644 System.map ${STAGING_KERNEL_DIR}/System.map-${PV}${KERNEL_LOCALVERSION}
115 [ -e Module.symvers ] && install -m 0644 Module.symvers ${STAGING_KERNEL_DIR}/
116
117 cp -fR scripts ${STAGING_KERNEL_DIR}/
118}
119
120kernel_do_install() {
121 unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
122 if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
123 oe_runmake DEPMOD=echo INSTALL_MOD_PATH="${D}" modules_install
124 else
125 oenote "no modules to install"
126 fi
127
128 install -d ${D}/${KERNEL_IMAGEDEST}
129 install -d ${D}/boot
130 install -m 0644 ${KERNEL_OUTPUT} ${D}/${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${PV}${KERNEL_LOCALVERSION}
131 install -m 0644 System.map ${D}/boot/System.map-${PV}${KERNEL_LOCALVERSION}
132 install -m 0644 .config ${D}/boot/config-${PV}${KERNEL_LOCALVERSION}
133 install -d ${D}/etc/modutils
134
135 # Check if scripts/genksyms exists and if so, build it
136 if [ -e scripts/genksyms/ ]; then
137 oe_runmake SUBDIRS="scripts/genksyms"
138 fi
139
140 cp -fR scripts ${STAGING_KERNEL_DIR}/
141}
142
143kernel_do_configure() {
144 yes '' | oe_runmake oldconfig
145}
146
147pkg_postinst_kernel () {
148 update-alternatives --install /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE} /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${PV}${KERNEL_LOCALVERSION} ${KERNEL_PRIORITY} || true
149}
150
151pkg_postrm_kernel () {
152 update-alternatives --remove ${KERNEL_IMAGETYPE} /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${PV}${KERNEL_LOCALVERSION} || true
153}
154
155inherit cml1
156
157EXPORT_FUNCTIONS do_compile do_install do_stage do_configure
158
159PACKAGES = "kernel kernel-image kernel-dev"
160FILES = ""
161FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*"
162FILES_kernel-dev = "/boot/System.map* /boot/config*"
163RDEPENDS_kernel = "kernel-image-${KERNEL_VERSION}"
164PKG_kernel-image = "kernel-image-${KERNEL_VERSION}"
165ALLOW_EMPTY_kernel = "1"
166ALLOW_EMPTY_kernel-image = "1"
167
168pkg_postinst_modules () {
169if [ -n "$D" ]; then
170 ${HOST_PREFIX}depmod -A -b $D -F ${STAGING_KERNEL_DIR}/System.map-${PV}${KERNEL_LOCALVERSION} ${KERNEL_VERSION}
171else
172 depmod -A
173 update-modules || true
174fi
175}
176
177pkg_postrm_modules () {
178update-modules || true
179}
180
181autoload_postinst_fragment() {
182if [ x"$D" = "x" ]; then
183 modprobe %s || true
184fi
185}
186
187# autoload defaults (alphabetically sorted)
188module_autoload_hidp = "hidp"
189module_autoload_ipv6 = "ipv6"
190module_autoload_ipsec = "ipsec"
191module_autoload_ircomm-tty = "ircomm-tty"
192module_autoload_rfcomm = "rfcomm"
193module_autoload_sa1100-rtc = "sa1100-rtc"
194
195# alias defaults (alphabetically sorted)
196module_conf_af_packet = "alias net-pf-17 af_packet"
197module_conf_bluez = "alias net-pf-31 bluez"
198module_conf_bnep = "alias bt-proto-4 bnep"
199module_conf_hci_uart = "alias tty-ldisc-15 hci_uart"
200module_conf_l2cap = "alias bt-proto-0 l2cap"
201module_conf_sco = "alias bt-proto-2 sco"
202module_conf_rfcomm = "alias bt-proto-3 rfcomm"
203
204python populate_packages_prepend () {
205 def extract_modinfo(file):
206 import os, re
207 tmpfile = os.tmpnam()
208 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)
209 os.system(cmd)
210 f = open(tmpfile)
211 l = f.read().split("\000")
212 f.close()
213 os.unlink(tmpfile)
214 exp = re.compile("([^=]+)=(.*)")
215 vals = {}
216 for i in l:
217 m = exp.match(i)
218 if not m:
219 continue
220 vals[m.group(1)] = m.group(2)
221 return vals
222
223 def parse_depmod():
224 import os, re
225
226 dvar = bb.data.getVar('D', d, 1)
227 if not dvar:
228 bb.error("D not defined")
229 return
230
231 kernelver = bb.data.getVar('PV', d, 1) + bb.data.getVar('KERNEL_LOCALVERSION', d, 1)
232 kernelver_stripped = kernelver
233 m = re.match('^(.*-hh.*)[\.\+].*$', kernelver)
234 if m:
235 kernelver_stripped = m.group(1)
236 path = bb.data.getVar("PATH", d, 1)
237 host_prefix = bb.data.getVar("HOST_PREFIX", d, 1) or ""
238
239 cmd = "PATH=\"%s\" %sdepmod -n -a -r -b %s -F %s/boot/System.map-%s %s" % (path, host_prefix, dvar, dvar, kernelver, kernelver_stripped)
240 f = os.popen(cmd, 'r')
241
242 deps = {}
243 pattern0 = "^(.*\.k?o):..*$"
244 pattern1 = "^(.*\.k?o):\s*(.*\.k?o)\s*$"
245 pattern2 = "^(.*\.k?o):\s*(.*\.k?o)\s*\\\$"
246 pattern3 = "^\t(.*\.k?o)\s*\\\$"
247 pattern4 = "^\t(.*\.k?o)\s*$"
248
249 line = f.readline()
250 while line:
251 if not re.match(pattern0, line):
252 line = f.readline()
253 continue
254 m1 = re.match(pattern1, line)
255 if m1:
256 deps[m1.group(1)] = m1.group(2).split()
257 else:
258 m2 = re.match(pattern2, line)
259 if m2:
260 deps[m2.group(1)] = m2.group(2).split()
261 line = f.readline()
262 m3 = re.match(pattern3, line)
263 while m3:
264 deps[m2.group(1)].extend(m3.group(1).split())
265 line = f.readline()
266 m3 = re.match(pattern3, line)
267 m4 = re.match(pattern4, line)
268 deps[m2.group(1)].extend(m4.group(1).split())
269 line = f.readline()
270 f.close()
271 return deps
272
273 def get_dependencies(file, pattern, format):
274 file = file.replace(bb.data.getVar('D', d, 1) or '', '', 1)
275
276 if module_deps.has_key(file):
277 import os.path, re
278 dependencies = []
279 for i in module_deps[file]:
280 m = re.match(pattern, os.path.basename(i))
281 if not m:
282 continue
283 on = legitimize_package_name(m.group(1))
284 dependency_pkg = format % on
285 v = bb.data.getVar("PARALLEL_INSTALL_MODULES", d, 1) or "0"
286 if v == "1":
287 kv = bb.data.getVar("KERNEL_MAJOR_VERSION", d, 1)
288 dependency_pkg = "%s-%s" % (dependency_pkg, kv)
289 dependencies.append(dependency_pkg)
290 return dependencies
291 return []
292
293 def frob_metadata(file, pkg, pattern, format, basename):
294 import re
295 vals = extract_modinfo(file)
296
297 dvar = bb.data.getVar('D', d, 1)
298
299 # If autoloading is requested, output /etc/modutils/<name> and append
300 # appropriate modprobe commands to the postinst
301 autoload = bb.data.getVar('module_autoload_%s' % basename, d, 1)
302 if autoload:
303 name = '%s/etc/modutils/%s' % (dvar, basename)
304 f = open(name, 'w')
305 for m in autoload.split():
306 f.write('%s\n' % m)
307 f.close()
308 postinst = bb.data.getVar('pkg_postinst_%s' % pkg, d, 1)
309 if not postinst:
310 bb.fatal("pkg_postinst_%s not defined" % pkg)
311 postinst += bb.data.getVar('autoload_postinst_fragment', d, 1) % autoload
312 bb.data.setVar('pkg_postinst_%s' % pkg, postinst, d)
313
314 # Write out any modconf fragment
315 modconf = bb.data.getVar('module_conf_%s' % basename, d, 1)
316 if modconf:
317 name = '%s/etc/modutils/%s.conf' % (dvar, basename)
318 f = open(name, 'w')
319 f.write("%s\n" % modconf)
320 f.close()
321
322 files = bb.data.getVar('FILES_%s' % pkg, d, 1)
323 files = "%s /etc/modutils/%s /etc/modutils/%s.conf" % (files, basename, basename)
324 bb.data.setVar('FILES_%s' % pkg, files, d)
325
326 if vals.has_key("description"):
327 old_desc = bb.data.getVar('DESCRIPTION_' + pkg, d, 1) or ""
328 bb.data.setVar('DESCRIPTION_' + pkg, old_desc + "; " + vals["description"], d)
329
330 rdepends_str = bb.data.getVar('RDEPENDS_' + pkg, d, 1)
331 if rdepends_str:
332 rdepends = rdepends_str.split()
333 else:
334 rdepends = []
335 rdepends.extend(get_dependencies(file, pattern, format))
336 bb.data.setVar('RDEPENDS_' + pkg, ' '.join(rdepends), d)
337
338 module_deps = parse_depmod()
339 module_regex = '^(.*)\.k?o$'
340 module_pattern = 'kernel-module-%s'
341
342 postinst = bb.data.getVar('pkg_postinst_modules', d, 1)
343 postrm = bb.data.getVar('pkg_postrm_modules', d, 1)
344 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))
345
346 import re, os
347 metapkg = "kernel-modules"
348 bb.data.setVar('ALLOW_EMPTY_' + metapkg, "1", d)
349 bb.data.setVar('FILES_' + metapkg, "", d)
350 blacklist = [ 'kernel-dev', 'kernel-image' ]
351 for l in module_deps.values():
352 for i in l:
353 pkg = module_pattern % legitimize_package_name(re.match(module_regex, os.path.basename(i)).group(1))
354 blacklist.append(pkg)
355 metapkg_rdepends = []
356 packages = bb.data.getVar('PACKAGES', d, 1).split()
357 for pkg in packages[1:]:
358 if not pkg in blacklist and not pkg in metapkg_rdepends:
359 metapkg_rdepends.append(pkg)
360 bb.data.setVar('RDEPENDS_' + metapkg, ' '.join(metapkg_rdepends), d)
361 bb.data.setVar('DESCRIPTION_' + metapkg, 'Kernel modules meta package', d)
362 packages.append(metapkg)
363 bb.data.setVar('PACKAGES', ' '.join(packages), d)
364
365 v = bb.data.getVar("PARALLEL_INSTALL_MODULES", d, 1) or "0"
366 if v == "1":
367 kv = bb.data.getVar("KERNEL_MAJOR_VERSION", d, 1)
368 packages = bb.data.getVar("PACKAGES", d, 1)
369 module_re = re.compile("^kernel-module-")
370 for p in packages.split():
371 if not module_re.match(p):
372 continue
373 pkg = bb.data.getVar("PKG_%s" % p, d, 1) or p
374 newpkg = "%s-%s" % (pkg, kv)
375 bb.data.setVar("PKG_%s" % p, newpkg, d)
376 rprovides = bb.data.getVar("RPROVIDES_%s" % p, d, 1)
377 if rprovides:
378 rprovides = "%s %s" % (rprovides, pkg)
379 else:
380 rprovides = pkg
381 bb.data.setVar("RPROVIDES_%s" % p, rprovides, d)
382}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2026-03-27 09:07:54 +0000