classes/kernel.oeclass

   1 inherit module_strip
   2
   3 PROVIDES += "virtual/kernel"
   4 DEPENDS += "virtual/${TARGET_PREFIX}depmod virtual/${TARGET_PREFIX}gcc${KERNEL_CCSUFFIX} update-modules"
   5
   6 inherit kernel-arch
   7
   8 export OS = "${TARGET_OS}"
   9 export CROSS_COMPILE = "${TARGET_PREFIX}"
  10 KERNEL_IMAGETYPE = "zImage"
  11
  12 KERNEL_PRIORITY = "${@oe.data.getVar('PV',d,1).split('-')[0].split('.')[-1]}"
  13
  14 KERNEL_CCSUFFIX ?= ""
  15 KERNEL_LDSUFFIX ?= ""
  16
  17 KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc${KERNEL_CCSUFFIX}"
  18 KERNEL_LD = "${LD}${KERNEL_LDSUFFIX}"
  19
  20 KERNEL_OUTPUT = "arch/${ARCH}/boot/${KERNEL_IMAGETYPE}"
  21 KERNEL_IMAGEDEST = "boot"
  22
  23 #
  24 # configuration
  25 #
  26 export CMDLINE_CONSOLE = "console=${@oe.data.getVar("KERNEL_CONSOLE",d,1) or "ttyS0"}"
  27
  28 # parse kernel ABI version out of <linux/version.h>
  29 def 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
  44 KERNEL_VERSION = "${@get_kernelversion('${S}/include/linux/version.h')}"
  45
  46 # kernels are generally machine specific
  47 PACKAGE_ARCH := "${MACHINE_ARCH}"
  48
  49 kernel_do_compile() {
  50         unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
  51         oe_runmake include/linux/version.h CC="${KERNEL_CC}" LD="${KERNEL_LD}"
  52         oe_runmake dep CC="${KERNEL_CC}" LD="${KERNEL_LD}"
  53         oe_runmake ${KERNEL_IMAGETYPE} CC="${KERNEL_CC}" LD="${KERNEL_LD}"
  54         if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
  55                 oe_runmake modules  CC="${KERNEL_CC}" LD="${KERNEL_LD}"
  56         else
  57                 oenote "no modules to compile"
  58         fi
  59 }
  60
  61 kernel_do_stage() {
  62         ASMDIR=`readlink include/asm`
  63         install -d ${STAGING_KERNEL_DIR}/include/{$ASMDIR,asm-generic,linux,net,pcmcia}
  64         ln -sf $ASMDIR ${STAGING_KERNEL_DIR}/include/asm
  65         cp -fR include/linux/* ${STAGING_KERNEL_DIR}/include/linux/
  66         cp -fR include/$ASMDIR/* ${STAGING_KERNEL_DIR}/include/$ASMDIR/
  67         cp -fR include/asm-generic/* ${STAGING_KERNEL_DIR}/include/asm-generic/
  68         cp -fR include/net/* ${STAGING_KERNEL_DIR}/include/net/
  69         cp -fR include/pcmcia/* ${STAGING_KERNEL_DIR}/include/pcmcia/
  70         install -m 0644 .config ${STAGING_KERNEL_DIR}/config-${PV}
  71         ln -sf config-${PV} ${STAGING_KERNEL_DIR}/.config
  72         ln -sf config-${PV} ${STAGING_KERNEL_DIR}/kernel-config
  73         echo "${KERNEL_VERSION}" >${STAGING_KERNEL_DIR}/kernel-abiversion
  74         echo "${S}" >${STAGING_KERNEL_DIR}/kernel-source
  75         echo "${KERNEL_CCSUFFIX}" >${STAGING_KERNEL_DIR}/kernel-ccsuffix
  76         echo "${KERNEL_LDSUFFIX}" >${STAGING_KERNEL_DIR}/kernel-ldsuffix
  77         [ -e Rules.make ] && install -m 0644 Rules.make ${STAGING_KERNEL_DIR}/
  78         [ -e Makefile ] && install -m 0644 Makefile ${STAGING_KERNEL_DIR}/
  79
  80         # Check if arch/${ARCH}/Makefile exists and install it
  81         if [ -e arch/${ARCH}/Makefile ]; then
  82                 install -d ${STAGING_KERNEL_DIR}/arch/${ARCH}
  83                 install -m 0644 arch/${ARCH}/Makefile ${STAGING_KERNEL_DIR}/arch/${ARCH}
  84         fi
  85         cp -fR scripts ${STAGING_KERNEL_DIR}/
  86         cp -fR include/config* ${STAGING_KERNEL_DIR}/include/
  87         install -m 0644 ${KERNEL_OUTPUT} ${STAGING_KERNEL_DIR}/${KERNEL_IMAGETYPE}
  88         install -m 0644 System.map ${STAGING_KERNEL_DIR}/System.map-${PV}
  89 }
  90
  91 kernel_do_install() {
  92         unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
  93         if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
  94                 oe_runmake DEPMOD=echo INSTALL_MOD_PATH="${D}" modules_install
  95         else
  96                 oenote "no modules to install"
  97         fi
  98
  99         install -d ${D}/${KERNEL_IMAGEDEST}
 100         install -d ${D}/boot
 101         install -m 0644 ${KERNEL_OUTPUT} ${D}/${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${PV}
 102         install -m 0644 System.map ${D}/boot/System.map-${PV}
 103         install -m 0644 .config ${D}/boot/config-${PV}
 104         install -d ${D}/etc/modutils
 105 }
 106
 107 kernel_do_configure() {
 108         yes '' | oe_runmake oldconfig
 109 }
 110
 111 pkg_postinst_kernel () {
 112         update-alternatives --install /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE} /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${PV} ${KERNEL_PRIORITY} || true
 113 }
 114
 115 pkg_postrm_kernel () {
 116         update-alternatives --remove ${KERNEL_IMAGETYPE} /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${PV} || true
 117 }
 118
 119 inherit cml1
 120
 121 EXPORT_FUNCTIONS do_compile do_install do_stage do_configure
 122
 123 PACKAGES = "kernel kernel-dev"
 124 FILES = ""
 125 FILES_kernel = "/boot/${KERNEL_IMAGETYPE}*"
 126 FILES_kernel-dev = "/boot/System.map* /boot/config*"
 127
 128 pkg_postinst_modules () {
 129 if [ -n "$D" ]; then
 130         ${HOST_PREFIX}depmod -A -b $D -F ${STAGING_KERNEL_DIR}/System.map-${PV} ${KERNEL_VERSION}
 131 else
 132         depmod -A
 133         update-modules || true
 134 fi
 135 }
 136
 137 pkg_postrm_modules () {
 138 update-modules || true
 139 }
 140
 141 autoload_postinst_fragment() {
 142 if [ x"$D" = "x" ]; then
 143         modprobe %s
 144 fi
 145 }
 146
 147 # defaults
 148 module_autoload_ipv6 = "ipv6"
 149 module_autoload_ipsec = "ipsec"
 150 module_conf_bluez = "alias net-pf-31 bluez"
 151 module_conf_l2cap = "alias bt-proto-0 l2cap"
 152 module_conf_sco = "alias bt-proto-2 sco"
 153 module_conf_rfcomm = "alias bt-proto-3 rfcomm"
 154 module_conf_bnep = "alias bt-proto-4 bnep"
 155 module_conf_hci_uart = "alias tty-ldisc-15 hci_uart"
 156
 157 python populate_packages_prepend () {
 158         def extract_modinfo(file):
 159                 import os, re
 160                 tmpfile = os.tmpnam()
 161                 cmd = "PATH=\"%s\" %sobjcopy -j .modinfo -O binary %s %s" % (oe.data.getVar("PATH", d, 1), oe.data.getVar("HOST_PREFIX", d, 1) or "", file, tmpfile)
 162                 os.system(cmd)
 163                 f = open(tmpfile)
 164                 l = f.read().split("\000")
 165                 f.close()
 166                 os.unlink(tmpfile)
 167                 exp = re.compile("([^=]+)=(.*)")
 168                 vals = {}
 169                 for i in l:
 170                         m = exp.match(i)
 171                         if not m:
 172                                 continue
 173                         vals[m.group(1)] = m.group(2)
 174                 return vals
 175
 176         def parse_depmod():
 177                 import os, re
 178
 179                 dvar = oe.data.getVar('D', d, 1)
 180                 if not dvar:
 181                         oe.error("D not defined")
 182                         return
 183
 184                 kernelver = oe.data.getVar('PV', d, 1)
 185                 kernelver_stripped = kernelver
 186                 m = re.match('^(.*-hh.*)\..*$', kernelver)
 187                 if m:
 188                         kernelver_stripped = m.group(1)
 189                 path = oe.data.getVar("PATH", d, 1)
 190                 host_prefix = oe.data.getVar("HOST_PREFIX", d, 1) or ""
 191
 192                 cmd = "PATH=\"%s\" %sdepmod -n -a -r -b %s -F %s/boot/System.map-%s %s" % (path, host_prefix, dvar, dvar, kernelver, kernelver_stripped)
 193                 f = os.popen(cmd, 'r')
 194
 195                 deps = {}
 196                 pattern0 = "^(.*\.o):..*$"
 197                 pattern1 = "^(.*\.o):\t(.*\.o)$"
 198                 pattern2 = "^(.*\.o):\t(.*\.o) \\\$"
 199                 pattern3 = "^\t(.*\.o) \\\$"
 200                 pattern4 = "^\t(.*\.o)$"
 201
 202                 line = f.readline()
 203                 while line:
 204                         if not re.match(pattern0, line):
 205                                 line = f.readline()
 206                                 continue
 207                         m1 = re.match(pattern1, line)
 208                         if m1:
 209                                 deps[m1.group(1)] = [m1.group(2)]
 210                         else:
 211                                 m2 = re.match(pattern2, line)
 212                                 if m2:
 213                                         deps[m2.group(1)] = [m2.group(2)]
 214                                         line = f.readline()
 215                                         m3 = re.match(pattern3, line)
 216                                         while m3:
 217                                                 deps[m2.group(1)].append(m3.group(1))
 218                                                 line = f.readline()
 219                                                 m3 = re.match(pattern3, line)
 220                                         m4 = re.match(pattern4, line)
 221                                         deps[m2.group(1)].append(m4.group(1))
 222                         line = f.readline()
 223                 f.close()
 224                 return deps
 225
 226         def get_dependencies(file, pattern, format):
 227                 file = file.replace(oe.data.getVar('D', d, 1) or '', '', 1)
 228
 229                 if module_deps.has_key(file):
 230                         import os.path, re
 231                         dependencies = []
 232                         for i in module_deps[file]:
 233                                 m = re.match(pattern, os.path.basename(i))
 234                                 if not m:
 235                                         continue
 236                                 on = legitimize_package_name(m.group(1))
 237                                 dependencies.append(format % on)
 238                         return dependencies
 239                 return []
 240
 241         def frob_metadata(file, pkg, pattern, format, basename):
 242                 import re
 243                 vals = extract_modinfo(file)
 244
 245                 dvar = oe.data.getVar('D', d, 1)
 246
 247                 # If autoloading is requested, output /etc/modutils/<name> and append
 248                 # appropriate modprobe commands to the postinst
 249                 autoload = oe.data.getVar('module_autoload_%s' % basename, d, 1)
 250                 if autoload:
 251                         name = '%s/etc/modutils/%s' % (dvar, basename)
 252                         f = open(name, 'w')
 253                         for m in autoload.split():
 254                                 f.write('%s\n' % m)
 255                         f.close()
 256                         postinst = oe.data.getVar('pkg_postinst_%s' % pkg, d, 1)
 257                         if not postinst:
 258                                 oe.fatal("pkg_postinst_%s not defined" % pkg)
 259                         postinst += oe.data.getVar('autoload_postinst_fragment', d, 1) % autoload
 260                         oe.data.setVar('pkg_postinst_%s' % pkg, postinst, d)
 261
 262                 # Write out any modconf fragment
 263                 modconf = oe.data.getVar('module_conf_%s' % basename, d, 1)
 264                 if modconf:
 265                         name = '%s/etc/modutils/%s.conf' % (dvar, basename)
 266                         f = open(name, 'w')
 267                         f.write("%s\n" % modconf)
 268                         f.close()
 269
 270                 files = oe.data.getVar('FILES_%s' % pkg, d, 1)
 271                 files = "%s /etc/modutils/%s /etc/modutils/%s.conf" % (files, basename, basename)
 272                 oe.data.setVar('FILES_%s' % pkg, files, d)
 273
 274                 if vals.has_key("description"):
 275                         old_desc = oe.data.getVar('DESCRIPTION_' + pkg, d, 1) or ""
 276                         oe.data.setVar('DESCRIPTION_' + pkg, old_desc + "; " + vals["description"], d)
 277
 278                 rdepends_str = oe.data.getVar('RDEPENDS_' + pkg, d, 1)
 279                 if rdepends_str:
 280                         rdepends = rdepends_str.split()
 281                 else:
 282                         rdepends = []
 283                 rdepends.extend(get_dependencies(file, pattern, format))
 284                 oe.data.setVar('RDEPENDS_' + pkg, ' '.join(rdepends), d)
 285
 286         module_deps = parse_depmod()
 287         module_regex = '^(.*)\.k?o$'
 288         module_pattern = 'kernel-module-%s'
 289
 290         postinst = oe.data.getVar('pkg_postinst_modules', d, 1)
 291         postrm = oe.data.getVar('pkg_postrm_modules', d, 1)
 292         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')
 293
 294         import re, os
 295         metapkg = "kernel-modules"
 296         oe.data.setVar('ALLOW_EMPTY_' + metapkg, "1", d)
 297         oe.data.setVar('FILES_' + metapkg, "", d)
 298         blacklist = [ 'kernel-dev', 'kernel-image' ]
 299         for l in module_deps.values():
 300                 for i in l:
 301                         pkg = module_pattern % legitimize_package_name(re.match(module_regex, os.path.basename(i)).group(1))
 302                         blacklist.append(pkg)
 303         metapkg_rdepends = []
 304         packages = oe.data.getVar('PACKAGES', d, 1).split()
 305         for pkg in packages[1:]:
 306                 if not pkg in blacklist and not pkg in metapkg_rdepends:
 307                         metapkg_rdepends.append(pkg)
 308         oe.data.setVar('RDEPENDS_' + metapkg, ' '.join(metapkg_rdepends), d)
 309         oe.data.setVar('DESCRIPTION_' + metapkg, 'Kernel modules meta package', d)
 310         packages.append(metapkg)
 311         oe.data.setVar('PACKAGES', ' '.join(packages), d)
 312 }