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Patrick Williamsc124f4f2015-09-15 14:41:29 -05001SUMMARY = "Linux kernel Development Source"
2DESCRIPTION = "Development source linux kernel. When built, this recipe packages the \
3source of the preferred virtual/kernel provider and makes it available for full kernel \
4development or external module builds"
5
6SECTION = "kernel"
7
8LICENSE = "GPLv2"
Patrick Williamsc124f4f2015-09-15 14:41:29 -05009
10inherit linux-kernel-base
11
12# Whilst not a module, this ensures we don't get multilib extended (which would make no sense)
13inherit module-base
14
15# We need the kernel to be staged (unpacked, patched and configured) before
16# we can grab the source and make the source package. We also need the bits from
17# ${B} not to change while we install, so virtual/kernel must finish do_compile.
18do_install[depends] += "virtual/kernel:do_shared_workdir"
19# Need the source, not just the output of populate_sysroot
20do_install[depends] += "virtual/kernel:do_install"
21
22# There's nothing to do here, except install the source where we can package it
23do_fetch[noexec] = "1"
24do_unpack[noexec] = "1"
25do_patch[noexec] = "1"
26do_configure[noexec] = "1"
27do_compile[noexec] = "1"
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080028deltask do_populate_sysroot
Patrick Williamsc124f4f2015-09-15 14:41:29 -050029
Patrick Williamsc124f4f2015-09-15 14:41:29 -050030S = "${STAGING_KERNEL_DIR}"
31B = "${STAGING_KERNEL_BUILDDIR}"
32
Patrick Williamsc124f4f2015-09-15 14:41:29 -050033PACKAGE_ARCH = "${MACHINE_ARCH}"
34
Brad Bishop19323692019-04-05 15:28:33 -040035KERNEL_BUILD_ROOT="${nonarch_base_libdir}/modules/"
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080036
Patrick Williamsc124f4f2015-09-15 14:41:29 -050037do_install() {
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080038 kerneldir=${D}${KERNEL_BUILD_ROOT}${KERNEL_VERSION}
39 install -d $kerneldir
Patrick Williamsc124f4f2015-09-15 14:41:29 -050040
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080041 # create the directory structure
42 rm -f $kerneldir/build
43 rm -f $kerneldir/source
44 mkdir -p $kerneldir/build
Patrick Williamsc124f4f2015-09-15 14:41:29 -050045
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080046 # for compatibility with some older variants of this package, we
47 # create a /usr/src/kernel symlink to /lib/modules/<version>/source
48 mkdir -p ${D}/usr/src
49 (
50 cd ${D}/usr/src
Brad Bishop19323692019-04-05 15:28:33 -040051 lnr ${D}${KERNEL_BUILD_ROOT}${KERNEL_VERSION}/source kernel
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080052 )
Patrick Williamsc124f4f2015-09-15 14:41:29 -050053
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080054 # for on target purposes, we unify build and source
55 (
56 cd $kerneldir
57 ln -s build source
58 )
Patrick Williamsc124f4f2015-09-15 14:41:29 -050059
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080060 # first copy everything
61 (
62 cd ${S}
63 cp --parents $(find -type f -name "Makefile*" -o -name "Kconfig*") $kerneldir/build
64 cp --parents $(find -type f -name "Build" -o -name "Build.include") $kerneldir/build
65 )
Brad Bishop316dfdd2018-06-25 12:45:53 -040066
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080067 # then drop all but the needed Makefiles/Kconfig files
68 rm -rf $kerneldir/build/Documentation
69 rm -rf $kerneldir/build/scripts
70 rm -rf $kerneldir/build/include
71
72 # now copy in parts from the build that we'll need later
73 (
74 cd ${B}
75
76 cp Module.symvers $kerneldir/build
77 cp System.map* $kerneldir/build
78 if [ -s Module.markers ]; then
79 cp Module.markers $kerneldir/build
80 fi
81
82 cp .config $kerneldir/build
83
84 # This scripts copy blow up QA, so for now, we require a more
85 # complex 'make scripts' to restore these, versus copying them
86 # here. Left as a reference to indicate that we know the scripts must
87 # be dealt with.
88 # cp -a scripts $kerneldir/build
89
90 if [ -d arch/${ARCH}/scripts ]; then
91 cp -a arch/${ARCH}/scripts $kerneldir/build/arch/${ARCH}
92 fi
93 if [ -f arch/${ARCH}/*lds ]; then
94 cp -a arch/${ARCH}/*lds $kerneldir/build/arch/${ARCH}
95 fi
96
97 rm -f $kerneldir/build/scripts/*.o
98 rm -f $kerneldir/build/scripts/*/*.o
99
100 if [ "${ARCH}" = "powerpc" ]; then
101 if [ -e arch/powerpc/lib/crtsavres.S ] ||
102 [ -e arch/powerpc/lib/crtsavres.o ]; then
103 cp -a --parents arch/powerpc/lib/crtsavres.[So] $kerneldir/build/
104 fi
105 fi
106
107 if [ "${ARCH}" = "arm64" ]; then
108 cp -a --parents arch/arm64/kernel/vdso/vdso.lds $kerneldir/build/
109 fi
110
111 cp -a include $kerneldir/build/include
112 )
113
114 # now grab the chunks from the source tree that we need
115 (
116 cd ${S}
117
118 cp -a scripts $kerneldir/build
119
120 # if our build dir had objtool, it will also be rebuilt on target, so
121 # we copy what is required for that build
122 if [ -f ${B}/tools/objtool/objtool ]; then
123 # these are a few files associated with objtool, since we'll need to
124 # rebuild it
125 cp -a --parents tools/build/Build.include $kerneldir/build/
126 cp -a --parents tools/build/Build $kerneldir/build/
127 cp -a --parents tools/build/fixdep.c $kerneldir/build/
128 cp -a --parents tools/scripts/utilities.mak $kerneldir/build/
129
130 # extra files, just in case
131 cp -a --parents tools/objtool/* $kerneldir/build/
132 cp -a --parents tools/lib/str_error_r.c $kerneldir/build/
133 cp -a --parents tools/lib/string.c $kerneldir/build/
134 cp -a --parents tools/lib/subcmd/* $kerneldir/build/
135
136 cp -a --parents tools/include/* $kerneldir/build/
137 fi
138
139 if [ "${ARCH}" = "arm64" ]; then
140 # arch/arm64/include/asm/xen references arch/arm
141 cp -a --parents arch/arm/include/asm/xen $kerneldir/build/
142 # arch/arm64/include/asm/opcodes.h references arch/arm
143 cp -a --parents arch/arm/include/asm/opcodes.h $kerneldir/build/
144
145 cp -a --parents arch/arm64/kernel/vdso/gettimeofday.S $kerneldir/build/
146 cp -a --parents arch/arm64/kernel/vdso/sigreturn.S $kerneldir/build/
147 cp -a --parents arch/arm64/kernel/vdso/note.S $kerneldir/build/
148 cp -a --parents arch/arm64/kernel/vdso/gen_vdso_offsets.sh $kerneldir/build/
149
150 cp -a --parents arch/arm64/kernel/module.lds $kerneldir/build/
151 fi
152
Brad Bishop19323692019-04-05 15:28:33 -0400153 if [ "${ARCH}" = "powerpc" ]; then
154 # 5.0 needs these files, but don't error if they aren't present in the source
155 cp -a --parents arch/${ARCH}/kernel/syscalls/syscall.tbl $kerneldir/build/ 2>/dev/null || :
156 cp -a --parents arch/${ARCH}/kernel/syscalls/syscalltbl.sh $kerneldir/build/ 2>/dev/null || :
157 cp -a --parents arch/${ARCH}/kernel/syscalls/syscallhdr.sh $kerneldir/build/ 2>/dev/null || :
158 fi
159
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800160 # include the machine specific headers for ARM variants, if available.
161 if [ "${ARCH}" = "arm" ]; then
162 cp -a --parents arch/${ARCH}/mach-*/include $kerneldir/build/
163
164 # include a few files for 'make prepare'
165 cp -a --parents arch/arm/tools/gen-mach-types $kerneldir/build/
166 cp -a --parents arch/arm/tools/mach-types $kerneldir/build/
Brad Bishop19323692019-04-05 15:28:33 -0400167
168 # ARM syscall table tools only exist for kernels v4.10 or later
169 SYSCALL_TOOLS=$(find arch/arm/tools -name "syscall*")
170 if [ -n "$SYSCALL_TOOLS" ] ; then
171 cp -a --parents $SYSCALL_TOOLS $kerneldir/build/
172 fi
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800173
174 cp -a --parents arch/arm/kernel/module.lds $kerneldir/build/
175 fi
176
177 if [ -d arch/${ARCH}/include ]; then
178 cp -a --parents arch/${ARCH}/include $kerneldir/build/
179 fi
180
181 cp -a include $kerneldir/build
182
183 cp -a --parents tools/include/tools/le_byteshift.h $kerneldir/build/
184 cp -a --parents tools/include/tools/be_byteshift.h $kerneldir/build/
185
186 # required for generate missing syscalls prepare phase
187 cp -a --parents arch/x86/entry/syscalls/syscall_32.tbl $kerneldir/build
188
189 if [ "${ARCH}" = "x86" ]; then
190 # files for 'make prepare' to succeed with kernel-devel
191 cp -a --parents arch/x86/entry/syscalls/syscall_32.tbl $kerneldir/build/
192 cp -a --parents arch/x86/entry/syscalls/syscalltbl.sh $kerneldir/build/
193 cp -a --parents arch/x86/entry/syscalls/syscallhdr.sh $kerneldir/build/
194 cp -a --parents arch/x86/entry/syscalls/syscall_64.tbl $kerneldir/build/
195 cp -a --parents arch/x86/tools/relocs_32.c $kerneldir/build/
196 cp -a --parents arch/x86/tools/relocs_64.c $kerneldir/build/
197 cp -a --parents arch/x86/tools/relocs.c $kerneldir/build/
198 cp -a --parents arch/x86/tools/relocs_common.c $kerneldir/build/
199 cp -a --parents arch/x86/tools/relocs.h $kerneldir/build/
200 cp -a --parents arch/x86/purgatory/purgatory.c $kerneldir/build/
201
202 # 4.18 + have unified the purgatory files, so we ignore any errors if
203 # these files are not present
204 cp -a --parents arch/x86/purgatory/sha256.h $kerneldir/build/ 2>/dev/null || :
205 cp -a --parents arch/x86/purgatory/sha256.c $kerneldir/build/ 2>/dev/null || :
206
207 cp -a --parents arch/x86/purgatory/stack.S $kerneldir/build/
208 cp -a --parents arch/x86/purgatory/string.c $kerneldir/build/
209 cp -a --parents arch/x86/purgatory/setup-x86_64.S $kerneldir/build/
210 cp -a --parents arch/x86/purgatory/entry64.S $kerneldir/build/
211 cp -a --parents arch/x86/boot/string.h $kerneldir/build/
212 cp -a --parents arch/x86/boot/string.c $kerneldir/build/
213 cp -a --parents arch/x86/boot/ctype.h $kerneldir/build/
214 fi
215
216 if [ "${ARCH}" = "mips" ]; then
217 cp -a --parents arch/mips/Kbuild.platforms $kerneldir/build/
218 cp --parents $(find -type f -name "Platform") $kerneldir/build
219 cp --parents arch/mips/boot/tools/relocs* $kerneldir/build
220 cp -a --parents arch/mips/kernel/asm-offsets.c $kerneldir/build
221 cp -a --parents kernel/time/timeconst.bc $kerneldir/build
222 cp -a --parents kernel/bounds.c $kerneldir/build
223 cp -a --parents Kbuild $kerneldir/build
Brad Bishop19323692019-04-05 15:28:33 -0400224 cp -a --parents arch/mips/kernel/syscalls/*.sh $kerneldir/build 2>/dev/null || :
225 cp -a --parents arch/mips/kernel/syscalls/*.tbl $kerneldir/build 2>/dev/null || :
226 cp -a --parents arch/mips/tools/elf-entry.c $kerneldir/build 2>/dev/null || :
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800227 fi
228
229 # required to build scripts/selinux/genheaders/genheaders
230 cp -a --parents security/selinux/include/* $kerneldir/build/
Brad Bishopc342db32019-05-15 21:57:59 -0400231
232 # copy any localversion files
233 cp -a localversion* $kerneldir/build/ 2>/dev/null || :
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800234 )
235
236 # Make sure the Makefile and version.h have a matching timestamp so that
237 # external modules can be built
238 touch -r $kerneldir/build/Makefile $kerneldir/build/include/generated/uapi/linux/version.h
239
240 # Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
241 cp $kerneldir/build/.config $kerneldir/build/include/config/auto.conf
242
243 chown -R root:root ${D}
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500244}
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800245
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500246# Ensure we don't race against "make scripts" during cpio
247do_install[lockfiles] = "${TMPDIR}/kernel-scripts.lock"
248
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800249FILES_${PN} = "${KERNEL_BUILD_ROOT} ${KERNEL_SRC_PATH}"
250FILES_${PN}-dbg += "${KERNEL_BUILD_ROOT}*/build/scripts/*/.debug/*"
251
252RDEPENDS_${PN} = "bc python flex bison ${TCLIBC}-utils"
253# 4.15+ needs these next two RDEPENDS
254RDEPENDS_${PN} += "openssl-dev util-linux"
255# and x86 needs a bit more for 4.15+
256RDEPENDS_${PN} += "${@bb.utils.contains('ARCH', 'x86', 'elfutils', '', d)}"