samsung-i9003: support gcc8 (!307)
This patch forces the kernel to compile with gcc8 and includes by default INSTALL_MOD_STRIP=1.
This commit is contained in:
km2
Oliver Smith
parent
1c4980bda5
commit
2e9beef9f2
5 changed files with 71 additions and 172 deletions
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@ -1,144 +1,109 @@
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# Based on linux-lg-mako. Changes:
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# - add findutils makedepend (necessary for the initramfs)
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# - it builds an initramfs - do not use ramdisk.cpio and
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# ramdisk-recovery-device.cpio, in there, always use the
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# initramfs from the recovery partition ("isorec")
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# - directly boot to that initramfs, not only when the recovery
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# key combination was pressed.
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# - use Alpine's busybox-static instead of the pre-compiled
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# binary, that comes with the source
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#
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# Kernel config changes, based on: arch/arm/configs/latona_defconfig
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# - enable devtmpfs (needed for udev -> touch support in weston)
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# - change compression from CONFIG_KERNEL_LZMA=y to
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# CONFIG_KERNEL_GZIP=y (so it works with busybox)
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# Reference: <https://postmarketos.org/vendorkernel>
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# Kernel config based on: arch/arm/configs/latona_defconfig
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_vendor=samsung
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_flavor=samsung-i9003
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_hash="7b8d73dd32e6cd21107f9a963a32a5ed237a6e78"
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_config="config-${_flavor}.armhf"
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pkgname=linux-${_flavor}
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pkgname="linux-samsung-i9003"
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pkgver=3.0.101
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case $pkgver in
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*.*.*) _kernver=${pkgver%.*};;
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*.*) _kernver=$pkgver;;
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esac
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pkgrel=14
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arch="armhf"
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pkgrel=15
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pkgdesc="Samsung Galaxy SI SLC kernel"
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url="https://github.com/dhiru1602/android_kernel_samsung_latona"
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depends=""
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makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev
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findutils busybox-static-armhf gcc6"
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arch="armhf"
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_carch="arm"
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_flavor="samsung-i9003"
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url="https://kernel.org"
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license="GPL-2.0-only"
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options="!strip !check !tracedeps"
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install=
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makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev devicepkg-dev busybox-static-armhf"
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# Compiler: latest GCC from Alpine
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HOSTCC="${CC:-gcc}"
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HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
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# Source
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_repository="android_kernel_samsung_latona"
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_commit="7b8d73dd32e6cd21107f9a963a32a5ed237a6e78"
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_config="config-${_flavor}.${arch}"
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source="
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$pkgname-$_hash.tar.gz::https://github.com/dhiru1602/android_kernel_samsung_latona/archive/${_hash}.tar.gz
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$pkgname-$_commit.tar.gz::https://github.com/dhiru1602/${_repository}/archive/${_commit}.tar.gz
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$_config
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compiler-gcc6.h
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00_return_address.patch
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01_twl_power_init.patch
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02_mfd_driver_fix.patch
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03_fix_paranoid_network_disabled.patch
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gcc7-give-up-on-ilog2-const-optimizations.patch
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gcc8-fix-put-user.patch
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kernel-use-the-gnu89-standard-explicitly.patch
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init
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"
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subpackages=""
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license="GPL2"
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_abi_release=${pkgver}
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_carch="arm"
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# Compiler: this kernel was only tested with GCC6. Feel free to make a merge
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# request if you find out that it is booting working with newer GCCs as
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# well. See <https://postmarketos.org/vendorkernel> for instructions.
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if [ "${CC:0:5}" != "gcc6-" ]; then
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CC="gcc6-$CC"
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HOSTCC="gcc6-gcc"
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CROSS_COMPILE="gcc6-$CROSS_COMPILE"
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fi
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ksrcdir="$srcdir/android_kernel_samsung_latona-${_hash}"
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prepare() {
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local _patch_failed=
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cd "$ksrcdir"
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# first apply patches in specified order
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for i in $source; do
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case $i in
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*.patch)
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msg "Applying $i..."
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if ! patch -s -p1 -N -i "$srcdir"/$i; then
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echo $i >>failed
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_patch_failed=1
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fi
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;;
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esac
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done
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if ! [ -z "$_patch_failed" ]; then
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error "The following patches failed:"
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cat failed
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return 1
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fi
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# gcc6 support
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cp -v "$srcdir/compiler-gcc6.h" "$ksrcdir/include/linux/"
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mkdir -p "$srcdir"/build
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cp "$srcdir"/$_config "$srcdir"/build/.config
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make -C "$ksrcdir" O="$srcdir"/build ARCH="$_carch" HOSTCC="$HOSTCC" \
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silentoldconfig
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mkdir "$ksrcdir"/usr/latona_initramfs_files/
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builddir="$srcdir/${_repository}-${_commit}"
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prepare_isorec() {
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# Use Alpine's busybox.static instead of the pre-compiled busybox shipped
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# with the source
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mkdir "$builddir"/usr/latona_initramfs_files/
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cp -v /usr/$(arch_to_hostspec $arch)/bin/busybox.static \
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"$ksrcdir"/usr/latona_initramfs_files/busybox
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"$builddir"/usr/latona_initramfs_files/busybox
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# use custom init script in the initramfs which loads the initramfs from
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# the kernel2 partition ("isorec")
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cp -v "$srcdir"/init "$ksrcdir"/usr/latona_initramfs_files/init
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# do not use ramdisk.cpio and ramdisk-recovery-device.cpio, always use
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# the initramfs from the recovery partition ("isorec"), so we can build
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# it later and independently from the kernel. also directly boot that
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# partition, not only when the recovery key combination was used.
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cd "$builddir"/usr/
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mv latona_initramfs.list latona_initramfs.list_old
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grep -v "../../ramdisk" latona_initramfs.list_old > latona_initramfs.list
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cp -v "$srcdir"/init "$builddir"/usr/latona_initramfs_files/init
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# Paths supplied to gen_initramfs_list.sh are prefixed with "source/".
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ln -s "$builddir" ln -s "$builddir"/source
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}
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mkdir -p "$srcdir"/build
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cp "$srcdir"/$_config "$srcdir"/build/.config
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make -C "$ksrcdir" O="$srcdir"/build ARCH="$_carch" HOSTCC="$HOSTCC" \
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silentoldconfig
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prepare() {
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default_prepare
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prepare_isorec
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cd "$builddir"
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downstreamkernel_prepare "$srcdir" "$builddir" "$_config" "$_carch" "$HOSTCC"
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}
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build() {
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cd "$srcdir"/build
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unset LDFLAGS
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make ARCH="$_carch" CC="${CC:-gcc}" \
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KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine" \
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KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS" \
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CFLAGS_MODULE=-fno-pic
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}
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package() {
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install -Dm644 "$srcdir/build/arch/arm/boot/zImage" \
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"$pkgdir/boot/vmlinuz-$_flavor"
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install -D "$srcdir/build/include/config/kernel.release" \
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# kernel.release
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install -D "$builddir/include/config/kernel.release" \
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"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
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cd "$srcdir"/build
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# zImage (find the right one)
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cd "$builddir/arch/$_carch/boot"
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_target="$pkgdir/boot/vmlinuz-$_flavor"
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for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
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[ -e "$_zimg" ] || continue
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msg "zImage found: $_zimg"
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install -Dm644 "$_zimg" "$_target"
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break
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done
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if ! [ -e "$_target" ]; then
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error "Could not find zImage in $PWD!"
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return 1
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fi
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cd "$builddir"
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unset LDFLAGS
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echo "--[ Installing modules ]--"
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make ARCH="$_carch" CC="${CC:-gcc}" \
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KBUILD_BUILD_VERSION="$((pkgrel + 1))-Alpine" \
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INSTALL_MOD_PATH="$pkgdir" modules_install
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KBUILD_BUILD_VERSION="$((pkgrel + 1))-postmarketOS" \
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INSTALL_MOD_PATH="$pkgdir" INSTALL_MOD_STRIP=1 modules_install
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}
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sha512sums="b7ca46b856a0c160ae36a98da39147deb85c054e902447ab68bcd4a011986eee486fb681d0bb832b9b57797aca35332483e99379b792bd467b1f030328bd83c7 linux-samsung-i9003-7b8d73dd32e6cd21107f9a963a32a5ed237a6e78.tar.gz
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ac6d9fd10aca7a9460d26bd78d70a6aacfdc9ca28ec10a04210211f748724dbb0018c6388d407327c8736f896c956b0d8ba4b3c72f05e65cd664a8261381a9a9 config-samsung-i9003.armhf
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d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc compiler-gcc6.h
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c40eaa11547f5bc2b1ff965506bdfe3015ff16e4b5ad9ccb3b8134ceafd1d32407c4ef2b213e02e036ce1e9bdcbfe768dff7d4b054bec77705a176c1f783b6f5 00_return_address.patch
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1972a2b5c429d6bf5fa1423e8805bb89bbd80c4efe6d235cb2037de6ba4d15c01e90239392161d6e5a0802eafaab6e8b468a49a12dc5b66469a111262cde2047 01_twl_power_init.patch
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5b951a2ab60a89fbc3ca209960987035001a6f9147f8ab5c05a6b49ec6dee75d0b6d053bef28df37e583bfc903599beed16692e25ee363e6200e14839d0dda65 02_mfd_driver_fix.patch
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df62e03666313bb03d9a455eac875f170a55d378b6e56b847c1c6ff1ce5cfafcfdf1d7605754ca3c684840ea00357f9ec4c6621f6ff77377132a484b9258f6f7 03_fix_paranoid_network_disabled.patch
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77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7 gcc7-give-up-on-ilog2-const-optimizations.patch
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197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967 gcc8-fix-put-user.patch
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ad0182a483791fc88e058838bc331b2f04a75ba291e763767babdb815efadfc3b4fda97e69e2e3f00a426cabea088e35297a92bd287592597d1e309be68ee92c kernel-use-the-gnu89-standard-explicitly.patch
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dd4094d5f4ec281d32f12af88cb22a782e497c8e52f69cf60b73ac7d6171fc95f1f8040b3d0ad2ff3f016d22ac1d91c5b522e5d03203534a76742bc55a082af5 init"
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@ -1,69 +0,0 @@
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// SOURCE:
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// https://github.com/NextThingCo/CHIP-u-boot/issues/10#issuecomment-287515505
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#ifndef __LINUX_COMPILER_H
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#error "Please don't include <linux/compiler-gcc6.h> directly, include <linux/compiler.h> instead."
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#endif
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#define __used __attribute__((__used__))
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#define __must_check __attribute__((warn_unused_result))
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#define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
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/* Mark functions as cold. gcc will assume any path leading to a call
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to them will be unlikely. This means a lot of manual unlikely()s
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are unnecessary now for any paths leading to the usual suspects
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like BUG(), printk(), panic() etc. [but let's keep them for now for
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older compilers]
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Early snapshots of gcc 4.3 don't support this and we can't detect this
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in the preprocessor, but we can live with this because they're unreleased.
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Maketime probing would be overkill here.
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gcc also has a __attribute__((__hot__)) to move hot functions into
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a special section, but I don't see any sense in this right now in
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the kernel context */
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#define __cold __attribute__((__cold__))
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#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
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#ifndef __CHECKER__
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# define __compiletime_warning(message) __attribute__((warning(message)))
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# define __compiletime_error(message) __attribute__((error(message)))
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#endif /* __CHECKER__ */
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/*
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* Mark a position in code as unreachable. This can be used to
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* suppress control flow warnings after asm blocks that transfer
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* control elsewhere.
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*
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* Early snapshots of gcc 4.5 don't support this and we can't detect
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* this in the preprocessor, but we can live with this because they're
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* unreleased. Really, we need to have autoconf for the kernel.
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*/
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#define unreachable() __builtin_unreachable()
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/* Mark a function definition as prohibited from being cloned. */
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#define __noclone __attribute__((__noclone__))
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/*
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* Tell the optimizer that something else uses this function or variable.
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*/
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#define __visible __attribute__((externally_visible))
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/*
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* GCC 'asm goto' miscompiles certain code sequences:
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*
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* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
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*
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* Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
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*
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* (asm goto is automatically volatile - the naming reflects this.)
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*/
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#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
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#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
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#define __HAVE_BUILTIN_BSWAP32__
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#define __HAVE_BUILTIN_BSWAP64__
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#define __HAVE_BUILTIN_BSWAP16__
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#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
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@ -0,0 +1 @@
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../../.shared-patches/linux/gcc7-give-up-on-ilog2-const-optimizations.patch
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1
device/linux-samsung-i9003/gcc8-fix-put-user.patch
Symbolic link
1
device/linux-samsung-i9003/gcc8-fix-put-user.patch
Symbolic link
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@ -0,0 +1 @@
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../../.shared-patches/linux/gcc8-fix-put-user.patch
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@ -0,0 +1 @@
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../../.shared-patches/linux/kernel-use-the-gnu89-standard-explicitly.patch
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