first step of porting motorola-harpia to motorola-surnia (Moto E)

device/device-motorola-surnia/APKBUILD

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+# Reference: <https://postmarketos.org/devicepkg>
+pkgname="device-motorola-surnia"
+pkgdesc="Motorola Moto E (2nd Gen)"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="noarch"
+options="!check"
+depends="postmarketos-base linux-motorola-surnia mkbootimg mesa-dri-swrast"
+makedepends="devicepkg-dev"
+source="deviceinfo"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+sha512sums="c5ba74e2859ff0b25aac8561d20d618822031bf6436b98080d00fceadc2275e3427f688c32fc7b6c686f84c394f18fb3cda6513919e2ca49884cdf6ed7c99e0a  deviceinfo"

device/device-motorola-surnia/deviceinfo

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+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Motorola Moto E (2nd Gen)"
+deviceinfo_manufacturer="Motorola"
+deviceinfo_date=""
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_arch="armhf"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="540"
+deviceinfo_screen_height="960"
+deviceinfo_dev_touchscreen=""
+deviceinfo_dev_touchscreen_calibration=""
+deviceinfo_dev_keyboard=""
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="console=ttyHSL0,115200,n8 androidboot.console=ttyHSL0 androidboot.hardware=qcom msm_rtb.filter=0x3F ehci-hcd.park=3 vmalloc=400M androidboot.bootdevice=soc.0 utags.blkdev=/dev/block/platform/soc.0/by-name/utags utags.backup=/dev/block/platform/soc.0/by-name/utagsBackup movablecore=160M androidboot.write_protect=0"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="true"
+deviceinfo_flash_offset_base="0x80000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x01000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"
+
+

device/linux-motorola-surnia/APKBUILD

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+# Reference: <https://postmarketos.org/vendorkernel>
+# Kernel config based on: arch/arm/configs/surnia_defconfig
+
+pkgname="linux-motorola-surnia"
+pkgver=3.10.49
+pkgrel=0
+pkgdesc="Motorola Moto E (2nd Gen) kernel fork"
+arch="armhf"
+_carch="arm"
+_flavor="motorola-surnia"
+url="https://kernel.org"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev devicepkg-dev dtbtool gcc6 xz"
+
+# Compiler: GCC 6 (doesn't compile with newer versions)
+if [ "${CC:0:5}" != "gcc6-" ]; then
+    CC="gcc6-$CC"
+    HOSTCC="gcc6-gcc"
+    CROSS_COMPILE="gcc6-$CROSS_COMPILE"
+fi
+
+# Source
+_repository="android_kernel_motorola_msm8916"
+_commit="4c864820053bb70e21cf1e9764baefefd4d2f6b1"
+_config="config-${_flavor}.${arch}"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
+	$_config
+	gcc7-give-up-on-ilog2-const-optimizations.patch
+"
+builddir="$srcdir/${_repository}-${_commit}"
+
+prepare() {
+	default_prepare
+	downstreamkernel_prepare "$srcdir" "$builddir" "$_config" "$_carch" "$HOSTCC"
+}
+
+build() {
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+
+	# Generate master DTB (deviceinfo_bootimg_qcdt)
+	dtbTool -s 2048 -p "scripts/dtc/" -o "arch/arm/boot/dt.img" "arch/arm/boot/"
+}
+
+package() {
+	# kernel.release
+	install -D "$builddir/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+
+	# zImage (find the right one)
+	cd "$builddir/arch/$_carch/boot"
+	_target="$pkgdir/boot/vmlinuz-$_flavor"
+	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
+		[ -e "$_zimg" ] || continue
+		msg "zImage found: $_zimg"
+		install -Dm644 "$_zimg" "$_target"
+		break
+	done
+	if ! [ -e "$_target" ]; then
+		error "Could not find zImage in $PWD!"
+		return 1
+	fi
+
+	# Master DTB (deviceinfo_bootimg_qcdt)
+	install -Dm644 "$builddir/arch/arm/boot/dt.img" \
+		"$pkgdir/boot/dt.img"
+}
+
+sha512sums="28e70a5af0df65b85c257c4ca455553d38b17dad8d141876854c5a38502114638c8e59440cffcf81c278a6836e39ec0f63ed35dad825c49a8c3f299de7617b80  linux-motorola-surnia-4c864820053bb70e21cf1e9764baefefd4d2f6b1.tar.gz
+44b4dbdddbc054f5d8188fde5ae4197c6005aadbf0ebf82fdf50fa529bc5b09fed62744fdb6592a9790e99795c5f7be9763a515ff43bd990117372ac5ff2f8a2  config-motorola-surnia.armhf
+77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch"

device/linux-motorola-surnia/gcc7-give-up-on-ilog2-const-optimizations.patch

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+../../.shared-patches/linux/gcc7-give-up-on-ilog2-const-optimizations.patch