New device: xiaomi-cereus (Xiaomi Redmi 6)

device/testing/device-xiaomi-cereus/APKBUILD

+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-xiaomi-cereus
+pkgdesc="Xiaomi Redmi 6"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="armv7"
+options="!check !archcheck"
+depends="
+	linux-xiaomi-cereus
+	mkbootimg
+	postmarketos-base
+	msm-fb-refresher
+"
+makedepends="devicepkg-dev"
+source="
+	deviceinfo
+	modules-initfs
+"
+
+build() {
+  devicepkg_build $startdir $pkgname
+}
+
+package() {
+  devicepkg_package $startdir $pkgname
+}
+
+sha512sums="
+544ec7dedbf2471eba1fce425a8e98f6b6d3cf1e73a447a42f8b2715391aa6b3b3f2502e822c1eef77f24b79343bfd808ab6ef58d17d23b0aacb56f3b87c3efc  deviceinfo
+03cab135b4d8d249724a36e30af94404ad56fb14f30819838a2fa35a84ec4f65152a72db7534c97fcfe0aa4de16c112f556f799f66ec8134f76aba84efc3eafa  modules-initfs
+"

device/testing/device-xiaomi-cereus/deviceinfo

+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell
+# scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Xiaomi Redmi 6"
+deviceinfo_manufacturer="Xiaomi"
+deviceinfo_codename="xiaomi-cereus"
+deviceinfo_year="2018"
+deviceinfo_dtb=""
+deviceinfo_arch="armv7"
+
+# Device related
+deviceinfo_chassis="handset"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="720"
+deviceinfo_screen_height="1440"
+
+# Bootloader related
+deviceinfo_flash_method="mtkclient"
+# deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="bootopt=64S3,32S1,32S1 buildvariant=user"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="false"
+deviceinfo_bootimg_mtk_mkimage="false"
+deviceinfo_bootimg_dtb_second="false"
+deviceinfo_flash_pagesize="2048"
+deviceinfo_header_version="1"
+deviceinfo_flash_offset_base="0x40000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x11b00000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x07880000"
+

device/testing/device-xiaomi-cereus/modules-initfs

+# Remove this comment after reading, or the file if unnecessary (CHANGEME!)
+# This file can contain a list of modules to be included in the initramfs,
+# so that they are available in early boot stages. It should have one
+# module name per line. If there are multiple kernel variants with different
+# requirements for modules into the initramfs, one modules-initfs.$variant
+# file should be created for each of them.

device/testing/linux-xiaomi-cereus/0001-gcc10-extern-YYLOC-global-declaration.patch

+From 1978be4d1641894fe7f1c6999d77a6a455b4c655 Mon Sep 17 00:00:00 2001
+From: Jerin Philip <jerinphilip@live.in>
+Date: Mon, 11 Sep 2023 02:15:18 +0530
+Subject: [PATCH 1/2] gcc10 extern YYLOC global declaration
+
+Based on https://lkml.org/lkml/2020/4/1/1206. In original patch, YYLOC declaration was removed.
+However, using original patch, which removes yylloc declaration on 3.18.14 kernel version results in 'yylloc not declared' error.
+See part of the original description below:
+
+gcc 10 will default to -fno-common, which causes this error at link
+time:
+
+  (.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here
+
+This is because both dtc-lexer as well as dtc-parser define the same
+global symbol yyloc. Before with -fcommon those were merged into one
+defintion. The proper solution would be to to mark this as "extern",
+---
+ scripts/dtc/dtc-lexer.l             | 2 +-
+ scripts/dtc/dtc-lexer.lex.c_shipped | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/scripts/dtc/dtc-lexer.l b/scripts/dtc/dtc-lexer.l
+index 790fbf6cf2d7..e7eab4d7c5a9 100644
+--- a/scripts/dtc/dtc-lexer.l
++++ b/scripts/dtc/dtc-lexer.l
+@@ -38,7 +38,7 @@ LINECOMMENT	"//".*\n
+ #include "srcpos.h"
+ #include "dtc-parser.tab.h"
+ 
+-YYLTYPE yylloc;
++extern YYLTYPE yylloc;
+ extern bool treesource_error;
+ 
+ /* CAUTION: this will stop working if we ever use yyless() or yyunput() */
+diff --git a/scripts/dtc/dtc-lexer.lex.c_shipped b/scripts/dtc/dtc-lexer.lex.c_shipped
+index ba525c2f9fc2..a2fe8dbc0fd3 100644
+--- a/scripts/dtc/dtc-lexer.lex.c_shipped
++++ b/scripts/dtc/dtc-lexer.lex.c_shipped
+@@ -637,7 +637,7 @@ char *yytext;
+ #include "srcpos.h"
+ #include "dtc-parser.tab.h"
+ 
+-YYLTYPE yylloc;
++extern YYLTYPE yylloc;
+ extern bool treesource_error;
+ 
+ /* CAUTION: this will stop working if we ever use yyless() or yyunput() */
+-- 
+2.42.0
+

device/testing/linux-xiaomi-cereus/APKBUILD

+# Reference: <https://postmarketos.org/vendorkernel>
+# Kernel config based on: arch/arm64/configs/(CHANGEME!)
+
+pkgname=linux-xiaomi-cereus
+pkgver=4.9.119
+pkgrel=0
+pkgdesc="Xiaomi Redmi 6 kernel fork"
+arch="armv7"
+_carch="arm"
+_flavor="xiaomi-cereus"
+url="https://github.com/xiaomi-mt6765/android_kernel_xiaomi_mt6765"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps pmb:cross-native"
+makedepends="
+	bash
+	bc
+	bison
+	devicepkg-dev
+	findutils
+	flex
+	openssl-dev
+	perl
+  python3
+"
+
+# Source
+_repository="android_kernel_xiaomi_mt6765"
+_commit="31dbe7b6881b35094fa220a68f6c476c615f10dc"
+_config="config-$_flavor.$arch"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/xiaomi-mt6765/$_repository/archive/$_commit.tar.gz
+	$_config
+	0001-gcc10-extern-YYLOC-global-declaration.patch
+	0002-Port-drvgen-scripts-to-Python3.patch
+"
+builddir="$srcdir/$_repository-$_commit"
+_outdir="out"
+
+prepare() {
+  default_prepare
+  . downstreamkernel_prepare
+}
+
+build() {
+  unset LDFLAGS
+  make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
+    KBUILD_BUILD_VERSION="$((pkgrel + 1))-postmarketOS" KBUILD_VERBOSE=0
+}
+
+package() {
+  downstreamkernel_package "$builddir" "$pkgdir" "$_carch" \
+    "$_flavor" "$_outdir"
+}
+
+sha512sums="
+c543d691eac482c6bef8c6b5c42cf2643e53745ac437c659de6b31720e5e879cc5ecfab1ac63c60eea24acb7a9e40db5e54d3ac5a461c6136d073bdc1ff3560f  linux-xiaomi-cereus-31dbe7b6881b35094fa220a68f6c476c615f10dc.tar.gz
+6bbf8600f160db6d0d8fb3d56afb4de43dc56168c37554af4223c9e6eeb7df87bca20d855eb3b129bb35900f51113712499c9dbf5227c58135a53c56bc427953  config-xiaomi-cereus.armv7
+6d3dd281d69b561ab18693b07b72fe1bc87626a27f72ae1b0f72be2bc42fe45611bf3d8d35543107ac5673ee099a1013b615274f9135627f5b878a9f2cd51b5f  0001-gcc10-extern-YYLOC-global-declaration.patch
+6e8e12268c0c5eff0e3d0964f26678929410138a8783c628953112e449400cf8660e83321cd9cebf34ac74dd008f32dd4b0b6bdfa7097083cbaa23920367f13e  0002-Port-drvgen-scripts-to-Python3.patch
+"