From 1945a9052510d99afeef4f998beede519c4b2cc5 Mon Sep 17 00:00:00 2001
From: John Sanpe <sanpeqf@gmail.com>
Date: Mon, 9 Oct 2023 19:27:59 +0800
Subject: [PATCH] initial commit

Signed-off-by: John Sanpe <sanpeqf@gmail.com>
---
 .github/workflows/build.yml |  32 ++++++++++++
 .gitmodules                 |   7 +++
 build.sh                    | 100 ++++++++++++++++++++++++++++++++++++
 linux                       |   1 +
 lk2nd                       |   1 +
 resize2fs.service           |  10 ++++
 6 files changed, 151 insertions(+)
 create mode 100644 .github/workflows/build.yml
 create mode 100644 .gitmodules
 create mode 100755 build.sh
 create mode 160000 linux
 create mode 160000 lk2nd
 create mode 100644 resize2fs.service

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..fe521ed
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,32 @@
+name: archlinux arm build nightly
+
+on:
+  repository_dispatch:
+  workflow_dispatch:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+
+    name: Test on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install dependencies
+        run: |
+          sudo apt update
+          sudo apt install make mkbootimg device-tree-compiler \
+            gcc-arm-none-eabi gcc-aarch64-linux-gnu  \
+            libarchive-tools arch-install-scripts qemu-user-static
+      - name: Initialization submodule
+        run: git submodule update --init
+      - name: Build packets
+        run: sudo bash build.sh
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..cd19ce2
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,7 @@
+[submodule "linux"]
+	path = linux
+	url = https://github.com/msm8916-mainline/linux.git
+	branch = msm8916/6.5.2
+[submodule "lk2nd"]
+	path = lk2nd
+	url = https://github.com/msm8916-mainline/lk2nd.git
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..e1e102b
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+
+kerndtb="build/kernel-dtb"
+bootimg="build/boot.img"
+lk2ndimg="build/aboot.img"
+
+rootfs="build/rootfs"
+ramdisk="$rootfs/boot/initramfs-linux.img"
+rootimg="build/rootfs.img"
+
+function make_boot()
+{
+    kernel="linux/arch/arm64/boot/Image.gz"
+    dtbfile="linux/arch/arm64/boot/dts/qcom/msm8916-thwc-ufi001c.dtb"
+    cat ${kernel} ${dtbfile} > ${kerndtb}
+}
+
+function make_image()
+{
+    unset options
+    options+=" --base 0x80000000"
+    options+=" --pagesize 2048"
+    options+=" --kernel_offset 0x00080000"
+    options+=" --second_offset 0x00f00000"
+    options+=" --tags_offset 0x01e00000"
+    options+=" --ramdisk_offset 0x02000000"
+    options+=" --kernel ${kerndtb}"
+    options+=" --ramdisk ${ramdisk}"
+    options+=" -o ${bootimg}"
+
+    cmdline="earlycon root=PARTUUID=a7ab80e8-e9d1-e8cd-f157-93f69b1d141e console=ttyMSM0,115200 rw"
+    mkbootimg --cmdline "${cmdline}" ${options}
+}
+
+function build_lk2nd()
+{
+    cd lk2nd
+    make TOOLCHAIN_PREFIX=arm-none-eabi- lk2nd-msm8916 -j$[$(nproc) * 2]
+
+    cd -
+    cp -p lk2nd/build-lk2nd-msm8916/emmc_appsboot.mbn $lk2ndimg
+}
+
+function build_linux()
+{
+    cd linux
+    make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- msm8916_defconfig
+    make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j$[$(nproc) * 2]
+    make INSTALL_MOD_PATH=$rootfs modules_install
+    cd -
+}
+
+function prepare_rootfs()
+{
+    url="http://os.archlinuxarm.org/os/ArchLinuxARM-aarch64-latest.tar.gz"
+    rootpack="build/ArchLinuxARM-aarch64-latest.tar.gz"
+
+    if [ ! -e $rootpack ]; then
+        curl -L -o $rootpack $url
+    fi
+
+    dd if=/dev/zero of=$rootimg bs=1MiB count=2048
+    mkfs.ext4 $rootimg
+
+    mkdir -p $rootfs
+    mount -o loop $rootimg $rootfs
+    bsdtar -xpf $rootpack -C $rootfs
+    sync
+}
+
+function pack_rootfs()
+{
+    umount $rootfs
+    tune2fs -M / $rootimg
+    e2fsck -yf -E discard $rootimg
+
+    resize2fs -M $rootimg
+    e2fsck -yf $rootimg
+    zstd $rootimg -o $rootimg.zst
+}
+
+function generate_checksum()
+{
+    sha256sum $lk2ndimg > $lk2ndimg.sha256sum
+    sha256sum $bootimg > $bootimg.sha256sum
+    sha256sum $rootimg.zst > $rootimg.zst.sha256sum
+}
+
+set -ev
+mkdir -p build
+
+prepare_rootfs
+build_lk2nd
+build_linux
+
+make_boot
+make_image
+
+pack_rootfs
+generate_checksum
diff --git a/linux b/linux
new file mode 160000
index 0000000..702e255
--- /dev/null
+++ b/linux
@@ -0,0 +1 @@
+Subproject commit 702e2551f6a48c3df82212c842a662be41184281
diff --git a/lk2nd b/lk2nd
new file mode 160000
index 0000000..3c9739a
--- /dev/null
+++ b/lk2nd
@@ -0,0 +1 @@
+Subproject commit 3c9739aaf183d94782ab0dfb5a0f7b4a6808c08b
diff --git a/resize2fs.service b/resize2fs.service
new file mode 100644
index 0000000..30d20a2
--- /dev/null
+++ b/resize2fs.service
@@ -0,0 +1,10 @@
+[Unit]
+Description=Resize the root filesystem to fill partition
+
+[Service]
+Type=oneshot
+ExecStart=/usr/sbin/resize2fs /dev/disk/by-partlabel/rootfs
+ExecStartPost=/usr/bin/systemctl disable resize2fs.service
+
+[Install]
+WantedBy=multi-user.target