From f041247eef888601bb00200f1b8c0772e51e61cd Mon Sep 17 00:00:00 2001
From: wesley van tilburg <justwesley@protonmail.com>
Date: Thu, 7 Mar 2024 21:40:33 +0100
Subject: [PATCH] Add Ti(ny) Lo(ader) build script

---
 tilo/build.sh | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100755 tilo/build.sh

diff --git a/tilo/build.sh b/tilo/build.sh
new file mode 100755
index 0000000..b2a9e63
--- /dev/null
+++ b/tilo/build.sh
@@ -0,0 +1,69 @@
+#!/bin/sh
+
+#get latest non patch release candidate kernel and busybox version
+busybox_latest="$(curl -s "https://api.github.com/repos/mirror/busybox/tags" | jq -r '.[0].name' | tr "_" ".")"
+kernel_latest="$(curl -s "https://api.github.com/repos/torvalds/linux/tags" | jq -r '.[] .name' | awk '$0 !~/-/' | head -n1 | cut -c2-4)"
+
+#backups for when hitting ratelimits during testing :)
+#kernel_latest="6.7"
+#busybox_latest="1.36.0"
+
+echo "Using kernel version: $kernel_latest"
+echo "Using busybox version: $busybox_latest"
+
+kernel_major="$(echo "$kernel_latest" | cut -c1)"
+kernel_url="https://mirrors.edge.kernel.org/pub/linux/kernel/v$kernel_major.x"
+
+mkdir -p src
+cd src 
+
+wget "$kernel_url/linux-$kernel_latest.tar.xz"
+tar -xf linux-$kernel_latest.tar.xz
+cd linux-$kernel_latest
+	make defconfig
+	make -j 8  || exit
+
+cd ..
+
+wget https://busybox.net/downloads/busybox-$busybox_latest.tar.bz2
+tar -xf busybox-$busybox_latest.tar.bz2
+cd busybox-$busybox_latest
+	make defconfig
+	sed 's/^.*CONFIG_STATIC[^_].*$/CONFIG_STATIC=y/g' -i .config
+	make -j$(nproc) || exit
+        cd ..
+
+cd ..
+
+cp src/linux-$kernel_latest/arch/x86/boot/bzImage ./
+
+mkdir initrd
+cd initrd
+	
+	mkdir -p bin dev proc sys
+	cd bin
+		cp ../../src/busybox-$busybox_latest/busybox ./
+		for prog in $(./busybox --list); do
+			ln -s /bin/busybox ./$prog
+		done
+
+	cd ..
+
+	echo '#!/bin/sh' > init
+	echo 'mount -t sysfs sysfs /sys' >> init
+	echo 'mount -t proc proc /proc' >> init
+	echo 'mount -t devtmpfs udev /dev' >> init
+	echo 'sysctl -w kernel.printk="2 4 1 7"' >> init
+	echo 'clear' >> init
+	#todo: recompile to check if this fixes ctrl +c issues
+	echo '::respawn:-/bin/sh' >> init
+	#echo '/bin/sh' >> init
+
+	chmod -R 777 .
+
+	find . | cpio -o -H newc > ../initrd.img
+
+cd ..
+
+
+