pkg/build: move from pkg/kernel

Rename pkg/kernel to pkg/build and prepare for multi-OS support.

1 files changed, 113 insertions, 0 deletions

diff --git a/pkg/build/linux_generated.go b/pkg/build/linux_generated.go
new file mode 100644
index 000000000..95da10aee
--- /dev/null
+++ b/pkg/build/linux_generated.go
@@ -0,0 +1,113 @@
+// AUTOGENERATED FILE
+
+package build
+
+const createImageScript = `#!/bin/bash
+
+
+set -eux
+
+CLEANUP=""
+trap 'eval " $CLEANUP"' EXIT
+
+if [ ! -e $1/sbin/init ]; then
+	echo "usage: create-gce-image.sh /dir/with/user/space/system /path/to/bzImage"
+	exit 1
+fi
+
+if [ "$(basename $2)" != "bzImage" ]; then
+	echo "usage: create-gce-image.sh /dir/with/user/space/system /path/to/bzImage"
+	exit 1
+fi
+
+SYZ_VM_TYPE="${SYZ_VM_TYPE:-qemu}"
+if [ "$SYZ_VM_TYPE" == "qemu" ]; then
+	:
+elif [ "$SYZ_VM_TYPE" == "gce" ]; then
+	:
+else
+	echo "SYZ_VM_TYPE has unsupported value $SYZ_VM_TYPE"
+	exit 1
+fi
+
+sudo umount disk.mnt || true
+if [ "$SYZ_VM_TYPE" == "qemu" ]; then
+	:
+elif [ "$SYZ_VM_TYPE" == "gce" ]; then
+	sudo modprobe nbd
+	sudo qemu-nbd -d /dev/nbd0 || true
+fi
+rm -rf disk.mnt disk.raw || true
+
+fallocate -l 2G disk.raw
+if [ "$SYZ_VM_TYPE" == "qemu" ]; then
+	DISKDEV="$(sudo losetup -f --show -P disk.raw)"
+	CLEANUP="sudo losetup -d $DISKDEV; $CLEANUP"
+elif [ "$SYZ_VM_TYPE" == "gce" ]; then
+	DISKDEV="/dev/nbd0"
+	sudo qemu-nbd -c $DISKDEV --format=raw disk.raw
+	CLEANUP="sudo qemu-nbd -d $DISKDEV; $CLEANUP"
+fi
+echo -en "o\nn\np\n1\n\n\na\nw\n" | sudo fdisk $DISKDEV
+PARTDEV=$DISKDEV"p1"
+until [ -e $PARTDEV ]; do sleep 1; done
+sudo -E mkfs.ext4 $PARTDEV
+mkdir -p disk.mnt
+CLEANUP="rm -rf disk.mnt; $CLEANUP"
+sudo mount $PARTDEV disk.mnt
+CLEANUP="sudo umount disk.mnt; $CLEANUP"
+sudo cp -a $1/. disk.mnt/.
+sudo cp $2 disk.mnt/vmlinuz
+sudo sed -i "/^root/ { s/:x:/::/ }" disk.mnt/etc/passwd
+echo "T0:23:respawn:/sbin/getty -L ttyS0 115200 vt100" | sudo tee -a disk.mnt/etc/inittab
+echo -en "auto lo\niface lo inet loopback\nauto eth0\niface eth0 inet dhcp\n" | sudo tee disk.mnt/etc/network/interfaces
+echo "debugfs /sys/kernel/debug debugfs defaults 0 0" | sudo tee -a disk.mnt/etc/fstab
+echo 'binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc defaults 0 0' | sudo tee -a disk.mnt/etc/fstab
+for i in {0..31}; do
+	echo "KERNEL==\"binder$i\", NAME=\"binder$i\", MODE=\"0666\"" | \
+		sudo tee -a disk.mnt/etc/udev/50-binder.rules
+done
+echo 'SELINUX=disabled' | sudo tee disk.mnt/etc/selinux/config
+
+echo "kernel.printk = 7 4 1 3" | sudo tee -a disk.mnt/etc/sysctl.conf
+echo "debug.exception-trace = 0" | sudo tee -a disk.mnt/etc/sysctl.conf
+SYZ_SYSCTL_FILE="${SYZ_SYSCTL_FILE:-}"
+if [ "$SYZ_SYSCTL_FILE" != "" ]; then
+	cat $SYZ_SYSCTL_FILE | sudo tee -a disk.mnt/etc/sysctl.conf
+fi
+
+echo -en "127.0.0.1\tlocalhost\n" | sudo tee disk.mnt/etc/hosts
+echo "nameserver 8.8.8.8" | sudo tee -a disk.mnt/etc/resolve.conf
+echo "ClientAliveInterval 420" | sudo tee -a disk.mnt/etc/ssh/sshd_config
+echo "syzkaller" | sudo tee disk.mnt/etc/hostname
+rm -f key key.pub
+ssh-keygen -f key -t rsa -N ""
+sudo mkdir -p disk.mnt/root/.ssh
+sudo cp key.pub disk.mnt/root/.ssh/authorized_keys
+sudo chown root disk.mnt/root/.ssh/authorized_keys
+sudo mkdir -p disk.mnt/boot/grub
+
+CMDLINE=""
+SYZ_CMDLINE_FILE="${SYZ_CMDLINE_FILE:-}"
+if [ "$SYZ_CMDLINE_FILE" != "" ]; then
+	CMDLINE=$(awk '{printf("%s ", $0)}' $SYZ_CMDLINE_FILE)
+fi
+
+cat << EOF | sudo tee disk.mnt/boot/grub/grub.cfg
+terminal_input console
+terminal_output console
+set timeout=0
+menuentry 'linux' --class gnu-linux --class gnu --class os {
+	insmod vbe
+	insmod vga
+	insmod video_bochs
+	insmod video_cirrus
+	insmod gzio
+	insmod part_msdos
+	insmod ext2
+	set root='(hd0,1)'
+	linux /vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 $CMDLINE
+}
+EOF
+sudo grub-install --target=i386-pc --boot-directory=disk.mnt/boot --no-floppy $DISKDEV
+`