Dustin C. Hatch
4900085a1c
When running inside a QEMU microvm with the source directory shared via 9pfs, the kernel build process fails > Error: Could not mmap file: vmlinux Thus, we need to run the build in a path on a local filesystem. To support this, the Makefile now supports an `O` option, and all the build scripts have been adjusted to make use of it as needed. Since building in a local filesystem would ultimately discard the final artifacts when the VM terminates, we need yet a different location for the files we want to keep. The `IMAGESDIR` option can be used to specify this path. This path can be on a shared filesystem, thus saving the artifacts outside the microvm.
40 lines
1.1 KiB
Bash
Executable File
40 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
|
|
# vim: set sw=4 ts=4 sts=4 et :
|
|
|
|
set -e
|
|
|
|
O="${1}"
|
|
|
|
. ./config
|
|
|
|
emerge -vnj ${kernel_pkg}
|
|
|
|
export ARCH=arm64 CROSS_COMPILE=${target}-
|
|
unset MAKEFLAGS MAKEOVERRIDES MAKELEVEL
|
|
mkdir -p "${O}"/linux
|
|
/usr/src/linux/scripts/kconfig/merge_config.sh -m \
|
|
-O "${O}"/linux \
|
|
/usr/src/linux/arch/*/configs/${kernel_defconfig}_defconfig \
|
|
linux.config
|
|
cd "${O}"/linux
|
|
make -C /usr/src/linux O=${PWD} olddefconfig
|
|
make -j$(nproc)
|
|
touch arch/arm64/boot/Image.gz
|
|
kver=$(make -s kernelversion)
|
|
make modules_install INSTALL_MOD_PATH=/mnt/gentoo/usr
|
|
cd -
|
|
|
|
printf 'Installing Kernel %s ...\n' "${kver}"
|
|
mkdir -p /mnt/gentoo/boot
|
|
cp -au "${O}"/linux/arch/arm64/boot/Image.gz /mnt/gentoo/boot/vmlinuz-${kver}
|
|
cp -au "${O}"/linux/.config /mnt/gentoo/boot/config-${kver}
|
|
cp -au "${O}"/linux/System.map /mnt/gentoo/boot/System.map-${kver}
|
|
|
|
printf 'Installing device tree binaries ...\n'
|
|
mkdir -p "${O}"/efi-part/overlays
|
|
cp -u "${O}"/linux/arch/arm64/boot/dts/${device_tree} "${O}"/efi-part/
|
|
cp -u \
|
|
"${O}"/linux/arch/arm64/boot/dts/overlays/*.dtb \
|
|
"${O}"/linux/arch/arm64/boot/dts/overlays/*.dtbo \
|
|
"${O}"/efi-part/overlays/
|