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.
32 lines
535 B
Bash
Executable File
32 lines
535 B
Bash
Executable File
#!/bin/sh
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# vim: set sw=4 ts=4 sts=4 et :
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set -e
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cleanup() {
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if [ -n "${tmproot}" ]; then
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if [ "${tmproot}" != / ]; then
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rm -rf "${tmproot}"
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fi
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unset tmproot
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fi
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}
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. ./config
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O="${1}"
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IMAGESDIR="${2}"
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trap cleanup INT TERM QUIT EXIT
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tmproot=$(mktemp -d)
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tmppath=$(mktemp -d)
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cd "${O}"
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genimage \
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--rootpath "${tmproot}" \
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--tmppath "${tmppath}" \
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--inputpath "${IMAGESDIR}" \
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--outputpath "${IMAGESDIR}" \
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--mkdosfs mkfs.vfat \
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--config "${OLDPWD}"/genimage.cfg
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