[2607.23900] KernelScript: Cross-Boundary Typed DSL for eBPF Applications

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arXiv:2607.23900 (cs)

[Submitted on 27 Jul 2026]

Title:KernelScript: Cross-Boundary Typed DSL for eBPF Applications

Authors:Cong Wang, Siyuan Sun, Yusheng Zheng<br>View a PDF of the paper titled KernelScript: Cross-Boundary Typed DSL for eBPF Applications, by Cong Wang and 2 other authors

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Abstract:eBPF lets developers extend Linux with custom packet processing, tracing, and scheduling logic, and a verifier proves before execution that the code will not crash the kernel. The programming model, however, is fragmented: a single application spans kernel code, a userspace loader, and shared maps, yet the relationships among these pieces go unchecked. E.g. A map or event type defined differently on each side silently corrupts shared state. We observe that these cross-boundary relationships duplicate information that a type system can unify. We present KernelScript, a DSL that types maps, program handles, and execution domains in one source, then compiles to standard C through the original toolchain. We evaluate KernelScript on 43 eBPF workloads covering XDP, TC, kprobe, tracepoint, and struct_ops. KernelScript rejects cross-boundary bugs at compile time that standard C/libbpf still builds and loads, a unified source shrinks the diffs for cross-boundary changes by 5x, and generated code remains compatible with the existing toolchain.

Subjects:

Programming Languages (cs.PL); Operating Systems (cs.OS)

Cite as:<br>arXiv:2607.23900 [cs.PL]

(or<br>arXiv:2607.23900v1 [cs.PL] for this version)

https://doi.org/10.48550/arXiv.2607.23900

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arXiv-issued DOI via DataCite (pending registration)

Submission history<br>From: Yusheng Zheng [view email]<br>[v1]<br>Mon, 27 Jul 2026 00:14:33 UTC (79 KB)

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