[$] BPFd: Running BCC tools remotely across systems and architectures

BPF is an increasingly capable tool for instrumenting and tracing theoperation of the kernel; it has enabled the creation of the growing set ofBCC tools. Unfortunately, BCC has no support for a cross-developmentworkflow where the development machine and the target machine running thedeveloped code are different. Cross-development is favored byembedded-systems kernel developers who tend to develop on an x86 host andthen flash and test their code on SoCs (System on Chips) based on the ARMarchitecture. In this article, I introduce BPFd, a project to enable crossdevelopment using BPF and BCC.