Cache BPF objects once on amd64 and reuse for multi-arch builds#12365
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hjiawei wants to merge 1 commit intoprojectcalico:masterfrom
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Cache BPF objects once on amd64 and reuse for multi-arch builds#12365hjiawei wants to merge 1 commit intoprojectcalico:masterfrom
hjiawei wants to merge 1 commit intoprojectcalico:masterfrom
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BPF bytecode targets the BPF virtual machine, not the host CPU, making compiled .o files architecture-independent across amd64, arm64, and ppc64le. This change builds BPF objects once on amd64 and caches them via Semaphore cache for reuse by multi-arch and push-images builds. The PRE_BUILT_BPF_OBJECTS Makefile flag skips BPF .o compilation while still building the architecture-specific libbpf (needed for CGO linking). Both Felix and Node Build jobs store the cache so multi-arch jobs always have BPF objects available regardless of which build blocks run. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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BPF bytecode targets the BPF virtual machine, not the host CPU, making compiled .o files architecture-independent across amd64, arm64, and ppc64le. This change builds BPF objects once on amd64 and caches them via Semaphore cache for reuse by multi-arch and push-images builds.
The PRE_BUILT_BPF_OBJECTS Makefile flag skips BPF .o compilation while still building the architecture-specific libbpf (needed for CGO linking). Both Felix and Node Build jobs store the cache so multi-arch jobs always have BPF objects available regardless of which build blocks run.
Release note: