Kbuild support for klprelocation generation
summary
Kernel build adds a small utility that rewrites livepatch ELF relocations into the loader’s required format and currently implements only the annotation path: it generates klp relocation sections with klp-convert macros, emits reloc entries that include object name and symbol index, and runs after modpost so unresolved symbols are tolerated. A minimal prototype exists and works in tests, but upstream questions remain about Kbuild integration, the klp-version automatic resolver, and whether modpost changes are acceptable.
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chapters (9)
- 0:00Introduction
- 1:50KP relocation basics
- 6:54KP convert tool history
- 10:31Self-testing KP relocations
- 17:14Live patching performance impact
- 21:07KP convert in Kbuild
- 23:57Minimal KP convert changes
- 25:02Late module patching limits
- 27:35Compiler and obj tool issues
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