~/talk

Improving UAPI Compatibility Review with Automated Tooling

on YouTube 40m
Talkat Linux Plumbers Conference 2023 · 2023-11-13..11-15· [linux-and-operating-systems, developer-experience]

speaker

name:John Moon
links:none on file

resources

video:https://youtu.be/4ijcLgvmcek
slides:none on file

summary

Describes adding libabigail-based automation and a shell wrapper check_uapi.sh that compiles headers, runs ABI-diff on binary artifacts, and flags incompatible changes (it checks ~912 headers, needs cross-compilers and reports 37 breakages between 6.1 and 6.0). Shows CI use at Qualcomm, a smaller check for module parameters, and that sysfs/procfs lack comparable tooling yet. Practical demo of suppressions, ambiguous vs definite breaks, and integration trade-offs for reviewers.

AI-written summary · about

chapters (6)

  1. 0:00Introduction
  2. 1:48Current UAPI review process
  3. 2:32Introducing checkuapi.sh
  4. 12:30Cross-arch and CI integration
  5. 26:42CFS and procfs compatibility gap
  6. 39:54Future directions and Q&A

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