Enable debug tools on Golang for arm platform (MSan & TSan)
summary
Ports MemorySanitizer and ThreadSanitizer into Go on arm64 by adding required compiler-rt-compatible memory layout, shadow-memory mapping and small assembly/runtime APIs, plus cgo interception so uninitialized C buffers aren’t misreported. Implements exact and approximate shadow propagation for arithmetic, supports the sanitizer hooks in the Go runtime, and lands upstream. Reported runtime cost is about 20% overhead for MSan and 15% overhead for TSan; the tools detect UUMs and races in real Go+C workloads.
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chapters (7)
- 0:00Introduction to project
- 1:04Memory sanitizer overview
- 5:50MSan implementation in Go
- 12:04Thread sanitizer overview
- 15:32TSan implementation details
- 18:54Demo and usage
- 21:41Summary and Q&A
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