Investigate using Ward on RTS
While debugging a locking issue a few weeks ago I found myself pining for static analysis tooling. Today I briefly looked at the options and one stood out: Ward. It sits in a very nice point in the design space, allowing the user to define a universe of privileges and annotate functions using standard C attributes.
I think this would be a very helpful tool for describing and checking GHC's locking (and perhaps other) behavior.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.4.3 |
| Type | Task |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
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| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |
Edited by Ben Gamari