fix(checklocks): enhance diagnostics and deduplication in failure reporting #11751
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This change aims to improve the clarity and accuracy of failure reporting in the analysis tool, reducing noise in diagnostics.
Previous output:
```text
-: return with unexpected locks held (locks: &({param:s}.mu) exclusively)
-: return with unexpected locks held (locks: &(*(&({*ssa.Call:0x14003d9fe80}.trace)).mu) exclusively)
-: return with unexpected locks held (locks: &(*(&({*ssa.Call:0x14003db0a00}.trace)).mu) exclusively)
-: return with unexpected locks held (locks: &(*(&({*ssa.Call:0x14003db1600}[0].trace)).mu) exclusively)
```
Current output:
```text
# gvisor.dev/gvisor/tools/checklocks/test
test/basics.go:130:6: return with unexpected locks held (locks: &({param:tc}.mu) exclusively)
test/methods.go:95:6: lock a.mu (&({param:a}.mu)) not held exclusively (locks: no locks held)
````
- Introduced a mechanism to track the current function during checks for improved diagnostics when SSA positions are missing.
- Enhanced the `maybeFail` function to build a message string for deduplication, ensuring identical diagnostics are not reported multiple times for the same position key.
- Updated the `passContext` struct to include a new `reported` map for tracking reported messages.
Signed-off-by: Kemal Akkoyun <[email protected]>
FUTURE_COPYBARA_INTEGRATE_REVIEW=#11741 from kakkoyun:existing_issues 3f8b63f
PiperOrigin-RevId: 761287214
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fix(checklocks): enhance diagnostics and deduplication in failure reporting
This change aims to improve the clarity and accuracy of failure reporting in the analysis tool, reducing noise in diagnostics.
Previous output:
Current output:
maybeFailfunction to build a message string for deduplication, ensuring identical diagnostics are not reported multiple times for the same position key.passContextstruct to include a newreportedmap for tracking reported messages.Signed-off-by: Kemal Akkoyun [email protected]
FUTURE_COPYBARA_INTEGRATE_REVIEW=#11741 from kakkoyun:existing_issues 3f8b63f