90 lines
1.7 KiB
Markdown
90 lines
1.7 KiB
Markdown
# PR-5.5 — Remove Legacy Syscall Entry Paths
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### Briefing
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Any old or experimental syscall entry paths must be removed so that the slot-based ABI is the only supported mechanism.
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### Target
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* Ensure only the new unified syscall dispatch path exists.
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### Work items
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* Search for legacy or alternate syscall invocation logic.
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* Remove or refactor them to use the canonical dispatch.
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* Update modules and exports accordingly.
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### Acceptance checklist
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* [ ] Only one syscall dispatch path remains.
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* [ ] No legacy syscall logic is present.
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* [ ] `cargo test` passes.
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### Tests
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* Existing tests only.
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### Junie instructions
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**You MAY:**
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* Remove legacy syscall code paths.
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* Refactor callers to use the unified dispatch.
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**You MUST NOT:**
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* Introduce new syscall semantics.
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* Keep compatibility shims.
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**If unclear:**
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* Ask before deleting anything that looks externally visible.
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---
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# PR-5.6 — Syscall Multi-Return Tests
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### Briefing
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We must ensure multi-return syscalls behave correctly with the slot-based ABI.
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### Target
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* Add deterministic tests covering multi-return behavior.
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### Work items
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* Create or adapt at least one syscall with `ret_slots > 1`.
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* Add tests:
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* Verify correct stack results after syscall.
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* Verify incorrect caller expectations fail verification.
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### Acceptance checklist
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* [ ] Multi-return syscalls behave correctly.
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* [ ] Verifier catches mismatches.
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* [ ] `cargo test` passes.
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### Tests
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* New multi-return syscall tests.
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### Junie instructions
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**You MAY:**
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* Add deterministic tests.
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* Use existing syscalls or create a simple test-only syscall.
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**You MUST NOT:**
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* Modify syscall semantics to satisfy tests.
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* Add nondeterministic behavior.
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**If unclear:**
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* Ask before introducing new test syscalls.
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