lowRISC / lowRISC/sonata-system
CHERI sanity test has an illegal instruction
Open
Nobody has claimed this yet.
- Dominant language
- C++
- Stars
- 54
- Forks
- 37
- PR merge metrics
- No merged PRs in 30d
Description
I commented out storing to and loading capability from the stack because it was causing an illegal instruction:
https://github.com/lowRISC/sonata-system/blob/6914b30a2769f881a53afb912032cd65a6d14307/sw/cheri/checks/cheri_sanity.cc#L24
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start in sw/cheri/checks/cheri_sanity.cc around line 24, where capability stack storing and loading were commented out. Run the CHERI sanity test and investigate the illegal instruction; done means those stack operations can execute without the fault and the sanity test passes.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- embedded-iot, security
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100