microsoft / microsoft/litebox

Guest Linux `vDSO` support in `FreeBSDUserland`

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enhancement target-freebsd
Dominant language
Rust
Stars
2.7k
Forks
144
Avg merge
12h 21m
Merged PRs (30d)
146

Description

To execute native Linux ELF guest binaries, the host platform has to emulate Linux's vDSO syscall family.

In this PR, I added `vDSO` support on WindowsUserland:
https://github.com/microsoft/litebox/pull/272#issue-3339110733

Similar implementation has to be added to FreeBSD.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the WindowsUserland vDSO implementation in pull request #272, then locate the corresponding FreeBSDUserland guest-binary support. Confirm the implementation handles the Linux vDSO syscall family needed by native Linux ELF guests and verify that those binaries execute successfully on FreeBSD.

Written by the indexing model from the issue text.

Assessment

Tech stack
linux, rust
Domain
operating-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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