Proposal

Adding a new target -- wasm32-linux-musl -- to the compiler can target the WebAssembly Linux Interface.
Preliminary support is already implemented for this in the fork here, and involves minimal changes, primarily

1. A new target spec for wasm32_linux_musl that bridges linux options with supported wasm options
2. Patches to stdarch, cc, and libc
3. Minimal FFI support for the target

Mentors or Reviewers

@alexcrichton pointed me to this and might be helpful in reviewing this effort

Process

The main points of the Major Change Process are as follows:

• File an issue describing the proposal.
• A compiler team member or contributor who is knowledgeable in the area can second by writing @rustbot second.
  • Finding a "second" suffices for internal changes. If however, you are proposing a new public-facing feature, such as a -C flag, then full team check-off is required.
  • Compiler team members can initiate a check-off via @rfcbot fcp merge on either the MCP or the PR.
• Once an MCP is seconded, the Final Comment Period begins. If no objections are raised after 10 days, the MCP is considered approved.

You can read more about Major Change Proposals on forge.

Comments

This issue is not meant to be used for technical discussion. There is a Zulip stream for that. Use this issue to leave procedural comments, such as volunteering to review, indicating that you second the proposal (or third, etc), or raising a concern that you would like to be addressed.