feat: add native FreeBSD/powerpc64le binding

[pkubaj]

Register the freebsd-ppc64 binding (powerpc64le-unknown-freebsd) so
Rollup runs natively on FreeBSD/powerpc64le instead of failing over to
the WASM build. The fallback is not usable here because a
rollup.config.js that imports from "rollup" loads native.js, which
currently throws for this platform/arch.

Currently no CI due to that platform being Tier 3 in Rust.
Tested on FreeBSD 15.1-BETA1 with Rust 1.95.0.

This PR contains:

• bugfix
• feature
• refactor
• documentation
• other

Are tests included?

• yes (bugfixes and features will not be merged without tests)
• no - requires a native builder, but it will likely work if other freebsd targets and other ppc64 targets work

Breaking Changes?

• yes (breaking changes will not be merged unless absolutely necessary)
• no

List any relevant issue numbers:

Description

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Project	Deployment	Actions	Updated (UTC)
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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.78%. Comparing base (f2f58c4) to head (1158dfb).
⚠️ Report is 24 commits behind head on master.

⚠️ Current head 1158dfb differs from pull request most recent head dc61806

Please upload reports for the commit dc61806 to get more accurate results.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6398   +/-   ##
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  Coverage   98.78%   98.78%           
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  Files         274      274           
  Lines       10789    10795    +6     
  Branches     2882     2883    +1     
=======================================
+ Hits        10658    10664    +6     
  Misses         89       89           
  Partials       42       42           

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[lukastaegert]

Thanks for taking the initiative. However without CI changes, no artifact will be built, making this not so useful.

[lukastaegert]

If it helps, we could move to a newer nightly build, provided it supports all necessary platforms and features.

[pkubaj]

OK, I need some explanation. There is freebsd-arm64 support upstreamed here to rollup and artifacts are available, even though aarch64-freebsd is Tier 3 in Rust, so there's no prebuilt binaries. Why is that? What are the next steps for me to push? Should it be getting powerpc64le-freebsd to Tier 2 in Rust or something else?

[lukastaegert]

To be honest I do not really care about tiers. If you manage to set up a running build pipeline in CI for that target, then we can ship that. That is the part you did not do. For that, you need to extend build-and-tests.yml, like in this commit 72b0f0e

[pkubaj]

CI added.

[Copilot]

Pull request overview

This PR registers a new native N-API binding for freebsd on ppc64 (Rust target powerpc64le-unknown-freebsd) so Rollup can load native.js successfully on FreeBSD/powerpc64le instead of falling back to (or failing with) the WASM path.

Changes:

• Add powerpc64le-unknown-freebsd to the N-API build targets in package.json.
• Add a new platform/arch mapping (freebsd + ppc64) in native.js and introduce the corresponding @rollup/rollup-freebsd-ppc64 npm package.
• Extend the GitHub Actions build matrix to cross-build powerpc64le-unknown-freebsd.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
package.json	Registers powerpc64le-unknown-freebsd as a N-API build target.
npm/freebsd-ppc64/README.md	Adds README for the new FreeBSD/ppc64 native package.
npm/freebsd-ppc64/package.json	Defines the new @rollup/rollup-freebsd-ppc64 optional native binding package.
native.js	Adds freebsd + ppc64 mapping so the correct native package is selected at runtime.
.github/workflows/build-and-tests.yml	Adds cross-build job entry for powerpc64le-unknown-freebsd.

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[lukastaegert]

Please check the failing build. Getting things to actually build is usually the hardest part.

[pkubaj]

I've just sent an upstream cross PR for adding powerpc64le-unknown-freebsd: cross-rs/cross#1781