Add definitions for riscv64gc-unknown-fuchsia

[ComputerDruid]

To compile, also requires a libc update with rust-lang/libc#3204

[rustbot]

r? @cuviper

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[rustbot]

Hey! It looks like you've submitted a new PR for the library teams!

If this PR contains changes to any rust-lang/rust public library APIs then please comment with @rustbot label +T-libs-api -T-libs to tag it appropriately. If this PR contains changes to any unstable APIs please edit the PR description to add a link to the relevant API Change Proposal or create one if you haven't already. If you're unsure where your change falls no worries, just leave it as is and the reviewer will take a look and make a decision to forward on if necessary.

Examples of T-libs-api changes:

• Stabilizing library features
• Introducing insta-stable changes such as new implementations of existing stable traits on existing stable types
• Introducing new or changing existing unstable library APIs (excluding permanently unstable features / features without a tracking issue)
• Changing public documentation in ways that create new stability guarantees
• Changing observable runtime behavior of library APIs

[cuviper]

@rustbot author
(until libc is ready)

[rustbot]

These commits modify the Cargo.lock file. Random changes to Cargo.lock can be introduced when switching branches and rebasing PRs.
This was probably unintentional and should be reverted before this PR is merged.

If this was intentional then you can ignore this comment.

[ComputerDruid]

Bumped libc to v0.2.142 which contains rust-lang/libc#3204 . The Cargo.lock change is therefore intentional.

So this is ready for review.

@rustbot ready

[tmandry]

Seems fine to re-export the raw types from libc since that's what linux does for riscv64.

@bors r+ rollup=iffy because of libc bump

[bors]

📌 Commit e7ed5ba has been approved by tmandry

It is now in the queue for this repository.

[bors]

⌛ Testing commit e7ed5ba with merge e3ccd4b...

[bors]

☀️ Test successful - checks-actions
Approved by: tmandry
Pushing e3ccd4b to master...

[rust-timer]

Finished benchmarking commit (e3ccd4b): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-0.8%	[-0.8%, -0.8%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-0.8%	[-0.8%, -0.8%]	1

Cycles

This benchmark run did not return any relevant results for this metric.