Tracking Issue for `loongarch64-unknown-linux-musl` target

[heiher]

This is a tracking issue for the loongarch64-unknown-linux-musl target part of MCP (rust-lang/compiler-team#518) and (rust-lang/compiler-team#753).

About tracking issues

Tracking issues are used to record the overall progress of implementation.
They are also used as hubs connecting to other relevant issues, e.g., bugs or open design questions.
A tracking issue is however not meant for large scale discussion, questions, or bug reports about a feature.
Instead, open a dedicated issue for the specific matter and add the relevant feature gate label.

Steps

• Added as a new Tier 3 target.
• Promoted to Tier 2.

Implementation history

• Add new Tier-3 target: loongarch64-unknown-linux-musl #121832
• doc/rustc: Move loongarch64-unknown-linux-musl to Tier 3 #122269
• configure.py: add flag for loongarch64 musl-root #122323
• linux/musl: Add support for LoongArch64 libc#3605
• [0.2] linux/musl: Add support for LoongArch64 libc#3606
• Add compiler-rt fallbacks on loongarch64-musl compiler-builtins#579
• [111] Add support for loongarch64-unknown-linux-musl target alexcrichton/openssl-src-rs#233
• [300] Add support for loongarch64-unknown-linux-musl target alexcrichton/openssl-src-rs#234
• Bump to 111.28.2+1.1.1w alexcrichton/openssl-src-rs#241
• Update openssl-src to 111.28.2+1.1.1w cargo#13976
• Promote loongarch64-unknown-linux-musl to Tier 2 with host tools #126298