Add loongarch64-unknown-linux-musl build target (#16020)

.github/workflows/nightly-build.yml

@@ -127,6 +127,7 @@ jobs:
         - armv7-unknown-linux-musleabihf
         - riscv64gc-unknown-linux-gnu
         - loongarch64-unknown-linux-gnu
+        - loongarch64-unknown-linux-musl
         include:
         - target: aarch64-apple-darwin
           os: macos-latest
@@ -152,6 +153,8 @@ jobs:
           os: ubuntu-22.04
         - target: loongarch64-unknown-linux-gnu
           os: ubuntu-22.04
+        - target: loongarch64-unknown-linux-musl
+          os: ubuntu-22.04
 
     runs-on: ${{matrix.os}}
     steps:
@@ -179,6 +182,7 @@ jobs:
       uses: actions-rust-lang/setup-rust-toolchain@v1
       # WARN: Keep the rustflags to prevent from the winget submission error: `CAQuietExec: Error 0xc0000135`
       with:
+        cache: false
         rustflags: ''
 
     - name: Setup Nushell

.github/workflows/release-pkg.nu

@@ -99,6 +99,14 @@ if $os in ['macos-latest'] or $USE_UBUNTU {
             $env.CARGO_TARGET_LOONGARCH64_UNKNOWN_LINUX_GNU_LINKER = 'loongarch64-unknown-linux-gnu-gcc'
             cargo-build-nu
         }
+        'loongarch64-unknown-linux-musl' => {
+            print $"(ansi g)Downloading LoongArch64 musl cross-compilation toolchain...(ansi reset)"
+            aria2c -q https://github.com/LoongsonLab/oscomp-toolchains-for-oskernel/releases/download/loongarch64-linux-musl-cross-gcc-13.2.0/loongarch64-linux-musl-cross.tgz
+            tar -xf loongarch64-linux-musl-cross.tgz
+            $env.PATH = ($env.PATH | split row (char esep) | prepend $'($env.PWD)/loongarch64-linux-musl-cross/bin')
+            $env.CARGO_TARGET_LOONGARCH64_UNKNOWN_LINUX_MUSL_LINKER = "loongarch64-linux-musl-gcc"
+            cargo-build-nu
+        }
         _ => {
             # musl-tools to fix 'Failed to find tool. Is `musl-gcc` installed?'
             # Actually just for x86_64-unknown-linux-musl target

.github/workflows/release.yml

@@ -35,6 +35,7 @@ jobs:
         - armv7-unknown-linux-musleabihf
         - riscv64gc-unknown-linux-gnu
         - loongarch64-unknown-linux-gnu
+        - loongarch64-unknown-linux-musl
         include:
         - target: aarch64-apple-darwin
           os: macos-latest
@@ -60,6 +61,8 @@ jobs:
           os: ubuntu-22.04
         - target: loongarch64-unknown-linux-gnu
           os: ubuntu-22.04
+        - target: loongarch64-unknown-linux-musl
+          os: ubuntu-22.04
 
     runs-on: ${{matrix.os}}