Support illumos target

Related to taiki-e#2

.github/workflows/ci.yml

@@ -163,6 +163,12 @@ jobs:
           - target: x86_64-unknown-netbsd
           - target: x86_64-unknown-netbsd@9
 
+          # Illumos
+          # rustup target list | grep -e '-illumos'
+          # rustc --print target-list | grep -e '-illumos'
+          # - target: aarch64-unknown-illumos # tier3 (not yet supported)
+          - target: x86_64-unknown-illumos
+
           # WASI
           # rustup target list | grep -e '-wasi'
           # rustc --print target-list | grep -e '-wasi'
@@ -287,6 +293,7 @@ jobs:
           - aarch64-linux-android
           - x86_64-unknown-freebsd
           - x86_64-unknown-netbsd
+          - x86_64-unknown-illumos
           - wasm32-wasip1
           - x86_64-pc-windows-gnu
           - x86_64-pc-windows-gnullvm

README.md

@@ -18,6 +18,7 @@ GitHub Action for setup toolchains for cross compilation and cross testing for R
   - [Android](#android)
   - [FreeBSD](#freebsd)
   - [NetBSD](#netbsd)
+  - [illumos](#illumos)
   - [WASI](#wasi)
   - [Windows (MinGW)](#windows-mingw)
   - [Windows (LLVM MinGW)](#windows-llvm-mingw)
@@ -376,6 +377,18 @@ You can select/pin the OS version by using `@` syntax in `target` option. For ex
 
 Only specifying a major version is supported.
 
+### illumos
+
+| libc | GCC | clang | C++ | test |
+| ---- | --- | ----- | --- | ---- |
+| solaris 2.10 | 8.5.0 | host | ✓ (libstdc++) | |
+
+**Supported targets:**
+
+| target | host | note |
+| ------ | ---- | ---- |
+| `x86_64-unknown-illumos` | x86_64 Linux (any libc) | |
+
 ### WASI
 
 | libc | Clang | C++ | test |

main.sh

@@ -498,7 +498,7 @@ EOF
                 install_rust_cross_toolchain
                 install_llvm
                 ;;
-            *-netbsd*)
+            *-netbsd* | *-illumos*)
                 install_rust_cross_toolchain
                 ;;
             *-wasi*)
@@ -654,8 +654,8 @@ EOF
                 *) bail "unrecognized runner '${runner}'" ;;
             esac
             ;;
-        *-freebsd* | *-netbsd*)
-            # Runners for BSDs are not supported yet.
+        *-freebsd* | *-netbsd* | *-illumos*)
+            # Runners for BSDs and illumos are not supported yet.
             # We are currently testing the uploaded artifacts manually with Cirrus CI and local VM.
             # https://cirrus-ci.org/guide/FreeBSD
             case "${runner}" in

tools/ci/test.sh

@@ -29,7 +29,7 @@ esac
 skip_run() {
     case "${target}" in
         # x86_64h-apple-darwin is also x86_64 but build-only due to the CPU of GitHub-provided macOS runners is older than haswell.
-        *-freebsd* | *-netbsd* | x86_64h-apple-darwin | aarch64*-windows-msvc) return 0 ;;
+        *-freebsd* | *-netbsd* | *-illumos* | x86_64h-apple-darwin | aarch64*-windows-msvc) return 0 ;;
         aarch64*-darwin* | arm64*-darwin*)
             case "$(uname -m)" in
                 aarch64 | arm64) ;;