Add aarch64_be CI run

Author: sayantn

.github/workflows/main.yml

@@ -56,6 +56,8 @@ jobs:
           os: ubuntu-latest
         - tuple: aarch64-unknown-linux-gnu
           os: ubuntu-latest
+        - tuple: aarch64_be-unknown-linux-gnu
+          os: ubuntu-latest
         - tuple: riscv64gc-unknown-linux-gnu
           os: ubuntu-latest
         - tuple: powerpc-unknown-linux-gnu
@@ -129,6 +131,11 @@ jobs:
             tuple: armv7-unknown-linux-gnueabihf
             os: ubuntu-latest
           test_everything: true
+        - target:
+            tuple: aarch64_be-unknown-linux-gnu
+            os: ubuntu-latest
+          test_everything: true
+          build_std: true
         - target:
             tuple: loongarch64-unknown-linux-gnu
             os: ubuntu-latest
@@ -193,13 +200,18 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-      with:
-        submodules: recursive
+
     - name: Install Rust
       run: |
         rustup update nightly --no-self-update
         rustup default nightly
     - run: rustup target add ${{ matrix.target.tuple }}
+      if: matrix.build_std == ''
+    - run: |
+        rustup component add rust-src
+        echo "CARGO_UNSTABLE_BUILD_STD=std" >> $GITHUB_ENV
+      if: matrix.build_std != ''
+
     - run: cargo generate-lockfile
 
     # Configure some env vars based on matrix configuration
@@ -228,7 +240,7 @@ jobs:
     # ... while Linux goes to `run-docker.sh`
     - run: ./ci/run-docker.sh ${{ matrix.target.tuple }}
       shell: bash
-      if: "matrix.target.os == 'ubuntu-latest' && !startsWith(matrix.target.tuple, 'thumb')"
+      if: matrix.target.os == 'ubuntu-latest' && !startsWith(matrix.target.tuple, 'thumb')
       env:
         TARGET: ${{ matrix.target.tuple }}
 

ci/docker/aarch64_be-unknown-linux-gnu/Dockerfile

@@ -26,5 +26,5 @@ ENV AARCH64_BE_LIBC="${AARCH64_BE_TOOLCHAIN}/aarch64_be-none-linux-gnu/libc"
 
 ENV CARGO_TARGET_AARCH64_BE_UNKNOWN_LINUX_GNU_LINKER="${AARCH64_BE_TOOLCHAIN}/bin/aarch64_be-none-linux-gnu-gcc"
 ENV CARGO_TARGET_AARCH64_BE_UNKNOWN_LINUX_GNU_RUNNER="qemu-aarch64_be -cpu max -L ${AARCH64_BE_LIBC}"
-ENV OBJDUMP="${AARCH64_BE_TOOLCHAIN}/bin/bin/aarch64-none-linux-gnu-objdump"
+ENV OBJDUMP="${AARCH64_BE_TOOLCHAIN}/bin/aarch64_be-none-linux-gnu-objdump"
 ENV STDARCH_TEST_SKIP_FEATURE=tme

ci/run-docker.sh

@@ -27,6 +27,7 @@ run() {
       --env NOSTD \
       --env NORUN \
       --env RUSTFLAGS \
+      --env CARGO_UNSTABLE_BUILD_STD \
       --volume "${HOME}/.cargo":/cargo \
       --volume "$(rustc --print sysroot)":/rust:ro \
       --volume "$(pwd)":/checkout:ro \

crates/simd-test-macro/src/lib.rs

@@ -58,7 +58,7 @@ pub fn simd_test(
     {
         "i686" | "x86_64" | "i586" => "is_x86_feature_detected",
         "arm" | "armv7" => "is_arm_feature_detected",
-        "aarch64" | "arm64ec" => "is_aarch64_feature_detected",
+        "aarch64" | "arm64ec" | "aarch64_be" => "is_aarch64_feature_detected",
         maybe_riscv if maybe_riscv.starts_with("riscv") => "is_riscv_feature_detected",
         "powerpc" | "powerpcle" => "is_powerpc_feature_detected",
         "powerpc64" | "powerpc64le" => "is_powerpc64_feature_detected",