ci: test

Author: dkm

.github/actions/build-gcc/action.yml

@@ -0,0 +1,92 @@
+name: 'Build GCC'
+description: 'Builds GCC with Rust enabled'
+inputs:
+  extra-configure-env:
+    description: 'Extra env for configure'
+    required: false
+    default: ''
+
+  run_test_flags:
+    description: 'Args for RUN_TEST_FLAGS'
+    required: true
+
+  warning_file:
+    description: 'Filename with expected warnings'
+    required: true
+
+# outputs:
+#   random-number:
+#     description: "Random number"
+#     value: ${{ steps.random-number-generator.outputs.random-number }}
+runs:
+  using: "composite"
+  steps:
+    - name: Install dependencies
+      run: |
+          sudo apt-get update;
+          sudo apt-get install -y \
+                  automake \
+                  autoconf \
+                  libtool \
+                  autogen \
+                  bison \
+                  flex \
+                  libgmp3-dev \
+                  libmpfr-dev \
+                  libmpc-dev \
+                  build-essential \
+                  gcc-multilib \
+                  g++-multilib \
+                  dejagnu;
+          # install Rust directly using rustup
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain=1.72.0;
+      shell: bash
+
+    - name: Make Source Read-Only
+      run: chmod -R a-w ./*
+
+    - name: Configure GCC
+      run: |
+           mkdir -p gccrs-build;
+           cd gccrs-build;
+           ${{ inputs.extra-configure-env }}
+           ../configure \
+               --enable-languages=rust \
+               --disable-bootstrap \
+               --enable-multilib
+
+    - name: Build GCC
+      shell: bash
+      run: |
+           cd gccrs-build; \
+           # Add cargo to our path quickly
+           . "$HOME/.cargo/env";
+           make -Otarget -j $(nproc) 2>&1 | tee log
+
+    - name: Check for new warnings
+      run: |
+           cd gccrs-build
+           < log grep 'warning: ' | grep rust | sort > log_warnings
+           if diff -U0 ../.github/${{ inputs.warning_file }} log_warnings; then
+               :
+           else
+               echo 'See <https://github.com/Rust-GCC/gccrs/pull/1026>.'
+               exit 1
+           fi >&2
+
+    - name: Run Tests
+      run: |
+           cd gccrs-build; \
+           make check-rust RUNTESTFLAGS="${{ inputs.run_test_flags }}"
+
+    - name: Check regressions
+      run: |
+           cd gccrs-build; \
+           if grep -e "unexpected" -e "unresolved" -e "ERROR:" gcc/testsuite/rust/rust.sum;\
+           then \
+              echo "::error title=Regression test failed::some tests are not correct"; \
+              perl -n ../.github/emit_test_errors.pl < gcc/testsuite/rust/rust.sum; \
+              exit 1; \
+            else \
+              exit 0; \
+            fi