Fix coverage job GCC/gcov version mismatch

Co-authored-by: 0xrinegade <[email protected]>

Author: Copilot

.github/workflows/cpp_sdk.yml

@@ -37,6 +37,19 @@ jobs:
       if: matrix.os == 'ubuntu-latest'
       run: sudo apt-get update && sudo apt-get install -y libsodium-dev lcov
 
+    - name: Install GCC-8 for code coverage
+      if: matrix.os == 'ubuntu-latest' && matrix.compiler == 'gcc'
+      run: sudo apt-get install -y gcc-8 g++-8
+
+    - name: Set GCC-8 as default for code coverage
+      if: matrix.os == 'ubuntu-latest' && matrix.compiler == 'gcc'
+      run: |
+        sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 80
+        sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 80
+        echo "CC=gcc-8" >> $GITHUB_ENV
+        echo "CXX=g++-8" >> $GITHUB_ENV
+        echo "GCOV=gcov-8" >> $GITHUB_ENV
+    
     - name: Install dependencies (Ubuntu)
       if: matrix.os == 'ubuntu-latest'
       run: |
@@ -133,7 +146,7 @@ jobs:
         ctest --verbose --output-on-failure
     
     - name: Generate coverage report (Debug builds only)
-      if: matrix.build-type == 'Debug'
+      if: matrix.build-type == 'Debug' && matrix.os == 'ubuntu-latest' && matrix.compiler == 'gcc'
       run: |
         cd cpp_sdk/build
         ninja coverage

cpp_sdk/CMakeLists.txt

@@ -138,13 +138,22 @@ add_custom_target(test-integration
     COMMENT "Running integration tests"
 )
 
+# Check for specific gcov version for coverage
+find_program(GCOV_8_EXECUTABLE gcov-8)
+if(GCOV_8_EXECUTABLE)
+    set(GCOV_TOOL ${GCOV_8_EXECUTABLE})
+else()
+    find_program(GCOV_EXECUTABLE gcov)
+    set(GCOV_TOOL ${GCOV_EXECUTABLE})
+endif()
+
 add_custom_target(coverage
     # Clean any existing coverage data
     COMMAND ${CMAKE_COMMAND} -E remove -f coverage.info coverage_filtered.info
     # Run tests to generate .gcda files (no need to zero counters since we clean .gcda)
     COMMAND tests/aireg++_tests
     # Capture coverage data from all .gcno/.gcda files with error handling
-    COMMAND lcov --capture --directory . --output-file coverage.info --ignore-errors mismatch,gcov,source --rc geninfo_unexecuted_blocks=1
+    COMMAND lcov --gcov-tool ${GCOV_TOOL} --capture --directory . --output-file coverage.info --ignore-errors mismatch,gcov,source --rc geninfo_unexecuted_blocks=1
     # Filter out system headers and test files
     COMMAND lcov --remove coverage.info '/usr/*' '*/tests/*' '*/examples/*' '*/googletest/*' --output-file coverage_filtered.info --ignore-errors mismatch,source,unused
     # Create output directory