Add coverage workflow

Author: RSingh1511

.bazelrc

@@ -76,14 +76,16 @@ build:x86_64-linux --extra_toolchains=@score_toolchains_rust//toolchains/ferroce
 # With this instrumentation filter for our two main components, we ensure that `bazel coverage //...` is yielding the correct results
 coverage --config=x86_64-linux
 coverage --instrumentation_filter="^//score/datarouter[/:],^//score/mw/log[/:],-//score/mw/.*/test[/:]"
-coverage --experimental_generate_llvm_lcov
-coverage --experimental_use_llvm_covmap
+# Note: LLVM-specific flags - only use with LLVM/Clang toolchain
+# coverage --experimental_generate_llvm_lcov
+# coverage --experimental_use_llvm_covmap
+# coverage --test_env=LLVM_PROFILE_CONTINUOUS_MODE=1
+# coverage --cxxopt -mllvm
+# coverage --cxxopt -runtime-counter-relocation
+
+# GCC-based coverage configuration
 coverage --combined_report=lcov
 coverage --coverage_report_generator=@bazel_tools//tools/test/CoverageOutputGenerator/java/com/google/devtools/coverageoutputgenerator:Main
 coverage --test_env=COVERAGE_GCOV_OPTIONS=-bcu
-# TODO set toolchain feature once possible
-# These compile time options are required to cover abnormal termination cases. In GCC one can use `__gcc_dump()`, but this does not work with LLVM
-# LLVM provided these compile-time options in combination with a specific profile setting which is enabled in bazel via `LLVM_PROFILE_CONTINUOUS_MODE`
-coverage --test_env=LLVM_PROFILE_CONTINUOUS_MODE=1
-coverage --cxxopt -mllvm
-coverage --cxxopt -runtime-counter-relocation
+coverage --features=coverage
+coverage --cache_test_results=no

.github/workflows/coverage_report.yml

@@ -0,0 +1,29 @@
+# *******************************************************************************
+# Copyright (c) 2026 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+name: Code Coverage
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+  push:
+    branches:
+      - main
+  merge_group:
+    types: [checks_requested]
+
+jobs:
+  coverage-report:
+    uses: eclipse-score/cicd-workflows/.github/workflows/cpp-coverage.yml@main
+    with:
+      bazel-target: "//..."