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+Generate coverage on Mac
+
+call Tools/Script/generate-coverage-data
+
+or by hand
+
+
+# delete
+find . -name '*.gcda' -delete
+
+# build, -framework CoreFoundation might suffice as well
+Tools/Scripts/build-webkit GCC_GENERATE_TEST_COVERAGE_FILES=YES GCC_INSTRUMENT_PROGRAM_FLOW_ARCS=YES EXTRA_LINK=" -ftest-coverage -fprofile-arcs" OTHER_CFLAGS=" -MD " OTHER_LDFLAGS=" -ftest-coverage -fprofile-arcs -framework AppKit"
+Tools/Scripts/run-webkit-tests
+Tools/Scripts/run-javascriptcore-tests GCC_GENERATE_TEST_COVERAGE_FILES=YES GCC_INSTRUMENT_PROGRAM_FLOW_ARCS=YES EXTRA_LINK=" -ftest-coverage -fprofile-arcs" OTHER_CFLAGS=" -MD " OTHER_LDFLAGS=" -ftest-coverage -fprofile-arcs -framework AppKit"
+
+
+# Collect files
+Tools/CodeCoverage/run-generate-coverage-data <RUN_ID> ../coverage-results/
+
+
+# Generate graph
+Tools/CodeCoverage/regenerate-coverage-display ../coverage-results/ ../coverage-results/html