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1# if coverage reports are not enabled, skip all of this2if(NOT LLVM_BUILD_INSTRUMENTED_COVERAGE)3 return()4endif()5 6file(TO_NATIVE_PATH7 "${LLVM_SOURCE_DIR}/utils/prepare-code-coverage-artifact.py"8 PREPARE_CODE_COV_ARTIFACT)9 10# llvm-cov and llvm-profdata need to match the host compiler. They can either be11# explicitly provided by the user, or we will look them up based on the install12# location of the C++ compiler.13get_filename_component(COMPILER_DIRECTORY ${CMAKE_CXX_COMPILER} DIRECTORY)14find_program(LLVM_COV "llvm-cov" ${COMPILER_DIRECTORY} NO_DEFAULT_PATH)15find_program(LLVM_PROFDATA "llvm-profdata" ${COMPILER_DIRECTORY} NO_DEFAULT_PATH)16 17if(NOT LLVM_COV OR NOT LLVM_PROFDATA)18 message(WARNING "Could not find code coverage tools, skipping generating targets. You may explicitly specify LLVM_COV and LLVM_PROFDATA to work around this warning.")19 return()20endif()21 22set(LLVM_CODE_COVERAGE_TARGETS "" CACHE STRING "Targets to run code coverage on (defaults to all exported targets if empty)")23mark_as_advanced(LLVM_CODE_COVERAGE_TARGETS)24 25if(NOT LLVM_CODE_COVERAGE_TARGETS)26 # by default run the coverage report across all the exports provided27 get_property(COV_TARGETS GLOBAL PROPERTY LLVM_EXPORTS)28endif()29 30file(TO_NATIVE_PATH31 "${CMAKE_BINARY_DIR}/report/"32 REPORT_DIR)33 34foreach(target ${LLVM_CODE_COVERAGE_TARGETS} ${COV_TARGETS})35 get_target_property(target_type ${target} TYPE)36 if("${target_type}" STREQUAL "SHARED_LIBRARY" OR "${target_type}" STREQUAL "EXECUTABLE")37 list(APPEND coverage_binaries $<TARGET_FILE:${target}>)38 endif()39endforeach()40 41set(LLVM_COVERAGE_SOURCE_DIRS "" CACHE STRING "Source directories to restrict coverage reports to.")42mark_as_advanced(LLVM_COVERAGE_SOURCE_DIRS)43 44foreach(dir ${LLVM_COVERAGE_SOURCE_DIRS})45 list(APPEND restrict_flags -restrict ${dir})46endforeach()47 48# Utility target to clear out profile data.49# This isn't connected to any dependencies because it is a bit finicky to get50# working exactly how a user might want.51add_custom_target(clear-profile-data52 COMMAND ${CMAKE_COMMAND} -E53 remove_directory ${LLVM_PROFILE_DATA_DIR})54 55# This currently only works for LLVM, but could be expanded to work for all56# sub-projects. The current limitation is based on not having a good way to57# automaticall plumb through the targets that we want to run coverage against.58add_custom_target(generate-coverage-report59 COMMAND ${Python3_EXECUTABLE} ${PREPARE_CODE_COV_ARTIFACT}60 ${LLVM_PROFDATA} ${LLVM_COV} ${LLVM_PROFILE_DATA_DIR}61 ${REPORT_DIR} ${coverage_binaries}62 --unified-report ${restrict_flags}63 WORKING_DIRECTORY ${CMAKE_BINARY_DIR}64 DEPENDS check-llvm) # Run tests65