1# if coverage reports are not enabled, skip all of this 2if(NOT LLVM_BUILD_INSTRUMENTED_COVERAGE) 3 return() 4endif() 5 6file(TO_NATIVE_PATH 7 "${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 be 11# explicitly provided by the user, or we will look them up based on the install 12# 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" ${COMPILER_DIRECTORY} NO_DEFAULT_PATH) 16 17if(NOT LLVM_COV OR NOT LLVM_PROFDATA) 18 message(WARNING "Could not find code coverage tools, skipping generating targets. You may explicitly specify LLVM_COV and LLVM_PROFDATA to work around this warning.") 19 return() 20endif() 21 22set(LLVM_CODE_COVERAGE_TARGETS "" CACHE STRING "Targets to run code coverage on (defaults to all exported targets if empty)") 23mark_as_advanced(LLVM_CODE_COVERAGE_TARGETS) 24 25if(NOT LLVM_CODE_COVERAGE_TARGETS) 26 # by default run the coverage report across all the exports provided 27 get_property(COV_TARGETS GLOBAL PROPERTY LLVM_EXPORTS) 28endif() 29 30file(TO_NATIVE_PATH 31 "${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 get 50# working exactly how a user might want. 51add_custom_target(clear-profile-data 52 COMMAND ${CMAKE_COMMAND} -E 53 remove_directory ${LLVM_PROFILE_DATA_DIR}) 54 55# This currently only works for LLVM, but could be expanded to work for all 56# sub-projects. The current limitation is based on not having a good way to 57# automaticall plumb through the targets that we want to run coverage against. 58add_custom_target(generate-coverage-report 59 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 tests 65