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| -rw-r--r-- | CMAKE/FindGcov.cmake | 157 | ||||
| -rw-r--r-- | CMAKE/Findcodecov.cmake | 256 |
2 files changed, 413 insertions, 0 deletions
diff --git a/CMAKE/FindGcov.cmake b/CMAKE/FindGcov.cmake new file mode 100644 index 00000000..715da6ed --- /dev/null +++ b/CMAKE/FindGcov.cmake @@ -0,0 +1,157 @@ +# This file is part of CMake-codecov. +# +# Copyright (c) +# 2015-2016 RWTH Aachen University, Federal Republic of Germany +# +# See the LICENSE file in the package base directory for details +# +# Written by Alexander Haase, alexander.haase@rwth-aachen.de +# + + +# include required Modules +include(FindPackageHandleStandardArgs) + + +# Search for gcov binary. +set(CMAKE_REQUIRED_QUIET_SAVE ${CMAKE_REQUIRED_QUIET}) +set(CMAKE_REQUIRED_QUIET ${codecov_FIND_QUIETLY}) + +get_property(ENABLED_LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES) +foreach (LANG ${ENABLED_LANGUAGES}) + # Gcov evaluation is dependend on the used compiler. Check gcov support for + # each compiler that is used. If gcov binary was already found for this + # compiler, do not try to find it again. + if (NOT GCOV_${CMAKE_${LANG}_COMPILER_ID}_BIN) + get_filename_component(COMPILER_PATH "${CMAKE_${LANG}_COMPILER}" PATH) + + if ("${CMAKE_${LANG}_COMPILER_ID}" STREQUAL "GNU") + # Some distributions like OSX (homebrew) ship gcov with the compiler + # version appended as gcov-x. To find this binary we'll build the + # suggested binary name with the compiler version. + string(REGEX MATCH "^[0-9]+" GCC_VERSION + "${CMAKE_${LANG}_COMPILER_VERSION}") + + find_program(GCOV_BIN NAMES gcov-${GCC_VERSION} gcov + HINTS ${COMPILER_PATH}) + + elseif ("${CMAKE_${LANG}_COMPILER_ID}" STREQUAL "Clang") + # Some distributions like Debian ship llvm-cov with the compiler + # version appended as llvm-cov-x.y. To find this binary we'll build + # the suggested binary name with the compiler version. + string(REGEX MATCH "^[0-9]+.[0-9]+" LLVM_VERSION + "${CMAKE_${LANG}_COMPILER_VERSION}") + + # llvm-cov prior version 3.5 seems to be not working with coverage + # evaluation tools, but these versions are compatible with the gcc + # gcov tool. + if(LLVM_VERSION VERSION_GREATER 3.4) + find_program(LLVM_COV_BIN NAMES "llvm-cov-${LLVM_VERSION}" + "llvm-cov" HINTS ${COMPILER_PATH}) + mark_as_advanced(LLVM_COV_BIN) + + if (LLVM_COV_BIN) + find_program(LLVM_COV_WRAPPER "llvm-cov-wrapper" PATHS + ${CMAKE_MODULE_PATH}) + if (LLVM_COV_WRAPPER) + set(GCOV_BIN "${LLVM_COV_WRAPPER}" CACHE FILEPATH "") + + # set additional parameters + set(GCOV_${CMAKE_${LANG}_COMPILER_ID}_ENV + "LLVM_COV_BIN=${LLVM_COV_BIN}" CACHE STRING + "Environment variables for llvm-cov-wrapper.") + mark_as_advanced(GCOV_${CMAKE_${LANG}_COMPILER_ID}_ENV) + endif () + endif () + endif () + + if (NOT GCOV_BIN) + # Fall back to gcov binary if llvm-cov was not found or is + # incompatible. This is the default on OSX, but may crash on + # recent Linux versions. + find_program(GCOV_BIN gcov HINTS ${COMPILER_PATH}) + endif () + endif () + + + if (GCOV_BIN) + set(GCOV_${CMAKE_${LANG}_COMPILER_ID}_BIN "${GCOV_BIN}" CACHE STRING + "${LANG} gcov binary.") + + if (NOT CMAKE_REQUIRED_QUIET) + message("-- Found gcov evaluation for " + "${CMAKE_${LANG}_COMPILER_ID}: ${GCOV_BIN}") + endif() + + unset(GCOV_BIN CACHE) + endif () + endif () +endforeach () + + + + +# Add a new global target for all gcov targets. This target could be used to +# generate the gcov files for the whole project instead of calling <TARGET>-gcov +# for each target. +if (NOT TARGET gcov) + add_custom_target(gcov) +endif (NOT TARGET gcov) + + + +# This function will add gcov evaluation for target <TNAME>. Only sources of +# this target will be evaluated and no dependencies will be added. It will call +# Gcov on any source file of <TNAME> once and store the gcov file in the same +# directory. +function (add_gcov_target TNAME) + set(TDIR ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/${TNAME}.dir) + + # We don't have to check, if the target has support for coverage, thus this + # will be checked by add_coverage_target in Findcoverage.cmake. Instead we + # have to determine which gcov binary to use. + get_target_property(TSOURCES ${TNAME} SOURCES) + set(SOURCES "") + set(TCOMPILER "") + foreach (FILE ${TSOURCES}) + codecov_path_of_source(${FILE} FILE) + if (NOT "${FILE}" STREQUAL "") + codecov_lang_of_source(${FILE} LANG) + if (NOT "${LANG}" STREQUAL "") + list(APPEND SOURCES "${FILE}") + set(TCOMPILER ${CMAKE_${LANG}_COMPILER_ID}) + endif () + endif () + endforeach () + + # If no gcov binary was found, coverage data can't be evaluated. + if (NOT GCOV_${TCOMPILER}_BIN) + message(WARNING "No coverage evaluation binary found for ${TCOMPILER}.") + return() + endif () + + set(GCOV_BIN "${GCOV_${TCOMPILER}_BIN}") + set(GCOV_ENV "${GCOV_${TCOMPILER}_ENV}") + + + set(BUFFER "") + foreach(FILE ${SOURCES}) + get_filename_component(FILE_PATH "${TDIR}/${FILE}" PATH) + + # call gcov + add_custom_command(OUTPUT ${TDIR}/${FILE}.gcov + COMMAND ${GCOV_ENV} ${GCOV_BIN} ${TDIR}/${FILE}.gcno > /dev/null + DEPENDS ${TNAME} ${TDIR}/${FILE}.gcno + WORKING_DIRECTORY ${FILE_PATH} + ) + + list(APPEND BUFFER ${TDIR}/${FILE}.gcov) + endforeach() + + + # add target for gcov evaluation of <TNAME> + add_custom_target(${TNAME}-gcov DEPENDS ${BUFFER}) + + # add evaluation target to the global gcov target. + add_dependencies(gcov ${TNAME}-gcov) +endfunction (add_gcov_target) diff --git a/CMAKE/Findcodecov.cmake b/CMAKE/Findcodecov.cmake new file mode 100644 index 00000000..11250784 --- /dev/null +++ b/CMAKE/Findcodecov.cmake @@ -0,0 +1,256 @@ +# This file is part of CMake-codecov. +# +# Copyright (c) +# 2015-2016 RWTH Aachen University, Federal Republic of Germany +# +# See the LICENSE file in the package base directory for details +# +# Written by Alexander Haase, alexander.haase@rwth-aachen.de +# + + +# Add an option to choose, if coverage should be enabled or not. If enabled +# marked targets will be build with coverage support and appropriate targets +# will be added. If disabled coverage will be ignored for *ALL* targets. +option(ENABLE_COVERAGE "Enable coverage build." OFF) + +set(COVERAGE_FLAG_CANDIDATES + # gcc and clang + "-O0 -g -fprofile-arcs -ftest-coverage" + + # gcc and clang fallback + "-O0 -g --coverage" +) + + +# To avoid error messages about CMP0051, this policy will be set to new. There +# will be no problem, as TARGET_OBJECTS generator expressions will be filtered +# with a regular expression from the sources. +if (POLICY CMP0051) + cmake_policy(SET CMP0051 NEW) +endif() + + +# Add coverage support for target ${TNAME} and register target for coverage +# evaluation. If coverage is disabled or not supported, this function will +# simply do nothing. +# +# Note: This function is only a wrapper to define this function always, even if +# coverage is not supported by the compiler or disabled. This function must +# be defined here, because the module will be exited, if there is no coverage +# support by the compiler or it is disabled by the user. +function (add_coverage TNAME) + # only add coverage for target, if coverage is support and enabled. + if (ENABLE_COVERAGE) + foreach (TNAME ${ARGV}) + add_coverage_target(${TNAME}) + endforeach () + endif () +endfunction (add_coverage) + + +# Add global target to gather coverage information after all targets have been +# added. Other evaluation functions could be added here, after checks for the +# specific module have been passed. +# +# Note: This function is only a wrapper to define this function always, even if +# coverage is not supported by the compiler or disabled. This function must +# be defined here, because the module will be exited, if there is no coverage +# support by the compiler or it is disabled by the user. +function (coverage_evaluate) + # add lcov evaluation + if (LCOV_FOUND) + lcov_capture_initial() + lcov_capture() + endif (LCOV_FOUND) +endfunction () + + +# Exit this module, if coverage is disabled. add_coverage is defined before this +# return, so this module can be exited now safely without breaking any build- +# scripts. +if (NOT ENABLE_COVERAGE) + return() +endif () + + + + +# Find the reuired flags foreach language. +set(CMAKE_REQUIRED_QUIET_SAVE ${CMAKE_REQUIRED_QUIET}) +set(CMAKE_REQUIRED_QUIET ${codecov_FIND_QUIETLY}) + +get_property(ENABLED_LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES) +foreach (LANG ${ENABLED_LANGUAGES}) + # Coverage flags are not dependend on language, but the used compiler. So + # instead of searching flags foreach language, search flags foreach compiler + # used. + set(COMPILER ${CMAKE_${LANG}_COMPILER_ID}) + if (NOT COVERAGE_${COMPILER}_FLAGS) + foreach (FLAG ${COVERAGE_FLAG_CANDIDATES}) + if(NOT CMAKE_REQUIRED_QUIET) + message(STATUS "Try ${COMPILER} code coverage flag = [${FLAG}]") + endif() + + set(CMAKE_REQUIRED_FLAGS "${FLAG}") + unset(COVERAGE_FLAG_DETECTED CACHE) + + if (${LANG} STREQUAL "C") + include(CheckCCompilerFlag) + check_c_compiler_flag("${FLAG}" COVERAGE_FLAG_DETECTED) + + elseif (${LANG} STREQUAL "CXX") + include(CheckCXXCompilerFlag) + check_cxx_compiler_flag("${FLAG}" COVERAGE_FLAG_DETECTED) + + elseif (${LANG} STREQUAL "Fortran") + # CheckFortranCompilerFlag was introduced in CMake 3.x. To be + # compatible with older Cmake versions, we will check if this + # module is present before we use it. Otherwise we will define + # Fortran coverage support as not available. + include(CheckFortranCompilerFlag OPTIONAL + RESULT_VARIABLE INCLUDED) + if (INCLUDED) + check_fortran_compiler_flag("${FLAG}" + COVERAGE_FLAG_DETECTED) + elseif (NOT CMAKE_REQUIRED_QUIET) + message("-- Performing Test COVERAGE_FLAG_DETECTED") + message("-- Performing Test COVERAGE_FLAG_DETECTED - Failed" + " (Check not supported)") + endif () + endif() + + if (COVERAGE_FLAG_DETECTED) + set(COVERAGE_${COMPILER}_FLAGS "${FLAG}" + CACHE STRING "${COMPILER} flags for code coverage.") + mark_as_advanced(COVERAGE_${COMPILER}_FLAGS) + break() + endif () + endforeach () + endif () +endforeach () + +set(CMAKE_REQUIRED_QUIET ${CMAKE_REQUIRED_QUIET_SAVE}) + + + + +# Helper function to get the language of a source file. +function (codecov_lang_of_source FILE RETURN_VAR) + get_filename_component(FILE_EXT "${FILE}" EXT) + string(TOLOWER "${FILE_EXT}" FILE_EXT) + string(SUBSTRING "${FILE_EXT}" 1 -1 FILE_EXT) + + get_property(ENABLED_LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES) + foreach (LANG ${ENABLED_LANGUAGES}) + list(FIND CMAKE_${LANG}_SOURCE_FILE_EXTENSIONS "${FILE_EXT}" TEMP) + if (NOT ${TEMP} EQUAL -1) + set(${RETURN_VAR} "${LANG}" PARENT_SCOPE) + return() + endif () + endforeach() + + set(${RETURN_VAR} "" PARENT_SCOPE) +endfunction () + + +# Helper function to get the relative path of the source file destination path. +# This path is needed by FindGcov and FindLcov cmake files to locate the +# captured data. +function (codecov_path_of_source FILE RETURN_VAR) + string(REGEX MATCH "TARGET_OBJECTS:([^ >]+)" _source ${FILE}) + + # If expression was found, SOURCEFILE is a generator-expression for an + # object library. Currently we found no way to call this function automatic + # for the referenced target, so it must be called in the directoryso of the + # object library definition. + if (NOT "${_source}" STREQUAL "") + set(${RETURN_VAR} "" PARENT_SCOPE) + return() + endif () + + + string(REPLACE "${CMAKE_CURRENT_BINARY_DIR}/" "" FILE "${FILE}") + if(IS_ABSOLUTE ${FILE}) + file(RELATIVE_PATH FILE ${CMAKE_CURRENT_SOURCE_DIR} ${FILE}) + endif() + + # get the right path for file + string(REPLACE ".." "__" PATH "${FILE}") + + set(${RETURN_VAR} "${PATH}" PARENT_SCOPE) +endfunction() + + + + +# Add coverage support for target ${TNAME} and register target for coverage +# evaluation. +function(add_coverage_target TNAME) + # Check if all sources for target use the same compiler. If a target uses + # e.g. C and Fortran mixed and uses different compilers (e.g. clang and + # gfortran) this can trigger huge problems, because different compilers may + # use different implementations for code coverage. + get_target_property(TSOURCES ${TNAME} SOURCES) + set(TARGET_COMPILER "") + set(ADDITIONAL_FILES "") + foreach (FILE ${TSOURCES}) + # If expression was found, FILE is a generator-expression for an object + # library. Object libraries will be ignored. + string(REGEX MATCH "TARGET_OBJECTS:([^ >]+)" _file ${FILE}) + if ("${_file}" STREQUAL "") + codecov_lang_of_source(${FILE} LANG) + if (LANG) + list(APPEND TARGET_COMPILER ${CMAKE_${LANG}_COMPILER_ID}) + + list(APPEND ADDITIONAL_FILES "${FILE}.gcno") + list(APPEND ADDITIONAL_FILES "${FILE}.gcda") + endif () + endif () + endforeach () + + list(REMOVE_DUPLICATES TARGET_COMPILER) + list(LENGTH TARGET_COMPILER NUM_COMPILERS) + + if (NUM_COMPILERS GREATER 1) + message(AUTHOR_WARNING "Coverage disabled for target ${TNAME} because " + "it will be compiled by different compilers.") + return() + + elseif ((NUM_COMPILERS EQUAL 0) OR + (NOT DEFINED "COVERAGE_${TARGET_COMPILER}_FLAGS")) + message(AUTHOR_WARNING "Coverage disabled for target ${TNAME} " + "because there is no sanitizer available for target sources.") + return() + endif() + + + # enable coverage for target + set_property(TARGET ${TNAME} APPEND_STRING + PROPERTY COMPILE_FLAGS " ${COVERAGE_${TARGET_COMPILER}_FLAGS}") + set_property(TARGET ${TNAME} APPEND_STRING + PROPERTY LINK_FLAGS " ${COVERAGE_${TARGET_COMPILER}_FLAGS}") + + + # Add gcov files generated by compiler to clean target. + set(CLEAN_FILES "") + foreach (FILE ${ADDITIONAL_FILES}) + codecov_path_of_source(${FILE} FILE) + list(APPEND CLEAN_FILES "CMakeFiles/${TNAME}.dir/${FILE}") + endforeach() + + set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES + "${CLEAN_FILES}") + + + add_gcov_target(${TNAME}) + add_lcov_target(${TNAME}) +endfunction(add_coverage_target) + + + + +# Include modules for parsing the collected data and output it in a readable +# format (like gcov and lcov). +find_package(Gcov) +find_package(Lcov) |