xref: /netbsd-src/external/apache2/llvm/dist/libcxx/cmake/Modules/CodeCoverage.cmake (revision 4d6fc14bc9b0c5bf3e30be318c143ee82cadd108)
1*4d6fc14bSjoergfind_program(CODE_COVERAGE_LCOV lcov)
2*4d6fc14bSjoergif (NOT CODE_COVERAGE_LCOV)
3*4d6fc14bSjoerg  message(FATAL_ERROR "Cannot find lcov...")
4*4d6fc14bSjoergendif()
5*4d6fc14bSjoerg
6*4d6fc14bSjoergfind_program(CODE_COVERAGE_LLVM_COV llvm-cov)
7*4d6fc14bSjoergif (NOT CODE_COVERAGE_LLVM_COV)
8*4d6fc14bSjoerg  message(FATAL_ERROR "Cannot find llvm-cov...")
9*4d6fc14bSjoergendif()
10*4d6fc14bSjoerg
11*4d6fc14bSjoergfind_program(CODE_COVERAGE_GENHTML genhtml)
12*4d6fc14bSjoergif (NOT CODE_COVERAGE_GENHTML)
13*4d6fc14bSjoerg  message(FATAL_ERROR "Cannot find genhtml...")
14*4d6fc14bSjoergendif()
15*4d6fc14bSjoerg
16*4d6fc14bSjoergset(CMAKE_CXX_FLAGS_COVERAGE "-g -O0 --coverage")
17*4d6fc14bSjoerg
18*4d6fc14bSjoergfunction(setup_lcov_test_target_coverage target_name output_dir capture_dirs source_dirs)
19*4d6fc14bSjoerg  if (NOT DEFINED LIBCXX_BINARY_DIR)
20*4d6fc14bSjoerg    message(FATAL_ERROR "Variable must be set")
21*4d6fc14bSjoerg  endif()
22*4d6fc14bSjoerg
23*4d6fc14bSjoerg  set(GCOV_TOOL "${LIBCXX_BINARY_DIR}/llvm-cov-wrapper")
24*4d6fc14bSjoerg  file(GENERATE OUTPUT ${GCOV_TOOL}
25*4d6fc14bSjoerg    CONTENT "#!/usr/bin/env bash\n${CODE_COVERAGE_LLVM_COV} gcov \"$@\"\n")
26*4d6fc14bSjoerg
27*4d6fc14bSjoerg  file(MAKE_DIRECTORY ${output_dir})
28*4d6fc14bSjoerg
29*4d6fc14bSjoerg  set(CAPTURE_DIRS "")
30*4d6fc14bSjoerg  foreach(cdir ${capture_dirs})
31*4d6fc14bSjoerg    list(APPEND CAPTURE_DIRS "-d;${cdir}")
32*4d6fc14bSjoerg  endforeach()
33*4d6fc14bSjoerg
34*4d6fc14bSjoerg  set(EXTRACT_DIRS "")
35*4d6fc14bSjoerg  foreach(sdir ${source_dirs})
36*4d6fc14bSjoerg    list(APPEND EXTRACT_DIRS "'${sdir}/*'")
37*4d6fc14bSjoerg  endforeach()
38*4d6fc14bSjoerg
39*4d6fc14bSjoerg  message(STATUS "Capture Directories: ${CAPTURE_DIRS}")
40*4d6fc14bSjoerg  message(STATUS "Extract Directories: ${EXTRACT_DIRS}")
41*4d6fc14bSjoerg
42*4d6fc14bSjoerg  add_custom_target(generate-lib${target_name}-coverage
43*4d6fc14bSjoerg        COMMAND chmod +x ${GCOV_TOOL}
44*4d6fc14bSjoerg        COMMAND ${CODE_COVERAGE_LCOV} --gcov-tool ${GCOV_TOOL} --capture ${CAPTURE_DIRS} -o test_coverage.info
45*4d6fc14bSjoerg        COMMAND ${CODE_COVERAGE_LCOV} --gcov-tool ${GCOV_TOOL} --extract test_coverage.info ${EXTRACT_DIRS} -o test_coverage.info
46*4d6fc14bSjoerg        COMMAND ${CODE_COVERAGE_GENHTML} --demangle-cpp test_coverage.info -o test_coverage
47*4d6fc14bSjoerg        COMMAND ${CMAKE_COMMAND} -E remove test_coverage.info
48*4d6fc14bSjoerg        WORKING_DIRECTORY ${output_dir}
49*4d6fc14bSjoerg        COMMENT "Generating coverage results")
50*4d6fc14bSjoergendfunction()
51