xref: /aosp_15_r20/external/libcxx/cmake/Modules/CodeCoverage.cmake (revision 58b9f456b02922dfdb1fad8a988d5fd8765ecb80)
1*58b9f456SAndroid Build Coastguard Workerfind_program(CODE_COVERAGE_LCOV lcov)
2*58b9f456SAndroid Build Coastguard Workerif (NOT CODE_COVERAGE_LCOV)
3*58b9f456SAndroid Build Coastguard Worker  message(FATAL_ERROR "Cannot find lcov...")
4*58b9f456SAndroid Build Coastguard Workerendif()
5*58b9f456SAndroid Build Coastguard Worker
6*58b9f456SAndroid Build Coastguard Workerfind_program(CODE_COVERAGE_LLVM_COV llvm-cov)
7*58b9f456SAndroid Build Coastguard Workerif (NOT CODE_COVERAGE_LLVM_COV)
8*58b9f456SAndroid Build Coastguard Worker  message(FATAL_ERROR "Cannot find llvm-cov...")
9*58b9f456SAndroid Build Coastguard Workerendif()
10*58b9f456SAndroid Build Coastguard Worker
11*58b9f456SAndroid Build Coastguard Workerfind_program(CODE_COVERAGE_GENHTML genhtml)
12*58b9f456SAndroid Build Coastguard Workerif (NOT CODE_COVERAGE_GENHTML)
13*58b9f456SAndroid Build Coastguard Worker  message(FATAL_ERROR "Cannot find genhtml...")
14*58b9f456SAndroid Build Coastguard Workerendif()
15*58b9f456SAndroid Build Coastguard Worker
16*58b9f456SAndroid Build Coastguard Workerset(CMAKE_CXX_FLAGS_COVERAGE "-g -O0 --coverage")
17*58b9f456SAndroid Build Coastguard Worker
18*58b9f456SAndroid Build Coastguard Workerfunction(setup_lcov_test_target_coverage target_name output_dir capture_dirs source_dirs)
19*58b9f456SAndroid Build Coastguard Worker  if (NOT DEFINED LIBCXX_BINARY_DIR)
20*58b9f456SAndroid Build Coastguard Worker    message(FATAL_ERROR "Variable must be set")
21*58b9f456SAndroid Build Coastguard Worker  endif()
22*58b9f456SAndroid Build Coastguard Worker
23*58b9f456SAndroid Build Coastguard Worker  set(GCOV_TOOL "${LIBCXX_BINARY_DIR}/llvm-cov-wrapper")
24*58b9f456SAndroid Build Coastguard Worker  file(GENERATE OUTPUT ${GCOV_TOOL}
25*58b9f456SAndroid Build Coastguard Worker    CONTENT "#!/usr/bin/env bash\n${CODE_COVERAGE_LLVM_COV} gcov \"$@\"\n")
26*58b9f456SAndroid Build Coastguard Worker
27*58b9f456SAndroid Build Coastguard Worker  file(MAKE_DIRECTORY ${output_dir})
28*58b9f456SAndroid Build Coastguard Worker
29*58b9f456SAndroid Build Coastguard Worker  set(CAPTURE_DIRS "")
30*58b9f456SAndroid Build Coastguard Worker  foreach(cdir ${capture_dirs})
31*58b9f456SAndroid Build Coastguard Worker    list(APPEND CAPTURE_DIRS "-d;${cdir}")
32*58b9f456SAndroid Build Coastguard Worker  endforeach()
33*58b9f456SAndroid Build Coastguard Worker
34*58b9f456SAndroid Build Coastguard Worker  set(EXTRACT_DIRS "")
35*58b9f456SAndroid Build Coastguard Worker  foreach(sdir ${source_dirs})
36*58b9f456SAndroid Build Coastguard Worker    list(APPEND EXTRACT_DIRS "'${sdir}/*'")
37*58b9f456SAndroid Build Coastguard Worker  endforeach()
38*58b9f456SAndroid Build Coastguard Worker
39*58b9f456SAndroid Build Coastguard Worker  message(STATUS "Capture Directories: ${CAPTURE_DIRS}")
40*58b9f456SAndroid Build Coastguard Worker  message(STATUS "Extract Directories: ${EXTRACT_DIRS}")
41*58b9f456SAndroid Build Coastguard Worker
42*58b9f456SAndroid Build Coastguard Worker  add_custom_target(generate-lib${target_name}-coverage
43*58b9f456SAndroid Build Coastguard Worker        COMMAND chmod +x ${GCOV_TOOL}
44*58b9f456SAndroid Build Coastguard Worker        COMMAND ${CODE_COVERAGE_LCOV} --gcov-tool ${GCOV_TOOL} --capture ${CAPTURE_DIRS} -o test_coverage.info
45*58b9f456SAndroid Build Coastguard Worker        COMMAND ${CODE_COVERAGE_LCOV} --gcov-tool ${GCOV_TOOL} --extract test_coverage.info ${EXTRACT_DIRS} -o test_coverage.info
46*58b9f456SAndroid Build Coastguard Worker        COMMAND ${CODE_COVERAGE_GENHTML} --demangle-cpp test_coverage.info -o test_coverage
47*58b9f456SAndroid Build Coastguard Worker        COMMAND ${CMAKE_COMMAND} -E remove test_coverage.info
48*58b9f456SAndroid Build Coastguard Worker        WORKING_DIRECTORY ${output_dir}
49*58b9f456SAndroid Build Coastguard Worker        COMMENT "Generating coverage results")
50*58b9f456SAndroid Build Coastguard Workerendfunction()
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