1set(LIBFUZZER_TEST_DEPS ${SANITIZER_COMMON_LIT_TEST_DEPS})
2if (NOT COMPILER_RT_STANDALONE_BUILD)
3  list(APPEND LIBFUZZER_TEST_DEPS fuzzer asan ubsan)
4  if (COMPILER_RT_HAS_MSAN)
5    list(APPEND LIBFUZZER_TEST_DEPS msan)
6  endif()
7  if (COMPILER_RT_HAS_DFSAN)
8    list(APPEND LIBFUZZER_TEST_DEPS dfsan)
9  endif()
10  if(NOT APPLE AND COMPILER_RT_HAS_LLD AND TARGET lld)
11    list(APPEND LIBFUZZER_TEST_DEPS lld)
12  endif()
13endif()
14
15set(FUZZER_TEST_ARCH ${FUZZER_SUPPORTED_ARCH})
16if (APPLE)
17  darwin_filter_host_archs(FUZZER_SUPPORTED_ARCH FUZZER_TEST_ARCH)
18endif()
19
20if(COMPILER_RT_INCLUDE_TESTS)
21  list(APPEND LIBFUZZER_TEST_DEPS FuzzerUnitTests)
22  list(APPEND LIBFUZZER_TEST_DEPS FuzzedDataProviderUnitTests)
23endif()
24
25add_custom_target(check-fuzzer)
26
27if(COMPILER_RT_INCLUDE_TESTS)
28  # libFuzzer unit tests.
29  configure_lit_site_cfg(
30    ${CMAKE_CURRENT_SOURCE_DIR}/unit/lit.site.cfg.py.in
31    ${CMAKE_CURRENT_BINARY_DIR}/unit/lit.site.cfg.py)
32  add_lit_testsuite(check-fuzzer-unit "Running Fuzzer unit tests"
33    ${CMAKE_CURRENT_BINARY_DIR}/unit
34    DEPENDS ${LIBFUZZER_TEST_DEPS})
35  set_target_properties(check-fuzzer-unit PROPERTIES FOLDER "Compiler-RT Tests")
36  add_dependencies(check-fuzzer check-fuzzer-unit)
37endif()
38
39macro(test_fuzzer stdlib)
40  cmake_parse_arguments(TEST "" "" "DEPS" ${ARGN})
41  string(REPLACE "+" "x" stdlib_name ${stdlib})
42  string(REPLACE "-" ";" stdlib_list ${stdlib_name})
43  set(STDLIB_CAPITALIZED "")
44  foreach(part IN LISTS stdlib_list)
45    string(SUBSTRING ${part} 0 1 first_letter)
46    string(TOUPPER ${first_letter} first_letter)
47    string(REGEX REPLACE "^.(.*)" "${first_letter}\\1" part "${part}")
48    set(STDLIB_CAPITALIZED "${STDLIB_CAPITALIZED}${part}")
49  endforeach()
50  foreach(arch ${FUZZER_TEST_ARCH})
51    set(LIBFUZZER_TEST_COMPILER ${COMPILER_RT_TEST_COMPILER})
52    get_test_cc_for_arch(${arch} LIBFUZZER_TEST_COMPILER LIBFUZZER_TEST_FLAGS)
53
54    set(LIBFUZZER_TEST_TARGET_ARCH ${arch})
55    set(LIBFUZZER_TEST_APPLE_PLATFORM "osx")
56    set(LIBFUZZER_TEST_MIN_DEPLOYMENT_TARGET_FLAG "${DARWIN_osx_MIN_VER_FLAG}")
57
58    set(LIBFUZZER_TEST_STDLIB ${stdlib})
59
60    string(TOUPPER ${arch} ARCH_UPPER_CASE)
61    set(CONFIG_NAME ${ARCH_UPPER_CASE}${STDLIB_CAPITALIZED}${OS_NAME}Config)
62
63    # LIT-based libFuzzer tests.
64    configure_lit_site_cfg(
65      ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in
66      ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg.py
67      )
68
69    add_lit_testsuite(check-fuzzer-${stdlib_name}-${arch}
70      "Running libFuzzer ${stdlib} tests for arch ${arch}"
71      ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/
72      DEPENDS ${LIBFUZZER_TEST_DEPS})
73    if(TEST_DEPS)
74      add_dependencies(check-fuzzer-${stdlib_name}-${arch} ${TEST_DEPS})
75    endif()
76    set_target_properties(check-fuzzer-${stdlib_name}-${arch}
77        PROPERTIES FOLDER "Compiler-RT Tests")
78    add_dependencies(check-fuzzer check-fuzzer-${stdlib_name}-${arch})
79  endforeach()
80endmacro()
81
82test_fuzzer("default")
83if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
84  if(TARGET cxx_shared)
85    test_fuzzer("libc++" DEPS cxx_shared)
86  endif()
87  if(TARGET cxx_static)
88    test_fuzzer("static-libc++" DEPS cxx_static)
89  endif()
90endif()
91
92if (APPLE)
93  set(LIBFUZZER_TEST_COMPILER ${COMPILER_RT_TEST_COMPILER})
94  set(FUZZER_APPLE_PLATFORMS ${FUZZER_SUPPORTED_OS})
95  foreach(platform ${FUZZER_APPLE_PLATFORMS})
96    if ("${platform}" STREQUAL "osx")
97      # Skip macOS because it's handled by the code above that builds tests for the host machine.
98      continue()
99    endif()
100    list_intersect(
101      FUZZER_TEST_${platform}_ARCHS
102      FUZZER_SUPPORTED_ARCH
103      DARWIN_${platform}_ARCHS
104    )
105    foreach(arch ${FUZZER_TEST_${platform}_ARCHS})
106      get_test_cflags_for_apple_platform(
107        "${platform}"
108        "${arch}"
109        LIBFUZZER_TEST_FLAGS
110        )
111      string(TOUPPER "${arch}" ARCH_UPPER_CASE)
112      get_capitalized_apple_platform("${platform}" PLATFORM_CAPITALIZED)
113      set(CONFIG_NAME "${PLATFORM_CAPITALIZED}${ARCH_UPPER_CASE}Config")
114      set(LIBFUZZER_TEST_CONFIG_SUFFIX "-${arch}-${platform}")
115      set(LIBFUZZER_TEST_APPLE_PLATFORM "${platform}")
116      set(LIBFUZZER_TEST_TARGET_ARCH "${arch}")
117      set(LIBFUZZER_TEST_MIN_DEPLOYMENT_TARGET_FLAG "${DARWIN_${platform}_MIN_VER_FLAG}")
118      configure_lit_site_cfg(
119        ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in
120        ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg.py
121        )
122      add_lit_testsuite(check-fuzzer-${platform}-${arch} "libFuzzer ${platform} ${arch} tests"
123        EXCLUDE_FROM_CHECK_ALL
124        ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/
125        DEPENDS ${LIBFUZZER_TEST_DEPS})
126    endforeach()
127  endforeach()
128endif()
129