1 # Build for the AddressSanitizer runtime support library. 2 3 set(ASAN_SOURCES 4 asan_allocator.cc 5 asan_activation.cc 6 asan_debugging.cc 7 asan_fake_stack.cc 8 asan_flags.cc 9 asan_globals.cc 10 asan_interceptors.cc 11 asan_linux.cc 12 asan_mac.cc 13 asan_malloc_linux.cc 14 asan_malloc_mac.cc 15 asan_malloc_win.cc 16 asan_memory_profile.cc 17 asan_poisoning.cc 18 asan_posix.cc 19 asan_report.cc 20 asan_rtl.cc 21 asan_stack.cc 22 asan_stats.cc 23 asan_suppressions.cc 24 asan_thread.cc 25 asan_win.cc) 26 27 set(ASAN_CXX_SOURCES 28 asan_new_delete.cc) 29 30 set(ASAN_PREINIT_SOURCES 31 asan_preinit.cc) 32 33 include_directories(..) 34 35 set(ASAN_CFLAGS ${SANITIZER_COMMON_CFLAGS}) 36 append_rtti_flag(OFF ASAN_CFLAGS) 37 38 set(ASAN_COMMON_DEFINITIONS 39 ASAN_HAS_EXCEPTIONS=1) 40 41 set(ASAN_DYNAMIC_LINK_FLAGS) 42 43 if(ANDROID) 44 list(APPEND ASAN_COMMON_DEFINITIONS 45 ASAN_LOW_MEMORY=1) 46 # On Android, -z global does not do what it is documented to do. 47 # On Android, -z global moves the library ahead in the lookup order, 48 # placing it right after the LD_PRELOADs. This is used to compensate for the fact 49 # that Android linker does not look at the dependencies of the main executable 50 # that aren't dependencies of the current DSO when resolving symbols from said DSO. 51 # As a net result, this allows running ASan executables without LD_PRELOAD-ing the 52 # ASan runtime library. 53 # The above is applicable to L MR1 or newer. 54 if (COMPILER_RT_HAS_Z_GLOBAL) 55 list(APPEND ASAN_DYNAMIC_LINK_FLAGS -Wl,-z,global) 56 endif() 57 endif() 58 59 set(ASAN_DYNAMIC_DEFINITIONS 60 ${ASAN_COMMON_DEFINITIONS} ASAN_DYNAMIC=1) 61 append_list_if(WIN32 INTERCEPTION_DYNAMIC_CRT ASAN_DYNAMIC_DEFINITIONS) 62 63 set(ASAN_DYNAMIC_CFLAGS ${ASAN_CFLAGS}) 64 append_list_if(COMPILER_RT_HAS_FTLS_MODEL_INITIAL_EXEC 65 -ftls-model=initial-exec ASAN_DYNAMIC_CFLAGS) 66 append_list_if(MSVC /DEBUG ASAN_DYNAMIC_LINK_FLAGS) 67 68 append_list_if(COMPILER_RT_HAS_LIBC c ASAN_DYNAMIC_LIBS) 69 append_list_if(COMPILER_RT_HAS_LIBDL dl ASAN_DYNAMIC_LIBS) 70 append_list_if(COMPILER_RT_HAS_LIBRT rt ASAN_DYNAMIC_LIBS) 71 append_list_if(COMPILER_RT_HAS_LIBM m ASAN_DYNAMIC_LIBS) 72 append_list_if(COMPILER_RT_HAS_LIBPTHREAD pthread ASAN_DYNAMIC_LIBS) 73 append_list_if(COMPILER_RT_HAS_LIBSTDCXX stdc++ ASAN_DYNAMIC_LIBS) 74 append_list_if(COMPILER_RT_HAS_LIBLOG log ASAN_DYNAMIC_LIBS) 75 76 # Compile ASan sources into an object library. 77 78 add_compiler_rt_object_libraries(RTAsan_dynamic 79 OS ${SANITIZER_COMMON_SUPPORTED_OS} 80 ARCHS ${ASAN_SUPPORTED_ARCH} 81 SOURCES ${ASAN_SOURCES} ${ASAN_CXX_SOURCES} 82 CFLAGS ${ASAN_DYNAMIC_CFLAGS} 83 DEFS ${ASAN_DYNAMIC_DEFINITIONS}) 84 85 if(NOT APPLE) 86 add_compiler_rt_object_libraries(RTAsan 87 ARCHS ${ASAN_SUPPORTED_ARCH} 88 SOURCES ${ASAN_SOURCES} CFLAGS ${ASAN_CFLAGS} 89 DEFS ${ASAN_COMMON_DEFINITIONS}) 90 add_compiler_rt_object_libraries(RTAsan_cxx 91 ARCHS ${ASAN_SUPPORTED_ARCH} 92 SOURCES ${ASAN_CXX_SOURCES} CFLAGS ${ASAN_CFLAGS} 93 DEFS ${ASAN_COMMON_DEFINITIONS}) 94 add_compiler_rt_object_libraries(RTAsan_preinit 95 ARCHS ${ASAN_SUPPORTED_ARCH} 96 SOURCES ${ASAN_PREINIT_SOURCES} CFLAGS ${ASAN_CFLAGS} 97 DEFS ${ASAN_COMMON_DEFINITIONS}) 98 99 file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/dummy.cc "") 100 add_compiler_rt_object_libraries(RTAsan_dynamic_version_script_dummy 101 ARCHS ${ASAN_SUPPORTED_ARCH} 102 SOURCES ${CMAKE_CURRENT_BINARY_DIR}/dummy.cc 103 CFLAGS ${ASAN_DYNAMIC_CFLAGS} 104 DEFS ${ASAN_DYNAMIC_DEFINITIONS}) 105 endif() 106 107 # Build ASan runtimes shipped with Clang. 108 add_custom_target(asan) 109 set_target_properties(asan PROPERTIES FOLDER "Compiler-RT Misc") 110 111 if(APPLE) 112 add_compiler_rt_runtime(clang_rt.asan 113 SHARED 114 OS ${SANITIZER_COMMON_SUPPORTED_OS} 115 ARCHS ${ASAN_SUPPORTED_ARCH} 116 OBJECT_LIBS RTAsan_dynamic 117 RTInterception 118 RTSanitizerCommon 119 RTSanitizerCommonLibc 120 RTLSanCommon 121 RTUbsan 122 CFLAGS ${ASAN_DYNAMIC_CFLAGS} 123 DEFS ${ASAN_DYNAMIC_DEFINITIONS} 124 PARENT_TARGET asan) 125 else() 126 # Build separate libraries for each target. 127 128 set(ASAN_COMMON_RUNTIME_OBJECT_LIBS 129 RTInterception 130 RTSanitizerCommon 131 RTSanitizerCommonLibc 132 RTLSanCommon 133 RTUbsan) 134 135 add_compiler_rt_runtime(clang_rt.asan 136 STATIC 137 ARCHS ${ASAN_SUPPORTED_ARCH} 138 OBJECT_LIBS RTAsan_preinit 139 RTAsan 140 ${ASAN_COMMON_RUNTIME_OBJECT_LIBS} 141 CFLAGS ${ASAN_CFLAGS} 142 DEFS ${ASAN_COMMON_DEFINITIONS} 143 PARENT_TARGET asan) 144 145 add_compiler_rt_runtime(clang_rt.asan_cxx 146 STATIC 147 ARCHS ${ASAN_SUPPORTED_ARCH} 148 OBJECT_LIBS RTAsan_cxx 149 RTUbsan_cxx 150 CFLAGS ${ASAN_CFLAGS} 151 DEFS ${ASAN_COMMON_DEFINITIONS} 152 PARENT_TARGET asan) 153 154 add_compiler_rt_runtime(clang_rt.asan-preinit 155 STATIC 156 ARCHS ${ASAN_SUPPORTED_ARCH} 157 OBJECT_LIBS RTAsan_preinit 158 CFLAGS ${ASAN_CFLAGS} 159 DEFS ${ASAN_COMMON_DEFINITIONS} 160 PARENT_TARGET asan) 161 162 foreach(arch ${ASAN_SUPPORTED_ARCH}) 163 if (UNIX AND NOT ${arch} MATCHES "i386|i686") 164 add_sanitizer_rt_version_list(clang_rt.asan-dynamic-${arch} 165 LIBS clang_rt.asan-${arch} clang_rt.asan_cxx-${arch} 166 EXTRA asan.syms.extra) 167 set(VERSION_SCRIPT_FLAG 168 -Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/clang_rt.asan-dynamic-${arch}.vers) 169 set_source_files_properties( 170 ${CMAKE_CURRENT_BINARY_DIR}/dummy.cc 171 PROPERTIES 172 OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/clang_rt.asan-dynamic-${arch}.vers) 173 else() 174 set(VERSION_SCRIPT_FLAG) 175 endif() 176 177 add_compiler_rt_runtime(clang_rt.asan 178 SHARED 179 ARCHS ${arch} 180 OBJECT_LIBS ${ASAN_COMMON_RUNTIME_OBJECT_LIBS} 181 RTAsan_dynamic 182 # The only purpose of RTAsan_dynamic_version_script_dummy is to carry 183 # a dependency of the shared runtime on the version script. With CMake 184 # 3.1 or later it can be replaced with a straightforward 185 # add_dependencies(clang_rt.asan-dynamic-${arch} clang_rt.asan-dynamic-${arch}-version-list) 186 RTAsan_dynamic_version_script_dummy 187 RTUbsan_cxx 188 CFLAGS ${ASAN_DYNAMIC_CFLAGS} 189 LINKFLAGS ${ASAN_DYNAMIC_LINK_FLAGS} 190 ${VERSION_SCRIPT_FLAG} 191 LINK_LIBS ${ASAN_DYNAMIC_LIBS} 192 DEFS ${ASAN_DYNAMIC_DEFINITIONS} 193 PARENT_TARGET asan) 194 195 if (UNIX AND NOT ${arch} MATCHES "i386|i686") 196 add_sanitizer_rt_symbols(clang_rt.asan_cxx 197 ARCHS ${arch}) 198 add_dependencies(asan clang_rt.asan_cxx-${arch}-symbols) 199 add_sanitizer_rt_symbols(clang_rt.asan 200 ARCHS ${arch} 201 EXTRA asan.syms.extra) 202 add_dependencies(asan clang_rt.asan-${arch}-symbols) 203 endif() 204 205 if (WIN32) 206 add_compiler_rt_runtime(clang_rt.asan_dll_thunk 207 STATIC 208 ARCHS ${arch} 209 SOURCES asan_win_dll_thunk.cc 210 $<TARGET_OBJECTS:RTInterception.${arch}> 211 CFLAGS ${ASAN_CFLAGS} -DASAN_DLL_THUNK 212 DEFS ${ASAN_COMMON_DEFINITIONS} 213 PARENT_TARGET asan) 214 add_compiler_rt_runtime(clang_rt.asan_dynamic_runtime_thunk 215 STATIC 216 ARCHS ${arch} 217 SOURCES asan_win_dynamic_runtime_thunk.cc 218 CFLAGS ${ASAN_CFLAGS} -DASAN_DYNAMIC_RUNTIME_THUNK -Zl 219 DEFS ${ASAN_COMMON_DEFINITIONS} 220 PARENT_TARGET asan) 221 endif() 222 endforeach() 223 endif() 224 225 add_compiler_rt_resource_file(asan_blacklist asan_blacklist.txt asan) 226 add_dependencies(compiler-rt asan) 227 228 add_subdirectory(scripts) 229 230 if(COMPILER_RT_INCLUDE_TESTS) 231 add_subdirectory(tests) 232 endif() 233
