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      1 # Build for the undefined behavior sanitizer runtime support library.
      2 
      3 set(UBSAN_SOURCES
      4   ubsan_diag.cc
      5   ubsan_init.cc
      6   ubsan_flags.cc
      7   ubsan_handlers.cc
      8   ubsan_value.cc
      9   )
     10 
     11 set(UBSAN_STANDALONE_SOURCES
     12   ubsan_init_standalone.cc
     13   )
     14 
     15 set(UBSAN_CXX_SOURCES
     16   ubsan_handlers_cxx.cc
     17   ubsan_type_hash.cc
     18   ubsan_type_hash_itanium.cc
     19   ubsan_type_hash_win.cc
     20   )
     21 
     22 include_directories(..)
     23 
     24 set(UBSAN_CFLAGS ${SANITIZER_COMMON_CFLAGS})
     25 append_no_rtti_flag(UBSAN_CFLAGS)
     26 set(UBSAN_STANDALONE_CFLAGS ${SANITIZER_COMMON_CFLAGS})
     27 append_no_rtti_flag(UBSAN_STANDALONE_CFLAGS)
     28 set(UBSAN_CXXFLAGS ${SANITIZER_COMMON_CFLAGS})
     29 
     30 add_custom_target(ubsan)
     31 
     32 if(APPLE)
     33   set(UBSAN_COMMON_SOURCES ${UBSAN_SOURCES})
     34   if(SANITIZER_CAN_USE_CXXABI)
     35     list(APPEND UBSAN_COMMON_SOURCES ${UBSAN_CXX_SOURCES})
     36   endif()
     37 
     38   # Common parts of UBSan runtime.
     39   add_compiler_rt_object_libraries(RTUbsan
     40     OS ${SANITIZER_COMMON_SUPPORTED_OS}
     41     ARCHS ${UBSAN_COMMON_SUPPORTED_ARCH}
     42     SOURCES ${UBSAN_COMMON_SOURCES}
     43     CFLAGS ${UBSAN_CXXFLAGS})
     44 
     45   if(COMPILER_RT_HAS_UBSAN)
     46     # Initializer of standalone UBSan runtime.
     47     add_compiler_rt_object_libraries(RTUbsan_standalone
     48       OS ${SANITIZER_COMMON_SUPPORTED_OS}
     49       ARCHS ${UBSAN_SUPPORTED_ARCH}
     50       SOURCES ${UBSAN_STANDALONE_SOURCES}
     51       CFLAGS ${UBSAN_STANDALONE_CFLAGS})
     52 
     53     add_compiler_rt_runtime(clang_rt.ubsan
     54       SHARED
     55       OS ${SANITIZER_COMMON_SUPPORTED_OS}
     56       ARCHS ${UBSAN_SUPPORTED_ARCH}
     57       OBJECT_LIBS RTUbsan
     58                   RTUbsan_standalone
     59                   RTSanitizerCommon
     60                   RTSanitizerCommonLibc
     61       PARENT_TARGET ubsan)
     62   endif()
     63 
     64 else()
     65   # Common parts of UBSan runtime.
     66   add_compiler_rt_object_libraries(RTUbsan
     67     ARCHS ${UBSAN_COMMON_SUPPORTED_ARCH}
     68     SOURCES ${UBSAN_SOURCES} CFLAGS ${UBSAN_CFLAGS})
     69   # C++-specific parts of UBSan runtime. Requires a C++ ABI library.
     70   add_compiler_rt_object_libraries(RTUbsan_cxx
     71     ARCHS ${UBSAN_COMMON_SUPPORTED_ARCH}
     72     SOURCES ${UBSAN_CXX_SOURCES} CFLAGS ${UBSAN_CXXFLAGS})
     73 
     74   if(COMPILER_RT_HAS_UBSAN)
     75     # Initializer of standalone UBSan runtime.
     76     add_compiler_rt_object_libraries(RTUbsan_standalone
     77       ARCHS ${UBSAN_SUPPORTED_ARCH}
     78       SOURCES ${UBSAN_STANDALONE_SOURCES} CFLAGS ${UBSAN_STANDALONE_CFLAGS})
     79     
     80     # Standalone UBSan runtimes.
     81     add_compiler_rt_runtime(clang_rt.ubsan_standalone
     82       STATIC
     83       ARCHS ${UBSAN_SUPPORTED_ARCH}
     84       OBJECT_LIBS RTSanitizerCommon
     85               RTSanitizerCommonLibc
     86               RTUbsan
     87               RTUbsan_standalone
     88       CFLAGS ${UBSAN_CFLAGS}
     89       PARENT_TARGET ubsan)
     90     
     91     add_compiler_rt_runtime(clang_rt.ubsan_standalone_cxx
     92       STATIC
     93       ARCHS ${UBSAN_SUPPORTED_ARCH}
     94       OBJECT_LIBS RTUbsan_cxx
     95       CFLAGS ${UBSAN_CXXFLAGS}
     96       PARENT_TARGET ubsan)
     97 
     98     if (UNIX)
     99       set(ARCHS_FOR_SYMBOLS ${UBSAN_SUPPORTED_ARCH})
    100       list(REMOVE_ITEM ARCHS_FOR_SYMBOLS i386 i686)
    101       add_sanitizer_rt_symbols(clang_rt.ubsan_standalone
    102         ARCHS ${ARCHS_FOR_SYMBOLS}
    103         PARENT_TARGET ubsan
    104         EXTRA ubsan.syms.extra)
    105       add_sanitizer_rt_symbols(clang_rt.ubsan_standalone_cxx
    106         ARCHS ${ARCHS_FOR_SYMBOLS}
    107         PARENT_TARGET ubsan
    108         EXTRA ubsan.syms.extra)
    109     endif()
    110   endif()
    111 endif()
    112 
    113 add_dependencies(compiler-rt ubsan)
    114