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      1 cmake_minimum_required (VERSION 2.8.10)
      2 
      3 project (BoringSSL)
      4 
      5 if(ANDROID)
      6   # Android-NDK CMake files reconfigure the path and so Go and Perl won't be
      7   # found. However, ninja will still find them in $PATH if we just name them.
      8   set(PERL_EXECUTABLE "perl")
      9   set(GO_EXECUTABLE "go")
     10 else()
     11   find_package(Perl REQUIRED)
     12   find_program(GO_EXECUTABLE go)
     13 endif()
     14 
     15 if (NOT GO_EXECUTABLE)
     16   message(FATAL_ERROR "Could not find Go")
     17 endif()
     18 
     19 if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     20   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Werror -Wsign-compare -Wmissing-field-initializers -ggdb -fvisibility=hidden")
     21   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror -Wsign-compare -Wmissing-field-initializers -ggdb -std=c++0x -fvisibility=hidden")
     22 elseif(MSVC)
     23   set(MSVC_DISABLED_WARNINGS_LIST
     24       "C4100" # 'exarg' : unreferenced formal parameter
     25       "C4127" # conditional expression is constant
     26       "C4200" # nonstandard extension used : zero-sized array in
     27               # struct/union.
     28       "C4242" # 'function' : conversion from 'int' to 'uint8_t',
     29               # possible loss of data
     30       "C4244" # 'function' : conversion from 'int' to 'uint8_t',
     31               # possible loss of data
     32       "C4245" # 'initializing' : conversion from 'long' to
     33               # 'unsigned long', signed/unsigned mismatch
     34       "C4267" # conversion from 'size_t' to 'int', possible loss of data
     35       "C4371" # layout of class may have changed from a previous version of the
     36               # compiler due to better packing of member '...'
     37       "C4388" # signed/unsigned mismatch
     38       "C4296" # '>=' : expression is always true
     39       "C4350" # behavior change: 'std::_Wrap_alloc...'
     40       "C4365" # '=' : conversion from 'size_t' to 'int',
     41               # signed/unsigned mismatch
     42       "C4389" # '!=' : signed/unsigned mismatch
     43       "C4510" # 'argument' : default constructor could not be generated
     44       "C4512" # 'argument' : assignment operator could not be generated
     45       "C4514" # 'function': unreferenced inline function has been removed
     46       "C4548" # expression before comma has no effect; expected expression with
     47               # side-effect" caused by FD_* macros.
     48       "C4610" # struct 'argument' can never be instantiated - user defined
     49               # constructor required.
     50       "C4625" # copy constructor could not be generated because a base class
     51               # copy constructor is inaccessible or deleted
     52       "C4626" # assignment operator could not be generated because a base class
     53               # assignment operator is inaccessible or deleted
     54       "C4706" # assignment within conditional expression
     55       "C4710" # 'function': function not inlined
     56       "C4711" # function 'function' selected for inline expansion
     57       "C4800" # 'int' : forcing value to bool 'true' or 'false'
     58               # (performance warning)
     59       "C4820" # 'bytes' bytes padding added after construct 'member_name'
     60       "C4996" # 'read': The POSIX name for this item is deprecated. Instead,
     61               # use the ISO C++ conformant name: _read.
     62      )
     63   string(REPLACE "C" " -wd" MSVC_DISABLED_WARNINGS_STR
     64                             ${MSVC_DISABLED_WARNINGS_LIST})
     65   set(CMAKE_C_FLAGS   "-Wall -WX ${MSVC_DISABLED_WARNINGS_STR}")
     66   set(CMAKE_CXX_FLAGS "-Wall -WX ${MSVC_DISABLED_WARNINGS_STR}")
     67   add_definitions(-D_HAS_EXCEPTIONS=0)
     68   add_definitions(-DWIN32_LEAN_AND_MEAN)
     69   add_definitions(-DNOMINMAX)
     70 endif()
     71 
     72 if((CMAKE_COMPILER_IS_GNUCXX AND CMAKE_C_COMPILER_VERSION VERSION_GREATER "4.7.99") OR
     73    CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     74   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow")
     75   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wshadow")
     76 endif()
     77 
     78 if((CMAKE_COMPILER_IS_GNUCXX AND CMAKE_C_COMPILER_VERSION VERSION_GREATER "4.8.99") OR
     79    CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     80  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11 -D_XOPEN_SOURCE=700")
     81 endif()
     82 
     83 if(FUZZ)
     84   if(!CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     85     message("You need to build with Clang for fuzzing to work")
     86   endif()
     87 
     88   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address -fsanitize-coverage=edge,indirect-calls")
     89   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fsanitize-coverage=edge,indirect-calls")
     90   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
     91   link_directories(.)
     92 endif()
     93 
     94 add_definitions(-DBORINGSSL_IMPLEMENTATION)
     95 
     96 if (BUILD_SHARED_LIBS)
     97   add_definitions(-DBORINGSSL_SHARED_LIBRARY)
     98   # Enable position-independent code globally. This is needed because
     99   # some library targets are OBJECT libraries.
    100   set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
    101 endif()
    102 
    103 if (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
    104   set(ARCH "x86_64")
    105 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "amd64")
    106   set(ARCH "x86_64")
    107 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "AMD64")
    108   # cmake reports AMD64 on Windows, but we might be building for 32-bit.
    109   if (CMAKE_CL_64)
    110     set(ARCH "x86_64")
    111   else()
    112     set(ARCH "x86")
    113   endif()
    114 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86")
    115   set(ARCH "x86")
    116 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "i386")
    117   set(ARCH "x86")
    118 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "i686")
    119   set(ARCH "x86")
    120 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "arm")
    121   set(ARCH "arm")
    122 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "armv6")
    123   set(ARCH "arm")
    124 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "armv7-a")
    125   set(ARCH "arm")
    126 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64")
    127   set(ARCH "aarch64")
    128 else()
    129   message(FATAL_ERROR "Unknown processor:" ${CMAKE_SYSTEM_PROCESSOR})
    130 endif()
    131 
    132 if (ANDROID AND ${ARCH} STREQUAL "arm")
    133   # The Android-NDK CMake files somehow fail to set the -march flag for
    134   # assembly files. Without this flag, the compiler believes that it's
    135   # building for ARMv5.
    136   set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -march=${CMAKE_SYSTEM_PROCESSOR}")
    137 endif()
    138 
    139 if (${ARCH} STREQUAL "x86" AND APPLE)
    140   # With CMake 2.8.x, ${CMAKE_SYSTEM_PROCESSOR} evalutes to i386 on OS X,
    141   # but clang defaults to 64-bit builds on OS X unless otherwise told.
    142   # Set ARCH to x86_64 so clang and CMake agree. This is fixed in CMake 3.
    143   set(ARCH "x86_64")
    144 endif()
    145 
    146 if (OPENSSL_NO_ASM)
    147   add_definitions(-DOPENSSL_NO_ASM)
    148   set(ARCH "generic")
    149 endif()
    150 
    151 # Declare a dummy target to build all unit tests. Test targets should inject
    152 # themselves as dependencies next to the target definition.
    153 add_custom_target(all_tests)
    154 
    155 add_subdirectory(crypto)
    156 add_subdirectory(ssl)
    157 add_subdirectory(ssl/test)
    158 add_subdirectory(tool)
    159 add_subdirectory(decrepit)
    160 
    161 if(FUZZ)
    162   add_subdirectory(fuzz)
    163 endif()
    164 
    165 if (NOT ${CMAKE_VERSION} VERSION_LESS "3.2")
    166   # USES_TERMINAL is only available in CMake 3.2 or later.
    167   set(MAYBE_USES_TERMINAL USES_TERMINAL)
    168 endif()
    169 
    170 add_custom_target(
    171     run_tests
    172     COMMAND ${GO_EXECUTABLE} run util/all_tests.go -build-dir
    173             ${CMAKE_BINARY_DIR}
    174     COMMAND cd ssl/test/runner
    175     COMMAND ${GO_EXECUTABLE} test -shim-path $<TARGET_FILE:bssl_shim>
    176     WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
    177     DEPENDS all_tests bssl_shim
    178     ${MAYBE_USES_TERMINAL})
    179