configurecompiler.cmake

   1 # Set initial flags for each configuration
   2
   3 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
   4 set(CMAKE_C_STANDARD 11)
   5 set(CMAKE_C_STANDARD_REQUIRED ON)
   6 set(CMAKE_CXX_STANDARD 11)
   7 set(CMAKE_CXX_STANDARD_REQUIRED ON)
   8
   9 set(CLR_DEFINES_DEBUG_INIT              DEBUG _DEBUG _DBG URTBLDENV_FRIENDLY=Checked BUILDENV_CHECKED=1)
  10 set(CLR_DEFINES_CHECKED_INIT            DEBUG _DEBUG _DBG URTBLDENV_FRIENDLY=Checked BUILDENV_CHECKED=1)
  11 set(CLR_DEFINES_RELEASE_INIT            NDEBUG URTBLDENV_FRIENDLY=Retail)
  12 set(CLR_DEFINES_RELWITHDEBINFO_INIT     NDEBUG URTBLDENV_FRIENDLY=Retail)
  13
  14 include(${CMAKE_CURRENT_LIST_DIR}/configureoptimization.cmake)
  15
  16 #----------------------------------------
  17 # Detect and set platform variable names
  18 #     - for non-windows build platform & architecture is detected using inbuilt CMAKE variables and cross target component configure
  19 #     - for windows we use the passed in parameter to CMAKE to determine build arch
  20 #----------------------------------------
  21 if(CMAKE_SYSTEM_NAME STREQUAL Linux)
  22     set(CLR_CMAKE_PLATFORM_UNIX 1)
  23     if(CLR_CROSS_COMPONENTS_BUILD)
  24         # CMAKE_HOST_SYSTEM_PROCESSOR returns the value of `uname -p` on host.
  25         if(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL x86_64 OR CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL amd64)
  26             if(CLR_CMAKE_TARGET_ARCH STREQUAL "arm" OR CLR_CMAKE_TARGET_ARCH STREQUAL "armel")
  27                 if($ENV{CROSSCOMPILE} STREQUAL "1")
  28                     set(CLR_CMAKE_PLATFORM_UNIX_X86 1)
  29                 else()
  30                     set(CLR_CMAKE_PLATFORM_UNIX_AMD64 1)
  31                 endif()
  32             else()
  33                 set(CLR_CMAKE_PLATFORM_UNIX_AMD64 1)
  34             endif()
  35         elseif(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL i686)
  36             set(CLR_CMAKE_PLATFORM_UNIX_X86 1)
  37         else()
  38             clr_unknown_arch()
  39         endif()
  40     else()
  41         # CMAKE_SYSTEM_PROCESSOR returns the value of `uname -p` on target.
  42         # For the AMD/Intel 64bit architecture two different strings are common.
  43         # Linux and Darwin identify it as "x86_64" while FreeBSD and netbsd uses the
  44         # "amd64" string. Accept either of the two here.
  45         if(CMAKE_SYSTEM_PROCESSOR STREQUAL x86_64 OR CMAKE_SYSTEM_PROCESSOR STREQUAL amd64)
  46             set(CLR_CMAKE_PLATFORM_UNIX_AMD64 1)
  47         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL armv7l)
  48             set(CLR_CMAKE_PLATFORM_UNIX_ARM 1)
  49         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL arm)
  50             set(CLR_CMAKE_PLATFORM_UNIX_ARM 1)
  51         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL aarch64)
  52             set(CLR_CMAKE_PLATFORM_UNIX_ARM64 1)
  53         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL i686)
  54             set(CLR_CMAKE_PLATFORM_UNIX_X86 1)
  55         else()
  56             clr_unknown_arch()
  57         endif()
  58     endif()
  59     set(CLR_CMAKE_PLATFORM_LINUX 1)
  60
  61     # Detect Linux ID
  62     if(DEFINED CLR_CMAKE_LINUX_ID)
  63         if(CLR_CMAKE_LINUX_ID STREQUAL ubuntu)
  64             set(CLR_CMAKE_TARGET_UBUNTU_LINUX 1)
  65         elseif(CLR_CMAKE_LINUX_ID STREQUAL tizen)
  66             set(CLR_CMAKE_TARGET_TIZEN_LINUX 1)
  67         elseif(CLR_CMAKE_LINUX_ID STREQUAL alpine)
  68             set(CLR_CMAKE_PLATFORM_ALPINE_LINUX 1)
  69         endif()
  70         if(CLR_CMAKE_LINUX_ID STREQUAL ubuntu)
  71             set(CLR_CMAKE_PLATFORM_UBUNTU_LINUX 1)
  72         endif()
  73     endif(DEFINED CLR_CMAKE_LINUX_ID)
  74 endif(CMAKE_SYSTEM_NAME STREQUAL Linux)
  75
  76 if(CMAKE_SYSTEM_NAME STREQUAL Darwin)
  77   set(CLR_CMAKE_PLATFORM_UNIX 1)
  78   set(CLR_CMAKE_PLATFORM_UNIX_AMD64 1)
  79   set(CLR_CMAKE_PLATFORM_DARWIN 1)
  80   set(CMAKE_ASM_COMPILE_OBJECT "${CMAKE_C_COMPILER} <FLAGS> <DEFINES> <INCLUDES> -o <OBJECT> -c <SOURCE>")
  81 endif(CMAKE_SYSTEM_NAME STREQUAL Darwin)
  82
  83 if(CMAKE_SYSTEM_NAME STREQUAL FreeBSD)
  84   set(CLR_CMAKE_PLATFORM_UNIX 1)
  85   set(CLR_CMAKE_PLATFORM_UNIX_AMD64 1)
  86   set(CLR_CMAKE_PLATFORM_FREEBSD 1)
  87 endif(CMAKE_SYSTEM_NAME STREQUAL FreeBSD)
  88
  89 if(CMAKE_SYSTEM_NAME STREQUAL OpenBSD)
  90   set(CLR_CMAKE_PLATFORM_UNIX 1)
  91   set(CLR_CMAKE_PLATFORM_UNIX_AMD64 1)
  92   set(CLR_CMAKE_PLATFORM_OPENBSD 1)
  93 endif(CMAKE_SYSTEM_NAME STREQUAL OpenBSD)
  94
  95 if(CMAKE_SYSTEM_NAME STREQUAL NetBSD)
  96   set(CLR_CMAKE_PLATFORM_UNIX 1)
  97   set(CLR_CMAKE_PLATFORM_UNIX_AMD64 1)
  98   set(CLR_CMAKE_PLATFORM_NETBSD 1)
  99 endif(CMAKE_SYSTEM_NAME STREQUAL NetBSD)
 100
 101 if(CMAKE_SYSTEM_NAME STREQUAL SunOS)
 102   set(CLR_CMAKE_PLATFORM_UNIX 1)
 103   EXECUTE_PROCESS(
 104     COMMAND isainfo -n
 105     OUTPUT_VARIABLE SUNOS_NATIVE_INSTRUCTION_SET
 106     )
 107   if(SUNOS_NATIVE_INSTRUCTION_SET MATCHES "amd64")
 108     set(CLR_CMAKE_PLATFORM_UNIX_AMD64 1)
 109     set(CMAKE_SYSTEM_PROCESSOR "amd64")
 110   else()
 111     clr_unknown_arch()
 112   endif()
 113   set(CLR_CMAKE_PLATFORM_SUNOS 1)
 114 endif(CMAKE_SYSTEM_NAME STREQUAL SunOS)
 115
 116 #--------------------------------------------
 117 # This repo builds two set of binaries
 118 # 1. binaries which execute on target arch machine
 119 #        - for such binaries host architecture & target architecture are same
 120 #        - eg. coreclr.dll
 121 # 2. binaries which execute on host machine but target another architecture
 122 #        - host architecture is different from target architecture
 123 #        - eg. crossgen.exe - runs on x64 machine and generates nis targeting arm64
 124 #        - for complete list of such binaries refer to file crosscomponents.cmake
 125 #-------------------------------------------------------------
 126 # Set HOST architecture variables
 127 if(CLR_CMAKE_PLATFORM_UNIX_ARM)
 128     set(CLR_CMAKE_PLATFORM_ARCH_ARM 1)
 129     set(CLR_CMAKE_HOST_ARCH "arm")
 130 elseif(CLR_CMAKE_PLATFORM_UNIX_ARM64)
 131     set(CLR_CMAKE_PLATFORM_ARCH_ARM64 1)
 132     set(CLR_CMAKE_HOST_ARCH "arm64")
 133 elseif(CLR_CMAKE_PLATFORM_UNIX_AMD64)
 134     set(CLR_CMAKE_PLATFORM_ARCH_AMD64 1)
 135     set(CLR_CMAKE_HOST_ARCH "x64")
 136 elseif(CLR_CMAKE_PLATFORM_UNIX_X86)
 137     set(CLR_CMAKE_PLATFORM_ARCH_I386 1)
 138     set(CLR_CMAKE_HOST_ARCH "x86")
 139 elseif(WIN32)
 140     # CLR_CMAKE_HOST_ARCH is passed in as param to cmake
 141     if (CLR_CMAKE_HOST_ARCH STREQUAL x64)
 142         set(CLR_CMAKE_PLATFORM_ARCH_AMD64 1)
 143     elseif(CLR_CMAKE_HOST_ARCH STREQUAL x86)
 144         set(CLR_CMAKE_PLATFORM_ARCH_I386 1)
 145     elseif(CLR_CMAKE_HOST_ARCH STREQUAL arm)
 146         set(CLR_CMAKE_PLATFORM_ARCH_ARM 1)
 147     elseif(CLR_CMAKE_HOST_ARCH STREQUAL arm64)
 148         set(CLR_CMAKE_PLATFORM_ARCH_ARM64 1)
 149     else()
 150         clr_unknown_arch()
 151     endif()
 152 endif()
 153
 154 # Set TARGET architecture variables
 155 # Target arch will be a cmake param (optional) for both windows as well as non-windows build
 156 # if target arch is not specified then host & target are same
 157 if(NOT DEFINED CLR_CMAKE_TARGET_ARCH OR CLR_CMAKE_TARGET_ARCH STREQUAL "" )
 158   set(CLR_CMAKE_TARGET_ARCH ${CLR_CMAKE_HOST_ARCH})
 159 endif()
 160
 161 # Set target architecture variables
 162 if (CLR_CMAKE_TARGET_ARCH STREQUAL x64)
 163     set(CLR_CMAKE_TARGET_ARCH_AMD64 1)
 164   elseif(CLR_CMAKE_TARGET_ARCH STREQUAL x86)
 165     set(CLR_CMAKE_TARGET_ARCH_I386 1)
 166   elseif(CLR_CMAKE_TARGET_ARCH STREQUAL arm64)
 167     set(CLR_CMAKE_TARGET_ARCH_ARM64 1)
 168   elseif(CLR_CMAKE_TARGET_ARCH STREQUAL arm)
 169     set(CLR_CMAKE_TARGET_ARCH_ARM 1)
 170   elseif(CLR_CMAKE_TARGET_ARCH STREQUAL armel)
 171     set(CLR_CMAKE_TARGET_ARCH_ARM 1)
 172     set(ARM_SOFTFP 1)
 173   else()
 174     clr_unknown_arch()
 175 endif()
 176
 177 # check if host & target arch combination are valid
 178 if(NOT(CLR_CMAKE_TARGET_ARCH STREQUAL CLR_CMAKE_HOST_ARCH))
 179     if(NOT((CLR_CMAKE_PLATFORM_ARCH_AMD64 AND CLR_CMAKE_TARGET_ARCH_ARM64) OR (CLR_CMAKE_PLATFORM_ARCH_I386 AND CLR_CMAKE_TARGET_ARCH_ARM) OR (CLR_CMAKE_PLATFORM_ARCH_AMD64 AND CLR_CMAKE_TARGET_ARCH_ARM)))
 180         message(FATAL_ERROR "Invalid host and target arch combination")
 181     endif()
 182 endif()
 183
 184 #-----------------------------------------------------
 185 # Initialize Cmake compiler flags and other variables
 186 #-----------------------------------------------------
 187
 188 if(WIN32)
 189     add_compile_options(/Zi /FC /Zc:strictStrings)
 190 elseif (CLR_CMAKE_PLATFORM_UNIX)
 191     add_compile_options(-g)
 192     add_compile_options(-Wall)
 193     if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
 194         add_compile_options(-Wno-null-conversion)
 195     else()
 196         add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-Werror=conversion-null>)
 197     endif()
 198 endif()
 199
 200 if (CMAKE_CONFIGURATION_TYPES) # multi-configuration generator?
 201     set(CMAKE_CONFIGURATION_TYPES "Debug;Checked;Release;RelWithDebInfo" CACHE STRING "" FORCE)
 202 endif (CMAKE_CONFIGURATION_TYPES)
 203
 204 set(CMAKE_C_FLAGS_CHECKED "")
 205 set(CMAKE_CXX_FLAGS_CHECKED "")
 206 set(CMAKE_EXE_LINKER_FLAGS_CHECKED "")
 207 set(CMAKE_SHARED_LINKER_FLAGS_CHECKED "")
 208
 209 set(CMAKE_CXX_STANDARD_LIBRARIES "") # do not link against standard win32 libs i.e. kernel32, uuid, user32, etc.
 210
 211 if (WIN32)
 212   # For multi-configuration toolset (as Visual Studio)
 213   # set the different configuration defines.
 214   foreach (Config DEBUG CHECKED RELEASE RELWITHDEBINFO)
 215     foreach (Definition IN LISTS CLR_DEFINES_${Config}_INIT)
 216       set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS $<$<CONFIG:${Config}>:${Definition}>)
 217     endforeach (Definition)
 218   endforeach (Config)
 219
 220   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /GUARD:CF")
 221   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /GUARD:CF")
 222
 223   # Linker flags
 224   #
 225   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /MANIFEST:NO") #Do not create Side-by-Side Assembly Manifest
 226
 227   if (CLR_CMAKE_PLATFORM_ARCH_ARM)
 228     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SUBSYSTEM:WINDOWS,6.02") #windows subsystem - arm minimum is 6.02
 229   elseif(CLR_CMAKE_PLATFORM_ARCH_ARM64)
 230     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SUBSYSTEM:WINDOWS,6.03") #windows subsystem - arm64 minimum is 6.03
 231   else ()
 232     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SUBSYSTEM:WINDOWS,6.01") #windows subsystem
 233   endif ()
 234
 235   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /LARGEADDRESSAWARE") # can handle addresses larger than 2 gigabytes
 236   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /NXCOMPAT") #Compatible with Data Execution Prevention
 237   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /DYNAMICBASE") #Use address space layout randomization
 238   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /PDBCOMPRESS") #shrink pdb size
 239   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /DEBUG")
 240   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /IGNORE:4197,4013,4254,4070,4221")
 241
 242   set(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} /IGNORE:4221")
 243
 244   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /DEBUG /PDBCOMPRESS")
 245   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /STACK:1572864")
 246
 247   # Temporarily disable incremental link due to incremental linking CFG bug crashing crossgen.
 248   # See https://github.com/dotnet/coreclr/issues/12592
 249   # This has been fixed in VS 2017 Update 5 but we're keeping this around until everyone is off
 250   # the versions that have the bug. The bug manifests itself as a bad crash.
 251   set(NO_INCREMENTAL_LINKER_FLAGS "/INCREMENTAL:NO")
 252
 253   # Debug build specific flags
 254   set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "/NOVCFEATURE ${NO_INCREMENTAL_LINKER_FLAGS}")
 255   set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${NO_INCREMENTAL_LINKER_FLAGS}")
 256
 257   # Checked build specific flags
 258   set(CMAKE_SHARED_LINKER_FLAGS_CHECKED "${CMAKE_SHARED_LINKER_FLAGS_CHECKED} /OPT:REF /OPT:NOICF /NOVCFEATURE ${NO_INCREMENTAL_LINKER_FLAGS}")
 259   set(CMAKE_STATIC_LINKER_FLAGS_CHECKED "${CMAKE_STATIC_LINKER_FLAGS_CHECKED}")
 260   set(CMAKE_EXE_LINKER_FLAGS_CHECKED "${CMAKE_EXE_LINKER_FLAGS_CHECKED} /OPT:REF /OPT:NOICF ${NO_INCREMENTAL_LINKER_FLAGS}")
 261
 262   # Release build specific flags
 263   set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /LTCG /OPT:REF /OPT:ICF ${NO_INCREMENTAL_LINKER_FLAGS}")
 264   set(CMAKE_STATIC_LINKER_FLAGS_RELEASE "${CMAKE_STATIC_LINKER_FLAGS_RELEASE} /LTCG")
 265   set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /LTCG /OPT:REF /OPT:ICF ${NO_INCREMENTAL_LINKER_FLAGS}")
 266
 267   # ReleaseWithDebugInfo build specific flags
 268   set(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO} /LTCG /OPT:REF /OPT:ICF ${NO_INCREMENTAL_LINKER_FLAGS}")
 269   set(CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO} /LTCG")
 270   set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} /LTCG /OPT:REF /OPT:ICF ${NO_INCREMENTAL_LINKER_FLAGS}")
 271
 272   # Force uCRT to be dynamically linked for Release build
 273   set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /NODEFAULTLIB:libucrt.lib /DEFAULTLIB:ucrt.lib")
 274   set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /NODEFAULTLIB:libucrt.lib /DEFAULTLIB:ucrt.lib")
 275   set(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO} /NODEFAULTLIB:libucrt.lib /DEFAULTLIB:ucrt.lib")
 276   set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} /NODEFAULTLIB:libucrt.lib /DEFAULTLIB:ucrt.lib")
 277
 278 elseif (CLR_CMAKE_PLATFORM_UNIX)
 279   # Set the values to display when interactively configuring CMAKE_BUILD_TYPE
 280   set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "DEBUG;CHECKED;RELEASE;RELWITHDEBINFO")
 281
 282   # Use uppercase CMAKE_BUILD_TYPE for the string comparisons below
 283   string(TOUPPER ${CMAKE_BUILD_TYPE} UPPERCASE_CMAKE_BUILD_TYPE)
 284
 285   # For single-configuration toolset
 286   # set the different configuration defines.
 287   if (UPPERCASE_CMAKE_BUILD_TYPE STREQUAL DEBUG)
 288     # First DEBUG
 289     set_property(DIRECTORY PROPERTY COMPILE_DEFINITIONS ${CLR_DEFINES_DEBUG_INIT})
 290   elseif (UPPERCASE_CMAKE_BUILD_TYPE STREQUAL CHECKED)
 291     # Then CHECKED
 292     set_property(DIRECTORY PROPERTY COMPILE_DEFINITIONS ${CLR_DEFINES_CHECKED_INIT})
 293   elseif (UPPERCASE_CMAKE_BUILD_TYPE STREQUAL RELEASE)
 294     # Then RELEASE
 295     set_property(DIRECTORY PROPERTY COMPILE_DEFINITIONS ${CLR_DEFINES_RELEASE_INIT})
 296   elseif (UPPERCASE_CMAKE_BUILD_TYPE STREQUAL RELWITHDEBINFO)
 297     # And then RELWITHDEBINFO
 298     set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS ${CLR_DEFINES_RELWITHDEBINFO_INIT})
 299   else ()
 300     message(FATAL_ERROR "Unknown build type! Set CMAKE_BUILD_TYPE to DEBUG, CHECKED, RELEASE, or RELWITHDEBINFO!")
 301   endif ()
 302
 303   # set the CLANG sanitizer flags for debug build
 304   if(UPPERCASE_CMAKE_BUILD_TYPE STREQUAL DEBUG OR UPPERCASE_CMAKE_BUILD_TYPE STREQUAL CHECKED)
 305     # obtain settings from running enablesanitizers.sh
 306     string(FIND "$ENV{DEBUG_SANITIZERS}" "asan" __ASAN_POS)
 307     string(FIND "$ENV{DEBUG_SANITIZERS}" "ubsan" __UBSAN_POS)
 308     if ((${__ASAN_POS} GREATER -1) OR (${__UBSAN_POS} GREATER -1))
 309       set(CLR_SANITIZE_CXX_FLAGS "${CLR_SANITIZE_CXX_FLAGS} -fsanitize-blacklist=${CMAKE_CURRENT_SOURCE_DIR}/sanitizerblacklist.txt -fsanitize=")
 310       set(CLR_SANITIZE_LINK_FLAGS "${CLR_SANITIZE_LINK_FLAGS} -fsanitize=")
 311       if (${__ASAN_POS} GREATER -1)
 312         set(CLR_SANITIZE_CXX_FLAGS "${CLR_SANITIZE_CXX_FLAGS}address,")
 313         set(CLR_SANITIZE_LINK_FLAGS "${CLR_SANITIZE_LINK_FLAGS}address,")
 314         add_definitions(-DHAS_ASAN)
 315         message("Address Sanitizer (asan) enabled")
 316       endif ()
 317       if (${__UBSAN_POS} GREATER -1)
 318         # all sanitizier flags are enabled except alignment (due to heavy use of __unaligned modifier)
 319         set(CLR_SANITIZE_CXX_FLAGS "${CLR_SANITIZE_CXX_FLAGS}bool,bounds,enum,float-cast-overflow,float-divide-by-zero,function,integer,nonnull-attribute,null,object-size,return,returns-nonnull-attribute,shift,unreachable,vla-bound,vptr")
 320         set(CLR_SANITIZE_LINK_FLAGS "${CLR_SANITIZE_LINK_FLAGS}undefined")
 321         message("Undefined Behavior Sanitizer (ubsan) enabled")
 322       endif ()
 323
 324       # -fdata-sections -ffunction-sections: each function has own section instead of one per .o file (needed for --gc-sections)
 325       # -fPIC: enable Position Independent Code normally just for shared libraries but required when linking with address sanitizer
 326       # -O1: optimization level used instead of -O0 to avoid compile error "invalid operand for inline asm constraint"
 327       set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${CLR_SANITIZE_CXX_FLAGS} -fdata-sections -ffunction-sections -fPIC -O1")
 328       set(CMAKE_CXX_FLAGS_CHECKED "${CMAKE_CXX_FLAGS_CHECKED} ${CLR_SANITIZE_CXX_FLAGS} -fdata-sections -ffunction-sections -fPIC -O1")
 329
 330       set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${CLR_SANITIZE_LINK_FLAGS}")
 331       set(CMAKE_EXE_LINKER_FLAGS_CHECKED "${CMAKE_EXE_LINKER_FLAGS_CHECKED} ${CLR_SANITIZE_LINK_FLAGS}")
 332
 333       # -Wl and --gc-sections: drop unused sections\functions (similar to Windows /Gy function-level-linking)
 334       set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG} ${CLR_SANITIZE_LINK_FLAGS} -Wl,--gc-sections")
 335       set(CMAKE_SHARED_LINKER_FLAGS_CHECKED "${CMAKE_SHARED_LINKER_FLAGS_CHECKED} ${CLR_SANITIZE_LINK_FLAGS} -Wl,--gc-sections")
 336     endif ()
 337   endif(UPPERCASE_CMAKE_BUILD_TYPE STREQUAL DEBUG OR UPPERCASE_CMAKE_BUILD_TYPE STREQUAL CHECKED)
 338 endif(WIN32)
 339
 340 # CLR_ADDITIONAL_LINKER_FLAGS - used for passing additional arguments to linker
 341 # CLR_ADDITIONAL_COMPILER_OPTIONS - used for passing additional arguments to compiler
 342 #
 343 # For example:
 344 #       ./build-native.sh cmakeargs "-DCLR_ADDITIONAL_COMPILER_OPTIONS=<...>" cmakeargs "-DCLR_ADDITIONAL_LINKER_FLAGS=<...>"
 345 #
 346 if(CLR_CMAKE_PLATFORM_UNIX)
 347     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${CLR_ADDITIONAL_LINKER_FLAGS}")
 348     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${CLR_ADDITIONAL_LINKER_FLAGS}" )
 349 endif(CLR_CMAKE_PLATFORM_UNIX)
 350
 351 if(CLR_CMAKE_PLATFORM_LINUX)
 352   set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -Wa,--noexecstack")
 353   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--build-id=sha1")
 354   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--build-id=sha1")
 355 endif(CLR_CMAKE_PLATFORM_LINUX)
 356 if(CLR_CMAKE_PLATFORM_FREEBSD)
 357   set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -Wa,--noexecstack")
 358   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fuse-ld=lld -Xlinker --build-id=sha1")
 359   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=lld -Xlinker --build-id=sha1")
 360 endif(CLR_CMAKE_PLATFORM_FREEBSD)
 361
 362 #------------------------------------
 363 # Definitions (for platform)
 364 #-----------------------------------
 365 if (CLR_CMAKE_PLATFORM_ARCH_AMD64)
 366   add_definitions(-D_AMD64_)
 367   add_definitions(-D_WIN64)
 368   add_definitions(-DAMD64)
 369   add_definitions(-DBIT64)
 370 elseif (CLR_CMAKE_PLATFORM_ARCH_I386)
 371   add_definitions(-D_X86_)
 372 elseif (CLR_CMAKE_PLATFORM_ARCH_ARM)
 373   add_definitions(-D_ARM_)
 374   add_definitions(-DARM)
 375 elseif (CLR_CMAKE_PLATFORM_ARCH_ARM64)
 376   add_definitions(-D_ARM64_)
 377   add_definitions(-DARM64)
 378   add_definitions(-D_WIN64)
 379   add_definitions(-DBIT64)
 380 else ()
 381   clr_unknown_arch()
 382 endif ()
 383
 384 if (CLR_CMAKE_PLATFORM_UNIX)
 385   if(CLR_CMAKE_PLATFORM_LINUX)
 386     if(CLR_CMAKE_PLATFORM_UNIX_AMD64)
 387       message("Detected Linux x86_64")
 388       add_definitions(-DLINUX64)
 389     elseif(CLR_CMAKE_PLATFORM_UNIX_ARM)
 390       message("Detected Linux ARM")
 391       add_definitions(-DLINUX32)
 392     elseif(CLR_CMAKE_PLATFORM_UNIX_ARM64)
 393       message("Detected Linux ARM64")
 394       add_definitions(-DLINUX64)
 395     elseif(CLR_CMAKE_PLATFORM_UNIX_X86)
 396       message("Detected Linux i686")
 397       add_definitions(-DLINUX32)
 398     else()
 399       clr_unknown_arch()
 400     endif()
 401   endif(CLR_CMAKE_PLATFORM_LINUX)
 402 endif(CLR_CMAKE_PLATFORM_UNIX)
 403
 404 if (CLR_CMAKE_PLATFORM_UNIX)
 405   add_definitions(-DPLATFORM_UNIX)
 406
 407   if(CLR_CMAKE_PLATFORM_DARWIN)
 408     message("Detected OSX x86_64")
 409   endif(CLR_CMAKE_PLATFORM_DARWIN)
 410
 411   if(CLR_CMAKE_PLATFORM_FREEBSD)
 412     message("Detected FreeBSD amd64")
 413   endif(CLR_CMAKE_PLATFORM_FREEBSD)
 414
 415   if(CLR_CMAKE_PLATFORM_NETBSD)
 416     message("Detected NetBSD amd64")
 417   endif(CLR_CMAKE_PLATFORM_NETBSD)
 418 endif(CLR_CMAKE_PLATFORM_UNIX)
 419
 420 if (WIN32)
 421   add_definitions(-DPLATFORM_WINDOWS)
 422
 423   # Define the CRT lib references that link into Desktop imports
 424   set(STATIC_MT_CRT_LIB  "libcmt$<$<OR:$<CONFIG:Debug>,$<CONFIG:Checked>>:d>.lib")
 425   set(STATIC_MT_VCRT_LIB  "libvcruntime$<$<OR:$<CONFIG:Debug>,$<CONFIG:Checked>>:d>.lib")
 426   set(STATIC_MT_CPP_LIB  "libcpmt$<$<OR:$<CONFIG:Debug>,$<CONFIG:Checked>>:d>.lib")
 427 endif(WIN32)
 428
 429 # Architecture specific files folder name
 430 if (CLR_CMAKE_TARGET_ARCH_AMD64)
 431     set(ARCH_SOURCES_DIR amd64)
 432 elseif (CLR_CMAKE_TARGET_ARCH_ARM64)
 433     set(ARCH_SOURCES_DIR arm64)
 434 elseif (CLR_CMAKE_TARGET_ARCH_ARM)
 435     set(ARCH_SOURCES_DIR arm)
 436 elseif (CLR_CMAKE_TARGET_ARCH_I386)
 437     set(ARCH_SOURCES_DIR i386)
 438 else ()
 439     clr_unknown_arch()
 440 endif ()
 441
 442 #--------------------------------------
 443 # Compile Options
 444 #--------------------------------------
 445 if (CLR_CMAKE_PLATFORM_UNIX)
 446   # Disable frame pointer optimizations so profilers can get better call stacks
 447   add_compile_options(-fno-omit-frame-pointer)
 448
 449   # The -fms-extensions enable the stuff like __if_exists, __declspec(uuid()), etc.
 450   add_compile_options(-fms-extensions )
 451   #-fms-compatibility      Enable full Microsoft Visual C++ compatibility
 452   #-fms-extensions         Accept some non-standard constructs supported by the Microsoft compiler
 453
 454   # Make signed arithmetic overflow of addition, subtraction, and multiplication wrap around
 455   # using twos-complement representation (this is normally undefined according to the C++ spec).
 456   add_compile_options(-fwrapv)
 457
 458   if(CLR_CMAKE_PLATFORM_DARWIN)
 459     # We cannot enable "stack-protector-strong" on OS X due to a bug in clang compiler (current version 7.0.2)
 460     add_compile_options(-fstack-protector)
 461   else()
 462     add_compile_options(-fstack-protector-strong)
 463   endif(CLR_CMAKE_PLATFORM_DARWIN)
 464
 465   # Contracts are disabled on UNIX.
 466   add_definitions(-DDISABLE_CONTRACTS)
 467
 468   if (CLR_CMAKE_WARNINGS_ARE_ERRORS)
 469     # All warnings that are not explicitly disabled are reported as errors
 470     add_compile_options(-Werror)
 471   endif(CLR_CMAKE_WARNINGS_ARE_ERRORS)
 472
 473   # Disabled common warnings
 474   add_compile_options(-Wno-unused-variable)
 475   add_compile_options(-Wno-unused-value)
 476   add_compile_options(-Wno-unused-function)
 477
 478   #These seem to indicate real issues
 479   add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-Wno-invalid-offsetof>)
 480
 481   if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
 482     # The -ferror-limit is helpful during the porting, it makes sure the compiler doesn't stop
 483     # after hitting just about 20 errors.
 484     add_compile_options(-ferror-limit=4096)
 485
 486     # Disabled warnings
 487     add_compile_options(-Wno-unused-private-field)
 488     # Explicit constructor calls are not supported by clang (this->ClassName::ClassName())
 489     add_compile_options(-Wno-microsoft)
 490     # This warning is caused by comparing 'this' to NULL
 491     add_compile_options(-Wno-tautological-compare)
 492     # There are constants of type BOOL used in a condition. But BOOL is defined as int
 493     # and so the compiler thinks that there is a mistake.
 494     add_compile_options(-Wno-constant-logical-operand)
 495     # We use pshpack1/2/4/8.h and poppack.h headers to set and restore packing. However
 496     # clang 6.0 complains when the packing change lifetime is not contained within
 497     # a header file.
 498     add_compile_options(-Wno-pragma-pack)
 499
 500     add_compile_options(-Wno-unknown-warning-option)
 501
 502     # The following warning indicates that an attribute __attribute__((__ms_struct__)) was applied
 503     # to a struct or a class that has virtual members or a base class. In that case, clang
 504     # may not generate the same object layout as MSVC.
 505     add_compile_options(-Wno-incompatible-ms-struct)
 506   else()
 507     add_compile_options(-Wno-unused-variable)
 508     add_compile_options(-Wno-unused-but-set-variable)
 509     add_compile_options(-fms-extensions)
 510     add_compile_options(-Wno-unknown-pragmas)
 511     if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0)
 512       add_compile_options(-Wno-nonnull-compare)
 513     endif()
 514     if (COMPILER_SUPPORTS_F_ALIGNED_NEW)
 515       add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-faligned-new>)
 516     endif()
 517   endif()
 518
 519   # Some architectures (e.g., ARM) assume char type is unsigned while CoreCLR assumes char is signed
 520   # as x64 does. It has been causing issues in ARM (https://github.com/dotnet/coreclr/issues/4746)
 521   add_compile_options(-fsigned-char)
 522
 523   # We mark the function which needs exporting with DLLEXPORT
 524   add_compile_options(-fvisibility=hidden)
 525
 526   # Specify the minimum supported version of macOS
 527   if(CLR_CMAKE_PLATFORM_DARWIN)
 528     set(MACOS_VERSION_MIN_FLAGS "-mmacosx-version-min=10.12")
 529     add_compile_options("${MACOS_VERSION_MIN_FLAGS}")
 530     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${MACOS_VERSION_MIN_FLAGS}")
 531     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${MACOS_VERSION_MIN_FLAGS}")
 532   endif(CLR_CMAKE_PLATFORM_DARWIN)
 533 endif(CLR_CMAKE_PLATFORM_UNIX)
 534
 535 if(CLR_CMAKE_PLATFORM_UNIX_ARM)
 536    # Because we don't use CMAKE_C_COMPILER/CMAKE_CXX_COMPILER to use clang
 537    # we have to set the triple by adding a compiler argument
 538    add_compile_options(-mthumb)
 539    add_compile_options(-mfpu=vfpv3)
 540    if(ARM_SOFTFP)
 541      add_definitions(-DARM_SOFTFP)
 542      add_compile_options(-mfloat-abi=softfp)
 543      if("$ENV{__DistroRid}" MATCHES "tizen.*")
 544       add_compile_options(-target armv7l-tizen-linux-gnueabi)
 545      else()
 546       add_compile_options(-march=armv7-a)
 547      endif()
 548    else()
 549     add_compile_options(-march=armv7-a)
 550    endif(ARM_SOFTFP)
 551 endif(CLR_CMAKE_PLATFORM_UNIX_ARM)
 552
 553 if(CLR_CMAKE_PLATFORM_UNIX)
 554   add_compile_options(${CLR_ADDITIONAL_COMPILER_OPTIONS})
 555 endif(CLR_CMAKE_PLATFORM_UNIX)
 556
 557 if (WIN32)
 558   # Compile options for targeting windows
 559
 560   # The following options are set by the razzle build
 561   add_compile_options(/TP) # compile all files as C++
 562   add_compile_options(/d2Zi+) # make optimized builds debugging easier
 563   add_compile_options(/nologo) # Suppress Startup Banner
 564   add_compile_options(/W3) # set warning level to 3
 565   add_compile_options(/WX) # treat warnings as errors
 566   add_compile_options(/Oi) # enable intrinsics
 567   add_compile_options(/Oy-) # disable suppressing of the creation of frame pointers on the call stack for quicker function calls
 568   add_compile_options(/U_MT) # undefine the predefined _MT macro
 569   add_compile_options(/GF) # enable read-only string pooling
 570   add_compile_options(/Gm-) # disable minimal rebuild
 571   add_compile_options(/EHa) # enable C++ EH (w/ SEH exceptions)
 572   add_compile_options(/Zp8) # pack structs on 8-byte boundary
 573   add_compile_options(/Gy) # separate functions for linker
 574   add_compile_options(/Zc:wchar_t-) # C++ language conformance: wchar_t is NOT the native type, but a typedef
 575   add_compile_options(/Zc:forScope) # C++ language conformance: enforce Standard C++ for scoping rules
 576   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-") # disable C++ RTTI
 577   add_compile_options(/FC) # use full pathnames in diagnostics
 578   add_compile_options(/MP) # Build with Multiple Processes (number of processes equal to the number of processors)
 579   add_compile_options(/GS) # Buffer Security Check
 580   add_compile_options(/Zm200) # Specify Precompiled Header Memory Allocation Limit of 150MB
 581   add_compile_options(/wd4960 /wd4961 /wd4603 /wd4627 /wd4838 /wd4456 /wd4457 /wd4458 /wd4459 /wd4091 /we4640)
 582   add_compile_options(/Zi) # enable debugging information
 583   add_compile_options(/ZH:SHA_256) # use SHA256 for generating hashes of compiler processed source files.
 584   add_compile_options(/source-charset:utf-8) # Force MSVC to compile source as UTF-8.
 585
 586   if (CLR_CMAKE_PLATFORM_ARCH_I386)
 587     add_compile_options(/Gz)
 588   endif (CLR_CMAKE_PLATFORM_ARCH_I386)
 589
 590   add_compile_options($<$<OR:$<CONFIG:Release>,$<CONFIG:Relwithdebinfo>>:/GL>)
 591   add_compile_options($<$<OR:$<OR:$<CONFIG:Release>,$<CONFIG:Relwithdebinfo>>,$<CONFIG:Checked>>:/O1>)
 592
 593   if (CLR_CMAKE_PLATFORM_ARCH_AMD64)
 594   # The generator expression in the following command means that the /homeparams option is added only for debug builds
 595   add_compile_options($<$<CONFIG:Debug>:/homeparams>) # Force parameters passed in registers to be written to the stack
 596   endif (CLR_CMAKE_PLATFORM_ARCH_AMD64)
 597
 598   # enable control-flow-guard support for native components for non-Arm64 builds
 599   # Added using variables instead of add_compile_options to let individual projects override it
 600   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /guard:cf")
 601   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /guard:cf")
 602
 603   # Statically linked CRT (libcmt[d].lib, libvcruntime[d].lib and libucrt[d].lib) by default. This is done to avoid
 604   # linking in VCRUNTIME140.DLL for a simplified xcopy experience by reducing the dependency on VC REDIST.
 605   #
 606   # For Release builds, we shall dynamically link into uCRT [ucrtbase.dll] (which is pushed down as a Windows Update on downlevel OS) but
 607   # wont do the same for debug/checked builds since ucrtbased.dll is not redistributable and Debug/Checked builds are not
 608   # production-time scenarios.
 609   add_compile_options($<$<OR:$<CONFIG:Release>,$<CONFIG:Relwithdebinfo>>:/MT>)
 610   add_compile_options($<$<OR:$<CONFIG:Debug>,$<CONFIG:Checked>>:/MTd>)
 611
 612   set(CMAKE_ASM_MASM_FLAGS "${CMAKE_ASM_MASM_FLAGS} /ZH:SHA_256")
 613
 614   if (CLR_CMAKE_TARGET_ARCH_ARM OR CLR_CMAKE_TARGET_ARCH_ARM64)
 615     # Contracts work too slow on ARM/ARM64 DEBUG/CHECKED.
 616     add_definitions(-DDISABLE_CONTRACTS)
 617   endif (CLR_CMAKE_TARGET_ARCH_ARM OR CLR_CMAKE_TARGET_ARCH_ARM64)
 618
 619 endif (WIN32)
 620
 621 if(CLR_CMAKE_ENABLE_CODE_COVERAGE)
 622
 623   if(CLR_CMAKE_PLATFORM_UNIX)
 624     string(TOUPPER ${CMAKE_BUILD_TYPE} UPPERCASE_CMAKE_BUILD_TYPE)
 625     if(NOT UPPERCASE_CMAKE_BUILD_TYPE STREQUAL DEBUG)
 626       message( WARNING "Code coverage results with an optimised (non-Debug) build may be misleading" )
 627     endif(NOT UPPERCASE_CMAKE_BUILD_TYPE STREQUAL DEBUG)
 628
 629     add_compile_options(-fprofile-arcs)
 630     add_compile_options(-ftest-coverage)
 631     set(CLANG_COVERAGE_LINK_FLAGS  "--coverage")
 632     set(CMAKE_SHARED_LINKER_FLAGS  "${CMAKE_SHARED_LINKER_FLAGS} ${CLANG_COVERAGE_LINK_FLAGS}")
 633     set(CMAKE_EXE_LINKER_FLAGS     "${CMAKE_EXE_LINKER_FLAGS} ${CLANG_COVERAGE_LINK_FLAGS}")
 634   else()
 635     message(FATAL_ERROR "Code coverage builds not supported on current platform")
 636   endif(CLR_CMAKE_PLATFORM_UNIX)
 637
 638 endif(CLR_CMAKE_ENABLE_CODE_COVERAGE)