1 if (CLR_CMAKE_PLATFORM_UNIX)
2 # Disable frame pointer optimizations so profilers can get better call stacks
3 add_compile_options(-fno-omit-frame-pointer)
5 # The -fms-extensions enable the stuff like __if_exists, __declspec(uuid()), etc.
6 add_compile_options(-fms-extensions )
7 #-fms-compatibility Enable full Microsoft Visual C++ compatibility
8 #-fms-extensions Accept some non-standard constructs supported by the Microsoft compiler
10 # Make signed arithmetic overflow of addition, subtraction, and multiplication wrap around
11 # using twos-complement representation (this is normally undefined according to the C++ spec).
12 add_compile_options(-fwrapv)
14 if(CLR_CMAKE_PLATFORM_DARWIN)
15 # We cannot enable "stack-protector-strong" on OS X due to a bug in clang compiler (current version 7.0.2)
16 add_compile_options(-fstack-protector)
18 if(NOT CLR_CMAKE_PLATFORM_ARCH_I386)
19 # x86 unwinder cannot handle stack protection code, yet
20 # see https://github.com/dotnet/coreclr/issues/8625 for details
21 add_compile_options(-fstack-protector-strong)
22 endif(NOT CLR_CMAKE_PLATFORM_ARCH_I386)
23 endif(CLR_CMAKE_PLATFORM_DARWIN)
25 add_definitions(-DDISABLE_CONTRACTS)
26 # The -ferror-limit is helpful during the porting, it makes sure the compiler doesn't stop
27 # after hitting just about 20 errors.
28 add_compile_options(-ferror-limit=4096)
30 # All warnings that are not explicitly disabled are reported as errors
31 add_compile_options(-Werror)
34 add_compile_options(-Wno-unused-private-field)
35 add_compile_options(-Wno-unused-variable)
36 # Explicit constructor calls are not supported by clang (this->ClassName::ClassName())
37 add_compile_options(-Wno-microsoft)
38 # This warning is caused by comparing 'this' to NULL
39 add_compile_options(-Wno-tautological-compare)
40 # There are constants of type BOOL used in a condition. But BOOL is defined as int
41 # and so the compiler thinks that there is a mistake.
42 add_compile_options(-Wno-constant-logical-operand)
44 add_compile_options(-Wno-unknown-warning-option)
46 #These seem to indicate real issues
47 add_compile_options(-Wno-invalid-offsetof)
48 # The following warning indicates that an attribute __attribute__((__ms_struct__)) was applied
49 # to a struct or a class that has virtual members or a base class. In that case, clang
50 # may not generate the same object layout as MSVC.
51 add_compile_options(-Wno-incompatible-ms-struct)
53 # Some architectures (e.g., ARM) assume char type is unsigned while CoreCLR assumes char is signed
54 # as x64 does. It has been causing issues in ARM (https://github.com/dotnet/coreclr/issues/4746)
55 add_compile_options(-fsigned-char)
56 endif(CLR_CMAKE_PLATFORM_UNIX)
58 if(CLR_CMAKE_PLATFORM_UNIX_ARM)
59 # Because we don't use CMAKE_C_COMPILER/CMAKE_CXX_COMPILER to use clang
60 # we have to set the triple by adding a compiler argument
61 add_compile_options(-mthumb)
62 add_compile_options(-mfpu=vfpv3)
64 add_definitions(-DARM_SOFTFP)
65 add_compile_options(-mfloat-abi=softfp)
66 add_compile_options(-target armv7-linux-gnueabi)
68 add_compile_options(-target armv7-linux-gnueabihf)
70 endif(CLR_CMAKE_PLATFORM_UNIX_ARM)
73 # Compile options for targeting windows
75 # The following options are set by the razzle build
76 add_compile_options(/TP) # compile all files as C++
77 add_compile_options(/d2Zi+) # make optimized builds debugging easier
78 add_compile_options(/nologo) # Suppress Startup Banner
79 add_compile_options(/W3) # set warning level to 3
80 add_compile_options(/WX) # treat warnings as errors
81 add_compile_options(/Oi) # enable intrinsics
82 add_compile_options(/Oy-) # disable suppressing of the creation of frame pointers on the call stack for quicker function calls
83 add_compile_options(/U_MT) # undefine the predefined _MT macro
84 add_compile_options(/GF) # enable read-only string pooling
85 add_compile_options(/Gm-) # disable minimal rebuild
86 add_compile_options(/EHa) # enable C++ EH (w/ SEH exceptions)
87 add_compile_options(/Zp8) # pack structs on 8-byte boundary
88 add_compile_options(/Gy) # separate functions for linker
89 add_compile_options(/Zc:wchar_t-) # C++ language conformance: wchar_t is NOT the native type, but a typedef
90 add_compile_options(/Zc:forScope) # C++ language conformance: enforce Standard C++ for scoping rules
91 add_compile_options(/GR-) # disable C++ RTTI
92 add_compile_options(/FC) # use full pathnames in diagnostics
93 add_compile_options(/MP) # Build with Multiple Processes (number of processes equal to the number of processors)
94 add_compile_options(/GS) # Buffer Security Check
95 add_compile_options(/Zm200) # Specify Precompiled Header Memory Allocation Limit of 150MB
96 add_compile_options(/wd4960 /wd4961 /wd4603 /wd4627 /wd4838 /wd4456 /wd4457 /wd4458 /wd4459 /wd4091 /we4640)
97 add_compile_options(/Zi) # enable debugging information
98 add_compile_options(/ZH:SHA_256) # use SHA256 for generating hashes of compiler processed source files.
100 if (CLR_CMAKE_PLATFORM_ARCH_I386)
101 add_compile_options(/Gz)
102 endif (CLR_CMAKE_PLATFORM_ARCH_I386)
104 add_compile_options($<$<OR:$<CONFIG:Release>,$<CONFIG:Relwithdebinfo>>:/GL>)
105 add_compile_options($<$<OR:$<OR:$<CONFIG:Release>,$<CONFIG:Relwithdebinfo>>,$<CONFIG:Checked>>:/O1>)
107 if (CLR_CMAKE_PLATFORM_ARCH_AMD64)
108 # The generator expression in the following command means that the /homeparams option is added only for debug builds
109 add_compile_options($<$<CONFIG:Debug>:/homeparams>) # Force parameters passed in registers to be written to the stack
110 endif (CLR_CMAKE_PLATFORM_ARCH_AMD64)
112 # enable control-flow-guard support for native components for non-Arm64 builds
113 add_compile_options(/guard:cf)
115 # Statically linked CRT (libcmt[d].lib, libvcruntime[d].lib and libucrt[d].lib) by default. This is done to avoid
116 # linking in VCRUNTIME140.DLL for a simplified xcopy experience by reducing the dependency on VC REDIST.
118 # For Release builds, we shall dynamically link into uCRT [ucrtbase.dll] (which is pushed down as a Windows Update on downlevel OS) but
119 # wont do the same for debug/checked builds since ucrtbased.dll is not redistributable and Debug/Checked builds are not
120 # production-time scenarios.
121 add_compile_options($<$<OR:$<CONFIG:Release>,$<CONFIG:Relwithdebinfo>>:/MT>)
122 add_compile_options($<$<OR:$<CONFIG:Debug>,$<CONFIG:Checked>>:/MTd>)
124 set(CMAKE_ASM_MASM_FLAGS "${CMAKE_ASM_MASM_FLAGS} /ZH:SHA_256")
128 if(CMAKE_ENABLE_CODE_COVERAGE)
130 if(CLR_CMAKE_PLATFORM_UNIX)
131 string(TOUPPER ${CMAKE_BUILD_TYPE} UPPERCASE_CMAKE_BUILD_TYPE)
132 if(NOT UPPERCASE_CMAKE_BUILD_TYPE STREQUAL DEBUG)
133 message( WARNING "Code coverage results with an optimised (non-Debug) build may be misleading" )
134 endif(NOT UPPERCASE_CMAKE_BUILD_TYPE STREQUAL DEBUG)
136 add_compile_options(-fprofile-arcs)
137 add_compile_options(-ftest-coverage)
138 set(CLANG_COVERAGE_LINK_FLAGS "--coverage")
139 set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${CLANG_COVERAGE_LINK_FLAGS}")
140 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${CLANG_COVERAGE_LINK_FLAGS}")
142 message(FATAL_ERROR "Code coverage builds not supported on current platform")
143 endif(CLR_CMAKE_PLATFORM_UNIX)
145 endif(CMAKE_ENABLE_CODE_COVERAGE)