dolphin/Source/CMakeLists.txt
Léo Lam 585899dba3
Turn format string issues into compile-time errors
If the compiler can detect an issue with a format string at compile
time, then we should take advantage of that and turn the issue into a
hard compile-time error as such problems almost always lead to UB.

This helps with catching logging or assertion messages that have been
converted over to fmt but are still using the old, non-fmt variants
of the logging macros.

This commit also fixes all incorrect usages that I could find.
2020-12-04 18:06:02 +01:00

123 lines
4.8 KiB
CMake

option(DOLPHIN_CXX_FLAGS "Flags used to compile Dolphin-only sources" "")
if(DOLPHIN_CXX_FLAGS)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${DOLPHIN_CXX_FLAGS}")
endif()
if(CMAKE_SYSTEM_NAME MATCHES "Windows")
add_definitions(-DNOMINMAX)
add_definitions(-DUNICODE)
add_definitions(-D_UNICODE)
add_definitions(-DWIN32_LEAN_AND_MEAN)
add_definitions(-D_WIN32_WINNT=0x0602)
add_definitions(-D_SCL_SECURE_NO_WARNINGS)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
add_definitions(-D_CRT_NONSTDC_NO_WARNINGS)
add_definitions(-D_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING)
endif()
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
if (MSVC)
# TODO: Use https://cmake.org/cmake/help/latest/policy/CMP0092.html instead (once we can require CMake >= 3.15)
# Taken from http://www.cmake.org/Wiki/CMake_FAQ#Dynamic_Replace.
foreach(flag_var
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
MAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
# Replaces /W3 with /W4 in defaults (add_compile_options would cause very annoying warnings here)
string(REPLACE "/W3" "/W4" ${flag_var} "${${flag_var}}")
endforeach()
# Disable some warnings
add_compile_options(
/wd4201 # nonstandard extension used : nameless struct/union
/wd4127 # conditional expression is constant
/wd4100 # 'identifier' : unreferenced formal parameter
/wd4200 # InputCommon fix temp.
/wd4244 # 'conversion' conversion from 'type1' to 'type2', possible loss of data
/wd4121 # 'symbol' : alignment of a member was sensitive to packing
/wd4324 # Padding was added at the end of a structure because you specified a __declspec(align) value.
/wd4714 # function 'function' marked as __forceinline not inlined
/wd4351 # new behavior: elements of array 'array' will be default initialized
# TODO: Enable this warning once possible
/wd4245 # conversion from 'type1' to 'type2', signed/unsigned mismatch
# Currently jits use some annoying code patterns which makes this common
)
# Additional warnings
add_compile_options(
/w44263 # Non-virtual member function hides base class virtual function
/w44265 # Class has virtual functions, but destructor is not virtual
)
# Treat all warnings as errors
add_compile_options(/WX)
# All files are encoded as UTF-8
add_compile_options(/utf-8)
# Use PCH
add_subdirectory(PCH)
add_definitions(/I${PCH_DIRECTORY})
add_definitions(/Yu${PCH_PATH})
# Don't include timestamps in binaries
add_link_options(/Brepro)
else()
check_and_add_flag(HAVE_WALL -Wall)
# TODO: would like these but they produce overwhelming amounts of warnings
#check_and_add_flag(EXTRA -Wextra)
#check_and_add_flag(MISSING_FIELD_INITIALIZERS -Wmissing-field-initializers)
#check_and_add_flag(SWITCH_DEFAULT -Wswitch-default)
#check_and_add_flag(FLOAT_EQUAL -Wfloat-equal)
#check_and_add_flag(CONVERSION -Wconversion)
#check_and_add_flag(ZERO_AS_NULL_POINTER_CONSTANT -Wzero-as-null-pointer-constant)
check_and_add_flag(TYPE_LIMITS -Wtype-limits)
check_and_add_flag(SIGN_COMPARE -Wsign-compare)
check_and_add_flag(IGNORED_QUALIFIERS -Wignored-qualifiers)
check_and_add_flag(UNINITIALIZED -Wuninitialized)
check_and_add_flag(LOGICAL_OP -Wlogical-op)
check_and_add_flag(SHADOW -Wshadow)
check_and_add_flag(INIT_SELF -Winit-self)
check_and_add_flag(MISSING_DECLARATIONS -Wmissing-declarations)
check_and_add_flag(MISSING_VARIABLE_DECLARATIONS -Wmissing-variable-declarations)
# Disable -Wstringop-truncation warnings as they result in many false positives.
# In most (all?) cases where std::strncpy is used, we want to fill the entire buffer
# or match emulated code that also ignores the null terminator, so the warnings are not useful.
# Given that Dolphin itself mostly uses std::string, they do not really help catch any bugs.
check_cxx_compiler_flag(-Wstringop-truncation HAS_STRINGOP_TRUNCATION_WARNING)
if (HAS_STRINGOP_TRUNCATION_WARNING)
check_and_add_flag(NO_STRINGOP_TRUNCATION -Wno-stringop-truncation)
endif()
# Format string issues that the compiler can detect should be compile time errors.
check_cxx_compiler_flag(-Wformat HAS_FORMAT_WARNING)
if (HAS_FORMAT_WARNING)
check_and_add_flag(FORMAT_WARNING_TO_ERROR -Werror=format)
endif()
endif()
# These aren't actually needed for C11/C++11
# but some dependencies require them (LLVM, libav).
add_definitions(-D__STDC_LIMIT_MACROS)
add_definitions(-D__STDC_CONSTANT_MACROS)
add_subdirectory(Core)
if (ANDROID)
add_subdirectory(Android/jni)
endif()
if (ENABLE_TESTS)
add_subdirectory(UnitTests)
endif()
if (DSPTOOL)
add_subdirectory(DSPTool)
endif()
# TODO: Add DSPSpy. Preferably make it option() and cpack component