2025-01-08 13:08:42 -05:00
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# TODO: This currently assumes libstdc++, later on we should *probably* set this with some detection
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# also TODO: Use a list so that this isn't one giant line (list JOIN should help.)
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2025-01-17 23:08:51 -05:00
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set(EUROPA_CORE_COMPILE_ARGS "-Wall -Wextra -Wformat=2 -Wimplicit-fallthrough -fvisibility=hidden")
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2025-01-08 13:08:42 -05:00
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set(EUROPA_CORE_LINKER_ARGS "-fuse-ld=${EUROPA_LINKER}")
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if("${CMAKE_BUILD_TYPE}" STREQUAL "Release") # OR "${CMAKE_BUILD_TYPE}" STREQUAL "RelWithDebInfo"
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# If on Release use link-time optimizations.
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# On clang we use ThinLTO for even better build performance.
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if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
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set(EUROPA_CORE_COMPILE_ARGS "${EUROPA_CORE_COMPILE_ARGS} -flto=thin -ffunction-sections -fdata-sections")
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set(EUROPA_CORE_LINKER_ARGS "${EUROPA_CORE_LINKER_ARGS} -flto=thin -ffunction-sections -fdata-sections")
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else()
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set(EUROPA_CORE_COMPILE_ARGS "${EUROPA_CORE_COMPILE_ARGS} -flto -ffunction-sections -fdata-sections")
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set(EUROPA_CORE_LINKER_ARGS "${EUROPA_CORE_LINKER_ARGS} -flto -ffunction-sections -fdata-sections")
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endif()
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endif()
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set(_EUROPA_CORE_WANTED_SANITIZERS "")
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if("asan" IN_LIST EUROPA_SANITIZERS)
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# Error if someone's trying to mix asan and tsan together since they aren't compatible.
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if("tsan" IN_LIST EUROPA_SANITIZERS)
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message(FATAL_ERROR "ASAN and TSAN cannot be used together.")
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endif()
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message(STATUS "Enabling ASAN because it was in EUROPA_SANITIZERS")
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list(APPEND _EUROPA_CORE_WANTED_SANITIZERS "address")
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endif()
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if("tsan" IN_LIST EUROPA_SANITIZERS)
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if("asan" IN_LIST EUROPA_SANITIZERS)
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message(FATAL_ERROR "ASAN and TSAN cannot be used together.")
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endif()
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message(STATUS "Enabling TSAN because it was in EUROPA_SANITIZERS")
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list(APPEND _EUROPA_CORE_WANTED_SANITIZERS "thread")
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endif()
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if("ubsan" IN_LIST EUROPA_SANITIZERS)
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message(STATUS "Enabling UBSAN because it was in EUROPA_SANITIZERS")
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list(APPEND _EUROPA_CORE_WANTED_SANITIZERS "undefined")
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endif()
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list(LENGTH _EUROPA_CORE_WANTED_SANITIZERS _EUROPA_CORE_WANTED_SANITIZERS_LENGTH)
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if(NOT _EUROPA_CORE_WANTED_SANITIZERS_LENGTH EQUAL 0)
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list(JOIN _EUROPA_CORE_WANTED_SANITIZERS "," _EUROPA_CORE_WANTED_SANITIZERS_ARG)
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message(STATUS "Enabled sanitizers: ${_EUROPA_CORE_WANTED_SANITIZERS_ARG}")
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set(EUROPA_CORE_COMPILE_ARGS "${EUROPA_CORE_COMPILE_ARGS} -fsanitize=${_EUROPA_CORE_WANTED_SANITIZERS_ARG}")
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set(EUROPA_CORE_LINKER_ARGS "${EUROPA_CORE_LINKER_ARGS} -fsanitize=${_EUROPA_CORE_WANTED_SANITIZERS_ARG}")
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endif()
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# Set core CMake toolchain variables so that they get applied to all projects.
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# A bit nasty, but /shrug, this way our third party libraries can be mostly sanitized/etc as well.
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# We do NOT do this for CMake compiler features however.
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set(CMAKE_C_FLAGS "${EUROPA_CORE_COMPILE_ARGS}")
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set(CMAKE_CXX_FLAGS "${EUROPA_CORE_COMPILE_ARGS}")
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set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS} -O0 -g3")
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS} -O3 -g3")
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS} -DNDEBUG -O3 -s")
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set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS} -O0 -g3")
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS} -O3 -g3")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -DNDEBUG -O3 -s")
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set(CMAKE_EXE_LINKER_FLAGS "${EUROPA_CORE_LINKER_ARGS} -Wl,-z,noexecstack,-z,relro,-z,now,--gc-sections")
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