mirror of
https://github.com/stenzek/duckstation.git
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41fb5d3d9a
Otherwise ASLR does not work. Also stops LTO builds crashing in the middle of Qt on Fedora.
118 lines
4.0 KiB
CMake
118 lines
4.0 KiB
CMake
cmake_minimum_required(VERSION 3.16)
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project(duckstation C CXX)
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# Policy settings.
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cmake_policy(SET CMP0069 NEW)
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set(CMAKE_POLICY_DEFAULT_CMP0069 NEW)
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if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
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message(FATAL_ERROR "DuckStation does not support in-tree builds. Please make a build directory that is not the source"
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"directory and generate your CMake project there using either `cmake -B build_directory` or by "
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"running cmake from the build directory.")
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endif()
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if(NOT CMAKE_BUILD_TYPE MATCHES "Debug|Devel|MinSizeRel|RelWithDebInfo|Release")
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message(STATUS "CMAKE_BUILD_TYPE not set, defaulting to Release.")
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set(CMAKE_BUILD_TYPE "Release")
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endif()
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message(STATUS "CMake Version: ${CMAKE_VERSION}")
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message(STATUS "CMake System Name: ${CMAKE_SYSTEM_NAME}")
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message(STATUS "Build Type: ${CMAKE_BUILD_TYPE}")
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# Pull in modules.
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set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/CMakeModules/")
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include(DuckStationUtils)
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# Detect system attributes.
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detect_operating_system()
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detect_compiler()
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detect_architecture()
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detect_page_size()
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detect_cache_line_size()
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# Build options. Depends on system attributes.
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include(DuckStationBuildOptions)
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# Enable PIC on Linux, otherwise the builds do not support ASLR.
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if(LINUX OR BSD)
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include(CheckPIESupported)
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check_pie_supported()
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set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
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endif()
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# Set _DEBUG macro for Debug builds.
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set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG")
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set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -D_DEBUG")
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# Release build optimizations for MSVC.
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if(MSVC)
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add_definitions("/D_CRT_SECURE_NO_WARNINGS")
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foreach(config CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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# Set warning level 3 instead of 4.
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string(REPLACE "/W3" "/W4" ${config} "${${config}}")
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# Enable intrinsic functions, disable minimal rebuild, UTF-8 source, set __cplusplus version.
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set(${config} "${${config}} /Oi /Gm- /utf-8 /Zc:__cplusplus")
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endforeach()
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# RelWithDebInfo is set to Ob1 instead of Ob2.
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string(REPLACE "/Ob1" "/Ob2" CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO}")
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string(REPLACE "/Ob1" "/Ob2" CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
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# Disable incremental linking in RelWithDebInfo.
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string(REPLACE "/INCREMENTAL" "/INCREMENTAL:NO" CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO}")
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# COMDAT folding/remove unused functions.
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set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /OPT:REF /OPT:ICF")
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set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} /OPT:REF /OPT:ICF")
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endif()
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# Warning disables.
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if(COMPILER_CLANG OR COMPILER_CLANG_CL OR COMPILER_GCC)
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include(CheckCXXFlag)
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check_cxx_flag(-Wall COMPILER_SUPPORTS_WALL)
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check_cxx_flag(-Wno-class-memaccess COMPILER_SUPPORTS_MEMACCESS)
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check_cxx_flag(-Wno-invalid-offsetof COMPILER_SUPPORTS_OFFSETOF)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-switch")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-switch")
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endif()
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# We don't need exceptions, disable them to save a bit of code size.
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if(MSVC)
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string(REPLACE "/EHsc" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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string(REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D_HAS_EXCEPTIONS=0 /permissive-")
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else()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -fno-rtti")
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endif()
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# Write binaries to a seperate directory.
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin")
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# Enable large file support on Linux 32-bit platforms.
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if(CMAKE_SIZEOF_VOID_P EQUAL 4)
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add_definitions("-D_FILE_OFFSET_BITS=64")
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endif()
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# Optional unit tests.
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if(BUILD_TESTS)
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enable_testing()
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endif()
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# Prevent fmt from being built with exceptions, or being thrown at call sites.
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DFMT_EXCEPTIONS=0")
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# Use C++20.
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set(CMAKE_CXX_STANDARD 20)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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# Recursively include the source tree.
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include(DuckStationDependencies)
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add_subdirectory(dep)
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add_subdirectory(src)
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# Output build summary.
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include(DuckStationBuildSummary)
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