mirror of
https://github.com/stenzek/duckstation.git
synced 2026-07-11 01:24:11 +02:00
Stenzek
22ee4c0760
Doing a full xsave/xrstor the first time a library function is called is completely bonkers. Plus the obvious security issues with the PLT being writable. And people think this OS is faster than Windows. Even with immediate binding it's still slower, since it's a single indirect call on Windows, versus a direct call+indirect jump here.
98 lines
3.4 KiB
CMake
98 lines
3.4 KiB
CMake
# SPDX-FileCopyrightText: 2019-2026 Connor McLaughlin <stenzek@gmail.com>
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# SPDX-License-Identifier: CC-BY-NC-ND-4.0 + Packaging Restriction
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#
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# NOTE: In addition to the terms of CC-BY-NC-ND-4.0, you may not use this file to create
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# packages or build recipes without explicit permission from the copyright holder.
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#
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# Unless otherwise specified, other files supporting the build system are covered under
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# the same terms.
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#
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cmake_minimum_required(VERSION 3.19)
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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 ${CMAKE_BINARY_DIR})
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message(FATAL_ERROR "DuckStation does not support in-tree builds. Please make a build directory that is not the source"
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"directory and generate your CMake project there using either `cmake -B build_directory` or by "
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"running cmake from the build directory.")
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endif()
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if(NOT CMAKE_BUILD_TYPE MATCHES "Debug|Devel|MinSizeRel|RelWithDebInfo|Release")
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message(FATAL_ERROR "CMAKE_BUILD_TYPE not set. Please set it first.")
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endif()
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# Pull in modules.
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set(CMAKE_MODULE_PATH "${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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include(DuckStationDependencies)
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include(DuckStationCompilerRequirement)
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# Enable PIC on Linux, otherwise the builds do not support ASLR.
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# Also force immediate binding of all symbols, glibc and its
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# xsave/xrstor on first shared library call is bonkers.
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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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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,now,-z,relro")
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endif()
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# Force debug symbols for Linux builds.
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add_debug_symbol_flag(CMAKE_C_FLAGS_RELEASE)
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add_debug_symbol_flag(CMAKE_CXX_FLAGS_RELEASE)
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# Warning disables.
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if(COMPILER_CLANG OR COMPILER_CLANG_CL OR COMPILER_GCC)
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include(CheckCXXFlag)
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check_cxx_flag(-Wall COMPILER_SUPPORTS_WALL)
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check_cxx_flag(-Wno-invalid-offsetof COMPILER_SUPPORTS_OFFSETOF)
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endif()
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# We don't need exceptions, disable them to save a bit of code size.
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -fno-rtti")
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# Rewrite paths in macros to be relative to the source directory.
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# Helpful for reproducible builds.
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if("${CMAKE_BUILD_TYPE}" STREQUAL "Release" AND NOT CMAKE_GENERATOR MATCHES "Xcode" AND
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(COMPILER_CLANG OR COMPILER_CLANG_CL OR COMPILER_GCC))
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file(RELATIVE_PATH source_dir_remap "${CMAKE_BINARY_DIR}" "${CMAKE_SOURCE_DIR}")
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string(REGEX REPLACE "\/+$" "" source_dir_remap "${source_dir_remap}")
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set(source_dir_remap_str "\"${CMAKE_SOURCE_DIR}\"=\"${source_dir_remap}\"")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffile-prefix-map=${source_dir_remap_str}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffile-prefix-map=${source_dir_remap_str}")
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endif()
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# Write binaries to a seperate directory.
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${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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# Recursively include the source tree.
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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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