mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-10 13:00:29 +03:00
bd6dc5ccec
The `-z,text` linker flag causes the linker to reject shared libraries and PIE executables that have textrels. Our code mostly did not use these except in one place in LibC, which is changed in this commit. This makes GNU ld match LLD's behavior, which has this option enabled by default. TEXTRELs pose a security risk, as performing these relocations require executable pages to be written to by the dynamic linker. This can significantly weaken W^X hardening mitigations. Note that after this change, TEXTRELs can still be used in ports, as the dynamic loader code is not changed. There are also uses of it in the kernel, removing which are outside the scope of this PR. To allow those, `-z,notext` is added.
392 lines
16 KiB
CMake
392 lines
16 KiB
CMake
cmake_minimum_required(VERSION 3.16)
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project(SerenityOS C CXX ASM)
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if(NOT "${CMAKE_BUILD_TYPE}" STREQUAL "")
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message(FATAL_ERROR
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": Don't use CMAKE_BUILD_TYPE when building serenity.\n"
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"The default build type is optimized with debug info and asserts enabled,\n"
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"and that's all there is.")
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endif()
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if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 10.2)
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message(FATAL_ERROR
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"A GCC version less than 10.2 was detected (${CMAKE_CXX_COMPILER_VERSION}), this is unsupported.\n"
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"Please re-read the build instructions documentation, and upgrade your host compiler.\n")
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endif()
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set(CMAKE_INSTALL_MESSAGE NEVER)
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enable_testing()
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
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set(SERENITY_ARCH "i686" CACHE STRING "Target architecture for SerenityOS.")
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if("${SERENITY_ARCH}" STREQUAL "i686")
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set(SERENITY_CLANG_ARCH "i386")
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else()
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set(SERENITY_CLANG_ARCH ${SERENITY_ARCH})
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endif()
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# Central location for all custom options used in the Serenity build.
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option(ENABLE_ADDRESS_SANITIZER "Enable address sanitizer testing in gcc/clang" OFF)
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option(ENABLE_KERNEL_ADDRESS_SANITIZER "Enable kernel address sanitizer testing in gcc/clang" OFF)
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option(ENABLE_KERNEL_COVERAGE_COLLECTION "Enable KCOV and kernel coverage instrumentation in gcc/clang" OFF)
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option(ENABLE_MEMORY_SANITIZER "Enable memory sanitizer testing in gcc/clang" OFF)
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option(ENABLE_UNDEFINED_SANITIZER "Enable undefined behavior sanitizer testing in gcc/clang" OFF)
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option(ENABLE_FUZZER_SANITIZER "Enable fuzzer sanitizer testing in clang" OFF)
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option(ENABLE_EXTRA_KERNEL_DEBUG_SYMBOLS "Enable -Og and -ggdb3 options for Kernel code for easier debugging" OFF)
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option(ENABLE_ALL_THE_DEBUG_MACROS "Enable all debug macros to validate they still compile" OFF)
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option(ENABLE_ALL_DEBUG_FACILITIES "Enable all noisy debug symbols and options. Not recommended for normal developer use" OFF)
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option(ENABLE_COMPILETIME_FORMAT_CHECK "Enable compiletime format string checks" ON)
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option(ENABLE_PCI_IDS_DOWNLOAD "Enable download of the pci.ids database at build time" ON)
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option(ENABLE_USB_IDS_DOWNLOAD "Enable download of the usb.ids database at build time" ON)
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option(BUILD_LAGOM "Build parts of the system targeting the host OS for fuzzing/testing" OFF)
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option(ENABLE_KERNEL_LTO "Build the kernel with link-time optimization" OFF)
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option(USE_CLANG_TOOLCHAIN "Build the kernel with the experimental Clang toolchain" OFF)
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include(Meta/CMake/wasm_spec_tests.cmake)
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add_custom_target(run
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COMMAND ${CMAKE_COMMAND} -E env "SERENITY_ARCH=${SERENITY_ARCH}" ${CMAKE_SOURCE_DIR}/Meta/run.sh
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USES_TERMINAL
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)
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# This can currently only be implemented by ordered commands
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# as cmake doesn't support inter dependency ordering, and we
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# would like to avoid inject dependencies on the existing
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# custom commands to allow people to run commands adhoc with
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# out forcing re-builds when they might not want them.
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add_custom_target(setup-and-run
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COMMAND ${CMAKE_MAKE_PROGRAM} install
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COMMAND ${CMAKE_MAKE_PROGRAM} image
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COMMAND ${CMAKE_MAKE_PROGRAM} run
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USES_TERMINAL
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)
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add_custom_target(image
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DEPENDS qemu-image
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)
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set(GCC_VERSION 11.2.0)
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set(LLVM_VERSION 12.0.1)
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add_custom_target(qemu-image
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COMMAND ${CMAKE_COMMAND} -E env "SERENITY_SOURCE_DIR=${CMAKE_SOURCE_DIR}" "SERENITY_ARCH=${SERENITY_ARCH}" "USE_CLANG_TOOLCHAIN=$<BOOL:${USE_CLANG_TOOLCHAIN}>" "LLVM_VERSION=${LLVM_VERSION}" ${CMAKE_SOURCE_DIR}/Meta/build-image-qemu.sh
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BYPRODUCTS ${CMAKE_BINARY_DIR}/_disk_image
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USES_TERMINAL
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)
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add_custom_target(grub-image
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COMMAND ${CMAKE_COMMAND} -E env "SERENITY_SOURCE_DIR=${CMAKE_SOURCE_DIR}" "SERENITY_ARCH=${SERENITY_ARCH}" "USE_CLANG_TOOLCHAIN=$<BOOL:${USE_CLANG_TOOLCHAIN}>" "LLVM_VERSION=${LLVM_VERSION}" ${CMAKE_SOURCE_DIR}/Meta/build-image-grub.sh
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BYPRODUCTS ${CMAKE_BINARY_DIR}/grub_disk_image
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USES_TERMINAL
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)
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add_custom_target(extlinux-image
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COMMAND ${CMAKE_COMMAND} -E env "SERENITY_SOURCE_DIR=${CMAKE_SOURCE_DIR}" "SERENITY_ARCH=${SERENITY_ARCH}" "USE_CLANG_TOOLCHAIN=$<BOOL:${USE_CLANG_TOOLCHAIN}>" "LLVM_VERSION=${LLVM_VERSION}" ${CMAKE_SOURCE_DIR}/Meta/build-image-extlinux.sh
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BYPRODUCTS ${CMAKE_BINARY_DIR}/extlinux_disk_image
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USES_TERMINAL
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)
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add_custom_target(lint-shell-scripts
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COMMAND ${CMAKE_SOURCE_DIR}/Meta/lint-shell-scripts.sh
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USES_TERMINAL
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)
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add_custom_target(check-style
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COMMAND ${CMAKE_SOURCE_DIR}/Meta/check-style.sh
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USES_TERMINAL
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)
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add_custom_target(install-ports
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COMMAND ${CMAKE_COMMAND} -E env "SERENITY_SOURCE_DIR=${CMAKE_SOURCE_DIR}" "SERENITY_ARCH=${SERENITY_ARCH}" ${CMAKE_SOURCE_DIR}/Meta/install-ports-tree.sh
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USES_TERMINAL
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)
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add_custom_target(configure-components
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COMMAND ConfigureComponents
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DEPENDS ConfigureComponents
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USES_TERMINAL
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)
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set(CMAKE_CXX_STANDARD 20)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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add_compile_options(-fsized-deallocation)
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if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
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add_compile_options(-Wno-literal-suffix)
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elseif ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang$")
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add_compile_options(-Wno-overloaded-virtual)
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add_compile_options(-Wno-user-defined-literals)
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add_compile_options(-fconstexpr-steps=16777216)
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endif()
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if (ENABLE_ALL_DEBUG_FACILITIES)
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set(ENABLE_ALL_THE_DEBUG_MACROS ON)
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set(ENABLE_EXTRA_KERNEL_DEBUG_SYMBOLS ON)
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# Immediately finds violations during boot, shouldn't be discoverable
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# by people who aren't working on fixing issues. Use this check to make
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# sure this code continues to build instead of all_debug_macros to avoid
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# people filing bugs.
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set(KMALLOC_VERIFY_NO_SPINLOCK_HELD ON)
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# Enables KCOV API and injects kernel coverage instrumentation via
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# -fsanitize-coverage=trace-pc. Mostly here to ensure that the CI catches
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# commits breaking this flag.
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set(ENABLE_KERNEL_COVERAGE_COLLECTION ON)
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endif()
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if (ENABLE_ALL_THE_DEBUG_MACROS)
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include(${CMAKE_SOURCE_DIR}/Meta/CMake/all_the_debug_macros.cmake)
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endif(ENABLE_ALL_THE_DEBUG_MACROS)
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configure_file(AK/Debug.h.in AK/Debug.h @ONLY)
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configure_file(Kernel/Debug.h.in Kernel/Debug.h @ONLY)
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include_directories(Userland/Libraries)
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include_directories(.)
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include_directories(${CMAKE_BINARY_DIR})
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set(write_if_different ${CMAKE_SOURCE_DIR}/Meta/write-only-on-difference.sh)
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add_subdirectory(Meta/Lagom)
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if (ENABLE_UNDEFINED_SANITIZER)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined")
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endif()
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add_subdirectory(Userland/DevTools/IPCCompiler)
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add_subdirectory(Userland/DevTools/StateMachineGenerator)
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add_subdirectory(Userland/Libraries/LibUnicode/CodeGenerators)
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add_subdirectory(Userland/Libraries/LibWeb/CodeGenerators)
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add_subdirectory(Meta/CMake/ConfigureComponents)
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find_program(CCACHE_PROGRAM ccache)
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if(CCACHE_PROGRAM)
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set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
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endif()
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unset(CMAKE_SYSROOT)
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set(CMAKE_STAGING_PREFIX ${CMAKE_BINARY_DIR}/Root)
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set(CMAKE_INSTALL_PREFIX ${CMAKE_BINARY_DIR}/Root)
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set(CMAKE_INSTALL_DATAROOTDIR ${CMAKE_BINARY_DIR}/Root/res)
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if (${CMAKE_HOST_SYSTEM_NAME} MATCHES SerenityOS)
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message("Good job on building cmake!")
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elseif(USE_CLANG_TOOLCHAIN)
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set(TOOLCHAIN_ROOT ${CMAKE_SOURCE_DIR}/Toolchain/Local/clang/${SERENITY_ARCH}/)
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set(TOOLCHAIN_PATH ${TOOLCHAIN_ROOT}/bin)
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set(CMAKE_C_COMPILER ${TOOLCHAIN_PATH}/clang)
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set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PATH}/clang++)
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set(CMAKE_ASM_COMPILER ${TOOLCHAIN_PATH}/clang)
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set(CMAKE_LINKER ${TOOLCHAIN_PATH}/ld.lld)
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set(CMAKE_RANLIB ${TOOLCHAIN_PATH}/llvm-ranlib)
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set(CMAKE_STRIP ${TOOLCHAIN_PATH}/llvm-strip)
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set(CMAKE_AR ${TOOLCHAIN_PATH}/llvm-ar)
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set(CMAKE_CXXFILT ${TOOLCHAIN_PATH}/llvm-cxxfilt)
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# FIXME: Persuade LLVM maintainers to add `--update-section` to llvm-objcopy, as it's required for the kernel symbol map.
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set(CMAKE_OBJCOPY ${TOOLCHAIN_ROOT}/binutils/bin/${SERENITY_ARCH}-pc-serenity-objcopy)
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else()
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set(TOOLCHAIN_ROOT ${CMAKE_SOURCE_DIR}/Toolchain/Local/${SERENITY_ARCH}/)
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set(TOOLCHAIN_PATH ${TOOLCHAIN_ROOT}/bin)
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set(TOOLCHAIN_PREFIX ${TOOLCHAIN_PATH}/${SERENITY_ARCH}-pc-serenity-)
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set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}gcc)
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set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}g++)
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set(CMAKE_ASM_COMPILER ${TOOLCHAIN_PREFIX}gcc)
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set(CMAKE_LINKER ${TOOLCHAIN_PREFIX}ld)
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set(CMAKE_RANLIB ${TOOLCHAIN_PREFIX}gcc-ranlib)
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set(CMAKE_STRIP ${TOOLCHAIN_PREFIX}strip)
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set(CMAKE_AR ${TOOLCHAIN_PREFIX}gcc-ar)
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set(CMAKE_OBJCOPY ${TOOLCHAIN_PREFIX}objcopy)
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set(CMAKE_CXXFILT ${TOOLCHAIN_PREFIX}c++filt)
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endif()
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foreach(lang ASM C CXX OBJC OBJCXX)
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unset(CMAKE_${lang}_OSX_COMPATIBILITY_VERSION_FLAG)
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unset(CMAKE_${lang}_OSX_CURRENT_VERSION_FLAG)
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unset(CMAKE_${lang}_LINK_FLAGS)
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unset(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS)
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unset(CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS)
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unset(CMAKE_SHARED_MODULE_LOADER_${lang}_FLAG )
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unset(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG)
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unset(CMAKE_${lang}_SYSROOT_FLAG)
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if (CMAKE_SYSTEM_NAME MATCHES Darwin)
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## macOS workaround. Use GNU ld flags for SONAMEs.
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set(CMAKE_${lang}_CREATE_SHARED_LIBRARY
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"<CMAKE_${lang}_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> <LINK_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
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set(CMAKE_SHARED_LIBRARY_SONAME_${lang}_FLAG "-Wl,-soname,")
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endif()
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endforeach()
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set(CMAKE_INSTALL_NAME_TOOL "")
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set(CMAKE_SHARED_LIBRARY_SUFFIX ".so")
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set(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "-shared -Wl,--hash-style=gnu,-z,relro,-z,now,-z,noexecstack")
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set(CMAKE_CXX_LINK_FLAGS "-Wl,--hash-style=gnu,-z,relro,-z,now,-z,noexecstack,-z,max-page-size=0x1000")
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# We disable it completely because it makes cmake very spammy.
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# This will need to be revisited when the Loader supports RPATH/RUN_PATH.
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set(CMAKE_SKIP_RPATH TRUE)
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add_compile_options(-Wformat=2)
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add_compile_options(-fdiagnostics-color=always)
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if (NOT ${CMAKE_HOST_SYSTEM_NAME} MATCHES SerenityOS)
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# FIXME: Something makes this go crazy and flag unused variables that aren't flagged as such when building with the toolchain.
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# Disable -Werror for now.
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add_compile_options(-Werror)
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endif()
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add_compile_options(-Wall)
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add_compile_options(-Wextra)
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# The following warnings are sorted by the "base" name (the part excluding the initial Wno or W).
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add_compile_options(-Wno-address-of-packed-member)
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add_compile_options(-Wcast-qual)
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add_compile_options(-Wno-deprecated-copy)
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add_compile_options(-Wduplicated-cond)
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add_compile_options(-Wno-expansion-to-defined)
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add_compile_options(-Wformat=2)
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add_compile_options(-Wimplicit-fallthrough)
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add_compile_options(-Wlogical-op)
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add_compile_options(-Wmisleading-indentation)
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add_compile_options(-Wmissing-declarations)
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add_compile_options(-Wnon-virtual-dtor)
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add_compile_options(-Wno-unknown-warning-option)
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add_compile_options(-Wundef)
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add_compile_options(-Wunused)
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add_compile_options(-Wno-unused-private-field)
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add_compile_options(-Wno-unused-const-variable)
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add_compile_options(-Wno-unused-command-line-argument)
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add_compile_options(-Wwrite-strings)
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add_compile_options(-Wno-maybe-uninitialized)
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add_compile_options(-ffile-prefix-map=${CMAKE_SOURCE_DIR}=.)
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add_compile_options(-fno-exceptions)
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add_compile_options(-ftls-model=initial-exec)
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add_compile_options(-fno-semantic-interposition)
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add_compile_options(-fstack-clash-protection)
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add_compile_options(-fstack-protector-strong)
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add_compile_options(-g1)
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if (USE_CLANG_TOOLCHAIN)
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add_compile_options(-Wno-atomic-alignment)
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add_compile_options(-Wno-c99-designator)
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add_compile_options(-Wno-implicit-const-int-float-conversion)
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add_compile_options(-Wno-inconsistent-missing-override)
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add_compile_options(-Wno-tautological-constant-out-of-range-compare)
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add_compile_options(-Wno-unneeded-internal-declaration)
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add_compile_options(-Wno-unused-function)
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add_compile_options(-Wno-user-defined-literals)
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# Without the 'SHELL' prefix, this would get removed through de-duplication with the flags set for the host compiler.
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# Then, that would come before '-Wextra', so it would not negate the '-Woverloaded-virtual' set by '-Wextra'.
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add_compile_options(SHELL:-Wno-overloaded-virtual)
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add_compile_options(--sysroot=${CMAKE_BINARY_DIR}/Root)
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add_compile_options(--target=${SERENITY_CLANG_ARCH}-pc-serenity)
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add_compile_options(-fno-aligned-allocation)
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add_compile_options(-fconstexpr-steps=16777216)
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add_compile_options(-gdwarf-4)
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# FIXME: Why is Clang not picking up this path?
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link_directories(${TOOLCHAIN_ROOT}/lib/clang/${LLVM_VERSION}/lib/serenity)
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add_link_options(LINKER:--allow-shlib-undefined)
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else()
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add_compile_options(-Wcast-align)
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add_compile_options(-Wdouble-promotion)
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endif()
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add_link_options(LINKER:-z,text)
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if("${SERENITY_ARCH}" STREQUAL "i686")
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add_compile_options(-march=i686)
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else()
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add_compile_options(-march=x86-64)
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endif()
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add_compile_definitions(SANITIZE_PTRS)
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set(CMAKE_CXX_FLAGS_STATIC "${CMAKE_CXX_FLAGS} -static")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pie -fpic")
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if (ENABLE_COMPILETIME_FORMAT_CHECK)
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add_compile_definitions(ENABLE_COMPILETIME_FORMAT_CHECK)
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endif()
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add_link_options(--sysroot ${CMAKE_BINARY_DIR}/Root)
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add_link_options(-Wno-unused-command-line-argument)
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include_directories(Userland/Libraries/LibC)
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include_directories(Userland/Libraries/LibCrypt)
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include_directories(Userland/Libraries/LibM)
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include_directories(Userland/Libraries/LibPthread)
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include_directories(Userland/Libraries/LibSystem)
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include_directories(Userland/Services)
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include_directories(Userland)
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include_directories(${CMAKE_CURRENT_BINARY_DIR})
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include_directories(${CMAKE_CURRENT_BINARY_DIR}/Userland/Services)
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include_directories(${CMAKE_CURRENT_BINARY_DIR}/Userland/Libraries)
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include_directories(${CMAKE_CURRENT_BINARY_DIR}/Userland)
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# FIXME: vptr sanitizing requires.. intense ABI wrangling of std::type_info
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# And would be better served by porting ubsan_type_hash_itanium.cpp from compiler-rt
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# We don't set this along with the original fsanitize=undefined because for host tools, we can rely on
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# the host's libubsan to provide the ABI-specific vptr type cache.
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# This is not a problem for the Kernel, because it does not have RTTI enabled :^)
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if (ENABLE_UNDEFINED_SANITIZER)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-sanitize=vptr")
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endif()
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add_custom_target(components ALL)
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option(BUILD_EVERYTHING "Build all optional components" ON)
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include(${CMAKE_SOURCE_DIR}/Meta/CMake/utils.cmake)
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serenity_component(
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Tests
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RECOMMENDED
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)
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add_subdirectory(AK)
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add_subdirectory(Kernel)
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add_subdirectory(Userland)
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add_subdirectory(Tests)
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export_components("${CMAKE_BINARY_DIR}/components.ini")
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set(PCI_IDS_GZ_URL https://pci-ids.ucw.cz/v2.2/pci.ids.gz)
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set(PCI_IDS_GZ_PATH ${CMAKE_BINARY_DIR}/pci.ids.gz)
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set(PCI_IDS_PATH ${CMAKE_BINARY_DIR}/pci.ids)
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set(PCI_IDS_INSTALL_PATH ${CMAKE_INSTALL_DATAROOTDIR}/pci.ids)
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if(ENABLE_PCI_IDS_DOWNLOAD AND NOT EXISTS ${PCI_IDS_GZ_PATH})
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message(STATUS "Downloading PCI ID database from ${PCI_IDS_GZ_URL}...")
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file(DOWNLOAD ${PCI_IDS_GZ_URL} ${PCI_IDS_GZ_PATH} INACTIVITY_TIMEOUT 10)
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endif()
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if(EXISTS ${PCI_IDS_GZ_PATH} AND NOT EXISTS ${PCI_IDS_INSTALL_PATH})
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message(STATUS "Extracting PCI ID database from ${PCI_IDS_GZ_PATH}...")
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execute_process(COMMAND gzip -k -d ${PCI_IDS_GZ_PATH})
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file(MAKE_DIRECTORY ${CMAKE_INSTALL_DATAROOTDIR})
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file(RENAME ${PCI_IDS_PATH} ${PCI_IDS_INSTALL_PATH})
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endif()
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set(USB_IDS_GZ_URL http://www.linux-usb.org/usb.ids.gz)
|
|
set(USB_IDS_GZ_PATH ${CMAKE_BINARY_DIR}/usb.ids.gz)
|
|
set(USB_IDS_PATH ${CMAKE_BINARY_DIR}/usb.ids)
|
|
set(USB_IDS_INSTALL_PATH ${CMAKE_INSTALL_DATAROOTDIR}/usb.ids)
|
|
|
|
if(ENABLE_USB_IDS_DOWNLOAD AND NOT EXISTS ${USB_IDS_GZ_PATH})
|
|
message(STATUS "Downloading USB ID database from ${USB_IDS_GZ_URL}...")
|
|
file(DOWNLOAD ${USB_IDS_GZ_URL} ${USB_IDS_GZ_PATH} INACTIVITY_TIMEOUT 10)
|
|
endif()
|
|
|
|
if(EXISTS ${USB_IDS_GZ_PATH} AND NOT EXISTS ${USB_IDS_INSTALL_PATH})
|
|
message(STATUS "Extracting USB ID database from ${USB_IDS_GZ_PATH}...")
|
|
execute_process(COMMAND gzip -k -d ${USB_IDS_GZ_PATH})
|
|
file(MAKE_DIRECTORY ${CMAKE_INSTALL_DATAROOTDIR})
|
|
file(RENAME ${USB_IDS_PATH} ${USB_IDS_INSTALL_PATH})
|
|
endif()
|