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https://github.com/RGBCube/serenity
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Meta: Add Clang support to the CMake build scripts
This commit is contained in:
Daniel Bertalan
Andreas Kling
parent
15e217ea68
commit
13e3df41de
7 changed files with 128 additions and 22 deletions
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@ -22,6 +22,12 @@ 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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@ -37,6 +43,7 @@ option(ENABLE_PCI_IDS_DOWNLOAD "Enable download of the pci.ids database at build
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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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@ -60,18 +67,22 @@ add_custom_target(setup-and-run
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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}" ${CMAKE_SOURCE_DIR}/Meta/build-image-qemu.sh
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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}" ${CMAKE_SOURCE_DIR}/Meta/build-image-grub.sh
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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}" ${CMAKE_SOURCE_DIR}/Meta/build-image-extlinux.sh
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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 ${CMAKE_BINARY_DIR}/extlinux_disk_image
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USES_TERMINAL
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)
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@ -100,12 +111,13 @@ set(CMAKE_CXX_STANDARD 20)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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add_compile_options(-Wno-literal-suffix)
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add_compile_options(-fsized-deallocation)
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if ("${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 -Wno-user-defined-literals)
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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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@ -159,10 +171,23 @@ 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 ${CMAKE_BINARY_DIR}/Root/res)
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set(GCC_VERSION 11.2.0)
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if (${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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@ -219,11 +244,9 @@ 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-align)
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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(-Wdouble-promotion)
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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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@ -235,16 +258,52 @@ 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 ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
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add_compile_options(-fstack-clash-protection)
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if (USE_CLANG_TOOLCHAIN)
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add_compile_options(-Wno-atomic-alignment)
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add_compile_options(-Wno-c99-designator)
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add_compile_options(-Wno-implicit-const-int-float-conversion)
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add_compile_options(-Wno-inconsistent-missing-override)
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add_compile_options(-Wno-tautological-constant-out-of-range-compare)
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add_compile_options(-Wno-unneeded-internal-declaration)
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add_compile_options(-Wno-unused-function)
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add_compile_options(-Wno-user-defined-literals)
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# Without the 'SHELL' prefix, this would get removed through de-duplication with the flags set for the host compiler.
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# Then, that would come before '-Wextra', so it would not negate the '-Woverloaded-virtual' set by '-Wextra'.
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add_compile_options(SHELL:-Wno-overloaded-virtual)
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add_compile_options(--sysroot=${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/${LLVM_VERSION}/lib/serenity)
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add_link_options(LINKER:--allow-shlib-undefined)
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else()
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add_compile_options(-Wcast-align)
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add_compile_options(-Wdouble-promotion)
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endif()
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if("${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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@ -256,6 +315,7 @@ if (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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