Toolchain+Meta: Update LLVM version to 13.0.0
This commit updates the Clang toolchain's version to 13.0.0, which comes
with better C++20 support and improved handling of new features by
clang-format. Due to the newly enabled `-Bsymbolic-functions` flag, our
Clang binaries will only be 2-4% slower than if we dynamically linked
them, but we save hundreds of megabytes of disk space.
The `BuildClang.sh` script has been reworked to build the entire
toolchain in just three steps: one for the compiler, one for GNU
binutils, and one for the runtime libraries. This reduces the complexity
of the build script, and will allow us to modify the CI configuration to
only rebuild the libraries when our libc headers change.
Most of the compile flags have been moved out to a separate CMake cache
file, similarly to how the Android and Fuchsia toolchains are
implemented within the LLVM repo. This provides a nicer interface than
the heaps of command-line arguments.
We no longer build separate toolchains for each architecture, as the
same Clang binary can compile code for multiple targets.
The horrible mess that `SERENITY_CLANG_ARCH` was, has been removed in
this commit. Clang happily accepts an `i686-pc-serenity` target triple,
which matches what our GCC toolchain accepts.
2021-08-13 13:11:12 +03:00
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# This file specifies the options used for building the various LLVM runtime libraries
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2022-01-03 07:51:27 +03:00
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# Note: We force the cmake module path for all dependent projects to include our custom directory
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# That has the Platform/SerenityOS.cmake definition
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set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${SERENITY_MODULE_PATH}" CACHE STRING "Modules for CMake")
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Toolchain+Meta: Update LLVM version to 13.0.0
This commit updates the Clang toolchain's version to 13.0.0, which comes
with better C++20 support and improved handling of new features by
clang-format. Due to the newly enabled `-Bsymbolic-functions` flag, our
Clang binaries will only be 2-4% slower than if we dynamically linked
them, but we save hundreds of megabytes of disk space.
The `BuildClang.sh` script has been reworked to build the entire
toolchain in just three steps: one for the compiler, one for GNU
binutils, and one for the runtime libraries. This reduces the complexity
of the build script, and will allow us to modify the CI configuration to
only rebuild the libraries when our libc headers change.
Most of the compile flags have been moved out to a separate CMake cache
file, similarly to how the Android and Fuchsia toolchains are
implemented within the LLVM repo. This provides a nicer interface than
the heaps of command-line arguments.
We no longer build separate toolchains for each architecture, as the
same Clang binary can compile code for multiple targets.
The horrible mess that `SERENITY_CLANG_ARCH` was, has been removed in
this commit. Clang happily accepts an `i686-pc-serenity` target triple,
which matches what our GCC toolchain accepts.
2021-08-13 13:11:12 +03:00
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set(CMAKE_BUILD_TYPE Release CACHE STRING "")
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set(LLVM_ENABLE_RUNTIMES "libcxx;libcxxabi;libunwind" CACHE STRING "")
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2022-01-03 07:51:27 +03:00
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set(CMAKE_SYSTEM_NAME SerenityOS CACHE STRING "")
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Toolchain+Meta: Update LLVM version to 13.0.0
This commit updates the Clang toolchain's version to 13.0.0, which comes
with better C++20 support and improved handling of new features by
clang-format. Due to the newly enabled `-Bsymbolic-functions` flag, our
Clang binaries will only be 2-4% slower than if we dynamically linked
them, but we save hundreds of megabytes of disk space.
The `BuildClang.sh` script has been reworked to build the entire
toolchain in just three steps: one for the compiler, one for GNU
binutils, and one for the runtime libraries. This reduces the complexity
of the build script, and will allow us to modify the CI configuration to
only rebuild the libraries when our libc headers change.
Most of the compile flags have been moved out to a separate CMake cache
file, similarly to how the Android and Fuchsia toolchains are
implemented within the LLVM repo. This provides a nicer interface than
the heaps of command-line arguments.
We no longer build separate toolchains for each architecture, as the
same Clang binary can compile code for multiple targets.
The horrible mess that `SERENITY_CLANG_ARCH` was, has been removed in
this commit. Clang happily accepts an `i686-pc-serenity` target triple,
which matches what our GCC toolchain accepts.
2021-08-13 13:11:12 +03:00
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set(target_triple ${SERENITY_TOOLCHAIN_ARCH}-pc-serenity)
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2022-01-03 00:02:00 +03:00
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IF(${CMAKE_HOST_SYSTEM_NAME} MATCHES "Darwin")
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set(CMAKE_BUILD_WITH_INSTALL_RPATH ON CACHE BOOL "")
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ENDIF()
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Toolchain+Meta: Update LLVM version to 13.0.0
This commit updates the Clang toolchain's version to 13.0.0, which comes
with better C++20 support and improved handling of new features by
clang-format. Due to the newly enabled `-Bsymbolic-functions` flag, our
Clang binaries will only be 2-4% slower than if we dynamically linked
them, but we save hundreds of megabytes of disk space.
The `BuildClang.sh` script has been reworked to build the entire
toolchain in just three steps: one for the compiler, one for GNU
binutils, and one for the runtime libraries. This reduces the complexity
of the build script, and will allow us to modify the CI configuration to
only rebuild the libraries when our libc headers change.
Most of the compile flags have been moved out to a separate CMake cache
file, similarly to how the Android and Fuchsia toolchains are
implemented within the LLVM repo. This provides a nicer interface than
the heaps of command-line arguments.
We no longer build separate toolchains for each architecture, as the
same Clang binary can compile code for multiple targets.
The horrible mess that `SERENITY_CLANG_ARCH` was, has been removed in
this commit. Clang happily accepts an `i686-pc-serenity` target triple,
which matches what our GCC toolchain accepts.
2021-08-13 13:11:12 +03:00
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set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR ON CACHE BOOL "")
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set(LLVM_ENABLE_BINDINGS OFF CACHE BOOL "")
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set(LLVM_INCLUDE_BENCHMARKS OFF CACHE BOOL "")
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set(LLVM_BUILD_UTILS OFF CACHE BOOL "")
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set(LLVM_INCLUDE_TESTS OFF CACHE BOOL "")
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set(LLVM_BUILD_LLVM_DYLIB ON CACHE BOOL "")
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set(LLVM_LINK_LLVM_DYLIB ON CACHE BOOL "")
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set(LLVM_INSTALL_UTILS OFF CACHE BOOL "")
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set(LLVM_INSTALL_TOOLCHAIN_ONLY ON CACHE BOOL "")
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set(LLVM_INSTALL_BINUTILS_SYMLINKS OFF CACHE BOOL "")
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set(LLVM_DEFAULT_TARGET_TRIPLE ${target_triple} CACHE STRING "")
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set(LLVM_BINARY_DIR "${SERENITY_TOOLCHAIN_ROOT}" CACHE PATH "")
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set(CMAKE_SYSROOT "${SERENITY_BUILD_DIR}/Root" CACHE PATH "")
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set(compiler_flags "-nostdlib -nostdlib++")
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set(CMAKE_C_COMPILER "${SERENITY_TOOLCHAIN_ROOT}/bin/clang" CACHE PATH "")
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set(CMAKE_C_COMPILER_WORKS ON CACHE BOOL "")
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set(CMAKE_CXX_COMPILER "${SERENITY_TOOLCHAIN_ROOT}/bin/clang++" CACHE PATH "")
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set(CMAKE_CXX_COMPILER_WORKS ON CACHE BOOL "")
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set(CMAKE_ASM_COMPILER "${SERENITY_TOOLCHAIN_ROOT}/bin/clang" CACHE PATH "")
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set(CMAKE_ASM_COMPILER_WORKS ON CACHE BOOL "")
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set(CMAKE_LINKER "${SERENITY_TOOLCHAIN_ROOT}/bin/ld.lld" CACHE PATH "")
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2021-11-22 00:38:33 +03:00
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set(CMAKE_ADDR2LINE "${SERENITY_TOOLCHAIN_ROOT}/bin/llvm-addr2line" CACHE PATH "")
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set(CMAKE_AR "${SERENITY_TOOLCHAIN_ROOT}/bin/llvm-ar" CACHE PATH "")
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set(CMAKE_NM "${SERENITY_TOOLCHAIN_ROOT}/bin/llvm-nm" CACHE PATH "")
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set(CMAKE_OBJCOPY "${SERENITY_TOOLCHAIN_ROOT}/bin/llvm-objcopy" CACHE PATH "")
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set(CMAKE_OBJDUMP "${SERENITY_TOOLCHAIN_ROOT}/bin/llvm-objdump" CACHE PATH "")
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set(CMAKE_RANLIB "${SERENITY_TOOLCHAIN_ROOT}/bin/llvm-ranlib" CACHE PATH "")
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set(CMAKE_READELF "${SERENITY_TOOLCHAIN_ROOT}/bin/llvm-readelf" CACHE PATH "")
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set(CMAKE_STRIP "${SERENITY_TOOLCHAIN_ROOT}/bin/llvm-strip" CACHE PATH "")
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Toolchain+Meta: Update LLVM version to 13.0.0
This commit updates the Clang toolchain's version to 13.0.0, which comes
with better C++20 support and improved handling of new features by
clang-format. Due to the newly enabled `-Bsymbolic-functions` flag, our
Clang binaries will only be 2-4% slower than if we dynamically linked
them, but we save hundreds of megabytes of disk space.
The `BuildClang.sh` script has been reworked to build the entire
toolchain in just three steps: one for the compiler, one for GNU
binutils, and one for the runtime libraries. This reduces the complexity
of the build script, and will allow us to modify the CI configuration to
only rebuild the libraries when our libc headers change.
Most of the compile flags have been moved out to a separate CMake cache
file, similarly to how the Android and Fuchsia toolchains are
implemented within the LLVM repo. This provides a nicer interface than
the heaps of command-line arguments.
We no longer build separate toolchains for each architecture, as the
same Clang binary can compile code for multiple targets.
The horrible mess that `SERENITY_CLANG_ARCH` was, has been removed in
this commit. Clang happily accepts an `i686-pc-serenity` target triple,
which matches what our GCC toolchain accepts.
2021-08-13 13:11:12 +03:00
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set(CMAKE_C_COMPILER_TARGET ${target_triple} CACHE STRING "")
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set(CMAKE_CXX_COMPILER_TARGET ${target_triple} CACHE STRING "")
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set(CMAKE_ASM_COMPILER_TARGET ${target_triple} CACHE STRING "")
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set(CMAKE_C_FLAGS ${compiler_flags} CACHE STRING "")
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set(CMAKE_CXX_FLAGS ${compiler_flags} CACHE STRING "")
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set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
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set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
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set(LIBCXX_INCLUDE_BENCHMARKS OFF CACHE BOOL "")
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if (NOT "${SERENITY_TOOLCHAIN_ARCH}" STREQUAL "aarch64")
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set(LIBCXX_HAS_M_LIB ON CACHE BOOL "")
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endif()
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set(LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
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set(LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
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