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- ################################################################################
- #
- # clang
- #
- ################################################################################
- # LLVM, Clang and lld should be version bumped together
- CLANG_VERSION = 9.0.1
- CLANG_SITE = https://github.com/llvm/llvm-project/releases/download/llvmorg-$(CLANG_VERSION)
- CLANG_SOURCE = clang-$(CLANG_VERSION).src.tar.xz
- CLANG_LICENSE = Apache-2.0 with exceptions
- CLANG_LICENSE_FILES = LICENSE.TXT
- CLANG_SUPPORTS_IN_SOURCE_BUILD = NO
- CLANG_INSTALL_STAGING = YES
- HOST_CLANG_DEPENDENCIES = host-llvm host-libxml2
- CLANG_DEPENDENCIES = llvm host-clang
- # LLVM >= 9.0 will soon require C++14 support, building llvm 8.x using a
- # toolchain using gcc < 5.1 gives an error but actually still works. Setting
- # this option makes it still build with gcc >= 4.8.
- # https://reviews.llvm.org/D57264
- HOST_CLANG_CONF_OPTS += -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON
- CLANG_CONF_OPTS += -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON
- # This option is needed, otherwise multiple shared libs
- # (libclangAST.so, libclangBasic.so, libclangFrontend.so, etc.) will
- # be generated. As a final shared lib containing all these components
- # (libclang.so) is also generated, this resulted in the following
- # error when trying to use tools that use libclang:
- # $ CommandLine Error: Option 'track-memory' registered more than once!
- # $ LLVM ERROR: inconsistency in registered CommandLine options
- # By setting BUILD_SHARED_LIBS to OFF, we generate multiple static
- # libraries (the same way as host's clang build) and finally
- # libclang.so to be installed on the target.
- HOST_CLANG_CONF_OPTS += -DBUILD_SHARED_LIBS=OFF
- CLANG_CONF_OPTS += -DBUILD_SHARED_LIBS=OFF
- # Default is Debug build, which requires considerably more disk space
- # and build time. Release build is selected for host and target
- # because the linker can run out of memory in Debug mode.
- HOST_CLANG_CONF_OPTS += -DCMAKE_BUILD_TYPE=Release
- CLANG_CONF_OPTS += -DCMAKE_BUILD_TYPE=Release
- CLANG_CONF_OPTS += -DCMAKE_CROSSCOMPILING=1
- # We need to build tools because libclang is a tool
- HOST_CLANG_CONF_OPTS += -DCLANG_BUILD_TOOLS=ON
- CLANG_CONF_OPTS += -DCLANG_BUILD_TOOLS=ON
- HOST_CLANG_CONF_OPTS += \
- -DCLANG_BUILD_EXAMPLES=OFF \
- -DCLANG_INCLUDE_DOCS=OFF \
- -DCLANG_INCLUDE_TESTS=OFF
- CLANG_CONF_OPTS += \
- -DCLANG_BUILD_EXAMPLES=OFF \
- -DCLANG_INCLUDE_DOCS=OFF \
- -DCLANG_INCLUDE_TESTS=OFF
- HOST_CLANG_CONF_OPTS += -DLLVM_DIR=$(HOST_DIR)/lib/cmake/llvm \
- -DCLANG_DEFAULT_LINKER=$(TARGET_LD)
- CLANG_CONF_OPTS += -DLLVM_DIR=$(STAGING_DIR)/usr/lib/cmake/llvm \
- -DCLANG_TABLEGEN:FILEPATH=$(HOST_DIR)/bin/clang-tblgen \
- -DLLVM_TABLEGEN_EXE:FILEPATH=$(HOST_DIR)/bin/llvm-tblgen
- # Clang can't be used as compiler on the target since there are no
- # development files (headers) and other build tools. So remove clang
- # binaries and some other unnecessary files from target.
- CLANG_FILES_TO_REMOVE = \
- /usr/bin/clang* \
- /usr/bin/c-index-test \
- /usr/bin/git-clang-format \
- /usr/bin/scan-build \
- /usr/bin/scan-view \
- /usr/libexec/c++-analyzer \
- /usr/libexec/ccc-analyzer \
- /usr/share/clang \
- /usr/share/opt-viewer \
- /usr/share/scan-build \
- /usr/share/scan-view \
- /usr/share/man/man1/scan-build.1 \
- /usr/lib/clang
- define CLANG_CLEANUP_TARGET
- rm -rf $(addprefix $(TARGET_DIR),$(CLANG_FILES_TO_REMOVE))
- endef
- CLANG_POST_INSTALL_TARGET_HOOKS += CLANG_CLEANUP_TARGET
- # clang-tblgen is not installed by default, however it is necessary
- # for cross-compiling clang
- define HOST_CLANG_INSTALL_CLANG_TBLGEN
- $(INSTALL) -D -m 0755 $(HOST_CLANG_BUILDDIR)/bin/clang-tblgen \
- $(HOST_DIR)/bin/clang-tblgen
- endef
- HOST_CLANG_POST_INSTALL_HOOKS = HOST_CLANG_INSTALL_CLANG_TBLGEN
- # This option must be enabled to link libclang dynamically against libLLVM.so
- HOST_CLANG_CONF_OPTS += -DLLVM_LINK_LLVM_DYLIB=ON
- CLANG_CONF_OPTS += -DLLVM_LINK_LLVM_DYLIB=ON
- # Prevent clang binaries from linking against LLVM static libs
- HOST_CLANG_CONF_OPTS += -DLLVM_DYLIB_COMPONENTS=all
- CLANG_CONF_OPTS += -DLLVM_DYLIB_COMPONENTS=all
- $(eval $(cmake-package))
- $(eval $(host-cmake-package))
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