From: Valentin Korenblit Date: Wed, 11 Apr 2018 16:14:49 +0000 (+0200) Subject: package/clang: new package X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=86defeeab61728fc29639110a3c28a2824294bdb;p=buildroot.git package/clang: new package This patch provides Clang tools and libraries for the host and libclang for the target. host-clang is needed to build libclc, which is provided in a follow-up patch. We need libclang for the target because it is used by most of OpenCL implementations. A later patch in this series will enable Clover, the OpenCL implementation part of Mesa3D, which requires libclang. clang-tblgen must be copied to HOST_DIR as it is not installed by default but is needed for cross-compilation: http://lists.llvm.org/pipermail/cfe-dev/2015-June/043318.html Signed-off-by: Valentin Korenblit [Thomas: - Add Config.in comment about BR2_TOOLCHAIN_HAS_GCC_BUG_64735 - Minor reformatting/rewrapping of comments in .mk file] Signed-off-by: Thomas Petazzoni --- diff --git a/DEVELOPERS b/DEVELOPERS index 25edcf97b3..b281245df2 100644 --- a/DEVELOPERS +++ b/DEVELOPERS @@ -1912,6 +1912,7 @@ F: package/dropwatch/ F: package/tstools/ N: Valentin Korenblit +F: package/clang/ F: package/llvm/ N: Vanya Sergeev diff --git a/package/Config.in b/package/Config.in index 8614a9b216..66f6d10058 100644 --- a/package/Config.in +++ b/package/Config.in @@ -1485,6 +1485,7 @@ menu "Other" source "package/bctoolbox/Config.in" source "package/bdwgc/Config.in" source "package/boost/Config.in" + source "package/clang/Config.in" source "package/clapack/Config.in" source "package/classpath/Config.in" source "package/cppcms/Config.in" diff --git a/package/clang/Config.in b/package/clang/Config.in new file mode 100644 index 0000000000..80f03c80b7 --- /dev/null +++ b/package/clang/Config.in @@ -0,0 +1,26 @@ +config BR2_PACKAGE_CLANG + bool "clang" + depends on BR2_PACKAGE_LLVM_ARCH_SUPPORTS + depends on BR2_HOST_GCC_AT_LEAST_4_8 + depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 + depends on BR2_TOOLCHAIN_HAS_THREADS + depends on BR2_INSTALL_LIBSTDCPP + depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # std::shared_future + depends on !BR2_STATIC_LIBS + depends on BR2_USE_WCHAR # std::wstring + select BR2_PACKAGE_LLVM + help + Clang is a C/C++, Objective C/C++ and OpenCL C front-end + for the LLVM compiler. + + http://clang.llvm.org + +comment "clang needs a toolchain w/ wchar, threads, C++, gcc >= 4.8, host gcc >= 4.8, dynamic library" + depends on BR2_PACKAGE_LLVM_ARCH_SUPPORTS + depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_INSTALL_LIBSTDCPP || \ + !BR2_HOST_GCC_AT_LEAST_4_8 || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 \ + || BR2_STATIC_LIBS || !BR2_USE_WCHAR + +comment "clang needs a toolchain not affected by GCC bug 64735" + depends on BR2_PACKAGE_LLVM_ARCH_SUPPORTS + depends on BR2_TOOLCHAIN_HAS_GCC_BUG_64735 diff --git a/package/clang/clang.hash b/package/clang/clang.hash new file mode 100644 index 0000000000..a5bf909814 --- /dev/null +++ b/package/clang/clang.hash @@ -0,0 +1,3 @@ +# locally calculated +sha256 135f6c9b0cd2da1aff2250e065946258eb699777888df39ca5a5b4fe5e23d0ff cfe-5.0.1.src.tar.xz +sha256 de4c79665f0f5688b0ace17cba6f8e0343925bb95e0949d66d47bbd4527310d6 LICENSE.TXT diff --git a/package/clang/clang.mk b/package/clang/clang.mk new file mode 100644 index 0000000000..88bce9af0b --- /dev/null +++ b/package/clang/clang.mk @@ -0,0 +1,74 @@ +################################################################################ +# +# clang +# +################################################################################ + +CLANG_VERSION = 5.0.1 +CLANG_SITE = http://llvm.org/releases/$(CLANG_VERSION) +CLANG_SOURCE = cfe-$(CLANG_VERSION).src.tar.xz +CLANG_LICENSE = NCSA +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 + +# 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. +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_CONFIG:FILEPATH=$(HOST_DIR)/bin/llvm-config +CLANG_CONF_OPTS += -DLLVM_CONFIG:FILEPATH=$(STAGING_DIR)/usr/bin/llvm-config \ + -DCLANG_TABLEGEN:FILEPATH=$(HOST_DIR)/usr/bin/clang-tblgen \ + -DLLVM_TABLEGEN_EXE:FILEPATH=$(HOST_DIR)/usr/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 from target. +define CLANG_DELETE_BINARIES_FROM_TARGET + rm -f $(TARGET_DIR)/usr/bin/clang* +endef +CLANG_POST_INSTALL_TARGET_HOOKS += CLANG_DELETE_BINARIES_FROM_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 \ + $(HOST_DIR)/usr/bin/clang-tblgen +endef +HOST_CLANG_POST_INSTALL_HOOKS = HOST_CLANG_INSTALL_CLANG_TBLGEN + +$(eval $(cmake-package)) +$(eval $(host-cmake-package))