ff495fd1a1
LLVM builds bindings for other languages such as Go and OCaml when the
appropriate dependencies can be found. We currently don't support
building these bindings in Buildroot, as they're currently unused by any
package.
Building these bindings was originally disabled by overriding the
dependencies with values indicating that they were not found.
Newer versions of LLVM no longer disable the OCaml bindings when overriding
OCAMLFIND. Consequently, the build process attempts to install the bindings
to the default location on the host of /usr/lib/ocaml/llvm, causing a
permissions error and build failure.
Additionally, LLVM has since added the variable LLVM_ENABLE_BINDINGS to
control whether bindings are enabled, so we override that to disable the
bindings.
Signed-off-by: Joseph Kogut <joseph.kogut@gmail.com>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit e6a1ee9a8a)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
301 lines
11 KiB
Makefile
301 lines
11 KiB
Makefile
################################################################################
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#
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# llvm
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#
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################################################################################
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# LLVM, Clang and lld should be version bumped together
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LLVM_VERSION = 9.0.1
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LLVM_SITE = https://github.com/llvm/llvm-project/releases/download/llvmorg-$(LLVM_VERSION)
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LLVM_SOURCE = llvm-$(LLVM_VERSION).src.tar.xz
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LLVM_LICENSE = Apache-2.0 with exceptions
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LLVM_LICENSE_FILES = LICENSE.TXT
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LLVM_SUPPORTS_IN_SOURCE_BUILD = NO
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LLVM_INSTALL_STAGING = YES
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# LLVM >= 9.0 can use python3 to build.
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HOST_LLVM_DEPENDENCIES = host-python3
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LLVM_DEPENDENCIES = host-llvm
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# LLVM >= 9.0 will soon require C++14 support, building llvm 8.x using a
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# toolchain using gcc < 5.1 gives an error but actually still works. Setting
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# this option makes it still build with gcc >= 4.8.
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# https://reviews.llvm.org/D57264
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HOST_LLVM_CONF_OPTS += -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON
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LLVM_CONF_OPTS += -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON
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# Don't build clang libcxx libcxxabi lldb compiler-rt lld polly as llvm subprojects
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# This flag assumes that projects are checked out side-by-side and not nested
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_PROJECTS=""
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LLVM_CONF_OPTS += -DLLVM_ENABLE_PROJECTS=""
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HOST_LLVM_CONF_OPTS += -DLLVM_CCACHE_BUILD=$(if $(BR2_CCACHE),ON,OFF)
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LLVM_CONF_OPTS += -DLLVM_CCACHE_BUILD=$(if $(BR2_CCACHE),ON,OFF)
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# This option prevents AddLLVM.cmake from adding $ORIGIN/../lib to
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# binaries. Otherwise, llvm-config (host variant installed in STAGING)
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# will try to use target's libc.
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HOST_LLVM_CONF_OPTS += -DCMAKE_INSTALL_RPATH="$(HOST_DIR)/lib"
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# Get target architecture
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LLVM_TARGET_ARCH = $(call qstrip,$(BR2_PACKAGE_LLVM_TARGET_ARCH))
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# Build backend for target architecture. This include backends like AMDGPU.
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LLVM_TARGETS_TO_BUILD = $(LLVM_TARGET_ARCH)
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HOST_LLVM_CONF_OPTS += -DLLVM_TARGETS_TO_BUILD="$(subst $(space),;,$(LLVM_TARGETS_TO_BUILD))"
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LLVM_CONF_OPTS += -DLLVM_TARGETS_TO_BUILD="$(subst $(space),;,$(LLVM_TARGETS_TO_BUILD))"
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# LLVM target to use for native code generation. This is required for JIT generation.
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# It must be set to LLVM_TARGET_ARCH for host and target, otherwise we get
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# "No available targets are compatible for this triple" with llvmpipe when host
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# and target architectures are different.
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HOST_LLVM_CONF_OPTS += -DLLVM_TARGET_ARCH=$(LLVM_TARGET_ARCH)
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LLVM_CONF_OPTS += -DLLVM_TARGET_ARCH=$(LLVM_TARGET_ARCH)
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# Build AMDGPU backend
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# We need to build AMDGPU backend for both host and target because
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# llvm-config --targets built (host variant installed in STAGING) will
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# output only $(LLVM_TARGET_ARCH) if not, and mesa3d won't build as
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# it thinks AMDGPU backend is not installed on the target.
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ifeq ($(BR2_PACKAGE_LLVM_AMDGPU),y)
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LLVM_TARGETS_TO_BUILD += AMDGPU
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endif
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# Use native llvm-tblgen from host-llvm (needed for cross-compilation)
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LLVM_CONF_OPTS += -DLLVM_TABLEGEN=$(HOST_DIR)/bin/llvm-tblgen
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# Use native llvm-config from host-llvm (needed for cross-compilation)
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LLVM_CONF_OPTS += -DLLVM_CONFIG_PATH=$(HOST_DIR)/bin/llvm-config
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# BUILD_SHARED_LIBS has a misleading name. It is in fact an option for
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# LLVM developers to build all LLVM libraries as separate shared libraries.
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# For normal use of LLVM, it is recommended to build a single
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# shared library, which is achieved by BUILD_SHARED_LIBS=OFF and
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# LLVM_BUILD_LLVM_DYLIB=ON.
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HOST_LLVM_CONF_OPTS += -DBUILD_SHARED_LIBS=OFF
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LLVM_CONF_OPTS += -DBUILD_SHARED_LIBS=OFF
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# Generate libLLVM.so. This library contains a default set of LLVM components
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# that can be overwritten with "LLVM_DYLIB_COMPONENTS". The default contains
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# most of LLVM and is defined in "tools/llvm-shlib/CMakelists.txt".
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HOST_LLVM_CONF_OPTS += -DLLVM_BUILD_LLVM_DYLIB=ON
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LLVM_CONF_OPTS += -DLLVM_BUILD_LLVM_DYLIB=ON
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# LLVM_BUILD_LLVM_DYLIB to ON. We need to enable this option for the
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# host as llvm-config for the host will be used in STAGING_DIR by packages
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# linking against libLLVM and if this option is not selected, then llvm-config
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# does not work properly. For example, it assumes that LLVM is built statically
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# and cannot find libLLVM.so.
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HOST_LLVM_CONF_OPTS += -DLLVM_LINK_LLVM_DYLIB=ON
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LLVM_CONF_OPTS += -DLLVM_LINK_LLVM_DYLIB=ON
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LLVM_CONF_OPTS += -DCMAKE_CROSSCOMPILING=1
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# Disabled for the host since no host-libedit.
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# Fall back to "Simple fgets-based implementation" of llvm line editor.
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBEDIT=OFF
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LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBEDIT=OFF
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# We want to install llvm libraries and modules.
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HOST_LLVM_CONF_OPTS += -DLLVM_INSTALL_TOOLCHAIN_ONLY=OFF
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LLVM_CONF_OPTS += -DLLVM_INSTALL_TOOLCHAIN_ONLY=OFF
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# We build from a release archive without vcs files.
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HOST_LLVM_CONF_OPTS += -DLLVM_APPEND_VC_REV=OFF
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LLVM_CONF_OPTS += -DLLVM_APPEND_VC_REV=OFF
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# No backtrace package in Buildroot.
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# https://documentation.backtrace.io
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_BACKTRACES=OFF
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LLVM_CONF_OPTS += -DLLVM_ENABLE_BACKTRACES=OFF
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# Enable signal handlers overrides support.
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HOST_LLVM_CONF_OPTS += -DENABLE_CRASH_OVERRIDES=ON
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LLVM_CONF_OPTS += -DENABLE_CRASH_OVERRIDES=ON
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# Disable ffi for now.
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_FFI=OFF
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LLVM_CONF_OPTS += -DLLVM_ENABLE_FFI=OFF
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# Disable terminfo database (needs ncurses libtinfo.so)
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_TERMINFO=OFF
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LLVM_CONF_OPTS += -DLLVM_ENABLE_TERMINFO=OFF
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# Enable thread support
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_THREADS=ON
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LLVM_CONF_OPTS += -DLLVM_ENABLE_THREADS=ON
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# Enable optional host-zlib support for LLVM Machine Code (llvm-mc) to add
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# compression/uncompression capabilities.
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# Not needed on the target.
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_ZLIB=ON
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HOST_LLVM_DEPENDENCIES += host-zlib
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LLVM_CONF_OPTS += -DLLVM_ENABLE_ZLIB=OFF
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# libxml2 can be disabled as it is used for LLVM Windows builds where COFF
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# files include manifest info
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBXML2=OFF
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LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBXML2=OFF
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# Disable optional Z3Prover since there is no such package in Buildroot.
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_Z3_SOLVER=OFF
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LLVM_CONF_OPTS += -DLLVM_ENABLE_Z3_SOLVER=OFF
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# We don't use llvm for static only build, so enable PIC
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_PIC=ON
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LLVM_CONF_OPTS += -DLLVM_ENABLE_PIC=ON
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# Default is Debug build, which requires considerably more disk space and
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# build time. Release build is selected for host and target because the linker
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# can run out of memory in Debug mode.
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HOST_LLVM_CONF_OPTS += -DCMAKE_BUILD_TYPE=Release
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LLVM_CONF_OPTS += -DCMAKE_BUILD_TYPE=Release
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# Disable C++1y (ISO C++ 2014 standard)
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# Disable C++1z (ISO C++ 2017 standard)
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# Compile llvm with the C++11 (ISO C++ 2011 standard) which is the fallback.
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HOST_LLVM_CONF_OPTS += \
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-DLLVM_ENABLE_CXX1Y=OFF \
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-DLLVM_ENABLE_CXX1Z=OFF
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LLVM_CONF_OPTS += \
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-DLLVM_ENABLE_CXX1Y=OFF \
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-DLLVM_ENABLE_CXX1Z=OFF
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# Disabled, requires sys/ndir.h header
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# Disable debug in module
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HOST_LLVM_CONF_OPTS += \
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-DLLVM_ENABLE_MODULES=OFF \
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-DLLVM_ENABLE_MODULE_DEBUGGING=OFF
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LLVM_CONF_OPTS += \
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-DLLVM_ENABLE_MODULES=OFF \
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-DLLVM_ENABLE_MODULE_DEBUGGING=OFF
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# Don't change the standard library to libc++.
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBCXX=OFF
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LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBCXX=OFF
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# Don't use lld as a linker.
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_LLD=OFF
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LLVM_CONF_OPTS += -DLLVM_ENABLE_LLD=OFF
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# Generate code for the target. LLVM selects a target by looking at the
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# toolchain tuple
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HOST_LLVM_CONF_OPTS += -DLLVM_DEFAULT_TARGET_TRIPLE=$(GNU_TARGET_NAME)
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LLVM_CONF_OPTS += -DLLVM_DEFAULT_TARGET_TRIPLE=$(GNU_TARGET_NAME)
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# LLVM_HOST_TRIPLE has a misleading name, it is in fact the triple of the
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# system where llvm is going to run on. We need to specify triple for native
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# code generation on the target.
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# This solves "No available targets are compatible for this triple" with llvmpipe
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LLVM_CONF_OPTS += -DLLVM_HOST_TRIPLE=$(GNU_TARGET_NAME)
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# The Go bindings have no CMake rules at the moment, but better remove the
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# check preventively. Building the Go and OCaml bindings is yet unsupported.
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HOST_LLVM_CONF_OPTS += \
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-DGO_EXECUTABLE=GO_EXECUTABLE-NOTFOUND \
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-DOCAMLFIND=OCAMLFIND-NOTFOUND \
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-DLLVM_ENABLE_BINDINGS=OFF
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# Builds a release host tablegen that gets used during the LLVM build.
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HOST_LLVM_CONF_OPTS += -DLLVM_OPTIMIZED_TABLEGEN=ON
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# Keep llvm utility binaries for the host. llvm-tblgen is built anyway as
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# CMakeLists.txt has add_subdirectory(utils/TableGen) unconditionally.
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HOST_LLVM_CONF_OPTS += \
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-DLLVM_BUILD_UTILS=ON \
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-DLLVM_INCLUDE_UTILS=ON \
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-DLLVM_INSTALL_UTILS=ON
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LLVM_CONF_OPTS += \
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-DLLVM_BUILD_UTILS=OFF \
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-DLLVM_INCLUDE_UTILS=OFF \
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-DLLVM_INSTALL_UTILS=OFF
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HOST_LLVM_CONF_OPTS += \
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-DLLVM_INCLUDE_TOOLS=ON \
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-DLLVM_BUILD_TOOLS=ON
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# We need to activate LLVM_INCLUDE_TOOLS, otherwise it does not generate
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# libLLVM.so
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LLVM_CONF_OPTS += \
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-DLLVM_INCLUDE_TOOLS=ON \
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-DLLVM_BUILD_TOOLS=OFF
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ifeq ($(BR2_PACKAGE_LLVM_RTTI),y)
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=ON
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LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=ON
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else
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HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=OFF
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LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=OFF
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endif
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# Compiler-rt not in the source tree.
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# llvm runtime libraries are not in the source tree.
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# Polly is not in the source tree.
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HOST_LLVM_CONF_OPTS += \
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-DLLVM_BUILD_EXTERNAL_COMPILER_RT=OFF \
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-DLLVM_BUILD_RUNTIME=OFF \
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-DLLVM_INCLUDE_RUNTIMES=OFF \
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-DLLVM_POLLY_BUILD=OFF
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LLVM_CONF_OPTS += \
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-DLLVM_BUILD_EXTERNAL_COMPILER_RT=OFF \
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-DLLVM_BUILD_RUNTIME=OFF \
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-DLLVM_INCLUDE_RUNTIMES=OFF \
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-DLLVM_POLLY_BUILD=OFF
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HOST_LLVM_CONF_OPTS += \
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-DLLVM_ENABLE_WARNINGS=ON \
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-DLLVM_ENABLE_PEDANTIC=ON \
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-DLLVM_ENABLE_WERROR=OFF
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LLVM_CONF_OPTS += \
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-DLLVM_ENABLE_WARNINGS=ON \
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-DLLVM_ENABLE_PEDANTIC=ON \
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-DLLVM_ENABLE_WERROR=OFF
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HOST_LLVM_CONF_OPTS += \
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-DLLVM_BUILD_EXAMPLES=OFF \
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-DLLVM_BUILD_DOCS=OFF \
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-DLLVM_BUILD_TESTS=OFF \
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-DLLVM_ENABLE_DOXYGEN=OFF \
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-DLLVM_ENABLE_OCAMLDOC=OFF \
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-DLLVM_ENABLE_SPHINX=OFF \
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-DLLVM_INCLUDE_EXAMPLES=OFF \
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-DLLVM_INCLUDE_DOCS=OFF \
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-DLLVM_INCLUDE_GO_TESTS=OFF \
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-DLLVM_INCLUDE_TESTS=OFF
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LLVM_CONF_OPTS += \
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-DLLVM_BUILD_EXAMPLES=OFF \
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-DLLVM_BUILD_DOCS=OFF \
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-DLLVM_BUILD_TESTS=OFF \
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-DLLVM_ENABLE_DOXYGEN=OFF \
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-DLLVM_ENABLE_OCAMLDOC=OFF \
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-DLLVM_ENABLE_SPHINX=OFF \
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-DLLVM_INCLUDE_EXAMPLES=OFF \
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-DLLVM_INCLUDE_DOCS=OFF \
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-DLLVM_INCLUDE_GO_TESTS=OFF \
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-DLLVM_INCLUDE_TESTS=OFF
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# Copy llvm-config (host variant) to STAGING_DIR
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# llvm-config (host variant) returns include and lib directories
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# for the host if it's installed in host/bin:
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# output/host/bin/llvm-config --includedir
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# output/host/include
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# When installed in STAGING_DIR, llvm-config returns include and lib
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# directories from STAGING_DIR.
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# output/staging/usr/bin/llvm-config --includedir
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# output/staging/usr/include
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define HOST_LLVM_COPY_LLVM_CONFIG_TO_STAGING_DIR
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$(INSTALL) -D -m 0755 $(HOST_DIR)/bin/llvm-config \
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$(STAGING_DIR)/usr/bin/llvm-config
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endef
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HOST_LLVM_POST_INSTALL_HOOKS = HOST_LLVM_COPY_LLVM_CONFIG_TO_STAGING_DIR
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# By default llvm-tblgen is built and installed on the target but it is
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# not necessary. Also erase LLVMHello.so from /usr/lib
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define LLVM_DELETE_LLVM_TBLGEN_TARGET
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rm -f $(TARGET_DIR)/usr/bin/llvm-tblgen $(TARGET_DIR)/usr/lib/LLVMHello.so
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endef
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LLVM_POST_INSTALL_TARGET_HOOKS = LLVM_DELETE_LLVM_TBLGEN_TARGET
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$(eval $(cmake-package))
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$(eval $(host-cmake-package))
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