llvm.mk 11 KB

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  1. ################################################################################
  2. #
  3. # llvm
  4. #
  5. ################################################################################
  6. # LLVM, Clang and lld should be version bumped together
  7. LLVM_VERSION = 9.0.1
  8. LLVM_SITE = https://github.com/llvm/llvm-project/releases/download/llvmorg-$(LLVM_VERSION)
  9. LLVM_SOURCE = llvm-$(LLVM_VERSION).src.tar.xz
  10. LLVM_LICENSE = Apache-2.0 with exceptions
  11. LLVM_LICENSE_FILES = LICENSE.TXT
  12. LLVM_SUPPORTS_IN_SOURCE_BUILD = NO
  13. LLVM_INSTALL_STAGING = YES
  14. # LLVM >= 9.0 can use python3 to build.
  15. HOST_LLVM_DEPENDENCIES = host-python3
  16. LLVM_DEPENDENCIES = host-llvm
  17. # LLVM >= 9.0 will soon require C++14 support, building llvm 8.x using a
  18. # toolchain using gcc < 5.1 gives an error but actually still works. Setting
  19. # this option makes it still build with gcc >= 4.8.
  20. # https://reviews.llvm.org/D57264
  21. HOST_LLVM_CONF_OPTS += -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON
  22. LLVM_CONF_OPTS += -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON
  23. # Don't build clang libcxx libcxxabi lldb compiler-rt lld polly as llvm subprojects
  24. # This flag assumes that projects are checked out side-by-side and not nested
  25. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_PROJECTS=""
  26. LLVM_CONF_OPTS += -DLLVM_ENABLE_PROJECTS=""
  27. HOST_LLVM_CONF_OPTS += -DLLVM_CCACHE_BUILD=$(if $(BR2_CCACHE),ON,OFF)
  28. LLVM_CONF_OPTS += -DLLVM_CCACHE_BUILD=$(if $(BR2_CCACHE),ON,OFF)
  29. # This option prevents AddLLVM.cmake from adding $ORIGIN/../lib to
  30. # binaries. Otherwise, llvm-config (host variant installed in STAGING)
  31. # will try to use target's libc.
  32. HOST_LLVM_CONF_OPTS += -DCMAKE_INSTALL_RPATH="$(HOST_DIR)/lib"
  33. # Get target architecture
  34. LLVM_TARGET_ARCH = $(call qstrip,$(BR2_PACKAGE_LLVM_TARGET_ARCH))
  35. # Build backend for target architecture. This include backends like AMDGPU.
  36. LLVM_TARGETS_TO_BUILD = $(LLVM_TARGET_ARCH)
  37. HOST_LLVM_CONF_OPTS += -DLLVM_TARGETS_TO_BUILD="$(subst $(space),;,$(LLVM_TARGETS_TO_BUILD))"
  38. LLVM_CONF_OPTS += -DLLVM_TARGETS_TO_BUILD="$(subst $(space),;,$(LLVM_TARGETS_TO_BUILD))"
  39. # LLVM target to use for native code generation. This is required for JIT generation.
  40. # It must be set to LLVM_TARGET_ARCH for host and target, otherwise we get
  41. # "No available targets are compatible for this triple" with llvmpipe when host
  42. # and target architectures are different.
  43. HOST_LLVM_CONF_OPTS += -DLLVM_TARGET_ARCH=$(LLVM_TARGET_ARCH)
  44. LLVM_CONF_OPTS += -DLLVM_TARGET_ARCH=$(LLVM_TARGET_ARCH)
  45. # Build AMDGPU backend
  46. # We need to build AMDGPU backend for both host and target because
  47. # llvm-config --targets built (host variant installed in STAGING) will
  48. # output only $(LLVM_TARGET_ARCH) if not, and mesa3d won't build as
  49. # it thinks AMDGPU backend is not installed on the target.
  50. ifeq ($(BR2_PACKAGE_LLVM_AMDGPU),y)
  51. LLVM_TARGETS_TO_BUILD += AMDGPU
  52. endif
  53. # Use native llvm-tblgen from host-llvm (needed for cross-compilation)
  54. LLVM_CONF_OPTS += -DLLVM_TABLEGEN=$(HOST_DIR)/bin/llvm-tblgen
  55. # Use native llvm-config from host-llvm (needed for cross-compilation)
  56. LLVM_CONF_OPTS += -DLLVM_CONFIG_PATH=$(HOST_DIR)/bin/llvm-config
  57. # BUILD_SHARED_LIBS has a misleading name. It is in fact an option for
  58. # LLVM developers to build all LLVM libraries as separate shared libraries.
  59. # For normal use of LLVM, it is recommended to build a single
  60. # shared library, which is achieved by BUILD_SHARED_LIBS=OFF and
  61. # LLVM_BUILD_LLVM_DYLIB=ON.
  62. HOST_LLVM_CONF_OPTS += -DBUILD_SHARED_LIBS=OFF
  63. LLVM_CONF_OPTS += -DBUILD_SHARED_LIBS=OFF
  64. # Generate libLLVM.so. This library contains a default set of LLVM components
  65. # that can be overwritten with "LLVM_DYLIB_COMPONENTS". The default contains
  66. # most of LLVM and is defined in "tools/llvm-shlib/CMakelists.txt".
  67. HOST_LLVM_CONF_OPTS += -DLLVM_BUILD_LLVM_DYLIB=ON
  68. LLVM_CONF_OPTS += -DLLVM_BUILD_LLVM_DYLIB=ON
  69. # LLVM_BUILD_LLVM_DYLIB to ON. We need to enable this option for the
  70. # host as llvm-config for the host will be used in STAGING_DIR by packages
  71. # linking against libLLVM and if this option is not selected, then llvm-config
  72. # does not work properly. For example, it assumes that LLVM is built statically
  73. # and cannot find libLLVM.so.
  74. HOST_LLVM_CONF_OPTS += -DLLVM_LINK_LLVM_DYLIB=ON
  75. LLVM_CONF_OPTS += -DLLVM_LINK_LLVM_DYLIB=ON
  76. LLVM_CONF_OPTS += -DCMAKE_CROSSCOMPILING=1
  77. # Disabled for the host since no host-libedit.
  78. # Fall back to "Simple fgets-based implementation" of llvm line editor.
  79. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBEDIT=OFF
  80. LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBEDIT=OFF
  81. # We want to install llvm libraries and modules.
  82. HOST_LLVM_CONF_OPTS += -DLLVM_INSTALL_TOOLCHAIN_ONLY=OFF
  83. LLVM_CONF_OPTS += -DLLVM_INSTALL_TOOLCHAIN_ONLY=OFF
  84. # We build from a release archive without vcs files.
  85. HOST_LLVM_CONF_OPTS += -DLLVM_APPEND_VC_REV=OFF
  86. LLVM_CONF_OPTS += -DLLVM_APPEND_VC_REV=OFF
  87. # No backtrace package in Buildroot.
  88. # https://documentation.backtrace.io
  89. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_BACKTRACES=OFF
  90. LLVM_CONF_OPTS += -DLLVM_ENABLE_BACKTRACES=OFF
  91. # Enable signal handlers overrides support.
  92. HOST_LLVM_CONF_OPTS += -DENABLE_CRASH_OVERRIDES=ON
  93. LLVM_CONF_OPTS += -DENABLE_CRASH_OVERRIDES=ON
  94. # Disable ffi for now.
  95. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_FFI=OFF
  96. LLVM_CONF_OPTS += -DLLVM_ENABLE_FFI=OFF
  97. # Disable terminfo database (needs ncurses libtinfo.so)
  98. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_TERMINFO=OFF
  99. LLVM_CONF_OPTS += -DLLVM_ENABLE_TERMINFO=OFF
  100. # Enable thread support
  101. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_THREADS=ON
  102. LLVM_CONF_OPTS += -DLLVM_ENABLE_THREADS=ON
  103. # Enable optional host-zlib support for LLVM Machine Code (llvm-mc) to add
  104. # compression/uncompression capabilities.
  105. # Not needed on the target.
  106. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_ZLIB=ON
  107. HOST_LLVM_DEPENDENCIES += host-zlib
  108. LLVM_CONF_OPTS += -DLLVM_ENABLE_ZLIB=OFF
  109. # libxml2 can be disabled as it is used for LLVM Windows builds where COFF
  110. # files include manifest info
  111. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBXML2=OFF
  112. LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBXML2=OFF
  113. # Disable optional Z3Prover since there is no such package in Buildroot.
  114. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_Z3_SOLVER=OFF
  115. LLVM_CONF_OPTS += -DLLVM_ENABLE_Z3_SOLVER=OFF
  116. # We don't use llvm for static only build, so enable PIC
  117. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_PIC=ON
  118. LLVM_CONF_OPTS += -DLLVM_ENABLE_PIC=ON
  119. # Default is Debug build, which requires considerably more disk space and
  120. # build time. Release build is selected for host and target because the linker
  121. # can run out of memory in Debug mode.
  122. HOST_LLVM_CONF_OPTS += -DCMAKE_BUILD_TYPE=Release
  123. LLVM_CONF_OPTS += -DCMAKE_BUILD_TYPE=Release
  124. # Disable C++1y (ISO C++ 2014 standard)
  125. # Disable C++1z (ISO C++ 2017 standard)
  126. # Compile llvm with the C++11 (ISO C++ 2011 standard) which is the fallback.
  127. HOST_LLVM_CONF_OPTS += \
  128. -DLLVM_ENABLE_CXX1Y=OFF \
  129. -DLLVM_ENABLE_CXX1Z=OFF
  130. LLVM_CONF_OPTS += \
  131. -DLLVM_ENABLE_CXX1Y=OFF \
  132. -DLLVM_ENABLE_CXX1Z=OFF
  133. # Disabled, requires sys/ndir.h header
  134. # Disable debug in module
  135. HOST_LLVM_CONF_OPTS += \
  136. -DLLVM_ENABLE_MODULES=OFF \
  137. -DLLVM_ENABLE_MODULE_DEBUGGING=OFF
  138. LLVM_CONF_OPTS += \
  139. -DLLVM_ENABLE_MODULES=OFF \
  140. -DLLVM_ENABLE_MODULE_DEBUGGING=OFF
  141. # Don't change the standard library to libc++.
  142. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBCXX=OFF
  143. LLVM_CONF_OPTS += -DLLVM_ENABLE_LIBCXX=OFF
  144. # Don't use lld as a linker.
  145. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_LLD=OFF
  146. LLVM_CONF_OPTS += -DLLVM_ENABLE_LLD=OFF
  147. # Generate code for the target. LLVM selects a target by looking at the
  148. # toolchain tuple
  149. HOST_LLVM_CONF_OPTS += -DLLVM_DEFAULT_TARGET_TRIPLE=$(GNU_TARGET_NAME)
  150. LLVM_CONF_OPTS += -DLLVM_DEFAULT_TARGET_TRIPLE=$(GNU_TARGET_NAME)
  151. # LLVM_HOST_TRIPLE has a misleading name, it is in fact the triple of the
  152. # system where llvm is going to run on. We need to specify triple for native
  153. # code generation on the target.
  154. # This solves "No available targets are compatible for this triple" with llvmpipe
  155. LLVM_CONF_OPTS += -DLLVM_HOST_TRIPLE=$(GNU_TARGET_NAME)
  156. # Building the Go and OCaml bindings is yet unsupported.
  157. HOST_LLVM_CONF_OPTS += \
  158. -DLLVM_ENABLE_BINDINGS=OFF
  159. # Builds a release host tablegen that gets used during the LLVM build.
  160. HOST_LLVM_CONF_OPTS += -DLLVM_OPTIMIZED_TABLEGEN=ON
  161. # Keep llvm utility binaries for the host. llvm-tblgen is built anyway as
  162. # CMakeLists.txt has add_subdirectory(utils/TableGen) unconditionally.
  163. HOST_LLVM_CONF_OPTS += \
  164. -DLLVM_BUILD_UTILS=ON \
  165. -DLLVM_INCLUDE_UTILS=ON \
  166. -DLLVM_INSTALL_UTILS=ON
  167. LLVM_CONF_OPTS += \
  168. -DLLVM_BUILD_UTILS=OFF \
  169. -DLLVM_INCLUDE_UTILS=OFF \
  170. -DLLVM_INSTALL_UTILS=OFF
  171. HOST_LLVM_CONF_OPTS += \
  172. -DLLVM_INCLUDE_TOOLS=ON \
  173. -DLLVM_BUILD_TOOLS=ON
  174. # We need to activate LLVM_INCLUDE_TOOLS, otherwise it does not generate
  175. # libLLVM.so
  176. LLVM_CONF_OPTS += \
  177. -DLLVM_INCLUDE_TOOLS=ON \
  178. -DLLVM_BUILD_TOOLS=OFF
  179. ifeq ($(BR2_PACKAGE_LLVM_RTTI),y)
  180. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=ON
  181. LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=ON
  182. else
  183. HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=OFF
  184. LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=OFF
  185. endif
  186. # Compiler-rt not in the source tree.
  187. # llvm runtime libraries are not in the source tree.
  188. # Polly is not in the source tree.
  189. HOST_LLVM_CONF_OPTS += \
  190. -DLLVM_BUILD_EXTERNAL_COMPILER_RT=OFF \
  191. -DLLVM_BUILD_RUNTIME=OFF \
  192. -DLLVM_INCLUDE_RUNTIMES=OFF \
  193. -DLLVM_POLLY_BUILD=OFF
  194. LLVM_CONF_OPTS += \
  195. -DLLVM_BUILD_EXTERNAL_COMPILER_RT=OFF \
  196. -DLLVM_BUILD_RUNTIME=OFF \
  197. -DLLVM_INCLUDE_RUNTIMES=OFF \
  198. -DLLVM_POLLY_BUILD=OFF
  199. HOST_LLVM_CONF_OPTS += \
  200. -DLLVM_ENABLE_WARNINGS=ON \
  201. -DLLVM_ENABLE_PEDANTIC=ON \
  202. -DLLVM_ENABLE_WERROR=OFF
  203. LLVM_CONF_OPTS += \
  204. -DLLVM_ENABLE_WARNINGS=ON \
  205. -DLLVM_ENABLE_PEDANTIC=ON \
  206. -DLLVM_ENABLE_WERROR=OFF
  207. HOST_LLVM_CONF_OPTS += \
  208. -DLLVM_BUILD_EXAMPLES=OFF \
  209. -DLLVM_BUILD_DOCS=OFF \
  210. -DLLVM_BUILD_TESTS=OFF \
  211. -DLLVM_ENABLE_DOXYGEN=OFF \
  212. -DLLVM_ENABLE_OCAMLDOC=OFF \
  213. -DLLVM_ENABLE_SPHINX=OFF \
  214. -DLLVM_INCLUDE_EXAMPLES=OFF \
  215. -DLLVM_INCLUDE_DOCS=OFF \
  216. -DLLVM_INCLUDE_GO_TESTS=OFF \
  217. -DLLVM_INCLUDE_TESTS=OFF
  218. LLVM_CONF_OPTS += \
  219. -DLLVM_BUILD_EXAMPLES=OFF \
  220. -DLLVM_BUILD_DOCS=OFF \
  221. -DLLVM_BUILD_TESTS=OFF \
  222. -DLLVM_ENABLE_DOXYGEN=OFF \
  223. -DLLVM_ENABLE_OCAMLDOC=OFF \
  224. -DLLVM_ENABLE_SPHINX=OFF \
  225. -DLLVM_INCLUDE_EXAMPLES=OFF \
  226. -DLLVM_INCLUDE_DOCS=OFF \
  227. -DLLVM_INCLUDE_GO_TESTS=OFF \
  228. -DLLVM_INCLUDE_TESTS=OFF
  229. # Copy llvm-config (host variant) to STAGING_DIR
  230. # llvm-config (host variant) returns include and lib directories
  231. # for the host if it's installed in host/bin:
  232. # output/host/bin/llvm-config --includedir
  233. # output/host/include
  234. # When installed in STAGING_DIR, llvm-config returns include and lib
  235. # directories from STAGING_DIR.
  236. # output/staging/usr/bin/llvm-config --includedir
  237. # output/staging/usr/include
  238. define HOST_LLVM_COPY_LLVM_CONFIG_TO_STAGING_DIR
  239. $(INSTALL) -D -m 0755 $(HOST_DIR)/bin/llvm-config \
  240. $(STAGING_DIR)/usr/bin/llvm-config
  241. endef
  242. HOST_LLVM_POST_INSTALL_HOOKS = HOST_LLVM_COPY_LLVM_CONFIG_TO_STAGING_DIR
  243. # By default llvm-tblgen is built and installed on the target but it is
  244. # not necessary. Also erase LLVMHello.so from /usr/lib
  245. define LLVM_DELETE_LLVM_TBLGEN_TARGET
  246. rm -f $(TARGET_DIR)/usr/bin/llvm-tblgen $(TARGET_DIR)/usr/lib/LLVMHello.so
  247. endef
  248. LLVM_POST_INSTALL_TARGET_HOOKS = LLVM_DELETE_LLVM_TBLGEN_TARGET
  249. $(eval $(cmake-package))
  250. $(eval $(host-cmake-package))