forked from OSchip/llvm-project
[CMake][runtimes] Support monorepo layout with runtimes build
We introduce a new variable LLVM_ENABLE_RUNTIMES which works similarly to LLVM_ENABLE_PROJECTS and allows specifying runtimes that will be enabled in the runtimes build. Differential Revision: https://reviews.llvm.org/D40233 llvm-svn: 319107
This commit is contained in:
Petr Hosek
parent
ea44ee202f
commit
a08d65ded2
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@ -15,6 +15,35 @@ foreach(entry ${entries})
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endif()
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endforeach()
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# Side-by-side subprojects layout.
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set(LLVM_ALL_RUNTIMES "libcxx;libcxxabi;libunwind;compiler-rt")
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set(LLVM_ENABLE_RUNTIMES "" CACHE STRING
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"Semicolon-separated list of runtimes to build (${LLVM_ALL_RUNTIMES}), or \"all\".")
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if(LLVM_ENABLE_RUNTIMES STREQUAL "all" )
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set(LLVM_ENABLE_RUNTIMES ${LLVM_ALL_RUNTIMES})
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endif()
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foreach(proj ${LLVM_ENABLE_RUNTIMES})
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set(proj_dir "${CMAKE_CURRENT_SOURCE_DIR}/../../${proj}")
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if(IS_DIRECTORY ${proj_dir} AND EXISTS ${proj_dir}/CMakeLists.txt)
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list(APPEND runtimes ${proj_dir})
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else()
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message(FATAL_ERROR "LLVM_ENABLE_RUNTIMES requests ${proj} but directory not found: ${proj_dir}")
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endif()
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string(TOUPPER "${proj}" canon_name)
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STRING(REGEX REPLACE "-" "_" canon_name ${canon_name})
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set(LLVM_EXTERNAL_${canon_name}_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../${proj}")
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endforeach()
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function(get_compiler_rt_path path)
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foreach(entry ${runtimes})
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get_filename_component(projName ${entry} NAME)
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if("${projName}" MATCHES "compiler-rt")
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set(${path} ${entry} PARENT_SCOPE)
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return()
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endif()
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endforeach()
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endfunction()
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# If this file is acting as a top-level CMake invocation, this code path is
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# triggered by the external project call for the runtimes target below.
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if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
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@ -38,12 +67,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
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# to make this work smoothly we ensure that compiler-rt is added first in
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# the list of sub-projects. This allows other sub-projects to have checks
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# like `if(TARGET asan)` to enable building with asan.
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foreach(entry ${runtimes})
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if("${entry}" MATCHES "compiler-rt")
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set(compiler_rt_path ${entry})
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break()
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endif()
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endforeach()
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get_compiler_rt_path(compiler_rt_path)
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if(compiler_rt_path)
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list(REMOVE_ITEM runtimes ${compiler_rt_path})
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if(NOT LLVM_BUILD_COMPILER_RT)
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@ -100,7 +124,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
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set(${canon_name}_STANDALONE_BUILD On)
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if(LLVM_RUNTIMES_TARGET)
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if(NOT "${entry}" MATCHES "compiler-rt")
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if(NOT "${projName}" MATCHES "compiler-rt")
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set(${canon_name}_INSTALL_PREFIX "lib/${LLVM_RUNTIMES_PREFIX}/" CACHE STRING "" FORCE)
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endif()
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endif()
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@ -120,7 +144,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
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get_filename_component(projName ${entry} NAME)
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if(LLVM_RUNTIMES_TARGET)
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if(NOT "${entry}" MATCHES "compiler-rt")
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if(NOT "${projName}" MATCHES "compiler-rt")
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set(LLVM_BINARY_DIR "${LLVM_LIBRARY_DIR}/${LLVM_RUNTIMES_PREFIX}")
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set(LLVM_LIBDIR_SUFFIX "${LLVM_RUNTIMES_LIBDIR_SUFFIX}")
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set(LLVM_LIBRARY_OUTPUT_INTDIR "${LLVM_LIBRARY_DIR}/${LLVM_RUNTIMES_PREFIX}lib${LLVM_RUNTIMES_LIBDIR_SUFFIX}")
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@ -134,7 +158,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
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set_property(GLOBAL PROPERTY LLVM_LIT_DEPENDS)
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set_property(GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
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add_subdirectory(${projName})
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add_subdirectory(${entry} ${projName})
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get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
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get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
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@ -147,7 +171,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
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list(APPEND RUNTIMES_LIT_EXTRA_ARGS ${LLVM_LIT_EXTRA_ARGS})
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if(LLVM_RUNTIMES_TARGET)
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if(NOT "${entry}" MATCHES "compiler-rt")
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if(NOT "${projName}" MATCHES "compiler-rt")
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set(LLVM_BINARY_DIR "${SAFE_LLVM_BINARY_DIR}")
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set(LLVM_LIBRARY_OUTPUT_INTDIR "${SAFE_LLVM_LIBRARY_OUTPUT_INTDIR}")
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set(LLVM_RUNTIME_OUTPUT_INTDIR "${SAFE_LLVM_RUNTIME_OUTPUT_INTDIR}")
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@ -205,9 +229,9 @@ else() # if this is included from LLVM's CMake
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set(EXTRA_ARGS EXCLUDE_FROM_ALL)
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endif()
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function(builtin_default_target)
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function(builtin_default_target compiler_rt_path)
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llvm_ExternalProject_Add(builtins
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${CMAKE_CURRENT_SOURCE_DIR}/compiler-rt/lib/builtins
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${compiler_rt_path}/lib/builtins
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CMAKE_ARGS -DLLVM_LIBRARY_OUTPUT_INTDIR=${LLVM_LIBRARY_DIR}
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-DLLVM_RUNTIME_OUTPUT_INTDIR=${LLVM_TOOLS_BINARY_DIR}
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-DCMAKE_C_COMPILER_TARGET=${TARGET_TRIPLE}
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@ -219,7 +243,7 @@ else() # if this is included from LLVM's CMake
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${EXTRA_ARGS})
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endfunction()
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function(builtin_register_target target)
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function(builtin_register_target compiler_rt_path target)
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string(REPLACE "-" ";" builtin_target_list ${target})
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foreach(item ${builtin_target_list})
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string(TOLOWER "${item}" item_lower)
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@ -237,7 +261,7 @@ else() # if this is included from LLVM's CMake
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endforeach()
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llvm_ExternalProject_Add(builtins-${target}
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${CMAKE_CURRENT_SOURCE_DIR}/compiler-rt/lib/builtins
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${compiler_rt_path}/lib/builtins
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CMAKE_ARGS -DLLVM_LIBRARY_OUTPUT_INTDIR=${LLVM_LIBRARY_DIR}
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-DLLVM_RUNTIME_OUTPUT_INTDIR=${LLVM_TOOLS_BINARY_DIR}
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-DCMAKE_C_COMPILER_TARGET=${target}
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@ -254,12 +278,13 @@ else() # if this is included from LLVM's CMake
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# If compiler-rt is present we need to build the builtin libraries first. This
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# is required because the other runtimes need the builtin libraries present
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# before the just-built compiler can pass the configuration tests.
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if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/compiler-rt)
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get_compiler_rt_path(compiler_rt_path)
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if(compiler_rt_path)
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if(NOT LLVM_BUILTIN_TARGETS)
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builtin_default_target()
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builtin_default_target(${compiler_rt_path})
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else()
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if("default" IN_LIST LLVM_BUILTIN_TARGETS)
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builtin_default_target()
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builtin_default_target(${compiler_rt_path})
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list(REMOVE_ITEM LLVM_BUILTIN_TARGETS "default")
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else()
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add_custom_target(builtins)
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@ -267,7 +292,7 @@ else() # if this is included from LLVM's CMake
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endif()
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foreach(target ${LLVM_BUILTIN_TARGETS})
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builtin_register_target(${target})
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builtin_register_target(${compiler_rt_path} ${target})
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add_dependencies(builtins builtins-${target})
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add_dependencies(install-builtins install-builtins-${target})
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@ -326,7 +351,8 @@ else() # if this is included from LLVM's CMake
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-DCMAKE_C_COMPILER_WORKS=ON
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-DCMAKE_CXX_COMPILER_WORKS=ON
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-DCMAKE_ASM_COMPILER_WORKS=ON
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PASSTHROUGH_PREFIXES ${ARG_PREFIXES}
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PASSTHROUGH_PREFIXES LLVM_ENABLE_RUNTIMES
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${ARG_PREFIXES}
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EXTRA_TARGETS ${extra_targets}
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${test_targets}
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${SUB_COMPONENTS}
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@ -399,6 +425,7 @@ else() # if this is included from LLVM's CMake
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-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON
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-DLLVM_RUNTIMES_TARGET=${name}
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${${name}_extra_args}
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PASSTHROUGH_PREFIXES LLVM_ENABLE_RUNTIMES
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TOOLCHAIN_TOOLS clang lld llvm-ar llvm-ranlib
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EXTRA_TARGETS ${${name}_extra_targets}
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${${name}_test_targets}
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