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llvm-mirror/runtimes/CMakeLists.txt
Petr Hosek e0d03e7b34 [CMake] Split the target side of runtimes build 
Previously, llvm/runtimes/CMakeLists.txt played two different roles:
1. host side which could used  to set up the build of runtimes for
   different targets in the right order;
2. target side to build the runtimes for the specified target.

This change splits llvm/runtimes/CMakeLists.txt and moves the target
side to runtimes/CMakeLists laying down the foundation for the "A vision
for building the runtimes" proposal. From the user perspective, there
shouldn't be any visible difference at the moment.

Differential Revision: https://reviews.llvm.org/D93408
2021-01-11 23:39:36 -08:00

471 lines
20 KiB
CMake
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# TODO: This file assumes the Clang toolchain so it'd be better if it lived in
# Clang, except there already is clang/runtime directory which contains
# similar although simpler functionality. We should figure out how to merge
# the two files.
# TODO: Selecting runtimes should be always performed inside the runtimes
# build, see runtimes/CMakeLists.txt, except that we currently check whether
# compiler-rt is being built to determine whether to first build builtins
# or not so we need that information in this file as well.
set(LLVM_ALL_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind;openmp")
set(LLVM_ENABLE_RUNTIMES "" CACHE STRING
"Semicolon-separated list of runtimes to build (${LLVM_ALL_RUNTIMES}), or \"all\".")
if(LLVM_ENABLE_RUNTIMES STREQUAL "all" )
set(LLVM_ENABLE_RUNTIMES ${LLVM_ALL_RUNTIMES})
endif()
foreach(proj ${LLVM_ENABLE_RUNTIMES})
set(proj_dir "${CMAKE_CURRENT_SOURCE_DIR}/../../${proj}")
if(IS_DIRECTORY ${proj_dir} AND EXISTS ${proj_dir}/CMakeLists.txt)
list(APPEND runtimes ${proj_dir})
else()
message(FATAL_ERROR "LLVM_ENABLE_RUNTIMES requests ${proj} but directory not found: ${proj_dir}")
endif()
string(TOUPPER "${proj}" canon_name)
STRING(REGEX REPLACE "-" "_" canon_name ${canon_name})
set(LLVM_EXTERNAL_${canon_name}_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../${proj}")
endforeach()
function(get_compiler_rt_path path)
foreach(entry ${runtimes})
get_filename_component(projName ${entry} NAME)
if("${projName}" MATCHES "compiler-rt")
set(${path} ${entry} PARENT_SCOPE)
return()
endif()
endforeach()
endfunction()
include(LLVMExternalProjectUtils)
if(NOT LLVM_BUILD_RUNTIMES)
set(EXTRA_ARGS EXCLUDE_FROM_ALL)
endif()
function(check_apple_target triple builtin_or_runtime)
set(error "\
compiler-rt for Darwin builds for all platforms and architectures using a \
single configuration. Specify only a single darwin triple (e.g. x86_64-apple-darwin) \
in your targets list (and not a triple for a specific platform such as macos). \
You can use variables such as COMPILER_RT_ENABLE_IOS and DARWIN_ios_ARCHS to \
control the specific platforms and architectures to build.")
set(seen_property ${builtin_or_runtime}_darwin_triple_seen)
string(REPLACE "-" ";" triple_components ${triple})
foreach(component ${triple_components})
string(TOLOWER "${component}" component_lower)
if(component_lower MATCHES "^darwin")
get_property(darwin_triple_seen GLOBAL PROPERTY ${seen_property})
if(darwin_triple_seen)
message(FATAL_ERROR "${error}")
endif()
set_property(GLOBAL PROPERTY ${seen_property} YES)
if(NOT RUNTIMES_BUILD_ALLOW_DARWIN)
message(FATAL_ERROR "\
${error} Set RUNTIMES_BUILD_ALLOW_DARWIN to allow a single darwin triple.")
endif()
elseif(component_lower MATCHES "^ios|^macos|^tvos|^watchos")
message(FATAL_ERROR "${error}")
endif()
endforeach()
endfunction()
function(builtin_default_target compiler_rt_path)
cmake_parse_arguments(ARG "" "" "DEPENDS" ${ARGN})
set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default ON)
# AIX should fold 32-bit & 64-bit arch libraries into a single archive.
if (TARGET_TRIPLE MATCHES "aix")
set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default OFF)
endif()
llvm_ExternalProject_Add(builtins
${compiler_rt_path}/lib/builtins
DEPENDS ${ARG_DEPENDS}
CMAKE_ARGS -DLLVM_LIBRARY_OUTPUT_INTDIR=${LLVM_LIBRARY_DIR}
-DLLVM_RUNTIME_OUTPUT_INTDIR=${LLVM_TOOLS_BINARY_DIR}
-DLLVM_DEFAULT_TARGET_TRIPLE=${TARGET_TRIPLE}
-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=${LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default}
-DCMAKE_C_COMPILER_TARGET=${TARGET_TRIPLE}
-DCMAKE_ASM_COMPILER_TARGET=${TARGET_TRIPLE}
-DCMAKE_C_COMPILER_WORKS=ON
-DCMAKE_ASM_COMPILER_WORKS=ON
${BUILTINS_CMAKE_ARGS}
PASSTHROUGH_PREFIXES COMPILER_RT
USE_TOOLCHAIN
${EXTRA_ARGS})
endfunction()
function(builtin_register_target compiler_rt_path target)
cmake_parse_arguments(ARG "" "" "DEPENDS" ${ARGN})
check_apple_target(${target} builtin)
get_cmake_property(variableNames VARIABLES)
foreach(variableName ${variableNames})
string(FIND "${variableName}" "BUILTINS_${target}" out)
if("${out}" EQUAL 0)
string(REPLACE "BUILTINS_${target}_" "" new_name ${variableName})
string(REPLACE ";" "|" new_value "${${variableName}}")
list(APPEND ${target}_extra_args "-D${new_name}=${new_value}")
endif()
endforeach()
llvm_ExternalProject_Add(builtins-${target}
${compiler_rt_path}/lib/builtins
DEPENDS ${ARG_DEPENDS}
CMAKE_ARGS -DLLVM_LIBRARY_OUTPUT_INTDIR=${LLVM_LIBRARY_DIR}
-DLLVM_RUNTIME_OUTPUT_INTDIR=${LLVM_TOOLS_BINARY_DIR}
-DLLVM_DEFAULT_TARGET_TRIPLE=${target}
-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON
-DCMAKE_C_COMPILER_TARGET=${target}
-DCMAKE_ASM_COMPILER_TARGET=${target}
-DCMAKE_C_COMPILER_WORKS=ON
-DCMAKE_ASM_COMPILER_WORKS=ON
-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON
${${target}_extra_args}
USE_TOOLCHAIN
${EXTRA_ARGS})
endfunction()
# If compiler-rt is present we need to build the builtin libraries first. This
# is required because the other runtimes need the builtin libraries present
# before the just-built compiler can pass the configuration tests.
get_compiler_rt_path(compiler_rt_path)
if(compiler_rt_path)
if(NOT LLVM_BUILTIN_TARGETS)
builtin_default_target(${compiler_rt_path}
DEPENDS clang-resource-headers)
else()
if("default" IN_LIST LLVM_BUILTIN_TARGETS)
builtin_default_target(${compiler_rt_path}
DEPENDS clang-resource-headers)
list(REMOVE_ITEM LLVM_BUILTIN_TARGETS "default")
else()
add_custom_target(builtins)
add_custom_target(install-builtins)
add_custom_target(install-builtins-stripped)
endif()
foreach(target ${LLVM_BUILTIN_TARGETS})
builtin_register_target(${compiler_rt_path} ${target}
DEPENDS clang-resource-headers)
add_dependencies(builtins builtins-${target})
add_dependencies(install-builtins install-builtins-${target})
add_dependencies(install-builtins-stripped install-builtins-${target}-stripped)
endforeach()
endif()
set(deps builtins)
# We don't need to depend on the builtins if we're building instrumented
# because the next stage will use the same compiler used to build this stage.
if(NOT LLVM_BUILD_INSTRUMENTED AND CLANG_ENABLE_BOOTSTRAP)
add_dependencies(clang-bootstrap-deps builtins)
endif()
endif()
# We create a list the names of all the runtime projects in all uppercase and
# with dashes turned to underscores. This gives us the CMake variable prefixes
# for all variables that will apply to runtimes.
foreach(entry ${runtimes})
get_filename_component(projName ${entry} NAME)
string(REPLACE "-" "_" canon_name ${projName})
string(TOUPPER ${canon_name} canon_name)
list(APPEND prefixes ${canon_name})
if (${canon_name} STREQUAL "OPENMP")
list(APPEND prefixes "LIBOMP" "LIBOMPTARGET")
endif()
# Many compiler-rt options start with SANITIZER_ rather than COMPILER_RT_,
# so when compiler-rt is enabled, consider both.
if(canon_name STREQUAL "COMPILER_RT")
list(APPEND prefixes SANITIZER)
endif()
string(FIND ${projName} "lib" LIB_IDX)
if(LIB_IDX EQUAL 0)
string(SUBSTRING ${projName} 3 -1 projName)
endif()
list(APPEND runtime_names ${projName})
endforeach()
if(LLVM_RUNTIME_BUILD_ID_LINK_TARGETS)
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/llvm-strip-link.in
${CMAKE_CURRENT_BINARY_DIR}/llvm-strip-link
@ONLY
)
endif()
function(runtime_default_target)
cmake_parse_arguments(ARG "" "" "DEPENDS;PREFIXES" ${ARGN})
include(${LLVM_BINARY_DIR}/runtimes/Components.cmake OPTIONAL)
set(SUB_CHECK_TARGETS ${SUB_CHECK_TARGETS} PARENT_SCOPE)
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${LLVM_BINARY_DIR}/runtimes/Components.cmake)
foreach(runtime_name ${runtime_names})
list(APPEND extra_targets
${runtime_name}
install-${runtime_name}
install-${runtime_name}-stripped)
if(LLVM_INCLUDE_TESTS)
list(APPEND test_targets check-${runtime_name})
endif()
endforeach()
foreach(component ${LLVM_RUNTIME_DISTRIBUTION_COMPONENTS})
if(NOT ${component} IN_LIST SUB_COMPONENTS)
list(APPEND extra_targets ${component} install-${component} install-${component}-stripped)
endif()
endforeach()
if(LLVM_INCLUDE_TESTS)
list(APPEND test_targets runtimes-test-depends check-runtimes)
endif()
set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default ON)
# AIX should fold 32-bit & 64-bit arch libraries into a single archive.
if (TARGET_TRIPLE MATCHES "aix")
set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default OFF)
endif()
llvm_ExternalProject_Add(runtimes
${CMAKE_CURRENT_SOURCE_DIR}/../../runtimes
DEPENDS ${ARG_DEPENDS}
# Builtins were built separately above
CMAKE_ARGS -DCOMPILER_RT_BUILD_BUILTINS=Off
-DLLVM_INCLUDE_TESTS=${LLVM_INCLUDE_TESTS}
-DLLVM_DEFAULT_TARGET_TRIPLE=${TARGET_TRIPLE}
-DLLVM_ENABLE_PROJECTS_USED=${LLVM_ENABLE_PROJECTS_USED}
-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=${LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default}
-DCMAKE_C_COMPILER_TARGET=${TARGET_TRIPLE}
-DCMAKE_CXX_COMPILER_TARGET=${TARGET_TRIPLE}
-DCMAKE_ASM_COMPILER_TARGET=${TARGET_TRIPLE}
-DCMAKE_C_COMPILER_WORKS=ON
-DCMAKE_CXX_COMPILER_WORKS=ON
-DCMAKE_ASM_COMPILER_WORKS=ON
${RUNTIMES_CMAKE_ARGS}
PASSTHROUGH_PREFIXES LLVM_ENABLE_RUNTIMES
${ARG_PREFIXES}
EXTRA_TARGETS ${extra_targets}
${test_targets}
${SUB_COMPONENTS}
${SUB_CHECK_TARGETS}
${SUB_INSTALL_TARGETS}
USE_TOOLCHAIN
${EXTRA_ARGS})
endfunction()
# runtime_register_target(target)
# Utility function to register external runtime target.
function(runtime_register_target name target)
cmake_parse_arguments(ARG "" "" "DEPENDS;CMAKE_ARGS" ${ARGN})
include(${LLVM_BINARY_DIR}/runtimes/${name}/Components.cmake OPTIONAL)
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${LLVM_BINARY_DIR}/runtimes/${name}/Components.cmake)
check_apple_target(${target} runtime)
set(${name}_deps ${ARG_DEPENDS})
if(NOT name STREQUAL target)
list(APPEND ${name}_deps runtimes-${target})
endif()
foreach(runtime_name ${runtime_names})
set(${runtime_name}-${name} ${runtime_name})
set(install-${runtime_name}-${name} install-${runtime_name})
set(install-${runtime_name}-${name}-stripped install-${runtime_name}-stripped)
list(APPEND ${name}_extra_targets ${runtime_name}-${name} install-${runtime_name}-${name} install-${runtime_name}-${name}-stripped)
if(LLVM_INCLUDE_TESTS)
set(check-${runtime_name}-${name} check-${runtime_name} )
list(APPEND ${name}_test_targets check-${runtime_name}-${name})
endif()
endforeach()
foreach(target_name IN LISTS SUB_COMPONENTS SUB_INSTALL_TARGETS)
set(${target_name}-${name} ${target_name})
list(APPEND ${name}_extra_targets ${target_name}-${name})
endforeach()
foreach(component ${LLVM_RUNTIME_DISTRIBUTION_COMPONENTS})
set(${component}-${name} ${component})
set(install-${component}-${name} install-${component})
set(install-${component}-${name}-stripped install-${component}-stripped)
list(APPEND ${name}_extra_targets ${component}-${name} install-${component}-${name} install-${component}-${name}-stripped)
endforeach()
if(LLVM_INCLUDE_TESTS)
set(runtimes-test-depends-${name} runtimes-test-depends)
set(check-runtimes-${name} check-runtimes)
list(APPEND ${name}_test_targets runtimes-test-depends-${name} check-runtimes-${name})
foreach(target_name IN LISTS SUB_CHECK_TARGETS)
set(${target_name}-${name} ${target_name})
list(APPEND ${name}_test_targets ${target_name}-${name})
list(APPEND test_targets ${target_name}-${name})
endforeach()
set(test_targets "${test_targets}" PARENT_SCOPE)
endif()
set(${name}_extra_args ${ARG_CMAKE_ARGS})
get_cmake_property(variableNames VARIABLES)
foreach(variableName ${variableNames})
string(FIND "${variableName}" "RUNTIMES_${target}_" out)
if("${out}" EQUAL 0)
string(REPLACE "RUNTIMES_${target}_" "" new_name ${variableName})
string(REPLACE ";" "|" new_value "${${variableName}}")
list(APPEND ${name}_extra_args "-D${new_name}=${new_value}")
endif()
endforeach()
if(NOT "${name}" STREQUAL "${target}")
foreach(variableName ${variableNames})
string(FIND "${variableName}" "RUNTIMES_${name}_" out)
if("${out}" EQUAL 0)
string(REPLACE "RUNTIMES_${name}_" "" new_name ${variableName})
string(REPLACE ";" "|" new_value "${${variableName}}")
list(APPEND ${name}_extra_args "-D${new_name}=${new_value}")
endif()
endforeach()
endif()
if(NOT RUNTIMES_${name}_LLVM_ENABLE_RUNTIMES AND NOT RUNTIMES_${target}_LLVM_ENABLE_RUNTIMES)
string(REPLACE ";" "|" LLVM_ENABLE_RUNTIMES_PASSTHROUGH "${LLVM_ENABLE_RUNTIMES}")
list(APPEND ${name}_extra_args -DLLVM_ENABLE_RUNTIMES=${LLVM_ENABLE_RUNTIMES_PASSTHROUGH})
endif()
if(target IN_LIST LLVM_RUNTIME_BUILD_ID_LINK_TARGETS)
list(APPEND EXTRA_ARGS STRIP_TOOL ${CMAKE_CURRENT_BINARY_DIR}/llvm-strip-link)
endif()
llvm_ExternalProject_Add(runtimes-${name}
${CMAKE_CURRENT_SOURCE_DIR}/../../runtimes
DEPENDS ${${name}_deps}
# Builtins were built separately above
CMAKE_ARGS -DCOMPILER_RT_BUILD_BUILTINS=Off
-DLLVM_INCLUDE_TESTS=${LLVM_INCLUDE_TESTS}
-DLLVM_DEFAULT_TARGET_TRIPLE=${target}
-DLLVM_ENABLE_PROJECTS_USED=${LLVM_ENABLE_PROJECTS_USED}
-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON
-DCMAKE_C_COMPILER_TARGET=${target}
-DCMAKE_CXX_COMPILER_TARGET=${target}
-DCMAKE_ASM_COMPILER_TARGET=${target}
-DCMAKE_C_COMPILER_WORKS=ON
-DCMAKE_CXX_COMPILER_WORKS=ON
-DCMAKE_ASM_COMPILER_WORKS=ON
-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON
-DLLVM_RUNTIMES_TARGET=${name}
${${name}_extra_args}
EXTRA_TARGETS ${${name}_extra_targets}
${${name}_test_targets}
USE_TOOLCHAIN
${EXTRA_ARGS})
endfunction()
if(runtimes)
# Create a runtimes target that uses this file as its top-level CMake file.
# The runtimes target is a configuration of all the runtime libraries
# together in a single CMake invocaiton.
if(NOT LLVM_RUNTIME_TARGETS)
runtime_default_target(
DEPENDS ${deps}
PREFIXES ${prefixes})
set(test_targets check-runtimes)
else()
if("default" IN_LIST LLVM_RUNTIME_TARGETS)
runtime_default_target(
DEPENDS ${deps}
PREFIXES ${prefixes})
list(REMOVE_ITEM LLVM_RUNTIME_TARGETS "default")
else()
add_custom_target(runtimes)
add_custom_target(runtimes-configure)
add_custom_target(install-runtimes)
add_custom_target(install-runtimes-stripped)
if(LLVM_INCLUDE_TESTS)
add_custom_target(check-runtimes)
add_custom_target(runtimes-test-depends)
set(test_targets "")
endif()
foreach(runtime_name ${runtime_names})
add_custom_target(${runtime_name})
add_custom_target(install-${runtime_name})
add_custom_target(install-${runtime_name}-stripped)
endforeach()
if(LLVM_RUNTIME_DISTRIBUTION_COMPONENTS)
foreach(component ${LLVM_RUNTIME_DISTRIBUTION_COMPONENTS})
add_custom_target(${component})
add_custom_target(install-${component})
add_custom_target(install-${component}-stripped)
endforeach()
endif()
endif()
foreach(name ${LLVM_RUNTIME_TARGETS})
runtime_register_target(${name} ${name}
DEPENDS ${deps})
add_dependencies(runtimes runtimes-${name})
add_dependencies(runtimes-configure runtimes-${name}-configure)
add_dependencies(install-runtimes install-runtimes-${name})
add_dependencies(install-runtimes-stripped install-runtimes-${name}-stripped)
if(LLVM_INCLUDE_TESTS)
add_dependencies(check-runtimes check-runtimes-${name})
add_dependencies(runtimes-test-depends runtimes-test-depends-${name})
endif()
foreach(runtime_name ${runtime_names})
add_dependencies(${runtime_name} ${runtime_name}-${name})
add_dependencies(install-${runtime_name} install-${runtime_name}-${name})
add_dependencies(install-${runtime_name}-stripped install-${runtime_name}-${name}-stripped)
endforeach()
endforeach()
foreach(multilib ${LLVM_RUNTIME_MULTILIBS})
foreach(name ${LLVM_RUNTIME_MULTILIB_${multilib}_TARGETS})
runtime_register_target(${name}+${multilib} ${name}
DEPENDS runtimes-${name}
CMAKE_ARGS -DLLVM_RUNTIMES_PREFIX=${name}/
-DLLVM_RUNTIMES_LIBDIR_SUBDIR=${multilib})
add_dependencies(runtimes runtimes-${name}+${multilib})
add_dependencies(runtimes-configure runtimes-${name}+${multilib}-configure)
add_dependencies(install-runtimes install-runtimes-${name}+${multilib})
add_dependencies(install-runtimes-stripped install-runtimes-${name}+${multilib}-stripped)
foreach(runtime_name ${runtime_names})
add_dependencies(${runtime_name} ${runtime_name}-${name}+${multilib})
add_dependencies(install-${runtime_name} install-${runtime_name}-${name}+${multilib})
add_dependencies(install-${runtime_name}-stripped install-${runtime_name}-${name}+${multilib}-stripped)
endforeach()
endforeach()
endforeach()
endif()
if(NOT LLVM_BUILD_INSTRUMENTED AND CLANG_ENABLE_BOOTSTRAP)
# TODO: This is a hack needed because the libcxx headers are copied into the
# build directory during configuration. Without that step the clang in the
# build directory cannot find the C++ headers in certain configurations.
# I need to build a mechanism for runtime projects to provide CMake code
# that executes at LLVM configuration time to handle this case.
add_dependencies(clang-bootstrap-deps runtimes-configure)
# We need to add the runtimes as a dependency because compiler-rt can be
# built as part of runtimes and we need the profile runtime for PGO
add_dependencies(clang-bootstrap-deps runtimes)
endif()
if(LLVM_INCLUDE_TESTS)
set_property(GLOBAL APPEND PROPERTY LLVM_ADDITIONAL_TEST_DEPENDS runtimes-test-depends)
set_property(GLOBAL APPEND PROPERTY LLVM_ADDITIONAL_TEST_TARGETS check-runtimes)
set(RUNTIMES_TEST_DEPENDS
FileCheck
count
llvm-nm
llvm-objdump
llvm-xray
not
obj2yaml
sancov
sanstats
gtest_main
gtest
)
foreach(target ${test_targets} ${SUB_CHECK_TARGETS})
add_dependencies(${target} ${RUNTIMES_TEST_DEPENDS})
endforeach()
endif()
endif()
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