[Openmp-commits] [openmp] [Libomptarget] Consolidate CPU offloading into 'host' directory (PR #86014)
Joseph Huber via Openmp-commits
openmp-commits at lists.llvm.org
Mon Apr 15 11:33:13 PDT 2024
================
@@ -0,0 +1,109 @@
+if(NOT CMAKE_SYSTEM_NAME MATCHES "Linux")
+ return()
+endif()
+
+ # build_generic_elf64("s390x" "S390X" "s390x" "systemz" "s390x-ibm-linux-gnu" "22")
+ # build_generic_elf64("aarch64" "aarch64" "aarch64" "aarch64" "aarch64-unknown-linux-gnu" "183")
+ # build_generic_elf64("ppc64" "PPC64" "ppc64" "ppc64" "powerpc64-ibm-linux-gnu" "21")
+ # build_generic_elf64("x86_64" "x86_64" "x86_64" "x86_64" "x86_64-pc-linux-gnu" "62")
+ # build_generic_elf64("ppc64le" "PPC64le" "ppc64" "ppc64le" "powerpc64le-ibm-linux-gnu" "21")
+set(supported_targets x86_64 aarch64 ppc64 ppc64le s390x)
+if(NOT ${CMAKE_SYSTEM_PROCESSOR} IN_LIST supported_targets)
+ libomptarget_say("Not building ${machine} NextGen offloading plugin")
+ return()
+endif()
+
+set(machine ${CMAKE_SYSTEM_PROCESSOR})
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le$")
+ set(machine ppc64)
+endif()
+
+add_llvm_library(omptarget.rtl.${machine} SHARED
+ src/rtl.cpp
+ ADDITIONAL_HEADER_DIRS
+ ${LIBOMPTARGET_INCLUDE_DIR}
+ LINK_LIBS PRIVATE
+ PluginCommon
+ ${OPENMP_PTHREAD_LIB}
+ NO_INSTALL_RPATH
+ BUILDTREE_ONLY
+)
+
+if(LIBOMPTARGET_DEP_LIBFFI_FOUND)
+ libomptarget_say("Building ${machine} plugin linked with libffi")
+ if(FFI_STATIC_LIBRARIES)
+ target_link_libraries(omptarget.rtl.${machine} PRIVATE FFI::ffi_static)
+ else()
+ target_link_libraries(omptarget.rtl.${machine} PRIVATE FFI::ffi)
+ endif()
+else()
+ libomptarget_say("Building ${machine} plugin for dlopened libffi")
+ target_sources(omptarget.rtl.${machine} PRIVATE dynamic_ffi/ffi.cpp)
+ target_include_directories(omptarget.rtl.${machine} PRIVATE dynamic_ffi)
+endif()
+
+if(OMPT_TARGET_DEFAULT AND LIBOMPTARGET_OMPT_SUPPORT)
+ target_link_libraries(omptarget.rtl.${machine} PRIVATE OMPT)
+endif()
+
+if(LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
+ target_link_libraries(omptarget.rtl.${machine} PRIVATE
+ "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../exports")
+endif()
+
+# Install plugin under the lib destination folder.
+install(TARGETS omptarget.rtl.${machine}
+ LIBRARY DESTINATION "${OPENMP_INSTALL_LIBDIR}")
+set_target_properties(omptarget.rtl.${machine} PROPERTIES
+ INSTALL_RPATH "$ORIGIN" BUILD_RPATH "$ORIGIN:${CMAKE_CURRENT_BINARY_DIR}/.."
+ POSITION_INDEPENDENT_CODE ON
+ CXX_VISIBILITY_PRESET protected)
+
+target_include_directories(omptarget.rtl.${machine} PRIVATE
+ ${LIBOMPTARGET_INCLUDE_DIR})
+
+if(LIBOMPTARGET_DEP_LIBFFI_FOUND)
+ list(APPEND LIBOMPTARGET_TESTED_PLUGINS omptarget.rtl.${machine})
+ set(LIBOMPTARGET_TESTED_PLUGINS
+ "${LIBOMPTARGET_TESTED_PLUGINS}" PARENT_SCOPE)
+else()
+ libomptarget_say("Not generating ${tmachine_name} tests. LibFFI not found.")
+endif()
+
+# Define macro to be used as prefix of the runtime messages for this target.
+target_compile_definitions(omptarget.rtl.${machine} PRIVATE TARGET_NAME=${machine})
+# TODO: This should be automatized in Debug.h.
+target_compile_definitions(omptarget.rtl.${machine} PRIVATE
+ DEBUG_PREFIX="TARGET ${machine} RTL")
+
+# Define the target specific triples and ELF machine values.
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le$" OR
+ CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64$")
+ target_compile_definitions(omptarget.rtl.${machine} PRIVATE TARGET_ELF_ID=EM_PPC64)
+ target_compile_definitions(omptarget.rtl.${machine} PRIVATE
+ LIBOMPTARGET_NEXTGEN_GENERIC_PLUGIN_TRIPLE="powerpc64-ibm-linux-gnu")
+ list(APPEND LIBOMPTARGET_SYSTEM_TARGETS
+ "powerpc64-ibm-linux-gnu" "powerpc64-ibm-linux-gnu-LTO")
----------------
jhuber6 wrote:
I made https://github.com/llvm/llvm-project/pull/88773. Using the vendor field doesn't really do anything for these triples. It's the same as `x86_64-pc-linux-gnu` which doesn't make a difference except for runtime directory stuff.
https://github.com/llvm/llvm-project/pull/86014
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