[libomptarget][NFC] Link plugins with threads support library due to std::call_once usage.
Differential Revision: https://reviews.llvm.org/D95572
GitOrigin-RevId: 0fc90873b2ef9049c4aa100631acad806c3cfa72
diff --git a/libomptarget/cmake/Modules/LibomptargetGetDependencies.cmake b/libomptarget/cmake/Modules/LibomptargetGetDependencies.cmake
index 28165ac..317260c 100644
--- a/libomptarget/cmake/Modules/LibomptargetGetDependencies.cmake
+++ b/libomptarget/cmake/Modules/LibomptargetGetDependencies.cmake
@@ -251,3 +251,28 @@
endif()
endif()
endif()
+
+if (OPENMP_STANDALONE_BUILD)
+ # This duplicates code from llvm/cmake/config-ix.cmake
+ if( WIN32 AND NOT CYGWIN )
+ # We consider Cygwin as another Unix
+ set(PURE_WINDOWS 1)
+ endif()
+
+ # library checks
+ if( NOT PURE_WINDOWS )
+ check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD)
+ endif()
+
+ if(HAVE_LIBPTHREAD)
+ # We want to find pthreads library and at the moment we do want to
+ # have it reported as '-l<lib>' instead of '-pthread'.
+ # TODO: switch to -pthread once the rest of the build system can deal with it.
+ set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+ set(THREADS_HAVE_PTHREAD_ARG Off)
+ find_package(Threads REQUIRED)
+ set(OPENMP_PTHREAD_LIB ${CMAKE_THREAD_LIBS_INIT})
+ endif()
+else()
+ set(OPENMP_PTHREAD_LIB ${LLVM_PTHREAD_LIB})
+endif()
diff --git a/libomptarget/plugins/CMakeLists.txt b/libomptarget/plugins/CMakeLists.txt
index 210ee2f..9fb5476 100644
--- a/libomptarget/plugins/CMakeLists.txt
+++ b/libomptarget/plugins/CMakeLists.txt
@@ -46,6 +46,7 @@
${LIBOMPTARGET_DEP_LIBFFI_LIBRARIES}
${LIBOMPTARGET_DEP_LIBELF_LIBRARIES}
dl
+ ${OPENMP_PTHREAD_LIB}
"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../exports")
list(APPEND LIBOMPTARGET_TESTED_PLUGINS
diff --git a/libomptarget/plugins/cuda/CMakeLists.txt b/libomptarget/plugins/cuda/CMakeLists.txt
index cb4d5d3..7f77bcc 100644
--- a/libomptarget/plugins/cuda/CMakeLists.txt
+++ b/libomptarget/plugins/cuda/CMakeLists.txt
@@ -52,6 +52,7 @@
MemoryManager
${LIBOMPTARGET_DEP_LIBRARIES}
${LIBOMPTARGET_DEP_LIBELF_LIBRARIES}
+ ${OPENMP_PTHREAD_LIB}
"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../exports"
"-Wl,-z,defs")
diff --git a/libomptarget/plugins/remote/server/CMakeLists.txt b/libomptarget/plugins/remote/server/CMakeLists.txt
index 667bb15..038a7ed 100644
--- a/libomptarget/plugins/remote/server/CMakeLists.txt
+++ b/libomptarget/plugins/remote/server/CMakeLists.txt
@@ -27,4 +27,5 @@
target_link_libraries(openmp-offloading-server
grpc++
protobuf
+ ${OPENMP_PTHREAD_LIB}
"-ldl" "-lomp" "-fopenmp" "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../../exports" ${LIBOMPTARGET_DEP_LIBELF_LIBRARIES})
diff --git a/libomptarget/plugins/remote/src/CMakeLists.txt b/libomptarget/plugins/remote/src/CMakeLists.txt
index 17eedc1..de3177f 100644
--- a/libomptarget/plugins/remote/src/CMakeLists.txt
+++ b/libomptarget/plugins/remote/src/CMakeLists.txt
@@ -35,6 +35,7 @@
grpc++
protobuf
"-ldl"
+ ${OPENMP_PTHREAD_LIB}
"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../../exports")
# Report to the parent scope that we are building a plugin for RPC.
