建立工程，成功创建两个虚拟串口

source/OpenAMP/open-amp/cmake/modules/FindLibmetal.cmake

@@ -0,0 +1,31 @@
+# FindLibmetal
+# --------
+#
+# Find Libmetal
+#
+# Find the native Libmetal includes and library this module defines
+#
+# ::
+#
+#   LIBMETAL_INCLUDE_DIR, where to find metal/sysfs.h, etc.
+#   LIBSYSFS_LIB_DIR, where to find libmetal library.
+
+# FIX ME, CMAKE_FIND_ROOT_PATH doesn't work
+# even use the following
+# set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH)
+# set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE BOTH)
+# set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM BOTH)
+find_path(LIBMETAL_INCLUDE_DIR NAMES metal/sys.h PATHS ${CMAKE_FIND_ROOT_PATH})
+find_library(LIBMETAL_LIB NAMES metal PATHS ${CMAKE_FIND_ROOT_PATH})
+get_filename_component(LIBMETAL_LIB_DIR ${LIBMETAL_LIB} DIRECTORY)
+
+# handle the QUIETLY and REQUIRED arguments and set HUGETLBFS_FOUND to TRUE if
+# all listed variables are TRUE
+include (FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS (LIBMETAL DEFAULT_MSG LIBMETAL_LIB LIBMETAL_INCLUDE_DIR)
+
+if (LIBMETAL_FOUND)
+  set (LIBMETAL_LIBS ${LIBMETAL_LIB})
+endif (LIBMETAL_FOUND)
+
+mark_as_advanced (LIBMETAL_LIB LIBMETAL_INCLUDE_DIR LIBMETAL_LIB_DIR)