建立工程，成功创建两个虚拟串口

source/OpenAMP/libmetal/cmake/modules/FindLibSysFS.cmake

@@ -0,0 +1,34 @@
+# FindLibSysFS
+# --------
+#
+# Find LibSysFS
+#
+# Find the native LibSysFS includes and library This module defines
+#
+# ::
+#
+#   LIBSYSFS_INCLUDE_DIR, where to find libsysfs.h, etc.
+#   LIBSYSFS_LIBRARIES, the libraries needed to use LibSysFS.
+#   LIBSYSFS_FOUND, If false, do not try to use LibSysFS.
+#
+# also defined, but not for general use are
+#
+# ::
+#
+#   LIBSYSFS_LIBRARY, where to find the LibSysFS library.
+
+find_path (LIBSYSFS_INCLUDE_DIR sysfs/libsysfs.h)
+
+set (LIBSYSFS_NAMES ${LIBSYSFS_NAMES} sysfs)
+find_library (LIBSYSFS_LIBRARY NAMES ${LIBSYSFS_NAMES})
+
+# handle the QUIETLY and REQUIRED arguments and set LIBSYSFS_FOUND to TRUE if
+# all listed variables are TRUE
+include (FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS (LIBSYSFS DEFAULT_MSG LIBSYSFS_LIBRARY LIBSYSFS_INCLUDE_DIR)
+
+if (LIBSYSFS_FOUND)
+  set (LIBSYSFS_LIBRARIES ${LIBSYSFS_LIBRARY})
+endif (LIBSYSFS_FOUND)
+
+mark_as_advanced (LIBSYSFS_LIBRARY LIBSYSFS_INCLUDE_DIR)