import RT-Thread@9217865c without bsp, libcpu and components/net

tools/llvm_arm.py

@@ -0,0 +1,57 @@
+#
+# File      : llvm_arm.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2023-05-17     Flybreak     The first version
+
+import os
+import re
+import platform
+
+def GetLLVM_ARMRoot(rtconfig):
+    exec_path = rtconfig.EXEC_PATH
+    lib_path = 'lib/clang-runtimes/arm-none-eabi'
+    root_path = os.path.join(exec_path, '..', lib_path)
+
+    return root_path
+
+def CheckHeader(rtconfig, filename):
+    root = GetLLVM_ARMRoot(rtconfig)
+    config = re.findall(r"--config (.*)\.cfg", rtconfig.CFLAGS)
+    if config:
+        fn = os.path.join(root, config[0], 'include', filename)
+        if os.path.isfile(fn):
+            return True
+
+    return False
+
+def GetPicoLibcVersion(rtconfig):
+    version = None
+    root = GetLLVM_ARMRoot(rtconfig)
+    if CheckHeader(rtconfig, 'picolibc.h'): # get version from picolibc.h file
+        config = re.findall(r"--config (.*)\.cfg", rtconfig.CFLAGS)
+        fn = os.path.join(root, config[0], 'include', 'picolibc.h')
+        f = open(fn, 'r')
+        if f:
+            for line in f:
+                if line.find('__PICOLIBC_VERSION__') != -1 and line.find('"') != -1:
+                    version = re.search(r'\"([^"]+)\"', line).groups()[0]
+            f.close()
+    return version