tools: Add script to parse callstack

Add 'callstack.py' script for parsing stack dump log to callstack.

tools/callstack.py

@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+# tools/callstack.py
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+
+import sys
+
+syms = []
+
+
+def get_symbol(x):
+    try:
+        addr = int(x, 16)
+    except ValueError:
+        return
+    for num in range(len(syms) - 1):
+        if syms[num][0] <= addr and addr < syms[num + 1][0]:
+            return "[%08x] " % (addr) + syms[num][1] + " + 0x%x" % (addr - syms[num][0])
+
+
+def main():
+    argv = sys.argv
+    argc = len(argv)
+
+    if argc < 3:
+        print("Usage: python %s <System.map> <stackdump.log>" % argv[0])
+        quit()
+
+    for line in open(argv[1], "r"):
+        try:
+            address, type, symbol = line[:-1].split(" ")
+            if type == "T" or type == "t" or type == "W" or type == "w":
+                syms.append((int(address, 16), symbol))
+        except AttributeError:
+            pass
+
+    callstack = []
+    for line in open(argv[2], "r"):
+        print(line[:-1])
+        if "stack_dump:" in line:
+            for item in line.split(" "):
+                callstack.append(get_symbol(item))
+
+    print("----------------- callstack -----------------")
+    for cs in callstack:
+        if cs is not None:
+            print(cs)
+
+
+if __name__ == "__main__":
+    main()