1 files changed, 87 insertions, 0 deletions
diff --git a/longbow/src/python/site-packages/longbow/SymbolTable.py b/longbow/src/python/site-packages/longbow/SymbolTable.py
new file mode 100755
index 00000000..20a909d7
--- /dev/null
+++ b/longbow/src/python/site-packages/longbow/SymbolTable.py
@@ -0,0 +1,87 @@
+#! /usr/bin/env python
+# Copyright (c) 2017 Cisco and/or its affiliates.
+# Licensed 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 os
+import subprocess
+import re
+import sys
+import pprint
+
+def parseLocation(location):
+  token = location.split("[")
+  objectFileName = location
+
+  if len(token) > 1:
+    libraryName = token[0]
+    objectFileName = token[1].split("]")[0]
+  else:
+    libraryName = None
+
+  objectFileName = objectFileName.split(":")[0]
+  return (libraryName, objectFileName)
+
+def parseDarwinOutput(lines, accumulator = { }):
+
+  for line in lines:
+    token = line.split(" ")
+    fullName = token[0]
+
+    libraryName, objectFileName = parseLocation(token[0])
+    name = token[1]
+    type = token[2]
+    if fullName in accumulator:
+      if type == "U":
+        accumulator[fullName]["undefined"].append({ "name" : name })
+      elif type == "T":
+        accumulator[fullName]["defined"].append({ "name" : name })
+      elif type == "D":
+        accumulator[fullName]["globalData"].append({ "name" : name })
+    else:
+      accumulator[fullName] = { "fullName" : fullName, "libraryName" : libraryName, "objectFileName" : objectFileName, "defined" : [], "undefined" : [], "globalData" : [] }
+
+  return accumulator
+
+def getDarwinSymbolTable(objectFileName, accumulator = { }):
+  command = [ "/usr/bin/nm", "-PAog", objectFileName ]
+
+  output = subprocess.check_output(command)
+  lines = output.splitlines()
+  return parseDarwinOutput(lines, accumulator)
+
+
+def getSymbolTable(objectFileName, accumulator = { }):
+  '''
+  {
+    fullName : { "defined" : list of dictionaries,
+                 "undefined": list of dictionaries,
+                 "globalData" : list of dictionaries,
+                 "libraryName" : string
+                 "objectFileName : string
+               },
+  }
+  '''
+  return getDarwinSymbolTable(objectFileName, accumulator)
+
+
+if __name__ == '__main__':
+
+  table = dict()
+  for f in sys.argv:
+    table = getSymbolTable(f, table)
+
+  pp = pprint.PrettyPrinter(indent=4, width=132)
+
+  pp.pprint(table)