Added bidirectionality to get_symbol.

tools/python/get_symbol.py

@@ -12,31 +12,48 @@ def main():
     if len(sys.argv) != 2:
         show_help()
         return
-    print_symbol(int(sys.argv[1], 16))
+    symbol, address = find_pairing(sys.argv[1])
+    if symbol is None or address is None:
+        if is_address(sys.argv[1]):
+            print('No symbol was found for the address 0x%08X' % int(sys.argv[1], 16))
+        else:
+            print('No address was found for the symbol "%s"' % sys.argv[1])
+    else:
+        print('0x%08X = %s' % (address, symbol))
 
-def print_symbol(ramAddress):
+def find_pairing(sym_or_addr):
+    symbol = None
+    address = None
+    if is_address(sym_or_addr):
+        address = int(sym_or_addr, 16)
+    else:
+        symbol = sym_or_addr
     try:
         lines = FileUtil.get_text_from_file(SYMBOLS_TEXT_FILENAME).split('\n')
     except:
         print('Couldn\'t open file ' + SYMBOLS_TEXT_FILENAME)
         return
-    foundSymbol = False
     for line in lines:
         matches = re.match(symbol_define_regex, line)
         if matches is None:
             continue
-        address = int(matches[1], 16)
-        if address == ramAddress:
-            symbol = matches[2]
-            print('0x%08X = %s' % (address, symbol))
-            foundSymbol = True
-            break
-    if not foundSymbol:
-        print('No symbol was found for the address "' + hex(ramAddress) + '"')
-        
-    
+        cur_addr = int(matches[1], 16)
+        cur_sym = matches[2]
+        if cur_addr == address:
+            return cur_sym, address
+        elif cur_sym == symbol:
+            return symbol, cur_addr
+    return None, None
+
+def is_address(symbol):
+    try:
+        int(symbol, 16)
+        return True
+    except:
+        return False
+
 def show_help():
-    print("Usage: ./get_symbol <RAM Address>")
+    print("Usage: ./get_symbol <RAM Address or symbol>")
     
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