Debug: update PyCortexMDebug to latest and refactor (#574)

* Debug: update PyCortexDebug to latest and refactor.
* Debug: format sources. Dockerfile: add missing dependency. Make: switch to gdb-py.
* Debug: port PyCortexMDebug to python2
* Docker: add missing debug dependencies
* Debug: cleanup local include in svd_gdb.py

debug/PyCortexMDebug/cmdebug/dwt_gdb.py

@@ -38,12 +38,14 @@ class DWT(gdb.Command):
     def __init__(self):
         gdb.Command.__init__(self, "dwt", gdb.COMMAND_DATA)
 
-    def read(self, address, bits=32):
+    @staticmethod
+    def read(address, bits=32):
         """Read from memory (using print) and return an integer"""
         value = gdb.selected_inferior().read_memory(address, bits / 8)
         return struct.unpack_from("<i", value)[0]
 
-    def write(self, address, value, bits=32):
+    @staticmethod
+    def write(address, value, bits=32):
         """Set a value in memory"""
         gdb.selected_inferior().write_memory(address, bytes(value), bits / 8)
 
@@ -53,7 +55,7 @@ class DWT(gdb.Command):
             self.write(DWT_CTRL, 0)
             self.is_init = True
 
-        s = map(lambda x: x.lower(), str(args).split(" "))
+        s = list(map(lambda x: x.lower(), str(args).split(" ")))
         # Check for empty command
         if s[0] in ["", "help"]:
             self.print_help()
@@ -100,7 +102,8 @@ class DWT(gdb.Command):
             gdb.write(args)
             self.print_help()
 
-    def complete(self, text, word):
+    @staticmethod
+    def complete(text, word):
         text = str(text).lower()
         s = text.split(" ")
 
@@ -135,7 +138,8 @@ class DWT(gdb.Command):
     def cpicnt_reset(self, value=0):
         self.write(DWT_CPICNT, value & 0xFF)
 
-    def print_help(self):
+    @staticmethod
+    def print_help():
         gdb.write("Usage:\n")
         gdb.write("=========\n")
         gdb.write("dwt:\n")
@@ -149,4 +153,8 @@ class DWT(gdb.Command):
         gdb.write("dwt cyccnt\n")
         gdb.write("\tDisplay the cycle count\n")
         gdb.write("\td(default):decimal, x: hex, o: octal, b: binary\n")
-        return ()
+        return
+
+
+# Registers our class to GDB when sourced:
+DWT()