Debug: freertos gdb plugin.

debug/FreeRTOS/FreeRTOSgdb/Task.py

@@ -0,0 +1,63 @@
+# File: Task.py
+# Author: Carl Allendorph
+# Date: 05NOV2014
+#
+# Description:
+#  This file contains the implementation of a class to use for
+# inspecting the state of a FreeRTOS Task in GDB
+#
+
+import gdb
+
+
+class TaskInspector:
+
+    TCBType = gdb.lookup_type("TCB_t")
+
+    def __init__(self, handle):
+        self._tcb = None
+        # print("Task: Pass Handle: %s" % str(handle))
+
+        try:
+            if handle.type == TaskInspector.TCBType:
+                self._tcb = handle
+                return
+            else:
+                print("Handle Type: %s" % str(handle.type))
+
+        except AttributeError as aexc:
+            print("Attribute Error: %s" % str(aexc))
+            pass
+        except Exception as exc:
+            print("Error Initializing Task Inspector: %s" % str(exc))
+            raise
+
+        try:
+            tcbPtr = gdb.Value(handle).cast(TaskInspector.TCBType.pointer())
+            self._tcb = tcbPtr.dereference()
+            return
+        except Exception as exc:
+            print("Failed to convert Handle Pointer: %s" % str(handle))
+
+        self._tcb = handle
+
+    def GetName(self):
+        if self._tcb != None:
+            return self._tcb["pcTaskName"].string()
+        else:
+            raise ValueError("Invalid TCB")
+
+    def GetPriority(self):
+        if self._tcb != None:
+            return self._tcb["uxPriority"]
+        else:
+            raise ValueError("Invalid TCB")
+
+    def GetStackMargin(self):
+        if self._tcb != None:
+            topStack = self._tcb["pxTopOfStack"]
+            stackBase = self._tcb["pxStack"]
+            highWater = topStack - stackBase
+            return highWater
+        else:
+            raise ValueError("Invalid TCB")