108 lines
3.4 KiB
Python
108 lines
3.4 KiB
Python
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# File: FreeRTOS.py
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# Author: Carl Allendorph
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# Date: 05NOV2014
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#
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# Description:
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# This file contains some python code that utilizes the GDB API
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# to inspect information about the FreeRTOS internal state. The
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# idea is to provide the user with the ability to inspect information
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# about the tasks, queues, mutexs, etc.
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#
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from os import path
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import sys
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directory, file = path.split(__file__)
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directory = path.expanduser(directory)
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directory = path.abspath(directory)
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sys.path.append(directory)
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import gdb
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import pprint
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from FreeRTOSgdb.Types import StdTypes
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from FreeRTOSgdb.List import ListInspector
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from FreeRTOSgdb.GDBCommands import ShowHandleName, ShowRegistry, ShowList
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from FreeRTOSgdb.GDBCommands import ShowQueueInfo
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class Scheduler:
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def __init__(self):
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self._blocked = ListInspector("xSuspendedTaskList")
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self._delayed1 = ListInspector("xDelayedTaskList1")
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self._delayed2 = ListInspector("xDelayedTaskList2")
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self._readyLists = []
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readyTasksListsStr = "pxReadyTasksLists"
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readyListsSym, methodType = gdb.lookup_symbol(readyTasksListsStr)
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if readyListsSym != None:
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readyLists = readyListsSym.value()
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minIndex, maxIndex = readyLists.type.range()
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for i in range(minIndex, maxIndex + 1):
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readyList = readyLists[i]
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FRReadyList = ListInspector(readyList)
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self._readyLists.append(FRReadyList)
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else:
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print("Failed to Find Symbol: %s" % readyTasksListsStr)
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raise ValueError("Invalid Symbol!")
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def ShowTaskList(self):
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self.PrintTableHeader()
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for i, rlist in enumerate(self._readyLists):
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if i == 0:
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items = rlist.GetElements("TCB_t", 0)
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else:
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items = rlist.GetElements("TCB_t", 1)
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if len(items) > 0:
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print("Ready List {%d}: Num Tasks: %d" % (i, len(items)))
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for tcb, val in items:
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self.PrintTaskFormatted(tcb)
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items = self._blocked.GetElements("TCB_t")
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print("Blocked List: Num Tasks: %d" % len(items))
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for tcb, val in items:
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self.PrintTaskFormatted(tcb)
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items = self._delayed1.GetElements("TCB_t")
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print("Delayed {1}: Num Tasks: %d" % len(items))
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for tcb, val in items:
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self.PrintTaskFormatted(tcb, val)
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items = self._delayed2.GetElements("TCB_t")
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print("Delayed {2}: Num Tasks: %d" % len(items))
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for tcb, val in items:
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self.PrintTaskFormatted(tcb, val)
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def PrintTableHeader(self):
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print("%16s %3s %4s" % ("Name", "PRI", "STCK"))
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def PrintTaskFormatted(self, task, itemVal=None):
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topStack = task["pxTopOfStack"]
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stackBase = task["pxStack"]
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highWater = topStack - stackBase
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taskName = task["pcTaskName"].string()
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taskPriority = task["uxPriority"]
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if itemVal != None:
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print("%16s %3s %4s %5s" % (taskName, taskPriority, highWater, itemVal))
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else:
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print("%16s %3s %4s" % (taskName, taskPriority, highWater))
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class ShowTaskList(gdb.Command):
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"""Generate a print out of the current tasks and their states."""
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def __init__(self):
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super(ShowTaskList, self).__init__("show Task-List", gdb.COMMAND_SUPPORT)
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def invoke(self, arg, from_tty):
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sched = Scheduler()
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sched.ShowTaskList()
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ShowRegistry()
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ShowList()
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ShowTaskList()
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ShowHandleName()
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ShowQueueInfo()
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