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Code Issues Activity

Debug: revert cortex debug to lxml and drop DWT (#2651)

Browse Source 
* Debug: revert cortex debug to lxml

* Debug: update PyCortexMDebug readme

* fbt: moved "debug" dir to "scripts" subfolder

* ufbt: added missing debug_other & debug_other_blackmagic targets; github: fixed script bundling

* lint: fixed formatting on debug scripts

* vscode: updated configuration for debug dir changes

---------

Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: hedger <hedger@nanode.su>
This commit is contained in:
あく
2023-05-09 08:31:44 +09:00
committed by GitHub
parent 241b4ef6e4
commit f57f0efc48
32 changed files with 113 additions and 898 deletions
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106
scripts/debug/FreeRTOS/FreeRTOS.py Normal file
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# File: FreeRTOS.py
# Author: Carl Allendorph
# Date: 05NOV2014
#
# Description:
# This file contains some python code that utilizes the GDB API
# to inspect information about the FreeRTOS internal state. The
# idea is to provide the user with the ability to inspect information
# about the tasks, queues, mutexs, etc.
#
from os import path
import sys
directory, file = path.split(__file__)
directory = path.expanduser(directory)
directory = path.abspath(directory)
sys.path.append(directory)
import gdb
import pprint
from FreeRTOSgdb.Types import StdTypes
from FreeRTOSgdb.List import ListInspector
from FreeRTOSgdb.GDBCommands import ShowHandleName, ShowRegistry, ShowList
from FreeRTOSgdb.GDBCommands import ShowQueueInfo
class Scheduler:
def __init__(self):
self._blocked = ListInspector("xSuspendedTaskList")
self._delayed1 = ListInspector("xDelayedTaskList1")
self._delayed2 = ListInspector("xDelayedTaskList2")
self._readyLists = []
readyTasksListsStr = "pxReadyTasksLists"
readyListsSym, methodType = gdb.lookup_symbol(readyTasksListsStr)
if readyListsSym != None:
readyLists = readyListsSym.value()
minIndex, maxIndex = readyLists.type.range()
for i in range(minIndex, maxIndex + 1):
readyList = readyLists[i]
FRReadyList = ListInspector(readyList)
self._readyLists.append(FRReadyList)
else:
print("Failed to Find Symbol: %s" % readyTasksListsStr)
raise ValueError("Invalid Symbol!")
def ShowTaskList(self):
self.PrintTableHeader()
for i, rlist in enumerate(self._readyLists):
if i == 0:
items = rlist.GetElements("TCB_t", 0)
else:
items = rlist.GetElements("TCB_t", 1)
if len(items) > 0:
print("Ready List {%d}: Num Tasks: %d" % (i, len(items)))
for tcb, val in items:
self.PrintTaskFormatted(tcb)
items = self._blocked.GetElements("TCB_t")
print("Blocked List: Num Tasks: %d" % len(items))
for tcb, val in items:
self.PrintTaskFormatted(tcb)
items = self._delayed1.GetElements("TCB_t")
print("Delayed {1}: Num Tasks: %d" % len(items))
for tcb, val in items:
self.PrintTaskFormatted(tcb, val)
items = self._delayed2.GetElements("TCB_t")
print("Delayed {2}: Num Tasks: %d" % len(items))
for tcb, val in items:
self.PrintTaskFormatted(tcb, val)
def PrintTableHeader(self):
print("%16s %3s %4s" % ("Name", "PRI", "STCK"))
def PrintTaskFormatted(self, task, itemVal=None):
topStack = task["pxTopOfStack"]
stackBase = task["pxStack"]
highWater = topStack - stackBase
taskName = task["pcTaskName"].string()
taskPriority = task["uxPriority"]
if itemVal != None:
print("%16s %3s %4s %5s" % (taskName, taskPriority, highWater, itemVal))
else:
print("%16s %3s %4s" % (taskName, taskPriority, highWater))
class ShowTaskList(gdb.Command):
"""Generate a print out of the current tasks and their states."""
def __init__(self):
super(ShowTaskList, self).__init__("show Task-List", gdb.COMMAND_SUPPORT)
def invoke(self, arg, from_tty):
sched = Scheduler()
sched.ShowTaskList()
ShowRegistry()
ShowList()
ShowTaskList()
ShowHandleName()
ShowQueueInfo()

29
scripts/debug/FreeRTOS/FreeRTOSgdb/EventGroup.py Normal file
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# File: EventGroup.py
# Author: Carl Allendorph
# Date: 05NOV2014
#
# Description:
# This file contains the implementation of a Event Group Inspector
import gdb
from .List import ListInspector
from .Task import TaskInspector
class EventGroupInspector:
EvtGrpType = gdb.lookup_type("EventGroup_t")
def __init__(self, handle):
self._evtgrp = gdb.Value(handle).cast(EventGroupInspector.EvtGrpType)
def GetTasksWaiting(self):
taskListObj = self._evtgrp["xTasksWaitingForBits"]
taskList = ListInspector(taskListObj)
return taskList.GetElements(TaskInspector.TCBType)
def GetEventBits(self):
"""Get the Event Flag Bits
@return L{gdb.Value} of EventBits_t
"""
return self._evtgrp["uxEventBits"]

138
scripts/debug/FreeRTOS/FreeRTOSgdb/GDBCommands.py Normal file
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# File: GDBCommands.py
# Author: Carl Allendorph
# Date: 05NOV2014
#
# Description:
# This file contains the implementation of some custom
# GDB commands for Inspecting the FreeRTOS state
import gdb
from .List import ListInspector
from .Task import TaskInspector
from .HandleRegistry import HandleRegistry
from .QueueTools import *
class ShowQueueInfo(gdb.Command):
"""Generate a print out of info about a particular
set of queues.
"""
def __init__(self):
super(ShowQueueInfo, self).__init__("show Queue-Info", gdb.COMMAND_SUPPORT)
def invoke(self, arg, from_tty):
argv = gdb.string_to_argv(arg)
qTypes = []
if len(argv) > 0:
for a in argv:
try:
qType = QueueMode.Map[a]
qTypes.append(qType)
except KeyError:
print("Arg %s does not map to a Queue Type!" % a)
reg = HandleRegistry()
qToShow = []
if len(qTypes) > 0:
# We will only print info about queues
for qType in qTypes:
qObjs = reg.FilterBy(qType)
qToShow.extend(qObjs)
else:
qToShow = reg.FilterBy(None)
print("Num Queues: %d" % len(qToShow))
print("%20s %4s %16s %16s" % ("NAME", "CNT", "SEND", "RECEIVE"))
for q in qToShow:
self.PrintQueueInfo(q)
def PrintQueueInfo(self, q):
"""Print Info about the Queue"""
sendList = q.GetTasksWaitingToSend()
rxList = q.GetTasksWaitingToReceive()
# print("TxLen: %d, RxLen: %d" % (len(sendList), len(rxList)))
maxCount = max(len(sendList), len(rxList))
outputFmt = "%20s %4s %16s %16s"
if maxCount == 0:
print(outputFmt % (q.GetName(), q.GetQueueMessagesWaiting(), "", ""))
else:
for i in range(0, maxCount):
txName = ""
if i < len(sendList):
tcbRef, val = sendList[i]
tcb = TaskInspector(tcbRef)
txName = tcb.GetName()
rxName = ""
if i < len(rxList):
tcbRef, val = rxList[i]
tcb = TaskInspector(tcbRef)
rxName = tcb.GetName()
if i == 0:
print(
outputFmt
% (q.GetName(), q.GetQueueMessagesWaiting(), txName, rxName)
)
else:
print(outputFmt % ("", "", txName, rxName))
class ShowHandleName(gdb.Command):
"""Generate a print out of the handle by name"""
def __init__(self):
super(ShowHandleName, self).__init__("show Handle-Name", gdb.COMMAND_SUPPORT)
def invoke(self, arg, from_tty):
argv = gdb.string_to_argv(arg)
if len(argv) != 1:
print("Invalid Argument: Requires one handle arg")
handle = int(argv[0], 0)
reg = HandleRegistry()
name = reg.GetName(handle)
print("Handle 0x%08x: %s" % (handle, name))
class ShowRegistry(gdb.Command):
"""Generate a print out of the queue handle registry"""
def __init__(self):
super(ShowRegistry, self).__init__("show Handle-Registry", gdb.COMMAND_SUPPORT)
def invoke(self, arg, from_tty):
reg = HandleRegistry()
reg.PrintRegistry()
class ShowList(gdb.Command):
"""Generate a print out of the elements in a list
passed to this command. User must pass a symbol that
will be looked up.
"""
def __init__(self):
super(ShowList, self).__init__(
"show List-Handle", gdb.COMMAND_SUPPORT, gdb.COMPLETE_SYMBOL
)
def invoke(self, arg, from_tty):
argv = gdb.string_to_argv(arg)
CastTypeStr = None
if len(argv) > 0:
symbolArg = argv[0]
if len(argv) > 1:
CastTypeStr = argv[1]
listVal = ListInspector(symbolArg)
elems = listVal.GetElements(CastTypeStr)
for elem in elems:
print("Elem: %s" % str(elem))

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scripts/debug/FreeRTOS/FreeRTOSgdb/HandleRegistry.py Normal file
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# File: HandleRegistry.py
# Author: Carl Allendorph
# Date: 06NOV2014
#
# Description:
# THis file contains the implementation of a class for accessing the
# handle registry. This contains a mapping of queue handles to
# strings for labeling purposes.
import gdb
from .Types import StdTypes
from .QueueTools import *
class HandleRegistry:
"""The FreeRTOS system can be configured with a table that
associates a name with a QueueHandle_t.
This class can be used to access this table and
label queue/mutex/semaphore/event groups
"""
def __init__(self, regSymbol="xQueueRegistry"):
symbol, methodObj = gdb.lookup_symbol(regSymbol)
self._registry = symbol.value()
self._minIndex = 0
self._maxIndex = 0
self._minIndex, self._maxIndex = self._registry.type.range()
def GetName(self, handle):
"""Find the string name associated with a queue
handle if it exists in the registry
"""
for i in range(self._minIndex, self._maxIndex):
elem = self._registry[i]
h = elem["xHandle"]
val = h.cast(StdTypes.uint32_t)
if handle == val:
print("Found Entry for: %x" % handle)
name = elem["pcQueueName"].string()
return name
def PrintRegistry(self):
for i in range(self._minIndex, self._maxIndex):
elem = self._registry[i]
h = elem["xHandle"]
if h != 0:
name = elem["pcQueueName"].string()
print("%d: %3s %16s" % (i, h, name))
def FilterBy(self, qMode):
"""Retrieve a List of Mutex Queue Handles"""
resp = []
for i in range(self._minIndex, self._maxIndex):
elem = self._registry[i]
h = elem["xHandle"]
if h != 0:
name = elem["pcQueueName"].string()
q = QueueInspector(h)
q.SetName(name)
if qMode != None:
qType = q.GetQueueType()
if qType != None:
if qType == qMode:
resp.append(q)
else:
print("qType == None")
else:
resp.append(q)
return resp
def GetMutexes(self):
"""Retrieve all the Mutex Objects in the Handle Registry"""
return self.FilterBy(QueueMode.MUTEX)
def GetSemaphores(self):
"""Retrieve all the Semaphore Objects in the Handle Registry"""
return self.FilterBy(QueueMode.BINARY)
def GetQueues(self):
"""Retrieve all the Queue Objects in the Handle Registry"""
return self.FilterBy(QueueMode.QUEUE)

100
scripts/debug/FreeRTOS/FreeRTOSgdb/List.py Normal file
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# File: List.py
# Author: Carl Allendorph
# Date: 05NOV2014
#
# Description:
# This file contains the class for inspecting
# a FreeRTOS List Object
#
import gdb
from .Types import StdTypes
class ListInspector:
"""FreeRTOS List Inspector Object"""
ListType = gdb.lookup_type("List_t")
def __init__(self, handle):
self._list = None
# print("List: Handle: %s" % handle)
self.Assign(handle)
def Assign(self, listObj):
try:
if listObj.type == ListInspector.ListType:
self._list = listObj
return
else:
raise TypeError("Invalid List Object Type!")
except Exception as exc:
# print(" Failed to assign from List object: %s" % str(exc))
pass
symbol, methodObj = gdb.lookup_symbol(listObj)
if symbol != None:
self._list = symbol.value()
else:
addrInt = int(listObj, 0)
listObjPtr = gdb.Value(addrInt).cast(ListInspector.ListType.pointer())
self._list = listObjPtr.dereference()
def GetElements(self, CastTypeStr=None, startElem=1):
"""Get the Elements of the list as an array of
gdb.Value type objects.
@param CastTypeStr string name of the type of object that
we will cast the void *pvOwner elements of the list to.
User can also pass a L{gdb.Type} object as the type
If None, we will simply cast to uint32_t and print these
as hex values.
@param startElem This is a flag to indicate whether
we will start getting elements starting at 0 or 1. Note
that this is to deal with some non-consistent behavior
of some of the TCB Task lists.
"""
if self._list != None:
CastType = None
if CastTypeStr != None:
if type(CastTypeStr) == str:
try:
CastType = gdb.lookup_type(CastTypeStr).pointer()
except:
print("Failed to find type: %s" % CastTypeStr)
elif type(CastTypeStr) == gdb.Type:
CastType = CastTypeStr.pointer()
resp = []
numElems = self._list["uxNumberOfItems"]
# print("List Elements: %d" % numElems)
index = self._list["pxIndex"]
if numElems > 0 and numElems < 200:
if startElem == 0:
curr = index
else:
curr = index["pxPrevious"]
for i in range(0, numElems):
owner = curr["pvOwner"]
ownerObj = None
if CastType != None:
castObjPtr = owner.cast(CastType)
castObj = castObjPtr.dereference()
ownerObj = castObj
else:
ownerUInt = owner.cast(StdTypes.uint32_t)
ownerObj = ownerUInt
itemVal = curr["xItemValue"]
resp.append((ownerObj, itemVal.cast(StdTypes.uint32_t)))
curr = curr["pxPrevious"]
return resp
else:
raise ValueError("Invalid List Object - Possibly Failed to Initialize!")

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# File: Queue.py
# Author: Carl Allendorph
# Date: 05NOV2014
#
# Description:
# This file contains the implementation of a Queue Inspector
# class.
#
import gdb
from .List import ListInspector
from .Task import TaskInspector
class QueueMode:
QUEUE = 0
MUTEX = 1
COUNTING = 2
BINARY = 3
RECURSIVE = 4
Map = None
@staticmethod
def IsValid(qType):
if (
qType == QueueMode.QUEUE
or qType == QueueMode.MUTEX
or qType == QueueMode.COUNTING
or qType == QueueMode.BINARY
or qType == QueueMode.RECURSIVE
):
return True
else:
return False
QueueMap = {
"mutex": QueueMode.MUTEX,
"queue": QueueMode.QUEUE,
"semaphore": QueueMode.BINARY,
"counting": QueueMode.COUNTING,
"recursive": QueueMode.RECURSIVE,
}
QueueMode.Map = QueueMap
class QueueInspector:
QueueType = gdb.lookup_type("Queue_t")
def __init__(self, handle):
# print("Queue: Handle: %s" % handle)
self.name = None
queueObjPtr = None
if type(handle) == gdb.Value:
queueObjPtr = handle.cast(QueueInspector.QueueType.pointer())
self._queue = queueObjPtr.dereference()
else:
queueObjPtr = gdb.Value(handle).cast(QueueInspector.QueueType.pointer())
self._queue = queueObjPtr.dereference()
def GetName(self):
return self.name
def SetName(self, name):
self.name = name
def GetTasksWaitingToSend(self):
"""Retrieve a list of gdb.Value objects of type
TCB that are the tasks that are currently waiting to
send data on this queue object.
"""
sendList = ListInspector(self._queue["xTasksWaitingToSend"])
return sendList.GetElements(TaskInspector.TCBType)
def GetTasksWaitingToReceive(self):
"""Retrieve a list of gdb.Value objects of Type
TCB that are the tasks that are currently waiting to
receive data on this queue object.
"""
rxList = ListInspector(self._queue["xTasksWaitingToReceive"])
return rxList.GetElements(TaskInspector.TCBType)
def GetQueueMessagesWaiting(self):
"""Return the number of messages waiting as a
L{gdb.Value} object
"""
return self._queue["uxMessagesWaiting"]
def GetQueueType(self):
"""Return the Type of the Queue as a enumerated number"""
try:
qType = self._queue["ucQueueType"]
if QueueMode.IsValid(int(qType)):
return qType
else:
raise ValueError(
"Invalid Queue Type In Queue Object! Are you sure this is a Queue Handle?"
)
except Exception as exc:
# If the TRACE functionality of the RTOS is not enabled,
# then the queue type will not be availabe in the queue
# handle - so we return None
print("Failed to get Type: %s" % str(exc))
return None

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scripts/debug/FreeRTOS/FreeRTOSgdb/Task.py Normal file
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# 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")

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scripts/debug/FreeRTOS/FreeRTOSgdb/Types.py Normal file
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# File: Types.py
# Author: Carl Allendorph
# Date: 05NOV2014
#
# Description:
# This file contains the implementation of some
# standard types
import gdb
class StdTypes:
uint32_t = gdb.lookup_type("uint32_t")
uint16_t = gdb.lookup_type("uint16_t")

0
scripts/debug/FreeRTOS/FreeRTOSgdb/__init__.py Normal file
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340
scripts/debug/FreeRTOS/LICENSE Normal file
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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License is intended to guarantee your freedom to share and change free
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Foundation's software and to any other program whose authors commit to
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How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
{description}
Copyright (C) {year} {fullname}
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
{signature of Ty Coon}, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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FreeRTOS-GDB
============
Python API Library for inspecting FreeRTOS Objects in GDB
Basically, the FreeRTOS internal state is kind of hard to inspect
when working with GDB. This project provides some scripts for GDB's
Python API that make accessing some of these internals a little easier
to inspect.
##Requirements:
1. You need to have the python API enabled in your version of GDB. This is a
compile time option when building GDB. You should be able to do something
like this:
```
gdb> python print "Hello World"
```
and get predictable results. If it throws an error - then you don't have
python compiled in your version of GDB.
2. Need to be using FreeRTOS 8.0+. This code could probably be used with FreeRTOS
version 7.0 or previous versions, but the current code doesn't support it.
3. You need to use the Handle Registry for Queue info to be any use.
Note that this only works for Queue based objects and not
for EventGroups
4. You need to put the FreeRTOS-GDB/src directory on your python path:
```
$> export PYTHONPATH=~/src/FreeRTOS-GDB/src/
```
How To Use:
```
$> gdb ./bin/program.elf
(gdb) c
Program runs on embedded device, sets up tasks, and queues
<Break>
(gdb) source ~/FreeRTOS-GDB/src/FreeRTOS.py
(gdb) show Task-List
Name PRI STCK
Ready List {0}: Num Tasks: 1
IDLE 0 107
Blocked List: Num Tasks: 11
EMAC Task 1 239
AFEC0 Task 1 295
LDSENS Task 1 195
AFEC1 Task 1 295
LineSample Task 1 281
DMAUART0 1 225
Log Task 1 273
BAT Task 1 169
Rx Task 1 421
Mng Task 2 551
Cell Task 1 275
Delayed {1}: Num Tasks: 5
Tmr Svc 3 355 62254
WLAN Task 1 205 13817
Init Task 1 445 10015
LED Task 1 179 7105
DMACOM1 1 265 7065
Delayed {2}: Num Tasks: 0
(gdb) show Queue-Info mutex
Num Queues: 6
NAME CNT SEND RECEIVE
LOG:LOCK 1 NONE NONE
STREAM:LOCK 1 NONE NONE
TWI:MUTEX 1 NONE NONE
CC3000:LOCK 1 NONE NONE
WLAN:LOCK 0 NONE NONE
SPI:LOCK 1 NONE NONE
(gdb) show Queue-Info queue
Num Queues: 14
NAME CNT SEND RECEIVE
TmrQ 0 Tmr Svc
LOG:MSGPOOL 12 NONE NONE
LOG:MSGQ 0 Log Task
TWI:QUEUE 0 NONE NONE
SPI:QUEUE 0 NONE NONE
DMAAFEC:POOL 1 NONE NONE
DMAAFEC:QUEUE 0 AFEC0 Task
DMAAFEC:POOL 1 NONE NONE
DMAAFEC:QUEUE 0 AFEC1 Task
COM:TXPOOL 3 NONE NONE
COM:TXQ 0 NONE NONE
COM:RXPOOL 5 NONE NONE
COM:RXQ 0 NONE NONE
FATFS:MUTEX 0 NONE NONE
```
@note - the NONE's above may just be empty strings.
This code adds the following custom GDB commands:
* show List-Handle (symbol|address) [CastType]
CastType is an optional argument that will cast all of the
handles in a list to a particular type.
* show Task-List
* show Handle-Registry
* show Handle-Name (symbole|address)
* show Queue-Info [filter]
filter can be "queue","mutex","semaphore", "counting", "recursive"
@TODO
=====
* With GDB's Python API - it doesn't seem to handle code is separate
files very well.
* Currently, the EventGroup objects don't have an inspector.
Work in progress - ideal solution would likely modify the struct
of the Event Group to provide a similar piece of info that the
Queue handle does so that we could use the same registry.

674
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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
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How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
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state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
PyCortexMDebug
Copyright (C) 2013 Ben Nahill <bnahill@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
PyCortexMDebug Copyright (C) 2013 Ben Nahill <bnahill@gmail.com>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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scripts/debug/PyCortexMDebug/PyCortexMDebug.py Normal file
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""" Simple script to load from GDB to import all components
===============================================================================
This file is part of PyCortexMDebug
PyCortexMDebug is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PyCortexMDebug is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with PyCortexMDebug. If not, see <http://www.gnu.org/licenses/>.
"""
from os import path
import sys
directory, file = path.split(__file__)
directory = path.expanduser(directory)
directory = path.abspath(directory)
sys.path.append(directory)
from cmdebug.svd_gdb import LoadSVD
LoadSVD()

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scripts/debug/PyCortexMDebug/README.md Normal file
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PyCortexMDebug
==============
## SVD
ARM defines an SVD (System View Description) file format in its CMSIS standard as a means for Cortex-M-based chip manufacturers to provide a common description of peripherals, registers, and register fields. You can download SVD files for different manufacturers [here](http://www.arm.com/products/processors/cortex-m/cortex-microcontroller-software-interface-standard.php).
The implementation consists of two components -- An lxml-based parser module (pysvd) and a GDB file (gdb_svd). I haven't yet worked out a perfect workflow for this, though it's quite easy to use when you already tend to have a GDB initialization file for starting up OpenOCD and the like. However your workflow works, just make sure to, in GDB:
source gdb_svd.py
svd_load [your_svd_file].svd
These files can be huge so it might take a second or two. Anyways, after that, you can do
svd
to list available peripherals with descriptions. Or you can do
svd [some_peripheral_name]
to see all of the registers (with their values) for a given peripheral. For more details, run
svd [some_peripheral_name] [some_register_name]
to see all of the field values with descriptions.
You can add format modifiers like:
* `svd/x` will display values in hex
* `svd/o` will display values in octal
* `svd/t` or `svd/b` will display values in binary
* `svd/a` will display values in hex and try to resolve symbols from the values
All field values are displayed at the correct lengths as provided by the SVD files.
Also, tab completion exists for nearly everything! When in doubt, run `svd help`.

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scripts/debug/PyCortexMDebug/cmdebug/__init__.py Executable file
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@@ -0,0 +1,448 @@
#!/usr/bin/env python
"""
This file is part of PyCortexMDebug
PyCortexMDebug is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PyCortexMDebug is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with PyCortexMDebug. If not, see <http://www.gnu.org/licenses/>.
"""
import lxml.objectify as objectify
import sys
from collections import OrderedDict
import os
import pickle
import traceback
import re
import warnings
class SmartDict:
"""
Dictionary for search by case-insensitive lookup and/or prefix lookup
"""
def __init__(self):
self.od = OrderedDict()
self.casemap = {}
def __getitem__(self, key):
if key in self.od:
return self.od[key]
if key.lower() in self.casemap:
return self.od[self.casemap[key.lower()]]
return self.od[self.prefix_match(key)]
def is_ambiguous(self, key):
return (
key not in self.od
and key not in self.casemap
and len(list(self.prefix_match_iter(key))) > 1
)
def prefix_match_iter(self, key):
name, number = re.match(r"^(.*?)([0-9]*)$", key.lower()).groups()
for entry, od_key in self.casemap.items():
if entry.startswith(name) and entry.endswith(number):
yield od_key
def prefix_match(self, key):
for od_key in self.prefix_match_iter(key):
return od_key
return None
def __setitem__(self, key, value):
if key in self.od:
warnings.warn("Duplicate entry %s", key)
elif key.lower() in self.casemap:
warnings.warn(
"Entry %s differs from duplicate %s only in cAsE",
key,
self.casemap[key.lower()],
)
self.casemap[key.lower()] = key
self.od[key] = value
def __delitem__(self, key):
if (
self.casemap[key.lower()] == key
): # Check that we did not overwrite this entry
del self.casemap[key.lower()]
del self.od[key]
def __contains__(self, key):
return key in self.od or key.lower() in self.casemap or self.prefix_match(key)
def __iter__(self):
return iter(self.od)
def __len__(self):
return len(self.od)
def items(self):
return self.od.items()
def keys(self):
return self.od.keys()
def values(self):
return self.od.values()
def __str__(self):
return str(self.od)
class SVDNonFatalError(Exception):
"""Exception class for non-fatal errors
So far, these have related to quirks in some vendor SVD files which are reasonable to ignore
"""
def __init__(self, m):
self.m = m
self.exc_info = sys.exc_info()
def __str__(self):
s = "Non-fatal: {}".format(self.m)
s += "\n" + str("".join(traceback.format_exc())).strip()
return s
class SVDFile:
"""
A parsed SVD file
"""
def __init__(self, fname):
"""
Args:
fname: Filename for the SVD file
"""
f = objectify.parse(os.path.expanduser(fname))
root = f.getroot()
periph = root.peripherals.getchildren()
self.peripherals = SmartDict()
self.base_address = 0
# XML elements
for p in periph:
try:
if p.tag == "peripheral":
self.peripherals[str(p.name)] = SVDPeripheral(p, self)
else:
# This is some other tag
pass
except SVDNonFatalError as e:
print(e)
def add_register(parent, node):
"""
Add a register node to a peripheral
Args:
parent: Parent SVDPeripheral object
node: XML file node fot of the register
"""
if hasattr(node, "dim"):
dim = int(str(node.dim), 0)
# dimension is not used, number of split indexes should be same
incr = int(str(node.dimIncrement), 0)
default_dim_index = ",".join((str(i) for i in range(dim)))
dim_index = str(getattr(node, "dimIndex", default_dim_index))
indices = dim_index.split(",")
offset = 0
for i in indices:
name = str(node.name) % i
reg = SVDPeripheralRegister(node, parent)
reg.name = name
reg.offset += offset
parent.registers[name] = reg
offset += incr
else:
try:
reg = SVDPeripheralRegister(node, parent)
name = str(node.name)
if name not in parent.registers:
parent.registers[name] = reg
else:
if hasattr(node, "alternateGroup"):
print("Register %s has an alternate group", name)
except SVDNonFatalError as e:
print(e)
def add_cluster(parent, node):
"""
Add a register cluster to a peripheral
"""
if hasattr(node, "dim"):
dim = int(str(node.dim), 0)
# dimension is not used, number of split indices should be same
incr = int(str(node.dimIncrement), 0)
default_dim_index = ",".join((str(i) for i in range(dim)))
dim_index = str(getattr(node, "dimIndex", default_dim_index))
indices = dim_index.split(",")
offset = 0
for i in indices:
name = str(node.name) % i
cluster = SVDRegisterCluster(node, parent)
cluster.name = name
cluster.address_offset += offset
cluster.base_address += offset
parent.clusters[name] = cluster
offset += incr
else:
try:
parent.clusters[str(node.name)] = SVDRegisterCluster(node, parent)
except SVDNonFatalError as e:
print(e)
class SVDRegisterCluster:
"""
Register cluster
"""
def __init__(self, svd_elem, parent):
"""
Args:
svd_elem: XML element for the register cluster
parent: Parent SVDPeripheral object
"""
self.parent_base_address = parent.base_address
self.parent_name = parent.name
self.address_offset = int(str(svd_elem.addressOffset), 0)
self.base_address = self.address_offset + self.parent_base_address
# This doesn't inherit registers from anything
children = svd_elem.getchildren()
self.description = str(svd_elem.description)
self.name = str(svd_elem.name)
self.registers = SmartDict()
self.clusters = SmartDict()
for r in children:
if r.tag == "register":
add_register(self, r)
def refactor_parent(self, parent):
self.parent_base_address = parent.base_address
self.parent_name = parent.name
self.base_address = self.parent_base_address + self.address_offset
values = self.registers.values()
for r in values:
r.refactor_parent(self)
def __str__(self):
return str(self.name)
class SVDPeripheral:
"""
This is a peripheral as defined in the SVD file
"""
def __init__(self, svd_elem, parent):
"""
Args:
svd_elem: XML element for the peripheral
parent: Parent SVDFile object
"""
self.parent_base_address = parent.base_address
# Look for a base address, as it is required
if not hasattr(svd_elem, "baseAddress"):
raise SVDNonFatalError("Periph without base address")
self.base_address = int(str(svd_elem.baseAddress), 0)
if "derivedFrom" in svd_elem.attrib:
derived_from = svd_elem.attrib["derivedFrom"]
try:
self.name = str(svd_elem.name)
except AttributeError:
self.name = parent.peripherals[derived_from].name
try:
self.description = str(svd_elem.description)
except AttributeError:
self.description = parent.peripherals[derived_from].description
# pickle is faster than deepcopy by up to 50% on svd files with a
# lot of derivedFrom definitions
def copier(a):
return pickle.loads(pickle.dumps(a))
self.registers = copier(parent.peripherals[derived_from].registers)
self.clusters = copier(parent.peripherals[derived_from].clusters)
self.refactor_parent(parent)
else:
# This doesn't inherit registers from anything
self.description = str(svd_elem.description)
self.name = str(svd_elem.name)
self.registers = SmartDict()
self.clusters = SmartDict()
if hasattr(svd_elem, "registers"):
registers = [
r
for r in svd_elem.registers.getchildren()
if r.tag in ["cluster", "register"]
]
for r in registers:
if r.tag == "cluster":
add_cluster(self, r)
elif r.tag == "register":
add_register(self, r)
def refactor_parent(self, parent):
self.parent_base_address = parent.base_address
values = self.registers.values()
for r in values:
r.refactor_parent(self)
for c in self.clusters.values():
c.refactor_parent(self)
def __str__(self):
return str(self.name)
class SVDPeripheralRegister:
"""
A register within a peripheral
"""
def __init__(self, svd_elem, parent):
self.parent_base_address = parent.base_address
self.name = str(svd_elem.name)
self.description = str(svd_elem.description)
self.offset = int(str(svd_elem.addressOffset), 0)
if hasattr(svd_elem, "access"):
self.access = str(svd_elem.access)
else:
self.access = "read-write"
if hasattr(svd_elem, "size"):
self.size = int(str(svd_elem.size), 0)
else:
self.size = 0x20
self.fields = SmartDict()
if hasattr(svd_elem, "fields"):
# Filter fields to only consider those of tag "field"
fields = [f for f in svd_elem.fields.getchildren() if f.tag == "field"]
for f in fields:
self.fields[str(f.name)] = SVDPeripheralRegisterField(f, self)
def refactor_parent(self, parent):
self.parent_base_address = parent.base_address
def address(self):
return self.parent_base_address + self.offset
def readable(self):
return self.access in ["read-only", "read-write", "read-writeOnce"]
def writable(self):
return self.access in [
"write-only",
"read-write",
"writeOnce",
"read-writeOnce",
]
def __str__(self):
return str(self.name)
class SVDPeripheralRegisterField:
"""
Field within a register
"""
def __init__(self, svd_elem, parent):
self.name = str(svd_elem.name)
self.description = str(getattr(svd_elem, "description", ""))
# Try to extract a bit range (offset and width) from the available fields
if hasattr(svd_elem, "bitOffset") and hasattr(svd_elem, "bitWidth"):
self.offset = int(str(svd_elem.bitOffset))
self.width = int(str(svd_elem.bitWidth))
elif hasattr(svd_elem, "bitRange"):
bitrange = list(map(int, str(svd_elem.bitRange).strip()[1:-1].split(":")))
self.offset = bitrange[1]
self.width = 1 + bitrange[0] - bitrange[1]
else:
assert hasattr(svd_elem, "lsb") and hasattr(
svd_elem, "msb"
), "Range not found for field {} in register {}".format(self.name, parent)
lsb = int(str(svd_elem.lsb))
msb = int(str(svd_elem.msb))
self.offset = lsb
self.width = 1 + msb - lsb
self.access = str(getattr(svd_elem, "access", parent.access))
self.enum = {}
if hasattr(svd_elem, "enumeratedValues"):
values = [
v
for v in svd_elem.enumeratedValues.getchildren()
if v.tag == "enumeratedValue"
]
for v in values:
# Skip the "name" tag and any entries that don't have a value
if v.tag == "name" or not hasattr(v, "value"):
continue
# Some Kinetis parts have values with # instead of 0x...
value = str(v.value).replace("#", "0x")
description = str(v.description) if hasattr(v, "description") else ""
try:
index = int(value, 0)
self.enum[int(value, 0)] = (str(v.name), description)
except ValueError:
# If the value couldn't be converted as a single integer, skip it
pass
def readable(self):
return self.access in ["read-only", "read-write", "read-writeOnce"]
def writable(self):
return self.access in [
"write-only",
"read-write",
"writeOnce",
"read-writeOnce",
]
def __str__(self):
return str(self.name)
def _main():
"""
Basic test to parse a file and do some things
"""
for f in sys.argv[1:]:
print("Testing file: {}".format(f))
svd = SVDFile(f)
print(svd.peripherals)
key = list(svd.peripherals)[0]
print("Registers in peripheral '{}':".format(key))
print(svd.peripherals[key].registers)
print("Done testing file: {}".format(f))
if __name__ == "__main__":
_main()

520
scripts/debug/PyCortexMDebug/cmdebug/svd_gdb.py Executable file
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#!/usr/bin/env python
"""
This file is part of PyCortexMDebug
PyCortexMDebug is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PyCortexMDebug is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with PyCortexMDebug. If not, see <http://www.gnu.org/licenses/>.
"""
import gdb
import re
import math
import sys
import struct
import pkg_resources
import fnmatch
import traceback
from .svd import SVDFile
BITS_TO_UNPACK_FORMAT = {
8: "B",
16: "H",
32: "I",
}
class LoadSVD(gdb.Command):
"""A command to load an SVD file and to create the command for inspecting
that object
"""
def __init__(self):
self.vendors = {}
try:
vendor_names = pkg_resources.resource_listdir("cmsis_svd", "data")
for vendor in vendor_names:
fnames = pkg_resources.resource_listdir(
"cmsis_svd", "data/{}".format(vendor)
)
self.vendors[vendor] = [
fname for fname in fnames if fname.lower().endswith(".svd")
]
except:
pass
if len(self.vendors) > 0:
gdb.Command.__init__(self, "svd_load", gdb.COMMAND_USER)
else:
gdb.Command.__init__(
self, "svd_load", gdb.COMMAND_DATA, gdb.COMPLETE_FILENAME
)
def complete(self, text, word):
args = gdb.string_to_argv(text)
num_args = len(args)
if text.endswith(" "):
num_args += 1
if not text:
num_args = 1
# "svd_load <tab>" or "svd_load ST<tab>"
if num_args == 1:
prefix = word.lower()
return [
vendor for vendor in self.vendors if vendor.lower().startswith(prefix)
]
# "svd_load STMicro<tab>" or "svd_load STMicro STM32F1<tab>"
elif num_args == 2 and args[0] in self.vendors:
prefix = word.lower()
filenames = self.vendors[args[0]]
return [fname for fname in filenames if fname.lower().startswith(prefix)]
return gdb.COMPLETE_NONE
@staticmethod
def invoke(args, from_tty):
args = gdb.string_to_argv(args)
argc = len(args)
if argc == 1:
gdb.write("Loading SVD file {}...\n".format(args[0]))
f = args[0]
elif argc == 2:
gdb.write("Loading SVD file {}/{}...\n".format(args[0], args[1]))
f = pkg_resources.resource_filename(
"cmsis_svd", "data/{}/{}".format(args[0], args[1])
)
else:
raise gdb.GdbError(
"Usage: svd_load <vendor> <device.svd> or svd_load <path/to/filename.svd>\n"
)
try:
SVD(SVDFile(f))
except Exception as e:
traceback.print_exc()
raise gdb.GdbError("Could not load SVD file {} : {}...\n".format(f, e))
class SVD(gdb.Command):
"""The CMSIS SVD (System View Description) inspector command
This allows easy access to all peripheral registers supported by the system
in the GDB debug environment
"""
def __init__(self, svd_file):
gdb.Command.__init__(self, "svd", gdb.COMMAND_DATA)
self.svd_file = svd_file
def _print_registers(self, container_name, form, registers):
if len(registers) == 0:
return
try:
regs_iter = registers.itervalues()
except AttributeError:
regs_iter = registers.values()
gdb.write("Registers in %s:\n" % container_name)
reg_list = []
for r in regs_iter:
if r.readable():
try:
data = self.read(r.address(), r.size)
data = self.format(data, form, r.size)
if form == "a":
data += (
" <"
+ re.sub(
r"\s+",
" ",
gdb.execute(
"info symbol {}".format(data), True, True
).strip(),
)
+ ">"
)
except gdb.MemoryError:
data = "(error reading)"
else:
data = "(not readable)"
desc = re.sub(r"\s+", " ", r.description)
reg_list.append((r.name, data, desc))
column1_width = max(len(reg[0]) for reg in reg_list) + 2 # padding
column2_width = max(len(reg[1]) for reg in reg_list)
for reg in reg_list:
gdb.write(
"\t{}:{}{}".format(
reg[0],
"".ljust(column1_width - len(reg[0])),
reg[1].rjust(column2_width),
)
)
if reg[2] != reg[0]:
gdb.write(" {}".format(reg[2]))
gdb.write("\n")
def _print_register_fields(self, container_name, form, register):
gdb.write("Fields in {}:\n".format(container_name))
fields = register.fields
if not register.readable():
data = 0
else:
data = self.read(register.address(), register.size)
field_list = []
try:
fields_iter = fields.itervalues()
except AttributeError:
fields_iter = fields.values()
for f in fields_iter:
desc = re.sub(r"\s+", " ", f.description)
if register.readable():
val = data >> f.offset
val &= (1 << f.width) - 1
if f.enum:
if val in f.enum:
desc = f.enum[val][1] + " - " + desc
val = f.enum[val][0]
else:
val = "Invalid enum value: " + self.format(val, form, f.width)
else:
val = self.format(val, form, f.width)
else:
val = "(not readable)"
field_list.append((f.name, val, desc))
column1_width = max(len(field[0]) for field in field_list) + 2 # padding
column2_width = max(len(field[1]) for field in field_list) # padding
for field in field_list:
gdb.write(
"\t{}:{}{}".format(
field[0],
"".ljust(column1_width - len(field[0])),
field[1].rjust(column2_width),
)
)
if field[2] != field[0]:
gdb.write(" {}".format(field[2]))
gdb.write("\n")
def invoke(self, args, from_tty):
s = str(args).split(" ")
form = ""
if s[0] and s[0][0] == "/":
if len(s[0]) == 1:
gdb.write("Incorrect format\n")
return
else:
form = s[0][1:]
if len(s) == 1:
return
s = s[1:]
if s[0].lower() == "help":
gdb.write("Usage:\n")
gdb.write("=========\n")
gdb.write("svd:\n")
gdb.write("\tList available peripherals\n")
gdb.write("svd [peripheral_name]:\n")
gdb.write("\tDisplay all registers pertaining to that peripheral\n")
gdb.write("svd [peripheral_name] [register_name]:\n")
gdb.write("\tDisplay the fields in that register\n")
gdb.write("svd/[format_character] ...\n")
gdb.write("\tFormat values using that character\n")
gdb.write("\td(default):decimal, x: hex, o: octal, b: binary\n")
gdb.write("\n")
gdb.write(
"Both prefix matching and case-insensitive matching is supported for peripherals, registers, clusters and fields.\n"
)
return
if not len(s[0]):
gdb.write("Available Peripherals:\n")
try:
peripherals = self.svd_file.peripherals.itervalues()
except AttributeError:
peripherals = self.svd_file.peripherals.values()
column_width = max(len(p.name) for p in peripherals) + 2 # padding
try:
peripherals = self.svd_file.peripherals.itervalues()
except AttributeError:
peripherals = self.svd_file.peripherals.values()
for p in peripherals:
desc = re.sub(r"\s+", " ", p.description)
gdb.write(
"\t{}:{}{}\n".format(
p.name, "".ljust(column_width - len(p.name)), desc
)
)
return
def warn_if_ambiguous(smart_dict, key):
if smart_dict.is_ambiguous(key):
gdb.write(
"Warning: {} could prefix match any of: {}\n".format(
key, ", ".join(smart_dict.prefix_match_iter(key))
)
)
registers = None
if len(s) >= 1:
peripheral_name = s[0]
if peripheral_name not in self.svd_file.peripherals:
gdb.write("Peripheral {} does not exist!\n".format(s[0]))
return
warn_if_ambiguous(self.svd_file.peripherals, peripheral_name)
peripheral = self.svd_file.peripherals[peripheral_name]
if len(s) == 1:
self._print_registers(peripheral.name, form, peripheral.registers)
if len(peripheral.clusters) > 0:
try:
clusters_iter = peripheral.clusters.itervalues()
except AttributeError:
clusters_iter = peripheral.clusters.values()
gdb.write("Clusters in %s:\n" % peripheral.name)
reg_list = []
for r in clusters_iter:
desc = re.sub(r"\s+", " ", r.description)
reg_list.append((r.name, "", desc))
column1_width = max(len(reg[0]) for reg in reg_list) + 2 # padding
column2_width = max(len(reg[1]) for reg in reg_list)
for reg in reg_list:
gdb.write(
"\t{}:{}{}".format(
reg[0],
"".ljust(column1_width - len(reg[0])),
reg[1].rjust(column2_width),
)
)
if reg[2] != reg[0]:
gdb.write(" {}".format(reg[2]))
gdb.write("\n")
return
cluster = None
if len(s) == 2:
if s[1] in peripheral.clusters:
warn_if_ambiguous(peripheral.clusters, s[1])
cluster = peripheral.clusters[s[1]]
container = peripheral.name + " > " + cluster.name
self._print_registers(container, form, cluster.registers)
elif s[1] in peripheral.registers:
warn_if_ambiguous(peripheral.registers, s[1])
register = peripheral.registers[s[1]]
container = peripheral.name + " > " + register.name
self._print_register_fields(container, form, register)
else:
found = False
for key in fnmatch.filter(peripheral.registers.keys(), s[1]):
register = peripheral.registers[key]
container = peripheral.name + " > " + register.name
self._print_register_fields(container, form, register)
found = True
if not found:
gdb.write(
"Register/cluster {} in peripheral {} does not exist!\n".format(
s[1], peripheral.name
)
)
return
if len(s) == 3:
if s[1] not in peripheral.clusters:
gdb.write(
"Cluster {} in peripheral {} does not exist!\n".format(
s[1], peripheral.name
)
)
return
warn_if_ambiguous(peripheral.clusters, s[1])
cluster = peripheral.clusters[s[1]]
if s[2] not in cluster.registers:
gdb.write(
"Register {} in cluster {} in peripheral {} does not exist!\n".format(
s[2], cluster.name, peripheral.name
)
)
return
warn_if_ambiguous(cluster.registers, s[2])
register = cluster.registers[s[2]]
container = " > ".join([peripheral.name, cluster.name, register.name])
self._print_register_fields(container, form, register)
return
if len(s) == 4:
if s[1] not in peripheral.registers:
gdb.write(
"Register {} in peripheral {} does not exist!\n".format(
s[1], peripheral.name
)
)
return
warn_if_ambiguous(peripheral.registers, s[1])
reg = peripheral.registers[s[1]]
if s[2] not in reg.fields:
gdb.write(
"Field {} in register {} in peripheral {} does not exist!\n".format(
s[2], reg.name, peripheral.name
)
)
return
warn_if_ambiguous(reg.fields, s[2])
field = reg.fields[s[2]]
if not field.writable() or not reg.writable():
gdb.write(
"Field {} in register {} in peripheral {} is read-only!\n".format(
field.name, reg.name, peripheral.name
)
)
return
try:
val = int(s[3], 0)
except ValueError:
gdb.write(
"{} is not a valid number! You can prefix numbers with 0x for hex, 0b for binary, or any python "
"int literal\n".format(s[3])
)
return
if val >= 1 << field.width or val < 0:
gdb.write(
"{} not a valid number for a field with width {}!\n".format(
val, field.width
)
)
return
if not reg.readable():
data = 0
else:
data = self.read(reg.address(), reg.size)
data &= ~(((1 << field.width) - 1) << field.offset)
data |= val << field.offset
self.write(reg.address(), data, reg.size)
return
gdb.write("Unknown input\n")
def complete(self, text, word):
"""Perform tab-completion for the command"""
text = str(text)
s = text.split(" ")
# Deal with the possibility of a '/' parameter
if s[0] and s[0][0] == "/":
if len(s) > 1:
s = s[1:]
else:
return [] # completion after e.g. "svd/x" but before trailing space
if len(s) == 1:
return list(self.svd_file.peripherals.prefix_match_iter(s[0]))
if len(s) == 2:
reg = s[1].upper()
if len(reg) and reg[0] == "&":
reg = reg[1:]
if s[0] not in self.svd_file.peripherals:
return []
per = self.svd_file.peripherals[s[0]]
return list(per.registers.prefix_match_iter(s[1]))
return []
@staticmethod
def read(address, bits=32):
"""Read from memory and return an integer"""
value = gdb.selected_inferior().read_memory(address, bits / 8)
unpack_format = "I"
if bits in BITS_TO_UNPACK_FORMAT:
unpack_format = BITS_TO_UNPACK_FORMAT[bits]
# gdb.write("{:x} {}\n".format(address, binascii.hexlify(value)))
return struct.unpack_from("<" + unpack_format, value)[0]
@staticmethod
def write(address, data, bits=32):
"""Write data to memory"""
gdb.selected_inferior().write_memory(address, bytes(data), bits / 8)
@staticmethod
def format(value, form, length=32):
"""Format a number based on a format character and length"""
# get current gdb radix setting
radix = int(
re.search(r"\d+", gdb.execute("show output-radix", True, True)).group(0)
)
# override it if asked to
if form == "x" or form == "a":
radix = 16
elif form == "o":
radix = 8
elif form == "b" or form == "t":
radix = 2
# format the output
if radix == 16:
# For addresses, probably best in hex too
l = int(math.ceil(length / 4.0))
return "0x" + "{:X}".format(value).zfill(l)
if radix == 8:
l = int(math.ceil(length / 3.0))
return "0" + "{:o}".format(value).zfill(l)
if radix == 2:
return "0b" + "{:b}".format(value).zfill(length)
# Default: Just return in decimal
return str(value)
def peripheral_list(self):
try:
keys = self.svd_file.peripherals.iterkeys()
except AttributeError:
keys = self.svd_file.peripherals.keys()
return list(keys)
def register_list(self, peripheral):
try:
try:
keys = self.svd_file.peripherals[peripheral].registers.iterkeys()
except AttributeError:
keys = self.svd_file.peripherals[peripheral].registers.keys()
return list(keys)
except:
gdb.write("Peripheral {} doesn't exist\n".format(peripheral))
return []
def field_list(self, peripheral, register):
try:
periph = self.svd_file.peripherals[peripheral]
reg = periph.registers[register]
try:
regs = reg.fields.iterkeys()
except AttributeError:
regs = reg.fields.keys()
return list(regs)
except:
gdb.write("Register {} doesn't exist on {}\n".format(register, peripheral))
return []

15
scripts/debug/STM32WB55_CM4.svd Executable file
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205
scripts/debug/flipperapps.py Normal file
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from dataclasses import dataclass
from typing import Optional, Tuple, Dict, ClassVar
import struct
import posixpath
import zlib
import gdb
def get_file_crc32(filename):
with open(filename, "rb") as f:
return zlib.crc32(f.read())
@dataclass
class AppState:
name: str
text_address: int = 0
entry_address: int = 0
other_sections: Dict[str, int] = None
debug_link_elf: str = ""
debug_link_crc: int = 0
DEBUG_ELF_ROOT: ClassVar[Optional[str]] = None
def __post_init__(self):
if self.other_sections is None:
self.other_sections = {}
def get_original_elf_path(self) -> str:
if self.DEBUG_ELF_ROOT is None:
raise ValueError("DEBUG_ELF_ROOT not set; call fap-set-debug-elf-root")
return (
posixpath.join(self.DEBUG_ELF_ROOT, self.debug_link_elf)
if self.DEBUG_ELF_ROOT
else self.debug_link_elf
)
def is_debug_available(self) -> bool:
have_debug_info = bool(self.debug_link_elf and self.debug_link_crc)
if not have_debug_info:
print("No debug info available for this app")
return False
debug_elf_path = self.get_original_elf_path()
debug_elf_crc32 = get_file_crc32(debug_elf_path)
if self.debug_link_crc != debug_elf_crc32:
print(
f"Debug info ({debug_elf_path}) CRC mismatch: {self.debug_link_crc:08x} != {debug_elf_crc32:08x}, rebuild app"
)
return False
return True
def get_gdb_load_command(self) -> str:
load_path = self.get_original_elf_path()
print(f"Loading debug information from {load_path}")
load_command = (
f"add-symbol-file -readnow {load_path} 0x{self.text_address:08x} "
)
load_command += " ".join(
f"-s {name} 0x{address:08x}"
for name, address in self.other_sections.items()
)
return load_command
def get_gdb_unload_command(self) -> str:
return f"remove-symbol-file -a 0x{self.text_address:08x}"
@staticmethod
def get_gdb_app_ep(app) -> int:
return int(app["state"]["entry"])
@staticmethod
def parse_debug_link_data(section_data: bytes) -> Tuple[str, int]:
# Debug link format: a null-terminated string with debuggable file name
# Padded with 0's to multiple of 4 bytes
# Followed by 4 bytes of CRC32 checksum of that file
elf_name = section_data[:-4].decode("utf-8").split("\x00")[0]
crc32 = struct.unpack("<I", section_data[-4:])[0]
return (elf_name, crc32)
@classmethod
def from_gdb(cls, gdb_app: "AppState") -> "AppState":
state = AppState(str(gdb_app["manifest"]["name"].string()))
state.entry_address = cls.get_gdb_app_ep(gdb_app)
app_state = gdb_app["state"]
if debug_link_size := int(app_state["debug_link_info"]["debug_link_size"]):
debug_link_data = (
gdb.selected_inferior()
.read_memory(
int(app_state["debug_link_info"]["debug_link"]), debug_link_size
)
.tobytes()
)
state.debug_link_elf, state.debug_link_crc = AppState.parse_debug_link_data(
debug_link_data
)
for idx in range(app_state["mmap_entry_count"]):
mmap_entry = app_state["mmap_entries"][idx]
section_name = mmap_entry["name"].string()
section_addr = int(mmap_entry["address"])
if section_name == ".text":
state.text_address = section_addr
else:
state.other_sections[section_name] = section_addr
return state
class SetFapDebugElfRoot(gdb.Command):
"""Set path to original ELF files for debug info"""
def __init__(self):
super().__init__(
"fap-set-debug-elf-root", gdb.COMMAND_FILES, gdb.COMPLETE_FILENAME
)
self.dont_repeat()
def invoke(self, arg, from_tty):
AppState.DEBUG_ELF_ROOT = arg
try:
global helper
print(f"Set '{arg}' as debug info lookup path for Flipper external apps")
helper.attach_to_fw()
gdb.events.stop.connect(helper.handle_stop)
gdb.events.exited.connect(helper.handle_exit)
except gdb.error as e:
print(f"Support for Flipper external apps debug is not available: {e}")
class FlipperAppStateHelper:
def __init__(self):
self.app_type_ptr = None
self.app_list_ptr = None
self.app_list_entry_type = None
self._current_apps: list[AppState] = []
self.set_debug_mode(True)
def _walk_app_list(self, list_head):
while list_head:
if app := list_head["data"]:
yield app.dereference()
list_head = list_head["next"]
def _exec_gdb_command(self, command: str) -> bool:
try:
gdb.execute(command)
return True
except gdb.error as e:
print(f"Failed to execute GDB command '{command}': {e}")
return False
def _sync_apps(self) -> None:
self.set_debug_mode(True)
if not (app_list := self.app_list_ptr.value()):
print("Reset app loader state")
for app in self._current_apps:
self._exec_gdb_command(app.get_gdb_unload_command())
self._current_apps = []
return
loaded_apps: dict[int, gdb.Value] = dict(
(AppState.get_gdb_app_ep(app), app)
for app in self._walk_app_list(app_list[0])
)
for app in self._current_apps.copy():
if app.entry_address not in loaded_apps:
print(f"Application {app.name} is no longer loaded")
if not self._exec_gdb_command(app.get_gdb_unload_command()):
print(f"Failed to unload debug info for {app.name}")
self._current_apps.remove(app)
for entry_point, app in loaded_apps.items():
if entry_point not in set(app.entry_address for app in self._current_apps):
new_app_state = AppState.from_gdb(app)
print(f"New application loaded. Adding debug info")
if self._exec_gdb_command(new_app_state.get_gdb_load_command()):
self._current_apps.append(new_app_state)
else:
print(f"Failed to load debug info for {new_app_state}")
def attach_to_fw(self) -> None:
print("Attaching to Flipper firmware")
self.app_list_ptr = gdb.lookup_global_symbol(
"flipper_application_loaded_app_list"
)
self.app_type_ptr = gdb.lookup_type("FlipperApplication").pointer()
self.app_list_entry_type = gdb.lookup_type("struct FlipperApplicationList_s")
def handle_stop(self, event) -> None:
self._sync_apps()
def handle_exit(self, event) -> None:
self.set_debug_mode(False)
def set_debug_mode(self, mode: bool) -> None:
gdb.execute(f"set variable furi_hal_debug_gdb_session_active = {int(mode)}")
# Init additional 'fap-set-debug-elf-root' command and set up hooks
SetFapDebugElfRoot()
helper = FlipperAppStateHelper()
print("Support for Flipper external apps debug is loaded")

109
scripts/debug/flipperversion.py Normal file
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from dataclasses import dataclass, field
from typing import Dict, Optional
import gdb
# Must match FuriHalRtcRegisterVersion index in FuriHalRtcRegister enum
RTC_BACKUP_VERSION_REGISTER_IDX = 0x2
RTC_BASE = 0x40002800
RTC_BACKUP_BASE = RTC_BASE + 0x50
VERSION_REGISTER_ADDRESS = RTC_BACKUP_BASE + RTC_BACKUP_VERSION_REGISTER_IDX * 4
VERSION_STRUCT_MAGIC = 0xBE40
@dataclass
class VersionData:
git_hash: str
git_branch: str
build_date: str
version: str
target: int
build_is_dirty: bool
extra: Optional[Dict[str, str]] = field(default_factory=dict)
class VersionLoader:
def __init__(self, version_ptr):
self.version_ptr = version_ptr
self._cstr_type = gdb.lookup_type("char").pointer()
self._uint_type = gdb.lookup_type("unsigned int")
version_signature = version_ptr.dereference().cast(self._uint_type)
is_versioned = (version_signature & (0xFFFF)) == VERSION_STRUCT_MAGIC
if is_versioned:
self._version_data = self.load_versioned(
major=version_signature >> 16 & 0xFF,
minor=version_signature >> 24 & 0xFF,
)
else:
self._version_data = self.load_unversioned()
@property
def version(self) -> VersionData:
return self._version_data
def load_versioned(self, major, minor):
if major != 1:
raise ValueError("Unsupported version struct major version")
# Struct version 1.0
extra_data = int(self.version_ptr[5].cast(self._uint_type))
return VersionData(
git_hash=self.version_ptr[1].cast(self._cstr_type).string(),
git_branch=self.version_ptr[2].cast(self._cstr_type).string(),
build_date=self.version_ptr[3].cast(self._cstr_type).string(),
version=self.version_ptr[4].cast(self._cstr_type).string(),
target=extra_data & 0xF,
build_is_dirty=bool((extra_data >> 8) & 0xF),
)
def load_unversioned(self):
"""Parse an early version of the version struct."""
extra_data = int(self.version_ptr[5].cast(self._uint_type))
return VersionData(
git_hash=self.version_ptr[0].cast(self._cstr_type).string(),
git_branch=self.version_ptr[1].cast(self._cstr_type).string(),
# branch number is #2, but we don't care about it
build_date=self.version_ptr[3].cast(self._cstr_type).string(),
version=self.version_ptr[4].cast(self._cstr_type).string(),
target=extra_data & 0xF,
build_is_dirty=bool((extra_data >> 8) & 0xF),
)
class FlipperFwVersion(gdb.Command):
"""Print the version of Flipper's firmware."""
def __init__(self):
super(FlipperFwVersion, self).__init__("fw-version", gdb.COMMAND_USER)
def invoke(self, arg, from_tty):
void_ptr_type = gdb.lookup_type("void").pointer().pointer()
version_ptr_ptr = gdb.Value(VERSION_REGISTER_ADDRESS).cast(void_ptr_type)
if not version_ptr_ptr:
print("RTC version register is NULL")
return
version_ptr = version_ptr_ptr.dereference()
if not version_ptr:
print("Pointer to version struct is NULL")
return
version_struct = version_ptr.cast(void_ptr_type)
v = VersionLoader(version_struct)
print("Firmware version on attached Flipper:")
print(f"\tVersion: {v.version.version}")
print(f"\tBuilt on: {v.version.build_date}")
print(f"\tGit branch: {v.version.git_branch}")
print(f"\tGit commit: {v.version.git_hash}")
print(f"\tDirty: {v.version.build_is_dirty}")
print(f"\tHW Target: {v.version.target}")
FlipperFwVersion()

90
scripts/debug/fw.jflash Normal file
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AppVersion = 76803
FileVersion = 2
[GENERAL]
aATEModuleSel[24] = 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
ConnectMode = 0
CurrentFile = "..\build\latest\firmware.bin"
DataFileSAddr = 0x08000000
GUIMode = 0
HostName = ""
TargetIF = 1
USBPort = 0
USBSerialNo = 0x00000000
UseATEModuleSelection = 0
[JTAG]
IRLen = 0
MultipleTargets = 0
NumDevices = 0
Speed0 = 8000
Speed1 = 8000
TAP_Number = 0
UseAdaptive0 = 0
UseAdaptive1 = 0
UseMaxSpeed0 = 0
UseMaxSpeed1 = 0
[CPU]
NumInitSteps = 2
InitStep0_Action = "Reset"
InitStep0_Value0 = 0x00000000
InitStep0_Value1 = 0x00000000
InitStep0_Comment = ""
InitStep1_Action = "Halt"
InitStep1_Value0 = 0xFFFFFFFF
InitStep1_Value1 = 0xFFFFFFFF
InitStep1_Comment = ""
NumExitSteps = 1
ExitStep0_Action = "Reset"
ExitStep0_Value0 = 0x00000005
ExitStep0_Value1 = 0x00000032
ExitStep0_Comment = ""
UseScriptFile = 0
ScriptFile = ""
UseRAM = 1
RAMAddr = 0x20000000
RAMSize = 0x00030000
CheckCoreID = 1
CoreID = 0x6BA02477
CoreIDMask = 0x0F000FFF
UseAutoSpeed = 0x00000001
ClockSpeed = 0x00000000
EndianMode = 0
ChipName = "ST STM32WB55RG"
[FLASH]
aRangeSel[1] = 0-255
BankName = "Internal flash"
BankSelMode = 1
BaseAddr = 0x08000000
NumBanks = 1
[PRODUCTION]
AutoPerformsDisconnect = 0
AutoPerformsErase = 1
AutoPerformsProgram = 1
AutoPerformsSecure = 0
AutoPerformsStartApp = 1
AutoPerformsUnsecure = 0
AutoPerformsVerify = 0
EnableFixedVTref = 0
EnableTargetPower = 0
EraseType = 1
FixedVTref = 0x00000CE4
MonitorVTref = 0
MonitorVTrefMax = 0x0000157C
MonitorVTrefMin = 0x000003E8
OverrideTimeouts = 0
ProgramSN = 0
SerialFile = ""
SNAddr = 0x00000000
SNInc = 0x00000001
SNLen = 0x00000004
SNListFile = ""
SNValue = 0x00000001
StartAppType = 1
TargetPowerDelay = 0x00000014
TimeoutErase = 0x00003A98
TimeoutProgram = 0x00002710
TimeoutVerify = 0x00002710
VerifyType = 1
[PERFORMANCE]
DisableSkipBlankDataOnProgram = 0x00000000
PerfromBlankCheckPriorEraseChip = 0x00000001
PerfromBlankCheckPriorEraseSelectedSectors = 0x00000001

10
scripts/debug/gdbinit Normal file
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set confirm off
set pagination off
set print pretty on
set print object on
set print static-members on
set print vtbl on
set print demangle on
set demangle-style gnu-v3
set print sevenbit-strings off

107
scripts/debug/stm32wbx.cfg Normal file
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# script for stm32wbx family
#
# stm32wb devices support both JTAG and SWD transports.
#
source [find target/swj-dp.tcl]
source [find mem_helper.tcl]
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME stm32wbx
}
set _ENDIAN little
# Work-area is a space in RAM used for flash programming
# By default use 64kB
if { [info exists WORKAREASIZE] } {
set _WORKAREASIZE $WORKAREASIZE
} else {
set _WORKAREASIZE 0x10000
}
#jtag scan chain
if { [info exists CPUTAPID] } {
set _CPUTAPID $CPUTAPID
} else {
if { [using_jtag] } {
set _CPUTAPID 0x6ba00477
} else {
# SWD IDCODE (single drop, arm)
set _CPUTAPID 0x6ba02477
}
}
swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
if {[using_jtag]} {
jtag newtap $_CHIPNAME bs -irlen 5
}
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap
$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME stm32l4x 0 0 0 0 $_TARGETNAME
# Common knowledges tells JTAG speed should be <= F_CPU/6.
# F_CPU after reset is MSI 4MHz, so use F_JTAG = 500 kHz to stay on
# the safe side.
#
# Note that there is a pretty wide band where things are
# more or less stable, see http://openocd.zylin.com/#/c/3366/
adapter speed 24000
adapter srst delay 100
if {[using_jtag]} {
jtag_ntrst_delay 100
}
reset_config srst_nogate
if {![using_hla]} {
# if srst is not fitted use SYSRESETREQ to
# perform a soft reset
cortex_m reset_config sysresetreq
}
$_TARGETNAME configure -event reset-init {
# CPU comes out of reset with MSI_ON | MSI_RDY | MSI Range 4 MHz.
# Configure system to use MSI 24 MHz clock, compliant with VOS default Range1.
# 2 WS compliant with VOS=Range1 and 24 MHz.
mmw 0x58004000 0x00000102 0 ;# FLASH_ACR |= PRFTBE | 2(Latency)
mmw 0x58000000 0x00000091 0 ;# RCC_CR = MSI_ON | MSI Range 24 MHz
# Boost JTAG frequency
adapter speed 24000
}
$_TARGETNAME configure -event reset-start {
# Reset clock is MSI (4 MHz)
adapter speed 24000
}
$_TARGETNAME configure -event examine-end {
# Enable debug during low power modes (uses more power)
# DBGMCU_CR |= DBG_STANDBY | DBG_STOP | DBG_SLEEP
mmw 0xE0042004 0x00000007 0
# Stop watchdog counters during halt
# DBGMCU_APB1_FZR1 |= DBG_IWDG_STOP | DBG_WWDG_STOP
mmw 0xE004203C 0x00001800 0
}
$_TARGETNAME configure -event trace-config {
# Set TRACE_IOEN; TRACE_MODE is set to async; when using sync
# change this value accordingly to configure trace pins
# assignment
mmw 0xE0042004 0x00000020 0
}
$_TARGETNAME configure -event gdb-detach {
resume
}