incubator-nuttx/tools/parsecallstack.py

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#!/usr/bin/python
# -*- coding:utf-8 -*-
#
# nuttx/tools/parsecallstack.py
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
import os
import argparse
def parse_args():
parser = argparse.ArgumentParser("\n\
parsecallstack.py -c cputype -f filename\n\
This file can get the call stack when you get the log with the\n\
register values from R0 to R15, together with the stack dump.\n\n\
Then you can get a file with name callstack.cmm, run this file in\n\
Trace32 simulator, load the symbol accoring to the indication,\n\
the call stack will pop up.\n\n\
Trace32 software is avaliable at: https://www.lauterbach.com\n")
parser.add_argument("-f", "--filename", action = "store",
help = "log file with registers and stack information")
parser.add_argument("-c", "--cputype", action = "store",
help = "It supports ARM family CPU such as:\n\
\"CortexM0\"\n\
\"CortexM1\"\n\
\"CortexM3\"\n\
\"CortexM4\"\n\
\"CortexM7\"\n\
\"CortexM23\"\n\
\"CortexM33\"\n\
\"CortexM35P\"\n\
\"CortexR5\"\n\
\"CortexR7\"\n\
\"CortexA5\"\n\
\"CortexA7\"\n\
")
args = parser.parse_args()
return args
def get_regs(filename):
reglist = []
with open(filename, mode='r') as fl:
for line in fl:
lst = line.strip('\n').split(' ')
if "R0:" in lst:
reglist = lst[-8:]
if "R8:" in lst:
reglist += lst[-8:]
return reglist
def get_stackvalue(filename):
stackvalue = []
first = 1
with open(filename, mode='r') as fl:
for line in fl:
lst = line.strip('\n').split(' ')
if "up_stackdump:" in lst:
if first == 1:
first += 1
# strip ":" of sp
sp = lst[-9].strip(':')
# The first item is the sp to restore the stack.
stackvalue.append(sp)
stackvalue += lst[-8:]
return stackvalue
def generate_cmm(cpu, regs, stackvalue):
dir = os.getcwd()
filename = dir + "\\callstack.cmm"
with open(filename, mode='w') as fl:
# Select the CPU and symbol.
fl.write("SYStem.CPU " + cpu + "\n")
fl.write("SYS.M UP\n")
fl.write("Data.LOAD *\n")
fl.write("\n")
# Set R0-R15.
for num in range(len(regs)):
fl.write("Register.Set R" + str(num) + " 0x" + regs[num] +'\n')
fl.write('\n')
# Recover the value in stack.
sp = int("0x" + stackvalue[0], 16)
for num in range(len(stackvalue) - 1):
address = hex(sp + num * 4)
value = stackvalue[num + 1]
fl.write("Data.Set ZSD:" + str(address) + " %LE %Long 0x"
+ str(value) +'\n')
fl.write('\n')
# Show the call stack.
fl.write("data.view %sYmbol.long " + str(hex(sp)) + '\n')
fl.write("frame.view /Locals /Caller" +'\n')
if __name__ == "__main__":
try:
args = parse_args()
filename = args.filename
cpu = args.cputype
if (os.path.isfile(filename)):
regs = get_regs(filename)
stackvalue = get_stackvalue(filename)
generate_cmm(cpu, regs, stackvalue)
else:
print("The file is not exist!")
except TypeError:
print("Please provide the log file!")