python 自动解析oops异常符号

#!/usr/bin/python3
# -*- coding:UTF-8 -*-
import sys
import os
import glob
import re
import subprocess



if len(sys.argv) < 3:
    print("Usage: ./xx.py tool-chain-gnu- vmlinux-file-path log-file-pach")
    sys.exit()

print("script name:", sys.argv[0])
for i in range(1, len(sys.argv)):
  print("para",i,":", sys.argv[i])

CROSS_COMPILE=sys.argv[1]
VMLINUX=sys.argv[2]
log_f=sys.argv[3]


vmlinux_path=os.path.dirname(os.path.realpath(VMLINUX))
objdump_f=vmlinux_path+"/vmlinux.objdump"
print("vmlinux dump 文件——" + objdump_f)

if os.path.exists(objdump_f):
    print("objdump file already exist, skip objdump")
else:
    dump_cmd=CROSS_COMPILE+"objdump -d "+VMLINUX+ " > "+objdump_f
    print("objdump cmd:",dump_cmd)
    print("objdump...waiting...")
    os.system(dump_cmd)



def cut_section(curr_f, to_find):
    key_str_s="<"+to_find+">:"
    key_str_e="\n"

#    print("start:",key_str_s, "end:",key_str_e)

    file_o=open(curr_f)
    ll=file_o.readlines()

    for c in ll:
        if key_str_s in c:
#            print (c)
            index_s=ll.index(c)
#            print("index_s:",index_s)
            index_e=ll.index(key_str_e, index_s)    #find the first key_str_e from index_s
#            print("index_e:",index_e)

#            for i in range(index_s, index_e):
#                print ll[i].strip("\n")

    file_o.close
    return ll[index_s:index_e+2] #index_e+2 get the start line of the next function, also is the end of this function.


def find_str_infile(curr_f):
    key1="+0x"
    key2="/0x"

#    print("key1:",key1, "key2:",key2)

    file_o=open(curr_f)
    ll=file_o.readlines()
    dict_l=[]

    for c in ll:
        if key1 in c and key2 in c:
#            print(c)
            #example: [ 6684.448646] [<ffffffff811c71a1>] ? __slab_alloc.isra.64.constprop.67+0x39/0x4c
            #[ 18.185487] [<ffffff90089c5ad4>] __slab_alloc+0x834/0xa48
            #[c0325e80] [c0005264] do_softirq+0x74/0x7c
            #
            mo = re.search(r'([0-9a-fA-F]{8,16})>?]\s+\??\s*([0-9a-zA-Z_.]{3,50})\+0x([0-9a-fA-F]{1,4})/0x([0-9a-fA-F]{1,4})',c)
            #[0-9a-fA-F]{8,16}
            #([0-9a-fA-F]{8,16}).*([0-9a-zA-Z]{3,20})

            dict={}
            dict['addr']=mo.group(1)
            dict['fun']=mo.group(2)
            dict['off']=mo.group(3)
            dict['len']=mo.group(4)
#            print (dict['addr'], "~~~", dict['fun'], dict['off'],dict['len'])
            dict_l.append(dict)

    for i in range(0, len(dict_l)):
        dic=dict_l[i]
#        print (dic['addr'], dic['fun'], dic['off'],dic['len'])

    file_o.close
    return dict_l


dict_o=find_str_infile(log_f)
for i in range(0, len(dict_o)):
#for i in range(0, 10):
    dic=dict_o[i]
#    print ("outer:",dic['addr'], dic['fun'], dic['off'],dic['len'])
    list_out = cut_section(objdump_f, dic['fun'])
    print("----------------")
#    for i in range(0, len(list_out)):
#        print(list_out[i].strip("\n"))
#    print("1----------------")
#    print(list_out[0])
#    print(list_out[-1])
#    print("2----------------")
    func_s=list_out[0].split(' ')[0]
    func_e=list_out[-1].split(' ')[0]
#    print(func_s)
#    print(func_e)
    func_len=hex(int(func_e,16)-int(func_s,16))
#    print("func_len:",func_len)

    if (int(func_len,16) == int(dic['len'], 16)):
#        print("match_or_not ==", "func_name:",dic['fun'])
        func_pc_index=hex(int(func_s,16) + int(dic['off'],16))
#        print("func_pc_index:", func_pc_index)
        func_pc_index_str=(func_pc_index+':').strip("0x")
#        print("func_pc_index_str:", func_pc_index_str)

        for i in range(0, len(list_out)-1):
            if (func_pc_index_str in list_out[i]):
                cmd_str=CROSS_COMPILE+"addr2line -e "+VMLINUX+"  -i "+func_pc_index
                #print (cmd_str)
                #os.system(cmd_str)
                addr2line_out = subprocess.getoutput(cmd_str)
                list_out[i]=list_out[i]+"[---above_pc_from--- ]"+dic['fun']+"+"+"0x"+dic['off']+"/"+"0x"+dic['len'] +"---"+addr2line_out
            print(list_out[i].strip("\n"))



        #print ("xx",list_out[list_out.index(func_pc_index.strip("0x"))] )
    else:
        print("function len not match !=", "func_name:",dic['fun'],"vmlinuxfile func_len:", func_len, "msgfile func_len:", dic['len'])