118 lines
4.7 KiB
Python
118 lines
4.7 KiB
Python
#!/usr/bin/env python3
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# coding=utf-8
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import json
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import re
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import sys
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# 从符号表fixrom.sym获取非函数内容, 保存到例外配置文件
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# 参数(fixrom.sym路径, 例外配置文件路径)
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def GetDataFixrom(sym_path, except_file):
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result = {}
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# 变量列表
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var_list = ['crc16_tab', '_ctype', 'crc16_tab', '__rom_copy_start', '__rom_copy_ram_start', '__rom_bss_end']
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with open(sym_path, 'r') as fixrom_data:
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for line in fixrom_data.readlines():
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# 正则匹配，提取变量/函数名和地址
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re_bds = "(.*) = (.*);"
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p = re.findall(re_bds, line, re.S)
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# 字符串转数字
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tmp = int(p[0][1], 16)
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# 初步筛选 堆,栈,BSS+DATA段的内容
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if ((tmp >= 0x02017000 and tmp <= 0x02039000) or \
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(tmp >= 0x0203D000 and tmp <= 0x0203F000) or \
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(tmp >= 0x0203f000 and tmp <= 0x02040000) or\
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(tmp >= 0x00010800 and tmp <= 0x00040800)):
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# 根据名字再次筛选非函数内容
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if p[0][0][0:2] == "g_" or \
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p[0][0] in var_list:
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result[p[0][0]] = p[0][1]
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# 将字典里的内容根据键值对，写入到例外配置文件
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with open(except_file, 'w') as wr_j:
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json.dump(result, wr_j)
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return
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# 从符号表Firmware_Base.sym获取非函数内容，保存到例外配置文件
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# 参数(Firmware_Base.sym路径, 例外配置文件路径)
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def GetDataRom(sym_path, except_file):
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result = {}
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# 变量列表
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with open(sym_path, 'r') as fixrom_data:
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for line in fixrom_data.readlines():
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# 正则匹配，提取变量/函数名和地址
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re_bds = "(.*) = (.*);"
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p = re.findall(re_bds, line, re.S)
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tmp = (int(p[0][1], 16))
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# 根据二进制范围,提取 DATA/BSS段的内容,放到字典中
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if ((tmp >= 0x02000400 and tmp <= 0x02003400) or \
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(tmp >= 0x02001000 and tmp <= 0x02001420) or \
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(p[0][0][0:2] == 'g_')):
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result[p[0][0]] = p[0][1]
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# 将字典里的内容根据键值对，写入到例外配置文件
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with open(except_file, 'w') as wr_j:
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json.dump(result, wr_j)
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return
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# 功能:从asm文件中提取16进制数
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# 参数:output路径
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# 返回值: 返回.word后的十六进制数列表
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def get_asm_data(asm_path):
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# 用来存放 .word 后的十六进制数
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word_list = []
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with open(asm_path, 'r') as fp:
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# 逐行读取, 并提取 .word 后面的十六进制数
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for word in fp.readlines():
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re_bds = ".word (.*)\n"
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p = re.findall(re_bds, word, re.S)
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# 正则匹配成功,把十六进制数放到列表里
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if len(p) > 0:
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word_list.append(p[0])
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return word_list
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# 参数: asm文件路径, 符号表路径, 例外配置文件路径
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def ArmThumbAsmCheck(asm_path, symbol_table_path, exception_file_path):
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# 从.asm文件获取 .word后的地址,返回值为列表
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word_list = get_asm_data(asm_path)
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# 相同函数的报错信息，只输出一次
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flag_print = []
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# 根据.word后面的地址。在符号表文件中和例外配置文件中查找是否存在
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with open(symbol_table_path, 'r') as sym_fp:
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with open(exception_file_path, 'r') as expt_fp:
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expt_text = expt_fp.read()
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sym_text = sym_fp.read()
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for word in word_list:
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if word in sym_text:
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if word not in expt_text:
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re_bds = '(.*) = ' + word
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func = re.findall(re_bds, sym_text)[0]
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print('%-30s%-30s' %(func,"Error：函数中调用rom化的函数不符合当先rom化函数调用规范"))
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return -1;
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return
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if __name__ == '__main__':
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# start_time = time.time()
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# asm文件路径
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asm_path = sys.argv[1]
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# 符号表路径
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sym_path = sys.argv[2]
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# 例外配置文件路径
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expt_file = sys.argv[3]
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try:
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f_exec = open(expt_file, 'r')
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f_exec.close()
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except IOError:
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# 从符号表fixrom.sym获取非函数内容, 保存到例外配置文件
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if sym_path[-10:]=="fixrom.sym":
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GetDataFixrom(sym_path, expt_file)
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elif sym_path[-17:]=="Firmware_Base.sym":
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GetDataRom(sym_path, expt_file)
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# 测试函数
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ret = ArmThumbAsmCheck(asm_path, sym_path, expt_file)
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if ret==-1:
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sys.exit(-1)
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# end_time = time.time()
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# print('(>_<)执行时间: ' + str(end_time - start_time))
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