Android 5.1编译大于2G的OTA包是会出 Android OverflowError: size does not fit in an int或者would require ZIP64 ex

Android 5.1编译大于2G的OTA包是会出 AndroidOverflowError: size does not fit in an int或者would require ZIP64extensions，这样的错误

网上的解决方法只能解决第二种错误

 

当system分区预制过多apk时如果img size超过2G 在make otapackage时会报如下错误

 

 zipfile.LargeZipFile: Zipfile size wouldrequire ZIP64 extensions

 

或

 

in writestr zinfo.CRC = crc32(bytes) &0xffffffff # CRC-32 checksum OverflowError: size does not fit in an int

 

 

//http://blog.csdn.net/sergeycao

 

 

这是由于python 2.7 脚本限制

 

参考/prebuilts/python/linux-x86/2.7.5/lib/python2.7/

 

ZIP64_LIMIT = (1 << 31) - 1       (31bits相当于2G)

 

 

 

python 3.0+ 已提供solution,  但目前Android 编译环境使用2.x 语法与 3.0不兼容

 

对此google提供一个workaround solution

 

参考以下网址有提供详细patch内容

 

https://android-review.googlesource.com/#/c/142984

 

(但此方法占时提高write size 到32bits相当于4G, 如果超过4G仍会出现问题)

 

 

 

另外还需修改一下脚本  build/tool/releasetools/

 

1、sign_target_files_apks

2、replace_img_from_target_files.py

3、ota_from_target_files

4、img_from_target_files.py

5 、img_from_target_files

6、common.py

7、add_img_to_target_files

 

针对所有zipfile.ZipFile  添加最后allowZip64=True 参数值

 

ex:

 

原始文件：

 

output_zip =zipfile.ZipFile(filename, "a", compression=zipfile.ZIP_DEFLATED)

修改为：

 

output_zip =zipfile.ZipFile(filename, "a", compression=zipfile.ZIP_DEFLATED,allowZip64=True)

 

 

 

跟踪源代码发现，

./build/tools/releasetools/add_img_to_target_files

 

def AddSystem(output_zip,prefix="IMAGES/", recovery_img=None, boot_img=None):

 """Turn the contents of SYSTEM into a system image andstore it in

 output_zip."""

 

 prebuilt_path = os.path.join(OPTIONS.input_tmp, prefix,"system.img")

  ifos.path.exists(prebuilt_path):

   print "system.img already exists in %s, no need to rebuild..."% (prefix,)

   return

 

  defoutput_sink(fn, data):

    ofile = open(os.path.join(OPTIONS.input_tmp,"SYSTEM",fn),"w")

    ofile.write(data)

    ofile.close()

 

  ifOPTIONS.rebuild_recovery:

   print("Building new recovery patch")

   common.MakeRecoveryPatch(OPTIONS.input_tmp, output_sink, recovery_img,boot_img,

                            info_dict=OPTIONS.info_dict)

 

 block_list = common.MakeTempFile(prefix="system-blocklist-",suffix=".map")

 imgname = BuildSystem(OPTIONS.input_tmp, OPTIONS.info_dict,

                        block_list=block_list)

 

 print"======================================================================================imgname:",imgname

 

#  with open(imgname,"rb") as f:

#   common.ZipWriteStr(output_zip, prefix + "system.img",f.read())

#  withopen(block_list, "rb") as f:

#   common.ZipWriteStr(output_zip, prefix + "system.map",f.read())

  print"system",  prefix +"system.img"

  with open(imgname,"rb") as f:

   output_zip.write(imgname, prefix + "system.img")

  with open(block_list,"rb") as f:

   output_zip.write(block_list, prefix + "system.map")

 

ZipWriteStr不能支持大于2G的文件， Write就没这种限制

 

./build/releasetools/common.py

 

 

  def_WriteUpdate(self, script, output_zip):

   partition = self.partition

#    withopen(self.path + ".transfer.list", "rb") as f:

#     ZipWriteStr(output_zip, partition + ".transfer.list",f.read())

#    withopen(self.path + ".new.dat", "rb") as f:

#     ZipWriteStr(output_zip, partition + ".new.dat", f.read())

#    withopen(self.path + ".patch.dat", "rb") as f:

#     ZipWriteStr(output_zip, partition + ".patch.dat", f.read(),

#                        compression=zipfile.ZIP_STORED)

    with open(self.path+ ".transfer.list", "rb") as f:

      output_zip.write(self.path +".transfer.list", partition + ".transfer.list")

    with open(self.path+ ".new.dat", "rb") as f:

     output_zip.write(self.path + ".new.dat", partition +".new.dat")

    with open(self.path+ ".patch.dat", "rb") as f:

      output_zip.write(self.path +".patch.dat", partition + ".patch.dat",

                        zipfile.ZIP_STORED)

 

 

   call = (('block_image_update("%s", '

            'package_extract_file("%s.transfer.list"), '

            '"%s.new.dat", "%s.patch.dat");\n') %

           (self.device, partition, partition, partition))

   script.AppendExtra(script._WordWrap(call))