1 import os

     2 from subprocess import Popen,PIPE

     3 from ..toolchain_makefile import toolchain_makefile

     4 import hashlib

     5 

     6 class LPC_target(toolchain_makefile):

     7     #extension = ".ld"

     8     #DebugEnabled = False

     9     def __init__(self, CTRInstance):

    10         self.binmd5key = None

    11         toolchain_makefile.__init__(self, CTRInstance)

    12 

    13     def _GetBinMD5FileName(self):

    14         return os.path.join(self.buildpath, "lastbuildPLCbin.md5")

    15 

    16     def _get_md5_header(self):

    17         """Returns signature header"""

    18         size = int(Popen(

    19              ['arm-elf-size','-B',os.path.join(self.buildpath,"ArmPLC_rom.elf")],

    20              stdout=PIPE).communicate()[0].splitlines()[1].split()[0])

    21         res = "&" + hashlib.md5(open(os.path.join(self.buildpath, "ArmPLC_rom.bin"), "rb").read(size)).hexdigest() + '\n' +\

    22               "$" + str(size) + '\n'

    23         return res

    24 

    25     def GetBinaryCode(self):

    26         """Returns ready to send signed + sized intel formated hex program"""

    27         try:

    28             res = self._get_md5_header() +\

    29                    open(os.path.join(self.buildpath, "ArmPLC_rom.hex"), "r").read()

    30             return res

    31         except Exception, e:

    32             return None

    33 

    34     def _get_cached_md5_header(self):

    35         if self.binmd5key is not None:

    36             return self.binmd5key

    37         else:

    38             try:

    39                 return open(self._GetBinMD5FileName(), "r").read()

    40             except IOError, e:

    41                 return None

    42 

    43     def ResetBinaryCodeMD5(self, mode):

    44         if mode == "BOOTLOADER":

    45             self.binmd5key = None

    46             try:

    47                 os.remove(self._GetBinMD5FileName())

    48             except Exception, e:

    49                 pass

    50         else:

    51             return toolchain_makefile.ResetBinaryCodeMD5(self)

    52 

    53     def GetBinaryCodeMD5(self, mode):

    54         if mode == "BOOTLOADER":

    55             return self._get_cached_md5_header()

    56         else:

    57             return toolchain_makefile.GetBinaryCodeMD5(self)

    58 

    59     def build(self):

    60         res = toolchain_makefile.build(self)

    61         if res:

    62             self.binmd5key = self._get_md5_header()

    63             f = open(self._GetBinMD5FileName(), "w")

    64             f.write(self.binmd5key)

    65             f.close()

    66             try:

    67                 self.CTRInstance.logger.write(

    68                     _("Binary is %s bytes long\n")%

    69                         str(os.path.getsize(

    70                             os.path.join(self.buildpath, "ArmPLC_rom.bin"))))

    71             except Exception, e:

    72                 pass

    73         return res

    74