targets/typemapping.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Mon, 18 Apr 2016 18:56:51 +0300
changeset 1478 69fe0b81e951
parent 1433 4a45f6642523
child 1571 486f94a8032c
permissions -rw-r--r--
make attribute CFLAGS and LDFLAGS optional and add default empty value

Actually CFLAGS and LDFLAGS are not required and can be empty.
Without default empty value if target platform in project settings was
set to "Linux" CFLAGS and LDFLAGS was initialized with NoneType.
The result was broken build and it wasn't to save/load project with
such settings.

Traceback (most recent call last):
File "/home/developer/WorkData/PLC/beremiz/beremiz/ProjectController.py", line 956, in _Build
if not builder.build() :
File "/home/developer/WorkData/PLC/beremiz/beremiz/targets/toolchain_gcc.py", line 96, in build
Builder_CFLAGS = ' '.join(self.getBuilderCFLAGS())
TypeError: sequence item 0: expected string, NoneType found
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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#
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#Copyright (C) 2011: Edouard TISSERANT and Laurent BESSARD
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#
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#See COPYING file for copyrights details.
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#
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#This library is free software; you can redistribute it and/or
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#modify it under the terms of the GNU General Public
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#License as published by the Free Software Foundation; either
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#version 2.1 of the License, or (at your option) any later version.
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#
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#This library is distributed in the hope that it will be useful,
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#but WITHOUT ANY WARRANTY; without even the implied warranty of
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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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#General Public License for more details.
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#
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#You should have received a copy of the GNU General Public
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#License along with this library; if not, write to the Free Software
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#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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import ctypes
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ctypes.pythonapi.PyString_AsString.argtypes = (ctypes.c_void_p,)
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ctypes.pythonapi.PyString_AsString.restype = ctypes.POINTER(ctypes.c_char)
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from ctypes import *
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from datetime import timedelta as td
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class IEC_STRING(Structure):
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    """
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    Must be changed according to changes in iec_types.h
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    """
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    _fields_ = [("len", c_uint8),
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                ("body", c_char * 126)]
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class IEC_TIME(Structure):
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    """
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    Must be changed according to changes in iec_types.h
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    """
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    _fields_ = [("s", c_long), #tv_sec
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                ("ns", c_long)] #tv_nsec
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def _t(t, u=lambda x:x.value, p=lambda t,x:t(x)): return  (t, u, p)
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def _ttime(): return (IEC_TIME,
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                      lambda x:td(0, x.s, x.ns/1000),
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                      lambda t,x:t(x.days * 24 * 3600 + x.seconds, x.microseconds*1000))
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SameEndianessTypeTranslator = {
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    "BOOL" :       _t(c_uint8,  lambda x:x.value!=0),
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    "STEP" :       _t(c_uint8),
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    "TRANSITION" : _t(c_uint8),
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    "ACTION" :     _t(c_uint8),
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    "SINT" :       _t(c_int8),
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    "USINT" :      _t(c_uint8),
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    "BYTE" :       _t(c_uint8),
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    "STRING" :     (IEC_STRING,
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                      lambda x:x.body[:x.len],
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                      lambda t,x:t(len(x),x)),
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    "INT" :        _t(c_int16),
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    "UINT" :       _t(c_uint16),
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    "WORD" :       _t(c_uint16),
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    "DINT" :       _t(c_int32),
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    "UDINT" :      _t(c_uint32),
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    "DWORD" :      _t(c_uint32),
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    "LINT" :       _t(c_int64),
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    "ULINT" :      _t(c_uint64),
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    "LWORD" :      _t(c_uint64),
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    "REAL" :       _t(c_float),
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    "LREAL" :      _t(c_double),
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    "TIME" :       _ttime(),
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    "TOD" :        _ttime(),
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    "DATE" :       _ttime(),
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    "DT" :         _ttime(),
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    }
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SwapedEndianessTypeTranslator = {
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    #TODO
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    }
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TypeTranslator=SameEndianessTypeTranslator
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# Construct debugger natively supported types
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DebugTypesSize =  dict([(key,sizeof(t)) for key,(t,p,u) in SameEndianessTypeTranslator.iteritems() if t is not None])
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def UnpackDebugBuffer(buff, indexes):
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    res =  []
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    buffoffset = 0
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    buffsize = len(buff)
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    buffptr = cast(ctypes.pythonapi.PyString_AsString(id(buff)),c_void_p).value
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    for iectype in indexes:
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        c_type,unpack_func, pack_func = \
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            TypeTranslator.get(iectype,
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                                    (None,None,None))
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        if c_type is not None and buffoffset < buffsize:
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            cursor = c_void_p( buffptr + buffoffset)
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            value = unpack_func( cast(cursor,
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                         POINTER(c_type)).contents)
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            buffoffset += sizeof(c_type) if iectype != "STRING" else len(value)+1
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            res.append(value)
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        else:
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            break
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    if buffoffset and buffoffset == buffsize:
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        return res
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    return None
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LogLevels = ["CRITICAL","WARNING","INFO","DEBUG"]
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LogLevelsCount = len(LogLevels)
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LogLevelsDict = dict(zip(LogLevels,range(LogLevelsCount)))
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LogLevelsDefault = LogLevelsDict["DEBUG"]
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