1

#!/usr/bin/env python

     2

# -*- coding: utf-8 -*-

     3

     4

# This file is part of Beremiz, a Integrated Development Environment for

     5

# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

     6

#

     7

# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

     8

# Copyright (C) 2017: Paul Beltyukov

     9

#

    10

# See COPYING file for copyrights details.

    11

#

    12

# This program is free software; you can redistribute it and/or

    13

# modify it under the terms of the GNU General Public License

    14

# as published by the Free Software Foundation; either version 2

    15

# of the License, or (at your option) any later version.

    16

#

    17

# This program is distributed in the hope that it will be useful,

    18

# but WITHOUT ANY WARRANTY; without even the implied warranty of

    19

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    20

# GNU General Public License for more details.

    21

#

    22

# You should have received a copy of the GNU General Public License

    23

# along with this program; if not, write to the Free Software

    24

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    25

    29

from util.ProcessLogger import ProcessLogger

    30

import hashlib

    31

    32

includes_re =  re.compile('\s*#include\s*["<]([^">]*)[">].*')

    33

    34

class toolchain_gcc():

    35

    """

    36

    This abstract class contains GCC specific code.

    37

    It cannot be used as this and should be inherited in a target specific

    38

    class such as target_linux or target_win32

    39

    """

    40

    def __init__(self, CTRInstance):

    41

        self.CTRInstance = CTRInstance

    42

        self.buildpath = None

    43

        self.SetBuildPath(self.CTRInstance._getBuildPath())

    44

    45

    def getBuilderCFLAGS(self):

    46

        """

    47

        Returns list of builder specific CFLAGS

    48

        """

    49

        return [self.CTRInstance.GetTarget().getcontent().getCFLAGS()]

    50

    51

    def getBuilderLDFLAGS(self):

    52

        """

    53

        Returns list of builder specific LDFLAGS

    54

        """

    55

        return self.CTRInstance.LDFLAGS + \

    56

               [self.CTRInstance.GetTarget().getcontent().getLDFLAGS()]

    57

    58

    def getCompiler(self):

    59

        """

    60

        Returns compiler

    61

        """

    62

        return self.CTRInstance.GetTarget().getcontent().getCompiler()

    63

    64

    def getLinker(self):

    65

        """

    66

        Returns linker

    67

        """

    68

        return self.CTRInstance.GetTarget().getcontent().getLinker()

    69

    70

    def GetBinaryCode(self):

    71

        try:

    72

            return open(self.exe_path, "rb").read()

    73

        except Exception, e:

    74

            return None

    75

    76

    def _GetMD5FileName(self):

    77

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

    78

    79

    def ResetBinaryCodeMD5(self):

    80

        self.md5key = None

    81

        try:

    82

            os.remove(self._GetMD5FileName())

    83

        except Exception, e:

    84

            pass

    85

    86

    def GetBinaryCodeMD5(self):

    87

        if self.md5key is not None:

    88

            return self.md5key

    89

        else:

    90

            try:

    91

                return open(self._GetMD5FileName(), "r").read()

    92

            except Exception, e:

    93

                return None

    94

    95

    def SetBuildPath(self, buildpath):

    96

        if self.buildpath != buildpath:

    97

            self.buildpath = buildpath

    98

            self.exe = self.CTRInstance.GetProjectName() + self.extension

    99

            self.exe_path = os.path.join(self.buildpath, self.exe)

   100

            self.md5key = None

   101

            self.srcmd5 = {}

   102

   103

    def append_cfile_deps(self, src, deps):

   104

        for l in src.splitlines():

   105

            res = includes_re.match(l)

   106

            if res is not None:

   107

                depfn = res.groups()[0]

   108

                if os.path.exists(os.path.join(self.buildpath, depfn)):

   109

                    deps.append(depfn)

   110

   111

    def concat_deps(self, bn):

   112

        # read source

   113

        src = open(os.path.join(self.buildpath, bn),"r").read()

   114

        # update direct dependencies

   115

        deps = []

   116

        self.append_cfile_deps(src, deps)

   117

        # recurse through deps

   118

        # TODO detect cicular deps.

   119

        return reduce(operator.concat, map(self.concat_deps, deps), src)

   120

   121

    def check_and_update_hash_and_deps(self, bn):

   122

        # Get latest computed hash and deps

   123

        oldhash, deps = self.srcmd5.get(bn,(None,[]))

   124

        # read source

   125

        src = open(os.path.join(self.buildpath, bn)).read()

   126

        # compute new hash

   127

        newhash = hashlib.md5(src).hexdigest()

   128

        # compare

   129

        match = (oldhash == newhash)

   130

        if not match:

   131

            # file have changed

   132

            # update direct dependencies

   133

            deps = []

   134

            self.append_cfile_deps(src, deps)

   135

            # store that hashand deps

   136

            self.srcmd5[bn] = (newhash, deps)

   137

        # recurse through deps

   138

        # TODO detect cicular deps.

   139

        return reduce(operator.and_, map(self.check_and_update_hash_and_deps, deps), match)

   140

   141

    def calc_source_md5(self):

   142

        wholesrcdata = ""

   143

        for Location, CFilesAndCFLAGS, DoCalls in self.CTRInstance.LocationCFilesAndCFLAGS:

   144

            # Get CFiles list to give it to makefile

   145

            for CFile, CFLAGS in CFilesAndCFLAGS:

   146

                CFileName = os.path.basename(CFile)

   147

                wholesrcdata += self.concat_deps(CFileName)

   148

        return hashlib.md5(wholesrcdata).hexdigest()

   149

   150

    def calc_md5(self):

   151

        return hashlib.md5(self.GetBinaryCode()).hexdigest()

   152

   153

    def build(self):

   154

        # Retrieve compiler and linker

   155

        self.compiler = self.getCompiler()

   156

        self.linker = self.getLinker()

   157

   158

        Builder_CFLAGS = ' '.join(self.getBuilderCFLAGS())

   159

   160

        ######### GENERATE OBJECT FILES ########################################

   161

        obns = []

   162

        objs = []

   163

        relink = self.GetBinaryCode() is None

   164

        for Location, CFilesAndCFLAGS, DoCalls in self.CTRInstance.LocationCFilesAndCFLAGS:

   165

            if CFilesAndCFLAGS:

   166

                if Location :

   167

                    self.CTRInstance.logger.write(".".join(map(str,Location))+" :\n")

   168

                else:

   169

                    self.CTRInstance.logger.write(_("PLC :\n"))

   170

   171

            for CFile, CFLAGS in CFilesAndCFLAGS:

   172

                if CFile.endswith(".c"):

   173

                    bn = os.path.basename(CFile)

   174

                    obn = os.path.splitext(bn)[0]+".o"

   175

                    objectfilename = os.path.splitext(CFile)[0]+".o"

   176

   177

                    match = self.check_and_update_hash_and_deps(bn)

   178

   179

                    if match:

   180

                        self.CTRInstance.logger.write("   [pass]  "+bn+" -> "+obn+"\n")

   181

                    else:

   182

                        relink = True

   183

   184

                        self.CTRInstance.logger.write("   [CC]  "+bn+" -> "+obn+"\n")

   185

   186

                        status, result, err_result = ProcessLogger(

   187

                               self.CTRInstance.logger,

   188

                               "\"%s\" -c \"%s\" -o \"%s\" %s %s"%

   189

                                   (self.compiler, CFile, objectfilename, Builder_CFLAGS, CFLAGS)

   190

                               ).spin()

   191

   192

                        if status :

   193

                            self.srcmd5.pop(bn)

   194

                            self.CTRInstance.logger.write_error(_("C compilation of %s failed.\n")%bn)

   195

                            return False

   196

                    obns.append(obn)

   197

                    objs.append(objectfilename)

   198

                elif CFile.endswith(".o"):

   199

                    obns.append(os.path.basename(CFile))

   200

                    objs.append(CFile)

   201

   202

        ######### GENERATE OUTPUT FILE ########################################

   203

        # Link all the object files into one binary file

   204

        self.CTRInstance.logger.write(_("Linking :\n"))

   205

        if relink:

   206

            objstring = []

   207

   208

            # Generate list .o files

   209

            listobjstring = '"' + '"  "'.join(objs) + '"'

   210

   211

            ALLldflags = ' '.join(self.getBuilderLDFLAGS())

   212

   213

            self.CTRInstance.logger.write("   [CC]  " + ' '.join(obns)+" -> " + self.exe + "\n")

   214

   215

            status, result, err_result = ProcessLogger(

   216

                   self.CTRInstance.logger,

   217

                   "\"%s\" %s -o \"%s\" %s"%

   218

                       (self.linker,

   219

                        listobjstring,

   220

                        self.exe_path,

   221

                        ALLldflags)

   222

                   ).spin()

   223

   224

            if status :

   225

                return False

   226

   227

        else:

   228

            self.CTRInstance.logger.write("   [pass]  " + ' '.join(obns)+" -> " + self.exe + "\n")

   229

   230

        # Calculate md5 key and get data for the new created PLC

   231

        self.md5key = self.calc_md5()

   232

   233

        # Store new PLC filename based on md5 key

   234

        f = open(self._GetMD5FileName(), "w")

   235

        f.write(self.md5key)

   236

        f.close()

   237

   238

        return True

   239