targets/toolchain_makefile.py
author Edouard Tisserant
Thu, 05 Feb 2015 23:32:31 +0100
changeset 1439 a68cd4253259
parent 1402 49441045b192
child 1511 91538d0c242c
permissions -rwxr-xr-x
Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
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import os, re, operator
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from util.ProcessLogger import ProcessLogger
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import hashlib
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import time
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includes_re =  re.compile('\s*#include\s*["<]([^">]*)[">].*')
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if os.name == 'nt':
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    # on windows, desktop shortcut launches Beremiz.py
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    # with working dir set to mingw/bin.
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    # then we prefix CWD to PATH in order to ensure that
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    # commands invoked from Makefiles will first resolve
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    # to here.
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    os.environ["PATH"] = os.getcwd()+';'+os.environ["PATH"]
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class toolchain_makefile():
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    def __init__(self, CTRInstance):
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        self.CTRInstance = CTRInstance
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        self.md5key = None 
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        self.buildpath = None
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        self.SetBuildPath(self.CTRInstance._getBuildPath())
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    def SetBuildPath(self, buildpath):
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        if self.buildpath != buildpath:
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            self.buildpath = buildpath
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            self.md5key = None
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    def GetBinaryCode(self):
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        return None
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    def _GetMD5FileName(self):
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        return os.path.join(self.buildpath, "lastbuildPLC.md5")
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    def ResetBinaryCodeMD5(self):
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        self.md5key = None
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        try:
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            os.remove(self._GetMD5FileName())
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        except Exception, e:
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            pass
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    def GetBinaryCodeMD5(self):
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        if self.md5key is not None:
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            return self.md5key
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        else:
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            try:
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                return open(self._GetMD5FileName(), "r").read()
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            except IOError, e:
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                return None
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    def concat_deps(self, bn):
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        # read source
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        src = open(os.path.join(self.buildpath, bn),"r").read()
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        # update direct dependencies
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        deps = []
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        for l in src.splitlines():
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            res = includes_re.match(l)
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            if res is not None:
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                depfn = res.groups()[0]
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                if os.path.exists(os.path.join(self.buildpath, depfn)):
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                    #print bn + " depends on "+depfn
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                    deps.append(depfn)
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        # recurse through deps
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        # TODO detect cicular deps.
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        return reduce(operator.concat, map(self.concat_deps, deps), src)
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    def build(self):
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        srcfiles= []
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        cflags = []
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        wholesrcdata = "" 
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        for Location, CFilesAndCFLAGS, DoCalls in self.CTRInstance.LocationCFilesAndCFLAGS:
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            # Get CFiles list to give it to makefile
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            for CFile, CFLAGS in CFilesAndCFLAGS:
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                CFileName = os.path.basename(CFile)
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                wholesrcdata += self.concat_deps(CFileName)
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                srcfiles.append(CFileName)
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                if CFLAGS not in cflags:
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                    cflags.append(CFLAGS)
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        oldmd5 = self.md5key
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        self.md5key = hashlib.md5(wholesrcdata).hexdigest()
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        props = self.CTRInstance.GetProjectProperties()
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        self.md5key += '#'.join([props[key] for key in ['companyName',
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                                                        'projectName',
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                                                        'productName']])
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        self.md5key += '#' #+','.join(map(str,time.localtime()))
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        # Store new PLC filename based on md5 key
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        f = open(self._GetMD5FileName(), "w")
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        f.write(self.md5key)
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        f.close()
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        if oldmd5 != self.md5key :
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            target = self.CTRInstance.GetTarget().getcontent()
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            beremizcommand = {"src": ' '.join(srcfiles),
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                              "cflags": ' '.join(cflags),
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                              "md5": self.md5key,
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                              "buildpath": self.buildpath
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                             }
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            command = [ token % beremizcommand for token in target.getCommand().split(' ')]
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            # Call Makefile to build PLC code and link it with target specific code
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            status, result, err_result = ProcessLogger(self.CTRInstance.logger,
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                                                       command).spin()
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            if status :
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                self.md5key = None
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                self.CTRInstance.logger.write_error(_("C compilation failed.\n"))
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                return False
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            return True
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        else :
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            self.CTRInstance.logger.write(_("Source didn't change, no build.\n"))
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            return True
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