LPCtarget/toolchain_makefile.py
author Laurent Bessard
Mon, 01 Oct 2012 19:19:41 +0200
changeset 20 6bfbf83d6c2d
parent 1 4f6d393cb36e
child 53 d92a0c3040a4
permissions -rwxr-xr-x
Fixing CanFestival extension node params XSDs
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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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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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                #wholesrcdata += open(CFile, "r").read()
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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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            beremizcommand = {"src": ' '.join(srcfiles),
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                              "cflags": ' '.join(cflags),
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                              "md5": '"'+self.md5key+'"'
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                             }
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            target = self.CTRInstance.GetTarget().getcontent()["value"]
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            command = target.getCommand().split(' ') +\
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                      [target.getBuildPath()] +\
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                      [arg % beremizcommand for arg in target.getArguments().split(' ')] +\
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                      target.getRule().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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