freebsd-to-rtems: Refactor the conversion support to allow multiples build systems.

Split the freebsd-to-rtems.py into separate parts to allow more than
a single build system generator.

.gitignore

@@ -1,3 +1,4 @@
+*.pyc
 *.a
 *.d
 *.o

builder.py

@@ -0,0 +1,421 @@
+#
+#  Copyright (c) 2015 Chris Johns <chrisj@rtems.org>. All rights reserved.
+#
+#  Copyright (c) 2009-2015 embedded brains GmbH.  All rights reserved.
+#
+#   embedded brains GmbH
+#   Dornierstr. 4
+#   82178 Puchheim
+#   Germany
+#   <info@embedded-brains.de>
+#
+#  Copyright (c) 2012 OAR Corporation. All rights reserved.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#  1. Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#  2. Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# FreeBSD: http://svn.freebsd.org/base/releng/8.2/sys (revision 222485)
+
+import shutil
+import os
+import re
+import sys
+import getopt
+import filecmp
+import difflib
+
+#
+# Global controls.
+#
+RTEMS_DIR = "."
+FreeBSD_DIR = "freebsd-org"
+isVerbose = False
+isDryRun = False
+isDiffMode = False
+filesProcessed = 0
+
+# compare and process file only if different
+#  + copy or diff depending on execution mode
+def processIfDifferent(new, old, src):
+
+    global filesProcessed
+    global isVerbose, isDryRun, isEarlyExit
+
+    if not os.path.exists(old) or \
+       filecmp.cmp(new, old, shallow = False) == False:
+        filesProcessed += 1
+        if isDiffMode == False:
+            if isVerbose == True:
+                print "Move " + src + " to " + old
+            if isDryRun == False:
+                shutil.move(new, old)
+        else:
+            if isVerbose == True:
+                print "Diff %s => %s" % (src, new)
+            old_contents = open(old).readlines()
+            new_contents = open(new).readlines()
+            for line in \
+                difflib.unified_diff(old_contents, new_contents,
+                                     fromfile = src, tofile = new, n = 5):
+                sys.stdout.write(line)
+
+# Move target dependent files under a machine directory
+def mapCPUDependentPath(path):
+  return path.replace("include/", "include/machine/")
+
+def fixIncludes(data):
+    data = re.sub('#include <sys/lock.h>', '#include <rtems/bsd/sys/lock.h>', data)
+    data = re.sub('#include <sys/time.h>', '#include <rtems/bsd/sys/time.h>', data)
+    data = re.sub('#include <sys/cpuset.h>', '#include <rtems/bsd/sys/cpuset.h>', data)
+    data = re.sub('#include <sys/errno.h>', '#include <rtems/bsd/sys/errno.h>', data)
+    data = re.sub('#include <sys/param.h>', '#include <rtems/bsd/sys/param.h>', data)
+    data = re.sub('#include <sys/types.h>', '#include <rtems/bsd/sys/types.h>', data)
+    data = re.sub('#include <sys/resource.h>', '#include <rtems/bsd/sys/resource.h>', data)
+    data = re.sub('#include <sys/unistd.h>', '#include <rtems/bsd/sys/unistd.h>', data)
+    data = re.sub('#include <sys/_types.h>', '#include <rtems/bsd/sys/_types.h>', data)
+    return data
+
+# revert fixing the include paths inside a C or .h file
+def revertFixIncludes(data):
+    data = re.sub('#include <rtems/bsd/', '#include <', data)
+    data = re.sub('#include <util.h>', '#include <rtems/bsd/util.h>', data)
+    data = re.sub('#include <bsd.h>', '#include <rtems/bsd/bsd.h>', data)
+    data = re.sub('#include <zerocopy.h>', '#include <rtems/bsd/zerocopy.h>', data)
+    return data
+
+# fix include paths inside a C or .h file
+def fixLocalIncludes(data):
+    data = re.sub('#include "opt_([^"]*)"', '#include <rtems/bsd/local/opt_\\1>', data)
+    data = re.sub('#include "([^"]*)_if.h"', '#include <rtems/bsd/local/\\1_if.h>', data)
+    data = re.sub('#include "miidevs([^"]*)"', '#include <rtems/bsd/local/miidevs\\1>', data)
+    data = re.sub('#include "usbdevs([^"]*)"', '#include <rtems/bsd/local/usbdevs\\1>', data)
+    return data
+
+# revert fixing the include paths inside a C or .h file
+def revertFixLocalIncludes(data):
+    data = re.sub('#include <rtems/bsd/local/([^>]*)>', '#include "\\1"', data)
+    return data
+
+def assertHeaderFile(path):
+    if path[-2] != '.' or path[-1] != 'h':
+        print "*** " + path + " does not end in .h"
+        print "*** Move it to a C source file list"
+        sys.exit(2)
+
+def assertSourceFile(path):
+    if path[-2] != '.' or (path[-1] != 'c' and path[-1] != 'S'):
+        print "*** " + path + " does not end in .c"
+        print "*** Move it to a header file list"
+        sys.exit(2)
+
+class Converter(object):
+    def convert(self, src):
+        return open(src).read()
+
+    def isConvertible(self):
+        return True
+
+class NoConverter(Converter):
+    def convert(self, src):
+        raise
+
+    def isConvertible(self):
+        return False
+
+class EmptyConverter(Converter):
+    def convert(self, src):
+        return '/* EMPTY */\n'
+
+class FromFreeBSDToRTEMSHeaderConverter(Converter):
+    def convert(self, src):
+        data = super(FromFreeBSDToRTEMSHeaderConverter, self).convert(src)
+        data = fixLocalIncludes(data)
+        data = fixIncludes(data)
+        return data
+
+class FromFreeBSDToRTEMSUserSpaceHeaderConverter(Converter):
+    def convert(self, src):
+        data = super(FromFreeBSDToRTEMSUserSpaceHeaderConverter, self).convert(src)
+        data = fixIncludes(data)
+        return data
+
+class FromFreeBSDToRTEMSSourceConverter(Converter):
+    def convert(self, src):
+        data = super(FromFreeBSDToRTEMSSourceConverter, self).convert(src)
+        data = fixLocalIncludes(data)
+        data = fixIncludes(data)
+        data = '#include <machine/rtems-bsd-kernel-space.h>\n\n' + data
+        return data
+
+class FromFreeBSDToRTEMSUserSpaceSourceConverter(Converter):
+    def convert(self, src):
+        data = super(FromFreeBSDToRTEMSUserSpaceSourceConverter, self).convert(src)
+        data = fixIncludes(data)
+        data = '#include <machine/rtems-bsd-user-space.h>\n\n' + data
+        return data
+
+class FromRTEMSToFreeBSDHeaderConverter(Converter):
+    def convert(self, src):
+        data = super(FromRTEMSToFreeBSDHeaderConverter, self).convert(src)
+        data = revertFixLocalIncludes(data)
+        data = revertFixIncludes(data)
+        return data
+
+class FromRTEMSToFreeBSDSourceConverter(Converter):
+    def convert(self, src):
+        data = super(FromRTEMSToFreeBSDSourceConverter, self).convert(src)
+        data = re.sub('#include <machine/rtems-bsd-kernel-space.h>\n\n', '', data)
+        data = re.sub('#include <machine/rtems-bsd-user-space.h>\n\n', '', data)
+        data = revertFixLocalIncludes(data)
+        data = revertFixIncludes(data)
+        return data
+
+class PathComposer(object):
+    def composeFreeBSDPath(self, path):
+        return path
+
+    def composeRTEMSPath(self, path, prefix):
+        path = prefix + path
+        return path
+
+class FreeBSDPathComposer(PathComposer):
+    def composeFreeBSDPath(self, path):
+        return FreeBSD_DIR + '/' + path
+
+    def composeRTEMSPath(self, path, prefix):
+        return prefix + 'freebsd/' + path
+
+class RTEMSPathComposer(PathComposer):
+    def composeFreeBSDPath(self, path):
+        return path
+
+    def composeRTEMSPath(self, path, prefix):
+        path = prefix + 'rtemsbsd/' + path
+        return path
+
+class CPUDependentPathComposer(FreeBSDPathComposer):
+    def composeRTEMSPath(self, path, prefix):
+        path = super(CPUDependentPathComposer, self).composeRTEMSPath(path, prefix)
+        path = mapCPUDependentPath(path)
+        return path
+
+class TargetSourceCPUDependentPathComposer(CPUDependentPathComposer):
+    def __init__(self, targetCPU, sourceCPU):
+        self.targetCPU = targetCPU
+        self.sourceCPU = sourceCPU
+
+    def composeRTEMSPath(self, path, prefix):
+        path = super(TargetSourceCPUDependentPathComposer, self).composeRTEMSPath(path, prefix)
+        path = path.replace(self.sourceCPU, self.targetCPU)
+        return path
+
+class BuildSystemFragmentComposer(object):
+    def compose(self, path):
+        return ''
+
+class File(object):
+    def __init__(self, path, pathComposer,
+                 fromFreeBSDToRTEMSConverter, fromRTEMSToFreeBSDConverter, buildSystemComposer):
+        self.path = path
+        self.pathComposer = pathComposer
+        self.fromFreeBSDToRTEMSConverter = fromFreeBSDToRTEMSConverter
+        self.fromRTEMSToFreeBSDConverter = fromRTEMSToFreeBSDConverter
+        self.buildSystemComposer = buildSystemComposer
+
+    def copy(self, dst, src, converter = None):
+        import tempfile
+        if converter is not None and converter.isConvertible():
+            try:
+                if isDryRun == False:
+                    os.makedirs(os.path.dirname(dst))
+            except OSError:
+                pass
+            data = converter.convert(src)
+            try:
+                out = tempfile.NamedTemporaryFile(delete = False)
+                out.write(data)
+                out.close()
+                processIfDifferent(out.name, dst, src)
+            finally:
+                try:
+                    os.remove(out.name)
+                except:
+                    pass
+
+    def copyFromFreeBSDToRTEMS(self):
+        src = self.pathComposer.composeFreeBSDPath(self.path)
+        dst = self.pathComposer.composeRTEMSPath(self.path, RTEMS_DIR + '/')
+        self.copy(dst, src, self.fromFreeBSDToRTEMSConverter)
+
+    def copyFromRTEMSToFreeBSD(self):
+        src = self.pathComposer.composeRTEMSPath(self.path, RTEMS_DIR + '/')
+        dst = self.pathComposer.composeFreeBSDPath(self.path)
+        self.copy(dst, src, self.fromRTEMSToFreeBSDConverter)
+
+    def getFragment(self):
+        return self.buildSystemComposer.compose(self.pathComposer.composeRTEMSPath(self.path, ''))
+
+# Module - logical group of related files we can perform actions on
+class Module:
+    def __init__(self, name):
+        self.name = name
+        self.conditionalOn = "none"
+        self.files = []
+        self.cpuDependentSourceFiles = {}
+        self.dependencies = []
+
+    def initCPUDependencies(self, cpu):
+        if cpu not in self.cpuDependentSourceFiles:
+            self.cpuDependentSourceFiles[cpu] = []
+
+    def copyFromFreeBSDToRTEMS(self):
+        for f in self.files:
+            f.copyFromFreeBSDToRTEMS()
+        for cpu, files in self.cpuDependentSourceFiles.items():
+            for f in files:
+                f.copyFromFreeBSDToRTEMS()
+
+    def copyFromRTEMSToFreeBSD(self):
+        for f in self.files:
+            f.copyFromRTEMSToFreeBSD()
+        for cpu, files in self.cpuDependentSourceFiles.items():
+            for f in files:
+                f.copyFromRTEMSToFreeBSD()
+
+    def addFiles(self, newFiles, buildSystemComposer = BuildSystemFragmentComposer()):
+        files = []
+        for newFile in newFiles:
+            assertFile(newFile)
+            files += [File(newFile, composers, buildSystemComposer)]
+        return files
+
+    def addFile(self, f):
+        self.files += [f]
+
+    def addFiles(self, newFiles,
+                 pathComposer, fromFreeBSDToRTEMSConverter, fromRTEMSToFreeBSDConverter,
+                 assertFile, buildSystemComposer = BuildSystemFragmentComposer()):
+        files = []
+        for newFile in newFiles:
+            assertFile(newFile)
+            files += [File(newFile, pathComposer, fromFreeBSDToRTEMSConverter,
+                           fromRTEMSToFreeBSDConverter, buildSystemComposer)]
+        return files
+
+    def addKernelSpaceHeaderFiles(self, files):
+        self.files += self.addFiles(files,
+                                    FreeBSDPathComposer(), FromFreeBSDToRTEMSHeaderConverter(),
+                                    FromRTEMSToFreeBSDHeaderConverter(), assertHeaderFile)
+
+    def addUserSpaceHeaderFiles(self, files):
+        self.files += self.addFiles(files,
+                                    FreeBSDPathComposer(), FromFreeBSDToRTEMSUserSpaceHeaderConverter(),
+                                    FromRTEMSToFreeBSDHeaderConverter(), assertHeaderFile)
+
+    def addRTEMSHeaderFiles(self, files):
+        self.files += self.addFiles(files, RTEMSPathComposer(),
+                                    NoConverter(), NoConverter(), assertHeaderFile)
+
+    def addCPUDependentHeaderFiles(self, files):
+        self.files += self.addFiles(files,
+                                    CPUDependentPathComposer(), FromFreeBSDToRTEMSHeaderConverter(),
+                                    FromRTEMSToFreeBSDHeaderConverter(), assertHeaderFile)
+
+    def addTargetSourceCPUDependentHeaderFiles(self, targetCPUs, sourceCPU, files):
+        for cpu in targetCPUs:
+            self.files += self.addFiles(files,
+                                        TargetSourceCPUDependentPathComposer(cpu, sourceCPU),
+                                        FromFreeBSDToRTEMSHeaderConverter(),
+                                        NoConverter(), assertHeaderFile)
+
+    def addSourceFiles(self, files, sourceFileFragmentComposer):
+        self.files += self.addFiles(files,
+                                    PathComposer(), NoConverter(), NoConverter(), assertSourceFile,
+                                    sourceFileFragmentComposer)
+
+    def addKernelSpaceSourceFiles(self, files, sourceFileFragmentComposer):
+        self.files += self.addFiles(files,
+                                    FreeBSDPathComposer(), FromFreeBSDToRTEMSSourceConverter(),
+                                    FromRTEMSToFreeBSDSourceConverter(), assertSourceFile,
+                                    sourceFileFragmentComposer)
+
+    def addUserSpaceSourceFiles(self, files, sourceFileFragmentComposer):
+        self.files += self.addFiles(files,
+                                    FreeBSDPathComposer(),
+                                    FromFreeBSDToRTEMSUserSpaceSourceConverter(),
+                                    FromRTEMSToFreeBSDSourceConverter(), assertSourceFile,
+                                    sourceFileFragmentComposer)
+
+    def addRTEMSSourceFiles(self, files, sourceFileFragmentComposer):
+        self.files += self.addFiles(files,
+                                    RTEMSPathComposer(), NoConverter(), NoConverter(),
+                                    assertSourceFile, sourceFileFragmentComposer)
+
+    def addCPUDependentSourceFiles(self, cpu, files, sourceFileFragmentComposer):
+        self.initCPUDependencies(cpu)
+        self.cpuDependentSourceFiles[cpu] += \
+            self.addFiles(files,
+                          CPUDependentPathComposer(), FromFreeBSDToRTEMSSourceConverter(),
+                          FromRTEMSToFreeBSDSourceConverter(), assertSourceFile,
+                          sourceFileFragmentComposer)
+
+    def addTargetSourceCPUDependentSourceFiles(self, targetCPUs, sourceCPU, files,
+                                               sourceFileFragmentComposer):
+        for cpu in targetCPUs:
+            self.initCPUDependencies(cpu)
+            self.cpuDependentSourceFiles[cpu] += \
+                self.addFiles(files,
+                              TargetSourceCPUDependentPathComposer(cpu, sourceCPU),
+                              FromFreeBSDToRTEMSSourceConverter(), NoConverter(),
+                              assertSourceFile, sourceFileFragmentComposer)
+
+    def addTest(self, testFragementComposer):
+        self.files += [File(testFragementComposer.testName,
+                            PathComposer(), NoConverter(), NoConverter(),
+                            testFragementComposer)]
+
+    def addDependency(self, dep):
+        self.dependencies += [dep]
+
+class ModuleManager:
+    def __init__(self):
+        self.modules = {}
+        self.generator = {}
+        self.setGenerators()
+
+    def __getitem__(self, key):
+        if key not in self.modules:
+            raise KeyError('module %s not found' % (key))
+        return self.modules[key]
+
+    def getModules(self):
+        return sorted(self.modules.keys())
+
+    def addModule(self, module):
+        self.modules[module.name] = module
+
+    def copyFromFreeBSDToRTEMS(self):
+        for m in sorted(self.modules):
+            self.modules[m].copyFromFreeBSDToRTEMS()
+
+    def copyFromRTEMSToFreeBSD(self):
+        for m in sorted(self.modules):
+            self.modules[m].copyFromRTEMSToFreeBSD()

makefile.py

@@ -0,0 +1,316 @@
+#
+#  Copyright (c) 2015 Chris Johns <chrisj@rtems.org>. All rights reserved.
+#
+#  Copyright (c) 2009-2015 embedded brains GmbH.  All rights reserved.
+#
+#   embedded brains GmbH
+#   Dornierstr. 4
+#   82178 Puchheim
+#   Germany
+#   <info@embedded-brains.de>
+#
+#  Copyright (c) 2012 OAR Corporation. All rights reserved.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#  1. Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#  2. Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import tempfile
+
+import builder
+
+class SourceFileFragmentComposer(builder.BuildSystemFragmentComposer):
+
+    def __init__(self, cflags = None):
+        self.cflags = cflags
+
+    def compose(self, path):
+        fragment = 'LIB_C_FILES += ' + path + '\n'
+        if self.cflags != None:
+            fragment = fragment + path[:-1] + 'o: ' + path + '\n' \
+                       + '\t$(CC) $(CPPFLAGS) $(CFLAGS) ' + self.cflags + ' -c $< -o $@\n'
+        return fragment
+
+class TestFragementComposer(builder.BuildSystemFragmentComposer):
+
+    def __init__(self, testName, fileFragments, runTest = True, netTest = False):
+        self.testName = testName
+        self.fileFragments = fileFragments
+        self.runTest = runTest
+        self.netTest = netTest
+
+    def compose(self, path):
+        makefileFragment = ''
+        testPrefix = 'TEST_' + self.testName.upper()
+        testOFiles = testPrefix + '_O_FILES'
+        testDFiles = testPrefix + '_D_FILES'
+        testDir = 'testsuite/' + self.testName
+        testExe = testDir + '/' + self.testName + '.exe'
+        testMap = testDir + '/' + self.testName + '.map'
+        testCollection = 'TESTS'
+        if self.netTest:
+            testCollection = 'NET_' + testCollection
+        makefileFragment += '\n' + testPrefix + ' = ' + testExe + '\n' \
+                           + testOFiles + ' =\n' \
+                           + testDFiles + ' =\n'
+        for fileFragment in self.fileFragments:
+            makefileFragment += testOFiles + ' += ' + testDir + '/' + fileFragment + '.o\n' \
+                               + testDFiles + ' += ' + testDir + '/' + fileFragment + '.d\n'
+            makefileFragment += '$(' + testPrefix + '): $(' + testOFiles + ') $(LIB)\n' \
+                               '\t$(LINK.c) -Wl,-Map,' + testMap + ' $^ -lm -lz -o $@\n' \
+                               + testCollection + ' += $(' + testPrefix + ')\n' \
+                               'O_FILES += $(' + testOFiles + ')\n' \
+                               'D_FILES += $(' + testDFiles + ')\n'
+            if self.runTest:
+                makefileFragment += 'RUN_' + testCollection + ' += $(' + testPrefix + ')\n'
+        return makefileFragment
+
+class KVMSymbolsFragmentComposer(builder.BuildSystemFragmentComposer):
+
+    def compose(self, path):
+        return 'LIB_GEN_FILES += ' + path + '\n' \
+            'LIB_C_FILES += ' + path + '\n' \
+            + path + ': rtemsbsd/rtems/generate_kvm_symbols\n' \
+            '\t./$< > $@\n'
+
+class RPCGENFragmentComposer(builder.BuildSystemFragmentComposer):
+
+    def compose(self, path):
+        headerPath = path[:-2] + '.h'
+        return headerPath + ': ' + path + '\n' \
+            '\t	rm -f $@\n' \
+            '\t	rpcgen -h -o $@ $<\n'
+
+class RouteKeywordsFragmentComposer(builder.BuildSystemFragmentComposer):
+
+    def compose(self, path):
+        headerPath = path + '.h'
+        tmpPath = path + '.tmp'
+        return headerPath + ': ' + path + '\n' \
+            '\tsed -e \'/^#/d\' -e \'/^$$/d\' $< > ' + tmpPath + '\n' \
+            '\tLC_ALL=C tr \'a-z\' \'A-Z\' < ' + tmpPath + ' | paste ' + tmpPath + ' - | \\\n' \
+            '\tawk \'{ if (NF > 1) printf "#define\\tK_%s\\t%d\\n\\t{\\"%s\\", K_%s},\\n", $$2, NR, $$1, $$2 }\' > $@\n' \
+            '\trm -f ' + tmpPath + '\n'
+
+class LexFragmentComposer(builder.BuildSystemFragmentComposer):
+
+    def __init__(self, sym, dep):
+        self.sym = sym
+        self.dep = dep
+
+    def compose(self, path):
+        src = path[:-2] + '.c'
+        dep = path[:path.rfind('/')] + '/' + self.dep
+        return 'LIB_C_FILES += ' + src + '\n' \
+            + src + ': ' + path + ' ' + dep + '\n' \
+            '\t${LEX} -P ' + self.sym + ' -t $< | sed -e \'/YY_BUF_SIZE/s/16384/1024/\' > $@\n'
+
+class YaccFragmentComposer(builder.BuildSystemFragmentComposer):
+
+    def __init__(self, sym, header):
+        self.sym = sym
+        self.header = header
+
+    def compose(self, path):
+        src = path[:-2] + '.c'
+        hdr = path[:path.rfind('/')] + '/' + self.header
+        return 'LIB_C_FILES += ' + src + '\n' \
+            + src + ': ' + path + '\n' \
+            '\tyacc -b ' + self.sym + ' -d -p ' + self.sym + ' $<\n' \
+            '\tsed -e ''/YY_BUF_SIZE/s/16384/1024/'' < ' + self.sym + '.tab.c > $@\n' \
+            '\trm -f ' + self.sym + '.tab.c\n' \
+            '\tmv ' + self.sym + '.tab.h ' + hdr + '\n'
+
+# Module Manager - Collection of Modules
+class ModuleManager(builder.ModuleManager):
+
+    def setGenerators(self):
+        self.generator['convert'] = builder.Converter
+        self.generator['no-convert'] = builder.NoConverter
+
+        self.generator['file'] = builder.File
+
+        self.generator['path'] = builder.PathComposer
+        self.generator['freebsd-path'] = builder.FreeBSDPathComposer
+        self.generator['rtems-path'] = builder.RTEMSPathComposer
+        self.generator['cpu-path'] = builder.CPUDependentPathComposer
+        self.generator['target-src-cpu--path'] = builder.TargetSourceCPUDependentPathComposer
+
+        self.generator['source'] = SourceFileFragmentComposer
+        self.generator['test'] = TestFragementComposer
+        self.generator['kvm-symbols'] = KVMSymbolsFragmentComposer
+        self.generator['rpc-gen'] = RPCGENFragmentComposer
+        self.generator['route-keywords'] = RouteKeywordsFragmentComposer
+        self.generator['lex'] = LexFragmentComposer
+        self.generator['yacc'] = YaccFragmentComposer
+
+    def generate(self):
+        data = 'include config.inc\n' \
+               '\n' \
+               'RTEMS_MAKEFILE_PATH = $(PREFIX)/$(TARGET)/$(BSP)\n' \
+               'include $(RTEMS_MAKEFILE_PATH)/Makefile.inc\n' \
+               'include $(RTEMS_CUSTOM)\n' \
+               'include $(PROJECT_ROOT)/make/leaf.cfg\n' \
+               '\n' \
+               'COMMON_FLAGS += -fno-strict-aliasing\n' \
+               'COMMON_FLAGS += -ffreestanding\n' \
+               'COMMON_FLAGS += -fno-common\n' \
+               'COMMON_FLAGS += -Irtemsbsd/include\n' \
+               'COMMON_FLAGS += -Irtemsbsd/$(RTEMS_CPU)/include\n' \
+               'COMMON_FLAGS += -Ifreebsd/sys\n' \
+               'COMMON_FLAGS += -Ifreebsd/sys/$(RTEMS_CPU)/include\n' \
+               'COMMON_FLAGS += -Ifreebsd/sys/contrib/altq\n' \
+               'COMMON_FLAGS += -Ifreebsd/sys/contrib/pf\n' \
+               'COMMON_FLAGS += -Ifreebsd/include\n' \
+               'COMMON_FLAGS += -Ifreebsd/lib/libc/include\n' \
+               'COMMON_FLAGS += -Ifreebsd/lib/libc/isc/include\n' \
+               'COMMON_FLAGS += -Ifreebsd/lib/libc/resolv\n' \
+               'COMMON_FLAGS += -Ifreebsd/lib/libutil\n' \
+               'COMMON_FLAGS += -Ifreebsd/lib/libkvm\n' \
+               'COMMON_FLAGS += -Ifreebsd/lib/libmemstat\n' \
+               'COMMON_FLAGS += -Ifreebsd/lib/libipsec\n' \
+               'COMMON_FLAGS += -Irtemsbsd/sys\n' \
+               'COMMON_FLAGS += -ImDNSResponder/mDNSCore\n' \
+               'COMMON_FLAGS += -ImDNSResponder/mDNSShared\n' \
+               'COMMON_FLAGS += -ImDNSResponder/mDNSPosix\n' \
+               'COMMON_FLAGS += -Itestsuite/include\n' \
+               'COMMON_FLAGS += -Wall\n' \
+               'COMMON_FLAGS += -Wno-format\n' \
+               'COMMON_FLAGS += -MT $@ -MD -MP -MF $(basename $@).d\n' \
+               'CFLAGS += $(COMMON_FLAGS)\n' \
+               'CFLAGS += -std=gnu11\n' \
+               'CXXFLAGS += $(COMMON_FLAGS)\n' \
+               'CXXFLAGS += -std=gnu++11\n' \
+               'NEED_DUMMY_PIC_IRQ=yes\n' \
+               '\n' \
+               'TEST_NETWORK_CONFIG = testsuite/include/rtems/bsd/test/network-config.h\n' \
+               '\n' \
+               'TESTS =\n' \
+               'RUN_TESTS =\n' \
+               '\n' \
+               'NET_TESTS =\n' \
+               'RUN_NET_TESTS =\n' \
+               '\n' \
+               'O_FILES =\n' \
+               'D_FILES =\n' \
+               '\n' \
+               'LIB = libbsd.a\n' \
+               'LIB_GEN_FILES =\n' \
+               'LIB_C_FILES =\n' \
+               'LIB_CXX_FILES =\n' \
+               'LIB_CXX_FILES += rtemsbsd/rtems/rtems-bsd-cxx.cc\n'
+        for mn in self.getModules():
+            m = self[mn]
+            if m.conditionalOn != "none":
+                data += 'ifneq ($(' + m.conditionalOn + '),yes)\n'
+            for f in m.files:
+                data += f.getFragment()
+            for cpu, files in sorted(m.cpuDependentSourceFiles.items()):
+                data += 'ifeq ($(RTEMS_CPU), ' + cpu + ')\n'
+                for f in files:
+                    data += f.getFragment()
+                if cpu in ("arm", "i386", "lm32", "mips", "powerpc", "sparc", "m68k"):
+                    data += 'NEED_DUMMY_PIC_IRQ=no\n'
+                data += 'endif\n'
+                if m.conditionalOn != "none":
+                    data += 'endif # ' + m.conditionalOn +'\n'
+        data += '\n' \
+                'ifeq ($(NEED_DUMMY_PIC_IRQ),yes)\n' \
+                'CFLAGS += -I rtems-dummy-pic-irq/include\n' \
+                'endif\n' \
+                'LIB_O_FILES = $(LIB_C_FILES:%.c=%.o) $(LIB_CXX_FILES:%.cc=%.o)\n' \
+                'O_FILES += $(LIB_O_FILES)\n' \
+                'D_FILES += $(LIB_C_FILES:%.c=%.d) $(LIB_CXX_FILES:%.cc=%.d)\n' \
+                '\n' \
+                'all: $(LIB) $(TESTS) $(TEST_NETWORK_CONFIG) $(NET_TESTS)\n' \
+                '\n' \
+                '$(LIB): $(LIB_GEN_FILES) $(LIB_O_FILES)\n' \
+                '\trm -f $@\n' \
+                '\t$(AR) rcu $@ $^\n' \
+                '\n' \
+                'run_tests: $(RUN_TESTS)\n' \
+                '\t$(TEST_RUNNER) $^\n' \
+                '\tcheck_endof\n' \
+                '\n' \
+                'run_net_tests: $(RUN_NET_TESTS)\n' \
+                '\t$(TEST_RUNNER) -N -T $(NET_TAP_INTERFACE) $^\n' \
+                '\tcheck_endof\n' \
+                '\n' \
+                '$(TEST_NETWORK_CONFIG): $(TEST_NETWORK_CONFIG).in config.inc\n' \
+                '\tsed -e \'s/@NET_CFG_SELF_IP@/$(NET_CFG_SELF_IP)/\' \\\n' \
+                '\t-e \'s/@NET_CFG_NETMASK@/$(NET_CFG_NETMASK)/\' \\\n' \
+                '\t-e \'s/@NET_CFG_PEER_IP@/$(NET_CFG_PEER_IP)/\' \\\n' \
+                '\t-e \'s/@NET_CFG_GATEWAY_IP@/$(NET_CFG_GATEWAY_IP)/\' \\\n' \
+                '\t< $< > $@\n' \
+                '\n' \
+                'CPU_SED  = sed\n' \
+                'CPU_SED += -e \'/arm/d\'\n' \
+                'CPU_SED += -e \'/i386/d\'\n' \
+                'CPU_SED += -e \'/powerpc/d\'\n' \
+                'CPU_SED += -e \'/mips/d\'\n' \
+                'CPU_SED += -e \'/sparc64/d\'\n' \
+                '\n' \
+                'LIB_DIR = $(INSTALL_BASE)/lib\n' \
+                'INCLUDE_DIR = $(INSTALL_BASE)/lib/include\n' \
+                '\n' \
+                'install: $(LIB)\n' \
+                '\tinstall -d $(LIB_DIR)\n' \
+                '\tinstall -m 644 $(LIB) $(LIB_DIR)\n' \
+                '\tcd rtemsbsd/include ; for i in `find . -type d` ; do \\\n' \
+                '\t  install -d $(INCLUDE_DIR)/$$i ; \\\n' \
+                '\t  install -m 644 $$i/*.h $(INCLUDE_DIR)/$$i ; done\n' \
+                '\tcd freebsd/include ; for i in `find . -type d` ; do \\\n' \
+                '\t  install -d $(INCLUDE_DIR)/$$i ; \\\n' \
+                '\t  install -m 644 $$i/*.h $(INCLUDE_DIR)/$$i ; done\n' \
+                '\tcd freebsd/sys/contrib/altq ; \\\n' \
+                '\t  install -d $(INCLUDE_DIR)/altq ; \\\n' \
+                '\t  install -m 644 altq/*.h $(INCLUDE_DIR)/altq\n' \
+                '\tfor i in bsm cam net net80211 netatalk netinet netinet6 netipsec sys vm ; do \\\n' \
+                '\t  install -d $(INCLUDE_DIR)/$$i ; \\\n' \
+                '\t  install -m 644 freebsd/sys/$$i/*.h $(INCLUDE_DIR)/$$i ; done\n' \
+                '\tcd freebsd/sys/dev/mii ; \\\n' \
+                '\t  install -d $(INCLUDE_DIR)/dev/mii ; \\\n' \
+                '\t  install -m 644 *.h $(INCLUDE_DIR)/dev/mii\n' \
+                '\tinstall -m 644 mDNSResponder/mDNSCore/mDNSDebug.h $(INCLUDE_DIR)\n' \
+                '\tinstall -m 644 mDNSResponder/mDNSCore/mDNSEmbeddedAPI.h $(INCLUDE_DIR)\n' \
+                '\tinstall -m 644 mDNSResponder/mDNSShared/dns_sd.h $(INCLUDE_DIR)\n' \
+                '\tinstall -m 644 mDNSResponder/mDNSPosix/mDNSPosix.h $(INCLUDE_DIR)\n' \
+                '\n' \
+                'clean:\n' \
+                '\trm -f $(LIB_GEN_FILES) $(LIB) $(TESTS) $(O_FILES) $(D_FILES)\n' \
+                '\trm -f libbsd.html\n' \
+                '\n' \
+                '-include $(D_FILES)\n' \
+                '\n' \
+                'doc: libbsd.html\n' \
+                '\n' \
+                'libbsd.html: libbsd.txt\n' \
+                '\tasciidoc -o libbsd.html libbsd.txt\n'
+        try:
+            out = tempfile.NamedTemporaryFile(delete = False)
+            out.write(data)
+            out.close()
+            makefile = builder.RTEMS_DIR + '/Makefile'
+            builder.processIfDifferent(out.name, makefile, "Makefile")
+        finally:
+            try:
+                os.remove(out.name)
+            except:
+                pass