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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2052 6f19259b-4bc3-4df7-8a09-765794883524
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bbahnsen
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#!/usr/bin/env python
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"""Calculate the dependencies a given module has by looking through the source
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code to see what guids and functions are referenced to see which Packages and
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Library Classes need to be referenced. """
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import os, sys, re, getopt, string, glob, xml.dom.minidom, pprint
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from XmlRoutines import *
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# Map each function name back to the lib class that declares it.
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function_table = {}
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# Map each guid name to a package name.
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cname_table = {}
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def inWorkspace(rel_path):
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"""Treat the given path as relative to the workspace."""
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# Make sure the user has set the workspace variable:
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try:
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return os.path.join(os.environ["WORKSPACE"], rel_path )
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except:
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print "Oops! You must set the WORKSPACE environment variable to run this script."
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sys.exit()
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def getIdentifiers(infiles):
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"""Build a set of all the identifiers in this file."""
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# Start with an empty set.
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ids = set()
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for infile in infiles:
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# Open the file
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f = open(infile)
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# Create some lexical categories that we will use to filter out
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strings=re.compile('L?"[^"]*"')
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chars=re.compile("'[^']*'")
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hex=re.compile("0[Xx][0-9a-fA-F]*")
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keywords = re.compile('for|do|while|if|else|break|int|unsigned|switch|volatile|goto|case|char|long|struct|return|extern')
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common = re.compile('VOID|UINTN|UINT32|UINT8|UINT64')
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# Compile a Regular expression to grab all the identifers from the input.
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identifier = re.compile('[_a-zA-Z][0-9_a-zA-Z]{3,}')
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for line in f.readlines():
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# Filter some lexical categories out.
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# for filter in [strings, chars, hex, keywords, common]:
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for filter in [strings, chars, hex]:
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line = re.sub(filter, '', line)
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# Add all the identifiers that we found on this line.
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ids = ids.union(set(identifier.findall(line)))
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# Close the file
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f.close()
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# Return the set of identifiers.
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return ids
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def search_classes(ids):
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""" Search the set of classes for functions."""
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# Start with an empty set.
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classes = set()
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for id in ids:
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try:
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# If it is not a "hit" in the table add it to the set.
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classes.add(function_table[id])
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except:
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# If it is not a "hit" in the table, ignore it.
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pass
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return classes
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def search_cnames(ids):
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"""Search all the Packages to see if this code uses a Guid from one of them.
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Return a set of matching packages."""
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packages = set()
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for id in ids:
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try:
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# If it is not a "hit" in the table add it to the set.
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packages.add(cname_table[id])
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except:
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# If it is not a "hit" in the table, ignore it.
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pass
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return packages
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def getSpds():
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"""Open the database and get all the spd files out."""
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# Open the database
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database = xml.dom.minidom.parse(inWorkspace("Tools/Conf/FrameworkDatabase.db"))
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# Get a list of all the packages
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for filename in XmlList(database, "/FrameworkDatabase/PackageList/Filename"):
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spdFile = XmlElementData(filename)
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# Now open the spd file and build the database of guids.
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getCNames(inWorkspace(spdFile))
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getLibClasses(inWorkspace(spdFile))
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def getCNames(spdFile):
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"""Extract all the C_Names from an spd file."""
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# Begin to parse the XML of the .spd
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spd = xml.dom.minidom.parse(spdFile)
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# Get the name of the package
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packageName = XmlElement(spd, "PackageSurfaceArea/SpdHeader/PackageName")
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# Find the C_Name
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for cname in XmlList(spd, "/PackageSurfaceArea/GuidDeclarations/Entry/C_Name") + \
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XmlList(spd, "/PackageSurfaceArea/PcdDeclarations/PcdEntry/C_Name") + \
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XmlList(spd, "/PackageSurfaceArea/PpiDeclarations/Entry/C_Name") + \
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XmlList(spd, "/PackageSurfaceArea/ProtocolDeclarations/Entry/C_Name"):
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# Get the text of the <C_Name> tag.
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cname_text = XmlElementData(cname)
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# Map the <C_Name> to the <PackageName>. We will use this to lookup every
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# identifier in the Input Code.
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cname_table[cname_text] = packageName
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return
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def getLibClasses(spdFile):
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"""Extract all the Lib Classes from an spd file."""
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# Begin to parse the XML of the .spd
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spd = xml.dom.minidom.parse(spdFile)
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# Get the guid of the package
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packageGuid = XmlElement(spd, "/PackageSurfaceArea/SpdHeader/GuidValue")
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for libClass in XmlList(spd, "/PackageSurfaceArea/LibraryClassDeclarations/LibraryClass"):
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className = XmlAttribute(libClass, "Name")
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headerfile = XmlElementData(libClass.getElementsByTagName("IncludeHeader")[0])
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packageRoot=os.path.dirname(spdFile)
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headerfile = os.path.join(packageRoot, headerfile)
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f = open(headerfile)
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# This pattern can pick out function names if the EFI coding
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# standard is followed. We could also use dumpbin on library
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# instances to get a list of symbols.
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functionPattern = re.compile("([_a-zA-Z][_a-zA-Z0-9]*) *\( *");
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for line in f.readlines():
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m = functionPattern.match(line)
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if m:
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functionName = m.group(1)
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# Map it!
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function_table[functionName] = (className, packageGuid)
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f.close()
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def guid(strVal):
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"""Make a guid number out of a guid hex string."""
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return long(strVal.replace('-',''), 16)
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# This acts like the main() function for the script, unless it is 'import'ed into another
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# script.
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if __name__ == '__main__':
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# Create a pretty printer for dumping data structures in a readable form.
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pp = pprint.PrettyPrinter(indent=2)
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# Process the command line args.
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optlist, args = getopt.getopt(sys.argv[1:], 'h', [ 'example-long-arg=', 'testing'])
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"""You should pass a file name as a paramter. It should be preprocessed text
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of all the .c and .h files in your module, which is cat'ed together into one
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large file."""
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# Scrape out all the things that look like identifiers.
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ids = getIdentifiers(args)
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# Read in the spds from the workspace to find the Guids.
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getSpds()
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# Debug stuff.
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print pp.pprint(function_table)
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print pp.pprint(cname_table)
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print "Classes = ", pp.pprint(list(search_classes(ids)))
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print "C_Names = ", pp.pprint(list(search_cnames(ids)))
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