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208 lines
7.1 KiB
208 lines
7.1 KiB
4 months ago
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#
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# Copyright 2016 - The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import argparse
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import os
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import os.path
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import sys
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import re
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import fileinput
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import pprint
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AR = 'ar'
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CC = 'gcc'
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class MakeParser(object):
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'''Parses the output of make --dry-run.
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Attributes:
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ltp_root: string, LTP root directory
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ar_parser: archive (ar) command argument parser
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cc_parser: gcc command argument parser
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result: list of string, result string buffer
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dir_stack: list of string, directory stack for parsing make commands
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'''
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def __init__(self, ltp_root):
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self.ltp_root = ltp_root
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ar_parser = argparse.ArgumentParser()
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ar_parser.add_argument('-r', dest='r', action='store_true')
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ar_parser.add_argument('-c', dest='c', action='store')
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self.ar_parser = ar_parser
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cc_parser = argparse.ArgumentParser()
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cc_parser.add_argument('-D', dest='defines', action='append')
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cc_parser.add_argument('-I', dest='includes', action='append')
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cc_parser.add_argument('-l', dest='libraries', action='append')
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cc_parser.add_argument('-c', dest='compile', action='store_true')
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cc_parser.add_argument('-o', dest='target', action='store')
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self.cc_parser = cc_parser
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self.result = []
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self.dir_stack = []
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def GetRelativePath(self, path):
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'''Get relative path toward LTP directory.
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Args:
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path: string, a path to convert to relative path
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'''
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if path[0] == '/':
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path = os.path.realpath(path)
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else:
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path = os.path.realpath(self.ltp_root + os.sep + self.dir_stack[-1]
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+ os.sep + path)
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return os.path.realpath(path).replace(self.ltp_root + os.sep, '')
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def GetRelativePathForExtensions(self, paths, extensions):
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'''Get relative path toward LTP directory of paths with given extension.
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Args:
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paths: list of string, paths to convert to relative path
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extensions: list of string, extension include filter
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'''
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return [self.GetRelativePath(i) for i in paths if i[-1] in extensions]
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def ParseAr(self, line):
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'''Parse a archive command line.
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Args:
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line: string, a line of ar command to parse
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'''
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args, unparsed = self.ar_parser.parse_known_args(line.split()[1:])
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sources = self.GetRelativePathForExtensions(unparsed, ['o'])
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# Support 'ar' command line with or without hyphens (-)
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# e.g.:
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# 1. ar rcs libfoo.a foo1.o foo2.o
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# 2. ar -rc "libfoo.a" foo1.o foo2.o; ranlib "libfoo.a"
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target = None
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if not args.c and not args.r:
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for path in unparsed:
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if path.endswith('.a'):
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target = self.GetRelativePath(path)
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break
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else:
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target = self.GetRelativePath(args.c.replace('"', ""))
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assert len(sources) > 0
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assert target != None
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self.result.append("ar['%s'] = %s" % (target, sources))
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def ParseCc(self, line):
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'''Parse a gcc command line.
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Args:
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line: string, a line of gcc command to parse
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'''
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args, unparsed = self.cc_parser.parse_known_args(line.split()[1:])
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sources = self.GetRelativePathForExtensions(unparsed, ['c', 'o'])
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includes = [self.GetRelativePath(i)
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for i in args.includes] if args.includes else []
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flags = []
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defines = args.defines if args.defines else []
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target = self.GetRelativePath(args.target)
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if args.defines:
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for define in args.defines:
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flags.append('-D%s' % define)
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flags.extend(i for i in unparsed if i.startswith('-Wno'))
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assert len(sources) > 0
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if args.compile:
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self.result.append("cc_compile['%s'] = %s" % (target, sources))
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else:
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libraries = args.libraries if args.libraries else []
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if sources[0].endswith('.o'):
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self.result.append("cc_link['%s'] = %s" % (target, sources))
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else:
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self.result.append("cc_compilelink['%s'] = %s" %
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(target, sources))
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self.result.append("cc_libraries['%s'] = %s" % (target, libraries))
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self.result.append("cc_flags['%s'] = %s" % (target, flags))
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self.result.append("cc_includes['%s'] = %s" % (target, includes))
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def ParseFile(self, input_path):
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'''Parses the output of make --dry-run.
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Args:
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input_text: string, output of make --dry-run
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Returns:
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string, generated directives in the form
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ar['target.a'] = [ 'srcfile1.o, 'srcfile2.o', ... ]
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cc_link['target'] = [ 'srcfile1.o', 'srcfile2.o', ... ]
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cc_compile['target.o'] = [ 'srcfile1.c' ]
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cc_compilelink['target'] = [ 'srcfile1.c' ]
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along with optional flags for the above directives in the form
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cc_flags['target'] = [ '-flag1', '-flag2', ...]
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cc_includes['target'] = [ 'includepath1', 'includepath2', ...]
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cc_libraries['target'] = [ 'library1', 'library2', ...]
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'''
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self.result = []
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self.dir_stack = []
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entering_directory = re.compile(r"make.*: Entering directory [`,'](.*)'")
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leaving_directory = re.compile(r"make.*: Leaving directory [`,'](.*)'")
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with open(input_path, 'r') as f:
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for line in f:
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line = line.strip()
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m = entering_directory.match(line)
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if m:
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self.dir_stack.append(self.GetRelativePath(m.group(1)))
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continue
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m = leaving_directory.match(line)
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if m:
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self.dir_stack.pop()
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elif line.startswith(AR):
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self.ParseAr(line)
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elif line.startswith(CC):
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self.ParseCc(line)
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return self.result
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def main():
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arg_parser = argparse.ArgumentParser(
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description='Parse the LTP make --dry-run output into a list')
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arg_parser.add_argument(
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'--ltp-root',
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dest='ltp_root',
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required=True,
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help='LTP Root dir')
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arg_parser.add_argument(
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'--dry-run-file',
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dest='input_path',
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required=True,
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help='Path to LTP make --dry-run output file')
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args = arg_parser.parse_args()
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make_parser = MakeParser(args.ltp_root)
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result = make_parser.ParseFile(args.input_path)
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print pprint.pprint(result)
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if __name__ == '__main__':
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main()
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