+++ /dev/null
-#!/usr/bin/env python
-##########################################################################
-#
-# Copyright 2008-2012 Jose Fonseca
-# All Rights Reserved.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-#
-##########################################################################/
-
-
-import sys
-import optparse
-import os
-import re
-import subprocess
-
-
-class MatchObject:
-
- def __init__(self):
- self.params = {}
-
-
-class Matcher:
-
- def match(self, value, mo):
- raise NotImplementedError
-
- def _matchSequence(self, refValues, srcValues, mo):
- if not isinstance(srcValues, (list, tuple)):
- return False
-
- if len(refValues) != len(srcValues):
- return False
-
- for refValue, srcValue in zip(refValues, srcValues):
- if not refValue.match(srcValue, mo):
- return False
- return True
-
- def __str__(self):
- raise NotImplementerError
-
- def __repr__(self):
- return str(self)
-
-
-class WildcardMatcher(Matcher):
-
- def __init__(self, name = ''):
- self.name = name
-
- def match(self, value, mo):
- if self.name:
- try:
- refValue = mo.params[self.name]
- except KeyError:
- mo.params[self.name] = value
- else:
- return refValue == value
- return True
-
- def __str__(self):
- return '<' + self.name + '>'
-
-
-class LiteralMatcher(Matcher):
-
- def __init__(self, refValue):
- self.refValue = refValue
-
- def match(self, value, mo):
- return self.refValue == value
-
- def __str__(self):
- return repr(self.refValue)
-
-
-class ApproxMatcher(Matcher):
-
- def __init__(self, refValue, tolerance = 2**-23):
- self.refValue = refValue
- self.tolerance = tolerance
-
- def match(self, value, mo):
- if not isinstance(value, float):
- return
-
- error = abs(self.refValue - value)
- if self.refValue:
- error = error / self.refValue
- return error <= self.tolerance
-
- def __str__(self):
- return repr(self.refValue)
-
-
-class BitmaskMatcher(Matcher):
-
- def __init__(self, refElements):
- self.refElements = refElements
-
- def match(self, value, mo):
- return self._matchSequence(self.refElements, value, mo)
-
- def __str__(self):
- return ' | '.join(map(str, self.refElements))
-
-
-class OffsetMatcher(Matcher):
-
- def __init__(self, refValue, offset):
- self.refValue = refValue
- self.offset = offset
-
- def match(self, value, mo):
- return self.refValue.match(value - self.offset, mo)
-
- def __str__(self):
- return '%s + %i' % (self.refValue, self.offset)
-
-
-class ArrayMatcher(Matcher):
-
- def __init__(self, refElements):
- self.refElements = refElements
-
- def match(self, value, mo):
- return self._matchSequence(self.refElements, value, mo)
-
- def __str__(self):
- return '{' + ', '.join(map(str, self.refElements)) + '}'
-
-
-class StructMatcher(Matcher):
-
- def __init__(self, refMembers):
- self.refMembers = refMembers
-
- def match(self, value, mo):
- if not isinstance(value, dict):
- return False
-
- if len(value) != len(self.refMembers):
- return False
-
- for name, refMember in self.refMembers.iteritems():
- try:
- member = value[name]
- except KeyError:
- return False
- else:
- if not refMember.match(member, mo):
- return False
-
- return True
-
- def __str__(self):
- return '{' + ', '.join(['%s = %s' % refMember for refMember in self.refMembers.iteritems()]) + '}'
-
-
-class CallMatcher(Matcher):
-
- def __init__(self, callNo, functionName, args, ret):
- self.callNo = callNo
- self.functionName = functionName
- self.args = args
- self.ret = ret
-
- def match(self, call, mo):
- callNo, srcFunctionName, srcArgs, srcRet = call
-
- if self.functionName != srcFunctionName:
- return False
-
- refArgs = [value for name, value in self.args]
- srcArgs = [value for name, value in srcArgs]
-
- if not self._matchSequence(refArgs, srcArgs, mo):
- return False
-
- if self.ret is None:
- if srcRet is not None:
- return False
- else:
- if not self.ret.match(srcRet, mo):
- return False
-
- if self.callNo is not None:
- if not self.callNo.match(callNo, mo):
- return False
-
- return True
-
- def __str__(self):
- s = self.functionName
- s += '(' + ', '.join(['%s = %s' % refArg for refArg in self.args]) + ')'
- if self.ret is not None:
- s += ' = ' + str(self.ret)
- return s
-
-
-class TraceMismatch(Exception):
-
- pass
-
-
-class TraceMatcher:
-
- def __init__(self, calls):
- self.calls = calls
-
- def match(self, calls, verbose = False):
- mo = MatchObject()
- srcCalls = iter(calls)
- for refCall in self.calls:
- if verbose:
- print refCall
- skippedSrcCalls = []
- while True:
- try:
- srcCall = srcCalls.next()
- except StopIteration:
- if skippedSrcCalls:
- raise TraceMismatch('missing call `%s` (found `%s`)' % (refCall, skippedSrcCalls[0]))
- else:
- raise TraceMismatch('missing call %s' % refCall)
- if verbose:
- print '\t%s %s%r = %r' % srcCall
- if refCall.match(srcCall, mo):
- break
- else:
- skippedSrcCalls.append(srcCall)
- return mo
-
- def __str__(self):
- return ''.join(['%s\n' % call for call in self.calls])
-
-
-#######################################################################
-
-EOF = -1
-SKIP = -2
-
-
-class ParseError(Exception):
-
- def __init__(self, msg=None, filename=None, line=None, col=None):
- self.msg = msg
- self.filename = filename
- self.line = line
- self.col = col
-
- def __str__(self):
- return ':'.join([str(part) for part in (self.filename, self.line, self.col, self.msg) if part != None])
-
-
-class Scanner:
- """Stateless scanner."""
-
- # should be overriden by derived classes
- tokens = []
- symbols = {}
- literals = {}
- ignorecase = False
-
- def __init__(self):
- flags = re.DOTALL
- if self.ignorecase:
- flags |= re.IGNORECASE
- self.tokens_re = re.compile(
- '|'.join(['(' + regexp + ')' for type, regexp, test_lit in self.tokens]),
- flags
- )
-
- def next(self, buf, pos):
- if pos >= len(buf):
- return EOF, '', pos
- mo = self.tokens_re.match(buf, pos)
- if mo:
- text = mo.group()
- type, regexp, test_lit = self.tokens[mo.lastindex - 1]
- pos = mo.end()
- if test_lit:
- type = self.literals.get(text, type)
- return type, text, pos
- else:
- c = buf[pos]
- return self.symbols.get(c, None), c, pos + 1
-
-
-class Token:
-
- def __init__(self, type, text, line, col):
- self.type = type
- self.text = text
- self.line = line
- self.col = col
-
-
-class Lexer:
-
- # should be overriden by derived classes
- scanner = None
- tabsize = 8
-
- newline_re = re.compile(r'\r\n?|\n')
-
- def __init__(self, buf = None, pos = 0, filename = None, fp = None):
- if fp is not None:
- try:
- fileno = fp.fileno()
- length = os.path.getsize(fp.name)
- import mmap
- except:
- # read whole file into memory
- buf = fp.read()
- pos = 0
- else:
- # map the whole file into memory
- if length:
- # length must not be zero
- buf = mmap.mmap(fileno, length, access = mmap.ACCESS_READ)
- pos = os.lseek(fileno, 0, 1)
- else:
- buf = ''
- pos = 0
-
- if filename is None:
- try:
- filename = fp.name
- except AttributeError:
- filename = None
-
- self.buf = buf
- self.pos = pos
- self.line = 1
- self.col = 1
- self.filename = filename
-
- def next(self):
- while True:
- # save state
- pos = self.pos
- line = self.line
- col = self.col
-
- type, text, endpos = self.scanner.next(self.buf, pos)
- assert pos + len(text) == endpos
- self.consume(text)
- type, text = self.filter(type, text)
- self.pos = endpos
-
- if type == SKIP:
- continue
- elif type is None:
- msg = 'unexpected char '
- if text >= ' ' and text <= '~':
- msg += "'%s'" % text
- else:
- msg += "0x%X" % ord(text)
- raise ParseError(msg, self.filename, line, col)
- else:
- break
- return Token(type = type, text = text, line = line, col = col)
-
- def consume(self, text):
- # update line number
- pos = 0
- for mo in self.newline_re.finditer(text, pos):
- self.line += 1
- self.col = 1
- pos = mo.end()
-
- # update column number
- while True:
- tabpos = text.find('\t', pos)
- if tabpos == -1:
- break
- self.col += tabpos - pos
- self.col = ((self.col - 1)//self.tabsize + 1)*self.tabsize + 1
- pos = tabpos + 1
- self.col += len(text) - pos
-
-
-class Parser:
-
- def __init__(self, lexer):
- self.lexer = lexer
- self.lookahead = self.lexer.next()
-
- def match(self, type):
- return self.lookahead.type == type
-
- def skip(self, type):
- while not self.match(type):
- self.consume()
-
- def error(self):
- raise ParseError(
- msg = 'unexpected token %r' % self.lookahead.text,
- filename = self.lexer.filename,
- line = self.lookahead.line,
- col = self.lookahead.col)
-
- def consume(self, type = None):
- if type is not None and not self.match(type):
- self.error()
- token = self.lookahead
- self.lookahead = self.lexer.next()
- return token
-
-
-#######################################################################
-
-ID, NUMBER, HEXNUM, STRING, WILDCARD, PRAGMA, LPAREN, RPAREN, LCURLY, RCURLY, COMMA, AMP, EQUAL, PLUS, VERT, BLOB = xrange(16)
-
-
-class CallScanner(Scanner):
-
- # token regular expression table
- tokens = [
- # whitespace
- (SKIP, r'[ \t\f\r\n\v]+', False),
-
- # Alphanumeric IDs
- (ID, r'[a-zA-Z_][a-zA-Z0-9_]*(?:::[a-zA-Z_][a-zA-Z0-9_]*)?', True),
-
- # Numeric IDs
- (HEXNUM, r'-?0x[0-9a-fA-F]+', False),
-
- # Numeric IDs
- (NUMBER, r'-?(?:\.[0-9]+|[0-9]+(?:\.[0-9]*)?)(?:[eE][-+][0-9]+)?', False),
-
- # String IDs
- (STRING, r'"[^"\\]*(?:\\.[^"\\]*)*"', False),
-
- # Wildcard
- (WILDCARD, r'<[^>]*>', False),
-
- # Pragma
- (PRAGMA, r'#[^\r\n]*', False),
- ]
-
- # symbol table
- symbols = {
- '(': LPAREN,
- ')': RPAREN,
- '{': LCURLY,
- '}': RCURLY,
- ',': COMMA,
- '&': AMP,
- '=': EQUAL,
- '+': PLUS,
- '|': VERT,
- }
-
- # literal table
- literals = {
- 'blob': BLOB
- }
-
-
-class CallLexer(Lexer):
-
- scanner = CallScanner()
-
- def filter(self, type, text):
- if type == STRING:
- text = text[1:-1]
-
- # line continuations
- text = text.replace('\\\r\n', '')
- text = text.replace('\\\r', '')
- text = text.replace('\\\n', '')
-
- # quotes
- text = text.replace('\\"', '"')
-
- type = ID
-
- return type, text
-
-
-class TraceParser(Parser):
-
- def __init__(self, stream):
- lexer = CallLexer(fp = stream)
- Parser.__init__(self, lexer)
-
- def eof(self):
- return self.match(EOF)
-
- def parse(self):
- while not self.eof():
- self.parse_element()
- return TraceMatcher(self.calls)
-
- def parse_element(self):
- if self.lookahead.type == PRAGMA:
- token = self.consume()
- self.handlePragma(token.text)
- else:
- self.parse_call()
-
- def parse_call(self):
- if self.lookahead.type == NUMBER:
- token = self.consume()
- callNo = self.handleInt(int(token.text))
- elif self.lookahead.type == WILDCARD:
- token = self.consume()
- callNo = self.handleWildcard((token.text[1:-1]))
- else:
- callNo = None
-
- functionName = self.consume(ID).text
-
- args = self.parse_sequence(LPAREN, RPAREN, self.parse_pair)
-
- if self.match(EQUAL):
- self.consume(EQUAL)
- ret = self.parse_value()
- else:
- ret = None
-
- self.handleCall(callNo, functionName, args, ret)
-
- def parse_pair(self):
- '''Parse a `name = value` pair.'''
- name = self.consume(ID).text
- self.consume(EQUAL)
- value = self.parse_value()
- return name, value
-
- def parse_opt_pair(self):
- '''Parse an optional `name = value` pair.'''
- if self.match(ID):
- name = self.consume(ID).text
- if self.match(EQUAL):
- self.consume(EQUAL)
- value = self.parse_value()
- else:
- value = name
- name = None
- else:
- name = None
- value = self.parse_value()
- if name is None:
- return value
- else:
- return name, value
-
- def parse_value(self):
- value = self._parse_value()
- if self.match(VERT):
- flags = [value]
- while self.match(VERT):
- self.consume()
- value = self._parse_value()
- flags.append(value)
- return self.handleBitmask(flags)
- elif self.match(PLUS):
- self.consume()
- if self.match(NUMBER):
- token = self.consume()
- offset = int(token.text)
- elif self.match(HEXNUM):
- token = self.consume()
- offset = int(token.text, 16)
- else:
- assert 0
- return self.handleOffset(value, offset)
- else:
- return value
-
- def _parse_value(self):
- if self.match(AMP):
- self.consume()
- value = [self.parse_value()]
- return self.handleArray(value)
- elif self.match(ID):
- token = self.consume()
- value = token.text
- return self.handleID(value)
- elif self.match(STRING):
- token = self.consume()
- value = token.text
- return self.handleString(value)
- elif self.match(NUMBER):
- token = self.consume()
- if '.' in token.text:
- value = float(token.text)
- return self.handleFloat(value)
- else:
- value = int(token.text)
- return self.handleInt(value)
- elif self.match(HEXNUM):
- token = self.consume()
- value = int(token.text, 16)
- return self.handleInt(value)
- elif self.match(LCURLY):
- value = self.parse_sequence(LCURLY, RCURLY, self.parse_opt_pair)
- if len(value) and isinstance(value[0], tuple):
- value = dict(value)
- return self.handleStruct(value)
- else:
- return self.handleArray(value)
- elif self.match(BLOB):
- token = self.consume()
- self.consume(LPAREN)
- token = self.consume()
- length = int(token.text)
- self.consume(RPAREN)
- return self.handleBlob(length)
- elif self.match(WILDCARD):
- token = self.consume()
- return self.handleWildcard(token.text[1:-1])
- else:
- self.error()
-
- def parse_sequence(self, ltype, rtype, elementParser):
- '''Parse a comma separated list'''
-
- elements = []
-
- self.consume(ltype)
- sep = None
- while not self.match(rtype):
- if sep is None:
- sep = COMMA
- else:
- self.consume(sep)
- element = elementParser()
- elements.append(element)
- self.consume(rtype)
-
- return elements
-
- def handleID(self, value):
- raise NotImplementedError
-
- def handleInt(self, value):
- raise NotImplementedError
-
- def handleFloat(self, value):
- raise NotImplementedError
-
- def handleString(self, value):
- raise NotImplementedError
-
- def handleBitmask(self, value):
- raise NotImplementedError
-
- def handleOffset(self, value, offset):
- raise NotImplementedError
-
- def handleArray(self, value):
- raise NotImplementedError
-
- def handleStruct(self, value):
- raise NotImplementedError
-
- def handleBlob(self, length):
- return self.handleID('blob(%u)' % length)
-
- def handleWildcard(self, name):
- raise NotImplementedError
-
- def handleCall(self, callNo, functionName, args, ret):
- raise NotImplementedError
-
- def handlePragma(self, line):
- raise NotImplementedError
-
-
-class RefTraceParser(TraceParser):
-
- def __init__(self, stream):
- TraceParser.__init__(self, stream)
- self.calls = []
-
- def parse(self):
- TraceParser.parse(self)
- return TraceMatcher(self.calls)
-
- def handleID(self, value):
- return LiteralMatcher(value)
-
- def handleInt(self, value):
- return LiteralMatcher(value)
-
- def handleFloat(self, value):
- return ApproxMatcher(value)
-
- def handleString(self, value):
- return LiteralMatcher(value)
-
- def handleBitmask(self, value):
- return BitmaskMatcher(value)
-
- def handleOffset(self, value, offset):
- return OffsetMatcher(value, offset)
-
- def handleArray(self, value):
- return ArrayMatcher(value)
-
- def handleStruct(self, value):
- return StructMatcher(value)
-
- def handleWildcard(self, name):
- return WildcardMatcher(name)
-
- def handleCall(self, callNo, functionName, args, ret):
- call = CallMatcher(callNo, functionName, args, ret)
- self.calls.append(call)
-
- def handlePragma(self, line):
- pass
-
-
-class SrcTraceParser(TraceParser):
-
- def __init__(self, stream):
- TraceParser.__init__(self, stream)
- self.calls = []
-
- def parse(self):
- TraceParser.parse(self)
- return self.calls
-
- def handleID(self, value):
- return value
-
- def handleInt(self, value):
- return int(value)
-
- def handleFloat(self, value):
- return float(value)
-
- def handleString(self, value):
- return value
-
- def handleBitmask(self, value):
- return value
-
- def handleArray(self, elements):
- return list(elements)
-
- def handleStruct(self, members):
- return dict(members)
-
- def handleCall(self, callNo, functionName, args, ret):
- call = (callNo, functionName, args, ret)
- self.calls.append(call)
-
-
-def main():
- # Parse command line options
- optparser = optparse.OptionParser(
- usage='\n\t%prog [OPTIONS] REF_TXT SRC_TRACE',
- version='%%prog')
- optparser.add_option(
- '--apitrace', metavar='PROGRAM',
- type='string', dest='apitrace', default=os.environ.get('APITRACE', 'apitrace'),
- help='path to apitrace executable')
- optparser.add_option(
- '-v', '--verbose',
- action="store_true",
- dest="verbose", default=True,
- help="verbose output")
- (options, args) = optparser.parse_args(sys.argv[1:])
-
- if len(args) != 2:
- optparser.error('wrong number of arguments')
-
- refFileName, srcFileName = args
-
- refStream = open(refFileName, 'rt')
- refParser = RefTraceParser(refStream)
- refTrace = refParser.parse()
- if options.verbose:
- sys.stdout.write('// Reference\n')
- sys.stdout.write(str(refTrace))
- sys.stdout.write('\n')
-
- if srcFileName.endswith('.trace'):
- cmd = [options.apitrace, 'dump', '--color=never', srcFileName]
- p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
- srcStream = p.stdout
- else:
- srcStream = open(srcFileName, 'rt')
- srcParser = SrcTraceParser(srcStream)
- srcTrace = srcParser.parse()
- if options.verbose:
- sys.stdout.write('// Source\n')
- sys.stdout.write(''.join(['%s %s%r = %r\n' % call for call in srcTrace]))
- sys.stdout.write('\n')
-
- if options.verbose:
- sys.stdout.write('// Matching\n')
- mo = refTrace.match(srcTrace, options.verbose)
- if options.verbose:
- sys.stdout.write('\n')
-
- if options.verbose:
- sys.stdout.write('// Parameters\n')
- paramNames = mo.params.keys()
- paramNames.sort()
- for paramName in paramNames:
- print '%s = %r' % (paramName, mo.params[paramName])
-
-
-if __name__ == '__main__':
- main()
projects / apitrace-tests / blobdiff