def fetchSome(self):
firstMeetFuncInfo=None
funcInfoStr=''
funcInfo = None
ignore=False
blockOfNormalLines=[]
i=self.i-1
#=======================================================================
# print "========"
# for line in self.lines:
# print line
# print "========"
#=======================================================================
if abs(i)>len(self.lines):
print "OH"
while abs(i)<=len(self.lines):
line=self.lines[i]
if self.should_ignore_and_ingore_following(line):
ignore=True
#===========================================================
# rfx_free (ptr=0x81c3900) at mem.c:10
# 10 {
# 11 if(!ptr)
# 13 free(ptr);
# __GI___libc_free (mem=0x81c3900) at malloc.c:2912
# 2912 malloc.c: No such file or directory.
# 2917 in malloc.c
# ...
# 2946 in malloc.c
# _int_free (av=0xb7fa7420 <main_arena>, p=0x81c38f8, have_lock=0) at malloc.c:3814
# 3814 in malloc.c
# ...
# 3827 in malloc.c
# rfx_free (ptr=0x81c3900) at mem.c:14 <---------this line should also be removed
# 14 }
#===========================================================
i-=1
continue
#if self.hexHeadPattern.match(line):
#return True
if ignore:
#if headInfoPattern.match(line):
if ('a'<=line[0] and line[0]<='z') or ('A'<=line[0] and line[0]<'Z') or line[0]=='_':
if not self.singleStepPattern.match(line):
ignore=False
if '0x'==line[0:2]:#hex head line (optimization)
if self.singleStepPattern.match(self.lines[i+1]):
ignore=False
i-=1
continue
if re.search(r"^[0-9][1-9]*$",line.strip()):#null line
i-=1
continue
if self.isNormalLine(line):#normal line
blockOfNormalLines.append(line)
#LOG INFO
print "find normal line:",line
if "785" in line:
print "HEY!"
print self.lines[0]
else:#func info line
#if headInfoPattern.match(line):
if ('a'<=line[0] and line[0]<='z') or ('A'<=line[0] and line[0]<'Z') or line[0]=='_':
if i-1<len(self.lines):#look ahead
if abs(i)!=len(self.lines) and self.should_ignore_and_ingore_following(self.lines[i-1]):
#===========================================================
# 3827 in malloc.c
# rfx_free (ptr=0x81c3900) at mem.c:14 <---------this line should also be removed
# 14 }
#===========================================================
ignore=True
i-=1
continue
else:
ignore=False
funcInfoStr=line.strip()+funcInfoStr
print funcInfoStr
funcInfo=FunctionCallInfo(funcInfoStr)
self.l[0:0]=[LineOfCode(aline,funcInfo) for aline in blockOfNormalLines[::-1]]
self.l.insert(0, funcInfo)
if abs(i)==len(self.lines):
break
blockOfNormalLines=[]
if firstMeetFuncInfo is None or funcInfo.get_func_name()==firstMeetFuncInfo.get_func_name():
if self.isNormalLine(self.lines[i-1]):
callsite=LineOfCode(self.lines[i-1], None)
print callsite
funcname=funcInfo.get_func_name().split("::")[-1]
if self.isObviousCallSite(funcname, callsite.codestr):
#===============================================================================
# positive example
#===============================================================================
# 515 if (jobs & FEDTJ_CALLBACK)
# 516 callback(self, buf, advance, num, fid, fontsize, x, y, &color);<--------------callsite
# textcallback (self=0xbfffe6a8, glyphs=0xbfffde40, advance=0xbfffe240, nr=15, fontid=5, fontsize=960, startx=0, starty=1053, color=0xbfffde14) at swfstrings.c:115
# 115 SWFFONT*font = 0;
#===============================================================================
# negative example
#===============================================================================
# 43 return mFirst = mLast = new ListItem<T>( data, NULL, user_data );<--------------not callsite
# SWF::Header::parse (this=0x83c7ab0, r=0x83c7a98, end=32780, ctx=0xbfffe724)
# at gSWFParser.cpp:423
# 423 if( r->getPosition() < myend || (r->getPosition()==myend && r->getBits() ))
#===============================================================================
break
else:
filename=self.fetch_callsite_filename(i-1)
if self.isMacroCall(callsite,filename,line):
break
if firstMeetFuncInfo is None:
firstMeetFuncInfo=funcInfo
elif 'main' in line:
funcInfoStr=line.strip()+funcInfoStr
funcInfo=FunctionCallInfo(funcInfoStr)
ns=[LineOfCode(aline,funcInfo) for aline in blockOfNormalLines[::-1]]
#ns = self.fixBlock(ns)
self.l[0:0]=ns
self.l.insert(0, funcInfo)
blockOfNormalLines=[]
else:
print 1/0#ERROR IMPOSSIBLE
funcInfoStr=''
#LOG INFO
print "find head info line:",line
else:
#Tail function call stack info
funcInfoStr=line.strip()+funcInfoStr
#LOG INFO
print "find tail info line:",line
if "_ctx=_ctx@entry=0xbfffe724, filesize=filesize@entry=505) at SWFFile.cpp:34" in line:
print "HEY!"
i-=1
self.i=i
return self.l
def parse(self,log_file_path='../gdb.txt'):
now0 = datetime.datetime.now()
logFile=file(log_file_path, 'r')
lines = logFile.readlines()
normalLinePattern = re.compile(r'^[0-9]+\s+.*\n')
headInfoPattern = re.compile(r'^[A-Za-z_][A-Za-z0-9_]+.*\n')
nullLinePattern = re.compile(r'^\s*\n')
valueReturnLinePattern=re.compile(r'^(Value returned is |Run till exit from ).*')
no_such_file_or_directory=r'No such file or directory.'
hexHeadPattern=re.compile(r'^0x[0-9a-f]+ in .*$')
#singleStepPattern=re.compile(r'^Single stepping until exit from function .*$')
nullLineNum = 0
l = []
isFuncInfo=True
funcInfoStr=''
funcInfo = None
#errorInfo=[]
meetBreakPoint = True
ignore=False
ignoreNext=False
last_ignore=False
blockOfNormalLines=[]
for line in lines:
if line[0]=='V' or line[0]=='R':
if line[0:3]=='Val' or line[0:3]=='Run':
if valueReturnLinePattern.match(line):
ignore=False
continue
if ignore:
#if headInfoPattern.match(line):
if ('a'<=line[0] and line[0]<='z') or ('A'<=line[0] and line[0]<'Z') or line[0]=='_':
ignore=False
last_ignore=True #the this line should also be removed as
#===========================================================
# rfx_free (ptr=0x81c3900) at mem.c:10
# 10 {
# 11 if(!ptr)
# 13 free(ptr);
# __GI___libc_free (mem=0x81c3900) at malloc.c:2912
# 2912 malloc.c: No such file or directory.
# 2917 in malloc.c
# ...
# 2946 in malloc.c
# _int_free (av=0xb7fa7420 <main_arena>, p=0x81c38f8, have_lock=0) at malloc.c:3814
# 3814 in malloc.c
# ...
# 3827 in malloc.c
# rfx_free (ptr=0x81c3900) at mem.c:14 <---------this line should also be removed
# 14 }
#===========================================================
else:
continue
if ignoreNext:
#if normalLinePattern.match(line):
if re.search(r'[1-9][0-9]',line[0:2]) or re.search(r'[1-9]\s',line[0:2]) :#normal line
ignoreNext=False
else:
continue
#if hexHeadPattern.match(line):
if '0x'==line[0:2]:#hex head line
ignoreNext=True
continue
#if nullLinePattern.match(line):
if line.strip()=='':#null line
nullLineNum+=1
elif nullLineNum == 1:
#trace content
#if normalLinePattern.match(line):
if re.search(r'[1-9][0-9]',line[0:2]) or re.search(r'[1-9]\s',line[0:2]) :#normal line
if isFuncInfo:
isFuncInfo = False
funcInfo=FunctionCallInfo(funcInfoStr)
l.append(funcInfo)
funcInfoStr=''
blockOfNormalLines.append(LineOfCode(line,funcInfo))
#LOG INFO
print "find normal line:",line
else:
#if headInfoPattern.match(line):
if ('a'<=line[0] and line[0]<='z') or ('A'<=line[0] and line[0]<'Z') or line[0]=='_':
if lines.index(line)+1<len(lines):
if re.search(no_such_file_or_directory,lines[lines.index(line)+1]):
ignore=True
continue
elif last_ignore:
last_ignore=False
continue
#BUG
#listOfLines = fixBlock(blockOfNormalLines)
listOfLines = blockOfNormalLines
l.extend(listOfLines)
blockOfNormalLines=[]
if not meetBreakPoint:
for aline in listOfLines:
aline.set_func_call_info(funcInfo)
funcInfo.addLines(listOfLines)
#Head function call stack info
if meetBreakPoint:
line = line.strip('Breakpoint 1, ')
meetBreakPoint=False
funcInfoStr = line.strip('\n')
isFuncInfo=True
#LOG INFO
print "find head info line:",line
else:
#Tail function call stack info
funcInfoStr+=line.strip()
#LOG INFO
print "find tail info line:",line
elif nullLineNum == 2:
#Error info
#FIXME
#listOfLines = fixBlock(blockOfNormalLines)
listOfLines = blockOfNormalLines
l.extend(listOfLines)
blockOfNormalLines=[]
#errorInfo.append(line)
print 'ALL PARSED\n============================================'
fixer=RedundancyFixer(l,self.redundant_level)
now1 = datetime.datetime.now()
print "initial parse time:",now1-now0
l=fixer.fix()
now2 = datetime.datetime.now()
print "filter complains time:",now2-now1
write2File("trace.txt", l)
now3 = datetime.datetime.now()
print "write2File time:",now3-now2
return l
