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      1 #!/usr/bin/env python
      2 
      3 """
      4 Script to Summarize statistics in the scan-build output.
      5 
      6 Statistics are enabled by passing '-internal-stats' option to scan-build 
      7 (or '-analyzer-stats' to the analyzer).
      8 
      9 """
     10 
     11 import string
     12 from operator import itemgetter
     13 import sys
     14 
     15 if __name__ == '__main__':
     16     if len(sys.argv) < 2:
     17         print >> sys.stderr, 'Usage: ', sys.argv[0],\
     18                              'scan_build_output_file'
     19         sys.exit(-1)
     20 
     21     f = open(sys.argv[1], 'r')
     22     Time = 0.0
     23     TotalTime = 0.0
     24     MaxTime = 0.0
     25     Warnings = 0
     26     Count = 0
     27     FunctionsAnalyzed = 0
     28     ReachableBlocks = 0
     29     ReachedMaxSteps = 0
     30     NumSteps = 0
     31     NumInlinedCallSites = 0
     32     NumBifurcatedCallSites = 0
     33     MaxCFGSize = 0
     34     Mode = 1
     35     for line in f:
     36         if ("Miscellaneous Ungrouped Timers" in line) :
     37           Mode = 1
     38         if (("Analyzer Total Time" in line) and (Mode == 1)) :
     39           s = line.split()
     40           Time = Time + float(s[6])
     41           Count = Count + 1
     42           if (float(s[6]) > MaxTime) :
     43             MaxTime = float(s[6])
     44         if ((("warning generated." in line) or ("warnings generated" in line)) and Mode == 1) :
     45           s = line.split()
     46           Warnings = Warnings + int(s[0])
     47         if (("The # of functions analysed (as top level)" in line) and (Mode == 1)) :
     48           s = line.split()
     49           FunctionsAnalyzed = FunctionsAnalyzed + int(s[0])
     50         if (("The % of reachable basic blocks" in line) and (Mode == 1)) :
     51           s = line.split()
     52           ReachableBlocks = ReachableBlocks + int(s[0])
     53         if (("The # of times we reached the max number of steps" in line) and (Mode == 1)) :
     54           s = line.split()
     55           ReachedMaxSteps = ReachedMaxSteps + int(s[0])
     56         if (("The maximum number of basic blocks in a function" in line) and (Mode == 1)) :
     57           s = line.split()
     58           if (MaxCFGSize < int(s[0])) :
     59             MaxCFGSize = int(s[0])
     60         if (("The # of steps executed" in line) and (Mode == 1)) :
     61           s = line.split()
     62           NumSteps = NumSteps + int(s[0])
     63         if (("The # of times we inlined a call" in line) and (Mode == 1)) :
     64           s = line.split()
     65           NumInlinedCallSites = NumInlinedCallSites + int(s[0])
     66         if (("The # of times we split the path due to imprecise dynamic dispatch info" in line) and (Mode == 1)) :
     67           s = line.split()
     68           NumBifurcatedCallSites = NumBifurcatedCallSites + int(s[0])
     69         if ((")  Total" in line) and (Mode == 1)) :
     70           s = line.split()
     71           TotalTime = TotalTime + float(s[6])
     72           
     73     print "TU Count %d" % (Count)
     74     print "Time %f" % (Time)
     75     print "Warnings %d" % (Warnings)
     76     print "Functions Analyzed %d" % (FunctionsAnalyzed)
     77     print "Reachable Blocks %d" % (ReachableBlocks)
     78     print "Reached Max Steps %d" % (ReachedMaxSteps)
     79     print "Number of Steps %d" % (NumSteps)
     80     print "Number of Inlined calls %d (bifurcated %d)" % (NumInlinedCallSites, NumBifurcatedCallSites)
     81     print "MaxTime %f" % (MaxTime)
     82     print "TotalTime %f" % (TotalTime)
     83     print "Max CFG Size %d" % (MaxCFGSize)
     84