1#!/usr/bin/python 2# 3# Copyright 2004 Matt Mackall <mpm@selenic.com> 4# 5# inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen 6# 7# This software may be used and distributed according to the terms 8# of the GNU General Public License, incorporated herein by reference. 9 10import sys, os, re 11 12if len(sys.argv) != 3: 13 sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0]) 14 sys.exit(-1) 15 16for f in sys.argv[1], sys.argv[2]: 17 if not os.path.exists(f): 18 sys.stderr.write("Error: file '%s' does not exist\n" % f) 19 sys.exit(-1) 20 21def getsizes(file): 22 sym = {} 23 for l in os.popen("nm --size-sort " + file).readlines(): 24 size, type, name = l[:-1].split() 25 if type in "tTdDbBrR": 26 if "." in name: name = "static." + name.split(".")[0] 27 sym[name] = sym.get(name, 0) + int(size, 16) 28 for l in os.popen("readelf -S " + file).readlines(): 29 x = l.split() 30 if len(x)<6 or x[1] != ".rodata": continue 31 sym[".rodata"] = int(x[5], 16) 32 return sym 33 34old = getsizes(sys.argv[1]) 35new = getsizes(sys.argv[2]) 36grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 37delta, common = [], {} 38 39for a in old: 40 if a in new: 41 common[a] = 1 42 43for name in old: 44 if name not in common: 45 remove += 1 46 down += old[name] 47 delta.append((-old[name], name)) 48 49for name in new: 50 if name not in common: 51 add += 1 52 up += new[name] 53 delta.append((new[name], name)) 54 55for name in common: 56 d = new.get(name, 0) - old.get(name, 0) 57 if d>0: grow, up = grow+1, up+d 58 if d<0: shrink, down = shrink+1, down-d 59 delta.append((d, name)) 60 61delta.sort() 62delta.reverse() 63 64print "%-48s %7s %7s %+7s" % ("function", "old", "new", "delta") 65for d, n in delta: 66 if d: print "%-48s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) 67print "-"*78 68total="(add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s)%%sTotal: %s bytes"\ 69 % (add, remove, grow, shrink, up, -down, up-down) 70print total % (" "*(80-len(total))) 71