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 16def getsizes(file): 17 sym = {} 18 for l in os.popen("nm --size-sort " + file).readlines(): 19 size, type, name = l[:-1].split() 20 if type in "tTdDbB": 21 if "." in name: name = "static." + name.split(".")[0] 22 sym[name] = sym.get(name, 0) + int(size, 16) 23 return sym 24 25old = getsizes(sys.argv[1]) 26new = getsizes(sys.argv[2]) 27grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 28delta, common = [], {} 29 30for a in old: 31 if a in new: 32 common[a] = 1 33 34for name in old: 35 if name not in common: 36 remove += 1 37 down += old[name] 38 delta.append((-old[name], name)) 39 40for name in new: 41 if name not in common: 42 add += 1 43 up += new[name] 44 delta.append((new[name], name)) 45 46for name in common: 47 d = new.get(name, 0) - old.get(name, 0) 48 if d>0: grow, up = grow+1, up+d 49 if d<0: shrink, down = shrink+1, down-d 50 delta.append((d, name)) 51 52delta.sort() 53delta.reverse() 54 55print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ 56 (add, remove, grow, shrink, up, -down, up-down) 57print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta") 58for d, n in delta: 59 if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) 60