1d960600dSMatt Mackall#!/usr/bin/python 2d960600dSMatt Mackall# 3d960600dSMatt Mackall# Copyright 2004 Matt Mackall <mpm@selenic.com> 4d960600dSMatt Mackall# 5d960600dSMatt Mackall# inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen 6d960600dSMatt Mackall# 7d960600dSMatt Mackall# This software may be used and distributed according to the terms 8d960600dSMatt Mackall# of the GNU General Public License, incorporated herein by reference. 9d960600dSMatt Mackall 10d960600dSMatt Mackallimport sys, os, re 11d960600dSMatt Mackall 12d960600dSMatt Mackallif len(sys.argv) != 3: 13d960600dSMatt Mackall sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0]) 14d960600dSMatt Mackall sys.exit(-1) 15d960600dSMatt Mackall 16d960600dSMatt Mackalldef getsizes(file): 17d960600dSMatt Mackall sym = {} 18d960600dSMatt Mackall for l in os.popen("nm --size-sort " + file).readlines(): 19d960600dSMatt Mackall size, type, name = l[:-1].split() 20c50e3f51SJean Delvare if type in "tTdDbBrR": 21c50e3f51SJean Delvare # strip generated symbols 22*c2e182faSJosh Triplett if name.startswith("__mod_"): continue 235a7b2d27SJosh Triplett if name == "linux_banner": continue 2421cf6e58SAndi Kleen # statics and some other optimizations adds random .NUMBER 2521cf6e58SAndi Kleen name = re.sub(r'\.[0-9]+', '', name) 2651849738SRob Landley sym[name] = sym.get(name, 0) + int(size, 16) 27d960600dSMatt Mackall return sym 28d960600dSMatt Mackall 29d960600dSMatt Mackallold = getsizes(sys.argv[1]) 30d960600dSMatt Mackallnew = getsizes(sys.argv[2]) 31d960600dSMatt Mackallgrow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 32d960600dSMatt Mackalldelta, common = [], {} 33d960600dSMatt Mackall 34d960600dSMatt Mackallfor a in old: 35d960600dSMatt Mackall if a in new: 36d960600dSMatt Mackall common[a] = 1 37d960600dSMatt Mackall 38d960600dSMatt Mackallfor name in old: 39d960600dSMatt Mackall if name not in common: 40d960600dSMatt Mackall remove += 1 41d960600dSMatt Mackall down += old[name] 42d960600dSMatt Mackall delta.append((-old[name], name)) 43d960600dSMatt Mackall 44d960600dSMatt Mackallfor name in new: 45d960600dSMatt Mackall if name not in common: 46d960600dSMatt Mackall add += 1 47d960600dSMatt Mackall up += new[name] 48d960600dSMatt Mackall delta.append((new[name], name)) 49d960600dSMatt Mackall 50d960600dSMatt Mackallfor name in common: 51d960600dSMatt Mackall d = new.get(name, 0) - old.get(name, 0) 52d960600dSMatt Mackall if d>0: grow, up = grow+1, up+d 53d960600dSMatt Mackall if d<0: shrink, down = shrink+1, down-d 54d960600dSMatt Mackall delta.append((d, name)) 55d960600dSMatt Mackall 56d960600dSMatt Mackalldelta.sort() 57d960600dSMatt Mackalldelta.reverse() 58d960600dSMatt Mackall 59d960600dSMatt Mackallprint "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ 60d960600dSMatt Mackall (add, remove, grow, shrink, up, -down, up-down) 61d960600dSMatt Mackallprint "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta") 62d960600dSMatt Mackallfor d, n in delta: 63d960600dSMatt Mackall if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) 64