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 11eef06b82SAlexey Dobriyanfrom signal import signal, SIGPIPE, SIG_DFL 12eef06b82SAlexey Dobriyan 13eef06b82SAlexey Dobriyansignal(SIGPIPE, SIG_DFL) 14d960600dSMatt Mackall 15d960600dSMatt Mackallif len(sys.argv) != 3: 16d960600dSMatt Mackall sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0]) 17d960600dSMatt Mackall sys.exit(-1) 18d960600dSMatt Mackall 19*0d7bbb43SAlexey Dobriyanre_NUMBER = re.compile(r'\.[0-9]+') 20*0d7bbb43SAlexey Dobriyan 21d960600dSMatt Mackalldef getsizes(file): 22d960600dSMatt Mackall sym = {} 233af06fd9SAlexey Dobriyan with os.popen("nm --size-sort " + file) as f: 243af06fd9SAlexey Dobriyan for line in f: 253af06fd9SAlexey Dobriyan size, type, name = line.split() 26c50e3f51SJean Delvare if type in "tTdDbBrR": 27c50e3f51SJean Delvare # strip generated symbols 28c2e182faSJosh Triplett if name.startswith("__mod_"): continue 29b25c2ff5SJosh Triplett if name.startswith("SyS_"): continue 30b25c2ff5SJosh Triplett if name.startswith("compat_SyS_"): continue 315a7b2d27SJosh Triplett if name == "linux_banner": continue 3221cf6e58SAndi Kleen # statics and some other optimizations adds random .NUMBER 33*0d7bbb43SAlexey Dobriyan name = re_NUMBER.sub('', name) 3451849738SRob Landley sym[name] = sym.get(name, 0) + int(size, 16) 35d960600dSMatt Mackall return sym 36d960600dSMatt Mackall 37d960600dSMatt Mackallold = getsizes(sys.argv[1]) 38d960600dSMatt Mackallnew = getsizes(sys.argv[2]) 39d960600dSMatt Mackallgrow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 40d960600dSMatt Mackalldelta, common = [], {} 41b21e91c3SVineet Guptaotot, ntot = 0, 0 42d960600dSMatt Mackall 43d960600dSMatt Mackallfor a in old: 44d960600dSMatt Mackall if a in new: 45d960600dSMatt Mackall common[a] = 1 46d960600dSMatt Mackall 47d960600dSMatt Mackallfor name in old: 48b21e91c3SVineet Gupta otot += old[name] 49d960600dSMatt Mackall if name not in common: 50d960600dSMatt Mackall remove += 1 51d960600dSMatt Mackall down += old[name] 52d960600dSMatt Mackall delta.append((-old[name], name)) 53d960600dSMatt Mackall 54d960600dSMatt Mackallfor name in new: 55b21e91c3SVineet Gupta ntot += new[name] 56d960600dSMatt Mackall if name not in common: 57d960600dSMatt Mackall add += 1 58d960600dSMatt Mackall up += new[name] 59d960600dSMatt Mackall delta.append((new[name], name)) 60d960600dSMatt Mackall 61d960600dSMatt Mackallfor name in common: 62d960600dSMatt Mackall d = new.get(name, 0) - old.get(name, 0) 63d960600dSMatt Mackall if d>0: grow, up = grow+1, up+d 64d960600dSMatt Mackall if d<0: shrink, down = shrink+1, down-d 65d960600dSMatt Mackall delta.append((d, name)) 66d960600dSMatt Mackall 67d960600dSMatt Mackalldelta.sort() 68d960600dSMatt Mackalldelta.reverse() 69d960600dSMatt Mackall 7072214a24SSergey Senozhatskyprint("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ 7172214a24SSergey Senozhatsky (add, remove, grow, shrink, up, -down, up-down)) 7272214a24SSergey Senozhatskyprint("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")) 73d960600dSMatt Mackallfor d, n in delta: 7472214a24SSergey Senozhatsky if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)) 75b21e91c3SVineet Gupta 768cde0dafSRiku Voipioprint("Total: Before=%d, After=%d, chg %+.2f%%" % \ 778cde0dafSRiku Voipio (otot, ntot, (ntot - otot)*100.0/otot)) 78