blob: 67b3d290d7397d83aeef510d12987dec796c880d [file] [log] [blame]
Rob Landleyf8a80842006-05-07 19:26:53 +00001#!/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()
Denis Vlasenko2425bdc2006-11-29 14:32:01 +000020 if type in "tTdDbBrR":
Rob Landley712ba852006-05-08 18:30:33 +000021 if "." in name: name = "static." + name.split(".")[0]
22 sym[name] = sym.get(name, 0) + int(size, 16)
Rob Landleyf14f7fc2006-05-29 20:56:27 +000023 for l in os.popen("readelf -S " + file).readlines():
24 x = l.split()
25 if len(x)<6 or x[1] != ".rodata": continue
26 sym[".rodata"] = int(x[5], 16)
Rob Landleyf8a80842006-05-07 19:26:53 +000027 return sym
28
29old = getsizes(sys.argv[1])
30new = getsizes(sys.argv[2])
31grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
32delta, common = [], {}
33
34for a in old:
35 if a in new:
36 common[a] = 1
37
38for name in old:
39 if name not in common:
40 remove += 1
41 down += old[name]
42 delta.append((-old[name], name))
43
44for name in new:
45 if name not in common:
46 add += 1
47 up += new[name]
48 delta.append((new[name], name))
49
50for name in common:
51 d = new.get(name, 0) - old.get(name, 0)
52 if d>0: grow, up = grow+1, up+d
53 if d<0: shrink, down = shrink+1, down-d
54 delta.append((d, name))
55
56delta.sort()
57delta.reverse()
58
Rob Landleyf14f7fc2006-05-29 20:56:27 +000059print "%-48s %7s %7s %+7s" % ("function", "old", "new", "delta")
Rob Landleyf8a80842006-05-07 19:26:53 +000060for d, n in delta:
Rob Landleyf14f7fc2006-05-29 20:56:27 +000061 if d: print "%-48s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)
62print "-"*78
63total="(add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s)%%sTotal: %s bytes"\
64 % (add, remove, grow, shrink, up, -down, up-down)
65print total % (" "*(80-len(total)))