blob: 855198c9dedbedce3083cf651b61142da399134f [file] [log] [blame]
Matt Mackalld9606002006-01-08 01:05:19 -08001#!/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()
Jean Delvarec50e3f52011-03-22 16:35:13 -070020 if type in "tTdDbBrR":
21 # strip generated symbols
22 if name[:6] == "__mod_": continue
Andi Kleen21cf6e52013-10-22 08:46:23 -070023 # statics and some other optimizations adds random .NUMBER
24 name = re.sub(r'\.[0-9]+', '', name)
Rob Landley51849732006-06-25 05:47:10 -070025 sym[name] = sym.get(name, 0) + int(size, 16)
Matt Mackalld9606002006-01-08 01:05:19 -080026 return sym
27
28old = getsizes(sys.argv[1])
29new = getsizes(sys.argv[2])
30grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
31delta, common = [], {}
32
33for a in old:
34 if a in new:
35 common[a] = 1
36
37for name in old:
38 if name not in common:
39 remove += 1
40 down += old[name]
41 delta.append((-old[name], name))
42
43for name in new:
44 if name not in common:
45 add += 1
46 up += new[name]
47 delta.append((new[name], name))
48
49for name in common:
50 d = new.get(name, 0) - old.get(name, 0)
51 if d>0: grow, up = grow+1, up+d
52 if d<0: shrink, down = shrink+1, down-d
53 delta.append((d, name))
54
55delta.sort()
56delta.reverse()
57
58print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
59 (add, remove, grow, shrink, up, -down, up-down)
60print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")
61for d, n in delta:
62 if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)