blob: 311b90cdc336a04b01fe1a62ed26b8615daa00da [file] [log] [blame]
Maurus Cuelenaerea85f3692009-07-01 10:41:34 +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
12def usage():
13 sys.stderr.write("Usage: %s file1 file2\n" % sys.argv[0])
14 sys.exit(-1)
15
16if len(sys.argv) < 3:
17 usage()
18
19for f in sys.argv[1], sys.argv[2]:
20 if not os.path.exists(f):
21 sys.stderr.write("Error: file '%s' does not exist\n" % f)
22 usage()
23
24nm_args = " ".join([x for x in sys.argv[3:]])
25def getsizes(file):
26 sym = {}
27 for l in os.popen("nm --size-sort %s %s" % (nm_args, file)).readlines():
28 l = l.strip()
29 # Skip empty lines
30 if not len(l): continue
31 # Skip archive members
32 if len(l.split()) == 1 and l.endswith(':'):
33 continue
34 size, type, name = l.split()
35 if type in "tTdDbBrR":
36 if "." in name: name = "static." + name.split(".")[0]
37 sym[name] = sym.get(name, 0) + int(size, 16)
38 for l in os.popen("readelf -S " + file).readlines():
39 x = l.split()
40 if len(x)<6 or x[1] != ".rodata": continue
41 sym[".rodata"] = int(x[5], 16)
42 return sym
43
44old = getsizes(sys.argv[1])
45new = getsizes(sys.argv[2])
46grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
47delta, common = [], {}
48
49for a in old:
50 if a in new:
51 common[a] = 1
52
53for name in old:
54 if name not in common:
55 remove += 1
56 down += old[name]
57 delta.append((-old[name], name))
58
59for name in new:
60 if name not in common:
61 add += 1
62 up += new[name]
63 delta.append((new[name], name))
64
65for name in common:
66 d = new.get(name, 0) - old.get(name, 0)
67 if d>0: grow, up = grow+1, up+d
68 if d<0: shrink, down = shrink+1, down-d
69 delta.append((d, name))
70
71delta.sort()
72delta.reverse()
73
74print "%-48s %7s %7s %+7s" % ("function", "old", "new", "delta")
75for d, n in delta:
76 if d: print "%-48s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)
77print "-"*78
78total="(add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s)%%s\nTotal: %s bytes"\
79 % (add, remove, grow, shrink, up, -down, up-down)
80print total % (" "*(80-len(total)))