1 | #!/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 |
|
---|
10 | import sys, os, re
|
---|
11 |
|
---|
12 | if len(sys.argv) != 3:
|
---|
13 | sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])
|
---|
14 | sys.exit(-1)
|
---|
15 |
|
---|
16 | def getsizes(file):
|
---|
17 | sym = {}
|
---|
18 | for l in os.popen("nm --size-sort " + file).readlines():
|
---|
19 | size, type, name = l[:-1].split()
|
---|
20 | if type in "tTdDbB":
|
---|
21 | if "." in name: name = "static." + name.split(".")[0]
|
---|
22 | sym[name] = sym.get(name, 0) + int(size, 16)
|
---|
23 | 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)
|
---|
27 | return sym
|
---|
28 |
|
---|
29 | old = getsizes(sys.argv[1])
|
---|
30 | new = getsizes(sys.argv[2])
|
---|
31 | grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
|
---|
32 | delta, common = [], {}
|
---|
33 |
|
---|
34 | for a in old:
|
---|
35 | if a in new:
|
---|
36 | common[a] = 1
|
---|
37 |
|
---|
38 | for name in old:
|
---|
39 | if name not in common:
|
---|
40 | remove += 1
|
---|
41 | down += old[name]
|
---|
42 | delta.append((-old[name], name))
|
---|
43 |
|
---|
44 | for name in new:
|
---|
45 | if name not in common:
|
---|
46 | add += 1
|
---|
47 | up += new[name]
|
---|
48 | delta.append((new[name], name))
|
---|
49 |
|
---|
50 | for 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 |
|
---|
56 | delta.sort()
|
---|
57 | delta.reverse()
|
---|
58 |
|
---|
59 | print "%-48s %7s %7s %+7s" % ("function", "old", "new", "delta")
|
---|
60 | for d, n in delta:
|
---|
61 | if d: print "%-48s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)
|
---|
62 | print "-"*78
|
---|
63 | total="(add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s)%%sTotal: %s bytes"\
|
---|
64 | % (add, remove, grow, shrink, up, -down, up-down)
|
---|
65 | print total % (" "*(80-len(total)))
|
---|