3 # Copyright 2004 Matt Mackall <mpm@selenic.com>
5 # inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen
7 # This software may be used and distributed according to the terms
8 # of the GNU General Public License, incorporated herein by reference.
12 if len(sys.argv) != 3:
13 sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])
18 for l in os.popen("nm --size-sort " + file).readlines():
19 size, type, name = l[:-1].split()
20 if type in "tTdDbBrR":
21 # strip generated symbols
22 if name.startswith("__mod_"): continue
23 if name == "linux_banner": continue
24 # statics and some other optimizations adds random .NUMBER
25 name = re.sub(r'\.[0-9]+', '', name)
26 sym[name] = sym.get(name, 0) + int(size, 16)
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 = [], {}
39 if name not in common:
42 delta.append((-old[name], name))
45 if name not in common:
48 delta.append((new[name], name))
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))
59 print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
60 (add, remove, grow, shrink, up, -down, up-down)
61 print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")
63 if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)