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])
16 for f in sys.argv[1], sys.argv[2]:
17 if not os.path.exists(f):
18 sys.stderr.write("Error: file '%s' does not exist\n" % f)
23 for l in os.popen("nm --size-sort " + file).readlines():
24 size, type, name = l[:-1].split()
25 if type in "tTdDbBrR":
26 if "." in name: name = "static." + name.split(".")[0]
27 sym[name] = sym.get(name, 0) + int(size, 16)
28 for l in os.popen("readelf -S " + file).readlines():
30 if len(x)<6 or x[1] != ".rodata": continue
31 sym[".rodata"] = int(x[5], 16)
34 old = getsizes(sys.argv[1])
35 new = getsizes(sys.argv[2])
36 grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
37 delta, common = [], {}
44 if name not in common:
47 delta.append((-old[name], name))
50 if name not in common:
53 delta.append((new[name], name))
56 d = new.get(name, 0) - old.get(name, 0)
57 if d>0: grow, up = grow+1, up+d
58 if d<0: shrink, down = shrink+1, down-d
59 delta.append((d, name))
64 print "%-48s %7s %7s %+7s" % ("function", "old", "new", "delta")
66 if d: print "%-48s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)
68 total="(add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s)%%sTotal: %s bytes"\
69 % (add, remove, grow, shrink, up, -down, up-down)
70 print total % (" "*(80-len(total)))