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
 10import sys, os, re
 11from signal import signal, SIGPIPE, SIG_DFL
 12
 13signal(SIGPIPE, SIG_DFL)
 14
 15if len(sys.argv) < 3:
 16    sys.stderr.write("usage: %s [option] file1 file2\n" % sys.argv[0])
 17    sys.stderr.write("The options are:\n")
 18    sys.stderr.write("-c	categorize output based on symbol type\n")
 19    sys.stderr.write("-d	Show delta of Data Section\n")
 20    sys.stderr.write("-t	Show delta of text Section\n")
 21    sys.exit(-1)
 22
 23re_NUMBER = re.compile(r'\.[0-9]+')
 24
 25def getsizes(file, format):
 26    sym = {}
 27    with os.popen("nm --size-sort " + file) as f:
 28        for line in f:
 29            size, type, name = line.split()
 30            if type in format:
 31                # strip generated symbols
 32                if name.startswith("__mod_"): continue
 33                if name.startswith("__se_sys"): continue
 34                if name.startswith("__se_compat_sys"): continue
 35                if name == "linux_banner": continue
 36                # statics and some other optimizations adds random .NUMBER
 37                name = re_NUMBER.sub('', name)
 38                sym[name] = sym.get(name, 0) + int(size, 16)
 39    return sym
 40
 41def calc(oldfile, newfile, format):
 42    old = getsizes(oldfile, format)
 43    new = getsizes(newfile, format)
 44    grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
 45    delta, common = [], {}
 46    otot, ntot = 0, 0
 47
 48    for a in old:
 49        if a in new:
 50            common[a] = 1
 51
 52    for name in old:
 53        otot += old[name]
 54        if name not in common:
 55            remove += 1
 56            down += old[name]
 57            delta.append((-old[name], name))
 58
 59    for name in new:
 60        ntot += new[name]
 61        if name not in common:
 62            add += 1
 63            up += new[name]
 64            delta.append((new[name], name))
 65
 66    for name in common:
 67        d = new.get(name, 0) - old.get(name, 0)
 68        if d>0: grow, up = grow+1, up+d
 69        if d<0: shrink, down = shrink+1, down-d
 70        delta.append((d, name))
 71
 72    delta.sort()
 73    delta.reverse()
 74    return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot
 75
 76def print_result(symboltype, symbolformat, argc):
 77    grow, shrink, add, remove, up, down, delta, old, new, otot, ntot = \
 78    calc(sys.argv[argc - 1], sys.argv[argc], symbolformat)
 79
 80    print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
 81          (add, remove, grow, shrink, up, -down, up-down))
 82    print("%-40s %7s %7s %+7s" % (symboltype, "old", "new", "delta"))
 83    for d, n in delta:
 84        if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
 85
 86    if otot:
 87        percent = (ntot - otot) * 100.0 / otot
 88    else:
 89        percent = 0
 90    print("Total: Before=%d, After=%d, chg %+.2f%%" % (otot, ntot, percent))
 91
 92if sys.argv[1] == "-c":
 93    print_result("Function", "tT", 3)
 94    print_result("Data", "dDbB", 3)
 95    print_result("RO Data", "rR", 3)
 96elif sys.argv[1] == "-d":
 97    print_result("Data", "dDbBrR", 3)
 98elif sys.argv[1] == "-t":
 99    print_result("Function", "tT", 3)
100else:
101    print_result("Function", "tTdDbBrR", 2)

 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
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()
20        if type in "tTdDbBrR":
21            # strip generated symbols
22            if name[:6] == "__mod_": continue
23            # function names begin with '.' on 64-bit powerpc
24            if "." in name[1:]: name = "static." + name.split(".")[0]
25            sym[name] = sym.get(name, 0) + int(size, 16)
 
 
 
 
26    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)