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
11from signal import signal, SIGPIPE, SIG_DFL
12
13signal(SIGPIPE, SIG_DFL)
14
15if len(sys.argv) != 3:
16    sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])
 
 
 
 
17    sys.exit(-1)
18
19re_NUMBER = re.compile(r'\.[0-9]+')
20
21def getsizes(file):
22    sym = {}
23    with os.popen("nm --size-sort " + file) as f:
24        for line in f:
25            size, type, name = line.split()
26            if type in "tTdDbBrR":
27                # strip generated symbols
28                if name.startswith("__mod_"): continue
29                if name.startswith("SyS_"): continue
30                if name.startswith("compat_SyS_"): continue
31                if name == "linux_banner": continue
32                # statics and some other optimizations adds random .NUMBER
33                name = re_NUMBER.sub('', name)
34                sym[name] = sym.get(name, 0) + int(size, 16)
35    return sym
36
37old = getsizes(sys.argv[1])
38new = getsizes(sys.argv[2])
39grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
40delta, common = [], {}
41otot, ntot = 0, 0
42
43for a in old:
44    if a in new:
45        common[a] = 1
46
47for name in old:
48    otot += old[name]
49    if name not in common:
50        remove += 1
51        down += old[name]
52        delta.append((-old[name], name))
53
54for name in new:
55    ntot += new[name]
56    if name not in common:
57        add += 1
58        up += new[name]
59        delta.append((new[name], name))
 
60
61for name in common:
62        d = new.get(name, 0) - old.get(name, 0)
63        if d>0: grow, up = grow+1, up+d
64        if d<0: shrink, down = shrink+1, down-d
65        delta.append((d, name))
66
67delta.sort()
68delta.reverse()
69
70print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
71      (add, remove, grow, shrink, up, -down, up-down))
72print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta"))
73for d, n in delta:
74    if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
75
76print("Total: Before=%d, After=%d, chg %+.2f%%" % \
77    (otot, ntot, (ntot - otot)*100.0/otot))