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1#!/usr/bin/env python3
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 if line.startswith("\n") or ":" in line:
30 continue
31 size, type, name = line.split()
32 if type in format:
33 # strip generated symbols
34 if name.startswith("__mod_"): continue
35 if name.startswith("__se_sys"): continue
36 if name.startswith("__se_compat_sys"): continue
37 if name.startswith("__addressable_"): continue
38 if name == "linux_banner": continue
39 # statics and some other optimizations adds random .NUMBER
40 name = re_NUMBER.sub('', name)
41 sym[name] = sym.get(name, 0) + int(size, 16)
42 return sym
43
44def calc(oldfile, newfile, format):
45 old = getsizes(oldfile, format)
46 new = getsizes(newfile, format)
47 grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
48 delta, common = [], {}
49 otot, ntot = 0, 0
50
51 for a in old:
52 if a in new:
53 common[a] = 1
54
55 for name in old:
56 otot += old[name]
57 if name not in common:
58 remove += 1
59 down += old[name]
60 delta.append((-old[name], name))
61
62 for name in new:
63 ntot += new[name]
64 if name not in common:
65 add += 1
66 up += new[name]
67 delta.append((new[name], name))
68
69 for name in common:
70 d = new.get(name, 0) - old.get(name, 0)
71 if d>0: grow, up = grow+1, up+d
72 if d<0: shrink, down = shrink+1, down-d
73 delta.append((d, name))
74
75 delta.sort()
76 delta.reverse()
77 return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot
78
79def print_result(symboltype, symbolformat, argc):
80 grow, shrink, add, remove, up, down, delta, old, new, otot, ntot = \
81 calc(sys.argv[argc - 1], sys.argv[argc], symbolformat)
82
83 print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
84 (add, remove, grow, shrink, up, -down, up-down))
85 print("%-40s %7s %7s %+7s" % (symboltype, "old", "new", "delta"))
86 for d, n in delta:
87 if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
88
89 if otot:
90 percent = (ntot - otot) * 100.0 / otot
91 else:
92 percent = 0
93 print("Total: Before=%d, After=%d, chg %+.2f%%" % (otot, ntot, percent))
94
95if sys.argv[1] == "-c":
96 print_result("Function", "tT", 3)
97 print_result("Data", "dDbB", 3)
98 print_result("RO Data", "rR", 3)
99elif sys.argv[1] == "-d":
100 print_result("Data", "dDbBrR", 3)
101elif sys.argv[1] == "-t":
102 print_result("Function", "tT", 3)
103else:
104 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.startswith("__mod_"): continue
23 if name.startswith("SyS_"): continue
24 if name.startswith("compat_SyS_"): continue
25 if name == "linux_banner": continue
26 # statics and some other optimizations adds random .NUMBER
27 name = re.sub(r'\.[0-9]+', '', name)
28 sym[name] = sym.get(name, 0) + int(size, 16)
29 return sym
30
31old = getsizes(sys.argv[1])
32new = getsizes(sys.argv[2])
33grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
34delta, common = [], {}
35
36for a in old:
37 if a in new:
38 common[a] = 1
39
40for name in old:
41 if name not in common:
42 remove += 1
43 down += old[name]
44 delta.append((-old[name], name))
45
46for name in new:
47 if name not in common:
48 add += 1
49 up += new[name]
50 delta.append((new[name], name))
51
52for name in common:
53 d = new.get(name, 0) - old.get(name, 0)
54 if d>0: grow, up = grow+1, up+d
55 if d<0: shrink, down = shrink+1, down-d
56 delta.append((d, name))
57
58delta.sort()
59delta.reverse()
60
61print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
62 (add, remove, grow, shrink, up, -down, up-down))
63print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta"))
64for d, n in delta:
65 if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))