]>
Commit | Line | Data |
---|---|---|
d960600d MM |
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 | ||
10 | import sys, os, re | |
eef06b82 AD |
11 | from signal import signal, SIGPIPE, SIG_DFL |
12 | ||
13 | signal(SIGPIPE, SIG_DFL) | |
d960600d | 14 | |
192efb7a MS |
15 | if 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") | |
61fc4708 | 18 | sys.stderr.write("-c categorize output based on symbol type\n") |
192efb7a MS |
19 | sys.stderr.write("-d Show delta of Data Section\n") |
20 | sys.stderr.write("-t Show delta of text Section\n") | |
d960600d MM |
21 | sys.exit(-1) |
22 | ||
0d7bbb43 AD |
23 | re_NUMBER = re.compile(r'\.[0-9]+') |
24 | ||
192efb7a | 25 | def getsizes(file, format): |
d960600d | 26 | sym = {} |
3af06fd9 AD |
27 | with os.popen("nm --size-sort " + file) as f: |
28 | for line in f: | |
29 | size, type, name = line.split() | |
192efb7a | 30 | if type in format: |
3af06fd9 AD |
31 | # strip generated symbols |
32 | if name.startswith("__mod_"): continue | |
e145242e | 33 | if name.startswith("__se_sys"): continue |
5ac9efa3 | 34 | if name.startswith("__se_compat_sys"): continue |
3af06fd9 AD |
35 | if name == "linux_banner": continue |
36 | # statics and some other optimizations adds random .NUMBER | |
0d7bbb43 | 37 | name = re_NUMBER.sub('', name) |
3af06fd9 | 38 | sym[name] = sym.get(name, 0) + int(size, 16) |
d960600d MM |
39 | return sym |
40 | ||
192efb7a MS |
41 | def 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 | |
d960600d | 47 | |
192efb7a MS |
48 | for a in old: |
49 | if a in new: | |
50 | common[a] = 1 | |
d960600d | 51 | |
192efb7a MS |
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)) | |
d960600d | 58 | |
192efb7a MS |
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)) | |
d960600d | 65 | |
192efb7a | 66 | for name in common: |
d960600d MM |
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 | ||
192efb7a MS |
72 | delta.sort() |
73 | delta.reverse() | |
74 | return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot | |
d960600d | 75 | |
192efb7a MS |
76 | def 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) | |
b21e91c3 | 79 | |
192efb7a MS |
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 | ||
edbddb83 AS |
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)) | |
192efb7a MS |
91 | |
92 | if sys.argv[1] == "-c": | |
93 | print_result("Function", "tT", 3) | |
94 | print_result("Data", "dDbB", 3) | |
95 | print_result("RO Data", "rR", 3) | |
96 | elif sys.argv[1] == "-d": | |
97 | print_result("Data", "dDbBrR", 3) | |
98 | elif sys.argv[1] == "-t": | |
99 | print_result("Function", "tT", 3) | |
100 | else: | |
101 | print_result("Function", "tTdDbBrR", 2) |