1 #!/usr/bin/env python3 1 #!/usr/bin/env python3
2 # 2 #
3 # Copyright 2004 Matt Mackall <mpm@selenic.com> 3 # Copyright 2004 Matt Mackall <mpm@selenic.com>
4 # 4 #
5 # inspired by perl Bloat-O-Meter (c) 1997 by A 5 # inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen
6 # 6 #
7 # This software may be used and distributed ac 7 # This software may be used and distributed according to the terms
8 # of the GNU General Public License, incorpora 8 # of the GNU General Public License, incorporated herein by reference.
9 9
10 import sys, os, re, argparse !! 10 import sys, os, re
11 from signal import signal, SIGPIPE, SIG_DFL 11 from signal import signal, SIGPIPE, SIG_DFL
12 12
13 signal(SIGPIPE, SIG_DFL) 13 signal(SIGPIPE, SIG_DFL)
14 14
15 parser = argparse.ArgumentParser(description=" !! 15 if len(sys.argv) < 3:
16 group = parser.add_mutually_exclusive_group() !! 16 sys.stderr.write("usage: %s [option] file1 file2\n" % sys.argv[0])
17 group.add_argument('-c', help='categorize outp !! 17 sys.stderr.write("The options are:\n")
18 group.add_argument('-d', help='Show delta of D !! 18 sys.stderr.write("-c categorize output based on symbol type\n")
19 group.add_argument('-t', help='Show delta of t !! 19 sys.stderr.write("-d Show delta of Data Section\n")
20 parser.add_argument('-p', dest='prefix', help= !! 20 sys.stderr.write("-t Show delta of text Section\n")
21 parser.add_argument('file1', help='First file !! 21 sys.exit(-1)
22 parser.add_argument('file2', help='Second file <<
23 <<
24 args = parser.parse_args() <<
25 22
26 re_NUMBER = re.compile(r'\.[0-9]+') 23 re_NUMBER = re.compile(r'\.[0-9]+')
27 24
28 def getsizes(file, format): 25 def getsizes(file, format):
29 sym = {} 26 sym = {}
30 nm = "nm" !! 27 with os.popen("nm --size-sort " + file) as f:
31 if args.prefix: <<
32 nm = "{}nm".format(args.prefix) <<
33 <<
34 with os.popen("{} --size-sort {}".format(n <<
35 for line in f: 28 for line in f:
36 if line.startswith("\n") or ":" in 29 if line.startswith("\n") or ":" in line:
37 continue 30 continue
38 size, type, name = line.split() 31 size, type, name = line.split()
39 if type in format: 32 if type in format:
40 # strip generated symbols 33 # strip generated symbols
41 if name.startswith("__mod_"): 34 if name.startswith("__mod_"): continue
42 if name.startswith("__se_sys") 35 if name.startswith("__se_sys"): continue
43 if name.startswith("__se_compa 36 if name.startswith("__se_compat_sys"): continue
44 if name.startswith("__addressa 37 if name.startswith("__addressable_"): continue
45 if name == "linux_banner": con 38 if name == "linux_banner": continue
46 if name == "vermagic": continu <<
47 # statics and some other optim 39 # statics and some other optimizations adds random .NUMBER
48 name = re_NUMBER.sub('', name) 40 name = re_NUMBER.sub('', name)
49 sym[name] = sym.get(name, 0) + 41 sym[name] = sym.get(name, 0) + int(size, 16)
50 return sym 42 return sym
51 43
52 def calc(oldfile, newfile, format): 44 def calc(oldfile, newfile, format):
53 old = getsizes(oldfile, format) 45 old = getsizes(oldfile, format)
54 new = getsizes(newfile, format) 46 new = getsizes(newfile, format)
55 grow, shrink, add, remove, up, down = 0, 0 47 grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
56 delta, common = [], {} 48 delta, common = [], {}
57 otot, ntot = 0, 0 49 otot, ntot = 0, 0
58 50
59 for a in old: 51 for a in old:
60 if a in new: 52 if a in new:
61 common[a] = 1 53 common[a] = 1
62 54
63 for name in old: 55 for name in old:
64 otot += old[name] 56 otot += old[name]
65 if name not in common: 57 if name not in common:
66 remove += 1 58 remove += 1
67 down += old[name] 59 down += old[name]
68 delta.append((-old[name], name)) 60 delta.append((-old[name], name))
69 61
70 for name in new: 62 for name in new:
71 ntot += new[name] 63 ntot += new[name]
72 if name not in common: 64 if name not in common:
73 add += 1 65 add += 1
74 up += new[name] 66 up += new[name]
75 delta.append((new[name], name)) 67 delta.append((new[name], name))
76 68
77 for name in common: 69 for name in common:
78 d = new.get(name, 0) - old.get(name, 0 70 d = new.get(name, 0) - old.get(name, 0)
79 if d>0: grow, up = grow+1, up+d 71 if d>0: grow, up = grow+1, up+d
80 if d<0: shrink, down = shrink+1, down- 72 if d<0: shrink, down = shrink+1, down-d
81 delta.append((d, name)) 73 delta.append((d, name))
82 74
83 delta.sort(reverse=True) !! 75 delta.sort()
>> 76 delta.reverse()
84 return grow, shrink, add, remove, up, down 77 return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot
85 78
86 def print_result(symboltype, symbolformat): !! 79 def print_result(symboltype, symbolformat, argc):
87 grow, shrink, add, remove, up, down, delta 80 grow, shrink, add, remove, up, down, delta, old, new, otot, ntot = \
88 calc(args.file1, args.file2, symbolformat) !! 81 calc(sys.argv[argc - 1], sys.argv[argc], symbolformat)
89 82
90 print("add/remove: %s/%s grow/shrink: %s/% 83 print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
91 (add, remove, grow, shrink, up, -dow 84 (add, remove, grow, shrink, up, -down, up-down))
92 print("%-40s %7s %7s %+7s" % (symboltype, 85 print("%-40s %7s %7s %+7s" % (symboltype, "old", "new", "delta"))
93 for d, n in delta: 86 for d, n in delta:
94 if d: print("%-40s %7s %7s %+7d" % (n, 87 if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
95 88
96 if otot: 89 if otot:
97 percent = (ntot - otot) * 100.0 / otot 90 percent = (ntot - otot) * 100.0 / otot
98 else: 91 else:
99 percent = 0 92 percent = 0
100 print("Total: Before=%d, After=%d, chg %+. 93 print("Total: Before=%d, After=%d, chg %+.2f%%" % (otot, ntot, percent))
101 94
102 if args.c: !! 95 if sys.argv[1] == "-c":
103 print_result("Function", "tTwW") !! 96 print_result("Function", "tT", 3)
104 print_result("Data", "dDbBvV") !! 97 print_result("Data", "dDbB", 3)
105 print_result("RO Data", "rR") !! 98 print_result("RO Data", "rR", 3)
106 elif args.d: !! 99 elif sys.argv[1] == "-d":
107 print_result("Data", "dDbBrRvV") !! 100 print_result("Data", "dDbBrR", 3)
108 elif args.t: !! 101 elif sys.argv[1] == "-t":
109 print_result("Function", "tTwW") !! 102 print_result("Function", "tT", 3)
110 else: 103 else:
111 print_result("Function", "tTdDbBrRvVwW") !! 104 print_result("Function", "tTdDbBrR", 2)
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