A modern Music Player Daemon based on Rockbox open source high quality audio player
tsiry-sandratraina.com
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1#!/usr/bin/python
2import sys
3from subprocess import Popen, PIPE
4
5if len(sys.argv) != 3:
6 print ("""%s usage:
7 %s obj1 obj2
8 Calculate per-symbol and total size differences between obj1 and obj2,
9 which may be any files that nm can read""" % ((sys.argv[0],)*2))
10 sys.exit(2)
11
12obj1 = sys.argv[1]
13obj2 = sys.argv[2]
14
15def getsyms(obj):
16 proc = Popen(args=['nm', '-S', '-t', 'd', obj], stdout=PIPE, stderr=PIPE)
17 out, err = proc.communicate()
18 if err:
19 print ("nm reported an error:\n")
20 print (err)
21 sys.exit(1)
22 d = {}
23 for l in out.splitlines():
24 l = l.strip().split()
25 if len(l) == 4:
26 d[l[3]] = int(l[1])
27 return d
28
29diff = 0
30
31d1 = getsyms(obj1)
32d2 = getsyms(obj2)
33l = [(k,v) for k,v in sorted(d1.items()) if k not in d2]
34if l:
35 print ("only in %s" % obj1)
36 print (''.join(" %6d %s\n" % (v,k)) for k,v in l)
37 diff -= sum(v for k,v in l)
38
39l = [(k,v) for k,v in sorted(d2.items()) if k not in d1]
40if l:
41 print ("only in %s" % obj2)
42 print (''.join("%6d %s\n" % (v,k)) for k,v in l)
43 diff += sum(v for k,v in l)
44
45l = [(k,v,d2[k]) for k,v in sorted(d1.items()) if k in d2 and d2[k] != v]
46if l:
47 print ("different sizes in %s and %s:" %(obj1, obj2))
48 print (''.join(" %6d %6d %s\n" % (v1,v2,k)) for k,v1,v2 in l)
49 diff += sum(v2-v1 for k,v1,v2 in l)
50
51if diff:
52 print ("total size difference: %+d" % diff)
53else:
54 print ("total size difference: 0")