#!/usr/bin/python
#
# Copyright 2004 Matt Mackall <mpm@selenic.com>
#
# inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.

import sys, os, re
from signal import signal, SIGPIPE, SIG_DFL

signal(SIGPIPE, SIG_DFL)

if len(sys.argv) != 3:
    sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])
    sys.exit(-1)

re_NUMBER = re.compile(r'\.[0-9]+')

def getsizes(file):
    sym = {}
    with os.popen("nm --size-sort " + file) as f:
        for line in f:
            size, type, name = line.split()
            if type in "tTdDbBrR":
                # strip generated symbols
                if name.startswith("__mod_"): continue
                if name.startswith("SyS_"): continue
                if name.startswith("compat_SyS_"): continue
                if name == "linux_banner": continue
                # statics and some other optimizations adds random .NUMBER
                name = re_NUMBER.sub('', name)
                sym[name] = sym.get(name, 0) + int(size, 16)
    return sym

old = getsizes(sys.argv[1])
new = getsizes(sys.argv[2])
grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
delta, common = [], {}
otot, ntot = 0, 0

for a in old:
    if a in new:
        common[a] = 1

for name in old:
    otot += old[name]
    if name not in common:
        remove += 1
        down += old[name]
        delta.append((-old[name], name))

for name in new:
    ntot += new[name]
    if name not in common:
        add += 1
        up += new[name]
        delta.append((new[name], name))

for name in common:
        d = new.get(name, 0) - old.get(name, 0)
        if d>0: grow, up = grow+1, up+d
        if d<0: shrink, down = shrink+1, down-d
        delta.append((d, name))

delta.sort()
delta.reverse()

print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
      (add, remove, grow, shrink, up, -down, up-down))
print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta"))
for d, n in delta:
    if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))

print("Total: Before=%d, After=%d, chg %+.2f%%" % \
    (otot, ntot, (ntot - otot)*100.0/otot))
it.cgi/linux/net-next.git/log/net/ipv4/udp.c'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='79c9089f97d37ffac88c3ddb6d359b2cf75058b7'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=79c9089f97d37ffac88c3ddb6d359b2cf75058b7'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?h=nds-private-remove&amp;id=79c9089f97d37ffac88c3ddb6d359b2cf75058b7'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4?h=nds-private-remove&amp;id=79c9089f97d37ffac88c3ddb6d359b2cf75058b7'>ipv4</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4/udp.c?h=nds-private-remove&amp;id=79c9089f97d37ffac88c3ddb6d359b2cf75058b7'>udp.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4/udp.c?h=nds-private-remove&amp;id=79c9089f97d37ffac88c3ddb6d359b2cf75058b7&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>