blob: 4006f2f6f1260bcddd961e7fad580f8b4c6ec727 [file] [log] [blame]
Patrick Williamsc124f4f2015-09-15 14:41:29 -05001#!/usr/bin/env python
2#
3# Copyright (c) 2011, Intel Corporation.
4# All rights reserved.
5#
6# This program is free software; you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation; either version 2 of the License, or
9# (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program; if not, write to the Free Software
18# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19#
20#
21# Display details of the kernel build size, broken up by built-in.o. Sort
22# the objects by size. Run from the top level kernel build directory.
23#
24# Author: Darren Hart <dvhart@linux.intel.com>
25#
26
27import sys
28import getopt
29import os
30from subprocess import *
31from string import join
32
33
34def usage():
35 prog = os.path.basename(sys.argv[0])
36 print 'Usage: %s [OPTION]...' % (prog)
37 print ' -d, display an additional level of drivers detail'
38 print ' -h, --help display this help and exit'
39 print ''
40 print 'Run %s from the top-level Linux kernel build directory.' % (prog)
41
42
43class Sizes:
44 def __init__(self, glob):
45 self.title = glob
46 p = Popen("size -t " + glob, shell=True, stdout=PIPE, stderr=PIPE)
47 output = p.communicate()[0].splitlines()
48 if len(output) > 2:
49 sizes = output[-1].split()[0:4]
50 self.text = int(sizes[0])
51 self.data = int(sizes[1])
52 self.bss = int(sizes[2])
53 self.total = int(sizes[3])
54 else:
55 self.text = self.data = self.bss = self.total = 0
56
57 def show(self, indent=""):
58 print "%-32s %10d | %10d %10d %10d" % \
59 (indent+self.title, self.total, self.text, self.data, self.bss)
60
61
62class Report:
63 def create(filename, title, subglob=None):
64 r = Report(filename, title)
65 path = os.path.dirname(filename)
66
67 p = Popen("ls " + path + "/*.o | grep -v built-in.o",
68 shell=True, stdout=PIPE, stderr=PIPE)
69 glob = join(p.communicate()[0].splitlines())
70 oreport = Report(glob, path + "/*.o")
71 oreport.sizes.title = path + "/*.o"
72 r.parts.append(oreport)
73
74 if subglob:
75 p = Popen("ls " + subglob, shell=True, stdout=PIPE, stderr=PIPE)
76 for f in p.communicate()[0].splitlines():
77 path = os.path.dirname(f)
78 r.parts.append(Report.create(f, path, path + "/*/built-in.o"))
79 r.parts.sort(reverse=True)
80
81 for b in r.parts:
82 r.totals["total"] += b.sizes.total
83 r.totals["text"] += b.sizes.text
84 r.totals["data"] += b.sizes.data
85 r.totals["bss"] += b.sizes.bss
86
87 r.deltas["total"] = r.sizes.total - r.totals["total"]
88 r.deltas["text"] = r.sizes.text - r.totals["text"]
89 r.deltas["data"] = r.sizes.data - r.totals["data"]
90 r.deltas["bss"] = r.sizes.bss - r.totals["bss"]
91 return r
92 create = staticmethod(create)
93
94 def __init__(self, glob, title):
95 self.glob = glob
96 self.title = title
97 self.sizes = Sizes(glob)
98 self.parts = []
99 self.totals = {"total":0, "text":0, "data":0, "bss":0}
100 self.deltas = {"total":0, "text":0, "data":0, "bss":0}
101
102 def show(self, indent=""):
103 rule = str.ljust(indent, 80, '-')
104 print "%-32s %10s | %10s %10s %10s" % \
105 (indent+self.title, "total", "text", "data", "bss")
106 print rule
107 self.sizes.show(indent)
108 print rule
109 for p in self.parts:
110 if p.sizes.total > 0:
111 p.sizes.show(indent)
112 print rule
113 print "%-32s %10d | %10d %10d %10d" % \
114 (indent+"sum", self.totals["total"], self.totals["text"],
115 self.totals["data"], self.totals["bss"])
116 print "%-32s %10d | %10d %10d %10d" % \
117 (indent+"delta", self.deltas["total"], self.deltas["text"],
118 self.deltas["data"], self.deltas["bss"])
119 print "\n"
120
121 def __cmp__(this, that):
122 if that is None:
123 return 1
124 if not isinstance(that, Report):
125 raise TypeError
126 if this.sizes.total < that.sizes.total:
127 return -1
128 if this.sizes.total > that.sizes.total:
129 return 1
130 return 0
131
132
133def main():
134 try:
135 opts, args = getopt.getopt(sys.argv[1:], "dh", ["help"])
136 except getopt.GetoptError, err:
137 print '%s' % str(err)
138 usage()
139 sys.exit(2)
140
141 driver_detail = False
142 for o, a in opts:
143 if o == '-d':
144 driver_detail = True
145 elif o in ('-h', '--help'):
146 usage()
147 sys.exit(0)
148 else:
149 assert False, "unhandled option"
150
151 glob = "arch/*/built-in.o */built-in.o"
152 vmlinux = Report.create("vmlinux", "Linux Kernel", glob)
153
154 vmlinux.show()
155 for b in vmlinux.parts:
156 if b.totals["total"] > 0 and len(b.parts) > 1:
157 b.show()
158 if b.title == "drivers" and driver_detail:
159 for d in b.parts:
160 if d.totals["total"] > 0 and len(d.parts) > 1:
161 d.show(" ")
162
163
164if __name__ == "__main__":
165 main()