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- #!/usr/bin/env python3
- #
- # Copyright (c) 2011, Intel Corporation.
- #
- # SPDX-License-Identifier: GPL-2.0-or-later
- #
- # Display details of the kernel build size, broken up by built-in.[o,a]. Sort
- # the objects by size. Run from the top level kernel build directory.
- #
- # Author: Darren Hart <dvhart@linux.intel.com>
- #
- import sys
- import getopt
- import os
- from subprocess import *
- def usage():
- prog = os.path.basename(sys.argv[0])
- print('Usage: %s [OPTION]...' % prog)
- print(' -d, display an additional level of drivers detail')
- print(' -h, --help display this help and exit')
- print('')
- print('Run %s from the top-level Linux kernel build directory.' % prog)
- class Sizes:
- def __init__(self, glob):
- self.title = glob
- p = Popen("size -t " + str(glob), shell=True, stdout=PIPE, stderr=PIPE, universal_newlines=True)
- output = p.communicate()[0].splitlines()
- if len(output) > 2:
- sizes = output[-1].split()[0:4]
- self.text = int(sizes[0])
- self.data = int(sizes[1])
- self.bss = int(sizes[2])
- self.total = int(sizes[3])
- else:
- self.text = self.data = self.bss = self.total = 0
- def show(self, indent=""):
- print("%-32s %10d | %10d %10d %10d" % \
- (indent+self.title, self.total, self.text, self.data, self.bss))
- class Report:
- def create(filename, title, subglob=None):
- r = Report(filename, title)
- path = os.path.dirname(filename)
- p = Popen("ls " + str(path) + "/*.o | grep -v built-in.o",
- shell=True, stdout=PIPE, stderr=PIPE, universal_newlines=True)
- glob = ' '.join(p.communicate()[0].splitlines())
- oreport = Report(glob, str(path) + "/*.o")
- oreport.sizes.title = str(path) + "/*.o"
- r.parts.append(oreport)
- if subglob:
- p = Popen("ls " + subglob, shell=True, stdout=PIPE, stderr=PIPE, universal_newlines=True)
- for f in p.communicate()[0].splitlines():
- path = os.path.dirname(f)
- r.parts.append(Report.create(f, path, str(path) + "/*/built-in.[o,a]"))
- r.parts.sort(reverse=True)
- for b in r.parts:
- r.totals["total"] += b.sizes.total
- r.totals["text"] += b.sizes.text
- r.totals["data"] += b.sizes.data
- r.totals["bss"] += b.sizes.bss
- r.deltas["total"] = r.sizes.total - r.totals["total"]
- r.deltas["text"] = r.sizes.text - r.totals["text"]
- r.deltas["data"] = r.sizes.data - r.totals["data"]
- r.deltas["bss"] = r.sizes.bss - r.totals["bss"]
- return r
- create = staticmethod(create)
- def __init__(self, glob, title):
- self.glob = glob
- self.title = title
- self.sizes = Sizes(glob)
- self.parts = []
- self.totals = {"total":0, "text":0, "data":0, "bss":0}
- self.deltas = {"total":0, "text":0, "data":0, "bss":0}
- def show(self, indent=""):
- rule = str.ljust(indent, 80, '-')
- print("%-32s %10s | %10s %10s %10s" % \
- (indent+self.title, "total", "text", "data", "bss"))
- print(rule)
- self.sizes.show(indent)
- print(rule)
- for p in self.parts:
- if p.sizes.total > 0:
- p.sizes.show(indent)
- print(rule)
- print("%-32s %10d | %10d %10d %10d" % \
- (indent+"sum", self.totals["total"], self.totals["text"],
- self.totals["data"], self.totals["bss"]))
- print("%-32s %10d | %10d %10d %10d" % \
- (indent+"delta", self.deltas["total"], self.deltas["text"],
- self.deltas["data"], self.deltas["bss"]))
- print("\n")
- def __lt__(this, that):
- if that is None:
- return 1
- if not isinstance(that, Report):
- raise TypeError
- return this.sizes.total < that.sizes.total
- def __cmp__(this, that):
- if that is None:
- return 1
- if not isinstance(that, Report):
- raise TypeError
- if this.sizes.total < that.sizes.total:
- return -1
- if this.sizes.total > that.sizes.total:
- return 1
- return 0
- def main():
- try:
- opts, args = getopt.getopt(sys.argv[1:], "dh", ["help"])
- except getopt.GetoptError as err:
- print('%s' % str(err))
- usage()
- sys.exit(2)
- driver_detail = False
- for o, a in opts:
- if o == '-d':
- driver_detail = True
- elif o in ('-h', '--help'):
- usage()
- sys.exit(0)
- else:
- assert False, "unhandled option"
- glob = "arch/*/built-in.[o,a] */built-in.[o,a]"
- vmlinux = Report.create("vmlinux", "Linux Kernel", glob)
- vmlinux.show()
- for b in vmlinux.parts:
- if b.totals["total"] > 0 and len(b.parts) > 1:
- b.show()
- if b.title == "drivers" and driver_detail:
- for d in b.parts:
- if d.totals["total"] > 0 and len(d.parts) > 1:
- d.show(" ")
- if __name__ == "__main__":
- main()
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