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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-07-12 17:47:01 -0400 | 
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-07-12 17:47:01 -0400 | 
| commit | c2330e286f68f1c408b4aa6515ba49d57f05beae (patch) | |
| tree | f981251a3fa0a9a31668e5eac0a76281e9d55ba2 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 7e48c02829ad6a824775a78bf100acbcbac2871f (diff) | |
| parent | 07a8c03f3e06129e847acd068b8b89c13357ee64 (diff) | |
Merge branch 'arm/defconfig/reduced-v2.6.35-rc1' of git://git.pengutronix.de/git/ukl/linux-2.6
* 'arm/defconfig/reduced-v2.6.35-rc1' of git://git.pengutronix.de/git/ukl/linux-2.6:
  ARM: reduce defconfigs
This is a big change, but results in no loss of information, despite us
losing almost 200k lines:
 177 files changed, 652 insertions(+), 194157 deletions(-)
and Grant Likely thinks powerpc can also use the same reduction
technique.
The python script that did the reduction looks like this:
    #! /usr/bin/env python
    # vim: set fileencoding=utf-8 :
    # Copyright (C) 2010 by Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
    import re
    import subprocess
    import os
    import sys
    # This prevents including a timestamp in the .config which makes comparing a
    # bit easier.
    os.environ['KCONFIG_NOTIMESTAMP'] = 'Yes, please'
    # XXX: get these using getopt
    kernel_tree = '' # os.path.join(os.environ['HOME'], 'gsrc', 'linux-2.6')
    arch = 'arm'
    target = sys.argv[1]
    defconfig_src = os.path.join(kernel_tree, 'arch/%s/configs/%s' % (arch, target))
    subprocess.check_call(['make', '-s', 'ARCH=%s' % arch, target])
    origconfig = list(open('.config'))
    config = list(origconfig)
    config_size = os.stat('.config').st_size
    i = 0
    while i < len(config):
        print 'test for %r' % config[i]
        defconfig = open(defconfig_src, 'w')
        defconfig.writelines(config[:i])
        defconfig.writelines(config[i + 1:])
        defconfig.close()
        subprocess.check_call(['make', '-s', 'ARCH=%s' % arch, target])
        if os.stat('.config').st_size == config_size and list(open('.config')) == origconfig:
            del config[i]
        else:
            i += 1
    defconfig = open(defconfig_src, 'w')
    defconfig.writelines(config)
    defconfig.close()
which is pretty self-explanatory.
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions
