# stackcollapse.py - format perf samples with one line per distinct call stack
#
# This script's output has two space-separated fields.  The first is a semicolon
# separated stack including the program name (from the "comm" field) and the
# function names from the call stack.  The second is a count:
#
#  swapper;start_kernel;rest_init;cpu_idle;default_idle;native_safe_halt 2
#
# The file is sorted according to the first field.
#
# Input may be created and processed using:
#
#  perf record -a -g -F 99 sleep 60
#  perf script report stackcollapse > out.stacks-folded
#
# (perf script record stackcollapse works too).
#
# Written by Paolo Bonzini <pbonzini@redhat.com>
# Based on Brendan Gregg's stackcollapse-perf.pl script.

import os
import sys
from collections import defaultdict
from optparse import OptionParser, make_option

sys.path.append(os.environ['PERF_EXEC_PATH'] + \
                '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')

from perf_trace_context import *
from Core import *
from EventClass import *

# command line parsing

option_list = [
    # formatting options for the bottom entry of the stack
    make_option("--include-tid", dest="include_tid",
                 action="store_true", default=False,
                 help="include thread id in stack"),
    make_option("--include-pid", dest="include_pid",
                 action="store_true", default=False,
                 help="include process id in stack"),
    make_option("--no-comm", dest="include_comm",
                 action="store_false", default=True,
                 help="do not separate stacks according to comm"),
    make_option("--tidy-java", dest="tidy_java",
                 action="store_true", default=False,
                 help="beautify Java signatures"),
    make_option("--kernel", dest="annotate_kernel",
                 action="store_true", default=False,
                 help="annotate kernel functions with _[k]")
]

parser = OptionParser(option_list=option_list)
(opts, args) = parser.parse_args()

if len(args) != 0:
    parser.error("unexpected command line argument")
if opts.include_tid and not opts.include_comm:
    parser.error("requesting tid but not comm is invalid")
if opts.include_pid and not opts.include_comm:
    parser.error("requesting pid but not comm is invalid")

# event handlers

lines = defaultdict(lambda: 0)

def process_event(param_dict):
    def tidy_function_name(sym, dso):
        if sym is None:
            sym = '[unknown]'

        sym = sym.replace(';', ':')
        if opts.tidy_java:
            # the original stackcollapse-perf.pl script gives the
            # example of converting this:
            #    Lorg/mozilla/javascript/MemberBox;.<init>(Ljava/lang/reflect/Method;)V
            # to this:
            #    org/mozilla/javascript/MemberBox:.init
            sym = sym.replace('<', '')
            sym = sym.replace('>', '')
            if sym[0] == 'L' and sym.find('/'):
                sym = sym[1:]
            try:
                sym = sym[:sym.index('(')]
            except ValueError:
                pass

        if opts.annotate_kernel and dso == '[kernel.kallsyms]':
            return sym + '_[k]'
        else:
            return sym

    stack = list()
    if 'callchain' in param_dict:
        for entry in param_dict['callchain']:
            entry.setdefault('sym', dict())
            entry['sym'].setdefault('name', None)
            entry.setdefault('dso', None)
            stack.append(tidy_function_name(entry['sym']['name'],
                                            entry['dso']))
    else:
        param_dict.setdefault('symbol', None)
        param_dict.setdefault('dso', None)
        stack.append(tidy_function_name(param_dict['symbol'],
                                        param_dict['dso']))

    if opts.include_comm:
        comm = param_dict["comm"].replace(' ', '_')
        sep = "-"
        if opts.include_pid:
            comm = comm + sep + str(param_dict['sample']['pid'])
            sep = "/"
        if opts.include_tid:
            comm = comm + sep + str(param_dict['sample']['tid'])
        stack.append(comm)

    stack_string = ';'.join(reversed(stack))
    lines[stack_string] = lines[stack_string] + 1

def trace_end():
    list = lines.keys()
    list.sort()
    for stack in list:
        print "%s %d" % (stack, lines[stack])
ux.org.uk/cgit/git.armlinux.org.uk/linux-net-next.git/commit/?id=2d5d4b0a6da1271a7dfa9a7052870361e72ba424'/>
<id>2d5d4b0a6da1271a7dfa9a7052870361e72ba424</id>
<content type='text'>
When BIP is used to protect Beacon frames, the Timestamp field is masked
to zero. Otherwise, the BIP processing is identical to the way it was
already used with group-addressed Robust Management frames.

Signed-off-by: Jouni Malinen &lt;jouni@codeaurora.org&gt;
Link: https://lore.kernel.org/r/20200222132548.20835-4-jouni@codeaurora.org
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When BIP is used to protect Beacon frames, the Timestamp field is masked
to zero. Otherwise, the BIP processing is identical to the way it was
already used with group-addressed Robust Management frames.

Signed-off-by: Jouni Malinen &lt;jouni@codeaurora.org&gt;
Link: https://lore.kernel.org/r/20200222132548.20835-4-jouni@codeaurora.org
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>mac80211: Support BIGTK configuration for Beacon protection</title>
<updated>2020-02-24T09:35:57+00:00</updated>
<author>
<name>Jouni Malinen</name>
<email>jouni@codeaurora.org</email>
</author>
<published>2020-02-22T13:25:44+00:00</published>
<link rel='alternate' type='text/html' href='http://git.arm.linux.org.uk/cgit/git.armlinux.org.uk/linux-net-next.git/commit/?id=e5473e80d46767ebc64dac4958f30299a3b14b1b'/>
<id>e5473e80d46767ebc64dac4958f30299a3b14b1b</id>
<content type='text'>
Extend mac80211 key configuration to support the new BIGTK with key
index values 6 and 7. Support for actually protecting Beacon frames
(adding the MME in AP mode and checking it in STA mode) is covered in
separate commits.

Signed-off-by: Jouni Malinen &lt;jouni@codeaurora.org&gt;
Link: https://lore.kernel.org/r/20200222132548.20835-3-jouni@codeaurora.org
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Extend mac80211 key configuration to support the new BIGTK with key
index values 6 and 7. Support for actually protecting Beacon frames
(adding the MME in AP mode and checking it in STA mode) is covered in
separate commits.

Signed-off-by: Jouni Malinen &lt;jouni@codeaurora.org&gt;
Link: https://lore.kernel.org/r/20200222132548.20835-3-jouni@codeaurora.org
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "nl80211: add src and dst addr attributes for control port tx/rx"</title>
<updated>2020-02-24T09:22:02+00:00</updated>
<author>
<name>Johannes Berg</name>
<email>johannes.berg@intel.com</email>
</author>
<published>2020-02-24T09:19:12+00:00</published>
<link rel='alternate' type='text/html' href='http://git.arm.linux.org.uk/cgit/git.armlinux.org.uk/linux-net-next.git/commit/?id=8d74a623cc3cecda89da628b8f3d115d8cf1ee8f'/>
<id>8d74a623cc3cecda89da628b8f3d115d8cf1ee8f</id>
<content type='text'>
This reverts commit 8c3ed7aa2b9ef666195b789e9b02e28383243fa8.

As Jouni points out, there's really no need for this, since the
RSN pre-authentication frames are normal data frames, not port
control frames (locally).

We can still revert this now since it hasn't actually gone beyond
-next.

Fixes: 8c3ed7aa2b9e ("nl80211: add src and dst addr attributes for control port tx/rx")
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
Link: https://lore.kernel.org/r/20200224101910.b746e263287a.I9eb15d6895515179d50964dec3550c9dc784bb93@changeid
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit 8c3ed7aa2b9ef666195b789e9b02e28383243fa8.

As Jouni points out, there's really no need for this, since the
RSN pre-authentication frames are normal data frames, not port
control frames (locally).

We can still revert this now since it hasn't actually gone beyond
-next.

Fixes: 8c3ed7aa2b9e ("nl80211: add src and dst addr attributes for control port tx/rx")
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
Link: https://lore.kernel.org/r/20200224101910.b746e263287a.I9eb15d6895515179d50964dec3550c9dc784bb93@changeid
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "mac80211: support NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS"</title>
<updated>2020-02-24T09:21:52+00:00</updated>
<author>
<name>Johannes Berg</name>
<email>johannes.berg@intel.com</email>
</author>
<published>2020-02-24T09:19:11+00:00</published>
<link rel='alternate' type='text/html' href='http://git.arm.linux.org.uk/cgit/git.armlinux.org.uk/linux-net-next.git/commit/?id=8079e4fee5639cc01374cc2d2ea3f952598896b4'/>
<id>8079e4fee5639cc01374cc2d2ea3f952598896b4</id>
<content type='text'>
This reverts commit 9b125c27998719288e4dcf2faf54511039526692.

As Jouni points out, there's really no need for this, since the
RSN pre-authentication frames are normal data frames, not port
control frames (locally).

Fixes: 9b125c279987 ("mac80211: support NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS")
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
Link: https://lore.kernel.org/r/20200224101910.b87da63a3cd6.Ic94bc51a370c4aa7d19fbca9b96d90ab703257dc@changeid
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit 9b125c27998719288e4dcf2faf54511039526692.

As Jouni points out, there's really no need for this, since the
RSN pre-authentication frames are normal data frames, not port
control frames (locally).

Fixes: 9b125c279987 ("mac80211: support NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS")
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
Link: https://lore.kernel.org/r/20200224101910.b87da63a3cd6.Ic94bc51a370c4aa7d19fbca9b96d90ab703257dc@changeid
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cfg80211: remove support for adjacent channel compensation</title>
<updated>2020-02-21T19:00:39+00:00</updated>
<author>
<name>Emmanuel Grumbach</name>
<email>emmanuel.grumbach@intel.com</email>
</author>
<published>2020-02-14T22:23:38+00:00</published>
<link rel='alternate' type='text/html' href='http://git.arm.linux.org.uk/cgit/git.armlinux.org.uk/linux-net-next.git/commit/?id=7bb106eb689101dc56cc205d5fb4ecf5c0554348'/>
<id>7bb106eb689101dc56cc205d5fb4ecf5c0554348</id>
<content type='text'>
The only driver that used that was iwlwifi and it removed
support for this. Remove the feature here as well.

Signed-off-by: Emmanuel Grumbach &lt;emmanuel.grumbach@intel.com&gt;
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
Link: https://lore.kernel.org/r/20200214232336.a530de38e511.I393bc395f6037c8cca6421ed550e3072dc248aed@changeid
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The only driver that used that was iwlwifi and it removed
support for this. Remove the feature here as well.

Signed-off-by: Emmanuel Grumbach &lt;emmanuel.grumbach@intel.com&gt;
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
Link: https://lore.kernel.org/r/20200214232336.a530de38e511.I393bc395f6037c8cca6421ed550e3072dc248aed@changeid
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>mac80211: check vif pointer before airtime calculation</title>
<updated>2020-02-21T11:11:39+00:00</updated>
<author>
<name>Johannes Berg</name>
<email>johannes.berg@intel.com</email>
</author>
<published>2020-02-21T09:45:45+00:00</published>
<link rel='alternate' type='text/html' href='http://git.arm.linux.org.uk/cgit/git.armlinux.org.uk/linux-net-next.git/commit/?id=ca98c47d54d76d2c3f59f8f66530362562914b6b'/>
<id>ca98c47d54d76d2c3f59f8f66530362562914b6b</id>
<content type='text'>
In case of monitor mode injection, vif may be NULL, don't crash
on that in ieee80211_calc_expected_tx_airtime().

Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
Acked-by: Toke Høiland-Jørgensen &lt;toke@redhat.com&gt;
Link: https://lore.kernel.org/r/20200221104544.dddb7a3568fd.I0ede2733a3c76e95daeab07538449ea847e7b78d@changeid
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In case of monitor mode injection, vif may be NULL, don't crash
on that in ieee80211_calc_expected_tx_airtime().

Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
Acked-by: Toke Høiland-Jørgensen &lt;toke@redhat.com&gt;
Link: https://lore.kernel.org/r/20200221104544.dddb7a3568fd.I0ede2733a3c76e95daeab07538449ea847e7b78d@changeid
Signed-off-by: Johannes Berg &lt;johannes.berg@intel.com&gt;
</pre>
</div>
</content>
</entry>