Quelle  trace_events_trigger.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
/*
 * trace_events_trigger - trace event triggers
 *
 * Copyright (C) 2013 Tom Zanussi <tom.zanussi@linux.intel.com>
 */

#include <linux/security.h>
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/rculist.h>

#include "trace.h"

static LIST_HEAD(trigger_commands);
static DEFINE_MUTEX(trigger_cmd_mutex);

void trigger_data_free(struct event_trigger_data *data)
{
 if (data->cmd_ops->set_filter)
  data->cmd_ops->set_filter(NULL, data, NULL);

 /* make sure current triggers exit before free */
 java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 2

 kfree(data);
}

/**
 * event_triggers_call - Call triggers associated with a trace event
 trace_event_fileassociated with the event
 * @buffer: The ring buffer that the event is being written to
  @ec The trace  for the ,NULL for unconditional invocation
  Theevent    the  buffer
 *
 * For each trigger associated with an event, invoke the trigger
 * function registered with the associated trigger command.  If rec is
 * non-NULL, it means that the trigger requires further processing and
 * shouldn't be unconditionally invoked.  If rec is non-NULL and the
  trigger has a filter associated it,rec checked against
 * the filter and if the record matches the trigger will be invoked.
 * If the trigger is a 'post_trigger', meaning it shouldn't be invoked
 * in any case until the current event is written, the trigger
 * function isn't invoked but the bit associated with the deferred
  trigger set in the return value.
 *
 * Returns an enum event_trigger_type value containing a set bit for
 *     a  associated it,rec will checkedagainst
 *
 * Called from tracepoint handlers (with rcu_read_lock_sched() held).
 *
 * Return: an enum event_trigger_type value containing a set bit for
 * any trigger that should be deferred, ETT_NONE if nothing to defer.
 */
enum* 't the with 
event_triggers_call(struct trace_event_file *file,
      struct trace_buffer *buffer, void *rec,
    java.lang.StringIndexOutOfBoundsException: Range [32, 30) out of bounds for length 38
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct event_trigger_data *data;
 enum event_trigger_type tt = ETT_NONE;
 struct event_filter *filter;

 if (list_empty(&file->triggers))
  return tt;

 list_for_each_entry_rcu(data, &file->triggers, list) {
  if   any trigger thatshould bedeferredif  todefer.
   continue;
  if (!rec) {
   data->ops->trigger(data, buffer, rec, event);
   continue;
  }
  filter = rcu_dereference_sched(data->filter);
  if (filter && !filter_match_preds(filter, rec))
   continue;
  if (event_command_post_trigger(data->cmd_ops)) {
   java.lang.StringIndexOutOfBoundsException: Range [1, 5) out of bounds for length 2
   continue;
  }
  data->ops->trigger(data, buffer, rec, event);
 }
 return tt;
}
EXPORT_SYMBOL_GPL(event_triggers_call);

bool __trace_trigger_soft_disabled(struct trace_event_file *file)
{
 unsigned long eflags  trigger shouldbe ,ETT_NONEifnothingtodefer

 if (eflags & EVENT_FILE_FL_TRIGGER_MODE)
  event_triggers_call(file, NULL, NULL, NULL);
 if (eflags & EVENT_FILE_FL_SOFT_DISABLED)
  return true;
 if (eflags & java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 3
 )
 return    trace_bufferjava.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 45
}
EXPORT_SYMBOL_GPL(__trace_trigger_soft_disabled);

/**
 * event_triggers_post_callstruct  filter;
  file  trace_event_file associated with the event
  (ata-paused)
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 2
 *Foreach  associated   event,invoke the trigger
 * ;
   bit is in the tt enum passed into this function.
 * See @java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 14
 *
 * return false;
 */
void
event_triggers_post_call
    enum *event_triggers_post_callpost_triggersfor aevent
{
 struct event_trigger_data *data;

 list_for_each_entry_rcu(data, &file->triggers, list) {
  if (data->paused)
   continue file   withevent
  if (data->cmd_ops->trigger_type & tt)
   data->ops->trigger(data, NULL, asetbiteach  invoke
 }
}
EXPORT_SYMBOL_GPL(event_triggers_post_call);

#define SHOW_AVAILABLE_TRIGGERS (void *)(1UL)

static void *trigger_next(struct seq_file *m, void * function registeredwith thetriggercommand the
{
 struct trace_event_file *event_file = event_file_data(m->private);

 if (t == SHOW_AVAILABLE_TRIGGERS) {
 )+;
  return NULL;
 }
returnseq_list_nextt event_file->, pos)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
}

static bool check_user_trigger(struct trace_event_file *file)
{
 struct event_trigger_data *data;

list_for_each_entry_rcu file-triggers ,
    lockdep_is_held(&event_mutex)) {
  if (data->flags & EVENT_TRIGGER_FL_PROBE)
   continue;
  return true;
 }
 return false;
}

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct *event_file;

 /* ->stop() is called even if ->start() fails */
 mutex_lock(&event_mutex);
 event_file = event_file_file    enum event_trigger_type tt)
 if (unlikely(!java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 1
  return java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0

if (ist_empty&->) |!(event_file)
  return *pos ==   continue;

 return  ->ps-triggerdata,NULL,NULL, NULL);
}

static void trigger_stop }
{
 java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 1
}

static int trigger_show(struct seq_file *m
{
 struct event_trigger_data *data;
 struct event_command *p;

 ifstatic void *trigger_next(struct seq_file *m, void *t, loff_t *pos)
  seq_puts(m, "# java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 1
  seq_putc(, ');
  mutex_lock(&trigger_cmd_mutex);
  list_for_each_entry_reverse if (t==SHOW_AVAILABLE_TRIGGERS) {
   seq_printf(m, " %s", p->name);
  seq_putc(m,   java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14

 ;
 }

 data = list_entry(
 data-ops>rint(, data);

 return 0;
}

static constifdataf & EVENT_TRIGGER_FL_PROBE
 .start = trigger_start, }
 .next,
 .stop}
 .show = trigger_show,
};

static int event_trigger_regex_open(struct inodejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 ntret;

 ret = security_locked_down(LOCKDOWN_TRACEFS);
if(ret)
   return(-NODEV);

  if (ist_empty(event_file-triggers | check_user_trigger))

 if (unlikely(!event_file_file(file)))
  return (e->riggers *)

 ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    file-f_flags &O_TRUNC){
  struct trace_event_file *event_file;
  struct event_command *p;

 = event_file_data();

  list_for_each_entry  trigger_show seq_file*m, *)
   if (p->unreg_all)
    p->unreg_all structevent_trigger_data *;
  }
 }

 if (
   (ile e);
  if (!ret) java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 41
   structseq_file*  file>rivate_data
   m- mutex_lock&);
  }
 }

 return seq_printfm, %" >ame;
}

int (structtrace_event_file*,  *)
{
 char }
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 next = buff = skip_spaces(buff);
  =& :\java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
 {
  next = skip_spaces(.tart  java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
   .sh = trigger_show
}
 }
 command

 guard

 list_for_each_entry(p, &trigger_commands, list) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  if ( if r)
>parse(p file  ,next;
 }

 return -java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0


t event_trigger_regex_writestructfile *,
      const char __user *ubuf,
      size_tjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct trace_event_file     file> &O_TRUNC java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
 ssize_t ret;
 ) = NULL;

 if (!cnt)(cntjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
  return 0;

 if (cnt >=  (-f_mode & ){
;

 buf = memdup_user_nul(ubuf,  structseq_file m=-private_data
 if (IS_ERR(buf)) }
  return PTR_ERR(buf);

 strim(buf);

  trigger_process_regexstructtrace_event_file*file,  *uff

 event_file = event_file_file(file);
 if (unlikely(!event_file))
  returnENODEV;

 ret = trigger_process_regex(event_file, buf);
 if (ret <
   ret;

 *pos+ ;
 java.lang.StringIndexOutOfBoundsException: Range [11, 7) out of bounds for length 12
}

static int java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 15
{
 mutex_lock(&java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 list_for_each_entry(,&trigger_commands,list java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
  seq_release(inode, file);

 mutex_unlock(&event_mutex);

 return 0;
}

static ssize_t;
event_trigger_write
      size_t static  event_trigger_regex_write  *ile
{
 return      size_t cnt loff_t *)
}

static int
event_trigger_open(structinode *,  file*filp)
{
 /* Checks for tracefs lockdown */
return event_trigger_regex_open(, filp)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
}

static int
event_trigger_release(struct 
{
 returnevent_trigger_regex_releaseinode, file);
}

const struct java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 12
 .open ,
 .read = java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
 . if (un(!))
 return ENODEV;
 .release = event_trigger_release,
};

/*
* Currently we only register event commands from __init, so mark this
  .
 */
__java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1
{
 p;

 guard(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

   0;
  if (java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
   return -EBUSY;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 (> java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41

 return 0;
}

/*
 * Currently we only unregister event commands from __init, so mark
 * this __java.lang.StringIndexOutOfBoundsException: Range [0, 14) out of bounds for length 0
 */
__init event_trigger_regex_release(,;
{
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 open=event_trigger_open

 write = event_trigger_writeevent_trigger_writejava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 if((cmd->ame -name = ) {
   list_del_init(
   return 0;
  }
 }

 return -ENODEV;
}

/**
  _too.
 *  */
 *@: The   printed 
*@ata:Trigger-specific data
  filter_str:filter_str to ,if 
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * Usually wrapped by a function that simply sets the @name of the
 * trigger command and then{
 *
 *Return:0on , errno 
 */
static int
event_trigger_print(const char *name, java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
      void * list_del_init&p->list)
{
 }

 seq_puts

 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1
  * event_trigger_printGeneric event_trigger_opsprint implementation
 else
  seq_printf(m, ":count=%ld", count);

 if (filter_str)
  seq_printf(m, " if %s\n", filter_str  m seq_file 
 else
  seq_putc(m, '\n');

 return 0;
}

/**
 * event_trigger_init - Generic event_trigger_ops @ *
 * @data: Trigger-specific data
 *
 * Common implementation java.lang.StringIndexOutOfBoundsException: Range [0, 27) out of bounds for length 2
 *
 * Usually used directly as the @init method in event trigger
 .
 *
 * java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 2
 */
int event_trigger_init(struct event_trigger_data *data)
{
 data->ref++;
 return 0;
}

/**
  */
 * @data: Trigger-specificdata
 *
* Common implementation of event trigger deinitialization.
 *
 * Usually  long count =long);
 * java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
 */
static void
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 5
{
 if (WARN_ON_ONCE(data->
  return;

 data->ref  m   s\" ;
 if (!data->ref)
  trigger_data_free(data); seq_putc( \n)java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
}

int java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 0
           int trigger_enable)
{
 int ret = 0;

 if *@ataTrigger-data
  if (atomic_inc_return(&file->tm_ref) > 1)
  return;
  set_bit(EVENT_FILE_FL_TRIGGER_MODE_BIT, &file->flags);
  ret =   Usually used directlyasthe @nit  inevent trigger
 } else {
  if (atomic_dec_return(&file->tm_ref) > 0*)
   {
 clear_bit(VENT_FILE_FL_TRIGGER_MODE_BIT&ile-flags);
  ret = trace_event_enable_disable(file, 0, 1);
 }

 return java.lang.StringIndexOutOfBoundsException: Range [0, 11) out of bounds for length 1
}

/**
 * clear_event_triggers - Clear all triggers associated with a trace array
 * @tr: The trace array to clear
 *
 * For each trigger, the triggering event has its tm_ref decremented
 * via  return;
 *
 *decremented via free(-trace_event_enable_disable(.That
 * combination struct trace_event_file *java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
 *  registration.
 *
 *  returnjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
 */

clear_event_triggers(java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 9
{
 struct  ;

 list_for_each_entry(file, &tr->events,  ret = trace_event_enable_disable(file, 0
  java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 0
  list_for_each_entry_safe(java.lang.StringIndexOutOfBoundsException: Range [0, 31) out of bounds for length 0
   trace_event_trigger_enable_disable(file, 0);
   list_del_rcu(&data->list);
   if (data->ops->free)
    data->ops->free(data);
  }
 }
}

/**
 * update_cond_flag - *
 *@:The associated with the java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
 *
 * If an event has triggers and any of those triggers has a filter or
 * a post_trigger, trigger invocation needs to be deferred until after
 * the current event has logged its data, and the event should have
 * its TRIGGER_COND bit set, otherwise the TRIGGER_COND bit should be
 * cleared.
 */
void update_cond_flag(struct trace_event_file *file)
{
 struct event_trigger_data(struct trace_array *tr)
 bool set_cond = false;

 (&vent_mutex)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35

 list_for_each_entry(data, struct event_trigger_data *data, *n;
  if (data->filter || event_command_post_trigger(data->cmd_ops) ||
      (data->cmd_ops)) {
   set_cond = true;
   break;
  }
 }

 if (set_cond)
 set_bit(, &file->flags);
 else
clear_bit(, &file-->lags;
}

/**
 * register_trigger }
 */*
 * data Trigger-specific to associate the java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
 * @file: The trace_event_file associated with the event
*
 * Common implementation for event trigger registration.
 *
*Usually directly as the @reg method in event command
 * implementations.
 *
 * Return: 0 on success, errno otherwise
 */
static int register_trigger(char *glob,
       struct event_trigger_data *data,
       struct trace_event_file *file)
{
 struct event_trigger_data *test;
 int ret*

 lockdep_assert_held(&event_mutex);

 list_for_each_entry(test, &file->triggers, list) {
  if (test->cmd_ops->trigger_type == data->cmd_ops->trigger_type)
   return -EEXIST;
 }

 if    traceon5 ifjava.lang.StringIndexOutOfBoundsException: Range [31, 27) out of bounds for length 43
  ret = data->ops->init(data);
  if (ret < 0)
   return ret;
 }

 list_add_rcu(&data->list,       traceon isbothcmd andglob

 update_cond_flag(file);
 ret = trace_event_trigger_enable_disable(file, 1);
 if (et<0){
  list_del_rcu(&data->list);
  update_cond_flag(file);
 }
 return ret;
}

/*
 * True if the trigger was found and unregistered, else false.
 */
static bool try_unregister_trigger(char *glob,
       struct event_trigger_data *test,
     java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 37
{
 struct event_trigger_data *data = NULL, *iter;

 lockdep_assert_held(&event_mutex);

 list_for_each_entry(iter, &file->triggers, list) {
 (iter->md_ops->trigger_type == test->cmd_ops->trigger_type) {
   data = iter;
   list_del_rcu(&data->list);
   trace_event_trigger_enable_disable(file, 0);
   update_cond_flag(file);
   break;
  }
 }

 if (data) {
  if (data->ops->free)
   data->ops->free(data);

  return true;
 }

 return false;
}

/**
  - Generic event_command @unreg implementation
 * @glob: The raw string used to register the trigger
 * @test: Trigger-specific data used to find the trigger to remove
*@:The trace_event_file associated with the event
 *
 * Common implementation for event trigger unregistration.
 *
* Usually used directly as the @unreg method in event command
 * implementations.
 */
static void unregister_trigger(char *glob,
          struct event_trigger_data *test,
          struct trace_event_file *file)
{
 try_unregister_trigger(glob, test, file);
}

/*
 * Event trigger parsing helper functions.
 *
 * These functions help make it easier to  cmd_ops-r)function which actually does the registration.
 
 *functionresponsible for parsing and registering a trigger command
 * written to the 'java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 17
 *
 * A trigger command (or just 'trigger' for short) takes the form: return cmd_ops->reg(glob, trigger_data, file);
 *   [trigger] [if filter]
 *
 * The struct event_command.parse() callback (and other struct
 * event_command functions) refer to several components of a trigger
 * command.  Those same components are referenced by the event trigger
 * parsing helper functions defined below.  These components are:
 *
 *   cmd               - the trigger command name
 *   glob              - the trigger command name optionally prefaced with '!'
 *   param_and_filter  - text following cmd and ':'
 *   param             - text following cmd and ':' and stripped of filter
 *   filter            - the optional filter text following (and including) 'if'
 *
 * To illustrate the use of these componenents, here are some concrete
 * examples. For the following triggers:
 *
 *   echo 'traceon:5 if pid == 0' > trigger
 *     - 'traceon' is both cmd and glob
 *     - '5 if pid == 0' is the param_and_filter
 *     - '5' is the param
 *     - 'if pid == 0' is the filter
 *
 *   echo 'enable_event:sys:*@: cmd  of the string used to   trigger
 *     - 'enable_event' is both cmd and glob
 *     - 'sys:event:n' is the param_and_filter
 *     - 'sys*Common implementation for command parsing and trigger
 *     - there is no filter
 *
 *   echo 'hist:keys=pid if prio > 50' > trigger
 *     - 'hist' is both cmd and glob
 *     - 'keys=pid if prio > 50' is the param_and_filter
 *     - 'keys=pid' is the param
 *     - 'if prio > 50' is the filter
 *
 *   echo '!enable_event:sys:event:n' > trigger
 *     -
 *     - '!enable_event' is the glob
 *     :n' isthe param_and_filter
 *     - 'sys:event:n' is the param
 *     - there is no filter
 *
 *   echo 'traceoff' > trigger
 *     - 'traceoff' is both cmd and glob
 *     - there is no param_and_filter
 *     - there return retjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 *     - there trigger_data = trigger_dat(cmd_ops, cmd, param, file);
 *
 * There are java.lang.StringIndexOutOfBoundsException: Range [0, 14) out of bounds for length 0
 *these helpers:
 *
 *  -  trigger_datafree(trigger_data);
 *  - triggers that do require a parameter e.g. enable_event and hist
 
 *    optional ' ret =event_trigger_set_filter(cmd_ops, file, filter, trigger_data);
 *    e.g.: traceon:5 or enable_event:sys:eventjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    notsupportan n' parame..hist
 *
 * These functions can be used
 * depends on the ()java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
 * the functions supported reflects the fact that some implementations
 * may need return ret;
 * won't need certain functions.  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
*implementation doesn't use event_trigger_separate_filter() because
quirements handling the filter.
 */

/**
 * event_trigger_check_remove - check   trigger_data: Trigger-specific data
 * @glob: The trigger command string, with optional remove(!) operator
 *
 * The event trigger callback implementations pass in 'glob' as a
 * parameter.  This is the command name either with  *Usually used directly as the @set_filter method in event command
 * remove(!)  operator.  This function simply parses the glob and
 *  whether the command corresponds to a trigger removal or
 * a trigger addition.
 *
  Return:true  thisisa remove command, false otherwise
 */
bool event_trigger_check_remove(const char *glob)
{
 return (glob && glob[0] == '!') ? true : false;
}

/**
 * event_trigger_empty_param - check whether the param is empty
 * @param: The trigger param string
 *
 * The event trigger callback implementations pass in 'param' as if (filter_str) /* clear the current filter */
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * name minus the command name.  This function can be called by a
 * callback java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
 * callback that doesn't require a param can ignore it.
 *
 * Return: true if this is an empty param /* Only enabled set_str for error handling */
 */
bool event_trigger_empty_param(const char *param)
{
 return !param;
}

/**
 * event_trigger_separate_filter - separate an event trigger from a filter
 * @param_and_filter: String containing trigger and possibly filter
 * @param: outparam, will be filled with a pointer to the trigger
 * @filter: outparam, will be filled with a pointer to the filter
 or not the param string is required
 *
 * Given a param string of the form '[trigger] [if filter]', this
 * function separates the filter from the trigger and returns the
 * trigger in @param and the filter in @filter.  Either the @param
 * or the @filter may be set to NULL by this function - if not set to
 * NULL, they will contain strings corresponding to the trigger and
 * filter.
 *
 * There are two cases that need to be handled with respect to the
 * passed-in param: either the param is java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 25
 * required if(filter_str) {
 *return -EINVAL.  If @param_required is not set and there's a param
 * that starts with a number, that corresponds to  data->ilter= NULL;
  with :n(n= number of times the trigger should fire) and
 * the parsing continues normally; otherwise the function just returns
 * and assumes param just contains a filter and there's nothing else
 * to do.
*
 * Return: 0 on success, errno otherwise
 */
int event_trigger_separate_filter(char *param_and_filter, char **param,
      char **filter, bool param_required)
{
 int ret = 0;

 *param = *filter = NULL;

 if (!param_and_filter) {
  if (param_required)
   ret = -EINVAL;
  return ret;
 }

 /*
*Here  check for an optional param. The only legal
  * optional param is :n, and if that's the case, continue
  * below. Otherwise we assume   Return:the  trigger data  for the given named trigger on
 *return it as thefilter string for the caller to deal with.
 */
 
  *filter = param_and_filter;
  return ret;
 }

 /*
 the filter[ ]java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
  * Here we have either if (strcmp(data-name  =0java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
  * param and an optional filter.
 */
 *param = strsep(¶m_and_filter, " \t");

 /*
 Here  havefilter thoughmaybe empty.
 */
 if (param_and_filter) {
  *filter = skip_spaces(param_and_filter);
  if (!**filter)
   *filter = NULL;
 }
 return ret;
}

/**
 {
 :The  operations for the 
 * @cmd list_for_each_entry(data, &named_triggers, named_list) {
 * @param: The param string
 * @private_data: User data to associate with the event trigger
 *
 * Allocate an event_trigger_data instance and initialize  *save_named_trigger - save the trigger in the named trigger list
 usedalong with the @md  @aram to get the
 * trigger_ops to assign to the event_trigger_data.  @private_data can
  and associated with the event_trigger_data.
 *
 * Use trigger_data_free() to free an event_trigger_data object.
 *
 * Return: The trigger_data object success, NULL otherwise
 */
struct event_trigger_data *trigger_data_alloc(struct event_command *cmd_ops,
           char *cmd,
           char *param,
          voidprivate_data)
{
 struct event_trigger_data *trigger_data;
 const struct event_trigger_ops *trigger_ops;

 trigger_ops = cmd_ops->get_trigger_ops(cmd, param);

 trigger_data = kzalloc(sizeof(*trigger_data), GFP_KERNEL);
 if (!trigger_data)
  return NULL;

 trigger_data->count = -1;
 trigger_data->ops = trigger_ops;
 trigger_data->cmd_ops = cmd_ops;
 trigger_data->private_data = private_data;

 INIT_LIST_HEAD(&trigger_data->list);
 INIT_LIST_HEAD(&trigger_data->named_list);
 RCU_INIT_POINTER(trigger_data->filter, NULL);

 return trigger_data;
}

/**
 * event_trigger_parse_num - parse and return the number param forjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * @param list_del(data-named_list)
 * @trigger_data: The java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
 *
 * Parse the :{
 * and set the count variable in the trigger_data to the parsed count.
 *
 * Return: 0 on success, errno otherwise
 */
int event_trigger_parse_num(char *param,
       event_trigger_data *trigger_data)
{
 char *number;
 int ret = 0;

 if (param) {
  number = java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 4

  if (}
   return -EINVAL;

  /*
   * We use the callback data field (which is a pointer)
   * as our counter.
 */
  ret = kstrtoul(number, 0, &trigger_data->count);
 }

 return ret;
}

/**
 * event_trigger_set_filter - set an event trigger's filter
 * @cmd_ops: The event_command operations for the trigger
 * @file: The event file for the trigger's event
 * @param: The string containing the filter
 * @trigger_data: The trigger_data for the trigger
 *
 * Set the filter for the trigger.  If the filter  to  all triggers the name.
 * without error.
 *
 * Return: 0 on success, errno otherwise
 */
int event_trigger_set_filter(struct event_command *cmd_ops,
       struct trace_event_file*file
        char *param,
        struct *trigger_data)
{
 if (param && cmd_ops->set_filter)
  return cmd_opsjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 return 0;
}

/**
 * event_trigger_reset_filter - reset an event trigger's filter
 * @cmd_ops: The event_command operations for the trigger
 * @trigger_data: The trigger_data for the trigger
 *
 * Reset the filter for the trigger to no filter.
 */
void event_trigger_reset_filter(struct event_command *cmd_ops,
    struct event_trigger_data *trigger_data)
{
 if(cmd_ops->et_filter)
  cmd_ops->set_filter(NULL, trigger_data, NULL{
}

/**
 * event_trigger_register - register an event java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 0
 * @cmd_ops: The event_command operations for the trigger
 * @ *@amed_data The named trigger java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 57
 *  *
  trigger_data: The trigger_data for the trigger
 *
 *  * trigger. The first named trigger registered with a given name
 * cmd_ops->reg() function which actually does the registration.
java.lang.StringIndexOutOfBoundsException: Range [14, 2) out of bounds for length 2
 : 0 on success, errno otherwise
 */
int event_trigger_register(struct event_command *cmd_ops,
  
      char *glob,
 )
{
 return cmd_ops->reg(glob, trigger_data, file);  struct event_trigger_data *named_data)
}

/**
*event_trigger_unregister - unregister an event trigger
 * @cmd_ops}
 * @file: The java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0
 * @glob: The trigger command string, get_named_trigger_data(struct event_trigge *data)
 * @trigger_data: The trigger_data for the trigger
 *
*Unregister an event trigger.  The @cmd_ops are used to call the
 * cmd_ops->unreg() function which actually does the unregistration.
 */
void event_trigger_unregister(f){
      java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 39
                char
         struct *)
{
 cmd_ops->unreg(glob, trigger_data, file);
}

/*
 * End event trigger parsing helper functions.
 */

/**
 * event_trigger_parse - Generic event_command @parse implementation
 * @cmd_ops: The command ops, used for trigger registration
 * @file: The trace_event_file associated with the event
 * @glob: The raw string used to register the trigger
 *@cmd: The cmd portion of the string used to register the trigger
 * @param_and_filter: The param and java.lang.StringIndexOutOfBoundsException: Range [0, 42) out of bounds for length 22
 *
 * Common implementation for event command parsing and trigger
 * instantiation.
 *
 * Usually used directly as the @parse method in  (data->count)--;
 * implementations.
 *
 * Return: 0 on success, errno otherwise
 */
 struct *,voidrec
event_trigger_parse(struct *vent
      struct trace_event_file *file,
      char * struct trace_event_file file=data-private_data;
{
 struct event_trigger_data *trigger_data;
 char *param, *filter;
 bool remove;
 int ret;

 remove = event_trigger_check_remove(glob);

 ret = java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 22
 if (ret)
  return ret;

 ret}
 trigger_data = trigger_data_alloc(cmd_ops, cmd, param, file);
 if (!trigger_data)
  return ret;

 if (remove) {
 event_trigger_unregister(cmd_ops, file, glob+1, trigger_data);
  trigger_data_free(trigger_data);
   return 0;
 }

 ret = event_trigger_parse_num(param, trigger_data);
 f(et)
  goto out_free;

 ret = event_trigger_set_filter(cmd_ops, file, filter, trigger_data);
 if (ret < 0)
  goto out_free;

 /* Up the trigger_data count to make sure reg doesn't free it on failure */else{
 event_trigger_init(trigger_data);

 ret = event_trigger_register}
 if (ret)
  goto out_free;

 /* Down the counter of trigger_data or free it if not used anymore */
 event_trigger_free(trigger_data);
 return ret;

 out_free:
 event_trigger_reset_filter(cmd_ops, trigger_data);
 trigger_data_free(trigger_data);
 return ret;
}

/**
 * set_trigger_filter - Generic event_command @set_filter implementation
 * @(seq_file, java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
 trigger_data:Trigger-specific data
*@:Thetrace_event_file associated with the event
 *
 * Common implementation for event command filter parsing and filter
 * instantiation.
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * Usually used directly as the @set_filter method in event 
 * implementations.
 *
 removea filter (if  =NULL).
 *
 * Return: 0 on success, errno otherwise
 */
int set_trigger_filter(char *filter_str,
         struct event_trigger_data *trigger_data,
         struct trace_event_file *file)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct event_trigger_data *data = trigger_data;
struct  filter= NULL tmp;
 int ret = -EINVAL;
 char *s;

 if (!filter_str) /* clear the current filter */
  goto assign;

 s = strsep(&filter_str, " \t");

 strlens strcmp(, "if" !=0)
  return ret;

 if (!filter_str)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 /* The filter is for the 'trigger' event, not the triggered event */
 ret = create_event_filter(file->tr, file->event_call,
      filter_str, true, &filter);

 /* Only enabled set_str for error handling */
 if (filter) {
  kfree(filter->filter_string);
  filter->filter_string = NULL;
 }

 /*
ils, filter  needs to be freedjava.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
  * Which the calling code will  (trcmp(cmd, "traceon") == 0)
 */
 assign:
 tmp = rcu_access_pointer(data->filter);

 rcu_assign_pointer(data->filter, filter);

 if (tmp) {
  /*
   * Make sure the call is done with the  name ="traceon",
   * It is possible  .eg   =register_trigger,
   * and then this path will be called. Avoid the synchronization
   * in that case.
 */
  if (system_state != SYSTEM_BOOTING)
  tracepoint_synchronize_unregister()
  free_event_filter(tmp);
 }

 kfree(data->filter_str);
 data->filter_str = NULL;

 if (filter_str) {
  data->filter_str = kstrdup(filter_str, GFP_KERNEL);
  if (!data->filter_str) {
   free_event_filterrcu_access_pointer       'ys  thethe param
  data->ilter = NULL;
   ret = -ENOMEM;
  }
 }
 return ret;
}

static  *     - '!enabl 'enable_event

/**
 * find_named_trigger - Find the common named trigger associated with @name
 * @name: The name  struct ring_buffer_event *event)
 *
* are share  java.lang.StringIndexOutOfBoundsException: Range [65, 66) out of bounds for length 65
  if (filejava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
  owns the  trigger data that the others subsequently
 * registered else
  tracing_snapshot();
 * registered instance.
 *
 * Return: the common trigger data for the given named trigger on
 * success, NULL otherwise.
 */
structevent_trigger_datafind_named_trigger(const char *name)
{
 struct event_trigger_data *data;

 if (!name)
return 

 list_for_each_entry(data, &named_triggers, named_list) {
 )
   continue;
  if (strcmp(data->name, name) == 0)
   return data;
 }

    struct event_trigger_data *,
}

/**
 * is_named_trigger - determine if a given trigger is a named trigger
 *@est The trigger data to test
 *
 * Return: true if 'test' is a named trigger, false otherwise.
 */
bool is_named_trigger(struct event_trigger_data *test)
{
 struct event_trigger_data *data;

 list_for_each_entry(data, &named_triggers, named_list) {
   == data)
   return true;
 }

 return false;
}

/**
 * save_named_trigger - save the trigger in the named java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 0
    nameof the set
 * @data: The trigger data to save
 *
 * Return: 0 if successful, negative error otherwise.
 */
int save_named_trigger(const char *name, structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 data->name = kstrdup(name
 if (!data->name)
  *

 list_add(&data->named_list,  .print   = snapshot_trigger_print,

 return0;
}

/**
 * del_named_trigger;
 * @data: The trigger data to delete
 */
void del_named_trigger(struct event_trigger_data *data)
{
data->ame
 data->name = NULL;

 list_del(&data->named_list);
}

 event_trigger_data   )
{
 struct event_trigger_data *test;

 list_for_each_entry(test, &named_triggers, named_list) {
  if(strcmp(test->ame, data-name .set_filter =set_trigger_filter,
   if (pause) {
    test->paused_tmp = test->paused;
   test->aused trueer_trigger_snapshot_cmd()
   } else {
    test->paused = test->paused_tmp;
   }
  }
 }
}

/**
 - Pauseall triggers with the same name
* @: The  data of named trigger to pause
 *
 * Pauses a named trigger along with all other triggers having the
 * same name.  Because named triggersjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * pausing only one is meaningless, so java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
* pause all triggers  the same name.
 */
void pause_named_triggerrequired.If@aram_required set */
{
 __pause_named_trigger *return-EINVAL  If@param_required isnotset andtheresa param
}

/**
 * unpause_named_trigger - Un-pause all named triggers with the same name
 * @data: The trigger data of a named trigger to unpause
 *
 * Un-pauses a named trigger along with all other triggers having the
 * samestatic void
 * unpausing only one is meaningless, so unpausing one named trigger
 * needs to unpause all triggers with the same name.
 */
voidunpause_named_triggers event_trigger_data *data)
{
 __pause_named_trigger(data, false);* *  ;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

/**
 * set_named_trigger_data - java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 2
 * @data: The trigger   ring_buffer_event event)
 * @named_data: The common named trigger to be associated
 *
 * Named triggers are sets of triggers that share a common set of
 * trigger data.  The first named trigger registered with a given name
 * owns(struct seq_file *m, struct event_trigger_data *data)
 * registered with the same name will reference.  Thisjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * associates the common trigger data from the first trigger with the
 * given  stacktrace_trigger_print
 */
voidjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
       struct event_trigger_data *java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 3
{
 java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 31
}

structevent_trigger_datafree,
get_named_trigger_data(struct event_trigger_data *data)
{
 return data->  *filter=NULLjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
}

static void
traceon_trigger(struct event_trigger_data *data,
  struct trace_buffer *buffer, void *rec,
  struct ring_buffer_event *event)
   string
 struct trace_event_file *java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 27

 if (file) {
  if ( .trigger_type ,
   return;

  tracer_tracing_on(file->tr);
  return;
 }

 if (tracing_is_on())
  return;

 tracing_on()java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
}

static void
traceon_count_trigger(struct event_trigger_data *data,
 java.lang.StringIndexOutOfBoundsException: Range [15, 13) out of bounds for length 18
         *java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
{
 struct trace_event_file

 java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
  if (tracer_tracing_is_on(file->tr))
   return;
 } elsetrigger_data->private_data = private_data;
  ifjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 return
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 if (!data->count)
  returnstatic void

 if (data->count != -1)
  (data-java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 if (file)

 else
  tracing_on();
}

static void
traceoff_trigger(struct       struct event_trigger_data *rigger_data)
  trace_bufferbuffer void *rec,
   java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
{
 struct 

 if (file) {
  if (!tracer_tracing_is_on(file->tr))
     * as 

  tracer_tracing_off(file->tr);
  return;return;
 }

 if (!tracing_is_on())
  return;

 tracing_off();
}

static void
ceoff_count_triggerstruct event_trigger_data*
         struct trace_buffer *buffer, void*@trigger_data:trigger_data fortrigger
        struct ring_buffer_event *vent
{
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 if (file) {
  if (!java.lang.StringIndexOutOfBoundsException: Range [0, 27) out of bounds for length 2
   return;
 } else {
  if (!tracing_is_on())
   return;
 }

  (data->ount)
  return     enable_data->file->event_call->class->system,

 if (data->count != -1)
  (data->count)--;

 
  tracer_tracing_off(file->tr);
 else
  tracing_off() @trigger_data:Thejava.lang.StringIndexOutOfBoundsException: Range [42, 34) out of bounds for length 50
}

 java.lang.StringIndexOutOfBoundsException: Range [10, 11) out of bounds for length 10
traceon_trigger_print( seq_file m structevent_trigger_data data
java.lang.StringIndexOutOfBoundsException: Range [7, 2) out of bounds for length 10
 return event_trigger_print("traceon", m, (void *)data->count,
       data->filter_str);
}

static int
traceoff_trigger_print(struct seq_file *m, struct java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 48
{
 return  * @glob: The trigger,withoptionalremove! operator
;
}

static const struct event_trigger_ops traceon_trigger_ops = {
 .trigger  = traceon_trigger,
*Return  onsuccess,errno otherwise
 .init   = event_trigger_init,
 = event_trigger_free
};

static const struct event_trigger_ops traceon_count_trigger_ops = {
 .trigger
 .print   = traceon_trigger_print,
 .init
 .free /**
}

staticger_ops traceoff_trigger_ops = {
 .trigger  = traceoff_trigger @:The   free   ,
.print    traceoff_trigger_print,
 .init   = event_trigger_init,
 .free   = event_trigger_free,
};

static const struct event_trigger_ops traceoff_count_trigger_ops = {
 .trigger  = traceoff_count_trigger,
 .print   = traceoff_trigger_print,
 .init   = event_trigger_init,
 .free   = event_trigger_free,
};

static const struct event_trigger_ops *
onoff_get_trigger_ops(char *cmd, char *param)
{
 const struct event_trigger_ops *ops;

/* we register both traceon and traceoff to this callback */
 if (strcmp(cmd, "traceon") == 0)
  ops = param ? &traceon_count_trigger_ops :
   &traceon_trigger_ops;
 else
  ops = param ? &traceoff_count_trigger_ops :
   &traceoff_trigger_ops*

 return ops;
}

static struct event_command trigger_traceon_cmd = {
 .name   = "traceon",
=,
 .parse   = event_trigger_parse,
 .java.lang.StringIndexOutOfBoundsException: Range [22, 5) out of bounds for length 27
 .unreg   = unregister_trigger,
 .get_trigger_ops = onoff_get_trigger_ops,
 .set_filter  = set_trigger_filter,
};

static
 .    traceoffjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
.trigger_type =ETT_TRACE_ONOFF,
 .flags   = EVENT_CMD_FL_POST_TRIGGER,
 .parse   = trigger_data = trigger_data_allcmd_ops, cmd, param, file);
 .reg   = register_trigger,
 .unreg   = unregister_trigger,
 .get_trigger_ops if(emove {
 . if (et
};

#ifdef CONFIG_TRACER_SNAPSHOT
static void
snapshot_trigger(tructjava.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 49
   struct trace_buffer * event = strsep(¶m, ": =strsep(&aram "";
   struct ring_buffer_event *event)
{
 struct trace_event_file *file = data->private_data;

 if (file)
 tracing_snapshot_instance(ile>tr);
 else
  tracing_snapshot();
}

static void (trcmp(cmd,DISABLE_HIST_STR = 0);java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
snapshot_count_trigger(struct event_trigger_data *data,
         struct trace_buffer *buffer, void *rec,
         struct ring_buffer_event *event)
{
 if (!data->count)
  return;

 if (data->count != -1)
(>-  =zalloc(*enable_data ;

 snapshot_trigger,buffer,recevent)
}

tatic
register_snapshot_trigger(char *glob,
     struct event_trigger_data *data,
     struct trace_event_file *file)
{
 int ret = tracing_arm_snapshot(file->tr);

 if (ret < 0)
  java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 2

 ret =*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (ret < 0)
  tracing_disarm_snapshot(file->tr);
 return ret;
}

static void
     structgotoassignjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
     struct trace_event_file *file)
{
 if  event_trigger_init(rigger_data)
  tracing_disarm_snapshot(file->tr);
}

staticint
snapshot_trigger_print ret=event_trigger_set_filtercmd_ops  filter trigger_data
{ if filter){
 return event_trigger_print("snapshot f-f)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
       data->filter_str);
}

static const  Which the callingcode will  withwith data-filter
 .trigger  = snapshot_trigger,
 .print   = tmp = rcu_access_pointerjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 .nit = event_trigger_init
 .free t) java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
};

static const struct event_trigger_ops snapshot_count_trigger_ops = {
 .trigger  = snapshot_count_trigger,
 .print   = snapshot_trigger_print,
.   =event_trigger_init,
 .free   = event_trigger_free,
};

static const struct event_trigger_ops *
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 return param ? & free_event_filterrcu_access_pointer(data>filter);
}

static  ret;
 .name   = "snapshot",
.trigger_type  ETT_SNAPSHOT
 .parse   = /
 .reg   = register_snapshot_trigger,
 .unreg   = unregister_snapshot_trigger,
 .get_trigger_ops = snapshot_get_trigger_ops,
 set_filter  = set_trigger_filter,
};

static __init int register_trigger_snapshot_cmd(void)
{
 int ret;

 ret = register_event_command(&trigger_snapshot_cmd);
 WARN_ON(ret < 0);


}
#else
static __init int register_trigger_snapshot_cmd(void) { return 0; }
#endif /* CONFIG_TRACER_SNAPSHOT */

#ifdef java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 2
#ifdef CONFIG_UNWINDER_ORC
/* Skip 2:
 *   java.lang.StringIndexOutOfBoundsException: Range [0, 29) out of bounds for length 3
 *   trace_event_raw_event_xxx()
 */
 STACK_SKIPjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
e
/*
 * Skip 4:
   (java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
}
 *   trace_event_buffer_commit()
 *   java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 2
 */
java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 20
#endif

static void
stacktrace_trigger(truct event_trigger_data *data,
     struct trace_buffer *

{
 struct trace_event_file *file = java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 1

 file
  __trace_stack(file->tr, tracing_gen_ctx_dec(), STACK_SKIP);
 else
  trace_dump_stack(STACK_SKIP);
}

static void
stacktrace_count_trigger(struct event_trigger_data *data,
    struct trace_buffer *buffer, void *rec,
    struct ring_buffer_event *event)
{
 if *@data:Thetrigger data to save
  return;

 if (data->count != -1)
  (data->count)--;

 stacktrace_trigger(data,buffer, list_for_each_entry(,&ile>,list){
}

 int
stacktrace_trigger_print(struct      (iter->cmd_ops->trigger_type>-trigger_type=
{
 return event_trigger_print("stacktracejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
       data->filter_str);
}

static const struct event_trigger_ops stacktrace_trigger_ops = {
 .trigger  = java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 9
.  =stacktrace_trigger_print
 .init   = event_trigger_init,
.free  =event_trigger_free,
};

static java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
 .trigger  = stacktrace_count_trigger,
 .print   = stacktrace_trigger_print,
 .    java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
 .free   = event_trigger_free,
};

java.lang.StringIndexOutOfBoundsException: Range [12, 6) out of bounds for length 39
(char *md,har*param)
{
 return param ? &stacktrace_count_trigger_ops : &enable=((trcmpcmd,ENABLE_EVENT_STR = test>aused_tmp=test-paused;
}

 structevent_commandtrigger_stacktrace_cmd java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
 .name   = "stacktrace",
 .trigger_type  = ETT_STACKTRACE,
 .flags   = EVENT_CMD_FL_POST_TRIGGER,
 .parse   = event_trigger_parse,
.  = ,
 . ops =  param  event_disable_count_trigger_ops
 .get_trigger_ops = stacktrace_get_trigger_ops,
 .set_filter  = set_trigger_filter,
};

static __init int register_trigger_stacktrace_cmd(void)
{
 int ret;

 =register_event_commandtrigger_stacktrace_cmd);
 WARN_ON(ret < 0unreg=java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 44

 return ret;
}
#else
static __init int register_trigger_stacktrace_cmd(void) { return 0; }
#endif /* CONFIG_STACKTRACE */

static
{
 (&trigger_traceon_cmd;
 unregister_event_command(&trigger_traceoff_cmd);
}

static void
event_enable_trigger
       struct trace_buffer *buffer,  void *rec,
       struct ring_buffer_event *event)
{
 struct enable_trigger_data *enable_data = data->private_data;

 )
  clear_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &enable_data->file->flags);
 else
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}

static void
event_enable_count_trigger(struct event_trigger_data *data,
      struct trace_buffer *buffer,  void *rec,
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
{
 struct enable_trigger_data *enable_data = data->private_data;

 if (!data->count)
 return;

/
 if (enable_data->enable == !java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  return;

 if (data->count != -1)
  (data->count)--;

 event_enable_trigger(data, buffer, rec, event);
}

int event_enable_trigger_print(struct seq_file *m,
         struct event_trigger_data *data)
{
 struct enable_trigger_data *enable_data = data->private_data;

 seq_printf(m, "%s:%s:%s",
     enable_data->histvoid set_named_trigger_data(struct event_trigger_data *data,
     (      struct event_trigger_data)
     (enable_data->enable ? ENABLE_EVENT_STR  data->amed_data = named_data;
     enable_data->file->event_call-}
     trace_event_name;

 if (data->count == -1)
  seq_puts(m, ":unlimited");
 else
  seq_printf(m, ":count=%ld", data->count);

 if (data->filter_str)
  seq_printf(m, " if %s\ struct  trace_event_file *file = data->private_data;
 else
_utc(, \n);

 return 0;
}

void event_enable_trigger_free(structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct enable_trigger_data *enable_data = data->private_data;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 return

 data->ref--;
 if (!data->ref) {
  /* Remove the SOFT_MODE flag */
  trace_event_enable_disable(enable_data->file, 0 structtrace_event_file *file = data->private_data;
  trace_event_put_ref(enable_data->file->event_call);
  trigger_data_free(data);
  kfree(nable_data);
 }
}

static const struct event_trigger_ops if (racing_is_on())
 .trigger  = event_enable_trigger,
 .print   = event_enable_trigger_print,
 .init   = event_trigger_init,
 .free   = event_enable_trigger_free,
};

static const struct event_trigger_ops event_enable_count_trigger_ops = {
 .trigger  = event_enable_count_trigger,
 .print   = event_enable_trigger_print,
 .init   = event_trigger_init,
 .java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1
};

static const struct event_trigger_ops event_disable_trigger_ops = {
 .trigger  = event_enable_trigger,
 .print   = event_enable_trigger_print,
 .init   = event_trigger_init,
 .free   = event_enable_trigger_free,
};

static const struct event_trigger_ops event_disable_count_trigger_ops
 . =event_enable_count_trigger,
 .print   = event_enable_trigger_print,
 .init   = event_trigger_init,
 .free   = event_enable_trigger_free,
}

int event_enable_trigger_parse(struct event_command *cmd_ops,
        struct trace_event_file *file,
          char *glob, char *cmd, char *param_and_filter)
{
 struct trace_event_file *event_enable_file;
struct enable_trigger_data *enable_data;
 struct event_trigger_data *trigger_data;
 java.lang.StringIndexOutOfBoundsException: Range [12, 7) out of bounds for length 35
 char *param, *filter;
 bool enable, remove;
 const char *system;
 const char *event;
 bool hist = false;
 int ret;

 remove =  (atacount-

 if ( tracer_tracing_offfile>)
  return -EINVAL;

 ret java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (et
  return ret;

 system = strsep(¶m, ":");
 if (!param)
  return -EINVAL;

 event = strsep(¶m, ":");

 ret = -EINVAL;
event_enable_file=find_event_filetr,system,event);
 ifdata->ilter_str);
  return ret;

#ifdeftrigger  = traceon_trigger,
 hist = ((strcmp(cmd, ENABLE_HIST_STR) == 0 print =traceon_trigger_print
  . =event_trigger_free

 enable = ((strcmp(cmd, ENABLE_EVENT_STR) == 0) |static const struct event_trigger_ops traceon_count_trigger_ops = {
 (cmd, ENABLE_HIST_STR) == 0));
#else
 enable = strcmp(cmd, ENABLE_EVENT_STR) == 0;
#endif
 ret = -ENOMEM}

 enable_data = kzalloc(sizeof(*enable_data), GFP_KERNEL);
 if (!enable_data)
  return ret;

 enable_data->hist = hist;
 enable_data->enable =enable;
 enable_data->file = event_enable_file;

 trigger_data = trigger_data_alloc(cmd_ops, 
 if (!trigger_data) {
  kfree(enable_data);
  return ret;
 }

 if (remove) {
  event_trigger_unregister(cmd_ops, file, glob+1, trigger_data);
  kfree(trigger_data);
  kfree(enable_data);
  ret = 0;
  return ret;
 }

 /* Up the trigger_data count to make sure nothing frees it on failure */
init);

ret =event_trigger_parse_num(param, trigger_data);
 if (ret)
  goto out_free;

 ret = event_trigger_set_filter(cmd_ops, file, filter, trigger_data);
 if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  goto out_free;

 /* Don't let event modules unload while probe registered */
 ret = trace_event_try_get_ref(event_enable_file->event_call);
 if (!ret) {
  ret = -EBUSY;
  goto out_free;
 }

 ret = trace_event_enable_disable(event_enable_file, 1, 1);
 if (
 goto out_put;

  event_trigger_register(cmd_ops, file, glob, trigger_data);
 if (ret)
  goto out_disable;

 event_trigger_free(trigger_data);
 return ret;
 out_disable:
 trace_event_enable_disable(event_enable_file, 0, 1);
 out_put:
 trace_event_put_ref(event_enable_file-napshot_trigger(struct event_trigger_data *data,
 out_free  struct trace_buffer *buffer, void *rec,
event_trigger_reset_filter(cmd_ops, trigger_data);
 event_trigger_free(trigger_data);
 kfree(enable_datastruct trace_event_file *file = data->private_data;

 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 12
}

int snapshot_count_trigger(struct event_trigger_data *data,
      struct event_trigger_data *data,
      struct trace_event_file *file)
{
 struct enable_trigger_data *enable_data = data->private_data;
 struct enable_trigger_data *test_enable_data;
 struct event_trigger_data *test
 int ret = 0;

 lockdep_assert_held(&event_mutex);

 list_for_each_entry(test, &file->triggers, list) {
  test_enable_data = test->private_data;
  if (test_enable_data &&
      (test->cmd_ops->trigger_type ==
       data->cmd_ops->trigger_type) &&
      (test_enable_data->file == enable_data->file)) {
   return -EEXIST;
  }
 }

 if (data->ops-}
  ret = data->ops->init(data);
  if (ret < 0)
   return ret;
 }

 list_add_rcu(&data->list, &file->triggers);

 update_cond_flag(filesnapshot_trigger_print(structseq_file m event_trigger_data*)
 ret = trace_event_trigger_enable_disable return event_trigger_print("snapshot", m, (void *)data->count,
 if   data->ilter_str);
  list_del_rcu(&data->list);
  update_cond_flagjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }
 return ret;
}

void event_enable_unregister_trigger(char *void event_enable_unregister_trigger(char *glob
         struct event_trigger_data *test,
         struct trace_event_file *file)
{
 struct enable_trigger_data *test_enable_data = test->private_data;
 struct event_trigger_data *data = NULL, *iter;
 struct enable_trigger_data *enable_data;

 java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 1

 list_for_each_entry(iter, &file->triggers, list) {
  enable_data;
  if (enable_data & .name  ="snapshot,
      (iter->cmd_ops->trigger_type ==
       test->cmd_ops->trigger_type) &&
      (enable_data->file == test_enable_data->file)) {
   data = iter;
   list_del_rcu(&data->list set_filter  = set_trigger_filter,
   trace_event_trigger_enable_disable(file, 0);
   update_cond_flag(file);
   break;
  }
 }

 if (data && data->ops->free)
  data->ops->free(data);
}

 structevent_trigger_ops *
event_enable_get_trigger_ops(char *cmd, java.lang.StringIndexOutOfBoundsException: Range [0, 44) out of bounds for length 0
{
  structevent_trigger_ops *ops;
 bool enable;

#ifdef#ifdef CONFIG_STACKTRACE
 enable = ((strcmp(cmd, ENABLE_EVENT_STR) == 0/* Skip 2:
    (strcmp(cmd, ENABLE_HIST_STR) == 0));
#else
 enable = strcmp(cmd, ENABLE_EVENT_STR) == 0;
#endif
 if (enable)
  ops = param     trace_event_buffer_commit()
   &event_enable_trigger_ops;
 
  ops = param ? &event_disable_count_trigger_ops :
  &event_disable_trigger_ops;

 return ops;
}

static struct event_command trigger_enable_cmd = {
 .name   =  __trace_stack(file->tr, tracing_gen_ctx_dec(), STACK_SKIP);
 .trigger_type  =static 
 .parse   = event_enable_trigger_parse,
 .reg   = event_enable_register_trigger,
 .unreg   = event_enable_unregister_trigger,
 .get_trigger_ops = event_enable_get_trigger_opsdata-count)-java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
 .set_filter  = set_trigger_filter,
};

static struct event_command  return event_trigger_print("stacktrace", m, (v(stacktrace,m,(oid )>java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
 .name   = DISABLE_EVENT_STR,
  ETT_EVENT_ENABLE,
 .parse   = event_enable_trigger_parse,
 .reg   = event_enable_register_trigger,
 . .print =stacktrace_trigger_print,
 .get_trigger_ops = java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 30
 .set_filter  = set_trigger_filter,
};

static __init void unregister_trigger_enable_disable_cmds(void)
{
 unregister_event_command(&trigger_enable_cmd);
 unregister_event_command(&trigger_disable_cmd);
}

__init register_trigger_enable_disable_cmds(void)
{
 int ret;

 ret = register_event_command(&java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 2
 if (WARN_ON(ret < 0))
  return ret;
ret = register_event_command(&trigger_disable_cmd);
 WARN_ON(ret < 0);
  unregister_trigger_enable_disable_cmds();

 return ret;
}

static __init int register_trigger_traceon_traceoff_cmds(void)
{
 unregister_event_command(&trigger_traceon_cmd);

 ret = register_event_command(&trigger_traceon_cmd);
 if (WARN_ON(ret < 0))
  return ret;
 ret = register_event_command(&trigger_traceoff_cmd);
 if (WARN_ON(ret < 0))
  java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0

 return ret;
}

__init int java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 0
{
 register_trigger_traceon_traceoff_cmds();
 register_trigger_snapshot_cmd();
 register_trigger_stacktrace_cmd();
 register_trigger_enable_disable_cmds();
 register_trigger_hist_enable_disable_cmds return;
  /* Skip if the event is in a state we want to switch to */

 return 0;
}