1#@!#!123s

: / proc / self / root / usr / share / systemtap / tapset /
Filename : java.stp
back
@__private30 global java_backtrace_string

/**
 * sfunction sprint_java_backtrace - returns the java backtrace as a single string
 *
 * Description: This function returns the java backtrace as a single string.
 * in the case when the backtrace is cut off, use the -DMAXSTRINGLEN
 * option to extend the maximum string length
 */

function sprint_java_backtrace:string ()
{
    foreach([_tid,__thread_depth+] in java_backtrace_string){
      if(_tid == tid()){
	string_return .= java_backtrace_string[_tid,__thread_depth]
	string_return .= "\n"
      }
    }
  return string_return
}

/**
 * sfunction print_java_backtrace - print the java backtrace
 *
 * Description: This function immediately prints the java backtrace
 * one line at a time, avoiding any max string length issues.
 *
 */
function print_java_backtrace ()
{
    foreach ([_tid,__thread_depth+] in java_backtrace_string){
      if(_tid == tid()){
	println(java_backtrace_string[_tid,__thread_depth])
      }
    }
}

function __delete_backtrace()
{
  foreach([_tid,_depth-] in java_backtrace_string){
    if(_tid == tid() && _depth > jbs_dup){
      jbs_dup = _depth
    }
  }
  for (i = 0; i< jbs_dup; i++)
    delete java_backtrace_string[_tid, i]
  delete jbs_dup
}

function __assign_stacktrace(jbts:long, jstd:long){
  java_backtrace_string[tid(), jstd] = user_string(jbts)
}