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Name	Size	Permission
arm	[ DIR ]	drwxr-xr-x
arm64	[ DIR ]	drwxr-xr-x
i386	[ DIR ]	drwxr-xr-x
ia64	[ DIR ]	drwxr-xr-x
powerpc	[ DIR ]	drwxr-xr-x
s390	[ DIR ]	drwxr-xr-x
x86_64	[ DIR ]	drwxr-xr-x
atomic.stp	1.52 KB	-rw-r--r--
aux_syscalls.stp	139.14 KB	-rw-r--r--
context-caller.stp	3.07 KB	-rw-r--r--
context-envvar.stp	1.71 KB	-rw-r--r--
context-symbols.stp	11.98 KB	-rw-r--r--
context-unwind.stp	2.81 KB	-rw-r--r--
context.stp	17.76 KB	-rw-r--r--
context.stpm	125 B	-rw-r--r--
conversions-guru.stp	5.56 KB	-rw-r--r--
conversions.stp	10.92 KB	-rw-r--r--
ctime.stp	5.32 KB	-rw-r--r--
dentry.stp	9.79 KB	-rw-r--r--
dev.stp	1.79 KB	-rw-r--r--
endian.stp	602 B	-rw-r--r--
guru-delay.stp	1.2 KB	-rw-r--r--
guru-signal.stp	1.07 KB	-rw-r--r--
inet.stp	1.42 KB	-rw-r--r--
inet_sock.stp	1.31 KB	-rw-r--r--
ioblock.stp	12.55 KB	-rw-r--r--
ioscheduler.stp	11.74 KB	-rw-r--r--
ip.stp	5.23 KB	-rw-r--r--
ipmib-filter-default.stp	965 B	-rw-r--r--
ipmib.stp	12.55 KB	-rw-r--r--
irq.stp	5 KB	-rw-r--r--
json.stp	8.92 KB	-rw-r--r--
json.stpm	6.11 KB	-rw-r--r--
kprocess.stp	4.38 KB	-rw-r--r--
kretprobe.stp	2.1 KB	-rw-r--r--
linuxmib-filter-default.stp	876 B	-rw-r--r--
linuxmib.stp	3.38 KB	-rw-r--r--
loadavg.stp	1.87 KB	-rw-r--r--
logging.stp	2.08 KB	-rw-r--r--
memory.stp	17.77 KB	-rw-r--r--
nd_syscalls.stp	138.14 KB	-rw-r--r--
nd_syscalls2.stp	161.75 KB	-rw-r--r--
netfilter.stp	31.56 KB	-rw-r--r--
networking.stp	7.17 KB	-rw-r--r--
nfs.stp	37.86 KB	-rw-r--r--
nfs_proc.stp	55.3 KB	-rw-r--r--
nfs_proc.stpm	1.18 KB	-rw-r--r--
nfsd.stp	39.97 KB	-rw-r--r--
nfsderrno.stp	11.7 KB	-rw-r--r--
panic.stp	1.07 KB	-rw-r--r--
perf.stp	4.5 KB	-rw-r--r--
proc_mem.stp	11.49 KB	-rw-r--r--
pstrace.stp	773 B	-rw-r--r--
rcu.stp	917 B	-rw-r--r--
rlimit.stp	1.35 KB	-rw-r--r--
rpc.stp	37.94 KB	-rw-r--r--
scheduler.stp	11.33 KB	-rw-r--r--
scsi.stp	9.46 KB	-rw-r--r--
signal.stp	28.35 KB	-rw-r--r--
socket.stp	33.41 KB	-rw-r--r--
syscalls.stp	136.01 KB	-rw-r--r--
syscalls.stpm	11.28 KB	-rw-r--r--
syscalls2.stp	158.1 KB	-rw-r--r--
syscalls_cfg_trunc.stp	111 B	-rw-r--r--
target_set.stp	1.71 KB	-rw-r--r--
task.stp	19.07 KB	-rw-r--r--
task.stpm	157 B	-rw-r--r--
task_ancestry.stp	1.57 KB	-rw-r--r--
task_time.stp	7.45 KB	-rw-r--r--
tcp.stp	21.98 KB	-rw-r--r--
tcpmib-filter-default.stp	885 B	-rw-r--r--
tcpmib.stp	10.29 KB	-rw-r--r--
timestamp.stp	1.72 KB	-rw-r--r--
timestamp_gtod.stp	1.59 KB	-rw-r--r--
timestamp_monotonic.stp	5.12 KB	-rw-r--r--
tty.stp	7.15 KB	-rw-r--r--
tzinfo.stp	803 B	-rw-r--r--
ucontext-symbols.stp	8.62 KB	-rw-r--r--
ucontext-unwind.stp	3.64 KB	-rw-r--r--
ucontext.stp	2.18 KB	-rw-r--r--
udp.stp	5.73 KB	-rw-r--r--
utrace.stp	1.33 KB	-rw-r--r--
vfs.stp	26.83 KB	-rw-r--r--

Code Editor : ucontext-symbols.stp

// User context symbols tapset
// Copyright (C) 2009-2012 Red Hat Inc.
//
// This file is part of systemtap, and is free software.  You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.

// <tapsetdescription>
// User context symbol functions provide additional information about
// addresses from an application. These functions can provide
// information about the user space map (library) that the event occurred or
// the function symbol of an address.
// </tapsetdescription>

function __ustack_raw:long (n:long) %{ /* pragma:unwind */ /* pure */
         /* myproc-unprivileged */ /* pragma:uprobes */
         /* basic sanity check for bounds: */
         if (unlikely(STAP_ARG_n < 0 || STAP_ARG_n >= MAXBACKTRACE))
                  STAP_RETVALUE = 0;
         else
                  STAP_RETVALUE = _stp_stack_user_get (CONTEXT, (unsigned)STAP_ARG_n);
%}

/**
 *  sfunction ustack - Return address at given depth of user stack backtrace
 *  @n: number of levels to descend in the stack.
 *
 *  Description: Performs a simple (user space) backtrace, and returns the
 *  element at the specified position. The results of the backtrace itself
 *  are cached, so that the backtrace computation is performed at most once
 *  no matter how many times ustack() is called, or in what order.
 */
function ustack:long (n:long) {
         __r = __ustack_raw(n);
         if (__r != 0) return __r

/* fallback: parse backtrace() to go deeper in the stack */
         __b = ubacktrace (); __orig_n = n;
         __sym = tokenize (__b, " ");
         if (__sym == "") @__context_unwind_error(__orig_n);
         while (__n > 0) {
               __sym = tokenize ("", " ");
               if (__sym == "") @__context_unwind_error(__orig_n);
               __n--;
         }
         return strtol(__sym, 16)
}

/**
 * sfunction usymname - Return the symbol of an address in the current task.
 * @addr: The address to translate.
 *
 * Description: Returns the (function) symbol name associated with the
 * given address if known. If not known it will return the hex string
 * representation of addr.
 */
function usymname:string (addr: long) %{
/* pure */ /* myproc-unprivileged */ /* pragma:vma */ /* pragma:symbols */
	 _stp_snprint_addr(STAP_RETVALUE, MAXSTRINGLEN, STAP_ARG_addr,
			   _STP_SYM_SYMBOL, current);
%}

/**
 * sfunction usymdata - Return the symbol and module offset of an address.
 * @addr: The address to translate.
 *
 * Description: Returns the (function) symbol name associated with the
 * given address in the current task if known, the offset from the
 * start and the size of the symbol, plus the module name (between
 * brackets).  If symbol is unknown, but module is known, the offset
 * inside the module, plus the size of the module is added.  If any
 * element is not known it will be omitted and if the symbol name is
 * unknown it will return the hex string for the given address.
 */
function usymdata:string (addr: long) %{
/* pure */ /* myproc-unprivileged */ /* pragma:vma */ /* pragma:symbols */
	 _stp_snprint_addr(STAP_RETVALUE, MAXSTRINGLEN, STAP_ARG_addr,
			   _STP_SYM_DATA, current);
%}

/**
 * sfunction print_ustack - Print out stack for the current task from string.
 * @stk: String with list of hexadecimal addresses for the current task.
 *
 *  Perform a symbolic lookup of the addresses in the given string,
 *  which is assumed to be the result of a prior call to 
 *  ubacktrace() for the current task.
 * 
 *  Print one line per address, including the address, the
 *  name  of the function containing the address, and an estimate of
 *  its position within that function.  Return nothing.
 *
 * NOTE: it is recommended to use print_usyms() instead of this function.
 */
function print_ustack(stk:string) { print_usyms(stk) }

/**
 * sfunction print_usyms - Print out user stack from string
 * @callers: String with list of hexadecimal (user) addresses
 *
 *  Description: This function performs a symbolic lookup of the addresses
 *  in the given string,
 *  which are assumed to be the result of prior calls to ustack(),
 *  ucallers(), and similar functions.
 * 
 *  Prints one line per address, including the address, the
 *  name of the function containing the address, and an estimate of
 *  its position within that function, as obtained by usymdata().
 *  Returns nothing.
 */
function print_usyms (callers:string) {
         __sym = tokenize (callers, " ");
         while (__sym != "") {
               printf (" %s : %s\n", __sym, usymdata (strtol(__sym,16)));
               __sym = tokenize ("", " ");
         }
}

/**
 * sfunction sprint_ustack - Return stack for the current task from string.
 * @stk: String with list of hexadecimal addresses for the current task.
 *
 * Perform a symbolic lookup of the addresses in the given string,
 * which is assumed to be the result of a prior call to
 * ubacktrace() for the current task.
 *
 * Returns a simple backtrace from the given hex string. One line per
 * address. Includes the symbol name (or hex address if symbol
 * couldn't be resolved) and module name (if found). Includes the
 * offset from the start of the function if found, otherwise the
 * offset will be added to the module (if found, between
 * brackets). Returns the backtrace as string (each line terminated by
 * a newline character).  Note that the returned stack will be
 * truncated to MAXSTRINGLEN, to print fuller and richer stacks use
 * print_ustack.
 *
 * NOTE: it is recommended to use sprint_usyms() instead of this function.
 */
function sprint_ustack:string(stk:string) { sprint_usyms(stk) }

/**
 * sfunction sprint_usyms - Return stack for user addresses from string
 *
 * @callers: String with list of hexadecimal (user) addresses
 *
 * Perform a symbolic lookup of the addresses in the given string,
 * which are assumed to be the result of a prior calls to ustack(),
 * ucallers(), and similar functions.
 *
 * Returns a simple backtrace from the given hex string. One line per
 * address. Includes the symbol name (or hex address if symbol
 * couldn't be resolved) and module name (if found), as obtained from
 * usymdata(). Includes the offset from the start of the function if
 * found, otherwise the offset will be added to the module (if found, between
 * brackets). Returns the backtrace as string (each line terminated by
 * a newline character).  Note that the returned stack will be
 * truncated to MAXSTRINGLEN, to print fuller and richer stacks use
 * print_usyms().
 */
function sprint_usyms (callers:string) {
         __sym = tokenize (callers, " ");
         __foo = ""; __l = 0
         while (__sym != "") {
               // cleanly handle overflow instead of printing partial line:
               __line = sprintf (" %s : %s\n", __sym,
                usymdata (strtol(__sym,16)));
               __l += strlen(__line)
               if (__l > @MAXSTRINGLEN) break
               __foo .= __line
               __sym = tokenize ("", " ")
         }
         return __foo
}

/**
 * sfunction usymfileline - Return the file name and line number of an address.
 * @addr: The address to translate.
 *
 * Description: Returns the file name and the (approximate) line number of the
 * given address, if known. If the file name or the line number cannot be
 * found, the hex string representation of the address will be returned.
 */
function usymfileline:string (addr:long) %{
/* pure */ /* myproc-unprivileged */ /* pragma:symbols */ /* pragma:vma */ /* pragma:lines */
  _stp_snprint_addr(STAP_RETVALUE, MAXSTRINGLEN, STAP_ARG_addr,
                    _STP_SYM_LINENUMBER + _STP_SYM_FILENAME, current);
%}

/**
 * sfunction usymfile - Return the file name of a given address.
 * @addr: The address to translate.
 *
 * Description: Returns the file name of the  given address, if known. If the
 * file name cannot be found, the hex string representation of the address
 * will be returned.
 */
function usymfile:string (addr:long) %{
/* pure */ /* myproc-unprivileged */ /* pragma:symbols */ /* pragma:vma */ /* pragma:lines */
  _stp_snprint_addr(STAP_RETVALUE, MAXSTRINGLEN, STAP_ARG_addr,
                    _STP_SYM_FILENAME, current);
%}

/**
 * sfunction usymline - Return the line number of an address.
 * @addr: The address to translate.
 *
 * Description: Returns the (approximate) line number of the given address, if
 * known. If the line number cannot be found, the hex string representation of
 * the address will be returned.
 */
function usymline:string (addr:long) %{
/* pure */ /* myproc-unprivileged */ /* pragma:symbols */ /* pragma:vma */ /* pragma:lines */
  _stp_snprint_addr(STAP_RETVALUE, MAXSTRINGLEN, STAP_ARG_addr,
                    _STP_SYM_LINENUMBER, current);
%}

${this.title}

Code Editor : ucontext-symbols.stp