FM / tapset

/usr/share/systemtap/tapset

Name	Size	Mode	Actions
arm/	-	0755	rm
arm64/	-	0755	rm
bpf/	-	0755	rm
dyninst/	-	0755	rm
i386/	-	0755	rm
ia64/	-	0755	rm
linux/	-	0755	rm
mips/	-	0755	rm
powerpc/	-	0755	rm
riscv/	-	0755	rm
s390/	-	0755	rm
x86_64/	-	0755	rm
ansi.stp	4178	0644	edit dl rm
argv.stp	2721	0644	edit dl rm
choose_defined.stpm	208	0644	edit dl rm
container_of.stpm	235	0644	edit dl rm
context.stp	6103	0644	edit dl rm
errno.stp	9118	0644	edit dl rm
floatingpoint.stp	6936	0644	edit dl rm
indent-default.stp	59	0644	edit dl rm
indent.stp	4590	0644	edit dl rm
init.stp	269	0644	edit dl rm
input.stp	263	0644	edit dl rm
java.stp	1346	0644	edit dl rm
libperl5.26.3-64.stp	1339	0644	edit dl rm
libpython2.7-64.stp	522	0644	edit dl rm
livepatch.stp	3006	0644	edit dl rm
logging.stp	4132	0644	edit dl rm
macros.stpm	562	0644	edit dl rm
null.stp	17	0644	edit dl rm
offsetof.stpm	183	0644	edit dl rm
oneshot.stp	38	0644	edit dl rm
pn.stp	1588	0644	edit dl rm
print_stats.stpm	1719	0644	edit dl rm
private30.stpm	80	0644	edit dl rm
prometheus.stp	129	0644	edit dl rm
prometheus.stpm	8380	0644	edit dl rm
python.stp	474	0644	edit dl rm
python2.stp	29435	0644	edit dl rm
python3.stp	36655	0644	edit dl rm
queue_stats.stp	9487	0644	edit dl rm
random.stp	432	0644	edit dl rm
README	371	0644	edit dl rm
regex.stp	4107	0644	edit dl rm
registers.stp	11081	0644	edit dl rm
sizeof.stpm	212	0644	edit dl rm
speculative.stp	1746	0644	edit dl rm
sreg_arch.stpm	263	0644	edit dl rm
stap_staticmarkers.stp	9670	0644	edit dl rm
stopwatch.stp	3063	0644	edit dl rm
string.stp	7514	0644	edit dl rm
switchfile.stp	612	0644	edit dl rm
system.stp	593	0644	edit dl rm
this.stp	160	0644	edit dl rm
timers.stp	924	0644	edit dl rm
tls.stp	8099	0644	edit dl rm
tokenize.stp	2124	0644	edit dl rm
try_assign.stpm	768	0644	edit dl rm
type_defined.stpm	374	0644	edit dl rm
tzinfo.stp	930	0644	edit dl rm
uconversions-guru.stp	6078	0644	edit dl rm
uconversions.stp	36640	0644	edit dl rm

Edit: /usr/share/systemtap/tapset/logging.stp (4132B)

// logging tapset
// Copyright (C) 2005-2021 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.

// XXX this and other functions also implemented in tapset/bpf/logging.stp
%( runtime != "bpf" %?

/**
 * sfunction log - Send a line to the common trace buffer
 *
 * @msg: The formatted message string
 *
 * Description: This function logs data. log sends the
 * message immediately to staprun and to the bulk transport
 * (relayfs) if it is being used. If the last character given
 * is not a newline, then one is added. This function is not 
 * as efficient as printf and should be used only for urgent
 * messages. 
 */
function log (msg:string)
%{ /* unprivileged */ /* unmodified-fnargs */
     STAP_PRINTF ("%s\n", STAP_ARG_msg);
%}

/**
 * sfunction warn - Send a line to the warning stream
 *
 * @msg: The formatted message string
 *
 * Description: This function sends a warning message immediately to 
 * staprun. It is also sent over the bulk transport (relayfs) if it is
 * being used. If the last characater is not a newline, the one is added.
 */
function warn (msg:string)
%{ /* unprivileged */ /* unmodified-fnargs */
     _stp_warn ("%s", STAP_ARG_msg);
%}

/**
 * sfunction exit - Start shutting down probing script.
 *
 * Description: This only enqueues a request to start
 * shutting down the script.  New probes will not fire
 * (except "end" probes), but all currently   
 * running ones may complete their work.
 */
function exit ()
%{ /* unprivileged */
   atomic_set (session_state(), STAP_SESSION_STOPPING);
   _stp_exit ();
%}

%(systemtap_v >= "4.0" %?
/**
 * sfunction abort - Immediately shutting down probing script.
 *
 * Description: This is similar to exit() but immediately aborts
 * the current probe handler instead of waiting for its
 * completion. Probe handlers already running on *other* CPU cores,
 * however, will still continue to their completion. Unlike error(),
 * this function call cannot be caught by 'try ... catch'.
 */
function abort ()
%{ /* unprivileged */
   atomic_set (session_state(), STAP_SESSION_STOPPING);
   _stp_exit ();
   CONTEXT->aborted = 1;
   CONTEXT->last_stmt = NULL;
%}
%)

/**
 * sfunction error - Send an error message
 *
 * @msg: The formatted message string
 *
 * Description: An implicit end-of-line is added.  staprun prepends
 * the string "ERROR:".  Sending an error message aborts the currently
 * running probe.  Depending on the MAXERRORS parameter, it may
 * trigger an exit().
 */
function error (msg:string)
%{ /* unprivileged */ /* unmodified-fnargs */
   /* NB: we used to reuse msg[] for an assignment to last_error; this
    is clearer & safer. */
   strlcpy (CONTEXT->error_buffer, STAP_ARG_msg, MAXSTRINGLEN);
   CONTEXT->last_error = CONTEXT->error_buffer;
   CONTEXT->last_stmt = NULL;
%}

%) // XXX runtime != "bpf"

/**
 * sfunction assert - evaluate assertion
 *
 * @expression: The expression to evaluate
 *
 * Description: This function checks the expression and aborts the
 * current running probe if expression evaluates to zero. Uses error()
 * and may be caught by try{} catch{}. A default message will be
 * displayed.
 */
function assert(expression:long) { /* bpf */ /* unprivileged */
    if (!expression) {
        error("Assertion failed")
    }
}

/**
 * sfunction assert - evaluate assertion
 *
 * @expression: The expression to evaluate
 * @msg: The formatted message string
 *
 * Description: This function checks the expression and aborts the
 * current running probe if expression evaluates to zero. Uses error()
 * and may be caught by try{} catch{}. The specified message will be
 * displayed.
 */
function assert(expression:long, msg:string) { /* bpf */ /* unprivileged */
    if (!expression) {
        error(msg)
    }
}

%( runtime != "bpf" %?
function stp_print_binary(n:long, arg1:long, arg2:long, arg3:long, arg4:long) %{
	_stp_print_binary (STAP_ARG_n, STAP_ARG_arg1, STAP_ARG_arg2, STAP_ARG_arg3, STAP_ARG_arg4);
%}
%)

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