File: 301actions-print.d

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dtrace 2.0.5-1
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/*
 * Linux DTrace
 * Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
 * Licensed under the Universal Permissive License v 1.0 as shown at
 * http://oss.oracle.com/licenses/upl.
 */

#!/usr/sbin/dtrace -s

/*
 *  SYNOPSIS
 *    sudo ./301actions-print.d
 *
 *  DESCRIPTION
 *    There are multiple ways to examine data values.
 */

BEGIN
{
	/* printf() is a C-like formatted print */
	/* note:  %d can be used with any size of integer */
	printf("%c %d %s\n", 'a', 1234ll, "hello");

	/* trace() uses data-type information to format */
	trace('a');
	trace(1234);
	trace("hello");

	/* tracemem() dumps a specified number of bytes */
	tracemem(`linux_banner, 64);

	/*
	 * print() uses data-type information to print and annotate
	 * contents at a pointer
	 */
	print(curthread);

	exit(0);
}