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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 ./002intro-global-variables.d
*
* DESCRIPTION
* Rules for variable names are similar to those in C. By
* default, they are "global" -- that is, seen by every thread
* and every probe. So be careful that no thread overwrites any
* other thread's write. Variables may be typed implicitly.
*/
int explicitly_typed_variable;
dtrace:::BEGIN
{
explicitly_typed_variable = 1234;
implicitly_typed_variable = 5678;
printf("%d %d\n", explicitly_typed_variable,
implicitly_typed_variable);
my_char = 'a';
my_string = "hello world";
my_pointer = (int *) 0x123456;
printf("%c '%s' %p\n", my_char, my_string, my_pointer);
exit(0);
}
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