/*

    Example of the perl systemtap tapset shows a nested view of perl subroutine

    calls and returns across the whole system.

    To run:

        stap perl-example.stp (for all perl processes)

    For specific perl process:

        stap perl-example.stp -c COMMAND

*/

probe perl.sub.call

{

    printf("%s => sub: %s, filename: %s, line: %d, package: %s\n",

        thread_indent(1), sub, filename, lineno, package)

}

probe perl.sub.return

{

    printf("%s <= sub: %s, filename: %s, line: %d, package: %s\n",

        thread_indent(-1), sub, filename, lineno, package)

}