https://docs.oracle.com/cd/E88353_01/html/E37846/dtrace-fprinta-3dtrace.html
dtrace_fprinta - man pages section 3: Extended Library Functions, Volume 2
dtrace_printf_create , dtrace_printa_create , dtrace_format_lookup , dtrace_printf_format , dtrace_fprinta , dtrace_fprintf , dtrace_system , dtrace_freopen -...
man pagesextended librarydtracesection