#! /usr/bin env stap

global opens[4000]

function print_opens() {
	foreach ([exe, fn, wr] in opens-) {
		if (wr) str = "WR"
		else	str = "RD"

		printf("%4d %-20s: %s %s\n", opens[exe, fn, wr], exe, str, fn)
	}
}

probe kernel.function("sys_open") {
	fn = user_string($filename)
	if (substr(fn, 0, 6) == "/proc/" || substr(fn, 0, 5) == "/sys/")
		opens[execname(), fn, $flags & 1] ++
}

probe end {
	print_opens()
	exit()
}