# Basic ring_buffer test.

proc ring_buffer_p {} {
    set path "/proc/kallsyms"
    if {! [catch {exec grep -q ring_buffer_consume $path} dummy]} {
        return 1
    } else {
        return 0
    }
}

set script {
    probe begin {
	printf("systemtap starting probe\n")
	exit()
    }
    probe end {
	printf("systemtap ending probe\n")
	printf("Hello")
	printf("World\n")
    }
}
set output "HelloWorld\r\n"

set TEST_NAME "RING_BUFFER"
if {![installtest_p]} {
    untested "$TEST_NAME"
} elseif {![ring_buffer_p]} {
    untested "$TEST_NAME : no kernel ring_buffer support found"
} else {
    stap_run $TEST_NAME no_load $output -DSTP_USE_RING_BUFFER -e $script
}