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# timeofday.exp
#
# This test is meant to make sure that our time functions can still be called
# from contexts where do_gettimeofday is unsafe (e.g. when xtime_lock is held).
# See bug #2525 for more details.
load_lib "stap_run.exp"
proc sleep_one_sec {} {
after 1000;
return 0;
}
set systemtap_script {
global timeofday
probe kernel.function("do_timer") {
timeofday = gettimeofday_us()
}
probe begin {
log("systemtap starting probe")
}
probe end {
log("systemtap ending probe")
printf("%d\n", timeofday)
}
}
set output_string "\\d+\\r\\n"
stap_run "timeofday test" sleep_one_sec $output_string -e $systemtap_script
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