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편집 파일: timestamp_gtod.stp

// timestamp tapset -- gettimeofday variants // Copyright (C) 2012 Red Hat, Inc. // // This file is part of systemtap, and is free software. You can // redistribute it and/or modify it under the terms of the GNU General // Public License (GPL); either version 2, or (at your option) any // later version. // NB: functionally equivalent to linux/timestamp_gtod.stp %{ #include <sys/time.h> %} function gettimeofday_ns:long () { return gettimeofday_us() * 1000; // XXX available resolution isn't this high! } function gettimeofday_us:long () %{ /* pure */ /* unprivileged */ struct timeval tv; if (gettimeofday(&tv, NULL) == 0) STAP_RETVALUE = (uint64_t)tv.tv_sec * 1000000 + tv.tv_usec; %} function gettimeofday_ms:long () { return gettimeofday_us() / 1000; } function gettimeofday_s:long () { return gettimeofday_us() / 1000000; }