Edit File: ctime.stp
/* ctime.stp - Convert seconds to human readable date string. * * Copyright (C) 2012-2016 Red Hat, Inc. */ /* NB: functionally equivalent to linux/ctime.stp * This means unlike normal userspace ctime(), this version * returns time in UTC, without a final newline. */ %{ #include <string.h> #include <time.h> %} function ctime:string(epochsecs:long) %{ /* pure */ struct tm gmt; char buf[26]; const time_t t = STAP_ARG_epochsecs; if (gmtime_r(&t, &gmt) && asctime_r(&gmt, buf)) { char* newline = strchr(buf, '\n'); if (newline) *newline = '\0'; strlcpy (STAP_RETVALUE, buf, MAXSTRINGLEN); } else { #if STAP_COMPAT_VERSION <= STAP_VERSION(2,2) strlcpy(STAP_RETVALUE, "<invalid time>", MAXSTRINGLEN); #else CONTEXT->last_error = "Time cannot be converted"; #endif } %} function ctime:string() { return ctime(gettimeofday_s()) }