libc/sysdeps/linux/common/gettimeofday.c

   1 /*
   2  * gettimeofday() for uClibc
   3  *
   4  * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
   5  *
   6  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   7  */
   8
   9 #include <sys/syscall.h>
  10 #include <sys/time.h>
  11
  12 #ifdef SHARED
  13 #include "ldso.h"
  14 #endif
  15
  16
  17 #ifdef __VDSO_SUPPORT__
  18 typedef int (*gettimeofday_func)(struct timeval * tv, __timezone_ptr_t tz);
  19 #endif
  20
  21 int gettimeofday(struct timeval * tv, __timezone_ptr_t tz) {
  22
  23     #ifdef __VDSO_SUPPORT__
  24         if ( _dl__vdso_gettimeofday != 0 ){
  25             gettimeofday_func func= _dl__vdso_gettimeofday;
  26             return func( tv, tz );
  27
  28         }else{
  29             _syscall2_body(int, gettimeofday, struct timeval *, tv, __timezone_ptr_t, tz)
  30         }
  31     #else
  32         _syscall2_body(int, gettimeofday, struct timeval *, tv, __timezone_ptr_t, tz)
  33     #endif
  34 }
  35
  36
  37 libc_hidden_def(gettimeofday)