1  /* Copyright (C) 2021-2023 Free Software Foundation, Inc.
       2     Contributed by Oracle.
       3  
       4     This file is part of GNU Binutils.
       5  
       6     This program is free software; you can redistribute it and/or modify
       7     it under the terms of the GNU General Public License as published by
       8     the Free Software Foundation; either version 3, or (at your option)
       9     any later version.
      10  
      11     This program is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14     GNU General Public License for more details.
      15  
      16     You should have received a copy of the GNU General Public License
      17     along with this program; if not, write to the Free Software
      18     Foundation, 51 Franklin Street - Fifth Floor, Boston,
      19     MA 02110-1301, USA.  */
      20  
      21  #include "config.h"
      22  #include <time.h>
      23  #include "gp-time.h"
      24  
      25  /*  CLOCK_MONOTONIC
      26      Clock that cannot be set and represents monotonic time since some
      27               unspecified starting point.  */
      28  
      29  static hrtime_t
      30  linux_gethrtime (void)
      31  {
      32    struct timespec tp;
      33    hrtime_t rc = 0;
      34  
      35  #ifdef CLOCK_MONOTONIC_RAW
      36    int r = clock_gettime (CLOCK_MONOTONIC_RAW, &tp);
      37  #else
      38    int r = clock_gettime (CLOCK_MONOTONIC, &tp);
      39  #endif
      40  
      41    if (r == 0)
      42      rc = ((hrtime_t) tp.tv_sec)*1000000000 + (hrtime_t) tp.tv_nsec;
      43    return rc;
      44  }
      45  
      46  hrtime_t (*__collector_gethrtime)() = linux_gethrtime;