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      1 /* Copyright (C) 2005-2022 Free Software Foundation, Inc.
      2    Contributed by Richard Henderson <rth (at) redhat.com>.
      3 
      4    This file is part of the GNU Offloading and Multi Processing Library
      5    (libgomp).
      6 
      7    Libgomp is free software; you can redistribute it and/or modify it
      8    under the terms of the GNU General Public License as published by
      9    the Free Software Foundation; either version 3, or (at your option)
     10    any later version.
     11 
     12    Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
     13    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
     14    FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
     15    more details.
     16 
     17    Under Section 7 of GPL version 3, you are granted additional
     18    permissions described in the GCC Runtime Library Exception, version
     19    3.1, as published by the Free Software Foundation.
     20 
     21    You should have received a copy of the GNU General Public License and
     22    a copy of the GCC Runtime Library Exception along with this program;
     23    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     24    <http://www.gnu.org/licenses/>.  */
     25 
     26 /* This file contains routines used to signal errors.  Most places in the
     27    OpenMP API do not make any provision for failure, so we can't just
     28    defer the decision on reporting the problem to the user; we must do it
     29    ourselves or not at all.  */
     30 /* ??? Is this about what other implementations do?  Assume stderr hasn't
     31    been pointed somewhere unsafe?  */
     32 
     33 #include "libgomp.h"
     34 #include <stdarg.h>
     35 #include <stdio.h>
     36 #include <stdlib.h>
     37 
     38 
     39 #undef gomp_vdebug
     40 void
     41 gomp_vdebug (int kind __attribute__ ((unused)), const char *msg, va_list list)
     42 {
     43   if (gomp_debug_var)
     44     vfprintf (stderr, msg, list);
     45 }
     46 
     47 #undef gomp_debug
     48 void
     49 gomp_debug (int kind, const char *msg, ...)
     50 {
     51   va_list list;
     52 
     53   va_start (list, msg);
     54   gomp_vdebug (kind, msg, list);
     55   va_end (list);
     56 }
     57 
     58 void
     59 gomp_verror (const char *fmt, va_list list)
     60 {
     61   fputs ("\nlibgomp: ", stderr);
     62   vfprintf (stderr, fmt, list);
     63   fputc ('\n', stderr);
     64 }
     65 
     66 void
     67 gomp_error (const char *fmt, ...)
     68 {
     69   va_list list;
     70 
     71   va_start (list, fmt);
     72   gomp_verror (fmt, list);
     73   va_end (list);
     74 }
     75 
     76 void
     77 gomp_vfatal (const char *fmt, va_list list)
     78 {
     79   gomp_verror (fmt, list);
     80   exit (EXIT_FAILURE);
     81 }
     82 
     83 void
     84 gomp_fatal (const char *fmt, ...)
     85 {
     86   va_list list;
     87 
     88   va_start (list, fmt);
     89   gomp_vfatal (fmt, list);
     90   va_end (list);
     91 }
     92 
     93 void
     94 GOMP_warning (const char *msg, size_t msglen)
     95 {
     96   if (msg && msglen == (size_t) -1)
     97     gomp_error ("error directive encountered: %s", msg);
     98   else if (msg)
     99     {
    100       fputs ("\nlibgomp: error directive encountered: ", stderr);
    101       fwrite (msg, 1, msglen, stderr);
    102       fputc ('\n', stderr);
    103     }
    104   else
    105     gomp_error ("error directive encountered");
    106 }
    107 
    108 void
    109 GOMP_error (const char *msg, size_t msglen)
    110 {
    111   if (msg && msglen == (size_t) -1)
    112     gomp_fatal ("fatal error: error directive encountered: %s", msg);
    113   else if (msg)
    114     {
    115       fputs ("\nlibgomp: fatal error: error directive encountered: ", stderr);
    116       fwrite (msg, 1, msglen, stderr);
    117       fputc ('\n', stderr);
    118       exit (EXIT_FAILURE);
    119     }
    120   else
    121     gomp_fatal ("fatal error: error directive encountered");
    122 }
    123