libgomp/error.c

   1 /* Copyright (C) 2005-2021 Free Software Foundation, Inc.
   2    Contributed by Richard Henderson <rth@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 }