libF77/main.c

   1 /*      $Id: main.c,v 1.3 2008/02/28 16:48:50 ragge Exp $       */
   2 /*
   3  * Copyright(C) Caldera International Inc. 2001-2002. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * Redistributions of source code and documentation must retain the above
  10  * copyright notice, this list of conditions and the following disclaimer.
  11  * Redistributions in binary form must reproduce the above copyright
  12  * notice, this list of conditionsand the following disclaimer in the
  13  * documentation and/or other materials provided with the distribution.
  14  * All advertising materials mentioning features or use of this software
  15  * must display the following acknowledgement:
  16  *      This product includes software developed or owned by Caldera
  17  *      International, Inc.
  18  * Neither the name of Caldera International, Inc. nor the names of other
  19  * contributors may be used to endorse or promote products derived from
  20  * this software without specific prior written permission.
  21  *
  22  * USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
  23  * INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  25  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  26  * DISCLAIMED.  IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OFLIABILITY, WHETHER IN CONTRACT,
  31  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  32  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33  * POSSIBILITY OF SUCH DAMAGE.
  34  */
  35 /* STARTUP PROCEDURE FOR UNIX FORTRAN PROGRAMS */
  36
  37 #include <stdio.h>
  38 #include <signal.h>
  39 #include <stdlib.h>
  40
  41 static void sigfdie(int), sigidie(int);
  42 static void sigdie(char *s);
  43 void MAIN__(void);
  44 void f_exit(void);
  45
  46 int xargc;
  47 char **xargv;
  48
  49 int
  50 main(int argc, char **argv, char **arge)
  51 {
  52
  53         xargc = argc;
  54         xargv = argv;
  55         signal(SIGFPE, sigfdie);        /* ignore underflow, enable overflow */
  56         signal(SIGIOT, sigidie);
  57         MAIN__();
  58         f_exit();
  59         return 0;
  60 }
  61
  62 static void
  63 sigfdie(int a)
  64 {
  65         sigdie("Floating Exception");
  66 }
  67
  68 static void
  69 sigidie(int a)
  70 {
  71         sigdie("IOT Trap");
  72 }
  73
  74 static void
  75 sigdie(char *s)
  76 {
  77         /* print error message, then clear buffers */
  78         fflush(stderr);
  79         fprintf(stderr, "%s\n", s);
  80         f_exit();
  81         fflush(stderr);
  82
  83         /* now get a core */
  84         signal(SIGIOT, 0);
  85         abort();
  86 }