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155 lines
3.7 KiB
C
155 lines
3.7 KiB
C
/* Implement runtime actions for CHILL.
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Copyright (C) 1992,1993 Free Software Foundation, Inc.
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Author: Wilfried Moser
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* As a special exception, if you link this library with other files,
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some of which are compiled with GCC, to produce an executable,
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this library does not by itself cause the resulting executable
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to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why
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the executable file might be covered by the GNU General Public License. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include "rtltypes.h"
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#include "iomodes.h"
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/* type definitions */
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typedef void (*init_ptr) ();
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typedef void (*rts_init_ptr) (int *argc, char *argv []);
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typedef struct INIT_LIST
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{
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init_ptr code;
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struct INIT_LIST *forward;
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} InitList;
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InitList *_ch_init_list = 0;
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/* force linker to get correct RTS functions */
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extern rts_init_ptr __RTS_INIT__;
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extern init_ptr __RTS_MAIN_LOOP__;
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extern init_ptr __RTS_FETCH_NUMBERS__;
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extern init_ptr __RTS_FETCH_NAMES__;
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static init_ptr *rts_dummies[4] =
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{
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&__RTS_INIT__,
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&__RTS_MAIN_LOOP__,
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&__RTS_FETCH_NUMBERS__,
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&__RTS_FETCH_NAMES__,
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};
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/* chill argc and argv */
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int chill_argc = 0;
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TVaryingCharType **chill_argv = NULL;
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/* the program name for debugging purpose */
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char *progname = 0;
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extern void *__xmalloc_ ();
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/*
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* function __xrealloc_
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*
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* parameter:
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* ptr pointer to reallocate
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* size new number of bytes
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*
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* returns:
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* void*
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*
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* abstract:
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* This is the general reallocation routine for libchill
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*
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*/
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void *
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__xrealloc_ (ptr, size)
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void *ptr;
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int size;
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{
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void *tmp = realloc (ptr, size);
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if (!tmp)
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{
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fprintf (stderr, "ChillLib: Out of heap space.\n");
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fflush (stderr);
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exit (ENOMEM);
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}
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return (tmp);
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} /* __xrealloc_ */
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static void
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setup_argc_argv (argc, argv)
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int argc;
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char *argv[];
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{
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int i;
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chill_argv = __xmalloc_ ((argc + 1) * sizeof (TVaryingCharType *));
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for (i = 0; i < argc; i++)
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{
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chill_argv[i] = __xmalloc_ (sizeof (TVaryingCharType) + strlen (argv[i]) + 1);
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chill_argv[i]->len = strlen (argv[i]);
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strcpy (chill_argv[i]->body, argv[i]);
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}
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chill_argv[chill_argc = argc] = NULL;
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if ((progname = strrchr (argv[0], '/')) == 0)
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progname = argv[0];
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else
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progname++;
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} /* setup_argc_argv */
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extern void __setexceptionStack ();
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/*--------- main entry for each CHILL - program ----------*/
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int
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main (argc, argv)
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int argc;
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char *argv [];
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{
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/* call look up for tasking */
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(*__RTS_INIT__) (&argc, argv);
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/* setup argc and argv */
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setup_argc_argv (argc, argv);
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/* clear exception stack */
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__setexceptionStack (0);
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/* now call code at module level */
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while (_ch_init_list)
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{
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if (_ch_init_list->code)
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(*(_ch_init_list->code)) ();
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_ch_init_list = _ch_init_list->forward;
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}
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/* if we have rts linked, something will be done, else just return */
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(*__RTS_MAIN_LOOP__) ();
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return (0);
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} /* main */
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