| /* Implement runtime actions for CHILL. |
| Copyright (C) 1992,1993 Free Software Foundation, Inc. |
| Author: Wilfried Moser |
| |
| This file is part of GNU CC. |
| |
| GNU CC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU CC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU CC; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| /* As a special exception, if you link this library with other files, |
| some of which are compiled with GCC, to produce an executable, |
| this library does not by itself cause the resulting executable |
| to be covered by the GNU General Public License. |
| This exception does not however invalidate any other reasons why |
| the executable file might be covered by the GNU General Public License. */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <string.h> |
| |
| #include "rtltypes.h" |
| #include "iomodes.h" |
| |
| /* type definitions */ |
| typedef void (*init_ptr) (); |
| typedef void (*rts_init_ptr) (int *argc, char *argv []); |
| |
| typedef struct INIT_LIST |
| { |
| init_ptr code; |
| struct INIT_LIST *forward; |
| } InitList; |
| |
| InitList *_ch_init_list = 0; |
| |
| /* force linker to get correct RTS functions */ |
| extern rts_init_ptr __RTS_INIT__; |
| extern init_ptr __RTS_MAIN_LOOP__; |
| extern init_ptr __RTS_FETCH_NUMBERS__; |
| extern init_ptr __RTS_FETCH_NAMES__; |
| static init_ptr *rts_dummies[4] = |
| { |
| &__RTS_INIT__, |
| &__RTS_MAIN_LOOP__, |
| &__RTS_FETCH_NUMBERS__, |
| &__RTS_FETCH_NAMES__, |
| }; |
| |
| /* chill argc and argv */ |
| int chill_argc = 0; |
| TVaryingCharType **chill_argv = NULL; |
| |
| /* the program name for debugging purpose */ |
| char *progname = 0; |
| |
| extern void *__xmalloc_ (); |
| |
| /* |
| * function __xrealloc_ |
| * |
| * parameter: |
| * ptr pointer to reallocate |
| * size new number of bytes |
| * |
| * returns: |
| * void* |
| * |
| * abstract: |
| * This is the general reallocation routine for libchill |
| * |
| */ |
| |
| void * |
| __xrealloc_ (ptr, size) |
| void *ptr; |
| int size; |
| { |
| void *tmp = realloc (ptr, size); |
| |
| if (!tmp) |
| { |
| fprintf (stderr, "ChillLib: Out of heap space.\n"); |
| fflush (stderr); |
| exit (ENOMEM); |
| } |
| return (tmp); |
| } /* __xrealloc_ */ |
| |
| static void |
| setup_argc_argv (argc, argv) |
| int argc; |
| char *argv[]; |
| { |
| int i; |
| |
| chill_argv = __xmalloc_ ((argc + 1) * sizeof (TVaryingCharType *)); |
| for (i = 0; i < argc; i++) |
| { |
| chill_argv[i] = __xmalloc_ (sizeof (TVaryingCharType) + strlen (argv[i]) + 1); |
| chill_argv[i]->len = strlen (argv[i]); |
| strcpy (chill_argv[i]->body, argv[i]); |
| } |
| chill_argv[chill_argc = argc] = NULL; |
| |
| if ((progname = strrchr (argv[0], '/')) == 0) |
| progname = argv[0]; |
| else |
| progname++; |
| |
| } /* setup_argc_argv */ |
| |
| extern void __setexceptionStack (); |
| |
| /*--------- main entry for each CHILL - program ----------*/ |
| int |
| main (argc, argv) |
| int argc; |
| char *argv []; |
| { |
| /* call look up for tasking */ |
| (*__RTS_INIT__) (&argc, argv); |
| |
| /* setup argc and argv */ |
| setup_argc_argv (argc, argv); |
| |
| /* clear exception stack */ |
| __setexceptionStack (0); |
| |
| /* now call code at module level */ |
| while (_ch_init_list) |
| { |
| if (_ch_init_list->code) |
| (*(_ch_init_list->code)) (); |
| _ch_init_list = _ch_init_list->forward; |
| } |
| |
| /* if we have rts linked, something will be done, else just return */ |
| (*__RTS_MAIN_LOOP__) (); |
| |
| return (0); |
| |
| } /* main */ |