155 lines
3.7 KiB
C
155 lines
3.7 KiB
C
/* 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, 675 Mass Ave, Cambridge, MA 02139, 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 */
|