Example #1
0
static void __CDECL
startup(register BASEPAGE *b)
{
	register int (*func)(long);
	register long arg;
	_setstack(((char *)b) + SIZE);
	func = (int (*)(long))b->p_dbase;
	arg = b->p_dlen;

	/* If this is a thread, it doesn't need
	 * own copy of the environment, right?
	 */
	Mfree(b->p_env);
	b->p_env = _base->p_env;

	/* copy from parents basepage for debuggers... */
	b->p_tbase = _base->p_tbase;
	b->p_tlen = _base->p_tlen;
	b->p_dbase = _base->p_dbase;
	b->p_dlen = _base->p_dlen;
	b->p_bbase = _base->p_bbase;
	b->p_blen = _base->p_blen;

	Pterm((*func)(arg));
}
Example #2
0
void _acc_main(void) {
	static char *acc_argv[] = { "", NULL }; /* no name and no arguments */

	if (_stksize == 0 || _stksize == -1L)
		_stksize = MINKEEP;

	if (_stksize < 0)
		_stksize = -_stksize;

//	if ((s = getenv("STACKSIZE")) != 0)
//		_stksize = atoi(s);

	/* stack on word boundary */
	_stksize &= 0xfffffffeL;

	if (_heapbase == 0) {
		_heapbase = (void *)Malloc(_stksize);
	}
	_setstack((char *) _heapbase + _stksize);

	/* this is an accessory */
	_app = 0;

	_main(1L, acc_argv, acc_argv);
	/*NOTREACHED*/
}
Example #3
0
void _crtinit(void)
{
	register BASEPAGE *bp;
	register long m;
	register long freemem;
	
	bp = _base;

	/* m = # bytes used by environment + args */
	m = parseargs(bp);

	/* make m the total number of bytes required by program sans stack/heap */
	m += (bp->p_tlen + bp->p_dlen + bp->p_blen + sizeof(BASEPAGE));
	m = (m + 3L) & (~3L);

	/* freemem the amount of free mem accounting for MINFREE at top */
	if ((freemem = (long)bp->p_hitpa - (long)bp - MINFREE - m) <= 0L)
		goto notenough;
	
	/* make m the total number of bytes including stack */
	m += _stksize;

	/* make sure there's enough room for the stack */
	if (((long)bp + m) > ((long)bp->p_hitpa - MINFREE))
		goto notenough;

	/* set up the new stack to bp + m */
	_setstack((char *)bp + m);

	/* shrink the TPA */
	(void)Mshrink(0, bp, m);

	Pterm(main());
	__builtin_unreachable();
	
notenough:
	(void) Cconws("Fatal error: insufficient memory\r\n"
	              "Hint: either decrease stack size using 'stack' command (not recomended)\r\n"
		          "      or increase TPA_INITIALMEM value in mint.cnf.\r\n");
	Pterm(-1);
	__builtin_unreachable();
}