cmd_bootm.c

	image_header_t *hdr = images->legacy_hdr_os;

#if defined(CONFIG_FIT)
	if (!images->legacy_hdr_valid) {
		fit_unsupported_reset ("QNX");
		do_reset (cmdtp, flag, argc, argv);
	}
#endif

	sprintf(str, "%x", image_get_ep (hdr)); /* write entry-point into string */
	local_args[0] = argv[0];
	local_args[1] = str;	/* and provide it via the arguments */
	do_bootelf(cmdtp, 0, 2, local_args);
}
#endif

#if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
static void do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
			   int argc, char *argv[],
			   bootm_headers_t *images)
{
	ulong top;
	char *s, *cmdline;
	char **fwenv, **ss;
	int i, j, nxt, len, envno, envsz;
	bd_t *kbd;
	void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
	image_header_t *hdr = images->legacy_hdr_os;

#if defined(CONFIG_FIT)
	if (!images->legacy_hdr_valid) {
		fit_unsupported_reset ("ARTOS");
		do_reset (cmdtp, flag, argc, argv);
	}
#endif

	/*
	 * Booting an ARTOS kernel image + application
	 */

	/* this used to be the top of memory, but was wrong... */
#ifdef CONFIG_PPC
	/* get stack pointer */
	asm volatile ("mr %0,1" : "=r"(top) );
#endif
	debug ("## Current stack ends at 0x%08lX ", top);

	top -= 2048;		/* just to be sure */
	if (top > CFG_BOOTMAPSZ)
		top = CFG_BOOTMAPSZ;
	top &= ~0xF;

	debug ("=> set upper limit to 0x%08lX\n", top);

	/* first check the artos specific boot args, then the linux args*/
	if ((s = getenv( "abootargs")) == NULL && (s = getenv ("bootargs")) == NULL)
		s = "";

	/* get length of cmdline, and place it */
	len = strlen (s);
	top = (top - (len + 1)) & ~0xF;
	cmdline = (char *)top;
	debug ("## cmdline at 0x%08lX ", top);
	strcpy (cmdline, s);

	/* copy bdinfo */
	top = (top - sizeof (bd_t)) & ~0xF;
	debug ("## bd at 0x%08lX ", top);
	kbd = (bd_t *)top;
	memcpy (kbd, gd->bd, sizeof (bd_t));

	/* first find number of env entries, and their size */
	envno = 0;
	envsz = 0;
	for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
		for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
			;
		envno++;
		envsz += (nxt - i) + 1;	/* plus trailing zero */
	}
	envno++;	/* plus the terminating zero */
	debug ("## %u envvars total size %u ", envno, envsz);

	top = (top - sizeof (char **) * envno) & ~0xF;
	fwenv = (char **)top;
	debug ("## fwenv at 0x%08lX ", top);

	top = (top - envsz) & ~0xF;
	s = (char *)top;
	ss = fwenv;

	/* now copy them */
	for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
		for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
			;
		*ss++ = s;
		for (j = i; j < nxt; ++j)
			*s++ = env_get_char (j);
		*s++ = '\0';
	}
	*ss++ = NULL;	/* terminate */

	entry = (void (*)(bd_t *, char *, char **, ulong))image_get_ep (hdr);
	(*entry) (kbd, cmdline, fwenv, top);
}
#endif