/*
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright © 2020 Keith Packard
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdlib.h>
#include <semihost.h>

int
main(void)
{
	struct sys_semihost_block block;

	/* Initialize to invalid values */
	block.heap_base = (void *) (uintptr_t) 4;
	block.heap_limit = (void *) (uintptr_t) 3;
	block.stack_limit = (void *) (uintptr_t) 2;
	block.stack_base = (void *) (uintptr_t) 1;

	sys_semihost_heapinfo(&block);
	if (block.heap_base != NULL && block.heap_limit != NULL) {
		/* Error if heap base is above limit */
		if ((uintptr_t) block.heap_base >= (uintptr_t) block.heap_limit) {
			printf("heap base %p >= heap_limit %p\n",
			       block.heap_base, block.heap_limit);
			exit(1);
		}
	}
	if (block.stack_base != NULL && block.stack_limit != NULL) {
		/* Error if stack base is below limit */
		if ((uintptr_t) block.stack_base < (uintptr_t) block.stack_limit) {
			printf("stack base %p < stack_limit %p\n",
			       block.stack_base, block.stack_limit);
			exit(2);
		}
	}
	exit(0);
}
