/*
 * Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * 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 "usr_lib_define.h"
#include "usr_lib_ops.h"
#include "syscall.h"
#include "stdint.h"
#include "pthread_impl.h"

_LIBC_DATA_SECTION static UsrLibcOps g_libcOps;

extern void _lib_ops_init(UsrLibcOps *ops);
typedef void (*box_start)(uintptr_t libcOps);

_LIBC_TEXT_SECTION int __set_thread_area(void *p)
{
	return __syscall(SYS_set_thread_area, p);
}

_LIBC_TEXT_ENTRY int _ulibc_start(uintptr_t main)
{
	box_start start = (box_start)main;
	_lib_ops_init(&g_libcOps);

	struct pthread *thread_area = 0x10000000;
	if (thread_area == NULL) {
		while (1);
	}

	memset(thread_area, 0, sizeof(struct pthread));

	thread_area->tid = __syscall(SYS_gettid);
	__set_thread_area(TP_ADJ(thread_area));

	start(&g_libcOps);
	while (1);
}