lib/thread_entry.c

/*
 * Copyright (c) 2018 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/**
 * @file
 * @brief Thread entry
 *
 * This file provides the common thread entry function
 */

#include <kernel.h>

/*
 * Common thread entry point function (used by all threads)
 *
 * This routine invokes the actual thread entry point function and passes
 * it three arguments. It also handles graceful termination of the thread
 * if the entry point function ever returns.
 *
 * This routine does not return, and is marked as such so the compiler won't
 * generate preamble code that is only used by functions that actually return.
 */
FUNC_NORETURN void _thread_entry(k_thread_entry_t entry,
				 void *p1, void *p2, void *p3)
{
	entry(p1, p2, p3);

#ifdef CONFIG_MULTITHREADING
	k_thread_abort(k_current_get());
#else
	for (;;) {
		k_cpu_idle();
	}
#endif

	/*
	 * Compiler can't tell that k_thread_abort() won't return and issues a
	 * warning unless we tell it that control never gets this far.
	 */

	CODE_UNREACHABLE;
}