mirror of https://github.com/F-Stack/f-stack.git
41 lines
893 B
C
41 lines
893 B
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright(c) 2015 Intel Corporation.
|
|
* Copyright(c) Cavium, Inc. 2017.
|
|
* All rights reserved
|
|
* Copyright (C) 2012, Hasan Alayli <halayli@gmail.com>
|
|
* Portions derived from: https://github.com/halayli/lthread
|
|
* With permissions from Hasan Alayli to use them as BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef STACK_H
|
|
#define STACK_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include "lthread_int.h"
|
|
|
|
/*
|
|
* Sets up the initial stack for the lthread.
|
|
*/
|
|
static inline void
|
|
arch_set_stack(struct lthread *lt, void *func)
|
|
{
|
|
char *stack_top = (char *)(lt->stack) + lt->stack_size;
|
|
void **s = (void **)stack_top;
|
|
|
|
/* set initial context */
|
|
s[-3] = NULL;
|
|
s[-2] = (void *)lt;
|
|
lt->ctx.rsp = (void *)(stack_top - (4 * sizeof(void *)));
|
|
lt->ctx.rbp = (void *)(stack_top - (3 * sizeof(void *)));
|
|
lt->ctx.rip = func;
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* STACK_H_ */
|