// SPDX-License-Identifier: GPL-2.0/* * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) */ #include <linux/stddef.h>#include <linux/module.h>#include <linux/fs.h>#include <linux/ptrace.h>#include <linux/sched/mm.h>#include <linux/sched/task.h>#include <linux/sched/task_stack.h>#include <linux/slab.h>#include <asm/current.h>#include <asm/processor.h>#include <linux/uaccess.h>#include <as-layout.h>#include <mem_user.h>#include <skas.h>#include <os.h> void flush_thread(void){	void *data = NULL;	int ret; 	arch_flush_thread(&current->thread.arch); 	ret = unmap(&current->mm->context.id, 0, TASK_SIZE, 1, &data);	if (ret) {		printk(KERN_ERR "flush_thread - clearing address space failed, "		       "err = %d\n", ret);		force_sig(SIGKILL);	}	get_safe_registers(current_pt_regs()->regs.gp,			   current_pt_regs()->regs.fp); 	__switch_mm(&current->mm->context.id);} void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp){	PT_REGS_IP(regs) = eip;	PT_REGS_SP(regs) = esp;	current->ptrace &= ~PT_DTRACE;#ifdef SUBARCH_EXECVE1	SUBARCH_EXECVE1(regs->regs);#endif}EXPORT_SYMBOL(start_thread);