/* SPDX-License-Identifier: GPL-2.0-only *//* * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) */ #ifndef _ASM_ARC_SYSCALL_H#define _ASM_ARC_SYSCALL_H  1 #include <uapi/linux/audit.h>#include <linux/err.h>#include <linux/sched.h>#include <asm/unistd.h>#include <asm/ptrace.h>		/* in_syscall() */ extern void *sys_call_table[]; static inline longsyscall_get_nr(struct task_struct *task, struct pt_regs *regs){	if (user_mode(regs) && in_syscall(regs))		return regs->r8;	else		return -1;} static inline voidsyscall_set_nr(struct task_struct *task, struct pt_regs *regs, int nr){	/*	 * Unlike syscall_get_nr(), syscall_set_nr() can be called only when	 * the target task is stopped for tracing on entering syscall, so	 * there is no need to have the same check syscall_get_nr() has.	 */	regs->r8 = nr;} static inline voidsyscall_rollback(struct task_struct *task, struct pt_regs *regs){	regs->r0 = regs->orig_r0;} static inline longsyscall_get_error(struct task_struct *task, struct pt_regs *regs){	/* 0 if syscall succeeded, otherwise -Errorcode */	return IS_ERR_VALUE(regs->r0) ? regs->r0 : 0;} static inline longsyscall_get_return_value(struct task_struct *task, struct pt_regs *regs){	return regs->r0;} static inline voidsyscall_set_return_value(struct task_struct *task, struct pt_regs *regs,			 int error, long val){	regs->r0 = (long) error ?: val;} /* * @i:      argument index [0,5] * @n:      number of arguments; n+i must be [1,6]. */static inline voidsyscall_get_arguments(struct task_struct *task, struct pt_regs *regs,		      unsigned long *args){	unsigned long *inside_ptregs = &(regs->r0);	unsigned int n = 6;	unsigned int i = 0; 	while (n--) {		args[i++] = (*inside_ptregs);		inside_ptregs--;	}} static inline voidsyscall_set_arguments(struct task_struct *task, struct pt_regs *regs,		      unsigned long *args){	unsigned long *inside_ptregs = &regs->r0;	unsigned int n = 6;	unsigned int i = 0; 	while (n--) {		*inside_ptregs = args[i++];		inside_ptregs--;	}} static inline intsyscall_get_arch(struct task_struct *task){	return IS_ENABLED(CONFIG_ISA_ARCOMPACT)		? (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)			? AUDIT_ARCH_ARCOMPACTBE : AUDIT_ARCH_ARCOMPACT)		: (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)			? AUDIT_ARCH_ARCV2BE : AUDIT_ARCH_ARCV2);} #endif