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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* OpenRISC Linux
*
* Linux architectural port borrowing liberally from similar works of
* others. All original copyrights apply as per the original source
* declaration.
*
* OpenRISC implementation:
* Copyright (C) 2003 Matjaz Breskvar <[email protected]>
* Copyright (C) 2010-2011 Jonas Bonn <[email protected]>
* et al.
*/
#ifndef __ASM_OPENRISC_SYSCALL_H__
#define __ASM_OPENRISC_SYSCALL_H__
#include <uapi/linux/audit.h>
#include <linux/err.h>
#include <linux/sched.h>
static inline int
syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
{
return regs->orig_gpr11;
}
static inline void
syscall_rollback(struct task_struct *task, struct pt_regs *regs)
{
regs->gpr[11] = regs->orig_gpr11;
}
static inline long
syscall_get_error(struct task_struct *task, struct pt_regs *regs)
{
return IS_ERR_VALUE(regs->gpr[11]) ? regs->gpr[11] : 0;
}
static inline long
syscall_get_return_value(struct task_struct *task, struct pt_regs *regs)
{
return regs->gpr[11];
}
static inline void
syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
int error, long val)
{
regs->gpr[11] = (long) error ?: val;
}
static inline void
syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned long *args)
{
memcpy(args, ®s->gpr[3], 6 * sizeof(args[0]));
}
static inline void
syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
const unsigned long *args)
{
memcpy(®s->gpr[3], args, 6 * sizeof(args[0]));
}
static inline int syscall_get_arch(struct task_struct *task)
{
return AUDIT_ARCH_OPENRISC;
}
#endif