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