1/*
 2 * Syscall support for the Hexagon architecture
 3 *
 4 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 and
 8 * only version 2 as published by the Free Software Foundation.
 9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 * 02110-1301, USA.
19 */
20
21#ifndef _ASM_HEXAGON_SYSCALL_H
22#define _ASM_HEXAGON_SYSCALL_H
23
 
 
 
 
24typedef long (*syscall_fn)(unsigned long, unsigned long,
25	unsigned long, unsigned long,
26	unsigned long, unsigned long);
27
28#include <asm-generic/syscalls.h>
29
30extern void *sys_call_table[];
31
32static inline long syscall_get_nr(struct task_struct *task,
33				  struct pt_regs *regs)
34{
35	return regs->r06;
36}
37
38static inline void syscall_get_arguments(struct task_struct *task,
39					 struct pt_regs *regs,
40					 unsigned int i, unsigned int n,
41					 unsigned long *args)
42{
43	BUG_ON(i + n > 6);
44	memcpy(args, &(&regs->r00)[i], n * sizeof(args[0]));
 
 
 
 
 
45}
 
 
 
 
 
 
 
 
 
 
 
 
46#endif

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Syscall support for the Hexagon architecture
 4 *
 5 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 6 */
 7
 8#ifndef _ASM_HEXAGON_SYSCALL_H
 9#define _ASM_HEXAGON_SYSCALL_H
10
11#include <uapi/linux/audit.h>
12#include <linux/err.h>
13#include <asm/ptrace.h>
14
15typedef long (*syscall_fn)(unsigned long, unsigned long,
16	unsigned long, unsigned long,
17	unsigned long, unsigned long);
18
19#include <asm-generic/syscalls.h>
20
21extern void *sys_call_table[];
22
23static inline long syscall_get_nr(struct task_struct *task,
24				  struct pt_regs *regs)
25{
26	return regs->r06;
27}
28
29static inline void syscall_get_arguments(struct task_struct *task,
30					 struct pt_regs *regs,
 
31					 unsigned long *args)
32{
33	memcpy(args, &(&regs->r00)[0], 6 * sizeof(args[0]));
34}
35
36static inline long syscall_get_error(struct task_struct *task,
37				     struct pt_regs *regs)
38{
39	return IS_ERR_VALUE(regs->r00) ? regs->r00 : 0;
40}
41
42static inline long syscall_get_return_value(struct task_struct *task,
43					    struct pt_regs *regs)
44{
45	return regs->r00;
46}
47
48static inline int syscall_get_arch(struct task_struct *task)
49{
50	return AUDIT_ARCH_HEXAGON;
51}
52
53#endif