1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * OpenRISC Linux
4 *
5 * Linux architectural port borrowing liberally from similar works of
6 * others. All original copyrights apply as per the original source
7 * declaration.
8 *
9 * OpenRISC implementation:
10 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
11 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
12 * et al.
13 */
14
15 #ifndef __ASM_OPENRISC_SYSCALL_H__
16 #define __ASM_OPENRISC_SYSCALL_H__
17
18 #include <uapi/linux/audit.h>
19 #include <linux/err.h>
20 #include <linux/sched.h>
21
22 static inline int
23 syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
24 {
25 return regs->orig_gpr11;
26 }
27
28 static inline void
29 syscall_rollback(struct task_struct *task, struct pt_regs *regs)
30 {
31 regs->gpr[11] = regs->orig_gpr11;
32 }
33
34 static inline long
35 syscall_get_error(struct task_struct *task, struct pt_regs *regs)
36 {
37 return IS_ERR_VALUE(regs->gpr[11]) ? regs->gpr[11] : 0;
38 }
39
40 static inline long
41 syscall_get_return_value(struct task_struct *task, struct pt_regs *regs)
42 {
43 return regs->gpr[11];
44 }
45
46 static inline void
47 syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
48 int error, long val)
49 {
50 regs->gpr[11] = (long) error ?: val;
51 }
52
53 static inline void
54 syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
55 unsigned long *args)
56 {
57 memcpy(args, ®s->gpr[3], 6 * sizeof(args[0]));
58 }
59
60 static inline int syscall_get_arch(struct task_struct *task)
61 {
62 return AUDIT_ARCH_OPENRISC;
63 }
64 #endif
65
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.