1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_M68K_SYSCALL_H
3 #define _ASM_M68K_SYSCALL_H
4
5 #include <uapi/linux/audit.h>
6
7 #include <asm/unistd.h>
8
9 extern const unsigned long sys_call_table[];
10
syscall_get_nr(struct task_struct * task,struct pt_regs * regs)11 static inline int syscall_get_nr(struct task_struct *task,
12 struct pt_regs *regs)
13 {
14 return regs->orig_d0;
15 }
16
syscall_set_nr(struct task_struct * task,struct pt_regs * regs,int nr)17 static inline void syscall_set_nr(struct task_struct *task,
18 struct pt_regs *regs,
19 int nr)
20 {
21 regs->orig_d0 = nr;
22 }
23
syscall_rollback(struct task_struct * task,struct pt_regs * regs)24 static inline void syscall_rollback(struct task_struct *task,
25 struct pt_regs *regs)
26 {
27 regs->d0 = regs->orig_d0;
28 }
29
syscall_get_error(struct task_struct * task,struct pt_regs * regs)30 static inline long syscall_get_error(struct task_struct *task,
31 struct pt_regs *regs)
32 {
33 unsigned long error = regs->d0;
34
35 return IS_ERR_VALUE(error) ? error : 0;
36 }
37
syscall_get_return_value(struct task_struct * task,struct pt_regs * regs)38 static inline long syscall_get_return_value(struct task_struct *task,
39 struct pt_regs *regs)
40 {
41 return regs->d0;
42 }
43
syscall_set_return_value(struct task_struct * task,struct pt_regs * regs,int error,long val)44 static inline void syscall_set_return_value(struct task_struct *task,
45 struct pt_regs *regs,
46 int error, long val)
47 {
48 regs->d0 = (long)error ?: val;
49 }
50
syscall_get_arguments(struct task_struct * task,struct pt_regs * regs,unsigned long * args)51 static inline void syscall_get_arguments(struct task_struct *task,
52 struct pt_regs *regs,
53 unsigned long *args)
54 {
55 args[0] = regs->orig_d0;
56 args++;
57
58 memcpy(args, ®s->d1, 5 * sizeof(args[0]));
59 }
60
syscall_set_arguments(struct task_struct * task,struct pt_regs * regs,unsigned long * args)61 static inline void syscall_set_arguments(struct task_struct *task,
62 struct pt_regs *regs,
63 unsigned long *args)
64 {
65 regs->orig_d0 = args[0];
66 args++;
67
68 memcpy(®s->d1, args, 5 * sizeof(args[0]));
69 }
70
syscall_get_arch(struct task_struct * task)71 static inline int syscall_get_arch(struct task_struct *task)
72 {
73 return AUDIT_ARCH_M68K;
74 }
75
76 #endif /* _ASM_M68K_SYSCALL_H */
77