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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 9extern const unsigned long sys_call_table[]; 10 11static inline int syscall_get_nr(struct task_struct *task, 12 struct pt_regs *regs) 13{ 14 return regs->orig_d0; 15} 16 17static 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 24static inline void syscall_rollback(struct task_struct *task, 25 struct pt_regs *regs) 26{ 27 regs->d0 = regs->orig_d0; 28} 29 30static 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 38static inline long syscall_get_return_value(struct task_struct *task, 39 struct pt_regs *regs) 40{ 41 return regs->d0; 42} 43 44static 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 51static 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, &regs->d1, 5 * sizeof(args[0])); 59} 60 61static 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(&regs->d1, args, 5 * sizeof(args[0])); 69} 70 71static inline int syscall_get_arch(struct task_struct *task) 72{ 73 return AUDIT_ARCH_M68K; 74} 75 76#endif /* _ASM_M68K_SYSCALL_H */