1 #ifndef __ASM_SH_SYSCALL_64_H
2 #define __ASM_SH_SYSCALL_64_H
4 #include <linux/kernel.h>
5 #include <linux/sched.h>
6 #include <asm/ptrace.h>
8 /* The system call number is given by the user in R9 */
9 static inline long syscall_get_nr(struct task_struct *task,
12 return (regs->syscall_nr >= 0) ? regs->regs[9] : -1L;
15 static inline void syscall_rollback(struct task_struct *task,
19 * XXX: This needs some thought. On SH we don't
20 * save away the original R9 value anywhere.
24 static inline bool syscall_has_error(struct pt_regs *regs)
26 return (regs->sr & 0x1) ? true : false;
28 static inline void syscall_set_error(struct pt_regs *regs)
32 static inline void syscall_clear_error(struct pt_regs *regs)
37 static inline long syscall_get_error(struct task_struct *task,
40 return syscall_has_error(regs) ? regs->regs[9] : 0;
43 static inline long syscall_get_return_value(struct task_struct *task,
49 static inline void syscall_set_return_value(struct task_struct *task,
54 syscall_set_error(regs);
55 regs->regs[9] = -error;
57 syscall_clear_error(regs);
62 static inline void syscall_get_arguments(struct task_struct *task,
64 unsigned int i, unsigned int n,
68 memcpy(args, ®s->regs[2 + i], n * sizeof(args[0]));
71 static inline void syscall_set_arguments(struct task_struct *task,
73 unsigned int i, unsigned int n,
74 const unsigned long *args)
77 memcpy(®s->regs[2 + i], args, n * sizeof(args[0]));
80 #endif /* __ASM_SH_SYSCALL_64_H */