1 #ifndef __ASM_MICROBLAZE_SYSCALL_H
2 #define __ASM_MICROBLAZE_SYSCALL_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 R12 */
9 static inline long syscall_get_nr(struct task_struct *task,
15 static inline void syscall_rollback(struct task_struct *task,
21 static inline long syscall_get_error(struct task_struct *task,
24 return IS_ERR_VALUE(regs->r3) ? regs->r3 : 0;
27 static inline long syscall_get_return_value(struct task_struct *task,
33 static inline void syscall_set_return_value(struct task_struct *task,
43 static inline microblaze_reg_t microblaze_get_syscall_arg(struct pt_regs *regs,
47 case 5: return regs->r10;
48 case 4: return regs->r9;
49 case 3: return regs->r8;
50 case 2: return regs->r7;
51 case 1: return regs->r6;
52 case 0: return regs->r5;
59 static inline void microblaze_set_syscall_arg(struct pt_regs *regs,
81 static inline void syscall_get_arguments(struct task_struct *task,
83 unsigned int i, unsigned int n,
87 *args++ = microblaze_get_syscall_arg(regs, i++);
90 static inline void syscall_set_arguments(struct task_struct *task,
92 unsigned int i, unsigned int n,
93 const unsigned long *args)
96 microblaze_set_syscall_arg(regs, i++, *args++);
99 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
100 asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
102 #endif /* __ASM_MICROBLAZE_SYSCALL_H */