30 	unsigned long regs[32];  member
66 #define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER)  argument
68 static inline int is_syscall_success(struct pt_regs *regs)  in is_syscall_success()  argument
70 	return !regs->regs[7];  in is_syscall_success()
73 static inline long regs_return_value(struct pt_regs *regs)  in regs_return_value()  argument
75 	if (is_syscall_success(regs))  in regs_return_value()
76 		return regs->regs[2];  in regs_return_value()
78 		return -regs->regs[2];  in regs_return_value()
81 #define instruction_pointer(regs) ((regs)->cp0_epc)  argument
82 #define profile_pc(regs) instruction_pointer(regs)  argument
84 extern asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall);
85 extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
89 static inline void die_if_kernel(const char *str, struct pt_regs *regs)  in die_if_kernel()  argument
91 	if (unlikely(!user_mode(regs)))  in die_if_kernel()
92 		die(str, regs);  in die_if_kernel()
103 static inline unsigned long user_stack_pointer(struct pt_regs *regs)  in user_stack_pointer()  argument
105 	return regs->regs[29];  in user_stack_pointer()
108 static inline void user_stack_pointer_set(struct pt_regs *regs,  in user_stack_pointer_set()  argument
111 	regs->regs[29] = val;  in user_stack_pointer_set()