1 /* SPDX-License-Identifier: GPL-2.0-only */
12 typedef long (*syscall_fn_t)(const struct pt_regs *regs);
21 				 struct pt_regs *regs)  in syscall_get_nr()  argument
23 	return regs->syscallno;  in syscall_get_nr()
27 				    struct pt_regs *regs)  in syscall_rollback()  argument
29 	regs->regs[0] = regs->orig_x0;  in syscall_rollback()
34 				     struct pt_regs *regs)  in syscall_get_error()  argument
36 	unsigned long error = regs->regs[0];  in syscall_get_error()
45 					    struct pt_regs *regs)  in syscall_get_return_value()  argument
47 	return regs->regs[0];  in syscall_get_return_value()
51 					    struct pt_regs *regs,  in syscall_set_return_value()  argument
60 	regs->regs[0] = val;  in syscall_set_return_value()
66 					 struct pt_regs *regs,  in syscall_get_arguments()  argument
69 	args[0] = regs->orig_x0;  in syscall_get_arguments()
72 	memcpy(args, &regs->regs[1], 5 * sizeof(args[0]));  in syscall_get_arguments()
76 					 struct pt_regs *regs,  in syscall_set_arguments()  argument
79 	regs->orig_x0 = args[0];  in syscall_set_arguments()
82 	memcpy(&regs->regs[1], args, 5 * sizeof(args[0]));  in syscall_set_arguments()
87  * AArch64 has the same system calls both on little- and big- endian.