1 /* Return -1 on error or 1 on success (never 0!). */
2 static int
get_syscall_args(struct tcb * tcp)3 get_syscall_args(struct tcb *tcp)
4 {
5 	static const int syscall_regs[MAX_ARGS] = {
6 		4 * (REG_REG0+4),
7 		4 * (REG_REG0+5),
8 		4 * (REG_REG0+6),
9 		4 * (REG_REG0+7),
10 		4 * (REG_REG0  ),
11 		4 * (REG_REG0+1)
12 	};
13 	unsigned int i;
14 
15 	for (i = 0; i < tcp->s_ent->nargs; ++i)
16 		if (upeek(tcp->pid, syscall_regs[i], &tcp->u_arg[i]) < 0)
17 			return -1;
18 	return 1;
19 }
20