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 /* arg0: a6, arg1: a3, arg2: a4, arg3: a5, arg4: a8, arg5: a9 */
6 static const int xtensaregs[MAX_ARGS] = {
7 REG_A_BASE + 6,
8 REG_A_BASE + 3,
9 REG_A_BASE + 4,
10 REG_A_BASE + 5,
11 REG_A_BASE + 8,
12 REG_A_BASE + 9
13 };
14 unsigned int i;
15
16 for (i = 0; i < tcp->s_ent->nargs; ++i)
17 if (upeek(tcp->pid, xtensaregs[i], &tcp->u_arg[i]) < 0)
18 return -1;
19 return 1;
20 }
21