/* Return -1 on error or 1 on success (never 0!). */ static int get_syscall_args(struct tcb *tcp) { /* arg0: a6, arg1: a3, arg2: a4, arg3: a5, arg4: a8, arg5: a9 */ static const int xtensaregs[MAX_ARGS] = { REG_A_BASE + 6, REG_A_BASE + 3, REG_A_BASE + 4, REG_A_BASE + 5, REG_A_BASE + 8, REG_A_BASE + 9 }; unsigned int i; for (i = 0; i < tcp->s_ent->nargs; ++i) if (upeek(tcp->pid, xtensaregs[i], &tcp->u_arg[i]) < 0) return -1; return 1; }