1#include <asm/rse.h>
2
3/* Return -1 on error or 1 on success (never 0!). */
4static int
5get_syscall_args(struct tcb *tcp)
6{
7	unsigned long *rbs_end =
8		(unsigned long *) ia64_regs.ar[PT_AUR_BSP];
9	unsigned long sof = (ia64_regs.cfm >> 0) & 0x7f;
10	unsigned long sol = (ia64_regs.cfm >> 7) & 0x7f;
11	unsigned long *out0 = ia64_rse_skip_regs(rbs_end, -sof + sol);
12	unsigned int i;
13
14	for (i = 0; i < tcp->s_ent->nargs; ++i) {
15		if (umove(tcp,
16			  (unsigned long) ia64_rse_skip_regs(out0, i),
17			  &tcp->u_arg[i]) < 0) {
18			if (errno == EPERM)
19				tcp->u_arg[i] = 0;
20			else
21				return -1;
22		}
23	}
24
25	return 1;
26}
27