| #include <asm/rse.h> |
| |
| /* Return -1 on error or 1 on success (never 0!). */ |
| static int |
| get_syscall_args(struct tcb *tcp) |
| { |
| unsigned long *rbs_end = |
| (unsigned long *) ia64_regs.ar[PT_AUR_BSP]; |
| unsigned long sof = (ia64_regs.cfm >> 0) & 0x7f; |
| unsigned long sol = (ia64_regs.cfm >> 7) & 0x7f; |
| unsigned long *out0 = ia64_rse_skip_regs(rbs_end, -sof + sol); |
| unsigned int i; |
| |
| for (i = 0; i < tcp->s_ent->nargs; ++i) { |
| if (umove(tcp, |
| (unsigned long) ia64_rse_skip_regs(out0, i), |
| &tcp->u_arg[i]) < 0) { |
| if (errno == EPERM) |
| tcp->u_arg[i] = 0; |
| else |
| return -1; |
| } |
| } |
| |
| return 1; |
| } |
