Dmitry V. Levin
92e347b556
We do our best to keep copyright headers up to date, yet git history provides better information on this subject and is more accurate than copyright headers.
34 lines
740 B
C
34 lines
740 B
C
/*
|
|
* Copyright (c) 2015-2018 The strace developers.
|
|
* All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: LGPL-2.1-or-later
|
|
*/
|
|
|
|
#include <asm/rse.h>
|
|
|
|
/* Return -1 on error or 1 on success (never 0!). */
|
|
static int
|
|
arch_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;
|
|
}
|