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src/linux/ia64/get_syscall_args.c
32 строки
730 B
Dmitry V. Levin
Use loop initial declarations
05 ноя 2021, 11:00
05 ноя 2021, 11:00
462fa29
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/* * Copyright (c) 2015-2021 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); for (unsigned int i = 0; i < n_args(tcp); ++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; }