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src/linux/sparc64/get_syscall_args.c
35 строк
1 KB
Dmitry V. Levin
Update copyright headers
16 фев 2021, 11:00
16 фев 2021, 11:00
8fa8a88
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/* * Copyright (c) 2015-2021 The strace developers. * All rights reserved. * * SPDX-License-Identifier: LGPL-2.1-or-later */ /* Return -1 on error or 1 on success (never 0!). */ static int arch_get_syscall_args(struct tcb *tcp) { if (tcp->currpers == 1) { /* * Zero-extend from 32 bits. * Use truncate_klong_to_current_wordsize(tcp->u_arg[N]) * in syscall handlers * if you need to use *sign-extended* parameter. */ tcp->u_arg[0] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 0]; tcp->u_arg[1] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 1]; tcp->u_arg[2] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 2]; tcp->u_arg[3] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 3]; tcp->u_arg[4] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 4]; tcp->u_arg[5] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 5]; } else { tcp->u_arg[0] = sparc_regs.u_regs[U_REG_O0 + 0]; tcp->u_arg[1] = sparc_regs.u_regs[U_REG_O0 + 1]; tcp->u_arg[2] = sparc_regs.u_regs[U_REG_O0 + 2]; tcp->u_arg[3] = sparc_regs.u_regs[U_REG_O0 + 3]; tcp->u_arg[4] = sparc_regs.u_regs[U_REG_O0 + 4]; tcp->u_arg[5] = sparc_regs.u_regs[U_REG_O0 + 5]; } return 1; }