1/* Copyright 2003-2021 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library. If not, see 16 <https://www.gnu.org/licenses/>. */ 17 18#include <sysdep.h> 19 20#include <sys/asm.h> 21 22/* Sign-extend the ioctl number, since the kernel wants it as a 23 sign-extended 32-bit value, but our prototype is that of a long. */ 24 25 .text 26ENTRY (__ioctl) 27 sll a1, a1, 0 28 li v0, __NR_ioctl 29 syscall /* Do the system call. */ 30 bne a3, zero, L(error) 31 ret 32 33L(error): 34 SETUP_GP64_REG (a0, __ioctl) 35 PTR_LA t9, __syscall_error 36 RESTORE_GP64_REG 37 jr t9 38 39PSEUDO_END (__ioctl) 40 41libc_hidden_def (__ioctl) 42weak_alias (__ioctl, ioctl) 43