| /* Copyright (C) 2011-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| |
| /* TILE-Gx specifies that "unsigned int" is sign extended in the high |
| 32 bits. But since the userspace API claims to be "unsigned long", |
| calls into __ioctl() will not be sign extended, but rather pass all |
| 64 bits of the argument. Therefore, when we pass the "request" |
| value to the kernel, we must explicitly sign-extend it to match the |
| kernel's internal use of "unsigned int" as the second argument, |
| which we do by casting to "unsigned int". */ |
| |
| #include <sysdep.h> |
| |
| .text |
| ENTRY (__ioctl) |
| FEEDBACK_ENTER(__ioctl) |
| { |
| addxi r1, r1, 0 |
| moveli TREG_SYSCALL_NR_NAME, __NR_ioctl |
| } |
| swint1 |
| BNEZ r1, 0f |
| jrp lr |
| PSEUDO_END (__ioctl) |
| weak_alias (__ioctl, ioctl) |
