| /* vfork for Linux, RISC-V version. |
| Copyright (C) 2005-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| 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/>. */ |
| |
| /* vfork() is just a special case of clone(). */ |
| |
| #include <sys/asm.h> |
| #include <sysdep.h> |
| #define __ASSEMBLY__ |
| #include <linux/sched.h> |
| #include <asm/signal.h> |
| |
| .text |
| LEAF (__libc_vfork) |
| |
| li a0, (CLONE_VFORK | CLONE_VM | SIGCHLD) |
| mv a1, sp |
| |
| li a7, __NR_clone |
| scall |
| |
| bltz a0, 1f |
| ret |
| |
| 1: j __syscall_error |
| END (__libc_vfork) |
| |
| weak_alias (__libc_vfork, vfork) |
| strong_alias (__libc_vfork, __vfork) |
| libc_hidden_def (__vfork) |
