mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 19:00:09 +00:00
36960f0c76
Contains the Linux system call interface, as well as the definitions of
a handful of system calls.
2018-01-29 Palmer Dabbelt <palmer@sifive.com>
* sysdeps/riscv/nptl/nptl-sysdep.S: New file.
* sysdeps/unix/sysv/linux/riscv/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/clone.S: Likewise.
* sysdeps/unix/sysv/linux/riscv/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/pt-vfork.S: Likewise.
* sysdeps/unix/sysv/linux/riscv/syscall.c: Likewise.
* sysdeps/unix/sysv/linux/riscv/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/riscv/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/vfork.S: Likewise.
45 lines
1.2 KiB
ArmAsm
45 lines
1.2 KiB
ArmAsm
/* 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)
|