mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-12 06:10:10 +00:00
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/* OpenRISC helper for the clone syscall.
|
|
Copyright (C) 2022-2023 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdarg.h>
|
|
#include <sysdep.h>
|
|
|
|
extern int __or1k_clone (int (*fn)(void *), void *child_stack,
|
|
int flags, void *arg, pid_t *ptid,
|
|
void *tls, pid_t *ctid);
|
|
|
|
|
|
/* The OpenRISC ABI uses the stack for varargs like those using in clone
|
|
but the linux syscall ABI uses registers.
|
|
This function moves from varargs to regs. */
|
|
int
|
|
__clone (int (*fn)(void *), void *child_stack,
|
|
int flags, void *arg, ...
|
|
/* pid_t *ptid, struct user_desc *tls, pid_t *ctid */ )
|
|
{
|
|
void *ptid;
|
|
void *tls;
|
|
void *ctid;
|
|
va_list ap;
|
|
int err;
|
|
|
|
va_start (ap, arg);
|
|
ptid = va_arg (ap, void *);
|
|
tls = va_arg (ap, void *);
|
|
ctid = va_arg (ap, void *);
|
|
va_end (ap);
|
|
|
|
/* Sanity check the arguments */
|
|
err = -EINVAL;
|
|
if (!fn)
|
|
goto syscall_error;
|
|
if (!child_stack)
|
|
goto syscall_error;
|
|
|
|
return __or1k_clone (fn, child_stack, flags, arg, ptid, tls, ctid);
|
|
|
|
syscall_error:
|
|
__set_errno (-err);
|
|
return -1;
|
|
}
|
|
libc_hidden_def (__clone)
|
|
weak_alias (__clone, clone)
|