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433fe39f67
Like fork and clone the clone3 syscall needs a wrapper to save callee
saved registers, which is required by the OpenRISC ABI. This came up
after auditing code following a discussion with Rob Landley and Arnd
Bergmann [0].
Tested with the clone3 kselftests and there were no issues.
[0] https://lore.kernel.org/all/41206fc7-f8ce-98aa-3718-ba3e1431e320@landley.net/T/#m9c0cdb2703813b9df4da04cf6b30de1f1aa89944
Fixes: 07e83dfbe1 ("openrisc: Enable the clone3 syscall")
Cc: Rob Landley <rob@landley.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stafford Horne <shorne@gmail.com>
33 lines
969 B
C
33 lines
969 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* OpenRISC Linux
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*
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* Linux architectural port borrowing liberally from similar works of
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* others. All original copyrights apply as per the original source
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* declaration.
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*
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* OpenRISC implementation:
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* Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
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* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
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* et al.
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*/
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#ifndef __ASM_OPENRISC_SYSCALLS_H
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#define __ASM_OPENRISC_SYSCALLS_H
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asmlinkage long sys_or1k_atomic(unsigned long type, unsigned long *v1,
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unsigned long *v2);
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#include <asm-generic/syscalls.h>
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asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp,
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void __user *parent_tid, void __user *child_tid, int tls);
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asmlinkage long __sys_clone3(struct clone_args __user *uargs, size_t size);
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asmlinkage long __sys_fork(void);
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#define sys_clone __sys_clone
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#define sys_clone3 __sys_clone3
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#define sys_fork __sys_fork
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#endif /* __ASM_OPENRISC_SYSCALLS_H */
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