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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2006 Roman Divacky
* Copyright (c) 2013 Dmitry Chagin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LINUX_EMUL_H_
#define _LINUX_EMUL_H_
struct image_params;
/*
* modeled after similar structure in NetBSD
* this will be extended as we need more functionality
*/
struct linux_emuldata {
int *child_set_tid; /* in clone(): Child's TID to set on clone */
int *child_clear_tid;/* in clone(): Child's TID to clear on exit */
int flags; /* thread emuldata flags */
int em_tid; /* thread id */
struct linux_robust_list_head *robust_futexes;
};
struct linux_emuldata *em_find(struct thread *);
int linux_exec_imgact_try(struct image_params *);
void linux_proc_init(struct thread *, struct thread *, int);
void linux_proc_exit(void *, struct proc *);
void linux_schedtail(struct thread *);
void linux_proc_exec(void *, struct proc *, struct image_params *);
void linux_thread_dtor(void *arg __unused, struct thread *);
void linux_thread_detach(struct thread *);
int linux_common_execve(struct thread *, struct image_args *);
/* process emuldata flags */
#define LINUX_XDEPR_REQUEUEOP 0x00000001 /* uses deprecated
futex REQUEUE op*/
#define LINUX_XUNSUP_EPOLL 0x00000002 /* unsupported epoll events */
#define LINUX_XUNSUP_FUTEXPIOP 0x00000004 /* uses unsupported pi futex */
struct linux_pemuldata {
uint32_t flags; /* process emuldata flags */
struct sx pem_sx; /* lock for this struct */
void *epoll; /* epoll data */
uint32_t persona; /* process execution domain */
uint32_t ptrace_flags; /* used by ptrace(2) */
};
#define LINUX_PEM_XLOCK(p) sx_xlock(&(p)->pem_sx)
#define LINUX_PEM_XUNLOCK(p) sx_xunlock(&(p)->pem_sx)
#define LINUX_PEM_SLOCK(p) sx_slock(&(p)->pem_sx)
#define LINUX_PEM_SUNLOCK(p) sx_sunlock(&(p)->pem_sx)
struct linux_pemuldata *pem_find(struct proc *);
#endif /* !_LINUX_EMUL_H_ */
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