1 /*- 2 * Copyright (c) 2006 Roman Divacky 3 * Copyright (c) 2013 Dmitry Chagin 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer 11 * in this position and unchanged. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #ifndef _LINUX_EMUL_H_ 33 #define _LINUX_EMUL_H_ 34 35 /* 36 * modeled after similar structure in NetBSD 37 * this will be extended as we need more functionality 38 */ 39 struct linux_emuldata { 40 int *child_set_tid; /* in clone(): Child's TID to set on clone */ 41 int *child_clear_tid;/* in clone(): Child's TID to clear on exit */ 42 43 int pdeath_signal; /* parent death signal */ 44 int flags; /* thread emuldata flags */ 45 int em_tid; /* thread id */ 46 47 struct linux_robust_list_head *robust_futexes; 48 }; 49 50 struct linux_emuldata *em_find(struct thread *); 51 52 void linux_proc_init(struct thread *, struct thread *, int); 53 void linux_proc_exit(void *, struct proc *); 54 void linux_schedtail(struct thread *); 55 void linux_proc_exec(void *, struct proc *, struct image_params *); 56 void linux_thread_dtor(void *arg __unused, struct thread *); 57 void linux_thread_detach(struct thread *); 58 int linux_common_execve(struct thread *, struct image_args *); 59 60 /* process emuldata flags */ 61 #define LINUX_XDEPR_REQUEUEOP 0x00000001 /* uses deprecated 62 futex REQUEUE op*/ 63 #define LINUX_XUNSUP_EPOLL 0x00000002 /* unsupported epoll events */ 64 #define LINUX_XUNSUP_FUTEXPIOP 0x00000004 /* uses unsupported pi futex */ 65 66 struct linux_pemuldata { 67 uint32_t flags; /* process emuldata flags */ 68 struct sx pem_sx; /* lock for this struct */ 69 void *epoll; /* epoll data */ 70 }; 71 72 #define LINUX_PEM_XLOCK(p) sx_xlock(&(p)->pem_sx) 73 #define LINUX_PEM_XUNLOCK(p) sx_xunlock(&(p)->pem_sx) 74 #define LINUX_PEM_SLOCK(p) sx_slock(&(p)->pem_sx) 75 #define LINUX_PEM_SUNLOCK(p) sx_sunlock(&(p)->pem_sx) 76 77 struct linux_pemuldata *pem_find(struct proc *); 78 79 #endif /* !_LINUX_EMUL_H_ */ 80