2 * Copyright (c) 1990 The Regents of the University of California.
3 * Copyright (c) 2003 Peter Wemm.
4 * Copyright (c) 2008 The DragonFly Project.
7 * This code is derived from software contributed to Berkeley by
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * from: @(#)pcb.h 5.10 (Berkeley) 5/12/91
35 * $FreeBSD: src/sys/i386/include/pcb.h,v 1.32.2.1 2001/08/15 01:23:52 peter Exp $
38 #ifndef _MACHINE_PCB_H_
39 #define _MACHINE_PCB_H_
42 * x86_64 process control block
44 #include <machine/npx.h>
48 register_t pcb_unused01
;
59 register_t pcb_rflags
;
60 register_t pcb_fsbase
;
61 register_t pcb_gsbase
;
74 struct pcb_ldt
*pcb_ldt
;
75 union savefpu pcb_save
;
76 #define PCB_DBREGS 0x02 /* process using debug registers */
77 #define PCB_FPUINITDONE 0x08 /* fpu state is initialized */
78 #define FP_SOFTFP 0x01 /* process using software fltng pnt emulator */
79 #define FP_VIRTFP 0x04 /* virtual kernel wants exception */
80 caddr_t pcb_onfault
; /* copyin/out fault recovery */
82 struct pcb_ext
*pcb_ext
; /* optional pcb extension */
86 void savectx(struct pcb
*);
89 #endif /* _MACHINE_PCB_H_ */