1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)pcb.h 5.10 (Berkeley) 5/12/91 37 * $FreeBSD$ 38 */ 39 40 #ifndef _I386_PCB_H_ 41 #define _I386_PCB_H_ 42 43 /* 44 * Intel 386 process control block 45 */ 46 #include <machine/npx.h> 47 48 struct pcb { 49 int pcb_cr3; 50 int pcb_edi; 51 int pcb_esi; 52 int pcb_ebp; 53 int pcb_esp; 54 int pcb_ebx; 55 int pcb_eip; 56 57 int pcb_dr0; 58 int pcb_dr1; 59 int pcb_dr2; 60 int pcb_dr3; 61 int pcb_dr6; 62 int pcb_dr7; 63 64 union savefpu pcb_save; 65 u_int pcb_flags; 66 #define FP_SOFTFP 0x01 /* process using software fltng pnt emulator */ 67 #define PCB_DBREGS 0x02 /* process using debug registers */ 68 #define PCB_NPXTRAP 0x04 /* npx trap pending */ 69 #define PCB_NPXINITDONE 0x08 /* fpu state is initialized */ 70 #define PCB_VM86CALL 0x10 /* in vm86 call */ 71 72 caddr_t pcb_onfault; /* copyin/out fault recovery */ 73 int pcb_gs; 74 struct pcb_ext *pcb_ext; /* optional pcb extension */ 75 int pcb_psl; /* process status long */ 76 void (*pcb_switchout)(void); /* Special switchout function. */ 77 u_long __pcb_spare[1]; /* adjust to avoid core dump size changes */ 78 }; 79 80 #ifdef _KERNEL 81 void savectx(struct pcb *); 82 #endif 83 84 #endif /* _I386_PCB_H_ */ 85