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 * $Id: pcb.h,v 1.27 1999/04/28 01:04:05 luoqi Exp $ 38 */ 39 40 #ifndef _I386_PCB_H_ 41 #define _I386_PCB_H_ 42 43 /* 44 * Intel 386 process control block 45 */ 46 #include <machine/globals.h> 47 #include <machine/npx.h> 48 49 struct pcb { 50 int pcb_cr3; 51 int pcb_edi; 52 int pcb_esi; 53 int pcb_ebp; 54 int pcb_esp; 55 int pcb_ebx; 56 int pcb_eip; 57 caddr_t pcb_ldt; /* per process (user) LDT */ 58 int pcb_ldt_len; /* number of LDT entries */ 59 struct save87 pcb_savefpu; /* floating point state for 287/387 */ 60 u_char pcb_flags; 61 #define FP_SOFTFP 0x01 /* process using software fltng pnt emulator */ 62 caddr_t pcb_onfault; /* copyin/out fault recovery */ 63 #ifdef SMP 64 u_long pcb_mpnest; 65 #else 66 u_long pcb_mpnest_dontuse; 67 #endif 68 int pcb_gs; 69 struct pcb_ext *pcb_ext; /* optional pcb extension */ 70 u_long __pcb_spare[2]; /* adjust to avoid core dump size changes */ 71 }; 72 73 /* 74 * The pcb is augmented with machine-dependent additional data for 75 * core dumps. For the i386: ??? 76 */ 77 struct md_coredump { 78 }; 79 80 #ifdef KERNEL 81 82 #ifndef curpcb 83 extern struct pcb *curpcb; /* our current running pcb */ 84 #endif 85 86 void savectx __P((struct pcb *)); 87 #endif 88 89 #endif /* _I386_PCB_H_ */ 90