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 1.23 1997/06/22 16:03:51 peter 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/tss.h> 47 #include <machine/npx.h> 48 #include <machine/pcb_ext.h> 49 50 struct pcb { 51 int pcb_cr3; 52 int pcb_edi; 53 int pcb_esi; 54 int pcb_ebp; 55 int pcb_esp; 56 int pcb_ebx; 57 int pcb_eip; 58 caddr_t pcb_ldt; /* per process (user) LDT */ 59 int pcb_ldt_len; /* number of LDT entries */ 60 struct save87 pcb_savefpu; /* floating point state for 287/387 */ 61 u_char pcb_flags; 62 #define FP_SOFTFP 0x01 /* process using software fltng pnt emulator */ 63 caddr_t pcb_onfault; /* copyin/out fault recovery */ 64 u_long pcb_mpnest; 65 int pcb_fs; 66 int pcb_gs; 67 struct pcb_ext *pcb_ext; /* optional pcb extension */ 68 u_long __pcb_spare[1]; /* adjust to avoid core dump size changes */ 69 }; 70 71 /* 72 * The pcb is augmented with machine-dependent additional data for 73 * core dumps. For the i386: ??? 74 */ 75 struct md_coredump { 76 }; 77 78 #ifdef KERNEL 79 80 extern struct pcb *curpcb; /* our current running pcb */ 81 82 void savectx __P((struct pcb*)); 83 #endif 84 85 #endif /* _I386_PCB_H_ */ 86