1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * Copyright (c) 2003 Peter Wemm. 4 * Copyright (c) 2008 The DragonFly Project. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 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. 21 * 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 32 * SUCH DAMAGE. 33 * 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 $ 36 */ 37 38 #ifndef _MACHINE_PCB_H_ 39 #define _MACHINE_PCB_H_ 40 41 /* 42 * x86_64 process control block 43 */ 44 #include <machine/npx.h> 45 46 struct pcb { 47 register_t padxx[8]; 48 register_t pcb_unused01; 49 register_t pcb_r15; 50 register_t pcb_r14; 51 register_t pcb_r13; 52 register_t pcb_r12; 53 register_t pcb_rbp; 54 register_t pcb_rsp; 55 register_t pcb_rbx; 56 register_t pcb_rip; 57 register_t pcb_rsi; 58 register_t pcb_rdi; 59 register_t pcb_rflags; 60 register_t pcb_fsbase; 61 register_t pcb_gsbase; 62 u_long pcb_flags; 63 u_int32_t pcb_ds; 64 u_int32_t pcb_es; 65 u_int32_t pcb_fs; 66 u_int32_t pcb_gs; 67 u_int64_t pcb_dr0; 68 u_int64_t pcb_dr1; 69 u_int64_t pcb_dr2; 70 u_int64_t pcb_dr3; 71 u_int64_t pcb_dr6; 72 u_int64_t pcb_dr7; 73 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 */ 81 int pcb_unused; 82 struct pcb_ext *pcb_ext; /* optional pcb extension */ 83 }; 84 85 #ifdef _KERNEL 86 void savectx(struct pcb *); 87 #endif 88 89 #endif /* _MACHINE_PCB_H_ */ 90