1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _SYS_PCB_H 28*0Sstevel@tonic-gate #define _SYS_PCB_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include <sys/regset.h> 33*0Sstevel@tonic-gate #include <sys/segments.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #ifdef __cplusplus 36*0Sstevel@tonic-gate extern "C" { 37*0Sstevel@tonic-gate #endif 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #ifndef _ASM 40*0Sstevel@tonic-gate typedef struct fpu_ctx { 41*0Sstevel@tonic-gate kfpu_t fpu_regs; /* kernel save area for FPU */ 42*0Sstevel@tonic-gate uint_t fpu_flags; /* FPU state flags */ 43*0Sstevel@tonic-gate } fpu_ctx_t; 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate typedef struct pcb { 46*0Sstevel@tonic-gate fpu_ctx_t pcb_fpu; /* fpu state */ 47*0Sstevel@tonic-gate uint_t pcb_flags; /* state flags; cleared on fork */ 48*0Sstevel@tonic-gate greg_t pcb_drstat; /* status debug register (%dr6) */ 49*0Sstevel@tonic-gate unsigned char pcb_instr; /* /proc: instruction at stop */ 50*0Sstevel@tonic-gate #if defined(__amd64) 51*0Sstevel@tonic-gate uintptr_t pcb_fsbase; 52*0Sstevel@tonic-gate uintptr_t pcb_gsbase; 53*0Sstevel@tonic-gate selector_t pcb_ds; 54*0Sstevel@tonic-gate selector_t pcb_es; 55*0Sstevel@tonic-gate selector_t pcb_fs; 56*0Sstevel@tonic-gate selector_t pcb_gs; 57*0Sstevel@tonic-gate #endif /* __amd64 */ 58*0Sstevel@tonic-gate user_desc_t pcb_fsdesc; /* private per-lwp %fs descriptors */ 59*0Sstevel@tonic-gate user_desc_t pcb_gsdesc; /* private per-lwp %gs descriptors */ 60*0Sstevel@tonic-gate } pcb_t; 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate #endif /* ! _ASM */ 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate /* pcb_flags */ 65*0Sstevel@tonic-gate #define DEBUG_PENDING 0x02 /* single-step of lcall for a sys call */ 66*0Sstevel@tonic-gate #define INSTR_VALID 0x08 /* value in pcb_instr is valid (/proc) */ 67*0Sstevel@tonic-gate #define NORMAL_STEP 0x10 /* normal debugger-requested single-step */ 68*0Sstevel@tonic-gate #define WATCH_STEP 0x20 /* single-stepping in watchpoint emulation */ 69*0Sstevel@tonic-gate #define CPC_OVERFLOW 0x40 /* performance counters overflowed */ 70*0Sstevel@tonic-gate #define RUPDATE_PENDING 0x80 /* new register values in the pcb -> regs */ 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate /* fpu_flags */ 73*0Sstevel@tonic-gate #define FPU_EN 0x1 /* flag signifying fpu in use */ 74*0Sstevel@tonic-gate #define FPU_VALID 0x2 /* fpu_regs has valid fpu state */ 75*0Sstevel@tonic-gate #define FPU_MODIFIED 0x4 /* fpu_regs is modified (/proc) */ 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate #define FPU_INVALID 0x0 /* fpu context is not in use */ 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate /* fpu_flags */ 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate #ifdef __cplusplus 82*0Sstevel@tonic-gate } 83*0Sstevel@tonic-gate #endif 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate #endif /* _SYS_PCB_H */ 86