1 /* $NetBSD: mcontext.h,v 1.4 2003/10/08 22:43:01 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Klaus Klein and by Jason R. Thorpe of Wasabi Systems, Inc. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #ifndef _MACHINE_MCONTEXT_H_ 35 #define _MACHINE_MCONTEXT_H_ 36 /* 37 * General register state 38 */ 39 #define _NGREG 17 40 typedef unsigned int __greg_t; 41 typedef __greg_t __gregset_t[_NGREG]; 42 43 #define _REG_R0 0 44 #define _REG_R1 1 45 #define _REG_R2 2 46 #define _REG_R3 3 47 #define _REG_R4 4 48 #define _REG_R5 5 49 #define _REG_R6 6 50 #define _REG_R7 7 51 #define _REG_R8 8 52 #define _REG_R9 9 53 #define _REG_R10 10 54 #define _REG_R11 11 55 #define _REG_R12 12 56 #define _REG_R13 13 57 #define _REG_R14 14 58 #define _REG_R15 15 59 #define _REG_CPSR 16 60 /* Convenience synonyms */ 61 #define _REG_FP _REG_R11 62 #define _REG_SP _REG_R13 63 #define _REG_LR _REG_R14 64 #define _REG_PC _REG_R15 65 66 /* 67 * Floating point register state 68 */ 69 /* Note: the storage layout of this structure must be identical to ARMFPE! */ 70 typedef struct { 71 unsigned int __fp_fpsr; 72 struct { 73 unsigned int __fp_exponent; 74 unsigned int __fp_mantissa_hi; 75 unsigned int __fp_mantissa_lo; 76 } __fp_fr[8]; 77 } __fpregset_t; 78 79 typedef struct { 80 unsigned int __vfp_fpscr; 81 unsigned int __vfp_fstmx[33]; 82 unsigned int __vfp_fpsid; 83 } __vfpregset_t; 84 85 typedef struct { 86 __gregset_t __gregs; 87 union { 88 __fpregset_t __fpregs; 89 __vfpregset_t __vfpregs; 90 } __fpu; 91 } mcontext_t; 92 93 /* Machine-dependent uc_flags */ 94 #define _UC_ARM_VFP 0x00010000 /* FPU field is VFP */ 95 96 /* used by signal delivery to indicate status of signal stack */ 97 #define _UC_SETSTACK 0x00020000 98 #define _UC_CLRSTACK 0x00040000 99 100 #endif /* !_MACHINE_MCONTEXT_H_ */ 101