1 /*- 2 * Copyright (c) 1999 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer 10 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _MACHINE_UCONTEXT_H_ 32 #define _MACHINE_UCONTEXT_H_ 33 34 typedef struct __mcontext { 35 /* 36 * The first 20 fields must match the definition of 37 * sigcontext. So that we can support sigcontext 38 * and ucontext_t at the same time. 39 */ 40 int mc_onstack; /* XXX - sigcontext compat. */ 41 int mc_gs; 42 int mc_fs; 43 int mc_es; 44 int mc_ds; 45 int mc_edi; 46 int mc_esi; 47 int mc_ebp; 48 int mc_isp; 49 int mc_ebx; 50 int mc_edx; 51 int mc_ecx; 52 int mc_eax; 53 int mc_trapno; 54 int mc_err; 55 int mc_eip; 56 int mc_cs; 57 int mc_eflags; 58 int mc_esp; /* machine state */ 59 int mc_ss; 60 61 int mc_fpregs[28]; /* env87 + fpacc87 + u_long */ 62 #define __UC_MC_VALID 0x0001 /* mcontext register state is valid */ 63 #define __UC_FP_VALID 0x0002 /* FP registers have been saved */ 64 int mc_flags; 65 int __spare__[16]; 66 } mcontext_t; 67 68 #endif /* !_MACHINE_UCONTEXT_H_ */ 69