1 /*- 2 * Copyright (c) 2003 Peter Wemm 3 * Copyright (c) 1999 Marcel Moolenaar 4 * Copyright (c) 2008 The DragonFly Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer 12 * in this position and unchanged. 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. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * $FreeBSD: src/sys/amd64/include/ucontext.h,v 1.18 2003/11/08 04:39:22 peter Exp $ 31 */ 32 33 #ifndef _CPU_UCONTEXT_H_ 34 #define _CPU_UCONTEXT_H_ 35 36 #include <sys/cdefs.h> 37 38 struct __mcontext { 39 /* 40 * The first 20 fields must match the definition of 41 * sigcontext. So that we can support sigcontext 42 * and ucontext_t at the same time. 43 * 44 * NOTE: bcopy in sendsig copies trapframe to this 45 * structure as of mc_rdi. 46 */ 47 __register_t mc_onstack; /* XXX - sigcontext compat. */ 48 __register_t mc_rdi; 49 __register_t mc_rsi; 50 __register_t mc_rdx; 51 __register_t mc_rcx; 52 __register_t mc_r8; 53 __register_t mc_r9; 54 __register_t mc_rax; 55 __register_t mc_rbx; 56 __register_t mc_rbp; 57 __register_t mc_r10; 58 __register_t mc_r11; 59 __register_t mc_r12; 60 __register_t mc_r13; 61 __register_t mc_r14; 62 __register_t mc_r15; 63 __register_t mc_xflags; 64 __register_t mc_trapno; 65 __register_t mc_addr; 66 __register_t mc_flags; 67 __register_t mc_err; 68 __register_t mc_rip; 69 __register_t mc_cs; 70 __register_t mc_rflags; 71 __register_t mc_rsp; /* machine state */ 72 __register_t mc_ss; 73 74 unsigned int mc_len; /* sizeof(mcontext_t) */ 75 unsigned int mc_fpformat; 76 unsigned int mc_ownedfp; 77 unsigned int mc_reserved; 78 unsigned int mc_unused[8]; 79 80 /* 81 * NOTE! 64-byte aligned as of here. Also must match savefpu 82 * structure. 83 */ 84 int mc_fpregs[256]; 85 } __aligned(64); 86 87 typedef struct __mcontext mcontext_t; 88 89 #define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */ 90 #define _MC_FPFMT_387 0x10001 91 #define _MC_FPFMT_XMM 0x10002 92 #define _MC_FPFMT_YMM 0x10003 93 94 #define _MC_FPOWNED_NONE 0x20000 /* FP state not used */ 95 #define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */ 96 #define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */ 97 98 #endif /* !_CPU_UCONTEXT_H_ */ 99