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 register_t mc_onstack; /* XXX - sigcontext compat. */ 41 register_t mc_rdi; /* machine state (struct trapframe) */ 42 register_t mc_rsi; 43 register_t mc_rdx; 44 register_t mc_rcx; 45 register_t mc_r8; 46 register_t mc_r9; 47 register_t mc_rax; 48 register_t mc_rbx; 49 register_t mc_rbp; 50 register_t mc_r10; 51 register_t mc_r11; 52 register_t mc_r12; 53 register_t mc_r13; 54 register_t mc_r14; 55 register_t mc_r15; 56 register_t mc_trapno; 57 register_t mc_addr; 58 register_t mc_err; 59 register_t mc_rip; 60 register_t mc_cs; 61 register_t mc_rflags; 62 register_t mc_rsp; 63 register_t mc_ss; 64 65 long mc_len; /* sizeof(mcontext_t) */ 66 #define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */ 67 #define _MC_FPFMT_XMM 0x10002 68 long mc_fpformat; 69 #define _MC_FPOWNED_NONE 0x20000 /* FP state not used */ 70 #define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */ 71 #define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */ 72 long mc_ownedfp; 73 long mc_spare1[1]; /* align mc_fpstate to 16 bytes */ 74 /* 75 * See <machine/npx.h> for the internals of mc_fpstate[]. 76 */ 77 long mc_fpstate[64] __aligned(16); 78 long mc_spare2[8]; 79 } mcontext_t; 80 81 #endif /* !_MACHINE_UCONTEXT_H_ */ 82