1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2003 Peter Wemm 5 * Copyright (c) 1999 Marcel Moolenaar 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer 13 * in this position and unchanged. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #ifndef _X86_UCONTEXT_H_ 35 #define _X86_UCONTEXT_H_ 36 37 #ifdef __i386__ 38 /* Keep _MC_* values similar to amd64 */ 39 #define _MC_HASSEGS 0x1 40 #define _MC_HASBASES 0x2 41 #define _MC_HASFPXSTATE 0x4 42 #define _MC_FLAG_MASK (_MC_HASSEGS | _MC_HASBASES | _MC_HASFPXSTATE) 43 44 typedef struct __mcontext { 45 /* 46 * The definition of mcontext_t must match the layout of 47 * struct sigcontext after the sc_mask member. This is so 48 * that we can support sigcontext and ucontext_t at the same 49 * time. 50 */ 51 __register_t mc_onstack; /* XXX - sigcontext compat. */ 52 __register_t mc_gs; /* machine state (struct trapframe) */ 53 __register_t mc_fs; 54 __register_t mc_es; 55 __register_t mc_ds; 56 __register_t mc_edi; 57 __register_t mc_esi; 58 __register_t mc_ebp; 59 __register_t mc_isp; 60 __register_t mc_ebx; 61 __register_t mc_edx; 62 __register_t mc_ecx; 63 __register_t mc_eax; 64 __register_t mc_trapno; 65 __register_t mc_err; 66 __register_t mc_eip; 67 __register_t mc_cs; 68 __register_t mc_eflags; 69 __register_t mc_esp; 70 __register_t mc_ss; 71 72 int mc_len; /* sizeof(mcontext_t) */ 73 #define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */ 74 #define _MC_FPFMT_387 0x10001 75 #define _MC_FPFMT_XMM 0x10002 76 int mc_fpformat; 77 #define _MC_FPOWNED_NONE 0x20000 /* FP state not used */ 78 #define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */ 79 #define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */ 80 int mc_ownedfp; 81 __register_t mc_flags; 82 /* 83 * See <machine/npx.h> for the internals of mc_fpstate[]. 84 */ 85 int mc_fpstate[128] __aligned(16); 86 87 __register_t mc_fsbase; 88 __register_t mc_gsbase; 89 90 __register_t mc_xfpustate; 91 __register_t mc_xfpustate_len; 92 93 int mc_spare2[4]; 94 } mcontext_t; 95 #endif /* __i386__ */ 96 97 #ifdef __amd64__ 98 /* 99 * mc_flags bits. Shall be in sync with TF_XXX. 100 */ 101 #define _MC_HASSEGS 0x1 102 #define _MC_HASBASES 0x2 103 #define _MC_HASFPXSTATE 0x4 104 #define _MC_FLAG_MASK (_MC_HASSEGS | _MC_HASBASES | _MC_HASFPXSTATE) 105 106 typedef struct __mcontext { 107 /* 108 * The definition of mcontext_t must match the layout of 109 * struct sigcontext after the sc_mask member. This is so 110 * that we can support sigcontext and ucontext_t at the same 111 * time. 112 */ 113 __register_t mc_onstack; /* XXX - sigcontext compat. */ 114 __register_t mc_rdi; /* machine state (struct trapframe) */ 115 __register_t mc_rsi; 116 __register_t mc_rdx; 117 __register_t mc_rcx; 118 __register_t mc_r8; 119 __register_t mc_r9; 120 __register_t mc_rax; 121 __register_t mc_rbx; 122 __register_t mc_rbp; 123 __register_t mc_r10; 124 __register_t mc_r11; 125 __register_t mc_r12; 126 __register_t mc_r13; 127 __register_t mc_r14; 128 __register_t mc_r15; 129 __uint32_t mc_trapno; 130 __uint16_t mc_fs; 131 __uint16_t mc_gs; 132 __register_t mc_addr; 133 __uint32_t mc_flags; 134 __uint16_t mc_es; 135 __uint16_t mc_ds; 136 __register_t mc_err; 137 __register_t mc_rip; 138 __register_t mc_cs; 139 __register_t mc_rflags; 140 __register_t mc_rsp; 141 __register_t mc_ss; 142 143 long mc_len; /* sizeof(mcontext_t) */ 144 145 #define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */ 146 #define _MC_FPFMT_XMM 0x10002 147 long mc_fpformat; 148 #define _MC_FPOWNED_NONE 0x20000 /* FP state not used */ 149 #define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */ 150 #define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */ 151 long mc_ownedfp; 152 /* 153 * See <machine/fpu.h> for the internals of mc_fpstate[]. 154 */ 155 long mc_fpstate[64] __aligned(16); 156 157 __register_t mc_fsbase; 158 __register_t mc_gsbase; 159 160 __register_t mc_xfpustate; 161 __register_t mc_xfpustate_len; 162 163 long mc_spare[4]; 164 } mcontext_t; 165 #endif /* __amd64__ */ 166 167 #endif /* !_X86_UCONTEXT_H_ */ 168