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