Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/compat/ia32/ia32_signal.h
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1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1999 Marcel Moolenaar 5 * Copyright (c) 2003 Peter Wemm 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 _COMPAT_IA32_IA32_SIGNAL_H 35 #define _COMPAT_IA32_IA32_SIGNAL_H 36 37 #include <compat/freebsd32/freebsd32_signal.h> 38 39 #define _MC_IA32_HASSEGS 0x1 40 #define _MC_IA32_HASBASES 0x2 41 #define _MC_IA32_HASFPXSTATE 0x4 42 #define _MC_IA32_FLAG_MASK \ 43 (_MC_IA32_HASSEGS | _MC_IA32_HASBASES | _MC_IA32_HASFPXSTATE) 44 45 struct ia32_mcontext { 46 uint32_t mc_onstack; /* XXX - sigcontext compat. */ 47 uint32_t mc_gs; /* machine state (struct trapframe) */ 48 uint32_t mc_fs; 49 uint32_t mc_es; 50 uint32_t mc_ds; 51 uint32_t mc_edi; 52 uint32_t mc_esi; 53 uint32_t mc_ebp; 54 uint32_t mc_isp; 55 uint32_t mc_ebx; 56 uint32_t mc_edx; 57 uint32_t mc_ecx; 58 uint32_t mc_eax; 59 uint32_t mc_trapno; 60 uint32_t mc_err; 61 uint32_t mc_eip; 62 uint32_t mc_cs; 63 uint32_t mc_eflags; 64 uint32_t mc_esp; 65 uint32_t mc_ss; 66 uint32_t mc_len; /* sizeof(struct ia32_mcontext) */ 67 /* We use the same values for fpformat and ownedfp */ 68 uint32_t mc_fpformat; 69 uint32_t mc_ownedfp; 70 uint32_t mc_flags; 71 /* 72 * See <i386/include/npx.h> for the internals of mc_fpstate[]. 73 */ 74 uint32_t mc_fpstate[128] __aligned(16); 75 uint32_t mc_fsbase; 76 uint32_t mc_gsbase; 77 uint32_t mc_xfpustate; 78 uint32_t mc_xfpustate_len; 79 uint32_t mc_spare2[4]; 80 }; 81 82 struct ia32_ucontext { 83 sigset_t uc_sigmask; 84 struct ia32_mcontext uc_mcontext; 85 uint32_t uc_link; 86 struct sigaltstack32 uc_stack; 87 uint32_t uc_flags; 88 uint32_t __spare__[4]; 89 }; 90 91 struct ia32_freebsd4_mcontext { 92 uint32_t mc_onstack; /* XXX - sigcontext compat. */ 93 uint32_t mc_gs; /* machine state (struct trapframe) */ 94 uint32_t mc_fs; 95 uint32_t mc_es; 96 uint32_t mc_ds; 97 uint32_t mc_edi; 98 uint32_t mc_esi; 99 uint32_t mc_ebp; 100 uint32_t mc_isp; 101 uint32_t mc_ebx; 102 uint32_t mc_edx; 103 uint32_t mc_ecx; 104 uint32_t mc_eax; 105 uint32_t mc_trapno; 106 uint32_t mc_err; 107 uint32_t mc_eip; 108 uint32_t mc_cs; 109 uint32_t mc_eflags; 110 uint32_t mc_esp; 111 uint32_t mc_ss; 112 uint32_t mc_fpregs[28]; 113 uint32_t __spare__[17]; 114 }; 115 116 struct ia32_freebsd4_ucontext { 117 sigset_t uc_sigmask; 118 struct ia32_freebsd4_mcontext uc_mcontext; 119 uint32_t uc_link; 120 struct sigaltstack32 uc_stack; 121 uint32_t __spare__[8]; 122 }; 123 124 struct ia32_osigcontext { 125 uint32_t sc_onstack; 126 uint32_t sc_mask; 127 uint32_t sc_esp; 128 uint32_t sc_ebp; 129 uint32_t sc_isp; 130 uint32_t sc_eip; 131 uint32_t sc_eflags; 132 uint32_t sc_es; 133 uint32_t sc_ds; 134 uint32_t sc_cs; 135 uint32_t sc_ss; 136 uint32_t sc_edi; 137 uint32_t sc_esi; 138 uint32_t sc_ebx; 139 uint32_t sc_edx; 140 uint32_t sc_ecx; 141 uint32_t sc_eax; 142 uint32_t sc_gs; 143 uint32_t sc_fs; 144 uint32_t sc_trapno; 145 uint32_t sc_err; 146 }; 147 148 /* 149 * Signal frames, arguments passed to application signal handlers. 150 */ 151 152 struct ia32_freebsd4_sigframe { 153 uint32_t sf_signum; 154 uint32_t sf_siginfo; /* code or pointer to sf_si */ 155 uint32_t sf_ucontext; /* points to sf_uc */ 156 uint32_t sf_addr; /* undocumented 4th arg */ 157 uint32_t sf_ah; /* action/handler pointer */ 158 struct ia32_freebsd4_ucontext sf_uc; /* = *sf_ucontext */ 159 struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 160 }; 161 162 struct ia32_sigframe { 163 uint32_t sf_signum; 164 uint32_t sf_siginfo; /* code or pointer to sf_si */ 165 uint32_t sf_ucontext; /* points to sf_uc */ 166 uint32_t sf_addr; /* undocumented 4th arg */ 167 uint32_t sf_ah; /* action/handler pointer */ 168 /* Beware, hole due to ucontext being 16 byte aligned! */ 169 struct ia32_ucontext sf_uc; /* = *sf_ucontext */ 170 struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 171 }; 172 173 struct ia32_osiginfo { 174 struct ia32_osigcontext si_sc; 175 int si_signo; 176 int si_code; 177 union sigval32 si_value; 178 }; 179 struct ia32_osigframe { 180 int sf_signum; 181 uint32_t sf_arg2; /* int or siginfo_t */ 182 uint32_t sf_scp; 183 uint32_t sf_addr; 184 uint32_t sf_ah; /* action/handler pointer */ 185 struct ia32_osiginfo sf_siginfo; 186 }; 187 188 struct ksiginfo; 189 struct image_params; 190 void ia32_sendsig(sig_t, struct ksiginfo *, sigset_t *); 191 void ia32_setregs(struct thread *td, struct image_params *imgp, 192 uintptr_t stack); 193 int setup_lcall_gate(void); 194 195 #endif
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