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 u_int32_t mc_onstack; /* XXX - sigcontext compat. */ 47 u_int32_t mc_gs; /* machine state (struct trapframe) */ 48 u_int32_t mc_fs; 49 u_int32_t mc_es; 50 u_int32_t mc_ds; 51 u_int32_t mc_edi; 52 u_int32_t mc_esi; 53 u_int32_t mc_ebp; 54 u_int32_t mc_isp; 55 u_int32_t mc_ebx; 56 u_int32_t mc_edx; 57 u_int32_t mc_ecx; 58 u_int32_t mc_eax; 59 u_int32_t mc_trapno; 60 u_int32_t mc_err; 61 u_int32_t mc_eip; 62 u_int32_t mc_cs; 63 u_int32_t mc_eflags; 64 u_int32_t mc_esp; 65 u_int32_t mc_ss; 66 u_int32_t mc_len; /* sizeof(struct ia32_mcontext) */ 67 /* We use the same values for fpformat and ownedfp */ 68 u_int32_t mc_fpformat; 69 u_int32_t mc_ownedfp; 70 u_int32_t mc_flags; 71 /* 72 * See <i386/include/npx.h> for the internals of mc_fpstate[]. 73 */ 74 u_int32_t mc_fpstate[128] __aligned(16); 75 u_int32_t mc_fsbase; 76 u_int32_t mc_gsbase; 77 u_int32_t mc_xfpustate; 78 u_int32_t mc_xfpustate_len; 79 u_int32_t mc_spare2[4]; 80 }; 81 82 struct ia32_ucontext { 83 sigset_t uc_sigmask; 84 struct ia32_mcontext uc_mcontext; 85 u_int32_t uc_link; 86 struct sigaltstack32 uc_stack; 87 u_int32_t uc_flags; 88 u_int32_t __spare__[4]; 89 }; 90 91 #if defined(COMPAT_FREEBSD4) 92 struct ia32_mcontext4 { 93 u_int32_t mc_onstack; /* XXX - sigcontext compat. */ 94 u_int32_t mc_gs; /* machine state (struct trapframe) */ 95 u_int32_t mc_fs; 96 u_int32_t mc_es; 97 u_int32_t mc_ds; 98 u_int32_t mc_edi; 99 u_int32_t mc_esi; 100 u_int32_t mc_ebp; 101 u_int32_t mc_isp; 102 u_int32_t mc_ebx; 103 u_int32_t mc_edx; 104 u_int32_t mc_ecx; 105 u_int32_t mc_eax; 106 u_int32_t mc_trapno; 107 u_int32_t mc_err; 108 u_int32_t mc_eip; 109 u_int32_t mc_cs; 110 u_int32_t mc_eflags; 111 u_int32_t mc_esp; 112 u_int32_t mc_ss; 113 u_int32_t mc_fpregs[28]; 114 u_int32_t __spare__[17]; 115 }; 116 117 struct ia32_ucontext4 { 118 sigset_t uc_sigmask; 119 struct ia32_mcontext4 uc_mcontext; 120 u_int32_t uc_link; 121 struct sigaltstack32 uc_stack; 122 u_int32_t __spare__[8]; 123 }; 124 #endif 125 126 #ifdef COMPAT_43 127 struct ia32_sigcontext3 { 128 u_int32_t sc_onstack; 129 u_int32_t sc_mask; 130 u_int32_t sc_esp; 131 u_int32_t sc_ebp; 132 u_int32_t sc_isp; 133 u_int32_t sc_eip; 134 u_int32_t sc_eflags; 135 u_int32_t sc_es; 136 u_int32_t sc_ds; 137 u_int32_t sc_cs; 138 u_int32_t sc_ss; 139 u_int32_t sc_edi; 140 u_int32_t sc_esi; 141 u_int32_t sc_ebx; 142 u_int32_t sc_edx; 143 u_int32_t sc_ecx; 144 u_int32_t sc_eax; 145 u_int32_t sc_gs; 146 u_int32_t sc_fs; 147 u_int32_t sc_trapno; 148 u_int32_t sc_err; 149 }; 150 #endif 151 152 /* 153 * Signal frames, arguments passed to application signal handlers. 154 */ 155 156 #ifdef COMPAT_FREEBSD4 157 struct ia32_sigframe4 { 158 u_int32_t sf_signum; 159 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 160 u_int32_t sf_ucontext; /* points to sf_uc */ 161 u_int32_t sf_addr; /* undocumented 4th arg */ 162 u_int32_t sf_ah; /* action/handler pointer */ 163 struct ia32_ucontext4 sf_uc; /* = *sf_ucontext */ 164 struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 165 }; 166 #endif 167 168 struct ia32_sigframe { 169 u_int32_t sf_signum; 170 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 171 u_int32_t sf_ucontext; /* points to sf_uc */ 172 u_int32_t sf_addr; /* undocumented 4th arg */ 173 u_int32_t sf_ah; /* action/handler pointer */ 174 /* Beware, hole due to ucontext being 16 byte aligned! */ 175 struct ia32_ucontext sf_uc; /* = *sf_ucontext */ 176 struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 177 }; 178 179 #ifdef COMPAT_43 180 struct ia32_siginfo3 { 181 struct ia32_sigcontext3 si_sc; 182 int si_signo; 183 int si_code; 184 union sigval32 si_value; 185 }; 186 struct ia32_sigframe3 { 187 int sf_signum; 188 u_int32_t sf_arg2; /* int or siginfo_t */ 189 u_int32_t sf_scp; 190 u_int32_t sf_addr; 191 u_int32_t sf_ah; /* action/handler pointer */ 192 struct ia32_siginfo3 sf_siginfo; 193 }; 194 #endif 195 196 struct ksiginfo; 197 struct image_params; 198 extern char ia32_sigcode[]; 199 extern char freebsd4_ia32_sigcode[]; 200 extern char ia32_osigcode[]; 201 extern char lcall_tramp; 202 extern int sz_ia32_sigcode; 203 extern int sz_freebsd4_ia32_sigcode; 204 extern int sz_ia32_osigcode; 205 extern int sz_lcall_tramp; 206 void ia32_sendsig(sig_t, struct ksiginfo *, sigset_t *); 207 void ia32_setregs(struct thread *td, struct image_params *imgp, 208 uintptr_t stack); 209 int setup_lcall_gate(void); 210 211 #endif
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