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 * Copyright (c) 1999 Marcel Moolenaar 3 * Copyright (c) 2003 Peter Wemm 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: releng/10.2/sys/compat/ia32/ia32_signal.h 230426 2012-01-21 17:45:27Z kib $ 30 */ 31 32 #ifndef _COMPAT_IA32_IA32_SIGNAL_H 33 #define _COMPAT_IA32_IA32_SIGNAL_H 34 35 #define _MC_IA32_HASSEGS 0x1 36 #define _MC_IA32_HASBASES 0x2 37 #define _MC_IA32_HASFPXSTATE 0x4 38 #define _MC_IA32_FLAG_MASK \ 39 (_MC_IA32_HASSEGS | _MC_IA32_HASBASES | _MC_IA32_HASFPXSTATE) 40 41 struct ia32_mcontext { 42 u_int32_t mc_onstack; /* XXX - sigcontext compat. */ 43 u_int32_t mc_gs; /* machine state (struct trapframe) */ 44 u_int32_t mc_fs; 45 u_int32_t mc_es; 46 u_int32_t mc_ds; 47 u_int32_t mc_edi; 48 u_int32_t mc_esi; 49 u_int32_t mc_ebp; 50 u_int32_t mc_isp; 51 u_int32_t mc_ebx; 52 u_int32_t mc_edx; 53 u_int32_t mc_ecx; 54 u_int32_t mc_eax; 55 u_int32_t mc_trapno; 56 u_int32_t mc_err; 57 u_int32_t mc_eip; 58 u_int32_t mc_cs; 59 u_int32_t mc_eflags; 60 u_int32_t mc_esp; 61 u_int32_t mc_ss; 62 u_int32_t mc_len; /* sizeof(struct ia32_mcontext) */ 63 /* We use the same values for fpformat and ownedfp */ 64 u_int32_t mc_fpformat; 65 u_int32_t mc_ownedfp; 66 u_int32_t mc_flags; 67 /* 68 * See <i386/include/npx.h> for the internals of mc_fpstate[]. 69 */ 70 u_int32_t mc_fpstate[128] __aligned(16); 71 u_int32_t mc_fsbase; 72 u_int32_t mc_gsbase; 73 u_int32_t mc_xfpustate; 74 u_int32_t mc_xfpustate_len; 75 u_int32_t mc_spare2[4]; 76 }; 77 78 struct ia32_ucontext { 79 sigset_t uc_sigmask; 80 struct ia32_mcontext uc_mcontext; 81 u_int32_t uc_link; 82 struct sigaltstack32 uc_stack; 83 u_int32_t uc_flags; 84 u_int32_t __spare__[4]; 85 }; 86 87 88 #if defined(COMPAT_FREEBSD4) 89 struct ia32_mcontext4 { 90 u_int32_t mc_onstack; /* XXX - sigcontext compat. */ 91 u_int32_t mc_gs; /* machine state (struct trapframe) */ 92 u_int32_t mc_fs; 93 u_int32_t mc_es; 94 u_int32_t mc_ds; 95 u_int32_t mc_edi; 96 u_int32_t mc_esi; 97 u_int32_t mc_ebp; 98 u_int32_t mc_isp; 99 u_int32_t mc_ebx; 100 u_int32_t mc_edx; 101 u_int32_t mc_ecx; 102 u_int32_t mc_eax; 103 u_int32_t mc_trapno; 104 u_int32_t mc_err; 105 u_int32_t mc_eip; 106 u_int32_t mc_cs; 107 u_int32_t mc_eflags; 108 u_int32_t mc_esp; 109 u_int32_t mc_ss; 110 u_int32_t mc_fpregs[28]; 111 u_int32_t __spare__[17]; 112 }; 113 114 struct ia32_ucontext4 { 115 sigset_t uc_sigmask; 116 struct ia32_mcontext4 uc_mcontext; 117 u_int32_t uc_link; 118 struct sigaltstack32 uc_stack; 119 u_int32_t __spare__[8]; 120 }; 121 #endif 122 123 #ifdef COMPAT_43 124 struct ia32_sigcontext3 { 125 u_int32_t sc_onstack; 126 u_int32_t sc_mask; 127 u_int32_t sc_esp; 128 u_int32_t sc_ebp; 129 u_int32_t sc_isp; 130 u_int32_t sc_eip; 131 u_int32_t sc_eflags; 132 u_int32_t sc_es; 133 u_int32_t sc_ds; 134 u_int32_t sc_cs; 135 u_int32_t sc_ss; 136 u_int32_t sc_edi; 137 u_int32_t sc_esi; 138 u_int32_t sc_ebx; 139 u_int32_t sc_edx; 140 u_int32_t sc_ecx; 141 u_int32_t sc_eax; 142 u_int32_t sc_gs; 143 u_int32_t sc_fs; 144 u_int32_t sc_trapno; 145 u_int32_t sc_err; 146 }; 147 #endif 148 149 /* 150 * Signal frames, arguments passed to application signal handlers. 151 */ 152 153 #ifdef COMPAT_FREEBSD4 154 struct ia32_sigframe4 { 155 u_int32_t sf_signum; 156 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 157 u_int32_t sf_ucontext; /* points to sf_uc */ 158 u_int32_t sf_addr; /* undocumented 4th arg */ 159 u_int32_t sf_ah; /* action/handler pointer */ 160 struct ia32_ucontext4 sf_uc; /* = *sf_ucontext */ 161 struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 162 }; 163 #endif 164 165 struct ia32_sigframe { 166 u_int32_t sf_signum; 167 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 168 u_int32_t sf_ucontext; /* points to sf_uc */ 169 u_int32_t sf_addr; /* undocumented 4th arg */ 170 u_int32_t sf_ah; /* action/handler pointer */ 171 /* Beware, hole due to ucontext being 16 byte aligned! */ 172 struct ia32_ucontext sf_uc; /* = *sf_ucontext */ 173 struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 174 }; 175 176 #ifdef COMPAT_43 177 struct ia32_siginfo3 { 178 struct ia32_sigcontext3 si_sc; 179 int si_signo; 180 int si_code; 181 union sigval32 si_value; 182 }; 183 struct ia32_sigframe3 { 184 int sf_signum; 185 u_int32_t sf_arg2; /* int or siginfo_t */ 186 u_int32_t sf_scp; 187 u_int32_t sf_addr; 188 u_int32_t sf_ah; /* action/handler pointer */ 189 struct ia32_siginfo3 sf_siginfo; 190 }; 191 #endif 192 193 struct ksiginfo; 194 struct image_params; 195 extern char ia32_sigcode[]; 196 extern char freebsd4_ia32_sigcode[]; 197 extern char ia32_osigcode[]; 198 extern char lcall_tramp; 199 extern int sz_ia32_sigcode; 200 extern int sz_freebsd4_ia32_sigcode; 201 extern int sz_ia32_osigcode; 202 extern int sz_lcall_tramp; 203 void ia32_sendsig(sig_t, struct ksiginfo *, sigset_t *); 204 void ia32_setregs(struct thread *td, struct image_params *imgp, 205 u_long stack); 206 int setup_lcall_gate(void); 207 208 #endif
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