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
Version:
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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 * $FreeBSD$ 30 */ 31 32 struct ia32_mcontext { 33 u_int32_t mc_onstack; /* XXX - sigcontext compat. */ 34 u_int32_t mc_gs; /* machine state (struct trapframe) */ 35 u_int32_t mc_fs; 36 u_int32_t mc_es; 37 u_int32_t mc_ds; 38 u_int32_t mc_edi; 39 u_int32_t mc_esi; 40 u_int32_t mc_ebp; 41 u_int32_t mc_isp; 42 u_int32_t mc_ebx; 43 u_int32_t mc_edx; 44 u_int32_t mc_ecx; 45 u_int32_t mc_eax; 46 u_int32_t mc_trapno; 47 u_int32_t mc_err; 48 u_int32_t mc_eip; 49 u_int32_t mc_cs; 50 u_int32_t mc_eflags; 51 u_int32_t mc_esp; 52 u_int32_t mc_ss; 53 u_int32_t mc_len; /* sizeof(struct ia32_mcontext) */ 54 /* We use the same values for fpformat and ownedfp */ 55 u_int32_t mc_fpformat; 56 u_int32_t mc_ownedfp; 57 u_int32_t mc_spare1[1]; /* align next field to 16 bytes */ 58 /* 59 * See <i386/include/npx.h> for the internals of mc_fpstate[]. 60 */ 61 u_int32_t mc_fpstate[128] __aligned(16); 62 u_int32_t mc_spare2[8]; 63 }; 64 65 struct ia32_ucontext { 66 sigset_t uc_sigmask; 67 struct ia32_mcontext uc_mcontext; 68 u_int32_t uc_link; 69 struct sigaltstack32 uc_stack; 70 u_int32_t uc_flags; 71 u_int32_t __spare__[4]; 72 }; 73 74 75 #if defined(COMPAT_FREEBSD4) 76 struct ia32_mcontext4 { 77 u_int32_t mc_onstack; /* XXX - sigcontext compat. */ 78 u_int32_t mc_gs; /* machine state (struct trapframe) */ 79 u_int32_t mc_fs; 80 u_int32_t mc_es; 81 u_int32_t mc_ds; 82 u_int32_t mc_edi; 83 u_int32_t mc_esi; 84 u_int32_t mc_ebp; 85 u_int32_t mc_isp; 86 u_int32_t mc_ebx; 87 u_int32_t mc_edx; 88 u_int32_t mc_ecx; 89 u_int32_t mc_eax; 90 u_int32_t mc_trapno; 91 u_int32_t mc_err; 92 u_int32_t mc_eip; 93 u_int32_t mc_cs; 94 u_int32_t mc_eflags; 95 u_int32_t mc_esp; 96 u_int32_t mc_ss; 97 u_int32_t mc_fpregs[28]; 98 u_int32_t __spare__[17]; 99 }; 100 101 struct ia32_ucontext4 { 102 sigset_t uc_sigmask; 103 struct ia32_mcontext4 uc_mcontext; 104 u_int32_t uc_link; 105 struct sigaltstack32 uc_stack; 106 u_int32_t __spare__[8]; 107 }; 108 #endif 109 110 #ifdef COMPAT_FREEBSD3 111 struct ia32_sigcontext3 { 112 u_int32_t sc_onstack; 113 u_int32_t sc_mask; 114 u_int32_t sc_esp; 115 u_int32_t sc_ebp; 116 u_int32_t sc_isp; 117 u_int32_t sc_eip; 118 u_int32_t sc_eflags; 119 u_int32_t sc_es; 120 u_int32_t sc_ds; 121 u_int32_t sc_cs; 122 u_int32_t sc_ss; 123 u_int32_t sc_edi; 124 u_int32_t sc_esi; 125 u_int32_t sc_ebx; 126 u_int32_t sc_edx; 127 u_int32_t sc_ecx; 128 u_int32_t sc_eax; 129 u_int32_t sc_gs; 130 u_int32_t sc_fs; 131 u_int32_t sc_trapno; 132 u_int32_t sc_err; 133 }; 134 #endif 135 136 /* 137 * Signal frames, arguments passed to application signal handlers. 138 */ 139 140 #ifdef COMPAT_FREEBSD4 141 struct ia32_sigframe4 { 142 u_int32_t sf_signum; 143 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 144 u_int32_t sf_ucontext; /* points to sf_uc */ 145 u_int32_t sf_addr; /* undocumented 4th arg */ 146 u_int32_t sf_ah; /* action/handler pointer */ 147 struct ia32_ucontext4 sf_uc; /* = *sf_ucontext */ 148 struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 149 }; 150 #endif 151 152 struct ia32_sigframe { 153 u_int32_t sf_signum; 154 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 155 u_int32_t sf_ucontext; /* points to sf_uc */ 156 u_int32_t sf_addr; /* undocumented 4th arg */ 157 u_int32_t sf_ah; /* action/handler pointer */ 158 /* Beware, hole due to ucontext being 16 byte aligned! */ 159 struct ia32_ucontext sf_uc; /* = *sf_ucontext */ 160 struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 161 }; 162 163 #ifdef COMPAT_FREEBSD3 164 struct ia32_siginfo3 { 165 struct ia32_sigcontext3 si_sc; 166 int si_signo; 167 int si_code; 168 union sigval32 si_value; 169 }; 170 struct ia32_sigframe3 { 171 int sf_signum; 172 u_int32_t sf_arg2; /* int or siginfo_t */ 173 u_int32_t sf_scp; 174 u_int32_t sf_addr; 175 u_int32_t sf_ah; /* action/handler pointer */ 176 struct ia32_siginfo3 sf_siginfo; 177 }; 178 #endif 179 180 struct ksiginfo; 181 extern char ia32_sigcode[]; 182 extern char freebsd4_ia32_sigcode[]; 183 extern int sz_ia32_sigcode; 184 extern int sz_freebsd4_ia32_sigcode; 185 extern void ia32_sendsig(sig_t, struct ksiginfo *, sigset_t *); 186 extern void ia32_setregs(struct thread *td, u_long entry, u_long stack, 187 u_long ps_strings);
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