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_sigaltstack { 33 u_int32_t ss_sp; /* signal stack base */ 34 u_int32_t ss_size; /* signal stack length */ 35 int ss_flags; /* SS_DISABLE and/or SS_ONSTACK */ 36 }; 37 38 struct ia32_mcontext { 39 u_int32_t mc_onstack; /* XXX - sigcontext compat. */ 40 u_int32_t mc_gs; /* machine state (struct trapframe) */ 41 u_int32_t mc_fs; 42 u_int32_t mc_es; 43 u_int32_t mc_ds; 44 u_int32_t mc_edi; 45 u_int32_t mc_esi; 46 u_int32_t mc_ebp; 47 u_int32_t mc_isp; 48 u_int32_t mc_ebx; 49 u_int32_t mc_edx; 50 u_int32_t mc_ecx; 51 u_int32_t mc_eax; 52 u_int32_t mc_trapno; 53 u_int32_t mc_err; 54 u_int32_t mc_eip; 55 u_int32_t mc_cs; 56 u_int32_t mc_eflags; 57 u_int32_t mc_esp; 58 u_int32_t mc_ss; 59 u_int32_t mc_len; /* sizeof(struct ia32_mcontext) */ 60 /* We use the same values for fpformat and ownedfp */ 61 u_int32_t mc_fpformat; 62 u_int32_t mc_ownedfp; 63 u_int32_t mc_spare1[1]; /* align next field to 16 bytes */ 64 /* 65 * See <i386/include/npx.h> for the internals of mc_fpstate[]. 66 */ 67 u_int32_t mc_fpstate[128] __aligned(16); 68 u_int32_t mc_spare2[8]; 69 }; 70 71 struct ia32_ucontext { 72 sigset_t uc_sigmask; 73 struct ia32_mcontext uc_mcontext; 74 u_int32_t uc_link; 75 struct ia32_sigaltstack uc_stack; 76 u_int32_t uc_flags; 77 u_int32_t __spare__[4]; 78 }; 79 80 81 #if defined(COMPAT_FREEBSD4) 82 struct ia32_mcontext4 { 83 u_int32_t mc_onstack; /* XXX - sigcontext compat. */ 84 u_int32_t mc_gs; /* machine state (struct trapframe) */ 85 u_int32_t mc_fs; 86 u_int32_t mc_es; 87 u_int32_t mc_ds; 88 u_int32_t mc_edi; 89 u_int32_t mc_esi; 90 u_int32_t mc_ebp; 91 u_int32_t mc_isp; 92 u_int32_t mc_ebx; 93 u_int32_t mc_edx; 94 u_int32_t mc_ecx; 95 u_int32_t mc_eax; 96 u_int32_t mc_trapno; 97 u_int32_t mc_err; 98 u_int32_t mc_eip; 99 u_int32_t mc_cs; 100 u_int32_t mc_eflags; 101 u_int32_t mc_esp; 102 u_int32_t mc_ss; 103 u_int32_t mc_fpregs[28]; 104 u_int32_t __spare__[17]; 105 }; 106 107 struct ia32_ucontext4 { 108 sigset_t uc_sigmask; 109 struct ia32_mcontext4 uc_mcontext; 110 u_int32_t uc_link; 111 struct ia32_sigaltstack uc_stack; 112 u_int32_t __spare__[8]; 113 }; 114 #endif 115 116 #ifdef COMPAT_FREEBSD3 117 struct ia32_sigcontext3 { 118 u_int32_t sc_onstack; 119 u_int32_t sc_mask; 120 u_int32_t sc_esp; 121 u_int32_t sc_ebp; 122 u_int32_t sc_isp; 123 u_int32_t sc_eip; 124 u_int32_t sc_eflags; 125 u_int32_t sc_es; 126 u_int32_t sc_ds; 127 u_int32_t sc_cs; 128 u_int32_t sc_ss; 129 u_int32_t sc_edi; 130 u_int32_t sc_esi; 131 u_int32_t sc_ebx; 132 u_int32_t sc_edx; 133 u_int32_t sc_ecx; 134 u_int32_t sc_eax; 135 u_int32_t sc_gs; 136 u_int32_t sc_fs; 137 u_int32_t sc_trapno; 138 u_int32_t sc_err; 139 }; 140 #endif 141 142 /* 143 * Signal frames, arguments passed to application signal handlers. 144 */ 145 union ia32_sigval { 146 int sigval_int; 147 u_int32_t sigval_ptr; 148 }; 149 struct ia32_siginfo { 150 int si_signo; /* signal number */ 151 int si_errno; /* errno association */ 152 int si_code; /* signal code */ 153 int32_t si_pid; /* sending process */ 154 u_int32_t si_uid; /* sender's ruid */ 155 int si_status; /* exit value */ 156 u_int32_t si_addr; /* faulting instruction */ 157 union ia32_sigval si_value; /* signal value */ 158 int32_t si_band; /* band event for SIGPOLL */ 159 int __spare__[7]; /* gimme some slack */ 160 }; 161 162 #ifdef COMPAT_FREEBSD4 163 struct ia32_sigframe4 { 164 u_int32_t sf_signum; 165 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 166 u_int32_t sf_ucontext; /* points to sf_uc */ 167 u_int32_t sf_addr; /* undocumented 4th arg */ 168 u_int32_t sf_ah; /* action/handler pointer */ 169 struct ia32_ucontext4 sf_uc; /* = *sf_ucontext */ 170 struct ia32_siginfo sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 171 }; 172 #endif 173 174 struct ia32_sigframe { 175 u_int32_t sf_signum; 176 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 177 u_int32_t sf_ucontext; /* points to sf_uc */ 178 u_int32_t sf_addr; /* undocumented 4th arg */ 179 u_int32_t sf_ah; /* action/handler pointer */ 180 /* Beware, hole due to ucontext being 16 byte aligned! */ 181 struct ia32_ucontext sf_uc; /* = *sf_ucontext */ 182 struct ia32_siginfo sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 183 }; 184 185 #ifdef COMPAT_FREEBSD3 186 struct ia32_siginfo3 { 187 struct ia32_sigcontext3 si_sc; 188 int si_signo; 189 int si_code; 190 union ia32_sigval si_value; 191 }; 192 struct ia32_sigframe3 { 193 int sf_signum; 194 u_int32_t sf_arg2; /* int or siginfo_t */ 195 u_int32_t sf_scp; 196 u_int32_t sf_addr; 197 u_int32_t sf_ah; /* action/handler pointer */ 198 struct ia32_siginfo3 sf_siginfo; 199 }; 200 #endif 201 202 extern char ia32_sigcode[]; 203 extern char freebsd4_ia32_sigcode[]; 204 extern int sz_ia32_sigcode; 205 extern int sz_freebsd4_ia32_sigcode; 206 extern void ia32_sendsig(sig_t, int, sigset_t *, u_long); 207 extern void ia32_setregs(struct thread *td, u_long entry, u_long stack, 208 u_long ps_strings);
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