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 /* XXX should be 640 bytes long; check and see if __packed is needed */ 39 struct ia32_mcontext { 40 int mc_onstack; /* XXX - sigcontext compat. */ 41 int mc_gs; /* machine state (struct trapframe) */ 42 int mc_fs; 43 int mc_es; 44 int mc_ds; 45 int mc_edi; 46 int mc_esi; 47 int mc_ebp; 48 int mc_isp; 49 int mc_ebx; 50 int mc_edx; 51 int mc_ecx; 52 int mc_eax; 53 int mc_trapno; 54 int mc_err; 55 int mc_eip; 56 int mc_cs; 57 int mc_eflags; 58 int mc_esp; 59 int mc_ss; 60 int mc_len; /* sizeof(struct ia32_mcontext) */ 61 /* We use the same values for fpformat and ownedfp */ 62 int mc_fpformat; 63 int mc_ownedfp; 64 int mc_spare1[1]; /* align next field to 16 bytes */ 65 /* 66 * See <machine/npx.h> for the internals of mc_fpstate[]. 67 */ 68 int mc_fpstate[128] __aligned(16); 69 int mc_spare2[8]; 70 }; 71 72 /* XXX should be 704 bytes long; check and see if __packed is needed */ 73 struct ia32_ucontext { 74 sigset_t uc_sigmask; 75 struct ia32_mcontext uc_mcontext; 76 u_int32_t uc_link; 77 struct ia32_sigaltstack uc_stack; 78 int uc_flags; 79 int __spare__[4]; 80 }; 81 82 83 #if defined(COMPAT_FREEBSD4) 84 struct ia32_mcontext4 { 85 int mc_onstack; /* XXX - sigcontext compat. */ 86 int mc_gs; /* machine state (struct trapframe) */ 87 int mc_fs; 88 int mc_es; 89 int mc_ds; 90 int mc_edi; 91 int mc_esi; 92 int mc_ebp; 93 int mc_isp; 94 int mc_ebx; 95 int mc_edx; 96 int mc_ecx; 97 int mc_eax; 98 int mc_trapno; 99 int mc_err; 100 int mc_eip; 101 int mc_cs; 102 int mc_eflags; 103 int mc_esp; 104 int mc_ss; 105 int mc_fpregs[28]; 106 int __spare__[17]; 107 }; 108 109 struct ia32_ucontext4 { 110 sigset_t uc_sigmask; 111 struct ia32_mcontext4 uc_mcontext; 112 u_int32_t uc_link; 113 struct ia32_sigaltstack uc_stack; 114 int __spare__[8]; 115 }; 116 #endif 117 118 /* 119 * Signal frames, arguments passed to application signal handlers. 120 */ 121 union ia32_sigval { 122 int sigval_int; 123 u_int32_t sigval_ptr; 124 }; 125 struct ia32_siginfo { 126 int si_signo; /* signal number */ 127 int si_errno; /* errno association */ 128 int si_code; /* signal code */ 129 int32_t si_pid; /* sending process */ 130 u_int32_t si_uid; /* sender's ruid */ 131 int si_status; /* exit value */ 132 u_int32_t si_addr; /* faulting instruction */ 133 union ia32_sigval si_value; /* signal value */ 134 int32_t si_band; /* band event for SIGPOLL */ 135 int __spare__[7]; /* gimme some slack */ 136 }; 137 138 #ifdef COMPAT_FREEBSD4 139 struct ia32_sigframe4 { 140 u_int32_t sf_signum; 141 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 142 u_int32_t sf_ucontext; /* points to sf_uc */ 143 u_int32_t sf_addr; /* undocumented 4th arg */ 144 u_int32_t sf_ah; /* action/handler pointer */ 145 struct ia32_ucontext4 sf_uc; /* = *sf_ucontext */ 146 struct ia32_siginfo sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 147 }; 148 #endif 149 150 struct ia32_sigframe { 151 u_int32_t sf_signum; 152 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 153 u_int32_t sf_ucontext; /* points to sf_uc */ 154 u_int32_t sf_addr; /* undocumented 4th arg */ 155 u_int32_t sf_ah; /* action/handler pointer */ 156 struct ia32_ucontext sf_uc; /* = *sf_ucontext */ 157 struct ia32_siginfo sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 158 }; 159 160 extern char ia32_sigcode[]; 161 extern char freebsd4_ia32_sigcode[]; 162 extern int sz_ia32_sigcode; 163 extern int sz_freebsd4_ia32_sigcode; 164 extern void ia32_sendsig(sig_t, int, sigset_t *, u_long); 165