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/5.2/sys/compat/ia32/ia32_signal.h 122303 2003-11-08 07:43:44Z peter $ 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 int mc_onstack; /* XXX - sigcontext compat. */ 40 int mc_gs; /* machine state (struct trapframe) */ 41 int mc_fs; 42 int mc_es; 43 int mc_ds; 44 int mc_edi; 45 int mc_esi; 46 int mc_ebp; 47 int mc_isp; 48 int mc_ebx; 49 int mc_edx; 50 int mc_ecx; 51 int mc_eax; 52 int mc_trapno; 53 int mc_err; 54 int mc_eip; 55 int mc_cs; 56 int mc_eflags; 57 int mc_esp; 58 int mc_ss; 59 int mc_len; /* sizeof(struct ia32_mcontext) */ 60 /* We use the same values for fpformat and ownedfp */ 61 int mc_fpformat; 62 int mc_ownedfp; 63 int mc_spare1[1]; /* align next field to 16 bytes */ 64 /* 65 * See <i386/include/npx.h> for the internals of mc_fpstate[]. 66 */ 67 int mc_fpstate[128] __aligned(16); 68 int 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 int uc_flags; 77 int __spare__[4]; 78 }; 79 80 81 #if defined(COMPAT_FREEBSD4) 82 struct ia32_mcontext4 { 83 int mc_onstack; /* XXX - sigcontext compat. */ 84 int mc_gs; /* machine state (struct trapframe) */ 85 int mc_fs; 86 int mc_es; 87 int mc_ds; 88 int mc_edi; 89 int mc_esi; 90 int mc_ebp; 91 int mc_isp; 92 int mc_ebx; 93 int mc_edx; 94 int mc_ecx; 95 int mc_eax; 96 int mc_trapno; 97 int mc_err; 98 int mc_eip; 99 int mc_cs; 100 int mc_eflags; 101 int mc_esp; 102 int mc_ss; 103 int mc_fpregs[28]; 104 int __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 int __spare__[8]; 113 }; 114 #endif 115 116 /* 117 * Signal frames, arguments passed to application signal handlers. 118 */ 119 union ia32_sigval { 120 int sigval_int; 121 u_int32_t sigval_ptr; 122 }; 123 struct ia32_siginfo { 124 int si_signo; /* signal number */ 125 int si_errno; /* errno association */ 126 int si_code; /* signal code */ 127 int32_t si_pid; /* sending process */ 128 u_int32_t si_uid; /* sender's ruid */ 129 int si_status; /* exit value */ 130 u_int32_t si_addr; /* faulting instruction */ 131 union ia32_sigval si_value; /* signal value */ 132 int32_t si_band; /* band event for SIGPOLL */ 133 int __spare__[7]; /* gimme some slack */ 134 }; 135 136 #ifdef COMPAT_FREEBSD4 137 struct ia32_sigframe4 { 138 u_int32_t sf_signum; 139 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 140 u_int32_t sf_ucontext; /* points to sf_uc */ 141 u_int32_t sf_addr; /* undocumented 4th arg */ 142 u_int32_t sf_ah; /* action/handler pointer */ 143 struct ia32_ucontext4 sf_uc; /* = *sf_ucontext */ 144 struct ia32_siginfo sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 145 }; 146 #endif 147 148 struct ia32_sigframe { 149 u_int32_t sf_signum; 150 u_int32_t sf_siginfo; /* code or pointer to sf_si */ 151 u_int32_t sf_ucontext; /* points to sf_uc */ 152 u_int32_t sf_addr; /* undocumented 4th arg */ 153 u_int32_t sf_ah; /* action/handler pointer */ 154 struct ia32_ucontext sf_uc; /* = *sf_ucontext */ 155 struct ia32_siginfo sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 156 }; 157 158 extern char ia32_sigcode[]; 159 extern char freebsd4_ia32_sigcode[]; 160 extern int sz_ia32_sigcode; 161 extern int sz_freebsd4_ia32_sigcode; 162 extern void ia32_sendsig(sig_t, int, sigset_t *, u_long); 163 extern void ia32_setregs(struct thread *td, u_long entry, u_long stack, 164 u_long ps_strings);
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