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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