The Design and Implementation of the FreeBSD Operating System, Second Edition
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/11.2/sys/compat/ia32/ia32_signal.h 307135 2016-10-12 09:16:16Z ed $
   30  */
   31 
   32 #ifndef _COMPAT_IA32_IA32_SIGNAL_H
   33 #define _COMPAT_IA32_IA32_SIGNAL_H
   34 
   35 #include <compat/freebsd32/freebsd32_signal.h>
   36 
   37 #define _MC_IA32_HASSEGS        0x1
   38 #define _MC_IA32_HASBASES       0x2
   39 #define _MC_IA32_HASFPXSTATE    0x4
   40 #define _MC_IA32_FLAG_MASK      \
   41     (_MC_IA32_HASSEGS | _MC_IA32_HASBASES | _MC_IA32_HASFPXSTATE)
   42 
   43 struct ia32_mcontext {
   44         u_int32_t       mc_onstack;             /* XXX - sigcontext compat. */
   45         u_int32_t       mc_gs;                  /* machine state (struct trapframe) */
   46         u_int32_t       mc_fs;
   47         u_int32_t       mc_es;
   48         u_int32_t       mc_ds;
   49         u_int32_t       mc_edi;
   50         u_int32_t       mc_esi;
   51         u_int32_t       mc_ebp;
   52         u_int32_t       mc_isp;
   53         u_int32_t       mc_ebx;
   54         u_int32_t       mc_edx;
   55         u_int32_t       mc_ecx;
   56         u_int32_t       mc_eax;
   57         u_int32_t       mc_trapno;
   58         u_int32_t       mc_err;
   59         u_int32_t       mc_eip;
   60         u_int32_t       mc_cs;
   61         u_int32_t       mc_eflags;
   62         u_int32_t       mc_esp;
   63         u_int32_t       mc_ss;
   64         u_int32_t       mc_len;                 /* sizeof(struct ia32_mcontext) */
   65         /* We use the same values for fpformat and ownedfp */
   66         u_int32_t       mc_fpformat;
   67         u_int32_t       mc_ownedfp;
   68         u_int32_t       mc_flags;
   69         /*
   70          * See <i386/include/npx.h> for the internals of mc_fpstate[].
   71          */
   72         u_int32_t       mc_fpstate[128] __aligned(16);
   73         u_int32_t       mc_fsbase;
   74         u_int32_t       mc_gsbase;
   75         u_int32_t       mc_xfpustate;
   76         u_int32_t       mc_xfpustate_len;
   77         u_int32_t       mc_spare2[4];
   78 };
   79 
   80 struct ia32_ucontext {
   81         sigset_t                uc_sigmask;
   82         struct ia32_mcontext    uc_mcontext;
   83         u_int32_t               uc_link;
   84         struct sigaltstack32    uc_stack;
   85         u_int32_t               uc_flags;
   86         u_int32_t               __spare__[4];
   87 };
   88 
   89 
   90 #if defined(COMPAT_FREEBSD4)
   91 struct ia32_mcontext4 {
   92         u_int32_t       mc_onstack;             /* XXX - sigcontext compat. */
   93         u_int32_t       mc_gs;                  /* machine state (struct trapframe) */
   94         u_int32_t       mc_fs;
   95         u_int32_t       mc_es;
   96         u_int32_t       mc_ds;
   97         u_int32_t       mc_edi;
   98         u_int32_t       mc_esi;
   99         u_int32_t       mc_ebp;
  100         u_int32_t       mc_isp;
  101         u_int32_t       mc_ebx;
  102         u_int32_t       mc_edx;
  103         u_int32_t       mc_ecx;
  104         u_int32_t       mc_eax;
  105         u_int32_t       mc_trapno;
  106         u_int32_t       mc_err;
  107         u_int32_t       mc_eip;
  108         u_int32_t       mc_cs;
  109         u_int32_t       mc_eflags;
  110         u_int32_t       mc_esp; 
  111         u_int32_t       mc_ss;
  112         u_int32_t       mc_fpregs[28];
  113         u_int32_t       __spare__[17];
  114 };
  115 
  116 struct ia32_ucontext4 {
  117         sigset_t                uc_sigmask;
  118         struct ia32_mcontext4   uc_mcontext;
  119         u_int32_t               uc_link;
  120         struct sigaltstack32    uc_stack;
  121         u_int32_t               __spare__[8];
  122 };
  123 #endif
  124 
  125 #ifdef COMPAT_43
  126 struct ia32_sigcontext3 {
  127         u_int32_t       sc_onstack;
  128         u_int32_t       sc_mask;
  129         u_int32_t       sc_esp; 
  130         u_int32_t       sc_ebp;
  131         u_int32_t       sc_isp;
  132         u_int32_t       sc_eip;
  133         u_int32_t       sc_eflags;
  134         u_int32_t       sc_es;
  135         u_int32_t       sc_ds;
  136         u_int32_t       sc_cs;
  137         u_int32_t       sc_ss;
  138         u_int32_t       sc_edi;
  139         u_int32_t       sc_esi;
  140         u_int32_t       sc_ebx;
  141         u_int32_t       sc_edx;
  142         u_int32_t       sc_ecx;
  143         u_int32_t       sc_eax;
  144         u_int32_t       sc_gs;
  145         u_int32_t       sc_fs;
  146         u_int32_t       sc_trapno;
  147         u_int32_t       sc_err;
  148 };
  149 #endif
  150 
  151 /*
  152  * Signal frames, arguments passed to application signal handlers.
  153  */
  154 
  155 #ifdef COMPAT_FREEBSD4
  156 struct ia32_sigframe4 {
  157         u_int32_t               sf_signum;
  158         u_int32_t               sf_siginfo;     /* code or pointer to sf_si */
  159         u_int32_t               sf_ucontext;    /* points to sf_uc */
  160         u_int32_t               sf_addr;        /* undocumented 4th arg */
  161         u_int32_t               sf_ah;          /* action/handler pointer */
  162         struct ia32_ucontext4   sf_uc;          /* = *sf_ucontext */
  163         struct siginfo32        sf_si;          /* = *sf_siginfo (SA_SIGINFO case) */
  164 };
  165 #endif
  166 
  167 struct ia32_sigframe {
  168         u_int32_t               sf_signum;
  169         u_int32_t               sf_siginfo;     /* code or pointer to sf_si */
  170         u_int32_t               sf_ucontext;    /* points to sf_uc */
  171         u_int32_t               sf_addr;        /* undocumented 4th arg */
  172         u_int32_t               sf_ah;          /* action/handler pointer */
  173         /* Beware, hole due to ucontext being 16 byte aligned! */
  174         struct ia32_ucontext    sf_uc;          /* = *sf_ucontext */
  175         struct siginfo32        sf_si;          /* = *sf_siginfo (SA_SIGINFO case) */
  176 };
  177 
  178 #ifdef COMPAT_43
  179 struct ia32_siginfo3 {
  180         struct ia32_sigcontext3 si_sc;
  181         int                     si_signo;
  182         int                     si_code;
  183         union sigval32          si_value;
  184 };
  185 struct ia32_sigframe3 {
  186         int                     sf_signum;
  187         u_int32_t               sf_arg2;        /* int or siginfo_t */
  188         u_int32_t               sf_scp;
  189         u_int32_t               sf_addr;
  190         u_int32_t               sf_ah;          /* action/handler pointer */
  191         struct ia32_siginfo3    sf_siginfo;
  192 };
  193 #endif
  194 
  195 struct ksiginfo;
  196 struct image_params;
  197 extern char ia32_sigcode[];
  198 extern char freebsd4_ia32_sigcode[];
  199 extern char ia32_osigcode[];
  200 extern char lcall_tramp;
  201 extern int sz_ia32_sigcode;
  202 extern int sz_freebsd4_ia32_sigcode;
  203 extern int sz_ia32_osigcode;
  204 extern int sz_lcall_tramp;
  205 void ia32_sendsig(sig_t, struct ksiginfo *, sigset_t *);
  206 void ia32_setregs(struct thread *td, struct image_params *imgp,
  207     u_long stack);
  208 int setup_lcall_gate(void);
  209 
  210 #endif

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