sysdeps/mach/hurd/hppa/bits/sigcontext.h

   1 /* Machine-dependent signal context structure for GNU Hurd.  HPPA version.
   2    Copyright (C) 1995, 1997 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef _SIGNAL_H
  21 # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
  22 #endif
  23
  24 /* Signal handlers are actually called:
  25    void handler (int sig, int code, struct sigcontext *scp);  */
  26
  27 /* State of this thread when the signal was taken.  */
  28 struct sigcontext
  29   {
  30     /* These first members are machine-independent.  */
  31
  32     int sc_onstack;             /* Nonzero if running on sigstack.  */
  33     __sigset_t sc_mask;         /* Blocked signals to restore.  */
  34
  35     /* MiG reply port this thread is using.  */
  36     unsigned int sc_reply_port;
  37
  38     /* Port this thread is doing an interruptible RPC on.  */
  39     unsigned int sc_intr_port;
  40
  41     /* Error code associated with this signal (interpreted as `error_t').  */
  42     int sc_error;
  43
  44     /* All following members are machine-dependent.  The rest of this
  45        structure is written to be laid out identically to a `struct
  46        parisc_thread_state'.  trampoline.c knows this, so it must be
  47        changed if this changes.  */
  48
  49 #define sc_parisc_thread_state sc_flags /* Beginning of correspondence.  */
  50     /* "General" registers $1..$31.  */
  51     unsigned int sc_regs[31];
  52
  53     /* Control registers.  */
  54     unsigned int sc_cr11;       /* sar */
  55     /* These four registers make up the PC.  */
  56     unsigned int iioq_head;
  57     unsigned int iisq_head;
  58     unsigned int iioq_tail;
  59     unsigned int iisq_tail;
  60     unsigned int sc_cr15;
  61     unsigned int sc_cr19;
  62     unsigned int sc_cr20;
  63     unsigned int sc_cr21;
  64     unsigned int sc_cr22;       /* ipsw */
  65     unsigned int sc_bsd_goto;   /* unused */
  66     unsigned int sc_sr4;
  67     unsigned int sc_sr0;
  68     unsigned int sc_sr1;
  69     unsigned int sc_sr2;
  70     unsigned int sc_sr3;
  71     unsigned int sc_sr5;
  72     unsigned int sc_sr6;
  73     unsigned int sc_sr7;
  74     unsigned int sc_cr0;
  75     unsigned int sc_cr8;
  76     unsigned int sc_cr9;
  77     unsigned int sc_cr10;       /* unused */
  78     unsigned int sc_cr12;
  79     unsigned int sc_cr13;
  80     unsigned int sc_cr24;       /* unused */
  81     unsigned int sc_cr25;       /* unused */
  82     unsigned int sc_cr26;       /* unused */
  83     unsigned sc_mpsfu_high;     /* unused */
  84     unsigned sc_mpsfu_low;      /* unused */
  85     unsigned sc_mpsfu_ovflo;    /* unused */
  86     int sc_pad;
  87
  88     /* Floating point registers $f0..$f31.  */
  89     double sc_fpregs[32];
  90   };