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

   1 /* Machine-dependent signal context structure for GNU Hurd.  PowerPC version.
   2    Copyright (C) 2001,02 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 Lesser General Public License as
   7    published by the Free Software Foundation; either version 2.1 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser 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 #if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
  21 # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
  22 #endif
  23
  24 #ifndef sc_pc
  25
  26 /* Signal handlers are actually called:
  27    void handler (int sig, int code, struct sigcontext *scp);  */
  28
  29 /* State of this thread when the signal was taken.  */
  30 struct sigcontext
  31   {
  32     /* These first members are machine-independent.  */
  33
  34     int sc_onstack;             /* Nonzero if running on sigstack.  */
  35     __sigset_t sc_mask;         /* Blocked signals to restore.  */
  36
  37     /* MiG reply port this thread is using.  */
  38     unsigned int sc_reply_port;
  39
  40     /* Port this thread is doing an interruptible RPC on.  */
  41     unsigned int sc_intr_port;
  42
  43     /* Error code associated with this signal (interpreted as `error_t').  */
  44     int sc_error;
  45
  46     /* All following members are machine-dependent.  The rest of this
  47        structure is written to be laid out identically to:
  48        {
  49          struct ppc_thread_state basic;
  50          struct ppc_exc_state exc;
  51          struct ppc_float_state fpu;
  52        }
  53        trampoline.c knows this, so it must be changed if this changes.  */
  54
  55 #define sc_ppc_thread_state sc_srr0 /* Beginning of correspondence.  */
  56 #define sc_pc sc_srr0 /* For sysdeps/generic/profil-counter.h.  */
  57     unsigned int sc_srr0;
  58     unsigned int sc_srr1;
  59     unsigned int sc_gprs[32];
  60     unsigned int sc_cr;
  61     unsigned int sc_xer;
  62     unsigned int sc_lr;
  63     unsigned int sc_ctr;
  64     unsigned int sc_mq;
  65     unsigned int sc_ts_pad;
  66
  67 #define sc_ppc_exc_state sc_dar
  68     unsigned int sc_dar;
  69     unsigned int sc_dsisr;
  70     unsigned int sc_exception;
  71     unsigned int sc_es_pad0;
  72     unsigned int sc_es_pad1[4];
  73
  74 #define sc_ppc_float_state sc_fprs[0]
  75     double sc_fprs[32];
  76     unsigned int sc_fpscr_pad;
  77     unsigned int sc_fpscr;
  78   };
  79
  80 #endif /* sc_pc */