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
  17    not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
  20 # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
  21 #endif
  22
  23 #ifndef sc_pc
  24
  25 /* Signal handlers are actually called:
  26    void handler (int sig, int code, struct sigcontext *scp);  */
  27
  28 /* State of this thread when the signal was taken.  */
  29 struct sigcontext
  30   {
  31     /* These first members are machine-independent.  */
  32
  33     int sc_onstack;             /* Nonzero if running on sigstack.  */
  34     __sigset_t sc_mask;         /* Blocked signals to restore.  */
  35
  36     /* MiG reply port this thread is using.  */
  37     unsigned int sc_reply_port;
  38
  39     /* Port this thread is doing an interruptible RPC on.  */
  40     unsigned int sc_intr_port;
  41
  42     /* Error code associated with this signal (interpreted as `error_t').  */
  43     int sc_error;
  44
  45     /* All following members are machine-dependent.  The rest of this
  46        structure is written to be laid out identically to:
  47        {
  48          struct ppc_thread_state basic;
  49          struct ppc_exc_state exc;
  50          struct ppc_float_state fpu;
  51        }
  52        trampoline.c knows this, so it must be changed if this changes.  */
  53
  54 #define sc_ppc_thread_state sc_srr0 /* Beginning of correspondence.  */
  55 #define sc_pc sc_srr0 /* For sysdeps/generic/profil-counter.h.  */
  56     unsigned int sc_srr0;
  57     unsigned int sc_srr1;
  58     unsigned int sc_gprs[32];
  59     unsigned int sc_cr;
  60     unsigned int sc_xer;
  61     unsigned int sc_lr;
  62     unsigned int sc_ctr;
  63     unsigned int sc_mq;
  64     unsigned int sc_ts_pad;
  65
  66 #define sc_ppc_exc_state sc_dar
  67     unsigned int sc_dar;
  68     unsigned int sc_dsisr;
  69     unsigned int sc_exception;
  70     unsigned int sc_es_pad0;
  71     unsigned int sc_es_pad1[4];
  72
  73 #define sc_ppc_float_state sc_fprs[0]
  74     double sc_fprs[32];
  75     unsigned int sc_fpscr_pad;
  76     unsigned int sc_fpscr;
  77   };
  78
  79 #endif /* sc_pc */