/* Copyright (C) 1996, 1997, 1998, 2000, 2001, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jes Sorensen <jes@linuxcare.com>, July 2000 The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead." #endif #ifndef _BITS_SIGCONTEXT_H #define _BITS_SIGCONTEXT_H 1 #include <bits/sigstack.h> struct ia64_fpreg { union { unsigned long bits[2]; } u; } __attribute__ ((aligned (16))); struct sigcontext { unsigned long int sc_flags; /* see manifest constants below */ unsigned long int sc_nat; /* bit i == 1 iff scratch reg gr[i] is a NaT */ stack_t sc_stack; /* previously active stack */ unsigned long int sc_ip; /* instruction pointer */ unsigned long int sc_cfm; /* current frame marker */ unsigned long int sc_um; /* user mask bits */ unsigned long int sc_ar_rsc; /* register stack configuration register */ unsigned long int sc_ar_bsp; /* backing store pointer */ unsigned long int sc_ar_rnat; /* RSE NaT collection register */ unsigned long int sc_ar_ccv; /* compare & exchange compare value register */ unsigned long int sc_ar_unat; /* ar.unat of interrupted context */ unsigned long int sc_ar_fpsr; /* floating-point status register */ unsigned long int sc_ar_pfs; /* previous function state */ unsigned long int sc_ar_lc; /* loop count register */ unsigned long int sc_pr; /* predicate registers */ unsigned long int sc_br[8]; /* branch registers */ unsigned long int sc_gr[32]; /* general registers (static partition) */ struct ia64_fpreg sc_fr[128]; /* floating-point registers */ unsigned long int sc_rbs_base;/* NULL or new base of sighandler's rbs */ unsigned long int sc_loadrs; /* see description above */ unsigned long int sc_ar25; /* cmp8xchg16 uses this */ unsigned long int sc_ar26; /* rsvd for scratch use */ unsigned long int sc_rsvd[12];/* reserved for future use */ /* sc_mask is actually an sigset_t but we don't want to * include the kernel headers here. */ unsigned long int sc_mask; /* signal mask to restore after handler returns */ }; /* sc_flag bit definitions. */ #define IA64_SC_FLAG_ONSTACK_BIT 0 /* is handler running on signal stack? */ #define IA64_SC_FLAG_IN_SYSCALL_BIT 1 /* did signal interrupt a syscall? */ #define IA64_SC_FLAG_FPH_VALID_BIT 2 /* is state in f[32]-f[127] valid? */ #define IA64_SC_FLAG_ONSTACK (1 << IA64_SC_FLAG_ONSTACK_BIT) #define IA64_SC_FLAG_IN_SYSCALL (1 << IA64_SC_FLAG_IN_SYSCALL_BIT) #define IA64_SC_FLAG_FPH_VALID (1 << IA64_SC_FLAG_FPH_VALID_BIT) #endif /* _BITS_SIGCONTEXT_H */