| /* Copyright (C) 1996-2018 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/>. */ |
| |
| #ifndef _BITS_SIGCONTEXT_H |
| #define _BITS_SIGCONTEXT_H 1 |
| |
| #if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H |
| # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead." |
| #endif |
| |
| #define __need_size_t |
| #include <stddef.h> |
| #include <bits/sigstack.h> |
| #include <bits/types/struct_sigstack.h> |
| #include <bits/types/stack_t.h> |
| #include <bits/ss_flags.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 */ |