diff options
Diffstat (limited to 'libc/sysdeps/linux/ia64/bits/sigcontext.h')
| -rw-r--r-- | libc/sysdeps/linux/ia64/bits/sigcontext.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/ia64/bits/sigcontext.h b/libc/sysdeps/linux/ia64/bits/sigcontext.h new file mode 100644 index 000000000..72c60ec24 --- /dev/null +++ b/libc/sysdeps/linux/ia64/bits/sigcontext.h @@ -0,0 +1,79 @@ +/* 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#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 */ |