diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/bits/ucontext.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/bits/ucontext.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/bits/ucontext.h b/sysdeps/unix/sysv/linux/ia64/bits/ucontext.h new file mode 100644 index 0000000000..ce1503368d --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/bits/ucontext.h @@ -0,0 +1,98 @@ +/* Copyright (C) 1998-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 + <https://www.gnu.org/licenses/>. */ + +#ifndef _BITS_UCONTEXT_H +#define _BITS_UCONTEXT_H 1 + +#include <features.h> + +#include <bits/types/sigset_t.h> +#include <bits/types/stack_t.h> +#include <bits/types/__ia64_fpreg.h> + +#ifdef __USE_MISC +# define __ctx(fld) fld +#else +# define __ctx(fld) __ ## fld +#endif + +/* + * These are here mostly for backwards compatibility with older Unices. + * IA-64 Linux does not distinguish between "mcontext_t" and + * "ucontext_t" as all the necessary info is inside the former. + */ + +typedef struct + { + unsigned long int __ctx(sc_flags); + unsigned long int __ctx(sc_nat); + stack_t __ctx(sc_stack); + unsigned long int __ctx(sc_ip); + unsigned long int __ctx(sc_cfm); + unsigned long int __ctx(sc_um); + unsigned long int __ctx(sc_ar_rsc); + unsigned long int __ctx(sc_ar_bsp); + unsigned long int __ctx(sc_ar_rnat); + unsigned long int __ctx(sc_ar_ccv); + unsigned long int __ctx(sc_ar_unat); + unsigned long int __ctx(sc_ar_fpsr); + unsigned long int __ctx(sc_ar_pfs); + unsigned long int __ctx(sc_ar_lc); + unsigned long int __ctx(sc_pr); + unsigned long int __ctx(sc_br)[8]; + unsigned long int __ctx(sc_gr)[32]; + struct __ia64_fpreg __ctx(sc_fr)[128]; + unsigned long int __ctx(sc_rbs_base); + unsigned long int __ctx(sc_loadrs); + unsigned long int __ctx(sc_ar25); + unsigned long int __ctx(sc_ar26); + unsigned long int __ctx(sc_rsvd)[12]; + unsigned long int __ctx(sc_mask); + } mcontext_t; + +#if __GNUC_PREREQ (3, 5) +# define _SC_GR0_OFFSET \ + __builtin_offsetof (mcontext_t, __ctx(sc_gr)[0]) +#elif defined __GNUC__ +# define _SC_GR0_OFFSET \ + (((char *) &((mcontext_t *) 0)->__ctx(sc_gr)[0]) - (char *) 0) +#else +# define _SC_GR0_OFFSET 0xc8 /* pray that this is correct... */ +#endif + +typedef struct ucontext_t + { + union + { + mcontext_t _mc; + struct + { + unsigned long _pad[_SC_GR0_OFFSET/8]; + struct ucontext_t *_link; /* this should overlay sc_gr[0] */ + } + _uc; + } + _u; + } +ucontext_t; + +#define uc_mcontext _u._mc +#define uc_sigmask _u._mc.__ctx(sc_mask) +#define uc_stack _u._mc.__ctx(sc_stack) +#define uc_link _u._uc._link + +#endif /* bits/ucontext.h */ |