diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-64/sys/ucontext.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-64/sys/ucontext.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/sys/ucontext.h b/sysdeps/unix/sysv/linux/s390/s390-64/sys/ucontext.h new file mode 100644 index 0000000000..773841cf01 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/s390-64/sys/ucontext.h @@ -0,0 +1,77 @@ +/* Copyright (C) 2001 Free Software Foundation, Inc. + Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com). + 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 +/* Forward definition to avoid parse errors */ +struct ucontext; +typedef struct ucontext ucontext_t; +#include <features.h> +#include <signal.h> + +/* We need the signal context definitions even if they are not used + included in <signal.h>. */ +#include <bits/sigcontext.h> + + +/* Type for a general-purpose register. */ +typedef unsigned long greg_t; + +/* And the whole bunch of them. We should have used `struct s390_regs', + but to avoid name space pollution and since the tradition says that + the register set is an array, we make gregset_t a simple array + that has the same size as s390_regs. */ +#define NGREG 27 +#define NUM_FPRS 16 +/* Must match kernels psw_t alignment */ +typedef greg_t gregset_t[NGREG] __attribute__ ((aligned(8))); + +typedef union +{ + double d; + float f; +} fpreg_t; + +/* Register set for the floating-point registers. */ +typedef struct { + unsigned int fpc; + fpreg_t fprs[NUM_FPRS]; +} fpregset_t; + +/* Context to describe whole processor state. */ +typedef struct + { + int version; + gregset_t gregs; + fpregset_t fpregs; + } mcontext_t; + +/* Userlevel context. */ +struct ucontext + { + unsigned long int uc_flags; + struct ucontext *uc_links; + __sigset_t uc_sigmask; + stack_t uc_stack; + mcontext_t uc_mcontext; + long int uc_filler[170]; + }; + + +#endif /* sys/ucontext.h */ |