diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/bits/ucontext.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/s390/bits/ucontext.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/bits/ucontext.h b/sysdeps/unix/sysv/linux/s390/bits/ucontext.h new file mode 100644 index 0000000000..580f01c03e --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/bits/ucontext.h @@ -0,0 +1,95 @@ +/* Copyright (C) 2000-2020 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 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> + + +#ifdef __USE_MISC +# define __ctx(fld) fld +#else +# define __ctx(fld) __ ## fld +#endif + +/* Type for a program status word. */ +typedef struct +{ + unsigned long __ctx(mask); + unsigned long __ctx(addr); +} __attribute__ ((__aligned__(8))) __psw_t; + +/* 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. This is needed for the + elf_prstatus structure. */ +#if __WORDSIZE == 64 +# define __NGREG 27 +#else +# define __NGREG 36 +#endif +#ifdef __USE_MISC +# define NGREG __NGREG +#endif +/* Must match kernels psw_t alignment. */ +typedef greg_t gregset_t[__NGREG] __attribute__ ((__aligned__(8))); + +typedef union + { + double __ctx(d); + float __ctx(f); + } fpreg_t; + +/* Register set for the floating-point registers. */ +typedef struct + { + unsigned int __ctx(fpc); + fpreg_t __ctx(fprs)[16]; + } fpregset_t; + +/* Context to describe whole processor state. */ +typedef struct + { + __psw_t __ctx(psw); + unsigned long __ctx(gregs)[16]; + unsigned int __ctx(aregs)[16]; + fpregset_t __ctx(fpregs); + } mcontext_t; + +/* Userlevel context. */ +typedef struct ucontext_t + { + unsigned long int __ctx(uc_flags); + struct ucontext_t *uc_link; + stack_t uc_stack; + mcontext_t uc_mcontext; + sigset_t uc_sigmask; + } ucontext_t; + +#undef __ctx + + +#endif /* bits/ucontext.h */ |