diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/sys')
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/sys/ucontext.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/sys/ucontext.h b/sysdeps/unix/sysv/linux/i386/sys/ucontext.h new file mode 100644 index 0000000000..ccc32b661a --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/sys/ucontext.h @@ -0,0 +1,106 @@ +/* Copyright (C) 1997 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 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 + +#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 general register. */ +typedef int greg_t; + +/* Number of general registers. */ +#define NGREG 19 + +/* Container for all general registers. */ +typedef greg_t gregset_t[NGREG]; + +/* Number of each register is the `gregset_t' array. */ +enum +{ + GS = 0, +#define GS GS + FS, +#define FS FS + ES, +#define ES ES + DS, +#define DS DS + EDI, +#define EDI EDI + ESI, +#define ESI ESI + EBP, +#define EBP EBP + ESP, +#define ESP ESP + EBX, +#define EBX EBX + EDX, +#define EDX EDX + ECX, +#define ECX ECX + EAX, +#define EAX EAX + TRAPNO, +#define TRAPNO TRAPNO + ERR, +#define ERR ERR + EIP, +#define EIP EIP + CS, +#define CS CS + EFL, +#define EFL EFL + UESP, +#define UESP UESP + SS +#define SS SS +}; + +/* Structure to describe FPU registers. */ +typedef struct _fpstate *fpregset_t; + +/* Context to describe whole processor state. */ +typedef struct + { + gregset_t gregs; + /* Due to Linux's history we have to use a pointer here. The SysV/i386 + ABI requires a struct with the values. */ + fpregset_t fpregs; + unsigned long int oldmask; + unsigned long int cr2; + } mcontext_t; + +/* Userlevel context. */ +typedef struct ucontext + { + unsigned long int uc_flags; + struct ucontext *uc_links; + stack_t uc_stack; + mcontext_t uc_mcontext; + __sigset_t uc_sigmask; + } ucontext_t; + +#endif /* sys/ucontext.h */ |