diff options
Diffstat (limited to 'sysdeps/unix/sysv/aix/sys/ucontext.h')
| -rw-r--r-- | sysdeps/unix/sysv/aix/sys/ucontext.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/aix/sys/ucontext.h b/sysdeps/unix/sysv/aix/sys/ucontext.h new file mode 100644 index 0000000000..c2ebf0cf13 --- /dev/null +++ b/sysdeps/unix/sysv/aix/sys/ucontext.h @@ -0,0 +1,113 @@ +/* Copyright (C) 1997, 1998, 1999, 2000 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 <bits/types.h> +#include <bits/sigset.h> + + +/* Alternate, preferred interface. */ +typedef struct sigaltstack + { + void *ss_sp; + size_t ss_size; + int ss_flags; + int __pad[4]; + } stack_t; + + +/* Forward declaration of AIX type. */ +typedef struct label_t label_t; + + + +typedef unsigned int kvmhandle_t; +typedef struct + { + unsigned long int __alloc; + kvmhandle_t __srval[16]; + } adspace_t; + + + +#define _NGPRS 32 +#define _NFPRS 32 + +struct __mstsafe +{ + struct __mstsave *__prev; /* Previous save area. */ + label_t *__kjmpbuf; /* Pointer to saved context. */ + char *__stackfix; /* Stack fix pointer. */ + char __intpri; /* Interrupt priority. */ + char __backt; /* Back-track flag. */ + char __rsvd[2]; /* Reserved. */ + __pid_t __curid; /* Copy of curid. */ + + int __excp_type; /* Exception type for debugger. */ + unsigned long int __iar; /* Instruction address register. */ + unsigned long int __msr; /* Machine state register. */ + unsigned long int __cr; /* Condition register. */ + unsigned long int __lr; /* Link register. */ + unsigned long int __ctr; /* Count register. */ + unsigned long int __xer; /* Fixed point exception. */ + unsigned long int __mq; /* Multiply/quotient register. */ + unsigned long int __tid; /* TID register. */ + unsigned long int __fpscr; /* Floating point status reg. */ + char __fpeu; /* Floating point ever used. */ + char __fpinfo; /* Floating point status flags. */ + char __pad[2]; /* Pad to dword boundary. */ + /* 1 implies state is in mstext */ + unsigned long int __except[5]; /* exception structure. */ + char __pad1[4]; /* Old bus field. */ + unsigned long int __o_iar; /* Old iar (for longjmp excpt). */ + unsigned long int __o_toc; /* Old toc (for longjmp excpt). */ + unsigned long int __o_arg1; /* Old arg1 (for longjmp excpt). */ + unsigned long int __excbranch; /* If not NULL, address to branch + to on exception. Used by + assembler routines for low + cost exception handling. */ + unsigned long int __fpscrx; /* Software extension to fpscr. */ + unsigned long int __o_vaddr; /* Saved vaddr for vmexception. */ + unsigned long int __cachealign[7]; /* Reserved. */ + adspace_t __as; /* Segment registers. */ + unsigned long int __gpr[_NGPRS]; /* General purpose registers. */ + double __fpr[_NFPRS]; /* Floating point registers. */ + }; + +typedef struct mcontext_t + { + struct __mstsafe __jmp_context; + } mcontext_t; + + +typedef struct ucontext_t + { + int __sc_onstack; /* Sigstack state to restore. */ + __sigset_t uc_sigmask; /* The set of signals that are blocked when + this context is active. */ + int __sc_uerror; /* u_error to restore. */ + mcontext_t uc_mcontext; /* Machine-specific image of saved context. */ + struct ucontext_t *uc_link; /* context resumed after this one returns */ + stack_t uc_stack; /* stack used by context */ + int __pad[4]; + } ucontext_t; + +#endif /* sys/ucontext.h */ |