91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/*-
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* Copyright (c) 1999 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_UCONTEXT_H_
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#define _SYS_UCONTEXT_H_
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#include <sys/signal.h>
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#include <machine/ucontext.h>
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#include <sys/_ucontext.h>
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#define UCF_SWAPPED 0x00000001 /* Used by swapcontext(3). */
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#if defined(_KERNEL) && defined(COMPAT_FREEBSD4)
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#if defined(__i386__)
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struct ucontext4 {
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sigset_t uc_sigmask;
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struct mcontext4 uc_mcontext;
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struct ucontext4 *uc_link;
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stack_t uc_stack;
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int __spare__[8];
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};
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#else /* __i386__ */
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#define ucontext4 ucontext
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#endif /* __i386__ */
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#endif /* _KERNEL */
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#ifndef _KERNEL
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__BEGIN_DECLS
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int getcontext(ucontext_t *) __returns_twice;
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ucontext_t *getcontextx(void);
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int setcontext(const ucontext_t *);
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void makecontext(ucontext_t *, void (*)(void), int, ...);
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int signalcontext(ucontext_t *, int, __sighandler_t *);
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int swapcontext(ucontext_t *, const ucontext_t *);
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#if __BSD_VISIBLE
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int __getcontextx_size(void);
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int __fillcontextx(char *ctx) __returns_twice;
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int __fillcontextx2(char *ctx);
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#endif
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__END_DECLS
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#else /* _KERNEL */
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struct thread;
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/*
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* Flags for get_mcontext(). The low order 4 bits (i.e a mask of 0x0f) are
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* reserved for use by machine independent code. All other bits are for use
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* by machine dependent code.
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*/
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#define GET_MC_CLEAR_RET 1
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/* Machine-dependent functions: */
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int get_mcontext(struct thread *, mcontext_t *, int);
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int set_mcontext(struct thread *, mcontext_t *);
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#endif /* !_KERNEL */
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#endif /* !_SYS_UCONTEXT_H_ */
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