a1ca31e42c
amd64/include/ucontext.h. The later is better worded. Requested by: deischen MFC after: 3 days
112 lines
3.6 KiB
C
112 lines
3.6 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 _MACHINE_UCONTEXT_H_
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#define _MACHINE_UCONTEXT_H_
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typedef struct __mcontext {
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/*
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* The definition of mcontext_t must match the layout of
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* struct sigcontext after the sc_mask member. This is so
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* that we can support sigcontext and ucontext_t at the same
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* time.
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*/
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__register_t mc_onstack; /* XXX - sigcontext compat. */
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__register_t mc_gs; /* machine state (struct trapframe) */
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__register_t mc_fs;
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__register_t mc_es;
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__register_t mc_ds;
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__register_t mc_edi;
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__register_t mc_esi;
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__register_t mc_ebp;
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__register_t mc_isp;
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__register_t mc_ebx;
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__register_t mc_edx;
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__register_t mc_ecx;
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__register_t mc_eax;
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__register_t mc_trapno;
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__register_t mc_err;
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__register_t mc_eip;
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__register_t mc_cs;
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__register_t mc_eflags;
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__register_t mc_esp;
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__register_t mc_ss;
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int mc_len; /* sizeof(mcontext_t) */
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#define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */
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#define _MC_FPFMT_387 0x10001
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#define _MC_FPFMT_XMM 0x10002
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int mc_fpformat;
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#define _MC_FPOWNED_NONE 0x20000 /* FP state not used */
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#define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */
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#define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */
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int mc_ownedfp;
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int mc_spare1[1]; /* align next field to 16 bytes */
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/*
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* See <machine/npx.h> for the internals of mc_fpstate[].
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*/
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int mc_fpstate[128] __aligned(16);
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__register_t mc_fsbase;
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__register_t mc_gsbase;
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int mc_spare2[6];
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} mcontext_t;
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#if defined(_KERNEL) && defined(COMPAT_FREEBSD4)
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struct mcontext4 {
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__register_t mc_onstack; /* XXX - sigcontext compat. */
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__register_t mc_gs; /* machine state (struct trapframe) */
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__register_t mc_fs;
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__register_t mc_es;
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__register_t mc_ds;
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__register_t mc_edi;
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__register_t mc_esi;
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__register_t mc_ebp;
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__register_t mc_isp;
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__register_t mc_ebx;
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__register_t mc_edx;
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__register_t mc_ecx;
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__register_t mc_eax;
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__register_t mc_trapno;
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__register_t mc_err;
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__register_t mc_eip;
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__register_t mc_cs;
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__register_t mc_eflags;
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__register_t mc_esp; /* machine state */
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__register_t mc_ss;
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__register_t mc_fpregs[28]; /* env87 + fpacc87 + u_long */
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__register_t __spare__[17];
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};
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#endif
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#endif /* !_MACHINE_UCONTEXT_H_ */
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