mirror of https://github.com/0intro/libtask
138 lines
5.0 KiB
C
138 lines
5.0 KiB
C
#define setcontext(u) setmcontext(&(u)->uc_mcontext)
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#define getcontext(u) getmcontext(&(u)->uc_mcontext)
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typedef struct mcontext mcontext_t;
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typedef struct ucontext ucontext_t;
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extern int swapcontext(ucontext_t*, const ucontext_t*);
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extern void makecontext(ucontext_t*, void(*)(), int, ...);
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extern int getmcontext(mcontext_t*);
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extern void setmcontext(const mcontext_t*);
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/*-
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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: src/sys/sys/ucontext.h,v 1.4 1999/10/11 20:33:17 luoqi Exp $
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*/
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/* #include <machine/ucontext.h> */
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/*-
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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: src/sys/i386/include/ucontext.h,v 1.4 1999/10/11 20:33:09 luoqi Exp $
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*/
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struct mcontext {
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/*
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* The first 20 fields must match the definition of
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* sigcontext. So that we can support sigcontext
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* and ucontext_t at the same time.
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*/
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long mc_onstack; /* XXX - sigcontext compat. */
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long mc_rdi; /* machine state (struct trapframe) */
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long mc_rsi;
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long mc_rdx;
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long mc_rcx;
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long mc_r8;
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long mc_r9;
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long mc_rax;
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long mc_rbx;
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long mc_rbp;
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long mc_r10;
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long mc_r11;
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long mc_r12;
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long mc_r13;
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long mc_r14;
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long mc_r15;
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long mc_trapno;
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long mc_addr;
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long mc_flags;
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long mc_err;
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long mc_rip;
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long mc_cs;
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long mc_rflags;
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long mc_rsp;
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long mc_ss;
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long 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_XMM 0x10002
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long 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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long mc_ownedfp;
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/*
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* See <machine/fpu.h> for the internals of mc_fpstate[].
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*/
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long mc_fpstate[64];
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long mc_spare[8];
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};
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struct ucontext {
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/*
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* Keep the order of the first two fields. Also,
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* keep them the first two fields in the structure.
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* This way we can have a union with struct
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* sigcontext and ucontext_t. This allows us to
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* support them both at the same time.
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* note: the union is not defined, though.
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*/
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sigset_t uc_sigmask;
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mcontext_t uc_mcontext;
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struct __ucontext *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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