103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
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// Copyright (c) 2012-2015, The CryptoNote developers, The Bytecoin developers
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//
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// This file is part of Bytecoin.
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//
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// Bytecoin is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Bytecoin is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with Bytecoin. If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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#define setcontext(u) setmcontext(&(u)->uc_mcontext)
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#define getcontext(u) getmcontext(&(u)->uc_mcontext)
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdlib.h>
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typedef struct mcontext mctx;
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typedef struct ucontext uctx;
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extern int swapcontext(uctx*, const uctx*);
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extern void makecontext(uctx*, void(*)(), intptr_t);
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extern int getmcontext(mctx*);
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extern void setmcontext(const mctx*);
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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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mctx 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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#ifdef __cplusplus
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}
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#endif
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