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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| // Copyright (c) 2012-2016, The CryptoNote developers, The Bytecoin developers | ||
| // Copyright (c) 2022-2024, The Talleo developers | ||
| // | ||
| // This file is part of Karbo. | ||
| // | ||
| // Karbo is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Lesser General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // Karbo 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 Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public License | ||
| // along with Karbo. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| #include <string.h> | ||
| #include <sys/types.h> | ||
| #include "Context.h" | ||
|
|
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| void | ||
| makecontext(uctx *ucp, void (*func)(void), intptr_t arg) | ||
| { | ||
| long *sp; | ||
|
|
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| memset(&ucp->uc_mcontext, 0, sizeof ucp->uc_mcontext); | ||
| ucp->uc_mcontext.mc_rdi = (long)arg; | ||
| sp = (long*)ucp->uc_stack.ss_sp+ucp->uc_stack.ss_size/sizeof(long); | ||
| sp -= 1; | ||
| sp = (void*)((uintptr_t)sp - (uintptr_t)sp%16); /* 16-align for OS X */ | ||
| *--sp = 0; /* return address */ | ||
| ucp->uc_mcontext.mc_rip = (long)func; | ||
| ucp->uc_mcontext.mc_rsp = (long)sp; | ||
| } | ||
|
|
||
| int | ||
| swapcontext(uctx *oucp, const uctx *ucp) | ||
| { | ||
| if(getcontext(oucp) == 0) | ||
| setcontext(ucp); | ||
| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| // Copyright (c) 2012-2016, The CryptoNote developers, The Bytecoin developers | ||
| // | ||
| // This file is part of Karbo. | ||
| // | ||
| // Karbo is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Lesser General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // Karbo 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 Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public License | ||
| // along with Karbo. 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) | ||
| #define getcontext(u) _getmcontext(&(u)->uc_mcontext) | ||
|
|
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| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
| #include <signal.h> | ||
| #include <stdlib.h> | ||
|
|
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| typedef struct mcontext mctx; | ||
| typedef struct ucontext uctx; | ||
|
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| extern int swapcontext(uctx*, const uctx*); | ||
| extern void makecontext(uctx*, void(*)(void), intptr_t); | ||
| extern int _getmcontext(mctx*); | ||
| extern void _setmcontext(const mctx*); | ||
|
|
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| struct mcontext { | ||
| /* | ||
| * The first 20 fields must match the definition of | ||
| * sigcontext. So that we can support sigcontext | ||
| * and ucontext_t at the same time. | ||
| */ | ||
| long mc_onstack; /* XXX - sigcontext compat. */ | ||
| long mc_rdi; /* machine state (struct trapframe) */ | ||
| long mc_rsi; | ||
| long mc_rdx; | ||
| long mc_rcx; | ||
| long mc_r8; | ||
| long mc_r9; | ||
| long mc_rax; | ||
| long mc_rbx; | ||
| long mc_rbp; | ||
| long mc_r10; | ||
| long mc_r11; | ||
| long mc_r12; | ||
| long mc_r13; | ||
| long mc_r14; | ||
| long mc_r15; | ||
| long mc_trapno; | ||
| long mc_addr; | ||
| long mc_flags; | ||
| long mc_err; | ||
| long mc_rip; | ||
| long mc_cs; | ||
| long mc_rflags; | ||
| long mc_rsp; | ||
| long mc_ss; | ||
|
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| long mc_len; /* sizeof(mcontext_t) */ | ||
| #define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */ | ||
| #define _MC_FPFMT_XMM 0x10002 | ||
| long mc_fpformat; | ||
| #define _MC_FPOWNED_NONE 0x20000 /* FP state not used */ | ||
| #define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */ | ||
| #define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */ | ||
| long mc_ownedfp; | ||
| /* | ||
| * See <machine/fpu.h> for the internals of mc_fpstate[]. | ||
| */ | ||
| long mc_fpstate[64]; | ||
| long mc_spare[8]; | ||
| }; | ||
|
|
||
| struct ucontext { | ||
| /* | ||
| * Keep the order of the first two fields. Also, | ||
| * keep them the first two fields in the structure. | ||
| * This way we can have a union with struct | ||
| * sigcontext and ucontext_t. This allows us to | ||
| * support them both at the same time. | ||
| * note: the union is not defined, though. | ||
| */ | ||
| sigset_t uc_sigmask; | ||
| mctx uc_mcontext; | ||
|
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| struct __ucontext *uc_link; | ||
| stack_t uc_stack; | ||
| int __spare__[8]; | ||
| }; | ||
|
|
||
| #ifdef __cplusplus | ||
| } | ||
| #endif |
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