72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/* XMRig
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* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
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* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
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* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
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* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
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* Copyright 2017-2018 XMR-Stak <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
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* Copyright 2018-2019 SChernykh <https://github.com/SChernykh>
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* Copyright 2016-2019 XMRig <https://github.com/xmrig>, <support@xmrig.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU 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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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include "persistent_memory.h"
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#include "options.h"
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static size_t offset = 0;
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void * persistent_calloc(size_t num, size_t size) {
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size += size % 16;
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void *mem = &persistent_memory[offset];
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offset += (num * size);
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memset(mem, 0, num * size);
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return mem;
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}
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void init_cn_r(struct cryptonight_ctx *ctx)
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{
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uint8_t *p = allocate_executable_memory(0x4000);
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ctx->generated_code = (cn_mainloop_fun_ms_abi) p;
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ctx->generated_code_double = (cn_mainloop_double_fun_ms_abi)(p + 0x2000);
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ctx->generated_code_height = ctx->generated_code_double_height = (uint64_t)(-1);
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ctx->height = 0;
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}
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void create_cryptonight_ctx(struct cryptonight_ctx **ctx, int thr_id)
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{
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const int ratio = (opt_double_hash && opt_algo == ALGO_CRYPTONIGHT) ? 2 : 1;
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ctx[0] = persistent_calloc(1, sizeof(struct cryptonight_ctx));
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ctx[0]->memory = &persistent_memory[MEMORY * (thr_id * ratio + 1)];
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init_cn_r(ctx[0]);
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if (opt_double_hash) {
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ctx[1] = persistent_calloc(1, sizeof(struct cryptonight_ctx));
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ctx[1]->memory = ctx[0]->memory + (opt_algo == ALGO_CRYPTONIGHT ? MEMORY : MEMORY_LITE);
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init_cn_r(ctx[1]);
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}
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}
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