862c34b31e
# 1.9.0 - Integrated Monero CN-R variant so called CNv4, aka CN-R, aka CNv5, aka Cryptonight-R #233 (algo: "cryptonight", variant: "r") - Integrated Wownero CN-R variant #233 (algo: "cryptonight", variant: "wow") - Integrated Graft variant (algo: "cryptonight", variant: "rwz" OR variant: "graft") - Integrated X-Cash variant #234 (algo: "cryptonight", variant: "double" OR variant: "heavyx" OR variant: "xcash") - Integrated Zelerius variant (algo: "cryptonight", variant: "zls" OR variant: "zelerius") - Add miner version column to the Dashboard (version turns red when its outdated) - Fixed crash when remote logging is disabled
104 lines
3.4 KiB
C++
104 lines
3.4 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 2016-2017 XMRig <support@xmrig.com>
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*
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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 <cstdlib>
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#include <sys/mman.h>
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#include "crypto/CryptoNight.h"
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#include "log/Log.h"
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#include "Mem.h"
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void Mem::init(const Options* options)
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{
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m_hashFactor = options->hashFactor();
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m_useHugePages = options->hugePages();
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m_algo = options->algo();
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m_multiHashThreadMask = Mem::ThreadBitSet(static_cast<unsigned long long int>(options->multiHashThreadMask()));
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}
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void Mem::allocate(ScratchPadMem& scratchPadMem, bool useHugePages)
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{
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scratchPadMem.hugePages = 0;
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if (!useHugePages) {
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scratchPadMem.memory = static_cast<uint8_t*>(_mm_malloc(scratchPadMem.size, 4096));
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return;
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}
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# if defined(__APPLE__)
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scratchPadMem.memory = static_cast<uint8_t*>(mmap(0, scratchPadMem.size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, VM_FLAGS_SUPERPAGE_SIZE_2MB, 0));
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# elif defined(__FreeBSD__)
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scratchPadMem.memory = static_cast<uint8_t*>(mmap(0, scratchPadMem.size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_ALIGNED_SUPER | MAP_PREFAULT_READ, -1, 0));
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# else
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scratchPadMem.memory = static_cast<uint8_t*>(mmap(0, scratchPadMem.size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, 0, 0));
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# endif
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if (scratchPadMem.memory == MAP_FAILED) {
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return allocate(scratchPadMem, false);
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}
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scratchPadMem.hugePages = scratchPadMem.pages;
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m_flags |= HugepagesAvailable;
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m_flags |= HugepagesEnabled;
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if (madvise(scratchPadMem.memory, scratchPadMem.size, MADV_RANDOM | MADV_WILLNEED) != 0) {
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LOG_ERR("madvise failed");
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}
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if (mlock(scratchPadMem.memory, scratchPadMem.size) == 0) {
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m_flags |= Lock;
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}
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}
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void Mem::release(ScratchPadMem &scratchPadMem)
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{
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if (scratchPadMem.hugePages) {
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if (m_flags & Lock) {
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munlock(scratchPadMem.memory, scratchPadMem.size);
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}
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munmap(scratchPadMem.memory, scratchPadMem.size);
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}
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else {
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_mm_free(scratchPadMem.memory);
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}
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}
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void *Mem::allocateExecutableMemory(size_t size)
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{
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# if defined(__APPLE__)
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return mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANON, -1, 0);
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# else
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return mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
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# endif
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}
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void Mem::flushInstructionCache(void *p, size_t size)
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{
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# ifndef __FreeBSD__
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__builtin___clear_cache(reinterpret_cast<char*>(p), reinterpret_cast<char*>(p) + size);
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# endif
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}
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