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Move Ryzen related fixes to RxFix class.

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XMRig 2021-01-23 00:27:56 +07:00
parent c48e2e6af8
commit b9d813c403
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GPG key ID: 446A53638BE94409
9 changed files with 215 additions and 102 deletions
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src/crypto/rx/RxFix_linux.cpp Normal file
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/* XMRig
* Copyright (c) 2018-2019 tevador <tevador@gmail.com>
* Copyright (c) 2018-2021 SChernykh <https://github.com/SChernykh>
* Copyright (c) 2016-2021 XMRig <https://github.com/xmrig>, <support@xmrig.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "crypto/rx/RxFix.h"
#include "base/io/log/Log.h"
#include <csignal>
#include <cstdlib>
#include <ucontext.h>
namespace xmrig {
static thread_local std::pair<const void*, const void*> mainLoopBounds = { nullptr, nullptr };
static void MainLoopHandler(int sig, siginfo_t *info, void *ucontext)
{
ucontext_t *ucp = (ucontext_t*) ucontext;
LOG_VERBOSE(YELLOW_BOLD("%s at %p"), (sig == SIGSEGV) ? "SIGSEGV" : "SIGILL", ucp->uc_mcontext.gregs[REG_RIP]);
void* p = reinterpret_cast<void*>(ucp->uc_mcontext.gregs[REG_RIP]);
const std::pair<const void*, const void*>& loopBounds = mainLoopBounds;
if ((loopBounds.first <= p) && (p < loopBounds.second)) {
ucp->uc_mcontext.gregs[REG_RIP] = reinterpret_cast<size_t>(loopBounds.second);
}
else {
abort();
}
}
} // namespace xmrig
void xmrig::RxFix::setMainLoopBounds(const std::pair<const void *, const void *> &bounds)
{
mainLoopBounds = bounds;
}
void xmrig::RxFix::setupMainLoopExceptionFrame()
{
struct sigaction act = {};
act.sa_sigaction = MainLoopHandler;
act.sa_flags = SA_RESTART | SA_SIGINFO;
sigaction(SIGSEGV, &act, nullptr);
sigaction(SIGILL, &act, nullptr);
}