mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
/*
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This file is part of solidity.
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solidity 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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solidity 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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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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// SPDX-License-Identifier: GPL-3.0
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#include <libsmtutil/Z3Loader.h>
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#include <libsmtutil/Exceptions.h>
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#include <z3.h>
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#include <z3_version.h>
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#include <vector>
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <dlfcn.h>
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using namespace std;
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using namespace solidity;
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using namespace solidity::smtutil;
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Z3Loader const& Z3Loader::get()
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{
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static Z3Loader z3;
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return z3;
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}
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void* Z3Loader::loadSymbol(char const* _name) const
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{
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smtAssert(m_handle, "Attempted to use dynamically loaded Z3, even though it is not available.");
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void* sym = dlsym(m_handle, _name);
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smtAssert(sym, string("Symbol \"") + _name + "\" not found in libz3.so");
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return sym;
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}
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bool Z3Loader::available() const
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{
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if (m_handle == nullptr)
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return false;
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unsigned major = 0;
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unsigned minor = 0;
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unsigned build = 0;
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unsigned rev = 0;
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Z3_get_version(&major, &minor, &build, &rev);
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return major == Z3_MAJOR_VERSION && minor == Z3_MINOR_VERSION;
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}
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Z3Loader::Z3Loader()
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{
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string libname{"libz3.so." + to_string(Z3_MAJOR_VERSION) + "." + to_string(Z3_MINOR_VERSION)};
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m_handle = dlmopen(LM_ID_NEWLM, libname.c_str(), RTLD_NOW);
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}
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Z3Loader::~Z3Loader()
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{
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if (m_handle)
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dlclose(m_handle);
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}
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