From b50e65437ebad535af29e84156b8b1af71f61c3d Mon Sep 17 00:00:00 2001 From: Dimitry Date: Mon, 21 Mar 2016 11:55:45 +0300 Subject: move libevmasm --- libevmasm/LinkerObject.cpp | 62 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 libevmasm/LinkerObject.cpp (limited to 'libevmasm/LinkerObject.cpp') diff --git a/libevmasm/LinkerObject.cpp b/libevmasm/LinkerObject.cpp new file mode 100644 index 00000000..ceb864a1 --- /dev/null +++ b/libevmasm/LinkerObject.cpp @@ -0,0 +1,62 @@ +/* + This file is part of cpp-ethereum. + + cpp-ethereum 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. + + cpp-ethereum 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 cpp-ethereum. If not, see . +*/ +/** @file LinkerObject.cpp + * @author Christian R + * @date 2015 + */ + +#include +#include + +using namespace dev; +using namespace dev::eth; +using namespace std; + +void LinkerObject::append(LinkerObject const& _other) +{ + for (auto const& ref: _other.linkReferences) + linkReferences[ref.first + bytecode.size()] = ref.second; + bytecode += _other.bytecode; +} + +void LinkerObject::link(map const& _libraryAddresses) +{ + std::map remainingRefs; + for (auto const& linkRef: linkReferences) + { + auto it = _libraryAddresses.find(linkRef.second); + if (it == _libraryAddresses.end()) + remainingRefs.insert(linkRef); + else + it->second.ref().copyTo(ref(bytecode).cropped(linkRef.first, 20)); + } + linkReferences.swap(remainingRefs); +} + +string LinkerObject::toHex() const +{ + string hex = dev::toHex(bytecode); + for (auto const& ref: linkReferences) + { + size_t pos = ref.first * 2; + string const& name = ref.second; + hex[pos] = hex[pos + 1] = hex[pos + 38] = hex[pos + 39] = '_'; + for (size_t i = 0; i < 36; ++i) + hex[pos + 2 + i] = i < name.size() ? name[i] : '_'; + } + return hex; +} -- cgit