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author | chriseth <c@ethdev.com> | 2015-09-10 18:02:18 +0800 |
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committer | chriseth <c@ethdev.com> | 2015-09-11 01:31:15 +0800 |
commit | 129b4142d81d91138efe4a47392a87702e066441 (patch) | |
tree | af3d818571557ded88d71ee328fc5ebc2369c5b1 /LinkerObject.h | |
parent | 3ca3fb492d2f710f45d690db85089036bfc77b68 (diff) | |
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Transition from bytecode to more general linker objects.
Diffstat (limited to 'LinkerObject.h')
-rw-r--r-- | LinkerObject.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/LinkerObject.h b/LinkerObject.h new file mode 100644 index 00000000..83d2bd7e --- /dev/null +++ b/LinkerObject.h @@ -0,0 +1,55 @@ +/* + 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 <http://www.gnu.org/licenses/>. +*/ +/** @file Assembly.h + * @author Gav Wood <i@gavwood.com> + * @date 2014 + */ + +#pragma once + +#include <libdevcore/Common.h> +#include <libdevcore/FixedHash.h> + +namespace dev +{ +namespace eth +{ + +/** + * Binary object that potentially still needs to be linked (i.e. addresses of other contracts + * need to be filled in). + */ +struct LinkerObject +{ + bytes bytecode; + /// Map from offsets in bytecode to library identifiers. The addresses starting at those offsets + /// need to be replaced by the actual addresses by the linker. + std::map<size_t, std::string> linkReferences; + + /// Appends the bytecode of @a _other and incorporates its link references. + void append(LinkerObject const& _other); + + /// Links the given libraries by replacing their uses in the code and removes them from the references. + void link(std::map<std::string, h160> const& _libraryAddresses); + + /// @returns a hex representation of the bytecode of the given object, replacing unlinked + /// addresses by placeholders. + std::string toHex() const; +}; + +} +} |