forked from OSchip/llvm-project
66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
//===- WasmObjcopy.cpp ----------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "WasmObjcopy.h"
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#include "Buffer.h"
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#include "CopyConfig.h"
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#include "Object.h"
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#include "Reader.h"
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#include "Writer.h"
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#include "llvm-objcopy.h"
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#include "llvm/Support/Errc.h"
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namespace llvm {
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namespace objcopy {
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namespace wasm {
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using namespace object;
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static Error handleArgs(const CopyConfig &Config, Object &Obj) {
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if (!Config.AddGnuDebugLink.empty() || !Config.BuildIdLinkDir.empty() ||
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Config.BuildIdLinkInput || Config.BuildIdLinkOutput ||
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Config.ExtractPartition || !Config.SplitDWO.empty() ||
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!Config.SymbolsPrefix.empty() || !Config.AllocSectionsPrefix.empty() ||
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Config.DiscardMode != DiscardType::None || Config.NewSymbolVisibility ||
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!Config.SymbolsToAdd.empty() || !Config.RPathToAdd.empty() ||
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!Config.OnlySection.empty() || !Config.SymbolsToGlobalize.empty() ||
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!Config.SymbolsToKeep.empty() || !Config.SymbolsToLocalize.empty() ||
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!Config.SymbolsToRemove.empty() ||
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!Config.UnneededSymbolsToRemove.empty() ||
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!Config.SymbolsToWeaken.empty() || !Config.SymbolsToKeepGlobal.empty() ||
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!Config.SectionsToRename.empty() || !Config.SetSectionAlignment.empty() ||
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!Config.SetSectionFlags.empty() || !Config.SymbolsToRename.empty() ||
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!Config.ToRemove.empty() || !Config.DumpSection.empty() ||
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!Config.AddSection.empty()) {
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return createStringError(
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llvm::errc::invalid_argument,
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"no flags are supported yet, only basic copying is allowed");
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}
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return Error::success();
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}
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Error executeObjcopyOnBinary(const CopyConfig &Config,
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object::WasmObjectFile &In, Buffer &Out) {
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Reader TheReader(In);
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Expected<std::unique_ptr<Object>> ObjOrErr = TheReader.create();
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if (!ObjOrErr)
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return createFileError(Config.InputFilename, ObjOrErr.takeError());
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Object *Obj = ObjOrErr->get();
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assert(Obj && "Unable to deserialize Wasm object");
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if (Error E = handleArgs(Config, *Obj))
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return createFileError(Config.InputFilename, std::move(E));
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Writer TheWriter(*Obj, Out);
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if (Error E = TheWriter.write())
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return createFileError(Config.OutputFilename, std::move(E));
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return Error::success();
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}
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} // end namespace wasm
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} // end namespace objcopy
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} // end namespace llvm
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