659ed245ed
This pr implements the `only-section` option for a `DXContainer` object in `llvm-objcopy`. It extends the base `removeParts` of the minimal object representation of a `DXContainerObject`. This a pre-requisite step to implement https://github.com/llvm/llvm-project/issues/150286 as a way to strip all other information away.
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
//===- DXContainerObjcopy.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 "llvm/ObjCopy/DXContainer/DXContainerObjcopy.h"
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#include "DXContainerReader.h"
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#include "DXContainerWriter.h"
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#include "llvm/ObjCopy/CommonConfig.h"
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#include "llvm/ObjCopy/DXContainer/DXContainerConfig.h"
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namespace llvm {
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namespace objcopy {
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namespace dxbc {
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using namespace object;
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static Error handleArgs(const CommonConfig &Config, Object &Obj) {
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std::function<bool(const Part &)> RemovePred = [](const Part &) {
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return false;
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};
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if (!Config.ToRemove.empty())
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RemovePred = [&Config](const Part &P) {
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return Config.ToRemove.matches(P.Name);
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};
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if (!Config.OnlySection.empty())
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RemovePred = [&Config](const Part &P) {
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// Explicitly keep these sections regardless of previous removes and
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// remove everything else.
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return !Config.OnlySection.matches(P.Name);
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};
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if (auto E = Obj.removeParts(RemovePred))
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return E;
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Obj.recomputeHeader();
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return Error::success();
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}
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Error executeObjcopyOnBinary(const CommonConfig &Config,
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const DXContainerConfig &,
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DXContainerObjectFile &In, raw_ostream &Out) {
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DXContainerReader Reader(In);
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Expected<std::unique_ptr<Object>> ObjOrErr = Reader.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 DXContainer object");
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if (Error E = handleArgs(Config, *Obj))
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return E;
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DXContainerWriter Writer(*Obj, Out);
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if (Error E = Writer.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 dxbc
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} // end namespace objcopy
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} // end namespace llvm
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