llvm-project/llvm/lib/ObjCopy/DXContainer/DXContainerObjcopy.cpp
Finn Plummer 87a1d42bed
[DirectX] Add support for remove-section of DXContainer for llvm-objcopy (#153246)
This pr implements the `remove-section` option for a `DXContainer`
object in `llvm-objcopy`.

It implements a base `removeParts` to the minimal `object`
representation of a `DXContainerObject`.

This is the second step to implement
https://github.com/llvm/llvm-project/issues/150275 as a compiler actions
that invokes llvm-objcopy for functionality.
2025-08-21 10:30:54 -07:00

60 lines
1.8 KiB
C++

//===- DXContainerObjcopy.cpp ---------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ObjCopy/DXContainer/DXContainerObjcopy.h"
#include "DXContainerReader.h"
#include "DXContainerWriter.h"
#include "llvm/ObjCopy/CommonConfig.h"
#include "llvm/ObjCopy/DXContainer/DXContainerConfig.h"
namespace llvm {
namespace objcopy {
namespace dxbc {
using namespace object;
static Error handleArgs(const CommonConfig &Config, Object &Obj) {
std::function<bool(const Part &)> RemovePred = [](const Part &) {
return false;
};
if (!Config.ToRemove.empty())
RemovePred = [&Config](const Part &P) {
return Config.ToRemove.matches(P.Name);
};
if (auto E = Obj.removeParts(RemovePred))
return E;
Obj.recomputeHeader();
return Error::success();
}
Error executeObjcopyOnBinary(const CommonConfig &Config,
const DXContainerConfig &,
DXContainerObjectFile &In, raw_ostream &Out) {
DXContainerReader Reader(In);
Expected<std::unique_ptr<Object>> ObjOrErr = Reader.create();
if (!ObjOrErr)
return createFileError(Config.InputFilename, ObjOrErr.takeError());
Object *Obj = ObjOrErr->get();
assert(Obj && "Unable to deserialize DXContainer object");
if (Error E = handleArgs(Config, *Obj))
return E;
DXContainerWriter Writer(*Obj, Out);
if (Error E = Writer.write())
return createFileError(Config.OutputFilename, std::move(E));
return Error::success();
}
} // end namespace dxbc
} // end namespace objcopy
} // end namespace llvm