36f351098c
This patch creates skeleton implementation for the DWARFLinkerParallel. It also integrates DWARFLinkerParallel into dsymutil and llvm-dwarfutil, so that empty DWARFLinker::link() can be called. To do this new command line option is added "--linker apple/llvm". Additionally it changes existing DWARFLinker interfaces/implementations to be compatible: use Error for error reporting for the DWARFStreamer, make DWARFFile to owner of referenced resources, other small refactorings. Differential Revision: https://reviews.llvm.org/D147952
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
//=== DWARFLinkerImpl.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 "DWARFLinkerImpl.h"
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namespace llvm {
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namespace dwarflinker_parallel {
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/// Similar to DWARFUnitSection::getUnitForOffset(), but returning our
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/// CompileUnit object instead.
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CompileUnit *
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DWARFLinkerImpl::LinkContext::getUnitForOffset(CompileUnit &CurrentCU,
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uint64_t Offset) const {
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if (CurrentCU.isClangModule())
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return &CurrentCU;
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auto CU = llvm::upper_bound(
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CompileUnits, Offset,
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[](uint64_t LHS, const std::unique_ptr<CompileUnit> &RHS) {
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return LHS < RHS->getOrigUnit().getNextUnitOffset();
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});
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return CU != CompileUnits.end() ? CU->get() : nullptr;
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}
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Error DWARFLinkerImpl::createEmitter(const Triple &TheTriple,
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OutputFileType FileType,
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raw_pwrite_stream &OutFile) {
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TheDwarfEmitter = std::make_unique<DwarfEmitterImpl>(
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FileType, OutFile, OutputStrings.getTranslator(), WarningHandler);
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return TheDwarfEmitter->init(TheTriple, "__DWARF");
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}
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ExtraDwarfEmitter *DWARFLinkerImpl::getEmitter() {
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return TheDwarfEmitter.get();
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}
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} // end of namespace dwarflinker_parallel
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} // namespace llvm
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