54a335a2f6
This paves the way to doing more things in parallel, and allows us to order type sources in dependency order. PDBs and PCH objects have to be loaded before object files which use them. This is a rebase of the unapplied remaining changes in https://reviews.llvm.org/D59226. I found it very challenging to rebase this across the LLD variable name style change. I recall there was a tool for that, but I didn't take the time to use it. Reviewers: aganea, akhuang Subscribers: llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D79672
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
//===- DebugTypes.h ---------------------------------------------*- C++ -*-===//
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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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#ifndef LLD_COFF_DEBUGTYPES_H
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#define LLD_COFF_DEBUGTYPES_H
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#include "llvm/Support/Error.h"
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#include "llvm/Support/MemoryBuffer.h"
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namespace llvm {
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namespace codeview {
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class PrecompRecord;
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class TypeServer2Record;
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} // namespace codeview
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namespace pdb {
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class NativeSession;
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}
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} // namespace llvm
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namespace lld {
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namespace coff {
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class ObjFile;
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class PDBInputFile;
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struct CVIndexMap;
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class TypeMerger;
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class TpiSource {
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public:
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enum TpiKind { Regular, PCH, UsingPCH, PDB, UsingPDB };
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TpiSource(TpiKind k, ObjFile *f);
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virtual ~TpiSource();
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/// Produce a mapping from the type and item indices used in the object
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/// file to those in the destination PDB.
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///
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/// If the object file uses a type server PDB (compiled with /Zi), merge TPI
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/// and IPI from the type server PDB and return a map for it. Each unique type
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/// server PDB is merged at most once, so this may return an existing index
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/// mapping.
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///
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/// If the object does not use a type server PDB (compiled with /Z7), we merge
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/// all the type and item records from the .debug$S stream and fill in the
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/// caller-provided ObjectIndexMap.
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virtual llvm::Expected<const CVIndexMap *> mergeDebugT(TypeMerger *m,
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CVIndexMap *indexMap);
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/// Is this a dependent file that needs to be processed first, before other
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/// OBJs?
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virtual bool isDependency() const { return false; }
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static void forEachSource(llvm::function_ref<void(TpiSource *)> fn);
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static uint32_t countTypeServerPDBs();
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static uint32_t countPrecompObjs();
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/// Clear global data structures for TpiSources.
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static void clear();
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const TpiKind kind;
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ObjFile *file;
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};
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TpiSource *makeTpiSource(ObjFile *file);
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TpiSource *makeTypeServerSource(PDBInputFile *pdbInputFile);
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TpiSource *makeUseTypeServerSource(ObjFile *file,
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llvm::codeview::TypeServer2Record ts);
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TpiSource *makePrecompSource(ObjFile *file);
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TpiSource *makeUsePrecompSource(ObjFile *file,
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llvm::codeview::PrecompRecord ts);
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} // namespace coff
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} // namespace lld
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#endif
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