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authorDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
committerDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
commit0b57cec536236d46e3dba9bd041533462f33dbb7 (patch)
tree56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp
parent718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff)
Notes
Diffstat (limited to 'contrib/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp')
-rw-r--r--contrib/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp191
1 files changed, 0 insertions, 191 deletions
diff --git a/contrib/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp b/contrib/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp
deleted file mode 100644
index 20b6c6142547..000000000000
--- a/contrib/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp
+++ /dev/null
@@ -1,191 +0,0 @@
-//===- DbiModuleDescriptorBuilder.cpp - PDB Mod Info Creation ---*- C++ -*-===//
-//
-// 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/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h"
-
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/BinaryFormat/COFF.h"
-#include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
-#include "llvm/DebugInfo/MSF/MSFBuilder.h"
-#include "llvm/DebugInfo/MSF/MSFCommon.h"
-#include "llvm/DebugInfo/MSF/MappedBlockStream.h"
-#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
-#include "llvm/DebugInfo/PDB/Native/GSIStreamBuilder.h"
-#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
-#include "llvm/DebugInfo/PDB/Native/RawError.h"
-#include "llvm/Support/BinaryStreamWriter.h"
-
-using namespace llvm;
-using namespace llvm::codeview;
-using namespace llvm::msf;
-using namespace llvm::pdb;
-
-static uint32_t calculateDiSymbolStreamSize(uint32_t SymbolByteSize,
- uint32_t C13Size) {
- uint32_t Size = sizeof(uint32_t); // Signature
- Size += alignTo(SymbolByteSize, 4); // Symbol Data
- Size += 0; // TODO: Layout.C11Bytes
- Size += C13Size; // C13 Debug Info Size
- Size += sizeof(uint32_t); // GlobalRefs substream size (always 0)
- Size += 0; // GlobalRefs substream bytes
- return Size;
-}
-
-DbiModuleDescriptorBuilder::DbiModuleDescriptorBuilder(StringRef ModuleName,
- uint32_t ModIndex,
- msf::MSFBuilder &Msf)
- : MSF(Msf), ModuleName(ModuleName) {
- ::memset(&Layout, 0, sizeof(Layout));
- Layout.Mod = ModIndex;
-}
-
-DbiModuleDescriptorBuilder::~DbiModuleDescriptorBuilder() {}
-
-uint16_t DbiModuleDescriptorBuilder::getStreamIndex() const {
- return Layout.ModDiStream;
-}
-
-void DbiModuleDescriptorBuilder::setObjFileName(StringRef Name) {
- ObjFileName = Name;
-}
-
-void DbiModuleDescriptorBuilder::setPdbFilePathNI(uint32_t NI) {
- PdbFilePathNI = NI;
-}
-
-void DbiModuleDescriptorBuilder::setFirstSectionContrib(
- const SectionContrib &SC) {
- Layout.SC = SC;
-}
-
-void DbiModuleDescriptorBuilder::addSymbol(CVSymbol Symbol) {
- // Defer to the bulk API. It does the same thing.
- addSymbolsInBulk(Symbol.data());
-}
-
-void DbiModuleDescriptorBuilder::addSymbolsInBulk(
- ArrayRef<uint8_t> BulkSymbols) {
- // Do nothing for empty runs of symbols.
- if (BulkSymbols.empty())
- return;
-
- Symbols.push_back(BulkSymbols);
- // Symbols written to a PDB file are required to be 4 byte aligned. The same
- // is not true of object files.
- assert(BulkSymbols.size() % alignOf(CodeViewContainer::Pdb) == 0 &&
- "Invalid Symbol alignment!");
- SymbolByteSize += BulkSymbols.size();
-}
-
-void DbiModuleDescriptorBuilder::addSourceFile(StringRef Path) {
- SourceFiles.push_back(Path);
-}
-
-uint32_t DbiModuleDescriptorBuilder::calculateC13DebugInfoSize() const {
- uint32_t Result = 0;
- for (const auto &Builder : C13Builders) {
- assert(Builder && "Empty C13 Fragment Builder!");
- Result += Builder->calculateSerializedLength();
- }
- return Result;
-}
-
-uint32_t DbiModuleDescriptorBuilder::calculateSerializedLength() const {
- uint32_t L = sizeof(Layout);
- uint32_t M = ModuleName.size() + 1;
- uint32_t O = ObjFileName.size() + 1;
- return alignTo(L + M + O, sizeof(uint32_t));
-}
-
-void DbiModuleDescriptorBuilder::finalize() {
- Layout.FileNameOffs = 0; // TODO: Fix this
- Layout.Flags = 0; // TODO: Fix this
- Layout.C11Bytes = 0;
- Layout.C13Bytes = calculateC13DebugInfoSize();
- (void)Layout.Mod; // Set in constructor
- (void)Layout.ModDiStream; // Set in finalizeMsfLayout
- Layout.NumFiles = SourceFiles.size();
- Layout.PdbFilePathNI = PdbFilePathNI;
- Layout.SrcFileNameNI = 0;
-
- // This value includes both the signature field as well as the record bytes
- // from the symbol stream.
- Layout.SymBytes =
- Layout.ModDiStream == kInvalidStreamIndex ? 0 : getNextSymbolOffset();
-}
-
-Error DbiModuleDescriptorBuilder::finalizeMsfLayout() {
- this->Layout.ModDiStream = kInvalidStreamIndex;
- uint32_t C13Size = calculateC13DebugInfoSize();
- if (!C13Size && !SymbolByteSize)
- return Error::success();
- auto ExpectedSN =
- MSF.addStream(calculateDiSymbolStreamSize(SymbolByteSize, C13Size));
- if (!ExpectedSN)
- return ExpectedSN.takeError();
- Layout.ModDiStream = *ExpectedSN;
- return Error::success();
-}
-
-Error DbiModuleDescriptorBuilder::commit(BinaryStreamWriter &ModiWriter,
- const msf::MSFLayout &MsfLayout,
- WritableBinaryStreamRef MsfBuffer) {
- // We write the Modi record to the `ModiWriter`, but we additionally write its
- // symbol stream to a brand new stream.
- if (auto EC = ModiWriter.writeObject(Layout))
- return EC;
- if (auto EC = ModiWriter.writeCString(ModuleName))
- return EC;
- if (auto EC = ModiWriter.writeCString(ObjFileName))
- return EC;
- if (auto EC = ModiWriter.padToAlignment(sizeof(uint32_t)))
- return EC;
-
- if (Layout.ModDiStream != kInvalidStreamIndex) {
- auto NS = WritableMappedBlockStream::createIndexedStream(
- MsfLayout, MsfBuffer, Layout.ModDiStream, MSF.getAllocator());
- WritableBinaryStreamRef Ref(*NS);
- BinaryStreamWriter SymbolWriter(Ref);
- // Write the symbols.
- if (auto EC =
- SymbolWriter.writeInteger<uint32_t>(COFF::DEBUG_SECTION_MAGIC))
- return EC;
- for (ArrayRef<uint8_t> Syms : Symbols) {
- if (auto EC = SymbolWriter.writeBytes(Syms))
- return EC;
- }
- assert(SymbolWriter.getOffset() % alignOf(CodeViewContainer::Pdb) == 0 &&
- "Invalid debug section alignment!");
- // TODO: Write C11 Line data
- for (const auto &Builder : C13Builders) {
- assert(Builder && "Empty C13 Fragment Builder!");
- if (auto EC = Builder->commit(SymbolWriter))
- return EC;
- }
-
- // TODO: Figure out what GlobalRefs substream actually is and populate it.
- if (auto EC = SymbolWriter.writeInteger<uint32_t>(0))
- return EC;
- if (SymbolWriter.bytesRemaining() > 0)
- return make_error<RawError>(raw_error_code::stream_too_long);
- }
- return Error::success();
-}
-
-void DbiModuleDescriptorBuilder::addDebugSubsection(
- std::shared_ptr<DebugSubsection> Subsection) {
- assert(Subsection);
- C13Builders.push_back(llvm::make_unique<DebugSubsectionRecordBuilder>(
- std::move(Subsection), CodeViewContainer::Pdb));
-}
-
-void DbiModuleDescriptorBuilder::addDebugSubsection(
- const DebugSubsectionRecord &SubsectionContents) {
- C13Builders.push_back(llvm::make_unique<DebugSubsectionRecordBuilder>(
- SubsectionContents, CodeViewContainer::Pdb));
-}