Teach `llvm-pdbutil pretty -native` about `-injected-sources`
`pretty -native -injected-sources -injected-source-content` works with
this patch, and produces identical output to the dia version.
Differential Revision: https://reviews.llvm.org/D64428
llvm-svn: 366236
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeEnumInjectedSources.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeEnumInjectedSources.cpp
new file mode 100644
index 0000000..7c7901b
--- /dev/null
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeEnumInjectedSources.cpp
@@ -0,0 +1,121 @@
+//==- NativeEnumInjectedSources.cpp - Native Injected Source Enumerator --*-==//
+//
+// 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/NativeEnumInjectedSources.h"
+
+#include "llvm/DebugInfo/PDB/Native/InfoStream.h"
+#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
+#include "llvm/DebugInfo/PDB/Native/PDBStringTable.h"
+
+namespace llvm {
+namespace pdb {
+
+namespace {
+
+Expected<std::string> readStreamData(BinaryStream &Stream) {
+ uint32_t Offset = 0, DataLength = Stream.getLength();
+ std::string Result;
+ Result.reserve(DataLength);
+ while (Offset < DataLength) {
+ ArrayRef<uint8_t> Data;
+ if (auto E = Stream.readLongestContiguousChunk(Offset, Data))
+ return std::move(E);
+ Offset += Data.size();
+ Result += toStringRef(Data);
+ }
+ return Result;
+}
+
+class NativeInjectedSource final : public IPDBInjectedSource {
+ const SrcHeaderBlockEntry &Entry;
+ const PDBStringTable &Strings;
+ PDBFile &File;
+
+public:
+ NativeInjectedSource(const SrcHeaderBlockEntry &Entry,
+ PDBFile &File, const PDBStringTable &Strings)
+ : Entry(Entry), Strings(Strings), File(File) {}
+
+ uint32_t getCrc32() const override { return Entry.CRC; }
+ uint64_t getCodeByteSize() const override { return Entry.FileSize; }
+
+ std::string getFileName() const override {
+ auto Name = Strings.getStringForID(Entry.FileNI);
+ assert(Name && "InjectedSourceStream should have rejected this");
+ return *Name;
+ }
+
+ std::string getObjectFileName() const override {
+ auto ObjName = Strings.getStringForID(Entry.ObjNI);
+ assert(ObjName && "InjectedSourceStream should have rejected this");
+ return *ObjName;
+ }
+
+ std::string getVirtualFileName() const override {
+ auto VName = Strings.getStringForID(Entry.VFileNI);
+ assert(VName && "InjectedSourceStream should have rejected this");
+ return *VName;
+ }
+
+ PDB_SourceCompression getCompression() const override {
+ return static_cast<PDB_SourceCompression>(Entry.Compression);
+ }
+
+ std::string getCode() const override {
+ // Get name of stream storing the data.
+ auto VName = Strings.getStringForID(Entry.VFileNI);
+ assert(VName && "InjectedSourceStream should have rejected this");
+ std::string StreamName = ("/src/files/" + *VName).str();
+
+ // Find stream with that name and read its data.
+ // FIXME: Consider validating (or even loading) all this in
+ // InjectedSourceStream so that no error can happen here.
+ auto ExpectedFileStream = File.safelyCreateNamedStream(StreamName);
+ if (!ExpectedFileStream) {
+ consumeError(ExpectedFileStream.takeError());
+ return "(failed to open data stream)";
+ }
+
+ auto Data = readStreamData(**ExpectedFileStream);
+ if (!Data) {
+ consumeError(Data.takeError());
+ return "(failed to read data)";
+ }
+ return *Data;
+ }
+};
+
+} // namespace
+
+NativeEnumInjectedSources::NativeEnumInjectedSources(
+ PDBFile &File, const InjectedSourceStream &IJS,
+ const PDBStringTable &Strings)
+ : File(File), Stream(IJS), Strings(Strings), Cur(Stream.begin()) {}
+
+uint32_t NativeEnumInjectedSources::getChildCount() const {
+ return static_cast<uint32_t>(Stream.size());
+}
+
+std::unique_ptr<IPDBInjectedSource>
+NativeEnumInjectedSources::getChildAtIndex(uint32_t N) const {
+ if (N >= getChildCount())
+ return nullptr;
+ return make_unique<NativeInjectedSource>(std::next(Stream.begin(), N)->second,
+ File, Strings);
+}
+
+std::unique_ptr<IPDBInjectedSource> NativeEnumInjectedSources::getNext() {
+ if (Cur == Stream.end())
+ return nullptr;
+ return make_unique<NativeInjectedSource>((Cur++)->second, File, Strings);
+}
+
+void NativeEnumInjectedSources::reset() { Cur = Stream.begin(); }
+
+}
+}