intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 97 insertions, 0 deletions

diff --git a/contrib/libs/llvm12/lib/DebugInfo/Symbolize/SymbolizableObjectFile.h b/contrib/libs/llvm12/lib/DebugInfo/Symbolize/SymbolizableObjectFile.h
new file mode 100644
index 00000000000..be3c66df056
--- /dev/null
+++ b/contrib/libs/llvm12/lib/DebugInfo/Symbolize/SymbolizableObjectFile.h
@@ -0,0 +1,97 @@
+//===- SymbolizableObjectFile.h ---------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the SymbolizableObjectFile class.
+//
+//===----------------------------------------------------------------------===//
+#ifndef LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H
+#define LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/DebugInfo/DIContext.h"
+#include "llvm/DebugInfo/Symbolize/SymbolizableModule.h"
+#include "llvm/Support/Error.h"
+#include <cstdint>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+namespace llvm {
+
+class DataExtractor;
+
+namespace symbolize {
+
+class SymbolizableObjectFile : public SymbolizableModule {
+public:
+  static Expected<std::unique_ptr<SymbolizableObjectFile>>
+  create(const object::ObjectFile *Obj, std::unique_ptr<DIContext> DICtx,
+         bool UntagAddresses);
+
+  DILineInfo symbolizeCode(object::SectionedAddress ModuleOffset,
+                           DILineInfoSpecifier LineInfoSpecifier,
+                           bool UseSymbolTable) const override;
+  DIInliningInfo symbolizeInlinedCode(object::SectionedAddress ModuleOffset,
+                                      DILineInfoSpecifier LineInfoSpecifier,
+                                      bool UseSymbolTable) const override;
+  DIGlobal symbolizeData(object::SectionedAddress ModuleOffset) const override;
+  std::vector<DILocal>
+  symbolizeFrame(object::SectionedAddress ModuleOffset) const override;
+
+  // Return true if this is a 32-bit x86 PE COFF module.
+  bool isWin32Module() const override;
+
+  // Returns the preferred base of the module, i.e. where the loader would place
+  // it in memory assuming there were no conflicts.
+  uint64_t getModulePreferredBase() const override;
+
+private:
+  bool shouldOverrideWithSymbolTable(FunctionNameKind FNKind,
+                                     bool UseSymbolTable) const;
+
+  bool getNameFromSymbolTable(object::SymbolRef::Type Type, uint64_t Address,
+                              std::string &Name, uint64_t &Addr,
+                              uint64_t &Size) const;
+  // For big-endian PowerPC64 ELF, OpdAddress is the address of the .opd
+  // (function descriptor) section and OpdExtractor refers to its contents.
+  Error addSymbol(const object::SymbolRef &Symbol, uint64_t SymbolSize,
+                  DataExtractor *OpdExtractor = nullptr,
+                  uint64_t OpdAddress = 0);
+  Error addCoffExportSymbols(const object::COFFObjectFile *CoffObj);
+
+  /// Search for the first occurence of specified Address in ObjectFile.
+  uint64_t getModuleSectionIndexForAddress(uint64_t Address) const;
+
+  const object::ObjectFile *Module;
+  std::unique_ptr<DIContext> DebugInfoContext;
+  bool UntagAddresses;
+
+  struct SymbolDesc {
+    uint64_t Addr;
+    // If size is 0, assume that symbol occupies the whole memory range up to
+    // the following symbol.
+    uint64_t Size;
+
+    bool operator<(const SymbolDesc &RHS) const {
+      return Addr != RHS.Addr ? Addr < RHS.Addr : Size < RHS.Size;
+    }
+  };
+  std::vector<std::pair<SymbolDesc, StringRef>> Functions;
+  std::vector<std::pair<SymbolDesc, StringRef>> Objects;
+
+  SymbolizableObjectFile(const object::ObjectFile *Obj,
+                         std::unique_ptr<DIContext> DICtx,
+                         bool UntagAddresses);
+};
+
+} // end namespace symbolize
+
+} // end namespace llvm
+
+#endif // LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H