From 0b57cec536236d46e3dba9bd041533462f33dbb7 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Fri, 20 Dec 2019 19:53:05 +0000
Subject: Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.
---
 .../DebugInfo/Symbolize/SymbolizableObjectFile.h   | 95 ++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 contrib/llvm-project/llvm/lib/DebugInfo/Symbolize/SymbolizableObjectFile.h

(limited to 'contrib/llvm-project/llvm/lib/DebugInfo/Symbolize/SymbolizableObjectFile.h')

diff --git a/contrib/llvm-project/llvm/lib/DebugInfo/Symbolize/SymbolizableObjectFile.h b/contrib/llvm-project/llvm/lib/DebugInfo/Symbolize/SymbolizableObjectFile.h
new file mode 100644
index 000000000000..9cab94178c1b
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/DebugInfo/Symbolize/SymbolizableObjectFile.h
@@ -0,0 +1,95 @@
+//===- 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/ErrorOr.h"
+#include <cstdint>
+#include <map>
+#include <memory>
+#include <string>
+#include <system_error>
+
+namespace llvm {
+
+class DataExtractor;
+
+namespace symbolize {
+
+class SymbolizableObjectFile : public SymbolizableModule {
+public:
+  static ErrorOr<std::unique_ptr<SymbolizableObjectFile>>
+  create(const object::ObjectFile *Obj, std::unique_ptr<DIContext> DICtx);
+
+  DILineInfo symbolizeCode(object::SectionedAddress ModuleOffset,
+                           FunctionNameKind FNKind,
+                           bool UseSymbolTable) const override;
+  DIInliningInfo symbolizeInlinedCode(object::SectionedAddress ModuleOffset,
+                                      FunctionNameKind FNKind,
+                                      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.
+  std::error_code addSymbol(const object::SymbolRef &Symbol,
+                            uint64_t SymbolSize,
+                            DataExtractor *OpdExtractor = nullptr,
+                            uint64_t OpdAddress = 0);
+  std::error_code 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;
+
+  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);
+};
+
+} // end namespace symbolize
+
+} // end namespace llvm
+
+#endif // LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H
-- 
cgit v1.2.3