LCOV - code coverage report
Current view: top level - include/llvm/Object - ModuleSymbolTable.h (source / functions) Hit Total Coverage
Test: llvm-toolchain.info Lines: 1 1 100.0 %
Date: 2018-07-13 00:08:38 Functions: 2 2 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : //===- ModuleSymbolTable.h - symbol table for in-memory IR ------*- C++ -*-===//
       2             : //
       3             : //                     The LLVM Compiler Infrastructure
       4             : //
       5             : // This file is distributed under the University of Illinois Open Source
       6             : // License. See LICENSE.TXT for details.
       7             : //
       8             : //===----------------------------------------------------------------------===//
       9             : //
      10             : // This class represents a symbol table built from in-memory IR. It provides
      11             : // access to GlobalValues and should only be used if such access is required
      12             : // (e.g. in the LTO implementation).
      13             : //
      14             : //===----------------------------------------------------------------------===//
      15             : 
      16             : #ifndef LLVM_OBJECT_MODULESYMBOLTABLE_H
      17             : #define LLVM_OBJECT_MODULESYMBOLTABLE_H
      18             : 
      19             : #include "llvm/ADT/ArrayRef.h"
      20             : #include "llvm/ADT/PointerUnion.h"
      21             : #include "llvm/IR/Mangler.h"
      22             : #include "llvm/Object/SymbolicFile.h"
      23             : #include "llvm/Support/Allocator.h"
      24             : #include <cstdint>
      25             : #include <string>
      26             : #include <utility>
      27             : #include <vector>
      28             : 
      29             : namespace llvm {
      30             : 
      31             : class GlobalValue;
      32             : 
      33       14107 : class ModuleSymbolTable {
      34             : public:
      35             :   using AsmSymbol = std::pair<std::string, uint32_t>;
      36             :   using Symbol = PointerUnion<GlobalValue *, AsmSymbol *>;
      37             : 
      38             : private:
      39             :   Module *FirstMod = nullptr;
      40             : 
      41             :   SpecificBumpPtrAllocator<AsmSymbol> AsmSymbols;
      42             :   std::vector<Symbol> SymTab;
      43             :   Mangler Mang;
      44             : 
      45             : public:
      46             :   ArrayRef<Symbol> symbols() const { return SymTab; }
      47             :   void addModule(Module *M);
      48             : 
      49             :   void printSymbolName(raw_ostream &OS, Symbol S) const;
      50             :   uint32_t getSymbolFlags(Symbol S) const;
      51             : 
      52             :   /// Parse inline ASM and collect the symbols that are defined or referenced in
      53             :   /// the current module.
      54             :   ///
      55             :   /// For each found symbol, call \p AsmSymbol with the name of the symbol found
      56             :   /// and the associated flags.
      57             :   static void CollectAsmSymbols(
      58             :       const Module &M,
      59             :       function_ref<void(StringRef, object::BasicSymbolRef::Flags)> AsmSymbol);
      60             : 
      61             :   /// Parse inline ASM and collect the symvers directives that are defined in
      62             :   /// the current module.
      63             :   ///
      64             :   /// For each found symbol, call \p AsmSymver with the name of the symbol and
      65             :   /// its alias.
      66             :   static void
      67             :   CollectAsmSymvers(const Module &M,
      68             :                     function_ref<void(StringRef, StringRef)> AsmSymver);
      69             : };
      70             : 
      71             : } // end namespace llvm
      72             : 
      73             : #endif // LLVM_OBJECT_MODULESYMBOLTABLE_H

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