1 //===- ModuleSymbolTable.h - symbol table for in-memory IR ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
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).
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_OBJECT_MODULESYMBOLTABLE_H
17 #define LLVM_OBJECT_MODULESYMBOLTABLE_H
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"
33 class ModuleSymbolTable {
35 using AsmSymbol = std::pair<std::string, uint32_t>;
36 using Symbol = PointerUnion<GlobalValue *, AsmSymbol *>;
39 Module *FirstMod = nullptr;
41 SpecificBumpPtrAllocator<AsmSymbol> AsmSymbols;
42 std::vector<Symbol> SymTab;
46 ArrayRef<Symbol> symbols() const { return SymTab; }
47 void addModule(Module *M);
49 void printSymbolName(raw_ostream &OS, Symbol S) const;
50 uint32_t getSymbolFlags(Symbol S) const;
52 /// Parse inline ASM and collect the symbols that are defined or referenced in
53 /// the current module.
55 /// For each found symbol, call \p AsmSymbol with the name of the symbol found
56 /// and the associated flags.
57 static void CollectAsmSymbols(
59 function_ref<void(StringRef, object::BasicSymbolRef::Flags)> AsmSymbol);
61 /// Parse inline ASM and collect the symvers directives that are defined in
62 /// the current module.
64 /// For each found symbol, call \p AsmSymver with the name of the symbol and
67 CollectAsmSymvers(const Module &M,
68 function_ref<void(StringRef, StringRef)> AsmSymver);
71 } // end namespace llvm
73 #endif // LLVM_OBJECT_MODULESYMBOLTABLE_H