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//===- ModuleSymbolTable.h - symbol table for in-memory IR ------*- 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 class represents a symbol table built from in-memory IR. It provides
// access to GlobalValues and should only be used if such access is required
// (e.g. in the LTO implementation).
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_OBJECT_MODULESYMBOLTABLE_H
#define LLVM_OBJECT_MODULESYMBOLTABLE_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/IR/Mangler.h"
#include "llvm/Object/SymbolicFile.h"
#include "llvm/Support/Allocator.h"
#include <cstdint>
#include <string>
#include <utility>
#include <vector>
namespace llvm {
class GlobalValue;
class Module;
class ModuleSymbolTable {
public:
using AsmSymbol = std::pair<std::string, uint32_t>;
using Symbol = PointerUnion<GlobalValue *, AsmSymbol *>;
private:
Module *FirstMod = nullptr;
SpecificBumpPtrAllocator<AsmSymbol> AsmSymbols;
std::vector<Symbol> SymTab;
Mangler Mang;
public:
ArrayRef<Symbol> symbols() const { return SymTab; }
void addModule(Module *M);
void printSymbolName(raw_ostream &OS, Symbol S) const;
uint32_t getSymbolFlags(Symbol S) const;
/// Parse inline ASM and collect the symbols that are defined or referenced in
/// the current module.
///
/// For each found symbol, call \p AsmSymbol with the name of the symbol found
/// and the associated flags.
static void CollectAsmSymbols(
const Module &M,
function_ref<void(StringRef, object::BasicSymbolRef::Flags)> AsmSymbol);
/// Parse inline ASM and collect the symvers directives that are defined in
/// the current module.
///
/// For each found symbol, call \p AsmSymver with the name of the symbol and
/// its alias.
static void
CollectAsmSymvers(const Module &M,
function_ref<void(StringRef, StringRef)> AsmSymver);
};
} // end namespace llvm
#endif // LLVM_OBJECT_MODULESYMBOLTABLE_H
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