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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
//===- ModuleSymbolTable.h - symbol table for in-memory IR ------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This class represents a symbol table built from in-memory IR. It provides
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// access to GlobalValues and should only be used if such access is required
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// (e.g. in the LTO implementation).
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_OBJECT_MODULESYMBOLTABLE_H
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#define LLVM_OBJECT_MODULESYMBOLTABLE_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/PointerUnion.h"
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#include "llvm/IR/Mangler.h"
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#include "llvm/Object/SymbolicFile.h"
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#include "llvm/Support/Allocator.h"
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#include <cstdint>
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#include <string>
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#include <utility>
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#include <vector>
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namespace llvm {
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class GlobalValue;
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class ModuleSymbolTable {
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public:
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using AsmSymbol = std::pair<std::string, uint32_t>;
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using Symbol = PointerUnion<GlobalValue *, AsmSymbol *>;
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private:
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Module *FirstMod = nullptr;
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SpecificBumpPtrAllocator<AsmSymbol> AsmSymbols;
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std::vector<Symbol> SymTab;
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Mangler Mang;
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public:
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ArrayRef<Symbol> symbols() const { return SymTab; }
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void addModule(Module *M);
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void printSymbolName(raw_ostream &OS, Symbol S) const;
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uint32_t getSymbolFlags(Symbol S) const;
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/// Parse inline ASM and collect the symbols that are defined or referenced in
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/// the current module.
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///
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/// For each found symbol, call \p AsmSymbol with the name of the symbol found
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/// and the associated flags.
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static void CollectAsmSymbols(
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const Module &M,
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function_ref<void(StringRef, object::BasicSymbolRef::Flags)> AsmSymbol);
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/// Parse inline ASM and collect the symvers directives that are defined in
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/// the current module.
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///
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/// For each found symbol, call \p AsmSymver with the name of the symbol and
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/// its alias.
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static void
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CollectAsmSymvers(const Module &M,
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function_ref<void(StringRef, StringRef)> AsmSymver);
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};
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} // end namespace llvm
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#endif // LLVM_OBJECT_MODULESYMBOLTABLE_H
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