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`llvm.used` contains a list of pointers to named values which the compiler, assembler, and linker are required to treat as if there is a reference that they cannot see. Ensure that the symbols are preserved by adding an explicit `-include` reference to the linker command. llvm-svn: 323017
59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
//===-- llvm/IR/Mangler.h - Self-contained name mangler ---------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Unified name mangler for various backends.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IR_MANGLER_H
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#define LLVM_IR_MANGLER_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/IR/GlobalValue.h"
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namespace llvm {
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class DataLayout;
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template <typename T> class SmallVectorImpl;
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class Triple;
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class Twine;
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class raw_ostream;
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class Mangler {
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/// We need to give global values the same name every time they are mangled.
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/// This keeps track of the number we give to anonymous ones.
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mutable DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs;
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public:
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/// Print the appropriate prefix and the specified global variable's name.
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/// If the global variable doesn't have a name, this fills in a unique name
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/// for the global.
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void getNameWithPrefix(raw_ostream &OS, const GlobalValue *GV,
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bool CannotUsePrivateLabel) const;
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void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
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bool CannotUsePrivateLabel) const;
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/// Print the appropriate prefix and the specified name as the global variable
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/// name. GVName must not be empty.
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static void getNameWithPrefix(raw_ostream &OS, const Twine &GVName,
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const DataLayout &DL);
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static void getNameWithPrefix(SmallVectorImpl<char> &OutName,
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const Twine &GVName, const DataLayout &DL);
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};
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void emitLinkerFlagsForGlobalCOFF(raw_ostream &OS, const GlobalValue *GV,
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const Triple &TT, Mangler &Mangler);
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void emitLinkerFlagsForUsedCOFF(raw_ostream &OS, const GlobalValue *GV,
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const Triple &T, Mangler &M);
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} // End llvm namespace
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#endif
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