1 //===- lib/MC/MCObjectWriter.cpp - MCObjectWriter implementation ----------===//
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 #include "llvm/MC/MCAssembler.h"
11 #include "llvm/MC/MCExpr.h"
12 #include "llvm/MC/MCObjectWriter.h"
13 #include "llvm/MC/MCSymbol.h"
17 MCObjectWriter::~MCObjectWriter() {
20 bool MCObjectWriter::isSymbolRefDifferenceFullyResolved(
21 const MCAssembler &Asm, const MCSymbolRefExpr *A, const MCSymbolRefExpr *B,
23 // Modified symbol references cannot be resolved.
24 if (A->getKind() != MCSymbolRefExpr::VK_None ||
25 B->getKind() != MCSymbolRefExpr::VK_None)
28 const MCSymbol &SA = A->getSymbol();
29 const MCSymbol &SB = B->getSymbol();
30 if (SA.isUndefined() || SB.isUndefined())
33 if (!SA.getFragment() || !SB.getFragment())
36 return isSymbolRefDifferenceFullyResolvedImpl(Asm, SA, *SB.getFragment(),
40 bool MCObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(
41 const MCAssembler &Asm, const MCSymbol &SymA, const MCFragment &FB,
42 bool InSet, bool IsPCRel) const {
43 const MCSection &SecA = SymA.getSection();
44 const MCSection &SecB = *FB.getParent();
45 // On ELF and COFF A - B is absolute if A and B are in the same section.
46 return &SecA == &SecB;
49 bool MCObjectWriter::isWeak(const MCSymbol &) const { return false; }