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e97d937576
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238589 91177308-0d34-0410-b5e6-96231b3b80d8
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
//===-- MCELFObjectTargetWriter.cpp - ELF Target Writer Subclass ----------===//
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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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#include "llvm/ADT/STLExtras.h"
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#include "llvm/MC/MCELFObjectWriter.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCValue.h"
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using namespace llvm;
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MCELFObjectTargetWriter::MCELFObjectTargetWriter(bool Is64Bit_,
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uint8_t OSABI_,
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uint16_t EMachine_,
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bool HasRelocationAddend_,
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bool IsN64_)
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: OSABI(OSABI_), EMachine(EMachine_),
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HasRelocationAddend(HasRelocationAddend_), Is64Bit(Is64Bit_),
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IsN64(IsN64_){
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}
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bool MCELFObjectTargetWriter::needsRelocateWithSymbol(const MCSymbol &Sym,
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unsigned Type) const {
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return false;
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}
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// ELF doesn't require relocations to be in any order. We sort by the Offset,
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// just to match gnu as for easier comparison. The use type is an arbitrary way
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// of making the sort deterministic.
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static int cmpRel(const ELFRelocationEntry *AP, const ELFRelocationEntry *BP) {
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const ELFRelocationEntry &A = *AP;
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const ELFRelocationEntry &B = *BP;
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if (A.Offset != B.Offset)
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return B.Offset - A.Offset;
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if (B.Type != A.Type)
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return A.Type - B.Type;
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//llvm_unreachable("ELFRelocs might be unstable!");
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return 0;
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}
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void
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MCELFObjectTargetWriter::sortRelocs(const MCAssembler &Asm,
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std::vector<ELFRelocationEntry> &Relocs) {
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array_pod_sort(Relocs.begin(), Relocs.end(), cmpRel);
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}
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