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88 lines
2.5 KiB
88 lines
2.5 KiB
//===- X86GOTPLT.cpp ------------------------------------------------------===//
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//
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// The MCLinker Project
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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 "X86GOTPLT.h"
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#include "X86PLT.h"
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#include "mcld/LD/LDSection.h"
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#include "mcld/LD/LDFileFormat.h"
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#include "mcld/Support/MsgHandling.h"
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#include <llvm/Support/Casting.h>
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namespace mcld {
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//===----------------------------------------------------------------------===//
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// X86_32GOTPLT
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//===----------------------------------------------------------------------===//
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X86_32GOTPLT::X86_32GOTPLT(LDSection& pSection) : X86_32GOT(pSection) {
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// create GOT0 entries
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for (size_t i = 0; i < X86GOTPLT0Num; ++i)
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create();
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}
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X86_32GOTPLT::~X86_32GOTPLT() {
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}
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bool X86_32GOTPLT::hasGOT1() const {
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return (m_SectionData->size() > X86GOTPLT0Num);
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}
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void X86_32GOTPLT::applyGOT0(uint64_t pAddress) {
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llvm::cast<X86_32GOTEntry>(*(m_SectionData->getFragmentList().begin()))
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.setValue(pAddress);
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}
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void X86_32GOTPLT::applyAllGOTPLT(const X86PLT& pPLT) {
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iterator it = begin();
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// skip GOT0
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for (size_t i = 0; i < X86GOTPLT0Num; ++i)
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++it;
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// address of corresponding plt entry
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uint64_t plt_addr = pPLT.addr() + pPLT.getPLT0Size();
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for (; it != end(); ++it) {
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llvm::cast<X86_32GOTEntry>(*it).setValue(plt_addr + 6);
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plt_addr += pPLT.getPLT1Size();
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}
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}
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//===----------------------------------------------------------------------===//
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// X86_64GOTPLT
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//===----------------------------------------------------------------------===//
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X86_64GOTPLT::X86_64GOTPLT(LDSection& pSection) : X86_64GOT(pSection) {
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for (size_t i = 0; i < X86GOTPLT0Num; ++i)
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create();
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}
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X86_64GOTPLT::~X86_64GOTPLT() {
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}
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bool X86_64GOTPLT::hasGOT1() const {
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return (m_SectionData->size() > X86GOTPLT0Num);
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}
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void X86_64GOTPLT::applyGOT0(uint64_t pAddress) {
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llvm::cast<X86_64GOTEntry>(*(m_SectionData->getFragmentList().begin()))
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.setValue(pAddress);
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}
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void X86_64GOTPLT::applyAllGOTPLT(const X86PLT& pPLT) {
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iterator it = begin();
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// skip GOT0
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for (size_t i = 0; i < X86GOTPLT0Num; ++i)
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++it;
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// address of corresponding plt entry
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uint64_t plt_addr = pPLT.addr() + pPLT.getPLT0Size();
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for (; it != end(); ++it) {
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llvm::cast<X86_64GOTEntry>(*it).setValue(plt_addr + 6);
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plt_addr += pPLT.getPLT1Size();
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}
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}
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} // namespace mcld
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