4d0d1babfc
This patch fixes the TLS dynamic variable exportation from .got.plt segments, created by General-dynamic relocations (TLSDESC). Current code only export symbols in dynamic table from .got sections. llvm-svn: 242142
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
//===- lib/ReaderWriter/ELF/AArch64/AArch64ExecutableWriter.cpp -------------===//
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//
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// The LLVM Linker
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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 "AArch64LinkingContext.h"
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#include "AArch64ExecutableWriter.h"
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#include "AArch64TargetHandler.h"
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#include "AArch64SectionChunks.h"
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namespace lld {
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namespace elf {
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AArch64ExecutableWriter::AArch64ExecutableWriter(AArch64LinkingContext &ctx,
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AArch64TargetLayout &layout)
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: ExecutableWriter(ctx, layout), _targetLayout(layout) {}
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void AArch64ExecutableWriter::createImplicitFiles(
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std::vector<std::unique_ptr<File>> &result) {
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ExecutableWriter::createImplicitFiles(result);
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auto gotFile = llvm::make_unique<SimpleFile>("GOTFile");
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gotFile->addAtom(*new (gotFile->allocator()) GlobalOffsetTableAtom(*gotFile));
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if (this->_ctx.isDynamic())
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gotFile->addAtom(*new (gotFile->allocator()) DynamicAtom(*gotFile));
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result.push_back(std::move(gotFile));
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}
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void AArch64ExecutableWriter::buildDynamicSymbolTable(const File &file) {
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for (auto sec : this->_layout.sections()) {
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if (auto section = dyn_cast<AtomSection<ELF64LE>>(sec)) {
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for (const auto &atom : section->atoms()) {
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// Add all globals GOT symbols (in both .got and .got.plt sections)
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// on dynamic symbol table.
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for (const auto §ion : _targetLayout.getGOTSections()) {
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if (section->hasGlobalGOTEntry(atom->_atom))
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_dynamicSymbolTable->addSymbol(atom->_atom, section->ordinal(),
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atom->_virtualAddr, atom);
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}
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}
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}
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}
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ExecutableWriter<ELF64LE>::buildDynamicSymbolTable(file);
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}
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} // namespace elf
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} // namespace lld
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