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Diffstat (limited to 'lld/lib/ReaderWriter/ELF/Mips/MipsELFWriters.cpp')
-rw-r--r--lld/lib/ReaderWriter/ELF/Mips/MipsELFWriters.cpp292
1 files changed, 0 insertions, 292 deletions
diff --git a/lld/lib/ReaderWriter/ELF/Mips/MipsELFWriters.cpp b/lld/lib/ReaderWriter/ELF/Mips/MipsELFWriters.cpp
deleted file mode 100644
index b97a4f5a907..00000000000
--- a/lld/lib/ReaderWriter/ELF/Mips/MipsELFWriters.cpp
+++ /dev/null
@@ -1,292 +0,0 @@
-//===- lib/ReaderWriter/ELF/Mips/MipsELFWriters.cpp -----------------------===//
-//
-// The LLVM Linker
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MipsDynamicTable.h"
-#include "MipsELFWriters.h"
-#include "MipsLinkingContext.h"
-#include "MipsTargetHandler.h"
-#include "MipsTargetLayout.h"
-
-namespace {
-class MipsDynamicAtom : public lld::elf::DynamicAtom {
-public:
- MipsDynamicAtom(const lld::File &f) : DynamicAtom(f) {}
-
- ContentPermissions permissions() const override { return permR__; }
-};
-}
-
-namespace lld {
-namespace elf {
-
-template <class ELFT>
-MipsELFWriter<ELFT>::MipsELFWriter(MipsLinkingContext &ctx,
- MipsTargetLayout<ELFT> &targetLayout,
- const MipsAbiInfoHandler<ELFT> &abiInfo)
- : _ctx(ctx), _targetLayout(targetLayout), _abiInfo(abiInfo) {}
-
-template <class ELFT>
-void MipsELFWriter<ELFT>::setELFHeader(ELFHeader<ELFT> &elfHeader) {
- elfHeader.e_version(1);
- elfHeader.e_ident(llvm::ELF::EI_VERSION, llvm::ELF::EV_CURRENT);
- elfHeader.e_ident(llvm::ELF::EI_OSABI, llvm::ELF::ELFOSABI_NONE);
-
- unsigned char abiVer = 0;
- if (_ctx.getOutputELFType() == ET_EXEC && _abiInfo.isCPicOnly())
- abiVer = 1;
- if (_abiInfo.isFp64())
- abiVer = 3;
-
- elfHeader.e_ident(llvm::ELF::EI_ABIVERSION, abiVer);
- elfHeader.e_flags(_abiInfo.getFlags());
-}
-
-template <class ELFT>
-void MipsELFWriter<ELFT>::finalizeMipsRuntimeAtomValues() {
- auto gotSection = _targetLayout.findOutputSection(".got");
- auto got = gotSection ? gotSection->virtualAddr() : 0;
- auto gp = gotSection ? got + _targetLayout.getGPOffset() : 0;
-
- setAtomValue("_gp", gp);
- setAtomValue("_gp_disp", gp);
- setAtomValue("__gnu_local_gp", gp);
-
- if (_ctx.isDynamic() && _ctx.getOutputELFType() == ET_EXEC)
- setAtomValue("_DYNAMIC_LINKING", 1);
-}
-
-template <class ELFT>
-std::unique_ptr<RuntimeFile<ELFT>> MipsELFWriter<ELFT>::createRuntimeFile() {
- auto file = llvm::make_unique<RuntimeFile<ELFT>>(_ctx, "Mips runtime file");
- file->addAbsoluteAtom("_gp");
- file->addAbsoluteAtom("_gp_disp");
- file->addAbsoluteAtom("__gnu_local_gp");
- if (_ctx.isDynamic()) {
- file->addAtom(*new (file->allocator()) MipsDynamicAtom(*file));
- if (_ctx.getOutputELFType() == ET_EXEC)
- file->addAbsoluteAtom("_DYNAMIC_LINKING");
- }
- return file;
-}
-
-template <class ELFT>
-unique_bump_ptr<Section<ELFT>>
-MipsELFWriter<ELFT>::createOptionsSection(llvm::BumpPtrAllocator &alloc) {
- typedef unique_bump_ptr<Section<ELFT>> Ptr;
- const auto &regMask = _abiInfo.getRegistersMask();
- if (!regMask.hasValue())
- return Ptr();
- return ELFT::Is64Bits
- ? Ptr(new (alloc)
- MipsOptionsSection<ELFT>(_ctx, _targetLayout, *regMask))
- : Ptr(new (alloc)
- MipsReginfoSection<ELFT>(_ctx, _targetLayout, *regMask));
-}
-
-template <class ELFT>
-unique_bump_ptr<Section<ELFT>>
-MipsELFWriter<ELFT>::createAbiFlagsSection(llvm::BumpPtrAllocator &alloc) {
- typedef unique_bump_ptr<Section<ELFT>> Ptr;
- const auto &abi = _abiInfo.getAbiFlags();
- if (!abi.hasValue())
- return Ptr();
- return Ptr(new (alloc) MipsAbiFlagsSection<ELFT>(_ctx, _targetLayout, *abi));
-}
-
-template <class ELFT>
-void MipsELFWriter<ELFT>::setAtomValue(StringRef name, uint64_t value) {
- AtomLayout *atom = _targetLayout.findAbsoluteAtom(name);
- assert(atom);
- atom->_virtualAddr = value;
-}
-
-template <class ELFT>
-MipsDynamicLibraryWriter<ELFT>::MipsDynamicLibraryWriter(
- MipsLinkingContext &ctx, MipsTargetLayout<ELFT> &layout,
- const MipsAbiInfoHandler<ELFT> &abiInfo)
- : DynamicLibraryWriter<ELFT>(ctx, layout),
- _writeHelper(ctx, layout, abiInfo), _targetLayout(layout) {}
-
-template <class ELFT>
-void MipsDynamicLibraryWriter<ELFT>::createImplicitFiles(
- std::vector<std::unique_ptr<File>> &result) {
- DynamicLibraryWriter<ELFT>::createImplicitFiles(result);
- result.push_back(_writeHelper.createRuntimeFile());
-}
-
-template <class ELFT>
-void MipsDynamicLibraryWriter<ELFT>::finalizeDefaultAtomValues() {
- DynamicLibraryWriter<ELFT>::finalizeDefaultAtomValues();
- _writeHelper.finalizeMipsRuntimeAtomValues();
-}
-
-template <class ELFT>
-void MipsDynamicLibraryWriter<ELFT>::createDefaultSections() {
- DynamicLibraryWriter<ELFT>::createDefaultSections();
- _reginfo = _writeHelper.createOptionsSection(this->_alloc);
- if (_reginfo)
- this->_layout.addSection(_reginfo.get());
- _abiFlags = _writeHelper.createAbiFlagsSection(this->_alloc);
- if (_abiFlags)
- this->_layout.addSection(_abiFlags.get());
-}
-
-template <class ELFT>
-std::error_code MipsDynamicLibraryWriter<ELFT>::setELFHeader() {
- DynamicLibraryWriter<ELFT>::setELFHeader();
- _writeHelper.setELFHeader(*this->_elfHeader);
- return std::error_code();
-}
-
-template <class ELFT>
-unique_bump_ptr<SymbolTable<ELFT>>
-MipsDynamicLibraryWriter<ELFT>::createSymbolTable() {
- return unique_bump_ptr<SymbolTable<ELFT>>(
- new (this->_alloc) MipsSymbolTable<ELFT>(this->_ctx));
-}
-
-template <class ELFT>
-unique_bump_ptr<DynamicTable<ELFT>>
-MipsDynamicLibraryWriter<ELFT>::createDynamicTable() {
- return unique_bump_ptr<DynamicTable<ELFT>>(
- new (this->_alloc) MipsDynamicTable<ELFT>(this->_ctx, _targetLayout));
-}
-
-template <class ELFT>
-unique_bump_ptr<DynamicSymbolTable<ELFT>>
-MipsDynamicLibraryWriter<ELFT>::createDynamicSymbolTable() {
- return unique_bump_ptr<DynamicSymbolTable<ELFT>>(new (
- this->_alloc) MipsDynamicSymbolTable<ELFT>(this->_ctx, _targetLayout));
-}
-
-template class MipsDynamicLibraryWriter<ELF32BE>;
-template class MipsDynamicLibraryWriter<ELF32LE>;
-template class MipsDynamicLibraryWriter<ELF64BE>;
-template class MipsDynamicLibraryWriter<ELF64LE>;
-
-template <class ELFT>
-MipsExecutableWriter<ELFT>::MipsExecutableWriter(
- MipsLinkingContext &ctx, MipsTargetLayout<ELFT> &layout,
- const MipsAbiInfoHandler<ELFT> &abiInfo)
- : ExecutableWriter<ELFT>(ctx, layout), _writeHelper(ctx, layout, abiInfo),
- _targetLayout(layout) {}
-
-template <class ELFT>
-std::error_code MipsExecutableWriter<ELFT>::setELFHeader() {
- std::error_code ec = ExecutableWriter<ELFT>::setELFHeader();
- if (ec)
- return ec;
-
- StringRef entryName = this->_ctx.entrySymbolName();
- if (const AtomLayout *al = this->_layout.findAtomLayoutByName(entryName)) {
- const auto *ea = cast<DefinedAtom>(al->_atom);
- if (ea->codeModel() == DefinedAtom::codeMipsMicro ||
- ea->codeModel() == DefinedAtom::codeMipsMicroPIC)
- // Adjust entry symbol value if this symbol is microMIPS encoded.
- this->_elfHeader->e_entry(al->_virtualAddr | 1);
- }
-
- _writeHelper.setELFHeader(*this->_elfHeader);
- return std::error_code();
-}
-
-template <class ELFT>
-void MipsExecutableWriter<ELFT>::buildDynamicSymbolTable(const File &file) {
- // MIPS ABI requires to add to dynsym even undefined symbols
- // if they have a corresponding entries in a global part of GOT.
- for (auto sec : this->_layout.sections())
- if (auto section = dyn_cast<AtomSection<ELFT>>(sec))
- for (const auto &atom : section->atoms()) {
- if (_targetLayout.getGOTSection().hasGlobalGOTEntry(atom->_atom)) {
- this->_dynamicSymbolTable->addSymbol(atom->_atom, section->ordinal(),
- atom->_virtualAddr, atom);
- continue;
- }
-
- const DefinedAtom *da = dyn_cast<const DefinedAtom>(atom->_atom);
- if (!da)
- continue;
-
- if (da->dynamicExport() != DefinedAtom::dynamicExportAlways &&
- !this->_ctx.isDynamicallyExportedSymbol(da->name()) &&
- !(this->_ctx.shouldExportDynamic() &&
- da->scope() == Atom::Scope::scopeGlobal))
- continue;
-
- this->_dynamicSymbolTable->addSymbol(atom->_atom, section->ordinal(),
- atom->_virtualAddr, atom);
- }
-
- for (const UndefinedAtom *a : file.undefined())
- // FIXME (simon): Consider to move this check to the
- // MipsELFUndefinedAtom class method. That allows to
- // handle more complex coditions in the future.
- if (_targetLayout.getGOTSection().hasGlobalGOTEntry(a))
- this->_dynamicSymbolTable->addSymbol(a, ELF::SHN_UNDEF);
-
- // Skip our immediate parent class method
- // ExecutableWriter<ELFT>::buildDynamicSymbolTable because we replaced it
- // with our own version. Call OutputELFWriter directly.
- OutputELFWriter<ELFT>::buildDynamicSymbolTable(file);
-}
-
-template <class ELFT>
-void MipsExecutableWriter<ELFT>::createImplicitFiles(
- std::vector<std::unique_ptr<File>> &result) {
- ExecutableWriter<ELFT>::createImplicitFiles(result);
- result.push_back(_writeHelper.createRuntimeFile());
-}
-
-template <class ELFT>
-void MipsExecutableWriter<ELFT>::finalizeDefaultAtomValues() {
- // Finalize the atom values that are part of the parent.
- ExecutableWriter<ELFT>::finalizeDefaultAtomValues();
- _writeHelper.finalizeMipsRuntimeAtomValues();
-}
-
-template <class ELFT> void MipsExecutableWriter<ELFT>::createDefaultSections() {
- ExecutableWriter<ELFT>::createDefaultSections();
- _reginfo = _writeHelper.createOptionsSection(this->_alloc);
- if (_reginfo)
- this->_layout.addSection(_reginfo.get());
- _abiFlags = _writeHelper.createAbiFlagsSection(this->_alloc);
- if (_abiFlags)
- this->_layout.addSection(_abiFlags.get());
-}
-
-template <class ELFT>
-unique_bump_ptr<SymbolTable<ELFT>>
-MipsExecutableWriter<ELFT>::createSymbolTable() {
- return unique_bump_ptr<SymbolTable<ELFT>>(
- new (this->_alloc) MipsSymbolTable<ELFT>(this->_ctx));
-}
-
-/// \brief create dynamic table
-template <class ELFT>
-unique_bump_ptr<DynamicTable<ELFT>>
-MipsExecutableWriter<ELFT>::createDynamicTable() {
- return unique_bump_ptr<DynamicTable<ELFT>>(
- new (this->_alloc) MipsDynamicTable<ELFT>(this->_ctx, _targetLayout));
-}
-
-/// \brief create dynamic symbol table
-template <class ELFT>
-unique_bump_ptr<DynamicSymbolTable<ELFT>>
-MipsExecutableWriter<ELFT>::createDynamicSymbolTable() {
- return unique_bump_ptr<DynamicSymbolTable<ELFT>>(new (
- this->_alloc) MipsDynamicSymbolTable<ELFT>(this->_ctx, _targetLayout));
-}
-
-template class MipsExecutableWriter<ELF32BE>;
-template class MipsExecutableWriter<ELF32LE>;
-template class MipsExecutableWriter<ELF64BE>;
-template class MipsExecutableWriter<ELF64LE>;
-
-} // elf
-} // lld
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