a8c4d48478
At the moment errors in relocation processing such as out of range values are not detected or at best trapped by asserts which will not be present in release builds. This patch adds support for checking error return values from applyRelocation() calls and printing an appropriate error message. It also adds support for printing multiple errors rather than just the first one. llvm-svn: 226557
61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
//===- lib/ReaderWriter/ELF/Mips/MipsTargetHandler.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 "ELFFile.h"
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#include "MipsDynamicLibraryWriter.h"
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#include "MipsExecutableWriter.h"
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#include "MipsLinkingContext.h"
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#include "MipsTargetHandler.h"
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using namespace lld;
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using namespace elf;
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typedef llvm::object::ELFType<llvm::support::little, 2, false> Mips32ElELFType;
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MipsTargetHandler::MipsTargetHandler(MipsLinkingContext &ctx)
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: _ctx(ctx), _runtimeFile(new MipsRuntimeFile<Mips32ElELFType>(ctx)),
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_targetLayout(new MipsTargetLayout<Mips32ElELFType>(ctx)),
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_relocationHandler(new MipsTargetRelocationHandler(*_targetLayout)) {}
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std::unique_ptr<Writer> MipsTargetHandler::getWriter() {
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switch (_ctx.getOutputELFType()) {
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case llvm::ELF::ET_EXEC:
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return std::unique_ptr<Writer>(
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new MipsExecutableWriter<Mips32ElELFType>(_ctx, *_targetLayout));
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case llvm::ELF::ET_DYN:
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return std::unique_ptr<Writer>(
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new MipsDynamicLibraryWriter<Mips32ElELFType>(_ctx, *_targetLayout));
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case llvm::ELF::ET_REL:
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llvm_unreachable("TODO: support -r mode");
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default:
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llvm_unreachable("unsupported output type");
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}
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}
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void MipsTargetHandler::registerRelocationNames(Registry ®istry) {
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registry.addKindTable(Reference::KindNamespace::ELF,
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Reference::KindArch::Mips, kindStrings);
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}
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#define ELF_RELOC(name, value) LLD_KIND_STRING_ENTRY(name),
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const Registry::KindStrings MipsTargetHandler::kindStrings[] = {
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#include "llvm/Support/ELFRelocs/Mips.def"
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LLD_KIND_STRING_ENTRY(LLD_R_MIPS_GLOBAL_GOT),
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LLD_KIND_STRING_ENTRY(LLD_R_MIPS_32_HI16),
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LLD_KIND_STRING_ENTRY(LLD_R_MIPS_GLOBAL_26),
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LLD_KIND_STRING_ENTRY(LLD_R_MIPS_HI16),
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LLD_KIND_STRING_ENTRY(LLD_R_MIPS_LO16),
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LLD_KIND_STRING_ENTRY(LLD_R_MIPS_STO_PLT),
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LLD_KIND_STRING_ENTRY(LLD_R_MICROMIPS_GLOBAL_26_S1),
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LLD_KIND_STRING_END
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};
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#undef ELF_RELOC
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