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Imported Upstream version 5.18.0.207

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Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449
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Xamarin Public Jenkins (auto-signing)
2018-11-17 08:23:10 +00:00
parent 8e12397d70
commit eb85e2fc17
28480 changed files with 72 additions and 3866936 deletions
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112
external/llvm/lib/Target/X86/MCTargetDesc/X86WinCOFFObjectWriter.cpp vendored
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@ -1,112 +0,0 @@
//===-- X86WinCOFFObjectWriter.cpp - X86 Win COFF Writer ------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "MCTargetDesc/X86FixupKinds.h"
#include "MCTargetDesc/X86MCTargetDesc.h"
#include "llvm/BinaryFormat/COFF.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCFixup.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCValue.h"
#include "llvm/MC/MCWinCOFFObjectWriter.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
namespace {
class X86WinCOFFObjectWriter : public MCWinCOFFObjectTargetWriter {
public:
X86WinCOFFObjectWriter(bool Is64Bit);
~X86WinCOFFObjectWriter() override = default;
unsigned getRelocType(MCContext &Ctx, const MCValue &Target,
const MCFixup &Fixup, bool IsCrossSection,
const MCAsmBackend &MAB) const override;
};
} // end anonymous namespace
X86WinCOFFObjectWriter::X86WinCOFFObjectWriter(bool Is64Bit)
: MCWinCOFFObjectTargetWriter(Is64Bit ? COFF::IMAGE_FILE_MACHINE_AMD64
: COFF::IMAGE_FILE_MACHINE_I386) {}
unsigned X86WinCOFFObjectWriter::getRelocType(MCContext &Ctx,
const MCValue &Target,
const MCFixup &Fixup,
bool IsCrossSection,
const MCAsmBackend &MAB) const {
unsigned FixupKind = Fixup.getKind();
if (IsCrossSection) {
if (FixupKind != FK_Data_4 && FixupKind != llvm::X86::reloc_signed_4byte) {
Ctx.reportError(Fixup.getLoc(), "Cannot represent this expression");
return COFF::IMAGE_REL_AMD64_ADDR32;
}
FixupKind = FK_PCRel_4;
}
MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ?
MCSymbolRefExpr::VK_None : Target.getSymA()->getKind();
if (getMachine() == COFF::IMAGE_FILE_MACHINE_AMD64) {
switch (FixupKind) {
case FK_PCRel_4:
case X86::reloc_riprel_4byte:
case X86::reloc_riprel_4byte_movq_load:
case X86::reloc_riprel_4byte_relax:
case X86::reloc_riprel_4byte_relax_rex:
return COFF::IMAGE_REL_AMD64_REL32;
case FK_Data_4:
case X86::reloc_signed_4byte:
case X86::reloc_signed_4byte_relax:
if (Modifier == MCSymbolRefExpr::VK_COFF_IMGREL32)
return COFF::IMAGE_REL_AMD64_ADDR32NB;
if (Modifier == MCSymbolRefExpr::VK_SECREL)
return COFF::IMAGE_REL_AMD64_SECREL;
return COFF::IMAGE_REL_AMD64_ADDR32;
case FK_Data_8:
return COFF::IMAGE_REL_AMD64_ADDR64;
case FK_SecRel_2:
return COFF::IMAGE_REL_AMD64_SECTION;
case FK_SecRel_4:
return COFF::IMAGE_REL_AMD64_SECREL;
default:
llvm_unreachable("unsupported relocation type");
}
} else if (getMachine() == COFF::IMAGE_FILE_MACHINE_I386) {
switch (FixupKind) {
case FK_PCRel_4:
case X86::reloc_riprel_4byte:
case X86::reloc_riprel_4byte_movq_load:
return COFF::IMAGE_REL_I386_REL32;
case FK_Data_4:
case X86::reloc_signed_4byte:
case X86::reloc_signed_4byte_relax:
if (Modifier == MCSymbolRefExpr::VK_COFF_IMGREL32)
return COFF::IMAGE_REL_I386_DIR32NB;
if (Modifier == MCSymbolRefExpr::VK_SECREL)
return COFF::IMAGE_REL_AMD64_SECREL;
return COFF::IMAGE_REL_I386_DIR32;
case FK_SecRel_2:
return COFF::IMAGE_REL_I386_SECTION;
case FK_SecRel_4:
return COFF::IMAGE_REL_I386_SECREL;
default:
llvm_unreachable("unsupported relocation type");
}
} else
llvm_unreachable("Unsupported COFF machine type.");
}
std::unique_ptr<MCObjectWriter>
llvm::createX86WinCOFFObjectWriter(raw_pwrite_stream &OS, bool Is64Bit) {
auto MOTW = llvm::make_unique<X86WinCOFFObjectWriter>(Is64Bit);
return createWinCOFFObjectWriter(std::move(MOTW), OS);
}