1 //===-- X86WinCOFFObjectWriter.cpp - X86 Win COFF Writer ------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "MCTargetDesc/X86FixupKinds.h"
11 #include "MCTargetDesc/X86MCTargetDesc.h"
12 #include "llvm/MC/MCExpr.h"
13 #include "llvm/MC/MCValue.h"
14 #include "llvm/MC/MCWinCOFFObjectWriter.h"
15 #include "llvm/Support/COFF.h"
16 #include "llvm/Support/ErrorHandling.h"
25 class X86WinCOFFObjectWriter : public MCWinCOFFObjectTargetWriter {
29 X86WinCOFFObjectWriter(bool Is64Bit_);
30 virtual ~X86WinCOFFObjectWriter();
32 unsigned getRelocType(const MCValue &Target, const MCFixup &Fixup,
33 bool IsCrossSection) const override;
37 X86WinCOFFObjectWriter::X86WinCOFFObjectWriter(bool Is64Bit_)
38 : MCWinCOFFObjectTargetWriter(Is64Bit_ ? COFF::IMAGE_FILE_MACHINE_AMD64 :
39 COFF::IMAGE_FILE_MACHINE_I386),
42 X86WinCOFFObjectWriter::~X86WinCOFFObjectWriter() {}
44 unsigned X86WinCOFFObjectWriter::getRelocType(const MCValue &Target,
46 bool IsCrossSection) const {
47 unsigned FixupKind = IsCrossSection ? FK_PCRel_4 : Fixup.getKind();
49 MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ?
50 MCSymbolRefExpr::VK_None : Target.getSymA()->getKind();
54 case X86::reloc_riprel_4byte:
55 case X86::reloc_riprel_4byte_movq_load:
56 return Is64Bit ? COFF::IMAGE_REL_AMD64_REL32 : COFF::IMAGE_REL_I386_REL32;
58 case X86::reloc_signed_4byte:
59 if (Modifier == MCSymbolRefExpr::VK_COFF_IMGREL32)
60 return Is64Bit ? COFF::IMAGE_REL_AMD64_ADDR32NB :
61 COFF::IMAGE_REL_I386_DIR32NB;
62 return Is64Bit ? COFF::IMAGE_REL_AMD64_ADDR32 : COFF::IMAGE_REL_I386_DIR32;
65 return COFF::IMAGE_REL_AMD64_ADDR64;
66 llvm_unreachable("unsupported relocation type");
68 return Is64Bit ? COFF::IMAGE_REL_AMD64_SECTION
69 : COFF::IMAGE_REL_I386_SECTION;
71 return Is64Bit ? COFF::IMAGE_REL_AMD64_SECREL : COFF::IMAGE_REL_I386_SECREL;
73 llvm_unreachable("unsupported relocation type");
77 MCObjectWriter *llvm::createX86WinCOFFObjectWriter(raw_ostream &OS,
79 MCWinCOFFObjectTargetWriter *MOTW = new X86WinCOFFObjectWriter(Is64Bit);
80 return createWinCOFFObjectWriter(MOTW, OS);