1df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola//===-- X86WinCOFFObjectWriter.cpp - X86 Win COFF Writer ------------------===// 2df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola// 3df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola// The LLVM Compiler Infrastructure 4df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola// 5df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola// This file is distributed under the University of Illinois Open Source 6df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola// License. See LICENSE.TXT for details. 7df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola// 8df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola//===----------------------------------------------------------------------===// 9df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 10df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola#include "MCTargetDesc/X86FixupKinds.h" 11df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola#include "MCTargetDesc/X86MCTargetDesc.h" 1218d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck#include "llvm/MC/MCExpr.h" 1318d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck#include "llvm/MC/MCValue.h" 14df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola#include "llvm/MC/MCWinCOFFObjectWriter.h" 15df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola#include "llvm/Support/COFF.h" 16df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola#include "llvm/Support/ErrorHandling.h" 17df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 18df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindolausing namespace llvm; 19df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 20df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindolanamespace llvm { 21df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola class MCObjectWriter; 22df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola} 23df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 24df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindolanamespace { 25df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola class X86WinCOFFObjectWriter : public MCWinCOFFObjectTargetWriter { 26df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola const bool Is64Bit; 27df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 28df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola public: 29df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola X86WinCOFFObjectWriter(bool Is64Bit_); 30df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola ~X86WinCOFFObjectWriter(); 31df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 3218d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck virtual unsigned getRelocType(const MCValue &Target, 3318d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck const MCFixup &Fixup, 3418d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck bool IsCrossSection) const LLVM_OVERRIDE; 35df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola }; 36df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola} 37df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 38df09270ae897e7fa64a7c162de163c32ee181a03Rafael EspindolaX86WinCOFFObjectWriter::X86WinCOFFObjectWriter(bool Is64Bit_) 39df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola : MCWinCOFFObjectTargetWriter(Is64Bit_ ? COFF::IMAGE_FILE_MACHINE_AMD64 : 40df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola COFF::IMAGE_FILE_MACHINE_I386), 41df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola Is64Bit(Is64Bit_) {} 42df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 43df09270ae897e7fa64a7c162de163c32ee181a03Rafael EspindolaX86WinCOFFObjectWriter::~X86WinCOFFObjectWriter() {} 44df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 4518d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieckunsigned X86WinCOFFObjectWriter::getRelocType(const MCValue &Target, 4618d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck const MCFixup &Fixup, 4718d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck bool IsCrossSection) const { 4818d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck unsigned FixupKind = IsCrossSection ? FK_PCRel_4 : Fixup.getKind(); 4918d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck 5018d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ? 5118d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck MCSymbolRefExpr::VK_None : Target.getSymA()->getKind(); 5218d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck 53df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola switch (FixupKind) { 54df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola case FK_PCRel_4: 55df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola case X86::reloc_riprel_4byte: 56df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola case X86::reloc_riprel_4byte_movq_load: 57df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola return Is64Bit ? COFF::IMAGE_REL_AMD64_REL32 : COFF::IMAGE_REL_I386_REL32; 58df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola case FK_Data_4: 59df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola case X86::reloc_signed_4byte: 6018d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck if (Modifier == MCSymbolRefExpr::VK_COFF_IMGREL32) 6118d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck return Is64Bit ? COFF::IMAGE_REL_AMD64_ADDR32NB : 6218d49acdab79d6f0966b47182b6c3a2ba3d9f80fNico Rieck COFF::IMAGE_REL_I386_DIR32NB; 63df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola return Is64Bit ? COFF::IMAGE_REL_AMD64_ADDR32 : COFF::IMAGE_REL_I386_DIR32; 64df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola case FK_Data_8: 65df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola if (Is64Bit) 66df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola return COFF::IMAGE_REL_AMD64_ADDR64; 674d6ccb5f68cd7c6418a209f1fa4dbade569e4493David Blaikie llvm_unreachable("unsupported relocation type"); 68ce618af3e880ae0ec0ddd81aca8ed5bbd4096ae4Rafael Espindola case FK_SecRel_4: 69d4a19b6a72d19a6f90b676aac37118664b7b7a84Anton Korobeynikov return Is64Bit ? COFF::IMAGE_REL_AMD64_SECREL : COFF::IMAGE_REL_I386_SECREL; 70df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola default: 71df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola llvm_unreachable("unsupported relocation type"); 72df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola } 73df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola} 74df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola 75df09270ae897e7fa64a7c162de163c32ee181a03Rafael EspindolaMCObjectWriter *llvm::createX86WinCOFFObjectWriter(raw_ostream &OS, 76df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola bool Is64Bit) { 77df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola MCWinCOFFObjectTargetWriter *MOTW = new X86WinCOFFObjectWriter(Is64Bit); 78df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola return createWinCOFFObjectWriter(MOTW, OS); 79df09270ae897e7fa64a7c162de163c32ee181a03Rafael Espindola} 80