diff options
Diffstat (limited to 'lib/Target/X86/X86ELFWriterInfo.cpp')
-rw-r--r-- | lib/Target/X86/X86ELFWriterInfo.cpp | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/lib/Target/X86/X86ELFWriterInfo.cpp b/lib/Target/X86/X86ELFWriterInfo.cpp deleted file mode 100644 index c1a49a7..0000000 --- a/lib/Target/X86/X86ELFWriterInfo.cpp +++ /dev/null @@ -1,147 +0,0 @@ -//===-- X86ELFWriterInfo.cpp - ELF Writer Info for the X86 backend --------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements ELF writer information for the X86 backend. -// -//===----------------------------------------------------------------------===// - -#include "X86ELFWriterInfo.h" -#include "X86Relocations.h" -#include "llvm/Function.h" -#include "llvm/Support/ELF.h" -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Target/TargetData.h" -#include "llvm/Target/TargetMachine.h" - -using namespace llvm; - -//===----------------------------------------------------------------------===// -// Implementation of the X86ELFWriterInfo class -//===----------------------------------------------------------------------===// - -X86ELFWriterInfo::X86ELFWriterInfo(bool is64Bit_, bool isLittleEndian_) - : TargetELFWriterInfo(is64Bit_, isLittleEndian_) { - EMachine = is64Bit ? EM_X86_64 : EM_386; - } - -X86ELFWriterInfo::~X86ELFWriterInfo() {} - -unsigned X86ELFWriterInfo::getRelocationType(unsigned MachineRelTy) const { - if (is64Bit) { - switch(MachineRelTy) { - case X86::reloc_pcrel_word: - return ELF::R_X86_64_PC32; - case X86::reloc_absolute_word: - return ELF::R_X86_64_32; - case X86::reloc_absolute_word_sext: - return ELF::R_X86_64_32S; - case X86::reloc_absolute_dword: - return ELF::R_X86_64_64; - case X86::reloc_picrel_word: - default: - llvm_unreachable("unknown x86_64 machine relocation type"); - } - } else { - switch(MachineRelTy) { - case X86::reloc_pcrel_word: - return ELF::R_386_PC32; - case X86::reloc_absolute_word: - return ELF::R_386_32; - case X86::reloc_absolute_word_sext: - case X86::reloc_absolute_dword: - case X86::reloc_picrel_word: - default: - llvm_unreachable("unknown x86 machine relocation type"); - } - } -} - -long int X86ELFWriterInfo::getDefaultAddendForRelTy(unsigned RelTy, - long int Modifier) const { - if (is64Bit) { - switch(RelTy) { - case ELF::R_X86_64_PC32: return Modifier - 4; - case ELF::R_X86_64_32: - case ELF::R_X86_64_32S: - case ELF::R_X86_64_64: - return Modifier; - default: - llvm_unreachable("unknown x86_64 relocation type"); - } - } else { - switch(RelTy) { - case ELF::R_386_PC32: return Modifier - 4; - case ELF::R_386_32: return Modifier; - default: - llvm_unreachable("unknown x86 relocation type"); - } - } -} - -unsigned X86ELFWriterInfo::getRelocationTySize(unsigned RelTy) const { - if (is64Bit) { - switch(RelTy) { - case ELF::R_X86_64_PC32: - case ELF::R_X86_64_32: - case ELF::R_X86_64_32S: - return 32; - case ELF::R_X86_64_64: - return 64; - default: - llvm_unreachable("unknown x86_64 relocation type"); - } - } else { - switch(RelTy) { - case ELF::R_386_PC32: - case ELF::R_386_32: - return 32; - default: - llvm_unreachable("unknown x86 relocation type"); - } - } -} - -bool X86ELFWriterInfo::isPCRelativeRel(unsigned RelTy) const { - if (is64Bit) { - switch(RelTy) { - case ELF::R_X86_64_PC32: - return true; - case ELF::R_X86_64_32: - case ELF::R_X86_64_32S: - case ELF::R_X86_64_64: - return false; - default: - llvm_unreachable("unknown x86_64 relocation type"); - } - } else { - switch(RelTy) { - case ELF::R_386_PC32: - return true; - case ELF::R_386_32: - return false; - default: - llvm_unreachable("unknown x86 relocation type"); - } - } -} - -unsigned X86ELFWriterInfo::getAbsoluteLabelMachineRelTy() const { - return is64Bit ? - X86::reloc_absolute_dword : X86::reloc_absolute_word; -} - -long int X86ELFWriterInfo::computeRelocation(unsigned SymOffset, - unsigned RelOffset, - unsigned RelTy) const { - - if (RelTy == ELF::R_X86_64_PC32 || RelTy == ELF::R_386_PC32) - return SymOffset - (RelOffset + 4); - - llvm_unreachable("computeRelocation unknown for this relocation type"); -} |