diff options
Diffstat (limited to 'lib/Target/X86/X86ELFWriterInfo.cpp')
-rw-r--r-- | lib/Target/X86/X86ELFWriterInfo.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/Target/X86/X86ELFWriterInfo.cpp b/lib/Target/X86/X86ELFWriterInfo.cpp index d84034b..315118f 100644 --- a/lib/Target/X86/X86ELFWriterInfo.cpp +++ b/lib/Target/X86/X86ELFWriterInfo.cpp @@ -12,11 +12,17 @@ //===----------------------------------------------------------------------===// #include "X86ELFWriterInfo.h" +#include "X86Relocations.h" #include "llvm/Function.h" #include "llvm/Target/TargetData.h" #include "llvm/Target/TargetMachine.h" + using namespace llvm; +//===----------------------------------------------------------------------===// +// Implementation of the X86ELFWriterInfo class +//===----------------------------------------------------------------------===// + X86ELFWriterInfo::X86ELFWriterInfo(TargetMachine &TM) : TargetELFWriterInfo(TM) { bool is64Bit = TM.getTargetData()->getPointerSizeInBits() == 64; @@ -25,6 +31,34 @@ X86ELFWriterInfo::X86ELFWriterInfo(TargetMachine &TM) X86ELFWriterInfo::~X86ELFWriterInfo() {} +unsigned X86ELFWriterInfo::getRelocationType(unsigned MachineRelTy) const { + if (is64Bit) { + switch(MachineRelTy) { + case X86::reloc_pcrel_word: + return R_X86_64_PC32; + case X86::reloc_absolute_word: + return R_X86_64_32; + case X86::reloc_absolute_dword: + return R_X86_64_64; + case X86::reloc_picrel_word: + default: + assert(0 && "unknown relocation type"); + } + } else { + switch(MachineRelTy) { + case X86::reloc_pcrel_word: + return R_386_PC32; + case X86::reloc_absolute_word: + return R_386_32; + case X86::reloc_absolute_dword: + case X86::reloc_picrel_word: + default: + assert(0 && "unknown relocation type"); + } + } + return 0; +} + unsigned X86ELFWriterInfo::getFunctionAlignment(const Function *F) const { unsigned FnAlign = 4; @@ -36,3 +70,15 @@ unsigned X86ELFWriterInfo::getFunctionAlignment(const Function *F) const { return (1 << FnAlign); } + +long int X86ELFWriterInfo::getAddendForRelTy(unsigned RelTy) const { + if (is64Bit) { + switch(RelTy) { + case R_X86_64_PC32: return -4; + break; + default: + assert(0 && "unknown x86 relocation type"); + } + } + return 0; +} |