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Move the X86 specific bits of the ELF writer to the Target/X86 directory.

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Other targets will follow shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147060 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2011-12-21 17:30:17 +00:00
parent dc9a8a378d
commit edae8e1e4d
8 changed files with 255 additions and 221 deletions
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201
lib/MC/ELFObjectWriter.cpp
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@ -29,7 +29,6 @@
#include "llvm/ADT/StringSwitch.h"
#include "../Target/Mips/MCTargetDesc/MipsFixupKinds.h"
#include "../Target/X86/MCTargetDesc/X86FixupKinds.h"
#include "../Target/ARM/MCTargetDesc/ARMFixupKinds.h"
#include "../Target/PowerPC/MCTargetDesc/PPCFixupKinds.h"
@ -1261,7 +1260,7 @@ MCObjectWriter *llvm::createELFObjectWriter(MCELFObjectTargetWriter *MOTW,
switch (MOTW->getEMachine()) {
case ELF::EM_386:
case ELF::EM_X86_64:
return new X86ELFObjectWriter(MOTW, OS, IsLittleEndian); break;
return new ELFObjectWriter(MOTW, OS, IsLittleEndian); break;
case ELF::EM_ARM:
return new ARMELFObjectWriter(MOTW, OS, IsLittleEndian); break;
case ELF::EM_MBLAZE:
@ -1275,6 +1274,15 @@ MCObjectWriter *llvm::createELFObjectWriter(MCELFObjectTargetWriter *MOTW,
}
}
unsigned ELFObjectWriter::GetRelocType(const MCValue &Target,
const MCFixup &Fixup,
bool IsPCRel,
bool IsRelocWithSymbol,
int64_t Addend) const {
return TargetObjectWriter->GetRelocType(Target, Fixup, IsPCRel,
IsRelocWithSymbol, Addend);
}
/// START OF SUBCLASSES for ELFObjectWriter
//===- ARMELFObjectWriter -------------------------------------------===//
@ -1628,195 +1636,6 @@ unsigned MBlazeELFObjectWriter::GetRelocType(const MCValue &Target,
return Type;
}
//===- X86ELFObjectWriter -------------------------------------------===//
X86ELFObjectWriter::X86ELFObjectWriter(MCELFObjectTargetWriter *MOTW,
raw_ostream &_OS,
bool IsLittleEndian)
: ELFObjectWriter(MOTW, _OS, IsLittleEndian)
{}
X86ELFObjectWriter::~X86ELFObjectWriter()
{}
unsigned X86ELFObjectWriter::GetRelocType(const MCValue &Target,
const MCFixup &Fixup,
bool IsPCRel,
bool IsRelocWithSymbol,
int64_t Addend) const {
// determine the type of the relocation
MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ?
MCSymbolRefExpr::VK_None : Target.getSymA()->getKind();
unsigned Type;
if (is64Bit()) {
if (IsPCRel) {
switch ((unsigned)Fixup.getKind()) {
default: llvm_unreachable("invalid fixup kind!");
case FK_Data_8: Type = ELF::R_X86_64_PC64; break;
case FK_Data_4: Type = ELF::R_X86_64_PC32; break;
case FK_Data_2: Type = ELF::R_X86_64_PC16; break;
case FK_PCRel_8:
assert(Modifier == MCSymbolRefExpr::VK_None);
Type = ELF::R_X86_64_PC64;
break;
case X86::reloc_signed_4byte:
case X86::reloc_riprel_4byte_movq_load:
case X86::reloc_riprel_4byte:
case FK_PCRel_4:
switch (Modifier) {
default:
llvm_unreachable("Unimplemented");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_X86_64_PC32;
break;
case MCSymbolRefExpr::VK_PLT:
Type = ELF::R_X86_64_PLT32;
break;
case MCSymbolRefExpr::VK_GOTPCREL:
Type = ELF::R_X86_64_GOTPCREL;
break;
case MCSymbolRefExpr::VK_GOTTPOFF:
Type = ELF::R_X86_64_GOTTPOFF;
break;
case MCSymbolRefExpr::VK_TLSGD:
Type = ELF::R_X86_64_TLSGD;
break;
case MCSymbolRefExpr::VK_TLSLD:
Type = ELF::R_X86_64_TLSLD;
break;
}
break;
case FK_PCRel_2:
assert(Modifier == MCSymbolRefExpr::VK_None);
Type = ELF::R_X86_64_PC16;
break;
case FK_PCRel_1:
assert(Modifier == MCSymbolRefExpr::VK_None);
Type = ELF::R_X86_64_PC8;
break;
}
} else {
switch ((unsigned)Fixup.getKind()) {
default: llvm_unreachable("invalid fixup kind!");
case FK_Data_8: Type = ELF::R_X86_64_64; break;
case X86::reloc_signed_4byte:
switch (Modifier) {
default:
llvm_unreachable("Unimplemented");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_X86_64_32S;
break;
case MCSymbolRefExpr::VK_GOT:
Type = ELF::R_X86_64_GOT32;
break;
case MCSymbolRefExpr::VK_GOTPCREL:
Type = ELF::R_X86_64_GOTPCREL;
break;
case MCSymbolRefExpr::VK_TPOFF:
Type = ELF::R_X86_64_TPOFF32;
break;
case MCSymbolRefExpr::VK_DTPOFF:
Type = ELF::R_X86_64_DTPOFF32;
break;
}
break;
case FK_Data_4:
Type = ELF::R_X86_64_32;
break;
case FK_Data_2: Type = ELF::R_X86_64_16; break;
case FK_PCRel_1:
case FK_Data_1: Type = ELF::R_X86_64_8; break;
}
}
} else {
if (IsPCRel) {
switch ((unsigned)Fixup.getKind()) {
default: llvm_unreachable("invalid fixup kind!");
case X86::reloc_global_offset_table:
Type = ELF::R_386_GOTPC;
break;
case X86::reloc_signed_4byte:
case FK_PCRel_4:
case FK_Data_4:
switch (Modifier) {
default:
llvm_unreachable("Unimplemented");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_386_PC32;
break;
case MCSymbolRefExpr::VK_PLT:
Type = ELF::R_386_PLT32;
break;
}
break;
}
} else {
switch ((unsigned)Fixup.getKind()) {
default: llvm_unreachable("invalid fixup kind!");
case X86::reloc_global_offset_table:
Type = ELF::R_386_GOTPC;
break;
// FIXME: Should we avoid selecting reloc_signed_4byte in 32 bit mode
// instead?
case X86::reloc_signed_4byte:
case FK_PCRel_4:
case FK_Data_4:
switch (Modifier) {
default:
llvm_unreachable("Unimplemented");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_386_32;
break;
case MCSymbolRefExpr::VK_GOT:
Type = ELF::R_386_GOT32;
break;
case MCSymbolRefExpr::VK_GOTOFF:
Type = ELF::R_386_GOTOFF;
break;
case MCSymbolRefExpr::VK_TLSGD:
Type = ELF::R_386_TLS_GD;
break;
case MCSymbolRefExpr::VK_TPOFF:
Type = ELF::R_386_TLS_LE_32;
break;
case MCSymbolRefExpr::VK_INDNTPOFF:
Type = ELF::R_386_TLS_IE;
break;
case MCSymbolRefExpr::VK_NTPOFF:
Type = ELF::R_386_TLS_LE;
break;
case MCSymbolRefExpr::VK_GOTNTPOFF:
Type = ELF::R_386_TLS_GOTIE;
break;
case MCSymbolRefExpr::VK_TLSLDM:
Type = ELF::R_386_TLS_LDM;
break;
case MCSymbolRefExpr::VK_DTPOFF:
Type = ELF::R_386_TLS_LDO_32;
break;
case MCSymbolRefExpr::VK_GOTTPOFF:
Type = ELF::R_386_TLS_IE_32;
break;
}
break;
case FK_Data_2: Type = ELF::R_386_16; break;
case FK_PCRel_1:
case FK_Data_1: Type = ELF::R_386_8; break;
}
}
}
return Type;
}
//===- MipsELFObjectWriter -------------------------------------------===//
MipsELFObjectWriter::MipsELFObjectWriter(MCELFObjectTargetWriter *MOTW,