Support for microMIPS branch instructions.

[oota-llvm.git] / lib / Target / Mips / MCTargetDesc / MipsELFObjectWriter.cpp

diff --git a/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp b/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
index 2091bec500824b2d636a019d4a3e7317d0463f74..83c7d4bcc3c6cc6eaac7b3c6d14a372b882ebf42 100644 (file)
--- a/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
+++ b/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
@@ -34,14 +34,14 @@ namespace {
 
   class MipsELFObjectWriter : public MCELFObjectTargetWriter {
   public:
-    MipsELFObjectWriter(bool _is64Bit, uint8_t OSABI);
+    MipsELFObjectWriter(bool _is64Bit, uint8_t OSABI,
+                        bool _isN64, bool IsLittleEndian);
 
     virtual ~MipsELFObjectWriter();
 
     virtual unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
                                   bool IsPCRel, bool IsRelocWithSymbol,
                                   int64_t Addend) const;
-    virtual unsigned getEFlags() const;
     virtual const MCSymbol *ExplicitRelSym(const MCAssembler &Asm,
                                            const MCValue &Target,
                                            const MCFragment &F,
@@ -52,25 +52,14 @@ namespace {
   };
 }
 
-MipsELFObjectWriter::MipsELFObjectWriter(bool _is64Bit, uint8_t OSABI)
+MipsELFObjectWriter::MipsELFObjectWriter(bool _is64Bit, uint8_t OSABI,
+                                         bool _isN64, bool IsLittleEndian)
   : MCELFObjectTargetWriter(_is64Bit, OSABI, ELF::EM_MIPS,
-                            /*HasRelocationAddend*/ false) {}
+                            /*HasRelocationAddend*/ (_isN64) ? true : false,
+                            /*IsN64*/ _isN64) {}
 
 MipsELFObjectWriter::~MipsELFObjectWriter() {}
 
-// FIXME: get the real EABI Version from the Subtarget class.
-unsigned MipsELFObjectWriter::getEFlags() const {
-
-  // FIXME: We can't tell if we are PIC (dynamic) or CPIC (static)
-  unsigned Flag = ELF::EF_MIPS_NOREORDER;
-
-  if (is64Bit())
-    Flag |= ELF::EF_MIPS_ARCH_64R2;
-  else
-    Flag |= ELF::EF_MIPS_ARCH_32R2;
-  return Flag;
-}
-
 const MCSymbol *MipsELFObjectWriter::ExplicitRelSym(const MCAssembler &Asm,
                                                     const MCValue &Target,
                                                     const MCFragment &F,
@@ -101,8 +90,17 @@ unsigned MipsELFObjectWriter::GetRelocType(const MCValue &Target,
   case FK_Data_4:
     Type = ELF::R_MIPS_32;
     break;
+  case FK_Data_8:
+    Type = ELF::R_MIPS_64;
+    break;
   case FK_GPRel_4:
-    Type = ELF::R_MIPS_GPREL32;
+    if (isN64()) {
+      Type = setRType((unsigned)ELF::R_MIPS_GPREL32, Type);
+      Type = setRType2((unsigned)ELF::R_MIPS_64, Type);
+      Type = setRType3((unsigned)ELF::R_MIPS_NONE, Type);
+    }
+    else
+      Type = ELF::R_MIPS_GPREL32;
     break;
   case Mips::fixup_Mips_GPREL16:
     Type = ELF::R_MIPS_GPREL16;
@@ -148,8 +146,83 @@ unsigned MipsELFObjectWriter::GetRelocType(const MCValue &Target,
   case Mips::fixup_Mips_PC16:
     Type = ELF::R_MIPS_PC16;
     break;
+  case Mips::fixup_Mips_GOT_PAGE:
+    Type = ELF::R_MIPS_GOT_PAGE;
+    break;
+  case Mips::fixup_Mips_GOT_OFST:
+    Type = ELF::R_MIPS_GOT_OFST;
+    break;
+  case Mips::fixup_Mips_GOT_DISP:
+    Type = ELF::R_MIPS_GOT_DISP;
+    break;
+  case Mips::fixup_Mips_GPOFF_HI:
+    Type = setRType((unsigned)ELF::R_MIPS_GPREL16, Type);
+    Type = setRType2((unsigned)ELF::R_MIPS_SUB, Type);
+    Type = setRType3((unsigned)ELF::R_MIPS_HI16, Type);
+    break;
+  case Mips::fixup_Mips_GPOFF_LO:
+    Type = setRType((unsigned)ELF::R_MIPS_GPREL16, Type);
+    Type = setRType2((unsigned)ELF::R_MIPS_SUB, Type);
+    Type = setRType3((unsigned)ELF::R_MIPS_LO16, Type);
+    break;
+  case Mips::fixup_Mips_HIGHER:
+    Type = ELF::R_MIPS_HIGHER;
+    break;
+  case Mips::fixup_Mips_HIGHEST:
+    Type = ELF::R_MIPS_HIGHEST;
+    break;
+  case Mips::fixup_Mips_GOT_HI16:
+    Type = ELF::R_MIPS_GOT_HI16;
+    break;
+  case Mips::fixup_Mips_GOT_LO16:
+    Type = ELF::R_MIPS_GOT_LO16;
+    break;
+  case Mips::fixup_Mips_CALL_HI16:
+    Type = ELF::R_MIPS_CALL_HI16;
+    break;
+  case Mips::fixup_Mips_CALL_LO16:
+    Type = ELF::R_MIPS_CALL_LO16;
+    break;
+  case Mips::fixup_MICROMIPS_26_S1:
+    Type = ELF::R_MICROMIPS_26_S1;
+    break;
+  case Mips::fixup_MICROMIPS_HI16:
+    Type = ELF::R_MICROMIPS_HI16;
+    break;
+  case Mips::fixup_MICROMIPS_LO16:
+    Type = ELF::R_MICROMIPS_LO16;
+    break;
+  case Mips::fixup_MICROMIPS_GOT16:
+    Type = ELF::R_MICROMIPS_GOT16;
+    break;
+  case Mips::fixup_MICROMIPS_PC16_S1:
+    Type = ELF::R_MICROMIPS_PC16_S1;
+    break;
+  case Mips::fixup_MICROMIPS_CALL16:
+    Type = ELF::R_MICROMIPS_CALL16;
+    break;
+  case Mips::fixup_MICROMIPS_GOT_DISP:
+    Type = ELF::R_MICROMIPS_GOT_DISP;
+    break;
+  case Mips::fixup_MICROMIPS_GOT_PAGE:
+    Type = ELF::R_MICROMIPS_GOT_PAGE;
+    break;
+  case Mips::fixup_MICROMIPS_GOT_OFST:
+    Type = ELF::R_MICROMIPS_GOT_OFST;
+    break;
+  case Mips::fixup_MICROMIPS_TLS_DTPREL_HI16:
+    Type = ELF::R_MICROMIPS_TLS_DTPREL_HI16;
+    break;
+  case Mips::fixup_MICROMIPS_TLS_DTPREL_LO16:
+    Type = ELF::R_MICROMIPS_TLS_DTPREL_LO16;
+    break;
+  case Mips::fixup_MICROMIPS_TLS_TPREL_HI16:
+    Type = ELF::R_MICROMIPS_TLS_TPREL_HI16;
+    break;
+  case Mips::fixup_MICROMIPS_TLS_TPREL_LO16:
+    Type = ELF::R_MICROMIPS_TLS_TPREL_LO16;
+    break;
   }
-
   return Type;
 }
 
@@ -184,10 +257,10 @@ static int CompareOffset(const RelEntry &R0, const RelEntry &R1) {
 
 void MipsELFObjectWriter::sortRelocs(const MCAssembler &Asm,
                                      std::vector<ELFRelocationEntry> &Relocs) {
-  // Call the defualt function first. Relocations are sorted in descending
+  // Call the default function first. Relocations are sorted in descending
   // order of r_offset.
   MCELFObjectTargetWriter::sortRelocs(Asm, Relocs);
-  
+
   RelLs RelocLs;
   std::vector<RelLsIter> Unmatched;
 
@@ -244,6 +317,8 @@ MCObjectWriter *llvm::createMipsELFObjectWriter(raw_ostream &OS,
                                                 uint8_t OSABI,
                                                 bool IsLittleEndian,
                                                 bool Is64Bit) {
-  MCELFObjectTargetWriter *MOTW = new MipsELFObjectWriter(Is64Bit, OSABI);
+  MCELFObjectTargetWriter *MOTW = new MipsELFObjectWriter(Is64Bit, OSABI,
+                                                (Is64Bit) ? true : false,
+                                                IsLittleEndian);
   return createELFObjectWriter(MOTW, OS, IsLittleEndian);
 }