Update aosp/master LLVM for rebase to r230699.

Change-Id: I2b5be30509658cb8266be782de0ab24f9099f9b9

1 files changed, 76 insertions, 333 deletions

diff --git a/lib/Object/ELFYAML.cpp b/lib/Object/ELFYAML.cpp
index f513c11..cce05cf 100644
--- a/lib/Object/ELFYAML.cpp
+++ b/lib/Object/ELFYAML.cpp
@@ -30,6 +30,7 @@ ScalarEnumerationTraits<ELFYAML::ELF_ET>::enumeration(IO &IO,
   ECase(ET_DYN)
   ECase(ET_CORE)
 #undef ECase
+  IO.enumFallback<Hex16>(Value);
 }
 
 void
@@ -414,354 +415,44 @@ void ScalarBitSetTraits<ELFYAML::ELF_STO>::bitset(IO &IO,
 #undef BCaseMask
 }
 
+void ScalarEnumerationTraits<ELFYAML::ELF_RSS>::enumeration(
+    IO &IO, ELFYAML::ELF_RSS &Value) {
+#define ECase(X) IO.enumCase(Value, #X, ELF::X);
+  ECase(RSS_UNDEF)
+  ECase(RSS_GP)
+  ECase(RSS_GP0)
+  ECase(RSS_LOC)
+#undef ECase
+}
+
 void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
     IO &IO, ELFYAML::ELF_REL &Value) {
   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
   assert(Object && "The IO context is not initialized");
-#define ECase(X) IO.enumCase(Value, #X, ELF::X);
+#define ELF_RELOC(X, Y) IO.enumCase(Value, #X, ELF::X);
   switch (Object->Header.Machine) {
   case ELF::EM_X86_64:
-    ECase(R_X86_64_NONE)
-    ECase(R_X86_64_64)
-    ECase(R_X86_64_PC32)
-    ECase(R_X86_64_GOT32)
-    ECase(R_X86_64_PLT32)
-    ECase(R_X86_64_COPY)
-    ECase(R_X86_64_GLOB_DAT)
-    ECase(R_X86_64_JUMP_SLOT)
-    ECase(R_X86_64_RELATIVE)
-    ECase(R_X86_64_GOTPCREL)
-    ECase(R_X86_64_32)
-    ECase(R_X86_64_32S)
-    ECase(R_X86_64_16)
-    ECase(R_X86_64_PC16)
-    ECase(R_X86_64_8)
-    ECase(R_X86_64_PC8)
-    ECase(R_X86_64_DTPMOD64)
-    ECase(R_X86_64_DTPOFF64)
-    ECase(R_X86_64_TPOFF64)
-    ECase(R_X86_64_TLSGD)
-    ECase(R_X86_64_TLSLD)
-    ECase(R_X86_64_DTPOFF32)
-    ECase(R_X86_64_GOTTPOFF)
-    ECase(R_X86_64_TPOFF32)
-    ECase(R_X86_64_PC64)
-    ECase(R_X86_64_GOTOFF64)
-    ECase(R_X86_64_GOTPC32)
-    ECase(R_X86_64_GOT64)
-    ECase(R_X86_64_GOTPCREL64)
-    ECase(R_X86_64_GOTPC64)
-    ECase(R_X86_64_GOTPLT64)
-    ECase(R_X86_64_PLTOFF64)
-    ECase(R_X86_64_SIZE32)
-    ECase(R_X86_64_SIZE64)
-    ECase(R_X86_64_GOTPC32_TLSDESC)
-    ECase(R_X86_64_TLSDESC_CALL)
-    ECase(R_X86_64_TLSDESC)
-    ECase(R_X86_64_IRELATIVE)
+#include "llvm/Support/ELFRelocs/x86_64.def"
     break;
   case ELF::EM_MIPS:
-    ECase(R_MIPS_NONE)
-    ECase(R_MIPS_16)
-    ECase(R_MIPS_32)
-    ECase(R_MIPS_REL32)
-    ECase(R_MIPS_26)
-    ECase(R_MIPS_HI16)
-    ECase(R_MIPS_LO16)
-    ECase(R_MIPS_GPREL16)
-    ECase(R_MIPS_LITERAL)
-    ECase(R_MIPS_GOT16)
-    ECase(R_MIPS_PC16)
-    ECase(R_MIPS_CALL16)
-    ECase(R_MIPS_GPREL32)
-    ECase(R_MIPS_UNUSED1)
-    ECase(R_MIPS_UNUSED2)
-    ECase(R_MIPS_SHIFT5)
-    ECase(R_MIPS_SHIFT6)
-    ECase(R_MIPS_64)
-    ECase(R_MIPS_GOT_DISP)
-    ECase(R_MIPS_GOT_PAGE)
-    ECase(R_MIPS_GOT_OFST)
-    ECase(R_MIPS_GOT_HI16)
-    ECase(R_MIPS_GOT_LO16)
-    ECase(R_MIPS_SUB)
-    ECase(R_MIPS_INSERT_A)
-    ECase(R_MIPS_INSERT_B)
-    ECase(R_MIPS_DELETE)
-    ECase(R_MIPS_HIGHER)
-    ECase(R_MIPS_HIGHEST)
-    ECase(R_MIPS_CALL_HI16)
-    ECase(R_MIPS_CALL_LO16)
-    ECase(R_MIPS_SCN_DISP)
-    ECase(R_MIPS_REL16)
-    ECase(R_MIPS_ADD_IMMEDIATE)
-    ECase(R_MIPS_PJUMP)
-    ECase(R_MIPS_RELGOT)
-    ECase(R_MIPS_JALR)
-    ECase(R_MIPS_TLS_DTPMOD32)
-    ECase(R_MIPS_TLS_DTPREL32)
-    ECase(R_MIPS_TLS_DTPMOD64)
-    ECase(R_MIPS_TLS_DTPREL64)
-    ECase(R_MIPS_TLS_GD)
-    ECase(R_MIPS_TLS_LDM)
-    ECase(R_MIPS_TLS_DTPREL_HI16)
-    ECase(R_MIPS_TLS_DTPREL_LO16)
-    ECase(R_MIPS_TLS_GOTTPREL)
-    ECase(R_MIPS_TLS_TPREL32)
-    ECase(R_MIPS_TLS_TPREL64)
-    ECase(R_MIPS_TLS_TPREL_HI16)
-    ECase(R_MIPS_TLS_TPREL_LO16)
-    ECase(R_MIPS_GLOB_DAT)
-    ECase(R_MIPS_PC21_S2)
-    ECase(R_MIPS_PC26_S2)
-    ECase(R_MIPS_PC18_S3)
-    ECase(R_MIPS_PC19_S2)
-    ECase(R_MIPS_PCHI16)
-    ECase(R_MIPS_PCLO16)
-    ECase(R_MIPS16_GOT16)
-    ECase(R_MIPS16_HI16)
-    ECase(R_MIPS16_LO16)
-    ECase(R_MIPS_COPY)
-    ECase(R_MIPS_JUMP_SLOT)
-    ECase(R_MICROMIPS_26_S1)
-    ECase(R_MICROMIPS_HI16)
-    ECase(R_MICROMIPS_LO16)
-    ECase(R_MICROMIPS_GOT16)
-    ECase(R_MICROMIPS_PC16_S1)
-    ECase(R_MICROMIPS_CALL16)
-    ECase(R_MICROMIPS_GOT_DISP)
-    ECase(R_MICROMIPS_GOT_PAGE)
-    ECase(R_MICROMIPS_GOT_OFST)
-    ECase(R_MICROMIPS_TLS_GD)
-    ECase(R_MICROMIPS_TLS_LDM)
-    ECase(R_MICROMIPS_TLS_DTPREL_HI16)
-    ECase(R_MICROMIPS_TLS_DTPREL_LO16)
-    ECase(R_MICROMIPS_TLS_TPREL_HI16)
-    ECase(R_MICROMIPS_TLS_TPREL_LO16)
-    ECase(R_MIPS_NUM)
-    ECase(R_MIPS_PC32)
+#include "llvm/Support/ELFRelocs/Mips.def"
     break;
   case ELF::EM_HEXAGON:
-    ECase(R_HEX_NONE)
-    ECase(R_HEX_B22_PCREL)
-    ECase(R_HEX_B15_PCREL)
-    ECase(R_HEX_B7_PCREL)
-    ECase(R_HEX_LO16)
-    ECase(R_HEX_HI16)
-    ECase(R_HEX_32)
-    ECase(R_HEX_16)
-    ECase(R_HEX_8)
-    ECase(R_HEX_GPREL16_0)
-    ECase(R_HEX_GPREL16_1)
-    ECase(R_HEX_GPREL16_2)
-    ECase(R_HEX_GPREL16_3)
-    ECase(R_HEX_HL16)
-    ECase(R_HEX_B13_PCREL)
-    ECase(R_HEX_B9_PCREL)
-    ECase(R_HEX_B32_PCREL_X)
-    ECase(R_HEX_32_6_X)
-    ECase(R_HEX_B22_PCREL_X)
-    ECase(R_HEX_B15_PCREL_X)
-    ECase(R_HEX_B13_PCREL_X)
-    ECase(R_HEX_B9_PCREL_X)
-    ECase(R_HEX_B7_PCREL_X)
-    ECase(R_HEX_16_X)
-    ECase(R_HEX_12_X)
-    ECase(R_HEX_11_X)
-    ECase(R_HEX_10_X)
-    ECase(R_HEX_9_X)
-    ECase(R_HEX_8_X)
-    ECase(R_HEX_7_X)
-    ECase(R_HEX_6_X)
-    ECase(R_HEX_32_PCREL)
-    ECase(R_HEX_COPY)
-    ECase(R_HEX_GLOB_DAT)
-    ECase(R_HEX_JMP_SLOT)
-    ECase(R_HEX_RELATIVE)
-    ECase(R_HEX_PLT_B22_PCREL)
-    ECase(R_HEX_GOTREL_LO16)
-    ECase(R_HEX_GOTREL_HI16)
-    ECase(R_HEX_GOTREL_32)
-    ECase(R_HEX_GOT_LO16)
-    ECase(R_HEX_GOT_HI16)
-    ECase(R_HEX_GOT_32)
-    ECase(R_HEX_GOT_16)
-    ECase(R_HEX_DTPMOD_32)
-    ECase(R_HEX_DTPREL_LO16)
-    ECase(R_HEX_DTPREL_HI16)
-    ECase(R_HEX_DTPREL_32)
-    ECase(R_HEX_DTPREL_16)
-    ECase(R_HEX_GD_PLT_B22_PCREL)
-    ECase(R_HEX_GD_GOT_LO16)
-    ECase(R_HEX_GD_GOT_HI16)
-    ECase(R_HEX_GD_GOT_32)
-    ECase(R_HEX_GD_GOT_16)
-    ECase(R_HEX_IE_LO16)
-    ECase(R_HEX_IE_HI16)
-    ECase(R_HEX_IE_32)
-    ECase(R_HEX_IE_GOT_LO16)
-    ECase(R_HEX_IE_GOT_HI16)
-    ECase(R_HEX_IE_GOT_32)
-    ECase(R_HEX_IE_GOT_16)
-    ECase(R_HEX_TPREL_LO16)
-    ECase(R_HEX_TPREL_HI16)
-    ECase(R_HEX_TPREL_32)
-    ECase(R_HEX_TPREL_16)
-    ECase(R_HEX_6_PCREL_X)
-    ECase(R_HEX_GOTREL_32_6_X)
-    ECase(R_HEX_GOTREL_16_X)
-    ECase(R_HEX_GOTREL_11_X)
-    ECase(R_HEX_GOT_32_6_X)
-    ECase(R_HEX_GOT_16_X)
-    ECase(R_HEX_GOT_11_X)
-    ECase(R_HEX_DTPREL_32_6_X)
-    ECase(R_HEX_DTPREL_16_X)
-    ECase(R_HEX_DTPREL_11_X)
-    ECase(R_HEX_GD_GOT_32_6_X)
-    ECase(R_HEX_GD_GOT_16_X)
-    ECase(R_HEX_GD_GOT_11_X)
-    ECase(R_HEX_IE_32_6_X)
-    ECase(R_HEX_IE_16_X)
-    ECase(R_HEX_IE_GOT_32_6_X)
-    ECase(R_HEX_IE_GOT_16_X)
-    ECase(R_HEX_IE_GOT_11_X)
-    ECase(R_HEX_TPREL_32_6_X)
-    ECase(R_HEX_TPREL_16_X)
-    ECase(R_HEX_TPREL_11_X)
+#include "llvm/Support/ELFRelocs/Hexagon.def"
     break;
   case ELF::EM_386:
-    ECase(R_386_NONE)
-    ECase(R_386_32)
-    ECase(R_386_PC32)
-    ECase(R_386_GOT32)
-    ECase(R_386_PLT32)
-    ECase(R_386_COPY)
-    ECase(R_386_GLOB_DAT)
-    ECase(R_386_JUMP_SLOT)
-    ECase(R_386_RELATIVE)
-    ECase(R_386_GOTOFF)
-    ECase(R_386_GOTPC)
-    ECase(R_386_32PLT)
-    ECase(R_386_TLS_TPOFF)
-    ECase(R_386_TLS_IE)
-    ECase(R_386_TLS_GOTIE)
-    ECase(R_386_TLS_LE)
-    ECase(R_386_TLS_GD)
-    ECase(R_386_TLS_LDM)
-    ECase(R_386_16)
-    ECase(R_386_PC16)
-    ECase(R_386_8)
-    ECase(R_386_PC8)
-    ECase(R_386_TLS_GD_32)
-    ECase(R_386_TLS_GD_PUSH)
-    ECase(R_386_TLS_GD_CALL)
-    ECase(R_386_TLS_GD_POP)
-    ECase(R_386_TLS_LDM_32)
-    ECase(R_386_TLS_LDM_PUSH)
-    ECase(R_386_TLS_LDM_CALL)
-    ECase(R_386_TLS_LDM_POP)
-    ECase(R_386_TLS_LDO_32)
-    ECase(R_386_TLS_IE_32)
-    ECase(R_386_TLS_LE_32)
-    ECase(R_386_TLS_DTPMOD32)
-    ECase(R_386_TLS_DTPOFF32)
-    ECase(R_386_TLS_TPOFF32)
-    ECase(R_386_TLS_GOTDESC)
-    ECase(R_386_TLS_DESC_CALL)
-    ECase(R_386_TLS_DESC)
-    ECase(R_386_IRELATIVE)
-    ECase(R_386_NUM)
+#include "llvm/Support/ELFRelocs/i386.def"
     break;
   case ELF::EM_AARCH64:
-    ECase(R_AARCH64_NONE)
-    ECase(R_AARCH64_ABS64)
-    ECase(R_AARCH64_ABS32)
-    ECase(R_AARCH64_ABS16)
-    ECase(R_AARCH64_PREL64)
-    ECase(R_AARCH64_PREL32)
-    ECase(R_AARCH64_PREL16)
-    ECase(R_AARCH64_MOVW_UABS_G0)
-    ECase(R_AARCH64_MOVW_UABS_G0_NC)
-    ECase(R_AARCH64_MOVW_UABS_G1)
-    ECase(R_AARCH64_MOVW_UABS_G1_NC)
-    ECase(R_AARCH64_MOVW_UABS_G2)
-    ECase(R_AARCH64_MOVW_UABS_G2_NC)
-    ECase(R_AARCH64_MOVW_UABS_G3)
-    ECase(R_AARCH64_MOVW_SABS_G0)
-    ECase(R_AARCH64_MOVW_SABS_G1)
-    ECase(R_AARCH64_MOVW_SABS_G2)
-    ECase(R_AARCH64_LD_PREL_LO19)
-    ECase(R_AARCH64_ADR_PREL_LO21)
-    ECase(R_AARCH64_ADR_PREL_PG_HI21)
-    ECase(R_AARCH64_ADD_ABS_LO12_NC)
-    ECase(R_AARCH64_LDST8_ABS_LO12_NC)
-    ECase(R_AARCH64_TSTBR14)
-    ECase(R_AARCH64_CONDBR19)
-    ECase(R_AARCH64_JUMP26)
-    ECase(R_AARCH64_CALL26)
-    ECase(R_AARCH64_LDST16_ABS_LO12_NC)
-    ECase(R_AARCH64_LDST32_ABS_LO12_NC)
-    ECase(R_AARCH64_LDST64_ABS_LO12_NC)
-    ECase(R_AARCH64_LDST128_ABS_LO12_NC)
-    ECase(R_AARCH64_GOTREL64)
-    ECase(R_AARCH64_GOTREL32)
-    ECase(R_AARCH64_ADR_GOT_PAGE)
-    ECase(R_AARCH64_LD64_GOT_LO12_NC)
-    ECase(R_AARCH64_TLSLD_MOVW_DTPREL_G2)
-    ECase(R_AARCH64_TLSLD_MOVW_DTPREL_G1)
-    ECase(R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC)
-    ECase(R_AARCH64_TLSLD_MOVW_DTPREL_G0)
-    ECase(R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC)
-    ECase(R_AARCH64_TLSLD_ADD_DTPREL_HI12)
-    ECase(R_AARCH64_TLSLD_ADD_DTPREL_LO12)
-    ECase(R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC)
-    ECase(R_AARCH64_TLSLD_LDST8_DTPREL_LO12)
-    ECase(R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC)
-    ECase(R_AARCH64_TLSLD_LDST16_DTPREL_LO12)
-    ECase(R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC)
-    ECase(R_AARCH64_TLSLD_LDST32_DTPREL_LO12)
-    ECase(R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC)
-    ECase(R_AARCH64_TLSLD_LDST64_DTPREL_LO12)
-    ECase(R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC)
-    ECase(R_AARCH64_TLSIE_MOVW_GOTTPREL_G1)
-    ECase(R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC)
-    ECase(R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21)
-    ECase(R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC)
-    ECase(R_AARCH64_TLSIE_LD_GOTTPREL_PREL19)
-    ECase(R_AARCH64_TLSLE_MOVW_TPREL_G2)
-    ECase(R_AARCH64_TLSLE_MOVW_TPREL_G1)
-    ECase(R_AARCH64_TLSLE_MOVW_TPREL_G1_NC)
-    ECase(R_AARCH64_TLSLE_MOVW_TPREL_G0)
-    ECase(R_AARCH64_TLSLE_MOVW_TPREL_G0_NC)
-    ECase(R_AARCH64_TLSLE_ADD_TPREL_HI12)
-    ECase(R_AARCH64_TLSLE_ADD_TPREL_LO12)
-    ECase(R_AARCH64_TLSLE_ADD_TPREL_LO12_NC)
-    ECase(R_AARCH64_TLSLE_LDST8_TPREL_LO12)
-    ECase(R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC)
-    ECase(R_AARCH64_TLSLE_LDST16_TPREL_LO12)
-    ECase(R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC)
-    ECase(R_AARCH64_TLSLE_LDST32_TPREL_LO12)
-    ECase(R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC)
-    ECase(R_AARCH64_TLSLE_LDST64_TPREL_LO12)
-    ECase(R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC)
-    ECase(R_AARCH64_TLSDESC_ADR_PAGE)
-    ECase(R_AARCH64_TLSDESC_LD64_LO12_NC)
-    ECase(R_AARCH64_TLSDESC_ADD_LO12_NC)
-    ECase(R_AARCH64_TLSDESC_CALL)
-    ECase(R_AARCH64_COPY)
-    ECase(R_AARCH64_GLOB_DAT)
-    ECase(R_AARCH64_JUMP_SLOT)
-    ECase(R_AARCH64_RELATIVE)
-    ECase(R_AARCH64_TLS_DTPREL64)
-    ECase(R_AARCH64_TLS_DTPMOD64)
-    ECase(R_AARCH64_TLS_TPREL64)
-    ECase(R_AARCH64_TLSDESC)
-    ECase(R_AARCH64_IRELATIVE)
+#include "llvm/Support/ELFRelocs/AArch64.def"
+    break;
+  case ELF::EM_ARM:
+#include "llvm/Support/ELFRelocs/ARM.def"
     break;
   default:
     llvm_unreachable("Unsupported architecture");
   }
-#undef ECase
+#undef ELF_RELOC
 }
 
 void MappingTraits<ELFYAML::FileHeader>::mapping(IO &IO,
@@ -815,6 +506,7 @@ static void commonSectionMapping(IO &IO, ELFYAML::Section &Section) {
   IO.mapOptional("Address", Section.Address, Hex64(0));
   IO.mapOptional("Link", Section.Link, StringRef());
   IO.mapOptional("AddressAlign", Section.AddressAlign, Hex64(0));
+  IO.mapOptional("Info", Section.Info, StringRef());
 }
 
 static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
@@ -825,10 +517,19 @@ static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
 
 static void sectionMapping(IO &IO, ELFYAML::RelocationSection &Section) {
   commonSectionMapping(IO, Section);
-  IO.mapOptional("Info", Section.Info, StringRef());
   IO.mapOptional("Relocations", Section.Relocations);
 }
 
+static void groupSectionMapping(IO &IO, ELFYAML::Group &group) {
+  commonSectionMapping(IO, group);
+  IO.mapRequired("Members", group.Members);
+}
+
+void MappingTraits<ELFYAML::SectionOrType>::mapping(
+    IO &IO, ELFYAML::SectionOrType &sectionOrType) {
+  IO.mapRequired("SectionOrType", sectionOrType.sectionNameOrType);
+}
+
 void MappingTraits<std::unique_ptr<ELFYAML::Section>>::mapping(
     IO &IO, std::unique_ptr<ELFYAML::Section> &Section) {
   ELFYAML::ELF_SHT sectionType;
@@ -844,6 +545,11 @@ void MappingTraits<std::unique_ptr<ELFYAML::Section>>::mapping(
       Section.reset(new ELFYAML::RelocationSection());
     sectionMapping(IO, *cast<ELFYAML::RelocationSection>(Section.get()));
     break;
+  case ELF::SHT_GROUP:
+    if (!IO.outputting())
+      Section.reset(new ELFYAML::Group());
+    groupSectionMapping(IO, *cast<ELFYAML::Group>(Section.get()));
+    break;
   default:
     if (!IO.outputting())
       Section.reset(new ELFYAML::RawContentSection());
@@ -859,12 +565,49 @@ StringRef MappingTraits<std::unique_ptr<ELFYAML::Section>>::validate(
   return "Section size must be greater or equal to the content size";
 }
 
+namespace {
+struct NormalizedMips64RelType {
+  NormalizedMips64RelType(IO &)
+      : Type(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
+        Type2(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
+        Type3(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
+        SpecSym(ELFYAML::ELF_REL(ELF::RSS_UNDEF)) {}
+  NormalizedMips64RelType(IO &, ELFYAML::ELF_REL Original)
+      : Type(Original & 0xFF), Type2(Original >> 8 & 0xFF),
+        Type3(Original >> 16 & 0xFF), SpecSym(Original >> 24 & 0xFF) {}
+
+  ELFYAML::ELF_REL denormalize(IO &) {
+    ELFYAML::ELF_REL Res = Type | Type2 << 8 | Type3 << 16 | SpecSym << 24;
+    return Res;
+  }
+
+  ELFYAML::ELF_REL Type;
+  ELFYAML::ELF_REL Type2;
+  ELFYAML::ELF_REL Type3;
+  ELFYAML::ELF_RSS SpecSym;
+};
+}
+
 void MappingTraits<ELFYAML::Relocation>::mapping(IO &IO,
                                                  ELFYAML::Relocation &Rel) {
+  const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
+  assert(Object && "The IO context is not initialized");
+
   IO.mapRequired("Offset", Rel.Offset);
   IO.mapRequired("Symbol", Rel.Symbol);
-  IO.mapRequired("Type", Rel.Type);
-  IO.mapOptional("Addend", Rel.Addend);
+
+  if (Object->Header.Machine == ELFYAML::ELF_EM(ELF::EM_MIPS) &&
+      Object->Header.Class == ELFYAML::ELF_ELFCLASS(ELF::ELFCLASS64)) {
+    MappingNormalization<NormalizedMips64RelType, ELFYAML::ELF_REL> Key(
+        IO, Rel.Type);
+    IO.mapRequired("Type", Key->Type);
+    IO.mapOptional("Type2", Key->Type2, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
+    IO.mapOptional("Type3", Key->Type3, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
+    IO.mapOptional("SpecSym", Key->SpecSym, ELFYAML::ELF_RSS(ELF::RSS_UNDEF));
+  } else
+    IO.mapRequired("Type", Rel.Type);
+
+  IO.mapOptional("Addend", Rel.Addend, (int64_t)0);
 }
 
 void MappingTraits<ELFYAML::Object>::mapping(IO &IO, ELFYAML::Object &Object) {