From 6943f62a418bc48c762385013c9d5acb4ce3fa15 Mon Sep 17 00:00:00 2001
From: Simon Atanasyan <simon@atanasyan.com>
Date: Tue, 20 May 2014 09:27:49 +0000
Subject: [PATCH] [Mips] Add more relocation types and MIPS specific e_flags
 constants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209201 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Support/ELF.h       |  9 ++++++++-
 lib/Object/ELF.cpp               | 10 ++++++++++
 lib/Object/ELFYAML.cpp           | 11 +++++++++++
 tools/llvm-readobj/ELFDumper.cpp |  4 +++-
 4 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/include/llvm/Support/ELF.h b/include/llvm/Support/ELF.h
index 95df66538e0..0b3e55b9152 100644
--- a/include/llvm/Support/ELF.h
+++ b/include/llvm/Support/ELF.h
@@ -824,11 +824,12 @@ enum : unsigned {
   EF_MIPS_ARCH_64   = 0x60000000, // MIPS64 instruction set per linux not elf.h
   EF_MIPS_ARCH_32R2 = 0x70000000, // mips32r2
   EF_MIPS_ARCH_64R2 = 0x80000000, // mips64r2
+  EF_MIPS_ARCH_32R6 = 0x90000000, // mips32r6
+  EF_MIPS_ARCH_64R6 = 0xa0000000, // mips64r6
   EF_MIPS_ARCH      = 0xf0000000  // Mask for applying EF_MIPS_ARCH_ variant
 };
 
 // ELF Relocation types for Mips
-// .
 enum {
   R_MIPS_NONE              =  0,
   R_MIPS_16                =  1,
@@ -881,6 +882,12 @@ enum {
   R_MIPS_TLS_TPREL_HI16    = 49,
   R_MIPS_TLS_TPREL_LO16    = 50,
   R_MIPS_GLOB_DAT          = 51,
+  R_MIPS_PC21_S2           = 60,
+  R_MIPS_PC26_S2           = 61,
+  R_MIPS_PC18_S3           = 62,
+  R_MIPS_PC19_S2           = 63,
+  R_MIPS_PCHI16            = 64,
+  R_MIPS_PCLO16            = 65,
   R_MIPS16_GOT16           = 102,
   R_MIPS16_HI16            = 104,
   R_MIPS16_LO16            = 105,
diff --git a/lib/Object/ELF.cpp b/lib/Object/ELF.cpp
index e9a88bfd03f..df4dd5ea7c7 100644
--- a/lib/Object/ELF.cpp
+++ b/lib/Object/ELF.cpp
@@ -159,6 +159,15 @@ StringRef getELFRelocationTypeName(uint32_t Machine, uint32_t Type) {
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_HI16);
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_LO16);
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GLOB_DAT);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC21_S2);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC26_S2);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC18_S3);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC19_S2);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PCHI16);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PCLO16);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS16_GOT16);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS16_HI16);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS16_LO16);
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_COPY);
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JUMP_SLOT);
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_26_S1);
@@ -177,6 +186,7 @@ StringRef getELFRelocationTypeName(uint32_t Machine, uint32_t Type) {
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_TLS_TPREL_HI16);
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_TLS_TPREL_LO16);
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NUM);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC32);
     default:
       break;
     }
diff --git a/lib/Object/ELFYAML.cpp b/lib/Object/ELFYAML.cpp
index 547720ddc32..8329853340c 100644
--- a/lib/Object/ELFYAML.cpp
+++ b/lib/Object/ELFYAML.cpp
@@ -275,6 +275,8 @@ void ScalarBitSetTraits<ELFYAML::ELF_EF>::bitset(IO &IO,
     BCase(EF_MIPS_ARCH_64)
     BCase(EF_MIPS_ARCH_32R2)
     BCase(EF_MIPS_ARCH_64R2)
+    BCase(EF_MIPS_ARCH_32R6)
+    BCase(EF_MIPS_ARCH_64R6)
     break;
   case ELF::EM_HEXAGON:
     BCase(EF_HEXAGON_MACH_V2)
@@ -462,6 +464,15 @@ void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
     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)
diff --git a/tools/llvm-readobj/ELFDumper.cpp b/tools/llvm-readobj/ELFDumper.cpp
index 5b3302c4302..de4c2079012 100644
--- a/tools/llvm-readobj/ELFDumper.cpp
+++ b/tools/llvm-readobj/ELFDumper.cpp
@@ -455,7 +455,9 @@ static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
   LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
   LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
   LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
-  LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2)
+  LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
+  LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
+  LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
 };
 
 template<class ELFT>
-- 
2.11.0