Support for microMIPS relocations 1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193247 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 118 insertions, 13 deletions

diff --git a/lib/Object/ELF.cpp b/lib/Object/ELF.cpp
index ed6bb57..37e145d 100644
--- a/lib/Object/ELF.cpp
+++ b/lib/Object/ELF.cpp
@@ -161,6 +161,17 @@ StringRef getELFRelocationTypeName(uint32_t Machine, uint32_t Type) {
       LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GLOB_DAT);
       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_HI16);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_LO16);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_GOT16);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_CALL16);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_GOT_DISP);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_GOT_PAGE);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_GOT_OFST);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_TLS_DTPREL_HI16);
+      LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MICROMIPS_TLS_DTPREL_LO16);
+      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);
     default:
       break;
diff --git a/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp b/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp
index b2c8dd7..ae70e25 100644
--- a/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp
+++ b/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp
@@ -45,6 +45,10 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) {
   case Mips::fixup_Mips_GOT_DISP:
   case Mips::fixup_Mips_GOT_LO16:
   case Mips::fixup_Mips_CALL_LO16:
+  case Mips::fixup_MICROMIPS_LO16:
+  case Mips::fixup_MICROMIPS_GOT_PAGE:
+  case Mips::fixup_MICROMIPS_GOT_OFST:
+  case Mips::fixup_MICROMIPS_GOT_DISP:
     break;
   case Mips::fixup_Mips_PC16:
     // So far we are only using this type for branches.
@@ -65,6 +69,7 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) {
   case Mips::fixup_Mips_GOT_Local:
   case Mips::fixup_Mips_GOT_HI16:
   case Mips::fixup_Mips_CALL_HI16:
+  case Mips::fixup_MICROMIPS_HI16:
     // Get the 2nd 16-bits. Also add 1 if bit 15 is 1.
     Value = ((Value + 0x8000) >> 16) & 0xffff;
     break;
@@ -188,7 +193,18 @@ public:
       { "fixup_Mips_GOT_HI16",     0,     16,   0 },
       { "fixup_Mips_GOT_LO16",     0,     16,   0 },
       { "fixup_Mips_CALL_HI16",    0,     16,   0 },
-      { "fixup_Mips_CALL_LO16",    0,     16,   0 }
+      { "fixup_Mips_CALL_LO16",    0,     16,   0 },
+      { "fixup_MICROMIPS_HI16",    0,     16,   0 },
+      { "fixup_MICROMIPS_LO16",    0,     16,   0 },
+      { "fixup_MICROMIPS_GOT16",   0,     16,   0 },
+      { "fixup_MICROMIPS_CALL16",  0,     16,   0 },
+      { "fixup_MICROMIPS_GOT_DISP",        0,     16,   0 },
+      { "fixup_MICROMIPS_GOT_PAGE",        0,     16,   0 },
+      { "fixup_MICROMIPS_GOT_OFST",        0,     16,   0 },
+      { "fixup_MICROMIPS_TLS_DTPREL_HI16", 0,     16,   0 },
+      { "fixup_MICROMIPS_TLS_DTPREL_LO16", 0,     16,   0 },
+      { "fixup_MICROMIPS_TLS_TPREL_HI16",  0,     16,   0 },
+      { "fixup_MICROMIPS_TLS_TPREL_LO16",  0,     16,   0 }
     };
 
     if (Kind < FirstTargetFixupKind)
diff --git a/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp b/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
index 6471b51..dc5aabc 100644
--- a/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
+++ b/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
@@ -183,6 +183,39 @@ unsigned MipsELFObjectWriter::GetRelocType(const MCValue &Target,
   case Mips::fixup_Mips_CALL_LO16:
     Type = ELF::R_MIPS_CALL_LO16;
     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_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;
 }
diff --git a/lib/Target/Mips/MCTargetDesc/MipsFixupKinds.h b/lib/Target/Mips/MCTargetDesc/MipsFixupKinds.h
index f963900..5c5b5ed 100644
--- a/lib/Target/Mips/MCTargetDesc/MipsFixupKinds.h
+++ b/lib/Target/Mips/MCTargetDesc/MipsFixupKinds.h
@@ -128,6 +128,39 @@ namespace Mips {
     // resulting in - R_MIPS_CALL_LO16
     fixup_Mips_CALL_LO16,
 
+    // resulting in - R_MICROMIPS_HI16
+    fixup_MICROMIPS_HI16,
+
+    // resulting in - R_MICROMIPS_LO16
+    fixup_MICROMIPS_LO16,
+
+    // resulting in - R_MICROMIPS_GOT16
+    fixup_MICROMIPS_GOT16,
+
+    // resulting in - R_MICROMIPS_CALL16
+    fixup_MICROMIPS_CALL16,
+
+    // resulting in - R_MICROMIPS_GOT_DISP
+    fixup_MICROMIPS_GOT_DISP,
+
+    // resulting in - R_MICROMIPS_GOT_PAGE
+    fixup_MICROMIPS_GOT_PAGE,
+
+    // resulting in - R_MICROMIPS_GOT_OFST
+    fixup_MICROMIPS_GOT_OFST,
+
+    // resulting in - R_MICROMIPS_TLS_DTPREL_HI16
+    fixup_MICROMIPS_TLS_DTPREL_HI16,
+
+    // resulting in - R_MICROMIPS_TLS_DTPREL_LO16
+    fixup_MICROMIPS_TLS_DTPREL_LO16,
+
+    // resulting in - R_MICROMIPS_TLS_TPREL_HI16
+    fixup_MICROMIPS_TLS_TPREL_HI16,
+
+    // resulting in - R_MICROMIPS_TLS_TPREL_LO16
+    fixup_MICROMIPS_TLS_TPREL_LO16,
+
     // Marker
     LastTargetFixupKind,
     NumTargetFixupKinds = LastTargetFixupKind - FirstTargetFixupKind
diff --git a/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp b/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp
index 3dfe428..53558ac 100644
--- a/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp
+++ b/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp
@@ -320,31 +320,39 @@ getExprOpValue(const MCExpr *Expr,SmallVectorImpl<MCFixup> &Fixups) const {
     FixupKind = Mips::fixup_Mips_GPOFF_LO;
     break;
   case MCSymbolRefExpr::VK_Mips_GOT_PAGE :
-    FixupKind = Mips::fixup_Mips_GOT_PAGE;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT_PAGE
+                            : Mips::fixup_Mips_GOT_PAGE;
     break;
   case MCSymbolRefExpr::VK_Mips_GOT_OFST :
-    FixupKind = Mips::fixup_Mips_GOT_OFST;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT_OFST
+                            : Mips::fixup_Mips_GOT_OFST;
     break;
   case MCSymbolRefExpr::VK_Mips_GOT_DISP :
-    FixupKind = Mips::fixup_Mips_GOT_DISP;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT_DISP
+                            : Mips::fixup_Mips_GOT_DISP;
     break;
   case MCSymbolRefExpr::VK_Mips_GPREL:
     FixupKind = Mips::fixup_Mips_GPREL16;
     break;
   case MCSymbolRefExpr::VK_Mips_GOT_CALL:
-    FixupKind = Mips::fixup_Mips_CALL16;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_CALL16
+                            : Mips::fixup_Mips_CALL16;
     break;
   case MCSymbolRefExpr::VK_Mips_GOT16:
-    FixupKind = Mips::fixup_Mips_GOT_Global;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT16
+                            : Mips::fixup_Mips_GOT_Global;
     break;
   case MCSymbolRefExpr::VK_Mips_GOT:
-    FixupKind = Mips::fixup_Mips_GOT_Local;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT16
+                            : Mips::fixup_Mips_GOT_Local;
     break;
   case MCSymbolRefExpr::VK_Mips_ABS_HI:
-    FixupKind = Mips::fixup_Mips_HI16;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_HI16
+                            : Mips::fixup_Mips_HI16;
     break;
   case MCSymbolRefExpr::VK_Mips_ABS_LO:
-    FixupKind = Mips::fixup_Mips_LO16;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_LO16
+                            : Mips::fixup_Mips_LO16;
     break;
   case MCSymbolRefExpr::VK_Mips_TLSGD:
     FixupKind = Mips::fixup_Mips_TLSGD;
@@ -353,19 +361,23 @@ getExprOpValue(const MCExpr *Expr,SmallVectorImpl<MCFixup> &Fixups) const {
     FixupKind = Mips::fixup_Mips_TLSLDM;
     break;
   case MCSymbolRefExpr::VK_Mips_DTPREL_HI:
-    FixupKind = Mips::fixup_Mips_DTPREL_HI;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_DTPREL_HI16
+                            : Mips::fixup_Mips_DTPREL_HI;
     break;
   case MCSymbolRefExpr::VK_Mips_DTPREL_LO:
-    FixupKind = Mips::fixup_Mips_DTPREL_LO;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_DTPREL_LO16
+                            : Mips::fixup_Mips_DTPREL_LO;
     break;
   case MCSymbolRefExpr::VK_Mips_GOTTPREL:
     FixupKind = Mips::fixup_Mips_GOTTPREL;
     break;
   case MCSymbolRefExpr::VK_Mips_TPREL_HI:
-    FixupKind = Mips::fixup_Mips_TPREL_HI;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_TPREL_HI16
+                            : Mips::fixup_Mips_TPREL_HI;
     break;
   case MCSymbolRefExpr::VK_Mips_TPREL_LO:
-    FixupKind = Mips::fixup_Mips_TPREL_LO;
+    FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_TPREL_LO16
+                            : Mips::fixup_Mips_TPREL_LO;
     break;
   case MCSymbolRefExpr::VK_Mips_HIGHER:
     FixupKind = Mips::fixup_Mips_HIGHER;