Sort relocation entries before they are written out to a file. MIPS ABI

[oota-llvm.git] / lib / Target / Mips / MCTargetDesc / MipsBaseInfo.h

diff --git a/lib/Target/Mips/MCTargetDesc/MipsBaseInfo.h b/lib/Target/Mips/MCTargetDesc/MipsBaseInfo.h
index 66c6f8ebdd5472a5856a84af9d64a0324691779a..fb1c5ce6b6c6fabe572a2dcaf462faf8b47d5eb6 100644 (file)
--- a/lib/Target/Mips/MCTargetDesc/MipsBaseInfo.h
+++ b/lib/Target/Mips/MCTargetDesc/MipsBaseInfo.h
@@ -1,4 +1,4 @@
-//===-- MipsBaseInfo.h - Top level definitions for ARM ------- --*- C++ -*-===//
+//===-- MipsBaseInfo.h - Top level definitions for MIPS MC ------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -14,7 +14,9 @@
 #ifndef MIPSBASEINFO_H
 #define MIPSBASEINFO_H
 
+#include "MipsFixupKinds.h"
 #include "MipsMCTargetDesc.h"
+#include "llvm/MC/MCExpr.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/ErrorHandling.h"
 
@@ -31,8 +33,9 @@ namespace MipsII {
 
     MO_NO_FLAG,
 
-    /// MO_GOT - Represents the offset into the global offset table at which
+    /// MO_GOT16 - Represents the offset into the global offset table at which
     /// the address the relocation entry symbol resides during execution.
+    MO_GOT16,
     MO_GOT,
 
     /// MO_GOT_CALL - Represents the offset into the global offset table at
@@ -55,6 +58,13 @@ namespace MipsII {
     // Dynamic TLS).
     MO_TLSGD,
 
+    /// MO_TLSLDM - Represents the offset into the global offset table at which
+    // the module ID and TSL block offset reside during execution (Local
+    // Dynamic TLS).
+    MO_TLSLDM,
+    MO_DTPREL_HI,
+    MO_DTPREL_LO,
+
     /// MO_GOTTPREL - Represents the offset from the thread pointer (Initial
     // Exec TLS).
     MO_GOTTPREL,
@@ -183,13 +193,40 @@ inline static unsigned getMipsRegisterNumbering(unsigned RegEnum)
   case Mips::HWR29:
     return 29;
   case Mips::FP: case Mips::FP_64: case Mips::F30: case Mips::D30_64:
-  case Mips::D15: 
+  case Mips::D15:
     return 30;
   case Mips::RA: case Mips::RA_64: case Mips::F31: case Mips::D31_64:
     return 31;
   default: llvm_unreachable("Unknown register number!");
   }
-  return 0; // Not reached
+}
+
+inline static std::pair<const MCSymbolRefExpr*, int64_t>
+MipsGetSymAndOffset(const MCFixup &Fixup) {
+  MCFixupKind FixupKind = Fixup.getKind();
+
+  if ((FixupKind < FirstTargetFixupKind) ||
+      (FixupKind >= MCFixupKind(Mips::LastTargetFixupKind)))
+    return std::make_pair((const MCSymbolRefExpr*)0, (int64_t)0);
+
+  const MCExpr *Expr = Fixup.getValue();
+  MCExpr::ExprKind Kind = Expr->getKind();
+
+  if (Kind == MCExpr::Binary) {
+    const MCBinaryExpr *BE = static_cast<const MCBinaryExpr*>(Expr);
+    const MCExpr *LHS = BE->getLHS();
+    const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(BE->getRHS());
+
+    if ((LHS->getKind() != MCExpr::SymbolRef) || !CE)
+      return std::make_pair((const MCSymbolRefExpr*)0, (int64_t)0);
+
+    return std::make_pair(cast<MCSymbolRefExpr>(LHS), CE->getValue());
+  }
+
+  if (Kind != MCExpr::SymbolRef)
+    return std::make_pair((const MCSymbolRefExpr*)0, (int64_t)0);
+
+  return std::make_pair(cast<MCSymbolRefExpr>(Expr), 0);
 }
 }