Add in the first step of the multiple pointer support. This adds in support to the...

[oota-llvm.git] / include / llvm / Target / TargetELFWriterInfo.h

diff --git a/include/llvm/Target/TargetELFWriterInfo.h b/include/llvm/Target/TargetELFWriterInfo.h
index f7e3392577d9d50cb1d3885b0de708f990272491..5e48629cf4d6f1e6fa7415cf9ead4730551cb5a4 100644 (file)
--- a/include/llvm/Target/TargetELFWriterInfo.h
+++ b/include/llvm/Target/TargetELFWriterInfo.h
@@ -15,9 +15,6 @@
 #define LLVM_TARGET_TARGETELFWRITERINFO_H
 
 namespace llvm {
-  class Function;
-  class TargetData;
-  class TargetMachine;
 
   //===--------------------------------------------------------------------===//
   //                          TargetELFWriterInfo
@@ -28,7 +25,6 @@ namespace llvm {
     // EMachine - This field is the target specific value to emit as the
     // e_machine member of the ELF header.
     unsigned short EMachine;
-    TargetMachine &TM;
     bool is64Bit, isLittleEndian;
   public:
 
@@ -47,7 +43,8 @@ namespace llvm {
       EM_ARM = 40,     // ARM
       EM_ALPHA = 41,   // DEC Alpha
       EM_SPARCV9 = 43, // SPARC V9
-      EM_X86_64 = 62   // AMD64
+      EM_X86_64 = 62,  // AMD64
+      EM_HEXAGON = 164 // Qualcomm Hexagon
     };
 
     // ELF File classes
@@ -62,7 +59,7 @@ namespace llvm {
       ELFDATA2MSB = 2  // Big-endian object file
     };
 
-    explicit TargetELFWriterInfo(TargetMachine &tm);
+    explicit TargetELFWriterInfo(bool is64Bit_, bool isLittleEndian_);
     virtual ~TargetELFWriterInfo();
 
     unsigned short getEMachine() const { return EMachine; }
@@ -78,11 +75,45 @@ namespace llvm {
 
     /// Symbol Table Info
     unsigned getSymTabEntrySize() const { return is64Bit ? 24 : 16; }
-    unsigned getSymTabAlignment() const { return is64Bit ? 8 : 4; }
 
-    /// getFunctionAlignment - Returns the alignment for function 'F', targets
-    /// with different alignment constraints should overload this method
-    virtual unsigned getFunctionAlignment(const Function *F) const;
+    /// getPrefELFAlignment - Returns the preferred alignment for ELF. This
+    /// is used to align some sections.
+    unsigned getPrefELFAlignment() const { return is64Bit ? 8 : 4; }
+
+    /// getRelocationEntrySize - Entry size used in the relocation section
+    unsigned getRelocationEntrySize() const {
+      return is64Bit ? (hasRelocationAddend() ? 24 : 16)
+                     : (hasRelocationAddend() ? 12 : 8);
+    }
+
+    /// getRelocationType - Returns the target specific ELF Relocation type.
+    /// 'MachineRelTy' contains the object code independent relocation type
+    virtual unsigned getRelocationType(unsigned MachineRelTy) const = 0;
+
+    /// hasRelocationAddend - True if the target uses an addend in the
+    /// ELF relocation entry.
+    virtual bool hasRelocationAddend() const = 0;
+
+    /// getDefaultAddendForRelTy - Gets the default addend value for a
+    /// relocation entry based on the target ELF relocation type.
+    virtual long int getDefaultAddendForRelTy(unsigned RelTy,
+                                              long int Modifier = 0) const = 0;
+
+    /// getRelTySize - Returns the size of relocatable field in bits
+    virtual unsigned getRelocationTySize(unsigned RelTy) const = 0;
+
+    /// isPCRelativeRel - True if the relocation type is pc relative
+    virtual bool isPCRelativeRel(unsigned RelTy) const = 0;
+
+    /// getJumpTableRelocationTy - Returns the machine relocation type used
+    /// to reference a jumptable.
+    virtual unsigned getAbsoluteLabelMachineRelTy() const = 0;
+
+    /// computeRelocation - Some relocatable fields could be relocated
+    /// directly, avoiding the relocation symbol emission, compute the
+    /// final relocation value for this symbol.
+    virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
+                                       unsigned RelTy) const = 0;
   };
 
 } // end llvm namespace